x86: add comments about the binutils version to support code in as-instr

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We raise the minimal supported binutils version from time to time.
The last bump was commit 1fb12b35e5 ("kbuild: Raise the minimum
required binutils version to 2.21").

We have these as-instr tests because binutils 2.21 does not support
them.

When we bump the binutils version next time, this will be a good
hint to find out which one can be dropped.

As for the Clang/LLVM builds, we require very new LLVM version,
so the LLVM integrated assembler supports all of them.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>

...

This commit is contained in:

Masahiro Yamada 2020-03-26 17:00:59 +09:00

parent 5e8ebd841a

commit e9e070cfe1

1 changed files with 10 additions and 0 deletions

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arch/x86/Kconfig.assembler

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