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* inf-ttrace.c (inf_ttrace_private_thread_info): New structure type.

Browse source 
(inf_ttrace_delete_dying_threads_callback): New function.
        (inf_ttrace_resume): After resuming the execution, iterate over
        the dying threads to delete them for the thread list.
        (inf_ttrace_wait): on TTEVT_LWP_EXIT and TTEVT_LWP_TERMINATE,
        mark the corresponding thread as dying instead of removing it
        from the thread list.
        (inf_ttrace_thread_alive): return 0 for dying threads.
This commit is contained in:
Jerome Guitton 2007-09-18 12:42:22 +00:00
parent d908d8f43b
commit 60e2c248bc
2 changed files with 47 additions and 5 deletions
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11
gdb/ChangeLog
View file

@ -1,3 +1,14 @@
2007-09-18 Jerome Guitton <guitton@adacore.com>
* inf-ttrace.c (inf_ttrace_private_thread_info): New structure type.
(inf_ttrace_delete_dying_threads_callback): New function.
(inf_ttrace_resume): After resuming the execution, iterate over
the dying threads to delete them for the thread list.
(inf_ttrace_wait): on TTEVT_LWP_EXIT and TTEVT_LWP_TERMINATE,
mark the corresponding thread as dying instead of removing it
from the thread list.
(inf_ttrace_thread_alive): return 0 for dying threads.
2007-09-17 Joel Brobecker <brobecker@adacore.com>
* infrun.c (insert_step_resume_breakpoint_at_frame): Add assertion

41
gdb/inf-ttrace.c
View file

@ -76,6 +76,11 @@ struct inf_ttrace_page_dict
int count; /* Number of pages in this dictionary. */
} inf_ttrace_page_dict;
struct inf_ttrace_private_thread_info
{
int dying;
};
/* Number of lwps that are currently in a system call. */
static int inf_ttrace_num_lwps_in_syscall;
@ -794,6 +799,14 @@ inf_ttrace_resume_callback (struct thread_info *info, void *arg)
return 0;
}
static int
inf_ttrace_delete_dying_threads_callback (struct thread_info *info, void *arg)
{
if (((struct inf_ttrace_private_thread_info *)info->private)->dying == 1)
delete_thread (info->ptid);
return 0;
}
static void
inf_ttrace_resume (ptid_t ptid, int step, enum target_signal signal)
{
@ -815,6 +828,7 @@ inf_ttrace_resume (ptid_t ptid, int step, enum target_signal signal)
{
/* Let all the other threads run too. */
iterate_over_threads (inf_ttrace_resume_callback, NULL);
iterate_over_threads (inf_ttrace_delete_dying_threads_callback, NULL);
}
}
@ -824,6 +838,7 @@ inf_ttrace_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
pid_t pid = ptid_get_pid (ptid);
lwpid_t lwpid = ptid_get_lwp (ptid);
ttstate_t tts;
struct thread_info *ti;
/* Until proven otherwise. */
ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
@ -940,19 +955,31 @@ inf_ttrace_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
{
/* Now that we're going to be multi-threaded, add the
original thread to the list first. */
add_thread (ptid_build (tts.tts_pid, tts.tts_lwpid, 0));
ti = add_thread (ptid_build (tts.tts_pid, tts.tts_lwpid, 0));
ti->private =
xmalloc (sizeof (struct inf_ttrace_private_thread_info));
memset (ti->private, 0,
sizeof (struct inf_ttrace_private_thread_info));
inf_ttrace_num_lwps++;
}
printf_filtered (_("[New %s]\n"), target_pid_to_str (ptid));
add_thread (ptid);
ti = add_thread (ptid);
ti->private =
xmalloc (sizeof (struct inf_ttrace_private_thread_info));
memset (ti->private, 0,
sizeof (struct inf_ttrace_private_thread_info));
inf_ttrace_num_lwps++;
ptid = ptid_build (tts.tts_pid, tts.tts_lwpid, 0);
break;
case TTEVT_LWP_EXIT:
printf_filtered(_("[%s exited]\n"), target_pid_to_str (ptid));
delete_thread (ptid);
ti = find_thread_pid (ptid);
gdb_assert (ti != NULL);
((struct inf_ttrace_private_thread_info *)ti->private)->dying = 1;
inf_ttrace_num_lwps--;
ttrace (TT_LWP_CONTINUE, ptid_get_pid (ptid),
ptid_get_lwp (ptid), TT_NOPC, 0, 0);
/* If we don't return -1 here, core GDB will re-add the thread. */
ptid = minus_one_ptid;
break;
@ -961,7 +988,9 @@ inf_ttrace_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
lwpid = tts.tts_u.tts_thread.tts_target_lwpid;
ptid = ptid_build (tts.tts_pid, lwpid, 0);
printf_filtered(_("[%s has been terminated]\n"), target_pid_to_str (ptid));
delete_thread (ptid);
ti = find_thread_pid (ptid);
gdb_assert (ti != NULL);
((struct inf_ttrace_private_thread_info *)ti->private)->dying = 1;
inf_ttrace_num_lwps--;
ptid = ptid_build (tts.tts_pid, tts.tts_lwpid, 0);
break;
@ -1084,7 +1113,9 @@ inf_ttrace_files_info (struct target_ops *ignore)
static int
inf_ttrace_thread_alive (ptid_t ptid)
{
return 1;
struct thread_info *ti;
ti = find_thread_pid (ptid);
return !(((struct inf_ttrace_private_thread_info *)ti->private)->dying);
}
static char *