1*ae6db862SVitaly Buka // 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*ae6db862SVitaly Buka // 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*ae6db862SVitaly Buka // 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 4de79b0baSThurston Dang 5de79b0baSThurston Dang // UNSUPPORTED: android 6de79b0baSThurston Dang 7de79b0baSThurston Dang #include <assert.h> 8de79b0baSThurston Dang #include <errno.h> 9de79b0baSThurston Dang #include <glob.h> 10de79b0baSThurston Dang #include <malloc.h> 11de79b0baSThurston Dang #include <stdio.h> 12de79b0baSThurston Dang #include <string.h> 13de79b0baSThurston Dang 14de79b0baSThurston Dang #include <sanitizer/hwasan_interface.h> 15de79b0baSThurston Dang #include <sanitizer/linux_syscall_hooks.h> 16de79b0baSThurston Dang 17de79b0baSThurston Dang /* Test the presence of __sanitizer_syscall_ in the tool runtime, and general 18de79b0baSThurston Dang sanity of their behaviour. */ 19de79b0baSThurston Dang main(int argc,char * argv[])20de79b0baSThurston Dangint main(int argc, char *argv[]) { 21de79b0baSThurston Dang // lit.cfg.py currently sets 'disable_allocator_tagging=1' 22de79b0baSThurston Dang __hwasan_enable_allocator_tagging(); 23de79b0baSThurston Dang 24de79b0baSThurston Dang char *buf = (char *)malloc(1000); 25de79b0baSThurston Dang assert(buf != NULL); 26de79b0baSThurston Dang 27de79b0baSThurston Dang __sanitizer_syscall_pre_recvmsg(0, buf - 1, 0); 28de79b0baSThurston Dang // CHECK: HWAddressSanitizer: tag-mismatch on address [[PTR:0x[a-f0-9]+]] 29de79b0baSThurston Dang // CHECK: Cause: heap-buffer-overflow 30de79b0baSThurston Dang // CHECK: [[PTR]] is located 1 bytes before a 1000-byte region 31de79b0baSThurston Dang 32de79b0baSThurston Dang free(buf); 33*ae6db862SVitaly Buka fprintf(stderr, "RETURN_FROM_TEST\n"); 34*ae6db862SVitaly Buka // RECOVER: RETURN_FROM_TEST 35de79b0baSThurston Dang return 0; 36de79b0baSThurston Dang } 37