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authorArnaldo Carvalho de Melo <acme@redhat.com>2010-03-26 12:11:06 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2010-04-02 16:27:39 -0300
commitc6e718ff8cdcf5e7855077687720b37c4a07650a (patch)
treed5cf4c9b8569fe4138daf7727af5aee7e1fd1cf0 /tools/perf/util/map.c
parent11164cd4f6dab326a88bdf27f2f8f7c11977e91a (diff)
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perf symbols: Move more map_groups methods to map.c
While writing a standalone test app that uses the symbol system to find kernel space symbols I noticed these also need to be moved. Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/map.c')
-rw-r--r--tools/perf/util/map.c168
1 files changed, 168 insertions, 0 deletions
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 9f2963f9ee9..e21f9800173 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -1,4 +1,5 @@
#include "symbol.h"
+#include <errno.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
@@ -234,6 +235,37 @@ u64 map__objdump_2ip(struct map *map, u64 addr)
return ip;
}
+void map_groups__init(struct map_groups *self)
+{
+ int i;
+ for (i = 0; i < MAP__NR_TYPES; ++i) {
+ self->maps[i] = RB_ROOT;
+ INIT_LIST_HEAD(&self->removed_maps[i]);
+ }
+}
+
+void map_groups__flush(struct map_groups *self)
+{
+ int type;
+
+ for (type = 0; type < MAP__NR_TYPES; type++) {
+ struct rb_root *root = &self->maps[type];
+ struct rb_node *next = rb_first(root);
+
+ while (next) {
+ struct map *pos = rb_entry(next, struct map, rb_node);
+ next = rb_next(&pos->rb_node);
+ rb_erase(&pos->rb_node, root);
+ /*
+ * We may have references to this map, for
+ * instance in some hist_entry instances, so
+ * just move them to a separate list.
+ */
+ list_add_tail(&pos->node, &self->removed_maps[pos->type]);
+ }
+ }
+}
+
struct symbol *map_groups__find_symbol(struct map_groups *self,
enum map_type type, u64 addr,
symbol_filter_t filter)
@@ -246,6 +278,142 @@ struct symbol *map_groups__find_symbol(struct map_groups *self,
return NULL;
}
+size_t __map_groups__fprintf_maps(struct map_groups *self,
+ enum map_type type, int verbose, FILE *fp)
+{
+ size_t printed = fprintf(fp, "%s:\n", map_type__name[type]);
+ struct rb_node *nd;
+
+ for (nd = rb_first(&self->maps[type]); nd; nd = rb_next(nd)) {
+ struct map *pos = rb_entry(nd, struct map, rb_node);
+ printed += fprintf(fp, "Map:");
+ printed += map__fprintf(pos, fp);
+ if (verbose > 2) {
+ printed += dso__fprintf(pos->dso, type, fp);
+ printed += fprintf(fp, "--\n");
+ }
+ }
+
+ return printed;
+}
+
+size_t map_groups__fprintf_maps(struct map_groups *self, int verbose, FILE *fp)
+{
+ size_t printed = 0, i;
+ for (i = 0; i < MAP__NR_TYPES; ++i)
+ printed += __map_groups__fprintf_maps(self, i, verbose, fp);
+ return printed;
+}
+
+static size_t __map_groups__fprintf_removed_maps(struct map_groups *self,
+ enum map_type type,
+ int verbose, FILE *fp)
+{
+ struct map *pos;
+ size_t printed = 0;
+
+ list_for_each_entry(pos, &self->removed_maps[type], node) {
+ printed += fprintf(fp, "Map:");
+ printed += map__fprintf(pos, fp);
+ if (verbose > 1) {
+ printed += dso__fprintf(pos->dso, type, fp);
+ printed += fprintf(fp, "--\n");
+ }
+ }
+ return printed;
+}
+
+static size_t map_groups__fprintf_removed_maps(struct map_groups *self,
+ int verbose, FILE *fp)
+{
+ size_t printed = 0, i;
+ for (i = 0; i < MAP__NR_TYPES; ++i)
+ printed += __map_groups__fprintf_removed_maps(self, i, verbose, fp);
+ return printed;
+}
+
+size_t map_groups__fprintf(struct map_groups *self, int verbose, FILE *fp)
+{
+ size_t printed = map_groups__fprintf_maps(self, verbose, fp);
+ printed += fprintf(fp, "Removed maps:\n");
+ return printed + map_groups__fprintf_removed_maps(self, verbose, fp);
+}
+
+int map_groups__fixup_overlappings(struct map_groups *self, struct map *map,
+ int verbose, FILE *fp)
+{
+ struct rb_root *root = &self->maps[map->type];
+ struct rb_node *next = rb_first(root);
+
+ while (next) {
+ struct map *pos = rb_entry(next, struct map, rb_node);
+ next = rb_next(&pos->rb_node);
+
+ if (!map__overlap(pos, map))
+ continue;
+
+ if (verbose >= 2) {
+ fputs("overlapping maps:\n", fp);
+ map__fprintf(map, fp);
+ map__fprintf(pos, fp);
+ }
+
+ rb_erase(&pos->rb_node, root);
+ /*
+ * We may have references to this map, for instance in some
+ * hist_entry instances, so just move them to a separate
+ * list.
+ */
+ list_add_tail(&pos->node, &self->removed_maps[map->type]);
+ /*
+ * Now check if we need to create new maps for areas not
+ * overlapped by the new map:
+ */
+ if (map->start > pos->start) {
+ struct map *before = map__clone(pos);
+
+ if (before == NULL)
+ return -ENOMEM;
+
+ before->end = map->start - 1;
+ map_groups__insert(self, before);
+ if (verbose >= 2)
+ map__fprintf(before, fp);
+ }
+
+ if (map->end < pos->end) {
+ struct map *after = map__clone(pos);
+
+ if (after == NULL)
+ return -ENOMEM;
+
+ after->start = map->end + 1;
+ map_groups__insert(self, after);
+ if (verbose >= 2)
+ map__fprintf(after, fp);
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * XXX This should not really _copy_ te maps, but refcount them.
+ */
+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)) {
+ struct map *map = rb_entry(nd, struct map, rb_node);
+ struct map *new = map__clone(map);
+ if (new == NULL)
+ return -ENOMEM;
+ map_groups__insert(self, new);
+ }
+ return 0;
+}
+
static u64 map__reloc_map_ip(struct map *map, u64 ip)
{
return ip + (s64)map->pgoff;