From patchwork Tue Nov 6 13:20:51 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tzvetomir Stoyanov X-Patchwork-Id: 10759661 Return-Path: Received: from mail-eopbgr710048.outbound.protection.outlook.com ([40.107.71.48]:16352 "EHLO NAM05-BY2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2388447AbeKFWqE (ORCPT ); Tue, 6 Nov 2018 17:46:04 -0500 From: Tzvetomir Stoyanov To: "rostedt@goodmis.org" CC: "linux-trace-devel@vger.kernel.org" Subject: [PATCH 2/7] tools/lib/traceevent: Implement libtraceevent man pages Date: Tue, 6 Nov 2018 13:20:51 +0000 Message-ID: <20181106132035.7692-3-tstoyanov@vmware.com> References: <20181106132035.7692-1-tstoyanov@vmware.com> In-Reply-To: <20181106132035.7692-1-tstoyanov@vmware.com> Content-Language: en-US MIME-Version: 1.0 Sender: linux-trace-devel-owner@vger.kernel.org List-ID: Content-Length: 2500 This patch implements a man page, which documents tep_get_cpus() and tep_set_cpus() libtraceevent APIs Signed-off-by: Tzvetomir Stoyanov --- .../Documentation/libtraceevent-cpus.txt | 78 +++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 tools/lib/traceevent/Documentation/libtraceevent-cpus.txt diff --git a/tools/lib/traceevent/Documentation/libtraceevent-cpus.txt b/tools/lib/traceevent/Documentation/libtraceevent-cpus.txt new file mode 100644 index 000000000000..f9ed0a02d653 --- /dev/null +++ b/tools/lib/traceevent/Documentation/libtraceevent-cpus.txt @@ -0,0 +1,78 @@ +libtraceevent(3) +================ + +NAME +---- +tep_get_cpus,tep_set_cpus - Get / set the numbers of CPUs, which have tracing +data recorded. + +SYNOPSIS +-------- +[verse] +-- +*#include * + +int *tep_get_cpus*(struct tep_handle pass:[*]_tep_); +void *tep_set_cpus*(struct tep_handle pass:[*]_tep_, int _cpus_); +-- + +DESCRIPTION +----------- +The _tep_get_cpus()_ functions gets the number of CPUs, which have tracing +data recorded. The _tep_ argument is trace event parser context. + +The _tep_set_cpus()_ functions sets the number of CPUs, which have tracing +data recorded. The _tep_ argument is trace event parser context. The _cpu_ +argument is the number of CPUs with tracing data. This information is saved +in the trace.dat file. + +RETURN VALUE +------------ +The _tep_get_cpus()_ functions returns the number of CPUs, which have tracing +data recorded. + +EXAMPLE +------- +[source,c] +-- +#include +... +struct tep_handle *tep = tep_alloc(); +... + tep_set_cpus(tep, 5); +... + printf("We have tracing data for %d CPUs", tep_get_cpus(tep)); +-- + +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* , author of *libtraceevent*. +*Tzvetomir Stoyanov* , author of this man page. +-- +REPORTING BUGS +-------------- +Report bugs to + +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