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

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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>
This commit is contained in:
Feng Tang 2012-10-30 11:56:02 +08:00 • committed by Arnaldo Carvalho de Melo
parent cdd059d731
commit 70cb4e963f
11 changed files with 20 additions and 29 deletions
Download patch file Download diff file Expand all files Collapse all files

5
tools/perf/builtin-timechart.c
View file

@ -965,7 +965,7 @@ static void write_svg_file(const char *filename)
svg_close();
}
static int __cmd_timechart(const char *input_name, const char *output_name)
static int __cmd_timechart(const char *output_name)
{
struct perf_tool perf_timechart = {
.comm = process_comm_event,
@ -1061,7 +1061,6 @@ parse_process(const struct option *opt __maybe_unused, const char *arg,
int cmd_timechart(int argc, const char **argv,
const char *prefix __maybe_unused)
{
const char *input_name;
const char *output_name = "output.svg";
const struct option options[] = {
OPT_STRING('i', "input", &input_name, "file", "input file name"),
@ -1092,5 +1091,5 @@ int cmd_timechart(int argc, const char **argv,
setup_pager();
return __cmd_timechart(input_name, output_name);
return __cmd_timechart(output_name);
}