dll_seh.cpp
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// RUN: %clang_cl_asan -Od %p/dll_host.cpp -Fe%t
//
// Check both -GS and -GS- builds:
// RUN: %clang_cl_asan -GS -LD -Od %s -Fe%t.dll
// RUN: %run %t %t.dll
//
// RUN: %clang_cl_asan -GS- -LD -Od %s -Fe%t.dll
// RUN: %run %t %t.dll
#include <windows.h>
#include <assert.h>
#include <stdio.h>
// Should just "#include <sanitizer/asan_interface.h>" when C++ exceptions are
// supported and we don't need to use CL.
extern "C" bool __asan_address_is_poisoned(void *p);
void ThrowAndCatch();
__declspec(noinline)
void Throw() {
int local, zero = 0;
fprintf(stderr, "Throw: %p\n", &local);
local = 5 / zero;
}
__declspec(noinline)
void ThrowAndCatch() {
int local;
__try {
Throw();
} __except(EXCEPTION_EXECUTE_HANDLER) {
fprintf(stderr, "__except: %p\n", &local);
}
}
extern "C" __declspec(dllexport)
int test_function() {
char x[32];
fprintf(stderr, "Before: %p poisoned: %d\n", &x,
__asan_address_is_poisoned(x + 32));
assert(__asan_address_is_poisoned(x + 32));
ThrowAndCatch();
fprintf(stderr, "After: %p poisoned: %d\n", &x,
__asan_address_is_poisoned(x + 32));
// FIXME: Invert this assertion once we fix
// https://code.google.com/p/address-sanitizer/issues/detail?id=258
assert(!__asan_address_is_poisoned(x + 32));
return 0;
}