[PATCH 7/7] arm64: disable kcov instrument in header files

Jiao, Joey quic_jiangenj at quicinc.com
Mon Jan 13 21:34:37 PST 2025


Disable instrument which causes recursive call to __sanitizer_cov_trace_pc

Signed-off-by: Jiao, Joey <quic_jiangenj at quicinc.com>
---
 arch/arm64/include/asm/percpu.h  | 2 +-
 arch/arm64/include/asm/preempt.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/include/asm/percpu.h b/arch/arm64/include/asm/percpu.h
index 9abcc8ef3087b7066c82db983ae2753f30607f7f..a40ff8168151bb481756d0f6cb341aa8dc52a121 100644
--- a/arch/arm64/include/asm/percpu.h
+++ b/arch/arm64/include/asm/percpu.h
@@ -29,7 +29,7 @@ static inline unsigned long __hyp_my_cpu_offset(void)
 	return read_sysreg(tpidr_el2);
 }
 
-static inline unsigned long __kern_my_cpu_offset(void)
+static __no_sanitize_coverage inline unsigned long __kern_my_cpu_offset(void)
 {
 	unsigned long off;
 
diff --git a/arch/arm64/include/asm/preempt.h b/arch/arm64/include/asm/preempt.h
index 0159b625cc7f0e7d6996b34b4de8e71b04ca32e5..a8742a57481a8bf7f1e35b9cd8b0fd9a37f0ba78 100644
--- a/arch/arm64/include/asm/preempt.h
+++ b/arch/arm64/include/asm/preempt.h
@@ -8,7 +8,7 @@
 #define PREEMPT_NEED_RESCHED	BIT(32)
 #define PREEMPT_ENABLED	(PREEMPT_NEED_RESCHED)
 
-static inline int preempt_count(void)
+static __no_sanitize_coverage inline int preempt_count(void)
 {
 	return READ_ONCE(current_thread_info()->preempt.count);
 }

-- 
2.47.1




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