gdb/

2008-10-23  Pedro Alves  <pedro@codesourcery.com>

	* defs.h: Mention ptid_is_pid.
	* inferior.h (ptid_is_pid): Declare.
	* gdbthread.h (struct thread_info) <stop_requested>: New field.
	(set_stop_requested): Declare.
	* infcmd.c (interrupt_target_1): Call set_stop_requested.
	* infrun.c (clear_proceed_status): Clear stop_requested.
	(infrun_thread_stop_requested_callback,
	infrun_thread_stop_requested): New.
	(handle_inferior_event): If a TARGET_SIGNAL_TRAP is reported on a
	thread that had an explicit stop request, pretend we got a
	TARGET_SIGNAL_0.  Always stop if the thread had an explicit stop
	request.
	(print_stop_reason): In the SIGNAL_RECEIVED case, if we're not
	outputting to MI, and we got a TARGET_SIGNAL_0, print "# Stopped",
	instead of mentioning signal 0.
	(ptid_is_pid): New.
	* thread.c (set_stop_requested): New.

	* linux-nat.c (queued_waitpid): Rename to ...
	(queued_waitpid_1): ... this.  Add `peek' argument.  Handle it.
	(queued_waitpid): New, as wrapper to queued_waitpid_1.
	(push_waitpid): Push the SIGTRAP to the local event queue, to the
	kernel's.
	(send_sigint_callback): Delete.
	(linux_nat_stop_lwp): New.
	(linux_nat_stop): Use it.

gdb/doc/
2008-10-23  Pedro Alves  <pedro@codesourcery.com>

	* observer.texi (thread_stop_requested): New.

gdb/testsuite/
2008-10-23  Pedro Alves  <pedro@codesourcery.com>

	* lib/mi-support.exp (mi_expect_interrupt): Expect signal 0
	instead of SIGINT.

1 files changed, 10 insertions, 0 deletions

diff --git a/gdb/gdbthread.h b/gdb/gdbthread.h
index 0fb53fbbc4a..55c848df2a4 100644
--- a/gdb/gdbthread.h
+++ b/gdb/gdbthread.h
@@ -168,6 +168,9 @@ struct thread_info
      at.  */
   bpstat stop_bpstat;
 
+  /* True if this thread has been explicitly requested to stop.  */
+  int stop_requested;
+
   /* Private data used by the target vector implementation.  */
   struct private_thread_info *private;
 };
@@ -239,6 +242,13 @@ extern void switch_to_thread (ptid_t ptid);
    If PIDGET (PTID) is -1, marks all threads.  */
 extern void set_running (ptid_t ptid, int running);
 
+/* Marks or clears thread(s) PTID as having been requested to stop.
+   If PTID is MINUS_ONE_PTID, applies to all threads.  If
+   ptid_is_pid(PTID) is true, applies to all threads of the process
+   pointed at by PTID.  If STOP, then the THREAD_STOP_REQUESTED
+   observer is called with PTID as argument.  */
+extern void set_stop_requested (ptid_t ptid, int stop);
+
 /* NOTE: Since the thread state is not a boolean, most times, you do
    not want to check it with negation.  If you really want to check if
    the thread is stopped,