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161149513b
If somebody happens to name an event with the beginning of 'tracepoint' (e.g. tracepoint_foo), then it will never be showed with perf list event_glob, thus we parse the argument 'tracepoint' more carefully for accuracy. Example: Before this patch: $ perf list tracepoint_foo:* jbd2:jbd2_start_commit [Tracepoint event] jbd2:jbd2_commit_locking [Tracepoint event] jbd2:jbd2_run_stats [Tracepoint event] block:block_rq_issue [Tracepoint event] block:block_bio_complete [Tracepoint event] block:block_bio_backmerge [Tracepoint event] block:block_getrq [Tracepoint event] ... ... As shown above, all of the tracepoint events are printed. In fact, the command's real intention is to print the events of tracepoint_foo. After this patch: $ perf list tracepoint_foo:* tracepoint_foo:tp_foo_enter [Tracepoint event] tracepoint_foo:tp_foo_exit [Tracepoint event] As shown above, only the events of tracepoint_foo are printed. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1425032491-20224-3-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
86 lines
2.0 KiB
C
86 lines
2.0 KiB
C
/*
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* builtin-list.c
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*
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* Builtin list command: list all event types
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*
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* Copyright (C) 2009, Thomas Gleixner <tglx@linutronix.de>
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* Copyright (C) 2008-2009, Red Hat Inc, Ingo Molnar <mingo@redhat.com>
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* Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
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*/
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#include "builtin.h"
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#include "perf.h"
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#include "util/parse-events.h"
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#include "util/cache.h"
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#include "util/pmu.h"
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#include "util/parse-options.h"
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int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
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{
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int i;
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bool raw_dump = false;
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struct option list_options[] = {
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OPT_BOOLEAN(0, "raw-dump", &raw_dump, "Dump raw events"),
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OPT_END()
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};
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const char * const list_usage[] = {
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"perf list [hw|sw|cache|tracepoint|pmu|event_glob]",
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NULL
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};
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set_option_flag(list_options, 0, "raw-dump", PARSE_OPT_HIDDEN);
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argc = parse_options(argc, argv, list_options, list_usage,
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PARSE_OPT_STOP_AT_NON_OPTION);
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setup_pager();
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if (raw_dump) {
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print_events(NULL, true);
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return 0;
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}
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if (!raw_dump)
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printf("\nList of pre-defined events (to be used in -e):\n\n");
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if (argc == 0) {
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print_events(NULL, false);
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return 0;
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}
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for (i = 0; i < argc; ++i) {
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if (strcmp(argv[i], "tracepoint") == 0)
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print_tracepoint_events(NULL, NULL, false);
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else if (strcmp(argv[i], "hw") == 0 ||
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strcmp(argv[i], "hardware") == 0)
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print_events_type(PERF_TYPE_HARDWARE);
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else if (strcmp(argv[i], "sw") == 0 ||
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strcmp(argv[i], "software") == 0)
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print_events_type(PERF_TYPE_SOFTWARE);
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else if (strcmp(argv[i], "cache") == 0 ||
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strcmp(argv[i], "hwcache") == 0)
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print_hwcache_events(NULL, false);
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else if (strcmp(argv[i], "pmu") == 0)
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print_pmu_events(NULL, false);
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else {
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char *sep = strchr(argv[i], ':'), *s;
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int sep_idx;
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if (sep == NULL) {
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print_events(argv[i], false);
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continue;
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}
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sep_idx = sep - argv[i];
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s = strdup(argv[i]);
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if (s == NULL)
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return -1;
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s[sep_idx] = '\0';
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print_tracepoint_events(s, s + sep_idx + 1, false);
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free(s);
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}
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}
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return 0;
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}
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