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 // FIXME: Recursive call into malloc from stack->Print(). Or maybe this feature
11 // needs to be removed. We don't use it, but it's in the hot code.
12 // UNSUPPORTED: internal_symbolizer
13
14 #include <stdlib.h>
15 #include <stdio.h>
16 #include <sanitizer/hwasan_interface.h>
17
main()18 int main() {
19 __hwasan_enable_allocator_tagging();
20 // DUMP: [alloc] {{.*}} 10{{$}}
21 // DUMP: in main{{.*}}malloc_bisect.c
22 char * volatile p = (char*)malloc(10);
23 // CRASH: HWAddressSanitizer: tag-mismatch on address
24 // CRASH: in main{{.*}}malloc_bisect.c
25 char volatile x = p[16];
26 free(p);
27 __hwasan_disable_allocator_tagging();
28
29 return 0;
30 }
31