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Message-Id: <20200624203200.78870-17-samitolvanen@google.com>
Date: Wed, 24 Jun 2020 13:31:54 -0700
From: Sami Tolvanen <samitolvanen@...gle.com>
To: Masahiro Yamada <masahiroy@...nel.org>, Will Deacon <will@...nel.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Paul E. McKenney" <paulmck@...nel.org>,
Kees Cook <keescook@...omium.org>, Nick Desaulniers <ndesaulniers@...gle.com>,
clang-built-linux@...glegroups.com, kernel-hardening@...ts.openwall.com,
linux-arch@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-pci@...r.kernel.org, x86@...nel.org,
Sami Tolvanen <samitolvanen@...gle.com>
Subject: [PATCH 16/22] arm64: export CC_USING_PATCHABLE_FUNCTION_ENTRY
Since arm64 does not use -pg in CC_FLAGS_FTRACE with
DYNAMIC_FTRACE_WITH_REGS, skip running recordmcount by
exporting CC_USING_PATCHABLE_FUNCTION_ENTRY.
Signed-off-by: Sami Tolvanen <samitolvanen@...gle.com>
---
arch/arm64/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index a0d94d063fa8..fc6c20a10291 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -115,6 +115,7 @@ endif
ifeq ($(CONFIG_DYNAMIC_FTRACE_WITH_REGS),y)
KBUILD_CPPFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY
CC_FLAGS_FTRACE := -fpatchable-function-entry=2
+ export CC_USING_PATCHABLE_FUNCTION_ENTRY := 1
endif
# Default value
--
2.27.0.212.ge8ba1cc988-goog
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