Thread (212 messages) 212 messages, 19 authors, 2020-09-10
STALE2080d
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[PATCH v2 22/28] arm64: export CC_USING_PATCHABLE_FUNCTION_ENTRY

From: Sami Tolvanen <samitolvanen@google.com>
Date: 2020-09-03 20:33:32
Also in: linux-arch, linux-kbuild, linux-pci, lkml
Subsystem: arm64 port (aarch64 architecture), the rest · Maintainers: Catalin Marinas, Will Deacon, Linus Torvalds

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 130569f90c54..eeaf3c2e0971 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -127,6 +127,7 @@ 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
-- 
2.28.0.402.g5ffc5be6b7-goog


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