clang: Do not provide llvm-native implicitly

Document a way to let clang provide llvm as well.
This helps this layer pass the yocto check layer test

Signed-off-by: Khem Raj <raj.khem@gmail.com>

3 files changed, 14 insertions, 6 deletions

diff --git a/README.md b/README.md
index ca2984a..ba92408 100644
--- a/README.md
+++ b/README.md
@@ -51,6 +51,20 @@ TOOLCHAIN = "clang"
 also look at `conf/nonclangable.conf` for list of recipes which do not yet fully
 build with clang.
 
+# Providing LLVM
+
+clang recipes can provide llvm and related packages too, it might be worth using single
+provider for llvm and clang to save some compile time and space, select the knobs
+to point to clang, default is to use the version provided by core layer.
+
+```shell
+PREFERRED_PROVIDER_llvm = "clang"
+PREFERRED_PROVIDER_llvm-native = "clang-native"
+PREFERRED_PROVIDER_nativesdk-llvm = "nativesdk-clang"
+PROVIDES:pn-clang = "llvm"
+PROVIDES:pn-clang-native = "llvm-native"
+PROVIDES:pn-nativesdk-clang = "nativesdk-llvm"
+```
 # Default Compiler Runtime
 
 Default is to use GNU runtime `RUNTIME = "gnu"` which consists of libgcc, libstdc++ to provide C/C++
diff --git a/conf/layer.conf b/conf/layer.conf
index f846833..0fbb12f 100644
--- a/conf/layer.conf
+++ b/conf/layer.conf
@@ -23,9 +23,6 @@ BBFILES_DYNAMIC += " \
 
 PREFERRED_PROVIDER_libgcc-initial = "libgcc-initial"
 #PREFERRED_PROVIDER_virtual/${TARGET_PREFIX}compilerlibs_forcevariable = "libcxx"
-PREFERRED_PROVIDER_llvm = "clang"
-PREFERRED_PROVIDER_llvm-native = "clang-native"
-PREFERRED_PROVIDER_nativesdk-llvm = "nativesdk-clang"
 PREFERRED_PROVIDER_libunwind = "${@bb.utils.contains_any("RUNTIME", "llvm android", "libcxx", "libunwind", d)}"
 INHERIT += "clang"
 
diff --git a/recipes-devtools/clang/clang_git.bb b/recipes-devtools/clang/clang_git.bb
index 15ba27c..654fa49 100644
--- a/recipes-devtools/clang/clang_git.bb
+++ b/recipes-devtools/clang/clang_git.bb
@@ -281,9 +281,6 @@ do_install:append:class-nativesdk () {
 PACKAGES =+ "${PN}-libllvm ${PN}-lldb-python ${PN}-libclang-cpp ${PN}-tidy ${PN}-format ${PN}-tools \
              libclang lldb lldb-server liblldb llvm-linker-tools"
 
-PROVIDES += "llvm llvm${PV}"
-PROVIDES:append:class-native = " llvm-native"
-
 BBCLASSEXTEND = "native nativesdk"
 
 RDEPENDS:lldb += "${PN}-lldb-python lldb-server"