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Atmosphere/exosphere/loader_stub/source/secmon_loader_main.cpp
2020-06-14 22:07:45 -07:00

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1.7 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/>.
*/
#include <exosphere.hpp>
#include "secmon_loader_uncompress.hpp"
#include "program_lz4.h"
#include "boot_code_lz4.h"
namespace ams::secmon::loader {
NORETURN void UncompressAndExecute() {
/* Uncompress the program image. */
Uncompress(secmon::MemoryRegionPhysicalTzramFullProgramImage.GetPointer(), secmon::MemoryRegionPhysicalTzramFullProgramImage.GetSize(), program_lz4, program_lz4_size);
/* Copy the boot image to the end of IRAM */
u8 *relocated_boot_code = secmon::MemoryRegionPhysicalIramBootCodeImage.GetEndPointer<u8>() - boot_code_lz4_size;
std::memcpy(relocated_boot_code, boot_code_lz4, boot_code_lz4_size);
/* Uncompress the boot image. */
Uncompress(secmon::MemoryRegionPhysicalIramBootCodeImage.GetPointer(), secmon::MemoryRegionPhysicalIramBootCodeImage.GetSize(), relocated_boot_code, boot_code_lz4_size);
/* Jump to the boot image. */
reinterpret_cast<void (*)()>(secmon::MemoryRegionPhysicalIramBootCodeImage.GetAddress())();
/* We will never reach this point. */
__builtin_unreachable();
}
}