perf tools: Move dso_* related functions into dso object
Moving dso_* related functions into dso object. Keeping symbol loading related functions still in the symbol object as it seems more convenient. Signed-off-by: Jiri Olsa <jolsa@redhat.com> Reviewed-by: Namhyung Kim <namhyung@kernel.org> Tested-by: Namhyung Kim <namhyung@kernel.org> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1351372712-21104-6-git-send-email-jolsa@redhat.com [ committer note: Use "symbol.h" instead of <symbol.h> to make it build with O= ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
committed by
Arnaldo Carvalho de Melo
Arnaldo Carvalho de Melo
parent
ea36c46be6
commit
cdd059d731
594
tools/perf/util/dso.c
Normal file
594
tools/perf/util/dso.c
Normal file
@@ -0,0 +1,594 @@
|
||||
#include "symbol.h"
|
||||
#include "dso.h"
|
||||
#include "util.h"
|
||||
#include "debug.h"
|
||||
|
||||
char dso__symtab_origin(const struct dso *dso)
|
||||
{
|
||||
static const char origin[] = {
|
||||
[DSO_BINARY_TYPE__KALLSYMS] = 'k',
|
||||
[DSO_BINARY_TYPE__VMLINUX] = 'v',
|
||||
[DSO_BINARY_TYPE__JAVA_JIT] = 'j',
|
||||
[DSO_BINARY_TYPE__DEBUGLINK] = 'l',
|
||||
[DSO_BINARY_TYPE__BUILD_ID_CACHE] = 'B',
|
||||
[DSO_BINARY_TYPE__FEDORA_DEBUGINFO] = 'f',
|
||||
[DSO_BINARY_TYPE__UBUNTU_DEBUGINFO] = 'u',
|
||||
[DSO_BINARY_TYPE__BUILDID_DEBUGINFO] = 'b',
|
||||
[DSO_BINARY_TYPE__SYSTEM_PATH_DSO] = 'd',
|
||||
[DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE] = 'K',
|
||||
[DSO_BINARY_TYPE__GUEST_KALLSYMS] = 'g',
|
||||
[DSO_BINARY_TYPE__GUEST_KMODULE] = 'G',
|
||||
[DSO_BINARY_TYPE__GUEST_VMLINUX] = 'V',
|
||||
};
|
||||
|
||||
if (dso == NULL || dso->symtab_type == DSO_BINARY_TYPE__NOT_FOUND)
|
||||
return '!';
|
||||
return origin[dso->symtab_type];
|
||||
}
|
||||
|
||||
int dso__binary_type_file(struct dso *dso, enum dso_binary_type type,
|
||||
char *root_dir, char *file, size_t size)
|
||||
{
|
||||
char build_id_hex[BUILD_ID_SIZE * 2 + 1];
|
||||
int ret = 0;
|
||||
|
||||
switch (type) {
|
||||
case DSO_BINARY_TYPE__DEBUGLINK: {
|
||||
char *debuglink;
|
||||
|
||||
strncpy(file, dso->long_name, size);
|
||||
debuglink = file + dso->long_name_len;
|
||||
while (debuglink != file && *debuglink != '/')
|
||||
debuglink--;
|
||||
if (*debuglink == '/')
|
||||
debuglink++;
|
||||
filename__read_debuglink(dso->long_name, debuglink,
|
||||
size - (debuglink - file));
|
||||
}
|
||||
break;
|
||||
case DSO_BINARY_TYPE__BUILD_ID_CACHE:
|
||||
/* skip the locally configured cache if a symfs is given */
|
||||
if (symbol_conf.symfs[0] ||
|
||||
(dso__build_id_filename(dso, file, size) == NULL))
|
||||
ret = -1;
|
||||
break;
|
||||
|
||||
case DSO_BINARY_TYPE__FEDORA_DEBUGINFO:
|
||||
snprintf(file, size, "%s/usr/lib/debug%s.debug",
|
||||
symbol_conf.symfs, dso->long_name);
|
||||
break;
|
||||
|
||||
case DSO_BINARY_TYPE__UBUNTU_DEBUGINFO:
|
||||
snprintf(file, size, "%s/usr/lib/debug%s",
|
||||
symbol_conf.symfs, dso->long_name);
|
||||
break;
|
||||
|
||||
case DSO_BINARY_TYPE__BUILDID_DEBUGINFO:
|
||||
if (!dso->has_build_id) {
|
||||
ret = -1;
|
||||
break;
|
||||
}
|
||||
|
||||
build_id__sprintf(dso->build_id,
|
||||
sizeof(dso->build_id),
|
||||
build_id_hex);
|
||||
snprintf(file, size,
|
||||
"%s/usr/lib/debug/.build-id/%.2s/%s.debug",
|
||||
symbol_conf.symfs, build_id_hex, build_id_hex + 2);
|
||||
break;
|
||||
|
||||
case DSO_BINARY_TYPE__SYSTEM_PATH_DSO:
|
||||
snprintf(file, size, "%s%s",
|
||||
symbol_conf.symfs, dso->long_name);
|
||||
break;
|
||||
|
||||
case DSO_BINARY_TYPE__GUEST_KMODULE:
|
||||
snprintf(file, size, "%s%s%s", symbol_conf.symfs,
|
||||
root_dir, dso->long_name);
|
||||
break;
|
||||
|
||||
case DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE:
|
||||
snprintf(file, size, "%s%s", symbol_conf.symfs,
|
||||
dso->long_name);
|
||||
break;
|
||||
|
||||
default:
|
||||
case DSO_BINARY_TYPE__KALLSYMS:
|
||||
case DSO_BINARY_TYPE__VMLINUX:
|
||||
case DSO_BINARY_TYPE__GUEST_KALLSYMS:
|
||||
case DSO_BINARY_TYPE__GUEST_VMLINUX:
|
||||
case DSO_BINARY_TYPE__JAVA_JIT:
|
||||
case DSO_BINARY_TYPE__NOT_FOUND:
|
||||
ret = -1;
|
||||
break;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int open_dso(struct dso *dso, struct machine *machine)
|
||||
{
|
||||
char *root_dir = (char *) "";
|
||||
char *name;
|
||||
int fd;
|
||||
|
||||
name = malloc(PATH_MAX);
|
||||
if (!name)
|
||||
return -ENOMEM;
|
||||
|
||||
if (machine)
|
||||
root_dir = machine->root_dir;
|
||||
|
||||
if (dso__binary_type_file(dso, dso->data_type,
|
||||
root_dir, name, PATH_MAX)) {
|
||||
free(name);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
fd = open(name, O_RDONLY);
|
||||
free(name);
|
||||
return fd;
|
||||
}
|
||||
|
||||
int dso__data_fd(struct dso *dso, struct machine *machine)
|
||||
{
|
||||
static enum dso_binary_type binary_type_data[] = {
|
||||
DSO_BINARY_TYPE__BUILD_ID_CACHE,
|
||||
DSO_BINARY_TYPE__SYSTEM_PATH_DSO,
|
||||
DSO_BINARY_TYPE__NOT_FOUND,
|
||||
};
|
||||
int i = 0;
|
||||
|
||||
if (dso->data_type != DSO_BINARY_TYPE__NOT_FOUND)
|
||||
return open_dso(dso, machine);
|
||||
|
||||
do {
|
||||
int fd;
|
||||
|
||||
dso->data_type = binary_type_data[i++];
|
||||
|
||||
fd = open_dso(dso, machine);
|
||||
if (fd >= 0)
|
||||
return fd;
|
||||
|
||||
} while (dso->data_type != DSO_BINARY_TYPE__NOT_FOUND);
|
||||
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
static void
|
||||
dso_cache__free(struct rb_root *root)
|
||||
{
|
||||
struct rb_node *next = rb_first(root);
|
||||
|
||||
while (next) {
|
||||
struct dso_cache *cache;
|
||||
|
||||
cache = rb_entry(next, struct dso_cache, rb_node);
|
||||
next = rb_next(&cache->rb_node);
|
||||
rb_erase(&cache->rb_node, root);
|
||||
free(cache);
|
||||
}
|
||||
}
|
||||
|
||||
static struct dso_cache*
|
||||
dso_cache__find(struct rb_root *root, u64 offset)
|
||||
{
|
||||
struct rb_node **p = &root->rb_node;
|
||||
struct rb_node *parent = NULL;
|
||||
struct dso_cache *cache;
|
||||
|
||||
while (*p != NULL) {
|
||||
u64 end;
|
||||
|
||||
parent = *p;
|
||||
cache = rb_entry(parent, struct dso_cache, rb_node);
|
||||
end = cache->offset + DSO__DATA_CACHE_SIZE;
|
||||
|
||||
if (offset < cache->offset)
|
||||
p = &(*p)->rb_left;
|
||||
else if (offset >= end)
|
||||
p = &(*p)->rb_right;
|
||||
else
|
||||
return cache;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static void
|
||||
dso_cache__insert(struct rb_root *root, struct dso_cache *new)
|
||||
{
|
||||
struct rb_node **p = &root->rb_node;
|
||||
struct rb_node *parent = NULL;
|
||||
struct dso_cache *cache;
|
||||
u64 offset = new->offset;
|
||||
|
||||
while (*p != NULL) {
|
||||
u64 end;
|
||||
|
||||
parent = *p;
|
||||
cache = rb_entry(parent, struct dso_cache, rb_node);
|
||||
end = cache->offset + DSO__DATA_CACHE_SIZE;
|
||||
|
||||
if (offset < cache->offset)
|
||||
p = &(*p)->rb_left;
|
||||
else if (offset >= end)
|
||||
p = &(*p)->rb_right;
|
||||
}
|
||||
|
||||
rb_link_node(&new->rb_node, parent, p);
|
||||
rb_insert_color(&new->rb_node, root);
|
||||
}
|
||||
|
||||
static ssize_t
|
||||
dso_cache__memcpy(struct dso_cache *cache, u64 offset,
|
||||
u8 *data, u64 size)
|
||||
{
|
||||
u64 cache_offset = offset - cache->offset;
|
||||
u64 cache_size = min(cache->size - cache_offset, size);
|
||||
|
||||
memcpy(data, cache->data + cache_offset, cache_size);
|
||||
return cache_size;
|
||||
}
|
||||
|
||||
static ssize_t
|
||||
dso_cache__read(struct dso *dso, struct machine *machine,
|
||||
u64 offset, u8 *data, ssize_t size)
|
||||
{
|
||||
struct dso_cache *cache;
|
||||
ssize_t ret;
|
||||
int fd;
|
||||
|
||||
fd = dso__data_fd(dso, machine);
|
||||
if (fd < 0)
|
||||
return -1;
|
||||
|
||||
do {
|
||||
u64 cache_offset;
|
||||
|
||||
ret = -ENOMEM;
|
||||
|
||||
cache = zalloc(sizeof(*cache) + DSO__DATA_CACHE_SIZE);
|
||||
if (!cache)
|
||||
break;
|
||||
|
||||
cache_offset = offset & DSO__DATA_CACHE_MASK;
|
||||
ret = -EINVAL;
|
||||
|
||||
if (-1 == lseek(fd, cache_offset, SEEK_SET))
|
||||
break;
|
||||
|
||||
ret = read(fd, cache->data, DSO__DATA_CACHE_SIZE);
|
||||
if (ret <= 0)
|
||||
break;
|
||||
|
||||
cache->offset = cache_offset;
|
||||
cache->size = ret;
|
||||
dso_cache__insert(&dso->cache, cache);
|
||||
|
||||
ret = dso_cache__memcpy(cache, offset, data, size);
|
||||
|
||||
} while (0);
|
||||
|
||||
if (ret <= 0)
|
||||
free(cache);
|
||||
|
||||
close(fd);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static ssize_t dso_cache_read(struct dso *dso, struct machine *machine,
|
||||
u64 offset, u8 *data, ssize_t size)
|
||||
{
|
||||
struct dso_cache *cache;
|
||||
|
||||
cache = dso_cache__find(&dso->cache, offset);
|
||||
if (cache)
|
||||
return dso_cache__memcpy(cache, offset, data, size);
|
||||
else
|
||||
return dso_cache__read(dso, machine, offset, data, size);
|
||||
}
|
||||
|
||||
ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
|
||||
u64 offset, u8 *data, ssize_t size)
|
||||
{
|
||||
ssize_t r = 0;
|
||||
u8 *p = data;
|
||||
|
||||
do {
|
||||
ssize_t ret;
|
||||
|
||||
ret = dso_cache_read(dso, machine, offset, p, size);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
/* Reached EOF, return what we have. */
|
||||
if (!ret)
|
||||
break;
|
||||
|
||||
BUG_ON(ret > size);
|
||||
|
||||
r += ret;
|
||||
p += ret;
|
||||
offset += ret;
|
||||
size -= ret;
|
||||
|
||||
} while (size);
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
ssize_t dso__data_read_addr(struct dso *dso, struct map *map,
|
||||
struct machine *machine, u64 addr,
|
||||
u8 *data, ssize_t size)
|
||||
{
|
||||
u64 offset = map->map_ip(map, addr);
|
||||
return dso__data_read_offset(dso, machine, offset, data, size);
|
||||
}
|
||||
|
||||
struct map *dso__new_map(const char *name)
|
||||
{
|
||||
struct map *map = NULL;
|
||||
struct dso *dso = dso__new(name);
|
||||
|
||||
if (dso)
|
||||
map = map__new2(0, dso, MAP__FUNCTION);
|
||||
|
||||
return map;
|
||||
}
|
||||
|
||||
struct dso *dso__kernel_findnew(struct machine *machine, const char *name,
|
||||
const char *short_name, int dso_type)
|
||||
{
|
||||
/*
|
||||
* The kernel dso could be created by build_id processing.
|
||||
*/
|
||||
struct dso *dso = __dsos__findnew(&machine->kernel_dsos, name);
|
||||
|
||||
/*
|
||||
* We need to run this in all cases, since during the build_id
|
||||
* processing we had no idea this was the kernel dso.
|
||||
*/
|
||||
if (dso != NULL) {
|
||||
dso__set_short_name(dso, short_name);
|
||||
dso->kernel = dso_type;
|
||||
}
|
||||
|
||||
return dso;
|
||||
}
|
||||
|
||||
void dso__set_long_name(struct dso *dso, char *name)
|
||||
{
|
||||
if (name == NULL)
|
||||
return;
|
||||
dso->long_name = name;
|
||||
dso->long_name_len = strlen(name);
|
||||
}
|
||||
|
||||
void dso__set_short_name(struct dso *dso, const char *name)
|
||||
{
|
||||
if (name == NULL)
|
||||
return;
|
||||
dso->short_name = name;
|
||||
dso->short_name_len = strlen(name);
|
||||
}
|
||||
|
||||
static void dso__set_basename(struct dso *dso)
|
||||
{
|
||||
dso__set_short_name(dso, basename(dso->long_name));
|
||||
}
|
||||
|
||||
int dso__name_len(const struct dso *dso)
|
||||
{
|
||||
if (!dso)
|
||||
return strlen("[unknown]");
|
||||
if (verbose)
|
||||
return dso->long_name_len;
|
||||
|
||||
return dso->short_name_len;
|
||||
}
|
||||
|
||||
bool dso__loaded(const struct dso *dso, enum map_type type)
|
||||
{
|
||||
return dso->loaded & (1 << type);
|
||||
}
|
||||
|
||||
bool dso__sorted_by_name(const struct dso *dso, enum map_type type)
|
||||
{
|
||||
return dso->sorted_by_name & (1 << type);
|
||||
}
|
||||
|
||||
void dso__set_sorted_by_name(struct dso *dso, enum map_type type)
|
||||
{
|
||||
dso->sorted_by_name |= (1 << type);
|
||||
}
|
||||
|
||||
struct dso *dso__new(const char *name)
|
||||
{
|
||||
struct dso *dso = calloc(1, sizeof(*dso) + strlen(name) + 1);
|
||||
|
||||
if (dso != NULL) {
|
||||
int i;
|
||||
strcpy(dso->name, name);
|
||||
dso__set_long_name(dso, dso->name);
|
||||
dso__set_short_name(dso, dso->name);
|
||||
for (i = 0; i < MAP__NR_TYPES; ++i)
|
||||
dso->symbols[i] = dso->symbol_names[i] = RB_ROOT;
|
||||
dso->cache = RB_ROOT;
|
||||
dso->symtab_type = DSO_BINARY_TYPE__NOT_FOUND;
|
||||
dso->data_type = DSO_BINARY_TYPE__NOT_FOUND;
|
||||
dso->loaded = 0;
|
||||
dso->sorted_by_name = 0;
|
||||
dso->has_build_id = 0;
|
||||
dso->kernel = DSO_TYPE_USER;
|
||||
dso->needs_swap = DSO_SWAP__UNSET;
|
||||
INIT_LIST_HEAD(&dso->node);
|
||||
}
|
||||
|
||||
return dso;
|
||||
}
|
||||
|
||||
void dso__delete(struct dso *dso)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < MAP__NR_TYPES; ++i)
|
||||
symbols__delete(&dso->symbols[i]);
|
||||
if (dso->sname_alloc)
|
||||
free((char *)dso->short_name);
|
||||
if (dso->lname_alloc)
|
||||
free(dso->long_name);
|
||||
dso_cache__free(&dso->cache);
|
||||
free(dso);
|
||||
}
|
||||
|
||||
void dso__set_build_id(struct dso *dso, void *build_id)
|
||||
{
|
||||
memcpy(dso->build_id, build_id, sizeof(dso->build_id));
|
||||
dso->has_build_id = 1;
|
||||
}
|
||||
|
||||
bool dso__build_id_equal(const struct dso *dso, u8 *build_id)
|
||||
{
|
||||
return memcmp(dso->build_id, build_id, sizeof(dso->build_id)) == 0;
|
||||
}
|
||||
|
||||
void dso__read_running_kernel_build_id(struct dso *dso, struct machine *machine)
|
||||
{
|
||||
char path[PATH_MAX];
|
||||
|
||||
if (machine__is_default_guest(machine))
|
||||
return;
|
||||
sprintf(path, "%s/sys/kernel/notes", machine->root_dir);
|
||||
if (sysfs__read_build_id(path, dso->build_id,
|
||||
sizeof(dso->build_id)) == 0)
|
||||
dso->has_build_id = true;
|
||||
}
|
||||
|
||||
int dso__kernel_module_get_build_id(struct dso *dso,
|
||||
const char *root_dir)
|
||||
{
|
||||
char filename[PATH_MAX];
|
||||
/*
|
||||
* kernel module short names are of the form "[module]" and
|
||||
* we need just "module" here.
|
||||
*/
|
||||
const char *name = dso->short_name + 1;
|
||||
|
||||
snprintf(filename, sizeof(filename),
|
||||
"%s/sys/module/%.*s/notes/.note.gnu.build-id",
|
||||
root_dir, (int)strlen(name) - 1, name);
|
||||
|
||||
if (sysfs__read_build_id(filename, dso->build_id,
|
||||
sizeof(dso->build_id)) == 0)
|
||||
dso->has_build_id = true;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
bool __dsos__read_build_ids(struct list_head *head, bool with_hits)
|
||||
{
|
||||
bool have_build_id = false;
|
||||
struct dso *pos;
|
||||
|
||||
list_for_each_entry(pos, head, node) {
|
||||
if (with_hits && !pos->hit)
|
||||
continue;
|
||||
if (pos->has_build_id) {
|
||||
have_build_id = true;
|
||||
continue;
|
||||
}
|
||||
if (filename__read_build_id(pos->long_name, pos->build_id,
|
||||
sizeof(pos->build_id)) > 0) {
|
||||
have_build_id = true;
|
||||
pos->has_build_id = true;
|
||||
}
|
||||
}
|
||||
|
||||
return have_build_id;
|
||||
}
|
||||
|
||||
void dsos__add(struct list_head *head, struct dso *dso)
|
||||
{
|
||||
list_add_tail(&dso->node, head);
|
||||
}
|
||||
|
||||
struct dso *dsos__find(struct list_head *head, const char *name)
|
||||
{
|
||||
struct dso *pos;
|
||||
|
||||
list_for_each_entry(pos, head, node)
|
||||
if (strcmp(pos->long_name, name) == 0)
|
||||
return pos;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
struct dso *__dsos__findnew(struct list_head *head, const char *name)
|
||||
{
|
||||
struct dso *dso = dsos__find(head, name);
|
||||
|
||||
if (!dso) {
|
||||
dso = dso__new(name);
|
||||
if (dso != NULL) {
|
||||
dsos__add(head, dso);
|
||||
dso__set_basename(dso);
|
||||
}
|
||||
}
|
||||
|
||||
return dso;
|
||||
}
|
||||
|
||||
size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp,
|
||||
bool with_hits)
|
||||
{
|
||||
struct dso *pos;
|
||||
size_t ret = 0;
|
||||
|
||||
list_for_each_entry(pos, head, node) {
|
||||
if (with_hits && !pos->hit)
|
||||
continue;
|
||||
ret += dso__fprintf_buildid(pos, fp);
|
||||
ret += fprintf(fp, " %s\n", pos->long_name);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
size_t __dsos__fprintf(struct list_head *head, FILE *fp)
|
||||
{
|
||||
struct dso *pos;
|
||||
size_t ret = 0;
|
||||
|
||||
list_for_each_entry(pos, head, node) {
|
||||
int i;
|
||||
for (i = 0; i < MAP__NR_TYPES; ++i)
|
||||
ret += dso__fprintf(pos, i, fp);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
size_t dso__fprintf_buildid(struct dso *dso, FILE *fp)
|
||||
{
|
||||
char sbuild_id[BUILD_ID_SIZE * 2 + 1];
|
||||
|
||||
build_id__sprintf(dso->build_id, sizeof(dso->build_id), sbuild_id);
|
||||
return fprintf(fp, "%s", sbuild_id);
|
||||
}
|
||||
|
||||
size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp)
|
||||
{
|
||||
struct rb_node *nd;
|
||||
size_t ret = fprintf(fp, "dso: %s (", dso->short_name);
|
||||
|
||||
if (dso->short_name != dso->long_name)
|
||||
ret += fprintf(fp, "%s, ", dso->long_name);
|
||||
ret += fprintf(fp, "%s, %sloaded, ", map_type__name[type],
|
||||
dso->loaded ? "" : "NOT ");
|
||||
ret += dso__fprintf_buildid(dso, fp);
|
||||
ret += fprintf(fp, ")\n");
|
||||
for (nd = rb_first(&dso->symbols[type]); nd; nd = rb_next(nd)) {
|
||||
struct symbol *pos = rb_entry(nd, struct symbol, rb_node);
|
||||
ret += symbol__fprintf(pos, fp);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
Reference in New Issue
Block a user