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Re: RELEASE BLOCKER: Linux doesn't follow x86/x86-64 ABI wrt direction flag


H.J. Lu wrote:
On Thu, Mar 6, 2008 at 8:23 AM, Jakub Jelinek <jakub@redhat.com> wrote:
On Thu, Mar 06, 2008 at 07:50:12AM -0800, H. Peter Anvin wrote:
 > H.J. Lu wrote:
 > >I agree with it. There is no  right or wrong here Let's start from
 > >scratch and figure out
 > >what is the best way to handle this, assuming we are defining a new psABI.

 BTW, just tested icc and icc doesn't generate cld either (so it matches the
 new gcc behavior).
 char buf1[32], buf2[32];
 void bar (void);
 void foo (void)
 {
  __builtin_memset (buf1, 0, 32);
  bar ();
  __builtin_memset (buf2, 0, 32);
 }


Icc follows the psABI. If we are saying icc/gcc 4.3 need a fix, we'd better define a new psABI first.


Not a fix, an (optional) workaround for a system bug.


-hpa


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