127 lines
4.5 KiB
C++
127 lines
4.5 KiB
C++
#include <stdint.h>
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#include <coreinit/cache.h>
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#include <coreinit/dynload.h>
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#include <sysapp/launch.h>
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#include <nsysnet/socket.h>
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#include <proc_ui/procui.h>
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#include <coreinit/foreground.h>
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#include "ElfUtils.h"
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#include "module/ModuleData.h"
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#include "module/ModuleDataFactory.h"
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#include "common/module_defines.h"
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#include "main.h"
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#include "kernel.h"
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#include "dynamic.h"
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#include "utils/logger.h"
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#include "utils/utils.h"
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#include "utils/sd_fat_devoptab.h"
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#define gModuleData ((module_information_t *) (0x00880000))
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static_assert(sizeof(module_information_t) <= 0x80000);
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bool doRelocation(std::vector<RelocationData *> &relocData, relocation_trampolin_entry_t * tramp_data, uint32_t tramp_length);
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bool CheckRunning() {
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switch(ProcUIProcessMessages(true)) {
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case PROCUI_STATUS_EXITING: {
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return false;
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}
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case PROCUI_STATUS_RELEASE_FOREGROUND: {
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ProcUIDrawDoneRelease();
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break;
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}
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case PROCUI_STATUS_IN_FOREGROUND: {
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break;
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}
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case PROCUI_STATUS_IN_BACKGROUND:
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default:
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break;
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}
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return true;
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}
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extern "C" int _start(int argc, char **argv) {
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doKernelSetup();
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InitFunctionPointers();
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socket_lib_init();
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log_init();
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int res = 0;
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if((res = mount_sd_fat("sd")) >= 0) {
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DEBUG_FUNCTION_LINE("Mounted sd card\n");
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uint32_t ApplicationMemoryEnd;
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asm volatile("lis %0, __CODE_END@h; ori %0, %0, __CODE_END@l" : "=r" (ApplicationMemoryEnd));
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ApplicationMemoryEnd = (ApplicationMemoryEnd + 0x10000) & 0xFFFF0000;
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ModuleData * moduleData = ModuleDataFactory::load("sd:/wiiu/payload.rpx", ApplicationMemoryEnd, 0x01000000 - ApplicationMemoryEnd, gModuleData->trampolines, DYN_LINK_TRAMPOLIN_LIST_LENGTH);
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if(moduleData != NULL) {
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DEBUG_FUNCTION_LINE("Loaded module data\n");
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std::vector<RelocationData *> relocData = moduleData->getRelocationDataList();
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if(!doRelocation(relocData, gModuleData->trampolines,DYN_LINK_TRAMPOLIN_LIST_LENGTH)) {
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DEBUG_FUNCTION_LINE("relocations failed\n");
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}
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if(moduleData->getBSSAddr() != 0) {
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DEBUG_FUNCTION_LINE("memset .bss %08X (%d)\n", moduleData->getBSSAddr(), moduleData->getBSSSize());
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memset((void*)moduleData->getBSSAddr(), 0, moduleData->getBSSSize());
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}
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if(moduleData->getSBSSAddr() != 0) {
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DEBUG_FUNCTION_LINE("memset .sbss %08X (%d)\n", moduleData->getSBSSAddr(), moduleData->getSBSSSize());
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memset((void*)moduleData->getSBSSAddr(), 0, moduleData->getSBSSSize());
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}
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DCFlushRange((void*)0x00800000, 0x00800000);
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ICInvalidateRange((void*)0x00800000, 0x00800000);
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DEBUG_FUNCTION_LINE("New entrypoint: %08X\n", moduleData->getEntrypoint());
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((int (*)(int, char **))moduleData->getEntrypoint())(argc, argv);
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delete moduleData;
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} else {
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DEBUG_FUNCTION_LINE("Failed to load module\n");
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}
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} else {
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DEBUG_FUNCTION_LINE("Mounted sd card failed %d.\n", res);
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}
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SYSLaunchMenu();
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ProcUIInit(OSSavesDone_ReadyToRelease);
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DEBUG_FUNCTION_LINE("In ProcUI loop\n");
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while(CheckRunning()) {
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// wait.
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OSSleepTicks(OSMillisecondsToTicks(100));
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}
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ProcUIShutdown();
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return 0;
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}
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bool doRelocation(std::vector<RelocationData *> &relocData, relocation_trampolin_entry_t * tramp_data, uint32_t tramp_length) {
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for (auto const& curReloc : relocData) {
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RelocationData * cur = curReloc;
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std::string functionName = cur->getName();
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std::string rplName = cur->getImportRPLInformation()->getName();
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int32_t isData = cur->getImportRPLInformation()->isData();
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OSDynLoad_Module rplHandle = 0;
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OSDynLoad_Acquire(rplName.c_str(), &rplHandle);
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uint32_t functionAddress = 0;
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OSDynLoad_FindExport(rplHandle, isData, functionName.c_str(), (void**) &functionAddress);
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if(functionAddress == 0) {
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return false;
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}
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if(!ElfUtils::elfLinkOne(cur->getType(), cur->getOffset(), cur->getAddend(), (uint32_t) cur->getDestination(), functionAddress, tramp_data, tramp_length, RELOC_TYPE_IMPORT)) {
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DEBUG_FUNCTION_LINE("Relocation failed\n");
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return false;
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}
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}
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DCFlushRange(tramp_data, tramp_length * sizeof(relocation_trampolin_entry_t));
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ICInvalidateRange(tramp_data, tramp_length * sizeof(relocation_trampolin_entry_t));
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return true;
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}
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