[RFA] Resubmit process record and replay, 6/10

[Michael Snyder]

teawater wrote:
> 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.

Hui, a couple of suggestions:

1) Instead of "RECORD_IS_USED", how about "TARGET_IS_PROCESS_RECORD"?

2) Instead of "record_not_record_set", how about "record_skip_recording"?


Except for the names, I think this portion of the patch
is nicely self-contained.

> 
> 2008-11-16  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(-)
> 
> 
> ------------------------------------------------------------------------
> 
> --- 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)