[PATCH v9 01/11] arm64: Select STACKTRACE in arch/arm64/Kconfig

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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 v9 01/11] arm64: Select STACKTRACE in arch/arm64/Kconfig
Date: Thu, 14 Oct 2021 21:34:03 -0500	[thread overview]
Message-ID: <20211015023413.16614-2-madvenka@linux.microsoft.com> (raw)
In-Reply-To: <20211015023413.16614-1-madvenka@linux.microsoft.com>

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

Currently, there are multiple functions in ARM64 code that walk the
stack using start_backtrace() and unwind_frame() or start_backtrace()
and walk_stackframe(). They should all be converted to use
arch_stack_walk(). This makes maintenance easier.

To do that, arch_stack_walk() must always be defined. arch_stack_walk()
is within #ifdef CONFIG_STACKTRACE. So, select STACKTRACE in
arch/arm64/Kconfig.

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 fdcd54d39c1e..bfb0ce60d820 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -35,6 +35,7 @@ config ARM64
 	select ARCH_HAS_SET_DIRECT_MAP
 	select ARCH_HAS_SET_MEMORY
 	select ARCH_STACKWALK
+	select STACKTRACE
 	select ARCH_HAS_STRICT_KERNEL_RWX
 	select ARCH_HAS_STRICT_MODULE_RWX
 	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
-- 
2.25.1

WARNING: multiple messages have this Message-ID (diff)

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 v9 01/11] arm64: Select STACKTRACE in arch/arm64/Kconfig
Date: Thu, 14 Oct 2021 21:34:03 -0500	[thread overview]
Message-ID: <20211015023413.16614-2-madvenka@linux.microsoft.com> (raw)
In-Reply-To: <20211015023413.16614-1-madvenka@linux.microsoft.com>

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

Currently, there are multiple functions in ARM64 code that walk the
stack using start_backtrace() and unwind_frame() or start_backtrace()
and walk_stackframe(). They should all be converted to use
arch_stack_walk(). This makes maintenance easier.

To do that, arch_stack_walk() must always be defined. arch_stack_walk()
is within #ifdef CONFIG_STACKTRACE. So, select STACKTRACE in
arch/arm64/Kconfig.

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 fdcd54d39c1e..bfb0ce60d820 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -35,6 +35,7 @@ config ARM64
 	select ARCH_HAS_SET_DIRECT_MAP
 	select ARCH_HAS_SET_MEMORY
 	select ARCH_STACKWALK
+	select STACKTRACE
 	select ARCH_HAS_STRICT_KERNEL_RWX
 	select ARCH_HAS_STRICT_MODULE_RWX
 	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
-- 
2.25.1


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next prev parent reply	other threads:[~2021-10-15  2:34 UTC|newest]

Thread overview: 104+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <c05ce30dcc9be1bd6b5e24a2ca8fe1d66246980b>
2021-10-15  2:34 ` [PATCH v9 00/11] arm64: Reorganize the unwinder and implement stack trace reliability checks madvenka
2021-10-15  2:34   ` madvenka
2021-10-15  2:34   ` madvenka [this message]
2021-10-15  2:34     ` [PATCH v9 01/11] arm64: Select STACKTRACE in arch/arm64/Kconfig madvenka
2021-10-15  2:34   ` [PATCH v9 10/11] arm64: Introduce stack trace reliability checks in the unwinder madvenka
2021-10-15  2:34     ` madvenka
2021-10-15  2:34   ` [PATCH v9 11/11] arm64: Create a list of SYM_CODE functions, check return PC against list madvenka
2021-10-15  2:34     ` madvenka
2021-10-15  2:34   ` [PATCH v9 02/11] arm64: Make perf_callchain_kernel() use arch_stack_walk() madvenka
2021-10-15  2:34     ` madvenka
2021-10-15  2:34   ` [PATCH v9 03/11] arm64: Make get_wchan() " madvenka
2021-10-15  2:34     ` madvenka
2021-10-15  2:34   ` [PATCH v9 04/11] arm64: Make return_address() " madvenka
2021-10-15  2:34     ` madvenka
2021-10-15  2:34   ` [PATCH v9 05/11] arm64: Make dump_stacktrace() " madvenka
2021-10-15  2:34     ` madvenka
2021-10-15  2:34   ` [PATCH v9 06/11] arm64: Make profile_pc() " madvenka
2021-10-15  2:34     ` madvenka
2021-10-15  2:34   ` [PATCH v9 07/11] arm64: Call stack_backtrace() only from within walk_stackframe() madvenka
2021-10-15  2:34     ` madvenka
2021-10-15  2:34   ` [PATCH v9 08/11] arm64: Rename unwinder functions, prevent them from being traced and kprobed madvenka
2021-10-15  2:34     ` madvenka
2021-10-15  2:34   ` [PATCH v9 09/11] arm64: Make the unwind loop in unwind() similar to other architectures madvenka
2021-10-15  2:34     ` madvenka
2021-10-15  2:53   ` [PATCH v9 00/11] arm64: Reorganize the unwinder and implement stack trace reliability checks Madhavan T. Venkataraman
2021-10-15  2:53     ` Madhavan T. Venkataraman
2021-10-15  2:58 ` [PATCH v10 " madvenka
2021-10-15  2:58   ` madvenka
2021-10-15  2:58   ` [PATCH v10 01/11] arm64: Select STACKTRACE in arch/arm64/Kconfig madvenka
2021-10-15  2:58     ` madvenka
2021-10-15 18:28     ` Mark Brown
2021-10-15 18:28       ` Mark Brown
2021-10-21 12:28       ` Madhavan T. Venkataraman
2021-10-21 12:28         ` Madhavan T. Venkataraman
2021-10-22 18:02     ` Mark Rutland
2021-10-22 18:02       ` Mark Rutland
2021-11-12 17:44       ` Mark Rutland
2021-11-12 17:44         ` Mark Rutland
2021-11-14 16:15         ` Madhavan T. Venkataraman
2021-11-14 16:15           ` Madhavan T. Venkataraman
2021-10-15  2:58   ` [PATCH v10 02/11] arm64: Make perf_callchain_kernel() use arch_stack_walk() madvenka
2021-10-15  2:58     ` madvenka
2021-10-20 14:59     ` Mark Brown
2021-10-20 14:59       ` Mark Brown
2021-10-21 12:28       ` Madhavan T. Venkataraman
2021-10-21 12:28         ` Madhavan T. Venkataraman
2021-10-22 18:11     ` Mark Rutland
2021-10-22 18:11       ` Mark Rutland
2021-10-23 12:49       ` Madhavan T. Venkataraman
2021-10-23 12:49         ` Madhavan T. Venkataraman
2021-10-15  2:58   ` [PATCH v10 03/11] arm64: Make get_wchan() " madvenka
2021-10-15  2:58     ` madvenka
2021-10-20 16:10     ` Mark Brown
2021-10-20 16:10       ` Mark Brown
2021-10-21 12:30       ` Madhavan T. Venkataraman
2021-10-21 12:30         ` Madhavan T. Venkataraman
2021-10-15  2:58   ` [PATCH v10 04/11] arm64: Make return_address() " madvenka
2021-10-15  2:58     ` madvenka
2021-10-20 15:03     ` Mark Brown
2021-10-20 15:03       ` Mark Brown
2021-10-21 12:29       ` Madhavan T. Venkataraman
2021-10-21 12:29         ` Madhavan T. Venkataraman
2021-10-22 18:51     ` Mark Rutland
2021-10-22 18:51       ` Mark Rutland
2021-10-23 12:51       ` Madhavan T. Venkataraman
2021-10-23 12:51         ` Madhavan T. Venkataraman
2021-10-15  2:58   ` [PATCH v10 05/11] arm64: Make dump_stacktrace() " madvenka
2021-10-15  2:58     ` madvenka
2021-10-25 16:49     ` Mark Rutland
2021-10-25 16:49       ` Mark Rutland
2021-10-26 12:05       ` Mark Rutland
2021-10-26 12:05         ` Mark Rutland
2021-10-27 16:09         ` Madhavan T. Venkataraman
2021-10-27 16:09           ` Madhavan T. Venkataraman
2021-10-15  2:58   ` [PATCH v10 06/11] arm64: Make profile_pc() " madvenka
2021-10-15  2:58     ` madvenka
2021-10-25  2:18     ` nobuta.keiya
2021-10-25  2:18       ` nobuta.keiya
2021-10-27 16:10       ` Madhavan T. Venkataraman
2021-10-27 16:10         ` Madhavan T. Venkataraman
2021-10-27 13:32     ` Mark Rutland
2021-10-27 13:32       ` Mark Rutland
2021-10-27 16:15       ` Madhavan T. Venkataraman
2021-10-27 16:15         ` Madhavan T. Venkataraman
2021-10-15  2:58   ` [PATCH v10 07/11] arm64: Call stack_backtrace() only from within walk_stackframe() madvenka
2021-10-15  2:58     ` madvenka
2021-10-15  2:58   ` [PATCH v10 08/11] arm64: Rename unwinder functions, prevent them from being traced and kprobed madvenka
2021-10-15  2:58     ` madvenka
2021-10-27 17:53     ` Mark Rutland
2021-10-27 17:53       ` Mark Rutland
2021-10-27 20:07       ` Madhavan T. Venkataraman
2021-10-27 20:07         ` Madhavan T. Venkataraman
2021-10-15  2:58   ` [PATCH v10 09/11] arm64: Make the unwind loop in unwind() similar to other architectures madvenka
2021-10-15  2:58     ` madvenka
2021-10-15  2:58   ` [PATCH v10 10/11] arm64: Introduce stack trace reliability checks in the unwinder madvenka
2021-10-15  2:58     ` madvenka
2021-11-04 12:39     ` nobuta.keiya
2021-11-04 12:39       ` nobuta.keiya
2021-11-10  3:13       ` Madhavan T. Venkataraman
2021-11-10  3:13         ` Madhavan T. Venkataraman
2021-10-15  2:58   ` [PATCH v10 11/11] arm64: Create a list of SYM_CODE functions, check return PC against list madvenka
2021-10-15  2:58     ` madvenka
2021-10-15 17:00   ` [PATCH v10 00/11] arm64: Reorganize the unwinder and implement stack trace reliability checks Madhavan T. Venkataraman
2021-10-15 17:00     ` Madhavan T. Venkataraman

find likely ancestor, descendant, or conflicting patches for this message:
( dfblob:fdcd54d39c1 dfblob:bfb0ce60d82 dfblob:fdcd54d39c1
dfblob:bfb0ce60d82 )
 OR (
bs:"[PATCH v9 01/11] arm64: Select STACKTRACE in arch/arm64/Kconfig" )
	(help)

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