testing/test-cases/dlopen-in-init2.dtest/main.c

   1
   2
   3 // BUILD:  $CC bar.c -dynamiclib -o $BUILD_DIR/libbar.dylib -install_name $RUN_DIR/libbar.dylib
   4 // BUILD:  $CC baz.c -dynamiclib -o $BUILD_DIR/libbaz.dylib -install_name $RUN_DIR/libbaz.dylib
   5 // BUILD:  $CC foo.c -dynamiclib -o $BUILD_DIR/libfoo.dylib -install_name $RUN_DIR/libfoo.dylib $BUILD_DIR/libbaz.dylib -DRUN_DIR="$RUN_DIR"
   6 // BUILD:  $CC main.c -o $BUILD_DIR/dlopen-in-init2.exe $BUILD_DIR/libfoo.dylib $BUILD_DIR/libbar.dylib
   7
   8 // RUN:  ./dlopen-in-init2.exe
   9
  10 // This test uses dlopen to jump ahead in the initializer graph
  11 // The static linkages here should result in initializers being run in the order libbaz, libfoo, libbar
  12 // However, a dlopen of libbar inside libfoo's static initializer means we need to skip ahead and initialize libbar to satisfy that dlopen
  13 // This means that the closure needs to have "initializer-order" on libfoo and not just the top level executable image.
  14 // It also means that dlopen needs to check we have actually initialized libbar instead of just bumping its ref-count.
  15
  16 #include <stdio.h>
  17 #include <dlfcn.h>
  18 #include <stdlib.h>
  19
  20
  21 extern int foo();
  22 extern int bar();
  23
  24 int main() {
  25         printf("[BEGIN] dlopen-in-init2\n");
  26         if ( foo() != 0 )
  27                 return 0;
  28         if ( bar() != 0 )
  29                 return 0;
  30         printf("[PASS]  dlopen-in-init2\n");
  31         return 0;
  32 }
  33