| 1 | // RUN: %clangxx_hwasan -O0 %s -o %t && not %env_hwasan_opts=symbolize=0 %run %t 2>&1 | FileCheck %s --implicit-check-not=RETURN_FROM_TEST |
|---|
| 2 | // RUN: %clangxx_hwasan -O3 %s -o %t && not %env_hwasan_opts=symbolize=0 %run %t 2>&1 | FileCheck %s --implicit-check-not=RETURN_FROM_TEST |
|---|
| 3 | // RUN: %clangxx_hwasan -O0 %s -o %t && not %env_hwasan_opts=halt_on_error=0:symbolize=0 %run %t 2>&1 | FileCheck %s --implicit-check-not=RETURN_FROM_TEST --check-prefixes=CHECK,RECOVER |
|---|
| 4 | |
|---|
| 5 | // UNSUPPORTED: android |
|---|
| 6 | |
|---|
| 7 | #include <assert.h> |
|---|
| 8 | #include <errno.h> |
|---|
| 9 | #include <glob.h> |
|---|
| 10 | #include <malloc.h> |
|---|
| 11 | #include <stdio.h> |
|---|
| 12 | #include <string.h> |
|---|
| 13 | |
|---|
| 14 | #include <sanitizer/hwasan_interface.h> |
|---|
| 15 | #include <sanitizer/linux_syscall_hooks.h> |
|---|
| 16 | |
|---|
| 17 | /* Test the presence of __sanitizer_syscall_ in the tool runtime, and general |
|---|
| 18 | sanity of their behaviour. */ |
|---|
| 19 | |
|---|
| 20 | int main(int argc, char *argv[]) { |
|---|
| 21 | // lit.cfg.py currently sets 'disable_allocator_tagging=1' |
|---|
| 22 | __hwasan_enable_allocator_tagging(); |
|---|
| 23 | |
|---|
| 24 | char *buf = (char *)malloc(size: 1000); |
|---|
| 25 | assert(buf != NULL); |
|---|
| 26 | |
|---|
| 27 | __sanitizer_syscall_pre_recvmsg(0, buf - 1, 0); |
|---|
| 28 | // CHECK: HWAddressSanitizer: tag-mismatch on address [[PTR:0x[a-f0-9]+]] |
|---|
| 29 | // CHECK: Cause: heap-buffer-overflow |
|---|
| 30 | // CHECK: [[PTR]] is located 1 bytes before a 1000-byte region |
|---|
| 31 | |
|---|
| 32 | free(ptr: buf); |
|---|
| 33 | fprintf(stderr, format: "RETURN_FROM_TEST\n" ); |
|---|
| 34 | // RECOVER: RETURN_FROM_TEST |
|---|
| 35 | return 0; |
|---|
| 36 | } |
|---|
| 37 | |
|---|
