// SPDX-License-Identifier: LGPL-2.1/* * Copyright (C) 2009, 2010 Red Hat Inc, Steven Rostedt <srostedt@redhat.com> * */ #include "event-parse.h"#include "event-parse-local.h"#include "event-utils.h" /** * tep_get_event - returns the event with the given index * @tep: a handle to the tep_handle * @index: index of the requested event, in the range 0 .. nr_events * * This returns pointer to the element of the events array with the given index * If @tep is NULL, or @index is not in the range 0 .. nr_events, NULL is returned. */struct tep_event *tep_get_event(struct tep_handle *tep, int index){	if (tep && tep->events && index < tep->nr_events)		return tep->events[index]; 	return NULL;} /** * tep_get_first_event - returns the first event in the events array * @tep: a handle to the tep_handle * * This returns pointer to the first element of the events array * If @tep is NULL, NULL is returned. */struct tep_event *tep_get_first_event(struct tep_handle *tep){	return tep_get_event(tep, 0);} /** * tep_get_events_count - get the number of defined events * @tep: a handle to the tep_handle * * This returns number of elements in event array * If @tep is NULL, 0 is returned. */int tep_get_events_count(struct tep_handle *tep){	if (tep)		return tep->nr_events;	return 0;} /** * tep_set_flag - set event parser flag * @tep: a handle to the tep_handle * @flag: flag, or combination of flags to be set * can be any combination from enum tep_flag * * This sets a flag or combination of flags from enum tep_flag */void tep_set_flag(struct tep_handle *tep, int flag){	if (tep)		tep->flags |= flag;} /** * tep_clear_flag - clear event parser flag * @tep: a handle to the tep_handle * @flag: flag to be cleared * * This clears a tep flag */void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag){	if (tep)		tep->flags &= ~flag;} /** * tep_test_flag - check the state of event parser flag * @tep: a handle to the tep_handle * @flag: flag to be checked * * This returns the state of the requested tep flag. * Returns: true if the flag is set, false otherwise. */bool tep_test_flag(struct tep_handle *tep, enum tep_flag flag){	if (tep)		return tep->flags & flag;	return false;} unsigned short tep_data2host2(struct tep_handle *tep, unsigned short data){	unsigned short swap; 	if (!tep || tep->host_bigendian == tep->file_bigendian)		return data; 	swap = ((data & 0xffULL) << 8) |		((data & (0xffULL << 8)) >> 8); 	return swap;} unsigned int tep_data2host4(struct tep_handle *tep, unsigned int data){	unsigned int swap; 	if (!tep || tep->host_bigendian == tep->file_bigendian)		return data; 	swap = ((data & 0xffULL) << 24) |		((data & (0xffULL << 8)) << 8) |		((data & (0xffULL << 16)) >> 8) |		((data & (0xffULL << 24)) >> 24); 	return swap;} unsigned long longtep_data2host8(struct tep_handle *tep, unsigned long long data){	unsigned long long swap; 	if (!tep || tep->host_bigendian == tep->file_bigendian)		return data; 	swap = ((data & 0xffULL) << 56) |		((data & (0xffULL << 8)) << 40) |		((data & (0xffULL << 16)) << 24) |		((data & (0xffULL << 24)) << 8) |		((data & (0xffULL << 32)) >> 8) |		((data & (0xffULL << 40)) >> 24) |		((data & (0xffULL << 48)) >> 40) |		((data & (0xffULL << 56)) >> 56); 	return swap;} /** * tep_get_header_page_size - get size of the header page * @tep: a handle to the tep_handle * * This returns size of the header page * If @tep is NULL, 0 is returned. */int tep_get_header_page_size(struct tep_handle *tep){	if (tep)		return tep->header_page_size_size;	return 0;} /** * tep_get_header_timestamp_size - get size of the timestamp in the header page * @tep: a handle to the tep_handle * * This returns size of the timestamp in the header page * If @tep is NULL, 0 is returned. */int tep_get_header_timestamp_size(struct tep_handle *tep){	if (tep)		return tep->header_page_ts_size;	return 0;} /** * tep_get_cpus - get the number of CPUs * @tep: a handle to the tep_handle * * This returns the number of CPUs * If @tep is NULL, 0 is returned. */int tep_get_cpus(struct tep_handle *tep){	if (tep)		return tep->cpus;	return 0;} /** * tep_set_cpus - set the number of CPUs * @tep: a handle to the tep_handle * * This sets the number of CPUs */void tep_set_cpus(struct tep_handle *tep, int cpus){	if (tep)		tep->cpus = cpus;} /** * tep_get_long_size - get the size of a long integer on the traced machine * @tep: a handle to the tep_handle * * This returns the size of a long integer on the traced machine * If @tep is NULL, 0 is returned. */int tep_get_long_size(struct tep_handle *tep){	if (tep)		return tep->long_size;	return 0;} /** * tep_set_long_size - set the size of a long integer on the traced machine * @tep: a handle to the tep_handle * @size: size, in bytes, of a long integer * * This sets the size of a long integer on the traced machine */void tep_set_long_size(struct tep_handle *tep, int long_size){	if (tep)		tep->long_size = long_size;} /** * tep_get_page_size - get the size of a memory page on the traced machine * @tep: a handle to the tep_handle * * This returns the size of a memory page on the traced machine * If @tep is NULL, 0 is returned. */int tep_get_page_size(struct tep_handle *tep){	if (tep)		return tep->page_size;	return 0;} /** * tep_set_page_size - set the size of a memory page on the traced machine * @tep: a handle to the tep_handle * @_page_size: size of a memory page, in bytes * * This sets the size of a memory page on the traced machine */void tep_set_page_size(struct tep_handle *tep, int _page_size){	if (tep)		tep->page_size = _page_size;} /** * tep_is_file_bigendian - return the endian of the file * @tep: a handle to the tep_handle * * This returns true if the file is in big endian order * If @tep is NULL, false is returned. */bool tep_is_file_bigendian(struct tep_handle *tep){	if (tep)		return (tep->file_bigendian == TEP_BIG_ENDIAN);	return false;} /** * tep_set_file_bigendian - set if the file is in big endian order * @tep: a handle to the tep_handle * @endian: non zero, if the file is in big endian order * * This sets if the file is in big endian order */void tep_set_file_bigendian(struct tep_handle *tep, enum tep_endian endian){	if (tep)		tep->file_bigendian = endian;} /** * tep_is_local_bigendian - return the endian of the saved local machine * @tep: a handle to the tep_handle * * This returns true if the saved local machine in @tep is big endian. * If @tep is NULL, false is returned. */bool tep_is_local_bigendian(struct tep_handle *tep){	if (tep)		return (tep->host_bigendian == TEP_BIG_ENDIAN);	return 0;} /** * tep_set_local_bigendian - set the stored local machine endian order * @tep: a handle to the tep_handle * @endian: non zero, if the local host has big endian order * * This sets the endian order for the local machine. */void tep_set_local_bigendian(struct tep_handle *tep, enum tep_endian endian){	if (tep)		tep->host_bigendian = endian;} /** * tep_is_old_format - get if an old kernel is used * @tep: a handle to the tep_handle * * This returns true, if an old kernel is used to generate the tracing events or * false if a new kernel is used. Old kernels did not have header page info. * If @tep is NULL, false is returned. */bool tep_is_old_format(struct tep_handle *tep){	if (tep)		return tep->old_format;	return false;} /** * tep_set_test_filters - set a flag to test a filter string * @tep: a handle to the tep_handle * @test_filters: the new value of the test_filters flag * * This 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. */void tep_set_test_filters(struct tep_handle *tep, int test_filters){	if (tep)		tep->test_filters = test_filters;}