Android 的init过程详解

文章出处：http://blog.youkuaiyun.com/shift_wwx/article/details/39229439

请转载的朋友表明出处~~

init进程是用户空间执行的第一个进程，直接进入code：/system/core/init/init.c

int main(int argc, char **argv)
{
    int fd_count = 0;
    struct pollfd ufds[4];
    char *tmpdev;
    char* debuggable;
    char tmp[32];
    int property_set_fd_init = 0;
    int signal_fd_init = 0;
    int keychord_fd_init = 0;
    bool is_charger = false;

    if (!strcmp(basename(argv[0]), "ueventd"))
        return ueventd_main(argc, argv);

    if (!strcmp(basename(argv[0]), "watchdogd"))
        return watchdogd_main(argc, argv);

    /* clear the umask */
    umask(0);

        /* Get the