基于qemu-riscv从0开始构建嵌入式linux系统ch12. busybox
busybox工具包
busybox号称嵌入式Linux的瑞士军刀，我们上节中测试了init进程，但是在常见的linux系统上有各自的init进程，比较常见的是sysvinit，而在嵌入式领域由于内存存储空间的限制，诞生了一款轻量级的GNU工具包即busybox，其中包含了系统启动的init进程。busybox官网地址：https://busybox.net/ 在这里可以下载最新版busybox-1.33.1。
编译
busybox编译也很简单，这里注意一点，busybox是运行在linux上的用户态应用程序，因此需要一定的libc库支持，我们的项目进行到现在一直是在bootlin上下载的别人的二进制交叉编译工具链的，这个对于编译之前的uboot、kernel都毫无问题，因为这些不需要C库支持，而从现在开始我们需要C库支持，那么为了后续调试方便，我会考虑拉取riscv的gcc上游代码自己编译生成c库供我们使用，这节我们就先用现在的编译器进行busybox的编译。增加编译命令如下：
# 编译busybox-1.33.1
if [ ! -d "$SHELL_FOLDER/output/busybox" ]; then
mkdir $SHELL_FOLDER/output/busybox
fi
cd $SHELL_FOLDER/busybox-1.33.1
make ARCH=riscv CROSS_COMPILE=$CROSS_PREFIX- quard_star_defconfig
make ARCH=riscv CROSS_COMPILE=$CROSS_PREFIX- -j16
make ARCH=riscv CROSS_COMPILE=$CROSS_PREFIX- install
然后创建文件busybox-1.33.1/configs/quard_star_defconfig，内容如下：（说明下这个config是基于使用默认的config修改的，只做了一处改动，就是busybox编译生成的可执行文件采用静态编译而非动态链接，当然这是我们现阶段的方案，后续为了高效利用存储空间还是会使用动态库的方案，也会做一节动态库的加载实现原理的章节）
#
# Automatically generated make config: don't edit
# Busybox version: 1.33.1
# Sun Jul 11 11:45:02 2021
#
CONFIG_HAVE_DOT_CONFIG=y
#
# Settings
#
CONFIG_DESKTOP=y
# CONFIG_EXTRA_COMPAT is not set
# CONFIG_FEDORA_COMPAT is not set
CONFIG_INCLUDE_SUSv2=y
CONFIG_LONG_OPTS=y
CONFIG_SHOW_USAGE=y
CONFIG_FEATURE_VERBOSE_USAGE=y
CONFIG_FEATURE_COMPRESS_USAGE=y
CONFIG_LFS=y
# CONFIG_PAM is not set
CONFIG_FEATURE_DEVPTS=y
CONFIG_FEATURE_UTMP=y
CONFIG_FEATURE_WTMP=y
CONFIG_FEATURE_PIDFILE=y
CONFIG_PID_FILE_PATH="/var/run"
CONFIG_BUSYBOX=y
CONFIG_FEATURE_SHOW_SCRIPT=y
CONFIG_FEATURE_INSTALLER=y
# CONFIG_INSTALL_NO_USR is not set
CONFIG_FEATURE_SUID=y
CONFIG_FEATURE_SUID_CONFIG=y
CONFIG_FEATURE_SUID_CONFIG_QUIET=y
# CONFIG_FEATURE_PREFER_APPLETS is not set
CONFIG_BUSYBOX_EXEC_PATH="/proc/self/exe"
# CONFIG_SELINUX is not set
# CONFIG_FEATURE_CLEAN_UP is not set
CONFIG_FEATURE_SYSLOG_INFO=y
CONFIG_FEATURE_SYSLOG=y
#
# Build Options
#
CONFIG_STATIC=y
# CONFIG_PIE is not set
# CONFIG_NOMMU is not set
# CONFIG_BUILD_LIBBUSYBOX is not set
# CONFIG_FEATURE_LIBBUSYBOX_STATIC is not set
# CONFIG_FEATURE_INDIVIDUAL is not set
# CONFIG_FEATURE_SHARED_BUSYBOX is not set
CONFIG_CROSS_COMPILER_PREFIX=""
CONFIG_SYSROOT=""
CONFIG_EXTRA_CFLAGS=""
CONFIG_EXTRA_LDFLAGS=""
CONFIG_EXTRA_LDLIBS=""
# CONFIG_USE_PORTABLE_CODE is not set
CONFIG_STACK_OPTIMIZATION_386=y
CONFIG_STATIC_LIBGCC=y
#
# Installation Options ("make install" behavior)
#
CONFIG_INSTALL_APPLET_SYMLINKS=y
# CONFIG_INSTALL_APPLET_HARDLINKS is not set
# CONFIG_INSTALL_APPLET_SCRIPT_WRAPPERS is not set
# CONFIG_INSTALL_APPLET_DONT is not set
# CONFIG_INSTALL_SH_APPLET_SYMLINK is not set
# CONFIG_INSTALL_SH_APPLET_HARDLINK is not set
# CONFIG_INSTALL_SH_APPLET_SCRIPT_WRAPPER is not set
CONFIG_PREFIX="../output/busybox"
#
# Debugging Options
#
# CONFIG_DEBUG is not set
# CONFIG_DEBUG_PESSIMIZE is not set
# CONFIG_DEBUG_SANITIZE is not set
# CONFIG_UNIT_TEST is not set
# CONFIG_WERROR is not set
# CONFIG_WARN_SIMPLE_MSG is not set
CONFIG_NO_DEBUG_LIB=y
# CONFIG_DMALLOC is not set
# CONFIG_EFENCE is not set
#
# Library Tuning
#
# CONFIG_FEATURE_USE_BSS_TAIL is not set
CONFIG_FLOAT_DURATION=y
CONFIG_FEATURE_RTMINMAX=y
CONFIG_FEATURE_RTMINMAX_USE_LIBC_DEFINITIONS=y
CONFIG_FEATURE_BUFFERS_USE_MALLOC=y
# CONFIG_FEATURE_BUFFERS_GO_ON_STACK is not set
# CONFIG_FEATURE_BUFFERS_GO_IN_BSS is not set
CONFIG_PASSWORD_MINLEN=6
CONFIG_MD5_SMALL=1
CONFIG_SHA3_SMALL=1
# CONFIG_FEATURE_FAST_TOP is not set
# CONFIG_FEATURE_ETC_NETWORKS is not set
# CONFIG_FEATURE_ETC_SERVICES is not set
CONFIG_FEATURE_EDITING=y
CONFIG_FEATURE_EDITING_MAX_LEN=1024
# CONFIG_FEATURE_EDITING_VI is not set
CONFIG_FEATURE_EDITING_HISTORY=255
CONFIG_FEATURE_EDITING_SAVEHISTORY=y
# CONFIG_FEATURE_EDITING_SAVE_ON_EXIT is not set
CONFIG_FEATURE_REVERSE_SEARCH=y
CONFIG_FEATURE_TAB_COMPLETION=y
CONFIG_FEATURE_USERNAME_COMPLETION=y
CONFIG_FEATURE_EDITING_FANCY_PROMPT=y
CONFIG_FEATURE_EDITING_WINCH=y
# CONFIG_FEATURE_EDITING_ASK_TERMINAL is not set
# CONFIG_LOCALE_SUPPORT is not set
CONFIG_UNICODE_SUPPORT=y
# CONFIG_UNICODE_USING_LOCALE is not set
# CONFIG_FEATURE_CHECK_UNICODE_IN_ENV is not set
CONFIG_SUBST_WCHAR=63
CONFIG_LAST_SUPPORTED_WCHAR=767
# CONFIG_UNICODE_COMBINING_WCHARS is not set
# CONFIG_UNICODE_WIDE_WCHARS is not set
# CONFIG_UNICODE_BIDI_SUPPORT is not set
# CONFIG_UNICODE_NEUTRAL_TABLE is not set
# CONFIG_UNICODE_PRESERVE_BROKEN is not set
CONFIG_FEATURE_NON_POSIX_CP=y
# CONFIG_FEATURE_VERBOSE_CP_MESSAGE is not set
CONFIG_FEATURE_USE_SENDFILE=y
CONFIG_FEATURE_COPYBUF_KB=4
CONFIG_FEATURE_SKIP_ROOTFS=y
CONFIG_MONOTONIC_SYSCALL=y
CONFIG_IOCTL_HEX2STR_ERROR=y
CONFIG_FEATURE_HWIB=y
#
# Applets
#
#
# Archival Utilities
#
CONFIG_FEATURE_SEAMLESS_XZ=y
CONFIG_FEATURE_SEAMLESS_LZMA=y
CONFIG_FEATURE_SEAMLESS_BZ2=y
CONFIG_FEATURE_SEAMLESS_GZ=y
# CONFIG_FEATURE_SEAMLESS_Z is not set
# CONFIG_AR is not set
# CONFIG_FEATURE_AR_LONG_FILENAMES is not set
# CONFIG_FEATURE_AR_CREATE is not set
# CONFIG_UNCOMPRESS is not set
CONFIG_GUNZIP=y
CONFIG_ZCAT=y
CONFIG_FEATURE_GUNZIP_LONG_OPTIONS=y
CONFIG_BUNZIP2=y
CONFIG_BZCAT=y
CONFIG_UNLZMA=y
CONFIG_LZCAT=y
CONFIG_LZMA=y
CONFIG_UNXZ=y
CONFIG_XZCAT=y
CONFIG_XZ=y
CONFIG_BZIP2=y
CONFIG_BZIP2_SMALL=8
CONFIG_FEATURE_BZIP2_DECOMPRESS=y
CONFIG_CPIO=y
CONFIG_FEATURE_CPIO_O=y
CONFIG_FEATURE_CPIO_P=y
CONFIG_DPKG=y
CONFIG_DPKG_DEB=y
CONFIG_GZIP=y
CONFIG_FEATURE_GZIP_LONG_OPTIONS=y
CONFIG_GZIP_FAST=0
# CONFIG_FEATURE_GZIP_LEVELS is not set
CONFIG_FEATURE_GZIP_DECOMPRESS=y
CONFIG_LZOP=y
# CONFIG_UNLZOP is not set
# CONFIG_LZOPCAT is not set
# CONFIG_LZOP_COMPR_HIGH is not set
CONFIG_RPM=y
CONFIG_RPM2CPIO=y
CONFIG_TAR=y
CONFIG_FEATURE_TAR_LONG_OPTIONS=y
CONFIG_FEATURE_TAR_CREATE=y
CONFIG_FEATURE_TAR_AUTODETECT=y
CONFIG_FEATURE_TAR_FROM=y
CONFIG_FEATURE_TAR_OLDGNU_COMPATIBILITY=y
CONFIG_FEATURE_TAR_OLDSUN_COMPATIBILITY=y
CONFIG_FEATURE_TAR_GNU_EXTENSIONS=y
CONFIG_FEATURE_TAR_TO_COMMAND=y
CONFIG_FEATURE_TAR_UNAME_GNAME=y
CONFIG_FEATURE_TAR_NOPRESERVE_TIME=y
# CONFIG_FEATURE_TAR_SELINUX is not set
CONFIG_UNZIP=y
CONFIG_FEATURE_UNZIP_CDF=y
CONFIG_FEATURE_UNZIP_BZIP2=y
CONFIG_FEATURE_UNZIP_LZMA=y
CONFIG_FEATURE_UNZIP_XZ=y
# CONFIG_FEATURE_LZMA_FAST is not set
#
# Coreutils
#
CONFIG_BASENAME=y
CONFIG_CAT=y
CONFIG_FEATURE_CATN=y
CONFIG_FEATURE_CATV=y
CONFIG_CHGRP=y
CONFIG_CHMOD=y
CONFIG_CHOWN=y
CONFIG_FEATURE_CHOWN_LONG_OPTIONS=y
CONFIG_CHROOT=y
CONFIG_CKSUM=y
CONFIG_COMM=y
CONFIG_CP=y
CONFIG_FEATURE_CP_LONG_OPTIONS=y
CONFIG_FEATURE_CP_REFLINK=y
CONFIG_CUT=y
CONFIG_DATE=y
CONFIG_FEATURE_DATE_ISOFMT=y
# CONFIG_FEATURE_DATE_NANO is not set
CONFIG_FEATURE_DATE_COMPAT=y
CONFIG_DD=y
CONFIG_FEATURE_DD_SIGNAL_HANDLING=y
CONFIG_FEATURE_DD_THIRD_STATUS_LINE=y
CONFIG_FEATURE_DD_IBS_OBS=y
CONFIG_FEATURE_DD_STATUS=y
CONFIG_DF=y
CONFIG_FEATURE_DF_FANCY=y
CONFIG_DIRNAME=y
CONFIG_DOS2UNIX=y
CONFIG_UNIX2DOS=y
CONFIG_DU=y
CONFIG_FEATURE_DU_DEFAULT_BLOCKSIZE_1K=y
CONFIG_ECHO=y
CONFIG_FEATURE_FANCY_ECHO=y
CONFIG_ENV=y
CONFIG_EXPAND=y
CONFIG_UNEXPAND=y
CONFIG_EXPR=y
CONFIG_EXPR_MATH_SUPPORT_64=y
CONFIG_FACTOR=y
CONFIG_FALSE=y
CONFIG_FOLD=y
CONFIG_HEAD=y
CONFIG_FEATURE_FANCY_HEAD=y
CONFIG_HOSTID=y
CONFIG_ID=y
CONFIG_GROUPS=y
CONFIG_INSTALL=y
CONFIG_FEATURE_INSTALL_LONG_OPTIONS=y
CONFIG_LINK=y
CONFIG_LN=y
CONFIG_LOGNAME=y
CONFIG_LS=y
CONFIG_FEATURE_LS_FILETYPES=y
CONFIG_FEATURE_LS_FOLLOWLINKS=y
CONFIG_FEATURE_LS_RECURSIVE=y
CONFIG_FEATURE_LS_WIDTH=y
CONFIG_FEATURE_LS_SORTFILES=y
CONFIG_FEATURE_LS_TIMESTAMPS=y
CONFIG_FEATURE_LS_USERNAME=y
CONFIG_FEATURE_LS_COLOR=y
CONFIG_FEATURE_LS_COLOR_IS_DEFAULT=y
CONFIG_MD5SUM=y
CONFIG_SHA1SUM=y
CONFIG_SHA256SUM=y
CONFIG_SHA512SUM=y
CONFIG_SHA3SUM=y
#
# Common options for md5sum, sha1sum, sha256sum, sha512sum, sha3sum
#
CONFIG_FEATURE_MD5_SHA1_SUM_CHECK=y
CONFIG_MKDIR=y
CONFIG_MKFIFO=y
CONFIG_MKNOD=y
CONFIG_MKTEMP=y
CONFIG_MV=y
CONFIG_NICE=y
CONFIG_NL=y
CONFIG_NOHUP=y
CONFIG_NPROC=y
CONFIG_OD=y
CONFIG_PASTE=y
CONFIG_PRINTENV=y
CONFIG_PRINTF=y
CONFIG_PWD=y
CONFIG_READLINK=y
CONFIG_FEATURE_READLINK_FOLLOW=y
CONFIG_REALPATH=y
CONFIG_RM=y
CONFIG_RMDIR=y
CONFIG_SEQ=y
CONFIG_SHRED=y
CONFIG_SHUF=y
CONFIG_SLEEP=y
CONFIG_FEATURE_FANCY_SLEEP=y
CONFIG_SORT=y
CONFIG_FEATURE_SORT_BIG=y
# CONFIG_FEATURE_SORT_OPTIMIZE_MEMORY is not set
CONFIG_SPLIT=y
CONFIG_FEATURE_SPLIT_FANCY=y
CONFIG_STAT=y
CONFIG_FEATURE_STAT_FORMAT=y
CONFIG_FEATURE_STAT_FILESYSTEM=y
CONFIG_STTY=y
CONFIG_SUM=y
CONFIG_SYNC=y
CONFIG_FEATURE_SYNC_FANCY=y
CONFIG_FSYNC=y
CONFIG_TAC=y
CONFIG_TAIL=y
CONFIG_FEATURE_FANCY_TAIL=y
CONFIG_TEE=y
CONFIG_FEATURE_TEE_USE_BLOCK_IO=y
CONFIG_TEST=y
CONFIG_TEST1=y
CONFIG_TEST2=y
CONFIG_FEATURE_TEST_64=y
CONFIG_TIMEOUT=y
CONFIG_TOUCH=y
CONFIG_FEATURE_TOUCH_NODEREF=y
CONFIG_FEATURE_TOUCH_SUSV3=y
CONFIG_TR=y
CONFIG_FEATURE_TR_CLASSES=y
CONFIG_FEATURE_TR_EQUIV=y
CONFIG_TRUE=y
CONFIG_TRUNCATE=y
CONFIG_TTY=y
CONFIG_UNAME=y
CONFIG_UNAME_OSNAME="GNU/Linux"
CONFIG_BB_ARCH=y
CONFIG_UNIQ=y
CONFIG_UNLINK=y
CONFIG_USLEEP=y
CONFIG_UUDECODE=y
CONFIG_BASE32=y
CONFIG_BASE64=y
CONFIG_UUENCODE=y
CONFIG_WC=y
CONFIG_FEATURE_WC_LARGE=y
CONFIG_WHO=y
CONFIG_W=y
CONFIG_USERS=y
CONFIG_WHOAMI=y
CONFIG_YES=y
#
# Common options
#
CONFIG_FEATURE_VERBOSE=y
#
# Common options for cp and mv
#
CONFIG_FEATURE_PRESERVE_HARDLINKS=y
#
# Common options for df, du, ls
#
CONFIG_FEATURE_HUMAN_READABLE=y
#
# Console Utilities
#
CONFIG_CHVT=y
CONFIG_CLEAR=y
CONFIG_DEALLOCVT=y
CONFIG_DUMPKMAP=y
CONFIG_FGCONSOLE=y
CONFIG_KBD_MODE=y
CONFIG_LOADFONT=y
CONFIG_SETFONT=y
CONFIG_FEATURE_SETFONT_TEXTUAL_MAP=y
CONFIG_DEFAULT_SETFONT_DIR=""
#
# Common options for loadfont and setfont
#
CONFIG_FEATURE_LOADFONT_PSF2=y
CONFIG_FEATURE_LOADFONT_RAW=y
CONFIG_LOADKMAP=y
CONFIG_OPENVT=y
CONFIG_RESET=y
CONFIG_RESIZE=y
CONFIG_FEATURE_RESIZE_PRINT=y
CONFIG_SETCONSOLE=y
CONFIG_FEATURE_SETCONSOLE_LONG_OPTIONS=y
CONFIG_SETKEYCODES=y
CONFIG_SETLOGCONS=y
CONFIG_SHOWKEY=y
#
# Debian Utilities
#
CONFIG_PIPE_PROGRESS=y
CONFIG_RUN_PARTS=y
CONFIG_FEATURE_RUN_PARTS_LONG_OPTIONS=y
CONFIG_FEATURE_RUN_PARTS_FANCY=y
CONFIG_START_STOP_DAEMON=y
CONFIG_FEATURE_START_STOP_DAEMON_LONG_OPTIONS=y
CONFIG_FEATURE_START_STOP_DAEMON_FANCY=y
CONFIG_WHICH=y
#
# klibc-utils
#
# CONFIG_MINIPS is not set
CONFIG_NUKE=y
CONFIG_RESUME=y
CONFIG_RUN_INIT=y
#
# Editors
#
CONFIG_AWK=y
CONFIG_FEATURE_AWK_LIBM=y
CONFIG_FEATURE_AWK_GNU_EXTENSIONS=y
CONFIG_CMP=y
CONFIG_DIFF=y
CONFIG_FEATURE_DIFF_LONG_OPTIONS=y
CONFIG_FEATURE_DIFF_DIR=y
CONFIG_ED=y
CONFIG_PATCH=y
CONFIG_SED=y
CONFIG_VI=y
CONFIG_FEATURE_VI_MAX_LEN=4096
# CONFIG_FEATURE_VI_8BIT is not set
CONFIG_FEATURE_VI_COLON=y
CONFIG_FEATURE_VI_YANKMARK=y
CONFIG_FEATURE_VI_SEARCH=y
# CONFIG_FEATURE_VI_REGEX_SEARCH is not set
CONFIG_FEATURE_VI_USE_SIGNALS=y
CONFIG_FEATURE_VI_DOT_CMD=y
CONFIG_FEATURE_VI_READONLY=y
CONFIG_FEATURE_VI_SETOPTS=y
CONFIG_FEATURE_VI_SET=y
CONFIG_FEATURE_VI_WIN_RESIZE=y
CONFIG_FEATURE_VI_ASK_TERMINAL=y
CONFIG_FEATURE_VI_UNDO=y
CONFIG_FEATURE_VI_UNDO_QUEUE=y
CONFIG_FEATURE_VI_UNDO_QUEUE_MAX=256
CONFIG_FEATURE_ALLOW_EXEC=y
#
# Finding Utilities
#
CONFIG_FIND=y
CONFIG_FEATURE_FIND_PRINT0=y
CONFIG_FEATURE_FIND_MTIME=y
CONFIG_FEATURE_FIND_MMIN=y
CONFIG_FEATURE_FIND_PERM=y
CONFIG_FEATURE_FIND_TYPE=y
CONFIG_FEATURE_FIND_EXECUTABLE=y
CONFIG_FEATURE_FIND_XDEV=y
CONFIG_FEATURE_FIND_MAXDEPTH=y
CONFIG_FEATURE_FIND_NEWER=y
CONFIG_FEATURE_FIND_INUM=y
CONFIG_FEATURE_FIND_EXEC=y
CONFIG_FEATURE_FIND_EXEC_PLUS=y
CONFIG_FEATURE_FIND_USER=y
CONFIG_FEATURE_FIND_GROUP=y
CONFIG_FEATURE_FIND_NOT=y
CONFIG_FEATURE_FIND_DEPTH=y
CONFIG_FEATURE_FIND_PAREN=y
CONFIG_FEATURE_FIND_SIZE=y
CONFIG_FEATURE_FIND_PRUNE=y
CONFIG_FEATURE_FIND_QUIT=y
CONFIG_FEATURE_FIND_DELETE=y
CONFIG_FEATURE_FIND_EMPTY=y
CONFIG_FEATURE_FIND_PATH=y
CONFIG_FEATURE_FIND_REGEX=y
# CONFIG_FEATURE_FIND_CONTEXT is not set
CONFIG_FEATURE_FIND_LINKS=y
CONFIG_GREP=y
CONFIG_EGREP=y
CONFIG_FGREP=y
CONFIG_FEATURE_GREP_CONTEXT=y
CONFIG_XARGS=y
CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION=y
CONFIG_FEATURE_XARGS_SUPPORT_QUOTES=y
CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT=y
CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM=y
CONFIG_FEATURE_XARGS_SUPPORT_REPL_STR=y
CONFIG_FEATURE_XARGS_SUPPORT_PARALLEL=y
CONFIG_FEATURE_XARGS_SUPPORT_ARGS_FILE=y
#
# Init Utilities
#
CONFIG_BOOTCHARTD=y
CONFIG_FEATURE_BOOTCHARTD_BLOATED_HEADER=y
CONFIG_FEATURE_BOOTCHARTD_CONFIG_FILE=y
CONFIG_HALT=y
CONFIG_POWEROFF=y
CONFIG_REBOOT=y
CONFIG_FEATURE_WAIT_FOR_INIT=y
# CONFIG_FEATURE_CALL_TELINIT is not set
CONFIG_TELINIT_PATH=""
CONFIG_INIT=y
CONFIG_LINUXRC=y
CONFIG_FEATURE_USE_INITTAB=y
# CONFIG_FEATURE_KILL_REMOVED is not set
CONFIG_FEATURE_KILL_DELAY=0
CONFIG_FEATURE_INIT_SCTTY=y
CONFIG_FEATURE_INIT_SYSLOG=y
CONFIG_FEATURE_INIT_QUIET=y
# CONFIG_FEATURE_INIT_COREDUMPS is not set
CONFIG_INIT_TERMINAL_TYPE="linux"
CONFIG_FEATURE_INIT_MODIFY_CMDLINE=y
#
# Login/Password Management Utilities
#
CONFIG_FEATURE_SHADOWPASSWDS=y
CONFIG_USE_BB_PWD_GRP=y
CONFIG_USE_BB_SHADOW=y
CONFIG_USE_BB_CRYPT=y
CONFIG_USE_BB_CRYPT_SHA=y
CONFIG_ADD_SHELL=y
CONFIG_REMOVE_SHELL=y
CONFIG_ADDGROUP=y
CONFIG_FEATURE_ADDUSER_TO_GROUP=y
CONFIG_ADDUSER=y
# CONFIG_FEATURE_CHECK_NAMES is not set
CONFIG_LAST_ID=60000
CONFIG_FIRST_SYSTEM_ID=100
CONFIG_LAST_SYSTEM_ID=999
CONFIG_CHPASSWD=y
CONFIG_FEATURE_DEFAULT_PASSWD_ALGO="des"
CONFIG_CRYPTPW=y
CONFIG_MKPASSWD=y
CONFIG_DELUSER=y
CONFIG_DELGROUP=y
CONFIG_FEATURE_DEL_USER_FROM_GROUP=y
CONFIG_GETTY=y
CONFIG_LOGIN=y
# CONFIG_LOGIN_SESSION_AS_CHILD is not set
CONFIG_LOGIN_SCRIPTS=y
CONFIG_FEATURE_NOLOGIN=y
CONFIG_FEATURE_SECURETTY=y
CONFIG_PASSWD=y
CONFIG_FEATURE_PASSWD_WEAK_CHECK=y
CONFIG_SU=y
CONFIG_FEATURE_SU_SYSLOG=y
CONFIG_FEATURE_SU_CHECKS_SHELLS=y
# CONFIG_FEATURE_SU_BLANK_PW_NEEDS_SECURE_TTY is not set
CONFIG_SULOGIN=y
CONFIG_VLOCK=y
#
# Linux Ext2 FS Progs
#
CONFIG_CHATTR=y
CONFIG_FSCK=y
CONFIG_LSATTR=y
# CONFIG_TUNE2FS is not set
#
# Linux Module Utilities
#
CONFIG_MODPROBE_SMALL=y
CONFIG_DEPMOD=y
CONFIG_INSMOD=y
CONFIG_LSMOD=y
# CONFIG_FEATURE_LSMOD_PRETTY_2_6_OUTPUT is not set
CONFIG_MODINFO=y
CONFIG_MODPROBE=y
# CONFIG_FEATURE_MODPROBE_BLACKLIST is not set
CONFIG_RMMOD=y
#
# Options common to multiple modutils
#
CONFIG_FEATURE_CMDLINE_MODULE_OPTIONS=y
CONFIG_FEATURE_MODPROBE_SMALL_CHECK_ALREADY_LOADED=y
# CONFIG_FEATURE_2_4_MODULES is not set
# CONFIG_FEATURE_INSMOD_VERSION_CHECKING is not set
# CONFIG_FEATURE_INSMOD_KSYMOOPS_SYMBOLS is not set
# CONFIG_FEATURE_INSMOD_LOADINKMEM is not set
# CONFIG_FEATURE_INSMOD_LOAD_MAP is not set
# CONFIG_FEATURE_INSMOD_LOAD_MAP_FULL is not set
# CONFIG_FEATURE_CHECK_TAINTED_MODULE is not set
# CONFIG_FEATURE_INSMOD_TRY_MMAP is not set
# CONFIG_FEATURE_MODUTILS_ALIAS is not set
# CONFIG_FEATURE_MODUTILS_SYMBOLS is not set
CONFIG_DEFAULT_MODULES_DIR="/lib/modules"
CONFIG_DEFAULT_DEPMOD_FILE="modules.dep"
#
# Linux System Utilities
#
CONFIG_ACPID=y
CONFIG_FEATURE_ACPID_COMPAT=y
CONFIG_BLKDISCARD=y
CONFIG_BLKID=y
CONFIG_FEATURE_BLKID_TYPE=y
CONFIG_BLOCKDEV=y
CONFIG_CAL=y
CONFIG_CHRT=y
CONFIG_DMESG=y
CONFIG_FEATURE_DMESG_PRETTY=y
CONFIG_EJECT=y
CONFIG_FEATURE_EJECT_SCSI=y
CONFIG_FALLOCATE=y
CONFIG_FATATTR=y
CONFIG_FBSET=y
CONFIG_FEATURE_FBSET_FANCY=y
CONFIG_FEATURE_FBSET_READMODE=y
CONFIG_FDFORMAT=y
CONFIG_FDISK=y
# CONFIG_FDISK_SUPPORT_LARGE_DISKS is not set
CONFIG_FEATURE_FDISK_WRITABLE=y
# CONFIG_FEATURE_AIX_LABEL is not set
# CONFIG_FEATURE_SGI_LABEL is not set
# CONFIG_FEATURE_SUN_LABEL is not set
# CONFIG_FEATURE_OSF_LABEL is not set
# CONFIG_FEATURE_GPT_LABEL is not set
CONFIG_FEATURE_FDISK_ADVANCED=y
CONFIG_FINDFS=y
CONFIG_FLOCK=y
CONFIG_FDFLUSH=y
CONFIG_FREERAMDISK=y
CONFIG_FSCK_MINIX=y
CONFIG_FSFREEZE=y
CONFIG_FSTRIM=y
CONFIG_GETOPT=y
CONFIG_FEATURE_GETOPT_LONG=y
CONFIG_HEXDUMP=y
CONFIG_HD=y
CONFIG_XXD=y
CONFIG_HWCLOCK=y
# CONFIG_FEATURE_HWCLOCK_ADJTIME_FHS is not set
CONFIG_IONICE=y
CONFIG_IPCRM=y
CONFIG_IPCS=y
CONFIG_LAST=y
CONFIG_FEATURE_LAST_FANCY=y
CONFIG_LOSETUP=y
CONFIG_LSPCI=y
CONFIG_LSUSB=y
CONFIG_MDEV=y
CONFIG_FEATURE_MDEV_CONF=y
CONFIG_FEATURE_MDEV_RENAME=y
CONFIG_FEATURE_MDEV_RENAME_REGEXP=y
CONFIG_FEATURE_MDEV_EXEC=y
CONFIG_FEATURE_MDEV_LOAD_FIRMWARE=y
CONFIG_FEATURE_MDEV_DAEMON=y
CONFIG_MESG=y
CONFIG_FEATURE_MESG_ENABLE_ONLY_GROUP=y
CONFIG_MKE2FS=y
CONFIG_MKFS_EXT2=y
CONFIG_MKFS_MINIX=y
CONFIG_FEATURE_MINIX2=y
# CONFIG_MKFS_REISER is not set
CONFIG_MKDOSFS=y
CONFIG_MKFS_VFAT=y
CONFIG_MKSWAP=y
CONFIG_FEATURE_MKSWAP_UUID=y
CONFIG_MORE=y
CONFIG_MOUNT=y
CONFIG_FEATURE_MOUNT_FAKE=y
CONFIG_FEATURE_MOUNT_VERBOSE=y
# CONFIG_FEATURE_MOUNT_HELPERS is not set
CONFIG_FEATURE_MOUNT_LABEL=y
# CONFIG_FEATURE_MOUNT_NFS is not set
CONFIG_FEATURE_MOUNT_CIFS=y
CONFIG_FEATURE_MOUNT_FLAGS=y
CONFIG_FEATURE_MOUNT_FSTAB=y
CONFIG_FEATURE_MOUNT_OTHERTAB=y
CONFIG_MOUNTPOINT=y
CONFIG_NOLOGIN=y
# CONFIG_NOLOGIN_DEPENDENCIES is not set
CONFIG_NSENTER=y
CONFIG_PIVOT_ROOT=y
CONFIG_RDATE=y
CONFIG_RDEV=y
CONFIG_READPROFILE=y
CONFIG_RENICE=y
CONFIG_REV=y
CONFIG_RTCWAKE=y
CONFIG_SCRIPT=y
CONFIG_SCRIPTREPLAY=y
CONFIG_SETARCH=y
CONFIG_LINUX32=y
CONFIG_LINUX64=y
CONFIG_SETPRIV=y
CONFIG_FEATURE_SETPRIV_DUMP=y
CONFIG_FEATURE_SETPRIV_CAPABILITIES=y
CONFIG_FEATURE_SETPRIV_CAPABILITY_NAMES=y
CONFIG_SETSID=y
CONFIG_SWAPON=y
CONFIG_FEATURE_SWAPON_DISCARD=y
CONFIG_FEATURE_SWAPON_PRI=y
CONFIG_SWAPOFF=y
CONFIG_FEATURE_SWAPONOFF_LABEL=y
CONFIG_SWITCH_ROOT=y
CONFIG_TASKSET=y
CONFIG_FEATURE_TASKSET_FANCY=y
CONFIG_FEATURE_TASKSET_CPULIST=y
CONFIG_UEVENT=y
CONFIG_UMOUNT=y
CONFIG_FEATURE_UMOUNT_ALL=y
CONFIG_UNSHARE=y
CONFIG_WALL=y
#
# Common options for mount/umount
#
CONFIG_FEATURE_MOUNT_LOOP=y
CONFIG_FEATURE_MOUNT_LOOP_CREATE=y
# CONFIG_FEATURE_MTAB_SUPPORT is not set
CONFIG_VOLUMEID=y
#
# Filesystem/Volume identification
#
CONFIG_FEATURE_VOLUMEID_BCACHE=y
CONFIG_FEATURE_VOLUMEID_BTRFS=y
CONFIG_FEATURE_VOLUMEID_CRAMFS=y
CONFIG_FEATURE_VOLUMEID_EROFS=y
CONFIG_FEATURE_VOLUMEID_EXFAT=y
CONFIG_FEATURE_VOLUMEID_EXT=y
CONFIG_FEATURE_VOLUMEID_F2FS=y
CONFIG_FEATURE_VOLUMEID_FAT=y
CONFIG_FEATURE_VOLUMEID_HFS=y
CONFIG_FEATURE_VOLUMEID_ISO9660=y
CONFIG_FEATURE_VOLUMEID_JFS=y
CONFIG_FEATURE_VOLUMEID_LFS=y
CONFIG_FEATURE_VOLUMEID_LINUXRAID=y
CONFIG_FEATURE_VOLUMEID_LINUXSWAP=y
CONFIG_FEATURE_VOLUMEID_LUKS=y
CONFIG_FEATURE_VOLUMEID_MINIX=y
CONFIG_FEATURE_VOLUMEID_NILFS=y
CONFIG_FEATURE_VOLUMEID_NTFS=y
CONFIG_FEATURE_VOLUMEID_OCFS2=y
CONFIG_FEATURE_VOLUMEID_REISERFS=y
CONFIG_FEATURE_VOLUMEID_ROMFS=y
CONFIG_FEATURE_VOLUMEID_SQUASHFS=y
CONFIG_FEATURE_VOLUMEID_SYSV=y
CONFIG_FEATURE_VOLUMEID_UBIFS=y
CONFIG_FEATURE_VOLUMEID_UDF=y
CONFIG_FEATURE_VOLUMEID_XFS=y
#
# Miscellaneous Utilities
#
CONFIG_ADJTIMEX=y
# CONFIG_BBCONFIG is not set
# CONFIG_FEATURE_COMPRESS_BBCONFIG is not set
CONFIG_BC=y
CONFIG_DC=y
CONFIG_FEATURE_DC_BIG=y
# CONFIG_FEATURE_DC_LIBM is not set
CONFIG_FEATURE_BC_INTERACTIVE=y
CONFIG_FEATURE_BC_LONG_OPTIONS=y
CONFIG_BEEP=y
CONFIG_FEATURE_BEEP_FREQ=4000
CONFIG_FEATURE_BEEP_LENGTH_MS=30
CONFIG_CHAT=y
CONFIG_FEATURE_CHAT_NOFAIL=y
# CONFIG_FEATURE_CHAT_TTY_HIFI is not set
CONFIG_FEATURE_CHAT_IMPLICIT_CR=y
CONFIG_FEATURE_CHAT_SWALLOW_OPTS=y
CONFIG_FEATURE_CHAT_SEND_ESCAPES=y
CONFIG_FEATURE_CHAT_VAR_ABORT_LEN=y
CONFIG_FEATURE_CHAT_CLR_ABORT=y
CONFIG_CONSPY=y
CONFIG_CROND=y
CONFIG_FEATURE_CROND_D=y
CONFIG_FEATURE_CROND_CALL_SENDMAIL=y
CONFIG_FEATURE_CROND_SPECIAL_TIMES=y
CONFIG_FEATURE_CROND_DIR="/var/spool/cron"
CONFIG_CRONTAB=y
# CONFIG_DEVFSD is not set
# CONFIG_DEVFSD_MODLOAD is not set
# CONFIG_DEVFSD_FG_NP is not set
# CONFIG_DEVFSD_VERBOSE is not set
# CONFIG_FEATURE_DEVFS is not set
CONFIG_DEVMEM=y
CONFIG_FBSPLASH=y
# CONFIG_FLASH_ERASEALL is not set
# CONFIG_FLASH_LOCK is not set
# CONFIG_FLASH_UNLOCK is not set
# CONFIG_FLASHCP is not set
CONFIG_HDPARM=y
CONFIG_FEATURE_HDPARM_GET_IDENTITY=y
CONFIG_FEATURE_HDPARM_HDIO_SCAN_HWIF=y
CONFIG_FEATURE_HDPARM_HDIO_UNREGISTER_HWIF=y
CONFIG_FEATURE_HDPARM_HDIO_DRIVE_RESET=y
CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF=y
CONFIG_FEATURE_HDPARM_HDIO_GETSET_DMA=y
CONFIG_HEXEDIT=y
CONFIG_I2CGET=y
CONFIG_I2CSET=y
CONFIG_I2CDUMP=y
CONFIG_I2CDETECT=y
CONFIG_I2CTRANSFER=y
# CONFIG_INOTIFYD is not set
CONFIG_LESS=y
CONFIG_FEATURE_LESS_MAXLINES=9999999
CONFIG_FEATURE_LESS_BRACKETS=y
CONFIG_FEATURE_LESS_FLAGS=y
CONFIG_FEATURE_LESS_TRUNCATE=y
CONFIG_FEATURE_LESS_MARKS=y
CONFIG_FEATURE_LESS_REGEXP=y
CONFIG_FEATURE_LESS_WINCH=y
CONFIG_FEATURE_LESS_ASK_TERMINAL=y
CONFIG_FEATURE_LESS_DASHCMD=y
CONFIG_FEATURE_LESS_LINENUMS=y
CONFIG_FEATURE_LESS_RAW=y
CONFIG_FEATURE_LESS_ENV=y
CONFIG_LSSCSI=y
CONFIG_MAKEDEVS=y
# CONFIG_FEATURE_MAKEDEVS_LEAF is not set
CONFIG_FEATURE_MAKEDEVS_TABLE=y
CONFIG_MAN=y
CONFIG_MICROCOM=y
CONFIG_MIM=y
CONFIG_MT=y
CONFIG_NANDWRITE=y
CONFIG_NANDDUMP=y
CONFIG_PARTPROBE=y
CONFIG_RAIDAUTORUN=y
CONFIG_READAHEAD=y
# CONFIG_RFKILL is not set
CONFIG_RUNLEVEL=y
CONFIG_RX=y
CONFIG_SETFATTR=y
CONFIG_SETSERIAL=y
CONFIG_STRINGS=y
CONFIG_TIME=y
CONFIG_TS=y
CONFIG_TTYSIZE=y
CONFIG_UBIATTACH=y
CONFIG_UBIDETACH=y
CONFIG_UBIMKVOL=y
CONFIG_UBIRMVOL=y
CONFIG_UBIRSVOL=y
CONFIG_UBIUPDATEVOL=y
CONFIG_UBIRENAME=y
CONFIG_VOLNAME=y
CONFIG_WATCHDOG=y
#
# Networking Utilities
#
CONFIG_FEATURE_IPV6=y
# CONFIG_FEATURE_UNIX_LOCAL is not set
CONFIG_FEATURE_PREFER_IPV4_ADDRESS=y
# CONFIG_VERBOSE_RESOLUTION_ERRORS is not set
# CONFIG_FEATURE_TLS_SHA1 is not set
CONFIG_ARP=y
CONFIG_ARPING=y
CONFIG_BRCTL=y
CONFIG_FEATURE_BRCTL_FANCY=y
CONFIG_FEATURE_BRCTL_SHOW=y
CONFIG_DNSD=y
CONFIG_ETHER_WAKE=y
CONFIG_FTPD=y
CONFIG_FEATURE_FTPD_WRITE=y
CONFIG_FEATURE_FTPD_ACCEPT_BROKEN_LIST=y
CONFIG_FEATURE_FTPD_AUTHENTICATION=y
CONFIG_FTPGET=y
CONFIG_FTPPUT=y
CONFIG_FEATURE_FTPGETPUT_LONG_OPTIONS=y
CONFIG_HOSTNAME=y
CONFIG_DNSDOMAINNAME=y
CONFIG_HTTPD=y
CONFIG_FEATURE_HTTPD_RANGES=y
CONFIG_FEATURE_HTTPD_SETUID=y
CONFIG_FEATURE_HTTPD_BASIC_AUTH=y
CONFIG_FEATURE_HTTPD_AUTH_MD5=y
CONFIG_FEATURE_HTTPD_CGI=y
CONFIG_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR=y
CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV=y
CONFIG_FEATURE_HTTPD_ENCODE_URL_STR=y
CONFIG_FEATURE_HTTPD_ERROR_PAGES=y
CONFIG_FEATURE_HTTPD_PROXY=y
CONFIG_FEATURE_HTTPD_GZIP=y
CONFIG_FEATURE_HTTPD_ETAG=y
CONFIG_FEATURE_HTTPD_LAST_MODIFIED=y
CONFIG_FEATURE_HTTPD_DATE=y
CONFIG_FEATURE_HTTPD_ACL_IP=y
CONFIG_IFCONFIG=y
CONFIG_FEATURE_IFCONFIG_STATUS=y
CONFIG_FEATURE_IFCONFIG_SLIP=y
CONFIG_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ=y
CONFIG_FEATURE_IFCONFIG_HW=y
CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS=y
CONFIG_IFENSLAVE=y
CONFIG_IFPLUGD=y
CONFIG_IFUP=y
CONFIG_IFDOWN=y
CONFIG_IFUPDOWN_IFSTATE_PATH="/var/run/ifstate"
CONFIG_FEATURE_IFUPDOWN_IP=y
CONFIG_FEATURE_IFUPDOWN_IPV4=y
CONFIG_FEATURE_IFUPDOWN_IPV6=y
CONFIG_FEATURE_IFUPDOWN_MAPPING=y
# CONFIG_FEATURE_IFUPDOWN_EXTERNAL_DHCP is not set
CONFIG_INETD=y
CONFIG_FEATURE_INETD_SUPPORT_BUILTIN_ECHO=y
CONFIG_FEATURE_INETD_SUPPORT_BUILTIN_DISCARD=y
CONFIG_FEATURE_INETD_SUPPORT_BUILTIN_TIME=y
CONFIG_FEATURE_INETD_SUPPORT_BUILTIN_DAYTIME=y
CONFIG_FEATURE_INETD_SUPPORT_BUILTIN_CHARGEN=y
# CONFIG_FEATURE_INETD_RPC is not set
CONFIG_IP=y
CONFIG_IPADDR=y
CONFIG_IPLINK=y
CONFIG_IPROUTE=y
CONFIG_IPTUNNEL=y
CONFIG_IPRULE=y
CONFIG_IPNEIGH=y
CONFIG_FEATURE_IP_ADDRESS=y
CONFIG_FEATURE_IP_LINK=y
CONFIG_FEATURE_IP_ROUTE=y
CONFIG_FEATURE_IP_ROUTE_DIR="/etc/iproute2"
CONFIG_FEATURE_IP_TUNNEL=y
CONFIG_FEATURE_IP_RULE=y
CONFIG_FEATURE_IP_NEIGH=y
# CONFIG_FEATURE_IP_RARE_PROTOCOLS is not set
CONFIG_IPCALC=y
CONFIG_FEATURE_IPCALC_LONG_OPTIONS=y
CONFIG_FEATURE_IPCALC_FANCY=y
CONFIG_FAKEIDENTD=y
CONFIG_NAMEIF=y
CONFIG_FEATURE_NAMEIF_EXTENDED=y
CONFIG_NBDCLIENT=y
CONFIG_NC=y
# CONFIG_NETCAT is not set
CONFIG_NC_SERVER=y
CONFIG_NC_EXTRA=y
CONFIG_NC_110_COMPAT=y
CONFIG_NETSTAT=y
CONFIG_FEATURE_NETSTAT_WIDE=y
CONFIG_FEATURE_NETSTAT_PRG=y
CONFIG_NSLOOKUP=y
CONFIG_FEATURE_NSLOOKUP_BIG=y
CONFIG_FEATURE_NSLOOKUP_LONG_OPTIONS=y
CONFIG_NTPD=y
CONFIG_FEATURE_NTPD_SERVER=y
CONFIG_FEATURE_NTPD_CONF=y
CONFIG_FEATURE_NTP_AUTH=y
CONFIG_PING=y
CONFIG_PING6=y
CONFIG_FEATURE_FANCY_PING=y
CONFIG_PSCAN=y
CONFIG_ROUTE=y
CONFIG_SLATTACH=y
CONFIG_SSL_CLIENT=y
CONFIG_TC=y
CONFIG_FEATURE_TC_INGRESS=y
CONFIG_TCPSVD=y
CONFIG_UDPSVD=y
CONFIG_TELNET=y
CONFIG_FEATURE_TELNET_TTYPE=y
CONFIG_FEATURE_TELNET_AUTOLOGIN=y
CONFIG_FEATURE_TELNET_WIDTH=y
CONFIG_TELNETD=y
CONFIG_FEATURE_TELNETD_STANDALONE=y
CONFIG_FEATURE_TELNETD_INETD_WAIT=y
CONFIG_TFTP=y
CONFIG_FEATURE_TFTP_PROGRESS_BAR=y
CONFIG_FEATURE_TFTP_HPA_COMPAT=y
CONFIG_TFTPD=y
CONFIG_FEATURE_TFTP_GET=y
CONFIG_FEATURE_TFTP_PUT=y
CONFIG_FEATURE_TFTP_BLOCKSIZE=y
# CONFIG_TFTP_DEBUG is not set
CONFIG_TLS=y
CONFIG_TRACEROUTE=y
CONFIG_TRACEROUTE6=y
CONFIG_FEATURE_TRACEROUTE_VERBOSE=y
CONFIG_FEATURE_TRACEROUTE_USE_ICMP=y
CONFIG_TUNCTL=y
CONFIG_FEATURE_TUNCTL_UG=y
CONFIG_VCONFIG=y
CONFIG_WGET=y
CONFIG_FEATURE_WGET_LONG_OPTIONS=y
CONFIG_FEATURE_WGET_STATUSBAR=y
CONFIG_FEATURE_WGET_AUTHENTICATION=y
CONFIG_FEATURE_WGET_TIMEOUT=y
CONFIG_FEATURE_WGET_HTTPS=y
CONFIG_FEATURE_WGET_OPENSSL=y
CONFIG_WHOIS=y
CONFIG_ZCIP=y
CONFIG_UDHCPD=y
# CONFIG_FEATURE_UDHCPD_BASE_IP_ON_MAC is not set
CONFIG_FEATURE_UDHCPD_WRITE_LEASES_EARLY=y
CONFIG_DHCPD_LEASES_FILE="/var/lib/misc/udhcpd.leases"
CONFIG_DUMPLEASES=y
CONFIG_DHCPRELAY=y
CONFIG_UDHCPC=y
CONFIG_FEATURE_UDHCPC_ARPING=y
CONFIG_FEATURE_UDHCPC_SANITIZEOPT=y
CONFIG_UDHCPC_DEFAULT_SCRIPT="/usr/share/udhcpc/default.script"
CONFIG_UDHCPC6=y
CONFIG_FEATURE_UDHCPC6_RFC3646=y
CONFIG_FEATURE_UDHCPC6_RFC4704=y
CONFIG_FEATURE_UDHCPC6_RFC4833=y
CONFIG_FEATURE_UDHCPC6_RFC5970=y
#
# Common options for DHCP applets
#
# CONFIG_FEATURE_UDHCP_PORT is not set
CONFIG_UDHCP_DEBUG=2
CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS=80
CONFIG_FEATURE_UDHCP_RFC3397=y
CONFIG_FEATURE_UDHCP_8021Q=y
CONFIG_IFUPDOWN_UDHCPC_CMD_OPTIONS="-R -n"
#
# Print Utilities
#
CONFIG_LPD=y
CONFIG_LPR=y
CONFIG_LPQ=y
#
# Mail Utilities
#
CONFIG_MAKEMIME=y
CONFIG_POPMAILDIR=y
CONFIG_FEATURE_POPMAILDIR_DELIVERY=y
CONFIG_REFORMIME=y
CONFIG_FEATURE_REFORMIME_COMPAT=y
CONFIG_SENDMAIL=y
CONFIG_FEATURE_MIME_CHARSET="us-ascii"
#
# Process Utilities
#
CONFIG_FREE=y
CONFIG_FUSER=y
CONFIG_IOSTAT=y
CONFIG_KILL=y
CONFIG_KILLALL=y
CONFIG_KILLALL5=y
CONFIG_LSOF=y
CONFIG_MPSTAT=y
CONFIG_NMETER=y
CONFIG_PGREP=y
CONFIG_PKILL=y
CONFIG_PIDOF=y
CONFIG_FEATURE_PIDOF_SINGLE=y
CONFIG_FEATURE_PIDOF_OMIT=y
CONFIG_PMAP=y
CONFIG_POWERTOP=y
CONFIG_FEATURE_POWERTOP_INTERACTIVE=y
CONFIG_PS=y
# CONFIG_FEATURE_PS_WIDE is not set
# CONFIG_FEATURE_PS_LONG is not set
CONFIG_FEATURE_PS_TIME=y
# CONFIG_FEATURE_PS_UNUSUAL_SYSTEMS is not set
CONFIG_FEATURE_PS_ADDITIONAL_COLUMNS=y
CONFIG_PSTREE=y
CONFIG_PWDX=y
CONFIG_SMEMCAP=y
CONFIG_BB_SYSCTL=y
CONFIG_TOP=y
CONFIG_FEATURE_TOP_INTERACTIVE=y
CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE=y
CONFIG_FEATURE_TOP_CPU_GLOBAL_PERCENTS=y
CONFIG_FEATURE_TOP_SMP_CPU=y
CONFIG_FEATURE_TOP_DECIMALS=y
CONFIG_FEATURE_TOP_SMP_PROCESS=y
CONFIG_FEATURE_TOPMEM=y
CONFIG_UPTIME=y
CONFIG_FEATURE_UPTIME_UTMP_SUPPORT=y
CONFIG_WATCH=y
CONFIG_FEATURE_SHOW_THREADS=y
#
# Runit Utilities
#
CONFIG_CHPST=y
CONFIG_SETUIDGID=y
CONFIG_ENVUIDGID=y
CONFIG_ENVDIR=y
CONFIG_SOFTLIMIT=y
CONFIG_RUNSV=y
CONFIG_RUNSVDIR=y
# CONFIG_FEATURE_RUNSVDIR_LOG is not set
CONFIG_SV=y
CONFIG_SV_DEFAULT_SERVICE_DIR="/var/service"
CONFIG_SVC=y
CONFIG_SVOK=y
CONFIG_SVLOGD=y
# CONFIG_CHCON is not set
# CONFIG_GETENFORCE is not set
# CONFIG_GETSEBOOL is not set
# CONFIG_LOAD_POLICY is not set
# CONFIG_MATCHPATHCON is not set
# CONFIG_RUNCON is not set
# CONFIG_SELINUXENABLED is not set
# CONFIG_SESTATUS is not set
# CONFIG_SETENFORCE is not set
# CONFIG_SETFILES is not set
# CONFIG_FEATURE_SETFILES_CHECK_OPTION is not set
# CONFIG_RESTORECON is not set
# CONFIG_SETSEBOOL is not set
#
# Shells
#
CONFIG_SH_IS_ASH=y
# CONFIG_SH_IS_HUSH is not set
# CONFIG_SH_IS_NONE is not set
# CONFIG_BASH_IS_ASH is not set
# CONFIG_BASH_IS_HUSH is not set
CONFIG_BASH_IS_NONE=y
CONFIG_SHELL_ASH=y
CONFIG_ASH=y
CONFIG_ASH_OPTIMIZE_FOR_SIZE=y
CONFIG_ASH_INTERNAL_GLOB=y
CONFIG_ASH_BASH_COMPAT=y
# CONFIG_ASH_BASH_SOURCE_CURDIR is not set
CONFIG_ASH_BASH_NOT_FOUND_HOOK=y
CONFIG_ASH_JOB_CONTROL=y
CONFIG_ASH_ALIAS=y
CONFIG_ASH_RANDOM_SUPPORT=y
CONFIG_ASH_EXPAND_PRMT=y
CONFIG_ASH_IDLE_TIMEOUT=y
CONFIG_ASH_MAIL=y
CONFIG_ASH_ECHO=y
CONFIG_ASH_PRINTF=y
CONFIG_ASH_TEST=y
CONFIG_ASH_HELP=y
CONFIG_ASH_GETOPTS=y
CONFIG_ASH_CMDCMD=y
CONFIG_CTTYHACK=y
CONFIG_HUSH=y
CONFIG_SHELL_HUSH=y
CONFIG_HUSH_BASH_COMPAT=y
CONFIG_HUSH_BRACE_EXPANSION=y
CONFIG_HUSH_LINENO_VAR=y
# CONFIG_HUSH_BASH_SOURCE_CURDIR is not set
CONFIG_HUSH_INTERACTIVE=y
CONFIG_HUSH_SAVEHISTORY=y
CONFIG_HUSH_JOB=y
CONFIG_HUSH_TICK=y
CONFIG_HUSH_IF=y
CONFIG_HUSH_LOOPS=y
CONFIG_HUSH_CASE=y
CONFIG_HUSH_FUNCTIONS=y
CONFIG_HUSH_LOCAL=y
CONFIG_HUSH_RANDOM_SUPPORT=y
CONFIG_HUSH_MODE_X=y
CONFIG_HUSH_ECHO=y
CONFIG_HUSH_PRINTF=y
CONFIG_HUSH_TEST=y
CONFIG_HUSH_HELP=y
CONFIG_HUSH_EXPORT=y
CONFIG_HUSH_EXPORT_N=y
CONFIG_HUSH_READONLY=y
CONFIG_HUSH_KILL=y
CONFIG_HUSH_WAIT=y
CONFIG_HUSH_COMMAND=y
CONFIG_HUSH_TRAP=y
CONFIG_HUSH_TYPE=y
CONFIG_HUSH_TIMES=y
CONFIG_HUSH_READ=y
CONFIG_HUSH_SET=y
CONFIG_HUSH_UNSET=y
CONFIG_HUSH_ULIMIT=y
CONFIG_HUSH_UMASK=y
CONFIG_HUSH_GETOPTS=y
# CONFIG_HUSH_MEMLEAK is not set
#
# Options common to all shells
#
CONFIG_FEATURE_SH_MATH=y
CONFIG_FEATURE_SH_MATH_64=y
CONFIG_FEATURE_SH_MATH_BASE=y
CONFIG_FEATURE_SH_EXTRA_QUIET=y
# CONFIG_FEATURE_SH_STANDALONE is not set
# CONFIG_FEATURE_SH_NOFORK is not set
CONFIG_FEATURE_SH_READ_FRAC=y
CONFIG_FEATURE_SH_HISTFILESIZE=y
CONFIG_FEATURE_SH_EMBEDDED_SCRIPTS=y
#
# System Logging Utilities
#
CONFIG_KLOGD=y
#
# klogd should not be used together with syslog to kernel printk buffer
#
CONFIG_FEATURE_KLOGD_KLOGCTL=y
CONFIG_LOGGER=y
CONFIG_LOGREAD=y
CONFIG_FEATURE_LOGREAD_REDUCED_LOCKING=y
CONFIG_SYSLOGD=y
CONFIG_FEATURE_ROTATE_LOGFILE=y
CONFIG_FEATURE_REMOTE_LOG=y
CONFIG_FEATURE_SYSLOGD_DUP=y
CONFIG_FEATURE_SYSLOGD_CFG=y
# CONFIG_FEATURE_SYSLOGD_PRECISE_TIMESTAMPS is not set
CONFIG_FEATURE_SYSLOGD_READ_BUFFER_SIZE=256
CONFIG_FEATURE_IPC_SYSLOG=y
CONFIG_FEATURE_IPC_SYSLOG_BUFFER_SIZE=16
CONFIG_FEATURE_KMSG_SYSLOG=y
编译完成将输出到output/busybox/路径下创建bin、sbin、usr三个目录以及linuxrc文件，观察输出的可执行文件基本上包含了常见的linux工具集，细心观察可以发现，其实这些文件都是软连接均链接到了位于bin/busybox这个可执行文件。阅读busybox源码就可以发现这个程序会根据传入的第0个参数确定执行那个工具，会调研XX_main这样的函数，其中sbin/init就是busybox-1.33.1/init/init.c:1039的init_main函数入口。ok，接下来拷贝busybox输出到根文件系统的rootfs分区下。
cp -r $SHELL_FOLDER/output/busybox/* $SHELL_FOLDER/output/rootfs/rootfs/
打包生成根文件系统，现在我们可以尝试启动qemu看看效果了。
看起来init已经开始运行，但终端还是没有打开，在busybox-1.33.1/examples/inittab:48可以看一段说明，init需要使用一个/etc/inittab文件去配置init的启动流程，如果没有则会使用下面的默认行为：
# Note: BusyBox init works just fine without an inittab. If no inittab is
# found, it has the following default behavior:
# ::sysinit:/etc/init.d/rcS
# ::askfirst:/bin/sh
# ::ctrlaltdel:/sbin/reboot
# ::shutdown:/sbin/swapoff -a
# ::shutdown:/bin/umount -a -r
# ::restart:/sbin/init
# tty2::askfirst:/bin/sh
# tty3::askfirst:/bin/sh
# tty4::askfirst:/bin/sh
ok，本节对busybox有所了解并成功编译了这个工具包，但是要想彻底运行busybox，还需要了解更多的配置脚本，关于这些配置说明，下一节我们将详细讲解这部分内容。
本教程的
github仓库：https://github.com/QQxiaoming/quard_star_tutorial
gitee仓库：https://gitee.com/QQxiaoming/quard_star_tutorial
本节所在tag：ch12