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-rw-r--r--gdb/ChangeLog5
-rw-r--r--gdb/darwin-nat.c30
2 files changed, 33 insertions, 2 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 64d2d5b..7473b08 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
2013-05-06 Joel Brobecker <brobecker@adacore.com>
+ * darwin-nat.c (darwin_setup_fake_stop_event): New function.
+ (darwin_attach): Adjust using darwin_setup_fake_stop_event.
+
+2013-05-06 Joel Brobecker <brobecker@adacore.com>
+
* darwin-nat.c: Replace all "%x" instances in format strings
into "0x%x" throughout.
diff --git a/gdb/darwin-nat.c b/gdb/darwin-nat.c
index 6dedc40..acdbf36 100644
--- a/gdb/darwin-nat.c
+++ b/gdb/darwin-nat.c
@@ -1586,6 +1586,32 @@ darwin_create_inferior (struct target_ops *ops, char *exec_file,
}
+/* Set things up such that the next call to darwin_wait will immediately
+ return a fake stop event for inferior INF.
+
+ This assumes that the inferior's thread list has been initialized,
+ as it will suspend the inferior's first thread. */
+
+static void
+darwin_setup_fake_stop_event (struct inferior *inf)
+{
+ darwin_thread_t *thread;
+ kern_return_t kret;
+
+ gdb_assert (darwin_inf_fake_stop == NULL);
+ darwin_inf_fake_stop = inf;
+
+ /* When detecting a fake pending stop event, darwin_wait returns
+ an event saying that the first thread is in a DARWIN_STOPPED
+ state. To make that accurate, we need to suspend that thread
+ as well. Otherwise, we'll try resuming it when resuming the
+ inferior, and get a warning because the thread's suspend count
+ is already zero, making the resume request useless. */
+ thread = VEC_index (darwin_thread_t, inf->private->threads, 0);
+ kret = thread_suspend (thread->gdb_port);
+ MACH_CHECK_ERROR (kret);
+}
+
/* Attach to process PID, then initialize for debugging it
and wait for the trace-trap that results from attaching. */
static void
@@ -1637,8 +1663,8 @@ darwin_attach (struct target_ops *ops, char *args, int from_tty)
darwin_check_osabi (inf->private, ptid_get_tid (inferior_ptid));
- gdb_assert (darwin_inf_fake_stop == NULL);
- darwin_inf_fake_stop = inf;
+ darwin_setup_fake_stop_event (inf);
+
inf->private->no_ptrace = 1;
}