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authorJerome Guitton <guitton@adacore.com>2007-09-18 12:42:22 +0000
committerJerome Guitton <guitton@adacore.com>2007-09-18 12:42:22 +0000
commit60e2c248bcf1df7b769c3e91ae191962f3bece25 (patch)
tree9daacf24c9ee3cf0db07a3e4ae66de4f5de12dec /gdb/inf-ttrace.c
parentd908d8f43bdc4fd78e8824d1b71b1d44e8dde096 (diff)
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* 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.
Diffstat (limited to 'gdb/inf-ttrace.c')
-rw-r--r--gdb/inf-ttrace.c41
1 files changed, 36 insertions, 5 deletions
diff --git a/gdb/inf-ttrace.c b/gdb/inf-ttrace.c
index 05bc5a2..420133a 100644
--- a/gdb/inf-ttrace.c
+++ b/gdb/inf-ttrace.c
@@ -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 *