compiler-rt/test/dfsan/origin_add_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 #include <sanitizer/dfsan_interface.h>
  10
  11 __attribute__((noinline)) uint64_t foo(uint64_t a, uint64_t b) { return a + b; }
  12
  13 int 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 at
  25 // CHECK: #0 {{.*}} in main {{.*}}origin_add_label.c:[[@LINE-7]]
  26
  27 // CHECK: Origin value: {{.*}}, Taint value was created at
  28 // 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 at
  32 // CHECK: #0 {{.*}} in main {{.*}}origin_add_label.c:[[@LINE-14]]
  33
  34 // CHECK: Origin value: {{.*}}, Taint value was created at
  35 // CHECK: #0 {{.*}} in main {{.*}}origin_add_label.c:[[@LINE-18]]