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authorTorvald Riegel <triegel@redhat.com>2014-10-18 01:02:59 +0200
committerTorvald Riegel <triegel@redhat.com>2014-11-20 11:57:38 +0100
commit1ea339b69725cb2f30b5a84cb7ca96111c9a637b (patch)
tree130609da9190b04afb366f3a506d3415ea2f982f /sysdeps/i386
parentd960211ff52a6ab632eace2f905c4898f187df9e (diff)
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Add arch-specific configuration for C11 atomics support.
This sets __HAVE_64B_ATOMICS if provided.  It also sets
USE_ATOMIC_COMPILER_BUILTINS to true if the existing atomic ops use the
__atomic* builtins (aarch64, mips partially) or if this has been
tested (x86_64); otherwise, this is set to false so that C11 atomics will
be based on the existing atomic operations.
Diffstat (limited to 'sysdeps/i386')
-rw-r--r--sysdeps/i386/i486/bits/atomic.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/i386/i486/bits/atomic.h b/sysdeps/i386/i486/bits/atomic.h
index 76e0e8e2e3..739d3846f2 100644
--- a/sysdeps/i386/i486/bits/atomic.h
+++ b/sysdeps/i386/i486/bits/atomic.h
@@ -54,6 +54,9 @@ typedef uintmax_t uatomic_max_t;
 # endif
 #endif
 
+#define __HAVE_64B_ATOMICS 0
+#define USE_ATOMIC_COMPILER_BUILTINS 0
+
 
 #define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \
   __sync_val_compare_and_swap (mem, oldval, newval)