#include "perf.h"
-#include "util/symbol.h"
#include "util/color.h"
+#include "util/session.h"
+#include "util/symbol.h"
#include "util/thread.h"
#include "util/util.h"
#include <linux/rbtree.h>
static int default_interval = 0;
static int count_filter = 5;
-static int print_entries = 15;
+static int print_entries;
static int target_pid = -1;
static int inherit = 0;
static int zero = 0;
static int dump_symtab = 0;
+static bool hide_kernel_symbols = false;
+static bool hide_user_symbols = false;
+static struct winsize winsize;
+
/*
* Source
*/
* Symbols
*/
+struct sym_entry_source {
+ struct source_line *source;
+ struct source_line *lines;
+ struct source_line **lines_tail;
+ pthread_mutex_t lock;
+};
+
struct sym_entry {
struct rb_node rb_node;
struct list_head node;
- unsigned long count[MAX_COUNTERS];
unsigned long snap_count;
double weight;
int skip;
+ u16 name_len;
+ u8 origin;
struct map *map;
- struct source_line *source;
- struct source_line *lines;
- struct source_line **lines_tail;
- pthread_mutex_t source_lock;
+ struct sym_entry_source *src;
+ unsigned long count[0];
};
/*
* Source functions
*/
+static inline struct symbol *sym_entry__symbol(struct sym_entry *self)
+{
+ return ((void *)self) + symbol_conf.priv_size;
+}
+
+static 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 update_print_entries(struct winsize *ws)
+{
+ print_entries = ws->ws_row;
+
+ if (print_entries > 9)
+ print_entries -= 9;
+}
+
+static void sig_winch_handler(int sig __used)
+{
+ get_term_dimensions(&winsize);
+ update_print_entries(&winsize);
+}
+
static void parse_source(struct sym_entry *syme)
{
struct symbol *sym;
+ struct sym_entry_source *source;
struct map *map;
FILE *file;
char command[PATH_MAX*2];
if (!syme)
return;
- if (syme->lines) {
- pthread_mutex_lock(&syme->source_lock);
+ if (syme->src == NULL) {
+ syme->src = zalloc(sizeof(*source));
+ if (syme->src == NULL)
+ return;
+ pthread_mutex_init(&syme->src->lock, NULL);
+ }
+
+ source = syme->src;
+
+ if (source->lines) {
+ pthread_mutex_lock(&source->lock);
goto out_assign;
}
- sym = (struct symbol *)(syme + 1);
+ sym = sym_entry__symbol(syme);
map = syme->map;
path = map->dso->long_name;
if (!file)
return;
- pthread_mutex_lock(&syme->source_lock);
- syme->lines_tail = &syme->lines;
+ pthread_mutex_lock(&source->lock);
+ source->lines_tail = &source->lines;
while (!feof(file)) {
struct source_line *src;
size_t dummy = 0;
*c = 0;
src->next = NULL;
- *syme->lines_tail = src;
- syme->lines_tail = &src->next;
+ *source->lines_tail = src;
+ source->lines_tail = &src->next;
if (strlen(src->line)>8 && src->line[8] == ':') {
src->eip = strtoull(src->line, NULL, 16);
pclose(file);
out_assign:
sym_filter_entry = syme;
- pthread_mutex_unlock(&syme->source_lock);
+ pthread_mutex_unlock(&source->lock);
}
static void __zero_source_counters(struct sym_entry *syme)
int i;
struct source_line *line;
- line = syme->lines;
+ line = syme->src->lines;
while (line) {
for (i = 0; i < nr_counters; i++)
line->count[i] = 0;
if (syme != sym_filter_entry)
return;
- if (pthread_mutex_trylock(&syme->source_lock))
+ if (pthread_mutex_trylock(&syme->src->lock))
return;
- if (!syme->source)
+ if (syme->src == NULL || syme->src->source == NULL)
goto out_unlock;
- for (line = syme->lines; line; line = line->next) {
+ for (line = syme->src->lines; line; line = line->next) {
if (line->eip == ip) {
line->count[counter]++;
break;
break;
}
out_unlock:
- pthread_mutex_unlock(&syme->source_lock);
+ pthread_mutex_unlock(&syme->src->lock);
}
static void lookup_sym_source(struct sym_entry *syme)
{
- struct symbol *symbol = (struct symbol *)(syme + 1);
+ struct symbol *symbol = sym_entry__symbol(syme);
struct source_line *line;
char pattern[PATH_MAX];
sprintf(pattern, "<%s>:", symbol->name);
- pthread_mutex_lock(&syme->source_lock);
- for (line = syme->lines; line; line = line->next) {
+ pthread_mutex_lock(&syme->src->lock);
+ for (line = syme->src->lines; line; line = line->next) {
if (strstr(line->line, pattern)) {
- syme->source = line;
+ syme->src->source = line;
break;
}
}
- pthread_mutex_unlock(&syme->source_lock);
+ pthread_mutex_unlock(&syme->src->lock);
}
static void show_lines(struct source_line *queue, int count, int total)
if (!syme)
return;
- if (!syme->source)
+ if (!syme->src->source)
lookup_sym_source(syme);
- if (!syme->source)
+ if (!syme->src->source)
return;
- symbol = (struct symbol *)(syme + 1);
+ symbol = sym_entry__symbol(syme);
printf("Showing %s for %s\n", event_name(sym_counter), symbol->name);
printf(" Events Pcnt (>=%d%%)\n", sym_pcnt_filter);
- pthread_mutex_lock(&syme->source_lock);
- line = syme->source;
+ pthread_mutex_lock(&syme->src->lock);
+ line = syme->src->source;
while (line) {
total += line->count[sym_counter];
line = line->next;
}
- line = syme->source;
+ line = syme->src->source;
while (line) {
float pcnt = 0.0;
line->count[sym_counter] = zero ? 0 : line->count[sym_counter] * 7 / 8;
line = line->next;
}
- pthread_mutex_unlock(&syme->source_lock);
+ pthread_mutex_unlock(&syme->src->lock);
if (more)
printf("%d lines not displayed, maybe increase display entries [e]\n", more);
}
struct sym_entry *syme, *n;
struct rb_root tmp = RB_ROOT;
struct rb_node *nd;
+ int sym_width = 0, dso_width = 0, max_dso_width;
+ const int win_width = winsize.ws_col - 1;
samples = userspace_samples = 0;
list_for_each_entry_safe_from(syme, n, &active_symbols, node) {
syme->snap_count = syme->count[snap];
if (syme->snap_count != 0) {
+
+ if ((hide_user_symbols &&
+ syme->origin == PERF_RECORD_MISC_USER) ||
+ (hide_kernel_symbols &&
+ syme->origin == PERF_RECORD_MISC_KERNEL)) {
+ list_remove_active_sym(syme);
+ continue;
+ }
syme->weight = sym_weight(syme);
rb_insert_active_sym(&tmp, syme);
sum_ksamples += syme->snap_count;
puts(CONSOLE_CLEAR);
- printf(
-"------------------------------------------------------------------------------\n");
+ printf("%-*.*s\n", win_width, win_width, graph_dotted_line);
printf( " PerfTop:%8.0f irqs/sec kernel:%4.1f%% [",
samples_per_sec,
100.0 - (100.0*((samples_per_sec-ksamples_per_sec)/samples_per_sec)));
printf(", %d CPUs)\n", nr_cpus);
}
- printf("------------------------------------------------------------------------------\n\n");
+ printf("%-*.*s\n", win_width, win_width, graph_dotted_line);
if (sym_filter_entry) {
show_details(sym_filter_entry);
return;
}
+ /*
+ * Find the longest symbol name that will be displayed
+ */
+ for (nd = rb_first(&tmp); nd; nd = rb_next(nd)) {
+ syme = rb_entry(nd, struct sym_entry, rb_node);
+ if (++printed > print_entries ||
+ (int)syme->snap_count < count_filter)
+ continue;
+
+ if (syme->map->dso->long_name_len > dso_width)
+ dso_width = syme->map->dso->long_name_len;
+
+ if (syme->name_len > sym_width)
+ sym_width = syme->name_len;
+ }
+
+ printed = 0;
+
+ max_dso_width = winsize.ws_col - sym_width - 29;
+ if (dso_width > max_dso_width)
+ dso_width = max_dso_width;
+ putchar('\n');
if (nr_counters == 1)
printf(" samples pcnt");
else
if (verbose)
printf(" RIP ");
- printf(" function DSO\n");
+ printf(" %-*.*s DSO\n", sym_width, sym_width, "function");
printf(" %s _______ _____",
nr_counters == 1 ? " " : "______");
if (verbose)
printf(" ________________");
- printf(" ________________________________ ________________\n\n");
+ printf(" %-*.*s", sym_width, sym_width, graph_line);
+ printf(" %-*.*s", dso_width, dso_width, graph_line);
+ puts("\n");
for (nd = rb_first(&tmp); nd; nd = rb_next(nd)) {
struct symbol *sym;
double pcnt;
syme = rb_entry(nd, struct sym_entry, rb_node);
- sym = (struct symbol *)(syme + 1);
+ sym = sym_entry__symbol(syme);
if (++printed > print_entries || (int)syme->snap_count < count_filter)
continue;
percent_color_fprintf(stdout, "%4.1f%%", pcnt);
if (verbose)
printf(" %016llx", sym->start);
- printf(" %-32s", sym->name);
- printf(" %s", syme->map->dso->short_name);
- printf("\n");
+ printf(" %-*.*s", sym_width, sym_width, sym->name);
+ printf(" %-*.*s\n", dso_width, dso_width,
+ dso_width >= syme->map->dso->long_name_len ?
+ syme->map->dso->long_name :
+ syme->map->dso->short_name);
}
}
/* zero counters of active symbol */
if (syme) {
- pthread_mutex_lock(&syme->source_lock);
+ pthread_mutex_lock(&syme->src->lock);
__zero_source_counters(syme);
*target = NULL;
- pthread_mutex_unlock(&syme->source_lock);
+ pthread_mutex_unlock(&syme->src->lock);
}
fprintf(stdout, "\n%s: ", msg);
pthread_mutex_unlock(&active_symbols_lock);
list_for_each_entry_safe_from(syme, n, &active_symbols, node) {
- struct symbol *sym = (struct symbol *)(syme + 1);
+ struct symbol *sym = sym_entry__symbol(syme);
if (!strcmp(buf, sym->name)) {
found = syme;
char *name = NULL;
if (sym_filter_entry) {
- struct symbol *sym = (struct symbol *)(sym_filter_entry+1);
+ struct symbol *sym = sym_entry__symbol(sym_filter_entry);
name = sym->name;
}
fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", count_filter);
- if (vmlinux_name) {
+ if (symbol_conf.vmlinux_name) {
fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", sym_pcnt_filter);
fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL");
fprintf(stdout, "\t[S] stop annotation.\n");
if (nr_counters > 1)
fprintf(stdout, "\t[w] toggle display weighted/count[E]r. \t(%d)\n", display_weighted ? 1 : 0);
+ fprintf(stdout,
+ "\t[K] hide kernel_symbols symbols. \t(%s)\n",
+ hide_kernel_symbols ? "yes" : "no");
+ fprintf(stdout,
+ "\t[U] hide user symbols. \t(%s)\n",
+ hide_user_symbols ? "yes" : "no");
fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", zero ? 1 : 0);
fprintf(stdout, "\t[qQ] quit.\n");
}
case 'z':
case 'q':
case 'Q':
+ case 'K':
+ case 'U':
return 1;
case 'E':
case 'w':
case 'F':
case 's':
case 'S':
- return vmlinux_name ? 1 : 0;
+ return symbol_conf.vmlinux_name ? 1 : 0;
default:
break;
}
break;
case 'e':
prompt_integer(&print_entries, "Enter display entries (lines)");
+ if (print_entries == 0) {
+ sig_winch_handler(SIGWINCH);
+ signal(SIGWINCH, sig_winch_handler);
+ } else
+ signal(SIGWINCH, SIG_DFL);
break;
case 'E':
if (nr_counters > 1) {
case 'F':
prompt_percent(&sym_pcnt_filter, "Enter details display event filter (percent)");
break;
+ case 'K':
+ hide_kernel_symbols = !hide_kernel_symbols;
+ break;
case 'q':
case 'Q':
printf("exiting.\n");
+ if (dump_symtab)
+ dsos__fprintf(stderr);
exit(0);
case 's':
prompt_symbol(&sym_filter_entry, "Enter details symbol");
else {
struct sym_entry *syme = sym_filter_entry;
- pthread_mutex_lock(&syme->source_lock);
+ pthread_mutex_lock(&syme->src->lock);
sym_filter_entry = NULL;
__zero_source_counters(syme);
- pthread_mutex_unlock(&syme->source_lock);
+ pthread_mutex_unlock(&syme->src->lock);
}
break;
+ case 'U':
+ hide_user_symbols = !hide_user_symbols;
+ break;
case 'w':
display_weighted = ~display_weighted;
break;
syme = symbol__priv(sym);
syme->map = map;
- pthread_mutex_init(&syme->source_lock, NULL);
+ syme->src = NULL;
if (!sym_filter_entry && sym_filter && !strcmp(name, sym_filter))
sym_filter_entry = syme;
}
}
- return 0;
-}
-
-static int parse_symbols(void)
-{
- if (dsos__load_kernel(vmlinux_name, symbol_filter, 1) <= 0)
- return -1;
-
- if (dump_symtab)
- dsos__fprintf(stderr);
+ if (!syme->skip)
+ syme->name_len = strlen(sym->name);
return 0;
}
-static void event__process_sample(const event_t *self, int counter)
+static void event__process_sample(const event_t *self,
+ struct perf_session *session, int counter)
{
u64 ip = self->ip.ip;
- struct map *map;
struct sym_entry *syme;
- struct symbol *sym;
-
- switch (self->header.misc & PERF_RECORD_MISC_CPUMODE_MASK) {
- case PERF_RECORD_MISC_USER: {
- struct thread *thread = threads__findnew(self->ip.pid);
+ struct addr_location al;
+ u8 origin = self->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
- if (thread == NULL)
- return;
-
- map = thread__find_map(thread, ip);
- if (map != NULL) {
- ip = map->map_ip(map, ip);
- sym = map__find_symbol(map, ip, symbol_filter);
- if (sym == NULL)
- return;
- userspace_samples++;
- break;
- }
- }
- /*
- * If this is outside of all known maps,
- * and is a negative address, try to look it
- * up in the kernel dso, as it might be a
- * vsyscall or vdso (which executes in user-mode).
- */
- if ((long long)ip >= 0)
+ switch (origin) {
+ case PERF_RECORD_MISC_USER:
+ if (hide_user_symbols)
return;
- /* Fall thru */
+ break;
case PERF_RECORD_MISC_KERNEL:
- sym = kernel_maps__find_symbol(ip, &map);
- if (sym == NULL)
+ if (hide_kernel_symbols)
return;
break;
default:
return;
}
- syme = symbol__priv(sym);
+ if (event__preprocess_sample(self, session, &al, symbol_filter) < 0 ||
+ al.sym == NULL || al.filtered)
+ return;
+ syme = symbol__priv(al.sym);
if (!syme->skip) {
syme->count[counter]++;
+ syme->origin = origin;
record_precise_ip(syme, counter, ip);
pthread_mutex_lock(&active_symbols_lock);
if (list_empty(&syme->node) || !syme->node.next)
__list_insert_active_sym(syme);
pthread_mutex_unlock(&active_symbols_lock);
+ if (origin == PERF_RECORD_MISC_USER)
+ ++userspace_samples;
++samples;
- return;
}
}
-static void event__process_mmap(event_t *self)
-{
- struct thread *thread = threads__findnew(self->mmap.pid);
-
- if (thread != NULL) {
- struct map *map = map__new(&self->mmap, NULL, 0);
- if (map != NULL)
- thread__insert_map(thread, map);
- }
-}
-
-static void event__process_comm(event_t *self)
-{
- struct thread *thread = threads__findnew(self->comm.pid);
-
- if (thread != NULL)
- thread__set_comm(thread, self->comm.comm);
-}
-
-static int event__process(event_t *event)
+static int event__process(event_t *event, struct perf_session *session)
{
switch (event->header.type) {
case PERF_RECORD_COMM:
- event__process_comm(event);
+ event__process_comm(event, session);
break;
case PERF_RECORD_MMAP:
- event__process_mmap(event);
+ event__process_mmap(event, session);
break;
default:
break;
return head;
}
-static void mmap_read_counter(struct mmap_data *md)
+static void perf_session__mmap_read_counter(struct perf_session *self,
+ struct mmap_data *md)
{
unsigned int head = mmap_read_head(md);
unsigned int old = md->prev;
}
if (event->header.type == PERF_RECORD_SAMPLE)
- event__process_sample(event, md->counter);
+ event__process_sample(event, self, md->counter);
else
- event__process(event);
+ event__process(event, self);
old += size;
}
static struct pollfd event_array[MAX_NR_CPUS * MAX_COUNTERS];
static struct mmap_data mmap_array[MAX_NR_CPUS][MAX_COUNTERS];
-static void mmap_read(void)
+static void perf_session__mmap_read(struct perf_session *self)
{
int i, counter;
for (i = 0; i < nr_cpus; i++) {
for (counter = 0; counter < nr_counters; counter++)
- mmap_read_counter(&mmap_array[i][counter]);
+ perf_session__mmap_read_counter(self, &mmap_array[i][counter]);
}
}
if (fd[i][counter] < 0) {
int err = errno;
- if (err == EPERM)
+ if (err == EPERM || err == EACCES)
die("No permission - are you root?\n");
/*
* If it's cycles then fall back to hrtimer
pthread_t thread;
int i, counter;
int ret;
+ /*
+ * FIXME: perf_session__new should allow passing a O_MMAP, so that all this
+ * mmap reading, etc is encapsulated in it. Use O_WRONLY for now.
+ */
+ struct perf_session *session = perf_session__new(NULL, O_WRONLY, false);
+ if (session == NULL)
+ return -ENOMEM;
if (target_pid != -1)
- event__synthesize_thread(target_pid, event__process);
+ event__synthesize_thread(target_pid, event__process, session);
else
- event__synthesize_threads(event__process);
+ event__synthesize_threads(event__process, session);
for (i = 0; i < nr_cpus; i++) {
group_fd = -1;
/* Wait for a minimal set of events before starting the snapshot */
poll(event_array, nr_poll, 100);
- mmap_read();
+ perf_session__mmap_read(session);
if (pthread_create(&thread, NULL, display_thread, NULL)) {
printf("Could not create display thread.\n");
while (1) {
int hits = samples;
- mmap_read();
+ perf_session__mmap_read(session);
if (hits == samples)
ret = poll(event_array, nr_poll, 100);
"system-wide collection from all CPUs"),
OPT_INTEGER('C', "CPU", &profile_cpu,
"CPU to profile on"),
- OPT_STRING('k', "vmlinux", &vmlinux_name, "file", "vmlinux pathname"),
+ OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
+ "file", "vmlinux pathname"),
+ OPT_BOOLEAN('K', "hide_kernel_symbols", &hide_kernel_symbols,
+ "hide kernel symbols"),
OPT_INTEGER('m', "mmap-pages", &mmap_pages,
"number of mmap data pages"),
OPT_INTEGER('r', "realtime", &realtime_prio,
"profile at this frequency"),
OPT_INTEGER('E', "entries", &print_entries,
"display this many functions"),
+ OPT_BOOLEAN('U', "hide_user_symbols", &hide_user_symbols,
+ "hide user symbols"),
OPT_BOOLEAN('v', "verbose", &verbose,
"be more verbose (show counter open errors, etc)"),
OPT_END()
{
int counter;
- symbol__init(sizeof(struct sym_entry));
-
page_size = sysconf(_SC_PAGE_SIZE);
argc = parse_options(argc, argv, options, top_usage, 0);
if (!nr_counters)
nr_counters = 1;
+ symbol_conf.priv_size = (sizeof(struct sym_entry) +
+ (nr_counters + 1) * sizeof(unsigned long));
+ if (symbol_conf.vmlinux_name == NULL)
+ symbol_conf.try_vmlinux_path = true;
+ if (symbol__init() < 0)
+ return -1;
+
if (delay_secs < 1)
delay_secs = 1;
- parse_symbols();
parse_source(sym_filter_entry);
-
/*
* User specified count overrides default frequency.
*/
if (target_pid != -1 || profile_cpu != -1)
nr_cpus = 1;
+ get_term_dimensions(&winsize);
+ if (print_entries == 0) {
+ update_print_entries(&winsize);
+ signal(SIGWINCH, sig_winch_handler);
+ }
+
return __cmd_top();
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff