60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
/*
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* This file is part of Luma3DS
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* Copyright (C) 2016-2018 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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#pragma once
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#include <3ds/svc.h>
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#include <3ds/result.h>
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#include "csvc.h"
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// For accessing physmem uncached (and directly)
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#define PA_PTR(addr) (void *)((u32)(addr) | 1 << 31)
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#ifndef PA_FROM_VA_PTR
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#define PA_FROM_VA_PTR(addr) PA_PTR(svcConvertVAToPA((const void *)(addr), false))
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#endif
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#define REG32(addr) (*(vu32 *)(PA_PTR(addr)))
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static inline u32 makeARMBranch(const void *src, const void *dst, bool link) // the macros for those are ugly and buggy
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{
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u32 instrBase = link ? 0xEB000000 : 0xEA000000;
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u32 off = (u32)((const u8 *)dst - ((const u8 *)src + 8)); // the PC is always two instructions ahead of the one being executed
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return instrBase | ((off >> 2) & 0xFFFFFF);
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}
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static inline void *decodeARMBranch(const void *src)
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{
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u32 instr = *(const u32 *)src;
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s32 off = (instr & 0xFFFFFF) << 2;
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off = (off << 6) >> 6; // sign extend
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return (void *)((const u8 *)src + 8 + off);
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}
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Result OpenProcessByName(const char *name, Handle *h);
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