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 4.9 06/10] x86, build: use objtool mcount
Date: Tue, 2 Mar 2021 06:59:17 -0500 [thread overview]
Message-ID: <20210302115921.63636-6-sashal@kernel.org> (raw)
In-Reply-To: <20210302115921.63636-1-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 80636caee07c..b03d075ee9ee 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -101,6 +101,7 @@ 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_API_DEBUG
--
2.30.1
next prev parent reply other threads:[~2021-03-02 15:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-02 11:59 [PATCH AUTOSEL 4.9 01/10] udf: fix silent AED tagLocation corruption Sasha Levin
2021-03-02 11:59 ` [PATCH AUTOSEL 4.9 02/10] mmc: mxs-mmc: Fix a resource leak in an error handling path in 'mxs_mmc_probe()' Sasha Levin
2021-03-02 11:59 ` [PATCH AUTOSEL 4.9 03/10] mmc: mediatek: fix race condition between msdc_request_timeout and irq Sasha Levin
2021-03-02 11:59 ` [PATCH AUTOSEL 4.9 04/10] powerpc/perf: Record counter overflow always if SAMPLE_IP is unset Sasha Levin
2021-03-02 11:59 ` [PATCH AUTOSEL 4.9 05/10] sparc32: Limit memblock allocation to low memory Sasha Levin
2021-03-03 8:20 ` Andreas Larsson
2021-03-02 11:59 ` Sasha Levin [this message]
2021-03-02 11:59 ` [PATCH AUTOSEL 4.9 07/10] PCI: xgene-msi: Fix race in installing chained irq handler Sasha Levin
2021-03-02 11:59 ` [PATCH AUTOSEL 4.9 08/10] misc: eeprom_93xx46: Add quirk to support Microchip 93LC46B eeprom Sasha Levin
2021-03-02 11:59 ` [PATCH AUTOSEL 4.9 09/10] s390/smp: __smp_rescan_cpus() - move cpumask away from stack Sasha Levin
2021-03-02 11:59 ` [PATCH AUTOSEL 4.9 10/10] scsi: libiscsi: Fix iscsi_prep_scsi_cmd_pdu() error handling Sasha Levin
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