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a6d9a66e23
* breakpoint.c: Include "arch-utils.h".
(set_raw_breakpoint_without_location): Add GDBARCH parameter.
Use it to set breakpoint architecture.
(set_raw_breakpoint): Add GDBARCH parameter.
(create_internal_breakpoint): Likewise.
(create_catchpoint): Likewise.
(create_fork_vfork_event_catchpoint): Likewise.
(create_breakpoint): Likewise.
(create_breakpoints): Likewise.
(break_command_really): Likewise.
(create_ada_exception_breakpoint): Likewise.
Update local callers to pass architecture:
(create_internal_breakpoint): Update.
(create_overlay_event_breakpoint): Update.
(create_longjmp_master_breakpoint): Update.
(create_thread_event_breakpoint): Update.
(create_solib_event_breakpoint): Update.
(create_catchpoint): Update.
(create_fork_vfork_event_catchpoint): Update.
(set_momentary_breakpoint): Update.
(clone_momentary_breakpoint): Update.
(create_breakpoint): Update.
(create_breakpoints): Update.
(break_command_really): Update.
(break_command_1): Update.
(set_breakpoint): Update.
(watch_command_1): Update.
(catch_fork_command_1): Update.
(catch_exec_commnd_1): Update.
(handle_gnu_v3_exceptions): Update.
(create_ada_exception_breakpoint): Update.
(catch_ada_exception_command): Update.
(catch_assert_command): Update.
(trace_command): Update.
* breakpoint.h (struct bp_location): New member GDBARCH.
* breakpoint.c (get_sal_arch): New function.
(set_raw_breakpoint): Set location architecture.
(add_location_to_breakpoint): Likewise.
(clone_momentary_breakpoint): Likewise.
(watch_command_1): Likewise.
(update_watchpoint): Likewise.
(bp_loc_is_permanent): Use location architecture instead of
current_gdbarch.
(adjust_breakpoint_address): Add GDBARCH parameter; use it
instead of current_gdbarch.
Update callers of adjust_breakpoint_address to pass
breakpoint location architecture:
(set_raw_breakpoint): Update.
(watch_command_1): Update.
* tracepoint.c: (collect_symbol): Add GDBARCH parameter, use instead
of current_gdbarch.
(add_local_symbols): Add GDBARCH parameter. Pass to collect_symbol.
(encode_actions): Pass tracepoint architecture to add_local_symbols
(encode_actions): Use tracepoint architecture instead of
current_gdbarch. Pass it to add_local_symbols and collect_symbol.
* breakpoint.h (struct breakpoint_ops): Replace last_addr parameter
of print_one callback with last_loc.
* breakpoint.c (print_one_breakpoint_location): Replace last_addr
parameter with last_loc.
(print_one_breakpoint): Likewise.
(do_captured_breakpoint_query): Update call.
(breakpoint_1): Pass last_loc instead of last_addr to
print_one_breakpoint. Pass last location architecture instead of
current_gdbarch to set_next_address.
Update all implementations of the print_one callback:
* breakpoint.c (print_one_catch_fork): Update.
(print_one_catch_vfork): Update.
(print_one_catch_exec): Update.
(print_one_exception_catchpoint): Update.
* ada-lang.c (print_one_exception): Update.
(print_one_catch_exception): Update.
(print_one_catch_exception_unhandled): Update.
(print_one_catch_assert): Update.
* breakpoint.c (print_one_breakpoint_location): Add PRINT_ADDRESS_BITS
parameter. Use it instead of gdbarch_addr_bit (current_gdbarch).
(print_one_breakpoint): Add PRINT_ADDRESS_BITS parameter and pass it
to print_one_breakpoint_location.
(breakpoint_address_bits): New function.
(do_captured_breakpoint_query): Compute number of address bits to print
and pass it to print_one_breakpoint.
(breakpoint_1): Likewise. Use it instead of current_gdbarch.
* breakpoint.h (create_thread_event_breakpoint): Add GDBARCH.
* breakpoint.c (create_thread_event_breakpoint): Likewise.
Update callers to create_thread_event_breakpoint:
* aix-thread.c (pd_enable): Update.
* linux-thread-db.c (enable_thread_event): Update.
* breakpoint.h (create_solib_event_breakpoint): Add GDBARCH.
* breakpoint.c (create_solib_event_breakpoint): Likewise.
Update callers to create_solib_event_breakpoint:
* solib-frv.c (enable_break, enable_break2): Update.
* solib-pa64.c (pa64_solib_create_inferior_hook): Update.
* solib-som.c (som_solib_create_inferior_hook): Update.
* solib-darwin.c (darwin_solib_create_inferior_hook): Update.
* solib-svr4.c (enable_break): Update.
* breakpoint.h (insert_single_step_breakpoint): Add GDBARCH.
* breakpoint.c (insert_single_step_breakpoint): Likewise.
Update callers to insert_single_step_breakpoint:
* alpha-tdep.c (alpha_software_single_step): Update.
* arm-linux-tdep.c (arm_linux_software_single_step): Update.
* arm-tdep.c (arm_software_single_step): Update.
* cris-tdep.c (cris_software_single_step): Update.
* rs6000-aix-tdep.c (rs6000_software_single_step): Update.
* rs6000-tdep.c (ppc_deal_with_atomic_sequence): Update.
* sparc-tdep.c (sparc_software_single_step): Update.
* spu-tdep.c (spu_software_single_step): Update.
* mips-tdep.c (deal_with_atomic_sequence): Add GDBARCH parameter.
Pass it to insert_single_step_breakpoint.
(mips_software_single_step): Pass architecture to
deal_with_atomic_sequence and insert_single_step_breakpoint.
* breakpoint.h (deprecated_insert_raw_breakpoint): Add GDBARCH.
(deprecated_remove_raw_breakpoint): Likewise.
* breakpoint.c (deprecated_insert_raw_breakpoint): Add GDBARCH.
(deprecated_remove_raw_breakpoint): Likewise.
Update callers to deprecated_insert_raw_breakpoint and
deprecated_remove_raw_breakpoint:
* breakpoint.c (single_step_gdbarch): New static variable.
(insert_single_step_breakpoint): Pass GDBARCH parameter to
deprecated_insert_raw_breakpoint. Store it in single_step_gdbarch.
(remove_single_step_breakpoints): Pass architecture stored in
single_step_gdbarch to deprecated_remove_raw_breakpoint.
* rs6000-nat.c (exec_one_dummy_insn): Update.
* solib-irix.c (enable_break, disable_break): Update.
* procfs.c (procfs_mourn_inferior): Update.
(remove_dbx_link_breakpoint): Update.
* breakpoint.h (set_breakpoint): Add GDBARCH parameter.
(set_momentary_breakpoint, set_momentary_breakpoint_at_pc): Likewise.
* breakpoint.c (set_breakpoint): Add GDBARCH parameter.
(set_momentary_breakpoint, set_momentary_breakpoint_at_pc): Likewise.
Update callers to set_breakpoint, set_momentary_breakpoint and
set_momentary_breakpoint_at_pc:
* breakpoint.c (set_momentary_breakpoint_at_pc): Update.
(until_break_command): Update.
* infcall.c (call_function_by_hand): Update.
* infcmd.c (finish_backward, finish_forward): Update.
* infrun.c (insert_step_resume_breakpoint_at_sal): Add GDBARCH
parameter. Pass it to set_momentary_breakpoint.
(insert_longjmp_resume_breakpoint): Add GDBARCH parameter.
Pass it to set_momentary_breakpoint_at_pc.
(handle_inferior_event): Update.
(insert_step_resume_breakpoint_at_frame): Update.
(insert_step_resume_breakpoint_at_caller): Update..
* mi/mi-cmd-break.c: Include "arch-utils.h".
(mi_cmd_break_insert): Update.
* target.h (struct target_ops): Add GDBARCH parameter to
to_insert_breakpoint, to_remove_breakpoint, to_insert_hw_breakpoint,
and to_remove_hw_breakpoint members.
(target_insert_breakpoint, target_remove_breakpoint,
target_insert_hw_breakpoint, target_remove_hw_breakpoint): Add GDBARCH
parameter, pass to target routine.
(memory_remove_breakpoint, memory_insert_breakpoint): Add GDBARCH
parameter.
* target.c (debug_to_insert_breakpoint, debug_to_remove_breakpoint,
debug_to_insert_hw_breakpoint, debug_to_remove_hw_breakpoint): Add
GDBARCH parameter, pass to target routine.
(update_current_target): Update function signature.
* breakpoint.c (insert_bp_location, remove_breakpoint,
deprecated_insert_raw_breakpoint, deprecated_remove_raw_breakpoint):
Pass architecture to target_ routines.
Update all implementations of the target breakpoint routines to take
GDBARCH parameter and use it instead of GDBARCH as appropriate:
* corelow.c (ignore): Update.
* exec.c (ignore): Update.
* mem-break.c (memory_insert_breakpoint): Update.
(memory_remove_breakpoint): Update.
* monitor.c (monitor_insert_breakpoint): Update.
(monitor_remove_breakpoint): Update.
* record.c (record_insert_breakpoint): Update.
(record_beneath_to_insert_breakpoint): Update.
(record_remove_breakpoint): Update.
(record_beneath_to_remove_breakpoint): Update.
* remote.c (remote_insert_breakpoint): Update.
(remote_remove_breakpoint): Update.
(remote_insert_hw_breakpoint): Update.
(remote_remove_hw_breakpoint): Update.
* remote-m32r-sdi.c (m32r_insert_breakpoint): Update.
(m32r_remove_breakpoint): Update.
* remote-mips.c (mips_insert_breakpoint): Update.
(mips_remove_breakpoint): Update.
* i386-nat.c (i386_insert_hw_breakpoint): Update.
(i386_remove_hw_breakpoint): Update.
* nto-procfs.c (procfs_insert_breakpoint): Update.
(procfs_remove_breakpoint): Update.
(procfs_insert_hw_breakpoint): Update.
(procfs_remove_hw_breakpoint): Update.
doc/ChangeLog:
* gdbint.texi (Examples of Use of @code{ui_out} functions):
Update example code extrated from breakpoint.c.
93 lines
2.8 KiB
C
93 lines
2.8 KiB
C
/* Simulate breakpoints by patching locations in the target system, for GDB.
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Copyright (C) 1990, 1991, 1992, 1993, 1995, 1997, 1998, 1999, 2000, 2002,
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2007, 2008, 2009 Free Software Foundation, Inc.
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Contributed by Cygnus Support. Written by John Gilmore.
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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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the Free Software Foundation; either version 3 of the License, or
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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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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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/* This file is only useful if BREAKPOINT_FROM_PC is set. If not, we
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punt. */
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#include "symtab.h"
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#include "breakpoint.h"
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#include "inferior.h"
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#include "target.h"
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/* Insert a breakpoint on targets that don't have any better
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breakpoint support. We read the contents of the target location
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and stash it, then overwrite it with a breakpoint instruction.
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BP_TGT->placed_address is the target location in the target
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machine. BP_TGT->shadow_contents is some memory allocated for
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saving the target contents. It is guaranteed by the caller to be
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long enough to save BREAKPOINT_LEN bytes (this is accomplished via
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BREAKPOINT_MAX). */
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int
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default_memory_insert_breakpoint (struct gdbarch *gdbarch,
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struct bp_target_info *bp_tgt)
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{
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int val;
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const unsigned char *bp;
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int bplen;
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/* Determine appropriate breakpoint contents and size for this address. */
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bp = gdbarch_breakpoint_from_pc
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(gdbarch, &bp_tgt->placed_address, &bp_tgt->placed_size);
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if (bp == NULL)
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error (_("Software breakpoints not implemented for this target."));
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/* Save the memory contents. */
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bp_tgt->shadow_len = bp_tgt->placed_size;
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val = target_read_memory (bp_tgt->placed_address, bp_tgt->shadow_contents,
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bp_tgt->placed_size);
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/* Write the breakpoint. */
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if (val == 0)
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val = target_write_memory (bp_tgt->placed_address, bp,
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bp_tgt->placed_size);
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return val;
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}
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int
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default_memory_remove_breakpoint (struct gdbarch *gdbarch,
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struct bp_target_info *bp_tgt)
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{
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return target_write_memory (bp_tgt->placed_address, bp_tgt->shadow_contents,
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bp_tgt->placed_size);
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}
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int
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memory_insert_breakpoint (struct gdbarch *gdbarch,
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struct bp_target_info *bp_tgt)
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{
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return gdbarch_memory_insert_breakpoint (gdbarch, bp_tgt);
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}
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int
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memory_remove_breakpoint (struct gdbarch *gdbarch,
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struct bp_target_info *bp_tgt)
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{
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return gdbarch_memory_remove_breakpoint (gdbarch, bp_tgt);
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}
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