1 // RUN: %clang_dfsan %s -fsanitize-ignorelist=%S/Inputs/flags_abilist.txt -DFORCE_ZERO_LABELS -o %t && %run %t 2 // RUN: %clang_dfsan %s -o %t && %run %t 3 4 #include <sanitizer/dfsan_interface.h> 5 6 #include <assert.h> 7 function_to_force_zero(int i,int * out)8int function_to_force_zero(int i, int* out) { 9 *out = i; 10 return i; 11 } 12 main(void)13int main(void) { 14 int i = 1; 15 dfsan_label i_label = 2; 16 dfsan_set_label(i_label, &i, sizeof(i)); 17 18 int out = 0; 19 int ret = function_to_force_zero(i, &out); 20 21 #ifdef FORCE_ZERO_LABELS 22 assert(dfsan_get_label(out) == 0); 23 assert(dfsan_get_label(ret) == 0); 24 #else 25 assert(dfsan_get_label(out) == i_label); 26 assert(dfsan_get_label(ret) == i_label); 27 #endif 28 29 return 0; 30 } 31