[tip:perf/core] perf evsel: Allow passing a left alignment when printing a symbol

From: tip-bot for Arnaldo Carvalho de Melo
Date: Wed Apr 13 2016 - 03:23:57 EST


Commit-ID: db3617f362d7e205621c1ccc22b77d224a81ee14
Gitweb: http://git.kernel.org/tip/db3617f362d7e205621c1ccc22b77d224a81ee14
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Mon, 11 Apr 2016 10:53:51 -0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Mon, 11 Apr 2016 22:18:15 -0300

perf evsel: Allow passing a left alignment when printing a symbol

For callchains, etc where we want it to align just below the syscall
name, for instance, in 'perf trace'

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-uk9ekchd67651c625ltaur5y@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/builtin-script.c | 4 ++--
tools/perf/util/session.c | 6 +++++-
tools/perf/util/session.h | 2 +-
3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index dbf208f..60fde9f 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -579,7 +579,7 @@ static void print_sample_bts(struct perf_sample *sample,
print_opts &= ~PRINT_IP_OPT_SRCLINE;
}
}
- perf_evsel__print_ip(evsel, sample, al, print_opts,
+ perf_evsel__print_ip(evsel, sample, al, 0, print_opts,
scripting_max_stack, stdout);
}

@@ -788,7 +788,7 @@ static void process_event(struct perf_script *script,
else
printf("\n");

- perf_evsel__print_ip(evsel, sample, al,
+ perf_evsel__print_ip(evsel, sample, al, 0,
output[attr->type].print_ip_opts,
scripting_max_stack, stdout);
}
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index bbac0ef..62b6d40 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1954,7 +1954,7 @@ struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
}

void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
- struct addr_location *al,
+ struct addr_location *al, int left_alignment,
unsigned int print_opts, unsigned int stack_depth,
FILE *fp)
{
@@ -1992,6 +1992,8 @@ void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
if (node->sym && node->sym->ignore)
goto next;

+ fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
+
if (print_ip)
fprintf(fp, "%c%16" PRIx64, s, node->ip);

@@ -2032,6 +2034,8 @@ next:
if (al->sym && al->sym->ignore)
return;

+ fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
+
if (print_ip)
fprintf(fp, "%16" PRIx64, sample->ip);

diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 0ee3d9d..a6bc4dd 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -105,7 +105,7 @@ struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
unsigned int type);

void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample,
- struct addr_location *al,
+ struct addr_location *al, int left_alignment,
unsigned int print_opts, unsigned int stack_depth,
FILE *fp);