2012-01-24 Pedro Alves <pedro@codesourcery.com>

	* breakpoint.c (breakpoint_hit_catch_fork)
	(breakpoint_hit_catch_vfork, breakpoint_hit_catch_syscall)
	(breakpoint_hit_catch_exec): Make use of the `ws' argument.
	* infrun.c (inferior_has_forked, inferior_has_vforked)
	(inferior_has_execd, inferior_has_called_syscall): Delete.
	(handle_syscall_event): Get syscall_number from the execution
	control state's wait status.
	(wait_for_inferior): Don't clear syscall_number.

3 files changed, 31 insertions, 84 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 2a84aa4..490a662 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,14 @@
+2012-01-24  Pedro Alves  <pedro@codesourcery.com>
+
+	* breakpoint.c (breakpoint_hit_catch_fork)
+	(breakpoint_hit_catch_vfork, breakpoint_hit_catch_syscall)
+	(breakpoint_hit_catch_exec): Make use of the `ws' argument.
+	* infrun.c (inferior_has_forked, inferior_has_vforked)
+	(inferior_has_execd, inferior_has_called_syscall): Delete.
+	(handle_syscall_event): Get syscall_number from the execution
+	control state's wait status.
+	(wait_for_inferior): Don't clear syscall_number.
+
 2012-01-24  Pedro Alves  <palves@redhat.com>
 
 	* breakpoint.c (bpstat_check_location, bpstat_stop_status,
diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c
index 6181c49..cf81498 100644
--- a/gdb/breakpoint.c
+++ b/gdb/breakpoint.c
@@ -6232,7 +6232,11 @@ breakpoint_hit_catch_fork (const struct bp_location *bl,
 {
   struct fork_catchpoint *c = (struct fork_catchpoint *) bl->owner;
 
-  return inferior_has_forked (inferior_ptid, &c->forked_inferior_pid);
+  if (ws->kind != TARGET_WAITKIND_FORKED)
+    return 0;
+
+  c->forked_inferior_pid = ws->value.related_pid;
+  return 1;
 }
 
 /* Implement the "print_it" breakpoint_ops method for fork
@@ -6342,7 +6346,11 @@ breakpoint_hit_catch_vfork (const struct bp_location *bl,
 {
   struct fork_catchpoint *c = (struct fork_catchpoint *) bl->owner;
 
-  return inferior_has_vforked (inferior_ptid, &c->forked_inferior_pid);
+  if (ws->kind != TARGET_WAITKIND_VFORKED)
+    return 0;
+
+  c->forked_inferior_pid = ws->value.related_pid;
+  return 1;
 }
 
 /* Implement the "print_it" breakpoint_ops method for vfork
@@ -6552,9 +6560,12 @@ breakpoint_hit_catch_syscall (const struct bp_location *bl,
   const struct syscall_catchpoint *c
     = (const struct syscall_catchpoint *) bl->owner;
 
-  if (!inferior_has_called_syscall (inferior_ptid, &syscall_number))
+  if (ws->kind != TARGET_WAITKIND_SYSCALL_ENTRY
+      && ws->kind != TARGET_WAITKIND_SYSCALL_RETURN)
     return 0;
 
+  syscall_number = ws->value.syscall_number;
+
   /* Now, checking if the syscall is the same.  */
   if (c->syscalls_to_be_caught)
     {
@@ -6860,7 +6871,11 @@ breakpoint_hit_catch_exec (const struct bp_location *bl,
 {
   struct exec_catchpoint *c = (struct exec_catchpoint *) bl->owner;
 
-  return inferior_has_execd (inferior_ptid, &c->exec_pathname);
+  if (ws->kind != TARGET_WAITKIND_EXECD)
+    return 0;
+
+  c->exec_pathname = xstrdup (ws->value.execd_pathname);
+  return 1;
 }
 
 static enum print_stop_action
diff --git a/gdb/infrun.c b/gdb/infrun.c
index 23a4bba..de4a8b7 100644
--- a/gdb/infrun.c
+++ b/gdb/infrun.c
@@ -2701,10 +2701,6 @@ wait_for_inferior (void)
 	 state.  */
       old_chain = make_cleanup (finish_thread_state_cleanup, &minus_one_ptid);
 
-      if (ecs->ws.kind == TARGET_WAITKIND_SYSCALL_ENTRY
-          || ecs->ws.kind == TARGET_WAITKIND_SYSCALL_RETURN)
-        ecs->ws.value.syscall_number = UNKNOWN_SYSCALL;
-
       /* Now figure out what to do with the result of the result.  */
       handle_inferior_event (ecs);
 
@@ -3072,11 +3068,9 @@ handle_syscall_event (struct execution_control_state *ecs)
 
   regcache = get_thread_regcache (ecs->ptid);
   gdbarch = get_regcache_arch (regcache);
-  syscall_number = gdbarch_get_syscall_number (gdbarch, ecs->ptid);
+  syscall_number = ecs->ws.value.syscall_number;
   stop_pc = regcache_read_pc (regcache);
 
-  target_last_waitstatus.value.syscall_number = syscall_number;
-
   if (catch_syscall_enabled () > 0
       && catching_syscall_number (syscall_number) > 0)
     {
@@ -6863,79 +6857,6 @@ discard_infcall_control_state (struct infcall_control_state *inf_status)
 }
 
 int
-inferior_has_forked (ptid_t pid, ptid_t *child_pid)
-{
-  struct target_waitstatus last;
-  ptid_t last_ptid;
-
-  get_last_target_status (&last_ptid, &last);
-
-  if (last.kind != TARGET_WAITKIND_FORKED)
-    return 0;
-
-  if (!ptid_equal (last_ptid, pid))
-    return 0;
-
-  *child_pid = last.value.related_pid;
-  return 1;
-}
-
-int
-inferior_has_vforked (ptid_t pid, ptid_t *child_pid)
-{
-  struct target_waitstatus last;
-  ptid_t last_ptid;
-
-  get_last_target_status (&last_ptid, &last);
-
-  if (last.kind != TARGET_WAITKIND_VFORKED)
-    return 0;
-
-  if (!ptid_equal (last_ptid, pid))
-    return 0;
-
-  *child_pid = last.value.related_pid;
-  return 1;
-}
-
-int
-inferior_has_execd (ptid_t pid, char **execd_pathname)
-{
-  struct target_waitstatus last;
-  ptid_t last_ptid;
-
-  get_last_target_status (&last_ptid, &last);
-
-  if (last.kind != TARGET_WAITKIND_EXECD)
-    return 0;
-
-  if (!ptid_equal (last_ptid, pid))
-    return 0;
-
-  *execd_pathname = xstrdup (last.value.execd_pathname);
-  return 1;
-}
-
-int
-inferior_has_called_syscall (ptid_t pid, int *syscall_number)
-{
-  struct target_waitstatus last;
-  ptid_t last_ptid;
-
-  get_last_target_status (&last_ptid, &last);
-
-  if (last.kind != TARGET_WAITKIND_SYSCALL_ENTRY &&
-      last.kind != TARGET_WAITKIND_SYSCALL_RETURN)
-    return 0;
-
-  if (!ptid_equal (last_ptid, pid))
-    return 0;
-
-  *syscall_number = last.value.syscall_number;
-  return 1;
-}
-
-int
 ptid_match (ptid_t ptid, ptid_t filter)
 {
   if (ptid_equal (filter, minus_one_ptid))