[RFA] Process record and replay, 6/10

[RFA] Process record and replay, 6/10

[teawater]

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This patch to add some process record and replay to infrun.c.

Code for function "use_displaced_stepping" is make sure that displaced
stepping function will disable when process record and replay target
is opened.  Because process record and replay target doesn't support
displaced stepping function.

Code for function "proceed" is call function "record_not_record_set"
to set process record and replay target doesn't record the execute
log.  Because when GDB resume the inferior, process record and replay
target doesn't need to record the memory and register store operation
of GDB.

2008-11-06  Hui Zhu  <teawater@gmail.com>

	* infrun.c (use_displaced_stepping): Return false if process
	record and replay target is used.
	(proceed): Call function "record_not_record_set" if pocess
	record and replay target is used.

 infrun.c |   11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

[-- Attachment #2: infrun.txt --]
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--- a/infrun.c
+++ b/infrun.c
@@ -50,6 +50,8 @@
 #include "mi/mi-common.h"
 #include "event-top.h"
 
+#include "record.h"
+
 /* Prototypes for local functions */
 
 static void signals_info (char *, int);
@@ -602,7 +604,8 @@ use_displaced_stepping (struct gdbarch *
   return (((can_use_displaced_stepping == can_use_displaced_stepping_auto
 	    && non_stop)
 	   || can_use_displaced_stepping == can_use_displaced_stepping_on)
-	  && gdbarch_displaced_step_copy_insn_p (gdbarch));
+	  && gdbarch_displaced_step_copy_insn_p (gdbarch)
+	  && !RECORD_IS_USED);
 }
 
 /* Clean out any stray displaced stepping state.  */
@@ -1270,6 +1273,12 @@ proceed (CORE_ADDR addr, enum target_sig
   if (step < 0)
     stop_after_trap = 1;
 
+   /* When GDB resume the inferior, process record target doesn't need to
+      record the memory and register store operation of GDB. So set
+      record_not_record to 1. */
+  if (RECORD_IS_USED)
+    record_not_record_set ();
+
   if (addr == (CORE_ADDR) -1)
     {
       if (pc == stop_pc && breakpoint_here_p (pc) 

Re: [RFA] Process record and replay, 6/10

[Eli Zaretskii]

> Date: Thu, 6 Nov 2008 15:49:27 +0800
> From: teawater <teawater@gmail.com>
> 
> Code for function "use_displaced_stepping" is make sure that displaced
> stepping function will disable when process record and replay target
> is opened.  Because process record and replay target doesn't support
> displaced stepping function.

I think we should mention this incompatibility in the user manual.

Re: [RFA] Process record and replay, 6/10

[teawater]

OK. I will put it to gdb.texinfo.

On Fri, Nov 7, 2008 at 23:15, Eli Zaretskii <eliz@gnu.org> wrote:
>> Date: Thu, 6 Nov 2008 15:49:27 +0800
>> From: teawater <teawater@gmail.com>
>>
>> Code for function "use_displaced_stepping" is make sure that displaced
>> stepping function will disable when process record and replay target
>> is opened.  Because process record and replay target doesn't support
>> displaced stepping function.
>
> I think we should mention this incompatibility in the user manual.
>

Re: [RFA] Process record and replay, 6/10

[Eli Zaretskii]

> Date: Sat, 8 Nov 2008 14:31:48 +0800
> From: teawater <teawater@gmail.com>
> Cc: gdb-patches@sourceware.org
> 
> OK. I will put it to gdb.texinfo.

Thanks.