yocto/meta-clang/README.md

1 …https://github.com/kraj/meta-clang/workflows/Yoe%20Distro%20CI/badge.svg?branch=master)](https://g…
3 # meta-clang (C/C++ frontend and LLVM compiler backend)
5 This layer provides [clang/llvm](http://clang.llvm.org/) as alternative to system
15 git clone git://github.com/kraj/meta-clang.git
24 git clone git://github.com/kraj/meta-clang.git
29 Add meta-clang overlay
31 bitbake-layers add-layer ../meta-clang
34 Check `conf/bblayers.conf` to see that meta-clang is added to layer mix e.g.
39 clang to be the default compiler then set
42 TOOLCHAIN ?= "clang"
45 in `local.conf`, this would now switch default cross-compiler to be clang
46 you can select clang per recipe too by writing bbappends for them containing
49 TOOLCHAIN = "clang"
52 build with clang.
59 GNU runtime works with both GCC and Clang, LLVM runtime is only tested with Clang
86 LIBCPLUSPLUS:toolchain-clang:pn-<recipe> = "-stdlibc=libc++"
93 # Adding clang in generated SDK toolchain
95 Clang based cross compiler is not included into the generated SDK using `bitbake meta-toolchain` or
96 `bitbake -cpopulate_sdk <image>` if clang is expected to be part of SDK, add `CLANGSDK = "1"`
118 Few components do not build with clang, if you have a component to add to that list
130 CXX:remove:pn-<recipe>:toolchain-clang = " -stdlib=libc++ "
141 …/OE/build/oe-core/tmp-glibc/work-shared/llvm-project-source-12.0.0-r0/git/clang/lib/Driver/ToolCha…
143 Read add_more_target_vendors function in recipes-devtools/clang/llvm-project-source.inc for more de…
147 …o-linux/compiler-rt/12.0.0-r0/recipe-sysroot-native/usr/bin/x86_64-foo-linux/x86_64-foo-linux-clang
150 …o-linux/compiler-rt/12.0.0-r0/recipe-sysroot-native/usr/bin/x86_64-foo-linux/x86_64-foo-linux-clang
151 …ompiler-rt/12.0.0-r0/recipe-sysroot-native/usr/bin/x86_64-foo-linux/x86_64-foo-linux-clang - broken
155 …-linux/compiler-rt/12.0.0-r0/recipe-sysroot-native/usr/bin/x86_64-foo-linux/x86_64-foo-linux-clang"