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authorMichael Snyder <msnyder@vmware.com>2010-02-12 21:28:25 +0000
committerMichael Snyder <msnyder@vmware.com>2010-02-12 21:28:25 +0000
commite5829bee48c894d1178e472345f0a9b1a4aaddaf (patch)
treec7fc824486f76a8825c6f54b737a5f2df3b483c2 /gdb/mi/mi-main.c
parent3381116249433c4b03de8c30868c2e7d11ef9d43 (diff)
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2010-02-12 Tomas Holmberg <th@virtutech.com>
* mi/mi-main.c: Added the --reverse flag to the following MI commands: exec-continue, exec-finish, exec-next, exec-step, exec-next-instruction, exec-step-instruction. This is to support reverse execution over the MI interface to gdb.
Diffstat (limited to 'gdb/mi/mi-main.c')
-rw-r--r--gdb/mi/mi-main.c71
1 files changed, 63 insertions, 8 deletions
diff --git a/gdb/mi/mi-main.c b/gdb/mi/mi-main.c
index 3604893..bdffd23 100644
--- a/gdb/mi/mi-main.c
+++ b/gdb/mi/mi-main.c
@@ -121,35 +121,50 @@ void
mi_cmd_exec_next (char *command, char **argv, int argc)
{
/* FIXME: Should call a libgdb function, not a cli wrapper. */
- mi_execute_async_cli_command ("next", argv, argc);
+ if (argc > 0 && strcmp(argv[0], "--reverse") == 0)
+ mi_execute_async_cli_command ("reverse-next", argv + 1, argc - 1);
+ else
+ mi_execute_async_cli_command ("next", argv, argc);
}
void
mi_cmd_exec_next_instruction (char *command, char **argv, int argc)
{
/* FIXME: Should call a libgdb function, not a cli wrapper. */
- mi_execute_async_cli_command ("nexti", argv, argc);
+ if (argc > 0 && strcmp(argv[0], "--reverse") == 0)
+ mi_execute_async_cli_command ("reverse-nexti", argv + 1, argc - 1);
+ else
+ mi_execute_async_cli_command ("nexti", argv, argc);
}
void
mi_cmd_exec_step (char *command, char **argv, int argc)
{
/* FIXME: Should call a libgdb function, not a cli wrapper. */
- mi_execute_async_cli_command ("step", argv, argc);
+ if (argc > 0 && strcmp(argv[0], "--reverse") == 0)
+ mi_execute_async_cli_command ("reverse-step", argv + 1, argc - 1);
+ else
+ mi_execute_async_cli_command ("step", argv, argc);
}
void
mi_cmd_exec_step_instruction (char *command, char **argv, int argc)
{
/* FIXME: Should call a libgdb function, not a cli wrapper. */
- mi_execute_async_cli_command ("stepi", argv, argc);
+ if (argc > 0 && strcmp(argv[0], "--reverse") == 0)
+ mi_execute_async_cli_command ("reverse-stepi", argv + 1, argc - 1);
+ else
+ mi_execute_async_cli_command ("stepi", argv, argc);
}
void
mi_cmd_exec_finish (char *command, char **argv, int argc)
{
/* FIXME: Should call a libgdb function, not a cli wrapper. */
- mi_execute_async_cli_command ("finish", argv, argc);
+ if (argc > 0 && strcmp(argv[0], "--reverse") == 0)
+ mi_execute_async_cli_command ("reverse-finish", argv + 1, argc - 1);
+ else
+ mi_execute_async_cli_command ("finish", argv, argc);
}
void
@@ -195,8 +210,8 @@ proceed_thread_callback (struct thread_info *thread, void *arg)
return 0;
}
-void
-mi_cmd_exec_continue (char *command, char **argv, int argc)
+static void
+exec_continue (char **argv, int argc)
{
if (argc == 0)
continue_1 (0);
@@ -217,7 +232,47 @@ mi_cmd_exec_continue (char *command, char **argv, int argc)
do_cleanups (old_chain);
}
else
- error ("Usage: -exec-continue [--all|--thread-group id]");
+ error ("Usage: -exec-continue [--reverse] [--all|--thread-group id]");
+}
+
+/* continue in reverse direction:
+ XXX: code duplicated from reverse.c */
+
+static void
+exec_direction_default (void *notused)
+{
+ /* Return execution direction to default state. */
+ execution_direction = EXEC_FORWARD;
+}
+
+static void
+exec_reverse_continue (char **argv, int argc)
+{
+ 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."));
+
+ if (!target_can_execute_reverse)
+ error (_("Target %s does not support this command."), target_shortname);
+
+ old_chain = make_cleanup (exec_direction_default, NULL);
+ execution_direction = EXEC_REVERSE;
+ exec_continue (argv, argc);
+ do_cleanups (old_chain);
+}
+
+void
+mi_cmd_exec_continue (char *command, char **argv, int argc)
+{
+ if (argc > 0 && strcmp(argv[0], "--reverse") == 0)
+ exec_reverse_continue (argv + 1, argc - 1);
+ else
+ exec_continue (argv, argc);
}
static int