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-rw-r--r--gdb/ChangeLog6
-rw-r--r--gdb/linux-nat.c27
2 files changed, 24 insertions, 9 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 0d655ba..1f2db50 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,11 @@
2010-07-27 Jan Kratochvil <jan.kratochvil@redhat.com>
+ * linux-nat.c (linux_nat_lp_status_is_event): New function.
+ (count_events_callback, select_event_lwp_callback)
+ (cancel_breakpoints_callback, linux_nat_wait_1): Use it.
+
+2010-07-27 Jan Kratochvil <jan.kratochvil@redhat.com>
+
* ia64-linux-nat.c (ia64_linux_status_is_event): New function.
(_initialize_ia64_linux_nat): Install it.
* linux-nat.c (sigtrap_is_event, linux_nat_status_is_event)
diff --git a/gdb/linux-nat.c b/gdb/linux-nat.c
index 152c17f..f697a9a 100644
--- a/gdb/linux-nat.c
+++ b/gdb/linux-nat.c
@@ -2617,6 +2617,20 @@ sigtrap_is_event (int status)
static int (*linux_nat_status_is_event) (int status) = sigtrap_is_event;
+/* Check for SIGTRAP-like events in LP. */
+
+static int
+linux_nat_lp_status_is_event (struct lwp_info *lp)
+{
+ /* We check for lp->waitstatus in addition to lp->status, because we can
+ have pending process exits recorded in lp->status
+ and W_EXITCODE(0,0) == 0. We should probably have an additional
+ lp->status_p flag. */
+
+ return (lp->waitstatus.kind == TARGET_WAITKIND_IGNORE
+ && linux_nat_status_is_event (lp->status));
+}
+
/* Set alternative SIGTRAP-like events recognizer. If
breakpoint_inserted_here_p there then gdbarch_decr_pc_after_break will be
applied. */
@@ -2823,8 +2837,7 @@ count_events_callback (struct lwp_info *lp, void *data)
gdb_assert (count != NULL);
/* Count only resumed LWPs that have a SIGTRAP event pending. */
- if (lp->status != 0 && lp->resumed
- && linux_nat_status_is_event (lp->status))
+ if (lp->resumed && linux_nat_lp_status_is_event (lp))
(*count)++;
return 0;
@@ -2851,8 +2864,7 @@ select_event_lwp_callback (struct lwp_info *lp, void *data)
gdb_assert (selector != NULL);
/* Select only resumed LWPs that have a SIGTRAP event pending. */
- if (lp->status != 0 && lp->resumed
- && linux_nat_status_is_event (lp->status))
+ if (lp->resumed && linux_nat_lp_status_is_event (lp))
if ((*selector)-- == 0)
return 1;
@@ -2912,9 +2924,7 @@ cancel_breakpoints_callback (struct lwp_info *lp, void *data)
delete or disable the breakpoint, but the LWP will have already
tripped on it. */
- if (lp->waitstatus.kind == TARGET_WAITKIND_IGNORE
- && lp->status != 0
- && linux_nat_status_is_event (lp->status)
+ if (linux_nat_lp_status_is_event (lp)
&& cancel_breakpoint (lp))
/* Throw away the SIGTRAP. */
lp->status = 0;
@@ -3433,8 +3443,7 @@ retry:
always cancels breakpoint hits in all
threads. */
if (non_stop
- && lp->waitstatus.kind == TARGET_WAITKIND_IGNORE
- && linux_nat_status_is_event (lp->status)
+ && linux_nat_lp_status_is_event (lp)
&& cancel_breakpoint (lp))
{
/* Throw away the SIGTRAP. */