23 lines
1.0 KiB
Diff
23 lines
1.0 KiB
Diff
Subject: gc ppc64le force AO load
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From: Michel Normand <normand@linux.vnet.ibm.com>
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Force AO_load() to map to AO_load_acquire() for powerpc. The
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AO_load_acquire() function includes isync instructions that
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are critical for proper behavior on power system.
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Signed-Off-By: Will Schmidt <will_schmidt at vnet.ibm.com>
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Signed-off-by: Michel Normand <normand@linux.vnet.ibm.com>
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diff -up libatomic_ops-7.4.4/src/atomic_ops/sysdeps/gcc/powerpc.h.gc_ppc64le_force_AO_load libatomic_ops-7.4.4/src/atomic_ops/sysdeps/gcc/powerpc.h
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--- libatomic_ops-7.4.4/src/atomic_ops/sysdeps/gcc/powerpc.h.gc_ppc64le_force_AO_load 2016-05-24 15:01:55.000000000 -0500
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+++ libatomic_ops-7.4.4/src/atomic_ops/sysdeps/gcc/powerpc.h 2016-06-17 10:27:10.503593018 -0500
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@@ -29,6 +29,8 @@
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#include "../all_aligned_atomic_load_store.h"
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+#define AO_load(addr) AO_load_acquire(addr)
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+
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#include "../test_and_set_t_is_ao_t.h"
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/* There seems to be no byte equivalent of lwarx, so this */
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/* may really be what we want, at least in the 32-bit case. */
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