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authorNathan Chancellor <nathan@kernel.org>2021-06-17 22:31:40 +0300
committerVasily Gorbik <gor@linux.ibm.com>2021-06-28 12:18:28 +0300
commite2bc3e91d91ede6710801fa0737e4e4ed729b19e (patch)
treeef6027b31cc1f2cf6534ebaadba5f488a80810f8
parent5a4e0f58e2d959e2de0f0f1ddaa169e60711d2f0 (diff)
downloadlinux-e2bc3e91d91ede6710801fa0737e4e4ed729b19e.tar.xz
scripts/min-tool-version.sh: Raise minimum clang version to 13.0.0 for s390
clang versions prior to the current development version of 13.0.0 cannot compile s390 after commit 3abbdfde5a65 ("s390/bitops: use register pair instead of register asm") and the s390 maintainers do not intend to work around this in the kernel. Codify this in scripts/min-tool-version.sh similar to arm64 with GCC 5.1.0 so that there are no reports of broken builds. [hca@linux.ibm.com: breaking compatibility with older clang compilers is intended to finally make use of a feature which allows the compiler to allocate even/odd register pairs. This is possible since a very long time with gcc, but only since llvm-project commit d058262b1471 ("[SystemZ] Support i128 inline asm operands.") with clang. Using that feature allows to get rid of error prone register asm statements, of which the above named kernel commit is only the first of a larger not yet complete series.] Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Acked-by: Nick Desaulniers <ndesaulniers@google.com> Acked-by: Masahiro Yamada <masahiroy@kernel.org> Link: https://lore.kernel.org/r/20210617193139.856957-1-nathan@kernel.org Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
-rwxr-xr-xscripts/min-tool-version.sh7
1 files changed, 6 insertions, 1 deletions
diff --git a/scripts/min-tool-version.sh b/scripts/min-tool-version.sh
index d22cf91212b0..319f92104f56 100755
--- a/scripts/min-tool-version.sh
+++ b/scripts/min-tool-version.sh
@@ -30,7 +30,12 @@ icc)
echo 16.0.3
;;
llvm)
- echo 10.0.1
+ # https://lore.kernel.org/r/YMtib5hKVyNknZt3@osiris/
+ if [ "$SRCARCH" = s390 ]; then
+ echo 13.0.0
+ else
+ echo 10.0.1
+ fi
;;
*)
echo "$1: unknown tool" >&2