static int kill_lwp (int lwpid, int signo);
-static int stop_callback (struct lwp_info *lp, void *data);
-static int resume_stopped_resumed_lwps (struct lwp_info *lp, void *data);
+static int stop_callback (struct lwp_info *lp);
static void block_child_signals (sigset_t *prev_mask);
static void restore_child_signals_mask (sigset_t *prev_mask);
\f
/* Prototypes for local functions. */
-static int stop_wait_callback (struct lwp_info *lp, void *data);
-static int resume_stopped_resumed_lwps (struct lwp_info *lp, void *data);
+static int stop_wait_callback (struct lwp_info *lp);
+static int resume_stopped_resumed_lwps (struct lwp_info *lp, const ptid_t wait_ptid);
static int check_ptrace_stopped_lwp_gone (struct lwp_info *lp);
\f
struct lwp_info *
iterate_over_lwps (ptid_t filter,
- iterate_over_lwps_ftype callback,
- void *data)
+ gdb::function_view<iterate_over_lwps_ftype> callback)
{
struct lwp_info *lp, *lpnext;
if (lp->ptid.matches (filter))
{
- if ((*callback) (lp, data) != 0)
+ if (callback (lp) != 0)
return lp;
}
}
}
static int
-detach_callback (struct lwp_info *lp, void *data)
+detach_callback (struct lwp_info *lp)
{
/* We don't actually detach from the thread group leader just yet.
If the thread group exits, we must reap the zombie clone lwps
/* Stop all threads before detaching. ptrace requires that the
thread is stopped to sucessfully detach. */
- iterate_over_lwps (ptid_t (pid), stop_callback, NULL);
+ iterate_over_lwps (ptid_t (pid), stop_callback);
/* ... and wait until all of them have reported back that
they're no longer running. */
- iterate_over_lwps (ptid_t (pid), stop_wait_callback, NULL);
+ iterate_over_lwps (ptid_t (pid), stop_wait_callback);
- iterate_over_lwps (ptid_t (pid), detach_callback, NULL);
+ iterate_over_lwps (ptid_t (pid), detach_callback);
/* Only the initial process should be left right now. */
gdb_assert (num_lwps (pid) == 1);
Resume LWP with the last stop signal, if it is in pass state. */
static int
-linux_nat_resume_callback (struct lwp_info *lp, void *except)
+linux_nat_resume_callback (struct lwp_info *lp, struct lwp_info *except)
{
enum gdb_signal signo = GDB_SIGNAL_0;
}
static int
-resume_clear_callback (struct lwp_info *lp, void *data)
+resume_clear_callback (struct lwp_info *lp)
{
lp->resumed = 0;
lp->last_resume_kind = resume_stop;
}
static int
-resume_set_callback (struct lwp_info *lp, void *data)
+resume_set_callback (struct lwp_info *lp)
{
lp->resumed = 1;
lp->last_resume_kind = resume_continue;
|| ptid.is_pid ());
/* Mark the lwps we're resuming as resumed. */
- iterate_over_lwps (ptid, resume_set_callback, NULL);
+ iterate_over_lwps (ptid, resume_set_callback);
/* See if it's the current inferior that should be handled
specially. */
}
if (resume_many)
- iterate_over_lwps (ptid, linux_nat_resume_callback, lp);
+ iterate_over_lwps (ptid, [=] (struct lwp_info *info)
+ {
+ return linux_nat_resume_callback (info, lp);
+ });
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,
/* Send a SIGSTOP to LP. */
static int
-stop_callback (struct lwp_info *lp, void *data)
+stop_callback (struct lwp_info *lp)
{
if (!lp->stopped && !lp->signalled)
{
void
linux_stop_lwp (struct lwp_info *lwp)
{
- stop_callback (lwp, NULL);
+ stop_callback (lwp);
}
/* See linux-nat.h */
linux_stop_and_wait_all_lwps (void)
{
/* Stop all LWP's ... */
- iterate_over_lwps (minus_one_ptid, stop_callback, NULL);
+ iterate_over_lwps (minus_one_ptid, stop_callback);
/* ... and wait until all of them have reported back that
they're no longer running. */
- iterate_over_lwps (minus_one_ptid, stop_wait_callback, NULL);
+ iterate_over_lwps (minus_one_ptid, stop_wait_callback);
}
/* See linux-nat.h */
linux_unstop_all_lwps (void)
{
iterate_over_lwps (minus_one_ptid,
- resume_stopped_resumed_lwps, &minus_one_ptid);
+ [] (struct lwp_info *info)
+ {
+ return resume_stopped_resumed_lwps (info, minus_one_ptid);
+ });
}
/* Return non-zero if LWP PID has a pending SIGINT. */
/* Set a flag in LP indicating that we should ignore its next SIGINT. */
static int
-set_ignore_sigint (struct lwp_info *lp, void *data)
+set_ignore_sigint (struct lwp_info *lp)
{
/* If a thread has a pending SIGINT, consume it; otherwise, set a
flag to consume the next one. */
/* Wait until LP is stopped. */
static int
-stop_wait_callback (struct lwp_info *lp, void *data)
+stop_wait_callback (struct lwp_info *lp)
{
struct inferior *inf = find_inferior_ptid (lp->ptid);
target_pid_to_str (lp->ptid),
errno ? safe_strerror (errno) : "OK");
- return stop_wait_callback (lp, NULL);
+ return stop_wait_callback (lp);
}
maybe_clear_ignore_sigint (lp);
caused the stop became uninteresting. */
static int
-status_callback (struct lwp_info *lp, void *data)
+status_callback (struct lwp_info *lp)
{
/* Only report a pending wait status if we pretend that this has
indeed been resumed. */
/* Count the LWP's that have had events. */
static int
-count_events_callback (struct lwp_info *lp, void *data)
+count_events_callback (struct lwp_info *lp, int *count)
{
- int *count = (int *) data;
-
gdb_assert (count != NULL);
/* Select only resumed LWPs that have an event pending. */
/* Select the LWP (if any) that is currently being single-stepped. */
static int
-select_singlestep_lwp_callback (struct lwp_info *lp, void *data)
+select_singlestep_lwp_callback (struct lwp_info *lp)
{
if (lp->last_resume_kind == resume_step
&& lp->status != 0)
/* Select the Nth LWP that has had an event. */
static int
-select_event_lwp_callback (struct lwp_info *lp, void *data)
+select_event_lwp_callback (struct lwp_info *lp, int *selector)
{
- int *selector = (int *) data;
-
gdb_assert (selector != NULL);
/* Select only resumed LWPs that have an event pending. */
signal. */
if (!target_is_non_stop_p ())
{
- event_lp = iterate_over_lwps (filter,
- select_singlestep_lwp_callback, NULL);
+ event_lp = iterate_over_lwps (filter, select_singlestep_lwp_callback);
if (event_lp != NULL)
{
if (debug_linux_nat)
/* Pick one at random, out of those which have had events. */
/* First see how many events we have. */
- iterate_over_lwps (filter, count_events_callback, &num_events);
+ iterate_over_lwps (filter,
+ [&] (struct lwp_info *info)
+ {
+ return count_events_callback (info, &num_events);
+ });
gdb_assert (num_events > 0);
/* Now randomly pick a LWP out of those that have had
"SEL: Found %d events, selecting #%d\n",
num_events, random_selector);
- event_lp = iterate_over_lwps (filter,
- select_event_lwp_callback,
- &random_selector);
+ event_lp
+ = (iterate_over_lwps
+ (filter,
+ [&] (struct lwp_info *info)
+ {
+ return select_event_lwp_callback (info,
+ &random_selector);
+ }));
}
if (event_lp != NULL)
/* Return non-zero if LP has been resumed. */
static int
-resumed_callback (struct lwp_info *lp, void *data)
+resumed_callback (struct lwp_info *lp)
{
return lp->resumed;
}
will receive it - unless they're using CLONE_THREAD to
share signals. Since we only want to report it once, we
mark it as ignored for all LWPs except this one. */
- iterate_over_lwps (ptid_t (lp->ptid.pid ()),
- set_ignore_sigint, NULL);
+ iterate_over_lwps (ptid_t (lp->ptid.pid ()), set_ignore_sigint);
lp->ignore_sigint = 0;
}
else
block_child_signals (&prev_mask);
/* First check if there is a LWP with a wait status pending. */
- lp = iterate_over_lwps (ptid, status_callback, NULL);
+ lp = iterate_over_lwps (ptid, status_callback);
if (lp != NULL)
{
if (debug_linux_nat)
/* Now that we've pulled all events out of the kernel, resume
LWPs that don't have an interesting event to report. */
iterate_over_lwps (minus_one_ptid,
- resume_stopped_resumed_lwps, &minus_one_ptid);
+ [] (struct lwp_info *info)
+ {
+ return resume_stopped_resumed_lwps (info, minus_one_ptid);
+ });
/* ... and find an LWP with a status to report to the core, if
any. */
- lp = iterate_over_lwps (ptid, status_callback, NULL);
+ lp = iterate_over_lwps (ptid, status_callback);
if (lp != NULL)
break;
/* If there are no resumed children left, bail. We'd be stuck
forever in the sigsuspend call below otherwise. */
- if (iterate_over_lwps (ptid, resumed_callback, NULL) == NULL)
+ if (iterate_over_lwps (ptid, resumed_callback) == NULL)
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog, "LLW: exit (no resumed LWP)\n");
if (!target_is_non_stop_p ())
{
/* Now stop all other LWP's ... */
- iterate_over_lwps (minus_one_ptid, stop_callback, NULL);
+ iterate_over_lwps (minus_one_ptid, stop_callback);
/* ... and wait until all of them have reported back that
they're no longer running. */
- iterate_over_lwps (minus_one_ptid, stop_wait_callback, NULL);
+ iterate_over_lwps (minus_one_ptid, stop_wait_callback);
}
/* If we're not waiting for a specific LWP, choose an event LWP from
{
/* In all-stop, from the core's perspective, all LWPs are now
stopped until a new resume action is sent over. */
- iterate_over_lwps (minus_one_ptid, resume_clear_callback, NULL);
+ iterate_over_lwps (minus_one_ptid, resume_clear_callback);
}
else
{
- resume_clear_callback (lp, NULL);
+ resume_clear_callback (lp);
}
if (linux_target->low_status_is_event (status))
to report, but are resumed from the core's perspective. */
static int
-resume_stopped_resumed_lwps (struct lwp_info *lp, void *data)
+resume_stopped_resumed_lwps (struct lwp_info *lp, const ptid_t wait_ptid)
{
- ptid_t *wait_ptid_p = (ptid_t *) data;
-
if (!lp->stopped)
{
if (debug_linux_nat)
/* Don't bother if there's a breakpoint at PC that we'd hit
immediately, and we're not waiting for this LWP. */
- if (!lp->ptid.matches (*wait_ptid_p))
+ if (!lp->ptid.matches (wait_ptid))
{
if (breakpoint_inserted_here_p (regcache->aspace (), pc))
leave_stopped = 1;
meanwhile the event became uninteresting. Don't bother resuming
LWPs we're not going to wait for if they'd stop immediately. */
if (target_is_non_stop_p ())
- iterate_over_lwps (minus_one_ptid, resume_stopped_resumed_lwps, &ptid);
+ iterate_over_lwps (minus_one_ptid,
+ [=] (struct lwp_info *info)
+ {
+ return resume_stopped_resumed_lwps (info, ptid);
+ });
event_ptid = linux_nat_wait_1 (ptid, ourstatus, target_options);
/* Callback for iterate_over_lwps. */
static int
-kill_callback (struct lwp_info *lp, void *data)
+kill_callback (struct lwp_info *lp)
{
kill_one_lwp (lp->ptid.lwp ());
return 0;
/* Callback for iterate_over_lwps. */
static int
-kill_wait_callback (struct lwp_info *lp, void *data)
+kill_wait_callback (struct lwp_info *lp)
{
kill_wait_one_lwp (lp->ptid.lwp ());
return 0;
/* Stop all threads before killing them, since ptrace requires
that the thread is stopped to sucessfully PTRACE_KILL. */
- iterate_over_lwps (ptid, stop_callback, NULL);
+ iterate_over_lwps (ptid, stop_callback);
/* ... and wait until all of them have reported back that
they're no longer running. */
- iterate_over_lwps (ptid, stop_wait_callback, NULL);
+ iterate_over_lwps (ptid, stop_wait_callback);
/* Kill all LWP's ... */
- iterate_over_lwps (ptid, kill_callback, NULL);
+ iterate_over_lwps (ptid, kill_callback);
/* ... and wait until we've flushed all events. */
- iterate_over_lwps (ptid, kill_wait_callback, NULL);
+ iterate_over_lwps (ptid, kill_wait_callback);
}
target_mourn_inferior (inferior_ptid);
event came out. */
static int
-linux_nat_stop_lwp (struct lwp_info *lwp, void *data)
+linux_nat_stop_lwp (struct lwp_info *lwp)
{
if (!lwp->stopped)
{
return 0;
}
- stop_callback (lwp, NULL);
+ stop_callback (lwp);
lwp->last_resume_kind = resume_stop;
}
else
void
linux_nat_target::stop (ptid_t ptid)
{
- iterate_over_lwps (ptid, linux_nat_stop_lwp, NULL);
+ iterate_over_lwps (ptid, linux_nat_stop_lwp);
}
void
projects / binutils-gdb.git / commitdiff