WUMSLoader/source/module/ModuleDataPersistence.cpp

180 lines
7.9 KiB
C++

#include <coreinit/cache.h>
#include "ModuleDataPersistence.h"
#include "DynamicLinkingHelper.h"
bool ModuleDataPersistence::saveModuleData(module_information_t *moduleInformation, const ModuleData &module) {
int32_t module_count = moduleInformation->number_used_modules;
if (module_count >= MAXIMUM_MODULES) {
DEBUG_FUNCTION_LINE("Reached maximum module count of %d", MAXIMUM_MODULES);
return false;
}
// Copy data to global struct.
module_information_single_t *module_data = &(moduleInformation->module_data[module_count]);
DEBUG_FUNCTION_LINE("Saving relocation data for module at %08X", module.getEntrypoint());
// Relocation
std::vector<RelocationData> relocationData = module.getRelocationDataList();
for (auto const &reloc: relocationData) {
if (!DynamicLinkingHelper::addRelocationEntry(&(moduleInformation->linking_data), module_data->linking_entries,
DYN_LINK_RELOCATION_LIST_LENGTH, reloc)) {
DEBUG_FUNCTION_LINE("Failed to add relocation entry\n");
return false;
}
}
std::vector<ExportData> exportData = module.getExportDataList();
for (auto const &curExport: exportData) {
bool found = false;
for (auto &export_entry: module_data->export_entries) {
if (export_entry.address == 0) {
export_entry.type = curExport.getType();
export_entry.name[0] = '\0';
strncat(export_entry.name, curExport.getName().c_str(), sizeof(export_entry.name) - 1);
export_entry.address = (uint32_t) curExport.getAddress();
found = true;
break;
}
}
if (!found) {
DEBUG_FUNCTION_LINE("Failed to found enough exports slots");
break;
}
}
std::vector<HookData> hookData = module.getHookDataList();
for (auto const &curHook: hookData) {
bool found = false;
for (auto &hook_entry: module_data->hook_entries) {
if (hook_entry.target == 0) {
hook_entry.type = curHook.getType();
hook_entry.target = (uint32_t) curHook.getTarget();
found = true;
break;
}
}
if (!found) {
DEBUG_FUNCTION_LINE("Failed to found enough hook slots");
break;
}
}
strncpy(module_data->module_export_name, module.getExportName().c_str(), MAXIMUM_EXPORT_MODULE_NAME_LENGTH);
uint32_t entryCount = module.getFunctionSymbolDataList().size();
if (entryCount > 0) {
auto ptr = &moduleInformation->function_symbols[moduleInformation->number_used_function_symbols];
module_data->function_symbol_entries = ptr;
uint32_t sym_offset = 0;
for (auto &curFuncSym: module.getFunctionSymbolDataList()) {
if (moduleInformation->number_used_function_symbols >= FUNCTION_SYMBOL_LIST_LENGTH) {
DEBUG_FUNCTION_LINE("Function symbol list is full");
break;
}
module_data->function_symbol_entries[sym_offset].address = curFuncSym.getAddress();
module_data->function_symbol_entries[sym_offset].name = (char *) curFuncSym.getName();
module_data->function_symbol_entries[sym_offset].size = curFuncSym.getSize();
sym_offset++;
moduleInformation->number_used_function_symbols++;
}
module_data->number_used_function_symbols = sym_offset;
} else {
module_data->function_symbol_entries = nullptr;
module_data->number_used_function_symbols = 0;
}
module_data->bssAddr = module.getBSSAddr();
module_data->bssSize = module.getBSSSize();
module_data->sbssAddr = module.getSBSSAddr();
module_data->sbssSize = module.getSBSSSize();
module_data->startAddress = module.getStartAddress();
module_data->endAddress = module.getEndAddress();
module_data->entrypoint = module.getEntrypoint();
module_data->skipEntrypoint = module.isSkipEntrypoint();
module_data->initBeforeRelocationDoneHook = module.isInitBeforeRelocationDoneHook();
moduleInformation->number_used_modules++;
DCFlushRange((void *) moduleInformation, sizeof(module_information_t));
ICInvalidateRange((void *) moduleInformation, sizeof(module_information_t));
return true;
}
std::vector<ModuleData> ModuleDataPersistence::loadModuleData(module_information_t *moduleInformation) {
std::vector<ModuleData> result;
if (moduleInformation == nullptr) {
DEBUG_FUNCTION_LINE("moduleInformation == NULL\n");
return result;
}
DCFlushRange((void *) moduleInformation, sizeof(module_information_t));
ICInvalidateRange((void *) moduleInformation, sizeof(module_information_t));
int32_t module_count = moduleInformation->number_used_modules;
if (module_count > MAXIMUM_MODULES) {
DEBUG_FUNCTION_LINE("moduleInformation->module_count was bigger then allowed. %d > %d. Limiting to %d\n", module_count, MAXIMUM_MODULES, MAXIMUM_MODULES);
module_count = MAXIMUM_MODULES;
}
for (int32_t i = 0; i < module_count; i++) {
// Copy data from struct.
module_information_single_t *module_data = &(moduleInformation->module_data[i]);
ModuleData moduleData;
moduleData.setBSSLocation(module_data->bssAddr, module_data->bssSize);
moduleData.setSBSSLocation(module_data->sbssAddr, module_data->sbssSize);
moduleData.setEntrypoint(module_data->entrypoint);
moduleData.setStartAddress(module_data->startAddress);
moduleData.setEndAddress(module_data->endAddress);
moduleData.setExportName(module_data->module_export_name);
moduleData.setSkipEntrypoint(module_data->skipEntrypoint);
moduleData.setInitBeforeRelocationDoneHook(module_data->initBeforeRelocationDoneHook);
for (auto &export_entrie: module_data->export_entries) {
export_data_t *export_entry = &export_entrie;
if (export_entry->address == 0) {
continue;
}
moduleData.addExportData(ExportData(static_cast<wums_entry_type_t>(export_entry->type), export_entry->name, reinterpret_cast<const void *>(export_entry->address)));
}
for (auto &hook_entry: module_data->hook_entries) {
if (hook_entry.target == 0) {
continue;
}
moduleData.addHookData(HookData(static_cast<wums_hook_type_t>(hook_entry.type), reinterpret_cast<const void *>(hook_entry.target)));
}
for (auto &linking_entry: module_data->linking_entries) {
if (linking_entry.destination == nullptr) {
break;
}
dyn_linking_import_t *importEntry = linking_entry.importEntry;
if (importEntry == nullptr) {
DEBUG_FUNCTION_LINE("importEntry was NULL, skipping relocation entry\n");
continue;
}
dyn_linking_function_t *functionEntry = linking_entry.functionEntry;
if (functionEntry == nullptr) {
DEBUG_FUNCTION_LINE("functionEntry was NULL, skipping relocation entry\n");
continue;
}
ImportRPLInformation rplInfo(importEntry->importName, importEntry->isData);
RelocationData reloc(linking_entry.type, linking_entry.offset, linking_entry.addend, linking_entry.destination, functionEntry->functionName, rplInfo);
moduleData.addRelocationData(reloc);
}
if (module_data->function_symbol_entries != nullptr && module_data->number_used_function_symbols > 0) {
for (uint32_t j = 0; j < module_data->number_used_function_symbols; j++) {
auto symbol = &module_data->function_symbol_entries[j];
moduleData.addFunctionSymbolData(FunctionSymbolData(symbol->name, symbol->address, symbol->size));
}
}
result.push_back(moduleData);
}
return result;
}