From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>, Ingo Molnar <mingo@kernel.org>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 4.19 10/15] x86/build: Turn off -fcf-protection for realmode targets
Date: Mon, 29 Mar 2021 18:23:21 -0400 [thread overview]
Message-ID: <20210329222327.2383533-10-sashal@kernel.org> (raw)
In-Reply-To: <20210329222327.2383533-1-sashal@kernel.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 75200b421f29..6ebdbad21fb2 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -34,7 +34,7 @@ M16_CFLAGS := $(call cc-option, -m16, $(CODE16GCC_CFLAGS))
REALMODE_CFLAGS := $(M16_CFLAGS) -g -Os -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)
--
2.30.1
next prev parent reply other threads:[~2021-03-29 22:29 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-29 22:23 [PATCH AUTOSEL 4.19 01/15] ARM: dts: am33xx: add aliases for mmc interfaces Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 02/15] bus: ti-sysc: Fix warning on unbind if reset is not deasserted Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 03/15] platform/x86: intel-hid: Support Lenovo ThinkPad X1 Tablet Gen 2 Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 04/15] net: pxa168_eth: Fix a potential data race in pxa168_eth_remove Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 05/15] mISDN: fix crash in fritzpci Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 06/15] mac80211: fix double free in ibss_leave Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 07/15] mac80211: choose first enabled channel for monitor Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 08/15] drm/msm: Ratelimit invalid-fence message Sasha Levin
2021-03-29 22:23 ` Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 09/15] platform/x86: thinkpad_acpi: Allow the FnLock LED to change state Sasha Levin
2021-03-29 22:23 ` Sasha Levin [this message]
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 11/15] scsi: target: pscsi: Clean up after failure in pscsi_map_sg() Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 12/15] ia64: mca: allocate early mca with GFP_ATOMIC Sasha Levin
2021-03-29 22:23 ` Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 13/15] ia64: fix format strings for err_inject Sasha Levin
2021-03-29 22:23 ` Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 14/15] cifs: revalidate mapping when we open files for SMB1 POSIX Sasha Levin
2021-03-29 22:23 ` [PATCH AUTOSEL 4.19 15/15] cifs: Silently ignore unknown oplock break handle Sasha Levin
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