From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Will Deacon <will@kernel.org>
Subject: [PATCH 5.10 02/76] arm64: vdso32: require CROSS_COMPILE_COMPAT for gcc+bfd
Date: Mon, 27 Dec 2021 16:30:17 +0100 [thread overview]
Message-ID: <20211227151324.795741300@linuxfoundation.org> (raw)
In-Reply-To: <20211227151324.694661623@linuxfoundation.org>
From: Nick Desaulniers <ndesaulniers@google.com>
commit 3e6f8d1fa18457d54b20917bd9174d27daf09ab9 upstream.
Similar to
commit 231ad7f409f1 ("Makefile: infer --target from ARCH for CC=clang")
There really is no point in setting --target based on
$CROSS_COMPILE_COMPAT for clang when the integrated assembler is being
used, since
commit ef94340583ee ("arm64: vdso32: drop -no-integrated-as flag").
Allows COMPAT_VDSO to be selected without setting $CROSS_COMPILE_COMPAT
when using clang and lld together.
Before:
$ ARCH=arm64 CROSS_COMPILE_COMPAT=arm-linux-gnueabi- make -j72 LLVM=1 defconfig
$ grep CONFIG_COMPAT_VDSO .config
CONFIG_COMPAT_VDSO=y
$ ARCH=arm64 make -j72 LLVM=1 defconfig
$ grep CONFIG_COMPAT_VDSO .config
$
After:
$ ARCH=arm64 CROSS_COMPILE_COMPAT=arm-linux-gnueabi- make -j72 LLVM=1 defconfig
$ grep CONFIG_COMPAT_VDSO .config
CONFIG_COMPAT_VDSO=y
$ ARCH=arm64 make -j72 LLVM=1 defconfig
$ grep CONFIG_COMPAT_VDSO .config
CONFIG_COMPAT_VDSO=y
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Link: https://lore.kernel.org/r/20211019223646.1146945-5-ndesaulniers@google.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/arm64/Kconfig | 3 ++-
arch/arm64/kernel/vdso32/Makefile | 17 +++++------------
2 files changed, 7 insertions(+), 13 deletions(-)
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1265,7 +1265,8 @@ config KUSER_HELPERS
config COMPAT_VDSO
bool "Enable vDSO for 32-bit applications"
- depends on !CPU_BIG_ENDIAN && "$(CROSS_COMPILE_COMPAT)" != ""
+ depends on !CPU_BIG_ENDIAN
+ depends on (CC_IS_CLANG && LD_IS_LLD) || "$(CROSS_COMPILE_COMPAT)" != ""
select GENERIC_COMPAT_VDSO
default y
help
--- a/arch/arm64/kernel/vdso32/Makefile
+++ b/arch/arm64/kernel/vdso32/Makefile
@@ -10,18 +10,15 @@ include $(srctree)/lib/vdso/Makefile
# Same as cc-*option, but using CC_COMPAT instead of CC
ifeq ($(CONFIG_CC_IS_CLANG), y)
-CC_COMPAT_CLANG_FLAGS := --target=$(notdir $(CROSS_COMPILE_COMPAT:%-=%))
-
CC_COMPAT ?= $(CC)
-CC_COMPAT += $(CC_COMPAT_CLANG_FLAGS)
-
-ifneq ($(LLVM),)
-LD_COMPAT ?= $(LD)
+CC_COMPAT += --target=arm-linux-gnueabi
else
-LD_COMPAT ?= $(CROSS_COMPILE_COMPAT)ld
+CC_COMPAT ?= $(CROSS_COMPILE_COMPAT)gcc
endif
+
+ifeq ($(CONFIG_LD_IS_LLD), y)
+LD_COMPAT ?= $(LD)
else
-CC_COMPAT ?= $(CROSS_COMPILE_COMPAT)gcc
LD_COMPAT ?= $(CROSS_COMPILE_COMPAT)ld
endif
@@ -47,10 +44,6 @@ VDSO_CPPFLAGS += $(LINUXINCLUDE)
# Common C and assembly flags
# From top-level Makefile
VDSO_CAFLAGS := $(VDSO_CPPFLAGS)
-ifneq ($(shell $(CC_COMPAT) --version 2>&1 | head -n 1 | grep clang),)
-VDSO_CAFLAGS += --target=$(notdir $(CROSS_COMPILE_COMPAT:%-=%))
-endif
-
VDSO_CAFLAGS += $(call cc32-option,-fno-PIE)
ifdef CONFIG_DEBUG_INFO
VDSO_CAFLAGS += -g
next prev parent reply other threads:[~2021-12-27 15:42 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-27 15:30 [PATCH 5.10 00/76] 5.10.89-rc1 review Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 01/76] arm64: vdso32: drop -no-integrated-as flag Greg Kroah-Hartman
2021-12-27 15:30 ` Greg Kroah-Hartman [this message]
2021-12-27 15:30 ` [PATCH 5.10 03/76] net: usb: lan78xx: add Allied Telesis AT29M2-AF Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 04/76] ext4: prevent partial update of the extent blocks Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 05/76] ext4: check for out-of-order index extents in ext4_valid_extent_entries() Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 06/76] ext4: check for inconsistent extents between index and leaf block Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 07/76] HID: holtek: fix mouse probing Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 08/76] HID: potential dereference of null pointer Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 09/76] arm64: dts: allwinner: orangepi-zero-plus: fix PHY mode Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 10/76] spi: change clk_disable_unprepare to clk_unprepare Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 11/76] ASoC: meson: aiu: fifo: Add missing dma_coerce_mask_and_coherent() Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 12/76] IB/qib: Fix memory leak in qib_user_sdma_queue_pkts() Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 13/76] RDMA/hns: Replace kfree() with kvfree() Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 14/76] netfilter: fix regression in looped (broad|multi)casts MAC handling Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 15/76] ARM: dts: imx6qdl-wandboard: Fix Ethernet support Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 16/76] net: marvell: prestera: fix incorrect return of port_find Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 17/76] qlcnic: potential dereference null pointer of rx_queue->page_ring Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 18/76] net: accept UFOv6 packages in virtio_net_hdr_to_skb Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 19/76] net: skip virtio_net_hdr_set_proto if protocol already set Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 20/76] igb: fix deadlock caused by taking RTNL in RPM resume path Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 21/76] ipmi: Fix UAF when uninstall ipmi_si and ipmi_msghandler module Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 22/76] bonding: fix ad_actor_system option setting to default Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 23/76] fjes: Check for error irq Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 24/76] drivers: net: smc911x: " Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 25/76] net: ks8851: " Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 26/76] sfc: Check null pointer of rx_queue->page_ring Greg Kroah-Hartman
2021-12-29 11:17 ` Pavel Machek
2022-01-01 11:54 ` Martin Habets
2021-12-27 15:30 ` [PATCH 5.10 27/76] sfc: falcon: " Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 28/76] Input: elantech - fix stack out of bound access in elantech_change_report_id() Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 29/76] pinctrl: bcm2835: Change init order for gpio hogs Greg Kroah-Hartman
2021-12-31 9:52 ` Pavel Machek
2021-12-27 15:30 ` [PATCH 5.10 30/76] hwmon: (lm90) Fix usage of CONFIG2 register in detect function Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 31/76] hwmon: (lm90) Add basic support for TI TMP461 Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 32/76] hwmon: (lm90) Introduce flag indicating extended temperature support Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 33/76] hwmon: (lm90) Drop critical attribute support for MAX6654 Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 34/76] ALSA: jack: Check the return value of kstrdup() Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 35/76] ALSA: drivers: opl3: Fix incorrect use of vp->state Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 36/76] ALSA: hda/realtek: Amp init fixup for HP ZBook 15 G6 Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 37/76] ALSA: hda/realtek: Add new alc285-hp-amp-init model Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 38/76] ALSA: hda/realtek: Fix quirk for Clevo NJ51CU Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 39/76] ASoC: meson: aiu: Move AIU_I2S_MISC hold setting to aiu-fifo-i2s Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 40/76] Input: atmel_mxt_ts - fix double free in mxt_read_info_block Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 41/76] ipmi: bail out if init_srcu_struct fails Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 42/76] ipmi: ssif: initialize ssif_info->client early Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 43/76] ipmi: fix initialization when workqueue allocation fails Greg Kroah-Hartman
2021-12-27 15:30 ` [PATCH 5.10 44/76] parisc: Correct completer in lws start Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 45/76] parisc: Fix mask used to select futex spinlock Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 46/76] tee: handle lookup of shm with reference count 0 Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 47/76] x86/pkey: Fix undefined behaviour with PKRU_WD_BIT Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 48/76] platform/x86: intel_pmc_core: fix memleak on registration failure Greg Kroah-Hartman
2021-12-31 10:04 ` Pavel Machek
2021-12-31 10:18 ` Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 49/76] KVM: VMX: Wake vCPU when delivering posted IRQ even if vCPU == this vCPU Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 50/76] pinctrl: stm32: consider the GPIO offset to expose all the GPIO lines Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 51/76] gpio: dln2: Fix interrupts when replugging the device Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 52/76] mmc: sdhci-tegra: Fix switch to HS400ES mode Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 53/76] mmc: meson-mx-sdhc: Set MANUAL_STOP for multi-block SDIO commands Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 54/76] mmc: core: Disable card detect during shutdown Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 55/76] mmc: mmci: stm32: clear DLYB_CR after sending tuning command Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 56/76] ARM: 9169/1: entry: fix Thumb2 bug in iWMMXt exception handling Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 57/76] mac80211: fix locking in ieee80211_start_ap error path Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 58/76] mm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page() Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 59/76] tee: optee: Fix incorrect page free bug Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 60/76] f2fs: fix to do sanity check on last xattr entry in __f2fs_setxattr() Greg Kroah-Hartman
2022-01-03 21:11 ` Salvatore Bonaccorso
2022-01-04 9:29 ` Chao Yu
2022-01-04 9:56 ` Salvatore Bonaccorso
2022-01-04 10:22 ` Greg Kroah-Hartman
2022-01-04 21:10 ` Jaegeuk Kim
2022-01-05 8:10 ` Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 61/76] ceph: fix up non-directory creation in SGID directories Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 62/76] usb: gadget: u_ether: fix race in setting MAC address in setup phase Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 63/76] KVM: VMX: Fix stale docs for kvm-intel.emulate_invalid_guest_state Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 64/76] mm: mempolicy: fix THP allocations escaping mempolicy restrictions Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 65/76] Input: elants_i2c - do not check Remark ID on eKTH3900/eKTH5312 Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 66/76] Input: i8042 - enable deferred probe quirk for ASUS UM325UA Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 67/76] Input: goodix - add id->model mapping for the "9111" model Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 68/76] ASoC: tas2770: Fix setting of high sample rates Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 69/76] ASoC: rt5682: fix the wrong jack type detected Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 70/76] pinctrl: mediatek: fix global-out-of-bounds issue Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 71/76] hwmom: (lm90) Fix citical alarm status for MAX6680/MAX6681 Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 72/76] hwmon: (lm90) Do not report busy status bit as alarm Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 73/76] ax25: NPD bug when detaching AX25 device Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 74/76] hamradio: defer ax25 kfree after unregister_netdev Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 75/76] hamradio: improve the incomplete fix to avoid NPD Greg Kroah-Hartman
2021-12-27 15:31 ` [PATCH 5.10 76/76] phonet/pep: refuse to enable an unbound pipe Greg Kroah-Hartman
2021-12-27 18:02 ` [PATCH 5.10 00/76] 5.10.89-rc1 review Florian Fainelli
2021-12-28 8:12 ` Naresh Kamboju
2021-12-28 13:22 ` Sudip Mukherjee
2021-12-28 17:07 ` Guenter Roeck
2021-12-28 21:27 ` Shuah Khan
2021-12-29 1:33 ` Samuel Zou
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