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.
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.
gdb/doc/ChangeLog:
* gdb.texinfo (Installed System-wide Configuration Scripts):
Add subsection describing the scripts now available under
the data-dir's system-gdbbinit subdirectory.
* NEWS: Add entry announcing the availability of system-wide
configuration scripts for ElinOS and Wind River Linux.
expand-symtabs, and renamed check-psymtabs.
* psymtab.c (maintenance_check_psymtabs): Renamed from
maintenance_check_symtabs. Only process already-expanded symbol
tables.
(_initialize_psymtab): Update.
* symmisc.c (maintenance_check_symtabs): New function.
(maintenance_expand_name_matcher): New function
(maintenance_expand_file_matcher): New function
(maintenance_expand_symtabs): New function.
(_initialize_symmisc): Add "mt check-symtabs" and "mt expand-symtabs"
commands.
doc/
* gdb.texinfo (Maintenance Commands): Update doc for
"maint check-psymtabs". Add doc for "maint check-symtabs",
"maint expand-symtabs".
testsuite/
* gdb.base/maint.exp: Update test for "maint check-psymtabs".
Add tests for "maint check-symtabs", "maint expand-symtabs".
Andrew Jenner <andrew@codesourcery.com>
Chung-Lin Tang <cltang@codesourcery.com>
Julian Brown <julian@codesourcery.com>
Based on the nios2-elf port from Altera Corporation.
gdb/
* Makefile.in (ALL_TARGET_OBS): Add nios2-tdep.o and
nios2-linux-tdep.o.
(HFILES_NO_SRCDIR): Add nios2-tdep.h.
(ALLDEPFILES): Add nios2-tdep.c and nios2-linux-tdep.c.
* configure.tgt: Add nios2*-*-linux* and nios2*-*-* targets.
* nios2-tdep.h: New.
* nios2-tdep.c: New.
* nios2-linux-tdep.c: New.
* features/Makefile (WHICH): Add nios2-linux.
(nios2-linux-expedite): Set.
* features/nios2-cpu.xml: New.
* features/nios2.xml: New.
* features/nios2-linux.xml: New.
* features/nios2.c: New (autogenerated).
* features/nios2-linux.c: New (autogenerated).
* regformats/nios2-linux.dat: New (autogenerated).
* NEWS (Changes since GDB 7.6): Add new Nios II targets
and commands.
gdb/doc/
* gdb.texinfo (Nios II): New section.
(Nios II Features): New section.
Mention "set foo unlimited" in NEWS, right below the "New options"
section.
2013-04-16 Pedro Alves <palves@redhat.com>
Eli Zaretskii <eliz@gnu.org>
* NEWS: Mention "set foo unlimited".
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.
x86_64/Cygwin is only mentioned as a new target, but we gained support
for building a native x86_64/Cygwin debugger too.
gdb/
2013-04-03 Pedro Alves <palves@redhat.com>
* NEWS: Mention x86_64/Cygwin as new native configuration.
I hacked "apropos" to dump the whole set of commands (just make it
accept the entry string as regex), and then diffed the output of 7.5
vs 7.6, --enable-targets=all builds. That allowed then checking
whether some commands had not been mentioned in NEWS or the manual.
These are what I found missing. We've been a bit negligent in
requiring documentation bits for debug commands.
gdb/
2013-04-02 Pedro Alves <palves@redhat.com>
* NEWS: Mention "set/show debug aarch64", "set/show debug
coff-pe-read" and "set/show debug mach-o".
gdb/doc/
2013-04-02 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Debugging Output): Document "set/show debug
aarch64", "set/show debug coff-pe-read" and "set/show debug
mach-o".
The "New commands" section reads:
"New commands (for set/show, see "New options" below)"
gdb/
2013-04-02 Pedro Alves <palves@redhat.com>
* NEWS: Move "set debug notification" and "set trace-buffer-size"
under "New options".
GDB currently sends a qTStatus even if the target previously replied
an empty packet to a previous qTStatus. If the target doesn't
recognize the packet, there's no point in trying again.
The machinery we have in place is packet_ok, which has the nice side
effect of forcing one to install a configuration command/knob for the
packet in question, which is often handy when you need to debug
things, and/or emulate a target that doesn't support the packet, or even,
it can be used as workaround for the old broken kgdb's that return error
to qTSTatus instead of an empty packet.
gdb/
2013-03-28 Pedro Alves <palves@redhat.com>
* NEWS (New options): New section.
(New options): Mention set/show remote trace-status-packet.
* remote.c (PACKET_qTStatus): New enumeration value.
(remote_get_trace_status): Skip sending qTStatus if the packet is
disabled. Use packet_ok.
(_initialize_remote): Register a configuration command for
qTStatus packet.
gdb/doc/
2013-03-28 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Remote Configuration) <set remote @var{name}-packet
table>: Add entry for "trace-status".
* 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.
record-full.
Document two new record sub-commands "record instruction-history" and
"record function-call-history" and two associated set/show commands
"set record instruction-history-size" and "set record
function-call-history-size".
Add this to NEWS.
gdb/
* NEWS: Add record changes.
doc/
* gdb.texinfo (Process Record and Replay): Document record
changes.
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.
Hafiz Abid Qadeer <abidh@codesourcery.com>
gdb/
* NEWS: Mention new field "trace-file".
* tracepoint.c (trace_status_mi): Output "trace-file" field.
(tfile_open): Record the trace file's filename in the trace
status.
(tfile_files_info): Mention the name of the trace file.
Check the "filename" field explicitely.
(trace_status_command): Explicitely check "filename" field.
(trace_find_command): Ditto.
(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.
* tracepoint.h (struct trace_status) <from_file>: Rename it
to "filename" and make it hold the trace file's filename
instead of a boolean.
* remote.c (remote_get_trace_status): Initialize "filename"
field with NULL instead of 0.
gdb/doc/
* gdb.texinfo (GDB/MI Tracepoint Commands) <-trace-status>:
Document the "trace-file" field.
gdb/testsuite/
* gdb.trace/tfile.exp: Add test for -trace-status command.
2013-02-06 Yao Qi <yao@codesourcery.com>
* gdb.texinfo (GDB/MI Async Records): Document new MI
notification "=tsv-modified". Update the document of MI
notification "=tsv-created".
* observer.texi (GDB Observers): New observer tsv_modified.
Update observer tsv_created and tsv_deleted.
gdb:
2013-02-06 Yao Qi <yao@codesourcery.com>
* mi/mi-interp.c: Include "tracepoint.h".
(mi_tsv_modified): Declare.
(mi_tsv_created, mi_tsv_deleted): Update declaration.
(mi_interpreter_init): Call observer_attach_tsv_modified.
(mi_tsv_modified): New.
(mi_tsv_created, mi_tsv_deleted): Update.
* tracepoint.c (trace_variable_command): Call
observer_notify_tsv_modified if the initial value of tsv is
changed.
(delete_trace_state_variable): Call
observer_notify_tsv_deleted earlier.
(trace_variable_command): Caller update.
(create_tsv_from_upload): Likewise.
* observer.sh: Declare "struct trace_state_variable".
* NEWS: Mention the new MI notification "=tsv-modified".
gdb/testsuite:
2013-02-06 Yao Qi <yao@codesourcery.com>
* gdb.trace/mi-tsv-changed.exp (test_create_delete_tsv): Rename
to ...
(test_create_delete_modify_tsv): ... here. New test on modifying
the initial value of a tsv.
Add a new variable that controls a way in which filenames are
displayed.
* NEWS (set filename-display): New entry.
* source.c (filename_display_basename, filename_display_relative)
(filename_display_absolute, filename_display_kind_names)
(filename_display_string, show_filename_display_string)
(symtab_to_filename_for_display): New.
(_initialize_source): Added initialization of 'filename-display'
variable.
* source.h (symtab_to_filename_for_display): Added declaration.
* stack.c (print_frame): Added new variable and calling of a new
function and condition with this variable. Changed third argument of
calling of a function.
gdb/doc/
* gdb.texinfo (Backtrace): Added description of 'filename-display'
variable in 'set/show backtrace' section.
gdb/testsuite/
* gdb.dwarf2/dw2-dir-file-name.exp: New file.
* gdb.dwarf2/dw2-dir-file-name.c: New file.
internal representation of architecture via GDB Python API.
* Makefile.in: Add entries corresponding to the new file
python/py-arch.c.
* NEWS (Python Scripting): Add entries for the new class
gdb.Architecture and the new method gdb.Frame.architecture.
* python/py-arch.c: Implement gdb.Architecture class.
* python/py-frame.c (frapy_arch): Implement the method
gdb.Frame.architecture().
(frame_object_methods): Add 'architecture' to the method table.
* python/python-internal.h: Add declarations of new utility
functions.
* python/python.c (_initialize_python): Initialize
gdb.Architecture class.
* doc/gdb.texinfo (Architectures In Python): New sub-sub-section
describing the gdb.Architecture class.
(Frames In Python): Add description about the new method
gdb.Frame.architecture().
* testsuite/gdb.python/frame.exp: Add a test for
gdb.Frame.architecture() method.
* breakpoint.c (print_one_breakpoint_location): Display the
state of 'installed' of each non-pending location of a tracepoint
in both CLI and MI.
(download_tracepoint_locations): Notify 'breakpoint-modified'
observer if any tracepoint location is downloaded.
* tracepoint.c (start_tracing): Likewise.
(merge_uploaded_tracepoints): Record all modified
tracepoints and notify 'breakpoint-modified' observer for them.
* NEWS: Mention the change for CLI and MI.
gdb/doc:
2012-12-15 Yao Qi <yao@codesourcery.com>
* gdb.texinfo (Listing Tracepoints): New item and example about
'installed on target' output.
Add more in the example about 'installed on target'.
(GDB/MI Breakpoint Commands): Doc about 'installed field.
gdb/testsuite:
2012-12-15 Yao Qi <yao@codesourcery.com>
* gdb.trace/mi-tracepoint-changed.exp (test_pending_resolved): Check
'installed' field in '=breakpoint-modified'.
(test_reconnect): Check 'installed' field in
'=breakpoint-modified' and '=breakpoint-created'.
* gdb.trace/actions.exp: Update test for 'installed' field.
* gdb.trace/change-loc.exp (tracepoint_change_loc_1):
(tracepoint_change_loc_2): Likewise.
Check 'info tracepoint' display nothing else.
* gdb.trace/deltrace.exp: Likewise.
* gdb.trace/infotrace.exp: Likewise.
* gdb.trace/mi-traceframe-changed.exp (test_tfind_remote):
Likewise.
* gdb.trace/passcount.exp: Likewise.
* gdb.trace/tracecmd.exp: Likewise.
* gdb.trace/while-stepping.exp: Likewise.
2012-11-16 Mircea Gherzan <mircea.gherzan@intel.com>
gdb/doc:
* gdb.texinfo (GDB/MI Catchpoint Commands): New section.
gdb/:
* NEWS: mention the -catch-load/-catch-unload MI commands.
* 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.
(get_init_files): If --data-directory is provided,
and SYSTEM_GDBINIT lives in data-directory, look for it there.
* NEWS: Mention it.
doc/
* gdb.texinfo (System-wide configuration): If the system-wide init
file lives in the data-directory, and --data-directory is provided,
look for it there.
* mi/mi-main.c (mi_cmd_data_write_memory): Handle additional
parameter COUNT, for pattern filling of memory regions.
* NEWS: Mention it.
doc
* gdb.texinfo (GDB/MI Data Manipulation): Document new optional
parameter "count" of -data-write-memory-bytes, and add an example.
testsuite
* gdb.mi/mi-fill-memory.exp: New test.
* 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.
