| // Check that --gc-sections does not throw away (or localize) parts of sanitizer |
| // interface. |
| // RUN: %clang_asan %s -Wl,--gc-sections -ldl -o %t |
| // RUN: %clang_asan %s -DBUILD_SO -fPIC -o %t-so.so -shared |
| // RUN: %run %t 2>&1 |
| |
| // REQUIRES: asan-64-bits |
| |
| #ifndef BUILD_SO |
| #include <assert.h> |
| #include <dlfcn.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| int main(int argc, char *argv[]) { |
| char path[4096]; |
| snprintf(path, sizeof(path), "%s-so.so", argv[0]); |
| |
| void *handle = dlopen(path, RTLD_LAZY); |
| if (!handle) fprintf(stderr, "%s\n", dlerror()); |
| assert(handle != 0); |
| |
| typedef void (*F)(); |
| F f = (F)dlsym(handle, "call_rtl_from_dso"); |
| printf("%s\n", dlerror()); |
| assert(dlerror() == 0); |
| f(); |
| |
| dlclose(handle); |
| return 0; |
| } |
| |
| #else // BUILD_SO |
| |
| #include <sanitizer/asan_interface.h> |
| extern "C" void call_rtl_from_dso() { |
| volatile int32_t x; |
| volatile int32_t y = __sanitizer_unaligned_load32((void *)&x); |
| } |
| |
| #endif // BUILD_SO |
