testing/test-cases/_dyld_get_image_slide.dtest/main.c

   1
   2 // BUILD:  $CC main.c            -o $BUILD_DIR/_dyld_get_image_slide-test.exe
   3
   4 // RUN:  ./_dyld_get_image_slide-test.exe
   5
   6
   7 #include <stdio.h>
   8 #include <string.h>
   9 #include <dlfcn.h>
  10 #include <mach-o/dyld.h>
  11 #include <mach-o/dyld_priv.h>
  12
  13 #include "test_support.h"
  14
  15 int main(int argc, const char* argv[], const char* envp[], const char* apple[]) {
  16     int count = _dyld_image_count();
  17     for (int i=0; i < count; ++i) {
  18         const struct mach_header* mh    = _dyld_get_image_header(i);
  19         const char*               name  = _dyld_get_image_name(i);
  20         intptr_t                  slide = _dyld_get_image_slide(mh);
  21         intptr_t                  vmaddrSlide = _dyld_get_image_vmaddr_slide(i);
  22         if ( slide != vmaddrSlide ) {
  23             FAIL("%lld != %lld in %s", (uint64_t)slide, (uint64_t)vmaddrSlide, name);
  24             return 0;
  25         }
  26     }
  27
  28     // Check that garbage values return 0
  29     uintptr_t notMagic = 0;
  30     intptr_t slide = _dyld_get_image_slide((const struct mach_header*)&notMagic);
  31     if (slide != 0) {
  32         FAIL("slide value %lld for bad magic", (uint64_t)slide);
  33     }
  34
  35     intptr_t vmaddrSlide = _dyld_get_image_vmaddr_slide(count + 1);
  36     if (vmaddrSlide != 0) {
  37         FAIL("vmaddr slide value %lld for index %d", (uint64_t)vmaddrSlide, count + 1);
  38     }
  39
  40     PASS("Success");
  41 }
  42