linux-kernel - [PATCH 2/2] Documentation/rtla: Document --stack-format option

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Message-ID: <20260119115222.744150-2-tglozar@redhat.com>
Date: Mon, 19 Jan 2026 12:52:22 +0100
From: Tomas Glozar <tglozar@...hat.com>
To: Steven Rostedt <rostedt@...dmis.org>,
	Tomas Glozar <tglozar@...hat.com>
Cc: Costa Shulyupin <costa.shul@...hat.com>,
	Crystal Wood <crwood@...hat.com>,
	John Kacur <jkacur@...hat.com>,
	Luis Goncalves <lgoncalv@...hat.com>,
	Wander Lairson Costa <wander@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux Trace Kernel <linux-trace-kernel@...r.kernel.org>
Subject: [PATCH 2/2] Documentation/rtla: Document --stack-format option

Add documentation for --stack-format option of rtla-timerlat into its
common options.

Signed-off-by: Tomas Glozar <tglozar@...hat.com>
---
 Documentation/tools/rtla/common_timerlat_options.txt | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/tools/rtla/common_timerlat_options.txt b/Documentation/tools/rtla/common_timerlat_options.txt
index 07a285fcf7cf..ab159b2cbfe7 100644
--- a/Documentation/tools/rtla/common_timerlat_options.txt
+++ b/Documentation/tools/rtla/common_timerlat_options.txt
@@ -83,3 +83,15 @@
 
         **Note**: BPF actions require BPF support to be available. If BPF is not available
         or disabled, the tool falls back to tracefs mode and BPF actions are not supported.
+
+**--stack-format** *format*
+
+        Adjust the format of the stack trace printed during auto-analysis.
+
+        The supported values for *format* are:
+
+        * **truncate**    Print the stack trace up to the first unknown address (default).
+        * **skip**        Skip unknown addresses.
+        * **full**        Print the entire stack trace, including unknown addresses.
+
+        For unknown addresses, the raw pointer is printed.
-- 
2.52.0