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| author | Arnd Bergmann <arnd@arndb.de> | 2018-07-04 03:02:49 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-07-04 03:32:19 +0300 |
| commit | 5e4e290d3751607726a62f0b49e11261a0a9345e (patch) | |
| tree | 593f481c81fef22506d9bc94586357f3bfd0e02d /arch | |
| parent | 1e8e18f694a52d703665012ca486826f64bac29d (diff) | |
| download | linux-5e4e290d3751607726a62f0b49e11261a0a9345e.tar.xz | |
ARM: disable KCOV for trusted foundations code
The ARM trusted foundations code is currently broken in linux-next when
CONFIG_KCOV_INSTRUMENT_ALL is set:
/tmp/ccHdQsCI.s: Assembler messages:
/tmp/ccHdQsCI.s:37: Error: .err encountered
/tmp/ccHdQsCI.s:38: Error: .err encountered
/tmp/ccHdQsCI.s:39: Error: .err encountered
scripts/Makefile.build:311: recipe for target 'arch/arm/firmware/trusted_foundations.o' failed
I could not find a function attribute that lets me disable
-fsanitize-coverage=trace-pc for just one function, so this turns it off
for the entire file instead.
Link: http://lkml.kernel.org/r/20180529103636.1535457-1-arnd@arndb.de
Fixes: 758517202bd2e4 ("arm: port KCOV to arm")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Olof Johansson <olof@lixom.net>
Tested-by: Olof Johansson <olof@lixom.net>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/firmware/Makefile | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/firmware/Makefile b/arch/arm/firmware/Makefile index a71f16536b6c..6e41336b0bc4 100644 --- a/arch/arm/firmware/Makefile +++ b/arch/arm/firmware/Makefile @@ -1 +1,4 @@ obj-$(CONFIG_TRUSTED_FOUNDATIONS) += trusted_foundations.o + +# tf_generic_smc() fails to build with -fsanitize-coverage=trace-pc +KCOV_INSTRUMENT := n |