| // Make sure we do not segfault when checking an address close to kLowMemEnd. |
| // RUN: %clang_hwasan %s -o %t |
| // RUN: not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK |
| |
| // REQUIRES: stable-runtime |
| // REQUIRES: aarch64-target-arch |
| |
| #include <sanitizer/hwasan_interface.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <sys/mman.h> |
| |
| static volatile char sink; |
| extern void *__hwasan_shadow_memory_dynamic_address; |
| |
| int main(int argc, char **argv) { |
| void *high_addr = (char *)__hwasan_shadow_memory_dynamic_address - 0x1000; |
| void *r = mmap(high_addr, 4096, PROT_READ, MAP_FIXED | MAP_ANON | MAP_PRIVATE, |
| -1, 0); |
| if (r == MAP_FAILED) { |
| fprintf(stderr, "Failed to mmap\n"); |
| abort(); |
| } |
| volatile char *x = (char *)__hwasan_tag_pointer(r, 4); |
| sink = *x; |
| } |
| |
| // CHECK-NOT: Failed to mmap |
| // CHECK-NOT: Segmentation fault |
| // CHECK-NOT: SEGV |
