1 // RUN: %clang_dfsan %s -o %t 2 // RUN: not %run %t 2>&1 | FileCheck %s 3 // RUN: %run %t foo 4 // RUN: %clang_dfsan -mllvm -dfsan-args-abi %s -o %t 5 // RUN: not %run %t 2>&1 | FileCheck %s 6 // RUN: %run %t foo 7 8 #include <stdio.h> 9 10 int do_nothing(const char *format, ...) { 11 return 0; 12 } 13 14 int main(int argc, char **argv) { 15 int (*fp)(const char *, ...); 16 17 if (argc > 1) 18 fp = do_nothing; 19 else 20 fp = printf; 21 22 // CHECK: FATAL: DataFlowSanitizer: unsupported indirect call to vararg function printf 23 fp("hello %s\n", "world"); 24 } 25
