conftest.c

   1 #include <stdio.h>
   2
   3 /* Define architecture */
   4 #if defined(__i386__) || defined _M_IX86
   5 # define TRIPLET_ARCH "i386"
   6 #elif defined(__x86_64__) || defined _M_AMD64
   7 # define TRIPLET_ARCH "x86_64"
   8 #elif defined(__arm__)
   9 # define TRIPLET_ARCH "arm"
  10 #elif defined(__aarch64__)
  11 # define TRIPLET_ARCH "aarch64"
  12 #else
  13 # define TRIPLET_ARCH "unknown"
  14 #endif
  15
  16 /* Define OS */
  17 #if defined (__linux__)
  18 # define TRIPLET_OS "linux"
  19 #elif defined (__FreeBSD__) || defined (__FreeBSD_kernel__)
  20 # define TRIPLET_OS "kfreebsd"
  21 #elif defined _WIN32
  22 # define TRIPLET_OS "win32"
  23 #elif !defined (__GNU__)
  24 # define TRIPLET_OS "unknown"
  25 #endif
  26
  27 /* Define calling convention and ABI */
  28 #if defined (__ARM_EABI__)
  29 # if defined (__ARM_PCS_VFP)
  30 #  define TRIPLET_ABI "gnueabihf"
  31 # else
  32 #  define TRIPLET_ABI "gnueabi"
  33 # endif
  34 #else
  35 # define TRIPLET_ABI "gnu"
  36 #endif
  37
  38 #if defined _WIN32
  39 # define TRIPLET TRIPLET_ARCH "-" TRIPLET_OS
  40 #elif defined __GNU__
  41 # define TRIPLET TRIPLET_ARCH "-" TRIPLET_ABI
  42 #else
  43 # define TRIPLET TRIPLET_ARCH "-" TRIPLET_OS "-" TRIPLET_ABI
  44 #endif
  45
  46 #if defined(_WIN32)
  47 int _CRT_glob = 0;
  48 #endif
  49
  50 int main(int argc, char *argv[])
  51 {
  52     switch(argc == 2 ? argv[1][0] : 0) {
  53         case 'b':
  54         {
  55             volatile unsigned foo = 0x01234567;
  56             puts(*(unsigned char*)&foo == 0x67 ? "no" : "yes");
  57             break;
  58         }
  59 #ifdef __GNUC__
  60         case 'm':
  61             printf("%d\n", __GNUC_MINOR__);
  62             break;
  63         case 'v':
  64             printf("%d\n", __GNUC__);
  65             break;
  66 #elif defined __TINYC__
  67         case 'v':
  68             puts("0");
  69             break;
  70         case 'm':
  71             printf("%d\n", __TINYC__);
  72             break;
  73 #else
  74         case 'm':
  75         case 'v':
  76             puts("0");
  77             break;
  78 #endif
  79         case 't':
  80             puts(TRIPLET);
  81             break;
  82
  83         default:
  84             break;
  85     }
  86     return 0;
  87 }