gdb/

2009-11-20  Jan Kratochvil  <jan.kratochvil@redhat.com>
	    Pedro Alves  <pedro@codesourcery.com>

	Fix reordered watchpoints triggered in other threads during all-stop.

	* linux-nat.c (resume_callback, linux_nat_resume): Clear
	stopped_by_watchpoint.
	(save_sigtrap, linux_nat_stopped_by_watchpoint)
	(linux_nat_stopped_data_address): New.
	(stop_wait_callback, linux_nat_filter_event): Call save_sigtrap.
	(linux_nat_add_target): Install linux_nat_stopped_by_watchpoint
	and linux_nat_stopped_data_address.
	* linux-nat.h (struct lwp_info): New fields stopped_by_watchpoint,
	stopped_data_address_p and stopped_data_address.

gdb/testsuite/
2009-11-20  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* gdb.base/watchthreads-reorder.exp,
	gdb.base/watchthreads-reorder.c: New.

1 files changed, 12 insertions, 0 deletions

diff --git a/gdb/linux-nat.h b/gdb/linux-nat.h
index eae74f3afd..f2a74e8116 100644
--- a/gdb/linux-nat.h
+++ b/gdb/linux-nat.h
@@ -62,6 +62,18 @@ struct lwp_info
      be the address of a hardware watchpoint.  */
   struct siginfo siginfo;
 
+  /* STOPPED_BY_WATCHPOINT is non-zero if this LWP stopped with a data
+     watchpoint trap.  */
+  int stopped_by_watchpoint;
+
+  /* On architectures where it is possible to know the data address of
+     a triggered watchpoint, STOPPED_DATA_ADDRESS_P is non-zero, and
+     STOPPED_DATA_ADDRESS contains such data address.  Otherwise,
+     STOPPED_DATA_ADDRESS_P is false, and STOPPED_DATA_ADDRESS is
+     undefined.  Only valid if STOPPED_BY_WATCHPOINT is true.  */
+  int stopped_data_address_p;
+  CORE_ADDR stopped_data_address;
+
   /* Non-zero if we expect a duplicated SIGINT.  */
   int ignore_sigint;