gdb/

	* gdbthread.h (struct thread_info): New `pending_follow' field.
	* thread.c (new_thread): New function.
	(add_thread_silent): Use it.
	* breakpoint.c (internal_breakpoint_number): New global, moved
	from inside...
	(create_internal_breakpoint): ... this.
	(clone_momentary_breakpoint): New.
	* breakpoint.h (clone_momentary_breakpoint): Declare.
	* infrun.c (nullify_last_target_wait_ptid): Move declaration
	higher.
	(pending_follow): Delete.
	(follow_fork): Handle pending follow fork event here.  Moved the
	preserving of thread stepping state here.
	(resume): Don't handle pending follow fork events here.  Only
	install the inferior's terminal modes if we're about to resume it.
	(proceed): Handle possible pending follow fork events here.
	(init_wait_for_inferior): No need to clear pending_follow anymore,
	it's gone.
	(handle_inferior_event): Adjust to per-thread `pending_follow'.
	Call `follow_fork' to handle following the fork.  If the
	follow-fork is cancelled, stop stepping.
	* linux-nat.c (linux_child_follow_fork): Adjust to per-thread
	`pending_follow' events.  Remove code that handled preserving the
	thread stepping state.
	* inf-ptrace.c (inf_ptrace_follow_fork): Ditto.
	* inf-ttrace.c (inf_ttrace_follow_fork): Ditto.

gdb/testsuite/
	* gdb.threads/fork-thread-pending.c: New.
	* gdb.threads/fork-thread-pending.exp: New.

1 files changed, 24 insertions, 13 deletions

diff --git a/gdb/thread.c b/gdb/thread.c
index 95f265a..7b2c6bb 100644
--- a/gdb/thread.c
+++ b/gdb/thread.c
@@ -141,6 +141,28 @@ init_thread_list (void)
   thread_list = NULL;
 }
 
+/* Allocate a new thread with target id PTID and add it to the thread
+   list.  */
+
+static struct thread_info *
+new_thread (ptid_t ptid)
+{
+  struct thread_info *tp;
+
+  tp = xcalloc (1, sizeof (*tp));
+
+  tp->ptid = ptid;
+  tp->num = ++highest_thread_num;
+  tp->next = thread_list;
+  thread_list = tp;
+
+  /* Nothing to follow yet.  */
+  tp->pending_follow.kind = TARGET_WAITKIND_SPURIOUS;
+  tp->state_ = THREAD_STOPPED;
+
+  return tp;
+}
+
 struct thread_info *
 add_thread_silent (ptid_t ptid)
 {
@@ -162,12 +184,7 @@ add_thread_silent (ptid_t ptid)
 
       if (ptid_equal (inferior_ptid, ptid))
 	{
-	  tp = xmalloc (sizeof (*tp));
-	  memset (tp, 0, sizeof (*tp));
-	  tp->ptid = minus_one_ptid;
-	  tp->num = ++highest_thread_num;
-	  tp->next = thread_list;
-	  thread_list = tp;
+	  tp = new_thread (ptid);
 
 	  /* Make switch_to_thread not read from the thread.  */
 	  tp->state_ = THREAD_EXITED;
@@ -191,13 +208,7 @@ add_thread_silent (ptid_t ptid)
 	delete_thread (ptid);
     }
 
-  tp = (struct thread_info *) xmalloc (sizeof (*tp));
-  memset (tp, 0, sizeof (*tp));
-  tp->ptid = ptid;
-  tp->num = ++highest_thread_num;
-  tp->next = thread_list;
-  thread_list = tp;
-
+  tp = new_thread (ptid);
   observer_notify_new_thread (tp);
 
   return tp;