[PATCH] or1k: Correct longjmp return value
Corinna Vinschen
vinschen@redhat.com
Thu Jun 27 07:10:00 GMT 2019
On Jun 26 17:44, Martin Erik Werner wrote:
> Invert equality check instruction to correct the return value handling
> in longjmp.
>
> The return value should be the value of the second argument to longjmp,
> unless the argument value was 0 in which case it should be 1.
>
> Previously, longjmp would set return value 1 if the second argument was
> non-zero, and 0 if it was 0, which was incorrect.
> ---
> newlib/libc/machine/or1k/setjmp.S | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/newlib/libc/machine/or1k/setjmp.S b/newlib/libc/machine/or1k/setjmp.S
> index 5c023278d..0b93a0342 100644
> --- a/newlib/libc/machine/or1k/setjmp.S
> +++ b/newlib/libc/machine/or1k/setjmp.S
> @@ -70,7 +70,7 @@ longjmp:
> /* If the second argument to longjmp is zero, set return address to 1,
> otherwise set it to the value of the second argument */
> l.addi r11, r0, 1
> - l.sfne r4, r0
> + l.sfeq r4, r0
> l.bf 1f
> l.nop
> l.addi r11, r4, 0
> --
> 2.11.0
Pushed.
Thanks,
Corinna
--
Corinna Vinschen
Cygwin Maintainer
Red Hat
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