/*
	This file is part of Fennix Kernel.

	Fennix Kernel is free software: you can redistribute it and/or
	modify it under the terms of the GNU General Public License as
	published by the Free Software Foundation, either version 3 of
	the License, or (at your option) any later version.

	Fennix Kernel 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 General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
*/

#ifndef __FENNIX_KERNEL_CXXABI_H__
#define __FENNIX_KERNEL_CXXABI_H__

#include <types.h>
#include <kexcept/unwind.h>
#include <typeinfo>

namespace __cxxabiv1
{
#define ATEXIT_MAX_FUNCS 128

	typedef unsigned uarch_t;

	struct atexit_func_entry_t
	{
		void (*destructor_func)(void *);
		void *obj_ptr;
		void *dso_handle;
	};

	struct __cxa_exception
	{
#ifdef __LP64__
		char __padding[8];
		uintptr_t referenceCount;
#endif
		std::type_info *exceptionType;
		void (*exceptionDestructor)(void *);
		std::terminate_handler unexpectedHandler;
		std::terminate_handler terminateHandler;
		__cxa_exception *nextException;
		int handlerCount;
#ifdef __arm__
		__cxa_exception *nextPropagatingException;
		int propagationCount;
#else
		int handlerSwitchValue;
		const unsigned char *actionRecord;
		const unsigned char *languageSpecificData;
		void *catchTemp;
		void *adjustedPtr;
#endif
#ifndef __LP64__
		uintptr_t referenceCount;
#endif
		_Unwind_Exception unwindHeader;
	};

	struct __cxa_dependent_exception
	{
#ifdef __LP64__
		char __padding[8];
		void *primaryException;
#endif
		std::type_info *exceptionType;
		void (*exceptionDestructor)(void *);
		std::unexpected_handler unexpectedHandler;
		std::terminate_handler terminateHandler;
		__cxa_exception *nextException;
		int handlerCount;
#ifdef __arm__
		_Unwind_Exception *nextCleanup;
		int cleanupCount;
#endif
		int handlerSwitchValue;
		const char *actionRecord;
		const char *languageSpecificData;
		void *catchTemp;
		void *adjustedPtr;
#ifndef __LP64__
		void *primaryException;
#endif
		_Unwind_Exception unwindHeader;
	};

	struct __cxa_eh_globals
	{
		__cxa_exception *caughtExceptions;
		unsigned int uncaughtExceptions;
	};

	enum ExceptionState
	{
		ES_None,
		ES_Caught,
		ES_Rethrown
	};
}

struct ExceptionInfo
{
	std::terminate_handler terminateHandler;
	std::unexpected_handler unexpectedHandler;
	_Unwind_Exception *exceptionObject;
	__cxxabiv1::ExceptionState state;
	__cxxabiv1::__cxa_eh_globals globals;
};

ExceptionInfo *GetExceptionInfo();

#endif // !__FENNIX_KERNEL_CXXABI_H__