| // RUN: %clang -fPIC -shared -O2 -D_FORTIFY_SOURCE=2 -D_DSO %s -o %t.so | |
| // RUN: %clang_asan %s -o %t %t.so | |
| // RUN: not %run %t 2>&1 | FileCheck %s | |
| // REQUIRES: glibc-2.27 | |
| #ifdef _DSO | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <string.h> | |
| __attribute__((noinline)) int foo() { | |
| char *write_buffer = (char *)malloc(1); | |
| // CHECK: AddressSanitizer: heap-buffer-overflow | |
| snprintf(write_buffer, 4096, "%s_%s", "one", "two"); | |
| return write_buffer[0]; | |
| } | |
| #else | |
| extern int foo(); | |
| int main() { return foo(); } | |
| #endif |