Currently kernel builds fine with LLVM/clang on these archs: armv7hl https://abf.openmandriva.org/build_lists/611357 x86_64 https://abf.openmandriva.org/build_lists/610526 znver1 https://abf.openmandriva.org/build_lists/610531
aarch64 is hit by this bug https://github.com/ClangBuiltLinux/linux/issues/697 i686 is hit by this bug https://github.com/ClangBuiltLinux/linux/issues/3 riscv64 currently broken by glibc All these were compiled with ld.bfd as ld.lld have some bugs. I'm running x86_64 compiled kernel on two different laptops, and it looks like it boots and works. wt., 24 wrz 2019 o 08:35 Tomasz Gajc <[email protected]> napisał(a): > Hi, > > I've spent some time to get our kernel compiled with LLVM/clang-9.0.0 > > It's not tested at all. Feel free to try it. > > Some observations: > -O3 in clang works differently so it catches some error when compiling > APPLESMC module, so I've disabled it. > > objtool makefile needed a patch to skip user CFLAGS redefinition. > > Saa716x patch needs to be disabled as it generated some warnings which was > quite suspicious. > > VirtualBox module for disabled because using some GCC specific pragmas. > Iirc FreeBSD got some patches to build Vbox with clang. > > I had to use LLVM tools like ar, objcopy, nm etc. > > LLD generates lots of warnings due to enabled ICF and gc-secrions together. > > https://abf.openmandriva.org/build_lists/610456 >
