flags.c revision 2d1fdb26e458c4ddc04155c1d421bced3ba90cd0 
1// RUN: %clang_dfsan -m64 %s -fsanitize-blacklist=%S/Inputs/flags_abilist.txt -mllvm -dfsan-debug-nonzero-labels -o %t && %run %t 2>&1 | FileCheck %s
2// RUN: %clang_dfsan -m64 %s -fsanitize-blacklist=%S/Inputs/flags_abilist.txt -mllvm -dfsan-debug-nonzero-labels -o %t && DFSAN_OPTIONS=warn_unimplemented=0 %run %t 2>&1 | count 0
3// RUN: %clang_dfsan -m64 %s -fsanitize-blacklist=%S/Inputs/flags_abilist.txt -mllvm -dfsan-debug-nonzero-labels -o %t && DFSAN_OPTIONS=warn_nonzero_labels=1 %run %t 2>&1 | FileCheck --check-prefix=CHECK-NONZERO %s
4
5// Tests that flags work correctly.
6
7#include <sanitizer/dfsan_interface.h>
8
9int f(int i) {
10  return i;
11}
12
13int main(void) {
14  int i = 1;
15  dfsan_label i_label = dfsan_create_label("i", 0);
16  dfsan_set_label(i_label, &i, sizeof(i));
17
18  // CHECK: WARNING: DataFlowSanitizer: call to uninstrumented function f
19  // CHECK-NOT: WARNING: DataFlowSanitizer: saw nonzero label
20  // CHECK-NONZERO: WARNING: DataFlowSanitizer: saw nonzero label
21  f(i);
22
23  return 0;
24}
25