My two cents, We know clang-10 support is stopped, but our build system is still running these builds with clang-10. one of those observations is, The LKFT build failures were noticed while building x86_64 and i386 with clang-10 on linux next-20210514 tag. - x86_64 (defconfig) with clang-10 - FAIL - i386 (defconfig) with clang-10 - FAIL - x86_64 (defconfig) with clang-11 - PASS - i386 (defconfig) with clang-11 - PASS - x86_64 (defconfig) with clang-12 - PASS - i386 (defconfig) with clang-12 - PASS Build log: ---------- make --silent --keep-going --jobs=8 O=/home/tuxbuild/.cache/tuxmake/builds/current ARCH=x86_64 CROSS_COMPILE=x86_64-linux-gnu- 'HOSTCC=sccache clang' 'CC=sccache clang' drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o: warning: objtool: eb_relocate_parse_slow()+0x427: stack state mismatch: cfa1=4+120 cfa2=-1+0 drivers/gpu/drm/i915/gem/i915_gem_execbuffer.o: warning: objtool: eb_copy_relocations()+0x1d5: stack state mismatch: cfa1=4+104 cfa2=-1+0 x86_64-linux-gnu-ld: arch/x86/kernel/kprobes/opt.o: in function `arch_prepare_optimized_kprobe': opt.c:(.text+0x798): undefined reference to `__compiletime_assert_251' make[1]: *** [/builds/linux/Makefile:1272: vmlinux] Error 1 ref: https://builds.tuxbuild.com/1sW0ag5finSjVuErrrzeunjj1nx/ -- Linaro LKFT https://lkft.linaro.org
