rpm制作的包在安装之后发现二进制被压缩改变了，出现了缺少调试信息的现象；
gdb xxx
Reading symbols from xxx...(no debugging symbols found)...done.
编译时已经增加-g选项；且将编译后的二进制直接上传运行环境不会出现此现象，怀疑在rpm制作产生了问题;
经过调研，rpm制作时会strip二进制以达到减少文件大小的目的，此操作默认开启，导致调试信息被strip；
When we create an RPM using rpmbuild, the binary files are stripped. The intention is to reduce the file size, without affecting the functionality. This is the default setting, configured using the rpm macro __os_install_post.
This blog entry talks about how to disable this option.
This is done using the compression scripts, installed as part of rpm-build rpm.
The rpm macro __os_install_post is defined to execute these scripts. The scripts used to compress the binary file size are as follows.
$ rpm --showrc | grep -A 4 ‘: __os_install_post’
-14: __os_install_post
/usr/lib/rpm/brp-compress
/usr/lib/rpm/brp-strip
/usr/lib/rpm/brp-strip-static-archive
/usr/lib/rpm/brp-strip-comment-note
Recently, I had an uncommon requirement to disable this option. I do not want to reduce the file size of all files packaged in the rpm. This is achievable using any of 3 mechanisms.
- Spec file
- ~/.rpmmacros
- /etc/rpm/macros
To prevent binary stripping for specific rpm, we could add following line at the top of any rpm spec file.
%global __os_install_post %{nil}
To prevent binary stripping for all rpms created by specific user, we could add following line in ~/.rpmmacros file:
%__os_install_post %{nil}
To prevent binary stripping for all rpms created by all users, we could add following line in /etc/rpm/macros file:
%__os_install_post %{nil}