1 // Make sure everything works even if the main module doesn't have any stack 2 // variables, thus doesn't explicitly reference any symbol exported by the 3 // runtime thunk. 4 // 5 // RUN: %clang_cl_asan -LD -O0 -DDLL1 %s -Fe%t1.dll 6 // RUN: %clang_cl_asan -LD -O0 -DDLL2 %s -Fe%t2.dll 7 // RUN: %clang_cl_asan -O0 -DEXE %s %t1.lib %t2.lib -Fe%t 8 // RUN: not %run %t 2>&1 | FileCheck %s 9 10 #include <malloc.h> 11 #include <string.h> 12 13 extern "C" { 14 #if defined(EXE) 15 __declspec(dllimport) void foo1(); 16 __declspec(dllimport) void foo2(); 17 18 int main() { 19 foo1(); 20 foo2(); 21 } 22 #elif defined(DLL1) 23 __declspec(dllexport) void foo1() {} 24 #elif defined(DLL2) 25 __attribute__((noinline)) 26 static void NullDeref(int *ptr) { 27 // CHECK: ERROR: AddressSanitizer: access-violation on unknown address 28 // CHECK: {{0x0*000.. .*pc 0x.*}} 29 ptr[10]++; // BOOM 30 } 31 32 __declspec(dllexport) void foo2() { 33 NullDeref((int*)0); 34 // CHECK: {{ #1 0x.* in foo2.*null_deref_multiple_dlls.cc:}}[[@LINE-1]] 35 // CHECK: AddressSanitizer can not provide additional info. 36 } 37 #else 38 # error oops! 39 #endif 40 } 41
