交叉编译工具环境搭建gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-g...

东方耀

交叉编译工具环境搭建gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu.tar.xz


配置环境变量：
vim .bashrc
export PATH=/home/jiang/my_cross_compile/gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu/bin{PATH}


aarch64-linux-gnu-g++ -v

1. jiang@jiang-Ubuntu:~$ aarch64-linux-gnu-g++ -v
   
2. 使用内建 specs。
   
3. COLLECT_GCC=aarch64-linux-gnu-g++
   
4. COLLECT_LTO_WRAPPER=/home/jiang/my_cross_compile/gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu/bin/../libexec/gcc/aarch64-linux-gnu/7.5.0/lto-wrapper
   
5. 目标：aarch64-linux-gnu
   
6. 配置为：'/home/tcwg-buildslave/workspace/tcwg-make-release_0/snapshots/gcc.git~linaro-7.5-2019.12/configure' SHELL=/bin/bash --with-mpc=/home/tcwg-buildslave/workspace/tcwg-make-release_0/_build/builds/destdir/x86_64-unknown-linux-gnu --with-mpfr=/home/tcwg-buildslave/workspace/tcwg-make-release_0/_build/builds/destdir/x86_64-unknown-linux-gnu --with-gmp=/home/tcwg-buildslave/workspace/tcwg-make-release_0/_build/builds/destdir/x86_64-unknown-linux-gnu --with-gnu-as --with-gnu-ld --disable-libmudflap --enable-lto --enable-shared --without-included-gettext --enable-nls --with-system-zlib --disable-sjlj-exceptions --enable-gnu-unique-object --enable-linker-build-id --disable-libstdcxx-pch --enable-c99 --enable-clocale=gnu --enable-libstdcxx-debug --enable-long-long --with-cloog=no --with-ppl=no --with-isl=no --disable-multilib --enable-fix-cortex-a53-835769 --enable-fix-cortex-a53-843419 --with-arch=armv8-a --enable-threads=posix --enable-multiarch --enable-libstdcxx-time=yes --enable-gnu-indirect-function --with-build-sysroot=/home/tcwg-buildslave/workspace/tcwg-make-release_0/_build/sysroots/aarch64-linux-gnu --with-sysroot=/home/tcwg-buildslave/workspace/tcwg-make-release_0/_build/builds/destdir/x86_64-unknown-linux-gnu/aarch64-linux-gnu/libc --enable-checking=release --disable-bootstrap --enable-languages=c,c++,fortran,lto --build=x86_64-unknown-linux-gnu --host=x86_64-unknown-linux-gnu --target=aarch64-linux-gnu --prefix=/home/tcwg-buildslave/workspace/tcwg-make-release_0/_build/builds/destdir/x86_64-unknown-linux-gnu
   
7. 线程模型：posix
   
8. gcc 版本 7.5.0 (Linaro GCC 7.5-2019.12)
   

复制代码

cmake -DCMAKE_C_COMPILER=aarch64-linux-gnu-gcc -DCMAKE_CXX_COMPILER=aarch64-linux-gnu-g++ ..

1. jiang@jiang-Ubuntu:~/jjj_eigen_works/my_use_eigen_demos/build_arm$ cmake -DCMAKE_C_COMPILER=aarch64-linux-gnu-gcc -DCMAKE_CXX_COMPILER=aarch64-linux-gnu-g++ ..
   
2. -- The C compiler identification is GNU 7.5.0
   
3. -- The CXX compiler identification is GNU 7.5.0
   
4. -- Detecting C compiler ABI info
   
5. -- Detecting C compiler ABI info - done
   
6. -- Check for working C compiler: /home/jiang/my_cross_compile/gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc - skipped
   
7. -- Detecting C compile features
   
8. -- Detecting C compile features - done
   
9. -- Detecting CXX compiler ABI info
   
10. -- Detecting CXX compiler ABI info - done
    
11. -- Check for working CXX compiler: /home/jiang/my_cross_compile/gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-g++ - skipped
    
12. -- Detecting CXX compile features
    
13. -- Detecting CXX compile features - done
    
14. 项目的源码目录：/home/jiang/jjj_eigen_works/my_use_eigen_demos
    
15. -- Configuring done
    
16. -- Generating done
    
17. -- Build files have been written to: /home/jiang/jjj_eigen_works/my_use_eigen_demos/build_arm

复制代码

1. jiang@jiang-Ubuntu:~/jjj_eigen_works/my_use_eigen_demos/build_arm$ file main
   
2. main: ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, for GNU/Linux 3.7.0, BuildID[sha1]=990677c4d5082f0aec31704b17feb08065c02db8, with debug_info, not stripped

复制代码

注意这个：

1. jiang@jiang-Ubuntu:~$ locate ld-linux-aarch64.so
   
2. /home/jiang/jjj_eigen_works/glibc-2.32-2-aarch64.pkg/usr/lib/ld-linux-aarch64.so.1
   
3. /home/jiang/my_cross_compile/gcc-linaro-7.5.0-2019.12-x86_64_aarch64-linux-gnu/aarch64-linux-gnu/libc/lib/ld-linux-aarch64.so.1
   
4. /usr/aarch64-linux-gnu/lib/ld-linux-aarch64.so.1

复制代码