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 5.11 23/45] x86/build: Turn off -fcf-protection for realmode targets
Date: Fri, 9 Apr 2021 11:53:49 +0200 [thread overview]
Message-ID: <20210409095306.162939565@linuxfoundation.org> (raw)
In-Reply-To: <20210409095305.397149021@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 30920d70b48b..828f24d547b2 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -27,7 +27,7 @@ endif
REALMODE_CFLAGS := -m16 -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 10:11 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-09 9:53 [PATCH 5.11 00/45] 5.11.13-rc1 review Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 01/45] ARM: dts: am33xx: add aliases for mmc interfaces Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 02/45] bus: ti-sysc: Fix warning on unbind if reset is not deasserted Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 03/45] drm/msm: a6xx: Make sure the SQE microcode is safe Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 04/45] platform/x86: intel-hid: Support Lenovo ThinkPad X1 Tablet Gen 2 Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 05/45] bpf, x86: Use kvmalloc_array instead kmalloc_array in bpf_jit_comp Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 06/45] net/mlx5e: Enforce minimum value check for ICOSQ size Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 07/45] net: pxa168_eth: Fix a potential data race in pxa168_eth_remove Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 08/45] kunit: tool: Fix a python tuple typing error Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 09/45] mISDN: fix crash in fritzpci Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 10/45] net: arcnet: com20020 fix error handling Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 11/45] can: kvaser_usb: Add support for USBcan Pro 4xHS Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 12/45] mac80211: Check crypto_aead_encrypt for errors Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 13/45] mac80211: choose first enabled channel for monitor Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 14/45] drm/msm/dsi_pll_7nm: Fix variable usage for pll_lockdet_rate Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 15/45] drm/msm/adreno: a5xx_power: Dont apply A540 lm_setup to other GPUs Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 16/45] drm/msm: Ratelimit invalid-fence message Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 17/45] netfilter: conntrack: Fix gre tunneling over ipv6 Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 18/45] netfilter: nftables: skip hook overlap logic if flowtable is stale Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 19/45] net: ipa: fix init header command validation Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 20/45] platform/x86: thinkpad_acpi: Allow the FnLock LED to change state Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 21/45] kselftest/arm64: sve: Do not use non-canonical FFR register value Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 22/45] 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 5.11 24/45] block: clear GD_NEED_PART_SCAN later in bdev_disk_changed Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 25/45] platform/x86: intel_pmt_class: Initial resource to 0 Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 26/45] platform/x86: intel_pmc_core: Ignore GBE LTR on Tiger Lake platforms Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 27/45] ptp_qoriq: fix overflow in ptp_qoriq_adjfine() u64 calcalation Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 28/45] scsi: target: pscsi: Clean up after failure in pscsi_map_sg() Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 29/45] arm64: kernel: disable CNP on Carmel Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 30/45] selftests/vm: fix out-of-tree build Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 31/45] ia64: mca: allocate early mca with GFP_ATOMIC Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 32/45] ia64: fix format strings for err_inject Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 5.11 33/45] cifs: revalidate mapping when we open files for SMB1 POSIX Greg Kroah-Hartman
2021-04-09 9:54 ` [PATCH 5.11 34/45] cifs: Silently ignore unknown oplock break handle Greg Kroah-Hartman
2021-04-09 9:54 ` [PATCH 5.11 35/45] io_uring: fix timeout cancel return code Greg Kroah-Hartman
2021-04-09 9:54 ` [PATCH 5.11 36/45] math: Export mul_u64_u64_div_u64 Greg Kroah-Hartman
2021-04-09 9:54 ` [PATCH 5.11 37/45] tools/resolve_btfids: Build libbpf and libsubcmd in separate directories Greg Kroah-Hartman
2021-04-09 9:54 ` [PATCH 5.11 38/45] tools/resolve_btfids: Check objects before removing Greg Kroah-Hartman
2021-04-09 9:54 ` [PATCH 5.11 39/45] tools/resolve_btfids: Set srctree variable unconditionally Greg Kroah-Hartman
2021-04-09 9:54 ` [PATCH 5.11 40/45] kbuild: Add resolve_btfids clean to root clean target Greg Kroah-Hartman
2021-04-09 9:54 ` [PATCH 5.11 41/45] kbuild: Do not clean resolve_btfids if the output does not exist Greg Kroah-Hartman
2021-04-09 9:54 ` [PATCH 5.11 42/45] tools/resolve_btfids: Add /libbpf to .gitignore Greg Kroah-Hartman
2021-04-09 9:54 ` [PATCH 5.11 43/45] bpf, x86: Validate computation of branch displacements for x86-64 Greg Kroah-Hartman
2021-04-09 9:54 ` [PATCH 5.11 44/45] bpf, x86: Validate computation of branch displacements for x86-32 Greg Kroah-Hartman
2021-04-09 9:54 ` [PATCH 5.11 45/45] init/Kconfig: make COMPILE_TEST depend on HAS_IOMEM Greg Kroah-Hartman
2021-04-09 20:14 ` [PATCH 5.11 00/45] 5.11.13-rc1 review Guenter Roeck
2021-04-09 20:38 ` Shuah Khan
2021-04-10 6:26 ` Naresh Kamboju
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