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Re: [PATCH] Copy x86_64 _mcount.op from _mcount.o


On Thu, Mar 3, 2016 at 5:45 AM, H.J. Lu <hongjiu.lu@intel.com> wrote:
> No need to compile x86_64 _mcount.S with -pg.  We can just copy the
> normal static object.
>
>         * gmon/Makefile (noprof): Add $(sysdep_noprof).
>         * sysdeps/x86_64/Makefile (sysdep_noprof): Add _mcount.
> ---
>  gmon/Makefile           | 2 +-
>  sysdeps/x86_64/Makefile | 1 +
>  2 files changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/gmon/Makefile b/gmon/Makefile
> index abb96d7..c7c9e58 100644
> --- a/gmon/Makefile
> +++ b/gmon/Makefile
> @@ -45,7 +45,7 @@ include ../Rules
>  # On systems where `profil' is not a system call, the same
>  # problem exists for the internal functions in profil.c.
>
> -noprof := mcount
> +noprof := mcount $(sysdep_noprof)
>  ifeq (,$(filter profil,$(unix-syscalls)))
>  noprof += profil sprofil
>  endif
> diff --git a/sysdeps/x86_64/Makefile b/sysdeps/x86_64/Makefile
> index 67ed5ba..9fcadd8 100644
> --- a/sysdeps/x86_64/Makefile
> +++ b/sysdeps/x86_64/Makefile
> @@ -7,6 +7,7 @@ endif
>
>  ifeq ($(subdir),gmon)
>  sysdep_routines += _mcount
> +sysdep_noprof += _mcount
>  endif
>
>  ifeq ($(subdir),malloc)
> --
> 2.5.0
>

There is no difference in gmon/_mcount.op before and after
my patch.  I will check it in shortly.

-- 
H.J.


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