| // Test that AddressSanitizer does not re-animate dead globals when dead |
| // stripping is turned on. |
| // |
| // This test verifies that an out-of-bounds access on a global variable is |
| // detected after dead stripping has been performed. This proves that the |
| // runtime is able to register globals in the __DATA,__asan_globals section. |
| |
| // REQUIRES: osx-ld64-live_support |
| |
| // RUN: %clang_asan %min_macos_deployment_target=10.11 -Xlinker -dead_strip -o %t %s |
| // RUN: llvm-nm --format=posix %t | FileCheck --check-prefix NM-CHECK %s |
| // RUN: not %run %t 2>&1 | FileCheck --check-prefix ASAN-CHECK %s |
| |
| int alive[1] = {}; |
| int dead[1] = {}; |
| // NM-CHECK: {{^_alive }} |
| // NM-CHECK-NOT: {{^_dead }} |
| |
| int main(int argc, char *argv[]) { |
| alive[argc] = 0; |
| // ASAN-CHECK: {{0x.* is located 0 bytes after global variable}} |
| return 0; |
| } |
