[PATCH] i386: Assembly Implementation cleanup

[H.J. Lu]

On Wed, Aug 12, 2015 at 8:01 AM, Florian Weimer <fweimer@redhat.com> wrote:
> On 08/12/2015 02:44 PM, H.J. Lu wrote:
>
>> Is there a way to truly inline syscall with 6 arguments, not by calling
>> __libc_do_syscall?
>
> Yes, newer GCC versions are able to spill %ebx just by writing
> appropriate constraints.
>
> Test case:
>
> int
> doit(int v)
> {
>   int r;
>   __asm__ ("MAGIC"
>            : "=r" (r)
>            : "b" (v));
>   return r;
> }
>
> Compile with “-m32 -fpic -O2”.
>

I am working on it now.

-- 
H.J.