1 // RUN: %clang_hwasan %s -o %t && not %run %t 2>&1 | FileCheck %s 2 3 #include <stdio.h> 4 #include <stdlib.h> 5 6 #include <sanitizer/hwasan_interface.h> 7 main()8int main() { 9 __hwasan_enable_allocator_tagging(); 10 char *p = (char *)malloc(1); 11 fprintf(stderr, "ALLOC %p\n", __hwasan_tag_pointer(p, 0)); 12 // CHECK: ALLOC {{[0x]+}}[[ADDR:.*]] 13 free(p - 8); 14 // CHECK: ERROR: HWAddressSanitizer: invalid-free on address {{.*}} at pc {{[0x]+}}[[PC:.*]] on thread T{{[0-9]+}} 15 // CHECK: #0 {{[0x]+}}{{.*}}[[PC]] in {{.*}}free 16 // CHECK: #1 {{.*}} in main {{.*}}wild-free-close.c:[[@LINE-3]] 17 // CHECK: is located 8 bytes before a 1-byte region [{{[0x]+}}{{.*}}[[ADDR]] 18 // CHECK-NOT: Segmentation fault 19 // CHECK-NOT: SIGSEGV 20 return 0; 21 } 22