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Diffstat (limited to 'Documentation/libtraceevent-debug.txt')
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diff --git a/Documentation/libtraceevent-debug.txt b/Documentation/libtraceevent-debug.txt new file mode 100644 index 0000000..ff1d06d --- /dev/null +++ b/Documentation/libtraceevent-debug.txt @@ -0,0 +1,95 @@ +libtraceevent(3) +================ + +NAME +---- +tep_print_printk, tep_print_funcs, tep_set_test_filters, tep_plugin_print_options - +Print libtraceevent internal information. + +SYNOPSIS +-------- +[verse] +-- +*#include <event-parse.h>* +*#include <trace-seq.h>* + +void *tep_print_printk*(struct tep_handle pass:[*]tep); +void *tep_print_funcs*(struct tep_handle pass:[*]tep); +void *tep_set_test_filters*(struct tep_handle pass:[*]tep, int test_filters); +void *tep_plugin_print_options*(struct trace_seq pass:[*]s); +-- + +DESCRIPTION +----------- +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 +------- +[source,c] +-- +#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 +----- +[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/libs/libtrace/libtraceevent.git/ |