28 lines · cpp
1// Check that memset() call from a shared library gets intercepted.2// RUN: mkdir -p %t.dir && cd %t.dir3// RUN: %clangxx_asan -O0 %s -DSHARED_LIB \4// RUN: -shared -o %dynamiclib -fPIC %ld_flags_rpath_so5// RUN: %clangxx_asan -O0 %s -o %t.dir/EXE %ld_flags_rpath_exe && \6// RUN: not %run %t.dir/EXE 2>&1 | FileCheck %s7 8#include <stdio.h>9#include <string.h>10 11#if defined(SHARED_LIB)12extern "C"13void my_memset(void *p, size_t sz) {14 memset(p, 0, sz);15}16#else17extern "C" void my_memset(void *p, size_t sz);18 19int main(int argc, char *argv[]) {20 char buf[10];21 my_memset(buf, 11);22 // CHECK: {{.*ERROR: AddressSanitizer: stack-buffer-overflow}}23 // CHECK: {{WRITE of size 11 at 0x.* thread T0}}24 // CHECK: {{0x.* in my_memset .*interception-in-shared-lib-test.cpp:}}[[@LINE-10]]25 return 0;26}27#endif28