tep_print_printk(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | EXAMPLE | FILES | SEE ALSO | AUTHOR | REPORTING BUGS | LICENSE | RESOURCES | NOTES | COLOPHON

LIBTRACEEVENT(3)          libtraceevent Manual          LIBTRACEEVENT(3)

NAME         top

       tep_print_printk, tep_print_funcs, tep_set_test_filters,
       tep_plugin_print_options - Print libtraceevent internal
       information.

SYNOPSIS         top

       #include <event-parse.h>
       #include <trace-seq.h>

       void tep_print_printk(struct tep_handle *tep);
       void tep_print_funcs(struct tep_handle *tep);
       void tep_set_test_filters(struct tep_handle *tep, int test_filters);
       void tep_plugin_print_options(struct trace_seq *s);

DESCRIPTION         top

       The tep_print_printk() function prints the printk string formats
       that were stored for this tracing session. The tep argument is
       trace event parser context.

       The tep_print_funcs() function prints the stored function name to
       address mapping for this tracing session. The tep argument is
       trace event parser context.

       The tep_set_test_filters() function sets a flag to test a filter
       string. If this flag is set, when tep_filter_add_filter_str() API
       as called, it will print the filter string instead of adding it.
       The tep argument is trace event parser context. The test_filters
       argument is the test flag that will be set.

       The tep_plugin_print_options() function writes a list of the
       registered plugin options into s.

EXAMPLE         top

           #include <event-parse.h>
           #include <trace-seq.h>
           ...
           struct tep_handle *tep = tep_alloc();
           ...
                   tep_print_printk(tep);
           ...
                   tep_print_funcs(tep);
           ...
           struct tep_event_filter *filter = tep_filter_alloc(tep);
                   tep_set_test_filters(tep, 1);
                   tep_filter_add_filter_str(filter, "sched/sched_wakeup:target_cpu==1");
                   tep_set_test_filters(tep, 0);
                   tep_filter_free(filter);
           ...
           struct trace_seq seq;
           trace_seq_init(&seq);

                   tep_plugin_print_options(&s);
           ...

FILES         top

           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         top

       libtraceevent(3), trace-cmd(1)

AUTHOR         top

           Steven Rostedt <rostedt@goodmis.org[1]>, author of libtraceevent.
           Tzvetomir Stoyanov <tz.stoyanov@gmail.com[2]>, author of this man page.

REPORTING BUGS         top

       Report bugs to <linux-trace-devel@vger.kernel.org[3]>

LICENSE         top

       libtraceevent is Free Software licensed under the GNU LGPL 2.1

RESOURCES         top

       https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/ 

NOTES         top

        1. rostedt@goodmis.org
           mailto:rostedt@goodmis.org

        2. tz.stoyanov@gmail.com
           mailto:tz.stoyanov@gmail.com

        3. linux-trace-devel@vger.kernel.org
           mailto:linux-trace-devel@vger.kernel.org

COLOPHON         top

       This page is part of the libtraceevent (Linux kernel trace event
       library) project.  Information about the project can be found at
       ⟨https://www.trace-cmd.org/⟩.  If you have a bug report for this
       manual page, see ⟨https://www.trace-cmd.org/⟩.  This page was
       obtained from the project's upstream Git repository
       ⟨https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git⟩
       on 2024-06-14.  (At that time, the date of the most recent commit
       that was found in the repository was 2024-05-17.)  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for
       the page, or you have corrections or improvements to the
       information in this COLOPHON (which is not part of the original
       manual page), send a mail to man-pages@man7.org

libtraceevent 1.7.3            09/24/2023               LIBTRACEEVENT(3)