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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/aarch64/bits
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/aarch64/bits')
-rw-r--r--sysdeps/aarch64/bits/atomic.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/sysdeps/aarch64/bits/atomic.h b/sysdeps/aarch64/bits/atomic.h
index 456e2ecdff..a8d3ae721f 100644
--- a/sysdeps/aarch64/bits/atomic.h
+++ b/sysdeps/aarch64/bits/atomic.h
@@ -36,6 +36,8 @@ typedef uintptr_t uatomicptr_t;
 typedef intmax_t atomic_max_t;
 typedef uintmax_t uatomic_max_t;
 
+#define __HAVE_64B_ATOMICS 1
+#define USE_ATOMIC_COMPILER_BUILTINS 1
 
 /* Compare and exchange.
    For all "bool" routines, we return FALSE if exchange succesful.  */