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Subject[PATCH 08/12] perf symbols: kernel_maps should be an array of MAP__NR_TYPES entries
Date
From: Arnaldo Carvalho de Melo <acme@redhat.com>

So that we can support multiple symbol table types.

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>
---
tools/perf/util/symbol.c | 51 ++++++++++++++++++++++++++++++++++-----------
tools/perf/util/thread.h | 1 -
2 files changed, 38 insertions(+), 14 deletions(-)
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 956656f..581db4c 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -29,6 +29,7 @@ enum dso_origin {
};

static void dsos__add(struct list_head *head, struct dso *dso);
+static struct map *kernel_maps__find_by_dso_name(const char *name);
static struct map *map__new2(u64 start, struct dso *dso, enum map_type type);
static void kernel_maps__insert(struct map *map);
struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr);
@@ -43,7 +44,7 @@ static struct symbol_conf symbol_conf__defaults = {
.try_vmlinux_path = true,
};

-static struct rb_root kernel_maps__functions;
+static struct rb_root kernel_maps[MAP__NR_TYPES];

bool dso__loaded(const struct dso *self, enum map_type type)
{
@@ -78,10 +79,10 @@ static void symbols__fixup_end(struct rb_root *self)
curr->end = roundup(curr->start, 4096);
}

-static void kernel_maps__fixup_end(void)
+static void __kernel_maps__fixup_end(struct rb_root *root)
{
struct map *prev, *curr;
- struct rb_node *nd, *prevnd = rb_first(&kernel_maps__functions);
+ struct rb_node *nd, *prevnd = rb_first(root);

if (prevnd == NULL)
return;
@@ -101,6 +102,13 @@ static void kernel_maps__fixup_end(void)
curr->end = ~0UL;
}

+static void kernel_maps__fixup_end(void)
+{
+ int i;
+ for (i = 0; i < MAP__NR_TYPES; ++i)
+ __kernel_maps__fixup_end(&kernel_maps[i]);
+}
+
static struct symbol *symbol__new(u64 start, u64 len, const char *name)
{
size_t namelen = strlen(name) + 1;
@@ -449,12 +457,12 @@ static int dso__load_kallsyms(struct dso *self, struct map *map,
return dso__split_kallsyms(self, map, filter);
}

-size_t kernel_maps__fprintf(FILE *fp)
+static size_t __kernel_maps__fprintf(enum map_type type, FILE *fp)
{
- size_t printed = fprintf(fp, "Kernel maps:\n");
+ size_t printed = fprintf(fp, "%s:\n", map_type__name[type]);
struct rb_node *nd;

- for (nd = rb_first(&kernel_maps__functions); nd; nd = rb_next(nd)) {
+ for (nd = rb_first(&kernel_maps[type]); nd; nd = rb_next(nd)) {
struct map *pos = rb_entry(nd, struct map, rb_node);

printed += fprintf(fp, "Map:");
@@ -465,6 +473,16 @@ size_t kernel_maps__fprintf(FILE *fp)
}
}

+ return printed;
+}
+
+size_t kernel_maps__fprintf(FILE *fp)
+{
+ size_t printed = fprintf(fp, "Kernel maps:\n");
+ int i;
+ for (i = 0; i < MAP__NR_TYPES; ++i)
+ printed += __kernel_maps__fprintf(i, fp);
+
return printed + fprintf(fp, "END kernel maps\n");
}

@@ -1191,13 +1209,14 @@ out:

static void kernel_maps__insert(struct map *map)
{
- maps__insert(&kernel_maps__functions, map);
+ maps__insert(&kernel_maps[map->type], map);
}

-struct symbol *kernel_maps__find_function(u64 ip, struct map **mapp,
- symbol_filter_t filter)
+static struct symbol *kernel_maps__find_symbol(u64 ip, enum map_type type,
+ struct map **mapp,
+ symbol_filter_t filter)
{
- struct map *map = maps__find(&kernel_maps__functions, ip);
+ struct map *map = maps__find(&kernel_maps[type], ip);

if (mapp)
*mapp = map;
@@ -1206,17 +1225,23 @@ struct symbol *kernel_maps__find_function(u64 ip, struct map **mapp,
ip = map->map_ip(map, ip);
return map__find_symbol(map, ip, filter);
} else
- WARN_ONCE(RB_EMPTY_ROOT(&kernel_maps__functions),
+ WARN_ONCE(RB_EMPTY_ROOT(&kernel_maps[type]),
"Empty kernel_maps, was symbol__init() called?\n");

return NULL;
}

-struct map *kernel_maps__find_by_dso_name(const char *name)
+struct symbol *kernel_maps__find_function(u64 ip, struct map **mapp,
+ symbol_filter_t filter)
+{
+ return kernel_maps__find_symbol(ip, MAP__FUNCTION, mapp, filter);
+}
+
+static struct map *kernel_maps__find_by_dso_name(const char *name)
{
struct rb_node *nd;

- for (nd = rb_first(&kernel_maps__functions); nd; nd = rb_next(nd)) {
+ for (nd = rb_first(&kernel_maps[MAP__FUNCTION]); nd; nd = rb_next(nd)) {
struct map *map = rb_entry(nd, struct map, rb_node);

if (map->dso && strcmp(map->dso->name, name) == 0)
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 74cba64..54580bb 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -28,7 +28,6 @@ struct map *maps__find(struct rb_root *maps, u64 ip);

struct symbol *kernel_maps__find_function(const u64 ip, struct map **mapp,
symbol_filter_t filter);
-struct map *kernel_maps__find_by_dso_name(const char *name);

static inline struct map *thread__find_map(struct thread *self, u64 ip)
{
--
1.6.2.5
--
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