mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-11-23 20:32:10 +00:00
53 lines
2.1 KiB
C++
53 lines
2.1 KiB
C++
/*
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <exosphere.hpp>
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#include "fusee_exception_handler.hpp"
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extern "C" void __libc_init_array();
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namespace ams::nxboot::crt0 {
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namespace {
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ALWAYS_INLINE void SetExceptionVector(u32 which, uintptr_t impl) {
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reg::Write(secmon::MemoryRegionPhysicalDeviceExceptionVectors.GetAddress() + 0x200 + sizeof(u32) * which, static_cast<u32>(impl));
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}
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}
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void Initialize(uintptr_t bss_start, uintptr_t bss_end) {
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/* TODO: Collect timing information? */
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/* Setup exception vectors. */
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{
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SetExceptionVector(0, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler0));
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SetExceptionVector(1, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler1));
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SetExceptionVector(2, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler2));
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SetExceptionVector(3, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler3));
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SetExceptionVector(4, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler4));
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SetExceptionVector(5, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler5));
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SetExceptionVector(6, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler6));
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SetExceptionVector(7, reinterpret_cast<uintptr_t>(::ams::nxboot::ExceptionHandler7));
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}
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/* Clear bss. */
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std::memset(reinterpret_cast<void *>(bss_start), 0, bss_end - bss_start);
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/* Call init array. */
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__libc_init_array();
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}
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}
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