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* inf-ttrace.c (inf_ttrace_him): Set TTEVT_BPT_SSTEP if available. 

(inf_ttrace_attach): Likewise.
(inf_ttrace_resume_callback): New function.
(inf_ttrace_resume): Don't use TT_PROC_CONTINUE.  Iterate over all
lwps and call inf_ttrace_resume_callback instead.
(inf_ttrace_wait): Handle TTEVT_BPT_SSTEP.
This commit is contained in:
Mark Kettenis 2004-12-11 21:53:58 +00:00
parent d3322e8a42
commit 7ba0e0c29a
2 changed files with 38 additions and 3 deletions
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7
gdb/ChangeLog
View File

@ -1,5 +1,12 @@
2004-12-11 Mark Kettenis <kettenis@gnu.org>
* inf-ttrace.c (inf_ttrace_him): Set TTEVT_BPT_SSTEP if available.
(inf_ttrace_attach): Likewise.
(inf_ttrace_resume_callback): New function.
(inf_ttrace_resume): Don't use TT_PROC_CONTINUE. Iterate over all
lwps and call inf_ttrace_resume_callback instead.
(inf_ttrace_wait): Handle TTEVT_BPT_SSTEP.
* inf-ttrace.c (_initialize_inf_ttrace): Unconditionially compile.
2004-12-10 Michael Snyder <msnyder@redhat.com>

34
gdb/inf-ttrace.c
View File

@ -465,6 +465,9 @@ inf_ttrace_him (int pid)
memset (&tte, 0, sizeof (tte));
tte.tte_events |= TTEVT_EXEC | TTEVT_EXIT;
tte.tte_events |= TTEVT_LWP_CREATE | TTEVT_LWP_EXIT | TTEVT_LWP_TERMINATE;
#ifdef TTEVT_BPT_SSTEP
tte.tte_events |= TTEVT_BPT_SSTEP;
#endif
tte.tte_opts = TTEO_NOSTRCCHLD;
if (ttrace (TT_PROC_SET_EVENT_MASK, pid, 0,
(uintptr_t)&tte, sizeof tte, 0) == -1)
@ -600,6 +603,9 @@ inf_ttrace_attach (char *args, int from_tty)
memset (&tte, 0, sizeof (tte));
tte.tte_events |= TTEVT_EXEC | TTEVT_EXIT;
tte.tte_events |= TTEVT_LWP_CREATE | TTEVT_LWP_EXIT | TTEVT_LWP_TERMINATE;
#ifdef TTEVT_BPT_SSTEP
tte.tte_events |= TTEVT_BPT_SSTEP;
#endif
tte.tte_opts = TTEO_NOSTRCCHLD;
if (ttrace (TT_PROC_SET_EVENT_MASK, pid, 0,
(uintptr_t)&tte, sizeof tte, 0) == -1)
@ -643,6 +649,21 @@ inf_ttrace_detach (char *args, int from_tty)
inferior_ptid = null_ptid;
}
static int
inf_ttrace_resume_callback (struct thread_info *info, void *arg)
{
if (!ptid_equal (info->ptid, inferior_ptid))
{
pid_t pid = ptid_get_pid (info->ptid);
lwpid_t lwpid = ptid_get_lwp (info->ptid);
if (ttrace (TT_LWP_CONTINUE, pid, lwpid, TT_NOPC, 0, 0) == -1)
perror_with_name ("ttrace");
}
return 0;
}
static void
inf_ttrace_resume (ptid_t ptid, int step, enum target_signal signal)
{
@ -660,11 +681,10 @@ inf_ttrace_resume (ptid_t ptid, int step, enum target_signal signal)
if (ttrace (request, pid, lwpid, TT_NOPC, sig, 0) == -1)
perror_with_name ("ttrace");
if (ptid_equal (ptid, minus_one_ptid))
if (ptid_equal (ptid, minus_one_ptid) && inf_ttrace_num_lwps > 0)
{
/* Let all the other threads run too. */
if (ttrace (TT_PROC_CONTINUE, pid, 0, 0, 0, 0) == -1)
perror_with_name ("ttrace");
iterate_over_threads (inf_ttrace_resume_callback, NULL);
}
}
@ -708,6 +728,14 @@ inf_ttrace_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
switch (tts.tts_event)
{
#ifdef TTEVT_BPT_SSTEP
case TTEVT_BPT_SSTEP:
/* Make it look like a breakpoint. */
ourstatus->kind = TARGET_WAITKIND_STOPPED;
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
break;
#endif
case TTEVT_EXEC:
/* Make it look like a breakpoint. */
ourstatus->kind = TARGET_WAITKIND_STOPPED;