85 lines
2.5 KiB
C
85 lines
2.5 KiB
C
/*
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* This file is part of Luma3DS
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* Copyright (C) 2016-2020 Aurora Wright, TuxSH
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for 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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* Additional Terms 7.b and 7.c of GPLv3 apply to this file:
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* * Requiring preservation of specified reasonable legal notices or
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* author attributions in that material or in the Appropriate Legal
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* Notices displayed by works containing it.
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* * Prohibiting misrepresentation of the origin of that material,
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* or requiring that modified versions of such material be marked in
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* reasonable ways as different from the original version.
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*/
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#include "chainloader.h"
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#include "screen.h"
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void disableMpuAndJumpToEntrypoints(int argc, char **argv, void *arm11Entry, void *arm9Entry);
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#pragma GCC optimize (3)
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static void *xmemcpy(void *dst, const void *src, u32 len)
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{
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const u8 *src8 = (const u8 *)src;
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u8 *dst8 = (u8 *)dst;
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for (u32 i = 0; i < len; i++) {
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dst8[i] = src8[i];
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}
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return dst;
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}
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static void doLaunchFirm(Firm *firm, int argc, char **argv)
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{
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//Copy FIRM sections to respective memory locations
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for(u32 sectionNum = 0; sectionNum < 4; sectionNum++)
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xmemcpy(firm->section[sectionNum].address, (u8 *)firm + firm->section[sectionNum].offset, firm->section[sectionNum].size);
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disableMpuAndJumpToEntrypoints(argc, argv, firm->arm9Entry, firm->arm11Entry);
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__builtin_unreachable();
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}
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void chainloader_main(int argc, char **argv, Firm *firm)
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{
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char *argvPassed[2],
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absPath[24 + 255];
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struct fb fbs[2];
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if(argc > 0)
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{
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u32 i;
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for(i = 0; i < sizeof(absPath) - 1 && argv[0][i] != 0; i++)
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absPath[i] = argv[0][i];
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absPath[i] = 0;
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argvPassed[0] = (char *)absPath;
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}
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if(argc == 2)
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{
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struct fb *fbsrc = (struct fb *)argv[1];
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fbs[0] = fbsrc[0];
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fbs[1] = fbsrc[1];
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argvPassed[1] = (char *)&fbs;
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}
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doLaunchFirm(firm, argc, argvPassed);
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}
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