1 // RUN: %clang_dfsan -gmlt -DOFFSET=0 -mllvm -dfsan-track-origins=1 %s -o %t && \
2 // RUN: %run %t >%t.out 2>&1
3 // RUN: FileCheck %s --check-prefix=CHECK0 < %t.out
5 // RUN: %clang_dfsan -gmlt -DOFFSET=10 -mllvm -dfsan-track-origins=1 %s -o %t && \
6 // RUN: %run %t >%t.out 2>&1
7 // RUN: FileCheck %s --check-prefix=CHECK10 < %t.out
9 #include <sanitizer/dfsan_interface.h>
15 volatile int idx
= 30;
17 __attribute__((noinline
))
18 void fn_g(int a
, int b
) {
19 memset(&xx
[idx
], a
, sizeof(a
));
20 memset(&xx
[idx
+ 10], b
, sizeof(b
));
23 __attribute__((noinline
))
24 void fn_f(int a
, int b
) {
28 int main(int argc
, char *argv
[]) {
31 dfsan_set_label(8, (void *)&z1
, sizeof(z1
));
32 dfsan_set_label(16, (void *)&z2
, sizeof(z2
));
34 dfsan_print_origin_trace(&xx
[idx
+ OFFSET
], NULL
);
38 // CHECK0: Taint value 0x8 {{.*}} origin tracking ()
39 // CHECK0: Origin value: {{.*}}, Taint value was created at
41 // CHECK0: #0 {{.*}} in main {{.*}}origin_memset.c:[[@LINE-10]]
43 // CHECK10: Taint value 0x10 {{.*}} origin tracking ()
44 // CHECK10: Origin value: {{.*}}, Taint value was created at
46 // CHECK10: #0 {{.*}} in main {{.*}}origin_memset.c:[[@LINE-14]]