// RUN: %clangxx_hwasan -DSIZE=16 -O0 %s -o %t && %run %t 2>&1 | FileCheck %s #include #include #include #include int main() { char *alloc = (char *)malloc(4096); // Simulate short granule tags. alloc[15] = 0x00; alloc[31] = 0xbb; alloc[47] = 0xcc; alloc[63] = 0xdd; alloc[79] = 0xee; alloc[95] = 0xff; char *p = alloc; // Write tags to shadow. __hwasan_tag_memory(p, 1, 32); __hwasan_tag_memory(p + 32, 16, 16); __hwasan_tag_memory(p + 48, 0, 32); __hwasan_tag_memory(p + 80, 4, 16); char *q = (char *)__hwasan_tag_pointer(p, 7); __hwasan_print_shadow(q + 5, 89 - 5); // CHECK: HWASan shadow map for {{.*}}5 .. {{.*}}9 (pointer tag 7) // CHECK-NEXT: {{.*}}0: 01(00) // CHECK-NEXT: {{.*}}0: 01(bb) // CHECK-NEXT: {{.*}}0: 10 // CHECK-NEXT: {{.*}}0: 00 // CHECK-NEXT: {{.*}}0: 00 // CHECK-NEXT: {{.*}}0: 04(ff) free(alloc); }