perf annotate: Move annotate functions to util/

They will be used by perf top, so that we have just one set of routines
to do annotation.

Rename "struct sym_priv" to "struct annotation", etc, to clarify this
code a bit.

Rename "struct sym_ext" to "struct source_line", to give it a meaningful
name, that clarifies that it is a the result of an addr2line call, that
is sorted by percentage one particular source code line appeared in the
annotation.

And since we're moving things around also rename 'sym_hist->ip' to
'sym_hist->addr' as we want to do data structure annotation at some
point.

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>

1 files changed, 11 insertions, 244 deletions

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index cd9dec46c19f..9072ef44cfcb 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -9,6 +9,7 @@
 
 #include "util/util.h"
 
+#include "util/util.h"
 #include "util/color.h"
 #include <linux/list.h>
 #include "util/cache.h"
@@ -18,6 +19,7 @@
 #include "perf.h"
 #include "util/debug.h"
 
+#include "util/annotate.h"
 #include "util/event.h"
 #include "util/parse-options.h"
 #include "util/parse-events.h"
@@ -79,245 +81,10 @@ static int process_sample_event(union perf_event *event,
 	return 0;
 }
 
-static int objdump_line__print(struct objdump_line *self,
-			       struct list_head *head,
-			       struct hist_entry *he, u64 len)
-{
-	struct symbol *sym = he->ms.sym;
-	static const char *prev_line;
-	static const char *prev_color;
-
-	if (self->offset != -1) {
-		const char *path = NULL;
-		unsigned int hits = 0;
-		double percent = 0.0;
-		const char *color;
-		struct sym_priv *priv = symbol__priv(sym);
-		struct sym_ext *sym_ext = priv->ext;
-		struct sym_hist *h = priv->hist;
-		s64 offset = self->offset;
-		struct objdump_line *next = objdump__get_next_ip_line(head, self);
-
-		while (offset < (s64)len &&
-		       (next == NULL || offset < next->offset)) {
-			if (sym_ext) {
-				if (path == NULL)
-					path = sym_ext[offset].path;
-				percent += sym_ext[offset].percent;
-			} else
-				hits += h->ip[offset];
-
-			++offset;
-		}
-
-		if (sym_ext == NULL && h->sum)
-			percent = 100.0 * hits / h->sum;
-
-		color = get_percent_color(percent);
-
-		/*
-		 * Also color the filename and line if needed, with
-		 * the same color than the percentage. Don't print it
-		 * twice for close colored ip with the same filename:line
-		 */
-		if (path) {
-			if (!prev_line || strcmp(prev_line, path)
-				       || color != prev_color) {
-				color_fprintf(stdout, color, " %s", path);
-				prev_line = path;
-				prev_color = color;
-			}
-		}
-
-		color_fprintf(stdout, color, " %7.2f", percent);
-		printf(" :	");
-		color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", self->line);
-	} else {
-		if (!*self->line)
-			printf("         :\n");
-		else
-			printf("         :	%s\n", self->line);
-	}
-
-	return 0;
-}
-
-static struct rb_root root_sym_ext;
-
-static void insert_source_line(struct sym_ext *sym_ext)
-{
-	struct sym_ext *iter;
-	struct rb_node **p = &root_sym_ext.rb_node;
-	struct rb_node *parent = NULL;
-
-	while (*p != NULL) {
-		parent = *p;
-		iter = rb_entry(parent, struct sym_ext, node);
-
-		if (sym_ext->percent > iter->percent)
-			p = &(*p)->rb_left;
-		else
-			p = &(*p)->rb_right;
-	}
-
-	rb_link_node(&sym_ext->node, parent, p);
-	rb_insert_color(&sym_ext->node, &root_sym_ext);
-}
-
-static void free_source_line(struct hist_entry *he, int len)
-{
-	struct sym_priv *priv = symbol__priv(he->ms.sym);
-	struct sym_ext *sym_ext = priv->ext;
-	int i;
-
-	if (!sym_ext)
-		return;
-
-	for (i = 0; i < len; i++)
-		free(sym_ext[i].path);
-	free(sym_ext);
-
-	priv->ext = NULL;
-	root_sym_ext = RB_ROOT;
-}
-
-/* Get the filename:line for the colored entries */
-static void
-get_source_line(struct hist_entry *he, int len, const char *filename)
-{
-	struct symbol *sym = he->ms.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 (!h->sum)
-		return;
-
-	sym_ext = priv->ext = calloc(len, sizeof(struct sym_ext));
-	if (!priv->ext)
-		return;
-
-	start = he->ms.map->unmap_ip(he->ms.map, sym->start);
-
-	for (i = 0; i < len; i++) {
-		char *path = NULL;
-		size_t line_len;
-		u64 offset;
-		FILE *fp;
-
-		sym_ext[i].percent = 100.0 * h->ip[i] / h->sum;
-		if (sym_ext[i].percent <= 0.5)
-			continue;
-
-		offset = start + i;
-		sprintf(cmd, "addr2line -e %s %016" PRIx64, filename, offset);
-		fp = popen(cmd, "r");
-		if (!fp)
-			continue;
-
-		if (getline(&path, &line_len, fp) < 0 || !line_len)
-			goto next;
-
-		sym_ext[i].path = malloc(sizeof(char) * line_len + 1);
-		if (!sym_ext[i].path)
-			goto next;
-
-		strcpy(sym_ext[i].path, path);
-		insert_source_line(&sym_ext[i]);
-
-	next:
-		pclose(fp);
-	}
-}
-
-static void print_summary(const char *filename)
-{
-	struct sym_ext *sym_ext;
-	struct rb_node *node;
-
-	printf("\nSorted summary for file %s\n", filename);
-	printf("----------------------------------------------\n\n");
-
-	if (RB_EMPTY_ROOT(&root_sym_ext)) {
-		printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
-		return;
-	}
-
-	node = rb_first(&root_sym_ext);
-	while (node) {
-		double percent;
-		const char *color;
-		char *path;
-
-		sym_ext = rb_entry(node, struct sym_ext, node);
-		percent = sym_ext->percent;
-		color = get_percent_color(percent);
-		path = sym_ext->path;
-
-		color_fprintf(stdout, color, " %7.2f %s", percent, path);
-		node = rb_next(node);
-	}
-}
-
-static void hist_entry__print_hits(struct hist_entry *self)
-{
-	struct symbol *sym = self->ms.sym;
-	struct sym_priv *priv = symbol__priv(sym);
-	struct sym_hist *h = priv->hist;
-	u64 len = sym->end - sym->start, offset;
-
-	for (offset = 0; offset < len; ++offset)
-		if (h->ip[offset] != 0)
-			printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
-			       sym->start + offset, h->ip[offset]);
-	printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum);
-}
-
 static int hist_entry__tty_annotate(struct hist_entry *he)
 {
-	struct map *map = he->ms.map;
-	struct dso *dso = map->dso;
-	struct symbol *sym = he->ms.sym;
-	const char *filename = dso->long_name, *d_filename;
-	u64 len;
-	LIST_HEAD(head);
-	struct objdump_line *pos, *n;
-
-	if (hist_entry__annotate(he, &head, 0) < 0)
-		return -1;
-
-	if (full_paths)
-		d_filename = filename;
-	else
-		d_filename = basename(filename);
-
-	len = sym->end - sym->start;
-
-	if (print_line) {
-		get_source_line(he, len, filename);
-		print_summary(filename);
-	}
-
-	printf("\n\n------------------------------------------------\n");
-	printf(" Percent |	Source code & Disassembly of %s\n", d_filename);
-	printf("------------------------------------------------\n");
-
-	if (verbose)
-		hist_entry__print_hits(he);
-
-	list_for_each_entry_safe(pos, n, &head, node) {
-		objdump_line__print(pos, &head, he, len);
-		list_del(&pos->node);
-		objdump_line__free(pos);
-	}
-
-	if (print_line)
-		free_source_line(he, len);
-
-	return 0;
+	return symbol__tty_annotate(he->ms.sym, he->ms.map,
+				    print_line, full_paths);
 }
 
 static void hists__find_annotations(struct hists *self)
@@ -327,13 +94,13 @@ static void hists__find_annotations(struct hists *self)
 
 	while (nd) {
 		struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
-		struct sym_priv *priv;
+		struct annotation *notes;
 
 		if (he->ms.sym == NULL || he->ms.map->dso->annotate_warned)
 			goto find_next;
 
-		priv = symbol__priv(he->ms.sym);
-		if (priv->hist == NULL) {
+		notes = symbol__annotation(he->ms.sym);
+		if (notes->histogram == NULL) {
 find_next:
 			if (key == KEY_LEFT)
 				nd = rb_prev(nd);
@@ -362,11 +129,11 @@ find_next:
 			nd = rb_next(nd);
 			/*
 			 * Since we have a hist_entry per IP for the same
-			 * symbol, free he->ms.sym->hist to signal we already
+			 * symbol, free he->ms.sym->histogram to signal we already
 			 * processed this symbol.
 			 */
-			free(priv->hist);
-			priv->hist = NULL;
+			free(notes->histogram);
+			notes->histogram = NULL;
 		}
 	}
 }
@@ -454,7 +221,7 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __used)
 
 	setup_browser(true);
 
-	symbol_conf.priv_size = sizeof(struct sym_priv);
+	symbol_conf.priv_size = sizeof(struct annotation);
 	symbol_conf.try_vmlinux_path = true;
 
 	if (symbol__init() < 0)