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1// RUN: %clang_dfsan -gmlt -mllvm -dfsan-track-origins=1 %s -o %t && \2// RUN: %run %t >%t.out 2>&13// RUN: FileCheck %s < %t.out4//5// RUN: %clang_dfsan -gmlt -mllvm -dfsan-track-origins=1 -mllvm -dfsan-instrument-with-call-threshold=0 %s -o %t && \6// RUN: %run %t >%t.out 2>&17// RUN: FileCheck %s < %t.out8 9#include <sanitizer/dfsan_interface.h>10 11__attribute__((noinline)) uint64_t foo(uint64_t a, uint64_t b) { return a + b; }12 13int main(int argc, char *argv[]) {14 uint64_t a = 10;15 uint64_t b = 20;16 dfsan_add_label(4, &a, sizeof(a));17 dfsan_add_label(8, &a, sizeof(a));18 uint64_t c = foo(a, b);19 dfsan_print_origin_trace(&c, NULL);20 dfsan_print_origin_trace((int*)&c + 1, NULL);21}22 23// CHECK: Taint value 0xc {{.*}} origin tracking ()24// CHECK: Origin value: {{.*}}, Taint value was stored to memory at25// CHECK: #0 {{.*}} in main {{.*}}origin_add_label.c:[[@LINE-7]]26 27// CHECK: Origin value: {{.*}}, Taint value was created at28// CHECK: #0 {{.*}} in main {{.*}}origin_add_label.c:[[@LINE-11]]29 30// CHECK: Taint value 0xc {{.*}} origin tracking ()31// CHECK: Origin value: {{.*}}, Taint value was stored to memory at32// CHECK: #0 {{.*}} in main {{.*}}origin_add_label.c:[[@LINE-14]]33 34// CHECK: Origin value: {{.*}}, Taint value was created at35// CHECK: #0 {{.*}} in main {{.*}}origin_add_label.c:[[@LINE-18]]36