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([2a00:1370:8180:6b00:a1a8:4887:1af4:637a]) by smtp.gmail.com with ESMTPSA id t5-20020ac243a5000000b004db508326c0sm3138800lfl.90.2023.04.12.12.05.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Apr 2023 12:05:36 -0700 (PDT) From: Pavel Skripkin To: sjg@chromium.org, u-boot@lists.denx.de Cc: Pavel Skripkin Subject: [PATCH] docs: fix wrong proftool usage Date: Wed, 12 Apr 2023 22:05:31 +0300 Message-Id: <20230412190531.160574-1-paskripkin@gmail.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Mailman-Approved-At: Thu, 13 Apr 2023 16:56:35 +0200 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Guide shows incorrect usage of proftool, which is confusing. If proftool is used w/o '-o' argument it complains like following $ ./sandbox/tools/proftool -m sandbox/System.map -t trace dump-ftrace > trace.dat Must provide trace data, System.map file and output file Usage: proftool [-cmtv] s/>/-o/ fixes it and proftool outputs decoded data to trace.dat Signed-off-by: Pavel Skripkin --- doc/develop/trace.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/doc/develop/trace.rst b/doc/develop/trace.rst index 8425d843e9..9bbe1345d2 100644 --- a/doc/develop/trace.rst +++ b/doc/develop/trace.rst @@ -100,7 +100,7 @@ Then run proftool to convert the trace information to ftrace format .. code-block:: console - $ ./sandbox/tools/proftool -m sandbox/System.map -t trace dump-ftrace >trace.dat + $ ./sandbox/tools/proftool -m sandbox/System.map -t trace dump-ftrace -o trace.dat Finally run kernelshark to display it (note it only works with `.dat` files!): -- 2.39.2