testing/test-cases/weak-def-unload.dtest/main.c

   1 // BUILD_ONLY: MacOSX
   2
   3 // BUILD:           $CC bar.c -dynamiclib -install_name $RUN_DIR/libmissing.dylib -o $BUILD_DIR/libbar.dylib
   4 // BUILD:           $CC foo.c -dynamiclib $BUILD_DIR/libbar.dylib -install_name $RUN_DIR/libfoo.dylib -o $BUILD_DIR/libfoo.dylib
   5 // BUILD:           $CC main.c -o $BUILD_DIR/MATLAB -DRUN_DIR="$RUN_DIR"
   6
   7 // RUN:  ./MATLAB
   8
   9 // libfoo.dylib was weak-def exported symbols.  This tests that it can fail to load cleanly.
  10
  11 #include <stdio.h>
  12 #include <dlfcn.h>
  13
  14 #include "test_support.h"
  15
  16
  17
  18 int main(int argc, const char* argv[])
  19 {
  20     // force weak-def table to be generated
  21     void* handle = dlopen("/usr/lib/libc++.dylib", 0);
  22     if ( handle == NULL ) {
  23         FAIL("weak-def-unload, expected dlopen(libc++.dylib) to succeed");
  24         }
  25
  26     // try to dlopen something with weak symbols that fails to load
  27     handle = dlopen(RUN_DIR "/libfoo.dylib", 0);
  28     if ( handle != NULL ) {
  29         FAIL("weak-def-unload, expected dlopen to fail");
  30         }
  31
  32     PASS("weak-def-unload");
  33 }
  34