* [PATCH V2 27/41] x86/mce: Remove stack protector from mce/core.c
[not found] <20210926150838.197719-1-jiangshanlai@gmail.com>
@ 2021-09-26 15:08 ` Lai Jiangshan
0 siblings, 0 replies; only message in thread
From: Lai Jiangshan @ 2021-09-26 15:08 UTC (permalink / raw)
To: linux-kernel
Cc: Lai Jiangshan, Tony Luck, Borislav Petkov, Thomas Gleixner,
Ingo Molnar, x86, H. Peter Anvin, linux-edac
From: Lai Jiangshan <laijs@linux.alibaba.com>
mce/core.c is going to contain __entry_code which can not be instrumented
by stack protector.
Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
---
arch/x86/kernel/cpu/mce/Makefile | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/x86/kernel/cpu/mce/Makefile b/arch/x86/kernel/cpu/mce/Makefile
index 015856abdbb1..ce192c5344fc 100644
--- a/arch/x86/kernel/cpu/mce/Makefile
+++ b/arch/x86/kernel/cpu/mce/Makefile
@@ -1,4 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
+
+CFLAGS_REMOVE_core.o = -fstack-protector -fstack-protector-strong
+CFLAGS_core.o += -fno-stack-protector
+
obj-y = core.o severity.o genpool.o
obj-$(CONFIG_X86_ANCIENT_MCE) += winchip.o p5.o
--
2.19.1.6.gb485710b
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2021-09-26 15:08 ` [PATCH V2 27/41] x86/mce: Remove stack protector from mce/core.c Lai Jiangshan
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