2024年2月20日发(作者：)

因为原先板子上的busybox大小接近2MB,包含的东西太多,现在又需要把系统裁到 16

MB了,

并且原来是static编译的, 并且/lib中存在uclibc库, 应用程序也需要使用, 浪费了。

所以决定重新对busybox进行裁剪，编译为动态链接库，初步估计能省下1.5 MB的宝贵空间。

步骤:

1. 解压

2. 修改Makefile 的 CROSS_COMPILE

3. 根据产品需求配置

make menuconfig

生成的.config文件如下:

#

# Automatically generated make config: don't edit

# Busybox version: 1.12.1

# Sat Oct 11 14:04:08 2008

#

CONFIG_HAVE_DOT_CONFIG=y

#

# Busybox Settings

#

#

# General Configuration

#

# CONFIG_DESKTOP is not set

# CONFIG_EXTRA_COMPAT is not set

CONFIG_FEATURE_ASSUME_UNICODE=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_SHOW_USAGE=y

# CONFIG_FEATURE_VERBOSE_USAGE is not set

# CONFIG_FEATURE_COMPRESS_USAGE is not set

CONFIG_FEATURE_INSTALLER=y

# CONFIG_LOCALE_SUPPORT is not set

CONFIG_GETOPT_LONG=y

# CONFIG_FEATURE_DEVPTS is not set

CONFIG_FEATURE_CLEAN_UP=y

# CONFIG_FEATURE_PIDFILE is not set

CONFIG_FEATURE_SUID=y

# CONFIG_FEATURE_SUID_CONFIG is not set

# CONFIG_FEATURE_SUID_CONFIG_QUIET is not set

# CONFIG_SELINUX is not set

CONFIG_FEATURE_PREFER_APPLETS=y

CONFIG_BUSYBOX_EXEC_PATH="/proc/self/exe"

CONFIG_FEATURE_SYSLOG=y

CONFIG_FEATURE_HAVE_RPC=y

#

# Build Options

#

# CONFIG_STATIC is not set

# CONFIG_PIE is not set

# CONFIG_NOMMU is not set

# CONFIG_BUILD_LIBBUSYBOX is not set

# CONFIG_FEATURE_INDIVIDUAL is not set

# CONFIG_FEATURE_SHARED_BUSYBOX is not set

CONFIG_LFS=y

CONFIG_CROSS_COMPILER_PREFIX="c2-linux-"

#

# Debugging Options

#

# CONFIG_DEBUG is not set

# CONFIG_DEBUG_PESSIMIZE is not set

# CONFIG_WERROR is not set

CONFIG_NO_DEBUG_LIB=y

# CONFIG_DMALLOC is not set

# CONFIG_EFENCE is not set

# CONFIG_INCLUDE_SUSv2 is not set

# CONFIG_PARSE is not set

#

# Installation Options

#

CONFIG_INSTALL_NO_USR=y

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="./_install"

#

# Busybox Library Tuning

#

CONFIG_PASSWORD_MINLEN=6

CONFIG_MD5_SIZE_VS_SPEED=2

CONFIG_FEATURE_FAST_TOP=y

CONFIG_FEATURE_ETC_NETWORKS=y

CONFIG_FEATURE_EDITING=y

CONFIG_FEATURE_EDITING_MAX_LEN=1024

CONFIG_FEATURE_EDITING_VI=y

CONFIG_FEATURE_EDITING_HISTORY=15

CONFIG_FEATURE_EDITING_SAVEHISTORY=y

CONFIG_FEATURE_TAB_COMPLETION=y

CONFIG_FEATURE_USERNAME_COMPLETION=y

CONFIG_FEATURE_EDITING_FANCY_PROMPT=y

CONFIG_FEATURE_VERBOSE_CP_MESSAGE=y

CONFIG_FEATURE_COPYBUF_KB=4

CONFIG_MONOTONIC_SYSCALL=y

CONFIG_IOCTL_HEX2STR_ERROR=y

CONFIG_FEATURE_HWIB=y

#

# Applets

#

#

# Archival Utilities

#

# CONFIG_FEATURE_SEAMLESS_LZMA is not set

# CONFIG_FEATURE_SEAMLESS_BZ2 is not set

# CONFIG_FEATURE_SEAMLESS_GZ is not set

# CONFIG_FEATURE_SEAMLESS_Z is not set

# CONFIG_AR is not set

# CONFIG_FEATURE_AR_LONG_FILENAMES is not set

# CONFIG_BUNZIP2 is not set

# CONFIG_BZIP2 is not set

# CONFIG_CPIO is not set

# CONFIG_FEATURE_CPIO_O is not set

# CONFIG_DPKG is not set

# CONFIG_DPKG_DEB is not set

# CONFIG_FEATURE_DPKG_DEB_EXTRACT_ONLY is not set

# CONFIG_GUNZIP is not set

# CONFIG_GZIP is not set

# CONFIG_RPM2CPIO is not set

# CONFIG_RPM is not set

# CONFIG_TAR is not set

# CONFIG_FEATURE_TAR_CREATE is not set

# CONFIG_FEATURE_TAR_AUTODETECT is not set

# CONFIG_FEATURE_TAR_FROM is not set

# CONFIG_FEATURE_TAR_OLDGNU_COMPATIBILITY is not set

# CONFIG_FEATURE_TAR_OLDSUN_COMPATIBILITY is not set

# CONFIG_FEATURE_TAR_GNU_EXTENSIONS is not set

# CONFIG_FEATURE_TAR_LONG_OPTIONS is not set

# CONFIG_FEATURE_TAR_UNAME_GNAME is not set

# CONFIG_UNCOMPRESS is not set

# CONFIG_UNLZMA is not set

# CONFIG_FEATURE_LZMA_FAST is not set

# CONFIG_UNZIP is not set

#

# Coreutils

#

# CONFIG_BASENAME is not set

# CONFIG_CAL is not set

CONFIG_CAT=y

# CONFIG_CATV is not set

# CONFIG_CHGRP is not set

CONFIG_CHMOD=y

# CONFIG_CHOWN is not set

# CONFIG_CHROOT is not set

# CONFIG_CKSUM is not set

# CONFIG_COMM is not set

CONFIG_CP=y

CONFIG_CUT=y

CONFIG_DATE=y

# CONFIG_FEATURE_DATE_ISOFMT is not set

CONFIG_DD=y

# CONFIG_FEATURE_DD_SIGNAL_HANDLING is not set

# CONFIG_FEATURE_DD_IBS_OBS is not set

CONFIG_DF=y

# CONFIG_FEATURE_DF_INODE is not set

# CONFIG_DIRNAME is not set

# CONFIG_DOS2UNIX is not set

# CONFIG_UNIX2DOS is not set

CONFIG_DU=y

CONFIG_FEATURE_DU_DEFAULT_BLOCKSIZE_1K=y

CONFIG_ECHO=y

CONFIG_FEATURE_FANCY_ECHO=y

# CONFIG_ENV is not set

# CONFIG_FEATURE_ENV_LONG_OPTIONS is not set

# CONFIG_EXPAND is not set

# CONFIG_FEATURE_EXPAND_LONG_OPTIONS is not set

CONFIG_EXPR=y

CONFIG_EXPR_MATH_SUPPORT_64=y

# CONFIG_FALSE is not set

# CONFIG_FOLD is not set

# CONFIG_HEAD is not set

# CONFIG_FEATURE_FANCY_HEAD is not set

# CONFIG_HOSTID is not set

# CONFIG_ID is not set

# CONFIG_INSTALL is not set

# CONFIG_FEATURE_INSTALL_LONG_OPTIONS is not set

# CONFIG_LENGTH is not set

CONFIG_LN=y

# CONFIG_LOGNAME is not set

CONFIG_LS=y

# CONFIG_FEATURE_LS_FILETYPES is not set

# CONFIG_FEATURE_LS_FOLLOWLINKS is not set

# CONFIG_FEATURE_LS_RECURSIVE is not set

# CONFIG_FEATURE_LS_SORTFILES is not set

CONFIG_FEATURE_LS_TIMESTAMPS=y

CONFIG_FEATURE_LS_USERNAME=y

# CONFIG_FEATURE_LS_COLOR is not set

# CONFIG_FEATURE_LS_COLOR_IS_DEFAULT is not set

CONFIG_MD5SUM=y

CONFIG_MKDIR=y

CONFIG_FEATURE_MKDIR_LONG_OPTIONS=y

# CONFIG_MKFIFO is not set

CONFIG_MKNOD=y

CONFIG_MV=y

CONFIG_FEATURE_MV_LONG_OPTIONS=y

# CONFIG_NICE is not set

# CONFIG_NOHUP is not set

# CONFIG_OD is not set

# CONFIG_PRINTENV is not set

# CONFIG_PRINTF is not set

CONFIG_PWD=y

# CONFIG_READLINK is not set

# CONFIG_FEATURE_READLINK_FOLLOW is not set

# CONFIG_REALPATH is not set

CONFIG_RM=y

# CONFIG_RMDIR is not set

# CONFIG_FEATURE_RMDIR_LONG_OPTIONS is not set

CONFIG_SEQ=y

# CONFIG_SHA1SUM is not set

CONFIG_SLEEP=y

# CONFIG_FEATURE_FANCY_SLEEP is not set

# CONFIG_FEATURE_FLOAT_SLEEP is not set

CONFIG_SORT=y

CONFIG_FEATURE_SORT_BIG=y

# CONFIG_SPLIT is not set

# CONFIG_FEATURE_SPLIT_FANCY is not set

CONFIG_STAT=y

CONFIG_FEATURE_STAT_FORMAT=y

CONFIG_STTY=y

# CONFIG_SUM is not set

CONFIG_SYNC=y

# CONFIG_TAC is not set

# CONFIG_TAIL is not set

# CONFIG_FEATURE_FANCY_TAIL is not set

# CONFIG_TEE is not set

# CONFIG_FEATURE_TEE_USE_BLOCK_IO is not set

CONFIG_TEST=y

CONFIG_FEATURE_TEST_64=y

CONFIG_TOUCH=y

CONFIG_TR=y

CONFIG_FEATURE_TR_CLASSES=y

CONFIG_FEATURE_TR_EQUIV=y

CONFIG_TRUE=y

CONFIG_TTY=y

CONFIG_UNAME=y

# CONFIG_UNEXPAND is not set

# CONFIG_FEATURE_UNEXPAND_LONG_OPTIONS is not set

# CONFIG_UNIQ is not set

CONFIG_USLEEP=y

# CONFIG_UUDECODE is not set

# CONFIG_UUENCODE is not set

CONFIG_WC=y

# CONFIG_FEATURE_WC_LARGE is not set

# CONFIG_WHO is not set

# CONFIG_WHOAMI is not set

CONFIG_YES=y

#

# Common options for cp and mv

#

# CONFIG_FEATURE_PRESERVE_HARDLINKS is not set

#

# Common options for ls, more and telnet

#

# CONFIG_FEATURE_AUTOWIDTH is not set

#

# Common options for df, du, ls

#

CONFIG_FEATURE_HUMAN_READABLE=y

#

# Common options for md5sum, sha1sum

#

CONFIG_FEATURE_MD5_SHA1_SUM_CHECK=y

#

# Console Utilities

#

# CONFIG_CHVT is not set

# CONFIG_CLEAR is not set

# CONFIG_DEALLOCVT is not set

# CONFIG_DUMPKMAP is not set

# CONFIG_KBD_MODE is not set

# CONFIG_LOADFONT is not set

# CONFIG_LOADKMAP is not set

# CONFIG_OPENVT is not set

# CONFIG_RESET is not set

# CONFIG_RESIZE is not set

# CONFIG_FEATURE_RESIZE_PRINT is not set

# CONFIG_SETCONSOLE is not set

# CONFIG_FEATURE_SETCONSOLE_LONG_OPTIONS is not set

# CONFIG_SETFONT is not set

# CONFIG_SETKEYCODES is not set

# CONFIG_SETLOGCONS is not set

# CONFIG_SHOWKEY is not set

#

# Debian Utilities

#

# CONFIG_MKTEMP is not set

# CONFIG_PIPE_PROGRESS is not set

# CONFIG_RUN_PARTS is not set

# CONFIG_FEATURE_RUN_PARTS_LONG_OPTIONS is not set

# CONFIG_FEATURE_RUN_PARTS_FANCY is not set

# CONFIG_START_STOP_DAEMON is not set

# CONFIG_FEATURE_START_STOP_DAEMON_FANCY is not set

# CONFIG_FEATURE_START_STOP_DAEMON_LONG_OPTIONS is not set

# CONFIG_WHICH is not set

#

# Editors

#

# CONFIG_AWK is not set

# CONFIG_FEATURE_AWK_MATH is not set

# CONFIG_CMP is not set

CONFIG_DIFF=y

CONFIG_FEATURE_DIFF_BINARY=y

# CONFIG_FEATURE_DIFF_DIR is not set

CONFIG_FEATURE_DIFF_MINIMAL=y

# CONFIG_ED is not set

# CONFIG_PATCH is not set

# CONFIG_SED is not set

CONFIG_VI=y

CONFIG_FEATURE_VI_MAX_LEN=4096

CONFIG_FEATURE_VI_8BIT=y

CONFIG_FEATURE_VI_COLON=y

# CONFIG_FEATURE_VI_YANKMARK is not set

# CONFIG_FEATURE_VI_SEARCH is not set

# CONFIG_FEATURE_VI_USE_SIGNALS is not set

# CONFIG_FEATURE_VI_DOT_CMD is not set

# CONFIG_FEATURE_VI_READONLY is not set

# CONFIG_FEATURE_VI_SETOPTS is not set

# CONFIG_FEATURE_VI_SET is not set

# CONFIG_FEATURE_VI_WIN_RESIZE is not set

# CONFIG_FEATURE_VI_OPTIMIZE_CURSOR is not set

# CONFIG_FEATURE_ALLOW_EXEC is not set

#

# Finding Utilities

#

CONFIG_FIND=y

# CONFIG_FEATURE_FIND_PRINT0 is not set

# CONFIG_FEATURE_FIND_MTIME is not set

# CONFIG_FEATURE_FIND_MMIN is not set

# CONFIG_FEATURE_FIND_PERM is not set

CONFIG_FEATURE_FIND_TYPE=y

# CONFIG_FEATURE_FIND_XDEV is not set

# CONFIG_FEATURE_FIND_MAXDEPTH is not set

# CONFIG_FEATURE_FIND_NEWER is not set

# CONFIG_FEATURE_FIND_INUM is not set

# CONFIG_FEATURE_FIND_EXEC is not set

# CONFIG_FEATURE_FIND_USER is not set

# CONFIG_FEATURE_FIND_GROUP is not set

# CONFIG_FEATURE_FIND_NOT is not set

# CONFIG_FEATURE_FIND_DEPTH is not set

# CONFIG_FEATURE_FIND_PAREN is not set

# CONFIG_FEATURE_FIND_SIZE is not set

# CONFIG_FEATURE_FIND_PRUNE is not set

# CONFIG_FEATURE_FIND_DELETE is not set

# CONFIG_FEATURE_FIND_PATH is not set

# CONFIG_FEATURE_FIND_REGEX is not set

# CONFIG_FEATURE_FIND_CONTEXT is not set

CONFIG_GREP=y

# CONFIG_FEATURE_GREP_EGREP_ALIAS is not set

# CONFIG_FEATURE_GREP_FGREP_ALIAS is not set

# CONFIG_FEATURE_GREP_CONTEXT is not set

# CONFIG_XARGS is not set

# CONFIG_FEATURE_XARGS_SUPPORT_CONFIRMATION is not set

# CONFIG_FEATURE_XARGS_SUPPORT_QUOTES is not set

# CONFIG_FEATURE_XARGS_SUPPORT_TERMOPT is not set

# CONFIG_FEATURE_XARGS_SUPPORT_ZERO_TERM is not set

#

# Init Utilities

#

CONFIG_INIT=y

# CONFIG_DEBUG_INIT is not set

CONFIG_FEATURE_USE_INITTAB=y

CONFIG_FEATURE_KILL_REMOVED=y

CONFIG_FEATURE_KILL_DELAY=0

CONFIG_FEATURE_INIT_SCTTY=y

CONFIG_FEATURE_INIT_SYSLOG=y

CONFIG_FEATURE_EXTRA_QUIET=y

# CONFIG_FEATURE_INIT_COREDUMPS is not set

CONFIG_FEATURE_INITRD=y

CONFIG_HALT=y

CONFIG_MESG=y

#

# Login/Password Management Utilities

#

# CONFIG_FEATURE_SHADOWPASSWDS is not set

# CONFIG_USE_BB_PWD_GRP is not set

# CONFIG_USE_BB_SHADOW is not set

CONFIG_USE_BB_CRYPT=y

# CONFIG_ADDGROUP is not set

# CONFIG_FEATURE_ADDUSER_TO_GROUP is not set

# CONFIG_DELGROUP is not set

# CONFIG_FEATURE_DEL_USER_FROM_GROUP is not set

# CONFIG_FEATURE_CHECK_NAMES is not set

# CONFIG_ADDUSER is not set

# CONFIG_FEATURE_ADDUSER_LONG_OPTIONS is not set

# CONFIG_DELUSER is not set

# CONFIG_GETTY is not set

# CONFIG_FEATURE_UTMP is not set

# CONFIG_FEATURE_WTMP is not set

# CONFIG_LOGIN is not set

# CONFIG_PAM is not set

# CONFIG_LOGIN_SCRIPTS is not set

# CONFIG_FEATURE_NOLOGIN is not set

# CONFIG_FEATURE_SECURETTY is not set

CONFIG_PASSWD=y

CONFIG_FEATURE_PASSWD_WEAK_CHECK=y

# CONFIG_CRYPTPW is not set

# CONFIG_CHPASSWD is not set

# CONFIG_SU is not set

# CONFIG_FEATURE_SU_SYSLOG is not set

# CONFIG_FEATURE_SU_CHECKS_SHELLS is not set

# CONFIG_SULOGIN is not set

# CONFIG_VLOCK is not set

#

# Linux Ext2 FS Progs

#

# CONFIG_CHATTR is not set

# CONFIG_FSCK is not set

# CONFIG_LSATTR is not set

#

# Linux Module Utilities

#

# CONFIG_MODPROBE_SMALL is not set

# CONFIG_FEATURE_MODPROBE_SMALL_OPTIONS_ON_CMDLINE is not set

# CONFIG_FEATURE_MODPROBE_SMALL_CHECK_ALREADY_LOADED is not set

# CONFIG_DEPMOD is not set

# CONFIG_FEATURE_DEPMOD_PRUNE_FANCY is not set

# CONFIG_FEATURE_DEPMOD_ALIAS is not set

# CONFIG_INSMOD 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_RMMOD is not set

# CONFIG_LSMOD is not set

# CONFIG_FEATURE_LSMOD_PRETTY_2_6_OUTPUT is not set

# CONFIG_MODPROBE is not set

# CONFIG_FEATURE_MODPROBE_MULTIPLE_OPTIONS is not set

# CONFIG_FEATURE_MODPROBE_FANCY_ALIAS is not set

# CONFIG_FEATURE_MODPROBE_BLACKLIST is not set

# CONFIG_FEATURE_CHECK_TAINTED_MODULE is not set

# CONFIG_FEATURE_2_4_MODULES is not set

# CONFIG_FEATURE_2_6_MODULES is not set

CONFIG_DEFAULT_MODULES_DIR=""

CONFIG_DEFAULT_DEPMOD_FILE=""

# CONFIG_FEATURE_QUERY_MODULE_INTERFACE is not set

#

# Linux System Utilities

#

CONFIG_DMESG=y

# CONFIG_FEATURE_DMESG_PRETTY is not set

# CONFIG_FBSET is not set

# CONFIG_FEATURE_FBSET_FANCY is not set

# CONFIG_FEATURE_FBSET_READMODE is not set

# CONFIG_FDFLUSH is not set

# CONFIG_FDFORMAT is not set

CONFIG_FDISK=y

CONFIG_FDISK_SUPPORT_LARGE_DISKS=y

CONFIG_FEATURE_FDISK_WRITABLE=y

CONFIG_FEATURE_AIX_LABEL=y

CONFIG_FEATURE_SGI_LABEL=y

CONFIG_FEATURE_SUN_LABEL=y

# CONFIG_FEATURE_OSF_LABEL is not set

# CONFIG_FEATURE_FDISK_ADVANCED is not set

# CONFIG_FINDFS is not set

# CONFIG_FREERAMDISK is not set

# CONFIG_FSCK_MINIX is not set

# CONFIG_MKFS_MINIX is not set

# CONFIG_FEATURE_MINIX2 is not set

CONFIG_GETOPT=y

# CONFIG_HEXDUMP is not set

# CONFIG_FEATURE_HEXDUMP_REVERSE is not set

# CONFIG_HD is not set

CONFIG_HWCLOCK=y

CONFIG_FEATURE_HWCLOCK_LONG_OPTIONS=y

CONFIG_FEATURE_HWCLOCK_ADJTIME_FHS=y

# CONFIG_IPCRM is not set

# CONFIG_IPCS is not set

# CONFIG_LOSETUP is not set

# CONFIG_MDEV is not set

# CONFIG_FEATURE_MDEV_CONF is not set

# CONFIG_FEATURE_MDEV_RENAME is not set

# CONFIG_FEATURE_MDEV_RENAME_REGEXP is not set

# CONFIG_FEATURE_MDEV_EXEC is not set

# CONFIG_FEATURE_MDEV_LOAD_FIRMWARE is not set

# CONFIG_MKSWAP is not set

# CONFIG_FEATURE_MKSWAP_V0 is not set

CONFIG_MORE=y

CONFIG_FEATURE_USE_TERMIOS=y

CONFIG_VOLUMEID=y

CONFIG_FEATURE_VOLUMEID_EXT=y

# CONFIG_FEATURE_VOLUMEID_REISERFS is not set

CONFIG_FEATURE_VOLUMEID_FAT=y

CONFIG_FEATURE_VOLUMEID_HFS=y

CONFIG_FEATURE_VOLUMEID_JFS=y

# CONFIG_FEATURE_VOLUMEID_XFS is not set

CONFIG_FEATURE_VOLUMEID_NTFS=y

CONFIG_FEATURE_VOLUMEID_ISO9660=y

CONFIG_FEATURE_VOLUMEID_UDF=y

# CONFIG_FEATURE_VOLUMEID_LUKS is not set

# CONFIG_FEATURE_VOLUMEID_LINUXSWAP is not set

CONFIG_FEATURE_VOLUMEID_CRAMFS=y

CONFIG_FEATURE_VOLUMEID_ROMFS=y

# CONFIG_FEATURE_VOLUMEID_SYSV is not set

# CONFIG_FEATURE_VOLUMEID_OCFS2 is not set

# CONFIG_FEATURE_VOLUMEID_LINUXRAID is not set

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=y

CONFIG_FEATURE_MOUNT_CIFS=y

CONFIG_FEATURE_MOUNT_FLAGS=y

CONFIG_FEATURE_MOUNT_FSTAB=y

# CONFIG_PIVOT_ROOT is not set

CONFIG_RDATE=y

# CONFIG_RDEV is not set

# CONFIG_READPROFILE is not set

# CONFIG_RTCWAKE is not set

# CONFIG_SCRIPT is not set

# CONFIG_SETARCH is not set

# CONFIG_SWAPONOFF is not set

# CONFIG_FEATURE_SWAPON_PRI is not set

# CONFIG_SWITCH_ROOT is not set

CONFIG_UMOUNT=y

CONFIG_FEATURE_UMOUNT_ALL=y

#

# Common options for mount/umount

#

# CONFIG_FEATURE_MOUNT_LOOP is not set

# CONFIG_FEATURE_MTAB_SUPPORT is not set

#

# Miscellaneous Utilities

#

# CONFIG_ADJTIMEX is not set

# CONFIG_BBCONFIG is not set

# CONFIG_CHAT is not set

# CONFIG_FEATURE_CHAT_NOFAIL is not set

# CONFIG_FEATURE_CHAT_TTY_HIFI is not set

# CONFIG_FEATURE_CHAT_IMPLICIT_CR is not set

# CONFIG_FEATURE_CHAT_SWALLOW_OPTS is not set

# CONFIG_FEATURE_CHAT_SEND_ESCAPES is not set

# CONFIG_FEATURE_CHAT_VAR_ABORT_LEN is not set

# CONFIG_FEATURE_CHAT_CLR_ABORT is not set

# CONFIG_CHRT is not set

# CONFIG_CROND is not set

# CONFIG_DEBUG_CROND_OPTION is not set

# CONFIG_FEATURE_CROND_CALL_SENDMAIL is not set

# CONFIG_CRONTAB is not set

# CONFIG_DC is not set

# 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_EJECT is not set

# CONFIG_FEATURE_EJECT_SCSI is not set

# CONFIG_FBSPLASH is not set

# CONFIG_INOTIFYD is not set

# CONFIG_LAST is not set

# CONFIG_FEATURE_LAST_SMALL is not set

# CONFIG_FEATURE_LAST_FANCY is not set

# CONFIG_LESS is not set

CONFIG_FEATURE_LESS_MAXLINES=

# CONFIG_FEATURE_LESS_BRACKETS is not set

# CONFIG_FEATURE_LESS_FLAGS is not set

# CONFIG_FEATURE_LESS_FLAGCS is not set

# CONFIG_FEATURE_LESS_MARKS is not set

# CONFIG_FEATURE_LESS_REGEXP is not set

# CONFIG_HDPARM is not set

# CONFIG_FEATURE_HDPARM_GET_IDENTITY is not set

# CONFIG_FEATURE_HDPARM_HDIO_SCAN_HWIF is not set

# CONFIG_FEATURE_HDPARM_HDIO_UNREGISTER_HWIF is not set

# CONFIG_FEATURE_HDPARM_HDIO_DRIVE_RESET is not set

# CONFIG_FEATURE_HDPARM_HDIO_TRISTATE_HWIF is not set

# CONFIG_FEATURE_HDPARM_HDIO_GETSET_DMA is not set

# CONFIG_MAKEDEVS is not set

# CONFIG_FEATURE_MAKEDEVS_LEAF is not set

# CONFIG_FEATURE_MAKEDEVS_TABLE is not set

# CONFIG_MAN is not set

# CONFIG_MICROCOM is not set

# CONFIG_MOUNTPOINT is not set

# CONFIG_MT is not set

# CONFIG_RAIDAUTORUN is not set

# CONFIG_READAHEAD is not set

# CONFIG_RUNLEVEL is not set

CONFIG_RX=y

# CONFIG_SETSID is not set

# CONFIG_STRINGS is not set

# CONFIG_TASKSET is not set

# CONFIG_FEATURE_TASKSET_FANCY is not set

# CONFIG_TIME is not set

# CONFIG_TTYSIZE is not set

# CONFIG_WATCHDOG is not set

#

# Networking Utilities

#

CONFIG_FEATURE_IPV6=y

CONFIG_FEATURE_PREFER_IPV4_ADDRESS=y

# CONFIG_VERBOSE_RESOLUTION_ERRORS is not set

# CONFIG_ARP is not set

# CONFIG_ARPING is not set

# CONFIG_BRCTL is not set

# CONFIG_FEATURE_BRCTL_FANCY is not set

# CONFIG_FEATURE_BRCTL_SHOW is not set

# CONFIG_DNSD is not set

# CONFIG_ETHER_WAKE is not set

# CONFIG_FAKEIDENTD is not set

# CONFIG_FTPGET is not set

# CONFIG_FTPPUT is not set

# CONFIG_FEATURE_FTPGETPUT_LONG_OPTIONS is not set

CONFIG_HOSTNAME=y

# CONFIG_HTTPD is not set

# CONFIG_FEATURE_HTTPD_RANGES is not set

# CONFIG_FEATURE_HTTPD_USE_SENDFILE is not set

# CONFIG_FEATURE_HTTPD_RELOAD_CONFIG_SIGHUP is not set

# CONFIG_FEATURE_HTTPD_SETUID is not set

# CONFIG_FEATURE_HTTPD_BASIC_AUTH is not set

# CONFIG_FEATURE_HTTPD_AUTH_MD5 is not set

# CONFIG_FEATURE_HTTPD_CONFIG_WITH_MIME_TYPES is not set

# CONFIG_FEATURE_HTTPD_CGI is not set

# CONFIG_FEATURE_HTTPD_CONFIG_WITH_SCRIPT_INTERPR is not set

# CONFIG_FEATURE_HTTPD_SET_REMOTE_PORT_TO_ENV is not set

# CONFIG_FEATURE_HTTPD_ENCODE_URL_STR is not set

# CONFIG_FEATURE_HTTPD_ERROR_PAGES is not set

# CONFIG_FEATURE_HTTPD_PROXY is not set

CONFIG_IFCONFIG=y

# CONFIG_FEATURE_IFCONFIG_STATUS is not set

# CONFIG_FEATURE_IFCONFIG_SLIP is not set

# CONFIG_FEATURE_IFCONFIG_MEMSTART_IOADDR_IRQ is not set

# CONFIG_FEATURE_IFCONFIG_HW is not set

# CONFIG_FEATURE_IFCONFIG_BROADCAST_PLUS is not set

# CONFIG_IFENSLAVE is not set

# CONFIG_IFUPDOWN is not set

CONFIG_IFUPDOWN_IFSTATE_PATH=""

# CONFIG_FEATURE_IFUPDOWN_IP is not set

# CONFIG_FEATURE_IFUPDOWN_IP_BUILTIN is not set

# CONFIG_FEATURE_IFUPDOWN_IFCONFIG_BUILTIN is not set

# CONFIG_FEATURE_IFUPDOWN_IPV4 is not set

# CONFIG_FEATURE_IFUPDOWN_IPV6 is not set

# CONFIG_FEATURE_IFUPDOWN_MAPPING is not set

# CONFIG_FEATURE_IFUPDOWN_EXTERNAL_DHCP is not set

# CONFIG_INETD is not set

# CONFIG_FEATURE_INETD_SUPPORT_BUILTIN_ECHO is not set

# CONFIG_FEATURE_INETD_SUPPORT_BUILTIN_DISCARD is not set

# CONFIG_FEATURE_INETD_SUPPORT_BUILTIN_TIME is not set

# CONFIG_FEATURE_INETD_SUPPORT_BUILTIN_DAYTIME is not set

# CONFIG_FEATURE_INETD_SUPPORT_BUILTIN_CHARGEN is not set

# CONFIG_FEATURE_INETD_RPC is not set

# CONFIG_IP is not set

# CONFIG_FEATURE_IP_ADDRESS is not set

# CONFIG_FEATURE_IP_LINK is not set

# CONFIG_FEATURE_IP_ROUTE is not set

# CONFIG_FEATURE_IP_TUNNEL is not set

# CONFIG_FEATURE_IP_RULE is not set

# CONFIG_FEATURE_IP_SHORT_FORMS is not set

# CONFIG_FEATURE_IP_RARE_PROTOCOLS is not set

# CONFIG_IPADDR is not set

# CONFIG_IPLINK is not set

# CONFIG_IPROUTE is not set

# CONFIG_IPTUNNEL is not set

# CONFIG_IPRULE is not set

# CONFIG_IPCALC is not set

# CONFIG_FEATURE_IPCALC_FANCY is not set

# CONFIG_FEATURE_IPCALC_LONG_OPTIONS is not set

# CONFIG_NAMEIF is not set

# CONFIG_FEATURE_NAMEIF_EXTENDED is not set

# CONFIG_NC is not set

# CONFIG_NC_SERVER is not set

# CONFIG_NC_EXTRA is not set

# CONFIG_NETSTAT is not set

# CONFIG_FEATURE_NETSTAT_WIDE is not set

# CONFIG_FEATURE_NETSTAT_PRG is not set

CONFIG_NSLOOKUP=y

CONFIG_PING=y

CONFIG_PING6=y

CONFIG_FEATURE_FANCY_PING=y

# CONFIG_PSCAN is not set

# CONFIG_ROUTE is not set

# CONFIG_SENDMAIL is not set

# CONFIG_FETCHMAIL is not set

# CONFIG_SLATTACH is not set

# CONFIG_TELNET is not set

# CONFIG_FEATURE_TELNET_TTYPE is not set

# CONFIG_FEATURE_TELNET_AUTOLOGIN is not set

# CONFIG_TELNETD is not set

# CONFIG_FEATURE_TELNETD_STANDALONE is not set

# CONFIG_TFTP is not set

# CONFIG_TFTPD is not set

# CONFIG_FEATURE_TFTP_GET is not set

# CONFIG_FEATURE_TFTP_PUT is not set

# CONFIG_FEATURE_TFTP_BLOCKSIZE is not set

# CONFIG_DEBUG_TFTP is not set

# CONFIG_TRACEROUTE is not set

# CONFIG_FEATURE_TRACEROUTE_VERBOSE is not set

# CONFIG_FEATURE_TRACEROUTE_SOURCE_ROUTE is not set

# CONFIG_FEATURE_TRACEROUTE_USE_ICMP is not set

# CONFIG_APP_UDHCPD is not set

# CONFIG_APP_DHCPRELAY is not set

# CONFIG_APP_DUMPLEASES is not set

# CONFIG_FEATURE_UDHCPD_WRITE_LEASES_EARLY is not set

CONFIG_DHCPD_LEASES_FILE=""

CONFIG_APP_UDHCPC=y

# CONFIG_FEATURE_UDHCPC_ARPING is not set

# CONFIG_FEATURE_UDHCP_PORT is not set

# CONFIG_FEATURE_UDHCP_DEBUG is not set

# CONFIG_FEATURE_RFC3397 is not set

CONFIG_DHCPC_DEFAULT_SCRIPT="/usr/share/udhcpc/"

CONFIG_UDHCPC_SLACK_FOR_BUGGY_SERVERS=80

# CONFIG_VCONFIG is not set

# CONFIG_WGET is not set

# CONFIG_FEATURE_WGET_STATUSBAR is not set

# CONFIG_FEATURE_WGET_AUTHENTICATION is not set

# CONFIG_FEATURE_WGET_LONG_OPTIONS is not set

# CONFIG_ZCIP is not set

# CONFIG_TCPSVD is not set

# CONFIG_UDPSVD is not set

#

# Process Utilities

#

CONFIG_FREE=y

# CONFIG_FUSER is not set

CONFIG_KILL=y

CONFIG_KILLALL=y

CONFIG_KILLALL5=y

# CONFIG_NMETER is not set

# CONFIG_PGREP is not set

# CONFIG_PIDOF is not set

# CONFIG_FEATURE_PIDOF_SINGLE is not set

# CONFIG_FEATURE_PIDOF_OMIT is not set

# CONFIG_PKILL is not set

CONFIG_PS=y

CONFIG_FEATURE_PS_WIDE=y

# CONFIG_FEATURE_PS_TIME is not set

# CONFIG_FEATURE_PS_UNUSUAL_SYSTEMS is not set

# CONFIG_RENICE is not set

CONFIG_BB_SYSCTL=y

CONFIG_TOP=y

CONFIG_FEATURE_TOP_CPU_USAGE_PERCENTAGE=y

CONFIG_FEATURE_TOP_CPU_GLOBAL_PERCENTS=y

CONFIG_FEATURE_TOP_DECIMALS=y

CONFIG_FEATURE_TOPMEM=y

CONFIG_UPTIME=y

CONFIG_WATCH=y

#

# Shells

#

CONFIG_FEATURE_SH_IS_ASH=y

# CONFIG_FEATURE_SH_IS_HUSH is not set

# CONFIG_FEATURE_SH_IS_MSH is not set

# CONFIG_FEATURE_SH_IS_NONE is not set

CONFIG_ASH=y

#

# Ash Shell Options

#

CONFIG_ASH_BASH_COMPAT=y

CONFIG_ASH_JOB_CONTROL=y

# CONFIG_ASH_READ_NCHARS is not set

# CONFIG_ASH_READ_TIMEOUT is not set

CONFIG_ASH_ALIAS=y

# CONFIG_ASH_MATH_SUPPORT is not set

# CONFIG_ASH_MATH_SUPPORT_64 is not set

CONFIG_ASH_GETOPTS=y

CONFIG_ASH_BUILTIN_ECHO=y

# CONFIG_ASH_BUILTIN_PRINTF is not set

CONFIG_ASH_BUILTIN_TEST=y

# CONFIG_ASH_CMDCMD is not set

# CONFIG_ASH_MAIL is not set

CONFIG_ASH_OPTIMIZE_FOR_SIZE=y

# CONFIG_ASH_RANDOM_SUPPORT is not set

# CONFIG_ASH_EXPAND_PRMT is not set

# CONFIG_HUSH is not set

# CONFIG_HUSH_HELP is not set

# CONFIG_HUSH_INTERACTIVE is not set

# CONFIG_HUSH_JOB is not set

# CONFIG_HUSH_TICK is not set

# CONFIG_HUSH_IF is not set

# CONFIG_HUSH_LOOPS is not set

# CONFIG_HUSH_CASE is not set

# CONFIG_LASH is not set

# CONFIG_MSH is not set

#

# Bourne Shell Options

#

# CONFIG_FEATURE_SH_EXTRA_QUIET is not set

# CONFIG_FEATURE_SH_STANDALONE is not set

# CONFIG_FEATURE_SH_NOFORK is not set

# CONFIG_CTTYHACK is not set

#

# System Logging Utilities

#

CONFIG_SYSLOGD=y

# CONFIG_FEATURE_ROTATE_LOGFILE is not set

# CONFIG_FEATURE_REMOTE_LOG is not set

# CONFIG_FEATURE_SYSLOGD_DUP is not set

# CONFIG_FEATURE_IPC_SYSLOG is not set

CONFIG_FEATURE_IPC_SYSLOG_BUFFER_SIZE=

# CONFIG_LOGREAD is not set

# CONFIG_FEATURE_LOGREAD_REDUCED_LOCKING is not set

# CONFIG_KLOGD is not set

CONFIG_LOGGER=y

#

# Runit Utilities

#

# CONFIG_RUNSV is not set

# CONFIG_RUNSVDIR is not set

# CONFIG_SV is not set

# CONFIG_SVLOGD is not set

# CONFIG_CHPST is not set

# CONFIG_SETUIDGID is not set

# CONFIG_ENVUIDGID is not set

# CONFIG_ENVDIR is not set

# CONFIG_SOFTLIMIT is not set

# CONFIG_CHCON is not set

# CONFIG_FEATURE_CHCON_LONG_OPTIONS 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_RESTORECON is not set

# CONFIG_RUNCON is not set

# CONFIG_FEATURE_RUNCON_LONG_OPTIONS is not set

# CONFIG_SELINUXENABLED is not set

# CONFIG_SETENFORCE is not set

# CONFIG_SETFILES is not set

# CONFIG_FEATURE_SETFILES_CHECK_OPTION is not set

# CONFIG_SETSEBOOL is not set

# CONFIG_SESTATUS is not set

#

# Print Utilities

#

# CONFIG_LPD is not set

# CONFIG_LPR is not set

# CONFIG_LPQ is not set

4. 编译,安装:

make

make install

5. 生成文件及分析：

[tudouren@host busybox-1.12.1]$ my-linux-readelf -a _install/bin/busybox |

grep "Shared"

0x00000001 (NEEDED) Shared library: [.0]

[tudouren@host busybox-1.12.1]$ du -h _install/bin/busybox

516K _install/bin/busybox

基本达到目标了, 再经过flash文件系统压缩应该只有200k左右。

[tudoure@host busybox-1.12.1]$ tree _install/

_install/

|-- bin

| |-- [ -> busybox

| |-- [[ -> busybox

| |-- ash -> busybox

| |-- busybox

| |-- cat -> busybox

| |-- chmod -> busybox

| |-- cp -> busybox

| |-- cut -> busybox

| |-- date -> busybox

| |-- dd -> busybox

| |-- df -> busybox

| |-- diff -> busybox

| |-- dmesg -> busybox

| |-- du -> busybox

| |-- echo -> busybox

| |-- expr -> busybox

| |-- find -> busybox

| |-- free -> busybox

| |-- getopt -> busybox

| |-- grep -> busybox

| |-- hostname -> busybox

| |-- kill -> busybox

| |-- killall -> busybox

| |-- killall5 -> busybox

| |-- ln -> busybox

| |-- logger -> busybox

| |-- ls -> busybox

| |-- md5sum -> busybox

| |-- mesg -> busybox

| |-- mkdir -> busybox

| |-- mknod -> busybox

| |-- more -> busybox

| |-- mount -> busybox

| |-- mv -> busybox

| |-- nslookup -> busybox

| |-- passwd -> busybox

| |-- ping -> busybox

| |-- ping6 -> busybox

| |-- ps -> busybox

| |-- pwd -> busybox

| |-- rm -> busybox

| |-- rx -> busybox

| |-- seq -> busybox

| |-- sh -> busybox

| |-- sleep -> busybox

| |-- sort -> busybox

| |-- stat -> busybox

| |-- stty -> busybox

| |-- sync -> busybox

| |-- test -> busybox

| |-- top -> busybox

| |-- touch -> busybox

| |-- tr -> busybox

| |-- true -> busybox

| |-- tty -> busybox

| |-- umount -> busybox

| |-- uname -> busybox

| |-- uptime -> busybox

| |-- usleep -> busybox

| |-- vi -> busybox

| |-- watch -> busybox

| |-- wc -> busybox

| `-- yes -> busybox

|-- linuxrc -> bin/busybox

`-- sbin

|-- fdisk -> ../bin/busybox

|-- halt -> ../bin/busybox

|-- hwclock -> ../bin/busybox

|-- ifconfig -> ../bin/busybox

|-- init -> ../bin/busybox

|-- poweroff -> ../bin/busybox

|-- rdate -> ../bin/busybox

|-- reboot -> ../bin/busybox

|-- sysctl -> ../bin/busybox

|-- syslogd -> ../bin/busybox

`-- udhcpc -> ../bin/busybox