testing/test-cases/_dyld_get_objc_selector-shared-cache.dtest/main.c

   1
   2 // BUILD:  $CC main.c -o $BUILD_DIR/_dyld_get_objc_selector-shared-cache.exe
   3
   4 // RUN:  ./_dyld_get_objc_selector-shared-cache.exe
   5
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 #include <dlfcn.h>
   9 #include <mach-o/dyld.h>
  10 #include <mach-o/dyld_priv.h>
  11
  12 #include "test_support.h"
  13
  14 int main(int argc, const char* argv[], const char* envp[], const char* apple[]) {
  15     size_t cacheLen;
  16     uintptr_t cacheStart = (uintptr_t)_dyld_get_shared_cache_range(&cacheLen);
  17
  18     const char* selName = _dyld_get_objc_selector("retain");
  19
  20     if ( cacheStart != 0 ) {
  21         // We have a shared cache, so the selector should be there
  22         if ( selName == NULL ) {
  23             FAIL("_dyld_get_objc_selector() returned null for selector in shared cache");
  24         }
  25
  26         if ( ((uintptr_t)selName < cacheStart) || ((uintptr_t)selName >= (cacheStart + cacheLen)) ) {
  27             FAIL("_dyld_get_objc_selector() pointer outside of shared cache range");
  28         }
  29     } else {
  30         // No shared cache, so the selector should not be found.
  31         // FIXME: This assumption may be false once the selectors are in the closure.
  32         if ( selName != NULL ) {
  33             FAIL("_dyld_get_objc_selector() returned non-null for selector without shared cache");
  34         }
  35     }
  36
  37     PASS("Success");
  38 }
  39