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本文主要介绍一下,buildroot(buildroot-2018.02.1)的make menuconfig。众所周知,在我们执行menuconfig时,会生成一个图形化界面,然后进行相关的配置。同样,kernel 也有同样的配置方式,buildroot应该是借鉴kernel的。 那么,这个界面到 Read More
posted @ 2018-04-20 10:04 suonikeyinsu Views(959) Comments(0) Diggs(0) Edit
VARIABLES, RECORDS AND FIELDS AWK variables are dynamic; they come into existence when they are first used. Their values are either floating-point num Read More
posted @ 2018-04-19 13:04 suonikeyinsu Views(185) Comments(0) Diggs(0) Edit
Arrays Arrays are subscripted with an expression between square brackets ([ and ]). If the expression is an expression list (expr, expr ...) then the Read More
posted @ 2018-04-19 12:50 suonikeyinsu Views(133) Comments(0) Diggs(0) Edit
match(s, r [, a]) Return the position in s where the regular expression r occurs, or 0 if r is not present, and set the values of RSTART and RLENGTH. Read More
posted @ 2018-04-18 16:28 suonikeyinsu Views(514) Comments(0) Diggs(0) Edit
gsub(r, s [, t]) For each substring matching the regular expression r in the string t, substitute the string s, and return the number of substitutions Read More
posted @ 2018-04-17 10:44 suonikeyinsu Views(850) Comments(0) Diggs(0) Edit
shell函数不同于除“wildcard”函数之外的其它函数。make可以使用它来和外部通信。 函数功能:函数“shell”所实现的功能和shell中的引用(``)相同。实现对命令的扩展。这就意味着需要一个shell 命令作为此函数的参数,函数的返回结果是此命令在shell中的执行结果。make仅仅 Read More
posted @ 2018-04-16 09:54 suonikeyinsu Views(158) Comments(0) Diggs(0) Edit
1 表示stdout标准输出,系统默认值是1,所以">/dev/null"等同于"1>/dev/null" 2 表示stderr标准错误 & 表示等同于的意思,2>&1,表示2的输出重定向等同于1 1>/dev/null 首先表示标准输出重定向到空设备文件,也就是不输出任何信息到终端,说白了就是不显 Read More
posted @ 2018-04-16 09:28 suonikeyinsu Views(182) Comments(0) Diggs(0) Edit
ubuntu 平台: valgrind 3.8.1 一. 编译 ./configure --prefix=/home/frank/test/valgrind/PC/local 报错:checking the GLIBC_VERSION version... unsupported version 2 Read More
posted @ 2018-04-11 16:56 suonikeyinsu Views(1105) Comments(0) Diggs(0) Edit
CONTROL文件夹下的文件意义preinst - shell script,在ipk包开始安装前执行;postinst - shell script,在ipk包安装后执行; prerm - 在ipk包 remove前执行; postrm - 在ipk包 remove后执行; 例如,在openwrt Read More
posted @ 2018-04-04 15:31 suonikeyinsu Views(327) Comments(0) Diggs(0) Edit
1 /** 2 * alloc_chrdev_region() - register a range of char device numbers 3 * @dev: output parameter for first assigned number 4 * @baseminor: first of the requested range of minor numbers 5... Read More
posted @ 2017-11-11 17:40 suonikeyinsu Views(252) Comments(0) Diggs(0) Edit
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