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 5.10 20/41] x86/build: Turn off -fcf-protection for realmode targets
Date: Fri, 9 Apr 2021 11:53:42 +0200 [thread overview]
Message-ID: <20210409095305.483201173@linuxfoundation.org> (raw)
In-Reply-To: <20210409095304.818847860@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 0a6d497221e4..9c86f2dc16b1 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 += -ffreestanding
REALMODE_CFLAGS += -fno-stack-protector
--
2.30.2
next prev parent reply other threads:[~2021-04-09 10:07 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-09 9:53 [PATCH 5.10 00/41] 5.10.29-rc1 review Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 01/41] ARM: dts: am33xx: add aliases for mmc interfaces Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 02/41] bus: ti-sysc: Fix warning on unbind if reset is not deasserted Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 03/41] platform/x86: intel-hid: Support Lenovo ThinkPad X1 Tablet Gen 2 Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 04/41] bpf, x86: Use kvmalloc_array instead kmalloc_array in bpf_jit_comp Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 05/41] net/mlx5e: Enforce minimum value check for ICOSQ size Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 06/41] net: pxa168_eth: Fix a potential data race in pxa168_eth_remove Greg Kroah-Hartman
2021-04-09 10:33 ` Pavel Machek
2021-04-09 9:53 ` [PATCH 5.10 07/41] kunit: tool: Fix a python tuple typing error Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 08/41] mISDN: fix crash in fritzpci Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 09/41] mac80211: Check crypto_aead_encrypt for errors Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 10/41] mac80211: choose first enabled channel for monitor Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 11/41] drm/msm/dsi_pll_7nm: Fix variable usage for pll_lockdet_rate Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 12/41] drm/msm/adreno: a5xx_power: Dont apply A540 lm_setup to other GPUs Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 13/41] drm/msm: Ratelimit invalid-fence message Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 14/41] netfilter: conntrack: Fix gre tunneling over ipv6 Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 15/41] netfilter: nftables: skip hook overlap logic if flowtable is stale Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 16/41] net: ipa: fix init header command validation Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 17/41] platform/x86: thinkpad_acpi: Allow the FnLock LED to change state Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 18/41] kselftest/arm64: sve: Do not use non-canonical FFR register value Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 19/41] drm/msm/disp/dpu1: icc path needs to be set before dpu runtime resume Greg Kroah-Hartman
2021-04-09 9:53 ` Greg Kroah-Hartman [this message]
2021-04-09 9:53 ` [PATCH 5.10 21/41] block: clear GD_NEED_PART_SCAN later in bdev_disk_changed Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 22/41] platform/x86: intel_pmc_core: Ignore GBE LTR on Tiger Lake platforms Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 23/41] ptp_qoriq: fix overflow in ptp_qoriq_adjfine() u64 calcalation Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 24/41] scsi: target: pscsi: Clean up after failure in pscsi_map_sg() Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 25/41] selftests/vm: fix out-of-tree build Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 26/41] ia64: mca: allocate early mca with GFP_ATOMIC Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 27/41] ia64: fix format strings for err_inject Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 28/41] cifs: revalidate mapping when we open files for SMB1 POSIX Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 29/41] cifs: Silently ignore unknown oplock break handle Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 30/41] io_uring: fix timeout cancel return code Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 31/41] math: Export mul_u64_u64_div_u64 Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 32/41] tools/resolve_btfids: Build libbpf and libsubcmd in separate directories Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 33/41] tools/resolve_btfids: Check objects before removing Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 34/41] tools/resolve_btfids: Set srctree variable unconditionally Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 35/41] kbuild: Add resolve_btfids clean to root clean target Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 36/41] kbuild: Do not clean resolve_btfids if the output does not exist Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.10 37/41] tools/resolve_btfids: Add /libbpf to .gitignore Greg Kroah-Hartman
2021-04-09 9:54 ` [PATCH 5.10 38/41] bpf, x86: Validate computation of branch displacements for x86-64 Greg Kroah-Hartman
2021-04-09 19:53 ` Sudip Mukherjee
2021-04-09 9:54 ` [PATCH 5.10 39/41] bpf, x86: Validate computation of branch displacements for x86-32 Greg Kroah-Hartman
2021-04-09 19:51 ` Sudip Mukherjee
2021-04-09 20:13 ` Daniel Borkmann
2021-04-09 9:54 ` [PATCH 5.10 40/41] init/Kconfig: make COMPILE_TEST depend on !S390 Greg Kroah-Hartman
2021-04-09 9:54 ` [PATCH 5.10 41/41] init/Kconfig: make COMPILE_TEST depend on HAS_IOMEM Greg Kroah-Hartman
2021-04-09 15:09 ` [PATCH 5.10 00/41] 5.10.29-rc1 review Andrei Rabusov
2021-04-09 18:10 ` Florian Fainelli
2021-04-09 20:14 ` Guenter Roeck
2021-04-09 20:38 ` Shuah Khan
2021-04-09 21:24 ` Sudip Mukherjee
2021-04-10 0:55 ` Samuel Zou
2021-04-10 7:23 ` Naresh Kamboju
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