1 // RUN: %clangxx_asan -O0 -mllvm -asan-instrument-dynamic-allocas %s -o %t 2 // RUN: not %run %t 2>&1 | FileCheck %s 3 // 4 // REQUIRES: stable-runtime 5 6 #include <assert.h> 7 #include <stdint.h> 8 foo(int index,int len)9__attribute__((noinline)) void foo(int index, int len) { 10 if (index > len) { 11 char str[len]; //NOLINT 12 assert(!(reinterpret_cast<uintptr_t>(str) & 31L)); 13 str[index] = '1'; // BOOM 14 // CHECK: ERROR: AddressSanitizer: dynamic-stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] 15 // CHECK: WRITE of size 1 at [[ADDR]] thread T0 16 } 17 } 18 main(int argc,char ** argv)19int main(int argc, char **argv) { 20 foo(33, 10); 21 return 0; 22 } 23