Re: [PATCH]ppc64-implement-a-vdso-and-use-it-for-signal-trampoline gas workaround

[Benjamin Herrenschmidt]

On Sat, 2005-03-05 at 17:33 +0000, Linux Kernel Mailing List wrote:
> ChangeSet 1.2212, 2005/03/05 09:33:46-08:00, akpm@xxxxxxxx
> 
> 	[PATCH] ppc64-implement-a-vdso-and-use-it-for-signal-trampoline gas workaround
> 	
> 	I cannot find a version of binutils which doesn't either do
> 	
> 	arch/ppc64/kernel/vdso32/gettimeofday.S: Assembler messages:
> 	arch/ppc64/kernel/vdso32/gettimeofday.S:33: Error: syntax error; found `@' but expected `,'

Ugh... Do that still happen once you finally get it to build with a 32
bits compiler and not a 64 bits one ? The @local is actually needed for
the 32 bits build.

> 	or
> 	
> 	arch/ppc64/kernel/vdso32/gettimeofday.S: Assembler messages:
> 	arch/ppc64/kernel/vdso32/gettimeofday.S:33: Internal error, aborting at ../../gas/config/tc-ppc.c line 2658 in md_assemble
> 	
> 	
> 	Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
> 	Signed-off-by: Linus Torvalds <torvalds@xxxxxxxx>
> 
> 
> 
>  datapage.S     |    2 +-
>  gettimeofday.S |    4 ++--
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> 
> diff -Nru a/arch/ppc64/kernel/vdso32/datapage.S b/arch/ppc64/kernel/vdso32/datapage.S
> --- a/arch/ppc64/kernel/vdso32/datapage.S	2005-03-05 10:30:16 -08:00
> +++ b/arch/ppc64/kernel/vdso32/datapage.S	2005-03-05 10:30:16 -08:00
> @@ -56,7 +56,7 @@
>    .cfi_register lr,r12
>  
>  	mr	r4,r3
> -	bl	__get_datapage@local
> +	bl	__get_datapage
>  	mtlr	r12
>  	addi	r3,r3,CFG_SYSCALL_MAP32
>  	cmpli	cr0,r4,0
> diff -Nru a/arch/ppc64/kernel/vdso32/gettimeofday.S b/arch/ppc64/kernel/vdso32/gettimeofday.S
> --- a/arch/ppc64/kernel/vdso32/gettimeofday.S	2005-03-05 10:30:16 -08:00
> +++ b/arch/ppc64/kernel/vdso32/gettimeofday.S	2005-03-05 10:30:16 -08:00
> @@ -30,9 +30,9 @@
>  
>  	mr	r10,r3			/* r10 saves tv */
>  	mr	r11,r4			/* r11 saves tz */
> -	bl	__get_datapage@local	/* get data page */
> +	bl	__get_datapage		/* get data page */
>  	mr	r9, r3			/* datapage ptr in r9 */
> -	bl	__do_get_xsec@local	/* get xsec from tb & kernel */
> +	bl	__do_get_xsec		/* get xsec from tb & kernel */
>  	bne-	2f			/* out of line -> do syscall */
>  
>  	/* seconds are xsec >> 20 */
> -
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-- 
Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>

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