kraj/meta-clang

kernel build error

lxy1579 opened this issue · 3 comments

lxy1579 commented

Describe the bug
some kernel configuration options are disabled after do_configure.

To Reproduce
Steps to reproduce the behavior:
bitbake virtual/kernel -c configure

Expected behavior
git diff .oldconfig .config

-c option can't use with '-fuse-ld=lld'

kraj commented

we do not use clang to compile by default for kernel it still uses gcc and binutils. Maybe you can disable lld to build kenrel.

KERNEL_LD = "${CCACHE}${HOST_PREFIX}ld.bfd ${HOST_LD_KERNEL_ARCH}"
lxy1579 commented

It will be OK if I compile kernel by removing -fuse-ld=lld from KERNEL_CC, but I also set KERNEL_LD = "${CCACHE}${HOST_PREFIX}ld.lld". Verify that the final image(vmlinux) is also generated through ld.lld link

lxy1579 commented

we do not use clang to compile by default for kernel it still uses gcc and binutils. Maybe you can disable lld to build kenrel.

KERNEL_LD = "${CCACHE}${HOST_PREFIX}ld.bfd ${HOST_LD_KERNEL_ARCH}"

Is there a plan to support LLVM=1 parameter to kernel build?

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