perf annotate: Use the sym_priv_size area for the histogram

We have this sym_priv_size mechanism for attaching private areas
to struct symbol entries but annotate wasn't using it, adding
private areas to struct symbol in addition to a ->priv pointer.

Scrap all that and use the sym_priv_size mechanism.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <1256055940-19511-1-git-send-email-acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

5 files changed, 52 insertions, 52 deletions

diff --git a/tools/perf/util/data_map.c b/tools/perf/util/data_map.c
index 242b0555ab91..18accb8fee4d 100644
--- a/tools/perf/util/data_map.c
+++ b/tools/perf/util/data_map.c
@@ -130,7 +130,7 @@ int mmap_dispatch_perf_file(struct perf_header **pheader,
 		if (curr_handler->sample_type_check(sample_type) < 0)
 			exit(-1);
 
-	if (load_kernel() < 0) {
+	if (load_kernel(0, NULL) < 0) {
 		perror("failed to load kernel symbols");
 		return EXIT_FAILURE;
 	}
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 6b5be56a8271..db59c8bbe49a 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -101,7 +101,13 @@ static inline u64 identity__map_ip(struct map *map __used, u64 ip)
 	return ip;
 }
 
-struct map *map__new(struct mmap_event *event, char *cwd, int cwdlen);
+struct symbol;
+
+typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
+
+struct map *map__new(struct mmap_event *event, char *cwd, int cwdlen,
+		     unsigned int sym_priv_size, symbol_filter_t filter,
+		     int v);
 struct map *map__clone(struct map *self);
 int map__overlap(struct map *l, struct map *r);
 size_t map__fprintf(struct map *self, FILE *fp);
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 4e203d144f9e..55079c0200e0 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -3,6 +3,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
+#include "debug.h"
 
 static inline int is_anon_memory(const char *filename)
 {
@@ -19,7 +20,9 @@ static int strcommon(const char *pathname, char *cwd, int cwdlen)
 	return n;
 }
 
- struct map *map__new(struct mmap_event *event, char *cwd, int cwdlen)
+struct map *map__new(struct mmap_event *event, char *cwd, int cwdlen,
+		     unsigned int sym_priv_size, symbol_filter_t filter,
+		     int v)
 {
 	struct map *self = malloc(sizeof(*self));
 
@@ -27,6 +30,7 @@ static int strcommon(const char *pathname, char *cwd, int cwdlen)
 		const char *filename = event->filename;
 		char newfilename[PATH_MAX];
 		int anon;
+		bool new_dso;
 
 		if (cwd) {
 			int n = strcommon(filename, cwd, cwdlen);
@@ -49,10 +53,23 @@ static int strcommon(const char *pathname, char *cwd, int cwdlen)
 		self->end   = event->start + event->len;
 		self->pgoff = event->pgoff;
 
-		self->dso = dsos__findnew(filename);
+		self->dso = dsos__findnew(filename, sym_priv_size, &new_dso);
 		if (self->dso == NULL)
 			goto out_delete;
 
+		if (new_dso) {
+			int nr = dso__load(self->dso, self, filter, v);
+
+			if (nr < 0)
+				eprintf("Failed to open %s, continuing "
+					"without symbols\n",
+					self->dso->long_name);
+			else if (nr == 0)
+				eprintf("No symbols found in %s, maybe "
+					"install a debug package?\n",
+					self->dso->long_name);
+		}
+
 		if (self->dso == vdso || anon)
 			self->map_ip = self->unmap_ip = identity__map_ip;
 		else {
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 3350119f6909..0a4898480d6d 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -11,8 +11,6 @@
 #include <elf.h>
 #include <sys/utsname.h>
 
-const char *sym_hist_filter;
-
 enum dso_origin {
 	DSO__ORIG_KERNEL = 0,
 	DSO__ORIG_JAVA_JIT,
@@ -86,22 +84,16 @@ static struct symbol *symbol__new(u64 start, u64 len, const char *name,
 	if (!self)
 		return NULL;
 
-	if (v > 2)
-		printf("new symbol: %016Lx [%08lx]: %s, hist: %p\n",
-			start, (unsigned long)len, name, self->hist);
-
-	self->hist = NULL;
-	self->hist_sum = 0;
-
-	if (sym_hist_filter && !strcmp(name, sym_hist_filter))
-		self->hist = calloc(sizeof(u64), len);
-
 	if (priv_size) {
 		memset(self, 0, priv_size);
 		self = ((void *)self) + priv_size;
 	}
 	self->start = start;
 	self->end   = len ? start + len - 1 : start;
+
+	if (v > 2)
+		printf("%s: %s %#Lx-%#Lx\n", __func__, name, start, self->end);
+
 	memcpy(self->name, name, namelen);
 
 	return self;
@@ -919,7 +911,8 @@ char dso__symtab_origin(const struct dso *self)
 	return origin[self->origin];
 }
 
-int dso__load(struct dso *self, struct map *map, symbol_filter_t filter, int v)
+int dso__load(struct dso *self, struct map *map,
+	      symbol_filter_t filter, int v)
 {
 	int size = PATH_MAX;
 	char *name = malloc(size), *build_id = NULL;
@@ -1335,33 +1328,21 @@ static struct dso *dsos__find(const char *name)
 	return NULL;
 }
 
-struct dso *dsos__findnew(const char *name)
+struct dso *dsos__findnew(const char *name, unsigned int sym_priv_size,
+			  bool *is_new)
 {
 	struct dso *dso = dsos__find(name);
-	int nr;
-
-	if (dso)
-		return dso;
-
-	dso = dso__new(name, 0);
-	if (!dso)
-		goto out_delete_dso;
 
-	nr = dso__load(dso, NULL, NULL, verbose);
-	if (nr < 0) {
-		eprintf("Failed to open: %s\n", name);
-		goto out_delete_dso;
-	}
-	if (!nr)
-		eprintf("No symbols found in: %s, maybe install a debug package?\n", name);
-
-	dsos__add(dso);
+	if (!dso) {
+		dso = dso__new(name, sym_priv_size);
+		if (dso) {
+			dsos__add(dso);
+			*is_new = true;
+		}
+	} else
+		*is_new = false;
 
 	return dso;
-
-out_delete_dso:
-	dso__delete(dso);
-	return NULL;
 }
 
 void dsos__fprintf(FILE *fp)
@@ -1372,9 +1353,10 @@ void dsos__fprintf(FILE *fp)
 		dso__fprintf(pos, fp);
 }
 
-int load_kernel(void)
+int load_kernel(unsigned int sym_priv_size, symbol_filter_t filter)
 {
-	if (dsos__load_kernel(vmlinux_name, 0, NULL, verbose, modules) <= 0)
+	if (dsos__load_kernel(vmlinux_name, sym_priv_size,
+			      filter, verbose, modules) <= 0)
 		return -1;
 
 	vdso = dso__new("[vdso]", 0);
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 2e4522edeb07..c2a777de9b7e 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -2,6 +2,7 @@
 #define __PERF_SYMBOL 1
 
 #include <linux/types.h>
+#include <stdbool.h>
 #include "types.h"
 #include <linux/list.h>
 #include <linux/rbtree.h>
@@ -35,9 +36,6 @@ struct symbol {
 	struct rb_node	rb_node;
 	u64		start;
 	u64		end;
-	u64		hist_sum;
-	u64		*hist;
-	void		*priv;
 	char		name[0];
 };
 
@@ -54,10 +52,6 @@ struct dso {
 	char		 name[0];
 };
 
-extern const char *sym_hist_filter;
-
-typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
-
 struct dso *dso__new(const char *name, unsigned int sym_priv_size);
 void dso__delete(struct dso *self);
 
@@ -70,15 +64,16 @@ struct symbol *dso__find_symbol(struct dso *self, u64 ip);
 
 int dsos__load_kernel(const char *vmlinux, unsigned int sym_priv_size,
 		      symbol_filter_t filter, int verbose, int modules);
-int dso__load(struct dso *self, struct map *map, symbol_filter_t filter,
-	      int verbose);
-struct dso *dsos__findnew(const char *name);
+struct dso *dsos__findnew(const char *name, unsigned int sym_priv_size,
+			  bool *is_new);
+int dso__load(struct dso *self, struct map *map,
+	      symbol_filter_t filter, int v);
 void dsos__fprintf(FILE *fp);
 
 size_t dso__fprintf(struct dso *self, FILE *fp);
 char dso__symtab_origin(const struct dso *self);
 
-int load_kernel(void);
+int load_kernel(unsigned int sym_priv_size, symbol_filter_t filter);
 
 void symbol__init(void);