wiiu-nanddumper-payload/ios_kernel/source/elf_patcher.h
2016-12-12 19:31:02 +01:00

59 lines
1.9 KiB
C

/***************************************************************************
* Copyright (C) 2016
* by Dimok
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any
* damages arising from the use of this software.
*
* Permission is granted to anyone to use this software for any
* purpose, including commercial applications, and to alter it and
* redistribute it freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you
* must not claim that you wrote the original software. If you use
* this software in a product, an acknowledgment in the product
* documentation would be appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and
* must not be misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
***************************************************************************/
#ifndef _ELF_PATCHER_H
#define _ELF_PATCHER_H
#include "types.h"
#define ARM_B(addr, func) (0xEA000000 | ((((u32)(func) - (u32)(addr) - 8) >> 2) & 0x00FFFFFF))
#define ARM_BL(addr, func) (0xEB000000 | ((((u32)(func) - (u32)(addr) - 8) >> 2) & 0x00FFFFFF))
typedef struct
{
u32 address;
void* data;
u32 size;
} patch_table_t;
void section_write(u32 ios_elf_start, u32 address, const void *data, u32 size);
void section_write_bss(u32 ios_elf_start, u32 address, u32 size);
static inline void section_write_word(u32 ios_elf_start, u32 address, u32 word)
{
section_write(ios_elf_start, address, &word, sizeof(word));
}
static inline void patch_table_entries(u32 ios_elf_start, const patch_table_t * patch_table, u32 patch_count)
{
u32 i;
for(i = 0; i < patch_count; i++)
{
section_write(ios_elf_start, patch_table[i].address, patch_table[i].data, patch_table[i].size);
}
}
#endif