On Wed, Aug 22, 2018 at 6:02 PM, Linus Torvalds <torva...@linux-foundation.org> wrote: > On Wed, Aug 22, 2018 at 5:25 PM Dominique Martinet > <asmad...@codewreck.org> wrote: >> >> Overall looks good to me, just pointing at the same error I wrote in my >> other mail here -- I saw that by the time I was done writing this this >> patch got taken but that alone will probably warrant a follow-up :/ > > I've fixed that manually, but when I tried to test it I just hit the > > arch/x86/Makefile:179: *** Compiler lacks asm-goto support.. Stop. > > error. > > Do you have some experimental clang build with asm goto support? What > version? Or is it just that you're building ARM, not x86?
FWIW, when I do Clang test builds lately[1], I've been using: make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- CC=clang (Note this requires a cross-compiled binutils installed in the PATH with as aarch64-linux-gnu-*, which is where Debian and Ubuntu put them.) -Kees [1] for today's defconfig build to finish, I had to: ./scripts/config -d CONFIG_ARM64_LSE_ATOMICS (I think my binutils are old) and comment out the BUILD_BUG_ON() in net/core/filter.c from 2dbb9b9e6df67 (which looks like it needs some attention since gcc has no problem with this) -- Kees Cook Pixel Security
