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1// RUN: %clang_dfsan -gmlt -mllvm -dfsan-track-origins=2 %s -o %t && \2// RUN: %run %t > %t.out 2>&13// RUN: FileCheck %s < %t.out4 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(8, &a, sizeof(a));13 uint64_t c = foo(a, b);14 dfsan_print_origin_trace(&c, NULL);15}16 17// CHECK: Taint value 0x8 {{.*}} origin tracking ()18// CHECK: Origin value: {{.*}}, Taint value was stored to memory at19// CHECK: #0 {{.*}} in main {{.*}}origin_track_ld.c:[[@LINE-6]]20 21// CHECK: Origin value: {{.*}}, Taint value was stored to memory at22// 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 at26// CHECK: #0 {{.*}} in main {{.*}}origin_track_ld.c:[[@LINE-13]]27 28// CHECK: Origin value: {{.*}}, Taint value was created at29// CHECK: #0 {{.*}} in main {{.*}}origin_track_ld.c:[[@LINE-17]]30