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2008-02-29 Samuel Thibault <samuel.thibault@ens-lyon.org
* sysdeps/l4/hurd/i386/pt-setup.c (stack_setup): Align stack on 0x10
for MMX operations.
* sysdeps/mach/hurd/i386/pt-setup.c (stack_setup): Likewise.
Index: sysdeps/l4/hurd/i386/pt-setup.c
===================================================================
RCS file: /cvsroot/hurd/hurd/libpthread/sysdeps/l4/hurd/i386/pt-setup.c,v
retrieving revision 1.1
diff -u -p -r1.1 pt-setup.c
--- hurd/libpthread/sysdeps/l4/hurd/i386/pt-setup.c 10 Oct 2002 23:05:05 -0000 1.1
+++ hurd/libpthread/sysdeps/l4/hurd/i386/pt-setup.c 29 Feb 2008 01:30:29 -0000
@@ -47,8 +47,10 @@ stack_setup (struct __pthread *thread,
if (start_routine)
{
/* Set up call frame. */
- *--top = (L4_Word_t) arg; /* Argument to START_ROUTINE. */
- *--top = (L4_Word_t) start_routine;
+ top -= 2*sizeof(L4_Word_t);
+ top = (unsigned long) top & ~0xf;
+ top[1] = (L4_Word_t) arg; /* Argument to START_ROUTINE. */
+ top[0] = (L4_Word_t) start_routine;
*--top = 0; /* Fake return address. */
}
Index: sysdeps/mach/hurd/i386/pt-setup.c
===================================================================
RCS file: /cvsroot/hurd/hurd/libpthread/sysdeps/mach/hurd/i386/pt-setup.c,v
retrieving revision 1.4
diff -u -p -r1.4 pt-setup.c
--- hurd/libpthread/sysdeps/mach/hurd/i386/pt-setup.c 12 May 2005 20:55:37 -0000 1.4
+++ hurd/libpthread/sysdeps/mach/hurd/i386/pt-setup.c 29 Feb 2008 01:30:29 -0000
@@ -63,8 +63,10 @@ stack_setup (struct __pthread *thread,
if (start_routine)
{
/* And then the call frame. */
- *--top = (uintptr_t) arg; /* Argument to START_ROUTINE. */
- *--top = (uintptr_t) start_routine;
+ top -= 2*sizeof(uintptr_t);
+ top = (uintptr_t) top & ~0xf;
+ top[1] = (uintptr_t) arg; /* Argument to START_ROUTINE. */
+ top[0] = (uintptr_t) start_routine;
*--top = 0; /* Fake return address. */
}
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