#include "util/thread.h"
#include "util/sort.h"
#include "util/hist.h"
+#include "util/process_events.h"
static char const *input_name = "perf.data";
static int force;
static int input;
-static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV;
static int full_paths;
static unsigned long page_size;
static unsigned long mmap_window = 32;
-static struct rb_root threads;
-static struct thread *last_match;
-
+struct sym_hist {
+ u64 sum;
+ u64 ip[0];
+};
struct sym_ext {
struct rb_node node;
char *path;
};
+struct sym_priv {
+ struct sym_hist *hist;
+ struct sym_ext *ext;
+};
+
+static struct symbol_conf symbol_conf = {
+ .priv_size = sizeof(struct sym_priv),
+ .try_vmlinux_path = true,
+};
+
+static const char *sym_hist_filter;
+
+static int symbol_filter(struct map *map __used, struct symbol *sym)
+{
+ if (sym_hist_filter == NULL ||
+ strcmp(sym->name, sym_hist_filter) == 0) {
+ struct sym_priv *priv = symbol__priv(sym);
+ const int size = (sizeof(*priv->hist) +
+ (sym->end - sym->start) * sizeof(u64));
+
+ priv->hist = malloc(size);
+ if (priv->hist)
+ memset(priv->hist, 0, size);
+ return 0;
+ }
+ /*
+ * FIXME: We should really filter it out, as we don't want to go thru symbols
+ * we're not interested, and if a DSO ends up with no symbols, delete it too,
+ * but right now the kernel loading routines in symbol.c bail out if no symbols
+ * are found, fix it later.
+ */
+ return 0;
+}
/*
* collect histogram counts
{
unsigned int sym_size, offset;
struct symbol *sym = he->sym;
+ struct sym_priv *priv;
+ struct sym_hist *h;
he->count++;
- if (!sym || !sym->hist)
+ if (!sym || !he->map)
+ return;
+
+ priv = symbol__priv(sym);
+ if (!priv->hist)
return;
sym_size = sym->end - sym->start;
offset = ip - sym->start;
+ if (verbose)
+ fprintf(stderr, "%s: ip=%Lx\n", __func__,
+ he->map->unmap_ip(he->map, ip));
+
if (offset >= sym_size)
return;
- sym->hist_sum++;
- sym->hist[offset]++;
+ h = priv->hist;
+ h->sum++;
+ h->ip[offset]++;
if (verbose >= 3)
printf("%p %s: count++ [ip: %p, %08Lx] => %Ld\n",
(void *)(unsigned long)he->sym->start,
he->sym->name,
(void *)(unsigned long)ip, ip - he->sym->start,
- sym->hist[offset]);
+ h->ip[offset]);
}
-static int
-hist_entry__add(struct thread *thread, struct map *map, struct dso *dso,
- struct symbol *sym, u64 ip, char level)
+static int hist_entry__add(struct thread *thread, struct map *map,
+ struct symbol *sym, u64 ip, u64 count, char level)
{
- struct rb_node **p = &hist.rb_node;
- struct rb_node *parent = NULL;
- struct hist_entry *he;
- struct hist_entry entry = {
- .thread = thread,
- .map = map,
- .dso = dso,
- .sym = sym,
- .ip = ip,
- .level = level,
- .count = 1,
- };
- int cmp;
-
- while (*p != NULL) {
- parent = *p;
- he = rb_entry(parent, struct hist_entry, rb_node);
-
- cmp = hist_entry__cmp(&entry, he);
-
- if (!cmp) {
- hist_hit(he, ip);
-
- return 0;
- }
-
- if (cmp < 0)
- p = &(*p)->rb_left;
- else
- p = &(*p)->rb_right;
- }
-
- he = malloc(sizeof(*he));
- if (!he)
+ bool hit;
+ struct hist_entry *he = __hist_entry__add(thread, map, sym, NULL, ip,
+ count, level, &hit);
+ if (he == NULL)
return -ENOMEM;
- *he = entry;
- rb_link_node(&he->rb_node, parent, p);
- rb_insert_color(&he->rb_node, &hist);
-
+ hist_hit(he, ip);
return 0;
}
process_sample_event(event_t *event, unsigned long offset, unsigned long head)
{
char level;
- int show = 0;
- struct dso *dso = NULL;
- struct thread *thread;
u64 ip = event->ip.ip;
struct map *map = NULL;
-
- thread = threads__findnew(event->ip.pid, &threads, &last_match);
+ struct symbol *sym = NULL;
+ struct thread *thread = threads__findnew(event->ip.pid);
dump_printf("%p [%p]: PERF_EVENT (IP, %d): %d: %p\n",
(void *)(offset + head),
event->ip.pid,
(void *)(long)ip);
- dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
-
if (thread == NULL) {
fprintf(stderr, "problem processing %d event, skipping it.\n",
event->header.type);
return -1;
}
+ dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
+
if (event->header.misc & PERF_RECORD_MISC_KERNEL) {
- show = SHOW_KERNEL;
level = 'k';
-
- dso = kernel_dso;
-
- dump_printf(" ...... dso: %s\n", dso->name);
-
+ sym = kernel_maps__find_function(ip, &map, symbol_filter);
+ dump_printf(" ...... dso: %s\n",
+ map ? map->dso->long_name : "<not found>");
} else if (event->header.misc & PERF_RECORD_MISC_USER) {
-
- show = SHOW_USER;
level = '.';
-
map = thread__find_map(thread, ip);
if (map != NULL) {
+got_map:
ip = map->map_ip(map, ip);
- dso = map->dso;
+ sym = map__find_function(map, ip, symbol_filter);
} else {
/*
* 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 (which executes in user-mode):
+ * vsyscall or vdso (which executes in user-mode).
+ *
+ * XXX This is nasty, we should have a symbol list in
+ * the "[vdso]" dso, but for now lets use the old
+ * trick of looking in the whole kernel symbol list.
*/
- if ((long long)ip < 0)
- dso = kernel_dso;
+ if ((long long)ip < 0) {
+ map = kernel_map;
+ goto got_map;
+ }
}
- dump_printf(" ...... dso: %s\n", dso ? dso->name : "<not found>");
-
+ dump_printf(" ...... dso: %s\n",
+ map ? map->dso->long_name : "<not found>");
} else {
- show = SHOW_HV;
level = 'H';
dump_printf(" ...... dso: [hypervisor]\n");
}
- if (show & show_mask) {
- struct symbol *sym = NULL;
-
- if (dso)
- sym = dso->find_symbol(dso, ip);
-
- if (hist_entry__add(thread, map, dso, sym, ip, level)) {
- fprintf(stderr,
- "problem incrementing symbol count, skipping event\n");
- return -1;
- }
+ if (hist_entry__add(thread, map, sym, ip, 1, level)) {
+ fprintf(stderr, "problem incrementing symbol count, "
+ "skipping event\n");
+ return -1;
}
total++;
return 0;
}
-static int
-process_mmap_event(event_t *event, unsigned long offset, unsigned long head)
-{
- struct thread *thread;
- struct map *map = map__new(&event->mmap, NULL, 0);
-
- thread = threads__findnew(event->mmap.pid, &threads, &last_match);
-
- dump_printf("%p [%p]: PERF_RECORD_MMAP %d: [%p(%p) @ %p]: %s\n",
- (void *)(offset + head),
- (void *)(long)(event->header.size),
- event->mmap.pid,
- (void *)(long)event->mmap.start,
- (void *)(long)event->mmap.len,
- (void *)(long)event->mmap.pgoff,
- event->mmap.filename);
-
- if (thread == NULL || map == NULL) {
- dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n");
- return 0;
- }
-
- thread__insert_map(thread, map);
- total_mmap++;
-
- return 0;
-}
-
static int
process_comm_event(event_t *event, unsigned long offset, unsigned long head)
{
- struct thread *thread;
+ struct thread *thread = threads__findnew(event->comm.pid);
- thread = threads__findnew(event->comm.pid, &threads, &last_match);
dump_printf("%p [%p]: PERF_RECORD_COMM: %s:%d\n",
(void *)(offset + head),
(void *)(long)(event->header.size),
return 0;
}
-static int
-process_fork_event(event_t *event, unsigned long offset, unsigned long head)
-{
- struct thread *thread;
- struct thread *parent;
-
- thread = threads__findnew(event->fork.pid, &threads, &last_match);
- parent = threads__findnew(event->fork.ppid, &threads, &last_match);
- dump_printf("%p [%p]: PERF_RECORD_FORK: %d:%d\n",
- (void *)(offset + head),
- (void *)(long)(event->header.size),
- event->fork.pid, event->fork.ppid);
-
- /*
- * A thread clone will have the same PID for both
- * parent and child.
- */
- if (thread == parent)
- return 0;
-
- if (!thread || !parent || thread__fork(thread, parent)) {
- dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n");
- return -1;
- }
- total_fork++;
-
- return 0;
-}
-
static int
process_event(event_t *event, unsigned long offset, unsigned long head)
{
return process_comm_event(event, offset, head);
case PERF_RECORD_FORK:
- return process_fork_event(event, offset, head);
+ return process_task_event(event, offset, head);
/*
* We dont process them right now but they are fine:
*/
return 0;
}
-static int
-parse_line(FILE *file, struct symbol *sym, u64 start, u64 len)
+static int parse_line(FILE *file, struct hist_entry *he, u64 len)
{
+ struct symbol *sym = he->sym;
char *line = NULL, *tmp, *tmp2;
static const char *prev_line;
static const char *prev_color;
unsigned int offset;
size_t line_len;
+ u64 start;
s64 line_ip;
int ret;
char *c;
line_ip = -1;
}
+ start = he->map->unmap_ip(he->map, sym->start);
+
if (line_ip != -1) {
const char *path = NULL;
unsigned int hits = 0;
double percent = 0.0;
const char *color;
- struct sym_ext *sym_ext = sym->priv;
+ struct sym_priv *priv = symbol__priv(sym);
+ struct sym_ext *sym_ext = priv->ext;
+ struct sym_hist *h = priv->hist;
offset = line_ip - start;
if (offset < len)
- hits = sym->hist[offset];
+ hits = h->ip[offset];
if (offset < len && sym_ext) {
path = sym_ext[offset].path;
percent = sym_ext[offset].percent;
- } else if (sym->hist_sum)
- percent = 100.0 * hits / sym->hist_sum;
+ } else if (h->sum)
+ percent = 100.0 * hits / h->sum;
color = get_percent_color(percent);
rb_insert_color(&sym_ext->node, &root_sym_ext);
}
-static void free_source_line(struct symbol *sym, int len)
+static void free_source_line(struct hist_entry *he, int len)
{
- struct sym_ext *sym_ext = sym->priv;
+ struct sym_priv *priv = symbol__priv(he->sym);
+ struct sym_ext *sym_ext = priv->ext;
int i;
if (!sym_ext)
free(sym_ext[i].path);
free(sym_ext);
- sym->priv = NULL;
+ priv->ext = NULL;
root_sym_ext = RB_ROOT;
}
/* Get the filename:line for the colored entries */
static void
-get_source_line(struct symbol *sym, u64 start, int len, const char *filename)
+get_source_line(struct hist_entry *he, int len, const char *filename)
{
+ struct symbol *sym = he->sym;
+ u64 start;
int i;
char cmd[PATH_MAX * 2];
struct sym_ext *sym_ext;
+ struct sym_priv *priv = symbol__priv(sym);
+ struct sym_hist *h = priv->hist;
- if (!sym->hist_sum)
+ if (!h->sum)
return;
- sym->priv = calloc(len, sizeof(struct sym_ext));
- if (!sym->priv)
+ sym_ext = priv->ext = calloc(len, sizeof(struct sym_ext));
+ if (!priv->ext)
return;
- sym_ext = sym->priv;
+ start = he->map->unmap_ip(he->map, sym->start);
for (i = 0; i < len; i++) {
char *path = NULL;
u64 offset;
FILE *fp;
- sym_ext[i].percent = 100.0 * sym->hist[i] / sym->hist_sum;
+ sym_ext[i].percent = 100.0 * h->ip[i] / h->sum;
if (sym_ext[i].percent <= 0.5)
continue;
}
}
-static void annotate_sym(struct dso *dso, struct symbol *sym)
+static void annotate_sym(struct hist_entry *he)
{
- const char *filename = dso->name, *d_filename;
- u64 start, end, len;
+ struct map *map = he->map;
+ struct dso *dso = map->dso;
+ struct symbol *sym = he->sym;
+ const char *filename = dso->long_name, *d_filename;
+ u64 len;
char command[PATH_MAX*2];
FILE *file;
if (!filename)
return;
- if (sym->module)
- filename = sym->module->path;
- else if (dso == kernel_dso)
- filename = vmlinux_name;
-
- start = sym->obj_start;
- if (!start)
- start = sym->start;
+
+ if (verbose)
+ fprintf(stderr, "%s: filename=%s, sym=%s, start=%Lx, end=%Lx\n",
+ __func__, filename, sym->name,
+ map->unmap_ip(map, sym->start),
+ map->unmap_ip(map, sym->end));
+
if (full_paths)
d_filename = filename;
else
d_filename = basename(filename);
- end = start + sym->end - sym->start + 1;
len = sym->end - sym->start;
if (print_line) {
- get_source_line(sym, start, len, filename);
+ get_source_line(he, len, filename);
print_summary(filename);
}
printf("------------------------------------------------\n");
if (verbose >= 2)
- printf("annotating [%p] %30s : [%p] %30s\n", dso, dso->name, sym, sym->name);
+ printf("annotating [%p] %30s : [%p] %30s\n",
+ dso, dso->long_name, sym, sym->name);
sprintf(command, "objdump --start-address=0x%016Lx --stop-address=0x%016Lx -dS %s|grep -v %s",
- (u64)start, (u64)end, filename, filename);
+ map->unmap_ip(map, sym->start), map->unmap_ip(map, sym->end),
+ filename, filename);
if (verbose >= 3)
printf("doing: %s\n", command);
return;
while (!feof(file)) {
- if (parse_line(file, sym, start, len) < 0)
+ if (parse_line(file, he, len) < 0)
break;
}
pclose(file);
if (print_line)
- free_source_line(sym, len);
+ free_source_line(he, len);
}
static void find_annotations(void)
{
struct rb_node *nd;
- struct dso *dso;
- int count = 0;
- list_for_each_entry(dso, &dsos, node) {
+ for (nd = rb_first(&output_hists); nd; nd = rb_next(nd)) {
+ struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
+ struct sym_priv *priv;
- for (nd = rb_first(&dso->syms); nd; nd = rb_next(nd)) {
- struct symbol *sym = rb_entry(nd, struct symbol, rb_node);
+ if (he->sym == NULL)
+ continue;
- if (sym->hist) {
- annotate_sym(dso, sym);
- count++;
- }
- }
- }
+ priv = symbol__priv(he->sym);
+ if (priv->hist == NULL)
+ continue;
- if (!count)
- printf(" Error: symbol '%s' not present amongst the samples.\n", sym_hist_filter);
+ annotate_sym(he);
+ /*
+ * Since we have a hist_entry per IP for the same symbol, free
+ * he->sym->hist to signal we already processed this symbol.
+ */
+ free(priv->hist);
+ priv->hist = NULL;
+ }
}
static int __cmd_annotate(void)
uint32_t size;
char *buf;
- register_idle_thread(&threads, &last_match);
+ register_idle_thread();
input = open(input_name, O_RDONLY);
if (input < 0) {
exit(0);
}
- if (load_kernel() < 0) {
- perror("failed to load kernel symbols");
- return EXIT_FAILURE;
- }
-
remap:
buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ,
MAP_SHARED, input, offset);
if (dump_trace)
return 0;
- if (verbose >= 3)
- threads__fprintf(stdout, &threads);
+ if (verbose > 3)
+ threads__fprintf(stdout);
- if (verbose >= 2)
+ if (verbose > 2)
dsos__fprintf(stdout);
collapse__resort();
"be more verbose (show symbol address, etc)"),
OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
"dump raw trace in ASCII"),
- OPT_STRING('k', "vmlinux", &vmlinux_name, "file", "vmlinux pathname"),
- OPT_BOOLEAN('m', "modules", &modules,
+ OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
+ "file", "vmlinux pathname"),
+ OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
"load module symbols - WARNING: use only with -k and LIVE kernel"),
OPT_BOOLEAN('l', "print-line", &print_line,
"print matching source lines (may be slow)"),
int cmd_annotate(int argc, const char **argv, const char *prefix __used)
{
- symbol__init();
+ if (symbol__init(&symbol_conf) < 0)
+ return -1;
page_size = getpagesize();
sym_hist_filter = argv[0];
}
- if (!sym_hist_filter)
- usage_with_options(annotate_usage, options);
-
setup_pager();
if (field_sep && *field_sep == '.') {
projects / karo-tx-linux.git / blobdiff