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-rw-r--r--src/common/atomic.h4
-rw-r--r--src/common/cbasetypes.h12
2 files changed, 15 insertions, 1 deletions
diff --git a/src/common/atomic.h b/src/common/atomic.h
index c2227a9d4..8c01943e7 100644
--- a/src/common/atomic.h
+++ b/src/common/atomic.h
@@ -87,7 +87,9 @@ forceinline volatile int64 InterlockedExchange64(volatile int64 *target, int64 v
#elif defined(__GNUC__)
-#if !defined(__x86_64__) && !defined(__i386__)
+// The __sync functions are available on x86 or ARMv6+
+#if !defined(__x86_64__) && !defined(__i386__) \
+ && ( !defined(__ARM_ARCH_VERSION__) || __ARM_ARCH_VERSION__ < 6 )
#error Your Target Platfrom is not supported
#endif
diff --git a/src/common/cbasetypes.h b/src/common/cbasetypes.h
index 654334a9b..f44e80413 100644
--- a/src/common/cbasetypes.h
+++ b/src/common/cbasetypes.h
@@ -42,6 +42,18 @@
#define __DARWIN__
#endif
+// Standardize the ARM platform version, if available (the only values we're interested in right now are >= ARMv6)
+#if defined(__ARMV6__) || defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) \
+ || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) // gcc ARMv6
+#define __ARM_ARCH_VERSION__ 6
+#elif defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7S__) // gcc ARMv7
+#define __ARM_ARCH_VERSION__ 7
+#elif defined(_M_ARM) // MSVC
+#define __ARM_ARCH_VERSION__ _M_ARM
+#else
+#define __ARM_ARCH_VERSION__ 0
+#endif
+
// Necessary for __NetBSD_Version__ (defined as VVRR00PP00) on NetBSD
#ifdef __NETBSD__
#include <sys/param.h>