一、準(zhǔn)備

環(huán)境：ubuntu22.04為剛剛安裝，未安裝gcc等包

vi ~/.bashrc輸入

export PATH=$PATH:/opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin

保存,reboot

安裝：

sudo apt install cmake
sudo apt install gawk
sudo apt install bison

第一步:安裝glibc-2.34

mkdir build
cd build

../configure --prefix=${PWD}/install \
--build=arm-linux-gnu \
--host=arm-linux-gnu \
--target=arm-linux-gnu \
CC=arm-linux-gnueabihf-gcc \
CXX=arm-linux-gnueabihf-g++ \
CPP=arm-linux-gnueabihf-cpp \
--disable-multilib libc_cv_forced_unwind=yes

make
make install

第二步:編譯gmp-6.1.0

./configure --prefix=${PWD}/install/ --host=arm-linux --disable-assembly CC=arm-linux-gnueabihf-gcc CXX=arm-linux-gnueabihf-g++

make 
make install

第三步:編譯mpfr-3.1.4

./configure --prefix=${PWD}/install --host=arm-linux CC=arm-linux-gnueabihf-gcc CXX=arm-linux-gnueabihf-g++ --with-gmp=/opt/gmp-6.1.0/install

make
make install

第四步:編譯mpc-1.03

./configure --prefix=${PWD}/install --host=arm-linux CC=arm-linux-gnueabihf-gcc CXX=arm-linux-gnueabihf-g++ --with-gmp=/opt/gmp-6.1.0/install --with-mpfr=/opt/mpfr-3.1.4/install

make
make install

第五步:編譯isl-0.18

將/opt/gmp-6.1.0/install/lib目錄下所有庫(kù)文件拷貝到gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/lib/,

然后執(zhí)行

./configure --prefix=${PWD}/install --host=arm-linux CC=arm-linux-gnueabihf-gcc CXX=arm-linux-gnueabihf-g++ --with-gmp-prefix=/opt/gmp-6.1.0/install

make
make install

第六步：編譯gcc-9.5

刪除cc

cd /usr/bin
sudo rm cc
sudo ln -s /opt/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gcc cc
reboot

然后安裝一些庫(kù)，要不然編譯不過(guò)

sudo apt-get install lsb-core lib32stdc++6

然后執(zhí)行

./configure --prefix=${PWD}/build \
--with-gmp=/opt/gmp-6.1.0/install \
--with-mpfr=/opt/mpfr-3.1.4/install \
--with-mpc=/opt/mpc-1.0.3/install \
--with-isl=/opt/isl-0.18/install \
CC=arm-linux-gnueabihf-gcc \
CXX=arm-linux-gnueabihf-g++ \
CPP=arm-linux-gnueabihf-cpp \
--host=arm-linux-gnueabihf \
--target=arm-linux-gnueabihf \
--with-newlib \
--without-headers \
--enable-initfini-array \
--disable-nls \
--disable-shared \
--disable-multilib \
--disable-decimal-float \
--disable-threads \
--disable-libatomic \
--disable-libgomp \
--disable-libquadmath \
--disable-libssp \
--disable-libvtv \
--disable-libstdcxx \
--enable-checking=release \
--enable-languages=c,c++

make -j8 all-gcc
make install-gcc

編譯結(jié)果

編譯gmp遇到問(wèn)題：

問(wèn)題:Oops, mp_limb_t is 64 bits, but the assembler code
解決:https://gist.github.com/cwoac/5844398
I realised the first failure was because it tried to build the 64 bit code on a 32 bit platform.
The attached gist is the failure when running with --32-bit.

This can be worked around by adding --disable-assembly to the configure call

同時(shí)：
sudo apt-get install m4

備注：

gcc-9.5源碼根目錄/contrib/download_prerequisites 里面地有需要依賴(lài)的庫(kù)源碼版本，可以直接執(zhí)行./contrib/download_prerequisites下載文章來(lái)源地址http://www.zghlxwxcb.cn/news/detail-714429.html

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