详细分析Android中实现Zygote的源码

parentDir = arg; } else if (strcmp(arg, "--zygote") == 0) {

zygote = true; niceName = "zygote";

} else if (strcmp(arg, "--start-system-server") == 0) { startSystemServer = true;

} else if (strcmp(arg, "--application") == 0) { application = true;

} else if (strncmp(arg, "--nice-name=", 12)) { niceName = arg + 12;

} else { className = arg;

break; }

}

if (niceName && *niceName) { setArgv0(argv0, niceName);

set_process_name(niceName); }

runtime.mParentDir = parentDir;

if (zygote) {

// 进入到AppRuntime的start函数 runtime.start("com.android.internal.os.ZygoteInit",

startSystemServer? "start-system-server" : ""); } else if (className) {

runtime.mClassName = className; runtime.mArgc = argc - i;

runtime.mArgv = argv + i; runtime.start("com.android.internal.os.RuntimeInit", application ? "application" : "tool");

} else { fprintf("stderr", "Error: no class name or --zygote supplied.n");

app_usage(); LOG_ALWAYS_FATAL("app_process: no class name or --zygote supplied");

return 10; }

}