Atmosphere/libraries/libmesosphere/include/mesosphere/kern_k_trace.hpp
2020-08-18 15:17:40 -07:00

57 lines
1.9 KiB
C++

/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <mesosphere/kern_common.hpp>
#include <mesosphere/kern_k_spin_lock.hpp>
namespace ams::kern {
#if defined(MESOSPHERE_BUILD_FOR_TRACING)
constexpr inline bool IsKTraceEnabled = true;
#else
constexpr inline bool IsKTraceEnabled = false;
#endif
constexpr inline size_t KTraceBufferSize = IsKTraceEnabled ? 16_MB : 0;
static_assert(IsKTraceEnabled || !IsKTraceEnabled);
class KTrace {
private:
static bool s_is_active;
public:
static void Initialize(KVirtualAddress address, size_t size);
static void Start();
static void Stop();
static ALWAYS_INLINE bool IsActive() { return s_is_active; }
};
}
#define MESOSPHERE_KTRACE_RESUME() \
({ \
if constexpr (::ams::kern::IsKTraceEnabled) { \
::ams::kern::KTrace::Start(); \
} \
})
#define MESOSPHERE_KTRACE_PAUSE() \
({ \
if constexpr (::ams::kern::IsKTraceEnabled) { \
::ams::kern::KTrace::Stop(); \
} \
})