| // RUN: %clangxx -g -O0 %s -o %t |
| |
| // Check that trying to dlopen() the ASan dylib fails. |
| // We explictly set `abort_on_error=0` because |
| // - By default the lit config sets this but we don't want this |
| // test to implicitly depend on this. |
| // - It avoids requiring `--crash` to be passed to `not`. |
| // RUN: APPLE_ASAN_INIT_FOR_DLOPEN=0 %env_asan_opts=abort_on_error=0 not \ |
| // RUN: %run %t %shared_libasan 2>&1 | \ |
| // RUN: FileCheck -check-prefix=CHECK-DL-OPEN-FAIL %s |
| // RUN: env -u APPLE_ASAN_INIT_FOR_DLOPEN %env_asan_opts=abort_on_error=0 not \ |
| // RUN: %run %t %shared_libasan 2>&1 | \ |
| // RUN: FileCheck -check-prefix=CHECK-DL-OPEN-FAIL %s |
| |
| // Check that we can successfully dlopen the ASan dylib when we set the right |
| // environment variable. |
| // RUN: env APPLE_ASAN_INIT_FOR_DLOPEN=1 %run %t %shared_libasan 2>&1 | \ |
| // RUN: FileCheck -check-prefix=CHECK-DL-OPEN-SUCCESS %s |
| |
| #include <dlfcn.h> |
| #include <stdio.h> |
| |
| // CHECK-DL-OPEN-FAIL: ERROR: Interceptors are not working |
| // CHECK-SAME-DL-OPEN-FAIL: Please launch the executable with: DYLD_INSERT_LIBRARIES={{.+}}/libclang_rt.asan_{{.+}}_dynamic.dylib |
| |
| int main(int argc, char **argv) { |
| if (argc != 2) { |
| fprintf(stderr, "Usage: %s <dylib_path>\n", argv[0]); |
| return 1; |
| } |
| const char *dylib_path = argv[1]; |
| void *handle = dlopen(dylib_path, RTLD_LAZY); |
| if (!handle) { |
| fprintf(stderr, "Failed to dlopen: %s\n", dlerror()); |
| return 1; |
| } |
| // Make sure we can find a function we expect to be in the dylib. |
| void *fn = dlsym(handle, "__sanitizer_mz_size"); |
| if (!fn) { |
| fprintf(stderr, "Failed to get symbol: %s\n", dlerror()); |
| return 1; |
| } |
| // TODO(dliew): Actually call a function from the dylib that is safe to call. |
| // CHECK-DL-OPEN-SUCCESS: DONE |
| printf("DONE\n"); |
| return 0; |
| } |