perf tools: Convert critical messages to ui__error()

There were places where use ui__warning (or even fprintf) to show
critical messages. This patch converts them to ui__error so that the
front-end code can implement appropriate behavior.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1338265382-6872-3-git-send-email-namhyung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

4 files changed, 25 insertions, 27 deletions

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 806e0a286634..67522cf87405 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -215,7 +215,7 @@ static int __cmd_annotate(struct perf_annotate *ann)
         }
 
         if (total_nr_samples == 0) {
-                ui__warning("The %s file has no samples!\n", session->filename);
+                ui__error("The %s file has no samples!\n", session->filename);
                 goto out_delete;
         }
 out_delete:
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index e5cb08427e13..f95840d04e4c 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -264,7 +264,7 @@ try_again:
                         }
 
                         if (err == ENOENT) {
-                                ui__warning("The %s event is not supported.\n",
+                                ui__error("The %s event is not supported.\n",
                                             event_name(pos));
                                 exit(EXIT_FAILURE);
                         }
@@ -858,8 +858,8 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
                 usage_with_options(record_usage, record_options);
 
         if (rec->force && rec->append_file) {
-                fprintf(stderr, "Can't overwrite and append at the same time."
-                                " You need to choose between -f and -A");
+                ui__error("Can't overwrite and append at the same time."
+                          " You need to choose between -f and -A");
                 usage_with_options(record_usage, record_options);
         } else if (rec->append_file) {
                 rec->write_mode = WRITE_APPEND;
@@ -868,8 +868,8 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
         }
 
         if (nr_cgroups && !rec->opts.target.system_wide) {
-                fprintf(stderr, "cgroup monitoring only available in"
-                        " system-wide mode\n");
+                ui__error("cgroup monitoring only available in"
+                          " system-wide mode\n");
                 usage_with_options(record_usage, record_options);
         }
 
@@ -905,7 +905,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
                 int saved_errno = errno;
 
                 perf_target__strerror(&rec->opts.target, err, errbuf, BUFSIZ);
-                ui__warning("%s", errbuf);
+                ui__error("%s", errbuf);
 
                 err = -saved_errno;
                 goto out_free_fd;
@@ -933,7 +933,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
         else if (rec->opts.freq) {
                 rec->opts.default_interval = rec->opts.freq;
         } else {
-                fprintf(stderr, "frequency and count are zero, aborting\n");
+                ui__error("frequency and count are zero, aborting\n");
                 err = -EINVAL;
                 goto out_free_fd;
         }
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index d58e41445d0d..8c767c6bca91 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -251,13 +251,13 @@ static int perf_report__setup_sample_type(struct perf_report *rep)
 
         if (!(self->sample_type & PERF_SAMPLE_CALLCHAIN)) {
                 if (sort__has_parent) {
-                        ui__warning("Selected --sort parent, but no "
+                        ui__error("Selected --sort parent, but no "
                                     "callchain data. Did you call "
                                     "'perf record' without -g?\n");
                         return -EINVAL;
                 }
                 if (symbol_conf.use_callchain) {
-                        ui__warning("Selected -g but no callchain data. Did "
+                        ui__error("Selected -g but no callchain data. Did "
                                     "you call 'perf record' without -g?\n");
                         return -1;
                 }
@@ -266,17 +266,15 @@ static int perf_report__setup_sample_type(struct perf_report *rep)
                    !symbol_conf.use_callchain) {
                         symbol_conf.use_callchain = true;
                         if (callchain_register_param(&callchain_param) < 0) {
-                                ui__warning("Can't register callchain "
-                                            "params.\n");
+                                ui__error("Can't register callchain params.\n");
                                 return -EINVAL;
                         }
         }
 
         if (sort__branch_mode == 1) {
                 if (!(self->sample_type & PERF_SAMPLE_BRANCH_STACK)) {
-                        fprintf(stderr, "selected -b but no branch data."
-                                        " Did you call perf record without"
-                                        " -b?\n");
+                        ui__error("Selected -b but no branch data. "
+                                  "Did you call perf record without -b?\n");
                         return -1;
                 }
         }
@@ -420,7 +418,7 @@ static int __cmd_report(struct perf_report *rep)
         }
 
         if (nr_samples == 0) {
-                ui__warning("The %s file has no samples!\n", session->filename);
+                ui__error("The %s file has no samples!\n", session->filename);
                 goto out_delete;
         }
 
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index d4a5f9b7f4f9..871b540293e1 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -959,16 +959,16 @@ try_again:
                         }
 
                         if (err == ENOENT) {
-                                ui__warning("The %s event is not supported.\n",
+                                ui__error("The %s event is not supported.\n",
                                             event_name(counter));
                                 goto out_err;
                         } else if (err == EMFILE) {
-                                ui__warning("Too many events are opened.\n"
+                                ui__error("Too many events are opened.\n"
                                             "Try again after reducing the number of events\n");
                                 goto out_err;
                         }
 
-                        ui__warning("The sys_perf_event_open() syscall "
+                        ui__error("The sys_perf_event_open() syscall "
                                     "returned with %d (%s).  /bin/dmesg "
                                     "may provide additional information.\n"
                                     "No CONFIG_PERF_EVENTS=y kernel support "
@@ -978,7 +978,7 @@ try_again:
         }
 
         if (perf_evlist__mmap(evlist, top->mmap_pages, false) < 0) {
-                ui__warning("Failed to mmap with %d (%s)\n",
+                ui__error("Failed to mmap with %d (%s)\n",
                             errno, strerror(errno));
                 goto out_err;
         }
@@ -994,12 +994,12 @@ static int perf_top__setup_sample_type(struct perf_top *top)
 {
         if (!top->sort_has_symbols) {
                 if (symbol_conf.use_callchain) {
-                        ui__warning("Selected -g but \"sym\" not present in --sort/-s.");
+                        ui__error("Selected -g but \"sym\" not present in --sort/-s.");
                         return -EINVAL;
                 }
         } else if (!top->dont_use_callchains && callchain_param.mode != CHAIN_NONE) {
                 if (callchain_register_param(&callchain_param) < 0) {
-                        ui__warning("Can't register callchain params.\n");
+                        ui__error("Can't register callchain params.\n");
                         return -EINVAL;
                 }
         }
@@ -1041,7 +1041,7 @@ static int __cmd_top(struct perf_top *top)
 
         if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui :
                                                             display_thread), top)) {
-                printf("Could not create display thread.\n");
+                ui__error("Could not create display thread.\n");
                 exit(-1);
         }
 
@@ -1050,7 +1050,7 @@ static int __cmd_top(struct perf_top *top)
 
                 param.sched_priority = top->realtime_prio;
                 if (sched_setscheduler(0, SCHED_FIFO, &param)) {
-                        printf("Could not set realtime priority.\n");
+                        ui__error("Could not set realtime priority.\n");
                         exit(-1);
                 }
         }
@@ -1274,7 +1274,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __used)
                 int saved_errno = errno;
 
                 perf_target__strerror(&top.target, status, errbuf, BUFSIZ);
-                ui__warning("%s", errbuf);
+                ui__error("%s", errbuf);
 
                 status = -saved_errno;
                 goto out_delete_evlist;
@@ -1288,7 +1288,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __used)
 
         if (!top.evlist->nr_entries &&
             perf_evlist__add_default(top.evlist) < 0) {
-                pr_err("Not enough memory for event selector list\n");
+                ui__error("Not enough memory for event selector list\n");
                 return -ENOMEM;
         }
 
@@ -1305,7 +1305,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __used)
         else if (top.freq) {
                 top.default_interval = top.freq;
         } else {
-                fprintf(stderr, "frequency and count are zero, aborting\n");
+                ui__error("frequency and count are zero, aborting\n");
                 exit(EXIT_FAILURE);
         }