binutils-gdb/gdb/reverse.c

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2008-10-17 Michael Snyder <msnyder@vmware.com> Target interface for reverse debugging. * target.h (enum target_waitkind): Add new wait event, TARGET_WAITKIND_NO_HISTORY. (struct target_ops): New method to_can_execute_reverse. (target_can_execute_reverse): New macro. * target.c (update_current_target): Inherit to_can_execute_reverse. Remote interface for reverse debugging. * remote.c (remote_can_execute_reverse): New target method. (remote_resume): Check for reverse exec direction, and send appropriate command to target. (remote_wait_as): Check target response for NO_HISTORY status. Also check for empty reply (target doesn't understand "bs" or "bc). (remote_vcont_resume): Jump out if attempting reverse execution. Event handling interface for reverse debugging. * infrun.c (execution_direction): New state variable. (enum inferior_stop_reason): Add NO_HISTORY reason. (handle_inferior_event): Handle TARGET_WAITKIND_NO_HISTORY. Handle stepping over a function call in reverse. Handle stepping thru a line range in reverse. Handle setting a step-resume breakpoint in reverse. Handle stepping into a function in reverse. Handle stepping between line ranges in reverse. (print_stop_reason): Print reason for NO_HISTORY. (step_into_function): Rename to handle_step_into_function. (handle_step_into_function_backward): New function. (set_exec_direction_func, show_exec_direction_func): New funcs. (proceed): No need to singlestep over a breakpoint when resuming in reverse. * inferior.h (enum exec_direction_kind): New enum. (execution_direction): Export new execution state variable. * breakpoint.c (make_breakpoint_silent): New function. * breakpoint.h (make_breakpoint_silent): Export. * infcmd.c (finish_command): Check for reverse exec direction. (finish_backward): New function, handle finish cmd in reverse. User interface for reverse execution. * Makefile.in (reverse.c): New file. * reverse.c: New file. User interface for reverse execution.
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/* Reverse execution and reverse debugging.
Copyright (C) 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
2008-10-17 Michael Snyder <msnyder@vmware.com> Target interface for reverse debugging. * target.h (enum target_waitkind): Add new wait event, TARGET_WAITKIND_NO_HISTORY. (struct target_ops): New method to_can_execute_reverse. (target_can_execute_reverse): New macro. * target.c (update_current_target): Inherit to_can_execute_reverse. Remote interface for reverse debugging. * remote.c (remote_can_execute_reverse): New target method. (remote_resume): Check for reverse exec direction, and send appropriate command to target. (remote_wait_as): Check target response for NO_HISTORY status. Also check for empty reply (target doesn't understand "bs" or "bc). (remote_vcont_resume): Jump out if attempting reverse execution. Event handling interface for reverse debugging. * infrun.c (execution_direction): New state variable. (enum inferior_stop_reason): Add NO_HISTORY reason. (handle_inferior_event): Handle TARGET_WAITKIND_NO_HISTORY. Handle stepping over a function call in reverse. Handle stepping thru a line range in reverse. Handle setting a step-resume breakpoint in reverse. Handle stepping into a function in reverse. Handle stepping between line ranges in reverse. (print_stop_reason): Print reason for NO_HISTORY. (step_into_function): Rename to handle_step_into_function. (handle_step_into_function_backward): New function. (set_exec_direction_func, show_exec_direction_func): New funcs. (proceed): No need to singlestep over a breakpoint when resuming in reverse. * inferior.h (enum exec_direction_kind): New enum. (execution_direction): Export new execution state variable. * breakpoint.c (make_breakpoint_silent): New function. * breakpoint.h (make_breakpoint_silent): Export. * infcmd.c (finish_command): Check for reverse exec direction. (finish_backward): New function, handle finish cmd in reverse. User interface for reverse execution. * Makefile.in (reverse.c): New file. * reverse.c: New file. User interface for reverse execution.
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This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
2008-10-17 Michael Snyder <msnyder@vmware.com> Target interface for reverse debugging. * target.h (enum target_waitkind): Add new wait event, TARGET_WAITKIND_NO_HISTORY. (struct target_ops): New method to_can_execute_reverse. (target_can_execute_reverse): New macro. * target.c (update_current_target): Inherit to_can_execute_reverse. Remote interface for reverse debugging. * remote.c (remote_can_execute_reverse): New target method. (remote_resume): Check for reverse exec direction, and send appropriate command to target. (remote_wait_as): Check target response for NO_HISTORY status. Also check for empty reply (target doesn't understand "bs" or "bc). (remote_vcont_resume): Jump out if attempting reverse execution. Event handling interface for reverse debugging. * infrun.c (execution_direction): New state variable. (enum inferior_stop_reason): Add NO_HISTORY reason. (handle_inferior_event): Handle TARGET_WAITKIND_NO_HISTORY. Handle stepping over a function call in reverse. Handle stepping thru a line range in reverse. Handle setting a step-resume breakpoint in reverse. Handle stepping into a function in reverse. Handle stepping between line ranges in reverse. (print_stop_reason): Print reason for NO_HISTORY. (step_into_function): Rename to handle_step_into_function. (handle_step_into_function_backward): New function. (set_exec_direction_func, show_exec_direction_func): New funcs. (proceed): No need to singlestep over a breakpoint when resuming in reverse. * inferior.h (enum exec_direction_kind): New enum. (execution_direction): Export new execution state variable. * breakpoint.c (make_breakpoint_silent): New function. * breakpoint.h (make_breakpoint_silent): Export. * infcmd.c (finish_command): Check for reverse exec direction. (finish_backward): New function, handle finish cmd in reverse. User interface for reverse execution. * Makefile.in (reverse.c): New file. * reverse.c: New file. User interface for reverse execution.
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(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
2008-10-17 Michael Snyder <msnyder@vmware.com> Target interface for reverse debugging. * target.h (enum target_waitkind): Add new wait event, TARGET_WAITKIND_NO_HISTORY. (struct target_ops): New method to_can_execute_reverse. (target_can_execute_reverse): New macro. * target.c (update_current_target): Inherit to_can_execute_reverse. Remote interface for reverse debugging. * remote.c (remote_can_execute_reverse): New target method. (remote_resume): Check for reverse exec direction, and send appropriate command to target. (remote_wait_as): Check target response for NO_HISTORY status. Also check for empty reply (target doesn't understand "bs" or "bc). (remote_vcont_resume): Jump out if attempting reverse execution. Event handling interface for reverse debugging. * infrun.c (execution_direction): New state variable. (enum inferior_stop_reason): Add NO_HISTORY reason. (handle_inferior_event): Handle TARGET_WAITKIND_NO_HISTORY. Handle stepping over a function call in reverse. Handle stepping thru a line range in reverse. Handle setting a step-resume breakpoint in reverse. Handle stepping into a function in reverse. Handle stepping between line ranges in reverse. (print_stop_reason): Print reason for NO_HISTORY. (step_into_function): Rename to handle_step_into_function. (handle_step_into_function_backward): New function. (set_exec_direction_func, show_exec_direction_func): New funcs. (proceed): No need to singlestep over a breakpoint when resuming in reverse. * inferior.h (enum exec_direction_kind): New enum. (execution_direction): Export new execution state variable. * breakpoint.c (make_breakpoint_silent): New function. * breakpoint.h (make_breakpoint_silent): Export. * infcmd.c (finish_command): Check for reverse exec direction. (finish_backward): New function, handle finish cmd in reverse. User interface for reverse execution. * Makefile.in (reverse.c): New file. * reverse.c: New file. User interface for reverse execution.
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#include "defs.h"
#include "gdb_string.h"
#include "target.h"
#include "top.h"
#include "cli/cli-cmds.h"
#include "cli/cli-decode.h"
#include "inferior.h"
#include "regcache.h"
2008-10-17 Michael Snyder <msnyder@vmware.com> Target interface for reverse debugging. * target.h (enum target_waitkind): Add new wait event, TARGET_WAITKIND_NO_HISTORY. (struct target_ops): New method to_can_execute_reverse. (target_can_execute_reverse): New macro. * target.c (update_current_target): Inherit to_can_execute_reverse. Remote interface for reverse debugging. * remote.c (remote_can_execute_reverse): New target method. (remote_resume): Check for reverse exec direction, and send appropriate command to target. (remote_wait_as): Check target response for NO_HISTORY status. Also check for empty reply (target doesn't understand "bs" or "bc). (remote_vcont_resume): Jump out if attempting reverse execution. Event handling interface for reverse debugging. * infrun.c (execution_direction): New state variable. (enum inferior_stop_reason): Add NO_HISTORY reason. (handle_inferior_event): Handle TARGET_WAITKIND_NO_HISTORY. Handle stepping over a function call in reverse. Handle stepping thru a line range in reverse. Handle setting a step-resume breakpoint in reverse. Handle stepping into a function in reverse. Handle stepping between line ranges in reverse. (print_stop_reason): Print reason for NO_HISTORY. (step_into_function): Rename to handle_step_into_function. (handle_step_into_function_backward): New function. (set_exec_direction_func, show_exec_direction_func): New funcs. (proceed): No need to singlestep over a breakpoint when resuming in reverse. * inferior.h (enum exec_direction_kind): New enum. (execution_direction): Export new execution state variable. * breakpoint.c (make_breakpoint_silent): New function. * breakpoint.h (make_breakpoint_silent): Export. * infcmd.c (finish_command): Check for reverse exec direction. (finish_backward): New function, handle finish cmd in reverse. User interface for reverse execution. * Makefile.in (reverse.c): New file. * reverse.c: New file. User interface for reverse execution.
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/* User interface:
reverse-step, reverse-next etc. */
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static void
exec_direction_default (void *notused)
2008-10-17 Michael Snyder <msnyder@vmware.com> Target interface for reverse debugging. * target.h (enum target_waitkind): Add new wait event, TARGET_WAITKIND_NO_HISTORY. (struct target_ops): New method to_can_execute_reverse. (target_can_execute_reverse): New macro. * target.c (update_current_target): Inherit to_can_execute_reverse. Remote interface for reverse debugging. * remote.c (remote_can_execute_reverse): New target method. (remote_resume): Check for reverse exec direction, and send appropriate command to target. (remote_wait_as): Check target response for NO_HISTORY status. Also check for empty reply (target doesn't understand "bs" or "bc). (remote_vcont_resume): Jump out if attempting reverse execution. Event handling interface for reverse debugging. * infrun.c (execution_direction): New state variable. (enum inferior_stop_reason): Add NO_HISTORY reason. (handle_inferior_event): Handle TARGET_WAITKIND_NO_HISTORY. Handle stepping over a function call in reverse. Handle stepping thru a line range in reverse. Handle setting a step-resume breakpoint in reverse. Handle stepping into a function in reverse. Handle stepping between line ranges in reverse. (print_stop_reason): Print reason for NO_HISTORY. (step_into_function): Rename to handle_step_into_function. (handle_step_into_function_backward): New function. (set_exec_direction_func, show_exec_direction_func): New funcs. (proceed): No need to singlestep over a breakpoint when resuming in reverse. * inferior.h (enum exec_direction_kind): New enum. (execution_direction): Export new execution state variable. * breakpoint.c (make_breakpoint_silent): New function. * breakpoint.h (make_breakpoint_silent): Export. * infcmd.c (finish_command): Check for reverse exec direction. (finish_backward): New function, handle finish cmd in reverse. User interface for reverse execution. * Makefile.in (reverse.c): New file. * reverse.c: New file. User interface for reverse execution.
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{
/* Return execution direction to default state. */
execution_direction = EXEC_FORWARD;
}
/* exec_reverse_once -- accepts an arbitrary gdb command (string),
and executes it with exec-direction set to 'reverse'.
Used to implement reverse-next etc. commands. */
static void
exec_reverse_once (char *cmd, char *args, int from_tty)
{
char *reverse_command;
enum exec_direction_kind dir = execution_direction;
struct cleanup *old_chain;
if (dir == EXEC_ERROR)
error (_("Target %s does not support this command."), target_shortname);
if (dir == EXEC_REVERSE)
error (_("Already in reverse mode. Use '%s' or 'set exec-dir forward'."),
cmd);
if (!target_can_execute_reverse)
error (_("Target %s does not support this command."), target_shortname);
reverse_command = xstrprintf ("%s %s", cmd, args ? args : "");
old_chain = make_cleanup (exec_direction_default, NULL);
make_cleanup (xfree, reverse_command);
execution_direction = EXEC_REVERSE;
execute_command (reverse_command, from_tty);
do_cleanups (old_chain);
}
static void
reverse_step (char *args, int from_tty)
{
exec_reverse_once ("step", args, from_tty);
}
static void
reverse_stepi (char *args, int from_tty)
{
exec_reverse_once ("stepi", args, from_tty);
}
static void
reverse_next (char *args, int from_tty)
{
exec_reverse_once ("next", args, from_tty);
}
static void
reverse_nexti (char *args, int from_tty)
{
exec_reverse_once ("nexti", args, from_tty);
}
static void
reverse_continue (char *args, int from_tty)
{
exec_reverse_once ("continue", args, from_tty);
}
static void
reverse_finish (char *args, int from_tty)
{
exec_reverse_once ("finish", args, from_tty);
}
/* Data structures for a bookmark list. */
struct bookmark {
struct bookmark *next;
int number;
CORE_ADDR pc;
struct symtab_and_line sal;
gdb_byte *opaque_data;
};
static struct bookmark *bookmark_chain;
static int bookmark_count;
#define ALL_BOOKMARKS(B) for ((B) = bookmark_chain; (B); (B) = (B)->next)
#define ALL_BOOKMARKS_SAFE(B,TMP) \
for ((B) = bookmark_chain; \
(B) ? ((TMP) = (B)->next, 1) : 0; \
(B) = (TMP))
/* save_bookmark_command -- implement "bookmark" command.
Call target method to get a bookmark identifier.
Insert bookmark identifier into list.
Identifier will be a malloc string (gdb_byte *).
Up to us to free it as required. */
static void
save_bookmark_command (char *args, int from_tty)
{
/* Get target's idea of a bookmark. */
gdb_byte *bookmark_id = target_get_bookmark (args, from_tty);
struct bookmark *b, *b1;
struct gdbarch *gdbarch = get_regcache_arch (get_current_regcache ());
/* CR should not cause another identical bookmark. */
dont_repeat ();
if (bookmark_id == NULL)
error (_("target_get_bookmark failed."));
/* Set up a bookmark struct. */
b = xcalloc (1, sizeof (struct bookmark));
b->number = ++bookmark_count;
init_sal (&b->sal);
b->pc = regcache_read_pc (get_current_regcache ());
b->sal = find_pc_line (b->pc, 0);
b->sal.pspace = get_frame_program_space (get_current_frame ());
b->opaque_data = bookmark_id;
b->next = NULL;
/* Add this bookmark to the end of the chain, so that a list
of bookmarks will come out in order of increasing numbers. */
b1 = bookmark_chain;
if (b1 == 0)
bookmark_chain = b;
else
{
while (b1->next)
b1 = b1->next;
b1->next = b;
}
printf_filtered (_("Saved bookmark %d at %s\n"), b->number,
paddress (gdbarch, b->sal.pc));
}
/* Implement "delete bookmark" command. */
static int
delete_one_bookmark (struct bookmark *b)
{
struct bookmark *b1;
/* Special case, first item in list. */
if (b == bookmark_chain)
bookmark_chain = b->next;
/* Find bookmark preceeding "marked" one, so we can unlink. */
if (b)
{
ALL_BOOKMARKS (b1)
if (b1->next == b)
{
/* Found designated bookmark. Unlink and delete. */
b1->next = b->next;
break;
}
xfree (b->opaque_data);
xfree (b);
return 1; /* success */
}
return 0; /* failure */
}
static void
delete_all_bookmarks (void)
{
struct bookmark *b, *b1;
ALL_BOOKMARKS_SAFE (b, b1)
{
xfree (b->opaque_data);
xfree (b);
}
bookmark_chain = NULL;
}
static void
delete_bookmark_command (char *args, int from_tty)
{
struct bookmark *b;
unsigned long num;
if (bookmark_chain == NULL)
{
warning (_("No bookmarks."));
return;
}
if (args == NULL || args[0] == '\0')
{
if (from_tty && !query (_("Delete all bookmarks? ")))
return;
delete_all_bookmarks ();
return;
}
num = strtoul (args, NULL, 0);
/* Find bookmark with corresponding number. */
ALL_BOOKMARKS (b)
if (b->number == num)
break;
if (!delete_one_bookmark (b))
/* Not found. */
error (_("delete bookmark: no bookmark found for '%s'."), args);
}
/* Implement "goto-bookmark" command. */
static void
goto_bookmark_command (char *args, int from_tty)
{
struct bookmark *b;
unsigned long num;
if (args == NULL || args[0] == '\0')
error (_("Command requires an argument."));
if (strncmp (args, "start", strlen ("start")) == 0
|| strncmp (args, "begin", strlen ("begin")) == 0
|| strncmp (args, "end", strlen ("end")) == 0)
{
/* Special case. Give target opportunity to handle. */
target_goto_bookmark (args, from_tty);
return;
}
if (args[0] == '\'' || args[0] == '\"')
{
/* Special case -- quoted string. Pass on to target. */
if (args[strlen (args) - 1] != args[0])
error (_("Unbalanced quotes: %s"), args);
target_goto_bookmark (args, from_tty);
return;
}
/* General case. Bookmark identified by bookmark number. */
num = strtoul (args, NULL, 0);
ALL_BOOKMARKS (b)
if (b->number == num)
break;
if (b)
{
/* Found. Send to target method. */
target_goto_bookmark (b->opaque_data, from_tty);
return;
}
/* Not found. */
error (_("goto-bookmark: no bookmark found for '%s'."), args);
}
/* Implement "info bookmarks" command. */
static void
bookmarks_info (char *args, int from_tty)
{
struct bookmark *b;
int bnum = -1;
struct gdbarch *gdbarch;
if (args)
bnum = parse_and_eval_long (args);
if (!bookmark_chain)
{
printf_filtered (_("No bookmarks.\n"));
return;
}
gdbarch = get_regcache_arch (get_current_regcache ());
printf_filtered (_("Bookmark Address Opaque\n"));
printf_filtered (_(" ID Data\n"));
ALL_BOOKMARKS (b)
printf_filtered (" %d %s '%s'\n",
b->number,
paddress (gdbarch, b->pc),
b->opaque_data);
}
2008-02-21 Pedro Alves <pedro@codesorcery.com> Silence a few -Wmissing-prototypes warnings. PR build/9877: * amd64-nat.c: Include "amd64-nat.h". * fork-child.c (_initialize_fork_child): Ditto. * gcore.c (_initialize_gcore): Ditto. * inf-ptrace.c: Include "inf-ptrace.h". (inf_ptrace_store_registers): Make it static. * linux-nat.c (linux_nat_terminal_ours): Make it static. (_initialize_linux_nat): Declare before definition. * linux-tdep.c: Include "linux-tdep.h". * linux-thread-db.c (_initialize_thread_db): Declare before definition. * proc-service.c (_initialize_proc_service): Ditto. * remote.c (remote_send_printf): Make it static. * solib.c: Include "solib.h". * symfile-mem.c (_initialize_symfile_mem): Declare before definition. * ada-lang.c (ada_la_decode, ada_match_name) (ada_suppress_symbol_printing, ada_is_array_type) (ada_value_ptr_subscript, ada_array_length) (ada_to_static_fixed_value): Make them static. (_initialize_ada_language): Declare before definition. * ada-tasks.c (ada_get_task_number, ada_get_environment_task) (ada_task_list_changed, ada_new_objfile_observer): Make them static. (_initialize_tasks): Declare before definition. * addrmap.c (_initialize_addrmap): Declare before definition. * auxv.c (default_auxv_parse): Make it static. * bfd-target.c (target_bfd_xfer_partial, target_bfd_xclose): Make them static. * breakpoint.c (remove_sal): Add line break. (expand_line_sal_maybe): Make it static. * cp-name-parser.y: Include "cp-support.h". * cp-valprint.c (cp_find_class_member): Make it static. * eval.c (value_f90_subarray): Ditto. * exceptions.c (print_any_exception): Ditto. * findcmd.c (_initialize_mem_search): Declare before definition. * frame.c (frame_observer_target_changed): Make it static. * gnu-v3-abi.c (gnuv3_find_method_in): Make it static. * inf-child.c: Include "inf-child.h". * inferior.h (valid_inferior_id): Rename to ... (valid_gdb_inferior_id): ... this. * infrun.c (infrun_thread_stop_requested, siginfo_make_value): Make them static. * jv-lang.c (java_language_arch_info): Make it static. * m2-typeprint.c (m2_get_discrete_bounds): Ditto. * osdata.c (info_osdata_command): Make it static. * regcache.c (regcache_observer_target_changed): Make it static. * reverse.c (_initialize_reverse): Declare before definition. * stabsread.c (cleanup_undefined_types_noname) (cleanup_undefined_types_1): Make them static. * symfile.c (place_section): Make it static. * symtab.c (find_pc_sect_psymtab_closer): Make it static. * target-descriptions.c (_initialize_target_descriptions): Declare before definition. * target.c (default_get_ada_task_ptid, find_default_can_async_p) (find_default_is_async_p, find_default_supports_non_stop): Make them static. (target_supports_non_stop): Add prototype. (dummy_pid_to_str): Make it static. * utils.c (_initialize_utils): Declare before definition. * ada-exp.y (_initialize_ada_exp): Declare before definition. * solib-svr4.c (HAS_LM_DYNAMIC_FROM_LINK_MAP): Add a prototype. * target.h (struct target_ops): Add a prototype to the to_can_execute_reverse callback. * macroscope.c (_initialize_macroscope): Declare before definition. * cp-namespace.c (_initialize_cp_namespace): Declare before definition. * python/python.c (_initialize_python): Declare before definition. * tui/tui-command.c: Include "tui/tui-command.h". * tui/tui-data.c (init_content_element, init_win_info): Make them static. * tui/tui-disasm.c: Include "tui/tui-disasm.h". * tui/tui-interp.c (_initialize_tui_interp): Declare before definition. * tui/tui-layout.c: Include "tui/tui-layout.h". (_initialize_tui_layout): Declare before definition. * tui/tui-regs.c: Include "tui/tui-regs.h". (tui_display_reg_element_at_line): Make it static. (_initialize_tui_regs): Declare before definition. * tui/tui-stack.c (_initialize_tui_stack): Declare before definition. * tui/tui-win.c: Include "tui/tui-win.h". (_initialize_tui_win): Declare before definition. (tui_sigwinch_handler): Make it static. Wrap in ifdef SIGWINCH. * tui/tui-win.h (tui_sigwinch_handler): Delete declaration. (tui_get_cmd_list): Add a prototype. * tui/tui-windata.c: Include tui-windata.h. * tui/tui-wingeneral.c (box_win): Make it static. * cli/cli-logging.c (show_logging_command): Make it static. (_initialize_cli_logging): Declare before definition. * mi/mi-common.c (_initialize_gdb_mi_common): Declare before definition.
2009-02-21 17:14:50 +01:00
/* Provide a prototype to silence -Wmissing-prototypes. */
extern initialize_file_ftype _initialize_reverse;
2008-10-17 Michael Snyder <msnyder@vmware.com> Target interface for reverse debugging. * target.h (enum target_waitkind): Add new wait event, TARGET_WAITKIND_NO_HISTORY. (struct target_ops): New method to_can_execute_reverse. (target_can_execute_reverse): New macro. * target.c (update_current_target): Inherit to_can_execute_reverse. Remote interface for reverse debugging. * remote.c (remote_can_execute_reverse): New target method. (remote_resume): Check for reverse exec direction, and send appropriate command to target. (remote_wait_as): Check target response for NO_HISTORY status. Also check for empty reply (target doesn't understand "bs" or "bc). (remote_vcont_resume): Jump out if attempting reverse execution. Event handling interface for reverse debugging. * infrun.c (execution_direction): New state variable. (enum inferior_stop_reason): Add NO_HISTORY reason. (handle_inferior_event): Handle TARGET_WAITKIND_NO_HISTORY. Handle stepping over a function call in reverse. Handle stepping thru a line range in reverse. Handle setting a step-resume breakpoint in reverse. Handle stepping into a function in reverse. Handle stepping between line ranges in reverse. (print_stop_reason): Print reason for NO_HISTORY. (step_into_function): Rename to handle_step_into_function. (handle_step_into_function_backward): New function. (set_exec_direction_func, show_exec_direction_func): New funcs. (proceed): No need to singlestep over a breakpoint when resuming in reverse. * inferior.h (enum exec_direction_kind): New enum. (execution_direction): Export new execution state variable. * breakpoint.c (make_breakpoint_silent): New function. * breakpoint.h (make_breakpoint_silent): Export. * infcmd.c (finish_command): Check for reverse exec direction. (finish_backward): New function, handle finish cmd in reverse. User interface for reverse execution. * Makefile.in (reverse.c): New file. * reverse.c: New file. User interface for reverse execution.
2008-10-17 21:43:47 +02:00
void
_initialize_reverse (void)
{
add_com ("reverse-step", class_run, reverse_step, _("\
Step program backward until it reaches the beginning of another source line.\n\
Argument N means do this N times (or till program stops for another reason).")
);
add_com_alias ("rs", "reverse-step", class_alias, 1);
add_com ("reverse-next", class_run, reverse_next, _("\
Step program backward, proceeding through subroutine calls.\n\
Like the \"reverse-step\" command as long as subroutine calls do not happen;\n\
when they do, the call is treated as one instruction.\n\
Argument N means do this N times (or till program stops for another reason).")
);
add_com_alias ("rn", "reverse-next", class_alias, 1);
add_com ("reverse-stepi", class_run, reverse_stepi, _("\
Step backward exactly one instruction.\n\
Argument N means do this N times (or till program stops for another reason).")
);
add_com_alias ("rsi", "reverse-stepi", class_alias, 0);
add_com ("reverse-nexti", class_run, reverse_nexti, _("\
Step backward one instruction, but proceed through called subroutines.\n\
Argument N means do this N times (or till program stops for another reason).")
);
add_com_alias ("rni", "reverse-nexti", class_alias, 0);
add_com ("reverse-continue", class_run, reverse_continue, _("\
Continue program being debugged but run it in reverse.\n\
If proceeding from breakpoint, a number N may be used as an argument,\n\
which means to set the ignore count of that breakpoint to N - 1 (so that\n\
the breakpoint won't break until the Nth time it is reached)."));
add_com_alias ("rc", "reverse-continue", class_alias, 0);
add_com ("reverse-finish", class_run, reverse_finish, _("\
Execute backward until just before selected stack frame is called."));
add_com ("bookmark", class_bookmark, save_bookmark_command, _("\
Set a bookmark in the program's execution history.\n\
A bookmark represents a point in the execution history \n\
that can be returned to at a later point in the debug session."));
add_info ("bookmarks", bookmarks_info, _("\
Status of user-settable bookmarks.\n\
Bookmarks are user-settable markers representing a point in the \n\
execution history that can be returned to later in the same debug \n\
session."));
add_cmd ("bookmark", class_bookmark, delete_bookmark_command, _("\
Delete a bookmark from the bookmark list.\n\
Argument is a bookmark number, or no argument to delete all bookmarks.\n"),
&deletelist);
add_com ("goto-bookmark", class_bookmark, goto_bookmark_command, _("\
Go to an earlier-bookmarked point in the program's execution history.\n\
Argument is the bookmark number of a bookmark saved earlier by using \n\
the 'bookmark' command, or the special arguments:\n\
start (beginning of recording)\n\
end (end of recording)\n"));
2008-10-17 Michael Snyder <msnyder@vmware.com> Target interface for reverse debugging. * target.h (enum target_waitkind): Add new wait event, TARGET_WAITKIND_NO_HISTORY. (struct target_ops): New method to_can_execute_reverse. (target_can_execute_reverse): New macro. * target.c (update_current_target): Inherit to_can_execute_reverse. Remote interface for reverse debugging. * remote.c (remote_can_execute_reverse): New target method. (remote_resume): Check for reverse exec direction, and send appropriate command to target. (remote_wait_as): Check target response for NO_HISTORY status. Also check for empty reply (target doesn't understand "bs" or "bc). (remote_vcont_resume): Jump out if attempting reverse execution. Event handling interface for reverse debugging. * infrun.c (execution_direction): New state variable. (enum inferior_stop_reason): Add NO_HISTORY reason. (handle_inferior_event): Handle TARGET_WAITKIND_NO_HISTORY. Handle stepping over a function call in reverse. Handle stepping thru a line range in reverse. Handle setting a step-resume breakpoint in reverse. Handle stepping into a function in reverse. Handle stepping between line ranges in reverse. (print_stop_reason): Print reason for NO_HISTORY. (step_into_function): Rename to handle_step_into_function. (handle_step_into_function_backward): New function. (set_exec_direction_func, show_exec_direction_func): New funcs. (proceed): No need to singlestep over a breakpoint when resuming in reverse. * inferior.h (enum exec_direction_kind): New enum. (execution_direction): Export new execution state variable. * breakpoint.c (make_breakpoint_silent): New function. * breakpoint.h (make_breakpoint_silent): Export. * infcmd.c (finish_command): Check for reverse exec direction. (finish_backward): New function, handle finish cmd in reverse. User interface for reverse execution. * Makefile.in (reverse.c): New file. * reverse.c: New file. User interface for reverse execution.
2008-10-17 21:43:47 +02:00
}