1 // RUN: %clang_hwasan -O0 %s -o %t
2 // RUN: %env_hwasan_opts=malloc_bisect_left=0,malloc_bisect_right=0 not %run %t 2>&1 | \
3 // RUN: FileCheck %s --check-prefix=CRASH
4 // RUN: %env_hwasan_opts=malloc_bisect_left=1000,malloc_bisect_right=999 %run %t 2>&1
5 // RUN: %env_hwasan_opts=malloc_bisect_left=0,malloc_bisect_right=4294967295 not %run %t 2>&1 | \
6 // RUN: FileCheck %s --check-prefix=CRASH
7 // RUN: %env_hwasan_opts=malloc_bisect_left=0,malloc_bisect_right=4294967295,malloc_bisect_dump=1 not %run %t 2>&1 | \
8 // RUN: FileCheck %s --check-prefixes=CRASH,DUMP
9
10 #include <stdlib.h>
11 #include <stdio.h>
12 #include <sanitizer/hwasan_interface.h>
13
main()14 int main() {
15 __hwasan_enable_allocator_tagging();
16 // DUMP: [alloc] {{.*}} 10{{$}}
17 // DUMP: in main{{.*}}malloc_bisect.c
18 char * volatile p = (char*)malloc(10);
19 // CRASH: HWAddressSanitizer: tag-mismatch on address
20 // CRASH: in main{{.*}}malloc_bisect.c
21 char volatile x = p[16];
22 free(p);
23 __hwasan_disable_allocator_tagging();
24
25 return 0;
26 }
27