WiiUPluginLoaderBackend/source/utils/function_patcher.h

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/****************************************************************************
* Copyright (C) 2016-2020 Maschell
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* With code from chadderz and dimok
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that 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/>.
****************************************************************************/
#ifndef _FUNCTION_HOOKS_H_
#define _FUNCTION_HOOKS_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <coreinit/dynload.h>
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/* Macros for libs */
#define LIB_CORE_INIT 0
#define LIB_NSYSNET 1
#define LIB_GX2 2
#define LIB_AOC 3
#define LIB_AX 4
#define LIB_FS 5
#define LIB_OS 6
#define LIB_PADSCORE 7
#define LIB_SOCKET 8
#define LIB_SYS 9
#define LIB_VPAD 10
#define LIB_NN_ACP 11
#define LIB_SYSHID 12
#define LIB_VPADBASE 13
#define LIB_AX_OLD 14
#define LIB_PROC_UI 15
#define LIB_NTAG 16
#define LIB_NFP 17
#define LIB_SAVE 18
#define LIB_ACT 19
#define LIB_NIM 20
// functions types
#define STATIC_FUNCTION 0
#define DYNAMIC_FUNCTION 1
//Orignal code by Chadderz.
#define DECL(res, name, ...) \
res (* real_ ## name)(__VA_ARGS__) __attribute__((section(".data"))); \
res my_ ## name(__VA_ARGS__)
#define FUNCTION_PATCHER_METHOD_STORE_SIZE 7
typedef struct {
const uint32_t replaceAddr;
const uint32_t replaceCall;
const uint32_t library;
const char functionName[50];
uint32_t realAddr;
uint32_t restoreInstruction;
uint8_t functionType;
uint8_t alreadyPatched;
} hooks_magic_t;
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void PatchInvidualMethodHooks(hooks_magic_t hook_information[], int32_t hook_information_size, volatile uint32_t dynamic_method_calls[]);
void RestoreInvidualInstructions(hooks_magic_t hook_information[], int32_t hook_information_size);
uint32_t GetAddressOfFunction(const char *functionName, uint32_t library);
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int32_t isDynamicFunction(uint32_t physicalAddress);
void resetLibs();
//Orignal code by Chadderz.
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#define MAKE_MAGIC(x, lib, functionType) { (uint32_t) my_ ## x, (uint32_t) &real_ ## x, lib, # x,0,0,functionType,0}
#define MAKE_MAGIC_NAME(x, y, lib, functionType) { (uint32_t) my_ ## x, (uint32_t) &real_ ## x, lib, # y,0,0,functionType,0}
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#ifdef __cplusplus
}
#endif
#endif /* _FS_H */