From: Mark Brown <broonie@kernel.org>
To: Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Sudeep Holla <sudeep.holla@arm.com>,
linux-arm-kernel@lists.infradead.org,
Mark Brown <broonie@kernel.org>
Subject: [PATCH v1 1/2] arm64: asmlinkage: Enable use of BTI_C macro in SYM_CODE
Date: Tue, 18 May 2021 11:09:18 +0100 [thread overview]
Message-ID: <20210518100919.6674-2-broonie@kernel.org> (raw)
In-Reply-To: <20210518100919.6674-1-broonie@kernel.org>
SYM_CODE sections may require BTI landing pads but won't have them
automatically generated by the symbol definiton macros. Make an empty
version of the BTI_C macro available so that they can more easily create
the landing pads if they need them.
Signed-off-by: Mark Brown <broonie@kernel.org>
---
arch/arm64/include/asm/linkage.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm64/include/asm/linkage.h b/arch/arm64/include/asm/linkage.h
index ba89a9af820a..d98f9af8b8ec 100644
--- a/arch/arm64/include/asm/linkage.h
+++ b/arch/arm64/include/asm/linkage.h
@@ -42,6 +42,10 @@
SYM_START(name, SYM_L_WEAK, SYM_A_NONE) \
BTI_C
+#else
+
+#define BTI_C
+
#endif
/*
--
2.20.1
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next prev parent reply other threads:[~2021-05-18 10:21 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-18 10:09 [PATCH v1 0/2] arm64: Implement SMCCC v1.3 SVE register saving hint Mark Brown
2021-05-18 10:09 ` Mark Brown [this message]
2021-05-18 10:09 ` [PATCH v1 2/2] arm64: smccc: Support " Mark Brown
2021-05-18 10:53 ` Marc Zyngier
2021-05-18 11:53 ` Mark Brown
2021-05-18 12:14 ` Marc Zyngier
2021-05-18 13:01 ` Mark Brown
2021-05-18 16:53 ` Ard Biesheuvel
2021-05-18 16:43 ` Sudeep Holla
2021-05-18 16:55 ` Mark Brown
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