Commit-ID: dd8c17a5fe80148aab8844e8774cf341212a4eb1
Gitweb: http://git.kernel.org/tip/dd8c17a5fe80148aab8844e8774cf341212a4eb1
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Thu, 23 Oct 2014 16:42:19 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 29 Oct 2014 10:32:46 -0200
perf callchains: Use thread->mg->machine
The unwind__get_entries() already receives the thread parameter, from where it can
obtain the matching machine structure, shorten the signature.
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Don Zickus <dzickus@xxxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jean Pihet <jean.pihet@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-isjc6bm8mv4612mhi6af64go@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/tests/dwarf-unwind.c | 18 +++++++++---------
tools/perf/util/machine.c | 2 +-
tools/perf/util/unwind-libdw.c | 4 ++--
tools/perf/util/unwind-libunwind.c | 4 ++--
tools/perf/util/unwind.h | 2 --
5 files changed, 14 insertions(+), 16 deletions(-)
diff --git a/tools/perf/tests/dwarf-unwind.c b/tools/perf/tests/dwarf-unwind.c
index fc25e57..ab28cca 100644
--- a/tools/perf/tests/dwarf-unwind.c
+++ b/tools/perf/tests/dwarf-unwind.c
@@ -59,7 +59,7 @@ static int unwind_entry(struct unwind_entry *entry, void *arg)
}
__attribute__ ((noinline))
-static int unwind_thread(struct thread *thread, struct machine *machine)
+static int unwind_thread(struct thread *thread)
{
struct perf_sample sample;
unsigned long cnt = 0;
@@ -72,7 +72,7 @@ static int unwind_thread(struct thread *thread, struct machine *machine)
goto out;
}
- err = unwind__get_entries(unwind_entry, &cnt, machine, thread,
+ err = unwind__get_entries(unwind_entry, &cnt, thread,
&sample, MAX_STACK);
if (err)
pr_debug("unwind failed\n");
@@ -89,21 +89,21 @@ static int unwind_thread(struct thread *thread, struct machine *machine)
}
__attribute__ ((noinline))
-static int krava_3(struct thread *thread, struct machine *machine)
+static int krava_3(struct thread *thread)
{
- return unwind_thread(thread, machine);
+ return unwind_thread(thread);
}
__attribute__ ((noinline))
-static int krava_2(struct thread *thread, struct machine *machine)
+static int krava_2(struct thread *thread)
{
- return krava_3(thread, machine);
+ return krava_3(thread);
}
__attribute__ ((noinline))
-static int krava_1(struct thread *thread, struct machine *machine)
+static int krava_1(struct thread *thread)
{
- return krava_2(thread, machine);
+ return krava_2(thread);
}
int test__dwarf_unwind(void)
@@ -137,7 +137,7 @@ int test__dwarf_unwind(void)
goto out;
}
- err = krava_1(thread, machine);
+ err = krava_1(thread);
out:
machine__delete_threads(machine);
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index fd192e4..51a6303 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1486,7 +1486,7 @@ int thread__resolve_callchain(struct thread *thread,
(!sample->user_stack.size))
return 0;
- return unwind__get_entries(unwind_entry, &callchain_cursor, thread->mg->machine,
+ return unwind__get_entries(unwind_entry, &callchain_cursor,
thread, sample, max_stack);
}
diff --git a/tools/perf/util/unwind-libdw.c b/tools/perf/util/unwind-libdw.c
index f24b350..2dcfe9a 100644
--- a/tools/perf/util/unwind-libdw.c
+++ b/tools/perf/util/unwind-libdw.c
@@ -164,14 +164,14 @@ frame_callback(Dwfl_Frame *state, void *arg)
}
int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
- struct machine *machine, struct thread *thread,
+ struct thread *thread,
struct perf_sample *data,
int max_stack)
{
struct unwind_info ui = {
.sample = data,
.thread = thread,
- .machine = machine,
+ .machine = thread->mg->machine,
.cb = cb,
.arg = arg,
.max_stack = max_stack,
diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c
index 29acc8c..371219a 100644
--- a/tools/perf/util/unwind-libunwind.c
+++ b/tools/perf/util/unwind-libunwind.c
@@ -592,14 +592,14 @@ static int get_entries(struct unwind_info *ui, unwind_entry_cb_t cb,
}
int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
- struct machine *machine, struct thread *thread,
+ struct thread *thread,
struct perf_sample *data, int max_stack)
{
u64 ip;
struct unwind_info ui = {
.sample = data,
.thread = thread,
- .machine = machine,
+ .machine = thread->mg->machine,
};
int ret;
diff --git a/tools/perf/util/unwind.h b/tools/perf/util/unwind.h
index f50b737..12790cf 100644
--- a/tools/perf/util/unwind.h
+++ b/tools/perf/util/unwind.h
@@ -16,7 +16,6 @@ typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry, void *arg);
#ifdef HAVE_DWARF_UNWIND_SUPPORT
int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
- struct machine *machine,
struct thread *thread,
struct perf_sample *data, int max_stack);
/* libunwind specific */
@@ -38,7 +37,6 @@ static inline void unwind__finish_access(struct thread *thread __maybe_unused) {
static inline int
unwind__get_entries(unwind_entry_cb_t cb __maybe_unused,
void *arg __maybe_unused,
- struct machine *machine __maybe_unused,
struct thread *thread __maybe_unused,
struct perf_sample *data __maybe_unused,
int max_stack __maybe_unused)
--
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