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-rw-r--r--tools/perf/builtin-top.c106
1 files changed, 13 insertions, 93 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index b7d2ea6..7978c81 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -68,28 +68,6 @@
#include <linux/unistd.h>
#include <linux/types.h>
-void get_term_dimensions(struct winsize *ws)
-{
- char *s = getenv("LINES");
-
- if (s != NULL) {
- ws->ws_row = atoi(s);
- s = getenv("COLUMNS");
- if (s != NULL) {
- ws->ws_col = atoi(s);
- if (ws->ws_row && ws->ws_col)
- return;
- }
- }
-#ifdef TIOCGWINSZ
- if (ioctl(1, TIOCGWINSZ, ws) == 0 &&
- ws->ws_row && ws->ws_col)
- return;
-#endif
- ws->ws_row = 25;
- ws->ws_col = 80;
-}
-
static void perf_top__update_print_entries(struct perf_top *top)
{
if (top->print_entries > 9)
@@ -716,7 +694,7 @@ static void perf_event__process_sample(struct perf_tool *tool,
static struct intlist *seen;
if (!seen)
- seen = intlist__new();
+ seen = intlist__new(NULL);
if (!intlist__has_entry(seen, event->ip.pid)) {
pr_err("Can't find guest [%d]'s kernel information\n",
@@ -728,7 +706,7 @@ static void perf_event__process_sample(struct perf_tool *tool,
if (!machine) {
pr_err("%u unprocessable samples recorded.\n",
- top->session->hists.stats.nr_unprocessable_samples++);
+ top->session->stats.nr_unprocessable_samples++);
return;
}
@@ -847,13 +825,13 @@ static void perf_top__mmap_read_idx(struct perf_top *top, int idx)
++top->us_samples;
if (top->hide_user_symbols)
continue;
- machine = perf_session__find_host_machine(session);
+ machine = &session->machines.host;
break;
case PERF_RECORD_MISC_KERNEL:
++top->kernel_samples;
if (top->hide_kernel_symbols)
continue;
- machine = perf_session__find_host_machine(session);
+ machine = &session->machines.host;
break;
case PERF_RECORD_MISC_GUEST_KERNEL:
++top->guest_kernel_samples;
@@ -878,7 +856,7 @@ static void perf_top__mmap_read_idx(struct perf_top *top, int idx)
hists__inc_nr_events(&evsel->hists, event->header.type);
machine__process_event(machine, event);
} else
- ++session->hists.stats.nr_unknown_events;
+ ++session->stats.nr_unknown_events;
}
}
@@ -892,6 +870,7 @@ static void perf_top__mmap_read(struct perf_top *top)
static void perf_top__start_counters(struct perf_top *top)
{
+ char msg[512];
struct perf_evsel *counter;
struct perf_evlist *evlist = top->evlist;
struct perf_record_opts *opts = &top->record_opts;
@@ -899,77 +878,18 @@ static void perf_top__start_counters(struct perf_top *top)
perf_evlist__config(evlist, opts);
list_for_each_entry(counter, &evlist->entries, node) {
- struct perf_event_attr *attr = &counter->attr;
-
-fallback_missing_features:
- if (top->exclude_guest_missing)
- attr->exclude_guest = attr->exclude_host = 0;
-retry_sample_id:
- attr->sample_id_all = top->sample_id_all_missing ? 0 : 1;
try_again:
if (perf_evsel__open(counter, top->evlist->cpus,
top->evlist->threads) < 0) {
- int err = errno;
-
- if (err == EPERM || err == EACCES) {
- ui__error_paranoid();
- goto out_err;
- } else if (err == EINVAL) {
- if (!top->exclude_guest_missing &&
- (attr->exclude_guest || attr->exclude_host)) {
- pr_debug("Old kernel, cannot exclude "
- "guest or host samples.\n");
- top->exclude_guest_missing = true;
- goto fallback_missing_features;
- } else if (!top->sample_id_all_missing) {
- /*
- * Old kernel, no attr->sample_id_type_all field
- */
- top->sample_id_all_missing = true;
- goto retry_sample_id;
- }
- }
- /*
- * If it's cycles then fall back to hrtimer
- * based cpu-clock-tick sw counter, which
- * is always available even if no PMU support:
- */
- if ((err == ENOENT || err == ENXIO) &&
- (attr->type == PERF_TYPE_HARDWARE) &&
- (attr->config == PERF_COUNT_HW_CPU_CYCLES)) {
-
+ if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) {
if (verbose)
- ui__warning("Cycles event not supported,\n"
- "trying to fall back to cpu-clock-ticks\n");
-
- attr->type = PERF_TYPE_SOFTWARE;
- attr->config = PERF_COUNT_SW_CPU_CLOCK;
- if (counter->name) {
- free(counter->name);
- counter->name = NULL;
- }
+ ui__warning("%s\n", msg);
goto try_again;
}
- if (err == ENOENT) {
- ui__error("The %s event is not supported.\n",
- perf_evsel__name(counter));
- goto out_err;
- } else if (err == EMFILE) {
- ui__error("Too many events are opened.\n"
- "Try again after reducing the number of events\n");
- goto out_err;
- } else if ((err == EOPNOTSUPP) && (attr->precise_ip)) {
- ui__error("\'precise\' request may not be supported. "
- "Try removing 'p' modifier\n");
- goto out_err;
- }
-
- 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 "
- "configured?\n", err, strerror(err));
+ perf_evsel__open_strerror(counter, &opts->target,
+ errno, msg, sizeof(msg));
+ ui__error("%s\n", msg);
goto out_err;
}
}
@@ -1024,10 +944,10 @@ static int __cmd_top(struct perf_top *top)
if (perf_target__has_task(&opts->target))
perf_event__synthesize_thread_map(&top->tool, top->evlist->threads,
perf_event__process,
- &top->session->host_machine);
+ &top->session->machines.host);
else
perf_event__synthesize_threads(&top->tool, perf_event__process,
- &top->session->host_machine);
+ &top->session->machines.host);
perf_top__start_counters(top);
top->session->evlist = top->evlist;
perf_session__set_id_hdr_size(top->session);
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