[tip:perf/core] perf thread: Ditch __thread__find_symbol()

From: tip-bot for Arnaldo Carvalho de Melo
Date: Wed May 02 2018 - 13:57:12 EST


Commit-ID: 117d3c2474a24ab842af00972598c25abffee1e6
Gitweb: https://git.kernel.org/tip/117d3c2474a24ab842af00972598c25abffee1e6
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Wed, 25 Apr 2018 18:16:53 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 26 Apr 2018 13:47:17 -0300

perf thread: Ditch __thread__find_symbol()

Simulate having all symbols in just one tree by searching the still
existing two trees.

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: https://lkml.kernel.org/n/tip-uss70e8tvzzbzs326330t83q@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-trace.c | 2 +-
tools/perf/util/event.c | 8 ++++----
tools/perf/util/machine.c | 10 +---------
tools/perf/util/thread.h | 10 ++--------
4 files changed, 8 insertions(+), 22 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index afec6f9ffd89..c7effcfc40ed 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2036,7 +2036,7 @@ static int trace__pgfault(struct trace *trace,

fprintf(trace->output, "] => ");

- __thread__find_symbol(thread, sample->cpumode, MAP__VARIABLE, sample->addr, &al);
+ thread__find_symbol(thread, sample->cpumode, sample->addr, &al);

if (!al.map) {
thread__find_symbol(thread, sample->cpumode, sample->addr, &al);
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 241d3c827fae..7b67771cd478 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -1565,12 +1565,12 @@ try_again:
return al->map;
}

-struct symbol *__thread__find_symbol(struct thread *thread, u8 cpumode,
- enum map_type type, u64 addr,
- struct addr_location *al)
+struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
+ u64 addr, struct addr_location *al)
{
al->sym = NULL;
- if (__thread__find_map(thread, cpumode, type, addr, al))
+ if (__thread__find_map(thread, cpumode, MAP__FUNCTION, addr, al) ||
+ __thread__find_map(thread, cpumode, MAP__VARIABLE, addr, al))
al->sym = map__find_symbol(al->map, al->addr);
return al->sym;
}
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index a00e82b83e0a..3422ef67ec21 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1677,15 +1677,7 @@ static void ip__resolve_data(struct thread *thread,

memset(&al, 0, sizeof(al));

- __thread__find_symbol(thread, m, MAP__VARIABLE, addr, &al);
- if (al.map == NULL) {
- /*
- * some shared data regions have execute bit set which puts
- * their mapping in the MAP__FUNCTION type array.
- * Check there as a fallback option before dropping the sample.
- */
- thread__find_symbol(thread, m, addr, &al);
- }
+ thread__find_symbol(thread, m, addr, &al);

ams->addr = addr;
ams->al_addr = al.addr;
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index d6209c73f32d..54aa24d6151e 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -101,14 +101,8 @@ static inline struct map *thread__find_map(struct thread *thread, u8 cpumode,
return __thread__find_map(thread, cpumode, MAP__FUNCTION, addr, al);
}

-struct symbol *__thread__find_symbol(struct thread *thread, u8 cpumode, enum map_type type,
- u64 addr, struct addr_location *al);
-
-static inline struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
- u64 addr, struct addr_location *al)
-{
- return __thread__find_symbol(thread, cpumode, MAP__FUNCTION, addr, al);
-}
+struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
+ u64 addr, struct addr_location *al);

void thread__find_cpumode_addr_location(struct thread *thread, u64 addr,
struct addr_location *al);