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Re: [RFA] let record_resume fail immediately on error


> Hui, try returning signal zero.  GDB will just report that you
> stopped, without saying anything about a signal.
>
> Old trick of mine.  ;-)

Cool!  The signal 0 make the output like following:
The next instruction is syscall exit_group.  It will make the program
exit.  Do you want to stop the program?([y] or n)
Process record: inferior program stopped.

[process 25901] #1 stopped.
0xb7fe3405 in __kernel_vsyscall ()
(gdb) rc

Or:
Process record doesn't support instruction rdtsc.
Process record doesn't support instruction 0xf31 at address 0x8048391.
Process record: failed to record execution log.

[process 25947] #1 stopped.
main (argc=<value optimized out>, argv=<value optimized out>,
envp=<value optimized out>) at 2.c:16
16		asm ("rdtsc");

I make a new patch for it.  Please help me with it.

Thanks,
Hui

2009-10-16  Hui Zhu  <teawater@gmail.com>

	* record.c (record_resume_error): Deleted.
	(record_resume): Call record_message.
	(record_wait): Deleted record_resume_error.
	Set status when do_record_message need stop the inferior.
---
 record.c |   25 +++++++------------------
 1 file changed, 7 insertions(+), 18 deletions(-)

--- a/record.c
+++ b/record.c
@@ -643,7 +643,6 @@ record_close (int quitting)
 }

 static int record_resume_step = 0;
-static int record_resume_error;

 static void
 record_resume (struct target_ops *ops, ptid_t ptid, int step,
@@ -653,15 +652,11 @@ record_resume (struct target_ops *ops, p

   if (!RECORD_IS_REPLAY)
     {
-      if (do_record_message (get_current_regcache (), signal))
-        {
-          record_resume_error = 0;
-        }
-      else
-        {
-          record_resume_error = 1;
-          return;
-        }
+      struct record_message_args args;
+
+      args.regcache = get_current_regcache ();
+      args.signal = signal;
+      record_message (&args);
       record_beneath_to_resume (record_beneath_to_resume_ops, ptid, 1,
                                 signal);
     }
@@ -713,14 +708,6 @@ record_wait (struct target_ops *ops,

   if (!RECORD_IS_REPLAY)
     {
-      if (record_resume_error)
-	{
-	  /* If record_resume get error, return directly.  */
-	  status->kind = TARGET_WAITKIND_STOPPED;
-	  status->value.sig = TARGET_SIGNAL_ABRT;
-	  return inferior_ptid;
-	}
-
       if (record_resume_step)
 	{
 	  /* This is a single step.  */
@@ -766,6 +753,8 @@ record_wait (struct target_ops *ops,
 		      if (!do_record_message (get_current_regcache (),
 					      TARGET_SIGNAL_0))
 			{
+                          status->kind = TARGET_WAITKIND_STOPPED;
+                          status->value.sig = TARGET_SIGNAL_0;
                           break;
 			}
 		      record_beneath_to_resume (record_beneath_to_resume_ops,


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