compiler-rt/test/asan/TestCases/Windows/report_globals_vs_freelibrary.cpp

   1 // RUN: %clang_cl_asan %LD %Od -DDLL %s %Fe%t.dll
   2 // RUN: %clang_cl_asan %Od -DEXE %s %Fe%te.exe
   3 // RUN: %env_asan_opts=report_globals=2 %run %te.exe %t.dll 2>&1 | FileCheck %s
   4
   5 #include <windows.h>
   6 #include <stdio.h>
   7 #include <string.h>
   8
   9 #if defined(EXE)
  10 int main(int argc, char **argv) {
  11   if (argc != 2) {
  12     printf("Usage: %s [client].dll\n", argv[0]);
  13     return 101;
  14   }
  15   const char *dll_name = argv[1];
  16
  17 // CHECK: time to load DLL
  18   printf("time to load DLL\n");
  19   fflush(0);
  20
  21 // On DLL load, the "in DLL\n" string is registered:
  22 // CHECK: Added Global{{.*}} size=19
  23 // CHECK: in DLL(reason=1)
  24   HMODULE dll = LoadLibrary(dll_name);
  25   if (dll == NULL)
  26     return 3;
  27
  28 // CHECK: in DLL(reason=0)
  29 // CHECK-NEXT: Removed Global{{.*}} size=19
  30   if (!FreeLibrary(dll))
  31     return 4;
  32
  33 // CHECK: bye!
  34   printf("bye!\n");
  35   fflush(0);
  36 }
  37 #elif defined(DLL)
  38 extern "C" {
  39 BOOL WINAPI DllMain(HMODULE, DWORD reason, LPVOID) {
  40   printf("in DLL(reason=%d)\n", (int)reason);
  41   fflush(0);
  42   return TRUE;
  43 }
  44 }
  45 #else
  46 # error oops!
  47 #endif