lib/asan/lit_tests/TestCases/shared-lib-test.cc

   1 // RUN: %clangxx_asan -O0 %p/SharedLibs/shared-lib-test-so.cc \
   2 // RUN:     -fPIC -shared -o %t-so.so
   3 // RUN: %clangxx_asan -O0 %s -o %t && not %t 2>&1 | FileCheck %s
   4 // RUN: %clangxx_asan -O1 %p/SharedLibs/shared-lib-test-so.cc \
   5 // RUN:     -fPIC -shared -o %t-so.so
   6 // RUN: %clangxx_asan -O1 %s -o %t && not %t 2>&1 | FileCheck %s
   7 // RUN: %clangxx_asan -O2 %p/SharedLibs/shared-lib-test-so.cc \
   8 // RUN:     -fPIC -shared -o %t-so.so
   9 // RUN: %clangxx_asan -O2 %s -o %t && not %t 2>&1 | FileCheck %s
  10 // RUN: %clangxx_asan -O3 %p/SharedLibs/shared-lib-test-so.cc \
  11 // RUN:     -fPIC -shared -o %t-so.so
  12 // RUN: %clangxx_asan -O3 %s -o %t && not %t 2>&1 | FileCheck %s
  13
  14 #include <dlfcn.h>
  15 #include <stdio.h>
  16 #include <string.h>
  17
  18 #include <string>
  19
  20 using std::string;
  21
  22 typedef void (fun_t)(int x);
  23
  24 int main(int argc, char *argv[]) {
  25   string path = string(argv[0]) + "-so.so";
  26   printf("opening %s ... \n", path.c_str());
  27   void *lib = dlopen(path.c_str(), RTLD_NOW);
  28   if (!lib) {
  29     printf("error in dlopen(): %s\n", dlerror());
  30     return 1;
  31   }
  32   fun_t *inc = (fun_t*)dlsym(lib, "inc");
  33   if (!inc) return 1;
  34   printf("ok\n");
  35   inc(1);
  36   inc(-1);  // BOOM
  37   // CHECK: {{.*ERROR: AddressSanitizer: global-buffer-overflow}}
  38   // CHECK: {{READ of size 4 at 0x.* thread T0}}
  39   // CHECK: {{    #0 0x.*}}
  40   // CHECK: {{    #1 0x.* in main .*shared-lib-test.cc:}}[[@LINE-4]]
  41   return 0;
  42 }