From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sami Tolvanen <samitolvanen@google.com>,
Kees Cook <keescook@chromium.org>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 4.19 11/21] x86, build: use objtool mcount
Date: Tue, 2 Mar 2021 06:58:25 -0500 [thread overview]
Message-ID: <20210302115835.63269-11-sashal@kernel.org> (raw)
In-Reply-To: <20210302115835.63269-1-sashal@kernel.org>
From: Sami Tolvanen <samitolvanen@google.com>
[ Upstream commit 6dafca97803309c3cb5148d449bfa711e41ddef2 ]
Select HAVE_OBJTOOL_MCOUNT if STACK_VALIDATION is selected to use
objtool to generate __mcount_loc sections for dynamic ftrace with
Clang and gcc <5 (later versions of gcc use -mrecord-mcount).
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/x86/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index af35f5caadbe..4ae2ffa8ad7b 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -137,6 +137,7 @@ config X86
select HAVE_CONTEXT_TRACKING if X86_64
select HAVE_COPY_THREAD_TLS
select HAVE_C_RECORDMCOUNT
+ select HAVE_OBJTOOL_MCOUNT if STACK_VALIDATION
select HAVE_DEBUG_KMEMLEAK
select HAVE_DEBUG_STACKOVERFLOW
select HAVE_DMA_CONTIGUOUS
--
2.30.1
next prev parent reply other threads:[~2021-03-02 14:02 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-02 11:58 [PATCH AUTOSEL 4.19 01/21] i2c: rcar: optimize cacheline to minimize HW race condition Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 02/21] udf: fix silent AED tagLocation corruption Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 03/21] mmc: mxs-mmc: Fix a resource leak in an error handling path in 'mxs_mmc_probe()' Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 04/21] mmc: sdhci-of-dwcmshc: set SDHCI_QUIRK2_PRESET_VALUE_BROKEN Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 05/21] mmc: mediatek: fix race condition between msdc_request_timeout and irq Sasha Levin
2021-03-02 11:58 ` Sasha Levin
2021-03-02 11:58 ` Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 06/21] powerpc/pci: Add ppc_md.discover_phbs() Sasha Levin
2021-03-02 11:58 ` Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 07/21] powerpc: improve handling of unrecoverable system reset Sasha Levin
2021-03-02 11:58 ` Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 08/21] powerpc/perf: Record counter overflow always if SAMPLE_IP is unset Sasha Levin
2021-03-02 11:58 ` Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 09/21] sparc32: Limit memblock allocation to low memory Sasha Levin
2021-03-02 11:58 ` Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 10/21] sparc64: Use arch_validate_flags() to validate ADI flag Sasha Levin
2021-03-02 11:58 ` Sasha Levin
2021-03-02 11:58 ` Sasha Levin [this message]
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 12/21] PCI: xgene-msi: Fix race in installing chained irq handler Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 13/21] misc: eeprom_93xx46: Add quirk to support Microchip 93LC46B eeprom Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 14/21] PCI: mediatek: Add missing of_node_put() to fix reference leak Sasha Levin
2021-03-02 11:58 ` Sasha Levin
2021-03-02 11:58 ` Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 15/21] drm/msm/a5xx: Remove overwriting A5XX_PC_DBG_ECO_CNTL register Sasha Levin
2021-03-02 11:58 ` Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 16/21] PCI: Fix pci_register_io_range() memory leak Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 17/21] i40e: Fix memory leak in i40e_probe Sasha Levin
2021-03-02 11:58 ` [Intel-wired-lan] " Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 18/21] s390/smp: __smp_rescan_cpus() - move cpumask away from stack Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 19/21] scsi: libiscsi: Fix iscsi_prep_scsi_cmd_pdu() error handling Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 20/21] scsi: target: core: Add cmd length set before cmd complete Sasha Levin
2021-03-02 11:58 ` Sasha Levin
2021-03-02 11:58 ` [PATCH AUTOSEL 4.19 21/21] scsi: target: core: Prevent underflow for service actions Sasha Levin
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