From nobody Fri Jan 2 20:51:46 2026 X-Original-To: dev-commits-src-all@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4djbTb04Q8z6MFFZ for ; Fri, 02 Jan 2026 20:51:47 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R13" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4djbTZ64Bvz3phN for ; Fri, 02 Jan 2026 20:51:46 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1767387106; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=L0//RNn1W8+H3Qu/ZLLEWSPMYNWrY9JGQGqRKji28vQ=; b=Eee/Jf8uJXfNR5Phgmj83xWPla5eA6gzk8UKHyCaWIPORmUK+tCQiQkJGZekHZr13DMATg CxWTBtXXm1rceGbfgFQse1dddDlJRU0wFUxM7TpGU3cvnP1r3KA6fkkDo40flJO0G45lpQ RNOU8FrzRCM0p82qnPqKCOjQs0zCMOQ4uwN7zPxAigPf/CuaudGmGMJnNMFzDxRIJ3Jkk9 tQiri6so0odQBxBXA77RisFU61MC4fRINZrIXBMU8SrJeqwZGdDwKgA2xZWoV1BlzzcaI2 NzkK5X+7iFIM/RXnJ+2k4yJ59fySYmyvsQ4b1cobMgqwyvlxso3xVK+avs+Rwg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1767387106; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=L0//RNn1W8+H3Qu/ZLLEWSPMYNWrY9JGQGqRKji28vQ=; b=FjES22VQzbY0GzhmWjMuU94LDnkuQXaGEA+m7ZXvWvhgvOdU3qIJUD0zChomzH8oz+Xf2k AGVoymuwqiwBUTNeC9iMXu7buhnV4PBXm0wAH76G5SJNg3sX0WK/P6mgix5hvXlDrpqP9+ QjSEzlrro924pskBYCBatV0ma0JzrWMQ/1NyVja8ZFakPcEKUP6hAidSncv+MEnrsag90U DxN1Vj0hyvcQOY1w2CKo+wsOoxpPVstGO+e9zPoX/bHcqV1xY177b/wsuQ3l7ho5xH6bi4 XwM7hZp6UPgJmA4x4+WVWsTxlVDwRWF8yZaXmMJlSPZM8yJwewoc7wofkvUHsg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1767387106; a=rsa-sha256; cv=none; b=VIq9W5LEyFI6r3Z74ITIP26GshTn9N2CN5+vEk860i9yHRyUwFcfLjlKwCFlBBwmDhf5b9 yb7xcBk48TwQGlpiCl3Lh54hOIXlPv83sABxE6PcclAZHh7OynlvX/uc1o3KJaXgfN9ecf Gkdi3fXvM4ZPGb9EHvUXV/iJ001/ug8RycLI8G4b44aoHc6taVVAqnVw3q/BgfRqtBru+b vf97yveEAvuQY3MRPQojM15G7ohADMhxmnk/nGfK3xodRcEc0NB91+BE3gjvtVc+224mhL WpCZAXXTZihh4F0rds9Btkiwka1rdOgoEIfjiZKpmHDFv47FU1TgjRuOWSgqAA== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4djbTZ5WrGzZqV for ; Fri, 02 Jan 2026 20:51:46 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id a94f by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Fri, 02 Jan 2026 20:51:46 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Dimitry Andric Subject: git: ded12d66a3eb - stable/15 - src.conf: Add WITH_LLVM_LINK_STATIC_LIBRARIES build knob List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: dim X-Git-Repository: src X-Git-Refname: refs/heads/stable/15 X-Git-Reftype: branch X-Git-Commit: ded12d66a3ebdac657c24746f9b13d5d332f3cbd Auto-Submitted: auto-generated Date: Fri, 02 Jan 2026 20:51:46 +0000 Message-Id: <69582fe2.a94f.17da59ca@gitrepo.freebsd.org> The branch stable/15 has been updated by dim: URL: https://cgit.FreeBSD.org/src/commit/?id=ded12d66a3ebdac657c24746f9b13d5d332f3cbd commit ded12d66a3ebdac657c24746f9b13d5d332f3cbd Author: Dimitry Andric AuthorDate: 2025-06-18 10:06:25 +0000 Commit: Dimitry Andric CommitDate: 2026-01-02 20:40:18 +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 (cherry picked from commit 8d5a11cd0137d3ad70f6b06e063ea91a776d510a) --- lib/clang/libclang/Makefile | 8 ++++---- lib/clang/liblldb/Makefile | 13 ++++++++++++- lib/clang/libllvm/Makefile | 9 ++++----- share/man/man5/src.conf.5 | 9 ++++++++- share/mk/src.opts.mk | 1 + tools/build/mk/OptionalObsoleteFiles.inc | 11 ++++++++--- tools/build/options/WITH_LLVM_LINK_STATIC_LIBRARIES | 6 ++++++ usr.bin/clang/Makefile.inc | 2 +- usr.bin/clang/clang.prog.mk | 2 +- usr.bin/clang/lld/Makefile | 2 +- usr.bin/clang/lldb-server/Makefile | 5 +++++ usr.bin/clang/lldb/Makefile | 5 +++++ usr.bin/clang/llvm.prog.mk | 5 +++++ 13 files changed, 61 insertions(+), 17 deletions(-) diff --git a/lib/clang/libclang/Makefile b/lib/clang/libclang/Makefile index 7eb2c99b25c8..56f6fd374fe5 100644 --- a/lib/clang/libclang/Makefile +++ b/lib/clang/libclang/Makefile @@ -1,8 +1,8 @@ -.include +.include .include "../clang.pre.mk" -.if defined(TOOLS_PREFIX) -# Build static library during cross-tools stage +.if defined(TOOLS_PREFIX) || ${MK_LLVM_LINK_STATIC_LIBRARIES} == "yes" +# Build static library during cross-tools stage, or when explicitly requested. LIB= clang INTERNALLIB= .else @@ -872,7 +872,7 @@ SRCS+= ${SRCS_ALL:O} LIBDEPS+= llvm -.if defined(TOOLS_PREFIX) +.if defined(TOOLS_PREFIX) || ${MK_LLVM_LINK_STATIC_LIBRARIES} == "yes" LIBPRIV= LIBEXT= a .else diff --git a/lib/clang/liblldb/Makefile b/lib/clang/liblldb/Makefile index a3ff8e367864..aa9e90b2f6f2 100644 --- a/lib/clang/liblldb/Makefile +++ b/lib/clang/liblldb/Makefile @@ -1,10 +1,16 @@ -.include +.include .include "../lldb.pre.mk" +.if ${MK_LLVM_LINK_STATIC_LIBRARIES} == "yes" +# Build static library when explicitly requested. +LIB= lldb +INTERNALLIB= +.else PACKAGE= lldb SHLIB_CXX= lldb SHLIB_MAJOR= 19 PRIVATELIB= +.endif SHARED_CXXFLAGS+= -UPIC # To avoid compile errors @@ -753,8 +759,13 @@ SRCS+= Version/Version.cpp LIBDEPS+= clang LIBDEPS+= llvm +.if defined(TOOLS_PREFIX) || ${MK_LLVM_LINK_STATIC_LIBRARIES} == "yes" +LIBPRIV= +LIBEXT= a +.else LIBPRIV= private LIBEXT= so +.endif .for lib in ${LIBDEPS} DPADD+= ${OBJTOP}/lib/clang/lib${lib}/lib${LIBPRIV}${lib}.${LIBEXT} diff --git a/lib/clang/libllvm/Makefile b/lib/clang/libllvm/Makefile index a4e9c628d99e..05128550827a 100644 --- a/lib/clang/libllvm/Makefile +++ b/lib/clang/libllvm/Makefile @@ -1,8 +1,8 @@ -.include +.include .include "../llvm.pre.mk" -.if defined(TOOLS_PREFIX) -# Build static library during cross-tools stage +.if defined(TOOLS_PREFIX) || ${MK_LLVM_LINK_STATIC_LIBRARIES} == "yes" +# Build static library during cross-tools stage, or when explicitly requested. LIB= llvm INTERNALLIB= .else @@ -14,6 +14,7 @@ PRIVATELIB= # Work around "relocation R_PPC_GOT16 out of range" errors PICFLAG= -fPIC .endif +CFLAGS+= -DLLVM_BUILD_LLVM_DYLIB .endif SHARED_CXXFLAGS+= -UPIC # To avoid compile errors @@ -48,8 +49,6 @@ CFLAGS+= -DBLAKE3_NO_AVX512 -DBLAKE3_NO_AVX2 -DBLAKE3_NO_SSE41 \ CFLAGS+= -DBLAKE3_USE_NEON=0 .endif -CFLAGS+= -DLLVM_BUILD_LLVM_DYLIB - SRCDIR= llvm/lib # Explanation of different SRCS variants below: diff --git a/share/man/man5/src.conf.5 b/share/man/man5/src.conf.5 index ba8b79b7c5bd..724f664e2a11 100644 --- a/share/man/man5/src.conf.5 +++ b/share/man/man5/src.conf.5 @@ -1,5 +1,5 @@ .\" DO NOT EDIT-- this file is @generated by tools/build/options/makeman. -.Dd October 22, 2025 +.Dd December 21, 2025 .Dt SRC.CONF 5 .Os .Sh NAME @@ -995,6 +995,13 @@ Install ELF Tool Chain's cxxfilt as c++filt, instead of LLVM's llvm-cxxfilt. .It Va WITH_LLVM_FULL_DEBUGINFO Generate full debug information for LLVM libraries and tools, which uses more disk space and build resources, but allows for easier debugging. +.It Va WITH_LLVM_LINK_STATIC_LIBRARIES +Link LLVM libraries (libllvm, libclang, liblldb) statically into each of +the binaries that use them. + +This means that binaries linked against these libraries, such as clang, +ld.lld and lldb will be much larger and position dependent, but will +start more quickly. .It Va WITHOUT_LLVM_TARGET_AARCH64 Do not build LLVM target support for AArch64. The diff --git a/share/mk/src.opts.mk b/share/mk/src.opts.mk index 91ea9534fcd6..1167d7f7b812 100644 --- a/share/mk/src.opts.mk +++ b/share/mk/src.opts.mk @@ -212,6 +212,7 @@ __DEFAULT_NO_OPTIONS = \ LOADER_VERIEXEC_PASS_MANIFEST \ LLVM_ASSERTIONS \ LLVM_FULL_DEBUGINFO \ + LLVM_LINK_STATIC_LIBRARIES \ OFED_EXTRA \ OPENLDAP \ PTHREADS_ASSERTIONS \ diff --git a/tools/build/mk/OptionalObsoleteFiles.inc b/tools/build/mk/OptionalObsoleteFiles.inc index df51f6955d2d..f91651fd235b 100644 --- a/tools/build/mk/OptionalObsoleteFiles.inc +++ b/tools/build/mk/OptionalObsoleteFiles.inc @@ -892,12 +892,14 @@ OLD_FILES+=usr/share/man/man4/ccd.4.gz OLD_FILES+=usr/share/man/man8/ccdconfig.8.gz .endif -.if ${MK_CLANG} == no && ${MK_CLANG_FORMAT} == no && ${MK_LLDB} == no +.if ${MK_CLANG} == no && ${MK_CLANG_FORMAT} == no && ${MK_LLDB} == no && \ + ${MK_LLVM_LINK_STATIC_LIBRARIES} == no OLD_LIBS+=usr/lib/libprivateclang.so.19 .endif .if ${MK_CLANG_EXTRAS} == no && ${MK_CLANG} == no && ${MK_LLDB} == no && \ - ${MK_LLD} == no && ${MK_LLVM_BINUTILS} == no && ${MK_LLVM_COV} == no + ${MK_LLD} == no && ${MK_LLVM_BINUTILS} == no && ${MK_LLVM_COV} == no && \ + ${MK_LLVM_LINK_STATIC_LIBRARIES} == no OLD_LIBS+=usr/lib/libprivatellvm.so.19 .endif @@ -3864,10 +3866,13 @@ OLD_LIBS+=${DEBUG_LIB${LIBCOMPAT}_LIBS} OLD_FILES+=usr/bin/ld.lld .endif +.if ${MK_LLDB} == no && ${MK_LLVM_LINK_STATIC_LIBRARIES} == no +OLD_LIBS+=usr/lib/libprivatelldb.so.19 +.endif + .if ${MK_LLDB} == no OLD_FILES+=usr/bin/lldb OLD_FILES+=usr/bin/lldb-server -OLD_LIBS+=usr/lib/libprivatelldb.so.19 OLD_FILES+=usr/share/man/man1/lldb-server.1.gz OLD_FILES+=usr/share/man/man1/lldb.1.gz .endif diff --git a/tools/build/options/WITH_LLVM_LINK_STATIC_LIBRARIES b/tools/build/options/WITH_LLVM_LINK_STATIC_LIBRARIES new file mode 100644 index 000000000000..7860ee862b1d --- /dev/null +++ b/tools/build/options/WITH_LLVM_LINK_STATIC_LIBRARIES @@ -0,0 +1,6 @@ +Link LLVM libraries (libllvm, libclang, liblldb) statically into each of +the binaries that use them. + +This means that binaries linked against these libraries, such as clang, +ld.lld and lldb will be much larger and position dependent, but will +start more quickly. diff --git a/usr.bin/clang/Makefile.inc b/usr.bin/clang/Makefile.inc index 1e9998061cf6..7ce07e2eac1d 100644 --- a/usr.bin/clang/Makefile.inc +++ b/usr.bin/clang/Makefile.inc @@ -1,6 +1,6 @@ .include -.if defined(TOOLS_PREFIX) +.if defined(TOOLS_PREFIX) || ${MK_LLVM_LINK_STATIC_LIBRARIES} == "yes" MK_PIE:= no # Explicit libXXX.a references .endif diff --git a/usr.bin/clang/clang.prog.mk b/usr.bin/clang/clang.prog.mk index 3baf3d0baf0f..e35425b0d280 100644 --- a/usr.bin/clang/clang.prog.mk +++ b/usr.bin/clang/clang.prog.mk @@ -18,7 +18,7 @@ LIBADD+= z LIBADD+= zstd .endif -.if defined(TOOLS_PREFIX) +.if defined(TOOLS_PREFIX) || ${MK_LLVM_LINK_STATIC_LIBRARIES} == "yes" LIBPRIV= LIBEXT= a .else diff --git a/usr.bin/clang/lld/Makefile b/usr.bin/clang/lld/Makefile index cbad6f2b3fcd..588dc5a198fc 100644 --- a/usr.bin/clang/lld/Makefile +++ b/usr.bin/clang/lld/Makefile @@ -81,7 +81,7 @@ SRCS+= tools/lld/lld.cpp LIBDEPS+= llvm -.if defined(TOOLS_PREFIX) +.if defined(TOOLS_PREFIX) || ${MK_LLVM_LINK_STATIC_LIBRARIES} == "yes" LIBPRIV= LIBEXT= a .else diff --git a/usr.bin/clang/lldb-server/Makefile b/usr.bin/clang/lldb-server/Makefile index 5042fa1fdf04..da4d83445050 100644 --- a/usr.bin/clang/lldb-server/Makefile +++ b/usr.bin/clang/lldb-server/Makefile @@ -22,8 +22,13 @@ LIBDEPS+= lldb LIBDEPS+= clang LIBDEPS+= llvm +.if defined(TOOLS_PREFIX) || ${MK_LLVM_LINK_STATIC_LIBRARIES} == "yes" +LIBPRIV= +LIBEXT= a +.else LIBPRIV= private LIBEXT= so +.endif .for lib in ${LIBDEPS} DPADD+= ${OBJTOP}/lib/clang/lib${lib}/lib${LIBPRIV}${lib}.${LIBEXT} diff --git a/usr.bin/clang/lldb/Makefile b/usr.bin/clang/lldb/Makefile index 452bfd23bfa2..880d4de1c8fc 100644 --- a/usr.bin/clang/lldb/Makefile +++ b/usr.bin/clang/lldb/Makefile @@ -15,8 +15,13 @@ LIBDEPS+= lldb LIBDEPS+= clang LIBDEPS+= llvm +.if defined(TOOLS_PREFIX) || ${MK_LLVM_LINK_STATIC_LIBRARIES} == "yes" +LIBPRIV= +LIBEXT= a +.else LIBPRIV= private LIBEXT= so +.endif .for lib in ${LIBDEPS} DPADD+= ${OBJTOP}/lib/clang/lib${lib}/lib${LIBPRIV}${lib}.${LIBEXT} diff --git a/usr.bin/clang/llvm.prog.mk b/usr.bin/clang/llvm.prog.mk index c369fe8d5944..00f319a246fb 100644 --- a/usr.bin/clang/llvm.prog.mk +++ b/usr.bin/clang/llvm.prog.mk @@ -14,8 +14,13 @@ LIBPRIV= LIBEXT= a .else LIBDEPS+= llvm +.if ${MK_LLVM_LINK_STATIC_LIBRARIES} == "yes" +LIBPRIV= +LIBEXT= a +.else LIBPRIV= private LIBEXT= so +.endif LIBADD+= z LIBADD+= zstd .endif