aboutsummaryrefslogtreecommitdiff
path: root/gdb/win32-nat.c
diff options
context:
space:
mode:
Diffstat (limited to 'gdb/win32-nat.c')
-rw-r--r--gdb/win32-nat.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/gdb/win32-nat.c b/gdb/win32-nat.c
index c28e26a..c37c1a8 100644
--- a/gdb/win32-nat.c
+++ b/gdb/win32-nat.c
@@ -338,7 +338,8 @@ do_child_fetch_inferior_registers (int r)
long l;
if (!current_thread)
- return;
+ return; /* Windows sometimes uses a non-existent thread id in its
+ events */
if (current_thread->reload_context)
{
@@ -382,6 +383,8 @@ static void
child_fetch_inferior_registers (int r)
{
current_thread = thread_rec (PIDGET (inferior_ptid), TRUE);
+ /* Check if current_thread exists. Windows sometimes uses a non-existent
+ thread id in its events */
if (current_thread)
do_child_fetch_inferior_registers (r);
}
@@ -390,7 +393,7 @@ static void
do_child_store_inferior_registers (int r)
{
if (!current_thread)
- /* nothing to do */;
+ /* Windows sometimes uses a non-existent thread id in its events */;
else if (r >= 0)
regcache_collect (r, ((char *) &current_thread->context) + mappings[r]);
else
@@ -405,6 +408,8 @@ static void
child_store_inferior_registers (int r)
{
current_thread = thread_rec (PIDGET (inferior_ptid), TRUE);
+ /* Check if current_thread exists. Windows sometimes uses a non-existent
+ thread id in its events */
if (current_thread)
do_child_store_inferior_registers (r);
}
@@ -1207,6 +1212,8 @@ child_continue (DWORD continue_status, int id)
return res;
}
+/* Called in pathological case where Windows fails to send a
+ CREATE_PROCESS_DEBUG_EVENT after an attach. */
DWORD
fake_create_process ()
{
@@ -1253,6 +1260,9 @@ get_child_debug_event (int pid, struct target_waitstatus *ourstatus)
{
if (!saw_create && attach_flag)
{
+ /* Kludge around a Windows bug where first event is a create
+ thread event. Caused when attached process does not have
+ a main thread. */
retval = ourstatus->value.related_pid = fake_create_process ();
saw_create++;
}