binutils 2.31 is going to change how shared libraries are linked, such that they always provide their own local definitions of the _end, _edata and _bss_start symbols. This would all be fine, except for shared libraries that export all symbols be default. (Rather than just exporting those symbols that form part of their API). According to binutils developers, we should only export the symbols we explicitly want to be used. We don't use this principle for all our libraries and deliberately don't want to have ABI versioning control for all of them, so the change I introduce here is to explicitly mark those symbols that will always be added by default linker configuration with binutils 2.31 as local. Right now these are '_end', '_edata', and '__bss_start' symbols. This was pushed to git master as commit 4e123c46820e737968fa3d1c594aa016cca39637 Author: Alexander Bokovoy <ab@samba.org> Date: Thu Jul 12 10:19:41 2018 +0300 wafsamba/samba_abi: always hide ABI symbols which must be local binutils 2.31 is going to change how shared libraries are linked, such that they always provide their own local definitions of the _end, _edata and _bss_start symbols. This would all be fine, except for shared libraries that export all symbols be default. (Rather than just exporting those symbols that form part of their API). According to binutils developers, we should only export the symbols we explicitly want to be used. We don't use this principle for all our libraries and deliberately don't want to have ABI versioning control for all of them, so the change I introduce here is to explicitly mark those symbols that will always be added by default linker configuration with binutils 2.31 as local. Right now these are '_end', '_edata', and '__bss_start' symbols. Signed-off-by: Alexander Bokovoy <ab@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org> Autobuild-User(master): Andrew Bartlett <abartlet@samba.org> Autobuild-Date(master): Fri Jul 13 17:45:36 CEST 2018 on sn-devel-144
Created attachment 14428 [details] propsed patch forv v4.9
Karolin, please add the patch to 4.9. Thanks.
(In reply to Andreas Schneider from comment #2) Pushed to autobuild-v4-9-test.
(In reply to Karolin Seeger from comment #3) Pushed to v4-9-test. Closing out bug report. Thanks!