seh.cpp
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// Make sure that ASan works with SEH in both Clang and MSVC. MSVC uses a
// different EH personality depending on the -GS setting, so test both -GS+ and
// -GS-.
//
// RUN: cl -c %s -Fo%t.obj -DCOMPILE_SEH
// RUN: %clangxx_asan -o %t.exe %s %t.obj
// RUN: %run %t.exe
//
// RUN: cl -GS- -c %s -Fo%t.obj -DCOMPILE_SEH
// RUN: %clangxx_asan -o %t.exe %s %t.obj
// RUN: %run %t.exe
//
// RUN: %clang_cl_asan %s -DCOMPILE_SEH -Fe%t.exe
// RUN: %run %t.exe
#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();
#if defined(COMPILE_SEH)
__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);
}
}
#endif
#if defined(__clang__)
int main() {
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));
}
#endif