1 // RUN: %clangxx -g -O0 %s -o %t 2 3 // Check that trying to dlopen() the ASan dylib fails. 4 // We explictly set `abort_on_error=0` because 5 // - By default the lit config sets this but we don't want this 6 // test to implicitly depend on this. 7 // - It avoids requiring `--crash` to be passed to `not`. 8 // RUN: APPLE_ASAN_INIT_FOR_DLOPEN=0 %env_asan_opts=abort_on_error=0 not \ 9 // RUN: %run %t %shared_libasan 2>&1 | \ 10 // RUN: FileCheck -check-prefix=CHECK-DL-OPEN-FAIL %s 11 // RUN: env -u APPLE_ASAN_INIT_FOR_DLOPEN %env_asan_opts=abort_on_error=0 not \ 12 // RUN: %run %t %shared_libasan 2>&1 | \ 13 // RUN: FileCheck -check-prefix=CHECK-DL-OPEN-FAIL %s 14 15 // Check that we can successfully dlopen the ASan dylib when we set the right 16 // environment variable. 17 // RUN: env APPLE_ASAN_INIT_FOR_DLOPEN=1 %run %t %shared_libasan 2>&1 | \ 18 // RUN: FileCheck -check-prefix=CHECK-DL-OPEN-SUCCESS %s 19 20 #include <dlfcn.h> 21 #include <stdio.h> 22 23 // CHECK-DL-OPEN-FAIL: ERROR: Interceptors are not working 24 25 int main(int argc, char **argv) { 26 if (argc != 2) { 27 fprintf(stderr, "Usage: %s <dylib_path>\n", argv[0]); 28 return 1; 29 } 30 const char *dylib_path = argv[1]; 31 void *handle = dlopen(dylib_path, RTLD_LAZY); 32 if (!handle) { 33 fprintf(stderr, "Failed to dlopen: %s\n", dlerror()); 34 return 1; 35 } 36 // Make sure we can find a function we expect to be in the dylib. 37 void *fn = dlsym(handle, "__sanitizer_mz_size"); 38 if (!fn) { 39 fprintf(stderr, "Failed to get symbol: %s\n", dlerror()); 40 return 1; 41 } 42 // TODO(dliew): Actually call a function from the dylib that is safe to call. 43 // CHECK-DL-OPEN-SUCCESS: DONE 44 printf("DONE\n"); 45 return 0; 46 } 47