| // RUN: %clang_dfsan -gmlt -mllvm -dfsan-track-origins=1 %s -o %t && \ |
| // RUN: %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| // |
| // Test origin tracking is accurate in terms of endianness. |
| |
| #include <sanitizer/dfsan_interface.h> |
| |
| typedef uint64_t FULL_TYPE; |
| typedef uint32_t HALF_TYPE; |
| |
| __attribute__((noinline)) FULL_TYPE foo(FULL_TYPE a, FULL_TYPE b) { |
| return a + b; |
| } |
| |
| int main(int argc, char *argv[]) { |
| FULL_TYPE a = 1; |
| FULL_TYPE b = 10; |
| dfsan_set_label(4, (HALF_TYPE *)&a + 1, sizeof(HALF_TYPE)); |
| FULL_TYPE c = foo(a, b); |
| dfsan_print_origin_trace(&c, NULL); |
| dfsan_print_origin_trace((HALF_TYPE *)&c + 1, NULL); |
| } |
| |
| // CHECK: Taint value 0x4 {{.*}} origin tracking () |
| // CHECK: Origin value: {{.*}}, Taint value was stored to memory at |
| // CHECK: #0 {{.*}} in main {{.*}}origin_endianness.c:[[@LINE-7]] |
| |
| // CHECK: Origin value: {{.*}}, Taint value was created at |
| // CHECK: #0 {{.*}} in main {{.*}}origin_endianness.c:[[@LINE-11]] |
| |
| // CHECK: Taint value 0x4 {{.*}} origin tracking () |
| // CHECK: Origin value: {{.*}}, Taint value was stored to memory at |
| // CHECK: #0 {{.*}} in main {{.*}}origin_endianness.c:[[@LINE-14]] |
| |
| // CHECK: Origin value: {{.*}}, Taint value was created at |
| // CHECK: #0 {{.*}} in main {{.*}}origin_endianness.c:[[@LINE-18]] |
