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From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org, linux-trace-devel@vger.kernel.org
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
	Ingo Molnar <mingo@kernel.org>, Jiri Olsa <jolsa@redhat.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Tzvetomir Stoyanov <tstoyanov@vmware.com>
Subject: [PATCH 14/27] tools/lib/traceevent: Man page for tep_read_number()
Date: Fri, 10 May 2019 15:56:20 -0400
Message-ID: <20190510200108.042164597@goodmis.org> (raw)
In-Reply-To: <20190510195606.537643615@goodmis.org>

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>

Create man page for tep_read_number() libtraceevent API.

Link: http://lore.kernel.org/linux-trace-devel/20190503091119.23399-14-tstoyanov@vmware.com

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---
 .../libtraceevent-endian_read.txt             | 78 +++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 tools/lib/traceevent/Documentation/libtraceevent-endian_read.txt

diff --git a/tools/lib/traceevent/Documentation/libtraceevent-endian_read.txt b/tools/lib/traceevent/Documentation/libtraceevent-endian_read.txt
new file mode 100644
index 000000000000..e64851b6e189
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-endian_read.txt
@@ -0,0 +1,78 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_read_number - Reads a number from raw data.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+unsigned long long *tep_read_number*(struct tep_handle pass:[*]_tep_, const void pass:[*]_ptr_, int _size_);
+--
+
+DESCRIPTION
+-----------
+The _tep_read_number()_ function reads an integer from raw data, taking into
+account the endianness of the raw data and the current host. The _tep_ argument
+is the trace event parser context. The _ptr_ is a pointer to the raw data, where
+the integer is, and the _size_ is the size of the integer.
+
+RETURN VALUE
+------------
+The _tep_read_number()_ function returns the integer in the byte order of
+the current host. In case of an error, 0 is returned.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+void process_record(struct tep_record *record)
+{
+	int offset = 24;
+	int data = tep_read_number(tep, record->data + offset, 4);
+
+	/* Read the 4 bytes at the offset 24 of data as an integer */
+}
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+	Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+	Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
-- 
2.20.1



  parent reply index

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-10 19:56 [PATCH 00/27] tools/lib/traceevent: Add man pages for most libtraceevent functions Steven Rostedt
2019-05-10 19:56 ` [PATCH 01/27] tools lib traceevent: Remove hard coded install paths from pkg-config file Steven Rostedt
2019-05-10 20:11   ` Steven Rostedt
2019-05-10 21:25     ` Arnaldo Carvalho de Melo
2019-05-14 15:05       ` Arnaldo Carvalho de Melo
2019-05-14 15:49         ` Steven Rostedt
2019-05-10 19:56 ` [PATCH 02/27] tools/lib/traceevent: Implement libtraceevent man pages Steven Rostedt
2019-05-10 19:56 ` [PATCH 03/27] tools/lib/traceevent: Add support for man pages with multiple names Steven Rostedt
2019-05-10 19:56 ` [PATCH 04/27] tools/lib/traceevent: libtraceevent man pages for tep_handler related APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 05/27] tools/lib/traceevent: Man page for header_page APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 06/27] tools/lib/traceevent: Man page for get/set cpus APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 07/27] tools/lib/traceevent: Man page for file endian APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 08/27] tools/lib/traceevent: Man page for host " Steven Rostedt
2019-05-10 19:56 ` [PATCH 09/27] tools/lib/traceevent: Man page for page size APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 10/27] tools/lib/traceevent: Man page for tep_strerror() Steven Rostedt
2019-05-10 19:56 ` [PATCH 11/27] tools/lib/traceevent: Man pages for event handler APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 12/27] tools/lib/traceevent: Man pages for function related libtraceevent APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 13/27] tools/lib/traceevent: Man pages for registering print function Steven Rostedt
2019-05-10 19:56 ` Steven Rostedt [this message]
2019-05-10 19:56 ` [PATCH 15/27] tools/lib/traceevent: Man pages for event find APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 16/27] tools/lib/traceevent: Man page for list events APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 17/27] tools/lib/traceevent: Man pages for libtraceevent event get APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 18/27] tools/lib/traceevent: Man pages find field APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 19/27] tools/lib/traceevent: Man pages get field value APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 20/27] tools/lib/traceevent: Man pages for print field APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 21/27] tools/lib/traceevent: Man page for tep_read_number_field() Steven Rostedt
2019-05-10 19:56 ` [PATCH 22/27] tools/lib/traceevent: Man pages for event fields APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 23/27] tools/lib/traceevent: Man pages for event filter APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 24/27] tools/lib/traceevent: Man pages for parse event APIs Steven Rostedt
2019-05-10 19:56 ` [PATCH 25/27] tools/lib/traceevent: Man page for tep_parse_header_page() Steven Rostedt
2019-05-10 19:56 ` [PATCH 26/27] tools/lib/traceevent: Man pages for APIs, used to extract common fields from a record Steven Rostedt
2019-05-10 19:56 ` [PATCH 27/27] tools/lib/traceevent: Man pages for trace sequences APIs Steven Rostedt

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