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 #elif defined(__riscv) && defined(__LP64__)
  17 # define TRIPLET_ARCH "riscv64"
  18 #else
  19 # define TRIPLET_ARCH "unknown"
  20 #endif
  21
  22 /* Define OS */
  23 #if defined (__linux__)
  24 # define TRIPLET_OS "linux"
  25 #elif defined (__FreeBSD__) || defined (__FreeBSD_kernel__)
  26 # define TRIPLET_OS "kfreebsd"
  27 #elif defined _WIN32
  28 # define TRIPLET_OS "win32"
  29 #elif !defined (__GNU__)
  30 # define TRIPLET_OS "unknown"
  31 #endif
  32
  33 /* Define calling convention and ABI */
  34 #if defined (__ARM_EABI__)
  35 # if defined (__ARM_PCS_VFP)
  36 #  define TRIPLET_ABI "gnueabihf"
  37 # else
  38 #  define TRIPLET_ABI "gnueabi"
  39 # endif
  40 #else
  41 # define TRIPLET_ABI "gnu"
  42 #endif
  43
  44 #if defined _WIN32
  45 # define TRIPLET TRIPLET_ARCH "-" TRIPLET_OS
  46 #elif defined __GNU__
  47 # define TRIPLET TRIPLET_ARCH "-" TRIPLET_ABI
  48 #else
  49 # define TRIPLET TRIPLET_ARCH "-" TRIPLET_OS "-" TRIPLET_ABI
  50 #endif
  51
  52 #if defined(_WIN32)
  53 int _CRT_glob = 0;
  54 #endif
  55
  56 int main(int argc, char *argv[])
  57 {
  58 #if defined(_WIN32)
  59     _setmode(_fileno(stdout), _O_BINARY);  /* don't translate \n to \r\n */
  60 #endif
  61     switch(argc == 2 ? argv[1][0] : 0) {
  62         case 'b':
  63         {
  64             volatile unsigned foo = 0x01234567;
  65             puts(*(unsigned char*)&foo == 0x67 ? "no" : "yes");
  66             break;
  67         }
  68 #ifdef __GNUC__
  69         case 'm':
  70             printf("%d\n", __GNUC_MINOR__);
  71             break;
  72         case 'v':
  73             printf("%d\n", __GNUC__);
  74             break;
  75 #elif defined __TINYC__
  76         case 'v':
  77             puts("0");
  78             break;
  79         case 'm':
  80             printf("%d\n", __TINYC__);
  81             break;
  82 #else
  83         case 'm':
  84         case 'v':
  85             puts("0");
  86             break;
  87 #endif
  88         case 't':
  89             puts(TRIPLET);
  90             break;
  91
  92         default:
  93             break;
  94     }
  95     return 0;
  96 }