perf hists browser: Elide DSO column when it is set to just one DSO, ditto for threads

And also no leed to show the [.] (level: k, . for userspace) when
showing just one DSO.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-4h3f6ro5o7ebepjbssxf0dd3@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 1ee8f1e..16da30d 100644 (file)
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -177,7 +177,9 @@ static int hist_entry__sym_snprintf(struct hist_entry *self, char *bf,
                                       BITS_PER_LONG / 4, self->ip, o);
        }
 
-       ret += repsep_snprintf(bf + ret, size - ret, "[%c] ", self->level);
+       if (!sort_dso.elide)
+               ret += repsep_snprintf(bf + ret, size - ret, "[%c] ", self->level);
+
        if (self->ms.sym)
                ret += repsep_snprintf(bf + ret, size - ret, "%s",
                                       self->ms.sym->name);

diff --git a/tools/perf/util/ui/browsers/hists.c b/tools/perf/util/ui/browsers/hists.c
index 9e23bce..a06e7d9 100644 (file)
--- a/tools/perf/util/ui/browsers/hists.c
+++ b/tools/perf/util/ui/browsers/hists.c
@@ -1007,12 +1007,14 @@ zoom_dso:
 zoom_out_dso:
                                ui_helpline__pop();
                                browser->hists->dso_filter = NULL;
+                               sort_dso.elide = false;
                        } else {
                                if (dso == NULL)
                                        continue;
                                ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s DSO\"",
                                                   dso->kernel ? "the Kernel" : dso->short_name);
                                browser->hists->dso_filter = dso;
+                               sort_dso.elide = true;
                                pstack__push(fstack, &browser->hists->dso_filter);
                        }
                        hists__filter_by_dso(self);
@@ -1024,11 +1026,13 @@ zoom_thread:
 zoom_out_thread:
                                ui_helpline__pop();
                                browser->hists->thread_filter = NULL;
+                               sort_thread.elide = false;
                        } else {
                                ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s(%d) thread\"",
                                                   thread->comm_set ? thread->comm : "",
                                                   thread->pid);
                                browser->hists->thread_filter = thread;
+                               sort_thread.elide = true;
                                pstack__push(fstack, &browser->hists->thread_filter);
                        }
                        hists__filter_by_thread(self);