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-rw-r--r--tools/perf/builtin-report.c32
1 files changed, 30 insertions, 2 deletions
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index ed1fdab..cdd46ab 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -37,6 +37,7 @@ static char *dso_list_str, *comm_list_str, *sym_list_str,
static struct strlist *dso_list, *comm_list, *sym_list;
static char *field_sep;
+static int force;
static int input;
static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV;
@@ -665,6 +666,27 @@ static void dso__calc_col_width(struct dso *self)
self->slen_calculated = 1;
}
+static int thread__set_comm_adjust(struct thread *self, const char *comm)
+{
+ int ret = thread__set_comm(self, comm);
+
+ if (ret)
+ return ret;
+
+ if (!col_width_list_str && !field_sep &&
+ (!comm_list || strlist__has_entry(comm_list, comm))) {
+ unsigned int slen = strlen(comm);
+
+ if (slen > comms__col_width) {
+ comms__col_width = slen;
+ threads__col_width = slen + 6;
+ }
+ }
+
+ return 0;
+}
+
+
static struct symbol *
resolve_symbol(struct thread *thread, struct map **mapp,
struct dso **dsop, u64 *ipp)
@@ -1056,7 +1078,7 @@ static void register_idle_thread(void)
struct thread *thread = threads__findnew(0, &threads, &last_match);
if (thread == NULL ||
- thread__set_comm(thread, "[idle]")) {
+ thread__set_comm_adjust(thread, "[idle]")) {
fprintf(stderr, "problem inserting idle task.\n");
exit(-1);
}
@@ -1226,7 +1248,7 @@ process_comm_event(event_t *event, unsigned long offset, unsigned long head)
event->comm.comm, event->comm.pid);
if (thread == NULL ||
- thread__set_comm(thread, event->comm.comm)) {
+ thread__set_comm_adjust(thread, event->comm.comm)) {
dump_printf("problem processing PERF_EVENT_COMM, skipping event.\n");
return -1;
}
@@ -1383,6 +1405,11 @@ static int __cmd_report(void)
exit(-1);
}
+ if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) {
+ fprintf(stderr, "file: %s not owned by current user or root\n", input_name);
+ exit(-1);
+ }
+
if (!input_stat.st_size) {
fprintf(stderr, "zero-sized file, nothing to do!\n");
exit(0);
@@ -1594,6 +1621,7 @@ static const struct option options[] = {
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
OPT_STRING('k', "vmlinux", &vmlinux_name, "file", "vmlinux pathname"),
+ OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
OPT_BOOLEAN('m', "modules", &modules,
"load module symbols - WARNING: use only with -k and LIVE kernel"),
OPT_BOOLEAN('n', "show-nr-samples", &show_nr_samples,
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