On Sun, Apr 5, 2020 at 3:56 PM Masahiro Yamada <masahiroy@xxxxxxxxxx> wrote: > > On Sun, Apr 5, 2020 at 8:23 PM Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote: > > > > On Thu, Apr 2, 2020 at 4:24 PM Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote: > > > > > > On Thu, Apr 2, 2020 at 10:18 AM Kees Cook <keescook@xxxxxxxxxxxx> wrote: > > > > > > > > When doing Clang builds of the kernel, it is possible to link with > > > > either ld.bfd (binutils) or ld.lld (LLVM), but it is not possible to > > > > discover this from a running kernel. Add the "$LD -v" output to > > > > /proc/version. > > > > > > > > Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx> > > > > > > > Please feel free and add: > > > > Reviewed-by: Sedat Dilek <sedat.dilek@xxxxxxxxx> > > Tested-by: Sedat Dilek <sedat.dilek@xxxxxxxxx> > > > Thanks. > > I collected all Reviewed-by and Tested-by. > How to test scripts/mkcompile_h? I did: $ cd /path/to/linux $ head -10 scripts/mkcompile_h #!/bin/sh # SPDX-License-Identifier: GPL-2.0 TARGET=$1 ARCH=$2 SMP=$3 PREEMPT=$4 PREEMPT_RT=$5 CC=$6 LD=$7 $ scripts/mkcompile_h include/generated/compile.h x86_64 SMP "" "" clang-10 ld.lld-10 UPD include/generated/compile.h $ cat include/generated/compile.h /* This file is auto generated, version 1 */ /* SMP */ #define UTS_MACHINE "x86_64" #define UTS_VERSION "#1 SMP Mon Apr 6 12:29:53 CEST 2020" #define LINUX_COMPILE_BY "dileks" #define LINUX_COMPILE_HOST "iniza" #define LINUX_COMPILER "clang version 10.0.0-2, LLD 10.0.0" This is with clang-10 and ld.lld-10 from Debian/unstable: $ clang-10 -v clang version 10.0.0-2 Target: x86_64-pc-linux-gnu Thread model: posix InstalledDir: /usr/bin Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/10 Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/8 Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/9 Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10 Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8 Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/9 Selected GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/10 Candidate multilib: .;@m64 Candidate multilib: 32;@m32 Candidate multilib: x32;@mx32 Selected multilib: .;@m64 $ ld.lld-10 -v LLD 10.0.0 (compatible with GNU linkers) Thanks. - sed@ -
