testing/test-cases/dylib-static-weak-link.dtest/present.c

   1 // BUILD:  $CC foo.c -dynamiclib -o $BUILD_DIR/libfoo.dylib -install_name $RUN_DIR/libfoo.dylib
   2 // BUILD:  $CC present.c $BUILD_DIR/libfoo.dylib -o $BUILD_DIR/dylib-static-weak-present.exe
   3 // BUILD:  $CC foo.c -dynamiclib -o $BUILD_DIR/libfoo2.dylib -install_name $RUN_DIR/libfoomissing.dylib
   4 // BUILD:  $CC missing.c $BUILD_DIR/libfoo2.dylib -o $BUILD_DIR/dylib-static-weak-missing.exe
   5
   6 // BUILD: $SKIP_INSTALL $BUILD_DIR/libfoo2.dylib
   7
   8 // RUN:  ./dylib-static-weak-present.exe
   9 // RUN:  ./dylib-static-weak-missing.exe
  10
  11
  12 #include <stddef.h>
  13 #include <stdio.h>
  14
  15 #include "test_support.h"
  16
  17 extern int foo __attribute__((weak_import));
  18
  19
  20 int main(int argc, const char* argv[], const char* envp[], const char* apple[]) {
  21     // dylib will be found at runtime, so &foo should never be NULL
  22     if ( &foo != NULL ) {
  23        if ( foo == 42 )
  24             PASS("Success");
  25         else
  26             FAIL("Wrong value");
  27     }
  28     else {
  29         FAIL("&foo == NULL");
  30     }
  31 }
  32
  33