[PATCH] powerpc: Add missing CFI register information [BZ #23614]

[Gabriel F. T. Gomes]

On Thu, 06 Sep 2018, Tulio Magno Quites Machado Filho wrote:

>	[BZ #23614]
>	* sysdeps/powerpc/powerpc64/addmul_1.S (FUNC): Add CFI offset for
>	registers saved in the stack frame.
>	* sysdeps/powerpc/powerpc64/lshift.S (__mpn_lshift): Likewise.
>	* sysdeps/powerpc/powerpc64/mul_1.S (__mpn_mul_1): Likewise.

OK

>	* sysdeps/unix/sysv/linux/powerpc/powerpc64/brk.S (__brk): Likewise.
> (...)
>diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/brk.S b/sysdeps/unix/sysv/linux/powerpc/powerpc64/brk.S
>index c8cb7edf77..fa769add4d 100644
>--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/brk.S
>+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/brk.S
>@@ -29,6 +29,7 @@ ENTRY (__brk)
> 	CALL_MCOUNT 1
> 
> 	std	r3,-8(r1)
>+	cfi_offset(r3, -8)
> 	DO_CALL(SYS_ify(brk))
> 	ld	r6,-8(r1)
> 	ld	r5,.LC__curbrk@toc(r2)


As mentioned in https://sourceware.org/bugzilla/show_bug.cgi?id=23614#c1,
this is not needed.

Looks good to me with this hunk removed and ChangeLog updated.

Reviewed-by: Gabriel F. T. Gomes <gabriel@inconstante.eti.br>