#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>
#include "util/parse-options.h"
static int fd[MAX_NR_CPUS][MAX_COUNTERS];
-static int system_wide = 0;
+static int system_wide = 0;
-static int default_interval = 100000;
+static int default_interval = 0;
-static int count_filter = 5;
-static int print_entries = 15;
+static int count_filter = 5;
+static int print_entries;
-static int target_pid = -1;
-static int inherit = 0;
-static int profile_cpu = -1;
-static int nr_cpus = 0;
-static unsigned int realtime_prio = 0;
-static int group = 0;
+static int target_pid = -1;
+static int inherit = 0;
+static int profile_cpu = -1;
+static int nr_cpus = 0;
+static unsigned int realtime_prio = 0;
+static int group = 0;
static unsigned int page_size;
-static unsigned int mmap_pages = 16;
-static int freq = 0;
+static unsigned int mmap_pages = 16;
+static int freq = 1000; /* 1 KHz */
-static int delay_secs = 2;
-static int zero;
-static int dump_symtab;
+static int delay_secs = 2;
+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
struct source_line *next;
};
-static char *sym_filter = NULL;
-struct sym_entry *sym_filter_entry = NULL;
-static int sym_pcnt_filter = 5;
-static int sym_counter = 0;
-static int display_weighted = -1;
+static char *sym_filter = NULL;
+struct sym_entry *sym_filter_entry = NULL;
+static int sym_pcnt_filter = 5;
+static int sym_counter = 0;
+static int display_weighted = -1;
/*
* Symbols
*/
-static u64 min_ip;
-static u64 max_ip = -1ll;
+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;
- struct source_line *source;
- struct source_line *lines;
- struct source_line **lines_tail;
- pthread_mutex_t source_lock;
+ u16 name_len;
+ u8 origin;
+ struct map *map;
+ 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 module *module;
- struct section *section = NULL;
+ struct sym_entry_source *source;
+ struct map *map;
FILE *file;
char command[PATH_MAX*2];
- const char *path = vmlinux_name;
- u64 start, end, len;
+ const char *path;
+ u64 len;
if (!syme)
return;
- if (syme->lines) {
- pthread_mutex_lock(&syme->source_lock);
- goto out_assign;
+ if (syme->src == NULL) {
+ syme->src = zalloc(sizeof(*source));
+ if (syme->src == NULL)
+ return;
+ pthread_mutex_init(&syme->src->lock, NULL);
}
- sym = (struct symbol *)(syme + 1);
- module = sym->module;
-
- if (module)
- path = module->path;
- if (!path)
- return;
+ source = syme->src;
- start = sym->obj_start;
- if (!start)
- start = sym->start;
-
- if (module) {
- section = module->sections->find_section(module->sections, ".text");
- if (section)
- start -= section->vma;
+ if (source->lines) {
+ pthread_mutex_lock(&source->lock);
+ goto out_assign;
}
- end = start + sym->end - sym->start + 1;
+ sym = sym_entry__symbol(syme);
+ map = syme->map;
+ path = map->dso->long_name;
+
len = sym->end - sym->start;
- sprintf(command, "objdump --start-address=0x%016Lx --stop-address=0x%016Lx -dS %s", start, end, path);
+ sprintf(command,
+ "objdump --start-address=0x%016Lx "
+ "--stop-address=0x%016Lx -dS %s",
+ map->unmap_ip(map, sym->start),
+ map->unmap_ip(map, sym->end), path);
file = popen(command, "r");
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);
- if (section)
- src->eip += section->vma;
+ src->eip = map->unmap_ip(map, src->eip);
}
if (strlen(src->line)>8 && src->line[16] == ':') {
src->eip = strtoull(src->line, NULL, 16);
- if (section)
- src->eip += section->vma;
+ src->eip = map->unmap_ip(map, src->eip);
}
}
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];
- char *idx;
sprintf(pattern, "<%s>:", symbol->name);
- if (symbol->module) {
- idx = strstr(pattern, "\t");
- if (idx)
- *idx = 0;
- }
-
- 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);
}
/*
- * Symbols will be added here in record_ip and will get out
+ * Symbols will be added here in event__process_sample and will get out
* after decayed.
*/
static LIST_HEAD(active_symbols);
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");
+ printf(" samples pcnt");
else
- printf(" weight samples pcnt");
+ printf(" weight samples pcnt");
if (verbose)
printf(" RIP ");
- printf(" kernel function\n");
- printf(" %s _______ _____",
+ printf(" %-*.*s DSO\n", sym_width, sym_width, "function");
+ printf(" %s _______ _____",
nr_counters == 1 ? " " : "______");
if (verbose)
- printf(" ________________");
- printf(" _______________\n\n");
+ printf(" ________________");
+ 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;
sum_ksamples));
if (nr_counters == 1 || !display_weighted)
- printf("%20.2f - ", syme->weight);
+ printf("%20.2f ", syme->weight);
else
- printf("%9.1f %10ld - ", syme->weight, syme->snap_count);
+ printf("%9.1f %10ld ", syme->weight, syme->snap_count);
percent_color_fprintf(stdout, "%4.1f%%", pcnt);
if (verbose)
- printf(" - %016llx", sym->start);
- printf(" : %s", sym->name);
- if (sym->module)
- printf("\t[%s]", sym->module->name);
- printf("\n");
+ printf(" %016llx", sym->start);
+ 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;
NULL
};
-static int symbol_filter(struct dso *self, struct symbol *sym)
+static int symbol_filter(struct map *map, struct symbol *sym)
{
struct sym_entry *syme;
const char *name = sym->name;
strstr(name, "_text_end"))
return 1;
- syme = dso__sym_priv(self, sym);
- pthread_mutex_init(&syme->source_lock, NULL);
+ syme = symbol__priv(sym);
+ syme->map = map;
+ syme->src = NULL;
if (!sym_filter_entry && sym_filter && !strcmp(name, sym_filter))
sym_filter_entry = syme;
}
}
- return 0;
-}
-
-static int parse_symbols(void)
-{
- struct rb_node *node;
- struct symbol *sym;
- int use_modules = vmlinux_name ? 1 : 0;
-
- kernel_dso = dso__new("[kernel]", sizeof(struct sym_entry));
- if (kernel_dso == NULL)
- return -1;
-
- if (dso__load_kernel(kernel_dso, vmlinux_name, symbol_filter, verbose, use_modules) <= 0)
- goto out_delete_dso;
-
- node = rb_first(&kernel_dso->syms);
- sym = rb_entry(node, struct symbol, rb_node);
- min_ip = sym->start;
-
- node = rb_last(&kernel_dso->syms);
- sym = rb_entry(node, struct symbol, rb_node);
- max_ip = sym->end;
-
- if (dump_symtab)
- dso__fprintf(kernel_dso, stderr);
+ if (!syme->skip)
+ syme->name_len = strlen(sym->name);
return 0;
-
-out_delete_dso:
- dso__delete(kernel_dso);
- kernel_dso = NULL;
- return -1;
}
-/*
- * Binary search in the histogram table and record the hit:
- */
-static void record_ip(u64 ip, int counter)
+static void event__process_sample(const event_t *self,
+ struct perf_session *session, int counter)
{
- struct symbol *sym = dso__find_symbol(kernel_dso, ip);
-
- if (sym != NULL) {
- struct sym_entry *syme = dso__sym_priv(kernel_dso, sym);
-
- if (!syme->skip) {
- syme->count[counter]++;
- 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);
+ u64 ip = self->ip.ip;
+ struct sym_entry *syme;
+ struct addr_location al;
+ u8 origin = self->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
+
+ switch (origin) {
+ case PERF_RECORD_MISC_USER:
+ if (hide_user_symbols)
return;
- }
+ break;
+ case PERF_RECORD_MISC_KERNEL:
+ if (hide_kernel_symbols)
+ return;
+ break;
+ default:
+ return;
}
- samples--;
+ 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;
+ }
}
-static void process_event(u64 ip, int counter, int user)
+static int event__process(event_t *event, struct perf_session *session)
{
- samples++;
-
- if (user) {
- userspace_samples++;
- return;
+ switch (event->header.type) {
+ case PERF_RECORD_COMM:
+ event__process_comm(event, session);
+ break;
+ case PERF_RECORD_MMAP:
+ event__process_mmap(event, session);
+ break;
+ default:
+ break;
}
- record_ip(ip, counter);
+ return 0;
}
struct mmap_data {
return head;
}
-struct timeval last_read, this_read;
-
-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;
unsigned char *data = md->base + page_size;
int diff;
- gettimeofday(&this_read, NULL);
-
/*
* If we're further behind than half the buffer, there's a chance
* the writer will bite our tail and mess up the samples under us.
*/
diff = head - old;
if (diff > md->mask / 2 || diff < 0) {
- struct timeval iv;
- unsigned long msecs;
-
- timersub(&this_read, &last_read, &iv);
- msecs = iv.tv_sec*1000 + iv.tv_usec/1000;
-
- fprintf(stderr, "WARNING: failed to keep up with mmap data."
- " Last read %lu msecs ago.\n", msecs);
+ fprintf(stderr, "WARNING: failed to keep up with mmap data.\n");
/*
* head points to a known good entry, start there.
old = head;
}
- last_read = this_read;
-
for (; old != head;) {
event_t *event = (event_t *)&data[old & md->mask];
event = &event_copy;
}
+ if (event->header.type == PERF_RECORD_SAMPLE)
+ event__process_sample(event, self, md->counter);
+ else
+ event__process(event, self);
old += size;
-
- if (event->header.type == PERF_RECORD_SAMPLE) {
- int user =
- (event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK) == PERF_RECORD_MISC_USER;
- process_event(event->ip.ip, md->counter, user);
- }
}
md->prev = old;
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]);
}
}
attr = attrs + counter;
attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID;
- attr->freq = freq;
+
+ if (freq) {
+ attr->sample_type |= PERF_SAMPLE_PERIOD;
+ attr->freq = 1;
+ attr->sample_freq = freq;
+ }
+
attr->inherit = (cpu < 0) && inherit;
+ attr->mmap = 1;
try_again:
fd[i][counter] = sys_perf_event_open(attr, target_pid, cpu, group_fd, 0);
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, session);
+ else
+ 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();
-
page_size = sysconf(_SC_PAGE_SIZE);
argc = parse_options(argc, argv, options, top_usage, 0);
if (argc)
usage_with_options(top_usage, options);
- if (freq) {
- default_interval = freq;
- freq = 1;
- }
-
/* CPU and PID are mutually exclusive */
if (target_pid != -1 && profile_cpu != -1) {
printf("WARNING: PID switch overriding CPU\n");
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 (default_interval)
+ freq = 0;
+ else if (freq) {
+ default_interval = freq;
+ } else {
+ fprintf(stderr, "frequency and count are zero, aborting\n");
+ exit(EXIT_FAILURE);
+ }
+
+ /*
* Fill in the ones not specifically initialized via -c:
*/
for (counter = 0; counter < nr_counters; counter++) {
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();
}
projects / linux-flexiantxendom0-3.2.10.git / blobdiff