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[v2] libcxx: remove no-atomics from PACKAGECONFIG

Message ID 20260211070026.3805544-1-hongxu.jia@windriver.com
State Under Review
Headers show
Series [v2] libcxx: remove no-atomics from PACKAGECONFIG | expand

Commit Message

Hongxu Jia Feb. 11, 2026, 7 a.m. UTC 
In commit [1], upstream has dropped _LIBCXXABI_HAS_ATOMIC_BUILTINS,
clean up no-atomics from PACKAGECONFIG otherwise build for qemuarmv5
failed

$ echo "MACHINE = 'qemuarmv5'" >> conf/local.conf
$ bitbake libcxx
...
| tmp/work/armv5e-oe-linux-gnueabi/libcxx/21.1.8/recipe-sysroot-native/usr/bin/arm-oe-linux-gnueabi/
arm-oe-linux-gnueabi-ld: cannot find -latomic: No such file or directory
| arm-oe-linux-gnueabi-clang++: error: linker command failed with exit code 1 (use -v to see invocation)
...

[1] https://github.com/llvm/llvm-project/commit/f8b1cc36578608f2f840d7ea8b0aa9b28fdaa492

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
---
 meta/recipes-devtools/clang/libcxx_git.bb | 2 --
 1 file changed, 2 deletions(-)
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Patch

diff --git a/meta/recipes-devtools/clang/libcxx_git.bb b/meta/recipes-devtools/clang/libcxx_git.bb
index fee7cfc9ea..42b2c91e43 100644
--- a/meta/recipes-devtools/clang/libcxx_git.bb
+++ b/meta/recipes-devtools/clang/libcxx_git.bb
@@ -13,10 +13,8 @@  inherit cmake
 BPN = "libcxx"
 
 PACKAGECONFIG ??= "exceptions ${@bb.utils.contains("TC_CXX_RUNTIME", "llvm", "llvm-unwind", "", d)}"
-PACKAGECONFIG:append:armv5 = " no-atomics"
 
 PACKAGECONFIG[exceptions] = "-DLIBCXXABI_ENABLE_EXCEPTIONS=ON -DLIBCXX_ENABLE_EXCEPTIONS=ON,-DLIBCXXABI_ENABLE_EXCEPTIONS=OFF -DLIBCXX_ENABLE_EXCEPTIONS=OFF -DCMAKE_REQUIRED_FLAGS='-fno-exceptions',"
-PACKAGECONFIG[no-atomics] = "-D_LIBCXXABI_HAS_ATOMIC_BUILTINS=OFF -DCMAKE_SHARED_LINKER_FLAGS='-latomic',,"
 PACKAGECONFIG[llvm-unwind] = "-DLIBCXXABI_USE_LLVM_UNWINDER=ON,-DLIBCXXABI_USE_LLVM_UNWINDER=OFF"
 
 DEPENDS:append:class-target = " virtual/cross-c++ ${MLPREFIX}clang-cross-${TARGET_ARCH} virtual/${MLPREFIX}libc compiler-rt libgcc"