linux：centos7升级glibc到2.36

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# 安装依赖的东东

yum install -y gcc gcc-c++ glibc-devel openssl-devel openssl-static zlib-devel lzma tk-devel xz-devel bison bzip2 bzip2-devel ncurses-devel gdbm-devel readline-devel sqlite-devel libffi-devel texinfo libmpc-devel

# 安装make

cd /chz/install/make
wget http://ftp.gnu.org/pub/gnu/make/make-4.4.1.tar.gz
tar zxvf make-4.4.1.tar.gzcd /chz/install/make/make-4.4.1
mkdir build
cd buildcd /chz/install/make/make-4.4.1/build
../configure --prefix=/usr/bash build.sh
make install

# 安装gcc

yum erase gcc-4.8.5-44.el7.x86_64
yum install centos-release-scl
yum install -y devtoolset-8-gcc devtoolset-8-gcc-c++
scl enable devtoolset-8 bash# 看下gcc的版本
gcc -v# 找出gcc的位置
which gcc
<<<< 位置如下：
/opt/rh/devtoolset-8/root/usr/bin/gcc
>>>>vim /etc/profile
<<<< 添加内容：
export PATH=/opt/rh/devtoolset-8/root/usr/bin:$PATH
>>>>

# 安装python3

wget https://www.python.org/ftp/python/3.8.0/Python-3.8.0.tgz
tar -zxf Python-3.8.0.tgz 
cd Python-3.8.0mkdir build
cd buildmkdir /usr/local/python3
../configure --prefix=/usr/local/python3
make -j4
make installvim /etc/profile
<<<< 添加以下内容
export PYTHON3_HOME=/usr/local/python3
export PATH=$PYTHON3_HOME/bin:$PATH
>>>>ls -s /usr/local/python3/bin/python3 /usr/bin/python3

# 安装glibc

wget https://ftp.gnu.org/gnu/glibc/glibc-2.36.tar.gz
tar zxvf glibc-2.36.tar.gz
cd glibc-2.36mkdir build  
cd buildcd /chz/install/glibc/glibc-2.36/build
../configure --prefix=/usr
make -j4
make install

在【make install】的时候如果报错：

gcc: relocation error: /lib64/libc.so.6: symbol __tunable_get_val, version GLIBC_PRIVATE not defined in file ld-linux-x86-64.so.2 with link time reference
make[1]: *** [Makerules:1033: /chz/install/glibc/glibc-2.36/build/format.lds] Error 127
make[1]: Leaving directory '/chz/install/glibc/glibc-2.36'
make: *** [Makefile:12: install] Error 2

解决方案如下：
先运行：

LD_PRELOAD=/lib64/libc-2.17.so sln /chz/install/glibc/glibc-2.36/build/libc.so.6                 /lib64/libc.so.6
LD_PRELOAD=/lib64/libc-2.17.so sln /chz/install/glibc/glibc-2.36/build/dlfcn/libdl.so.2          /lib64/libdl.so.2
LD_PRELOAD=/lib64/libc-2.17.so sln /chz/install/glibc/glibc-2.36/build/nptl/libpthread.so.0      /lib64/libpthread.so.0
LD_PRELOAD=/lib64/libc-2.17.so sln /chz/install/glibc/glibc-2.36/build/elf/ld-linux-x86-64.so.2  /usr/lib64/ld-linux-x86-64.so.2

注意上面的【/lib64/libc-2.17.so】是我机器上的版本号，要换成自己的版本号
注意上面的【/chz/install/glibc/glibc-2.36/build】是我编译glibc的目录，要换成自己的目标
然后再次执行