Linux系统下移植busybox中mkfs.vfat命令

为了延长磁盘寿命来存储音视频文件，打发在格式化磁盘过程中将簇的大小设置大点。因为存储的音视频文件现对较大，那么将簇大小设置得尽可能大，这样可以增强磁盘读取数据的性能，同时也不会浪费太多空间。

但发现我们设备的mkfs.vfat不支持-s参数设置簇的大小。

于是打算重新移植mkfs.vfat.

思路1

重新移植busybox

1.官网上下载最新的busybox源码

2.修改makefile

				?

									arch =arm

									cross_compile = /opt/hisi-linux-nptl/arm-hisiv100-linux/target/bin/arm-hisiv100nptl-linux-

2.make menuconfig

设置为静态库

3.make

出现错误

				?

									make: *** [busybox_unstripped] error 1

									root@chenwr-pc:/home/soft/busybox-1.31.0# make

									 link  busybox_unstripped

									your linker does not support --sort-section,alignment

									your linker does not support --sort-common

									static linking against glibc, can't use --gc-sections

									trying libraries: crypt m resolv

									failed: -wl,--start-group -lcrypt -lm -lresolv -wl,--end-group

									output of:

									/opt/hisi-linux-nptl/arm-hisiv100-linux/target/bin/arm-hisiv100nptl-linux-gcc -wall -wshadow -wwrite-strings -wundef -wstrict-prototypes -wunused -wunused-parameter -wunused-function -wunused-value -wmissing-prototypes -wmissing-declarations -wno-format-security -wdeclaration-after-statement -wold-style-definition -fno-builtin-strlen -finline-limit=0 -fomit-frame-pointer -ffunction-sections -fdata-sections -fno-guess-branch-probability -funsigned-char -static-libgcc -falign-functions=1 -falign-jumps=1 -falign-labels=1 -falign-loops=1 -fno-unwind-tables -fno-asynchronous-unwind-tables -fno-builtin-printf -os -static -march=armv7l -o busybox_unstripped -wl,--start-group applets/built-in.o archival/lib.a archival/libarchive/lib.a console-tools/lib.a coreutils/lib.a coreutils/libcoreutils/lib.a debianutils/lib.a klibc-utils/lib.a e2fsprogs/lib.a editors/lib.a findutils/lib.a init/lib.a libbb/lib.a libpwdgrp/lib.a loginutils/lib.a mailutils/lib.a miscutils/lib.a modutils/lib.a networking/lib.a networking/libiproute/lib.a networking/udhcp/lib.a printutils/lib.a procps/lib.a runit/lib.a selinux/lib.a shell/lib.a sysklogd/lib.a util-linux/lib.a util-linux/volume_id/lib.a archival/built-in.o archival/libarchive/built-in.o console-tools/built-in.o coreutils/built-in.o coreutils/libcoreutils/built-in.o debianutils/built-in.o klibc-utils/built-in.o e2fsprogs/built-in.o editors/built-in.o findutils/built-in.o init/built-in.o libbb/built-in.o libpwdgrp/built-in.o loginutils/built-in.o mailutils/built-in.o miscutils/built-in.o modutils/built-in.o networking/built-in.o networking/libiproute/built-in.o networking/udhcp/built-in.o printutils/built-in.o procps/built-in.o runit/built-in.o selinux/built-in.o shell/built-in.o sysklogd/built-in.o util-linux/built-in.o util-linux/volume_id/built-in.o -wl,--end-group -wl,--start-group -lcrypt -lm -lresolv -wl,--end-group

									==========

									networking/lib.a(ipcalc.o): in function `ipcalc_main':

									ipcalc.c:(.text.ipcalc_main+0x24c): warning: gethostbyaddr is obsolescent, use getaddrinfo() instead.

									libbb/lib.a(inet_common.o): in function `inet_resolve':

									inet_common.c:(.text.inet_resolve+0x60): warning: gethostbyname is obsolescent, use getnameinfo() instead.

									coreutils/lib.a(mktemp.o): in function `mktemp_main':

									mktemp.c:(.text.mktemp_main+0x8c): warning: the use of `mktemp' is dangerous, better use `mkstemp'

									networking/lib.a(nslookup.o): in function `add_query':

									nslookup.c:(.text.add_query+0x70): undefined reference to `res_mkquery'

									networking/lib.a(nslookup.o): in function `send_queries':

									nslookup.c:(.text.send_queries+0x2d0): undefined reference to `__ns_initparse'

									nslookup.c:(.text.send_queries+0x308): undefined reference to `__ns_parserr'

									nslookup.c:(.text.send_queries+0x480): undefined reference to `__ns_get16'

									nslookup.c:(.text.send_queries+0x5cc): undefined reference to `__ns_get32'

									nslookup.c:(.text.send_queries+0x5e4): undefined reference to `__ns_get32'

									nslookup.c:(.text.send_queries+0x5fc): undefined reference to `__ns_get32'

									nslookup.c:(.text.send_queries+0x614): undefined reference to `__ns_get32'

									nslookup.c:(.text.send_queries+0x628): undefined reference to `__ns_get32'

									util-linux/lib.a(fallocate.o): in function `fallocate_main':

									fallocate.c:(.text.fallocate_main+0x80): undefined reference to `posix_fallocate'

									util-linux/lib.a(unshare.o): in function `unshare_main':

									unshare.c:(.text.unshare_main+0x1ec): undefined reference to `unshare'

									collect2: ld returned 1 exit status

									note: if build needs additional libraries, put them in config_extra_ldlibs.

									example: config_extra_ldlibs="pthread dl tirpc audit pam"

									make: *** [busybox_unstripped] error 1