perf maps: Rename 'mg' variables to 'maps'

Continuing the merge of 'struct maps' with 'struct map_groups'.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-z8d14wrw393a0fbvmnk1bqd9@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent f2eaea09
......@@ -35,7 +35,7 @@ static int check_maps(struct map_def *merged, unsigned int size, struct maps *ma
int test__map_groups__merge_in(struct test *t __maybe_unused, int subtest __maybe_unused)
{
struct maps mg;
struct maps maps;
unsigned int i;
struct map_def bpf_progs[] = {
{ "bpf_prog_1", 200, 300 },
......@@ -64,7 +64,7 @@ int test__map_groups__merge_in(struct test *t __maybe_unused, int subtest __mayb
struct map *map_kcore1, *map_kcore2, *map_kcore3;
int ret;
maps__init(&mg, NULL);
maps__init(&maps, NULL);
for (i = 0; i < ARRAY_SIZE(bpf_progs); i++) {
struct map *map;
......@@ -74,7 +74,7 @@ int test__map_groups__merge_in(struct test *t __maybe_unused, int subtest __mayb
map->start = bpf_progs[i].start;
map->end = bpf_progs[i].end;
maps__insert(&mg, map);
maps__insert(&maps, map);
map__put(map);
}
......@@ -99,22 +99,22 @@ int test__map_groups__merge_in(struct test *t __maybe_unused, int subtest __mayb
map_kcore3->start = 880;
map_kcore3->end = 1100;
ret = maps__merge_in(&mg, map_kcore1);
ret = maps__merge_in(&maps, map_kcore1);
TEST_ASSERT_VAL("failed to merge map", !ret);
ret = check_maps(merged12, ARRAY_SIZE(merged12), &mg);
ret = check_maps(merged12, ARRAY_SIZE(merged12), &maps);
TEST_ASSERT_VAL("merge check failed", !ret);
ret = maps__merge_in(&mg, map_kcore2);
ret = maps__merge_in(&maps, map_kcore2);
TEST_ASSERT_VAL("failed to merge map", !ret);
ret = check_maps(merged12, ARRAY_SIZE(merged12), &mg);
ret = check_maps(merged12, ARRAY_SIZE(merged12), &maps);
TEST_ASSERT_VAL("merge check failed", !ret);
ret = maps__merge_in(&mg, map_kcore3);
ret = maps__merge_in(&maps, map_kcore3);
TEST_ASSERT_VAL("failed to merge map", !ret);
ret = check_maps(merged3, ARRAY_SIZE(merged3), &mg);
ret = check_maps(merged3, ARRAY_SIZE(merged3), &maps);
TEST_ASSERT_VAL("merge check failed", !ret);
return TEST_OK;
}
......@@ -12,7 +12,7 @@ int test__thread_mg_share(struct test *test __maybe_unused, int subtest __maybe_
/* thread group */
struct thread *leader;
struct thread *t1, *t2, *t3;
struct maps *mg;
struct maps *maps;
/* other process */
struct thread *other, *other_leader;
......@@ -42,13 +42,13 @@ int test__thread_mg_share(struct test *test __maybe_unused, int subtest __maybe_
TEST_ASSERT_VAL("failed to create threads",
leader && t1 && t2 && t3 && other);
mg = leader->maps;
TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(&mg->refcnt), 4);
maps = leader->maps;
TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(&maps->refcnt), 4);
/* test the map groups pointer is shared */
TEST_ASSERT_VAL("map groups don't match", mg == t1->maps);
TEST_ASSERT_VAL("map groups don't match", mg == t2->maps);
TEST_ASSERT_VAL("map groups don't match", mg == t3->maps);
TEST_ASSERT_VAL("map groups don't match", maps == t1->maps);
TEST_ASSERT_VAL("map groups don't match", maps == t2->maps);
TEST_ASSERT_VAL("map groups don't match", maps == t3->maps);
/*
* Verify the other leader was created by previous call.
......@@ -77,13 +77,13 @@ int test__thread_mg_share(struct test *test __maybe_unused, int subtest __maybe_
/* release thread group */
thread__put(leader);
TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(&mg->refcnt), 3);
TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(&maps->refcnt), 3);
thread__put(t1);
TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(&mg->refcnt), 2);
TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(&maps->refcnt), 2);
thread__put(t2);
TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(&mg->refcnt), 1);
TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(&maps->refcnt), 1);
thread__put(t3);
......
......@@ -457,11 +457,11 @@ int perf_event__process(struct perf_tool *tool __maybe_unused,
struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
struct addr_location *al)
{
struct maps *mg = thread->maps;
struct machine *machine = mg->machine;
struct maps *maps = thread->maps;
struct machine *machine = maps->machine;
bool load_map = false;
al->maps = mg;
al->maps = maps;
al->thread = thread;
al->addr = addr;
al->cpumode = cpumode;
......@@ -474,13 +474,13 @@ struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) {
al->level = 'k';
al->maps = mg = &machine->kmaps;
al->maps = maps = &machine->kmaps;
load_map = true;
} else if (cpumode == PERF_RECORD_MISC_USER && perf_host) {
al->level = '.';
} else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) {
al->level = 'g';
al->maps = mg = &machine->kmaps;
al->maps = maps = &machine->kmaps;
load_map = true;
} else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) {
al->level = 'u';
......@@ -500,7 +500,7 @@ struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
return NULL;
}
al->map = maps__find(mg, al->addr);
al->map = maps__find(maps, al->addr);
if (al->map != NULL) {
/*
* Kernel maps might be changed when loading symbols so loading
......
......@@ -1259,10 +1259,10 @@ static bool is_kmod_dso(struct dso *dso)
dso->symtab_type == DSO_BINARY_TYPE__GUEST_KMODULE;
}
static int maps__set_module_path(struct maps *mg, const char *path, struct kmod_path *m)
static int maps__set_module_path(struct maps *maps, const char *path, struct kmod_path *m)
{
char *long_name;
struct map *map = maps__find_by_name(mg, m->name);
struct map *map = maps__find_by_name(maps, m->name);
if (map == NULL)
return 0;
......@@ -1286,7 +1286,7 @@ static int maps__set_module_path(struct maps *mg, const char *path, struct kmod_
return 0;
}
static int maps__set_modules_path_dir(struct maps *mg, const char *dir_name, int depth)
static int maps__set_modules_path_dir(struct maps *maps, const char *dir_name, int depth)
{
struct dirent *dent;
DIR *dir = opendir(dir_name);
......@@ -1318,7 +1318,7 @@ static int maps__set_modules_path_dir(struct maps *mg, const char *dir_name, int
continue;
}
ret = maps__set_modules_path_dir(mg, path, depth + 1);
ret = maps__set_modules_path_dir(maps, path, depth + 1);
if (ret < 0)
goto out;
} else {
......@@ -1329,7 +1329,7 @@ static int maps__set_modules_path_dir(struct maps *mg, const char *dir_name, int
goto out;
if (m.kmod)
ret = maps__set_module_path(mg, path, &m);
ret = maps__set_module_path(maps, path, &m);
zfree(&m.name);
......
......@@ -512,52 +512,50 @@ u64 map__objdump_2mem(struct map *map, u64 ip)
return ip + map->reloc;
}
void maps__init(struct maps *mg, struct machine *machine)
void maps__init(struct maps *maps, struct machine *machine)
{
mg->entries = RB_ROOT;
init_rwsem(&mg->lock);
mg->machine = machine;
mg->last_search_by_name = NULL;
mg->nr_maps = 0;
mg->maps_by_name = NULL;
refcount_set(&mg->refcnt, 1);
maps->entries = RB_ROOT;
init_rwsem(&maps->lock);
maps->machine = machine;
maps->last_search_by_name = NULL;
maps->nr_maps = 0;
maps->maps_by_name = NULL;
refcount_set(&maps->refcnt, 1);
}
static void __maps__free_maps_by_name(struct maps *mg)
static void __maps__free_maps_by_name(struct maps *maps)
{
/*
* Free everything to try to do it from the rbtree in the next search
*/
zfree(&mg->maps_by_name);
mg->nr_maps_allocated = 0;
zfree(&maps->maps_by_name);
maps->nr_maps_allocated = 0;
}
void maps__insert(struct maps *mg, struct map *map)
void maps__insert(struct maps *maps, struct map *map)
{
struct maps *maps = mg;
down_write(&maps->lock);
__maps__insert(maps, map);
++mg->nr_maps;
++maps->nr_maps;
/*
* If we already performed some search by name, then we need to add the just
* inserted map and resort.
*/
if (mg->maps_by_name) {
if (mg->nr_maps > mg->nr_maps_allocated) {
int nr_allocate = mg->nr_maps * 2;
struct map **maps_by_name = realloc(mg->maps_by_name, nr_allocate * sizeof(map));
if (maps->maps_by_name) {
if (maps->nr_maps > maps->nr_maps_allocated) {
int nr_allocate = maps->nr_maps * 2;
struct map **maps_by_name = realloc(maps->maps_by_name, nr_allocate * sizeof(map));
if (maps_by_name == NULL) {
__maps__free_maps_by_name(maps);
return;
}
mg->maps_by_name = maps_by_name;
mg->nr_maps_allocated = nr_allocate;
maps->maps_by_name = maps_by_name;
maps->nr_maps_allocated = nr_allocate;
}
mg->maps_by_name[mg->nr_maps - 1] = map;
maps->maps_by_name[maps->nr_maps - 1] = map;
__maps__sort_by_name(maps);
}
up_write(&maps->lock);
......@@ -569,16 +567,15 @@ static void __maps__remove(struct maps *maps, struct map *map)
map__put(map);
}
void maps__remove(struct maps *mg, struct map *map)
void maps__remove(struct maps *maps, struct map *map)
{
struct maps *maps = mg;
down_write(&maps->lock);
if (mg->last_search_by_name == map)
mg->last_search_by_name = NULL;
if (maps->last_search_by_name == map)
maps->last_search_by_name = NULL;
__maps__remove(maps, map);
--mg->nr_maps;
if (mg->maps_by_name)
--maps->nr_maps;
if (maps->maps_by_name)
__maps__free_maps_by_name(maps);
up_write(&maps->lock);
}
......@@ -607,30 +604,30 @@ bool maps__empty(struct maps *maps)
struct maps *maps__new(struct machine *machine)
{
struct maps *mg = zalloc(sizeof(*mg)), *maps = mg;
struct maps *maps = zalloc(sizeof(*maps));
if (mg != NULL)
if (maps != NULL)
maps__init(maps, machine);
return mg;
return maps;
}
void maps__delete(struct maps *mg)
void maps__delete(struct maps *maps)
{
maps__exit(mg);
unwind__finish_access(mg);
free(mg);
maps__exit(maps);
unwind__finish_access(maps);
free(maps);
}
void maps__put(struct maps *mg)
void maps__put(struct maps *maps)
{
if (mg && refcount_dec_and_test(&mg->refcnt))
maps__delete(mg);
if (maps && refcount_dec_and_test(&maps->refcnt))
maps__delete(maps);
}
struct symbol *maps__find_symbol(struct maps *mg, u64 addr, struct map **mapp)
struct symbol *maps__find_symbol(struct maps *maps, u64 addr, struct map **mapp)
{
struct map *map = maps__find(mg, addr);
struct map *map = maps__find(maps, addr);
/* Ensure map is loaded before using map->map_ip */
if (map != NULL && map__load(map) >= 0) {
......@@ -676,12 +673,12 @@ struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name, st
return sym;
}
int maps__find_ams(struct maps *mg, struct addr_map_symbol *ams)
int maps__find_ams(struct maps *maps, struct addr_map_symbol *ams)
{
if (ams->addr < ams->ms.map->start || ams->addr >= ams->ms.map->end) {
if (mg == NULL)
if (maps == NULL)
return -1;
ams->ms.map = maps__find(mg, ams->addr);
ams->ms.map = maps__find(maps, ams->addr);
if (ams->ms.map == NULL)
return -1;
}
......@@ -819,7 +816,7 @@ int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp)
*/
int maps__clone(struct thread *thread, struct maps *parent)
{
struct maps *mg = thread->maps;
struct maps *maps = thread->maps;
int err = -ENOMEM;
struct map *map;
......@@ -830,11 +827,11 @@ int maps__clone(struct thread *thread, struct maps *parent)
if (new == NULL)
goto out_unlock;
err = unwind__prepare_access(mg, new, NULL);
err = unwind__prepare_access(maps, new, NULL);
if (err)
goto out_unlock;
maps__insert(mg, new);
maps__insert(maps, new);
map__put(new);
}
......
......@@ -49,39 +49,39 @@ struct kmap {
};
struct maps *maps__new(struct machine *machine);
void maps__delete(struct maps *mg);
bool maps__empty(struct maps *mg);
void maps__delete(struct maps *maps);
bool maps__empty(struct maps *maps);
static inline struct maps *maps__get(struct maps *mg)
static inline struct maps *maps__get(struct maps *maps)
{
if (mg)
refcount_inc(&mg->refcnt);
return mg;
if (maps)
refcount_inc(&maps->refcnt);
return maps;
}
void maps__put(struct maps *mg);
void maps__init(struct maps *mg, struct machine *machine);
void maps__exit(struct maps *mg);
void maps__put(struct maps *maps);
void maps__init(struct maps *maps, struct machine *machine);
void maps__exit(struct maps *maps);
int maps__clone(struct thread *thread, struct maps *parent);
size_t maps__fprintf(struct maps *mg, FILE *fp);
size_t maps__fprintf(struct maps *maps, FILE *fp);
void maps__insert(struct maps *mg, struct map *map);
void maps__insert(struct maps *maps, struct map *map);
void maps__remove(struct maps *mg, struct map *map);
void maps__remove(struct maps *maps, struct map *map);
struct symbol *maps__find_symbol(struct maps *mg, u64 addr, struct map **mapp);
struct symbol *maps__find_symbol_by_name(struct maps *mg, const char *name, struct map **mapp);
struct symbol *maps__find_symbol(struct maps *maps, u64 addr, struct map **mapp);
struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name, struct map **mapp);
struct addr_map_symbol;
int maps__find_ams(struct maps *mg, struct addr_map_symbol *ams);
int maps__find_ams(struct maps *maps, struct addr_map_symbol *ams);
int maps__fixup_overlappings(struct maps *mg, struct map *map, FILE *fp);
int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp);
struct map *maps__find_by_name(struct maps *mg, const char *name);
struct map *maps__find_by_name(struct maps *maps, const char *name);
int maps__merge_in(struct maps *kmaps, struct map *new_map);
void __maps__sort_by_name(struct maps *mg);
void __maps__sort_by_name(struct maps *maps);
#endif // __PERF_MAP_GROUPS_H
......@@ -239,9 +239,8 @@ void symbols__fixup_end(struct rb_root_cached *symbols)
curr->end = roundup(curr->start, 4096) + 4096;
}
void maps__fixup_end(struct maps *mg)
void maps__fixup_end(struct maps *maps)
{
struct maps *maps = mg;
struct map *prev = NULL, *curr;
down_write(&maps->lock);
......@@ -1771,68 +1770,67 @@ static int map__strcmp_name(const void *name, const void *b)
return strcmp(name, map->dso->short_name);
}
void __maps__sort_by_name(struct maps *mg)
void __maps__sort_by_name(struct maps *maps)
{
qsort(mg->maps_by_name, mg->nr_maps, sizeof(struct map *), map__strcmp);
qsort(maps->maps_by_name, maps->nr_maps, sizeof(struct map *), map__strcmp);
}
static int map__groups__sort_by_name_from_rbtree(struct maps *mg)
static int map__groups__sort_by_name_from_rbtree(struct maps *maps)
{
struct map *map;
struct map **maps_by_name = realloc(mg->maps_by_name, mg->nr_maps * sizeof(map));
struct map **maps_by_name = realloc(maps->maps_by_name, maps->nr_maps * sizeof(map));
int i = 0;
if (maps_by_name == NULL)
return -1;
mg->maps_by_name = maps_by_name;
mg->nr_maps_allocated = mg->nr_maps;
maps->maps_by_name = maps_by_name;
maps->nr_maps_allocated = maps->nr_maps;
maps__for_each_entry(mg, map)
maps__for_each_entry(maps, map)
maps_by_name[i++] = map;
__maps__sort_by_name(mg);
__maps__sort_by_name(maps);
return 0;
}
static struct map *__maps__find_by_name(struct maps *mg, const char *name)
static struct map *__maps__find_by_name(struct maps *maps, const char *name)
{
struct map **mapp;
if (mg->maps_by_name == NULL &&
map__groups__sort_by_name_from_rbtree(mg))
if (maps->maps_by_name == NULL &&
map__groups__sort_by_name_from_rbtree(maps))
return NULL;
mapp = bsearch(name, mg->maps_by_name, mg->nr_maps, sizeof(*mapp), map__strcmp_name);
mapp = bsearch(name, maps->maps_by_name, maps->nr_maps, sizeof(*mapp), map__strcmp_name);
if (mapp)
return *mapp;
return NULL;
}
struct map *maps__find_by_name(struct maps *mg, const char *name)
struct map *maps__find_by_name(struct maps *maps, const char *name)
{
struct maps *maps = mg;
struct map *map;
down_read(&maps->lock);
if (mg->last_search_by_name && strcmp(mg->last_search_by_name->dso->short_name, name) == 0) {
map = mg->last_search_by_name;
if (maps->last_search_by_name && strcmp(maps->last_search_by_name->dso->short_name, name) == 0) {
map = maps->last_search_by_name;
goto out_unlock;
}
/*
* If we have mg->maps_by_name, then the name isn't in the rbtree,
* as mg->maps_by_name mirrors the rbtree when lookups by name are
* If we have maps->maps_by_name, then the name isn't in the rbtree,
* as maps->maps_by_name mirrors the rbtree when lookups by name are
* made.
*/
map = __maps__find_by_name(mg, name);
if (map || mg->maps_by_name != NULL)
map = __maps__find_by_name(maps, name);
if (map || maps->maps_by_name != NULL)
goto out_unlock;
/* Fallback to traversing the rbtree... */
maps__for_each_entry(maps, map)
if (strcmp(map->dso->short_name, name) == 0) {
mg->last_search_by_name = map;
maps->last_search_by_name = map;
goto out_unlock;
}
......
......@@ -186,7 +186,7 @@ void __symbols__insert(struct rb_root_cached *symbols, struct symbol *sym,
void symbols__insert(struct rb_root_cached *symbols, struct symbol *sym);
void symbols__fixup_duplicate(struct rb_root_cached *symbols);
void symbols__fixup_end(struct rb_root_cached *symbols);
void maps__fixup_end(struct maps *mg);
void maps__fixup_end(struct maps *maps);
typedef int (*mapfn_t)(u64 start, u64 len, u64 pgoff, void *data);
int file__read_maps(int fd, bool exe, mapfn_t mapfn, void *data,
......
......@@ -616,26 +616,26 @@ static unw_accessors_t accessors = {
.get_proc_name = get_proc_name,
};
static int _unwind__prepare_access(struct maps *mg)
static int _unwind__prepare_access(struct maps *maps)
{
mg->addr_space = unw_create_addr_space(&accessors, 0);
if (!mg->addr_space) {
maps->addr_space = unw_create_addr_space(&accessors, 0);
if (!maps->addr_space) {
pr_err("unwind: Can't create unwind address space.\n");
return -ENOMEM;
}
unw_set_caching_policy(mg->addr_space, UNW_CACHE_GLOBAL);
unw_set_caching_policy(maps->addr_space, UNW_CACHE_GLOBAL);
return 0;
}
static void _unwind__flush_access(struct maps *mg)
static void _unwind__flush_access(struct maps *maps)
{
unw_flush_cache(mg->addr_space, 0, 0);
unw_flush_cache(maps->addr_space, 0, 0);
}
static void _unwind__finish_access(struct maps *mg)
static void _unwind__finish_access(struct maps *maps)
{
unw_destroy_addr_space(mg->addr_space);
unw_destroy_addr_space(maps->addr_space);
}
static int get_entries(struct unwind_info *ui, unwind_entry_cb_t cb,
......
......@@ -12,12 +12,12 @@ struct unwind_libunwind_ops __weak *local_unwind_libunwind_ops;
struct unwind_libunwind_ops __weak *x86_32_unwind_libunwind_ops;
struct unwind_libunwind_ops __weak *arm64_unwind_libunwind_ops;
static void unwind__register_ops(struct maps *mg, struct unwind_libunwind_ops *ops)
static void unwind__register_ops(struct maps *maps, struct unwind_libunwind_ops *ops)
{
mg->unwind_libunwind_ops = ops;
maps->unwind_libunwind_ops = ops;
}
int unwind__prepare_access(struct maps *mg, struct map *map, bool *initialized)
int unwind__prepare_access(struct maps *maps, struct map *map, bool *initialized)
{
const char *arch;
enum dso_type dso_type;
......@@ -27,7 +27,7 @@ int unwind__prepare_access(struct maps *mg, struct map *map, bool *initialized)
if (!dwarf_callchain_users)
return 0;
if (mg->addr_space) {
if (maps->addr_space) {
pr_debug("unwind: thread map already set, dso=%s\n",
map->dso->name);
if (initialized)
......@@ -36,14 +36,14 @@ int unwind__prepare_access(struct maps *mg, struct map *map, bool *initialized)
}
/* env->arch is NULL for live-mode (i.e. perf top) */
if (!mg->machine->env || !mg->machine->env->arch)
if (!maps->machine->env || !maps->machine->env->arch)
goto out_register;
dso_type = dso__type(map->dso, mg->machine);
dso_type = dso__type(map->dso, maps->machine);
if (dso_type == DSO__TYPE_UNKNOWN)
return 0;
arch = perf_env__arch(mg->machine->env);
arch = perf_env__arch(maps->machine->env);
if (!strcmp(arch, "x86")) {
if (dso_type != DSO__TYPE_64BIT)
......@@ -58,24 +58,24 @@ int unwind__prepare_access(struct maps *mg, struct map *map, bool *initialized)
return 0;
}
out_register:
unwind__register_ops(mg, ops);
unwind__register_ops(maps, ops);
err = mg->unwind_libunwind_ops->prepare_access(mg);
err = maps->unwind_libunwind_ops->prepare_access(maps);
if (initialized)
*initialized = err ? false : true;
return err;
}
void unwind__flush_access(struct maps *mg)
void unwind__flush_access(struct maps *maps)
{
if (mg->unwind_libunwind_ops)
mg->unwind_libunwind_ops->flush_access(mg);
if (maps->unwind_libunwind_ops)
maps->unwind_libunwind_ops->flush_access(maps);
}
void unwind__finish_access(struct maps *mg)
void unwind__finish_access(struct maps *maps)
{
if (mg->unwind_libunwind_ops)
mg->unwind_libunwind_ops->finish_access(mg);
if (maps->unwind_libunwind_ops)
maps->unwind_libunwind_ops->finish_access(maps);
}
int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
......
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