37 lines · cpp
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_TEST2// RUN: %clangxx_hwasan -O3 %s -o %t && not %env_hwasan_opts=symbolize=0 %run %t 2>&1 | FileCheck %s --implicit-check-not=RETURN_FROM_TEST3// 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,RECOVER4 5// UNSUPPORTED: android6 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 general18 sanity of their behaviour. */19 20int 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(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-overflow30 // CHECK: [[PTR]] is located 1 bytes before a 1000-byte region31 32 free(buf);33 fprintf(stderr, "RETURN_FROM_TEST\n");34 // RECOVER: RETURN_FROM_TEST35 return 0;36}37