linux-kernel - [PATCH AUTOSEL 6.3 08/11] LoongArch: Add ARCH_HAS_FORTIFY

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Message-Id: <20230511193757.623114-8-sashal@kernel.org>
Date:   Thu, 11 May 2023 15:37:51 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Qing Zhang <zhangqing@...ngson.cn>,
        Huacai Chen <chenhuacai@...ngson.cn>,
        Sasha Levin <sashal@...nel.org>, chenhuacai@...nel.org,
        loongarch@...ts.linux.dev
Subject: [PATCH AUTOSEL 6.3 08/11] LoongArch: Add ARCH_HAS_FORTIFY_SOURCE selection

From: Qing Zhang <zhangqing@...ngson.cn>

[ Upstream commit d4c937c2a57bbba24790be6fe7a791456f5fbb60 ]

FORTIFY_SOURCE could detect various overflows at compile and run time.
ARCH_HAS_FORTIFY_SOURCE means that the architecture can be built and run
with CONFIG_FORTIFY_SOURCE. So select it in LoongArch.

See more about this feature from commit 6974f0c4555e285 ("include/linux/
string.h: add the option of fortified string.h functions").

Signed-off-by: Qing Zhang <zhangqing@...ngson.cn>
Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/loongarch/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index 3ddde336e6a56..3e5d6acbf2409 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -10,6 +10,7 @@ config LOONGARCH
 	select ARCH_ENABLE_MEMORY_HOTPLUG
 	select ARCH_ENABLE_MEMORY_HOTREMOVE
 	select ARCH_HAS_ACPI_TABLE_UPGRADE	if ACPI
+	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS
 	select ARCH_HAS_PTE_SPECIAL
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
-- 
2.39.2