diff mbox series

[5/6] llvm: add recipe for just the LLVM libraries

Message ID 20250912143038.3345369-5-ross.burton@arm.com
State New
Headers show
Series [1/6] clang: improve opt-viewer PACKAGECONFIG | expand

Commit Message

Ross Burton Sept. 12, 2025, 2:30 p.m. UTC
Whilst it's convenient to build all of the LLVM project in one big
recipe, that's not ideal when we may just need LLVM on target and not
the rest.

Bring back a LLVM recipe that can be used by both clang (shortly) and
Rust (in the future)

Signed-off-by: Ross Burton <ross.burton@arm.com>
---
 meta/conf/distro/include/maintainers.inc |   1 +
 meta/recipes-devtools/clang/llvm_git.bb  | 128 +++++++++++++++++++++++
 2 files changed, 129 insertions(+)
 create mode 100644 meta/recipes-devtools/clang/llvm_git.bb
diff mbox series

Patch

diff --git a/meta/conf/distro/include/maintainers.inc b/meta/conf/distro/include/maintainers.inc
index 6cfa76e2a3d..9c1d38c7350 100644
--- a/meta/conf/distro/include/maintainers.inc
+++ b/meta/conf/distro/include/maintainers.inc
@@ -483,6 +483,7 @@  RECIPE_MAINTAINER:pn-lld = "Khem Raj <raj.khem@gmail.com>"
 RECIPE_MAINTAINER:pn-lldb = "Khem Raj <raj.khem@gmail.com>"
 RECIPE_MAINTAINER:pn-llvm-project-source-21.1.0 = "Khem Raj <raj.khem@gmail.com>"
 RECIPE_MAINTAINER:pn-llvm-tblgen-native = "Khem Raj <raj.khem@gmail.com>"
+RECIPE_MAINTAINER:pn-llvm = "Khem Raj <raj.khem@gmail.com>"
 RECIPE_MAINTAINER:pn-logrotate = "Yi Zhao <yi.zhao@windriver.com>"
 RECIPE_MAINTAINER:pn-log4cplus = "Unassigned <unassigned@yoctoproject.org>"
 RECIPE_MAINTAINER:pn-lrzsz = "Anuj Mittal <anuj.mittal@intel.com>"
diff --git a/meta/recipes-devtools/clang/llvm_git.bb b/meta/recipes-devtools/clang/llvm_git.bb
new file mode 100644
index 00000000000..dabdad5095e
--- /dev/null
+++ b/meta/recipes-devtools/clang/llvm_git.bb
@@ -0,0 +1,128 @@ 
+# Copyright (C) 2017 Khem Raj <raj.khem@gmail.com>
+# Released under the MIT license (see COPYING.MIT for the terms)
+
+SUMMARY = "The LLVM Compiler Infrastructure"
+HOMEPAGE = "http://llvm.org"
+LICENSE = "Apache-2.0-with-LLVM-exception"
+SECTION = "devel"
+
+require common-clang.inc
+require common-source.inc
+
+LIC_FILES_CHKSUM = "file://LICENSE.TXT;md5=8a15a0759ef07f2682d2ba4b893c9afe"
+
+DEPENDS = "llvm-tblgen-native libffi libxml2 zlib zstd"
+
+inherit cmake pkgconfig lib_package
+
+OECMAKE_SOURCEPATH = "${S}/llvm"
+
+# By default we build all the supported CPU architectures, and the GPU targets
+# if the opengl or vulkan DISTRO_FEATURES are enabled.
+#
+# For target builds we default to building that specific architecture, BPF, and the GPU targets if required.
+#
+# The available target list can be seen in the source code
+# in the LLVM_ALL_TARGETS assignment:
+# https://github.com/llvm/llvm-project/blob/main/llvm/CMakeLists.txt
+LLVM_TARGETS_GPU ?= "${@bb.utils.contains_any('DISTRO_FEATURES', 'opengl vulkan', 'AMDGPU;NVPTX;SPIRV', '', d)}"
+LLVM_TARGETS_TO_BUILD ?= "AArch64;ARM;BPF;Mips;PowerPC;RISCV;X86;LoongArch;${LLVM_TARGETS_GPU}"
+LLVM_TARGETS_TO_BUILD:class-target ?= "${@get_clang_host_arch(bb, d)};BPF;${LLVM_TARGETS_GPU}"
+
+LLVM_EXPERIMENTAL_TARGETS_TO_BUILD ?= ""
+
+HF = ""
+HF:class-target = "${@ bb.utils.contains('TUNE_CCARGS_MFLOAT', 'hard', 'hf', '', d)}"
+HF[vardepvalue] = "${HF}"
+
+EXTRA_OECMAKE += "-DCMAKE_BUILD_TYPE=Release \
+                  -DLLVM_ENABLE_ASSERTIONS=OFF \
+                  -DLLVM_ENABLE_EXPENSIVE_CHECKS=OFF \
+                  -DLLVM_ENABLE_PIC=ON \
+                  -DLLVM_ENABLE_BINDINGS=OFF \
+                  -DLLVM_ENABLE_FFI=ON \
+                  -DLLVM_ENABLE_RTTI=ON \
+                  -DLLVM_TARGETS_TO_BUILD='${LLVM_TARGETS_TO_BUILD}' \
+                  -DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD='${LLVM_EXPERIMENTAL_TARGETS_TO_BUILD}' \
+                  -DLLVM_LIBDIR_SUFFIX=${LLVM_LIBDIR_SUFFIX} \
+                  -DLLVM_VERSION_SUFFIX='${VER_SUFFIX}' \
+                  -DLLVM_TEMPORARILY_ALLOW_OLD_TOOLCHAIN=ON \
+                  -DLLVM_INCLUDE_TESTS=OFF \
+                  -DLLVM_INCLUDE_EXAMPLES=OFF \
+                  -DLLVM_TOOL_OBJ2YAML_BUILD=OFF \
+                  -DLLVM_TOOL_YAML2OBJ_BUILD=OFF \
+                  -DLLVM_TABLEGEN=${STAGING_BINDIR_NATIVE}/llvm-tblgen \
+                 "
+
+EXTRA_OECMAKE:append:class-target = "\
+                  -DLLVM_DEFAULT_TARGET_TRIPLE=${TARGET_SYS}${HF} \
+                  -DLLVM_TARGET_ARCH=${HOST_ARCH} \
+                  -DLLVM_HOST_TRIPLE=${TARGET_SYS}${HF} \
+                  -DLLVM_CONFIG_PATH=${STAGING_BINDIR_NATIVE}/llvm-config \
+                  -DLLVM_NATIVE_TOOL_DIR=${STAGING_BINDIR_NATIVE} \
+                 "
+
+EXTRA_OECMAKE:append:class-nativesdk = "\
+                  -DLLVM_HOST_TRIPLE=${SDK_SYS} \
+                  -DLLVM_CONFIG_PATH=${STAGING_BINDIR_NATIVE}/llvm-config \
+                  -DLLVM_NATIVE_TOOL_DIR=${STAGING_BINDIR_NATIVE} \
+                 "
+
+PACKAGECONFIG ??= "eh rtti shared-libs ${@bb.utils.filter('DISTRO_FEATURES', 'lto thin-lto', d)}"
+PACKAGECONFIG:remove:class-native = "lto thin-lto"
+
+PACKAGECONFIG[eh] = "-DLLVM_ENABLE_EH=ON,-DLLVM_ENABLE_EH=OFF"
+PACKAGECONFIG[exegesis] = "-DLLVM_TOOL_LLVM_EXEGESIS_BUILD=ON,-DLLVM_TOOL_LLVM_EXEGESIS_BUILD=OFF"
+PACKAGECONFIG[libedit] = "-DLLVM_ENABLE_LIBEDIT=ON,-DLLVM_ENABLE_LIBEDIT=OFF,libedit"
+PACKAGECONFIG[rtti] = "-DLLVM_ENABLE_RTTI=ON,-DLLVM_ENABLE_RTTI=OFF"
+PACKAGECONFIG[shared-libs] = "-DLLVM_BUILD_LLVM_DYLIB=ON -DLLVM_LINK_LLVM_DYLIB=ON,-DLLVM_BUILD_LLVM_DYLIB=OFF -DLLVM_LINK_LLVM_DYLIB=OFF"
+PACKAGECONFIG[split-dwarf] = "-DLLVM_USE_SPLIT_DWARF=ON,-DLLVM_USE_SPLIT_DWARF=OFF"
+PACKAGECONFIG[opt-viewer] = "-DLLVM_TOOL_OPT_VIEWER_BUILD=ON,-DLLVM_TOOL_OPT_VIEWER_BUILD=OFF, \
+                             python3-pyyaml-native python3-pygments-native python3-pyyaml python3-pygments, \
+                             python3-pyyaml python3-pygments,"
+PACKAGECONFIG[lto] = "-DLLVM_ENABLE_LTO=Full -DLLVM_BINUTILS_INCDIR=${STAGING_INCDIR},,binutils,"
+PACKAGECONFIG[thin-lto] = "-DLLVM_ENABLE_LTO=Thin -DLLVM_BINUTILS_INCDIR=${STAGING_INCDIR},,binutils,"
+
+reproducible_build_variables() {
+    sed -i -e "s,${DEBUG_PREFIX_MAP},,g" \
+        -e "s,--sysroot=${RECIPE_SYSROOT},,g" \
+        -e "s,${STAGING_DIR_HOST},,g" \
+        -e "s,${S}/llvm,,g"  \
+        -e "s,${B},,g" \
+        ${B}/tools/llvm-config/BuildVariables.inc
+}
+
+do_configure:append:class-target() {
+    reproducible_build_variables
+}
+do_configure:append:class-nativesdk() {
+    reproducible_build_variables
+}
+
+do_install:append() {
+    # llvm hardcodes lib as install path, this corrects it to actual libdir.
+    # https://github.com/llvm/llvm-project/issues/152193
+    if [ -d ${D}/${prefix}/lib -a ! -d ${D}/${libdir} ]; then
+        mv ${D}/${prefix}/lib ${D}/${libdir}
+    fi
+
+    # Reproducibility fixes
+    sed -i -e 's,${WORKDIR},,g' ${D}/${libdir}/cmake/llvm/LLVMConfig.cmake
+}
+
+do_install:append:class-native() {
+    # These are provided by llvm-tblgen-native
+    rm ${D}${bindir}/*-tblgen
+}
+
+SYSROOT_PREPROCESS_FUNCS:append:class-target = " llvm_sysroot_preprocess"
+SYSROOT_PREPROCESS_FUNCS:append:class-nativesdk = " llvm_sysroot_preprocess"
+
+llvm_sysroot_preprocess() {
+        install -d ${SYSROOT_DESTDIR}${bindir_crossscripts}/
+        install -m 0755 ${S}/llvm/tools/llvm-config/llvm-config ${SYSROOT_DESTDIR}${bindir_crossscripts}/
+}
+
+FILES:${PN}-dev += "${libdir}/llvm-config"
+
+BBCLASSEXTEND = "native nativesdk"