2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
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/* Perform an inferior function call, for GDB, the GNU debugger.
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2017-01-01 07:50:51 +01:00
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Copyright (C) 1986-2017 Free Software Foundation, Inc.
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2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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2007-08-23 20:08:50 +02:00
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the Free Software Foundation; either version 3 of the License, or
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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2007-08-23 20:08:50 +02:00
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
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#include "defs.h"
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2015-09-09 19:23:25 +02:00
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#include "infcall.h"
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2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
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#include "breakpoint.h"
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2010-03-18 02:09:26 +01:00
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#include "tracepoint.h"
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2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
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#include "target.h"
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#include "regcache.h"
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#include "inferior.h"
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Add new infrun.h header.
Move infrun.c declarations out of inferior.h to a new infrun.h file.
Tested by building on:
i686-w64-mingw32, enable-targets=all
x86_64-linux, enable-targets=all
i586-pc-msdosdjgpp
And also grepped the whole tree for each symbol moved to find where
infrun.h might be necessary.
gdb/
2014-05-22 Pedro Alves <palves@redhat.com>
* inferior.h (debug_infrun, debug_displaced, stop_on_solib_events)
(sync_execution, sched_multi, step_stop_if_no_debug, non_stop)
(disable_randomization, enum exec_direction_kind)
(execution_direction, stop_registers, start_remote)
(clear_proceed_status, proceed, resume, user_visible_resume_ptid)
(wait_for_inferior, normal_stop, get_last_target_status)
(prepare_for_detach, fetch_inferior_event, init_wait_for_inferior)
(insert_step_resume_breakpoint_at_sal)
(follow_inferior_reset_breakpoints, stepping_past_instruction_at)
(set_step_info, print_stop_event, signal_stop_state)
(signal_print_state, signal_pass_state, signal_stop_update)
(signal_print_update, signal_pass_update)
(update_signals_program_target, clear_exit_convenience_vars)
(displaced_step_dump_bytes, update_observer_mode)
(signal_catch_update, gdb_signal_from_command): Move
declarations ...
* infrun.h: ... to this new file.
* amd64-tdep.c: Include infrun.h.
* annotate.c: Include infrun.h.
* arch-utils.c: Include infrun.h.
* arm-linux-tdep.c: Include infrun.h.
* arm-tdep.c: Include infrun.h.
* break-catch-sig.c: Include infrun.h.
* breakpoint.c: Include infrun.h.
* common/agent.c: Include infrun.h instead of inferior.h.
* corelow.c: Include infrun.h.
* event-top.c: Include infrun.h.
* go32-nat.c: Include infrun.h.
* i386-tdep.c: Include infrun.h.
* inf-loop.c: Include infrun.h.
* infcall.c: Include infrun.h.
* infcmd.c: Include infrun.h.
* infrun.c: Include infrun.h.
* linux-fork.c: Include infrun.h.
* linux-nat.c: Include infrun.h.
* linux-thread-db.c: Include infrun.h.
* monitor.c: Include infrun.h.
* nto-tdep.c: Include infrun.h.
* procfs.c: Include infrun.h.
* record-btrace.c: Include infrun.h.
* record-full.c: Include infrun.h.
* remote-m32r-sdi.c: Include infrun.h.
* remote-mips.c: Include infrun.h.
* remote-notif.c: Include infrun.h.
* remote-sim.c: Include infrun.h.
* remote.c: Include infrun.h.
* reverse.c: Include infrun.h.
* rs6000-tdep.c: Include infrun.h.
* s390-linux-tdep.c: Include infrun.h.
* solib-irix.c: Include infrun.h.
* solib-osf.c: Include infrun.h.
* solib-svr4.c: Include infrun.h.
* target.c: Include infrun.h.
* top.c: Include infrun.h.
* windows-nat.c: Include infrun.h.
* mi/mi-interp.c: Include infrun.h.
* mi/mi-main.c: Include infrun.h.
* python/py-threadevent.c: Include infrun.h.
2014-05-22 13:29:11 +02:00
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#include "infrun.h"
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
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#include "block.h"
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#include "gdbcore.h"
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#include "language.h"
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2004-02-14 Elena Zannoni <ezannoni@redhat.com>
* symfile.c (init_entry_point_info, entry_point_address): Move
from here...
* objfiles.c (init_entry_point_info, entry_point_address):..to
here.
* symfile.h (init_entry_point_info, entry_point_address): Remove
prototypes.
* objfiles.h (init_entry_point_info, entry_point_address):Add
prototypes.
* cris-tdep.c: Remove include of symfile.h. Add include of
objfiles.h.
* infcall.c: Ditto.
* mcore-tdep.c: Ditto.
* mn10300-tdep.c: Ditto.
* sh64-tdep.c: Ditto.
* v850-tdep.c: Ditto.
* arm-tdep.c: Remove include of symfile.h.
* blockframe.c: Ditto.
* coffread.c: Ditto.
* dbxread.c: Ditto.
* dwarf2read.c: Ditto.
* dwarfread.c: Ditto.
* frv-tdep.c: Ditto.
* ia64-tdep.c: Ditto.
* mdebugread.c: Ditto.
* mipsread.c: Ditto.
* rs6000-tdep.c: Ditto.
* s390-tdep.c: Ditto.
* sh-tdep.c: Ditto.
* xstormy16-tdep.c: Ditto.
* gdbarch.sh: Remove include of symfile.h.
* gdbarch.c: Regenerate.
* solib-irix.c (enable_break): Use entry_point_address().
Add comment about include file.
* xcoffread.c: Add comment about include file.
* Makefile.in (arm-tdep.o, blockframe.o, coffread.o, cris-tdep.o)
(dbxread.o, dwarf2read.o, dwarfread.o, frv-tdep.o, gdbarch.o)
(ia64-tdep.o, infcall.o, mcore-tdep.o, mdebugread.o, mipsread.o)
(mn10300-tdep.o, rs6000-nat.o, s390-tdep.o, sh64-tdep.o)
(sh-tdep.o, v850-tdep.o, xstormy16-tdep.o): Update dependencies.
2004-02-14 16:46:33 +01:00
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#include "objfiles.h"
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2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
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#include "gdbcmd.h"
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#include "command.h"
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2004-08-02 19:39:53 +02:00
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#include "dummy-frame.h"
|
2008-01-08 20:28:09 +01:00
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#include "ada-lang.h"
|
2008-09-08 23:46:21 +02:00
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#include "gdbthread.h"
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make dprintf.exp pass in target async mode
When target-async is enabled, dprintf.exp fails:
Running ../../../src/gdb/testsuite/gdb.base/dprintf.exp ...
FAIL: gdb.base/dprintf.exp: 1st dprintf, call
FAIL: gdb.base/dprintf.exp: 2nd dprintf, call
FAIL: gdb.base/dprintf.exp: Set dprintf function
FAIL: gdb.base/dprintf.exp: 1st dprintf, fprintf
FAIL: gdb.base/dprintf.exp: 2nd dprintf, fprintf
Breakpoint 2, main (argc=1, argv=0x7fffffffd3f8) at ../../../src/gdb/testsuite/gdb.base/dprintf.c:33
33 int loc = 1234;
(gdb) continue
Continuing.
kickoff 1234
also to stderr 1234
At foo entry
(gdb) FAIL: gdb.base/dprintf.exp: 1st dprintf, call
The problem is that GDB gave the prompt back to the user too early.
This happens when calling functions while handling an event that
doesn't cause a user visible stop. dprintf with "set dprintf-style
gdb" is one such case. This patch adds a test case that has a
breakpoint with a condition that calls a function that returns false,
so that regression testing isn't dependent on the implementation of
dprintf.
The problem happens because run_inferior_call causes GDB to forget
that it is running in sync_execution mode, so any event that runs an
inferior call causes fetch_inferior_event to display the prompt, even
if the event should not result in a user visible stop (that is, gdb
resumes the inferior and waits for the next event).
This patch fixes the issue by noticing when GDB was in sync_execution
mode in run_inferior_call, and taking care to restore this state
afterward.
gdb/
2014-03-20 Tom Tromey <tromey@redhat.com>
PR cli/15718
* infcall.c: Include event-top.h.
(run_inferior_call): Call async_disable_stdin if needed.
gdb/testsuite/
2014-03-20 Tom Tromey <tromey@redhat.com>
Pedro Alves <palves@redhat.com>
PR cli/15718
* gdb.base/condbreak-call-false.c: New file.
* gdb.base/condbreak-call-false.exp: New file.
2014-03-20 18:03:43 +01:00
|
|
|
#include "event-top.h"
|
New python events: inferior call, register/memory changed.
gdb/ChangeLog:
* NEWS: Mention new Python events.
* Makefile.in (SUBDIR_PYTHON_OBS): Add py-infevents.o.
(SUBDIR_PYTHON_SRCS): Add py-infevents.c.
(py-infevents.o): New rule.
* doc/observer.texi (inferior_call_pre, inferior_call_post)
(memory_changed, register_changed): New observers.
* infcall.c (call_function_by_hand): Notify observer before and
after inferior call.
* python/py-event.h (inferior_call_kind): New enum.
(emit_inferior_call_event): New prototype.
(emit_register_changed_event): New prototype.
(emit_memory_changed_event): New prototype.
* python/py-events.h (events_object): New registries
inferior_call, memory_changed and register_changed.
* python/py-evts.c (gdbpy_initialize_py_events): Add the
inferior_call, memory_changed and register_changed registries.
* python/py-infevents.c: New.
* python/py-inferior.c (python_on_inferior_call_pre)
(python_on_inferior_call_post, python_on_register_change)
(python_on_memory_change): New functions.
(gdbpy_initialize_inferior): Attach python handler to new
observers.
* python/py-infthread.c(gdbpy_create_ptid_object): New.
(thpy_get_ptid) Use gdbpy_create_ptid_object.
* python/python-internal.h:
(gdbpy_create_ptid_object)
(gdbpy_initialize_inferior_call_pre_event)
(gdbpy_initialize_inferior_call_post_event)
(gdbpy_initialize_register_changed_event)
(gdbpy_initialize_memory_changed_event): New prototypes.
* python/python.c (_initialize_python): Initialize new events.
* valops.c (value_assign): Notify register_changed observer.
gdb/doc/ChangeLog:
* python.texi (Events In Python): Document new events
InferiorCallPreEvent, InferiorCallPostEvent, MemoryChangedEvent
and RegisterChangedEvent.
gdb/testsuite/ChangeLog:
* gdb.python/py-events.py (inferior_call_handler): New.
(register_changed_handler, memory_changed_handler): New.
(test_events.invoke): Register new handlers.
* gdb.python/py-events.exp: Add tests for inferior call,
memory_changed and register_changed events.
2014-12-02 20:15:29 +01:00
|
|
|
#include "observer.h"
|
Merge async and sync code paths some more
This patch makes the execution control code use largely the same
mechanisms in both sync- and async-capable targets. This means using
continuations and use the event loop to react to target events on sync
targets as well. The trick is to immediately mark infrun's event loop
source after resume instead of calling wait_for_inferior. Then
fetch_inferior_event is adjusted to do a blocking wait on sync
targets.
Tested on x86_64 Fedora 20, native and gdbserver, with and without
"maint set target-async off".
gdb/ChangeLog:
2015-09-09 Pedro Alves <palves@redhat.com>
* breakpoint.c (bpstat_do_actions_1, until_break_command): Don't
check whether the target can async.
* inf-loop.c (inferior_event_handler): Only call target_async if
the target can async.
* infcall.c: Include top.h and interps.h.
(run_inferior_call): For the interpreter to sync mode while
running the infcall. Call wait_sync_command_done instead of
wait_for_inferior plus normal_stop.
* infcmd.c (prepare_execution_command): Don't check whether the
target can async when running in the foreground.
(step_1): Delete synchronous case handling.
(step_once): Always install a continuation, even in sync mode.
(until_next_command, finish_forward): Don't check whether the
target can async.
(attach_command_post_wait, notice_new_inferior): Always install a
continuation, even in sync mode.
* infrun.c (mark_infrun_async_event_handler): New function.
(proceed): In sync mode, mark infrun's event source instead of
waiting for events here.
(fetch_inferior_event): If the target can't async, do a blocking
wait.
(prepare_to_wait): In sync mode, mark infrun's event source.
(infrun_async_inferior_event_handler): No longer bail out if the
target can't async.
* infrun.h (mark_infrun_async_event_handler): New declaration.
* linux-nat.c (linux_nat_wait_1): Remove calls to
set_sigint_trap/clear_sigint_trap.
(linux_nat_terminal_inferior): No longer check whether the target
can async.
* mi/mi-interp.c (mi_on_sync_execution_done): Update and simplify
comment.
(mi_execute_command_input_handler): No longer check whether the
target is async. Update and simplify comment.
* target.c (default_target_wait): New function.
* target.h (struct target_ops) <to_wait>: Now defaults to
default_target_wait.
(default_target_wait): Declare.
* top.c (wait_sync_command_done): New function, factored out from
...
(maybe_wait_sync_command_done): ... this.
* top.h (wait_sync_command_done): Declare.
* target-delegates.c: Regenerate.
2015-09-09 19:23:23 +02:00
|
|
|
#include "top.h"
|
|
|
|
#include "interps.h"
|
2015-09-09 19:23:24 +02:00
|
|
|
#include "thread-fsm.h"
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
|
|
|
|
/* If we can't find a function's name from its address,
|
|
|
|
we print this instead. */
|
|
|
|
#define RAW_FUNCTION_ADDRESS_FORMAT "at 0x%s"
|
|
|
|
#define RAW_FUNCTION_ADDRESS_SIZE (sizeof (RAW_FUNCTION_ADDRESS_FORMAT) \
|
|
|
|
+ 2 * sizeof (CORE_ADDR))
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
|
|
|
/* NOTE: cagney/2003-04-16: What's the future of this code?
|
|
|
|
|
|
|
|
GDB needs an asynchronous expression evaluator, that means an
|
|
|
|
asynchronous inferior function call implementation, and that in
|
|
|
|
turn means restructuring the code so that it is event driven. */
|
|
|
|
|
|
|
|
/* How you should pass arguments to a function depends on whether it
|
|
|
|
was defined in K&R style or prototype style. If you define a
|
|
|
|
function using the K&R syntax that takes a `float' argument, then
|
|
|
|
callers must pass that argument as a `double'. If you define the
|
|
|
|
function using the prototype syntax, then you must pass the
|
|
|
|
argument as a `float', with no promotion.
|
|
|
|
|
|
|
|
Unfortunately, on certain older platforms, the debug info doesn't
|
|
|
|
indicate reliably how each function was defined. A function type's
|
2016-09-06 17:29:15 +02:00
|
|
|
TYPE_PROTOTYPED flag may be clear, even if the function was defined
|
|
|
|
in prototype style. When calling a function whose TYPE_PROTOTYPED
|
|
|
|
flag is clear, GDB consults this flag to decide what to do.
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
|
|
|
For modern targets, it is proper to assume that, if the prototype
|
|
|
|
flag is clear, that can be trusted: `float' arguments should be
|
|
|
|
promoted to `double'. For some older targets, if the prototype
|
|
|
|
flag is clear, that doesn't tell us anything. The default is to
|
|
|
|
trust the debug information; the user can override this behavior
|
|
|
|
with "set coerce-float-to-double 0". */
|
|
|
|
|
|
|
|
static int coerce_float_to_double_p = 1;
|
2005-02-24 Andrew Cagney <cagney@gnu.org>
Add show_VARIABLE functions, update add_setshow call.
* varobj.c (_initialize_varobj, show_varobjdebug): Add and update.
* valprint.c (_initialize_valprint, show_print_max)
(show_stop_print_at_null, show_repeat_count_threshold)
(show_prettyprint_structs, show_unionprint)
(show_prettyprint_arrays, show_addressprint, show_input_radix)
(show_output_radix): Ditto.
* valops.c (_initialize_valops, show_overload_resolution): Ditto.
* utils.c (initialize_utils, show_chars_per_line)
(show_lines_per_page, show_demangle, show_pagination_enabled)
(show_sevenbit_strings, show_asm_demangle): Ditto
* tui/tui-win.c (_initialize_tui_win, show_tui_border_kind)
(show_tui_border_mode, show_tui_active_border_mode): Ditto.
* top.c (init_main, show_new_async_prompt)
(show_async_command_editing_p, show_write_history_p)
(show_history_size, show_history_filename, show_caution)
(show_annotation_level, init_main): Ditto.
* target.c (initialize_targets, show_targetdebug)
(show_trust_readonly): Ditto.
* symfile.c (_initialize_symfile, show_symbol_reloading)
(show_ext_args, show_download_write_size)
(show_debug_file_directory): Ditto.
* source.c (_initialize_source, show_lines_to_list): Ditto.
* solib.c (_initialize_solib, show_auto_solib_add)
(show_solib_search_path): Ditto.
* p-valprint.c (_initialize_pascal_valprint)
(show_pascal_static_field_print): Ditto.
* printcmd.c (_initialize_printcmd, show_max_symbolic_offset)
(show_print_symbol_filename): Add and update.
* parse.c (_initialize_parse, show_expressiondebug): Dito.
* observer.c (_initialize_observer, show_observer_debug): Dito.
* maint.c (_initialize_maint_cmds, show_watchdog)
(show_maintenance_profile_p): Dito.
* linux-nat.c (_initialize_linux_nat, show_debug_linux_nat): Dito.
* infrun.c (_initialize_infrun, show_debug_infrun)
(show_stop_on_solib_events, show_follow_fork_mode_string)
(show_scheduler_mode, show_step_stop_if_no_debug): Ditto.
* infcall.c (_initialize_infcall, show_coerce_float_to_double_p)
(show_unwind_on_signal_p): Ditto.
* gdbtypes.c (build_gdbtypes, show_opaque_type_resolution)
(_initialize_gdbtypes, show_overload_debug): Ditto.
* gdb-events.c, gdb-events.sh (_initialize_gdb_events)
(show_gdb_events_debug): Ditto.
* gdbarch.c, gdbarch.sh (show_gdbarch_debug)
(_initialize_gdbarch): Ditto.
* frame.c (_initialize_frame, show_backtrace_past_main)
(show_backtrace_past_entry, show_backtrace_limit)
(show_frame_debug): Ditto.
* exec.c (_initialize_exec, show_write_files): Ditto.
* dwarf2read.c (_initialize_dwarf2_read)
(show_dwarf2_max_cache_age): Ditto.
* demangle.c (_initialize_demangler)
(show_demangling_style_names): Ditto.
* dcache.c (_initialize_dcache, show_dcache_enabled_p): Ditto.
* cp-valprint.c (show_static_field_print)
(_initialize_cp_valprint, show_vtblprint, show_objectprint): Ditto.
* corefile.c (_initialize_core, show_gnutarget_string): Ditto.
* cli/cli-logging.c (_initialize_cli_logging)
(show_logging_overwrite, show_logging_redirect)
(show_logging_filename): Ditto.
* cli/cli-cmds.c (show_info_verbose, show_history_expansion_p)
(init_cli_cmds, show_baud_rate, show_remote_debug)
(show_remote_timeout, show_max_user_call_depth): Ditto.
* charset.c (show_host_charset_name, show_target_charset_name)
(initialize_charset): Ditto.
* breakpoint.c (show_can_use_hw_watchpoints)
(show_pending_break_support, _initialize_breakpoint): Ditto.
2005-02-24 14:51:36 +01:00
|
|
|
static void
|
|
|
|
show_coerce_float_to_double_p (struct ui_file *file, int from_tty,
|
|
|
|
struct cmd_list_element *c, const char *value)
|
|
|
|
{
|
2011-01-05 23:22:53 +01:00
|
|
|
fprintf_filtered (file,
|
|
|
|
_("Coercion of floats to doubles "
|
|
|
|
"when calling functions is %s.\n"),
|
2005-02-24 Andrew Cagney <cagney@gnu.org>
Add show_VARIABLE functions, update add_setshow call.
* varobj.c (_initialize_varobj, show_varobjdebug): Add and update.
* valprint.c (_initialize_valprint, show_print_max)
(show_stop_print_at_null, show_repeat_count_threshold)
(show_prettyprint_structs, show_unionprint)
(show_prettyprint_arrays, show_addressprint, show_input_radix)
(show_output_radix): Ditto.
* valops.c (_initialize_valops, show_overload_resolution): Ditto.
* utils.c (initialize_utils, show_chars_per_line)
(show_lines_per_page, show_demangle, show_pagination_enabled)
(show_sevenbit_strings, show_asm_demangle): Ditto
* tui/tui-win.c (_initialize_tui_win, show_tui_border_kind)
(show_tui_border_mode, show_tui_active_border_mode): Ditto.
* top.c (init_main, show_new_async_prompt)
(show_async_command_editing_p, show_write_history_p)
(show_history_size, show_history_filename, show_caution)
(show_annotation_level, init_main): Ditto.
* target.c (initialize_targets, show_targetdebug)
(show_trust_readonly): Ditto.
* symfile.c (_initialize_symfile, show_symbol_reloading)
(show_ext_args, show_download_write_size)
(show_debug_file_directory): Ditto.
* source.c (_initialize_source, show_lines_to_list): Ditto.
* solib.c (_initialize_solib, show_auto_solib_add)
(show_solib_search_path): Ditto.
* p-valprint.c (_initialize_pascal_valprint)
(show_pascal_static_field_print): Ditto.
* printcmd.c (_initialize_printcmd, show_max_symbolic_offset)
(show_print_symbol_filename): Add and update.
* parse.c (_initialize_parse, show_expressiondebug): Dito.
* observer.c (_initialize_observer, show_observer_debug): Dito.
* maint.c (_initialize_maint_cmds, show_watchdog)
(show_maintenance_profile_p): Dito.
* linux-nat.c (_initialize_linux_nat, show_debug_linux_nat): Dito.
* infrun.c (_initialize_infrun, show_debug_infrun)
(show_stop_on_solib_events, show_follow_fork_mode_string)
(show_scheduler_mode, show_step_stop_if_no_debug): Ditto.
* infcall.c (_initialize_infcall, show_coerce_float_to_double_p)
(show_unwind_on_signal_p): Ditto.
* gdbtypes.c (build_gdbtypes, show_opaque_type_resolution)
(_initialize_gdbtypes, show_overload_debug): Ditto.
* gdb-events.c, gdb-events.sh (_initialize_gdb_events)
(show_gdb_events_debug): Ditto.
* gdbarch.c, gdbarch.sh (show_gdbarch_debug)
(_initialize_gdbarch): Ditto.
* frame.c (_initialize_frame, show_backtrace_past_main)
(show_backtrace_past_entry, show_backtrace_limit)
(show_frame_debug): Ditto.
* exec.c (_initialize_exec, show_write_files): Ditto.
* dwarf2read.c (_initialize_dwarf2_read)
(show_dwarf2_max_cache_age): Ditto.
* demangle.c (_initialize_demangler)
(show_demangling_style_names): Ditto.
* dcache.c (_initialize_dcache, show_dcache_enabled_p): Ditto.
* cp-valprint.c (show_static_field_print)
(_initialize_cp_valprint, show_vtblprint, show_objectprint): Ditto.
* corefile.c (_initialize_core, show_gnutarget_string): Ditto.
* cli/cli-logging.c (_initialize_cli_logging)
(show_logging_overwrite, show_logging_redirect)
(show_logging_filename): Ditto.
* cli/cli-cmds.c (show_info_verbose, show_history_expansion_p)
(init_cli_cmds, show_baud_rate, show_remote_debug)
(show_remote_timeout, show_max_user_call_depth): Ditto.
* charset.c (show_host_charset_name, show_target_charset_name)
(initialize_charset): Ditto.
* breakpoint.c (show_can_use_hw_watchpoints)
(show_pending_break_support, _initialize_breakpoint): Ditto.
2005-02-24 14:51:36 +01:00
|
|
|
value);
|
|
|
|
}
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
|
|
|
/* This boolean tells what gdb should do if a signal is received while
|
|
|
|
in a function called from gdb (call dummy). If set, gdb unwinds
|
|
|
|
the stack and restore the context to what as it was before the
|
|
|
|
call.
|
|
|
|
|
2011-01-09 04:08:57 +01:00
|
|
|
The default is to stop in the frame where the signal was received. */
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2012-05-03 02:10:07 +02:00
|
|
|
static int unwind_on_signal_p = 0;
|
2005-02-24 Andrew Cagney <cagney@gnu.org>
Add show_VARIABLE functions, update add_setshow call.
* varobj.c (_initialize_varobj, show_varobjdebug): Add and update.
* valprint.c (_initialize_valprint, show_print_max)
(show_stop_print_at_null, show_repeat_count_threshold)
(show_prettyprint_structs, show_unionprint)
(show_prettyprint_arrays, show_addressprint, show_input_radix)
(show_output_radix): Ditto.
* valops.c (_initialize_valops, show_overload_resolution): Ditto.
* utils.c (initialize_utils, show_chars_per_line)
(show_lines_per_page, show_demangle, show_pagination_enabled)
(show_sevenbit_strings, show_asm_demangle): Ditto
* tui/tui-win.c (_initialize_tui_win, show_tui_border_kind)
(show_tui_border_mode, show_tui_active_border_mode): Ditto.
* top.c (init_main, show_new_async_prompt)
(show_async_command_editing_p, show_write_history_p)
(show_history_size, show_history_filename, show_caution)
(show_annotation_level, init_main): Ditto.
* target.c (initialize_targets, show_targetdebug)
(show_trust_readonly): Ditto.
* symfile.c (_initialize_symfile, show_symbol_reloading)
(show_ext_args, show_download_write_size)
(show_debug_file_directory): Ditto.
* source.c (_initialize_source, show_lines_to_list): Ditto.
* solib.c (_initialize_solib, show_auto_solib_add)
(show_solib_search_path): Ditto.
* p-valprint.c (_initialize_pascal_valprint)
(show_pascal_static_field_print): Ditto.
* printcmd.c (_initialize_printcmd, show_max_symbolic_offset)
(show_print_symbol_filename): Add and update.
* parse.c (_initialize_parse, show_expressiondebug): Dito.
* observer.c (_initialize_observer, show_observer_debug): Dito.
* maint.c (_initialize_maint_cmds, show_watchdog)
(show_maintenance_profile_p): Dito.
* linux-nat.c (_initialize_linux_nat, show_debug_linux_nat): Dito.
* infrun.c (_initialize_infrun, show_debug_infrun)
(show_stop_on_solib_events, show_follow_fork_mode_string)
(show_scheduler_mode, show_step_stop_if_no_debug): Ditto.
* infcall.c (_initialize_infcall, show_coerce_float_to_double_p)
(show_unwind_on_signal_p): Ditto.
* gdbtypes.c (build_gdbtypes, show_opaque_type_resolution)
(_initialize_gdbtypes, show_overload_debug): Ditto.
* gdb-events.c, gdb-events.sh (_initialize_gdb_events)
(show_gdb_events_debug): Ditto.
* gdbarch.c, gdbarch.sh (show_gdbarch_debug)
(_initialize_gdbarch): Ditto.
* frame.c (_initialize_frame, show_backtrace_past_main)
(show_backtrace_past_entry, show_backtrace_limit)
(show_frame_debug): Ditto.
* exec.c (_initialize_exec, show_write_files): Ditto.
* dwarf2read.c (_initialize_dwarf2_read)
(show_dwarf2_max_cache_age): Ditto.
* demangle.c (_initialize_demangler)
(show_demangling_style_names): Ditto.
* dcache.c (_initialize_dcache, show_dcache_enabled_p): Ditto.
* cp-valprint.c (show_static_field_print)
(_initialize_cp_valprint, show_vtblprint, show_objectprint): Ditto.
* corefile.c (_initialize_core, show_gnutarget_string): Ditto.
* cli/cli-logging.c (_initialize_cli_logging)
(show_logging_overwrite, show_logging_redirect)
(show_logging_filename): Ditto.
* cli/cli-cmds.c (show_info_verbose, show_history_expansion_p)
(init_cli_cmds, show_baud_rate, show_remote_debug)
(show_remote_timeout, show_max_user_call_depth): Ditto.
* charset.c (show_host_charset_name, show_target_charset_name)
(initialize_charset): Ditto.
* breakpoint.c (show_can_use_hw_watchpoints)
(show_pending_break_support, _initialize_breakpoint): Ditto.
2005-02-24 14:51:36 +01:00
|
|
|
static void
|
|
|
|
show_unwind_on_signal_p (struct ui_file *file, int from_tty,
|
|
|
|
struct cmd_list_element *c, const char *value)
|
|
|
|
{
|
2011-01-05 23:22:53 +01:00
|
|
|
fprintf_filtered (file,
|
|
|
|
_("Unwinding of stack if a signal is "
|
|
|
|
"received while in a call dummy is %s.\n"),
|
2005-02-24 Andrew Cagney <cagney@gnu.org>
Add show_VARIABLE functions, update add_setshow call.
* varobj.c (_initialize_varobj, show_varobjdebug): Add and update.
* valprint.c (_initialize_valprint, show_print_max)
(show_stop_print_at_null, show_repeat_count_threshold)
(show_prettyprint_structs, show_unionprint)
(show_prettyprint_arrays, show_addressprint, show_input_radix)
(show_output_radix): Ditto.
* valops.c (_initialize_valops, show_overload_resolution): Ditto.
* utils.c (initialize_utils, show_chars_per_line)
(show_lines_per_page, show_demangle, show_pagination_enabled)
(show_sevenbit_strings, show_asm_demangle): Ditto
* tui/tui-win.c (_initialize_tui_win, show_tui_border_kind)
(show_tui_border_mode, show_tui_active_border_mode): Ditto.
* top.c (init_main, show_new_async_prompt)
(show_async_command_editing_p, show_write_history_p)
(show_history_size, show_history_filename, show_caution)
(show_annotation_level, init_main): Ditto.
* target.c (initialize_targets, show_targetdebug)
(show_trust_readonly): Ditto.
* symfile.c (_initialize_symfile, show_symbol_reloading)
(show_ext_args, show_download_write_size)
(show_debug_file_directory): Ditto.
* source.c (_initialize_source, show_lines_to_list): Ditto.
* solib.c (_initialize_solib, show_auto_solib_add)
(show_solib_search_path): Ditto.
* p-valprint.c (_initialize_pascal_valprint)
(show_pascal_static_field_print): Ditto.
* printcmd.c (_initialize_printcmd, show_max_symbolic_offset)
(show_print_symbol_filename): Add and update.
* parse.c (_initialize_parse, show_expressiondebug): Dito.
* observer.c (_initialize_observer, show_observer_debug): Dito.
* maint.c (_initialize_maint_cmds, show_watchdog)
(show_maintenance_profile_p): Dito.
* linux-nat.c (_initialize_linux_nat, show_debug_linux_nat): Dito.
* infrun.c (_initialize_infrun, show_debug_infrun)
(show_stop_on_solib_events, show_follow_fork_mode_string)
(show_scheduler_mode, show_step_stop_if_no_debug): Ditto.
* infcall.c (_initialize_infcall, show_coerce_float_to_double_p)
(show_unwind_on_signal_p): Ditto.
* gdbtypes.c (build_gdbtypes, show_opaque_type_resolution)
(_initialize_gdbtypes, show_overload_debug): Ditto.
* gdb-events.c, gdb-events.sh (_initialize_gdb_events)
(show_gdb_events_debug): Ditto.
* gdbarch.c, gdbarch.sh (show_gdbarch_debug)
(_initialize_gdbarch): Ditto.
* frame.c (_initialize_frame, show_backtrace_past_main)
(show_backtrace_past_entry, show_backtrace_limit)
(show_frame_debug): Ditto.
* exec.c (_initialize_exec, show_write_files): Ditto.
* dwarf2read.c (_initialize_dwarf2_read)
(show_dwarf2_max_cache_age): Ditto.
* demangle.c (_initialize_demangler)
(show_demangling_style_names): Ditto.
* dcache.c (_initialize_dcache, show_dcache_enabled_p): Ditto.
* cp-valprint.c (show_static_field_print)
(_initialize_cp_valprint, show_vtblprint, show_objectprint): Ditto.
* corefile.c (_initialize_core, show_gnutarget_string): Ditto.
* cli/cli-logging.c (_initialize_cli_logging)
(show_logging_overwrite, show_logging_redirect)
(show_logging_filename): Ditto.
* cli/cli-cmds.c (show_info_verbose, show_history_expansion_p)
(init_cli_cmds, show_baud_rate, show_remote_debug)
(show_remote_timeout, show_max_user_call_depth): Ditto.
* charset.c (show_host_charset_name, show_target_charset_name)
(initialize_charset): Ditto.
* breakpoint.c (show_can_use_hw_watchpoints)
(show_pending_break_support, _initialize_breakpoint): Ditto.
2005-02-24 14:51:36 +01:00
|
|
|
value);
|
|
|
|
}
|
|
|
|
|
2009-06-15 14:11:37 +02:00
|
|
|
/* This boolean tells what gdb should do if a std::terminate call is
|
|
|
|
made while in a function called from gdb (call dummy).
|
|
|
|
As the confines of a single dummy stack prohibit out-of-frame
|
|
|
|
handlers from handling a raised exception, and as out-of-frame
|
|
|
|
handlers are common in C++, this can lead to no handler being found
|
|
|
|
by the unwinder, and a std::terminate call. This is a false positive.
|
|
|
|
If set, gdb unwinds the stack and restores the context to what it
|
|
|
|
was before the call.
|
|
|
|
|
|
|
|
The default is to unwind the frame if a std::terminate call is
|
|
|
|
made. */
|
|
|
|
|
|
|
|
static int unwind_on_terminating_exception_p = 1;
|
|
|
|
|
|
|
|
static void
|
|
|
|
show_unwind_on_terminating_exception_p (struct ui_file *file, int from_tty,
|
|
|
|
struct cmd_list_element *c,
|
|
|
|
const char *value)
|
|
|
|
|
|
|
|
{
|
2011-01-05 23:22:53 +01:00
|
|
|
fprintf_filtered (file,
|
|
|
|
_("Unwind stack if a C++ exception is "
|
|
|
|
"unhandled while in a call dummy is %s.\n"),
|
2009-06-15 14:11:37 +02:00
|
|
|
value);
|
|
|
|
}
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
|
|
|
/* Perform the standard coercions that are specified
|
2008-01-08 20:28:09 +01:00
|
|
|
for arguments to be passed to C or Ada functions.
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
|
|
|
If PARAM_TYPE is non-NULL, it is the expected parameter type.
|
2008-01-08 20:28:09 +01:00
|
|
|
IS_PROTOTYPED is non-zero if the function declaration is prototyped.
|
|
|
|
SP is the stack pointer were additional data can be pushed (updating
|
|
|
|
its value as needed). */
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
|
|
|
static struct value *
|
2008-09-11 16:25:04 +02:00
|
|
|
value_arg_coerce (struct gdbarch *gdbarch, struct value *arg,
|
|
|
|
struct type *param_type, int is_prototyped, CORE_ADDR *sp)
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
{
|
2008-09-11 16:25:04 +02:00
|
|
|
const struct builtin_type *builtin = builtin_type (gdbarch);
|
2004-11-12 Andrew Cagney <cagney@gnu.org>
* value.h (VALUE_TYPE, VALUE_NEXT, VALUE_OFFSET, VALUE_BITSIZE)
(VALUE_BITPOS): Delete.
(value_type, value_offset, value_bitsize, value_bitpos): Declare.
* value.c (value_type, value_offset, value_bitpos)
(value_bitsize): New functions. Update references.
* arm-tdep.c, gnu-v3-abi.c, hpacc-abi.c, gnu-v2-abi.c: Update.
* f-valprint.c, cp-valprint.c, c-valprint.c: Update.
* ada-valprint.c, typeprint.c, scm-valprint.c, scm-exp.c: Update.
* p-valprint.c, jv-valprint.c, jv-lang.c, varobj.c: Update.
* objc-lang.c, ada-lang.c, std-regs.c, stack.c: Update.
* infcall.c, linespec.c, printcmd.c, valarith.c: Update.
* valops.c, eval.c, findvar.c, breakpoint.c: Update.
* tracepoint.c, ax-gdb.c, mi/mi-main.c, cli/cli-dump.c:
* rs6000-tdep.c, ppc-sysv-tdep.c: Update.
2004-11-12 22:45:08 +01:00
|
|
|
struct type *arg_type = check_typedef (value_type (arg));
|
2003-09-14 Andrew Cagney <cagney@redhat.com>
* alpha-nat.c: Remove some occurances of "register".
* alpha-tdep.c, arm-tdep.c, blockframe.c, breakpoint.c: Ditto.
* buildsym.c, c-typeprint.c, c-valprint.c, coffread.c: Ditto.
* corefile.c, cp-support.c, cp-valprint.c, cris-tdep.c: Ditto.
* dbxread.c, dcache.c, dwarf2read.c, elfread.c: Ditto.
* environ.c, eval.c, event-top.c, f-typeprint.c: Ditto.
* f-valprint.c, findvar.c, frame.c, gdbtypes.c: Ditto.
* h8300-tdep.c, hppa-tdep.c, hppab-nat.c, hppah-nat.c: Ditto.
* hppam3-nat.c, hpread.c, ia64-aix-nat.c, ia64-linux-nat.c: Ditto.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Ditto.
* infttrace.c, irix5-nat.c, jv-typeprint.c: Ditto.
* jv-valprint.c, m68k-tdep.c, m68klinux-nat.c, main.c: Ditto.
* mdebugread.c, minsyms.c, mips-linux-tdep.c: Ditto.
* mips-nat.c, mips-tdep.c, mipsread.c, mipsv4-nat.c: Ditto.
* ns32k-tdep.c, objfiles.c, p-typeprint.c: Ditto.
* p-valprint.c, ppc-linux-nat.c, printcmd.c: Ditto.
* remote-mips.c, remote-vx.c, rs6000-nat.c: Ditto.
* rs6000-tdep.c, scm-exp.c, sh-tdep.c, sh64-tdep.c: Ditto.
* solib.c, somread.c, source.c, sparc-tdep.c: Ditto.
* stabsread.c, stack.c, standalone.c, symfile.c: Ditto.
* symmisc.c, symtab.c, top.c, tracepoint.c: Ditto.
* typeprint.c, utils.c, valarith.c, valops.c: Ditto.
* values.c, vax-tdep.c, xcoffread.c: Ditto.
2003-09-14 18:32:14 +02:00
|
|
|
struct type *type
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
= param_type ? check_typedef (param_type) : arg_type;
|
|
|
|
|
2008-01-08 20:28:09 +01:00
|
|
|
/* Perform any Ada-specific coercion first. */
|
|
|
|
if (current_language->la_language == language_ada)
|
2010-10-05 00:32:31 +02:00
|
|
|
arg = ada_convert_actual (arg, type);
|
2008-01-08 20:28:09 +01:00
|
|
|
|
2008-03-21 16:02:38 +01:00
|
|
|
/* Force the value to the target if we will need its address. At
|
|
|
|
this point, we could allocate arguments on the stack instead of
|
|
|
|
calling malloc if we knew that their addresses would not be
|
|
|
|
saved by the called function. */
|
|
|
|
arg = value_coerce_to_target (arg);
|
|
|
|
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
switch (TYPE_CODE (type))
|
|
|
|
{
|
|
|
|
case TYPE_CODE_REF:
|
Convert lvalue reference type check to general reference type check
In almost all contexts (except for overload resolution rules and expression
semantics), lvalue and rvalue references are equivalent. That means that in all
but these cases we can replace a TYPE_CODE_REF check to a TYPE_IS_REFERENCE
check and, for switch statements, add a case label for a rvalue reference type
next to a case label for an lvalue reference type. This patch does exactly
that.
gdb/ChangeLog
PR gdb/14441
* aarch64-tdep.c (aarch64_type_align)
(aarch64_extract_return_value, aarch64_store_return_value): Change
lvalue reference type checks to general reference type checks.
* amd64-tdep.c (amd64_classify): Likewise.
* amd64-windows-tdep.c (amd64_windows_passed_by_integer_register):
Likewise.
* arm-tdep.c (arm_type_align, arm_extract_return_value)
(arm_store_return_value): Likewise.
* ax-gdb.c (gen_fetch, gen_cast): Likewise.
* c-typeprint.c (c_print_type): Likewise.
* c-varobj.c (adjust_value_for_child_access, c_value_of_variable)
(cplus_number_of_children, cplus_describe_child): Likewise.
* compile/compile-c-symbols.c (generate_vla_size): Likewise.
* completer.c (expression_completer): Likewise.
* cp-support.c (make_symbol_overload_list_adl_namespace):
Likewise.
* darwin-nat-info.c (info_mach_region_command): Likewise.
* dwarf2loc.c (entry_data_value_coerce_ref)
(value_of_dwarf_reg_entry): Likewise.
* eval.c (ptrmath_type_p, evaluate_subexp_standard)
(evaluate_subexp_for_address, evaluate_subexp_for_sizeof):
Likewise.
* findvar.c (extract_typed_address, store_typed_address):
Likewise.
* gdbtypes.c (rank_one_type): Likewise.
* hppa-tdep.c (hppa64_integral_or_pointer_p): Likewise.
* infcall.c (value_arg_coerce): Likewise.
* language.c (pointer_type): Likewise.
* m32c-tdep.c (m32c_reg_arg_type, m32c_m16c_address_to_pointer):
Likewise.
* m88k-tdep.c (m88k_integral_or_pointer_p): Likewise.
* mn10300-tdep.c (mn10300_type_align): Likewise.
* msp430-tdep.c (msp430_push_dummy_call): Likewise.
* ppc-sysv-tdep.c (do_ppc_sysv_return_value)
(ppc64_sysv_abi_push_param, ppc64_sysv_abi_return_value):
Likewise.
* printcmd.c (print_formatted, x_command): Likewise.
* python/py-type.c (typy_get_composite, typy_template_argument):
Likewise.
* python/py-value.c (valpy_referenced_value)
(valpy_get_dynamic_type, value_has_field): Likewise.
* s390-linux-tdep.c (s390_function_arg_integer): Likewise.
* sparc-tdep.c (sparc_integral_or_pointer_p): Likewise.
* sparc64-tdep.c (sparc64_integral_or_pointer_p): Likewise.
* spu-tdep.c (spu_scalar_value_p): Likewise.
* symtab.c (lookup_symbol_aux): Likewise.
* typeprint.c (whatis_exp, print_type_scalar): Likewise.
* valarith.c (binop_types_user_defined_p, unop_user_defined_p):
Likewise.
* valops.c (value_cast_pointers, value_cast)
(value_reinterpret_cast, value_dynamic_cast, value_addr, typecmp)
(value_struct_elt, value_struct_elt_bitpos)
(value_find_oload_method_list, find_overload_match)
(value_rtti_indirect_type): Likewise.
* valprint.c (val_print_scalar_type_p, generic_val_print):
Likewise.
* value.c (value_actual_type, value_as_address, unpack_long)
(pack_long, pack_unsigned_long, coerce_ref_if_computed)
(coerce_ref): Likewise.
* varobj.c (varobj_get_value_type): Likewise.
2017-03-20 21:47:54 +01:00
|
|
|
case TYPE_CODE_RVALUE_REF:
|
2006-07-13 06:31:42 +02:00
|
|
|
{
|
|
|
|
struct value *new_value;
|
|
|
|
|
Convert lvalue reference type check to general reference type check
In almost all contexts (except for overload resolution rules and expression
semantics), lvalue and rvalue references are equivalent. That means that in all
but these cases we can replace a TYPE_CODE_REF check to a TYPE_IS_REFERENCE
check and, for switch statements, add a case label for a rvalue reference type
next to a case label for an lvalue reference type. This patch does exactly
that.
gdb/ChangeLog
PR gdb/14441
* aarch64-tdep.c (aarch64_type_align)
(aarch64_extract_return_value, aarch64_store_return_value): Change
lvalue reference type checks to general reference type checks.
* amd64-tdep.c (amd64_classify): Likewise.
* amd64-windows-tdep.c (amd64_windows_passed_by_integer_register):
Likewise.
* arm-tdep.c (arm_type_align, arm_extract_return_value)
(arm_store_return_value): Likewise.
* ax-gdb.c (gen_fetch, gen_cast): Likewise.
* c-typeprint.c (c_print_type): Likewise.
* c-varobj.c (adjust_value_for_child_access, c_value_of_variable)
(cplus_number_of_children, cplus_describe_child): Likewise.
* compile/compile-c-symbols.c (generate_vla_size): Likewise.
* completer.c (expression_completer): Likewise.
* cp-support.c (make_symbol_overload_list_adl_namespace):
Likewise.
* darwin-nat-info.c (info_mach_region_command): Likewise.
* dwarf2loc.c (entry_data_value_coerce_ref)
(value_of_dwarf_reg_entry): Likewise.
* eval.c (ptrmath_type_p, evaluate_subexp_standard)
(evaluate_subexp_for_address, evaluate_subexp_for_sizeof):
Likewise.
* findvar.c (extract_typed_address, store_typed_address):
Likewise.
* gdbtypes.c (rank_one_type): Likewise.
* hppa-tdep.c (hppa64_integral_or_pointer_p): Likewise.
* infcall.c (value_arg_coerce): Likewise.
* language.c (pointer_type): Likewise.
* m32c-tdep.c (m32c_reg_arg_type, m32c_m16c_address_to_pointer):
Likewise.
* m88k-tdep.c (m88k_integral_or_pointer_p): Likewise.
* mn10300-tdep.c (mn10300_type_align): Likewise.
* msp430-tdep.c (msp430_push_dummy_call): Likewise.
* ppc-sysv-tdep.c (do_ppc_sysv_return_value)
(ppc64_sysv_abi_push_param, ppc64_sysv_abi_return_value):
Likewise.
* printcmd.c (print_formatted, x_command): Likewise.
* python/py-type.c (typy_get_composite, typy_template_argument):
Likewise.
* python/py-value.c (valpy_referenced_value)
(valpy_get_dynamic_type, value_has_field): Likewise.
* s390-linux-tdep.c (s390_function_arg_integer): Likewise.
* sparc-tdep.c (sparc_integral_or_pointer_p): Likewise.
* sparc64-tdep.c (sparc64_integral_or_pointer_p): Likewise.
* spu-tdep.c (spu_scalar_value_p): Likewise.
* symtab.c (lookup_symbol_aux): Likewise.
* typeprint.c (whatis_exp, print_type_scalar): Likewise.
* valarith.c (binop_types_user_defined_p, unop_user_defined_p):
Likewise.
* valops.c (value_cast_pointers, value_cast)
(value_reinterpret_cast, value_dynamic_cast, value_addr, typecmp)
(value_struct_elt, value_struct_elt_bitpos)
(value_find_oload_method_list, find_overload_match)
(value_rtti_indirect_type): Likewise.
* valprint.c (val_print_scalar_type_p, generic_val_print):
Likewise.
* value.c (value_actual_type, value_as_address, unpack_long)
(pack_long, pack_unsigned_long, coerce_ref_if_computed)
(coerce_ref): Likewise.
* varobj.c (varobj_get_value_type): Likewise.
2017-03-20 21:47:54 +01:00
|
|
|
if (TYPE_IS_REFERENCE (arg_type))
|
2012-05-21 21:47:54 +02:00
|
|
|
return value_cast_pointers (type, arg, 0);
|
2006-07-13 06:31:42 +02:00
|
|
|
|
|
|
|
/* Cast the value to the reference's target type, and then
|
|
|
|
convert it back to a reference. This will issue an error
|
|
|
|
if the value was not previously in memory - in some cases
|
|
|
|
we should clearly be allowing this, but how? */
|
|
|
|
new_value = value_cast (TYPE_TARGET_TYPE (type), arg);
|
2017-03-20 21:47:41 +01:00
|
|
|
new_value = value_ref (new_value, TYPE_CODE (type));
|
2006-07-13 06:31:42 +02:00
|
|
|
return new_value;
|
|
|
|
}
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
case TYPE_CODE_INT:
|
|
|
|
case TYPE_CODE_CHAR:
|
|
|
|
case TYPE_CODE_BOOL:
|
|
|
|
case TYPE_CODE_ENUM:
|
|
|
|
/* If we don't have a prototype, coerce to integer type if necessary. */
|
|
|
|
if (!is_prototyped)
|
|
|
|
{
|
2008-09-11 16:25:04 +02:00
|
|
|
if (TYPE_LENGTH (type) < TYPE_LENGTH (builtin->builtin_int))
|
|
|
|
type = builtin->builtin_int;
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
}
|
|
|
|
/* Currently all target ABIs require at least the width of an integer
|
|
|
|
type for an argument. We may have to conditionalize the following
|
|
|
|
type coercion for future targets. */
|
2008-09-11 16:25:04 +02:00
|
|
|
if (TYPE_LENGTH (type) < TYPE_LENGTH (builtin->builtin_int))
|
|
|
|
type = builtin->builtin_int;
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
break;
|
|
|
|
case TYPE_CODE_FLT:
|
|
|
|
if (!is_prototyped && coerce_float_to_double_p)
|
|
|
|
{
|
2008-09-11 16:25:04 +02:00
|
|
|
if (TYPE_LENGTH (type) < TYPE_LENGTH (builtin->builtin_double))
|
|
|
|
type = builtin->builtin_double;
|
|
|
|
else if (TYPE_LENGTH (type) > TYPE_LENGTH (builtin->builtin_double))
|
|
|
|
type = builtin->builtin_long_double;
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
}
|
|
|
|
break;
|
|
|
|
case TYPE_CODE_FUNC:
|
|
|
|
type = lookup_pointer_type (type);
|
|
|
|
break;
|
|
|
|
case TYPE_CODE_ARRAY:
|
|
|
|
/* Arrays are coerced to pointers to their first element, unless
|
|
|
|
they are vectors, in which case we want to leave them alone,
|
|
|
|
because they are passed by value. */
|
|
|
|
if (current_language->c_style_arrays)
|
|
|
|
if (!TYPE_VECTOR (type))
|
|
|
|
type = lookup_pointer_type (TYPE_TARGET_TYPE (type));
|
|
|
|
break;
|
|
|
|
case TYPE_CODE_UNDEF:
|
|
|
|
case TYPE_CODE_PTR:
|
|
|
|
case TYPE_CODE_STRUCT:
|
|
|
|
case TYPE_CODE_UNION:
|
|
|
|
case TYPE_CODE_VOID:
|
|
|
|
case TYPE_CODE_SET:
|
|
|
|
case TYPE_CODE_RANGE:
|
|
|
|
case TYPE_CODE_STRING:
|
|
|
|
case TYPE_CODE_ERROR:
|
* 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
|
|
|
case TYPE_CODE_MEMBERPTR:
|
|
|
|
case TYPE_CODE_METHODPTR:
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
case TYPE_CODE_METHOD:
|
|
|
|
case TYPE_CODE_COMPLEX:
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
return value_cast (type, arg);
|
|
|
|
}
|
|
|
|
|
gdb/
STT_GNU_IFUNC reader implementation.
* elfread.c: Include gdbtypes.h, value.h and infcall.h.
(SYMBOL_GOT_PLT_SUFFIX, elf_rel_plt_read)
(elf_objfile_gnu_ifunc_cache_data, struct elf_gnu_ifunc_cache)
(elf_gnu_ifunc_cache_hash, elf_gnu_ifunc_cache_eq)
(elf_gnu_ifunc_record_cache, elf_gnu_ifunc_resolve_by_cache)
(elf_gnu_ifunc_resolve_by_got, elf_gnu_ifunc_resolve_name)
(elf_gnu_ifunc_resolve_addr): New.
(elf_symfile_read): Call elf_rel_plt_read.
(elf_gnu_ifunc_fns): New.
(_initialize_elfread): Initialize elf_objfile_gnu_ifunc_cache_data.
Install elf_gnu_ifunc_fns.
* infcall.c (find_function_return_type): New function.
(find_function_addr): Resolve TYPE_GNU_IFUNC functions, if possible.
* minsyms.c (stub_gnu_ifunc_resolve_addr)
(stub_gnu_ifunc_resolve_name): New functions.
(stub_gnu_ifunc_fns, gnu_ifunc_fns_p): New variables.
* symtab.h (struct gnu_ifunc_fns, gnu_ifunc_resolve_addr)
(gnu_ifunc_resolve_name, gnu_ifunc_fns_p): New.
2011-03-28 22:26:24 +02:00
|
|
|
/* Return the return type of a function with its first instruction exactly at
|
|
|
|
the PC address. Return NULL otherwise. */
|
|
|
|
|
|
|
|
static struct type *
|
|
|
|
find_function_return_type (CORE_ADDR pc)
|
|
|
|
{
|
|
|
|
struct symbol *sym = find_pc_function (pc);
|
|
|
|
|
|
|
|
if (sym != NULL && BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) == pc
|
|
|
|
&& SYMBOL_TYPE (sym) != NULL)
|
|
|
|
return TYPE_TARGET_TYPE (SYMBOL_TYPE (sym));
|
|
|
|
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
/* Determine a function's address and its return type from its value.
|
|
|
|
Calls error() if the function is not valid for calling. */
|
|
|
|
|
2003-04-30 03:27:53 +02:00
|
|
|
CORE_ADDR
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
find_function_addr (struct value *function, struct type **retval_type)
|
|
|
|
{
|
2004-11-12 Andrew Cagney <cagney@gnu.org>
* value.h (VALUE_TYPE, VALUE_NEXT, VALUE_OFFSET, VALUE_BITSIZE)
(VALUE_BITPOS): Delete.
(value_type, value_offset, value_bitsize, value_bitpos): Declare.
* value.c (value_type, value_offset, value_bitpos)
(value_bitsize): New functions. Update references.
* arm-tdep.c, gnu-v3-abi.c, hpacc-abi.c, gnu-v2-abi.c: Update.
* f-valprint.c, cp-valprint.c, c-valprint.c: Update.
* ada-valprint.c, typeprint.c, scm-valprint.c, scm-exp.c: Update.
* p-valprint.c, jv-valprint.c, jv-lang.c, varobj.c: Update.
* objc-lang.c, ada-lang.c, std-regs.c, stack.c: Update.
* infcall.c, linespec.c, printcmd.c, valarith.c: Update.
* valops.c, eval.c, findvar.c, breakpoint.c: Update.
* tracepoint.c, ax-gdb.c, mi/mi-main.c, cli/cli-dump.c:
* rs6000-tdep.c, ppc-sysv-tdep.c: Update.
2004-11-12 22:45:08 +01:00
|
|
|
struct type *ftype = check_typedef (value_type (function));
|
* gdbtypes.c (make_pointer_type, make_reference_type,
smash_to_memberptr_type, lookup_array_range_type, check_stub_method):
Use type architecture instead of current_gdbarch.
* gdbtypes.h (address_space_name_to_int, address_space_int_to_name):
Add GDBARCH paramter.
* gdbtypes.c (address_space_name_to_int, address_space_int_to_name):
Add GDBARCH parameter. Use it instead of current_gdbarch.
* c-typeprint.c (c_type_print_modifier): Update call.
* parse.c (push_type_address_space): Likewise.
* findvar.c (extract_typed_address, store_typed_address): Use type
architecture instead of current_gdbarch.
* value.c (value_as_address, unpack_field_as_long): Use type architecture
instead of current_gdbarch.
* doublest.c (floatformat_from_length): Add GDBARCH argument. Use it
instead of current_gdbarch.
(floatformat_from_type): Pass type architecture.
* infcall.c (find_function_addr): Use type architecture instead
of current_gdbarch.
* valarith.c (value_bitstring_subscript, value_x_binop, value_neg,
value_bit_index): Use type architecture instead of current_gdbarch.
* valops.c (value_cast, value_slice): Likewise.
* value.h (modify_field): Add TYPE argument.
* value.c (modify_field): Add TYPE argument. Use type architecture
instead of current_gdbarch.
(set_internalvar_component): Likewise.
* eval.c (evaluate_struct_tuple): Update call.
* valops.c (value_assign): Likewise.
* ada-lang.c (modify_general_field): Likewise. Add TYPE argument.
(make_array_descriptor): Update calls.
(move_bits): Add BITS_BIG_ENDIAN_P argument. Use it instead of
current_gdbarch.
(ada_value_assign, value_assign_to_component): Update calls.
(decode_packed_array, ada_value_primitive_packed_val, ada_value_assign,
value_assign_to_component): Use type arch instead of current_gdbarch.
* printcmd.c (float_type_from_length): Remove GDBARCH argument,
use type architecture instead.
(print_scalar_formatted, printf_command): Update calls. Use type
architecture instead of current_gdbarch.
* valprint.c (val_print_type_code_int): Use type architecture
instead of current_gdbarch.
* varobj.c (value_get_print_value): Likewise.
* python/python-prettyprint.c (print_string_repr): Add GDBARCH
argument. Use it instead of current_gdbarch.
(apply_val_pretty_printer): Update call.
* ada-valprint.c (ada_val_print_1): Use type architecture instead
of current_gdbarch.
* c-valprint.c (print_function_pointer_address): Add GDBARCH argument.
Use it instead of current_gdbarch.
(c_val_print): Update calls passing type architecture.
* f-valprint.c (f_val_print): Use type architecture instead of
current_gdbarch.
* jv-valprint (java_value_print): Likewise.
* m2-valprint.c (print_function_pointer_address): Add GDBARCH argument.
Use it instead of current_gdbarch.
(print_unpacked_pointer): Update calls passing type architecture.
* scm-valprint.c (scm_scmval_print): Use type architecture instead of
current_gdbarch.
* gnu-v3-abi.c (get_class_arch): Remove.
(gnuv3_rtti_type): Use get_type_arch instead of get_class_arch. Remove
special-case check for Java classes.
(gnuv3_virtual_fn_field, gnuv3_baseclass_offset, gnuv3_print_method_ptr,
gnuv3_method_ptr_size, gnuv3_make_method_ptr, gnuv3_method_ptr_to_value):
Use get_type_arch instead of get_class_arch.
2009-07-02 14:57:14 +02:00
|
|
|
struct gdbarch *gdbarch = get_type_arch (ftype);
|
2008-09-11 16:25:04 +02:00
|
|
|
struct type *value_type = NULL;
|
2011-03-29 18:21:24 +02:00
|
|
|
/* Initialize it just to avoid a GCC false warning. */
|
|
|
|
CORE_ADDR funaddr = 0;
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
|
|
|
/* If it's a member function, just look at the function
|
|
|
|
part of it. */
|
|
|
|
|
|
|
|
/* Determine address to call. */
|
2011-03-28 22:24:05 +02:00
|
|
|
if (TYPE_CODE (ftype) == TYPE_CODE_FUNC
|
|
|
|
|| TYPE_CODE (ftype) == TYPE_CODE_METHOD)
|
|
|
|
funaddr = value_address (function);
|
|
|
|
else if (TYPE_CODE (ftype) == TYPE_CODE_PTR)
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
{
|
|
|
|
funaddr = value_as_address (function);
|
|
|
|
ftype = check_typedef (TYPE_TARGET_TYPE (ftype));
|
|
|
|
if (TYPE_CODE (ftype) == TYPE_CODE_FUNC
|
|
|
|
|| TYPE_CODE (ftype) == TYPE_CODE_METHOD)
|
2011-03-28 22:24:05 +02:00
|
|
|
funaddr = gdbarch_convert_from_func_ptr_addr (gdbarch, funaddr,
|
|
|
|
¤t_target);
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
}
|
2011-03-28 22:24:05 +02:00
|
|
|
if (TYPE_CODE (ftype) == TYPE_CODE_FUNC
|
|
|
|
|| TYPE_CODE (ftype) == TYPE_CODE_METHOD)
|
gdb/
STT_GNU_IFUNC reader implementation.
* elfread.c: Include gdbtypes.h, value.h and infcall.h.
(SYMBOL_GOT_PLT_SUFFIX, elf_rel_plt_read)
(elf_objfile_gnu_ifunc_cache_data, struct elf_gnu_ifunc_cache)
(elf_gnu_ifunc_cache_hash, elf_gnu_ifunc_cache_eq)
(elf_gnu_ifunc_record_cache, elf_gnu_ifunc_resolve_by_cache)
(elf_gnu_ifunc_resolve_by_got, elf_gnu_ifunc_resolve_name)
(elf_gnu_ifunc_resolve_addr): New.
(elf_symfile_read): Call elf_rel_plt_read.
(elf_gnu_ifunc_fns): New.
(_initialize_elfread): Initialize elf_objfile_gnu_ifunc_cache_data.
Install elf_gnu_ifunc_fns.
* infcall.c (find_function_return_type): New function.
(find_function_addr): Resolve TYPE_GNU_IFUNC functions, if possible.
* minsyms.c (stub_gnu_ifunc_resolve_addr)
(stub_gnu_ifunc_resolve_name): New functions.
(stub_gnu_ifunc_fns, gnu_ifunc_fns_p): New variables.
* symtab.h (struct gnu_ifunc_fns, gnu_ifunc_resolve_addr)
(gnu_ifunc_resolve_name, gnu_ifunc_fns_p): New.
2011-03-28 22:26:24 +02:00
|
|
|
{
|
|
|
|
value_type = TYPE_TARGET_TYPE (ftype);
|
|
|
|
|
|
|
|
if (TYPE_GNU_IFUNC (ftype))
|
|
|
|
{
|
|
|
|
funaddr = gnu_ifunc_resolve_addr (gdbarch, funaddr);
|
|
|
|
|
|
|
|
/* Skip querying the function symbol if no RETVAL_TYPE has been
|
|
|
|
asked for. */
|
|
|
|
if (retval_type)
|
|
|
|
value_type = find_function_return_type (funaddr);
|
|
|
|
}
|
|
|
|
}
|
2011-03-28 22:24:05 +02:00
|
|
|
else if (TYPE_CODE (ftype) == TYPE_CODE_INT)
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
{
|
|
|
|
/* Handle the case of functions lacking debugging info.
|
2011-01-09 04:08:57 +01:00
|
|
|
Their values are characters since their addresses are char. */
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
if (TYPE_LENGTH (ftype) == 1)
|
|
|
|
funaddr = value_as_address (value_addr (function));
|
|
|
|
else
|
2007-07-03 17:58:42 +02:00
|
|
|
{
|
|
|
|
/* Handle function descriptors lacking debug info. */
|
|
|
|
int found_descriptor = 0;
|
2010-05-14 23:25:51 +02:00
|
|
|
|
2009-05-02 11:41:52 +02:00
|
|
|
funaddr = 0; /* pacify "gcc -Werror" */
|
2007-07-03 17:58:42 +02:00
|
|
|
if (VALUE_LVAL (function) == lval_memory)
|
|
|
|
{
|
|
|
|
CORE_ADDR nfunaddr;
|
2010-05-14 23:25:51 +02:00
|
|
|
|
2007-07-03 17:58:42 +02:00
|
|
|
funaddr = value_as_address (value_addr (function));
|
|
|
|
nfunaddr = funaddr;
|
* gdbtypes.c (make_pointer_type, make_reference_type,
smash_to_memberptr_type, lookup_array_range_type, check_stub_method):
Use type architecture instead of current_gdbarch.
* gdbtypes.h (address_space_name_to_int, address_space_int_to_name):
Add GDBARCH paramter.
* gdbtypes.c (address_space_name_to_int, address_space_int_to_name):
Add GDBARCH parameter. Use it instead of current_gdbarch.
* c-typeprint.c (c_type_print_modifier): Update call.
* parse.c (push_type_address_space): Likewise.
* findvar.c (extract_typed_address, store_typed_address): Use type
architecture instead of current_gdbarch.
* value.c (value_as_address, unpack_field_as_long): Use type architecture
instead of current_gdbarch.
* doublest.c (floatformat_from_length): Add GDBARCH argument. Use it
instead of current_gdbarch.
(floatformat_from_type): Pass type architecture.
* infcall.c (find_function_addr): Use type architecture instead
of current_gdbarch.
* valarith.c (value_bitstring_subscript, value_x_binop, value_neg,
value_bit_index): Use type architecture instead of current_gdbarch.
* valops.c (value_cast, value_slice): Likewise.
* value.h (modify_field): Add TYPE argument.
* value.c (modify_field): Add TYPE argument. Use type architecture
instead of current_gdbarch.
(set_internalvar_component): Likewise.
* eval.c (evaluate_struct_tuple): Update call.
* valops.c (value_assign): Likewise.
* ada-lang.c (modify_general_field): Likewise. Add TYPE argument.
(make_array_descriptor): Update calls.
(move_bits): Add BITS_BIG_ENDIAN_P argument. Use it instead of
current_gdbarch.
(ada_value_assign, value_assign_to_component): Update calls.
(decode_packed_array, ada_value_primitive_packed_val, ada_value_assign,
value_assign_to_component): Use type arch instead of current_gdbarch.
* printcmd.c (float_type_from_length): Remove GDBARCH argument,
use type architecture instead.
(print_scalar_formatted, printf_command): Update calls. Use type
architecture instead of current_gdbarch.
* valprint.c (val_print_type_code_int): Use type architecture
instead of current_gdbarch.
* varobj.c (value_get_print_value): Likewise.
* python/python-prettyprint.c (print_string_repr): Add GDBARCH
argument. Use it instead of current_gdbarch.
(apply_val_pretty_printer): Update call.
* ada-valprint.c (ada_val_print_1): Use type architecture instead
of current_gdbarch.
* c-valprint.c (print_function_pointer_address): Add GDBARCH argument.
Use it instead of current_gdbarch.
(c_val_print): Update calls passing type architecture.
* f-valprint.c (f_val_print): Use type architecture instead of
current_gdbarch.
* jv-valprint (java_value_print): Likewise.
* m2-valprint.c (print_function_pointer_address): Add GDBARCH argument.
Use it instead of current_gdbarch.
(print_unpacked_pointer): Update calls passing type architecture.
* scm-valprint.c (scm_scmval_print): Use type architecture instead of
current_gdbarch.
* gnu-v3-abi.c (get_class_arch): Remove.
(gnuv3_rtti_type): Use get_type_arch instead of get_class_arch. Remove
special-case check for Java classes.
(gnuv3_virtual_fn_field, gnuv3_baseclass_offset, gnuv3_print_method_ptr,
gnuv3_method_ptr_size, gnuv3_make_method_ptr, gnuv3_method_ptr_to_value):
Use get_type_arch instead of get_class_arch.
2009-07-02 14:57:14 +02:00
|
|
|
funaddr = gdbarch_convert_from_func_ptr_addr (gdbarch, funaddr,
|
2007-07-03 17:58:42 +02:00
|
|
|
¤t_target);
|
|
|
|
if (funaddr != nfunaddr)
|
|
|
|
found_descriptor = 1;
|
|
|
|
}
|
|
|
|
if (!found_descriptor)
|
|
|
|
/* Handle integer used as address of a function. */
|
|
|
|
funaddr = (CORE_ADDR) value_as_long (function);
|
|
|
|
}
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
}
|
|
|
|
else
|
2005-02-10 Andrew Cagney <cagney@gnu.org>
Mark up all error and warning messages.
* ada-lang.c, amd64-tdep.c, arch-utils.c, breakpoint.c: Update.
* bsd-kvm.c, bsd-uthread.c, coff-solib.h, coffread.c: Update.
* core-aout.c, core-regset.c, corefile.c, corelow.c: Update.
* cp-abi.c, cp-support.c, cp-valprint.c, cris-tdep.c: Update.
* dbxread.c, demangle.c, doublest.c, dsrec.c: Update.
* dve3900-rom.c, dwarf2expr.c, dwarf2loc.c: Update.
* dwarf2read.c, dwarfread.c, elfread.c, eval.c: Update.
* event-top.c, exec.c, expprint.c, f-lang.c: Update.
* f-typeprint.c, f-valprint.c, fbsd-nat.c, findvar.c: Update.
* frame.c, frv-linux-tdep.c, gcore.c, gdbtypes.c: Update.
* gnu-nat.c, gnu-v2-abi.c, gnu-v3-abi.c, go32-nat.c: Update.
* hpacc-abi.c, hppa-hpux-nat.c, hppa-hpux-tdep.c: Update.
* hppa-linux-nat.c, hppa-linux-tdep.c, hppa-tdep.c: Update.
* hpread.c, hpux-thread.c, i386-linux-nat.c: Update.
* i386-linux-tdep.c, i386-tdep.c, i386bsd-nat.c: Update.
* i386gnu-nat.c, i387-tdep.c, ia64-linux-nat.c: Update.
* ia64-tdep.c, inf-child.c, inf-ptrace.c, inf-ttrace.c: Update.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Update.
* inftarg.c, interps.c, irix5-nat.c, jv-lang.c: Update.
* kod-cisco.c, kod.c, language.c, libunwind-frame.c: Update.
* linespec.c, linux-nat.c, linux-thread-db.c, m2-lang.c: Update.
* m32r-rom.c, m68hc11-tdep.c, m68k-tdep.c: Update.
* m68klinux-nat.c, macrocmd.c, macroexp.c, main.c: Update.
* maint.c, mdebugread.c, mem-break.c, memattr.c: Update.
* mips-linux-tdep.c, mips-tdep.c, mipsread.c, monitor.c: Update.
* nlmread.c, nto-procfs.c, objc-lang.c, objfiles.c: Update.
* observer.c, ocd.c, p-lang.c, p-typeprint.c: Update.
* p-valprint.c, pa64solib.c, parse.c, ppc-linux-tdep.c: Update.
* ppcnbsd-tdep.c, printcmd.c, procfs.c, remote-e7000.c: Update.
* remote-fileio.c, remote-m32r-sdi.c, remote-rdi.c: Update.
* remote-rdp.c, remote-sim.c, remote-st.c: Update.
* remote-utils.c, remote-utils.h, remote.c: Update.
* rom68k-rom.c, rs6000-nat.c, s390-tdep.c, scm-lang.c: Update.
* ser-e7kpc.c, ser-tcp.c, ser-unix.c, sh-tdep.c: Update.
* sh3-rom.c, shnbsd-tdep.c, sol-thread.c, solib-aix5.c: Update.
* solib-frv.c, solib-irix.c, solib-osf.c, solib-pa64.c: Update.
* solib-som.c, solib-sunos.c, solib-svr4.c, solib.c: Update.
* somread.c, somsolib.c, source.c, stabsread.c: Update.
* stack.c, std-regs.c, symfile-mem.c, symfile.c: Update.
* symmisc.c, symtab.c, target.c, thread.c, top.c: Update.
* tracepoint.c, trad-frame.c, typeprint.c, utils.c: Update.
* uw-thread.c, valarith.c, valops.c, valprint.c: Update.
* value.c, varobj.c, version.in, win32-nat.c, wince.c: Update.
* xcoffread.c, xcoffsolib.c, cli/cli-cmds.c: Update.
* cli/cli-decode.c, cli/cli-dump.c, cli/cli-logging.c: Update.
* cli/cli-script.c, cli/cli-setshow.c, mi/mi-cmd-break.c: Update.
* mi/mi-cmd-disas.c, mi/mi-cmd-env.c, mi/mi-cmd-file.c: Update.
* mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-getopt.c: Update.
* mi/mi-symbol-cmds.c, tui/tui-layout.c, tui/tui-stack.c: Update.
* tui/tui-win.c: Update.
2005-02-11 05:06:14 +01:00
|
|
|
error (_("Invalid data type for function to be called."));
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2004-06-07 04:02:55 +02:00
|
|
|
if (retval_type != NULL)
|
|
|
|
*retval_type = value_type;
|
* gdbtypes.c (make_pointer_type, make_reference_type,
smash_to_memberptr_type, lookup_array_range_type, check_stub_method):
Use type architecture instead of current_gdbarch.
* gdbtypes.h (address_space_name_to_int, address_space_int_to_name):
Add GDBARCH paramter.
* gdbtypes.c (address_space_name_to_int, address_space_int_to_name):
Add GDBARCH parameter. Use it instead of current_gdbarch.
* c-typeprint.c (c_type_print_modifier): Update call.
* parse.c (push_type_address_space): Likewise.
* findvar.c (extract_typed_address, store_typed_address): Use type
architecture instead of current_gdbarch.
* value.c (value_as_address, unpack_field_as_long): Use type architecture
instead of current_gdbarch.
* doublest.c (floatformat_from_length): Add GDBARCH argument. Use it
instead of current_gdbarch.
(floatformat_from_type): Pass type architecture.
* infcall.c (find_function_addr): Use type architecture instead
of current_gdbarch.
* valarith.c (value_bitstring_subscript, value_x_binop, value_neg,
value_bit_index): Use type architecture instead of current_gdbarch.
* valops.c (value_cast, value_slice): Likewise.
* value.h (modify_field): Add TYPE argument.
* value.c (modify_field): Add TYPE argument. Use type architecture
instead of current_gdbarch.
(set_internalvar_component): Likewise.
* eval.c (evaluate_struct_tuple): Update call.
* valops.c (value_assign): Likewise.
* ada-lang.c (modify_general_field): Likewise. Add TYPE argument.
(make_array_descriptor): Update calls.
(move_bits): Add BITS_BIG_ENDIAN_P argument. Use it instead of
current_gdbarch.
(ada_value_assign, value_assign_to_component): Update calls.
(decode_packed_array, ada_value_primitive_packed_val, ada_value_assign,
value_assign_to_component): Use type arch instead of current_gdbarch.
* printcmd.c (float_type_from_length): Remove GDBARCH argument,
use type architecture instead.
(print_scalar_formatted, printf_command): Update calls. Use type
architecture instead of current_gdbarch.
* valprint.c (val_print_type_code_int): Use type architecture
instead of current_gdbarch.
* varobj.c (value_get_print_value): Likewise.
* python/python-prettyprint.c (print_string_repr): Add GDBARCH
argument. Use it instead of current_gdbarch.
(apply_val_pretty_printer): Update call.
* ada-valprint.c (ada_val_print_1): Use type architecture instead
of current_gdbarch.
* c-valprint.c (print_function_pointer_address): Add GDBARCH argument.
Use it instead of current_gdbarch.
(c_val_print): Update calls passing type architecture.
* f-valprint.c (f_val_print): Use type architecture instead of
current_gdbarch.
* jv-valprint (java_value_print): Likewise.
* m2-valprint.c (print_function_pointer_address): Add GDBARCH argument.
Use it instead of current_gdbarch.
(print_unpacked_pointer): Update calls passing type architecture.
* scm-valprint.c (scm_scmval_print): Use type architecture instead of
current_gdbarch.
* gnu-v3-abi.c (get_class_arch): Remove.
(gnuv3_rtti_type): Use get_type_arch instead of get_class_arch. Remove
special-case check for Java classes.
(gnuv3_virtual_fn_field, gnuv3_baseclass_offset, gnuv3_print_method_ptr,
gnuv3_method_ptr_size, gnuv3_make_method_ptr, gnuv3_method_ptr_to_value):
Use get_type_arch instead of get_class_arch.
2009-07-02 14:57:14 +02:00
|
|
|
return funaddr + gdbarch_deprecated_function_start_offset (gdbarch);
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
}
|
|
|
|
|
2004-05-08 21:38:34 +02:00
|
|
|
/* For CALL_DUMMY_ON_STACK, push a breakpoint sequence that the called
|
|
|
|
function returns to. */
|
2003-05-03 21:39:23 +02:00
|
|
|
|
|
|
|
static CORE_ADDR
|
|
|
|
push_dummy_code (struct gdbarch *gdbarch,
|
2007-10-12 17:34:45 +02:00
|
|
|
CORE_ADDR sp, CORE_ADDR funaddr,
|
2003-05-03 21:39:23 +02:00
|
|
|
struct value **args, int nargs,
|
|
|
|
struct type *value_type,
|
2007-06-16 00:42:22 +02:00
|
|
|
CORE_ADDR *real_pc, CORE_ADDR *bp_addr,
|
|
|
|
struct regcache *regcache)
|
2003-05-03 21:39:23 +02:00
|
|
|
{
|
2008-09-15 22:14:04 +02:00
|
|
|
gdb_assert (gdbarch_push_dummy_code_p (gdbarch));
|
|
|
|
|
|
|
|
return gdbarch_push_dummy_code (gdbarch, sp, funaddr,
|
|
|
|
args, nargs, value_type, real_pc, bp_addr,
|
|
|
|
regcache);
|
2003-05-03 21:39:23 +02:00
|
|
|
}
|
|
|
|
|
Stop assuming no-debug-info functions return int
The fact that GDB defaults to assuming that functions return int, when
it has no debug info for the function has been a recurring source of
user confusion. Recently this came up on the errno pretty printer
discussions. Shortly after, it came up again on IRC, with someone
wondering why does getenv() in GDB return a negative int:
(gdb) p getenv("PATH")
$1 = -6185
This question (with s/getenv/random-other-C-runtime-function) is a FAQ
on IRC.
The reason for the above is:
(gdb) p getenv
$2 = {<text variable, no debug info>} 0x7ffff7751d80 <getenv>
(gdb) ptype getenv
type = int ()
... which means that GDB truncated the 64-bit pointer that is actually
returned from getent to 32-bit, and then sign-extended it:
(gdb) p /x -6185
$6 = 0xffffe7d7
The workaround is to cast the function to the right type, like:
(gdb) p ((char *(*) (const char *)) getenv) ("PATH")
$3 = 0x7fffffffe7d7 "/usr/local/bin:/"...
IMO, we should do better than this.
I see the "assume-int" issue the same way I see printing bogus values
for optimized-out variables instead of "<optimized out>" -- I'd much
rather that the debugger tells me "I don't know" and tells me how to
fix it than showing me bogus misleading results, making me go around
tilting at windmills.
If GDB prints a signed integer when you're expecting a pointer or
aggregate, you at least have some sense that something is off, but
consider the case of the function actually returning a 64-bit integer.
For example, compile this without debug info:
unsigned long long
function ()
{
return 0x7fffffffffffffff;
}
Currently, with pristine GDB, you get:
(gdb) p function ()
$1 = -1 # incorrect
(gdb) p /x function ()
$2 = 0xffffffff # incorrect
maybe after spending a few hours debugging you suspect something is
wrong with that -1, and do:
(gdb) ptype function
type = int ()
and maybe, just maybe, you realize that the function actually returns
unsigned long long. And you try to fix it with:
(gdb) p /x (unsigned long long) function ()
$3 = 0xffffffffffffffff # incorrect
... which still produces the wrong result, because GDB simply applied
int to unsigned long long conversion. Meaning, it sign-extended the
integer that it extracted from the return of the function, to 64-bits.
and then maybe, after asking around on IRC, you realize you have to
cast the function to a pointer of the right type, and call that. It
won't be easy, but after a few missteps, you'll get to it:
..... (gdb) p /x ((unsigned long long(*) ()) function) ()
$666 = 0x7fffffffffffffff # finally! :-)
So to improve on the user experience, this patch does the following
(interrelated) things:
- makes no-debug-info functions no longer default to "int" as return
type. Instead, they're left with NULL/"<unknown return type>"
return type.
(gdb) ptype getenv
type = <unknown return type> ()
- makes calling a function with unknown return type an error.
(gdb) p getenv ("PATH")
'getenv' has unknown return type; cast the call to its declared return type
- and then to make it easier to call the function, makes it possible
to _only_ cast the return of the function to the right type,
instead of having to cast the function to a function pointer:
(gdb) p (char *) getenv ("PATH") # now Just Works
$3 = 0x7fffffffe7d7 "/usr/local/bin:/"...
(gdb) p ((char *(*) (const char *)) getenv) ("PATH") # continues working
$4 = 0x7fffffffe7d7 "/usr/local/bin:/"...
I.e., it makes GDB default the function's return type to the type
of the cast, and the function's parameters to the type of the
arguments passed down.
After this patch, here's what you'll get for the "unsigned long long"
example above:
(gdb) p function ()
'function' has unknown return type; cast the call to its declared return type
(gdb) p /x (unsigned long long) function ()
$4 = 0x7fffffffffffffff # correct!
Note that while with "print" GDB shows the name of the function that
has the problem:
(gdb) p getenv ("PATH")
'getenv' has unknown return type; cast the call to its declared return type
which can by handy in more complicated expressions, "ptype" does not:
(gdb) ptype getenv ("PATH")
function has unknown return type; cast the call to its declared return type
This will be fixed in the next patch.
gdb/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* ada-lang.c (ada_evaluate_subexp) <TYPE_CODE_FUNC>: Don't handle
TYPE_GNU_IFUNC specially here. Throw error if return type is
unknown.
* ada-typeprint.c (print_func_type): Handle functions with unknown
return type.
* c-typeprint.c (c_type_print_base): Handle functions and methods
with unknown return type.
* compile/compile-c-symbols.c (convert_symbol_bmsym)
<mst_text_gnu_ifunc>: Use nodebug_text_gnu_ifunc_symbol.
* compile/compile-c-types.c: Include "objfiles.h".
(convert_func): For functions with unknown return type, warn and
default to int.
* compile/compile-object-run.c (compile_object_run): Adjust call
to call_function_by_hand_dummy.
* elfread.c (elf_gnu_ifunc_resolve_addr): Adjust call to
call_function_by_hand.
* eval.c (evaluate_subexp_standard): Adjust calls to
call_function_by_hand. Handle functions and methods with unknown
return type. Pass expect_type to call_function_by_hand.
* f-typeprint.c (f_type_print_base): Handle functions with unknown
return type.
* gcore.c (call_target_sbrk): Adjust call to
call_function_by_hand.
* gdbtypes.c (objfile_type): Leave nodebug text symbol with NULL
return type instead of int. Make nodebug_text_gnu_ifunc_symbol be
an integer address type instead of nodebug.
* guile/scm-value.c (gdbscm_value_call): Adjust call to
call_function_by_hand.
* infcall.c (error_call_unknown_return_type): New function.
(call_function_by_hand): New "default_return_type" parameter.
Pass it down.
(call_function_by_hand_dummy): New "default_return_type"
parameter. Use it instead of defaulting to int. If there's no
default and the return type is unknown, throw an error. If
there's a default return type, and the called function has no
debug info, then assume the function is prototyped.
* infcall.h (call_function_by_hand, call_function_by_hand_dummy):
New "default_return_type" parameter.
(error_call_unknown_return_type): New declaration.
* linux-fork.c (call_lseek): Cast return type of lseek.
(inferior_call_waitpid, checkpoint_command): Adjust calls to
call_function_by_hand.
* linux-tdep.c (linux_infcall_mmap, linux_infcall_munmap): Adjust
calls to call_function_by_hand.
* m2-typeprint.c (m2_procedure): Handle functions with unknown
return type.
* objc-lang.c (lookup_objc_class, lookup_child_selector)
(value_nsstring, print_object_command): Adjust calls to
call_function_by_hand.
* p-typeprint.c (pascal_type_print_varspec_prefix): Handle
functions with unknown return type.
(pascal_type_print_func_varspec_suffix): New function.
(pascal_type_print_varspec_suffix) <TYPE_CODE_FUNC,
TYPE_CODE_METHOD>: Use it.
* python/py-value.c (valpy_call): Adjust call to
call_function_by_hand.
* rust-lang.c (rust_evaluate_funcall): Adjust call to
call_function_by_hand.
* valarith.c (value_x_binop, value_x_unop): Adjust calls to
call_function_by_hand.
* valops.c (value_allocate_space_in_inferior): Adjust call to
call_function_by_hand.
* typeprint.c (type_print_unknown_return_type): New function.
* typeprint.h (type_print_unknown_return_type): New declaration.
gdb/testsuite/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* gdb.base/break-main-file-remove-fail.exp (test_remove_bp): Cast
return type of munmap in infcall.
* gdb.base/break-probes.exp: Cast return type of foo in infcall.
* gdb.base/checkpoint.exp: Simplify using for loop. Cast return
type of ftell in infcall.
* gdb.base/dprintf-detach.exp (dprintf_detach_test): Cast return
type of getpid in infcall.
* gdb.base/infcall-exec.exp: Cast return type of execlp in
infcall.
* gdb.base/info-os.exp: Cast return type of getpid in infcall.
Bail on failure to extract the pid.
* gdb.base/nodebug.c: #include <stdint.h>.
(multf, multf_noproto, mult, mult_noproto, add8, add8_noproto):
New functions.
* gdb.base/nodebug.exp (test_call_promotion): New procedure.
Change expected output of print/whatis/ptype with functions with
no debug info. Test all supported languages. Call
test_call_promotion.
* gdb.compile/compile.exp: Adjust expected output to expect
warning.
* gdb.threads/siginfo-threads.exp: Likewise.
2017-09-04 21:21:13 +02:00
|
|
|
/* See infcall.h. */
|
|
|
|
|
|
|
|
void
|
|
|
|
error_call_unknown_return_type (const char *func_name)
|
|
|
|
{
|
|
|
|
if (func_name != NULL)
|
|
|
|
error (_("'%s' has unknown return type; "
|
|
|
|
"cast the call to its declared return type"),
|
|
|
|
func_name);
|
|
|
|
else
|
|
|
|
error (_("function has unknown return type; "
|
|
|
|
"cast the call to its declared return type"));
|
|
|
|
}
|
|
|
|
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
/* Fetch the name of the function at FUNADDR.
|
|
|
|
This is used in printing an error message for call_function_by_hand.
|
|
|
|
BUF is used to print FUNADDR in hex if the function name cannot be
|
|
|
|
determined. It must be large enough to hold formatted result of
|
|
|
|
RAW_FUNCTION_ADDRESS_FORMAT. */
|
|
|
|
|
|
|
|
static const char *
|
|
|
|
get_function_name (CORE_ADDR funaddr, char *buf, int buf_size)
|
|
|
|
{
|
|
|
|
{
|
|
|
|
struct symbol *symbol = find_pc_function (funaddr);
|
2010-05-14 23:25:51 +02:00
|
|
|
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
if (symbol)
|
|
|
|
return SYMBOL_PRINT_NAME (symbol);
|
|
|
|
}
|
|
|
|
|
|
|
|
{
|
|
|
|
/* Try the minimal symbols. */
|
* minsyms.h (struct bound_minimal_symbol): New.
(lookup_minimal_symbol_and_objfile): Return bound_minimal_symbol.
Remove objfile argument.
(lookup_minimal_symbol_by_pc_section, lookup_minimal_symbol_by_pc):
Return bound_minimal_symbol.
* minsyms.c (lookup_minimal_symbol_by_pc_1)
(lookup_minimal_symbol_by_pc_section, lookup_minimal_symbol_by_pc):
Return bound_minimal_symbol.
(in_gnu_ifunc_stub): Update.
(lookup_minimal_symbol_and_objfile): Return bound_minimal_symbol.
Remove 'objfile_p' argument.
(lookup_solib_trampoline_symbol_by_pc): Update.
* ada-tasks.c, amd64-windows-tdep.c, arm-tdep.c,
arm-wince-tdep.c, block.c, blockframe.c, breakpoint.c, btrace.c,
c-valprint.c, dwarf2loc.c, elfread.c, frame.c, frv-tdep.c,
glibc-tdep.c, gnu-v2-abi.c, gnu-v3-abi.c, hppa-hpux-tdep.c,
i386-tdep.c, ia64-tdep.c, infcall.c, infcmd.c, jit.c,
linux-fork.c, m32c-tdep.c, m68hc11-tdep.c, maint.c,
mips-tdep.c, p-valprint.c, parse.c, ppc-linux-tdep.c,
ppc-sysv-tdep.c, printcmd.c, rs6000-tdep.c, sh64-tdep.c,
stack.c, symtab.c, tui/tui-disasm.c: Update.
2013-04-08 21:59:09 +02:00
|
|
|
struct bound_minimal_symbol msymbol = lookup_minimal_symbol_by_pc (funaddr);
|
2010-05-14 23:25:51 +02:00
|
|
|
|
* minsyms.h (struct bound_minimal_symbol): New.
(lookup_minimal_symbol_and_objfile): Return bound_minimal_symbol.
Remove objfile argument.
(lookup_minimal_symbol_by_pc_section, lookup_minimal_symbol_by_pc):
Return bound_minimal_symbol.
* minsyms.c (lookup_minimal_symbol_by_pc_1)
(lookup_minimal_symbol_by_pc_section, lookup_minimal_symbol_by_pc):
Return bound_minimal_symbol.
(in_gnu_ifunc_stub): Update.
(lookup_minimal_symbol_and_objfile): Return bound_minimal_symbol.
Remove 'objfile_p' argument.
(lookup_solib_trampoline_symbol_by_pc): Update.
* ada-tasks.c, amd64-windows-tdep.c, arm-tdep.c,
arm-wince-tdep.c, block.c, blockframe.c, breakpoint.c, btrace.c,
c-valprint.c, dwarf2loc.c, elfread.c, frame.c, frv-tdep.c,
glibc-tdep.c, gnu-v2-abi.c, gnu-v3-abi.c, hppa-hpux-tdep.c,
i386-tdep.c, ia64-tdep.c, infcall.c, infcmd.c, jit.c,
linux-fork.c, m32c-tdep.c, m68hc11-tdep.c, maint.c,
mips-tdep.c, p-valprint.c, parse.c, ppc-linux-tdep.c,
ppc-sysv-tdep.c, printcmd.c, rs6000-tdep.c, sh64-tdep.c,
stack.c, symtab.c, tui/tui-disasm.c: Update.
2013-04-08 21:59:09 +02:00
|
|
|
if (msymbol.minsym)
|
change minsym representation
In a later patch we're going to change the minimal symbol address
calculation to apply section offsets at the point of use. To make it
simpler to catch potential problem spots, this patch changes the
representation of minimal symbols and introduces new
minimal-symbol-specific variants of the various accessors. This is
necessary because it would be excessively ambitious to try to convert
all the symbol types at once.
The core of this change is just renaming a field in minimal_symbol;
the rest is just a fairly mechanical rewording.
2014-02-26 Tom Tromey <tromey@redhat.com>
* symtab.h (struct minimal_symbol) <mginfo>: Rename from ginfo.
(MSYMBOL_VALUE, MSYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_BYTES)
(MSYMBOL_BLOCK_VALUE, MSYMBOL_VALUE_CHAIN, MSYMBOL_LANGUAGE)
(MSYMBOL_SECTION, MSYMBOL_OBJ_SECTION, MSYMBOL_NATURAL_NAME)
(MSYMBOL_LINKAGE_NAME, MSYMBOL_PRINT_NAME, MSYMBOL_DEMANGLED_NAME)
(MSYMBOL_SET_LANGUAGE, MSYMBOL_SEARCH_NAME)
(MSYMBOL_MATCHES_SEARCH_NAME, MSYMBOL_SET_NAMES): New macros.
* ada-lang.c (ada_main_name): Update.
(ada_lookup_simple_minsym): Update.
(ada_make_symbol_completion_list): Update.
(ada_add_standard_exceptions): Update.
* ada-tasks.c (read_atcb, ada_tasks_inferior_data_sniffer): Update.
* aix-thread.c (pdc_symbol_addrs, pd_enable): Update.
* amd64-windows-tdep.c (amd64_skip_main_prologue): Update.
* arm-tdep.c (skip_prologue_function): Update.
(arm_skip_stack_protector, arm_skip_stub): Update.
* arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update.
(arm_wince_skip_main_prologue): Update.
* auxv.c (ld_so_xfer_auxv): Update.
* avr-tdep.c (avr_scan_prologue): Update.
* ax-gdb.c (gen_var_ref): Update.
* block.c (call_site_for_pc): Update.
* blockframe.c (get_pc_function_start): Update.
(find_pc_partial_function_gnu_ifunc): Update.
* breakpoint.c (create_overlay_event_breakpoint): Update.
(create_longjmp_master_breakpoint): Update.
(create_std_terminate_master_breakpoint): Update.
(create_exception_master_breakpoint): Update.
(resolve_sal_pc): Update.
* bsd-uthread.c (bsd_uthread_lookup_address): Update.
* btrace.c (ftrace_print_function_name, ftrace_function_switched):
Update.
* c-valprint.c (c_val_print): Update.
* coff-pe-read.c (add_pe_forwarded_sym): Update.
* coffread.c (coff_symfile_read): Update.
* common/agent.c (agent_look_up_symbols): Update.
* dbxread.c (find_stab_function_addr): Update.
(end_psymtab): Update.
* dwarf2loc.c (call_site_to_target_addr): Update.
(func_verify_no_selftailcall): Update.
(tailcall_dump): Update.
(call_site_find_chain_1): Update.
(dwarf_expr_reg_to_entry_parameter): Update.
* elfread.c (elf_gnu_ifunc_record_cache): Update.
(elf_gnu_ifunc_resolve_by_got): Update.
* f-valprint.c (info_common_command): Update.
* findvar.c (read_var_value): Update.
* frame.c (get_prev_frame_1): Update.
(inside_main_func): Update.
* frv-tdep.c (frv_skip_main_prologue): Update.
(frv_frame_this_id): Update.
* glibc-tdep.c (glibc_skip_solib_resolver): Update.
* gnu-v2-abi.c (gnuv2_value_rtti_type): Update.
* gnu-v3-abi.c (gnuv3_rtti_type): Update.
(gnuv3_skip_trampoline): Update.
* hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline): Update.
(hppa64_hpux_in_solib_call_trampoline): Update.
(hppa_hpux_skip_trampoline_code): Update.
(hppa64_hpux_search_dummy_call_sequence): Update.
(hppa_hpux_find_import_stub_for_addr): Update.
(hppa_hpux_find_dummy_bpaddr): Update.
* hppa-tdep.c (hppa_symbol_address)
(hppa_lookup_stub_minimal_symbol): Update.
* i386-tdep.c (i386_skip_main_prologue): Update.
(i386_pe_skip_trampoline_code): Update.
* ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update.
* infcall.c (get_function_name): Update.
* infcmd.c (until_next_command): Update.
* jit.c (jit_breakpoint_re_set_internal): Update.
(jit_inferior_init): Update.
* linespec.c (minsym_found): Update.
(add_minsym): Update.
* linux-fork.c (info_checkpoints_command): Update.
* linux-nat.c (get_signo): Update.
* linux-thread-db.c (inferior_has_bug): Update.
* m32c-tdep.c (m32c_return_value): Update.
(m32c_m16c_address_to_pointer): Update.
(m32c_m16c_pointer_to_address): Update.
* m32r-tdep.c (m32r_frame_this_id): Update.
* m68hc11-tdep.c (m68hc11_get_register_info): Update.
* machoread.c (macho_resolve_oso_sym_with_minsym): Update.
* maint.c (maintenance_translate_address): Update.
* minsyms.c (add_minsym_to_hash_table): Update.
(add_minsym_to_demangled_hash_table): Update.
(msymbol_objfile): Update.
(lookup_minimal_symbol): Update.
(iterate_over_minimal_symbols): Update.
(lookup_minimal_symbol_text): Update.
(lookup_minimal_symbol_by_pc_name): Update.
(lookup_minimal_symbol_solib_trampoline): Update.
(lookup_minimal_symbol_by_pc_section_1): Update.
(lookup_minimal_symbol_and_objfile): Update.
(prim_record_minimal_symbol_full): Update.
(compare_minimal_symbols): Update.
(compact_minimal_symbols): Update.
(build_minimal_symbol_hash_tables): Update.
(install_minimal_symbols): Update.
(terminate_minimal_symbol_table): Update.
(find_solib_trampoline_target): Update.
(minimal_symbol_upper_bound): Update.
* mips-linux-tdep.c (mips_linux_skip_resolver): Update.
* mips-tdep.c (mips_stub_frame_sniffer): Update.
(mips_skip_pic_trampoline_code): Update.
* msp430-tdep.c (msp430_skip_trampoline_code): Update.
* objc-lang.c (selectors_info): Update.
(classes_info): Update.
(find_methods): Update.
(find_imps): Update.
(find_objc_msgsend): Update.
* objfiles.c (objfile_relocate1): Update.
* objfiles.h (ALL_OBJFILE_MSYMBOLS): Update.
* obsd-tdep.c (obsd_skip_solib_resolver): Update.
* p-valprint.c (pascal_val_print): Update.
* parse.c (write_exp_msymbol): Update.
* ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code)
(ppc_linux_spe_context_lookup, ppc_elfv2_skip_entrypoint): Update.
* ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update.
* printcmd.c (build_address_symbolic): Update.
(sym_info): Update.
(address_info): Update.
* proc-service.c (ps_pglobal_lookup): Update.
* psymtab.c (find_pc_sect_psymtab_closer): Update.
(find_pc_sect_psymtab): Update.
* python/py-framefilter.c (py_print_frame): Update.
* ravenscar-thread.c (get_running_thread_id): Update.
* record-btrace.c (btrace_call_history, btrace_get_bfun_name):
Update.
* remote.c (remote_check_symbols): Update.
* rs6000-tdep.c (rs6000_skip_main_prologue): Update.
(rs6000_skip_trampoline_code): Update.
* sh64-tdep.c (sh64_elf_make_msymbol_special): Update.
* sol2-tdep.c (sol2_skip_solib_resolver): Update.
* solib-dsbt.c (lm_base): Update.
* solib-frv.c (lm_base): Update.
(main_got): Update.
* solib-irix.c (locate_base): Update.
* solib-som.c (som_solib_create_inferior_hook): Update.
(som_solib_desire_dynamic_linker_symbols): Update.
(link_map_start): Update.
* solib-spu.c (spu_enable_break): Update.
(ocl_enable_break): Update.
* solib-svr4.c (elf_locate_base): Update.
(enable_break): Update.
* spu-tdep.c (spu_get_overlay_table): Update.
(spu_catch_start): Update.
(flush_ea_cache): Update.
* stabsread.c (define_symbol): Update.
(scan_file_globals): Update.
* stack.c (find_frame_funname): Update.
(frame_info): Update.
* symfile.c (simple_read_overlay_table): Update.
(simple_overlay_update): Update.
* symmisc.c (dump_msymbols): Update.
* symtab.c (fixup_section): Update.
(find_pc_sect_line): Update.
(skip_prologue_sal): Update.
(search_symbols): Update.
(print_msymbol_info): Update.
(rbreak_command): Update.
(MCOMPLETION_LIST_ADD_SYMBOL): New macro.
(completion_list_objc_symbol): Update.
(default_make_symbol_completion_list_break_on): Update.
* tracepoint.c (scope_info): Update.
* tui/tui-disasm.c (tui_find_disassembly_address): Update.
(tui_get_begin_asm_address): Update.
* valops.c (find_function_in_inferior): Update.
* value.c (value_static_field): Update.
(value_fn_field): Update.
2013-08-15 16:43:43 +02:00
|
|
|
return MSYMBOL_PRINT_NAME (msymbol.minsym);
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
{
|
|
|
|
char *tmp = xstrprintf (_(RAW_FUNCTION_ADDRESS_FORMAT),
|
|
|
|
hex_string (funaddr));
|
2010-05-14 23:25:51 +02:00
|
|
|
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
gdb_assert (strlen (tmp) + 1 <= buf_size);
|
|
|
|
strcpy (buf, tmp);
|
|
|
|
xfree (tmp);
|
|
|
|
return buf;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-09-09 19:23:24 +02:00
|
|
|
/* All the meta data necessary to extract the call's return value. */
|
|
|
|
|
|
|
|
struct call_return_meta_info
|
|
|
|
{
|
|
|
|
/* The caller frame's architecture. */
|
|
|
|
struct gdbarch *gdbarch;
|
|
|
|
|
|
|
|
/* The called function. */
|
|
|
|
struct value *function;
|
|
|
|
|
|
|
|
/* The return value's type. */
|
|
|
|
struct type *value_type;
|
|
|
|
|
|
|
|
/* Are we returning a value using a structure return or a normal
|
|
|
|
value return? */
|
|
|
|
int struct_return_p;
|
|
|
|
|
|
|
|
/* If using a structure return, this is the structure's address. */
|
|
|
|
CORE_ADDR struct_addr;
|
|
|
|
|
|
|
|
/* Whether stack temporaries are enabled. */
|
|
|
|
int stack_temporaries_enabled;
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Extract the called function's return value. */
|
|
|
|
|
|
|
|
static struct value *
|
|
|
|
get_call_return_value (struct call_return_meta_info *ri)
|
|
|
|
{
|
|
|
|
struct value *retval = NULL;
|
|
|
|
int stack_temporaries = thread_stack_temporaries_enabled_p (inferior_ptid);
|
|
|
|
|
|
|
|
if (TYPE_CODE (ri->value_type) == TYPE_CODE_VOID)
|
|
|
|
retval = allocate_value (ri->value_type);
|
|
|
|
else if (ri->struct_return_p)
|
|
|
|
{
|
|
|
|
if (stack_temporaries)
|
|
|
|
{
|
|
|
|
retval = value_from_contents_and_address (ri->value_type, NULL,
|
|
|
|
ri->struct_addr);
|
|
|
|
push_thread_stack_temporary (inferior_ptid, retval);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
retval = allocate_value (ri->value_type);
|
|
|
|
read_value_memory (retval, 0, 1, ri->struct_addr,
|
|
|
|
value_contents_raw (retval),
|
|
|
|
TYPE_LENGTH (ri->value_type));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
retval = allocate_value (ri->value_type);
|
|
|
|
gdbarch_return_value (ri->gdbarch, ri->function, ri->value_type,
|
|
|
|
get_current_regcache (),
|
|
|
|
value_contents_raw (retval), NULL);
|
|
|
|
if (stack_temporaries && class_or_union_p (ri->value_type))
|
|
|
|
{
|
|
|
|
/* Values of class type returned in registers are copied onto
|
|
|
|
the stack and their lval_type set to lval_memory. This is
|
|
|
|
required because further evaluation of the expression
|
|
|
|
could potentially invoke methods on the return value
|
|
|
|
requiring GDB to evaluate the "this" pointer. To evaluate
|
|
|
|
the this pointer, GDB needs the memory address of the
|
|
|
|
value. */
|
|
|
|
value_force_lval (retval, ri->struct_addr);
|
|
|
|
push_thread_stack_temporary (inferior_ptid, retval);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
gdb_assert (retval != NULL);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Data for the FSM that manages an infcall. It's main job is to
|
|
|
|
record the called function's return value. */
|
|
|
|
|
|
|
|
struct call_thread_fsm
|
|
|
|
{
|
|
|
|
/* The base class. */
|
|
|
|
struct thread_fsm thread_fsm;
|
|
|
|
|
|
|
|
/* All the info necessary to be able to extract the return
|
|
|
|
value. */
|
|
|
|
struct call_return_meta_info return_meta_info;
|
|
|
|
|
|
|
|
/* The called function's return value. This is extracted from the
|
|
|
|
target before the dummy frame is popped. */
|
|
|
|
struct value *return_value;
|
Replace the sync_execution global with a new enum prompt_state tristate
When sync_execution (a boolean) is true, it means we're running a
foreground command -- we hide the prompt stop listening to input, give
the inferior the terminal, then go to the event loop waiting for the
target to stop.
With multiple independent UIs, we need to track whether each UI is
synchronously blocked waiting for the target. IOW, if you do
"continue" in one console, that console stops accepting commands, but
you should still be free to type other commands in the others
consoles.
Just simply making sync_execution be per-UI alone not sufficient,
because of this in fetch_inferior_event:
/* If the inferior was in sync execution mode, and now isn't,
restore the prompt (a synchronous execution command has finished,
and we're ready for input). */
if (current_ui->async && was_sync && !sync_execution)
observer_notify_sync_execution_done ();
We'd have to record at entry the "was_sync" state for each UI, not
just of the current UI.
This patch instead replaces the sync_execution flag by a per-UI
tristate flag indicating the command line prompt state:
enum prompt_state
{
/* The command line is blocked simulating synchronous execution.
This is used to implement the foreground execution commands
('run', 'continue', etc.). We won't display the prompt and
accept further commands until the execution is actually over. */
PROMPT_BLOCKED,
/* The command finished; display the prompt before returning back to
the top level. */
PROMPT_NEEDED,
/* We've displayed the prompt already, ready for input. */
PROMPTED,
;
I think the end result is _much_ clearer than the current code, and,
it addresses the original motivation too.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* annotate.c: Include top.h.
(async_background_execution_p): Delete.
(print_value_flags): Check the UI's prompt state rather then
async_background_execution_p.
* event-loop.c (start_event_loop): Set the prompt state to
PROMPT_NEEDED.
* event-top.c (display_gdb_prompt, async_enable_stdin)
(async_disable_stdin): Check the current UI's prompt state instead
of the sync_execution global.
(command_line_handler): Set the prompt state to PROMPT_NEEDED
before running a command, and display the prompt if still needed
afterwards.
* infcall.c (struct call_thread_fsm) <waiting_ui>: New field.
(new_call_thread_fsm): New parameter 'waiting_ui'. Store it.
(call_thread_fsm_should_stop): Set the prompt state to
PROMPT_NEEDED.
(run_inferior_call): Adjust to temporarily set the prompt state to
PROMPT_BLOCKED instead of using the sync_execution global.
(call_function_by_hand_dummy): Pass the current UI to
new_call_thread_fsm.
* infcmd.c: Include top.h.
(continue_1): Check the current UI's prompt state instead of the
sync_execution global.
(continue_command): Validate global execution state before calling
prepare_execution_command.
(step_1): Call all_uis_check_sync_execution_done.
(attach_post_wait): Don't call async_enable_stdin here. Remove
reference to sync_execution.
* infrun.c (sync_execution): Delete global.
(follow_fork_inferior)
(reinstall_readline_callback_handler_cleanup): Check the current
UI's prompt state instead of the sync_execution global.
(check_curr_ui_sync_execution_done)
(all_uis_check_sync_execution_done): New functions.
(fetch_inferior_event): Call all_uis_check_sync_execution_done
instead of trying to determine whether the global sync execution
changed.
(handle_no_resumed): Check the prompt state of all UIs.
(normal_stop): Emit the no unwait-for even to all PROMPT_BLOCKED
UIs. Emit the "Switching to" notification to all UIs. Enable
stdin in all UIs.
* infrun.h (sync_execution): Delete.
(all_uis_check_sync_execution_done): Declare.
* main.c (captured_command_loop): Don't call
interp_pre_command_loop if the prompt is blocked.
(catch_command_errors, catch_command_errors_const): Adjust.
(captured_main): Set the initial prompt state to PROMPT_NEEDED.
* mi/mi-interp.c (display_mi_prompt): Set the prompt state to
PROMPTED.
(mi_interpreter_resume): Don't clear sync_execution. Remove hack
comment.
(mi_execute_command_input_handler): Set the prompt state to
PROMPT_NEEDED before executing the command, and only display the
prompt if the prompt state is PROMPT_NEEDED afterwards.
(mi_on_resume_1): Adjust to check the prompt state.
* target.c (target_terminal_inferior): Adjust to check the prompt
state.
* top.c (wait_sync_command_done, maybe_wait_sync_command_done)
(execute_command): Check the current UI's prompt state instead of
sync_execution.
* top.h (enum prompt_state): New.
(struct ui) <prompt_state>: New field.
(ALL_UIS): New macro.
2016-06-21 02:11:51 +02:00
|
|
|
|
|
|
|
/* The top level that started the infcall (and is synchronously
|
|
|
|
waiting for it to end). */
|
|
|
|
struct ui *waiting_ui;
|
2015-09-09 19:23:24 +02:00
|
|
|
};
|
|
|
|
|
Push thread->control.command_interp to the struct thread_fsm
I noticed that if we step into an inline function, step_1 never
reaches proceed, and thus nevers sets the thread's
tp->control.command_interp. Because of that,
should_print_stop_to_console fails to determine that is should print
stop output to the console.
The fix is to set the thread's command_interp earlier. However, I
realized that we can move that field to the thread_fsm, given that its
lifetime is exactly the same as thread_fsm. So the patch plumbs all
fsms constructors to take the command interp and store it in the
thread_fsm.
We can see the fix in action, with e.g., the gdb.opt/inline-cmds.exp
test, and issuing a step when stopped at line 67:
&"s\n"
^running
*running,thread-id="all"
(gdb)
~"67\t result = func2 ();\n"
*stopped,reason="end-stepping-range",frame={addr="0x00000000004004d0",func="main",args=[],file="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",fullname="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",line="67"},thread-id="1",stopped-threads="all",core="0"
(gdb)
s
&"s\n"
^running
*running,thread-id="all"
(gdb)
+ ~"func2 () at /home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c:67\n"
+ ~"67\t result = func2 ();\n"
*stopped,reason="end-stepping-range",frame={addr="0x00000000004004d0",func="func2",args=[],file="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",fullname="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",line="67"},thread-id="1",stopped-threads="all",core="0"
(gdb)
(The inline-cmds.exp command is adjusted to exercise this.)
(Due to the follow_fork change, this also fixes "next N" across a fork
with "set follow-fork child" with "set detach-on-fork on". Commands
that rely on internal breakpoints, like "finish" will still require
more work to migrate breakpoints etc. to the child thread.)
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* breakpoint.c (new_until_break_fsm): Add 'cmd_interp' parameter.
(until_break_fsm_should_stop, until_break_fsm_clean_up): Add
thread parameter.
(until_break_command): Pass command interpreter to thread fsm
ctor.
* cli/cli-interp.c (should_print_stop_to_console): Adjust.
* gdbthread.h (struct thread_control_state) <command_interp>:
Delete field.
* infcall.c (new_call_thread_fsm): Add 'cmd_interp' parameter.
Pass it down.
(call_thread_fsm_should_stop): Add thread parameter.
(call_function_by_hand_dummy): Pass command interpreter to thread
fsm ctor. Pass thread pointer to fsm clean up method.
* infcmd.c: Include interps.h.
(struct step_command_fsm) <thread>: Delete field.
(new_step_command_fsm): Add 'cmd_interp' parameter. Pass it down.
(step_command_fsm_prepare): Remove references to fsm's thread
field.
(step_1): Pass command interpreter to thread
fsm ctor. Pass thread pointer to fsm clean up method.
(step_command_fsm_should_stop, step_command_fsm_clean_up): Add
thread parameter and use it.
(new_until_next_fsm): Add 'cmd_interp' parameter. Pass it down.
(until_next_fsm_should_stop, until_next_fsm_clean_up): Add thread
parameter and use it.
(until_next_command): Pass command interpreter to thread fsm ctor.
(struct finish_command_fsm) <thread>: Delete field.
(finish_command_fsm_ops): Add NULL slot for should_notify_stop.
(new_finish_command_fsm): Add 'cmd_interp' parameter and pass it
down. Remove thread parameter and adjust.
(finish_command_fsm_should_stop, finish_command_fsm_clean_up): Add
thread parameter and use it.
(finish_command): Pass command interpreter to thread fsm ctor.
Don't pass thread.
* infrun.c (follow_fork): Move thread fsm to child fork instead of
command interpreter, only.
(clear_proceed_status_thread): Remove reference to command_interp.
(proceed): Don't record the thread's command interpreter.
(clean_up_just_stopped_threads_fsms): Pass thread to fsm clean_up
method.
(fetch_inferior_event): Pass thread to fsm should_stop method.
* thread-fsm.c (thread_fsm_ctor): Add 'cmd_interp' parameter.
Store it.
(thread_fsm_clean_up, thread_fsm_should_stop): Add thread
parameter and pass it down.
* thread-fsm.h (struct thread_fsm) <command_interp>: New field.
(struct thread_fsm_ops) <clean_up, should_stop>: Add thread
parameter.
(thread_fsm_ctor): Add 'cmd_interp' parameter.
(thread_fsm_clean_up, thread_fsm_should_stop): Add thread
parameter.
* thread.c (thread_cancel_execution_command): Pass thread to
thread fsm clean_up method.
gdb/testsuite/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* gdb.opt/inline-cmds.c: Add "set mi break here" marker.
* gdb.opt/inline-cmds.exp: Add MI tests.
2016-06-21 02:11:53 +02:00
|
|
|
static int call_thread_fsm_should_stop (struct thread_fsm *self,
|
|
|
|
struct thread_info *thread);
|
2015-09-09 19:23:24 +02:00
|
|
|
static int call_thread_fsm_should_notify_stop (struct thread_fsm *self);
|
|
|
|
|
|
|
|
/* call_thread_fsm's vtable. */
|
|
|
|
|
|
|
|
static struct thread_fsm_ops call_thread_fsm_ops =
|
|
|
|
{
|
|
|
|
NULL, /*dtor */
|
|
|
|
NULL, /* clean_up */
|
|
|
|
call_thread_fsm_should_stop,
|
|
|
|
NULL, /* return_value */
|
|
|
|
NULL, /* async_reply_reason*/
|
|
|
|
call_thread_fsm_should_notify_stop,
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Allocate a new call_thread_fsm object. */
|
|
|
|
|
|
|
|
static struct call_thread_fsm *
|
Push thread->control.command_interp to the struct thread_fsm
I noticed that if we step into an inline function, step_1 never
reaches proceed, and thus nevers sets the thread's
tp->control.command_interp. Because of that,
should_print_stop_to_console fails to determine that is should print
stop output to the console.
The fix is to set the thread's command_interp earlier. However, I
realized that we can move that field to the thread_fsm, given that its
lifetime is exactly the same as thread_fsm. So the patch plumbs all
fsms constructors to take the command interp and store it in the
thread_fsm.
We can see the fix in action, with e.g., the gdb.opt/inline-cmds.exp
test, and issuing a step when stopped at line 67:
&"s\n"
^running
*running,thread-id="all"
(gdb)
~"67\t result = func2 ();\n"
*stopped,reason="end-stepping-range",frame={addr="0x00000000004004d0",func="main",args=[],file="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",fullname="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",line="67"},thread-id="1",stopped-threads="all",core="0"
(gdb)
s
&"s\n"
^running
*running,thread-id="all"
(gdb)
+ ~"func2 () at /home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c:67\n"
+ ~"67\t result = func2 ();\n"
*stopped,reason="end-stepping-range",frame={addr="0x00000000004004d0",func="func2",args=[],file="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",fullname="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",line="67"},thread-id="1",stopped-threads="all",core="0"
(gdb)
(The inline-cmds.exp command is adjusted to exercise this.)
(Due to the follow_fork change, this also fixes "next N" across a fork
with "set follow-fork child" with "set detach-on-fork on". Commands
that rely on internal breakpoints, like "finish" will still require
more work to migrate breakpoints etc. to the child thread.)
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* breakpoint.c (new_until_break_fsm): Add 'cmd_interp' parameter.
(until_break_fsm_should_stop, until_break_fsm_clean_up): Add
thread parameter.
(until_break_command): Pass command interpreter to thread fsm
ctor.
* cli/cli-interp.c (should_print_stop_to_console): Adjust.
* gdbthread.h (struct thread_control_state) <command_interp>:
Delete field.
* infcall.c (new_call_thread_fsm): Add 'cmd_interp' parameter.
Pass it down.
(call_thread_fsm_should_stop): Add thread parameter.
(call_function_by_hand_dummy): Pass command interpreter to thread
fsm ctor. Pass thread pointer to fsm clean up method.
* infcmd.c: Include interps.h.
(struct step_command_fsm) <thread>: Delete field.
(new_step_command_fsm): Add 'cmd_interp' parameter. Pass it down.
(step_command_fsm_prepare): Remove references to fsm's thread
field.
(step_1): Pass command interpreter to thread
fsm ctor. Pass thread pointer to fsm clean up method.
(step_command_fsm_should_stop, step_command_fsm_clean_up): Add
thread parameter and use it.
(new_until_next_fsm): Add 'cmd_interp' parameter. Pass it down.
(until_next_fsm_should_stop, until_next_fsm_clean_up): Add thread
parameter and use it.
(until_next_command): Pass command interpreter to thread fsm ctor.
(struct finish_command_fsm) <thread>: Delete field.
(finish_command_fsm_ops): Add NULL slot for should_notify_stop.
(new_finish_command_fsm): Add 'cmd_interp' parameter and pass it
down. Remove thread parameter and adjust.
(finish_command_fsm_should_stop, finish_command_fsm_clean_up): Add
thread parameter and use it.
(finish_command): Pass command interpreter to thread fsm ctor.
Don't pass thread.
* infrun.c (follow_fork): Move thread fsm to child fork instead of
command interpreter, only.
(clear_proceed_status_thread): Remove reference to command_interp.
(proceed): Don't record the thread's command interpreter.
(clean_up_just_stopped_threads_fsms): Pass thread to fsm clean_up
method.
(fetch_inferior_event): Pass thread to fsm should_stop method.
* thread-fsm.c (thread_fsm_ctor): Add 'cmd_interp' parameter.
Store it.
(thread_fsm_clean_up, thread_fsm_should_stop): Add thread
parameter and pass it down.
* thread-fsm.h (struct thread_fsm) <command_interp>: New field.
(struct thread_fsm_ops) <clean_up, should_stop>: Add thread
parameter.
(thread_fsm_ctor): Add 'cmd_interp' parameter.
(thread_fsm_clean_up, thread_fsm_should_stop): Add thread
parameter.
* thread.c (thread_cancel_execution_command): Pass thread to
thread fsm clean_up method.
gdb/testsuite/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* gdb.opt/inline-cmds.c: Add "set mi break here" marker.
* gdb.opt/inline-cmds.exp: Add MI tests.
2016-06-21 02:11:53 +02:00
|
|
|
new_call_thread_fsm (struct ui *waiting_ui, struct interp *cmd_interp,
|
Replace the sync_execution global with a new enum prompt_state tristate
When sync_execution (a boolean) is true, it means we're running a
foreground command -- we hide the prompt stop listening to input, give
the inferior the terminal, then go to the event loop waiting for the
target to stop.
With multiple independent UIs, we need to track whether each UI is
synchronously blocked waiting for the target. IOW, if you do
"continue" in one console, that console stops accepting commands, but
you should still be free to type other commands in the others
consoles.
Just simply making sync_execution be per-UI alone not sufficient,
because of this in fetch_inferior_event:
/* If the inferior was in sync execution mode, and now isn't,
restore the prompt (a synchronous execution command has finished,
and we're ready for input). */
if (current_ui->async && was_sync && !sync_execution)
observer_notify_sync_execution_done ();
We'd have to record at entry the "was_sync" state for each UI, not
just of the current UI.
This patch instead replaces the sync_execution flag by a per-UI
tristate flag indicating the command line prompt state:
enum prompt_state
{
/* The command line is blocked simulating synchronous execution.
This is used to implement the foreground execution commands
('run', 'continue', etc.). We won't display the prompt and
accept further commands until the execution is actually over. */
PROMPT_BLOCKED,
/* The command finished; display the prompt before returning back to
the top level. */
PROMPT_NEEDED,
/* We've displayed the prompt already, ready for input. */
PROMPTED,
;
I think the end result is _much_ clearer than the current code, and,
it addresses the original motivation too.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* annotate.c: Include top.h.
(async_background_execution_p): Delete.
(print_value_flags): Check the UI's prompt state rather then
async_background_execution_p.
* event-loop.c (start_event_loop): Set the prompt state to
PROMPT_NEEDED.
* event-top.c (display_gdb_prompt, async_enable_stdin)
(async_disable_stdin): Check the current UI's prompt state instead
of the sync_execution global.
(command_line_handler): Set the prompt state to PROMPT_NEEDED
before running a command, and display the prompt if still needed
afterwards.
* infcall.c (struct call_thread_fsm) <waiting_ui>: New field.
(new_call_thread_fsm): New parameter 'waiting_ui'. Store it.
(call_thread_fsm_should_stop): Set the prompt state to
PROMPT_NEEDED.
(run_inferior_call): Adjust to temporarily set the prompt state to
PROMPT_BLOCKED instead of using the sync_execution global.
(call_function_by_hand_dummy): Pass the current UI to
new_call_thread_fsm.
* infcmd.c: Include top.h.
(continue_1): Check the current UI's prompt state instead of the
sync_execution global.
(continue_command): Validate global execution state before calling
prepare_execution_command.
(step_1): Call all_uis_check_sync_execution_done.
(attach_post_wait): Don't call async_enable_stdin here. Remove
reference to sync_execution.
* infrun.c (sync_execution): Delete global.
(follow_fork_inferior)
(reinstall_readline_callback_handler_cleanup): Check the current
UI's prompt state instead of the sync_execution global.
(check_curr_ui_sync_execution_done)
(all_uis_check_sync_execution_done): New functions.
(fetch_inferior_event): Call all_uis_check_sync_execution_done
instead of trying to determine whether the global sync execution
changed.
(handle_no_resumed): Check the prompt state of all UIs.
(normal_stop): Emit the no unwait-for even to all PROMPT_BLOCKED
UIs. Emit the "Switching to" notification to all UIs. Enable
stdin in all UIs.
* infrun.h (sync_execution): Delete.
(all_uis_check_sync_execution_done): Declare.
* main.c (captured_command_loop): Don't call
interp_pre_command_loop if the prompt is blocked.
(catch_command_errors, catch_command_errors_const): Adjust.
(captured_main): Set the initial prompt state to PROMPT_NEEDED.
* mi/mi-interp.c (display_mi_prompt): Set the prompt state to
PROMPTED.
(mi_interpreter_resume): Don't clear sync_execution. Remove hack
comment.
(mi_execute_command_input_handler): Set the prompt state to
PROMPT_NEEDED before executing the command, and only display the
prompt if the prompt state is PROMPT_NEEDED afterwards.
(mi_on_resume_1): Adjust to check the prompt state.
* target.c (target_terminal_inferior): Adjust to check the prompt
state.
* top.c (wait_sync_command_done, maybe_wait_sync_command_done)
(execute_command): Check the current UI's prompt state instead of
sync_execution.
* top.h (enum prompt_state): New.
(struct ui) <prompt_state>: New field.
(ALL_UIS): New macro.
2016-06-21 02:11:51 +02:00
|
|
|
struct gdbarch *gdbarch, struct value *function,
|
2015-09-09 19:23:24 +02:00
|
|
|
struct type *value_type,
|
|
|
|
int struct_return_p, CORE_ADDR struct_addr)
|
|
|
|
{
|
|
|
|
struct call_thread_fsm *sm;
|
|
|
|
|
|
|
|
sm = XCNEW (struct call_thread_fsm);
|
Push thread->control.command_interp to the struct thread_fsm
I noticed that if we step into an inline function, step_1 never
reaches proceed, and thus nevers sets the thread's
tp->control.command_interp. Because of that,
should_print_stop_to_console fails to determine that is should print
stop output to the console.
The fix is to set the thread's command_interp earlier. However, I
realized that we can move that field to the thread_fsm, given that its
lifetime is exactly the same as thread_fsm. So the patch plumbs all
fsms constructors to take the command interp and store it in the
thread_fsm.
We can see the fix in action, with e.g., the gdb.opt/inline-cmds.exp
test, and issuing a step when stopped at line 67:
&"s\n"
^running
*running,thread-id="all"
(gdb)
~"67\t result = func2 ();\n"
*stopped,reason="end-stepping-range",frame={addr="0x00000000004004d0",func="main",args=[],file="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",fullname="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",line="67"},thread-id="1",stopped-threads="all",core="0"
(gdb)
s
&"s\n"
^running
*running,thread-id="all"
(gdb)
+ ~"func2 () at /home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c:67\n"
+ ~"67\t result = func2 ();\n"
*stopped,reason="end-stepping-range",frame={addr="0x00000000004004d0",func="func2",args=[],file="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",fullname="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",line="67"},thread-id="1",stopped-threads="all",core="0"
(gdb)
(The inline-cmds.exp command is adjusted to exercise this.)
(Due to the follow_fork change, this also fixes "next N" across a fork
with "set follow-fork child" with "set detach-on-fork on". Commands
that rely on internal breakpoints, like "finish" will still require
more work to migrate breakpoints etc. to the child thread.)
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* breakpoint.c (new_until_break_fsm): Add 'cmd_interp' parameter.
(until_break_fsm_should_stop, until_break_fsm_clean_up): Add
thread parameter.
(until_break_command): Pass command interpreter to thread fsm
ctor.
* cli/cli-interp.c (should_print_stop_to_console): Adjust.
* gdbthread.h (struct thread_control_state) <command_interp>:
Delete field.
* infcall.c (new_call_thread_fsm): Add 'cmd_interp' parameter.
Pass it down.
(call_thread_fsm_should_stop): Add thread parameter.
(call_function_by_hand_dummy): Pass command interpreter to thread
fsm ctor. Pass thread pointer to fsm clean up method.
* infcmd.c: Include interps.h.
(struct step_command_fsm) <thread>: Delete field.
(new_step_command_fsm): Add 'cmd_interp' parameter. Pass it down.
(step_command_fsm_prepare): Remove references to fsm's thread
field.
(step_1): Pass command interpreter to thread
fsm ctor. Pass thread pointer to fsm clean up method.
(step_command_fsm_should_stop, step_command_fsm_clean_up): Add
thread parameter and use it.
(new_until_next_fsm): Add 'cmd_interp' parameter. Pass it down.
(until_next_fsm_should_stop, until_next_fsm_clean_up): Add thread
parameter and use it.
(until_next_command): Pass command interpreter to thread fsm ctor.
(struct finish_command_fsm) <thread>: Delete field.
(finish_command_fsm_ops): Add NULL slot for should_notify_stop.
(new_finish_command_fsm): Add 'cmd_interp' parameter and pass it
down. Remove thread parameter and adjust.
(finish_command_fsm_should_stop, finish_command_fsm_clean_up): Add
thread parameter and use it.
(finish_command): Pass command interpreter to thread fsm ctor.
Don't pass thread.
* infrun.c (follow_fork): Move thread fsm to child fork instead of
command interpreter, only.
(clear_proceed_status_thread): Remove reference to command_interp.
(proceed): Don't record the thread's command interpreter.
(clean_up_just_stopped_threads_fsms): Pass thread to fsm clean_up
method.
(fetch_inferior_event): Pass thread to fsm should_stop method.
* thread-fsm.c (thread_fsm_ctor): Add 'cmd_interp' parameter.
Store it.
(thread_fsm_clean_up, thread_fsm_should_stop): Add thread
parameter and pass it down.
* thread-fsm.h (struct thread_fsm) <command_interp>: New field.
(struct thread_fsm_ops) <clean_up, should_stop>: Add thread
parameter.
(thread_fsm_ctor): Add 'cmd_interp' parameter.
(thread_fsm_clean_up, thread_fsm_should_stop): Add thread
parameter.
* thread.c (thread_cancel_execution_command): Pass thread to
thread fsm clean_up method.
gdb/testsuite/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* gdb.opt/inline-cmds.c: Add "set mi break here" marker.
* gdb.opt/inline-cmds.exp: Add MI tests.
2016-06-21 02:11:53 +02:00
|
|
|
thread_fsm_ctor (&sm->thread_fsm, &call_thread_fsm_ops, cmd_interp);
|
2015-09-09 19:23:24 +02:00
|
|
|
|
|
|
|
sm->return_meta_info.gdbarch = gdbarch;
|
|
|
|
sm->return_meta_info.function = function;
|
|
|
|
sm->return_meta_info.value_type = value_type;
|
|
|
|
sm->return_meta_info.struct_return_p = struct_return_p;
|
|
|
|
sm->return_meta_info.struct_addr = struct_addr;
|
|
|
|
|
Replace the sync_execution global with a new enum prompt_state tristate
When sync_execution (a boolean) is true, it means we're running a
foreground command -- we hide the prompt stop listening to input, give
the inferior the terminal, then go to the event loop waiting for the
target to stop.
With multiple independent UIs, we need to track whether each UI is
synchronously blocked waiting for the target. IOW, if you do
"continue" in one console, that console stops accepting commands, but
you should still be free to type other commands in the others
consoles.
Just simply making sync_execution be per-UI alone not sufficient,
because of this in fetch_inferior_event:
/* If the inferior was in sync execution mode, and now isn't,
restore the prompt (a synchronous execution command has finished,
and we're ready for input). */
if (current_ui->async && was_sync && !sync_execution)
observer_notify_sync_execution_done ();
We'd have to record at entry the "was_sync" state for each UI, not
just of the current UI.
This patch instead replaces the sync_execution flag by a per-UI
tristate flag indicating the command line prompt state:
enum prompt_state
{
/* The command line is blocked simulating synchronous execution.
This is used to implement the foreground execution commands
('run', 'continue', etc.). We won't display the prompt and
accept further commands until the execution is actually over. */
PROMPT_BLOCKED,
/* The command finished; display the prompt before returning back to
the top level. */
PROMPT_NEEDED,
/* We've displayed the prompt already, ready for input. */
PROMPTED,
;
I think the end result is _much_ clearer than the current code, and,
it addresses the original motivation too.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* annotate.c: Include top.h.
(async_background_execution_p): Delete.
(print_value_flags): Check the UI's prompt state rather then
async_background_execution_p.
* event-loop.c (start_event_loop): Set the prompt state to
PROMPT_NEEDED.
* event-top.c (display_gdb_prompt, async_enable_stdin)
(async_disable_stdin): Check the current UI's prompt state instead
of the sync_execution global.
(command_line_handler): Set the prompt state to PROMPT_NEEDED
before running a command, and display the prompt if still needed
afterwards.
* infcall.c (struct call_thread_fsm) <waiting_ui>: New field.
(new_call_thread_fsm): New parameter 'waiting_ui'. Store it.
(call_thread_fsm_should_stop): Set the prompt state to
PROMPT_NEEDED.
(run_inferior_call): Adjust to temporarily set the prompt state to
PROMPT_BLOCKED instead of using the sync_execution global.
(call_function_by_hand_dummy): Pass the current UI to
new_call_thread_fsm.
* infcmd.c: Include top.h.
(continue_1): Check the current UI's prompt state instead of the
sync_execution global.
(continue_command): Validate global execution state before calling
prepare_execution_command.
(step_1): Call all_uis_check_sync_execution_done.
(attach_post_wait): Don't call async_enable_stdin here. Remove
reference to sync_execution.
* infrun.c (sync_execution): Delete global.
(follow_fork_inferior)
(reinstall_readline_callback_handler_cleanup): Check the current
UI's prompt state instead of the sync_execution global.
(check_curr_ui_sync_execution_done)
(all_uis_check_sync_execution_done): New functions.
(fetch_inferior_event): Call all_uis_check_sync_execution_done
instead of trying to determine whether the global sync execution
changed.
(handle_no_resumed): Check the prompt state of all UIs.
(normal_stop): Emit the no unwait-for even to all PROMPT_BLOCKED
UIs. Emit the "Switching to" notification to all UIs. Enable
stdin in all UIs.
* infrun.h (sync_execution): Delete.
(all_uis_check_sync_execution_done): Declare.
* main.c (captured_command_loop): Don't call
interp_pre_command_loop if the prompt is blocked.
(catch_command_errors, catch_command_errors_const): Adjust.
(captured_main): Set the initial prompt state to PROMPT_NEEDED.
* mi/mi-interp.c (display_mi_prompt): Set the prompt state to
PROMPTED.
(mi_interpreter_resume): Don't clear sync_execution. Remove hack
comment.
(mi_execute_command_input_handler): Set the prompt state to
PROMPT_NEEDED before executing the command, and only display the
prompt if the prompt state is PROMPT_NEEDED afterwards.
(mi_on_resume_1): Adjust to check the prompt state.
* target.c (target_terminal_inferior): Adjust to check the prompt
state.
* top.c (wait_sync_command_done, maybe_wait_sync_command_done)
(execute_command): Check the current UI's prompt state instead of
sync_execution.
* top.h (enum prompt_state): New.
(struct ui) <prompt_state>: New field.
(ALL_UIS): New macro.
2016-06-21 02:11:51 +02:00
|
|
|
sm->waiting_ui = waiting_ui;
|
|
|
|
|
2015-09-09 19:23:24 +02:00
|
|
|
return sm;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Implementation of should_stop method for infcalls. */
|
|
|
|
|
|
|
|
static int
|
Push thread->control.command_interp to the struct thread_fsm
I noticed that if we step into an inline function, step_1 never
reaches proceed, and thus nevers sets the thread's
tp->control.command_interp. Because of that,
should_print_stop_to_console fails to determine that is should print
stop output to the console.
The fix is to set the thread's command_interp earlier. However, I
realized that we can move that field to the thread_fsm, given that its
lifetime is exactly the same as thread_fsm. So the patch plumbs all
fsms constructors to take the command interp and store it in the
thread_fsm.
We can see the fix in action, with e.g., the gdb.opt/inline-cmds.exp
test, and issuing a step when stopped at line 67:
&"s\n"
^running
*running,thread-id="all"
(gdb)
~"67\t result = func2 ();\n"
*stopped,reason="end-stepping-range",frame={addr="0x00000000004004d0",func="main",args=[],file="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",fullname="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",line="67"},thread-id="1",stopped-threads="all",core="0"
(gdb)
s
&"s\n"
^running
*running,thread-id="all"
(gdb)
+ ~"func2 () at /home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c:67\n"
+ ~"67\t result = func2 ();\n"
*stopped,reason="end-stepping-range",frame={addr="0x00000000004004d0",func="func2",args=[],file="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",fullname="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",line="67"},thread-id="1",stopped-threads="all",core="0"
(gdb)
(The inline-cmds.exp command is adjusted to exercise this.)
(Due to the follow_fork change, this also fixes "next N" across a fork
with "set follow-fork child" with "set detach-on-fork on". Commands
that rely on internal breakpoints, like "finish" will still require
more work to migrate breakpoints etc. to the child thread.)
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* breakpoint.c (new_until_break_fsm): Add 'cmd_interp' parameter.
(until_break_fsm_should_stop, until_break_fsm_clean_up): Add
thread parameter.
(until_break_command): Pass command interpreter to thread fsm
ctor.
* cli/cli-interp.c (should_print_stop_to_console): Adjust.
* gdbthread.h (struct thread_control_state) <command_interp>:
Delete field.
* infcall.c (new_call_thread_fsm): Add 'cmd_interp' parameter.
Pass it down.
(call_thread_fsm_should_stop): Add thread parameter.
(call_function_by_hand_dummy): Pass command interpreter to thread
fsm ctor. Pass thread pointer to fsm clean up method.
* infcmd.c: Include interps.h.
(struct step_command_fsm) <thread>: Delete field.
(new_step_command_fsm): Add 'cmd_interp' parameter. Pass it down.
(step_command_fsm_prepare): Remove references to fsm's thread
field.
(step_1): Pass command interpreter to thread
fsm ctor. Pass thread pointer to fsm clean up method.
(step_command_fsm_should_stop, step_command_fsm_clean_up): Add
thread parameter and use it.
(new_until_next_fsm): Add 'cmd_interp' parameter. Pass it down.
(until_next_fsm_should_stop, until_next_fsm_clean_up): Add thread
parameter and use it.
(until_next_command): Pass command interpreter to thread fsm ctor.
(struct finish_command_fsm) <thread>: Delete field.
(finish_command_fsm_ops): Add NULL slot for should_notify_stop.
(new_finish_command_fsm): Add 'cmd_interp' parameter and pass it
down. Remove thread parameter and adjust.
(finish_command_fsm_should_stop, finish_command_fsm_clean_up): Add
thread parameter and use it.
(finish_command): Pass command interpreter to thread fsm ctor.
Don't pass thread.
* infrun.c (follow_fork): Move thread fsm to child fork instead of
command interpreter, only.
(clear_proceed_status_thread): Remove reference to command_interp.
(proceed): Don't record the thread's command interpreter.
(clean_up_just_stopped_threads_fsms): Pass thread to fsm clean_up
method.
(fetch_inferior_event): Pass thread to fsm should_stop method.
* thread-fsm.c (thread_fsm_ctor): Add 'cmd_interp' parameter.
Store it.
(thread_fsm_clean_up, thread_fsm_should_stop): Add thread
parameter and pass it down.
* thread-fsm.h (struct thread_fsm) <command_interp>: New field.
(struct thread_fsm_ops) <clean_up, should_stop>: Add thread
parameter.
(thread_fsm_ctor): Add 'cmd_interp' parameter.
(thread_fsm_clean_up, thread_fsm_should_stop): Add thread
parameter.
* thread.c (thread_cancel_execution_command): Pass thread to
thread fsm clean_up method.
gdb/testsuite/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* gdb.opt/inline-cmds.c: Add "set mi break here" marker.
* gdb.opt/inline-cmds.exp: Add MI tests.
2016-06-21 02:11:53 +02:00
|
|
|
call_thread_fsm_should_stop (struct thread_fsm *self,
|
|
|
|
struct thread_info *thread)
|
2015-09-09 19:23:24 +02:00
|
|
|
{
|
|
|
|
struct call_thread_fsm *f = (struct call_thread_fsm *) self;
|
|
|
|
|
|
|
|
if (stop_stack_dummy == STOP_STACK_DUMMY)
|
|
|
|
{
|
|
|
|
/* Done. */
|
|
|
|
thread_fsm_set_finished (self);
|
|
|
|
|
|
|
|
/* Stash the return value before the dummy frame is popped and
|
|
|
|
registers are restored to what they were before the
|
|
|
|
call.. */
|
|
|
|
f->return_value = get_call_return_value (&f->return_meta_info);
|
|
|
|
|
|
|
|
/* Break out of wait_sync_command_done. */
|
2016-09-23 04:50:52 +02:00
|
|
|
scoped_restore save_ui = make_scoped_restore (¤t_ui, f->waiting_ui);
|
Replace the sync_execution global with a new enum prompt_state tristate
When sync_execution (a boolean) is true, it means we're running a
foreground command -- we hide the prompt stop listening to input, give
the inferior the terminal, then go to the event loop waiting for the
target to stop.
With multiple independent UIs, we need to track whether each UI is
synchronously blocked waiting for the target. IOW, if you do
"continue" in one console, that console stops accepting commands, but
you should still be free to type other commands in the others
consoles.
Just simply making sync_execution be per-UI alone not sufficient,
because of this in fetch_inferior_event:
/* If the inferior was in sync execution mode, and now isn't,
restore the prompt (a synchronous execution command has finished,
and we're ready for input). */
if (current_ui->async && was_sync && !sync_execution)
observer_notify_sync_execution_done ();
We'd have to record at entry the "was_sync" state for each UI, not
just of the current UI.
This patch instead replaces the sync_execution flag by a per-UI
tristate flag indicating the command line prompt state:
enum prompt_state
{
/* The command line is blocked simulating synchronous execution.
This is used to implement the foreground execution commands
('run', 'continue', etc.). We won't display the prompt and
accept further commands until the execution is actually over. */
PROMPT_BLOCKED,
/* The command finished; display the prompt before returning back to
the top level. */
PROMPT_NEEDED,
/* We've displayed the prompt already, ready for input. */
PROMPTED,
;
I think the end result is _much_ clearer than the current code, and,
it addresses the original motivation too.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* annotate.c: Include top.h.
(async_background_execution_p): Delete.
(print_value_flags): Check the UI's prompt state rather then
async_background_execution_p.
* event-loop.c (start_event_loop): Set the prompt state to
PROMPT_NEEDED.
* event-top.c (display_gdb_prompt, async_enable_stdin)
(async_disable_stdin): Check the current UI's prompt state instead
of the sync_execution global.
(command_line_handler): Set the prompt state to PROMPT_NEEDED
before running a command, and display the prompt if still needed
afterwards.
* infcall.c (struct call_thread_fsm) <waiting_ui>: New field.
(new_call_thread_fsm): New parameter 'waiting_ui'. Store it.
(call_thread_fsm_should_stop): Set the prompt state to
PROMPT_NEEDED.
(run_inferior_call): Adjust to temporarily set the prompt state to
PROMPT_BLOCKED instead of using the sync_execution global.
(call_function_by_hand_dummy): Pass the current UI to
new_call_thread_fsm.
* infcmd.c: Include top.h.
(continue_1): Check the current UI's prompt state instead of the
sync_execution global.
(continue_command): Validate global execution state before calling
prepare_execution_command.
(step_1): Call all_uis_check_sync_execution_done.
(attach_post_wait): Don't call async_enable_stdin here. Remove
reference to sync_execution.
* infrun.c (sync_execution): Delete global.
(follow_fork_inferior)
(reinstall_readline_callback_handler_cleanup): Check the current
UI's prompt state instead of the sync_execution global.
(check_curr_ui_sync_execution_done)
(all_uis_check_sync_execution_done): New functions.
(fetch_inferior_event): Call all_uis_check_sync_execution_done
instead of trying to determine whether the global sync execution
changed.
(handle_no_resumed): Check the prompt state of all UIs.
(normal_stop): Emit the no unwait-for even to all PROMPT_BLOCKED
UIs. Emit the "Switching to" notification to all UIs. Enable
stdin in all UIs.
* infrun.h (sync_execution): Delete.
(all_uis_check_sync_execution_done): Declare.
* main.c (captured_command_loop): Don't call
interp_pre_command_loop if the prompt is blocked.
(catch_command_errors, catch_command_errors_const): Adjust.
(captured_main): Set the initial prompt state to PROMPT_NEEDED.
* mi/mi-interp.c (display_mi_prompt): Set the prompt state to
PROMPTED.
(mi_interpreter_resume): Don't clear sync_execution. Remove hack
comment.
(mi_execute_command_input_handler): Set the prompt state to
PROMPT_NEEDED before executing the command, and only display the
prompt if the prompt state is PROMPT_NEEDED afterwards.
(mi_on_resume_1): Adjust to check the prompt state.
* target.c (target_terminal_inferior): Adjust to check the prompt
state.
* top.c (wait_sync_command_done, maybe_wait_sync_command_done)
(execute_command): Check the current UI's prompt state instead of
sync_execution.
* top.h (enum prompt_state): New.
(struct ui) <prompt_state>: New field.
(ALL_UIS): New macro.
2016-06-21 02:11:51 +02:00
|
|
|
target_terminal_ours ();
|
|
|
|
f->waiting_ui->prompt_state = PROMPT_NEEDED;
|
2015-09-09 19:23:24 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Implementation of should_notify_stop method for infcalls. */
|
|
|
|
|
|
|
|
static int
|
|
|
|
call_thread_fsm_should_notify_stop (struct thread_fsm *self)
|
|
|
|
{
|
|
|
|
if (thread_fsm_finished_p (self))
|
|
|
|
{
|
|
|
|
/* Infcall succeeded. Be silent and proceed with evaluating the
|
|
|
|
expression. */
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Something wrong happened. E.g., an unexpected breakpoint
|
|
|
|
triggered, or a signal was intercepted. Notify the stop. */
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
/* Subroutine of call_function_by_hand to simplify it.
|
|
|
|
Start up the inferior and wait for it to stop.
|
|
|
|
Return the exception if there's an error, or an exception with
|
|
|
|
reason >= 0 if there's no error.
|
|
|
|
|
|
|
|
This is done inside a TRY_CATCH so the caller needn't worry about
|
|
|
|
thrown errors. The caller should rethrow if there's an error. */
|
|
|
|
|
|
|
|
static struct gdb_exception
|
2015-09-09 19:23:24 +02:00
|
|
|
run_inferior_call (struct call_thread_fsm *sm,
|
|
|
|
struct thread_info *call_thread, CORE_ADDR real_pc)
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
{
|
Split TRY_CATCH into TRY + CATCH
This patch splits the TRY_CATCH macro into three, so that we go from
this:
~~~
volatile gdb_exception ex;
TRY_CATCH (ex, RETURN_MASK_ERROR)
{
}
if (ex.reason < 0)
{
}
~~~
to this:
~~~
TRY
{
}
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
~~~
Thus, we'll be getting rid of the local volatile exception object, and
declaring the caught exception in the catch block.
This allows reimplementing TRY/CATCH in terms of C++ exceptions when
building in C++ mode, while still allowing to build GDB in C mode
(using setjmp/longjmp), as a transition step.
TBC, after this patch, is it _not_ valid to have code between the TRY
and the CATCH blocks, like:
TRY
{
}
// some code here.
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
Just like it isn't valid to do that with C++'s native try/catch.
By switching to creating the exception object inside the CATCH block
scope, we can get rid of all the explicitly allocated volatile
exception objects all over the tree, and map the CATCH block more
directly to C++'s catch blocks.
The majority of the TRY_CATCH -> TRY+CATCH+END_CATCH conversion was
done with a script, rerun from scratch at every rebase, no manual
editing involved. After the mechanical conversion, a few places
needed manual intervention, to fix preexisting cases where we were
using the exception object outside of the TRY_CATCH block, and cases
where we were using "else" after a 'if (ex.reason) < 0)' [a CATCH
after this patch]. The result was folded into this patch so that GDB
still builds at each incremental step.
END_CATCH is necessary for two reasons:
First, because we name the exception object in the CATCH block, which
requires creating a scope, which in turn must be closed somewhere.
Declaring the exception variable in the initializer field of a for
block, like:
#define CATCH(EXCEPTION, mask) \
for (struct gdb_exception EXCEPTION; \
exceptions_state_mc_catch (&EXCEPTION, MASK); \
EXCEPTION = exception_none)
would avoid needing END_CATCH, but alas, in C mode, we build with C90,
which doesn't allow mixed declarations and code.
Second, because when TRY/CATCH are wired to real C++ try/catch, as
long as we need to handle cleanup chains, even if there's no CATCH
block that wants to catch the exception, we need for stop at every
frame in the unwind chain and run cleanups, then rethrow. That will
be done in END_CATCH.
After we require C++, we'll still need TRY/CATCH/END_CATCH until
cleanups are completely phased out -- TRY/CATCH in C++ mode will
save/restore the current cleanup chain, like in C mode, and END_CATCH
catches otherwise uncaugh exceptions, runs cleanups and rethrows, so
that C++ cleanups and exceptions can coexist.
IMO, this still makes the TRY/CATCH code look a bit more like a
newcomer would expect, so IMO worth it even if we weren't considering
C++.
gdb/ChangeLog.
2015-03-07 Pedro Alves <palves@redhat.com>
* common/common-exceptions.c (struct catcher) <exception>: No
longer a pointer to volatile exception. Now an exception value.
<mask>: Delete field.
(exceptions_state_mc_init): Remove all parameters. Adjust.
(exceptions_state_mc): No longer pop the catcher here.
(exceptions_state_mc_catch): New function.
(throw_exception): Adjust.
* common/common-exceptions.h (exceptions_state_mc_init): Remove
all parameters.
(exceptions_state_mc_catch): Declare.
(TRY_CATCH): Rename to ...
(TRY): ... this. Remove EXCEPTION and MASK parameters.
(CATCH, END_CATCH): New.
All callers adjusted.
gdb/gdbserver/ChangeLog:
2015-03-07 Pedro Alves <palves@redhat.com>
Adjust all callers of TRY_CATCH to use TRY/CATCH/END_CATCH
instead.
2015-03-07 16:14:14 +01:00
|
|
|
struct gdb_exception caught_error = exception_none;
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
int saved_in_infcall = call_thread->control.in_infcall;
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
ptid_t call_thread_ptid = call_thread->ptid;
|
Replace the sync_execution global with a new enum prompt_state tristate
When sync_execution (a boolean) is true, it means we're running a
foreground command -- we hide the prompt stop listening to input, give
the inferior the terminal, then go to the event loop waiting for the
target to stop.
With multiple independent UIs, we need to track whether each UI is
synchronously blocked waiting for the target. IOW, if you do
"continue" in one console, that console stops accepting commands, but
you should still be free to type other commands in the others
consoles.
Just simply making sync_execution be per-UI alone not sufficient,
because of this in fetch_inferior_event:
/* If the inferior was in sync execution mode, and now isn't,
restore the prompt (a synchronous execution command has finished,
and we're ready for input). */
if (current_ui->async && was_sync && !sync_execution)
observer_notify_sync_execution_done ();
We'd have to record at entry the "was_sync" state for each UI, not
just of the current UI.
This patch instead replaces the sync_execution flag by a per-UI
tristate flag indicating the command line prompt state:
enum prompt_state
{
/* The command line is blocked simulating synchronous execution.
This is used to implement the foreground execution commands
('run', 'continue', etc.). We won't display the prompt and
accept further commands until the execution is actually over. */
PROMPT_BLOCKED,
/* The command finished; display the prompt before returning back to
the top level. */
PROMPT_NEEDED,
/* We've displayed the prompt already, ready for input. */
PROMPTED,
;
I think the end result is _much_ clearer than the current code, and,
it addresses the original motivation too.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* annotate.c: Include top.h.
(async_background_execution_p): Delete.
(print_value_flags): Check the UI's prompt state rather then
async_background_execution_p.
* event-loop.c (start_event_loop): Set the prompt state to
PROMPT_NEEDED.
* event-top.c (display_gdb_prompt, async_enable_stdin)
(async_disable_stdin): Check the current UI's prompt state instead
of the sync_execution global.
(command_line_handler): Set the prompt state to PROMPT_NEEDED
before running a command, and display the prompt if still needed
afterwards.
* infcall.c (struct call_thread_fsm) <waiting_ui>: New field.
(new_call_thread_fsm): New parameter 'waiting_ui'. Store it.
(call_thread_fsm_should_stop): Set the prompt state to
PROMPT_NEEDED.
(run_inferior_call): Adjust to temporarily set the prompt state to
PROMPT_BLOCKED instead of using the sync_execution global.
(call_function_by_hand_dummy): Pass the current UI to
new_call_thread_fsm.
* infcmd.c: Include top.h.
(continue_1): Check the current UI's prompt state instead of the
sync_execution global.
(continue_command): Validate global execution state before calling
prepare_execution_command.
(step_1): Call all_uis_check_sync_execution_done.
(attach_post_wait): Don't call async_enable_stdin here. Remove
reference to sync_execution.
* infrun.c (sync_execution): Delete global.
(follow_fork_inferior)
(reinstall_readline_callback_handler_cleanup): Check the current
UI's prompt state instead of the sync_execution global.
(check_curr_ui_sync_execution_done)
(all_uis_check_sync_execution_done): New functions.
(fetch_inferior_event): Call all_uis_check_sync_execution_done
instead of trying to determine whether the global sync execution
changed.
(handle_no_resumed): Check the prompt state of all UIs.
(normal_stop): Emit the no unwait-for even to all PROMPT_BLOCKED
UIs. Emit the "Switching to" notification to all UIs. Enable
stdin in all UIs.
* infrun.h (sync_execution): Delete.
(all_uis_check_sync_execution_done): Declare.
* main.c (captured_command_loop): Don't call
interp_pre_command_loop if the prompt is blocked.
(catch_command_errors, catch_command_errors_const): Adjust.
(captured_main): Set the initial prompt state to PROMPT_NEEDED.
* mi/mi-interp.c (display_mi_prompt): Set the prompt state to
PROMPTED.
(mi_interpreter_resume): Don't clear sync_execution. Remove hack
comment.
(mi_execute_command_input_handler): Set the prompt state to
PROMPT_NEEDED before executing the command, and only display the
prompt if the prompt state is PROMPT_NEEDED afterwards.
(mi_on_resume_1): Adjust to check the prompt state.
* target.c (target_terminal_inferior): Adjust to check the prompt
state.
* top.c (wait_sync_command_done, maybe_wait_sync_command_done)
(execute_command): Check the current UI's prompt state instead of
sync_execution.
* top.h (enum prompt_state): New.
(struct ui) <prompt_state>: New field.
(ALL_UIS): New macro.
2016-06-21 02:11:51 +02:00
|
|
|
enum prompt_state saved_prompt_state = current_ui->prompt_state;
|
PR threads/18127 - threads spawned by infcall end up stuck in "running" state
Refs:
https://sourceware.org/ml/gdb/2015-03/msg00024.html
https://sourceware.org/ml/gdb/2015-06/msg00005.html
On GNU/Linux, if an infcall spawns a thread, that thread ends up with
stuck running state. This happens because:
- when linux-nat.c detects a new thread, it marks them as running,
and does not report anything to the core.
- we skip finish_thread_state when the thread that is running the
infcall stops.
As result, that new thread ends up with stuck "running" state, even
though it really is stopped.
On Windows, _all_ threads end up stuck in running state, not just the
one that was spawned. That happens because when a new thread is
detected, unlike linux-nat.c, windows-nat.c reports
TARGET_WAITKIND_SPURIOUS to infrun. It's the fact that that event
does not cause a user-visible stop that triggers the problem. When
the target is re-resumed, we call set_running with a wildcard ptid,
which marks all thread as running. That set_running is not suppressed
because the (leader) thread being resumed does not have in_infcall
set. Later, when the infcall finally finishes successfully, nothing
marks all threads back to stopped.
We can trigger the same problem on all targets by having a thread
other than the one that is running the infcall report a breakpoint hit
to infrun, and then have that breakpoint not cause a stop. That's
what the included test does.
The fix is to stop GDB from suppressing the set_running calls while
doing an infcall, and then set the threads back to stopped when the
call finishes, iff they were originally stopped before the infcall
started. (Note the MI *running/*stopped event suppression isn't
affected.)
Tested on x86_64 GNU/Linux.
gdb/ChangeLog:
2015-06-29 Pedro Alves <palves@redhat.com>
PR threads/18127
* infcall.c (run_inferior_call): On infcall success, if the thread
was marked stopped before, reset it back to stopped.
* infrun.c (resume): Don't suppress the set_running calls when
doing an infcall.
(normal_stop): Only discard the finish_thread_state cleanup if the
infcall succeeded.
gdb/testsuite/ChangeLog:
2015-06-29 Pedro Alves <palves@redhat.com>
PR threads/18127
* gdb.threads/hand-call-new-thread.c: New file.
* gdb.threads/hand-call-new-thread.c: New file.
2015-06-29 17:07:57 +02:00
|
|
|
int was_running = call_thread->state == THREAD_RUNNING;
|
Make the interpreters be per UI
Make each UI have its own interpreter list, top level interpreter,
current interpreter, etc. The "interpreter_async" global is not
really specific to an struct interp (it crosses interpreter-exec ...),
so I moved it to "struct ui" directly, while the other globals were
left hidden in interps.c, opaque to the rest of GDB.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* breakpoint.c (bpstat_do_actions_1): Access the current UI's
async field instead of the interpreter_async global.
* cli/cli-script.c (execute_user_command, while_command)
(if_command, script_from_file): Likewise.
* compile/compile.c: Include top.h instead of interps.h.
(compile_file_command, compile_code_command)
(compile_print_command): Access the current UI's async field
instead of the interpreter_async global.
* guile/guile.c: Include top.h instead of interps.h.
(guile_repl_command, guile_command, gdbscm_execute_gdb_command):
Access the current UI's async field instead of the
interpreter_async global.
* guile/scm-ports.c: Include top.h instead of interps.h.
(ioscm_with_output_to_port_worker): Access the current UI's async
field instead of the interpreter_async global.
* inf-loop.c (inferior_event_handler): Likewise.
* infcall.c (run_inferior_call): Likewise.
* infrun.c (reinstall_readline_callback_handler_cleanup)
(fetch_inferior_event): Likewise.
* interps.c (interpreter_async): Delete.
(struct ui_interp_info): New.
(get_current_interp_info): New function.
(interp_list, current_interpreter, top_level_interpreter_ptr):
Delete.
(interp_add, interp_set, interp_lookup, interp_ui_out)
(current_interp_set_logging, interp_set_temp)
(current_interp_named_p): Adjust to per-UI interpreters.
(command_interpreter): Delete.
(command_interp, current_interp_command_loop, interp_quiet_p)
(interp_exec, interpreter_exec_cmd, interpreter_completer)
(top_level_interpreter, top_level_interpreter_data): Adjust to
per-UI interpreters.
* interps.h (interpreter_async): Delete.
* main.c (captured_command_loop): Access the current UI's async
field instead of the interpreter_async global.
* python/python.c (python_interactive_command, python_command)
(execute_gdb_command): Likewise.
* top.c (maybe_wait_sync_command_done, execute_command_to_string):
Access the current UI's async field instead of the
interpreter_async global.
* top.h (struct tl_interp_info): Forward declare.
(struct ui) <interp_info, async>: New fields.
2016-06-21 02:11:45 +02:00
|
|
|
int saved_ui_async = current_ui->async;
|
Put the inferior's terminal settings in effect while running (fg) infcalls
The "call" and "print" commands presently always run synchronously, in
the foreground, but GDB currently forgets to put the inferior's
terminal settings into effect while running them, on async-capable
targets, resulting in:
(gdb) print func ()
hello world
Program received signal SIGTTOU, Stopped (tty output).
0x000000373bceb8d0 in __libc_tcdrain (fd=1) at ../sysdeps/unix/sysv/linux/tcdrain.c:29
29 return INLINE_SYSCALL (ioctl, 3, fd, TCSBRK, 1);
The program being debugged was signaled while in a function called from GDB.
GDB remains in the frame where the signal was received.
To change this behavior use "set unwindonsignal on".
Evaluation of the expression containing the function
(func) will be abandoned.
When the function is done executing, GDB will silently stop.
(gdb)
That's because target_terminal_inferior skips actually doing anything
if running in the background, and, nothing is setting sync_execution
while running infcalls:
void
target_terminal_inferior (void)
{
/* A background resume (``run&'') should leave GDB in control of the
terminal. Use target_can_async_p, not target_is_async_p, since at
this point the target is not async yet. However, if sync_execution
is not set, we know it will become async prior to resume. */
if (target_can_async_p () && !sync_execution)
return;
This would best be all cleaned up by making GDB not even call
target_terminal_inferior and try to pass the terminal to the inferior
if running in the background, but that's a more invasive fix that is
better done post-7.8.
This was originally caught by a patch later in this series that makes
catch_command_errors use exception_print instead of
print_any_exception. Note that print_flush calls serial_drain_output
while print_any_exception doesnt't have that bit. And,
gdb.gdb/python-selftest.exp does:
gdb_test "call catch_command_errors(execute_command, \"python print 5\", 0, RETURN_MASK_ALL)" \
"Python not initialized.* = 0"
which without this fix results in SIGTTOU...
gdb/
2014-07-14 Pedro Alves <palves@redhat.com>
* infcall.c (run_inferior_call): Set 'sync_execution' while
running the inferior call.
gdb/testsuite/
2014-07-14 Pedro Alves <palves@redhat.com>
* gdb.base/execution-termios.c: New file.
* gdb.base/execution-termios.exp: New file.
2014-07-14 20:55:30 +02:00
|
|
|
|
|
|
|
/* Infcalls run synchronously, in the foreground. */
|
Replace the sync_execution global with a new enum prompt_state tristate
When sync_execution (a boolean) is true, it means we're running a
foreground command -- we hide the prompt stop listening to input, give
the inferior the terminal, then go to the event loop waiting for the
target to stop.
With multiple independent UIs, we need to track whether each UI is
synchronously blocked waiting for the target. IOW, if you do
"continue" in one console, that console stops accepting commands, but
you should still be free to type other commands in the others
consoles.
Just simply making sync_execution be per-UI alone not sufficient,
because of this in fetch_inferior_event:
/* If the inferior was in sync execution mode, and now isn't,
restore the prompt (a synchronous execution command has finished,
and we're ready for input). */
if (current_ui->async && was_sync && !sync_execution)
observer_notify_sync_execution_done ();
We'd have to record at entry the "was_sync" state for each UI, not
just of the current UI.
This patch instead replaces the sync_execution flag by a per-UI
tristate flag indicating the command line prompt state:
enum prompt_state
{
/* The command line is blocked simulating synchronous execution.
This is used to implement the foreground execution commands
('run', 'continue', etc.). We won't display the prompt and
accept further commands until the execution is actually over. */
PROMPT_BLOCKED,
/* The command finished; display the prompt before returning back to
the top level. */
PROMPT_NEEDED,
/* We've displayed the prompt already, ready for input. */
PROMPTED,
;
I think the end result is _much_ clearer than the current code, and,
it addresses the original motivation too.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* annotate.c: Include top.h.
(async_background_execution_p): Delete.
(print_value_flags): Check the UI's prompt state rather then
async_background_execution_p.
* event-loop.c (start_event_loop): Set the prompt state to
PROMPT_NEEDED.
* event-top.c (display_gdb_prompt, async_enable_stdin)
(async_disable_stdin): Check the current UI's prompt state instead
of the sync_execution global.
(command_line_handler): Set the prompt state to PROMPT_NEEDED
before running a command, and display the prompt if still needed
afterwards.
* infcall.c (struct call_thread_fsm) <waiting_ui>: New field.
(new_call_thread_fsm): New parameter 'waiting_ui'. Store it.
(call_thread_fsm_should_stop): Set the prompt state to
PROMPT_NEEDED.
(run_inferior_call): Adjust to temporarily set the prompt state to
PROMPT_BLOCKED instead of using the sync_execution global.
(call_function_by_hand_dummy): Pass the current UI to
new_call_thread_fsm.
* infcmd.c: Include top.h.
(continue_1): Check the current UI's prompt state instead of the
sync_execution global.
(continue_command): Validate global execution state before calling
prepare_execution_command.
(step_1): Call all_uis_check_sync_execution_done.
(attach_post_wait): Don't call async_enable_stdin here. Remove
reference to sync_execution.
* infrun.c (sync_execution): Delete global.
(follow_fork_inferior)
(reinstall_readline_callback_handler_cleanup): Check the current
UI's prompt state instead of the sync_execution global.
(check_curr_ui_sync_execution_done)
(all_uis_check_sync_execution_done): New functions.
(fetch_inferior_event): Call all_uis_check_sync_execution_done
instead of trying to determine whether the global sync execution
changed.
(handle_no_resumed): Check the prompt state of all UIs.
(normal_stop): Emit the no unwait-for even to all PROMPT_BLOCKED
UIs. Emit the "Switching to" notification to all UIs. Enable
stdin in all UIs.
* infrun.h (sync_execution): Delete.
(all_uis_check_sync_execution_done): Declare.
* main.c (captured_command_loop): Don't call
interp_pre_command_loop if the prompt is blocked.
(catch_command_errors, catch_command_errors_const): Adjust.
(captured_main): Set the initial prompt state to PROMPT_NEEDED.
* mi/mi-interp.c (display_mi_prompt): Set the prompt state to
PROMPTED.
(mi_interpreter_resume): Don't clear sync_execution. Remove hack
comment.
(mi_execute_command_input_handler): Set the prompt state to
PROMPT_NEEDED before executing the command, and only display the
prompt if the prompt state is PROMPT_NEEDED afterwards.
(mi_on_resume_1): Adjust to check the prompt state.
* target.c (target_terminal_inferior): Adjust to check the prompt
state.
* top.c (wait_sync_command_done, maybe_wait_sync_command_done)
(execute_command): Check the current UI's prompt state instead of
sync_execution.
* top.h (enum prompt_state): New.
(struct ui) <prompt_state>: New field.
(ALL_UIS): New macro.
2016-06-21 02:11:51 +02:00
|
|
|
current_ui->prompt_state = PROMPT_BLOCKED;
|
Merge async and sync code paths some more
This patch makes the execution control code use largely the same
mechanisms in both sync- and async-capable targets. This means using
continuations and use the event loop to react to target events on sync
targets as well. The trick is to immediately mark infrun's event loop
source after resume instead of calling wait_for_inferior. Then
fetch_inferior_event is adjusted to do a blocking wait on sync
targets.
Tested on x86_64 Fedora 20, native and gdbserver, with and without
"maint set target-async off".
gdb/ChangeLog:
2015-09-09 Pedro Alves <palves@redhat.com>
* breakpoint.c (bpstat_do_actions_1, until_break_command): Don't
check whether the target can async.
* inf-loop.c (inferior_event_handler): Only call target_async if
the target can async.
* infcall.c: Include top.h and interps.h.
(run_inferior_call): For the interpreter to sync mode while
running the infcall. Call wait_sync_command_done instead of
wait_for_inferior plus normal_stop.
* infcmd.c (prepare_execution_command): Don't check whether the
target can async when running in the foreground.
(step_1): Delete synchronous case handling.
(step_once): Always install a continuation, even in sync mode.
(until_next_command, finish_forward): Don't check whether the
target can async.
(attach_command_post_wait, notice_new_inferior): Always install a
continuation, even in sync mode.
* infrun.c (mark_infrun_async_event_handler): New function.
(proceed): In sync mode, mark infrun's event source instead of
waiting for events here.
(fetch_inferior_event): If the target can't async, do a blocking
wait.
(prepare_to_wait): In sync mode, mark infrun's event source.
(infrun_async_inferior_event_handler): No longer bail out if the
target can't async.
* infrun.h (mark_infrun_async_event_handler): New declaration.
* linux-nat.c (linux_nat_wait_1): Remove calls to
set_sigint_trap/clear_sigint_trap.
(linux_nat_terminal_inferior): No longer check whether the target
can async.
* mi/mi-interp.c (mi_on_sync_execution_done): Update and simplify
comment.
(mi_execute_command_input_handler): No longer check whether the
target is async. Update and simplify comment.
* target.c (default_target_wait): New function.
* target.h (struct target_ops) <to_wait>: Now defaults to
default_target_wait.
(default_target_wait): Declare.
* top.c (wait_sync_command_done): New function, factored out from
...
(maybe_wait_sync_command_done): ... this.
* top.h (wait_sync_command_done): Declare.
* target-delegates.c: Regenerate.
2015-09-09 19:23:23 +02:00
|
|
|
/* So that we don't print the prompt prematurely in
|
|
|
|
fetch_inferior_event. */
|
Make the interpreters be per UI
Make each UI have its own interpreter list, top level interpreter,
current interpreter, etc. The "interpreter_async" global is not
really specific to an struct interp (it crosses interpreter-exec ...),
so I moved it to "struct ui" directly, while the other globals were
left hidden in interps.c, opaque to the rest of GDB.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* breakpoint.c (bpstat_do_actions_1): Access the current UI's
async field instead of the interpreter_async global.
* cli/cli-script.c (execute_user_command, while_command)
(if_command, script_from_file): Likewise.
* compile/compile.c: Include top.h instead of interps.h.
(compile_file_command, compile_code_command)
(compile_print_command): Access the current UI's async field
instead of the interpreter_async global.
* guile/guile.c: Include top.h instead of interps.h.
(guile_repl_command, guile_command, gdbscm_execute_gdb_command):
Access the current UI's async field instead of the
interpreter_async global.
* guile/scm-ports.c: Include top.h instead of interps.h.
(ioscm_with_output_to_port_worker): Access the current UI's async
field instead of the interpreter_async global.
* inf-loop.c (inferior_event_handler): Likewise.
* infcall.c (run_inferior_call): Likewise.
* infrun.c (reinstall_readline_callback_handler_cleanup)
(fetch_inferior_event): Likewise.
* interps.c (interpreter_async): Delete.
(struct ui_interp_info): New.
(get_current_interp_info): New function.
(interp_list, current_interpreter, top_level_interpreter_ptr):
Delete.
(interp_add, interp_set, interp_lookup, interp_ui_out)
(current_interp_set_logging, interp_set_temp)
(current_interp_named_p): Adjust to per-UI interpreters.
(command_interpreter): Delete.
(command_interp, current_interp_command_loop, interp_quiet_p)
(interp_exec, interpreter_exec_cmd, interpreter_completer)
(top_level_interpreter, top_level_interpreter_data): Adjust to
per-UI interpreters.
* interps.h (interpreter_async): Delete.
* main.c (captured_command_loop): Access the current UI's async
field instead of the interpreter_async global.
* python/python.c (python_interactive_command, python_command)
(execute_gdb_command): Likewise.
* top.c (maybe_wait_sync_command_done, execute_command_to_string):
Access the current UI's async field instead of the
interpreter_async global.
* top.h (struct tl_interp_info): Forward declare.
(struct ui) <interp_info, async>: New fields.
2016-06-21 02:11:45 +02:00
|
|
|
current_ui->async = 0;
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
|
2016-09-28 23:44:57 +02:00
|
|
|
delete_file_handler (current_ui->input_fd);
|
|
|
|
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
call_thread->control.in_infcall = 1;
|
2009-03-22 18:59:59 +01:00
|
|
|
|
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
|
|
|
clear_proceed_status (0);
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
|
2015-09-09 19:23:24 +02:00
|
|
|
/* Associate the FSM with the thread after clear_proceed_status
|
|
|
|
(otherwise it'd clear this FSM), and before anything throws, so
|
|
|
|
we don't leak it (and any resources it manages). */
|
|
|
|
call_thread->thread_fsm = &sm->thread_fsm;
|
|
|
|
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
disable_watchpoints_before_interactive_call_start ();
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
|
2015-05-13 20:47:33 +02:00
|
|
|
/* We want to print return value, please... */
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
call_thread->control.proceed_to_finish = 1;
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
|
Split TRY_CATCH into TRY + CATCH
This patch splits the TRY_CATCH macro into three, so that we go from
this:
~~~
volatile gdb_exception ex;
TRY_CATCH (ex, RETURN_MASK_ERROR)
{
}
if (ex.reason < 0)
{
}
~~~
to this:
~~~
TRY
{
}
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
~~~
Thus, we'll be getting rid of the local volatile exception object, and
declaring the caught exception in the catch block.
This allows reimplementing TRY/CATCH in terms of C++ exceptions when
building in C++ mode, while still allowing to build GDB in C mode
(using setjmp/longjmp), as a transition step.
TBC, after this patch, is it _not_ valid to have code between the TRY
and the CATCH blocks, like:
TRY
{
}
// some code here.
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
Just like it isn't valid to do that with C++'s native try/catch.
By switching to creating the exception object inside the CATCH block
scope, we can get rid of all the explicitly allocated volatile
exception objects all over the tree, and map the CATCH block more
directly to C++'s catch blocks.
The majority of the TRY_CATCH -> TRY+CATCH+END_CATCH conversion was
done with a script, rerun from scratch at every rebase, no manual
editing involved. After the mechanical conversion, a few places
needed manual intervention, to fix preexisting cases where we were
using the exception object outside of the TRY_CATCH block, and cases
where we were using "else" after a 'if (ex.reason) < 0)' [a CATCH
after this patch]. The result was folded into this patch so that GDB
still builds at each incremental step.
END_CATCH is necessary for two reasons:
First, because we name the exception object in the CATCH block, which
requires creating a scope, which in turn must be closed somewhere.
Declaring the exception variable in the initializer field of a for
block, like:
#define CATCH(EXCEPTION, mask) \
for (struct gdb_exception EXCEPTION; \
exceptions_state_mc_catch (&EXCEPTION, MASK); \
EXCEPTION = exception_none)
would avoid needing END_CATCH, but alas, in C mode, we build with C90,
which doesn't allow mixed declarations and code.
Second, because when TRY/CATCH are wired to real C++ try/catch, as
long as we need to handle cleanup chains, even if there's no CATCH
block that wants to catch the exception, we need for stop at every
frame in the unwind chain and run cleanups, then rethrow. That will
be done in END_CATCH.
After we require C++, we'll still need TRY/CATCH/END_CATCH until
cleanups are completely phased out -- TRY/CATCH in C++ mode will
save/restore the current cleanup chain, like in C mode, and END_CATCH
catches otherwise uncaugh exceptions, runs cleanups and rethrows, so
that C++ cleanups and exceptions can coexist.
IMO, this still makes the TRY/CATCH code look a bit more like a
newcomer would expect, so IMO worth it even if we weren't considering
C++.
gdb/ChangeLog.
2015-03-07 Pedro Alves <palves@redhat.com>
* common/common-exceptions.c (struct catcher) <exception>: No
longer a pointer to volatile exception. Now an exception value.
<mask>: Delete field.
(exceptions_state_mc_init): Remove all parameters. Adjust.
(exceptions_state_mc): No longer pop the catcher here.
(exceptions_state_mc_catch): New function.
(throw_exception): Adjust.
* common/common-exceptions.h (exceptions_state_mc_init): Remove
all parameters.
(exceptions_state_mc_catch): Declare.
(TRY_CATCH): Rename to ...
(TRY): ... this. Remove EXCEPTION and MASK parameters.
(CATCH, END_CATCH): New.
All callers adjusted.
gdb/gdbserver/ChangeLog:
2015-03-07 Pedro Alves <palves@redhat.com>
Adjust all callers of TRY_CATCH to use TRY/CATCH/END_CATCH
instead.
2015-03-07 16:14:14 +01:00
|
|
|
TRY
|
2011-06-06 14:47:07 +02:00
|
|
|
{
|
Remove 'step' parameters from 'proceed' and 'resume'
The "step" parameters of 'proceed' and 'resume' aren't really useful
as indication of whether run control wants to single-step the target,
as that information must already be retrievable from
currently_stepping. In fact, if currently_stepping disagrees with
whether we single-stepped the target, then things break. Thus instead
of having the same information in two places, this patch removes those
parameters.
Setting 'step_start_function' is the only user of proceed's 'step'
argument, other than passing the 'step' argument down to 'resume' and
debug log output. Move that instead to set_step_frame, where we
already set other related fields.
clear_proceed_status keeps its "step" parameter for now because it
needs to know which set of threads should have their state cleared,
and is called before the "stepping_command" flag is set.
Tested on x86_64 Fedora 20, native and gdbserver.
gdb/ChangeLog:
2015-03-24 Pedro Alves <palves@redhat.com>
* breakpoint.c (until_break_command): Adjust call to proceed.
* gdbthread.h (struct thread_control_state) <stepping_command>:
New field.
* infcall.c (run_inferior_call): Adjust call to proceed.
* infcmd.c (run_command_1, proceed_thread_callback, continue_1):
Adjust calls to proceed.
(set_step_frame): Set the current thread's step_start_function
here.
(step_once): Adjust calls to proceed.
(jump_command, signal_command, until_next_command)
(finish_backward, finish_forward, proceed_after_attach_callback)
(attach_command_post_wait): Adjust calls to proceed.
* infrun.c (proceed_after_vfork_done): Adjust call to proceed.
(do_target_resume): New function, factored out from ...
(resume): ... here. Remove 'step' parameter. Instead, check
currently_stepping to determine whether the thread should be
single-stepped.
(proceed): Remove 'step' parameter and don't set the thread's
step_start_function here. Adjust call to 'resume'.
(handle_inferior_event): Adjust calls to 'resume'.
(switch_back_to_stepped_thread): Use do_target_resume instead of
'resume'.
(keep_going): Adjust calls to 'resume'.
* infrun.h (proceed): Remove 'step' parameter.
(resume): Likewise.
* windows-nat.c (do_initial_windows_stuff): Adjust call to
'resume'.
* mi/mi-main.c (proceed_thread): Adjust call to 'proceed'.
2015-03-24 18:50:31 +01:00
|
|
|
proceed (real_pc, GDB_SIGNAL_0);
|
2011-06-06 14:47:07 +02:00
|
|
|
|
|
|
|
/* Inferior function calls are always synchronous, even if the
|
Merge async and sync code paths some more
This patch makes the execution control code use largely the same
mechanisms in both sync- and async-capable targets. This means using
continuations and use the event loop to react to target events on sync
targets as well. The trick is to immediately mark infrun's event loop
source after resume instead of calling wait_for_inferior. Then
fetch_inferior_event is adjusted to do a blocking wait on sync
targets.
Tested on x86_64 Fedora 20, native and gdbserver, with and without
"maint set target-async off".
gdb/ChangeLog:
2015-09-09 Pedro Alves <palves@redhat.com>
* breakpoint.c (bpstat_do_actions_1, until_break_command): Don't
check whether the target can async.
* inf-loop.c (inferior_event_handler): Only call target_async if
the target can async.
* infcall.c: Include top.h and interps.h.
(run_inferior_call): For the interpreter to sync mode while
running the infcall. Call wait_sync_command_done instead of
wait_for_inferior plus normal_stop.
* infcmd.c (prepare_execution_command): Don't check whether the
target can async when running in the foreground.
(step_1): Delete synchronous case handling.
(step_once): Always install a continuation, even in sync mode.
(until_next_command, finish_forward): Don't check whether the
target can async.
(attach_command_post_wait, notice_new_inferior): Always install a
continuation, even in sync mode.
* infrun.c (mark_infrun_async_event_handler): New function.
(proceed): In sync mode, mark infrun's event source instead of
waiting for events here.
(fetch_inferior_event): If the target can't async, do a blocking
wait.
(prepare_to_wait): In sync mode, mark infrun's event source.
(infrun_async_inferior_event_handler): No longer bail out if the
target can't async.
* infrun.h (mark_infrun_async_event_handler): New declaration.
* linux-nat.c (linux_nat_wait_1): Remove calls to
set_sigint_trap/clear_sigint_trap.
(linux_nat_terminal_inferior): No longer check whether the target
can async.
* mi/mi-interp.c (mi_on_sync_execution_done): Update and simplify
comment.
(mi_execute_command_input_handler): No longer check whether the
target is async. Update and simplify comment.
* target.c (default_target_wait): New function.
* target.h (struct target_ops) <to_wait>: Now defaults to
default_target_wait.
(default_target_wait): Declare.
* top.c (wait_sync_command_done): New function, factored out from
...
(maybe_wait_sync_command_done): ... this.
* top.h (wait_sync_command_done): Declare.
* target-delegates.c: Regenerate.
2015-09-09 19:23:23 +02:00
|
|
|
target supports asynchronous execution. */
|
|
|
|
wait_sync_command_done ();
|
2011-06-06 14:47:07 +02:00
|
|
|
}
|
Split TRY_CATCH into TRY + CATCH
This patch splits the TRY_CATCH macro into three, so that we go from
this:
~~~
volatile gdb_exception ex;
TRY_CATCH (ex, RETURN_MASK_ERROR)
{
}
if (ex.reason < 0)
{
}
~~~
to this:
~~~
TRY
{
}
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
~~~
Thus, we'll be getting rid of the local volatile exception object, and
declaring the caught exception in the catch block.
This allows reimplementing TRY/CATCH in terms of C++ exceptions when
building in C++ mode, while still allowing to build GDB in C mode
(using setjmp/longjmp), as a transition step.
TBC, after this patch, is it _not_ valid to have code between the TRY
and the CATCH blocks, like:
TRY
{
}
// some code here.
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
Just like it isn't valid to do that with C++'s native try/catch.
By switching to creating the exception object inside the CATCH block
scope, we can get rid of all the explicitly allocated volatile
exception objects all over the tree, and map the CATCH block more
directly to C++'s catch blocks.
The majority of the TRY_CATCH -> TRY+CATCH+END_CATCH conversion was
done with a script, rerun from scratch at every rebase, no manual
editing involved. After the mechanical conversion, a few places
needed manual intervention, to fix preexisting cases where we were
using the exception object outside of the TRY_CATCH block, and cases
where we were using "else" after a 'if (ex.reason) < 0)' [a CATCH
after this patch]. The result was folded into this patch so that GDB
still builds at each incremental step.
END_CATCH is necessary for two reasons:
First, because we name the exception object in the CATCH block, which
requires creating a scope, which in turn must be closed somewhere.
Declaring the exception variable in the initializer field of a for
block, like:
#define CATCH(EXCEPTION, mask) \
for (struct gdb_exception EXCEPTION; \
exceptions_state_mc_catch (&EXCEPTION, MASK); \
EXCEPTION = exception_none)
would avoid needing END_CATCH, but alas, in C mode, we build with C90,
which doesn't allow mixed declarations and code.
Second, because when TRY/CATCH are wired to real C++ try/catch, as
long as we need to handle cleanup chains, even if there's no CATCH
block that wants to catch the exception, we need for stop at every
frame in the unwind chain and run cleanups, then rethrow. That will
be done in END_CATCH.
After we require C++, we'll still need TRY/CATCH/END_CATCH until
cleanups are completely phased out -- TRY/CATCH in C++ mode will
save/restore the current cleanup chain, like in C mode, and END_CATCH
catches otherwise uncaugh exceptions, runs cleanups and rethrows, so
that C++ cleanups and exceptions can coexist.
IMO, this still makes the TRY/CATCH code look a bit more like a
newcomer would expect, so IMO worth it even if we weren't considering
C++.
gdb/ChangeLog.
2015-03-07 Pedro Alves <palves@redhat.com>
* common/common-exceptions.c (struct catcher) <exception>: No
longer a pointer to volatile exception. Now an exception value.
<mask>: Delete field.
(exceptions_state_mc_init): Remove all parameters. Adjust.
(exceptions_state_mc): No longer pop the catcher here.
(exceptions_state_mc_catch): New function.
(throw_exception): Adjust.
* common/common-exceptions.h (exceptions_state_mc_init): Remove
all parameters.
(exceptions_state_mc_catch): Declare.
(TRY_CATCH): Rename to ...
(TRY): ... this. Remove EXCEPTION and MASK parameters.
(CATCH, END_CATCH): New.
All callers adjusted.
gdb/gdbserver/ChangeLog:
2015-03-07 Pedro Alves <palves@redhat.com>
Adjust all callers of TRY_CATCH to use TRY/CATCH/END_CATCH
instead.
2015-03-07 16:14:14 +01:00
|
|
|
CATCH (e, RETURN_MASK_ALL)
|
|
|
|
{
|
|
|
|
caught_error = e;
|
|
|
|
}
|
|
|
|
END_CATCH
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
|
Replace the sync_execution global with a new enum prompt_state tristate
When sync_execution (a boolean) is true, it means we're running a
foreground command -- we hide the prompt stop listening to input, give
the inferior the terminal, then go to the event loop waiting for the
target to stop.
With multiple independent UIs, we need to track whether each UI is
synchronously blocked waiting for the target. IOW, if you do
"continue" in one console, that console stops accepting commands, but
you should still be free to type other commands in the others
consoles.
Just simply making sync_execution be per-UI alone not sufficient,
because of this in fetch_inferior_event:
/* If the inferior was in sync execution mode, and now isn't,
restore the prompt (a synchronous execution command has finished,
and we're ready for input). */
if (current_ui->async && was_sync && !sync_execution)
observer_notify_sync_execution_done ();
We'd have to record at entry the "was_sync" state for each UI, not
just of the current UI.
This patch instead replaces the sync_execution flag by a per-UI
tristate flag indicating the command line prompt state:
enum prompt_state
{
/* The command line is blocked simulating synchronous execution.
This is used to implement the foreground execution commands
('run', 'continue', etc.). We won't display the prompt and
accept further commands until the execution is actually over. */
PROMPT_BLOCKED,
/* The command finished; display the prompt before returning back to
the top level. */
PROMPT_NEEDED,
/* We've displayed the prompt already, ready for input. */
PROMPTED,
;
I think the end result is _much_ clearer than the current code, and,
it addresses the original motivation too.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* annotate.c: Include top.h.
(async_background_execution_p): Delete.
(print_value_flags): Check the UI's prompt state rather then
async_background_execution_p.
* event-loop.c (start_event_loop): Set the prompt state to
PROMPT_NEEDED.
* event-top.c (display_gdb_prompt, async_enable_stdin)
(async_disable_stdin): Check the current UI's prompt state instead
of the sync_execution global.
(command_line_handler): Set the prompt state to PROMPT_NEEDED
before running a command, and display the prompt if still needed
afterwards.
* infcall.c (struct call_thread_fsm) <waiting_ui>: New field.
(new_call_thread_fsm): New parameter 'waiting_ui'. Store it.
(call_thread_fsm_should_stop): Set the prompt state to
PROMPT_NEEDED.
(run_inferior_call): Adjust to temporarily set the prompt state to
PROMPT_BLOCKED instead of using the sync_execution global.
(call_function_by_hand_dummy): Pass the current UI to
new_call_thread_fsm.
* infcmd.c: Include top.h.
(continue_1): Check the current UI's prompt state instead of the
sync_execution global.
(continue_command): Validate global execution state before calling
prepare_execution_command.
(step_1): Call all_uis_check_sync_execution_done.
(attach_post_wait): Don't call async_enable_stdin here. Remove
reference to sync_execution.
* infrun.c (sync_execution): Delete global.
(follow_fork_inferior)
(reinstall_readline_callback_handler_cleanup): Check the current
UI's prompt state instead of the sync_execution global.
(check_curr_ui_sync_execution_done)
(all_uis_check_sync_execution_done): New functions.
(fetch_inferior_event): Call all_uis_check_sync_execution_done
instead of trying to determine whether the global sync execution
changed.
(handle_no_resumed): Check the prompt state of all UIs.
(normal_stop): Emit the no unwait-for even to all PROMPT_BLOCKED
UIs. Emit the "Switching to" notification to all UIs. Enable
stdin in all UIs.
* infrun.h (sync_execution): Delete.
(all_uis_check_sync_execution_done): Declare.
* main.c (captured_command_loop): Don't call
interp_pre_command_loop if the prompt is blocked.
(catch_command_errors, catch_command_errors_const): Adjust.
(captured_main): Set the initial prompt state to PROMPT_NEEDED.
* mi/mi-interp.c (display_mi_prompt): Set the prompt state to
PROMPTED.
(mi_interpreter_resume): Don't clear sync_execution. Remove hack
comment.
(mi_execute_command_input_handler): Set the prompt state to
PROMPT_NEEDED before executing the command, and only display the
prompt if the prompt state is PROMPT_NEEDED afterwards.
(mi_on_resume_1): Adjust to check the prompt state.
* target.c (target_terminal_inferior): Adjust to check the prompt
state.
* top.c (wait_sync_command_done, maybe_wait_sync_command_done)
(execute_command): Check the current UI's prompt state instead of
sync_execution.
* top.h (enum prompt_state): New.
(struct ui) <prompt_state>: New field.
(ALL_UIS): New macro.
2016-06-21 02:11:51 +02:00
|
|
|
/* If GDB has the prompt blocked before, then ensure that it remains
|
|
|
|
so. normal_stop calls async_enable_stdin, so reset the prompt
|
|
|
|
state again here. In other cases, stdin will be re-enabled by
|
Merge async and sync code paths some more
This patch makes the execution control code use largely the same
mechanisms in both sync- and async-capable targets. This means using
continuations and use the event loop to react to target events on sync
targets as well. The trick is to immediately mark infrun's event loop
source after resume instead of calling wait_for_inferior. Then
fetch_inferior_event is adjusted to do a blocking wait on sync
targets.
Tested on x86_64 Fedora 20, native and gdbserver, with and without
"maint set target-async off".
gdb/ChangeLog:
2015-09-09 Pedro Alves <palves@redhat.com>
* breakpoint.c (bpstat_do_actions_1, until_break_command): Don't
check whether the target can async.
* inf-loop.c (inferior_event_handler): Only call target_async if
the target can async.
* infcall.c: Include top.h and interps.h.
(run_inferior_call): For the interpreter to sync mode while
running the infcall. Call wait_sync_command_done instead of
wait_for_inferior plus normal_stop.
* infcmd.c (prepare_execution_command): Don't check whether the
target can async when running in the foreground.
(step_1): Delete synchronous case handling.
(step_once): Always install a continuation, even in sync mode.
(until_next_command, finish_forward): Don't check whether the
target can async.
(attach_command_post_wait, notice_new_inferior): Always install a
continuation, even in sync mode.
* infrun.c (mark_infrun_async_event_handler): New function.
(proceed): In sync mode, mark infrun's event source instead of
waiting for events here.
(fetch_inferior_event): If the target can't async, do a blocking
wait.
(prepare_to_wait): In sync mode, mark infrun's event source.
(infrun_async_inferior_event_handler): No longer bail out if the
target can't async.
* infrun.h (mark_infrun_async_event_handler): New declaration.
* linux-nat.c (linux_nat_wait_1): Remove calls to
set_sigint_trap/clear_sigint_trap.
(linux_nat_terminal_inferior): No longer check whether the target
can async.
* mi/mi-interp.c (mi_on_sync_execution_done): Update and simplify
comment.
(mi_execute_command_input_handler): No longer check whether the
target is async. Update and simplify comment.
* target.c (default_target_wait): New function.
* target.h (struct target_ops) <to_wait>: Now defaults to
default_target_wait.
(default_target_wait): Declare.
* top.c (wait_sync_command_done): New function, factored out from
...
(maybe_wait_sync_command_done): ... this.
* top.h (wait_sync_command_done): Declare.
* target-delegates.c: Regenerate.
2015-09-09 19:23:23 +02:00
|
|
|
inferior_event_handler, when an exception is thrown. */
|
Replace the sync_execution global with a new enum prompt_state tristate
When sync_execution (a boolean) is true, it means we're running a
foreground command -- we hide the prompt stop listening to input, give
the inferior the terminal, then go to the event loop waiting for the
target to stop.
With multiple independent UIs, we need to track whether each UI is
synchronously blocked waiting for the target. IOW, if you do
"continue" in one console, that console stops accepting commands, but
you should still be free to type other commands in the others
consoles.
Just simply making sync_execution be per-UI alone not sufficient,
because of this in fetch_inferior_event:
/* If the inferior was in sync execution mode, and now isn't,
restore the prompt (a synchronous execution command has finished,
and we're ready for input). */
if (current_ui->async && was_sync && !sync_execution)
observer_notify_sync_execution_done ();
We'd have to record at entry the "was_sync" state for each UI, not
just of the current UI.
This patch instead replaces the sync_execution flag by a per-UI
tristate flag indicating the command line prompt state:
enum prompt_state
{
/* The command line is blocked simulating synchronous execution.
This is used to implement the foreground execution commands
('run', 'continue', etc.). We won't display the prompt and
accept further commands until the execution is actually over. */
PROMPT_BLOCKED,
/* The command finished; display the prompt before returning back to
the top level. */
PROMPT_NEEDED,
/* We've displayed the prompt already, ready for input. */
PROMPTED,
;
I think the end result is _much_ clearer than the current code, and,
it addresses the original motivation too.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* annotate.c: Include top.h.
(async_background_execution_p): Delete.
(print_value_flags): Check the UI's prompt state rather then
async_background_execution_p.
* event-loop.c (start_event_loop): Set the prompt state to
PROMPT_NEEDED.
* event-top.c (display_gdb_prompt, async_enable_stdin)
(async_disable_stdin): Check the current UI's prompt state instead
of the sync_execution global.
(command_line_handler): Set the prompt state to PROMPT_NEEDED
before running a command, and display the prompt if still needed
afterwards.
* infcall.c (struct call_thread_fsm) <waiting_ui>: New field.
(new_call_thread_fsm): New parameter 'waiting_ui'. Store it.
(call_thread_fsm_should_stop): Set the prompt state to
PROMPT_NEEDED.
(run_inferior_call): Adjust to temporarily set the prompt state to
PROMPT_BLOCKED instead of using the sync_execution global.
(call_function_by_hand_dummy): Pass the current UI to
new_call_thread_fsm.
* infcmd.c: Include top.h.
(continue_1): Check the current UI's prompt state instead of the
sync_execution global.
(continue_command): Validate global execution state before calling
prepare_execution_command.
(step_1): Call all_uis_check_sync_execution_done.
(attach_post_wait): Don't call async_enable_stdin here. Remove
reference to sync_execution.
* infrun.c (sync_execution): Delete global.
(follow_fork_inferior)
(reinstall_readline_callback_handler_cleanup): Check the current
UI's prompt state instead of the sync_execution global.
(check_curr_ui_sync_execution_done)
(all_uis_check_sync_execution_done): New functions.
(fetch_inferior_event): Call all_uis_check_sync_execution_done
instead of trying to determine whether the global sync execution
changed.
(handle_no_resumed): Check the prompt state of all UIs.
(normal_stop): Emit the no unwait-for even to all PROMPT_BLOCKED
UIs. Emit the "Switching to" notification to all UIs. Enable
stdin in all UIs.
* infrun.h (sync_execution): Delete.
(all_uis_check_sync_execution_done): Declare.
* main.c (captured_command_loop): Don't call
interp_pre_command_loop if the prompt is blocked.
(catch_command_errors, catch_command_errors_const): Adjust.
(captured_main): Set the initial prompt state to PROMPT_NEEDED.
* mi/mi-interp.c (display_mi_prompt): Set the prompt state to
PROMPTED.
(mi_interpreter_resume): Don't clear sync_execution. Remove hack
comment.
(mi_execute_command_input_handler): Set the prompt state to
PROMPT_NEEDED before executing the command, and only display the
prompt if the prompt state is PROMPT_NEEDED afterwards.
(mi_on_resume_1): Adjust to check the prompt state.
* target.c (target_terminal_inferior): Adjust to check the prompt
state.
* top.c (wait_sync_command_done, maybe_wait_sync_command_done)
(execute_command): Check the current UI's prompt state instead of
sync_execution.
* top.h (enum prompt_state): New.
(struct ui) <prompt_state>: New field.
(ALL_UIS): New macro.
2016-06-21 02:11:51 +02:00
|
|
|
current_ui->prompt_state = saved_prompt_state;
|
2016-09-28 23:44:57 +02:00
|
|
|
if (current_ui->prompt_state == PROMPT_BLOCKED)
|
|
|
|
delete_file_handler (current_ui->input_fd);
|
|
|
|
else
|
|
|
|
ui_register_input_event_handler (current_ui);
|
Make the interpreters be per UI
Make each UI have its own interpreter list, top level interpreter,
current interpreter, etc. The "interpreter_async" global is not
really specific to an struct interp (it crosses interpreter-exec ...),
so I moved it to "struct ui" directly, while the other globals were
left hidden in interps.c, opaque to the rest of GDB.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* breakpoint.c (bpstat_do_actions_1): Access the current UI's
async field instead of the interpreter_async global.
* cli/cli-script.c (execute_user_command, while_command)
(if_command, script_from_file): Likewise.
* compile/compile.c: Include top.h instead of interps.h.
(compile_file_command, compile_code_command)
(compile_print_command): Access the current UI's async field
instead of the interpreter_async global.
* guile/guile.c: Include top.h instead of interps.h.
(guile_repl_command, guile_command, gdbscm_execute_gdb_command):
Access the current UI's async field instead of the
interpreter_async global.
* guile/scm-ports.c: Include top.h instead of interps.h.
(ioscm_with_output_to_port_worker): Access the current UI's async
field instead of the interpreter_async global.
* inf-loop.c (inferior_event_handler): Likewise.
* infcall.c (run_inferior_call): Likewise.
* infrun.c (reinstall_readline_callback_handler_cleanup)
(fetch_inferior_event): Likewise.
* interps.c (interpreter_async): Delete.
(struct ui_interp_info): New.
(get_current_interp_info): New function.
(interp_list, current_interpreter, top_level_interpreter_ptr):
Delete.
(interp_add, interp_set, interp_lookup, interp_ui_out)
(current_interp_set_logging, interp_set_temp)
(current_interp_named_p): Adjust to per-UI interpreters.
(command_interpreter): Delete.
(command_interp, current_interp_command_loop, interp_quiet_p)
(interp_exec, interpreter_exec_cmd, interpreter_completer)
(top_level_interpreter, top_level_interpreter_data): Adjust to
per-UI interpreters.
* interps.h (interpreter_async): Delete.
* main.c (captured_command_loop): Access the current UI's async
field instead of the interpreter_async global.
* python/python.c (python_interactive_command, python_command)
(execute_gdb_command): Likewise.
* top.c (maybe_wait_sync_command_done, execute_command_to_string):
Access the current UI's async field instead of the
interpreter_async global.
* top.h (struct tl_interp_info): Forward declare.
(struct ui) <interp_info, async>: New fields.
2016-06-21 02:11:45 +02:00
|
|
|
current_ui->async = saved_ui_async;
|
Merge async and sync code paths some more
This patch makes the execution control code use largely the same
mechanisms in both sync- and async-capable targets. This means using
continuations and use the event loop to react to target events on sync
targets as well. The trick is to immediately mark infrun's event loop
source after resume instead of calling wait_for_inferior. Then
fetch_inferior_event is adjusted to do a blocking wait on sync
targets.
Tested on x86_64 Fedora 20, native and gdbserver, with and without
"maint set target-async off".
gdb/ChangeLog:
2015-09-09 Pedro Alves <palves@redhat.com>
* breakpoint.c (bpstat_do_actions_1, until_break_command): Don't
check whether the target can async.
* inf-loop.c (inferior_event_handler): Only call target_async if
the target can async.
* infcall.c: Include top.h and interps.h.
(run_inferior_call): For the interpreter to sync mode while
running the infcall. Call wait_sync_command_done instead of
wait_for_inferior plus normal_stop.
* infcmd.c (prepare_execution_command): Don't check whether the
target can async when running in the foreground.
(step_1): Delete synchronous case handling.
(step_once): Always install a continuation, even in sync mode.
(until_next_command, finish_forward): Don't check whether the
target can async.
(attach_command_post_wait, notice_new_inferior): Always install a
continuation, even in sync mode.
* infrun.c (mark_infrun_async_event_handler): New function.
(proceed): In sync mode, mark infrun's event source instead of
waiting for events here.
(fetch_inferior_event): If the target can't async, do a blocking
wait.
(prepare_to_wait): In sync mode, mark infrun's event source.
(infrun_async_inferior_event_handler): No longer bail out if the
target can't async.
* infrun.h (mark_infrun_async_event_handler): New declaration.
* linux-nat.c (linux_nat_wait_1): Remove calls to
set_sigint_trap/clear_sigint_trap.
(linux_nat_terminal_inferior): No longer check whether the target
can async.
* mi/mi-interp.c (mi_on_sync_execution_done): Update and simplify
comment.
(mi_execute_command_input_handler): No longer check whether the
target is async. Update and simplify comment.
* target.c (default_target_wait): New function.
* target.h (struct target_ops) <to_wait>: Now defaults to
default_target_wait.
(default_target_wait): Declare.
* top.c (wait_sync_command_done): New function, factored out from
...
(maybe_wait_sync_command_done): ... this.
* top.h (wait_sync_command_done): Declare.
* target-delegates.c: Regenerate.
2015-09-09 19:23:23 +02:00
|
|
|
|
2009-03-22 18:59:59 +01:00
|
|
|
/* At this point the current thread may have changed. Refresh
|
|
|
|
CALL_THREAD as it could be invalid if its thread has exited. */
|
2009-05-24 23:06:53 +02:00
|
|
|
call_thread = find_thread_ptid (call_thread_ptid);
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
|
PR threads/18127 - threads spawned by infcall end up stuck in "running" state
Refs:
https://sourceware.org/ml/gdb/2015-03/msg00024.html
https://sourceware.org/ml/gdb/2015-06/msg00005.html
On GNU/Linux, if an infcall spawns a thread, that thread ends up with
stuck running state. This happens because:
- when linux-nat.c detects a new thread, it marks them as running,
and does not report anything to the core.
- we skip finish_thread_state when the thread that is running the
infcall stops.
As result, that new thread ends up with stuck "running" state, even
though it really is stopped.
On Windows, _all_ threads end up stuck in running state, not just the
one that was spawned. That happens because when a new thread is
detected, unlike linux-nat.c, windows-nat.c reports
TARGET_WAITKIND_SPURIOUS to infrun. It's the fact that that event
does not cause a user-visible stop that triggers the problem. When
the target is re-resumed, we call set_running with a wildcard ptid,
which marks all thread as running. That set_running is not suppressed
because the (leader) thread being resumed does not have in_infcall
set. Later, when the infcall finally finishes successfully, nothing
marks all threads back to stopped.
We can trigger the same problem on all targets by having a thread
other than the one that is running the infcall report a breakpoint hit
to infrun, and then have that breakpoint not cause a stop. That's
what the included test does.
The fix is to stop GDB from suppressing the set_running calls while
doing an infcall, and then set the threads back to stopped when the
call finishes, iff they were originally stopped before the infcall
started. (Note the MI *running/*stopped event suppression isn't
affected.)
Tested on x86_64 GNU/Linux.
gdb/ChangeLog:
2015-06-29 Pedro Alves <palves@redhat.com>
PR threads/18127
* infcall.c (run_inferior_call): On infcall success, if the thread
was marked stopped before, reset it back to stopped.
* infrun.c (resume): Don't suppress the set_running calls when
doing an infcall.
(normal_stop): Only discard the finish_thread_state cleanup if the
infcall succeeded.
gdb/testsuite/ChangeLog:
2015-06-29 Pedro Alves <palves@redhat.com>
PR threads/18127
* gdb.threads/hand-call-new-thread.c: New file.
* gdb.threads/hand-call-new-thread.c: New file.
2015-06-29 17:07:57 +02:00
|
|
|
/* If the infcall does NOT succeed, normal_stop will have already
|
|
|
|
finished the thread states. However, on success, normal_stop
|
|
|
|
defers here, so that we can set back the thread states to what
|
|
|
|
they were before the call. Note that we must also finish the
|
|
|
|
state of new threads that might have spawned while the call was
|
|
|
|
running. The main cases to handle are:
|
|
|
|
|
|
|
|
- "(gdb) print foo ()", or any other command that evaluates an
|
|
|
|
expression at the prompt. (The thread was marked stopped before.)
|
|
|
|
|
|
|
|
- "(gdb) break foo if return_false()" or similar cases where we
|
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|
|
do an infcall while handling an event (while the thread is still
|
|
|
|
marked running). In this example, whether the condition
|
|
|
|
evaluates true and thus we'll present a user-visible stop is
|
|
|
|
decided elsewhere. */
|
|
|
|
if (!was_running
|
|
|
|
&& ptid_equal (call_thread_ptid, inferior_ptid)
|
|
|
|
&& stop_stack_dummy == STOP_STACK_DUMMY)
|
|
|
|
finish_thread_state (user_visible_resume_ptid (0));
|
|
|
|
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
enable_watchpoints_after_interactive_call_stop ();
|
|
|
|
|
|
|
|
/* Call breakpoint_auto_delete on the current contents of the bpstat
|
|
|
|
of inferior call thread.
|
|
|
|
If all error()s out of proceed ended up calling normal_stop
|
|
|
|
(and perhaps they should; it already does in the special case
|
|
|
|
of error out of resume()), then we wouldn't need this. */
|
Split TRY_CATCH into TRY + CATCH
This patch splits the TRY_CATCH macro into three, so that we go from
this:
~~~
volatile gdb_exception ex;
TRY_CATCH (ex, RETURN_MASK_ERROR)
{
}
if (ex.reason < 0)
{
}
~~~
to this:
~~~
TRY
{
}
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
~~~
Thus, we'll be getting rid of the local volatile exception object, and
declaring the caught exception in the catch block.
This allows reimplementing TRY/CATCH in terms of C++ exceptions when
building in C++ mode, while still allowing to build GDB in C mode
(using setjmp/longjmp), as a transition step.
TBC, after this patch, is it _not_ valid to have code between the TRY
and the CATCH blocks, like:
TRY
{
}
// some code here.
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
Just like it isn't valid to do that with C++'s native try/catch.
By switching to creating the exception object inside the CATCH block
scope, we can get rid of all the explicitly allocated volatile
exception objects all over the tree, and map the CATCH block more
directly to C++'s catch blocks.
The majority of the TRY_CATCH -> TRY+CATCH+END_CATCH conversion was
done with a script, rerun from scratch at every rebase, no manual
editing involved. After the mechanical conversion, a few places
needed manual intervention, to fix preexisting cases where we were
using the exception object outside of the TRY_CATCH block, and cases
where we were using "else" after a 'if (ex.reason) < 0)' [a CATCH
after this patch]. The result was folded into this patch so that GDB
still builds at each incremental step.
END_CATCH is necessary for two reasons:
First, because we name the exception object in the CATCH block, which
requires creating a scope, which in turn must be closed somewhere.
Declaring the exception variable in the initializer field of a for
block, like:
#define CATCH(EXCEPTION, mask) \
for (struct gdb_exception EXCEPTION; \
exceptions_state_mc_catch (&EXCEPTION, MASK); \
EXCEPTION = exception_none)
would avoid needing END_CATCH, but alas, in C mode, we build with C90,
which doesn't allow mixed declarations and code.
Second, because when TRY/CATCH are wired to real C++ try/catch, as
long as we need to handle cleanup chains, even if there's no CATCH
block that wants to catch the exception, we need for stop at every
frame in the unwind chain and run cleanups, then rethrow. That will
be done in END_CATCH.
After we require C++, we'll still need TRY/CATCH/END_CATCH until
cleanups are completely phased out -- TRY/CATCH in C++ mode will
save/restore the current cleanup chain, like in C mode, and END_CATCH
catches otherwise uncaugh exceptions, runs cleanups and rethrows, so
that C++ cleanups and exceptions can coexist.
IMO, this still makes the TRY/CATCH code look a bit more like a
newcomer would expect, so IMO worth it even if we weren't considering
C++.
gdb/ChangeLog.
2015-03-07 Pedro Alves <palves@redhat.com>
* common/common-exceptions.c (struct catcher) <exception>: No
longer a pointer to volatile exception. Now an exception value.
<mask>: Delete field.
(exceptions_state_mc_init): Remove all parameters. Adjust.
(exceptions_state_mc): No longer pop the catcher here.
(exceptions_state_mc_catch): New function.
(throw_exception): Adjust.
* common/common-exceptions.h (exceptions_state_mc_init): Remove
all parameters.
(exceptions_state_mc_catch): Declare.
(TRY_CATCH): Rename to ...
(TRY): ... this. Remove EXCEPTION and MASK parameters.
(CATCH, END_CATCH): New.
All callers adjusted.
gdb/gdbserver/ChangeLog:
2015-03-07 Pedro Alves <palves@redhat.com>
Adjust all callers of TRY_CATCH to use TRY/CATCH/END_CATCH
instead.
2015-03-07 16:14:14 +01:00
|
|
|
if (caught_error.reason < 0)
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
{
|
2009-03-22 18:59:59 +01:00
|
|
|
if (call_thread != NULL)
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
breakpoint_auto_delete (call_thread->control.stop_bpstat);
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
}
|
|
|
|
|
2009-03-22 18:59:59 +01:00
|
|
|
if (call_thread != NULL)
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
call_thread->control.in_infcall = saved_in_infcall;
|
2009-03-22 18:59:59 +01:00
|
|
|
|
Split TRY_CATCH into TRY + CATCH
This patch splits the TRY_CATCH macro into three, so that we go from
this:
~~~
volatile gdb_exception ex;
TRY_CATCH (ex, RETURN_MASK_ERROR)
{
}
if (ex.reason < 0)
{
}
~~~
to this:
~~~
TRY
{
}
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
~~~
Thus, we'll be getting rid of the local volatile exception object, and
declaring the caught exception in the catch block.
This allows reimplementing TRY/CATCH in terms of C++ exceptions when
building in C++ mode, while still allowing to build GDB in C mode
(using setjmp/longjmp), as a transition step.
TBC, after this patch, is it _not_ valid to have code between the TRY
and the CATCH blocks, like:
TRY
{
}
// some code here.
CATCH (ex, RETURN_MASK_ERROR)
{
}
END_CATCH
Just like it isn't valid to do that with C++'s native try/catch.
By switching to creating the exception object inside the CATCH block
scope, we can get rid of all the explicitly allocated volatile
exception objects all over the tree, and map the CATCH block more
directly to C++'s catch blocks.
The majority of the TRY_CATCH -> TRY+CATCH+END_CATCH conversion was
done with a script, rerun from scratch at every rebase, no manual
editing involved. After the mechanical conversion, a few places
needed manual intervention, to fix preexisting cases where we were
using the exception object outside of the TRY_CATCH block, and cases
where we were using "else" after a 'if (ex.reason) < 0)' [a CATCH
after this patch]. The result was folded into this patch so that GDB
still builds at each incremental step.
END_CATCH is necessary for two reasons:
First, because we name the exception object in the CATCH block, which
requires creating a scope, which in turn must be closed somewhere.
Declaring the exception variable in the initializer field of a for
block, like:
#define CATCH(EXCEPTION, mask) \
for (struct gdb_exception EXCEPTION; \
exceptions_state_mc_catch (&EXCEPTION, MASK); \
EXCEPTION = exception_none)
would avoid needing END_CATCH, but alas, in C mode, we build with C90,
which doesn't allow mixed declarations and code.
Second, because when TRY/CATCH are wired to real C++ try/catch, as
long as we need to handle cleanup chains, even if there's no CATCH
block that wants to catch the exception, we need for stop at every
frame in the unwind chain and run cleanups, then rethrow. That will
be done in END_CATCH.
After we require C++, we'll still need TRY/CATCH/END_CATCH until
cleanups are completely phased out -- TRY/CATCH in C++ mode will
save/restore the current cleanup chain, like in C mode, and END_CATCH
catches otherwise uncaugh exceptions, runs cleanups and rethrows, so
that C++ cleanups and exceptions can coexist.
IMO, this still makes the TRY/CATCH code look a bit more like a
newcomer would expect, so IMO worth it even if we weren't considering
C++.
gdb/ChangeLog.
2015-03-07 Pedro Alves <palves@redhat.com>
* common/common-exceptions.c (struct catcher) <exception>: No
longer a pointer to volatile exception. Now an exception value.
<mask>: Delete field.
(exceptions_state_mc_init): Remove all parameters. Adjust.
(exceptions_state_mc): No longer pop the catcher here.
(exceptions_state_mc_catch): New function.
(throw_exception): Adjust.
* common/common-exceptions.h (exceptions_state_mc_init): Remove
all parameters.
(exceptions_state_mc_catch): Declare.
(TRY_CATCH): Rename to ...
(TRY): ... this. Remove EXCEPTION and MASK parameters.
(CATCH, END_CATCH): New.
All callers adjusted.
gdb/gdbserver/ChangeLog:
2015-03-07 Pedro Alves <palves@redhat.com>
Adjust all callers of TRY_CATCH to use TRY/CATCH/END_CATCH
instead.
2015-03-07 16:14:14 +01:00
|
|
|
return caught_error;
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
}
|
|
|
|
|
2010-03-25 21:48:53 +01:00
|
|
|
/* A cleanup function that calls delete_std_terminate_breakpoint. */
|
|
|
|
static void
|
|
|
|
cleanup_delete_std_terminate_breakpoint (void *ignore)
|
|
|
|
{
|
|
|
|
delete_std_terminate_breakpoint ();
|
|
|
|
}
|
|
|
|
|
2014-05-14 22:16:22 +02:00
|
|
|
/* See infcall.h. */
|
|
|
|
|
|
|
|
struct value *
|
Stop assuming no-debug-info functions return int
The fact that GDB defaults to assuming that functions return int, when
it has no debug info for the function has been a recurring source of
user confusion. Recently this came up on the errno pretty printer
discussions. Shortly after, it came up again on IRC, with someone
wondering why does getenv() in GDB return a negative int:
(gdb) p getenv("PATH")
$1 = -6185
This question (with s/getenv/random-other-C-runtime-function) is a FAQ
on IRC.
The reason for the above is:
(gdb) p getenv
$2 = {<text variable, no debug info>} 0x7ffff7751d80 <getenv>
(gdb) ptype getenv
type = int ()
... which means that GDB truncated the 64-bit pointer that is actually
returned from getent to 32-bit, and then sign-extended it:
(gdb) p /x -6185
$6 = 0xffffe7d7
The workaround is to cast the function to the right type, like:
(gdb) p ((char *(*) (const char *)) getenv) ("PATH")
$3 = 0x7fffffffe7d7 "/usr/local/bin:/"...
IMO, we should do better than this.
I see the "assume-int" issue the same way I see printing bogus values
for optimized-out variables instead of "<optimized out>" -- I'd much
rather that the debugger tells me "I don't know" and tells me how to
fix it than showing me bogus misleading results, making me go around
tilting at windmills.
If GDB prints a signed integer when you're expecting a pointer or
aggregate, you at least have some sense that something is off, but
consider the case of the function actually returning a 64-bit integer.
For example, compile this without debug info:
unsigned long long
function ()
{
return 0x7fffffffffffffff;
}
Currently, with pristine GDB, you get:
(gdb) p function ()
$1 = -1 # incorrect
(gdb) p /x function ()
$2 = 0xffffffff # incorrect
maybe after spending a few hours debugging you suspect something is
wrong with that -1, and do:
(gdb) ptype function
type = int ()
and maybe, just maybe, you realize that the function actually returns
unsigned long long. And you try to fix it with:
(gdb) p /x (unsigned long long) function ()
$3 = 0xffffffffffffffff # incorrect
... which still produces the wrong result, because GDB simply applied
int to unsigned long long conversion. Meaning, it sign-extended the
integer that it extracted from the return of the function, to 64-bits.
and then maybe, after asking around on IRC, you realize you have to
cast the function to a pointer of the right type, and call that. It
won't be easy, but after a few missteps, you'll get to it:
..... (gdb) p /x ((unsigned long long(*) ()) function) ()
$666 = 0x7fffffffffffffff # finally! :-)
So to improve on the user experience, this patch does the following
(interrelated) things:
- makes no-debug-info functions no longer default to "int" as return
type. Instead, they're left with NULL/"<unknown return type>"
return type.
(gdb) ptype getenv
type = <unknown return type> ()
- makes calling a function with unknown return type an error.
(gdb) p getenv ("PATH")
'getenv' has unknown return type; cast the call to its declared return type
- and then to make it easier to call the function, makes it possible
to _only_ cast the return of the function to the right type,
instead of having to cast the function to a function pointer:
(gdb) p (char *) getenv ("PATH") # now Just Works
$3 = 0x7fffffffe7d7 "/usr/local/bin:/"...
(gdb) p ((char *(*) (const char *)) getenv) ("PATH") # continues working
$4 = 0x7fffffffe7d7 "/usr/local/bin:/"...
I.e., it makes GDB default the function's return type to the type
of the cast, and the function's parameters to the type of the
arguments passed down.
After this patch, here's what you'll get for the "unsigned long long"
example above:
(gdb) p function ()
'function' has unknown return type; cast the call to its declared return type
(gdb) p /x (unsigned long long) function ()
$4 = 0x7fffffffffffffff # correct!
Note that while with "print" GDB shows the name of the function that
has the problem:
(gdb) p getenv ("PATH")
'getenv' has unknown return type; cast the call to its declared return type
which can by handy in more complicated expressions, "ptype" does not:
(gdb) ptype getenv ("PATH")
function has unknown return type; cast the call to its declared return type
This will be fixed in the next patch.
gdb/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* ada-lang.c (ada_evaluate_subexp) <TYPE_CODE_FUNC>: Don't handle
TYPE_GNU_IFUNC specially here. Throw error if return type is
unknown.
* ada-typeprint.c (print_func_type): Handle functions with unknown
return type.
* c-typeprint.c (c_type_print_base): Handle functions and methods
with unknown return type.
* compile/compile-c-symbols.c (convert_symbol_bmsym)
<mst_text_gnu_ifunc>: Use nodebug_text_gnu_ifunc_symbol.
* compile/compile-c-types.c: Include "objfiles.h".
(convert_func): For functions with unknown return type, warn and
default to int.
* compile/compile-object-run.c (compile_object_run): Adjust call
to call_function_by_hand_dummy.
* elfread.c (elf_gnu_ifunc_resolve_addr): Adjust call to
call_function_by_hand.
* eval.c (evaluate_subexp_standard): Adjust calls to
call_function_by_hand. Handle functions and methods with unknown
return type. Pass expect_type to call_function_by_hand.
* f-typeprint.c (f_type_print_base): Handle functions with unknown
return type.
* gcore.c (call_target_sbrk): Adjust call to
call_function_by_hand.
* gdbtypes.c (objfile_type): Leave nodebug text symbol with NULL
return type instead of int. Make nodebug_text_gnu_ifunc_symbol be
an integer address type instead of nodebug.
* guile/scm-value.c (gdbscm_value_call): Adjust call to
call_function_by_hand.
* infcall.c (error_call_unknown_return_type): New function.
(call_function_by_hand): New "default_return_type" parameter.
Pass it down.
(call_function_by_hand_dummy): New "default_return_type"
parameter. Use it instead of defaulting to int. If there's no
default and the return type is unknown, throw an error. If
there's a default return type, and the called function has no
debug info, then assume the function is prototyped.
* infcall.h (call_function_by_hand, call_function_by_hand_dummy):
New "default_return_type" parameter.
(error_call_unknown_return_type): New declaration.
* linux-fork.c (call_lseek): Cast return type of lseek.
(inferior_call_waitpid, checkpoint_command): Adjust calls to
call_function_by_hand.
* linux-tdep.c (linux_infcall_mmap, linux_infcall_munmap): Adjust
calls to call_function_by_hand.
* m2-typeprint.c (m2_procedure): Handle functions with unknown
return type.
* objc-lang.c (lookup_objc_class, lookup_child_selector)
(value_nsstring, print_object_command): Adjust calls to
call_function_by_hand.
* p-typeprint.c (pascal_type_print_varspec_prefix): Handle
functions with unknown return type.
(pascal_type_print_func_varspec_suffix): New function.
(pascal_type_print_varspec_suffix) <TYPE_CODE_FUNC,
TYPE_CODE_METHOD>: Use it.
* python/py-value.c (valpy_call): Adjust call to
call_function_by_hand.
* rust-lang.c (rust_evaluate_funcall): Adjust call to
call_function_by_hand.
* valarith.c (value_x_binop, value_x_unop): Adjust calls to
call_function_by_hand.
* valops.c (value_allocate_space_in_inferior): Adjust call to
call_function_by_hand.
* typeprint.c (type_print_unknown_return_type): New function.
* typeprint.h (type_print_unknown_return_type): New declaration.
gdb/testsuite/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* gdb.base/break-main-file-remove-fail.exp (test_remove_bp): Cast
return type of munmap in infcall.
* gdb.base/break-probes.exp: Cast return type of foo in infcall.
* gdb.base/checkpoint.exp: Simplify using for loop. Cast return
type of ftell in infcall.
* gdb.base/dprintf-detach.exp (dprintf_detach_test): Cast return
type of getpid in infcall.
* gdb.base/infcall-exec.exp: Cast return type of execlp in
infcall.
* gdb.base/info-os.exp: Cast return type of getpid in infcall.
Bail on failure to extract the pid.
* gdb.base/nodebug.c: #include <stdint.h>.
(multf, multf_noproto, mult, mult_noproto, add8, add8_noproto):
New functions.
* gdb.base/nodebug.exp (test_call_promotion): New procedure.
Change expected output of print/whatis/ptype with functions with
no debug info. Test all supported languages. Call
test_call_promotion.
* gdb.compile/compile.exp: Adjust expected output to expect
warning.
* gdb.threads/siginfo-threads.exp: Likewise.
2017-09-04 21:21:13 +02:00
|
|
|
call_function_by_hand (struct value *function,
|
|
|
|
type *default_return_type,
|
|
|
|
int nargs, struct value **args)
|
2014-05-14 22:16:22 +02:00
|
|
|
{
|
Stop assuming no-debug-info functions return int
The fact that GDB defaults to assuming that functions return int, when
it has no debug info for the function has been a recurring source of
user confusion. Recently this came up on the errno pretty printer
discussions. Shortly after, it came up again on IRC, with someone
wondering why does getenv() in GDB return a negative int:
(gdb) p getenv("PATH")
$1 = -6185
This question (with s/getenv/random-other-C-runtime-function) is a FAQ
on IRC.
The reason for the above is:
(gdb) p getenv
$2 = {<text variable, no debug info>} 0x7ffff7751d80 <getenv>
(gdb) ptype getenv
type = int ()
... which means that GDB truncated the 64-bit pointer that is actually
returned from getent to 32-bit, and then sign-extended it:
(gdb) p /x -6185
$6 = 0xffffe7d7
The workaround is to cast the function to the right type, like:
(gdb) p ((char *(*) (const char *)) getenv) ("PATH")
$3 = 0x7fffffffe7d7 "/usr/local/bin:/"...
IMO, we should do better than this.
I see the "assume-int" issue the same way I see printing bogus values
for optimized-out variables instead of "<optimized out>" -- I'd much
rather that the debugger tells me "I don't know" and tells me how to
fix it than showing me bogus misleading results, making me go around
tilting at windmills.
If GDB prints a signed integer when you're expecting a pointer or
aggregate, you at least have some sense that something is off, but
consider the case of the function actually returning a 64-bit integer.
For example, compile this without debug info:
unsigned long long
function ()
{
return 0x7fffffffffffffff;
}
Currently, with pristine GDB, you get:
(gdb) p function ()
$1 = -1 # incorrect
(gdb) p /x function ()
$2 = 0xffffffff # incorrect
maybe after spending a few hours debugging you suspect something is
wrong with that -1, and do:
(gdb) ptype function
type = int ()
and maybe, just maybe, you realize that the function actually returns
unsigned long long. And you try to fix it with:
(gdb) p /x (unsigned long long) function ()
$3 = 0xffffffffffffffff # incorrect
... which still produces the wrong result, because GDB simply applied
int to unsigned long long conversion. Meaning, it sign-extended the
integer that it extracted from the return of the function, to 64-bits.
and then maybe, after asking around on IRC, you realize you have to
cast the function to a pointer of the right type, and call that. It
won't be easy, but after a few missteps, you'll get to it:
..... (gdb) p /x ((unsigned long long(*) ()) function) ()
$666 = 0x7fffffffffffffff # finally! :-)
So to improve on the user experience, this patch does the following
(interrelated) things:
- makes no-debug-info functions no longer default to "int" as return
type. Instead, they're left with NULL/"<unknown return type>"
return type.
(gdb) ptype getenv
type = <unknown return type> ()
- makes calling a function with unknown return type an error.
(gdb) p getenv ("PATH")
'getenv' has unknown return type; cast the call to its declared return type
- and then to make it easier to call the function, makes it possible
to _only_ cast the return of the function to the right type,
instead of having to cast the function to a function pointer:
(gdb) p (char *) getenv ("PATH") # now Just Works
$3 = 0x7fffffffe7d7 "/usr/local/bin:/"...
(gdb) p ((char *(*) (const char *)) getenv) ("PATH") # continues working
$4 = 0x7fffffffe7d7 "/usr/local/bin:/"...
I.e., it makes GDB default the function's return type to the type
of the cast, and the function's parameters to the type of the
arguments passed down.
After this patch, here's what you'll get for the "unsigned long long"
example above:
(gdb) p function ()
'function' has unknown return type; cast the call to its declared return type
(gdb) p /x (unsigned long long) function ()
$4 = 0x7fffffffffffffff # correct!
Note that while with "print" GDB shows the name of the function that
has the problem:
(gdb) p getenv ("PATH")
'getenv' has unknown return type; cast the call to its declared return type
which can by handy in more complicated expressions, "ptype" does not:
(gdb) ptype getenv ("PATH")
function has unknown return type; cast the call to its declared return type
This will be fixed in the next patch.
gdb/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* ada-lang.c (ada_evaluate_subexp) <TYPE_CODE_FUNC>: Don't handle
TYPE_GNU_IFUNC specially here. Throw error if return type is
unknown.
* ada-typeprint.c (print_func_type): Handle functions with unknown
return type.
* c-typeprint.c (c_type_print_base): Handle functions and methods
with unknown return type.
* compile/compile-c-symbols.c (convert_symbol_bmsym)
<mst_text_gnu_ifunc>: Use nodebug_text_gnu_ifunc_symbol.
* compile/compile-c-types.c: Include "objfiles.h".
(convert_func): For functions with unknown return type, warn and
default to int.
* compile/compile-object-run.c (compile_object_run): Adjust call
to call_function_by_hand_dummy.
* elfread.c (elf_gnu_ifunc_resolve_addr): Adjust call to
call_function_by_hand.
* eval.c (evaluate_subexp_standard): Adjust calls to
call_function_by_hand. Handle functions and methods with unknown
return type. Pass expect_type to call_function_by_hand.
* f-typeprint.c (f_type_print_base): Handle functions with unknown
return type.
* gcore.c (call_target_sbrk): Adjust call to
call_function_by_hand.
* gdbtypes.c (objfile_type): Leave nodebug text symbol with NULL
return type instead of int. Make nodebug_text_gnu_ifunc_symbol be
an integer address type instead of nodebug.
* guile/scm-value.c (gdbscm_value_call): Adjust call to
call_function_by_hand.
* infcall.c (error_call_unknown_return_type): New function.
(call_function_by_hand): New "default_return_type" parameter.
Pass it down.
(call_function_by_hand_dummy): New "default_return_type"
parameter. Use it instead of defaulting to int. If there's no
default and the return type is unknown, throw an error. If
there's a default return type, and the called function has no
debug info, then assume the function is prototyped.
* infcall.h (call_function_by_hand, call_function_by_hand_dummy):
New "default_return_type" parameter.
(error_call_unknown_return_type): New declaration.
* linux-fork.c (call_lseek): Cast return type of lseek.
(inferior_call_waitpid, checkpoint_command): Adjust calls to
call_function_by_hand.
* linux-tdep.c (linux_infcall_mmap, linux_infcall_munmap): Adjust
calls to call_function_by_hand.
* m2-typeprint.c (m2_procedure): Handle functions with unknown
return type.
* objc-lang.c (lookup_objc_class, lookup_child_selector)
(value_nsstring, print_object_command): Adjust calls to
call_function_by_hand.
* p-typeprint.c (pascal_type_print_varspec_prefix): Handle
functions with unknown return type.
(pascal_type_print_func_varspec_suffix): New function.
(pascal_type_print_varspec_suffix) <TYPE_CODE_FUNC,
TYPE_CODE_METHOD>: Use it.
* python/py-value.c (valpy_call): Adjust call to
call_function_by_hand.
* rust-lang.c (rust_evaluate_funcall): Adjust call to
call_function_by_hand.
* valarith.c (value_x_binop, value_x_unop): Adjust calls to
call_function_by_hand.
* valops.c (value_allocate_space_in_inferior): Adjust call to
call_function_by_hand.
* typeprint.c (type_print_unknown_return_type): New function.
* typeprint.h (type_print_unknown_return_type): New declaration.
gdb/testsuite/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* gdb.base/break-main-file-remove-fail.exp (test_remove_bp): Cast
return type of munmap in infcall.
* gdb.base/break-probes.exp: Cast return type of foo in infcall.
* gdb.base/checkpoint.exp: Simplify using for loop. Cast return
type of ftell in infcall.
* gdb.base/dprintf-detach.exp (dprintf_detach_test): Cast return
type of getpid in infcall.
* gdb.base/infcall-exec.exp: Cast return type of execlp in
infcall.
* gdb.base/info-os.exp: Cast return type of getpid in infcall.
Bail on failure to extract the pid.
* gdb.base/nodebug.c: #include <stdint.h>.
(multf, multf_noproto, mult, mult_noproto, add8, add8_noproto):
New functions.
* gdb.base/nodebug.exp (test_call_promotion): New procedure.
Change expected output of print/whatis/ptype with functions with
no debug info. Test all supported languages. Call
test_call_promotion.
* gdb.compile/compile.exp: Adjust expected output to expect
warning.
* gdb.threads/siginfo-threads.exp: Likewise.
2017-09-04 21:21:13 +02:00
|
|
|
return call_function_by_hand_dummy (function, default_return_type,
|
|
|
|
nargs, args, NULL, NULL);
|
2014-05-14 22:16:22 +02:00
|
|
|
}
|
|
|
|
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
/* All this stuff with a dummy frame may seem unnecessarily complicated
|
|
|
|
(why not just save registers in GDB?). The purpose of pushing a dummy
|
|
|
|
frame which looks just like a real frame is so that if you call a
|
|
|
|
function and then hit a breakpoint (get a signal, etc), "backtrace"
|
|
|
|
will look right. Whether the backtrace needs to actually show the
|
|
|
|
stack at the time the inferior function was called is debatable, but
|
|
|
|
it certainly needs to not display garbage. So if you are contemplating
|
|
|
|
making dummy frames be different from normal frames, consider that. */
|
|
|
|
|
|
|
|
/* Perform a function call in the inferior.
|
|
|
|
ARGS is a vector of values of arguments (NARGS of them).
|
|
|
|
FUNCTION is a value, the function to be called.
|
|
|
|
Returns a value representing what the function returned.
|
|
|
|
May fail to return, if a breakpoint or signal is hit
|
|
|
|
during the execution of the function.
|
|
|
|
|
2011-01-09 04:08:57 +01:00
|
|
|
ARGS is modified to contain coerced values. */
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
|
|
|
struct value *
|
2014-05-14 22:16:22 +02:00
|
|
|
call_function_by_hand_dummy (struct value *function,
|
Stop assuming no-debug-info functions return int
The fact that GDB defaults to assuming that functions return int, when
it has no debug info for the function has been a recurring source of
user confusion. Recently this came up on the errno pretty printer
discussions. Shortly after, it came up again on IRC, with someone
wondering why does getenv() in GDB return a negative int:
(gdb) p getenv("PATH")
$1 = -6185
This question (with s/getenv/random-other-C-runtime-function) is a FAQ
on IRC.
The reason for the above is:
(gdb) p getenv
$2 = {<text variable, no debug info>} 0x7ffff7751d80 <getenv>
(gdb) ptype getenv
type = int ()
... which means that GDB truncated the 64-bit pointer that is actually
returned from getent to 32-bit, and then sign-extended it:
(gdb) p /x -6185
$6 = 0xffffe7d7
The workaround is to cast the function to the right type, like:
(gdb) p ((char *(*) (const char *)) getenv) ("PATH")
$3 = 0x7fffffffe7d7 "/usr/local/bin:/"...
IMO, we should do better than this.
I see the "assume-int" issue the same way I see printing bogus values
for optimized-out variables instead of "<optimized out>" -- I'd much
rather that the debugger tells me "I don't know" and tells me how to
fix it than showing me bogus misleading results, making me go around
tilting at windmills.
If GDB prints a signed integer when you're expecting a pointer or
aggregate, you at least have some sense that something is off, but
consider the case of the function actually returning a 64-bit integer.
For example, compile this without debug info:
unsigned long long
function ()
{
return 0x7fffffffffffffff;
}
Currently, with pristine GDB, you get:
(gdb) p function ()
$1 = -1 # incorrect
(gdb) p /x function ()
$2 = 0xffffffff # incorrect
maybe after spending a few hours debugging you suspect something is
wrong with that -1, and do:
(gdb) ptype function
type = int ()
and maybe, just maybe, you realize that the function actually returns
unsigned long long. And you try to fix it with:
(gdb) p /x (unsigned long long) function ()
$3 = 0xffffffffffffffff # incorrect
... which still produces the wrong result, because GDB simply applied
int to unsigned long long conversion. Meaning, it sign-extended the
integer that it extracted from the return of the function, to 64-bits.
and then maybe, after asking around on IRC, you realize you have to
cast the function to a pointer of the right type, and call that. It
won't be easy, but after a few missteps, you'll get to it:
..... (gdb) p /x ((unsigned long long(*) ()) function) ()
$666 = 0x7fffffffffffffff # finally! :-)
So to improve on the user experience, this patch does the following
(interrelated) things:
- makes no-debug-info functions no longer default to "int" as return
type. Instead, they're left with NULL/"<unknown return type>"
return type.
(gdb) ptype getenv
type = <unknown return type> ()
- makes calling a function with unknown return type an error.
(gdb) p getenv ("PATH")
'getenv' has unknown return type; cast the call to its declared return type
- and then to make it easier to call the function, makes it possible
to _only_ cast the return of the function to the right type,
instead of having to cast the function to a function pointer:
(gdb) p (char *) getenv ("PATH") # now Just Works
$3 = 0x7fffffffe7d7 "/usr/local/bin:/"...
(gdb) p ((char *(*) (const char *)) getenv) ("PATH") # continues working
$4 = 0x7fffffffe7d7 "/usr/local/bin:/"...
I.e., it makes GDB default the function's return type to the type
of the cast, and the function's parameters to the type of the
arguments passed down.
After this patch, here's what you'll get for the "unsigned long long"
example above:
(gdb) p function ()
'function' has unknown return type; cast the call to its declared return type
(gdb) p /x (unsigned long long) function ()
$4 = 0x7fffffffffffffff # correct!
Note that while with "print" GDB shows the name of the function that
has the problem:
(gdb) p getenv ("PATH")
'getenv' has unknown return type; cast the call to its declared return type
which can by handy in more complicated expressions, "ptype" does not:
(gdb) ptype getenv ("PATH")
function has unknown return type; cast the call to its declared return type
This will be fixed in the next patch.
gdb/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* ada-lang.c (ada_evaluate_subexp) <TYPE_CODE_FUNC>: Don't handle
TYPE_GNU_IFUNC specially here. Throw error if return type is
unknown.
* ada-typeprint.c (print_func_type): Handle functions with unknown
return type.
* c-typeprint.c (c_type_print_base): Handle functions and methods
with unknown return type.
* compile/compile-c-symbols.c (convert_symbol_bmsym)
<mst_text_gnu_ifunc>: Use nodebug_text_gnu_ifunc_symbol.
* compile/compile-c-types.c: Include "objfiles.h".
(convert_func): For functions with unknown return type, warn and
default to int.
* compile/compile-object-run.c (compile_object_run): Adjust call
to call_function_by_hand_dummy.
* elfread.c (elf_gnu_ifunc_resolve_addr): Adjust call to
call_function_by_hand.
* eval.c (evaluate_subexp_standard): Adjust calls to
call_function_by_hand. Handle functions and methods with unknown
return type. Pass expect_type to call_function_by_hand.
* f-typeprint.c (f_type_print_base): Handle functions with unknown
return type.
* gcore.c (call_target_sbrk): Adjust call to
call_function_by_hand.
* gdbtypes.c (objfile_type): Leave nodebug text symbol with NULL
return type instead of int. Make nodebug_text_gnu_ifunc_symbol be
an integer address type instead of nodebug.
* guile/scm-value.c (gdbscm_value_call): Adjust call to
call_function_by_hand.
* infcall.c (error_call_unknown_return_type): New function.
(call_function_by_hand): New "default_return_type" parameter.
Pass it down.
(call_function_by_hand_dummy): New "default_return_type"
parameter. Use it instead of defaulting to int. If there's no
default and the return type is unknown, throw an error. If
there's a default return type, and the called function has no
debug info, then assume the function is prototyped.
* infcall.h (call_function_by_hand, call_function_by_hand_dummy):
New "default_return_type" parameter.
(error_call_unknown_return_type): New declaration.
* linux-fork.c (call_lseek): Cast return type of lseek.
(inferior_call_waitpid, checkpoint_command): Adjust calls to
call_function_by_hand.
* linux-tdep.c (linux_infcall_mmap, linux_infcall_munmap): Adjust
calls to call_function_by_hand.
* m2-typeprint.c (m2_procedure): Handle functions with unknown
return type.
* objc-lang.c (lookup_objc_class, lookup_child_selector)
(value_nsstring, print_object_command): Adjust calls to
call_function_by_hand.
* p-typeprint.c (pascal_type_print_varspec_prefix): Handle
functions with unknown return type.
(pascal_type_print_func_varspec_suffix): New function.
(pascal_type_print_varspec_suffix) <TYPE_CODE_FUNC,
TYPE_CODE_METHOD>: Use it.
* python/py-value.c (valpy_call): Adjust call to
call_function_by_hand.
* rust-lang.c (rust_evaluate_funcall): Adjust call to
call_function_by_hand.
* valarith.c (value_x_binop, value_x_unop): Adjust calls to
call_function_by_hand.
* valops.c (value_allocate_space_in_inferior): Adjust call to
call_function_by_hand.
* typeprint.c (type_print_unknown_return_type): New function.
* typeprint.h (type_print_unknown_return_type): New declaration.
gdb/testsuite/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* gdb.base/break-main-file-remove-fail.exp (test_remove_bp): Cast
return type of munmap in infcall.
* gdb.base/break-probes.exp: Cast return type of foo in infcall.
* gdb.base/checkpoint.exp: Simplify using for loop. Cast return
type of ftell in infcall.
* gdb.base/dprintf-detach.exp (dprintf_detach_test): Cast return
type of getpid in infcall.
* gdb.base/infcall-exec.exp: Cast return type of execlp in
infcall.
* gdb.base/info-os.exp: Cast return type of getpid in infcall.
Bail on failure to extract the pid.
* gdb.base/nodebug.c: #include <stdint.h>.
(multf, multf_noproto, mult, mult_noproto, add8, add8_noproto):
New functions.
* gdb.base/nodebug.exp (test_call_promotion): New procedure.
Change expected output of print/whatis/ptype with functions with
no debug info. Test all supported languages. Call
test_call_promotion.
* gdb.compile/compile.exp: Adjust expected output to expect
warning.
* gdb.threads/siginfo-threads.exp: Likewise.
2017-09-04 21:21:13 +02:00
|
|
|
type *default_return_type,
|
2014-05-14 22:16:22 +02:00
|
|
|
int nargs, struct value **args,
|
2015-05-13 15:55:09 +02:00
|
|
|
dummy_frame_dtor_ftype *dummy_dtor,
|
2014-05-14 22:16:22 +02:00
|
|
|
void *dummy_dtor_data)
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
{
|
2003-09-14 Andrew Cagney <cagney@redhat.com>
* alpha-nat.c: Remove some occurances of "register".
* alpha-tdep.c, arm-tdep.c, blockframe.c, breakpoint.c: Ditto.
* buildsym.c, c-typeprint.c, c-valprint.c, coffread.c: Ditto.
* corefile.c, cp-support.c, cp-valprint.c, cris-tdep.c: Ditto.
* dbxread.c, dcache.c, dwarf2read.c, elfread.c: Ditto.
* environ.c, eval.c, event-top.c, f-typeprint.c: Ditto.
* f-valprint.c, findvar.c, frame.c, gdbtypes.c: Ditto.
* h8300-tdep.c, hppa-tdep.c, hppab-nat.c, hppah-nat.c: Ditto.
* hppam3-nat.c, hpread.c, ia64-aix-nat.c, ia64-linux-nat.c: Ditto.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Ditto.
* infttrace.c, irix5-nat.c, jv-typeprint.c: Ditto.
* jv-valprint.c, m68k-tdep.c, m68klinux-nat.c, main.c: Ditto.
* mdebugread.c, minsyms.c, mips-linux-tdep.c: Ditto.
* mips-nat.c, mips-tdep.c, mipsread.c, mipsv4-nat.c: Ditto.
* ns32k-tdep.c, objfiles.c, p-typeprint.c: Ditto.
* p-valprint.c, ppc-linux-nat.c, printcmd.c: Ditto.
* remote-mips.c, remote-vx.c, rs6000-nat.c: Ditto.
* rs6000-tdep.c, scm-exp.c, sh-tdep.c, sh64-tdep.c: Ditto.
* solib.c, somread.c, source.c, sparc-tdep.c: Ditto.
* stabsread.c, stack.c, standalone.c, symfile.c: Ditto.
* symmisc.c, symtab.c, top.c, tracepoint.c: Ditto.
* typeprint.c, utils.c, valarith.c, valops.c: Ditto.
* values.c, vax-tdep.c, xcoffread.c: Ditto.
2003-09-14 18:32:14 +02:00
|
|
|
CORE_ADDR sp;
|
2007-09-23 18:25:06 +02:00
|
|
|
struct type *values_type, *target_values_type;
|
2012-06-08 16:24:57 +02:00
|
|
|
unsigned char struct_return = 0, hidden_first_param_p = 0;
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
CORE_ADDR struct_addr = 0;
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
struct infcall_control_state *inf_status;
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
struct cleanup *inf_status_cleanup;
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
struct infcall_suspend_state *caller_state;
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
CORE_ADDR funaddr;
|
|
|
|
CORE_ADDR real_pc;
|
2004-11-12 Andrew Cagney <cagney@gnu.org>
* value.h (VALUE_TYPE, VALUE_NEXT, VALUE_OFFSET, VALUE_BITSIZE)
(VALUE_BITPOS): Delete.
(value_type, value_offset, value_bitsize, value_bitpos): Declare.
* value.c (value_type, value_offset, value_bitpos)
(value_bitsize): New functions. Update references.
* arm-tdep.c, gnu-v3-abi.c, hpacc-abi.c, gnu-v2-abi.c: Update.
* f-valprint.c, cp-valprint.c, c-valprint.c: Update.
* ada-valprint.c, typeprint.c, scm-valprint.c, scm-exp.c: Update.
* p-valprint.c, jv-valprint.c, jv-lang.c, varobj.c: Update.
* objc-lang.c, ada-lang.c, std-regs.c, stack.c: Update.
* infcall.c, linespec.c, printcmd.c, valarith.c: Update.
* valops.c, eval.c, findvar.c, breakpoint.c: Update.
* tracepoint.c, ax-gdb.c, mi/mi-main.c, cli/cli-dump.c:
* rs6000-tdep.c, ppc-sysv-tdep.c: Update.
2004-11-12 22:45:08 +01:00
|
|
|
struct type *ftype = check_typedef (value_type (function));
|
2003-04-23 17:02:02 +02:00
|
|
|
CORE_ADDR bp_addr;
|
2004-08-02 19:39:53 +02:00
|
|
|
struct frame_id dummy_id;
|
2007-09-23 18:25:06 +02:00
|
|
|
struct cleanup *args_cleanup;
|
2007-11-07 07:49:39 +01:00
|
|
|
struct frame_info *frame;
|
|
|
|
struct gdbarch *gdbarch;
|
2010-03-25 21:48:53 +01:00
|
|
|
struct cleanup *terminate_bp_cleanup;
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
ptid_t call_thread_ptid;
|
|
|
|
struct gdb_exception e;
|
|
|
|
char name_buf[RAW_FUNCTION_ADDRESS_SIZE];
|
2014-11-11 14:43:03 +01:00
|
|
|
int stack_temporaries = thread_stack_temporaries_enabled_p (inferior_ptid);
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2006-09-10 17:44:36 +02:00
|
|
|
if (TYPE_CODE (ftype) == TYPE_CODE_PTR)
|
|
|
|
ftype = check_typedef (TYPE_TARGET_TYPE (ftype));
|
|
|
|
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
if (!target_has_execution)
|
|
|
|
noprocess ();
|
|
|
|
|
2010-03-18 02:09:26 +01:00
|
|
|
if (get_traceframe_number () >= 0)
|
|
|
|
error (_("May not call functions while looking at trace frames."));
|
|
|
|
|
2011-05-26 18:23:08 +02:00
|
|
|
if (execution_direction == EXEC_REVERSE)
|
2011-05-30 18:08:28 +02:00
|
|
|
error (_("Cannot call functions in reverse mode."));
|
2011-05-26 18:23:08 +02:00
|
|
|
|
2007-11-07 07:49:39 +01:00
|
|
|
frame = get_current_frame ();
|
|
|
|
gdbarch = get_frame_arch (frame);
|
|
|
|
|
|
|
|
if (!gdbarch_push_dummy_call_p (gdbarch))
|
2008-11-18 01:13:04 +01:00
|
|
|
error (_("This target does not support function calls."));
|
2005-09-02 21:02:46 +02:00
|
|
|
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
/* A cleanup for the inferior status.
|
|
|
|
This is only needed while we're preparing the inferior function call. */
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
inf_status = save_infcall_control_state ();
|
|
|
|
inf_status_cleanup
|
|
|
|
= make_cleanup_restore_infcall_control_state (inf_status);
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
/* Save the caller's registers and other state associated with the
|
|
|
|
inferior itself so that they can be restored once the
|
2004-08-02 19:39:53 +02:00
|
|
|
callee returns. To allow nested calls the registers are (further
|
|
|
|
down) pushed onto a dummy frame stack. Include a cleanup (which
|
|
|
|
is tossed once the regcache has been pushed). */
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
caller_state = save_infcall_suspend_state ();
|
|
|
|
make_cleanup_restore_infcall_suspend_state (caller_state);
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
|
|
|
/* Ensure that the initial SP is correctly aligned. */
|
2003-04-23 22:31:57 +02:00
|
|
|
{
|
2007-11-07 07:49:39 +01:00
|
|
|
CORE_ADDR old_sp = get_frame_sp (frame);
|
2010-05-14 23:25:51 +02:00
|
|
|
|
2007-11-07 07:49:39 +01:00
|
|
|
if (gdbarch_frame_align_p (gdbarch))
|
2003-04-23 22:31:57 +02:00
|
|
|
{
|
2007-11-07 07:49:39 +01:00
|
|
|
sp = gdbarch_frame_align (gdbarch, old_sp);
|
2003-08-18 22:04:56 +02:00
|
|
|
/* NOTE: cagney/2003-08-13: Skip the "red zone". For some
|
|
|
|
ABIs, a function can use memory beyond the inner most stack
|
|
|
|
address. AMD64 called that region the "red zone". Skip at
|
|
|
|
least the "red zone" size before allocating any space on
|
|
|
|
the stack. */
|
2007-11-07 07:49:39 +01:00
|
|
|
if (gdbarch_inner_than (gdbarch, 1, 2))
|
|
|
|
sp -= gdbarch_frame_red_zone_size (gdbarch);
|
2003-08-18 22:04:56 +02:00
|
|
|
else
|
2007-11-07 07:49:39 +01:00
|
|
|
sp += gdbarch_frame_red_zone_size (gdbarch);
|
2003-08-18 22:04:56 +02:00
|
|
|
/* Still aligned? */
|
2007-11-07 07:49:39 +01:00
|
|
|
gdb_assert (sp == gdbarch_frame_align (gdbarch, sp));
|
2003-04-23 22:31:57 +02:00
|
|
|
/* NOTE: cagney/2002-09-18:
|
|
|
|
|
|
|
|
On a RISC architecture, a void parameterless generic dummy
|
|
|
|
frame (i.e., no parameters, no result) typically does not
|
|
|
|
need to push anything the stack and hence can leave SP and
|
2003-07-30 22:59:10 +02:00
|
|
|
FP. Similarly, a frameless (possibly leaf) function does
|
2003-04-23 22:31:57 +02:00
|
|
|
not push anything on the stack and, hence, that too can
|
|
|
|
leave FP and SP unchanged. As a consequence, a sequence of
|
|
|
|
void parameterless generic dummy frame calls to frameless
|
|
|
|
functions will create a sequence of effectively identical
|
|
|
|
frames (SP, FP and TOS and PC the same). This, not
|
|
|
|
suprisingly, results in what appears to be a stack in an
|
|
|
|
infinite loop --- when GDB tries to find a generic dummy
|
|
|
|
frame on the internal dummy frame stack, it will always
|
|
|
|
find the first one.
|
|
|
|
|
|
|
|
To avoid this problem, the code below always grows the
|
|
|
|
stack. That way, two dummy frames can never be identical.
|
|
|
|
It does burn a few bytes of stack but that is a small price
|
|
|
|
to pay :-). */
|
|
|
|
if (sp == old_sp)
|
|
|
|
{
|
2007-11-07 07:49:39 +01:00
|
|
|
if (gdbarch_inner_than (gdbarch, 1, 2))
|
2003-04-23 22:31:57 +02:00
|
|
|
/* Stack grows down. */
|
2007-11-07 07:49:39 +01:00
|
|
|
sp = gdbarch_frame_align (gdbarch, old_sp - 1);
|
2003-04-23 22:31:57 +02:00
|
|
|
else
|
|
|
|
/* Stack grows up. */
|
2007-11-07 07:49:39 +01:00
|
|
|
sp = gdbarch_frame_align (gdbarch, old_sp + 1);
|
2003-04-23 22:31:57 +02:00
|
|
|
}
|
2010-02-28 18:56:37 +01:00
|
|
|
/* SP may have underflown address zero here from OLD_SP. Memory access
|
|
|
|
functions will probably fail in such case but that is a target's
|
|
|
|
problem. */
|
2003-04-23 22:31:57 +02:00
|
|
|
}
|
|
|
|
else
|
2003-06-16 18:47:44 +02:00
|
|
|
/* FIXME: cagney/2002-09-18: Hey, you loose!
|
|
|
|
|
2003-08-18 22:04:56 +02:00
|
|
|
Who knows how badly aligned the SP is!
|
|
|
|
|
|
|
|
If the generic dummy frame ends up empty (because nothing is
|
|
|
|
pushed) GDB won't be able to correctly perform back traces.
|
|
|
|
If a target is having trouble with backtraces, first thing to
|
2011-01-09 04:08:57 +01:00
|
|
|
do is add FRAME_ALIGN() to the architecture vector. If that
|
Convert frame unwinders to use the current frame and
"struct value".
* frame.c (frame_debug): Make global.
(get_frame_id): Pass this frame to unwinder routines.
(frame_pc_unwind): Remove unused unwind->prev_pc support.
(do_frame_register_read): Do not discard the return value of
frame_register_read.
(frame_register_unwind): Remove debug messages. Use
frame_unwind_register_value.
(frame_unwind_register_value, get_frame_register_value): New
functions.
(create_new_frame, get_frame_base_address, get_frame_locals_address)
(get_frame_args_address, get_frame_type): Pass this frame to
unwinder routines.
(frame_cleanup_after_sniffer, frame_prepare_for_sniffer): New
functions.
* frame.h: Update comments.
(frame_debug, frame_unwind_register_value, get_frame_register_value)
(frame_prepare_for_sniffer): Declare.
* frame-unwind.h: Update comments and parameter names.
(default_frame_sniffer): Declare.
(frame_prev_register_ftype): Return a struct value *.
(struct frame_unwind): Remove prev_pc member.
(frame_unwind_sniffer_ftype, frame_unwind_append_sniffer): Delete.
(frame_unwind_append_unwinder, frame_unwind_got_optimized)
(frame_unwind_got_register, frame_unwind_got_memory)
(frame_unwind_got_constant, frame_unwind_got_address): Declare.
* frame-base.h: Update comments and parameter names.
* valops.c (value_fetch_lazy): Use get_frame_register_value. Iterate
if necessary. Add debugging output.
* sentinel-frame.c (sentinel_frame_prev_register)
(sentinel_frame_this_id): Update for new signature.
(sentinel_frame_prev_pc): Delete.
(sentinel_frame_unwinder): Remove prev_pc.
* ia64-tdep.c (ia64_libunwind_frame_unwind): Do not initialize
prev_pc.
* libunwind-frame.c (libunwind_frame_unwind): Likewise.
* frame-unwind.c (struct frame_unwind_table_entry): Remove sniffer.
(frame_unwind_append_sniffer): Delete.
(frame_unwind_append_unwinder): New function.
(frame_unwind_find_by_frame): Take this frame. Only use sniffers
from unwinders. Use frame_prepare_for_sniffer.
(default_frame_sniffer, frame_unwind_got_optimized)
(frame_unwind_got_register, frame_unwind_got_memory)
(frame_unwind_got_constant, frame_unwind_got_address): New functions.
* dummy-frame.c (dummy_frame_sniffer): Use gdbarch_dummy_id.
(dummy_frame_prev_register, dummy_frame_this_id): Update for new
signature.
* gdbarch.sh: Replace unwind_dummy_id with dummy_id.
* gdbarch.c, gdbarch.c: Regenerated.
* frame-base.c (default_frame_base_address)
(default_frame_locals_address, default_frame_args_address): Update
for new signature.
(frame_base_find_by_frame): Pass this frame to unwinder routines.
* infcall.c (call_function_by_hand): Update comments.
* Makefile.in (frame-unwind.o): Update dependencies.
* gdbint.texinfo (Stack Frames): New chapter.
(Algorithms): Move Frames text to the new chapter.
(Target Conditionals): Delete SAVE_DUMMY_FRAME_TOS. Document
gdbarch_dummy_id instead of gdbarch_unwind_dummy_id.
2008-04-30 23:16:46 +02:00
|
|
|
fails, try dummy_id().
|
2003-08-18 22:04:56 +02:00
|
|
|
|
|
|
|
If the ABI specifies a "Red Zone" (see the doco) the code
|
|
|
|
below will quietly trash it. */
|
2003-04-23 22:31:57 +02:00
|
|
|
sp = old_sp;
|
2014-11-11 14:43:03 +01:00
|
|
|
|
|
|
|
/* Skip over the stack temporaries that might have been generated during
|
|
|
|
the evaluation of an expression. */
|
|
|
|
if (stack_temporaries)
|
|
|
|
{
|
|
|
|
struct value *lastval;
|
|
|
|
|
|
|
|
lastval = get_last_thread_stack_temporary (inferior_ptid);
|
|
|
|
if (lastval != NULL)
|
|
|
|
{
|
|
|
|
CORE_ADDR lastval_addr = value_address (lastval);
|
|
|
|
|
|
|
|
if (gdbarch_inner_than (gdbarch, 1, 2))
|
|
|
|
{
|
|
|
|
gdb_assert (sp >= lastval_addr);
|
|
|
|
sp = lastval_addr;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
gdb_assert (sp <= lastval_addr);
|
|
|
|
sp = lastval_addr + TYPE_LENGTH (value_type (lastval));
|
|
|
|
}
|
|
|
|
|
|
|
|
if (gdbarch_frame_align_p (gdbarch))
|
|
|
|
sp = gdbarch_frame_align (gdbarch, sp);
|
|
|
|
}
|
|
|
|
}
|
2003-04-23 22:31:57 +02:00
|
|
|
}
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2004-11-12 Andrew Cagney <cagney@gnu.org>
* value.h (VALUE_TYPE, VALUE_NEXT, VALUE_OFFSET, VALUE_BITSIZE)
(VALUE_BITPOS): Delete.
(value_type, value_offset, value_bitsize, value_bitpos): Declare.
* value.c (value_type, value_offset, value_bitpos)
(value_bitsize): New functions. Update references.
* arm-tdep.c, gnu-v3-abi.c, hpacc-abi.c, gnu-v2-abi.c: Update.
* f-valprint.c, cp-valprint.c, c-valprint.c: Update.
* ada-valprint.c, typeprint.c, scm-valprint.c, scm-exp.c: Update.
* p-valprint.c, jv-valprint.c, jv-lang.c, varobj.c: Update.
* objc-lang.c, ada-lang.c, std-regs.c, stack.c: Update.
* infcall.c, linespec.c, printcmd.c, valarith.c: Update.
* valops.c, eval.c, findvar.c, breakpoint.c: Update.
* tracepoint.c, ax-gdb.c, mi/mi-main.c, cli/cli-dump.c:
* rs6000-tdep.c, ppc-sysv-tdep.c: Update.
2004-11-12 22:45:08 +01:00
|
|
|
funaddr = find_function_addr (function, &values_type);
|
Stop assuming no-debug-info functions return int
The fact that GDB defaults to assuming that functions return int, when
it has no debug info for the function has been a recurring source of
user confusion. Recently this came up on the errno pretty printer
discussions. Shortly after, it came up again on IRC, with someone
wondering why does getenv() in GDB return a negative int:
(gdb) p getenv("PATH")
$1 = -6185
This question (with s/getenv/random-other-C-runtime-function) is a FAQ
on IRC.
The reason for the above is:
(gdb) p getenv
$2 = {<text variable, no debug info>} 0x7ffff7751d80 <getenv>
(gdb) ptype getenv
type = int ()
... which means that GDB truncated the 64-bit pointer that is actually
returned from getent to 32-bit, and then sign-extended it:
(gdb) p /x -6185
$6 = 0xffffe7d7
The workaround is to cast the function to the right type, like:
(gdb) p ((char *(*) (const char *)) getenv) ("PATH")
$3 = 0x7fffffffe7d7 "/usr/local/bin:/"...
IMO, we should do better than this.
I see the "assume-int" issue the same way I see printing bogus values
for optimized-out variables instead of "<optimized out>" -- I'd much
rather that the debugger tells me "I don't know" and tells me how to
fix it than showing me bogus misleading results, making me go around
tilting at windmills.
If GDB prints a signed integer when you're expecting a pointer or
aggregate, you at least have some sense that something is off, but
consider the case of the function actually returning a 64-bit integer.
For example, compile this without debug info:
unsigned long long
function ()
{
return 0x7fffffffffffffff;
}
Currently, with pristine GDB, you get:
(gdb) p function ()
$1 = -1 # incorrect
(gdb) p /x function ()
$2 = 0xffffffff # incorrect
maybe after spending a few hours debugging you suspect something is
wrong with that -1, and do:
(gdb) ptype function
type = int ()
and maybe, just maybe, you realize that the function actually returns
unsigned long long. And you try to fix it with:
(gdb) p /x (unsigned long long) function ()
$3 = 0xffffffffffffffff # incorrect
... which still produces the wrong result, because GDB simply applied
int to unsigned long long conversion. Meaning, it sign-extended the
integer that it extracted from the return of the function, to 64-bits.
and then maybe, after asking around on IRC, you realize you have to
cast the function to a pointer of the right type, and call that. It
won't be easy, but after a few missteps, you'll get to it:
..... (gdb) p /x ((unsigned long long(*) ()) function) ()
$666 = 0x7fffffffffffffff # finally! :-)
So to improve on the user experience, this patch does the following
(interrelated) things:
- makes no-debug-info functions no longer default to "int" as return
type. Instead, they're left with NULL/"<unknown return type>"
return type.
(gdb) ptype getenv
type = <unknown return type> ()
- makes calling a function with unknown return type an error.
(gdb) p getenv ("PATH")
'getenv' has unknown return type; cast the call to its declared return type
- and then to make it easier to call the function, makes it possible
to _only_ cast the return of the function to the right type,
instead of having to cast the function to a function pointer:
(gdb) p (char *) getenv ("PATH") # now Just Works
$3 = 0x7fffffffe7d7 "/usr/local/bin:/"...
(gdb) p ((char *(*) (const char *)) getenv) ("PATH") # continues working
$4 = 0x7fffffffe7d7 "/usr/local/bin:/"...
I.e., it makes GDB default the function's return type to the type
of the cast, and the function's parameters to the type of the
arguments passed down.
After this patch, here's what you'll get for the "unsigned long long"
example above:
(gdb) p function ()
'function' has unknown return type; cast the call to its declared return type
(gdb) p /x (unsigned long long) function ()
$4 = 0x7fffffffffffffff # correct!
Note that while with "print" GDB shows the name of the function that
has the problem:
(gdb) p getenv ("PATH")
'getenv' has unknown return type; cast the call to its declared return type
which can by handy in more complicated expressions, "ptype" does not:
(gdb) ptype getenv ("PATH")
function has unknown return type; cast the call to its declared return type
This will be fixed in the next patch.
gdb/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* ada-lang.c (ada_evaluate_subexp) <TYPE_CODE_FUNC>: Don't handle
TYPE_GNU_IFUNC specially here. Throw error if return type is
unknown.
* ada-typeprint.c (print_func_type): Handle functions with unknown
return type.
* c-typeprint.c (c_type_print_base): Handle functions and methods
with unknown return type.
* compile/compile-c-symbols.c (convert_symbol_bmsym)
<mst_text_gnu_ifunc>: Use nodebug_text_gnu_ifunc_symbol.
* compile/compile-c-types.c: Include "objfiles.h".
(convert_func): For functions with unknown return type, warn and
default to int.
* compile/compile-object-run.c (compile_object_run): Adjust call
to call_function_by_hand_dummy.
* elfread.c (elf_gnu_ifunc_resolve_addr): Adjust call to
call_function_by_hand.
* eval.c (evaluate_subexp_standard): Adjust calls to
call_function_by_hand. Handle functions and methods with unknown
return type. Pass expect_type to call_function_by_hand.
* f-typeprint.c (f_type_print_base): Handle functions with unknown
return type.
* gcore.c (call_target_sbrk): Adjust call to
call_function_by_hand.
* gdbtypes.c (objfile_type): Leave nodebug text symbol with NULL
return type instead of int. Make nodebug_text_gnu_ifunc_symbol be
an integer address type instead of nodebug.
* guile/scm-value.c (gdbscm_value_call): Adjust call to
call_function_by_hand.
* infcall.c (error_call_unknown_return_type): New function.
(call_function_by_hand): New "default_return_type" parameter.
Pass it down.
(call_function_by_hand_dummy): New "default_return_type"
parameter. Use it instead of defaulting to int. If there's no
default and the return type is unknown, throw an error. If
there's a default return type, and the called function has no
debug info, then assume the function is prototyped.
* infcall.h (call_function_by_hand, call_function_by_hand_dummy):
New "default_return_type" parameter.
(error_call_unknown_return_type): New declaration.
* linux-fork.c (call_lseek): Cast return type of lseek.
(inferior_call_waitpid, checkpoint_command): Adjust calls to
call_function_by_hand.
* linux-tdep.c (linux_infcall_mmap, linux_infcall_munmap): Adjust
calls to call_function_by_hand.
* m2-typeprint.c (m2_procedure): Handle functions with unknown
return type.
* objc-lang.c (lookup_objc_class, lookup_child_selector)
(value_nsstring, print_object_command): Adjust calls to
call_function_by_hand.
* p-typeprint.c (pascal_type_print_varspec_prefix): Handle
functions with unknown return type.
(pascal_type_print_func_varspec_suffix): New function.
(pascal_type_print_varspec_suffix) <TYPE_CODE_FUNC,
TYPE_CODE_METHOD>: Use it.
* python/py-value.c (valpy_call): Adjust call to
call_function_by_hand.
* rust-lang.c (rust_evaluate_funcall): Adjust call to
call_function_by_hand.
* valarith.c (value_x_binop, value_x_unop): Adjust calls to
call_function_by_hand.
* valops.c (value_allocate_space_in_inferior): Adjust call to
call_function_by_hand.
* typeprint.c (type_print_unknown_return_type): New function.
* typeprint.h (type_print_unknown_return_type): New declaration.
gdb/testsuite/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* gdb.base/break-main-file-remove-fail.exp (test_remove_bp): Cast
return type of munmap in infcall.
* gdb.base/break-probes.exp: Cast return type of foo in infcall.
* gdb.base/checkpoint.exp: Simplify using for loop. Cast return
type of ftell in infcall.
* gdb.base/dprintf-detach.exp (dprintf_detach_test): Cast return
type of getpid in infcall.
* gdb.base/infcall-exec.exp: Cast return type of execlp in
infcall.
* gdb.base/info-os.exp: Cast return type of getpid in infcall.
Bail on failure to extract the pid.
* gdb.base/nodebug.c: #include <stdint.h>.
(multf, multf_noproto, mult, mult_noproto, add8, add8_noproto):
New functions.
* gdb.base/nodebug.exp (test_call_promotion): New procedure.
Change expected output of print/whatis/ptype with functions with
no debug info. Test all supported languages. Call
test_call_promotion.
* gdb.compile/compile.exp: Adjust expected output to expect
warning.
* gdb.threads/siginfo-threads.exp: Likewise.
2017-09-04 21:21:13 +02:00
|
|
|
if (values_type == NULL)
|
|
|
|
values_type = default_return_type;
|
|
|
|
if (values_type == NULL)
|
|
|
|
{
|
|
|
|
const char *name = get_function_name (funaddr,
|
|
|
|
name_buf, sizeof (name_buf));
|
|
|
|
error (_("'%s' has unknown return type; "
|
|
|
|
"cast the call to its declared return type"),
|
|
|
|
name);
|
|
|
|
}
|
2008-09-11 16:25:04 +02:00
|
|
|
|
2015-07-06 22:05:06 +02:00
|
|
|
values_type = check_typedef (values_type);
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2007-09-23 18:25:06 +02:00
|
|
|
/* Are we returning a value using a structure return (passing a
|
|
|
|
hidden argument pointing to storage) or a normal value return?
|
|
|
|
There are two cases: language-mandated structure return and
|
|
|
|
target ABI structure return. The variable STRUCT_RETURN only
|
|
|
|
describes the latter. The language version is handled by passing
|
|
|
|
the return location as the first parameter to the function,
|
|
|
|
even preceding "this". This is different from the target
|
|
|
|
ABI version, which is target-specific; for instance, on ia64
|
|
|
|
the first argument is passed in out0 but the hidden structure
|
|
|
|
return pointer would normally be passed in r8. */
|
|
|
|
|
2012-06-08 16:24:57 +02:00
|
|
|
if (gdbarch_return_in_first_hidden_param_p (gdbarch, values_type))
|
2007-09-23 18:25:06 +02:00
|
|
|
{
|
2012-06-08 16:24:57 +02:00
|
|
|
hidden_first_param_p = 1;
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2007-09-23 18:25:06 +02:00
|
|
|
/* Tell the target specific argument pushing routine not to
|
|
|
|
expect a value. */
|
2009-07-02 14:42:36 +02:00
|
|
|
target_values_type = builtin_type (gdbarch)->builtin_void;
|
2007-09-23 18:25:06 +02:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2012-05-16 16:35:09 +02:00
|
|
|
struct_return = using_struct_return (gdbarch, function, values_type);
|
2007-09-23 18:25:06 +02:00
|
|
|
target_values_type = values_type;
|
|
|
|
}
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
New python events: inferior call, register/memory changed.
gdb/ChangeLog:
* NEWS: Mention new Python events.
* Makefile.in (SUBDIR_PYTHON_OBS): Add py-infevents.o.
(SUBDIR_PYTHON_SRCS): Add py-infevents.c.
(py-infevents.o): New rule.
* doc/observer.texi (inferior_call_pre, inferior_call_post)
(memory_changed, register_changed): New observers.
* infcall.c (call_function_by_hand): Notify observer before and
after inferior call.
* python/py-event.h (inferior_call_kind): New enum.
(emit_inferior_call_event): New prototype.
(emit_register_changed_event): New prototype.
(emit_memory_changed_event): New prototype.
* python/py-events.h (events_object): New registries
inferior_call, memory_changed and register_changed.
* python/py-evts.c (gdbpy_initialize_py_events): Add the
inferior_call, memory_changed and register_changed registries.
* python/py-infevents.c: New.
* python/py-inferior.c (python_on_inferior_call_pre)
(python_on_inferior_call_post, python_on_register_change)
(python_on_memory_change): New functions.
(gdbpy_initialize_inferior): Attach python handler to new
observers.
* python/py-infthread.c(gdbpy_create_ptid_object): New.
(thpy_get_ptid) Use gdbpy_create_ptid_object.
* python/python-internal.h:
(gdbpy_create_ptid_object)
(gdbpy_initialize_inferior_call_pre_event)
(gdbpy_initialize_inferior_call_post_event)
(gdbpy_initialize_register_changed_event)
(gdbpy_initialize_memory_changed_event): New prototypes.
* python/python.c (_initialize_python): Initialize new events.
* valops.c (value_assign): Notify register_changed observer.
gdb/doc/ChangeLog:
* python.texi (Events In Python): Document new events
InferiorCallPreEvent, InferiorCallPostEvent, MemoryChangedEvent
and RegisterChangedEvent.
gdb/testsuite/ChangeLog:
* gdb.python/py-events.py (inferior_call_handler): New.
(register_changed_handler, memory_changed_handler): New.
(test_events.invoke): Register new handlers.
* gdb.python/py-events.exp: Add tests for inferior call,
memory_changed and register_changed events.
2014-12-02 20:15:29 +01:00
|
|
|
observer_notify_inferior_call_pre (inferior_ptid, funaddr);
|
|
|
|
|
2003-05-03 21:39:23 +02:00
|
|
|
/* Determine the location of the breakpoint (and possibly other
|
|
|
|
stuff) that the called function will return to. The SPARC, for a
|
|
|
|
function returning a structure or union, needs to make space for
|
|
|
|
not just the breakpoint but also an extra word containing the
|
|
|
|
size (?) of the structure being passed. */
|
|
|
|
|
2007-11-07 07:49:39 +01:00
|
|
|
switch (gdbarch_call_dummy_location (gdbarch))
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
{
|
|
|
|
case ON_STACK:
|
2012-07-31 09:33:16 +02:00
|
|
|
{
|
|
|
|
const gdb_byte *bp_bytes;
|
|
|
|
CORE_ADDR bp_addr_as_address;
|
|
|
|
int bp_size;
|
|
|
|
|
|
|
|
/* Be careful BP_ADDR is in inferior PC encoding while
|
|
|
|
BP_ADDR_AS_ADDRESS is a plain memory address. */
|
|
|
|
|
|
|
|
sp = push_dummy_code (gdbarch, sp, funaddr, args, nargs,
|
|
|
|
target_values_type, &real_pc, &bp_addr,
|
|
|
|
get_current_regcache ());
|
|
|
|
|
|
|
|
/* Write a legitimate instruction at the point where the infcall
|
|
|
|
breakpoint is going to be inserted. While this instruction
|
|
|
|
is never going to be executed, a user investigating the
|
|
|
|
memory from GDB would see this instruction instead of random
|
|
|
|
uninitialized bytes. We chose the breakpoint instruction
|
|
|
|
as it may look as the most logical one to the user and also
|
|
|
|
valgrind 3.7.0 needs it for proper vgdb inferior calls.
|
|
|
|
|
|
|
|
If software breakpoints are unsupported for this target we
|
|
|
|
leave the user visible memory content uninitialized. */
|
|
|
|
|
|
|
|
bp_addr_as_address = bp_addr;
|
|
|
|
bp_bytes = gdbarch_breakpoint_from_pc (gdbarch, &bp_addr_as_address,
|
|
|
|
&bp_size);
|
|
|
|
if (bp_bytes != NULL)
|
|
|
|
write_memory (bp_addr_as_address, bp_bytes, bp_size);
|
|
|
|
}
|
2003-05-03 21:39:23 +02:00
|
|
|
break;
|
2012-01-04 14:51:36 +01:00
|
|
|
case AT_ENTRY_POINT:
|
|
|
|
{
|
|
|
|
CORE_ADDR dummy_addr;
|
|
|
|
|
|
|
|
real_pc = funaddr;
|
|
|
|
dummy_addr = entry_point_address ();
|
2012-07-31 09:33:16 +02:00
|
|
|
|
2012-01-04 14:51:36 +01:00
|
|
|
/* A call dummy always consists of just a single breakpoint, so
|
2012-07-31 09:33:16 +02:00
|
|
|
its address is the same as the address of the dummy.
|
|
|
|
|
|
|
|
The actual breakpoint is inserted separatly so there is no need to
|
|
|
|
write that out. */
|
2012-01-04 14:51:36 +01:00
|
|
|
bp_addr = dummy_addr;
|
|
|
|
break;
|
|
|
|
}
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
default:
|
2005-02-11 Andrew Cagney <cagney@gnu.org>
Mark up error_no_arg, query, perror_with_name, complaint, and
internal_error.
* breakpoint.c, cp-abi.c, cp-namespace.c, cp-support.c: Update.
* cris-tdep.c, dbxread.c, dictionary.c, dsrec.c: Update.
* dummy-frame.c, dve3900-rom.c, dwarf2-frame.c, dwarf2expr.c: Update.
* dwarf2read.c, dwarfread.c, elfread.c, event-loop.c: Update.
* exceptions.c, exec.c, f-lang.c, findvar.c, fork-child.c: Update.
* frame-unwind.c, frame.c, frv-linux-tdep.c, frv-tdep.c: Update.
* gdb_assert.h, gdbarch.c, gdbtypes.c, gnu-nat.c: Update.
* go32-nat.c, hppa-tdep.c, hppabsd-nat.c, hpread.c: Update.
* i386-linux-nat.c, i386-nat.c, i386-tdep.c, i386bsd-nat.c: Update.
* i386fbsd-nat.c, inf-ptrace.c, inf-ttrace.c, infcall.c: Update.
* infcmd.c, inflow.c, infptrace.c, infrun.c, inftarg.c: Update.
* interps.c, language.c, linespec.c, linux-nat.c: Update.
* m32r-linux-nat.c, m68k-tdep.c, m68kbsd-nat.c: Update.
* m68klinux-nat.c, m88kbsd-nat.c, macroexp.c, macroscope.c: Update.
* macrotab.c, maint.c, mdebugread.c, memattr.c: Update.
* mips-linux-tdep.c, mips-tdep.c, mips64obsd-nat.c: Update.
* mipsnbsd-nat.c, mn10300-tdep.c, monitor.c, nto-procfs.c: Update.
* objc-lang.c, objfiles.c, objfiles.h, ocd.c, osabi.c: Update.
* parse.c, ppc-bdm.c, ppc-linux-nat.c, ppc-sysv-tdep.c: Update.
* ppcnbsd-nat.c, ppcobsd-nat.c, printcmd.c, procfs.c: Update.
* regcache.c, reggroups.c, remote-e7000.c, remote-mips.c: Update.
* remote-rdp.c, remote-sds.c, remote-sim.c, remote-st.c: Update.
* remote-utils.c, remote.c, rs6000-nat.c, rs6000-tdep.c: Update.
* s390-nat.c, s390-tdep.c, sentinel-frame.c, serial.c: Update.
* sh-tdep.c, sh3-rom.c, sh64-tdep.c, shnbsd-nat.c: Update.
* solib-aix5.c, solib-svr4.c, solib.c, source.c: Update.
* sparc-nat.c, stabsread.c, stack.c, symfile.c, symtab.c: Update.
* symtab.h, target.c, tracepoint.c, ui-file.c, ui-out.c: Update.
* utils.c, valops.c, valprint.c, vax-nat.c, vaxbsd-nat.c: Update.
* win32-nat.c, xcoffread.c, xstormy16-tdep.c: Update.
* cli/cli-cmds.c, cli/cli-logging.c, cli/cli-script.c: Update.
* cli/cli-setshow.c, mi/mi-cmd-break.c, mi/mi-cmds.c: Update.
* mi/mi-console.c, mi/mi-getopt.c, mi/mi-out.c: Update.
* tui/tui-file.c, tui/tui-interp.c: Update.
2005-02-11 19:13:55 +01:00
|
|
|
internal_error (__FILE__, __LINE__, _("bad switch"));
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
if (nargs < TYPE_NFIELDS (ftype))
|
2008-11-18 01:13:04 +01:00
|
|
|
error (_("Too few arguments in function call."));
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2003-04-23 22:31:57 +02:00
|
|
|
{
|
|
|
|
int i;
|
2010-05-14 23:25:51 +02:00
|
|
|
|
2003-04-23 22:31:57 +02:00
|
|
|
for (i = nargs - 1; i >= 0; i--)
|
|
|
|
{
|
|
|
|
int prototyped;
|
|
|
|
struct type *param_type;
|
|
|
|
|
|
|
|
/* FIXME drow/2002-05-31: Should just always mark methods as
|
|
|
|
prototyped. Can we respect TYPE_VARARGS? Probably not. */
|
|
|
|
if (TYPE_CODE (ftype) == TYPE_CODE_METHOD)
|
|
|
|
prototyped = 1;
|
Stop assuming no-debug-info functions return int
The fact that GDB defaults to assuming that functions return int, when
it has no debug info for the function has been a recurring source of
user confusion. Recently this came up on the errno pretty printer
discussions. Shortly after, it came up again on IRC, with someone
wondering why does getenv() in GDB return a negative int:
(gdb) p getenv("PATH")
$1 = -6185
This question (with s/getenv/random-other-C-runtime-function) is a FAQ
on IRC.
The reason for the above is:
(gdb) p getenv
$2 = {<text variable, no debug info>} 0x7ffff7751d80 <getenv>
(gdb) ptype getenv
type = int ()
... which means that GDB truncated the 64-bit pointer that is actually
returned from getent to 32-bit, and then sign-extended it:
(gdb) p /x -6185
$6 = 0xffffe7d7
The workaround is to cast the function to the right type, like:
(gdb) p ((char *(*) (const char *)) getenv) ("PATH")
$3 = 0x7fffffffe7d7 "/usr/local/bin:/"...
IMO, we should do better than this.
I see the "assume-int" issue the same way I see printing bogus values
for optimized-out variables instead of "<optimized out>" -- I'd much
rather that the debugger tells me "I don't know" and tells me how to
fix it than showing me bogus misleading results, making me go around
tilting at windmills.
If GDB prints a signed integer when you're expecting a pointer or
aggregate, you at least have some sense that something is off, but
consider the case of the function actually returning a 64-bit integer.
For example, compile this without debug info:
unsigned long long
function ()
{
return 0x7fffffffffffffff;
}
Currently, with pristine GDB, you get:
(gdb) p function ()
$1 = -1 # incorrect
(gdb) p /x function ()
$2 = 0xffffffff # incorrect
maybe after spending a few hours debugging you suspect something is
wrong with that -1, and do:
(gdb) ptype function
type = int ()
and maybe, just maybe, you realize that the function actually returns
unsigned long long. And you try to fix it with:
(gdb) p /x (unsigned long long) function ()
$3 = 0xffffffffffffffff # incorrect
... which still produces the wrong result, because GDB simply applied
int to unsigned long long conversion. Meaning, it sign-extended the
integer that it extracted from the return of the function, to 64-bits.
and then maybe, after asking around on IRC, you realize you have to
cast the function to a pointer of the right type, and call that. It
won't be easy, but after a few missteps, you'll get to it:
..... (gdb) p /x ((unsigned long long(*) ()) function) ()
$666 = 0x7fffffffffffffff # finally! :-)
So to improve on the user experience, this patch does the following
(interrelated) things:
- makes no-debug-info functions no longer default to "int" as return
type. Instead, they're left with NULL/"<unknown return type>"
return type.
(gdb) ptype getenv
type = <unknown return type> ()
- makes calling a function with unknown return type an error.
(gdb) p getenv ("PATH")
'getenv' has unknown return type; cast the call to its declared return type
- and then to make it easier to call the function, makes it possible
to _only_ cast the return of the function to the right type,
instead of having to cast the function to a function pointer:
(gdb) p (char *) getenv ("PATH") # now Just Works
$3 = 0x7fffffffe7d7 "/usr/local/bin:/"...
(gdb) p ((char *(*) (const char *)) getenv) ("PATH") # continues working
$4 = 0x7fffffffe7d7 "/usr/local/bin:/"...
I.e., it makes GDB default the function's return type to the type
of the cast, and the function's parameters to the type of the
arguments passed down.
After this patch, here's what you'll get for the "unsigned long long"
example above:
(gdb) p function ()
'function' has unknown return type; cast the call to its declared return type
(gdb) p /x (unsigned long long) function ()
$4 = 0x7fffffffffffffff # correct!
Note that while with "print" GDB shows the name of the function that
has the problem:
(gdb) p getenv ("PATH")
'getenv' has unknown return type; cast the call to its declared return type
which can by handy in more complicated expressions, "ptype" does not:
(gdb) ptype getenv ("PATH")
function has unknown return type; cast the call to its declared return type
This will be fixed in the next patch.
gdb/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* ada-lang.c (ada_evaluate_subexp) <TYPE_CODE_FUNC>: Don't handle
TYPE_GNU_IFUNC specially here. Throw error if return type is
unknown.
* ada-typeprint.c (print_func_type): Handle functions with unknown
return type.
* c-typeprint.c (c_type_print_base): Handle functions and methods
with unknown return type.
* compile/compile-c-symbols.c (convert_symbol_bmsym)
<mst_text_gnu_ifunc>: Use nodebug_text_gnu_ifunc_symbol.
* compile/compile-c-types.c: Include "objfiles.h".
(convert_func): For functions with unknown return type, warn and
default to int.
* compile/compile-object-run.c (compile_object_run): Adjust call
to call_function_by_hand_dummy.
* elfread.c (elf_gnu_ifunc_resolve_addr): Adjust call to
call_function_by_hand.
* eval.c (evaluate_subexp_standard): Adjust calls to
call_function_by_hand. Handle functions and methods with unknown
return type. Pass expect_type to call_function_by_hand.
* f-typeprint.c (f_type_print_base): Handle functions with unknown
return type.
* gcore.c (call_target_sbrk): Adjust call to
call_function_by_hand.
* gdbtypes.c (objfile_type): Leave nodebug text symbol with NULL
return type instead of int. Make nodebug_text_gnu_ifunc_symbol be
an integer address type instead of nodebug.
* guile/scm-value.c (gdbscm_value_call): Adjust call to
call_function_by_hand.
* infcall.c (error_call_unknown_return_type): New function.
(call_function_by_hand): New "default_return_type" parameter.
Pass it down.
(call_function_by_hand_dummy): New "default_return_type"
parameter. Use it instead of defaulting to int. If there's no
default and the return type is unknown, throw an error. If
there's a default return type, and the called function has no
debug info, then assume the function is prototyped.
* infcall.h (call_function_by_hand, call_function_by_hand_dummy):
New "default_return_type" parameter.
(error_call_unknown_return_type): New declaration.
* linux-fork.c (call_lseek): Cast return type of lseek.
(inferior_call_waitpid, checkpoint_command): Adjust calls to
call_function_by_hand.
* linux-tdep.c (linux_infcall_mmap, linux_infcall_munmap): Adjust
calls to call_function_by_hand.
* m2-typeprint.c (m2_procedure): Handle functions with unknown
return type.
* objc-lang.c (lookup_objc_class, lookup_child_selector)
(value_nsstring, print_object_command): Adjust calls to
call_function_by_hand.
* p-typeprint.c (pascal_type_print_varspec_prefix): Handle
functions with unknown return type.
(pascal_type_print_func_varspec_suffix): New function.
(pascal_type_print_varspec_suffix) <TYPE_CODE_FUNC,
TYPE_CODE_METHOD>: Use it.
* python/py-value.c (valpy_call): Adjust call to
call_function_by_hand.
* rust-lang.c (rust_evaluate_funcall): Adjust call to
call_function_by_hand.
* valarith.c (value_x_binop, value_x_unop): Adjust calls to
call_function_by_hand.
* valops.c (value_allocate_space_in_inferior): Adjust call to
call_function_by_hand.
* typeprint.c (type_print_unknown_return_type): New function.
* typeprint.h (type_print_unknown_return_type): New declaration.
gdb/testsuite/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* gdb.base/break-main-file-remove-fail.exp (test_remove_bp): Cast
return type of munmap in infcall.
* gdb.base/break-probes.exp: Cast return type of foo in infcall.
* gdb.base/checkpoint.exp: Simplify using for loop. Cast return
type of ftell in infcall.
* gdb.base/dprintf-detach.exp (dprintf_detach_test): Cast return
type of getpid in infcall.
* gdb.base/infcall-exec.exp: Cast return type of execlp in
infcall.
* gdb.base/info-os.exp: Cast return type of getpid in infcall.
Bail on failure to extract the pid.
* gdb.base/nodebug.c: #include <stdint.h>.
(multf, multf_noproto, mult, mult_noproto, add8, add8_noproto):
New functions.
* gdb.base/nodebug.exp (test_call_promotion): New procedure.
Change expected output of print/whatis/ptype with functions with
no debug info. Test all supported languages. Call
test_call_promotion.
* gdb.compile/compile.exp: Adjust expected output to expect
warning.
* gdb.threads/siginfo-threads.exp: Likewise.
2017-09-04 21:21:13 +02:00
|
|
|
if (TYPE_TARGET_TYPE (ftype) == NULL && TYPE_NFIELDS (ftype) == 0
|
|
|
|
&& default_return_type != NULL)
|
|
|
|
{
|
|
|
|
/* Calling a no-debug function with the return type
|
|
|
|
explicitly cast. Assume the function is prototyped,
|
|
|
|
with a prototype matching the types of the arguments.
|
|
|
|
E.g., with:
|
|
|
|
float mult (float v1, float v2) { return v1 * v2; }
|
|
|
|
This:
|
|
|
|
(gdb) p (float) mult (2.0f, 3.0f)
|
|
|
|
Is a simpler alternative to:
|
|
|
|
(gdb) p ((float (*) (float, float)) mult) (2.0f, 3.0f)
|
|
|
|
*/
|
|
|
|
prototyped = 1;
|
|
|
|
}
|
2003-04-23 22:31:57 +02:00
|
|
|
else if (i < TYPE_NFIELDS (ftype))
|
|
|
|
prototyped = TYPE_PROTOTYPED (ftype);
|
|
|
|
else
|
|
|
|
prototyped = 0;
|
|
|
|
|
|
|
|
if (i < TYPE_NFIELDS (ftype))
|
|
|
|
param_type = TYPE_FIELD_TYPE (ftype, i);
|
|
|
|
else
|
|
|
|
param_type = NULL;
|
2007-09-23 18:25:06 +02:00
|
|
|
|
2008-09-11 16:25:04 +02:00
|
|
|
args[i] = value_arg_coerce (gdbarch, args[i],
|
|
|
|
param_type, prototyped, &sp);
|
2003-04-23 22:31:57 +02:00
|
|
|
|
2007-09-23 18:25:06 +02:00
|
|
|
if (param_type != NULL && language_pass_by_reference (param_type))
|
|
|
|
args[i] = value_addr (args[i]);
|
2003-04-23 22:31:57 +02:00
|
|
|
}
|
|
|
|
}
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
|
|
|
/* Reserve space for the return structure to be written on the
|
|
|
|
stack, if necessary. Make certain that the value is correctly
|
2014-11-11 14:43:03 +01:00
|
|
|
aligned.
|
|
|
|
|
|
|
|
While evaluating expressions, we reserve space on the stack for
|
|
|
|
return values of class type even if the language ABI and the target
|
|
|
|
ABI do not require that the return value be passed as a hidden first
|
|
|
|
argument. This is because we want to store the return value as an
|
|
|
|
on-stack temporary while the expression is being evaluated. This
|
|
|
|
enables us to have chained function calls in expressions.
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2014-11-11 14:43:03 +01:00
|
|
|
Keeping the return values as on-stack temporaries while the expression
|
|
|
|
is being evaluated is OK because the thread is stopped until the
|
|
|
|
expression is completely evaluated. */
|
|
|
|
|
|
|
|
if (struct_return || hidden_first_param_p
|
|
|
|
|| (stack_temporaries && class_or_union_p (values_type)))
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
{
|
2007-11-07 07:49:39 +01:00
|
|
|
if (gdbarch_inner_than (gdbarch, 1, 2))
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
{
|
|
|
|
/* Stack grows downward. Align STRUCT_ADDR and SP after
|
|
|
|
making space for the return value. */
|
2012-09-25 14:48:53 +02:00
|
|
|
sp -= TYPE_LENGTH (values_type);
|
2007-11-07 07:49:39 +01:00
|
|
|
if (gdbarch_frame_align_p (gdbarch))
|
|
|
|
sp = gdbarch_frame_align (gdbarch, sp);
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
struct_addr = sp;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
/* Stack grows upward. Align the frame, allocate space, and
|
2011-01-09 04:08:57 +01:00
|
|
|
then again, re-align the frame??? */
|
2007-11-07 07:49:39 +01:00
|
|
|
if (gdbarch_frame_align_p (gdbarch))
|
|
|
|
sp = gdbarch_frame_align (gdbarch, sp);
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
struct_addr = sp;
|
2012-09-25 14:48:53 +02:00
|
|
|
sp += TYPE_LENGTH (values_type);
|
2007-11-07 07:49:39 +01:00
|
|
|
if (gdbarch_frame_align_p (gdbarch))
|
|
|
|
sp = gdbarch_frame_align (gdbarch, sp);
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-06-08 16:24:57 +02:00
|
|
|
if (hidden_first_param_p)
|
2007-09-23 18:25:06 +02:00
|
|
|
{
|
|
|
|
struct value **new_args;
|
|
|
|
|
|
|
|
/* Add the new argument to the front of the argument list. */
|
Replace some xmalloc-family functions with XNEW-family ones
This patch is part of the make-gdb-buildable-in-C++ effort. The idea is
to change some calls to the xmalloc family of functions to calls to the
equivalents in the XNEW family. This avoids adding an explicit cast, so
it keeps the code a bit more readable. Some of them also map relatively
well to a C++ equivalent (XNEW (struct foo) -> new foo), so it will be
possible to do scripted replacements if needed.
I only changed calls that were obviously allocating memory for one or
multiple "objects". Allocation of variable sizes (such as strings or
buffer handling) will be for later (and won't use XNEW).
- xmalloc (sizeof (struct foo)) -> XNEW (struct foo)
- xmalloc (num * sizeof (struct foo)) -> XNEWVEC (struct foo, num)
- xcalloc (1, sizeof (struct foo)) -> XCNEW (struct foo)
- xcalloc (num, sizeof (struct foo)) -> XCNEWVEC (struct foo, num)
- xrealloc (p, num * sizeof (struct foo) -> XRESIZEVEC (struct foo, p, num)
- obstack_alloc (ob, sizeof (struct foo)) -> XOBNEW (ob, struct foo)
- obstack_alloc (ob, num * sizeof (struct foo)) -> XOBNEWVEC (ob, struct foo, num)
- alloca (sizeof (struct foo)) -> XALLOCA (struct foo)
- alloca (num * sizeof (struct foo)) -> XALLOCAVEC (struct foo, num)
Some instances of xmalloc followed by memset to zero the buffer were
replaced by XCNEW or XCNEWVEC.
I regtested on x86-64, Ubuntu 14.04, but the patch touches many
architecture-specific files. For those I'll have to rely on the
buildbot or people complaining that I broke their gdb.
gdb/ChangeLog:
* aarch64-linux-nat.c (aarch64_add_process): Likewise.
* aarch64-tdep.c (aarch64_gdbarch_init): Likewise.
* ada-exp.y (write_ambiguous_var): Likewise.
* ada-lang.c (resolve_subexp): Likewise.
(user_select_syms): Likewise.
(assign_aggregate): Likewise.
(ada_evaluate_subexp): Likewise.
(cache_symbol): Likewise.
* addrmap.c (allocate_key): Likewise.
(addrmap_create_mutable): Likewise.
* aix-thread.c (sync_threadlists): Likewise.
* alpha-tdep.c (alpha_push_dummy_call): Likewise.
(alpha_gdbarch_init): Likewise.
* amd64-windows-tdep.c (amd64_windows_push_arguments): Likewise.
* arm-linux-nat.c (arm_linux_add_process): Likewise.
* arm-linux-tdep.c (arm_linux_displaced_step_copy_insn): Likewise.
* arm-tdep.c (push_stack_item): Likewise.
(arm_displaced_step_copy_insn): Likewise.
(arm_gdbarch_init): Likewise.
(_initialize_arm_tdep): Likewise.
* avr-tdep.c (push_stack_item): Likewise.
* ax-general.c (new_agent_expr): Likewise.
* block.c (block_initialize_namespace): Likewise.
* breakpoint.c (alloc_counted_command_line): Likewise.
(update_dprintf_command_list): Likewise.
(parse_breakpoint_sals): Likewise.
(decode_static_tracepoint_spec): Likewise.
(until_break_command): Likewise.
(clear_command): Likewise.
(update_global_location_list): Likewise.
(get_breakpoint_objfile_data) Likewise.
* btrace.c (ftrace_new_function): Likewise.
(btrace_set_insn_history): Likewise.
(btrace_set_call_history): Likewise.
* buildsym.c (add_symbol_to_list): Likewise.
(record_pending_block): Likewise.
(start_subfile): Likewise.
(start_buildsym_compunit): Likewise.
(push_subfile): Likewise.
(end_symtab_get_static_block): Likewise.
(buildsym_init): Likewise.
* cli/cli-cmds.c (source_command): Likewise.
* cli/cli-decode.c (add_cmd): Likewise.
* cli/cli-script.c (build_command_line): Likewise.
(setup_user_args): Likewise.
(realloc_body_list): Likewise.
(process_next_line): Likewise.
(copy_command_lines): Likewise.
* cli/cli-setshow.c (do_set_command): Likewise.
* coff-pe-read.c (read_pe_exported_syms): Likewise.
* coffread.c (coff_locate_sections): Likewise.
(coff_symtab_read): Likewise.
(coff_read_struct_type): Likewise.
* common/cleanups.c (make_my_cleanup2): Likewise.
* common/common-exceptions.c (throw_it): Likewise.
* common/filestuff.c (make_cleanup_close): Likewise.
* common/format.c (parse_format_string): Likewise.
* common/queue.h (DEFINE_QUEUE_P): Likewise.
* compile/compile-object-load.c (munmap_list_add): Likewise.
(compile_object_load): Likewise.
* compile/compile-object-run.c (compile_object_run): Likewise.
* compile/compile.c (append_args): Likewise.
* corefile.c (specify_exec_file_hook): Likewise.
* cp-support.c (make_symbol_overload_list): Likewise.
* cris-tdep.c (push_stack_item): Likewise.
(cris_gdbarch_init): Likewise.
* ctf.c (ctf_trace_file_writer_new): Likewise.
* dbxread.c (init_header_files): Likewise.
(add_new_header_file): Likewise.
(init_bincl_list): Likewise.
(dbx_end_psymtab): Likewise.
(start_psymtab): Likewise.
(dbx_end_psymtab): Likewise.
* dcache.c (dcache_init): Likewise.
* dictionary.c (dict_create_hashed): Likewise.
(dict_create_hashed_expandable): Likewise.
(dict_create_linear): Likewise.
(dict_create_linear_expandable): Likewise.
* dtrace-probe.c (dtrace_process_dof_probe): Likewise.
* dummy-frame.c (register_dummy_frame_dtor): Likewise.
* dwarf2-frame-tailcall.c (cache_new_ref1): Likewise.
* dwarf2-frame.c (dwarf2_build_frame_info): Likewise.
(decode_frame_entry_1): Likewise.
* dwarf2expr.c (new_dwarf_expr_context): Likewise.
* dwarf2loc.c (dwarf2_compile_expr_to_ax): Likewise.
* dwarf2read.c (dwarf2_has_info): Likewise.
(create_signatured_type_table_from_index): Likewise.
(dwarf2_read_index): Likewise.
(dw2_get_file_names_reader): Likewise.
(create_all_type_units): Likewise.
(read_cutu_die_from_dwo): Likewise.
(init_tu_and_read_dwo_dies): Likewise.
(init_cutu_and_read_dies): Likewise.
(create_all_comp_units): Likewise.
(queue_comp_unit): Likewise.
(inherit_abstract_dies): Likewise.
(read_call_site_scope): Likewise.
(dwarf2_add_field): Likewise.
(dwarf2_add_typedef): Likewise.
(dwarf2_add_member_fn): Likewise.
(attr_to_dynamic_prop): Likewise.
(abbrev_table_alloc_abbrev): Likewise.
(abbrev_table_read_table): Likewise.
(add_include_dir): Likewise.
(add_file_name): Likewise.
(dwarf_decode_line_header): Likewise.
(dwarf2_const_value_attr): Likewise.
(dwarf_alloc_block): Likewise.
(parse_macro_definition): Likewise.
(set_die_type): Likewise.
(write_psymtabs_to_index): Likewise.
(create_cus_from_index): Likewise.
(dwarf2_create_include_psymtab): Likewise.
(process_psymtab_comp_unit_reader): Likewise.
(build_type_psymtab_dependencies): Likewise.
(read_comp_units_from_section): Likewise.
(compute_compunit_symtab_includes): Likewise.
(create_dwo_unit_in_dwp_v1): Likewise.
(create_dwo_unit_in_dwp_v2): Likewise.
(read_func_scope): Likewise.
(process_structure_scope): Likewise.
(mark_common_block_symbol_computed): Likewise.
(load_partial_dies): Likewise.
(dwarf2_symbol_mark_computed): Likewise.
* elfread.c (elf_symfile_segments): Likewise.
(elf_read_minimal_symbols): Likewise.
* environ.c (make_environ): Likewise.
* eval.c (evaluate_subexp_standard): Likewise.
* event-loop.c (create_file_handler): Likewise.
(create_async_signal_handler): Likewise.
(create_async_event_handler): Likewise.
(create_timer): Likewise.
* exec.c (build_section_table): Likewise.
* fbsd-nat.c (fbsd_remember_child): Likewise.
* fork-child.c (fork_inferior): Likewise.
* frv-tdep.c (new_variant): Likewise.
* gdbarch.sh (gdbarch_alloc): Likewise.
(append_name): Likewise.
* gdbtypes.c (rank_function): Likewise.
(copy_type_recursive): Likewise.
(add_dyn_prop): Likewise.
* gnu-nat.c (make_proc): Likewise.
(make_inf): Likewise.
(gnu_write_inferior): Likewise.
* gnu-v3-abi.c (build_gdb_vtable_type): Likewise.
(build_std_type_info_type): Likewise.
* guile/scm-param.c (compute_enum_list): Likewise.
* guile/scm-utils.c (gdbscm_parse_function_args): Likewise.
* guile/scm-value.c (gdbscm_value_call): Likewise.
* h8300-tdep.c (h8300_gdbarch_init): Likewise.
* hppa-tdep.c (hppa_init_objfile_priv_data): Likewise.
(read_unwind_info): Likewise.
* ia64-tdep.c (ia64_gdbarch_init): Likewise.
* infcall.c (dummy_frame_context_saver_setup): Likewise.
(call_function_by_hand_dummy): Likewise.
* infcmd.c (step_once): Likewise.
(finish_forward): Likewise.
(attach_command): Likewise.
(notice_new_inferior): Likewise.
* inferior.c (add_inferior_silent): Likewise.
* infrun.c (add_displaced_stepping_state): Likewise.
(save_infcall_control_state): Likewise.
(save_inferior_ptid): Likewise.
(_initialize_infrun): Likewise.
* jit.c (bfd_open_from_target_memory): Likewise.
(jit_gdbarch_data_init): Likewise.
* language.c (add_language): Likewise.
* linespec.c (decode_line_2): Likewise.
* linux-nat.c (add_to_pid_list): Likewise.
(add_initial_lwp): Likewise.
* linux-thread-db.c (add_thread_db_info): Likewise.
(record_thread): Likewise.
(info_auto_load_libthread_db): Likewise.
* m32c-tdep.c (m32c_gdbarch_init): Likewise.
* m68hc11-tdep.c (m68hc11_gdbarch_init): Likewise.
* m68k-tdep.c (m68k_gdbarch_init): Likewise.
* m88k-tdep.c (m88k_analyze_prologue): Likewise.
* macrocmd.c (macro_define_command): Likewise.
* macroexp.c (gather_arguments): Likewise.
* macroscope.c (sal_macro_scope): Likewise.
* macrotab.c (new_macro_table): Likewise.
* mdebugread.c (push_parse_stack): Likewise.
(parse_partial_symbols): Likewise.
(parse_symbol): Likewise.
(psymtab_to_symtab_1): Likewise.
(new_block): Likewise.
(new_psymtab): Likewise.
(mdebug_build_psymtabs): Likewise.
(add_pending): Likewise.
(elfmdebug_build_psymtabs): Likewise.
* mep-tdep.c (mep_gdbarch_init): Likewise.
* mi/mi-main.c (mi_execute_command): Likewise.
* mi/mi-parse.c (mi_parse_argv): Likewise.
* minidebug.c (lzma_open): Likewise.
* minsyms.c (terminate_minimal_symbol_table): Likewise.
* mips-linux-nat.c (mips_linux_insert_watchpoint): Likewise.
* mips-tdep.c (mips_gdbarch_init): Likewise.
* mn10300-tdep.c (mn10300_gdbarch_init): Likewise.
* msp430-tdep.c (msp430_gdbarch_init): Likewise.
* mt-tdep.c (mt_registers_info): Likewise.
* nat/aarch64-linux.c (aarch64_linux_new_thread): Likewise.
* nat/linux-btrace.c (linux_enable_bts): Likewise.
(linux_enable_pt): Likewise.
* nat/linux-osdata.c (linux_xfer_osdata_processes): Likewise.
(linux_xfer_osdata_processgroups): Likewise.
* nios2-tdep.c (nios2_gdbarch_init): Likewise.
* nto-procfs.c (procfs_meminfo): Likewise.
* objc-lang.c (start_msglist): Likewise.
(selectors_info): Likewise.
(classes_info): Likewise.
(find_methods): Likewise.
* objfiles.c (allocate_objfile): Likewise.
(update_section_map): Likewise.
* osabi.c (gdbarch_register_osabi): Likewise.
(gdbarch_register_osabi_sniffer): Likewise.
* parse.c (start_arglist): Likewise.
* ppc-linux-nat.c (hwdebug_find_thread_points_by_tid): Likewise.
(hwdebug_insert_point): Likewise.
* printcmd.c (display_command): Likewise.
(ui_printf): Likewise.
* procfs.c (create_procinfo): Likewise.
(load_syscalls): Likewise.
(proc_get_LDT_entry): Likewise.
(proc_update_threads): Likewise.
* prologue-value.c (make_pv_area): Likewise.
(pv_area_store): Likewise.
* psymtab.c (extend_psymbol_list): Likewise.
(init_psymbol_list): Likewise.
(allocate_psymtab): Likewise.
* python/py-inferior.c (add_thread_object): Likewise.
* python/py-param.c (compute_enum_values): Likewise.
* python/py-value.c (valpy_call): Likewise.
* python/py-varobj.c (py_varobj_iter_next): Likewise.
* python/python.c (ensure_python_env): Likewise.
* record-btrace.c (record_btrace_start_replaying): Likewise.
* record-full.c (record_full_reg_alloc): Likewise.
(record_full_mem_alloc): Likewise.
(record_full_end_alloc): Likewise.
(record_full_core_xfer_partial): Likewise.
* regcache.c (get_thread_arch_aspace_regcache): Likewise.
* remote-fileio.c (remote_fileio_init_fd_map): Likewise.
* remote-notif.c (remote_notif_state_allocate): Likewise.
* remote.c (demand_private_info): Likewise.
(remote_notif_stop_alloc_reply): Likewise.
(remote_enable_btrace): Likewise.
* reverse.c (save_bookmark_command): Likewise.
* rl78-tdep.c (rl78_gdbarch_init): Likewise.
* rx-tdep.c (rx_gdbarch_init): Likewise.
* s390-linux-nat.c (s390_insert_watchpoint): Likewise.
* ser-go32.c (dos_get_tty_state): Likewise.
(dos_copy_tty_state): Likewise.
* ser-mingw.c (ser_windows_open): Likewise.
(ser_console_wait_handle): Likewise.
(ser_console_get_tty_state): Likewise.
(make_pipe_state): Likewise.
(net_windows_open): Likewise.
* ser-unix.c (hardwire_get_tty_state): Likewise.
(hardwire_copy_tty_state): Likewise.
* solib-aix.c (solib_aix_new_lm_info): Likewise.
* solib-dsbt.c (dsbt_current_sos): Likewise.
(dsbt_relocate_main_executable): Likewise.
* solib-frv.c (frv_current_sos): Likewise.
(frv_relocate_main_executable): Likewise.
* solib-spu.c (spu_bfd_fopen): Likewise.
* solib-svr4.c (lm_info_read): Likewise.
(svr4_copy_library_list): Likewise.
(svr4_default_sos): Likewise.
* source.c (find_source_lines): Likewise.
(line_info): Likewise.
(add_substitute_path_rule): Likewise.
* spu-linux-nat.c (spu_bfd_open): Likewise.
* spu-tdep.c (info_spu_dma_cmdlist): Likewise.
* stabsread.c (dbx_lookup_type): Likewise.
(read_type): Likewise.
(read_member_functions): Likewise.
(read_struct_fields): Likewise.
(read_baseclasses): Likewise.
(read_args): Likewise.
(_initialize_stabsread): Likewise.
* stack.c (func_command): Likewise.
* stap-probe.c (handle_stap_probe): Likewise.
* symfile.c (addrs_section_sort): Likewise.
(addr_info_make_relative): Likewise.
(load_section_callback): Likewise.
(add_symbol_file_command): Likewise.
(init_filename_language_table): Likewise.
* symtab.c (create_filename_seen_cache): Likewise.
(sort_search_symbols_remove_dups): Likewise.
(search_symbols): Likewise.
* target.c (make_cleanup_restore_target_terminal): Likewise.
* thread.c (new_thread): Likewise.
(enable_thread_stack_temporaries): Likewise.
(make_cleanup_restore_current_thread): Likewise.
(thread_apply_all_command): Likewise.
* tic6x-tdep.c (tic6x_gdbarch_init): Likewise.
* top.c (gdb_readline_wrapper): Likewise.
* tracefile-tfile.c (tfile_trace_file_writer_new): Likewise.
* tracepoint.c (trace_find_line_command): Likewise.
(all_tracepoint_actions_and_cleanup): Likewise.
(make_cleanup_restore_current_traceframe): Likewise.
(get_uploaded_tp): Likewise.
(get_uploaded_tsv): Likewise.
* tui/tui-data.c (tui_alloc_generic_win_info): Likewise.
(tui_alloc_win_info): Likewise.
(tui_alloc_content): Likewise.
(tui_add_content_elements): Likewise.
* tui/tui-disasm.c (tui_find_disassembly_address): Likewise.
(tui_set_disassem_content): Likewise.
* ui-file.c (ui_file_new): Likewise.
(stdio_file_new): Likewise.
(tee_file_new): Likewise.
* utils.c (make_cleanup_restore_integer): Likewise.
(add_internal_problem_command): Likewise.
* v850-tdep.c (v850_gdbarch_init): Likewise.
* valops.c (find_oload_champ): Likewise.
* value.c (allocate_value_lazy): Likewise.
(record_latest_value): Likewise.
(create_internalvar): Likewise.
* varobj.c (install_variable): Likewise.
(new_variable): Likewise.
(new_root_variable): Likewise.
(cppush): Likewise.
(_initialize_varobj): Likewise.
* windows-nat.c (windows_make_so): Likewise.
* x86-nat.c (x86_add_process): Likewise.
* xcoffread.c (arrange_linetable): Likewise.
(allocate_include_entry): Likewise.
(process_linenos): Likewise.
(SYMBOL_DUP): Likewise.
(xcoff_start_psymtab): Likewise.
(xcoff_end_psymtab): Likewise.
* xml-support.c (gdb_xml_parse_attr_ulongest): Likewise.
* xtensa-tdep.c (xtensa_register_type): Likewise.
* gdbarch.c: Regenerate.
* gdbarch.h: Regenerate.
gdb/gdbserver/ChangeLog:
* ax.c (gdb_parse_agent_expr): Likewise.
(compile_bytecodes): Likewise.
* dll.c (loaded_dll): Likewise.
* event-loop.c (append_callback_event): Likewise.
(create_file_handler): Likewise.
(create_file_event): Likewise.
* hostio.c (handle_open): Likewise.
* inferiors.c (add_thread): Likewise.
(add_process): Likewise.
* linux-aarch64-low.c (aarch64_linux_new_process): Likewise.
* linux-arm-low.c (arm_new_process): Likewise.
(arm_new_thread): Likewise.
* linux-low.c (add_to_pid_list): Likewise.
(linux_add_process): Likewise.
(handle_extended_wait): Likewise.
(add_lwp): Likewise.
(enqueue_one_deferred_signal): Likewise.
(enqueue_pending_signal): Likewise.
(linux_resume_one_lwp_throw): Likewise.
(linux_resume_one_thread): Likewise.
(linux_read_memory): Likewise.
(linux_write_memory): Likewise.
* linux-mips-low.c (mips_linux_new_process): Likewise.
(mips_linux_new_thread): Likewise.
(mips_add_watchpoint): Likewise.
* linux-x86-low.c (initialize_low_arch): Likewise.
* lynx-low.c (lynx_add_process): Likewise.
* mem-break.c (set_raw_breakpoint_at): Likewise.
(set_breakpoint): Likewise.
(add_condition_to_breakpoint): Likewise.
(add_commands_to_breakpoint): Likewise.
(clone_agent_expr): Likewise.
(clone_one_breakpoint): Likewise.
* regcache.c (new_register_cache): Likewise.
* remote-utils.c (look_up_one_symbol): Likewise.
* server.c (queue_stop_reply): Likewise.
(start_inferior): Likewise.
(queue_stop_reply_callback): Likewise.
(handle_target_event): Likewise.
* spu-low.c (fetch_ppc_memory): Likewise.
(store_ppc_memory): Likewise.
* target.c (set_target_ops): Likewise.
* thread-db.c (thread_db_load_search): Likewise.
(try_thread_db_load_1): Likewise.
* tracepoint.c (add_tracepoint): Likewise.
(add_tracepoint_action): Likewise.
(create_trace_state_variable): Likewise.
(cmd_qtdpsrc): Likewise.
(cmd_qtro): Likewise.
(add_while_stepping_state): Likewise.
* win32-low.c (child_add_thread): Likewise.
(get_image_name): Likewise.
2015-08-26 23:16:07 +02:00
|
|
|
new_args = XNEWVEC (struct value *, nargs + 1);
|
2007-09-23 18:25:06 +02:00
|
|
|
new_args[0] = value_from_pointer (lookup_pointer_type (values_type),
|
|
|
|
struct_addr);
|
|
|
|
memcpy (&new_args[1], &args[0], sizeof (struct value *) * nargs);
|
|
|
|
args = new_args;
|
|
|
|
nargs++;
|
|
|
|
args_cleanup = make_cleanup (xfree, args);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
args_cleanup = make_cleanup (null_cleanup, NULL);
|
|
|
|
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
/* Create the dummy stack frame. Pass in the call dummy address as,
|
|
|
|
presumably, the ABI code knows where, in the call dummy, the
|
|
|
|
return address should be pointed. */
|
2007-11-07 07:49:39 +01:00
|
|
|
sp = gdbarch_push_dummy_call (gdbarch, function, get_current_regcache (),
|
|
|
|
bp_addr, nargs, args,
|
2007-06-16 19:16:26 +02:00
|
|
|
sp, struct_return, struct_addr);
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2007-09-23 18:25:06 +02:00
|
|
|
do_cleanups (args_cleanup);
|
|
|
|
|
2004-08-02 19:39:53 +02:00
|
|
|
/* Set up a frame ID for the dummy frame so we can pass it to
|
|
|
|
set_momentary_breakpoint. We need to give the breakpoint a frame
|
|
|
|
ID so that the breakpoint code can correctly re-identify the
|
|
|
|
dummy breakpoint. */
|
2004-08-01 23:12:56 +02:00
|
|
|
/* Sanity. The exact same SP value is returned by PUSH_DUMMY_CALL,
|
Convert frame unwinders to use the current frame and
"struct value".
* frame.c (frame_debug): Make global.
(get_frame_id): Pass this frame to unwinder routines.
(frame_pc_unwind): Remove unused unwind->prev_pc support.
(do_frame_register_read): Do not discard the return value of
frame_register_read.
(frame_register_unwind): Remove debug messages. Use
frame_unwind_register_value.
(frame_unwind_register_value, get_frame_register_value): New
functions.
(create_new_frame, get_frame_base_address, get_frame_locals_address)
(get_frame_args_address, get_frame_type): Pass this frame to
unwinder routines.
(frame_cleanup_after_sniffer, frame_prepare_for_sniffer): New
functions.
* frame.h: Update comments.
(frame_debug, frame_unwind_register_value, get_frame_register_value)
(frame_prepare_for_sniffer): Declare.
* frame-unwind.h: Update comments and parameter names.
(default_frame_sniffer): Declare.
(frame_prev_register_ftype): Return a struct value *.
(struct frame_unwind): Remove prev_pc member.
(frame_unwind_sniffer_ftype, frame_unwind_append_sniffer): Delete.
(frame_unwind_append_unwinder, frame_unwind_got_optimized)
(frame_unwind_got_register, frame_unwind_got_memory)
(frame_unwind_got_constant, frame_unwind_got_address): Declare.
* frame-base.h: Update comments and parameter names.
* valops.c (value_fetch_lazy): Use get_frame_register_value. Iterate
if necessary. Add debugging output.
* sentinel-frame.c (sentinel_frame_prev_register)
(sentinel_frame_this_id): Update for new signature.
(sentinel_frame_prev_pc): Delete.
(sentinel_frame_unwinder): Remove prev_pc.
* ia64-tdep.c (ia64_libunwind_frame_unwind): Do not initialize
prev_pc.
* libunwind-frame.c (libunwind_frame_unwind): Likewise.
* frame-unwind.c (struct frame_unwind_table_entry): Remove sniffer.
(frame_unwind_append_sniffer): Delete.
(frame_unwind_append_unwinder): New function.
(frame_unwind_find_by_frame): Take this frame. Only use sniffers
from unwinders. Use frame_prepare_for_sniffer.
(default_frame_sniffer, frame_unwind_got_optimized)
(frame_unwind_got_register, frame_unwind_got_memory)
(frame_unwind_got_constant, frame_unwind_got_address): New functions.
* dummy-frame.c (dummy_frame_sniffer): Use gdbarch_dummy_id.
(dummy_frame_prev_register, dummy_frame_this_id): Update for new
signature.
* gdbarch.sh: Replace unwind_dummy_id with dummy_id.
* gdbarch.c, gdbarch.c: Regenerated.
* frame-base.c (default_frame_base_address)
(default_frame_locals_address, default_frame_args_address): Update
for new signature.
(frame_base_find_by_frame): Pass this frame to unwinder routines.
* infcall.c (call_function_by_hand): Update comments.
* Makefile.in (frame-unwind.o): Update dependencies.
* gdbint.texinfo (Stack Frames): New chapter.
(Algorithms): Move Frames text to the new chapter.
(Target Conditionals): Delete SAVE_DUMMY_FRAME_TOS. Document
gdbarch_dummy_id instead of gdbarch_unwind_dummy_id.
2008-04-30 23:16:46 +02:00
|
|
|
saved as the dummy-frame TOS, and used by dummy_id to form
|
2004-08-01 23:12:56 +02:00
|
|
|
the frame ID's stack address. */
|
2004-08-02 19:39:53 +02:00
|
|
|
dummy_id = frame_id_build (sp, bp_addr);
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2003-04-24 00:28:42 +02:00
|
|
|
/* Create a momentary breakpoint at the return address of the
|
|
|
|
inferior. That way it breaks when it returns. */
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2003-04-24 00:28:42 +02:00
|
|
|
{
|
2017-09-04 18:10:13 +02:00
|
|
|
symtab_and_line sal;
|
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
|
|
|
sal.pspace = current_program_space;
|
2003-04-24 00:28:42 +02:00
|
|
|
sal.pc = bp_addr;
|
|
|
|
sal.section = find_pc_overlay (sal.pc);
|
2017-09-04 18:10:13 +02:00
|
|
|
|
2004-08-01 23:12:56 +02:00
|
|
|
/* Sanity. The exact same SP value is returned by
|
|
|
|
PUSH_DUMMY_CALL, saved as the dummy-frame TOS, and used by
|
Convert frame unwinders to use the current frame and
"struct value".
* frame.c (frame_debug): Make global.
(get_frame_id): Pass this frame to unwinder routines.
(frame_pc_unwind): Remove unused unwind->prev_pc support.
(do_frame_register_read): Do not discard the return value of
frame_register_read.
(frame_register_unwind): Remove debug messages. Use
frame_unwind_register_value.
(frame_unwind_register_value, get_frame_register_value): New
functions.
(create_new_frame, get_frame_base_address, get_frame_locals_address)
(get_frame_args_address, get_frame_type): Pass this frame to
unwinder routines.
(frame_cleanup_after_sniffer, frame_prepare_for_sniffer): New
functions.
* frame.h: Update comments.
(frame_debug, frame_unwind_register_value, get_frame_register_value)
(frame_prepare_for_sniffer): Declare.
* frame-unwind.h: Update comments and parameter names.
(default_frame_sniffer): Declare.
(frame_prev_register_ftype): Return a struct value *.
(struct frame_unwind): Remove prev_pc member.
(frame_unwind_sniffer_ftype, frame_unwind_append_sniffer): Delete.
(frame_unwind_append_unwinder, frame_unwind_got_optimized)
(frame_unwind_got_register, frame_unwind_got_memory)
(frame_unwind_got_constant, frame_unwind_got_address): Declare.
* frame-base.h: Update comments and parameter names.
* valops.c (value_fetch_lazy): Use get_frame_register_value. Iterate
if necessary. Add debugging output.
* sentinel-frame.c (sentinel_frame_prev_register)
(sentinel_frame_this_id): Update for new signature.
(sentinel_frame_prev_pc): Delete.
(sentinel_frame_unwinder): Remove prev_pc.
* ia64-tdep.c (ia64_libunwind_frame_unwind): Do not initialize
prev_pc.
* libunwind-frame.c (libunwind_frame_unwind): Likewise.
* frame-unwind.c (struct frame_unwind_table_entry): Remove sniffer.
(frame_unwind_append_sniffer): Delete.
(frame_unwind_append_unwinder): New function.
(frame_unwind_find_by_frame): Take this frame. Only use sniffers
from unwinders. Use frame_prepare_for_sniffer.
(default_frame_sniffer, frame_unwind_got_optimized)
(frame_unwind_got_register, frame_unwind_got_memory)
(frame_unwind_got_constant, frame_unwind_got_address): New functions.
* dummy-frame.c (dummy_frame_sniffer): Use gdbarch_dummy_id.
(dummy_frame_prev_register, dummy_frame_this_id): Update for new
signature.
* gdbarch.sh: Replace unwind_dummy_id with dummy_id.
* gdbarch.c, gdbarch.c: Regenerated.
* frame-base.c (default_frame_base_address)
(default_frame_locals_address, default_frame_args_address): Update
for new signature.
(frame_base_find_by_frame): Pass this frame to unwinder routines.
* infcall.c (call_function_by_hand): Update comments.
* Makefile.in (frame-unwind.o): Update dependencies.
* gdbint.texinfo (Stack Frames): New chapter.
(Algorithms): Move Frames text to the new chapter.
(Target Conditionals): Delete SAVE_DUMMY_FRAME_TOS. Document
gdbarch_dummy_id instead of gdbarch_unwind_dummy_id.
2008-04-30 23:16:46 +02:00
|
|
|
dummy_id to form the frame ID's stack address. */
|
2017-09-04 18:10:13 +02:00
|
|
|
breakpoint *bpt = set_momentary_breakpoint (gdbarch, sal,
|
|
|
|
dummy_id, bp_call_dummy);
|
2012-02-29 15:52:44 +01:00
|
|
|
|
|
|
|
/* set_momentary_breakpoint invalidates FRAME. */
|
|
|
|
frame = NULL;
|
|
|
|
|
2003-04-24 00:28:42 +02:00
|
|
|
bpt->disposition = disp_del;
|
2012-06-18 19:28:38 +02:00
|
|
|
gdb_assert (bpt->related_breakpoint == bpt);
|
|
|
|
|
2017-09-04 18:10:13 +02:00
|
|
|
breakpoint *longjmp_b = set_longjmp_breakpoint_for_call_dummy ();
|
2012-06-18 19:28:38 +02:00
|
|
|
if (longjmp_b)
|
|
|
|
{
|
|
|
|
/* Link BPT into the chain of LONGJMP_B. */
|
|
|
|
bpt->related_breakpoint = longjmp_b;
|
|
|
|
while (longjmp_b->related_breakpoint != bpt->related_breakpoint)
|
|
|
|
longjmp_b = longjmp_b->related_breakpoint;
|
|
|
|
longjmp_b->related_breakpoint = bpt;
|
|
|
|
}
|
2003-04-24 00:28:42 +02:00
|
|
|
}
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2009-06-15 14:11:37 +02:00
|
|
|
/* Create a breakpoint in std::terminate.
|
|
|
|
If a C++ exception is raised in the dummy-frame, and the
|
|
|
|
exception handler is (normally, and expected to be) out-of-frame,
|
|
|
|
the default C++ handler will (wrongly) be called in an inferior
|
|
|
|
function call. This is wrong, as an exception can be normally
|
|
|
|
and legally handled out-of-frame. The confines of the dummy frame
|
|
|
|
prevent the unwinder from finding the correct handler (or any
|
|
|
|
handler, unless it is in-frame). The default handler calls
|
|
|
|
std::terminate. This will kill the inferior. Assert that
|
|
|
|
terminate should never be called in an inferior function
|
|
|
|
call. Place a momentary breakpoint in the std::terminate function
|
|
|
|
and if triggered in the call, rewind. */
|
|
|
|
if (unwind_on_terminating_exception_p)
|
2010-03-25 21:48:53 +01:00
|
|
|
set_std_terminate_breakpoint ();
|
2009-06-15 14:11:37 +02:00
|
|
|
|
2015-05-13 20:47:32 +02:00
|
|
|
/* Discard both inf_status and caller_state cleanups.
|
|
|
|
From this point on we explicitly restore the associated state
|
|
|
|
or discard it. */
|
|
|
|
discard_cleanups (inf_status_cleanup);
|
|
|
|
|
2004-08-02 19:39:53 +02:00
|
|
|
/* Everything's ready, push all the info needed to restore the
|
|
|
|
caller (and identify the dummy-frame) onto the dummy-frame
|
|
|
|
stack. */
|
Associate dummy_frame with ptid
This patch is to add ptid into dummy_frame and extend frame_id to
dummy_frame_id (which has a ptid field). With this change, GDB uses
dummy_frame_id (thread ptid and frame_id) to find the dummy frames.
Currently, dummy frames are looked up by frame_id, which isn't
accurate in non-stop or multi-process mode. The test case
gdb.multi/dummy-frame-restore.exp shows the problem and this patch can
fix it.
Test dummy-frame-restore.exp makes two inferiors stop at
different functions, say, inferior 1 stops at f1 while inferior 2
stops at f2. Set a breakpoint to a function, do the inferior call
in two inferiors, and GDB has two dummy frames of the same frame_id.
When the inferior call is finished, GDB will look up a dummy frame
from its stack/list and restore the inferior's regcache. Two
inferiors are finished in different orders, the inferiors' states are
restored differently, which is wrong. Running dummy-frame-restore.exp
under un-patched GDB, we'll get two fails:
FAIL: gdb.multi/dummy-frame-restore.exp: inf 2 first: after infcall: bt in inferior 2
FAIL: gdb.multi/dummy-frame-restore.exp: inf 2 first: after infcall: bt in inferior 1
With this patch applied, GDB will choose the correct dummy_frame to
restore for a given inferior, because ptid is considered when looking up
dummy frames. Two fails above are fixed.
Regression tested on x86_64-linux, both native and gdbserver.
gdb:
2014-06-27 Yao Qi <yao@codesourcery.com>
* breakpoint.c (check_longjmp_breakpoint_for_call_dummy):
Change parameter type to 'struct thread_info *'. Caller
updated.
* breakpoint.h (check_longjmp_breakpoint_for_call_dummy):
Update declaration.
* dummy-frame.c (struct dummy_frame_id): New.
(dummy_frame_id_eq): New function.
(struct dummy_frame) <id>: Change its type to 'struct
dummy_frame_id'.
(dummy_frame_push): Add parameter ptid and save it in
dummy_frame_id.
(pop_dummy_frame_bpt): Use ptid of dummy_frame instead of
inferior_ptid.
(pop_dummy_frame): Assert that the ptid of dummy_frame equals
to inferior_ptid.
(lookup_dummy_frame): Change parameter type to 'struct
dummy_frame_id *'. Callers updated. Call dummy_frame_id_eq
instead of frame_id_eq.
(dummy_frame_pop): Add parameter ptid. Callers updated.
Update comments. Compose dummy_frame_id and pass it to
lookup_dummy_frame.
(dummy_frame_discard): Add parameter ptid.
(dummy_frame_sniffer): Compose dummy_frame_id and call
dummy_frame_id_eq instead of frame_id_eq.
(fprint_dummy_frames): Print ptid.
* dummy-frame.h: Remove comments.
(dummy_frame_push): Add ptid in declaration.
(dummy_frame_pop, dummy_frame_discard): Likewise.
gdb/testsuite:
2014-06-27 Yao Qi <yao@codesourcery.com>
* gdb.multi/dummy-frame-restore.exp: New.
* gdb.multi/dummy-frame-restore.c: New.
gdb/doc:
2014-06-27 Yao Qi <yao@codesourcery.com>
* gdb.texinfo (Maintenance Commands): Update the output of
'maint print dummy-frames' command.
2014-06-25 05:52:52 +02:00
|
|
|
dummy_frame_push (caller_state, &dummy_id, inferior_ptid);
|
2014-05-14 22:16:22 +02:00
|
|
|
if (dummy_dtor != NULL)
|
|
|
|
register_dummy_frame_dtor (dummy_id, inferior_ptid,
|
|
|
|
dummy_dtor, dummy_dtor_data);
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
|
2009-06-15 14:11:37 +02:00
|
|
|
/* Register a clean-up for unwind_on_terminating_exception_breakpoint. */
|
2010-03-25 21:48:53 +01:00
|
|
|
terminate_bp_cleanup = make_cleanup (cleanup_delete_std_terminate_breakpoint,
|
|
|
|
NULL);
|
2009-06-15 14:11:37 +02:00
|
|
|
|
2004-08-02 19:39:53 +02:00
|
|
|
/* - SNIP - SNIP - SNIP - SNIP - SNIP - SNIP - SNIP - SNIP - SNIP -
|
|
|
|
If you're looking to implement asynchronous dummy-frames, then
|
|
|
|
just below is the place to chop this function in two.. */
|
|
|
|
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
/* TP is invalid after run_inferior_call returns, so enclose this
|
|
|
|
in a block so that it's only in scope during the time it's valid. */
|
2003-04-24 00:28:42 +02:00
|
|
|
{
|
2008-09-08 23:48:52 +02:00
|
|
|
struct thread_info *tp = inferior_thread ();
|
2015-09-09 19:23:24 +02:00
|
|
|
struct thread_fsm *saved_sm;
|
|
|
|
struct call_thread_fsm *sm;
|
|
|
|
|
|
|
|
/* Save the current FSM. We'll override it. */
|
|
|
|
saved_sm = tp->thread_fsm;
|
|
|
|
tp->thread_fsm = NULL;
|
2003-04-24 00:28:42 +02:00
|
|
|
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
/* Save this thread's ptid, we need it later but the thread
|
|
|
|
may have exited. */
|
|
|
|
call_thread_ptid = tp->ptid;
|
2003-04-24 00:28:42 +02:00
|
|
|
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
/* Run the inferior until it stops. */
|
2008-06-10 11:32:05 +02:00
|
|
|
|
2015-09-09 19:23:24 +02:00
|
|
|
/* Create the FSM used to manage the infcall. It tells infrun to
|
|
|
|
not report the stop to the user, and captures the return value
|
|
|
|
before the dummy frame is popped. run_inferior_call registers
|
|
|
|
it with the thread ASAP. */
|
Push thread->control.command_interp to the struct thread_fsm
I noticed that if we step into an inline function, step_1 never
reaches proceed, and thus nevers sets the thread's
tp->control.command_interp. Because of that,
should_print_stop_to_console fails to determine that is should print
stop output to the console.
The fix is to set the thread's command_interp earlier. However, I
realized that we can move that field to the thread_fsm, given that its
lifetime is exactly the same as thread_fsm. So the patch plumbs all
fsms constructors to take the command interp and store it in the
thread_fsm.
We can see the fix in action, with e.g., the gdb.opt/inline-cmds.exp
test, and issuing a step when stopped at line 67:
&"s\n"
^running
*running,thread-id="all"
(gdb)
~"67\t result = func2 ();\n"
*stopped,reason="end-stepping-range",frame={addr="0x00000000004004d0",func="main",args=[],file="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",fullname="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",line="67"},thread-id="1",stopped-threads="all",core="0"
(gdb)
s
&"s\n"
^running
*running,thread-id="all"
(gdb)
+ ~"func2 () at /home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c:67\n"
+ ~"67\t result = func2 ();\n"
*stopped,reason="end-stepping-range",frame={addr="0x00000000004004d0",func="func2",args=[],file="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",fullname="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",line="67"},thread-id="1",stopped-threads="all",core="0"
(gdb)
(The inline-cmds.exp command is adjusted to exercise this.)
(Due to the follow_fork change, this also fixes "next N" across a fork
with "set follow-fork child" with "set detach-on-fork on". Commands
that rely on internal breakpoints, like "finish" will still require
more work to migrate breakpoints etc. to the child thread.)
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* breakpoint.c (new_until_break_fsm): Add 'cmd_interp' parameter.
(until_break_fsm_should_stop, until_break_fsm_clean_up): Add
thread parameter.
(until_break_command): Pass command interpreter to thread fsm
ctor.
* cli/cli-interp.c (should_print_stop_to_console): Adjust.
* gdbthread.h (struct thread_control_state) <command_interp>:
Delete field.
* infcall.c (new_call_thread_fsm): Add 'cmd_interp' parameter.
Pass it down.
(call_thread_fsm_should_stop): Add thread parameter.
(call_function_by_hand_dummy): Pass command interpreter to thread
fsm ctor. Pass thread pointer to fsm clean up method.
* infcmd.c: Include interps.h.
(struct step_command_fsm) <thread>: Delete field.
(new_step_command_fsm): Add 'cmd_interp' parameter. Pass it down.
(step_command_fsm_prepare): Remove references to fsm's thread
field.
(step_1): Pass command interpreter to thread
fsm ctor. Pass thread pointer to fsm clean up method.
(step_command_fsm_should_stop, step_command_fsm_clean_up): Add
thread parameter and use it.
(new_until_next_fsm): Add 'cmd_interp' parameter. Pass it down.
(until_next_fsm_should_stop, until_next_fsm_clean_up): Add thread
parameter and use it.
(until_next_command): Pass command interpreter to thread fsm ctor.
(struct finish_command_fsm) <thread>: Delete field.
(finish_command_fsm_ops): Add NULL slot for should_notify_stop.
(new_finish_command_fsm): Add 'cmd_interp' parameter and pass it
down. Remove thread parameter and adjust.
(finish_command_fsm_should_stop, finish_command_fsm_clean_up): Add
thread parameter and use it.
(finish_command): Pass command interpreter to thread fsm ctor.
Don't pass thread.
* infrun.c (follow_fork): Move thread fsm to child fork instead of
command interpreter, only.
(clear_proceed_status_thread): Remove reference to command_interp.
(proceed): Don't record the thread's command interpreter.
(clean_up_just_stopped_threads_fsms): Pass thread to fsm clean_up
method.
(fetch_inferior_event): Pass thread to fsm should_stop method.
* thread-fsm.c (thread_fsm_ctor): Add 'cmd_interp' parameter.
Store it.
(thread_fsm_clean_up, thread_fsm_should_stop): Add thread
parameter and pass it down.
* thread-fsm.h (struct thread_fsm) <command_interp>: New field.
(struct thread_fsm_ops) <clean_up, should_stop>: Add thread
parameter.
(thread_fsm_ctor): Add 'cmd_interp' parameter.
(thread_fsm_clean_up, thread_fsm_should_stop): Add thread
parameter.
* thread.c (thread_cancel_execution_command): Pass thread to
thread fsm clean_up method.
gdb/testsuite/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* gdb.opt/inline-cmds.c: Add "set mi break here" marker.
* gdb.opt/inline-cmds.exp: Add MI tests.
2016-06-21 02:11:53 +02:00
|
|
|
sm = new_call_thread_fsm (current_ui, command_interp (),
|
Replace the sync_execution global with a new enum prompt_state tristate
When sync_execution (a boolean) is true, it means we're running a
foreground command -- we hide the prompt stop listening to input, give
the inferior the terminal, then go to the event loop waiting for the
target to stop.
With multiple independent UIs, we need to track whether each UI is
synchronously blocked waiting for the target. IOW, if you do
"continue" in one console, that console stops accepting commands, but
you should still be free to type other commands in the others
consoles.
Just simply making sync_execution be per-UI alone not sufficient,
because of this in fetch_inferior_event:
/* If the inferior was in sync execution mode, and now isn't,
restore the prompt (a synchronous execution command has finished,
and we're ready for input). */
if (current_ui->async && was_sync && !sync_execution)
observer_notify_sync_execution_done ();
We'd have to record at entry the "was_sync" state for each UI, not
just of the current UI.
This patch instead replaces the sync_execution flag by a per-UI
tristate flag indicating the command line prompt state:
enum prompt_state
{
/* The command line is blocked simulating synchronous execution.
This is used to implement the foreground execution commands
('run', 'continue', etc.). We won't display the prompt and
accept further commands until the execution is actually over. */
PROMPT_BLOCKED,
/* The command finished; display the prompt before returning back to
the top level. */
PROMPT_NEEDED,
/* We've displayed the prompt already, ready for input. */
PROMPTED,
;
I think the end result is _much_ clearer than the current code, and,
it addresses the original motivation too.
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* annotate.c: Include top.h.
(async_background_execution_p): Delete.
(print_value_flags): Check the UI's prompt state rather then
async_background_execution_p.
* event-loop.c (start_event_loop): Set the prompt state to
PROMPT_NEEDED.
* event-top.c (display_gdb_prompt, async_enable_stdin)
(async_disable_stdin): Check the current UI's prompt state instead
of the sync_execution global.
(command_line_handler): Set the prompt state to PROMPT_NEEDED
before running a command, and display the prompt if still needed
afterwards.
* infcall.c (struct call_thread_fsm) <waiting_ui>: New field.
(new_call_thread_fsm): New parameter 'waiting_ui'. Store it.
(call_thread_fsm_should_stop): Set the prompt state to
PROMPT_NEEDED.
(run_inferior_call): Adjust to temporarily set the prompt state to
PROMPT_BLOCKED instead of using the sync_execution global.
(call_function_by_hand_dummy): Pass the current UI to
new_call_thread_fsm.
* infcmd.c: Include top.h.
(continue_1): Check the current UI's prompt state instead of the
sync_execution global.
(continue_command): Validate global execution state before calling
prepare_execution_command.
(step_1): Call all_uis_check_sync_execution_done.
(attach_post_wait): Don't call async_enable_stdin here. Remove
reference to sync_execution.
* infrun.c (sync_execution): Delete global.
(follow_fork_inferior)
(reinstall_readline_callback_handler_cleanup): Check the current
UI's prompt state instead of the sync_execution global.
(check_curr_ui_sync_execution_done)
(all_uis_check_sync_execution_done): New functions.
(fetch_inferior_event): Call all_uis_check_sync_execution_done
instead of trying to determine whether the global sync execution
changed.
(handle_no_resumed): Check the prompt state of all UIs.
(normal_stop): Emit the no unwait-for even to all PROMPT_BLOCKED
UIs. Emit the "Switching to" notification to all UIs. Enable
stdin in all UIs.
* infrun.h (sync_execution): Delete.
(all_uis_check_sync_execution_done): Declare.
* main.c (captured_command_loop): Don't call
interp_pre_command_loop if the prompt is blocked.
(catch_command_errors, catch_command_errors_const): Adjust.
(captured_main): Set the initial prompt state to PROMPT_NEEDED.
* mi/mi-interp.c (display_mi_prompt): Set the prompt state to
PROMPTED.
(mi_interpreter_resume): Don't clear sync_execution. Remove hack
comment.
(mi_execute_command_input_handler): Set the prompt state to
PROMPT_NEEDED before executing the command, and only display the
prompt if the prompt state is PROMPT_NEEDED afterwards.
(mi_on_resume_1): Adjust to check the prompt state.
* target.c (target_terminal_inferior): Adjust to check the prompt
state.
* top.c (wait_sync_command_done, maybe_wait_sync_command_done)
(execute_command): Check the current UI's prompt state instead of
sync_execution.
* top.h (enum prompt_state): New.
(struct ui) <prompt_state>: New field.
(ALL_UIS): New macro.
2016-06-21 02:11:51 +02:00
|
|
|
gdbarch, function,
|
2015-09-09 19:23:24 +02:00
|
|
|
values_type,
|
|
|
|
struct_return || hidden_first_param_p,
|
|
|
|
struct_addr);
|
|
|
|
|
|
|
|
e = run_inferior_call (sm, tp, real_pc);
|
|
|
|
|
|
|
|
observer_notify_inferior_call_post (call_thread_ptid, funaddr);
|
|
|
|
|
|
|
|
tp = find_thread_ptid (call_thread_ptid);
|
|
|
|
if (tp != NULL)
|
|
|
|
{
|
|
|
|
/* The FSM should still be the same. */
|
|
|
|
gdb_assert (tp->thread_fsm == &sm->thread_fsm);
|
|
|
|
|
|
|
|
if (thread_fsm_finished_p (tp->thread_fsm))
|
|
|
|
{
|
|
|
|
struct value *retval;
|
|
|
|
|
|
|
|
/* The inferior call is successful. Pop the dummy frame,
|
|
|
|
which runs its destructors and restores the inferior's
|
|
|
|
suspend state, and restore the inferior control
|
|
|
|
state. */
|
|
|
|
dummy_frame_pop (dummy_id, call_thread_ptid);
|
|
|
|
restore_infcall_control_state (inf_status);
|
|
|
|
|
|
|
|
/* Get the return value. */
|
|
|
|
retval = sm->return_value;
|
|
|
|
|
|
|
|
/* Clean up / destroy the call FSM, and restore the
|
|
|
|
original one. */
|
Push thread->control.command_interp to the struct thread_fsm
I noticed that if we step into an inline function, step_1 never
reaches proceed, and thus nevers sets the thread's
tp->control.command_interp. Because of that,
should_print_stop_to_console fails to determine that is should print
stop output to the console.
The fix is to set the thread's command_interp earlier. However, I
realized that we can move that field to the thread_fsm, given that its
lifetime is exactly the same as thread_fsm. So the patch plumbs all
fsms constructors to take the command interp and store it in the
thread_fsm.
We can see the fix in action, with e.g., the gdb.opt/inline-cmds.exp
test, and issuing a step when stopped at line 67:
&"s\n"
^running
*running,thread-id="all"
(gdb)
~"67\t result = func2 ();\n"
*stopped,reason="end-stepping-range",frame={addr="0x00000000004004d0",func="main",args=[],file="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",fullname="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",line="67"},thread-id="1",stopped-threads="all",core="0"
(gdb)
s
&"s\n"
^running
*running,thread-id="all"
(gdb)
+ ~"func2 () at /home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c:67\n"
+ ~"67\t result = func2 ();\n"
*stopped,reason="end-stepping-range",frame={addr="0x00000000004004d0",func="func2",args=[],file="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",fullname="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",line="67"},thread-id="1",stopped-threads="all",core="0"
(gdb)
(The inline-cmds.exp command is adjusted to exercise this.)
(Due to the follow_fork change, this also fixes "next N" across a fork
with "set follow-fork child" with "set detach-on-fork on". Commands
that rely on internal breakpoints, like "finish" will still require
more work to migrate breakpoints etc. to the child thread.)
gdb/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* breakpoint.c (new_until_break_fsm): Add 'cmd_interp' parameter.
(until_break_fsm_should_stop, until_break_fsm_clean_up): Add
thread parameter.
(until_break_command): Pass command interpreter to thread fsm
ctor.
* cli/cli-interp.c (should_print_stop_to_console): Adjust.
* gdbthread.h (struct thread_control_state) <command_interp>:
Delete field.
* infcall.c (new_call_thread_fsm): Add 'cmd_interp' parameter.
Pass it down.
(call_thread_fsm_should_stop): Add thread parameter.
(call_function_by_hand_dummy): Pass command interpreter to thread
fsm ctor. Pass thread pointer to fsm clean up method.
* infcmd.c: Include interps.h.
(struct step_command_fsm) <thread>: Delete field.
(new_step_command_fsm): Add 'cmd_interp' parameter. Pass it down.
(step_command_fsm_prepare): Remove references to fsm's thread
field.
(step_1): Pass command interpreter to thread
fsm ctor. Pass thread pointer to fsm clean up method.
(step_command_fsm_should_stop, step_command_fsm_clean_up): Add
thread parameter and use it.
(new_until_next_fsm): Add 'cmd_interp' parameter. Pass it down.
(until_next_fsm_should_stop, until_next_fsm_clean_up): Add thread
parameter and use it.
(until_next_command): Pass command interpreter to thread fsm ctor.
(struct finish_command_fsm) <thread>: Delete field.
(finish_command_fsm_ops): Add NULL slot for should_notify_stop.
(new_finish_command_fsm): Add 'cmd_interp' parameter and pass it
down. Remove thread parameter and adjust.
(finish_command_fsm_should_stop, finish_command_fsm_clean_up): Add
thread parameter and use it.
(finish_command): Pass command interpreter to thread fsm ctor.
Don't pass thread.
* infrun.c (follow_fork): Move thread fsm to child fork instead of
command interpreter, only.
(clear_proceed_status_thread): Remove reference to command_interp.
(proceed): Don't record the thread's command interpreter.
(clean_up_just_stopped_threads_fsms): Pass thread to fsm clean_up
method.
(fetch_inferior_event): Pass thread to fsm should_stop method.
* thread-fsm.c (thread_fsm_ctor): Add 'cmd_interp' parameter.
Store it.
(thread_fsm_clean_up, thread_fsm_should_stop): Add thread
parameter and pass it down.
* thread-fsm.h (struct thread_fsm) <command_interp>: New field.
(struct thread_fsm_ops) <clean_up, should_stop>: Add thread
parameter.
(thread_fsm_ctor): Add 'cmd_interp' parameter.
(thread_fsm_clean_up, thread_fsm_should_stop): Add thread
parameter.
* thread.c (thread_cancel_execution_command): Pass thread to
thread fsm clean_up method.
gdb/testsuite/ChangeLog:
2016-06-21 Pedro Alves <palves@redhat.com>
* gdb.opt/inline-cmds.c: Add "set mi break here" marker.
* gdb.opt/inline-cmds.exp: Add MI tests.
2016-06-21 02:11:53 +02:00
|
|
|
thread_fsm_clean_up (tp->thread_fsm, tp);
|
2015-09-09 19:23:24 +02:00
|
|
|
thread_fsm_delete (tp->thread_fsm);
|
|
|
|
tp->thread_fsm = saved_sm;
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2015-09-09 19:23:24 +02:00
|
|
|
maybe_remove_breakpoints ();
|
|
|
|
|
|
|
|
do_cleanups (terminate_bp_cleanup);
|
|
|
|
gdb_assert (retval != NULL);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Didn't complete. Restore previous state machine, and
|
|
|
|
handle the error. */
|
|
|
|
tp->thread_fsm = saved_sm;
|
|
|
|
}
|
|
|
|
}
|
New python events: inferior call, register/memory changed.
gdb/ChangeLog:
* NEWS: Mention new Python events.
* Makefile.in (SUBDIR_PYTHON_OBS): Add py-infevents.o.
(SUBDIR_PYTHON_SRCS): Add py-infevents.c.
(py-infevents.o): New rule.
* doc/observer.texi (inferior_call_pre, inferior_call_post)
(memory_changed, register_changed): New observers.
* infcall.c (call_function_by_hand): Notify observer before and
after inferior call.
* python/py-event.h (inferior_call_kind): New enum.
(emit_inferior_call_event): New prototype.
(emit_register_changed_event): New prototype.
(emit_memory_changed_event): New prototype.
* python/py-events.h (events_object): New registries
inferior_call, memory_changed and register_changed.
* python/py-evts.c (gdbpy_initialize_py_events): Add the
inferior_call, memory_changed and register_changed registries.
* python/py-infevents.c: New.
* python/py-inferior.c (python_on_inferior_call_pre)
(python_on_inferior_call_post, python_on_register_change)
(python_on_memory_change): New functions.
(gdbpy_initialize_inferior): Attach python handler to new
observers.
* python/py-infthread.c(gdbpy_create_ptid_object): New.
(thpy_get_ptid) Use gdbpy_create_ptid_object.
* python/python-internal.h:
(gdbpy_create_ptid_object)
(gdbpy_initialize_inferior_call_pre_event)
(gdbpy_initialize_inferior_call_post_event)
(gdbpy_initialize_register_changed_event)
(gdbpy_initialize_memory_changed_event): New prototypes.
* python/python.c (_initialize_python): Initialize new events.
* valops.c (value_assign): Notify register_changed observer.
gdb/doc/ChangeLog:
* python.texi (Events In Python): Document new events
InferiorCallPreEvent, InferiorCallPostEvent, MemoryChangedEvent
and RegisterChangedEvent.
gdb/testsuite/ChangeLog:
* gdb.python/py-events.py (inferior_call_handler): New.
(register_changed_handler, memory_changed_handler): New.
(test_events.invoke): Register new handlers.
* gdb.python/py-events.exp: Add tests for inferior call,
memory_changed and register_changed events.
2014-12-02 20:15:29 +01:00
|
|
|
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
/* Rethrow an error if we got one trying to run the inferior. */
|
|
|
|
|
|
|
|
if (e.reason < 0)
|
|
|
|
{
|
|
|
|
const char *name = get_function_name (funaddr,
|
|
|
|
name_buf, sizeof (name_buf));
|
|
|
|
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
discard_infcall_control_state (inf_status);
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
|
|
|
|
/* We could discard the dummy frame here if the program exited,
|
|
|
|
but it will get garbage collected the next time the program is
|
|
|
|
run anyway. */
|
|
|
|
|
|
|
|
switch (e.reason)
|
|
|
|
{
|
|
|
|
case RETURN_ERROR:
|
2011-01-07 18:35:27 +01:00
|
|
|
throw_error (e.error, _("%s\n\
|
|
|
|
An error occurred while in a function called from GDB.\n\
|
|
|
|
Evaluation of the expression containing the function\n\
|
|
|
|
(%s) will be abandoned.\n\
|
|
|
|
When the function is done executing, GDB will silently stop."),
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
e.message, name);
|
|
|
|
case RETURN_QUIT:
|
|
|
|
default:
|
|
|
|
throw_exception (e);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If the program has exited, or we stopped at a different thread,
|
|
|
|
exit and inform the user. */
|
|
|
|
|
2008-11-12 01:39:28 +01:00
|
|
|
if (! target_has_execution)
|
|
|
|
{
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
const char *name = get_function_name (funaddr,
|
|
|
|
name_buf, sizeof (name_buf));
|
|
|
|
|
|
|
|
/* If we try to restore the inferior status,
|
2008-11-12 01:39:28 +01:00
|
|
|
we'll crash as the inferior is no longer running. */
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
discard_infcall_control_state (inf_status);
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
|
|
|
|
/* We could discard the dummy frame here given that the program exited,
|
|
|
|
but it will get garbage collected the next time the program is
|
|
|
|
run anyway. */
|
|
|
|
|
2011-01-05 23:22:53 +01:00
|
|
|
error (_("The program being debugged exited while in a function "
|
|
|
|
"called from GDB.\n"
|
|
|
|
"Evaluation of the expression containing the function\n"
|
|
|
|
"(%s) will be abandoned."),
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
name);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (! ptid_equal (call_thread_ptid, inferior_ptid))
|
|
|
|
{
|
|
|
|
const char *name = get_function_name (funaddr,
|
|
|
|
name_buf, sizeof (name_buf));
|
|
|
|
|
|
|
|
/* We've switched threads. This can happen if another thread gets a
|
|
|
|
signal or breakpoint while our thread was running.
|
|
|
|
There's no point in restoring the inferior status,
|
|
|
|
we're in a different thread. */
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
discard_infcall_control_state (inf_status);
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
/* Keep the dummy frame record, if the user switches back to the
|
|
|
|
thread with the hand-call, we'll need it. */
|
|
|
|
if (stopped_by_random_signal)
|
2011-01-07 18:35:27 +01:00
|
|
|
error (_("\
|
|
|
|
The program received a signal in another thread while\n\
|
|
|
|
making a function call from GDB.\n\
|
|
|
|
Evaluation of the expression containing the function\n\
|
|
|
|
(%s) will be abandoned.\n\
|
|
|
|
When the function is done executing, GDB will silently stop."),
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
name);
|
|
|
|
else
|
2011-01-07 18:35:27 +01:00
|
|
|
error (_("\
|
|
|
|
The program stopped in another thread while making a function call from GDB.\n\
|
|
|
|
Evaluation of the expression containing the function\n\
|
|
|
|
(%s) will be abandoned.\n\
|
|
|
|
When the function is done executing, GDB will silently stop."),
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
name);
|
2008-11-12 01:39:28 +01:00
|
|
|
}
|
|
|
|
|
2003-04-24 00:12:40 +02:00
|
|
|
{
|
2015-05-19 16:12:30 +02:00
|
|
|
/* Make a copy as NAME may be in an objfile freed by dummy_frame_pop. */
|
|
|
|
char *name = xstrdup (get_function_name (funaddr,
|
|
|
|
name_buf, sizeof (name_buf)));
|
|
|
|
make_cleanup (xfree, name);
|
|
|
|
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
|
2003-04-24 00:12:40 +02:00
|
|
|
if (stopped_by_random_signal)
|
|
|
|
{
|
|
|
|
/* We stopped inside the FUNCTION because of a random
|
|
|
|
signal. Further execution of the FUNCTION is not
|
2011-01-09 04:08:57 +01:00
|
|
|
allowed. */
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2003-04-24 00:12:40 +02:00
|
|
|
if (unwind_on_signal_p)
|
|
|
|
{
|
2011-01-09 04:08:57 +01:00
|
|
|
/* The user wants the context restored. */
|
2003-04-24 00:12:40 +02:00
|
|
|
|
|
|
|
/* We must get back to the frame we were before the
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
dummy call. */
|
Associate dummy_frame with ptid
This patch is to add ptid into dummy_frame and extend frame_id to
dummy_frame_id (which has a ptid field). With this change, GDB uses
dummy_frame_id (thread ptid and frame_id) to find the dummy frames.
Currently, dummy frames are looked up by frame_id, which isn't
accurate in non-stop or multi-process mode. The test case
gdb.multi/dummy-frame-restore.exp shows the problem and this patch can
fix it.
Test dummy-frame-restore.exp makes two inferiors stop at
different functions, say, inferior 1 stops at f1 while inferior 2
stops at f2. Set a breakpoint to a function, do the inferior call
in two inferiors, and GDB has two dummy frames of the same frame_id.
When the inferior call is finished, GDB will look up a dummy frame
from its stack/list and restore the inferior's regcache. Two
inferiors are finished in different orders, the inferiors' states are
restored differently, which is wrong. Running dummy-frame-restore.exp
under un-patched GDB, we'll get two fails:
FAIL: gdb.multi/dummy-frame-restore.exp: inf 2 first: after infcall: bt in inferior 2
FAIL: gdb.multi/dummy-frame-restore.exp: inf 2 first: after infcall: bt in inferior 1
With this patch applied, GDB will choose the correct dummy_frame to
restore for a given inferior, because ptid is considered when looking up
dummy frames. Two fails above are fixed.
Regression tested on x86_64-linux, both native and gdbserver.
gdb:
2014-06-27 Yao Qi <yao@codesourcery.com>
* breakpoint.c (check_longjmp_breakpoint_for_call_dummy):
Change parameter type to 'struct thread_info *'. Caller
updated.
* breakpoint.h (check_longjmp_breakpoint_for_call_dummy):
Update declaration.
* dummy-frame.c (struct dummy_frame_id): New.
(dummy_frame_id_eq): New function.
(struct dummy_frame) <id>: Change its type to 'struct
dummy_frame_id'.
(dummy_frame_push): Add parameter ptid and save it in
dummy_frame_id.
(pop_dummy_frame_bpt): Use ptid of dummy_frame instead of
inferior_ptid.
(pop_dummy_frame): Assert that the ptid of dummy_frame equals
to inferior_ptid.
(lookup_dummy_frame): Change parameter type to 'struct
dummy_frame_id *'. Callers updated. Call dummy_frame_id_eq
instead of frame_id_eq.
(dummy_frame_pop): Add parameter ptid. Callers updated.
Update comments. Compose dummy_frame_id and pass it to
lookup_dummy_frame.
(dummy_frame_discard): Add parameter ptid.
(dummy_frame_sniffer): Compose dummy_frame_id and call
dummy_frame_id_eq instead of frame_id_eq.
(fprint_dummy_frames): Print ptid.
* dummy-frame.h: Remove comments.
(dummy_frame_push): Add ptid in declaration.
(dummy_frame_pop, dummy_frame_discard): Likewise.
gdb/testsuite:
2014-06-27 Yao Qi <yao@codesourcery.com>
* gdb.multi/dummy-frame-restore.exp: New.
* gdb.multi/dummy-frame-restore.c: New.
gdb/doc:
2014-06-27 Yao Qi <yao@codesourcery.com>
* gdb.texinfo (Maintenance Commands): Update the output of
'maint print dummy-frames' command.
2014-06-25 05:52:52 +02:00
|
|
|
dummy_frame_pop (dummy_id, call_thread_ptid);
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
|
|
|
|
/* We also need to restore inferior status to that before the
|
|
|
|
dummy call. */
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
restore_infcall_control_state (inf_status);
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2003-04-24 00:12:40 +02:00
|
|
|
/* FIXME: Insert a bunch of wrap_here; name can be very
|
|
|
|
long if it's a C++ name with arguments and stuff. */
|
2011-01-07 18:35:27 +01:00
|
|
|
error (_("\
|
|
|
|
The program being debugged was signaled while in a function called from GDB.\n\
|
|
|
|
GDB has restored the context to what it was before the call.\n\
|
|
|
|
To change this behavior use \"set unwindonsignal off\".\n\
|
|
|
|
Evaluation of the expression containing the function\n\
|
|
|
|
(%s) will be abandoned."),
|
2003-04-24 00:12:40 +02:00
|
|
|
name);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
/* The user wants to stay in the frame where we stopped
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
(default).
|
|
|
|
Discard inferior status, we're not at the same point
|
|
|
|
we started at. */
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
discard_infcall_control_state (inf_status);
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
|
2003-04-24 00:12:40 +02:00
|
|
|
/* FIXME: Insert a bunch of wrap_here; name can be very
|
|
|
|
long if it's a C++ name with arguments and stuff. */
|
2011-01-07 18:35:27 +01:00
|
|
|
error (_("\
|
|
|
|
The program being debugged was signaled while in a function called from GDB.\n\
|
|
|
|
GDB remains in the frame where the signal was received.\n\
|
|
|
|
To change this behavior use \"set unwindonsignal on\".\n\
|
|
|
|
Evaluation of the expression containing the function\n\
|
|
|
|
(%s) will be abandoned.\n\
|
|
|
|
When the function is done executing, GDB will silently stop."),
|
2003-04-24 00:12:40 +02:00
|
|
|
name);
|
|
|
|
}
|
|
|
|
}
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2010-03-25 21:48:53 +01:00
|
|
|
if (stop_stack_dummy == STOP_STD_TERMINATE)
|
2003-04-24 00:12:40 +02:00
|
|
|
{
|
2010-03-25 21:48:53 +01:00
|
|
|
/* We must get back to the frame we were before the dummy
|
|
|
|
call. */
|
Associate dummy_frame with ptid
This patch is to add ptid into dummy_frame and extend frame_id to
dummy_frame_id (which has a ptid field). With this change, GDB uses
dummy_frame_id (thread ptid and frame_id) to find the dummy frames.
Currently, dummy frames are looked up by frame_id, which isn't
accurate in non-stop or multi-process mode. The test case
gdb.multi/dummy-frame-restore.exp shows the problem and this patch can
fix it.
Test dummy-frame-restore.exp makes two inferiors stop at
different functions, say, inferior 1 stops at f1 while inferior 2
stops at f2. Set a breakpoint to a function, do the inferior call
in two inferiors, and GDB has two dummy frames of the same frame_id.
When the inferior call is finished, GDB will look up a dummy frame
from its stack/list and restore the inferior's regcache. Two
inferiors are finished in different orders, the inferiors' states are
restored differently, which is wrong. Running dummy-frame-restore.exp
under un-patched GDB, we'll get two fails:
FAIL: gdb.multi/dummy-frame-restore.exp: inf 2 first: after infcall: bt in inferior 2
FAIL: gdb.multi/dummy-frame-restore.exp: inf 2 first: after infcall: bt in inferior 1
With this patch applied, GDB will choose the correct dummy_frame to
restore for a given inferior, because ptid is considered when looking up
dummy frames. Two fails above are fixed.
Regression tested on x86_64-linux, both native and gdbserver.
gdb:
2014-06-27 Yao Qi <yao@codesourcery.com>
* breakpoint.c (check_longjmp_breakpoint_for_call_dummy):
Change parameter type to 'struct thread_info *'. Caller
updated.
* breakpoint.h (check_longjmp_breakpoint_for_call_dummy):
Update declaration.
* dummy-frame.c (struct dummy_frame_id): New.
(dummy_frame_id_eq): New function.
(struct dummy_frame) <id>: Change its type to 'struct
dummy_frame_id'.
(dummy_frame_push): Add parameter ptid and save it in
dummy_frame_id.
(pop_dummy_frame_bpt): Use ptid of dummy_frame instead of
inferior_ptid.
(pop_dummy_frame): Assert that the ptid of dummy_frame equals
to inferior_ptid.
(lookup_dummy_frame): Change parameter type to 'struct
dummy_frame_id *'. Callers updated. Call dummy_frame_id_eq
instead of frame_id_eq.
(dummy_frame_pop): Add parameter ptid. Callers updated.
Update comments. Compose dummy_frame_id and pass it to
lookup_dummy_frame.
(dummy_frame_discard): Add parameter ptid.
(dummy_frame_sniffer): Compose dummy_frame_id and call
dummy_frame_id_eq instead of frame_id_eq.
(fprint_dummy_frames): Print ptid.
* dummy-frame.h: Remove comments.
(dummy_frame_push): Add ptid in declaration.
(dummy_frame_pop, dummy_frame_discard): Likewise.
gdb/testsuite:
2014-06-27 Yao Qi <yao@codesourcery.com>
* gdb.multi/dummy-frame-restore.exp: New.
* gdb.multi/dummy-frame-restore.c: New.
gdb/doc:
2014-06-27 Yao Qi <yao@codesourcery.com>
* gdb.texinfo (Maintenance Commands): Update the output of
'maint print dummy-frames' command.
2014-06-25 05:52:52 +02:00
|
|
|
dummy_frame_pop (dummy_id, call_thread_ptid);
|
2009-06-15 14:11:37 +02:00
|
|
|
|
2010-03-25 21:48:53 +01:00
|
|
|
/* We also need to restore inferior status to that before
|
|
|
|
the dummy call. */
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
restore_infcall_control_state (inf_status);
|
2010-03-25 21:48:53 +01:00
|
|
|
|
2011-01-07 18:35:27 +01:00
|
|
|
error (_("\
|
|
|
|
The program being debugged entered a std::terminate call, most likely\n\
|
|
|
|
caused by an unhandled C++ exception. GDB blocked this call in order\n\
|
|
|
|
to prevent the program from being terminated, and has restored the\n\
|
|
|
|
context to its original state before the call.\n\
|
|
|
|
To change this behaviour use \"set unwind-on-terminating-exception off\".\n\
|
|
|
|
Evaluation of the expression containing the function (%s)\n\
|
|
|
|
will be abandoned."),
|
2010-03-25 21:48:53 +01:00
|
|
|
name);
|
|
|
|
}
|
|
|
|
else if (stop_stack_dummy == STOP_NONE)
|
|
|
|
{
|
|
|
|
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
/* We hit a breakpoint inside the FUNCTION.
|
|
|
|
Keep the dummy frame, the user may want to examine its state.
|
|
|
|
Discard inferior status, we're not at the same point
|
|
|
|
we started at. */
|
gdb/
Rename and move inferior_thread_state and inferior_status.
* gdbthread.h (struct thread_control_state): New struct, move fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step and stop_bpstat here from struct thread_info.
(struct thread_suspend_state): New struct, move field stop_signal here
from struct thread_info.
(struct thread_info): Move the fields above from this struct.
* inferior.h: Move the inferior_thread_state and inferior_status
declarations comment to their definitions at infrun.c.
(struct inferior_control_state): New struct, move field stop_soon from
struct inferior here.
(struct inferior_suspend_state): New empty struct.
(struct inferior): New fields control and suspend. Move out field
stop_soon.
* infrun.c (struct inferior_thread_state): Rename to ...
(infcall_suspend_state): ... here. Replace field stop_signal by
fields thread_suspend and inferior_suspend.
(save_inferior_thread_state): Rename to ...
(save_infcall_suspend_state): ... here. New variable inf. Update the
code for new fields.
(restore_inferior_thread_state): Rename to ...
(restore_infcall_suspend_state): ... here. New variable inf. Update
the code for new fields.
(do_restore_inferior_thread_state_cleanup): Rename to ...
(do_restore_infcall_suspend_state_cleanup): ... here.
(make_cleanup_restore_inferior_thread_state): Rename to ...
(make_cleanup_restore_infcall_suspend_state): ... here.
(discard_inferior_thread_state): Rename to ...
(discard_infcall_suspend_state): ... here.
(get_inferior_thread_state_regcache): Rename to ...
(get_infcall_suspend_state_regcache): ... here.
(struct inferior_status): Rename to ...
(struct infcall_control_state): ... here. Replace fields
step_range_start, step_range_end, step_frame_id, step_stack_frame_id,
trap_expected, proceed_to_finish, in_infcall, step_over_calls,
stop_step, stop_bpstat and stop_soon by fields thread_control and
inferior_control.
(save_inferior_status): Rename to ...
(save_infcall_control_state): ... here. Update the code for new
fields.
(restore_inferior_status): Rename to ...
(restore_infcall_control_state): ... here. Update the code for new
fields.
(do_restore_inferior_status_cleanup): Rename to ...
(do_restore_infcall_control_state_cleanup): ... here.
(make_cleanup_restore_inferior_status): Rename to ...
(make_cleanup_restore_infcall_control_state): ... here.
(discard_inferior_status): Rename to ...
(discard_infcall_control_state): ... here.
* alpha-tdep.c, breakpoint.c, dummy-frame.c, dummy-frame.h,
exceptions.c, fbsd-nat.c, gdbthread.h, infcall.c, infcmd.c,
inferior.c, inferior.h, infrun.c, linux-nat.c, mi/mi-interp.c,
mips-tdep.c, procfs.c, solib-irix.c, solib-osf.c, solib-spu.c,
solib-sunos.c, solib-svr4.c, thread.c, windows-nat.c: Update all the
references to the moved fields and renamed functions.
2010-11-28 05:31:25 +01:00
|
|
|
discard_infcall_control_state (inf_status);
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
|
2003-04-24 00:12:40 +02:00
|
|
|
/* The following error message used to say "The expression
|
|
|
|
which contained the function call has been discarded."
|
|
|
|
It is a hard concept to explain in a few words. Ideally,
|
|
|
|
GDB would be able to resume evaluation of the expression
|
|
|
|
when the function finally is done executing. Perhaps
|
|
|
|
someday this will be implemented (it would not be easy). */
|
|
|
|
/* FIXME: Insert a bunch of wrap_here; name can be very long if it's
|
|
|
|
a C++ name with arguments and stuff. */
|
2011-01-07 18:35:27 +01:00
|
|
|
error (_("\
|
|
|
|
The program being debugged stopped while in a function called from GDB.\n\
|
|
|
|
Evaluation of the expression containing the function\n\
|
|
|
|
(%s) will be abandoned.\n\
|
|
|
|
When the function is done executing, GDB will silently stop."),
|
* dummy-frame.c (dummy_frame): Replace regcache member with
caller_state.
(dummy_frame_push): Replace caller_regcache arg with caller_state.
All callers updated.
(remove_dummy_frame,pop_dummy_frame,lookup_dummy_frame): New fns.
(dummy_frame_pop): Rewrite. Verify requested frame is in the
dummy frame stack. Restore program state.
(cleanup_dummy_frames): Rewrite.
(dummy_frame_sniffer): Update. Make static.
* dummy-frame.h (regcache,frame_info): Delete forward decls.
(inferior_thread_state): New forward decl.
(dummy_frame_push): Update prototype.
* frame.c (frame_pop): dummy_frame_pop now does all the work for
DUMMY_FRAMEs.
* infcall.c (breakpoint_auto_delete_contents): Delete.
(get_function_name,run_inferior_call): New fns.
(call_function_by_hand): Simplify by moving some code to
get_function_name, run_inferior_call. Inferior function call wrapped
in TRY_CATCH so there's less need for cleanups and all exits from
proceed are handled similarily. Detect program exit.
Detect program stopping in a different thread.
Make error messages more consistent.
* inferior.h (inferior_thread_state): Declare (opaque type).
(save_inferior_thread_state,restore_inferior_thread_state,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state, get_inferior_thread_state_regcache):
Declare.
(save_inferior_status): Update prototype.
* infrun.c: (normal_stop): When stopped for the completion of an
inferior function call, verify the expected stack frame kind.
(inferior_thread_state): New struct.
(save_inferior_thread_state,restore_inferior_thread_state,
do_restore_inferior_thread_state_cleanup,
make_cleanup_restore_inferior_thread_state,
discard_inferior_thread_state,
get_inferior_thread_state_regcache): New functions.
(inferior_status): Move stop_signal, stop_pc, registers to
inferior_thread_state. Remove restore_stack_info.
(save_inferior_status): Remove arg restore_stack_info.
All callers updated. Remove saving of state now saved by
save_inferior_thread_state.
(restore_inferior_status): Remove restoration of state now done by
restore_inferior_thread_state.
(discard_inferior_status): Remove freeing of registers, now done by
discard_inferior_thread_state.
* gdb.base/break.exp: Update expected gdb output.
* gdb.base/sepdebug.exp: Ditto.
* gdb.mi/mi-syn-frame.exp: Ditto.
* gdb.mi/mi2-syn-frame.exp: Ditto.
* gdb.base/call-signal-resume.exp: New file.
* gdb.base/call-signals.c: New file.
* gdb.base/unwindonsignal.exp: New file.
* gdb.base/unwindonsignal.c: New file.
* gdb.threads/interrupted-hand-call.exp: New file.
* gdb.threads/interrupted-hand-call.c: New file.
* gdb.threads/thread-unwindonsignal.exp: New file.
2009-01-19 20:05:01 +01:00
|
|
|
name);
|
2003-04-24 00:12:40 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
}
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
2015-09-09 19:23:24 +02:00
|
|
|
/* The above code errors out, so ... */
|
|
|
|
gdb_assert_not_reached ("... should not be here");
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
_initialize_infcall (void)
|
|
|
|
{
|
|
|
|
add_setshow_boolean_cmd ("coerce-float-to-double", class_obscure,
|
2005-02-14 Andrew Cagney <cagney@gnu.org>
Mark up add_setshow functions, replace "PRINT:" comment prefix
with "FIXME: i18n:".
* aix-thread.c, alpha-tdep.c, arm-tdep.c, breakpoint.c: Update.
* cris-tdep.c, dwarf2read.c, frame.c, hppa-tdep.c: Update.
* infcall.c, m32r-rom.c, maint.c, mips-tdep.c: Update.
* nto-tdep.c, observer.c, remote-rdi.c, remote.c: Update.
* target.c, cli/cli-logging.c: Update.
2005-02-14 17:18:43 +01:00
|
|
|
&coerce_float_to_double_p, _("\
|
|
|
|
Set coercion of floats to doubles when calling functions."), _("\
|
|
|
|
Show coercion of floats to doubles when calling functions"), _("\
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
Variables of type float should generally be converted to doubles before\n\
|
|
|
|
calling an unprototyped function, and left alone when calling a prototyped\n\
|
|
|
|
function. However, some older debug info formats do not provide enough\n\
|
|
|
|
information to determine that a function is prototyped. If this flag is\n\
|
|
|
|
set, GDB will perform the conversion for a function it considers\n\
|
|
|
|
unprototyped.\n\
|
2005-02-14 Andrew Cagney <cagney@gnu.org>
Mark up add_setshow functions, replace "PRINT:" comment prefix
with "FIXME: i18n:".
* aix-thread.c, alpha-tdep.c, arm-tdep.c, breakpoint.c: Update.
* cris-tdep.c, dwarf2read.c, frame.c, hppa-tdep.c: Update.
* infcall.c, m32r-rom.c, maint.c, mips-tdep.c: Update.
* nto-tdep.c, observer.c, remote-rdi.c, remote.c: Update.
* target.c, cli/cli-logging.c: Update.
2005-02-14 17:18:43 +01:00
|
|
|
The default is to perform the conversion.\n"),
|
2005-02-17 Andrew Cagney <cagney@gnu.org>
* cli/cli-decode.c (add_setshow_cmd_full, add_setshow_enum_cmd)
(add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd)
(add_setshow_filename_cmd, add_setshow_string_cmd)
(add_setshow_uinteger_cmd, add_setshow_zinteger_cmd): Delete
fprint_setshow parameter.
* command.h (fprint_setshow_ftype): Delete.
(add_setshow_cmd_full, add_setshow_enum_cmd)
(add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd)
(add_setshow_filename_cmd, add_setshow_string_cmd)
(add_setshow_uinteger_cmd, add_setshow_zinteger_cmd): Delete
fprint_setshow parameter.
* aix-thread.c, alpha-tdep.c, arm-tdep.c, breakpoint.c: Update.
* complaints.c, cris-tdep.c, dwarf2read.c, frame.c: Update.
* hppa-tdep.c, infcall.c, m32r-rom.c, maint.c: Update.
* mips-tdep.c, nto-tdep.c, observer.c, remote-rdi.c: Update
* remote.c, target.c, cli/cli-logging.c: Update.
2005-02-17 14:49:56 +01:00
|
|
|
NULL,
|
2005-02-24 Andrew Cagney <cagney@gnu.org>
Add show_VARIABLE functions, update add_setshow call.
* varobj.c (_initialize_varobj, show_varobjdebug): Add and update.
* valprint.c (_initialize_valprint, show_print_max)
(show_stop_print_at_null, show_repeat_count_threshold)
(show_prettyprint_structs, show_unionprint)
(show_prettyprint_arrays, show_addressprint, show_input_radix)
(show_output_radix): Ditto.
* valops.c (_initialize_valops, show_overload_resolution): Ditto.
* utils.c (initialize_utils, show_chars_per_line)
(show_lines_per_page, show_demangle, show_pagination_enabled)
(show_sevenbit_strings, show_asm_demangle): Ditto
* tui/tui-win.c (_initialize_tui_win, show_tui_border_kind)
(show_tui_border_mode, show_tui_active_border_mode): Ditto.
* top.c (init_main, show_new_async_prompt)
(show_async_command_editing_p, show_write_history_p)
(show_history_size, show_history_filename, show_caution)
(show_annotation_level, init_main): Ditto.
* target.c (initialize_targets, show_targetdebug)
(show_trust_readonly): Ditto.
* symfile.c (_initialize_symfile, show_symbol_reloading)
(show_ext_args, show_download_write_size)
(show_debug_file_directory): Ditto.
* source.c (_initialize_source, show_lines_to_list): Ditto.
* solib.c (_initialize_solib, show_auto_solib_add)
(show_solib_search_path): Ditto.
* p-valprint.c (_initialize_pascal_valprint)
(show_pascal_static_field_print): Ditto.
* printcmd.c (_initialize_printcmd, show_max_symbolic_offset)
(show_print_symbol_filename): Add and update.
* parse.c (_initialize_parse, show_expressiondebug): Dito.
* observer.c (_initialize_observer, show_observer_debug): Dito.
* maint.c (_initialize_maint_cmds, show_watchdog)
(show_maintenance_profile_p): Dito.
* linux-nat.c (_initialize_linux_nat, show_debug_linux_nat): Dito.
* infrun.c (_initialize_infrun, show_debug_infrun)
(show_stop_on_solib_events, show_follow_fork_mode_string)
(show_scheduler_mode, show_step_stop_if_no_debug): Ditto.
* infcall.c (_initialize_infcall, show_coerce_float_to_double_p)
(show_unwind_on_signal_p): Ditto.
* gdbtypes.c (build_gdbtypes, show_opaque_type_resolution)
(_initialize_gdbtypes, show_overload_debug): Ditto.
* gdb-events.c, gdb-events.sh (_initialize_gdb_events)
(show_gdb_events_debug): Ditto.
* gdbarch.c, gdbarch.sh (show_gdbarch_debug)
(_initialize_gdbarch): Ditto.
* frame.c (_initialize_frame, show_backtrace_past_main)
(show_backtrace_past_entry, show_backtrace_limit)
(show_frame_debug): Ditto.
* exec.c (_initialize_exec, show_write_files): Ditto.
* dwarf2read.c (_initialize_dwarf2_read)
(show_dwarf2_max_cache_age): Ditto.
* demangle.c (_initialize_demangler)
(show_demangling_style_names): Ditto.
* dcache.c (_initialize_dcache, show_dcache_enabled_p): Ditto.
* cp-valprint.c (show_static_field_print)
(_initialize_cp_valprint, show_vtblprint, show_objectprint): Ditto.
* corefile.c (_initialize_core, show_gnutarget_string): Ditto.
* cli/cli-logging.c (_initialize_cli_logging)
(show_logging_overwrite, show_logging_redirect)
(show_logging_filename): Ditto.
* cli/cli-cmds.c (show_info_verbose, show_history_expansion_p)
(init_cli_cmds, show_baud_rate, show_remote_debug)
(show_remote_timeout, show_max_user_call_depth): Ditto.
* charset.c (show_host_charset_name, show_target_charset_name)
(initialize_charset): Ditto.
* breakpoint.c (show_can_use_hw_watchpoints)
(show_pending_break_support, _initialize_breakpoint): Ditto.
2005-02-24 14:51:36 +01:00
|
|
|
show_coerce_float_to_double_p,
|
2005-02-17 Andrew Cagney <cagney@gnu.org>
* cli/cli-decode.c (add_setshow_cmd_full, add_setshow_enum_cmd)
(add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd)
(add_setshow_filename_cmd, add_setshow_string_cmd)
(add_setshow_uinteger_cmd, add_setshow_zinteger_cmd): Delete
fprint_setshow parameter.
* command.h (fprint_setshow_ftype): Delete.
(add_setshow_cmd_full, add_setshow_enum_cmd)
(add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd)
(add_setshow_filename_cmd, add_setshow_string_cmd)
(add_setshow_uinteger_cmd, add_setshow_zinteger_cmd): Delete
fprint_setshow parameter.
* aix-thread.c, alpha-tdep.c, arm-tdep.c, breakpoint.c: Update.
* complaints.c, cris-tdep.c, dwarf2read.c, frame.c: Update.
* hppa-tdep.c, infcall.c, m32r-rom.c, maint.c: Update.
* mips-tdep.c, nto-tdep.c, observer.c, remote-rdi.c: Update
* remote.c, target.c, cli/cli-logging.c: Update.
2005-02-17 14:49:56 +01:00
|
|
|
&setlist, &showlist);
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
|
|
|
|
add_setshow_boolean_cmd ("unwindonsignal", no_class,
|
2005-02-14 Andrew Cagney <cagney@gnu.org>
Mark up add_setshow functions, replace "PRINT:" comment prefix
with "FIXME: i18n:".
* aix-thread.c, alpha-tdep.c, arm-tdep.c, breakpoint.c: Update.
* cris-tdep.c, dwarf2read.c, frame.c, hppa-tdep.c: Update.
* infcall.c, m32r-rom.c, maint.c, mips-tdep.c: Update.
* nto-tdep.c, observer.c, remote-rdi.c, remote.c: Update.
* target.c, cli/cli-logging.c: Update.
2005-02-14 17:18:43 +01:00
|
|
|
&unwind_on_signal_p, _("\
|
|
|
|
Set unwinding of stack if a signal is received while in a call dummy."), _("\
|
|
|
|
Show unwinding of stack if a signal is received while in a call dummy."), _("\
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
The unwindonsignal lets the user determine what gdb should do if a signal\n\
|
|
|
|
is received while in a function called from gdb (call dummy). If set, gdb\n\
|
|
|
|
unwinds the stack and restore the context to what as it was before the call.\n\
|
2005-02-14 Andrew Cagney <cagney@gnu.org>
Mark up add_setshow functions, replace "PRINT:" comment prefix
with "FIXME: i18n:".
* aix-thread.c, alpha-tdep.c, arm-tdep.c, breakpoint.c: Update.
* cris-tdep.c, dwarf2read.c, frame.c, hppa-tdep.c: Update.
* infcall.c, m32r-rom.c, maint.c, mips-tdep.c: Update.
* nto-tdep.c, observer.c, remote-rdi.c, remote.c: Update.
* target.c, cli/cli-logging.c: Update.
2005-02-14 17:18:43 +01:00
|
|
|
The default is to stop in the frame where the signal was received."),
|
2005-02-17 Andrew Cagney <cagney@gnu.org>
* cli/cli-decode.c (add_setshow_cmd_full, add_setshow_enum_cmd)
(add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd)
(add_setshow_filename_cmd, add_setshow_string_cmd)
(add_setshow_uinteger_cmd, add_setshow_zinteger_cmd): Delete
fprint_setshow parameter.
* command.h (fprint_setshow_ftype): Delete.
(add_setshow_cmd_full, add_setshow_enum_cmd)
(add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd)
(add_setshow_filename_cmd, add_setshow_string_cmd)
(add_setshow_uinteger_cmd, add_setshow_zinteger_cmd): Delete
fprint_setshow parameter.
* aix-thread.c, alpha-tdep.c, arm-tdep.c, breakpoint.c: Update.
* complaints.c, cris-tdep.c, dwarf2read.c, frame.c: Update.
* hppa-tdep.c, infcall.c, m32r-rom.c, maint.c: Update.
* mips-tdep.c, nto-tdep.c, observer.c, remote-rdi.c: Update
* remote.c, target.c, cli/cli-logging.c: Update.
2005-02-17 14:49:56 +01:00
|
|
|
NULL,
|
2005-02-24 Andrew Cagney <cagney@gnu.org>
Add show_VARIABLE functions, update add_setshow call.
* varobj.c (_initialize_varobj, show_varobjdebug): Add and update.
* valprint.c (_initialize_valprint, show_print_max)
(show_stop_print_at_null, show_repeat_count_threshold)
(show_prettyprint_structs, show_unionprint)
(show_prettyprint_arrays, show_addressprint, show_input_radix)
(show_output_radix): Ditto.
* valops.c (_initialize_valops, show_overload_resolution): Ditto.
* utils.c (initialize_utils, show_chars_per_line)
(show_lines_per_page, show_demangle, show_pagination_enabled)
(show_sevenbit_strings, show_asm_demangle): Ditto
* tui/tui-win.c (_initialize_tui_win, show_tui_border_kind)
(show_tui_border_mode, show_tui_active_border_mode): Ditto.
* top.c (init_main, show_new_async_prompt)
(show_async_command_editing_p, show_write_history_p)
(show_history_size, show_history_filename, show_caution)
(show_annotation_level, init_main): Ditto.
* target.c (initialize_targets, show_targetdebug)
(show_trust_readonly): Ditto.
* symfile.c (_initialize_symfile, show_symbol_reloading)
(show_ext_args, show_download_write_size)
(show_debug_file_directory): Ditto.
* source.c (_initialize_source, show_lines_to_list): Ditto.
* solib.c (_initialize_solib, show_auto_solib_add)
(show_solib_search_path): Ditto.
* p-valprint.c (_initialize_pascal_valprint)
(show_pascal_static_field_print): Ditto.
* printcmd.c (_initialize_printcmd, show_max_symbolic_offset)
(show_print_symbol_filename): Add and update.
* parse.c (_initialize_parse, show_expressiondebug): Dito.
* observer.c (_initialize_observer, show_observer_debug): Dito.
* maint.c (_initialize_maint_cmds, show_watchdog)
(show_maintenance_profile_p): Dito.
* linux-nat.c (_initialize_linux_nat, show_debug_linux_nat): Dito.
* infrun.c (_initialize_infrun, show_debug_infrun)
(show_stop_on_solib_events, show_follow_fork_mode_string)
(show_scheduler_mode, show_step_stop_if_no_debug): Ditto.
* infcall.c (_initialize_infcall, show_coerce_float_to_double_p)
(show_unwind_on_signal_p): Ditto.
* gdbtypes.c (build_gdbtypes, show_opaque_type_resolution)
(_initialize_gdbtypes, show_overload_debug): Ditto.
* gdb-events.c, gdb-events.sh (_initialize_gdb_events)
(show_gdb_events_debug): Ditto.
* gdbarch.c, gdbarch.sh (show_gdbarch_debug)
(_initialize_gdbarch): Ditto.
* frame.c (_initialize_frame, show_backtrace_past_main)
(show_backtrace_past_entry, show_backtrace_limit)
(show_frame_debug): Ditto.
* exec.c (_initialize_exec, show_write_files): Ditto.
* dwarf2read.c (_initialize_dwarf2_read)
(show_dwarf2_max_cache_age): Ditto.
* demangle.c (_initialize_demangler)
(show_demangling_style_names): Ditto.
* dcache.c (_initialize_dcache, show_dcache_enabled_p): Ditto.
* cp-valprint.c (show_static_field_print)
(_initialize_cp_valprint, show_vtblprint, show_objectprint): Ditto.
* corefile.c (_initialize_core, show_gnutarget_string): Ditto.
* cli/cli-logging.c (_initialize_cli_logging)
(show_logging_overwrite, show_logging_redirect)
(show_logging_filename): Ditto.
* cli/cli-cmds.c (show_info_verbose, show_history_expansion_p)
(init_cli_cmds, show_baud_rate, show_remote_debug)
(show_remote_timeout, show_max_user_call_depth): Ditto.
* charset.c (show_host_charset_name, show_target_charset_name)
(initialize_charset): Ditto.
* breakpoint.c (show_can_use_hw_watchpoints)
(show_pending_break_support, _initialize_breakpoint): Ditto.
2005-02-24 14:51:36 +01:00
|
|
|
show_unwind_on_signal_p,
|
2005-02-17 Andrew Cagney <cagney@gnu.org>
* cli/cli-decode.c (add_setshow_cmd_full, add_setshow_enum_cmd)
(add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd)
(add_setshow_filename_cmd, add_setshow_string_cmd)
(add_setshow_uinteger_cmd, add_setshow_zinteger_cmd): Delete
fprint_setshow parameter.
* command.h (fprint_setshow_ftype): Delete.
(add_setshow_cmd_full, add_setshow_enum_cmd)
(add_setshow_auto_boolean_cmd, add_setshow_boolean_cmd)
(add_setshow_filename_cmd, add_setshow_string_cmd)
(add_setshow_uinteger_cmd, add_setshow_zinteger_cmd): Delete
fprint_setshow parameter.
* aix-thread.c, alpha-tdep.c, arm-tdep.c, breakpoint.c: Update.
* complaints.c, cris-tdep.c, dwarf2read.c, frame.c: Update.
* hppa-tdep.c, infcall.c, m32r-rom.c, maint.c: Update.
* mips-tdep.c, nto-tdep.c, observer.c, remote-rdi.c: Update
* remote.c, target.c, cli/cli-logging.c: Update.
2005-02-17 14:49:56 +01:00
|
|
|
&setlist, &showlist);
|
2009-06-15 14:11:37 +02:00
|
|
|
|
|
|
|
add_setshow_boolean_cmd ("unwind-on-terminating-exception", no_class,
|
|
|
|
&unwind_on_terminating_exception_p, _("\
|
|
|
|
Set unwinding of stack if std::terminate is called while in call dummy."), _("\
|
2011-01-05 23:22:53 +01:00
|
|
|
Show unwinding of stack if std::terminate() is called while in a call dummy."),
|
|
|
|
_("\
|
2009-06-15 14:11:37 +02:00
|
|
|
The unwind on terminating exception flag lets the user determine\n\
|
|
|
|
what gdb should do if a std::terminate() call is made from the\n\
|
|
|
|
default exception handler. If set, gdb unwinds the stack and restores\n\
|
|
|
|
the context to what it was before the call. If unset, gdb allows the\n\
|
|
|
|
std::terminate call to proceed.\n\
|
|
|
|
The default is to unwind the frame."),
|
|
|
|
NULL,
|
|
|
|
show_unwind_on_terminating_exception_p,
|
|
|
|
&setlist, &showlist);
|
|
|
|
|
2003-04-21 Andrew Cagney <cagney@redhat.com>
* infcall.c: New file.
* infcall.h: New file.
* valarith.c: Include "infcall.h".
* scm-lang.c, objc-lang.cm, hppa-tdep.c, gcore.c: Ditto.
* eval.c, ada-valprint.c, ada-lang.c: Ditto.
* Makefile.in (valarith.o, scm-lang.o): Update dependencies.
(objc-lang.o, hppa-tdep.o, gcore.o): Update dependencies.
(eval.o, ada-valprint.o, ada-lang.o): Update dependencies.
(SFILES): Add "infcall.c"
(COMMON_OBS): Add "infcall.o".
(infcall.o): Specify dependencies.
* value.h (call_function_by_hand): Delete declaration.
* inferior.h (run_stack_dummy): Delete declaration.
* infcmd.c (breakpoint_auto_delete_contents): Move to "infcall.c".
(run_stack_dummy): Move to "infcall.c", merged into
call_function_by_hand.
* valops.c (call_function_by_hand): Moved to "infcall.c".
(find_function_addr, value_arg_coerce): Ditto.
(unwindonsignal_p, coerce_float_to_double): Ditto.
(_initialize_valops): Move "set/show coerce-float-to-double", and
"set/show unwindonsignal" commands to "infcall.c".
* v850-tdep.c, target.h: Update comments.
* sparc-tdep.c (sparc_fix_call_dummy): Update comments.
* sh-tdep.c (sh_init_extra_frame_info): Update comments.
(sh64_init_extra_frame_info): Update comments.
* mn10300-tdep.c: Update comments.
* mcore-tdep.c (mcore_init_extra_frame_info): Update comments.
* config/sparc/tm-sparc.h: Update comments.
* breakpoint.h: Update comments.
* avr-tdep.c (avr_init_extra_frame_info): Update comments.
* arm-tdep.c: Update comment.
2003-04-21 18:48:41 +02:00
|
|
|
}
|