| Message ID | 20161114053546.1051-1-raj.khem@gmail.com |
|---|---|
| State | Superseded |
| Headers | show |
diff --git a/meta/classes/cmake.bbclass b/meta/classes/cmake.bbclass index 3e762de..fad0baa 100644 --- a/meta/classes/cmake.bbclass +++ b/meta/classes/cmake.bbclass @@ -19,6 +19,8 @@ OECMAKE_C_FLAGS_RELEASE ?= "-DNDEBUG" OECMAKE_CXX_FLAGS_RELEASE ?= "-DNDEBUG" OECMAKE_C_LINK_FLAGS ?= "${HOST_CC_ARCH} ${TOOLCHAIN_OPTIONS} ${CPPFLAGS} ${LDFLAGS}" OECMAKE_CXX_LINK_FLAGS ?= "${HOST_CC_ARCH} ${TOOLCHAIN_OPTIONS} ${CXXFLAGS} ${LDFLAGS}" +CXXFLAGS += "${HOST_CC_ARCH} ${TOOLCHAIN_OPTIONS}" +CFLAGS += "${HOST_CC_ARCH} ${TOOLCHAIN_OPTIONS}" OECMAKE_RPATH ?= "" OECMAKE_PERLNATIVE_DIR ??= ""
We strip the TOOLCHAIN_OPTIONS and HOST_CC_ARCH from CC/CXX in cmake.bbclass whereas CFLAFS and CXXFLAGS assume that TOOLCHAIN_OPTIONS are part of CC/CXX variables, this causes compile failures when cmake is running compiler tests during configure on some architectures especially armhf, because hf ABI information -mfloat-abi is part of TOOLCHAIN_OPTIONS, so what happens is that testcase gets compiled without hard-float, howver, during linking the float ABI option is passed via LDFLAGS, now linker rejects this and fails like /mnt/a/build/tmp-glibc/sysroots/x86_64-linux/usr/libexec/arm-oe-linux-gnueabi/gcc/arm-oe-linux-gnueabi/6.2.0/ld: error: cmTC_27947 uses VFP register arguments, CMakeFiles/cmTC_27947.dir/src.cxx.o does not mnt/a/build/tmp-glibc/sysroots/x86_64-linux/usr/libexec/arm-oe-linux-gnueabi/gcc/arm-oe-linux-gnueabi/6.2.0/ld: failed to merge target specific data of file CMakeFiles/cmTC_27947.dir/src.cxx.o collect2: error: ld returned 1 exit status This means that CMake now fails the configure time test too which is not right, e.g. it might disable features which actually do exist and should be enabled e.g. in case above it is resulting as below Performing C++ SOURCE FILE Test HAS_BUILTIN_SYNC_SUB_AND_FETCH failed with the following output: Its actually a bug in CMake see https://gitlab.kitware.com/cmake/cmake/issues/16421 CMake is ignoring CMAKE_CXX_FLAGS when using CHECK_CXX_SOURCE_COMPILES function. Until it is fixed upstream, we add HOST_CC_ARCH and TOOLCHAIN_OPTIONS to CFLAGS and CXXFLAGS, so that we can ensure that compiler invocation remains consistent. Signed-off-by: Khem Raj <raj.khem@gmail.com> --- meta/classes/cmake.bbclass | 2 ++ 1 file changed, 2 insertions(+) -- 2.10.2 -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core