mirror of
https://github.com/wiiu-env/FunctionPatcherModule.git
synced 2024-11-15 22:45:15 +01:00
381 lines
17 KiB
C++
381 lines
17 KiB
C++
#include <coreinit/dynload.h>
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#include <coreinit/cache.h>
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#include <coreinit/debug.h>
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#include <coreinit/memorymap.h>
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#include <kernel/kernel.h>
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#include "function_patcher.h"
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#include "logger.h"
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#include "CThread.h"
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#define DEBUG_LOG_DYN 0
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void writeDataAndFlushIC(CThread *thread, void *arg) {
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uint32_t *data = (uint32_t *) arg;
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uint16_t core = OSGetThreadAffinity(OSGetCurrentThread());
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DCFlushRange(data, sizeof(uint32_t) * 3);
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uint32_t replace_instruction = data[0];
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uint32_t physical_address = data[1];
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uint32_t effective_address = data[2];
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DCFlushRange(&replace_instruction, 4);
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DCFlushRange(&physical_address, 4);
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//DEBUG_FUNCTION_LINE("Write instruction %08X to %08X [%08X] on core %d", replace_instruction, effective_address, physical_address, core / 2);
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uint32_t replace_instruction_physical = (uint32_t) &replace_instruction;
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if (replace_instruction_physical < 0x00800000 || replace_instruction_physical >= 0x01000000) {
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replace_instruction_physical = OSEffectiveToPhysical(replace_instruction_physical);
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} else {
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replace_instruction_physical = replace_instruction_physical + 0x30800000 - 0x00800000;
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}
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KernelCopyData(physical_address, replace_instruction_physical, 4);
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ICInvalidateRange((void *) (effective_address), 4);
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}
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void FunctionPatcherPatchFunction(function_replacement_data_t *replacements, uint32_t size) {
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for (uint32_t i = 0; i < size; i++) {
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function_replacement_data_t *function_data = &replacements[i];
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if (function_data->VERSION != FUNCTION_REPLACEMENT_DATA_STRUCT_VERSION) {
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OSFatal("Failed to patch function. struct version mismatch");
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}
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/* Patch branches to it. */
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volatile uint32_t *space = function_data->replace_data;
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DEBUG_FUNCTION_LINE("Patching %s ...", function_data->function_name);
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if (function_data->library == LIBRARY_OTHER) {
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WHBLogWritef("Oh, using straight PA/VA\n");
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if (function_data->alreadyPatched == 1) {
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DEBUG_FUNCTION_LINE("Skipping %s, its already patched\n", function_data->function_name);
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continue;
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}
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} else {
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if (function_data->functionType == FUNCTION_PATCHER_STATIC_FUNCTION && function_data->alreadyPatched == 1) {
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if (isDynamicFunction((uint32_t) OSEffectiveToPhysical(function_data->realAddr))) {
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WHBLogWritef("INFO: The function %s is a dynamic function.\n", function_data->function_name);
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function_data->functionType = FUNCTION_PATCHER_DYNAMIC_FUNCTION;
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} else {
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WHBLogPrintf("Skipping %s, its already patched\n", function_data->function_name);
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continue;
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}
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}
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}
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uint32_t physical = function_data->physicalAddr;
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uint32_t repl_addr = (uint32_t) function_data->replaceAddr;
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uint32_t call_addr = (uint32_t) function_data->replaceCall;
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uint32_t real_addr = function_data->virtualAddr;
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if (function_data->library != LIBRARY_OTHER) {
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real_addr = getAddressOfFunction(function_data->function_name, function_data->library);
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}
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if (!real_addr) {
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WHBLogWritef("");
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DEBUG_FUNCTION_LINE("OSDynLoad_FindExport failed for %s", function_data->function_name);
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continue;
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}
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if (DEBUG_LOG_DYN) {
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DEBUG_FUNCTION_LINE("%s is located at %08X!", function_data->function_name, real_addr);
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}
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if (function_data->library != LIBRARY_OTHER) {
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physical = (uint32_t) OSEffectiveToPhysical(real_addr);
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}
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if (!physical) {
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WHBLogWritef("Error. Something is wrong with the physical address");
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continue;
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}
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if (DEBUG_LOG_DYN) {
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DEBUG_FUNCTION_LINE("%s physical is located at %08X!", function_data->function_name, physical);
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}
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*(volatile uint32_t *) (call_addr) = (uint32_t) (space);
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uint32_t targetAddr = (uint32_t) space;
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if (targetAddr < 0x00800000 || targetAddr >= 0x01000000) {
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targetAddr = (uint32_t) OSEffectiveToPhysical(targetAddr);
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} else {
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targetAddr = targetAddr + 0x30800000 - 0x00800000;
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}
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KernelCopyData(targetAddr, physical, 4);
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ICInvalidateRange((void *) (space), 4);
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DCFlushRange((void *) (space), 4);
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space++;
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// fill the restore instruction section
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function_data->realAddr = real_addr;
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function_data->restoreInstruction = space[-1];
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if (DEBUG_LOG_DYN) {
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DEBUG_FUNCTION_LINE("function_data->realAddr = %08X!", function_data->realAddr);
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DEBUG_FUNCTION_LINE("function_data->restoreInstruction = %08X!", function_data->restoreInstruction);
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}
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/*
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00808cfc 3d601234 lis r11 ,0x1234
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00808d00 616b5678 ori r11 ,r11 ,0x5678
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00808d04 7d6903a6 mtspr CTR ,r11
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00808d08 4e800420 bctr
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*/
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*space = 0x3d600000 | (((real_addr + 4) >> 16) & 0x0000FFFF); space++; // lis r11 ,0x1234
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*space = 0x616b0000 | ((real_addr + 4) & 0x0000ffff); space++; // ori r11 ,r11 ,0x5678
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*space = 0x7d6903a6; space++; // mtspr CTR ,r11
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*space = 0x4e800420; space++; // bctr
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//setting jump back
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uint32_t replace_instr = 0x48000002 | (repl_addr & 0x03FFFFFC);
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// If the jump is too big or we want only patch for certain processes we need a trampoline
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if (repl_addr > 0x03FFFFFC || function_data->targetProcess != FP_TARGET_PROCESS_ALL) {
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uint32_t repl_addr_test = (uint32_t) space;
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if (function_data->targetProcess != FP_TARGET_PROCESS_ALL) {
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// Only use patched function if OSGetUPID matches function_data->targetProcess
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*space = 0x3d600000 | (((uint32_t*) OSGetUPID)[0] & 0x0000FFFF); space++; // lis r11 ,0x0
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*space = 0x816b0000 | (((uint32_t*) OSGetUPID)[1] & 0x0000FFFF); space++; // lwz r11 ,0x0(r11)
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if(function_data->targetProcess == FP_TARGET_PROCESS_GAME_AND_MENU){
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*space = 0x2c0b0000 | FP_TARGET_PROCESS_WII_U_MENU; space++; // cmpwi r11 ,FP_TARGET_PROCESS_WII_U_MENU
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*space = 0x41820000 | 0x00000020; space++; // beq myfunc
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*space = 0x2c0b0000 | FP_TARGET_PROCESS_GAME; space++; // cmpwi r11 ,FP_TARGET_PROCESS_GAME
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*space = 0x41820000 | 0x00000018; space++; // beq myfunc
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} else {
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*space = 0x2c0b0000 | function_data->targetProcess; space++; // cmpwi r11 ,function_data->targetProcess
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*space = 0x41820000 | 0x00000018; space++; // beq myfunc
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}
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*space = 0x3d600000 | (((real_addr + 4) >> 16) & 0x0000FFFF); space++; // lis r11 ,(real_addr + 4)@hi
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*space = 0x616b0000 | ((real_addr + 4) & 0x0000ffff); space++; // ori r11 ,(real_addr + 4)@lo
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*space = 0x7d6903a6; space++; // mtspr CTR ,r11
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*space = function_data->restoreInstruction; space++; //
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*space = 0x4e800420; space++; // bctr
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}
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// myfunc:
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*space = 0x3d600000 | (((repl_addr) >> 16) & 0x0000FFFF); space++; // lis r11 ,repl_addr@hi
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*space = 0x616b0000 | ((repl_addr) & 0x0000ffff); space++; // ori r11 ,r11 ,repl_addr@lo
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*space = 0x7d6903a6; space++; // mtspr CTR ,r11
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*space = 0x4e800420; space++; // bctr
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// Make sure the trampoline itself is usable.
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if ((repl_addr_test & 0x03FFFFFC) != repl_addr_test) {
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OSFatal("Jump is impossible");
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}
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replace_instr = 0x48000002 | (repl_addr_test & 0x03FFFFFC);
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}
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if (space > &function_data->replace_data[FUNCTION_PATCHER_METHOD_STORE_SIZE]) {
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OSFatal("The replacement data is too long.");
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}
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DCFlushRange((void *) function_data->replace_data, FUNCTION_PATCHER_METHOD_STORE_SIZE * 4);
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ICInvalidateRange((void *) function_data->replace_data, FUNCTION_PATCHER_METHOD_STORE_SIZE * 4);
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uint32_t data[] = {
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replace_instr,
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physical,
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real_addr
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};
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CThread::runOnAllCores(writeDataAndFlushIC, data);
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function_data->alreadyPatched = 1;
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DEBUG_FUNCTION_LINE("done with patching %s!", function_data->function_name);
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}
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DEBUG_FUNCTION_LINE("Done with patching given functions!");
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}
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void FunctionPatcherRestoreFunctions(function_replacement_data_t *replacements, uint32_t size) {
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DEBUG_FUNCTION_LINE("Restoring given functions!");
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for (uint32_t i = 0; i < size; i++) {
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DEBUG_FUNCTION_LINE("Restoring %s... ", replacements[i].function_name);
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if (replacements[i].restoreInstruction == 0 || replacements[i].realAddr == 0) {
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DEBUG_FUNCTION_LINE("I dont have the information for the restore =( skip");
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continue;
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}
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uint32_t targetAddrPhys = (uint32_t) replacements[i].physicalAddr;
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if (replacements[i].library != LIBRARY_OTHER) {
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targetAddrPhys = (uint32_t) OSEffectiveToPhysical(replacements[i].realAddr);
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}
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if (isDynamicFunction(targetAddrPhys) &&
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// Other processes than the wii u menu and game one seem to keep their rpl's loaded.
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replacements[i].targetProcess != FP_TARGET_PROCESS_GAME_AND_MENU &&
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replacements[i].targetProcess != FP_TARGET_PROCESS_GAME &&
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replacements[i].targetProcess != FP_TARGET_PROCESS_WII_U_MENU
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) {
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WHBLogPrintf("Its a dynamic function. We don't need to restore it!", replacements[i].function_name);
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} else {
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if (DEBUG_LOG_DYN) {
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WHBLogPrintf("");
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DEBUG_FUNCTION_LINE("Restoring %08X to %08X [%08X]", (uint32_t) replacements[i].restoreInstruction, replacements[i].realAddr, targetAddrPhys);
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}
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uint32_t sourceAddr = (uint32_t) &replacements[i].restoreInstruction;
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uint32_t sourceAddrPhys = (uint32_t) OSEffectiveToPhysical(sourceAddr);
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// These hardcoded values should be replaced with something more dynamic.
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if (sourceAddrPhys == 0 && (sourceAddr >= 0x00800000 || sourceAddr < 0x01000000)) {
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sourceAddrPhys = sourceAddr + 0x30800000 - 0x00800000;
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}
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KernelCopyData(targetAddrPhys, sourceAddrPhys, 4);
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if (DEBUG_LOG_DYN) {
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WHBLogPrintf("");
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DEBUG_FUNCTION_LINE("ICInvalidateRange %08X", (void *) replacements[i].realAddr);
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}
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ICInvalidateRange((void *) replacements[i].realAddr, 4);
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WHBLogWritef("done\n");
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}
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replacements[i].alreadyPatched = 0; // In case a
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}
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DEBUG_FUNCTION_LINE("Done with restoring given functions!");
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}
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bool isDynamicFunction(uint32_t physicalAddress) {
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if ((physicalAddress & 0x80000000) == 0x80000000) {
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return 1;
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}
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return 0;
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}
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rpl_handling rpl_handles[] __attribute__((section(".data"))) = {
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{LIBRARY_AVM, "avm.rpl", 0},
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{LIBRARY_CAMERA, "camera.rpl", 0},
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{LIBRARY_COREINIT, "coreinit.rpl", 0},
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{LIBRARY_DC, "dc.rpl", 0},
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{LIBRARY_DMAE, "dmae.rpl", 0},
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{LIBRARY_DRMAPP, "drmapp.rpl", 0},
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{LIBRARY_ERREULA, "erreula.rpl", 0},
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{LIBRARY_GX2, "gx2.rpl", 0},
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{LIBRARY_H264, "h264.rpl", 0},
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{LIBRARY_LZMA920, "lzma920.rpl", 0},
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{LIBRARY_MIC, "mic.rpl", 0},
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{LIBRARY_NFC, "nfc.rpl", 0},
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{LIBRARY_NIO_PROF, "nio_prof.rpl", 0},
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{LIBRARY_NLIBCURL, "nlibcurl.rpl", 0},
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{LIBRARY_NLIBNSS, "nlibnss.rpl", 0},
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{LIBRARY_NLIBNSS2, "nlibnss2.rpl", 0},
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{LIBRARY_NN_AC, "nn_ac.rpl", 0},
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{LIBRARY_NN_ACP, "nn_acp.rpl", 0},
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{LIBRARY_NN_ACT, "nn_act.rpl", 0},
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{LIBRARY_NN_AOC, "nn_aoc.rpl", 0},
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{LIBRARY_NN_BOSS, "nn_boss.rpl", 0},
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{LIBRARY_NN_CCR, "nn_ccr.rpl", 0},
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{LIBRARY_NN_CMPT, "nn_cmpt.rpl", 0},
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{LIBRARY_NN_DLP, "nn_dlp.rpl", 0},
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{LIBRARY_NN_EC, "nn_ec.rpl", 0},
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{LIBRARY_NN_FP, "nn_fp.rpl", 0},
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{LIBRARY_NN_HAI, "nn_hai.rpl", 0},
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{LIBRARY_NN_HPAD, "nn_hpad.rpl", 0},
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{LIBRARY_NN_IDBE, "nn_idbe.rpl", 0},
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{LIBRARY_NN_NDM, "nn_ndm.rpl", 0},
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{LIBRARY_NN_NETS2, "nn_nets2.rpl", 0},
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{LIBRARY_NN_NFP, "nn_nfp.rpl", 0},
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{LIBRARY_NN_NIM, "nn_nim.rpl", 0},
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{LIBRARY_NN_OLV, "nn_olv.rpl", 0},
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{LIBRARY_NN_PDM, "nn_pdm.rpl", 0},
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{LIBRARY_NN_SAVE, "nn_save.rpl", 0},
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{LIBRARY_NN_SL, "nn_sl.rpl", 0},
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{LIBRARY_NN_SPM, "nn_spm.rpl", 0},
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{LIBRARY_NN_TEMP, "nn_temp.rpl", 0},
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{LIBRARY_NN_UDS, "nn_uds.rpl", 0},
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{LIBRARY_NN_VCTL, "nn_vctl.rpl", 0},
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{LIBRARY_NSYSCCR, "nsysccr.rpl", 0},
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{LIBRARY_NSYSHID, "nsyshid.rpl", 0},
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{LIBRARY_NSYSKBD, "nsyskbd.rpl", 0},
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{LIBRARY_NSYSNET, "nsysnet.rpl", 0},
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{LIBRARY_NSYSUHS, "nsysuhs.rpl", 0},
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{LIBRARY_NSYSUVD, "nsysuvd.rpl", 0},
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{LIBRARY_NTAG, "ntag.rpl", 0},
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{LIBRARY_PADSCORE, "padscore.rpl", 0},
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{LIBRARY_PROC_UI, "proc_ui.rpl", 0},
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{LIBRARY_SNDCORE2, "sndcore2.rpl", 0},
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{LIBRARY_SNDUSER2, "snduser2.rpl", 0},
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{LIBRARY_SND_CORE, "snd_core.rpl", 0},
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{LIBRARY_SND_USER, "snd_user.rpl", 0},
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{LIBRARY_SWKBD, "swkbd.rpl", 0},
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{LIBRARY_SYSAPP, "sysapp.rpl", 0},
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{LIBRARY_TCL, "tcl.rpl", 0},
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{LIBRARY_TVE, "tve.rpl", 0},
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{LIBRARY_UAC, "uac.rpl", 0},
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{LIBRARY_UAC_RPL, "uac_rpl.rpl", 0},
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{LIBRARY_USB_MIC, "usb_mic.rpl", 0},
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{LIBRARY_UVC, "uvc.rpl", 0},
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{LIBRARY_UVD, "uvd.rpl", 0},
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{LIBRARY_VPAD, "vpad.rpl", 0},
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{LIBRARY_VPADBASE, "vpadbase.rpl", 0},
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{LIBRARY_ZLIB125, "zlib125.rpl", 0}
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};
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uint32_t getAddressOfFunction(char *functionName, function_replacement_library_type_t library) {
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uint32_t real_addr = 0;
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OSDynLoad_Module rpl_handle = 0;
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int32_t rpl_handles_size = sizeof rpl_handles / sizeof rpl_handles[0];
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for (int32_t i = 0; i < rpl_handles_size; i++) {
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if (rpl_handles[i].library == library) {
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if (rpl_handles[i].handle == 0) {
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DEBUG_FUNCTION_LINE("Lets acquire handle for rpl: %s", rpl_handles[i].rplname);
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OSDynLoad_Acquire((char *) rpl_handles[i].rplname, &rpl_handles[i].handle);
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}
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if (rpl_handles[i].handle == 0) {
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WHBLogWritef("%s failed to acquire", rpl_handles[i].rplname);
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return 0;
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}
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rpl_handle = rpl_handles[i].handle;
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break;
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}
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}
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if (!rpl_handle) {
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DEBUG_FUNCTION_LINE("Failed to find the RPL handle for %s", functionName);
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return 0;
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}
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OSDynLoad_FindExport(rpl_handle, 0, functionName, reinterpret_cast<void **>(&real_addr));
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if (!real_addr) {
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DEBUG_FUNCTION_LINE("OSDynLoad_FindExport failed for %s", functionName);
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return 0;
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}
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if ((library == LIBRARY_NN_ACP) && (uint32_t) (*(volatile uint32_t *) (real_addr) & 0x48000002) == 0x48000000) {
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uint32_t address_diff = (uint32_t) (*(volatile uint32_t *) (real_addr) & 0x03FFFFFC);
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if ((address_diff & 0x03000000) == 0x03000000) {
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address_diff |= 0xFC000000;
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}
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real_addr += (int32_t) address_diff;
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if ((uint32_t) (*(volatile uint32_t *) (real_addr) & 0x48000002) == 0x48000000) {
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return 0;
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}
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}
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return real_addr;
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}
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void FunctionPatcherResetLibHandles() {
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int32_t rpl_handles_size = sizeof rpl_handles / sizeof rpl_handles[0];
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for (int32_t i = 0; i < rpl_handles_size; i++) {
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if (rpl_handles[i].handle != 0) {
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DEBUG_FUNCTION_LINE("Resetting handle for rpl: %s", rpl_handles[i].rplname);
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}
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rpl_handles[i].handle = 0;
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// Release handle?
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}
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}
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