Thank you David for this awesome work...
8:26.77 Your build was successful! on windows !! Who would have known we would ever get there... (I had to uninstall my local install of LLVM nightly, run ./mach bootstrap again.. The wiki should be amended with this, it gives confusing results otherwie) On Tue, Mar 13, 2018 at 3:31 PM, David Major <dma...@mozilla.com> wrote: > Link xul.dll in 20 seconds with this one weird trick! > > > Hi everyone, > > clang-cl builds of Firefox have come a long way, from being a hobby > project of a few developers to running static analysis in CI for more than > a year now. The tools are in really good shape and should be ready for > broader use within Mozilla at this point. > > Bug 1443590 is looking into what it would take to ship official builds > with clang-cl and lld-link, but in the meantime it's possible to do local > builds already. I'd like to invite people who develop on Windows to give it > a try. > > *** Reasons to use clang-cl and lld-link locally *** > > - Speed! lld is known for being very fast. I'm serious about 20-second > libxuls. That's a non-incremental link, with identical code folding > enabled. For comparison, MSVC takes me over two minutes. > > - Speed again! clang-cl will integrate with upcoming sccache/icecream work. > > - Much clearer and more actionable error messages than MSVC > > - Make your own ASan and static analysis builds (the latter need an LLVM > before r318304, see bug 1427808) > > - Help ship Firefox with clang-cl by getting more eyes and machines on > these tools > > *** Reasons not to use clang-cl and lld-link locally (yet) *** > > - You are testing codegen-level fixes or optimizations and need to see the > exact bits that will be going out to users > > - lld-link currently doesn’t support incremental linking -- but with full > linking being so fast, this might not matter > > - You do artifact builds that don't use a local compiler > > *** How do I get started? *** > > https://developer.mozilla.org/en-US/docs/Mozilla/Developer_ > guide/Build_Instructions/Building_Firefox_on_Windows_with_clang-cl > > A number of build system changes have landed that make these builds much > easier than before. For example you no longer need to use old versions of > MozillaBuild. > > Note that clang-cl builds still depend on an MSVC installation for > headers, libraries, and auxiliary build tools, so don't go uninstalling > your Visual Studio just yet. > > If you run into any problems, please stop by #build or visit the shiny new > Firefox Build System product in Bugzilla (formerly Core :: Build Config). > > Thanks! > > > _______________________________________________ > firefox-dev mailing list > firefox-...@mozilla.org > https://mail.mozilla.org/listinfo/firefox-dev > > _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
