Hello, I've switched my LO debug build to use -gsplit-dwarf and together with using the gold linker this makes the build noticeably smaller and faster to link, for a negligible cost when starting gdb. So at https://gerrit.libreoffice.org/#/c/56416/ and https://gerrit.libreoffice.org/#/c/56417/ there are support for --enable-split-debug and --enable-gold that I intend to push.
However, the actual reason for this mail is that I think that this should be the default for whoever can use it. I've been using it for a while on openSUSE42.3 (a year-old distro) with Clang5 and it seems that everything works just fine (including gdb and valgrind). Gold has been around for a couple of years and so has -gsplit-dwarf, so I'd naively expect that any distro capable of building current LO should have a decent support there as well. Has somebody any problematic experience with either of these? I've been pointed to http://document-foundation-mail-archive.969070.n3.nabble.com/configuring-gold-as-your-linker-td4217690.html by Noel, but the problems mentioned there are old and not very convincing. And note that I'm talking only about developer builds here (i.e. --enable-debug/dbgutil). I expect that distros would have problems with handling split debug info and the performance of gold doesn't really matter for them either. Some numbers: normal | split total debug build size 19120M | 14294M CXXObject dir size 10320M | 8137M libsclo.so size 461669K | 207951K libsclo bfd link time 32.433s | 20.697s libsclo gold link time 10.394s | 6.159s gdb symbols load time 49s | 51s -- Luboš Luňák [email protected] _______________________________________________ LibreOffice mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/libreoffice
