[v12,10/10] arm64: Select HAVE_RELIABLE_STACKTRACE

Message ID	20220103165212.9303-11-madvenka@linux.microsoft.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org> From: madvenka@linux.microsoft.com To: mark.rutland@arm.com, broonie@kernel.org, jpoimboe@redhat.com, ardb@kernel.org, nobuta.keiya@fujitsu.com, sjitindarsingh@gmail.com, catalin.marinas@arm.com, will@kernel.org, jmorris@namei.org, linux-arm-kernel@lists.infradead.org, live-patching@vger.kernel.org, linux-kernel@vger.kernel.org, madvenka@linux.microsoft.com Subject: [PATCH v12 10/10] arm64: Select HAVE_RELIABLE_STACKTRACE Date: Mon, 3 Jan 2022 10:52:12 -0600 Message-Id: <20220103165212.9303-11-madvenka@linux.microsoft.com> In-Reply-To: <20220103165212.9303-1-madvenka@linux.microsoft.com> References: <0d0eb36f348fb5a6af6eb592c0525f6e94007328> <20220103165212.9303-1-madvenka@linux.microsoft.com> MIME-Version: 1.0 Precedence: list Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org
Series	arm64: Reorganize the unwinder and implement stack trace reliability checks \| expand [v12,00/10] arm64: Reorganize the unwinder and implement stack trace reliability checks [v12,01/10] arm64: Remove NULL task check from unwind_frame() [v12,02/10] arm64: Rename unwinder functions [v12,03/10] arm64: Rename stackframe to unwind_state [v12,04/10] arm64: Split unwind_init() [v12,05/10] arm64: Copy unwind arguments to unwind_state [v12,06/10] arm64: Make the unwind loop in unwind() similar to other architectures [v12,07/10] arm64: Introduce stack trace reliability checks in the unwinder [v12,08/10] arm64: Create a list of SYM_CODE functions, check return PC against list [v12,09/10] arm64: Introduce arch_stack_walk_reliable() [v12,10/10] arm64: Select HAVE_RELIABLE_STACKTRACE

Message ID

20220103165212.9303-11-madvenka@linux.microsoft.com (mailing list archive)

State

New, archived

Headers

From: madvenka@linux.microsoft.com
To: mark.rutland@arm.com, broonie@kernel.org, jpoimboe@redhat.com,
 ardb@kernel.org, nobuta.keiya@fujitsu.com, sjitindarsingh@gmail.com,
 catalin.marinas@arm.com, will@kernel.org, jmorris@namei.org,
 linux-arm-kernel@lists.infradead.org, live-patching@vger.kernel.org,
 linux-kernel@vger.kernel.org, madvenka@linux.microsoft.com
Subject: [PATCH v12 10/10] arm64: Select HAVE_RELIABLE_STACKTRACE
Date: Mon,  3 Jan 2022 10:52:12 -0600
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Series

arm64: Reorganize the unwinder and implement stack trace reliability checks | expand

Commit Message

Madhavan T. Venkataraman Jan. 3, 2022, 4:52 p.m. UTC

From: "Madhavan T. Venkataraman" <madvenka@linux.microsoft.com>

Select HAVE_RELIABLE_STACKTRACE in arm64/Kconfig to allow
arch_stack_walk_reliable() to be used.

Note that this is conditional upon STACK_VALIDATION which will be added
when frame pointer validation is implemented (say via objtool).

Signed-off-by: Madhavan T. Venkataraman <madvenka@linux.microsoft.com>
---
 arch/arm64/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c4207cf9bb17..4f6312784650 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -222,6 +222,7 @@  config ARM64
 	select THREAD_INFO_IN_TASK
 	select HAVE_ARCH_USERFAULTFD_MINOR if USERFAULTFD
 	select TRACE_IRQFLAGS_SUPPORT
+	select HAVE_RELIABLE_STACKTRACE if FRAME_POINTER && STACK_VALIDATION
 	help
 	  ARM 64-bit (AArch64) Linux support.

[v12,10/10] arm64: Select HAVE_RELIABLE_STACKTRACE

Commit Message

Patch