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Date: Wed, 2 May 2018 12:19:06 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: Clark Williams <williams@...hat.com>, linux-kernel@...r.kernel.org,
linux-perf-users@...r.kernel.org,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Adrian Hunter <adrian.hunter@...el.com>,
David Ahern <dsahern@...il.com>, Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Wang Nan <wangnan0@...wei.com>
Subject: [PATCH 16/52] perf thread: Make thread__find_map() return the map
From: Arnaldo Carvalho de Melo <acme@...hat.com>
It was returning the searched map just on the addr_location passed, with
the function itself returning void.
Make it return the map so that we can make the code more compact.
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Wang Nan <wangnan0@...wei.com>
Link: https://lkml.kernel.org/n/tip-tzlrrzdeoof4i6ktyqv1t6ks@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/builtin-inject.c | 4 +---
tools/perf/builtin-script.c | 14 ++++++--------
tools/perf/tests/code-reading.c | 3 +--
tools/perf/util/build-id.c | 4 +---
tools/perf/util/cs-etm.c | 4 +---
tools/perf/util/event.c | 16 ++++++++--------
tools/perf/util/intel-bts.c | 3 +--
tools/perf/util/intel-pt.c | 6 ++----
tools/perf/util/thread.h | 10 +++++-----
tools/perf/util/unwind-libdw.c | 3 +--
tools/perf/util/unwind-libunwind-local.c | 3 +--
11 files changed, 28 insertions(+), 42 deletions(-)
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 92677d8f9eae..a3b346359ba0 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -440,9 +440,7 @@ static int perf_event__inject_buildid(struct perf_tool *tool,
goto repipe;
}
- thread__find_map(thread, sample->cpumode, sample->ip, &al);
-
- if (al.map != NULL) {
+ if (thread__find_map(thread, sample->cpumode, sample->ip, &al)) {
if (!al.map->dso->hit) {
al.map->dso->hit = 1;
if (map__load(al.map) >= 0) {
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index ffd02faee87b..07cb083ac89c 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -809,12 +809,12 @@ static int perf_sample__fprintf_brstackoff(struct perf_sample *sample,
from = br->entries[i].from;
to = br->entries[i].to;
- thread__find_map(thread, sample->cpumode, from, &alf);
- if (alf.map && !alf.map->dso->adjust_symbols)
+ if (thread__find_map(thread, sample->cpumode, from, &alf) &&
+ !alf.map->dso->adjust_symbols)
from = map__map_ip(alf.map, from);
- thread__find_map(thread, sample->cpumode, to, &alt);
- if (alt.map && !alt.map->dso->adjust_symbols)
+ if (thread__find_map(thread, sample->cpumode, to, &alt) &&
+ !alt.map->dso->adjust_symbols)
to = map__map_ip(alt.map, to);
printed += fprintf(fp, " 0x%"PRIx64, from);
@@ -877,8 +877,7 @@ static int grab_bb(u8 *buffer, u64 start, u64 end,
return 0;
}
- thread__find_map(thread, *cpumode, start, &al);
- if (!al.map || !al.map->dso) {
+ if (!thread__find_map(thread, *cpumode, start, &al) || !al.map->dso) {
pr_debug("\tcannot resolve %" PRIx64 "-%" PRIx64 "\n", start, end);
return 0;
}
@@ -928,8 +927,7 @@ static int ip__fprintf_sym(uint64_t addr, struct thread *thread,
memset(&al, 0, sizeof(al));
- thread__find_map(thread, cpumode, addr, &al);
- if (!al.map)
+ if (!thread__find_map(thread, cpumode, addr, &al))
__thread__find_map(thread, cpumode, MAP__VARIABLE, addr, &al);
if ((*lastsym) && al.addr >= (*lastsym)->start && al.addr < (*lastsym)->end)
return 0;
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 5b0a55499486..afa4ce21ba7c 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -236,8 +236,7 @@ static int read_object_code(u64 addr, size_t len, u8 cpumode,
pr_debug("Reading object code for memory address: %#"PRIx64"\n", addr);
- thread__find_map(thread, cpumode, addr, &al);
- if (!al.map || !al.map->dso) {
+ if (!thread__find_map(thread, cpumode, addr, &al) || !al.map->dso) {
if (cpumode == PERF_RECORD_MISC_HYPERVISOR) {
pr_debug("Hypervisor address can not be resolved - skipping\n");
return 0;
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index b512dc8fa6c3..04b1d53e4bf9 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -47,9 +47,7 @@ int build_id__mark_dso_hit(struct perf_tool *tool __maybe_unused,
return -1;
}
- thread__find_map(thread, sample->cpumode, sample->ip, &al);
-
- if (al.map != NULL)
+ if (thread__find_map(thread, sample->cpumode, sample->ip, &al))
al.map->dso->hit = 1;
thread__put(thread);
diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c
index 8fe573d040b6..6533b1adb50b 100644
--- a/tools/perf/util/cs-etm.c
+++ b/tools/perf/util/cs-etm.c
@@ -269,9 +269,7 @@ static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u64 address,
thread = etmq->etm->unknown_thread;
}
- thread__find_map(thread, cpumode, address, &al);
-
- if (!al.map || !al.map->dso)
+ if (!thread__find_map(thread, cpumode, address, &al) || !al.map->dso)
return 0;
if (al.map->dso->data.status == DSO_DATA_STATUS_ERROR &&
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 2d860fbeb227..48e4b252f6ff 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -1489,8 +1489,8 @@ int perf_event__process(struct perf_tool *tool __maybe_unused,
return machine__process_event(machine, event, sample);
}
-void __thread__find_map(struct thread *thread, u8 cpumode, enum map_type type,
- u64 addr, struct addr_location *al)
+struct map *__thread__find_map(struct thread *thread, u8 cpumode, enum map_type type,
+ u64 addr, struct addr_location *al)
{
struct map_groups *mg = thread->mg;
struct machine *machine = mg->machine;
@@ -1504,7 +1504,7 @@ void __thread__find_map(struct thread *thread, u8 cpumode, enum map_type type,
if (machine == NULL) {
al->map = NULL;
- return;
+ return NULL;
}
if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) {
@@ -1532,7 +1532,7 @@ void __thread__find_map(struct thread *thread, u8 cpumode, enum map_type type,
!perf_host)
al->filtered |= (1 << HIST_FILTER__HOST);
- return;
+ return NULL;
}
try_again:
al->map = map_groups__find(mg, type, al->addr);
@@ -1562,14 +1562,15 @@ void __thread__find_map(struct thread *thread, u8 cpumode, enum map_type type,
map__load(al->map);
al->addr = al->map->map_ip(al->map, al->addr);
}
+
+ return al->map;
}
void __thread__find_symbol(struct thread *thread, u8 cpumode,
enum map_type type, u64 addr,
struct addr_location *al)
{
- __thread__find_map(thread, cpumode, type, addr, al);
- if (al->map != NULL)
+ if (__thread__find_map(thread, cpumode, type, addr, al))
al->sym = map__find_symbol(al->map, al->addr);
else
al->sym = NULL;
@@ -1668,8 +1669,7 @@ bool sample_addr_correlates_sym(struct perf_event_attr *attr)
void thread__resolve(struct thread *thread, struct addr_location *al,
struct perf_sample *sample)
{
- thread__find_map(thread, sample->cpumode, sample->addr, al);
- if (!al->map) {
+ if (!thread__find_map(thread, sample->cpumode, sample->addr, al)) {
__thread__find_map(thread, sample->cpumode, MAP__VARIABLE,
sample->addr, al);
}
diff --git a/tools/perf/util/intel-bts.c b/tools/perf/util/intel-bts.c
index ea0ce8572bf2..7f0c83b6332b 100644
--- a/tools/perf/util/intel-bts.c
+++ b/tools/perf/util/intel-bts.c
@@ -335,8 +335,7 @@ static int intel_bts_get_next_insn(struct intel_bts_queue *btsq, u64 ip)
if (!thread)
return -1;
- thread__find_map(thread, cpumode, ip, &al);
- if (!al.map || !al.map->dso)
+ if (!thread__find_map(thread, cpumode, ip, &al) || !al.map->dso)
goto out_put;
len = dso__data_read_addr(al.map->dso, al.map, machine, ip, buf,
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index 441e681a46a0..a272b35f6c5a 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -442,8 +442,7 @@ static int intel_pt_walk_next_insn(struct intel_pt_insn *intel_pt_insn,
}
while (1) {
- thread__find_map(thread, cpumode, *ip, &al);
- if (!al.map || !al.map->dso)
+ if (!thread__find_map(thread, cpumode, *ip, &al) || !al.map->dso)
return -EINVAL;
if (al.map->dso->data.status == DSO_DATA_STATUS_ERROR &&
@@ -596,8 +595,7 @@ static int __intel_pt_pgd_ip(uint64_t ip, void *data)
if (!thread)
return -EINVAL;
- thread__find_map(thread, cpumode, ip, &al);
- if (!al.map || !al.map->dso)
+ if (!thread__find_map(thread, cpumode, ip, &al) || !al.map->dso)
return -EINVAL;
offset = al.map->map_ip(al.map, ip);
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index b69e65c821f9..1961e4bc1c2c 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -92,13 +92,13 @@ size_t thread__fprintf(struct thread *thread, FILE *fp);
struct thread *thread__main_thread(struct machine *machine, struct thread *thread);
-void __thread__find_map(struct thread *thread, u8 cpumode, enum map_type type,
- u64 addr, struct addr_location *al);
+struct map *__thread__find_map(struct thread *thread, u8 cpumode, enum map_type type,
+ u64 addr, struct addr_location *al);
-static inline void thread__find_map(struct thread *thread, u8 cpumode,
- u64 addr, struct addr_location *al)
+static inline struct map *thread__find_map(struct thread *thread, u8 cpumode,
+ u64 addr, struct addr_location *al)
{
- __thread__find_map(thread, cpumode, MAP__FUNCTION, addr, al);
+ return __thread__find_map(thread, cpumode, MAP__FUNCTION, addr, al);
}
void __thread__find_symbol(struct thread *thread, u8 cpumode, enum map_type type,
diff --git a/tools/perf/util/unwind-libdw.c b/tools/perf/util/unwind-libdw.c
index bdc22f1864df..17401922cd42 100644
--- a/tools/perf/util/unwind-libdw.c
+++ b/tools/perf/util/unwind-libdw.c
@@ -104,8 +104,7 @@ static int access_dso_mem(struct unwind_info *ui, Dwarf_Addr addr,
struct addr_location al;
ssize_t size;
- thread__find_map(ui->thread, PERF_RECORD_MISC_USER, addr, &al);
- if (!al.map) {
+ if (!thread__find_map(ui->thread, PERF_RECORD_MISC_USER, addr, &al)) {
/*
* We've seen cases (softice) where DWARF unwinder went
* through non executable mmaps, which we need to lookup
diff --git a/tools/perf/util/unwind-libunwind-local.c b/tools/perf/util/unwind-libunwind-local.c
index 0007c64f3220..4662590ef091 100644
--- a/tools/perf/util/unwind-libunwind-local.c
+++ b/tools/perf/util/unwind-libunwind-local.c
@@ -367,8 +367,7 @@ static struct map *find_map(unw_word_t ip, struct unwind_info *ui)
{
struct addr_location al;
- thread__find_map(ui->thread, PERF_RECORD_MISC_USER, ip, &al);
- if (!al.map) {
+ if (!thread__find_map(ui->thread, PERF_RECORD_MISC_USER, ip, &al)) {
/*
* We've seen cases (softice) where DWARF unwinder went
* through non executable mmaps, which we need to lookup
--
2.14.3
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