#ifndef __ARM_FEATURES_H__
#define __ARM_FEATURES_H__
-#if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \
- || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \
- || defined(__ARM_ARCH_7EM__)
+/* note: features only available since:
+ * __ARM_ARCH gcc 4.8/clang 3.2
+ * ARMv8 support gcc 4.8/clang 3.4
+ * ARM64 support gcc 4.8/clang 3.5
+ */
+#if defined(__aarch64__)
+
+#elif (defined(__ARM_ARCH) && __ARM_ARCH >= 8)
+
+#define HAVE_ARMV8
#define HAVE_ARMV7
#define HAVE_ARMV6
#define HAVE_ARMV5
-#elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \
- || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) \
- || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__)
+#elif (defined(__ARM_ARCH) && __ARM_ARCH >= 7) \
+ || defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \
+ || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \
+ || defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_7S__)
+#define HAVE_ARMV7
#define HAVE_ARMV6
#define HAVE_ARMV5
+#elif (defined(__ARM_ARCH) && __ARM_ARCH >= 6) \
+ || defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \
+ || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) \
+ || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) \
+ || defined(__ARM_ARCH_6M__)
+
+#define HAVE_ARMV6
+#define HAVE_ARMV5
+#define HAVE_PRE_ARMV7
+
#elif defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5E__) \
|| defined(__ARM_ARCH_5T__) || defined(__ARM_ARCH_5TE__) || defined(__ARM_ARCH_5TEJ__)
#define HAVE_ARMV5
+#define HAVE_PRE_ARMV7
+
+#elif defined(__arm__)
+
+#define HAVE_PRE_ARMV7
#endif
.type name, %function; \
name
+#define EXTRA_UNSAVED_REGS
+
#else
#define ESYM(name) _##name
name: \
ESYM(name)
+// r7 is preserved, but add it for EABI alignment..
+#define EXTRA_UNSAVED_REGS r7, r9,
+
#endif
#endif /* __ARM_FEATURES_H__ */