diff options
Diffstat (limited to 'gdb/darwin-nat.c')
| -rw-r--r-- | gdb/darwin-nat.c | 30 |
1 files changed, 28 insertions, 2 deletions
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; } |