perf tools: Add a global variable "const char *input_name"

Currently many perf commands annotate/evlist/report/script/lock etc all
support "-i" option to chose a specific perf data, and all of them
create a local "input_name" to save the file name for that perf data.

Since most of these commands need it, we can add a global variable for
it, also it can some other benefits:

1. When calling script browser inside hists/annotation browser, it needs
to know the perf data file name to run that script.

2. For further feature like runtime switching to another perf data file,
this variable can also help.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1351569369-26732-2-git-send-email-feng.tang@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index c4bb6457b19e..cb234765ce3d 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -34,7 +34,6 @@
 
 struct perf_annotate {
         struct perf_tool tool;
-        char const *input_name;
         bool       force, use_tui, use_stdio;
         bool       full_paths;
         bool       print_line;
@@ -175,7 +174,7 @@ static int __cmd_annotate(struct perf_annotate *ann)
         struct perf_evsel *pos;
         u64 total_nr_samples;
 
-        session = perf_session__new(ann->input_name, O_RDONLY,
+        session = perf_session__new(input_name, O_RDONLY,
                                     ann->force, false, &ann->tool);
         if (session == NULL)
                 return -ENOMEM;
@@ -260,7 +259,7 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused)
                 },
         };
         const struct option options[] = {
-        OPT_STRING('i', "input", &annotate.input_name, "file",
+        OPT_STRING('i', "input", &input_name, "file",
                     "input file name"),
         OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
                    "only consider symbols in these dsos"),