Leahnaya/WiiUPluginLoaderBackend
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Make sure to use plugins only in proccess 2 and 15.

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This commit is contained in:
Maschell
2020-05-28 20:49:52 +02:00
parent fd6bed070c
commit 8050bb7e44
5 changed files with 75 additions and 63 deletions
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65
source/patcher/function_patcher.cpp
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@@ -22,6 +22,7 @@
#include <malloc.h>
#include <string.h>
#include <wups.h>
#include <coreinit/debug.h>
#include "function_patcher.h"
#include <utils/logger.h>
@@ -112,8 +113,8 @@ void new_PatchInvidualMethodHooks(plugin_info_t *plugin_data) {
int32_t method_hooks_count = plugin_data->number_used_functions;
uint32_t skip_instr = 1;
uint32_t my_instr_len = 6;
uint32_t instr_len = my_instr_len + skip_instr + 6;
uint32_t my_instr_len = 4;
uint32_t instr_len = my_instr_len + skip_instr + 15;
uint32_t flush_len = 4 * instr_len;
for (int32_t i = 0; i < method_hooks_count; i++) {
replacement_data_function_t *function_data = &plugin_data->functions[i];
@@ -203,41 +204,37 @@ void new_PatchInvidualMethodHooks(plugin_info_t *plugin_data) {
WHBLogWritef("Error. Can't save %s for restoring!\n", function_data->function_name);
}
//adding jump to real function thx @ dimok for the assembler code
/*
90 61 ff e0 stw r3,-32(r1)
3c 60 12 34 lis r3,4660
60 63 56 78 ori r3,r3,22136
7c 69 03 a6 mtctr r3
80 61 ff e0 lwz r3,-32(r1)
4e 80 04 20 bctr*/
*space = 0x9061FFE0;
space++;
*space = 0x3C600000 | (((real_addr + (skip_instr * 4)) >> 16) & 0x0000FFFF); // lis r3, real_addr@h
space++;
*space = 0x60630000 | ((real_addr + (skip_instr * 4)) & 0x0000ffff); // ori r3, r3, real_addr@l
space++;
*space = 0x7C6903A6; // mtctr r3
space++;
*space = 0x8061FFE0; // lwz r3,-32(r1)
space++;
*space = 0x4E800420; // bctr
space++;
00808cfc 3d601234 lis r11 ,0x1234
00808d00 616b5678 ori r11 ,r11 ,0x5678
00808d04 7d6903a6 mtspr CTR ,r11
00808d08 4e800420 bctr
*/
uint32_t ptr = (uint32_t)space;
*space = 0x3d600000 | (((real_addr + (skip_instr * 4)) >> 16) & 0x0000FFFF); space++; // lis r11 ,0x1234
*space = 0x616b0000 | ((real_addr + (skip_instr * 4)) & 0x0000ffff); space++; // ori r11 ,r11 ,0x5678
*space = 0x7d6903a6; space++; // mtspr CTR ,r11
*space = 0x4e800420; space++;
// Only use patched function if OSGetUPID is 2 (wii u menu) or 15 (game)
uint32_t repl_addr_test = (uint32_t) space;
*space = 0x9061FFE0;
space++;
*space = 0x3C600000 | (((repl_addr) >> 16) & 0x0000FFFF); // lis r3, repl_addr@h
space++;
*space = 0x60630000 | ((repl_addr) & 0x0000ffff); // ori r3, r3, repl_addr@l
space++;
*space = 0x7C6903A6; // mtctr r3
space++;
*space = 0x8061FFE0; // lwz r3,-32(r1)
space++;
*space = 0x4E800420; // bctr
space++;
*space = 0x3d600000 | (((uint32_t*) OSGetUPID)[0] & 0x0000FFFF); space++; // lis r11 ,0x0
*space = 0x816b0000 | (((uint32_t*) OSGetUPID)[1] & 0x0000FFFF); space++; // lwz r11 ,0x0(r11)
*space = 0x2c0b0000 | 0x00000002; space++; // cmpwi r11 ,0x2
*space = 0x41820000 | 0x00000020; space++; // beq myfunc
*space = 0x2c0b0000 | 0x0000000F; space++; // cmpwi r11 ,0xF
*space = 0x41820000 | 0x00000018; space++; // beq myfunc
*space = 0x3d600000 | (((real_addr + (skip_instr * 4)) >> 16) & 0x0000FFFF); space++; // lis r11 ,0x1234
*space = 0x616b0000 | ((real_addr + (skip_instr * 4)) & 0x0000ffff); space++; // ori r11 ,r11 ,0x5678
*space = 0x7d6903a6; space++; // mtspr CTR ,r11
*space = function_data->restoreInstruction; space++; //
*space = 0x4e800420; space++; // bctr
// myfunc:
*space = 0x3d600000 | (((repl_addr) >> 16) & 0x0000FFFF); space++; // lis r11 ,0x1234
*space = 0x616b0000 | ((repl_addr) & 0x0000ffff); space++; // ori r11 ,r11 ,0x5678
*space = 0x7d6903a6; space++; // mtspr CTR ,r11
*space = 0x4e800420; space++; // bctr
DCFlushRange((void *) (((uint32_t) space) - flush_len), flush_len);
ICInvalidateRange((void *) (((uint32_t) space) - flush_len), flush_len);