Em qua., 4 de dez. de 2019 às 10:16, Tom Hughes <t...@compton.nu> escreveu: > > On 04/12/2019 12:58, Paulo César Pereira de Andrade wrote: > > > Idea about @subject started with ongoing customer support case that > > originated https://bugzilla.redhat.com/show_bug.cgi?id=1778236 > > [Problems linking to zlib corrected if zlib is linked with > > -Bsymbolic-functions] > > when doing some research, it appears Ubuntu has it by default for > > some time. > > > > This is currently only a suggestion and/or request for comments. > > Some extra detail in https://bugzilla.redhat.com/show_bug.cgi?id=1778234 > > [Request For Comments: -Bsymbolic-functions in LDFLAGS by default] > > > > Basically, there would be a few issues, most times in broken code, > > and the valid cases could be worked around removing -Bsymbolic-functions. > > > > The biggest advantages are far less relocations, for example, that > > should mean faster load time, and avoids several issues with symbols > > being clobbered by symbols from another library. > > If I understand correctly then it will also mean that LD_PRELOAD will > not work for any call made from the library to itself, but would still > work for calls made from other libraries.
Not fool proof checked, but I believe this is what would happen. Usually one wants to only LD_PRELOAD to replace some glibc symbol, for some kind of debug, but any library where there valid usages of LD_PRELOAD should not be linked with -Bdynamic-functions. > Tom > > -- > Tom Hughes (t...@compton.nu) > http://compton.nu/ Thanks, Paulo _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org
