1 // RUN: %clang -fPIC -shared -O2 -D_FORTIFY_SOURCE=2 -D_DSO %s -o %t.so 2 // RUN: %clang_asan %s -o %t %t.so 3 // RUN: not %run %t 2>&1 | FileCheck %s 4 // UNSUPPORTED: android 5 #ifdef _DSO 6 #include <stdio.h> 7 #include <stdlib.h> 8 #include <string.h> foo()9__attribute__((noinline)) int foo() { 10 char *write_buffer = (char *)malloc(1); 11 // CHECK: AddressSanitizer: heap-buffer-overflow 12 snprintf(write_buffer, 4096, "%s_%s", "one", "two"); 13 return write_buffer[0]; 14 } 15 #else 16 extern int foo(); main()17int main() { return foo(); } 18 #endif 19