Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
[platform/kernel/linux-starfive.git] / tools / perf / util / thread.c
index 603f561..4a08dcf 100644 (file)
@@ -2,18 +2,14 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include "session.h"
 #include "thread.h"
 #include "util.h"
 #include "debug.h"
 
-static struct rb_root threads;
-static struct thread *last_match;
-
-void thread__init(struct thread *self, pid_t pid)
+void map_groups__init(struct map_groups *self)
 {
        int i;
-       self->pid = pid;
-       self->comm = NULL;
        for (i = 0; i < MAP__NR_TYPES; ++i) {
                self->maps[i] = RB_ROOT;
                INIT_LIST_HEAD(&self->removed_maps[i]);
@@ -25,7 +21,8 @@ static struct thread *thread__new(pid_t pid)
        struct thread *self = zalloc(sizeof(*self));
 
        if (self != NULL) {
-               thread__init(self, pid);
+               map_groups__init(&self->mg);
+               self->pid = pid;
                self->comm = malloc(32);
                if (self->comm)
                        snprintf(self->comm, 32, ":%d", self->pid);
@@ -55,10 +52,11 @@ int thread__comm_len(struct thread *self)
 
 static const char *map_type__name[MAP__NR_TYPES] = {
        [MAP__FUNCTION] = "Functions",
+       [MAP__VARIABLE] = "Variables",
 };
 
-static size_t __thread__fprintf_maps(struct thread *self,
-                                    enum map_type type, FILE *fp)
+static size_t __map_groups__fprintf_maps(struct map_groups *self,
+                                        enum map_type type, FILE *fp)
 {
        size_t printed = fprintf(fp, "%s:\n", map_type__name[type]);
        struct rb_node *nd;
@@ -76,16 +74,16 @@ static size_t __thread__fprintf_maps(struct thread *self,
        return printed;
 }
 
-size_t thread__fprintf_maps(struct thread *self, FILE *fp)
+size_t map_groups__fprintf_maps(struct map_groups *self, FILE *fp)
 {
        size_t printed = 0, i;
        for (i = 0; i < MAP__NR_TYPES; ++i)
-               printed += __thread__fprintf_maps(self, i, fp);
+               printed += __map_groups__fprintf_maps(self, i, fp);
        return printed;
 }
 
-static size_t __thread__fprintf_removed_maps(struct thread *self,
-                                            enum map_type type, FILE *fp)
+static size_t __map_groups__fprintf_removed_maps(struct map_groups *self,
+                                                enum map_type type, FILE *fp)
 {
        struct map *pos;
        size_t printed = 0;
@@ -101,25 +99,30 @@ static size_t __thread__fprintf_removed_maps(struct thread *self,
        return printed;
 }
 
-static size_t thread__fprintf_removed_maps(struct thread *self, FILE *fp)
+static size_t map_groups__fprintf_removed_maps(struct map_groups *self, FILE *fp)
 {
        size_t printed = 0, i;
        for (i = 0; i < MAP__NR_TYPES; ++i)
-               printed += __thread__fprintf_removed_maps(self, i, fp);
+               printed += __map_groups__fprintf_removed_maps(self, i, fp);
        return printed;
 }
 
-static size_t thread__fprintf(struct thread *self, FILE *fp)
+static size_t map_groups__fprintf(struct map_groups *self, FILE *fp)
 {
-       size_t printed = fprintf(fp, "Thread %d %s\n", self->pid, self->comm);
-       printed += thread__fprintf_removed_maps(self, fp);
+       size_t printed = map_groups__fprintf_maps(self, fp);
        printed += fprintf(fp, "Removed maps:\n");
-       return printed + thread__fprintf_removed_maps(self, fp);
+       return printed + map_groups__fprintf_removed_maps(self, fp);
+}
+
+static size_t thread__fprintf(struct thread *self, FILE *fp)
+{
+       return fprintf(fp, "Thread %d %s\n", self->pid, self->comm) +
+              map_groups__fprintf(&self->mg, fp);
 }
 
-struct thread *threads__findnew(pid_t pid)
+struct thread *perf_session__findnew(struct perf_session *self, pid_t pid)
 {
-       struct rb_node **p = &threads.rb_node;
+       struct rb_node **p = &self->threads.rb_node;
        struct rb_node *parent = NULL;
        struct thread *th;
 
@@ -128,15 +131,15 @@ struct thread *threads__findnew(pid_t pid)
         * so most of the time we dont have to look up
         * the full rbtree:
         */
-       if (last_match && last_match->pid == pid)
-               return last_match;
+       if (self->last_match && self->last_match->pid == pid)
+               return self->last_match;
 
        while (*p != NULL) {
                parent = *p;
                th = rb_entry(parent, struct thread, rb_node);
 
                if (th->pid == pid) {
-                       last_match = th;
+                       self->last_match = th;
                        return th;
                }
 
@@ -149,26 +152,15 @@ struct thread *threads__findnew(pid_t pid)
        th = thread__new(pid);
        if (th != NULL) {
                rb_link_node(&th->rb_node, parent, p);
-               rb_insert_color(&th->rb_node, &threads);
-               last_match = th;
+               rb_insert_color(&th->rb_node, &self->threads);
+               self->last_match = th;
        }
 
        return th;
 }
 
-struct thread *register_idle_thread(void)
-{
-       struct thread *thread = threads__findnew(0);
-
-       if (!thread || thread__set_comm(thread, "swapper")) {
-               fprintf(stderr, "problem inserting idle task.\n");
-               exit(-1);
-       }
-
-       return thread;
-}
-
-static void thread__remove_overlappings(struct thread *self, struct map *map)
+static void map_groups__remove_overlappings(struct map_groups *self,
+                                           struct map *map)
 {
        struct rb_root *root = &self->maps[map->type];
        struct rb_node *next = rb_first(root);
@@ -238,12 +230,15 @@ struct map *maps__find(struct rb_root *maps, u64 ip)
 
 void thread__insert_map(struct thread *self, struct map *map)
 {
-       thread__remove_overlappings(self, map);
-       maps__insert(&self->maps[map->type], map);
+       map_groups__remove_overlappings(&self->mg, map);
+       map_groups__insert(&self->mg, map);
 }
 
-static int thread__clone_maps(struct thread *self, struct thread *parent,
-                             enum map_type type)
+/*
+ * XXX This should not really _copy_ te maps, but refcount them.
+ */
+static int map_groups__clone(struct map_groups *self,
+                            struct map_groups *parent, enum map_type type)
 {
        struct rb_node *nd;
        for (nd = rb_first(&parent->maps[type]); nd; nd = rb_next(nd)) {
@@ -251,7 +246,7 @@ static int thread__clone_maps(struct thread *self, struct thread *parent,
                struct map *new = map__clone(map);
                if (new == NULL)
                        return -ENOMEM;
-               thread__insert_map(self, new);
+               map_groups__insert(self, new);
        }
        return 0;
 }
@@ -267,17 +262,17 @@ int thread__fork(struct thread *self, struct thread *parent)
                return -ENOMEM;
 
        for (i = 0; i < MAP__NR_TYPES; ++i)
-               if (thread__clone_maps(self, parent, i) < 0)
+               if (map_groups__clone(&self->mg, &parent->mg, i) < 0)
                        return -ENOMEM;
        return 0;
 }
 
-size_t threads__fprintf(FILE *fp)
+size_t perf_session__fprintf(struct perf_session *self, FILE *fp)
 {
        size_t ret = 0;
        struct rb_node *nd;
 
-       for (nd = rb_first(&threads); nd; nd = rb_next(nd)) {
+       for (nd = rb_first(&self->threads); nd; nd = rb_next(nd)) {
                struct thread *pos = rb_entry(nd, struct thread, rb_node);
 
                ret += thread__fprintf(pos, fp);
@@ -286,14 +281,15 @@ size_t threads__fprintf(FILE *fp)
        return ret;
 }
 
-struct symbol *thread__find_symbol(struct thread *self,
-                                  enum map_type type, u64 addr,
-                                  symbol_filter_t filter)
+struct symbol *map_groups__find_symbol(struct map_groups *self,
+                                      struct perf_session *session,
+                                      enum map_type type, u64 addr,
+                                      symbol_filter_t filter)
 {
-       struct map *map = thread__find_map(self, type, addr);
+       struct map *map = map_groups__find(self, type, addr);
 
        if (map != NULL)
-               return map__find_symbol(map, map->map_ip(map, addr), filter);
+               return map__find_symbol(map, session, map->map_ip(map, addr), filter);
 
        return NULL;
 }