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Date: Thu, 31 Mar 2016 15:54:45 +0200 From: Alexander Potapenko <glider@...gle.com> To: dvyukov@...gle.com, catalin.marinas@....com, quentin.casasnovas@...cle.com, will.deacon@....com Cc: linux-kernel@...r.kernel.org, syzkaller@...glegroups.com, linux-arm-kernel@...ts.infradead.org, kcc@...gle.com, akpm@...ux-foundation.org Subject: [PATCH v1] arm64: allow building with kcov coverage on ARM64 Add ARCH_HAS_KCOV to ARM64 config. Disable instrumentation of arch/arm64/lib/delay.c Signed-off-by: Alexander Potapenko <glider@...gle.com> --- arch/arm64/Kconfig | 1 + arch/arm64/lib/Makefile | 3 +++ 2 files changed, 4 insertions(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 4f43622..c52aa61 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -7,6 +7,7 @@ config ARM64 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE select ARCH_HAS_ELF_RANDOMIZE select ARCH_HAS_GCOV_PROFILE_ALL + select ARCH_HAS_KCOV select ARCH_HAS_SG_CHAIN select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_USE_CMPXCHG_LOCKREF diff --git a/arch/arm64/lib/Makefile b/arch/arm64/lib/Makefile index c86b790..b407bc1 100644 --- a/arch/arm64/lib/Makefile +++ b/arch/arm64/lib/Makefile @@ -1,3 +1,6 @@ +# Produces uninteresting flaky coverage. +KCOV_INSTRUMENT_delay.o := n + lib-y := bitops.o clear_user.o delay.o copy_from_user.o \ copy_to_user.o copy_in_user.o copy_page.o \ clear_page.o memchr.o memcpy.o memmove.o memset.o \ -- 2.8.0.rc3.226.g39d4020
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