Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip into trace/tip/tracing/core-6

Conflicts:
	include/trace/ftrace.h
	kernel/trace/trace_kprobe.c

Acked-by: Masami Hiramatsu <mhiramat@redhat.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 445 insertions, 123 deletions

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index eed1cb889008..25bfca4f10f0 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -14,6 +14,16 @@ static int perf_session__open(struct perf_session *self, bool force)
 {
         struct stat input_stat;
 
+        if (!strcmp(self->filename, "-")) {
+                self->fd_pipe = true;
+                self->fd = STDIN_FILENO;
+
+                if (perf_header__read(self, self->fd) < 0)
+                        pr_err("incompatible file format");
+
+                return 0;
+        }
+
         self->fd = open(self->filename, O_RDONLY);
         if (self->fd < 0) {
                 pr_err("failed to open file: %s", self->filename);
@@ -38,7 +48,7 @@ static int perf_session__open(struct perf_session *self, bool force)
                 goto out_close;
         }
 
-        if (perf_header__read(&self->header, self->fd) < 0) {
+        if (perf_header__read(self, self->fd) < 0) {
                 pr_err("incompatible file format");
                 goto out_close;
         }
@@ -52,12 +62,21 @@ out_close:
         return -1;
 }
 
-static inline int perf_session__create_kernel_maps(struct perf_session *self)
+void perf_session__update_sample_type(struct perf_session *self)
+{
+        self->sample_type = perf_header__sample_type(&self->header);
+}
+
+int perf_session__create_kernel_maps(struct perf_session *self)
 {
-        return map_groups__create_kernel_maps(&self->kmaps, self->vmlinux_maps);
+        int ret = machine__create_kernel_maps(&self->host_machine);
+
+        if (ret >= 0)
+                ret = machines__create_guest_kernel_maps(&self->machines);
+        return ret;
 }
 
-struct perf_session *perf_session__new(const char *filename, int mode, bool force)
+struct perf_session *perf_session__new(const char *filename, int mode, bool force, bool repipe)
 {
         size_t len = filename ? strlen(filename) + 1 : 0;
         struct perf_session *self = zalloc(sizeof(*self) + len);
@@ -70,13 +89,15 @@ struct perf_session *perf_session__new(const char *filename, int mode, bool forc
 
         memcpy(self->filename, filename, len);
         self->threads = RB_ROOT;
-        self->stats_by_id = RB_ROOT;
+        self->hists_tree = RB_ROOT;
         self->last_match = NULL;
         self->mmap_window = 32;
         self->cwd = NULL;
         self->cwdlen = 0;
-        self->unknown_events = 0;
-        map_groups__init(&self->kmaps);
+        self->machines = RB_ROOT;
+        self->repipe = repipe;
+        INIT_LIST_HEAD(&self->ordered_samples.samples_head);
+        machine__init(&self->host_machine, "", HOST_KERNEL_ID);
 
         if (mode == O_RDONLY) {
                 if (perf_session__open(self, force) < 0)
@@ -90,7 +111,7 @@ struct perf_session *perf_session__new(const char *filename, int mode, bool forc
                         goto out_delete;
         }
 
-        self->sample_type = perf_header__sample_type(&self->header);
+        perf_session__update_sample_type(self);
 out:
         return self;
 out_free:
@@ -117,22 +138,17 @@ static bool symbol__match_parent_regex(struct symbol *sym)
         return 0;
 }
 
-struct symbol **perf_session__resolve_callchain(struct perf_session *self,
-                                                struct thread *thread,
-                                                struct ip_callchain *chain,
-                                                struct symbol **parent)
+struct map_symbol *perf_session__resolve_callchain(struct perf_session *self,
+                                                   struct thread *thread,
+                                                   struct ip_callchain *chain,
+                                                   struct symbol **parent)
 {
         u8 cpumode = PERF_RECORD_MISC_USER;
-        struct symbol **syms = NULL;
         unsigned int i;
+        struct map_symbol *syms = calloc(chain->nr, sizeof(*syms));
 
-        if (symbol_conf.use_callchain) {
-                syms = calloc(chain->nr, sizeof(*syms));
-                if (!syms) {
-                        fprintf(stderr, "Can't allocate memory for symbols\n");
-                        exit(-1);
-                }
-        }
+        if (!syms)
+                return NULL;
 
         for (i = 0; i < chain->nr; i++) {
                 u64 ip = chain->ips[i];
@@ -152,15 +168,17 @@ struct symbol **perf_session__resolve_callchain(struct perf_session *self,
                         continue;
                 }
 
+                al.filtered = false;
                 thread__find_addr_location(thread, self, cpumode,
-                                           MAP__FUNCTION, ip, &al, NULL);
+                                MAP__FUNCTION, thread->pid, ip, &al, NULL);
                 if (al.sym != NULL) {
                         if (sort__has_parent && !*parent &&
                             symbol__match_parent_regex(al.sym))
                                 *parent = al.sym;
                         if (!symbol_conf.use_callchain)
                                 break;
-                        syms[i] = al.sym;
+                        syms[i].map = al.map;
+                        syms[i].sym = al.sym;
                 }
         }
 
@@ -174,6 +192,18 @@ static int process_event_stub(event_t *event __used,
         return 0;
 }
 
+static int process_finished_round_stub(event_t *event __used,
+                                       struct perf_session *session __used,
+                                       struct perf_event_ops *ops __used)
+{
+        dump_printf(": unhandled!\n");
+        return 0;
+}
+
+static int process_finished_round(event_t *event,
+                                  struct perf_session *session,
+                                  struct perf_event_ops *ops);
+
 static void perf_event_ops__fill_defaults(struct perf_event_ops *handler)
 {
         if (handler->sample == NULL)
@@ -194,29 +224,20 @@ static void perf_event_ops__fill_defaults(struct perf_event_ops *handler)
                 handler->throttle = process_event_stub;
         if (handler->unthrottle == NULL)
                 handler->unthrottle = process_event_stub;
-}
-
-static const char *event__name[] = {
-        [0]                      = "TOTAL",
-        [PERF_RECORD_MMAP]       = "MMAP",
-        [PERF_RECORD_LOST]       = "LOST",
-        [PERF_RECORD_COMM]       = "COMM",
-        [PERF_RECORD_EXIT]       = "EXIT",
-        [PERF_RECORD_THROTTLE]   = "THROTTLE",
-        [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE",
-        [PERF_RECORD_FORK]       = "FORK",
-        [PERF_RECORD_READ]       = "READ",
-        [PERF_RECORD_SAMPLE]     = "SAMPLE",
-};
-
-unsigned long event__total[PERF_RECORD_MAX];
-
-void event__print_totals(void)
-{
-        int i;
-        for (i = 0; i < PERF_RECORD_MAX; ++i)
-                pr_info("%10s events: %10ld\n",
-                        event__name[i], event__total[i]);
+        if (handler->attr == NULL)
+                handler->attr = process_event_stub;
+        if (handler->event_type == NULL)
+                handler->event_type = process_event_stub;
+        if (handler->tracing_data == NULL)
+                handler->tracing_data = process_event_stub;
+        if (handler->build_id == NULL)
+                handler->build_id = process_event_stub;
+        if (handler->finished_round == NULL) {
+                if (handler->ordered_samples)
+                        handler->finished_round = process_finished_round;
+                else
+                        handler->finished_round = process_finished_round_stub;
+        }
 }
 
 void mem_bswap_64(void *src, int byte_size)
@@ -270,6 +291,37 @@ static void event__read_swap(event_t *self)
         self->read.id           = bswap_64(self->read.id);
 }
 
+static void event__attr_swap(event_t *self)
+{
+        size_t size;
+
+        self->attr.attr.type            = bswap_32(self->attr.attr.type);
+        self->attr.attr.size            = bswap_32(self->attr.attr.size);
+        self->attr.attr.config          = bswap_64(self->attr.attr.config);
+        self->attr.attr.sample_period   = bswap_64(self->attr.attr.sample_period);
+        self->attr.attr.sample_type     = bswap_64(self->attr.attr.sample_type);
+        self->attr.attr.read_format     = bswap_64(self->attr.attr.read_format);
+        self->attr.attr.wakeup_events   = bswap_32(self->attr.attr.wakeup_events);
+        self->attr.attr.bp_type         = bswap_32(self->attr.attr.bp_type);
+        self->attr.attr.bp_addr         = bswap_64(self->attr.attr.bp_addr);
+        self->attr.attr.bp_len          = bswap_64(self->attr.attr.bp_len);
+
+        size = self->header.size;
+        size -= (void *)&self->attr.id - (void *)self;
+        mem_bswap_64(self->attr.id, size);
+}
+
+static void event__event_type_swap(event_t *self)
+{
+        self->event_type.event_type.event_id =
+                bswap_64(self->event_type.event_type.event_id);
+}
+
+static void event__tracing_data_swap(event_t *self)
+{
+        self->tracing_data.size = bswap_32(self->tracing_data.size);
+}
+
 typedef void (*event__swap_op)(event_t *self);
 
 static event__swap_op event__swap_ops[] = {
@@ -280,9 +332,212 @@ static event__swap_op event__swap_ops[] = {
         [PERF_RECORD_LOST]   = event__all64_swap,
         [PERF_RECORD_READ]   = event__read_swap,
         [PERF_RECORD_SAMPLE] = event__all64_swap,
-        [PERF_RECORD_MAX]    = NULL,
+        [PERF_RECORD_HEADER_ATTR]   = event__attr_swap,
+        [PERF_RECORD_HEADER_EVENT_TYPE]   = event__event_type_swap,
+        [PERF_RECORD_HEADER_TRACING_DATA]   = event__tracing_data_swap,
+        [PERF_RECORD_HEADER_BUILD_ID]   = NULL,
+        [PERF_RECORD_HEADER_MAX]    = NULL,
 };
 
+struct sample_queue {
+        u64                     timestamp;
+        struct sample_event     *event;
+        struct list_head        list;
+};
+
+static void flush_sample_queue(struct perf_session *s,
+                               struct perf_event_ops *ops)
+{
+        struct list_head *head = &s->ordered_samples.samples_head;
+        u64 limit = s->ordered_samples.next_flush;
+        struct sample_queue *tmp, *iter;
+
+        if (!ops->ordered_samples || !limit)
+                return;
+
+        list_for_each_entry_safe(iter, tmp, head, list) {
+                if (iter->timestamp > limit)
+                        return;
+
+                if (iter == s->ordered_samples.last_inserted)
+                        s->ordered_samples.last_inserted = NULL;
+
+                ops->sample((event_t *)iter->event, s);
+
+                s->ordered_samples.last_flush = iter->timestamp;
+                list_del(&iter->list);
+                free(iter->event);
+                free(iter);
+        }
+}
+
+/*
+ * When perf record finishes a pass on every buffers, it records this pseudo
+ * event.
+ * We record the max timestamp t found in the pass n.
+ * Assuming these timestamps are monotonic across cpus, we know that if
+ * a buffer still has events with timestamps below t, they will be all
+ * available and then read in the pass n + 1.
+ * Hence when we start to read the pass n + 2, we can safely flush every
+ * events with timestamps below t.
+ *
+ *    ============ PASS n =================
+ *       CPU 0         |   CPU 1
+ *                     |
+ *    cnt1 timestamps  |   cnt2 timestamps
+ *          1          |         2
+ *          2          |         3
+ *          -          |         4  <--- max recorded
+ *
+ *    ============ PASS n + 1 ==============
+ *       CPU 0         |   CPU 1
+ *                     |
+ *    cnt1 timestamps  |   cnt2 timestamps
+ *          3          |         5
+ *          4          |         6
+ *          5          |         7 <---- max recorded
+ *
+ *      Flush every events below timestamp 4
+ *
+ *    ============ PASS n + 2 ==============
+ *       CPU 0         |   CPU 1
+ *                     |
+ *    cnt1 timestamps  |   cnt2 timestamps
+ *          6          |         8
+ *          7          |         9
+ *          -          |         10
+ *
+ *      Flush every events below timestamp 7
+ *      etc...
+ */
+static int process_finished_round(event_t *event __used,
+                                  struct perf_session *session,
+                                  struct perf_event_ops *ops)
+{
+        flush_sample_queue(session, ops);
+        session->ordered_samples.next_flush = session->ordered_samples.max_timestamp;
+
+        return 0;
+}
+
+static void __queue_sample_end(struct sample_queue *new, struct list_head *head)
+{
+        struct sample_queue *iter;
+
+        list_for_each_entry_reverse(iter, head, list) {
+                if (iter->timestamp < new->timestamp) {
+                        list_add(&new->list, &iter->list);
+                        return;
+                }
+        }
+
+        list_add(&new->list, head);
+}
+
+static void __queue_sample_before(struct sample_queue *new,
+                                  struct sample_queue *iter,
+                                  struct list_head *head)
+{
+        list_for_each_entry_continue_reverse(iter, head, list) {
+                if (iter->timestamp < new->timestamp) {
+                        list_add(&new->list, &iter->list);
+                        return;
+                }
+        }
+
+        list_add(&new->list, head);
+}
+
+static void __queue_sample_after(struct sample_queue *new,
+                                 struct sample_queue *iter,
+                                 struct list_head *head)
+{
+        list_for_each_entry_continue(iter, head, list) {
+                if (iter->timestamp > new->timestamp) {
+                        list_add_tail(&new->list, &iter->list);
+                        return;
+                }
+        }
+        list_add_tail(&new->list, head);
+}
+
+/* The queue is ordered by time */
+static void __queue_sample_event(struct sample_queue *new,
+                                 struct perf_session *s)
+{
+        struct sample_queue *last_inserted = s->ordered_samples.last_inserted;
+        struct list_head *head = &s->ordered_samples.samples_head;
+
+
+        if (!last_inserted) {
+                __queue_sample_end(new, head);
+                return;
+        }
+
+        /*
+         * Most of the time the current event has a timestamp
+         * very close to the last event inserted, unless we just switched
+         * to another event buffer. Having a sorting based on a list and
+         * on the last inserted event that is close to the current one is
+         * probably more efficient than an rbtree based sorting.
+         */
+        if (last_inserted->timestamp >= new->timestamp)
+                __queue_sample_before(new, last_inserted, head);
+        else
+                __queue_sample_after(new, last_inserted, head);
+}
+
+static int queue_sample_event(event_t *event, struct sample_data *data,
+                              struct perf_session *s)
+{
+        u64 timestamp = data->time;
+        struct sample_queue *new;
+
+
+        if (timestamp < s->ordered_samples.last_flush) {
+                printf("Warning: Timestamp below last timeslice flush\n");
+                return -EINVAL;
+        }
+
+        new = malloc(sizeof(*new));
+        if (!new)
+                return -ENOMEM;
+
+        new->timestamp = timestamp;
+
+        new->event = malloc(event->header.size);
+        if (!new->event) {
+                free(new);
+                return -ENOMEM;
+        }
+
+        memcpy(new->event, event, event->header.size);
+
+        __queue_sample_event(new, s);
+        s->ordered_samples.last_inserted = new;
+
+        if (new->timestamp > s->ordered_samples.max_timestamp)
+                s->ordered_samples.max_timestamp = new->timestamp;
+
+        return 0;
+}
+
+static int perf_session__process_sample(event_t *event, struct perf_session *s,
+                                        struct perf_event_ops *ops)
+{
+        struct sample_data data;
+
+        if (!ops->ordered_samples)
+                return ops->sample(event, s);
+
+        bzero(&data, sizeof(struct sample_data));
+        event__parse_sample(event, s->sample_type, &data);
+
+        queue_sample_event(event, &data, s);
+
+        return 0;
+}
+
 static int perf_session__process_event(struct perf_session *self,
                                        event_t *event,
                                        struct perf_event_ops *ops,
@@ -290,12 +545,11 @@ static int perf_session__process_event(struct perf_session *self,
 {
         trace_event(event);
 
-        if (event->header.type < PERF_RECORD_MAX) {
+        if (event->header.type < PERF_RECORD_HEADER_MAX) {
                 dump_printf("%#Lx [%#x]: PERF_RECORD_%s",
                             offset + head, event->header.size,
                             event__name[event->header.type]);
-                ++event__total[0];
-                ++event__total[event->header.type];
+                hists__inc_nr_events(&self->hists, event->header.type);
         }
 
         if (self->header.needs_swap && event__swap_ops[event->header.type])
@@ -303,7 +557,7 @@ static int perf_session__process_event(struct perf_session *self,
 
         switch (event->header.type) {
         case PERF_RECORD_SAMPLE:
-                return ops->sample(event, self);
+                return perf_session__process_sample(event, self, ops);
         case PERF_RECORD_MMAP:
                 return ops->mmap(event, self);
         case PERF_RECORD_COMM:
@@ -320,8 +574,20 @@ static int perf_session__process_event(struct perf_session *self,
                 return ops->throttle(event, self);
         case PERF_RECORD_UNTHROTTLE:
                 return ops->unthrottle(event, self);
+        case PERF_RECORD_HEADER_ATTR:
+                return ops->attr(event, self);
+        case PERF_RECORD_HEADER_EVENT_TYPE:
+                return ops->event_type(event, self);
+        case PERF_RECORD_HEADER_TRACING_DATA:
+                /* setup for reading amidst mmap */
+                lseek(self->fd, offset + head, SEEK_SET);
+                return ops->tracing_data(event, self);
+        case PERF_RECORD_HEADER_BUILD_ID:
+                return ops->build_id(event, self);
+        case PERF_RECORD_FINISHED_ROUND:
+                return ops->finished_round(event, self, ops);
         default:
-                self->unknown_events++;
+                ++self->hists.stats.nr_unknown_events;
                 return -1;
         }
 }
@@ -333,56 +599,114 @@ void perf_event_header__bswap(struct perf_event_header *self)
         self->size = bswap_16(self->size);
 }
 
-int perf_header__read_build_ids(struct perf_header *self,
-                                int input, u64 offset, u64 size)
+static struct thread *perf_session__register_idle_thread(struct perf_session *self)
 {
-        struct build_id_event bev;
-        char filename[PATH_MAX];
-        u64 limit = offset + size;
-        int err = -1;
-
-        while (offset < limit) {
-                struct dso *dso;
-                ssize_t len;
-                struct list_head *head = &dsos__user;
+        struct thread *thread = perf_session__findnew(self, 0);
 
-                if (read(input, &bev, sizeof(bev)) != sizeof(bev))
-                        goto out;
+        if (thread == NULL || thread__set_comm(thread, "swapper")) {
+                pr_err("problem inserting idle task.\n");
+                thread = NULL;
+        }
 
-                if (self->needs_swap)
-                        perf_event_header__bswap(&bev.header);
+        return thread;
+}
 
-                len = bev.header.size - sizeof(bev);
-                if (read(input, filename, len) != len)
-                        goto out;
+int do_read(int fd, void *buf, size_t size)
+{
+        void *buf_start = buf;
 
-                if (bev.header.misc & PERF_RECORD_MISC_KERNEL)
-                        head = &dsos__kernel;
+        while (size) {
+                int ret = read(fd, buf, size);
 
-                dso = __dsos__findnew(head, filename);
-                if (dso != NULL) {
-                        dso__set_build_id(dso, &bev.build_id);
-                        if (head == &dsos__kernel && filename[0] == '[')
-                                dso->kernel = 1;
-                }
+                if (ret <= 0)
+                        return ret;
 
-                offset += bev.header.size;
+                size -= ret;
+                buf += ret;
         }
-        err = 0;
-out:
-        return err;
+
+        return buf - buf_start;
 }
 
-static struct thread *perf_session__register_idle_thread(struct perf_session *self)
+#define session_done()  (*(volatile int *)(&session_done))
+volatile int session_done;
+
+static int __perf_session__process_pipe_events(struct perf_session *self,
+                                               struct perf_event_ops *ops)
 {
-        struct thread *thread = perf_session__findnew(self, 0);
+        event_t event;
+        uint32_t size;
+        int skip = 0;
+        u64 head;
+        int err;
+        void *p;
 
-        if (thread == NULL || thread__set_comm(thread, "swapper")) {
-                pr_err("problem inserting idle task.\n");
-                thread = NULL;
+        perf_event_ops__fill_defaults(ops);
+
+        head = 0;
+more:
+        err = do_read(self->fd, &event, sizeof(struct perf_event_header));
+        if (err <= 0) {
+                if (err == 0)
+                        goto done;
+
+                pr_err("failed to read event header\n");
+                goto out_err;
         }
 
-        return thread;
+        if (self->header.needs_swap)
+                perf_event_header__bswap(&event.header);
+
+        size = event.header.size;
+        if (size == 0)
+                size = 8;
+
+        p = &event;
+        p += sizeof(struct perf_event_header);
+
+        if (size - sizeof(struct perf_event_header)) {
+                err = do_read(self->fd, p,
+                              size - sizeof(struct perf_event_header));
+                if (err <= 0) {
+                        if (err == 0) {
+                                pr_err("unexpected end of event stream\n");
+                                goto done;
+                        }
+
+                        pr_err("failed to read event data\n");
+                        goto out_err;
+                }
+        }
+
+        if (size == 0 ||
+            (skip = perf_session__process_event(self, &event, ops,
+                                                0, head)) < 0) {
+                dump_printf("%#Lx [%#x]: skipping unknown header type: %d\n",
+                            head, event.header.size, event.header.type);
+                /*
+                 * assume we lost track of the stream, check alignment, and
+                 * increment a single u64 in the hope to catch on again 'soon'.
+                 */
+                if (unlikely(head & 7))
+                        head &= ~7ULL;
+
+                size = 8;
+        }
+
+        head += size;
+
+        dump_printf("\n%#Lx [%#x]: event: %d\n",
+                    head, event.header.size, event.header.type);
+
+        if (skip > 0)
+                head += skip;
+
+        if (!session_done())
+                goto more;
+done:
+        err = 0;
+out_err:
+        return err;
 }
 
 int __perf_session__process_events(struct perf_session *self,
@@ -396,6 +720,10 @@ int __perf_session__process_events(struct perf_session *self,
         event_t *event;
         uint32_t size;
         char *buf;
+        struct ui_progress *progress = ui_progress__new("Processing events...",
+                                                        self->size);
+        if (progress == NULL)
+                return -1;
 
         perf_event_ops__fill_defaults(ops);
 
@@ -424,6 +752,7 @@ remap:
 
 more:
         event = (event_t *)(buf + head);
+        ui_progress__update(progress, offset);
 
         if (self->header.needs_swap)
                 perf_event_header__bswap(&event->header);
@@ -473,7 +802,11 @@ more:
                 goto more;
 done:
         err = 0;
+        /* do the final flush for ordered samples */
+        self->ordered_samples.next_flush = ULLONG_MAX;
+        flush_sample_queue(self, ops);
 out_err:
+        ui_progress__delete(progress);
         return err;
 }
 
@@ -502,9 +835,13 @@ out_getcwd_err:
                 self->cwdlen = strlen(self->cwd);
         }
 
-        err = __perf_session__process_events(self, self->header.data_offset,
-                                             self->header.data_size,
-                                             self->size, ops);
+        if (!self->fd_pipe)
+                err = __perf_session__process_events(self,
+                                                     self->header.data_offset,
+                                                     self->header.data_size,
+                                                     self->size, ops);
+        else
+                err = __perf_session__process_pipe_events(self, ops);
 out_err:
         return err;
 }
@@ -519,56 +856,41 @@ bool perf_session__has_traces(struct perf_session *self, const char *msg)
         return true;
 }
 
-int perf_session__set_kallsyms_ref_reloc_sym(struct perf_session *self,
+int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
                                              const char *symbol_name,
                                              u64 addr)
 {
         char *bracket;
         enum map_type i;
+        struct ref_reloc_sym *ref;
 
-        self->ref_reloc_sym.name = strdup(symbol_name);
-        if (self->ref_reloc_sym.name == NULL)
+        ref = zalloc(sizeof(struct ref_reloc_sym));
+        if (ref == NULL)
                 return -ENOMEM;
 
-        bracket = strchr(self->ref_reloc_sym.name, ']');
+        ref->name = strdup(symbol_name);
+        if (ref->name == NULL) {
+                free(ref);
+                return -ENOMEM;
+        }
+
+        bracket = strchr(ref->name, ']');
         if (bracket)
                 *bracket = '\0';
 
-        self->ref_reloc_sym.addr = addr;
+        ref->addr = addr;
 
         for (i = 0; i < MAP__NR_TYPES; ++i) {
-                struct kmap *kmap = map__kmap(self->vmlinux_maps[i]);
-                kmap->ref_reloc_sym = &self->ref_reloc_sym;
+                struct kmap *kmap = map__kmap(maps[i]);
+                kmap->ref_reloc_sym = ref;
         }
 
         return 0;
 }
 
-static u64 map__reloc_map_ip(struct map *map, u64 ip)
-{
-        return ip + (s64)map->pgoff;
-}
-
-static u64 map__reloc_unmap_ip(struct map *map, u64 ip)
-{
-        return ip - (s64)map->pgoff;
-}
-
-void map__reloc_vmlinux(struct map *self)
+size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp)
 {
-        struct kmap *kmap = map__kmap(self);
-        s64 reloc;
-
-        if (!kmap->ref_reloc_sym || !kmap->ref_reloc_sym->unrelocated_addr)
-                return;
-
-        reloc = (kmap->ref_reloc_sym->unrelocated_addr -
-                 kmap->ref_reloc_sym->addr);
-
-        if (!reloc)
-                return;
-
-        self->map_ip   = map__reloc_map_ip;
-        self->unmap_ip = map__reloc_unmap_ip;
-        self->pgoff    = reloc;
+        return __dsos__fprintf(&self->host_machine.kernel_dsos, fp) +
+               __dsos__fprintf(&self->host_machine.user_dsos, fp) +
+               machines__fprintf_dsos(&self->machines, fp);
 }