WUMSLoader/relocator/src/ModuleDataPersistence.cpp
2020-05-17 19:05:51 +02:00

101 lines
4.3 KiB
C++

#include "ModuleDataPersistence.h"
#include "DynamicLinkingHelper.h"
#include "../../source/common/module_defines.h"
#include "../../source/module/ModuleData.h"
#include "../../source/module/RelocationData.h"
#include <coreinit/cache.h>
bool ModuleDataPersistence::saveModuleData(module_information_t *moduleInformation, const ModuleData &module) {
int32_t module_count = moduleInformation->number_used_modules;
if (module_count >= MAXIMUM_MODULES) {
return false;
}
// Copy data to global struct.
module_information_single_t *module_data = &(moduleInformation->module_data[module_count]);
// Relocation
std::vector<RelocationData> relocationData = module.getRelocationDataList();
for (auto const &reloc : relocationData) {
if (!DynamicLinkingHelper::addReloationEntry(&(moduleInformation->linking_data), module_data->linking_entries, DYN_LINK_RELOCATION_LIST_LENGTH, reloc)) {
return false;
}
}
module_data->bssAddr = module.getBSSAddr();
module_data->bssSize = module.getBSSSize();
module_data->sbssAddr = module.getSBSSAddr();
module_data->sbssSize = module.getSBSSSize();
module_data->endAddress = module.getStartAddress();
module_data->startAddress = module.getEndAddress();
module_data->entrypoint = module.getEntrypoint();
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 == NULL) {
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);
for (uint32_t j = 0; j < DYN_LINK_RELOCATION_LIST_LENGTH; j++) {
dyn_linking_relocation_entry_t *linking_entry = &(module_data->linking_entries[j]);
if (linking_entry->destination == NULL) {
break;
}
dyn_linking_import_t *importEntry = linking_entry->importEntry;
if (importEntry == NULL) {
DEBUG_FUNCTION_LINE("importEntry was NULL, skipping relocation entry\n");
continue;
}
if (importEntry->importName == NULL) {
DEBUG_FUNCTION_LINE("importEntry->importName was NULL, skipping relocation entry\n");
continue;
}
dyn_linking_function_t *functionEntry = linking_entry->functionEntry;
if (functionEntry == NULL) {
DEBUG_FUNCTION_LINE("functionEntry was NULL, skipping relocation entry\n");
continue;
}
if (functionEntry->functionName == NULL) {
DEBUG_FUNCTION_LINE("functionEntry->functionName 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);
}
result.push_back(moduleData);
}
return result;
}