Attachment 894543 Details for Bug 1096574 – gc-ppc64le_force_AO_load.patch

[patch] gc-ppc64le_force_AO_load.patch

gc-ppc64le_force_AO_load.patch (text/plain), 1.02 KB, created by Michel Normand on 2014-05-12 04:24:57 UTC

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Creator: Michel Normand

Created: 2014-05-12 04:24:57 UTC

Size: 1.02 KB

patch

obsolete

>Subject: gc ppc64le force AO load
>From: Michel Normand <normand@linux.vnet.ibm.com>
>
>Force AO_load() to map to AO_load_acquire() for powerpc.  The
>AO_load_acquire() function includes isync instructions that
>are critical for proper behavior on power system.
>
>Signed-Off-By: Will Schmidt <will_schmidt at vnet.ibm.com>
>Signed-off-by: Michel Normand <normand@linux.vnet.ibm.com>
>---
> libatomic_ops/src/atomic_ops/sysdeps/gcc/powerpc.h |    2 ++
> 1 file changed, 2 insertions(+)
>
>Index: gc-7.2/libatomic_ops/src/atomic_ops/sysdeps/gcc/powerpc.h
>===================================================================
>--- gc-7.2.orig/libatomic_ops/src/atomic_ops/sysdeps/gcc/powerpc.h
>+++ gc-7.2/libatomic_ops/src/atomic_ops/sysdeps/gcc/powerpc.h
>@@ -32,6 +32,8 @@
> 
> #include "../all_aligned_atomic_load_store.h"
> 
>+#define AO_load(addr) AO_load_acquire(addr)
>+
> #include "../test_and_set_t_is_ao_t.h"
>         /* There seems to be no byte equivalent of lwarx, so this       */
>         /* may really be what we want, at least in the 32-bit case.     */

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Attachments on bug 1096574: 894543