[tip: perf/urgent] perf maps: Rename 'mg' variables to 'maps'

From: tip-bot2 for Arnaldo Carvalho de Melo
Date: Fri Nov 29 2019 - 01:03:53 EST


The following commit has been merged into the perf/urgent branch of tip:

Commit-ID: 9a29ceee6bb14aeb58ab2222c8e792576fe90fb8
Gitweb: https://git.kernel.org/tip/9a29ceee6bb14aeb58ab2222c8e792576fe90fb8
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Mon, 25 Nov 2019 22:21:28 -03:00
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitterDate: Tue, 26 Nov 2019 11:07:46 -03:00

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

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

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Link: https://lkml.kernel.org/n/tip-z8d14wrw393a0fbvmnk1bqd9@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/tests/map_groups.c | 18 ++---
tools/perf/tests/thread-mg-share.c | 18 ++---
tools/perf/util/event.c | 12 +--
tools/perf/util/machine.c | 10 +--
tools/perf/util/map.c | 89 +++++++++++------------
tools/perf/util/map_groups.h | 36 ++++-----
tools/perf/util/symbol.c | 44 +++++------
tools/perf/util/symbol.h | 2 +-
tools/perf/util/unwind-libunwind-local.c | 16 ++--
tools/perf/util/unwind-libunwind.c | 30 ++++----
10 files changed, 135 insertions(+), 140 deletions(-)

diff --git a/tools/perf/tests/map_groups.c b/tools/perf/tests/map_groups.c
index db806e5..9df1d14 100644
--- a/tools/perf/tests/map_groups.c
+++ b/tools/perf/tests/map_groups.c
@@ -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;
}
diff --git a/tools/perf/tests/thread-mg-share.c b/tools/perf/tests/thread-mg-share.c
index 6032061..e3b0d69 100644
--- a/tools/perf/tests/thread-mg-share.c
+++ b/tools/perf/tests/thread-mg-share.c
@@ -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);

diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index fc3da38..c5447ff 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -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
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index c1ae5e6..416d174 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -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);

diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 39bfed4..fdd5bdd 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -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 @@ out:
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 @@ out:
*/
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);
}

diff --git a/tools/perf/util/map_groups.h b/tools/perf/util/map_groups.h
index 8a45994..ada2f40 100644
--- a/tools/perf/util/map_groups.h
+++ b/tools/perf/util/map_groups.h
@@ -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
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index c705636..3b379b1 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -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;
}

diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 29c4ea4..93fc43d 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -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,
diff --git a/tools/perf/util/unwind-libunwind-local.c b/tools/perf/util/unwind-libunwind-local.c
index 515131e..b4649f5 100644
--- a/tools/perf/util/unwind-libunwind-local.c
+++ b/tools/perf/util/unwind-libunwind-local.c
@@ -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,
diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c
index 4003ae8..e89a547 100644
--- a/tools/perf/util/unwind-libunwind.c
+++ b/tools/perf/util/unwind-libunwind.c
@@ -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,