#define O_LARGEFILE 0
#endif
-#ifndef W_STOPCODE
-#define W_STOPCODE(sig) ((sig) << 8 | 0x7f)
-#endif
-
-/* This is the kernel's hard limit. Not to be confused with
- SIGRTMIN. */
-#ifndef __SIGRTMIN
-#define __SIGRTMIN 32
-#endif
-
/* Some targets did not define these ptrace constants from the start,
so gdbserver defines them locally here. In the future, these may
be removed after they are added to asm/ptrace.h. */
static void
add_to_pid_list (struct simple_pid_list **listp, int pid, int status)
{
- struct simple_pid_list *new_pid = xmalloc (sizeof (struct simple_pid_list));
+ struct simple_pid_list *new_pid = XNEW (struct simple_pid_list);
new_pid->pid = pid;
new_pid->status = status;
int *wstat, int options);
static int linux_wait_for_event (ptid_t ptid, int *wstat, int options);
static struct lwp_info *add_lwp (ptid_t ptid);
+static void linux_mourn (struct process_info *process);
static int linux_stopped_by_watchpoint (void);
static void mark_lwp_dead (struct lwp_info *lwp, int wstat);
static int lwp_is_marked_dead (struct lwp_info *lwp);
struct process_info *proc;
proc = add_process (pid, attached);
- proc->priv = xcalloc (1, sizeof (*proc->priv));
+ proc->priv = XCNEW (struct process_info_private);
if (the_low_target.new_process != NULL)
proc->priv->arch_private = the_low_target.new_process ();
static CORE_ADDR get_pc (struct lwp_info *lwp);
-/* Handle a GNU/Linux extended wait response. If we see a clone
- event, we need to add the new LWP to our list (and return 0 so as
- not to report the trap to higher layers). */
+/* Implement the arch_setup target_ops method. */
+
+static void
+linux_arch_setup (void)
+{
+ the_low_target.arch_setup ();
+}
+
+/* Call the target arch_setup function on THREAD. */
+
+static void
+linux_arch_setup_thread (struct thread_info *thread)
+{
+ struct thread_info *saved_thread;
+
+ saved_thread = current_thread;
+ current_thread = thread;
+
+ linux_arch_setup ();
+
+ current_thread = saved_thread;
+}
+
+/* Handle a GNU/Linux extended wait response. If we see a clone,
+ fork, or vfork event, we need to add the new LWP to our list
+ (and return 0 so as not to report the trap to higher layers).
+ If we see an exec event, we will modify ORIG_EVENT_LWP to point
+ to a new LWP representing the new program. */
static int
-handle_extended_wait (struct lwp_info *event_lwp, int wstat)
+handle_extended_wait (struct lwp_info **orig_event_lwp, int wstat)
{
+ struct lwp_info *event_lwp = *orig_event_lwp;
int event = linux_ptrace_get_extended_event (wstat);
struct thread_info *event_thr = get_lwp_thread (event_lwp);
struct lwp_info *new_lwp;
+ gdb_assert (event_lwp->waitstatus.kind == TARGET_WAITKIND_IGNORE);
+
if ((event == PTRACE_EVENT_FORK) || (event == PTRACE_EVENT_VFORK)
|| (event == PTRACE_EVENT_CLONE))
{
&child_proc->raw_breakpoints,
parent_proc->breakpoints);
- tdesc = xmalloc (sizeof (struct target_desc));
+ tdesc = XNEW (struct target_desc);
copy_target_description (tdesc, parent_proc->tdesc);
child_proc->tdesc = tdesc;
new_lwp->status_pending_p = 1;
new_lwp->status_pending = status;
}
+ else if (report_thread_events)
+ {
+ new_lwp->waitstatus.kind = TARGET_WAITKIND_THREAD_CREATED;
+ new_lwp->status_pending_p = 1;
+ new_lwp->status_pending = status;
+ }
/* Don't report the event. */
return 1;
/* Report the event. */
return 0;
}
+ else if (event == PTRACE_EVENT_EXEC && report_exec_events)
+ {
+ struct process_info *proc;
+ ptid_t event_ptid;
+ pid_t event_pid;
+
+ if (debug_threads)
+ {
+ debug_printf ("HEW: Got exec event from LWP %ld\n",
+ lwpid_of (event_thr));
+ }
+
+ /* Get the event ptid. */
+ event_ptid = ptid_of (event_thr);
+ event_pid = ptid_get_pid (event_ptid);
+
+ /* Delete the execing process and all its threads. */
+ proc = get_thread_process (event_thr);
+ linux_mourn (proc);
+ current_thread = NULL;
+
+ /* Create a new process/lwp/thread. */
+ proc = linux_add_process (event_pid, 0);
+ event_lwp = add_lwp (event_ptid);
+ event_thr = get_lwp_thread (event_lwp);
+ gdb_assert (current_thread == event_thr);
+ linux_arch_setup_thread (event_thr);
+
+ /* Set the event status. */
+ event_lwp->waitstatus.kind = TARGET_WAITKIND_EXECD;
+ event_lwp->waitstatus.value.execd_pathname
+ = xstrdup (linux_proc_pid_to_exec_file (lwpid_of (event_thr)));
+
+ /* Mark the exec status as pending. */
+ event_lwp->stopped = 1;
+ event_lwp->status_pending_p = 1;
+ event_lwp->status_pending = wstat;
+ event_thr->last_resume_kind = resume_continue;
+ event_thr->last_status.kind = TARGET_WAITKIND_IGNORE;
+
+ /* Report the event. */
+ *orig_event_lwp = event_lwp;
+ return 0;
+ }
internal_error (__FILE__, __LINE__, _("unknown ptrace event %d"), event);
}
{
if (siginfo.si_signo == SIGTRAP)
{
- if (siginfo.si_code == GDB_ARCH_TRAP_BRKPT)
+ if (GDB_ARCH_IS_TRAP_BRKPT (siginfo.si_code))
{
if (debug_threads)
{
{
struct lwp_info *lwp;
- lwp = (struct lwp_info *) xcalloc (1, sizeof (*lwp));
+ lwp = XCNEW (struct lwp_info);
lwp->waitstatus.kind = TARGET_WAITKIND_IGNORE;
return pid;
}
-/* Implement the arch_setup target_ops method. */
-
-static void
-linux_arch_setup (void)
-{
- the_low_target.arch_setup ();
-}
-
/* Attach to an inferior process. Returns 0 on success, ERRNO on
error. */
return 0;
}
+static void async_file_mark (void);
+
/* Attach to PID. If PID is the tgid, attach to it and all
of its threads. */
static int
linux_attach (unsigned long pid)
{
+ struct process_info *proc;
+ struct thread_info *initial_thread;
ptid_t ptid = ptid_build (pid, pid, 0);
int err;
error ("Cannot attach to process %ld: %s",
pid, linux_ptrace_attach_fail_reason_string (ptid, err));
- linux_add_process (pid, 1);
+ proc = linux_add_process (pid, 1);
- if (!non_stop)
- {
- struct thread_info *thread;
-
- /* Don't ignore the initial SIGSTOP if we just attached to this
- process. It will be collected by wait shortly. */
- thread = find_thread_ptid (ptid_build (pid, pid, 0));
- thread->last_resume_kind = resume_stop;
- }
+ /* Don't ignore the initial SIGSTOP if we just attached to this
+ process. It will be collected by wait shortly. */
+ initial_thread = find_thread_ptid (ptid_build (pid, pid, 0));
+ initial_thread->last_resume_kind = resume_stop;
/* We must attach to every LWP. If /proc is mounted, use that to
find them now. On the one hand, the inferior may be using raw
that once thread_db is loaded, we'll still use it to list threads
and associate pthread info with each LWP. */
linux_proc_attach_tgid_threads (pid, attach_proc_task_lwp_callback);
+
+ /* GDB will shortly read the xml target description for this
+ process, to figure out the process' architecture. But the target
+ description is only filled in when the first process/thread in
+ the thread group reports its initial PTRACE_ATTACH SIGSTOP. Do
+ that now, otherwise, if GDB is fast enough, it could read the
+ target description _before_ that initial stop. */
+ if (non_stop)
+ {
+ struct lwp_info *lwp;
+ int wstat, lwpid;
+ ptid_t pid_ptid = pid_to_ptid (pid);
+
+ lwpid = linux_wait_for_event_filtered (pid_ptid, pid_ptid,
+ &wstat, __WALL);
+ gdb_assert (lwpid > 0);
+
+ lwp = find_lwp_pid (pid_to_ptid (lwpid));
+
+ if (!WIFSTOPPED (wstat) || WSTOPSIG (wstat) != SIGSTOP)
+ {
+ lwp->status_pending_p = 1;
+ lwp->status_pending = wstat;
+ }
+
+ initial_thread->last_resume_kind = resume_continue;
+
+ async_file_mark ();
+
+ gdb_assert (proc->tdesc != NULL);
+ }
+
return 0;
}
static int
second_thread_of_pid_p (struct inferior_list_entry *entry, void *args)
{
- struct counter *counter = args;
+ struct counter *counter = (struct counter *) args;
if (ptid_get_pid (entry->id) == counter->pid)
{
{
struct thread_info *thread = (struct thread_info *) entry;
struct lwp_info *lwp = get_thread_lwp (thread);
- struct process_info *process = proc;
+ struct process_info *process = (struct process_info *) proc;
if (pid_of (thread) == pid_of (process))
delete_lwp (lwp);
if (!lp->status_pending_p)
return 0;
- /* If we got a `vCont;t', but we haven't reported a stop yet, do
- report any status pending the LWP may have. */
- if (thread->last_resume_kind == resume_stop
- && thread->last_status.kind != TARGET_WAITKIND_IGNORE)
- return 0;
-
if (thread->last_resume_kind != resume_stop
&& (lp->stop_reason == TARGET_STOPPED_BY_SW_BREAKPOINT
|| lp->stop_reason == TARGET_STOPPED_BY_HW_BREAKPOINT))
return 1;
}
+/* Returns true if LWP is resumed from the client's perspective. */
+
+static int
+lwp_resumed (struct lwp_info *lwp)
+{
+ struct thread_info *thread = get_lwp_thread (lwp);
+
+ if (thread->last_resume_kind != resume_stop)
+ return 1;
+
+ /* Did gdb send us a `vCont;t', but we haven't reported the
+ corresponding stop to gdb yet? If so, the thread is still
+ resumed/running from gdb's perspective. */
+ if (thread->last_resume_kind == resume_stop
+ && thread->last_status.kind == TARGET_WAITKIND_IGNORE)
+ return 1;
+
+ return 0;
+}
+
/* Return 1 if this lwp has an interesting status pending. */
static int
status_pending_p_callback (struct inferior_list_entry *entry, void *arg)
if (!ptid_match (ptid_of (thread), ptid))
return 0;
+ if (!lwp_resumed (lp))
+ return 0;
+
if (lp->status_pending_p
&& !thread_still_has_status_pending_p (thread))
{
leader_pid, leader_lp!= NULL, num_lwps (leader_pid),
linux_proc_pid_is_zombie (leader_pid));
- if (leader_lp != NULL
+ if (leader_lp != NULL && !leader_lp->stopped
/* Check if there are other threads in the group, as we may
have raced with the inferior simply exiting. */
&& !last_thread_of_process_p (leader_pid)
}
}
- p_sig = xmalloc (sizeof (*p_sig));
+ p_sig = XCNEW (struct pending_signals);
p_sig->prev = lwp->pending_signals_to_report;
p_sig->signal = WSTOPSIG (*wstat);
- memset (&p_sig->info, 0, sizeof (siginfo_t));
+
ptrace (PTRACE_GETSIGINFO, lwpid_of (thread), (PTRACE_TYPE_ARG3) 0,
&p_sig->info);
if (report_vfork_events)
options |= (PTRACE_O_TRACEVFORK | PTRACE_O_TRACEVFORKDONE);
+ if (report_exec_events)
+ options |= PTRACE_O_TRACEEXEC;
+
return options;
}
child = find_lwp_pid (pid_to_ptid (lwpid));
+ /* Check for stop events reported by a process we didn't already
+ know about - anything not already in our LWP list.
+
+ If we're expecting to receive stopped processes after
+ fork, vfork, and clone events, then we'll just add the
+ new one to our list and go back to waiting for the event
+ to be reported - the stopped process might be returned
+ from waitpid before or after the event is.
+
+ But note the case of a non-leader thread exec'ing after the
+ leader having exited, and gone from our lists (because
+ check_zombie_leaders deleted it). The non-leader thread
+ changes its tid to the tgid. */
+
+ if (WIFSTOPPED (wstat) && child == NULL && WSTOPSIG (wstat) == SIGTRAP
+ && linux_ptrace_get_extended_event (wstat) == PTRACE_EVENT_EXEC)
+ {
+ ptid_t child_ptid;
+
+ /* A multi-thread exec after we had seen the leader exiting. */
+ if (debug_threads)
+ {
+ debug_printf ("LLW: Re-adding thread group leader LWP %d"
+ "after exec.\n", lwpid);
+ }
+
+ child_ptid = ptid_build (lwpid, lwpid, 0);
+ child = add_lwp (child_ptid);
+ child->stopped = 1;
+ current_thread = child->thread;
+ }
+
/* If we didn't find a process, one of two things presumably happened:
- A process we started and then detached from has exited. Ignore it.
- A process we are controlling has forked and the new child's stop
{
if (debug_threads)
debug_printf ("LLFE: %d exited.\n", lwpid);
- if (num_lwps (pid_of (thread)) > 1)
+ /* If there is at least one more LWP, then the exit signal was
+ not the end of the debugged application and should be
+ ignored, unless GDB wants to hear about thread exits. */
+ if (report_thread_events
+ || last_thread_of_process_p (pid_of (thread)))
{
-
- /* If there is at least one more LWP, then the exit signal was
- not the end of the debugged application and should be
- ignored. */
- delete_lwp (child);
- return NULL;
+ /* Since events are serialized to GDB core, and we can't
+ report this one right now. Leave the status pending for
+ the next time we're able to report it. */
+ mark_lwp_dead (child, wstat);
+ return child;
}
else
{
- /* This was the last lwp in the process. Since events are
- serialized to GDB core, and we can't report this one
- right now, but GDB core and the other target layers will
- want to be notified about the exit code/signal, leave the
- status pending for the next time we're able to report
- it. */
- mark_lwp_dead (child, wstat);
- return child;
+ delete_lwp (child);
+ return NULL;
}
}
{
if (proc->attached)
{
- struct thread_info *saved_thread;
-
/* This needs to happen after we have attached to the
inferior and it is stopped for the first time, but
before we access any inferior registers. */
- saved_thread = current_thread;
- current_thread = thread;
-
- the_low_target.arch_setup ();
-
- current_thread = saved_thread;
+ linux_arch_setup_thread (thread);
}
else
{
&& linux_is_extended_waitstatus (wstat))
{
child->stop_pc = get_pc (child);
- if (handle_extended_wait (child, wstat))
+ if (handle_extended_wait (&child, wstat))
{
/* The event has been handled, so just return without
reporting it. */
if (lp->stopped
&& !lp->suspended
&& !lp->status_pending_p
- && thread->last_resume_kind != resume_stop
&& thread->last_status.kind == TARGET_WAITKIND_IGNORE)
{
int step = thread->last_resume_kind == resume_step;
- When a non-leader thread execs, that thread just vanishes
without reporting an exit (so we'd hang if we waited for it
explicitly in that case). The exec event is reported to
- the TGID pid (although we don't currently enable exec
- events). */
+ the TGID pid. */
errno = 0;
ret = my_waitpid (-1, wstatp, options | WNOHANG);
current_thread = event_thread;
- /* Check for thread exit. */
- if (! WIFSTOPPED (*wstatp))
- {
- gdb_assert (last_thread_of_process_p (pid_of (event_thread)));
-
- if (debug_threads)
- debug_printf ("LWP %d is the last lwp of process. "
- "Process %ld exiting.\n",
- pid_of (event_thread), lwpid_of (event_thread));
- return lwpid_of (event_thread);
- }
-
return lwpid_of (event_thread);
}
{
struct thread_info *thread = (struct thread_info *) entry;
struct lwp_info *lp = get_thread_lwp (thread);
- int *count = data;
+ int *count = (int *) data;
gdb_assert (count != NULL);
{
struct thread_info *thread = (struct thread_info *) entry;
struct lwp_info *lp = get_thread_lwp (thread);
- int *selector = data;
+ int *selector = (int *) data;
gdb_assert (selector != NULL);
}
}
-static void async_file_mark (void);
-
/* Convenience function that is called when the kernel reports an
event that is not passed out to GDB. */
return null_ptid;
}
+/* Convenience function that is called when the kernel reports an exit
+ event. This decides whether to report the event to GDB as a
+ process exit event, a thread exit event, or to suppress the
+ event. */
+
+static ptid_t
+filter_exit_event (struct lwp_info *event_child,
+ struct target_waitstatus *ourstatus)
+{
+ struct thread_info *thread = get_lwp_thread (event_child);
+ ptid_t ptid = ptid_of (thread);
+
+ if (!last_thread_of_process_p (pid_of (thread)))
+ {
+ if (report_thread_events)
+ ourstatus->kind = TARGET_WAITKIND_THREAD_EXITED;
+ else
+ ourstatus->kind = TARGET_WAITKIND_IGNORE;
+
+ delete_lwp (event_child);
+ }
+ return ptid;
+}
+
/* Wait for process, returns status. */
static ptid_t
}
}
+ if (ourstatus->kind == TARGET_WAITKIND_EXITED)
+ return filter_exit_event (event_child, ourstatus);
+
return ptid_of (current_thread);
}
if (!ptid_equal (step_over_bkpt, null_ptid)
&& event_child->stop_reason == TARGET_STOPPED_BY_SW_BREAKPOINT)
{
- unsigned int increment_pc = the_low_target.breakpoint_len;
+ int increment_pc = 0;
+ int breakpoint_kind = 0;
+ CORE_ADDR stop_pc = event_child->stop_pc;
+
+ breakpoint_kind = the_target->breakpoint_kind_from_pc (&stop_pc);
+ the_target->sw_breakpoint_from_kind (breakpoint_kind, &increment_pc);
if (debug_threads)
{
debug_exit ();
}
+ if (ourstatus->kind == TARGET_WAITKIND_EXITED)
+ return filter_exit_event (event_child, ourstatus);
+
return ptid_of (current_thread);
}
if (debug_threads)
debug_printf ("Previously current thread died.\n");
- if (non_stop)
- {
- /* We can't change the current inferior behind GDB's back,
- otherwise, a subsequent command may apply to the wrong
- process. */
- current_thread = NULL;
- }
- else
- {
- /* Set a valid thread as current. */
- set_desired_thread (0);
- }
+ /* We can't change the current inferior behind GDB's back,
+ otherwise, a subsequent command may apply to the wrong
+ process. */
+ current_thread = NULL;
}
}
static void
enqueue_pending_signal (struct lwp_info *lwp, int signal, siginfo_t *info)
{
- struct pending_signals *p_sig;
+ struct pending_signals *p_sig = XNEW (struct pending_signals);
- p_sig = xmalloc (sizeof (*p_sig));
p_sig->prev = lwp->pending_signals;
p_sig->signal = signal;
if (info == NULL)
if (lwp->stopped == 0)
return;
+ gdb_assert (lwp->waitstatus.kind == TARGET_WAITKIND_IGNORE);
+
fast_tp_collecting = lwp->collecting_fast_tracepoint;
gdb_assert (!stabilizing_threads || fast_tp_collecting);
|| lwp->bp_reinsert != 0
|| fast_tp_collecting))
{
- struct pending_signals *p_sig;
- p_sig = xmalloc (sizeof (*p_sig));
+ struct pending_signals *p_sig = XNEW (struct pending_signals);
+
p_sig->prev = lwp->pending_signals;
p_sig->signal = signal;
if (info == NULL)
int ndx;
struct thread_resume_array *r;
- r = arg;
+ r = (struct thread_resume_array *) arg;
for (ndx = 0; ndx < r->n; ndx++)
{
/* If we have a new signal, enqueue the signal. */
if (lwp->resume->sig != 0)
{
- struct pending_signals *p_sig;
- p_sig = xmalloc (sizeof (*p_sig));
+ struct pending_signals *p_sig = XCNEW (struct pending_signals);
+
p_sig->prev = lwp->pending_signals;
p_sig->signal = lwp->resume->sig;
- memset (&p_sig->info, 0, sizeof (siginfo_t));
/* If this is the same signal we were previously stopped by,
make sure to queue its siginfo. We can ignore the return
dr_offset = regset - info->regsets;
if (info->disabled_regsets == NULL)
- info->disabled_regsets = xcalloc (1, info->num_regsets);
+ info->disabled_regsets = (char *) xcalloc (1, info->num_regsets);
info->disabled_regsets[dr_offset] = 1;
}
size = ((register_size (regcache->tdesc, regno)
+ sizeof (PTRACE_XFER_TYPE) - 1)
& -sizeof (PTRACE_XFER_TYPE));
- buf = alloca (size);
+ buf = (char *) alloca (size);
pid = lwpid_of (current_thread);
for (i = 0; i < size; i += sizeof (PTRACE_XFER_TYPE))
size = ((register_size (regcache->tdesc, regno)
+ sizeof (PTRACE_XFER_TYPE) - 1)
& -sizeof (PTRACE_XFER_TYPE));
- buf = alloca (size);
+ buf = (char *) alloca (size);
memset (buf, 0, size);
if (the_low_target.collect_ptrace_register)
count = ((((memaddr + len) - addr) + sizeof (PTRACE_XFER_TYPE) - 1)
/ sizeof (PTRACE_XFER_TYPE));
/* Allocate buffer of that many longwords. */
- buffer = (PTRACE_XFER_TYPE *) alloca (count * sizeof (PTRACE_XFER_TYPE));
+ buffer = XALLOCAVEC (PTRACE_XFER_TYPE, count);
/* Read all the longwords */
errno = 0;
/ sizeof (PTRACE_XFER_TYPE);
/* Allocate buffer of that many longwords. */
- register PTRACE_XFER_TYPE *buffer = (PTRACE_XFER_TYPE *)
- alloca (count * sizeof (PTRACE_XFER_TYPE));
+ register PTRACE_XFER_TYPE *buffer = XALLOCAVEC (PTRACE_XFER_TYPE, count);
int pid = lwpid_of (current_thread);
return USE_SIGTRAP_SIGINFO;
}
-/* Implement the supports_conditional_breakpoints target_ops
- method. */
+/* Implement the supports_hardware_single_step target_ops method. */
static int
-linux_supports_conditional_breakpoints (void)
+linux_supports_hardware_single_step (void)
{
- /* GDBserver needs to step over the breakpoint if the condition is
- false. GDBserver software single step is too simple, so disable
- conditional breakpoints if the target doesn't have hardware single
- step. */
return can_hardware_single_step ();
}
return linux_supports_tracefork ();
}
+/* Check if exec events are supported. */
+
+static int
+linux_supports_exec_events (void)
+{
+ return linux_supports_traceexec ();
+}
+
/* Callback for 'find_inferior'. Set the (possibly changed) ptrace
options for the specified lwp. */
#endif /* defined PT_GETDSBT || defined PTRACE_GETFDPIC */
static void
-linux_process_qsupported (const char *query)
+linux_process_qsupported (char **features, int count)
{
if (the_low_target.process_qsupported != NULL)
- the_low_target.process_qsupported (query);
+ the_low_target.process_qsupported (features, count);
}
static int
return 0;
gdb_assert (num_phdr < 100); /* Basic sanity check. */
- phdr_buf = alloca (num_phdr * phdr_size);
+ phdr_buf = (unsigned char *) alloca (num_phdr * phdr_size);
if (linux_read_memory (phdr_memaddr, phdr_buf, num_phdr * phdr_size))
return 0;
}
}
- document = xmalloc (allocated);
+ document = (char *) xmalloc (allocated);
strcpy (document, "<library-list-svr4 version=\"1.0\"");
p = document + strlen (document);
/* Expand to guarantee sufficient storage. */
uintptr_t document_len = p - document;
- document = xrealloc (document, 2 * allocated);
+ document = (char *) xrealloc (document, 2 * allocated);
allocated *= 2;
p = document + document_len;
}
#ifdef HAVE_LINUX_BTRACE
-/* See to_enable_btrace target method. */
-
-static struct btrace_target_info *
-linux_low_enable_btrace (ptid_t ptid, const struct btrace_config *conf)
-{
- struct btrace_target_info *tinfo;
-
- tinfo = linux_enable_btrace (ptid, conf);
-
- if (tinfo != NULL && tinfo->ptr_bits == 0)
- {
- struct thread_info *thread = find_thread_ptid (ptid);
- struct regcache *regcache = get_thread_regcache (thread, 0);
-
- tinfo->ptr_bits = register_size (regcache->tdesc, 0) * 8;
- }
-
- return tinfo;
-}
-
/* See to_disable_btrace target method. */
static int
static int
linux_low_read_btrace (struct btrace_target_info *tinfo, struct buffer *buffer,
- int type)
+ enum btrace_read_type type)
{
struct btrace_data btrace;
struct btrace_block *block;
return ptid_of (current_thread);
}
+/* Implementation of the target_ops method "breakpoint_kind_from_pc". */
+
+static int
+linux_breakpoint_kind_from_pc (CORE_ADDR *pcptr)
+{
+ if (the_low_target.breakpoint_kind_from_pc != NULL)
+ return (*the_low_target.breakpoint_kind_from_pc) (pcptr);
+ else
+ return default_breakpoint_kind_from_pc (pcptr);
+}
+
+/* Implementation of the target_ops method "sw_breakpoint_from_kind". */
+
+static const gdb_byte *
+linux_sw_breakpoint_from_kind (int kind, int *size)
+{
+ gdb_assert (the_low_target.sw_breakpoint_from_kind != NULL);
+
+ return (*the_low_target.sw_breakpoint_from_kind) (kind, size);
+}
+
static struct target_ops linux_target_ops = {
linux_create_inferior,
linux_arch_setup,
linux_supports_stopped_by_sw_breakpoint,
linux_stopped_by_hw_breakpoint,
linux_supports_stopped_by_hw_breakpoint,
- linux_supports_conditional_breakpoints,
+ linux_supports_hardware_single_step,
linux_stopped_by_watchpoint,
linux_stopped_data_address,
#if defined(__UCLIBC__) && defined(HAS_NOMMU) \
linux_supports_multi_process,
linux_supports_fork_events,
linux_supports_vfork_events,
+ linux_supports_exec_events,
linux_handle_new_gdb_connection,
#ifdef USE_THREAD_DB
thread_db_handle_monitor_command,
linux_supports_agent,
#ifdef HAVE_LINUX_BTRACE
linux_supports_btrace,
- linux_low_enable_btrace,
+ linux_enable_btrace,
linux_low_disable_btrace,
linux_low_read_btrace,
linux_low_btrace_conf,
linux_mntns_open_cloexec,
linux_mntns_unlink,
linux_mntns_readlink,
+ linux_breakpoint_kind_from_pc,
+ linux_sw_breakpoint_from_kind,
+ linux_proc_tid_get_name,
};
static void
initialize_low (void)
{
struct sigaction sigchld_action;
+
memset (&sigchld_action, 0, sizeof (sigchld_action));
set_target_ops (&linux_target_ops);
- set_breakpoint_data (the_low_target.breakpoint,
- the_low_target.breakpoint_len);
+
linux_init_signals ();
linux_ptrace_init_warnings ();
projects / deliverable / binutils-gdb.git / blobdiff