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>
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index c4bb645..cb23476 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 @@
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 @@
},
};
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"),
diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index a0e94ff..a82d99f 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -44,8 +44,7 @@
return fprintf(fp, "%s\n", sbuild_id);
}
-static int perf_session__list_build_ids(const char *input_name,
- bool force, bool with_hits)
+static int perf_session__list_build_ids(bool force, bool with_hits)
{
struct perf_session *session;
@@ -81,7 +80,6 @@
bool show_kernel = false;
bool with_hits = false;
bool force = false;
- const char *input_name = NULL;
const struct option options[] = {
OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"),
OPT_STRING('i', "input", &input_name, "file", "input file name"),
@@ -101,5 +99,5 @@
if (show_kernel)
return sysfs__fprintf_build_id(stdout);
- return perf_session__list_build_ids(input_name, force, with_hits);
+ return perf_session__list_build_ids(force, with_hits);
}
diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c
index 997afb8..c20f1dc 100644
--- a/tools/perf/builtin-evlist.c
+++ b/tools/perf/builtin-evlist.c
@@ -48,12 +48,12 @@
#define if_print(field) __if_print(&first, #field, pos->attr.field)
-static int __cmd_evlist(const char *input_name, struct perf_attr_details *details)
+static int __cmd_evlist(const char *file_name, struct perf_attr_details *details)
{
struct perf_session *session;
struct perf_evsel *pos;
- session = perf_session__new(input_name, O_RDONLY, 0, false, NULL);
+ session = perf_session__new(file_name, O_RDONLY, 0, false, NULL);
if (session == NULL)
return -ENOMEM;
@@ -111,7 +111,6 @@
int cmd_evlist(int argc, const char **argv, const char *prefix __maybe_unused)
{
struct perf_attr_details details = { .verbose = false, };
- const char *input_name = NULL;
const struct option options[] = {
OPT_STRING('i', "input", &input_name, "file", "Input file name"),
OPT_BOOLEAN('F', "freq", &details.freq, "Show the sample frequency"),
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 14bf82f..0b4b796 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -477,7 +477,7 @@
__sort_result(&root_caller_stat, &root_caller_sorted, &caller_sort);
}
-static int __cmd_kmem(const char *input_name)
+static int __cmd_kmem(void)
{
int err = -EINVAL;
struct perf_session *session;
@@ -743,7 +743,6 @@
int cmd_kmem(int argc, const char **argv, const char *prefix __maybe_unused)
{
const char * const default_sort_order = "frag,hit,bytes";
- const char *input_name = NULL;
const struct option kmem_options[] = {
OPT_STRING('i', "input", &input_name, "file", "input file name"),
OPT_CALLBACK_NOOPT(0, "caller", NULL, NULL,
@@ -779,7 +778,7 @@
if (list_empty(&alloc_sort))
setup_sorting(&alloc_sort, default_sort_order);
- return __cmd_kmem(input_name);
+ return __cmd_kmem();
} else
usage_with_options(kmem_usage, kmem_options);
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 6f5f328..4258300 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -335,8 +335,6 @@
return NULL;
}
-static const char *input_name;
-
struct trace_lock_handler {
int (*acquire_event)(struct perf_evsel *evsel,
struct perf_sample *sample);
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 90d1162..f07eae7 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -40,7 +40,6 @@
struct perf_report {
struct perf_tool tool;
struct perf_session *session;
- char const *input_name;
bool force, use_tui, use_gtk, use_stdio;
bool hide_unresolved;
bool dont_use_callchains;
@@ -571,7 +570,7 @@
.pretty_printing_style = "normal",
};
const struct option options[] = {
- OPT_STRING('i', "input", &report.input_name, "file",
+ OPT_STRING('i', "input", &input_name, "file",
"input file name"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show symbol address, etc)"),
@@ -657,13 +656,13 @@
if (report.inverted_callchain)
callchain_param.order = ORDER_CALLER;
- if (!report.input_name || !strlen(report.input_name)) {
+ if (!input_name || !strlen(input_name)) {
if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
- report.input_name = "-";
+ input_name = "-";
else
- report.input_name = "perf.data";
+ input_name = "perf.data";
}
- session = perf_session__new(report.input_name, O_RDONLY,
+ session = perf_session__new(input_name, O_RDONLY,
report.force, false, &report.tool);
if (session == NULL)
return -ENOMEM;
@@ -694,7 +693,7 @@
}
- if (strcmp(report.input_name, "-") != 0)
+ if (strcmp(input_name, "-") != 0)
setup_browser(true);
else {
use_browser = 0;
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 30e5336..cc28b85 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -120,7 +120,6 @@
struct perf_sched {
struct perf_tool tool;
- const char *input_name;
const char *sort_order;
unsigned long nr_tasks;
struct task_desc *pid_to_task[MAX_PID];
@@ -1460,7 +1459,7 @@
};
struct perf_session *session;
- session = perf_session__new(sched->input_name, O_RDONLY, 0, false, &sched->tool);
+ session = perf_session__new(input_name, O_RDONLY, 0, false, &sched->tool);
if (session == NULL) {
pr_debug("No Memory for session\n");
return -1;
@@ -1708,7 +1707,7 @@
OPT_END()
};
const struct option sched_options[] = {
- OPT_STRING('i', "input", &sched.input_name, "file",
+ OPT_STRING('i', "input", &input_name, "file",
"input file name"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show symbol address, etc)"),
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 04ceb07..7c6e4b2 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -1175,7 +1175,6 @@
int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
{
bool show_full_info = false;
- const char *input_name = NULL;
char *rec_script_path = NULL;
char *rep_script_path = NULL;
struct perf_session *session;
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index f251b61..ab4cf232 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -965,7 +965,7 @@
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 @@
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 @@
setup_pager();
- return __cmd_timechart(input_name, output_name);
+ return __cmd_timechart(output_name);
}
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index d480d8a..e968373 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -24,6 +24,7 @@
int use_browser = -1;
static int use_pager = -1;
+const char *input_name;
struct cmd_struct {
const char *cmd;
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index c50985e..469fbf2 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -208,6 +208,7 @@
struct branch_entry entries[0];
};
+extern const char *input_name;
extern bool perf_host, perf_guest;
extern const char perf_version_string[];