1 // RUN: %clangxx_asan -O0 -mllvm -asan-instrument-dynamic-allocas %s -o %t 2 // RUN: not %run %t 2>&1 | FileCheck %s 3 // 4 5 #include <assert.h> 6 #include <stdint.h> 7 foo(int index,int len)8__attribute__((noinline)) void foo(int index, int len) { 9 volatile char str[len] __attribute__((aligned(32))); 10 assert(!(reinterpret_cast<uintptr_t>(str) & 31L)); 11 str[index] = '1'; // BOOM 12 // CHECK: ERROR: AddressSanitizer: dynamic-stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]] 13 // CHECK: WRITE of size 1 at [[ADDR]] thread T0 14 } 15 main(int argc,char ** argv)16int main(int argc, char **argv) { 17 foo(33, 10); 18 return 0; 19 } 20