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-rw-r--r--tools/perf/builtin-annotate.c9
-rw-r--r--tools/perf/builtin-diff.c14
-rw-r--r--tools/perf/builtin-report.c48
-rw-r--r--tools/perf/util/callchain.c7
-rw-r--r--tools/perf/util/callchain.h4
-rw-r--r--tools/perf/util/event.c27
-rw-r--r--tools/perf/util/hist.c46
-rw-r--r--tools/perf/util/hist.h5
-rw-r--r--tools/perf/util/map.c24
-rw-r--r--tools/perf/util/session.c8
-rw-r--r--tools/perf/util/session.h14
-rw-r--r--tools/perf/util/symbol.c2
-rw-r--r--tools/perf/util/symbol.h2
13 files changed, 109 insertions, 101 deletions
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index ee154b58772..c7ac45a59ed 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -72,8 +72,6 @@ static int annotate__hist_hit(struct hist_entry *he, u64 ip)
struct sym_priv *priv;
struct sym_hist *h;
- he->count++;
-
if (!sym || !he->ms.map)
return 0;
@@ -99,9 +97,8 @@ static int annotate__hist_hit(struct hist_entry *he, u64 ip)
}
static int perf_session__add_hist_entry(struct perf_session *self,
- struct addr_location *al, u64 count)
+ struct addr_location *al)
{
- bool hit;
struct hist_entry *he;
if (sym_hist_filter != NULL &&
@@ -115,7 +112,7 @@ static int perf_session__add_hist_entry(struct perf_session *self,
return 0;
}
- he = __perf_session__add_hist_entry(&self->hists, al, NULL, count, &hit);
+ he = __perf_session__add_hist_entry(&self->hists, al, NULL, 1);
if (he == NULL)
return -ENOMEM;
@@ -135,7 +132,7 @@ static int process_sample_event(event_t *event, struct perf_session *session)
return -1;
}
- if (!al.filtered && perf_session__add_hist_entry(session, &al, 1)) {
+ if (!al.filtered && perf_session__add_hist_entry(session, &al)) {
pr_warning("problem incrementing symbol count, "
"skipping event\n");
return -1;
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 4cce68f2368..613a5c4f6d8 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -25,17 +25,9 @@ static bool show_displacement;
static int perf_session__add_hist_entry(struct perf_session *self,
struct addr_location *al, u64 count)
{
- bool hit;
- struct hist_entry *he = __perf_session__add_hist_entry(&self->hists,
- al, NULL,
- count, &hit);
- if (he == NULL)
- return -ENOMEM;
-
- if (hit)
- __perf_session__add_count(he, al, count);
-
- return 0;
+ if (__perf_session__add_hist_entry(&self->hists, al, NULL, count) != NULL)
+ return 0;
+ return -ENOMEM;
}
static int diff__process_sample_event(event_t *event, struct perf_session *session)
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 196473b5125..642a6d8eb5d 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -82,8 +82,7 @@ static int perf_session__add_hist_entry(struct perf_session *self,
{
struct map_symbol *syms = NULL;
struct symbol *parent = NULL;
- bool hit;
- int err;
+ int err = -ENOMEM;
struct hist_entry *he;
struct event_stat_id *stats;
struct perf_event_attr *attr;
@@ -101,39 +100,17 @@ static int perf_session__add_hist_entry(struct perf_session *self,
else
stats = get_stats(self, data->id, 0, 0);
if (stats == NULL)
- return -ENOMEM;
+ goto out_free_syms;
he = __perf_session__add_hist_entry(&stats->hists, al, parent,
- data->period, &hit);
+ data->period);
if (he == NULL)
- return -ENOMEM;
-
- if (hit)
- __perf_session__add_count(he, al, data->period);
-
- if (symbol_conf.use_callchain) {
- if (!hit)
- callchain_init(he->callchain);
+ goto out_free_syms;
+ err = 0;
+ if (symbol_conf.use_callchain)
err = append_chain(he->callchain, data->callchain, syms);
- free(syms);
-
- if (err)
- return err;
- }
-
- return 0;
-}
-
-static int validate_chain(struct ip_callchain *chain, event_t *event)
-{
- unsigned int chain_size;
-
- chain_size = event->header.size;
- chain_size -= (unsigned long)&event->ip.__more_data - (unsigned long)event;
-
- if (chain->nr*sizeof(u64) > chain_size)
- return -1;
-
- return 0;
+out_free_syms:
+ free(syms);
+ return err;
}
static int add_event_total(struct perf_session *session,
@@ -171,7 +148,7 @@ static int process_sample_event(event_t *event, struct perf_session *session)
dump_printf("... chain: nr:%Lu\n", data.callchain->nr);
- if (validate_chain(data.callchain, event) < 0) {
+ if (!ip_callchain__valid(data.callchain, event)) {
pr_debug("call-chain problem with event, "
"skipping it.\n");
return 0;
@@ -366,7 +343,7 @@ static int
parse_callchain_opt(const struct option *opt __used, const char *arg,
int unset)
{
- char *tok;
+ char *tok, *tok2;
char *endptr;
/*
@@ -411,10 +388,13 @@ parse_callchain_opt(const struct option *opt __used, const char *arg,
if (!tok)
goto setup;
+ tok2 = strtok(NULL, ",");
callchain_param.min_percent = strtod(tok, &endptr);
if (tok == endptr)
return -1;
+ if (tok2)
+ callchain_param.print_limit = strtod(tok2, &endptr);
setup:
if (register_callchain_param(&callchain_param) < 0) {
fprintf(stderr, "Can't register callchain params\n");
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index db628af6d20..ac148613afe 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -17,6 +17,13 @@
#include "callchain.h"
+bool ip_callchain__valid(struct ip_callchain *chain, event_t *event)
+{
+ unsigned int chain_size = event->header.size;
+ chain_size -= (unsigned long)&event->ip.__more_data - (unsigned long)event;
+ return chain->nr * sizeof(u64) <= chain_size;
+}
+
#define chain_for_each_child(child, parent) \
list_for_each_entry(child, &parent->children, brothers)
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 8a7e8bbd0fd..1cba1f5504e 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -4,6 +4,7 @@
#include "../perf.h"
#include <linux/list.h>
#include <linux/rbtree.h>
+#include "event.h"
#include "util.h"
#include "symbol.h"
@@ -33,6 +34,7 @@ typedef void (*sort_chain_func_t)(struct rb_root *, struct callchain_node *,
struct callchain_param {
enum chain_mode mode;
+ u32 print_limit;
double min_percent;
sort_chain_func_t sort;
};
@@ -58,4 +60,6 @@ static inline u64 cumul_hits(struct callchain_node *node)
int register_callchain_param(struct callchain_param *param);
int append_chain(struct callchain_node *root, struct ip_callchain *chain,
struct map_symbol *syms);
+
+bool ip_callchain__valid(struct ip_callchain *chain, event_t *event);
#endif /* __PERF_CALLCHAIN_H */
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 23d5dfd4ed7..d2ea9dd9fdf 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -493,8 +493,10 @@ int event__process_mmap(event_t *self, struct perf_session *session)
return 0;
}
- thread = perf_session__findnew(session, self->mmap.pid);
machine = perf_session__find_host_machine(session);
+ if (machine == NULL)
+ goto out_problem;
+ thread = perf_session__findnew(session, self->mmap.pid);
map = map__new(&machine->user_dsos, self->mmap.start,
self->mmap.len, self->mmap.pgoff,
self->mmap.pid, self->mmap.filename,
@@ -552,6 +554,10 @@ void thread__find_addr_map(struct thread *self,
if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) {
al->level = 'k';
machine = perf_session__find_host_machine(session);
+ if (machine == NULL) {
+ al->map = NULL;
+ return;
+ }
mg = &machine->kmaps;
} else if (cpumode == PERF_RECORD_MISC_USER && perf_host) {
al->level = '.';
@@ -559,7 +565,7 @@ void thread__find_addr_map(struct thread *self,
} else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) {
al->level = 'g';
machine = perf_session__find_machine(session, pid);
- if (!machine) {
+ if (machine == NULL) {
al->map = NULL;
return;
}
@@ -650,6 +656,16 @@ int event__preprocess_sample(const event_t *self, struct perf_session *session,
goto out_filtered;
dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
+ /*
+ * Have we already created the kernel maps for the host machine?
+ *
+ * This should have happened earlier, when we processed the kernel MMAP
+ * events, but for older perf.data files there was no such thing, so do
+ * it now.
+ */
+ if (cpumode == PERF_RECORD_MISC_KERNEL &&
+ session->host_machine.vmlinux_maps[MAP__FUNCTION] == NULL)
+ machine__create_kernel_maps(&session->host_machine);
thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION,
self->ip.pid, self->ip.ip, al);
@@ -676,6 +692,13 @@ int event__preprocess_sample(const event_t *self, struct perf_session *session,
dso__calc_col_width(al->map->dso);
al->sym = map__find_symbol(al->map, al->addr, filter);
+ } else {
+ const unsigned int unresolved_col_width = BITS_PER_LONG / 4;
+
+ if (dsos__col_width < unresolved_col_width &&
+ !symbol_conf.col_width_list_str && !symbol_conf.field_sep &&
+ !symbol_conf.dso_list)
+ dsos__col_width = unresolved_col_width;
}
if (symbol_conf.sym_list && al->sym &&
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index ad6b22dde27..0f154a530df 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -8,13 +8,10 @@ struct callchain_param callchain_param = {
.min_percent = 0.5
};
-void __perf_session__add_count(struct hist_entry *he,
- struct addr_location *al,
- u64 count)
+static void perf_session__add_cpumode_count(struct hist_entry *he,
+ unsigned int cpumode, u64 count)
{
- he->count += count;
-
- switch (al->cpumode) {
+ switch (cpumode) {
case PERF_RECORD_MISC_KERNEL:
he->count_sys += count;
break;
@@ -36,10 +33,24 @@ void __perf_session__add_count(struct hist_entry *he,
* histogram, sorted on item, collects counts
*/
+static struct hist_entry *hist_entry__new(struct hist_entry *template)
+{
+ size_t callchain_size = symbol_conf.use_callchain ? sizeof(struct callchain_node) : 0;
+ struct hist_entry *self = malloc(sizeof(*self) + callchain_size);
+
+ if (self != NULL) {
+ *self = *template;
+ if (symbol_conf.use_callchain)
+ callchain_init(self->callchain);
+ }
+
+ return self;
+}
+
struct hist_entry *__perf_session__add_hist_entry(struct rb_root *hists,
struct addr_location *al,
struct symbol *sym_parent,
- u64 count, bool *hit)
+ u64 count)
{
struct rb_node **p = &hists->rb_node;
struct rb_node *parent = NULL;
@@ -64,8 +75,8 @@ struct hist_entry *__perf_session__add_hist_entry(struct rb_root *hists,
cmp = hist_entry__cmp(&entry, he);
if (!cmp) {
- *hit = true;
- return he;
+ he->count += count;
+ goto out;
}
if (cmp < 0)
@@ -74,14 +85,13 @@ struct hist_entry *__perf_session__add_hist_entry(struct rb_root *hists,
p = &(*p)->rb_right;
}
- he = malloc(sizeof(*he) + (symbol_conf.use_callchain ?
- sizeof(struct callchain_node) : 0));
+ 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;
+out:
+ perf_session__add_cpumode_count(he, al->cpumode, count);
return he;
}
@@ -323,6 +333,7 @@ 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;
@@ -369,6 +380,8 @@ static size_t __callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
new_depth_mask | (1 << depth),
left_margin);
node = next;
+ if (++entries_printed == callchain_param.print_limit)
+ break;
}
if (callchain_param.mode == CHAIN_GRAPH_REL &&
@@ -394,6 +407,7 @@ static size_t callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
bool printed = false;
int i = 0;
int ret = 0;
+ u32 entries_printed = 0;
list_for_each_entry(chain, &self->val, list) {
if (!i++ && sort__first_dimension == SORT_SYM)
@@ -414,6 +428,9 @@ static size_t callchain__fprintf_graph(FILE *fp, struct callchain_node *self,
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);
@@ -452,6 +469,7 @@ static size_t hist_entry_callchain__fprintf(FILE *fp, struct hist_entry *self,
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) {
@@ -474,6 +492,8 @@ static size_t hist_entry_callchain__fprintf(FILE *fp, struct hist_entry *self,
break;
}
ret += fprintf(fp, "\n");
+ if (++entries_printed == callchain_param.print_limit)
+ break;
rb_node = rb_next(rb_node);
}
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 9df1c340ec9..b49013adb34 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -12,13 +12,10 @@ struct addr_location;
struct symbol;
struct rb_root;
-void __perf_session__add_count(struct hist_entry *he,
- struct addr_location *al,
- u64 count);
struct hist_entry *__perf_session__add_hist_entry(struct rb_root *hists,
struct addr_location *al,
struct symbol *parent,
- u64 count, bool *hit);
+ u64 count);
extern int64_t hist_entry__cmp(struct hist_entry *, struct hist_entry *);
extern int64_t hist_entry__collapse(struct hist_entry *, struct hist_entry *);
int hist_entry__fprintf(struct hist_entry *self,
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 44a4df68b3c..e672f2fef65 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -579,30 +579,6 @@ struct machine *machines__find(struct rb_root *self, pid_t pid)
return default_machine;
}
-/*
- * FIXME: Why repeatedly search for this?
- */
-struct machine *machines__find_host(struct rb_root *self)
-{
- struct rb_node **p = &self->rb_node;
- struct rb_node *parent = NULL;
- struct machine *machine;
- pid_t pid = HOST_KERNEL_ID;
-
- while (*p != NULL) {
- parent = *p;
- machine = rb_entry(parent, struct machine, rb_node);
- if (pid < machine->pid)
- p = &(*p)->rb_left;
- else if (pid > machine->pid)
- p = &(*p)->rb_right;
- else
- return machine;
- }
-
- return NULL;
-}
-
struct machine *machines__findnew(struct rb_root *self, pid_t pid)
{
char path[PATH_MAX];
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 00ab298bbb4..c088d8f9b51 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -99,6 +99,7 @@ struct perf_session *perf_session__new(const char *filename, int mode, bool forc
self->machines = RB_ROOT;
self->repipe = repipe;
INIT_LIST_HEAD(&self->ordered_samples.samples_head);
+ machine__init(&self->host_machine, "", HOST_KERNEL_ID);
if (mode == O_RDONLY) {
if (perf_session__open(self, force) < 0)
@@ -919,3 +920,10 @@ int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
return 0;
}
+
+size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp)
+{
+ return __dsos__fprintf(&self->host_machine.kernel_dsos, fp) +
+ __dsos__fprintf(&self->host_machine.user_dsos, fp) +
+ machines__fprintf_dsos(&self->machines, fp);
+}
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 568fd08a478..242d528bfae 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -26,6 +26,7 @@ struct perf_session {
unsigned long mmap_window;
struct rb_root threads;
struct thread *last_match;
+ struct machine host_machine;
struct rb_root machines;
struct events_stats events_stats;
struct rb_root stats_by_id;
@@ -113,18 +114,22 @@ int perf_session__browse_hists(struct rb_root *hists, u64 nr_hists,
static inline
struct machine *perf_session__find_host_machine(struct perf_session *self)
{
- return machines__find_host(&self->machines);
+ return &self->host_machine;
}
static inline
struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
{
+ if (pid == HOST_KERNEL_ID)
+ return &self->host_machine;
return machines__find(&self->machines, pid);
}
static inline
struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
{
+ if (pid == HOST_KERNEL_ID)
+ return &self->host_machine;
return machines__findnew(&self->machines, pid);
}
@@ -132,14 +137,11 @@ static inline
void perf_session__process_machines(struct perf_session *self,
machine__process_t process)
{
+ process(&self->host_machine, self);
return machines__process(&self->machines, process, self);
}
-static inline
-size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp)
-{
- return machines__fprintf_dsos(&self->machines, fp);
-}
+size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
static inline
size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp,
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 4c0146a4906..994efdb531e 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1889,7 +1889,7 @@ struct dso *__dsos__findnew(struct list_head *head, const char *name)
return dso;
}
-static size_t __dsos__fprintf(struct list_head *head, FILE *fp)
+size_t __dsos__fprintf(struct list_head *head, FILE *fp)
{
struct dso *pos;
size_t ret = 0;
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index a517c17407b..edff866d76b 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -167,6 +167,8 @@ int machine__load_kallsyms(struct machine *self, const char *filename,
int machine__load_vmlinux_path(struct machine *self, enum map_type type,
symbol_filter_t filter);
+size_t __dsos__fprintf(struct list_head *head, FILE *fp);
+
size_t machines__fprintf_dsos(struct rb_root *self, FILE *fp);
size_t machines__fprintf_dsos_buildid(struct rb_root *self, FILE *fp, bool with_hits);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-13 11:21:40 +0000