linux-kernel - [PATCH 02/24] x86/traps: Move arch/x86/kernel/traps.c to arch/x86/entry/

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Date:   Wed,  1 Sep 2021 01:50:03 +0800
From:   Lai Jiangshan <jiangshanlai@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Lai Jiangshan <laijs@...ux.alibaba.com>,
        Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
        Joerg Roedel <jroedel@...e.de>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Daniel Bristot de Oliveira <bristot@...hat.com>,
        Brijesh Singh <brijesh.singh@....com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Arvind Sankar <nivedita@...m.mit.edu>,
        Chester Lin <clin@...e.com>, Juergen Gross <jgross@...e.com>
Subject: [PATCH 02/24] x86/traps: Move arch/x86/kernel/traps.c to arch/x86/entry/

From: Lai Jiangshan <laijs@...ux.alibaba.com>

traps.c handles works for entries.  It is very close to the code in
arch/x86/entry/.  So we move traps.c to arch/x86/entry/.

It is also prepared for later patches that implements C version of
the entry code in traps.c.

Signed-off-by: Lai Jiangshan <laijs@...ux.alibaba.com>
---
 arch/x86/entry/Makefile            | 5 ++++-
 arch/x86/{kernel => entry}/traps.c | 0
 arch/x86/kernel/Makefile           | 5 +----
 3 files changed, 5 insertions(+), 5 deletions(-)
 rename arch/x86/{kernel => entry}/traps.c (100%)

diff --git a/arch/x86/entry/Makefile b/arch/x86/entry/Makefile
index 7fec5dcf6438..4e26248cea33 100644
--- a/arch/x86/entry/Makefile
+++ b/arch/x86/entry/Makefile
@@ -11,8 +11,11 @@ CFLAGS_REMOVE_common.o		= $(CC_FLAGS_FTRACE)
 
 CFLAGS_common.o			+= -fno-stack-protector
 
+CFLAGS_REMOVE_traps.o		= -fstack-protector -fstack-protector-strong
+CFLAGS_traps.o			+= -fno-stack-protector
+
 obj-y				:= entry_$(BITS).o thunk_$(BITS).o syscall_$(BITS).o
-obj-y				+= common.o
+obj-y				+= common.o traps.o
 
 obj-y				+= vdso/
 obj-y				+= vsyscall/
diff --git a/arch/x86/kernel/traps.c b/arch/x86/entry/traps.c
similarity index 100%
rename from arch/x86/kernel/traps.c
rename to arch/x86/entry/traps.c
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 21aa164cece2..5ba80522f5da 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -48,14 +48,11 @@ KCOV_INSTRUMENT		:= n
 
 CFLAGS_head$(BITS).o	+= -fno-stack-protector
 
-CFLAGS_REMOVE_traps.o		= -fstack-protector -fstack-protector-strong
-CFLAGS_traps.o			+= -fno-stack-protector
-
 CFLAGS_irq.o := -I $(srctree)/$(src)/../include/asm/trace
 
 obj-y			:= process_$(BITS).o signal.o
 obj-$(CONFIG_COMPAT)	+= signal_compat.o
-obj-y			+= traps.o idt.o irq.o irq_$(BITS).o dumpstack_$(BITS).o
+obj-y			+= idt.o irq.o irq_$(BITS).o dumpstack_$(BITS).o
 obj-y			+= time.o ioport.o dumpstack.o nmi.o
 obj-$(CONFIG_MODIFY_LDT_SYSCALL)	+= ldt.o
 obj-y			+= setup.o x86_init.o i8259.o irqinit.o
-- 
2.19.1.6.gb485710b