compiler-rt/test/dfsan/origin_set_label.c

   1 // RUN: %clang_dfsan -gmlt -mllvm -dfsan-track-origins=1 %s -o %t && \
   2 // RUN:     %run %t >%t.out 2>&1
   3 // RUN: FileCheck %s < %t.out
   4 //
   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>&1
   7 // RUN: FileCheck %s < %t.out
   8 //
   9 // REQUIRES: x86_64-target-arch
  10
  11 #include <sanitizer/dfsan_interface.h>
  12
  13 __attribute__((noinline)) uint64_t foo(uint64_t a, uint64_t b) { return a + b; }
  14
  15 int main(int argc, char *argv[]) {
  16   uint64_t a = 10;
  17   uint64_t b = 20;
  18   dfsan_set_label(8, &a, sizeof(a));
  19   uint64_t c = foo(a, b);
  20   dfsan_print_origin_trace(&c, NULL);
  21   dfsan_print_origin_trace((int*)(&c) + 1, NULL);
  22 }
  23
  24 // CHECK: Taint value 0x8 {{.*}} origin tracking ()
  25 // CHECK: Origin value: {{.*}}, Taint value was stored to memory at
  26 // CHECK: #0 {{.*}} in main {{.*}}origin_set_label.c:[[@LINE-7]]
  27
  28 // CHECK: Origin value: {{.*}}, Taint value was created at
  29 // CHECK: #0 {{.*}} in main {{.*}}origin_set_label.c:[[@LINE-11]]
  30
  31 // CHECK: Taint value 0x8 {{.*}} origin tracking ()
  32 // CHECK: Origin value: {{.*}}, Taint value was stored to memory at
  33 // CHECK: #0 {{.*}} in main {{.*}}origin_set_label.c:[[@LINE-14]]
  34
  35 // CHECK: Origin value: {{.*}}, Taint value was created at
  36 // CHECK: #0 {{.*}} in main {{.*}}origin_set_label.c:[[@LINE-18]]