WiiUPluginLoaderBackend/source/main.cpp

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#include <whb/log_udp.h>
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#include <wums.h>
#include <coreinit/debug.h>
#include <coreinit/cache.h>
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#include "plugin/PluginContainer.h"
#include "globals.h"
#include "plugin/PluginDataFactory.h"
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#include "plugin/PluginDataPersistence.h"
#include "plugin/PluginContainerPersistence.h"
#include "PluginManagement.h"
#include "hooks.h"
#include "patcher/hooks_patcher_static.h"
WUMS_MODULE_EXPORT_NAME("homebrew_wupsbackend");
WUMS_INITIALIZE(args) {
WHBLogUdpInit();
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gModuleData = args.module_information;
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if (gModuleData == nullptr) {
OSFatal("WUPS-Backend: Failed to get gModuleData pointer.");
}
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if (gModuleData->version != MODULE_INFORMATION_VERSION) {
OSFatal("WUPS-Backend: The module information struct version does not match.");
}
WHBLogPrintf("Init successful");
}
WUMS_APPLICATION_ENDS() {
DEBUG_FUNCTION_LINE("Reset alreadyPatched flags for dynamic functions");
auto pluginInformation = gPluginInformation;
for (int32_t plugin_index = pluginInformation->number_used_plugins - 1; plugin_index >= 0; plugin_index--) {
FunctionPatcherRestoreDynamicFunctions(pluginInformation->plugin_data[plugin_index].info.functions, pluginInformation->plugin_data[plugin_index].info.number_used_functions);
}
FunctionPatcherRestoreDynamicFunctions(method_hooks_hooks_static, method_hooks_size_hooks_static);
DEBUG_FUNCTION_LINE("Call hooks");
CallHook(gPluginInformation, WUPS_LOADER_HOOK_APPLICATION_END);
CallHook(gPluginInformation, WUPS_LOADER_HOOK_FINI_WUT_DEVOPTAB);
}
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WUMS_APPLICATION_STARTS() {
WHBLogUdpInit();
uint32_t upid = OSGetUPID();
if (upid != 2 && upid != 15) {
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return;
}
bool initNeeded = false;
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if (pluginDataHeap == nullptr) {
DEBUG_FUNCTION_LINE("gModuleData = %08X", gModuleData);
DCFlushRange((void *) gModuleData, sizeof(module_information_t));
uint32_t endAddress = 0;
DEBUG_FUNCTION_LINE("Using %d modules", gModuleData->number_used_modules);
for (int i = 0; i < gModuleData->number_used_modules; i++) {
DEBUG_FUNCTION_LINE("%08x", gModuleData->module_data[i].endAddress);
uint32_t curEndAddr = gModuleData->module_data[i].endAddress;
if (curEndAddr > endAddress) {
endAddress = curEndAddr;
}
}
memset((void *) &gLinkOnReload, 0, sizeof(gLinkOnReload));
// If this address is 0, make sure the header common match the one
// in the SetupPayload repo. (I know that's a bad idea)
endAddress = (endAddress + 0x100) & 0xFFFFFF00;
gPluginDataHeapSize = 0x00FFF000 - endAddress;
DEBUG_FUNCTION_LINE("Create heap to store plugins");
pluginDataHeap = MEMCreateExpHeapEx((void *) (endAddress), gPluginDataHeapSize, 0);
if (pluginDataHeap != nullptr) {
if (gPluginInformation == nullptr) {
DEBUG_FUNCTION_LINE("Allocate gPluginInformation on heap %08X (size: %d bytes)", pluginDataHeap, sizeof(plugin_information_t));
gPluginInformation = (plugin_information_t *) MEMAllocFromExpHeapEx(pluginDataHeap, sizeof(plugin_information_t), 4);
if (gPluginInformation == nullptr) {
DEBUG_FUNCTION_LINE("Failed to allocate global plugin information");
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return;
}
memset((void *) gPluginInformation, 0, sizeof(plugin_information_t));
}
DEBUG_FUNCTION_LINE("Available memory for storing plugins: %d kb", MEMGetAllocatableSizeForExpHeapEx(pluginDataHeap, 4) / 1024);
std::vector<PluginData> pluginList = PluginDataFactory::loadDir("fs:/vol/external01/wiiu/plugins/", pluginDataHeap);
DEBUG_FUNCTION_LINE("Loaded data for %d plugins.", pluginList.size());
std::vector<PluginContainer> plugins = PluginManagement::loadPlugins(pluginList, pluginDataHeap, gPluginInformation->trampolines, DYN_LINK_TRAMPOLIN_LIST_LENGTH);
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for (auto &pluginContainer : plugins) {
for (const auto &kv : pluginContainer.getPluginInformation().getSectionInfoList()) {
DEBUG_FUNCTION_LINE("%s = %s %08X %d", kv.first.c_str(), kv.second.getName().c_str(), kv.second.getAddress(), kv.second.getSize());
}
if (!PluginContainerPersistence::savePlugin(gPluginInformation, pluginContainer)) {
DEBUG_FUNCTION_LINE("Failed to save plugin");
}
}
initNeeded = true;
}
}
if (gLinkOnReload.loadOnReload) {
DEBUG_FUNCTION_LINE("Reload with new plugin list.");
std::vector<PluginData> pluginDataList;
for (int32_t i = 0; i < gLinkOnReload.number_used_plugins; i++) {
auto pluginData = PluginDataPersistence::load(&gLinkOnReload.plugin_data[i]);
pluginDataList.push_back(pluginData);
}
for (int32_t plugin_index = 0; plugin_index < gPluginInformation->number_used_plugins; plugin_index++) {
plugin_information_single_t *plugin = &(gPluginInformation->plugin_data[plugin_index]);
BOOL doDelete = true;
for (auto &pluginData: pluginDataList) {
if (pluginData.buffer == plugin->data.buffer) {
doDelete = false;
break;
}
}
if (doDelete) {
DEBUG_FUNCTION_LINE("We need to delete the plugin data for plugin %s", plugin->meta.name);
if (plugin->data.buffer != nullptr) {
if (plugin->data.memoryType == eMemTypeMEM2) {
DEBUG_FUNCTION_LINE("Free plugin data buffer for %s [%08X]", plugin->meta.name, plugin->data.buffer);
free(plugin->data.buffer);
} else if (plugin->data.memoryType == eMemTypeExpHeap) {
DEBUG_FUNCTION_LINE("Free plugin data buffer for %s [%08X on heap %08X]", plugin->meta.name, 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.buffer = nullptr;
plugin->data.bufferLength = 0;
} else {
DEBUG_FUNCTION_LINE("Plugin %s has no copy of elf saved in memory, can't free it", plugin->meta.name);
}
}
}
PluginManagement::unloadPlugins(gPluginInformation, pluginDataHeap, false);
std::vector<PluginContainer> plugins = PluginManagement::loadPlugins(pluginDataList, pluginDataHeap, gPluginInformation->trampolines, DYN_LINK_TRAMPOLIN_LIST_LENGTH);
for (auto &pluginContainer : plugins) {
DEBUG_FUNCTION_LINE("Stored information for plugin %s ; %s", pluginContainer.getMetaInformation().getName().c_str(), pluginContainer.getMetaInformation().getAuthor().c_str());
if (!PluginContainerPersistence::savePlugin(gPluginInformation, pluginContainer)) {
DEBUG_FUNCTION_LINE("Failed to save plugin");
}
}
gLinkOnReload.loadOnReload = false;
initNeeded = true;
}
if (pluginDataHeap != nullptr) {
std::vector<PluginContainer> plugins = PluginContainerPersistence::loadPlugins(gPluginInformation);
PluginManagement::doRelocations(plugins, gPluginInformation->trampolines, DYN_LINK_TRAMPOLIN_LIST_LENGTH);
// PluginManagement::memsetBSS(plugins);
DCFlushRange((void *) pluginDataHeap, gPluginDataHeapSize);
ICInvalidateRange((void *) pluginDataHeap, gPluginDataHeapSize);
if (initNeeded) {
PluginManagement::callInitHooks(gPluginInformation);
}
PluginManagement::PatchFunctionsAndCallHooks(gPluginInformation);
}
}