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// RUN: %clang_cl_asan -O0 %p/dll_host.cc -Fe%t
// RUN: %clang_cl_asan -LD -O0 %s -Fe%t.dll
// RUN: not %run %t %t.dll 2>&1 | FileCheck %s
#include <stdio.h>
#include <string.h>
void call_memcpy(void* (*f)(void *, const void *, size_t),
void *a, const void *b, size_t c) {
f(a, b, c);
}
extern "C" __declspec(dllexport)
int test_function() {
char buff1[6] = "Hello", buff2[5];
call_memcpy(&memcpy, buff2, buff1, 5);
if (buff1[2] != buff2[2])
return 2;
printf("Initial test OK\n");
fflush(0);
// CHECK: Initial test OK
call_memcpy(&memcpy, buff2, buff1, 6);
// CHECK: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
// CHECK: WRITE of size 6 at [[ADDR]] thread T0
// CHECK-NEXT: __asan_{{.*}}memcpy
// CHECK-NEXT: call_memcpy
// CHECK-NEXT: test_function {{.*}}dll_intercept_memcpy_indirect.cc:[[@LINE-5]]
// CHECK: Address [[ADDR]] is located in stack of thread T0 at offset {{.*}} in frame
// CHECK-NEXT: test_function {{.*}}dll_intercept_memcpy_indirect.cc
// CHECK: 'buff2' <== Memory access at offset {{.*}} overflows this variable
return 0;
}
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