[PATCH 5/6] perf annotate: Separate objdump parsing from actual screen rendering

Arnaldo Carvalho de Melo
2011-02-07T00:44:21Z

Because in 'perf top' we'll need to parse just once and then, as samples
come, render multiple times with evolving counter values.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/annotate.c | 62 ++++++++++++++++++++++++++++++-------------
tools/perf/util/annotate.h | 4 +++
2 files changed, 47 insertions(+), 19 deletions(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 072bc8d..10cdbad 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -421,21 +421,16 @@ static void symbol__annotate_hits(struct symbol *sym, int evidx)
printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum);
}

-int symbol__tty_annotate(struct symbol *sym, struct map *map, int evidx,
- bool print_lines, bool full_paths, int min_pcnt,
- int max_lines)
+void symbol__annotate_printf(struct symbol *sym, struct map *map,
+ struct list_head *head, int evidx, bool full_paths,
+ int min_pcnt, int max_lines)
{
struct dso *dso = map->dso;
const char *filename = dso->long_name, *d_filename;
- struct rb_root source_line = RB_ROOT;
- struct objdump_line *pos, *n;
- LIST_HEAD(head);
+ struct objdump_line *pos;
int printed = 2;
u64 len;

- if (symbol__annotate(sym, map, &head, 0) < 0)
- return -1;
-
if (full_paths)
d_filename = filename;
else
@@ -443,28 +438,57 @@ int symbol__tty_annotate(struct symbol *sym, struct map *map, int evidx,

len = sym->end - sym->start;

- if (print_lines) {
- symbol__get_source_line(sym, map, evidx, &source_line,
- len, filename);
- print_summary(&source_line, filename);
- }
-
printf(" Percent | Source code & Disassembly of %s\n", d_filename);
printf("------------------------------------------------\n");

if (verbose)
symbol__annotate_hits(sym, evidx);

- list_for_each_entry_safe(pos, n, &head, node) {
- objdump_line__print(pos, &head, sym, evidx, len, min_pcnt);
- list_del(&pos->node);
- objdump_line__free(pos);
+ list_for_each_entry(pos, head, node) {
+ objdump_line__print(pos, head, sym, evidx, len, min_pcnt);
if (max_lines && ++printed >= max_lines)
break;
+
+ }
+}
+
+void objdump_line_list__purge(struct list_head *head)
+{
+ struct objdump_line *pos, *n;
+
+ list_for_each_entry_safe(pos, n, head, node) {
+ list_del(&pos->node);
+ objdump_line__free(pos);
+ }
+}
+
+int symbol__tty_annotate(struct symbol *sym, struct map *map, int evidx,
+ bool print_lines, bool full_paths, int min_pcnt,
+ int max_lines)
+{
+ struct dso *dso = map->dso;
+ const char *filename = dso->long_name;
+ struct rb_root source_line = RB_ROOT;
+ LIST_HEAD(head);
+ u64 len;
+
+ if (symbol__annotate(sym, map, &head, 0) < 0)
+ return -1;
+
+ len = sym->end - sym->start;
+
+ if (print_lines) {
+ symbol__get_source_line(sym, map, evidx, &source_line,
+ len, filename);
+ print_summary(&source_line, filename);
}

+ symbol__annotate_printf(sym, map, &head, evidx, full_paths,
+ min_pcnt, max_lines);
if (print_lines)
symbol__free_source_line(sym, len);

+ objdump_line_list__purge(&head);
+
return 0;
}
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 6b70732..53dd92d 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -67,6 +67,10 @@ int symbol__alloc_hist(struct symbol *sym, int nevents);

int symbol__annotate(struct symbol *sym, struct map *map,
struct list_head *head, size_t privsize);
+void symbol__annotate_printf(struct symbol *sym, struct map *map,
+ struct list_head *head, int evidx, bool full_paths,
+ int min_pcnt, int max_lines);
+void objdump_line_list__purge(struct list_head *head);

int symbol__tty_annotate(struct symbol *sym, struct map *map, int evidx,
bool print_lines, bool full_paths, int min_pcnt,
--
1.6.2.5