]> asedeno.scripts.mit.edu Git - linux.git/blobdiff - tools/perf/util/evlist.c
perf tools: Rename perf_evlist__exit() to evlist__exit()
[linux.git] / tools / perf / util / evlist.c
index b0364d923f7640e0f6104fa9b9c379569871f769..4c5b7040c02bbfac777e9f4f7e7cdbfe02aac575 100644 (file)
 #include "evsel.h"
 #include "debug.h"
 #include "units.h"
+#include "util.h" // page_size
+#include "../perf.h"
 #include "asm/bug.h"
 #include "bpf-event.h"
 #include <signal.h>
 #include <unistd.h>
+#include <sched.h>
+#include <stdlib.h>
 
 #include "parse-events.h"
 #include <subcmd/parse-options.h>
 #include <linux/hash.h>
 #include <linux/log2.h>
 #include <linux/err.h>
+#include <linux/string.h>
 #include <linux/zalloc.h>
+#include <perf/evlist.h>
+#include <perf/evsel.h>
+#include <perf/cpumap.h>
+
+#include <internal/xyarray.h>
 
 #ifdef LACKS_SIGQUEUE_PROTOTYPE
 int sigqueue(pid_t pid, int sig, const union sigval value);
 #endif
 
-#define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
+#define FD(e, x, y) (*(int *)xyarray__entry(e->core.fd, x, y))
 #define SID(e, x, y) xyarray__entry(e->sample_id, x, y)
 
-void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
-                      struct thread_map *threads)
+void evlist__init(struct evlist *evlist, struct perf_cpu_map *cpus,
+                 struct perf_thread_map *threads)
 {
        int i;
 
        for (i = 0; i < PERF_EVLIST__HLIST_SIZE; ++i)
                INIT_HLIST_HEAD(&evlist->heads[i]);
-       INIT_LIST_HEAD(&evlist->entries);
-       perf_evlist__set_maps(evlist, cpus, threads);
+       perf_evlist__init(&evlist->core);
+       perf_evlist__set_maps(&evlist->core, cpus, threads);
        fdarray__init(&evlist->pollfd, 64);
        evlist->workload.pid = -1;
        evlist->bkw_mmap_state = BKW_MMAP_NOTREADY;
 }
 
-struct perf_evlist *perf_evlist__new(void)
+struct evlist *evlist__new(void)
 {
-       struct perf_evlist *evlist = zalloc(sizeof(*evlist));
+       struct evlist *evlist = zalloc(sizeof(*evlist));
 
        if (evlist != NULL)
-               perf_evlist__init(evlist, NULL, NULL);
+               evlist__init(evlist, NULL, NULL);
 
        return evlist;
 }
 
-struct perf_evlist *perf_evlist__new_default(void)
+struct evlist *perf_evlist__new_default(void)
 {
-       struct perf_evlist *evlist = perf_evlist__new();
+       struct evlist *evlist = evlist__new();
 
        if (evlist && perf_evlist__add_default(evlist)) {
-               perf_evlist__delete(evlist);
+               evlist__delete(evlist);
                evlist = NULL;
        }
 
        return evlist;
 }
 
-struct perf_evlist *perf_evlist__new_dummy(void)
+struct evlist *perf_evlist__new_dummy(void)
 {
-       struct perf_evlist *evlist = perf_evlist__new();
+       struct evlist *evlist = evlist__new();
 
        if (evlist && perf_evlist__add_dummy(evlist)) {
-               perf_evlist__delete(evlist);
+               evlist__delete(evlist);
                evlist = NULL;
        }
 
@@ -96,17 +106,17 @@ struct perf_evlist *perf_evlist__new_dummy(void)
  * Events with compatible sample types all have the same id_pos
  * and is_pos.  For convenience, put a copy on evlist.
  */
-void perf_evlist__set_id_pos(struct perf_evlist *evlist)
+void perf_evlist__set_id_pos(struct evlist *evlist)
 {
-       struct perf_evsel *first = perf_evlist__first(evlist);
+       struct evsel *first = perf_evlist__first(evlist);
 
        evlist->id_pos = first->id_pos;
        evlist->is_pos = first->is_pos;
 }
 
-static void perf_evlist__update_id_pos(struct perf_evlist *evlist)
+static void perf_evlist__update_id_pos(struct evlist *evlist)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
 
        evlist__for_each_entry(evlist, evsel)
                perf_evsel__calc_id_pos(evsel);
@@ -114,161 +124,132 @@ static void perf_evlist__update_id_pos(struct perf_evlist *evlist)
        perf_evlist__set_id_pos(evlist);
 }
 
-static void perf_evlist__purge(struct perf_evlist *evlist)
+static void perf_evlist__purge(struct evlist *evlist)
 {
-       struct perf_evsel *pos, *n;
+       struct evsel *pos, *n;
 
        evlist__for_each_entry_safe(evlist, n, pos) {
-               list_del_init(&pos->node);
+               list_del_init(&pos->core.node);
                pos->evlist = NULL;
-               perf_evsel__delete(pos);
+               evsel__delete(pos);
        }
 
-       evlist->nr_entries = 0;
+       evlist->core.nr_entries = 0;
 }
 
-void perf_evlist__exit(struct perf_evlist *evlist)
+void evlist__exit(struct evlist *evlist)
 {
        zfree(&evlist->mmap);
        zfree(&evlist->overwrite_mmap);
        fdarray__exit(&evlist->pollfd);
 }
 
-void perf_evlist__delete(struct perf_evlist *evlist)
+void evlist__delete(struct evlist *evlist)
 {
        if (evlist == NULL)
                return;
 
-       perf_evlist__munmap(evlist);
-       perf_evlist__close(evlist);
-       cpu_map__put(evlist->cpus);
-       thread_map__put(evlist->threads);
-       evlist->cpus = NULL;
-       evlist->threads = NULL;
+       evlist__munmap(evlist);
+       evlist__close(evlist);
+       perf_cpu_map__put(evlist->core.cpus);
+       perf_thread_map__put(evlist->core.threads);
+       evlist->core.cpus = NULL;
+       evlist->core.threads = NULL;
        perf_evlist__purge(evlist);
-       perf_evlist__exit(evlist);
+       evlist__exit(evlist);
        free(evlist);
 }
 
-static void __perf_evlist__propagate_maps(struct perf_evlist *evlist,
-                                         struct perf_evsel *evsel)
-{
-       /*
-        * We already have cpus for evsel (via PMU sysfs) so
-        * keep it, if there's no target cpu list defined.
-        */
-       if (!evsel->own_cpus || evlist->has_user_cpus) {
-               cpu_map__put(evsel->cpus);
-               evsel->cpus = cpu_map__get(evlist->cpus);
-       } else if (evsel->cpus != evsel->own_cpus) {
-               cpu_map__put(evsel->cpus);
-               evsel->cpus = cpu_map__get(evsel->own_cpus);
-       }
-
-       thread_map__put(evsel->threads);
-       evsel->threads = thread_map__get(evlist->threads);
-}
-
-static void perf_evlist__propagate_maps(struct perf_evlist *evlist)
-{
-       struct perf_evsel *evsel;
-
-       evlist__for_each_entry(evlist, evsel)
-               __perf_evlist__propagate_maps(evlist, evsel);
-}
-
-void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry)
+void evlist__add(struct evlist *evlist, struct evsel *entry)
 {
        entry->evlist = evlist;
-       list_add_tail(&entry->node, &evlist->entries);
-       entry->idx = evlist->nr_entries;
+       entry->idx = evlist->core.nr_entries;
        entry->tracking = !entry->idx;
 
-       if (!evlist->nr_entries++)
-               perf_evlist__set_id_pos(evlist);
+       perf_evlist__add(&evlist->core, &entry->core);
 
-       __perf_evlist__propagate_maps(evlist, entry);
+       if (evlist->core.nr_entries == 1)
+               perf_evlist__set_id_pos(evlist);
 }
 
-void perf_evlist__remove(struct perf_evlist *evlist, struct perf_evsel *evsel)
+void evlist__remove(struct evlist *evlist, struct evsel *evsel)
 {
        evsel->evlist = NULL;
-       list_del_init(&evsel->node);
-       evlist->nr_entries -= 1;
+       perf_evlist__remove(&evlist->core, &evsel->core);
 }
 
-void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
+void perf_evlist__splice_list_tail(struct evlist *evlist,
                                   struct list_head *list)
 {
-       struct perf_evsel *evsel, *temp;
+       struct evsel *evsel, *temp;
 
        __evlist__for_each_entry_safe(list, temp, evsel) {
-               list_del_init(&evsel->node);
-               perf_evlist__add(evlist, evsel);
+               list_del_init(&evsel->core.node);
+               evlist__add(evlist, evsel);
        }
 }
 
 void __perf_evlist__set_leader(struct list_head *list)
 {
-       struct perf_evsel *evsel, *leader;
+       struct evsel *evsel, *leader;
 
-       leader = list_entry(list->next, struct perf_evsel, node);
-       evsel = list_entry(list->prev, struct perf_evsel, node);
+       leader = list_entry(list->next, struct evsel, core.node);
+       evsel = list_entry(list->prev, struct evsel, core.node);
 
-       leader->nr_members = evsel->idx - leader->idx + 1;
+       leader->core.nr_members = evsel->idx - leader->idx + 1;
 
        __evlist__for_each_entry(list, evsel) {
                evsel->leader = leader;
        }
 }
 
-void perf_evlist__set_leader(struct perf_evlist *evlist)
+void perf_evlist__set_leader(struct evlist *evlist)
 {
-       if (evlist->nr_entries) {
-               evlist->nr_groups = evlist->nr_entries > 1 ? 1 : 0;
-               __perf_evlist__set_leader(&evlist->entries);
+       if (evlist->core.nr_entries) {
+               evlist->nr_groups = evlist->core.nr_entries > 1 ? 1 : 0;
+               __perf_evlist__set_leader(&evlist->core.entries);
        }
 }
 
-int __perf_evlist__add_default(struct perf_evlist *evlist, bool precise)
+int __perf_evlist__add_default(struct evlist *evlist, bool precise)
 {
-       struct perf_evsel *evsel = perf_evsel__new_cycles(precise);
+       struct evsel *evsel = perf_evsel__new_cycles(precise);
 
        if (evsel == NULL)
                return -ENOMEM;
 
-       perf_evlist__add(evlist, evsel);
+       evlist__add(evlist, evsel);
        return 0;
 }
 
-int perf_evlist__add_dummy(struct perf_evlist *evlist)
+int perf_evlist__add_dummy(struct evlist *evlist)
 {
        struct perf_event_attr attr = {
                .type   = PERF_TYPE_SOFTWARE,
                .config = PERF_COUNT_SW_DUMMY,
                .size   = sizeof(attr), /* to capture ABI version */
        };
-       struct perf_evsel *evsel = perf_evsel__new_idx(&attr, evlist->nr_entries);
+       struct evsel *evsel = perf_evsel__new_idx(&attr, evlist->core.nr_entries);
 
        if (evsel == NULL)
                return -ENOMEM;
 
-       perf_evlist__add(evlist, evsel);
+       evlist__add(evlist, evsel);
        return 0;
 }
 
-static int perf_evlist__add_attrs(struct perf_evlist *evlist,
+static int evlist__add_attrs(struct evlist *evlist,
                                  struct perf_event_attr *attrs, size_t nr_attrs)
 {
-       struct perf_evsel *evsel, *n;
+       struct evsel *evsel, *n;
        LIST_HEAD(head);
        size_t i;
 
        for (i = 0; i < nr_attrs; i++) {
-               evsel = perf_evsel__new_idx(attrs + i, evlist->nr_entries + i);
+               evsel = perf_evsel__new_idx(attrs + i, evlist->core.nr_entries + i);
                if (evsel == NULL)
                        goto out_delete_partial_list;
-               list_add_tail(&evsel->node, &head);
+               list_add_tail(&evsel->core.node, &head);
        }
 
        perf_evlist__splice_list_tail(evlist, &head);
@@ -277,11 +258,11 @@ static int perf_evlist__add_attrs(struct perf_evlist *evlist,
 
 out_delete_partial_list:
        __evlist__for_each_entry_safe(&head, n, evsel)
-               perf_evsel__delete(evsel);
+               evsel__delete(evsel);
        return -1;
 }
 
-int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
+int __perf_evlist__add_default_attrs(struct evlist *evlist,
                                     struct perf_event_attr *attrs, size_t nr_attrs)
 {
        size_t i;
@@ -289,31 +270,31 @@ int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
        for (i = 0; i < nr_attrs; i++)
                event_attr_init(attrs + i);
 
-       return perf_evlist__add_attrs(evlist, attrs, nr_attrs);
+       return evlist__add_attrs(evlist, attrs, nr_attrs);
 }
 
-struct perf_evsel *
-perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id)
+struct evsel *
+perf_evlist__find_tracepoint_by_id(struct evlist *evlist, int id)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
 
        evlist__for_each_entry(evlist, evsel) {
-               if (evsel->attr.type   == PERF_TYPE_TRACEPOINT &&
-                   (int)evsel->attr.config == id)
+               if (evsel->core.attr.type   == PERF_TYPE_TRACEPOINT &&
+                   (int)evsel->core.attr.config == id)
                        return evsel;
        }
 
        return NULL;
 }
 
-struct perf_evsel *
-perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
+struct evsel *
+perf_evlist__find_tracepoint_by_name(struct evlist *evlist,
                                     const char *name)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
 
        evlist__for_each_entry(evlist, evsel) {
-               if ((evsel->attr.type == PERF_TYPE_TRACEPOINT) &&
+               if ((evsel->core.attr.type == PERF_TYPE_TRACEPOINT) &&
                    (strcmp(evsel->name, name) == 0))
                        return evsel;
        }
@@ -321,66 +302,66 @@ perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
        return NULL;
 }
 
-int perf_evlist__add_newtp(struct perf_evlist *evlist,
+int perf_evlist__add_newtp(struct evlist *evlist,
                           const char *sys, const char *name, void *handler)
 {
-       struct perf_evsel *evsel = perf_evsel__newtp(sys, name);
+       struct evsel *evsel = perf_evsel__newtp(sys, name);
 
        if (IS_ERR(evsel))
                return -1;
 
        evsel->handler = handler;
-       perf_evlist__add(evlist, evsel);
+       evlist__add(evlist, evsel);
        return 0;
 }
 
-static int perf_evlist__nr_threads(struct perf_evlist *evlist,
-                                  struct perf_evsel *evsel)
+static int perf_evlist__nr_threads(struct evlist *evlist,
+                                  struct evsel *evsel)
 {
        if (evsel->system_wide)
                return 1;
        else
-               return thread_map__nr(evlist->threads);
+               return perf_thread_map__nr(evlist->core.threads);
 }
 
-void perf_evlist__disable(struct perf_evlist *evlist)
+void evlist__disable(struct evlist *evlist)
 {
-       struct perf_evsel *pos;
+       struct evsel *pos;
 
        evlist__for_each_entry(evlist, pos) {
-               if (pos->disabled || !perf_evsel__is_group_leader(pos) || !pos->fd)
+               if (pos->disabled || !perf_evsel__is_group_leader(pos) || !pos->core.fd)
                        continue;
-               perf_evsel__disable(pos);
+               evsel__disable(pos);
        }
 
        evlist->enabled = false;
 }
 
-void perf_evlist__enable(struct perf_evlist *evlist)
+void evlist__enable(struct evlist *evlist)
 {
-       struct perf_evsel *pos;
+       struct evsel *pos;
 
        evlist__for_each_entry(evlist, pos) {
-               if (!perf_evsel__is_group_leader(pos) || !pos->fd)
+               if (!perf_evsel__is_group_leader(pos) || !pos->core.fd)
                        continue;
-               perf_evsel__enable(pos);
+               evsel__enable(pos);
        }
 
        evlist->enabled = true;
 }
 
-void perf_evlist__toggle_enable(struct perf_evlist *evlist)
+void perf_evlist__toggle_enable(struct evlist *evlist)
 {
-       (evlist->enabled ? perf_evlist__disable : perf_evlist__enable)(evlist);
+       (evlist->enabled ? evlist__disable : evlist__enable)(evlist);
 }
 
-static int perf_evlist__enable_event_cpu(struct perf_evlist *evlist,
-                                        struct perf_evsel *evsel, int cpu)
+static int perf_evlist__enable_event_cpu(struct evlist *evlist,
+                                        struct evsel *evsel, int cpu)
 {
        int thread;
        int nr_threads = perf_evlist__nr_threads(evlist, evsel);
 
-       if (!evsel->fd)
+       if (!evsel->core.fd)
                return -EINVAL;
 
        for (thread = 0; thread < nr_threads; thread++) {
@@ -391,14 +372,14 @@ static int perf_evlist__enable_event_cpu(struct perf_evlist *evlist,
        return 0;
 }
 
-static int perf_evlist__enable_event_thread(struct perf_evlist *evlist,
-                                           struct perf_evsel *evsel,
+static int perf_evlist__enable_event_thread(struct evlist *evlist,
+                                           struct evsel *evsel,
                                            int thread)
 {
        int cpu;
-       int nr_cpus = cpu_map__nr(evlist->cpus);
+       int nr_cpus = perf_cpu_map__nr(evlist->core.cpus);
 
-       if (!evsel->fd)
+       if (!evsel->core.fd)
                return -EINVAL;
 
        for (cpu = 0; cpu < nr_cpus; cpu++) {
@@ -409,10 +390,10 @@ static int perf_evlist__enable_event_thread(struct perf_evlist *evlist,
        return 0;
 }
 
-int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
-                                 struct perf_evsel *evsel, int idx)
+int perf_evlist__enable_event_idx(struct evlist *evlist,
+                                 struct evsel *evsel, int idx)
 {
-       bool per_cpu_mmaps = !cpu_map__empty(evlist->cpus);
+       bool per_cpu_mmaps = !perf_cpu_map__empty(evlist->core.cpus);
 
        if (per_cpu_mmaps)
                return perf_evlist__enable_event_cpu(evlist, evsel, idx);
@@ -420,12 +401,12 @@ int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
                return perf_evlist__enable_event_thread(evlist, evsel, idx);
 }
 
-int perf_evlist__alloc_pollfd(struct perf_evlist *evlist)
+int perf_evlist__alloc_pollfd(struct evlist *evlist)
 {
-       int nr_cpus = cpu_map__nr(evlist->cpus);
-       int nr_threads = thread_map__nr(evlist->threads);
+       int nr_cpus = perf_cpu_map__nr(evlist->core.cpus);
+       int nr_threads = perf_thread_map__nr(evlist->core.threads);
        int nfds = 0;
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
 
        evlist__for_each_entry(evlist, evsel) {
                if (evsel->system_wide)
@@ -441,8 +422,8 @@ int perf_evlist__alloc_pollfd(struct perf_evlist *evlist)
        return 0;
 }
 
-static int __perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd,
-                                    struct perf_mmap *map, short revent)
+static int __perf_evlist__add_pollfd(struct evlist *evlist, int fd,
+                                    struct mmap *map, short revent)
 {
        int pos = fdarray__add(&evlist->pollfd, fd, revent | POLLERR | POLLHUP);
        /*
@@ -458,7 +439,7 @@ static int __perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd,
        return pos;
 }
 
-int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd)
+int perf_evlist__add_pollfd(struct evlist *evlist, int fd)
 {
        return __perf_evlist__add_pollfd(evlist, fd, NULL, POLLIN);
 }
@@ -466,25 +447,25 @@ int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd)
 static void perf_evlist__munmap_filtered(struct fdarray *fda, int fd,
                                         void *arg __maybe_unused)
 {
-       struct perf_mmap *map = fda->priv[fd].ptr;
+       struct mmap *map = fda->priv[fd].ptr;
 
        if (map)
                perf_mmap__put(map);
 }
 
-int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mask)
+int perf_evlist__filter_pollfd(struct evlist *evlist, short revents_and_mask)
 {
        return fdarray__filter(&evlist->pollfd, revents_and_mask,
                               perf_evlist__munmap_filtered, NULL);
 }
 
-int perf_evlist__poll(struct perf_evlist *evlist, int timeout)
+int perf_evlist__poll(struct evlist *evlist, int timeout)
 {
        return fdarray__poll(&evlist->pollfd, timeout);
 }
 
-static void perf_evlist__id_hash(struct perf_evlist *evlist,
-                                struct perf_evsel *evsel,
+static void perf_evlist__id_hash(struct evlist *evlist,
+                                struct evsel *evsel,
                                 int cpu, int thread, u64 id)
 {
        int hash;
@@ -496,15 +477,15 @@ static void perf_evlist__id_hash(struct perf_evlist *evlist,
        hlist_add_head(&sid->node, &evlist->heads[hash]);
 }
 
-void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
+void perf_evlist__id_add(struct evlist *evlist, struct evsel *evsel,
                         int cpu, int thread, u64 id)
 {
        perf_evlist__id_hash(evlist, evsel, cpu, thread, id);
        evsel->id[evsel->ids++] = id;
 }
 
-int perf_evlist__id_add_fd(struct perf_evlist *evlist,
-                          struct perf_evsel *evsel,
+int perf_evlist__id_add_fd(struct evlist *evlist,
+                          struct evsel *evsel,
                           int cpu, int thread, int fd)
 {
        u64 read_data[4] = { 0, };
@@ -528,13 +509,13 @@ int perf_evlist__id_add_fd(struct perf_evlist *evlist,
        if (perf_evlist__read_format(evlist) & PERF_FORMAT_GROUP)
                return -1;
 
-       if (!(evsel->attr.read_format & PERF_FORMAT_ID) ||
+       if (!(evsel->core.attr.read_format & PERF_FORMAT_ID) ||
            read(fd, &read_data, sizeof(read_data)) == -1)
                return -1;
 
-       if (evsel->attr.read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
+       if (evsel->core.attr.read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
                ++id_idx;
-       if (evsel->attr.read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
+       if (evsel->core.attr.read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
                ++id_idx;
 
        id = read_data[id_idx];
@@ -544,23 +525,23 @@ int perf_evlist__id_add_fd(struct perf_evlist *evlist,
        return 0;
 }
 
-static void perf_evlist__set_sid_idx(struct perf_evlist *evlist,
-                                    struct perf_evsel *evsel, int idx, int cpu,
+static void perf_evlist__set_sid_idx(struct evlist *evlist,
+                                    struct evsel *evsel, int idx, int cpu,
                                     int thread)
 {
        struct perf_sample_id *sid = SID(evsel, cpu, thread);
        sid->idx = idx;
-       if (evlist->cpus && cpu >= 0)
-               sid->cpu = evlist->cpus->map[cpu];
+       if (evlist->core.cpus && cpu >= 0)
+               sid->cpu = evlist->core.cpus->map[cpu];
        else
                sid->cpu = -1;
-       if (!evsel->system_wide && evlist->threads && thread >= 0)
-               sid->tid = thread_map__pid(evlist->threads, thread);
+       if (!evsel->system_wide && evlist->core.threads && thread >= 0)
+               sid->tid = perf_thread_map__pid(evlist->core.threads, thread);
        else
                sid->tid = -1;
 }
 
-struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id)
+struct perf_sample_id *perf_evlist__id2sid(struct evlist *evlist, u64 id)
 {
        struct hlist_head *head;
        struct perf_sample_id *sid;
@@ -576,11 +557,11 @@ struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id)
        return NULL;
 }
 
-struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id)
+struct evsel *perf_evlist__id2evsel(struct evlist *evlist, u64 id)
 {
        struct perf_sample_id *sid;
 
-       if (evlist->nr_entries == 1 || !id)
+       if (evlist->core.nr_entries == 1 || !id)
                return perf_evlist__first(evlist);
 
        sid = perf_evlist__id2sid(evlist, id);
@@ -593,7 +574,7 @@ struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id)
        return NULL;
 }
 
-struct perf_evsel *perf_evlist__id2evsel_strict(struct perf_evlist *evlist,
+struct evsel *perf_evlist__id2evsel_strict(struct evlist *evlist,
                                                u64 id)
 {
        struct perf_sample_id *sid;
@@ -608,10 +589,10 @@ struct perf_evsel *perf_evlist__id2evsel_strict(struct perf_evlist *evlist,
        return NULL;
 }
 
-static int perf_evlist__event2id(struct perf_evlist *evlist,
+static int perf_evlist__event2id(struct evlist *evlist,
                                 union perf_event *event, u64 *id)
 {
-       const u64 *array = event->sample.array;
+       const __u64 *array = event->sample.array;
        ssize_t n;
 
        n = (event->header.size - sizeof(event->header)) >> 3;
@@ -629,19 +610,19 @@ static int perf_evlist__event2id(struct perf_evlist *evlist,
        return 0;
 }
 
-struct perf_evsel *perf_evlist__event2evsel(struct perf_evlist *evlist,
+struct evsel *perf_evlist__event2evsel(struct evlist *evlist,
                                            union perf_event *event)
 {
-       struct perf_evsel *first = perf_evlist__first(evlist);
+       struct evsel *first = perf_evlist__first(evlist);
        struct hlist_head *head;
        struct perf_sample_id *sid;
        int hash;
        u64 id;
 
-       if (evlist->nr_entries == 1)
+       if (evlist->core.nr_entries == 1)
                return first;
 
-       if (!first->attr.sample_id_all &&
+       if (!first->core.attr.sample_id_all &&
            event->header.type != PERF_RECORD_SAMPLE)
                return first;
 
@@ -662,7 +643,7 @@ struct perf_evsel *perf_evlist__event2evsel(struct perf_evlist *evlist,
        return NULL;
 }
 
-static int perf_evlist__set_paused(struct perf_evlist *evlist, bool value)
+static int perf_evlist__set_paused(struct evlist *evlist, bool value)
 {
        int i;
 
@@ -682,17 +663,17 @@ static int perf_evlist__set_paused(struct perf_evlist *evlist, bool value)
        return 0;
 }
 
-static int perf_evlist__pause(struct perf_evlist *evlist)
+static int perf_evlist__pause(struct evlist *evlist)
 {
        return perf_evlist__set_paused(evlist, true);
 }
 
-static int perf_evlist__resume(struct perf_evlist *evlist)
+static int perf_evlist__resume(struct evlist *evlist)
 {
        return perf_evlist__set_paused(evlist, false);
 }
 
-static void perf_evlist__munmap_nofree(struct perf_evlist *evlist)
+static void evlist__munmap_nofree(struct evlist *evlist)
 {
        int i;
 
@@ -705,23 +686,23 @@ static void perf_evlist__munmap_nofree(struct perf_evlist *evlist)
                        perf_mmap__munmap(&evlist->overwrite_mmap[i]);
 }
 
-void perf_evlist__munmap(struct perf_evlist *evlist)
+void evlist__munmap(struct evlist *evlist)
 {
-       perf_evlist__munmap_nofree(evlist);
+       evlist__munmap_nofree(evlist);
        zfree(&evlist->mmap);
        zfree(&evlist->overwrite_mmap);
 }
 
-static struct perf_mmap *perf_evlist__alloc_mmap(struct perf_evlist *evlist,
-                                                bool overwrite)
+static struct mmap *evlist__alloc_mmap(struct evlist *evlist,
+                                      bool overwrite)
 {
        int i;
-       struct perf_mmap *map;
+       struct mmap *map;
 
-       evlist->nr_mmaps = cpu_map__nr(evlist->cpus);
-       if (cpu_map__empty(evlist->cpus))
-               evlist->nr_mmaps = thread_map__nr(evlist->threads);
-       map = zalloc(evlist->nr_mmaps * sizeof(struct perf_mmap));
+       evlist->nr_mmaps = perf_cpu_map__nr(evlist->core.cpus);
+       if (perf_cpu_map__empty(evlist->core.cpus))
+               evlist->nr_mmaps = perf_thread_map__nr(evlist->core.threads);
+       map = zalloc(evlist->nr_mmaps * sizeof(struct mmap));
        if (!map)
                return NULL;
 
@@ -743,35 +724,35 @@ static struct perf_mmap *perf_evlist__alloc_mmap(struct perf_evlist *evlist,
 }
 
 static bool
-perf_evlist__should_poll(struct perf_evlist *evlist __maybe_unused,
-                        struct perf_evsel *evsel)
+perf_evlist__should_poll(struct evlist *evlist __maybe_unused,
+                        struct evsel *evsel)
 {
-       if (evsel->attr.write_backward)
+       if (evsel->core.attr.write_backward)
                return false;
        return true;
 }
 
-static int perf_evlist__mmap_per_evsel(struct perf_evlist *evlist, int idx,
+static int evlist__mmap_per_evsel(struct evlist *evlist, int idx,
                                       struct mmap_params *mp, int cpu_idx,
                                       int thread, int *_output, int *_output_overwrite)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
        int revent;
-       int evlist_cpu = cpu_map__cpu(evlist->cpus, cpu_idx);
+       int evlist_cpu = cpu_map__cpu(evlist->core.cpus, cpu_idx);
 
        evlist__for_each_entry(evlist, evsel) {
-               struct perf_mmap *maps = evlist->mmap;
+               struct mmap *maps = evlist->mmap;
                int *output = _output;
                int fd;
                int cpu;
 
                mp->prot = PROT_READ | PROT_WRITE;
-               if (evsel->attr.write_backward) {
+               if (evsel->core.attr.write_backward) {
                        output = _output_overwrite;
                        maps = evlist->overwrite_mmap;
 
                        if (!maps) {
-                               maps = perf_evlist__alloc_mmap(evlist, true);
+                               maps = evlist__alloc_mmap(evlist, true);
                                if (!maps)
                                        return -1;
                                evlist->overwrite_mmap = maps;
@@ -784,7 +765,7 @@ static int perf_evlist__mmap_per_evsel(struct perf_evlist *evlist, int idx,
                if (evsel->system_wide && thread)
                        continue;
 
-               cpu = cpu_map__idx(evsel->cpus, evlist_cpu);
+               cpu = perf_cpu_map__idx(evsel->core.cpus, evlist_cpu);
                if (cpu == -1)
                        continue;
 
@@ -817,7 +798,7 @@ static int perf_evlist__mmap_per_evsel(struct perf_evlist *evlist, int idx,
                        return -1;
                }
 
-               if (evsel->attr.read_format & PERF_FORMAT_ID) {
+               if (evsel->core.attr.read_format & PERF_FORMAT_ID) {
                        if (perf_evlist__id_add_fd(evlist, evsel, cpu, thread,
                                                   fd) < 0)
                                return -1;
@@ -829,12 +810,12 @@ static int perf_evlist__mmap_per_evsel(struct perf_evlist *evlist, int idx,
        return 0;
 }
 
-static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist,
+static int evlist__mmap_per_cpu(struct evlist *evlist,
                                     struct mmap_params *mp)
 {
        int cpu, thread;
-       int nr_cpus = cpu_map__nr(evlist->cpus);
-       int nr_threads = thread_map__nr(evlist->threads);
+       int nr_cpus = perf_cpu_map__nr(evlist->core.cpus);
+       int nr_threads = perf_thread_map__nr(evlist->core.threads);
 
        pr_debug2("perf event ring buffer mmapped per cpu\n");
        for (cpu = 0; cpu < nr_cpus; cpu++) {
@@ -845,7 +826,7 @@ static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist,
                                              true);
 
                for (thread = 0; thread < nr_threads; thread++) {
-                       if (perf_evlist__mmap_per_evsel(evlist, cpu, mp, cpu,
+                       if (evlist__mmap_per_evsel(evlist, cpu, mp, cpu,
                                                        thread, &output, &output_overwrite))
                                goto out_unmap;
                }
@@ -854,15 +835,15 @@ static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist,
        return 0;
 
 out_unmap:
-       perf_evlist__munmap_nofree(evlist);
+       evlist__munmap_nofree(evlist);
        return -1;
 }
 
-static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist,
+static int evlist__mmap_per_thread(struct evlist *evlist,
                                        struct mmap_params *mp)
 {
        int thread;
-       int nr_threads = thread_map__nr(evlist->threads);
+       int nr_threads = perf_thread_map__nr(evlist->core.threads);
 
        pr_debug2("perf event ring buffer mmapped per thread\n");
        for (thread = 0; thread < nr_threads; thread++) {
@@ -872,7 +853,7 @@ static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist,
                auxtrace_mmap_params__set_idx(&mp->auxtrace_mp, evlist, thread,
                                              false);
 
-               if (perf_evlist__mmap_per_evsel(evlist, thread, mp, 0, thread,
+               if (evlist__mmap_per_evsel(evlist, thread, mp, 0, thread,
                                                &output, &output_overwrite))
                        goto out_unmap;
        }
@@ -880,7 +861,7 @@ static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist,
        return 0;
 
 out_unmap:
-       perf_evlist__munmap_nofree(evlist);
+       evlist__munmap_nofree(evlist);
        return -1;
 }
 
@@ -907,7 +888,7 @@ unsigned long perf_event_mlock_kb_in_pages(void)
        return pages;
 }
 
-size_t perf_evlist__mmap_size(unsigned long pages)
+size_t evlist__mmap_size(unsigned long pages)
 {
        if (pages == UINT_MAX)
                pages = perf_event_mlock_kb_in_pages();
@@ -990,7 +971,7 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
 }
 
 /**
- * perf_evlist__mmap_ex - Create mmaps to receive events.
+ * evlist__mmap_ex - Create mmaps to receive events.
  * @evlist: list of events
  * @pages: map length in pages
  * @overwrite: overwrite older events?
@@ -998,7 +979,7 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
  * @auxtrace_overwrite - overwrite older auxtrace data?
  *
  * If @overwrite is %false the user needs to signal event consumption using
- * perf_mmap__write_tail().  Using perf_evlist__mmap_read() does this
+ * perf_mmap__write_tail().  Using evlist__mmap_read() does this
  * automatically.
  *
  * Similarly, if @auxtrace_overwrite is %false the user needs to signal data
@@ -1006,14 +987,14 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
  *
  * Return: %0 on success, negative error code otherwise.
  */
-int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages,
+int evlist__mmap_ex(struct evlist *evlist, unsigned int pages,
                         unsigned int auxtrace_pages,
                         bool auxtrace_overwrite, int nr_cblocks, int affinity, int flush,
                         int comp_level)
 {
-       struct perf_evsel *evsel;
-       const struct cpu_map *cpus = evlist->cpus;
-       const struct thread_map *threads = evlist->threads;
+       struct evsel *evsel;
+       const struct perf_cpu_map *cpus = evlist->core.cpus;
+       const struct perf_thread_map *threads = evlist->core.threads;
        /*
         * Delay setting mp.prot: set it before calling perf_mmap__mmap.
         * Its value is decided by evsel's write_backward.
@@ -1023,14 +1004,14 @@ int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages,
                                  .comp_level = comp_level };
 
        if (!evlist->mmap)
-               evlist->mmap = perf_evlist__alloc_mmap(evlist, false);
+               evlist->mmap = evlist__alloc_mmap(evlist, false);
        if (!evlist->mmap)
                return -ENOMEM;
 
        if (evlist->pollfd.entries == NULL && perf_evlist__alloc_pollfd(evlist) < 0)
                return -ENOMEM;
 
-       evlist->mmap_len = perf_evlist__mmap_size(pages);
+       evlist->mmap_len = evlist__mmap_size(pages);
        pr_debug("mmap size %zuB\n", evlist->mmap_len);
        mp.mask = evlist->mmap_len - page_size - 1;
 
@@ -1038,28 +1019,28 @@ int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages,
                                   auxtrace_pages, auxtrace_overwrite);
 
        evlist__for_each_entry(evlist, evsel) {
-               if ((evsel->attr.read_format & PERF_FORMAT_ID) &&
+               if ((evsel->core.attr.read_format & PERF_FORMAT_ID) &&
                    evsel->sample_id == NULL &&
-                   perf_evsel__alloc_id(evsel, cpu_map__nr(cpus), threads->nr) < 0)
+                   perf_evsel__alloc_id(evsel, perf_cpu_map__nr(cpus), threads->nr) < 0)
                        return -ENOMEM;
        }
 
-       if (cpu_map__empty(cpus))
-               return perf_evlist__mmap_per_thread(evlist, &mp);
+       if (perf_cpu_map__empty(cpus))
+               return evlist__mmap_per_thread(evlist, &mp);
 
-       return perf_evlist__mmap_per_cpu(evlist, &mp);
+       return evlist__mmap_per_cpu(evlist, &mp);
 }
 
-int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages)
+int evlist__mmap(struct evlist *evlist, unsigned int pages)
 {
-       return perf_evlist__mmap_ex(evlist, pages, 0, false, 0, PERF_AFFINITY_SYS, 1, 0);
+       return evlist__mmap_ex(evlist, pages, 0, false, 0, PERF_AFFINITY_SYS, 1, 0);
 }
 
-int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
+int perf_evlist__create_maps(struct evlist *evlist, struct target *target)
 {
        bool all_threads = (target->per_thread && target->system_wide);
-       struct cpu_map *cpus;
-       struct thread_map *threads;
+       struct perf_cpu_map *cpus;
+       struct perf_thread_map *threads;
 
        /*
         * If specify '-a' and '--per-thread' to perf record, perf record
@@ -1086,68 +1067,45 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
                return -1;
 
        if (target__uses_dummy_map(target))
-               cpus = cpu_map__dummy_new();
+               cpus = perf_cpu_map__dummy_new();
        else
-               cpus = cpu_map__new(target->cpu_list);
+               cpus = perf_cpu_map__new(target->cpu_list);
 
        if (!cpus)
                goto out_delete_threads;
 
-       evlist->has_user_cpus = !!target->cpu_list;
+       evlist->core.has_user_cpus = !!target->cpu_list;
 
-       perf_evlist__set_maps(evlist, cpus, threads);
+       perf_evlist__set_maps(&evlist->core, cpus, threads);
 
        return 0;
 
 out_delete_threads:
-       thread_map__put(threads);
+       perf_thread_map__put(threads);
        return -1;
 }
 
-void perf_evlist__set_maps(struct perf_evlist *evlist, struct cpu_map *cpus,
-                          struct thread_map *threads)
-{
-       /*
-        * Allow for the possibility that one or another of the maps isn't being
-        * changed i.e. don't put it.  Note we are assuming the maps that are
-        * being applied are brand new and evlist is taking ownership of the
-        * original reference count of 1.  If that is not the case it is up to
-        * the caller to increase the reference count.
-        */
-       if (cpus != evlist->cpus) {
-               cpu_map__put(evlist->cpus);
-               evlist->cpus = cpu_map__get(cpus);
-       }
-
-       if (threads != evlist->threads) {
-               thread_map__put(evlist->threads);
-               evlist->threads = thread_map__get(threads);
-       }
-
-       perf_evlist__propagate_maps(evlist);
-}
-
-void __perf_evlist__set_sample_bit(struct perf_evlist *evlist,
+void __perf_evlist__set_sample_bit(struct evlist *evlist,
                                   enum perf_event_sample_format bit)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
 
        evlist__for_each_entry(evlist, evsel)
                __perf_evsel__set_sample_bit(evsel, bit);
 }
 
-void __perf_evlist__reset_sample_bit(struct perf_evlist *evlist,
+void __perf_evlist__reset_sample_bit(struct evlist *evlist,
                                     enum perf_event_sample_format bit)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
 
        evlist__for_each_entry(evlist, evsel)
                __perf_evsel__reset_sample_bit(evsel, bit);
 }
 
-int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel)
+int perf_evlist__apply_filters(struct evlist *evlist, struct evsel **err_evsel)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
        int err = 0;
 
        evlist__for_each_entry(evlist, evsel) {
@@ -1158,7 +1116,7 @@ int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **e
                 * filters only work for tracepoint event, which doesn't have cpu limit.
                 * So evlist and evsel should always be same.
                 */
-               err = perf_evsel__apply_filter(evsel, evsel->filter);
+               err = perf_evsel__apply_filter(&evsel->core, evsel->filter);
                if (err) {
                        *err_evsel = evsel;
                        break;
@@ -1168,13 +1126,13 @@ int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **e
        return err;
 }
 
-int perf_evlist__set_tp_filter(struct perf_evlist *evlist, const char *filter)
+int perf_evlist__set_tp_filter(struct evlist *evlist, const char *filter)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
        int err = 0;
 
        evlist__for_each_entry(evlist, evsel) {
-               if (evsel->attr.type != PERF_TYPE_TRACEPOINT)
+               if (evsel->core.attr.type != PERF_TYPE_TRACEPOINT)
                        continue;
 
                err = perf_evsel__set_filter(evsel, filter);
@@ -1185,7 +1143,7 @@ int perf_evlist__set_tp_filter(struct perf_evlist *evlist, const char *filter)
        return err;
 }
 
-int perf_evlist__set_tp_filter_pids(struct perf_evlist *evlist, size_t npids, pid_t *pids)
+int perf_evlist__set_tp_filter_pids(struct evlist *evlist, size_t npids, pid_t *pids)
 {
        char *filter;
        int ret = -1;
@@ -1212,16 +1170,16 @@ int perf_evlist__set_tp_filter_pids(struct perf_evlist *evlist, size_t npids, pi
        return ret;
 }
 
-int perf_evlist__set_tp_filter_pid(struct perf_evlist *evlist, pid_t pid)
+int perf_evlist__set_tp_filter_pid(struct evlist *evlist, pid_t pid)
 {
        return perf_evlist__set_tp_filter_pids(evlist, 1, &pid);
 }
 
-bool perf_evlist__valid_sample_type(struct perf_evlist *evlist)
+bool perf_evlist__valid_sample_type(struct evlist *evlist)
 {
-       struct perf_evsel *pos;
+       struct evsel *pos;
 
-       if (evlist->nr_entries == 1)
+       if (evlist->core.nr_entries == 1)
                return true;
 
        if (evlist->id_pos < 0 || evlist->is_pos < 0)
@@ -1236,43 +1194,43 @@ bool perf_evlist__valid_sample_type(struct perf_evlist *evlist)
        return true;
 }
 
-u64 __perf_evlist__combined_sample_type(struct perf_evlist *evlist)
+u64 __perf_evlist__combined_sample_type(struct evlist *evlist)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
 
        if (evlist->combined_sample_type)
                return evlist->combined_sample_type;
 
        evlist__for_each_entry(evlist, evsel)
-               evlist->combined_sample_type |= evsel->attr.sample_type;
+               evlist->combined_sample_type |= evsel->core.attr.sample_type;
 
        return evlist->combined_sample_type;
 }
 
-u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist)
+u64 perf_evlist__combined_sample_type(struct evlist *evlist)
 {
        evlist->combined_sample_type = 0;
        return __perf_evlist__combined_sample_type(evlist);
 }
 
-u64 perf_evlist__combined_branch_type(struct perf_evlist *evlist)
+u64 perf_evlist__combined_branch_type(struct evlist *evlist)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
        u64 branch_type = 0;
 
        evlist__for_each_entry(evlist, evsel)
-               branch_type |= evsel->attr.branch_sample_type;
+               branch_type |= evsel->core.attr.branch_sample_type;
        return branch_type;
 }
 
-bool perf_evlist__valid_read_format(struct perf_evlist *evlist)
+bool perf_evlist__valid_read_format(struct evlist *evlist)
 {
-       struct perf_evsel *first = perf_evlist__first(evlist), *pos = first;
-       u64 read_format = first->attr.read_format;
-       u64 sample_type = first->attr.sample_type;
+       struct evsel *first = perf_evlist__first(evlist), *pos = first;
+       u64 read_format = first->core.attr.read_format;
+       u64 sample_type = first->core.attr.sample_type;
 
        evlist__for_each_entry(evlist, pos) {
-               if (read_format != pos->attr.read_format)
+               if (read_format != pos->core.attr.read_format)
                        return false;
        }
 
@@ -1285,23 +1243,23 @@ bool perf_evlist__valid_read_format(struct perf_evlist *evlist)
        return true;
 }
 
-u64 perf_evlist__read_format(struct perf_evlist *evlist)
+u64 perf_evlist__read_format(struct evlist *evlist)
 {
-       struct perf_evsel *first = perf_evlist__first(evlist);
-       return first->attr.read_format;
+       struct evsel *first = perf_evlist__first(evlist);
+       return first->core.attr.read_format;
 }
 
-u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist)
+u16 perf_evlist__id_hdr_size(struct evlist *evlist)
 {
-       struct perf_evsel *first = perf_evlist__first(evlist);
+       struct evsel *first = perf_evlist__first(evlist);
        struct perf_sample *data;
        u64 sample_type;
        u16 size = 0;
 
-       if (!first->attr.sample_id_all)
+       if (!first->core.attr.sample_id_all)
                goto out;
 
-       sample_type = first->attr.sample_type;
+       sample_type = first->core.attr.sample_type;
 
        if (sample_type & PERF_SAMPLE_TID)
                size += sizeof(data->tid) * 2;
@@ -1324,42 +1282,42 @@ u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist)
        return size;
 }
 
-bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist)
+bool perf_evlist__valid_sample_id_all(struct evlist *evlist)
 {
-       struct perf_evsel *first = perf_evlist__first(evlist), *pos = first;
+       struct evsel *first = perf_evlist__first(evlist), *pos = first;
 
        evlist__for_each_entry_continue(evlist, pos) {
-               if (first->attr.sample_id_all != pos->attr.sample_id_all)
+               if (first->core.attr.sample_id_all != pos->core.attr.sample_id_all)
                        return false;
        }
 
        return true;
 }
 
-bool perf_evlist__sample_id_all(struct perf_evlist *evlist)
+bool perf_evlist__sample_id_all(struct evlist *evlist)
 {
-       struct perf_evsel *first = perf_evlist__first(evlist);
-       return first->attr.sample_id_all;
+       struct evsel *first = perf_evlist__first(evlist);
+       return first->core.attr.sample_id_all;
 }
 
-void perf_evlist__set_selected(struct perf_evlist *evlist,
-                              struct perf_evsel *evsel)
+void perf_evlist__set_selected(struct evlist *evlist,
+                              struct evsel *evsel)
 {
        evlist->selected = evsel;
 }
 
-void perf_evlist__close(struct perf_evlist *evlist)
+void evlist__close(struct evlist *evlist)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
 
        evlist__for_each_entry_reverse(evlist, evsel)
-               perf_evsel__close(evsel);
+               evsel__close(evsel);
 }
 
-static int perf_evlist__create_syswide_maps(struct perf_evlist *evlist)
+static int perf_evlist__create_syswide_maps(struct evlist *evlist)
 {
-       struct cpu_map    *cpus;
-       struct thread_map *threads;
+       struct perf_cpu_map *cpus;
+       struct perf_thread_map *threads;
        int err = -ENOMEM;
 
        /*
@@ -1371,32 +1329,32 @@ static int perf_evlist__create_syswide_maps(struct perf_evlist *evlist)
         * error, and we may not want to do that fallback to a
         * default cpu identity map :-\
         */
-       cpus = cpu_map__new(NULL);
+       cpus = perf_cpu_map__new(NULL);
        if (!cpus)
                goto out;
 
-       threads = thread_map__new_dummy();
+       threads = perf_thread_map__new_dummy();
        if (!threads)
                goto out_put;
 
-       perf_evlist__set_maps(evlist, cpus, threads);
+       perf_evlist__set_maps(&evlist->core, cpus, threads);
 out:
        return err;
 out_put:
-       cpu_map__put(cpus);
+       perf_cpu_map__put(cpus);
        goto out;
 }
 
-int perf_evlist__open(struct perf_evlist *evlist)
+int evlist__open(struct evlist *evlist)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
        int err;
 
        /*
         * Default: one fd per CPU, all threads, aka systemwide
         * as sys_perf_event_open(cpu = -1, thread = -1) is EINVAL
         */
-       if (evlist->threads == NULL && evlist->cpus == NULL) {
+       if (evlist->core.threads == NULL && evlist->core.cpus == NULL) {
                err = perf_evlist__create_syswide_maps(evlist);
                if (err < 0)
                        goto out_err;
@@ -1405,19 +1363,19 @@ int perf_evlist__open(struct perf_evlist *evlist)
        perf_evlist__update_id_pos(evlist);
 
        evlist__for_each_entry(evlist, evsel) {
-               err = perf_evsel__open(evsel, evsel->cpus, evsel->threads);
+               err = evsel__open(evsel, evsel->core.cpus, evsel->core.threads);
                if (err < 0)
                        goto out_err;
        }
 
        return 0;
 out_err:
-       perf_evlist__close(evlist);
+       evlist__close(evlist);
        errno = -err;
        return err;
 }
 
-int perf_evlist__prepare_workload(struct perf_evlist *evlist, struct target *target,
+int perf_evlist__prepare_workload(struct evlist *evlist, struct target *target,
                                  const char *argv[], bool pipe_output,
                                  void (*exec_error)(int signo, siginfo_t *info, void *ucontext))
 {
@@ -1499,12 +1457,12 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist, struct target *tar
        }
 
        if (target__none(target)) {
-               if (evlist->threads == NULL) {
+               if (evlist->core.threads == NULL) {
                        fprintf(stderr, "FATAL: evlist->threads need to be set at this point (%s:%d).\n",
                                __func__, __LINE__);
                        goto out_close_pipes;
                }
-               thread_map__set_pid(evlist->threads, 0, evlist->workload.pid);
+               perf_thread_map__set_pid(evlist->core.threads, 0, evlist->workload.pid);
        }
 
        close(child_ready_pipe[1]);
@@ -1531,7 +1489,7 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist, struct target *tar
        return -1;
 }
 
-int perf_evlist__start_workload(struct perf_evlist *evlist)
+int perf_evlist__start_workload(struct evlist *evlist)
 {
        if (evlist->workload.cork_fd > 0) {
                char bf = 0;
@@ -1550,30 +1508,30 @@ int perf_evlist__start_workload(struct perf_evlist *evlist)
        return 0;
 }
 
-int perf_evlist__parse_sample(struct perf_evlist *evlist, union perf_event *event,
+int perf_evlist__parse_sample(struct evlist *evlist, union perf_event *event,
                              struct perf_sample *sample)
 {
-       struct perf_evsel *evsel = perf_evlist__event2evsel(evlist, event);
+       struct evsel *evsel = perf_evlist__event2evsel(evlist, event);
 
        if (!evsel)
                return -EFAULT;
        return perf_evsel__parse_sample(evsel, event, sample);
 }
 
-int perf_evlist__parse_sample_timestamp(struct perf_evlist *evlist,
+int perf_evlist__parse_sample_timestamp(struct evlist *evlist,
                                        union perf_event *event,
                                        u64 *timestamp)
 {
-       struct perf_evsel *evsel = perf_evlist__event2evsel(evlist, event);
+       struct evsel *evsel = perf_evlist__event2evsel(evlist, event);
 
        if (!evsel)
                return -EFAULT;
        return perf_evsel__parse_sample_timestamp(evsel, event, timestamp);
 }
 
-size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp)
+size_t perf_evlist__fprintf(struct evlist *evlist, FILE *fp)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
        size_t printed = 0;
 
        evlist__for_each_entry(evlist, evsel) {
@@ -1584,7 +1542,7 @@ size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp)
        return printed + fprintf(fp, "\n");
 }
 
-int perf_evlist__strerror_open(struct perf_evlist *evlist,
+int perf_evlist__strerror_open(struct evlist *evlist,
                               int err, char *buf, size_t size)
 {
        int printed, value;
@@ -1613,20 +1571,20 @@ int perf_evlist__strerror_open(struct perf_evlist *evlist,
                                    "Hint:\tThe current value is %d.", value);
                break;
        case EINVAL: {
-               struct perf_evsel *first = perf_evlist__first(evlist);
+               struct evsel *first = perf_evlist__first(evlist);
                int max_freq;
 
                if (sysctl__read_int("kernel/perf_event_max_sample_rate", &max_freq) < 0)
                        goto out_default;
 
-               if (first->attr.sample_freq < (u64)max_freq)
+               if (first->core.attr.sample_freq < (u64)max_freq)
                        goto out_default;
 
                printed = scnprintf(buf, size,
                                    "Error:\t%s.\n"
                                    "Hint:\tCheck /proc/sys/kernel/perf_event_max_sample_rate.\n"
                                    "Hint:\tThe current value is %d and %" PRIu64 " is being requested.",
-                                   emsg, max_freq, first->attr.sample_freq);
+                                   emsg, max_freq, first->core.attr.sample_freq);
                break;
        }
        default:
@@ -1638,7 +1596,7 @@ int perf_evlist__strerror_open(struct perf_evlist *evlist,
        return 0;
 }
 
-int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, size_t size)
+int perf_evlist__strerror_mmap(struct evlist *evlist, int err, char *buf, size_t size)
 {
        char sbuf[STRERR_BUFSIZE], *emsg = str_error_r(err, sbuf, sizeof(sbuf));
        int pages_attempted = evlist->mmap_len / 1024, pages_max_per_user, printed = 0;
@@ -1669,10 +1627,10 @@ int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, s
        return 0;
 }
 
-void perf_evlist__to_front(struct perf_evlist *evlist,
-                          struct perf_evsel *move_evsel)
+void perf_evlist__to_front(struct evlist *evlist,
+                          struct evsel *move_evsel)
 {
-       struct perf_evsel *evsel, *n;
+       struct evsel *evsel, *n;
        LIST_HEAD(move);
 
        if (move_evsel == perf_evlist__first(evlist))
@@ -1680,16 +1638,16 @@ void perf_evlist__to_front(struct perf_evlist *evlist,
 
        evlist__for_each_entry_safe(evlist, n, evsel) {
                if (evsel->leader == move_evsel->leader)
-                       list_move_tail(&evsel->node, &move);
+                       list_move_tail(&evsel->core.node, &move);
        }
 
-       list_splice(&move, &evlist->entries);
+       list_splice(&move, &evlist->core.entries);
 }
 
-void perf_evlist__set_tracking_event(struct perf_evlist *evlist,
-                                    struct perf_evsel *tracking_evsel)
+void perf_evlist__set_tracking_event(struct evlist *evlist,
+                                    struct evsel *tracking_evsel)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
 
        if (tracking_evsel->tracking)
                return;
@@ -1702,11 +1660,11 @@ void perf_evlist__set_tracking_event(struct perf_evlist *evlist,
        tracking_evsel->tracking = true;
 }
 
-struct perf_evsel *
-perf_evlist__find_evsel_by_str(struct perf_evlist *evlist,
+struct evsel *
+perf_evlist__find_evsel_by_str(struct evlist *evlist,
                               const char *str)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
 
        evlist__for_each_entry(evlist, evsel) {
                if (!evsel->name)
@@ -1718,7 +1676,7 @@ perf_evlist__find_evsel_by_str(struct perf_evlist *evlist,
        return NULL;
 }
 
-void perf_evlist__toggle_bkw_mmap(struct perf_evlist *evlist,
+void perf_evlist__toggle_bkw_mmap(struct evlist *evlist,
                                  enum bkw_mmap_state state)
 {
        enum bkw_mmap_state old_state = evlist->bkw_mmap_state;
@@ -1776,12 +1734,12 @@ void perf_evlist__toggle_bkw_mmap(struct perf_evlist *evlist,
        return;
 }
 
-bool perf_evlist__exclude_kernel(struct perf_evlist *evlist)
+bool perf_evlist__exclude_kernel(struct evlist *evlist)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
 
        evlist__for_each_entry(evlist, evsel) {
-               if (!evsel->attr.exclude_kernel)
+               if (!evsel->core.attr.exclude_kernel)
                        return false;
        }
 
@@ -1793,25 +1751,25 @@ bool perf_evlist__exclude_kernel(struct perf_evlist *evlist)
  * the group display. Set the artificial group and set the leader's
  * forced_leader flag to notify the display code.
  */
-void perf_evlist__force_leader(struct perf_evlist *evlist)
+void perf_evlist__force_leader(struct evlist *evlist)
 {
        if (!evlist->nr_groups) {
-               struct perf_evsel *leader = perf_evlist__first(evlist);
+               struct evsel *leader = perf_evlist__first(evlist);
 
                perf_evlist__set_leader(evlist);
                leader->forced_leader = true;
        }
 }
 
-struct perf_evsel *perf_evlist__reset_weak_group(struct perf_evlist *evsel_list,
-                                                struct perf_evsel *evsel)
+struct evsel *perf_evlist__reset_weak_group(struct evlist *evsel_list,
+                                                struct evsel *evsel)
 {
-       struct perf_evsel *c2, *leader;
+       struct evsel *c2, *leader;
        bool is_open = true;
 
        leader = evsel->leader;
        pr_debug("Weak group for %s/%d failed\n",
-                       leader->name, leader->nr_members);
+                       leader->name, leader->core.nr_members);
 
        /*
         * for_each_group_member doesn't work here because it doesn't
@@ -1822,24 +1780,24 @@ struct perf_evsel *perf_evlist__reset_weak_group(struct perf_evlist *evsel_list,
                        is_open = false;
                if (c2->leader == leader) {
                        if (is_open)
-                               perf_evsel__close(c2);
+                               evsel__close(c2);
                        c2->leader = c2;
-                       c2->nr_members = 0;
+                       c2->core.nr_members = 0;
                }
        }
        return leader;
 }
 
-int perf_evlist__add_sb_event(struct perf_evlist **evlist,
+int perf_evlist__add_sb_event(struct evlist **evlist,
                              struct perf_event_attr *attr,
                              perf_evsel__sb_cb_t cb,
                              void *data)
 {
-       struct perf_evsel *evsel;
+       struct evsel *evsel;
        bool new_evlist = (*evlist) == NULL;
 
        if (*evlist == NULL)
-               *evlist = perf_evlist__new();
+               *evlist = evlist__new();
        if (*evlist == NULL)
                return -1;
 
@@ -1848,18 +1806,18 @@ int perf_evlist__add_sb_event(struct perf_evlist **evlist,
                attr->sample_id_all = 1;
        }
 
-       evsel = perf_evsel__new_idx(attr, (*evlist)->nr_entries);
+       evsel = perf_evsel__new_idx(attr, (*evlist)->core.nr_entries);
        if (!evsel)
                goto out_err;
 
        evsel->side_band.cb = cb;
        evsel->side_band.data = data;
-       perf_evlist__add(*evlist, evsel);
+       evlist__add(*evlist, evsel);
        return 0;
 
 out_err:
        if (new_evlist) {
-               perf_evlist__delete(*evlist);
+               evlist__delete(*evlist);
                *evlist = NULL;
        }
        return -1;
@@ -1867,9 +1825,17 @@ int perf_evlist__add_sb_event(struct perf_evlist **evlist,
 
 static void *perf_evlist__poll_thread(void *arg)
 {
-       struct perf_evlist *evlist = arg;
+       struct evlist *evlist = arg;
        bool draining = false;
        int i, done = 0;
+       /*
+        * In order to read symbols from other namespaces perf to needs to call
+        * setns(2).  This isn't permitted if the struct_fs has multiple users.
+        * unshare(2) the fs so that we may continue to setns into namespaces
+        * that we're observing when, for instance, reading the build-ids at
+        * the end of a 'perf record' session.
+        */
+       unshare(CLONE_FS);
 
        while (!done) {
                bool got_data = false;
@@ -1881,13 +1847,13 @@ static void *perf_evlist__poll_thread(void *arg)
                        perf_evlist__poll(evlist, 1000);
 
                for (i = 0; i < evlist->nr_mmaps; i++) {
-                       struct perf_mmap *map = &evlist->mmap[i];
+                       struct mmap *map = &evlist->mmap[i];
                        union perf_event *event;
 
                        if (perf_mmap__read_init(map))
                                continue;
                        while ((event = perf_mmap__read_event(map)) != NULL) {
-                               struct perf_evsel *evsel = perf_evlist__event2evsel(evlist, event);
+                               struct evsel *evsel = perf_evlist__event2evsel(evlist, event);
 
                                if (evsel && evsel->side_band.cb)
                                        evsel->side_band.cb(event, evsel->side_band.data);
@@ -1906,10 +1872,10 @@ static void *perf_evlist__poll_thread(void *arg)
        return NULL;
 }
 
-int perf_evlist__start_sb_thread(struct perf_evlist *evlist,
+int perf_evlist__start_sb_thread(struct evlist *evlist,
                                 struct target *target)
 {
-       struct perf_evsel *counter;
+       struct evsel *counter;
 
        if (!evlist)
                return 0;
@@ -1918,16 +1884,16 @@ int perf_evlist__start_sb_thread(struct perf_evlist *evlist,
                goto out_delete_evlist;
 
        evlist__for_each_entry(evlist, counter) {
-               if (perf_evsel__open(counter, evlist->cpus,
-                                    evlist->threads) < 0)
+               if (evsel__open(counter, evlist->core.cpus,
+                                    evlist->core.threads) < 0)
                        goto out_delete_evlist;
        }
 
-       if (perf_evlist__mmap(evlist, UINT_MAX))
+       if (evlist__mmap(evlist, UINT_MAX))
                goto out_delete_evlist;
 
        evlist__for_each_entry(evlist, counter) {
-               if (perf_evsel__enable(counter))
+               if (evsel__enable(counter))
                        goto out_delete_evlist;
        }
 
@@ -1938,16 +1904,16 @@ int perf_evlist__start_sb_thread(struct perf_evlist *evlist,
        return 0;
 
 out_delete_evlist:
-       perf_evlist__delete(evlist);
+       evlist__delete(evlist);
        evlist = NULL;
        return -1;
 }
 
-void perf_evlist__stop_sb_thread(struct perf_evlist *evlist)
+void perf_evlist__stop_sb_thread(struct evlist *evlist)
 {
        if (!evlist)
                return;
        evlist->thread.done = 1;
        pthread_join(evlist->thread.th, NULL);
-       perf_evlist__delete(evlist);
+       evlist__delete(evlist);
 }