AcoSail/kernel_optimize_test
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perf symbols: Split the dsos list into kernel and user parts

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We don't need to look at modules in dsos__findnew because the
kernel events come only with user DSOs. Also we need a way to
list just the module DSOs so that we can create multiple sets of
maps, now that we will support maps for the variables in a
symtab.

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: <1259346563-12568-3-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 16:29:14 -02:00 committed by Ingo Molnar
parent 61f37a824d
commit b0da954a47
3 changed files with 48 additions and 22 deletions
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12
tools/perf/util/header.c
View File

@ -185,11 +185,11 @@ static int do_write(int fd, const void *buf, size_t size)
return 0;
}
static int dsos__write_buildid_table(int fd)
static int __dsos__write_buildid_table(struct list_head *head, int fd)
{
struct dso *pos;
list_for_each_entry(pos, &dsos, node) {
list_for_each_entry(pos, head, node) {
int err;
struct build_id_event b;
size_t len;
@ -212,6 +212,14 @@ static int dsos__write_buildid_table(int fd)
return 0;
}
static int dsos__write_buildid_table(int fd)
{
int err = __dsos__write_buildid_table(&dsos__kernel, fd);
if (err == 0)
err = __dsos__write_buildid_table(&dsos__user, fd);
return err;
}
static int perf_header__adds_write(struct perf_header *self, int fd)
{
int nr_sections;

56
tools/perf/util/symbol.c
View File

@ -28,8 +28,7 @@ enum dso_origin {
DSO__ORIG_NOT_FOUND,
};
static void dsos__add(struct dso *dso);
static struct dso *dsos__find(const char *name);
static void dsos__add(struct list_head *head, struct dso *dso);
static struct map *map__new2(u64 start, struct dso *dso);
static void kernel_maps__insert(struct map *map);
static int dso__load_kernel_sym(struct dso *self, struct map *map,
@ -855,7 +854,7 @@ static int dso__load_sym(struct dso *self, struct map *map, const char *name,
curr_map->unmap_ip = identity__map_ip;
curr_dso->origin = DSO__ORIG_KERNEL;
kernel_maps__insert(curr_map);
dsos__add(curr_dso);
dsos__add(&dsos__kernel, curr_dso);
} else
curr_dso = curr_map->dso;
@ -907,12 +906,12 @@ static bool dso__build_id_equal(const struct dso *self, u8 *build_id)
return memcmp(self->build_id, build_id, sizeof(self->build_id)) == 0;
}
bool dsos__read_build_ids(void)
static bool __dsos__read_build_ids(struct list_head *head)
{
bool have_build_id = false;
struct dso *pos;
list_for_each_entry(pos, &dsos, node)
list_for_each_entry(pos, head, node)
if (filename__read_build_id(pos->long_name, pos->build_id,
sizeof(pos->build_id)) > 0) {
have_build_id = true;
@ -922,6 +921,12 @@ bool dsos__read_build_ids(void)
return have_build_id;
}
bool dsos__read_build_ids(void)
{
return __dsos__read_build_ids(&dsos__kernel) ||
__dsos__read_build_ids(&dsos__user);
}
/*
* Align offset to 4 bytes as needed for note name and descriptor data.
*/
@ -1343,7 +1348,7 @@ static int kernel_maps__create_module_maps(void)
dso->origin = DSO__ORIG_KMODULE;
kernel_maps__insert(map);
dsos__add(dso);
dsos__add(&dsos__kernel, dso);
}
free(line);
@ -1445,19 +1450,20 @@ static int dso__load_kernel_sym(struct dso *self, struct map *map,
return err;
}
LIST_HEAD(dsos);
LIST_HEAD(dsos__user);
LIST_HEAD(dsos__kernel);
struct dso *vdso;
static void dsos__add(struct dso *dso)
static void dsos__add(struct list_head *head, struct dso *dso)
{
list_add_tail(&dso->node, &dsos);
list_add_tail(&dso->node, head);
}
static struct dso *dsos__find(const char *name)
static struct dso *dsos__find(struct list_head *head, const char *name)
{
struct dso *pos;
list_for_each_entry(pos, &dsos, node)
list_for_each_entry(pos, head, node)
if (strcmp(pos->name, name) == 0)
return pos;
return NULL;
@ -1465,12 +1471,12 @@ static struct dso *dsos__find(const char *name)
struct dso *dsos__findnew(const char *name)
{
struct dso *dso = dsos__find(name);
struct dso *dso = dsos__find(&dsos__user, name);
if (!dso) {
dso = dso__new(name);
if (dso != NULL) {
dsos__add(dso);
dsos__add(&dsos__user, dso);
dso__set_basename(dso);
}
}
@ -1478,26 +1484,38 @@ struct dso *dsos__findnew(const char *name)
return dso;
}
void dsos__fprintf(FILE *fp)
static void __dsos__fprintf(struct list_head *head, FILE *fp)
{
struct dso *pos;
list_for_each_entry(pos, &dsos, node)
list_for_each_entry(pos, head, node)
dso__fprintf(pos, fp);
}
size_t dsos__fprintf_buildid(FILE *fp)
void dsos__fprintf(FILE *fp)
{
__dsos__fprintf(&dsos__kernel, fp);
__dsos__fprintf(&dsos__user, fp);
}
static size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp)
{
struct dso *pos;
size_t ret = 0;
list_for_each_entry(pos, &dsos, node) {
list_for_each_entry(pos, head, node) {
ret += dso__fprintf_buildid(pos, fp);
ret += fprintf(fp, " %s\n", pos->long_name);
}
return ret;
}
size_t dsos__fprintf_buildid(FILE *fp)
{
return (__dsos__fprintf_buildid(&dsos__kernel, fp) +
__dsos__fprintf_buildid(&dsos__user, fp));
}
static int kernel_maps__create_kernel_map(const struct symbol_conf *conf)
{
struct dso *kernel = dso__new(conf->vmlinux_name ?: "[kernel.kallsyms]");
@ -1523,8 +1541,8 @@ static int kernel_maps__create_kernel_map(const struct symbol_conf *conf)
kernel->has_build_id = true;
kernel_maps__insert(kernel_map__functions);
dsos__add(kernel);
dsos__add(vdso);
dsos__add(&dsos__kernel, kernel);
dsos__add(&dsos__user, vdso);
return 0;

2
tools/perf/util/symbol.h
View File

@ -104,7 +104,7 @@ size_t kernel_maps__fprintf(FILE *fp);
int symbol__init(struct symbol_conf *conf);
extern struct list_head dsos;
extern struct list_head dsos__user, dsos__kernel;
extern struct map *kernel_map__functions;
extern struct dso *vdso;
#endif /* __PERF_SYMBOL */