[patch] SPU gprof support

[Trevor_Smigiel@playstation.sony.com]

Hi Ken,

Yes, this patch is OK.

Trevor

* Ken Werner <ken@linux.vnet.ibm.com> [2009-11-25 16:50]:
> Hi,
> 
> This patch adds support for the GNU profiler on the SPU. The corresponding 
> newlib patches can be found at  
> http://sourceware.org/ml/newlib/2008/msg00652.html and 
> http://sourceware.org/ml/newlib/2009/msg00411.html.
> 
> Ken

> gcc/ChangeLog:
> 
> 2009-11-25  Ken Werner  <ken.werner@de.ibm.com>
> 
>         * config/spu/spu-elf.h (STARTFILE_SPEC): Add support for gprof
>         startup files.
>         * config/spu/spu-protos.h (spu_function_profiler): Add prototype.
>         * config/spu/spu.c (spu_function_profiler): New function.
>         * config/spu/spu.h (FUNCTION_PROFILER): Invoke
>         spu_function_profiler.
>         (NO_PROFILE_COUNTERS): Define.
>         (PROFILE_BEFORE_PROLOGUE): Likewise.
> 
> 
> Index: gcc/config/spu/spu-protos.h
> ===================================================================
> --- gcc/config/spu/spu-protos.h	(revision 154486)
> +++ gcc/config/spu/spu-protos.h	(working copy)
> @@ -85,6 +85,7 @@
>  extern void spu_expand_vector_init (rtx target, rtx vals);
>  extern void spu_init_expanders (void);
>  extern void spu_split_convert (rtx *);
> +extern void spu_function_profiler (FILE *, int);
>  
>  /* spu-c.c */
>  extern tree spu_resolve_overloaded_builtin (location_t, tree fndecl,
> Index: gcc/config/spu/spu.c
> ===================================================================
> --- gcc/config/spu/spu.c	(revision 154486)
> +++ gcc/config/spu/spu.c	(working copy)
> @@ -7074,4 +7074,11 @@
>      }
>  }
>  
> +void
> +spu_function_profiler (FILE * file, int labelno)
> +{
> +  fprintf (file, "# profile\n");
> +  fprintf (file, "brsl $75,  _mcount\n");
> +}
> +
>  #include "gt-spu.h"
> Index: gcc/config/spu/spu.h
> ===================================================================
> --- gcc/config/spu/spu.h	(revision 154486)
> +++ gcc/config/spu/spu.h	(working copy)
> @@ -393,10 +393,13 @@
>  
>  /* Profiling */
>  
> -/* Nothing, for now. */
>  #define FUNCTION_PROFILER(FILE, LABELNO)  \
> -   fprintf (FILE, "\t\n")
> +  spu_function_profiler ((FILE), (LABELNO));
>  
> +#define NO_PROFILE_COUNTERS 1
> +
> +#define PROFILE_BEFORE_PROLOGUE 1
> +
>  
>  /* Trampolines */
>  
> Index: gcc/config/spu/spu-elf.h
> ===================================================================
> --- gcc/config/spu/spu-elf.h	(revision 154486)
> +++ gcc/config/spu/spu-elf.h	(working copy)
> @@ -48,8 +48,9 @@
>     object constructed before entering `main'.  */
>  
>  #undef  STARTFILE_SPEC 
> -#define STARTFILE_SPEC "%{mstdmain: crt2.o%s} %{!mstdmain: crt1.o%s} \
> -			crti.o%s crtbegin.o%s"
> +#define STARTFILE_SPEC "%{mstdmain: %{pg|p:gcrt2.o%s;:crt2.o%s}}\
> +                        %{!mstdmain: %{pg|p:gcrt1.o%s;:crt1.o%s}}\
> +                        crti.o%s crtbegin.o%s"
>  
>  #undef  ENDFILE_SPEC
>  #define ENDFILE_SPEC   "crtend.o%s crtn.o%s"