Re: git: 8d5a11cd0137 - main - src.conf: Add WITH_LLVM_LINK_STATIC_LIBRARIES build knob
Date: Tue, 23 Dec 2025 21:08:31 UTC
On 23 Dec 2025, at 22:04, Dimitry Andric <dim@FreeBSD.org> wrote: > > The branch main has been updated by dim: > > URL: https://cgit.FreeBSD.org/src/commit/?id=8d5a11cd0137d3ad70f6b06e063ea91a776d510a > > commit 8d5a11cd0137d3ad70f6b06e063ea91a776d510a > Author: Dimitry Andric <dim@FreeBSD.org> > AuthorDate: 2025-06-18 10:06:25 +0000 > Commit: Dimitry Andric <dim@FreeBSD.org> > CommitDate: 2025-12-23 21:01:40 +0000 > > src.conf: Add WITH_LLVM_LINK_STATIC_LIBRARIES build knob > > In commit 2e47f35be5dc libllvm, libclang and liblldb were converted into > private shared libraries. This allowed clang, lld, lldb, and other llvm > tools to be linked against these shared libraries, which makes them > smaller and avoids duplication. > > However, this also comes at the cost of some performance, since the > dynamic libraries are quite large, and contain lots of long symbols > (mangled C++ identifiers). > > Add a WITH_LLVM_LINK_STATIC_LIBRARIES build knob that can be used to go > back to the previous behavior: libllvm, libclang and liblldb are built > as internal static libraries, i.e. only available during buildworld, and > fully linked into the various executables such as clang, lld, etc. > > PR: 287447 > Reviewed by: emaste > MFC after: 1 week > Differential Revision: https://reviews.freebsd.org/D50956 NOTE: toggling this option requires a full clean build, at least until https://reviews.freebsd.org/D52011 lands. -Dimitry