perf-eh_elf/util/evlist.h

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Merge tag 'afs-fixes-20180514' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs Pull AFS fixes from David Howells: "Here's a set of patches that fix a number of bugs in the in-kernel AFS client, including: - Fix directory locking to not use individual page locks for directory reading/scanning but rather to use a semaphore on the afs_vnode struct as the directory contents must be read in a single blob and data from different reads must not be mixed as the entire contents may be shuffled about between reads. - Fix address list parsing to handle port specifiers correctly. - Only give up callback records on a server if we actually talked to that server (we might not be able to access a server). - Fix some callback handling bugs, including refcounting, whole-volume callbacks and when callbacks actually get broken in response to a CB.CallBack op. - Fix some server/address rotation bugs, including giving up if we can't probe a server; giving up if a server says it doesn't have a volume, but there are more servers to try. - Fix the decoding of fetched statuses to be OpenAFS compatible. - Fix the handling of server lookups in Cache Manager ops (such as CB.InitCallBackState3) to use a UUID if possible and to handle no server being found. - Fix a bug in server lookup where not all addresses are compared. - Fix the non-encryption of calls that prevents some servers from being accessed (this also requires an AF_RXRPC patch that has already gone in through the net tree). There's also a patch that adds tracepoints to log Cache Manager ops that don't find a matching server, either by UUID or by address" * tag 'afs-fixes-20180514' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: afs: Fix the non-encryption of calls afs: Fix CB.CallBack handling afs: Fix whole-volume callback handling afs: Fix afs_find_server search loop afs: Fix the handling of an unfound server in CM operations afs: Add a tracepoint to record callbacks from unlisted servers afs: Fix the handling of CB.InitCallBackState3 to find the server by UUID afs: Fix VNOVOL handling in address rotation afs: Fix AFSFetchStatus decoder to provide OpenAFS compatibility afs: Fix server rotation's handling of fileserver probe failure afs: Fix refcounting in callback registration afs: Fix giving up callbacks on server destruction afs: Fix address list parsing afs: Fix directory page locking
2018-05-15 19:48:36 +02:00
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_EVLIST_H
#define __PERF_EVLIST_H 1
#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/refcount.h>
#include <linux/list.h>
#include <api/fd/array.h>
#include <stdio.h>
#include "../perf.h"
#include "event.h"
#include "evsel.h"
#include "mmap.h"
#include "util.h"
#include <signal.h>
#include <unistd.h>
struct pollfd;
struct thread_map;
struct cpu_map;
struct record_opts;
#define PERF_EVLIST__HLIST_BITS 8
#define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
struct perf_evlist {
struct list_head entries;
struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
int nr_entries;
int nr_groups;
int nr_mmaps;
bool enabled;
bool has_user_cpus;
size_t mmap_len;
int id_pos;
int is_pos;
u64 combined_sample_type;
enum bkw_mmap_state bkw_mmap_state;
struct {
int cork_fd;
pid_t pid;
} workload;
struct fdarray pollfd;
struct perf_mmap *mmap;
struct perf_mmap *overwrite_mmap;
struct thread_map *threads;
struct cpu_map *cpus;
struct perf_evsel *selected;
struct events_stats stats;
struct perf_env *env;
u64 first_sample_time;
u64 last_sample_time;
};
struct perf_evsel_str_handler {
const char *name;
void *handler;
};
struct perf_evlist *perf_evlist__new(void);
struct perf_evlist *perf_evlist__new_default(void);
struct perf_evlist *perf_evlist__new_dummy(void);
void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
struct thread_map *threads);
void perf_evlist__exit(struct perf_evlist *evlist);
void perf_evlist__delete(struct perf_evlist *evlist);
void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
void perf_evlist__remove(struct perf_evlist *evlist, struct perf_evsel *evsel);
int __perf_evlist__add_default(struct perf_evlist *evlist, bool precise);
static inline int perf_evlist__add_default(struct perf_evlist *evlist)
{
return __perf_evlist__add_default(evlist, true);
}
int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
struct perf_event_attr *attrs, size_t nr_attrs);
#define perf_evlist__add_default_attrs(evlist, array) \
__perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
int perf_evlist__add_dummy(struct perf_evlist *evlist);
int perf_evlist__add_newtp(struct perf_evlist *evlist,
const char *sys, const char *name, void *handler);
void __perf_evlist__set_sample_bit(struct perf_evlist *evlist,
enum perf_event_sample_format bit);
void __perf_evlist__reset_sample_bit(struct perf_evlist *evlist,
enum perf_event_sample_format bit);
#define perf_evlist__set_sample_bit(evlist, bit) \
__perf_evlist__set_sample_bit(evlist, PERF_SAMPLE_##bit)
#define perf_evlist__reset_sample_bit(evlist, bit) \
__perf_evlist__reset_sample_bit(evlist, PERF_SAMPLE_##bit)
int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter);
int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid);
int perf_evlist__set_filter_pids(struct perf_evlist *evlist, size_t npids, pid_t *pids);
struct perf_evsel *
perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);
struct perf_evsel *
perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
const char *name);
void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
int cpu, int thread, u64 id);
int perf_evlist__id_add_fd(struct perf_evlist *evlist,
struct perf_evsel *evsel,
int cpu, int thread, int fd);
int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mask);
int perf_evlist__poll(struct perf_evlist *evlist, int timeout);
struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
struct perf_evsel *perf_evlist__id2evsel_strict(struct perf_evlist *evlist,
u64 id);
struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id);
void perf_evlist__toggle_bkw_mmap(struct perf_evlist *evlist, enum bkw_mmap_state state);
void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx);
int perf_evlist__open(struct perf_evlist *evlist);
void perf_evlist__close(struct perf_evlist *evlist);
struct callchain_param;
void perf_evlist__set_id_pos(struct perf_evlist *evlist);
bool perf_can_sample_identifier(void);
bool perf_can_record_switch_events(void);
bool perf_can_record_cpu_wide(void);
void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts,
struct callchain_param *callchain);
int record_opts__config(struct record_opts *opts);
int perf_evlist__prepare_workload(struct perf_evlist *evlist,
struct target *target,
const char *argv[], bool pipe_output,
void (*exec_error)(int signo, siginfo_t *info,
void *ucontext));
int perf_evlist__start_workload(struct perf_evlist *evlist);
struct option;
int __perf_evlist__parse_mmap_pages(unsigned int *mmap_pages, const char *str);
int perf_evlist__parse_mmap_pages(const struct option *opt,
const char *str,
int unset);
unsigned long perf_event_mlock_kb_in_pages(void);
int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages,
unsigned int auxtrace_pages,
bool auxtrace_overwrite);
int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages);
void perf_evlist__munmap(struct perf_evlist *evlist);
size_t perf_evlist__mmap_size(unsigned long pages);
void perf_evlist__disable(struct perf_evlist *evlist);
void perf_evlist__enable(struct perf_evlist *evlist);
void perf_evlist__toggle_enable(struct perf_evlist *evlist);
int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
struct perf_evsel *evsel, int idx);
void perf_evlist__set_selected(struct perf_evlist *evlist,
struct perf_evsel *evsel);
void perf_evlist__set_maps(struct perf_evlist *evlist, struct cpu_map *cpus,
struct thread_map *threads);
int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target);
int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel);
void __perf_evlist__set_leader(struct list_head *list);
void perf_evlist__set_leader(struct perf_evlist *evlist);
u64 perf_evlist__read_format(struct perf_evlist *evlist);
u64 __perf_evlist__combined_sample_type(struct perf_evlist *evlist);
u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist);
u64 perf_evlist__combined_branch_type(struct perf_evlist *evlist);
bool perf_evlist__sample_id_all(struct perf_evlist *evlist);
u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist);
int perf_evlist__parse_sample(struct perf_evlist *evlist, union perf_event *event,
struct perf_sample *sample);
int perf_evlist__parse_sample_timestamp(struct perf_evlist *evlist,
union perf_event *event,
u64 *timestamp);
bool perf_evlist__valid_sample_type(struct perf_evlist *evlist);
bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist);
bool perf_evlist__valid_read_format(struct perf_evlist *evlist);
void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
struct list_head *list);
static inline bool perf_evlist__empty(struct perf_evlist *evlist)
{
return list_empty(&evlist->entries);
}
static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
{
return list_entry(evlist->entries.next, struct perf_evsel, node);
}
static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
{
return list_entry(evlist->entries.prev, struct perf_evsel, node);
}
size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
int perf_evlist__strerror_open(struct perf_evlist *evlist, int err, char *buf, size_t size);
int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, size_t size);
bool perf_evlist__can_select_event(struct perf_evlist *evlist, const char *str);
void perf_evlist__to_front(struct perf_evlist *evlist,
struct perf_evsel *move_evsel);
/**
* __evlist__for_each_entry - iterate thru all the evsels
* @list: list_head instance to iterate
* @evsel: struct evsel iterator
*/
#define __evlist__for_each_entry(list, evsel) \
list_for_each_entry(evsel, list, node)
/**
* evlist__for_each_entry - iterate thru all the evsels
* @evlist: evlist instance to iterate
* @evsel: struct evsel iterator
*/
#define evlist__for_each_entry(evlist, evsel) \
__evlist__for_each_entry(&(evlist)->entries, evsel)
/**
* __evlist__for_each_entry_continue - continue iteration thru all the evsels
* @list: list_head instance to iterate
* @evsel: struct evsel iterator
*/
#define __evlist__for_each_entry_continue(list, evsel) \
list_for_each_entry_continue(evsel, list, node)
/**
* evlist__for_each_entry_continue - continue iteration thru all the evsels
* @evlist: evlist instance to iterate
* @evsel: struct evsel iterator
*/
#define evlist__for_each_entry_continue(evlist, evsel) \
__evlist__for_each_entry_continue(&(evlist)->entries, evsel)
/**
* __evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
* @list: list_head instance to iterate
* @evsel: struct evsel iterator
*/
#define __evlist__for_each_entry_reverse(list, evsel) \
list_for_each_entry_reverse(evsel, list, node)
/**
* evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
* @evlist: evlist instance to iterate
* @evsel: struct evsel iterator
*/
#define evlist__for_each_entry_reverse(evlist, evsel) \
__evlist__for_each_entry_reverse(&(evlist)->entries, evsel)
/**
* __evlist__for_each_entry_safe - safely iterate thru all the evsels
* @list: list_head instance to iterate
* @tmp: struct evsel temp iterator
* @evsel: struct evsel iterator
*/
#define __evlist__for_each_entry_safe(list, tmp, evsel) \
list_for_each_entry_safe(evsel, tmp, list, node)
/**
* evlist__for_each_entry_safe - safely iterate thru all the evsels
* @evlist: evlist instance to iterate
* @evsel: struct evsel iterator
* @tmp: struct evsel temp iterator
*/
#define evlist__for_each_entry_safe(evlist, tmp, evsel) \
__evlist__for_each_entry_safe(&(evlist)->entries, tmp, evsel)
void perf_evlist__set_tracking_event(struct perf_evlist *evlist,
struct perf_evsel *tracking_evsel);
void perf_event_attr__set_max_precise_ip(struct perf_event_attr *attr);
struct perf_evsel *
perf_evlist__find_evsel_by_str(struct perf_evlist *evlist, const char *str);
struct perf_evsel *perf_evlist__event2evsel(struct perf_evlist *evlist,
union perf_event *event);
bool perf_evlist__exclude_kernel(struct perf_evlist *evlist);
#endif /* __PERF_EVLIST_H */