From patchwork Tue Jul 22 12:50:40 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ross Burton X-Patchwork-Id: 67264 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8C68FC83F1A for ; Tue, 22 Jul 2025 12:50:53 +0000 (UTC) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mx.groups.io with SMTP id smtpd.web10.11747.1753188644196073598 for ; Tue, 22 Jul 2025 05:50:44 -0700 Authentication-Results: mx.groups.io; dkim=none (message not signed); spf=pass (domain: arm.com, ip: 217.140.110.172, mailfrom: ross.burton@arm.com) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 200F3152B; Tue, 22 Jul 2025 05:50:38 -0700 (PDT) Received: from cesw-amp-gbt-1s-m12830-04.lab.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 38BE03F59E; Tue, 22 Jul 2025 05:50:43 -0700 (PDT) From: Ross Burton To: openembedded-core@lists.openembedded.org Cc: raj.khem@gmail.com Subject: [PATCH 1/2] clang: split lld into a separate lld recipe Date: Tue, 22 Jul 2025 13:50:40 +0100 Message-ID: <20250722125041.3301907-1-ross.burton@arm.com> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Tue, 22 Jul 2025 12:50:53 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/220741 The lld linker is a standalone project under the LLVM umbrella that just depends on libLLVM and nothing else, such as clang. To reduce the build time of clang if lld is not being used, split it out into a separate recipe. Signed-off-by: Ross Burton --- meta/conf/distro/include/maintainers.inc | 1 + meta/recipes-devtools/clang/clang_git.bb | 8 +++----- meta/recipes-devtools/clang/lld_git.bb | 20 ++++++++++++++++++++ 3 files changed, 24 insertions(+), 5 deletions(-) create mode 100644 meta/recipes-devtools/clang/lld_git.bb diff --git a/meta/conf/distro/include/maintainers.inc b/meta/conf/distro/include/maintainers.inc index 927aac16d6d..5260bde36bc 100644 --- a/meta/conf/distro/include/maintainers.inc +++ b/meta/conf/distro/include/maintainers.inc @@ -480,6 +480,7 @@ RECIPE_MAINTAINER:pn-linux-yocto = "Bruce Ashfield " RECIPE_MAINTAINER:pn-linux-yocto-dev = "Bruce Ashfield " RECIPE_MAINTAINER:pn-linux-yocto-rt = "Bruce Ashfield " RECIPE_MAINTAINER:pn-linux-yocto-tiny = "Bruce Ashfield " +RECIPE_MAINTAINER:pn-lld = "Khem Raj " RECIPE_MAINTAINER:pn-lldb = "Khem Raj " RECIPE_MAINTAINER:pn-llvm-project-source-20.1.8 = "Khem Raj " RECIPE_MAINTAINER:pn-llvm-tblgen-native = "Khem Raj " diff --git a/meta/recipes-devtools/clang/clang_git.bb b/meta/recipes-devtools/clang/clang_git.bb index 830c0282cd6..60eb256e1ad 100644 --- a/meta/recipes-devtools/clang/clang_git.bb +++ b/meta/recipes-devtools/clang/clang_git.bb @@ -83,7 +83,7 @@ PACKAGECONFIG[eh] = "-DLLVM_ENABLE_EH=ON,-DLLVM_ENABLE_EH=OFF,," PACKAGECONFIG[libcplusplus] = "-DCLANG_DEFAULT_CXX_STDLIB=libc++,," PACKAGECONFIG[libedit] = "-DLLVM_ENABLE_LIBEDIT=ON,-DLLVM_ENABLE_LIBEDIT=OFF,libedit libedit-native" PACKAGECONFIG[libomp] = "-DCLANG_DEFAULT_OPENMP_RUNTIME=libomp,," -PACKAGECONFIG[lld] = "-DCLANG_DEFAULT_LINKER=lld,," +PACKAGECONFIG[lld] = "-DCLANG_DEFAULT_LINKER=lld,,,lld" PACKAGECONFIG[lto] = "-DLLVM_ENABLE_LTO=Full -DLLVM_BINUTILS_INCDIR=${STAGING_INCDIR},,binutils," PACKAGECONFIG[pfm] = "-DLLVM_ENABLE_LIBPFM=ON,-DLLVM_ENABLE_LIBPFM=OFF,libpfm," PACKAGECONFIG[rtti] = "-DLLVM_ENABLE_RTTI=ON,-DLLVM_ENABLE_RTTI=OFF,," @@ -133,7 +133,7 @@ HF[vardepvalue] = "${HF}" # Ensure that LLVM_PROJECTS does not contain compiler runtime components e.g. libcxx etc # they are enabled via LLVM_ENABLE_RUNTIMES -LLVM_PROJECTS ?= "clang;clang-tools-extra;lld" +LLVM_PROJECTS ?= "clang;clang-tools-extra" # linux hosts (.so) on Windows .pyd SOLIBSDEV:mingw32 = ".pyd" @@ -419,10 +419,8 @@ clang_sysroot_preprocess() { install -d ${SYSROOT_DESTDIR}${bindir_crossscripts}/ install -m 0755 ${S}/llvm/tools/llvm-config/llvm-config ${SYSROOT_DESTDIR}${bindir_crossscripts}/ ln -sf llvm-config ${SYSROOT_DESTDIR}${bindir_crossscripts}/llvm-config${PV} - # LLDTargets.cmake references the lld executable(!) that some modules/plugins link to - install -d ${SYSROOT_DESTDIR}${bindir} - binaries="lld diagtool clang-${MAJOR_VER} clang-format clang-offload-packager + binaries="diagtool clang-${MAJOR_VER} clang-format clang-offload-packager clang-offload-bundler clang-scan-deps clang-repl clang-refactor clang-check clang-extdef-mapping clang-apply-replacements clang-reorder-fields clang-tidy clang-change-namespace clang-doc clang-include-fixer diff --git a/meta/recipes-devtools/clang/lld_git.bb b/meta/recipes-devtools/clang/lld_git.bb new file mode 100644 index 00000000000..6c8ba03c052 --- /dev/null +++ b/meta/recipes-devtools/clang/lld_git.bb @@ -0,0 +1,20 @@ +SUMMARY = "LLD - the LLVM Linker" +DESCRIPTION = "LLD is a linker from the LLVM project that is a drop-in replacement for system linkers and runs much faster than them." +HOMEPAGE = "https://lld.llvm.org" +SECTION = "devel" + +require common-clang.inc +require common-source.inc + +LIC_FILES_CHKSUM = "file://lld/LICENSE.TXT;md5=ae7dc7c027b1fa89b5b013d391d3ee2b" + +inherit cmake pkgconfig + +DEPENDS = "llvm-tblgen-native llvm" + +OECMAKE_SOURCEPATH = "${S}/lld" + +EXTRA_OECMAKE = "-DLLVM_INCLUDE_TESTS=OFF \ + -DLLVM_TABLEGEN_EXE=${STAGING_BINDIR_NATIVE}/llvm-tblgen" + +BBCLASSEXTEND = "native nativesdk"