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| author | Tzvetomir Stoyanov <tstoyanov@vmware.com> | 2019-05-10 22:56:12 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-05-15 22:36:47 +0300 |
| commit | ba28fabe43c3a13bbc6e48f78fdf609dcc5e114b (patch) | |
| tree | a1591de7d936841b0a22a933d4b7f90a95cecc75 /tools/lib/traceevent | |
| parent | 3d2626bd1f15711711b575463befbe137ac1adc6 (diff) | |
| download | linux-ba28fabe43c3a13bbc6e48f78fdf609dcc5e114b.tar.xz | |
tools lib traceevent: Man page for get/set cpus APIs
Create man pages for libtraceevent APIs:
tep_get_cpus(),
tep_set_cpus()
Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: linux-trace-devel@vger.kernel.org
Link: http://lore.kernel.org/linux-trace-devel/20190503091119.23399-6-tstoyanov@vmware.com
Link: http://lkml.kernel.org/r/20190510200106.742948683@goodmis.org
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/traceevent')
| -rw-r--r-- | tools/lib/traceevent/Documentation/libtraceevent-cpus.txt | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-cpus.txt b/tools/lib/traceevent/Documentation/libtraceevent-cpus.txt new file mode 100644 index 000000000000..5ad70e43b752 --- /dev/null +++ b/tools/lib/traceevent/Documentation/libtraceevent-cpus.txt @@ -0,0 +1,77 @@ +libtraceevent(3) +================ + +NAME +---- +tep_get_cpus, tep_set_cpus - Get / set the number of CPUs, which have a tracing +buffer representing it. Note, the buffer may be empty. + +SYNOPSIS +-------- +[verse] +-- +*#include <event-parse.h>* + +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()_ function gets the number of CPUs, which have a tracing +buffer representing it. The _tep_ argument is trace event parser context. + +The _tep_set_cpus()_ function sets the number of CPUs, which have a tracing +buffer representing it. The _tep_ argument is trace event parser context. +The _cpu_ argument is the number of CPUs with tracing data. + +RETURN VALUE +------------ +The _tep_get_cpus()_ functions returns the number of CPUs, which have tracing +data recorded. + +EXAMPLE +------- +[source,c] +-- +#include <event-parse.h> +... +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* <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 |