On Fri, Jan 12, 2018 at 04:17:50PM +0100, Dimitry Andric wrote: > On 12 Jan 2018, at 15:38, Shawn Webb <shawn.w...@hardenedbsd.org> wrote: > > > > I know it's early in the game, but I thought I'd report this anyways. > > I have lld as the default linker (MK_LLD_IS_LD=yes). When lld tries to > > link usr.bin/clang/llvm-extract/llvm-extract, lld errors out with some > > unresolved symbols. The log is below. > > > > Has anyone else run into this? > > > > /usr/obj/scratch/hbsd-playground/amd64.amd64/tmp/usr/bin/ld: error: > > undefined symbol: compressBound > >>>> referenced by Compression.cpp:63 > >>>> (/scratch/hbsd-playground/contrib/llvm/lib/Support/Compression.cpp:63) > >>>> Compression.o:(llvm::zlib::compress(llvm::StringRef, > >>>> llvm::SmallVectorImpl<char>&, llvm::zlib::CompressionLevel)) in archive > >>>> /usr/obj/scratch/hbsd-playground/amd64.amd64 > > /lib/clang/libllvm/libllvm.a > > It links fine for me, and I haven't heard any other reports of this, but > can you please try adding a line: > > LIBADD+= z
Can do. I'm also using llvm-ar as the default ar and ranlib, llvm-nm as the default nm, and llvm-objdump as the default objdump. It might be the combination (I kinda suspect llvm-ar) that could be the issue. It's possible there's a regression in llvm-ar. > > to usr.bin/clang/llvm-extract/Makefile locally, and see if that fixes it > for you? I'll give that a shot, but it seems the error is within lld itself. > > At some point I've tried minimizing the number of libraries pulled in, > and on my systems llvm-extract didn't use any of the compression > functions. If you compile it differently, it could end up pulling in > those functions anyway. > > Do you have any non-default settings in make.conf or src.conf? Nope. This is HardenedBSD's source tree, though, so we do have several different WITH_* flags. I'm working on pulling in the retpoline patch into a feature branch in the HardenedBSD Playground repo[1]. > > -Dimitry > > P.S. The clang600-import branch should be mostly ready for general > consumption, except for a number of ports that are still problematic, > see https://bugs.freebsd.org/224669 > Great to hear! [1]: https://github.com/hardenedbsd/hardenedbsd-playground/tree/hardened/current/retpoline Thanks for the help. I'll do more investigating and report back. In the meantime, if you have any further ideas, please let me know. Thanks again, -- Shawn Webb Cofounder and Security Engineer HardenedBSD Tor-ified Signal: +1 443-546-8752 GPG Key ID: 0x6A84658F52456EEE GPG Key Fingerprint: 2ABA B6BD EF6A F486 BE89 3D9E 6A84 658F 5245 6EEE
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