conftest.c

   1 #include <stdio.h>
   2
   3 #if defined(_WIN32)
   4 #include <fcntl.h>
   5 #endif
   6
   7 /* Define architecture */
   8 #if defined(__i386__) || defined _M_IX86
   9 # define TRIPLET_ARCH "i386"
  10 #elif defined(__x86_64__) || defined _M_AMD64
  11 # define TRIPLET_ARCH "x86_64"
  12 #elif defined(__arm__)
  13 # define TRIPLET_ARCH "arm"
  14 #elif defined(__aarch64__)
  15 # define TRIPLET_ARCH "aarch64"
  16 #else
  17 # define TRIPLET_ARCH "unknown"
  18 #endif
  19
  20 /* Define OS */
  21 #if defined (__linux__)
  22 # define TRIPLET_OS "linux"
  23 #elif defined (__FreeBSD__) || defined (__FreeBSD_kernel__)
  24 # define TRIPLET_OS "kfreebsd"
  25 #elif defined _WIN32
  26 # define TRIPLET_OS "win32"
  27 #elif !defined (__GNU__)
  28 # define TRIPLET_OS "unknown"
  29 #endif
  30
  31 /* Define calling convention and ABI */
  32 #if defined (__ARM_EABI__)
  33 # if defined (__ARM_PCS_VFP)
  34 #  define TRIPLET_ABI "gnueabihf"
  35 # else
  36 #  define TRIPLET_ABI "gnueabi"
  37 # endif
  38 #else
  39 # define TRIPLET_ABI "gnu"
  40 #endif
  41
  42 #if defined _WIN32
  43 # define TRIPLET TRIPLET_ARCH "-" TRIPLET_OS
  44 #elif defined __GNU__
  45 # define TRIPLET TRIPLET_ARCH "-" TRIPLET_ABI
  46 #else
  47 # define TRIPLET TRIPLET_ARCH "-" TRIPLET_OS "-" TRIPLET_ABI
  48 #endif
  49
  50 #if defined(_WIN32)
  51 int _CRT_glob = 0;
  52 #endif
  53
  54 int main(int argc, char *argv[])
  55 {
  56 #if defined(_WIN32)
  57     _setmode(_fileno(stdout), _O_BINARY);  /* don't translate \n to \r\n */
  58 #endif
  59     switch(argc == 2 ? argv[1][0] : 0) {
  60         case 'b':
  61         {
  62             volatile unsigned foo = 0x01234567;
  63             puts(*(unsigned char*)&foo == 0x67 ? "no" : "yes");
  64             break;
  65         }
  66 #ifdef __GNUC__
  67         case 'm':
  68             printf("%d\n", __GNUC_MINOR__);
  69             break;
  70         case 'v':
  71             printf("%d\n", __GNUC__);
  72             break;
  73 #elif defined __TINYC__
  74         case 'v':
  75             puts("0");
  76             break;
  77         case 'm':
  78             printf("%d\n", __TINYC__);
  79             break;
  80 #else
  81         case 'm':
  82         case 'v':
  83             puts("0");
  84             break;
  85 #endif
  86         case 't':
  87             puts(TRIPLET);
  88             break;
  89
  90         default:
  91             break;
  92     }
  93     return 0;
  94 }