Re: [PATCH] x86: Clear DF before calling signal handler

H. Peter Anvin
2008-03-05T18:22:17Z

Aurelien Jarno wrote:
> The Linux kernel currently does not clear the direction flag before
> calling a signal handler, whereas the x86/x86-64 ABI requires that.
> This become a real problem with gcc version 4.3, which assumes that
> the direction flag is correctly cleared at the entry of a function.
>
> This patches changes the setup_frame() functions to clear the
> direction before entering the signal handler.
>
> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

Acked-by: H. Peter Anvin <hpa@zytor.com>