test_debug_x64.cpp

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//
// Bareflank Hypervisor
//
// Copyright (C) 2015 Assured Information Security, Inc.
// Author: Rian Quinn        <quinnr@ainfosec.com>
// Author: Brendan Kerrigan  <kerriganb@ainfosec.com>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

#include <test.h>
#include <intrinsics/debug_x64.h>

using namespace x64;

dr7::value_type g_dr7 = 0;

extern "C" uint64_t
__read_dr7(void) noexcept
{ return g_dr7; }

extern "C" void
__write_dr7(uint64_t val) noexcept
{ g_dr7 = val; }

void
intrinsics_ut::test_debug_x64_dr7()
{
    dr7::set(100U);
    this->expect_true(dr7::get() == 100UL);

    dr7::set(1000U);
    this->expect_true(dr7::get() == 1000UL);

    dr7::set(100UL);
    this->expect_true(dr7::get() == 100UL);

    dr7::set(1000UL);
    this->expect_true(dr7::get() == 1000UL);
}