From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
Ingo Molnar <mingo@kernel.org>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.14 07/14] x86/build: Turn off -fcf-protection for realmode targets
Date: Fri, 9 Apr 2021 11:53:32 +0200 [thread overview]
Message-ID: <20210409095300.627874417@linuxfoundation.org> (raw)
In-Reply-To: <20210409095300.391558233@linuxfoundation.org>
From: Arnd Bergmann <arnd@arndb.de>
[ Upstream commit 9fcb51c14da2953de585c5c6e50697b8a6e91a7b ]
The new Ubuntu GCC packages turn on -fcf-protection globally,
which causes a build failure in the x86 realmode code:
cc1: error: ‘-fcf-protection’ is not compatible with this target
Turn it off explicitly on compilers that understand this option.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210323124846.1584944-1-arnd@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 9f33a69b5605..146aadeb7c8e 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -35,7 +35,7 @@ REALMODE_CFLAGS := $(M16_CFLAGS) -g -Os -D__KERNEL__ \
-DDISABLE_BRANCH_PROFILING \
-Wall -Wstrict-prototypes -march=i386 -mregparm=3 \
-fno-strict-aliasing -fomit-frame-pointer -fno-pic \
- -mno-mmx -mno-sse
+ -mno-mmx -mno-sse $(call cc-option,-fcf-protection=none)
REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -ffreestanding)
REALMODE_CFLAGS += $(call __cc-option, $(CC), $(REALMODE_CFLAGS), -fno-stack-protector)
--
2.30.2
next prev parent reply other threads:[~2021-04-09 9:57 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-09 9:53 [PATCH 4.14 00/14] 4.14.230-rc1 review Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.14 01/14] ARM: dts: am33xx: add aliases for mmc interfaces Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.14 02/14] net: pxa168_eth: Fix a potential data race in pxa168_eth_remove Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.14 03/14] mISDN: fix crash in fritzpci Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.14 04/14] mac80211: choose first enabled channel for monitor Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.14 05/14] drm/msm: Ratelimit invalid-fence message Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.14 06/14] platform/x86: thinkpad_acpi: Allow the FnLock LED to change state Greg Kroah-Hartman
2021-04-09 9:53 ` Greg Kroah-Hartman [this message]
2021-04-09 9:53 ` [PATCH 4.14 08/14] scsi: target: pscsi: Clean up after failure in pscsi_map_sg() Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.14 09/14] ia64: mca: allocate early mca with GFP_ATOMIC Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.14 10/14] cifs: revalidate mapping when we open files for SMB1 POSIX Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.14 11/14] cifs: Silently ignore unknown oplock break handle Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.14 12/14] bpf, x86: Validate computation of branch displacements for x86-64 Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.14 13/14] init/Kconfig: make COMPILE_TEST depend on !S390 Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.14 14/14] init/Kconfig: make COMPILE_TEST depend on HAS_IOMEM Greg Kroah-Hartman
2021-04-09 20:13 ` [PATCH 4.14 00/14] 4.14.230-rc1 review Guenter Roeck
2021-04-10 4:53 ` Guenter Roeck
2021-04-10 9:21 ` Naresh Kamboju
2021-04-10 15:46 ` Guenter Roeck
2021-04-10 13:15 ` Greg Kroah-Hartman
2021-04-10 15:01 ` Guenter Roeck
2021-04-10 9:19 ` Naresh Kamboju
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