/* Multi-process/thread control for GDB, the GNU debugger.
- Copyright 1986, 1987, 1988, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001
- Free Software Foundation, Inc.
+
+ Copyright 1986, 1987, 1988, 1993, 1994, 1995, 1996, 1997, 1998,
+ 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+
Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA.
-
This file is part of GDB.
#include "command.h"
#include "gdbcmd.h"
#include "regcache.h"
+#include "gdb.h"
+#include "gdb_string.h"
#include <ctype.h>
#include <sys/types.h>
#include <signal.h>
-#ifdef UI_OUT
#include "ui-out.h"
-#endif
/*#include "lynxos-core.h" */
static void switch_to_thread (ptid_t ptid);
static void prune_threads (void);
+void
+delete_step_resume_breakpoint (void *arg)
+{
+ struct breakpoint **breakpointp = (struct breakpoint **) arg;
+ struct thread_info *tp;
+
+ if (*breakpointp != NULL)
+ {
+ delete_breakpoint (*breakpointp);
+ for (tp = thread_list; tp; tp = tp->next)
+ if (tp->step_resume_breakpoint == *breakpointp)
+ tp->step_resume_breakpoint = NULL;
+
+ *breakpointp = NULL;
+ }
+}
+
static void
free_thread (struct thread_info *tp)
{
{
struct thread_info *tp;
- tp = (struct thread_info *) xmalloc (sizeof (struct thread_info));
-
+ tp = (struct thread_info *) xmalloc (sizeof (*tp));
+ memset (tp, 0, sizeof (*tp));
tp->ptid = ptid;
tp->num = ++highest_thread_num;
- tp->prev_pc = 0;
- tp->prev_func_start = 0;
- tp->prev_func_name = NULL;
- tp->step_range_start = 0;
- tp->step_range_end = 0;
- tp->step_frame_address = 0;
- tp->step_resume_breakpoint = 0;
- tp->through_sigtramp_breakpoint = 0;
- tp->handling_longjmp = 0;
- tp->trap_expected = 0;
- tp->another_trap = 0;
- tp->stepping_through_solib_after_catch = 0;
- tp->stepping_through_solib_catchpoints = NULL;
- tp->stepping_through_sigtramp = 0;
tp->next = thread_list;
- tp->private = NULL;
thread_list = tp;
return tp;
}
return 0; /* Never heard of 'im */
}
-#ifdef UI_OUT
+
/* Print a list of thread ids currently known, and the total number of
threads. To be used from within catch_errors. */
-static int
-do_captured_list_thread_ids (void *arg)
+static int
+do_captured_list_thread_ids (struct ui_out *uiout, void *arg)
{
struct thread_info *tp;
int num = 0;
+ struct cleanup *cleanup_chain;
+
+ prune_threads ();
+ target_find_new_threads ();
- ui_out_list_begin (uiout, "thread-ids");
+ cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "thread-ids");
for (tp = thread_list; tp; tp = tp->next)
{
ui_out_field_int (uiout, "thread-id", tp->num);
}
- ui_out_list_end (uiout);
+ do_cleanups (cleanup_chain);
ui_out_field_int (uiout, "number-of-threads", num);
return GDB_RC_OK;
}
/* Official gdblib interface function to get a list of thread ids and
the total number. */
enum gdb_rc
-gdb_list_thread_ids (/* output object */)
+gdb_list_thread_ids (struct ui_out *uiout)
{
- return catch_errors (do_captured_list_thread_ids, NULL,
- NULL, RETURN_MASK_ALL);
+ return catch_exceptions (uiout, do_captured_list_thread_ids, NULL,
+ NULL, RETURN_MASK_ALL);
}
-#endif
/* Load infrun state for the thread PID. */
void
-load_infrun_state (ptid_t ptid, CORE_ADDR *prev_pc, CORE_ADDR *prev_func_start,
- char **prev_func_name, int *trap_expected,
+load_infrun_state (ptid_t ptid,
+ CORE_ADDR *prev_pc,
+ int *trap_expected,
struct breakpoint **step_resume_breakpoint,
struct breakpoint **through_sigtramp_breakpoint,
- CORE_ADDR *step_range_start, CORE_ADDR *step_range_end,
- CORE_ADDR *step_frame_address, int *handling_longjmp,
- int *another_trap, int *stepping_through_solib_after_catch,
+ CORE_ADDR *step_range_start,
+ CORE_ADDR *step_range_end,
+ struct frame_id *step_frame_id,
+ int *handling_longjmp,
+ int *another_trap,
+ int *stepping_through_solib_after_catch,
bpstat *stepping_through_solib_catchpoints,
- int *stepping_through_sigtramp)
+ int *stepping_through_sigtramp,
+ int *current_line,
+ struct symtab **current_symtab, CORE_ADDR *step_sp)
{
struct thread_info *tp;
return;
*prev_pc = tp->prev_pc;
- *prev_func_start = tp->prev_func_start;
- *prev_func_name = tp->prev_func_name;
+ *trap_expected = tp->trap_expected;
*step_resume_breakpoint = tp->step_resume_breakpoint;
+ *through_sigtramp_breakpoint = tp->through_sigtramp_breakpoint;
*step_range_start = tp->step_range_start;
*step_range_end = tp->step_range_end;
- *step_frame_address = tp->step_frame_address;
- *through_sigtramp_breakpoint = tp->through_sigtramp_breakpoint;
+ *step_frame_id = tp->step_frame_id;
*handling_longjmp = tp->handling_longjmp;
- *trap_expected = tp->trap_expected;
*another_trap = tp->another_trap;
- *stepping_through_solib_after_catch = tp->stepping_through_solib_after_catch;
- *stepping_through_solib_catchpoints = tp->stepping_through_solib_catchpoints;
+ *stepping_through_solib_after_catch =
+ tp->stepping_through_solib_after_catch;
+ *stepping_through_solib_catchpoints =
+ tp->stepping_through_solib_catchpoints;
*stepping_through_sigtramp = tp->stepping_through_sigtramp;
+ *current_line = tp->current_line;
+ *current_symtab = tp->current_symtab;
+ *step_sp = tp->step_sp;
}
/* Save infrun state for the thread PID. */
void
-save_infrun_state (ptid_t ptid, CORE_ADDR prev_pc, CORE_ADDR prev_func_start,
- char *prev_func_name, int trap_expected,
+save_infrun_state (ptid_t ptid,
+ CORE_ADDR prev_pc,
+ int trap_expected,
struct breakpoint *step_resume_breakpoint,
struct breakpoint *through_sigtramp_breakpoint,
- CORE_ADDR step_range_start, CORE_ADDR step_range_end,
- CORE_ADDR step_frame_address, int handling_longjmp,
- int another_trap, int stepping_through_solib_after_catch,
+ CORE_ADDR step_range_start,
+ CORE_ADDR step_range_end,
+ const struct frame_id *step_frame_id,
+ int handling_longjmp,
+ int another_trap,
+ int stepping_through_solib_after_catch,
bpstat stepping_through_solib_catchpoints,
- int stepping_through_sigtramp)
+ int stepping_through_sigtramp,
+ int current_line,
+ struct symtab *current_symtab, CORE_ADDR step_sp)
{
struct thread_info *tp;
return;
tp->prev_pc = prev_pc;
- tp->prev_func_start = prev_func_start;
- tp->prev_func_name = prev_func_name;
+ tp->trap_expected = trap_expected;
tp->step_resume_breakpoint = step_resume_breakpoint;
+ tp->through_sigtramp_breakpoint = through_sigtramp_breakpoint;
tp->step_range_start = step_range_start;
tp->step_range_end = step_range_end;
- tp->step_frame_address = step_frame_address;
- tp->through_sigtramp_breakpoint = through_sigtramp_breakpoint;
+ tp->step_frame_id = (*step_frame_id);
tp->handling_longjmp = handling_longjmp;
- tp->trap_expected = trap_expected;
tp->another_trap = another_trap;
tp->stepping_through_solib_after_catch = stepping_through_solib_after_catch;
tp->stepping_through_solib_catchpoints = stepping_through_solib_catchpoints;
tp->stepping_through_sigtramp = stepping_through_sigtramp;
+ tp->current_line = current_line;
+ tp->current_symtab = current_symtab;
+ tp->step_sp = step_sp;
}
/* Return true if TP is an active thread. */
struct thread_info *tp;
ptid_t current_ptid;
struct frame_info *cur_frame;
- int saved_frame_level = selected_frame_level;
+ int saved_frame_level = frame_relative_level (get_selected_frame ());
int counter;
char *extra_info;
- /* Avoid coredumps which would happen if we tried to access a NULL
- selected_frame. */
- if (!target_has_stack)
- error ("No stack.");
+ /* Check that there really is a frame. This happens when a simulator
+ is connected but not loaded or running, for instance. */
+ if (legacy_frame_p (current_gdbarch) && saved_frame_level < 0)
+ error ("No frame.");
prune_threads ();
target_find_new_threads ();
puts_filtered (" ");
switch_to_thread (tp->ptid);
- if (selected_frame)
- print_only_stack_frame (selected_frame, -1, 0);
- else
- printf_filtered ("[No stack.]\n");
+ print_stack_frame (get_selected_frame (), -1, 0);
}
switch_to_thread (current_ptid);
* of the stack (leaf frame).
*/
counter = saved_frame_level;
- cur_frame = find_relative_frame (selected_frame, &counter);
+ cur_frame = find_relative_frame (get_selected_frame (), &counter);
if (counter != 0)
{
/* Ooops, can't restore, tell user where we are. */
warning ("Couldn't restore frame in current thread, at frame 0");
- print_stack_frame (selected_frame, -1, 0);
+ print_stack_frame (get_selected_frame (), -1, 0);
}
else
{
- select_frame (cur_frame, saved_frame_level);
+ select_frame (cur_frame);
}
/* re-show current frame. */
flush_cached_frames ();
registers_changed ();
stop_pc = read_pc ();
- select_frame (get_current_frame (), 0);
+ select_frame (get_current_frame ());
}
static void
restore_current_thread (ptid_t ptid)
{
- if (! ptid_equal (ptid, inferior_ptid))
+ if (!ptid_equal (ptid, inferior_ptid))
{
switch_to_thread (ptid);
print_stack_frame (get_current_frame (), 0, -1);
switch_to_thread (tp->ptid);
#ifdef HPUXHPPA
printf_filtered ("\nThread %d (%s):\n",
- tp->num,
- target_tid_to_str (inferior_ptid));
+ tp->num, target_tid_to_str (inferior_ptid));
#else
printf_filtered ("\nThread %d (%s):\n", tp->num,
target_pid_to_str (inferior_ptid));
#endif
execute_command (cmd, from_tty);
- strcpy (cmd, saved_cmd); /* Restore exact command used previously */
+ strcpy (cmd, saved_cmd); /* Restore exact command used previously */
}
do_cleanups (saved_cmd_cleanup_chain);
return;
}
- gdb_thread_select (tidstr);
+ gdb_thread_select (uiout, tidstr);
}
static int
-do_captured_thread_select (void *tidstr)
+do_captured_thread_select (struct ui_out *uiout, void *tidstr)
{
int num;
struct thread_info *tp;
tp = find_thread_id (num);
-#ifdef UI_OUT
if (!tp)
error ("Thread ID %d not known.", num);
-#else
- if (!tp)
- error ("Thread ID %d not known. Use the \"info threads\" command to\n\
-see the IDs of currently known threads.", num);
-#endif
if (!thread_alive (tp))
error ("Thread ID %d has terminated.\n", num);
switch_to_thread (tp->ptid);
-#ifdef UI_OUT
ui_out_text (uiout, "[Switching to thread ");
ui_out_field_int (uiout, "new-thread-id", pid_to_thread_id (inferior_ptid));
ui_out_text (uiout, " (");
ui_out_text (uiout, target_pid_to_str (inferior_ptid));
#endif
ui_out_text (uiout, ")]");
-#else /* UI_OUT */
- printf_filtered ("[Switching to thread %d (%s)]\n",
- pid_to_thread_id (inferior_ptid),
-#if defined(HPUXHPPA)
- target_tid_to_str (inferior_ptid)
-#else
- target_pid_to_str (inferior_ptid)
-#endif
- );
-#endif /* UI_OUT */
- print_stack_frame (selected_frame, selected_frame_level, 1);
+ print_stack_frame (deprecated_selected_frame,
+ frame_relative_level (deprecated_selected_frame), 1);
return GDB_RC_OK;
}
enum gdb_rc
-gdb_thread_select (char *tidstr)
+gdb_thread_select (struct ui_out *uiout, char *tidstr)
{
- return catch_errors (do_captured_thread_select, tidstr,
- NULL, RETURN_MASK_ALL);
+ return catch_exceptions (uiout, do_captured_thread_select, tidstr,
+ NULL, RETURN_MASK_ALL);
}
/* Commands with a prefix of `thread'. */
add_prefix_cmd ("thread", class_run, thread_command,
"Use this command to switch between threads.\n\
-The new thread ID must be currently known.", &thread_cmd_list, "thread ", 1,
- &cmdlist);
+The new thread ID must be currently known.", &thread_cmd_list, "thread ", 1, &cmdlist);
add_prefix_cmd ("apply", class_run, thread_apply_command,
"Apply a command to a list of threads.",
&thread_apply_list, "apply ", 1, &thread_cmd_list);
add_cmd ("all", class_run, thread_apply_all_command,
- "Apply a command to all threads.",
- &thread_apply_list);
+ "Apply a command to all threads.", &thread_apply_list);
if (!xdb_commands)
add_com_alias ("t", "thread", class_run, 1);
projects / deliverable / binutils-gdb.git / blobdiff