35 lines · cpp
1// RUN: %clang_cl_asan %Od %Oy- %p/dll_host.cpp %Fe%t2// RUN: %clang_cl_asan %if !MSVC %{ -Wno-fortify-source %} %Oy- %LD %Od %s %Fe%t.dll3// RUN: not %run %t %t.dll 2>&1 | FileCheck %s4 5// Test that it works correctly even with ICF enabled.6// RUN: %clang_cl_asan %if !MSVC %{ -Wno-fortify-source %} %Oy- %LD %Od %s %Fe%t.dll \7// RUN: %if target={{.*-windows-gnu}} %{ -Wl,--gc-sections,--icf=all %} \8// RUN: %else %{ -link /OPT:REF /OPT:ICF %}9// RUN: not %run %t %t.dll 2>&1 | FileCheck %s10 11#include <stdio.h>12#include <string.h>13 14extern "C" __declspec(dllexport)15int test_function() {16 char buff[5] = "aaaa";17 18 memset(buff, 'b', 5);19 if (buff[2] != 'b')20 return 2;21 printf("Initial test OK\n");22 fflush(0);23// CHECK: Initial test OK24 25 memset(buff, 'c', 6);26// CHECK: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]27// CHECK: WRITE of size 6 at [[ADDR]] thread T028// CHECK-NEXT: __asan_memset29// CHECK-NEXT: test_function {{.*}}dll_intercept_memset.cpp:[[@LINE-4]]30// CHECK: Address [[ADDR]] is located in stack of thread T0 at offset {{.*}} in frame31// CHECK-NEXT: test_function {{.*}}dll_intercept_memset.cpp32// CHECK: 'buff'{{.*}} <== Memory access at offset {{.*}} overflows this variable33 return 0;34}35