Bootx (iBoot command)

Description
A command found in iBEC, iBoot, and iBSS that verifies and boots a kernelcache image which has been uploaded.

iPhone 3GS S5L8920x from iBoot-636.66
char** gBootArgs; int cmd_bootx(int argc, CmdArg* argv) { void* address = NULL; if(argc > 1 && !strcmp("help", argv[1].string)) { printf("usage:\n\t%s [ ]\n", argv[0].string); return -1; }   if(range_check(kLoadAddress, kKernelMaxSize) < 0) { printf("Permission Denied\n"); return -1; }   printf("Attempting to validate kernelcache @ 0x%08x\n", kLoadAddress); int err = load_macho_image(kLoadAddress, kKernelMaxSize, &address) if(err >= 0) { printf("kernelcache prepped at address 0x%08x\n", address); jump_to(3, address, gBootArgs); } else { printf("error loading kernelcache\n"); }   return err; }
 * 1) define kLoadAddress 0x41000000
 * 2) define kKernelMaxSize 0xF00000