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Thu, 24 Apr 2025 22:43:30 -0700 (PDT) Received: from apollo.localdomain ([2601:646:8201:fd20::ed40]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-73e25aca62csm2363626b3a.167.2025.04.24.22.43.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Apr 2025 22:43:30 -0700 (PDT) From: Khem Raj Date: Thu, 24 Apr 2025 22:43:22 -0700 Subject: [PATCH v2 1/7] cmake.bbclass: Enhance to emit a native toolchain cmake file MIME-Version: 1.0 Message-Id: <20250424-clang-merge-v2-1-0a51d0c1940d@gmail.com> References: <20250424-clang-merge-v2-0-0a51d0c1940d@gmail.com> In-Reply-To: <20250424-clang-merge-v2-0-0a51d0c1940d@gmail.com> To: openembedded-core@lists.openembedded.org Cc: Khem Raj X-Mailer: b4 0.14.2 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 ; Fri, 25 Apr 2025 05:43:36 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/215416 Some components e.g. clang and its runtime needs the native toolchain defines especially when doing nativesdk builds it uses CROSS_TOOLCHAIN_FLAGS_NATIVE to pass native toolchain file, which is then used to build native llvm tools needed during nativesdk builds Moreover this would enable using OE built native toolchain e.g. clang-native to build cmake based packages. e.g. libcxx and other llvm runtime plus it can be used for build native packages which require clang Signed-off-by: Khem Raj --- meta/classes-recipe/cmake.bbclass | 58 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) diff --git a/meta/classes-recipe/cmake.bbclass b/meta/classes-recipe/cmake.bbclass index b342deb67182e29a6b793ccf185c701745b47111..449fe2bb4433ff756d3b4d2357928b853806d58d 100644 --- a/meta/classes-recipe/cmake.bbclass +++ b/meta/classes-recipe/cmake.bbclass @@ -50,11 +50,34 @@ OECMAKE_C_COMPILER_LAUNCHER ?= "${@oecmake_map_compiler('CC', d)[1]}" OECMAKE_CXX_COMPILER ?= "${@oecmake_map_compiler('CXX', d)[0]}" OECMAKE_CXX_COMPILER_LAUNCHER ?= "${@oecmake_map_compiler('CXX', d)[1]}" +# Native C/C++ Compiler (without cpu arch/tune arguments) +OECMAKE_NATIVE_C_COMPILER ?= "${@oecmake_map_compiler('BUILD_CC', d)[0]}" +OECMAKE_NATIVE_C_COMPILER_LAUNCHER ?= "${@oecmake_map_compiler('BUILD_CC', d)[1]}" +OECMAKE_NATIVE_CXX_COMPILER ?= "${@oecmake_map_compiler('BUILD_CXX', d)[0]}" +OECMAKE_NATIVE_CXX_COMPILER_LAUNCHER ?= "${@oecmake_map_compiler('BUILD_CXX', d)[1]}" +OECMAKE_NATIVE_AR ?= "${BUILD_AR}" +OECMAKE_NATIVE_RANLIB ?= "${BUILD_RANLIB}" +OECMAKE_NATIVE_NM ?= "${BUILD_NM}" + +# Native compiler flags +OECMAKE_NATIVE_C_FLAGS ?= "${BUILD_CC_ARCH} ${BUILD_CFLAGS}" +OECMAKE_NATIVE_CXX_FLAGS ?= "${BUILD_CC_ARCH} ${BUILD_CXXFLAGS}" +OECMAKE_NATIVE_C_FLAGS_RELEASE ?= "-DNDEBUG" +OECMAKE_NATIVE_CXX_FLAGS_RELEASE ?= "-DNDEBUG" +OECMAKE_NATIVE_C_LINK_FLAGS ?= "${BUILD_CC_ARCH} ${BUILD_CPPFLAGS} ${BUILD_LDFLAGS}" +OECMAKE_NATIVE_CXX_LINK_FLAGS ?= "${BUILD_CC_ARCH} ${BUILD_CXXFLAGS} ${BUILD_LDFLAGS}" +BUILD_CXXFLAGS += "${BUILD_CC_ARCH}" +BUILD_CFLAGS += "${BUILD_CC_ARCH}" + # clear compiler vars for allarch to avoid sig hash difference OECMAKE_C_COMPILER:allarch = "" OECMAKE_C_COMPILER_LAUNCHER:allarch = "" OECMAKE_CXX_COMPILER:allarch = "" OECMAKE_CXX_COMPILER_LAUNCHER:allarch = "" +OECMAKE_NATIVE_C_COMPILER:allarch = "" +OECMAKE_NATIVE_C_COMPILER_LAUNCHER:allarch = "" +OECMAKE_NATIVE_CXX_COMPILER:allarch = "" +OECMAKE_NATIVE_CXX_COMPILER_LAUNCHER:allarch = "" OECMAKE_RPATH ?= "" OECMAKE_PERLNATIVE_DIR ??= "" @@ -155,6 +178,41 @@ set( CMAKE_LIBRARY_PATH ${libdir} ${base_libdir}) list(APPEND CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES ${includedir}) list(APPEND CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES ${includedir}) +EOF + cat > ${WORKDIR}/toolchain-native.cmake <