binutils-gdb/gdb/NEWS

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What has changed in GDB?
(Organized release by release)
*** Changes since GDB 7.8
* GDB now supports hardware watchpoints on x86 GNU Hurd.
* Python Scripting
** You can now access frame registers from Python scripts.
** New attribute 'producer' for gdb.Symtab objects.
** gdb.Objfile objects have a new attribute "progspace",
which is the gdb.Progspace object of the containing program space.
** A new event "gdb.clear_objfiles" has been added, triggered when
selecting a new file to debug.
** You can now add attributes to gdb.Objfile and gdb.Progspace objects.
* New Python-based convenience functions:
** $_caller_is(name [, number_of_frames])
** $_caller_matches(regexp [, number_of_frames])
** $_any_caller_is(name [, number_of_frames])
** $_any_caller_matches(regexp [, number_of_frames])
* New commands
queue-signal signal-name-or-number
Queue a signal to be delivered to the thread when it is resumed.
Always pass signals to the right thread Currently, GDB can pass a signal to the wrong thread in several different but related scenarios. E.g., if thread 1 stops for signal SIGFOO, the user switches to thread 2, and then issues "continue", SIGFOO is actually delivered to thread 2, not thread 1. This obviously messes up programs that use pthread_kill to send signals to specific threads. This has been a known issue for a long while. Back in 2008 when I made stop_signal be per-thread (2020b7ab), I kept the behavior -- see code in 'proceed' being removed -- wanting to come back to it later. The time has finally come now. The patch fixes this -- on resumption, intercepted signals are always delivered to the thread that had intercepted them. Another example: if thread 1 stops for a breakpoint, the user switches to thread 2, and then issues "signal SIGFOO", SIGFOO is actually delivered to thread 1, not thread 2, because 'proceed' first switches to thread 1 to step over its breakpoint... If the user deletes the breakpoint before issuing "signal FOO", then the signal is delivered to thread 2 (the current thread). "signal SIGFOO" can be used for two things: inject a signal in the program while the program/thread had stopped for none, bypassing "handle nopass"; or changing/suppressing a signal the program had stopped for. These scenarios are really two faces of the same coin, and GDB can't really guess what the user is trying to do. GDB might have intercepted signals in more than one thread even (see the new signal-command-multiple-signals-pending.exp test). At least in the inject case, it's obviously clear to me that the user means to deliver the signal to the currently selected thread, so best is to make the command's behavior consistent and easy to explain. Then, if the user is trying to suppress/change a signal the program had stopped for instead of injecting a new signal, but, the user had changed threads meanwhile, then she will be surprised that with: (gdb) continue Thread 1 stopped for signal SIGFOO. (gdb) thread 2 (gdb) signal SIGBAR ... GDB actually delivers SIGFOO to thread 1, and SIGBAR to thread 2 (with scheduler-locking off, which is the default, because then "signal" or any other resumption command resumes all threads). So the patch makes GDB detect that, and ask for confirmation: (gdb) thread 1 [Switching to thread 1 (Thread 10979)] (gdb) signal SIGUSR2 Note: Thread 3 previously stopped with signal SIGUSR2, User defined signal 2. Thread 2 previously stopped with signal SIGUSR1, User defined signal 1. Continuing thread 1 (the current thread) with specified signal will still deliver the signals noted above to their respective threads. Continue anyway? (y or n) All these scenarios are covered by the new tests. Tested on x86_64 Fedora 20, native and gdbserver. gdb/ 2014-07-25 Pedro Alves <palves@redhat.com> * NEWS: Mention signal passing and "signal" command changes. * gdbthread.h (struct thread_suspend_state) <stop_signal>: Extend comment. * breakpoint.c (until_break_command): Adjust clear_proceed_status call. * infcall.c (run_inferior_call): Adjust clear_proceed_status call. * infcmd.c (proceed_thread_callback, continue_1, step_once) (jump_command): Adjust clear_proceed_status call. (signal_command): Warn if other thread that are resumed have signals that will be delivered. Adjust clear_proceed_status call. (until_next_command, finish_command) (proceed_after_attach_callback, attach_command_post_wait) (attach_command): Adjust clear_proceed_status call. * infrun.c (proceed_after_vfork_done): Likewise. (proceed_after_attach_callback): Adjust comment. (clear_proceed_status_thread): Clear stop_signal if not in pass state. (clear_proceed_status_callback): Delete. (clear_proceed_status): New 'step' parameter. Only clear the proceed status of threads the command being prepared is about to resume. (proceed): If passed in an explicit signal, override stop_signal with it. Don't pass the last stop signal to the thread we're resuming. (init_wait_for_inferior): Adjust clear_proceed_status call. (switch_back_to_stepped_thread): Clear the signal if it should not be passed. * infrun.h (clear_proceed_status): New 'step' parameter. (user_visible_resume_ptid): Add comment. * linux-nat.c (linux_nat_resume_callback): Don't check whether the signal is in pass state. * remote.c (append_pending_thread_resumptions): Likewise. * mi/mi-main.c (proceed_thread): Adjust clear_proceed_status call. gdb/doc/ 2014-07-25 Pedro Alves <palves@redhat.com> Eli Zaretskii <eliz@gnu.org> * gdb.texinfo (Signaling) <signal command>: Explain what happens with multi-threaded programs. gdb/testsuite/ 2014-07-25 Pedro Alves <palves@redhat.com> * gdb.threads/signal-command-handle-nopass.c: New file. * gdb.threads/signal-command-handle-nopass.exp: New file. * gdb.threads/signal-command-multiple-signals-pending.c: New file. * gdb.threads/signal-command-multiple-signals-pending.exp: New file. * gdb.threads/signal-delivered-right-thread.c: New file. * gdb.threads/signal-delivered-right-thread.exp: New file.
2014-07-25 17:57:31 +02:00
* On resume, GDB now always passes the signal the program had stopped
for to the thread the signal was sent to, even if the user changed
threads before resuming. Previously GDB would often (but not
always) deliver the signal to the thread that happens to be current
at resume time.
* Conversely, the "signal" command now consistently delivers the
requested signal to the current thread. GDB now asks for
confirmation if the program had stopped for a signal and the user
switched threads meanwhile.
Fix "breakpoint always-inserted off"; remove "breakpoint always-inserted auto" By default, GDB removes all breakpoints from the target when the target stops and the prompt is given back to the user. This is useful in case GDB crashes while the user is interacting, as otherwise, there's a higher chance breakpoints would be left planted on the target. But, as long as any thread is running free, we need to make sure to keep breakpoints inserted, lest a thread misses a breakpoint. With that in mind, in preparation for non-stop mode, we added a "breakpoint always-inserted on" mode. This traded off the extra crash protection for never having threads miss breakpoints, and in addition is more efficient if there's a ton of breakpoints to remove/insert at each user command (e.g., at each "step"). When we added non-stop mode, and for a period, we required users to manually set "always-inserted on" when they enabled non-stop mode, as otherwise GDB removes all breakpoints from the target as soon as any thread stops, which means the other threads still running will miss breakpoints. The test added by this patch exercises this. That soon revealed a nuisance, and so later we added an extra "breakpoint always-inserted auto" mode, that made GDB behave like "always-inserted on" when non-stop was enabled, and "always-inserted off" when non-stop was disabled. "auto" was made the default at the same time. In hindsight, this "auto" setting was unnecessary, and not the ideal solution. Non-stop mode does depends on breakpoints always-inserted mode, but only as long as any thread is running. If no thread is running, no breakpoint can be missed. The same is true for all-stop too. E.g., if, in all-stop mode, and the user does: (gdb) c& (gdb) b foo That breakpoint at "foo" should be inserted immediately, but it currently isn't -- currently it'll end up inserted only if the target happens to trip on some event, and is re-resumed, e.g., an internal breakpoint triggers that doesn't cause a user-visible stop, and so we end up in keep_going calling insert_breakpoints. The test added by this patch also covers this. IOW, no matter whether in non-stop or all-stop, if the target fully stops, we can remove breakpoints. And no matter whether in all-stop or non-stop, if any thread is running in the target, then we need breakpoints to be immediately inserted. And then, if the target has global breakpoints, we need to keep breakpoints even when the target is stopped. So with that in mind, and aiming at reducing all-stop vs non-stop differences for all-stop-on-stop-of-non-stop, this patch fixes "breakpoint always-inserted off" to not remove breakpoints from the target until it fully stops, and then removes the "auto" setting as unnecessary. I propose removing it straight away rather than keeping it as an alias, unless someone complains they have scripts that need it and that can't adjust. Tested on x86_64 Fedora 20. gdb/ 2014-09-22 Pedro Alves <palves@redhat.com> * NEWS: Mention merge of "breakpoint always-inserted" modes "off" and "auto" merged. * breakpoint.c (enum ugll_insert_mode): New enum. (always_inserted_mode): Now a plain boolean. (show_always_inserted_mode): No longer handle AUTO_BOOLEAN_AUTO. (breakpoints_always_inserted_mode): Delete. (breakpoints_should_be_inserted_now): New function. (insert_breakpoints): Pass UGLL_INSERT to update_global_location_list instead of calling insert_breakpoint_locations manually. (create_solib_event_breakpoint_1): New, factored out from ... (create_solib_event_breakpoint): ... this. (create_and_insert_solib_event_breakpoint): Use create_solib_event_breakpoint_1 instead of calling insert_breakpoint_locations manually. (update_global_location_list): Change parameter type from boolean to enum ugll_insert_mode. All callers adjusted. Adjust to use breakpoints_should_be_inserted_now and handle UGLL_INSERT. (update_global_location_list_nothrow): Change parameter type from boolean to enum ugll_insert_mode. (_initialize_breakpoint): "breakpoint always-inserted" option is now a boolean command. Update help text. * breakpoint.h (breakpoints_always_inserted_mode): Delete declaration. (breakpoints_should_be_inserted_now): New declaration. * infrun.c (handle_inferior_event) <TARGET_WAITKIND_LOADED>: Remove breakpoints_always_inserted_mode check. (normal_stop): Adjust to use breakpoints_should_be_inserted_now. * remote.c (remote_start_remote): Likewise. gdb/doc/ 2014-09-22 Pedro Alves <palves@redhat.com> * gdb.texinfo (Set Breaks): Document that "set breakpoint always-inserted off" is the default mode now. Delete documentation of "set breakpoint always-inserted auto". gdb/testsuite/ 2014-09-22 Pedro Alves <palves@redhat.com> * gdb.threads/break-while-running.exp: New file. * gdb.threads/break-while-running.c: New file.
2014-09-22 10:56:55 +02:00
* "breakpoint always-inserted" modes "off" and "auto" merged.
Now, when 'breakpoint always-inserted mode' is set to "off", GDB
won't remove breakpoints from the target until all threads stop,
even in non-stop mode. The "auto" mode has been removed, and "off"
is now the default mode.
* MI changes
** The -list-thread-groups command outputs an exit-code field for
inferiors that have exited.
Delete IRIX support This does most of the mechanical removal. IOW, the easy part. This doesn't touch procfs.c as that'd be a harder excision, potentially affecting Solaris. mips-tdep.c is left alone. E.g., I didn't delete the GDB_OSABI_IRIX enum value, nor references to it in mips-tdep.c. Some comments mentioning IRIX ABIs may still be relevant and I wouldn't know what to do with them. in That can always be done on a separate pass, preferably by someone who can test on MIPS. I didn't remove a reference to IRIX in testsuite/lib/future.exp, as I believe that code is imported from DejaGNU. Built and tested on x86_64 Fedora 20, with --enable-targets=all. Tested that building for --target=mips-sgi-irix6 on x86_64 Fedora 20 fails with: checking for default auto-load directory... $debugdir:$datadir/auto-load checking for default auto-load safe-path... $debugdir:$datadir/auto-load *** Configuration mips-sgi-irix6 is obsolete. *** Support has been REMOVED. make[1]: *** [configure-gdb] Error 1 make[1]: Leaving directory `/home/pedro/gdb/mygit/build-irix' make: *** [all] Error 2 gdb/ 2014-10-10 Pedro Alves <palves@redhat.com> * Makefile.in (ALL_TARGET_OBS): Remove mips-irix-tdep.o and solib-irix.o. (ALLDEPFILES): Remove mips-irix-tdep.c and solib-irix.c. (HFILES_NO_SRCDIR): Remove solib-irix.h. * NEWS: Mention that support for mips-sgi-irix5* mips-sgi-irix6* and been removed. * config/mips/irix5.mh, config/mips/irix6.mh: Delete files. * configure.ac: Remove references to IRIX. * configure.host: Add *-*-irix* to the obsolete hosts section. Remove all other references to irix. * irix5-nat.c, mips-irix-tdep.c, solib-irix.c, solib-irix.h: Delete files. gdb/testsuite/ 2014-10-10 Pedro Alves <palves@redhat.com> * gdb.base/bigcore.exp: Remove references to IRIX. * gdb.base/funcargs.exp: Likewise. * gdb.base/interrupt.exp: Likewise. * gdb.base/mips_pro.exp: Likewise. * gdb.base/nodebug.exp: Likewise. * gdb.base/setvar.exp: Likewise. * lib/gdb.exp (gdb_compile_shlib): Remove mips-sgi-irix* case.
2014-10-10 19:18:52 +02:00
* Removed targets
Support for these obsolete configurations has been removed.
Alpha running OSF/1 (or Tru64) alpha*-*-osf*
SGI Irix-5.x mips-*-irix5*
SGI Irix-6.x mips-*-irix6*
VAX running (4.2 - 4.3 Reno) BSD vax-*-bsd*
VAX running Ultrix vax-*-ultrix*
Delete IRIX support This does most of the mechanical removal. IOW, the easy part. This doesn't touch procfs.c as that'd be a harder excision, potentially affecting Solaris. mips-tdep.c is left alone. E.g., I didn't delete the GDB_OSABI_IRIX enum value, nor references to it in mips-tdep.c. Some comments mentioning IRIX ABIs may still be relevant and I wouldn't know what to do with them. in That can always be done on a separate pass, preferably by someone who can test on MIPS. I didn't remove a reference to IRIX in testsuite/lib/future.exp, as I believe that code is imported from DejaGNU. Built and tested on x86_64 Fedora 20, with --enable-targets=all. Tested that building for --target=mips-sgi-irix6 on x86_64 Fedora 20 fails with: checking for default auto-load directory... $debugdir:$datadir/auto-load checking for default auto-load safe-path... $debugdir:$datadir/auto-load *** Configuration mips-sgi-irix6 is obsolete. *** Support has been REMOVED. make[1]: *** [configure-gdb] Error 1 make[1]: Leaving directory `/home/pedro/gdb/mygit/build-irix' make: *** [all] Error 2 gdb/ 2014-10-10 Pedro Alves <palves@redhat.com> * Makefile.in (ALL_TARGET_OBS): Remove mips-irix-tdep.o and solib-irix.o. (ALLDEPFILES): Remove mips-irix-tdep.c and solib-irix.c. (HFILES_NO_SRCDIR): Remove solib-irix.h. * NEWS: Mention that support for mips-sgi-irix5* mips-sgi-irix6* and been removed. * config/mips/irix5.mh, config/mips/irix6.mh: Delete files. * configure.ac: Remove references to IRIX. * configure.host: Add *-*-irix* to the obsolete hosts section. Remove all other references to irix. * irix5-nat.c, mips-irix-tdep.c, solib-irix.c, solib-irix.h: Delete files. gdb/testsuite/ 2014-10-10 Pedro Alves <palves@redhat.com> * gdb.base/bigcore.exp: Remove references to IRIX. * gdb.base/funcargs.exp: Likewise. * gdb.base/interrupt.exp: Likewise. * gdb.base/mips_pro.exp: Likewise. * gdb.base/nodebug.exp: Likewise. * gdb.base/setvar.exp: Likewise. * lib/gdb.exp (gdb_compile_shlib): Remove mips-sgi-irix* case.
2014-10-10 19:18:52 +02:00
*** Changes in GDB 7.8
* New command line options
-D data-directory
This is an alias for the --data-directory option.
* GDB supports printing and modifying of variable length automatic arrays
as specified in ISO C99.
* The ARM simulator now supports instruction level tracing
with or without disassembly.
Add Guile as an extension language. * NEWS: Mention Guile scripting. * Makefile.in (SUBDIR_GUILE_OBS): New variable. (SUBDIR_GUILE_SRCS, SUBDIR_GUILE_DEPS): New variables (SUBDIR_GUILE_LDFLAGS, SUBDIR_GUILE_CFLAGS): New variables. (INTERNAL_CPPFLAGS): Add GUILE_CPPFLAGS. (CLIBS): Add GUILE_LIBS. (install-guile): New rule. (guile.o): New rule. (scm-arch.o, scm-auto-load.o, scm-block.o): New rules. (scm-breakpoint.o, scm-disasm.o, scm-exception.o): New rules. (scm-frame.o, scm-iterator.o, scm-lazy-string.o): New rules. (scm-math.o, scm-objfile.o, scm-ports.o): New rules. (scm-pretty-print.o, scm-safe-call.o, scm-gsmob.o): New rules. (scm-string.o, scm-symbol.o, scm-symtab.o): New rules. (scm-type.o, scm-utils.o, scm-value.o): New rules. * configure.ac: New option --with-guile. * configure: Regenerate. * config.in: Regenerate. * auto-load.c: Remove #include "python/python.h". Add #include "gdb/section-scripts.h". (source_section_scripts): Handle Guile scripts. (_initialize_auto_load): Add name of Guile objfile script to scripts-directory help text. * breakpoint.c (condition_command): Tweak comment to include Scheme. * breakpoint.h (gdbscm_breakpoint_object): Add forward decl. (struct breakpoint): New member scm_bp_object. * defs.h (enum command_control_type): New value guile_control. * cli/cli-cmds.c: Remove #include "python/python.h". Add #include "extension.h". (show_user): Update comment. (_initialize_cli_cmds): Update help text for "show user". Update help text for max-user-call-depth. * cli/cli-script.c: Remove #include "python/python.h". Add #include "extension.h". (multi_line_command_p): Add guile_control. (print_command_lines): Handle guile_control. (execute_control_command, recurse_read_control_structure): Ditto. (process_next_line): Recognize "guile" commands. * disasm.c (gdb_disassemble_info): Make non-static. * disasm.h: #include "dis-asm.h". (struct gdbarch): Add forward decl. (gdb_disassemble_info): Declare. * extension.c: #include "guile/guile.h". (extension_languages): Add guile. (get_ext_lang_defn): Handle EXT_LANG_GDB. * extension.h (enum extension_language): New value EXT_LANG_GUILE. * gdbtypes.c (get_unsigned_type_max): New function. (get_signed_type_minmax): New function. * gdbtypes.h (get_unsigned_type_max): Declare. (get_signed_type_minmax): Declare. * guile/README: New file. * guile/guile-internal.h: New file. * guile/guile.c: New file. * guile/guile.h: New file. * guile/scm-arch.c: New file. * guile/scm-auto-load.c: New file. * guile/scm-block.c: New file. * guile/scm-breakpoint.c: New file. * guile/scm-disasm.c: New file. * guile/scm-exception.c: New file. * guile/scm-frame.c: New file. * guile/scm-gsmob.c: New file. * guile/scm-iterator.c: New file. * guile/scm-lazy-string.c: New file. * guile/scm-math.c: New file. * guile/scm-objfile.c: New file. * guile/scm-ports.c: New file. * guile/scm-pretty-print.c: New file. * guile/scm-safe-call.c: New file. * guile/scm-string.c: New file. * guile/scm-symbol.c: New file. * guile/scm-symtab.c: New file. * guile/scm-type.c: New file. * guile/scm-utils.c: New file. * guile/scm-value.c: New file. * guile/lib/gdb.scm: New file. * guile/lib/gdb/boot.scm: New file. * guile/lib/gdb/experimental.scm: New file. * guile/lib/gdb/init.scm: New file. * guile/lib/gdb/iterator.scm: New file. * guile/lib/gdb/printing.scm: New file. * guile/lib/gdb/types.scm: New file. * data-directory/Makefile.in (GUILE_SRCDIR): New variable. (VPATH): Add $(GUILE_SRCDIR). (GUILE_DIR): New variable. (GUILE_INSTALL_DIR, GUILE_FILES): New variables. (all): Add stamp-guile dependency. (stamp-guile): New rule. (clean-guile, install-guile, uninstall-guile): New rules. (install-only): Add install-guile dependency. (uninstall): Add uninstall-guile dependency. (clean): Add clean-guile dependency. doc/ * Makefile.in (GDB_DOC_FILES): Add guile.texi. * gdb.texinfo (Auto-loading): Add set/show auto-load guile-scripts. (Extending GDB): New menu entries Guile, Multiple Extension Languages. (Guile docs): Include guile.texi. (objfile-gdbdotext file): Add objfile-gdb.scm. (dotdebug_gdb_scripts section): Mention Guile scripts. (Multiple Extension Languages): New node. * guile.texi: New file. testsuite/ * configure.ac (AC_OUTPUT): Add gdb.guile. * configure: Regenerate. * lib/gdb-guile.exp: New file. * lib/gdb.exp (get_target_charset): New function. * gdb.base/help.exp: Update expected output from "apropos apropos". * gdb.guile/Makefile.in: New file. * gdb.guile/guile.exp: New file. * gdb.guile/scm-arch.c: New file. * gdb.guile/scm-arch.exp: New file. * gdb.guile/scm-block.c: New file. * gdb.guile/scm-block.exp: New file. * gdb.guile/scm-breakpoint.c: New file. * gdb.guile/scm-breakpoint.exp: New file. * gdb.guile/scm-disasm.c: New file. * gdb.guile/scm-disasm.exp: New file. * gdb.guile/scm-equal.c: New file. * gdb.guile/scm-equal.exp: New file. * gdb.guile/scm-error.exp: New file. * gdb.guile/scm-error.scm: New file. * gdb.guile/scm-frame-args.c: New file. * gdb.guile/scm-frame-args.exp: New file. * gdb.guile/scm-frame-args.scm: New file. * gdb.guile/scm-frame-inline.c: New file. * gdb.guile/scm-frame-inline.exp: New file. * gdb.guile/scm-frame.c: New file. * gdb.guile/scm-frame.exp: New file. * gdb.guile/scm-generics.exp: New file. * gdb.guile/scm-gsmob.exp: New file. * gdb.guile/scm-iterator.c: New file. * gdb.guile/scm-iterator.exp: New file. * gdb.guile/scm-math.c: New file. * gdb.guile/scm-math.exp: New file. * gdb.guile/scm-objfile-script-gdb.in: New file. * gdb.guile/scm-objfile-script.c: New file. * gdb.guile/scm-objfile-script.exp: New file. * gdb.guile/scm-objfile.c: New file. * gdb.guile/scm-objfile.exp: New file. * gdb.guile/scm-ports.exp: New file. * gdb.guile/scm-pretty-print.c: New file. * gdb.guile/scm-pretty-print.exp: New file. * gdb.guile/scm-pretty-print.scm: New file. * gdb.guile/scm-section-script.c: New file. * gdb.guile/scm-section-script.exp: New file. * gdb.guile/scm-section-script.scm: New file. * gdb.guile/scm-symbol.c: New file. * gdb.guile/scm-symbol.exp: New file. * gdb.guile/scm-symtab-2.c: New file. * gdb.guile/scm-symtab.c: New file. * gdb.guile/scm-symtab.exp: New file. * gdb.guile/scm-type.c: New file. * gdb.guile/scm-type.exp: New file. * gdb.guile/scm-value-cc.cc: New file. * gdb.guile/scm-value-cc.exp: New file. * gdb.guile/scm-value.c: New file. * gdb.guile/scm-value.exp: New file. * gdb.guile/source2.scm: New file. * gdb.guile/types-module.cc: New file. * gdb.guile/types-module.exp: New file.
2014-02-10 04:40:01 +01:00
* Guile scripting
GDB now has support for scripting using Guile. Whether this is
available is determined at configure time.
Guile version 2.0 or greater is required.
Guile version 2.0.9 is well tested, earlier 2.0 versions are not.
* New commands (for set/show, see "New options" below)
guile [code]
gu [code]
Invoke CODE by passing it to the Guile interpreter.
guile-repl
gr
Start a Guile interactive prompt (or "repl" for "read-eval-print loop").
info auto-load guile-scripts [regexp]
Print the list of automatically loaded Guile scripts.
* The source command is now capable of sourcing Guile scripts.
This feature is dependent on the debugger being built with Guile support.
New Ada maintenance command to ignore descriptive types (DWARF). Currently, Ada debugging requires the use of certain GNAT-specific encodings, which are generated by the compiler. These encodings were created a long time ago to work around the fairly limited capabilities of the stabs debugging format. With DWARF, the vast majority of the encodings could be abandoned in favor of a pure DWARF approach. In order to make it easier to evaluate the quality of the DWARF debugging information generated by the compiler, and how the debugger handles it, we are introducing a small Ada-specific maintenance setting which changes the debugger's behavior to ignore descriptive types. Descriptive types are artificial types generated by the compiler purely to give the debugger hints as to how to properly decode certain properties of a type. For instance, for array types, it generates a parallel type whose name is the name of the array suffixed with ___XA, whose contents tells us what the array's index type is, and possibly its bounds. See GCC's gcc/ada/exp_dbug.ads for the full description of all encodings. This is only a first step, as this setting does not deactivate all encodings; More settings dedicated to each type of encoding will likely be implemented in the future, as we make progress. gdb/ChangeLog: * ada-lang.c (maint_set_ada_cmdlist, maint_show_ada_cmdlist): New static globals. (maint_set_ada_cmd, maint_show_ada_cmd): New functions. (ada_ignore_descriptive_types_p): New static global. (find_parallel_type_by_descriptive_type): Return immediately if ada_ignore_descriptive_types_p is set. (_initialize_ada_language): Register new commands "maintenance set ada", "maintenance show ada", "maintenance set ada ignore-descriptive-types" and "maintenance show ada ignore-descriptive-types". * NEWS: Add entry for new "maint ada set/show ignore-descriptive-types" commands. gdb/doc/ChangeLog: * gdb.texinfo (Ada Glitches): Document the new "maint ada set/show ignore-descriptive-types". commands.
2014-01-16 12:08:16 +01:00
* New options
set print symbol-loading (off|brief|full)
show print symbol-loading
Control whether to print informational messages when loading symbol
information for a file. The default is "full", but when debugging
programs with large numbers of shared libraries the amount of output
becomes less useful.
Add Guile as an extension language. * NEWS: Mention Guile scripting. * Makefile.in (SUBDIR_GUILE_OBS): New variable. (SUBDIR_GUILE_SRCS, SUBDIR_GUILE_DEPS): New variables (SUBDIR_GUILE_LDFLAGS, SUBDIR_GUILE_CFLAGS): New variables. (INTERNAL_CPPFLAGS): Add GUILE_CPPFLAGS. (CLIBS): Add GUILE_LIBS. (install-guile): New rule. (guile.o): New rule. (scm-arch.o, scm-auto-load.o, scm-block.o): New rules. (scm-breakpoint.o, scm-disasm.o, scm-exception.o): New rules. (scm-frame.o, scm-iterator.o, scm-lazy-string.o): New rules. (scm-math.o, scm-objfile.o, scm-ports.o): New rules. (scm-pretty-print.o, scm-safe-call.o, scm-gsmob.o): New rules. (scm-string.o, scm-symbol.o, scm-symtab.o): New rules. (scm-type.o, scm-utils.o, scm-value.o): New rules. * configure.ac: New option --with-guile. * configure: Regenerate. * config.in: Regenerate. * auto-load.c: Remove #include "python/python.h". Add #include "gdb/section-scripts.h". (source_section_scripts): Handle Guile scripts. (_initialize_auto_load): Add name of Guile objfile script to scripts-directory help text. * breakpoint.c (condition_command): Tweak comment to include Scheme. * breakpoint.h (gdbscm_breakpoint_object): Add forward decl. (struct breakpoint): New member scm_bp_object. * defs.h (enum command_control_type): New value guile_control. * cli/cli-cmds.c: Remove #include "python/python.h". Add #include "extension.h". (show_user): Update comment. (_initialize_cli_cmds): Update help text for "show user". Update help text for max-user-call-depth. * cli/cli-script.c: Remove #include "python/python.h". Add #include "extension.h". (multi_line_command_p): Add guile_control. (print_command_lines): Handle guile_control. (execute_control_command, recurse_read_control_structure): Ditto. (process_next_line): Recognize "guile" commands. * disasm.c (gdb_disassemble_info): Make non-static. * disasm.h: #include "dis-asm.h". (struct gdbarch): Add forward decl. (gdb_disassemble_info): Declare. * extension.c: #include "guile/guile.h". (extension_languages): Add guile. (get_ext_lang_defn): Handle EXT_LANG_GDB. * extension.h (enum extension_language): New value EXT_LANG_GUILE. * gdbtypes.c (get_unsigned_type_max): New function. (get_signed_type_minmax): New function. * gdbtypes.h (get_unsigned_type_max): Declare. (get_signed_type_minmax): Declare. * guile/README: New file. * guile/guile-internal.h: New file. * guile/guile.c: New file. * guile/guile.h: New file. * guile/scm-arch.c: New file. * guile/scm-auto-load.c: New file. * guile/scm-block.c: New file. * guile/scm-breakpoint.c: New file. * guile/scm-disasm.c: New file. * guile/scm-exception.c: New file. * guile/scm-frame.c: New file. * guile/scm-gsmob.c: New file. * guile/scm-iterator.c: New file. * guile/scm-lazy-string.c: New file. * guile/scm-math.c: New file. * guile/scm-objfile.c: New file. * guile/scm-ports.c: New file. * guile/scm-pretty-print.c: New file. * guile/scm-safe-call.c: New file. * guile/scm-string.c: New file. * guile/scm-symbol.c: New file. * guile/scm-symtab.c: New file. * guile/scm-type.c: New file. * guile/scm-utils.c: New file. * guile/scm-value.c: New file. * guile/lib/gdb.scm: New file. * guile/lib/gdb/boot.scm: New file. * guile/lib/gdb/experimental.scm: New file. * guile/lib/gdb/init.scm: New file. * guile/lib/gdb/iterator.scm: New file. * guile/lib/gdb/printing.scm: New file. * guile/lib/gdb/types.scm: New file. * data-directory/Makefile.in (GUILE_SRCDIR): New variable. (VPATH): Add $(GUILE_SRCDIR). (GUILE_DIR): New variable. (GUILE_INSTALL_DIR, GUILE_FILES): New variables. (all): Add stamp-guile dependency. (stamp-guile): New rule. (clean-guile, install-guile, uninstall-guile): New rules. (install-only): Add install-guile dependency. (uninstall): Add uninstall-guile dependency. (clean): Add clean-guile dependency. doc/ * Makefile.in (GDB_DOC_FILES): Add guile.texi. * gdb.texinfo (Auto-loading): Add set/show auto-load guile-scripts. (Extending GDB): New menu entries Guile, Multiple Extension Languages. (Guile docs): Include guile.texi. (objfile-gdbdotext file): Add objfile-gdb.scm. (dotdebug_gdb_scripts section): Mention Guile scripts. (Multiple Extension Languages): New node. * guile.texi: New file. testsuite/ * configure.ac (AC_OUTPUT): Add gdb.guile. * configure: Regenerate. * lib/gdb-guile.exp: New file. * lib/gdb.exp (get_target_charset): New function. * gdb.base/help.exp: Update expected output from "apropos apropos". * gdb.guile/Makefile.in: New file. * gdb.guile/guile.exp: New file. * gdb.guile/scm-arch.c: New file. * gdb.guile/scm-arch.exp: New file. * gdb.guile/scm-block.c: New file. * gdb.guile/scm-block.exp: New file. * gdb.guile/scm-breakpoint.c: New file. * gdb.guile/scm-breakpoint.exp: New file. * gdb.guile/scm-disasm.c: New file. * gdb.guile/scm-disasm.exp: New file. * gdb.guile/scm-equal.c: New file. * gdb.guile/scm-equal.exp: New file. * gdb.guile/scm-error.exp: New file. * gdb.guile/scm-error.scm: New file. * gdb.guile/scm-frame-args.c: New file. * gdb.guile/scm-frame-args.exp: New file. * gdb.guile/scm-frame-args.scm: New file. * gdb.guile/scm-frame-inline.c: New file. * gdb.guile/scm-frame-inline.exp: New file. * gdb.guile/scm-frame.c: New file. * gdb.guile/scm-frame.exp: New file. * gdb.guile/scm-generics.exp: New file. * gdb.guile/scm-gsmob.exp: New file. * gdb.guile/scm-iterator.c: New file. * gdb.guile/scm-iterator.exp: New file. * gdb.guile/scm-math.c: New file. * gdb.guile/scm-math.exp: New file. * gdb.guile/scm-objfile-script-gdb.in: New file. * gdb.guile/scm-objfile-script.c: New file. * gdb.guile/scm-objfile-script.exp: New file. * gdb.guile/scm-objfile.c: New file. * gdb.guile/scm-objfile.exp: New file. * gdb.guile/scm-ports.exp: New file. * gdb.guile/scm-pretty-print.c: New file. * gdb.guile/scm-pretty-print.exp: New file. * gdb.guile/scm-pretty-print.scm: New file. * gdb.guile/scm-section-script.c: New file. * gdb.guile/scm-section-script.exp: New file. * gdb.guile/scm-section-script.scm: New file. * gdb.guile/scm-symbol.c: New file. * gdb.guile/scm-symbol.exp: New file. * gdb.guile/scm-symtab-2.c: New file. * gdb.guile/scm-symtab.c: New file. * gdb.guile/scm-symtab.exp: New file. * gdb.guile/scm-type.c: New file. * gdb.guile/scm-type.exp: New file. * gdb.guile/scm-value-cc.cc: New file. * gdb.guile/scm-value-cc.exp: New file. * gdb.guile/scm-value.c: New file. * gdb.guile/scm-value.exp: New file. * gdb.guile/source2.scm: New file. * gdb.guile/types-module.cc: New file. * gdb.guile/types-module.exp: New file.
2014-02-10 04:40:01 +01:00
set guile print-stack (none|message|full)
show guile print-stack
Show a stack trace when an error is encountered in a Guile script.
set auto-load guile-scripts (on|off)
show auto-load guile-scripts
Control auto-loading of Guile script files.
New Ada maintenance command to ignore descriptive types (DWARF). Currently, Ada debugging requires the use of certain GNAT-specific encodings, which are generated by the compiler. These encodings were created a long time ago to work around the fairly limited capabilities of the stabs debugging format. With DWARF, the vast majority of the encodings could be abandoned in favor of a pure DWARF approach. In order to make it easier to evaluate the quality of the DWARF debugging information generated by the compiler, and how the debugger handles it, we are introducing a small Ada-specific maintenance setting which changes the debugger's behavior to ignore descriptive types. Descriptive types are artificial types generated by the compiler purely to give the debugger hints as to how to properly decode certain properties of a type. For instance, for array types, it generates a parallel type whose name is the name of the array suffixed with ___XA, whose contents tells us what the array's index type is, and possibly its bounds. See GCC's gcc/ada/exp_dbug.ads for the full description of all encodings. This is only a first step, as this setting does not deactivate all encodings; More settings dedicated to each type of encoding will likely be implemented in the future, as we make progress. gdb/ChangeLog: * ada-lang.c (maint_set_ada_cmdlist, maint_show_ada_cmdlist): New static globals. (maint_set_ada_cmd, maint_show_ada_cmd): New functions. (ada_ignore_descriptive_types_p): New static global. (find_parallel_type_by_descriptive_type): Return immediately if ada_ignore_descriptive_types_p is set. (_initialize_ada_language): Register new commands "maintenance set ada", "maintenance show ada", "maintenance set ada ignore-descriptive-types" and "maintenance show ada ignore-descriptive-types". * NEWS: Add entry for new "maint ada set/show ignore-descriptive-types" commands. gdb/doc/ChangeLog: * gdb.texinfo (Ada Glitches): Document the new "maint ada set/show ignore-descriptive-types". commands.
2014-01-16 12:08:16 +01:00
maint ada set ignore-descriptive-types (on|off)
maint ada show ignore-descriptive-types
Control whether the debugger should ignore descriptive types in Ada
programs. The default is not to ignore the descriptive types. See
the user manual for more details on descriptive types and the intended
usage of this option.
Allow making GDB not automatically connect to the native target. Sometimes it's useful to be able to disable the automatic connection to the native target. E.g., sometimes GDB disconnects from the extended-remote target I was debugging, without me noticing it, and then I do "run". That starts the program locally, and only after a little head scratch session do I figure out the program is running locally instead of remotely as intended. Same thing with "attach", "info os", etc. With the patch, we now can have this instead: (gdb) set auto-connect-native-target off (gdb) target extended-remote :9999 ... *gdb disconnects* (gdb) run Don't know how to run. Try "help target". To still be able to connect to the native target with auto-connect-native-target set to off, I've made "target native" work instead of erroring out as today. Before: (gdb) target native Use the "run" command to start a native process. After: (gdb) target native Done. Use the "run" command to start a process. (gdb) maint print target-stack The current target stack is: - native (Native process) - exec (Local exec file) - None (None) (gdb) run Starting program: ./a.out ... I've also wanted this for the testsuite, when running against the native-extended-gdbserver.exp board (runs against gdbserver in extended-remote mode). With a non-native-target board, it's always a bug to launch a program with the native target. Turns out we still have one such case this patch catches: (gdb) break main Breakpoint 1 at 0x4009e5: file ../../../src/gdb/testsuite/gdb.base/coremaker.c, line 138. (gdb) run Don't know how to run. Try "help target". (gdb) FAIL: gdb.base/corefile.exp: run: with core On the patch itself, probably the least obvious bit is the need to go through all targets, and move the unpush_target call to after the generic_mourn_inferior call instead of before. This is what inf-ptrace.c does too, ever since multi-process support was added. The reason inf-ptrace.c does things in that order is that in the current multi-process/single-target model, we shouldn't unpush the target if there are still other live inferiors being debugged. The check for that is "have_inferiors ()" (a misnomer nowadays...), which does: have_inferiors (void) { for (inf = inferior_list; inf; inf = inf->next) if (inf->pid != 0) return 1; It's generic_mourn_inferior that ends up clearing inf->pid, so we need to call it before the have_inferiors check. To make all native targets behave the same WRT to explicit "target native", I've added an inf_child_maybe_unpush_target function that targets call instead of calling unpush_target directly, and as that includes the have_inferiors check, I needed to adjust the targets. Tested on x86_64 Fedora 20, native, and also with the extended-gdbserver board. Confirmed a cross build of djgpp gdb still builds. Smoke tested a cross build of Windows gdb under Wine. Untested otherwise. gdb/ 2014-05-21 Pedro Alves <palves@redhat.com> * inf-child.c (inf_child_ops, inf_child_explicitly_opened): New globals. (inf_child_open_target): New function. (inf_child_open): Use inf_child_open_target to push the target instead of erroring out. (inf_child_disconnect, inf_child_close) (inf_child_maybe_unpush_target): New functions. (inf_child_target): Install inf_child_disconnect and inf_child_close. Store a pointer to the returned object. * inf-child.h (inf_child_open_target, inf_child_maybe_unpush): New declarations. * target.c (auto_connect_native_target): New global. (show_default_run_target): New function. (find_default_run_target): Return NULL if automatically connecting to the native target is disabled. (_initialize_target): Install set/show auto-connect-native-target. * NEWS: Mention "set auto-connect-native-target", and "target native". * linux-nat.c (super_close): New global. (linux_nat_close): Call super_close. (linux_nat_add_target): Store a pointer to the base class's to_close method. * inf-ptrace.c (inf_ptrace_mourn_inferior, inf_ptrace_detach): Use inf_child_maybe_unpush. * inf-ttrace.c (inf_ttrace_him): Don't push the target if it is already pushed. (inf_ttrace_mourn_inferior): Only unpush the target after mourning the inferior. Use inf_child_maybe_unpush_target. (inf_ttrace_attach): Don't push the target if it is already pushed. (inf_ttrace_detach): Use inf_child_maybe_unpush_target. * darwin-nat.c (darwin_mourn_inferior): Only unpush the target after mourning the inferior. Use inf_child_maybe_unpush_target. (darwin_attach_pid): Don't push the target if it is already pushed. * gnu-nat.c (gnu_mourn_inferior): Only unpush the target after mourning the inferior. Use inf_child_maybe_unpush_target. (gnu_detach): Use inf_child_maybe_unpush_target. * go32-nat.c (go32_create_inferior): Don't push the target if it is already pushed. (go32_mourn_inferior): Use inf_child_maybe_unpush_target. * nto-procfs.c (procfs_is_nto_target): Adjust comment. (procfs_open): Rename to ... (procfs_open_1): ... this. Add target_ops parameter. Adjust comments. Can target_preopen before changing node. Call inf_child_open_target to push the target explicitly. (procfs_attach): Don't push the target if it is already pushed. (procfs_detach): Use inf_child_maybe_unpush_target. (procfs_create_inferior): Don't push the target if it is already pushed. (nto_native_ops): New global. (procfs_open): Reimplement. (procfs_native_open): New function. (init_procfs_targets): Install procfs_native_open as to_open of "target native". Store a pointer to the "native" target in nto_native_ops. * procfs.c (procfs_attach): Don't push the target if it is already pushed. (procfs_detach): Use inf_child_maybe_unpush_target. (procfs_mourn_inferior): Only unpush the target after mourning the inferior. Use inf_child_maybe_unpush_target. (procfs_init_inferior): Don't push the target if it is already pushed. * windows-nat.c (do_initial_windows_stuff): Don't push the target if it is already pushed. (windows_detach): Use inf_child_maybe_unpush_target. (windows_mourn_inferior): Only unpush the target after mourning the inferior. Use inf_child_maybe_unpush_target. gdb/doc/ 2014-05-21 Pedro Alves <palves@redhat.com> * gdb.texinfo (Starting): Document "set/show auto-connect-native-target". (Target Commands): Document "target native". gdb/testsuite/ 2014-05-21 Pedro Alves <palves@redhat.com> * boards/gdbserver-base.exp (GDBFLAGS): Set to "set auto-connect-native-target off". * gdb.base/auto-connect-native-target.c: New file. * gdb.base/auto-connect-native-target.exp: New file.
2014-05-21 19:30:47 +02:00
set auto-connect-native-target
Control whether GDB is allowed to automatically connect to the
native target for the run, attach, etc. commands when not connected
to any target yet. See also "target native" below.
set record btrace replay-memory-access (read-only|read-write)
show record btrace replay-memory-access
Control what memory accesses are allowed during replay.
enable target async by default; separate MI and target notions of async This finally makes background execution commands possible by default. However, in order to do that, there's one last thing we need to do -- we need to separate the MI and target notions of "async". Unlike the CLI, where the user explicitly requests foreground vs background execution in the execution command itself (c vs c&), MI chose to treat "set target-async" specially -- setting it changes the default behavior of execution commands. So, we can't simply "set target-async" default to on, as that would affect MI frontends. Instead we have to make the setting MI-specific, and teach MI about sync commands on top of an async target. Because the "target" word in "set target-async" ends up as a potential source of confusion, the patch adds a "set mi-async" option, and makes "set target-async" a deprecated alias. Rather than make the targets always async, this patch introduces a new "maint set target-async" option so that the GDB developer can control whether the target is async. This makes it simpler to debug issues arising only in the synchronous mode; important because sync mode seems unlikely to go away. Unlike in previous revisions, "set target-async" does not affect this new maint parameter. The rationale for this is that then one can easily run the test suite in the "maint set target-async off" mode and have tests that enable mi-async fail just like they fail on non-async-capable targets. This emulation is exactly the point of the maint option. I had asked Tom in a previous iteration to split the actual change of the target async default to a separate patch, but it turns out that that is quite awkward in this version of the patch, because with MI async and target async decoupled (unlike in previous versions), if we don't flip the default at the same time, then just "set target-async on" alone never actually manages to do anything. It's best to not have that transitory state in the tree. Given "set target-async on" now only has effect for MI, the patch goes through the testsuite removing it from non-MI tests. MI tests are adjusted to use the new and less confusing "mi-async" spelling. 2014-05-29 Pedro Alves <palves@redhat.com> Tom Tromey <tromey@redhat.com> * NEWS: Mention "maint set target-async", "set mi-async", and that background execution commands are now always available. * target.h (target_async_permitted): Update comment. * target.c (target_async_permitted, target_async_permitted_1): Default to 1. (set_target_async_command): Rename to ... (maint_set_target_async_command): ... this. (show_target_async_command): Rename to ... (maint_show_target_async_command): ... this. (_initialize_target): Adjust. * infcmd.c (prepare_execution_command): Make extern. * inferior.h (prepare_execution_command): Declare. * infrun.c (set_observer_mode): Leave target async alone. * mi/mi-interp.c (mi_interpreter_init): Install mi_on_sync_execution_done as sync_execution_done observer. (mi_on_sync_execution_done): New function. (mi_execute_command_input_handler): Don't print the prompt if we just started a synchronous command with an async target. (mi_on_resume): Check sync_execution before printing prompt. * mi/mi-main.h (mi_async_p): Declare. * mi/mi-main.c: Include gdbcmd.h. (mi_async_p): New function. (mi_async, mi_async_1): New globals. (set_mi_async_command, show_mi_async_command, mi_async): New functions. (exec_continue): Call prepare_execution_command. (run_one_inferior, mi_cmd_exec_run, mi_cmd_list_target_features) (mi_execute_async_cli_command): Use mi_async_p. (_initialize_mi_main): Install "set mi-async". Make "target-async" a deprecated alias. 2014-05-29 Pedro Alves <palves@redhat.com> Tom Tromey <tromey@redhat.com> * gdb.texinfo (Non-Stop Mode): Remove "set target-async 1" from example. (Asynchronous and non-stop modes): Document '-gdb-set mi-async'. Mention that target-async is now deprecated. (Maintenance Commands): Document maint set/show target-async. 2014-05-29 Pedro Alves <palves@redhat.com> Tom Tromey <tromey@redhat.com> * gdb.base/async-shell.exp: Don't enable target-async. * gdb.base/async.exp * gdb.base/corefile.exp (corefile_test_attach): Remove 'async' parameter. Adjust. (top level): Don't test with "target-async". * gdb.base/dprintf-non-stop.exp: Don't enable target-async. * gdb.base/gdb-sigterm.exp: Don't test with "target-async". * gdb.base/inferior-died.exp: Don't enable target-async. * gdb.base/interrupt-noterm.exp: Likewise. * gdb.mi/mi-async.exp: Use "mi-async" instead of "target-async". * gdb.mi/mi-nonstop-exit.exp: Likewise. * gdb.mi/mi-nonstop.exp: Likewise. * gdb.mi/mi-ns-stale-regcache.exp: Likewise. * gdb.mi/mi-nsintrall.exp: Likewise. * gdb.mi/mi-nsmoribund.exp: Likewise. * gdb.mi/mi-nsthrexec.exp: Likewise. * gdb.mi/mi-watch-nonstop.exp: Likewise. * gdb.multi/watchpoint-multi.exp: Adjust comment. * gdb.python/py-evsignal.exp: Don't enable target-async. * gdb.python/py-evthreads.exp: Likewise. * gdb.python/py-prompt.exp: Likewise. * gdb.reverse/break-precsave.exp: Don't test with "target-async". * gdb.server/solib-list.exp: Don't enable target-async. * gdb.threads/thread-specific-bp.exp: Likewise. * lib/mi-support.exp: Adjust to use mi-async.
2014-05-29 20:58:57 +02:00
maint set target-async (on|off)
maint show target-async
This controls whether GDB targets operate in synchronous or
asynchronous mode. Normally the default is asynchronous, if it is
enable target async by default; separate MI and target notions of async This finally makes background execution commands possible by default. However, in order to do that, there's one last thing we need to do -- we need to separate the MI and target notions of "async". Unlike the CLI, where the user explicitly requests foreground vs background execution in the execution command itself (c vs c&), MI chose to treat "set target-async" specially -- setting it changes the default behavior of execution commands. So, we can't simply "set target-async" default to on, as that would affect MI frontends. Instead we have to make the setting MI-specific, and teach MI about sync commands on top of an async target. Because the "target" word in "set target-async" ends up as a potential source of confusion, the patch adds a "set mi-async" option, and makes "set target-async" a deprecated alias. Rather than make the targets always async, this patch introduces a new "maint set target-async" option so that the GDB developer can control whether the target is async. This makes it simpler to debug issues arising only in the synchronous mode; important because sync mode seems unlikely to go away. Unlike in previous revisions, "set target-async" does not affect this new maint parameter. The rationale for this is that then one can easily run the test suite in the "maint set target-async off" mode and have tests that enable mi-async fail just like they fail on non-async-capable targets. This emulation is exactly the point of the maint option. I had asked Tom in a previous iteration to split the actual change of the target async default to a separate patch, but it turns out that that is quite awkward in this version of the patch, because with MI async and target async decoupled (unlike in previous versions), if we don't flip the default at the same time, then just "set target-async on" alone never actually manages to do anything. It's best to not have that transitory state in the tree. Given "set target-async on" now only has effect for MI, the patch goes through the testsuite removing it from non-MI tests. MI tests are adjusted to use the new and less confusing "mi-async" spelling. 2014-05-29 Pedro Alves <palves@redhat.com> Tom Tromey <tromey@redhat.com> * NEWS: Mention "maint set target-async", "set mi-async", and that background execution commands are now always available. * target.h (target_async_permitted): Update comment. * target.c (target_async_permitted, target_async_permitted_1): Default to 1. (set_target_async_command): Rename to ... (maint_set_target_async_command): ... this. (show_target_async_command): Rename to ... (maint_show_target_async_command): ... this. (_initialize_target): Adjust. * infcmd.c (prepare_execution_command): Make extern. * inferior.h (prepare_execution_command): Declare. * infrun.c (set_observer_mode): Leave target async alone. * mi/mi-interp.c (mi_interpreter_init): Install mi_on_sync_execution_done as sync_execution_done observer. (mi_on_sync_execution_done): New function. (mi_execute_command_input_handler): Don't print the prompt if we just started a synchronous command with an async target. (mi_on_resume): Check sync_execution before printing prompt. * mi/mi-main.h (mi_async_p): Declare. * mi/mi-main.c: Include gdbcmd.h. (mi_async_p): New function. (mi_async, mi_async_1): New globals. (set_mi_async_command, show_mi_async_command, mi_async): New functions. (exec_continue): Call prepare_execution_command. (run_one_inferior, mi_cmd_exec_run, mi_cmd_list_target_features) (mi_execute_async_cli_command): Use mi_async_p. (_initialize_mi_main): Install "set mi-async". Make "target-async" a deprecated alias. 2014-05-29 Pedro Alves <palves@redhat.com> Tom Tromey <tromey@redhat.com> * gdb.texinfo (Non-Stop Mode): Remove "set target-async 1" from example. (Asynchronous and non-stop modes): Document '-gdb-set mi-async'. Mention that target-async is now deprecated. (Maintenance Commands): Document maint set/show target-async. 2014-05-29 Pedro Alves <palves@redhat.com> Tom Tromey <tromey@redhat.com> * gdb.base/async-shell.exp: Don't enable target-async. * gdb.base/async.exp * gdb.base/corefile.exp (corefile_test_attach): Remove 'async' parameter. Adjust. (top level): Don't test with "target-async". * gdb.base/dprintf-non-stop.exp: Don't enable target-async. * gdb.base/gdb-sigterm.exp: Don't test with "target-async". * gdb.base/inferior-died.exp: Don't enable target-async. * gdb.base/interrupt-noterm.exp: Likewise. * gdb.mi/mi-async.exp: Use "mi-async" instead of "target-async". * gdb.mi/mi-nonstop-exit.exp: Likewise. * gdb.mi/mi-nonstop.exp: Likewise. * gdb.mi/mi-ns-stale-regcache.exp: Likewise. * gdb.mi/mi-nsintrall.exp: Likewise. * gdb.mi/mi-nsmoribund.exp: Likewise. * gdb.mi/mi-nsthrexec.exp: Likewise. * gdb.mi/mi-watch-nonstop.exp: Likewise. * gdb.multi/watchpoint-multi.exp: Adjust comment. * gdb.python/py-evsignal.exp: Don't enable target-async. * gdb.python/py-evthreads.exp: Likewise. * gdb.python/py-prompt.exp: Likewise. * gdb.reverse/break-precsave.exp: Don't test with "target-async". * gdb.server/solib-list.exp: Don't enable target-async. * gdb.threads/thread-specific-bp.exp: Likewise. * lib/mi-support.exp: Adjust to use mi-async.
2014-05-29 20:58:57 +02:00
available; but this can be changed to more easily debug problems
occurring only in synchronous mode.
enable target async by default; separate MI and target notions of async This finally makes background execution commands possible by default. However, in order to do that, there's one last thing we need to do -- we need to separate the MI and target notions of "async". Unlike the CLI, where the user explicitly requests foreground vs background execution in the execution command itself (c vs c&), MI chose to treat "set target-async" specially -- setting it changes the default behavior of execution commands. So, we can't simply "set target-async" default to on, as that would affect MI frontends. Instead we have to make the setting MI-specific, and teach MI about sync commands on top of an async target. Because the "target" word in "set target-async" ends up as a potential source of confusion, the patch adds a "set mi-async" option, and makes "set target-async" a deprecated alias. Rather than make the targets always async, this patch introduces a new "maint set target-async" option so that the GDB developer can control whether the target is async. This makes it simpler to debug issues arising only in the synchronous mode; important because sync mode seems unlikely to go away. Unlike in previous revisions, "set target-async" does not affect this new maint parameter. The rationale for this is that then one can easily run the test suite in the "maint set target-async off" mode and have tests that enable mi-async fail just like they fail on non-async-capable targets. This emulation is exactly the point of the maint option. I had asked Tom in a previous iteration to split the actual change of the target async default to a separate patch, but it turns out that that is quite awkward in this version of the patch, because with MI async and target async decoupled (unlike in previous versions), if we don't flip the default at the same time, then just "set target-async on" alone never actually manages to do anything. It's best to not have that transitory state in the tree. Given "set target-async on" now only has effect for MI, the patch goes through the testsuite removing it from non-MI tests. MI tests are adjusted to use the new and less confusing "mi-async" spelling. 2014-05-29 Pedro Alves <palves@redhat.com> Tom Tromey <tromey@redhat.com> * NEWS: Mention "maint set target-async", "set mi-async", and that background execution commands are now always available. * target.h (target_async_permitted): Update comment. * target.c (target_async_permitted, target_async_permitted_1): Default to 1. (set_target_async_command): Rename to ... (maint_set_target_async_command): ... this. (show_target_async_command): Rename to ... (maint_show_target_async_command): ... this. (_initialize_target): Adjust. * infcmd.c (prepare_execution_command): Make extern. * inferior.h (prepare_execution_command): Declare. * infrun.c (set_observer_mode): Leave target async alone. * mi/mi-interp.c (mi_interpreter_init): Install mi_on_sync_execution_done as sync_execution_done observer. (mi_on_sync_execution_done): New function. (mi_execute_command_input_handler): Don't print the prompt if we just started a synchronous command with an async target. (mi_on_resume): Check sync_execution before printing prompt. * mi/mi-main.h (mi_async_p): Declare. * mi/mi-main.c: Include gdbcmd.h. (mi_async_p): New function. (mi_async, mi_async_1): New globals. (set_mi_async_command, show_mi_async_command, mi_async): New functions. (exec_continue): Call prepare_execution_command. (run_one_inferior, mi_cmd_exec_run, mi_cmd_list_target_features) (mi_execute_async_cli_command): Use mi_async_p. (_initialize_mi_main): Install "set mi-async". Make "target-async" a deprecated alias. 2014-05-29 Pedro Alves <palves@redhat.com> Tom Tromey <tromey@redhat.com> * gdb.texinfo (Non-Stop Mode): Remove "set target-async 1" from example. (Asynchronous and non-stop modes): Document '-gdb-set mi-async'. Mention that target-async is now deprecated. (Maintenance Commands): Document maint set/show target-async. 2014-05-29 Pedro Alves <palves@redhat.com> Tom Tromey <tromey@redhat.com> * gdb.base/async-shell.exp: Don't enable target-async. * gdb.base/async.exp * gdb.base/corefile.exp (corefile_test_attach): Remove 'async' parameter. Adjust. (top level): Don't test with "target-async". * gdb.base/dprintf-non-stop.exp: Don't enable target-async. * gdb.base/gdb-sigterm.exp: Don't test with "target-async". * gdb.base/inferior-died.exp: Don't enable target-async. * gdb.base/interrupt-noterm.exp: Likewise. * gdb.mi/mi-async.exp: Use "mi-async" instead of "target-async". * gdb.mi/mi-nonstop-exit.exp: Likewise. * gdb.mi/mi-nonstop.exp: Likewise. * gdb.mi/mi-ns-stale-regcache.exp: Likewise. * gdb.mi/mi-nsintrall.exp: Likewise. * gdb.mi/mi-nsmoribund.exp: Likewise. * gdb.mi/mi-nsthrexec.exp: Likewise. * gdb.mi/mi-watch-nonstop.exp: Likewise. * gdb.multi/watchpoint-multi.exp: Adjust comment. * gdb.python/py-evsignal.exp: Don't enable target-async. * gdb.python/py-evthreads.exp: Likewise. * gdb.python/py-prompt.exp: Likewise. * gdb.reverse/break-precsave.exp: Don't test with "target-async". * gdb.server/solib-list.exp: Don't enable target-async. * gdb.threads/thread-specific-bp.exp: Likewise. * lib/mi-support.exp: Adjust to use mi-async.
2014-05-29 20:58:57 +02:00
set mi-async (on|off)
show mi-async
Control whether MI asynchronous mode is preferred. This supersedes
"set target-async" of previous GDB versions.
* "set target-async" is deprecated as a CLI option and is now an alias
for "set mi-async" (only puts MI into async mode).
* Background execution commands (e.g., "c&", "s&", etc.) are now
possible ``out of the box'' if the target supports them. Previously
the user would need to explicitly enable the possibility with the
"set target-async on" command.
New gdbserver option --debug-format=timestamp. * NEWS: Mention it. gdbserver/ * configure.ac (AC_CHECK_FUNCS): Add test for gettimeofday. * configure: Regenerate. * config.in: Regenerate. * Makefile.in (SFILES): Add debug.c. (OBS): Add debug.o. * debug.c: New file. * debug.h: New file. * linux-aarch64-low.c (*): Update all debugging printfs to use debug_printf instead of fprintf. * linux-arm-low.c (*): Ditto. * linux-cris-low.c (*): Ditto. * linux-crisv32-low.c (*): Ditto. * linux-m32r-low.c (*): Ditto. * linux-sparc-low.c (*): Ditto. * linux-x86.c (*): Ditto. * linux-low.c (*): Ditto. (linux_wait_1): Add calls to debug_enter, debug_exit. (linux_wait): Remove redundant debugging printf. (stop_all_lwps): Add calls to debug_enter, debug_exit. (linux_resume, unstop_all_lwps): Ditto. * mem-break.c (*): Update all debugging printfs to use debug_printf instead of fprintf. * remote-utils.c (*): Ditto. * thread-db.c (*): Ditto. * server.c #include <ctype.h>, "gdb_vecs.h". (debug_threads): Moved to debug.c. (*): Update all debugging printfs to use debug_printf instead of fprintf. (start_inferior): Replace call to fflush with call to debug_flush. (monitor_show_help): Mention set debug-format. (parse_debug_format_options): New function. (handle_monitor_command): Handle "monitor set debug-format". (gdbserver_usage): Mention --debug-format. (main): Parse --debug-format. * server.h (debug_threads): Declaration moved to debug.h. #include "debug.h". * tracepoint.c (trace_debug_1) [!IN_PROCESS_AGENT]: Add version of trace_debug_1 that uses debug_printf. (tracepoint_look_up_symbols): Update all debugging printfs to use debug_printf instead of fprintf. doc/ * gdb.texinfo (Server): Mention --debug-format=all|none|timestamp. (gdbserver man): Ditto. testsuite/ * gdb.server/server-mon.exp: Add tests for "set debug-format".
2014-01-22 23:17:39 +01:00
* New features in the GDB remote stub, GDBserver
** New option --debug-format=option1[,option2,...] allows one to add
additional text to each output. At present only timestamps
are supported: --debug-format=timestamps.
Timestamps can also be turned on with the
"monitor set debug-format timestamps" command from GDB.
* The 'record instruction-history' command now starts counting instructions
at one. This also affects the instruction ranges reported by the
'record function-call-history' command when given the /i modifier.
record-btrace: optionally indent function call history Add a new modifier /c to the "record function-call-history" command to indent the function name based on its depth in the call stack. Also reorder the optional fields to have the indentation at the very beginning. Prefix the insn range (/i modifier) with "inst ". Prefix the source line (/l modifier) with "at ". Change the range syntax from "begin-end" to "begin,end" to allow copy&paste to the "record instruction-history" and "list" commands. Adjust the respective tests and add new tests for the /c modifier. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * record.h (enum record_print_flag) <record_print_indent_calls>: New. * record.c (get_call_history_modifiers): Recognize /c modifier. (_initialize_record): Document /c modifier. * record-btrace.c (btrace_call_history): Add btinfo parameter. Reorder fields. Optionally indent the function name. Update all users. * NEWS: Announce changes. testsuite/ * gdb.btrace/function_call_history.exp: Fix expected field order for "record function-call-history". Add new tests for "record function-call-history /c". * gdb.btrace/exception.cc: New. * gdb.btrace/exception.exp: New. * gdb.btrace/tailcall.exp: New. * gdb.btrace/x86-tailcall.S: New. * gdb.btrace/x86-tailcall.c: New. * gdb.btrace/unknown_functions.c: New. * gdb.btrace/unknown_functions.exp: New. * gdb.btrace/Makefile.in (EXECUTABLES): Add new. doc/ * gdb.texinfo (Process Record and Replay): Document new /c modifier accepted by "record function-call-history". Add /i modifier to "record function-call-history" example.
2013-04-18 10:58:05 +02:00
* The command 'record function-call-history' supports a new modifier '/c' to
indent the function names based on their call stack depth.
The fields for the '/i' and '/l' modifier have been reordered.
The source line range is now prefixed with 'at'.
The instruction range is now prefixed with 'inst'.
Both ranges are now printed as '<from>, <to>' to allow copy&paste to the
"record instruction-history" and "list" commands.
* The ranges given as arguments to the 'record function-call-history' and
'record instruction-history' commands are now inclusive.
* The btrace record target now supports the 'record goto' command.
For locations inside the execution trace, the back trace is computed
based on the information stored in the execution trace.
record-btrace: add (reverse-)stepping support Provide to_resume and to_wait target methods for the btrace record target to allow reverse stepping and replay support. Replay is limited in the sense that only stepping and source correlation are supported. We do not record data and thus can not show variables. Non-stop mode is not working. Do not allow record-btrace in non-stop mode. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * btrace.h (btrace_thread_flag): New. (struct btrace_thread_info) <flags>: New. * record-btrace.c (record_btrace_resume_thread) (record_btrace_find_thread_to_move, btrace_step_no_history) (btrace_step_stopped, record_btrace_start_replaying) (record_btrace_step_thread, record_btrace_decr_pc_after_break) (record_btrace_find_resume_thread): New. (record_btrace_resume, record_btrace_wait): Extend. (record_btrace_can_execute_reverse): New. (record_btrace_open): Fail in non-stop mode. (record_btrace_set_replay): Split into this, ... (record_btrace_stop_replaying): ... this, ... (record_btrace_clear_histories): ... and this. (init_record_btrace_ops): Init to_can_execute_reverse. * NEWS: Announce it. testsuite/ * gdb.btrace/delta.exp: Check reverse stepi. * gdb.btrace/tailcall.exp: Update. Add stepping tests. * gdb.btrace/finish.exp: New. * gdb.btrace/next.exp: New. * gdb.btrace/nexti.exp: New. * gdb.btrace/record_goto.c: Add comments. * gdb.btrace/step.exp: New. * gdb.btrace/stepi.exp: New. * gdb.btrace/multi-thread-step.c: New. * gdb.btrace/multi-thread-step.exp: New. * gdb.btrace/rn-dl-bind.c: New. * gdb.btrace/rn-dl-bind.exp: New. * gdb.btrace/data.c: New. * gdb.btrace/data.exp: New. * gdb.btrace/Makefile.in (EXECUTABLES): Add new. doc/ * gdb.texinfo: Document limited reverse/replay support for target record-btrace.
2013-05-06 16:04:46 +02:00
* The btrace record target supports limited reverse execution and replay.
The target does not record data and therefore does not allow reading
memory or registers.
* The "catch syscall" command now works on s390*-linux* targets.
Make compare-sections work against all targets; add compare-sections [-r] tests. This does two things: 1. Adds a test. Recently compare-sections got a new "-r" switch, but given no test existed for compare-sections, the patch was allowed in with no testsuite addition. This now adds a test for both compare-sections and compare-sections -r. 2. Makes the compare-sections command work against all targets. Currently, compare-sections only works with remote targets, and only those that support the qCRC packet. The patch makes it so that if the target doesn't support accelerating memory verification, then GDB falls back to comparing memory itself. This is of course slower, but it's better than nothing, IMO. While testing against extended-remote GDBserver I noticed that we send the qCRC request to the target if we're connected, but not yet running a program. That can't work of course -- the patch fixes that. This all also goes in the direction of bridging the local/remote parity gap. I didn't decouple 1. from 2., because that would mean that the test would need to handle the case of the target not supporting the command. Tested on x86_64 Fedora 17, native, remote GDBserver, and extended-remote GDBserver. I also hack-disabled qCRC support to make sure the fallback paths in remote.c work. gdb/doc/ 2014-05-20 Pedro Alves <palves@redhat.com> * gdb.texinfo (Memory) <compare-sections>: Generalize comments to not be remote specific. Add cross reference to the qCRC packet. (Separate Debug Files): Update cross reference to the qCRC packet. (General Query Packets) <qCRC packet>: Add anchor. gdb/ 2014-05-20 Pedro Alves <palves@redhat.com> * NEWS: Mention that compare-sections now works with all targets. * remote.c (PACKET_qCRC): New enum value. (remote_verify_memory): Don't send qCRC if the target has no execution. Use packet_support/packet_ok. If the target doesn't support the qCRC packet, fallback to a deep memory copy. (compare_sections_command): Say "target image" instead of "remote executable". (_initialize_remote): Add PACKET_qCRC to the list of config packets that have no associated command. Extend comment. * target.c (simple_verify_memory, default_verify_memory): New function. * target.h (struct target_ops) <to_verify_memory>: Default to default_verify_memory. (simple_verify_memory): New declaration. * target-delegates.c: Regenerate. gdb/testsuite/ 2014-05-20 Pedro Alves <palves@redhat.com> * gdb.base/compare-sections.c: New file. * gdb.base/compare-sections.exp: New file.
2014-05-20 20:11:39 +02:00
* The "compare-sections" command is no longer specific to target
remote. It now works with all targets.
* All native targets are now consistently called "native".
Consequently, the "target child", "target GNU", "target djgpp",
"target procfs" (Solaris/Irix/OSF/AIX) and "target darwin-child"
commands have been replaced with "target native". The QNX/NTO port
leaves the "procfs" target in place and adds a "native" target for
consistency with other ports. The impact on users should be minimal
as these commands previously either throwed an error, or were
no-ops. The target's name is visible in the output of the following
commands: "help target", "info target", "info files", "maint print
target-stack".
Allow making GDB not automatically connect to the native target. Sometimes it's useful to be able to disable the automatic connection to the native target. E.g., sometimes GDB disconnects from the extended-remote target I was debugging, without me noticing it, and then I do "run". That starts the program locally, and only after a little head scratch session do I figure out the program is running locally instead of remotely as intended. Same thing with "attach", "info os", etc. With the patch, we now can have this instead: (gdb) set auto-connect-native-target off (gdb) target extended-remote :9999 ... *gdb disconnects* (gdb) run Don't know how to run. Try "help target". To still be able to connect to the native target with auto-connect-native-target set to off, I've made "target native" work instead of erroring out as today. Before: (gdb) target native Use the "run" command to start a native process. After: (gdb) target native Done. Use the "run" command to start a process. (gdb) maint print target-stack The current target stack is: - native (Native process) - exec (Local exec file) - None (None) (gdb) run Starting program: ./a.out ... I've also wanted this for the testsuite, when running against the native-extended-gdbserver.exp board (runs against gdbserver in extended-remote mode). With a non-native-target board, it's always a bug to launch a program with the native target. Turns out we still have one such case this patch catches: (gdb) break main Breakpoint 1 at 0x4009e5: file ../../../src/gdb/testsuite/gdb.base/coremaker.c, line 138. (gdb) run Don't know how to run. Try "help target". (gdb) FAIL: gdb.base/corefile.exp: run: with core On the patch itself, probably the least obvious bit is the need to go through all targets, and move the unpush_target call to after the generic_mourn_inferior call instead of before. This is what inf-ptrace.c does too, ever since multi-process support was added. The reason inf-ptrace.c does things in that order is that in the current multi-process/single-target model, we shouldn't unpush the target if there are still other live inferiors being debugged. The check for that is "have_inferiors ()" (a misnomer nowadays...), which does: have_inferiors (void) { for (inf = inferior_list; inf; inf = inf->next) if (inf->pid != 0) return 1; It's generic_mourn_inferior that ends up clearing inf->pid, so we need to call it before the have_inferiors check. To make all native targets behave the same WRT to explicit "target native", I've added an inf_child_maybe_unpush_target function that targets call instead of calling unpush_target directly, and as that includes the have_inferiors check, I needed to adjust the targets. Tested on x86_64 Fedora 20, native, and also with the extended-gdbserver board. Confirmed a cross build of djgpp gdb still builds. Smoke tested a cross build of Windows gdb under Wine. Untested otherwise. gdb/ 2014-05-21 Pedro Alves <palves@redhat.com> * inf-child.c (inf_child_ops, inf_child_explicitly_opened): New globals. (inf_child_open_target): New function. (inf_child_open): Use inf_child_open_target to push the target instead of erroring out. (inf_child_disconnect, inf_child_close) (inf_child_maybe_unpush_target): New functions. (inf_child_target): Install inf_child_disconnect and inf_child_close. Store a pointer to the returned object. * inf-child.h (inf_child_open_target, inf_child_maybe_unpush): New declarations. * target.c (auto_connect_native_target): New global. (show_default_run_target): New function. (find_default_run_target): Return NULL if automatically connecting to the native target is disabled. (_initialize_target): Install set/show auto-connect-native-target. * NEWS: Mention "set auto-connect-native-target", and "target native". * linux-nat.c (super_close): New global. (linux_nat_close): Call super_close. (linux_nat_add_target): Store a pointer to the base class's to_close method. * inf-ptrace.c (inf_ptrace_mourn_inferior, inf_ptrace_detach): Use inf_child_maybe_unpush. * inf-ttrace.c (inf_ttrace_him): Don't push the target if it is already pushed. (inf_ttrace_mourn_inferior): Only unpush the target after mourning the inferior. Use inf_child_maybe_unpush_target. (inf_ttrace_attach): Don't push the target if it is already pushed. (inf_ttrace_detach): Use inf_child_maybe_unpush_target. * darwin-nat.c (darwin_mourn_inferior): Only unpush the target after mourning the inferior. Use inf_child_maybe_unpush_target. (darwin_attach_pid): Don't push the target if it is already pushed. * gnu-nat.c (gnu_mourn_inferior): Only unpush the target after mourning the inferior. Use inf_child_maybe_unpush_target. (gnu_detach): Use inf_child_maybe_unpush_target. * go32-nat.c (go32_create_inferior): Don't push the target if it is already pushed. (go32_mourn_inferior): Use inf_child_maybe_unpush_target. * nto-procfs.c (procfs_is_nto_target): Adjust comment. (procfs_open): Rename to ... (procfs_open_1): ... this. Add target_ops parameter. Adjust comments. Can target_preopen before changing node. Call inf_child_open_target to push the target explicitly. (procfs_attach): Don't push the target if it is already pushed. (procfs_detach): Use inf_child_maybe_unpush_target. (procfs_create_inferior): Don't push the target if it is already pushed. (nto_native_ops): New global. (procfs_open): Reimplement. (procfs_native_open): New function. (init_procfs_targets): Install procfs_native_open as to_open of "target native". Store a pointer to the "native" target in nto_native_ops. * procfs.c (procfs_attach): Don't push the target if it is already pushed. (procfs_detach): Use inf_child_maybe_unpush_target. (procfs_mourn_inferior): Only unpush the target after mourning the inferior. Use inf_child_maybe_unpush_target. (procfs_init_inferior): Don't push the target if it is already pushed. * windows-nat.c (do_initial_windows_stuff): Don't push the target if it is already pushed. (windows_detach): Use inf_child_maybe_unpush_target. (windows_mourn_inferior): Only unpush the target after mourning the inferior. Use inf_child_maybe_unpush_target. gdb/doc/ 2014-05-21 Pedro Alves <palves@redhat.com> * gdb.texinfo (Starting): Document "set/show auto-connect-native-target". (Target Commands): Document "target native". gdb/testsuite/ 2014-05-21 Pedro Alves <palves@redhat.com> * boards/gdbserver-base.exp (GDBFLAGS): Set to "set auto-connect-native-target off". * gdb.base/auto-connect-native-target.c: New file. * gdb.base/auto-connect-native-target.exp: New file.
2014-05-21 19:30:47 +02:00
* The "target native" command now connects to the native target. This
can be used to launch native programs even when "set
auto-connect-native-target" is set to off.
Fix incorrect placement of two Intel gdb/NEWS items there were two commits which placed new gdb/NEWS items to the bottom of the NEWS file (such as for gdb-4.0) instead at their right place under: *** Changes in GDB 7.8 https://sourceware.org/git/?p=binutils-gdb.git;a=blobdiff;f=gdb/NEWS;h=ae84e009b8008f9da2707829c0cbab358abc17fb;hp=a8ae8c7b7a5ddce9b5779914dd1e6a87463d7d60;hb=ca8941bbd088002cb8ff87abe16d02ecc8d58d1e;hpb=489e41ddf4bb5616a7471fb4072df5efbb9a706e commit ca8941bbd088002cb8ff87abe16d02ecc8d58d1e Author: Walfred Tedeschi <walfred.tedeschi@intel.com> Date: Tue Dec 3 13:31:03 2013 +0000 Documentation for MPX. Message-Id: <1386074172-14177-1-git-send-email-walfred.tedeschi@intel.com> https://sourceware.org/ml/gdb-patches/2013-12/msg00082.html and https://sourceware.org/git/?p=binutils-gdb.git;a=blobdiff;f=gdb/NEWS;h=a7067fdf9a7af422572a29d1fdd6ef011c87cd9f;hp=b72d64db313d0785edec19a9c4b441b854698e6a;hb=01f9f808e2e86187c95e7cff4aeb014a421a53ce;hpb=93ee1e3683a12f4774b8beb4f821910982e21ce2 commit 01f9f808e2e86187c95e7cff4aeb014a421a53ce Author: Michael Sturm <michael.sturm@intel.com> Date: Mon Dec 16 16:43:05 2013 +0100 Add AVX512 registers support to GDB and GDBserver. Message-Id: <1398258160-9070-4-git-send-email-michael.sturm@intel.com> https://sourceware.org/ml/gdb-patches/2013-12/msg00818.html gdb/ 2014-08-04 Jan Kratochvil <jan.kratochvil@redhat.com> * NEWS (Changes in GDB-4.0): Move Intel MPX and Intel AVX-512 items ... (Changes in GDB 7.8): ... here. Message-ID: <20140804165708.GA12824@host2.jankratochvil.net>
2014-08-04 21:32:06 +02:00
* GDB now supports access to Intel(R) MPX registers on GNU/Linux.
* Support for Intel(R) AVX-512 registers on GNU/Linux.
Support displaying and modifying Intel(R) AVX-512 registers
$zmm0 - $zmm31 and $k0 - $k7 on GNU/Linux.
btrace, gdbserver: read branch trace incrementally Read branch trace data incrementally and extend the current trace rather than discarding it and reading the entire trace buffer each time. If the branch trace buffer overflowed, we can't extend the current trace so we discard it and start anew by reading the entire branch trace buffer. 2014-01-16 Markus Metzger <markus.t.metzger@intel.com> * common/linux-btrace.c (perf_event_read_bts, linux_read_btrace): Support delta reads. (linux_disable_btrace): Change return type. * common/linux-btrace.h (linux_read_btrace): Change parameters and return type to allow error reporting. Update users. (linux_disable_btrace): Change return type. Update users. * common/btrace-common.h (btrace_read_type) <BTRACE_READ_DELTA>: New. (btrace_error): New. (btrace_block) <begin>: Comment on BEGIN == 0. * btrace.c (btrace_compute_ftrace): Start from the end of the current trace. (btrace_stitch_trace, btrace_clear_history): New. (btrace_fetch): Read delta trace, return if replaying. (btrace_clear): Move clear history code to btrace_clear_history. (parse_xml_btrace): Throw an error if parsing failed. * target.h (struct target_ops) <to_read_btrace>: Change parameters and return type to allow error reporting. (target_read_btrace): Change parameters and return type to allow error reporting. * target.c (target_read_btrace): Update. * remote.c (remote_read_btrace): Support delta reads. Pass errors on. * NEWS: Announce it. gdbserver/ * target.h (target_ops) <read_btrace>: Change parameters and return type to allow error reporting. * server.c (handle_qxfer_btrace): Support delta reads. Pass trace reading errors on. * linux-low.c (linux_low_read_btrace): Pass trace reading errors on. (linux_low_disable_btrace): New.
2013-06-03 15:39:35 +02:00
* New remote packets
qXfer:btrace:read's annex
The qXfer:btrace:read packet supports a new annex 'delta' to read
branch trace incrementally.
* Python Scripting
** Valid Python operations on gdb.Value objects representing
structs/classes invoke the corresponding overloaded operators if
available.
** New `Xmethods' feature in the Python API. Xmethods are
additional methods or replacements for existing methods of a C++
class. This feature is useful for those cases where a method
defined in C++ source code could be inlined or optimized out by
the compiler, making it unavailable to GDB.
* New targets
PowerPC64 GNU/Linux little-endian powerpc64le-*-linux*
Deprecate windows-specific dll-symbols command and aliases The "dll-symbols" command, specific to native Windows platforms, gives the impression that the symbols were not loaded, first because it completes silently, and second because the "info shared" output does not get updated after the command completes: (gdb) dll-symbols C:\WINDOWS\syswow64\rpcrt4.dll (gdb) info shared From To Syms Read Shared Object Library [...] 0x77e51000 0x77ee2554 No C:\WINDOWS\system32\rpcrt4.dll (we exected the "Syms Read" column to read "Yes"). As far as I can tell, the symbols actually do get loaded, but completely independently from the solib framework, which explains the silent loading and the fact that the "Syms Read" column does not get updated. See windows-nat.c::safe_symbol_file_add_stub, which calls symbol_file_add instead of calling solib_add. But, aside from the fact that the "Syms Read" status does not get updated, I also noticed that it does not take into account the DLL's actual load address when loading its symbols. As a result, I believe that we get it wrong if the DLL does not get loaded at the prefered address. Rather than trying to fix this command, there does not seem to be a reason other than historical for having Windows-specific commands which essentially re-implements the "sharedlibrary" command. The command interface is slightly different (the latter takes a regexp rather than a plain filename), but it should be just as easy to use the "sharedlibrary" command, or its "share" alias, as usisng the "dll-symbols" command. For instance: (gdb) share rpcrt4.dll Reading symbols from C:\WINDOWS\system32\rpcrt4.dll...(no debugging symbols found)...done. Loaded symbols for C:\WINDOWS\system32\rpcrt4.dll (gdb) info shared From To Syms Read Shared Object Library [...] 0x77e51000 0x77ee2554 Yes (*) C:\WINDOWS\system32\rpcrt4.dll This patch therefore deprecates the "dll-symbols" command, as well as its two aliases "add-shared-symbol-files" and "assf", with a view of deleting them as soon as the 7.8 branch gets cut. gdb/ChangeLog: * windows-nat.c (_initialize_windows_nat): Deprecate the "dll-symbols" command. Turn the "add-shared-symbol-files" and "assf" aliases into commands, and deprecate them as well. * NEWS: Add entry explaining that "dll-symbols" and its two aliases are now deprecated. gdb/doc/ChangeLog: * gdb.texinfo (Files): Document "add-shared-symbol-files" and "assf" as being deprecated. (Cygwin Native): Likewise for "dll-symbols". (Non-debug DLL Symbols): Remove reference to "dll-symbols" as a way to force the loading of symbols from a DLL.
2014-01-31 10:22:53 +01:00
* The "dll-symbols" command, and its two aliases ("add-shared-symbol-files"
and "assf"), have been deprecated. Use the "sharedlibrary" command, or
its alias "share", instead.
* The commands "set remotebaud" and "show remotebaud" are no longer
supported. Use "set serial baud" and "show serial baud" (respectively)
instead.
enable target async by default; separate MI and target notions of async This finally makes background execution commands possible by default. However, in order to do that, there's one last thing we need to do -- we need to separate the MI and target notions of "async". Unlike the CLI, where the user explicitly requests foreground vs background execution in the execution command itself (c vs c&), MI chose to treat "set target-async" specially -- setting it changes the default behavior of execution commands. So, we can't simply "set target-async" default to on, as that would affect MI frontends. Instead we have to make the setting MI-specific, and teach MI about sync commands on top of an async target. Because the "target" word in "set target-async" ends up as a potential source of confusion, the patch adds a "set mi-async" option, and makes "set target-async" a deprecated alias. Rather than make the targets always async, this patch introduces a new "maint set target-async" option so that the GDB developer can control whether the target is async. This makes it simpler to debug issues arising only in the synchronous mode; important because sync mode seems unlikely to go away. Unlike in previous revisions, "set target-async" does not affect this new maint parameter. The rationale for this is that then one can easily run the test suite in the "maint set target-async off" mode and have tests that enable mi-async fail just like they fail on non-async-capable targets. This emulation is exactly the point of the maint option. I had asked Tom in a previous iteration to split the actual change of the target async default to a separate patch, but it turns out that that is quite awkward in this version of the patch, because with MI async and target async decoupled (unlike in previous versions), if we don't flip the default at the same time, then just "set target-async on" alone never actually manages to do anything. It's best to not have that transitory state in the tree. Given "set target-async on" now only has effect for MI, the patch goes through the testsuite removing it from non-MI tests. MI tests are adjusted to use the new and less confusing "mi-async" spelling. 2014-05-29 Pedro Alves <palves@redhat.com> Tom Tromey <tromey@redhat.com> * NEWS: Mention "maint set target-async", "set mi-async", and that background execution commands are now always available. * target.h (target_async_permitted): Update comment. * target.c (target_async_permitted, target_async_permitted_1): Default to 1. (set_target_async_command): Rename to ... (maint_set_target_async_command): ... this. (show_target_async_command): Rename to ... (maint_show_target_async_command): ... this. (_initialize_target): Adjust. * infcmd.c (prepare_execution_command): Make extern. * inferior.h (prepare_execution_command): Declare. * infrun.c (set_observer_mode): Leave target async alone. * mi/mi-interp.c (mi_interpreter_init): Install mi_on_sync_execution_done as sync_execution_done observer. (mi_on_sync_execution_done): New function. (mi_execute_command_input_handler): Don't print the prompt if we just started a synchronous command with an async target. (mi_on_resume): Check sync_execution before printing prompt. * mi/mi-main.h (mi_async_p): Declare. * mi/mi-main.c: Include gdbcmd.h. (mi_async_p): New function. (mi_async, mi_async_1): New globals. (set_mi_async_command, show_mi_async_command, mi_async): New functions. (exec_continue): Call prepare_execution_command. (run_one_inferior, mi_cmd_exec_run, mi_cmd_list_target_features) (mi_execute_async_cli_command): Use mi_async_p. (_initialize_mi_main): Install "set mi-async". Make "target-async" a deprecated alias. 2014-05-29 Pedro Alves <palves@redhat.com> Tom Tromey <tromey@redhat.com> * gdb.texinfo (Non-Stop Mode): Remove "set target-async 1" from example. (Asynchronous and non-stop modes): Document '-gdb-set mi-async'. Mention that target-async is now deprecated. (Maintenance Commands): Document maint set/show target-async. 2014-05-29 Pedro Alves <palves@redhat.com> Tom Tromey <tromey@redhat.com> * gdb.base/async-shell.exp: Don't enable target-async. * gdb.base/async.exp * gdb.base/corefile.exp (corefile_test_attach): Remove 'async' parameter. Adjust. (top level): Don't test with "target-async". * gdb.base/dprintf-non-stop.exp: Don't enable target-async. * gdb.base/gdb-sigterm.exp: Don't test with "target-async". * gdb.base/inferior-died.exp: Don't enable target-async. * gdb.base/interrupt-noterm.exp: Likewise. * gdb.mi/mi-async.exp: Use "mi-async" instead of "target-async". * gdb.mi/mi-nonstop-exit.exp: Likewise. * gdb.mi/mi-nonstop.exp: Likewise. * gdb.mi/mi-ns-stale-regcache.exp: Likewise. * gdb.mi/mi-nsintrall.exp: Likewise. * gdb.mi/mi-nsmoribund.exp: Likewise. * gdb.mi/mi-nsthrexec.exp: Likewise. * gdb.mi/mi-watch-nonstop.exp: Likewise. * gdb.multi/watchpoint-multi.exp: Adjust comment. * gdb.python/py-evsignal.exp: Don't enable target-async. * gdb.python/py-evthreads.exp: Likewise. * gdb.python/py-prompt.exp: Likewise. * gdb.reverse/break-precsave.exp: Don't test with "target-async". * gdb.server/solib-list.exp: Don't enable target-async. * gdb.threads/thread-specific-bp.exp: Likewise. * lib/mi-support.exp: Adjust to use mi-async.
2014-05-29 20:58:57 +02:00
* MI changes
** A new option "-gdb-set mi-async" replaces "-gdb-set
target-async". The latter is left as a deprecated alias of the
former for backward compatibility. If the target supports it,
CLI background execution commands are now always possible by
default, independently of whether the frontend stated a
preference for asynchronous execution with "-gdb-set mi-async".
Previously "-gdb-set target-async off" affected both MI execution
commands and CLI execution commands.
*** Changes in GDB 7.7
* Improved support for process record-replay and reverse debugging on
arm*-linux* targets. Support for thumb32 and syscall instruction
recording has been added.
* GDB now supports SystemTap SDT probes on AArch64 GNU/Linux.
Add support for DWP file format version 2. * NEWS: Mention support for DWP file format version 2. * dwarf2read.c (dwarf2_section_info): Convert asection field to a union of asection, containing_section. New fields virtual_offset and is_virtual. Change type of readin filed from int to char. (dwo_sections, dwo_file): Tweak comments. (dwp_v2_section_ids): New enum. (dwp_sections): New fields abbrev, info, line, loc, macinfo, macro, str_offsets, types. (virtual_v1_dwo_sections): Renamed from virtual_dwo_sections. All uses updated. (virtual_v2_dwo_sections): New struct. (dwp_hash_table): New fields version, nr_columns. Change type of section_pool field to a union. (dwp_file): New field version. (dwarf2_has_info): Check for virtual sections. (get_containing_section): New function. (get_section_bfd_owner, get_section_bfd_section): Call it. (dwarf2_locate_sections): Update. (dwarf2_section_empty_p): Update. (dwarf2_read_section): Handle virtual sections. (locate_dwz_sections): Update. (create_dwp_hash_table): Document and handle V2 format. (locate_v1_virtual_dwo_sections): Renamed from locate_virtual_dwo_sections and update. All callers updated. (create_dwo_unit_in_dwp_v1): Renamed from create_dwo_in_dwp. Delete arg htab. Rename arg section_index to unit_index. All callers updated. (MAX_NR_V1_DWO_SECTIONS): Renamed from MAX_NR_DWO_SECTIONS. All uses updated. (create_dwp_v2_section, create_dwo_unit_in_dwp_v2): New functions. (lookup_dwo_unit_in_dwp): Add V2 support. (dwarf2_locate_dwo_sections): Update. (dwarf2_locate_common_dwp_sections): Renamed from dwarf2_locate_dwp_sections and update. All callers updated. (dwarf2_locate_v2_dwp_sections): New function. (open_and_init_dwp_file): Add V2 support. (read_str_index): New locals str_section, str_offsets_section.
2013-10-05 03:44:17 +02:00
* GDB now supports Fission DWP file format version 2.
http://gcc.gnu.org/wiki/DebugFission
Based on the discussion at: <https://sourceware.org/ml/gdb-patches/2013-09/msg00301.html> <https://sourceware.org/ml/gdb-patches/2013-09/msg00383.html> This patch adds a new convenience function called $_isvoid, whose only purpose is to check whether an expression is void or not. This became necessary because the new convenience variable $_exitsignal (not yet approved) has a mutual exclusive behavior with $_exitcode, i.e., when one is "defined" (i.e., non-void), the other is cleared (i.e., becomes void). Doug wanted a way to identify which variable to use, and checking for voidness is the obvious solution. It is worth mentioning that my first attempt, after a conversation with Doug, was to actually implement a new $_isdefined() convenience function. I would do that (for convenience variables) by calling lookup_only_internalvar. However, I found a few problems: - Whenever I called $_isdefined ($variable), $variable became defined (with a void value), and $_isdefined always returned true. - Then, I tried to implement $_isdefined ("variable"), and do the "$" + "variable" inside GDB, thus making it impossible for GDB to create the convenience variable. However, it was hard to extract the string without having to mess with values and their idiossincrasies. Therefore, I decided to abandon this attempt (specially because I didn't want to spend too much time struggling with it). Anyway, after talking to Doug again we decided that it would be easier to implement $_isvoid, and this will probably help in cases like <http://stackoverflow.com/questions/3744554/testing-if-a-gdb-convenience-variable-is-defined>. I wrote a NEWS entry for it, and some new lines on the documentation. gdb/ 2013-09-16 Sergio Durigan Junior <sergiodj@redhat.com> * NEWS: Mention new convenience function $_isvoid. * value.c (isvoid_internal_fn): New function. (_initialize_values): Add new convenience function $_isvoid. gdb/doc/ 2013-09-16 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.texinfo (Convenience Functions): Mention new convenience function $_isvoid. gdb/testsuite/ 2013-09-16 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.base/gdbvars.c (foo_void): New function. (foo_int): Likewise. * gdb.base/gdbvars.exp (test_convenience_functions): New function. Call it.
2013-09-16 19:47:30 +02:00
* New convenience function "$_isvoid", to check whether an expression
is void. A void expression is an expression where the type of the
result is "void". For example, some convenience variables may be
"void" when evaluated (e.g., "$_exitcode" before the execution of
the program being debugged; or an undefined convenience variable).
Another example, when calling a function whose return type is
"void".
* The "maintenance print objfiles" command now takes an optional regexp.
* The "catch syscall" command now works on arm*-linux* targets.
Print registers not saved in the frame as "<not saved>" instead of "<optimized out>". Currently, in some scenarios, GDB prints <optimized out> when printing outer frame registers. An <optimized out> register is a confusing concept. What this really means is that the register is call-clobbered, or IOW, not saved by the callee. This patch makes GDB say that instead. Before patch: (gdb) p/x $rax $1 = <optimized out> (gdb) info registers rax rax <optimized out> After patch: (gdb) p/x $rax $1 = <not saved> (gdb) info registers rax rax <not saved> However, if for some reason the debug info describes a variable as being in such a register (**), we still want to print <optimized out> when printing the variable. IOW, <not saved> is reserved for inspecting registers at the machine level. The patch uses lval_register+optimized_out to encode the not saved registers, and makes it so that optimized out variables always end up in !lval_register values. ** See <https://sourceware.org/ml/gdb-patches/2012-08/msg00787.html>. Current/recent enough GCC doesn't mark variables/arguments as being in call-clobbered registers in the ranges corresponding to function calls, while older GCCs did. Newer GCCs will just not say where the variable is, so GDB will end up realizing the variable is optimized out. frame_unwind_got_optimized creates not_lval optimized out registers, so by default, in most cases, we'll see <optimized out>. value_of_register is the function eval.c uses for evaluating OP_REGISTER (again, $pc, etc.), and related bits. It isn't used for anything else. This function makes sure to return lval_register values. The patch makes "info registers" and the MI equivalent use it too. I think it just makes a lot of sense, as this makes it so that when printing machine registers ($pc, etc.), we go through a central function. We're likely to need a different encoding at some point, if/when we support partially saved registers. Even then, I think value_of_register will still be the spot to tag the intention to print machine register values differently. value_from_register however may also return optimized out lval_register values, so at a couple places where we're computing a variable's location from a dwarf expression, we convert the resulting value away from lval_register to a regular optimized out value. Tested on x86_64 Fedora 17 gdb/ 2013-10-02 Pedro Alves <palves@redhat.com> * cp-valprint.c (cp_print_value_fields): Adjust calls to val_print_optimized_out. * jv-valprint.c (java_print_value_fields): Likewise. * p-valprint.c (pascal_object_print_value_fields): Likewise. * dwarf2loc.c (dwarf2_evaluate_loc_desc_full) <DWARF_VALUE_REGISTER>: If the register was not saved, return a new optimized out value. * findvar.c (address_from_register): Likewise. * frame.c (put_frame_register): Tweak error string to say the register was not saved, rather than optimized out. * infcmd.c (default_print_one_register_info): Adjust call to val_print_optimized_out. Use value_of_register instead of get_frame_register_value. * mi/mi-main.c (output_register): Use value_of_register instead of get_frame_register_value. * valprint.c (valprint_check_validity): Likewise. (val_print_optimized_out): New value parameter. If the value is lval_register, print <not saved> instead. (value_check_printable, val_print_scalar_formatted): Adjust calls to val_print_optimized_out. * valprint.h (val_print_optimized_out): New value parameter. * value.c (struct value) <optimized_out>: Extend comment. (error_value_optimized_out): New function. (require_not_optimized_out): Use it. Use a different string for lval_register values. * value.h (error_value_optimized_out): New declaration. * NEWS: Mention <not saved>. gdb/testsuite/ 2013-10-02 Pedro Alves <palves@redhat.com> * gdb.dwarf2/dw2-reg-undefined.exp <pattern_rax_rbx_rcx_print, pattern_rax_rbx_rcx_info>: Set to "<not saved>". * gdb.mi/mi-reg-undefined.exp (opt_out_pattern): Delete. (not_saved_pattern): New. Replace use of the former with the latter. gdb/doc/ 2013-10-02 Pedro Alves <palves@redhat.com> * gdb.texinfo (Registers): Expand description of saved registers in frames. Explain <not saved>.
2013-10-02 18:15:46 +02:00
* GDB now consistently shows "<not saved>" when printing values of
registers the debug info indicates have not been saved in the frame
and there's nowhere to retrieve them from
(callee-saved/call-clobbered registers):
(gdb) p $rax
$1 = <not saved>
(gdb) info registers rax
rax <not saved>
Before, the former would print "<optimized out>", and the latter
"*value not available*".
* New script contrib/gdb-add-index.sh for adding .gdb_index sections
to binaries.
2013-05-10 Phil Muldoon <pmuldoon@redhat.com> * stack.c (backtrace_command_1): Add "no-filters", and Python frame filter logic. (backtrace_command): Add "no-filters" option parsing. (_initialize_stack): Alter help to reflect "no-filters" option. * Makefile.in (SUBDIR_PYTHON_OBS): Add py-framefilter.o (SUBDIR_PYTHON_SRCS): Add py-framefilter.c (py-frame.o): Add target * data-directory/Makefile.in (PYTHON_DIR): Add Python frame filter files. * python/python.h: Add new frame filter constants, and flag enum. (apply_frame_filter): Add definition. * python/python.c (apply_frame_filter): New non-Python enabled function. * python/py-utils.c (py_xdecref): New function. (make_cleanup_py_xdecref): Ditto. * python/py-objfile.c: Declare frame_filters dictionary. (objfpy_dealloc): Add frame_filters dealloc. (objfpy_new): Initialize frame_filters attribute. (objfile_to_objfile_object): Ditto. (objfpy_get_frame_filters): New function. (objfpy_set_frame_filters): New function. * python/py-progspace.c: Declare frame_filters dictionary. (pspy_dealloc): Add frame_filters dealloc. (pspy_new): Initialize frame_filters attribute. (pspacee_to_pspace_object): Ditto. (pspy_get_frame_filters): New function. (pspy_set_frame_filters): New function. * python/py-framefilter.c: New file. * python/lib/gdb/command/frame_filters.py: New file. * python/lib/gdb/frames.py: New file. * python/lib/gdb/__init__.py: Initialize global frame_filters dictionary * python/lib/gdb/FrameDecorator.py: New file. * python/lib/gdb/FrameIterator.py: New file. * mi/mi-cmds.c (mi_cmds): Add frame filters command. * mi/mi-cmds.h: Declare. * mi/mi-cmd-stack.c (mi_cmd_stack_list_frames): Add --no-frame-filter logic, and Python frame filter logic. (stack_enable_frame_filters): New function. (parse_no_frame_option): Ditto. (mi_cmd_stack_list_frames): Add --no-frame-filter and Python frame filter logic. (mi_cmd_stack_list_locals): Ditto. (mi_cmd_stack_list_args): Ditto. (mi_cmd_stack_list_variables): Ditto. * NEWS: Add frame filter note. 2013-05-10 Phil Muldoon <pmuldoon@redhat.com> * gdb.python/py-framefilter.py: New File. * gdb.python/py-framefilter-mi.exp: Ditto. * gdb.python/py-framefilter.c: Ditto. * gdb.python/py-framefilter-mi.exp: Ditto. * gdb.python/py-framefilter-mi.c: Ditto, * gdb.python/py-framefilter-gdb.py.in: Ditto. 2013-05-10 Phil Muldoon <pmuldoon@redhat.com> * gdb.texinfo (Backtrace): Add "no-filter" argument. (Python API): Add Frame Filters API, Frame Wrapper API, Writing a Frame Filter/Wrapper, Managing Management of Frame Filters chapter entries. (Frame Filters API): New Node. (Frame Wrapper API): New Node. (Writing a Frame Filter): New Node. (Managing Frame Filters): New Node. (Progspaces In Python): Add note about frame_filters attribute. (Objfiles in Python): Ditto. (GDB/MI Stack Manipulation): Add -enable-frame-filters command, @anchors and --no-frame-filters option to -stack-list-variables, -stack-list-frames, -stack-list-locals and -stack-list-arguments commands.
2013-05-10 12:26:03 +02:00
* Python scripting
** Frame filters and frame decorators have been added.
** Temporary breakpoints are now supported.
** Line tables representation has been added.
** New attribute 'parent_type' for gdb.Field objects.
** gdb.Field objects can be used as subscripts on gdb.Value objects.
** New attribute 'name' for gdb.Type objects.
2013-05-10 Phil Muldoon <pmuldoon@redhat.com> * stack.c (backtrace_command_1): Add "no-filters", and Python frame filter logic. (backtrace_command): Add "no-filters" option parsing. (_initialize_stack): Alter help to reflect "no-filters" option. * Makefile.in (SUBDIR_PYTHON_OBS): Add py-framefilter.o (SUBDIR_PYTHON_SRCS): Add py-framefilter.c (py-frame.o): Add target * data-directory/Makefile.in (PYTHON_DIR): Add Python frame filter files. * python/python.h: Add new frame filter constants, and flag enum. (apply_frame_filter): Add definition. * python/python.c (apply_frame_filter): New non-Python enabled function. * python/py-utils.c (py_xdecref): New function. (make_cleanup_py_xdecref): Ditto. * python/py-objfile.c: Declare frame_filters dictionary. (objfpy_dealloc): Add frame_filters dealloc. (objfpy_new): Initialize frame_filters attribute. (objfile_to_objfile_object): Ditto. (objfpy_get_frame_filters): New function. (objfpy_set_frame_filters): New function. * python/py-progspace.c: Declare frame_filters dictionary. (pspy_dealloc): Add frame_filters dealloc. (pspy_new): Initialize frame_filters attribute. (pspacee_to_pspace_object): Ditto. (pspy_get_frame_filters): New function. (pspy_set_frame_filters): New function. * python/py-framefilter.c: New file. * python/lib/gdb/command/frame_filters.py: New file. * python/lib/gdb/frames.py: New file. * python/lib/gdb/__init__.py: Initialize global frame_filters dictionary * python/lib/gdb/FrameDecorator.py: New file. * python/lib/gdb/FrameIterator.py: New file. * mi/mi-cmds.c (mi_cmds): Add frame filters command. * mi/mi-cmds.h: Declare. * mi/mi-cmd-stack.c (mi_cmd_stack_list_frames): Add --no-frame-filter logic, and Python frame filter logic. (stack_enable_frame_filters): New function. (parse_no_frame_option): Ditto. (mi_cmd_stack_list_frames): Add --no-frame-filter and Python frame filter logic. (mi_cmd_stack_list_locals): Ditto. (mi_cmd_stack_list_args): Ditto. (mi_cmd_stack_list_variables): Ditto. * NEWS: Add frame filter note. 2013-05-10 Phil Muldoon <pmuldoon@redhat.com> * gdb.python/py-framefilter.py: New File. * gdb.python/py-framefilter-mi.exp: Ditto. * gdb.python/py-framefilter.c: Ditto. * gdb.python/py-framefilter-mi.exp: Ditto. * gdb.python/py-framefilter-mi.c: Ditto, * gdb.python/py-framefilter-gdb.py.in: Ditto. 2013-05-10 Phil Muldoon <pmuldoon@redhat.com> * gdb.texinfo (Backtrace): Add "no-filter" argument. (Python API): Add Frame Filters API, Frame Wrapper API, Writing a Frame Filter/Wrapper, Managing Management of Frame Filters chapter entries. (Frame Filters API): New Node. (Frame Wrapper API): New Node. (Writing a Frame Filter): New Node. (Managing Frame Filters): New Node. (Progspaces In Python): Add note about frame_filters attribute. (Objfiles in Python): Ditto. (GDB/MI Stack Manipulation): Add -enable-frame-filters command, @anchors and --no-frame-filters option to -stack-list-variables, -stack-list-frames, -stack-list-locals and -stack-list-arguments commands.
2013-05-10 12:26:03 +02:00
* New targets
Nios II ELF nios2*-*-elf
Nios II GNU/Linux nios2*-*-linux
Texas Instruments MSP430 msp430*-*-elf
* Removed native configurations
Support for these a.out NetBSD and OpenBSD obsolete configurations has
been removed. ELF variants of these configurations are kept supported.
arm*-*-netbsd* but arm*-*-netbsdelf* is kept supported.
i[34567]86-*-netbsd* but i[34567]86-*-netbsdelf* is kept supported.
i[34567]86-*-openbsd[0-2].* but i[34567]86-*-openbsd* is kept supported.
i[34567]86-*-openbsd3.[0-3]
m68*-*-netbsd* but m68*-*-netbsdelf* is kept supported.
sparc-*-netbsd* but sparc-*-netbsdelf* is kept supported.
vax-*-netbsd* but vax-*-netbsdelf* is kept supported.
New commands "mt set per-command {space,time,symtab} {on,off}". * NEWS: Add entry. * event-top.c: #include "maint.h". * main.c: #include "maint.h". * maint.c: #include <sys/time.h>, <time.h>, block.h, top.h, timeval-utils.h, maint.h, cli/cli-setshow.h. (per_command_time, per_command_space): New static globals. (per_command_symtab): New static global. (per_command_setlist, per_command_showlist): New static globals. (struct cmd_stats): Move here from utils.c. (set_per_command_time): Renamed from set_display_time in utils.c and moved here. All callers updated. (set_per_command_space): Renamed from set_display_space in utils.c and moved here. All callers updated. (count_symtabs_and_blocks): New function. (report_command_stats): Moved here from utils.c. Add support for printing symtab stats. Only print data if enabled before command executed. (make_command_stats_cleanup): Ditto. (sert_per_command_cmd, show_per_command_cmd): New functions. (_initialize_maint_cmds): Add new commands mt set per-command {space,time,symtab} {on,off}. * maint.h: New file. * top.c: #include "maint.h". * utils.c (reset_prompt_for_continue_wait_time): New function. (get_prompt_for_continue_wait_time): New function. * utils.h (reset_prompt_for_continue_wait_time): Declare (get_prompt_for_continue_wait_time): Declare. (make_command_stats_cleanup): Moved to maint.h. (set_display_time, set_display_space): Moved to maint.h and renamed to set_per_command_time, set_per_command_space. * cli/cli-setshow.c (parse_cli_boolean_value): Renamed from parse_binary_operation and made non-static. Don't call error, just return an error marker. All callers updated. * cli/cli-setshow.h (parse_cli_boolean_value): Declare. doc/ * gdb.texinfo (Maintenance Commands): Add docs for "mt set per-command {space,time,symtab} {on,off}". testsuite/ * gdb.base/maint.exp: Update tests for per-command stats.
2013-03-21 18:37:30 +01:00
* New commands:
catch rethrow
Like "catch throw", but catches a re-thrown exception.
maint check-psymtabs
Renamed from old "maint check-symtabs".
maint check-symtabs
Perform consistency checks on symtabs.
maint expand-symtabs
Expand symtabs matching an optional regexp.
2013-04-12 10:57:43 +02:00
show configuration
Display the details of GDB configure-time options.
New commands "mt set per-command {space,time,symtab} {on,off}". * NEWS: Add entry. * event-top.c: #include "maint.h". * main.c: #include "maint.h". * maint.c: #include <sys/time.h>, <time.h>, block.h, top.h, timeval-utils.h, maint.h, cli/cli-setshow.h. (per_command_time, per_command_space): New static globals. (per_command_symtab): New static global. (per_command_setlist, per_command_showlist): New static globals. (struct cmd_stats): Move here from utils.c. (set_per_command_time): Renamed from set_display_time in utils.c and moved here. All callers updated. (set_per_command_space): Renamed from set_display_space in utils.c and moved here. All callers updated. (count_symtabs_and_blocks): New function. (report_command_stats): Moved here from utils.c. Add support for printing symtab stats. Only print data if enabled before command executed. (make_command_stats_cleanup): Ditto. (sert_per_command_cmd, show_per_command_cmd): New functions. (_initialize_maint_cmds): Add new commands mt set per-command {space,time,symtab} {on,off}. * maint.h: New file. * top.c: #include "maint.h". * utils.c (reset_prompt_for_continue_wait_time): New function. (get_prompt_for_continue_wait_time): New function. * utils.h (reset_prompt_for_continue_wait_time): Declare (get_prompt_for_continue_wait_time): Declare. (make_command_stats_cleanup): Moved to maint.h. (set_display_time, set_display_space): Moved to maint.h and renamed to set_per_command_time, set_per_command_space. * cli/cli-setshow.c (parse_cli_boolean_value): Renamed from parse_binary_operation and made non-static. Don't call error, just return an error marker. All callers updated. * cli/cli-setshow.h (parse_cli_boolean_value): Declare. doc/ * gdb.texinfo (Maintenance Commands): Add docs for "mt set per-command {space,time,symtab} {on,off}". testsuite/ * gdb.base/maint.exp: Update tests for per-command stats.
2013-03-21 18:37:30 +01:00
maint set|show per-command
maint set|show per-command space
maint set|show per-command time
maint set|show per-command symtab
Enable display of per-command gdb resource usage.
remove-symbol-file FILENAME
remove-symbol-file -a ADDRESS
Remove a symbol file added via add-symbol-file. The file to remove
can be identified by its filename or by an address that lies within
the boundaries of this symbol file in memory.
info exceptions
info exceptions REGEXP
Display the list of Ada exceptions defined in the program being
debugged. If provided, only the exceptions whose names match REGEXP
are listed.
* New options
set debug symfile off|on
show debug symfile
Control display of debugging info regarding reading symbol files and
symbol tables within those files
set print raw frame-arguments
show print raw frame-arguments
Set/show whether to print frame arguments in raw mode,
disregarding any defined pretty-printers.
set remote trace-status-packet
show remote trace-status-packet
Set/show the use of remote protocol qTStatus packet.
set debug nios2
show debug nios2
Control display of debugging messages related to Nios II targets.
range stepping: gdb This patch teaches GDB to take advantage of target-assisted range stepping. It adds a new 'r ADDR1,ADDR2' action to vCont (vCont;r), meaning, "step once, and keep stepping as long as the thread is in the [ADDR1,ADDR2) range". Rationale: When user issues the "step" command on the following line of source, a = b + c + d * e - a; GDB single-steps every single instruction until the program reaches a new different line. E.g., on x86_64, that line compiles to: 0x08048434 <+65>: mov 0x1c(%esp),%eax 0x08048438 <+69>: mov 0x30(%esp),%edx 0x0804843c <+73>: add %eax,%edx 0x0804843e <+75>: mov 0x18(%esp),%eax 0x08048442 <+79>: imul 0x2c(%esp),%eax 0x08048447 <+84>: add %edx,%eax 0x08048449 <+86>: sub 0x34(%esp),%eax 0x0804844d <+90>: mov %eax,0x34(%esp) 0x08048451 <+94>: mov 0x1c(%esp),%eax and the following is the RSP traffic between GDB and GDBserver: --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:3c840408;thread:p2e13.2e13;core:1; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:3e840408;thread:p2e13.2e13;core:2; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:42840408;thread:p2e13.2e13;core:2; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:47840408;thread:p2e13.2e13;core:0; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:49840408;thread:p2e13.2e13;core:0; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:4d840408;thread:p2e13.2e13;core:0; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:51840408;thread:p2e13.2e13;core:0; IOW, a lot of roundtrips between GDB and GDBserver. If we add a new command to the RSP, meaning "keep stepping and don't report a stop until the program goes out of the [0x08048434, 0x08048451) address range", then the RSP traffic can be reduced down to: --> vCont;r8048434,8048451:p2db0.2db0;c <-- T0505:68efffbf;04:30efffbf;08:51840408;thread:p2db0.2db0;core:1; As number of packets is reduced dramatically, the performance of stepping source lines is much improved. In case something is wrong with range stepping on the stub side, the debug info or even gdb, this adds a "set/show range-stepping" command to be able to turn range stepping off. gdb/ 2013-05-23 Yao Qi <yao@codesourcery.com> Pedro Alves <palves@redhat.com> * gdbthread.h (struct thread_control_state) <may_range_step>: New field. * infcmd.c (step_once, until_next_command): Enable range stepping. * infrun.c (displaced_step_prepare): Disable range stepping. (resume): Disable range stepping if stepping over a breakpoint or we have software watchpoints. If range stepping is enabled, assert the thread is in the stepping range. (clear_proceed_status_thread): Clear may_range_step. (handle_inferior_event): Disable range stepping as soon as we know the thread that hit the event. Re-enable it whenever we're going to step with a step range. * remote.c (struct vCont_action_support) <r>: New field. (use_range_stepping): New global. (remote_vcont_probe): Handle 'r' action. (append_resumption): Append an 'r' action if the thread may range step. (show_range_stepping): New function. (set_range_stepping): New function. (_initialize_remote): Call add_setshow_boolean_cmd to register the 'set range-stepping' and 'show range-stepping' commands. * NEWS: Mention range stepping, the new vCont;r action, and the new "set/show range-stepping" commands. gdb/doc/ 2013-05-23 Yao Qi <yao@codesourcery.com> Pedro Alves <palves@redhat.com> * gdb.texinfo (Packets): Document 'vCont;r'. (Continuing and Stepping): Document target-assisted range stepping, and the 'set range-stepping' and 'show range-stepping' commands.
2013-05-23 19:15:35 +02:00
set range-stepping
show range-stepping
Control whether target-assisted range stepping is enabled.
Make STARTUP_WITH_SHELL a runtime toggle -- add new "set/show startup-with-shell" option. Occasionaly we hear about people having problems with GDB not being able to start programs (with "run"/"start"). GDB spawns a shell to start the program, and most often, it'll be the case that the problem is actually with the user's shell setup. GDB has code to disable the use of the shell to start programs. That's the STARTUP_WITH_SHELL macro that native targets could set to 0 in their nm.h file (though no target actually uses it nowadays). This patch makes that setting a run-time knob instead. This will be useful to quickly diagnose such shell issues, and might also come in handy at other times (such as when debugging the shell itself, if you don't have a different shell handy). gdb/ 2013-10-24 Pedro Alves <palves@redhat.com> * NEWS (New options): Mention set/show startup-with-shell. * config/alpha/nm-osf3.h (START_INFERIOR_TRAPS_EXPECTED): Set to 2 instead of 3. * fork-child.c (fork_inferior, startup_inferior): Handle 'set startup-with-shell'. (show_startup_with_shell): New function. (_initialize_fork_child): Register the set/show startup-with-shell commands. * inf-ptrace.c (inf_ptrace_create_inferior): Remove comment. * inf-ttrace.c (inf_ttrace_him): Remove comment. * procfs.c (procfs_init_inferior): Remove comment. * infcmd.c (startup_with_shell): New global. * inferior.h (startup_with_shell): Declare global. (STARTUP_WITH_SHELL): Delete. (START_INFERIOR_TRAPS_EXPECTED): Set to 1 by default instead of 2. gdb/doc/ 2013-10-24 Pedro Alves <palves@redhat.com> * gdb.texinfo (Starting): Document set/show startup-with-shell.
2013-10-24 17:10:05 +02:00
set startup-with-shell
show startup-with-shell
Specifies whether Unix child processes are started via a shell or
directly.
set code-cache
show code-cache
Use the target memory cache for accesses to the code segment. This
improves performance of remote debugging (particularly disassembly).
* You can now use a literal value 'unlimited' for options that
interpret 0 or -1 as meaning "unlimited". E.g., "set
trace-buffer-size unlimited" is now an alias for "set
trace-buffer-size -1" and "set height unlimited" is now an alias for
"set height 0".
* The "set debug symtab-create" debugging option of GDB has been changed to
accept a verbosity level. 0 means "off", 1 provides basic debugging
output, and values of 2 or greater provides more verbose output.
2013-04-12 10:57:43 +02:00
* New command-line options
--configuration
Display the details of GDB configure-time options.
* The command 'tsave' can now support new option '-ctf' to save trace
buffer in Common Trace Format.
* Newly installed $prefix/bin/gcore acts as a shell interface for the
GDB command gcore.
* GDB now implements the the C++ 'typeid' operator.
* The new convenience variable $_exception holds the exception being
thrown or caught at an exception-related catchpoint.
* The exception-related catchpoints, like "catch throw", now accept a
regular expression which can be used to filter exceptions by type.
This patch adds a new convenience variable called "$_exitsignal", which will hold the signal number when the inferior terminates due to the uncaught signal. I've made modifications on infrun.c:handle_inferior_event such that $_exitcode gets cleared when the inferior signalled, and vice-versa. This assumption was made because the variables are mutually exclusive, i.e., when the inferior terminates because of an uncaught signal it is not possible for it to return. I have also made modifications such that when a corefile is loaded, $_exitsignal gets set to the uncaught signal that "killed" the inferior, and $_exitcode is cleared. The patch also adds a NEWS entry, documentation bits, and a testcase. The documentation entry explains how to use $_exitsignal and $_exitcode in a GDB script, by making use of the new $_isvoid convenience function. gdb/ 2013-10-06 Sergio Durigan Junior <sergiodj@redhat.com> * NEWS: Mention new convenience variable $_exitsignal. * corelow.c (core_open): Reset exit convenience variables. Set $_exitsignal to the uncaught signal which generated the corefile. * infrun.c (handle_inferior_event): Reset exit convenience variables. Set $_exitsignal for TARGET_WAITKIND_SIGNALLED. (clear_exit_convenience_vars): New function. * inferior.h (clear_exit_convenience_vars): New prototype. gdb/testsuite/ 2013-10-06 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.base/corefile.exp: Test whether $_exitsignal is set and $_exitcode is void when opening a corefile. * gdb.base/exitsignal.exp: New file. * gdb.base/segv.c: Likewise. * gdb.base/normal.c: Likewise. gdb/doc/ 2013-10-06 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.texinfo (Convenience Variables): Document $_exitsignal. Update entry for $_exitcode.
2013-10-07 07:34:11 +02:00
* The new convenience variable $_exitsignal is automatically set to
the terminating signal number when the program being debugged dies
due to an uncaught signal.
* MI changes
GDB/MI: Add new "--language LANG" command option. Frontend sometimes need to evaluate expressions that are language-specific. For instance, Eclipse uses the following expression to determine the size of an address on the target: -data-evaluate-expression "sizeof (void*)" Unfortunately, if the main of the program being debugged is not C, this may not work. For instance, if the main is in Ada, you get... -data-evaluate-expression "sizeof (void*)" ^error,msg="No definition of \"sizeof\" in current context." ... and apparently decides to stop the debugging session as a result. The recommendation sent was to specifically set the language to C before trying to evaluate the expression. Something such as: 1. save current language 2. set language c 3. -data-evaluate-expression "sizeof (void*)" 4. Restore language This has the same disadvantages as the ones outlined in the "Context Management" section of the GDB/MI documentation regarding setting the current thread or the current frame, thus recommending the use of general command-line switches such as --frame, or --thread instead. This patch follows the same steps for the language, adding a similar new command option: --language LANG. Example of use: -data-evaluate-expression --language c "sizeof (void*)" ^done,value="4" gdb/ChangeLog: * mi/mi-parse.h (struct mi_parse) <language>: New field. * mi/mi-main.c (mi_cmd_execute): Temporarily set language to PARSE->LANGUAGE during command execution, if set. * mi/mi-parse.c: Add "language.h" #include. (mi_parse): Add parsing of "--language" command option. * NEWS: Add entry mentioning the new "--language" command option. gdb/testsuite/ChangeLog: * gdb.mi/mi-language.exp: New file. gdb/doc/ChangeLog: * gdb.texinfo (Show): Add xref anchor for "show language" command. (Context management): Place current subsection text into its own subsubsection. Add new subsubsection describing the "--language" command option.
2013-11-11 06:21:44 +01:00
** All MI commands now accept an optional "--language" option.
Support for this feature can be verified by using the "-list-features"
command, which should contain "language-option".
GDB/MI: Add new "--language LANG" command option. Frontend sometimes need to evaluate expressions that are language-specific. For instance, Eclipse uses the following expression to determine the size of an address on the target: -data-evaluate-expression "sizeof (void*)" Unfortunately, if the main of the program being debugged is not C, this may not work. For instance, if the main is in Ada, you get... -data-evaluate-expression "sizeof (void*)" ^error,msg="No definition of \"sizeof\" in current context." ... and apparently decides to stop the debugging session as a result. The recommendation sent was to specifically set the language to C before trying to evaluate the expression. Something such as: 1. save current language 2. set language c 3. -data-evaluate-expression "sizeof (void*)" 4. Restore language This has the same disadvantages as the ones outlined in the "Context Management" section of the GDB/MI documentation regarding setting the current thread or the current frame, thus recommending the use of general command-line switches such as --frame, or --thread instead. This patch follows the same steps for the language, adding a similar new command option: --language LANG. Example of use: -data-evaluate-expression --language c "sizeof (void*)" ^done,value="4" gdb/ChangeLog: * mi/mi-parse.h (struct mi_parse) <language>: New field. * mi/mi-main.c (mi_cmd_execute): Temporarily set language to PARSE->LANGUAGE during command execution, if set. * mi/mi-parse.c: Add "language.h" #include. (mi_parse): Add parsing of "--language" command option. * NEWS: Add entry mentioning the new "--language" command option. gdb/testsuite/ChangeLog: * gdb.mi/mi-language.exp: New file. gdb/doc/ChangeLog: * gdb.texinfo (Show): Add xref anchor for "show language" command. (Context management): Place current subsection text into its own subsubsection. Add new subsubsection describing the "--language" command option.
2013-11-11 06:21:44 +01:00
New GDB/MI command "-info-gdb-mi-command" This patch adds a new GDB/MI command meant for graphical frontends trying to determine whether a given GDB/MI command exists or not. Examples: -info-gdb-mi-command unsupported-command ^done,command={exists="false"} (gdb) -info-gdb-mi-command symbol-list-lines ^done,command={exists="true"} (gdb) At the moment, this is the only piece of information that this command returns. Eventually, and if needed, we can extend it to provide command-specific pieces of information, such as updates to the command's syntax since inception. This could become, for instance: -info-gdb-mi-command symbol-list-lines ^done,command={exists="true",features=[]} (gdb) -info-gdb-mi-command catch-assert ^done,command={exists="true",features=["conditions"]} In the first case, it would mean that no extra features, while in the second, it announces that the -catch-assert command in this version of the debugger supports a feature called "condition" - exact semantics to be documented with combined with the rest of the queried command's documentation. But for now, we start small, and only worry about existance. And to bootstrap the process, I have added an entry in the output of the -list-features command as well ("info-gdb-mi-command"), allowing the graphical frontends to go through the following process: 1. Send -list-features, collect info from there as before; 2. Check if the output contains "info-gdb-mi-command". If it does, then support for various commands can be queried though -info-gdb-mi-command. Newer commands will be expected to always be checked via this new -info-gdb-mi-command. gdb/ChangeLog: * mi/mi-cmds.h (mi_cmd_info_gdb_mi_command): Declare. * mi/mi-cmd-info.c (mi_cmd_info_gdb_mi_command): New function. * mi/mi-cmds.c (mi_cmds): Add -info-gdb-mi-command command. * mi/mi-main.c (mi_cmd_list_features): Add "info-gdb-mi-command" field to output of "-list-features". * NEWS: Add entry for new -info-gdb-mi-command. gdb/doc/ChangeLog: * gdb.texinfo (GDB/MI Miscellaneous Commands): Document the new -info-gdb-mi-command GDB/MI command. Document the meaning of "-info-gdb-mi-command" in the output of -list-features. gdb/testsuite/ChangeLog: * gdb.mi/mi-i-cmd.exp: New file.
2013-11-12 11:51:30 +01:00
** The new command -info-gdb-mi-command allows the user to determine
whether a GDB/MI command is supported or not.
Add "undefined-command" error code at end of ^error result... ... when trying to execute an undefined GDB/MI command. When trying to execute a GDB/MI command which does not exist, the current error result record looks like this: -unsupported ^error,msg="Undefined MI command: unsupported" The only indication that the command does not exist is the error message. It would be a little fragile for a consumer to rely solely on the contents of the error message in order to determine whether a command exists or not. This patch improves the situation by adding concept of error code, starting with one well-defined error code ("undefined-command") identifying errors due to a non-existant command. Here is the new output: -unsupported ^error,msg="Undefined MI command: unsupported",code="undefined-command" This error code is only displayed when the corresponding error condition is met. Otherwise, the error record remains unchanged. For instance: -symbol-list-lines foo.adb ^error,msg="-symbol-list-lines: Unknown source file name." For frontends to be able to know whether they can rely on this variable, a new entry "undefined-command-error-code" has been added to the "-list-features" command. Another option would be to always generate an error="..." variable (for the default case, we could decide for instance that the error code is the empty string). But it seems more efficient to provide that info in "-list-features" and then only add the error code when meaningful. gdb/ChangeLog: (from Pedro Alves <palves@redhat.com>) (from Joel Brobecker <brobecker@adacore.com>) * exceptions.h (enum_errors) <UNDEFINED_COMMAND_ERROR>: New enum. * mi/mi-parse.c (mi_parse): Throw UNDEFINED_COMMAND_ERROR instead of a regular error when the GDB/MI command does not exist. * mi/mi-main.c (mi_cmd_list_features): Add "undefined-command-error-code". (mi_print_exception): Print an "undefined-command" error code if EXCEPTION.ERROR is UNDEFINED_COMMAND_ERROR. * NEWS: Add entry documenting the new "code" variable in "^error" result records. gdb/doc/ChangeLog: * gdb.texinfo (GDB/MI Result Records): Fix the syntax of the "^error" result record concerning the error message. Document the error code that may also be part of that result record. (GDB/MI Miscellaneous Commands): Document the "undefined-command-error-code" element in the output of the "-list-features" GDB/MI command. gdb/testsuite/ChangeLog: * gdb.mi/mi-undefined-cmd.exp: New testcase.
2013-11-18 13:55:16 +01:00
** The "^error" result record returned when trying to execute an undefined
GDB/MI command now provides a variable named "code" whose content is the
"undefined-command" error code. Support for this feature can be verified
by using the "-list-features" command, which should contain
"undefined-command-error-code".
** The -trace-save MI command can optionally save trace buffer in Common
Trace Format now.
** The new command -dprintf-insert sets a dynamic printf breakpoint.
2013-06-20 02:39:11 +02:00
** The command -data-list-register-values now accepts an optional
"--skip-unavailable" option. When used, only the available registers
are displayed.
gdb/ 2013-06-26 Pedro Alves <pedro@codesourcery.com> Yao Qi <yao@codesourcery.com> * gdb.texinfo (GDB/MI Tracepoint Commands): Document -trace-frame-collected. gdb: 2013-06-26 Pedro Alves <pedro@codesourcery.com> Yao Qi <yao@codesourcery.com> * mi/mi-cmds.c (mi_cmds): Register -trace-frame-collected. * mi/mi-cmds.h (mi_cmd_trace_frame_collected): Declare. * mi/mi-main.c (print_variable_or_computed): New function. (mi_cmd_trace_frame_collected): New function. * tracepoint.c (find_trace_state_variable_by_number): New. (struct traceframe_info): Move to tracepoint.h (struct collection_list): Likewise. (do_collect_symbol): Include locals and arguments in the wholly collected variables list. (clear_collection_list): Clear wholly collected variables list and computed variables list. (append_exp): New function. (encode_actions_1): Include variables in the wholly collected variables list. Include memory ranges and full-fledged expressions in the computed expressions list. (encode_actions): Move some code to ... Return the cleanup chain. (encode_actions_rsp): ... here. New function. (get_traceframe_location, get_traceframe_info): Remove static. * tracepoint.h (struct memrange): Moved from tracepoint.c. (struct collection_list): Moved from tracepoint.c. Add two new fields 'wholly_collected' and 'computed'. (find_trace_state_variable_by_number): Declare. (encode_actions): Adjust declaration. (encode_actions_rsp): Declare. (get_traceframe_info, get_traceframe_location): Declare. * NEWS: Mention new MI command -trace-frame-collected.
2013-06-26 10:17:27 +02:00
** The new command -trace-frame-collected dumps collected variables,
computed expressions, tvars, memory and registers in a traceframe.
Add options to skip unavailable locals This is the patch to add new option '--skip-unavailable' to MI commands '-stack-list-{locals, arguments, variables}'. This patch extends list_args_or_locals to add a new parameter 'skip_unavailable', and don't list locals or arguments if values are unavailable and 'skip_unavailable' is true. This is inspecting a trace frame (tfind mode), where only a few locals have been collected. -stack-list-locals, no switch vs new switch: -stack-list-locals --simple-values ^done,locals=[{name="array",type="unsigned char [2]"},{name="i",type="int",value="<unavailable>"}] -stack-list-locals --skip-unavailable --simple-values ^done,locals=[{name="array",type="unsigned char [2]"}] -stack-list-arguments, no switch vs new switch: -stack-list-arguments --simple-values ^done,stack-args=[frame={level="0",args=[{name="j",type="int",value="4"},{name="s",type="char *",value="<unavailable>"}]},frame={level="1",args=[]}] -stack-list-arguments --skip-unavailable --simple-values ^done,stack-args=[frame={level="0",args=[{name="j",type="int",value="4"}]},frame={level="1",args=[]}] -stack-list-variables, no switch vs new switch: -stack-list-variables --simple-values ^done,variables=[{name="j",arg="1",type="int",value="4"},{name="s",arg="1",type="char *",value="<unavailable>"},{name="array",type="unsigned char [2]"},{name="i",type="int",value="<unavailable>"}] -stack-list-variables --skip-unavailable --simple-values ^done,variables=[{name="j",arg="1",type="int",value="4"},{name="array",type="unsigned char [2]"}] tests are added to test these new options. gdb: 2013-08-27 Pedro Alves <pedro@codesourcery.com> Yao Qi <yao@codesourcery.com> * mi/mi-cmd-stack.c (list_args_or_locals): Adjust prototype. (parse_no_frames_option): Remove. (mi_cmd_stack_list_locals): Handle --skip-unavailable. (mi_cmd_stack_list_args): Adjust. (mi_cmd_stack_list_variables): Handle --skip-unavailable. (list_arg_or_local): Add new parameter 'skip_unavailable'. Return early if SKIP_UNAVAILABLE is true and ARG->val is unavailable. Caller update. (list_args_or_locals): New parameter 'skip_unavailable'. Handle it. * valprint.c (scalar_type_p): Rename to ... (val_print_scalar_type_p): ... this. Make extern. (val_print, value_check_printable): Adjust. * valprint.h (val_print_scalar_type_p): Declare. * value.c (value_entirely_unavailable): New function. * value.h (value_entirely_unavailable): Declare. * NEWS: Mention the new option "--skip-unavailable" to MI commands '-stack-list-locals', '-stack-list-arguments' and '-stack-list-variables'. gdb/doc: 2013-08-27 Pedro Alves <pedro@codesourcery.com> Yao Qi <yao@codesourcery.com> * gdb.texinfo (GDB/MI Stack Manipulation) <-stack-list-locals>: Document new --skip-unavailable option. <-stack-list-variables>: Document new --skip-unavailable option. gdb/testsuite: 2013-08-27 Yao Qi <yao@codesourcery.com> * gdb.trace/entry-values.exp: Test unavailable entry value is not shown when option '--skip-unavailable' is specified. * gdb.trace/mi-trace-unavailable.exp (test_trace_unavailable): Add tests for new option '--skip-unavailable'.
2013-08-27 07:20:57 +02:00
** The commands -stack-list-locals, -stack-list-arguments and
-stack-list-variables now accept an option "--skip-unavailable".
When used, only the available locals or arguments are displayed.
** The -exec-run command now accepts an optional "--start" option.
When used, the command follows the same semantics as the "start"
command, stopping the program's execution at the start of its
main subprogram. Support for this feature can be verified using
the "-list-features" command, which should contain
"exec-run-start-option".
** The new commands -catch-assert and -catch-exceptions insert
catchpoints stopping the program when Ada exceptions are raised.
** The new command -info-ada-exceptions provides the equivalent of
the new "info exceptions" command.
* New system-wide configuration scripts
A GDB installation now provides scripts suitable for use as system-wide
configuration scripts for the following systems:
** ElinOS
** Wind River Linux
range stepping: gdb This patch teaches GDB to take advantage of target-assisted range stepping. It adds a new 'r ADDR1,ADDR2' action to vCont (vCont;r), meaning, "step once, and keep stepping as long as the thread is in the [ADDR1,ADDR2) range". Rationale: When user issues the "step" command on the following line of source, a = b + c + d * e - a; GDB single-steps every single instruction until the program reaches a new different line. E.g., on x86_64, that line compiles to: 0x08048434 <+65>: mov 0x1c(%esp),%eax 0x08048438 <+69>: mov 0x30(%esp),%edx 0x0804843c <+73>: add %eax,%edx 0x0804843e <+75>: mov 0x18(%esp),%eax 0x08048442 <+79>: imul 0x2c(%esp),%eax 0x08048447 <+84>: add %edx,%eax 0x08048449 <+86>: sub 0x34(%esp),%eax 0x0804844d <+90>: mov %eax,0x34(%esp) 0x08048451 <+94>: mov 0x1c(%esp),%eax and the following is the RSP traffic between GDB and GDBserver: --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:3c840408;thread:p2e13.2e13;core:1; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:3e840408;thread:p2e13.2e13;core:2; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:42840408;thread:p2e13.2e13;core:2; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:47840408;thread:p2e13.2e13;core:0; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:49840408;thread:p2e13.2e13;core:0; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:4d840408;thread:p2e13.2e13;core:0; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:51840408;thread:p2e13.2e13;core:0; IOW, a lot of roundtrips between GDB and GDBserver. If we add a new command to the RSP, meaning "keep stepping and don't report a stop until the program goes out of the [0x08048434, 0x08048451) address range", then the RSP traffic can be reduced down to: --> vCont;r8048434,8048451:p2db0.2db0;c <-- T0505:68efffbf;04:30efffbf;08:51840408;thread:p2db0.2db0;core:1; As number of packets is reduced dramatically, the performance of stepping source lines is much improved. In case something is wrong with range stepping on the stub side, the debug info or even gdb, this adds a "set/show range-stepping" command to be able to turn range stepping off. gdb/ 2013-05-23 Yao Qi <yao@codesourcery.com> Pedro Alves <palves@redhat.com> * gdbthread.h (struct thread_control_state) <may_range_step>: New field. * infcmd.c (step_once, until_next_command): Enable range stepping. * infrun.c (displaced_step_prepare): Disable range stepping. (resume): Disable range stepping if stepping over a breakpoint or we have software watchpoints. If range stepping is enabled, assert the thread is in the stepping range. (clear_proceed_status_thread): Clear may_range_step. (handle_inferior_event): Disable range stepping as soon as we know the thread that hit the event. Re-enable it whenever we're going to step with a step range. * remote.c (struct vCont_action_support) <r>: New field. (use_range_stepping): New global. (remote_vcont_probe): Handle 'r' action. (append_resumption): Append an 'r' action if the thread may range step. (show_range_stepping): New function. (set_range_stepping): New function. (_initialize_remote): Call add_setshow_boolean_cmd to register the 'set range-stepping' and 'show range-stepping' commands. * NEWS: Mention range stepping, the new vCont;r action, and the new "set/show range-stepping" commands. gdb/doc/ 2013-05-23 Yao Qi <yao@codesourcery.com> Pedro Alves <palves@redhat.com> * gdb.texinfo (Packets): Document 'vCont;r'. (Continuing and Stepping): Document target-assisted range stepping, and the 'set range-stepping' and 'show range-stepping' commands.
2013-05-23 19:15:35 +02:00
* GDB now supports target-assigned range stepping with remote targets.
This improves the performance of stepping source lines by reducing
the number of control packets from/to GDB. See "New remote packets"
below.
* GDB now understands the element 'tvar' in the XML traceframe info.
It has the id of the collected trace state variables.
gdb/ChangeLog: 2013-09-13 Andreas Arnez <arnez@linux.vnet.ibm.com> * NEWS: Mention TDB support. * features/s390-tdb.xml: New file. * features/s390-te-linux64.xml: New file. * features/s390x-te-linux64.xml: New file. * features/Makefile (WHICH): Add new tdescs above. (s390-te-linux64-expedite): Set. (s390x-te-linux64-expedite): Set. * features/s390-te-linux64.c: New file (generated). * features/s390x-te-linux64.c: New file (generated). * regformats/s390-te-linux64.dat: New file (generated). * regformats/s390x-te-linux64.dat: New file (generated). * s390-tdep.h (HWCAP_S390_HIGH_GPRS): Define. (HWCAP_S390_TE): Likewise. (S390_TDB_DWORD0_REGNUM): Likewise. (S390_TDB_DWORD0_REGNUM): Likewise. (S390_TDB_ABORT_CODE_REGNUM): Likewise. (S390_TDB_CONFLICT_TOKEN_REGNUM): Likewise. (S390_TDB_ATIA_REGNUM): Likewise. (S390_TDB_R0_REGNUM): Likewise. (S390_TDB_R1_REGNUM): Likewise. (S390_TDB_R2_REGNUM): Likewise. (S390_TDB_R3_REGNUM): Likewise. (S390_TDB_R4_REGNUM): Likewise. (S390_TDB_R5_REGNUM): Likewise. (S390_TDB_R6_REGNUM): Likewise. (S390_TDB_R7_REGNUM): Likewise. (S390_TDB_R8_REGNUM): Likewise. (S390_TDB_R9_REGNUM): Likewise. (S390_TDB_R10_REGNUM): Likewise. (S390_TDB_R11_REGNUM): Likewise. (S390_TDB_R12_REGNUM): Likewise. (S390_TDB_R13_REGNUM): Likewise. (S390_TDB_R14_REGNUM): Likewise. (S390_TDB_R15_REGNUM): Likewise. (S390_NUM_REGS): Increase. (S390_IS_TDBREGSET_REGNUM): New macro. (s390_regmap_tdb): Declare. (s390_sizeof_tdbregset): Define. (tdesc_s390_te_linux64): Declare. (tdesc_s390x_te_linux64): Likewise. * s390-tdep.c: Add includes for "auxv.h", <elf.h>, "features/s390-te-linux64.c", and "features/s390x-te-linux64.c". (s390_regmap_tdb): New regmap. (s390_supply_tdb_regset): New function. (s390_tdb_regset): New regset. (s390_linux64v2_regset_sections): Add TDB regset to list. (s390x_linux64v2_regset_sections): Likewise. (s390_regset_from_core_section): Recognize TDB core note section. (s390_core_read_description): If HWCAP indicates TE support, select tdesc_s390_te_linux64 or tdesc_s390_s390x_te_linux64. (s390_gdbarch_init): Handle TDB regset. (_initialize_s390_tdep): Initialize new tdescs. * s390-nat.c (HWCAP_S390_HIGH_GPRS): Remove define. (have_regset_tdb): New variable. (s390_native_supply): Support register invalidation. (fetch_regset): Invalidate registers if ptrace yields ENODATA. (check_regset): Treat ENODATA as "regset exists". (s390_linux_fetch_inferior_registers): Add TDB. (s390_read_description): Check for TDB existence and select appropriate tdesc. * gdbserver/Makefile.in (clean): Add removal of new makefile targets. (s390-te-linux64.c): New makefile target. (s390x-te-linux64.c): Likewise. * gdbserver/configure.srv (srv_regobj): Append new objects s390-te-linux64.o and s390x-te-linux64.o. (srv_xmlfiles): Append new files s390-te-linux64.xml, s390x-te-linux64.xml, and s390-tdb.xml. * gdbserver/linux-s390-low.c (init_registers_s390_te_linux64): New declaration. (tdesc_s390_te_linux64): Likewise. (init_registers_s390x_te_linux64): Likewise. (tdesc_s390x_te_linux64): Likewise. (s390_check_regset): Treat ENODATA as "regset exists". (s390_arch_setup): Add TDB regset support. (initialize_low_arch): Initialize registers for new tdescs. gdb/doc/ChangeLog: 2013-09-13 Andreas Arnez <arnez@linux.vnet.ibm.com> * gdb.texinfo (Decimal Floating Point format): Mention S/390. (Standard Target Features): Add new node to menu. (S/390 and System z Features): New node. gdb/testsuite/ChangeLog: 2013-09-13 Andreas Arnez <arnez@linux.vnet.ibm.com> * gdb.arch/s390-tdbregs.c: New file. * gdb.arch/s390-tdbregs.exp: New file.
2013-09-13 16:17:31 +02:00
* On S/390 targets that provide the transactional-execution feature,
the program interruption transaction diagnostic block (TDB) is now
represented as a number of additional "registers" in GDB.
range stepping: gdb This patch teaches GDB to take advantage of target-assisted range stepping. It adds a new 'r ADDR1,ADDR2' action to vCont (vCont;r), meaning, "step once, and keep stepping as long as the thread is in the [ADDR1,ADDR2) range". Rationale: When user issues the "step" command on the following line of source, a = b + c + d * e - a; GDB single-steps every single instruction until the program reaches a new different line. E.g., on x86_64, that line compiles to: 0x08048434 <+65>: mov 0x1c(%esp),%eax 0x08048438 <+69>: mov 0x30(%esp),%edx 0x0804843c <+73>: add %eax,%edx 0x0804843e <+75>: mov 0x18(%esp),%eax 0x08048442 <+79>: imul 0x2c(%esp),%eax 0x08048447 <+84>: add %edx,%eax 0x08048449 <+86>: sub 0x34(%esp),%eax 0x0804844d <+90>: mov %eax,0x34(%esp) 0x08048451 <+94>: mov 0x1c(%esp),%eax and the following is the RSP traffic between GDB and GDBserver: --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:3c840408;thread:p2e13.2e13;core:1; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:3e840408;thread:p2e13.2e13;core:2; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:42840408;thread:p2e13.2e13;core:2; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:47840408;thread:p2e13.2e13;core:0; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:49840408;thread:p2e13.2e13;core:0; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:4d840408;thread:p2e13.2e13;core:0; --> vCont;s:p2e13.2e13;c <-- T0505:68efffbf;04:30efffbf;08:51840408;thread:p2e13.2e13;core:0; IOW, a lot of roundtrips between GDB and GDBserver. If we add a new command to the RSP, meaning "keep stepping and don't report a stop until the program goes out of the [0x08048434, 0x08048451) address range", then the RSP traffic can be reduced down to: --> vCont;r8048434,8048451:p2db0.2db0;c <-- T0505:68efffbf;04:30efffbf;08:51840408;thread:p2db0.2db0;core:1; As number of packets is reduced dramatically, the performance of stepping source lines is much improved. In case something is wrong with range stepping on the stub side, the debug info or even gdb, this adds a "set/show range-stepping" command to be able to turn range stepping off. gdb/ 2013-05-23 Yao Qi <yao@codesourcery.com> Pedro Alves <palves@redhat.com> * gdbthread.h (struct thread_control_state) <may_range_step>: New field. * infcmd.c (step_once, until_next_command): Enable range stepping. * infrun.c (displaced_step_prepare): Disable range stepping. (resume): Disable range stepping if stepping over a breakpoint or we have software watchpoints. If range stepping is enabled, assert the thread is in the stepping range. (clear_proceed_status_thread): Clear may_range_step. (handle_inferior_event): Disable range stepping as soon as we know the thread that hit the event. Re-enable it whenever we're going to step with a step range. * remote.c (struct vCont_action_support) <r>: New field. (use_range_stepping): New global. (remote_vcont_probe): Handle 'r' action. (append_resumption): Append an 'r' action if the thread may range step. (show_range_stepping): New function. (set_range_stepping): New function. (_initialize_remote): Call add_setshow_boolean_cmd to register the 'set range-stepping' and 'show range-stepping' commands. * NEWS: Mention range stepping, the new vCont;r action, and the new "set/show range-stepping" commands. gdb/doc/ 2013-05-23 Yao Qi <yao@codesourcery.com> Pedro Alves <palves@redhat.com> * gdb.texinfo (Packets): Document 'vCont;r'. (Continuing and Stepping): Document target-assisted range stepping, and the 'set range-stepping' and 'show range-stepping' commands.
2013-05-23 19:15:35 +02:00
* New remote packets
vCont;r
The vCont packet supports a new 'r' action, that tells the remote
stub to step through an address range itself, without GDB
involvemement at each single-step.
qXfer:libraries-svr4:read's annex
The previously unused annex of the qXfer:libraries-svr4:read packet
is now used to support passing an argument list. The remote stub
reports support for this argument list to GDB's qSupported query.
The defined arguments are "start" and "prev", used to reduce work
necessary for library list updating, resulting in significant
speedup.
range stepping: gdbserver (x86 GNU/Linux) This patch adds support for range stepping to GDBserver, teaching it about vCont;r. It'd be easy to enable this for all hardware single-step targets without needing the linux_target_ops hook, however, at least PPC needs special care, due to the fact that PPC atomic sequences can't be hardware single-stepped through, a thing which GDBserver doesn't know about. So this leaves the support limited to x86/x86_64. gdb/ 2013-05-23 Pedro Alves <palves@redhat.com> * NEWS: Mention GDBserver range stepping support. gdb/gdbserver/ 2013-05-23 Yao Qi <yao@codesourcery.com> Pedro Alves <palves@redhat.com> * linux-low.c (lwp_in_step_range): New function. (linux_wait_1): If the thread was range stepping and stopped outside the stepping range, report the stop to GDB. Otherwise, continue stepping. Add range stepping debug output. (linux_set_resume_request): Copy the step range from the resume request to the lwp. (linux_supports_range_stepping): New. (linux_target_ops) <supports_range_stepping>: Set to linux_supports_range_stepping. * linux-low.h (struct linux_target_ops) <supports_range_stepping>: New field. (struct lwp_info) <step_range_start, step_range_end>: New fields. * linux-x86-low.c (x86_supports_range_stepping): New. (the_low_target) <supports_range_stepping>: Set to x86_supports_range_stepping. * server.c (handle_v_cont): Handle 'r' action. (handle_v_requests): Append ";r" if the target supports range stepping. * target.h (struct thread_resume) <step_range_start, step_range_end>: New fields. (struct target_ops) <supports_range_stepping>: New field. (target_supports_range_stepping): New macro.
2013-05-23 19:17:50 +02:00
* New features in the GDB remote stub, GDBserver
** GDBserver now supports target-assisted range stepping. Currently
enabled on x86/x86_64 GNU/Linux targets.
** GDBserver now adds element 'tvar' in the XML in the reply to
'qXfer:traceframe-info:read'. It has the id of the collected
trace state variables.
** GDBserver now supports hardware watchpoints on the MIPS GNU/Linux
target.
* New 'z' formatter for printing and examining memory, this displays the
value as hexadecimal zero padded on the left to the size of the type.
* GDB can now use Windows x64 unwinding data.
* The "set remotebaud" command has been replaced by "set serial baud".
Similarly, "show remotebaud" has been replaced by "show serial baud".
The "set remotebaud" and "show remotebaud" commands are still available
to provide backward compatibility with older versions of GDB.
*** Changes in GDB 7.6
* Target record has been renamed to record-full.
Record/replay is now enabled with the "record full" command.
This also affects settings that are associated with full record/replay
that have been moved from "set/show record" to "set/show record full":
set|show record full insn-number-max
set|show record full stop-at-limit
set|show record full memory-query
* A new record target "record-btrace" has been added. The new target
uses hardware support to record the control-flow of a process. It
does not support replaying the execution, but it implements the
below new commands for investigating the recorded execution log.
This new recording method can be enabled using:
record btrace
The "record-btrace" target is only available on Intel Atom processors
and requires a Linux kernel 2.6.32 or later.
* Two new commands have been added for record/replay to give information
about the recorded execution without having to replay the execution.
The commands are only supported by "record btrace".
record instruction-history prints the execution history at
instruction granularity
record function-call-history prints the execution history at
function granularity
* New native configurations
ARM AArch64 GNU/Linux aarch64*-*-linux-gnu
FreeBSD/powerpc powerpc*-*-freebsd
x86_64/Cygwin x86_64-*-cygwin*
Tilera TILE-Gx GNU/Linux tilegx*-*-linux-gnu
* New targets
ARM AArch64 aarch64*-*-elf
ARM AArch64 GNU/Linux aarch64*-*-linux
Lynx 178 PowerPC powerpc-*-lynx*178
x86_64/Cygwin x86_64-*-cygwin*
Tilera TILE-Gx GNU/Linux tilegx*-*-linux
* If the configured location of system.gdbinit file (as given by the
--with-system-gdbinit option at configure time) is in the
data-directory (as specified by --with-gdb-datadir at configure
time) or in one of its subdirectories, then GDB will look for the
system-wide init file in the directory specified by the
--data-directory command-line option.
* New command line options:
-nh Disables auto-loading of ~/.gdbinit, but still executes all the
other initialization files, unlike -nx which disables all of them.
* Removed command line options
-epoch This was used by the gdb mode in Epoch, an ancient fork of
Emacs.
* The 'ptype' and 'whatis' commands now accept an argument to control
type formatting.
* 'info proc' now works on some core files.
* Python scripting
** Vectors can be created with gdb.Type.vector.
** Python's atexit.register now works in GDB.
* NEWS: Update. * data-directory/Makefile.in (PYTHON_FILES): Add type_printers.py. * python/lib/gdb/command/type_printers.py: New file. * python/lib/gdb/command/types.py (TypePrinter): New class. (_get_some_type_recognizers, get_type_recognizers, apply_type_recognizers, register_type_printer): New functions. * python/py-objfile.c (objfile_object) <type_printers>: New field. (objfpy_dealloc): Decref new field. (objfpy_new): Set new field. (objfpy_get_type_printers, objfpy_set_type_printers): New functions. (objfile_to_objfile_object): Set new field. (objfile_getset): Add "type_printers". * python/py-progspace.c (pspace_object) <type_printers>: New field. (pspy_dealloc): Decref new field. (pspy_new): Set new field. (pspy_get_type_printers, pspy_set_type_printers): New functions. (pspace_to_pspace_object): Set new field. (pspace_getset): Add "type_printers". * python/python.c (start_type_printers, apply_type_printers, free_type_printers): New functions. (_initialize_python): Set gdb.type_printers. * python/python.h (start_type_printers, apply_type_printers, free_type_printers): Declare. * typeprint.c (type_print_raw_options, default_ptype_flags): Update for new fields. (do_free_global_table, create_global_typedef_table, find_global_typedef): New functions. (find_typedef_in_hash): Use find_global_typedef. (whatis_exp): Use create_global_typedef_table. Change cleanup handling. * typeprint.h (struct type_print_options) <global_typedefs, global_printers>: New fields. doc * gdb.texinfo (Symbols): Document "info type-printers", "enable type-printer" and "disable type-printer". (Python API): Add new node to menu. (Type Printing API): New node. (Progspaces In Python): Document type_printers field. (Objfiles In Python): Likewise. (gdb.types) <get_type_recognizers, apply_type_recognizers, register_type_printer, TypePrinter>: Document. testsuite * gdb.base/completion.exp: Update for "info type-printers". * gdb.python/py-typeprint.cc: New file. * gdb.python/py-typeprint.exp: New file. * gdb.python/py-typeprint.py: New file.
2012-11-12 18:41:59 +01:00
** Types can be pretty-printed via a Python API.
Add support for Python 3. * NEWS: Mention Python 3 support. * varobj.c (value_get_print_value): Use python_string_to_target_string. * python/py-block.c: Use PyVarObject_HEAD_INIT in initialization of type objects. * python/py-breakpoint.c: Ditto. * python/py-cmd.c: Ditto. * python/py-event.c: Ditto. * python/py-event.h: Ditto. * python/py-evtregistry.c: Ditto. * python/py-finishbreakpoint.c: Ditto. * python/py-frame.c: Ditto. * python/py-function.c: Ditto. * python/py-infthread.c: Ditto. * python/py-lazy-string.c: Ditto. * python/py-progspace.c: Ditto. * /python/py-symbol.c: Ditto. * python/py-evts.c: (gdbpy_initialize_py_events): Add module initialization for Python 3. * python/py-inferior.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (infpy_read_memory): Return memoryview object if Python 3. (infpy_write_memory): Use "s*" operand parsing code for Python 3. (infpy_search_memory): Ditto. (get_buffer): New function for Python 3. * python/py-objfile.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (objfpy_dealloc): Use Py_TYPE to call tp_free. * python/py-param.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (get_attr): Use PyUnicode_CompareWithASCIIString if Python 3. (set_attr): Ditto. * python/py-prettyprint.c (print_string_repr): use PyBytes methods instead of PyString methods if Python 3. (print_children): Skip push_dummy_python_frame call if Python 3. * python/py-symtab.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (salpy_dealloc): Use Py_TYPE to call tp_free. * python/py-type.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (field_dealloc): Use Py_TYPE to call tp_free. (typy_dealloc): Ditto. (type_object_as_number): Adjust struct initializations for differences in layout for Python 2 vs. Python 3. * python/py-utils.c (python_string_to_unicode): Omit non-Unicode string case for Python 3. (unicode_to_encoded_python_string): Shorten code (no functional change). (python_string_to_target_python_string): Comment that in Python 3 returned value is a Python "bytes" type. (gdbpy_is_string): Omit non-Unicode string check in Python 3. (gdb_py_object_from_longest): Omit non-long integer case in Python 3. (gdb_py_object_from_ulongest): Ditto. * python/py-value.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (valpy_dealloc): Use Py_TYPE to call tp_free. (valpy_int): Omit function if Python 3. (convert_value_from_python): Use "%S" format (Python object as a string) if Python 3. (value_object_as_number): Adjust struct initializations for differences in layout for Python 2 vs. Python 3. * python/python-config.py: Adjust syntax for Python 3 compatibility. Include "sys.abiflags" string as part of python library name, if that attribute exists (Python 3). * python/python-internal.h (IS_PY3): Define if Python 3. (Py_TPFLAGS_HAVE_ITER, Py_TPFLAGS_CHECKTYPES): Define with placeholder value if Python 3. (PyInt_Check, PyInt_FromLong, PyInt_AsLong, PyString_FromString, PyString_Decode, PyString_FromFormat, PyString_Check): Define as analogous Python 3 API function if Python 3. (PyVarObject_HEAD_INIT): Define if not already defined. (Py_TYPE): Ditto. * python/python.c (eval_python_command): Omit Py_FlushLine call if Python 3. Check return values of all Python API calls for error. Supply dummy "python" and "python-interactive" commands if Python initialization failed. (_initialize_python): Convert argc to wchar_t** if Python 3. Add module initialization for Python 3. (finish_python_initialization): Pass wchar_t * argument to PySys_SetPath if Python 3. * python/lib/gdb/__init__.py: Define "reload" if Python 3. (_GdbFile): New class for common output file behavior. (GdbOutFile): Subclass from _GdbFile. (GdbOutputErrorFile): Ditto. (auto_load_packages): Adjust syntax for Python 3 compatibility. * python/lib/gdb/printing.py: Define basestr and int if Python 3. * python/lib/gdb/prompt.py: Use sorted() function rather than sort() method. * python/lib/gdb/command/explore.py: Define raw_input if Python 3. Adjust syntax for Python 3 compatibility. * python/lib/gdb/command/pretty_printers.py: Use sorted() function rather than sort() method. Adjust syntax for Python 3 compatibility. * python/lib/gdb/command/type_printers.py: Ditto. * doc/gdb.texinfo (Inferior.read_memory): Mention that the return value is a memoryview object if Python 3.
2012-12-12 17:47:30 +01:00
** Python 3 is now supported (in addition to Python 2.4 or later)
** New class gdb.Architecture exposes GDB's internal representation
of architecture in the Python API.
** New method Frame.architecture returns the gdb.Architecture object
corresponding to the frame's architecture.
* New Python-based convenience functions:
** $_memeq(buf1, buf2, length)
** $_streq(str1, str2)
** $_strlen(str)
** $_regex(str, regex)
* The 'cd' command now defaults to using '~' (the home directory) if not
given an argument.
* The C++ ABI now defaults to the GNU v3 ABI. This has been the
default for GCC since November 2000.
* The command 'forward-search' can now be abbreviated as 'fo'.
2012-12-15 03:19:21 +01:00
* The command 'info tracepoints' can now display 'installed on target'
or 'not installed on target' for each non-pending location of tracepoint.
* New configure options
--enable-libmcheck/--disable-libmcheck
By default, development versions are built with -lmcheck on hosts
that support it, in order to help track memory corruption issues.
Release versions, on the other hand, are built without -lmcheck
by default. The --enable-libmcheck/--disable-libmcheck configure
options allow the user to override that default.
gdb/ 2013-04-10 Hui Zhu <hui@codesourcery.com> Yao Qi <yao@codesourcery.com> * configure.ac: Check libbabeltrace is installed. * config.in: Regenerate. * configure: Regenerate. * Makefile.in (LIBBABELTRACE): New. (CLIBS): Add LIBBABELTRACE. * ctf.c: Include "exec.h". (CTF_EVENT_ID_STATUS, CTF_EVENT_ID_TSV_DEF): New macros. (CTF_EVENT_ID_TP_DEF, ctf_save_write_int32): New macros. (ctf_save_metadata_header): Define new type aliases in metadata. (ctf_write_header): Define event type "tsv_def" and "tp_def" in metadata. Start a new faked packet for trace status. (ctf_write_status): Write trace status to CTF. (ctf_write_uploaded_tsv): Write TSV to CTF. (ctf_write_uploaded_tp): Write tracepoint definition to CTF. (ctf_write_definition_end): End the faked packet. (ctx, ctf_iter, trace_dirname): New. (start_pos): New variable. (ctf_destroy, ctf_open_dir, ctf_open): New. (SET_INT32_FIELD, SET_ARRAY_FIELD, SET_STRING_FIELD): New macros. (ctf_read_tsv, ctf_read_tp, ctf_close, ctf_files_info): New. (ctf_fetch_registers, ctf_xfer_partial): New. (ctf_get_trace_state_variable_value): New. (ctf_get_tpnum_from_frame_event): New. (ctf_get_traceframe_address): New. (ctf_trace_find, ctf_has_stack): New. (ctf_has_registers, ctf_traceframe_info, init_ctf_ops): New. (ctf_get_trace_status, ctf_read_status): New. (_initialize_ctf): New. * tracepoint.c (get_tracepoint_number): New (get_uploaded_tsv): Remove 'static'. (struct traceframe_info, trace_regblock_size): Move it to ... * tracepoint.h: ... here. (get_tracepoint_number): Declare it. (get_uploaded_tsv): Declare it. * NEWS: Mention new configure option. gdb/doc/ 2013-04-10 Yao Qi <yao@codesourcery.com> * gdb.texinfo (Trace Files): Add "target ctf". gdb/testsuite/ 2013-04-10 Yao Qi <yao@codesourcery.com> * gdb.trace/actions.exp: Save trace data to CTF. Change to ctf target if GDB supports, read CTF data in ctf target, and check the actions of tracepoints. * gdb.trace/while-stepping.exp: Likewise. * gdb.trace/report.exp: Test GDB saves trace data to CTF format and read CTF trace file if GDB supports. * gdb.trace/tstatus.exp: Save trace data to CTF. If ctf target is supported, change to ctf target, read trace data and check output of command "tstatus". * gdb.trace/tsv.exp: Save trace frame to CTF. If GDB supports, read CTF data by target ctf and call check_tsv.
2013-04-10 11:42:57 +02:00
--with-babeltrace/--with-babeltrace-include/--with-babeltrace-lib
This configure option allows the user to build GDB with
libbabeltrace using which GDB can read Common Trace Format data.
* New commands (for set/show, see "New options" below)
catch signal
Catch signals. This is similar to "handle", but allows commands and
conditions to be attached.
maint info bfds
List the BFDs known to GDB.
python-interactive [command]
pi [command]
Start a Python interactive prompt, or evaluate the optional command
and print the result of expressions.
py [command]
"py" is a new alias for "python".
* NEWS: Update. * data-directory/Makefile.in (PYTHON_FILES): Add type_printers.py. * python/lib/gdb/command/type_printers.py: New file. * python/lib/gdb/command/types.py (TypePrinter): New class. (_get_some_type_recognizers, get_type_recognizers, apply_type_recognizers, register_type_printer): New functions. * python/py-objfile.c (objfile_object) <type_printers>: New field. (objfpy_dealloc): Decref new field. (objfpy_new): Set new field. (objfpy_get_type_printers, objfpy_set_type_printers): New functions. (objfile_to_objfile_object): Set new field. (objfile_getset): Add "type_printers". * python/py-progspace.c (pspace_object) <type_printers>: New field. (pspy_dealloc): Decref new field. (pspy_new): Set new field. (pspy_get_type_printers, pspy_set_type_printers): New functions. (pspace_to_pspace_object): Set new field. (pspace_getset): Add "type_printers". * python/python.c (start_type_printers, apply_type_printers, free_type_printers): New functions. (_initialize_python): Set gdb.type_printers. * python/python.h (start_type_printers, apply_type_printers, free_type_printers): Declare. * typeprint.c (type_print_raw_options, default_ptype_flags): Update for new fields. (do_free_global_table, create_global_typedef_table, find_global_typedef): New functions. (find_typedef_in_hash): Use find_global_typedef. (whatis_exp): Use create_global_typedef_table. Change cleanup handling. * typeprint.h (struct type_print_options) <global_typedefs, global_printers>: New fields. doc * gdb.texinfo (Symbols): Document "info type-printers", "enable type-printer" and "disable type-printer". (Python API): Add new node to menu. (Type Printing API): New node. (Progspaces In Python): Document type_printers field. (Objfiles In Python): Likewise. (gdb.types) <get_type_recognizers, apply_type_recognizers, register_type_printer, TypePrinter>: Document. testsuite * gdb.base/completion.exp: Update for "info type-printers". * gdb.python/py-typeprint.cc: New file. * gdb.python/py-typeprint.exp: New file. * gdb.python/py-typeprint.py: New file.
2012-11-12 18:41:59 +01:00
enable type-printer [name]...
disable type-printer [name]...
Enable or disable type printers.
* Removed commands
** For the Renesas Super-H architecture, the "regs" command has been removed
(has been deprecated in GDB 7.5), and "info all-registers" should be used
instead.
* New options
set print type methods (on|off)
show print type methods
Control whether method declarations are displayed by "ptype".
The default is to show them.
set print type typedefs (on|off)
show print type typedefs
Control whether typedef definitions are displayed by "ptype".
The default is to show them.
set filename-display basename|relative|absolute
show filename-display
Control the way in which filenames is displayed.
The default is "relative", which preserves previous behavior.
set trace-buffer-size
show trace-buffer-size
Request target to change the size of trace buffer.
set remote trace-buffer-size-packet auto|on|off
show remote trace-buffer-size-packet
Control the use of the remote protocol `QTBuffer:size' packet.
set debug aarch64
show debug aarch64
Control display of debugging messages related to ARM AArch64.
The default is off.
set debug coff-pe-read
show debug coff-pe-read
Control display of debugging messages related to reading of COFF/PE
exported symbols.
set debug mach-o
show debug mach-o
Control display of debugging messages related to Mach-O symbols
processing.
set debug notification
show debug notification
Control display of debugging info for async remote notification.
gdb/ * cli/cli-decode.c (set_cmd_prefix): New. (lookup_cmd_for_prefixlist): New. (add_prefix_cmd): Call set_cmd_prefix and update field 'prefix' of each cmd_list_element in *prefixlist. (add_setshow_cmd_full): set_cmd_prefix. (add_alias_cmd): Likewise. * cli/cli-decode.h (struct cmd_list_element) <prefix>: New field. Declare 'auto_boolean_enums'. * cli/cli-setshow.c: Include "observer.h". (notify_command_param_changed_p): New. (add_setshow_auto_boolean_cmd): Move auto_boolean_enums out. Remove 'static'. (do_setshow_command): Split it to ... (do_set_command, do_show_command): ... them. New. (do_set_command): Call observer_notify_command_param_changed if notify_command_param_changed_p returns true. (cmd_show_list): Caller update. * auto-load.c (set_auto_load_cmd): Likewise. * remote.c (show_remote_cmd): Likewise. * cli/cli-setshow.h: Update declarations. * top.c (execute_command): Call do_set_command and do_show_command. * NEWS: Mention new MI notification. * mi/mi-interp.c: Declare mi_command_param_changed. (mi_interpreter_init): Attach mi_command_param_changed to observer command_param_changed. (mi_command_param_changed): New. Remove mi_suppress_breakpoint_notifications. Define global variable mi_suppress_notification. (mi_breakpoint_created): Update. (mi_breakpoint_deleted): Likewise. (mi_breakpoint_modified): Likewise. * mi/mi-main.c (mi_cmd_execute): Likewise. Check command 'gdb-set' and set mi_suppress_notification. * mi/mi-main.h: (mi_suppress_notification): New struct. gdb/doc/ * observer.texi: New observer command_param_changed. * gdb.texinfo (GDB/MI Async Records): Doc for '=cmd-param-changed'. gdb/testsuite/ * gdb.mi/mi-cmd-param-changed.exp: New. * gdb.mi/mi-cli.exp: Update for MI notification "=cmd-param-changed". * gdb.mi/mi-var-rtti.exp, gdb.mi/mi2-cli.exp: Likewise. * gdb.mi/mi2-prompt.exp: Likewise.
2012-08-09 14:53:46 +02:00
* MI changes
** Command parameter changes are now notified using new async record
"=cmd-param-changed".
** Trace frame changes caused by command "tfind" are now notified using
new async record "=traceframe-changed".
** The creation, deletion and modification of trace state variables
are now notified using new async records "=tsv-created",
"=tsv-deleted" and "=tsv-modified".
** The start and stop of process record are now notified using new
async record "=record-started" and "=record-stopped".
** Memory changes are now notified using new async record
"=memory-changed".
** The data-disassemble command response will include a "fullname" field
containing the absolute file name when source has been requested.
** New optional parameter COUNT added to the "-data-write-memory-bytes"
command, to allow pattern filling of memory areas.
** New commands "-catch-load"/"-catch-unload" added for intercepting
library load/unload events.
2012-12-15 03:19:21 +01:00
** The response to breakpoint commands and breakpoint async records
includes an "installed" field containing a boolean state about each
non-pending tracepoint location is whether installed on target or not.
** Output of the "-trace-status" command includes a "trace-file" field
containing the name of the trace file being examined. This field is
optional, and only present when examining a trace file.
** The "fullname" field is now always present along with the "file" field,
even if the file cannot be found by GDB.
gdb/ * cli/cli-decode.c (set_cmd_prefix): New. (lookup_cmd_for_prefixlist): New. (add_prefix_cmd): Call set_cmd_prefix and update field 'prefix' of each cmd_list_element in *prefixlist. (add_setshow_cmd_full): set_cmd_prefix. (add_alias_cmd): Likewise. * cli/cli-decode.h (struct cmd_list_element) <prefix>: New field. Declare 'auto_boolean_enums'. * cli/cli-setshow.c: Include "observer.h". (notify_command_param_changed_p): New. (add_setshow_auto_boolean_cmd): Move auto_boolean_enums out. Remove 'static'. (do_setshow_command): Split it to ... (do_set_command, do_show_command): ... them. New. (do_set_command): Call observer_notify_command_param_changed if notify_command_param_changed_p returns true. (cmd_show_list): Caller update. * auto-load.c (set_auto_load_cmd): Likewise. * remote.c (show_remote_cmd): Likewise. * cli/cli-setshow.h: Update declarations. * top.c (execute_command): Call do_set_command and do_show_command. * NEWS: Mention new MI notification. * mi/mi-interp.c: Declare mi_command_param_changed. (mi_interpreter_init): Attach mi_command_param_changed to observer command_param_changed. (mi_command_param_changed): New. Remove mi_suppress_breakpoint_notifications. Define global variable mi_suppress_notification. (mi_breakpoint_created): Update. (mi_breakpoint_deleted): Likewise. (mi_breakpoint_modified): Likewise. * mi/mi-main.c (mi_cmd_execute): Likewise. Check command 'gdb-set' and set mi_suppress_notification. * mi/mi-main.h: (mi_suppress_notification): New struct. gdb/doc/ * observer.texi: New observer command_param_changed. * gdb.texinfo (GDB/MI Async Records): Doc for '=cmd-param-changed'. gdb/testsuite/ * gdb.mi/mi-cmd-param-changed.exp: New. * gdb.mi/mi-cli.exp: Update for MI notification "=cmd-param-changed". * gdb.mi/mi-var-rtti.exp, gdb.mi/mi2-cli.exp: Likewise. * gdb.mi/mi2-prompt.exp: Likewise.
2012-08-09 14:53:46 +02:00
* GDB now supports the "mini debuginfo" section, .gnu_debugdata.
You must have the LZMA library available when configuring GDB for this
feature to be enabled. For more information, see:
http://fedoraproject.org/wiki/Features/MiniDebugInfo
2012-03-08 Stan Shebs <stan@codesourcery.com> Hafiz Abid Qadeer <abidh@codesourcery.com> gdb/ * NEWS: Mention set and show trace-buffer-size commands. Mention new packet. * target.h (struct target_ops): New method to_set_trace_buffer_size. (target_set_trace_buffer_size): New macro. * target.c (update_current_target): Set up new method. * tracepoint.c (trace_buffer_size): New global. (start_tracing): Send it to the target. (set_trace_buffer_size): New function. (_initialize_tracepoint): Add new setshow for trace-buffer-size. * remote.c (remote_set_trace_buffer_size): New function. (_initialize_remote): Use it. (QTBuffer:size) New remote command. (PACKET_QTBuffer_size): New enum. (remote_protocol_features): Add an entry for PACKET_QTBuffer_size. gdb/gdbserver/ * tracepoint.c (trace_buffer_size): New global. (DEFAULT_TRACE_BUFFER_SIZE): New define. (init_trace_buffer): Change to one-argument function. Allocate trace buffer memory. (handle_tracepoint_general_set): Call cmd_bigqtbuffer_size to handle QTBuffer:size packet. (cmd_bigqtbuffer_size): New function. (initialize_tracepoint): Call init_trace_buffer with DEFAULT_TRACE_BUFFER_SIZE. * server.c (handle_query): Add QTBuffer:size in the supported packets. gdb/doc/ * gdb.texinfo (Starting and Stopping Trace Experiments): Document trace-buffer-size set and show commands. (Tracepoint Packets): Document QTBuffer:size. (General Query Packets): Document QTBuffer:size. gdb/testsuite/ * gdb.trace/trace-buffer-size.exp: New file. * gdb.trace/trace-buffer-size.c: New file.
2013-03-08 16:06:39 +01:00
* New remote packets
QTBuffer:size
Set the size of trace buffer. The remote stub reports support for this
packet to gdb's qSupported query.
Qbtrace:bts
Enable Branch Trace Store (BTS)-based branch tracing for the current
thread. The remote stub reports support for this packet to gdb's
qSupported query.
Qbtrace:off
Disable branch tracing for the current thread. The remote stub reports
support for this packet to gdb's qSupported query.
qXfer:btrace:read
Read the traced branches for the current thread. The remote stub
reports support for this packet to gdb's qSupported query.
*** Changes in GDB 7.5
* GDB now supports x32 ABI. Visit <http://sites.google.com/site/x32abi/>
for more x32 ABI info.
* GDB now supports access to MIPS DSP registers on Linux targets.
gdb/ * NEWS: Add microMIPS support and "set mips compression", "show mips compression" commands. * mips-tdep.h (mips_isa): New enum. (gdbarch_tdep): Add mips_isa. (mips_pc_is_mips16): Update prototype. (mips_pc_is_mips, mips_pc_is_micromips): New prototypes. * mips-tdep.c (mips_compression_mips16): New variable. (mips_compression_micromips): Likewise. (mips_compression_strings): Likewise. (mips_compression_string): Likewise. (is_mips16_isa, is_micromips_isa): New functions. (is_mips16_addr): Rename to... (is_compact_addr): ... this. (unmake_mips16_addr): Likewise to... (unmake_compact_addr): ... this. (make_mips16_addr): Likewise to... (make_compact_addr): ... this. (is_mips_addr, is_mips16_addr, is_micromips_addr): New functions. (mips_elf_make_msymbol_special): Handle microMIPS code. (msymbol_is_special): Rename to... (msymbol_is_mips16): ... this. (mips_make_symbol_special, mips_pc_is_mips16): Update accordingly. (msymbol_is_mips, msymbol_is_micromips): New functions. (mips16_to_32_reg): Rename to... (mips_reg3_to_reg): ... this. (mips_pc_is_mips, mips_pc_is_micromips): New functions. (mips_pc_isa): Likewise. (mips_read_pc, mips_unwind_pc, mips_write_pc): Handle microMIPS code. (mips_fetch_instruction): Pass return status instead of printing an error message if requested. Handle microMIPS code. Bail out on an invalid ISA. (micromips_op): New macro. (b0s4_imm, b0s5_imm, b0s5_reg, b0s7_imm, b0s10_imm): Likewise. (b1s9_imm, b2s3_cc, b4s2_regl, b5s5_op, b5s5_reg): Likewise. (b6s4_op, b7s3_reg): Likewise. (b0s6_op, b0s11_op, b0s12_imm, b0s16_imm, b0s26_imm): Likewise. (b6s10_ext, b11s5_reg, b12s4_op): Likewise. (mips_insn_size): New function. (mips32_next_pc): Update mips_fetch_instruction call. (micromips_relative_offset7): New function. (micromips_relative_offset10): Likewise. (micromips_relative_offset16): Likewise. (micromips_pc_insn_size): Likewise. (micromips_bc1_pc): Likewise. (micromips_next_pc): Likewise. (unpack_mips16): Update mips_fetch_instruction call. (extended_mips16_next_pc): Update according to change to mips16_to_32_reg. (mips_next_pc): Update mips_pc_is_mips16 call. Handle microMIPS code. (mips16_scan_prologue): Update mips_fetch_instruction call. Update according to change to mips16_to_32_reg. (mips_insn16_frame_sniffer): Update mips_pc_is_mips16 call. (mips_insn16_frame_base_sniffer): Likewise. (micromips_decode_imm9): New function. (micromips_scan_prologue): Likewise. (mips_micro_frame_cache): Likewise. (mips_micro_frame_this_id): Likewise. (mips_micro_frame_prev_register): Likewise. (mips_micro_frame_sniffer): Likewise. (mips_micro_frame_unwind): New variable. (mips_micro_frame_base_address): New function. (mips_micro_frame_base): New variable. (mips_micro_frame_base_sniffer): New function. (mips32_scan_prologue): Update mips_fetch_instruction call. (mips_insn32_frame_sniffer): Check for the standard MIPS ISA rather than for MIPS16. (mips_insn32_frame_base_sniffer): Likewise. (mips_addr_bits_remove): Handle microMIPS code. (deal_with_atomic_sequence): Rename to... (mips_deal_with_atomic_sequence): ... this. Update the type of the variable used to hold an instruction. Remove the ISA bit check. Update mips_fetch_instruction call. (micromips_deal_with_atomic_sequence): New function. (deal_with_atomic_sequence): Likewise. (mips_about_to_return): Handle microMIPS code. Update mips_fetch_instruction call. (heuristic_proc_start): Check for the standard MIPS ISA rather than for MIPS16. Update mips_pc_is_mips16 and mips_fetch_instruction calls. Handle microMIPS code. (mips_push_dummy_code): Handle microMIPS code. (mips_eabi_push_dummy_call): Likewise. (mips_o32_return_value): Update mips_pc_is_mips16 call. (mips_o64_push_dummy_call): Handle microMIPS code. (mips_o64_return_value): Update mips_pc_is_mips16 call. (is_delayed): Remove function. (mips_single_step_through_delay): Replace the call to is_delayed with mips32_instruction_has_delay_slot. Correct MIPS16 handling. Handle microMIPS code. (mips_skip_prologue): Update mips_pc_is_mips16 call. Handle microMIPS code. (mips32_in_function_epilogue_p): Update mips_fetch_instruction call. (micromips_in_function_epilogue_p): New function. (mips16_in_function_epilogue_p): Update mips_fetch_instruction call. (mips_in_function_epilogue_p): Update mips_pc_is_mips16 call. Handle microMIPS. (gdb_print_insn_mips): Likewise. (mips_breakpoint_from_pc): Likewise. (mips_remote_breakpoint_from_pc): New function. (mips32_instruction_has_delay_slot): Simplify making use of the updated mips_fetch_instruction interface. (micromips_instruction_has_delay_slot): New function. (mips16_instruction_has_delay_slot): Simplify making use of the updated mips_fetch_instruction interface. (mips_adjust_breakpoint_address): Check for the standard MIPS ISA rather than for MIPS16 ISA. Update for unmake_compact_addr calls. Handle microMIPS code. (mips_get_mips16_fn_stub_pc): Update mips_fetch_instruction call. (mips_skip_trampoline_code): Handle microMIPS code. (global_mips_compression): New function. (mips_gdbarch_init): Handle the compressed ISA setting from ELF file flags. Register the microMIPS remote breakpoint handler and heuristic frame unwinder. (show_mips_compression): New function. (_initialize_mips_tdep): Add the "set mips compression" and "show mips compression" commands. gdb/doc/ * gdb.texinfo (MIPS): Document "set mips compression" and "show mips compression". (MIPS Breakpoint Kinds): New subsubsection.
2012-05-19 01:46:40 +02:00
* GDB now supports debugging microMIPS binaries.
2012-05-12 00:24:24 +02:00
* The "info os" command on GNU/Linux can now display information on
several new classes of objects managed by the operating system:
"info os procgroups" lists process groups
"info os files" lists file descriptors
"info os sockets" lists internet-domain sockets
"info os shm" lists shared-memory regions
"info os semaphores" lists semaphores
"info os msg" lists message queues
"info os modules" lists loaded kernel modules
2012-04-27 Sergio Durigan Junior <sergiodj@redhat.com> Tom Tromey <tromey@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> * Makefile.in (SFILES): Add `probe' and `stap-probe'. (COMMON_OBS): Likewise. (HFILES_NO_SRCDIR): Add `probe'. * NEWS: Mention support for static and SystemTap probes. * amd64-tdep.c (amd64_init_abi): Initializing proper fields used by SystemTap probes' arguments parser. * arm-linux-tdep.c: Including headers needed to perform the parsing of SystemTap probes' arguments. (arm_stap_is_single_operand): New function. (arm_stap_parse_special_token): Likewise. (arm_linux_init_abi): Initializing proper fields used by SystemTap probes' arguments parser. * ax-gdb.c (require_rvalue): Removing static declaration. (gen_expr): Likewise. * ax-gdb.h (gen_expr): Declaring function. (require_rvalue): Likewise. * breakpoint.c: Include `gdb_regex.h' and `probe.h'. (bkpt_probe_breakpoint_ops): New variable. (momentary_breakpoint_from_master): Set the `probe' value. (add_location_to_breakpoint): Likewise. (break_command_1): Using proper breakpoint_ops according to the argument passed by the user in the command line. (bkpt_probe_insert_location): New function. (bkpt_probe_remove_location): Likewise. (bkpt_probe_create_sals_from_address): Likewise. (bkpt_probe_decode_linespec): Likewise. (tracepoint_probe_create_sals_from_address): Likewise. (tracepoint_probe_decode_linespec): Likewise. (tracepoint_probe_breakpoint_ops): New variable. (trace_command): Using proper breakpoint_ops according to the argument passed by the user in the command line. (initialize_breakpoint_ops): Initializing breakpoint_ops for static probes on breakpoints and tracepoints. * breakpoint.h (struct bp_location) <probe>: New field. * cli-utils.c (skip_spaces_const): New function. (extract_arg): Likewise. * cli-utils.h (skip_spaces_const): Likewise. (extract_arg): Likewise. * coffread.c (coff_sym_fns): Add `sym_probe_fns' value. * configure.ac: Append `stap-probe.o' to be generated when ELF support is present. * configure: Regenerate. * dbxread.c (aout_sym_fns): Add `sym_probe_fns' value. * elfread.c: Include `probe.h' and `arch-utils.h'. (probe_key): New variable. (elf_get_probes): New function. (elf_get_probe_argument_count): Likewise. (elf_evaluate_probe_argument): Likewise. (elf_compile_to_ax): Likewise. (elf_symfile_relocate_probe): Likewise. (stap_probe_key_free): Likewise. (elf_probe_fns): New variable. (elf_sym_fns): Add `sym_probe_fns' value. (elf_sym_fns_lazy_psyms): Likewise. (elf_sym_fns_gdb_index): Likewise. (_initialize_elfread): Initialize objfile cache for static probes. * gdb_vecs.h (struct probe): New forward declaration. (probe_p): New VEC declaration. * gdbarch.c: Regenerate. * gdbarch.h: Regenerate. * gdbarch.sh (stap_integer_prefix): New variable. (stap_integer_suffix): Likewise. (stap_register_prefix): Likewise. (stap_register_suffix): Likewise. (stap_register_indirection_prefix): Likewise. (stap_register_indirection_suffix): Likewise. (stap_gdb_register_prefix): Likewise. (stap_gdb_register_suffix): Likewise. (stap_is_single_operand): New function. (stap_parse_special_token): Likewise. (struct stap_parse_info): Forward declaration. * i386-tdep.c: Including headers needed to perform the parsing of SystemTap probes' arguments. (i386_stap_is_single_operand): New function. (i386_stap_parse_special_token): Likewise. (i386_elf_init_abi): Initializing proper fields used by SystemTap probes' arguments parser. * i386-tdep.h (i386_stap_is_single_operand): New function. (i386_stap_parse_special_token): Likewise. * machoread.c (macho_sym_fns): Add `sym_probe_fns' value. * mipsread.c (ecoff_sym_fns): Likewise. * objfiles.c (objfile_relocate1): Support relocation for static probes. * parse.c (prefixify_expression): Remove static declaration. (initialize_expout): Likewise. (reallocate_expout): Likewise. * parser-defs.h (initialize_expout): Declare function. (reallocate_expout): Likewise. (prefixify_expression): Likewise. * ppc-linux-tdep.c: Including headers needed to perform the parsing of SystemTap probes' arguments. (ppc_stap_is_single_operand): New function. (ppc_stap_parse_special_token): Likewise. (ppc_linux_init_abi): Initializing proper fields used by SystemTap probes' arguments parser. * probe.c: New file, for generic statically defined probe support. * probe.h: Likewise. * s390-tdep.c: Including headers needed to perform the parsing of SystemTap probes' arguments. (s390_stap_is_single_operand): New function. (s390_gdbarch_init): Initializing proper fields used by SystemTap probes' arguments parser. * somread.c (som_sym_fns): Add `sym_probe_fns' value. * stap-probe.c: New file, for SystemTap probe support. * stap-probe.h: Likewise. * symfile.h: Include `gdb_vecs.h'. (struct sym_probe_fns): New struct. (struct sym_fns) <sym_probe_fns>: New field. * symtab.c (init_sal): Initialize `probe' field. * symtab.h (struct probe): Forward declaration. (struct symtab_and_line) <probe>: New field. * tracepoint.c (start_tracing): Adjust semaphore on breakpoints locations. (stop_tracing): Likewise. * xcoffread.c (xcoff_sym_fns): Add `sym_probe_fns' value.
2012-04-27 22:47:57 +02:00
* GDB now has support for SDT (Static Defined Tracing) probes. Currently,
the only implemented backend is for SystemTap probes (<sys/sdt.h>). You
can set a breakpoint using the new "-probe, "-pstap" or "-probe-stap"
options and inspect the probe arguments using the new $_probe_arg family
of convenience variables. You can obtain more information about SystemTap
in <http://sourceware.org/systemtap/>.
* GDB now supports reversible debugging on ARM, it allows you to
debug basic ARM and THUMB instructions, and provides
record/replay support.
* The option "symbol-reloading" has been deleted as it is no longer used.
* Python scripting
** GDB commands implemented in Python can now be put in command class
"gdb.COMMAND_USER".
** The "maint set python print-stack on|off" is now deleted.
** A new class, gdb.printing.FlagEnumerationPrinter, can be used to
apply "flag enum"-style pretty-printing to any enum.
** gdb.lookup_symbol can now work when there is no current frame.
** gdb.Symbol now has a 'line' attribute, holding the line number in
the source at which the symbol was defined.
** gdb.Symbol now has the new attribute 'needs_frame' and the new
method 'value'. The former indicates whether the symbol needs a
frame in order to compute its value, and the latter computes the
symbol's value.
** A new method 'referenced_value' on gdb.Value objects which can
dereference pointer as well as C++ reference values.
** New methods 'global_block' and 'static_block' on gdb.Symtab objects
which return the global and static blocks (as gdb.Block objects),
of the underlying symbol table, respectively.
** New function gdb.find_pc_line which returns the gdb.Symtab_and_line
object associated with a PC value.
** gdb.Symtab_and_line has new attribute 'last' which holds the end
of the address range occupied by code for the current source line.
Initial pass at Go language support. * NEWS: Mention Go. * Makefile.in (SFILES): Add go-exp.y, go-lang.c, go-typeprint.c, go-valprint.c. (COMMON_OBS): Add go-lang.o, go-val.print.o, go-typeprint.o. (YYFILES): Add go-exp.c. (YYOBJ): Add go-exp.o. (local-maintainer-clean): Delete go-exp.c. * defs.h (enum language): Add language_go. * dwarf2read.c: #include "go-lang.h". (fixup_go_packaging): New function. (process_full_comp_unit): Call it when processing Go CUs. (dwarf2_physname): Add Go support. (read_file_scope): Handle missing language spec for GNU Go. (set_cu_language): Handle DW_LANG_Go. * go-exp.y: New file. * go-lang.h: New file. * go-lang.c: New file. * go-typeprint.c: New file. * go-valprint.c: New file. * symtab.c: #include "go-lang.h". (symbol_set_language): Handle language_go. (symbol_find_demangled_name, symbol_set_names): Ditto. (symbol_natural_name, demangle_for_lookup, find_main_name): Ditto. testsuite/ * configure.ac: Create gdb.go/Makefile. * configure: Regenerate. * gdb.base/default.exp: Add "go" to "set language" testing. * gdb.go/Makefile.in: New file. * gdb.go/basic-types.exp: New file. * gdb.go/chan.exp: New file. * gdb.go/chan.go: New file. * gdb.go/handcall.exp: New file. * gdb.go/handcall.go: New file. * gdb.go/hello.exp: New file. * gdb.go/hello.go: New file. * gdb.go/integers.exp: New file. * gdb.go/integers.go: New file. * gdb.go/methods.exp: New file. * gdb.go/methods.go: New file. * gdb.go/package.exp: New file. * gdb.go/package1.go: New file. * gdb.go/package2.go: New file. * gdb.go/print.exp: New file. * gdb.go/strings.exp: New file. * gdb.go/strings.go: New file. * gdb.go/types.exp: New file. * gdb.go/types.go: New file. * gdb.go/unsafe.exp: New file. * gdb.go/unsafe.go: New file. * lib/future.exp: Add Go support. (gdb_find_go, gdb_find_go_linker): New procs. (gdb_default_target_compile): Add Go support. * lib/gdb.exp (skip_go_tests): New proc. * lib/go.exp: New file. doc/ * gdb.texinfo (Supported Languages): Add Go. (Go): New node.
2012-04-25 16:07:23 +02:00
* Go language support.
GDB now supports debugging programs written in the Go programming
language.
* GDBserver now supports stdio connections.
E.g. (gdb) target remote | ssh myhost gdbserver - hello
* The binary "gdbtui" can no longer be built or installed.
Use "gdb -tui" instead.
* GDB will now print "flag" enums specially. A flag enum is one where
all the enumerator values have no bits in common when pairwise
"and"ed. When printing a value whose type is a flag enum, GDB will
show all the constants, e.g., for enum E { ONE = 1, TWO = 2}:
(gdb) print (enum E) 3
$1 = (ONE | TWO)
* The filename part of a linespec will now match trailing components
of a source file name. For example, "break gcc/expr.c:1000" will
now set a breakpoint in build/gcc/expr.c, but not
build/libcpp/expr.c.
* The "info proc" and "generate-core-file" commands will now also
work on remote targets connected to GDBserver on Linux.
* The command "info catch" has been removed. It has been disabled
since December 2007.
* The "catch exception" and "catch assert" commands now accept
a condition at the end of the command, much like the "break"
command does. For instance:
(gdb) catch exception Constraint_Error if Barrier = True
Previously, it was possible to add a condition to such catchpoints,
but it had to be done as a second step, after the catchpoint had been
created, using the "condition" command.
* The "info static-tracepoint-marker" command will now also work on
native Linux targets with in-process agent.
gdb: PR breakpoints/10738 * dwarf2read.c (use_deprecated_index_sections): New global. (struct partial_die_info): New member may_be_inlined. (read_partial_die): Set may_be_inlined where appropriate. (add_partial_subprogram): Add partial symbols for partial DIEs that may be inlined. (new_symbol_full): Add inlined subroutines to the current scope. (write_psymtabs_to_index): Bump version number. (dwarf2_read_index): Read only version 6 indices unless use_deprecated_index_sections is set. * linespec.c (symbol_and_data_callback): New structure. (iterate_inline_only): New function. (iterate_over_all_matching_symtabs): New argument "include_inline". If nonzero, also call the callback for symbols representing inlined subroutines. (lookup_prefix_sym): Pass extra argument to the above. (find_function_symbols): Likewise. (add_matching_symbols_to_info): Likewise. * NEWS: Mention that GDB can now set breakpoints on inlined functions. gdb/doc: PR breakpoints/10738 * gdb.texinfo (Inline Functions): Remove the now-unnecessary @item stating that GDB cannot set breakpoints on inlined functions. (Mode Options): Document --use-deprecated-index-sections. (Index Section Format): Document new index section version format. gdb/testsuite: PR breakpoints/10738 * gdb.opt/inline-break.exp: New file. * gdb.opt/inline-break.c: Likewise. * gdb.dwarf2/inline-break.exp: Likewise. * gdb.dwarf2/inline-break.S: Likewise. * gdb.base/annota1.exp: Cope with old .gdb_index warnings. * gdb.base/async-shell.exp: Likewise. * lib/mi-support.exp (library_loaded_re): Likewise.
2012-03-16 17:47:34 +01:00
* GDB can now set breakpoints on inlined functions.
* The .gdb_index section has been updated to include symbols for
inlined functions. GDB will ignore older .gdb_index sections by
default, which could cause symbol files to be loaded more slowly
until their .gdb_index sections can be recreated. The new command
"set use-deprecated-index-sections on" will cause GDB to use any older
.gdb_index sections it finds. This will restore performance, but the
ability to set breakpoints on inlined functions will be lost in symbol
files with older .gdb_index sections.
gdb: PR breakpoints/10738 * dwarf2read.c (use_deprecated_index_sections): New global. (struct partial_die_info): New member may_be_inlined. (read_partial_die): Set may_be_inlined where appropriate. (add_partial_subprogram): Add partial symbols for partial DIEs that may be inlined. (new_symbol_full): Add inlined subroutines to the current scope. (write_psymtabs_to_index): Bump version number. (dwarf2_read_index): Read only version 6 indices unless use_deprecated_index_sections is set. * linespec.c (symbol_and_data_callback): New structure. (iterate_inline_only): New function. (iterate_over_all_matching_symtabs): New argument "include_inline". If nonzero, also call the callback for symbols representing inlined subroutines. (lookup_prefix_sym): Pass extra argument to the above. (find_function_symbols): Likewise. (add_matching_symbols_to_info): Likewise. * NEWS: Mention that GDB can now set breakpoints on inlined functions. gdb/doc: PR breakpoints/10738 * gdb.texinfo (Inline Functions): Remove the now-unnecessary @item stating that GDB cannot set breakpoints on inlined functions. (Mode Options): Document --use-deprecated-index-sections. (Index Section Format): Document new index section version format. gdb/testsuite: PR breakpoints/10738 * gdb.opt/inline-break.exp: New file. * gdb.opt/inline-break.c: Likewise. * gdb.dwarf2/inline-break.exp: Likewise. * gdb.dwarf2/inline-break.S: Likewise. * gdb.base/annota1.exp: Cope with old .gdb_index warnings. * gdb.base/async-shell.exp: Likewise. * lib/mi-support.exp (library_loaded_re): Likewise.
2012-03-16 17:47:34 +01:00
The .gdb_index section has also been updated to record more information
about each symbol. This speeds up the "info variables", "info functions"
and "info types" commands when used with programs having the .gdb_index
section, as well as speeding up debugging with shared libraries using
the .gdb_index section.
* Ada support for GDB/MI Variable Objects has been added.
* GDB can now support 'breakpoint always-inserted mode' in 'record'
target.
* MI changes
** New command -info-os is the MI equivalent of "info os".
** Output logs ("set logging" and related) now include MI output.
PR symtab/12406: * solib.c (update_solib_list): Update the program space's added_solibs and deleted_solibs fields. * progspace.h (struct program_space) <added_solibs, deleted_solibs>: New fields. (clear_program_space_solib_cache): Declare. * progspace.c (release_program_space): Call clear_program_space_solib_cache. (clear_program_space_solib_cache): New function. * infrun.c (handle_inferior_event) <TARGET_WAITKIND_LOADED>: Call bpstat_stop_status. Use handle_solib_event. * breakpoint.c: Include gdb_regex.h. (print_solib_event): New function. (bpstat_print): Use print_solib_event. (bpstat_stop_status): Add special case for bp_shlib_event. (handle_solib_event): New function. (bpstat_what): Use handle_solib_event. (struct solib_catchpoint): New. (dtor_catch_solib, insert_catch_solib, remove_catch_solib) (breakpoint_hit_catch_solib, check_status_catch_solib) (print_it_catch_solib, print_one_catch_solib) (print_mention_catch_solib, print_recreate_catch_solib): New functions. (catch_solib_breakpoint_ops): New global. (catch_load_or_unload, catch_load_command_1) (catch_unload_command_1): New functions. (internal_bkpt_check_status): Add special case for bp_shlib_event. (internal_bkpt_print_it): Use print_solib_event. (initialize_breakpoint_ops): Initialize catch_solib_breakpoint_ops. (_initialize_breakpoint): Register "catch load" and "catch unload". * breakpoint.h (handle_solib_event): Declare. * NEWS: Add entry for "catch load" and "catch unload". gdb/doc * gdb.texinfo (Set Catchpoints): Document "catch load" and "catch unload". (Files): Mention new catch commands. (GDB/MI Async Records): Likewise. gdb/testsuite * lib/mi-support.exp (mi_expect_stop): Add special case for solib-event. * gdb.base/catch-load-so.c: New file. * gdb.base/catch-load.exp: New file. * gdb.base/catch-load.c: New file. * gdb.base/break-interp.exp (reach_1): Update regexp.
2012-01-24 22:39:18 +01:00
* New commands
** "set use-deprecated-index-sections on|off"
"show use-deprecated-index-sections on|off"
Controls the use of deprecated .gdb_index sections.
PR symtab/12406: * solib.c (update_solib_list): Update the program space's added_solibs and deleted_solibs fields. * progspace.h (struct program_space) <added_solibs, deleted_solibs>: New fields. (clear_program_space_solib_cache): Declare. * progspace.c (release_program_space): Call clear_program_space_solib_cache. (clear_program_space_solib_cache): New function. * infrun.c (handle_inferior_event) <TARGET_WAITKIND_LOADED>: Call bpstat_stop_status. Use handle_solib_event. * breakpoint.c: Include gdb_regex.h. (print_solib_event): New function. (bpstat_print): Use print_solib_event. (bpstat_stop_status): Add special case for bp_shlib_event. (handle_solib_event): New function. (bpstat_what): Use handle_solib_event. (struct solib_catchpoint): New. (dtor_catch_solib, insert_catch_solib, remove_catch_solib) (breakpoint_hit_catch_solib, check_status_catch_solib) (print_it_catch_solib, print_one_catch_solib) (print_mention_catch_solib, print_recreate_catch_solib): New functions. (catch_solib_breakpoint_ops): New global. (catch_load_or_unload, catch_load_command_1) (catch_unload_command_1): New functions. (internal_bkpt_check_status): Add special case for bp_shlib_event. (internal_bkpt_print_it): Use print_solib_event. (initialize_breakpoint_ops): Initialize catch_solib_breakpoint_ops. (_initialize_breakpoint): Register "catch load" and "catch unload". * breakpoint.h (handle_solib_event): Declare. * NEWS: Add entry for "catch load" and "catch unload". gdb/doc * gdb.texinfo (Set Catchpoints): Document "catch load" and "catch unload". (Files): Mention new catch commands. (GDB/MI Async Records): Likewise. gdb/testsuite * lib/mi-support.exp (mi_expect_stop): Add special case for solib-event. * gdb.base/catch-load-so.c: New file. * gdb.base/catch-load.exp: New file. * gdb.base/catch-load.c: New file. * gdb.base/break-interp.exp (reach_1): Update regexp.
2012-01-24 22:39:18 +01:00
** "catch load" and "catch unload" can be used to stop when a shared
library is loaded or unloaded, respectively.
** "enable count" can be used to auto-disable a breakpoint after
several hits.
** "info vtbl" can be used to show the virtual method tables for
C++ and Java objects.
** "explore" and its sub commands "explore value" and "explore type"
can be used to recursively explore values and types of
expressions. These commands are available only if GDB is
configured with '--with-python'.
gdb/ auto-load: Implementation. * NEWS: New descriptions for "info auto-load", "info auto-load gdb-scripts", "info auto-load python-scripts", "info auto-load local-gdbinit" and "info auto-load libthread-db". Deprecate "info auto-load-scripts", "set auto-load-scripts on|off" and "show auto-load-scripts". New description for "set auto-load", "show auto-load", "set auto-load gdb-scripts", "show auto-load gdb-scripts", "set auto-load python-scripts", "show auto-load python-scripts", "set auto-load local-gdbinit", "show auto-load local-gdbinit", "set auto-load libthread-db" and "show auto-load libthread-db". * auto-load.c: Remove include python/python-internal.h. Add includes exceptions.h, cli/cli-script.h, gdbcmd.h, cli/cli-decode.h and cli/cli-setshow.h. (GDB_AUTO_FILE_NAME, source_gdb_script_for_objfile) (auto_load_gdb_scripts, show_auto_load_gdb_scripts): New. (gdbpy_global_auto_load): Rename to ... (global_auto_load): ... here. (auto_load_local_gdbinit, auto_load_local_gdbinit_pathname) (auto_load_local_gdbinit_loaded, show_auto_load_local_gdbinit) (script_language_gdb, source_gdb_script_for_objfile): New. (struct loaded_script): New field language. (hash_loaded_script_entry, eq_loaded_script_entry): Calculate also LANGUAGE. (maybe_add_script): Add parameter language. Drop redundant entry.full_path initialization. Initialize entry.language and (*slot)->language. (auto_load_objfile_script): Change parameter suffix to language. Remove the call of maybe_add_script. Call language->source_script_for_objfile. (load_auto_scripts_for_objfile, struct collect_matching_scripts_data): New. (collect_matching_scripts): Adjust it for struct collect_matching_scripts_data. (auto_load_info_scripts_pattern_nl): New variable. (info_auto_load_scripts): Rename to ... (auto_load_info_scripts): ... here, add parameter language. Adjust it for struct collect_matching_scripts_data. (info_auto_load_gdb_scripts, info_auto_load_local_gdbinit) (set_auto_load_cmd, auto_load_set_cmdlist_get, show_auto_load_cmd) (auto_load_show_cmdlist_get, info_auto_load_cmd) (auto_load_info_cmdlist_get): New. (_initialize_auto_load): Move add_info of "auto-load-scripts" to python/py-auto-load.c. New installment for "set auto-load gdb-scripts", "info auto-load gdb-scripts", "set auto-load local-gdbinit" and "info auto-load local-gdbinit". * auto-load.h (struct script_language): New. (gdbpy_global_auto_load): Rename to ... (global_auto_load): ... here. (auto_load_local_gdbinit, auto_load_local_gdbinit_pathname) (auto_load_local_gdbinit_loaded): New declarations. (maybe_add_script): New parameter language. (auto_load_objfile_script): Change parameter suffix to language. (load_auto_scripts_for_objfile, auto_load_info_scripts_pattern_nl) (auto_load_info_scripts, auto_load_set_cmdlist_get) (auto_load_show_cmdlist_get, auto_load_info_cmdlist_get): New declarations. * linux-thread-db.c: Include auto-load.h and ctype.h. (auto_load_thread_db, show_auto_load_thread_db): New. (struct thread_db_info): New field filename. (delete_thread_db_info): Call xfree for FILENAME. (try_thread_db_load): Initialize FILENAME. (try_thread_db_load_from_pdir, try_thread_db_load_from_dir): Return if !AUTO_LOAD_THREAD_DB. (info_auto_load_libthread_db_compare, info_auto_load_libthread_db): New. (_initialize_thread_db): Install auto_load_thread_db as "set auto-load libthread-db" and install info_auto_load_libthread_db as "info auto-load libthread-db". * main.c (captured_main): Rename gdbpy_global_auto_load to global_auto_load. Initialize AUTO_LOAD_LOCAL_GDBINIT_PATHNAME and AUTO_LOAD_LOCAL_GDBINIT_LOADED. (print_gdb_help): Extend the help for 'local init file'. * python/py-auto-load.c: Remove a comment about gdb scripts extension. (GDBPY_AUTO_SECTION_NAME): Extend the comment it is Python specific. (auto_load_scripts): Rename to ... (auto_load_python_scripts): ... here, update the comment. (gdbpy_load_auto_script_for_objfile): New declaration. (show_auto_load_python_scripts, script_language_python) (gdbpy_load_auto_script_for_objfile): New. (source_section_scripts): Refactor the code. (load_auto_scripts_for_objfile): Rename to ... (gdbpy_load_auto_scripts_for_objfile): ... here, update the auto_load_objfile_script caller, drop GDBPY_GLOBAL_AUTO_LOAD checking. (info_auto_load_python_scripts): New. (gdbpy_initialize_auto_load): New variables cmd and cmd_name. Rename "set auto-load-scripts" to "set auto-load python-scripts". Register "set auto-load-scripts" as its deprecated alias. Register "info auto-load python-scripts". Register "info auto-load-scripts" as its deprecated alias. (load_auto_scripts_for_objfile): Rename to ... (gdbpy_load_auto_scripts_for_objfile): ... here. * python/python.h (load_auto_scripts_for_objfile): Rename to ... (gdbpy_load_auto_scripts_for_objfile): ... here. gdb/doc/ auto-load: Implementation. * gdb.texinfo (Mode Options): New anchor for -nx. (Startup): New anchors for Option -init-eval-command, Home Directory Init File and Init File in the Current Directory during Startup. Mention set auto-load local-gdbinit with a reference. Change the sample code to "set auto-load python-scripts". (Threads): New anchor set libthread-db-search-path. Provide references to libthread_db.so.1 file. (Controlling GDB): New menu item for Auto-loading. (Auto-loading, Init File in the Current Directory) (libthread_db.so.1 file, objfile-gdb.gdb file): New nodes. (Python): Rename the menu item Auto-loading to Python Auto-loading. (Writing a Pretty-Printer, Objfiles In Python): Update the renamed reference. (Auto-loading): Rename to ... (Python Auto-loading): ... here. Change "set auto-load-scripts" to "set auto-load python-scripts", new anchor for it. Change "show auto-load-scripts" to "show auto-load python-scripts", new anchor for it. Change "info auto-load-scripts" to "info auto-load python-scripts", new anchor for it. Change "scripts" to "Python scripts". gdb/testsuite/ auto-load: Implementation. * gdb.base/help.exp (test set height): Increase the height. * gdb.python/py-objfile-script.exp (info auto-load-scripts): Change to ... (info auto-load python-scripts): ... here. * gdb.python/py-section-script.exp (info auto-load-scripts *): Change to ... (info auto-load python-scripts *): ... here.
2012-04-17 17:51:48 +02:00
** "info auto-load" shows status of all kinds of auto-loaded files,
"info auto-load gdb-scripts" shows status of auto-loading GDB canned
sequences of commands files, "info auto-load python-scripts"
shows status of auto-loading Python script files,
"info auto-load local-gdbinit" shows status of loading init file
(.gdbinit) from current directory and "info auto-load libthread-db" shows
status of inferior specific thread debugging shared library loading.
** "info auto-load-scripts", "set auto-load-scripts on|off"
and "show auto-load-scripts" commands have been deprecated, use their
"info auto-load python-scripts", "set auto-load python-scripts on|off"
and "show auto-load python-scripts" counterparts instead.
2012-05-14 Stan Shebs <stan@codesourcery.com> Add dynamic printf. * breakpoint.h (enum bptype): New type bp_dprintf. (struct breakpoint): New field extra_string. (struct breakpoint_ops): Add arg to create_breakpoints_sal. (create_breakpoint): Add extra_string arg. * breakpoint.c (dprintf_breakpoint_ops): New. (is_breakpoint): Add bp_dprintf. (bpstat_what): Add dprintf case. (bptype_string): Ditto. (print_one_breakpoint_location): Ditto. (init_bp_location): Ditto. (bkpt_print_mention): Ditto. (dprintf_style_enums): New array. (dprintf_style): New global. (dprintf_function): New global. (dprintf_channel): New global. (update_dprintf_command_list): New function. (update_dprintf_commands): New function. (init_breakpoint_sal): Add extra_string argument, handle it. (create_breakpoint_sal): Add extra_string argument. (create_breakpoints_sal): Add extra_string argument, update callers. (find_condition_and_thread): Add extra argument. (create_breakpoint): Add extra_string argument, record it. (dprintf_command): New function. (break_command_1): Add arg to create_breakpoint call. (handle_gnu_v3_exceptions): Ditto. (trace_command): Ditto. (ftrace_command): Ditto. (strace_command): Ditto. (bkpt_print_mention): Add dprintf case. (create_breakpoint_sal_default): Add extra_string argument. (_initialize_breakpoint): Add new commands. * mi/mi-cmd-break.c (mi_cmd_break_insert): Add arg to call. * python/py-breakpoint.c (bppy_init): Ditto. * python/py-finishbreakpoint.c (bpfinishpy_init): Ditto. * gdb.texinfo (Dynamic Printf): New subsection. * gdb.base/dprintf.c: New file. * gdb.base/dprintf.exp: New file.
2012-05-14 17:38:41 +02:00
** "dprintf location,format,args..." creates a dynamic printf, which
is basically a breakpoint that does a printf and immediately
resumes your program's execution, so it is like a printf that you
can insert dynamically at runtime instead of at compiletime.
** "set print symbol"
"show print symbol"
Controls whether GDB attempts to display the symbol, if any,
corresponding to addresses it prints. This defaults to "on", but
you can set it to "off" to restore GDB's previous behavior.
* Deprecated commands
** For the Renesas Super-H architecture, the "regs" command has been
deprecated, and "info all-registers" should be used instead.
* New targets
Renesas RL78 rl78-*-elf
HP OpenVMS ia64 ia64-hp-openvms*
* GDBserver supports evaluation of breakpoint conditions. When
support is advertised by GDBserver, GDB may be told to send the
breakpoint conditions in bytecode form to GDBserver. GDBserver
will only report the breakpoint trigger to GDB when its condition
evaluates to true.
* New options
gdb/ * NEWS: Add microMIPS support and "set mips compression", "show mips compression" commands. * mips-tdep.h (mips_isa): New enum. (gdbarch_tdep): Add mips_isa. (mips_pc_is_mips16): Update prototype. (mips_pc_is_mips, mips_pc_is_micromips): New prototypes. * mips-tdep.c (mips_compression_mips16): New variable. (mips_compression_micromips): Likewise. (mips_compression_strings): Likewise. (mips_compression_string): Likewise. (is_mips16_isa, is_micromips_isa): New functions. (is_mips16_addr): Rename to... (is_compact_addr): ... this. (unmake_mips16_addr): Likewise to... (unmake_compact_addr): ... this. (make_mips16_addr): Likewise to... (make_compact_addr): ... this. (is_mips_addr, is_mips16_addr, is_micromips_addr): New functions. (mips_elf_make_msymbol_special): Handle microMIPS code. (msymbol_is_special): Rename to... (msymbol_is_mips16): ... this. (mips_make_symbol_special, mips_pc_is_mips16): Update accordingly. (msymbol_is_mips, msymbol_is_micromips): New functions. (mips16_to_32_reg): Rename to... (mips_reg3_to_reg): ... this. (mips_pc_is_mips, mips_pc_is_micromips): New functions. (mips_pc_isa): Likewise. (mips_read_pc, mips_unwind_pc, mips_write_pc): Handle microMIPS code. (mips_fetch_instruction): Pass return status instead of printing an error message if requested. Handle microMIPS code. Bail out on an invalid ISA. (micromips_op): New macro. (b0s4_imm, b0s5_imm, b0s5_reg, b0s7_imm, b0s10_imm): Likewise. (b1s9_imm, b2s3_cc, b4s2_regl, b5s5_op, b5s5_reg): Likewise. (b6s4_op, b7s3_reg): Likewise. (b0s6_op, b0s11_op, b0s12_imm, b0s16_imm, b0s26_imm): Likewise. (b6s10_ext, b11s5_reg, b12s4_op): Likewise. (mips_insn_size): New function. (mips32_next_pc): Update mips_fetch_instruction call. (micromips_relative_offset7): New function. (micromips_relative_offset10): Likewise. (micromips_relative_offset16): Likewise. (micromips_pc_insn_size): Likewise. (micromips_bc1_pc): Likewise. (micromips_next_pc): Likewise. (unpack_mips16): Update mips_fetch_instruction call. (extended_mips16_next_pc): Update according to change to mips16_to_32_reg. (mips_next_pc): Update mips_pc_is_mips16 call. Handle microMIPS code. (mips16_scan_prologue): Update mips_fetch_instruction call. Update according to change to mips16_to_32_reg. (mips_insn16_frame_sniffer): Update mips_pc_is_mips16 call. (mips_insn16_frame_base_sniffer): Likewise. (micromips_decode_imm9): New function. (micromips_scan_prologue): Likewise. (mips_micro_frame_cache): Likewise. (mips_micro_frame_this_id): Likewise. (mips_micro_frame_prev_register): Likewise. (mips_micro_frame_sniffer): Likewise. (mips_micro_frame_unwind): New variable. (mips_micro_frame_base_address): New function. (mips_micro_frame_base): New variable. (mips_micro_frame_base_sniffer): New function. (mips32_scan_prologue): Update mips_fetch_instruction call. (mips_insn32_frame_sniffer): Check for the standard MIPS ISA rather than for MIPS16. (mips_insn32_frame_base_sniffer): Likewise. (mips_addr_bits_remove): Handle microMIPS code. (deal_with_atomic_sequence): Rename to... (mips_deal_with_atomic_sequence): ... this. Update the type of the variable used to hold an instruction. Remove the ISA bit check. Update mips_fetch_instruction call. (micromips_deal_with_atomic_sequence): New function. (deal_with_atomic_sequence): Likewise. (mips_about_to_return): Handle microMIPS code. Update mips_fetch_instruction call. (heuristic_proc_start): Check for the standard MIPS ISA rather than for MIPS16. Update mips_pc_is_mips16 and mips_fetch_instruction calls. Handle microMIPS code. (mips_push_dummy_code): Handle microMIPS code. (mips_eabi_push_dummy_call): Likewise. (mips_o32_return_value): Update mips_pc_is_mips16 call. (mips_o64_push_dummy_call): Handle microMIPS code. (mips_o64_return_value): Update mips_pc_is_mips16 call. (is_delayed): Remove function. (mips_single_step_through_delay): Replace the call to is_delayed with mips32_instruction_has_delay_slot. Correct MIPS16 handling. Handle microMIPS code. (mips_skip_prologue): Update mips_pc_is_mips16 call. Handle microMIPS code. (mips32_in_function_epilogue_p): Update mips_fetch_instruction call. (micromips_in_function_epilogue_p): New function. (mips16_in_function_epilogue_p): Update mips_fetch_instruction call. (mips_in_function_epilogue_p): Update mips_pc_is_mips16 call. Handle microMIPS. (gdb_print_insn_mips): Likewise. (mips_breakpoint_from_pc): Likewise. (mips_remote_breakpoint_from_pc): New function. (mips32_instruction_has_delay_slot): Simplify making use of the updated mips_fetch_instruction interface. (micromips_instruction_has_delay_slot): New function. (mips16_instruction_has_delay_slot): Simplify making use of the updated mips_fetch_instruction interface. (mips_adjust_breakpoint_address): Check for the standard MIPS ISA rather than for MIPS16 ISA. Update for unmake_compact_addr calls. Handle microMIPS code. (mips_get_mips16_fn_stub_pc): Update mips_fetch_instruction call. (mips_skip_trampoline_code): Handle microMIPS code. (global_mips_compression): New function. (mips_gdbarch_init): Handle the compressed ISA setting from ELF file flags. Register the microMIPS remote breakpoint handler and heuristic frame unwinder. (show_mips_compression): New function. (_initialize_mips_tdep): Add the "set mips compression" and "show mips compression" commands. gdb/doc/ * gdb.texinfo (MIPS): Document "set mips compression" and "show mips compression". (MIPS Breakpoint Kinds): New subsubsection.
2012-05-19 01:46:40 +02:00
set mips compression
show mips compression
Select the compressed ISA encoding used in functions that have no symbol
information available. The encoding can be set to either of:
mips16
micromips
and is updated automatically from ELF file flags if available.
set breakpoint condition-evaluation
show breakpoint condition-evaluation
Control whether breakpoint conditions are evaluated by GDB ("host") or by
GDBserver ("target"). Default option "auto" chooses the most efficient
available mode.
This option can improve debugger efficiency depending on the speed of the
target.
gdb/ auto-load: Implementation. * NEWS: New descriptions for "info auto-load", "info auto-load gdb-scripts", "info auto-load python-scripts", "info auto-load local-gdbinit" and "info auto-load libthread-db". Deprecate "info auto-load-scripts", "set auto-load-scripts on|off" and "show auto-load-scripts". New description for "set auto-load", "show auto-load", "set auto-load gdb-scripts", "show auto-load gdb-scripts", "set auto-load python-scripts", "show auto-load python-scripts", "set auto-load local-gdbinit", "show auto-load local-gdbinit", "set auto-load libthread-db" and "show auto-load libthread-db". * auto-load.c: Remove include python/python-internal.h. Add includes exceptions.h, cli/cli-script.h, gdbcmd.h, cli/cli-decode.h and cli/cli-setshow.h. (GDB_AUTO_FILE_NAME, source_gdb_script_for_objfile) (auto_load_gdb_scripts, show_auto_load_gdb_scripts): New. (gdbpy_global_auto_load): Rename to ... (global_auto_load): ... here. (auto_load_local_gdbinit, auto_load_local_gdbinit_pathname) (auto_load_local_gdbinit_loaded, show_auto_load_local_gdbinit) (script_language_gdb, source_gdb_script_for_objfile): New. (struct loaded_script): New field language. (hash_loaded_script_entry, eq_loaded_script_entry): Calculate also LANGUAGE. (maybe_add_script): Add parameter language. Drop redundant entry.full_path initialization. Initialize entry.language and (*slot)->language. (auto_load_objfile_script): Change parameter suffix to language. Remove the call of maybe_add_script. Call language->source_script_for_objfile. (load_auto_scripts_for_objfile, struct collect_matching_scripts_data): New. (collect_matching_scripts): Adjust it for struct collect_matching_scripts_data. (auto_load_info_scripts_pattern_nl): New variable. (info_auto_load_scripts): Rename to ... (auto_load_info_scripts): ... here, add parameter language. Adjust it for struct collect_matching_scripts_data. (info_auto_load_gdb_scripts, info_auto_load_local_gdbinit) (set_auto_load_cmd, auto_load_set_cmdlist_get, show_auto_load_cmd) (auto_load_show_cmdlist_get, info_auto_load_cmd) (auto_load_info_cmdlist_get): New. (_initialize_auto_load): Move add_info of "auto-load-scripts" to python/py-auto-load.c. New installment for "set auto-load gdb-scripts", "info auto-load gdb-scripts", "set auto-load local-gdbinit" and "info auto-load local-gdbinit". * auto-load.h (struct script_language): New. (gdbpy_global_auto_load): Rename to ... (global_auto_load): ... here. (auto_load_local_gdbinit, auto_load_local_gdbinit_pathname) (auto_load_local_gdbinit_loaded): New declarations. (maybe_add_script): New parameter language. (auto_load_objfile_script): Change parameter suffix to language. (load_auto_scripts_for_objfile, auto_load_info_scripts_pattern_nl) (auto_load_info_scripts, auto_load_set_cmdlist_get) (auto_load_show_cmdlist_get, auto_load_info_cmdlist_get): New declarations. * linux-thread-db.c: Include auto-load.h and ctype.h. (auto_load_thread_db, show_auto_load_thread_db): New. (struct thread_db_info): New field filename. (delete_thread_db_info): Call xfree for FILENAME. (try_thread_db_load): Initialize FILENAME. (try_thread_db_load_from_pdir, try_thread_db_load_from_dir): Return if !AUTO_LOAD_THREAD_DB. (info_auto_load_libthread_db_compare, info_auto_load_libthread_db): New. (_initialize_thread_db): Install auto_load_thread_db as "set auto-load libthread-db" and install info_auto_load_libthread_db as "info auto-load libthread-db". * main.c (captured_main): Rename gdbpy_global_auto_load to global_auto_load. Initialize AUTO_LOAD_LOCAL_GDBINIT_PATHNAME and AUTO_LOAD_LOCAL_GDBINIT_LOADED. (print_gdb_help): Extend the help for 'local init file'. * python/py-auto-load.c: Remove a comment about gdb scripts extension. (GDBPY_AUTO_SECTION_NAME): Extend the comment it is Python specific. (auto_load_scripts): Rename to ... (auto_load_python_scripts): ... here, update the comment. (gdbpy_load_auto_script_for_objfile): New declaration. (show_auto_load_python_scripts, script_language_python) (gdbpy_load_auto_script_for_objfile): New. (source_section_scripts): Refactor the code. (load_auto_scripts_for_objfile): Rename to ... (gdbpy_load_auto_scripts_for_objfile): ... here, update the auto_load_objfile_script caller, drop GDBPY_GLOBAL_AUTO_LOAD checking. (info_auto_load_python_scripts): New. (gdbpy_initialize_auto_load): New variables cmd and cmd_name. Rename "set auto-load-scripts" to "set auto-load python-scripts". Register "set auto-load-scripts" as its deprecated alias. Register "info auto-load python-scripts". Register "info auto-load-scripts" as its deprecated alias. (load_auto_scripts_for_objfile): Rename to ... (gdbpy_load_auto_scripts_for_objfile): ... here. * python/python.h (load_auto_scripts_for_objfile): Rename to ... (gdbpy_load_auto_scripts_for_objfile): ... here. gdb/doc/ auto-load: Implementation. * gdb.texinfo (Mode Options): New anchor for -nx. (Startup): New anchors for Option -init-eval-command, Home Directory Init File and Init File in the Current Directory during Startup. Mention set auto-load local-gdbinit with a reference. Change the sample code to "set auto-load python-scripts". (Threads): New anchor set libthread-db-search-path. Provide references to libthread_db.so.1 file. (Controlling GDB): New menu item for Auto-loading. (Auto-loading, Init File in the Current Directory) (libthread_db.so.1 file, objfile-gdb.gdb file): New nodes. (Python): Rename the menu item Auto-loading to Python Auto-loading. (Writing a Pretty-Printer, Objfiles In Python): Update the renamed reference. (Auto-loading): Rename to ... (Python Auto-loading): ... here. Change "set auto-load-scripts" to "set auto-load python-scripts", new anchor for it. Change "show auto-load-scripts" to "show auto-load python-scripts", new anchor for it. Change "info auto-load-scripts" to "info auto-load python-scripts", new anchor for it. Change "scripts" to "Python scripts". gdb/testsuite/ auto-load: Implementation. * gdb.base/help.exp (test set height): Increase the height. * gdb.python/py-objfile-script.exp (info auto-load-scripts): Change to ... (info auto-load python-scripts): ... here. * gdb.python/py-section-script.exp (info auto-load-scripts *): Change to ... (info auto-load python-scripts *): ... here.
2012-04-17 17:51:48 +02:00
set auto-load off
Disable auto-loading globally.
show auto-load
Show auto-loading setting of all kinds of auto-loaded files.
set auto-load gdb-scripts on|off
show auto-load gdb-scripts
Control auto-loading of GDB canned sequences of commands files.
set auto-load python-scripts on|off
show auto-load python-scripts
Control auto-loading of Python script files.
set auto-load local-gdbinit on|off
show auto-load local-gdbinit
Control loading of init file (.gdbinit) from current directory.
set auto-load libthread-db on|off
show auto-load libthread-db
Control auto-loading of inferior specific thread debugging shared library.
set auto-load scripts-directory <dir1>[:<dir2>...]
show auto-load scripts-directory
Set a list of directories from which to load auto-loaded scripts.
Automatically loaded Python scripts and GDB scripts are located in one
of the directories listed by this option.
The delimiter (':' above) may differ according to the host platform.
gdb/ New option "set auto-load safe-path". * NEWS: New commands "set auto-load safe-path" and "show auto-load safe-path". * auto-load.c: Include gdb_vecs.h, readline/tilde.h and completer.h. (auto_load_safe_path, auto_load_safe_path_vec) (auto_load_safe_path_vec_update, set_auto_load_safe_path) (show_auto_load_safe_path, add_auto_load_safe_path, filename_is_in_dir) (filename_is_in_auto_load_safe_path_vec, file_is_auto_load_safe): New. (source_gdb_script_for_objfile): New variable is_safe. Call file_is_auto_load_safe. Return if it is not. (struct loaded_script): New field loaded. (maybe_add_script): Add parameter loaded. Initialize SLOT with it. (print_script): Use LOADED indicator instead of FULL_PATH. Change output "Missing" to "No". (_initialize_auto_load): New variable cmd. Initialize auto_load_safe_path. Register "set auto-load safe-path", "show auto-load safe-path" and "add-auto-load-safe-path". * auto-load.h (maybe_add_script): Add parameter loaded. (file_is_auto_load_safe): New declaration. * config.in: Regenerate. * configure: Regenerate. * configure.ac: New parameters --with-auto-load-safe-path and --without-auto-load-safe-path. * linux-thread-db.c (try_thread_db_load_from_pdir_1) (try_thread_db_load_from_dir): Check file_is_auto_load_safe first. * main.c (captured_main): Check file_is_auto_load_safe for LOCAL_GDBINIT. * python/py-auto-load.c (gdbpy_load_auto_script_for_objfile): New variable is_safe. Call file_is_auto_load_safe. Return if it is not. (source_section_scripts): Call file_is_auto_load_safe. Return if it is not. gdb/doc/ New option "set auto-load safe-path". * gdb.texinfo (Auto-loading): Extend the "show auto-load" and "info auto-load" examples for safe-path. Put there also references for "set auto-load safe-path" and "show auto-load safe-path". New menu item for Auto-loading safe path. (Auto-loading safe path): New node. (Python Auto-loading): Update the expected output from "Missing" to "No". gdb/testsuite/ New option "set auto-load safe-path". * gdb.python/py-objfile-script.exp (set auto-load safe-path): New. * gdb.python/py-section-script.exp (set auto-load safe-path): New.
2012-04-17 17:54:35 +02:00
set auto-load safe-path <dir1>[:<dir2>...]
show auto-load safe-path
Set a list of directories from which it is safe to auto-load files.
The delimiter (':' above) may differ according to the host platform.
set debug auto-load on|off
show debug auto-load
Control display of debugging info for auto-loading the files above.
Add target-side support for dynamic printf. * NEWS: Mention the additional style. * breakpoint.h (struct bp_target_info): New fields tcommands, persist. (struct bp_location): New field cmd_bytecode. * breakpoint.c: Include format.h. (disconnected_dprintf): New global. (parse_cmd_to_aexpr): New function. (build_target_command_list): New function. (insert_bp_location): Call it. (remove_breakpoints_pid): Skip dprintf breakpoints. (print_one_breakpoint_location): Ditto. (dprintf_style_agent): New global. (dprintf_style_enums): Add dprintf_style_agent. (update_dprintf_command_list): Add agent case. (agent_printf_command): New function. (_initialize_breakpoint): Add new commands. * common/ax.def (printf): New bytecode. * ax.h (ax_string): Declare. * ax-gdb.h (gen_printf): Declare. * ax-gdb.c: Include cli-utils.h, format.h. (gen_printf): New function. (maint_agent_print_command): New function. (_initialize_ax_gdb): Add maint agent-printf command. * ax-general.c (ax_string): New function. (ax_print): Add printf disassembly. * Makefile.in (SFILES): Add format.c (COMMON_OBS): Add format.o. * common/format.h: New file. * common/format.c: New file. * printcmd.c: Include format.h. (ui_printf): Call parse_format_string. * remote.c (remote_state): New field breakpoint_commands. (PACKET_BreakpointCommands): New enum. (remote_breakpoint_commands_feature): New function. (remote_protocol_features): Add new BreakpointCommands entry. (remote_can_run_breakpoint_commands): New function. (remote_add_target_side_commands): New function. (remote_insert_breakpoint): Call it. (remote_insert_hw_breakpoint): Ditto. (_initialize_remote): Add new packet configuration for target-side breakpoint commands. * target.h (struct target_ops): New field to_can_run_breakpoint_commands. (target_can_run_breakpoint_commands): New macro. * target.c (update_current_target): Handle to_can_run_breakpoint_commands. [gdbserver] * Makefile.in (WARN_CFLAGS_NO_FORMAT): Define. (ax.o): Add it to build rule. (ax-ipa.o): Ditto. (OBS): Add format.o. (IPA_OBS): Add format.o. * server.c (handle_query): Claim support for breakpoint commands. (process_point_options): Add command case. (process_serial_event): Leave running if there are printfs in effect. * mem-break.h (any_persistent_commands): Declare. (add_breakpoint_commands): Declare. (gdb_no_commands_at_breakpoint): Declare. (run_breakpoint_commands): Declare. * mem-break.c (struct point_command_list): New struct. (struct breakpoint): New field command_list. (any_persistent_commands): New function. (add_commands_to_breakpoint): New function. (add_breakpoint_commands): New function. (gdb_no_commands_at_breakpoint): New function. (run_breakpoint_commands): New function. * linux-low.c (linux_wait_1): Test for and run breakpoint commands locally. * ax.c: Include format.h. (ax_printf): New function. (gdb_eval_agent_expr): Add printf opcode. [doc] * gdb.texinfo (Dynamic Printf): Mention agent style and disconnected dprintf. (Maintenance Commands): Describe maint agent-printf. (General Query Packets): Mention BreakpointCommands feature. (Packets): Document commands extension to Z0 packet. * agentexpr.texi (Bytecode Descriptions): Document printf bytecode. [testsuite] * gdb.base/dprintf.exp: Add agent style tests.
2012-07-02 17:29:39 +02:00
set dprintf-style gdb|call|agent
2012-05-14 Stan Shebs <stan@codesourcery.com> Add dynamic printf. * breakpoint.h (enum bptype): New type bp_dprintf. (struct breakpoint): New field extra_string. (struct breakpoint_ops): Add arg to create_breakpoints_sal. (create_breakpoint): Add extra_string arg. * breakpoint.c (dprintf_breakpoint_ops): New. (is_breakpoint): Add bp_dprintf. (bpstat_what): Add dprintf case. (bptype_string): Ditto. (print_one_breakpoint_location): Ditto. (init_bp_location): Ditto. (bkpt_print_mention): Ditto. (dprintf_style_enums): New array. (dprintf_style): New global. (dprintf_function): New global. (dprintf_channel): New global. (update_dprintf_command_list): New function. (update_dprintf_commands): New function. (init_breakpoint_sal): Add extra_string argument, handle it. (create_breakpoint_sal): Add extra_string argument. (create_breakpoints_sal): Add extra_string argument, update callers. (find_condition_and_thread): Add extra argument. (create_breakpoint): Add extra_string argument, record it. (dprintf_command): New function. (break_command_1): Add arg to create_breakpoint call. (handle_gnu_v3_exceptions): Ditto. (trace_command): Ditto. (ftrace_command): Ditto. (strace_command): Ditto. (bkpt_print_mention): Add dprintf case. (create_breakpoint_sal_default): Add extra_string argument. (_initialize_breakpoint): Add new commands. * mi/mi-cmd-break.c (mi_cmd_break_insert): Add arg to call. * python/py-breakpoint.c (bppy_init): Ditto. * python/py-finishbreakpoint.c (bpfinishpy_init): Ditto. * gdb.texinfo (Dynamic Printf): New subsection. * gdb.base/dprintf.c: New file. * gdb.base/dprintf.exp: New file.
2012-05-14 17:38:41 +02:00
show dprintf-style
Add target-side support for dynamic printf. * NEWS: Mention the additional style. * breakpoint.h (struct bp_target_info): New fields tcommands, persist. (struct bp_location): New field cmd_bytecode. * breakpoint.c: Include format.h. (disconnected_dprintf): New global. (parse_cmd_to_aexpr): New function. (build_target_command_list): New function. (insert_bp_location): Call it. (remove_breakpoints_pid): Skip dprintf breakpoints. (print_one_breakpoint_location): Ditto. (dprintf_style_agent): New global. (dprintf_style_enums): Add dprintf_style_agent. (update_dprintf_command_list): Add agent case. (agent_printf_command): New function. (_initialize_breakpoint): Add new commands. * common/ax.def (printf): New bytecode. * ax.h (ax_string): Declare. * ax-gdb.h (gen_printf): Declare. * ax-gdb.c: Include cli-utils.h, format.h. (gen_printf): New function. (maint_agent_print_command): New function. (_initialize_ax_gdb): Add maint agent-printf command. * ax-general.c (ax_string): New function. (ax_print): Add printf disassembly. * Makefile.in (SFILES): Add format.c (COMMON_OBS): Add format.o. * common/format.h: New file. * common/format.c: New file. * printcmd.c: Include format.h. (ui_printf): Call parse_format_string. * remote.c (remote_state): New field breakpoint_commands. (PACKET_BreakpointCommands): New enum. (remote_breakpoint_commands_feature): New function. (remote_protocol_features): Add new BreakpointCommands entry. (remote_can_run_breakpoint_commands): New function. (remote_add_target_side_commands): New function. (remote_insert_breakpoint): Call it. (remote_insert_hw_breakpoint): Ditto. (_initialize_remote): Add new packet configuration for target-side breakpoint commands. * target.h (struct target_ops): New field to_can_run_breakpoint_commands. (target_can_run_breakpoint_commands): New macro. * target.c (update_current_target): Handle to_can_run_breakpoint_commands. [gdbserver] * Makefile.in (WARN_CFLAGS_NO_FORMAT): Define. (ax.o): Add it to build rule. (ax-ipa.o): Ditto. (OBS): Add format.o. (IPA_OBS): Add format.o. * server.c (handle_query): Claim support for breakpoint commands. (process_point_options): Add command case. (process_serial_event): Leave running if there are printfs in effect. * mem-break.h (any_persistent_commands): Declare. (add_breakpoint_commands): Declare. (gdb_no_commands_at_breakpoint): Declare. (run_breakpoint_commands): Declare. * mem-break.c (struct point_command_list): New struct. (struct breakpoint): New field command_list. (any_persistent_commands): New function. (add_commands_to_breakpoint): New function. (add_breakpoint_commands): New function. (gdb_no_commands_at_breakpoint): New function. (run_breakpoint_commands): New function. * linux-low.c (linux_wait_1): Test for and run breakpoint commands locally. * ax.c: Include format.h. (ax_printf): New function. (gdb_eval_agent_expr): Add printf opcode. [doc] * gdb.texinfo (Dynamic Printf): Mention agent style and disconnected dprintf. (Maintenance Commands): Describe maint agent-printf. (General Query Packets): Mention BreakpointCommands feature. (Packets): Document commands extension to Z0 packet. * agentexpr.texi (Bytecode Descriptions): Document printf bytecode. [testsuite] * gdb.base/dprintf.exp: Add agent style tests.
2012-07-02 17:29:39 +02:00
Control the way in which a dynamic printf is performed; "gdb"
requests a GDB printf command, while "call" causes dprintf to call a
function in the inferior. "agent" requests that the target agent
(such as GDBserver) do the printing.
2012-05-14 Stan Shebs <stan@codesourcery.com> Add dynamic printf. * breakpoint.h (enum bptype): New type bp_dprintf. (struct breakpoint): New field extra_string. (struct breakpoint_ops): Add arg to create_breakpoints_sal. (create_breakpoint): Add extra_string arg. * breakpoint.c (dprintf_breakpoint_ops): New. (is_breakpoint): Add bp_dprintf. (bpstat_what): Add dprintf case. (bptype_string): Ditto. (print_one_breakpoint_location): Ditto. (init_bp_location): Ditto. (bkpt_print_mention): Ditto. (dprintf_style_enums): New array. (dprintf_style): New global. (dprintf_function): New global. (dprintf_channel): New global. (update_dprintf_command_list): New function. (update_dprintf_commands): New function. (init_breakpoint_sal): Add extra_string argument, handle it. (create_breakpoint_sal): Add extra_string argument. (create_breakpoints_sal): Add extra_string argument, update callers. (find_condition_and_thread): Add extra argument. (create_breakpoint): Add extra_string argument, record it. (dprintf_command): New function. (break_command_1): Add arg to create_breakpoint call. (handle_gnu_v3_exceptions): Ditto. (trace_command): Ditto. (ftrace_command): Ditto. (strace_command): Ditto. (bkpt_print_mention): Add dprintf case. (create_breakpoint_sal_default): Add extra_string argument. (_initialize_breakpoint): Add new commands. * mi/mi-cmd-break.c (mi_cmd_break_insert): Add arg to call. * python/py-breakpoint.c (bppy_init): Ditto. * python/py-finishbreakpoint.c (bpfinishpy_init): Ditto. * gdb.texinfo (Dynamic Printf): New subsection. * gdb.base/dprintf.c: New file. * gdb.base/dprintf.exp: New file.
2012-05-14 17:38:41 +02:00
set dprintf-function <expr>
show dprintf-function
set dprintf-channel <expr>
show dprintf-channel
Set the function and optional first argument to the call when using
the "call" style of dynamic printf.
Add target-side support for dynamic printf. * NEWS: Mention the additional style. * breakpoint.h (struct bp_target_info): New fields tcommands, persist. (struct bp_location): New field cmd_bytecode. * breakpoint.c: Include format.h. (disconnected_dprintf): New global. (parse_cmd_to_aexpr): New function. (build_target_command_list): New function. (insert_bp_location): Call it. (remove_breakpoints_pid): Skip dprintf breakpoints. (print_one_breakpoint_location): Ditto. (dprintf_style_agent): New global. (dprintf_style_enums): Add dprintf_style_agent. (update_dprintf_command_list): Add agent case. (agent_printf_command): New function. (_initialize_breakpoint): Add new commands. * common/ax.def (printf): New bytecode. * ax.h (ax_string): Declare. * ax-gdb.h (gen_printf): Declare. * ax-gdb.c: Include cli-utils.h, format.h. (gen_printf): New function. (maint_agent_print_command): New function. (_initialize_ax_gdb): Add maint agent-printf command. * ax-general.c (ax_string): New function. (ax_print): Add printf disassembly. * Makefile.in (SFILES): Add format.c (COMMON_OBS): Add format.o. * common/format.h: New file. * common/format.c: New file. * printcmd.c: Include format.h. (ui_printf): Call parse_format_string. * remote.c (remote_state): New field breakpoint_commands. (PACKET_BreakpointCommands): New enum. (remote_breakpoint_commands_feature): New function. (remote_protocol_features): Add new BreakpointCommands entry. (remote_can_run_breakpoint_commands): New function. (remote_add_target_side_commands): New function. (remote_insert_breakpoint): Call it. (remote_insert_hw_breakpoint): Ditto. (_initialize_remote): Add new packet configuration for target-side breakpoint commands. * target.h (struct target_ops): New field to_can_run_breakpoint_commands. (target_can_run_breakpoint_commands): New macro. * target.c (update_current_target): Handle to_can_run_breakpoint_commands. [gdbserver] * Makefile.in (WARN_CFLAGS_NO_FORMAT): Define. (ax.o): Add it to build rule. (ax-ipa.o): Ditto. (OBS): Add format.o. (IPA_OBS): Add format.o. * server.c (handle_query): Claim support for breakpoint commands. (process_point_options): Add command case. (process_serial_event): Leave running if there are printfs in effect. * mem-break.h (any_persistent_commands): Declare. (add_breakpoint_commands): Declare. (gdb_no_commands_at_breakpoint): Declare. (run_breakpoint_commands): Declare. * mem-break.c (struct point_command_list): New struct. (struct breakpoint): New field command_list. (any_persistent_commands): New function. (add_commands_to_breakpoint): New function. (add_breakpoint_commands): New function. (gdb_no_commands_at_breakpoint): New function. (run_breakpoint_commands): New function. * linux-low.c (linux_wait_1): Test for and run breakpoint commands locally. * ax.c: Include format.h. (ax_printf): New function. (gdb_eval_agent_expr): Add printf opcode. [doc] * gdb.texinfo (Dynamic Printf): Mention agent style and disconnected dprintf. (Maintenance Commands): Describe maint agent-printf. (General Query Packets): Mention BreakpointCommands feature. (Packets): Document commands extension to Z0 packet. * agentexpr.texi (Bytecode Descriptions): Document printf bytecode. [testsuite] * gdb.base/dprintf.exp: Add agent style tests.
2012-07-02 17:29:39 +02:00
set disconnected-dprintf on|off
show disconnected-dprintf
Control whether agent-style dynamic printfs continue to be in effect
after GDB disconnects.
* New configure options
--with-auto-load-dir
Configure default value for the 'set auto-load scripts-directory'
setting above. It defaults to '$debugdir:$datadir/auto-load',
$debugdir representing global debugging info directories (available
via 'show debug-file-directory') and $datadir representing GDB's data
directory (available via 'show data-directory').
--with-auto-load-safe-path
Configure default value for the 'set auto-load safe-path' setting
above. It defaults to the --with-auto-load-dir setting.
--without-auto-load-safe-path
Set 'set auto-load safe-path' to '/', effectively disabling this
security feature.
* New remote packets
z0/z1 conditional breakpoints extension
The z0/z1 breakpoint insertion packets have been extended to carry
a list of conditional expressions over to the remote stub depending on the
condition evaluation mode. The use of this extension can be controlled
via the "set remote conditional-breakpoints-packet" command.
QProgramSignals:
Specify the signals which the remote stub may pass to the debugged
program without GDB involvement.
* New command line options
--init-command=FILE, -ix Like --command, -x but execute it
before loading inferior.
--init-eval-command=COMMAND, -iex Like --eval-command=COMMAND, -ex but
execute it before loading inferior.
*** Changes in GDB 7.4
the "ambiguous linespec" series gdb 2011-12-06 Joel Brobecker <brobecker@acacore.com> * language.h (struct language_defn): Add new component la_symbol_name_compare. * symfile.h (struct quick_symbol_functions): Update the profile of parameter "name_matcher" for the expand_symtabs_matching method. Update the documentation accordingly. * ada-lang.h (ada_name_for_lookup): Add declaration. * ada-lang.c (ada_name_for_lookup): New function, extracted out from ada_iterate_over_symbols. (ada_iterate_over_symbols): Do not encode symbol name anymore. (ada_expand_partial_symbol_name): Adjust profile. (ada_language_defn): Add value for la_symbol_name_compare field. * linespec.c: #include "ada-lang.h". (iterate_name_matcher): Add language parameter. Replace call to strcmp_iw by call to language->la_symbol_name_compare. (decode_variable): Encode COPY if current language is Ada. * dwarf2read.c (dw2_expand_symtabs_matching): Adjust profile of name_matcher parameter. Adjust call to name_matcher. * psymtab.c (expand_symtabs_matching_via_partial): Likewise. (expand_partial_symbol_names): Update profile of parameter "fun". * psymtab.h (expand_partial_symbol_names): Update profile of parameter "fun". * symtab.c (demangle_for_lookup): Update function documentation. (search_symbols_name_matches): Add language parameter. (expand_partial_symbol_name): Likewise. * c-lang.c (c_language_defn, cplus_language_defn) (asm_language_defn, minimal_language_defn): Add value for la_symbol_name_compare field. * d-lang.c (d_language_defn): Likewise. * f-lang.c (f_language_defn): Ditto. * jv-lang.c (java_language_defn): Ditto. * m2-lang.c (m2_language_defn): Ditto. * objc-lang.c (objc_language_defn): Ditto. * opencl-lang.c (opencl_language_defn): Ditto. * p-lang.c (pascal_language_defn): Ditto. * language.c (unknown_language_defn, auto_language_defn) (local_language_defn): Ditto. 2011-12-06 Tom Tromey <tromey@redhat.com> * linespec.c (iterate_over_all_matching_symtabs): Use LA_ITERATE_OVER_SYMBOLS. (lookup_prefix_sym, add_matching_symbols_to_info): Likewise. (find_function_symbols, decode_variable): Remove Ada special case. * language.h (struct language_defn) <la_iterate_over_symbols>: New field. (LA_ITERATE_OVER_SYMBOLS): New macro. * language.c (unknown_language_defn, auto_language_defn) (local_language_defn): Update. * c-lang.c (c_language_defn, cplus_language_defn) (asm_language_defn, minimal_language_defn): Update. * d-lang.c (d_language_defn): Update. * f-lang.c (f_language_defn): Update. * jv-lang.c (java_language_defn): Update. * m2-lang.c (m2_language_defn): Update. * objc-lang.c (objc_language_defn): Update. * opencl-lang.c (opencl_language_defn): Update. * p-lang.c (pascal_language_defn): Update. * ada-lang.c (ada_iterate_over_symbols): New function. (ada_language_defn): Update. 2011-12-06 Tom Tromey <tromey@redhat.com> Joel Brobecker <brobecker@acacore.com> PR breakpoints/13105, PR objc/8341, PR objc/8343, PR objc/8366, PR objc/8535, PR breakpoints/11657, PR breakpoints/11970, PR breakpoints/12023, PR breakpoints/12334, PR breakpoints/12856, PR shlibs/8929, PR shlibs/7393: * python/py-type.c (compare_maybe_null_strings): Rename from compare_strings. (check_types_equal): Update. * utils.c (compare_strings): New function. * tui/tui-winsource.c (tui_update_breakpoint_info): Update for location changes. * tracepoint.c (scope_info): Update. (trace_find_line_command): Use DECODE_LINE_FUNFIRSTLINE. * symtab.h (iterate_over_minimal_symbols) (iterate_over_some_symtabs, iterate_over_symtabs) (find_pcs_for_symtab_line, iterate_over_symbols) (demangle_for_lookup): Declare. (expand_line_sal): Remove. * symtab.c (iterate_over_some_symtabs, iterate_over_symtabs) (lookup_symtab_callback): New functions. (lookup_symtab): Rewrite. (demangle_for_lookup): New function, extract from lookup_symbol_in_language. (lookup_symbol_in_language): Use it. (iterate_over_symbols): New function. (find_line_symtab): Update. (find_pcs_for_symtab_line): New functions. (find_line_common): Add 'start' argument. (decode_line_spec): Update. Change argument to 'flags', change interpretation. (append_expanded_sal): Remove. (append_exact_match_to_sals): Remove. (expand_line_sal): Remove. * symfile.h (struct quick_symbol_functions) <lookup_symtab>: Remove. <map_symtabs_matching_filename>: New field. * stack.c (func_command): Only look in the current program space. Use DECODE_LINE_FUNFIRSTLINE. * source.c (line_info): Set pspace on sal. Check program space in the loop. Use DECODE_LINE_LIST_MODE. (select_source_symtab): Use DECODE_LINE_FUNFIRSTLINE. * solib-target.c: Remove DEF_VEC_I(CORE_ADDR). * python/python.c (gdbpy_decode_line): Update. * psymtab.c (partial_map_expand_apply): New function. (partial_map_symtabs_matching_filename): Rename from lookup_partial_symbol. Update arguments. (lookup_symtab_via_partial_symtab): Remove. (psym_functions): Update. * objc-lang.h (parse_selector, parse_method): Don't declare. (find_imps): Update. * objc-lang.c (parse_selector, parse_method): Now static. (find_methods): Change arguments. Fill in a vector of symbol names. (uniquify_strings): New function. (find_imps): Change arguments. * minsyms.c (iterate_over_minimal_symbols): New function. * linespec.h (enum decode_line_flags): New. (struct linespec_sals): New. (struct linespec_result) <canonical>: Remove. <pre_expanded, addr_string, sals>: New fields. (destroy_linespec_result, make_cleanup_destroy_linespec_result) (decode_line_full): Declare. (decode_line_1): Update. * linespec.c (struct address_entry, struct linespec_state, struct collect_info): New types. (add_sal_to_sals_basic, add_sal_to_sals, hash_address_entry) (eq_address_entry, maybe_add_address): New functions. (total_number_of_methods): Remove. (iterate_name_matcher, iterate_over_all_matching_symtabs): New functions. (find_methods): Change arguments. Don't canonicalize input. Simplify logic. (add_matching_methods, add_constructors) (build_canonical_line_spec): Remove. (filter_results, convert_results_to_lsals): New functions. (decode_line_2): Change arguments. Rewrite for new data structures. (decode_line_internal): Rename from decode_line_1. Change arguments. Add cleanups. Update for new data structures. (linespec_state_constructor, linespec_state_destructor) (decode_line_full, decode_line_1): New functions. (decode_indirect): Change arguments. Update. (locate_first_half): Use skip_spaces. (decode_objc): Change arguments. Update for new data structures. Simplify logic. (decode_compound): Change arguments. Add cleanups. Remove fallback code, replace with error. (struct decode_compound_collector): New type. (collect_one_symbol): New function. (lookup_prefix_sym): Change arguments. Update. (compare_symbol_name, add_all_symbol_names_from_pspace) (find_superclass_methods ): New functions. (find_method): Rewrite. (struct symtab_collector): New type. (add_symtabs_to_list, collect_symtabs_from_filename): New functions. (symtabs_from_filename): Change API. Rename from symtab_from_filename. (collect_function_symbols): New function. (find_function_symbols): Change API. Rename from find_function_symbol. Rewrite. (decode_all_digits): Change arguments. Rewrite. (decode_dollar): Change arguments. Use decode_variable. (decode_label): Change arguments. Rewrite. (collect_symbols): New function. (minsym_found): Change arguments. Rewrite. (check_minsym, search_minsyms_for_name) (add_matching_symbols_to_info): New function. (decode_variable): Change arguments. Iterate over all symbols. (symbol_found): Remove. (symbol_to_sal): New function. (init_linespec_result, destroy_linespec_result) (cleanup_linespec_result, make_cleanup_destroy_linespec_result): New functions. (decode_digits_list_mode, decode_digits_ordinary): New functions. * dwarf2read.c (dw2_map_expand_apply): New function. (dw2_map_symtabs_matching_filename): Rename from dw2_lookup_symtab. Change arguments. (dwarf2_gdb_index_functions): Update. * dwarf2loc.c: Remove DEF_VEC_I(CORE_ADDR). * defs.h (compare_strings): Declare. * cli/cli-cmds.c (compare_strings): Move to utils.c. (edit_command, list_command): Use DECODE_LINE_LIST_MODE. Call filter_sals. (compare_symtabs, filter_sals): New functions. * breakpoint.h (struct bp_location) <line_number, source_file>: New fields. (struct breakpoint) <line_number, source_file>: Remove. <filter>: New field. * breakpoint.c (print_breakpoint_location, init_raw_breakpoint) (momentary_breakpoint_from_master, add_location_to_breakpoint): Update for changes to locations. (init_breakpoint_sal): Add 'filter' argument. Set 'filter' on breakpoint. (create_breakpoint_sal): Add 'filter' argument. (remove_sal, expand_line_sal_maybe): Remove. (create_breakpoints_sal): Remove 'sals' argument. Handle pre-expanded sals and the filter. (parse_breakpoint_sals): Use decode_line_full. (check_fast_tracepoint_sals): Use get_sal_arch. (create_breakpoint): Create a linespec_sals. Update. (break_range_command): Use decode_line_full. Update. (until_break_command): Update. (clear_command): Update match conditions for linespec.c changes. Use DECODE_LINE_LIST_MODE. (say_where): Update for changes to locations. (bp_location_dtor): Free 'source_file'. (base_breakpoint_dtor): Free 'filter'. Don't free 'source_file'. (update_static_tracepoint): Update for changes to locations. (update_breakpoint_locations): Disable ranged breakpoint if too many locations match. Update. (addr_string_to_sals): Use decode_line_full. Resolve all sal PCs. (breakpoint_re_set_default): Don't call expand_line_sal_maybe. (decode_line_spec_1): Update. Change argument name to 'flags', change interpretation. * block.h (block_containing_function): Declare. * block.c (block_containing_function): New function. * skip.c (skip_function_command): Update. (skip_re_set): Update. * infcmd.c (jump_command): Use DECODE_LINE_FUNFIRSTLINE. * mi/mi-main.c (mi_cmd_trace_find): Use DECODE_LINE_FUNFIRSTLINE. * NEWS: Add entry. 2011-12-06 Tom Tromey <tromey@redhat.com> * elfread.c (elf_gnu_ifunc_resolver_return_stop): Allow breakpoint's pspace to be NULL. * breakpoint.h (struct breakpoint) <pspace>: Update comment. * breakpoint.c (init_raw_breakpoint): Conditionally set breakpoint's pspace. (init_breakpoint_sal): Don't set breakpoint's pspace. (prepare_re_set_context): Conditionally switch program space. (addr_string_to_sals): Check executing_startup on location's program space. 2011-12-06 Tom Tromey <tromey@redhat.com> * breakpoint.h (enum enable_state) <bp_startup_disabled>: Remove. * breakpoint.c (should_be_inserted): Explicitly check if program space is executing startup. (describe_other_breakpoints): Update. (disable_breakpoints_before_startup): Change executing_startup earlier. Remove loop. (enable_breakpoints_after_startup): Likewise. (init_breakpoint_sal): Don't use bp_startup_disabled. (create_breakpoint): Don't use bp_startup_disabled. (update_global_location_list): Use should_be_inserted. (bkpt_re_set): Update. gdb/testsuite 2011-12-06 Joel Brobecker <brobecker@acacore.com> * gdb.ada/fullname_bp.exp: Add tests for other valid linespecs involving a fully qualified function name. 2011-12-06 Tom Tromey <tromey@redhat.com> * gdb.ada/homonym.exp: Add three breakpoint tests. 2011-12-06 Tom Tromey <tromey@redhat.com> * gdb.base/solib-weak.exp (do_test): Remove kfail. * gdb.trace/tracecmd.exp: Disable pending breakpoints earlier. * gdb.objc/objcdecode.exp: Update for output changes. * gdb.linespec/linespec.exp: New file. * gdb.linespec/lspec.cc: New file. * gdb.linespec/lspec.h: New file. * gdb.linespec/body.h: New file. * gdb.linespec/base/two/thefile.cc: New file. * gdb.linespec/base/one/thefile.cc: New file. * gdb.linespec/Makefile.in: New file. * gdb.cp/templates.exp (test_template_breakpoints): Update for output changes. * gdb.cp/re-set-overloaded.exp: Remove kfail. * gdb.cp/ovldbreak.exp: Update for output changes. "all" test now makes one breakpoint. * gdb.cp/method2.exp (test_break): Update for output changes. * gdb.cp/mb-templates.exp: Update for output changes. * gdb.cp/mb-inline.exp: Update for output changes. * gdb.cp/mb-ctor.exp: Update for output changes. * gdb.cp/ovsrch.exp: Use fully-qualified names. * gdb.base/solib-symbol.exp: Run to main later. Breakpoint now has multiple matches. * gdb.base/sepdebug.exp: Disable pending breakpoints. Update for error message change. * gdb.base/list.exp (test_list_filename_and_number): Update for error message change. * gdb.base/break.exp: Disable pending breakpoints. Update for output changes. * configure.ac: Add gdb.linespec. * configure: Rebuild. * Makefile.in (ALL_SUBDIRS): Add gdb.linespec. gdb/doc 2011-12-06 Tom Tromey <tromey@redhat.com> * gdb.texinfo (Set Breaks): Update for new behavior.
2011-12-06 19:54:43 +01:00
* GDB now handles ambiguous linespecs more consistently; the existing
FILE:LINE support has been expanded to other types of linespecs. A
breakpoint will now be set on all matching locations in all
inferiors, and locations will be added or removed according to
inferior changes.
2011-10-06 Justin Lebar <justin.lebar@gmail.com> * Makefile.in: (SFILES): Add skip.c. (HFILES_NO_SRCDIR): Add skip.h. (COMMON_OBS): Add skip.o. * skip.h, skip.c: New. * breakpoint.h (set_default_breakpoint): Remove. (get_sal_arch): Declare. * breakpoint.c: Remove default_breakpoint_valid, default_breakpoint_address, default_breakpoint_symtab, default_breakpoint_line, default_breakpoint_pspace variables. (get_sal_arch): Make public. (set_default_breakpoint): Remove. (parse_breakpoint_sals, create_breakpoint, clear_command, decode_line_spec_1): Remove uses of default_breakpoint variables; replaced with function calls into stack.c. * cli/cli-cmds.h: Add cmd_list_element *skiplist. * cli/cli-cmds.c: Add skiplist. (init_cmd_lists): Initialize skiplist. (init_cli_cmds): Fix comment (classes of commands appear in alphabetical order). * infrun.c (handle_inferior_event): Add check that we don't step into a function whose pc is marked for skip. * stack.c: Declare last_displayed_sal_valid, last_displayed_pspace, last_displayed_addr, last_displayed_symtab, last_displayed_line variables. (set_last_displayed_sal): New static function. (print_frame_info): Switch call to set_default_breakpoint to call to set_last_displayed_sal. (clear_last_displayed_sal, last_displayed_sal_is_valid, get_last_displayed_pspace, get_last_displayed_addr, get_last_displayed_symtab, get_last_displayed_line, get_last_displayed_sal): New public functions. * stack.h (clear_last_displayed_sal, last_displayed_sal_is_valid, get_last_displayed_pspace, get_last_displayed_addr, get_last_displayed_symtab, get_last_displayed_line, get_last_displayed_sal): Declare. 2011-10-06 Justin Lebar <justin.lebar@gmail.com> Add tests for skip command. * testsuite/gdb.base/skip-solib-lib.c: New * testsuite/gdb.base/skip-solib-main.c: New * testsuite/gdb.base/skip-solib.exp: New * testsuite/gdb.base/skip.c: New * testsuite/gdb.base/skip.exp: New * testsuite/gdb.base/skip1.c: New * testsuite/gdb.base/Makefile.in: Adding new files.
2011-11-01 15:51:25 +01:00
* GDB now allows you to skip uninteresting functions and files when
stepping with the "skip function" and "skip file" commands.
* GDB has two new commands: "set remote hardware-watchpoint-length-limit"
and "show remote hardware-watchpoint-length-limit". These allows to
set or show the maximum length limit (in bytes) of a remote
target hardware watchpoint.
This allows e.g. to use "unlimited" hardware watchpoints with the
gdbserver integrated in Valgrind version >= 3.7.0. Such Valgrind
watchpoints are slower than real hardware watchpoints but are
significantly faster than gdb software watchpoints.
* Python scripting
** The register_pretty_printer function in module gdb.printing now takes
an optional `replace' argument. If True, the new printer replaces any
existing one.
** The "maint set python print-stack on|off" command has been
deprecated and will be deleted in GDB 7.5.
A new command: "set python print-stack none|full|message" has
replaced it. Additionally, the default for "print-stack" is
now "message", which just prints the error message without
the stack trace.
** A prompt substitution hook (prompt_hook) is now available to the
Python API.
** A new Python module, gdb.prompt has been added to the GDB Python
modules library. This module provides functionality for
escape sequences in prompts (used by set/show
extended-prompt). These escape sequences are replaced by their
corresponding value.
** Python commands and convenience-functions located in
'data-directory'/python/gdb/command and
'data-directory'/python/gdb/function are now automatically loaded
on GDB start-up.
** Blocks now provide four new attributes. global_block and
static_block will return the global and static blocks
respectively. is_static and is_global are boolean attributes
that indicate if the block is one of those two types.
** Symbols now provide the "type" attribute, the type of the symbol.
** The "gdb.breakpoint" function has been deprecated in favor of
"gdb.breakpoints".
Introduce gdb.FinishBreakpoint in Python * Makefile.in (SUBDIR_PYTHON_OBS): Add py-finishbreakpoint.o. (SUBDIR_PYTHON_SRCS): Add python/py-finishbreakpoint.c. Add build rule for this file. * infcmd.c (print_return_value): Split to create get_return_value. (get_return_value): New function based on print_return_value. Handle case where stop_registers are not set. * inferior.h (get_return_value): New prototype. * python/py-breakpoint.c (bppy_pending_object): Make non-static. (gdbpy_breakpoint_created): Set is_py_finish_bp is necessary. (struct breakpoint_object): Move to python-internal.h (BPPY_REQUIRE_VALID): Likewise. (BPPY_SET_REQUIRE_VALID): Likewise. (gdbpy_breakpoint_created): Initialize is_finish_bp. (gdbpy_should_stop): Add pre/post hooks before/after calling stop method. * python/python-internal.h (breakpoint_object_type): Add as extern. (bppy_pending_object): Likewise. (typedef struct breakpoint_object) Removed. (struct breakpoint_object): Moved from py-breakpoint.c. Add field is_finish_bp. (BPPY_REQUIRE_VALID): Moved from py-breakpoint.c. (BPPY_SET_REQUIRE_VALID): Likewise. (frame_object_to_frame_info): New prototype. (gdbpy_initialize_finishbreakpoints): New prototype. (bpfinishpy_is_finish_bp): Likewise. (bpfinishpy_pre_stop_hook): Likewise. (bpfinishpy_post_stop_hook): Likewise. * python/py-finishbreakpoint.c: New file. * python/py-frame.c(frame_object_to_frame_info): Make non-static and accept PyObject instead of frame_object. (frapy_is_valid): Don't cast to frame_object. (frapy_name): Likewise. (frapy_type): Likewise. (frapy_unwind_stop_reason): Likewise. (frapy_pc): Likewise. (frapy_block): Likewise. (frapy_function): Likewise. (frapy_older): Likewise. (frapy_newer): Likewise. (frapy_find_sal): Likewise. (frapy_read_var): Likewise. (frapy_select): Likewise. * python/python.c (gdbpy_is_stopped_at_finish_bp): New noop function. (_initialize_python): Add gdbpy_initialize_finishbreakpoints. * python/python.h: Include breakpoint.h (gdbpy_is_stopped_at_finish_bp): New prototype. doc/ * gdb.texinfo (Finish Breakpoints in Python): New subsection. (Python API): Add menu entry for Finish Breakpoints. testsuite/ * Makefile.in (EXECUTABLES): Add py-finish-breakpoint and py-finish-breakpoint2 (MISCALLANEOUS): Add py-events-shlib.so and py-events-shlib-nodebug.so * gdb.python/py-breakpoint.exp (mult_line): Define and use variable instead of line number. * gdb.python/py-finish-breakpoint.c: New file. * gdb.python/py-finish-breakpoint.exp: New file. * gdb.python/py-finish-breakpoint.py: New file. * gdb.python/py-finish-breakpoint2.cc: New file. * gdb.python/py-finish-breakpoint2.exp: New file. * gdb.python/py-finish-breakpoint2.py: New file.
2011-12-23 18:06:16 +01:00
** A new class "gdb.FinishBreakpoint" is provided to catch the return
of a function. This class is based on the "finish" command
available in the CLI.
** Type objects for struct and union types now allow access to
the fields using standard Python dictionary (mapping) methods.
For example, "some_type['myfield']" now works, as does
"some_type.items()".
** A new event "gdb.new_objfile" has been added, triggered by loading a
new object file.
** A new function, "deep_items" has been added to the gdb.types
module in the GDB Python modules library. This function returns
an iterator over the fields of a struct or union type. Unlike
the standard Python "iteritems" method, it will recursively traverse
any anonymous fields.
2011-12-06 15:27:39 +01:00
* MI changes
** "*stopped" events can report several new "reason"s, such as
"solib-event".
** Breakpoint changes are now notified using new async records, like
"=breakpoint-modified".
** New command -ada-task-info.
* libthread-db-search-path now supports two special values: $sdir and $pdir.
$sdir specifies the default system locations of shared libraries.
$pdir specifies the directory where the libpthread used by the application
lives.
GDB no longer looks in $sdir and $pdir after it has searched the directories
mentioned in libthread-db-search-path. If you want to search those
directories, they must be specified in libthread-db-search-path.
The default value of libthread-db-search-path on GNU/Linux and Solaris
systems is now "$sdir:$pdir".
$pdir is not supported by gdbserver, it is currently ignored.
$sdir is supported by gdbserver.
* New configure option --with-iconv-bin.
When using the internationalization support like the one in the GNU C
library, GDB will invoke the "iconv" program to get a list of supported
character sets. If this program lives in a non-standard location, one can
use this option to specify where to find it.
2011-05-06 Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com> Thiago Jung Bauermann <bauerman@br.ibm.com> Implement support for PowerPC BookE masked watchpoints. gdb/ * NEWS: Mention masked watchpoint support. Create "Changed commands" section. * breakpoint.h (struct breakpoint_ops) <works_in_software_mode>: New method. Initialize to NULL in all existing breakpoint_ops instances. (struct breakpoint) <hw_wp_mask>: New field. * breakpoint.c (is_masked_watchpoint): Add prototype. (update_watchpoint): Don't set b->val for masked watchpoints. Call breakpoint's breakpoint_ops.works_in_software_mode if available. (watchpoints_triggered): Handle the case of a hardware masked watchpoint trigger. (watchpoint_check): Likewise. (works_in_software_mode_watchpoint): New function. (insert_masked_watchpoint, remove_masked_watchpoint) (resources_needed_masked_watchpoint) (works_in_software_mode_masked_watchpoint, print_it_masked_watchpoint) (print_one_detail_masked_watchpoint, print_mention_masked_watchpoint) (print_recreate_masked_watchpoint, is_masked_watchpoint): New functions. (masked_watchpoint_breakpoint_ops): New structure. (watch_command_1): Check for the existence of the `mask' parameter. Set b->ops according to the type of hardware watchpoint being created. * ppc-linux-nat.c (ppc_linux_insert_mask_watchpoint) (ppc_linux_remove_mask_watchpoint) (ppc_linux_masked_watch_num_registers): New functions. (_initialize_ppc_linux_nat): Initialize to_insert_mask_watchpoint, to_remove_mask_watchpoint and to_masked_watch_num_registers. * target.c (update_current_target): Mention to_insert_mask_watchpoint, to_remove_mask_watchpoint, and to_masked_watch_num_registers. (target_insert_mask_watchpoint, target_remove_mask_watchpoint) (target_masked_watch_num_registers): New functions. * target.h (struct target_ops) <to_insert_mask_watchpoint>, <to_remove_mask_watchpoint>, <to_masked_watch_num_registers>: New methods. (target_insert_mask_watchpoint, target_remove_mask_watchpoint) (target_masked_watch_num_registers): Add prototypes. gdb/doc/ * gdb.texinfo (Set Watchpoints): Document mask parameter. (PowerPC Embedded): Mention support of masked watchpoints.
2011-05-06 20:46:33 +02:00
* When natively debugging programs on PowerPC BookE processors running
a Linux kernel version 2.6.34 or later, GDB supports masked hardware
watchpoints, which specify a mask in addition to an address to watch.
The mask specifies that some bits of an address (the bits which are
reset in the mask) should be ignored when matching the address accessed
by the inferior against the watchpoint address. See the "PowerPC Embedded"
section in the user manual for more details.
* The new option --once causes GDBserver to stop listening for connections once
the first connection is made. The listening port used by GDBserver will
become available after that.
* New commands "info macros" and "alias" have been added.
* New function parameters suffix @entry specifies value of function parameter
at the time the function got called. Entry values are available only since
gcc version 4.7.
* New commands
!SHELL COMMAND
"!" is now an alias of the "shell" command.
Note that no space is needed between "!" and SHELL COMMAND.
2011-05-06 Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com> Thiago Jung Bauermann <bauerman@br.ibm.com> Implement support for PowerPC BookE masked watchpoints. gdb/ * NEWS: Mention masked watchpoint support. Create "Changed commands" section. * breakpoint.h (struct breakpoint_ops) <works_in_software_mode>: New method. Initialize to NULL in all existing breakpoint_ops instances. (struct breakpoint) <hw_wp_mask>: New field. * breakpoint.c (is_masked_watchpoint): Add prototype. (update_watchpoint): Don't set b->val for masked watchpoints. Call breakpoint's breakpoint_ops.works_in_software_mode if available. (watchpoints_triggered): Handle the case of a hardware masked watchpoint trigger. (watchpoint_check): Likewise. (works_in_software_mode_watchpoint): New function. (insert_masked_watchpoint, remove_masked_watchpoint) (resources_needed_masked_watchpoint) (works_in_software_mode_masked_watchpoint, print_it_masked_watchpoint) (print_one_detail_masked_watchpoint, print_mention_masked_watchpoint) (print_recreate_masked_watchpoint, is_masked_watchpoint): New functions. (masked_watchpoint_breakpoint_ops): New structure. (watch_command_1): Check for the existence of the `mask' parameter. Set b->ops according to the type of hardware watchpoint being created. * ppc-linux-nat.c (ppc_linux_insert_mask_watchpoint) (ppc_linux_remove_mask_watchpoint) (ppc_linux_masked_watch_num_registers): New functions. (_initialize_ppc_linux_nat): Initialize to_insert_mask_watchpoint, to_remove_mask_watchpoint and to_masked_watch_num_registers. * target.c (update_current_target): Mention to_insert_mask_watchpoint, to_remove_mask_watchpoint, and to_masked_watch_num_registers. (target_insert_mask_watchpoint, target_remove_mask_watchpoint) (target_masked_watch_num_registers): New functions. * target.h (struct target_ops) <to_insert_mask_watchpoint>, <to_remove_mask_watchpoint>, <to_masked_watch_num_registers>: New methods. (target_insert_mask_watchpoint, target_remove_mask_watchpoint) (target_masked_watch_num_registers): Add prototypes. gdb/doc/ * gdb.texinfo (Set Watchpoints): Document mask parameter. (PowerPC Embedded): Mention support of masked watchpoints.
2011-05-06 20:46:33 +02:00
* Changed commands
watch EXPRESSION mask MASK_VALUE
The watch command now supports the mask argument which allows creation
of masked watchpoints, if the current architecture supports this feature.
info auto-load-scripts [REGEXP]
This command was formerly named "maintenance print section-scripts".
It is now generally useful and is no longer a maintenance-only command.
info macro [-all] [--] MACRO
The info macro command has new options `-all' and `--'. The first for
printing all definitions of a macro. The second for explicitly specifying
the end of arguments and the beginning of the macro name in case the macro
name starts with a hyphen.
collect[/s] EXPRESSIONS
The tracepoint collect command now takes an optional modifier "/s"
that directs it to dereference pointer-to-character types and
collect the bytes of memory up to a zero byte. The behavior is
similar to what you see when you use the regular print command on a
string. An optional integer following the "/s" sets a bound on the
number of bytes that will be collected.
* NEWS: Mention tracepoint additions. * breakpoint.h (struct tracepoint): New field traceframe_usage. * breakpoint.c (print_one_breakpoint_location): Identify tracepoints as such when reporting hit counts, report trace buffer usage. (create_tracepoint_from_upload): Copy status info. * tracepoint.h (struct trace_status): Rename error_desc to stop_desc, add fields user_name, notes, start_time, stop_time. (struct uploaded_tp): Add fields hit_count, traceframe_usage. * tracepoint.c (trace_user): New global. (trace_notes): New global. (trace_stop_notes): New global. (start_tracing): Add argument and trace note handling. (stop_tracing): Ditto. (trace_start_command): Add notes argument. (trace_stop_command): Ditto. (trace_status_command): Report additional status info. (trace_status_mi): Similarly. (trace_save): Update, record tracepoint status. (set_disconnected_tracing): Call target method directly. (send_disconnected_tracing_value): Remove. (set_trace_user): New function. (set_trace_notes): New function. (set_trace_stop_notes): New function. (parse_trace_status): Handle additional status. (parse_tracepoint_status): New function. (parse_tracepoint_definition): Call it. (tfile_get_tracepoint_status): New function. (init_tfile_ops): Use it. (_initialize_tracepoint): Add new setshows. * target.h (struct target_ops): New methods to_get_tracepoint_status and to_set_trace_notes. (target_get_tracepoint_status): New macro. (target_set_trace_notes): New macro. * target.c (update_current_target): Add new methods. * remote.c (remote_get_tracepoint_status): New function. (remote_set_trace_notes): New function. (init_remote_ops): Add them. * mi/mi-main.c (mi_cmd_trace_start): Add argument to call. (mi_cmd_trace_stop): Ditto. * tracepoint.c (struct tracepoint): New field traceframe_usage. (tracing_start_time): New global. (tracing_stop_time): New global. (tracing_user_name): New global. (tracing_notes): New global. (tracing_stop_note): New global. (cmd_qtstart): Set traceframe_usage, start_time. (stop_tracing): Set stop_time. (cmd_qtstatus): Report additional status. (cmd_qtp): New function. (handle_tracepoint_query): Call it. (cmd_qtnotes): New function. (handle_tracepoint_general_set): Call it. (get_timestamp): Rename from tsv_get_timestamp. * gdb.texinfo (Starting and Stopping Trace Experiments): Document note-related options and variables. (Tracepoint Packets): Document packet changes. * gdb.trace/tstatus.exp: New. * gdb.trace/actions.c: Include string.h.
2011-11-21 00:59:49 +01:00
tstart [NOTES]
The trace start command now interprets any supplied arguments as a
note to be recorded with the trace run, with an effect similar to
setting the variable trace-notes.
tstop [NOTES]
The trace stop command now interprets any arguments as a note to be
mentioned along with the tstatus report that the trace was stopped
with a command. The effect is similar to setting the variable
trace-stop-notes.
Add support for enabling and disabling tracepoints while a trace experiment is still running. gdb/ * breakpoint.c (disable_breakpoint): Disable all locations associated with a tracepoint on target if a trace experiment is running. (disable_command): Disable a specific tracepoint location on target if a trace experiment is running. (do_enable_breakpoint): Enable all locations associated with a tracepoint on target if a trace experiment is running. (enable_command) Enable a specific tracepoint location on target if a trace experiment is running. * target.c (update_current_target): Add INHERIT and de_fault clauses for to_supports_enable_disable_tracepoint, to_enable_tracepoint and to_disable_tracepoint. * target.h: Add declaration of struct bp_location. (struct target_ops): Add new functions to_supports_enable_disable_tracepoint, to_enable_tracepoint and to_disable_tracepoint to target operations. (target_supports_enable_disable_tracepoint): New macro. (target_enable_tracepoint): New macro. (target_disable_tracepoint): New macro. * remote.c (struct remote_state): Add new field. (remote_enable_disable_tracepoint_feature): New. (remote_protocol_features): Add new entry. (remote_supports_enable_disable_tracepoint): New. (remote_enable_tracepoint): New. (remote_disable_tracepoint): New. (init_remote_ops): Add remote_enable_tracepoint, remote_disable_tracepoint and remote_supports_enable_disable_tracepoint to remote operations. * tracepoint.c (start_tracing): Allow tracing to start without any tracepoints enabled with just a warning if they can be re-enabled later. * NEWS: Add news item for the new behaviour of the enable and disable GDB commands when applied to tracepoints. Add news items for the new remote packets QTEnable and QTDisable. gdb/doc/ * gdb.texinfo: Document change in the behaviour of the enable and disable GDB commands when applied to tracepoints. Document the EnableDisableTracepoints remote stub feature. Document QTEnable and QTDisable in the list of tracepoint packets. gdb/gdbserver/ * server.c (handle_query): Add EnableDisableTracepoints to the list of supported features. * tracepoint.c (clear_installed_tracepoints): Uninstall disabled tracepoints. (cmd_qtenable_disable): New. (cmd_qtstart): Install tracepoints even if disabled. (handle_tracepoint_general_set): Add call to cmd_qtenable_disable on receiving a QTEnable or QTDisable packet. (gdb_collect): Skip data collection if fast tracepoint is disabled. (ust_marker_to_static_tracepoint): Do not ignore disabled static tracepoints. (gdb_probe): Skip data collection if static tracepoint is disabled.
2011-05-12 14:09:17 +02:00
* Tracepoints can now be enabled and disabled at any time after a trace
experiment has been started using the standard "enable" and "disable"
commands. It is now possible to start a trace experiment with no enabled
tracepoints; GDB will display a warning, but will allow the experiment to
begin, assuming that tracepoints will be enabled as needed while the trace
is running.
2011-11-14 Stan Shebs <stan@codesourcery.com> Kwok Cheung Yeung <kcy@codesourcery.com> * NEWS: Document shorter fast tracepoints and qTMinFTPILen packet. * i386-tdep.c (i386_fast_tracepoint_valid_at): Query target for the minimum instruction size for fast tracepoints. * target.h (struct target_ops): Add new method to_get_min_fast_tracepoint_insn_len. (target_get_min_fast_tracepoint_insn_len): New. * target.c (update_current_target): Set up new target operation. * remote.c (remote_write_bytes_aux): Fix typo. (remote_get_min_fast_tracepoint_insn_len): New. (init_remote_ops): Initialize new field. * gdb.texinfo (Create and Delete Tracepoints): Describe what is needed to get shorter fast tracepoints. (Tracepoint Packets): Document new qTMinFTPILen packet. * linux-x86-low.c (small_jump_insn): New. (i386_install_fast_tracepoint_jump_pad): Add arguments for trampoline and error message, build a trampoline and issue a small jump instruction to it. (x86_install_fast_tracepoint_jump_pad): Add arguments for trampoline and error message. (x86_get_min_fast_tracepoint_insn_len): New. (the_low_target): Add call to x86_get_min_fast_tracepoint_insn_len. * linux-low.h (struct linux_target_ops): Add arguments to install_fast_tracepoint_jump_pad operation, add new operation. * linux-low.c (linux_install_fast_tracepoint_jump_pad): Add arguments. (linux_get_min_fast_tracepoint_insn_len): New function. (linux_target_op): Add new operation. * tracepoint.c (gdb_trampoline_buffer): New IPA variable. (gdb_trampoline_buffer_end): Ditto. (gdb_trampoline_buffer_error): Ditto. (struct ipa_sym_addresses): Add fields for new IPA variables. (symbol_list): Add entries for new IPA variables. (struct tracepoint): Add fields to hold the address range of the trampoline used by the tracepoint. (trampoline_buffer_head): New static variable. (trampoline_buffer_tail): Ditto. (claim_trampoline_space): New function. (have_fast_tracepoint_trampoline_buffer): New function. (clone_fast_tracepoint): Fill in trampoline fields of tracepoint structure. (install_fast_tracepoint): Ditto, also add error buffer argument. (cmd_qtminftpilen): New function. (handle_tracepoint_query): Add response to qTMinFTPILen packet. (fast_tracepoint_from_trampoline_address): New function. (fast_tracepoint_collecting): Handle trampoline as part of jump pad space. (set_trampoline_buffer_space): New function. (initialize_tracepoint): Initialize new IPA variables. * target.h (struct target_ops): Add arguments to install_fast_tracepoint_jump_pad operation, add new get_min_fast_tracepoint_insn_len operation. (target_get_min_fast_tracepoint_insn_len): New. (install_fast_tracepoint_jump_pad): Add arguments. * server.h (IPA_BUFSIZ): Define. * linux-i386-ipa.c: Include extra header files. (initialize_fast_tracepoint_trampoline_buffer): New function. (initialize_low_tracepoint): Call it. * server.h (set_trampoline_buffer_space): Declare. (claim_trampoline_space): Ditto. (have_fast_tracepoint_trampoline_buffer): Ditto. * gdb.trace/ftrace.c: New. * gdb.trace/ftrace.exp: New.
2011-11-14 21:07:25 +01:00
* Fast tracepoints on 32-bit x86-architectures can now be placed at
locations with 4-byte instructions, when they were previously
limited to locations with instructions of 5 bytes or longer.
* New options
set debug dwarf2-read
show debug dwarf2-read
Turns on or off display of debugging messages related to reading
DWARF debug info. The default is off.
set debug symtab-create
show debug symtab-create
Turns on or off display of debugging messages related to symbol table
creation. The default is off.
set extended-prompt
show extended-prompt
Set the GDB prompt, and allow escape sequences to be inserted to
display miscellaneous information (see 'help set extended-prompt'
for the list of sequences). This prompt (and any information
accessed through the escape sequences) is updated every time the
prompt is displayed.
set print entry-values (both|compact|default|if-needed|no|only|preferred)
show print entry-values
Set printing of frame argument values at function entry. In some cases
GDB can determine the value of function argument which was passed by the
function caller, even if the value was modified inside the called function.
set debug entry-values
show debug entry-values
Control display of debugging info for determining frame argument values at
function entry and virtual tail call frames.
set basenames-may-differ
show basenames-may-differ
Set whether a source file may have multiple base names.
(A "base name" is the name of a file with the directory part removed.
Example: The base name of "/home/user/hello.c" is "hello.c".)
If set, GDB will canonicalize file names (e.g., expand symlinks)
before comparing them. Canonicalization is an expensive operation,
but it allows the same file be known by more than one base name.
If not set (the default), all source files are assumed to have just
one base name, and gdb will do file name comparisons more efficiently.
* NEWS: Mention tracepoint additions. * breakpoint.h (struct tracepoint): New field traceframe_usage. * breakpoint.c (print_one_breakpoint_location): Identify tracepoints as such when reporting hit counts, report trace buffer usage. (create_tracepoint_from_upload): Copy status info. * tracepoint.h (struct trace_status): Rename error_desc to stop_desc, add fields user_name, notes, start_time, stop_time. (struct uploaded_tp): Add fields hit_count, traceframe_usage. * tracepoint.c (trace_user): New global. (trace_notes): New global. (trace_stop_notes): New global. (start_tracing): Add argument and trace note handling. (stop_tracing): Ditto. (trace_start_command): Add notes argument. (trace_stop_command): Ditto. (trace_status_command): Report additional status info. (trace_status_mi): Similarly. (trace_save): Update, record tracepoint status. (set_disconnected_tracing): Call target method directly. (send_disconnected_tracing_value): Remove. (set_trace_user): New function. (set_trace_notes): New function. (set_trace_stop_notes): New function. (parse_trace_status): Handle additional status. (parse_tracepoint_status): New function. (parse_tracepoint_definition): Call it. (tfile_get_tracepoint_status): New function. (init_tfile_ops): Use it. (_initialize_tracepoint): Add new setshows. * target.h (struct target_ops): New methods to_get_tracepoint_status and to_set_trace_notes. (target_get_tracepoint_status): New macro. (target_set_trace_notes): New macro. * target.c (update_current_target): Add new methods. * remote.c (remote_get_tracepoint_status): New function. (remote_set_trace_notes): New function. (init_remote_ops): Add them. * mi/mi-main.c (mi_cmd_trace_start): Add argument to call. (mi_cmd_trace_stop): Ditto. * tracepoint.c (struct tracepoint): New field traceframe_usage. (tracing_start_time): New global. (tracing_stop_time): New global. (tracing_user_name): New global. (tracing_notes): New global. (tracing_stop_note): New global. (cmd_qtstart): Set traceframe_usage, start_time. (stop_tracing): Set stop_time. (cmd_qtstatus): Report additional status. (cmd_qtp): New function. (handle_tracepoint_query): Call it. (cmd_qtnotes): New function. (handle_tracepoint_general_set): Call it. (get_timestamp): Rename from tsv_get_timestamp. * gdb.texinfo (Starting and Stopping Trace Experiments): Document note-related options and variables. (Tracepoint Packets): Document packet changes. * gdb.trace/tstatus.exp: New. * gdb.trace/actions.c: Include string.h.
2011-11-21 00:59:49 +01:00
set trace-user
show trace-user
set trace-notes
show trace-notes
Set a user name and notes for the current and any future trace runs.
This is useful for long-running and/or disconnected traces, to
inform others (or yourself) as to who is running the trace, supply
contact information, or otherwise explain what is going on.
set trace-stop-notes
show trace-stop-notes
Set a note attached to the trace run, that is displayed when the
trace has been stopped by a tstop command. This is useful for
instance as an explanation, if you are stopping a trace run that was
started by someone else.
Add support for enabling and disabling tracepoints while a trace experiment is still running. gdb/ * breakpoint.c (disable_breakpoint): Disable all locations associated with a tracepoint on target if a trace experiment is running. (disable_command): Disable a specific tracepoint location on target if a trace experiment is running. (do_enable_breakpoint): Enable all locations associated with a tracepoint on target if a trace experiment is running. (enable_command) Enable a specific tracepoint location on target if a trace experiment is running. * target.c (update_current_target): Add INHERIT and de_fault clauses for to_supports_enable_disable_tracepoint, to_enable_tracepoint and to_disable_tracepoint. * target.h: Add declaration of struct bp_location. (struct target_ops): Add new functions to_supports_enable_disable_tracepoint, to_enable_tracepoint and to_disable_tracepoint to target operations. (target_supports_enable_disable_tracepoint): New macro. (target_enable_tracepoint): New macro. (target_disable_tracepoint): New macro. * remote.c (struct remote_state): Add new field. (remote_enable_disable_tracepoint_feature): New. (remote_protocol_features): Add new entry. (remote_supports_enable_disable_tracepoint): New. (remote_enable_tracepoint): New. (remote_disable_tracepoint): New. (init_remote_ops): Add remote_enable_tracepoint, remote_disable_tracepoint and remote_supports_enable_disable_tracepoint to remote operations. * tracepoint.c (start_tracing): Allow tracing to start without any tracepoints enabled with just a warning if they can be re-enabled later. * NEWS: Add news item for the new behaviour of the enable and disable GDB commands when applied to tracepoints. Add news items for the new remote packets QTEnable and QTDisable. gdb/doc/ * gdb.texinfo: Document change in the behaviour of the enable and disable GDB commands when applied to tracepoints. Document the EnableDisableTracepoints remote stub feature. Document QTEnable and QTDisable in the list of tracepoint packets. gdb/gdbserver/ * server.c (handle_query): Add EnableDisableTracepoints to the list of supported features. * tracepoint.c (clear_installed_tracepoints): Uninstall disabled tracepoints. (cmd_qtenable_disable): New. (cmd_qtstart): Install tracepoints even if disabled. (handle_tracepoint_general_set): Add call to cmd_qtenable_disable on receiving a QTEnable or QTDisable packet. (gdb_collect): Skip data collection if fast tracepoint is disabled. (ust_marker_to_static_tracepoint): Do not ignore disabled static tracepoints. (gdb_probe): Skip data collection if static tracepoint is disabled.
2011-05-12 14:09:17 +02:00
* New remote packets
QTEnable
Dynamically enable a tracepoint in a started trace experiment.
QTDisable
Dynamically disable a tracepoint in a started trace experiment.
* NEWS: Mention tracepoint additions. * breakpoint.h (struct tracepoint): New field traceframe_usage. * breakpoint.c (print_one_breakpoint_location): Identify tracepoints as such when reporting hit counts, report trace buffer usage. (create_tracepoint_from_upload): Copy status info. * tracepoint.h (struct trace_status): Rename error_desc to stop_desc, add fields user_name, notes, start_time, stop_time. (struct uploaded_tp): Add fields hit_count, traceframe_usage. * tracepoint.c (trace_user): New global. (trace_notes): New global. (trace_stop_notes): New global. (start_tracing): Add argument and trace note handling. (stop_tracing): Ditto. (trace_start_command): Add notes argument. (trace_stop_command): Ditto. (trace_status_command): Report additional status info. (trace_status_mi): Similarly. (trace_save): Update, record tracepoint status. (set_disconnected_tracing): Call target method directly. (send_disconnected_tracing_value): Remove. (set_trace_user): New function. (set_trace_notes): New function. (set_trace_stop_notes): New function. (parse_trace_status): Handle additional status. (parse_tracepoint_status): New function. (parse_tracepoint_definition): Call it. (tfile_get_tracepoint_status): New function. (init_tfile_ops): Use it. (_initialize_tracepoint): Add new setshows. * target.h (struct target_ops): New methods to_get_tracepoint_status and to_set_trace_notes. (target_get_tracepoint_status): New macro. (target_set_trace_notes): New macro. * target.c (update_current_target): Add new methods. * remote.c (remote_get_tracepoint_status): New function. (remote_set_trace_notes): New function. (init_remote_ops): Add them. * mi/mi-main.c (mi_cmd_trace_start): Add argument to call. (mi_cmd_trace_stop): Ditto. * tracepoint.c (struct tracepoint): New field traceframe_usage. (tracing_start_time): New global. (tracing_stop_time): New global. (tracing_user_name): New global. (tracing_notes): New global. (tracing_stop_note): New global. (cmd_qtstart): Set traceframe_usage, start_time. (stop_tracing): Set stop_time. (cmd_qtstatus): Report additional status. (cmd_qtp): New function. (handle_tracepoint_query): Call it. (cmd_qtnotes): New function. (handle_tracepoint_general_set): Call it. (get_timestamp): Rename from tsv_get_timestamp. * gdb.texinfo (Starting and Stopping Trace Experiments): Document note-related options and variables. (Tracepoint Packets): Document packet changes. * gdb.trace/tstatus.exp: New. * gdb.trace/actions.c: Include string.h.
2011-11-21 00:59:49 +01:00
QTNotes
Set the user and notes of the trace run.
qTP
Query the current status of a tracepoint.
2011-11-14 Stan Shebs <stan@codesourcery.com> Kwok Cheung Yeung <kcy@codesourcery.com> * NEWS: Document shorter fast tracepoints and qTMinFTPILen packet. * i386-tdep.c (i386_fast_tracepoint_valid_at): Query target for the minimum instruction size for fast tracepoints. * target.h (struct target_ops): Add new method to_get_min_fast_tracepoint_insn_len. (target_get_min_fast_tracepoint_insn_len): New. * target.c (update_current_target): Set up new target operation. * remote.c (remote_write_bytes_aux): Fix typo. (remote_get_min_fast_tracepoint_insn_len): New. (init_remote_ops): Initialize new field. * gdb.texinfo (Create and Delete Tracepoints): Describe what is needed to get shorter fast tracepoints. (Tracepoint Packets): Document new qTMinFTPILen packet. * linux-x86-low.c (small_jump_insn): New. (i386_install_fast_tracepoint_jump_pad): Add arguments for trampoline and error message, build a trampoline and issue a small jump instruction to it. (x86_install_fast_tracepoint_jump_pad): Add arguments for trampoline and error message. (x86_get_min_fast_tracepoint_insn_len): New. (the_low_target): Add call to x86_get_min_fast_tracepoint_insn_len. * linux-low.h (struct linux_target_ops): Add arguments to install_fast_tracepoint_jump_pad operation, add new operation. * linux-low.c (linux_install_fast_tracepoint_jump_pad): Add arguments. (linux_get_min_fast_tracepoint_insn_len): New function. (linux_target_op): Add new operation. * tracepoint.c (gdb_trampoline_buffer): New IPA variable. (gdb_trampoline_buffer_end): Ditto. (gdb_trampoline_buffer_error): Ditto. (struct ipa_sym_addresses): Add fields for new IPA variables. (symbol_list): Add entries for new IPA variables. (struct tracepoint): Add fields to hold the address range of the trampoline used by the tracepoint. (trampoline_buffer_head): New static variable. (trampoline_buffer_tail): Ditto. (claim_trampoline_space): New function. (have_fast_tracepoint_trampoline_buffer): New function. (clone_fast_tracepoint): Fill in trampoline fields of tracepoint structure. (install_fast_tracepoint): Ditto, also add error buffer argument. (cmd_qtminftpilen): New function. (handle_tracepoint_query): Add response to qTMinFTPILen packet. (fast_tracepoint_from_trampoline_address): New function. (fast_tracepoint_collecting): Handle trampoline as part of jump pad space. (set_trampoline_buffer_space): New function. (initialize_tracepoint): Initialize new IPA variables. * target.h (struct target_ops): Add arguments to install_fast_tracepoint_jump_pad operation, add new get_min_fast_tracepoint_insn_len operation. (target_get_min_fast_tracepoint_insn_len): New. (install_fast_tracepoint_jump_pad): Add arguments. * server.h (IPA_BUFSIZ): Define. * linux-i386-ipa.c: Include extra header files. (initialize_fast_tracepoint_trampoline_buffer): New function. (initialize_low_tracepoint): Call it. * server.h (set_trampoline_buffer_space): Declare. (claim_trampoline_space): Ditto. (have_fast_tracepoint_trampoline_buffer): Ditto. * gdb.trace/ftrace.c: New. * gdb.trace/ftrace.exp: New.
2011-11-14 21:07:25 +01:00
qTMinFTPILen
Query the minimum length of instruction at which a fast tracepoint may
be placed.
* Dcache size (number of lines) and line-size are now runtime-configurable
via "set dcache line" and "set dcache line-size" commands.
* New targets
Texas Instruments TMS320C6x tic6x-*-*
* New Simulators
Renesas RL78 rl78-*-elf
*** Changes in GDB 7.3.1
* The build failure for NetBSD and OpenBSD targets have now been fixed.
*** Changes in GDB 7.3
* GDB has a new command: "thread find [REGEXP]".
It finds the thread id whose name, target id, or thread extra info
matches the given regular expression.
* The "catch syscall" command now works on mips*-linux* targets.
* The -data-disassemble MI command now supports modes 2 and 3 for
dumping the instruction opcodes.
* New command line options
-data-directory DIR Specify DIR as the "data-directory".
This is mostly for testing purposes.
* The "maint set python auto-load on|off" command has been renamed to
"set auto-load-scripts on|off".
* GDB has a new command: "set directories".
It is like the "dir" command except that it replaces the
source path list instead of augmenting it.
* GDB now understands thread names.
On GNU/Linux, "info threads" will display the thread name as set by
prctl or pthread_setname_np.
There is also a new command, "thread name", which can be used to
assign a name internally for GDB to display.
* OpenCL C
Initial support for the OpenCL C language (http://www.khronos.org/opencl)
has been integrated into GDB.
* Python scripting
** The function gdb.Write now accepts an optional keyword 'stream'.
This keyword, when provided, will direct the output to either
stdout, stderr, or GDB's logging output.
** Parameters can now be be sub-classed in Python, and in particular
you may implement the get_set_doc and get_show_doc functions.
This improves how Parameter set/show documentation is processed
and allows for more dynamic content.
** Symbols, Symbol Table, Symbol Table and Line, Object Files,
Inferior, Inferior Thread, Blocks, and Block Iterator APIs now
have an is_valid method.
** Breakpoints can now be sub-classed in Python, and in particular
you may implement a 'stop' function that is executed each time
the inferior reaches that breakpoint.
** New function gdb.lookup_global_symbol looks up a global symbol.
** GDB values in Python are now callable if the value represents a
function. For example, if 'some_value' represents a function that
takes two integer parameters and returns a value, you can call
that function like so:
result = some_value (10,20)
** Module gdb.types has been added.
It contains a collection of utilities for working with gdb.Types objects:
get_basic_type, has_field, make_enum_dict.
** Module gdb.printing has been added.
It contains utilities for writing and registering pretty-printers.
New classes: PrettyPrinter, SubPrettyPrinter,
RegexpCollectionPrettyPrinter.
New function: register_pretty_printer.
** New commands "info pretty-printers", "enable pretty-printer" and
"disable pretty-printer" have been added.
** gdb.parameter("directories") is now available.
** New function gdb.newest_frame returns the newest frame in the
selected thread.
** The gdb.InferiorThread class has a new "name" attribute. This
holds the thread's name.
2011-02-04 22:54:16 +01:00
** Python Support for Inferior events.
Python scripts can add observers to be notified of events
occurring in the process being debugged.
2011-02-05 06:27:23 +01:00
The following events are currently supported:
- gdb.events.cont Continue event.
- gdb.events.exited Inferior exited event.
- gdb.events.stop Signal received, and Breakpoint hit events.
* C++ Improvements:
** GDB now puts template parameters in scope when debugging in an
instantiation. For example, if you have:
template<int X> int func (void) { return X; }
then if you step into func<5>, "print X" will show "5". This
feature requires proper debuginfo support from the compiler; it
was added to GCC 4.5.
** The motion commands "next", "finish", "until", and "advance" now
work better when exceptions are thrown. In particular, GDB will
no longer lose control of the inferior; instead, the GDB will
stop the inferior at the point at which the exception is caught.
This functionality requires a change in the exception handling
code that was introduced in GCC 4.5.
* GDB now follows GCC's rules on accessing volatile objects when
reading or writing target state during expression evaluation.
One notable difference to prior behavior is that "print x = 0"
no longer generates a read of x; the value of the assignment is
now always taken directly from the value being assigned.
2010-07-27 22:44:33 +02:00
* GDB now has some support for using labels in the program's source in
linespecs. For instance, you can use "advance label" to continue
execution to a label.
* GDB now has support for reading and writing a new .gdb_index
section. This section holds a fast index of DWARF debugging
information and can be used to greatly speed up GDB startup and
operation. See the documentation for `save gdb-index' for details.
2010-08-16 23:15:46 +02:00
* The "watch" command now accepts an optional "-location" argument.
2010-08-16 23:19:29 +02:00
When used, this causes GDB to watch the memory referred to by the
2010-08-16 23:15:46 +02:00
expression. Such a watchpoint is never deleted due to it going out
of scope.
* GDB now supports thread debugging of core dumps on GNU/Linux.
GDB now activates thread debugging using the libthread_db library
when debugging GNU/Linux core dumps, similarly to when debugging
live processes. As a result, when debugging a core dump file, GDB
is now able to display pthread_t ids of threads. For example, "info
threads" shows the same output as when debugging the process when it
was live. In earlier releases, you'd see something like this:
(gdb) info threads
* 1 LWP 6780 main () at main.c:10
While now you see this:
(gdb) info threads
* 1 Thread 0x7f0f5712a700 (LWP 6780) main () at main.c:10
It is also now possible to inspect TLS variables when debugging core
dumps.
When debugging a core dump generated on a machine other than the one
used to run GDB, you may need to point GDB at the correct
libthread_db library with the "set libthread-db-search-path"
command. See the user manual for more details on this command.
2011-03-31 Thiago Jung Bauermann <bauerman@br.ibm.com> Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com> Implement support for PowerPC BookE ranged breakpoints. gdb/ * NEWS: Mention support for ranged breakpoints on embedded PowerPC. * breakpoint.h (struct bp_target_info) <length>: New member variable. (struct breakpoint_ops) <breakpoint_hit>: Take struct bp_location instead of struct breakpoint as argument, and also add ASPACE and BP_ADDR arguments. Update all callers. (struct breakpoint_ops) <print_one_detail>: New method. (struct breakpoint) <addr_string_range_end>: New member variable. * breakpoint.c (breakpoint_location_address_match): Add function prototype. (insert_bp_location): Set bl->target_info.length. (breakpoint_here_p): Call breakpoint_location_address_match. (moribund_breakpoint_here_p): Likewise. (regular_breakpoint_inserted_here_p): Likewise. (breakpoint_thread_match): Likewise. (bpstat_stop_status): Likewise. (bpstat_check_location): Move call to breakpoint_ops.breakpoint_hit to the top. (print_one_breakpoint_location): Call breakpoint_ops.print_one_detail if available. (breakpoint_address_match_range): New function. (breakpoint_location_address_match): Likewise. (breakpoint_locations_match): Compare the length field of the locations too. (hw_breakpoint_used_count): Count resources used by all locations in a breakpoint, and use breakpoint_ops.resources_needed if available. (breakpoint_hit_ranged_breakpoint): New function. (resources_needed_ranged_breakpoint): Likewise. (print_it_ranged_breakpoint): Likewise. (print_one_ranged_breakpoint): Likewise. (print_one_detail_ranged_breakpoint): Likewise. (print_mention_ranged_breakpoint): Likewise. (print_recreate_ranged_breakpoint): Likewise. (ranged_breakpoint_ops): New structure. (find_breakpoint_range_end): New function. (break_range_command): Likewise. (delete_breakpoint): Free addr_string_range_end. (update_breakpoint_locations): Add SALS_END argument. Update all callers. Calculate breakpoint length if a non-zero SALS_END is given. Call breakpoint_locations_match instead of breakpoint_address_match. (reset_breakpoint): Find SaL of the end of the range if B is a ranged breakpoint. (_initialize_breakpoint): Register break-range command. * defs.h (print_core_address): Add function prototype. * ppc-linux-nat.c (ppc_linux_ranged_break_num_registers): New function. (ppc_linux_insert_hw_breakpoint): Support ranged breakpoints. (ppc_linux_remove_hw_breakpoint): Likewise. (_initialize_ppc_linux_nat): Initialize to_ranged_break_num_registers. * target.c (update_current_target): Add comment about to_ranged_break_num_registers. (target_ranged_break_num_registers): New function. * target.h (struct target_ops) <to_ranged_break_num_registers>: New method. (target_ranged_break_num_registers): Add function prototype. * ui-out.c (ui_out_field_core_addr): Move address-printing logic to ... * utils.c (print_core_address): ... here. gdb/doc/ * gdb.texinfo (PowerPC Embedded): Document ranged breakpoints.
2011-03-31 16:32:49 +02:00
* When natively debugging programs on PowerPC BookE processors running
a Linux kernel version 2.6.34 or later, GDB supports ranged breakpoints,
which stop execution of the inferior whenever it executes an instruction
at any address within the specified range. See the "PowerPC Embedded"
section in the user manual for more details.
* New features in the GDB remote stub, GDBserver
** GDBserver is now supported on PowerPC LynxOS (versions 4.x and 5.x),
and i686 LynxOS (version 5.x).
** GDBserver is now supported on Blackfin Linux.
* New native configurations
ia64 HP-UX ia64-*-hpux*
* New targets:
Analog Devices, Inc. Blackfin Processor bfin-*
* Ada task switching is now supported on sparc-elf targets when
debugging a program using the Ravenscar Profile. For more information,
see the "Tasking Support when using the Ravenscar Profile" section
in the GDB user manual.
* Guile support was removed.
2010-12-16 14:05:28 +01:00
* New features in the GNU simulator
** The --map-info flag lists all known core mappings.
** CFI flashes may be simulated via the "cfi" device.
*** Changes in GDB 7.2
* Shared library support for remote targets by default
When GDB is configured for a generic, non-OS specific target, like
for example, --target=arm-eabi or one of the many *-*-elf targets,
GDB now queries remote stubs for loaded shared libraries using the
`qXfer:libraries:read' packet. Previously, shared library support
was always disabled for such configurations.
* C++ Improvements:
** Argument Dependent Lookup (ADL)
In C++ ADL lookup directs function search to the namespaces of its
arguments even if the namespace has not been imported.
For example:
namespace A
{
class B { };
void foo (B) { }
}
...
A::B b
foo(b)
Here the compiler will search for `foo' in the namespace of 'b'
and find A::foo. GDB now supports this. This construct is commonly
used in the Standard Template Library for operators.
** Improved User Defined Operator Support
In addition to member operators, GDB now supports lookup of operators
defined in a namespace and imported with a `using' directive, operators
defined in the global scope, operators imported implicitly from an
anonymous namespace, and the ADL operators mentioned in the previous
entry.
GDB now also supports proper overload resolution for all the previously
mentioned flavors of operators.
** static const class members
Printing of static const class members that are initialized in the
class definition has been fixed.
Support for Windows OS Thread Information Block. * NEWS: Document new feature. * remote.c (PACKET_qGetTIBAddr): New enum element. (remote_get_tib_address): New function. (init_remote_ops): Set to_get_tib_address field to remote_get_tib_address. (_initialize_remote): Add add_packet_config_cmd for PACKET_qGetTIBAddr. * target.c (update_current_target): Set default value for new to_get_tib_address field. * target.h (target_ops): New field to_get_tib_address. (target_get_tib_address): New macro. * windows-nat.c (thread_info): Add thread_local_base field. (windows_add_thread): Add tlb argument of type 'void *'. (fake_create_process): Adapt windows_add_thread call. (get_windows_debug_event): Idem. (windows_get_tib_address): New function. (init_windows_ops): Set to_get_tib_address field to remote_get_tib_address. (_initialize_windows_nat): Replace info_w32_cmdlist initialization by a call to init_w32_command_list. (info_w32_command, info_w32_cmdlist): Removed from here... to windows-tdep.c file. * windows-tdep.h (info_w32_cmdlist): Declare. (init_w32_command_list): New external function declaration. * windows-tdep.c: Add several headers. (info_w32_cmdlist): to here, made global. (thread_information_32): New struct. (thread_information_64): New struct. (TIB_NAME): New char array. (MAX_TIB32, MAX_TIB64, FULL_TIB_SIZE): New constants. (maint_display_all_tib): New static variable. (windows_get_tlb_type): New function. (tlb_value_read, tlb_value_write): New functions. (tlb_value_funcs): New static struct. (tlb_make_value): New function. (display_one_tib): New function. (display_tib): New function. (show_maint_show_all_tib):New function. (info_w32_command): Moved from windows-nat.c. (init_w32_command_list): New function. (_initialize_windows_tdep): New function. New "maint set/show show-all-tib" command New "$_tlb" internal variable. gdbserver/ChangeLog entry: * server.c (handle_query): Handle 'qGetTIBAddr' query. * target.h (target_ops): New get_tib_address field. * win32-low.h (win32_thread_info): Add thread_local_base field. * win32-low.c (child_add_thread): Add tlb argument. Set thread_local_base field to TLB. (get_child_debug_event): Adapt to child_add_thread change. (win32_get_tib_address): New function. (win32_target_ops): Set get_tib_address field to win32_get_tib_address. * linux-low.c (linux_target_ops): Set get_tib_address field to NULL. doc/ChangeLog entry: gdb.texinfo ($_tlb): Document new automatic convinience variable. (info w32 thread-information-block): Document new command. (qGetTIBAddress): Document new gdbserver query. (maint set/show show-all-tib): Document new command.
2010-04-16 09:49:37 +02:00
* Windows Thread Information Block access.
On Windows targets, GDB now supports displaying the Windows Thread
Information Block (TIB) structure. This structure is visible either
by using the new command `info w32 thread-information-block' or, by
dereferencing the new convenience variable named `$_tlb', a
thread-specific pointer to the TIB. This feature is also supported
when remote debugging using GDBserver.
Static tracepoints support, and UST integration. gdb/gdbserver/ * configure.ac: Handle --with-ust. substitute ustlibs and ustinc. * mem-break.c (uninsert_all_breakpoints) (reinsert_all_breakpoints): New. * mem-break.h (reinsert_all_breakpoints, uninsert_all_breakpoints): * tracepoint.c (ust_loaded, helper_thread_id, cmd_buf): New. (gdb_agent_ust_loaded, helper_thread_id) (gdb_agent_helper_thread_id): New macros. (struct ipa_sym_addresses): Add addr_ust_loaded, addr_helper_thread_id, addr_cmd_buf. (symbol_list): Add ust_loaded, helper_thread_id, cmd_buf. (in_process_agent_loaded_ust): New. (write_e_ust_not_loaded): New. (maybe_write_ipa_ust_not_loaded): New. (struct collect_static_trace_data_action): New. (enum tracepoint_type) <static_tracepoint>: New. (struct tracepoint) <handle>: Mention static tracepoints. (struct static_tracepoint_ctx): New. (CMD_BUF_SIZE): New. (add_tracepoint_action): Handle static tracepoint actions. (unprobe_marker_at): New. (clear_installed_tracepoints): Handle static tracepoints. (cmd_qtdp): Handle static tracepoints. (probe_marker_at): New. (cmd_qtstart): Handle static tracepoints. (response_tracepoint): Handle static tracepoints. (cmd_qtfstm, cmd_qtsstm, cmd_qtstmat): New. (handle_tracepoint_query): Handle qTfSTM, qTsSTM and qTSTMat. (get_context_regcache): Handle static tracepoints. (do_action_at_tracepoint): Handle static tracepoint actions. (traceframe_find_block_type): Handle static trace data blocks. (traceframe_read_sdata): New. (download_tracepoints): Download static tracepoint actions. [HAVE_UST] Include ust/ust.h, dlfcn.h, sys/socket.h, and sys/un.h. (GDB_PROBE_NAME): New. (ust_ops): New. (GET_UST_SYM): New. (USTF): New. (dlsym_ust): New. (ust_marker_to_static_tracepoint): New. (gdb_probe): New. (collect_ust_data_at_tracepoint): New. (gdb_ust_probe): New. (UNIX_PATH_MAX, SOCK_DIR): New. (gdb_ust_connect_sync_socket): New. (resume_thread, stop_thread): New. (run_inferior_command): New. (init_named_socket): New. (gdb_ust_socket_init): New. (cstr_to_hexstr): New. (next_st): New. (first_marker, next_marker): New. (response_ust_marker): New. (cmd_qtfstm, cmd_qtsstm): New. (unprobe_marker_at, probe_marker_at): New. (cmd_qtstmat, gdb_ust_thread): New. (gdb_ust_init): New. (initialize_tracepoint_ftlib): Call gdb_ust_init. * linux-amd64-ipa.c [HAVE_UST]: Include ust/processor.h (ST_REGENTRY): New. (x86_64_st_collect_regmap): New. (X86_64_NUM_ST_COLLECT_GREGS): New. (AMD64_RIP_REGNUM): New. (supply_static_tracepoint_registers): New. * linux-i386-ipa.c [HAVE_UST]: Include ust/processor.h (ST_REGENTRY): New. (i386_st_collect_regmap): New. (i386_NUM_ST_COLLECT_GREGS): New. (supply_static_tracepoint_registers): New. * server.c (handle_query): Handle qXfer:statictrace:read. <qSupported>: Report support for StaticTracepoints, and qXfer:statictrace:read features. * server.h (traceframe_read_sdata) (supply_static_tracepoint_registers): Declare. * remote-utils.c (convert_int_to_ascii, hexchars, ishex, tohex) (unpack_varlen_hex): Include in IPA build. * Makefile.in (ustlibs, ustinc): New. (IPA_OBJS): Add remote-utils-ipa.o. ($(IPA_LIB)): Link -ldl and -lpthread. (UST_CFLAGS): New. (IPAGENT_CFLAGS): Add UST_CFLAGS. * config.in, configure: Regenerate. gdb/ * NEWS: Mention new support for static tracepoints. (New packets): Mention qTfSTM, qTsSTM, qTSTMat and qXfer:statictrace:read. (New features in the GDB remote stub, GDBserver): Mention static tracepoints support using an UST based backend. (New commands): Mention "info static-tracepoint-markers" and "strace". * breakpoint.c (is_marker_spec): New. (is_tracepoint): Handle static tracepoints. (validate_commands_for_breakpoint): Static tracepoints can't do while-stepping. (static_tracepoints_here): New. (bpstat_what): Handle static tracepoints. (print_one_breakpoint_location, allocate_bp_location, mention): Ditto. (create_breakpoint_sal): Ditto. (decode_static_tracepoint_spec): New. (create_breakpoint): Replace `hardwareflag', and `traceflag' with `type_wanted'. Adjust. Handle static tracepoint marker locations. (break_command_1): Adjust. (update_static_tracepoint): New. (update_breakpoint_locations): Handle static tracepoints. (breakpoint_re_set_one): Handle static tracepoint marker locations. (disable_command, enable_command): Handle static tracepoints. (trace_command, ftrace_command): Adjust. (strace_command): New. (create_tracepoint_from_upload): Adjust. (save_breakpoints): Handle static tracepoints. (_initialize_breakpoint): Install the "strace" command. * breakpoint.h (enum bptype): New bp_static_tracepoint type. (struct breakpoint): New fields static_trace_marker_id and static_trace_marker_id_idx. (breakpoints_here_p): Declare. (create_breakpoint): Adjust. (static_tracepoints_here): Declare. * remote.c (struct remote_state) <static_tracepoints>: New field. (PACKET_qXfer_statictrace_read, PACKET_StaticTracepoints): New. (remote_static_tracepoint_marker_at): New. (remote_static_tracepoint_markers_by_strid): New. (remote_static_tracepoint_feature): New. (remote_disconnected_tracing_feature): Handle "StaticTracepoints". (remote_xfer_partial): Handle TARGET_OBJECT_STATIC_TRACE_DATA. (remote_supports_static_tracepoints): New. (remote_download_tracepoint): Download static tracepoints. (init_remote_ops): Install remote_static_tracepoint_marker_at and remote_static_tracepoint_markers_by_strid. (_initialize_remote): Install set|show remote static-tracepoints, and set|show remote read-sdata-object commands. * target.c (update_current_target): Inherit and default to_static_tracepoint_marker_at, and to_static_tracepoint_markers_by_strid. * target.h (static_tracepoint_marker): Forward declare. (enum target_object): New object TARGET_OBJECT_STATIC_TRACE_DATA. (static_tracepoint_marker_p): New typedef. (DEF_VEC_P(static_tracepoint_marker_p)): New VEC type. (struct target_ops): New fields to_static_tracepoint_marker_at and to_static_tracepoint_markers_by_strid. (target_static_tracepoint_marker_at) (target_static_tracepoint_markers_by_strid): New. * tracepoint.c: Include source.h. (validate_actionline): Handle $_sdata. (struct collection_list): New field strace_data. (add_static_trace_data): New. (clear_collection_list): Clear strace_data. (stringify_collection_list): Account for a possible static trace data collection. (encode_actions_1): Encode an $_sdata collection. (parse_tracepoint_definition): Handle static tracepoints. (parse_static_tracepoint_marker_definition): New. (release_static_tracepoint_marker): New. (print_one_static_tracepoint_marker): New. (info_static_tracepoint_markers_command): New. (sdata_make_value): New. (_initialize_tracepoint): Create the $_sdata convenience variable. Add the "info static-tracepoint-markers" command. Mention $_sdata in the "collect" command's help output. * tracepoint.h (struct static_tracepoint_marker): New. (parse_static_tracepoint_marker_definition) (release_static_tracepoint_marker): Declare. * mi/mi-cmd-break.c (mi_cmd_break_insert): Adjust. * python/py-breakpoint.c (bppy_new): Adjust. doc/ * gdb.texinfo (Convenience Variables): Document $_sdata. (Commands to Set Tracepoints): Describe static tracepoints. Add `Listing Static Tracepoint Markers' menu entry. Document "strace". (Tracepoint Action Lists): Document collecting $_sdata. (Listing Static Tracepoint Markers): New subsection. (Tracepoints support in gdbserver): Mention static tracepoints. (remote packets, enabling and disabling): Mention read-sdata-object. (General Query Packets) <qSupported>: Document qXfer:sdata:read and StaticTracepoint. Mention qTfSTM, qTsSTM and qTSTMat as tracepoint packets. Document qXfer:sdata:read. (Tracepoint packets): Document qTfSTM, qTsSTM and qTSTMat.
2010-07-01 12:36:12 +02:00
* Static tracepoints
Static tracepoints are calls in the user program into a tracing
library. One such library is a port of the LTTng kernel tracer to
userspace --- UST (LTTng Userspace Tracer, http://lttng.org/ust).
When debugging with GDBserver, GDB now supports combining the GDB
tracepoint machinery with such libraries. For example: the user can
use GDB to probe a static tracepoint marker (a call from the user
program into the tracing library) with the new "strace" command (see
"New commands" below). This creates a "static tracepoint" in the
breakpoint list, that can be manipulated with the same feature set
as fast and regular tracepoints. E.g., collect registers, local and
global variables, collect trace state variables, and define
tracepoint conditions. In addition, the user can collect extra
static tracepoint marker specific data, by collecting the new
$_sdata internal variable. When analyzing the trace buffer, you can
inspect $_sdata like any other variable available to GDB. For more
information, see the "Tracepoints" chapter in GDB user manual. New
remote packets have been defined to support static tracepoints, see
the "New remote packets" section below.
* Better reconstruction of tracepoints after disconnected tracing
GDB will attempt to download the original source form of tracepoint
definitions when starting a trace run, and then will upload these
upon reconnection to the target, resulting in a more accurate
reconstruction of the tracepoints that are in use on the target.
* Observer mode
You can now exercise direct control over the ways that GDB can
affect your program. For instance, you can disallow the setting of
breakpoints, so that the program can run continuously (assuming
non-stop mode). In addition, the "observer" variable is available
to switch all of the different controls; in observer mode, GDB
cannot affect the target's behavior at all, which is useful for
tasks like diagnosing live systems in the field.
* The new convenience variable $_thread holds the number of the
current thread.
Support for Windows OS Thread Information Block. * NEWS: Document new feature. * remote.c (PACKET_qGetTIBAddr): New enum element. (remote_get_tib_address): New function. (init_remote_ops): Set to_get_tib_address field to remote_get_tib_address. (_initialize_remote): Add add_packet_config_cmd for PACKET_qGetTIBAddr. * target.c (update_current_target): Set default value for new to_get_tib_address field. * target.h (target_ops): New field to_get_tib_address. (target_get_tib_address): New macro. * windows-nat.c (thread_info): Add thread_local_base field. (windows_add_thread): Add tlb argument of type 'void *'. (fake_create_process): Adapt windows_add_thread call. (get_windows_debug_event): Idem. (windows_get_tib_address): New function. (init_windows_ops): Set to_get_tib_address field to remote_get_tib_address. (_initialize_windows_nat): Replace info_w32_cmdlist initialization by a call to init_w32_command_list. (info_w32_command, info_w32_cmdlist): Removed from here... to windows-tdep.c file. * windows-tdep.h (info_w32_cmdlist): Declare. (init_w32_command_list): New external function declaration. * windows-tdep.c: Add several headers. (info_w32_cmdlist): to here, made global. (thread_information_32): New struct. (thread_information_64): New struct. (TIB_NAME): New char array. (MAX_TIB32, MAX_TIB64, FULL_TIB_SIZE): New constants. (maint_display_all_tib): New static variable. (windows_get_tlb_type): New function. (tlb_value_read, tlb_value_write): New functions. (tlb_value_funcs): New static struct. (tlb_make_value): New function. (display_one_tib): New function. (display_tib): New function. (show_maint_show_all_tib):New function. (info_w32_command): Moved from windows-nat.c. (init_w32_command_list): New function. (_initialize_windows_tdep): New function. New "maint set/show show-all-tib" command New "$_tlb" internal variable. gdbserver/ChangeLog entry: * server.c (handle_query): Handle 'qGetTIBAddr' query. * target.h (target_ops): New get_tib_address field. * win32-low.h (win32_thread_info): Add thread_local_base field. * win32-low.c (child_add_thread): Add tlb argument. Set thread_local_base field to TLB. (get_child_debug_event): Adapt to child_add_thread change. (win32_get_tib_address): New function. (win32_target_ops): Set get_tib_address field to win32_get_tib_address. * linux-low.c (linux_target_ops): Set get_tib_address field to NULL. doc/ChangeLog entry: gdb.texinfo ($_tlb): Document new automatic convinience variable. (info w32 thread-information-block): Document new command. (qGetTIBAddress): Document new gdbserver query. (maint set/show show-all-tib): Document new command.
2010-04-16 09:49:37 +02:00
* New remote packets
qGetTIBAddr
Return the address of the Windows Thread Information Block of a given thread.
qRelocInsn
In response to several of the tracepoint packets, the target may now
also respond with a number of intermediate `qRelocInsn' request
packets before the final result packet, to have GDB handle
relocating an instruction to execute at a different address. This
is particularly useful for stubs that support fast tracepoints. GDB
reports support for this feature in the qSupported packet.
Static tracepoints support, and UST integration. gdb/gdbserver/ * configure.ac: Handle --with-ust. substitute ustlibs and ustinc. * mem-break.c (uninsert_all_breakpoints) (reinsert_all_breakpoints): New. * mem-break.h (reinsert_all_breakpoints, uninsert_all_breakpoints): * tracepoint.c (ust_loaded, helper_thread_id, cmd_buf): New. (gdb_agent_ust_loaded, helper_thread_id) (gdb_agent_helper_thread_id): New macros. (struct ipa_sym_addresses): Add addr_ust_loaded, addr_helper_thread_id, addr_cmd_buf. (symbol_list): Add ust_loaded, helper_thread_id, cmd_buf. (in_process_agent_loaded_ust): New. (write_e_ust_not_loaded): New. (maybe_write_ipa_ust_not_loaded): New. (struct collect_static_trace_data_action): New. (enum tracepoint_type) <static_tracepoint>: New. (struct tracepoint) <handle>: Mention static tracepoints. (struct static_tracepoint_ctx): New. (CMD_BUF_SIZE): New. (add_tracepoint_action): Handle static tracepoint actions. (unprobe_marker_at): New. (clear_installed_tracepoints): Handle static tracepoints. (cmd_qtdp): Handle static tracepoints. (probe_marker_at): New. (cmd_qtstart): Handle static tracepoints. (response_tracepoint): Handle static tracepoints. (cmd_qtfstm, cmd_qtsstm, cmd_qtstmat): New. (handle_tracepoint_query): Handle qTfSTM, qTsSTM and qTSTMat. (get_context_regcache): Handle static tracepoints. (do_action_at_tracepoint): Handle static tracepoint actions. (traceframe_find_block_type): Handle static trace data blocks. (traceframe_read_sdata): New. (download_tracepoints): Download static tracepoint actions. [HAVE_UST] Include ust/ust.h, dlfcn.h, sys/socket.h, and sys/un.h. (GDB_PROBE_NAME): New. (ust_ops): New. (GET_UST_SYM): New. (USTF): New. (dlsym_ust): New. (ust_marker_to_static_tracepoint): New. (gdb_probe): New. (collect_ust_data_at_tracepoint): New. (gdb_ust_probe): New. (UNIX_PATH_MAX, SOCK_DIR): New. (gdb_ust_connect_sync_socket): New. (resume_thread, stop_thread): New. (run_inferior_command): New. (init_named_socket): New. (gdb_ust_socket_init): New. (cstr_to_hexstr): New. (next_st): New. (first_marker, next_marker): New. (response_ust_marker): New. (cmd_qtfstm, cmd_qtsstm): New. (unprobe_marker_at, probe_marker_at): New. (cmd_qtstmat, gdb_ust_thread): New. (gdb_ust_init): New. (initialize_tracepoint_ftlib): Call gdb_ust_init. * linux-amd64-ipa.c [HAVE_UST]: Include ust/processor.h (ST_REGENTRY): New. (x86_64_st_collect_regmap): New. (X86_64_NUM_ST_COLLECT_GREGS): New. (AMD64_RIP_REGNUM): New. (supply_static_tracepoint_registers): New. * linux-i386-ipa.c [HAVE_UST]: Include ust/processor.h (ST_REGENTRY): New. (i386_st_collect_regmap): New. (i386_NUM_ST_COLLECT_GREGS): New. (supply_static_tracepoint_registers): New. * server.c (handle_query): Handle qXfer:statictrace:read. <qSupported>: Report support for StaticTracepoints, and qXfer:statictrace:read features. * server.h (traceframe_read_sdata) (supply_static_tracepoint_registers): Declare. * remote-utils.c (convert_int_to_ascii, hexchars, ishex, tohex) (unpack_varlen_hex): Include in IPA build. * Makefile.in (ustlibs, ustinc): New. (IPA_OBJS): Add remote-utils-ipa.o. ($(IPA_LIB)): Link -ldl and -lpthread. (UST_CFLAGS): New. (IPAGENT_CFLAGS): Add UST_CFLAGS. * config.in, configure: Regenerate. gdb/ * NEWS: Mention new support for static tracepoints. (New packets): Mention qTfSTM, qTsSTM, qTSTMat and qXfer:statictrace:read. (New features in the GDB remote stub, GDBserver): Mention static tracepoints support using an UST based backend. (New commands): Mention "info static-tracepoint-markers" and "strace". * breakpoint.c (is_marker_spec): New. (is_tracepoint): Handle static tracepoints. (validate_commands_for_breakpoint): Static tracepoints can't do while-stepping. (static_tracepoints_here): New. (bpstat_what): Handle static tracepoints. (print_one_breakpoint_location, allocate_bp_location, mention): Ditto. (create_breakpoint_sal): Ditto. (decode_static_tracepoint_spec): New. (create_breakpoint): Replace `hardwareflag', and `traceflag' with `type_wanted'. Adjust. Handle static tracepoint marker locations. (break_command_1): Adjust. (update_static_tracepoint): New. (update_breakpoint_locations): Handle static tracepoints. (breakpoint_re_set_one): Handle static tracepoint marker locations. (disable_command, enable_command): Handle static tracepoints. (trace_command, ftrace_command): Adjust. (strace_command): New. (create_tracepoint_from_upload): Adjust. (save_breakpoints): Handle static tracepoints. (_initialize_breakpoint): Install the "strace" command. * breakpoint.h (enum bptype): New bp_static_tracepoint type. (struct breakpoint): New fields static_trace_marker_id and static_trace_marker_id_idx. (breakpoints_here_p): Declare. (create_breakpoint): Adjust. (static_tracepoints_here): Declare. * remote.c (struct remote_state) <static_tracepoints>: New field. (PACKET_qXfer_statictrace_read, PACKET_StaticTracepoints): New. (remote_static_tracepoint_marker_at): New. (remote_static_tracepoint_markers_by_strid): New. (remote_static_tracepoint_feature): New. (remote_disconnected_tracing_feature): Handle "StaticTracepoints". (remote_xfer_partial): Handle TARGET_OBJECT_STATIC_TRACE_DATA. (remote_supports_static_tracepoints): New. (remote_download_tracepoint): Download static tracepoints. (init_remote_ops): Install remote_static_tracepoint_marker_at and remote_static_tracepoint_markers_by_strid. (_initialize_remote): Install set|show remote static-tracepoints, and set|show remote read-sdata-object commands. * target.c (update_current_target): Inherit and default to_static_tracepoint_marker_at, and to_static_tracepoint_markers_by_strid. * target.h (static_tracepoint_marker): Forward declare. (enum target_object): New object TARGET_OBJECT_STATIC_TRACE_DATA. (static_tracepoint_marker_p): New typedef. (DEF_VEC_P(static_tracepoint_marker_p)): New VEC type. (struct target_ops): New fields to_static_tracepoint_marker_at and to_static_tracepoint_markers_by_strid. (target_static_tracepoint_marker_at) (target_static_tracepoint_markers_by_strid): New. * tracepoint.c: Include source.h. (validate_actionline): Handle $_sdata. (struct collection_list): New field strace_data. (add_static_trace_data): New. (clear_collection_list): Clear strace_data. (stringify_collection_list): Account for a possible static trace data collection. (encode_actions_1): Encode an $_sdata collection. (parse_tracepoint_definition): Handle static tracepoints. (parse_static_tracepoint_marker_definition): New. (release_static_tracepoint_marker): New. (print_one_static_tracepoint_marker): New. (info_static_tracepoint_markers_command): New. (sdata_make_value): New. (_initialize_tracepoint): Create the $_sdata convenience variable. Add the "info static-tracepoint-markers" command. Mention $_sdata in the "collect" command's help output. * tracepoint.h (struct static_tracepoint_marker): New. (parse_static_tracepoint_marker_definition) (release_static_tracepoint_marker): Declare. * mi/mi-cmd-break.c (mi_cmd_break_insert): Adjust. * python/py-breakpoint.c (bppy_new): Adjust. doc/ * gdb.texinfo (Convenience Variables): Document $_sdata. (Commands to Set Tracepoints): Describe static tracepoints. Add `Listing Static Tracepoint Markers' menu entry. Document "strace". (Tracepoint Action Lists): Document collecting $_sdata. (Listing Static Tracepoint Markers): New subsection. (Tracepoints support in gdbserver): Mention static tracepoints. (remote packets, enabling and disabling): Mention read-sdata-object. (General Query Packets) <qSupported>: Document qXfer:sdata:read and StaticTracepoint. Mention qTfSTM, qTsSTM and qTSTMat as tracepoint packets. Document qXfer:sdata:read. (Tracepoint packets): Document qTfSTM, qTsSTM and qTSTMat.
2010-07-01 12:36:12 +02:00
qTfSTM, qTsSTM
List static tracepoint markers in the target program.
qTSTMat
List static tracepoint markers at a given address in the target
program.
qXfer:statictrace:read
Read the static trace data collected (by a `collect $_sdata'
tracepoint action). The remote stub reports support for this packet
to gdb's qSupported query.
QAllow
Send the current settings of GDB's permission flags.
QTDPsrc
Send part of the source (textual) form of a tracepoint definition,
which includes location, conditional, and action list.
* The source command now accepts a -s option to force searching for the
script in the source search path even if the script name specifies
a directory.
2010-04-09 17:26:54 +02:00
* New features in the GDB remote stub, GDBserver
Static tracepoints support, and UST integration. gdb/gdbserver/ * configure.ac: Handle --with-ust. substitute ustlibs and ustinc. * mem-break.c (uninsert_all_breakpoints) (reinsert_all_breakpoints): New. * mem-break.h (reinsert_all_breakpoints, uninsert_all_breakpoints): * tracepoint.c (ust_loaded, helper_thread_id, cmd_buf): New. (gdb_agent_ust_loaded, helper_thread_id) (gdb_agent_helper_thread_id): New macros. (struct ipa_sym_addresses): Add addr_ust_loaded, addr_helper_thread_id, addr_cmd_buf. (symbol_list): Add ust_loaded, helper_thread_id, cmd_buf. (in_process_agent_loaded_ust): New. (write_e_ust_not_loaded): New. (maybe_write_ipa_ust_not_loaded): New. (struct collect_static_trace_data_action): New. (enum tracepoint_type) <static_tracepoint>: New. (struct tracepoint) <handle>: Mention static tracepoints. (struct static_tracepoint_ctx): New. (CMD_BUF_SIZE): New. (add_tracepoint_action): Handle static tracepoint actions. (unprobe_marker_at): New. (clear_installed_tracepoints): Handle static tracepoints. (cmd_qtdp): Handle static tracepoints. (probe_marker_at): New. (cmd_qtstart): Handle static tracepoints. (response_tracepoint): Handle static tracepoints. (cmd_qtfstm, cmd_qtsstm, cmd_qtstmat): New. (handle_tracepoint_query): Handle qTfSTM, qTsSTM and qTSTMat. (get_context_regcache): Handle static tracepoints. (do_action_at_tracepoint): Handle static tracepoint actions. (traceframe_find_block_type): Handle static trace data blocks. (traceframe_read_sdata): New. (download_tracepoints): Download static tracepoint actions. [HAVE_UST] Include ust/ust.h, dlfcn.h, sys/socket.h, and sys/un.h. (GDB_PROBE_NAME): New. (ust_ops): New. (GET_UST_SYM): New. (USTF): New. (dlsym_ust): New. (ust_marker_to_static_tracepoint): New. (gdb_probe): New. (collect_ust_data_at_tracepoint): New. (gdb_ust_probe): New. (UNIX_PATH_MAX, SOCK_DIR): New. (gdb_ust_connect_sync_socket): New. (resume_thread, stop_thread): New. (run_inferior_command): New. (init_named_socket): New. (gdb_ust_socket_init): New. (cstr_to_hexstr): New. (next_st): New. (first_marker, next_marker): New. (response_ust_marker): New. (cmd_qtfstm, cmd_qtsstm): New. (unprobe_marker_at, probe_marker_at): New. (cmd_qtstmat, gdb_ust_thread): New. (gdb_ust_init): New. (initialize_tracepoint_ftlib): Call gdb_ust_init. * linux-amd64-ipa.c [HAVE_UST]: Include ust/processor.h (ST_REGENTRY): New. (x86_64_st_collect_regmap): New. (X86_64_NUM_ST_COLLECT_GREGS): New. (AMD64_RIP_REGNUM): New. (supply_static_tracepoint_registers): New. * linux-i386-ipa.c [HAVE_UST]: Include ust/processor.h (ST_REGENTRY): New. (i386_st_collect_regmap): New. (i386_NUM_ST_COLLECT_GREGS): New. (supply_static_tracepoint_registers): New. * server.c (handle_query): Handle qXfer:statictrace:read. <qSupported>: Report support for StaticTracepoints, and qXfer:statictrace:read features. * server.h (traceframe_read_sdata) (supply_static_tracepoint_registers): Declare. * remote-utils.c (convert_int_to_ascii, hexchars, ishex, tohex) (unpack_varlen_hex): Include in IPA build. * Makefile.in (ustlibs, ustinc): New. (IPA_OBJS): Add remote-utils-ipa.o. ($(IPA_LIB)): Link -ldl and -lpthread. (UST_CFLAGS): New. (IPAGENT_CFLAGS): Add UST_CFLAGS. * config.in, configure: Regenerate. gdb/ * NEWS: Mention new support for static tracepoints. (New packets): Mention qTfSTM, qTsSTM, qTSTMat and qXfer:statictrace:read. (New features in the GDB remote stub, GDBserver): Mention static tracepoints support using an UST based backend. (New commands): Mention "info static-tracepoint-markers" and "strace". * breakpoint.c (is_marker_spec): New. (is_tracepoint): Handle static tracepoints. (validate_commands_for_breakpoint): Static tracepoints can't do while-stepping. (static_tracepoints_here): New. (bpstat_what): Handle static tracepoints. (print_one_breakpoint_location, allocate_bp_location, mention): Ditto. (create_breakpoint_sal): Ditto. (decode_static_tracepoint_spec): New. (create_breakpoint): Replace `hardwareflag', and `traceflag' with `type_wanted'. Adjust. Handle static tracepoint marker locations. (break_command_1): Adjust. (update_static_tracepoint): New. (update_breakpoint_locations): Handle static tracepoints. (breakpoint_re_set_one): Handle static tracepoint marker locations. (disable_command, enable_command): Handle static tracepoints. (trace_command, ftrace_command): Adjust. (strace_command): New. (create_tracepoint_from_upload): Adjust. (save_breakpoints): Handle static tracepoints. (_initialize_breakpoint): Install the "strace" command. * breakpoint.h (enum bptype): New bp_static_tracepoint type. (struct breakpoint): New fields static_trace_marker_id and static_trace_marker_id_idx. (breakpoints_here_p): Declare. (create_breakpoint): Adjust. (static_tracepoints_here): Declare. * remote.c (struct remote_state) <static_tracepoints>: New field. (PACKET_qXfer_statictrace_read, PACKET_StaticTracepoints): New. (remote_static_tracepoint_marker_at): New. (remote_static_tracepoint_markers_by_strid): New. (remote_static_tracepoint_feature): New. (remote_disconnected_tracing_feature): Handle "StaticTracepoints". (remote_xfer_partial): Handle TARGET_OBJECT_STATIC_TRACE_DATA. (remote_supports_static_tracepoints): New. (remote_download_tracepoint): Download static tracepoints. (init_remote_ops): Install remote_static_tracepoint_marker_at and remote_static_tracepoint_markers_by_strid. (_initialize_remote): Install set|show remote static-tracepoints, and set|show remote read-sdata-object commands. * target.c (update_current_target): Inherit and default to_static_tracepoint_marker_at, and to_static_tracepoint_markers_by_strid. * target.h (static_tracepoint_marker): Forward declare. (enum target_object): New object TARGET_OBJECT_STATIC_TRACE_DATA. (static_tracepoint_marker_p): New typedef. (DEF_VEC_P(static_tracepoint_marker_p)): New VEC type. (struct target_ops): New fields to_static_tracepoint_marker_at and to_static_tracepoint_markers_by_strid. (target_static_tracepoint_marker_at) (target_static_tracepoint_markers_by_strid): New. * tracepoint.c: Include source.h. (validate_actionline): Handle $_sdata. (struct collection_list): New field strace_data. (add_static_trace_data): New. (clear_collection_list): Clear strace_data. (stringify_collection_list): Account for a possible static trace data collection. (encode_actions_1): Encode an $_sdata collection. (parse_tracepoint_definition): Handle static tracepoints. (parse_static_tracepoint_marker_definition): New. (release_static_tracepoint_marker): New. (print_one_static_tracepoint_marker): New. (info_static_tracepoint_markers_command): New. (sdata_make_value): New. (_initialize_tracepoint): Create the $_sdata convenience variable. Add the "info static-tracepoint-markers" command. Mention $_sdata in the "collect" command's help output. * tracepoint.h (struct static_tracepoint_marker): New. (parse_static_tracepoint_marker_definition) (release_static_tracepoint_marker): Declare. * mi/mi-cmd-break.c (mi_cmd_break_insert): Adjust. * python/py-breakpoint.c (bppy_new): Adjust. doc/ * gdb.texinfo (Convenience Variables): Document $_sdata. (Commands to Set Tracepoints): Describe static tracepoints. Add `Listing Static Tracepoint Markers' menu entry. Document "strace". (Tracepoint Action Lists): Document collecting $_sdata. (Listing Static Tracepoint Markers): New subsection. (Tracepoints support in gdbserver): Mention static tracepoints. (remote packets, enabling and disabling): Mention read-sdata-object. (General Query Packets) <qSupported>: Document qXfer:sdata:read and StaticTracepoint. Mention qTfSTM, qTsSTM and qTSTMat as tracepoint packets. Document qXfer:sdata:read. (Tracepoint packets): Document qTfSTM, qTsSTM and qTSTMat.
2010-07-01 12:36:12 +02:00
- GDBserver now support tracepoints (including fast tracepoints, and
static tracepoints). The feature is currently supported by the
i386-linux and amd64-linux builds. See the "Tracepoints support
in gdbserver" section in the manual for more information.
GDBserver JIT compiles the tracepoint's conditional agent
expression bytecode into native code whenever possible for low
overhead dynamic tracepoints conditionals. For such tracepoints,
an expression that examines program state is evaluated when the
tracepoint is reached, in order to determine whether to capture
trace data. If the condition is simple and false, processing the
tracepoint finishes very quickly and no data is gathered.
GDBserver interfaces with the UST (LTTng Userspace Tracer) library
for static tracepoints support.
2010-04-09 17:26:54 +02:00
- GDBserver now supports x86_64 Windows 64-bit debugging.
* GDB now sends xmlRegisters= in qSupported packet to indicate that
it understands register description.
* The --batch flag now disables pagination and queries.
* X86 general purpose registers
GDB now supports reading/writing byte, word and double-word x86
general purpose registers directly. This means you can use, say,
$ah or $ax to refer, respectively, to the byte register AH and
16-bit word register AX that are actually portions of the 32-bit
register EAX or 64-bit register RAX.
gdb PR breakpoints/9352: * NEWS: Mention changes to `commands' and `rbreak'. * symtab.c (do_end_rbreak_breakpoints): New function. (rbreak_command): Call start_rbreak_breakpoints; arrange to call end_rbreak_breakpoints. * breakpoint.c (breakpoint_count, tracepoint_count): Now static. (set_breakpoint_count): Likewise. Clear last_was_multi. (multi_start, multi_end, last_was_multi): New globals. (start_rbreak_breakpoints, end_rbreak_breakpoints): New functions. (struct commands_info): New (do_map_commands_command): New function. (commands_command_1): New function. (commands_command): Use it. (commands_from_control_command): Likewise. (do_delete_breakpoint): New function. (delete_command): Use it. (map_breakpoint_numbers): Add 'data' argument. Pass to callback. (do_map_disable_breakpoint): New function. (disable_command): Use it. (do_map_enable_breakpoint): New function. (enable_command): Use it. (enable_once_breakpoint): Add argument. (enable_once_command): Update. (enable_delete_breakpoint): Add argument. (enable_delete_command): Update. (break_command_really): Set last_was_multi when needed. (check_tracepoint_command): Fix formatting. (validate_commands_for_breakpoint): New function. (breakpoint_set_commands): Use it. (tracepoint_save_command): Update. * breakpoint.h (start_rbreak_breakpoints, end_rbreak_breakpoints): Declare. gdb/doc PR breakpoints/9352: * gdb.texinfo (Break Commands): Update. gdb/testsuite PR breakpoints/9352: * gdb.base/default.exp: Update. * gdb.base/commands.exp: Update. * gdb.cp/extern-c.exp: Test setting commands on multiple breakpoints at once.
2010-03-24 22:24:09 +01:00
* The `commands' command now accepts a range of breakpoints to modify.
A plain `commands' following a command that creates multiple
breakpoints affects all the breakpoints set by that command. This
applies to breakpoints set by `rbreak', and also applies when a
single `break' command creates multiple breakpoints (e.g.,
breakpoints on overloaded c++ functions).
gdb PR breakpoints/9352: * NEWS: Mention changes to `commands' and `rbreak'. * symtab.c (do_end_rbreak_breakpoints): New function. (rbreak_command): Call start_rbreak_breakpoints; arrange to call end_rbreak_breakpoints. * breakpoint.c (breakpoint_count, tracepoint_count): Now static. (set_breakpoint_count): Likewise. Clear last_was_multi. (multi_start, multi_end, last_was_multi): New globals. (start_rbreak_breakpoints, end_rbreak_breakpoints): New functions. (struct commands_info): New (do_map_commands_command): New function. (commands_command_1): New function. (commands_command): Use it. (commands_from_control_command): Likewise. (do_delete_breakpoint): New function. (delete_command): Use it. (map_breakpoint_numbers): Add 'data' argument. Pass to callback. (do_map_disable_breakpoint): New function. (disable_command): Use it. (do_map_enable_breakpoint): New function. (enable_command): Use it. (enable_once_breakpoint): Add argument. (enable_once_command): Update. (enable_delete_breakpoint): Add argument. (enable_delete_command): Update. (break_command_really): Set last_was_multi when needed. (check_tracepoint_command): Fix formatting. (validate_commands_for_breakpoint): New function. (breakpoint_set_commands): Use it. (tracepoint_save_command): Update. * breakpoint.h (start_rbreak_breakpoints, end_rbreak_breakpoints): Declare. gdb/doc PR breakpoints/9352: * gdb.texinfo (Break Commands): Update. gdb/testsuite PR breakpoints/9352: * gdb.base/default.exp: Update. * gdb.base/commands.exp: Update. * gdb.cp/extern-c.exp: Test setting commands on multiple breakpoints at once.
2010-03-24 22:24:09 +01:00
* The `rbreak' command now accepts a filename specification as part of
its argument, limiting the functions selected by the regex to those
in the specified file.
* Support for remote debugging Windows and SymbianOS shared libraries
from Unix hosts has been improved. Non Windows GDB builds now can
understand target reported file names that follow MS-DOS based file
system semantics, such as file names that include drive letters and
use the backslash character as directory separator. This makes it
possible to transparently use the "set sysroot" and "set
solib-search-path" on Unix hosts to point as host copies of the
target's shared libraries. See the new command "set
target-file-system-kind" described below, and the "Commands to
specify files" section in the user manual for more information.
PR breakpoints/8554. Implement `save-breakpoints'. gdb/ * breakpoint.c (save_cmdlist): New. (breakpoint_set_cmdlist, breakpoint_show_cmdlist): Moved up close to save_cmdlist. (print_recreate_catch_fork): New. (catch_fork_breakpoint_ops): Install it. (print_recreate_catch_vfork): New. (catch_vfork_breakpoint_ops): Install it. (print_recreate_catch_syscall): New. (catch_syscall_breakpoint_ops): Install it. (print_recreate_catch_exec): New. (catch_exec_breakpoint_ops): Install it. (print_recreate_exception_catchpoint): New. (gnu_v3_exception_catchpoint_ops): Install it. (save_breakpoints): New, based on tracepoint_save_command, but handle all breakpoint types. (save_breakpoints_command): New. (tracepoint_save_command): Rename to... (save_tracepoints_command): ... this, and reimplement using save_breakpoints. (save_command): New. (_initialize_breakpoints): Install the "save" command prefix. Install the "save breakpoints" command. Make "save-tracepoints" a deprecated alias for "save tracepoints". * breakpoint.h (struct breakpoint_ops): New field `print_recreate'. * ada-lang.c (print_recreate_exception): New. (print_recreate_catch_exception): New. (catch_exception_breakpoint_ops): Install it. (print_recreate_catch_exception_unhandled): New. (catch_exception_unhandled_breakpoint_ops): Install it. (print_recreate_catch_assert): New. (catch_assert_breakpoint_ops): Install it. * NEWS: Mention the new `save breakpoints' command. Mention the new `save tracepoints' alias and that `save-tracepoints' is now deprecated. gdb/doc/ * gdb.texinfo (Save Breakpoints): New node. (save-tracepoints): Rename to ... (save tracepoints): ... this. Mention that `save-tracepoints' is a deprecated alias to `save tracepoints'. gdb/testsuite/ * gdb.trace/save-trace.exp: Adjust.
2010-04-19 02:48:44 +02:00
* New commands
2010-06-24 08:12:15 +02:00
eval template, expressions...
Convert the values of one or more expressions under the control
of the string template to a command line, and call it.
set target-file-system-kind unix|dos-based|auto
show target-file-system-kind
Set or show the assumed file system kind for target reported file
names.
PR breakpoints/8554. Implement `save-breakpoints'. gdb/ * breakpoint.c (save_cmdlist): New. (breakpoint_set_cmdlist, breakpoint_show_cmdlist): Moved up close to save_cmdlist. (print_recreate_catch_fork): New. (catch_fork_breakpoint_ops): Install it. (print_recreate_catch_vfork): New. (catch_vfork_breakpoint_ops): Install it. (print_recreate_catch_syscall): New. (catch_syscall_breakpoint_ops): Install it. (print_recreate_catch_exec): New. (catch_exec_breakpoint_ops): Install it. (print_recreate_exception_catchpoint): New. (gnu_v3_exception_catchpoint_ops): Install it. (save_breakpoints): New, based on tracepoint_save_command, but handle all breakpoint types. (save_breakpoints_command): New. (tracepoint_save_command): Rename to... (save_tracepoints_command): ... this, and reimplement using save_breakpoints. (save_command): New. (_initialize_breakpoints): Install the "save" command prefix. Install the "save breakpoints" command. Make "save-tracepoints" a deprecated alias for "save tracepoints". * breakpoint.h (struct breakpoint_ops): New field `print_recreate'. * ada-lang.c (print_recreate_exception): New. (print_recreate_catch_exception): New. (catch_exception_breakpoint_ops): Install it. (print_recreate_catch_exception_unhandled): New. (catch_exception_unhandled_breakpoint_ops): Install it. (print_recreate_catch_assert): New. (catch_assert_breakpoint_ops): Install it. * NEWS: Mention the new `save breakpoints' command. Mention the new `save tracepoints' alias and that `save-tracepoints' is now deprecated. gdb/doc/ * gdb.texinfo (Save Breakpoints): New node. (save-tracepoints): Rename to ... (save tracepoints): ... this. Mention that `save-tracepoints' is a deprecated alias to `save tracepoints'. gdb/testsuite/ * gdb.trace/save-trace.exp: Adjust.
2010-04-19 02:48:44 +02:00
save breakpoints <filename>
Save all current breakpoint definitions to a file suitable for use
in a later debugging session. To read the saved breakpoint
definitions, use the `source' command.
`save tracepoints' is a new alias for `save-tracepoints'. The latter
is now deprecated.
Static tracepoints support, and UST integration. gdb/gdbserver/ * configure.ac: Handle --with-ust. substitute ustlibs and ustinc. * mem-break.c (uninsert_all_breakpoints) (reinsert_all_breakpoints): New. * mem-break.h (reinsert_all_breakpoints, uninsert_all_breakpoints): * tracepoint.c (ust_loaded, helper_thread_id, cmd_buf): New. (gdb_agent_ust_loaded, helper_thread_id) (gdb_agent_helper_thread_id): New macros. (struct ipa_sym_addresses): Add addr_ust_loaded, addr_helper_thread_id, addr_cmd_buf. (symbol_list): Add ust_loaded, helper_thread_id, cmd_buf. (in_process_agent_loaded_ust): New. (write_e_ust_not_loaded): New. (maybe_write_ipa_ust_not_loaded): New. (struct collect_static_trace_data_action): New. (enum tracepoint_type) <static_tracepoint>: New. (struct tracepoint) <handle>: Mention static tracepoints. (struct static_tracepoint_ctx): New. (CMD_BUF_SIZE): New. (add_tracepoint_action): Handle static tracepoint actions. (unprobe_marker_at): New. (clear_installed_tracepoints): Handle static tracepoints. (cmd_qtdp): Handle static tracepoints. (probe_marker_at): New. (cmd_qtstart): Handle static tracepoints. (response_tracepoint): Handle static tracepoints. (cmd_qtfstm, cmd_qtsstm, cmd_qtstmat): New. (handle_tracepoint_query): Handle qTfSTM, qTsSTM and qTSTMat. (get_context_regcache): Handle static tracepoints. (do_action_at_tracepoint): Handle static tracepoint actions. (traceframe_find_block_type): Handle static trace data blocks. (traceframe_read_sdata): New. (download_tracepoints): Download static tracepoint actions. [HAVE_UST] Include ust/ust.h, dlfcn.h, sys/socket.h, and sys/un.h. (GDB_PROBE_NAME): New. (ust_ops): New. (GET_UST_SYM): New. (USTF): New. (dlsym_ust): New. (ust_marker_to_static_tracepoint): New. (gdb_probe): New. (collect_ust_data_at_tracepoint): New. (gdb_ust_probe): New. (UNIX_PATH_MAX, SOCK_DIR): New. (gdb_ust_connect_sync_socket): New. (resume_thread, stop_thread): New. (run_inferior_command): New. (init_named_socket): New. (gdb_ust_socket_init): New. (cstr_to_hexstr): New. (next_st): New. (first_marker, next_marker): New. (response_ust_marker): New. (cmd_qtfstm, cmd_qtsstm): New. (unprobe_marker_at, probe_marker_at): New. (cmd_qtstmat, gdb_ust_thread): New. (gdb_ust_init): New. (initialize_tracepoint_ftlib): Call gdb_ust_init. * linux-amd64-ipa.c [HAVE_UST]: Include ust/processor.h (ST_REGENTRY): New. (x86_64_st_collect_regmap): New. (X86_64_NUM_ST_COLLECT_GREGS): New. (AMD64_RIP_REGNUM): New. (supply_static_tracepoint_registers): New. * linux-i386-ipa.c [HAVE_UST]: Include ust/processor.h (ST_REGENTRY): New. (i386_st_collect_regmap): New. (i386_NUM_ST_COLLECT_GREGS): New. (supply_static_tracepoint_registers): New. * server.c (handle_query): Handle qXfer:statictrace:read. <qSupported>: Report support for StaticTracepoints, and qXfer:statictrace:read features. * server.h (traceframe_read_sdata) (supply_static_tracepoint_registers): Declare. * remote-utils.c (convert_int_to_ascii, hexchars, ishex, tohex) (unpack_varlen_hex): Include in IPA build. * Makefile.in (ustlibs, ustinc): New. (IPA_OBJS): Add remote-utils-ipa.o. ($(IPA_LIB)): Link -ldl and -lpthread. (UST_CFLAGS): New. (IPAGENT_CFLAGS): Add UST_CFLAGS. * config.in, configure: Regenerate. gdb/ * NEWS: Mention new support for static tracepoints. (New packets): Mention qTfSTM, qTsSTM, qTSTMat and qXfer:statictrace:read. (New features in the GDB remote stub, GDBserver): Mention static tracepoints support using an UST based backend. (New commands): Mention "info static-tracepoint-markers" and "strace". * breakpoint.c (is_marker_spec): New. (is_tracepoint): Handle static tracepoints. (validate_commands_for_breakpoint): Static tracepoints can't do while-stepping. (static_tracepoints_here): New. (bpstat_what): Handle static tracepoints. (print_one_breakpoint_location, allocate_bp_location, mention): Ditto. (create_breakpoint_sal): Ditto. (decode_static_tracepoint_spec): New. (create_breakpoint): Replace `hardwareflag', and `traceflag' with `type_wanted'. Adjust. Handle static tracepoint marker locations. (break_command_1): Adjust. (update_static_tracepoint): New. (update_breakpoint_locations): Handle static tracepoints. (breakpoint_re_set_one): Handle static tracepoint marker locations. (disable_command, enable_command): Handle static tracepoints. (trace_command, ftrace_command): Adjust. (strace_command): New. (create_tracepoint_from_upload): Adjust. (save_breakpoints): Handle static tracepoints. (_initialize_breakpoint): Install the "strace" command. * breakpoint.h (enum bptype): New bp_static_tracepoint type. (struct breakpoint): New fields static_trace_marker_id and static_trace_marker_id_idx. (breakpoints_here_p): Declare. (create_breakpoint): Adjust. (static_tracepoints_here): Declare. * remote.c (struct remote_state) <static_tracepoints>: New field. (PACKET_qXfer_statictrace_read, PACKET_StaticTracepoints): New. (remote_static_tracepoint_marker_at): New. (remote_static_tracepoint_markers_by_strid): New. (remote_static_tracepoint_feature): New. (remote_disconnected_tracing_feature): Handle "StaticTracepoints". (remote_xfer_partial): Handle TARGET_OBJECT_STATIC_TRACE_DATA. (remote_supports_static_tracepoints): New. (remote_download_tracepoint): Download static tracepoints. (init_remote_ops): Install remote_static_tracepoint_marker_at and remote_static_tracepoint_markers_by_strid. (_initialize_remote): Install set|show remote static-tracepoints, and set|show remote read-sdata-object commands. * target.c (update_current_target): Inherit and default to_static_tracepoint_marker_at, and to_static_tracepoint_markers_by_strid. * target.h (static_tracepoint_marker): Forward declare. (enum target_object): New object TARGET_OBJECT_STATIC_TRACE_DATA. (static_tracepoint_marker_p): New typedef. (DEF_VEC_P(static_tracepoint_marker_p)): New VEC type. (struct target_ops): New fields to_static_tracepoint_marker_at and to_static_tracepoint_markers_by_strid. (target_static_tracepoint_marker_at) (target_static_tracepoint_markers_by_strid): New. * tracepoint.c: Include source.h. (validate_actionline): Handle $_sdata. (struct collection_list): New field strace_data. (add_static_trace_data): New. (clear_collection_list): Clear strace_data. (stringify_collection_list): Account for a possible static trace data collection. (encode_actions_1): Encode an $_sdata collection. (parse_tracepoint_definition): Handle static tracepoints. (parse_static_tracepoint_marker_definition): New. (release_static_tracepoint_marker): New. (print_one_static_tracepoint_marker): New. (info_static_tracepoint_markers_command): New. (sdata_make_value): New. (_initialize_tracepoint): Create the $_sdata convenience variable. Add the "info static-tracepoint-markers" command. Mention $_sdata in the "collect" command's help output. * tracepoint.h (struct static_tracepoint_marker): New. (parse_static_tracepoint_marker_definition) (release_static_tracepoint_marker): Declare. * mi/mi-cmd-break.c (mi_cmd_break_insert): Adjust. * python/py-breakpoint.c (bppy_new): Adjust. doc/ * gdb.texinfo (Convenience Variables): Document $_sdata. (Commands to Set Tracepoints): Describe static tracepoints. Add `Listing Static Tracepoint Markers' menu entry. Document "strace". (Tracepoint Action Lists): Document collecting $_sdata. (Listing Static Tracepoint Markers): New subsection. (Tracepoints support in gdbserver): Mention static tracepoints. (remote packets, enabling and disabling): Mention read-sdata-object. (General Query Packets) <qSupported>: Document qXfer:sdata:read and StaticTracepoint. Mention qTfSTM, qTsSTM and qTSTMat as tracepoint packets. Document qXfer:sdata:read. (Tracepoint packets): Document qTfSTM, qTsSTM and qTSTMat.
2010-07-01 12:36:12 +02:00
info static-tracepoint-markers
Display information about static tracepoint markers in the target.
strace FN | FILE:LINE | *ADDR | -m MARKER_ID
Define a static tracepoint by probing a marker at the given
function, line, address, or marker ID.
set observer on|off
show observer
Enable and disable observer mode.
set may-write-registers on|off
set may-write-memory on|off
set may-insert-breakpoints on|off
set may-insert-tracepoints on|off
set may-insert-fast-tracepoints on|off
set may-interrupt on|off
Set individual permissions for GDB effects on the target. Note that
some of these settings can have undesirable or surprising
consequences, particularly when changed in the middle of a session.
For instance, disabling the writing of memory can prevent
breakpoints from being inserted, cause single-stepping to fail, or
even crash your program, if you disable after breakpoints have been
inserted. However, GDB should not crash.
set record memory-query on|off
show record memory-query
Control whether to stop the inferior if memory changes caused
by an instruction cannot be recorded.
* Changed commands
disassemble
The disassemble command now supports "start,+length" form of two arguments.
2010-02-24 Phil Muldoon <pmuldoon@redhat.com> Tom Tromey <tromey@redhat.com> Thiago Jung Bauermann <bauerman@br.ibm.com> * python/python.c (_initialize_python): Call gdbpy_initialize_symtabs, gdbpy_initialize_symbols and gdbpy_initialize_blocks. * python/python-internal.h: Declare struct symbol, block and symtab_and_line. Declare block_object_type and symbol_object_type (gdbpy_lookup_symbol gdbpy_block_for_pc) (symtab_and_line_to_sal_object, symtab_to_symtab_object) (symbol_to_symbol_object, block_to_block_object) (gdbpy_initialize_symtabs,gdbpy_initialize_symbols) (gdbpy_initialize_blocks ): Declare. * python/py-frame.c (frapy_block, frapy_function, frapy_find_sal) (frapy_select): Add methods. (frapy_read_var): Add symbol branch. * Makefile.in (SUBDIR_PYTHON_OBS): Add py-symbol, py-symtab, py-block. (SUBDIR_PYTHON_SRCS): Likewise. (py-symbol.o): New rule. (py-symtab.o): Likewise. (py-block.o): Likewise. * python/py-symbol.c: New file. * python/py-symtab.c: Likewise. * python/py-block.c: Likewise. 2010-02-24 Phil Muldoon <pmuldoon@redhat.com> * Makefile.in: Add py-block and py-symbol. * gdb.python/py-symbol.exp: New File. * gdb.python/py-symtab.exp: New File. * gdb.python/py-block.exp: New File. * gdb.python/py-symbol.c: New File. * gdb.python/py-block.c: New File. 2010-02-24 Phil Muldoon <pmuldoon@redhat.com> * gdb.texinfo (Frames In Python): Add block, find_sal, function and select method descriptions. (Python API): Add Blocks In Python, Symbols in Python and Symbol Tables in Python to menu. (Blocks In Python): New node. (Symbols In Python): New node. (Symbol Tables in Python): New node.
2010-02-24 22:18:28 +01:00
* Python scripting
** GDB now provides a new directory location, called the python directory,
where Python scripts written for GDB can be installed. The location
of that directory is <data-directory>/python, where <data-directory>
is the GDB data directory. For more details, see section `Scripting
GDB using Python' in the manual.
** The GDB Python API now has access to breakpoints, symbols, symbol
2010-06-28 Phil Muldoon <pmuldoon@redhat.com> Tom Tromey <tromey@redhat.com> Thiago Jung Bauermann <bauerman@br.ibm.com> * value.c (pack_unsigned_long): New function. (value_from_ulongest): New function. * value.h (value_from_ulongest): Declare. * python/python.c (_initialize_python): Call gdbpy_initialize_thread and gdbpy_initialize_inferior. * python/python-internal.h: Define thread_object. (gdbpy_inferiors, gdbpy_selected_thread) (frame_info_to_frame_object, create_thread_object) (find_thread_object, find_inferior_object) (gdbpy_initialize_thread, gdbpy_initialize_inferiors) (gdbpy_is_value_object, get_addr_from_python): Declare. * python/py-value.c (builtin_type_upylong): Define. (convert_value_from_python): Add logic for ulongest. (gdbpy_is_value_object): New function. * python/py-utils.c (get_addr_from_python): New function. * python/py-frame.c (frame_info_to_frame_object): Return a PyObject. (gdbpy_selected_frame): Use PyObject over frame_info. * Makefile.in (SUBDIR_PYTHON_OBS): Add py-inferior and py-infthread. (SUBDIR_PYTHON_SRCS): Likewise. (py-inferior.o): New Rule. (py-infthread.o): New Rule. * python/py-inferior.c: New File. * python/py-infthread.c: New File. 2010-06-28 Phil Muldoon <pmuldoon@redhat.com> Tom Tromey <tromey@redhat.com> Thiago Jung Bauermann <bauerman@br.ibm.com> * gdb.texinfo (Inferiors In Python): New node. * gdb.texinfo (Threads In Python): New node. 2010-06-28 Phil Muldoon <pmuldoon@redhat.com> Tom Tromey <tromey@redhat.com> Thiago Jung Bauermann <bauerman@br.ibm.com> * gdb.python/py-inferior.c: New File. * gdb.python/py-infthread.c: New File. * gdb.python/py-inferior.exp: New File. * gdb.python/py-infthread.exp: New File.
2010-06-28 23:16:04 +02:00
tables, program spaces, inferiors, threads and frame's code blocks.
Additionally, GDB Parameters can now be created from the API, and
manipulated via set/show in the CLI.
gdb 2010-03-05 Corinna Vinschen <vinschen@redhat.com> Tom Tromey <tromey@redhat.com> * utils.c (host_char_to_target): Add 'gdbarch' argument. (parse_escape): Likewise. * python/py-utils.c (unicode_to_target_string): Update. (unicode_to_target_python_string): Update. (target_string_to_unicode): Update. * printcmd.c (printf_command): Update. * p-exp.y (yylex): Update. * objc-exp.y (yylex): Update. * mi/mi-parse.c: Include charset.h. (mi_parse_escape): New function. (mi_parse_argv): Use it. * jv-exp.y (yylex): Update. * i386-cygwin-tdep.c (i386_cygwin_auto_wide_charset): New function. (i386_cygwin_init_abi): Call set_gdbarch_auto_wide_charset. * gdbarch.sh (auto_charset, auto_wide_charset): New. * gdbarch.c: Rebuild. * gdbarch.h: Rebuild. * defs.h (parse_escape): Update. * cli/cli-setshow.c: Include arch-utils.h. (do_setshow_command): Update. * cli/cli-cmds.c (echo_command): Update. * charset.h (target_charset, target_wide_charset): Update. * charset.c: Include arch-utils.h. (target_charset_name): Default to "auto". (target_wide_charset_name): Likewise. (show_target_charset_name): Handle "auto". (show_target_wide_charset_name): Likewise. (be_le_arch): New global. (set_be_le_names): Add 'gdbarch' argument. (validate): Likewise. Don't call set_be_le_names. (set_charset_sfunc, set_host_charset_sfunc) (set_target_charset_sfunc, set_target_wide_charset_sfunc): Update. (target_charset): Add 'gdbarch' argument. (target_wide_charset): Likewise. Remove 'byte_order' argument. (auto_target_charset_name): New global. (default_auto_charset, default_auto_wide_charset): New functions. (_initialize_charset): Set auto_target_charset_name. Allow "auto" for target charsets. Copy result of nl_langinfo. Use GetACP if USE_WIN32API. * c-lang.c (charset_for_string_type): Add 'gdbarch' argument, remove 'byte_order' argument. Update. (classify_type): Likewise. (c_emit_char): Update. (c_printchar): Update. (c_printstr): Update. (c_get_string): Update. (evaluate_subexp_c): Update. * arch-utils.h (default_auto_charset, default_auto_wide_charset): Declare. * python/python.c (gdbpy_target_charset): New function. (gdbpy_target_wide_charset): Likewise. (GdbMethods): Update. * NEWS: Update. gdb/doc * gdb.texinfo (Basic Python): Document target_charset and target_wide_charset. gdb/testsuite * gdb.python/py-prettyprint.py (pp_nullstr.to_string): Use gdb.target_charset. (pp_ns.to_string): Likewise.
2010-03-05 21:18:19 +01:00
** New functions gdb.target_charset, gdb.target_wide_charset,
gdb.progspaces, gdb.current_progspace, and gdb.string_to_argv.
** New exception gdb.GdbError.
** Pretty-printers are now also looked up in the current program space.
2010-02-24 Phil Muldoon <pmuldoon@redhat.com> Tom Tromey <tromey@redhat.com> Thiago Jung Bauermann <bauerman@br.ibm.com> * python/python.c (_initialize_python): Call gdbpy_initialize_symtabs, gdbpy_initialize_symbols and gdbpy_initialize_blocks. * python/python-internal.h: Declare struct symbol, block and symtab_and_line. Declare block_object_type and symbol_object_type (gdbpy_lookup_symbol gdbpy_block_for_pc) (symtab_and_line_to_sal_object, symtab_to_symtab_object) (symbol_to_symbol_object, block_to_block_object) (gdbpy_initialize_symtabs,gdbpy_initialize_symbols) (gdbpy_initialize_blocks ): Declare. * python/py-frame.c (frapy_block, frapy_function, frapy_find_sal) (frapy_select): Add methods. (frapy_read_var): Add symbol branch. * Makefile.in (SUBDIR_PYTHON_OBS): Add py-symbol, py-symtab, py-block. (SUBDIR_PYTHON_SRCS): Likewise. (py-symbol.o): New rule. (py-symtab.o): Likewise. (py-block.o): Likewise. * python/py-symbol.c: New file. * python/py-symtab.c: Likewise. * python/py-block.c: Likewise. 2010-02-24 Phil Muldoon <pmuldoon@redhat.com> * Makefile.in: Add py-block and py-symbol. * gdb.python/py-symbol.exp: New File. * gdb.python/py-symtab.exp: New File. * gdb.python/py-block.exp: New File. * gdb.python/py-symbol.c: New File. * gdb.python/py-block.c: New File. 2010-02-24 Phil Muldoon <pmuldoon@redhat.com> * gdb.texinfo (Frames In Python): Add block, find_sal, function and select method descriptions. (Python API): Add Blocks In Python, Symbols in Python and Symbol Tables in Python to menu. (Blocks In Python): New node. (Symbols In Python): New node. (Symbol Tables in Python): New node.
2010-02-24 22:18:28 +01:00
** Pretty-printers can now be individually enabled and disabled.
** GDB now looks for names of Python scripts to auto-load in a
special section named `.debug_gdb_scripts', in addition to looking
for a OBJFILE-gdb.py script when OBJFILE is read by the debugger.
Unify actions and commands * defs.h (read_command_lines, read_command_lines_1): New parameters validator and closure. * tracepoint.h (struct action_line): Remove. * breakpoint.h (struct breakpoint): Remove the 'actions' field. * defs.h (enum command_control_type): New value while_stepping_control. (struct command_line): Add comments. * breakpoint.c (breakoint_is_tracepoint): New. (breakpoint_set_commands): For tracepoints, verify the commands are permissible. (check_tracepoint_commands): New. (commands_command): Require that each new line is validated using check_tracepoint_command, if we set commands for a tracepoint. (create_tracepoint_from_upload): Likewise. (print_one_breakpoint_location): Remove the code to print actions specifically. (tracepoint_save_command): Relay to print_command_lines. * cli/cli-script.c (process_next_line): New parameters validator and closure. Handle 'while-stepping'. Call validator if not null. (read_command_lines, read_command_lines1): Likewise. (recurse_read_control_structure): New parameters validator and closure. Handle while_stepping_control. (print_command_lines): Handle while-stepping. (get_command_line, define_command, document_command): Adjust. * remote.c (remote_download_tracepoint): Adjust. * tracepoint.c (make_cleanup_free_actions, read_actions) (free_actions, do_free_actions_cleanup): Remove. (trace_actions_command): Use read_command_lines. (validate_actionline): Use error in one place. (encode_actions_1): New, extracted from... (encode_actions): ...this. Also use cleanups for exception safety. (trace_dump_command): Adjust. * mi/mi-cmd-break (mi_cmd_break_commands): Validate commands if it's tracepoint.
2010-03-23 22:32:28 +01:00
* Tracepoint actions were unified with breakpoint commands. In particular,
there are no longer differences in "info break" output for breakpoints and
tracepoints and the "commands" command can be used for both tracepoints and
regular breakpoints.
* New targets
ARM Symbian arm*-*-symbianelf*
* D language support.
GDB now supports debugging programs written in the D programming
language.
* GDB now supports the extended ptrace interface for PowerPC which is
available since Linux kernel version 2.6.34. This automatically enables
any hardware breakpoints and additional hardware watchpoints available in
the processor. The old ptrace interface exposes just one hardware
watchpoint and no hardware breakpoints.
* GDB is now able to use the Data Value Compare (DVC) register available on
embedded PowerPC processors to implement in hardware simple watchpoint
conditions of the form:
watch ADDRESS|VARIABLE if ADDRESS|VARIABLE == CONSTANT EXPRESSION
This works in native GDB running on Linux kernels with the extended ptrace
interface mentioned above.
*** Changes in GDB 7.1
2010-02-17 21:08:24 +01:00
* C++ Improvements
** Namespace Support
GDB now supports importing of namespaces in C++. This enables the
user to inspect variables from imported namespaces. Support for
namepace aliasing has also been added. So, if a namespace is
aliased in the current scope (e.g. namepace C=A; ) the user can
print variables using the alias (e.g. (gdb) print C::x).
2010-02-17 21:08:24 +01:00
** Bug Fixes
All known bugs relating to the printing of virtual base class were
fixed. It is now possible to call overloaded static methods using a
qualified name.
** Cast Operators
The C++ cast operators static_cast<>, dynamic_cast<>, const_cast<>,
and reinterpret_cast<> are now handled by the C++ expression parser.
* New targets
Xilinx MicroBlaze microblaze-*-*
2009-12-08 01:17:45 +01:00
Renesas RX rx-*-elf
* New Simulators
Xilinx MicroBlaze microblaze
2009-12-08 01:17:45 +01:00
Renesas RX rx
2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> Add base multi-executable/process support to GDB. gdb/ * Makefile.in (SFILES): Add progspace.c. (COMMON_OBS): Add progspace.o. * progspace.h: New. * progspace.c: New. * breakpoint.h (struct bp_target_info) <placed_address_space>: New field. (struct bp_location) <pspace>: New field. (struct breakpoint) <pspace>: New field. (bpstat_stop_status, breakpoint_here_p) (moribund_breakpoint_here_p, breakpoint_inserted_here_p) (regular_breakpoint_inserted_here_p) (software_breakpoint_inserted_here_p, breakpoint_thread_match) (set_default_breakpoint): Adjust prototypes. (remove_breakpoints_pid, breakpoint_program_space_exit): Declare. (insert_single_step_breakpoint, deprecated_insert_raw_breakpoint): Adjust prototypes. * breakpoint.c (executing_startup): Delete. (default_breakpoint_sspace): New. (breakpoint_restore_shadows): Skip if the address space doesn't match. (update_watchpoint): Record the frame's program space in the breakpoint location. (insert_bp_location): Record the address space in target_info. Adjust to pass the symbol space to solib_name_from_address. (breakpoint_program_space_exit): New. (insert_breakpoint_locations): Switch the symbol space and thread when inserting breakpoints. Don't insert breakpoints in a vfork parent waiting for vfork done if we're not attached to the vfork child. (remove_breakpoints_pid): New. (reattach_breakpoints): Switch to a thread of PID. Ignore breakpoints of other symbol spaces. (create_internal_breakpoint): Store the symbol space in the sal. (create_longjmp_master_breakpoint): Iterate over all symbol spaces. (update_breakpoints_after_exec): Ignore breakpoints for other symbol spaces. (remove_breakpoint): Rename to ... (remove_breakpoint_1): ... this. Pass the breakpoints symbol space to solib_name_from_address. (remove_breakpoint): New. (mark_breakpoints_out): Ignore breakpoints from other symbol spaces. (breakpoint_init_inferior): Ditto. (breakpoint_here_p): Add an address space argument and adjust to use breakpoint_address_match. (moribund_breakpoint_here_p): Ditto. (regular_breakpoint_inserted_here_p): Ditto. (breakpoint_inserted_here_p): Ditto. (software_breakpoint_inserted_here_p): Ditto. (breakpoint_thread_match): Ditto. (bpstat_check_location): Ditto. (bpstat_stop_status): Ditto. (print_breakpoint_location): If there's a location to print, switch the current symbol space. (print_one_breakpoint_location): Add `allflag' argument. (print_one_breakpoint): Ditto. Adjust. (do_captured_breakpoint_query): Adjust. (breakpoint_1): Adjust. (breakpoint_has_pc): Also match the symbol space. (describe_other_breakpoints): Add a symbol space argument and adjust. (set_default_breakpoint): Add a symbol space argument. Set default_breakpoint_sspace. (breakpoint_address_match): New. (check_duplicates_for): Add an address space argument, and adjust. (set_raw_breakpoint): Record the symbol space in the location and in the breakpoint. (set_longjmp_breakpoint): Skip longjmp master breakpoints from other symbol spaces. (remove_thread_event_breakpoints, remove_solib_event_breakpoints) (disable_breakpoints_in_shlibs): Skip breakpoints from other symbol spaces. (disable_breakpoints_in_unloaded_shlib): Match symbol spaces. (create_catchpoint): Set the symbol space in the sal. (disable_breakpoints_before_startup): Skip breakpoints from other symbol spaces. Set executing_startup in the current symbol space. (enable_breakpoints_after_startup): Clear executing_startup in the current symbol space. Skip breakpoints from other symbol spaces. (clone_momentary_breakpoint): Also copy the symbol space. (add_location_to_breakpoint): Set the location's symbol space. (bp_loc_is_permanent): Switch thread and symbol space. (create_breakpoint): Adjust. (expand_line_sal_maybe): Expand comment to mention symbol spaces. Switch thread and symbol space when reading memory. (parse_breakpoint_sals): Set the symbol space in the sal. (break_command_really): Ditto. (skip_prologue_sal): Switch and space. (resolve_sal_pc): Ditto. (watch_command_1): Record the symbol space in the sal. (create_ada_exception_breakpoint): Adjust. (clear_command): Adjust. Match symbol spaces. (update_global_location_list): Use breakpoint_address_match. (breakpoint_re_set_one): Switch thread and space. (breakpoint_re_set): Save symbol space. (breakpoint_re_set_thread): Also reset the symbol space. (deprecated_insert_raw_breakpoint): Add an address space argument. Adjust. (insert_single_step_breakpoint): Ditto. (single_step_breakpoint_inserted_here_p): Ditto. (clear_syscall_counts): New. (_initialize_breakpoint): Install it as inferior_exit observer. * exec.h: Include "progspace.h". (exec_bfd, exec_bfd_mtime): New defines. (exec_close): Declare. * exec.c: Include "gdbthread.h" and "progspace.h". (exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete. (using_exec_ops): New. (exec_close_1): Rename to exec_close, and make public. (exec_close): Rename to exec_close_1, and adjust all callers. Add description. Remove target sections and close executables from all program spaces. (exec_file_attach): Add comment. (add_target_sections): Check on `using_exec_ops' to check if the target should be pushed. (remove_target_sections): Only unpush the target if there are no more target sections in any symbol space. * gdbcore.h: Include "exec.h". (exec_bfd, exec_bfd_mtime): Remove declarations. * frame.h (get_frame_program_space, get_frame_address_space) (frame_unwind_program_space): Declare. * frame.c (struct frame_info) <pspace, aspace>: New fields. (create_sentinel_frame): Add program space argument. Set the pspace and aspace fields of the frame object. (get_current_frame, create_new_frame): Adjust. (get_frame_program_space): New. (frame_unwind_program_space): New. (get_frame_address_space): New. * stack.c (print_frame_info): Adjust. (print_frame): Use the frame's program space. * gdbthread.h (any_live_thread_of_process): Declare. * thread.c (any_live_thread_of_process): New. (switch_to_thread): Switch the program space as well. (restore_selected_frame): Don't warn if trying to restore frame level 0. * inferior.h: Include "progspace.h". (detach_fork): Declare. (struct inferior) <removable, aspace, pspace> <vfork_parent, vfork_child, pending_detach> <waiting_for_vfork_done>: New fields. <terminal_info>: Remove field. <data, num_data>: New fields. (register_inferior_data, register_inferior_data_with_cleanup) (clear_inferior_data, set_inferior_data, inferior_data): Declare. (exit_inferior, exit_inferior_silent, exit_inferior_num_silent) (inferior_appeared): Declare. (find_inferior_pid): Typo. (find_inferior_id, find_inferior_for_program_space): Declare. (set_current_inferior, save_current_inferior, prune_inferiors) (number_of_inferiors): Declare. (inferior_list): Declare. * inferior.c: Include "gdbcore.h" and "symfile.h". (inferior_list): Make public. (delete_inferior_1): Always delete thread silently. (find_inferior_id): Make public. (current_inferior_): New. (current_inferior): Use it. (set_current_inferior): New. (restore_inferior): New. (save_current_inferior): New. (free_inferior): Free the per-inferior data. (add_inferior_silent): Allocate per-inferior data. Call inferior_appeared. (delete_threads_of_inferior): New. (delete_inferior_1): Adjust interface to take an inferior pointer. (delete_inferior): Adjust. (delete_inferior_silent): Adjust. (exit_inferior_1): New. (exit_inferior): New. (exit_inferior_silent): New. (exit_inferior_num_silent): New. (detach_inferior): Adjust. (inferior_appeared): New. (discard_all_inferiors): Adjust. (find_inferior_id): Make public. Assert pid is not zero. (find_inferior_for_program_space): New. (have_inferiors): Check if we have any inferior with pid not zero. (have_live_inferiors): Go over all pushed targets looking for process_stratum. (prune_inferiors): New. (number_of_inferiors): New. (print_inferior): Add executable column. Print vfork parent/child relationships. (inferior_command): Adjust to cope with not running inferiors. (remove_inferior_command): New. (add_inferior_command): New. (clone_inferior_command): New. (struct inferior_data): New. (struct inferior_data_registration): New. (struct inferior_data_registry): New. (inferior_data_registry): New. (register_inferior_data_with_cleanup): New. (register_inferior_data): New. (inferior_alloc_data): New. (inferior_free_data): New. (clear_inferior_data): New. (set_inferior_data): New. (inferior_data): New. (initialize_inferiors): New. (_initialize_inferiors): Register "add-inferior", "remove-inferior" and "clone-inferior" commands. * objfiles.h: Include "progspace.h". (struct objfile) <pspace>: New field. (symfile_objfile, object_files): Don't declare. (ALL_PSPACE_OBJFILES): New. (ALL_PSPACE_OBJFILES_SAFE): New. (ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust. (ALL_PSPACE_SYMTABS): New. (ALL_PRIMARY_SYMTABS): Adjust. (ALL_PSPACE_PRIMARY_SYMTABS): New. (ALL_PSYMTABS): Adjust. (ALL_PSPACE_PSYMTABS): New. * objfiles.c (object_files, symfile_objfile): Delete. (struct objfile_sspace_info): New. (objfiles_pspace_data): New. (objfiles_pspace_data_cleanup): New. (get_objfile_pspace_data): New. (objfiles_changed_p): Delete. (allocate_objfile): Set the objfile's program space. Adjust to reference objfiles_changed_p in pspace data. (free_objfile): Adjust to reference objfiles_changed_p in pspace data. (objfile_relocate): Ditto. (update_section_map): Add pspace argument. Adjust to iterate over objfiles in the passed in pspace. (find_pc_section): Delete sections and num_sections statics. Adjust to refer to program space's objfiles_changed_p. Adjust to refer to sections and num_sections store in the objfile's pspace data. (objfiles_changed): Adjust to reference objfiles_changed_p in pspace data. (_initialize_objfiles): New. * linespec.c (decode_all_digits, decode_dollar): Set the sal's program space. * source.c (current_source_pspace): New. (get_current_source_symtab_and_line): Set the sal's program space. (set_current_source_symtab_and_line): Set current_source_pspace. (select_source_symtab): Ditto. Use ALL_OBJFILES. (forget_cached_source_info): Iterate over all program spaces. * symfile.c (clear_symtab_users): Adjust. * symmisc.c (print_symbol_bcache_statistics): Iterate over all program spaces. (print_objfile_statistics): Ditto. (maintenance_print_msymbols): Ditto. (maintenance_print_objfiles): Ditto. (maintenance_info_symtabs): Ditto. (maintenance_info_psymtabs): Ditto. * symtab.h (SYMTAB_PSPACE): New. (struct symtab_and_line) <pspace>: New field. * symtab.c (init_sal): Clear the sal's program space. (find_pc_sect_symtab): Set the sal's program space. Switch thread and space. (append_expanded_sal): Add program space argument. Iterate over all program spaces. (expand_line_sal): Iterate over all program spaces. Switch program space. * target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New. (struct target_ops) <to_thread_address_space>: New field. (target_thread_address_space): Define. * target.c (target_detach): Only remove breakpoints from the inferior we're detaching. (target_thread_address_space): New. * defs.h (initialize_progspace): Declare. * top.c (gdb_init): Call it. * solist.h (struct so_list) <sspace>: New field. * solib.h (struct program_space): Forward declare. (solib_name_from_address): Adjust prototype. * solib.c (so_list_head): Replace with a macro referencing the program space. (update_solib_list): Set the so's program space. (solib_name_from_address): Add a program space argument and adjust. * solib-svr4.c (struct svr4_info) <pid>: Delete field. <interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low> <interp_plt_sect_high>: New fields. (svr4_info_p, svr4_info): Delete. (solib_svr4_sspace_data): New. (get_svr4_info): Rewrite. (svr4_sspace_data_cleanup): New. (open_symbol_file_object): Adjust. (svr4_default_sos): Adjust. (svr4_fetch_objfile_link_map): Adjust. (interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low) (interp_plt_sect_high): Delete. (svr4_in_dynsym_resolve_code): Adjust. (enable_break): Adjust. (svr4_clear_solib): Revert bit that removed the svr4_info here, and reinstate clearing debug_base, debug_loader_offset_p, debug_loader_offset and debug_loader_name. (_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't install an inferior_exit observer anymore. * printcmd.c (struct display) <pspace>: New field. (display_command): Set the display's sspace. (do_one_display): Match the display's sspace. (display_uses_solib_p): Ditto. * linux-fork.c (detach_fork): Moved to infrun.c. (_initialize_linux_fork): Moved "detach-on-fork" command to infrun.c. * infrun.c (detach_fork): Moved from linux-fork.c. (proceed_after_vfork_done): New. (handle_vfork_child_exec_or_exit): New. (follow_exec_mode_replace, follow_exec_mode_keep) (follow_exec_mode_names, follow_exec_mode_string) (show_follow_exec_mode_string): New. (follow_exec): New. Reinstate the mark_breakpoints_out call. Remove shared libraries before attaching new executable. If user wants to keep the inferior, keep it. (displaced_step_fixup): Adjust to pass an address space to the breakpoints module. (resume): Ditto. (clear_proceed_status): In all-stop mode, always clear the proceed status of all threads. (prepare_to_proceed): Adjust to pass an address space to the breakpoints module. (proceed): Ditto. (adjust_pc_after_break): Ditto. (handle_inferior_event): When handling a process exit, switch the program space to the inferior's that had exited. Call handle_vfork_child_exec_or_exit. Adjust to pass an address space to the breakpoints module. In non-stop mode, when following a fork and detach-fork is off, also resume the other branch. Handle TARGET_WAITKIND_VFORK_DONE. Set the program space in sals. (normal_stop): Prune inferiors. (_initialize_infrun): Install the new "follow-exec-mode" command. "detach-on-fork" moved here. * regcache.h (get_regcache_aspace): Declare. * regcache.c (struct regcache) <aspace>: New field. (regcache_xmalloc): Clear the aspace. (get_regcache_aspace): New. (regcache_cpy): Copy the aspace field. (regcache_cpy_no_passthrough): Ditto. (get_thread_regcache): Fetch the thread's address space from the target, and store it in the regcache. * infcall.c (call_function_by_hand): Set the sal's pspace. * arch-utils.c (default_has_shared_address_space): New. * arch-utils.h (default_has_shared_address_space): Declare. * gdbarch.sh (has_shared_address_space): New. * gdbarch.h, gdbarch.c: Regenerate. * linux-tdep.c: Include auxv.h, target.h, elf/common.h. (linux_has_shared_address_space): New. (_initialize_linux_tdep): Declare. * arm-tdep.c (arm_software_single_step): Pass the frame's address space to insert_single_step_breakpoint. * arm-linux-tdep.c (arm_linux_software_single_step): Pass the frame's pspace to breakpoint functions. * cris-tdep.c (crisv32_single_step_through_delay): Ditto. (cris_software_single_step): Ditto. * mips-tdep.c (deal_with_atomic_sequence): Add frame argument. Pass the frame's pspace to breakpoint functions. (mips_software_single_step): Adjust. (mips_single_step_through_delay): Adjust. * rs6000-aix-tdep.c (rs6000_software_single_step): Adjust. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust. * solib-irix.c (enable_break): Adjust to pass the current frame's address space to breakpoint functions. * sparc-tdep.c (sparc_software_single_step): Ditto. * spu-tdep.c (spu_software_single_step): Ditto. * alpha-tdep.c (alpha_software_single_step): Ditto. * record.c (record_wait): Adjust to pass an address space to the breakpoints module. * fork-child.c (fork_inferior): Set the new inferior's program and address spaces. * inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program and address spaces. (inf_ptrace_attach): Set the inferior's program and address spaces. * linux-nat.c: Include "solib.h". (linux_child_follow_fork): Manage parent and child's program and address spaces. Clone the parent's program space if necessary. Don't wait for the vfork to be done here. Refuse to resume if following the vfork parent while leaving the child stopped. (resume_callback): Don't resume a vfork parent. (linux_nat_resume): Also check for pending events in the lp->waitstatus field. (linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE events to the core. (stop_wait_callback): Don't wait for SIGSTOP on vfork parents. (cancel_breakpoint): Adjust. * linux-thread-db.c (thread_db_wait): Don't remove thread event breakpoints here. (thread_db_mourn_inferior): Don't mark breakpoints out here. Remove thread event breakpoints after mourning. * corelow.c: Include progspace.h. (core_open): Set the inferior's program and address spaces. * remote.c (remote_add_inferior): Set the new inferior's program and address spaces. (remote_start_remote): Update address spaces. (extended_remote_create_inferior_1): Don't init the thread list if we already debugging other inferiors. * darwin-nat.c (darwin_attach): Set the new inferior's program and address spaces. * gnu-nat.c (gnu_attach): Ditto. * go32-nat.c (go32_create_inferior): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto. * monitor.c (monitor_open): Ditto. * nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto. * procfs.c (do_attach): Ditto. * windows-nat.c (do_initial_windows_stuff): Ditto. * inflow.c (inferior_process_group) (terminal_init_inferior_with_pgrp, terminal_inferior, (terminal_ours_1, inflow_inferior_exit, copy_terminal_info) (child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust to use per-inferior data instead of inferior->terminal_info. (inflow_inferior_data): New. (inflow_new_inferior): Delete. (inflow_inferior_data_cleanup): New. (get_inflow_inferior_data): New. * mi/mi-interp.c (mi_new_inferior): Rename to... (mi_inferior_appeared): ... this. (mi_interpreter_init): Adjust. * tui/tui-disasm.c: Include "progspace.h". (tui_set_disassem_content): Pass an address space to breakpoint_here_p. * NEWS: Mention multi-program debugging support. Mention new commands "add-inferior", "clone-inferior", "remove-inferior", "maint info program-spaces", and new option "set follow-exec-mode". 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * observer.texi (new_inferior): Rename to... (inferior_appeared): ... this. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/testsuite/ * gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork". * gdb.base/foll-exec.exp: Adjust to expect a process id before "Executing new program". * gdb.base/foll-fork.exp: Adjust to spell out "follow-fork". * gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being left listed after having been killed. * gdb.base/attach.exp: Adjust to spell out "symbol-file". * gdb.base/maint.exp: Adjust test. * Makefile.in (ALL_SUBDIRS): Add gdb.multi. * gdb.multi/Makefile.in: New. * gdb.multi/base.exp: New. * gdb.multi/goodbye.c: New. * gdb.multi/hangout.c: New. * gdb.multi/hello.c: New. * gdb.multi/bkpt-multi-exec.c: New. * gdb.multi/bkpt-multi-exec.exp: New. * gdb.multi/crashme.c: New. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * gdb.texinfo (Inferiors): Rename node to ... (Inferiors and Programs): ... this. Mention running multiple programs in the same debug session. <info inferiors>: Mention the new 'Executable' column if "info inferiors". Update examples. Document the "add-inferior", "clone-inferior", "remove-inferior" and "maint info program-spaces" commands. (Process): Rename node to... (Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
* Multi-program debugging.
GDB now has support for multi-program (a.k.a. multi-executable or
multi-exec) debugging. This allows for debugging multiple inferiors
simultaneously each running a different program under the same GDB
session. See "Debugging Multiple Inferiors and Programs" in the
manual for more information. This implied some user visible changes
in the multi-inferior support. For example, "info inferiors" now
lists inferiors that are not running yet or that have exited
already. See also "New commands" and "New options" below.
2010-01-06 21:31:28 +01:00
* New tracing features
GDB's tracepoint facility now includes several new features:
** Trace state variables
GDB tracepoints now include support for trace state variables, which
are variables managed by the target agent during a tracing
experiment. They are useful for tracepoints that trigger each
other, so for instance one tracepoint can count hits in a variable,
and then a second tracepoint has a condition that is true when the
count reaches a particular value. Trace state variables share the
$-syntax of GDB convenience variables, and can appear in both
tracepoint actions and condition expressions. Use the "tvariable"
command to create, and "info tvariables" to view; see "Trace State
Variables" in the manual for more detail.
Add fast tracepoints. * arch-utils.h (default_fast_tracepoint_valid_at): Declare. * arch-utils.c (default_fast_tracepoint_valid_at): New function. * breakpoint.h (enum bptype): Add bp_fast_tracepoint. * breakpoint.c (tracepoint_type): New function. (ALL_TRACEPOINTS): Use it. (should_be_inserted): Ditto. (bpstat_check_location): Ditto. (print_one_breakpoint_location): Ditto. (user_settable_breakpoint): Ditto. (set_breakpoint_location_function): Ditto. (disable_breakpoints_in_shlibs): Ditto. (delete_trace_command): Ditto. (print_it_typical): Add bp_fast_tracepoint case. (bpstat_what): Ditto. (print_one_breakpoint_location): Ditto. (allocate_bp_location): Ditto. (mention): Ditto. (breakpoint_re_set_one): Ditto. (disable_command): Ditto. (enable_command): Ditto. (check_fast_tracepoint_sals): New function. (break_command_really): Call it. (ftrace_command): New function. (_initialize_breakpoint): Add ftrace command. * gdbarch.sh (fast_tracepoint_valid_at): New. * gdbarch.h, gdbarch.c: Regenerate. * i386-tdep.c (i386_fast_tracepoint_valid_at): New function. (i386_gdbarch_init): Use it. * remote.c (struct remote_state): New field fast_tracepoints. (PACKET_FastTracepoints): New packet config type. (remote_fast_tracepoint_feature): New function. (remote_protocol_features): Add FastTracepoints. (remote_supports_fast_tracepoints): New function. (_initialize_remote): Add FastTracepoints. * tracepoint.c (download_tracepoint): Add fast tracepoint option. * NEWS: Mention fast tracepoints. * gdb.texinfo (Create and Delete Tracepoints): Describe fast tracepoints. (Tracepoint Packets): Describe remote protocol for fast tracepoints. * gdb.trace/tracecmd.exp: Test ftrace.
2010-01-06 05:20:27 +01:00
2010-01-06 21:31:28 +01:00
** Fast tracepoints
Add fast tracepoints. * arch-utils.h (default_fast_tracepoint_valid_at): Declare. * arch-utils.c (default_fast_tracepoint_valid_at): New function. * breakpoint.h (enum bptype): Add bp_fast_tracepoint. * breakpoint.c (tracepoint_type): New function. (ALL_TRACEPOINTS): Use it. (should_be_inserted): Ditto. (bpstat_check_location): Ditto. (print_one_breakpoint_location): Ditto. (user_settable_breakpoint): Ditto. (set_breakpoint_location_function): Ditto. (disable_breakpoints_in_shlibs): Ditto. (delete_trace_command): Ditto. (print_it_typical): Add bp_fast_tracepoint case. (bpstat_what): Ditto. (print_one_breakpoint_location): Ditto. (allocate_bp_location): Ditto. (mention): Ditto. (breakpoint_re_set_one): Ditto. (disable_command): Ditto. (enable_command): Ditto. (check_fast_tracepoint_sals): New function. (break_command_really): Call it. (ftrace_command): New function. (_initialize_breakpoint): Add ftrace command. * gdbarch.sh (fast_tracepoint_valid_at): New. * gdbarch.h, gdbarch.c: Regenerate. * i386-tdep.c (i386_fast_tracepoint_valid_at): New function. (i386_gdbarch_init): Use it. * remote.c (struct remote_state): New field fast_tracepoints. (PACKET_FastTracepoints): New packet config type. (remote_fast_tracepoint_feature): New function. (remote_protocol_features): Add FastTracepoints. (remote_supports_fast_tracepoints): New function. (_initialize_remote): Add FastTracepoints. * tracepoint.c (download_tracepoint): Add fast tracepoint option. * NEWS: Mention fast tracepoints. * gdb.texinfo (Create and Delete Tracepoints): Describe fast tracepoints. (Tracepoint Packets): Describe remote protocol for fast tracepoints. * gdb.trace/tracecmd.exp: Test ftrace.
2010-01-06 05:20:27 +01:00
GDB now includes an option for defining fast tracepoints, which
targets may implement more efficiently, such as by installing a jump
into the target agent rather than a trap instruction. The resulting
speedup can be by two orders of magnitude or more, although the
tradeoff is that some program locations on some target architectures
might not allow fast tracepoint installation, for instance if the
instruction to be replaced is shorter than the jump. To request a
fast tracepoint, use the "ftrace" command, with syntax identical to
the regular trace command.
2010-01-06 21:31:28 +01:00
** Disconnected tracing
It is now possible to detach GDB from the target while it is running
a trace experiment, then reconnect later to see how the experiment
is going. In addition, a new variable disconnected-tracing lets you
tell the target agent whether to continue running a trace if the
connection is lost unexpectedly.
Add trace file support. * tracepoint.h (enum trace_stop_reason): New enum. (struct trace_status): New struct. (parse_trace_status): Declare. (struct uploaded_tp): Move here from remote.c, add fields for actions. (struct uploaded_tsv): New struct. * tracepoint.c (tfile_ops): New target vector. (trace_fd): New global. (tfile_open): New function. (tfile_close): New function. (tfile_files_info): New function. (tfile_get_trace_status): New function. (tfile_get_traceframe_address): New function. (tfile_trace_find): New function. (tfile_fetch_registers): New function. (tfile_xfer_partial): New function. (tfile_get_trace_state_variable_value): New function. (init_tfile_ops): New function. (_initialize_tracepoint): Call it, add tfile target. (trace_status): New global. (current_trace_status): New function. (trace_running_p): Remove, change all users to get from current_trace_status()->running. (get_trace_status): Remove. (trace_status_command): Call target_get_trace_status directly, report more detail including tracing stop reasons. (trace_find_command): Always allow tfind on a file. (trace_find_pc_command): Ditto. (trace_find_tracepoint_command): Ditto. (trace_find_line_command): Ditto. (trace_find_range_command): Ditto. (trace_find_outside_command): Ditto. (trace_frames_offset, cur_offset): Declare as off_t. (trace_regblock_size): Rename from reg_size, update users. (parse_trace_status): New function. (tfile_interp_line): New function. (disconnect_or_stop_tracing): Ensure current trace status before asking what to do. (stop_reason_names): New global. (trace_save_command): New command. (get_uploaded_tp): Move here from remote.c. (find_matching_tracepoint): Ditto. (merge_uploaded_tracepoints): New function. (parse_trace_status): Use stop_reason_names. (_initialize_tracepoint): Define tsave command. * target.h (target_ops): New fields to_save_trace_data, to_upload_tracepoints, to_upload_trace_state_variables, to_get_raw_trace_data, change to_get_trace_status to take a pointer to a status struct. (target_save_trace_data): New macro. (target_upload_tracepoints): New macro. (target_upload_trace_state_variables): New macro. (target_get_raw_trace_data): New macro. * target.c (update_current_target): Add new methods, change signature of to_get_trace_status. * remote.c (hex2bin): Make globally visible. (bin2hex): Ditto. (remote_download_trace_state_variable): Download name also. (remote_get_trace_status): Update parameter, use parse_trace_status. (remote_save_trace_data): New function. (remote_upload_tracepoints): New function. (remote_upload_trace_state_variables): New function. (remote_get_raw_trace_data): New function. (remote_start_remote): Use them. (_initialize_remote_ops): Add operations. * ax-gdb.c: Include breakpoint.h. * breakpoint.c (create_tracepoint_from_upload): Use break_command_really, return tracepoint, warn about unimplemented parts. * NEWS: Mention trace file addition. * gdb.texinfo (Trace Files): New section. (Tracepoint Packets): Document QTSave and qTBuffer. (Trace File Format): New appendix. * generic/gdbtk-bp.c (gdb_trace_status): Use current_trace_status. * gdb.trace/tfile.c: New file. * gdb.trace/tfile.exp: New file.
2010-01-15 23:37:20 +01:00
** Trace files
GDB now has the ability to save the trace buffer into a file, and
then use that file as a target, similarly to you can do with
corefiles. You can select trace frames, print data that was
collected in them, and use tstatus to display the state of the
tracing run at the moment that it was saved. To create a trace
file, use "tsave <filename>", and to use it, do "target tfile
<name>".
** Circular trace buffer
You can ask the target agent to handle the trace buffer as a
circular buffer, discarding the oldest trace frames to make room for
newer ones, by setting circular-trace-buffer to on. This feature may
not be available for all target agents.
* Changed commands
disassemble
The disassemble command, when invoked with two arguments, now requires
the arguments to be comma-separated.
info variables
The info variables command now displays variable definitions. Files
which only declare a variable are not shown.
source
The source command is now capable of sourcing Python scripts.
This feature is dependent on the debugger being build with Python
support.
Related to this enhancement is also the introduction of a new command
"set script-extension" (see below).
2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> Add base multi-executable/process support to GDB. gdb/ * Makefile.in (SFILES): Add progspace.c. (COMMON_OBS): Add progspace.o. * progspace.h: New. * progspace.c: New. * breakpoint.h (struct bp_target_info) <placed_address_space>: New field. (struct bp_location) <pspace>: New field. (struct breakpoint) <pspace>: New field. (bpstat_stop_status, breakpoint_here_p) (moribund_breakpoint_here_p, breakpoint_inserted_here_p) (regular_breakpoint_inserted_here_p) (software_breakpoint_inserted_here_p, breakpoint_thread_match) (set_default_breakpoint): Adjust prototypes. (remove_breakpoints_pid, breakpoint_program_space_exit): Declare. (insert_single_step_breakpoint, deprecated_insert_raw_breakpoint): Adjust prototypes. * breakpoint.c (executing_startup): Delete. (default_breakpoint_sspace): New. (breakpoint_restore_shadows): Skip if the address space doesn't match. (update_watchpoint): Record the frame's program space in the breakpoint location. (insert_bp_location): Record the address space in target_info. Adjust to pass the symbol space to solib_name_from_address. (breakpoint_program_space_exit): New. (insert_breakpoint_locations): Switch the symbol space and thread when inserting breakpoints. Don't insert breakpoints in a vfork parent waiting for vfork done if we're not attached to the vfork child. (remove_breakpoints_pid): New. (reattach_breakpoints): Switch to a thread of PID. Ignore breakpoints of other symbol spaces. (create_internal_breakpoint): Store the symbol space in the sal. (create_longjmp_master_breakpoint): Iterate over all symbol spaces. (update_breakpoints_after_exec): Ignore breakpoints for other symbol spaces. (remove_breakpoint): Rename to ... (remove_breakpoint_1): ... this. Pass the breakpoints symbol space to solib_name_from_address. (remove_breakpoint): New. (mark_breakpoints_out): Ignore breakpoints from other symbol spaces. (breakpoint_init_inferior): Ditto. (breakpoint_here_p): Add an address space argument and adjust to use breakpoint_address_match. (moribund_breakpoint_here_p): Ditto. (regular_breakpoint_inserted_here_p): Ditto. (breakpoint_inserted_here_p): Ditto. (software_breakpoint_inserted_here_p): Ditto. (breakpoint_thread_match): Ditto. (bpstat_check_location): Ditto. (bpstat_stop_status): Ditto. (print_breakpoint_location): If there's a location to print, switch the current symbol space. (print_one_breakpoint_location): Add `allflag' argument. (print_one_breakpoint): Ditto. Adjust. (do_captured_breakpoint_query): Adjust. (breakpoint_1): Adjust. (breakpoint_has_pc): Also match the symbol space. (describe_other_breakpoints): Add a symbol space argument and adjust. (set_default_breakpoint): Add a symbol space argument. Set default_breakpoint_sspace. (breakpoint_address_match): New. (check_duplicates_for): Add an address space argument, and adjust. (set_raw_breakpoint): Record the symbol space in the location and in the breakpoint. (set_longjmp_breakpoint): Skip longjmp master breakpoints from other symbol spaces. (remove_thread_event_breakpoints, remove_solib_event_breakpoints) (disable_breakpoints_in_shlibs): Skip breakpoints from other symbol spaces. (disable_breakpoints_in_unloaded_shlib): Match symbol spaces. (create_catchpoint): Set the symbol space in the sal. (disable_breakpoints_before_startup): Skip breakpoints from other symbol spaces. Set executing_startup in the current symbol space. (enable_breakpoints_after_startup): Clear executing_startup in the current symbol space. Skip breakpoints from other symbol spaces. (clone_momentary_breakpoint): Also copy the symbol space. (add_location_to_breakpoint): Set the location's symbol space. (bp_loc_is_permanent): Switch thread and symbol space. (create_breakpoint): Adjust. (expand_line_sal_maybe): Expand comment to mention symbol spaces. Switch thread and symbol space when reading memory. (parse_breakpoint_sals): Set the symbol space in the sal. (break_command_really): Ditto. (skip_prologue_sal): Switch and space. (resolve_sal_pc): Ditto. (watch_command_1): Record the symbol space in the sal. (create_ada_exception_breakpoint): Adjust. (clear_command): Adjust. Match symbol spaces. (update_global_location_list): Use breakpoint_address_match. (breakpoint_re_set_one): Switch thread and space. (breakpoint_re_set): Save symbol space. (breakpoint_re_set_thread): Also reset the symbol space. (deprecated_insert_raw_breakpoint): Add an address space argument. Adjust. (insert_single_step_breakpoint): Ditto. (single_step_breakpoint_inserted_here_p): Ditto. (clear_syscall_counts): New. (_initialize_breakpoint): Install it as inferior_exit observer. * exec.h: Include "progspace.h". (exec_bfd, exec_bfd_mtime): New defines. (exec_close): Declare. * exec.c: Include "gdbthread.h" and "progspace.h". (exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete. (using_exec_ops): New. (exec_close_1): Rename to exec_close, and make public. (exec_close): Rename to exec_close_1, and adjust all callers. Add description. Remove target sections and close executables from all program spaces. (exec_file_attach): Add comment. (add_target_sections): Check on `using_exec_ops' to check if the target should be pushed. (remove_target_sections): Only unpush the target if there are no more target sections in any symbol space. * gdbcore.h: Include "exec.h". (exec_bfd, exec_bfd_mtime): Remove declarations. * frame.h (get_frame_program_space, get_frame_address_space) (frame_unwind_program_space): Declare. * frame.c (struct frame_info) <pspace, aspace>: New fields. (create_sentinel_frame): Add program space argument. Set the pspace and aspace fields of the frame object. (get_current_frame, create_new_frame): Adjust. (get_frame_program_space): New. (frame_unwind_program_space): New. (get_frame_address_space): New. * stack.c (print_frame_info): Adjust. (print_frame): Use the frame's program space. * gdbthread.h (any_live_thread_of_process): Declare. * thread.c (any_live_thread_of_process): New. (switch_to_thread): Switch the program space as well. (restore_selected_frame): Don't warn if trying to restore frame level 0. * inferior.h: Include "progspace.h". (detach_fork): Declare. (struct inferior) <removable, aspace, pspace> <vfork_parent, vfork_child, pending_detach> <waiting_for_vfork_done>: New fields. <terminal_info>: Remove field. <data, num_data>: New fields. (register_inferior_data, register_inferior_data_with_cleanup) (clear_inferior_data, set_inferior_data, inferior_data): Declare. (exit_inferior, exit_inferior_silent, exit_inferior_num_silent) (inferior_appeared): Declare. (find_inferior_pid): Typo. (find_inferior_id, find_inferior_for_program_space): Declare. (set_current_inferior, save_current_inferior, prune_inferiors) (number_of_inferiors): Declare. (inferior_list): Declare. * inferior.c: Include "gdbcore.h" and "symfile.h". (inferior_list): Make public. (delete_inferior_1): Always delete thread silently. (find_inferior_id): Make public. (current_inferior_): New. (current_inferior): Use it. (set_current_inferior): New. (restore_inferior): New. (save_current_inferior): New. (free_inferior): Free the per-inferior data. (add_inferior_silent): Allocate per-inferior data. Call inferior_appeared. (delete_threads_of_inferior): New. (delete_inferior_1): Adjust interface to take an inferior pointer. (delete_inferior): Adjust. (delete_inferior_silent): Adjust. (exit_inferior_1): New. (exit_inferior): New. (exit_inferior_silent): New. (exit_inferior_num_silent): New. (detach_inferior): Adjust. (inferior_appeared): New. (discard_all_inferiors): Adjust. (find_inferior_id): Make public. Assert pid is not zero. (find_inferior_for_program_space): New. (have_inferiors): Check if we have any inferior with pid not zero. (have_live_inferiors): Go over all pushed targets looking for process_stratum. (prune_inferiors): New. (number_of_inferiors): New. (print_inferior): Add executable column. Print vfork parent/child relationships. (inferior_command): Adjust to cope with not running inferiors. (remove_inferior_command): New. (add_inferior_command): New. (clone_inferior_command): New. (struct inferior_data): New. (struct inferior_data_registration): New. (struct inferior_data_registry): New. (inferior_data_registry): New. (register_inferior_data_with_cleanup): New. (register_inferior_data): New. (inferior_alloc_data): New. (inferior_free_data): New. (clear_inferior_data): New. (set_inferior_data): New. (inferior_data): New. (initialize_inferiors): New. (_initialize_inferiors): Register "add-inferior", "remove-inferior" and "clone-inferior" commands. * objfiles.h: Include "progspace.h". (struct objfile) <pspace>: New field. (symfile_objfile, object_files): Don't declare. (ALL_PSPACE_OBJFILES): New. (ALL_PSPACE_OBJFILES_SAFE): New. (ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust. (ALL_PSPACE_SYMTABS): New. (ALL_PRIMARY_SYMTABS): Adjust. (ALL_PSPACE_PRIMARY_SYMTABS): New. (ALL_PSYMTABS): Adjust. (ALL_PSPACE_PSYMTABS): New. * objfiles.c (object_files, symfile_objfile): Delete. (struct objfile_sspace_info): New. (objfiles_pspace_data): New. (objfiles_pspace_data_cleanup): New. (get_objfile_pspace_data): New. (objfiles_changed_p): Delete. (allocate_objfile): Set the objfile's program space. Adjust to reference objfiles_changed_p in pspace data. (free_objfile): Adjust to reference objfiles_changed_p in pspace data. (objfile_relocate): Ditto. (update_section_map): Add pspace argument. Adjust to iterate over objfiles in the passed in pspace. (find_pc_section): Delete sections and num_sections statics. Adjust to refer to program space's objfiles_changed_p. Adjust to refer to sections and num_sections store in the objfile's pspace data. (objfiles_changed): Adjust to reference objfiles_changed_p in pspace data. (_initialize_objfiles): New. * linespec.c (decode_all_digits, decode_dollar): Set the sal's program space. * source.c (current_source_pspace): New. (get_current_source_symtab_and_line): Set the sal's program space. (set_current_source_symtab_and_line): Set current_source_pspace. (select_source_symtab): Ditto. Use ALL_OBJFILES. (forget_cached_source_info): Iterate over all program spaces. * symfile.c (clear_symtab_users): Adjust. * symmisc.c (print_symbol_bcache_statistics): Iterate over all program spaces. (print_objfile_statistics): Ditto. (maintenance_print_msymbols): Ditto. (maintenance_print_objfiles): Ditto. (maintenance_info_symtabs): Ditto. (maintenance_info_psymtabs): Ditto. * symtab.h (SYMTAB_PSPACE): New. (struct symtab_and_line) <pspace>: New field. * symtab.c (init_sal): Clear the sal's program space. (find_pc_sect_symtab): Set the sal's program space. Switch thread and space. (append_expanded_sal): Add program space argument. Iterate over all program spaces. (expand_line_sal): Iterate over all program spaces. Switch program space. * target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New. (struct target_ops) <to_thread_address_space>: New field. (target_thread_address_space): Define. * target.c (target_detach): Only remove breakpoints from the inferior we're detaching. (target_thread_address_space): New. * defs.h (initialize_progspace): Declare. * top.c (gdb_init): Call it. * solist.h (struct so_list) <sspace>: New field. * solib.h (struct program_space): Forward declare. (solib_name_from_address): Adjust prototype. * solib.c (so_list_head): Replace with a macro referencing the program space. (update_solib_list): Set the so's program space. (solib_name_from_address): Add a program space argument and adjust. * solib-svr4.c (struct svr4_info) <pid>: Delete field. <interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low> <interp_plt_sect_high>: New fields. (svr4_info_p, svr4_info): Delete. (solib_svr4_sspace_data): New. (get_svr4_info): Rewrite. (svr4_sspace_data_cleanup): New. (open_symbol_file_object): Adjust. (svr4_default_sos): Adjust. (svr4_fetch_objfile_link_map): Adjust. (interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low) (interp_plt_sect_high): Delete. (svr4_in_dynsym_resolve_code): Adjust. (enable_break): Adjust. (svr4_clear_solib): Revert bit that removed the svr4_info here, and reinstate clearing debug_base, debug_loader_offset_p, debug_loader_offset and debug_loader_name. (_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't install an inferior_exit observer anymore. * printcmd.c (struct display) <pspace>: New field. (display_command): Set the display's sspace. (do_one_display): Match the display's sspace. (display_uses_solib_p): Ditto. * linux-fork.c (detach_fork): Moved to infrun.c. (_initialize_linux_fork): Moved "detach-on-fork" command to infrun.c. * infrun.c (detach_fork): Moved from linux-fork.c. (proceed_after_vfork_done): New. (handle_vfork_child_exec_or_exit): New. (follow_exec_mode_replace, follow_exec_mode_keep) (follow_exec_mode_names, follow_exec_mode_string) (show_follow_exec_mode_string): New. (follow_exec): New. Reinstate the mark_breakpoints_out call. Remove shared libraries before attaching new executable. If user wants to keep the inferior, keep it. (displaced_step_fixup): Adjust to pass an address space to the breakpoints module. (resume): Ditto. (clear_proceed_status): In all-stop mode, always clear the proceed status of all threads. (prepare_to_proceed): Adjust to pass an address space to the breakpoints module. (proceed): Ditto. (adjust_pc_after_break): Ditto. (handle_inferior_event): When handling a process exit, switch the program space to the inferior's that had exited. Call handle_vfork_child_exec_or_exit. Adjust to pass an address space to the breakpoints module. In non-stop mode, when following a fork and detach-fork is off, also resume the other branch. Handle TARGET_WAITKIND_VFORK_DONE. Set the program space in sals. (normal_stop): Prune inferiors. (_initialize_infrun): Install the new "follow-exec-mode" command. "detach-on-fork" moved here. * regcache.h (get_regcache_aspace): Declare. * regcache.c (struct regcache) <aspace>: New field. (regcache_xmalloc): Clear the aspace. (get_regcache_aspace): New. (regcache_cpy): Copy the aspace field. (regcache_cpy_no_passthrough): Ditto. (get_thread_regcache): Fetch the thread's address space from the target, and store it in the regcache. * infcall.c (call_function_by_hand): Set the sal's pspace. * arch-utils.c (default_has_shared_address_space): New. * arch-utils.h (default_has_shared_address_space): Declare. * gdbarch.sh (has_shared_address_space): New. * gdbarch.h, gdbarch.c: Regenerate. * linux-tdep.c: Include auxv.h, target.h, elf/common.h. (linux_has_shared_address_space): New. (_initialize_linux_tdep): Declare. * arm-tdep.c (arm_software_single_step): Pass the frame's address space to insert_single_step_breakpoint. * arm-linux-tdep.c (arm_linux_software_single_step): Pass the frame's pspace to breakpoint functions. * cris-tdep.c (crisv32_single_step_through_delay): Ditto. (cris_software_single_step): Ditto. * mips-tdep.c (deal_with_atomic_sequence): Add frame argument. Pass the frame's pspace to breakpoint functions. (mips_software_single_step): Adjust. (mips_single_step_through_delay): Adjust. * rs6000-aix-tdep.c (rs6000_software_single_step): Adjust. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust. * solib-irix.c (enable_break): Adjust to pass the current frame's address space to breakpoint functions. * sparc-tdep.c (sparc_software_single_step): Ditto. * spu-tdep.c (spu_software_single_step): Ditto. * alpha-tdep.c (alpha_software_single_step): Ditto. * record.c (record_wait): Adjust to pass an address space to the breakpoints module. * fork-child.c (fork_inferior): Set the new inferior's program and address spaces. * inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program and address spaces. (inf_ptrace_attach): Set the inferior's program and address spaces. * linux-nat.c: Include "solib.h". (linux_child_follow_fork): Manage parent and child's program and address spaces. Clone the parent's program space if necessary. Don't wait for the vfork to be done here. Refuse to resume if following the vfork parent while leaving the child stopped. (resume_callback): Don't resume a vfork parent. (linux_nat_resume): Also check for pending events in the lp->waitstatus field. (linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE events to the core. (stop_wait_callback): Don't wait for SIGSTOP on vfork parents. (cancel_breakpoint): Adjust. * linux-thread-db.c (thread_db_wait): Don't remove thread event breakpoints here. (thread_db_mourn_inferior): Don't mark breakpoints out here. Remove thread event breakpoints after mourning. * corelow.c: Include progspace.h. (core_open): Set the inferior's program and address spaces. * remote.c (remote_add_inferior): Set the new inferior's program and address spaces. (remote_start_remote): Update address spaces. (extended_remote_create_inferior_1): Don't init the thread list if we already debugging other inferiors. * darwin-nat.c (darwin_attach): Set the new inferior's program and address spaces. * gnu-nat.c (gnu_attach): Ditto. * go32-nat.c (go32_create_inferior): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto. * monitor.c (monitor_open): Ditto. * nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto. * procfs.c (do_attach): Ditto. * windows-nat.c (do_initial_windows_stuff): Ditto. * inflow.c (inferior_process_group) (terminal_init_inferior_with_pgrp, terminal_inferior, (terminal_ours_1, inflow_inferior_exit, copy_terminal_info) (child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust to use per-inferior data instead of inferior->terminal_info. (inflow_inferior_data): New. (inflow_new_inferior): Delete. (inflow_inferior_data_cleanup): New. (get_inflow_inferior_data): New. * mi/mi-interp.c (mi_new_inferior): Rename to... (mi_inferior_appeared): ... this. (mi_interpreter_init): Adjust. * tui/tui-disasm.c: Include "progspace.h". (tui_set_disassem_content): Pass an address space to breakpoint_here_p. * NEWS: Mention multi-program debugging support. Mention new commands "add-inferior", "clone-inferior", "remove-inferior", "maint info program-spaces", and new option "set follow-exec-mode". 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * observer.texi (new_inferior): Rename to... (inferior_appeared): ... this. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/testsuite/ * gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork". * gdb.base/foll-exec.exp: Adjust to expect a process id before "Executing new program". * gdb.base/foll-fork.exp: Adjust to spell out "follow-fork". * gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being left listed after having been killed. * gdb.base/attach.exp: Adjust to spell out "symbol-file". * gdb.base/maint.exp: Adjust test. * Makefile.in (ALL_SUBDIRS): Add gdb.multi. * gdb.multi/Makefile.in: New. * gdb.multi/base.exp: New. * gdb.multi/goodbye.c: New. * gdb.multi/hangout.c: New. * gdb.multi/hello.c: New. * gdb.multi/bkpt-multi-exec.c: New. * gdb.multi/bkpt-multi-exec.exp: New. * gdb.multi/crashme.c: New. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * gdb.texinfo (Inferiors): Rename node to ... (Inferiors and Programs): ... this. Mention running multiple programs in the same debug session. <info inferiors>: Mention the new 'Executable' column if "info inferiors". Update examples. Document the "add-inferior", "clone-inferior", "remove-inferior" and "maint info program-spaces" commands. (Process): Rename node to... (Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
* New commands (for set/show, see "New options" below)
record save [<FILENAME>]
Save a file (in core file format) containing the process record
execution log for replay debugging at a later time.
record restore <FILENAME>
Restore the process record execution log that was saved at an
earlier time, for replay debugging.
2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> Add base multi-executable/process support to GDB. gdb/ * Makefile.in (SFILES): Add progspace.c. (COMMON_OBS): Add progspace.o. * progspace.h: New. * progspace.c: New. * breakpoint.h (struct bp_target_info) <placed_address_space>: New field. (struct bp_location) <pspace>: New field. (struct breakpoint) <pspace>: New field. (bpstat_stop_status, breakpoint_here_p) (moribund_breakpoint_here_p, breakpoint_inserted_here_p) (regular_breakpoint_inserted_here_p) (software_breakpoint_inserted_here_p, breakpoint_thread_match) (set_default_breakpoint): Adjust prototypes. (remove_breakpoints_pid, breakpoint_program_space_exit): Declare. (insert_single_step_breakpoint, deprecated_insert_raw_breakpoint): Adjust prototypes. * breakpoint.c (executing_startup): Delete. (default_breakpoint_sspace): New. (breakpoint_restore_shadows): Skip if the address space doesn't match. (update_watchpoint): Record the frame's program space in the breakpoint location. (insert_bp_location): Record the address space in target_info. Adjust to pass the symbol space to solib_name_from_address. (breakpoint_program_space_exit): New. (insert_breakpoint_locations): Switch the symbol space and thread when inserting breakpoints. Don't insert breakpoints in a vfork parent waiting for vfork done if we're not attached to the vfork child. (remove_breakpoints_pid): New. (reattach_breakpoints): Switch to a thread of PID. Ignore breakpoints of other symbol spaces. (create_internal_breakpoint): Store the symbol space in the sal. (create_longjmp_master_breakpoint): Iterate over all symbol spaces. (update_breakpoints_after_exec): Ignore breakpoints for other symbol spaces. (remove_breakpoint): Rename to ... (remove_breakpoint_1): ... this. Pass the breakpoints symbol space to solib_name_from_address. (remove_breakpoint): New. (mark_breakpoints_out): Ignore breakpoints from other symbol spaces. (breakpoint_init_inferior): Ditto. (breakpoint_here_p): Add an address space argument and adjust to use breakpoint_address_match. (moribund_breakpoint_here_p): Ditto. (regular_breakpoint_inserted_here_p): Ditto. (breakpoint_inserted_here_p): Ditto. (software_breakpoint_inserted_here_p): Ditto. (breakpoint_thread_match): Ditto. (bpstat_check_location): Ditto. (bpstat_stop_status): Ditto. (print_breakpoint_location): If there's a location to print, switch the current symbol space. (print_one_breakpoint_location): Add `allflag' argument. (print_one_breakpoint): Ditto. Adjust. (do_captured_breakpoint_query): Adjust. (breakpoint_1): Adjust. (breakpoint_has_pc): Also match the symbol space. (describe_other_breakpoints): Add a symbol space argument and adjust. (set_default_breakpoint): Add a symbol space argument. Set default_breakpoint_sspace. (breakpoint_address_match): New. (check_duplicates_for): Add an address space argument, and adjust. (set_raw_breakpoint): Record the symbol space in the location and in the breakpoint. (set_longjmp_breakpoint): Skip longjmp master breakpoints from other symbol spaces. (remove_thread_event_breakpoints, remove_solib_event_breakpoints) (disable_breakpoints_in_shlibs): Skip breakpoints from other symbol spaces. (disable_breakpoints_in_unloaded_shlib): Match symbol spaces. (create_catchpoint): Set the symbol space in the sal. (disable_breakpoints_before_startup): Skip breakpoints from other symbol spaces. Set executing_startup in the current symbol space. (enable_breakpoints_after_startup): Clear executing_startup in the current symbol space. Skip breakpoints from other symbol spaces. (clone_momentary_breakpoint): Also copy the symbol space. (add_location_to_breakpoint): Set the location's symbol space. (bp_loc_is_permanent): Switch thread and symbol space. (create_breakpoint): Adjust. (expand_line_sal_maybe): Expand comment to mention symbol spaces. Switch thread and symbol space when reading memory. (parse_breakpoint_sals): Set the symbol space in the sal. (break_command_really): Ditto. (skip_prologue_sal): Switch and space. (resolve_sal_pc): Ditto. (watch_command_1): Record the symbol space in the sal. (create_ada_exception_breakpoint): Adjust. (clear_command): Adjust. Match symbol spaces. (update_global_location_list): Use breakpoint_address_match. (breakpoint_re_set_one): Switch thread and space. (breakpoint_re_set): Save symbol space. (breakpoint_re_set_thread): Also reset the symbol space. (deprecated_insert_raw_breakpoint): Add an address space argument. Adjust. (insert_single_step_breakpoint): Ditto. (single_step_breakpoint_inserted_here_p): Ditto. (clear_syscall_counts): New. (_initialize_breakpoint): Install it as inferior_exit observer. * exec.h: Include "progspace.h". (exec_bfd, exec_bfd_mtime): New defines. (exec_close): Declare. * exec.c: Include "gdbthread.h" and "progspace.h". (exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete. (using_exec_ops): New. (exec_close_1): Rename to exec_close, and make public. (exec_close): Rename to exec_close_1, and adjust all callers. Add description. Remove target sections and close executables from all program spaces. (exec_file_attach): Add comment. (add_target_sections): Check on `using_exec_ops' to check if the target should be pushed. (remove_target_sections): Only unpush the target if there are no more target sections in any symbol space. * gdbcore.h: Include "exec.h". (exec_bfd, exec_bfd_mtime): Remove declarations. * frame.h (get_frame_program_space, get_frame_address_space) (frame_unwind_program_space): Declare. * frame.c (struct frame_info) <pspace, aspace>: New fields. (create_sentinel_frame): Add program space argument. Set the pspace and aspace fields of the frame object. (get_current_frame, create_new_frame): Adjust. (get_frame_program_space): New. (frame_unwind_program_space): New. (get_frame_address_space): New. * stack.c (print_frame_info): Adjust. (print_frame): Use the frame's program space. * gdbthread.h (any_live_thread_of_process): Declare. * thread.c (any_live_thread_of_process): New. (switch_to_thread): Switch the program space as well. (restore_selected_frame): Don't warn if trying to restore frame level 0. * inferior.h: Include "progspace.h". (detach_fork): Declare. (struct inferior) <removable, aspace, pspace> <vfork_parent, vfork_child, pending_detach> <waiting_for_vfork_done>: New fields. <terminal_info>: Remove field. <data, num_data>: New fields. (register_inferior_data, register_inferior_data_with_cleanup) (clear_inferior_data, set_inferior_data, inferior_data): Declare. (exit_inferior, exit_inferior_silent, exit_inferior_num_silent) (inferior_appeared): Declare. (find_inferior_pid): Typo. (find_inferior_id, find_inferior_for_program_space): Declare. (set_current_inferior, save_current_inferior, prune_inferiors) (number_of_inferiors): Declare. (inferior_list): Declare. * inferior.c: Include "gdbcore.h" and "symfile.h". (inferior_list): Make public. (delete_inferior_1): Always delete thread silently. (find_inferior_id): Make public. (current_inferior_): New. (current_inferior): Use it. (set_current_inferior): New. (restore_inferior): New. (save_current_inferior): New. (free_inferior): Free the per-inferior data. (add_inferior_silent): Allocate per-inferior data. Call inferior_appeared. (delete_threads_of_inferior): New. (delete_inferior_1): Adjust interface to take an inferior pointer. (delete_inferior): Adjust. (delete_inferior_silent): Adjust. (exit_inferior_1): New. (exit_inferior): New. (exit_inferior_silent): New. (exit_inferior_num_silent): New. (detach_inferior): Adjust. (inferior_appeared): New. (discard_all_inferiors): Adjust. (find_inferior_id): Make public. Assert pid is not zero. (find_inferior_for_program_space): New. (have_inferiors): Check if we have any inferior with pid not zero. (have_live_inferiors): Go over all pushed targets looking for process_stratum. (prune_inferiors): New. (number_of_inferiors): New. (print_inferior): Add executable column. Print vfork parent/child relationships. (inferior_command): Adjust to cope with not running inferiors. (remove_inferior_command): New. (add_inferior_command): New. (clone_inferior_command): New. (struct inferior_data): New. (struct inferior_data_registration): New. (struct inferior_data_registry): New. (inferior_data_registry): New. (register_inferior_data_with_cleanup): New. (register_inferior_data): New. (inferior_alloc_data): New. (inferior_free_data): New. (clear_inferior_data): New. (set_inferior_data): New. (inferior_data): New. (initialize_inferiors): New. (_initialize_inferiors): Register "add-inferior", "remove-inferior" and "clone-inferior" commands. * objfiles.h: Include "progspace.h". (struct objfile) <pspace>: New field. (symfile_objfile, object_files): Don't declare. (ALL_PSPACE_OBJFILES): New. (ALL_PSPACE_OBJFILES_SAFE): New. (ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust. (ALL_PSPACE_SYMTABS): New. (ALL_PRIMARY_SYMTABS): Adjust. (ALL_PSPACE_PRIMARY_SYMTABS): New. (ALL_PSYMTABS): Adjust. (ALL_PSPACE_PSYMTABS): New. * objfiles.c (object_files, symfile_objfile): Delete. (struct objfile_sspace_info): New. (objfiles_pspace_data): New. (objfiles_pspace_data_cleanup): New. (get_objfile_pspace_data): New. (objfiles_changed_p): Delete. (allocate_objfile): Set the objfile's program space. Adjust to reference objfiles_changed_p in pspace data. (free_objfile): Adjust to reference objfiles_changed_p in pspace data. (objfile_relocate): Ditto. (update_section_map): Add pspace argument. Adjust to iterate over objfiles in the passed in pspace. (find_pc_section): Delete sections and num_sections statics. Adjust to refer to program space's objfiles_changed_p. Adjust to refer to sections and num_sections store in the objfile's pspace data. (objfiles_changed): Adjust to reference objfiles_changed_p in pspace data. (_initialize_objfiles): New. * linespec.c (decode_all_digits, decode_dollar): Set the sal's program space. * source.c (current_source_pspace): New. (get_current_source_symtab_and_line): Set the sal's program space. (set_current_source_symtab_and_line): Set current_source_pspace. (select_source_symtab): Ditto. Use ALL_OBJFILES. (forget_cached_source_info): Iterate over all program spaces. * symfile.c (clear_symtab_users): Adjust. * symmisc.c (print_symbol_bcache_statistics): Iterate over all program spaces. (print_objfile_statistics): Ditto. (maintenance_print_msymbols): Ditto. (maintenance_print_objfiles): Ditto. (maintenance_info_symtabs): Ditto. (maintenance_info_psymtabs): Ditto. * symtab.h (SYMTAB_PSPACE): New. (struct symtab_and_line) <pspace>: New field. * symtab.c (init_sal): Clear the sal's program space. (find_pc_sect_symtab): Set the sal's program space. Switch thread and space. (append_expanded_sal): Add program space argument. Iterate over all program spaces. (expand_line_sal): Iterate over all program spaces. Switch program space. * target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New. (struct target_ops) <to_thread_address_space>: New field. (target_thread_address_space): Define. * target.c (target_detach): Only remove breakpoints from the inferior we're detaching. (target_thread_address_space): New. * defs.h (initialize_progspace): Declare. * top.c (gdb_init): Call it. * solist.h (struct so_list) <sspace>: New field. * solib.h (struct program_space): Forward declare. (solib_name_from_address): Adjust prototype. * solib.c (so_list_head): Replace with a macro referencing the program space. (update_solib_list): Set the so's program space. (solib_name_from_address): Add a program space argument and adjust. * solib-svr4.c (struct svr4_info) <pid>: Delete field. <interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low> <interp_plt_sect_high>: New fields. (svr4_info_p, svr4_info): Delete. (solib_svr4_sspace_data): New. (get_svr4_info): Rewrite. (svr4_sspace_data_cleanup): New. (open_symbol_file_object): Adjust. (svr4_default_sos): Adjust. (svr4_fetch_objfile_link_map): Adjust. (interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low) (interp_plt_sect_high): Delete. (svr4_in_dynsym_resolve_code): Adjust. (enable_break): Adjust. (svr4_clear_solib): Revert bit that removed the svr4_info here, and reinstate clearing debug_base, debug_loader_offset_p, debug_loader_offset and debug_loader_name. (_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't install an inferior_exit observer anymore. * printcmd.c (struct display) <pspace>: New field. (display_command): Set the display's sspace. (do_one_display): Match the display's sspace. (display_uses_solib_p): Ditto. * linux-fork.c (detach_fork): Moved to infrun.c. (_initialize_linux_fork): Moved "detach-on-fork" command to infrun.c. * infrun.c (detach_fork): Moved from linux-fork.c. (proceed_after_vfork_done): New. (handle_vfork_child_exec_or_exit): New. (follow_exec_mode_replace, follow_exec_mode_keep) (follow_exec_mode_names, follow_exec_mode_string) (show_follow_exec_mode_string): New. (follow_exec): New. Reinstate the mark_breakpoints_out call. Remove shared libraries before attaching new executable. If user wants to keep the inferior, keep it. (displaced_step_fixup): Adjust to pass an address space to the breakpoints module. (resume): Ditto. (clear_proceed_status): In all-stop mode, always clear the proceed status of all threads. (prepare_to_proceed): Adjust to pass an address space to the breakpoints module. (proceed): Ditto. (adjust_pc_after_break): Ditto. (handle_inferior_event): When handling a process exit, switch the program space to the inferior's that had exited. Call handle_vfork_child_exec_or_exit. Adjust to pass an address space to the breakpoints module. In non-stop mode, when following a fork and detach-fork is off, also resume the other branch. Handle TARGET_WAITKIND_VFORK_DONE. Set the program space in sals. (normal_stop): Prune inferiors. (_initialize_infrun): Install the new "follow-exec-mode" command. "detach-on-fork" moved here. * regcache.h (get_regcache_aspace): Declare. * regcache.c (struct regcache) <aspace>: New field. (regcache_xmalloc): Clear the aspace. (get_regcache_aspace): New. (regcache_cpy): Copy the aspace field. (regcache_cpy_no_passthrough): Ditto. (get_thread_regcache): Fetch the thread's address space from the target, and store it in the regcache. * infcall.c (call_function_by_hand): Set the sal's pspace. * arch-utils.c (default_has_shared_address_space): New. * arch-utils.h (default_has_shared_address_space): Declare. * gdbarch.sh (has_shared_address_space): New. * gdbarch.h, gdbarch.c: Regenerate. * linux-tdep.c: Include auxv.h, target.h, elf/common.h. (linux_has_shared_address_space): New. (_initialize_linux_tdep): Declare. * arm-tdep.c (arm_software_single_step): Pass the frame's address space to insert_single_step_breakpoint. * arm-linux-tdep.c (arm_linux_software_single_step): Pass the frame's pspace to breakpoint functions. * cris-tdep.c (crisv32_single_step_through_delay): Ditto. (cris_software_single_step): Ditto. * mips-tdep.c (deal_with_atomic_sequence): Add frame argument. Pass the frame's pspace to breakpoint functions. (mips_software_single_step): Adjust. (mips_single_step_through_delay): Adjust. * rs6000-aix-tdep.c (rs6000_software_single_step): Adjust. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust. * solib-irix.c (enable_break): Adjust to pass the current frame's address space to breakpoint functions. * sparc-tdep.c (sparc_software_single_step): Ditto. * spu-tdep.c (spu_software_single_step): Ditto. * alpha-tdep.c (alpha_software_single_step): Ditto. * record.c (record_wait): Adjust to pass an address space to the breakpoints module. * fork-child.c (fork_inferior): Set the new inferior's program and address spaces. * inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program and address spaces. (inf_ptrace_attach): Set the inferior's program and address spaces. * linux-nat.c: Include "solib.h". (linux_child_follow_fork): Manage parent and child's program and address spaces. Clone the parent's program space if necessary. Don't wait for the vfork to be done here. Refuse to resume if following the vfork parent while leaving the child stopped. (resume_callback): Don't resume a vfork parent. (linux_nat_resume): Also check for pending events in the lp->waitstatus field. (linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE events to the core. (stop_wait_callback): Don't wait for SIGSTOP on vfork parents. (cancel_breakpoint): Adjust. * linux-thread-db.c (thread_db_wait): Don't remove thread event breakpoints here. (thread_db_mourn_inferior): Don't mark breakpoints out here. Remove thread event breakpoints after mourning. * corelow.c: Include progspace.h. (core_open): Set the inferior's program and address spaces. * remote.c (remote_add_inferior): Set the new inferior's program and address spaces. (remote_start_remote): Update address spaces. (extended_remote_create_inferior_1): Don't init the thread list if we already debugging other inferiors. * darwin-nat.c (darwin_attach): Set the new inferior's program and address spaces. * gnu-nat.c (gnu_attach): Ditto. * go32-nat.c (go32_create_inferior): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto. * monitor.c (monitor_open): Ditto. * nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto. * procfs.c (do_attach): Ditto. * windows-nat.c (do_initial_windows_stuff): Ditto. * inflow.c (inferior_process_group) (terminal_init_inferior_with_pgrp, terminal_inferior, (terminal_ours_1, inflow_inferior_exit, copy_terminal_info) (child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust to use per-inferior data instead of inferior->terminal_info. (inflow_inferior_data): New. (inflow_new_inferior): Delete. (inflow_inferior_data_cleanup): New. (get_inflow_inferior_data): New. * mi/mi-interp.c (mi_new_inferior): Rename to... (mi_inferior_appeared): ... this. (mi_interpreter_init): Adjust. * tui/tui-disasm.c: Include "progspace.h". (tui_set_disassem_content): Pass an address space to breakpoint_here_p. * NEWS: Mention multi-program debugging support. Mention new commands "add-inferior", "clone-inferior", "remove-inferior", "maint info program-spaces", and new option "set follow-exec-mode". 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * observer.texi (new_inferior): Rename to... (inferior_appeared): ... this. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/testsuite/ * gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork". * gdb.base/foll-exec.exp: Adjust to expect a process id before "Executing new program". * gdb.base/foll-fork.exp: Adjust to spell out "follow-fork". * gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being left listed after having been killed. * gdb.base/attach.exp: Adjust to spell out "symbol-file". * gdb.base/maint.exp: Adjust test. * Makefile.in (ALL_SUBDIRS): Add gdb.multi. * gdb.multi/Makefile.in: New. * gdb.multi/base.exp: New. * gdb.multi/goodbye.c: New. * gdb.multi/hangout.c: New. * gdb.multi/hello.c: New. * gdb.multi/bkpt-multi-exec.c: New. * gdb.multi/bkpt-multi-exec.exp: New. * gdb.multi/crashme.c: New. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * gdb.texinfo (Inferiors): Rename node to ... (Inferiors and Programs): ... this. Mention running multiple programs in the same debug session. <info inferiors>: Mention the new 'Executable' column if "info inferiors". Update examples. Document the "add-inferior", "clone-inferior", "remove-inferior" and "maint info program-spaces" commands. (Process): Rename node to... (Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
add-inferior [-copies <N>] [-exec <FILENAME>]
Add a new inferior.
clone-inferior [-copies <N>] [ID]
Make a new inferior ready to execute the same program another
inferior has loaded.
remove-inferior ID
Remove an inferior.
maint info program-spaces
List the program spaces loaded into GDB.
set remote interrupt-sequence [Ctrl-C | BREAK | BREAK-g]
show remote interrupt-sequence
Allow the user to select one of ^C, a BREAK signal or BREAK-g
as the sequence to the remote target in order to interrupt the execution.
Ctrl-C is a default. Some system prefers BREAK which is high level of
serial line for some certain time. Linux kernel prefers BREAK-g, a.k.a
Magic SysRq g. It is BREAK signal and character 'g'.
set remote interrupt-on-connect [on | off]
show remote interrupt-on-connect
When interrupt-on-connect is ON, gdb sends interrupt-sequence to
remote target when gdb connects to it. This is needed when you debug
Linux kernel.
set remotebreak [on | off]
show remotebreak
Deprecated. Use "set/show remote interrupt-sequence" instead.
tvariable $NAME [ = EXP ]
Create or modify a trace state variable.
info tvariables
List trace state variables and their values.
delete tvariable $NAME ...
Delete one or more trace state variables.
teval EXPR, ...
Evaluate the given expressions without collecting anything into the
trace buffer. (Valid in tracepoint actions only.)
Add fast tracepoints. * arch-utils.h (default_fast_tracepoint_valid_at): Declare. * arch-utils.c (default_fast_tracepoint_valid_at): New function. * breakpoint.h (enum bptype): Add bp_fast_tracepoint. * breakpoint.c (tracepoint_type): New function. (ALL_TRACEPOINTS): Use it. (should_be_inserted): Ditto. (bpstat_check_location): Ditto. (print_one_breakpoint_location): Ditto. (user_settable_breakpoint): Ditto. (set_breakpoint_location_function): Ditto. (disable_breakpoints_in_shlibs): Ditto. (delete_trace_command): Ditto. (print_it_typical): Add bp_fast_tracepoint case. (bpstat_what): Ditto. (print_one_breakpoint_location): Ditto. (allocate_bp_location): Ditto. (mention): Ditto. (breakpoint_re_set_one): Ditto. (disable_command): Ditto. (enable_command): Ditto. (check_fast_tracepoint_sals): New function. (break_command_really): Call it. (ftrace_command): New function. (_initialize_breakpoint): Add ftrace command. * gdbarch.sh (fast_tracepoint_valid_at): New. * gdbarch.h, gdbarch.c: Regenerate. * i386-tdep.c (i386_fast_tracepoint_valid_at): New function. (i386_gdbarch_init): Use it. * remote.c (struct remote_state): New field fast_tracepoints. (PACKET_FastTracepoints): New packet config type. (remote_fast_tracepoint_feature): New function. (remote_protocol_features): Add FastTracepoints. (remote_supports_fast_tracepoints): New function. (_initialize_remote): Add FastTracepoints. * tracepoint.c (download_tracepoint): Add fast tracepoint option. * NEWS: Mention fast tracepoints. * gdb.texinfo (Create and Delete Tracepoints): Describe fast tracepoints. (Tracepoint Packets): Describe remote protocol for fast tracepoints. * gdb.trace/tracecmd.exp: Test ftrace.
2010-01-06 05:20:27 +01:00
ftrace FN / FILE:LINE / *ADDR
Define a fast tracepoint at the given function, line, or address.
* New expression syntax
GDB now parses the 0b prefix of binary numbers the same way as GCC does.
GDB now parses 0b101010 identically with 42.
2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> Add base multi-executable/process support to GDB. gdb/ * Makefile.in (SFILES): Add progspace.c. (COMMON_OBS): Add progspace.o. * progspace.h: New. * progspace.c: New. * breakpoint.h (struct bp_target_info) <placed_address_space>: New field. (struct bp_location) <pspace>: New field. (struct breakpoint) <pspace>: New field. (bpstat_stop_status, breakpoint_here_p) (moribund_breakpoint_here_p, breakpoint_inserted_here_p) (regular_breakpoint_inserted_here_p) (software_breakpoint_inserted_here_p, breakpoint_thread_match) (set_default_breakpoint): Adjust prototypes. (remove_breakpoints_pid, breakpoint_program_space_exit): Declare. (insert_single_step_breakpoint, deprecated_insert_raw_breakpoint): Adjust prototypes. * breakpoint.c (executing_startup): Delete. (default_breakpoint_sspace): New. (breakpoint_restore_shadows): Skip if the address space doesn't match. (update_watchpoint): Record the frame's program space in the breakpoint location. (insert_bp_location): Record the address space in target_info. Adjust to pass the symbol space to solib_name_from_address. (breakpoint_program_space_exit): New. (insert_breakpoint_locations): Switch the symbol space and thread when inserting breakpoints. Don't insert breakpoints in a vfork parent waiting for vfork done if we're not attached to the vfork child. (remove_breakpoints_pid): New. (reattach_breakpoints): Switch to a thread of PID. Ignore breakpoints of other symbol spaces. (create_internal_breakpoint): Store the symbol space in the sal. (create_longjmp_master_breakpoint): Iterate over all symbol spaces. (update_breakpoints_after_exec): Ignore breakpoints for other symbol spaces. (remove_breakpoint): Rename to ... (remove_breakpoint_1): ... this. Pass the breakpoints symbol space to solib_name_from_address. (remove_breakpoint): New. (mark_breakpoints_out): Ignore breakpoints from other symbol spaces. (breakpoint_init_inferior): Ditto. (breakpoint_here_p): Add an address space argument and adjust to use breakpoint_address_match. (moribund_breakpoint_here_p): Ditto. (regular_breakpoint_inserted_here_p): Ditto. (breakpoint_inserted_here_p): Ditto. (software_breakpoint_inserted_here_p): Ditto. (breakpoint_thread_match): Ditto. (bpstat_check_location): Ditto. (bpstat_stop_status): Ditto. (print_breakpoint_location): If there's a location to print, switch the current symbol space. (print_one_breakpoint_location): Add `allflag' argument. (print_one_breakpoint): Ditto. Adjust. (do_captured_breakpoint_query): Adjust. (breakpoint_1): Adjust. (breakpoint_has_pc): Also match the symbol space. (describe_other_breakpoints): Add a symbol space argument and adjust. (set_default_breakpoint): Add a symbol space argument. Set default_breakpoint_sspace. (breakpoint_address_match): New. (check_duplicates_for): Add an address space argument, and adjust. (set_raw_breakpoint): Record the symbol space in the location and in the breakpoint. (set_longjmp_breakpoint): Skip longjmp master breakpoints from other symbol spaces. (remove_thread_event_breakpoints, remove_solib_event_breakpoints) (disable_breakpoints_in_shlibs): Skip breakpoints from other symbol spaces. (disable_breakpoints_in_unloaded_shlib): Match symbol spaces. (create_catchpoint): Set the symbol space in the sal. (disable_breakpoints_before_startup): Skip breakpoints from other symbol spaces. Set executing_startup in the current symbol space. (enable_breakpoints_after_startup): Clear executing_startup in the current symbol space. Skip breakpoints from other symbol spaces. (clone_momentary_breakpoint): Also copy the symbol space. (add_location_to_breakpoint): Set the location's symbol space. (bp_loc_is_permanent): Switch thread and symbol space. (create_breakpoint): Adjust. (expand_line_sal_maybe): Expand comment to mention symbol spaces. Switch thread and symbol space when reading memory. (parse_breakpoint_sals): Set the symbol space in the sal. (break_command_really): Ditto. (skip_prologue_sal): Switch and space. (resolve_sal_pc): Ditto. (watch_command_1): Record the symbol space in the sal. (create_ada_exception_breakpoint): Adjust. (clear_command): Adjust. Match symbol spaces. (update_global_location_list): Use breakpoint_address_match. (breakpoint_re_set_one): Switch thread and space. (breakpoint_re_set): Save symbol space. (breakpoint_re_set_thread): Also reset the symbol space. (deprecated_insert_raw_breakpoint): Add an address space argument. Adjust. (insert_single_step_breakpoint): Ditto. (single_step_breakpoint_inserted_here_p): Ditto. (clear_syscall_counts): New. (_initialize_breakpoint): Install it as inferior_exit observer. * exec.h: Include "progspace.h". (exec_bfd, exec_bfd_mtime): New defines. (exec_close): Declare. * exec.c: Include "gdbthread.h" and "progspace.h". (exec_bfd, exec_bfd_mtime, current_target_sections_1): Delete. (using_exec_ops): New. (exec_close_1): Rename to exec_close, and make public. (exec_close): Rename to exec_close_1, and adjust all callers. Add description. Remove target sections and close executables from all program spaces. (exec_file_attach): Add comment. (add_target_sections): Check on `using_exec_ops' to check if the target should be pushed. (remove_target_sections): Only unpush the target if there are no more target sections in any symbol space. * gdbcore.h: Include "exec.h". (exec_bfd, exec_bfd_mtime): Remove declarations. * frame.h (get_frame_program_space, get_frame_address_space) (frame_unwind_program_space): Declare. * frame.c (struct frame_info) <pspace, aspace>: New fields. (create_sentinel_frame): Add program space argument. Set the pspace and aspace fields of the frame object. (get_current_frame, create_new_frame): Adjust. (get_frame_program_space): New. (frame_unwind_program_space): New. (get_frame_address_space): New. * stack.c (print_frame_info): Adjust. (print_frame): Use the frame's program space. * gdbthread.h (any_live_thread_of_process): Declare. * thread.c (any_live_thread_of_process): New. (switch_to_thread): Switch the program space as well. (restore_selected_frame): Don't warn if trying to restore frame level 0. * inferior.h: Include "progspace.h". (detach_fork): Declare. (struct inferior) <removable, aspace, pspace> <vfork_parent, vfork_child, pending_detach> <waiting_for_vfork_done>: New fields. <terminal_info>: Remove field. <data, num_data>: New fields. (register_inferior_data, register_inferior_data_with_cleanup) (clear_inferior_data, set_inferior_data, inferior_data): Declare. (exit_inferior, exit_inferior_silent, exit_inferior_num_silent) (inferior_appeared): Declare. (find_inferior_pid): Typo. (find_inferior_id, find_inferior_for_program_space): Declare. (set_current_inferior, save_current_inferior, prune_inferiors) (number_of_inferiors): Declare. (inferior_list): Declare. * inferior.c: Include "gdbcore.h" and "symfile.h". (inferior_list): Make public. (delete_inferior_1): Always delete thread silently. (find_inferior_id): Make public. (current_inferior_): New. (current_inferior): Use it. (set_current_inferior): New. (restore_inferior): New. (save_current_inferior): New. (free_inferior): Free the per-inferior data. (add_inferior_silent): Allocate per-inferior data. Call inferior_appeared. (delete_threads_of_inferior): New. (delete_inferior_1): Adjust interface to take an inferior pointer. (delete_inferior): Adjust. (delete_inferior_silent): Adjust. (exit_inferior_1): New. (exit_inferior): New. (exit_inferior_silent): New. (exit_inferior_num_silent): New. (detach_inferior): Adjust. (inferior_appeared): New. (discard_all_inferiors): Adjust. (find_inferior_id): Make public. Assert pid is not zero. (find_inferior_for_program_space): New. (have_inferiors): Check if we have any inferior with pid not zero. (have_live_inferiors): Go over all pushed targets looking for process_stratum. (prune_inferiors): New. (number_of_inferiors): New. (print_inferior): Add executable column. Print vfork parent/child relationships. (inferior_command): Adjust to cope with not running inferiors. (remove_inferior_command): New. (add_inferior_command): New. (clone_inferior_command): New. (struct inferior_data): New. (struct inferior_data_registration): New. (struct inferior_data_registry): New. (inferior_data_registry): New. (register_inferior_data_with_cleanup): New. (register_inferior_data): New. (inferior_alloc_data): New. (inferior_free_data): New. (clear_inferior_data): New. (set_inferior_data): New. (inferior_data): New. (initialize_inferiors): New. (_initialize_inferiors): Register "add-inferior", "remove-inferior" and "clone-inferior" commands. * objfiles.h: Include "progspace.h". (struct objfile) <pspace>: New field. (symfile_objfile, object_files): Don't declare. (ALL_PSPACE_OBJFILES): New. (ALL_PSPACE_OBJFILES_SAFE): New. (ALL_OBJFILES, ALL_OBJFILES_SAFE): Adjust. (ALL_PSPACE_SYMTABS): New. (ALL_PRIMARY_SYMTABS): Adjust. (ALL_PSPACE_PRIMARY_SYMTABS): New. (ALL_PSYMTABS): Adjust. (ALL_PSPACE_PSYMTABS): New. * objfiles.c (object_files, symfile_objfile): Delete. (struct objfile_sspace_info): New. (objfiles_pspace_data): New. (objfiles_pspace_data_cleanup): New. (get_objfile_pspace_data): New. (objfiles_changed_p): Delete. (allocate_objfile): Set the objfile's program space. Adjust to reference objfiles_changed_p in pspace data. (free_objfile): Adjust to reference objfiles_changed_p in pspace data. (objfile_relocate): Ditto. (update_section_map): Add pspace argument. Adjust to iterate over objfiles in the passed in pspace. (find_pc_section): Delete sections and num_sections statics. Adjust to refer to program space's objfiles_changed_p. Adjust to refer to sections and num_sections store in the objfile's pspace data. (objfiles_changed): Adjust to reference objfiles_changed_p in pspace data. (_initialize_objfiles): New. * linespec.c (decode_all_digits, decode_dollar): Set the sal's program space. * source.c (current_source_pspace): New. (get_current_source_symtab_and_line): Set the sal's program space. (set_current_source_symtab_and_line): Set current_source_pspace. (select_source_symtab): Ditto. Use ALL_OBJFILES. (forget_cached_source_info): Iterate over all program spaces. * symfile.c (clear_symtab_users): Adjust. * symmisc.c (print_symbol_bcache_statistics): Iterate over all program spaces. (print_objfile_statistics): Ditto. (maintenance_print_msymbols): Ditto. (maintenance_print_objfiles): Ditto. (maintenance_info_symtabs): Ditto. (maintenance_info_psymtabs): Ditto. * symtab.h (SYMTAB_PSPACE): New. (struct symtab_and_line) <pspace>: New field. * symtab.c (init_sal): Clear the sal's program space. (find_pc_sect_symtab): Set the sal's program space. Switch thread and space. (append_expanded_sal): Add program space argument. Iterate over all program spaces. (expand_line_sal): Iterate over all program spaces. Switch program space. * target.h (enum target_waitkind) <TARGET_WAITKIND_VFORK_DONE>: New. (struct target_ops) <to_thread_address_space>: New field. (target_thread_address_space): Define. * target.c (target_detach): Only remove breakpoints from the inferior we're detaching. (target_thread_address_space): New. * defs.h (initialize_progspace): Declare. * top.c (gdb_init): Call it. * solist.h (struct so_list) <sspace>: New field. * solib.h (struct program_space): Forward declare. (solib_name_from_address): Adjust prototype. * solib.c (so_list_head): Replace with a macro referencing the program space. (update_solib_list): Set the so's program space. (solib_name_from_address): Add a program space argument and adjust. * solib-svr4.c (struct svr4_info) <pid>: Delete field. <interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low> <interp_plt_sect_high>: New fields. (svr4_info_p, svr4_info): Delete. (solib_svr4_sspace_data): New. (get_svr4_info): Rewrite. (svr4_sspace_data_cleanup): New. (open_symbol_file_object): Adjust. (svr4_default_sos): Adjust. (svr4_fetch_objfile_link_map): Adjust. (interp_text_sect_low, interp_text_sect_high, interp_plt_sect_low) (interp_plt_sect_high): Delete. (svr4_in_dynsym_resolve_code): Adjust. (enable_break): Adjust. (svr4_clear_solib): Revert bit that removed the svr4_info here, and reinstate clearing debug_base, debug_loader_offset_p, debug_loader_offset and debug_loader_name. (_initialize_svr4_solib): Register solib_svr4_pspace_data. Don't install an inferior_exit observer anymore. * printcmd.c (struct display) <pspace>: New field. (display_command): Set the display's sspace. (do_one_display): Match the display's sspace. (display_uses_solib_p): Ditto. * linux-fork.c (detach_fork): Moved to infrun.c. (_initialize_linux_fork): Moved "detach-on-fork" command to infrun.c. * infrun.c (detach_fork): Moved from linux-fork.c. (proceed_after_vfork_done): New. (handle_vfork_child_exec_or_exit): New. (follow_exec_mode_replace, follow_exec_mode_keep) (follow_exec_mode_names, follow_exec_mode_string) (show_follow_exec_mode_string): New. (follow_exec): New. Reinstate the mark_breakpoints_out call. Remove shared libraries before attaching new executable. If user wants to keep the inferior, keep it. (displaced_step_fixup): Adjust to pass an address space to the breakpoints module. (resume): Ditto. (clear_proceed_status): In all-stop mode, always clear the proceed status of all threads. (prepare_to_proceed): Adjust to pass an address space to the breakpoints module. (proceed): Ditto. (adjust_pc_after_break): Ditto. (handle_inferior_event): When handling a process exit, switch the program space to the inferior's that had exited. Call handle_vfork_child_exec_or_exit. Adjust to pass an address space to the breakpoints module. In non-stop mode, when following a fork and detach-fork is off, also resume the other branch. Handle TARGET_WAITKIND_VFORK_DONE. Set the program space in sals. (normal_stop): Prune inferiors. (_initialize_infrun): Install the new "follow-exec-mode" command. "detach-on-fork" moved here. * regcache.h (get_regcache_aspace): Declare. * regcache.c (struct regcache) <aspace>: New field. (regcache_xmalloc): Clear the aspace. (get_regcache_aspace): New. (regcache_cpy): Copy the aspace field. (regcache_cpy_no_passthrough): Ditto. (get_thread_regcache): Fetch the thread's address space from the target, and store it in the regcache. * infcall.c (call_function_by_hand): Set the sal's pspace. * arch-utils.c (default_has_shared_address_space): New. * arch-utils.h (default_has_shared_address_space): Declare. * gdbarch.sh (has_shared_address_space): New. * gdbarch.h, gdbarch.c: Regenerate. * linux-tdep.c: Include auxv.h, target.h, elf/common.h. (linux_has_shared_address_space): New. (_initialize_linux_tdep): Declare. * arm-tdep.c (arm_software_single_step): Pass the frame's address space to insert_single_step_breakpoint. * arm-linux-tdep.c (arm_linux_software_single_step): Pass the frame's pspace to breakpoint functions. * cris-tdep.c (crisv32_single_step_through_delay): Ditto. (cris_software_single_step): Ditto. * mips-tdep.c (deal_with_atomic_sequence): Add frame argument. Pass the frame's pspace to breakpoint functions. (mips_software_single_step): Adjust. (mips_single_step_through_delay): Adjust. * rs6000-aix-tdep.c (rs6000_software_single_step): Adjust. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust. * solib-irix.c (enable_break): Adjust to pass the current frame's address space to breakpoint functions. * sparc-tdep.c (sparc_software_single_step): Ditto. * spu-tdep.c (spu_software_single_step): Ditto. * alpha-tdep.c (alpha_software_single_step): Ditto. * record.c (record_wait): Adjust to pass an address space to the breakpoints module. * fork-child.c (fork_inferior): Set the new inferior's program and address spaces. * inf-ptrace.c (inf_ptrace_follow_fork): Copy the parent's program and address spaces. (inf_ptrace_attach): Set the inferior's program and address spaces. * linux-nat.c: Include "solib.h". (linux_child_follow_fork): Manage parent and child's program and address spaces. Clone the parent's program space if necessary. Don't wait for the vfork to be done here. Refuse to resume if following the vfork parent while leaving the child stopped. (resume_callback): Don't resume a vfork parent. (linux_nat_resume): Also check for pending events in the lp->waitstatus field. (linux_handle_extended_wait): Report TARGET_WAITKIND_VFORK_DONE events to the core. (stop_wait_callback): Don't wait for SIGSTOP on vfork parents. (cancel_breakpoint): Adjust. * linux-thread-db.c (thread_db_wait): Don't remove thread event breakpoints here. (thread_db_mourn_inferior): Don't mark breakpoints out here. Remove thread event breakpoints after mourning. * corelow.c: Include progspace.h. (core_open): Set the inferior's program and address spaces. * remote.c (remote_add_inferior): Set the new inferior's program and address spaces. (remote_start_remote): Update address spaces. (extended_remote_create_inferior_1): Don't init the thread list if we already debugging other inferiors. * darwin-nat.c (darwin_attach): Set the new inferior's program and address spaces. * gnu-nat.c (gnu_attach): Ditto. * go32-nat.c (go32_create_inferior): Ditto. * inf-ttrace.c (inf_ttrace_follow_fork, inf_ttrace_attach): Ditto. * monitor.c (monitor_open): Ditto. * nto-procfs.c (procfs_attach, procfs_create_inferior): Ditto. * procfs.c (do_attach): Ditto. * windows-nat.c (do_initial_windows_stuff): Ditto. * inflow.c (inferior_process_group) (terminal_init_inferior_with_pgrp, terminal_inferior, (terminal_ours_1, inflow_inferior_exit, copy_terminal_info) (child_terminal_info, new_tty_postfork, set_sigint_trap): Adjust to use per-inferior data instead of inferior->terminal_info. (inflow_inferior_data): New. (inflow_new_inferior): Delete. (inflow_inferior_data_cleanup): New. (get_inflow_inferior_data): New. * mi/mi-interp.c (mi_new_inferior): Rename to... (mi_inferior_appeared): ... this. (mi_interpreter_init): Adjust. * tui/tui-disasm.c: Include "progspace.h". (tui_set_disassem_content): Pass an address space to breakpoint_here_p. * NEWS: Mention multi-program debugging support. Mention new commands "add-inferior", "clone-inferior", "remove-inferior", "maint info program-spaces", and new option "set follow-exec-mode". 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * observer.texi (new_inferior): Rename to... (inferior_appeared): ... this. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/testsuite/ * gdb.base/foll-vfork.exp: Adjust to spell out "follow-fork". * gdb.base/foll-exec.exp: Adjust to expect a process id before "Executing new program". * gdb.base/foll-fork.exp: Adjust to spell out "follow-fork". * gdb.base/multi-forks.exp: Ditto. Adjust to the inferior being left listed after having been killed. * gdb.base/attach.exp: Adjust to spell out "symbol-file". * gdb.base/maint.exp: Adjust test. * Makefile.in (ALL_SUBDIRS): Add gdb.multi. * gdb.multi/Makefile.in: New. * gdb.multi/base.exp: New. * gdb.multi/goodbye.c: New. * gdb.multi/hangout.c: New. * gdb.multi/hello.c: New. * gdb.multi/bkpt-multi-exec.c: New. * gdb.multi/bkpt-multi-exec.exp: New. * gdb.multi/crashme.c: New. 2009-10-19 Pedro Alves <pedro@codesourcery.com> Stan Shebs <stan@codesourcery.com> gdb/doc/ * gdb.texinfo (Inferiors): Rename node to ... (Inferiors and Programs): ... this. Mention running multiple programs in the same debug session. <info inferiors>: Mention the new 'Executable' column if "info inferiors". Update examples. Document the "add-inferior", "clone-inferior", "remove-inferior" and "maint info program-spaces" commands. (Process): Rename node to... (Forks): ... this. Document "set|show follow-exec-mode".
2009-10-19 11:51:43 +02:00
* New options
set follow-exec-mode new|same
show follow-exec-mode
Control whether GDB reuses the same inferior across an exec call or
creates a new one. This is useful to be able to restart the old
executable after the inferior having done an exec call.
set default-collect EXPR, ...
show default-collect
Define a list of expressions to be collected at each tracepoint.
This is a useful way to ensure essential items are not overlooked,
such as registers or a critical global variable.
2010-01-06 21:31:28 +01:00
set disconnected-tracing
show disconnected-tracing
If set to 1, the target is instructed to continue tracing if it
loses its connection to GDB. If 0, the target is to stop tracing
upon disconnection.
set circular-trace-buffer
show circular-trace-buffer
If set to on, the target is instructed to use a circular trace buffer
and discard the oldest trace frames instead of stopping the trace due
to a full trace buffer. If set to off, the trace stops when the buffer
fills up. Some targets may not support this.
set script-extension off|soft|strict
show script-extension
If set to "off", the debugger does not perform any script language
recognition, and all sourced files are assumed to be GDB scripts.
If set to "soft" (the default), files are sourced according to
filename extension, falling back to GDB scripts if the first
evaluation failed.
If set to "strict", files are sourced according to filename extension.
set ada trust-PAD-over-XVS on|off
show ada trust-PAD-over-XVS
If off, activate a workaround against a bug in the debugging information
generated by the compiler for PAD types (see gcc/exp_dbug.ads in
the GCC sources for more information about the GNAT encoding and
PAD types in particular). It is always safe to set this option to
off, but this introduces a slight performance penalty. The default
is on.
* Python API Improvements
** GDB provides the new class gdb.LazyString. This is useful in
some pretty-printing cases. The new method gdb.Value.lazy_string
provides a simple way to create objects of this type.
** The fields returned by gdb.Type.fields now have an
`is_base_class' attribute.
** The new method gdb.Type.range returns the range of an array type.
** The new method gdb.parse_and_eval can be used to parse and
evaluate an expression.
* New remote packets
QTDV
Define a trace state variable.
qTV
Get the current value of a trace state variable.
2010-01-06 21:31:28 +01:00
QTDisconnected
Set desired tracing behavior upon disconnection.
QTBuffer:circular
Set the trace buffer to be linear or circular.
2010-01-06 21:31:28 +01:00
qTfP, qTsP
Get data about the tracepoints currently in use.
* Bug fixes
Process record now works correctly with hardware watchpoints.
Multiple bug fixes have been made to the mips-irix port, making it
much more reliable. In particular:
- Debugging threaded applications is now possible again. Previously,
GDB would hang while starting the program, or while waiting for
the program to stop at a breakpoint.
- Attaching to a running process no longer hangs.
- An error occurring while loading a core file has been fixed.
- Changing the value of the PC register now works again. This fixes
problems observed when using the "jump" command, or when calling
a function from GDB, or even when assigning a new value to $pc.
- With the "finish" and "return" commands, the return value for functions
returning a small array is now correctly printed.
- It is now possible to break on shared library code which gets executed
during a shared library init phase (code executed while executing
their .init section). Previously, the breakpoint would have no effect.
- GDB is now able to backtrace through the signal handler for
non-threaded programs.
2010-01-14 22:24:05 +01:00
PIE (Position Independent Executable) programs debugging is now supported.
This includes debugging execution of PIC (Position Independent Code) shared
libraries although for that, it should be possible to run such libraries as an
executable program.
*** Changes in GDB 7.0
* GDB now has an interface for JIT compilation. Applications that
dynamically generate code can create symbol files in memory and register
them with GDB. For users, the feature should work transparently, and
for JIT developers, the interface is documented in the GDB manual in the
"JIT Compilation Interface" chapter.
* Tracepoints may now be conditional. The syntax is as for
breakpoints; either an "if" clause appended to the "trace" command,
or the "condition" command is available. GDB sends the condition to
the target for evaluation using the same bytecode format as is used
for tracepoint actions.
* The disassemble command now supports: an optional /r modifier, print the
raw instructions in hex as well as in symbolic form, and an optional /m
modifier to print mixed source+assembly.
* Process record and replay
In a architecture environment that supports ``process record and
replay'', ``process record and replay'' target can record a log of
the process execution, and replay it with both forward and reverse
execute commands.
* Reverse debugging: GDB now has new commands reverse-continue, reverse-
step, reverse-next, reverse-finish, reverse-stepi, reverse-nexti, and
set execution-direction {forward|reverse}, for targets that support
reverse execution.
* GDB now supports hardware watchpoints on MIPS/Linux systems. This
feature is available with a native GDB running on kernel version
2.6.28 or later.
gdb: 2009-03-19 Tom Tromey <tromey@redhat.com> Julian Brown <julian@codesourcery.com> PR i18n/7220, PR i18n/7821, PR exp/8815, PR exp/9103, PR i18n/9401, PR exp/9613: * NEWS: Update * value.h (value_typed_string): Declare. (val_print_string): Update. * valprint.h (print_char_chars): Update. * valprint.c (print_char_chars): Add type argument. Update. (val_print_string): Likewise. * valops.c (value_typed_string): New function. * utils.c (host_char_to_target): New function. (parse_escape): Use host_char_to_target, host_hex_value. Update. Remove '^' case. (no_control_char_error): Remove. * typeprint.c (print_type_scalar): Update. * scm-valprint.c (scm_scmval_print): Update. * scm-lang.h (scm_printchar, scm_printstr): Update. * scm-lang.c (scm_printchar): Add type argument. (scm_printstr): Likewise. * printcmd.c (print_formatted): Update. (print_scalar_formatted): Update. (printf_command) <wide_string_arg, wide_char_arg>: New constants. Handle '%lc' and '%ls'. * parser-defs.h (struct typed_stoken): New type. (struct stoken_vector): Likewise. (write_exp_string_vector): Declare. * parse.c (write_exp_string_vector): New function. * p-valprint.c (pascal_val_print): Update. * p-lang.h (is_pascal_string_type, pascal_printchar, pascal_printstr): Update. * p-lang.c (is_pascal_string_type): Remove 'char_size' argument. Add 'char_type' argument. (pascal_emit_char): Add type argument. (pascal_printchar): Likewise. (pascal_printstr): Likewise. * objc-lang.c (objc_emit_char): Add type argument. (objc_printchar): Likewise. (objc_printstr): Likewise. * macroexp.c (get_character_constant): Handle unicode characters. Use c_parse_escape. (get_string_literal): Handle unicode strings. Use c_parse_escape. * m2-valprint.c (print_unpacked_pointer): Update. (m2_print_array_contents): Update. (m2_val_print): Update. * m2-lang.c (m2_emit_char): Add type argument. (m2_printchar): Likewise. (m2_printstr): Likewise. * language.h (struct language_defn) <la_printchar>: Add type argument. <la_printstr, la_emitchar>: Likewise. (LA_PRINT_CHAR): Likewise. (LA_PRINT_STRING): Likewise. (LA_EMIT_CHAR): Likewise. * language.c (unk_lang_emit_char): Add type argument. (unk_lang_printchar): Likewise. (unk_lang_printstr): Likewise. * jv-valprint.c (java_val_print): Update. * jv-lang.c (java_emit_char): Add type argument. * f-valprint.c (f_val_print): Update. * f-lang.c (f_emit_char): Add type argument. (f_printchar): Likewise. (f_printstr): Likewise. * expprint.c (print_subexp_standard): Update. * charset.h (target_wide_charset): Declare. (c_target_char_has_backslash_escape, c_parse_backslash, host_char_print_literally, host_char_to_target, target_char_to_host, target_char_to_control_char): Remove. (enum transliterations): New type. (convert_between_encodings): Declare. (HOST_ESCAPE_CHAR): New define. (host_letter_to_control_character, host_hex_value): Declare. (enum wchar_iterate_result): New enum. (struct wchar_iterator): Declare. (make_wchar_iterator, make_cleanup_wchar_iterator, wchar_iterator, wchar_push_back): Declare. * charset-list.h: New file. * c-valprint.c (textual_name): New function. (textual_element_type): Handle wide character types. (c_val_print): Pass original type to textual_element_type. Handle wide character types. (c_value_print): Use textual_element_type. Pass original type of value to val_print. * c-lang.h (enum c_string_type): New type. (c_printchar, c_printstr): Update. * c-lang.c (classify_type): New function. (print_wchar): Likewise. (c_emit_char): Add type argument. Handle wide characters. (c_printchar): Likewise. (c_printstr): Add type argument. Handle wide and multibyte character sets. (convert_ucn): New function. (emit_numeric_character): Likewise. (convert_octal): Likewise. (convert_hex): Likewise. (ADVANCE): New macro. (convert_escape): New function. (parse_one_string): Likewise. (evaluate_subexp_c): Likewise. (exp_descriptor_c): New global. (c_language_defn): Use exp_descriptor_c. (cplus_language_defn): Likewise. (asm_language_defn): Likewise. (minimal_language_defn): Likewise. (charset_for_string_type): New function. * c-exp.y (%union): Add 'svec' and 'tsval'. (CHAR): New token. (exp): Add CHAR production. (string_exp): Rewrite. (exp) <string_exp>: Rewrite. (tempbuf): Now global. (tempbuf_init): New global. (parse_string_or_char): New function. (yylex) <tempbuf>: Now global. <tokptr, tempbufindex, tempbufsize, token_string, class_prefix>: Remove. Handle 'u', 'U', and 'L' prefixes. Call parse_string_or_char. (c_parse_escape): New function. * auxv.c (fprint_target_auxv): Update. * ada-valprint.c (ada_emit_char): Add type argument. (ada_printchar): Likewise. (ada_print_scalar): Update. (printstr): Add type argument. Update calls to ada_emit_char. (ada_printstr): Add type argument. (ada_val_print_array): Update. (ada_val_print_1): Likewise. * ada-lang.c (emit_char): Add type argument. * ada-lang.h (ada_emit_char, ada_printchar, ada_printstr): Add type arguments. * gdb_locale.h: Include langinfo.h. * charset.c (_initialize_charset): Set default host charset from the locale. Don't register charsets. Add target-wide-charset commands. Call find_charset_names. (struct charset, struct translation): Remove. (GDB_DEFAULT_HOST_CHARSET): Remove. (GDB_DEFAULT_TARGET_WIDE_CHARSET): New define. (target_wide_charset_name): New global. (show_host_charset_name): Handle "auto". (show_target_wide_charset_name): New function. (host_charset_enum, target_charset_enum): Remove. (charset_enum): New global. (all_charsets, register_charset, lookup_charset, all_translations, register_translation, lookup_translation): Remove. (simple_charset, ascii_print_literally, ascii_to_control): Remove. (iso_8859_print_literally, iso_8859_to_control, iso_8859_family_charset): Remove. (ebcdic_print_literally, ebcdic_to_control, ebcdic_family_charset): Remove. (struct cached_iconv, check_iconv_cache, cached_iconv_convert, register_iconv_charsets): Remove. (target_wide_charset_be_name, target_wide_charset_le_name): New globals. (identity_either_char_to_other): Remove. (set_be_le_names, validate): New functions. (backslashable, backslashed, represented): Remove. (default_c_target_char_has_backslash_escape): Remove. (default_c_parse_backslash, iconv_convert): Remove. (ascii_to_iso_8859_1_table, ascii_to_ebcdic_us_table, ascii_to_ibm1047_table, iso_8859_1_to_ascii_table, iso_8859_1_to_ebcdic_us_table, iso_8859_1_to_ibm1047_table, ebcdic_us_to_ascii_table, ebcdic_us_to_iso_8859_1_table, ebcdic_us_to_ibm1047_table, ibm1047_to_ascii_table, ibm1047_to_iso_8859_1_table, ibm1047_to_ebcdic_us_table): Remove. (table_convert_char, table_translation, simple_table_translation): Remove. (current_host_charset, current_target_charset, c_target_char_has_backslash_escape_func, c_target_char_has_backslash_escape_baton): Remove. (c_parse_backslash_func, c_parse_backslash_baton): Remove. (host_char_to_target_func, host_char_to_target_baton): Remove. (target_char_to_host_func, target_char_to_host_baton): Remove. (cached_iconv_host_to_target, cached_iconv_target_to_host): Remove. (lookup_charset_or_error, check_valid_host_charset): Remove. (set_host_and_target_charsets): Remove. (set_host_charset, set_target_charset): Remove. (set_host_charset_sfunc, set_target_charset_sfunc): Rewrite. (set_target_wide_charset_sfunc): New function. (show_charset): Print target wide character set. (host_charset, target_charset): Rewrite. (target_wide_charset): New function. (c_target_char_has_backslash_escape): Remove. (c_parse_backslash): Remove. (host_letter_to_control_character): New function. (host_char_print_literally): Remove. (host_hex_value): New function. (target_char_to_control_char): Remove. (cleanup_iconv): New function. (convert_between_encodings): New function. (target_char_to_host): Remove. (struct wchar_iterator): Define. (make_wchar_iterator, make_cleanup_wchar_iterator, wchar_iterator, wchar_push_back): New functions. (do_cleanup_iterator): New function. (char_ptr): New typedef. (charsets): New global. (add_one, find_charset_names): New functions. (default_charset_names): New global. (auto_host_charset_name): Likewise. * aclocal.m4, config.in, configure: Rebuild. * configure.ac: Call AM_LANGINFO_CODESET. (GDB_DEFAULT_HOST_CHARSET): Default to UTF-8. (AM_ICONV): Invoke earlier. * acinclude.m4: Include codeset.m4. Subst LIBICONV_INCLUDE and LIBICONV_LIBDIR. Check for libiconv in build tree. * Makefile.in (LIBICONV_LIBDIR, LIBICONV_INCLUDE): New macros. (INTERNAL_CFLAGS_BASE): Add LIBICONV_INCLUDE. (INTERNAL_LDFLAGS): Add LIBICONV_LIBDIR. * gdb_obstack.h (obstack_grow_wstr): New define. * gdb_wchar.h: New file. * defs.h: Include it. gdb/testsuite: * gdb.base/store.exp: Update for change to escape output. * gdb.base/callfuncs.exp (fetch_all_registers): Update for change to escape output. * gdb.base/pointers.exp: Update for change to escape output. * gdb.base/long_long.exp (gdb_test_long_long): Update for change to escape output. * gdb.base/constvars.exp (do_constvar_tests): Update for change to escape output. * gdb.base/call-rt-st.exp (print_struct_call): Update for change to escape output. * gdb.cp/ref-types.exp (gdb_start_again): Update for change to escape output. * gdb.base/setvar.exp: Update for change to escape output. * lib/gdb.exp (default_gdb_start): Set LC_CTYPE to C. * gdb.base/printcmds.exp (test_print_all_chars): Update for change to escape output. (test_print_string_constants): Likewise. * gdb.base/charset.exp (valid_host_charset): Check size of wchar_t. Handle UCS-2 and UCS-4. Add tests for wide and unicode cases. Handle "auto"-related output. * gdb.base/charset.c (char16_t, char32_t): New typedefs. (uvar, Uvar): New globals. gdb/doc: * gdb.texinfo (Character Sets): Remove obsolete text. Document set target-wide-charset. (Requirements): Mention iconv.
2009-03-21 00:04:40 +01:00
* GDB now has support for multi-byte and wide character sets on the
target. Strings whose character type is wchar_t, char16_t, or
char32_t are now correctly printed. GDB supports wide- and unicode-
literals in C, that is, L'x', L"string", u'x', u"string", U'x', and
U"string" syntax. And, GDB allows the "%ls" and "%lc" formats in
`printf'. This feature requires iconv to work properly; if your
system does not have a working iconv, GDB can use GNU libiconv. See
the installation instructions for more information.
* GDB now supports automatic retrieval of shared library files from
remote targets. To use this feature, specify a system root that begins
with the `remote:' prefix, either via the `set sysroot' command or via
the `--with-sysroot' configure-time option.
* "info sharedlibrary" now takes an optional regex of libraries to show,
and it now reports if a shared library has no debugging information.
* Commands `set debug-file-directory', `set solib-search-path' and `set args'
now complete on file names.
* When completing in expressions, gdb will attempt to limit
completions to allowable structure or union fields, where appropriate.
For instance, consider:
# struct example { int f1; double f2; };
# struct example variable;
(gdb) p variable.
If the user types TAB at the end of this command line, the available
completions will be "f1" and "f2".
gdb/ * NEWS: Document inlined function support. * Makefile.in (SFILES): Add inline-frame.c. (COMMON_OBS): Add inline-frame.o. * block.c (contained_in): Rewrite to use lexical nesting. (block_linkage_function): Skip inlined function blocks. (block_inlined_p): New. * block.h (struct block): Update comment. (block_inlined_p): New prototype. * blockframe.c (get_frame_block): Handle inlined functions. (get_frame_function): Do not use block_linkage_function. (block_innermost_frame): Use get_frame_block and contained_in. * breakpoint.c (watchpoint_check): Remove extra reinit_frame_cache. Skip over inlined functions. Simplify epilogue check. (bpstat_check_breakpoint_conditions): Use get_stack_frame_id. Update comments. (set_momentary_breakpoint): Only accept non-inlined frames. (watch_command_1): Use frame_unwind_caller_pc and frame_unwind_caller_id instead of get_prev_frame. (until_break_command): Likewise. Use get_stack_frame_id. * buildsym.c (end_symtab): Set SYMBOL_SYMTAB for block functions. * dwarf2loc.c (dwarf_expr_frame_base): Use block_linkage_function. * dwarf2read.c (process_die): Handle DW_TAG_inlined_subroutine. (read_func_scope, new_symbol): Likewise. Handle arguments specially for inlined functions without call site information. (inherit_abstract_dies): Allow tag mismatch for inlined subroutines. (die_specification): Treat DW_AT_abstract_origin as a specification. (read_type_die): Handle DW_TAG_inlined_subroutine. * frame-unwind.c (frame_unwind_init): Add inline_frame_unwind. * frame.c (fprint_frame_id): Print inline depth. (fprint_frame_type): Handle INLINE_FRAME and SENTINEL_FRAME. (skip_inlined_frames, get_stack_frame_id): New. (frame_unwind_caller_id): Use skip_inlined_frames. (frame_id_inlined_p): New. (frame_id_eq): Make the logic match the comments. Add inline_depth check. (frame_id_inner): Handle inlined functions. (frame_unwind_pc): New function, copied from frame_unwind_caller_pc. (frame_unwind_caller_pc): Use skip_inlined_frames and frame_unwind_pc. (get_prev_frame_1): Check for inline frames. Split out frame allocation to get_prev_frame_raw. (get_prev_frame_raw): New function. (get_prev_frame): Handle inline frames. (get_frame_pc): Use frame_unwind_pc. (get_frame_address_in_block): Skip inlined frames on both sides. (pc_notcurrent): Delete. (find_frame_sal): Rewrite to handle inline call sites. Use get_frame_address_in_block. (deprecated_update_frame_pc_hack): Make static. * frame.h: Update comments. (struct frame_id): Add inline_depth. (enum frame_type): Add INLINE_FRAME. (frame_id_inlined_p, get_stack_frame_id): New prototypes. * gdbthread.h (struct thread_info): Add step_stack_frame_id field. * infcmd.c (set_step_frame): New function. (step_once): Use set_step_frame. Handle inlined functions. (until_next_command): Use set_step_frame. (finish_backward), finish_forward): Use get_stack_frame_id. (finish_command): Support inlined functions. * inferior.h (set_step_info): New prototype. * infrun.c (RESUME_ALL): Use minus_one_ptid. (clear_proceed_status): Clear step_stack_frame_id. (init_wait_for_inferior): Call clear_inline_frame_state. (init_execution_control_state): Make static. (set_step_info): New function. (init_thread_stepping_state): Do not set the symtab or line here. (stepped_in_from): New function. (handle_inferior_event): Handle inlined functions. Use set_step_info. (insert_step_resume_breakpoint_at_frame): Use get_stack_frame_id. (struct inferior_status): Add step_stack_frame_id. (save_inferior_status, restore_inferior_status): Save and restore step_stack_frame_id. * inline-frame.c, inline-frame.h: New files. * minsyms.c (prim_record_minimal_symbol_and_info): Use XCALLOC. * regcache.c (regcache_write_pc): Call reinit_frame_cache. * s390-tdep.c (s390_prologue_frame_unwind_cache): Handle INLINE_FRAME. * stack.c (frame_show_address): New. (print_frame_info, print_frame): Use it. (find_frame_funname): Use get_frame_function. Handle inlined blocks. (frame_info): Mark inlined functions. (backtrace_command_1): Use get_current_user_frame. (print_frame_local_vars, print_frame_label_vars): Update comments. (return_command): Refuse inlined functions. * symtab.c (lookup_symbol_aux_local): Stop at inlined function boundaries. (find_function_start_sal): Avoid inlined functions. (completion_list_add_fields): New function. (default_make_symbol_completion_list): Use it. Use block_static_block and block_global_block. Check for inlined functions. (skip_prologue_using_sal): Avoid line number comparison across inlining. * symtab.h (struct symbol): Add is_inlined. (SYMBOL_INLINED): New. * target.c (target_resume): Call clear_inline_frame_state. * valops.c (value_of_variable): Check block_inlined_p. gdb/doc/ * gdb.texinfo (Debugging Optimized Code): New chapter. (Compiling for Debugging): Reference it. Move some text to the new section. gdb/testsuite/ * gdb.base/break.exp: Add an XFAIL for gcc/36748. * gdb.cp/annota2.exp: Accept frames-invalid in more places. * gdb.opt/Makefile.in (EXECUTABLES): Update. * gdb.opt/clobbered-registers-O2.exp: Update to GPL v3. * gdb.opt/inline-bt.c, gdb.opt/inline-bt.exp, gdb.opt/inline-cmds.c, gdb.opt/inline-cmds.exp, gdb.opt/inline-locals.c, gdb.opt/inline-locals.exp, gdb.opt/inline-markers.c: New files. * lib/gdb.exp (skip_inline_frame_tests): New function. (skip_inline_var_tests): New function.
2009-06-28 02:20:24 +02:00
* Inlined functions are now supported. They show up in backtraces, and
the "step", "next", and "finish" commands handle them automatically.
* GDB now supports the token-splicing (##) and stringification (#)
operators when expanding macros. It also supports variable-arity
macros.
* GDB now supports inspecting extra signal information, exported by
* NEWS: Mention ARM VFP support. * target-descriptions.c (tdesc_register_type): Make public. (tdesc_unnumbered_register): New function. (tdesc_register_reggroup_p): Allow missing pseudo_register_reggroup_p. * target-descriptions.h (tdesc_register_type): Declare. (tdesc_unnumbered_register): Declare. * arm-tdep.c (arm_neon_quad_read, arm_neon_quad_write): New functions. (arm_push_dummy_call): Use arm_neon_quad_write. (arm_neon_double_type, arm_neon_quad_type): New functions. (arm_register_type): Handle VFP and NEON registers. Override the types of double-precision registers for NEON. Disable FPA registers if they are not present. (arm_dwarf_reg_to_regnum): Add current VFP and NEON register numbers. (arm_return_value): Use arm_neon_quad_write and arm_neon_quad_read. (arm_register_name): Handle VFP single and NEON quad registers. (arm_pseudo_read, arm_pseudo_write): New functions. (arm_gdbarch_init): Check for VFP and NEON in the target description. Assign numbers to double-precision registers. Register VFP and NEON pseudo registers. Remove a shadowed "i" variable. * arm-tdep.h (enum gdb_regnum): Add ARM_D0_REGNUM and ARM_D31_REGNUM. (struct gdbarch_tdep): Add have_neon_pseudos, have_neon, have_vfp_registers, have_vfp_pseudos, neon_double_type, and neon_quad_type. * features/Makefile: Make expedite settings only architecture specific. (WHICH): Add new ARM descriptions. * features/arm-with-neon.xml, features/arm-with-vfpv2.c, features/arm-with-vfpv3.c, features/arm-vfpv2.xml, features/arm-vfpv3.xml, features/arm-with-vfpv2.xml, features/arm-with-vfpv3.xml, features/arm-with-neon.c: New files. * regformats/arm-with-neon.dat, regformats/arm-with-vfpv2.dat, regformats/arm-with-vfpv3.dat: Generate. doc/ * gdb.texinfo (ARM Features): Document org.gnu.gdb.arm.vfp and org.gnu.gdb.arm.neon. gdbserver/ * linux-low.c (linux_write_memory): Update debugging output. * Makefile.in (clean): Add new descriptions. (arm-with-vfpv2.o, arm-with-vfpv2.c, arm-with-vfpv3.o) (arm-with-vfpv3.c, arm-with-neon.o, arm-with-neon.c): New rules. * configure.srv: Add new files for arm*-*-linux*. * linux-arm-low.c: Add new declarations. (PTRACE_GETVFPREGS, PTRACE_SETVFPREGS): Define if undefined. (arm_hwcap, HWCAP_VFP, HWCAP_IWMMXT, HWCAP_NEON, HWCAP_VFPv3) (HWCAP_VFPv3D16): New. (arm_fill_wmmxregset, arm_store_wmmxregset): Check HWCAP_IWMMXT instead of __IWMMXT__. (arm_fill_vfpregset, arm_store_vfpregset, arm_get_hwcap) (arm_arch_setup): New. (target_regsets): Remove #ifdef. Add VFP regset. (the_low_target): Use arm_arch_setup. testsuite/ * gdb.base/float.exp: Handle VFP registers.
2009-07-28 20:26:51 +02:00
the new $_siginfo convenience variable. The feature is currently
implemented on linux ARM, i386 and amd64.
* GDB can now display the VFP floating point registers and NEON vector
registers on ARM targets. Both ARM GNU/Linux native GDB and gdbserver
can provide these registers (requires Linux 2.6.30 or later). Remote
and simulator targets may also provide them.
* New remote packets
qSearch:memory:
Search memory for a sequence of bytes.
gdb/doc/ 2008-08-12 Sandra Loosemore <sandra@codesourcery.com> * gdb.texinfo (Remote Configuration): Document set remote noack-packet. (Remote Protocol): Add Packet Acknowledgment to menu. (Overview): Mention +/- can be disabled, and point to new section where this is discussed in detail. (General Query Packets): Document QStartNoAckMode packet, and corresponding qSupported reply. (Packet Acknowledgment): New section. gdb/ 2008-08-12 Pedro Alves <pedro@codesourcery.com> Add no-ack mode to the remote protocol --- optionally stop ACKing packets and responses when we have a reliable communication medium. Based on Apple's GDB, by Jason Molenda <jmolenda@apple.com> * remote.c (struct remote_state): Add noack_mode field. (PACKET_QStartNoAckMode): New. (remote_start_remote): Don't any outstanding packet here. (remote_open_1): Clear noack_mode. Ack any outstanding packet here. Activate noack mode if requested. (remote_protocol_features): Add QStartNoAckMode. (remote_open_1): (putpkt_binary): Don't send ack in noack mode. (read_frame): Don't recompute the checksum in noack mode. (getpkt_sane): Skip sending ack if in noack mode. (_initialize_remote): Add set/show remote noack mode. * NEWS: Note the new features. gdb/gdbserver/ 2008-08-12 Pedro Alves <pedro@codesourcery.com> * remote-utils.c (noack_mode, transport_is_reliable): New globals. (remote_open): Set or clear transport_is_reliable. (putpkt_binary): Don't expect acks in noack mode. (getpkt): Don't send ack/nac in noack mode. * server.c (handle_general_set): Handle QStartNoAckMode. (handle_query): If connected by tcp pass QStartNoAckMode+ in qSupported. (main): Reset noack_mode on every connection. * server.h (noack_mode): Declare.
2008-08-12 17:18:31 +02:00
QStartNoAckMode
Turn off `+'/`-' protocol acknowledgments to permit more efficient
operation over reliable transport links. Use of this packet is
controlled by the `set remote noack-packet' command.
vKill
Kill the process with the specified process ID. Use this in preference
to `k' when multiprocess protocol extensions are supported.
qXfer:osdata:read
Obtains additional operating system information
qXfer:siginfo:read
qXfer:siginfo:write
Read or write additional signal information.
* Removed remote protocol undocumented extension
An undocumented extension to the remote protocol's `S' stop reply
packet that permited the stub to pass a process id was removed.
Remote servers should use the `T' stop reply packet instead.
doc/ChangeLog: -------------- * gdb.texinfo (Set SH Calling convention): New @item. (Show SH Calling convention): Ditto. ChangeLog: ---------- * NEWS: Add information on calling convention and new SH CLI options. * sh-tdep.c (sh_cc_gcc): New static string. (sh_cc_renesas): Ditto. (sh_cc_enum): New static string array. (sh_active_calling_convention): New static string pointer denoting active user chosen ABI. (sh_is_renesas_calling_convention): New function to return function specific ABI, or user choice if necessary. (sh_use_struct_convention): Rename first argument and turn around its meaning. Check for renesas ABI and return accordingly. (sh_use_struct_convention_nofpu): New function. (sh_next_flt_argreg): Get function type as third parameter. Check for renesas ABI and choose floating registers accordingly. (sh_push_dummy_call_fpu): Check for ABI and choose argument slot and struct return slot accordingly. (sh_push_dummy_call_nofpu): Ditto. (sh_return_value_nofpu): Call sh_use_struct_convention_nofpu from here. Evaluate ABI and give to sh_use_struct_convention_nofpu. (sh_return_value_fpu): Evaluate ABI and give to sh_use_struct_convention. (show_sh_command): New function. (set_sh_command): Ditto. (_initialize_sh_tdep): Initialize `set/show sh calling-convention CLI command. * gdbarch.sh (return_value): Add func_type argument. * gdbarch.c: Regenerate. * gdbarch.h: Ditto. * eval.c (evaluate_subexp_standard): Rename local variable value_type to val_type so as not to collide with value_type function. Call using_struct_return with additional function type argument. * infcall.c (call_function_by_hand): Call using_struct_return and gdbarch_return_value with additional function type argument. * infcmd.c (print_return_value): Take addition func_type argument. Call gdbarch_return_value with additional function type argument. (finish_command_continuation): Call print_return_value with additional function type argument. (finish_command): Ditto. * sparc-tdep.c (sparc32_push_dummy_code): Call using_struct_return with additional function type argument. * stack.c (return_command): Call using_struct_return and gdbarch_return_value with additional function type argument. * value.c (using_struct_return): Take additional function type argument. * value.h (using_struct_return): Accommodate declaration. * alpha-tdep.c (alpha_return_value): Add func_type argument. * amd64-tdep.c (amd64_return_value): Ditto. * arm-tdep.c (arm_return_value): Ditto. * avr-tdep.c (avr_return_value): Ditto. * cris-tdep.c (cris_return_value): Ditto. * frv-tdep.c (frv_return_value): Ditto. * h8300-tdep.c (h8300_return_value): Ditto. (h8300h_return_value): Ditto. * hppa-tdep.c (hppa32_return_value): Ditto. (hppa64_return_value): Ditto. * i386-tdep.c (i386_return_value): Ditto. * ia64-tdep.c (ia64_return_value): Ditto. * iq2000-tdep.c (iq2000_return_value): Ditto. * m32c-tdep.c (m32c_return_value): Ditto. * m32r-tdep.c (m32r_return_value): Ditto. * m68hc11-tdep.c (m68hc11_return_value): Ditto. * m68k-tdep.c (m68k_return_value): Ditto. (m68k_svr4_return_value): Ditto. * m88k-tdep.c (m88k_return_value): Ditto. * mep-tdep.c (mep_return_value): Ditto. * mips-tdep.c (mips_eabi_return_value): Ditto. (mips_n32n64_return_value): Ditto. (mips_o32_return_value): Ditto. (mips_o64_return_value): Ditto. * mn10300-tdep.c (mn10300_return_value): Ditto. * mt-tdep.c (mt_return_value): Ditto. * ppc-linux-tdep.c (ppc_linux_return_value): Ditto. * ppc-sysv-tdep.c (ppc_sysv_abi_return_value): Ditto. (ppc_sysv_abi_broken_return_value): Ditto. (ppc64_sysv_abi_return_value): Ditto. * ppc-tdep.h (ppc_sysv_abi_return_value): Ditto. (ppc_sysv_abi_broken_return_value): Ditto. (ppc64_sysv_abi_return_value): Ditto. * ppcnbsd-tdep.c (ppcnbsd_return_value): Ditto. * rs6000-tdep.c (rs6000_return_value): Ditto. * s390-tdep.c (s390_return_value): Ditto. * score-tdep.c (score_return_value): Ditto. * sh-tdep.c (sh_return_value_nofpu): Ditto. (sh_return_value_fpu): Ditto. * sh64-tdep.c (sh64_return_value): Ditto. * sparc-tdep.c (sparc32_return_value): Ditto. * sparc64-tdep.c (sparc64_return_value): Ditto. * spu-tdep.c (spu_return_value): Ditto. * v850-tdep.c (v850_return_value): Ditto. * vax-tdep.c (vax_return_value): Ditto. * xstormy16-tdep.c (xstormy16_return_value): Ditto. * xtensa-tdep.c (xtensa_return_value): Ditto. * gdbtypes.h (struct type): Add calling_convention member. * dwarf2read.c (read_subroutine_type): Add calling convention read from DW_AT_calling_convention attribute to function type.
2008-04-22 13:03:42 +02:00
* GDB now supports multiple function calling conventions according to the
DWARF-2 DW_AT_calling_convention function attribute.
doc/ChangeLog: -------------- * gdb.texinfo (Set SH Calling convention): New @item. (Show SH Calling convention): Ditto. ChangeLog: ---------- * NEWS: Add information on calling convention and new SH CLI options. * sh-tdep.c (sh_cc_gcc): New static string. (sh_cc_renesas): Ditto. (sh_cc_enum): New static string array. (sh_active_calling_convention): New static string pointer denoting active user chosen ABI. (sh_is_renesas_calling_convention): New function to return function specific ABI, or user choice if necessary. (sh_use_struct_convention): Rename first argument and turn around its meaning. Check for renesas ABI and return accordingly. (sh_use_struct_convention_nofpu): New function. (sh_next_flt_argreg): Get function type as third parameter. Check for renesas ABI and choose floating registers accordingly. (sh_push_dummy_call_fpu): Check for ABI and choose argument slot and struct return slot accordingly. (sh_push_dummy_call_nofpu): Ditto. (sh_return_value_nofpu): Call sh_use_struct_convention_nofpu from here. Evaluate ABI and give to sh_use_struct_convention_nofpu. (sh_return_value_fpu): Evaluate ABI and give to sh_use_struct_convention. (show_sh_command): New function. (set_sh_command): Ditto. (_initialize_sh_tdep): Initialize `set/show sh calling-convention CLI command. * gdbarch.sh (return_value): Add func_type argument. * gdbarch.c: Regenerate. * gdbarch.h: Ditto. * eval.c (evaluate_subexp_standard): Rename local variable value_type to val_type so as not to collide with value_type function. Call using_struct_return with additional function type argument. * infcall.c (call_function_by_hand): Call using_struct_return and gdbarch_return_value with additional function type argument. * infcmd.c (print_return_value): Take addition func_type argument. Call gdbarch_return_value with additional function type argument. (finish_command_continuation): Call print_return_value with additional function type argument. (finish_command): Ditto. * sparc-tdep.c (sparc32_push_dummy_code): Call using_struct_return with additional function type argument. * stack.c (return_command): Call using_struct_return and gdbarch_return_value with additional function type argument. * value.c (using_struct_return): Take additional function type argument. * value.h (using_struct_return): Accommodate declaration. * alpha-tdep.c (alpha_return_value): Add func_type argument. * amd64-tdep.c (amd64_return_value): Ditto. * arm-tdep.c (arm_return_value): Ditto. * avr-tdep.c (avr_return_value): Ditto. * cris-tdep.c (cris_return_value): Ditto. * frv-tdep.c (frv_return_value): Ditto. * h8300-tdep.c (h8300_return_value): Ditto. (h8300h_return_value): Ditto. * hppa-tdep.c (hppa32_return_value): Ditto. (hppa64_return_value): Ditto. * i386-tdep.c (i386_return_value): Ditto. * ia64-tdep.c (ia64_return_value): Ditto. * iq2000-tdep.c (iq2000_return_value): Ditto. * m32c-tdep.c (m32c_return_value): Ditto. * m32r-tdep.c (m32r_return_value): Ditto. * m68hc11-tdep.c (m68hc11_return_value): Ditto. * m68k-tdep.c (m68k_return_value): Ditto. (m68k_svr4_return_value): Ditto. * m88k-tdep.c (m88k_return_value): Ditto. * mep-tdep.c (mep_return_value): Ditto. * mips-tdep.c (mips_eabi_return_value): Ditto. (mips_n32n64_return_value): Ditto. (mips_o32_return_value): Ditto. (mips_o64_return_value): Ditto. * mn10300-tdep.c (mn10300_return_value): Ditto. * mt-tdep.c (mt_return_value): Ditto. * ppc-linux-tdep.c (ppc_linux_return_value): Ditto. * ppc-sysv-tdep.c (ppc_sysv_abi_return_value): Ditto. (ppc_sysv_abi_broken_return_value): Ditto. (ppc64_sysv_abi_return_value): Ditto. * ppc-tdep.h (ppc_sysv_abi_return_value): Ditto. (ppc_sysv_abi_broken_return_value): Ditto. (ppc64_sysv_abi_return_value): Ditto. * ppcnbsd-tdep.c (ppcnbsd_return_value): Ditto. * rs6000-tdep.c (rs6000_return_value): Ditto. * s390-tdep.c (s390_return_value): Ditto. * score-tdep.c (score_return_value): Ditto. * sh-tdep.c (sh_return_value_nofpu): Ditto. (sh_return_value_fpu): Ditto. * sh64-tdep.c (sh64_return_value): Ditto. * sparc-tdep.c (sparc32_return_value): Ditto. * sparc64-tdep.c (sparc64_return_value): Ditto. * spu-tdep.c (spu_return_value): Ditto. * v850-tdep.c (v850_return_value): Ditto. * vax-tdep.c (vax_return_value): Ditto. * xstormy16-tdep.c (xstormy16_return_value): Ditto. * xtensa-tdep.c (xtensa_return_value): Ditto. * gdbtypes.h (struct type): Add calling_convention member. * dwarf2read.c (read_subroutine_type): Add calling convention read from DW_AT_calling_convention attribute to function type.
2008-04-22 13:03:42 +02:00
* The SH target utilizes the aforementioned change to distinguish between gcc
and Renesas calling convention. It also adds the new CLI commands
`set/show sh calling-convention'.
doc/ChangeLog: -------------- * gdb.texinfo (Set SH Calling convention): New @item. (Show SH Calling convention): Ditto. ChangeLog: ---------- * NEWS: Add information on calling convention and new SH CLI options. * sh-tdep.c (sh_cc_gcc): New static string. (sh_cc_renesas): Ditto. (sh_cc_enum): New static string array. (sh_active_calling_convention): New static string pointer denoting active user chosen ABI. (sh_is_renesas_calling_convention): New function to return function specific ABI, or user choice if necessary. (sh_use_struct_convention): Rename first argument and turn around its meaning. Check for renesas ABI and return accordingly. (sh_use_struct_convention_nofpu): New function. (sh_next_flt_argreg): Get function type as third parameter. Check for renesas ABI and choose floating registers accordingly. (sh_push_dummy_call_fpu): Check for ABI and choose argument slot and struct return slot accordingly. (sh_push_dummy_call_nofpu): Ditto. (sh_return_value_nofpu): Call sh_use_struct_convention_nofpu from here. Evaluate ABI and give to sh_use_struct_convention_nofpu. (sh_return_value_fpu): Evaluate ABI and give to sh_use_struct_convention. (show_sh_command): New function. (set_sh_command): Ditto. (_initialize_sh_tdep): Initialize `set/show sh calling-convention CLI command. * gdbarch.sh (return_value): Add func_type argument. * gdbarch.c: Regenerate. * gdbarch.h: Ditto. * eval.c (evaluate_subexp_standard): Rename local variable value_type to val_type so as not to collide with value_type function. Call using_struct_return with additional function type argument. * infcall.c (call_function_by_hand): Call using_struct_return and gdbarch_return_value with additional function type argument. * infcmd.c (print_return_value): Take addition func_type argument. Call gdbarch_return_value with additional function type argument. (finish_command_continuation): Call print_return_value with additional function type argument. (finish_command): Ditto. * sparc-tdep.c (sparc32_push_dummy_code): Call using_struct_return with additional function type argument. * stack.c (return_command): Call using_struct_return and gdbarch_return_value with additional function type argument. * value.c (using_struct_return): Take additional function type argument. * value.h (using_struct_return): Accommodate declaration. * alpha-tdep.c (alpha_return_value): Add func_type argument. * amd64-tdep.c (amd64_return_value): Ditto. * arm-tdep.c (arm_return_value): Ditto. * avr-tdep.c (avr_return_value): Ditto. * cris-tdep.c (cris_return_value): Ditto. * frv-tdep.c (frv_return_value): Ditto. * h8300-tdep.c (h8300_return_value): Ditto. (h8300h_return_value): Ditto. * hppa-tdep.c (hppa32_return_value): Ditto. (hppa64_return_value): Ditto. * i386-tdep.c (i386_return_value): Ditto. * ia64-tdep.c (ia64_return_value): Ditto. * iq2000-tdep.c (iq2000_return_value): Ditto. * m32c-tdep.c (m32c_return_value): Ditto. * m32r-tdep.c (m32r_return_value): Ditto. * m68hc11-tdep.c (m68hc11_return_value): Ditto. * m68k-tdep.c (m68k_return_value): Ditto. (m68k_svr4_return_value): Ditto. * m88k-tdep.c (m88k_return_value): Ditto. * mep-tdep.c (mep_return_value): Ditto. * mips-tdep.c (mips_eabi_return_value): Ditto. (mips_n32n64_return_value): Ditto. (mips_o32_return_value): Ditto. (mips_o64_return_value): Ditto. * mn10300-tdep.c (mn10300_return_value): Ditto. * mt-tdep.c (mt_return_value): Ditto. * ppc-linux-tdep.c (ppc_linux_return_value): Ditto. * ppc-sysv-tdep.c (ppc_sysv_abi_return_value): Ditto. (ppc_sysv_abi_broken_return_value): Ditto. (ppc64_sysv_abi_return_value): Ditto. * ppc-tdep.h (ppc_sysv_abi_return_value): Ditto. (ppc_sysv_abi_broken_return_value): Ditto. (ppc64_sysv_abi_return_value): Ditto. * ppcnbsd-tdep.c (ppcnbsd_return_value): Ditto. * rs6000-tdep.c (rs6000_return_value): Ditto. * s390-tdep.c (s390_return_value): Ditto. * score-tdep.c (score_return_value): Ditto. * sh-tdep.c (sh_return_value_nofpu): Ditto. (sh_return_value_fpu): Ditto. * sh64-tdep.c (sh64_return_value): Ditto. * sparc-tdep.c (sparc32_return_value): Ditto. * sparc64-tdep.c (sparc64_return_value): Ditto. * spu-tdep.c (spu_return_value): Ditto. * v850-tdep.c (v850_return_value): Ditto. * vax-tdep.c (vax_return_value): Ditto. * xstormy16-tdep.c (xstormy16_return_value): Ditto. * xtensa-tdep.c (xtensa_return_value): Ditto. * gdbtypes.h (struct type): Add calling_convention member. * dwarf2read.c (read_subroutine_type): Add calling convention read from DW_AT_calling_convention attribute to function type.
2008-04-22 13:03:42 +02:00
* GDB can now read compressed debug sections, as produced by GNU gold
with the --compress-debug-sections=zlib flag.
* 64-bit core files are now supported on AIX.
* Thread switching is now supported on Tru64.
* Watchpoints can now be set on unreadable memory locations, e.g. addresses
which will be allocated using malloc later in program execution.
* The qXfer:libraries:read remote procotol packet now allows passing a
list of section offsets.
* On GNU/Linux, GDB can now attach to stopped processes. Several race
conditions handling signals delivered during attach or thread creation
have also been fixed.
* GDB now supports the use of DWARF boolean types for Ada's type Boolean.
From the user's standpoint, all unqualified instances of True and False
are treated as the standard definitions, regardless of context.
* GDB now parses C++ symbol and type names more flexibly. For
example, given:
template<typename T> class C { };
C<char const *> c;
GDB will now correctly handle all of:
ptype C<char const *>
ptype C<char const*>
ptype C<const char *>
ptype C<const char*>
* New features in the GDB remote stub, gdbserver
- The "--wrapper" command-line argument tells gdbserver to use a
wrapper program to launch programs for debugging.
- On PowerPC and S/390 targets, it is now possible to use a single
gdbserver executable to debug both 32-bit and 64-bit programs.
(This requires gdbserver itself to be built as a 64-bit executable.)
gdb/doc/ 2008-08-12 Sandra Loosemore <sandra@codesourcery.com> * gdb.texinfo (Remote Configuration): Document set remote noack-packet. (Remote Protocol): Add Packet Acknowledgment to menu. (Overview): Mention +/- can be disabled, and point to new section where this is discussed in detail. (General Query Packets): Document QStartNoAckMode packet, and corresponding qSupported reply. (Packet Acknowledgment): New section. gdb/ 2008-08-12 Pedro Alves <pedro@codesourcery.com> Add no-ack mode to the remote protocol --- optionally stop ACKing packets and responses when we have a reliable communication medium. Based on Apple's GDB, by Jason Molenda <jmolenda@apple.com> * remote.c (struct remote_state): Add noack_mode field. (PACKET_QStartNoAckMode): New. (remote_start_remote): Don't any outstanding packet here. (remote_open_1): Clear noack_mode. Ack any outstanding packet here. Activate noack mode if requested. (remote_protocol_features): Add QStartNoAckMode. (remote_open_1): (putpkt_binary): Don't send ack in noack mode. (read_frame): Don't recompute the checksum in noack mode. (getpkt_sane): Skip sending ack if in noack mode. (_initialize_remote): Add set/show remote noack mode. * NEWS: Note the new features. gdb/gdbserver/ 2008-08-12 Pedro Alves <pedro@codesourcery.com> * remote-utils.c (noack_mode, transport_is_reliable): New globals. (remote_open): Set or clear transport_is_reliable. (putpkt_binary): Don't expect acks in noack mode. (getpkt): Don't send ack/nac in noack mode. * server.c (handle_general_set): Handle QStartNoAckMode. (handle_query): If connected by tcp pass QStartNoAckMode+ in qSupported. (main): Reset noack_mode on every connection. * server.h (noack_mode): Declare.
2008-08-12 17:18:31 +02:00
- gdbserver uses the new noack protocol mode for TCP connections to
reduce communications latency, if also supported and enabled in GDB.
- Support for the sparc64-linux-gnu target is now included in
gdbserver.
- The amd64-linux build of gdbserver now supports debugging both
32-bit and 64-bit programs.
- The i386-linux, amd64-linux, and i386-win32 builds of gdbserver
now support hardware watchpoints, and will use them automatically
as appropriate.
Initial python support. gdb/ 2008-08-06 Vladimir Prus <vladimir@codesourcery.com> Tom Tromey <tromey@redhat.com> Thiago Jung Bauermann <bauerman@br.ibm.com> Doug Evans <dje@google.com> * Makefile.in (SUBDIR_PYTHON_OBS, SUBDIR_PYTHON_SRCS, SUBDIR_PYTHON_DEPS, SUBDIR_PYTHON_LDFLAGS, SUBDIR_PYTHON_CFLAGS, PYTHON_CFLAGS): New. (python_h, python_internal_h): New. (cli-script.o): Depend on python.h (python.o, python-utils.o): New. * cli/cli-script.c (print_command_lines): Handle python_control. (execute_control_command): Handle python_control. (execute_control_command_untraced): New function. (while_command): Call execute_control_command_untraced. (if_command): Likewise. (get_command_line): Remove static attribute. (read_next_line): Handle "python". (recurse_read_control_structure): Handle python_control. (read_command_lines): Handle python_control. Include python.h. * cli/cli-script.h (get_command_line): Add prototype. (execute_control_command_untraced): Likewise. * configure.ac: Add --with-python. * defs.h (enum command_control_type) <python_control>: New constant. * python/python-internal.h: New file. * python/python.c: New file. * python/python.h: New file. * python/python-utils.c: New file. * NEWS: Mention Python scripting support and its new commands. gdb/doc/ 2008-08-06 Tom Tromey <tromey@redhat.com> * gdb.texinfo (Extending GDB): New chapter. (Sequences): Demoted chapter, now a section under the new Extending GDB chapter. (Python): New section. gdb/testsuite/ 2008-08-06 Tom Tromey <tromey@redhat.com> * gdb.python/python.exp: New file.
2008-08-06 21:41:33 +02:00
* Python scripting
GDB now has support for scripting using Python. Whether this is
available is determined at configure time.
gdb/ 2009-02-06 Tom Tromey <tromey@redhat.com> * Makefile.in (SUBDIR_PYTHON_OBS): Add python-cmd.o. (SUBDIR_PYTHON_SRCS): Add python-cmd.c. (python-cmd.o): New target. * cli/cli-decode.c (set_cmd_completer): Add self parameter to completer prototype. (add_cmd): Initialize destroyer member of cmd_list_element. Use make_symbol_completion_list_fn as completer. (delete_cmd): Call destroyer if one is set. * cli/cli-decode.h (cmd_list_element): Add cmd parameter to completer member. Add destroyer member. (set_cmd_completer): Add self parameter to completer prototype. * command.h (set_cmd_completer): Add cmd parameter to completer prototype. * completer.c (noop_completer, filename_completer, location_completer, expression_completer, command_completer): Adapt to new completer prototype. (complete_line_internal): Pass new parameter to completer function. * completer.h (noop_completer, filename_completer, location_completer, expression_completer, command_completer): Adapt prototypes to new completer prototype. * interps.c (interpreter_completer): Adapt to new completer prototype. * python/python-cmd.c: New file. * python/python-internal.h (gdbpy_initialize_commands): Add prototype. (gdbpy_doc_cst): Add forward declaration. * python/python.c (gdbpy_doc_cst): Declare. (_initialize_python): Call gdbpy_initialize_commands. Initialize gdbpy_doc_cst. * symtab.c (make_symbol_completion_list_fn): New function. * symtab.h (make_symbol_completion_list_fn): Add prototype. gdb/doc/ 2009-02-06 Tom Tromey <tromey@redhat.com> * gdb.texinfo (Python API): Add entry for Commands In Python. (Commands In Python): New node. gdb/testsuite/ 2009-02-06 Thiago Jung Bauermann <bauerman@br.ibm.com> * gdb.python/python-cmd.exp: New file.
2009-02-06 22:33:59 +01:00
New GDB commands can now be written in Python.
* Ada tasking support
Ada tasks can now be inspected in GDB. The following commands have
been introduced:
info tasks
Print the list of Ada tasks.
info task N
Print detailed information about task number N.
task
Print the task number of the current task.
task N
Switch the context of debugging to task number N.
* Support for user-defined prefixed commands. The "define" command can
add new commands to existing prefixes, e.g. "target".
gdb/ 2009-07-02 Pedro Alves <pedro@codesourcery.com> * linux-nat.c (linux_child_follow_fork): If we're staying attached to the child process, enable event reporting on it. Don't handle checkpoints here. Instead, add the child fork to the lwp thread and inferior lists without clobbering the previous inferior. Let the thread_db layer learn about a new child process, even if following the parent. (linux_nat_switch_fork): Delete lwps of the current inferior only, instead of clearing the whole list. Use thread_change_ptid to give the core the illusion the new checkpoint is still the same inferior. Clear the register cache. (linux_handle_extended_wait): Handle checkpoints here. (linux_multi_process): Turn on. * linux-fork.c (struct fork_info) <pc>: Remove field. (init_fork_list): Do not delete the checkpoint from the inferior list (it is not there). (fork_load_infrun_state): Don't switch inferior_ptid here. Pass the new checkpoint's ptid to linux_nat_switch_fork. (fork_save_infrun_state): Make static. Don't stop the pc field of fork_info, it's gone. (linux_fork_mourn_inferior): Don't delete the checkpoint from the inferior list, it's not there. (linux_fork_detach): Ditto. (delete_fork_command): Replace mention of fork/checkpoint by checkpoint only. (detach_fork_command): Likewise. Don't delete the checkpoint from the inferior list. (info_forks_command): Adjust. (restore_detach_fork): Delete. (checkpointing_pid): New. (linux_fork_checkpointing_p): New. (save_detach_fork): Delete. (checkpoint_command): Delete temp_detach_fork. Don't remove breakpoints, that's a nop. Store the pid of the process we're checkpointing, and use make_cleanup_restore_integer to restore it. Don't reinsert breakpoints here. (process_command, fork_command): Delete. (restart_command): Update comments to only mention checkpoints, not forks. (_initialize_linux_fork): Delete "fork", "process", "info forks" commands. * linux-fork.h (fork_save_infrun_state, fork_list): Delete declarations. (linux_fork_checkpointing_p): Declare. * cli/cli-cmds.c (killlist): New. * cli/cli-cmds.h (killlist): Declare. * gdbcmd.h (killlist): Declare. * inferior.c: Include "gdbthread.h". (detach_inferior_command, kill_inferior_command) (inferior_command): New. (info_inferiors_command): Allow specifying a specific inferior id. (_initialize_inferiors): Register "inferior", "kill inferior" and "detach inferior" commands. * infcmd.c (_initialize_infcmd): Make "kill" a prefix command. * gdbthread.h (any_thread_of_process): Declare. * thread.c (any_thread_of_process): New. * NEWS: Mention multi-inferior debugging. Mention 'info inferiors', 'inferior', 'detach inferior' and 'kill inferior' as new commands. (Removed commands): New section, mentioning that 'info forks', 'fork', 'process', 'delete fork' and 'detach fork' are now gone. gdb/testsuite/ 2009-07-02 Pedro Alves <pedro@codesourcery.com> * gdb.base/multi-forks.exp: Only run detach-on-fork tests on linux. Adjust to use "inferior", "info inferiors", "detach inferior" and "kill inferior" instead of "restart", "info fork", "detach fork" and "delete fork". * gdb.base/ending-run.exp: Spell out "info". * gdb.base/help.exp: Adjust to use test_prefix_command_help for the "kill" command. gdb/doc/ 2009-07-02 Pedro Alves <pedro@codesourcery.com> * gdb.texinfo (Debugging multiple inferiors): Document the "inferior", "detach inferior" and "kill inferior" commands. (Debugging Programs with Multiple Processes): Adjust to mention generic "inferior" commands. Delete mention of "detach fork" and "delete fork". Cross reference to "Debugging multiple inferiors" section.
2009-07-02 23:57:28 +02:00
* Multi-inferior, multi-process debugging.
GDB now has generalized support for multi-inferior debugging. See
"Debugging Multiple Inferiors" in the manual for more information.
Although availability still depends on target support, the command
set is more uniform now. The GNU/Linux specific multi-forks support
has been migrated to this new framework. This implied some user
visible changes; see "New commands" and also "Removed commands"
below.
2009-07-20 20:51:42 +02:00
* Target descriptions can now describe the target OS ABI. See the
"Target Description Format" section in the user manual for more
information.
* Target descriptions can now describe "compatible" architectures
to indicate that the target can execute applications for a different
architecture in addition to those for the main target architecture.
See the "Target Description Format" section in the user manual for
more information.
ChangeLog: * target.h (enum strata): New value arch_stratum. * target.c (target_require_runnable): Skip arch_stratum targets. * configure.tgt (powerpc-*-linux* | powerpc64-*-linux*): Add solib-spu.o and spu-multiarch.o to gdb_target_obs. * Makefile.in (ALL_TARGET_OBS): Add solib-spu.o and spu-multiarch.o. (ALLDEPFILES): Add solib-spu.c and spu-multiarch.c. * solib-spu.c: New file. * solib-spu.h: New file. * spu-multiarch.c: New file. * spu-tdep.h (SPUADDR, SPUADDR_SPU, SPUADDR_ADDR): New macros. * spu-tdep.c (struct gdbarch_tdep): New member id. (spu_gdbarch_id): New function. (spu_lslr): New function. (spu_address_to_pointer): New function. (spu_pointer_to_address): Support SPU ID address encoding. Use spu_gdbarch_id and spu_lslr. (spu_integer_to_address): Likewise. (spu_frame_unwind_cache): Update for encoded addresses. (spu_unwind_pc, spu_unwind_sp): Likewise. (spu_read_pc, spu_write_pc): Likewise. (spu_push_dummy_call): Likewise. (spu_software_single_step): Likewise. (spu_get_longjmp_target): Likewise. (spu_overlay_update_osect): Likewise. (spu_dis_asm_print_address): New function. (gdb_print_insn_spu): Likewise. (spu_gdbarch_init): Store SPU ID in tdep structure. Install spu_address_to_pointer and gdb_print_insn_spu. * ppc-linux-tdep.c: Include "observer.h", "auxv.h", "elf/common.h" and "solib-spu.h". (ppc_linux_entry_point_addr): New static variable. (ppc_linux_inferior_created): New function. (ppc_linux_displaced_step_location): Likewise. (ppc_linux_init_abi): Enable Cell/B.E. support if supported by the target. (_initialize_ppc_linux_tdep): Attach to inferior_created observer. * NEWS: Mention multi-architecture and Cell/B.E. debugging capabilities. testsuite/ChangeLog: * gdb.xml/tdesc-regs.exp: Skip for SPU targets.
2009-07-31 17:28:27 +02:00
* Multi-architecture debugging.
GDB now includes general supports for debugging applications on
hybrid systems that use more than one single processor architecture
at the same time. Each such hybrid architecture still requires
specific support to be added. The only hybrid architecture supported
in this version of GDB is the Cell Broadband Engine.
* GDB now supports integrated debugging of Cell/B.E. applications that
use both the PPU and SPU architectures. To enable support for hybrid
Cell/B.E. debugging, you need to configure GDB to support both the
powerpc-linux or powerpc64-linux and the spu-elf targets, using the
--enable-targets configure option.
2009-10-04 19:39:30 +02:00
* Non-stop mode debugging.
For some targets, GDB now supports an optional mode of operation in
which you can examine stopped threads while other threads continue
to execute freely. This is referred to as non-stop mode, with the
old mode referred to as all-stop mode. See the "Non-Stop Mode"
section in the user manual for more information.
To be able to support remote non-stop debugging, a remote stub needs
to implement the non-stop mode remote protocol extensions, as
described in the "Remote Non-Stop" section of the user manual. The
GDB remote stub, gdbserver, has been adjusted to support these
extensions on linux targets.
* New commands (for set/show, see "New options" below)
Implementing catch syscall. * amd64-linux-tdep.c: Include xml-syscall.h header, define the XML syscall name for the architecture. (amd64_linux_get_syscall_number): New function. (amd64_linux_init_abi): Register the correct functions for syscall catchpoint; set the correct syscall file name. * breakpoint.c: New include: xml-syscall.h. (set_raw_breakpoint_without_location): Setting the parameters for the catch syscall feature. (insert_catch_syscall): New. (remove_catch_syscall): New. (breakpoint_hit_catch_syscall): New. (print_it_catch_syscall): New. (print_one_catch_syscall): New. (print_mention_catch_syscall): New. (catch_syscall_breakpoint_ops): New. (syscall_catchpoint_p): New. (create_catchpoint_without_mention): New. (create_catchpoint): Modified in order to use create_catchpoint_without_mention. (create_syscall_event_catchpoint): New. (clean_up_filters): New. (catch_syscall_split_args): New. (catch_syscall_command_1): New. (delete_breakpoint): Add cleanup for catch syscall. (is_syscall_catchpoint_enabled): New. (catch_syscall_enabled): New. (catching_syscall_number): New. (catch_syscall_completer): New completer function. (add_catch_command): Add the completer function for catchpoints. * breakpoint.h (syscalls_to_be_caught): New vector. (catch_syscall_enabled): New. (catching_syscall_number): New. * gdbarch.c: Regenerated. * gdbarch.h: Regenerated. * gdbarch.sh: Add syscall catchpoint functions and structures. (get_syscall_number): New. (UNKNOWN_SYSCALL): New definition. * i386-linux-nat.c (i386_linux_resume): Select the proper request to be made for ptrace() considering if we are catching syscalls or not. * i386-linux-tdep.c: Include xml-syscall.h header, define the XML syscall name for the architecture. (i386_linux_get_syscall_number): New. (i386_linux_init_abi): Register the correct functions for syscall catchpoint; set the correct syscall file name. * inf-child.c (inf_child_set_syscall_catchpoint): New. (inf_child_target): Assign default values to target_ops. * inf-ptrace.c (inf_ptrace_resume): Select the proper request to be made for ptrace() considering if we are catching syscalls or not. * inferior.h (struct inferior): Included new variables any_syscall_count, syscalls_counts and total_syscalls_count, used to keep track of requested syscall catchpoints. * infrun.c (resume): Add syscall catchpoint. (deal_with_syscall_event): New. (handle_inferior_event): Add syscall entry/return events. (inferior_has_called_syscall): New. * linux-nat.c: Define some helpful variables to track wether we have support for the needed ptrace option. (linux_test_for_tracesysgood): New. (linux_supports_tracesysgood): New. (linux_enable_tracesysgood): New. (linux_enable_event_reporting): Save the current used ptrace options. (linux_child_post_attach): Calling linux_enable_tracesysgood. (linux_child_post_startup_inferior): Likewise. (linux_child_set_syscall_catchpoint): New function. (linux_handle_extended_wait): Handle the case which the inferior stops because it has called or returned from a syscall. (linux_target_install_ops): Install the necessary functions to handle syscall catchpoints. * linux-nat.h (struct lwp_info): Include syscall_state into the structure, which indicates if we are in a syscall entry or return. * ppc-linux-tdep.c: Include xml-syscall.h header, define the XML syscall filename for the arch. (ppc_linux_get_syscall_number): New. (ppc_linux_init_abi): Register the correct functions for syscall catchpoint; setting the correct name for the XML syscall file. * target.c (update_current_target): Update/copy functions related to syscall catchpoint. (target_waitstatus_to_string): Add syscall catchpoint entry/return events. * target.h (struct target_waitstatus): Add syscall number. (struct syscall): New struct to hold information about syscalls in the system. (struct target_ops): Add ops for syscall catchpoint. (inferior_has_called_syscall): New. (target_set_syscall_catchpoint): New. * xml-support.c (xml_fetch_content_from_file): New function, transferred from xml-tdesc.c. * xml-support.h (xml_fetch_content_from_file): New. * xml-tdesc.c (fetch_xml_from_file): Function removed; transferred to xml-support.c. (file_read_description_xml): Updated to use the new xml_fetch_content_from_file function. * syscalls/gdb-syscalls.dtd: New definition file for syscall's XML support. * syscalls/amd64-linux.xml: New file containing information about syscalls for GNU/Linux systems that use amd64 architecture. * syscalls/i386-linux.xml: New file containing information about syscalls for GNU/Linux systems that use i386 architecture. * syscalls/ppc-linux.xml: New file containing information about syscalls for GNU/Linux systems that use PPC architecture. * syscalls/ppc64-linux.xml: New file containing information about syscalls for GNU/Linux systems that use PPC64 architecture. * xml-syscall.c: New file containing functions for manipulating syscall's XML files. * xml-syscall.h: New file, exporting the functions above mentioned. * Makefile.in: Support for relocatable GDB datadir and XML syscall. * NEWS: Added information about the catch syscall feature. * doc/gdb.texinfo (Set Catchpoints): Documentation about the new feature. * testsuite/Makefile.in: Inclusion of catch-syscall object. * testsuite/gdb.base/catch-syscall.c: New file. * testsuite/gdb.base/catch-syscall.exp: New file.
2009-09-15 05:30:08 +02:00
catch syscall [NAME(S) | NUMBER(S)]
Catch system calls. Arguments, which should be names of system
calls or their numbers, mean catch only those syscalls. Without
arguments, every syscall will be caught. When the inferior issues
any of the specified syscalls, GDB will stop and announce the system
call, both when it is called and when its call returns. This
feature is currently available with a native GDB running on the
Linux Kernel, under the following architectures: x86, x86_64,
PowerPC and PowerPC64.
find [/size-char] [/max-count] start-address, end-address|+search-space-size,
val1 [, val2, ...]
Search memory for a sequence of bytes.
Initial python support. gdb/ 2008-08-06 Vladimir Prus <vladimir@codesourcery.com> Tom Tromey <tromey@redhat.com> Thiago Jung Bauermann <bauerman@br.ibm.com> Doug Evans <dje@google.com> * Makefile.in (SUBDIR_PYTHON_OBS, SUBDIR_PYTHON_SRCS, SUBDIR_PYTHON_DEPS, SUBDIR_PYTHON_LDFLAGS, SUBDIR_PYTHON_CFLAGS, PYTHON_CFLAGS): New. (python_h, python_internal_h): New. (cli-script.o): Depend on python.h (python.o, python-utils.o): New. * cli/cli-script.c (print_command_lines): Handle python_control. (execute_control_command): Handle python_control. (execute_control_command_untraced): New function. (while_command): Call execute_control_command_untraced. (if_command): Likewise. (get_command_line): Remove static attribute. (read_next_line): Handle "python". (recurse_read_control_structure): Handle python_control. (read_command_lines): Handle python_control. Include python.h. * cli/cli-script.h (get_command_line): Add prototype. (execute_control_command_untraced): Likewise. * configure.ac: Add --with-python. * defs.h (enum command_control_type) <python_control>: New constant. * python/python-internal.h: New file. * python/python.c: New file. * python/python.h: New file. * python/python-utils.c: New file. * NEWS: Mention Python scripting support and its new commands. gdb/doc/ 2008-08-06 Tom Tromey <tromey@redhat.com> * gdb.texinfo (Extending GDB): New chapter. (Sequences): Demoted chapter, now a section under the new Extending GDB chapter. (Python): New section. gdb/testsuite/ 2008-08-06 Tom Tromey <tromey@redhat.com> * gdb.python/python.exp: New file.
2008-08-06 21:41:33 +02:00
maint set python print-stack
maint show python print-stack
Show a stack trace when an error is encountered in a Python script.
python [CODE]
Invoke CODE by passing it to the Python interpreter.
macro define
macro list
macro undef
These allow macros to be defined, undefined, and listed
interactively.
info os processes
Show operating system information about processes.
gdb/ 2009-07-02 Pedro Alves <pedro@codesourcery.com> * linux-nat.c (linux_child_follow_fork): If we're staying attached to the child process, enable event reporting on it. Don't handle checkpoints here. Instead, add the child fork to the lwp thread and inferior lists without clobbering the previous inferior. Let the thread_db layer learn about a new child process, even if following the parent. (linux_nat_switch_fork): Delete lwps of the current inferior only, instead of clearing the whole list. Use thread_change_ptid to give the core the illusion the new checkpoint is still the same inferior. Clear the register cache. (linux_handle_extended_wait): Handle checkpoints here. (linux_multi_process): Turn on. * linux-fork.c (struct fork_info) <pc>: Remove field. (init_fork_list): Do not delete the checkpoint from the inferior list (it is not there). (fork_load_infrun_state): Don't switch inferior_ptid here. Pass the new checkpoint's ptid to linux_nat_switch_fork. (fork_save_infrun_state): Make static. Don't stop the pc field of fork_info, it's gone. (linux_fork_mourn_inferior): Don't delete the checkpoint from the inferior list, it's not there. (linux_fork_detach): Ditto. (delete_fork_command): Replace mention of fork/checkpoint by checkpoint only. (detach_fork_command): Likewise. Don't delete the checkpoint from the inferior list. (info_forks_command): Adjust. (restore_detach_fork): Delete. (checkpointing_pid): New. (linux_fork_checkpointing_p): New. (save_detach_fork): Delete. (checkpoint_command): Delete temp_detach_fork. Don't remove breakpoints, that's a nop. Store the pid of the process we're checkpointing, and use make_cleanup_restore_integer to restore it. Don't reinsert breakpoints here. (process_command, fork_command): Delete. (restart_command): Update comments to only mention checkpoints, not forks. (_initialize_linux_fork): Delete "fork", "process", "info forks" commands. * linux-fork.h (fork_save_infrun_state, fork_list): Delete declarations. (linux_fork_checkpointing_p): Declare. * cli/cli-cmds.c (killlist): New. * cli/cli-cmds.h (killlist): Declare. * gdbcmd.h (killlist): Declare. * inferior.c: Include "gdbthread.h". (detach_inferior_command, kill_inferior_command) (inferior_command): New. (info_inferiors_command): Allow specifying a specific inferior id. (_initialize_inferiors): Register "inferior", "kill inferior" and "detach inferior" commands. * infcmd.c (_initialize_infcmd): Make "kill" a prefix command. * gdbthread.h (any_thread_of_process): Declare. * thread.c (any_thread_of_process): New. * NEWS: Mention multi-inferior debugging. Mention 'info inferiors', 'inferior', 'detach inferior' and 'kill inferior' as new commands. (Removed commands): New section, mentioning that 'info forks', 'fork', 'process', 'delete fork' and 'detach fork' are now gone. gdb/testsuite/ 2009-07-02 Pedro Alves <pedro@codesourcery.com> * gdb.base/multi-forks.exp: Only run detach-on-fork tests on linux. Adjust to use "inferior", "info inferiors", "detach inferior" and "kill inferior" instead of "restart", "info fork", "detach fork" and "delete fork". * gdb.base/ending-run.exp: Spell out "info". * gdb.base/help.exp: Adjust to use test_prefix_command_help for the "kill" command. gdb/doc/ 2009-07-02 Pedro Alves <pedro@codesourcery.com> * gdb.texinfo (Debugging multiple inferiors): Document the "inferior", "detach inferior" and "kill inferior" commands. (Debugging Programs with Multiple Processes): Adjust to mention generic "inferior" commands. Delete mention of "detach fork" and "delete fork". Cross reference to "Debugging multiple inferiors" section.
2009-07-02 23:57:28 +02:00
info inferiors
List the inferiors currently under GDB's control.
inferior NUM
Switch focus to inferior number NUM.
detach inferior NUM
Detach from inferior number NUM.
kill inferior NUM
Kill inferior number NUM.
* New options
set spu stop-on-load
show spu stop-on-load
Control whether to stop for new SPE threads during Cell/B.E. debugging.
set spu auto-flush-cache
show spu auto-flush-cache
Control whether to automatically flush the software-managed cache
during Cell/B.E. debugging.
set sh calling-convention
show sh calling-convention
Control the calling convention used when calling SH target functions.
2008-07-10 18:44:47 +02:00
set debug timestamp
show debug timestamp
Control display of timestamps with GDB debugging output.
set disassemble-next-line
show disassemble-next-line
Control display of disassembled source lines or instructions when
the debuggee stops.
set remote noack-packet
show remote noack-packet
Set/show the use of remote protocol QStartNoAckMode packet. See above
under "New remote packets."
set remote query-attached-packet
show remote query-attached-packet
Control use of remote protocol `qAttached' (query-attached) packet.
set remote read-siginfo-object
show remote read-siginfo-object
Control use of remote protocol `qXfer:siginfo:read' (read-siginfo-object)
packet.
set remote write-siginfo-object
show remote write-siginfo-object
Control use of remote protocol `qXfer:siginfo:write' (write-siginfo-object)
packet.
set remote reverse-continue
show remote reverse-continue
Control use of remote protocol 'bc' (reverse-continue) packet.
set remote reverse-step
show remote reverse-step
Control use of remote protocol 'bs' (reverse-step) packet.
set displaced-stepping
show displaced-stepping
Control displaced stepping mode. Displaced stepping is a way to
single-step over breakpoints without removing them from the debuggee.
Also known as "out-of-line single-stepping".
set debug displaced
show debug displaced
Control display of debugging info for displaced stepping.
maint set internal-error
maint show internal-error
Control what GDB does when an internal error is detected.
maint set internal-warning
maint show internal-warning
Control what GDB does when an internal warning is detected.
set exec-wrapper
show exec-wrapper
unset exec-wrapper
Use a wrapper program to launch programs for debugging.
set multiple-symbols (all|ask|cancel)
show multiple-symbols
The value of this variable can be changed to adjust the debugger behavior
when an expression or a breakpoint location contains an ambiguous symbol
name (an overloaded function name, for instance).
* breakpoint.h (bp_location_p): New typedef. Register a vector of bp_location_p. * breakpoint.c (always_inserted_mode) (show_always_inserted_mode): New. (unlink_locations_from_global_list): Remove. (update_global_location_list) (update_global_location_list_nothrow): New. (update_watchpoint): Don't free locations. (should_insert_location): New. (insert_bp_location): Use should_insert_location. (insert_breakpoint_locations): Copied from insert_breakpoints. (insert_breakpoint): Use insert_breakpoint_locations. (bpstat_stop_status): Call update_global_location_list when disabling breakpoint. (allocate_bp_location): Don't add to bp_location_chain. (set_raw_breakpoint) (create_longjmp_breakpoint, enable_longjmp_breakpoint) (disable_longjmp_breakpoint, create_overlay_event_breakpoint) (enable_overlay_breakpoints, disable_overlay_breakpoints) (set_longjmp_resume_breakpoint) (enable_watchpoints_after_interactive_call_stop) (disable_watchpoints_before_interactive_call_start) (create_internal_breakpoint) (create_fork_vfork_event_catchpoint) (create_exec_event_catchpoint, set_momentary_breakpoint) (create_breakpoints, break_command_1, watch_command_1) (create_exception_catchpoint) (handle_gnu_v3_exceptions) (disable_breakpoint, breakpoint_re_set_one) (create_thread_event_breakpoint, create_solib_event_breakpoint) (create_ada_exception_breakpoint): : Don't call check_duplicates. Call update_global_location_list. (delete_breakpoint): Don't remove locations and don't try to reinsert them. Call update_global_location_list. (update_breakpoint_locations): Likewise. (restore_always_inserted_mode): New. (update_breakpoints_after_exec): Temporary disable always inserted mode. * Makefile.in: Update dependencies. * infrun.c (proceed): Remove breakpoints while stepping over breakpoint. (handle_inferior_event): Don't remove or insert breakpoints. * linux-fork.c (checkpoint_command): Remove breakpoints before fork and insert after. (linux_fork_context): Remove breakpoints before switch and insert after. * target.c (target_disconnect, target_detach): Remove breakpoints from target.
2008-04-24 12:21:45 +02:00
set breakpoint always-inserted
show breakpoint always-inserted
Keep breakpoints always inserted in the target, as opposed to inserting
them when resuming the target, and removing them when the target stops.
This option can improve debugger performance on slow remote targets.
set arm fallback-mode (arm|thumb|auto)
show arm fallback-mode
set arm force-mode (arm|thumb|auto)
show arm force-mode
These commands control how ARM GDB determines whether instructions
are ARM or Thumb. The default for both settings is auto, which uses
the current CPSR value for instructions without symbols; previous
versions of GDB behaved as if "set arm fallback-mode arm".
set disable-randomization
show disable-randomization
Standalone programs run with the virtual address space randomization enabled
by default on some platforms. This option keeps the addresses stable across
multiple debugging sessions.
set non-stop
show non-stop
Control whether other threads are stopped or not when some thread hits
a breakpoint.
2008-08-20 06:58:34 +02:00
set target-async
show target-async
2008-08-20 06:58:34 +02:00
Requests that asynchronous execution is enabled in the target, if available.
In this case, it's possible to resume target in the background, and interact
with GDB while the target is running. "show target-async" displays the
current state of asynchronous execution of the target.
gdb: 2009-03-19 Tom Tromey <tromey@redhat.com> Julian Brown <julian@codesourcery.com> PR i18n/7220, PR i18n/7821, PR exp/8815, PR exp/9103, PR i18n/9401, PR exp/9613: * NEWS: Update * value.h (value_typed_string): Declare. (val_print_string): Update. * valprint.h (print_char_chars): Update. * valprint.c (print_char_chars): Add type argument. Update. (val_print_string): Likewise. * valops.c (value_typed_string): New function. * utils.c (host_char_to_target): New function. (parse_escape): Use host_char_to_target, host_hex_value. Update. Remove '^' case. (no_control_char_error): Remove. * typeprint.c (print_type_scalar): Update. * scm-valprint.c (scm_scmval_print): Update. * scm-lang.h (scm_printchar, scm_printstr): Update. * scm-lang.c (scm_printchar): Add type argument. (scm_printstr): Likewise. * printcmd.c (print_formatted): Update. (print_scalar_formatted): Update. (printf_command) <wide_string_arg, wide_char_arg>: New constants. Handle '%lc' and '%ls'. * parser-defs.h (struct typed_stoken): New type. (struct stoken_vector): Likewise. (write_exp_string_vector): Declare. * parse.c (write_exp_string_vector): New function. * p-valprint.c (pascal_val_print): Update. * p-lang.h (is_pascal_string_type, pascal_printchar, pascal_printstr): Update. * p-lang.c (is_pascal_string_type): Remove 'char_size' argument. Add 'char_type' argument. (pascal_emit_char): Add type argument. (pascal_printchar): Likewise. (pascal_printstr): Likewise. * objc-lang.c (objc_emit_char): Add type argument. (objc_printchar): Likewise. (objc_printstr): Likewise. * macroexp.c (get_character_constant): Handle unicode characters. Use c_parse_escape. (get_string_literal): Handle unicode strings. Use c_parse_escape. * m2-valprint.c (print_unpacked_pointer): Update. (m2_print_array_contents): Update. (m2_val_print): Update. * m2-lang.c (m2_emit_char): Add type argument. (m2_printchar): Likewise. (m2_printstr): Likewise. * language.h (struct language_defn) <la_printchar>: Add type argument. <la_printstr, la_emitchar>: Likewise. (LA_PRINT_CHAR): Likewise. (LA_PRINT_STRING): Likewise. (LA_EMIT_CHAR): Likewise. * language.c (unk_lang_emit_char): Add type argument. (unk_lang_printchar): Likewise. (unk_lang_printstr): Likewise. * jv-valprint.c (java_val_print): Update. * jv-lang.c (java_emit_char): Add type argument. * f-valprint.c (f_val_print): Update. * f-lang.c (f_emit_char): Add type argument. (f_printchar): Likewise. (f_printstr): Likewise. * expprint.c (print_subexp_standard): Update. * charset.h (target_wide_charset): Declare. (c_target_char_has_backslash_escape, c_parse_backslash, host_char_print_literally, host_char_to_target, target_char_to_host, target_char_to_control_char): Remove. (enum transliterations): New type. (convert_between_encodings): Declare. (HOST_ESCAPE_CHAR): New define. (host_letter_to_control_character, host_hex_value): Declare. (enum wchar_iterate_result): New enum. (struct wchar_iterator): Declare. (make_wchar_iterator, make_cleanup_wchar_iterator, wchar_iterator, wchar_push_back): Declare. * charset-list.h: New file. * c-valprint.c (textual_name): New function. (textual_element_type): Handle wide character types. (c_val_print): Pass original type to textual_element_type. Handle wide character types. (c_value_print): Use textual_element_type. Pass original type of value to val_print. * c-lang.h (enum c_string_type): New type. (c_printchar, c_printstr): Update. * c-lang.c (classify_type): New function. (print_wchar): Likewise. (c_emit_char): Add type argument. Handle wide characters. (c_printchar): Likewise. (c_printstr): Add type argument. Handle wide and multibyte character sets. (convert_ucn): New function. (emit_numeric_character): Likewise. (convert_octal): Likewise. (convert_hex): Likewise. (ADVANCE): New macro. (convert_escape): New function. (parse_one_string): Likewise. (evaluate_subexp_c): Likewise. (exp_descriptor_c): New global. (c_language_defn): Use exp_descriptor_c. (cplus_language_defn): Likewise. (asm_language_defn): Likewise. (minimal_language_defn): Likewise. (charset_for_string_type): New function. * c-exp.y (%union): Add 'svec' and 'tsval'. (CHAR): New token. (exp): Add CHAR production. (string_exp): Rewrite. (exp) <string_exp>: Rewrite. (tempbuf): Now global. (tempbuf_init): New global. (parse_string_or_char): New function. (yylex) <tempbuf>: Now global. <tokptr, tempbufindex, tempbufsize, token_string, class_prefix>: Remove. Handle 'u', 'U', and 'L' prefixes. Call parse_string_or_char. (c_parse_escape): New function. * auxv.c (fprint_target_auxv): Update. * ada-valprint.c (ada_emit_char): Add type argument. (ada_printchar): Likewise. (ada_print_scalar): Update. (printstr): Add type argument. Update calls to ada_emit_char. (ada_printstr): Add type argument. (ada_val_print_array): Update. (ada_val_print_1): Likewise. * ada-lang.c (emit_char): Add type argument. * ada-lang.h (ada_emit_char, ada_printchar, ada_printstr): Add type arguments. * gdb_locale.h: Include langinfo.h. * charset.c (_initialize_charset): Set default host charset from the locale. Don't register charsets. Add target-wide-charset commands. Call find_charset_names. (struct charset, struct translation): Remove. (GDB_DEFAULT_HOST_CHARSET): Remove. (GDB_DEFAULT_TARGET_WIDE_CHARSET): New define. (target_wide_charset_name): New global. (show_host_charset_name): Handle "auto". (show_target_wide_charset_name): New function. (host_charset_enum, target_charset_enum): Remove. (charset_enum): New global. (all_charsets, register_charset, lookup_charset, all_translations, register_translation, lookup_translation): Remove. (simple_charset, ascii_print_literally, ascii_to_control): Remove. (iso_8859_print_literally, iso_8859_to_control, iso_8859_family_charset): Remove. (ebcdic_print_literally, ebcdic_to_control, ebcdic_family_charset): Remove. (struct cached_iconv, check_iconv_cache, cached_iconv_convert, register_iconv_charsets): Remove. (target_wide_charset_be_name, target_wide_charset_le_name): New globals. (identity_either_char_to_other): Remove. (set_be_le_names, validate): New functions. (backslashable, backslashed, represented): Remove. (default_c_target_char_has_backslash_escape): Remove. (default_c_parse_backslash, iconv_convert): Remove. (ascii_to_iso_8859_1_table, ascii_to_ebcdic_us_table, ascii_to_ibm1047_table, iso_8859_1_to_ascii_table, iso_8859_1_to_ebcdic_us_table, iso_8859_1_to_ibm1047_table, ebcdic_us_to_ascii_table, ebcdic_us_to_iso_8859_1_table, ebcdic_us_to_ibm1047_table, ibm1047_to_ascii_table, ibm1047_to_iso_8859_1_table, ibm1047_to_ebcdic_us_table): Remove. (table_convert_char, table_translation, simple_table_translation): Remove. (current_host_charset, current_target_charset, c_target_char_has_backslash_escape_func, c_target_char_has_backslash_escape_baton): Remove. (c_parse_backslash_func, c_parse_backslash_baton): Remove. (host_char_to_target_func, host_char_to_target_baton): Remove. (target_char_to_host_func, target_char_to_host_baton): Remove. (cached_iconv_host_to_target, cached_iconv_target_to_host): Remove. (lookup_charset_or_error, check_valid_host_charset): Remove. (set_host_and_target_charsets): Remove. (set_host_charset, set_target_charset): Remove. (set_host_charset_sfunc, set_target_charset_sfunc): Rewrite. (set_target_wide_charset_sfunc): New function. (show_charset): Print target wide character set. (host_charset, target_charset): Rewrite. (target_wide_charset): New function. (c_target_char_has_backslash_escape): Remove. (c_parse_backslash): Remove. (host_letter_to_control_character): New function. (host_char_print_literally): Remove. (host_hex_value): New function. (target_char_to_control_char): Remove. (cleanup_iconv): New function. (convert_between_encodings): New function. (target_char_to_host): Remove. (struct wchar_iterator): Define. (make_wchar_iterator, make_cleanup_wchar_iterator, wchar_iterator, wchar_push_back): New functions. (do_cleanup_iterator): New function. (char_ptr): New typedef. (charsets): New global. (add_one, find_charset_names): New functions. (default_charset_names): New global. (auto_host_charset_name): Likewise. * aclocal.m4, config.in, configure: Rebuild. * configure.ac: Call AM_LANGINFO_CODESET. (GDB_DEFAULT_HOST_CHARSET): Default to UTF-8. (AM_ICONV): Invoke earlier. * acinclude.m4: Include codeset.m4. Subst LIBICONV_INCLUDE and LIBICONV_LIBDIR. Check for libiconv in build tree. * Makefile.in (LIBICONV_LIBDIR, LIBICONV_INCLUDE): New macros. (INTERNAL_CFLAGS_BASE): Add LIBICONV_INCLUDE. (INTERNAL_LDFLAGS): Add LIBICONV_LIBDIR. * gdb_obstack.h (obstack_grow_wstr): New define. * gdb_wchar.h: New file. * defs.h: Include it. gdb/testsuite: * gdb.base/store.exp: Update for change to escape output. * gdb.base/callfuncs.exp (fetch_all_registers): Update for change to escape output. * gdb.base/pointers.exp: Update for change to escape output. * gdb.base/long_long.exp (gdb_test_long_long): Update for change to escape output. * gdb.base/constvars.exp (do_constvar_tests): Update for change to escape output. * gdb.base/call-rt-st.exp (print_struct_call): Update for change to escape output. * gdb.cp/ref-types.exp (gdb_start_again): Update for change to escape output. * gdb.base/setvar.exp: Update for change to escape output. * lib/gdb.exp (default_gdb_start): Set LC_CTYPE to C. * gdb.base/printcmds.exp (test_print_all_chars): Update for change to escape output. (test_print_string_constants): Likewise. * gdb.base/charset.exp (valid_host_charset): Check size of wchar_t. Handle UCS-2 and UCS-4. Add tests for wide and unicode cases. Handle "auto"-related output. * gdb.base/charset.c (char16_t, char32_t): New typedefs. (uvar, Uvar): New globals. gdb/doc: * gdb.texinfo (Character Sets): Remove obsolete text. Document set target-wide-charset. (Requirements): Mention iconv.
2009-03-21 00:04:40 +01:00
set target-wide-charset
show target-wide-charset
The target-wide-charset is the name of the character set that GDB
uses when printing characters whose type is wchar_t.
set tcp auto-retry (on|off)
show tcp auto-retry
set tcp connect-timeout
show tcp connect-timeout
These commands allow GDB to retry failed TCP connections to a remote stub
with a specified timeout period; this is useful if the stub is launched
in parallel with GDB but may not be ready to accept connections immediately.
set libthread-db-search-path
show libthread-db-search-path
Control list of directories which GDB will search for appropriate
libthread_db.
set schedule-multiple (on|off)
show schedule-multiple
Allow GDB to resume all threads of all processes or only threads of
the current process.
Implement TARGET_OBJECT_STACK_MEMORY. * NEWS: Add note on new "set stack-cache" option. * corefile.c (read_stack): New function. * dcache.c (dcache_struct): New member ptid. (dcache_enable_p): Mark as obsolete. (show_dcache_enabled_p): Flag option as deprecated. (dcache_invalidate): Update ptid. (dcache_invalidate_line): New function. (dcache_read_line): No longer check cacheable attribute, stack accesses get cached despite attribute. (dcache_init): Set ptid. (dcache_xfer_memory): Flush cache if from different ptid than before. Update cache after write. (dcache_update): New function. (dcache_info): Report ptid. (_initialize_dcache): Update text for `remotecache' to indicate it is obsolete. * dcache.h (dcache_update): Declare. * dwarf2loc.c (dwarf2_evaluate_loc_desc): Mark values on stack with set_value_stack. * frame-unwind.c (frame_unwind_got_memory): Ditto. * gdbcore.h (read_stack): Declare. * memattr.c (mem_enable_command): Call target_dcache_invalidate instead of dcache_invalidate. (mem_disable_command, mem_delete_command): Ditto. * target.c (stack_cache_enabled_p_1): New static global. (stack_cache_enabled_p): New static global. (set_stack_cache_enabled_p): New function. (show_stack_cache_enabled_p): New function. (target_dcache): Make static. (target_dcache_invalidate): New function. (target_load, target_resume): Call target_dcache_invalidate instead of dcache_invalidate. (memory_xfer_partial): New arg object, all callers updated. Check for existing inferior before calling dcache routines. When writing non-TARGET_OBJECT_STACK_MEMORY, notify dcache. (target_xfer_partial): Call memory_xfer_partial for TARGET_OBJECT_STACK_MEMORY. (target_read_stack): New function. (initialize_targets): Install new option `stack-cache'. * target.h: Remove #include of dcache.h. (enum target_object): New value TARGET_OBJECT_STACK_MEMORY. (target_dcache): Delete. (target_dcache_invalidate): Declare. (target_read_stack): Declare. * top.c (prepare_execute_command): New function. (execute_command): Call prepare_execute_command instead of free_all_values. * top.h (prepare_execute_command): Declare. * valops.c (get_value_at): New function. (value_at): Guts moved to get_value_at. (value_at_lazy): Similarly. (value_fetch_lazy): Call read_stack for stack values. * value.c (struct value): New member `stack'. (value_stack, set_value_stack): New functions. * value.h (value_stack, set_value_stack): Declare. * mi/mi-main.c (mi_cmd_execute): Call prepare_execute_command instead of free_all_values. doc/ * gdb.texinfo (Caching Data of Remote Targets): Update text. Mark `set/show remotecache' options as obsolete. Document new `set/show stack-cache' option. Update text for `info dcache'.
2009-08-31 22:18:46 +02:00
set stack-cache
show stack-cache
Use more aggressive caching for accesses to the stack. This improves
performance of remote debugging (particularly backtraces) without
affecting correctness.
set interactive-mode (on|off|auto)
show interactive-mode
Control whether GDB runs in interactive mode (on) or not (off).
When in interactive mode, GDB waits for the user to answer all
queries. Otherwise, GDB does not wait and assumes the default
answer. When set to auto (the default), GDB determines which
mode to use based on the stdin settings.
gdb/ 2009-07-02 Pedro Alves <pedro@codesourcery.com> * linux-nat.c (linux_child_follow_fork): If we're staying attached to the child process, enable event reporting on it. Don't handle checkpoints here. Instead, add the child fork to the lwp thread and inferior lists without clobbering the previous inferior. Let the thread_db layer learn about a new child process, even if following the parent. (linux_nat_switch_fork): Delete lwps of the current inferior only, instead of clearing the whole list. Use thread_change_ptid to give the core the illusion the new checkpoint is still the same inferior. Clear the register cache. (linux_handle_extended_wait): Handle checkpoints here. (linux_multi_process): Turn on. * linux-fork.c (struct fork_info) <pc>: Remove field. (init_fork_list): Do not delete the checkpoint from the inferior list (it is not there). (fork_load_infrun_state): Don't switch inferior_ptid here. Pass the new checkpoint's ptid to linux_nat_switch_fork. (fork_save_infrun_state): Make static. Don't stop the pc field of fork_info, it's gone. (linux_fork_mourn_inferior): Don't delete the checkpoint from the inferior list, it's not there. (linux_fork_detach): Ditto. (delete_fork_command): Replace mention of fork/checkpoint by checkpoint only. (detach_fork_command): Likewise. Don't delete the checkpoint from the inferior list. (info_forks_command): Adjust. (restore_detach_fork): Delete. (checkpointing_pid): New. (linux_fork_checkpointing_p): New. (save_detach_fork): Delete. (checkpoint_command): Delete temp_detach_fork. Don't remove breakpoints, that's a nop. Store the pid of the process we're checkpointing, and use make_cleanup_restore_integer to restore it. Don't reinsert breakpoints here. (process_command, fork_command): Delete. (restart_command): Update comments to only mention checkpoints, not forks. (_initialize_linux_fork): Delete "fork", "process", "info forks" commands. * linux-fork.h (fork_save_infrun_state, fork_list): Delete declarations. (linux_fork_checkpointing_p): Declare. * cli/cli-cmds.c (killlist): New. * cli/cli-cmds.h (killlist): Declare. * gdbcmd.h (killlist): Declare. * inferior.c: Include "gdbthread.h". (detach_inferior_command, kill_inferior_command) (inferior_command): New. (info_inferiors_command): Allow specifying a specific inferior id. (_initialize_inferiors): Register "inferior", "kill inferior" and "detach inferior" commands. * infcmd.c (_initialize_infcmd): Make "kill" a prefix command. * gdbthread.h (any_thread_of_process): Declare. * thread.c (any_thread_of_process): New. * NEWS: Mention multi-inferior debugging. Mention 'info inferiors', 'inferior', 'detach inferior' and 'kill inferior' as new commands. (Removed commands): New section, mentioning that 'info forks', 'fork', 'process', 'delete fork' and 'detach fork' are now gone. gdb/testsuite/ 2009-07-02 Pedro Alves <pedro@codesourcery.com> * gdb.base/multi-forks.exp: Only run detach-on-fork tests on linux. Adjust to use "inferior", "info inferiors", "detach inferior" and "kill inferior" instead of "restart", "info fork", "detach fork" and "delete fork". * gdb.base/ending-run.exp: Spell out "info". * gdb.base/help.exp: Adjust to use test_prefix_command_help for the "kill" command. gdb/doc/ 2009-07-02 Pedro Alves <pedro@codesourcery.com> * gdb.texinfo (Debugging multiple inferiors): Document the "inferior", "detach inferior" and "kill inferior" commands. (Debugging Programs with Multiple Processes): Adjust to mention generic "inferior" commands. Delete mention of "detach fork" and "delete fork". Cross reference to "Debugging multiple inferiors" section.
2009-07-02 23:57:28 +02:00
* Removed commands
info forks
For program forks, this is replaced by the new more generic `info
inferiors' command. To list checkpoints, you can still use the
`info checkpoints' command, which was an alias for the `info forks'
command.
fork NUM
Replaced by the new `inferior' command. To switch between
checkpoints, you can still use the `restart' command, which was an
alias for the `fork' command.
process PID
This is removed, since some targets don't have a notion of
processes. To switch between processes, you can still use the
`inferior' command using GDB's own inferior number.
delete fork NUM
For program forks, this is replaced by the new more generic `kill
inferior' command. To delete a checkpoint, you can still use the
`delete checkpoint' command, which was an alias for the `delete
fork' command.
detach fork NUM
For program forks, this is replaced by the new more generic `detach
inferior' command. To detach a checkpoint, you can still use the
`detach checkpoint' command, which was an alias for the `detach
fork' command.
* New native configurations
x86/x86_64 Darwin i[34567]86-*-darwin*
x86_64 MinGW x86_64-*-mingw*
* New targets
Lattice Mico32 lm32-*
x86 DICOS i[34567]86-*-dicos*
x86_64 DICOS x86_64-*-dicos*
S+core 3 score-*-*
* The GDB remote stub, gdbserver, now supports x86 Windows CE
(mingw32ce) debugging.
* Removed commands
catch load
catch unload
These commands were actually not implemented on any target.
*** Changes in GDB 6.8
* New native configurations
NetBSD/hppa hppa*-*netbsd*
2008-02-11 Maxim Grigoriev <maxim2405@gmail.com> * NEWS (New native configurations): Xtensa GNU/Linux. (New targets): Xtensa GNU/Linux. * Makefile.in (ALL_TARGET_OBS): Add xtensa-linux-nat.o and xtensa-linux-tdep.o (ALLDEPFILES): Add xtensa-linux-tdep.c and xtensa-linux-nat.c (xtensa-linux-nat.o, xtensa-linux-tdep.o): New dependencies. * configure.tgt (xtensa*-*-linux*): New entry. * xtensa-config.c (xtensa_tdep): New variable. (xtensa_config_byte_order, xtensa_config_tdep): Removed. (rmap): Change format based on new macro XTREG. (XTENSA_CONFIG_INSTANTIATE): Use new macro defined in xtensa-tdep.h. * xtensa-linux-nat.c: New. * xtensa-linux-tdep.c: New. * xtensa-xtregs.c: New. * xtensa-tdep.h (xtensa_elf_gregset_t): Update. (XTENSA_ELF_NGREG, XTREG, XTREG_END, XTENSA_GDBARCH_TDEP_INSTANTIATE) (XCHAL_NUM_CONTEXTS, XCHAL_HAVE_EXCEPTIONS): New macros. (xtensa_register_t): New field coprocessor. (XTENSA_REGISTER_FLAGS_PRIVILEGED): Name spelling corrected. * xtensa-tdep.c (xtensa_config_tdep, xtensa_config_byte_order): Removed. (xtensa_pseudo_register_read, xtensa_pseudo_register_write): Update to handle privileged registers. (xtensa_supply_gregset) Remove exccause and excvaddr registers. (xtensa_push_dummy_call): Set windowstart register correctly. (call0_analyze_prologue): Initialize xtensa_default_isa. (xtensa_derive_tdep): New. (xtensa_gdbarch_init): Get rid of xtensa_config_byte_order and xtensa_config_tdep, use XCHAL_HAVE_BE and xtensa_tdep instead. Call xtensa_derive_tdep(). * config/xtensa/linux.mh: New. * regformats/reg-xtensa.dat: New.
2008-02-11 22:58:41 +01:00
Xtensa GNU/Linux xtensa*-*-linux*
* New targets
NetBSD/hppa hppa*-*-netbsd*
2008-02-11 Maxim Grigoriev <maxim2405@gmail.com> * NEWS (New native configurations): Xtensa GNU/Linux. (New targets): Xtensa GNU/Linux. * Makefile.in (ALL_TARGET_OBS): Add xtensa-linux-nat.o and xtensa-linux-tdep.o (ALLDEPFILES): Add xtensa-linux-tdep.c and xtensa-linux-nat.c (xtensa-linux-nat.o, xtensa-linux-tdep.o): New dependencies. * configure.tgt (xtensa*-*-linux*): New entry. * xtensa-config.c (xtensa_tdep): New variable. (xtensa_config_byte_order, xtensa_config_tdep): Removed. (rmap): Change format based on new macro XTREG. (XTENSA_CONFIG_INSTANTIATE): Use new macro defined in xtensa-tdep.h. * xtensa-linux-nat.c: New. * xtensa-linux-tdep.c: New. * xtensa-xtregs.c: New. * xtensa-tdep.h (xtensa_elf_gregset_t): Update. (XTENSA_ELF_NGREG, XTREG, XTREG_END, XTENSA_GDBARCH_TDEP_INSTANTIATE) (XCHAL_NUM_CONTEXTS, XCHAL_HAVE_EXCEPTIONS): New macros. (xtensa_register_t): New field coprocessor. (XTENSA_REGISTER_FLAGS_PRIVILEGED): Name spelling corrected. * xtensa-tdep.c (xtensa_config_tdep, xtensa_config_byte_order): Removed. (xtensa_pseudo_register_read, xtensa_pseudo_register_write): Update to handle privileged registers. (xtensa_supply_gregset) Remove exccause and excvaddr registers. (xtensa_push_dummy_call): Set windowstart register correctly. (call0_analyze_prologue): Initialize xtensa_default_isa. (xtensa_derive_tdep): New. (xtensa_gdbarch_init): Get rid of xtensa_config_byte_order and xtensa_config_tdep, use XCHAL_HAVE_BE and xtensa_tdep instead. Call xtensa_derive_tdep(). * config/xtensa/linux.mh: New. * regformats/reg-xtensa.dat: New.
2008-02-11 22:58:41 +01:00
Xtensa GNU/Lunux xtensa*-*-linux*
* Change in command line behavior -- corefiles vs. process ids.
When the '-p NUMBER' or '--pid NUMBER' options are used, and
attaching to process NUMBER fails, GDB no longer attempts to open a
core file named NUMBER. Attaching to a program using the -c option
is no longer supported. Instead, use the '-p' or '--pid' options.
* GDB can now be built as a native debugger for debugging Windows x86
(mingw32) Portable Executable (PE) programs.
* Pending breakpoints no longer change their number when their address
is resolved.
* GDB now supports breakpoints with multiple locations,
including breakpoints on C++ constructors, inside C++ templates,
and in inlined functions.
* GDB's ability to debug optimized code has been improved. GDB more
accurately identifies function bodies and lexical blocks that occupy
more than one contiguous range of addresses.
* NEWS: Document target described register support for PowerPC. * ppc-tdep.h: Remove ppc_spr constants. (struct gdbarch_tdep): Remove regs, ppc_sr0_regnum, and ppc_builtin_type_vec128 members. (PPC_R0_REGNUM, PPC_F0_REGNUM, PPC_PC_REGNUM, PPC_MSR_REGNUM) (PPC_CR_REGNUM, PPC_LR_REGNUM, PPC_CTR_REGNUM, PPC_XER_REGNUM) (PPC_FPSCR_REGNUM, PPC_MQ_REGNUM, PPC_SPE_UPPER_GP0_REGNUM) (PPC_SPE_ACC_REGNUM, PPC_SPE_FSCR_REGNUM, PPC_VR0_REGNUM) (PPC_VSCR_REGNUM, PPC_VRSAVE_REGNUM, PPC_NUM_REGS): New constants. * rs6000-tdep.c: Include preparsed descriptions. (init_sim_regno_table): Do not iterate over pseudo registers. Look up segment registers by name. Use sim_spr_register_name for SPRs. (rs6000_register_sim_regno): Call init_sim_regno_table here. (rs6000_builtin_type_vec128): Delete. (rs6000_register_name): Only handle SPE pseudo registers and upper halves. Call tdesc_register_name for everything else. (rs6000_register_type): Delete. Replace with... (rs6000_pseudo_register_type): ...this new function. Only handle SPE pseudo registers. (rs6000_register_reggroup_p): Delete. Replace with... (rs6000_pseudo_register_reggroup_p): ...this new function. Only handle SPE pseudo registers. (rs6000_convert_register_p): Use ppc_fp0_regnum instead of "struct reg". (rs6000_register_to_value, rs6000_value_to_register): Remove check of reg->fpr. (e500_register_reggroup_p): Delete. (STR, R, R4, R8, R16, F, P8, R32, R64, R0, A4, S, S4, SN4, S64) (COMMON_UISA_REGS, PPC_UISA_SPRS, PPC_UISA_NOFP_SPRS) (PPC_SEGMENT_REGS, PPC_OEA_SPRS, PPC_ALTIVEC_REGS, PPC_SPE_GP_REGS) (PPC_SPE_UPPER_GP_REGS, PPC_EV_PSEUDO_REGS): Delete macros. (registers_powerpc, registers_403, registers_403GC, registers_505) (registers_860, registers_601, registers_602, registers_603) (registers_604, registers_750, registers_7400, registers_e500): Delete variables. (struct variant): Delete nregs, npregs, num_tot_regs, and regs. Add tdesc. (tot_num_registers, num_registers, num_pseudo_registers): Delete. (variants): Delete outdated comment. Use standard target descriptions instead of "struct reg" arrays. (init_variants): Delete. (rs6000_gdbarch_init): Do not guess word size from the BFD architecture if we have a target description. Select a variant before creating a new architecture. Use the variant's target description if the target did not define a register layout. Validate target-supplied registers. Reject mismatches. Use fixed register numbers and new constants instead of magic numbers. Call set_gdbarch_ps_regnum. Call tdesc_use_registers. (_initialize_rs6000_tdep): Initialize the preparsed target descriptions. * target-descriptions.c (tdesc_predefined_types): Add int128 and uint128. (tdesc_find_register_early): New function. (tdesc_numbered_register): Use it. (tdesc_register_size): New function. (tdesc_use_registers): Take a target_desc argument. Do not use gdbarch_target_desc. * target-descriptions.h (tdesc_use_registers): Update prototype and comment. (tdesc_register_size): New prototype. * Makefile.in (powerpc_32_c, powerpc_403_c, powerpc_403gc_c) (powerpc_505_c, powerpc_601_c, powerpc_602_c, powerpc_603_c) (powerpc_604_c, powerpc_64_c, powerpc_7400_c, powerpc_750_c) (powerpc_860_c, powerpc_e500_c, rs6000_c): New macros. (rs6000-tdep.o): Update. * arm-tdep.c (arm_gdbarch_init): Update call to tdesc_use_registers. * m68k-tdep.c (m68k_gdbarch_init): Likewise. * mips-tdep.c (mips_gdbarch_init): Likewise. * gdb.texinfo (Predefined Target Types): Add int128 and uint128. (Standard Target Features): Add PowerPC features. * gdb.xml/tdesc-regs.exp: Add PowerPC support. * sim-ppc.h (sim_spr_register_name): New prototype. * gdb-sim.c (regnum2spr): Rename to... (sim_spr_register_name): ... this. Make global.
2007-10-15 21:45:31 +02:00
* Target descriptions can now describe registers for PowerPC.
* The GDB remote stub, gdbserver, now supports the AltiVec and SPE
registers on PowerPC targets.
* The GDB remote stub, gdbserver, now supports thread debugging on GNU/Linux
targets even when the libthread_db library is not available.
* remote.c (remote_cmdlist): New variable. (PACKET_vFile_open, PACKET_vFile_pread, PACKET_vFile_pwrite) (PACKET_vFile_close, PACKET_vFile_unlink): New constants. (remote_buffer_add_string, remote_buffer_add_bytes) (remote_buffer_add_int, remote_hostio_parse_result) (remote_hostio_send_command, remote_hostio_open, remote_hostio_pwrite) (remote_hostio_pread, remote_hostio_close, remote_hostio_unlink) (remote_fileio_errno_to_host, remote_hostio_error, fclose_cleanup) (remote_hostio_close_cleanup, remote_file_put, remote_file_get) (remote_file_delete, remote_put_command, remote_get_command) (remote_delete_command, remote_command): New functions. (_initialize_remote): Register new packets and commands. * Makefile.in (gdb_fileio_h): New variable. (remote.o): Update. (SUBDIR_MI_OBS): Add mi-cmd-target.o. (SUBDIR_MI_SRCS): Add mi/mi-cmd-target.c. (mi-cmd-target.o): New rule. * mi/mi-cmd-target.c: New file. * mi/mi-cmds.c (mi_cmds): Add target-file-delete, target-file-get, and target-file-put. * mi/mi-cmds.h (mi_cmd_target_file_get, mi_cmd_target_file_put) (mi_cmd_target_file_delete): Declare. * remote.h (remote_file_put, remote_file_get, remote_file_delete): Declare. * NEWS: Describe new file transfer support. * gdb.texinfo (Debugging Programs with Multiple Processes): Correct formatting. (Remote Debugging): Add File Transfer section. (Remote Configuration): Document Host I/O packets. (GDB/MI): Add GDB/MI File Transfer Commands section. (Remote Protocol): Add Host I/O Packets section. (Packets): Add vFile. * Makefile.in (OBS): Add hostio.o. (hostio.o): New rule. * server.h (handle_vFile): Declare. * hostio.c: New file. * server.c (handle_v_requests): Take packet_len and new_packet_len for binary packets. Call handle_vFile. (main): Update call to handle_v_requests. * gdb.server/file-transfer.exp, gdb.server/transfer.txt, gdb.mi/mi-file-transfer.exp: New.
2007-11-30 22:50:19 +01:00
* The GDB remote stub, gdbserver, now supports the new file transfer
commands (remote put, remote get, and remote delete).
* linux-low.c (linux_attach_lwp): Do not _exit after errors. (linux_kill, linux_detach): Clean up the process list. * remote-utils.c (remote_open): Improve port number parsing. (putpkt_binary, input_interrupt): Only send interrupts if the target is running. * server.c (extended_protocol): Make static. (attached): Define earlier. (exit_requested, response_needed, program_argv): New variables. (target_running): New. (start_inferior): Clear attached here. (attach_inferior): Set attached here. (require_running): Define. (handle_query): Use require_running and target_running. Implement "monitor exit". (handle_v_attach, handle_v_run): New. (handle_v_requests): Use require_running. Handle vAttach and vRun. (gdbserver_usage): Update. (main): Redo argument parsing. Handle --debug and --multi. Handle --attach along with other options or after the port. Save program_argv. Support no initial program. Resynchronize communication with GDB after an error. Handle "monitor exit". Use require_running and target_running. Always allow the extended protocol. Do not error out for Hc0 or Hc-1. Do not automatically restart in extended mode. * README: Refer to the GDB manual. Update --attach usage. * remote.c (struct remote_state): Add cached_wait_status. (remote_exec_file): New variable. (PACKET_vAttach, PACKET_vRun): New constants. (extended_remote_restart): Do not query for status. (struct start_remote_args): New. (remote_start_remote): Take it as a second argument. Check whether the target is running. Issue an error for non-running non-extended targets. Cache the wait status. Set inferior_ptid here. (remote_open_1): Prompt to disconnect non-running targets. Make sure the target is marked running. Do not set inferior_ptid here. Update call to remote_start_remote. Do not call remote_check_symbols if the target is not running. (remote_detach_1): Rename from remote_detach. Take an EXTENDED argument. Handle a non-running target. (remote_detach): Use it. (extended_remote_detach): New. (remote_disconnect): Fix typo. Use remoute_mourn_1. (extended_remote_attach_1, extended_remote_attach) (extended_async_remote_attach): New. (remote_vcont_resume): Remove unused variable. (remote_wait, remote_async_wait): Use any cached wait status. (putpkt_binary, getpkt): Clear any cached wait status. (extended_remoute_mourn_1): New. (extended_remote_mourn): Use it. (extended_async_remote_mourn, extended_remote_run): New. (extended_remote_create_inferior_1): New. (extended_remote_create_inferior): Use it. (extended_remote_async_create_inferior): Likewise. (remote_xfer_partial): Skip for non-executing targets. (init_extended_remote_ops): Set to_detach and to_attach. (init_extended_async_remote_ops): Likewise. Use extended_async_remote_mourn. (_initialize_remote): Register vAttach, vRun, and set remote exec-file. * NEWS: Mention vAttach, vRun, and gdbserver extended-remote support. * gdb.server/ext-attach.c, gdb.server/ext-attach.exp, gdb.server/ext-run.exp: New files. * lib/gdbserver-support.exp (gdbserver_download): New. (gdbserver_start): New. Update gdbserver expected output. (gdbserver_spawn): Use them. (gdbserver_start_extended): New. * gdb.texinfo (Using the `gdbserver' Program): Add security warning. Rearrange into subsections and subsubsections. Document --multi and --debug. Correct --with-sysroot typo. Update --attach usage. Make load reference clearer. Document monitor exit. (Remote Configuration): Document set remote exec-file, attach-packet, and run-packet. (Packets): Document vAttach and vRun.
2008-01-30 01:51:50 +01:00
* The GDB remote stub, gdbserver, now supports run and attach in
extended-remote mode.
* hppa*64*-*-hpux11* target broken
The debugger is unable to start a program and fails with the following
error: "Error trying to get information about dynamic linker".
The gdb-6.7 release is also affected.
* GDB now supports the --enable-targets= configure option to allow
building a single GDB executable that supports multiple remote
target architectures.
* GDB now supports debugging C and C++ programs which use the
Decimal Floating Point extension. In addition, the PowerPC target
now has a set of pseudo-registers to inspect decimal float values
stored in two consecutive float registers.
* The -break-insert MI command can optionally create pending
breakpoints now.
* Improved support for debugging Ada
Many improvements to the Ada language support have been made. These
include:
- Better support for Ada2005 interface types
- Improved handling of arrays and slices in general
- Better support for Taft-amendment types
- The '{type} ADDRESS' expression is now allowed on the left hand-side
of an assignment
- Improved command completion in Ada
- Several bug fixes
* GDB on GNU/Linux and HP/UX can now debug through "exec" of a new
process.
* remote.c (remote_cmdlist): New variable. (PACKET_vFile_open, PACKET_vFile_pread, PACKET_vFile_pwrite) (PACKET_vFile_close, PACKET_vFile_unlink): New constants. (remote_buffer_add_string, remote_buffer_add_bytes) (remote_buffer_add_int, remote_hostio_parse_result) (remote_hostio_send_command, remote_hostio_open, remote_hostio_pwrite) (remote_hostio_pread, remote_hostio_close, remote_hostio_unlink) (remote_fileio_errno_to_host, remote_hostio_error, fclose_cleanup) (remote_hostio_close_cleanup, remote_file_put, remote_file_get) (remote_file_delete, remote_put_command, remote_get_command) (remote_delete_command, remote_command): New functions. (_initialize_remote): Register new packets and commands. * Makefile.in (gdb_fileio_h): New variable. (remote.o): Update. (SUBDIR_MI_OBS): Add mi-cmd-target.o. (SUBDIR_MI_SRCS): Add mi/mi-cmd-target.c. (mi-cmd-target.o): New rule. * mi/mi-cmd-target.c: New file. * mi/mi-cmds.c (mi_cmds): Add target-file-delete, target-file-get, and target-file-put. * mi/mi-cmds.h (mi_cmd_target_file_get, mi_cmd_target_file_put) (mi_cmd_target_file_delete): Declare. * remote.h (remote_file_put, remote_file_get, remote_file_delete): Declare. * NEWS: Describe new file transfer support. * gdb.texinfo (Debugging Programs with Multiple Processes): Correct formatting. (Remote Debugging): Add File Transfer section. (Remote Configuration): Document Host I/O packets. (GDB/MI): Add GDB/MI File Transfer Commands section. (Remote Protocol): Add Host I/O Packets section. (Packets): Add vFile. * Makefile.in (OBS): Add hostio.o. (hostio.o): New rule. * server.h (handle_vFile): Declare. * hostio.c: New file. * server.c (handle_v_requests): Take packet_len and new_packet_len for binary packets. Call handle_vFile. (main): Update call to handle_v_requests. * gdb.server/file-transfer.exp, gdb.server/transfer.txt, gdb.mi/mi-file-transfer.exp: New.
2007-11-30 22:50:19 +01:00
* New commands
set print frame-arguments (all|scalars|none)
show print frame-arguments
The value of this variable can be changed to control which argument
values should be printed by the debugger when displaying a frame.
* remote.c (remote_cmdlist): New variable. (PACKET_vFile_open, PACKET_vFile_pread, PACKET_vFile_pwrite) (PACKET_vFile_close, PACKET_vFile_unlink): New constants. (remote_buffer_add_string, remote_buffer_add_bytes) (remote_buffer_add_int, remote_hostio_parse_result) (remote_hostio_send_command, remote_hostio_open, remote_hostio_pwrite) (remote_hostio_pread, remote_hostio_close, remote_hostio_unlink) (remote_fileio_errno_to_host, remote_hostio_error, fclose_cleanup) (remote_hostio_close_cleanup, remote_file_put, remote_file_get) (remote_file_delete, remote_put_command, remote_get_command) (remote_delete_command, remote_command): New functions. (_initialize_remote): Register new packets and commands. * Makefile.in (gdb_fileio_h): New variable. (remote.o): Update. (SUBDIR_MI_OBS): Add mi-cmd-target.o. (SUBDIR_MI_SRCS): Add mi/mi-cmd-target.c. (mi-cmd-target.o): New rule. * mi/mi-cmd-target.c: New file. * mi/mi-cmds.c (mi_cmds): Add target-file-delete, target-file-get, and target-file-put. * mi/mi-cmds.h (mi_cmd_target_file_get, mi_cmd_target_file_put) (mi_cmd_target_file_delete): Declare. * remote.h (remote_file_put, remote_file_get, remote_file_delete): Declare. * NEWS: Describe new file transfer support. * gdb.texinfo (Debugging Programs with Multiple Processes): Correct formatting. (Remote Debugging): Add File Transfer section. (Remote Configuration): Document Host I/O packets. (GDB/MI): Add GDB/MI File Transfer Commands section. (Remote Protocol): Add Host I/O Packets section. (Packets): Add vFile. * Makefile.in (OBS): Add hostio.o. (hostio.o): New rule. * server.h (handle_vFile): Declare. * hostio.c: New file. * server.c (handle_v_requests): Take packet_len and new_packet_len for binary packets. Call handle_vFile. (main): Update call to handle_v_requests. * gdb.server/file-transfer.exp, gdb.server/transfer.txt, gdb.mi/mi-file-transfer.exp: New.
2007-11-30 22:50:19 +01:00
remote put
remote get
remote delete
Transfer files to and from a remote target, and delete remote files.
* New MI commands
-target-file-put
-target-file-get
-target-file-delete
Transfer files to and from a remote target, and delete remote files.
* New remote packets
vFile:open:
vFile:close:
vFile:pread:
vFile:pwrite:
vFile:unlink:
Open, close, read, write, and delete files on the remote system.
* linux-low.c (linux_attach_lwp): Do not _exit after errors. (linux_kill, linux_detach): Clean up the process list. * remote-utils.c (remote_open): Improve port number parsing. (putpkt_binary, input_interrupt): Only send interrupts if the target is running. * server.c (extended_protocol): Make static. (attached): Define earlier. (exit_requested, response_needed, program_argv): New variables. (target_running): New. (start_inferior): Clear attached here. (attach_inferior): Set attached here. (require_running): Define. (handle_query): Use require_running and target_running. Implement "monitor exit". (handle_v_attach, handle_v_run): New. (handle_v_requests): Use require_running. Handle vAttach and vRun. (gdbserver_usage): Update. (main): Redo argument parsing. Handle --debug and --multi. Handle --attach along with other options or after the port. Save program_argv. Support no initial program. Resynchronize communication with GDB after an error. Handle "monitor exit". Use require_running and target_running. Always allow the extended protocol. Do not error out for Hc0 or Hc-1. Do not automatically restart in extended mode. * README: Refer to the GDB manual. Update --attach usage. * remote.c (struct remote_state): Add cached_wait_status. (remote_exec_file): New variable. (PACKET_vAttach, PACKET_vRun): New constants. (extended_remote_restart): Do not query for status. (struct start_remote_args): New. (remote_start_remote): Take it as a second argument. Check whether the target is running. Issue an error for non-running non-extended targets. Cache the wait status. Set inferior_ptid here. (remote_open_1): Prompt to disconnect non-running targets. Make sure the target is marked running. Do not set inferior_ptid here. Update call to remote_start_remote. Do not call remote_check_symbols if the target is not running. (remote_detach_1): Rename from remote_detach. Take an EXTENDED argument. Handle a non-running target. (remote_detach): Use it. (extended_remote_detach): New. (remote_disconnect): Fix typo. Use remoute_mourn_1. (extended_remote_attach_1, extended_remote_attach) (extended_async_remote_attach): New. (remote_vcont_resume): Remove unused variable. (remote_wait, remote_async_wait): Use any cached wait status. (putpkt_binary, getpkt): Clear any cached wait status. (extended_remoute_mourn_1): New. (extended_remote_mourn): Use it. (extended_async_remote_mourn, extended_remote_run): New. (extended_remote_create_inferior_1): New. (extended_remote_create_inferior): Use it. (extended_remote_async_create_inferior): Likewise. (remote_xfer_partial): Skip for non-executing targets. (init_extended_remote_ops): Set to_detach and to_attach. (init_extended_async_remote_ops): Likewise. Use extended_async_remote_mourn. (_initialize_remote): Register vAttach, vRun, and set remote exec-file. * NEWS: Mention vAttach, vRun, and gdbserver extended-remote support. * gdb.server/ext-attach.c, gdb.server/ext-attach.exp, gdb.server/ext-run.exp: New files. * lib/gdbserver-support.exp (gdbserver_download): New. (gdbserver_start): New. Update gdbserver expected output. (gdbserver_spawn): Use them. (gdbserver_start_extended): New. * gdb.texinfo (Using the `gdbserver' Program): Add security warning. Rearrange into subsections and subsubsections. Document --multi and --debug. Correct --with-sysroot typo. Update --attach usage. Make load reference clearer. Document monitor exit. (Remote Configuration): Document set remote exec-file, attach-packet, and run-packet. (Packets): Document vAttach and vRun.
2008-01-30 01:51:50 +01:00
vAttach
Attach to an existing process on the remote system, in extended-remote
mode.
vRun
Run a new process on the remote system, in extended-remote mode.
*** Changes in GDB 6.7
* Resolved 101 resource leaks, null pointer dereferences, etc. in gdb,
bfd, libiberty and opcodes, as revealed by static analysis donated by
Coverity, Inc. (http://scan.coverity.com).
* When looking up multiply-defined global symbols, GDB will now prefer the
symbol definition in the current shared library if it was built using the
-Bsymbolic linker option.
* When the Text User Interface (TUI) is not configured, GDB will now
recognize the -tui command-line option and print a message that the TUI
is not supported.
* The GDB remote stub, gdbserver, now has lower overhead for high
frequency signals (e.g. SIGALRM) via the QPassSignals packet.
* GDB for MIPS targets now autodetects whether a remote target provides
32-bit or 64-bit register values.
* NEWS: Mention pointer to member improvements. * Makefile.in (gnu-v3-abi.o): Delete special rule. (eval.o, gnu-v3-abi.o, ia64-tdep.o): Update. * ada-valprint.c (ada_print_scalar): Update for new type codes. * c-typeprint.c (c_print_type): Update for new type codes. (c_type_print_varspec_prefix, c_type_print_varspec_suffix) (c_type_print_base): Likewise. (c_type_print_args): Rewrite. * c-valprint.c (c_val_print): Update for new type codes. Remove support for references to members. Treat methods like functions. * cp-abi.c (cplus_print_method_ptr, cplus_method_ptr_size) (cplus_make_method_ptr, cplus_method_ptr_to_value): New. * cp-abi.h (cplus_print_method_ptr, cplus_method_ptr_size) (cplus_make_method_ptr, cplus_method_ptr_to_value): New prototypes. (struct cp_abi_ops): Add corresponding members. * cp-valprint.c (cp_print_class_method): Delete. (cp_find_class_member): New function. (cp_print_class_member): Use it. Simplify support for bogus member pointers. * dwarf2read.c (quirk_gcc_member_function_pointer): Use lookup_methodptr_type. (read_tag_ptr_to_member_type): Likewise, and lookup_memberptr_type. * eval.c (evaluate_subexp_standard): Implement EVAL_SKIP for OP_SCOPE. Update call to value_aggregate_elt. Rewrite member pointer support. (evaluate_subexp_for_address): Handle OP_SCOPE explicitly. Handle references returned by user defined operators. * f-typeprint.c (f_print_type, f_type_print_varspec_prefix) (f_type_print_varspec_suffix): Remove support for member pointers. * gdbtypes.c (lookup_memberptr_type): Renamed from lookup_member_type and adjusted. (smash_to_memberptr_type): Likewise, from smash_to_member_type. (lookup_methodptr_type): New. (rank_one_type): Adjust for TYPE_CODE_MEMBERPTR. (recursive_dump_type): Update for new types. * gdbtypes.h (enum type_code): Replace TYPE_CODE_MEMBER with TYPE_CODE_MEMBERPTR and TYPE_CODE_METHODPTR. (lookup_memberptr_type, lookup_methodptr_type) (smash_to_memberptr_type): New prototypes. (smash_to_method_type): Formatting fix. (lookup_member_type, smash_to_member_type): Delete prototypes. * gnu-v3-abi.c (gnuv3_get_vtable, gnuv3_get_virtual_fn): New. Do not rely on debug information for the vptr or the method's enclosing type. Handle function descriptors for IA64. (gnuv3_virtual_fn_field): Rewrite using the new functions. (gnuv3_find_method_in, gnuv3_print_method_ptr) (gnuv3_method_ptr_size, gnuv3_make_method_ptr) (gnuv3_method_ptr_to_value): New. (init_gnuv3_ops): Set new members of gnu_v3_abi_ops. * hpread.c (hpread_type_lookup): Update for new types. * infcall.c (value_arg_coerce): Likewise. * m2-typeprint.c (m2_print_type): Remove explicit support for member pointers. * m2-valprint.c (m2_val_print): Likewise. * p-typeprint.c (pascal_type_print_varspec_prefix) (pascal_type_print_varspec_suffix, pascal_type_print_base): Likewise. * p-valprint.c (pascal_val_print): Likewise. (pascal_object_print_class_method, pascal_object_print_class_member): Delete. * p-lang.h (pascal_object_print_class_method) (pascal_object_print_class_member): Delete prototypes. * stabsread.c (read_type): Update for new types. * typeprint.c (print_type_scalar): Likewise. * valops.c (value_struct_elt_for_reference, value_namespace_elt) (value_maybe_namespace_elt, value_aggregate_elt): Add want_address argument. Construct a pointer to member if the address of a function or data member is requested. (value_cast_pointers): Don't modify the input value. (value_cast): Adjust pointer to member handling for new types. Allow null pointer to member constants. Don't modify the input value. (value_ind): Remove pointer to member check. Handle function descriptors for function pointers. (value_struct_elt, value_find_oload_method_list, check_field): Remove pointer to member checks. * value.c (unpack_long): Allow pointers to data members. (value_from_longest): Allow member pointers. * value.h (value_aggregate_elt): Add want_address. * varobj.c (c_variable_editable): Remove check for members. * gdbarch.sh: Add vtable_function_descriptors and vbit_in_delta. * ia64-tdep.c (ia64_convert_from_func_ptr_addr): Handle descriptors in virtual tables. (ia64_gdbarch_init): Call set_gdbarch_vtable_function_descriptors. * c-lang.h (cp_print_class_method): Delete prototype. * arm-tdep.c (arm_gdbarch_init): Call set_gdbarch_vbit_in_delta. * mips-tdep.c (mips_gdbarch_init): Likewise. * gdbarch.c, gdbarch.h: Regenerated. * gdb.cp/classes.exp (test_pointers_to_class_members): Update expected output. Test the types of members and member pointers. * gdb.cp/inherit.exp (test_print_mi_member_types): Remove KFAILs for gdb/2092. * gdb.cp/member-ptr.exp: Search for a comment instead of a statement. Enable for GCC. Update expected output for some tests and add new tests. Remove obsolete GCC KFAILs. Allow GCC's class layout. * gdb.cp/member-ptr.cc (Padding, Padding::vspacer, Base, Base::get_x) (Base::vget_base, Left, Left::vget, Right, Right::vget, Diamond) (Diamond::vget_base): New. (main): Add new tests. * gdb.cp/printmethod.exp: Update expected output for member functions. * gdb.cp/virtfunc.exp (test_virtual_calls): Add a KFAIL for print pEe->D::vg().
2007-01-03 19:05:45 +01:00
* Support for C++ member pointers has been improved.
XML feature description support. * NEWS: Mention target descriptions, "set tdesc filename", "unset tdesc filename", "show tdesc filename", and qXfer:features:read. * arch-utils.c (choose_architecture_for_target): New function. (gdbarch_info_fill): Call it. * target-descriptions.c (struct property): Make members non-const. (struct target_desc): Add arch member. (target_description_filename): New variable. (target_find_description): Try via XML first. (tdesc_architecture): New. (free_target_description, make_cleanup_free_target_description): New. (set_tdesc_property): Call xstrdup. (set_tdesc_architecture, tdesc_set_cmdlist, tdesc_show_cmdlist) (tdesc_unset_cmdlist, unset_tdesc_cmd, unset_tdesc_filename_cmd) (set_tdesc_cmd, show_tdesc_cmd, set_tdesc_filename_cmd) (show_tdesc_filename_cmd, _initialize_target_descriptions): New. * target-descriptions.h (tdesc_architecture) (make_cleanup_free_target_description, set_tdesc_architecture): New prototypes. * Makefile.in (SFILES): Add xml-tdesc.c. (COMMON_OBS): Add xml-tdesc.o. (target-descriptions.o): Update. (xml-tdesc.o): New rule. * xml-tdesc.c, xml-tdesc.h: New files. * remote.c (PACKET_qXfer_features): New enum. (remote_protocol_features): Add qXfer:features:read. (remote_xfer_partial): Handle TARGET_OBJECT_AVAILABLE_FEATURES. (_initialize_remote): Register qXfer:features:read. * target.h (enum target_object): Add TARGET_OBJECT_AVAILABLE_FEATURES. * features/gdb-target.dtd: New file. * linux-i386-low.c (the_low_target): Set arch_string. * linux-x86-64-low.c (the_low_target): Likewise. * linux-low.c (linux_arch_string): New. (linux_target_ops): Add it. * linux-low.h (struct linux_target_ops): Add arch_string. * server.c (write_qxfer_response): Use const void * for DATA. (get_features_xml): New. (handle_query): Handle qXfer:features:read. Report it for qSupported. * target.h (struct target_ops): Add arch_string method. * gdb.texinfo (Target Descriptions): New section. (General Query Packets): Add QPassSignals anchor. Mention qXfer:features:read under qSupported. Expand mentions of qXfer:memory-map:read and QPassSignals. Document qXfer:features:read.
2007-01-09 23:55:10 +01:00
* GDB now understands XML target descriptions, which specify the
target's overall architecture. GDB can read a description from
a local file or over the remote serial protocol.
* Vectors of single-byte data use a new integer type which is not
automatically displayed as character or string data.
* The /s format now works with the print command. It displays
arrays of single-byte integers and pointers to single-byte integers
as strings.
* Makefile.in (arm-tdep.o, eval.o, target-descriptions.o) (xml-tdesc.o): Update. * xml-support.c: Add a comment. (gdb_xml_enums_boolean): New variable. (gdb_xml_parse_attr_enum): Use strcasecmp. * xml-support.h (gdb_xml_enums_boolean): Declare. * xml-tdesc.c (struct tdesc_parsing_data): Record current_feature, next_regnum, and current_union. (tdesc_start_feature, tdesc_start_reg, tdesc_start_union) (tdesc_end_union, tdesc_start_field, tdesc_start_vector) (field_attributes, union_children, reg_attributes, union_attributes) (vector_attributes, feature_attributes, feature_children): New. (target_children): Make static. Add <feature>. (tdesc_elements): Make static. * target-descriptions.c (struct tdesc_reg, tdesc_reg_p, type_p) (struct tdesc_feature, tdesc_feature_p): New types. (struct target_desc): Add features member. (struct tdesc_arch_data, tdesc_data): New. (target_find_description): Clarify error message. Warn about ignored register descriptions. (tdesc_has_registers, tdesc_find_feature, tdesc_feature_name) (tdesc_named_type, tdesc_data_init, tdesc_data_alloc) (tdesc_data_cleanup, tdesc_numbered_register) (tdesc_numbered_register_choices, tdesc_find_register) (tdesc_register_name, tdesc_register_type) (tdesc_remote_register_number, tdesc_register_reggroup_p) (set_tdesc_pseudo_register_name, set_tdesc_pseudo_register_type) (set_tdesc_pseudo_register_reggroup_p, tdesc_use_registers) (tdesc_free_reg, tdesc_create_reg, tdesc_free_feature) (tdesc_create_feature, tdesc_record_type): New. (free_target_description): Free features. (_initialize_target_descriptions): Initialize tdesc_data. * arch-utils.c (default_remote_register_number): New. * arch-utils.h (default_remote_register_number): New prototype. * target-descriptions.h (set_tdesc_pseudo_register_name) (set_tdesc_pseudo_register_type, set_tdesc_pseudo_register_reggroup_p) (tdesc_use_registers, tdesc_data_alloc, tdesc_data_cleanup) (tdesc_numbered_register, tdesc_numbered_register_choices) (tdesc_has_registers, tdesc_find_feature, tdesc_feature_name) (tdesc_named_type, tdesc_create_feature, tdesc_record_type) (tdesc_create_reg): Declare. * gdbarch.sh (remote_register_number): New entry. * gdbarch.c, gdbarch.h: Regenerate. * remote.c (init_remote_state): Use gdbarch_remote_register_number. * features/gdb-target.dtd: Add feature, reg, vector, union, and field. * arm-tdep.c (arm_register_aliases): New. (arm_register_name_strings): Rename to... (arm_register_names): ...this. Make const. Delete the old version. (current_option, arm_register_byte): Delete. (set_disassembly_style): Simplify. Do not adjust arm_register_names. (value_of_arm_user_reg): New. (arm_gdbarch_init): Verify any described registers. Call tdesc_use_registers. Don't use arm_register_byte. Create aliases for standard register names. (_initialize_arm_tdep): Do not adjust arm_register_names. * user-regs.c (struct user_reg): Add baton member. (append_user_reg, user_reg_add_builtin, user_regs_init) (user_reg_add, value_of_user_reg): Use a baton for user register functions. * std-regs.c: Update. * user-regs.h (user_reg_read_ftype, user_reg_add_builtin) (user_reg_add): Add baton argument. * NEWS: Mention target description register support. * features/arm-core.xml, features/arm-fpa.xml: New. * eval.c (evaluate_subexp_standard): Allow ptype $register when the program is not running. * gdb.texinfo (-target-disconnect): Use @smallexample. (Requirements): Add anchor for Expat. Update description. (Target Descriptions): Mention Expat. (Target Description Format): Document new elements. Use @smallexample. (Predefined Target Types, Standard Target Features): New sections. * doc/gdbint.texinfo (Target Descriptions): New section. * gdb.xml/single-reg.xml, gdb.xml/tdesc-regs.exp, gdb.xml/core-only.xml, gdb.xml/extra-regs.xml: New files.
2007-02-08 22:00:36 +01:00
* Target descriptions can now describe target-specific registers,
for architectures which have implemented the support (currently
only ARM, M68K, and MIPS).
* Makefile.in (arm-tdep.o, eval.o, target-descriptions.o) (xml-tdesc.o): Update. * xml-support.c: Add a comment. (gdb_xml_enums_boolean): New variable. (gdb_xml_parse_attr_enum): Use strcasecmp. * xml-support.h (gdb_xml_enums_boolean): Declare. * xml-tdesc.c (struct tdesc_parsing_data): Record current_feature, next_regnum, and current_union. (tdesc_start_feature, tdesc_start_reg, tdesc_start_union) (tdesc_end_union, tdesc_start_field, tdesc_start_vector) (field_attributes, union_children, reg_attributes, union_attributes) (vector_attributes, feature_attributes, feature_children): New. (target_children): Make static. Add <feature>. (tdesc_elements): Make static. * target-descriptions.c (struct tdesc_reg, tdesc_reg_p, type_p) (struct tdesc_feature, tdesc_feature_p): New types. (struct target_desc): Add features member. (struct tdesc_arch_data, tdesc_data): New. (target_find_description): Clarify error message. Warn about ignored register descriptions. (tdesc_has_registers, tdesc_find_feature, tdesc_feature_name) (tdesc_named_type, tdesc_data_init, tdesc_data_alloc) (tdesc_data_cleanup, tdesc_numbered_register) (tdesc_numbered_register_choices, tdesc_find_register) (tdesc_register_name, tdesc_register_type) (tdesc_remote_register_number, tdesc_register_reggroup_p) (set_tdesc_pseudo_register_name, set_tdesc_pseudo_register_type) (set_tdesc_pseudo_register_reggroup_p, tdesc_use_registers) (tdesc_free_reg, tdesc_create_reg, tdesc_free_feature) (tdesc_create_feature, tdesc_record_type): New. (free_target_description): Free features. (_initialize_target_descriptions): Initialize tdesc_data. * arch-utils.c (default_remote_register_number): New. * arch-utils.h (default_remote_register_number): New prototype. * target-descriptions.h (set_tdesc_pseudo_register_name) (set_tdesc_pseudo_register_type, set_tdesc_pseudo_register_reggroup_p) (tdesc_use_registers, tdesc_data_alloc, tdesc_data_cleanup) (tdesc_numbered_register, tdesc_numbered_register_choices) (tdesc_has_registers, tdesc_find_feature, tdesc_feature_name) (tdesc_named_type, tdesc_create_feature, tdesc_record_type) (tdesc_create_reg): Declare. * gdbarch.sh (remote_register_number): New entry. * gdbarch.c, gdbarch.h: Regenerate. * remote.c (init_remote_state): Use gdbarch_remote_register_number. * features/gdb-target.dtd: Add feature, reg, vector, union, and field. * arm-tdep.c (arm_register_aliases): New. (arm_register_name_strings): Rename to... (arm_register_names): ...this. Make const. Delete the old version. (current_option, arm_register_byte): Delete. (set_disassembly_style): Simplify. Do not adjust arm_register_names. (value_of_arm_user_reg): New. (arm_gdbarch_init): Verify any described registers. Call tdesc_use_registers. Don't use arm_register_byte. Create aliases for standard register names. (_initialize_arm_tdep): Do not adjust arm_register_names. * user-regs.c (struct user_reg): Add baton member. (append_user_reg, user_reg_add_builtin, user_regs_init) (user_reg_add, value_of_user_reg): Use a baton for user register functions. * std-regs.c: Update. * user-regs.h (user_reg_read_ftype, user_reg_add_builtin) (user_reg_add): Add baton argument. * NEWS: Mention target description register support. * features/arm-core.xml, features/arm-fpa.xml: New. * eval.c (evaluate_subexp_standard): Allow ptype $register when the program is not running. * gdb.texinfo (-target-disconnect): Use @smallexample. (Requirements): Add anchor for Expat. Update description. (Target Descriptions): Mention Expat. (Target Description Format): Document new elements. Use @smallexample. (Predefined Target Types, Standard Target Features): New sections. * doc/gdbint.texinfo (Target Descriptions): New section. * gdb.xml/single-reg.xml, gdb.xml/tdesc-regs.exp, gdb.xml/core-only.xml, gdb.xml/extra-regs.xml: New files.
2007-02-08 22:00:36 +01:00
* GDB and the GDB remote stub, gdbserver, now support the XScale
iWMMXt coprocessor.
* The GDB remote stub, gdbserver, has been updated to support
ARM Windows CE (mingw32ce) debugging, and GDB Windows CE support
has been rewritten to use the standard GDB remote protocol.
* GDB can now step into C++ functions which are called through thunks.
2007-05-11 22:17:18 +02:00
* GDB for the Cell/B.E. SPU now supports overlay debugging.
2007-06-18 17:46:38 +02:00
* The GDB remote protocol "qOffsets" packet can now honor ELF segment
layout. It also supports a TextSeg= and DataSeg= response when only
segment base addresses (rather than offsets) are available.
* The /i format now outputs any trailing branch delay slot instructions
immediately following the last instruction within the count specified.
* The GDB remote protocol "T" stop reply packet now supports a
"library" response. Combined with the new "qXfer:libraries:read"
packet, this response allows GDB to debug shared libraries on targets
where the operating system manages the list of loaded libraries (e.g.
Windows and SymbianOS).
2007-07-17 Pedro Alves <pedro_alves@portugalmail.pt> Daniel Jacobowitz <dan@codesourcery.com> * config/i386/cygwin.mt (TDEPFILES): Add solib-target.o. * coff-pe-read.c (read_pe_exported_syms): Delete verbose printf. * NEWS: Mention gdbserver DLL support. * gdb.base/unload.c (dlopen, dlsym, dlclose, dlerror): Define for __WIN32__. (SHLIB_NAME): Delete definition. Always pass dlerror to fprintf. * gdb.base/unload.exp: Use shared library test routines. * inferiors.c (all_dlls, dlls_changed, get_dll): New. (add_thread): Minor cleanups. (clear_inferiors): Move lower in the file. Clear the DLL list. (free_one_dll, match_dll, loaded_dll, unloaded_dll, clear_list): New. * remote-utils.c (prepare_resume_reply): Check dlls_changed. (xml_escape_text): New. * server.c (handle_query): Handle qXfer:libraries:read. Report it for qSupported. (handle_v_cont): Report errors. (gdbserver_version): Update. (main): Correct size of own_buf. Do not report initial DLL events. * server.h (struct dll_info, all_dlls, dlls_changed, loaded_dll) (unloaded_dll, xml_escape_text): New. * win32-low.c (enum target_waitkind): Update comments. (win32_add_one_solib, get_image_name, winapi_EnumProcessModules) (winapi_GetModuleInformation, winapi_GetModuleFileNameExA) (win32_EnumProcessModules, win32_GetModuleInformation) (win32_GetModuleFileNameExA, load_psapi, psapi_get_dll_name) (winapi_CreateToolhelp32Snapshot, winapi_Module32First) (winapi_Module32Next, win32_CreateToolhelp32Snapshot) (win32_Module32First, win32_Module32Next, load_toolhelp) (toolhelp_get_dll_name, handle_load_dll, handle_unload_dll): New. (get_child_debug_event): Handle DLL events. (win32_wait): Likewise.
2007-07-17 14:51:41 +02:00
* The GDB remote stub, gdbserver, now supports dynamic link libraries
(DLLs) on Windows and Windows CE targets.
* GDB now supports a faster verification that a .debug file matches its binary
according to its build-id signature, if the signature is present.
* New commands
set remoteflow
show remoteflow
Enable or disable hardware flow control (RTS/CTS) on the serial port
when debugging using remote targets.
set mem inaccessible-by-default
show mem inaccessible-by-default
If the target supplies a memory map, for instance via the remote
protocol's "qXfer:memory-map:read" packet, setting this variable
prevents GDB from accessing memory outside the memory map. This
is useful for targets with memory mapped registers or which react
badly to accesses of unmapped address space.
set breakpoint auto-hw
show breakpoint auto-hw
If the target supplies a memory map, for instance via the remote
protocol's "qXfer:memory-map:read" packet, setting this variable
lets GDB use hardware breakpoints automatically for memory regions
where it can not use software breakpoints. This covers both the
"break" command and internal breakpoints used for other commands
including "next" and "finish".
catch exception
catch exception unhandled
Stop the program execution when Ada exceptions are raised.
catch assert
Stop the program execution when an Ada assertion failed.
set sysroot
show sysroot
Set an alternate system root for target files. This is a more
general version of "set solib-absolute-prefix", which is now
an alias to "set sysroot".
info spu
Provide extended SPU facility status information. This set of
commands is available only when debugging the Cell/B.E. SPU
architecture.
* New native configurations
OpenBSD/sh sh*-*openbsd*
XML feature description support. * NEWS: Mention target descriptions, "set tdesc filename", "unset tdesc filename", "show tdesc filename", and qXfer:features:read. * arch-utils.c (choose_architecture_for_target): New function. (gdbarch_info_fill): Call it. * target-descriptions.c (struct property): Make members non-const. (struct target_desc): Add arch member. (target_description_filename): New variable. (target_find_description): Try via XML first. (tdesc_architecture): New. (free_target_description, make_cleanup_free_target_description): New. (set_tdesc_property): Call xstrdup. (set_tdesc_architecture, tdesc_set_cmdlist, tdesc_show_cmdlist) (tdesc_unset_cmdlist, unset_tdesc_cmd, unset_tdesc_filename_cmd) (set_tdesc_cmd, show_tdesc_cmd, set_tdesc_filename_cmd) (show_tdesc_filename_cmd, _initialize_target_descriptions): New. * target-descriptions.h (tdesc_architecture) (make_cleanup_free_target_description, set_tdesc_architecture): New prototypes. * Makefile.in (SFILES): Add xml-tdesc.c. (COMMON_OBS): Add xml-tdesc.o. (target-descriptions.o): Update. (xml-tdesc.o): New rule. * xml-tdesc.c, xml-tdesc.h: New files. * remote.c (PACKET_qXfer_features): New enum. (remote_protocol_features): Add qXfer:features:read. (remote_xfer_partial): Handle TARGET_OBJECT_AVAILABLE_FEATURES. (_initialize_remote): Register qXfer:features:read. * target.h (enum target_object): Add TARGET_OBJECT_AVAILABLE_FEATURES. * features/gdb-target.dtd: New file. * linux-i386-low.c (the_low_target): Set arch_string. * linux-x86-64-low.c (the_low_target): Likewise. * linux-low.c (linux_arch_string): New. (linux_target_ops): Add it. * linux-low.h (struct linux_target_ops): Add arch_string. * server.c (write_qxfer_response): Use const void * for DATA. (get_features_xml): New. (handle_query): Handle qXfer:features:read. Report it for qSupported. * target.h (struct target_ops): Add arch_string method. * gdb.texinfo (Target Descriptions): New section. (General Query Packets): Add QPassSignals anchor. Mention qXfer:features:read under qSupported. Expand mentions of qXfer:memory-map:read and QPassSignals. Document qXfer:features:read.
2007-01-09 23:55:10 +01:00
set tdesc filename
unset tdesc filename
show tdesc filename
Use the specified local file as an XML target description, and do
not query the target for its built-in description.
* New targets
OpenBSD/sh sh*-*-openbsd*
MIPS64 GNU/Linux (gdbserver) mips64-linux-gnu
Toshiba Media Processor mep-elf
* New remote packets
QPassSignals:
Ignore the specified signals; pass them directly to the debugged program
without stopping other threads or reporting them to GDB.
XML feature description support. * NEWS: Mention target descriptions, "set tdesc filename", "unset tdesc filename", "show tdesc filename", and qXfer:features:read. * arch-utils.c (choose_architecture_for_target): New function. (gdbarch_info_fill): Call it. * target-descriptions.c (struct property): Make members non-const. (struct target_desc): Add arch member. (target_description_filename): New variable. (target_find_description): Try via XML first. (tdesc_architecture): New. (free_target_description, make_cleanup_free_target_description): New. (set_tdesc_property): Call xstrdup. (set_tdesc_architecture, tdesc_set_cmdlist, tdesc_show_cmdlist) (tdesc_unset_cmdlist, unset_tdesc_cmd, unset_tdesc_filename_cmd) (set_tdesc_cmd, show_tdesc_cmd, set_tdesc_filename_cmd) (show_tdesc_filename_cmd, _initialize_target_descriptions): New. * target-descriptions.h (tdesc_architecture) (make_cleanup_free_target_description, set_tdesc_architecture): New prototypes. * Makefile.in (SFILES): Add xml-tdesc.c. (COMMON_OBS): Add xml-tdesc.o. (target-descriptions.o): Update. (xml-tdesc.o): New rule. * xml-tdesc.c, xml-tdesc.h: New files. * remote.c (PACKET_qXfer_features): New enum. (remote_protocol_features): Add qXfer:features:read. (remote_xfer_partial): Handle TARGET_OBJECT_AVAILABLE_FEATURES. (_initialize_remote): Register qXfer:features:read. * target.h (enum target_object): Add TARGET_OBJECT_AVAILABLE_FEATURES. * features/gdb-target.dtd: New file. * linux-i386-low.c (the_low_target): Set arch_string. * linux-x86-64-low.c (the_low_target): Likewise. * linux-low.c (linux_arch_string): New. (linux_target_ops): Add it. * linux-low.h (struct linux_target_ops): Add arch_string. * server.c (write_qxfer_response): Use const void * for DATA. (get_features_xml): New. (handle_query): Handle qXfer:features:read. Report it for qSupported. * target.h (struct target_ops): Add arch_string method. * gdb.texinfo (Target Descriptions): New section. (General Query Packets): Add QPassSignals anchor. Mention qXfer:features:read under qSupported. Expand mentions of qXfer:memory-map:read and QPassSignals. Document qXfer:features:read.
2007-01-09 23:55:10 +01:00
qXfer:features:read:
Read an XML target description from the target, which describes its
features.
qXfer:spu:read:
qXfer:spu:write:
Read or write contents of an spufs file on the target system. These
packets are available only on the Cell/B.E. SPU architecture.
qXfer:libraries:read:
Report the loaded shared libraries. Combined with new "T" packet
response, this packet allows GDB to debug shared libraries on
targets where the operating system manages the list of loaded
libraries (e.g. Windows and SymbianOS).
* Removed targets
Support for these obsolete configurations has been removed.
alpha*-*-osf1*
alpha*-*-osf2*
d10v-*-*
hppa*-*-hiux*
i[34567]86-ncr-*
i[34567]86-*-dgux*
i[34567]86-*-lynxos*
i[34567]86-*-netware*
i[34567]86-*-sco3.2v5*
i[34567]86-*-sco3.2v4*
i[34567]86-*-sco*
i[34567]86-*-sysv4.2*
i[34567]86-*-sysv4*
i[34567]86-*-sysv5*
i[34567]86-*-unixware2*
i[34567]86-*-unixware*
i[34567]86-*-sysv*
i[34567]86-*-isc*
m68*-cisco*-*
m68*-tandem-*
mips*-*-pe
rs6000-*-lynxos*
sh*-*-pe
* Other removed features
target abug
target cpu32bug
target est
target rom68k
Various m68k-only ROM monitors.
target hms
target e7000
target sh3
target sh3e
Various Renesas ROM monitors and debugging interfaces for SH and
H8/300.
target ocd
Support for a Macraigor serial interface to on-chip debugging.
GDB does not directly support the newer parallel or USB
interfaces.
DWARF 1 support
A debug information format. The predecessor to DWARF 2 and
DWARF 3, which are still supported.
Support for the HP aCC compiler on HP-UX/PA-RISC
SOM-encapsulated symbolic debugging information, automatic
invocation of pxdb, and the aCC custom C++ ABI. This does not
affect HP-UX for Itanium or GCC for HP-UX/PA-RISC. Code compiled
with aCC can still be debugged on an assembly level.
MIPS ".pdr" sections
A MIPS-specific format used to describe stack frame layout
in debugging information.
Scheme support
GDB could work with an older version of Guile to debug
the interpreter and Scheme programs running in it.
set mips stack-arg-size
set mips saved-gpreg-size
Use "set mips abi" to control parameter passing for MIPS.
*** Changes in GDB 6.6
* New targets
Xtensa xtensa-elf
Cell Broadband Engine SPU spu-elf
* GDB can now be configured as a cross-debugger targeting native Windows
(mingw32) or Cygwin. It can communicate with a remote debugging stub
running on a Windows system over TCP/IP to debug Windows programs.
* The GDB remote stub, gdbserver, has been updated to support Windows and
Cygwin debugging. Both single-threaded and multi-threaded programs are
supported.
* The "set trust-readonly-sections" command works again. This command was
broken in GDB 6.3, 6.4, and 6.5.
* The "load" command now supports writing to flash memory, if the remote
stub provides the required support.
* Support for GNU/Linux Thread Local Storage (TLS, per-thread variables) no
longer requires symbolic debug information (e.g. DWARF-2).
* New commands
set substitute-path
unset substitute-path
show substitute-path
Manage a list of substitution rules that GDB uses to rewrite the name
of the directories where the sources are located. This can be useful
for instance when the sources were moved to a different location
between compilation and debugging.
set trace-commands
show trace-commands
Print each CLI command as it is executed. Each command is prefixed with
a number of `+' symbols representing the nesting depth.
The source command now has a `-v' option to enable the same feature.
* REMOVED features
The ARM Demon monitor support (RDP protocol, "target rdp").
Kernel Object Display, an embedded debugging feature which only worked with
an obsolete version of Cisco IOS.
The 'set download-write-size' and 'show download-write-size' commands.
* New remote packets
qSupported:
Tell a stub about GDB client features, and request remote target features.
The first feature implemented is PacketSize, which allows the target to
specify the size of packets it can handle - to minimize the number of
packets required and improve performance when connected to a remote
target.
qXfer:auxv:read:
Fetch an OS auxilliary vector from the remote stub. This packet is a
more efficient replacement for qPart:auxv:read.
qXfer:memory-map:read:
Fetch a memory map from the remote stub, including information about
RAM, ROM, and flash memory devices.
vFlashErase:
vFlashWrite:
vFlashDone:
Erase and program a flash memory device.
* Removed remote packets
qPart:auxv:read:
This packet has been replaced by qXfer:auxv:read. Only GDB 6.4 and 6.5
used it, and only gdbserver implemented it.
*** Changes in GDB 6.5
* New targets
Renesas M32C/M16C m32c-elf
Morpho Technologies ms1 ms1-elf
* New commands
init-if-undefined Initialize a convenience variable, but
only if it doesn't already have a value.
The following commands are presently only implemented for native GNU/Linux:
checkpoint Save a snapshot of the program state.
restart <n> Return the program state to a
previously saved state.
info checkpoints List currently saved checkpoints.
delete-checkpoint <n> Delete a previously saved checkpoint.
set|show detach-on-fork Tell gdb whether to detach from a newly
forked process, or to keep debugging it.
info forks List forks of the user program that
are available to be debugged.
fork <n> Switch to debugging one of several
forks of the user program that are
available to be debugged.
delete-fork <n> Delete a fork from the list of forks
that are available to be debugged (and
kill the forked process).
detach-fork <n> Delete a fork from the list of forks
that are available to be debugged (and
allow the process to continue).
* New architecture
Morpho Technologies ms2 ms1-elf
* NEWS: Mention native Windows support. * Makefile.in (gdb_select_h, ser_tcp_h): New. (ALLDEPFILES): Add ser-mingw.c. (event-loop.o, inflow.o, mingw-hdep.o, posix-hdep.o, ser-base.o) (ser-tcp.o, ser-unix.o): Update. (ser-mingw.o): New rule. * configure: Regenerated. * configure.ac: Add ser-mingw.o for mingw32. * ser-mingw.c: New file. * event-loop.c: Include "gdb_select.h". (gdb_select): Remove, moved to mingw-hdep.c and posix-hdep.c. * ser-base.c: Include "gdb_select.h". (ser_base_wait_for): Use gdb_select. * serial.c (serial_for_fd): New function. (serial_fdopen): Try "terminal" before "hardwire". Initialize the allocated struct serial. (serial_wait_handle): New function. * serial.h (serial_for_fd, serial_wait_handle): New prototypes. (struct serial_ops) [USE_WIN32API]: Add wait_handle. * gdb_select.h: New file. * ser-tcp.c: Include "ser-tcp.h". Remove unused "ser-unix.h" include. (net_close, net_read_prim, net_write_prim): Make global. (net_open): Likewise. Pass an exception set to select. Whitespace fix. Document why we can not use gdb_select. (_initialize_ser_tcp) [USE_WIN32API]: Do not register TCP support here. * ser-tcp.h: New file. * inflow.c (gdb_has_a_terminal): Don't initialize stdin_serial here. (handle_sigio): Use gdb_select. (initialize_stdin_serial): New function. * terminal.h (initialize_stdin_serial): New prototype. * top.c (gdb_init): Call initialize_stdin_serial. * mingw-hdep.c (gdb_select): New function, moved from gdb_select in event-loop.c. Add exception condition support. Use serial_for_fd and serial_wait_handle. Fix timeout handling. * posix-hdep.c: Include "gdb_select.h". (gdb_select): New function. * remote-st.c (connect_command): Use gdb_select. * ser-unix.c: Include "gdb_select.h". (hardwire_send_break, wait_for): Use gdb_select.
2006-02-10 23:01:43 +01:00
* Improved Windows host support
GDB now builds as a cross debugger hosted on i686-mingw32, including
native console support, and remote communications using either
network sockets or serial ports.
* Improved Modula-2 language support
GDB can now print most types in the Modula-2 syntax. This includes:
basic types, set types, record types, enumerated types, range types,
pointer types and ARRAY types. Procedure var parameters are correctly
printed and hexadecimal addresses and character constants are also
written in the Modula-2 syntax. Best results can be obtained by using
GNU Modula-2 together with the -gdwarf-2 command line option.
* Makefile.in (remote-rdi.o): Remove. (rdi-share/libangsd.a): Likewise. * README: Don't mention remote-rdi.c. * NEWS: Mention removal of rdi-share. * configure.ac: Don't configure rdi-share subdirectory. * remote-rdi.c: Remove. * config/arm/embed.mt (TDEPFILES): Remove remote-rdi.o. (TDEPLIBS): Remove rdi-share/libangsd.a. * rdi-share/Makefile.am: Remove. * rdi-share/Makefile.in: Likewise. * rdi-share/README.CYGNUS: Likewise. * rdi-share/aclocal.m4: Likewise. * rdi-share/adp.h: Likewise. * rdi-share/adperr.h: Likewise. * rdi-share/angel.h: Likewise. * rdi-share/angel_bytesex.c: Likewise. * rdi-share/angel_bytesex.h: Likewise. * rdi-share/angel_endian.h: Likewise. * rdi-share/ardi.c: Likewise. * rdi-share/ardi.h: Likewise. * rdi-share/armdbg.h: Likewise. * rdi-share/buffers.h: Likewise. * rdi-share/chandefs.h: Likewise. * rdi-share/channels.h: Likewise. * rdi-share/chanpriv.h: Likewise. * rdi-share/configure: Likewise. * rdi-share/configure.in: Likewise. * rdi-share/crc.c: Likewise. * rdi-share/crc.h: Likewise. * rdi-share/dbg_conf.h: Likewise. * rdi-share/dbg_cp.h: Likewise. * rdi-share/dbg_hif.h: Likewise. * rdi-share/dbg_rdi.h: Likewise. * rdi-share/devclnt.h: Likewise. * rdi-share/devices.h: Likewise. * rdi-share/devsw.c: Likewise. * rdi-share/devsw.h: Likewise. * rdi-share/drivers.c: Likewise. * rdi-share/drivers.h: Likewise. * rdi-share/etherdrv.c: Likewise. * rdi-share/ethernet.h: Likewise. * rdi-share/host.h: Likewise. * rdi-share/hostchan.c: Likewise. * rdi-share/hostchan.h: Likewise. * rdi-share/hsys.c: Likewise. * rdi-share/hsys.h: Likewise. * rdi-share/logging.c: Likewise. * rdi-share/logging.h: Likewise. * rdi-share/msgbuild.c: Likewise. * rdi-share/msgbuild.h: Likewise. * rdi-share/params.c: Likewise. * rdi-share/params.h: Likewise. * rdi-share/rx.c: Likewise. * rdi-share/rxtx.h: Likewise. * rdi-share/serdrv.c: Likewise. * rdi-share/serpardr.c: Likewise. * rdi-share/sys.h: Likewise. * rdi-share/tx.c: Likewise. * rdi-share/unixcomm.c: Likewise. * rdi-share/unixcomm.h: Likewise.
2006-01-21 02:29:04 +01:00
* REMOVED features
The ARM rdi-share module.
The Netware NLM debug server.
*** Changes in GDB 6.4
* New native configurations
OpenBSD/arm arm*-*-openbsd*
OpenBSD/mips64 mips64-*-openbsd*
2005-08-18 01:02:00 +02:00
* New targets
Morpho Technologies ms1 ms1-elf
* New command line options
--batch-silent As for --batch, but totally silent.
--return-child-result The debugger will exist with the same value
the child (debugged) program exited with.
--eval-command COMMAND, -ex COMMAND
Execute a single GDB CLI command. This may be
specified multiple times and in conjunction
with the --command (-x) option.
* Deprecated commands removed
The following commands, that were deprecated in 2000, have been
removed:
Command Replacement
set|show arm disassembly-flavor set|show arm disassembler
othernames set arm disassembler
set|show remotedebug set|show debug remote
set|show archdebug set|show debug arch
set|show eventdebug set|show debug event
regs info registers
* New BSD user-level threads support
It is now possible to debug programs using the user-level threads
library on OpenBSD and FreeBSD. Currently supported (target)
configurations are:
FreeBSD/amd64 x86_64-*-freebsd*
FreeBSD/i386 i386-*-freebsd*
OpenBSD/i386 i386-*-openbsd*
Note that the new kernel threads libraries introduced in FreeBSD 5.x
are not yet supported.
* New support for Matsushita MN10300 w/sim added
(Work in progress). mn10300-elf.
* REMOVED configurations and files
VxWorks and the XDR protocol *-*-vxworks
Motorola MCORE mcore-*-*
National Semiconductor NS32000 ns32k-*-*
* New "set print array-indexes" command
After turning this setting "on", GDB prints the index of each element
when displaying arrays. The default is "off" to preserve the previous
behavior.
* VAX floating point support
GDB now supports the not-quite-ieee VAX F and D floating point formats.
* User-defined command support
In addition to using $arg0..$arg9 for argument passing, it is now possible
to use $argc to determine now many arguments have been passed. See the
section on user-defined commands in the user manual for more information.
*** Changes in GDB 6.3:
* New command line option
GDB now accepts -l followed by a number to set the timeout for remote
debugging.
* GDB works with GCC -feliminate-dwarf2-dups
GDB now supports a more compact representation of DWARF-2 debug
information using DW_FORM_ref_addr references. These are produced
by GCC with the option -feliminate-dwarf2-dups and also by some
proprietary compilers. With GCC, you must use GCC 3.3.4 or later
to use -feliminate-dwarf2-dups.
2004-07-19 00:29:40 +02:00
* Internationalization
When supported by the host system, GDB will be built with
internationalization (libintl). The task of marking up the sources is
continued, we're looking forward to our first translation.
2004-11-02 10:41:00 +01:00
* Ada
Initial support for debugging programs compiled with the GNAT
implementation of the Ada programming language has been integrated
into GDB. In this release, support is limited to expression evaluation.
* New native configurations
GNU/Linux/m32r m32r-*-linux-gnu
* Remote 'p' packet
GDB's remote protocol now includes support for the 'p' packet. This
packet is used to fetch individual registers from a remote inferior.
* END-OF-LIFE registers[] compatibility module
GDB's internal register infrastructure has been completely rewritten.
The new infrastructure making possible the implementation of key new
features including 32x64 (e.g., 64-bit amd64 GDB debugging a 32-bit
i386 application).
GDB 6.3 will be the last release to include the the registers[]
compatibility module that allowed out-of-date configurations to
continue to work. This change directly impacts the following
configurations:
hppa-*-hpux
ia64-*-aix
mips-*-irix*
*-*-lynx
mips-*-linux-gnu
sds protocol
xdr protocol
powerpc bdm protocol
Unless there is activity to revive these configurations, they will be
made OBSOLETE in GDB 6.4, and REMOVED from GDB 6.5.
* OBSOLETE configurations and files
Configurations that have been declared obsolete in this release have
been commented out. Unless there is activity to revive these
configurations, the next release of GDB will have their sources
permanently REMOVED.
h8300-*-*
mcore-*-*
mn10300-*-*
ns32k-*-*
sh64-*-*
v850-*-*
*** Changes in GDB 6.2.1:
* MIPS `break main; run' gave an heuristic-fence-post warning
When attempting to run even a simple program, a warning about
heuristic-fence-post being hit would be reported. This problem has
been fixed.
* MIPS IRIX 'long double' crashed GDB
When examining a long double variable, GDB would get a segmentation
fault. The crash has been fixed (but GDB 6.2 cannot correctly examine
IRIX long double values).
* VAX and "next"
A bug in the VAX stack code was causing problems with the "next"
command. This problem has been fixed.
2004-07-19 00:29:40 +02:00
*** Changes in GDB 6.2:
* Fix for ``many threads''
On GNU/Linux systems that use the NPTL threads library, a program
rapidly creating and deleting threads would confuse GDB leading to the
error message:
ptrace: No such process.
thread_db_get_info: cannot get thread info: generic error
This problem has been fixed.
* "-async" and "-noasync" options removed.
Support for the broken "-noasync" option has been removed (it caused
GDB to dump core).
2004-05-26 08:32:01 +02:00
* New ``start'' command.
This command runs the program until the begining of the main procedure.
2004-07-10 23:24:01 +02:00
* New BSD Kernel Data Access Library (libkvm) interface
Using ``target kvm'' it is now possible to debug kernel core dumps and
live kernel memory images on various FreeBSD, NetBSD and OpenBSD
platforms. Currently supported (native-only) configurations are:
FreeBSD/amd64 x86_64-*-freebsd*
FreeBSD/i386 i?86-*-freebsd*
NetBSD/i386 i?86-*-netbsd*
NetBSD/m68k m68*-*-netbsd*
NetBSD/sparc sparc-*-netbsd*
OpenBSD/amd64 x86_64-*-openbsd*
OpenBSD/i386 i?86-*-openbsd*
OpenBSD/m68k m68*-openbsd*
OpenBSD/sparc sparc-*-openbsd*
* Signal trampoline code overhauled
Many generic problems with GDB's signal handling code have been fixed.
These include: backtraces through non-contiguous stacks; recognition
of sa_sigaction signal trampolines; backtrace from a NULL pointer
call; backtrace through a signal trampoline; step into and out of
signal handlers; and single-stepping in the signal trampoline.
Please note that kernel bugs are a limiting factor here. These
features have been shown to work on an s390 GNU/Linux system that
include a 2.6.8-rc1 kernel. Ref PR breakpoints/1702.
* Cygwin support for DWARF 2 added.
* New native configurations
GNU/Linux/hppa hppa*-*-linux*
OpenBSD/hppa hppa*-*-openbsd*
OpenBSD/m68k m68*-*-openbsd*
OpenBSD/m88k m88*-*-openbsd*
OpenBSD/powerpc powerpc-*-openbsd*
NetBSD/vax vax-*-netbsd*
OpenBSD/vax vax-*-openbsd*
* END-OF-LIFE frame compatibility module
GDB's internal frame infrastructure has been completely rewritten.
The new infrastructure making it possible to support key new features
including DWARF 2 Call Frame Information. To aid in the task of
migrating old configurations to this new infrastructure, a
compatibility module, that allowed old configurations to continue to
work, was also included.
GDB 6.2 will be the last release to include this frame compatibility
module. This change directly impacts the following configurations:
h8300-*-*
mcore-*-*
mn10300-*-*
ns32k-*-*
sh64-*-*
v850-*-*
xstormy16-*-*
Unless there is activity to revive these configurations, they will be
made OBSOLETE in GDB 6.3, and REMOVED from GDB 6.4.
2004-04-04 Andrew Cagney <cagney@redhat.com> * config/mips/xm-riscos.h: Delete. * config/mips/xm-mipsv4.h, config/mips/xm-mips.h: Delete. * config/mips/tm-mipsv4.h, config/mips/riscos.mh: Delete. * config/mips/nm-riscos.h, config/mips/nm-news-mips.h: Delete. * config/mips/nm-mips.h, config/mips/news-mips.mh: Delete. * config/mips/news-mips.mh, config/m68k/tm-m68kv4.h: Delete. * config/mips/decstation.mh, config/mips/littlemips.mh: Delete. * config/mips/mipsv4.mt, config/m68k/tm-sun3.h: Delete. * config/m68k/xm-sun3os4.h, config/m68k/xm-sun3.h: Delete. * config/m68k/xm-sun2.h, config/m68k/xm-m68kv4.h: Delete. * config/m68k/xm-dpx2.h, config/m68k/xm-delta68.h: Delete. * config/m68k/xm-3b1.h, config/m68k/tm-sun3os4.h: Delete. * config/m68k/tm-m68klynx.h, config/m68k/tm-dpx2.h: Delete. * config/m68k/tm-delta68.h, config/m68k/tm-3b1.h: Delete. * config/m68k/sun3os4.mt, config/m68k/nm-sysv4.h: Delete. * config/m68k/nm-sun3.h, config/m68k/sun3os4.mh: Delete. * config/m68k/sun2os3.mh, config/m68k/nm-sun2.h: Delete. * config/m68k/nm-m68klynx.h, config/m68k/sun3os3.mt: Delete. * config/m68k/nm-dpx2.h, config/m68k/sun2os3.mt: Delete. * config/m68k/dpx2.mh, config/m68k/sun3os3.mh: Delete. * config/m68k/sun2os4.mh, config/m68k/nm-delta68.h: Delete. * config/m68k/m68kv4.mt, config/m68k/m68klynx.mt: Delete. * config/m68k/3b1.mt, config/m68k/m68klynx.mh: Delete. * config/m68k/m68kv4.mh, config/m68k/sun2os4.mt: Delete. * config/m68k/tm-sun2os4.h, config/m68k/3b1.mh: Delete. * config/m68k/dpx2.mt, config/m68k/delta68.mt: Delete. * config/m68k/tm-sun2.h, config/m68k/delta68.mh: Delete. * configure.tgt: Remove m68000-*-sunos3*, m68000-*-sunos4*, m68*-bull-sysv*, m68*-att-*, m68*-motorola-*, m68*-*-lynxos*, m68*-*-sunos3*, m68*-*-sunos4*, m68*-*-sysv4*, mips*-*-sysv4*. * configure.host: Remove m680[01]0-sun-sunos3*, m680[01]0-sun-sunos4*, m68*-att-*, m68*-bull*-sysv*, m68*-*-lynxos*, m68*-*-sysv4*, m68*-motorola-*, m68*-sun-sunos3*, m68*-sun-sunos4*, m68*-sun-*, mips-dec-*, mips-little-*, mips-sony-*, mips-*-mach3*, mips-*-sysv4*, mips-*-sysv*, mips-*-riscos*. * NEWS: Mention removed systems.
2004-04-05 05:52:43 +02:00
* REMOVED configurations and files
Sun 3, running SunOS 3 m68*-*-sunos3*
Sun 3, running SunOS 4 m68*-*-sunos4*
Sun 2, running SunOS 3 m68000-*-sunos3*
Sun 2, running SunOS 4 m68000-*-sunos4*
Motorola 680x0 running LynxOS m68*-*-lynxos*
AT&T 3b1/Unix pc m68*-att-*
Bull DPX2 (68k, System V release 3) m68*-bull-sysv*
decstation mips-dec-* mips-little-*
riscos mips-*-riscos* mips-*-sysv*
sonymips mips-sony-*
sysv mips*-*-sysv4* (IRIX 5/6 not included)
*** Changes in GDB 6.1.1:
* TUI (Text-mode User Interface) built-in (also included in GDB 6.1)
The TUI (Text-mode User Interface) is now built as part of a default
GDB configuration. It is enabled by either selecting the TUI with the
command line option "-i=tui" or by running the separate "gdbtui"
program. For more information on the TUI, see the manual "Debugging
with GDB".
* Pending breakpoint support (also included in GDB 6.1)
Support has been added to allow you to specify breakpoints in shared
libraries that have not yet been loaded. If a breakpoint location
cannot be found, and the "breakpoint pending" option is set to auto,
GDB queries you if you wish to make the breakpoint pending on a future
shared-library load. If and when GDB resolves the breakpoint symbol,
the pending breakpoint is removed as one or more regular breakpoints
are created.
Pending breakpoints are very useful for GCJ Java debugging.
* Fixed ISO-C build problems
The files bfd/elf-bfd.h, gdb/dictionary.c and gdb/types.c contained
non ISO-C code that stopped them being built using a more strict ISO-C
compiler (e.g., IBM's C compiler).
* Fixed build problem on IRIX 5
Due to header problems with <sys/proc.h>, the file gdb/proc-api.c
wasn't able to compile compile on an IRIX 5 system.
* Added execute permission to gdb/gdbserver/configure
The shell script gdb/testsuite/gdb.stabs/configure lacked execute
permission. This bug would cause configure to fail on a number of
systems (Solaris, IRIX). Ref: server/519.
* Fixed build problem on hpux2.0w-hp-hpux11.00 using the HP ANSI C compiler
Older HPUX ANSI C compilers did not accept variable array sizes. somsolib.c
has been updated to use constant array sizes.
* Fixed a panic in the DWARF Call Frame Info code on Solaris 2.7
GCC 3.3.2, on Solaris 2.7, includes the DW_EH_PE_funcrel encoding in
its generated DWARF Call Frame Info. This encoding was causing GDB to
panic, that panic has been fixed. Ref: gdb/1628.
* Fixed a problem when examining parameters in shared library code.
When examining parameters in optimized shared library code generated
by a mainline GCC, GDB would incorrectly report ``Variable "..." is
not available''. GDB now correctly displays the variable's value.
*** Changes in GDB 6.1:
* Removed --with-mmalloc
Support for the mmalloc memory manager has been removed, as it
conflicted with the internal gdb byte cache.
* Changes in AMD64 configurations
The AMD64 target now includes the %cs and %ss registers. As a result
the AMD64 remote protocol has changed; this affects the floating-point
and SSE registers. If you rely on those registers for your debugging,
you should upgrade gdbserver on the remote side.
* Revised SPARC target
The SPARC target has been completely revised, incorporating the
FreeBSD/sparc64 support that was added for GDB 6.0. As a result
support for LynxOS and SunOS 4 has been dropped. Calling functions
from within GDB on operating systems with a non-executable stack
(Solaris, OpenBSD) now works.
* New C++ demangler
GDB has a new C++ demangler which does a better job on the mangled
names generated by current versions of g++. It also runs faster, so
with this and other changes gdb should now start faster on large C++
programs.
* DWARF 2 Location Expressions
GDB support for location expressions has been extended to support function
arguments and frame bases. Older versions of GDB could crash when they
encountered these.
* C++ nested types and namespaces
GDB's support for nested types and namespaces in C++ has been
improved, especially if you use the DWARF 2 debugging format. (This
is the default for recent versions of GCC on most platforms.)
Specifically, if you have a class "Inner" defined within a class or
namespace "Outer", then GDB realizes that the class's name is
"Outer::Inner", not simply "Inner". This should greatly reduce the
frequency of complaints about not finding RTTI symbols. In addition,
if you are stopped at inside of a function defined within a namespace,
GDB modifies its name lookup accordingly.
* New native configurations
NetBSD/amd64 x86_64-*-netbsd*
OpenBSD/amd64 x86_64-*-openbsd*
OpenBSD/alpha alpha*-*-openbsd*
OpenBSD/sparc sparc-*-openbsd*
OpenBSD/sparc64 sparc64-*-openbsd*
* New debugging protocols
M32R with SDI protocol m32r-*-elf*
* "set prompt-escape-char" command deleted.
The command "set prompt-escape-char" has been deleted. This command,
and its very obscure effet on GDB's prompt, was never documented,
tested, nor mentioned in the NEWS file.
2003-12-01 Andrew Cagney <cagney@redhat.com> Obsolete old m68k systems. * configure.host: Mark m68*-sun-*, m68*-sun-sunos4*, m68*-sun-sunos3*, m68*-motorola-*, m68*-*-sysv4*, m68*-*-lynxos*, m68*-bull*-sysv*, m68*-att-*, m680[01]0-sun-sunos4*, and m680[01]0-sun-sunos3* as obsolete. * configure.tgt: Mark m68*-*-lynxos*, m68*-*-sunos3*, m68*-*-sunos4*, m68*-*-sysv4*, m68000-*-sunos3*, m68000-*-sunos4*, m68*-bull-sysv*, m68*-att-*, and m68*-motorola-*, as obsolete. * config/m68k/sun3os4.mh: Mark file obsolete. * config/m68k/xm-sun3os4.h: Mark file obsolete. * config/m68k/sun3os3.mh: Mark file obsolete. * config/m68k/nm-sun3.h: Mark file obsolete. * config/m68k/xm-sun3.h: Mark file obsolete. * config/m68k/sun2os4.mh: Mark file obsolete. * config/m68k/sun2os3.mh: Mark file obsolete. * config/m68k/nm-sun2.h: Mark file obsolete. * config/m68k/xm-sun2.h: Mark file obsolete. * config/m68k/m68kv4.mh: Mark file obsolete. * config/m68k/nm-sysv4.h: Mark file obsolete. * config/m68k/xm-m68kv4.h: Mark file obsolete. * config/m68k/m68klynx.mh: Mark file obsolete. * config/m68k/nm-m68klynx.h: Mark file obsolete. * config/m68k/dpx2.mh: Mark file obsolete. * config/m68k/xm-dpx2.h: Mark file obsolete. * config/m68k/nm-dpx2.h: Mark file obsolete. * config/m68k/delta68.mh: Mark file obsolete. * config/m68k/xm-delta68.h: Mark file obsolete. * config/m68k/nm-delta68.h: Mark file obsolete. * config/m68k/3b1.mh: Mark file obsolete. * config/m68k/xm-3b1.h: Mark file obsolete. * config/m68k/sun3os4.mt: Mark file obsolete. * config/m68k/tm-sun3os4.h: Mark file obsolete. * config/m68k/sun3os3.mt: Mark file obsolete. * config/m68k/tm-sun3.h: Mark file obsolete. * config/m68k/sun2os4.mt: Mark file obsolete. * config/m68k/tm-sun2os4.h: Mark file obsolete. * config/m68k/sun2os3.mt: Mark file obsolete. * config/m68k/tm-sun2.h: Mark file obsolete. * config/m68k/m68kv4.mt: Mark file obsolete. * config/m68k/tm-m68kv4.h: Mark file obsolete. * config/m68k/m68klynx.mt: Mark file obsolete. * config/m68k/tm-m68klynx.h: Mark file obsolete. * config/m68k/dpx2.mt: Mark file obsolete. * config/m68k/tm-dpx2.h: Mark file obsolete. * config/m68k/delta68.mt: Mark file obsolete. * config/m68k/tm-delta68.h: Mark file obsolete. * config/m68k/3b1.mt: Mark file obsolete. * config/m68k/tm-3b1.h: Mark file obsolete.
2003-12-01 15:53:42 +01:00
* OBSOLETE configurations and files
Configurations that have been declared obsolete in this release have
been commented out. Unless there is activity to revive these
configurations, the next release of GDB will have their sources
permanently REMOVED.
Sun 3, running SunOS 3 m68*-*-sunos3*
Sun 3, running SunOS 4 m68*-*-sunos4*
Sun 2, running SunOS 3 m68000-*-sunos3*
Sun 2, running SunOS 4 m68000-*-sunos4*
Motorola 680x0 running LynxOS m68*-*-lynxos*
AT&T 3b1/Unix pc m68*-att-*
Bull DPX2 (68k, System V release 3) m68*-bull-sysv*
decstation mips-dec-* mips-little-*
riscos mips-*-riscos* mips-*-sysv*
sonymips mips-sony-*
sysv mips*-*-sysv4* (IRIX 5/6 not included)
2003-12-01 Andrew Cagney <cagney@redhat.com> Obsolete old m68k systems. * configure.host: Mark m68*-sun-*, m68*-sun-sunos4*, m68*-sun-sunos3*, m68*-motorola-*, m68*-*-sysv4*, m68*-*-lynxos*, m68*-bull*-sysv*, m68*-att-*, m680[01]0-sun-sunos4*, and m680[01]0-sun-sunos3* as obsolete. * configure.tgt: Mark m68*-*-lynxos*, m68*-*-sunos3*, m68*-*-sunos4*, m68*-*-sysv4*, m68000-*-sunos3*, m68000-*-sunos4*, m68*-bull-sysv*, m68*-att-*, and m68*-motorola-*, as obsolete. * config/m68k/sun3os4.mh: Mark file obsolete. * config/m68k/xm-sun3os4.h: Mark file obsolete. * config/m68k/sun3os3.mh: Mark file obsolete. * config/m68k/nm-sun3.h: Mark file obsolete. * config/m68k/xm-sun3.h: Mark file obsolete. * config/m68k/sun2os4.mh: Mark file obsolete. * config/m68k/sun2os3.mh: Mark file obsolete. * config/m68k/nm-sun2.h: Mark file obsolete. * config/m68k/xm-sun2.h: Mark file obsolete. * config/m68k/m68kv4.mh: Mark file obsolete. * config/m68k/nm-sysv4.h: Mark file obsolete. * config/m68k/xm-m68kv4.h: Mark file obsolete. * config/m68k/m68klynx.mh: Mark file obsolete. * config/m68k/nm-m68klynx.h: Mark file obsolete. * config/m68k/dpx2.mh: Mark file obsolete. * config/m68k/xm-dpx2.h: Mark file obsolete. * config/m68k/nm-dpx2.h: Mark file obsolete. * config/m68k/delta68.mh: Mark file obsolete. * config/m68k/xm-delta68.h: Mark file obsolete. * config/m68k/nm-delta68.h: Mark file obsolete. * config/m68k/3b1.mh: Mark file obsolete. * config/m68k/xm-3b1.h: Mark file obsolete. * config/m68k/sun3os4.mt: Mark file obsolete. * config/m68k/tm-sun3os4.h: Mark file obsolete. * config/m68k/sun3os3.mt: Mark file obsolete. * config/m68k/tm-sun3.h: Mark file obsolete. * config/m68k/sun2os4.mt: Mark file obsolete. * config/m68k/tm-sun2os4.h: Mark file obsolete. * config/m68k/sun2os3.mt: Mark file obsolete. * config/m68k/tm-sun2.h: Mark file obsolete. * config/m68k/m68kv4.mt: Mark file obsolete. * config/m68k/tm-m68kv4.h: Mark file obsolete. * config/m68k/m68klynx.mt: Mark file obsolete. * config/m68k/tm-m68klynx.h: Mark file obsolete. * config/m68k/dpx2.mt: Mark file obsolete. * config/m68k/tm-dpx2.h: Mark file obsolete. * config/m68k/delta68.mt: Mark file obsolete. * config/m68k/tm-delta68.h: Mark file obsolete. * config/m68k/3b1.mt: Mark file obsolete. * config/m68k/tm-3b1.h: Mark file obsolete.
2003-12-01 15:53:42 +01:00
* REMOVED configurations and files
SGI Irix-4.x mips-sgi-irix4 or iris4
SGI Iris (MIPS) running Irix V3: mips-sgi-irix or iris
Z8000 simulator z8k-zilog-none or z8ksim
Matsushita MN10200 w/simulator mn10200-*-*
H8/500 simulator h8500-hitachi-hms or h8500hms
HP/PA running BSD hppa*-*-bsd*
HP/PA running OSF/1 hppa*-*-osf*
HP/PA Pro target hppa*-*-pro*
PMAX (MIPS) running Mach 3.0 mips*-*-mach3*
386BSD i[3456]86-*-bsd*
Sequent family i[3456]86-sequent-sysv4*
i[3456]86-sequent-sysv*
i[3456]86-sequent-bsd*
SPARC running LynxOS sparc-*-lynxos*
SPARC running SunOS 4 sparc-*-sunos4*
Tsqware Sparclet sparclet-*-*
Fujitsu SPARClite sparclite-fujitsu-none or sparclite
*** Changes in GDB 6.0:
* Objective-C
Support for debugging the Objective-C programming language has been
integrated into GDB.
* New backtrace mechanism (includes DWARF 2 Call Frame Information).
DWARF 2's Call Frame Information makes available compiler generated
information that more exactly describes the program's run-time stack.
By using this information, GDB is able to provide more robust stack
backtraces.
The i386, amd64 (nee, x86-64), Alpha, m68hc11, ia64, and m32r targets
have been updated to use a new backtrace mechanism which includes
DWARF 2 CFI support.
* Hosted file I/O.
GDB's remote protocol has been extended to include support for hosted
file I/O (where the remote target uses GDB's file system). See GDB's
remote protocol documentation for details.
* All targets using the new architecture framework.
All of GDB's targets have been updated to use the new internal
architecture framework. The way is now open for future GDB releases
to include cross-architecture native debugging support (i386 on amd64,
ppc32 on ppc64).
* GNU/Linux's Thread Local Storage (TLS)
GDB now includes support for for the GNU/Linux implementation of
per-thread variables.
* GNU/Linux's Native POSIX Thread Library (NPTL)
GDB's thread code has been updated to work with either the new
GNU/Linux NPTL thread library or the older "LinuxThreads" library.
* Separate debug info.
GDB, in conjunction with BINUTILS, now supports a mechanism for
automatically loading debug information from a separate file. Instead
of shipping full debug and non-debug versions of system libraries,
system integrators can now instead ship just the stripped libraries
and optional debug files.
* DWARF 2 Location Expressions
DWARF 2 Location Expressions allow the compiler to more completely
describe the location of variables (even in optimized code) to the
debugger.
GDB now includes preliminary support for location expressions (support
for DW_OP_piece is still missing).
* Java
A number of long standing bugs that caused GDB to die while starting a
Java application have been fixed. GDB's Java support is now
considered "useable".
2003-08-24 23:21:11 +02:00
* GNU/Linux support for fork, vfork, and exec.
The "catch fork", "catch exec", "catch vfork", and "set follow-fork-mode"
commands are now implemented for GNU/Linux. They require a 2.5.x or later
kernel.
* GDB supports logging output to a file
There are two new commands, "set logging" and "show logging", which can be
used to capture GDB's output to a file.
* The meaning of "detach" has changed for gdbserver
The "detach" command will now resume the application, as documented. To
disconnect from gdbserver and leave it stopped, use the new "disconnect"
command.
* d10v, m68hc11 `regs' command deprecated
The `info registers' command has been updated so that it displays the
registers using a format identical to the old `regs' command.
* Profiling support
A new command, "maint set profile on/off", has been added. This command can
be used to enable or disable profiling while running GDB, to profile a
session or a set of commands. In addition there is a new configure switch,
"--enable-profiling", which will cause GDB to be compiled with profiling
data, for more informative profiling results.
* Default MI syntax changed to "mi2".
The default MI (machine interface) syntax, enabled by the command line
option "-i=mi", has been changed to "mi2". The previous MI syntax,
"mi1", can be enabled by specifying the option "-i=mi1".
Support for the original "mi0" syntax (included in GDB 5.0) has been
removed.
Fix for gdb/192: removed extraneous space when displaying frame level.
Fix for gdb/672: update changelist is now output in mi list format.
Fix for gdb/702: a -var-assign that updates the value now shows up
in a subsequent -var-update.
* New native configurations.
FreeBSD/amd64 x86_64-*-freebsd*
* Multi-arched targets.
HP/PA HPUX11 hppa*-*-hpux*
Renesas M32R/D w/simulator m32r-*-elf*
2003-01-02 Andrew Cagney <ac131313@redhat.com> * valarith.c (value_binop): Delete obsolete code and comments. * configure.host: Ditto. * buildsym.h (make_blockvector): Ditto. * buildsym.c (make_blockvector): Ditto. * defs.h (enum language): Ditto. (chill_demangle): Ditto. * elfread.c (elf_symtab_read): Ditto. * dwarfread.c (CHILL_PRODUCER): Ditto. (set_cu_language): Ditto. (handle_producer): Ditto. * expprint.c (print_subexp): Ditto. * gdbtypes.c (chill_varying_type): Ditto. * gdbtypes.h (builtin_type_chill_bool): Ditto. (builtin_type_chill_char, builtin_type_chill_long): Ditto. (builtin_type_chill_ulong, builtin_type_chill_real): Ditto. (chill_varying_type): Ditto. * language.h (_LANG_chill): Ditto. * language.c (binop_result_type, integral_type): Ditto. (character_type, string_type, structured_type): Ditto. (lang_bool_type, binop_type_check): Ditto. * stabsread.h (os9k_stabs): Ditto. * stabsread.c (os9k_type_vector, dbx_lookup_type): Ditto. (define_symbol, read_type, read_struct_fields): Ditto. (read_array_type, read_enum_type, read_huge_number): Ditto. (read_range_type, start_stabs): Ditto. * symfile.c (init_filename_language_table): Ditto. (add_psymbol_with_dem_name_to_list): Ditto. * symtab.c (symbol_init_language_specific): Ditto. (symbol_init_demangled_name, symbol_demangled_name): Ditto. * symtab.h (struct general_symbol_info): Ditto. (SYMBOL_CHILL_DEMANGLED_NAME): Ditto. * typeprint.c (typedef_print): Ditto. * utils.c (fprintf_symbol_filtered): Ditto. * valops.c (value_cast, search_struct_field, value_slice): Delete obsolete code. (varying_to_slice): Delete function. * value.h (COERCE_VARYING_ARRAY): Delete obsolete macro contents. (varying_to_slice): Delete declaration. * MAINTAINERS: Update.
2003-01-02 15:27:27 +01:00
* OBSOLETE configurations and files
Configurations that have been declared obsolete in this release have
been commented out. Unless there is activity to revive these
configurations, the next release of GDB will have their sources
permanently REMOVED.
Z8000 simulator z8k-zilog-none or z8ksim
Matsushita MN10200 w/simulator mn10200-*-*
H8/500 simulator h8500-hitachi-hms or h8500hms
HP/PA running BSD hppa*-*-bsd*
HP/PA running OSF/1 hppa*-*-osf*
HP/PA Pro target hppa*-*-pro*
PMAX (MIPS) running Mach 3.0 mips*-*-mach3*
Sequent family i[3456]86-sequent-sysv4*
i[3456]86-sequent-sysv*
i[3456]86-sequent-bsd*
Tsqware Sparclet sparclet-*-*
Fujitsu SPARClite sparclite-fujitsu-none or sparclite
* REMOVED configurations and files
V850EA ISA
2003-01-02 Andrew Cagney <ac131313@redhat.com> * valarith.c (value_binop): Delete obsolete code and comments. * configure.host: Ditto. * buildsym.h (make_blockvector): Ditto. * buildsym.c (make_blockvector): Ditto. * defs.h (enum language): Ditto. (chill_demangle): Ditto. * elfread.c (elf_symtab_read): Ditto. * dwarfread.c (CHILL_PRODUCER): Ditto. (set_cu_language): Ditto. (handle_producer): Ditto. * expprint.c (print_subexp): Ditto. * gdbtypes.c (chill_varying_type): Ditto. * gdbtypes.h (builtin_type_chill_bool): Ditto. (builtin_type_chill_char, builtin_type_chill_long): Ditto. (builtin_type_chill_ulong, builtin_type_chill_real): Ditto. (chill_varying_type): Ditto. * language.h (_LANG_chill): Ditto. * language.c (binop_result_type, integral_type): Ditto. (character_type, string_type, structured_type): Ditto. (lang_bool_type, binop_type_check): Ditto. * stabsread.h (os9k_stabs): Ditto. * stabsread.c (os9k_type_vector, dbx_lookup_type): Ditto. (define_symbol, read_type, read_struct_fields): Ditto. (read_array_type, read_enum_type, read_huge_number): Ditto. (read_range_type, start_stabs): Ditto. * symfile.c (init_filename_language_table): Ditto. (add_psymbol_with_dem_name_to_list): Ditto. * symtab.c (symbol_init_language_specific): Ditto. (symbol_init_demangled_name, symbol_demangled_name): Ditto. * symtab.h (struct general_symbol_info): Ditto. (SYMBOL_CHILL_DEMANGLED_NAME): Ditto. * typeprint.c (typedef_print): Ditto. * utils.c (fprintf_symbol_filtered): Ditto. * valops.c (value_cast, search_struct_field, value_slice): Delete obsolete code. (varying_to_slice): Delete function. * value.h (COERCE_VARYING_ARRAY): Delete obsolete macro contents. (varying_to_slice): Delete declaration. * MAINTAINERS: Update.
2003-01-02 15:27:27 +01:00
Motorola Delta 88000 running Sys V m88k-motorola-sysv or delta88
IBM AIX PS/2 i[3456]86-*-aix
i386 running Mach 3.0 i[3456]86-*-mach3*
i386 running Mach i[3456]86-*-mach*
i386 running OSF/1 i[3456]86-*osf1mk*
HP/Apollo 68k Family m68*-apollo*-sysv*,
m68*-apollo*-bsd*,
m68*-hp-bsd*, m68*-hp-hpux*
Argonaut Risc Chip (ARC) arc-*-*
Mitsubishi D30V d30v-*-*
Fujitsu FR30 fr30-*-elf*
OS/9000 i[34]86-*-os9k
I960 with MON960 i960-*-coff
* MIPS $fp behavior changed
The convenience variable $fp, for the MIPS, now consistently returns
the address of the current frame's base. Previously, depending on the
context, $fp could refer to either $sp or the current frame's base
address. See ``8.10 Registers'' in the manual ``Debugging with GDB:
The GNU Source-Level Debugger''.
*** Changes in GDB 5.3:
* GNU/Linux shared library multi-threaded performance improved.
When debugging a multi-threaded application on GNU/Linux, GDB now uses
`/proc', in preference to `ptrace' for memory reads. This may result
in an improvement in the start-up time of multi-threaded, shared
library applications when run under GDB. One GDB user writes: ``loads
shared libs like mad''.
2002-08-04 17:12:09 +02:00
* ``gdbserver'' now supports multi-threaded applications on some targets
2002-08-04 17:12:09 +02:00
Support for debugging multi-threaded applications which use
the GNU/Linux LinuxThreads package has been added for
arm*-*-linux*-gnu*, i[3456]86-*-linux*-gnu*, mips*-*-linux*-gnu*,
powerpc*-*-linux*-gnu*, and sh*-*-linux*-gnu*.
* GDB now supports C/C++ preprocessor macros.
GDB now expands preprocessor macro invocations in C/C++ expressions,
and provides various commands for showing macro definitions and how
they expand.
2002-08-04 02:02:49 +02:00
The new command `macro expand EXPRESSION' expands any macro
invocations in expression, and shows the result.
The new command `show macro MACRO-NAME' shows the definition of the
macro named MACRO-NAME, and where it was defined.
Most compilers don't include information about macros in the debugging
information by default. In GCC 3.1, for example, you need to compile
your program with the options `-gdwarf-2 -g3'. If the macro
information is present in the executable, GDB will read it.
* Multi-arched targets.
DEC Alpha (partial) alpha*-*-*
DEC VAX (partial) vax-*-*
NEC V850 v850-*-*
National Semiconductor NS32000 (partial) ns32k-*-*
Motorola 68000 (partial) m68k-*-*
Motorola MCORE mcore-*-*
* New targets.
Fujitsu FRV architecture added by Red Hat frv*-*-*
* New native configurations
Alpha NetBSD alpha*-*-netbsd*
SH NetBSD sh*-*-netbsdelf*
MIPS NetBSD mips*-*-netbsd*
UltraSPARC NetBSD sparc64-*-netbsd*
* OBSOLETE configurations and files
Configurations that have been declared obsolete in this release have
been commented out. Unless there is activity to revive these
configurations, the next release of GDB will have their sources
permanently REMOVED.
2002-07-14 02:28:46 +02:00
Mitsubishi D30V d30v-*-*
2002-07-16 17:19:19 +02:00
OS/9000 i[34]86-*-os9k
IBM AIX PS/2 i[3456]86-*-aix
2002-07-16 16:30:14 +02:00
Fujitsu FR30 fr30-*-elf*
2002-07-25 01:51:36 +02:00
Motorola Delta 88000 running Sys V m88k-motorola-sysv or delta88
Argonaut Risc Chip (ARC) arc-*-*
i386 running Mach 3.0 i[3456]86-*-mach3*
i386 running Mach i[3456]86-*-mach*
i386 running OSF/1 i[3456]86-*osf1mk*
HP/Apollo 68k Family m68*-apollo*-sysv*,
m68*-apollo*-bsd*,
m68*-hp-bsd*, m68*-hp-hpux*
2002-08-22 23:52:45 +02:00
I960 with MON960 i960-*-coff
2002-07-14 02:28:46 +02:00
2002-08-01 Andrew Cagney <cagney@redhat.com> * NEWS: Menion that CHILL has been made obsolete. * gdbtypes.c (chill_varying_type): Make chill references obsolete. * gdbserver/Makefile.in: Ditto. * stabsread.c (read_range_type): Ditto. * gdbtypes.h: Ditto. * language.c (binop_type_check): Ditto. (binop_result_type): Ditto. (integral_type): Ditto. (character_type): Ditto. (string_type): Ditto. (boolean_type): Ditto. (structured_type): Ditto. (lang_bool_type): Ditto. (binop_type_check): Ditto. * language.h (_LANG_chill): Ditto. * dwarfread.c (set_cu_language): Ditto. * dwarfread.c (CHILL_PRODUCER): Ditto. * dwarfread.c (handle_producer): Ditto. * expression.h (enum exp_opcode): Ditto. * eval.c: Ditto for comments. * typeprint.c (typedef_print) [_LANG_chill]: Ditto. * expprint.c (print_subexp): Ditto. (print_subexp): Ditto. * valops.c (value_cast): Ditto. (search_struct_field): Ditto. * value.h (COERCE_VARYING_ARRAY): Ditto. * symfile.c (init_filename_language_table): Ditto. (add_psymbol_with_dem_name_to_list): Ditto. * valarith.c (value_binop): Ditto. (value_neg): Ditto. * valops.c (value_slice): Ditto. * symtab.h (union language_specific): Ditto. (SYMBOL_INIT_LANGUAGE_SPECIFIC): Ditto. (SYMBOL_DEMANGLED_NAME): Ditto. (SYMBOL_CHILL_DEMANGLED_NAME): Ditto. * defs.h (enum language): Ditto. * symtab.c (got_symtab): Ditto. * utils.c (fprintf_symbol_filtered): Ditto. * ch-typeprint.c: Make file obsolete. * ch-valprint.c: Make file obsolete. * ch-lang.h: Make file obsolete. * ch-exp.c: Make file obsolete. * ch-lang.c: Make file obsolete. * Makefile.in (FLAGS_TO_PASS): Do not pass CHILL or CHILLFLAGS or CHILL_LIB. (TARGET_FLAGS_TO_PASS): Ditto. (CHILLFLAGS): Obsolete. (CHILL): Obsolete. (CHILL_FOR_TARGET): Obsolete. (CHILL_LIB): Obsolete. (SFILES): Remove ch-exp.c, ch-lang.c, ch-typeprint.c and ch-valprint.c. (HFILES_NO_SRCDIR): Remove ch-lang.h. (COMMON_OBS): Remove ch-valprint.o, ch-typeprint.o, ch-exp.o and ch-lang.o. (ch-exp.o, ch-lang.o, ch-typeprint.o, ch-valprint.o): Delete targets. 2002-08-01 Andrew Cagney <cagney@redhat.com> * stabs.texinfo, gdb.texinfo, gdbint.texinfo: Obsolete references to CHILL. 2002-08-01 Andrew Cagney <cagney@redhat.com> * Makefile.in (TARGET_FLAGS_TO_PASS): Remove CHILLFLAGS, CHILL, CHILL_FOR_TARGET and CHILL_LIB. * configure.in (configdirs): Remove gdb.chill. * configure: Regenerate. * lib/gdb.exp: Obsolete references to chill. * gdb.fortran/types.exp: Ditto. * gdb.fortran/exprs.exp: Ditto.
2002-08-01 19:18:35 +02:00
* OBSOLETE languages
CHILL, a Pascal like language used by telecommunications companies.
* REMOVED configurations and files
AMD 29k family via UDI a29k-amd-udi, udi29k
A29K VxWorks a29k-*-vxworks
AMD 29000 embedded, using EBMON a29k-none-none
AMD 29000 embedded with COFF a29k-none-coff
AMD 29000 embedded with a.out a29k-none-aout
testsuite/gdb.hp/gdb.threads-hp/ directory
* New command "set max-user-call-depth <nnn>"
This command allows the user to limit the call depth of user-defined
commands. The default is 1024.
* Changes in FreeBSD/i386 native debugging.
Support for the "generate-core-file" has been added.
* New commands "dump", "append", and "restore".
These commands allow data to be copied from target memory
to a bfd-format or binary file (dump and append), and back
from a file into memory (restore).
* Improved "next/step" support on multi-processor Alpha Tru64.
The previous single-step mechanism could cause unpredictable problems,
including the random appearance of SIGSEGV or SIGTRAP signals. The use
of a software single-step mechanism prevents this.
2002-07-23 23:28:38 +02:00
*** Changes in GDB 5.2.1:
* New targets.
Atmel AVR avr*-*-*
* Bug fixes
gdb/182: gdb/323: gdb/237: On alpha, gdb was reporting:
mdebugread.c:2443: gdb-internal-error: sect_index_data not initialized
Fix, by Joel Brobecker imported from mainline.
gdb/439: gdb/291: On some ELF object files, gdb was reporting:
dwarf2read.c:1072: gdb-internal-error: sect_index_text not initialize
Fix, by Fred Fish, imported from mainline.
Dwarf2 .debug_frame & .eh_frame handler improved in many ways.
Surprisingly enough, it works now.
By Michal Ludvig, imported from mainline.
i386 hardware watchpoint support:
avoid misses on second run for some targets.
By Pierre Muller, imported from mainline.
*** Changes in GDB 5.2:
* New command "set trust-readonly-sections on[off]".
This command is a hint that tells gdb that read-only sections
really are read-only (ie. that their contents will not change).
In this mode, gdb will go to the object file rather than the
target to read memory from read-only sections (such as ".text").
This can be a significant performance improvement on some
(notably embedded) targets.
* New command "generate-core-file" (or "gcore").
2002-02-10 18:34:05 +01:00
This new gdb command allows the user to drop a core file of the child
process state at any time. So far it's been implemented only for
GNU/Linux and Solaris, but should be relatively easily ported to other
hosts. Argument is core file name (defaults to core.<pid>).
* New command line option
GDB now accepts --pid or -p followed by a process id.
* Change in command line behavior -- corefiles vs. process ids.
There is a subtle behavior in the way in which GDB handles
command line arguments. The first non-flag argument is always
a program to debug, but the second non-flag argument may either
be a corefile or a process id. Previously, GDB would attempt to
open the second argument as a corefile, and if that failed, would
issue a superfluous error message and then attempt to attach it as
a process. Now, if the second argument begins with a non-digit,
it will be treated as a corefile. If it begins with a digit,
GDB will attempt to attach it as a process, and if no such process
is found, will then attempt to open it as a corefile.
* Changes in ARM configurations.
Multi-arch support is enabled for all ARM configurations. The ARM/NetBSD
configuration is fully multi-arch.
* New native configurations
ARM NetBSD arm*-*-netbsd*
x86 OpenBSD i[3456]86-*-openbsd*
2002-02-10 18:34:05 +01:00
AMD x86-64 running GNU/Linux x86_64-*-linux-*
Sparc64 running FreeBSD sparc64-*-freebsd*
* New targets
Sanyo XStormy16 xstormy16-elf
* OBSOLETE configurations and files
Configurations that have been declared obsolete in this release have
been commented out. Unless there is activity to revive these
configurations, the next release of GDB will have their sources
permanently REMOVED.
AMD 29k family via UDI a29k-amd-udi, udi29k
A29K VxWorks a29k-*-vxworks
AMD 29000 embedded, using EBMON a29k-none-none
AMD 29000 embedded with COFF a29k-none-coff
AMD 29000 embedded with a.out a29k-none-aout
testsuite/gdb.hp/gdb.threads-hp/ directory
2001-12-01 20:10:00 +01:00
* REMOVED configurations and files
TI TMS320C80 tic80-*-*
2001-12-01 20:34:37 +01:00
WDC 65816 w65-*-*
2001-12-01 22:01:58 +01:00
PowerPC Solaris powerpcle-*-solaris*
PowerPC Windows NT powerpcle-*-cygwin32
PowerPC Netware powerpc-*-netware*
2001-12-01 22:11:41 +01:00
Harris/CXUX m88k m88*-harris-cxux*
Most ns32k hosts and targets ns32k-*-mach3* ns32k-umax-*
ns32k-utek-sysv* ns32k-utek-*
2001-12-01 23:19:30 +01:00
SunOS 4.0.Xi on i386 i[3456]86-*-sunos*
Ultracomputer (29K) running Sym1 a29k-nyu-sym1 a29k-*-kern*
Sony NEWS (68K) running NEWSOS 3.x m68*-sony-sysv news
ISI Optimum V (3.05) under 4.3bsd. m68*-isi-*
2002-01-05 06:54:31 +01:00
Apple Macintosh (MPW) host and target N/A host, powerpc-*-macos*
2001-12-01 20:10:00 +01:00
* Changes to command line processing
The new `--args' feature can be used to specify command-line arguments
for the inferior from gdb's command line.
* Changes to key bindings
There is a new `operate-and-get-next' function bound to `C-o'.
2002-01-24 09:05:31 +01:00
*** Changes in GDB 5.1.1
Fix compile problem on DJGPP.
Fix a problem with floating-point registers on the i386 being
corrupted.
Fix to stop GDB crashing on .debug_str debug info.
Numerous documentation fixes.
Numerous testsuite fixes.
2001-10-31 03:53:17 +01:00
*** Changes in GDB 5.1:
* New native configurations
Alpha FreeBSD alpha*-*-freebsd*
x86 FreeBSD 3.x and 4.x i[3456]86*-freebsd[34]*
2002-02-10 18:34:05 +01:00
MIPS GNU/Linux mips*-*-linux*
2001-07-25 16:46:46 +02:00
MIPS SGI Irix 6.x mips*-sgi-irix6*
ia64 AIX ia64-*-aix*
2002-02-10 18:34:05 +01:00
s390 and s390x GNU/Linux {s390,s390x}-*-linux*
2000-06-08 08:35:40 +02:00
* New targets
2001-07-14 21:10:30 +02:00
Motorola 68HC11 and 68HC12 m68hc11-elf
CRIS cris-axis
2002-02-10 18:34:05 +01:00
UltraSparc running GNU/Linux sparc64-*-linux*
2001-07-14 21:10:30 +02:00
2001-03-23 01:58:48 +01:00
* OBSOLETE configurations and files
2000-06-08 08:35:40 +02:00
x86 FreeBSD before 2.2 i[3456]86*-freebsd{1,2.[01]}*,
Harris/CXUX m88k m88*-harris-cxux*
Most ns32k hosts and targets ns32k-*-mach3* ns32k-umax-*
ns32k-utek-sysv* ns32k-utek-*
2001-04-03 23:56:01 +02:00
TI TMS320C80 tic80-*-*
WDC 65816 w65-*-*
Ultracomputer (29K) running Sym1 a29k-nyu-sym1 a29k-*-kern*
PowerPC Solaris powerpcle-*-solaris*
PowerPC Windows NT powerpcle-*-cygwin32
PowerPC Netware powerpc-*-netware*
2001-04-12 00:39:07 +02:00
SunOS 4.0.Xi on i386 i[3456]86-*-sunos*
Sony NEWS (68K) running NEWSOS 3.x m68*-sony-sysv news
ISI Optimum V (3.05) under 4.3bsd. m68*-isi-*
2001-04-20 01:56:14 +02:00
Apple Macintosh (MPW) host N/A
2000-06-08 08:35:40 +02:00
2001-03-23 01:58:48 +01:00
stuff.c (Program to stuff files into a specially prepared space in kdb)
kdb-start.c (Main loop for the standalone kernel debugger)
Configurations that have been declared obsolete in this release have
been commented out. Unless there is activity to revive these
configurations, the next release of GDB will have their sources
permanently REMOVED.
2001-06-28 05:33:26 +02:00
* REMOVED configurations and files
Altos 3068 m68*-altos-*
Convex c1-*-*, c2-*-*
Pyramid pyramid-*-*
ARM RISCix arm-*-* (as host)
Tahoe tahoe-*-*
2001-06-28 05:33:26 +02:00
ser-ocd.c *-*-*
2000-06-08 08:35:40 +02:00
* GDB has been converted to ISO C.
2001-07-25 16:46:46 +02:00
GDB's source code has been converted to ISO C. In particular, the
2001-07-25 16:46:46 +02:00
sources are fully protoized, and rely on standard headers being
present.
2000-06-08 08:35:40 +02:00
* Other news:
2001-07-25 16:46:46 +02:00
* "info symbol" works on platforms which use COFF, ECOFF, XCOFF, and NLM.
* The MI enabled by default.
The new machine oriented interface (MI) introduced in GDB 5.0 has been
revised and enabled by default. Packages which use GDB as a debugging
engine behind a UI or another front end are encouraged to switch to
using the GDB/MI interface, instead of the old annotations interface
which is now deprecated.
* Support for debugging Pascal programs.
GDB now includes support for debugging Pascal programs. The following
main features are supported:
- Pascal-specific data types such as sets;
- automatic recognition of Pascal sources based on file-name
extension;
- Pascal-style display of data types, variables, and functions;
- a Pascal expression parser.
However, some important features are not yet supported.
- Pascal string operations are not supported at all;
- there are some problems with boolean types;
- Pascal type hexadecimal constants are not supported
because they conflict with the internal variables format;
- support for Pascal objects and classes is not full yet;
- unlike Pascal, GDB is case-sensitive for symbol names.
* Changes in completion.
Commands such as `shell', `run' and `set args', which pass arguments
to inferior programs, now complete on file names, similar to what
users expect at the shell prompt.
Commands which accept locations, such as `disassemble', `print',
`breakpoint', `until', etc. now complete on filenames as well as
program symbols. Thus, if you type "break foob TAB", and the source
files linked into the programs include `foobar.c', that file name will
be one of the candidates for completion. However, file names are not
considered for completion after you typed a colon that delimits a file
name from a name of a function in that file, as in "break foo.c:bar".
`set demangle-style' completes on available demangling styles.
* New platform-independent commands:
It is now possible to define a post-hook for a command as well as a
hook that runs before the command. For more details, see the
documentation of `hookpost' in the GDB manual.
* Changes in GNU/Linux native debugging.
2001-08-02 20:42:18 +02:00
Support for debugging multi-threaded programs has been completely
revised for all platforms except m68k and sparc. You can now debug as
many threads as your system allows you to have.
2001-07-25 16:46:46 +02:00
Attach/detach is supported for multi-threaded programs.
2001-08-02 20:42:18 +02:00
Support for SSE registers was added for x86. This doesn't work for
multi-threaded programs though.
2001-07-25 16:46:46 +02:00
* Changes in MIPS configurations.
2000-06-08 08:35:40 +02:00
Multi-arch support is enabled for all MIPS configurations.
2001-07-25 16:46:46 +02:00
GDB can now be built as native debugger on SGI Irix 6.x systems for
debugging n32 executables. (Debugging 64-bit executables is not yet
supported.)
* Unified support for hardware watchpoints in all x86 configurations.
Most (if not all) native x86 configurations support hardware-assisted
breakpoints and watchpoints in a unified manner. This support
implements debug register sharing between watchpoints, which allows to
put a virtually infinite number of watchpoints on the same address,
and also supports watching regions up to 16 bytes with several debug
registers.
The new maintenance command `maintenance show-debug-regs' toggles
debugging print-outs in functions that insert, remove, and test
watchpoints and hardware breakpoints.
* Changes in the DJGPP native configuration.
New command ``info dos sysinfo'' displays assorted information about
the CPU, OS, memory, and DPMI server.
New commands ``info dos gdt'', ``info dos ldt'', and ``info dos idt''
display information about segment descriptors stored in GDT, LDT, and
IDT.
New commands ``info dos pde'' and ``info dos pte'' display entries
from Page Directory and Page Tables (for now works with CWSDPMI only).
New command ``info dos address-pte'' displays the Page Table entry for
a given linear address.
GDB can now pass command lines longer than 126 characters to the
program being debugged (requires an update to the libdbg.a library
which is part of the DJGPP development kit).
DWARF2 debug info is now supported.
It is now possible to `step' and `next' through calls to `longjmp'.
2001-07-25 16:46:46 +02:00
* Changes in documentation.
All GDB documentation was converted to GFDL, the GNU Free
Documentation License.
Tracepoints-related commands are now fully documented in the GDB
manual.
TUI, the Text-mode User Interface, is now documented in the manual.
Tracepoints-related commands are now fully documented in the GDB
manual.
The "GDB Internals" manual now has an index. It also includes
documentation of `ui_out' functions, GDB coding standards, x86
hardware watchpoints, and memory region attributes.
2001-05-12 03:34:09 +02:00
* GDB's version number moved to ``version.in''
The Makefile variable VERSION has been replaced by the file
``version.in''. People creating GDB distributions should update the
contents of this file.
* gdba.el deleted
GUD support is now a standard part of the EMACS distribution.
*** Changes in GDB 5.0:
1999-04-26 20:34:20 +02:00
* Improved support for debugging FP programs on x86 targets
Unified and much-improved support for debugging floating-point
programs on all x86 targets. In particular, ``info float'' now
displays the FP registers in the same format on all x86 targets, with
greater level of detail.
* Improvements and bugfixes in hardware-assisted watchpoints
It is now possible to watch array elements, struct members, and
bitfields with hardware-assisted watchpoints. Data-read watchpoints
on x86 targets no longer erroneously trigger when the address is
written.
* Improvements in the native DJGPP version of GDB
The distribution now includes all the scripts and auxiliary files
necessary to build the native DJGPP version on MS-DOS/MS-Windows
machines ``out of the box''.
The DJGPP version can now debug programs that use signals. It is
possible to catch signals that happened in the debuggee, deliver
signals to it, interrupt it with Ctrl-C, etc. (Previously, a signal
would kill the program being debugged.) Programs that hook hardware
interrupts (keyboard, timer, etc.) can also be debugged.
It is now possible to debug DJGPP programs that redirect their
standard handles or switch them to raw (as opposed to cooked) mode, or
even close them. The command ``run < foo > bar'' works as expected,
and ``info terminal'' reports useful information about the debuggee's
terminal, including raw/cooked mode, redirection, etc.
The DJGPP version now uses termios functions for console I/O, which
enables debugging graphics programs. Interrupting GDB with Ctrl-C
also works.
DOS-style file names with drive letters are now fully supported by
GDB.
It is now possible to debug DJGPP programs that switch their working
directory. It is also possible to rerun the debuggee any number of
times without restarting GDB; thus, you can use the same setup,
breakpoints, etc. for many debugging sessions.
1999-12-22 22:45:38 +01:00
* New native configurations
ARM GNU/Linux arm*-*-linux*
PowerPC GNU/Linux powerpc-*-linux*
1999-12-22 22:45:38 +01:00
1999-04-26 20:34:20 +02:00
* New targets
1999-08-09 23:36:23 +02:00
Motorola MCore mcore-*-*
1999-07-20 01:30:11 +02:00
x86 VxWorks i[3456]86-*-vxworks*
PowerPC VxWorks powerpc-*-vxworks*
1999-04-26 20:34:20 +02:00
TI TMS320C80 tic80-*-*
1999-06-28 18:06:02 +02:00
* OBSOLETE configurations
Altos 3068 m68*-altos-*
Convex c1-*-*, c2-*-*
1999-07-07 19:31:57 +02:00
Pyramid pyramid-*-*
1999-12-22 22:45:38 +01:00
ARM RISCix arm-*-* (as host)
1999-08-31 03:14:27 +02:00
Tahoe tahoe-*-*
1999-04-26 20:34:20 +02:00
Configurations that have been declared obsolete will be commented out,
but the code will be left in place. If there is no activity to revive
these configurations before the next release of GDB, the sources will
be permanently REMOVED.
* Gould support removed
Support for the Gould PowerNode and NP1 has been removed.
2000-04-10 12:52:19 +02:00
* New features for SVR4
On SVR4 native platforms (such as Solaris), if you attach to a process
without first loading a symbol file, GDB will now attempt to locate and
load symbols from the running process's executable file.
* Many C++ enhancements
C++ support has been greatly improved. Overload resolution now works properly
in almost all cases. RTTI support is on the way.
1999-07-20 01:30:11 +02:00
* Remote targets can connect to a sub-program
A popen(3) style serial-device has been added. This device starts a
sub-process (such as a stand-alone simulator) and then communicates
with that. The sub-program to run is specified using the syntax
``|<program> <args>'' vis:
(gdb) set remotedebug 1
(gdb) target extended-remote |mn10300-elf-sim program-args
1999-07-12 13:15:22 +02:00
* MIPS 64 remote protocol
A long standing bug in the mips64 remote protocol where by GDB
expected certain 32 bit registers (ex SR) to be transfered as 32
instead of 64 bits has been fixed.
The command ``set remote-mips64-transfers-32bit-regs on'' has been
added to provide backward compatibility with older versions of GDB.
1999-08-09 23:36:23 +02:00
* ``set remotebinarydownload'' replaced by ``set remote X-packet''
The command ``set remotebinarydownload'' command has been replaced by
``set remote X-packet''. Other commands in ``set remote'' family
include ``set remote P-packet''.
1999-11-09 02:23:30 +01:00
* Breakpoint commands accept ranges.
The breakpoint commands ``enable'', ``disable'', and ``delete'' now
accept a range of breakpoints, e.g. ``5-7''. The tracepoint command
``tracepoint passcount'' also accepts a range of tracepoints.
2000-04-03 15:24:08 +02:00
* ``apropos'' command added.
The ``apropos'' command searches through command names and
documentation strings, printing out matches, making it much easier to
try to find a command that does what you are looking for.
2000-04-10 12:52:19 +02:00
* New MI interface
A new machine oriented interface (MI) has been added to GDB. This
interface is designed for debug environments running GDB as a separate
process. This is part of the long term libGDB project. See the
"GDB/MI" chapter of the GDB manual for further information. It can be
enabled by configuring with:
2000-04-10 12:52:19 +02:00
.../configure --enable-gdbmi
*** Changes in GDB-4.18:
* New native configurations
HP-UX 10.20 hppa*-*-hpux10.20
HP-UX 11.x hppa*-*-hpux11.0*
2002-02-10 18:34:05 +01:00
M68K GNU/Linux m68*-*-linux*
* New targets
Fujitsu FR30 fr30-*-elf*
Intel StrongARM strongarm-*-*
Mitsubishi D30V d30v-*-*
* OBSOLETE configurations
Gould PowerNode, NP1 np1-*-*, pn-*-*
Configurations that have been declared obsolete will be commented out,
but the code will be left in place. If there is no activity to revive
these configurations before the next release of GDB, the sources will
be permanently REMOVED.
* ANSI/ISO C
As a compatibility experiment, GDB's source files buildsym.h and
buildsym.c have been converted to pure standard C, no longer
containing any K&R compatibility code. We believe that all systems in
use today either come with a standard C compiler, or have a GCC port
available. If this is not true, please report the affected
configuration to bug-gdb@gnu.org immediately. See the README file for
information about getting a standard C compiler if you don't have one
already.
* Readline 2.2
GDB now uses readline 2.2.
* set extension-language
You can now control the mapping between filename extensions and source
languages by using the `set extension-language' command. For instance,
you can ask GDB to treat .c files as C++ by saying
set extension-language .c c++
The command `info extensions' lists all of the recognized extensions
and their associated languages.
* Setting processor type for PowerPC and RS/6000
When GDB is configured for a powerpc*-*-* or an rs6000*-*-* target,
you can use the `set processor' command to specify what variant of the
PowerPC family you are debugging. The command
set processor NAME
sets the PowerPC/RS6000 variant to NAME. GDB knows about the
following PowerPC and RS6000 variants:
ppc-uisa PowerPC UISA - a PPC processor as viewed by user-level code
rs6000 IBM RS6000 ("POWER") architecture, user-level view
403 IBM PowerPC 403
403GC IBM PowerPC 403GC
505 Motorola PowerPC 505
860 Motorola PowerPC 860 or 850
601 Motorola PowerPC 601
602 Motorola PowerPC 602
603 Motorola/IBM PowerPC 603 or 603e
604 Motorola PowerPC 604 or 604e
750 Motorola/IBM PowerPC 750 or 750
At the moment, this command just tells GDB what to name the
special-purpose processor registers. Since almost all the affected
registers are inaccessible to user-level programs, this command is
only useful for remote debugging in its present form.
* HP-UX support
Thanks to a major code donation from Hewlett-Packard, GDB now has much
more extensive support for HP-UX. Added features include shared
library support, kernel threads and hardware watchpoints for 11.00,
support for HP's ANSI C and C++ compilers, and a compatibility mode
for xdb and dbx commands.
* Catchpoints
HP's donation includes the new concept of catchpoints, which is a
generalization of the old catch command. On HP-UX, it is now possible
to catch exec, fork, and vfork, as well as library loading.
This means that the existing catch command has changed; its first
argument now specifies the type of catch to be set up. See the
output of "help catch" for a list of catchpoint types.
* Debugging across forks
On HP-UX, you can choose which process to debug when a fork() happens
in the inferior.
* TUI
HP has donated a curses-based terminal user interface (TUI). To get
it, build with --enable-tui. Although this can be enabled for any
configuration, at present it only works for native HP debugging.
* GDB remote protocol additions
A new protocol packet 'X' that writes binary data is now available.
Default behavior is to try 'X', then drop back to 'M' if the stub
fails to respond. The settable variable `remotebinarydownload'
allows explicit control over the use of 'X'.
For 64-bit targets, the memory packets ('M' and 'm') can now contain a
full 64-bit address. The command
set remoteaddresssize 32
can be used to revert to the old behaviour. For existing remote stubs
the change should not be noticed, as the additional address information
will be discarded.
In order to assist in debugging stubs, you may use the maintenance
command `packet' to send any text string to the stub. For instance,
maint packet heythere
sends the packet "$heythere#<checksum>". Note that it is very easy to
disrupt a debugging session by sending the wrong packet at the wrong
time.
The compare-sections command allows you to compare section data on the
target to what is in the executable file without uploading or
downloading, by comparing CRC checksums.
* Tracing can collect general expressions
You may now collect general expressions at tracepoints. This requires
further additions to the target-side stub; see tracepoint.c and
doc/agentexpr.texi for further details.
* mask-address variable for Mips
For Mips targets, you may control the zeroing of the upper 32 bits of
a 64-bit address by entering `set mask-address on'. This is mainly
of interest to users of embedded R4xxx and R5xxx processors.
* Higher serial baud rates
GDB's serial code now allows you to specify baud rates 57600, 115200,
230400, and 460800 baud. (Note that your host system may not be able
to achieve all of these rates.)
* i960 simulator
The i960 configuration now includes an initial implementation of a
builtin simulator, contributed by Jim Wilson.
*** Changes in GDB-4.17:
* New native configurations
Alpha GNU/Linux alpha*-*-linux*
Unixware 2.x i[3456]86-unixware2*
Irix 6.x mips*-sgi-irix6*
PowerPC GNU/Linux powerpc-*-linux*
PowerPC Solaris powerpcle-*-solaris*
Sparc GNU/Linux sparc-*-linux*
Motorola sysV68 R3V7.1 m68k-motorola-sysv
* New targets
Argonaut Risc Chip (ARC) arc-*-*
Hitachi H8/300S h8300*-*-*
Matsushita MN10200 w/simulator mn10200-*-*
Matsushita MN10300 w/simulator mn10300-*-*
MIPS NEC VR4100 mips64*vr4100*{,el}-*-elf*
MIPS NEC VR5000 mips64*vr5000*{,el}-*-elf*
MIPS Toshiba TX39 mips64*tx39*{,el}-*-elf*
Mitsubishi D10V w/simulator d10v-*-*
Mitsubishi M32R/D w/simulator m32r-*-elf*
Tsqware Sparclet sparclet-*-*
NEC V850 w/simulator v850-*-*
* New debugging protocols
ARM with RDI protocol arm*-*-*
M68K with dBUG monitor m68*-*-{aout,coff,elf}
DDB and LSI variants of PMON protocol mips*-*-*
PowerPC with DINK32 monitor powerpc{,le}-*-eabi
PowerPC with SDS protocol powerpc{,le}-*-eabi
Macraigor OCD (Wiggler) devices powerpc{,le}-*-eabi
* DWARF 2
All configurations can now understand and use the DWARF 2 debugging
format. The choice is automatic, if the symbol file contains DWARF 2
information.
* Java frontend
GDB now includes basic Java language support. This support is
only useful with Java compilers that produce native machine code.
* solib-absolute-prefix and solib-search-path
For SunOS and SVR4 shared libraries, you may now set the prefix for
loading absolute shared library symbol files, and the search path for
locating non-absolute shared library symbol files.
* Live range splitting
GDB can now effectively debug code for which GCC has performed live
range splitting as part of its optimization. See gdb/doc/LRS for
more details on the expected format of the stabs information.
* Hurd support
GDB's support for the GNU Hurd, including thread debugging, has been
updated to work with current versions of the Hurd.
* ARM Thumb support
GDB's ARM target configuration now handles the ARM7T (Thumb) 16-bit
instruction set. ARM GDB automatically detects when Thumb
instructions are in use, and adjusts disassembly and backtracing
accordingly.
* MIPS16 support
GDB's MIPS target configurations now handle the MIP16 16-bit
instruction set.
* Overlay support
GDB now includes support for overlays; if an executable has been
linked such that multiple sections are based at the same address, GDB
will decide which section to use for symbolic info. You can choose to
control the decision manually, using overlay commands, or implement
additional target-side support and use "overlay load-target" to bring
in the overlay mapping. Do "help overlay" for more detail.
* info symbol
The command "info symbol <address>" displays information about
the symbol at the specified address.
* Trace support
The standard remote protocol now includes an extension that allows
asynchronous collection and display of trace data. This requires
extensive support in the target-side debugging stub. Tracing mode
includes a new interaction mode in GDB and new commands: see the
file tracepoint.c for more details.
* MIPS simulator
Configurations for embedded MIPS now include a simulator contributed
by Cygnus Solutions. The simulator supports the instruction sets
of most MIPS variants.
* Sparc simulator
Sparc configurations may now include the ERC32 simulator contributed
by the European Space Agency. The simulator is not built into
Sparc targets by default; configure with --enable-sim to include it.
* set architecture
For target configurations that may include multiple variants of a
basic architecture (such as MIPS and SH), you may now set the
architecture explicitly. "set arch" sets, "info arch" lists
the possible architectures.
*** Changes in GDB-4.16:
* New native configurations
Windows 95, x86 Windows NT i[345]86-*-cygwin32
M68K NetBSD m68k-*-netbsd*
PowerPC AIX 4.x powerpc-*-aix*
PowerPC MacOS powerpc-*-macos*
PowerPC Windows NT powerpcle-*-cygwin32
RS/6000 AIX 4.x rs6000-*-aix4*
* New targets
ARM with RDP protocol arm-*-*
I960 with MON960 i960-*-coff
MIPS VxWorks mips*-*-vxworks*
MIPS VR4300 with PMON mips64*vr4300{,el}-*-elf*
PowerPC with PPCBUG monitor powerpc{,le}-*-eabi*
Hitachi SH3 sh-*-*
Matra Sparclet sparclet-*-*
* PowerPC simulator
The powerpc-eabi configuration now includes the PSIM simulator,
contributed by Andrew Cagney, with assistance from Mike Meissner.
PSIM is a very elaborate model of the PowerPC, including not only
basic instruction set execution, but also details of execution unit
performance and I/O hardware. See sim/ppc/README for more details.
* Solaris 2.5
GDB now works with Solaris 2.5.
* Windows 95/NT native
GDB will now work as a native debugger on Windows 95 and Windows NT.
To build it from source, you must use the "gnu-win32" environment,
which uses a DLL to emulate enough of Unix to run the GNU tools.
Further information, binaries, and sources are available at
ftp.cygnus.com, under pub/gnu-win32.
* dont-repeat command
If a user-defined command includes the command `dont-repeat', then the
command will not be repeated if the user just types return. This is
useful if the command is time-consuming to run, so that accidental
extra keystrokes don't run the same command many times.
* Send break instead of ^C
The standard remote protocol now includes an option to send a break
rather than a ^C to the target in order to interrupt it. By default,
GDB will send ^C; to send a break, set the variable `remotebreak' to 1.
* Remote protocol timeout
The standard remote protocol includes a new variable `remotetimeout'
that allows you to set the number of seconds before GDB gives up trying
to read from the target. The default value is 2.
* Automatic tracking of dynamic object loading (HPUX and Solaris only)
By default GDB will automatically keep track of objects as they are
loaded and unloaded by the dynamic linker. By using the command `set
stop-on-solib-events 1' you can arrange for GDB to stop the inferior
when shared library events occur, thus allowing you to set breakpoints
in shared libraries which are explicitly loaded by the inferior.
Note this feature does not work on hpux8. On hpux9 you must link
/usr/lib/end.o into your program. This feature should work
automatically on hpux10.
* Irix 5.x hardware watchpoint support
Irix 5 configurations now support the use of hardware watchpoints.
* Mips protocol "SYN garbage limit"
When debugging a Mips target using the `target mips' protocol, you
may set the number of characters that GDB will ignore by setting
the `syn-garbage-limit'. A value of -1 means that GDB will ignore
every character. The default value is 1050.
* Recording and replaying remote debug sessions
If you set `remotelogfile' to the name of a file, gdb will write to it
a recording of a remote debug session. This recording may then be
replayed back to gdb using "gdbreplay". See gdbserver/README for
details. This is useful when you have a problem with GDB while doing
remote debugging; you can make a recording of the session and send it
to someone else, who can then recreate the problem.
* Speedups for remote debugging
GDB includes speedups for downloading and stepping MIPS systems using
the IDT monitor, fast downloads to the Hitachi SH E7000 emulator,
and more efficient S-record downloading.
* Memory use reductions and statistics collection
GDB now uses less memory and reports statistics about memory usage.
Try the `maint print statistics' command, for example.
*** Changes in GDB-4.15:
* Psymtabs for XCOFF
The symbol reader for AIX GDB now uses partial symbol tables. This
can greatly improve startup time, especially for large executables.
* Remote targets use caching
Remote targets now use a data cache to speed up communication with the
remote side. The data cache could lead to incorrect results because
it doesn't know about volatile variables, thus making it impossible to
debug targets which use memory mapped I/O devices. `set remotecache
off' turns the the data cache off.
* Remote targets may have threads
The standard remote protocol now includes support for multiple threads
in the target system, using new protocol commands 'H' and 'T'. See
gdb/remote.c for details.
* NetROM support
If GDB is configured with `--enable-netrom', then it will include
support for the NetROM ROM emulator from XLNT Designs. The NetROM
acts as though it is a bank of ROM on the target board, but you can
write into it over the network. GDB's support consists only of
support for fast loading into the emulated ROM; to debug, you must use
another protocol, such as standard remote protocol. The usual
sequence is something like
target nrom <netrom-hostname>
load <prog>
target remote <netrom-hostname>:1235
* Macintosh host
GDB now includes support for the Apple Macintosh, as a host only. It
may be run as either an MPW tool or as a standalone application, and
it can debug through the serial port. All the usual GDB commands are
available, but to the target command, you must supply "serial" as the
device type instead of "/dev/ttyXX". See mpw-README in the main
directory for more information on how to build. The MPW configuration
scripts */mpw-config.in support only a few targets, and only the
mips-idt-ecoff target has been tested.
* Autoconf
GDB configuration now uses autoconf. This is not user-visible,
but does simplify configuration and building.
* hpux10
GDB now supports hpux10.
*** Changes in GDB-4.14:
* New native configurations
x86 FreeBSD i[345]86-*-freebsd
x86 NetBSD i[345]86-*-netbsd
NS32k NetBSD ns32k-*-netbsd
Sparc NetBSD sparc-*-netbsd
* New targets
A29K VxWorks a29k-*-vxworks
HP PA PRO embedded (WinBond W89K & Oki OP50N) hppa*-*-pro*
CPU32 EST-300 emulator m68*-*-est*
PowerPC ELF powerpc-*-elf
WDC 65816 w65-*-*
* Alpha OSF/1 support for procfs
GDB now supports procfs under OSF/1-2.x and higher, which makes it
possible to attach to running processes. As the mounting of the /proc
filesystem is optional on the Alpha, GDB automatically determines
the availability of /proc during startup. This can lead to problems
if /proc is unmounted after GDB has been started.
* Arguments to user-defined commands
User commands may accept up to 10 arguments separated by whitespace.
Arguments are accessed within the user command via $arg0..$arg9. A
trivial example:
define adder
print $arg0 + $arg1 + $arg2
To execute the command use:
adder 1 2 3
Defines the command "adder" which prints the sum of its three arguments.
Note the arguments are text substitutions, so they may reference variables,
use complex expressions, or even perform inferior function calls.
* New `if' and `while' commands
This makes it possible to write more sophisticated user-defined
commands. Both commands take a single argument, which is the
expression to evaluate, and must be followed by the commands to
execute, one per line, if the expression is nonzero, the list being
terminated by the word `end'. The `if' command list may include an
`else' word, which causes the following commands to be executed only
if the expression is zero.
* Fortran source language mode
GDB now includes partial support for Fortran 77. It will recognize
Fortran programs and can evaluate a subset of Fortran expressions, but
variables and functions may not be handled correctly. GDB will work
with G77, but does not yet know much about symbols emitted by other
Fortran compilers.
* Better HPUX support
Most debugging facilities now work on dynamic executables for HPPAs
running hpux9 or later. You can attach to running dynamically linked
processes, but by default the dynamic libraries will be read-only, so
for instance you won't be able to put breakpoints in them. To change
that behavior do the following before running the program:
adb -w a.out
__dld_flags?W 0x5
control-d
This will cause the libraries to be mapped private and read-write.
To revert to the normal behavior, do this:
adb -w a.out
__dld_flags?W 0x4
control-d
You cannot set breakpoints or examine data in the library until after
the library is loaded if the function/data symbols do not have
external linkage.
GDB can now also read debug symbols produced by the HP C compiler on
HPPAs (sorry, no C++, Fortran or 68k support).
* Target byte order now dynamically selectable
You can choose which byte order to use with a target system, via the
commands "set endian big" and "set endian little", and you can see the
current setting by using "show endian". You can also give the command
"set endian auto", in which case GDB will use the byte order
associated with the executable. Currently, only embedded MIPS
configurations support dynamic selection of target byte order.
* New DOS host serial code
This version uses DPMI interrupts to handle buffered I/O, so you
no longer need to run asynctsr when debugging boards connected to
a PC's serial port.
*** Changes in GDB-4.13:
* New "complete" command
This lists all the possible completions for the rest of the line, if it
were to be given as a command itself. This is intended for use by emacs.
* Trailing space optional in prompt
"set prompt" no longer adds a space for you after the prompt you set. This
allows you to set a prompt which ends in a space or one that does not.
* Breakpoint hit counts
"info break" now displays a count of the number of times the breakpoint
has been hit. This is especially useful in conjunction with "ignore"; you
can ignore a large number of breakpoint hits, look at the breakpoint info
to see how many times the breakpoint was hit, then run again, ignoring one
less than that number, and this will get you quickly to the last hit of
that breakpoint.
* Ability to stop printing at NULL character
"set print null-stop" will cause GDB to stop printing the characters of
an array when the first NULL is encountered. This is useful when large
arrays actually contain only short strings.
* Shared library breakpoints
In SunOS 4.x, SVR4, and Alpha OSF/1 configurations, you can now set
breakpoints in shared libraries before the executable is run.
* Hardware watchpoints
There is a new hardware breakpoint for the watch command for sparclite
targets. See gdb/sparclite/hw_breakpoint.note.
2002-02-10 18:34:05 +01:00
Hardware watchpoints are also now supported under GNU/Linux.
* Annotations
Annotations have been added. These are for use with graphical interfaces,
and are still experimental. Currently only gdba.el uses these.
* Improved Irix 5 support
GDB now works properly with Irix 5.2.
* Improved HPPA support
GDB now works properly with the latest GCC and GAS.
* New native configurations
Sequent PTX4 i[34]86-sequent-ptx4
HPPA running OSF/1 hppa*-*-osf*
Atari TT running SVR4 m68*-*-sysv4*
RS/6000 LynxOS rs6000-*-lynxos*
* New targets
OS/9000 i[34]86-*-os9k
MIPS R4000 mips64*{,el}-*-{ecoff,elf}
Sparc64 sparc64-*-*
* Hitachi SH7000 and E7000-PC ICE support
There is now support for communicating with the Hitachi E7000-PC ICE.
This is available automatically when GDB is configured for the SH.
* Fixes
As usual, a variety of small fixes and improvements, both generic
and configuration-specific. See the ChangeLog for more detail.
*** Changes in GDB-4.12:
* Irix 5 is now supported
* HPPA support
GDB-4.12 on the HPPA has a number of changes which make it unable
to debug the output from the currently released versions of GCC and
GAS (GCC 2.5.8 and GAS-2.2 or PAGAS-1.36). Until the next major release
of GCC and GAS, versions of these tools designed to work with GDB-4.12
can be retrieved via anonymous ftp from jaguar.cs.utah.edu:/dist.
*** Changes in GDB-4.11:
* User visible changes:
* Remote Debugging
The "set remotedebug" option is now consistent between the mips remote
target, remote targets using the gdb-specific protocol, UDI (AMD's
debug protocol for the 29k) and the 88k bug monitor. It is now an
integer specifying a debug level (normally 0 or 1, but 2 means more
debugging info for the mips target).
* DEC Alpha native support
GDB now works on the DEC Alpha. GCC 2.4.5 does not produce usable
debug info, but GDB works fairly well with the DEC compiler and should
work with a future GCC release. See the README file for a few
Alpha-specific notes.
* Preliminary thread implementation
GDB now has preliminary thread support for both SGI/Irix and LynxOS.
* LynxOS native and target support for 386
This release has been hosted on LynxOS 2.2, and also can be configured
to remotely debug programs running under LynxOS (see gdb/gdbserver/README
for details).
* Improvements in C++ mangling/demangling.
This release has much better g++ debugging, specifically in name
mangling/demangling, virtual function calls, print virtual table,
call methods, ...etc.
*** Changes in GDB-4.10:
* User visible changes:
Remote debugging using the GDB-specific (`target remote') protocol now
supports the `load' command. This is only useful if you have some
other way of getting the stub to the target system, and you can put it
somewhere in memory where it won't get clobbered by the download.
Filename completion now works.
When run under emacs mode, the "info line" command now causes the
arrow to point to the line specified. Also, "info line" prints
addresses in symbolic form (as well as hex).
All vxworks based targets now support a user settable option, called
vxworks-timeout. This option represents the number of seconds gdb
should wait for responses to rpc's. You might want to use this if
your vxworks target is, perhaps, a slow software simulator or happens
to be on the far side of a thin network line.
* DEC alpha support
This release contains support for using a DEC alpha as a GDB host for
cross debugging. Native alpha debugging is not supported yet.
*** Changes in GDB-4.9:
* Testsuite
This is the first GDB release which is accompanied by a matching testsuite.
The testsuite requires installation of dejagnu, which should be available
via ftp from most sites that carry GNU software.
* C++ demangling
'Cfront' style demangling has had its name changed to 'ARM' style, to
emphasize that it was written from the specifications in the C++ Annotated
Reference Manual, not necessarily to be compatible with AT&T cfront. Despite
disclaimers, it still generated too much confusion with users attempting to
use gdb with AT&T cfront.
* Simulators
GDB now uses a standard remote interface to a simulator library.
So far, the library contains simulators for the Zilog Z8001/2, the
Hitachi H8/300, H8/500 and Super-H.
* New targets supported
H8/300 simulator h8300-hitachi-hms or h8300hms
H8/500 simulator h8500-hitachi-hms or h8500hms
SH simulator sh-hitachi-hms or sh
Z8000 simulator z8k-zilog-none or z8ksim
IDT MIPS board over serial line mips-idt-ecoff
Cross-debugging to GO32 targets is supported. It requires a custom
version of the i386-stub.c module which is integrated with the
GO32 memory extender.
* New remote protocols
MIPS remote debugging protocol.
* New source languages supported
This version includes preliminary support for Chill, a Pascal like language
used by telecommunications companies. Chill support is also being integrated
into the GNU compiler, but we don't know when it will be publically available.
*** Changes in GDB-4.8:
* HP Precision Architecture supported
GDB now supports HP PA-RISC machines running HPUX. A preliminary
version of this support was available as a set of patches from the
University of Utah. GDB does not support debugging of programs
compiled with the HP compiler, because HP will not document their file
format. Instead, you must use GCC (version 2.3.2 or later) and PA-GAS
(as available from jaguar.cs.utah.edu:/dist/pa-gas.u4.tar.Z).
Many problems in the preliminary version have been fixed.
* Faster and better demangling
We have improved template demangling and fixed numerous bugs in the GNU style
demangler. It can now handle type modifiers such as `static' or `const'. Wide
character types (wchar_t) are now supported. Demangling of each symbol is now
only done once, and is cached when the symbol table for a file is read in.
This results in a small increase in memory usage for C programs, a moderate
increase in memory usage for C++ programs, and a fantastic speedup in
symbol lookups.
`Cfront' style demangling still doesn't work with AT&T cfront. It was written
from the specifications in the Annotated Reference Manual, which AT&T's
compiler does not actually implement.
* G++ multiple inheritance compiler problem
In the 2.3.2 release of gcc/g++, how the compiler resolves multiple
inheritance lattices was reworked to properly discover ambiguities. We
recently found an example which causes this new algorithm to fail in a
very subtle way, producing bad debug information for those classes.
The file 'gcc.patch' (in this directory) can be applied to gcc to
circumvent the problem. A future GCC release will contain a complete
fix.
The previous G++ debug info problem (mentioned below for the gdb-4.7
release) is fixed in gcc version 2.3.2.
* Improved configure script
The `configure' script will now attempt to guess your system type if
you don't supply a host system type. The old scheme of supplying a
host system triplet is preferable over using this. All the magic is
done in the new `config.guess' script. Examine it for details.
We have also brought our configure script much more in line with the FSF's
version. It now supports the --with-xxx options. In particular,
`--with-minimal-bfd' can be used to make the GDB binary image smaller.
The resulting GDB will not be able to read arbitrary object file formats --
only the format ``expected'' to be used on the configured target system.
We hope to make this the default in a future release.
* Documentation improvements
There's new internal documentation on how to modify GDB, and how to
produce clean changes to the code. We implore people to read it
before submitting changes.
The GDB manual uses new, sexy Texinfo conditionals, rather than arcane
M4 macros. The new texinfo.tex is provided in this release. Pre-built
`info' files are also provided. To build `info' files from scratch,
you will need the latest `makeinfo' release, which will be available in
a future texinfo-X.Y release.
*NOTE* The new texinfo.tex can cause old versions of TeX to hang.
We're not sure exactly which versions have this problem, but it has
been seen in 3.0. We highly recommend upgrading to TeX version 3.141
or better. If that isn't possible, there is a patch in
`texinfo/tex3patch' that will modify `texinfo/texinfo.tex' to work
around this problem.
* New features
GDB now supports array constants that can be used in expressions typed in by
the user. The syntax is `{element, element, ...}'. Ie: you can now type
`print {1, 2, 3}', and it will build up an array in memory malloc'd in
the target program.
The new directory `gdb/sparclite' contains a program that demonstrates
how the sparc-stub.c remote stub runs on a Fujitsu SPARClite processor.
* New native hosts supported
HP/PA-RISC under HPUX using GNU tools hppa1.1-hp-hpux
386 CPUs running SCO Unix 3.2v4 i386-unknown-sco3.2v4
* New targets supported
AMD 29k family via UDI a29k-amd-udi or udi29k
* New file formats supported
BFD now supports reading HP/PA-RISC executables (SOM file format?),
HPUX core files, and SCO 3.2v2 core files.
* Major bug fixes
Attaching to processes now works again; thanks for the many bug reports.
We have also stomped on a bunch of core dumps caused by
printf_filtered("%s") problems.
We eliminated a copyright problem on the rpc and ptrace header files
for VxWorks, which was discovered at the last minute during the 4.7
release. You should now be able to build a VxWorks GDB.
You can now interrupt gdb while an attached process is running. This
will cause the attached process to stop, and give control back to GDB.
We fixed problems caused by using too many file descriptors
for reading symbols from object files and libraries. This was
especially a problem for programs that used many (~100) shared
libraries.
The `step' command now only enters a subroutine if there is line number
information for the subroutine. Otherwise it acts like the `next'
command. Previously, `step' would enter subroutines if there was
any debugging information about the routine. This avoids problems
when using `cc -g1' on MIPS machines.
* Internal improvements
GDB's internal interfaces have been improved to make it easier to support
debugging of multiple languages in the future.
GDB now uses a common structure for symbol information internally.
Minimal symbols (derived from linkage symbols in object files), partial
symbols (from a quick scan of debug information), and full symbols
contain a common subset of information, making it easier to write
shared code that handles any of them.
* New command line options
We now accept --silent as an alias for --quiet.
* Mmalloc licensing
The memory-mapped-malloc library is now licensed under the GNU Library
General Public License.
*** Changes in GDB-4.7:
* Host/native/target split
GDB has had some major internal surgery to untangle the support for
hosts and remote targets. Now, when you configure GDB for a remote
target, it will no longer load in all of the support for debugging
local programs on the host. When fully completed and tested, this will
ensure that arbitrary host/target combinations are possible.
The primary conceptual shift is to separate the non-portable code in
GDB into three categories. Host specific code is required any time GDB
is compiled on that host, regardless of the target. Target specific
code relates to the peculiarities of the target, but can be compiled on
any host. Native specific code is everything else: it can only be
built when the host and target are the same system. Child process
handling and core file support are two common `native' examples.
GDB's use of /proc for controlling Unix child processes is now cleaner.
It has been split out into a single module under the `target_ops' vector,
plus two native-dependent functions for each system that uses /proc.
* New hosts supported
HP/Apollo 68k (under the BSD domain) m68k-apollo-bsd or apollo68bsd
386 CPUs running various BSD ports i386-unknown-bsd or 386bsd
386 CPUs running SCO Unix i386-unknown-scosysv322 or i386sco
* New targets supported
Fujitsu SPARClite sparclite-fujitsu-none or sparclite
68030 and CPU32 m68030-*-*, m68332-*-*
* New native hosts supported
386 CPUs running various BSD ports i386-unknown-bsd or 386bsd
(386bsd is not well tested yet)
386 CPUs running SCO Unix i386-unknown-scosysv322 or sco
* New file formats supported
BFD now supports COFF files for the Zilog Z8000 microprocessor. It
supports reading of `a.out.adobe' object files, which are an a.out
format extended with minimal information about multiple sections.
* New commands
`show copying' is the same as the old `info copying'.
`show warranty' is the same as `info warrantee'.
These were renamed for consistency. The old commands continue to work.
`info handle' is a new alias for `info signals'.
You can now define pre-command hooks, which attach arbitrary command
scripts to any command. The commands in the hook will be executed
prior to the user's command. You can also create a hook which will be
executed whenever the program stops. See gdb.texinfo.
* C++ improvements
We now deal with Cfront style name mangling, and can even extract type
info from mangled symbols. GDB can automatically figure out which
symbol mangling style your C++ compiler uses.
Calling of methods and virtual functions has been improved as well.
* Major bug fixes
The crash that occured when debugging Sun Ansi-C compiled binaries is
fixed. This was due to mishandling of the extra N_SO stabs output
by the compiler.
We also finally got Ultrix 4.2 running in house, and fixed core file
support, with help from a dozen people on the net.
John M. Farrell discovered that the reason that single-stepping was so
slow on all of the Mips based platforms (primarily SGI and DEC) was
that we were trying to demangle and lookup a symbol used for internal
purposes on every instruction that was being stepped through. Changing
the name of that symbol so that it couldn't be mistaken for a C++
mangled symbol sped things up a great deal.
Rich Pixley sped up symbol lookups in general by getting much smarter
about when C++ symbol mangling is necessary. This should make symbol
completion (TAB on the command line) much faster. It's not as fast as
we'd like, but it's significantly faster than gdb-4.6.
* AMD 29k support
A new user controllable variable 'call_scratch_address' can
specify the location of a scratch area to be used when GDB
calls a function in the target. This is necessary because the
usual method of putting the scratch area on the stack does not work
in systems that have separate instruction and data spaces.
We integrated changes to support the 29k UDI (Universal Debugger
Interface), but discovered at the last minute that we didn't have all
of the appropriate copyright paperwork. We are working with AMD to
resolve this, and hope to have it available soon.
* Remote interfaces
We have sped up the remote serial line protocol, especially for targets
with lots of registers. It now supports a new `expedited status' ('T')
message which can be used in place of the existing 'S' status message.
This allows the remote stub to send only the registers that GDB
needs to make a quick decision about single-stepping or conditional
breakpoints, eliminating the need to fetch the entire register set for
each instruction being stepped through.
The GDB remote serial protocol now implements a write-through cache for
registers, only re-reading the registers if the target has run.
There is also a new remote serial stub for SPARC processors. You can
find it in gdb-4.7/gdb/sparc-stub.c. This was written to support the
Fujitsu SPARClite processor, but will run on any stand-alone SPARC
processor with a serial port.
* Configuration
Configure.in files have become much easier to read and modify. A new
`table driven' format makes it more obvious what configurations are
supported, and what files each one uses.
* Library changes
There is a new opcodes library which will eventually contain all of the
disassembly routines and opcode tables. At present, it only contains
Sparc and Z8000 routines. This will allow the assembler, debugger, and
disassembler (binutils/objdump) to share these routines.
The libiberty library is now copylefted under the GNU Library General
Public License. This allows more liberal use, and was done so libg++
can use it. This makes no difference to GDB, since the Library License
grants all the rights from the General Public License.
* Documentation
The file gdb-4.7/gdb/doc/stabs.texinfo is a (relatively) complete
reference to the stabs symbol info used by the debugger. It is (as far
as we know) the only published document on this fascinating topic. We
encourage you to read it, compare it to the stabs information on your
system, and send improvements on the document in general (to
bug-gdb@prep.ai.mit.edu).
And, of course, many bugs have been fixed.
*** Changes in GDB-4.6:
* Better support for C++ function names
GDB now accepts as input the "demangled form" of C++ overloaded function
names and member function names, and can do command completion on such names
(using TAB, TAB-TAB, and ESC-?). The names have to be quoted with a pair of
single quotes. Examples are 'func (int, long)' and 'obj::operator==(obj&)'.
Make use of command completion, it is your friend.
GDB also now accepts a variety of C++ mangled symbol formats. They are
the GNU g++ style, the Cfront (ARM) style, and the Lucid (lcc) style.
You can tell GDB which format to use by doing a 'set demangle-style {gnu,
lucid, cfront, auto}'. 'gnu' is the default. Do a 'set demangle-style foo'
for the list of formats.
* G++ symbol mangling problem
Recent versions of gcc have a bug in how they emit debugging information for
C++ methods (when using dbx-style stabs). The file 'gcc.patch' (in this
directory) can be applied to gcc to fix the problem. Alternatively, if you
can't fix gcc, you can #define GCC_MANGLE_BUG when compling gdb/symtab.c. The
usual symptom is difficulty with setting breakpoints on methods. GDB complains
about the method being non-existent. (We believe that version 2.2.2 of GCC has
this problem.)
* New 'maintenance' command
All of the commands related to hacking GDB internals have been moved out of
the main command set, and now live behind the 'maintenance' command. This
can also be abbreviated as 'mt'. The following changes were made:
dump-me -> maintenance dump-me
info all-breakpoints -> maintenance info breakpoints
printmsyms -> maintenance print msyms
printobjfiles -> maintenance print objfiles
printpsyms -> maintenance print psymbols
printsyms -> maintenance print symbols
The following commands are new:
maintenance demangle Call internal GDB demangler routine to
demangle a C++ link name and prints the result.
maintenance print type Print a type chain for a given symbol
* Change to .gdbinit file processing
We now read the $HOME/.gdbinit file before processing the argv arguments
(e.g. reading symbol files or core files). This allows global parameters to
be set, which will apply during the symbol reading. The ./.gdbinit is still
read after argv processing.
* New hosts supported
Solaris-2.0 !!! sparc-sun-solaris2 or sun4sol2
2002-02-10 18:34:05 +01:00
GNU/Linux support i386-unknown-linux or linux
We are also including code to support the HP/PA running BSD and HPUX. This
is almost guaranteed not to work, as we didn't have time to test or build it
for this release. We are including it so that the more adventurous (or
masochistic) of you can play with it. We also had major problems with the
fact that the compiler that we got from HP doesn't support the -g option.
It costs extra.
* New targets supported
Hitachi H8/300 h8300-hitachi-hms or h8300hms
* More smarts about finding #include files
GDB now remembers the compilation directory for all include files, and for
all files from which C is generated (like yacc and lex sources). This
greatly improves GDB's ability to find yacc/lex sources, and include files,
especially if you are debugging your program from a directory different from
the one that contains your sources.
We also fixed a bug which caused difficulty with listing and setting
breakpoints in include files which contain C code. (In the past, you had to
try twice in order to list an include file that you hadn't looked at before.)
* Interesting infernals change
GDB now deals with arbitrary numbers of sections, where the symbols for each
section must be relocated relative to that section's landing place in the
target's address space. This work was needed to support ELF with embedded
stabs used by Solaris-2.0.
* Bug fixes (of course!)
There have been loads of fixes for the following things:
mips, rs6000, 29k/udi, m68k, g++, type handling, elf/dwarf, m88k,
i960, stabs, DOS(GO32), procfs, etc...
See the ChangeLog for details.
*** Changes in GDB-4.5:
* New machines supported (host and target)
IBM RS6000 running AIX rs6000-ibm-aix or rs6000
SGI Irix-4.x mips-sgi-irix4 or iris4
* New malloc package
GDB now uses a new memory manager called mmalloc, based on gmalloc.
Mmalloc is capable of handling mutiple heaps of memory. It is also
capable of saving a heap to a file, and then mapping it back in later.
This can be used to greatly speedup the startup of GDB by using a
pre-parsed symbol table which lives in a mmalloc managed heap. For
more details, please read mmalloc/mmalloc.texi.
* info proc
The 'info proc' command (SVR4 only) has been enhanced quite a bit. See
'help info proc' for details.
* MIPS ecoff symbol table format
The code that reads MIPS symbol table format is now supported on all hosts.
Thanks to MIPS for releasing the sym.h and symconst.h files to make this
possible.
* File name changes for MS-DOS
Many files in the config directories have been renamed to make it easier to
support GDB on MS-DOSe systems (which have very restrictive file name
conventions :-( ). MS-DOSe host support (under DJ Delorie's GO32
environment) is close to working but has some remaining problems. Note
that debugging of DOS programs is not supported, due to limitations
in the ``operating system'', but it can be used to host cross-debugging.
* Cross byte order fixes
Many fixes have been made to support cross debugging of Sparc and MIPS
targets from hosts whose byte order differs.
* New -mapped and -readnow options
If memory-mapped files are available on your system through the 'mmap'
system call, you can use the -mapped option on the `file' or
`symbol-file' commands to cause GDB to write the symbols from your
program into a reusable file. If the program you are debugging is
called `/path/fred', the mapped symbol file will be `./fred.syms'.
Future GDB debugging sessions will notice the presence of this file,
and will quickly map in symbol information from it, rather than reading
the symbol table from the executable program. Using the '-mapped'
option in a GDB `file' or `symbol-file' command has the same effect as
starting GDB with the '-mapped' command-line option.
You can cause GDB to read the entire symbol table immediately by using
the '-readnow' option with any of the commands that load symbol table
information (or on the GDB command line). This makes the command
slower, but makes future operations faster.
The -mapped and -readnow options are typically combined in order to
build a `fred.syms' file that contains complete symbol information.
A simple GDB invocation to do nothing but build a `.syms' file for future
use is:
gdb -batch -nx -mapped -readnow programname
The `.syms' file is specific to the host machine on which GDB is run.
It holds an exact image of GDB's internal symbol table. It cannot be
shared across multiple host platforms.
* longjmp() handling
GDB is now capable of stepping and nexting over longjmp(), _longjmp(), and
siglongjmp() without losing control. This feature has not yet been ported to
all systems. It currently works on many 386 platforms, all MIPS-based
platforms (SGI, DECstation, etc), and Sun3/4.
* Solaris 2.0
Preliminary work has been put in to support the new Solaris OS from Sun. At
this time, it can control and debug processes, but it is not capable of
reading symbols.
* Bug fixes
As always, many many bug fixes. The major areas were with g++, and mipsread.
People using the MIPS-based platforms should experience fewer mysterious
crashes and trashed symbol tables.
*** Changes in GDB-4.4:
* New machines supported (host and target)
SCO Unix on i386 IBM PC clones i386-sco-sysv or i386sco
(except core files)
BSD Reno on Vax vax-dec-bsd
Ultrix on Vax vax-dec-ultrix
* New machines supported (target)
AMD 29000 embedded, using EBMON a29k-none-none
* C++ support
GDB continues to improve its handling of C++. `References' work better.
The demangler has also been improved, and now deals with symbols mangled as
per the Annotated C++ Reference Guide.
GDB also now handles `stabs' symbol information embedded in MIPS
`ecoff' symbol tables. Since the ecoff format was not easily
extensible to handle new languages such as C++, this appeared to be a
good way to put C++ debugging info into MIPS binaries. This option
will be supported in the GNU C compiler, version 2, when it is
released.
* New features for SVR4
GDB now handles SVR4 shared libraries, in the same fashion as SunOS
shared libraries. Debugging dynamically linked programs should present
only minor differences from debugging statically linked programs.
The `info proc' command will print out information about any process
on an SVR4 system (including the one you are debugging). At the moment,
it prints the address mappings of the process.
If you bring up GDB on another SVR4 system, please send mail to
bug-gdb@prep.ai.mit.edu to let us know what changes were reqired (if any).
* Better dynamic linking support in SunOS
Reading symbols from shared libraries which contain debugging symbols
now works properly. However, there remain issues such as automatic
skipping of `transfer vector' code during function calls, which
make it harder to debug code in a shared library, than to debug the
same code linked statically.
* New Getopt
GDB is now using the latest `getopt' routines from the FSF. This
version accepts the -- prefix for options with long names. GDB will
continue to accept the old forms (-option and +option) as well.
Various single letter abbreviations for options have been explicity
added to the option table so that they won't get overshadowed in the
future by other options that begin with the same letter.
* Bugs fixed
The `cleanup_undefined_types' bug that many of you noticed has been squashed.
Many assorted bugs have been handled. Many more remain to be handled.
See the various ChangeLog files (primarily in gdb and bfd) for details.
*** Changes in GDB-4.3:
* New machines supported (host and target)
Amiga 3000 running Amix m68k-cbm-svr4 or amix
NCR 3000 386 running SVR4 i386-ncr-svr4 or ncr3000
Motorola Delta 88000 running Sys V m88k-motorola-sysv or delta88
* Almost SCO Unix support
We had hoped to support:
SCO Unix on i386 IBM PC clones i386-sco-sysv or i386sco
(except for core file support), but we discovered very late in the release
that it has problems with process groups that render gdb unusable. Sorry
about that. I encourage people to fix it and post the fixes.
* Preliminary ELF and DWARF support
GDB can read ELF object files on System V Release 4, and can handle
debugging records for C, in DWARF format, in ELF files. This support
is preliminary. If you bring up GDB on another SVR4 system, please
send mail to bug-gdb@prep.ai.mit.edu to let us know what changes were
reqired (if any).
* New Readline
GDB now uses the latest `readline' library. One user-visible change
is that two tabs will list possible command completions, which previously
required typing M-? (meta-question mark, or ESC ?).
* Bugs fixed
The `stepi' bug that many of you noticed has been squashed.
Many bugs in C++ have been handled. Many more remain to be handled.
See the various ChangeLog files (primarily in gdb and bfd) for details.
* State of the MIPS world (in case you wondered):
GDB can understand the symbol tables emitted by the compilers
supplied by most vendors of MIPS-based machines, including DEC. These
symbol tables are in a format that essentially nobody else uses.
Some versions of gcc come with an assembler post-processor called
mips-tfile. This program is required if you want to do source-level
debugging of gcc-compiled programs. I believe FSF does not ship
mips-tfile with gcc version 1, but it will eventually come with gcc
version 2.
Debugging of g++ output remains a problem. g++ version 1.xx does not
really support it at all. (If you're lucky, you should be able to get
line numbers and stack traces to work, but no parameters or local
variables.) With some work it should be possible to improve the
situation somewhat.
When gcc version 2 is released, you will have somewhat better luck.
However, even then you will get confusing results for inheritance and
methods.
We will eventually provide full debugging of g++ output on
DECstations. This will probably involve some kind of stabs-in-ecoff
encapulation, but the details have not been worked out yet.
*** Changes in GDB-4.2:
* Improved configuration
Only one copy of `configure' exists now, and it is not self-modifying.
Porting BFD is simpler.
* Stepping improved
The `step' and `next' commands now only stop at the first instruction
of a source line. This prevents the multiple stops that used to occur
in switch statements, for-loops, etc. `Step' continues to stop if a
function that has debugging information is called within the line.
* Bug fixing
Lots of small bugs fixed. More remain.
* New host supported (not target)
Intel 386 PC clone running Mach i386-none-mach
*** Changes in GDB-4.1:
* Multiple source language support
GDB now has internal scaffolding to handle several source languages.
It determines the type of each source file from its filename extension,
and will switch expression parsing and number formatting to match the
language of the function in the currently selected stack frame.
You can also specifically set the language to be used, with
`set language c' or `set language modula-2'.
* GDB and Modula-2
GDB now has preliminary support for the GNU Modula-2 compiler,
currently under development at the State University of New York at
Buffalo. Development of both GDB and the GNU Modula-2 compiler will
continue through the fall of 1991 and into 1992.
Other Modula-2 compilers are currently not supported, and attempting to
debug programs compiled with them will likely result in an error as the
symbol table is read. Feel free to work on it, though!
There are hooks in GDB for strict type checking and range checking,
in the `Modula-2 philosophy', but they do not currently work.
* set write on/off
GDB can now write to executable and core files (e.g. patch
a variable's value). You must turn this switch on, specify
the file ("exec foo" or "core foo"), *then* modify it, e.g.
by assigning a new value to a variable. Modifications take
effect immediately.
* Automatic SunOS shared library reading
When you run your program, GDB automatically determines where its
shared libraries (if any) have been loaded, and reads their symbols.
The `share' command is no longer needed. This also works when
examining core files.
* set listsize
You can specify the number of lines that the `list' command shows.
The default is 10.
* New machines supported (host and target)
SGI Iris (MIPS) running Irix V3: mips-sgi-irix or iris
Sony NEWS (68K) running NEWSOS 3.x: m68k-sony-sysv or news
Ultracomputer (29K) running Sym1: a29k-nyu-sym1 or ultra3
* New hosts supported (not targets)
IBM RT/PC: romp-ibm-aix or rtpc
* New targets supported (not hosts)
AMD 29000 embedded with COFF a29k-none-coff
AMD 29000 embedded with a.out a29k-none-aout
Ultracomputer remote kernel debug a29k-nyu-kern
* New remote interfaces
AMD 29000 Adapt
AMD 29000 Minimon
*** Changes in GDB-4.0:
* New Facilities
Wide output is wrapped at good places to make the output more readable.
Gdb now supports cross-debugging from a host machine of one type to a
target machine of another type. Communication with the target system
is over serial lines. The ``target'' command handles connecting to the
remote system; the ``load'' command will download a program into the
remote system. Serial stubs for the m68k and i386 are provided. Gdb
also supports debugging of realtime processes running under VxWorks,
using SunRPC Remote Procedure Calls over TCP/IP to talk to a debugger
stub on the target system.
New CPUs supported include the AMD 29000 and Intel 960.
GDB now reads object files and symbol tables via a ``binary file''
library, which allows a single copy of GDB to debug programs of multiple
object file types such as a.out and coff.
There is now a GDB reference card in "doc/refcard.tex". (Make targets
refcard.dvi and refcard.ps are available to format it).
* Control-Variable user interface simplified
All variables that control the operation of the debugger can be set
by the ``set'' command, and displayed by the ``show'' command.
For example, ``set prompt new-gdb=>'' will change your prompt to new-gdb=>.
``Show prompt'' produces the response:
Gdb's prompt is new-gdb=>.
What follows are the NEW set commands. The command ``help set'' will
print a complete list of old and new set commands. ``help set FOO''
will give a longer description of the variable FOO. ``show'' will show
all of the variable descriptions and their current settings.
confirm on/off: Enables warning questions for operations that are
hard to recover from, e.g. rerunning the program while
it is already running. Default is ON.
editing on/off: Enables EMACS style command line editing
of input. Previous lines can be recalled with
control-P, the current line can be edited with control-B,
you can search for commands with control-R, etc.
Default is ON.
history filename NAME: NAME is where the gdb command history
will be stored. The default is .gdb_history,
or the value of the environment variable
GDBHISTFILE.
history size N: The size, in commands, of the command history. The
default is 256, or the value of the environment variable
HISTSIZE.
history save on/off: If this value is set to ON, the history file will
be saved after exiting gdb. If set to OFF, the
file will not be saved. The default is OFF.
history expansion on/off: If this value is set to ON, then csh-like
history expansion will be performed on
command line input. The default is OFF.
radix N: Sets the default radix for input and output. It can be set
to 8, 10, or 16. Note that the argument to "radix" is interpreted
in the current radix, so "set radix 10" is always a no-op.
height N: This integer value is the number of lines on a page. Default
is 24, the current `stty rows'' setting, or the ``li#''
setting from the termcap entry matching the environment
variable TERM.
width N: This integer value is the number of characters on a line.
Default is 80, the current `stty cols'' setting, or the ``co#''
setting from the termcap entry matching the environment
variable TERM.
Note: ``set screensize'' is obsolete. Use ``set height'' and
``set width'' instead.
print address on/off: Print memory addresses in various command displays,
such as stack traces and structure values. Gdb looks
more ``symbolic'' if you turn this off; it looks more
``machine level'' with it on. Default is ON.
print array on/off: Prettyprint arrays. New convenient format! Default
is OFF.
print demangle on/off: Print C++ symbols in "source" form if on,
"raw" form if off.
print asm-demangle on/off: Same, for assembler level printouts
like instructions.
print vtbl on/off: Prettyprint C++ virtual function tables. Default is OFF.
* Support for Epoch Environment.
The epoch environment is a version of Emacs v18 with windowing. One
new command, ``inspect'', is identical to ``print'', except that if you
are running in the epoch environment, the value is printed in its own
window.
* Support for Shared Libraries
GDB can now debug programs and core files that use SunOS shared libraries.
Symbols from a shared library cannot be referenced
before the shared library has been linked with the program (this
happens after you type ``run'' and before the function main() is entered).
At any time after this linking (including when examining core files
from dynamically linked programs), gdb reads the symbols from each
shared library when you type the ``sharedlibrary'' command.
It can be abbreviated ``share''.
sharedlibrary REGEXP: Load shared object library symbols for files
matching a unix regular expression. No argument
indicates to load symbols for all shared libraries.
info sharedlibrary: Status of loaded shared libraries.
* Watchpoints
A watchpoint stops execution of a program whenever the value of an
expression changes. Checking for this slows down execution
tremendously whenever you are in the scope of the expression, but is
quite useful for catching tough ``bit-spreader'' or pointer misuse
problems. Some machines such as the 386 have hardware for doing this
more quickly, and future versions of gdb will use this hardware.
watch EXP: Set a watchpoint (breakpoint) for an expression.
info watchpoints: Information about your watchpoints.
delete N: Deletes watchpoint number N (same as breakpoints).
disable N: Temporarily turns off watchpoint number N (same as breakpoints).
enable N: Re-enables watchpoint number N (same as breakpoints).
* C++ multiple inheritance
When used with a GCC version 2 compiler, GDB supports multiple inheritance
for C++ programs.
* C++ exception handling
Gdb now supports limited C++ exception handling. Besides the existing
ability to breakpoint on an exception handler, gdb can breakpoint on
the raising of an exception (before the stack is peeled back to the
handler's context).
catch FOO: If there is a FOO exception handler in the dynamic scope,
set a breakpoint to catch exceptions which may be raised there.
Multiple exceptions (``catch foo bar baz'') may be caught.
info catch: Lists all exceptions which may be caught in the
current stack frame.
* Minor command changes
The command ``call func (arg, arg, ...)'' now acts like the print
command, except it does not print or save a value if the function's result
is void. This is similar to dbx usage.
The ``up'' and ``down'' commands now always print the frame they end up
at; ``up-silently'' and `down-silently'' can be used in scripts to change
frames without printing.
* New directory command
'dir' now adds directories to the FRONT of the source search path.
The path starts off empty. Source files that contain debug information
about the directory in which they were compiled can be found even
with an empty path; Sun CC and GCC include this information. If GDB can't
find your source file in the current directory, type "dir .".
* Configuring GDB for compilation
For normal use, type ``./configure host''. See README or gdb.texinfo
for more details.
GDB now handles cross debugging. If you are remotely debugging between
two different machines, type ``./configure host -target=targ''.
Host is the machine where GDB will run; targ is the machine
where the program that you are debugging will run.