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_ARMV5E
  18 #define HAVE_ARMV5
  19
  20 #elif (defined(__ARM_ARCH) && __ARM_ARCH >= 7) \
  21     || defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \
  22     || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \
  23     || defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_7S__)
  24
  25 #define HAVE_ARMV7
  26 #define HAVE_ARMV6
  27 #define HAVE_ARMV5E
  28 #define HAVE_ARMV5
  29
  30 #elif (defined(__ARM_ARCH) && __ARM_ARCH >= 6) \
  31     || defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \
  32     || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) \
  33     || defined(__ARM_ARCH_6ZK__) || defined(__ARM_ARCH_6T2__) \
  34     || defined(__ARM_ARCH_6M__)
  35
  36 #define HAVE_ARMV6
  37 #define HAVE_ARMV5E
  38 #define HAVE_ARMV5
  39 #define HAVE_PRE_ARMV7
  40
  41 #elif defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) || defined(__ARM_ARCH_5TEJ__)
  42
  43 #define HAVE_ARMV5E
  44 #define HAVE_ARMV5
  45 #define HAVE_PRE_ARMV7
  46
  47 #elif defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__)
  48
  49 #define HAVE_ARMV5
  50 #define HAVE_PRE_ARMV7
  51
  52 #elif defined(__arm__)
  53
  54 #define HAVE_PRE_ARMV7
  55
  56 #endif
  57
  58 /* gcc defines __ARM_NEON__ consistently for 32bit, but apple clang defines it for 64bit also... */
  59 #if defined(HAVE_ARMV7) && defined(__ARM_NEON__)
  60 #define HAVE_NEON32
  61 #endif
  62
  63 #if defined(__APPLE__) && defined(__aarch64__)
  64 #define ASM_SEPARATOR %%
  65 #else
  66 #define ASM_SEPARATOR ;
  67 #endif
  68
  69 /* global function/external symbol */
  70 #ifndef __APPLE__
  71 #define ESYM(name) name
  72
  73 #define FUNCTION(name) \
  74   .globl name; \
  75   .type name, %function; \
  76   name
  77
  78 #define ESIZE(name_, size_) \
  79   .size name_, size_
  80
  81 #define EOBJECT(name_) \
  82   .type name_, %object
  83
  84 #define EXTRA_UNSAVED_REGS
  85
  86 #else
  87 #define ESYM(name) _##name
  88
  89 #define FUNCTION(name) \
  90   name: ASM_SEPARATOR \
  91   .globl ESYM(name) ASM_SEPARATOR \
  92   ESYM(name)
  93
  94 #define ESIZE(name_, size_)
  95 #define EOBJECT(name_)
  96
  97 // r7 is preserved, but add it for EABI alignment..
  98 #define EXTRA_UNSAVED_REGS r7, r9,
  99
 100 #endif
 101
 102 #if defined(__MACH__) || defined(__PIC__)
 103 #define TEXRELS_FORBIDDEN
 104 #endif
 105
 106 #endif /* __ARM_FEATURES_H__ */