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| author | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | 2023-07-07 05:01:59 +0000 |
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| committer | Android Build Coastguard Worker <android-build-coastguard-worker@google.com> | 2023-07-07 05:01:59 +0000 |
| commit | 478a8642c332046c1059d752fa66630eb9a13007 (patch) | |
| tree | 963ff30204aa75d49afd4ab80365ce5ab54744b7 /Documentation/libtracecmd/libtracecmd-log.txt | |
| parent | 57b8940af53bceb02dcbe41640d2d9e4de3c3210 (diff) | |
| parent | 9ae8a3b36dc387f23a6f4b4a9d1f71c8fb4415e5 (diff) | |
| download | trace-cmd-478a8642c332046c1059d752fa66630eb9a13007.tar.gz | |
Snap for 10453563 from 9ae8a3b36dc387f23a6f4b4a9d1f71c8fb4415e5 to mainline-extservices-releaseaml_ext_341716000aml_ext_341620040aml_ext_341518010aml_ext_341414010aml_ext_341317010aml_ext_341131030aml_ext_341027030android14-mainline-extservices-release
Change-Id: Ie838837a74e185aff515f1659c5b9be1e602d347
Diffstat (limited to 'Documentation/libtracecmd/libtracecmd-log.txt')
| -rw-r--r-- | Documentation/libtracecmd/libtracecmd-log.txt | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/Documentation/libtracecmd/libtracecmd-log.txt b/Documentation/libtracecmd/libtracecmd-log.txt new file mode 100644 index 00000000..de5c2776 --- /dev/null +++ b/Documentation/libtracecmd/libtracecmd-log.txt @@ -0,0 +1,78 @@ +libtracecmd(3) +============= + +NAME +---- +tracecmd_set_loglevel - Set log level of the library + +SYNOPSIS +-------- +[verse] +-- +*#include <trace-cmd.h>* + +int *tracecmd_set_loglevel*(enum tep_loglevel _level_); +-- + +DESCRIPTION +----------- +The _tracecmd_set_loglevel()_ function sets the level of the library logs that will be printed on +the console. See _libtraceevent(3)_ for detailed desciription of the log levels. Setting the log +level to specific value means that logs from the previous levels will be printed too. For example +_TEP_LOG_WARNING_ will print any logs with severity _TEP_LOG_WARNING_, _TEP_LOG_ERROR_ and +_TEP_LOG_CRITICAL_. The default log level is _TEP_LOG_CRITICAL_. When a new level is set, it is +also propagated to the libtracefs and libtraceevent. + +EXAMPLE +------- +[source,c] +-- +#include <trace-cmd.h> +... +tracecmd_set_loglevel(TEP_LOG_ALL); +... +/* call libtracecmd, libtracefs or libtraceevent APIs and observe any logs they produce */ +... +tracecmd_set_loglevel(TEP_LOG_CRITICAL); +-- + +FILES +----- +[verse] +-- +*trace-cmd.h* + Header file to include in order to have access to the library APIs. +*-ltracecmd* + Linker switch to add when building a program that uses the library. +-- + +SEE ALSO +-------- +_libtracefs(3)_, +_libtraceevent(3)_, +_trace-cmd(1)_ +_trace-cmd.dat(5)_ + +AUTHOR +------ +[verse] +-- +*Steven Rostedt* <rostedt@goodmis.org> +*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com> +-- +REPORTING BUGS +-------------- +Report bugs to <linux-trace-devel@vger.kernel.org> + +LICENSE +------- +libtracecmd is Free Software licensed under the GNU LGPL 2.1 + +RESOURCES +--------- +https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git/ + +COPYING +------- +Copyright \(C) 2021 VMware, Inc. Free use of this software is granted under +the terms of the GNU Public License (GPL). |