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perf symbols: Add a 'type' field to struct map

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That way we will be able to check if the right symtab is loaded
in the underlying DSO.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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>
LKML-Reference: <1259346563-12568-5-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Arnaldo Carvalho de Melo 2009-11-27 16:29:16 -02:00 committed by Ingo Molnar
parent 605ca4ba01
commit 3610583c29
6 changed files with 42 additions and 21 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
tools/perf/builtin-top.c
View file

@ -996,7 +996,7 @@ static void event__process_mmap(event_t *self)
struct thread *thread = threads__findnew(self->mmap.pid);
if (thread != NULL) {
struct map *map = map__new(&self->mmap, NULL, 0);
struct map *map = map__new(&self->mmap, MAP__FUNCTION, NULL, 0);
if (map != NULL)
thread__insert_map(thread, map);
}

12
tools/perf/util/event.h
View file

@ -80,6 +80,10 @@ typedef union event_union {
struct sample_event sample;
} event_t;
enum map_type {
MAP__FUNCTION,
};
struct map {
union {
struct rb_node rb_node;
@ -87,6 +91,7 @@ struct map {
};
u64 start;
u64 end;
enum map_type type;
u64 pgoff;
u64 (*map_ip)(struct map *, u64);
u64 (*unmap_ip)(struct map *, u64);
@ -112,9 +117,10 @@ struct symbol;
typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
void map__init(struct map *self, u64 start, u64 end, u64 pgoff,
struct dso *dso);
struct map *map__new(struct mmap_event *event, char *cwd, int cwdlen);
void map__init(struct map *self, enum map_type type,
u64 start, u64 end, u64 pgoff, struct dso *dso);
struct map *map__new(struct mmap_event *event, enum map_type,
char *cwd, int cwdlen);
void map__delete(struct map *self);
struct map *map__clone(struct map *self);
int map__overlap(struct map *l, struct map *r);

12
tools/perf/util/map.c
View file

@ -20,9 +20,10 @@ static int strcommon(const char *pathname, char *cwd, int cwdlen)
return n;
}
void map__init(struct map *self, u64 start, u64 end, u64 pgoff,
struct dso *dso)
void map__init(struct map *self, enum map_type type,
u64 start, u64 end, u64 pgoff, struct dso *dso)
{
self->type = type;
self->start = start;
self->end = end;
self->pgoff = pgoff;
@ -32,7 +33,8 @@ void map__init(struct map *self, u64 start, u64 end, u64 pgoff,
RB_CLEAR_NODE(&self->rb_node);
}
struct map *map__new(struct mmap_event *event, char *cwd, int cwdlen)
struct map *map__new(struct mmap_event *event, enum map_type type,
char *cwd, int cwdlen)
{
struct map *self = malloc(sizeof(*self));
@ -63,7 +65,7 @@ struct map *map__new(struct mmap_event *event, char *cwd, int cwdlen)
if (dso == NULL)
goto out_delete;
map__init(self, event->start, event->start + event->len,
map__init(self, type, event->start, event->start + event->len,
event->pgoff, dso);
if (self->dso == vdso || anon)
@ -103,7 +105,7 @@ void map__fixup_end(struct map *self, struct rb_root *symbols)
struct symbol *map__find_function(struct map *self, u64 ip,
symbol_filter_t filter)
{
if (!self->dso->loaded) {
if (!dso__loaded(self->dso, self->type)) {
int nr = dso__load(self->dso, self, filter);
if (nr < 0) {

2
tools/perf/util/process_events.c
View file

@ -6,7 +6,7 @@ int cwdlen;
int
process_mmap_event(event_t *event, unsigned long offset, unsigned long head)
{
struct map *map = map__new(&event->mmap, cwd, cwdlen);
struct map *map = map__new(&event->mmap, MAP__FUNCTION, cwd, cwdlen);
struct thread *thread = threads__findnew(event->mmap.pid);
dump_printf("%p [%p]: PERF_RECORD_MMAP %d/%d: [%p(%p) @ %p]: %s\n",

31
tools/perf/util/symbol.c
View file

@ -29,7 +29,7 @@ enum dso_origin {
};
static void dsos__add(struct list_head *head, struct dso *dso);
static struct map *map__new2(u64 start, struct dso *dso);
static struct map *map__new2(u64 start, struct dso *dso, enum map_type type);
static void kernel_maps__insert(struct map *map);
static int dso__load_kernel_sym(struct dso *self, struct map *map,
symbol_filter_t filter);
@ -45,6 +45,16 @@ static struct symbol_conf symbol_conf__defaults = {
static struct rb_root kernel_maps__functions;
bool dso__loaded(const struct dso *self, enum map_type type)
{
return self->loaded & (1 << type);
}
static void dso__set_loaded(struct dso *self, enum map_type type)
{
self->loaded |= (1 << type);
}
static void symbols__fixup_end(struct rb_root *self)
{
struct rb_node *nd, *prevnd = rb_first(self);
@ -387,7 +397,7 @@ static int kernel_maps__split_kallsyms(symbol_filter_t filter)
if (dso == NULL)
return -1;
map = map__new2(pos->start, dso);
map = map__new2(pos->start, dso, MAP__FUNCTION);
if (map == NULL) {
dso__delete(dso);
return -1;
@ -846,7 +856,8 @@ static int dso__load_sym(struct dso *self, struct map *map, const char *name,
curr_dso = dso__new(dso_name);
if (curr_dso == NULL)
goto out_elf_end;
curr_map = map__new2(start, curr_dso);
curr_map = map__new2(start, curr_dso,
MAP__FUNCTION);
if (curr_map == NULL) {
dso__delete(curr_dso);
goto out_elf_end;
@ -1076,7 +1087,7 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter)
int ret = -1;
int fd;
self->loaded = 1;
dso__set_loaded(self, map->type);
if (self->kernel)
return dso__load_kernel_sym(self, map, filter);
@ -1275,7 +1286,7 @@ static int dsos__set_modules_path(void)
* they are loaded) and for vmlinux, where only after we load all the
* symbols we'll know where it starts and ends.
*/
static struct map *map__new2(u64 start, struct dso *dso)
static struct map *map__new2(u64 start, struct dso *dso, enum map_type type)
{
struct map *self = malloc(sizeof(*self));
@ -1283,7 +1294,7 @@ static struct map *map__new2(u64 start, struct dso *dso)
/*
* ->end will be filled after we load all the symbols
*/
map__init(self, start, 0, 0, dso);
map__init(self, type, start, 0, 0, dso);
}
return self;
@ -1333,7 +1344,7 @@ static int kernel_maps__create_module_maps(void)
if (dso == NULL)
goto out_delete_line;
map = map__new2(start, dso);
map = map__new2(start, dso, MAP__FUNCTION);
if (map == NULL) {
dso__delete(dso);
goto out_delete_line;
@ -1394,7 +1405,7 @@ static int dso__load_vmlinux(struct dso *self, struct map *map,
if (fd < 0)
return -1;
self->loaded = 1;
dso__set_loaded(self, map->type);
err = dso__load_sym(self, map, self->long_name, fd, filter, 1, 0);
close(fd);
@ -1522,7 +1533,7 @@ static int kernel_maps__create_kernel_map(const struct symbol_conf *conf)
if (kernel == NULL)
return -1;
kernel_map__functions = map__new2(0, kernel);
kernel_map__functions = map__new2(0, kernel, MAP__FUNCTION);
if (kernel_map__functions == NULL)
goto out_delete_kernel_dso;
@ -1533,7 +1544,7 @@ static int kernel_maps__create_kernel_map(const struct symbol_conf *conf)
vdso = dso__new("[vdso]");
if (vdso == NULL)
goto out_delete_kernel_map;
vdso->loaded = 1;
dso__set_loaded(vdso, MAP__FUNCTION);
if (sysfs__read_build_id("/sys/kernel/notes", kernel->build_id,
sizeof(kernel->build_id)) == 0)

4
tools/perf/util/symbol.h
View file

@ -69,10 +69,10 @@ struct dso {
struct symbol *(*find_function)(struct dso *, u64 ip);
u8 adjust_symbols:1;
u8 slen_calculated:1;
u8 loaded:1;
u8 has_build_id:1;
u8 kernel:1;
unsigned char origin;
u8 loaded;
u8 build_id[BUILD_ID_SIZE];
u16 long_name_len;
const char *short_name;
@ -85,6 +85,8 @@ void dso__delete(struct dso *self);
struct symbol *dso__find_function(struct dso *self, u64 ip);
bool dso__loaded(const 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);
void dsos__fprintf(FILE *fp);