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Subject[PATCH 06/16] perf machine: Use machine__kernel_map() thoroughly
Date
From: Arnaldo Carvalho de Melo <acme@redhat.com>

In places where we were using its open coded equivalent.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-khkdugcdoqy3tkszm3jdxgbe@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-kmem.c | 2 +-
tools/perf/builtin-report.c | 2 +-
tools/perf/tests/code-reading.c | 2 +-
tools/perf/util/event.c | 7 +++----
tools/perf/util/machine.c | 23 ++++++++++++-----------
tools/perf/util/map.c | 2 +-
tools/perf/util/probe-event.c | 7 ++++---
7 files changed, 23 insertions(+), 22 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 23b1faaaa4cc..b122c4e0818e 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -329,7 +329,7 @@ static int build_alloc_func_list(void)
return -EINVAL;
}

- kernel_map = machine->vmlinux_maps[MAP__FUNCTION];
+ kernel_map = machine__kernel_map(machine, MAP__FUNCTION)
if (map__load(kernel_map, NULL) < 0) {
pr_err("cannot load kernel map\n");
return -ENOENT;
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 37c9f5125887..7962605b3576 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -387,7 +387,7 @@ static int perf_evlist__tty_browse_hists(struct perf_evlist *evlist,

static void report__warn_kptr_restrict(const struct report *rep)
{
- struct map *kernel_map = rep->session->machines.host.vmlinux_maps[MAP__FUNCTION];
+ struct map *kernel_map = machine__kernel_map(&rep->session->machines.host, MAP__FUNCTION);
struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL;

if (kernel_map == NULL ||
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 2d21183bd661..47017a8aa685 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -473,7 +473,7 @@ static int do_test_code_reading(bool try_kcore)
symbol_conf.kallsyms_name = "/proc/kallsyms";

/* Load kernel map */
- map = machine->vmlinux_maps[MAP__FUNCTION];
+ map = machine__kernel_map(machine, MAP__FUNCTION);
ret = map__load(map, NULL);
if (ret < 0) {
pr_debug("map__load failed\n");
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index b1bb348ec3b6..281ab7f87446 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -649,12 +649,12 @@ int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
size_t size;
const char *mmap_name;
char name_buff[PATH_MAX];
- struct map *map;
+ struct map *map = machine__kernel_map(machine, MAP__FUNCTION);
struct kmap *kmap;
int err;
union perf_event *event;

- if (machine->vmlinux_maps[0] == NULL)
+ if (map == NULL)
return -1;

/*
@@ -680,7 +680,6 @@ int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL;
}

- map = machine->vmlinux_maps[MAP__FUNCTION];
kmap = map__kmap(map);
size = snprintf(event->mmap.filename, sizeof(event->mmap.filename),
"%s%s", mmap_name, kmap->ref_reloc_sym->name) + 1;
@@ -1008,7 +1007,7 @@ int perf_event__preprocess_sample(const union perf_event *event,
* it now.
*/
if (cpumode == PERF_RECORD_MISC_KERNEL &&
- machine->vmlinux_maps[MAP__FUNCTION] == NULL)
+ machine__kernel_map(machine, MAP__FUNCTION) == NULL)
machine__create_kernel_maps(machine);

thread__find_addr_map(thread, cpumode, MAP__FUNCTION, sample->ip, al);
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index fd1efeafb343..d71b7dcf4579 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -625,7 +625,7 @@ size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp)
{
int i;
size_t printed = 0;
- struct dso *kdso = machine->vmlinux_maps[MAP__FUNCTION]->dso;
+ struct dso *kdso = machine__kernel_map(machine, MAP__FUNCTION)->dso;

if (kdso->has_build_id) {
char filename[PATH_MAX];
@@ -741,6 +741,7 @@ int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel)

for (type = 0; type < MAP__NR_TYPES; ++type) {
struct kmap *kmap;
+ struct map *map;

machine->vmlinux_maps[type] = map__new2(start, kernel, type);
if (machine->vmlinux_maps[type] == NULL)
@@ -749,13 +750,13 @@ int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel)
machine->vmlinux_maps[type]->map_ip =
machine->vmlinux_maps[type]->unmap_ip =
identity__map_ip;
- kmap = map__kmap(machine->vmlinux_maps[type]);
+ map = machine__kernel_map(machine, type);
+ kmap = map__kmap(map);
if (!kmap)
return -1;

kmap->kmaps = &machine->kmaps;
- map_groups__insert(&machine->kmaps,
- machine->vmlinux_maps[type]);
+ map_groups__insert(&machine->kmaps, map);
}

return 0;
@@ -767,13 +768,13 @@ void machine__destroy_kernel_maps(struct machine *machine)

for (type = 0; type < MAP__NR_TYPES; ++type) {
struct kmap *kmap;
+ struct map *map = machine__kernel_map(machine, type);

- if (machine->vmlinux_maps[type] == NULL)
+ if (map == NULL)
continue;

- kmap = map__kmap(machine->vmlinux_maps[type]);
- map_groups__remove(&machine->kmaps,
- machine->vmlinux_maps[type]);
+ kmap = map__kmap(map);
+ map_groups__remove(&machine->kmaps, map);
if (kmap && kmap->ref_reloc_sym) {
/*
* ref_reloc_sym is shared among all maps, so free just
@@ -867,7 +868,7 @@ int machines__create_kernel_maps(struct machines *machines, pid_t pid)
int machine__load_kallsyms(struct machine *machine, const char *filename,
enum map_type type, symbol_filter_t filter)
{
- struct map *map = machine->vmlinux_maps[type];
+ struct map *map = machine__kernel_map(machine, MAP__FUNCTION);
int ret = dso__load_kallsyms(map->dso, filename, map, filter);

if (ret > 0) {
@@ -886,7 +887,7 @@ int machine__load_kallsyms(struct machine *machine, const char *filename,
int machine__load_vmlinux_path(struct machine *machine, enum map_type type,
symbol_filter_t filter)
{
- struct map *map = machine->vmlinux_maps[type];
+ struct map *map = machine__kernel_map(machine, MAP__FUNCTION);
int ret = dso__load_vmlinux_path(map->dso, map, filter);

if (ret > 0)
@@ -1244,7 +1245,7 @@ static int machine__process_kernel_mmap_event(struct machine *machine,
/*
* preload dso of guest kernel and modules
*/
- dso__load(kernel, machine->vmlinux_maps[MAP__FUNCTION],
+ dso__load(kernel, machine__kernel_map(machine, MAP__FUNCTION),
NULL);
}
}
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 622c2c9a1e65..2a9d859d30b9 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -235,7 +235,7 @@ struct map *map__new2(u64 start, struct dso *dso, enum map_type type)
*/
bool __map__is_kernel(const struct map *map)
{
- return map->groups->machine->vmlinux_maps[map->type] == map;
+ return machine__kernel_map(map->groups->machine, map->type) == map;
}

static void map__exit(struct map *map)
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 7fb0533ab18c..a0b3f3c886f0 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -126,11 +126,12 @@ static struct ref_reloc_sym *kernel_get_ref_reloc_sym(void)
{
/* kmap->ref_reloc_sym should be set if host_machine is initialized */
struct kmap *kmap;
+ struct map *map = machine__kernel_map(host_machine, MAP__FUNCTION);

- if (map__load(host_machine->vmlinux_maps[MAP__FUNCTION], NULL) < 0)
+ if (map__load(map, NULL) < 0)
return NULL;

- kmap = map__kmap(host_machine->vmlinux_maps[MAP__FUNCTION]);
+ kmap = map__kmap(map);
if (!kmap)
return NULL;
return kmap->ref_reloc_sym;
@@ -281,7 +282,7 @@ static int kernel_get_module_dso(const char *module, struct dso **pdso)
return -ENOENT;
}

- map = host_machine->vmlinux_maps[MAP__FUNCTION];
+ map = machine__kernel_map(host_machine, MAP__FUNCTION);
dso = map->dso;

vmlinux_name = symbol_conf.vmlinux_name;
--
2.1.0


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