+#include "util.h"
+#include "build-id.h"
#include "hist.h"
#include "session.h"
#include "sort.h"
#include <math.h>
+enum hist_filter {
+ HIST_FILTER__DSO,
+ HIST_FILTER__THREAD,
+ HIST_FILTER__PARENT,
+};
+
struct callchain_param callchain_param = {
.mode = CHAIN_GRAPH_REL,
.min_percent = 0.5
};
+u16 hists__col_len(struct hists *self, enum hist_column col)
+{
+ return self->col_len[col];
+}
+
+void hists__set_col_len(struct hists *self, enum hist_column col, u16 len)
+{
+ self->col_len[col] = len;
+}
+
+bool hists__new_col_len(struct hists *self, enum hist_column col, u16 len)
+{
+ if (len > hists__col_len(self, col)) {
+ hists__set_col_len(self, col, len);
+ return true;
+ }
+ return false;
+}
+
+static void hists__reset_col_len(struct hists *self)
+{
+ enum hist_column col;
+
+ for (col = 0; col < HISTC_NR_COLS; ++col)
+ hists__set_col_len(self, col, 0);
+}
+
+static void hists__calc_col_len(struct hists *self, struct hist_entry *h)
+{
+ u16 len;
+
+ if (h->ms.sym)
+ hists__new_col_len(self, HISTC_SYMBOL, h->ms.sym->namelen);
+
+ len = thread__comm_len(h->thread);
+ if (hists__new_col_len(self, HISTC_COMM, len))
+ hists__set_col_len(self, HISTC_THREAD, len + 6);
+
+ if (h->ms.map) {
+ len = dso__name_len(h->ms.map->dso);
+ hists__new_col_len(self, HISTC_DSO, len);
+ }
+}
+
+static void hist_entry__add_cpumode_period(struct hist_entry *self,
+ unsigned int cpumode, u64 period)
+{
+ switch (cpumode) {
+ case PERF_RECORD_MISC_KERNEL:
+ self->period_sys += period;
+ break;
+ case PERF_RECORD_MISC_USER:
+ self->period_us += period;
+ break;
+ case PERF_RECORD_MISC_GUEST_KERNEL:
+ self->period_guest_sys += period;
+ break;
+ case PERF_RECORD_MISC_GUEST_USER:
+ self->period_guest_us += period;
+ break;
+ default:
+ break;
+ }
+}
+
/*
- * histogram, sorted on item, collects counts
+ * histogram, sorted on item, collects periods
*/
-struct hist_entry *__perf_session__add_hist_entry(struct rb_root *hists,
- struct addr_location *al,
- struct symbol *sym_parent,
- u64 count, bool *hit)
+static struct hist_entry *hist_entry__new(struct hist_entry *template)
+{
+ size_t callchain_size = symbol_conf.use_callchain ? sizeof(struct callchain_root) : 0;
+ struct hist_entry *self = malloc(sizeof(*self) + callchain_size);
+
+ if (self != NULL) {
+ *self = *template;
+ self->nr_events = 1;
+ if (self->ms.map)
+ self->ms.map->referenced = true;
+ if (symbol_conf.use_callchain)
+ callchain_init(self->callchain);
+ }
+
+ return self;
+}
+
+static void hists__inc_nr_entries(struct hists *self, struct hist_entry *h)
+{
+ if (!h->filtered) {
+ hists__calc_col_len(self, h);
+ ++self->nr_entries;
+ }
+}
+
+static u8 symbol__parent_filter(const struct symbol *parent)
{
- struct rb_node **p = &hists->rb_node;
+ if (symbol_conf.exclude_other && parent == NULL)
+ return 1 << HIST_FILTER__PARENT;
+ return 0;
+}
+
+struct hist_entry *__hists__add_entry(struct hists *self,
+ struct addr_location *al,
+ struct symbol *sym_parent, u64 period)
+{
+ struct rb_node **p = &self->entries.rb_node;
struct rb_node *parent = NULL;
struct hist_entry *he;
struct hist_entry entry = {
.thread = al->thread,
- .map = al->map,
- .sym = al->sym,
+ .ms = {
+ .map = al->map,
+ .sym = al->sym,
+ },
+ .cpu = al->cpu,
.ip = al->addr,
.level = al->level,
- .count = count,
+ .period = period,
.parent = sym_parent,
+ .filtered = symbol__parent_filter(sym_parent),
};
int cmp;
cmp = hist_entry__cmp(&entry, he);
if (!cmp) {
- *hit = true;
- return he;
+ he->period += period;
+ ++he->nr_events;
+ goto out;
}
if (cmp < 0)
p = &(*p)->rb_right;
}
- he = malloc(sizeof(*he));
+ he = hist_entry__new(&entry);
if (!he)
return NULL;
- *he = entry;
rb_link_node(&he->rb_node, parent, p);
- rb_insert_color(&he->rb_node, hists);
- *hit = false;
+ rb_insert_color(&he->rb_node, &self->entries);
+ hists__inc_nr_entries(self, he);
+out:
+ hist_entry__add_cpumode_period(he, al->cpumode, period);
return he;
}
int64_t cmp = 0;
list_for_each_entry(se, &hist_entry__sort_list, list) {
- cmp = se->cmp(left, right);
+ cmp = se->se_cmp(left, right);
if (cmp)
break;
}
list_for_each_entry(se, &hist_entry__sort_list, list) {
int64_t (*f)(struct hist_entry *, struct hist_entry *);
- f = se->collapse ?: se->cmp;
+ f = se->se_collapse ?: se->se_cmp;
cmp = f(left, right);
if (cmp)
* collapse the histogram
*/
-static void collapse__insert_entry(struct rb_root *root, struct hist_entry *he)
+static bool collapse__insert_entry(struct rb_root *root, struct hist_entry *he)
{
struct rb_node **p = &root->rb_node;
struct rb_node *parent = NULL;
cmp = hist_entry__collapse(iter, he);
if (!cmp) {
- iter->count += he->count;
+ iter->period += he->period;
hist_entry__free(he);
- return;
+ return false;
}
if (cmp < 0)
rb_link_node(&he->rb_node, parent, p);
rb_insert_color(&he->rb_node, root);
+ return true;
}
-void perf_session__collapse_resort(struct rb_root *hists)
+void hists__collapse_resort(struct hists *self)
{
struct rb_root tmp;
struct rb_node *next;
return;
tmp = RB_ROOT;
- next = rb_first(hists);
+ next = rb_first(&self->entries);
+ self->nr_entries = 0;
+ hists__reset_col_len(self);
while (next) {
n = rb_entry(next, struct hist_entry, rb_node);
next = rb_next(&n->rb_node);
- rb_erase(&n->rb_node, hists);
- collapse__insert_entry(&tmp, n);
+ rb_erase(&n->rb_node, &self->entries);
+ if (collapse__insert_entry(&tmp, n))
+ hists__inc_nr_entries(self, n);
}
- *hists = tmp;
+ self->entries = tmp;
}
/*
- * reverse the map, sort on count.
+ * reverse the map, sort on period.
*/
-static void perf_session__insert_output_hist_entry(struct rb_root *root,
- struct hist_entry *he,
- u64 min_callchain_hits)
+static void __hists__insert_output_entry(struct rb_root *entries,
+ struct hist_entry *he,
+ u64 min_callchain_hits)
{
- struct rb_node **p = &root->rb_node;
+ struct rb_node **p = &entries->rb_node;
struct rb_node *parent = NULL;
struct hist_entry *iter;
if (symbol_conf.use_callchain)
- callchain_param.sort(&he->sorted_chain, &he->callchain,
+ callchain_param.sort(&he->sorted_chain, he->callchain,
min_callchain_hits, &callchain_param);
while (*p != NULL) {
parent = *p;
iter = rb_entry(parent, struct hist_entry, rb_node);
- if (he->count > iter->count)
+ if (he->period > iter->period)
p = &(*p)->rb_left;
else
p = &(*p)->rb_right;
}
rb_link_node(&he->rb_node, parent, p);
- rb_insert_color(&he->rb_node, root);
+ rb_insert_color(&he->rb_node, entries);
}
-void perf_session__output_resort(struct rb_root *hists, u64 total_samples)
+void hists__output_resort(struct hists *self)
{
struct rb_root tmp;
struct rb_node *next;
struct hist_entry *n;
u64 min_callchain_hits;
- min_callchain_hits =
- total_samples * (callchain_param.min_percent / 100);
+ min_callchain_hits = self->stats.total_period * (callchain_param.min_percent / 100);
tmp = RB_ROOT;
- next = rb_first(hists);
+ next = rb_first(&self->entries);
+
+ self->nr_entries = 0;
+ hists__reset_col_len(self);
while (next) {
n = rb_entry(next, struct hist_entry, rb_node);
next = rb_next(&n->rb_node);
- rb_erase(&n->rb_node, hists);
- perf_session__insert_output_hist_entry(&tmp, n,
- min_callchain_hits);
+ rb_erase(&n->rb_node, &self->entries);
+ __hists__insert_output_entry(&tmp, n, min_callchain_hits);
+ hists__inc_nr_entries(self, n);
}
- *hists = tmp;
+ self->entries = tmp;
}
static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin)
}
static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain,
- int depth, int depth_mask, int count,
+ int depth, int depth_mask, int period,
u64 total_samples, int hits,
int left_margin)
{
ret += fprintf(fp, "|");
else
ret += fprintf(fp, " ");
- if (!count && i == depth - 1) {
+ if (!period && i == depth - 1) {
double percent;
percent = hits * 100.0 / total_samples;
} else
ret += fprintf(fp, "%s", " ");
}
- if (chain->sym)
- ret += fprintf(fp, "%s\n", chain->sym->name);
+ if (chain->ms.sym)
+ ret += fprintf(fp, "%s\n", chain->ms.sym->name);
else
ret += fprintf(fp, "%p\n", (void *)(long)chain->ip);
}
strcpy(rem_sq_bracket->name, "[...]");
- rem_hits.sym = rem_sq_bracket;
+ rem_hits.ms.sym = rem_sq_bracket;
}
static size_t __callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
u64 remaining;
size_t ret = 0;
int i;
+ uint entries_printed = 0;
if (callchain_param.mode == CHAIN_GRAPH_REL)
new_total = self->children_hit;
new_depth_mask &= ~(1 << (depth - 1));
/*
- * But we keep the older depth mask for the line seperator
+ * But we keep the older depth mask for the line separator
* to keep the level link until we reach the last child
*/
ret += ipchain__fprintf_graph_line(fp, depth, depth_mask,
left_margin);
i = 0;
list_for_each_entry(chain, &child->val, list) {
- if (chain->ip >= PERF_CONTEXT_MAX)
- continue;
ret += ipchain__fprintf_graph(fp, chain, depth,
new_depth_mask, i++,
new_total,
new_depth_mask | (1 << depth),
left_margin);
node = next;
+ if (++entries_printed == callchain_param.print_limit)
+ break;
}
if (callchain_param.mode == CHAIN_GRAPH_REL &&
bool printed = false;
int i = 0;
int ret = 0;
+ u32 entries_printed = 0;
list_for_each_entry(chain, &self->val, list) {
- if (chain->ip >= PERF_CONTEXT_MAX)
- continue;
-
if (!i++ && sort__first_dimension == SORT_SYM)
continue;
} else
ret += callchain__fprintf_left_margin(fp, left_margin);
- if (chain->sym)
- ret += fprintf(fp, " %s\n", chain->sym->name);
+ if (chain->ms.sym)
+ ret += fprintf(fp, " %s\n", chain->ms.sym->name);
else
ret += fprintf(fp, " %p\n", (void *)(long)chain->ip);
+
+ if (++entries_printed == callchain_param.print_limit)
+ break;
}
ret += __callchain__fprintf_graph(fp, self, total_samples, 1, 1, left_margin);
list_for_each_entry(chain, &self->val, list) {
if (chain->ip >= PERF_CONTEXT_MAX)
continue;
- if (chain->sym)
- ret += fprintf(fp, " %s\n", chain->sym->name);
+ if (chain->ms.sym)
+ ret += fprintf(fp, " %s\n", chain->ms.sym->name);
else
ret += fprintf(fp, " %p\n",
(void *)(long)chain->ip);
struct rb_node *rb_node;
struct callchain_node *chain;
size_t ret = 0;
+ u32 entries_printed = 0;
rb_node = rb_first(&self->sorted_chain);
while (rb_node) {
break;
}
ret += fprintf(fp, "\n");
+ if (++entries_printed == callchain_param.print_limit)
+ break;
rb_node = rb_next(rb_node);
}
return ret;
}
-size_t hist_entry__fprintf(struct hist_entry *self,
- struct perf_session *pair_session,
- bool show_displacement,
- long displacement, FILE *fp,
- u64 session_total)
+int hist_entry__snprintf(struct hist_entry *self, char *s, size_t size,
+ struct hists *hists, struct hists *pair_hists,
+ bool show_displacement, long displacement,
+ bool color, u64 session_total)
{
struct sort_entry *se;
- u64 count, total;
+ u64 period, total, period_sys, period_us, period_guest_sys, period_guest_us;
const char *sep = symbol_conf.field_sep;
- size_t ret;
+ int ret;
if (symbol_conf.exclude_other && !self->parent)
return 0;
- if (pair_session) {
- count = self->pair ? self->pair->count : 0;
- total = pair_session->events_stats.total;
+ if (pair_hists) {
+ period = self->pair ? self->pair->period : 0;
+ total = pair_hists->stats.total_period;
+ period_sys = self->pair ? self->pair->period_sys : 0;
+ period_us = self->pair ? self->pair->period_us : 0;
+ period_guest_sys = self->pair ? self->pair->period_guest_sys : 0;
+ period_guest_us = self->pair ? self->pair->period_guest_us : 0;
} else {
- count = self->count;
+ period = self->period;
total = session_total;
+ period_sys = self->period_sys;
+ period_us = self->period_us;
+ period_guest_sys = self->period_guest_sys;
+ period_guest_us = self->period_guest_us;
}
- if (total)
- ret = percent_color_fprintf(fp, sep ? "%.2f" : " %6.2f%%",
- (count * 100.0) / total);
- else
- ret = fprintf(fp, sep ? "%lld" : "%12lld ", count);
+ if (total) {
+ if (color)
+ ret = percent_color_snprintf(s, size,
+ sep ? "%.2f" : " %6.2f%%",
+ (period * 100.0) / total);
+ else
+ ret = snprintf(s, size, sep ? "%.2f" : " %6.2f%%",
+ (period * 100.0) / total);
+ if (symbol_conf.show_cpu_utilization) {
+ ret += percent_color_snprintf(s + ret, size - ret,
+ sep ? "%.2f" : " %6.2f%%",
+ (period_sys * 100.0) / total);
+ ret += percent_color_snprintf(s + ret, size - ret,
+ sep ? "%.2f" : " %6.2f%%",
+ (period_us * 100.0) / total);
+ if (perf_guest) {
+ ret += percent_color_snprintf(s + ret,
+ size - ret,
+ sep ? "%.2f" : " %6.2f%%",
+ (period_guest_sys * 100.0) /
+ total);
+ ret += percent_color_snprintf(s + ret,
+ size - ret,
+ sep ? "%.2f" : " %6.2f%%",
+ (period_guest_us * 100.0) /
+ total);
+ }
+ }
+ } else
+ ret = snprintf(s, size, sep ? "%lld" : "%12lld ", period);
if (symbol_conf.show_nr_samples) {
if (sep)
- ret += fprintf(fp, "%c%lld", *sep, count);
+ ret += snprintf(s + ret, size - ret, "%c%lld", *sep, period);
else
- ret += fprintf(fp, "%11lld", count);
+ ret += snprintf(s + ret, size - ret, "%11lld", period);
}
- if (pair_session) {
+ if (pair_hists) {
char bf[32];
double old_percent = 0, new_percent = 0, diff;
if (total > 0)
- old_percent = (count * 100.0) / total;
+ old_percent = (period * 100.0) / total;
if (session_total > 0)
- new_percent = (self->count * 100.0) / session_total;
+ new_percent = (self->period * 100.0) / session_total;
diff = new_percent - old_percent;
snprintf(bf, sizeof(bf), " ");
if (sep)
- ret += fprintf(fp, "%c%s", *sep, bf);
+ ret += snprintf(s + ret, size - ret, "%c%s", *sep, bf);
else
- ret += fprintf(fp, "%11.11s", bf);
+ ret += snprintf(s + ret, size - ret, "%11.11s", bf);
if (show_displacement) {
if (displacement)
snprintf(bf, sizeof(bf), " ");
if (sep)
- ret += fprintf(fp, "%c%s", *sep, bf);
+ ret += snprintf(s + ret, size - ret, "%c%s", *sep, bf);
else
- ret += fprintf(fp, "%6.6s", bf);
+ ret += snprintf(s + ret, size - ret, "%6.6s", bf);
}
}
if (se->elide)
continue;
- ret += fprintf(fp, "%s", sep ?: " ");
- ret += se->print(fp, self, se->width ? *se->width : 0);
+ ret += snprintf(s + ret, size - ret, "%s", sep ?: " ");
+ ret += se->se_snprintf(self, s + ret, size - ret,
+ hists__col_len(hists, se->se_width_idx));
}
- return ret + fprintf(fp, "\n");
+ return ret;
}
-static size_t hist_entry__fprintf_callchain(struct hist_entry *self, FILE *fp,
+int hist_entry__fprintf(struct hist_entry *self, struct hists *hists,
+ struct hists *pair_hists, bool show_displacement,
+ long displacement, FILE *fp, u64 session_total)
+{
+ char bf[512];
+ hist_entry__snprintf(self, bf, sizeof(bf), hists, pair_hists,
+ show_displacement, displacement,
+ true, session_total);
+ return fprintf(fp, "%s\n", bf);
+}
+
+static size_t hist_entry__fprintf_callchain(struct hist_entry *self,
+ struct hists *hists, FILE *fp,
u64 session_total)
{
int left_margin = 0;
if (sort__first_dimension == SORT_COMM) {
struct sort_entry *se = list_first_entry(&hist_entry__sort_list,
typeof(*se), list);
- left_margin = se->width ? *se->width : 0;
+ left_margin = hists__col_len(hists, se->se_width_idx);
left_margin -= thread__comm_len(self->thread);
}
left_margin);
}
-size_t perf_session__fprintf_hists(struct rb_root *hists,
- struct perf_session *pair,
- bool show_displacement, FILE *fp,
- u64 session_total)
+size_t hists__fprintf(struct hists *self, struct hists *pair,
+ bool show_displacement, FILE *fp)
{
struct sort_entry *se;
struct rb_node *nd;
long displacement = 0;
unsigned int width;
const char *sep = symbol_conf.field_sep;
- char *col_width = symbol_conf.col_width_list_str;
+ const char *col_width = symbol_conf.col_width_list_str;
init_rem_hits();
fputs(" Samples ", fp);
}
+ if (symbol_conf.show_cpu_utilization) {
+ if (sep) {
+ ret += fprintf(fp, "%csys", *sep);
+ ret += fprintf(fp, "%cus", *sep);
+ if (perf_guest) {
+ ret += fprintf(fp, "%cguest sys", *sep);
+ ret += fprintf(fp, "%cguest us", *sep);
+ }
+ } else {
+ ret += fprintf(fp, " sys ");
+ ret += fprintf(fp, " us ");
+ if (perf_guest) {
+ ret += fprintf(fp, " guest sys ");
+ ret += fprintf(fp, " guest us ");
+ }
+ }
+ }
+
if (pair) {
if (sep)
ret += fprintf(fp, "%cDelta", *sep);
if (se->elide)
continue;
if (sep) {
- fprintf(fp, "%c%s", *sep, se->header);
+ fprintf(fp, "%c%s", *sep, se->se_header);
continue;
}
- width = strlen(se->header);
- if (se->width) {
- if (symbol_conf.col_width_list_str) {
- if (col_width) {
- *se->width = atoi(col_width);
- col_width = strchr(col_width, ',');
- if (col_width)
- ++col_width;
- }
+ width = strlen(se->se_header);
+ if (symbol_conf.col_width_list_str) {
+ if (col_width) {
+ hists__set_col_len(self, se->se_width_idx,
+ atoi(col_width));
+ col_width = strchr(col_width, ',');
+ if (col_width)
+ ++col_width;
}
- width = *se->width = max(*se->width, width);
}
- fprintf(fp, " %*s", width, se->header);
+ if (!hists__new_col_len(self, se->se_width_idx, width))
+ width = hists__col_len(self, se->se_width_idx);
+ fprintf(fp, " %*s", width, se->se_header);
}
fprintf(fp, "\n");
continue;
fprintf(fp, " ");
- if (se->width)
- width = *se->width;
- else
- width = strlen(se->header);
+ width = hists__col_len(self, se->se_width_idx);
+ if (width == 0)
+ width = strlen(se->se_header);
for (i = 0; i < width; i++)
fprintf(fp, ".");
}
fprintf(fp, "\n#\n");
print_entries:
- for (nd = rb_first(hists); nd; nd = rb_next(nd)) {
+ for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) {
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
if (show_displacement) {
displacement = 0;
++position;
}
- ret += hist_entry__fprintf(h, pair, show_displacement,
- displacement, fp, session_total);
+ ret += hist_entry__fprintf(h, self, pair, show_displacement,
+ displacement, fp, self->stats.total_period);
if (symbol_conf.use_callchain)
- ret += hist_entry__fprintf_callchain(h, fp, session_total);
-
- if (h->map == NULL && verbose > 1) {
+ ret += hist_entry__fprintf_callchain(h, self, fp,
+ self->stats.total_period);
+ if (h->ms.map == NULL && verbose > 1) {
__map_groups__fprintf_maps(&h->thread->mg,
- MAP__FUNCTION, fp);
+ MAP__FUNCTION, verbose, fp);
fprintf(fp, "%.10s end\n", graph_dotted_line);
}
}
return ret;
}
+
+/*
+ * See hists__fprintf to match the column widths
+ */
+unsigned int hists__sort_list_width(struct hists *self)
+{
+ struct sort_entry *se;
+ int ret = 9; /* total % */
+
+ if (symbol_conf.show_cpu_utilization) {
+ ret += 7; /* count_sys % */
+ ret += 6; /* count_us % */
+ if (perf_guest) {
+ ret += 13; /* count_guest_sys % */
+ ret += 12; /* count_guest_us % */
+ }
+ }
+
+ if (symbol_conf.show_nr_samples)
+ ret += 11;
+
+ list_for_each_entry(se, &hist_entry__sort_list, list)
+ if (!se->elide)
+ ret += 2 + hists__col_len(self, se->se_width_idx);
+
+ if (verbose) /* Addr + origin */
+ ret += 3 + BITS_PER_LONG / 4;
+
+ return ret;
+}
+
+static void hists__remove_entry_filter(struct hists *self, struct hist_entry *h,
+ enum hist_filter filter)
+{
+ h->filtered &= ~(1 << filter);
+ if (h->filtered)
+ return;
+
+ ++self->nr_entries;
+ if (h->ms.unfolded)
+ self->nr_entries += h->nr_rows;
+ h->row_offset = 0;
+ self->stats.total_period += h->period;
+ self->stats.nr_events[PERF_RECORD_SAMPLE] += h->nr_events;
+
+ hists__calc_col_len(self, h);
+}
+
+void hists__filter_by_dso(struct hists *self, const struct dso *dso)
+{
+ struct rb_node *nd;
+
+ self->nr_entries = self->stats.total_period = 0;
+ self->stats.nr_events[PERF_RECORD_SAMPLE] = 0;
+ hists__reset_col_len(self);
+
+ for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) {
+ struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
+
+ if (symbol_conf.exclude_other && !h->parent)
+ continue;
+
+ if (dso != NULL && (h->ms.map == NULL || h->ms.map->dso != dso)) {
+ h->filtered |= (1 << HIST_FILTER__DSO);
+ continue;
+ }
+
+ hists__remove_entry_filter(self, h, HIST_FILTER__DSO);
+ }
+}
+
+void hists__filter_by_thread(struct hists *self, const struct thread *thread)
+{
+ struct rb_node *nd;
+
+ self->nr_entries = self->stats.total_period = 0;
+ self->stats.nr_events[PERF_RECORD_SAMPLE] = 0;
+ hists__reset_col_len(self);
+
+ for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) {
+ struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
+
+ if (thread != NULL && h->thread != thread) {
+ h->filtered |= (1 << HIST_FILTER__THREAD);
+ continue;
+ }
+
+ hists__remove_entry_filter(self, h, HIST_FILTER__THREAD);
+ }
+}
+
+static int symbol__alloc_hist(struct symbol *self)
+{
+ struct sym_priv *priv = symbol__priv(self);
+ const int size = (sizeof(*priv->hist) +
+ (self->end - self->start) * sizeof(u64));
+
+ priv->hist = zalloc(size);
+ return priv->hist == NULL ? -1 : 0;
+}
+
+int hist_entry__inc_addr_samples(struct hist_entry *self, u64 ip)
+{
+ unsigned int sym_size, offset;
+ struct symbol *sym = self->ms.sym;
+ struct sym_priv *priv;
+ struct sym_hist *h;
+
+ if (!sym || !self->ms.map)
+ return 0;
+
+ priv = symbol__priv(sym);
+ if (priv->hist == NULL && symbol__alloc_hist(sym) < 0)
+ return -ENOMEM;
+
+ sym_size = sym->end - sym->start;
+ offset = ip - sym->start;
+
+ pr_debug3("%s: ip=%#Lx\n", __func__, self->ms.map->unmap_ip(self->ms.map, ip));
+
+ if (offset >= sym_size)
+ return 0;
+
+ h = priv->hist;
+ h->sum++;
+ h->ip[offset]++;
+
+ pr_debug3("%#Lx %s: period++ [ip: %#Lx, %#Lx] => %Ld\n", self->ms.sym->start,
+ self->ms.sym->name, ip, ip - self->ms.sym->start, h->ip[offset]);
+ return 0;
+}
+
+static struct objdump_line *objdump_line__new(s64 offset, char *line, size_t privsize)
+{
+ struct objdump_line *self = malloc(sizeof(*self) + privsize);
+
+ if (self != NULL) {
+ self->offset = offset;
+ self->line = line;
+ }
+
+ return self;
+}
+
+void objdump_line__free(struct objdump_line *self)
+{
+ free(self->line);
+ free(self);
+}
+
+static void objdump__add_line(struct list_head *head, struct objdump_line *line)
+{
+ list_add_tail(&line->node, head);
+}
+
+struct objdump_line *objdump__get_next_ip_line(struct list_head *head,
+ struct objdump_line *pos)
+{
+ list_for_each_entry_continue(pos, head, node)
+ if (pos->offset >= 0)
+ return pos;
+
+ return NULL;
+}
+
+static int hist_entry__parse_objdump_line(struct hist_entry *self, FILE *file,
+ struct list_head *head, size_t privsize)
+{
+ struct symbol *sym = self->ms.sym;
+ struct objdump_line *objdump_line;
+ char *line = NULL, *tmp, *tmp2, *c;
+ size_t line_len;
+ s64 line_ip, offset = -1;
+
+ if (getline(&line, &line_len, file) < 0)
+ return -1;
+
+ if (!line)
+ return -1;
+
+ while (line_len != 0 && isspace(line[line_len - 1]))
+ line[--line_len] = '\0';
+
+ c = strchr(line, '\n');
+ if (c)
+ *c = 0;
+
+ line_ip = -1;
+
+ /*
+ * Strip leading spaces:
+ */
+ tmp = line;
+ while (*tmp) {
+ if (*tmp != ' ')
+ break;
+ tmp++;
+ }
+
+ if (*tmp) {
+ /*
+ * Parse hexa addresses followed by ':'
+ */
+ line_ip = strtoull(tmp, &tmp2, 16);
+ if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
+ line_ip = -1;
+ }
+
+ if (line_ip != -1) {
+ u64 start = map__rip_2objdump(self->ms.map, sym->start),
+ end = map__rip_2objdump(self->ms.map, sym->end);
+
+ offset = line_ip - start;
+ if (offset < 0 || (u64)line_ip > end)
+ offset = -1;
+ }
+
+ objdump_line = objdump_line__new(offset, line, privsize);
+ if (objdump_line == NULL) {
+ free(line);
+ return -1;
+ }
+ objdump__add_line(head, objdump_line);
+
+ return 0;
+}
+
+int hist_entry__annotate(struct hist_entry *self, struct list_head *head,
+ size_t privsize)
+{
+ struct symbol *sym = self->ms.sym;
+ struct map *map = self->ms.map;
+ struct dso *dso = map->dso;
+ char *filename = dso__build_id_filename(dso, NULL, 0);
+ bool free_filename = true;
+ char command[PATH_MAX * 2];
+ FILE *file;
+ int err = 0;
+ u64 len;
+
+ if (filename == NULL) {
+ if (dso->has_build_id) {
+ pr_err("Can't annotate %s: not enough memory\n",
+ sym->name);
+ return -ENOMEM;
+ }
+ goto fallback;
+ } else if (readlink(filename, command, sizeof(command)) < 0 ||
+ strstr(command, "[kernel.kallsyms]") ||
+ access(filename, R_OK)) {
+ free(filename);
+fallback:
+ /*
+ * If we don't have build-ids or the build-id file isn't in the
+ * cache, or is just a kallsyms file, well, lets hope that this
+ * DSO is the same as when 'perf record' ran.
+ */
+ filename = dso->long_name;
+ free_filename = false;
+ }
+
+ if (dso->origin == DSO__ORIG_KERNEL) {
+ if (dso->annotate_warned)
+ goto out_free_filename;
+ err = -ENOENT;
+ dso->annotate_warned = 1;
+ pr_err("Can't annotate %s: No vmlinux file was found in the "
+ "path\n", sym->name);
+ goto out_free_filename;
+ }
+
+ pr_debug("%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));
+
+ len = sym->end - sym->start;
+
+ pr_debug("annotating [%p] %30s : [%p] %30s\n",
+ dso, dso->long_name, sym, sym->name);
+
+ snprintf(command, sizeof(command),
+ "objdump --start-address=0x%016Lx --stop-address=0x%016Lx -dS -C %s|grep -v %s|expand",
+ map__rip_2objdump(map, sym->start),
+ map__rip_2objdump(map, sym->end),
+ filename, filename);
+
+ pr_debug("Executing: %s\n", command);
+
+ file = popen(command, "r");
+ if (!file)
+ goto out_free_filename;
+
+ while (!feof(file))
+ if (hist_entry__parse_objdump_line(self, file, head, privsize) < 0)
+ break;
+
+ pclose(file);
+out_free_filename:
+ if (free_filename)
+ free(filename);
+ return err;
+}
+
+void hists__inc_nr_events(struct hists *self, u32 type)
+{
+ ++self->stats.nr_events[0];
+ ++self->stats.nr_events[type];
+}
+
+size_t hists__fprintf_nr_events(struct hists *self, FILE *fp)
+{
+ int i;
+ size_t ret = 0;
+
+ for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) {
+ if (!event__name[i])
+ continue;
+ ret += fprintf(fp, "%10s events: %10d\n",
+ event__name[i], self->stats.nr_events[i]);
+ }
+
+ return ret;
+}
Code Review / linux-2.6.git / blobdiff