/* Target-struct-independent code to start (run) and stop an inferior
process.
- Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
- 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
- 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 1986-2012 Free Software Foundation, Inc.
This file is part of GDB.
#include "inline-frame.h"
#include "jit.h"
#include "tracepoint.h"
+#include "continuations.h"
+#include "interps.h"
+#include "skip.h"
+#include "probe.h"
+#include "objfiles.h"
/* Prototypes for local functions */
static void handle_command (char *, int);
-static void sig_print_info (enum target_signal);
+static void sig_print_info (enum gdb_signal);
static void sig_print_header (void);
static void print_exited_reason (int exitstatus);
-static void print_signal_exited_reason (enum target_signal siggnal);
+static void print_signal_exited_reason (enum gdb_signal siggnal);
static void print_no_history_reason (void);
-static void print_signal_received_reason (enum target_signal siggnal);
+static void print_signal_received_reason (enum gdb_signal siggnal);
static void print_end_stepping_range_reason (void);
void nullify_last_target_wait_ptid (void);
+static void insert_hp_step_resume_breakpoint_at_frame (struct frame_info *);
+
+static void insert_step_resume_breakpoint_at_caller (struct frame_info *);
+
+static void insert_longjmp_resume_breakpoint (struct gdbarch *, CORE_ADDR);
+
/* When set, stop the 'step' command if we enter a function which has
no line number information. The normal behavior is that we step
over such function. */
fprintf_filtered (file, _("Inferior debugging is %s.\n"), value);
}
+
+/* Support for disabling address space randomization. */
+
+int disable_randomization = 1;
+
+static void
+show_disable_randomization (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ if (target_supports_disable_randomization ())
+ fprintf_filtered (file,
+ _("Disabling randomization of debuggee's "
+ "virtual address space is %s.\n"),
+ value);
+ else
+ fputs_filtered (_("Disabling randomization of debuggee's "
+ "virtual address space is unsupported on\n"
+ "this platform.\n"), file);
+}
+
+static void
+set_disable_randomization (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ if (!target_supports_disable_randomization ())
+ error (_("Disabling randomization of debuggee's "
+ "virtual address space is unsupported on\n"
+ "this platform."));
+}
+
+
/* If the program uses ELF-style shared libraries, then calls to
functions in shared libraries go through stubs, which live in a
table called the PLT (Procedure Linkage Table). The first time the
static unsigned char *signal_print;
static unsigned char *signal_program;
+/* Table of signals that the target may silently handle.
+ This is automatically determined from the flags above,
+ and simply cached here. */
+static unsigned char *signal_pass;
+
#define SET_SIGS(nsigs,sigs,flags) \
do { \
int signum = (nsigs); \
(flags)[signum] = 0; \
} while (0)
+/* Update the target's copy of SIGNAL_PROGRAM. The sole purpose of
+ this function is to avoid exporting `signal_program'. */
+
+void
+update_signals_program_target (void)
+{
+ target_program_signals ((int) GDB_SIGNAL_LAST, signal_program);
+}
+
/* Value to pass to target_resume() to cause all threads to resume. */
#define RESUME_ALL minus_one_ptid
static const char follow_fork_mode_child[] = "child";
static const char follow_fork_mode_parent[] = "parent";
-static const char *follow_fork_mode_kind_names[] = {
+static const char *const follow_fork_mode_kind_names[] = {
follow_fork_mode_child,
follow_fork_mode_parent,
NULL
&& is_running (thread->ptid)
&& !is_executing (thread->ptid)
&& !thread->stop_requested
- && thread->suspend.stop_signal == TARGET_SIGNAL_0)
+ && thread->suspend.stop_signal == GDB_SIGNAL_0)
{
if (debug_infrun)
fprintf_unfiltered (gdb_stdlog,
switch_to_thread (thread->ptid);
clear_proceed_status ();
- proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 0);
+ proceed ((CORE_ADDR) -1, GDB_SIGNAL_DEFAULT, 0);
}
return 0;
pspace = add_program_space (maybe_new_address_space ());
set_current_program_space (pspace);
inf->removable = 1;
+ inf->symfile_flags = SYMFILE_NO_READ;
clone_program_space (pspace, inf->vfork_parent->pspace);
inf->pspace = pspace;
inf->aspace = pspace->aspace;
static const char follow_exec_mode_new[] = "new";
static const char follow_exec_mode_same[] = "same";
-static const char *follow_exec_mode_names[] =
+static const char *const follow_exec_mode_names[] =
{
follow_exec_mode_new,
follow_exec_mode_same,
solib_create_inferior_hook below. breakpoint_re_set would fail to insert
the breakpoints with the zero displacement. */
- symbol_file_add (execd_pathname, SYMFILE_MAINLINE | SYMFILE_DEFER_BP_RESET,
+ symbol_file_add (execd_pathname,
+ (inf->symfile_flags
+ | SYMFILE_MAINLINE | SYMFILE_DEFER_BP_RESET),
NULL, 0);
- set_initial_language ();
+ if ((inf->symfile_flags & SYMFILE_NO_READ) == 0)
+ set_initial_language ();
#ifdef SOLIB_CREATE_INFERIOR_HOOK
SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid));
return state;
}
+/* If inferior is in displaced stepping, and ADDR equals to starting address
+ of copy area, return corresponding displaced_step_closure. Otherwise,
+ return NULL. */
+
+struct displaced_step_closure*
+get_displaced_step_closure_by_addr (CORE_ADDR addr)
+{
+ struct displaced_step_inferior_state *displaced
+ = get_displaced_stepping_state (ptid_get_pid (inferior_ptid));
+
+ /* If checking the mode of displaced instruction in copy area. */
+ if (displaced && !ptid_equal (displaced->step_ptid, null_ptid)
+ && (displaced->step_copy == addr))
+ return displaced->step_closure;
+
+ return NULL;
+}
+
/* Remove the displaced stepping state of process PID. */
static void
static const char can_use_displaced_stepping_auto[] = "auto";
static const char can_use_displaced_stepping_on[] = "on";
static const char can_use_displaced_stepping_off[] = "off";
-static const char *can_use_displaced_stepping_enum[] =
+static const char *const can_use_displaced_stepping_enum[] =
{
can_use_displaced_stepping_auto,
can_use_displaced_stepping_on,
ULONGEST len;
struct displaced_step_closure *closure;
struct displaced_step_inferior_state *displaced;
+ int status;
/* We should never reach this function if the architecture does not
support displaced stepping. */
displaced->step_saved_copy = xmalloc (len);
ignore_cleanups = make_cleanup (free_current_contents,
&displaced->step_saved_copy);
- read_memory (copy, displaced->step_saved_copy, len);
+ status = target_read_memory (copy, displaced->step_saved_copy, len);
+ if (status != 0)
+ throw_error (MEMORY_ERROR,
+ _("Error accessing memory address %s (%s) for "
+ "displaced-stepping scratch space."),
+ paddress (gdbarch, copy), safe_strerror (status));
if (debug_displaced)
{
fprintf_unfiltered (gdb_stdlog, "displaced: saved %s: ",
do_cleanups (ptid_cleanup);
}
+/* Restore the contents of the copy area for thread PTID. */
+
+static void
+displaced_step_restore (struct displaced_step_inferior_state *displaced,
+ ptid_t ptid)
+{
+ ULONGEST len = gdbarch_max_insn_length (displaced->step_gdbarch);
+
+ write_memory_ptid (ptid, displaced->step_copy,
+ displaced->step_saved_copy, len);
+ if (debug_displaced)
+ fprintf_unfiltered (gdb_stdlog, "displaced: restored %s %s\n",
+ target_pid_to_str (ptid),
+ paddress (displaced->step_gdbarch,
+ displaced->step_copy));
+}
+
static void
-displaced_step_fixup (ptid_t event_ptid, enum target_signal signal)
+displaced_step_fixup (ptid_t event_ptid, enum gdb_signal signal)
{
struct cleanup *old_cleanups;
struct displaced_step_inferior_state *displaced
old_cleanups = make_cleanup (displaced_step_clear_cleanup, displaced);
- /* Restore the contents of the copy area. */
- {
- ULONGEST len = gdbarch_max_insn_length (displaced->step_gdbarch);
-
- write_memory_ptid (displaced->step_ptid, displaced->step_copy,
- displaced->step_saved_copy, len);
- if (debug_displaced)
- fprintf_unfiltered (gdb_stdlog, "displaced: restored %s\n",
- paddress (displaced->step_gdbarch,
- displaced->step_copy));
- }
+ displaced_step_restore (displaced, displaced->step_ptid);
/* Did the instruction complete successfully? */
- if (signal == TARGET_SIGNAL_TRAP)
+ if (signal == GDB_SIGNAL_TRAP)
{
/* Fix up the resulting state. */
gdbarch_displaced_step_fixup (displaced->step_gdbarch,
if (gdbarch_displaced_step_hw_singlestep (gdbarch,
displaced->step_closure))
- target_resume (ptid, 1, TARGET_SIGNAL_0);
+ target_resume (ptid, 1, GDB_SIGNAL_0);
else
- target_resume (ptid, 0, TARGET_SIGNAL_0);
+ target_resume (ptid, 0, GDB_SIGNAL_0);
/* Done, we're stepping a thread. */
break;
if (debug_displaced)
fprintf_unfiltered (gdb_stdlog,
- "breakpoint is gone %s: step(%d)\n",
+ "displaced: breakpoint is gone: %s, step(%d)\n",
target_pid_to_str (tp->ptid), step);
- target_resume (ptid, step, TARGET_SIGNAL_0);
- tp->suspend.stop_signal = TARGET_SIGNAL_0;
+ target_resume (ptid, step, GDB_SIGNAL_0);
+ tp->suspend.stop_signal = GDB_SIGNAL_0;
/* This request was discarded. See if there's any other
thread waiting for its turn. */
static const char schedlock_off[] = "off";
static const char schedlock_on[] = "on";
static const char schedlock_step[] = "step";
-static const char *scheduler_enums[] = {
+static const char *const scheduler_enums[] = {
schedlock_off,
schedlock_on,
schedlock_step,
return hw_step;
}
+/* Return a ptid representing the set of threads that we will proceed,
+ in the perspective of the user/frontend. We may actually resume
+ fewer threads at first, e.g., if a thread is stopped at a
+ breakpoint that needs stepping-off, but that should not be visible
+ to the user/frontend, and neither should the frontend/user be
+ allowed to proceed any of the threads that happen to be stopped for
+ internal run control handling, if a previous command wanted them
+ resumed. */
+
+ptid_t
+user_visible_resume_ptid (int step)
+{
+ /* By default, resume all threads of all processes. */
+ ptid_t resume_ptid = RESUME_ALL;
+
+ /* Maybe resume only all threads of the current process. */
+ if (!sched_multi && target_supports_multi_process ())
+ {
+ resume_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid));
+ }
+
+ /* Maybe resume a single thread after all. */
+ if (non_stop)
+ {
+ /* With non-stop mode on, threads are always handled
+ individually. */
+ resume_ptid = inferior_ptid;
+ }
+ else if ((scheduler_mode == schedlock_on)
+ || (scheduler_mode == schedlock_step
+ && (step || singlestep_breakpoints_inserted_p)))
+ {
+ /* User-settable 'scheduler' mode requires solo thread resume. */
+ resume_ptid = inferior_ptid;
+ }
+
+ return resume_ptid;
+}
+
/* Resume the inferior, but allow a QUIT. This is useful if the user
wants to interrupt some lengthy single-stepping operation
(for child processes, the SIGINT goes to the inferior, and so
STEP nonzero if we should step (zero to continue instead).
SIG is the signal to give the inferior (zero for none). */
void
-resume (int step, enum target_signal sig)
+resume (int step, enum gdb_signal sig)
{
int should_resume = 1;
struct cleanup *old_cleanups = make_cleanup (resume_cleanups, 0);
if (debug_infrun)
fprintf_unfiltered (gdb_stdlog,
"infrun: resume (step=%d, signal=%d), "
- "trap_expected=%d\n",
- step, sig, tp->control.trap_expected);
+ "trap_expected=%d, current thread [%s] at %s\n",
+ step, sig, tp->control.trap_expected,
+ target_pid_to_str (inferior_ptid),
+ paddress (gdbarch, pc));
/* Normally, by the time we reach `resume', the breakpoints are either
removed or inserted, as appropriate. The exception is if we're sitting
if (use_displaced_stepping (gdbarch)
&& (tp->control.trap_expected
|| (step && gdbarch_software_single_step_p (gdbarch)))
- && sig == TARGET_SIGNAL_0
+ && sig == GDB_SIGNAL_0
&& !current_inferior ()->waiting_for_vfork_done)
{
struct displaced_step_inferior_state *displaced;
return;
}
+ /* Update pc to reflect the new address from which we will execute
+ instructions due to displaced stepping. */
+ pc = regcache_read_pc (get_thread_regcache (inferior_ptid));
+
displaced = get_displaced_stepping_state (ptid_get_pid (inferior_ptid));
step = gdbarch_displaced_step_hw_singlestep (gdbarch,
displaced->step_closure);
else if (step)
step = maybe_software_singlestep (gdbarch, pc);
+ /* Currently, our software single-step implementation leads to different
+ results than hardware single-stepping in one situation: when stepping
+ into delivering a signal which has an associated signal handler,
+ hardware single-step will stop at the first instruction of the handler,
+ while software single-step will simply skip execution of the handler.
+
+ For now, this difference in behavior is accepted since there is no
+ easy way to actually implement single-stepping into a signal handler
+ without kernel support.
+
+ However, there is one scenario where this difference leads to follow-on
+ problems: if we're stepping off a breakpoint by removing all breakpoints
+ and then single-stepping. In this case, the software single-step
+ behavior means that even if there is a *breakpoint* in the signal
+ handler, GDB still would not stop.
+
+ Fortunately, we can at least fix this particular issue. We detect
+ here the case where we are about to deliver a signal while software
+ single-stepping with breakpoints removed. In this situation, we
+ revert the decisions to remove all breakpoints and insert single-
+ step breakpoints, and instead we install a step-resume breakpoint
+ at the current address, deliver the signal without stepping, and
+ once we arrive back at the step-resume breakpoint, actually step
+ over the breakpoint we originally wanted to step over. */
+ if (singlestep_breakpoints_inserted_p
+ && tp->control.trap_expected && sig != GDB_SIGNAL_0)
+ {
+ /* If we have nested signals or a pending signal is delivered
+ immediately after a handler returns, might might already have
+ a step-resume breakpoint set on the earlier handler. We cannot
+ set another step-resume breakpoint; just continue on until the
+ original breakpoint is hit. */
+ if (tp->control.step_resume_breakpoint == NULL)
+ {
+ insert_hp_step_resume_breakpoint_at_frame (get_current_frame ());
+ tp->step_after_step_resume_breakpoint = 1;
+ }
+
+ remove_single_step_breakpoints ();
+ singlestep_breakpoints_inserted_p = 0;
+
+ insert_breakpoints ();
+ tp->control.trap_expected = 0;
+ }
+
if (should_resume)
{
ptid_t resume_ptid;
/* Decide the set of threads to ask the target to resume. Start
by assuming everything will be resumed, than narrow the set
by applying increasingly restricting conditions. */
-
- /* By default, resume all threads of all processes. */
- resume_ptid = RESUME_ALL;
-
- /* Maybe resume only all threads of the current process. */
- if (!sched_multi && target_supports_multi_process ())
- {
- resume_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid));
- }
+ resume_ptid = user_visible_resume_ptid (step);
/* Maybe resume a single thread after all. */
if (singlestep_breakpoints_inserted_p
breakpoint, not just the one at PC. */
resume_ptid = inferior_ptid;
}
- else if (non_stop)
- {
- /* With non-stop mode on, threads are always handled
- individually. */
- resume_ptid = inferior_ptid;
- }
- else if ((scheduler_mode == schedlock_on)
- || (scheduler_mode == schedlock_step
- && (step || singlestep_breakpoints_inserted_p)))
- {
- /* User-settable 'scheduler' mode requires solo thread resume. */
- resume_ptid = inferior_ptid;
- }
if (gdbarch_cannot_step_breakpoint (gdbarch))
{
/* Avoid confusing the next resume, if the next stop/resume
happens to apply to another thread. */
- tp->suspend.stop_signal = TARGET_SIGNAL_0;
+ tp->suspend.stop_signal = GDB_SIGNAL_0;
+
+ /* Advise target which signals may be handled silently. If we have
+ removed breakpoints because we are stepping over one (which can
+ happen only if we are not using displaced stepping), we need to
+ receive all signals to avoid accidentally skipping a breakpoint
+ during execution of a signal handler. */
+ if ((step || singlestep_breakpoints_inserted_p)
+ && tp->control.trap_expected
+ && !use_displaced_stepping (gdbarch))
+ target_pass_signals (0, NULL);
+ else
+ target_pass_signals ((int) GDB_SIGNAL_LAST, signal_pass);
target_resume (resume_ptid, step, sig);
}
/* Make sure we were stopped at a breakpoint. */
if (wait_status.kind != TARGET_WAITKIND_STOPPED
- || (wait_status.value.sig != TARGET_SIGNAL_TRAP
- && wait_status.value.sig != TARGET_SIGNAL_ILL
- && wait_status.value.sig != TARGET_SIGNAL_SEGV
- && wait_status.value.sig != TARGET_SIGNAL_EMT))
+ || (wait_status.value.sig != GDB_SIGNAL_TRAP
+ && wait_status.value.sig != GDB_SIGNAL_ILL
+ && wait_status.value.sig != GDB_SIGNAL_SEGV
+ && wait_status.value.sig != GDB_SIGNAL_EMT))
{
return 0;
}
/* Switch back to WAIT_PID thread. */
switch_to_thread (wait_ptid);
+ if (debug_infrun)
+ fprintf_unfiltered (gdb_stdlog,
+ "infrun: prepare_to_proceed (step=%d), "
+ "switched to [%s]\n",
+ step, target_pid_to_str (inferior_ptid));
+
/* We return 1 to indicate that there is a breakpoint here,
so we need to step over it before continuing to avoid
hitting it straight away. */
You should call clear_proceed_status before calling proceed. */
void
-proceed (CORE_ADDR addr, enum target_signal siggnal, int step)
+proceed (CORE_ADDR addr, enum gdb_signal siggnal, int step)
{
struct regcache *regcache;
struct gdbarch *gdbarch;
{
/* The target for some reason decided not to resume. */
normal_stop ();
+ if (target_can_async_p ())
+ inferior_event_handler (INF_EXEC_COMPLETE, NULL);
return;
}
+ /* We'll update this if & when we switch to a new thread. */
+ previous_inferior_ptid = inferior_ptid;
+
regcache = get_current_regcache ();
gdbarch = get_regcache_arch (regcache);
aspace = get_regcache_aspace (regcache);
if (last_thread)
{
tp->suspend.stop_signal = last_thread->suspend.stop_signal;
- last_thread->suspend.stop_signal = TARGET_SIGNAL_0;
+ last_thread->suspend.stop_signal = GDB_SIGNAL_0;
}
}
}
- if (siggnal != TARGET_SIGNAL_DEFAULT)
+ if (siggnal != GDB_SIGNAL_DEFAULT)
tp->suspend.stop_signal = siggnal;
/* If this signal should not be seen by program,
give it zero. Used for debugging signals. */
else if (!signal_program[tp->suspend.stop_signal])
- tp->suspend.stop_signal = TARGET_SIGNAL_0;
+ tp->suspend.stop_signal = GDB_SIGNAL_0;
annotate_starting ();
does not support asynchronous execution. */
if (!target_can_async_p ())
{
- wait_for_inferior (0);
+ wait_for_inferior ();
normal_stop ();
}
}
{
struct inferior *inferior;
- init_wait_for_inferior ();
inferior = current_inferior ();
inferior->control.stop_soon = STOP_QUIETLY_REMOTE;
target_open() return to the caller an indication that the target
is currently running and GDB state should be set to the same as
for an async run. */
- wait_for_inferior (0);
+ wait_for_inferior ();
/* Now that the inferior has stopped, do any bookkeeping like
loading shared libraries. We want to do this before normal_stop,
target_last_wait_ptid = minus_one_ptid;
- previous_inferior_ptid = null_ptid;
+ previous_inferior_ptid = inferior_ptid;
init_infwait_state ();
/* Discard any skipped inlined frames. */
struct target_waitstatus ws;
int random_signal;
+ int stop_func_filled_in;
CORE_ADDR stop_func_start;
CORE_ADDR stop_func_end;
- char *stop_func_name;
+ const char *stop_func_name;
int new_thread_event;
int wait_some_more;
};
struct execution_control_state *ecs);
static void handle_step_into_function_backward (struct gdbarch *gdbarch,
struct execution_control_state *ecs);
-static void insert_step_resume_breakpoint_at_frame (struct frame_info *);
-static void insert_step_resume_breakpoint_at_caller (struct frame_info *);
-static void insert_step_resume_breakpoint_at_sal (struct gdbarch *,
- struct symtab_and_line ,
- struct frame_id);
-static void insert_longjmp_resume_breakpoint (struct gdbarch *, CORE_ADDR);
static void check_exception_resume (struct execution_control_state *,
- struct frame_info *, struct symbol *);
+ struct frame_info *);
static void stop_stepping (struct execution_control_state *ecs);
static void prepare_to_wait (struct execution_control_state *ecs);
ecs->ptid = info->ptid;
ecs->event_thread = find_thread_ptid (info->ptid);
ecs->ws.kind = TARGET_WAITKIND_STOPPED;
- ecs->ws.value.sig = TARGET_SIGNAL_0;
+ ecs->ws.value.sig = GDB_SIGNAL_0;
handle_inferior_event (ecs);
normal_stop ();
- /* Finish off the continuations. The continations
- themselves are responsible for realising the thread
- didn't finish what it was supposed to do. */
+ /* Finish off the continuations. */
tp = inferior_thread ();
- do_all_intermediate_continuations_thread (tp);
- do_all_continuations_thread (tp);
+ do_all_intermediate_continuations_thread (tp, 1);
+ do_all_continuations_thread (tp, 1);
}
do_cleanups (old_chain);
overlay_cache_invalid = 1;
- /* We have to invalidate the registers BEFORE calling
- target_wait because they can be loaded from the target while
- in target_wait. This makes remote debugging a bit more
- efficient for those targets that provide critical registers
- as part of their normal status mechanism. */
-
- registers_changed ();
-
if (deprecated_target_wait_hook)
ecs->ptid = deprecated_target_wait_hook (pid_ptid, &ecs->ws, 0);
else
/* Wait for control to return from inferior to debugger.
- If TREAT_EXEC_AS_SIGTRAP is non-zero, then handle EXEC signals
- as if they were SIGTRAP signals. This can be useful during
- the startup sequence on some targets such as HP/UX, where
- we receive an EXEC event instead of the expected SIGTRAP.
-
If inferior gets a signal, we may decide to start it up again
instead of returning. That is why there is a loop in this function.
When this function actually returns it means the inferior
should be left stopped and GDB should read more commands. */
void
-wait_for_inferior (int treat_exec_as_sigtrap)
+wait_for_inferior (void)
{
struct cleanup *old_cleanups;
- struct execution_control_state ecss;
- struct execution_control_state *ecs;
if (debug_infrun)
fprintf_unfiltered
- (gdb_stdlog, "infrun: wait_for_inferior (treat_exec_as_sigtrap=%d)\n",
- treat_exec_as_sigtrap);
+ (gdb_stdlog, "infrun: wait_for_inferior ()\n");
old_cleanups =
make_cleanup (delete_step_thread_step_resume_breakpoint_cleanup, NULL);
- ecs = &ecss;
- memset (ecs, 0, sizeof (*ecs));
-
- /* We'll update this if & when we switch to a new thread. */
- previous_inferior_ptid = inferior_ptid;
-
while (1)
{
+ struct execution_control_state ecss;
+ struct execution_control_state *ecs = &ecss;
struct cleanup *old_chain;
- /* We have to invalidate the registers BEFORE calling target_wait
- because they can be loaded from the target while in target_wait.
- This makes remote debugging a bit more efficient for those
- targets that provide critical registers as part of their normal
- status mechanism. */
+ memset (ecs, 0, sizeof (*ecs));
overlay_cache_invalid = 1;
- registers_changed ();
if (deprecated_target_wait_hook)
ecs->ptid = deprecated_target_wait_hook (waiton_ptid, &ecs->ws, 0);
if (debug_infrun)
print_target_wait_results (waiton_ptid, ecs->ptid, &ecs->ws);
- if (treat_exec_as_sigtrap && ecs->ws.kind == TARGET_WAITKIND_EXECD)
- {
- xfree (ecs->ws.value.execd_pathname);
- ecs->ws.kind = TARGET_WAITKIND_STOPPED;
- ecs->ws.value.sig = TARGET_SIGNAL_TRAP;
- }
-
/* If an error happens while handling the event, propagate GDB's
knowledge of the executing state to the frontend/user running
state. */
old_chain = make_cleanup (finish_thread_state_cleanup, &minus_one_ptid);
- if (ecs->ws.kind == TARGET_WAITKIND_SYSCALL_ENTRY
- || ecs->ws.kind == TARGET_WAITKIND_SYSCALL_RETURN)
- ecs->ws.value.syscall_number = UNKNOWN_SYSCALL;
-
/* Now figure out what to do with the result of the result. */
handle_inferior_event (ecs);
struct cleanup *old_chain = make_cleanup (null_cleanup, NULL);
struct cleanup *ts_old_chain;
int was_sync = sync_execution;
+ int cmd_done = 0;
memset (ecs, 0, sizeof (*ecs));
- /* We'll update this if & when we switch to a new thread. */
- previous_inferior_ptid = inferior_ptid;
-
/* We're handling a live event, so make sure we're doing live
debugging. If we're looking at traceframes while the target is
running, we're going to need to get back to that mode after
if (non_stop)
{
make_cleanup_restore_current_traceframe ();
- set_traceframe_number (-1);
+ set_current_traceframe (-1);
}
if (non_stop)
running any breakpoint commands. */
make_cleanup_restore_current_thread ();
- /* We have to invalidate the registers BEFORE calling target_wait
- because they can be loaded from the target while in target_wait.
- This makes remote debugging a bit more efficient for those
- targets that provide critical registers as part of their normal
- status mechanism. */
-
overlay_cache_invalid = 1;
- registers_changed ();
+
+ make_cleanup_restore_integer (&execution_direction);
+ execution_direction = target_execution_direction ();
if (deprecated_target_wait_hook)
ecs->ptid =
if (non_stop
&& ecs->ws.kind != TARGET_WAITKIND_IGNORE
+ && ecs->ws.kind != TARGET_WAITKIND_NO_RESUMED
&& ecs->ws.kind != TARGET_WAITKIND_EXITED
&& ecs->ws.kind != TARGET_WAITKIND_SIGNALLED)
/* In non-stop mode, each thread is handled individually. Switch
else
ts_old_chain = make_cleanup (finish_thread_state_cleanup, &ecs->ptid);
+ /* Get executed before make_cleanup_restore_current_thread above to apply
+ still for the thread which has thrown the exception. */
+ make_bpstat_clear_actions_cleanup ();
+
/* Now figure out what to do with the result of the result. */
handle_inferior_event (ecs);
normal_stop ();
if (target_has_execution
+ && ecs->ws.kind != TARGET_WAITKIND_NO_RESUMED
&& ecs->ws.kind != TARGET_WAITKIND_EXITED
&& ecs->ws.kind != TARGET_WAITKIND_SIGNALLED
&& ecs->event_thread->step_multi
&& ecs->event_thread->control.stop_step)
inferior_event_handler (INF_EXEC_CONTINUE, NULL);
else
- inferior_event_handler (INF_EXEC_COMPLETE, NULL);
+ {
+ inferior_event_handler (INF_EXEC_COMPLETE, NULL);
+ cmd_done = 1;
+ }
}
/* No error, don't finish the thread states yet. */
do_cleanups (old_chain);
/* If the inferior was in sync execution mode, and now isn't,
- restore the prompt. */
- if (was_sync && !sync_execution)
+ restore the prompt (a synchronous execution command has finished,
+ and we're ready for input). */
+ if (interpreter_async && was_sync && !sync_execution)
display_gdb_prompt (0);
+
+ if (cmd_done
+ && !was_sync
+ && exec_done_display_p
+ && (ptid_equal (inferior_ptid, null_ptid)
+ || !is_running (inferior_ptid)))
+ printf_unfiltered (_("completed.\n"));
}
/* Record the frame and location we're currently stepping through. */
{
tss->stepping_over_breakpoint = 0;
tss->step_after_step_resume_breakpoint = 0;
- tss->stepping_through_solib_after_catch = 0;
- tss->stepping_through_solib_catchpoints = NULL;
}
/* Return the cached copy of the last pid/waitstatus returned by
static void
context_switch (ptid_t ptid)
{
- if (debug_infrun)
+ if (debug_infrun && !ptid_equal (ptid, inferior_ptid))
{
fprintf_unfiltered (gdb_stdlog, "infrun: Switching context from %s ",
target_pid_to_str (inferior_ptid));
if (ecs->ws.kind != TARGET_WAITKIND_STOPPED)
return;
- if (ecs->ws.value.sig != TARGET_SIGNAL_TRAP)
+ if (ecs->ws.value.sig != GDB_SIGNAL_TRAP)
return;
/* In reverse execution, when a breakpoint is hit, the instruction
regcache = get_thread_regcache (ecs->ptid);
gdbarch = get_regcache_arch (regcache);
- syscall_number = gdbarch_get_syscall_number (gdbarch, ecs->ptid);
+ syscall_number = ecs->ws.value.syscall_number;
stop_pc = regcache_read_pc (regcache);
- target_last_waitstatus.value.syscall_number = syscall_number;
-
if (catch_syscall_enabled () > 0
&& catching_syscall_number (syscall_number) > 0)
{
ecs->event_thread->control.stop_bpstat
= bpstat_stop_status (get_regcache_aspace (regcache),
- stop_pc, ecs->ptid);
+ stop_pc, ecs->ptid, &ecs->ws);
ecs->random_signal
= !bpstat_explains_signal (ecs->event_thread->control.stop_bpstat);
if (!ecs->random_signal)
{
/* Catchpoint hit. */
- ecs->event_thread->suspend.stop_signal = TARGET_SIGNAL_TRAP;
+ ecs->event_thread->suspend.stop_signal = GDB_SIGNAL_TRAP;
return 0;
}
}
/* If no catchpoint triggered for this, then keep going. */
- ecs->event_thread->suspend.stop_signal = TARGET_SIGNAL_0;
+ ecs->event_thread->suspend.stop_signal = GDB_SIGNAL_0;
keep_going (ecs);
return 1;
}
+/* Clear the supplied execution_control_state's stop_func_* fields. */
+
+static void
+clear_stop_func (struct execution_control_state *ecs)
+{
+ ecs->stop_func_filled_in = 0;
+ ecs->stop_func_start = 0;
+ ecs->stop_func_end = 0;
+ ecs->stop_func_name = NULL;
+}
+
+/* Lazily fill in the execution_control_state's stop_func_* fields. */
+
+static void
+fill_in_stop_func (struct gdbarch *gdbarch,
+ struct execution_control_state *ecs)
+{
+ if (!ecs->stop_func_filled_in)
+ {
+ /* Don't care about return value; stop_func_start and stop_func_name
+ will both be 0 if it doesn't work. */
+ find_pc_partial_function (stop_pc, &ecs->stop_func_name,
+ &ecs->stop_func_start, &ecs->stop_func_end);
+ ecs->stop_func_start
+ += gdbarch_deprecated_function_start_offset (gdbarch);
+
+ ecs->stop_func_filled_in = 1;
+ }
+}
+
/* Given an execution control state that has been freshly filled in
by an event from the inferior, figure out what it means and take
appropriate action. */
{
struct frame_info *frame;
struct gdbarch *gdbarch;
- int sw_single_step_trap_p = 0;
int stopped_by_watchpoint;
int stepped_after_stopped_by_watchpoint = 0;
struct symtab_and_line stop_pc_sal;
return;
}
+ if (ecs->ws.kind == TARGET_WAITKIND_NO_RESUMED
+ && target_can_async_p () && !sync_execution)
+ {
+ /* There were no unwaited-for children left in the target, but,
+ we're not synchronously waiting for events either. Just
+ ignore. Otherwise, if we were running a synchronous
+ execution command, we need to cancel it and give the user
+ back the terminal. */
+ if (debug_infrun)
+ fprintf_unfiltered (gdb_stdlog,
+ "infrun: TARGET_WAITKIND_NO_RESUMED (ignoring)\n");
+ prepare_to_wait (ecs);
+ return;
+ }
+
if (ecs->ws.kind != TARGET_WAITKIND_EXITED
- && ecs->ws.kind != TARGET_WAITKIND_SIGNALLED)
+ && ecs->ws.kind != TARGET_WAITKIND_SIGNALLED
+ && ecs->ws.kind != TARGET_WAITKIND_NO_RESUMED)
{
struct inferior *inf = find_inferior_pid (ptid_get_pid (ecs->ptid));
/* Always clear state belonging to the previous time we stopped. */
stop_stack_dummy = STOP_NONE;
+ if (ecs->ws.kind == TARGET_WAITKIND_NO_RESUMED)
+ {
+ /* No unwaited-for children left. IOW, all resumed children
+ have exited. */
+ if (debug_infrun)
+ fprintf_unfiltered (gdb_stdlog, "infrun: TARGET_WAITKIND_NO_RESUMED\n");
+
+ stop_print_frame = 0;
+ stop_stepping (ecs);
+ return;
+ }
+
/* If it's a new process, add it to the thread database. */
ecs->new_thread_event = (!ptid_equal (ecs->ptid, inferior_ptid)
for architectures like SPARC that place call dummies on the
stack. */
if (ecs->ws.kind == TARGET_WAITKIND_STOPPED
- && (ecs->ws.value.sig == TARGET_SIGNAL_ILL
- || ecs->ws.value.sig == TARGET_SIGNAL_SEGV
- || ecs->ws.value.sig == TARGET_SIGNAL_EMT))
+ && (ecs->ws.value.sig == GDB_SIGNAL_ILL
+ || ecs->ws.value.sig == GDB_SIGNAL_SEGV
+ || ecs->ws.value.sig == GDB_SIGNAL_EMT))
{
struct regcache *regcache = get_thread_regcache (ecs->ptid);
if (debug_infrun)
fprintf_unfiltered (gdb_stdlog,
"infrun: Treating signal as SIGTRAP\n");
- ecs->ws.value.sig = TARGET_SIGNAL_TRAP;
+ ecs->ws.value.sig = GDB_SIGNAL_TRAP;
}
}
set_executing (minus_one_ptid, 0);
else if (ecs->ws.kind != TARGET_WAITKIND_SIGNALLED
&& ecs->ws.kind != TARGET_WAITKIND_EXITED)
- set_executing (inferior_ptid, 0);
+ set_executing (ecs->ptid, 0);
switch (infwait_state)
{
established. */
if (stop_soon == NO_STOP_QUIETLY)
{
- /* Check for any newly added shared libraries if we're
- supposed to be adding them automatically. Switch
- terminal for any messages produced by
- breakpoint_re_set. */
- target_terminal_ours_for_output ();
- /* NOTE: cagney/2003-11-25: Make certain that the target
- stack's section table is kept up-to-date. Architectures,
- (e.g., PPC64), use the section table to perform
- operations such as address => section name and hence
- require the table to contain all sections (including
- those found in shared libraries). */
-#ifdef SOLIB_ADD
- SOLIB_ADD (NULL, 0, ¤t_target, auto_solib_add);
-#else
- solib_add (NULL, 0, ¤t_target, auto_solib_add);
-#endif
- target_terminal_inferior ();
+ struct regcache *regcache;
+
+ if (!ptid_equal (ecs->ptid, inferior_ptid))
+ context_switch (ecs->ptid);
+ regcache = get_thread_regcache (ecs->ptid);
+
+ handle_solib_event ();
+
+ ecs->event_thread->control.stop_bpstat
+ = bpstat_stop_status (get_regcache_aspace (regcache),
+ stop_pc, ecs->ptid, &ecs->ws);
+ ecs->random_signal
+ = !bpstat_explains_signal (ecs->event_thread->control.stop_bpstat);
+
+ if (!ecs->random_signal)
+ {
+ /* A catchpoint triggered. */
+ ecs->event_thread->suspend.stop_signal = GDB_SIGNAL_TRAP;
+ goto process_event_stop_test;
+ }
/* If requested, stop when the dynamic linker notifies
gdb of events. This allows the user to get control
and place breakpoints in initializer routines for
dynamically loaded objects (among other things). */
+ ecs->event_thread->suspend.stop_signal = GDB_SIGNAL_0;
if (stop_on_solib_events)
{
/* Make sure we print "Stopped due to solib-event" in
stop_stepping (ecs);
return;
}
-
- /* NOTE drow/2007-05-11: This might be a good place to check
- for "catch load". */
}
/* If we are skipping through a shell, or through shared library
if (stop_soon == NO_STOP_QUIETLY
&& !breakpoints_always_inserted_mode ())
insert_breakpoints ();
- resume (0, TARGET_SIGNAL_0);
+ resume (0, GDB_SIGNAL_0);
prepare_to_wait (ecs);
return;
}
case TARGET_WAITKIND_SPURIOUS:
if (debug_infrun)
fprintf_unfiltered (gdb_stdlog, "infrun: TARGET_WAITKIND_SPURIOUS\n");
- resume (0, TARGET_SIGNAL_0);
+ resume (0, GDB_SIGNAL_0);
prepare_to_wait (ecs);
return;
that the user can inspect this again later. */
set_internalvar_integer (lookup_internalvar ("_exitcode"),
(LONGEST) ecs->ws.value.integer);
+
+ /* Also record this in the inferior itself. */
+ current_inferior ()->has_exit_code = 1;
+ current_inferior ()->exit_code = (LONGEST) ecs->ws.value.integer;
+
gdb_flush (gdb_stdout);
target_mourn_inferior ();
singlestep_breakpoints_inserted_p = 0;
if (debug_infrun)
fprintf_unfiltered (gdb_stdlog, "infrun: TARGET_WAITKIND_FORKED\n");
+ /* Check whether the inferior is displaced stepping. */
+ {
+ struct regcache *regcache = get_thread_regcache (ecs->ptid);
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ struct displaced_step_inferior_state *displaced
+ = get_displaced_stepping_state (ptid_get_pid (ecs->ptid));
+
+ /* If checking displaced stepping is supported, and thread
+ ecs->ptid is displaced stepping. */
+ if (displaced && ptid_equal (displaced->step_ptid, ecs->ptid))
+ {
+ struct inferior *parent_inf
+ = find_inferior_pid (ptid_get_pid (ecs->ptid));
+ struct regcache *child_regcache;
+ CORE_ADDR parent_pc;
+
+ /* GDB has got TARGET_WAITKIND_FORKED or TARGET_WAITKIND_VFORKED,
+ indicating that the displaced stepping of syscall instruction
+ has been done. Perform cleanup for parent process here. Note
+ that this operation also cleans up the child process for vfork,
+ because their pages are shared. */
+ displaced_step_fixup (ecs->ptid, GDB_SIGNAL_TRAP);
+
+ if (ecs->ws.kind == TARGET_WAITKIND_FORKED)
+ {
+ /* Restore scratch pad for child process. */
+ displaced_step_restore (displaced, ecs->ws.value.related_pid);
+ }
+
+ /* Since the vfork/fork syscall instruction was executed in the scratchpad,
+ the child's PC is also within the scratchpad. Set the child's PC
+ to the parent's PC value, which has already been fixed up.
+ FIXME: we use the parent's aspace here, although we're touching
+ the child, because the child hasn't been added to the inferior
+ list yet at this point. */
+
+ child_regcache
+ = get_thread_arch_aspace_regcache (ecs->ws.value.related_pid,
+ gdbarch,
+ parent_inf->aspace);
+ /* Read PC value of parent process. */
+ parent_pc = regcache_read_pc (regcache);
+
+ if (debug_displaced)
+ fprintf_unfiltered (gdb_stdlog,
+ "displaced: write child pc from %s to %s\n",
+ paddress (gdbarch,
+ regcache_read_pc (child_regcache)),
+ paddress (gdbarch, parent_pc));
+
+ regcache_write_pc (child_regcache, parent_pc);
+ }
+ }
+
if (!ptid_equal (ecs->ptid, inferior_ptid))
{
context_switch (ecs->ptid);
ecs->event_thread->control.stop_bpstat
= bpstat_stop_status (get_regcache_aspace (get_current_regcache ()),
- stop_pc, ecs->ptid);
+ stop_pc, ecs->ptid, &ecs->ws);
/* Note that we're interested in knowing the bpstat actually
causes a stop, not just if it may explain the signal.
int follow_child
= (follow_fork_mode_string == follow_fork_mode_child);
- ecs->event_thread->suspend.stop_signal = TARGET_SIGNAL_0;
+ ecs->event_thread->suspend.stop_signal = GDB_SIGNAL_0;
should_resume = follow_fork ();
stop_stepping (ecs);
return;
}
- ecs->event_thread->suspend.stop_signal = TARGET_SIGNAL_TRAP;
+ ecs->event_thread->suspend.stop_signal = GDB_SIGNAL_TRAP;
goto process_event_stop_test;
case TARGET_WAITKIND_VFORK_DONE:
ecs->event_thread->control.stop_bpstat
= bpstat_stop_status (get_regcache_aspace (get_current_regcache ()),
- stop_pc, ecs->ptid);
+ stop_pc, ecs->ptid, &ecs->ws);
ecs->random_signal
= !bpstat_explains_signal (ecs->event_thread->control.stop_bpstat);
/* If no catchpoint triggered for this, then keep going. */
if (ecs->random_signal)
{
- ecs->event_thread->suspend.stop_signal = TARGET_SIGNAL_0;
+ ecs->event_thread->suspend.stop_signal = GDB_SIGNAL_0;
keep_going (ecs);
return;
}
- ecs->event_thread->suspend.stop_signal = TARGET_SIGNAL_TRAP;
+ ecs->event_thread->suspend.stop_signal = GDB_SIGNAL_TRAP;
goto process_event_stop_test;
/* Be careful not to try to gather much state about a thread
break;
case TARGET_WAITKIND_NO_HISTORY:
+ if (debug_infrun)
+ fprintf_unfiltered (gdb_stdlog, "infrun: TARGET_WAITKIND_NO_HISTORY\n");
/* Reverse execution: target ran out of history info. */
stop_pc = regcache_read_pc (get_thread_regcache (ecs->ptid));
print_no_history_reason ();
if (!ptid_equal (ecs->ptid, inferior_ptid))
context_switch (ecs->ptid);
- target_resume (RESUME_ALL, 0, TARGET_SIGNAL_0);
+ target_resume (RESUME_ALL, 0, GDB_SIGNAL_0);
prepare_to_wait (ecs);
return;
}
SIG0 (generic unsignaled stop). */
if (ecs->event_thread->stop_requested
- && ecs->event_thread->suspend.stop_signal == TARGET_SIGNAL_TRAP)
- ecs->event_thread->suspend.stop_signal = TARGET_SIGNAL_0;
+ && ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_TRAP)
+ ecs->event_thread->suspend.stop_signal = GDB_SIGNAL_0;
}
stop_pc = regcache_read_pc (get_thread_regcache (ecs->ptid));
/* We've either finished single-stepping past the single-step
breakpoint, or stopped for some other reason. It would be nice if
we could tell, but we can't reliably. */
- if (ecs->event_thread->suspend.stop_signal == TARGET_SIGNAL_TRAP)
+ if (ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_TRAP)
{
if (debug_infrun)
fprintf_unfiltered (gdb_stdlog,
if (deprecated_context_hook)
deprecated_context_hook (pid_to_thread_id (ecs->ptid));
- resume (1, TARGET_SIGNAL_0);
+ resume (1, GDB_SIGNAL_0);
prepare_to_wait (ecs);
return;
}
/* If we stopped for some other reason than single-stepping, ignore
the fact that we were supposed to switch back. */
- if (ecs->event_thread->suspend.stop_signal == TARGET_SIGNAL_TRAP)
+ if (ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_TRAP)
{
if (debug_infrun)
fprintf_unfiltered (gdb_stdlog,
singlestep_breakpoints_inserted_p = 0;
}
+ ecs->event_thread->control.trap_expected = 0;
+
/* Note: We do not call context_switch at this point, as the
context is already set up for stepping the original thread. */
switch_to_thread (deferred_step_ptid);
/* Suppress spurious "Switching to ..." message. */
previous_inferior_ptid = inferior_ptid;
- resume (1, TARGET_SIGNAL_0);
+ resume (1, GDB_SIGNAL_0);
prepare_to_wait (ecs);
return;
}
another thread. If so, then step that thread past the breakpoint,
and continue it. */
- if (ecs->event_thread->suspend.stop_signal == TARGET_SIGNAL_TRAP)
+ if (ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_TRAP)
{
int thread_hop_needed = 0;
struct address_space *aspace =
if (new_singlestep_pc != singlestep_pc)
{
- enum target_signal stop_signal;
+ enum gdb_signal stop_signal;
if (debug_infrun)
fprintf_unfiltered (gdb_stdlog, "infrun: unexpected thread,"
the context we want to use. Just fudge our
state and continue. */
stop_signal = ecs->event_thread->suspend.stop_signal;
- ecs->event_thread->suspend.stop_signal = TARGET_SIGNAL_0;
+ ecs->event_thread->suspend.stop_signal = GDB_SIGNAL_0;
ecs->ptid = singlestep_ptid;
ecs->event_thread = find_thread_ptid (ecs->ptid);
ecs->event_thread->suspend.stop_signal = stop_signal;
}
else if (singlestep_breakpoints_inserted_p)
{
- sw_single_step_trap_p = 1;
ecs->random_signal = 0;
}
}
int hw_step = 1;
if (!target_have_steppable_watchpoint)
- remove_breakpoints ();
+ {
+ remove_breakpoints ();
+ /* See comment in resume why we need to stop bypassing signals
+ while breakpoints have been removed. */
+ target_pass_signals (0, NULL);
+ }
/* Single step */
hw_step = maybe_software_singlestep (gdbarch, stop_pc);
- target_resume (ecs->ptid, hw_step, TARGET_SIGNAL_0);
+ target_resume (ecs->ptid, hw_step, GDB_SIGNAL_0);
waiton_ptid = ecs->ptid;
if (target_have_steppable_watchpoint)
infwait_state = infwait_step_watch_state;
return;
}
- ecs->stop_func_start = 0;
- ecs->stop_func_end = 0;
- ecs->stop_func_name = 0;
- /* Don't care about return value; stop_func_start and stop_func_name
- will both be 0 if it doesn't work. */
- find_pc_partial_function (stop_pc, &ecs->stop_func_name,
- &ecs->stop_func_start, &ecs->stop_func_end);
- ecs->stop_func_start
- += gdbarch_deprecated_function_start_offset (gdbarch);
+ clear_stop_func (ecs);
ecs->event_thread->stepping_over_breakpoint = 0;
bpstat_clear (&ecs->event_thread->control.stop_bpstat);
ecs->event_thread->control.stop_step = 0;
nexti. After stepi and nexti, always show the innermost frame (not any
inline function call sites). */
if (ecs->event_thread->control.step_range_end != 1)
- skip_inline_frames (ecs->ptid);
+ {
+ struct address_space *aspace =
+ get_regcache_aspace (get_thread_regcache (ecs->ptid));
- if (ecs->event_thread->suspend.stop_signal == TARGET_SIGNAL_TRAP
+ /* skip_inline_frames is expensive, so we avoid it if we can
+ determine that the address is one where functions cannot have
+ been inlined. This improves performance with inferiors that
+ load a lot of shared libraries, because the solib event
+ breakpoint is defined as the address of a function (i.e. not
+ inline). Note that we have to check the previous PC as well
+ as the current one to catch cases when we have just
+ single-stepped off a breakpoint prior to reinstating it.
+ Note that we're assuming that the code we single-step to is
+ not inline, but that's not definitive: there's nothing
+ preventing the event breakpoint function from containing
+ inlined code, and the single-step ending up there. If the
+ user had set a breakpoint on that inlined code, the missing
+ skip_inline_frames call would break things. Fortunately
+ that's an extremely unlikely scenario. */
+ if (!pc_at_non_inline_function (aspace, stop_pc, &ecs->ws)
+ && !(ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_TRAP
+ && ecs->event_thread->control.trap_expected
+ && pc_at_non_inline_function (aspace,
+ ecs->event_thread->prev_pc,
+ &ecs->ws)))
+ skip_inline_frames (ecs->ptid);
+ }
+
+ if (ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_TRAP
&& ecs->event_thread->control.trap_expected
&& gdbarch_single_step_through_delay_p (gdbarch)
&& currently_stepping (ecs->event_thread))
3) set ecs->random_signal to 1, and the decision between 1 and 2
will be made according to the signal handling tables. */
- if (ecs->event_thread->suspend.stop_signal == TARGET_SIGNAL_TRAP
+ if (ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_TRAP
|| stop_soon == STOP_QUIETLY || stop_soon == STOP_QUIETLY_NO_SIGSTOP
|| stop_soon == STOP_QUIETLY_REMOTE)
{
- if (ecs->event_thread->suspend.stop_signal == TARGET_SIGNAL_TRAP
+ if (ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_TRAP
&& stop_after_trap)
{
if (debug_infrun)
signal, so this is no exception.
Also consider that the attach is complete when we see a
- TARGET_SIGNAL_0. In non-stop mode, GDB will explicitly tell
+ GDB_SIGNAL_0. In non-stop mode, GDB will explicitly tell
the target to stop all threads of the inferior, in case the
low level attach operation doesn't stop them implicitly. If
they weren't stopped implicitly, then the stub will report a
- TARGET_SIGNAL_0, meaning: stopped for no particular reason
+ GDB_SIGNAL_0, meaning: stopped for no particular reason
other than GDB's request. */
if (stop_soon == STOP_QUIETLY_NO_SIGSTOP
- && (ecs->event_thread->suspend.stop_signal == TARGET_SIGNAL_STOP
- || ecs->event_thread->suspend.stop_signal == TARGET_SIGNAL_TRAP
- || ecs->event_thread->suspend.stop_signal == TARGET_SIGNAL_0))
+ && (ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_STOP
+ || ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_TRAP
+ || ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_0))
{
stop_stepping (ecs);
- ecs->event_thread->suspend.stop_signal = TARGET_SIGNAL_0;
+ ecs->event_thread->suspend.stop_signal = GDB_SIGNAL_0;
return;
}
- /* See if there is a breakpoint at the current PC. */
+ /* See if there is a breakpoint/watchpoint/catchpoint/etc. that
+ handles this event. */
ecs->event_thread->control.stop_bpstat
= bpstat_stop_status (get_regcache_aspace (get_current_regcache ()),
- stop_pc, ecs->ptid);
+ stop_pc, ecs->ptid, &ecs->ws);
/* Following in case break condition called a
function. */
set. */
if (debug_infrun
- && ecs->event_thread->suspend.stop_signal == TARGET_SIGNAL_TRAP
+ && ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_TRAP
&& !bpstat_explains_signal (ecs->event_thread->control.stop_bpstat)
&& stopped_by_watchpoint)
fprintf_unfiltered (gdb_stdlog,
be necessary for call dummies on a non-executable stack on
SPARC. */
- if (ecs->event_thread->suspend.stop_signal == TARGET_SIGNAL_TRAP)
+ if (ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_TRAP)
ecs->random_signal
= !(bpstat_explains_signal (ecs->event_thread->control.stop_bpstat)
|| stopped_by_watchpoint
ecs->random_signal = !bpstat_explains_signal
(ecs->event_thread->control.stop_bpstat);
if (!ecs->random_signal)
- ecs->event_thread->suspend.stop_signal = TARGET_SIGNAL_TRAP;
+ ecs->event_thread->suspend.stop_signal = GDB_SIGNAL_TRAP;
}
}
/* Clear the signal if it should not be passed. */
if (signal_program[ecs->event_thread->suspend.stop_signal] == 0)
- ecs->event_thread->suspend.stop_signal = TARGET_SIGNAL_0;
+ ecs->event_thread->suspend.stop_signal = GDB_SIGNAL_0;
if (ecs->event_thread->prev_pc == stop_pc
&& ecs->event_thread->control.trap_expected
"infrun: signal arrived while stepping over "
"breakpoint\n");
- insert_step_resume_breakpoint_at_frame (frame);
+ insert_hp_step_resume_breakpoint_at_frame (frame);
ecs->event_thread->step_after_step_resume_breakpoint = 1;
+ /* Reset trap_expected to ensure breakpoints are re-inserted. */
+ ecs->event_thread->control.trap_expected = 0;
keep_going (ecs);
return;
}
if (ecs->event_thread->control.step_range_end != 0
- && ecs->event_thread->suspend.stop_signal != TARGET_SIGNAL_0
+ && ecs->event_thread->suspend.stop_signal != GDB_SIGNAL_0
&& (ecs->event_thread->control.step_range_start <= stop_pc
&& stop_pc < ecs->event_thread->control.step_range_end)
&& frame_id_eq (get_stack_frame_id (frame),
"infrun: signal may take us out of "
"single-step range\n");
- insert_step_resume_breakpoint_at_frame (frame);
+ insert_hp_step_resume_breakpoint_at_frame (frame);
+ /* Reset trap_expected to ensure breakpoints are re-inserted. */
+ ecs->event_thread->control.trap_expected = 0;
keep_going (ecs);
return;
}
if (what.is_longjmp)
{
- if (!gdbarch_get_longjmp_target_p (gdbarch)
- || !gdbarch_get_longjmp_target (gdbarch,
- frame, &jmp_buf_pc))
+ struct value *arg_value;
+
+ /* If we set the longjmp breakpoint via a SystemTap probe,
+ then use it to extract the arguments. The destination
+ PC is the third argument to the probe. */
+ arg_value = probe_safe_evaluate_at_pc (frame, 2);
+ if (arg_value)
+ jmp_buf_pc = value_as_address (arg_value);
+ else if (!gdbarch_get_longjmp_target_p (gdbarch)
+ || !gdbarch_get_longjmp_target (gdbarch,
+ frame, &jmp_buf_pc))
{
if (debug_infrun)
fprintf_unfiltered (gdb_stdlog,
insert_longjmp_resume_breakpoint (gdbarch, jmp_buf_pc);
}
else
- {
- struct symbol *func = get_frame_function (frame);
-
- if (func)
- check_exception_resume (ecs, frame, func);
- }
+ check_exception_resume (ecs, frame);
keep_going (ecs);
return;
where we are stepping and step out of the right range. */
break;
+ case BPSTAT_WHAT_STEP_RESUME:
+ if (debug_infrun)
+ fprintf_unfiltered (gdb_stdlog, "infrun: BPSTAT_WHAT_STEP_RESUME\n");
+
+ delete_step_resume_breakpoint (ecs->event_thread);
+ if (ecs->event_thread->control.proceed_to_finish
+ && execution_direction == EXEC_REVERSE)
+ {
+ struct thread_info *tp = ecs->event_thread;
+
+ /* We are finishing a function in reverse, and just hit
+ the step-resume breakpoint at the start address of the
+ function, and we're almost there -- just need to back
+ up by one more single-step, which should take us back
+ to the function call. */
+ tp->control.step_range_start = tp->control.step_range_end = 1;
+ keep_going (ecs);
+ return;
+ }
+ fill_in_stop_func (gdbarch, ecs);
+ if (stop_pc == ecs->stop_func_start
+ && execution_direction == EXEC_REVERSE)
+ {
+ /* We are stepping over a function call in reverse, and
+ just hit the step-resume breakpoint at the start
+ address of the function. Go back to single-stepping,
+ which should take us back to the function call. */
+ ecs->event_thread->stepping_over_breakpoint = 1;
+ keep_going (ecs);
+ return;
+ }
+ break;
+
case BPSTAT_WHAT_STOP_NOISY:
if (debug_infrun)
fprintf_unfiltered (gdb_stdlog, "infrun: BPSTAT_WHAT_STOP_NOISY\n");
stop_stepping (ecs);
return;
- case BPSTAT_WHAT_STEP_RESUME:
+ case BPSTAT_WHAT_HP_STEP_RESUME:
if (debug_infrun)
- fprintf_unfiltered (gdb_stdlog, "infrun: BPSTAT_WHAT_STEP_RESUME\n");
+ fprintf_unfiltered (gdb_stdlog, "infrun: BPSTAT_WHAT_HP_STEP_RESUME\n");
delete_step_resume_breakpoint (ecs->event_thread);
if (ecs->event_thread->step_after_step_resume_breakpoint)
keep_going (ecs);
return;
}
- if (stop_pc == ecs->stop_func_start
- && execution_direction == EXEC_REVERSE)
- {
- /* We are stepping over a function call in reverse, and
- just hit the step-resume breakpoint at the start
- address of the function. Go back to single-stepping,
- which should take us back to the function call. */
- ecs->event_thread->stepping_over_breakpoint = 1;
- keep_going (ecs);
- return;
- }
break;
case BPSTAT_WHAT_KEEP_CHECKING:
breakpoint, and we simply need to step over that breakpoint
to get it going again, do that first. */
if ((ecs->event_thread->control.trap_expected
- && ecs->event_thread->suspend.stop_signal != TARGET_SIGNAL_TRAP)
+ && ecs->event_thread->suspend.stop_signal != GDB_SIGNAL_TRAP)
|| ecs->event_thread->stepping_over_breakpoint)
{
keep_going (ecs);
}
}
- /* Are we stepping to get the inferior out of the dynamic linker's
- hook (and possibly the dld itself) after catching a shlib
- event? */
- if (ecs->event_thread->stepping_through_solib_after_catch)
- {
-#if defined(SOLIB_ADD)
- /* Have we reached our destination? If not, keep going. */
- if (SOLIB_IN_DYNAMIC_LINKER (PIDGET (ecs->ptid), stop_pc))
- {
- if (debug_infrun)
- fprintf_unfiltered (gdb_stdlog,
- "infrun: stepping in dynamic linker\n");
- ecs->event_thread->stepping_over_breakpoint = 1;
- keep_going (ecs);
- return;
- }
-#endif
- if (debug_infrun)
- fprintf_unfiltered (gdb_stdlog, "infrun: step past dynamic linker\n");
- /* Else, stop and report the catchpoint(s) whose triggering
- caused us to begin stepping. */
- ecs->event_thread->stepping_through_solib_after_catch = 0;
- bpstat_clear (&ecs->event_thread->control.stop_bpstat);
- ecs->event_thread->control.stop_bpstat
- = bpstat_copy (ecs->event_thread->stepping_through_solib_catchpoints);
- bpstat_clear (&ecs->event_thread->stepping_through_solib_catchpoints);
- stop_print_frame = 1;
- stop_stepping (ecs);
- return;
- }
-
if (ecs->event_thread->control.step_resume_breakpoint)
{
if (debug_infrun)
a dangling pointer. */
frame = get_current_frame ();
gdbarch = get_frame_arch (frame);
+ fill_in_stop_func (gdbarch, ecs);
/* If stepping through a line, keep going if still within it.
return;
}
+ /* If we're in the return path from a shared library trampoline,
+ we want to proceed through the trampoline when stepping. */
+ /* macro/2012-04-25: This needs to come before the subroutine
+ call check below as on some targets return trampolines look
+ like subroutine calls (MIPS16 return thunks). */
+ if (gdbarch_in_solib_return_trampoline (gdbarch,
+ stop_pc, ecs->stop_func_name)
+ && ecs->event_thread->control.step_over_calls != STEP_OVER_NONE)
+ {
+ /* Determine where this trampoline returns. */
+ CORE_ADDR real_stop_pc;
+
+ real_stop_pc = gdbarch_skip_trampoline_code (gdbarch, frame, stop_pc);
+
+ if (debug_infrun)
+ fprintf_unfiltered (gdb_stdlog,
+ "infrun: stepped into solib return tramp\n");
+
+ /* Only proceed through if we know where it's going. */
+ if (real_stop_pc)
+ {
+ /* And put the step-breakpoint there and go until there. */
+ struct symtab_and_line sr_sal;
+
+ init_sal (&sr_sal); /* initialize to zeroes */
+ sr_sal.pc = real_stop_pc;
+ sr_sal.section = find_pc_overlay (sr_sal.pc);
+ sr_sal.pspace = get_frame_program_space (frame);
+
+ /* Do not specify what the fp should be when we stop since
+ on some machines the prologue is where the new fp value
+ is established. */
+ insert_step_resume_breakpoint_at_sal (gdbarch,
+ sr_sal, null_frame_id);
+
+ /* Restart without fiddling with the step ranges or
+ other state. */
+ keep_going (ecs);
+ return;
+ }
+ }
+
/* Check for subroutine calls. The check for the current frame
equalling the step ID is not necessary - the check of the
previous frame's ID is sufficient - but it is a common case and
}
/* If we have line number information for the function we are
- thinking of stepping into, step into it.
+ thinking of stepping into and the function isn't on the skip
+ list, step into it.
If there are several symtabs at that PC (e.g. with include
files), just want to know whether *any* of them have line
struct symtab_and_line tmp_sal;
tmp_sal = find_pc_line (ecs->stop_func_start, 0);
- tmp_sal.pspace = get_frame_program_space (frame);
- if (tmp_sal.line != 0)
+ if (tmp_sal.line != 0
+ && !function_pc_is_marked_for_skip (ecs->stop_func_start))
{
if (execution_direction == EXEC_REVERSE)
handle_step_into_function_backward (gdbarch, ecs);
}
}
- /* If we're in the return path from a shared library trampoline,
- we want to proceed through the trampoline when stepping. */
- if (gdbarch_in_solib_return_trampoline (gdbarch,
- stop_pc, ecs->stop_func_name))
- {
- /* Determine where this trampoline returns. */
- CORE_ADDR real_stop_pc;
-
- real_stop_pc = gdbarch_skip_trampoline_code (gdbarch, frame, stop_pc);
-
- if (debug_infrun)
- fprintf_unfiltered (gdb_stdlog,
- "infrun: stepped into solib return tramp\n");
-
- /* Only proceed through if we know where it's going. */
- if (real_stop_pc)
- {
- /* And put the step-breakpoint there and go until there. */
- struct symtab_and_line sr_sal;
-
- init_sal (&sr_sal); /* initialize to zeroes */
- sr_sal.pc = real_stop_pc;
- sr_sal.section = find_pc_overlay (sr_sal.pc);
- sr_sal.pspace = get_frame_program_space (frame);
-
- /* Do not specify what the fp should be when we stop since
- on some machines the prologue is where the new fp value
- is established. */
- insert_step_resume_breakpoint_at_sal (gdbarch,
- sr_sal, null_frame_id);
-
- /* Restart without fiddling with the step ranges or
- other state. */
- keep_going (ecs);
- return;
- }
- }
-
stop_pc_sal = find_pc_line (stop_pc, 0);
/* NOTE: tausq/2004-05-24: This if block used to be done before all
return ((tp->control.step_range_end
&& tp->control.step_resume_breakpoint == NULL)
|| tp->control.trap_expected
- || tp->stepping_through_solib_after_catch
|| bpstat_should_step ());
}
return 0;
return (tp->control.step_range_end
- || tp->control.trap_expected
- || tp->stepping_through_solib_after_catch);
+ || tp->control.trap_expected);
}
/* Inferior has stepped into a subroutine call with source code that
struct symtab *s;
struct symtab_and_line stop_func_sal, sr_sal;
+ fill_in_stop_func (gdbarch, ecs);
+
s = find_pc_symtab (stop_pc);
if (s && s->language != language_asm)
ecs->stop_func_start = gdbarch_skip_prologue (gdbarch,
struct symtab *s;
struct symtab_and_line stop_func_sal;
+ fill_in_stop_func (gdbarch, ecs);
+
s = find_pc_symtab (stop_pc);
if (s && s->language != language_asm)
ecs->stop_func_start = gdbarch_skip_prologue (gdbarch,
This is used to both functions and to skip over code. */
static void
-insert_step_resume_breakpoint_at_sal (struct gdbarch *gdbarch,
- struct symtab_and_line sr_sal,
- struct frame_id sr_id)
+insert_step_resume_breakpoint_at_sal_1 (struct gdbarch *gdbarch,
+ struct symtab_and_line sr_sal,
+ struct frame_id sr_id,
+ enum bptype sr_type)
{
/* There should never be more than one step-resume or longjmp-resume
breakpoint per thread, so we should never be setting a new
step_resume_breakpoint when one is already active. */
gdb_assert (inferior_thread ()->control.step_resume_breakpoint == NULL);
+ gdb_assert (sr_type == bp_step_resume || sr_type == bp_hp_step_resume);
if (debug_infrun)
fprintf_unfiltered (gdb_stdlog,
paddress (gdbarch, sr_sal.pc));
inferior_thread ()->control.step_resume_breakpoint
- = set_momentary_breakpoint (gdbarch, sr_sal, sr_id, bp_step_resume);
+ = set_momentary_breakpoint (gdbarch, sr_sal, sr_id, sr_type);
}
-/* Insert a "step-resume breakpoint" at RETURN_FRAME.pc. This is used
- to skip a potential signal handler.
+void
+insert_step_resume_breakpoint_at_sal (struct gdbarch *gdbarch,
+ struct symtab_and_line sr_sal,
+ struct frame_id sr_id)
+{
+ insert_step_resume_breakpoint_at_sal_1 (gdbarch,
+ sr_sal, sr_id,
+ bp_step_resume);
+}
+
+/* Insert a "high-priority step-resume breakpoint" at RETURN_FRAME.pc.
+ This is used to skip a potential signal handler.
This is called with the interrupted function's frame. The signal
handler, when it returns, will resume the interrupted function at
RETURN_FRAME.pc. */
static void
-insert_step_resume_breakpoint_at_frame (struct frame_info *return_frame)
+insert_hp_step_resume_breakpoint_at_frame (struct frame_info *return_frame)
{
struct symtab_and_line sr_sal;
struct gdbarch *gdbarch;
sr_sal.section = find_pc_overlay (sr_sal.pc);
sr_sal.pspace = get_frame_program_space (return_frame);
- insert_step_resume_breakpoint_at_sal (gdbarch, sr_sal,
- get_stack_frame_id (return_frame));
+ insert_step_resume_breakpoint_at_sal_1 (gdbarch, sr_sal,
+ get_stack_frame_id (return_frame),
+ bp_hp_step_resume);
}
-/* Similar to insert_step_resume_breakpoint_at_frame, except
- but a breakpoint at the previous frame's PC. This is used to
- skip a function after stepping into it (for "next" or if the called
- function has no debugging information).
+/* Insert a "step-resume breakpoint" at the previous frame's PC. This
+ is used to skip a function after stepping into it (for "next" or if
+ the called function has no debugging information).
The current function has almost always been reached by single
stepping a call or return instruction. NEXT_FRAME belongs to the
resume address.
This is a separate function rather than reusing
- insert_step_resume_breakpoint_at_frame in order to avoid
+ insert_hp_step_resume_breakpoint_at_frame in order to avoid
get_prev_frame, which may stop prematurely (see the implementation
of frame_unwind_caller_id for an example). */
struct frame_info *frame,
struct symbol *sym)
{
- struct gdb_exception e;
+ volatile struct gdb_exception e;
/* We want to ignore errors here. */
TRY_CATCH (e, RETURN_MASK_ERROR)
bp = set_momentary_breakpoint_at_pc (get_frame_arch (frame),
handler, bp_exception_resume);
+
+ /* set_momentary_breakpoint_at_pc invalidates FRAME. */
+ frame = NULL;
+
bp->thread = tp->num;
inferior_thread ()->control.exception_resume_breakpoint = bp;
}
}
}
+/* A helper for check_exception_resume that sets an
+ exception-breakpoint based on a SystemTap probe. */
+
+static void
+insert_exception_resume_from_probe (struct thread_info *tp,
+ const struct probe *probe,
+ struct objfile *objfile,
+ struct frame_info *frame)
+{
+ struct value *arg_value;
+ CORE_ADDR handler;
+ struct breakpoint *bp;
+
+ arg_value = probe_safe_evaluate_at_pc (frame, 1);
+ if (!arg_value)
+ return;
+
+ handler = value_as_address (arg_value);
+
+ if (debug_infrun)
+ fprintf_unfiltered (gdb_stdlog,
+ "infrun: exception resume at %s\n",
+ paddress (get_objfile_arch (objfile),
+ handler));
+
+ bp = set_momentary_breakpoint_at_pc (get_frame_arch (frame),
+ handler, bp_exception_resume);
+ bp->thread = tp->num;
+ inferior_thread ()->control.exception_resume_breakpoint = bp;
+}
+
/* This is called when an exception has been intercepted. Check to
see whether the exception's destination is of interest, and if so,
set an exception resume breakpoint there. */
static void
check_exception_resume (struct execution_control_state *ecs,
- struct frame_info *frame, struct symbol *func)
-{
- struct gdb_exception e;
+ struct frame_info *frame)
+{
+ volatile struct gdb_exception e;
+ struct objfile *objfile;
+ const struct probe *probe;
+ struct symbol *func;
+
+ /* First see if this exception unwinding breakpoint was set via a
+ SystemTap probe point. If so, the probe has two arguments: the
+ CFA and the HANDLER. We ignore the CFA, extract the handler, and
+ set a breakpoint there. */
+ probe = find_probe_by_pc (get_frame_pc (frame), &objfile);
+ if (probe)
+ {
+ insert_exception_resume_from_probe (ecs->event_thread, probe,
+ objfile, frame);
+ return;
+ }
+
+ func = get_frame_function (frame);
+ if (!func)
+ return;
TRY_CATCH (e, RETURN_MASK_ERROR)
{
struct block *b;
- struct dict_iterator iter;
+ struct block_iterator iter;
struct symbol *sym;
int argno = 0;
inferior and not return to debugger. */
if (ecs->event_thread->control.trap_expected
- && ecs->event_thread->suspend.stop_signal != TARGET_SIGNAL_TRAP)
+ && ecs->event_thread->suspend.stop_signal != GDB_SIGNAL_TRAP)
{
/* We took a signal (which we are supposed to pass through to
the inferior, else we'd not get here) and we haven't yet
}
else
{
- struct gdb_exception e;
+ volatile struct gdb_exception e;
/* Stop stepping when inserting breakpoints
has failed. */
simulator; the simulator then delivers the hardware
equivalent of a SIGNAL_TRAP to the program being debugged. */
- if (ecs->event_thread->suspend.stop_signal == TARGET_SIGNAL_TRAP
+ if (ecs->event_thread->suspend.stop_signal == GDB_SIGNAL_TRAP
&& !signal_program[ecs->event_thread->suspend.stop_signal])
- ecs->event_thread->suspend.stop_signal = TARGET_SIGNAL_0;
+ ecs->event_thread->suspend.stop_signal = GDB_SIGNAL_0;
discard_cleanups (old_cleanups);
resume (currently_stepping (ecs->event_thread),
{
if ((!inferior_thread ()->step_multi
|| !inferior_thread ()->control.stop_step)
- && ui_out_is_mi_like_p (uiout))
- ui_out_field_string (uiout, "reason",
+ && ui_out_is_mi_like_p (current_uiout))
+ ui_out_field_string (current_uiout, "reason",
async_reason_lookup (EXEC_ASYNC_END_STEPPING_RANGE));
}
/* The inferior was terminated by a signal, print why it stopped. */
static void
-print_signal_exited_reason (enum target_signal siggnal)
+print_signal_exited_reason (enum gdb_signal siggnal)
{
+ struct ui_out *uiout = current_uiout;
+
annotate_signalled ();
if (ui_out_is_mi_like_p (uiout))
ui_out_field_string
ui_out_text (uiout, "\nProgram terminated with signal ");
annotate_signal_name ();
ui_out_field_string (uiout, "signal-name",
- target_signal_to_name (siggnal));
+ gdb_signal_to_name (siggnal));
annotate_signal_name_end ();
ui_out_text (uiout, ", ");
annotate_signal_string ();
ui_out_field_string (uiout, "signal-meaning",
- target_signal_to_string (siggnal));
+ gdb_signal_to_string (siggnal));
annotate_signal_string_end ();
ui_out_text (uiout, ".\n");
ui_out_text (uiout, "The program no longer exists.\n");
static void
print_exited_reason (int exitstatus)
{
+ struct inferior *inf = current_inferior ();
+ const char *pidstr = target_pid_to_str (pid_to_ptid (inf->pid));
+ struct ui_out *uiout = current_uiout;
+
annotate_exited (exitstatus);
if (exitstatus)
{
if (ui_out_is_mi_like_p (uiout))
ui_out_field_string (uiout, "reason",
async_reason_lookup (EXEC_ASYNC_EXITED));
- ui_out_text (uiout, "\nProgram exited with code ");
+ ui_out_text (uiout, "[Inferior ");
+ ui_out_text (uiout, plongest (inf->num));
+ ui_out_text (uiout, " (");
+ ui_out_text (uiout, pidstr);
+ ui_out_text (uiout, ") exited with code ");
ui_out_field_fmt (uiout, "exit-code", "0%o", (unsigned int) exitstatus);
- ui_out_text (uiout, ".\n");
+ ui_out_text (uiout, "]\n");
}
else
{
if (ui_out_is_mi_like_p (uiout))
ui_out_field_string
(uiout, "reason", async_reason_lookup (EXEC_ASYNC_EXITED_NORMALLY));
- ui_out_text (uiout, "\nProgram exited normally.\n");
+ ui_out_text (uiout, "[Inferior ");
+ ui_out_text (uiout, plongest (inf->num));
+ ui_out_text (uiout, " (");
+ ui_out_text (uiout, pidstr);
+ ui_out_text (uiout, ") exited normally]\n");
}
/* Support the --return-child-result option. */
return_child_result_value = exitstatus;
tells us to print about it. */
static void
-print_signal_received_reason (enum target_signal siggnal)
+print_signal_received_reason (enum gdb_signal siggnal)
{
+ struct ui_out *uiout = current_uiout;
+
annotate_signal ();
- if (siggnal == TARGET_SIGNAL_0 && !ui_out_is_mi_like_p (uiout))
+ if (siggnal == GDB_SIGNAL_0 && !ui_out_is_mi_like_p (uiout))
{
struct thread_info *t = inferior_thread ();
ui_out_field_string
(uiout, "reason", async_reason_lookup (EXEC_ASYNC_SIGNAL_RECEIVED));
ui_out_field_string (uiout, "signal-name",
- target_signal_to_name (siggnal));
+ gdb_signal_to_name (siggnal));
annotate_signal_name_end ();
ui_out_text (uiout, ", ");
annotate_signal_string ();
ui_out_field_string (uiout, "signal-meaning",
- target_signal_to_string (siggnal));
+ gdb_signal_to_string (siggnal));
annotate_signal_string_end ();
}
ui_out_text (uiout, ".\n");
static void
print_no_history_reason (void)
{
- ui_out_text (uiout, "\nNo more reverse-execution history.\n");
+ ui_out_text (current_uiout, "\nNo more reverse-execution history.\n");
}
/* Here to return control to GDB when the inferior stops for real.
if (!non_stop)
make_cleanup (finish_thread_state_cleanup, &minus_one_ptid);
else if (last.kind != TARGET_WAITKIND_SIGNALLED
- && last.kind != TARGET_WAITKIND_EXITED)
+ && last.kind != TARGET_WAITKIND_EXITED
+ && last.kind != TARGET_WAITKIND_NO_RESUMED)
make_cleanup (finish_thread_state_cleanup, &inferior_ptid);
/* In non-stop mode, we don't want GDB to switch threads behind the
&& !ptid_equal (previous_inferior_ptid, inferior_ptid)
&& target_has_execution
&& last.kind != TARGET_WAITKIND_SIGNALLED
- && last.kind != TARGET_WAITKIND_EXITED)
+ && last.kind != TARGET_WAITKIND_EXITED
+ && last.kind != TARGET_WAITKIND_NO_RESUMED)
{
target_terminal_ours_for_output ();
printf_filtered (_("[Switching to %s]\n"),
previous_inferior_ptid = inferior_ptid;
}
+ if (last.kind == TARGET_WAITKIND_NO_RESUMED)
+ {
+ gdb_assert (sync_execution || !target_can_async_p ());
+
+ target_terminal_ours_for_output ();
+ printf_filtered (_("No unwaited-for children left.\n"));
+ }
+
if (!breakpoints_always_inserted_mode () && target_has_execution)
{
if (remove_breakpoints ())
goto done;
target_terminal_ours ();
+ async_enable_stdin ();
/* Set the current source location. This will also happen if we
display the frame below, but the current SAL will be incorrect
int do_frame_printing = 1;
struct thread_info *tp = inferior_thread ();
- bpstat_ret = bpstat_print (tp->control.stop_bpstat);
+ bpstat_ret = bpstat_print (tp->control.stop_bpstat, last.kind);
switch (bpstat_ret)
{
case PRINT_UNKNOWN:
- /* If we had hit a shared library event breakpoint,
- bpstat_print would print out this message. If we hit
- an OS-level shared library event, do the same
- thing. */
- if (last.kind == TARGET_WAITKIND_LOADED)
- {
- printf_filtered (_("Stopped due to shared library event\n"));
- source_flag = SRC_LINE; /* something bogus */
- do_frame_printing = 0;
- break;
- }
-
/* FIXME: cagney/2002-12-01: Given that a frame ID does
(or should) carry around the function and does (or
should) use that when doing a frame comparison. */
/* Save the function value return registers, if we care.
We might be about to restore their previous contents. */
- if (inferior_thread ()->control.proceed_to_finish)
+ if (inferior_thread ()->control.proceed_to_finish
+ && execution_direction != EXEC_REVERSE)
{
/* This should not be necessary. */
if (stop_registers)
if (!target_has_execution
|| last.kind == TARGET_WAITKIND_SIGNALLED
|| last.kind == TARGET_WAITKIND_EXITED
- || (!inferior_thread ()->step_multi
+ || last.kind == TARGET_WAITKIND_NO_RESUMED
+ || (!(inferior_thread ()->step_multi
+ && inferior_thread ()->control.stop_step)
&& !(inferior_thread ()->control.stop_bpstat
&& inferior_thread ()->control.proceed_to_finish)
&& !inferior_thread ()->control.in_infcall))
return signal_program[signo];
}
+static void
+signal_cache_update (int signo)
+{
+ if (signo == -1)
+ {
+ for (signo = 0; signo < (int) GDB_SIGNAL_LAST; signo++)
+ signal_cache_update (signo);
+
+ return;
+ }
+
+ signal_pass[signo] = (signal_stop[signo] == 0
+ && signal_print[signo] == 0
+ && signal_program[signo] == 1);
+}
+
int
signal_stop_update (int signo, int state)
{
int ret = signal_stop[signo];
signal_stop[signo] = state;
+ signal_cache_update (signo);
return ret;
}
int ret = signal_print[signo];
signal_print[signo] = state;
+ signal_cache_update (signo);
return ret;
}
int ret = signal_program[signo];
signal_program[signo] = state;
+ signal_cache_update (signo);
return ret;
}
}
static void
-sig_print_info (enum target_signal oursig)
+sig_print_info (enum gdb_signal oursig)
{
- const char *name = target_signal_to_name (oursig);
+ const char *name = gdb_signal_to_name (oursig);
int name_padding = 13 - strlen (name);
if (name_padding <= 0)
printf_filtered ("%s\t", signal_stop[oursig] ? "Yes" : "No");
printf_filtered ("%s\t", signal_print[oursig] ? "Yes" : "No");
printf_filtered ("%s\t\t", signal_program[oursig] ? "Yes" : "No");
- printf_filtered ("%s\n", target_signal_to_string (oursig));
+ printf_filtered ("%s\n", gdb_signal_to_string (oursig));
}
/* Specify how various signals in the inferior should be handled. */
char **argv;
int digits, wordlen;
int sigfirst, signum, siglast;
- enum target_signal oursig;
+ enum gdb_signal oursig;
int allsigs;
int nsigs;
unsigned char *sigs;
/* Allocate and zero an array of flags for which signals to handle. */
- nsigs = (int) TARGET_SIGNAL_LAST;
+ nsigs = (int) GDB_SIGNAL_LAST;
sigs = (unsigned char *) alloca (nsigs);
memset (sigs, 0, nsigs);
SIGHUP, SIGINT, SIGALRM, etc. will work right anyway. */
sigfirst = siglast = (int)
- target_signal_from_command (atoi (*argv));
+ gdb_signal_from_command (atoi (*argv));
if ((*argv)[digits] == '-')
{
siglast = (int)
- target_signal_from_command (atoi ((*argv) + digits + 1));
+ gdb_signal_from_command (atoi ((*argv) + digits + 1));
}
if (sigfirst > siglast)
{
}
else
{
- oursig = target_signal_from_name (*argv);
- if (oursig != TARGET_SIGNAL_UNKNOWN)
+ oursig = gdb_signal_from_name (*argv);
+ if (oursig != GDB_SIGNAL_UNKNOWN)
{
sigfirst = siglast = (int) oursig;
}
for (signum = sigfirst; signum >= 0 && signum <= siglast; signum++)
{
- switch ((enum target_signal) signum)
+ switch ((enum gdb_signal) signum)
{
- case TARGET_SIGNAL_TRAP:
- case TARGET_SIGNAL_INT:
+ case GDB_SIGNAL_TRAP:
+ case GDB_SIGNAL_INT:
if (!allsigs && !sigs[signum])
{
if (query (_("%s is used by the debugger.\n\
Are you sure you want to change it? "),
- target_signal_to_name ((enum target_signal) signum)))
+ gdb_signal_to_name ((enum gdb_signal) signum)))
{
sigs[signum] = 1;
}
}
}
break;
- case TARGET_SIGNAL_0:
- case TARGET_SIGNAL_DEFAULT:
- case TARGET_SIGNAL_UNKNOWN:
+ case GDB_SIGNAL_0:
+ case GDB_SIGNAL_DEFAULT:
+ case GDB_SIGNAL_UNKNOWN:
/* Make sure that "all" doesn't print these. */
break;
default:
for (signum = 0; signum < nsigs; signum++)
if (sigs[signum])
{
- target_notice_signals (inferior_ptid);
+ signal_cache_update (-1);
+ target_pass_signals ((int) GDB_SIGNAL_LAST, signal_pass);
+ target_program_signals ((int) GDB_SIGNAL_LAST, signal_program);
if (from_tty)
{
if (argBuf)
{
int validFlag = 1;
- enum target_signal oursig;
+ enum gdb_signal oursig;
- oursig = target_signal_from_name (argv[0]);
+ oursig = gdb_signal_from_name (argv[0]);
memset (argBuf, 0, bufLen);
if (strcmp (argv[1], "Q") == 0)
sprintf (argBuf, "%s %s", argv[0], "noprint");
do_cleanups (old_chain);
}
+enum gdb_signal
+gdb_signal_from_command (int num)
+{
+ if (num >= 1 && num <= 15)
+ return (enum gdb_signal) num;
+ error (_("Only signals 1-15 are valid as numeric signals.\n\
+Use \"info signals\" for a list of symbolic signals."));
+}
+
/* Print current contents of the tables set by the handle command.
It is possible we should just be printing signals actually used
by the current target (but for things to work right when switching
static void
signals_info (char *signum_exp, int from_tty)
{
- enum target_signal oursig;
+ enum gdb_signal oursig;
sig_print_header ();
if (signum_exp)
{
/* First see if this is a symbol name. */
- oursig = target_signal_from_name (signum_exp);
- if (oursig == TARGET_SIGNAL_UNKNOWN)
+ oursig = gdb_signal_from_name (signum_exp);
+ if (oursig == GDB_SIGNAL_UNKNOWN)
{
/* No, try numeric. */
oursig =
- target_signal_from_command (parse_and_eval_long (signum_exp));
+ gdb_signal_from_command (parse_and_eval_long (signum_exp));
}
sig_print_info (oursig);
return;
printf_filtered ("\n");
/* These ugly casts brought to you by the native VAX compiler. */
- for (oursig = TARGET_SIGNAL_FIRST;
- (int) oursig < (int) TARGET_SIGNAL_LAST;
- oursig = (enum target_signal) ((int) oursig + 1))
+ for (oursig = GDB_SIGNAL_FIRST;
+ (int) oursig < (int) GDB_SIGNAL_LAST;
+ oursig = (enum gdb_signal) ((int) oursig + 1))
{
QUIT;
- if (oursig != TARGET_SIGNAL_UNKNOWN
- && oursig != TARGET_SIGNAL_DEFAULT && oursig != TARGET_SIGNAL_0)
+ if (oursig != GDB_SIGNAL_UNKNOWN
+ && oursig != GDB_SIGNAL_DEFAULT && oursig != GDB_SIGNAL_0)
sig_print_info (oursig);
}
"to change these tables.\n"));
}
+/* Check if it makes sense to read $_siginfo from the current thread
+ at this point. If not, throw an error. */
+
+static void
+validate_siginfo_access (void)
+{
+ /* No current inferior, no siginfo. */
+ if (ptid_equal (inferior_ptid, null_ptid))
+ error (_("No thread selected."));
+
+ /* Don't try to read from a dead thread. */
+ if (is_exited (inferior_ptid))
+ error (_("The current thread has terminated"));
+
+ /* ... or from a spinning thread. */
+ if (is_running (inferior_ptid))
+ error (_("Selected thread is running."));
+}
+
/* The $_siginfo convenience variable is a bit special. We don't know
for sure the type of the value until we actually have a chance to
- fetch the data. The type can change depending on gdbarch, so it it
+ fetch the data. The type can change depending on gdbarch, so it is
also dependent on which thread you have selected.
1. making $_siginfo be an internalvar that creates a new value on
{
LONGEST transferred;
+ validate_siginfo_access ();
+
transferred =
target_read (¤t_target, TARGET_OBJECT_SIGNAL_INFO,
NULL,
{
LONGEST transferred;
+ validate_siginfo_access ();
+
transferred = target_write (¤t_target,
TARGET_OBJECT_SIGNAL_INFO,
NULL,
error (_("Unable to write siginfo"));
}
-static struct lval_funcs siginfo_value_funcs =
+static const struct lval_funcs siginfo_value_funcs =
{
siginfo_value_read,
siginfo_value_write
if there's no object available. */
static struct value *
-siginfo_make_value (struct gdbarch *gdbarch, struct internalvar *var)
+siginfo_make_value (struct gdbarch *gdbarch, struct internalvar *var,
+ void *ignore)
{
if (target_has_stack
&& !ptid_equal (inferior_ptid, null_ptid)
inf_state->inferior_suspend = inf->suspend;
/* run_inferior_call will not use the signal due to its `proceed' call with
- TARGET_SIGNAL_0 anyway. */
- tp->suspend.stop_signal = TARGET_SIGNAL_0;
+ GDB_SIGNAL_0 anyway. */
+ tp->suspend.stop_signal = GDB_SIGNAL_0;
inf_state->stop_pc = stop_pc;
xfree (inf_status);
}
\f
-int
-inferior_has_forked (ptid_t pid, ptid_t *child_pid)
-{
- struct target_waitstatus last;
- ptid_t last_ptid;
-
- get_last_target_status (&last_ptid, &last);
-
- if (last.kind != TARGET_WAITKIND_FORKED)
- return 0;
-
- if (!ptid_equal (last_ptid, pid))
- return 0;
-
- *child_pid = last.value.related_pid;
- return 1;
-}
-
-int
-inferior_has_vforked (ptid_t pid, ptid_t *child_pid)
-{
- struct target_waitstatus last;
- ptid_t last_ptid;
-
- get_last_target_status (&last_ptid, &last);
-
- if (last.kind != TARGET_WAITKIND_VFORKED)
- return 0;
-
- if (!ptid_equal (last_ptid, pid))
- return 0;
-
- *child_pid = last.value.related_pid;
- return 1;
-}
-
-int
-inferior_has_execd (ptid_t pid, char **execd_pathname)
-{
- struct target_waitstatus last;
- ptid_t last_ptid;
-
- get_last_target_status (&last_ptid, &last);
-
- if (last.kind != TARGET_WAITKIND_EXECD)
- return 0;
-
- if (!ptid_equal (last_ptid, pid))
- return 0;
-
- *execd_pathname = xstrdup (last.value.execd_pathname);
- return 1;
-}
-
-int
-inferior_has_called_syscall (ptid_t pid, int *syscall_number)
-{
- struct target_waitstatus last;
- ptid_t last_ptid;
-
- get_last_target_status (&last_ptid, &last);
-
- if (last.kind != TARGET_WAITKIND_SYSCALL_ENTRY &&
- last.kind != TARGET_WAITKIND_SYSCALL_RETURN)
- return 0;
-
- if (!ptid_equal (last_ptid, pid))
- return 0;
-
- *syscall_number = last.value.syscall_number;
- return 1;
-}
-
-/* Oft used ptids */
-ptid_t null_ptid;
-ptid_t minus_one_ptid;
-
-/* Create a ptid given the necessary PID, LWP, and TID components. */
-
-ptid_t
-ptid_build (int pid, long lwp, long tid)
-{
- ptid_t ptid;
-
- ptid.pid = pid;
- ptid.lwp = lwp;
- ptid.tid = tid;
- return ptid;
-}
-
-/* Create a ptid from just a pid. */
-
-ptid_t
-pid_to_ptid (int pid)
-{
- return ptid_build (pid, 0, 0);
-}
-
-/* Fetch the pid (process id) component from a ptid. */
-
-int
-ptid_get_pid (ptid_t ptid)
-{
- return ptid.pid;
-}
-
-/* Fetch the lwp (lightweight process) component from a ptid. */
-
-long
-ptid_get_lwp (ptid_t ptid)
-{
- return ptid.lwp;
-}
-
-/* Fetch the tid (thread id) component from a ptid. */
-
-long
-ptid_get_tid (ptid_t ptid)
-{
- return ptid.tid;
-}
-
-/* ptid_equal() is used to test equality of two ptids. */
-
-int
-ptid_equal (ptid_t ptid1, ptid_t ptid2)
-{
- return (ptid1.pid == ptid2.pid && ptid1.lwp == ptid2.lwp
- && ptid1.tid == ptid2.tid);
-}
-
-/* Returns true if PTID represents a process. */
-
-int
-ptid_is_pid (ptid_t ptid)
-{
- if (ptid_equal (minus_one_ptid, ptid))
- return 0;
- if (ptid_equal (null_ptid, ptid))
- return 0;
-
- return (ptid_get_lwp (ptid) == 0 && ptid_get_tid (ptid) == 0);
-}
-
int
ptid_match (ptid_t ptid, ptid_t filter)
{
- /* Since both parameters have the same type, prevent easy mistakes
- from happening. */
- gdb_assert (!ptid_equal (ptid, minus_one_ptid)
- && !ptid_equal (ptid, null_ptid));
-
if (ptid_equal (filter, minus_one_ptid))
return 1;
if (ptid_is_pid (filter)
Set exec-direction / show exec-direction commands
(returns error unless target implements to_set_exec_direction method). */
-enum exec_direction_kind execution_direction = EXEC_FORWARD;
+int execution_direction = EXEC_FORWARD;
static const char exec_forward[] = "forward";
static const char exec_reverse[] = "reverse";
static const char *exec_direction = exec_forward;
-static const char *exec_direction_names[] = {
+static const char *const exec_direction_names[] = {
exec_forward,
exec_reverse,
NULL
case EXEC_REVERSE:
fprintf_filtered (out, _("Reverse.\n"));
break;
- case EXEC_ERROR:
default:
- fprintf_filtered (out, _("Forward (target `%s' does not "
- "support exec-direction).\n"),
- target_shortname);
- break;
+ internal_error (__FILE__, __LINE__,
+ _("bogus execution_direction value: %d"),
+ (int) execution_direction);
}
}
"of all processes is %s.\n"), value);
}
+/* Implementation of `siginfo' variable. */
+
+static const struct internalvar_funcs siginfo_funcs =
+{
+ siginfo_make_value,
+ NULL,
+ NULL
+};
+
void
_initialize_infrun (void)
{
&setlist,
&showlist);
- numsigs = (int) TARGET_SIGNAL_LAST;
+ numsigs = (int) GDB_SIGNAL_LAST;
signal_stop = (unsigned char *) xmalloc (sizeof (signal_stop[0]) * numsigs);
signal_print = (unsigned char *)
xmalloc (sizeof (signal_print[0]) * numsigs);
signal_program = (unsigned char *)
xmalloc (sizeof (signal_program[0]) * numsigs);
+ signal_pass = (unsigned char *)
+ xmalloc (sizeof (signal_program[0]) * numsigs);
for (i = 0; i < numsigs; i++)
{
signal_stop[i] = 1;
/* Signals caused by debugger's own actions
should not be given to the program afterwards. */
- signal_program[TARGET_SIGNAL_TRAP] = 0;
- signal_program[TARGET_SIGNAL_INT] = 0;
+ signal_program[GDB_SIGNAL_TRAP] = 0;
+ signal_program[GDB_SIGNAL_INT] = 0;
/* Signals that are not errors should not normally enter the debugger. */
- signal_stop[TARGET_SIGNAL_ALRM] = 0;
- signal_print[TARGET_SIGNAL_ALRM] = 0;
- signal_stop[TARGET_SIGNAL_VTALRM] = 0;
- signal_print[TARGET_SIGNAL_VTALRM] = 0;
- signal_stop[TARGET_SIGNAL_PROF] = 0;
- signal_print[TARGET_SIGNAL_PROF] = 0;
- signal_stop[TARGET_SIGNAL_CHLD] = 0;
- signal_print[TARGET_SIGNAL_CHLD] = 0;
- signal_stop[TARGET_SIGNAL_IO] = 0;
- signal_print[TARGET_SIGNAL_IO] = 0;
- signal_stop[TARGET_SIGNAL_POLL] = 0;
- signal_print[TARGET_SIGNAL_POLL] = 0;
- signal_stop[TARGET_SIGNAL_URG] = 0;
- signal_print[TARGET_SIGNAL_URG] = 0;
- signal_stop[TARGET_SIGNAL_WINCH] = 0;
- signal_print[TARGET_SIGNAL_WINCH] = 0;
- signal_stop[TARGET_SIGNAL_PRIO] = 0;
- signal_print[TARGET_SIGNAL_PRIO] = 0;
+ signal_stop[GDB_SIGNAL_ALRM] = 0;
+ signal_print[GDB_SIGNAL_ALRM] = 0;
+ signal_stop[GDB_SIGNAL_VTALRM] = 0;
+ signal_print[GDB_SIGNAL_VTALRM] = 0;
+ signal_stop[GDB_SIGNAL_PROF] = 0;
+ signal_print[GDB_SIGNAL_PROF] = 0;
+ signal_stop[GDB_SIGNAL_CHLD] = 0;
+ signal_print[GDB_SIGNAL_CHLD] = 0;
+ signal_stop[GDB_SIGNAL_IO] = 0;
+ signal_print[GDB_SIGNAL_IO] = 0;
+ signal_stop[GDB_SIGNAL_POLL] = 0;
+ signal_print[GDB_SIGNAL_POLL] = 0;
+ signal_stop[GDB_SIGNAL_URG] = 0;
+ signal_print[GDB_SIGNAL_URG] = 0;
+ signal_stop[GDB_SIGNAL_WINCH] = 0;
+ signal_print[GDB_SIGNAL_WINCH] = 0;
+ signal_stop[GDB_SIGNAL_PRIO] = 0;
+ signal_print[GDB_SIGNAL_PRIO] = 0;
/* These signals are used internally by user-level thread
implementations. (See signal(5) on Solaris.) Like the above
signals, a healthy program receives and handles them as part of
its normal operation. */
- signal_stop[TARGET_SIGNAL_LWP] = 0;
- signal_print[TARGET_SIGNAL_LWP] = 0;
- signal_stop[TARGET_SIGNAL_WAITING] = 0;
- signal_print[TARGET_SIGNAL_WAITING] = 0;
- signal_stop[TARGET_SIGNAL_CANCEL] = 0;
- signal_print[TARGET_SIGNAL_CANCEL] = 0;
+ signal_stop[GDB_SIGNAL_LWP] = 0;
+ signal_print[GDB_SIGNAL_LWP] = 0;
+ signal_stop[GDB_SIGNAL_WAITING] = 0;
+ signal_print[GDB_SIGNAL_WAITING] = 0;
+ signal_stop[GDB_SIGNAL_CANCEL] = 0;
+ signal_print[GDB_SIGNAL_CANCEL] = 0;
+
+ /* Update cached state. */
+ signal_cache_update (-1);
add_setshow_zinteger_cmd ("stop-on-solib-events", class_support,
&stop_on_solib_events, _("\
Tells gdb whether to detach the child of a fork."),
NULL, NULL, &setlist, &showlist);
+ /* Set/show disable address space randomization mode. */
+
+ add_setshow_boolean_cmd ("disable-randomization", class_support,
+ &disable_randomization, _("\
+Set disabling of debuggee's virtual address space randomization."), _("\
+Show disabling of debuggee's virtual address space randomization."), _("\
+When this mode is on (which is the default), randomization of the virtual\n\
+address space is disabled. Standalone programs run with the randomization\n\
+enabled by default on some platforms."),
+ &set_disable_randomization,
+ &show_disable_randomization,
+ &setlist, &showlist);
+
/* ptid initializations */
- null_ptid = ptid_build (0, 0, 0);
- minus_one_ptid = ptid_build (-1, 0, 0);
inferior_ptid = null_ptid;
target_last_wait_ptid = minus_one_ptid;
value with a void typed value, and when we get here, gdbarch
isn't initialized yet. At this point, we're quite sure there
isn't another convenience variable of the same name. */
- create_internalvar_type_lazy ("_siginfo", siginfo_make_value);
+ create_internalvar_type_lazy ("_siginfo", &siginfo_funcs, NULL);
add_setshow_boolean_cmd ("observer", no_class,
&observer_mode_1, _("\
projects / deliverable / binutils-gdb.git / blobdiff