[PATCH 2/6] Optimize i386 syscall inlining

[H.J. Lu]

On Fri, Aug 21, 2015 at 5:35 AM, Joseph Myers <joseph@codesourcery.com> wrote:
> You define INLINE_SYSCALL_ERROR_RETURN to ignore the specified return
> value.  There is nothing in the comments on the default version of that
> macro in sysdeps/unix/sysdep.h to say that it is OK to ignore the return
> value.  If the return value must always be -1, I think the macro should
> take one fewer argument rather than having specified semantics that the
> last argument must always be -1, or that the macro may return -1 and
> ignore the last argument.

__syscall_error is for tail call from system call error and it has been used
this way in glibc.  It is OK to tail call __syscall_error and ignore the user
provided return value for syscall error.  I can add a comment to i386
INLINE_SYSCALL_ERROR_RETURN.

-- 
H.J.