diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/Documentation/perf-trace.txt | 2 | ||||
| -rw-r--r-- | tools/perf/builtin-trace.c | 39 |
2 files changed, 36 insertions, 5 deletions
diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt index c1e3288a2dfb..d53bea6bd571 100644 --- a/tools/perf/Documentation/perf-trace.txt +++ b/tools/perf/Documentation/perf-trace.txt @@ -37,7 +37,7 @@ OPTIONS --expr:: --event:: List of syscalls and other perf events (tracepoints, HW cache events, - etc) to show. + etc) to show. Globbing is supported, e.g.: "epoll_*", "*msg*", etc. See 'perf list' for a complete list of events. Prefixing with ! shows all syscalls but the ones specified. You may need to escape it. diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index d59cdadf3a79..771ddab94bb0 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -1261,6 +1261,7 @@ static int trace__read_syscall_info(struct trace *trace, int id) static int trace__validate_ev_qualifier(struct trace *trace) { int err = 0, i; + size_t nr_allocated; struct str_node *pos; trace->ev_qualifier_ids.nr = strlist__nr_entries(trace->ev_qualifier); @@ -1274,13 +1275,18 @@ static int trace__validate_ev_qualifier(struct trace *trace) goto out; } + nr_allocated = trace->ev_qualifier_ids.nr; i = 0; strlist__for_each_entry(pos, trace->ev_qualifier) { const char *sc = pos->s; - int id = syscalltbl__id(trace->sctbl, sc); + int id = syscalltbl__id(trace->sctbl, sc), match_next = -1; if (id < 0) { + id = syscalltbl__strglobmatch_first(trace->sctbl, sc, &match_next); + if (id >= 0) + goto matches; + if (err == 0) { fputs("Error:\tInvalid syscall ", trace->output); err = -EINVAL; @@ -1290,13 +1296,37 @@ static int trace__validate_ev_qualifier(struct trace *trace) fputs(sc, trace->output); } - +matches: trace->ev_qualifier_ids.entries[i++] = id; + if (match_next == -1) + continue; + + while (1) { + id = syscalltbl__strglobmatch_next(trace->sctbl, sc, &match_next); + if (id < 0) + break; + if (nr_allocated == trace->ev_qualifier_ids.nr) { + void *entries; + + nr_allocated += 8; + entries = realloc(trace->ev_qualifier_ids.entries, + nr_allocated * sizeof(trace->ev_qualifier_ids.entries[0])); + if (entries == NULL) { + err = -ENOMEM; + fputs("\nError:\t Not enough memory for parsing\n", trace->output); + goto out_free; + } + trace->ev_qualifier_ids.entries = entries; + } + trace->ev_qualifier_ids.nr++; + trace->ev_qualifier_ids.entries[i++] = id; + } } if (err < 0) { fputs("\nHint:\ttry 'perf list syscalls:sys_enter_*'" "\nHint:\tand: 'man syscalls'\n", trace->output); +out_free: zfree(&trace->ev_qualifier_ids.entries); trace->ev_qualifier_ids.nr = 0; } @@ -2814,7 +2844,7 @@ static int trace__parse_events_option(const struct option *opt, const char *str, struct trace *trace = (struct trace *)opt->value; const char *s = str; char *sep = NULL, *lists[2] = { NULL, NULL, }; - int len = strlen(str) + 1, err = -1, list; + int len = strlen(str) + 1, err = -1, list, idx; char *strace_groups_dir = system_path(STRACE_GROUPS_DIR); char group_name[PATH_MAX]; @@ -2831,7 +2861,8 @@ static int trace__parse_events_option(const struct option *opt, const char *str, *sep = '\0'; list = 0; - if (syscalltbl__id(trace->sctbl, s) >= 0) { + if (syscalltbl__id(trace->sctbl, s) >= 0 || + syscalltbl__strglobmatch_first(trace->sctbl, s, &idx) >= 0) { list = 1; } else { path__join(group_name, sizeof(group_name), strace_groups_dir, s); |