On Thu, Sep 24, 2020 at 12:00 PM Ben Cotton <bcotton@xxxxxxxxxx> wrote: > > https://fedoraproject.org/wiki/Changes/DebugInfoStandardization > > == Summary == > Fedora 18 implemented [[Features/DwarfCompressor]]. As the format did > not get widespread and the tool is not much maintained it became > burden to make existing debugging tools compatible with Fedora debug > info. > > == Owner == > * Name: [[User:jankratochvil| Jan Kratochvil ]] > * Email: jan.kratochvil@xxxxxxxxxx > > > == Detailed Description == > > Debug info files *.debug contained in *-debuginfo.rpm are very big in > general (x86_64 Fedora 32 distribution has debug/ directory of 82GB > while all its other files are only 75GB). There exist several methods > how to make the *-debuginfo.rpms at least a bit smaller. Fedora 18 > started using DWZ tool (from [[Features/DwarfCompressor]]) while > [https://gcc.gnu.org/pipermail/gcc-patches/2008-August/246281.html > Google implemented] the same goal in a different way called > -fdebug-types-section. > > Almost nobody uses existing Fedora DWZ (only Fedora/CentOS/RHEL and > SuSE OSes) and so its support is missing in tools like > [https://lldb.llvm.org/ LLDB], > [[llvm-dwarfdumphttps://llvm.org/docs/CommandGuide/llvm-dwarfdump.html|llvm-dwarfdump]] > or binutils readelf. -fdebug-types-section is used internally by > Google (produced by clang). Debian does not store any debug info > archives. Ubuntu uses neither -fdebug-types-section nor DWZ. > This is not true. Debian started producing -dbgsym packages and putting them in a separate repository years ago: https://wiki.debian.org/AutomaticDebugPackages dwz is used by virtually all RPM based distributions now, including OpenMandriva (a clang-based distro). I know this because I implemented it. :) I do not know whether Debian has started using dwz by default because I haven't dug into how the -dbgsym package generation works in detail. -- 真実はいつも一つ！/ Always, there's only one truth! _______________________________________________ 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
