Commit Graph

39134 Commits

Author SHA1 Message Date
Eli Zaretskii adf3dde510 Avoid compiler warning in MinGW build
gdb:

2017-05-13  Eli Zaretskii  <eliz@gnu.org>

	* tui/tui.c (tui_enable): Cast "unknown" to 'char *' to avoid a
	C++ compiler warning.
2017-05-13 11:10:00 +03:00
Tom Tromey 6830f270e7 Avoid exponential behavior in rust_evaluate_subexp
The STRUCTOP_STRUCT case in rust_evaluate_subexp would evaluate its
LHS, and then, if it did not need Rust-specific treatment, it would
back up and re-evaluate the entire STRUCTOP_STRUCT part of the
expression using evaluate_subexp_standard.  This yields exponential
behavior and causes some expressions to evaluate extremely slowly.

The fix is to simply do the needed work inline.

This is PR rust/21483.

ChangeLog
2017-05-12  Tom Tromey  <tom@tromey.com>

	PR rust/21483:
	* rust-lang.c (rust_evaluate_subexp) <STRUCTOP_STRUCT>: Don't
	recurse, just call value_struct_elt directly.
2017-05-12 08:52:55 -06:00
Tom Tromey 68f2f2e308 Fix rust_dump_subexp_body
rust_dump_subexp_body was not correct in a couple of cases.  While
debugging the bug I was really interested in, this caused a crash.
This patch fixes the problems.  No test case because, IIRC there
generally aren't tests for expression dumping.

ChangeLog
2017-05-12  Tom Tromey  <tom@tromey.com>

	* rust-lang.c (rust_dump_subexp_body) <STRUCTOP_ANONYMOUS,
	OP_RUST_ARRAY>: Fix.
2017-05-12 08:52:55 -06:00
Tom Tromey 256afbc259 Replace "return" with "break"
This replaces a "return" with a "break" in rust_print_subexp, for
consistency.

ChangeLog
2017-05-12  Tom Tromey  <tom@tromey.com>

	* rust-lang.c (rust_print_subexp): Replace "return" with "break".
2017-05-12 08:52:55 -06:00
Yao Qi 94bb8dfe28 Use std::forward_list for current_regcache
gdb:

2017-05-09  Yao Qi  <yao.qi@linaro.org>

	* regcache.c: Include <forward_list>.
	(struct regcache_list): Remove.
	(current_regcache): Update.
	(get_thread_arch_aspace_regcache): Update for std::forward_list.
	(regcache_thread_ptid_changed): Likewise.
	(registers_changed_ptid): Likewise.
	(current_regcache_size): Likewise.
2017-05-09 12:36:53 +01:00
Yao Qi 8248946cc5 Add current_regcache unit test
This patch adds a unit test to current_regcache, to make sure it is
correctly updated by get_thread_arch_aspace_regcache and
registers_changed_ptid.

gdb:

2017-05-09  Yao Qi  <yao.qi@linaro.org>

	* regcache.c [GDB_SELF_TEST]: Include selftest.h.
	(current_regcache_size): New function.
	(current_regcache_test): New function.
	(_initialize_regcache) [GDB_SELF_TEST]: Register the unit test.
2017-05-09 12:36:53 +01:00
Alan Hayward 313c596122 Remove some uses of MAX_REGISTER_SIZE from mips-tdep.c
gdb/
	* mips-tdep.c (mips_o32_return_value): Remove unused buffer.
	(print_gp_register_row): Use get_frame_register_value.
2017-05-08 09:40:07 +01:00
Alan Hayward 27bfc1d1c2 Remove some uses of MAX_REGISTER_SIZE from mips-linux-tdep.c
gdb/
	* mips-linux-tdep.c (mips_supply_gregset): Use raw_supply_zeroed.
	(mips_supply_fpregset): Likewise.
	(mips64_supply_gregset): Likewise.
2017-05-08 09:37:26 +01:00
Alan Hayward 146e6c5cc7 Remove some uses of MAX_REGISTER_SIZE uses from mn10300-linux-tdep.c
gdb/
	* mn10300-linux-tdep.c (am33_supply_gregset_method): Use
	regcache->raw_supply_zeroed.
2017-05-08 09:35:45 +01:00
Sergio Durigan Junior e50f25ecdb Rearrange gdb/configure.nat to make it simpler and less redundant
The previous commit introduced gdb/configure.nat, but it was just a
copy-and-past (with the necessary adjustments) from the files under
gdb/config/.  We can do better than that.

Instead of using one big 'case' statement that matches the
${gdb_host_cpu} and then match each ${gdb_host}, it is possible to
remove a lof of redundancy by matching the most common ${gdb_host}'s
first, setting the common variables for each, and then proceed to
matching specific ${gdb_host}'s and ${gdb_host_cpu}'s.  In other
words, reverse the order of the 'case's and take advantage of the fact
that a lot of parameters are the same for each host.

This commit was tested on x86_64 without regressions.

gdb/ChangeLog:
2017-05-06  Sergio Durigan Junior  <sergiodj@redhat.com>

 	* configure.nat: Rearrange 'case' statements to match
	host before cpu.
2017-05-06 10:10:55 -04:00
Sergio Durigan Junior 21ea5acdd1 Introduce "gdb/configure.nat" (and delete "gdb/config/*/*.mh" files)
Due to my ongoing work to make it possible for gdbserver to start the
inferior using the shell, I had to share the fork_inferior function
under the "nat/" directory.  In order to do that, I created a new file
and put the function there; however, this meant that I now had to
update some of the *.mh files (under "gdb/config") and add the new
file as a dependency to be built natively.  Bleh...

After talking a bit to Pedro about this, the idea came up to write a
new "gdb/configure.nat" file, a la "gdb/configure.tgt", which would
concentrate all of the native settings for each host/system.  I
decided to tackle this issue.

The patch is simple.  All of the previous Makefile variables that were
being declared inside the *.mh files are now inside "gdb/Makefile.in",
and "gdb/configure" is responsible for AC_SUBST'ing them.  The
definitions of these variables were put inside "gdb/configure.nat", so
now they're shell variables.  For excerpts of Makefile code, one must
create a file under "gdb/config/${gdb_cpu_host}" and reference it on
the "nat_extra_makefile_frag" variable.

It should now be easier to update the native dependencies of hosts in
this single file.

This has been tested on x86_64 without regressions.

gdb/ChangeLog:
2017-05-06  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile.in: Remove "@host_makefile_frag@".  Add variables
	NAT_FILE, NATDEPFILES, NAT_CDEPS, LOADLIBES, MH_CFLAGS, XM_CLIBS,
	NAT_GENERATED_FILES, HAVE_NATIVE_GCORE_HOST.  Add
	"@nat_extra_makefile_frag@".
	(Makefile): Remove dependency on "@frags@".
	($(GNULIB_BUILDDIR)/Makefile): Likewise.
	(data-directory/Makefile): Likewise.
	* config/aarch64/linux.mh: Deleted; moved contents to
	"gdb/configure.nat".
	* config/alpha/alpha-linux.mh: Likewise.
	* config/alpha/nbsd.mh: Likewise.
	* config/arm/linux.mh: Likewise.
	* config/arm/nbsdelf.mh: Likewise.
	* config/i386/cygwin.mh: Likewise.
	* config/i386/cygwin64.mh: Likewise.
	* config/i386/darwin.mh: Likewise.
	* config/i386/fbsd.mh: Likewise.
	* config/i386/fbsd64.mh: Likewise.
	* config/i386/go32.mh: Likewise.
	* config/i386/i386gnu.mh: Likewise.
	* config/i386/i386sol2.mh: Likewise.
	* config/i386/linux.mh: Likewise.
	* config/i386/linux64.mh: Likewise.
	* config/i386/mingw.mh: Likewise.
	* config/i386/mingw64.mh: Likewise.
	* config/i386/nbsd64.mh: Likewise.
	* config/i386/nbsdelf.mh: Likewise.
	* config/i386/nto.mh: Likewise.
	* config/i386/obsd.mh: Likewise.
	* config/i386/obsd64.mh: Likewise.
	* config/i386/sol2-64.mh: Likewise.
	* config/ia64/linux.mh: Likewise.
	* config/m32r/linux.mh: Likewise.
	* config/m68k/linux.mh: Likewise.
	* config/m68k/nbsdelf.mh: Likewise.
	* config/m68k/obsd.mh: Likewise.
	* config/m88k/obsd.mh: Likewise.
	* config/mips/fbsd.mh: Likewise.
	* config/mips/linux.mh: Likewise.
	* config/mips/nbsd.mh: Likewise.
	* config/mips/obsd64.mh: Likewise.
	* config/pa/linux.mh: Likewise.
	* config/pa/nbsd.mh: Likewise.
	* config/pa/obsd.mh: Likewise.
	* config/powerpc/aix.mh: Likewise.
	* config/powerpc/fbsd.mh: Likewise.
	* config/powerpc/linux.mh: Likewise.
	* config/powerpc/nbsd.mh: Likewise.
	* config/powerpc/obsd.mh: Likewise.
	* config/powerpc/ppc64-linux.mh: Likewise.
	* config/powerpc/spu-linux.mh: Likewise.
	* config/s390/linux.mh: Likewise.
	* config/sh/nbsd.mh: Likewise.
	* config/sparc/fbsd.mh: Likewise.
	* config/sparc/linux.mh: Likewise.
	* config/sparc/linux64.mh: Likewise.
	* config/sparc/nbsd64.mh: Likewise.
	* config/sparc/nbsdelf.mh: Likewise.
	* config/sparc/obsd64.mh: Likewise.
	* config/sparc/sol2.mh: Likewise.
	* config/tilegx/linux.mh: Likewise.
	* config/vax/nbsdelf.mh: Likewise.
	* config/vax/obsd.mh: Likewise.
	* config/xtensa/linux.mh: Likewise.
	* config/i386/i386gnu.mn: New file, with excerpts from
	"config/i386/i386gnu.mh".
	* configure: Regenerate.
	* configure.ac: Rewrite code to use "gdb/configure.nat" instead of
	*.mh files under "gdb/config".
	* configure.nat: New file, with contents from the
	"gdb/config/*/*.mh" files.

gdb/doc/ChangeLog:
2017-05-06  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile: Remove "@host_makefile_frag@".
2017-05-06 10:09:35 -04:00
Tim Wiederhake 7ed1acafa0 btrace: Fix memory leak in btrace_clear. 2017-05-05 08:20:50 +02:00
Pedro Alves e13cb306f0 gdb: Disable -Werror for -Wmaybe-uninitialized
Newer GCCs are triggering false-positive -Wmaybe-uninitialized
warnings around code that uses gdb::optional:
  https://sourceware.org/ml/gdb-patches/2017-05/msg00118.html

Using std::optional wouldn't help, it triggers the same warnings:
  https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80635

Initializing the variables to quiet the warning would defeat the
purpose of gdb::optional.  Making the optional ctor memset its storage
would be a pessimization.  Wrapping gdb::optional's internals with
"#pragma GCC diagnostic push/ignored/pop" doesn't work, we'd have to
wrap uses of gdb::optional instead, which I think would get unwieldy
and ugly as we start using gdb::optional more and more.

The -Wmaybe-uninitialized warning is documented as producing false
positives (unlike -Wuninialized), so until we find a better
workaround, disable -Werror for this warning.  You'll still see the
warning when building gdb, but it won't cause a build failure.

Tested by building with gcc 4.8.5, 5.3.1, and gcc trunk (20170428).

gdb/ChangeLog:
2017-05-05  Pedro Alves  <palves@redhat.com>

	* warning.m4 (build_warnings): Add -Wno-error=maybe-uninitialized.
	* configure: Regenerate.

gdb/gdbserver/ChangeLog:
2017-05-05  Pedro Alves  <palves@redhat.com>

	* configure: Regenerate.
2017-05-05 01:03:28 +01:00
Pedro Alves d512d31c39 Fix gdb.python/py-record-btrace-threads.exp with Python 3
Fix several instances of:

 ...
 python print not f1calls
   File "<string>", line 1
     print not f1calls
		     ^
 SyntaxError: Missing parentheses in call to 'print'
 Error while executing Python code.
 (gdb) FAIL: gdb.python/py-record-btrace-threads.exp: thread=1: checking thread 1: python print not f1calls
 ...

gdb/testsuite/ChangeLog:
2017-05-04  Pedro Alves  <palves@redhat.com>

	* gdb.python/py-record-btrace-threads.exp (check_insn_for_thread):
	Add parens to print call for Python 3.
2017-05-04 16:02:36 +01:00
Pedro Alves 5ed8105e02 RAII-fy make_cleanup_restore_current_thread & friends
After all the make_cleanup_restore_current_thread fixing, I thought
I'd convert that and its relatives (which are all cleanups) to RAII
classes.

scoped_restore_current_pspace_and_thread was put in a separate file to
avoid a circular dependency.

Tested on x86-64 Fedora 23, native and gdbserver.

gdb/ChangeLog:
2017-05-04  Pedro Alves  <palves@redhat.com>

	* Makefile.in (SFILES): Add progspace-and-thread.c.
	(HFILES_NO_SRCDIR): Add progspace-and-thread.h.
	(COMMON_OBS): Add progspace-and-thread.o.
	* breakpoint.c: Include "progspace-and-thread.h".
	(update_inserted_breakpoint_locations)
	(insert_breakpoint_locations, create_longjmp_master_breakpoint):
	Use scoped_restore_current_pspace_and_thread.
	(create_std_terminate_master_breakpoint): Use
	scoped_restore_current_program_space.
	(remove_breakpoint): Use scoped_restore_current_pspace_and_thread.
	(print_breakpoint_location): Use
	scoped_restore_current_program_space.
	(bp_loc_is_permanent): Use
	scoped_restore_current_pspace_and_thread.
	(resolve_sal_pc): Use scoped_restore_current_pspace_and_thread.
	(download_tracepoint_locations): Use
	scoped_restore_current_pspace_and_thread.
	(breakpoint_re_set): Use scoped_restore_current_pspace_and_thread.
	* exec.c (exec_close_1): Use scoped_restore_current_program_space.
	(enum step_over_calls_kind): Moved from inferior.h.
	(class scoped_restore_current_thread): New class.
	* gdbthread.h (make_cleanup_restore_current_thread): Delete
	declaration.
	(scoped_restore_current_thread): New class.
	* infcmd.c: Include "common/gdb_optional.h".
	(continue_1, proceed_after_attach): Use
	scoped_restore_current_thread.
	(notice_new_inferior): Use scoped_restore_current_thread.
	* inferior.c: Include "progspace-and-thread.h".
	(restore_inferior, save_current_inferior): Delete.
	(add_inferior_command, clone_inferior_command): Use
	scoped_restore_current_pspace_and_thread.
	* inferior.h (scoped_restore_current_inferior): New class.
	* infrun.c: Include "progspace-and-thread.h" and
	"common/gdb_optional.h".
	(follow_fork_inferior): Use
	scoped_restore_current_pspace_and_thread.
	(scoped_restore_exited_inferior): New class.
	(handle_vfork_child_exec_or_exit): Use
	scoped_restore_exited_inferior,
	scoped_restore_current_pspace_and_thread,
	scoped_restore_current_thread and scoped_restore.
	(fetch_inferior_event): Use scoped_restore_current_thread.
	* linespec.c (decode_line_full, decode_line_1): Use
	scoped_restore_current_program_space.
	* mi/mi-main.c: Include "progspace-and-thread.h".
	(exec_continue): Use scoped_restore_current_thread.
	(mi_cmd_exec_run): Use scoped_restore_current_pspace_and_thread.
	(mi_cmd_trace_frame_collected): Use scoped_restore_current_thread.
	* proc-service.c (ps_pglobal_lookup): Use
	scoped_restore_current_program_space.
	* progspace-and-thread.c: New file.
	* progspace-and-thread.h: New file.
	* progspace.c (release_program_space, clone_program_space): Use
	scoped_restore_current_program_space.
	(restore_program_space, save_current_program_space)
	(save_current_space_and_thread): Delete.
	(switch_to_program_space_and_thread): Moved to
	progspace-and-thread.c.
	* progspace.h (save_current_program_space)
	(save_current_space_and_thread): Delete declarations.
	(scoped_restore_current_program_space): New class.
	* remote.c (remote_btrace_maybe_reopen): Use
	scoped_restore_current_thread.
	* symtab.c: Include "progspace-and-thread.h".
	(skip_prologue_sal): Use scoped_restore_current_pspace_and_thread.
	* thread.c (print_thread_info_1): Use
	scoped_restore_current_thread.
	(struct current_thread_cleanup): Delete.
	(do_restore_current_thread_cleanup)
	(restore_current_thread_cleanup_dtor): Rename/convert both to ...
	(scoped_restore_current_thread::~scoped_restore_current_thread):
	... this new dtor.
	(make_cleanup_restore_current_thread): Rename/convert to ...
	(scoped_restore_current_thread::scoped_restore_current_thread):
	... this new ctor.
	(thread_apply_all_command): Use scoped_restore_current_thread.
	(thread_apply_command): Use scoped_restore_current_thread.
	* tracepoint.c (tdump_command): Use scoped_restore_current_thread.
	* varobj.c (value_of_root_1): Use scoped_restore_current_thread.
2017-05-04 15:18:44 +01:00
Pedro Alves f6223dbb50 make_cleanup_restore_current_thread: Look up thread earlier
The unconditional is_stopped call already asserts that the thread exists.

gdb/ChangeLog:
2017-05-04  Pedro Alves  <palves@redhat.com>

	* thread.c (make_cleanup_restore_current_thread): Move
	find_thread_ptid call before the is_stopped call.  Assert that the
	thread is found.  Replace is_stopped call by checking the thread's
	state directly.  Remove unnecessary NULL-thread check.
2017-05-04 15:17:38 +01:00
Pedro Alves 3c3ae77e68 Fix get_core_register_section leak, introduce thread_section_name
This plugs a leak introduced in the previous change to
get_core_register_section, which removed an xfree call that is
actually necessary because the 'section_name' local is static.

From [1] it looks like the reason the variable was made static to
begin with, was just "laziness" to avoid having to think about freeing
it on every function return path:

 https://sourceware.org/ml/gdb-patches/2005-03/msg00237.html

The easiest to fix that nowadays is to use a std::string.

I don't see a need to xstrdup the section name in the single-threaded
case though, and also there's more than one place that computes a
multi-threaded section name in the same way.  So put the section name
computation in a wrapper class with state.

gdb/ChangeLog:
2017-05-04  Pedro Alves  <palves@redhat.com>

	* corelow.c (thread_section_name): New class.
	(get_core_register_section, get_core_siginfo): Use it.
2017-05-04 15:14:37 +01:00
Andreas Arnez 45eba0ab7d Remove some superfluous code in corelow.c
In corelow.c I stumbled upon an extra semicolon and an xfree of a NULL
pointer.  Remove them.

gdb/ChangeLog:

	* corelow.c (sniff_core_bfd): Remove extra semicolon.
	(get_core_register_section): Remove xfree of NULL pointer.
2017-05-04 11:06:10 +02:00
Keith Seitz 90cef2edd2 Make sure malloc is linked into gdb.cp/oranking.cc.
On some platforms, e.g., arm-eabi-none, we need to make certain that
malloc is linked into the program because the test suite uses function
calls requiring malloc:

(gdb) p foo101("abc")
evaluation of this expression requires the program to have a function "malloc".

gdb/testsuite/ChangeLog

	* gdb.cp/oranking.cc (dummy): New function to grab malloc.
	(main): Call it.
2017-05-03 12:41:09 -07:00
Alan Hayward f81fdd350e Remove MAX_REGISTER_SIZE from frv-linux-tdep.c
gdb/
	* frv-linux-tdep.c (frv_linux_supply_gregset): Use raw_supply_zeroed.
	* regcache.c (regcache::raw_supply_zeroed): New function.
	* regcache.h (regcache::raw_supply_zeroed): New declaration.
2017-05-03 14:51:40 +01:00
Simon Marchi 35837774a7 gdbarch.sh: Remove commented out TARGET_CHAR_BIT definition
As Pedro commented on the patch "Change field separator in gdbarch.sh",
this commented out definition is probably not useful and should be
removed.  It has been commented out for basically forever, and it
probably serves the same intent as addressable_memory_unit_size.

gdb/ChangeLog:

	* gdbarch.sh: Remove commented out definition of
	TARGET_CHAR_BIT.
	* gdbarch.h: Re-generate.
2017-05-03 09:21:27 -04:00
Sergio Durigan Junior c94fee56f5 Regenerate gdb/{,gdbserver/}configure (for commit be628ab814)
On commit be628ab814, both
common/common.m4 was modified in order to check for the presence of
'termios.h', 'termio.h' and 'sgtty.h'.  However, I forgot to
regenerate both gdb/configure and gdb/gdbserver/configure.  This
commit does that.

gdb/ChangeLog:
2017-05-03  Sergio Durigan Junior  <sergiodj@redhat.com>

	* configure: Regenerate.

gdb/gdbserver/ChangeLog:
2017-05-03  Sergio Durigan Junior  <sergiodj@redhat.com>

	* configure: Regenerate.
2017-05-03 09:17:12 -04:00
Simon Marchi d17f7b365c solib-target: Remove local variables
Now that we use std::vector, these local variables are not very useful.
They're not much shorter than the expressions they stand for.

gdb/ChangeLog:

	* solib-target.c (solib_target_relocate_section_addresses):
	Remove num_section_bases, num_bases, segment_bases variables.
2017-05-02 14:25:43 -04:00
Simon Marchi b560ebd660 Remove definition of VEC (CORE_ADDR)
gdb/ChangeLog:

	* common/gdb_vecs.h (DEF_VEC_I (CORE_ADDR)): Remove.
2017-05-02 13:30:09 -04:00
Simon Marchi f2f46dfcda Use std::vector in lm_info_target
Replace the two VEC fields with std::vector.

gdb/ChangeLog:

	* solib-target.c: Include <vector>
	(struct lm_info_target) <~lm_info_target>: Remove.
	<segment_bases, section_bases>: Change type to
	std::vector<CORE_ADDR>.
	(library_list_start_segment, library_list_start_section,
	library_list_end_library,
	solib_target_relocate_section_addresses): Adjust.
2017-05-02 13:30:08 -04:00
Simon Marchi a0ff9e1ad2 Change return type of gdbarch_software_single_step to vector<CORE_ADDR>
This is a relatively straightforward patch that changes
gdbarch_software_single_step so it returns an std::vector<CORE_ADDR>
instead of a VEC (CORE_ADDR).

gdb/ChangeLog:

	* gdbarch.sh (software_single_step): Change return type to
	std::vector<CORE_ADDR>.
	* gdbarch.c, gdbarch.h: Re-generate.
	* arch/arm-get-next-pcs.c (thumb_deal_with_atomic_sequence_raw):
	Adjust.
	(arm_deal_with_atomic_sequence_raw): Adjust.
	(thumb_get_next_pcs_raw): Adjust.
	(arm_get_next_pcs_raw): Adjust.
	(arm_get_next_pcs): Adjust.
	* arch/arm-get-next-pcs.h (arm_get_next_pcs): Adjust.
	* aarch64-tdep.c (aarch64_software_single_step): Adjust.
	* alpha-tdep.c (alpha_deal_with_atomic_sequence): Adjust.
	(alpha_software_single_step): Adjust.
	* alpha-tdep.h (alpha_software_single_step): Adjust.
	* arm-linux-tdep.c (arm_linux_software_single_step): Adjust.
	* arm-tdep.c (arm_software_single_step): Adjust.
	(arm_breakpoint_kind_from_current_state): Adjust.
	* arm-tdep.h (arm_software_single_step): Adjust.
	* breakpoint.c (insert_single_step_breakpoint): Adjust.
	* cris-tdep.c (cris_software_single_step): Adjust.
	* mips-tdep.c (mips_deal_with_atomic_sequence): Adjust.
	(micromips_deal_with_atomic_sequence): Adjust.
	(deal_with_atomic_sequence): Adjust.
	(mips_software_single_step): Adjust.
	* mips-tdep.h (mips_software_single_step): Adjust.
	* moxie-tdep.c (moxie_software_single_step): Adjust.
	* nios2-tdep.c (nios2_software_single_step): Adjust.
	* ppc-tdep.h (ppc_deal_with_atomic_sequence): Adjust.
	* rs6000-aix-tdep.c (rs6000_software_single_step): Adjust.
	* rs6000-tdep.c (ppc_deal_with_atomic_sequence): Adjust.
	* s390-linux-tdep.c (s390_software_single_step): Adjust.
	* sparc-tdep.c (sparc_software_single_step): Adjust.
	* spu-tdep.c (spu_software_single_step): Adjust.
	* tic6x-tdep.c (tic6x_software_single_step): Adjust.

gdb/gdbserver/ChangeLog:

	* linux-arm-low.c (arm_gdbserver_get_next_pcs): Adjust to
	software_single_step change of return type to
	std::vector<CORE_ADDR>.
	* linux-low.c (install_software_single_step_breakpoints):
	Likewise.
	* linux-low.h (install_software_single_step_breakpoints):
	Likewise.
2017-05-02 13:30:07 -04:00
Simon Marchi ea480a306d Change field separator in gdbarch.sh
The fields in the description of the gdbarch interface are separated
using colons.  That becomes a problem if we want to use things like
std::vector in it. This patch changes the field separator to use
semicolons instead.

I think there's very little chance we'll ever want to use a semicolon in
one of the fields, but if you think another character would be more
appropriate, let me know.

gdb/ChangeLog:

	* gdbarch.sh: Use semi-colon as field separator instead of colon.
	* gdbarch.h: Re-generate.
2017-05-02 13:30:07 -04:00
Tim Wiederhake d050f7d7f4 Python: Introduce gdb.Instruction class
This adds a generic instruction class to Python and has gdb.RecordInstruction
inherit from it.
2017-05-02 11:35:54 +02:00
Tim Wiederhake 14f819c8c5 Python: Move and rename gdb.BtraceFunction
Remove gdb.BtraceFunctionCall and replace by gdb.FunctionSegment.  Additionally,
rename prev_segment and next_segment to prev and next.
2017-05-02 11:35:54 +02:00
Tim Wiederhake 0ed5da759e Python: Move and rename gdb.BtraceInstruction
Remove gdb.BtraceInstruction and replace by gdb.RecordInstruction.
2017-05-02 11:35:54 +02:00
Tim Wiederhake 913aeadd9d Python: Introduce gdb.RecordGap class
As discussed here: https://sourceware.org/ml/gdb-patches/2017-04/msg00157.html

A gap is not an instruction and it should not pretend to be one.
gdb.Record.instruction_history is now a list of gdb.RecordInstruction and
gdb.RecordGap objects.  This allows the user to deal with Gaps in the record
in a more sane way.
2017-05-02 11:35:54 +02:00
Tim Wiederhake a3be24ad59 Python: Remove ptid from gdb.Record interface
As discussed here: https://sourceware.org/ml/gdb-patches/2017-04/msg00166.html
2017-05-02 11:35:54 +02:00
Tim Wiederhake ae20e79ae8 Python: Use correct ptid in btrace recording
The user would always get the instruction_history and function_call_history
objects of the current thread, not the thread for which the gdb.Record object
was created.

The attached testcase fails without this patch and passes with the patch.
2017-05-02 11:35:54 +02:00
Tim Wiederhake 8d0050ea19 Python: Fix indentation in py-record-btrace.c 2017-05-02 11:35:54 +02:00
Joel Brobecker 3f380b5027 gdb/MAINTAINERS: Move Daniel J and Mark to the Past Maintainers section.
gdb/ChangeLog:

        * MAINTAINERS: Move Daniel Jacobowitz and Mark Kettenis to
        the past maintainers section.
2017-05-01 10:02:51 -07:00
Sergio Durigan Junior 45ce1b47e4 Make environ.exp run on all platforms (and create info-program.exp)
This has been on my TODO list for a while.  There's a really old bug
about this (PR testsuite/8595), and there was no reason for
environ.exp to be specific for hppa* targets.  So this patch removes
this constraint, modernizes the testcase, and cleans up some things.
Most of the tests remained, and some were rewritten (especially the
one that checks if "show environment" works, which is something kind
of hard to do).

As a bonus, I'm adding a separated info-program.exp file containing
all the tests related to "info program" that were present on
environ.exp.

Tested locally, everything still passes.

gdb/testsuite/ChangeLog:
2017-04-28  Sergio Durigan Junior  <sergiodj@redhat.com>

	PR testsuite/8595
	* gdb.base/environ.exp: Make test available in all architectures.
	Move bits related to "info program" testing to
	gdb.base/info-program.exp.  Rewrite tests to use the two new
	procedures mentione below.
	(test_set_show_env_var) New procedure.
	(test_set_show_env_var_equal): Likewise.
	* gdb.base/info-program.exp: New file.
2017-04-28 20:29:20 -04:00
Yao Qi 0749542484 Remove cleanup in get_return_value
With regcache ctor, we can use it to create local object in
get_return_value (), so that the cleanup can be removed.

gdb:

2017-04-28  Yao Qi  <yao.qi@linaro.org>

	* infcmd.c (get_return_value): Use regcache ctor, and remove
	cleanup.
2017-04-28 22:48:42 +01:00
Yao Qi deb1fa3eda Use tag dispatch regcache ctor in regcache_dup
This patch adds a tag dispatch ctor to create read-only regcache from
a write-through regcache, also this patch deletes copy ctor and
assignment operator.

gdb:

2017-04-28  Yao Qi  <yao.qi@linaro.org>
	    Pedro Alves  <palves@redhat.com>

	* regcache.c (regcache::regcache): New tag dispatch ctor.
	(do_cooked_read): Moved above.
	(regcache_dup): Use the tag dispatch ctor..
	* regcache.h (regcache): Declare ctor, delete copy ctor and
	assignment operator, remove friend regcache_dup.
2017-04-28 22:48:42 +01:00
Yao Qi b421c83cb8 Simplify regcache_dup
regcache_dup, in fact, is to create a readonly regcache from a
non-readonly regcache.  This patch adds an assert that src is not
readonly.

gdb:

2017-04-28  Yao Qi  <yao.qi@linaro.org>

	* regcache.c (regcache_dup): Assert !src->m_readonly_p and
	call method save instead of regcache_cpy.
	* regcache.h (struct regcache): Make regcache_dup a friend.
2017-04-28 22:48:42 +01:00
Yao Qi ef79d9a3c6 Class-fy regcache
This patch moves regcache declaration to regcache.h, and converts
regcache apis to member functions, for example, regcache_invalidate
is changed to regcache::invalidate.

This patch also add "m_" prefix to these private fields.

gdb:

2017-04-28  Yao Qi  <yao.qi@linaro.org>

	* regcache.c (struct regcache): Move to regcache.h
	(regcache::arch): New method.
	(regcache_get_ptid): Update.
	(get_regcache_arch): Call arch method.
	(get_regcache_aspace): Call method aspace.
	(register_buffer): Change it to method.
	(regcache_save): Change it to regcache::save.
	(regcache_restore): Likewise.
	(regcache_cpy_no_passthrough): Remove the declaration.
	(regcache_cpy): Call methods restore and cpy_no_passthrough.
	(regcache_cpy_no_passthrough): Change it to method
	cpy_no_passthrough.
	(regcache_register_status): Change it to method
	get_register_status.
	(regcache_invalidate): Change it to method invalidate.
	(regcache_thread_ptid_changed): Use methods ptid and set_ptid.
	(regcache_raw_update): Change it to method raw_update.
	(regcache_raw_read): Likewise.
	(regcache_raw_read_signed): Likewise.
	(regcache_raw_read_unsigned): Likewise.
	(regcache_raw_write_signed): Likewise.
	(regcache_raw_write_unsigned): Likewise.
	(regcache_cooked_read): Likewise.
	(regcache_cooked_read_value): Likewise.
	(regcache_cooked_read_signed): Likewise.
	(regcache_cooked_read_unsigned): Likewise.
	(regcache_cooked_write_signed): Likewise.
	(regcache_cooked_write_unsigned): Likewise.
	(regcache_raw_set_cached_value): Likewise.
	(regcache_raw_write): Likewise.
	(regcache_cooked_write): Likewise.
	(regcache_xfer_part): Likewise.
	(regcache_raw_read_part): Likewise.
	(regcache_raw_write_part): Likewise.
	(regcache_cooked_read_part): Likewise.
	(regcache_cooked_write_part): Likewise.
	(regcache_raw_supply): Likewise.
	(regcache_raw_collect): Likewise.
	(regcache_transfer_regset): Likewise.
	(regcache_supply_regset): Likewise.
	(regcache_collect_regset): Likewise.
	(regcache_debug_print_register): Likewise.
	(enum regcache_dump_what): Move it to regcache.h.
	(regcache_dump): Change it to method dump.
	* regcache.h (enum regcache_dump_what): New.
	(class regcache): New.
	* target.c (target_fetch_registers): Call method
	debug_print_register.
	(target_store_registers): Likewise.
2017-04-28 22:48:42 +01:00
Simon Marchi f8fdb78eaf Class-ify lm_info_windows
This patch makes lm_info_windows a "real" class.  It initializes the field
and replaces XCNEW/xfree with new/delete.

gdb/ChangeLog:

	* windows-nat.c (struct lm_info_windows): Initialize field.
	(windows_make_so): Allocate lm_info_windows with new.
	(windows_free_so): Free lm_info_windows with delete.
2017-04-28 17:16:18 -04:00
Simon Marchi 9ccbfd7bc1 Class-ify lm_info_darwin
This patch makes lm_info_darwin a "real" class.  It initializes the
field and replaces XCNEW/xfree with new/delete.

gdb/ChangeLog:

	* solib-darwin.c (struct lm_info_darwin): Initialize field.
	(darwin_current_sos): Allocate lm_info_darwin with new, remove
	cleanup.
	(darwin_free_so): Free lm_info_darwin with delete.
2017-04-28 17:16:18 -04:00
Simon Marchi 76e75227c3 Class-ify lm_info_svr4
This patch makes lm_info_svr4 a "real" class.  It initializes fields,
uses bool and replaces XCNEW/xfree with new/delete.

The memcpy in svr4_copy_library_list is replaced by a usage of the
default copy constructor.

gdb/ChangeLog:

	* solib-svr4.h (struct lm_info_svr4): Initialize fields.
	<l_addr_p>: Change type to bool.
	* solib-svr4.c (lm_info_read): Allocate lm_info_svr4 with new.
	(svr4_free_so): Free lm_info_svr4 with delete.
	(svr4_copy_library_list): Replace memcpy with call to copy
	constructor.
	(library_list_start_library, svr4_default_sos): Allocate
	lm_info_svr4 with new.
2017-04-28 17:16:17 -04:00
Simon Marchi 51046d9e60 Class-ify lm_info_target
This patch makes lm_info_target a "real" class.  It adds a destructor,
uses std::string, initializes the fields and replaces XCNEW/xfree with
new/delete.

gdb/ChangeLog:

	* solib-target.c (struct lm_info_target): Add destructor,
	initialize fields.
	<name>: Change type to std::string.
	(library_list_start_library): Allocate lm_info_target with new.
	(solib_target_free_library_list): Free lm_info_target with
	delete.
	(solib_target_current_sos): Adapt to std::string.
	(solib_target_free_so): Free lm_info_target with delete.
2017-04-28 17:16:16 -04:00
Simon Marchi 4023ae762e Class-ify lm_info_frv
This patches makes lm_info_frv a "real" class.  It adds a destructor,
initializes the fields and replaces XCNEW/xfree with new/delete.

gdb/ChangeLog:

	* solib-frv.c (struct lm_info_frv): Add destructor, initialize
	fields.
	(frv_current_sos): Allocate lm_info_frv with new.
	(frv_relocate_main_executable): Free lm_info_frv with delete,
	allocate with new.
	(frv_clear_solib, frv_free_so): Free lm_info_frv with delete.
2017-04-28 17:16:16 -04:00
Simon Marchi af43057baf Fix indentation of lm_info_frv
This patch fixes the indentation of lm_info_frv, so that the real
changes of the following patch are not lost in the reformatting.

gdb/ChangeLog:

	* solib-frv.c (struct lm_info_frv): Fix indentation.
2017-04-28 17:16:15 -04:00
Simon Marchi b091120773 Class-ify lm_info_dsbt
This patches makes lm_info_dsbt a "real" class.  It introduces a
destructor, initializes the field and replaces XCNEW/xfree with
new/delete.

gdb/ChangeLog:

	* solib-dsbt.c (struct lm_info_dsbt): Add destructor, initialize
	map field.
	(dsbt_current_sos): Allocate lm_info_dsbt with new.
	(dsbt_relocate_main_executable): Free lm_info_dsbt with delete
	and allocate with new.
	(dsbt_clear_solib, dsbt_free_so): Free lm_info_dsbt with delete.
2017-04-28 17:16:14 -04:00
Simon Marchi 6c401f72e9 Class-ify lm_info_aix
This patch makes lm_info_aix a "real" class.  It uses std::string,
initializes fields in-class and replaces XCNEW/xfree with new/delete.
The solib_aix_new_lm_info can be replaced by using the default copy
constructor.

gdb/ChangeLog:

	* solib-aix.c (struct lm_info_aix): Initialize fields in-class.
	<filename, member_name>: Change type to std::string.
	(solib_aix_new_lm_info, solib_aix_xfree_lm_info): Remove.
	(library_list_start_library): Allocate lm_info_aix with new.
	(solib_aix_free_library_list, solib_aix_free_so): Free with delete.
	(solib_aix_current_sos): Adapt to std::string, copy lm_info_aix
	with copy constructor.
2017-04-28 17:16:14 -04:00
Simon Marchi d0e449a186 Make various lm_info implementations inherit from a base class
The lm_info structure is used to store target specific information about
mapped libraries.  It is currently defined as an opaque type in solist.h
and a pointer to it is included in solist, the target-agnostic object
representing a loaded shared library.  Multiple targets define their own
implementation of lm_info.

In anticipation of using C++ stuff (e.g. vector) in the lm_info objects,
we first need to avoid different definitions of classes with the same
name (which violates the one definition rule).  This patch does it by
having a base class (lm_info_base) from which all the specific lm_info
derive.  Each implementation is renamed to something that makes sense
(e.g. lm_info_aix for AIX).  The next logical step would probably be to
derive directly from so_list, it's not really obvious, so I'll keep that
for another day.

One special case is the Neutrino (nto) support.  It uses SVR4-style
libraries, but overrides some methods.  To do that, it needed to have
its own copy of SVR4's lm_info structure in nto-tdep.c, because it was
just not possible to put it in solib-svr4.h and include that file.  Over
time, that copy got out of sync, which is still the case today.  I can
only assume that the lm_addr function in nto-tdep.c is broken right now.
The first field of the old lm_info was a pointer (gdb_byte *), whereas
in the new lm_info it's an address in the inferior (CORE_ADDR).  Trying
to use that field today probably results in a crash.  With this
refactor, it's now possible to put lm_info_svr4 in solib-svr4.h and just
include it.  I have adapted the code in nto-tdep.c to that it builds,
but it's probably not correct.  Since I don't have the knowledge nor
setup to try this on Neutrino, somebody else would have to fix it.  But
I am confident that I am not making things worse than they already are.

gdb/ChangeLog:

	* solist.h (struct lm_info): Remove.
	(struct lm_info_base): New class.
	(struct so_list) <lm_info>: Change type to lm_info_base *.
	* nto-tdep.c (struct lm_info): Remove.
	(lm_addr): Adjust.
	* solib-aix.c (struct lm_info): Rename to ...
	(struct lm_info_aix): ... this.  Extend lm_info_base.
	(lm_info_p): Rename to ...
	(lm_info_aix_p): ... this, and adjust.
	(solib_aix_new_lm_info, solib_aix_xfree_lm_info,
	solib_aix_parse_libraries, library_list_start_library,
	solib_aix_free_library_list, solib_aix_parse_libraries,
	solib_aix_get_library_list,
	solib_aix_relocate_section_addresses, solib_aix_free_so,
	solib_aix_get_section_offsets,
	solib_aix_solib_create_inferior_hook, solib_aix_current_sos):
	Adjust.
	(struct solib_aix_inferior_data) <library_list>: Adjust.
	* solib-darwin.c (struct lm_info): Rename to ...
	(struct lm_info_darwin): ... this.  Extend lm_info_base.
	(darwin_current_sos, darwin_relocate_section_addresses): Adjust.
	* solib-dsbt.c (struct lm_info): Rename to ...
	(struct lm_info_dsbt): ... this.  Extend lm_info_base.
	(struct dsbt_info) <main_executable_lm_info): Adjust.
	(dsbt_current_sos, dsbt_relocate_main_executable, dsbt_free_so,
	dsbt_relocate_section_addresses): Adjust.
	* solib-frv.c (struct lm_info): Rename to ...
	(struct lm_info_frv): ... this.  Extend lm_info_base.
	(main_executable_lm_info): Adjust.
	(frv_current_sos, frv_relocate_main_executable, frv_free_so,
	frv_relocate_section_addresses, frv_fdpic_find_global_pointer,
	find_canonical_descriptor_in_load_object,
	frv_fdpic_find_canonical_descriptor): Adjust.
	* solib-svr4.c (struct lm_info): Move to solib-svr4.h, renamed
	to lm_info_svr4.
	(lm_info_read, lm_addr_check, svr4_keep_data_in_core,
	svr4_clear_so, svr4_copy_library_list,
	library_list_start_library, svr4_default_sos, svr4_read_so_list,
	svr4_current_sos, svr4_fetch_objfile_link_map,
	solist_update_incremental): Adjust.
	* solib-svr4.h (struct lm_info_svr4): Move here from
	solib-svr4.c.
	* solib-target.c (struct lm_info): Rename to ...
	(struct lm_info_target): ... this.  Extend lm_info_base.
	(lm_info_p): Rename to ...
	(lm_info_target_p): ... this.
	(solib_target_parse_libraries, library_list_start_segment,
	library_list_start_section, library_list_start_library,
	library_list_end_library, solib_target_free_library_list,
	solib_target_current_sos, solib_target_free_so,
	solib_target_relocate_section_addresses): Adjust.
	* windows-nat.c (struct lm_info): Rename to ...
	(struct lm_info_windows): ... this.  Extend lm_info_base.
	(windows_make_so, handle_load_dll, handle_unload_dll,
	windows_xfer_shared_libraries): Adjust.
2017-04-28 17:16:13 -04:00
Simon Marchi 434a402395 Standardize darwin's lm_info
Darwin's lm_info structure is used a little bit differently than the
other solib implementations.  The other implementations first allocate
an so_list object, then instanciate their specific lm_info structure,
and assign it to so_list::lm_info.

The Darwin implementation allocates both at the same time
(darwin_so_list).  This patch changes it to be like the others, so that
we'll be able to do some generalizations later.

gdb/ChangeLog:

	* solib-darwin.c (struct darwin_so_list): Remove.
	(darwin_current_sos): Allocate an so_list object instead of a
	darwin_so_list, separately allocate an lm_info object.
	(darwin_free_so): Free lm_info.
2017-04-28 17:16:12 -04:00