On Fri, 25 Sep 2020 13:43:40 +0200, Neal Gompa wrote: > On Fri, Sep 25, 2020 at 7:26 AM Ryan <ryan@xxxxxxxxxxxxx> wrote: > > > > > == Benefit to Fedora == > > > * Better compatibility with existing debugging and tracing tools, > > > primarily [https://lldb.llvm.org/ LLDB]. > > > > Thanks for your work on this Ben and Jan, Just as an interested user, use > > of the DWZ format significantly limits Swift development on Fedora, as it > > is impossible to debug with LLDB when using system libraries. Currently you can use my off-trunk patchset build: dnf copr enable jankratochvil/lldb;dnf install lldb-experimental;lldb-experimental > But that's fixable since there's a patchset to make LLDB understand > dwz, which was not submitted upstream for unstated reasons. The reasons are stated in other mails, re-stating here: * the support of DWZ is complicated for effective DWARF consumers like LLDB * the same DWZ size reduction can be achieved just by removing dead DIEs and -fdebug-types-section skeletons - not needing any DWZ nor DWZ support in consumers at all * the LLDB DWZ support is now scatterd across the LLDB DWARF codebase for every DIE type so it will require continuous maintenance during LLDB development from RH; Google+Apple will probably never use DWZ themselves. * the LLDB DWZ support is currently implemented in LLDB DWARF/ but LLDB is going to replace its DWARF code to clang's DWARF code which will then require rewriting the LLDB DWZ code from scratch Jan _______________________________________________ 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
