testing/test-cases/dlsym-re-export.dtest/main.c

   1
   2 // BUILD:  mkdir -p $BUILD_DIR/sub1 $BUILD_DIR/sub2
   3 // BUILD:  $CC sub1.c -dynamiclib -install_name @rpath/libsub1.dylib   -o $BUILD_DIR/sub1/libsub1.dylib
   4 // BUILD:  $CC sub2.c -dynamiclib -install_name @rpath/libsub2.dylib   -o $BUILD_DIR/sub2/libsub2.dylib
   5 // BUILD:  $CC foo.c  -dynamiclib -install_name $RUN_DIR/libfoo.dylib  -o $BUILD_DIR/libfoo.dylib -rpath @loader_path/sub1 -Wl,-reexport_library,$BUILD_DIR/sub1/libsub1.dylib -Wl,-reexport_library,$BUILD_DIR/sub2/libsub2.dylib
   6 // BUILD:  $CC main.c  -o $BUILD_DIR/dlsym-reexport.exe -DRUN_DIR="$RUN_DIR" -rpath @loader_path/sub2
   7
   8 // RUN:  ./dlsym-reexport.exe
   9
  10 // rpath for sub1 is found in libfoo.dylib.  rpath for sub2 is found in dlsym-reexport.exe
  11
  12 #include <stdio.h>
  13 #include <dlfcn.h>
  14
  15 int main()
  16 {
  17     printf("[BEGIN] dlsym-re-export\n");
  18     // RTLD_FIRST means dlsym() should only search libfoo.dylib (and any re-exports)
  19         void* handle = dlopen(RUN_DIR "/libfoo.dylib", RTLD_FIRST);
  20         if ( handle == NULL ) {
  21         printf("dlerror(): %s\n", dlerror());
  22         printf("[FAIL]  dlsym-re-export\n");
  23                 return 0;
  24         }
  25
  26         void* sym1 = dlsym(handle, "sub1");
  27         if ( sym1 == NULL ) {
  28         printf("dlerror(): %s\n", dlerror());
  29         printf("[FAIL]  dlsym-re-export\n");
  30                 return 0;
  31         }
  32
  33         void* sym2 = dlsym(handle, "sub2");
  34         if ( sym2 == NULL ) {
  35         printf("dlerror(): %s\n", dlerror());
  36         printf("[FAIL]  dlsym-re-export\n");
  37                 return 0;
  38         }
  39
  40     printf("[PASS]  dlsym-re-export\n");
  41         return 0;
  42 }
  43