1// RUN: %clang_dfsan -gmlt -mllvm -dfsan-track-origins=2 %s -o %t && \
2// RUN: %run %t > %t.out 2>&1
3// RUN: FileCheck %s < %t.out
4
5#include <sanitizer/dfsan_interface.h>
6
7__attribute__((noinline)) uint64_t foo(uint64_t a, uint64_t b) { return a + b; }
8
9int main(int argc, char *argv[]) {
10 uint64_t a = 10;
11 uint64_t b = 20;
12 dfsan_set_label(label: 8, addr: &a, size: sizeof(a));
13 uint64_t c = foo(a, b);
14 dfsan_print_origin_trace(addr: &c, NULL);
15}
16
17// CHECK: Taint value 0x8 {{.*}} origin tracking ()
18// CHECK: Origin value: {{.*}}, Taint value was stored to memory at
19// CHECK: #0 {{.*}} in main {{.*}}origin_track_ld.c:[[@LINE-6]]
20
21// CHECK: Origin value: {{.*}}, Taint value was stored to memory at
22// CHECK: #0 {{.*}} in foo.dfsan {{.*}}origin_track_ld.c:[[@LINE-15]]
23// CHECK: #1 {{.*}} in main {{.*}}origin_track_ld.c:[[@LINE-10]]
24
25// CHECK: Origin value: {{.*}}, Taint value was stored to memory at
26// CHECK: #0 {{.*}} in main {{.*}}origin_track_ld.c:[[@LINE-13]]
27
28// CHECK: Origin value: {{.*}}, Taint value was created at
29// CHECK: #0 {{.*}} in main {{.*}}origin_track_ld.c:[[@LINE-17]]
30

source code of compiler-rt/test/dfsan/origin_track_ld.c