WiiUPluginLoaderBackend/source/PluginManagement.cpp

128 lines
6.4 KiB
C++

#include <plugin/PluginContainer.h>
#include <utils/ElfUtils.h>
#include <coreinit/cache.h>
#include <patcher/function_patcher.h>
#include "patcher/hooks_patcher_static.h"
#include "patcher/hooks_patcher.h"
#include "PluginManagement.h"
#include "hooks.h"
bool PluginManagement::doRelocation(const std::vector<RelocationData> &relocData, relocation_trampolin_entry_t *tramp_data, uint32_t tramp_length, uint32_t trampolinID) {
std::map<std::string, OSDynLoad_Module> moduleHandleCache;
for (auto const &cur : relocData) {
std::string functionName = cur.getName();
std::string rplName = cur.getImportRPLInformation().getName();
int32_t isData = cur.getImportRPLInformation().isData();
OSDynLoad_Module rplHandle = 0;
if (moduleHandleCache.count(rplName) > 0) {
rplHandle = moduleHandleCache[rplName];
} else {
OSDynLoad_Acquire(rplName.c_str(), &rplHandle);
moduleHandleCache[rplName] = rplHandle;
}
uint32_t functionAddress = 0;
OSDynLoad_FindExport(rplHandle, isData, functionName.c_str(), (void **) &functionAddress);
if (functionAddress == 0) {
DEBUG_FUNCTION_LINE("Failed to find export for %s", functionName.c_str());
return false;
} else {
//DEBUG_FUNCTION_LINE("Found export for %s %s", rplName.c_str(), functionName.c_str());
}
if (!ElfUtils::elfLinkOne(cur.getType(), cur.getOffset(), cur.getAddend(), (uint32_t) cur.getDestination(), functionAddress, tramp_data, tramp_length, RELOC_TYPE_IMPORT, trampolinID)) {
DEBUG_FUNCTION_LINE("Relocation failed\n");
return false;
}
}
DCFlushRange(tramp_data, tramp_length * sizeof(relocation_trampolin_entry_t));
ICInvalidateRange(tramp_data, tramp_length * sizeof(relocation_trampolin_entry_t));
return true;
}
void PluginManagement::doRelocations(const std::vector<PluginContainer> &plugins, relocation_trampolin_entry_t *trampData, uint32_t tramp_size) {
for (auto &pluginContainer : plugins) {
DEBUG_FUNCTION_LINE("Doing relocations for plugin: %s", pluginContainer.getMetaInformation().getName().c_str());
if (!PluginManagement::doRelocation(pluginContainer.getPluginInformation().getRelocationDataList(), trampData, tramp_size, pluginContainer.getPluginInformation().getTrampolinId())) {
DEBUG_FUNCTION_LINE("Relocation failed");
}
}
}
void PluginManagement::memsetBSS(const std::vector<PluginContainer> &plugins) {
for (auto &pluginContainer : plugins) {
auto sbssSection = pluginContainer.getPluginInformation().getSectionInfo(".sbss");
if (sbssSection) {
DEBUG_FUNCTION_LINE("memset .sbss %08X (%d)", sbssSection->getAddress(), sbssSection->getSize());
memset((void *) sbssSection->getAddress(), 0, sbssSection->getSize());
}
auto bssSection = pluginContainer.getPluginInformation().getSectionInfo(".bss");
if (bssSection) {
DEBUG_FUNCTION_LINE("memset .bss %08X (%d)", bssSection->getAddress(), bssSection->getSize());
memset((void *) bssSection->getAddress(), 0, bssSection->getSize());
}
}
}
void PluginManagement::unloadPlugins(plugin_information_t *gPluginInformation, MEMHeapHandle pluginHeap) {
for (int32_t plugin_index = 0; plugin_index < gPluginInformation->number_used_plugins; plugin_index++) {
DEBUG_FUNCTION_LINE();
plugin_information_single_t *plugin = &(gPluginInformation->plugin_data[plugin_index]);
if (plugin->data.buffer != nullptr) {
if (plugin->data.memoryType == eMemTypeMEM2) {
DEBUG_FUNCTION_LINE("free %08X", plugin->data.buffer);
free(plugin->data.buffer);
} else if (plugin->data.memoryType == eMemTypeExpHeap) {
DEBUG_FUNCTION_LINE("free %08X on EXP heap %08X", plugin->data.buffer, plugin->data.heapHandle);
MEMFreeToExpHeap((MEMHeapHandle) plugin->data.heapHandle, plugin->data.buffer);
} else {
DEBUG_FUNCTION_LINE("########################");
DEBUG_FUNCTION_LINE("Failed to free memory from plugin");
DEBUG_FUNCTION_LINE("########################");
}
plugin->data.bufferLength = 0;
} else {
DEBUG_FUNCTION_LINE("Plugin has no copy of elf save in memory, can't free it");
}
if (plugin->info.allocatedTextMemoryAddress != nullptr) {
MEMFreeToExpHeap((MEMHeapHandle) pluginHeap, plugin->info.allocatedTextMemoryAddress);
DEBUG_FUNCTION_LINE("Freed %08X",plugin->info.allocatedTextMemoryAddress);
}
if (plugin->info.allocatedDataMemoryAddress != nullptr) {
MEMFreeToExpHeap((MEMHeapHandle) pluginHeap, plugin->info.allocatedDataMemoryAddress);
DEBUG_FUNCTION_LINE("Freed %08X",plugin->info.allocatedDataMemoryAddress);
}
}
memset((void *) gPluginInformation, 0, sizeof(plugin_information_t));
}
void PluginManagement::callInitHooks(plugin_information_t *pluginInformation) {
CallHook(pluginInformation, WUPS_LOADER_HOOK_INIT_VID_MEM);
CallHook(pluginInformation, WUPS_LOADER_HOOK_INIT_KERNEL);
CallHook(pluginInformation, WUPS_LOADER_HOOK_INIT_OVERLAY);
CallHook(pluginInformation, WUPS_LOADER_HOOK_INIT_PLUGIN);
DEBUG_FUNCTION_LINE("Done calling init hooks");
}
void PluginManagement::PatchFunctionsAndCallHooks(plugin_information_t *gPluginInformation) {
DEBUG_FUNCTION_LINE("Patching functions");
PatchInvidualMethodHooks(method_hooks_hooks_static, method_hooks_size_hooks_static, method_calls_hooks_static);
PatchInvidualMethodHooks(method_hooks_hooks, method_hooks_size_hooks, method_calls_hooks);
for (int32_t plugin_index = 0; plugin_index < gPluginInformation->number_used_plugins; plugin_index++) {
CallHookEx(gPluginInformation, WUPS_LOADER_HOOK_INIT_WUT_MALLOC, plugin_index);
CallHookEx(gPluginInformation, WUPS_LOADER_HOOK_INIT_WUT_NEWLIB, plugin_index);
CallHookEx(gPluginInformation, WUPS_LOADER_HOOK_INIT_WUT_STDCPP, plugin_index);
CallHookEx(gPluginInformation, WUPS_LOADER_HOOK_INIT_WUT_DEVOPTAB, plugin_index);
CallHookEx(gPluginInformation, WUPS_LOADER_HOOK_APPLICATION_START, plugin_index);
new_PatchInvidualMethodHooks(&(gPluginInformation->plugin_data[plugin_index].info));
CallHookEx(gPluginInformation, WUPS_LOADER_HOOK_FUNCTIONS_PATCHED, plugin_index);
}
}