linux-kernel - [PATCH v4 3/9] riscv: Fixup wrong ftrace remove cflag

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Date:   Sat, 17 Oct 2020 07:06:11 +0000
From:   guoren@...nel.org
To:     palmerdabbelt@...gle.com, paul.walmsley@...ive.com,
        mhiramat@...nel.org, alankao@...estech.com, rostedt@...dmis.org
Cc:     linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        anup@...infault.org, linux-csky@...r.kernel.org,
        greentime.hu@...ive.com, zong.li@...ive.com, guoren@...nel.org,
        me@...ki.ch, Guo Ren <guoren@...ux.alibaba.com>
Subject: [PATCH v4 3/9] riscv: Fixup wrong ftrace remove cflag

From: Guo Ren <guoren@...ux.alibaba.com>

We must use $(CC_FLAGS_FTRACE) instead of directly using -pg. It
will cause -fpatchable-function-entry error.

Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
---
 arch/riscv/kernel/Makefile | 4 ++--
 arch/riscv/mm/Makefile     | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/riscv/kernel/Makefile b/arch/riscv/kernel/Makefile
index dc93710..f14aed2 100644
--- a/arch/riscv/kernel/Makefile
+++ b/arch/riscv/kernel/Makefile
@@ -4,8 +4,8 @@
 #
 
 ifdef CONFIG_FTRACE
-CFLAGS_REMOVE_ftrace.o	= -pg
-CFLAGS_REMOVE_patch.o	= -pg
+CFLAGS_REMOVE_ftrace.o	= $(CC_FLAGS_FTRACE)
+CFLAGS_REMOVE_patch.o	= $(CC_FLAGS_FTRACE)
 endif
 
 extra-y += head.o
diff --git a/arch/riscv/mm/Makefile b/arch/riscv/mm/Makefile
index c0185e5..6b4b7ec 100644
--- a/arch/riscv/mm/Makefile
+++ b/arch/riscv/mm/Makefile
@@ -2,7 +2,7 @@
 
 CFLAGS_init.o := -mcmodel=medany
 ifdef CONFIG_FTRACE
-CFLAGS_REMOVE_init.o = -pg
+CFLAGS_REMOVE_init.o = $(CC_FLAGS_FTRACE)
 endif
 
 KCOV_INSTRUMENT_init.o := n
-- 
2.7.4