| // RUN: %clang_dfsan -gmlt -DTEST64 -DALIGN=8 -mllvm -dfsan-track-origins=1 %s -o %t && \ |
| // RUN: %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| // |
| // RUN: %clang_dfsan -gmlt -DTEST32 -DALIGN=4 -mllvm -dfsan-track-origins=1 %s -o %t && \ |
| // RUN: %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| // |
| // RUN: %clang_dfsan -gmlt -DALIGN=2 -mllvm -dfsan-track-origins=1 %s -o %t && \ |
| // RUN: %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| // |
| // RUN: %clang_dfsan -gmlt -DTEST64 -DALIGN=4 -mllvm -dfsan-track-origins=1 %s -o %t && \ |
| // RUN: %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| // |
| // RUN: %clang_dfsan -gmlt -DTEST32 -DALIGN=2 -mllvm -dfsan-track-origins=1 %s -o %t && \ |
| // RUN: %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| // |
| // RUN: %clang_dfsan -gmlt -DALIGN=1 -mllvm -dfsan-track-origins=1 %s -o %t && \ |
| // RUN: %run %t >%t.out 2>&1 |
| // RUN: FileCheck %s < %t.out |
| // |
| // REQUIRES: x86_64-target-arch |
| // |
| // Test origin tracking is accurate in terms of partial store/load, and |
| // different aligments. Do not test alignments that are not power of 2. |
| // Compilers do not always allow this. |
| |
| #include <sanitizer/dfsan_interface.h> |
| |
| #ifdef TEST64 |
| typedef uint64_t FULL_TYPE; |
| typedef uint32_t HALF_TYPE; |
| #elif defined(TEST32) |
| typedef uint32_t FULL_TYPE; |
| typedef uint16_t HALF_TYPE; |
| #else |
| typedef uint16_t FULL_TYPE; |
| typedef uint8_t HALF_TYPE; |
| #endif |
| |
| __attribute__((noinline)) FULL_TYPE foo(FULL_TYPE a, FULL_TYPE b) { return a + b; } |
| |
| int main(int argc, char *argv[]) { |
| char x __attribute__((aligned(ALIGN))) = 1, y = 2; |
| dfsan_set_label(8, &x, sizeof(x)); |
| char z __attribute__((aligned(ALIGN))) = x + y; |
| dfsan_print_origin_trace(&z, NULL); |
| |
| FULL_TYPE a __attribute__((aligned(ALIGN))) = 1; |
| FULL_TYPE b = 10; |
| dfsan_set_label(4, (HALF_TYPE *)&a + 1, sizeof(HALF_TYPE)); |
| FULL_TYPE c __attribute__((aligned(ALIGN))) = foo(a, b); |
| dfsan_print_origin_trace(&c, NULL); |
| dfsan_print_origin_trace((HALF_TYPE *)&c + 1, NULL); |
| } |
| |
| // CHECK: Taint value 0x8 {{.*}} origin tracking () |
| // CHECK: Origin value: {{.*}}, Taint value was stored to memory at |
| // CHECK: #0 {{.*}} in main {{.*}}origin_ldst.c:[[@LINE-13]] |
| |
| // CHECK: Origin value: {{.*}}, Taint value was created at |
| // CHECK: #0 {{.*}} in main {{.*}}origin_ldst.c:[[@LINE-17]] |
| |
| // CHECK: Taint value 0x4 {{.*}} origin tracking () |
| // CHECK: Origin value: {{.*}}, Taint value was stored to memory at |
| // CHECK: #0 {{.*}} in main {{.*}}origin_ldst.c:[[@LINE-14]] |
| |
| // CHECK: Origin value: {{.*}}, Taint value was created at |
| // CHECK: #0 {{.*}} in main {{.*}}origin_ldst.c:[[@LINE-18]] |
| |
| // CHECK: Taint value 0x4 {{.*}} origin tracking () |
| // CHECK: Origin value: {{.*}}, Taint value was stored to memory at |
| // CHECK: #0 {{.*}} in main {{.*}}origin_ldst.c:[[@LINE-21]] |
| |
| // CHECK: Origin value: {{.*}}, Taint value was created at |
| // CHECK: #0 {{.*}} in main {{.*}}origin_ldst.c:[[@LINE-25]] |