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authorArnd Bergmann <[email protected]>2023-04-18 14:23:35 +0200
committerAndrew Morton <[email protected]>2023-04-18 16:29:43 -0700
commit90fd833609c82487a0eca1581becde7ab54d9429 (patch)
treea4bb565d2be1077e8215a2a563805f6ed2541b1e /tools/perf/scripts/python/event_analyzing_sample.py
parentf7ddb612568361e04d53fcd984d43d1c32c1294a (diff)
kasan: remove hwasan-kernel-mem-intrinsic-prefix=1 for clang-14
Some unknown -mllvm options (i.e. those starting with the letter "h") don't cause an error to be returned by clang, so the cc-option helper adds the unknown hwasan-kernel-mem-intrinsic-prefix=1 flag to CFLAGS with compilers that are new enough for hwasan but too old for this option. This causes a rather unreadable build failure: fixdep: error opening file: scripts/mod/.empty.o.d: No such file or directory make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:252: scripts/mod/empty.o] Error 2 fixdep: error opening file: scripts/mod/.devicetable-offsets.s.d: No such file or directory make[4]: *** [/home/arnd/arm-soc/scripts/Makefile.build:114: scripts/mod/devicetable-offsets.s] Error 2 Add a version check to only allow this option with clang-15, gcc-13 or later versions. Link: https://lkml.kernel.org/r/[email protected] Fixes: 51287dcb00cc ("kasan: emit different calls for instrumentable memintrinsics") Link: https://lore.kernel.org/all/CANpmjNMwYosrvqh4ogDO8rgn+SeDHM2b-shD21wTypm_6MMe=g@mail.gmail.com/ Signed-off-by: Arnd Bergmann <[email protected]> Reviewed-by: Marco Elver <[email protected]> Reviewed-by: Nathan Chancellor <[email protected]> Cc: Alexander Potapenko <[email protected]> Cc: Andrey Konovalov <[email protected]> Cc: Andrey Ryabinin <[email protected]> Cc: Dmitry Vyukov <[email protected]> Cc: Masahiro Yamada <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Nick Desaulniers <[email protected]> Cc: Nicolas Schier <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Tom Rix <[email protected]> Cc: Vincenzo Frascino <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
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