Messages in this thread | | | Date | Tue, 15 Mar 2016 12:22:18 +0300 | Subject | Re: next-20160314 - KASAN breaks 'make C=2' build... | From | Andrey Ryabinin <> |
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2016-03-15 12:11 GMT+03:00 Valdis Kletnieks <Valdis.Kletnieks@vt.edu>: > This config breaks sparse: > > grep KASAN .config > CONFIG_KASAN_SHADOW_OFFSET=0xdffffc0000000000 > CONFIG_HAVE_ARCH_KASAN=y > CONFIG_KASAN=y > # CONFIG_KASAN_OUTLINE is not set > CONFIG_KASAN_INLINE=y > CONFIG_TEST_KASAN=m > > LANG=C make C=2 > CHK include/config/kernel.release > CHK include/generated/uapi/linux/version.h > CHK include/generated/utsrelease.h > CHK include/generated/bounds.h > CHK include/generated/timeconst.h > CHK include/generated/asm-offsets.h > CALL scripts/checksyscalls.sh > DESCEND objtool > CHECK scripts/mod/empty.c > No such file: asan-stack=1 > scripts/Makefile.build:291: recipe for target 'scripts/mod/empty.o' failed > make[2]: *** [scripts/mod/empty.o] Error 1 > scripts/Makefile.build:440: recipe for target 'scripts/mod' failed > make[1]: *** [scripts/mod] Error 2 > Makefile:552: recipe for target 'scripts' failed > make: *** [scripts] Error 2 > > Looks like it's this chunk from scripts/Makefile.kasan: > > CFLAGS_KASAN := $(call cc-option, -fsanitize=kernel-address > -fasan-shadow-offset=$(KASAN_SHADOW_OFFSET) > --param asan-stack=1 --param asan-globals=1 > --param asan-instrumentation-with-call-threshold=$(call_threshold)) > > 4AM is a bad time to figure out who's to blame here....
Update your sparse please. Make sure it has d917662d54ba ("lib.c: skip --param parameters").
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