[tip:perf/core] perf machine: Add method for common kernel_map( FUNCTION) operation

From: tip-bot for Arnaldo Carvalho de Melo
Date: Thu Oct 01 2015 - 03:12:28 EST

Commit-ID: a5e813c68649366aaa3f785772b00ea6ccad7b8d
Gitweb: http://git.kernel.org/tip/a5e813c68649366aaa3f785772b00ea6ccad7b8d
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Wed, 30 Sep 2015 11:54:04 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 30 Sep 2015 18:34:29 -0300

perf machine: Add method for common kernel_map(FUNCTION) operation

And it is also a step in the direction of killing the separation of data
and text maps in map_groups.

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-rrds86kb3wx5wk8v38v56gw8@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-kmem.c | 2 +-
tools/perf/builtin-report.c | 2 +-
tools/perf/tests/code-reading.c | 2 +-
tools/perf/tests/vmlinux-kallsyms.c | 4 ++--
tools/perf/util/event.c | 4 ++--
tools/perf/util/intel-pt.c | 2 +-
tools/perf/util/machine.c | 15 +++++++--------
tools/perf/util/machine.h | 8 +++++++-
tools/perf/util/map.c | 2 +-
tools/perf/util/probe-event.c | 4 ++--
10 files changed, 25 insertions(+), 20 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index b122c4e..93ce665 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__kernel_map(machine, MAP__FUNCTION)
+ kernel_map = machine__kernel_map(machine);
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 7962605..b562363 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 = machine__kernel_map(&rep->session->machines.host, MAP__FUNCTION);
+ struct map *kernel_map = machine__kernel_map(&rep->session->machines.host);
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 47017a8..49b1959 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__kernel_map(machine, MAP__FUNCTION);
+ map = machine__kernel_map(machine);
ret = map__load(map, NULL);
if (ret < 0) {
pr_debug("map__load failed\n");
diff --git a/tools/perf/tests/vmlinux-kallsyms.c b/tools/perf/tests/vmlinux-kallsyms.c
index b34c5fc..d677e01 100644
--- a/tools/perf/tests/vmlinux-kallsyms.c
+++ b/tools/perf/tests/vmlinux-kallsyms.c
@@ -68,7 +68,7 @@ int test__vmlinux_matches_kallsyms(void)
* to see if the running kernel was relocated by checking if it has the
* same value in the vmlinux file we load.
*/
- kallsyms_map = machine__kernel_map(&kallsyms, type);
+ kallsyms_map = machine__kernel_map(&kallsyms);

/*
* Step 5:
@@ -80,7 +80,7 @@ int test__vmlinux_matches_kallsyms(void)
goto out;
}

- vmlinux_map = machine__kernel_map(&vmlinux, type);
+ vmlinux_map = machine__kernel_map(&vmlinux);

/*
* Step 6:
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 281ab7f..cb98b5a 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -649,7 +649,7 @@ 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 = machine__kernel_map(machine, MAP__FUNCTION);
+ struct map *map = machine__kernel_map(machine);
struct kmap *kmap;
int err;
union perf_event *event;
@@ -1007,7 +1007,7 @@ int perf_event__preprocess_sample(const union perf_event *event,
* it now.
*/
if (cpumode == PERF_RECORD_MISC_KERNEL &&
- machine__kernel_map(machine, MAP__FUNCTION) == NULL)
+ machine__kernel_map(machine) == NULL)
machine__create_kernel_maps(machine);

thread__find_addr_map(thread, cpumode, MAP__FUNCTION, sample->ip, al);
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index 03ff072..97f963a 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -1268,7 +1268,7 @@ static u64 intel_pt_switch_ip(struct intel_pt *pt, u64 *ptss_ip)
if (ptss_ip)
*ptss_ip = 0;

- map = machine__kernel_map(machine, MAP__FUNCTION);
+ map = machine__kernel_map(machine);
if (!map)
return 0;

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index d71b7dc..76fe167 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__kernel_map(machine, MAP__FUNCTION)->dso;
+ struct dso *kdso = machine__kernel_map(machine)->dso;

if (kdso->has_build_id) {
char filename[PATH_MAX];
@@ -750,7 +750,7 @@ 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;
- map = machine__kernel_map(machine, type);
+ map = __machine__kernel_map(machine, type);
kmap = map__kmap(map);
if (!kmap)
return -1;
@@ -768,7 +768,7 @@ 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);
+ struct map *map = __machine__kernel_map(machine, type);

if (map == NULL)
continue;
@@ -868,7 +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__kernel_map(machine, MAP__FUNCTION);
+ struct map *map = machine__kernel_map(machine);
int ret = dso__load_kallsyms(map->dso, filename, map, filter);

if (ret > 0) {
@@ -887,7 +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__kernel_map(machine, MAP__FUNCTION);
+ struct map *map = machine__kernel_map(machine);
int ret = dso__load_vmlinux_path(map->dso, map, filter);

if (ret > 0)
@@ -1245,8 +1245,7 @@ static int machine__process_kernel_mmap_event(struct machine *machine,
/*
* preload dso of guest kernel and modules
*/
- dso__load(kernel, machine__kernel_map(machine, MAP__FUNCTION),
- NULL);
+ dso__load(kernel, machine__kernel_map(machine), NULL);
}
}
return 0;
@@ -1998,7 +1997,7 @@ int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,

int machine__get_kernel_start(struct machine *machine)
{
- struct map *map = machine__kernel_map(machine, MAP__FUNCTION);
+ struct map *map = machine__kernel_map(machine);
int err = 0;

/*
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index 9dfc428..2c2b443 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -48,11 +48,17 @@ struct machine {
};

static inline
-struct map *machine__kernel_map(struct machine *machine, enum map_type type)
+struct map *__machine__kernel_map(struct machine *machine, enum map_type type)
{
return machine->vmlinux_maps[type];
}

+static inline
+struct map *machine__kernel_map(struct machine *machine)
+{
+ return __machine__kernel_map(machine, MAP__FUNCTION);
+}
+
int machine__get_kernel_start(struct machine *machine);

static inline u64 machine__kernel_start(struct machine *machine)
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 2a9d859..4e38c39 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 machine__kernel_map(map->groups->machine, 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 a0b3f3c..8b9a680 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -126,7 +126,7 @@ 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);
+ struct map *map = machine__kernel_map(host_machine);

if (map__load(map, NULL) < 0)
return NULL;
@@ -282,7 +282,7 @@ static int kernel_get_module_dso(const char *module, struct dso **pdso)
return -ENOENT;
}

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

vmlinux_name = symbol_conf.vmlinux_name;
--
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