From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: stable@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
patches@lists.linux.dev, Nathan Chancellor <nathan@kernel.org>,
Masahiro Yamada <masahiroy@kernel.org>,
Heiko Carstens <hca@linux.ibm.com>,
Tom Saeger <tom.saeger@oracle.com>
Subject: [PATCH 6.1 39/46] s390: define RUNTIME_DISCARD_EXIT to fix link error with GNU ld < 2.36
Date: Thu, 23 Feb 2023 14:06:46 +0100 [thread overview]
Message-ID: <20230223130433.417238604@linuxfoundation.org> (raw)
In-Reply-To: <20230223130431.553657459@linuxfoundation.org>
From: Masahiro Yamada <masahiroy@kernel.org>
commit a494398bde273143c2352dd373cad8211f7d94b2 upstream.
Nathan Chancellor reports that the s390 vmlinux fails to link with
GNU ld < 2.36 since commit 99cb0d917ffa ("arch: fix broken BuildID
for arm64 and riscv").
It happens for defconfig, or more specifically for CONFIG_EXPOLINE=y.
$ s390x-linux-gnu-ld --version | head -n1
GNU ld (GNU Binutils for Debian) 2.35.2
$ make -s ARCH=s390 CROSS_COMPILE=s390x-linux-gnu- allnoconfig
$ ./scripts/config -e CONFIG_EXPOLINE
$ make -s ARCH=s390 CROSS_COMPILE=s390x-linux-gnu- olddefconfig
$ make -s ARCH=s390 CROSS_COMPILE=s390x-linux-gnu-
`.exit.text' referenced in section `.s390_return_reg' of drivers/base/dd.o: defined in discarded section `.exit.text' of drivers/base/dd.o
make[1]: *** [scripts/Makefile.vmlinux:34: vmlinux] Error 1
make: *** [Makefile:1252: vmlinux] Error 2
arch/s390/kernel/vmlinux.lds.S wants to keep EXIT_TEXT:
.exit.text : {
EXIT_TEXT
}
But, at the same time, EXIT_TEXT is thrown away by DISCARD because
s390 does not define RUNTIME_DISCARD_EXIT.
I still do not understand why the latter wins after 99cb0d917ffa,
but defining RUNTIME_DISCARD_EXIT seems correct because the comment
line in arch/s390/kernel/vmlinux.lds.S says:
/*
* .exit.text is discarded at runtime, not link time,
* to deal with references from __bug_table
*/
Nathan also found that binutils commit 21401fc7bf67 ("Duplicate output
sections in scripts") cured this issue, so we cannot reproduce it with
binutils 2.36+, but it is better to not rely on it.
Fixes: 99cb0d917ffa ("arch: fix broken BuildID for arm64 and riscv")
Link: https://lore.kernel.org/all/Y7Jal56f6UBh1abE@dev-arch.thelio-3990X/
Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20230105031306.1455409-1-masahiroy@kernel.org
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/s390/kernel/vmlinux.lds.S | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -17,6 +17,8 @@
/* Handle ro_after_init data on our own. */
#define RO_AFTER_INIT_DATA
+#define RUNTIME_DISCARD_EXIT
+
#define EMITS_PT_NOTE
#include <asm-generic/vmlinux.lds.h>
next prev parent reply other threads:[~2023-02-23 13:10 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-23 13:06 [PATCH 6.1 00/46] 6.1.14-rc1 review Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 01/46] drm/etnaviv: dont truncate physical page address Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 02/46] wifi: ath11k: fix warning in dma_free_coherent() of memory chunks while recovery Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 03/46] wifi: rtl8xxxu: gen2: Turn on the rate control Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 04/46] drm/edid: Fix minimum bpc supported with DSC1.2 for HDMI sink Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 05/46] clk: mxl: Switch from direct readl/writel based IO to regmap based IO Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 06/46] clk: mxl: Remove redundant spinlocks Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 07/46] clk: mxl: Add option to override gate clks Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 08/46] clk: mxl: Fix a clk entry by adding relevant flags Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 09/46] powerpc: dts: t208x: Mark MAC1 and MAC2 as 10G Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 10/46] clk: mxl: syscon_node_to_regmap() returns error pointers Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 11/46] sched/psi: Stop relying on timer_pending() for poll_work rescheduling Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 12/46] random: always mix cycle counter in add_latent_entropy() Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 13/46] scsi: libsas: Add smp_ata_check_ready_type() Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 14/46] scsi: hisi_sas: Fix SATA devices missing issue during I_T nexus reset Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 15/46] spi: mediatek: Enable irq when pdata is ready Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 16/46] docs: perf: Fix PMU instance name of hisi-pcie-pmu Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 17/46] KVM: x86: Fail emulation during EMULTYPE_SKIP on any exception Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 18/46] KVM: SVM: Skip WRMSR fastpath on VM-Exit if next RIP isnt valid Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 19/46] KVM: VMX: Execute IBPB on emulated VM-exit when guest has IBRS Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 20/46] can: kvaser_usb: hydra: help gcc-13 to figure out cmd_len Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 21/46] powerpc: dts: t208x: Disable 10G on MAC1 and MAC2 Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 22/46] spi: mediatek: Enable irq before the spi registration Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 23/46] drm/i915: Remove __maybe_unused from mtl_info Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 24/46] KVM: x86: fix deadlock for KVM_XEN_EVTCHN_RESET Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 25/46] selftests: kvm: move declaration at the beginning of main() Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 26/46] powerpc/64s/radix: Fix RWX mapping with relocated kernel Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 27/46] nfp: ethtool: support reporting link modes Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 28/46] nfp: ethtool: fix the bug of setting unsupported port speed Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 29/46] uaccess: Add speculation barrier to copy_from_user() Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 30/46] x86/alternatives: Introduce int3_emulate_jcc() Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 31/46] x86/alternatives: Teach text_poke_bp() to patch Jcc.d32 instructions Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 32/46] x86/static_call: Add support for Jcc tail-calls Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 33/46] Bluetooth: btusb: Add more device IDs for WCN6855 Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 34/46] riscv: remove special treatment for the link order of head.o Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 35/46] arm64: " Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 36/46] arch: fix broken BuildID for arm64 and riscv Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 37/46] powerpc/vmlinux.lds: Define RUNTIME_DISCARD_EXIT Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 38/46] powerpc/vmlinux.lds: Dont discard .rela* for relocatable builds Greg Kroah-Hartman
2023-02-23 13:06 ` Greg Kroah-Hartman [this message]
2023-02-23 13:06 ` [PATCH 6.1 40/46] sh: define RUNTIME_DISCARD_EXIT Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 41/46] wifi: mwifiex: Add missing compatible string for SD8787 Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 42/46] audit: update the mailing list in MAINTAINERS Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 43/46] platform/x86/amd/pmf: Add depends on CONFIG_POWER_SUPPLY Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 44/46] platform/x86: nvidia-wmi-ec-backlight: Add force module parameter Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 45/46] ext4: Fix function prototype mismatch for ext4_feat_ktype Greg Kroah-Hartman
2023-02-23 13:06 ` [PATCH 6.1 46/46] randstruct: disable Clang 15 support Greg Kroah-Hartman
2023-02-23 14:33 ` [PATCH 6.1 00/46] 6.1.14-rc1 review Conor Dooley
2023-02-23 14:37 ` Greg Kroah-Hartman
2023-02-23 14:41 ` Conor Dooley
2023-02-23 14:38 ` Naresh Kamboju
2023-02-23 16:31 ` Greg Kroah-Hartman
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