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List:       kernel-hardening
Subject:    [PATCH 16/22] arm64: export CC_USING_PATCHABLE_FUNCTION_ENTRY
From:       Sami Tolvanen <samitolvanen () google ! com>
Date:       2020-06-24 20:31:54
Message-ID: 20200624203200.78870-17-samitolvanen () google ! com
[Download RAW message or body]

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@google.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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