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Atmosphere/fusee/program/source/fusee_crt0.cpp
2021-09-06 16:26:50 -07:00

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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/>.
*/
#include <exosphere.hpp>
#include "fusee_exception_handler.hpp"
extern "C" void __libc_init_array();
namespace ams::nxboot::crt0 {
namespace {
ALWAYS_INLINE void SetExceptionVector(u32 which, uintptr_t impl) {
reg::Write(secmon::MemoryRegionPhysicalDeviceExceptionVectors.GetAddress() + 0x200 + sizeof(u32) * which, static_cast<u32>(impl));
}
}
void Initialize() {
/* TODO: Collect timing information? */
/* Setup exception vectors. */
{
SetExceptionVector(0, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler0));
SetExceptionVector(1, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler1));
SetExceptionVector(2, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler2));
SetExceptionVector(3, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler3));
SetExceptionVector(4, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler4));
SetExceptionVector(5, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler5));
SetExceptionVector(6, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler6));
SetExceptionVector(7, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler7));
}
/* Call init array. */
__libc_init_array();
}
}