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-rw-r--r--tools/perf/util/event.h2
-rw-r--r--tools/perf/util/map.c85
-rw-r--r--tools/perf/util/symbol.c104
-rw-r--r--tools/perf/util/symbol.h10
-rw-r--r--tools/perf/util/thread.h3
5 files changed, 163 insertions, 41 deletions
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 56640946b5a9..51a96c2effde 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -151,6 +151,8 @@ int map__overlap(struct map *l, struct map *r);
size_t map__fprintf(struct map *self, FILE *fp);
struct symbol *map__find_symbol(struct map *self, u64 addr,
symbol_filter_t filter);
+struct symbol *map__find_symbol_by_name(struct map *self, const char *name,
+ symbol_filter_t filter);
void map__fixup_start(struct map *self);
void map__fixup_end(struct map *self);
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 69f94fe9db20..175f1f6b6914 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -104,45 +104,66 @@ void map__fixup_end(struct map *self)
#define DSO__DELETED "(deleted)"
-struct symbol *map__find_symbol(struct map *self, u64 addr,
- symbol_filter_t filter)
+static int map__load(struct map *self, symbol_filter_t filter)
{
- if (!dso__loaded(self->dso, self->type)) {
- int nr = dso__load(self->dso, self, filter);
-
- if (nr < 0) {
- if (self->dso->has_build_id) {
- char sbuild_id[BUILD_ID_SIZE * 2 + 1];
-
- build_id__sprintf(self->dso->build_id,
- sizeof(self->dso->build_id),
- sbuild_id);
- pr_warning("%s with build id %s not found",
- self->dso->long_name, sbuild_id);
- } else
- pr_warning("Failed to open %s",
- self->dso->long_name);
- pr_warning(", continuing without symbols\n");
- return NULL;
- } else if (nr == 0) {
- const char *name = self->dso->long_name;
- const size_t len = strlen(name);
- const size_t real_len = len - sizeof(DSO__DELETED);
-
- if (len > sizeof(DSO__DELETED) &&
- strcmp(name + real_len + 1, DSO__DELETED) == 0) {
- pr_warning("%.*s was updated, restart the long running apps that use it!\n",
- (int)real_len, name);
- } else {
- pr_warning("no symbols found in %s, maybe install a debug package?\n", name);
- }
- return NULL;
+ const char *name = self->dso->long_name;
+ int nr = dso__load(self->dso, self, filter);
+
+ if (nr < 0) {
+ if (self->dso->has_build_id) {
+ char sbuild_id[BUILD_ID_SIZE * 2 + 1];
+
+ build_id__sprintf(self->dso->build_id,
+ sizeof(self->dso->build_id),
+ sbuild_id);
+ pr_warning("%s with build id %s not found",
+ name, sbuild_id);
+ } else
+ pr_warning("Failed to open %s", name);
+
+ pr_warning(", continuing without symbols\n");
+ return -1;
+ } else if (nr == 0) {
+ const size_t len = strlen(name);
+ const size_t real_len = len - sizeof(DSO__DELETED);
+
+ if (len > sizeof(DSO__DELETED) &&
+ strcmp(name + real_len + 1, DSO__DELETED) == 0) {
+ pr_warning("%.*s was updated, restart the long "
+ "running apps that use it!\n",
+ (int)real_len, name);
+ } else {
+ pr_warning("no symbols found in %s, maybe install "
+ "a debug package?\n", name);
}
+
+ return -1;
}
+ return 0;
+}
+
+struct symbol *map__find_symbol(struct map *self, u64 addr,
+ symbol_filter_t filter)
+{
+ if (!dso__loaded(self->dso, self->type) && map__load(self, filter) < 0)
+ return NULL;
+
return self->dso->find_symbol(self->dso, self->type, addr);
}
+struct symbol *map__find_symbol_by_name(struct map *self, const char *name,
+ symbol_filter_t filter)
+{
+ if (!dso__loaded(self->dso, self->type) && map__load(self, filter) < 0)
+ return NULL;
+
+ if (!dso__sorted_by_name(self->dso, self->type))
+ dso__sort_by_name(self->dso, self->type);
+
+ return dso__find_symbol_by_name(self->dso, self->type, name);
+}
+
struct map *map__clone(struct map *self)
{
struct map *map = malloc(sizeof(*self));
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index e63ddb469de7..8134c49deae6 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -29,7 +29,6 @@ enum dso_origin {
};
static void dsos__add(struct list_head *head, struct dso *dso);
-static struct map *map_groups__find_by_name(struct map_groups *self, char *name);
static struct map *map__new2(u64 start, struct dso *dso, enum map_type type);
struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr);
static int dso__load_kernel_sym(struct dso *self, struct map *map,
@@ -51,11 +50,21 @@ bool dso__loaded(const struct dso *self, enum map_type type)
return self->loaded & (1 << type);
}
+bool dso__sorted_by_name(const struct dso *self, enum map_type type)
+{
+ return self->sorted_by_name & (1 << type);
+}
+
static void dso__set_loaded(struct dso *self, enum map_type type)
{
self->loaded |= (1 << type);
}
+static void dso__set_sorted_by_name(struct dso *self, enum map_type type)
+{
+ self->sorted_by_name |= (1 << type);
+}
+
static bool symbol_type__is_a(char symbol_type, enum map_type map_type)
{
switch (map_type) {
@@ -176,11 +185,12 @@ struct dso *dso__new(const char *name)
dso__set_long_name(self, self->name);
self->short_name = self->name;
for (i = 0; i < MAP__NR_TYPES; ++i)
- self->symbols[i] = RB_ROOT;
+ self->symbols[i] = self->symbol_names[i] = RB_ROOT;
self->find_symbol = dso__find_symbol;
self->slen_calculated = 0;
self->origin = DSO__ORIG_NOT_FOUND;
self->loaded = 0;
+ self->sorted_by_name = 0;
self->has_build_id = 0;
}
@@ -258,11 +268,85 @@ static struct symbol *symbols__find(struct rb_root *self, u64 ip)
return NULL;
}
-struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr)
+struct symbol_name_rb_node {
+ struct rb_node rb_node;
+ struct symbol sym;
+};
+
+static void symbols__insert_by_name(struct rb_root *self, struct symbol *sym)
+{
+ struct rb_node **p = &self->rb_node;
+ struct rb_node *parent = NULL;
+ struct symbol_name_rb_node *symn = ((void *)sym) - sizeof(*parent), *s;
+
+ while (*p != NULL) {
+ parent = *p;
+ s = rb_entry(parent, struct symbol_name_rb_node, rb_node);
+ if (strcmp(sym->name, s->sym.name) < 0)
+ p = &(*p)->rb_left;
+ else
+ p = &(*p)->rb_right;
+ }
+ rb_link_node(&symn->rb_node, parent, p);
+ rb_insert_color(&symn->rb_node, self);
+}
+
+static void symbols__sort_by_name(struct rb_root *self, struct rb_root *source)
+{
+ struct rb_node *nd;
+
+ for (nd = rb_first(source); nd; nd = rb_next(nd)) {
+ struct symbol *pos = rb_entry(nd, struct symbol, rb_node);
+ symbols__insert_by_name(self, pos);
+ }
+}
+
+static struct symbol *symbols__find_by_name(struct rb_root *self, const char *name)
+{
+ struct rb_node *n;
+
+ if (self == NULL)
+ return NULL;
+
+ n = self->rb_node;
+
+ while (n) {
+ struct symbol_name_rb_node *s;
+ int cmp;
+
+ s = rb_entry(n, struct symbol_name_rb_node, rb_node);
+ cmp = strcmp(name, s->sym.name);
+
+ if (cmp < 0)
+ n = n->rb_left;
+ else if (cmp > 0)
+ n = n->rb_right;
+ else
+ return &s->sym;
+ }
+
+ return NULL;
+}
+
+struct symbol *dso__find_symbol(struct dso *self,
+ enum map_type type, u64 addr)
{
return symbols__find(&self->symbols[type], addr);
}
+struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type,
+ const char *name)
+{
+ return symbols__find_by_name(&self->symbol_names[type], name);
+}
+
+void dso__sort_by_name(struct dso *self, enum map_type type)
+{
+ dso__set_sorted_by_name(self, type);
+ return symbols__sort_by_name(&self->symbol_names[type],
+ &self->symbols[type]);
+}
+
int build_id__sprintf(u8 *self, int len, char *bf)
{
char *bid = bf;
@@ -397,7 +481,7 @@ static int dso__split_kallsyms(struct dso *self, struct map *map,
*module++ = '\0';
if (strcmp(self->name, module)) {
- curr_map = map_groups__find_by_name(mg, module);
+ curr_map = map_groups__find_by_name(mg, map->type, module);
if (curr_map == NULL) {
pr_debug("/proc/{kallsyms,modules} "
"inconsistency!\n");
@@ -895,7 +979,7 @@ static int dso__load_sym(struct dso *self, struct map *map,
snprintf(dso_name, sizeof(dso_name),
"%s%s", self->short_name, section_name);
- curr_map = map_groups__find_by_name(mg, dso_name);
+ curr_map = map_groups__find_by_name(mg, map->type, dso_name);
if (curr_map == NULL) {
u64 start = sym.st_value;
@@ -1226,11 +1310,12 @@ out:
return ret;
}
-static struct map *map_groups__find_by_name(struct map_groups *self, char *name)
+struct map *map_groups__find_by_name(struct map_groups *self,
+ enum map_type type, const char *name)
{
struct rb_node *nd;
- for (nd = rb_first(&self->maps[MAP__FUNCTION]); nd; nd = rb_next(nd)) {
+ for (nd = rb_first(&self->maps[type]); nd; nd = rb_next(nd)) {
struct map *map = rb_entry(nd, struct map, rb_node);
if (map->dso && strcmp(map->dso->name, name) == 0)
@@ -1274,7 +1359,7 @@ static int dsos__set_modules_path_dir(char *dirname)
(int)(dot - dent->d_name), dent->d_name);
strxfrchar(dso_name, '-', '_');
- map = map_groups__find_by_name(kmaps, dso_name);
+ map = map_groups__find_by_name(kmaps, MAP__FUNCTION, dso_name);
if (map == NULL)
continue;
@@ -1671,6 +1756,9 @@ int symbol__init(struct symbol_conf *conf)
elf_version(EV_CURRENT);
symbol__priv_size = pconf->priv_size;
+ if (pconf->sort_by_name)
+ symbol__priv_size += (sizeof(struct symbol_name_rb_node) -
+ sizeof(struct symbol));
map_groups__init(kmaps);
if (pconf->try_vmlinux_path && vmlinux_path__init() < 0)
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 6e1da1ea6311..51c401307bf1 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -52,7 +52,8 @@ struct symbol {
struct symbol_conf {
unsigned short priv_size;
bool try_vmlinux_path,
- use_modules;
+ use_modules,
+ sort_by_name;
const char *vmlinux_name;
};
@@ -74,6 +75,7 @@ struct addr_location {
struct dso {
struct list_head node;
struct rb_root symbols[MAP__NR_TYPES];
+ struct rb_root symbol_names[MAP__NR_TYPES];
struct symbol *(*find_symbol)(struct dso *self,
enum map_type type, u64 addr);
u8 adjust_symbols:1;
@@ -81,6 +83,7 @@ struct dso {
u8 has_build_id:1;
u8 kernel:1;
unsigned char origin;
+ u8 sorted_by_name;
u8 loaded;
u8 build_id[BUILD_ID_SIZE];
u16 long_name_len;
@@ -93,6 +96,9 @@ struct dso *dso__new(const char *name);
void dso__delete(struct dso *self);
bool dso__loaded(const struct dso *self, enum map_type type);
+bool dso__sorted_by_name(const struct dso *self, enum map_type type);
+
+void dso__sort_by_name(struct dso *self, enum map_type type);
struct dso *dsos__findnew(const char *name);
int dso__load(struct dso *self, struct map *map, symbol_filter_t filter);
@@ -103,6 +109,8 @@ size_t dso__fprintf_buildid(struct dso *self, FILE *fp);
size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp);
char dso__symtab_origin(const struct dso *self);
void dso__set_build_id(struct dso *self, void *build_id);
+struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type,
+ const char *name);
int filename__read_build_id(const char *filename, void *bf, size_t size);
int sysfs__read_build_id(const char *filename, void *bf, size_t size);
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index a6333f3716af..1751802a09ba 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -64,4 +64,7 @@ map_groups__find_function(struct map_groups *self, u64 addr,
{
return map_groups__find_symbol(self, MAP__FUNCTION, addr, filter);
}
+
+struct map *map_groups__find_by_name(struct map_groups *self,
+ enum map_type type, const char *name);
#endif /* __PERF_THREAD_H */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.