70cb4e963f
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>
132 lines
2.8 KiB
C
132 lines
2.8 KiB
C
/*
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* Builtin evlist command: Show the list of event selectors present
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* in a perf.data file.
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*/
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#include "builtin.h"
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#include "util/util.h"
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#include <linux/list.h>
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#include "perf.h"
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#include "util/evlist.h"
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#include "util/evsel.h"
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#include "util/parse-events.h"
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#include "util/parse-options.h"
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#include "util/session.h"
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struct perf_attr_details {
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bool freq;
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bool verbose;
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};
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static int comma_printf(bool *first, const char *fmt, ...)
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{
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va_list args;
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int ret = 0;
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if (!*first) {
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ret += printf(",");
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} else {
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ret += printf(":");
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*first = false;
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}
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va_start(args, fmt);
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ret += vprintf(fmt, args);
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va_end(args);
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return ret;
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}
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static int __if_print(bool *first, const char *field, u64 value)
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{
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if (value == 0)
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return 0;
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return comma_printf(first, " %s: %" PRIu64, field, value);
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}
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#define if_print(field) __if_print(&first, #field, pos->attr.field)
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static int __cmd_evlist(const char *file_name, struct perf_attr_details *details)
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{
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struct perf_session *session;
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struct perf_evsel *pos;
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session = perf_session__new(file_name, O_RDONLY, 0, false, NULL);
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if (session == NULL)
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return -ENOMEM;
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list_for_each_entry(pos, &session->evlist->entries, node) {
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bool first = true;
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printf("%s", perf_evsel__name(pos));
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if (details->verbose || details->freq) {
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comma_printf(&first, " sample_freq=%" PRIu64,
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(u64)pos->attr.sample_freq);
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}
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if (details->verbose) {
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if_print(type);
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if_print(config);
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if_print(config1);
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if_print(config2);
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if_print(size);
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if_print(sample_type);
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if_print(read_format);
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if_print(disabled);
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if_print(inherit);
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if_print(pinned);
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if_print(exclusive);
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if_print(exclude_user);
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if_print(exclude_kernel);
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if_print(exclude_hv);
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if_print(exclude_idle);
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if_print(mmap);
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if_print(comm);
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if_print(freq);
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if_print(inherit_stat);
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if_print(enable_on_exec);
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if_print(task);
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if_print(watermark);
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if_print(precise_ip);
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if_print(mmap_data);
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if_print(sample_id_all);
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if_print(exclude_host);
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if_print(exclude_guest);
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if_print(__reserved_1);
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if_print(wakeup_events);
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if_print(bp_type);
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if_print(branch_sample_type);
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}
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putchar('\n');
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}
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perf_session__delete(session);
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return 0;
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}
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int cmd_evlist(int argc, const char **argv, const char *prefix __maybe_unused)
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{
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struct perf_attr_details details = { .verbose = false, };
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const struct option options[] = {
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OPT_STRING('i', "input", &input_name, "file", "Input file name"),
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OPT_BOOLEAN('F', "freq", &details.freq, "Show the sample frequency"),
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OPT_BOOLEAN('v', "verbose", &details.verbose,
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"Show all event attr details"),
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OPT_END()
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};
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const char * const evlist_usage[] = {
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"perf evlist [<options>]",
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NULL
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};
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argc = parse_options(argc, argv, options, evlist_usage, 0);
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if (argc)
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usage_with_options(evlist_usage, options);
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return __cmd_evlist(input_name, &details);
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}
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