On Fri, Jan 21, 2022 at 01:04:51PM -0500, Steve Grubb wrote: > Hello, > > This is a continuation of the discussion from F36 Change: GNU Toolchain > Update. snip. > He talks about -ftrivial-auto-var-init=zero being used for production builds > and -ftrivial-auto-var-init=<pattern> being used for debug builds. The use > is not just the kernel. Consider a server that returns data across the > network to a client. It could possibly leak crypto keys or passwords if the > returned data structure has uninitialized memory. snip > I think this would be an important step forward to turn this on across all > compilations. We could wipe out an entire class of bugs in one fell swoop. Fast-forward a few months and I see GCC 12.1 is released now with -ftrivial-auto-var-init option support [2]. Are you going to take this idea forward and make a formal change proposal for Fedora to set -ftrivial-auto-var-init=zero by default in its default RPM build flags ? With regards, Daniel [1] https://gcc.gnu.org/gcc-12/changes.html [2] https://gcc.gnu.org/onlinedocs/gcc-12.1.0/gcc/Optimize-Options.html#index-ftrivial-auto-var-init -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :| _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx 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@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
