| 1 | // Check that without suppressions, we catch the issue. |
|---|---|
| 2 | // RUN: %clangxx_asan -O0 %s -o %t |
| 3 | // RUN: not %run %t 2>&1 | FileCheck --check-prefix=CHECK-CRASH %s |
| 4 | |
| 5 | // RUN: echo "interceptor_via_fun:crash_function" > %t.supp |
| 6 | // RUN: %clangxx_asan -O0 %s -o %t && %env_asan_opts=suppressions='"%t.supp"' %run %t 2>&1 | FileCheck --check-prefix=CHECK-IGNORE %s |
| 7 | // RUN: %clangxx_asan -O3 %s -o %t && %env_asan_opts=suppressions='"%t.supp"' %run %t 2>&1 | FileCheck --check-prefix=CHECK-IGNORE %s |
| 8 | |
| 9 | // FIXME: Upload suppressions to device. |
| 10 | // XFAIL: android |
| 11 | // UNSUPPORTED: ios |
| 12 | |
| 13 | // FIXME: atos does not work for inlined functions, yet llvm-symbolizer |
| 14 | // does not always work with debug info on Darwin. Behavior is similar on MSVC x86 outside of /Od. |
| 15 | // UNSUPPORTED: darwin |
| 16 | // UNSUPPORTED: target={{.*windows-msvc.*}} && asan-32-bits |
| 17 | |
| 18 | #include <stdio.h> |
| 19 | #include <stdlib.h> |
| 20 | #include <string.h> |
| 21 | |
| 22 | void crash_function() { |
| 23 | char *a = (char *)malloc(size: 6); |
| 24 | free(ptr: a); |
| 25 | size_t len = strlen(s: a); // BOOM |
| 26 | fprintf(stderr, format: "strlen ignored, len = %zu\n", len); |
| 27 | } |
| 28 | |
| 29 | int main() { |
| 30 | crash_function(); |
| 31 | } |
| 32 | |
| 33 | // CHECK-CRASH: AddressSanitizer: heap-use-after-free |
| 34 | // CHECK-CRASH-NOT: strlen ignored |
| 35 | // CHECK-IGNORE-NOT: AddressSanitizer: heap-use-after-free |
| 36 | // CHECK-IGNORE: strlen ignored |
| 37 |