include/arm_features.h

   1 #ifndef __ARM_FEATURES_H__
   2 #define __ARM_FEATURES_H__
   3
   4 /* note: features only available since:
   5  * __ARM_ARCH     gcc 4.8/clang 3.2
   6  * ARMv8 support  gcc 4.8/clang 3.4
   7  * ARM64 support  gcc 4.8/clang 3.5
   8  */
   9
  10 #if defined(__aarch64__)
  11
  12 #elif (defined(__ARM_ARCH) && __ARM_ARCH >= 8)
  13
  14 #define HAVE_ARMV8
  15 #define HAVE_ARMV7
  16 #define HAVE_ARMV6
  17 #define HAVE_ARMV5
  18
  19 #elif (defined(__ARM_ARCH) && __ARM_ARCH >= 7) \
  20     || defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \
  21     || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \
  22     || defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_7S__)
  23
  24 #define HAVE_ARMV7
  25 #define HAVE_ARMV6
  26 #define HAVE_ARMV5
  27
  28 #elif (defined(__ARM_ARCH) && __ARM_ARCH >= 6) \
  29     || defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \
  30     || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) \
  31     || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) \
  32     || defined(__ARM_ARCH_6M__)
  33
  34 #define HAVE_ARMV6
  35 #define HAVE_ARMV5
  36 #define HAVE_PRE_ARMV7
  37
  38 #elif defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5E__) \
  39    || defined(__ARM_ARCH_5T__) || defined(__ARM_ARCH_5TE__) || defined(__ARM_ARCH_5TEJ__)
  40
  41 #define HAVE_ARMV5
  42 #define HAVE_PRE_ARMV7
  43
  44 #elif defined(__arm__)
  45
  46 #define HAVE_PRE_ARMV7
  47
  48 #endif
  49
  50 /* gcc defines __ARM_NEON__ consistently for 32bit, but apple clang defines it for 64bit also... */
  51 #if defined(HAVE_ARMV7) && defined(__ARM_NEON__)
  52 #define HAVE_NEON32
  53 #endif
  54
  55 /* global function/external symbol */
  56 #ifndef __MACH__
  57 #define ESYM(name) name
  58
  59 #define FUNCTION(name) \
  60   .globl name; \
  61   .type name, %function; \
  62   name
  63
  64 #define EXTRA_UNSAVED_REGS
  65
  66 #else
  67 #define ESYM(name) _##name
  68
  69 #define FUNCTION(name) \
  70   .globl ESYM(name); \
  71   name: \
  72   ESYM(name)
  73
  74 // r7 is preserved, but add it for EABI alignment..
  75 #define EXTRA_UNSAVED_REGS r7, r9,
  76
  77 #endif
  78
  79 #if defined(__MACH__) || defined(__PIC__)
  80 #define TEXRELS_FORBIDDEN
  81 #endif
  82
  83 #endif /* __ARM_FEATURES_H__ */