glibc

一、先升级gcc 这里配置yum源来升级 centos6系列更换阿里yum源 1.首先备份原来的cent os官方yum源 cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak 2.获取阿里的yum源覆盖本地官方yum源 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo 3.清理yum缓存，并生成新的缓存 yum clean all yum makecache 二、升级glibc版本到指定版本，也可以自己下载别的版本 1）产生原因 是由于Linux系统的glibc版本太低，而软件编译时使用了较高版本的glibc引起的！ 查看系统glibc支持的版本 [root@localhost ~] # strings /lib64/libc.so.6 |grep GLIBC_ GLIBC_2.2.5 GLIBC_2.2.6 GLIBC_2.3 GLIBC_2.3.2 GLIBC_2.3.3 GLIBC_2.3.4 GLIBC_2.4 GLIBC_2.5 GLIBC_2.6 GLIBC_2.7 GLIBC_2.8 GLIBC_2.9 GLIBC_2.10 GLIBC_2.11

I fill like my google searching skills are poor right now, couldn't find a list implementation in glibc, found hash and tree implementations but not a list one. Is there any glibc implementation for that? I don't want to reformat the linux kernel linked list macros and use them in userspace. You can use insque(3) and remque(3) There's /usr/include/sys/queue.h which contains various linked list variants.(more than the man page documents) Here's an example for a TAIL_QUEUE: Run it through the preprocessor (gcc -E -c prog.c) to easier see how it works under the hood) #include <stdio.h> #include

Glancing at the source code of GNU C Library,I found the inet_ntoa is implementated with static __thread char buffer[18] My question is, since there is a need to use reeentrant inet_ntoa,why do not the author of GNU C Library use malloc to implementate it? thanks. The reason it's not using the heap is to conform with standards (POSIX) and other systems. The interface is just not such that you are supposed to free the buffer returned. It assumes static storage.. But by declaring it as thread local (with __thread ), two threads do not conflict with each other if they happen to both be calling

I am a bit confused how glibc on linux allocates its memory to various program.These are the few questions: Is it been allocated from a common heap(i.e is there a common heap across all of the processes in linux) or is there one heap allocated for every process in the system. Also suppose if I am compiling one static library and it finally gets statically linked to the main process, how it will get its memory? Is it already linked with some other heap(as we already compiled it) or will gets its memory from the main process's heap. There is no common heap in the libc sense - this would violate

Here is the source I was browsing: glibc source . My particular question arises from this particular set of functions: socket library . For example(most of the functions are set up this way) socket/bind.c 's source is: 19 #include <errno.h> 20 #include <sys/socket.h> 21 22 /* Give the socket FD the local address ADDR (which is LEN bytes long). */ 23 int 24 __bind (fd, addr, len) 25 int fd; 26 __CONST_SOCKADDR_ARG addr; 27 socklen_t len; 28 { 29 __set_errno (ENOSYS); 30 return -1; 31 } 32 33 weak_alias (__bind, bind) 34 35 stub_warning (bind) 36 #include <stub-tag.h> I admit I didn't spend a

I am trying to launch chromedriver on CentOS 6. More about the OS <code>[root@localhost bin]# uname --all Linux localhost.localdomain 2.6.32-358.el6.x86_64 #1 SMP Fri Feb 22 00:31:26 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux</code> It throws the following error: [root@localhost bin]# ./chromedriver ./chromedriver: /lib64/libc.so.6: version `GLIBC_2.15' not found (required by ./chromedriver) ./chromedriver: /lib64/libc.so.6: version `GLIBC_2.14' not found (required by ./chromedriver) ./chromedriver: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.15' not found (required by ./chromedriver) Looking

11.1 LAMP架构 LAMP 是Linux、 Apache、 MySQL、 PHP的简写，其实就是把Apache、MySQL以及PHP安装在Linux系统上，组成一个环境来运行php的脚本语言。至于什么是php脚本语言，这边不介绍。Apache是最常用的WEB服务软件，而MySQL是比较小型的数据库软件，这两个软件以及PHP都可以安装到windows的机器上。 PHP 是以模块的形式和 Apache 结合成一个整体的，但是 Apache 不能直接和 MySQL 打交道，只能通过 PHP 这个模块来互相沟通，这个过程叫动态的请求。举个例子，密码登录网页的时候，是一个动态过程，在 Apache 显示的网页登入口输入密码，再通过 PHP 模块到 MySQL 上进行数据比对，密码正确或是错误再通过 PHP 反馈给 Apache，然后显示在浏览器上。上图中的静态文件，类似网页上的logo等图片，Apache 通过静态文件取出的图片等，是不需要经过 MySQL 数据的，可以直接显示在浏览器上，所以是静态请求。MySQL 里面不能存图片等，存的是用户名密码、积分、文字等数据。 11.2 MySQL_MariaDB 介绍 11.3 MySQL安装 MySQL 安装包推荐使用二进制免编译。 首先下载一下安装包，进入网址 r.aminglinux.com 查找最新的 MySQL 二进制安装包

【mysql】mysql5.7&CentOS6.8二进制方式安装 2018年05月18日 11:32:18 debimeng 阅读数：2726 版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/debimeng/article/details/80362087 mysql5.7&CentOS6.8二进制方式安装 --环境描述 系统： CentOS6.8_x86_64 mysql： mysqlmysql-5.7.21 安装包：mysql-5.7.21-linux-glibc2.12-x86_64.tar.gz #注二进制安装包 安装包地址： https://dev.mysql.com/downloads/mysql/5.7.html#downloads 注：二进制包的话Select Operating System:这里勾选Linux-Generic --将mysql二进制包上传到服务器并解压 先创建/data，然后将安装包上传到这里 # mkdir /data 解压安装包到/data目录 # tar zxvf mysql-5.7.21-linux-glibc2.12-x86_64.tar.gz -C /data #注意如果需要解压到指定的目录需要加-C参数 更改文件夹名 # mv /data/mysql-5.7.21-linux

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have just installed CentOS 6 64bit version, I'm trying to install a 32-bit application on a 64-bit machine and got this error: /lib/ld-linux.so.2: bad ELF interpreter: No such file or directory I'm new to linux. How do I resolve this? 回答1: You're on a 64-bit system, and don't have 32-bit library support installed. To install (baseline) support for 32-bit executables Most desktop Linux systems in the Fedora/Red Hat family: pkcon install glibc.i686 Possibly some desktop Debian/Ubuntu systems?: pkcon install ia32-libs Fedora or newer Red Hat,