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@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-uk9ekchd67651c625ltaur5y@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

3 files changed, 8 insertions, 4 deletions

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index dbf208f0cdc2..60fde9f5025c 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 bbac0efbc10c..62b6d4051b99 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 0ee3d9dbc099..a6bc4ddbae3e 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);