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(__APPLE__)
  30 # define TRIPLET_OS "darwin"
  31 #elif !defined (__GNU__)
  32 # define TRIPLET_OS "unknown"
  33 #endif
  34
  35 /* Define calling convention and ABI */
  36 #if defined (__ARM_EABI__)
  37 # if defined (__ARM_PCS_VFP)
  38 #  define TRIPLET_ABI "gnueabihf"
  39 # else
  40 #  define TRIPLET_ABI "gnueabi"
  41 # endif
  42 #else
  43 # define TRIPLET_ABI "gnu"
  44 #endif
  45
  46 #if defined _WIN32
  47 # define TRIPLET TRIPLET_ARCH "-" TRIPLET_OS
  48 #elif defined __GNU__
  49 # define TRIPLET TRIPLET_ARCH "-" TRIPLET_ABI
  50 #else
  51 # define TRIPLET TRIPLET_ARCH "-" TRIPLET_OS "-" TRIPLET_ABI
  52 #endif
  53
  54 #if defined(_WIN32)
  55 int _CRT_glob = 0;
  56 #endif
  57
  58 int main(int argc, char *argv[])
  59 {
  60 #if defined(_WIN32)
  61     _setmode(_fileno(stdout), _O_BINARY);  /* don't translate \n to \r\n */
  62 #endif
  63     switch(argc == 2 ? argv[1][0] : 0) {
  64         case 'b':
  65         {
  66             volatile unsigned foo = 0x01234567;
  67             puts(*(unsigned char*)&foo == 0x67 ? "no" : "yes");
  68             break;
  69         }
  70 #if defined(__clang__)
  71         case 'm':
  72             printf("%d\n", __clang_minor__);
  73             break;
  74         case 'v':
  75             printf("%d\n", __clang_major__);
  76             break;
  77 #elif defined(__TINYC__)
  78         case 'v':
  79             puts("0");
  80             break;
  81         case 'm':
  82             printf("%d\n", __TINYC__);
  83             break;
  84 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
  85         /* GNU comes last as other compilers may add 'GNU' compatibility */
  86         case 'm':
  87             printf("%d\n", __GNUC_MINOR__);
  88             break;
  89         case 'v':
  90             printf("%d\n", __GNUC__);
  91             break;
  92 #else
  93         case 'm':
  94         case 'v':
  95             puts("0");
  96             break;
  97 #endif
  98         case 't':
  99             puts(TRIPLET);
 100             break;
 101         case 'c':
 102 #if defined(__clang__)
 103             puts("clang");
 104 #elif defined(__TINYC__)
 105             puts("tcc");
 106 #elif defined(__GNUC__)
 107             puts("gcc");
 108 #else
 109             puts("unknown");
 110 #endif
 111             break;
 112         default:
 113             break;
 114     }
 115     return 0;
 116 }