| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Fri, 26 Mar 2010 17:38:17 -0300
From: Arnaldo Carvalho de Melo <acme@...radead.org>
To: Ingo Molnar <mingo@...e.hu>
Cc: linux-kernel@...r.kernel.org,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Frédéric Weisbecker <fweisbec@...il.com>,
Mike Galbraith <efault@....de>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Paul Mackerras <paulus@...ba.org>
Subject: [PATCH 1/3] perf symbols: Move more map_groups methods to map.c
From: Arnaldo Carvalho de Melo <acme@...hat.com>
While writing a standalone test app that uses the symbol system to
find kernel space symbols I noticed these also need to be moved.
Cc: Frédéric Weisbecker <fweisbec@...il.com>
Cc: Mike Galbraith <efault@....de>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc: Paul Mackerras <paulus@...ba.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
tools/perf/util/hist.c | 2 +-
tools/perf/util/map.c | 168 +++++++++++++++++++++++++++++++++++++++++++++
tools/perf/util/map.h | 11 +++-
tools/perf/util/thread.c | 169 +---------------------------------------------
4 files changed, 180 insertions(+), 170 deletions(-)
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 09e09e7..de31901 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -658,7 +658,7 @@ print_entries:
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);
}
}
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 9f2963f..e21f980 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -1,4 +1,5 @@
#include "symbol.h"
+#include <errno.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
@@ -234,6 +235,37 @@ u64 map__objdump_2ip(struct map *map, u64 addr)
return ip;
}
+void map_groups__init(struct map_groups *self)
+{
+ int i;
+ for (i = 0; i < MAP__NR_TYPES; ++i) {
+ self->maps[i] = RB_ROOT;
+ INIT_LIST_HEAD(&self->removed_maps[i]);
+ }
+}
+
+void map_groups__flush(struct map_groups *self)
+{
+ int type;
+
+ for (type = 0; type < MAP__NR_TYPES; type++) {
+ struct rb_root *root = &self->maps[type];
+ struct rb_node *next = rb_first(root);
+
+ while (next) {
+ struct map *pos = rb_entry(next, struct map, rb_node);
+ next = rb_next(&pos->rb_node);
+ rb_erase(&pos->rb_node, root);
+ /*
+ * We may have references to this map, for
+ * instance in some hist_entry instances, so
+ * just move them to a separate list.
+ */
+ list_add_tail(&pos->node, &self->removed_maps[pos->type]);
+ }
+ }
+}
+
struct symbol *map_groups__find_symbol(struct map_groups *self,
enum map_type type, u64 addr,
symbol_filter_t filter)
@@ -246,6 +278,142 @@ struct symbol *map_groups__find_symbol(struct map_groups *self,
return NULL;
}
+size_t __map_groups__fprintf_maps(struct map_groups *self,
+ enum map_type type, int verbose, FILE *fp)
+{
+ size_t printed = fprintf(fp, "%s:\n", map_type__name[type]);
+ struct rb_node *nd;
+
+ for (nd = rb_first(&self->maps[type]); nd; nd = rb_next(nd)) {
+ struct map *pos = rb_entry(nd, struct map, rb_node);
+ printed += fprintf(fp, "Map:");
+ printed += map__fprintf(pos, fp);
+ if (verbose > 2) {
+ printed += dso__fprintf(pos->dso, type, fp);
+ printed += fprintf(fp, "--\n");
+ }
+ }
+
+ return printed;
+}
+
+size_t map_groups__fprintf_maps(struct map_groups *self, int verbose, FILE *fp)
+{
+ size_t printed = 0, i;
+ for (i = 0; i < MAP__NR_TYPES; ++i)
+ printed += __map_groups__fprintf_maps(self, i, verbose, fp);
+ return printed;
+}
+
+static size_t __map_groups__fprintf_removed_maps(struct map_groups *self,
+ enum map_type type,
+ int verbose, FILE *fp)
+{
+ struct map *pos;
+ size_t printed = 0;
+
+ list_for_each_entry(pos, &self->removed_maps[type], node) {
+ printed += fprintf(fp, "Map:");
+ printed += map__fprintf(pos, fp);
+ if (verbose > 1) {
+ printed += dso__fprintf(pos->dso, type, fp);
+ printed += fprintf(fp, "--\n");
+ }
+ }
+ return printed;
+}
+
+static size_t map_groups__fprintf_removed_maps(struct map_groups *self,
+ int verbose, FILE *fp)
+{
+ size_t printed = 0, i;
+ for (i = 0; i < MAP__NR_TYPES; ++i)
+ printed += __map_groups__fprintf_removed_maps(self, i, verbose, fp);
+ return printed;
+}
+
+size_t map_groups__fprintf(struct map_groups *self, int verbose, FILE *fp)
+{
+ size_t printed = map_groups__fprintf_maps(self, verbose, fp);
+ printed += fprintf(fp, "Removed maps:\n");
+ return printed + map_groups__fprintf_removed_maps(self, verbose, fp);
+}
+
+int map_groups__fixup_overlappings(struct map_groups *self, struct map *map,
+ int verbose, FILE *fp)
+{
+ struct rb_root *root = &self->maps[map->type];
+ struct rb_node *next = rb_first(root);
+
+ while (next) {
+ struct map *pos = rb_entry(next, struct map, rb_node);
+ next = rb_next(&pos->rb_node);
+
+ if (!map__overlap(pos, map))
+ continue;
+
+ if (verbose >= 2) {
+ fputs("overlapping maps:\n", fp);
+ map__fprintf(map, fp);
+ map__fprintf(pos, fp);
+ }
+
+ rb_erase(&pos->rb_node, root);
+ /*
+ * We may have references to this map, for instance in some
+ * hist_entry instances, so just move them to a separate
+ * list.
+ */
+ list_add_tail(&pos->node, &self->removed_maps[map->type]);
+ /*
+ * Now check if we need to create new maps for areas not
+ * overlapped by the new map:
+ */
+ if (map->start > pos->start) {
+ struct map *before = map__clone(pos);
+
+ if (before == NULL)
+ return -ENOMEM;
+
+ before->end = map->start - 1;
+ map_groups__insert(self, before);
+ if (verbose >= 2)
+ map__fprintf(before, fp);
+ }
+
+ if (map->end < pos->end) {
+ struct map *after = map__clone(pos);
+
+ if (after == NULL)
+ return -ENOMEM;
+
+ after->start = map->end + 1;
+ map_groups__insert(self, after);
+ if (verbose >= 2)
+ map__fprintf(after, fp);
+ }
+ }
+
+ return 0;
+}
+
+/*
+ * XXX This should not really _copy_ te maps, but refcount them.
+ */
+int map_groups__clone(struct map_groups *self,
+ struct map_groups *parent, enum map_type type)
+{
+ struct rb_node *nd;
+ for (nd = rb_first(&parent->maps[type]); nd; nd = rb_next(nd)) {
+ struct map *map = rb_entry(nd, struct map, rb_node);
+ struct map *new = map__clone(map);
+ if (new == NULL)
+ return -ENOMEM;
+ map_groups__insert(self, new);
+ }
+ return 0;
+}
+
static u64 map__reloc_map_ip(struct map *map, u64 ip)
{
return ip + (s64)map->pgoff;
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index 6a703fa..4e7a11d 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -97,11 +97,14 @@ struct map_groups {
};
size_t __map_groups__fprintf_maps(struct map_groups *self,
- enum map_type type, FILE *fp);
+ enum map_type type, int verbose, FILE *fp);
void maps__insert(struct rb_root *maps, struct map *map);
struct map *maps__find(struct rb_root *maps, u64 addr);
void map_groups__init(struct map_groups *self);
-size_t map_groups__fprintf_maps(struct map_groups *self, FILE *fp);
+int map_groups__clone(struct map_groups *self,
+ struct map_groups *parent, enum map_type type);
+size_t map_groups__fprintf(struct map_groups *self, int verbose, FILE *fp);
+size_t map_groups__fprintf_maps(struct map_groups *self, int verbose, FILE *fp);
static inline void map_groups__insert(struct map_groups *self, struct map *map)
{
@@ -125,6 +128,9 @@ static inline struct symbol *map_groups__find_function(struct map_groups *self,
return map_groups__find_symbol(self, MAP__FUNCTION, addr, filter);
}
+int map_groups__fixup_overlappings(struct map_groups *self, struct map *map,
+ int verbose, FILE *fp);
+
struct map *map_groups__find_by_name(struct map_groups *self,
enum map_type type, const char *name);
int __map_groups__create_kernel_maps(struct map_groups *self,
@@ -134,5 +140,6 @@ int map_groups__create_kernel_maps(struct map_groups *self,
struct map *vmlinux_maps[MAP__NR_TYPES]);
struct map *map_groups__new_module(struct map_groups *self, u64 start,
const char *filename);
+void map_groups__flush(struct map_groups *self);
#endif /* __PERF_MAP_H */
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 9bbe27d..1f7ecd4 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -38,15 +38,6 @@ failure:
return ret;
}
-void map_groups__init(struct map_groups *self)
-{
- int i;
- for (i = 0; i < MAP__NR_TYPES; ++i) {
- self->maps[i] = RB_ROOT;
- INIT_LIST_HEAD(&self->removed_maps[i]);
- }
-}
-
static struct thread *thread__new(pid_t pid)
{
struct thread *self = zalloc(sizeof(*self));
@@ -62,28 +53,6 @@ static struct thread *thread__new(pid_t pid)
return self;
}
-static void map_groups__flush(struct map_groups *self)
-{
- int type;
-
- for (type = 0; type < MAP__NR_TYPES; type++) {
- struct rb_root *root = &self->maps[type];
- struct rb_node *next = rb_first(root);
-
- while (next) {
- struct map *pos = rb_entry(next, struct map, rb_node);
- next = rb_next(&pos->rb_node);
- rb_erase(&pos->rb_node, root);
- /*
- * We may have references to this map, for
- * instance in some hist_entry instances, so
- * just move them to a separate list.
- */
- list_add_tail(&pos->node, &self->removed_maps[pos->type]);
- }
- }
-}
-
int thread__set_comm(struct thread *self, const char *comm)
{
int err;
@@ -110,69 +79,10 @@ int thread__comm_len(struct thread *self)
return self->comm_len;
}
-size_t __map_groups__fprintf_maps(struct map_groups *self,
- enum map_type type, FILE *fp)
-{
- size_t printed = fprintf(fp, "%s:\n", map_type__name[type]);
- struct rb_node *nd;
-
- for (nd = rb_first(&self->maps[type]); nd; nd = rb_next(nd)) {
- struct map *pos = rb_entry(nd, struct map, rb_node);
- printed += fprintf(fp, "Map:");
- printed += map__fprintf(pos, fp);
- if (verbose > 2) {
- printed += dso__fprintf(pos->dso, type, fp);
- printed += fprintf(fp, "--\n");
- }
- }
-
- return printed;
-}
-
-size_t map_groups__fprintf_maps(struct map_groups *self, FILE *fp)
-{
- size_t printed = 0, i;
- for (i = 0; i < MAP__NR_TYPES; ++i)
- printed += __map_groups__fprintf_maps(self, i, fp);
- return printed;
-}
-
-static size_t __map_groups__fprintf_removed_maps(struct map_groups *self,
- enum map_type type, FILE *fp)
-{
- struct map *pos;
- size_t printed = 0;
-
- list_for_each_entry(pos, &self->removed_maps[type], node) {
- printed += fprintf(fp, "Map:");
- printed += map__fprintf(pos, fp);
- if (verbose > 1) {
- printed += dso__fprintf(pos->dso, type, fp);
- printed += fprintf(fp, "--\n");
- }
- }
- return printed;
-}
-
-static size_t map_groups__fprintf_removed_maps(struct map_groups *self, FILE *fp)
-{
- size_t printed = 0, i;
- for (i = 0; i < MAP__NR_TYPES; ++i)
- printed += __map_groups__fprintf_removed_maps(self, i, fp);
- return printed;
-}
-
-static size_t map_groups__fprintf(struct map_groups *self, FILE *fp)
-{
- size_t printed = map_groups__fprintf_maps(self, fp);
- printed += fprintf(fp, "Removed maps:\n");
- return printed + map_groups__fprintf_removed_maps(self, fp);
-}
-
static size_t thread__fprintf(struct thread *self, FILE *fp)
{
return fprintf(fp, "Thread %d %s\n", self->pid, self->comm) +
- map_groups__fprintf(&self->mg, fp);
+ map_groups__fprintf(&self->mg, verbose, fp);
}
struct thread *perf_session__findnew(struct perf_session *self, pid_t pid)
@@ -214,87 +124,12 @@ struct thread *perf_session__findnew(struct perf_session *self, pid_t pid)
return th;
}
-static int map_groups__fixup_overlappings(struct map_groups *self,
- struct map *map)
-{
- struct rb_root *root = &self->maps[map->type];
- struct rb_node *next = rb_first(root);
-
- while (next) {
- struct map *pos = rb_entry(next, struct map, rb_node);
- next = rb_next(&pos->rb_node);
-
- if (!map__overlap(pos, map))
- continue;
-
- if (verbose >= 2) {
- fputs("overlapping maps:\n", stderr);
- map__fprintf(map, stderr);
- map__fprintf(pos, stderr);
- }
-
- rb_erase(&pos->rb_node, root);
- /*
- * We may have references to this map, for instance in some
- * hist_entry instances, so just move them to a separate
- * list.
- */
- list_add_tail(&pos->node, &self->removed_maps[map->type]);
- /*
- * Now check if we need to create new maps for areas not
- * overlapped by the new map:
- */
- if (map->start > pos->start) {
- struct map *before = map__clone(pos);
-
- if (before == NULL)
- return -ENOMEM;
-
- before->end = map->start - 1;
- map_groups__insert(self, before);
- if (verbose >= 2)
- map__fprintf(before, stderr);
- }
-
- if (map->end < pos->end) {
- struct map *after = map__clone(pos);
-
- if (after == NULL)
- return -ENOMEM;
-
- after->start = map->end + 1;
- map_groups__insert(self, after);
- if (verbose >= 2)
- map__fprintf(after, stderr);
- }
- }
-
- return 0;
-}
-
void thread__insert_map(struct thread *self, struct map *map)
{
- map_groups__fixup_overlappings(&self->mg, map);
+ map_groups__fixup_overlappings(&self->mg, map, verbose, stderr);
map_groups__insert(&self->mg, map);
}
-/*
- * XXX This should not really _copy_ te maps, but refcount them.
- */
-static int map_groups__clone(struct map_groups *self,
- struct map_groups *parent, enum map_type type)
-{
- struct rb_node *nd;
- for (nd = rb_first(&parent->maps[type]); nd; nd = rb_next(nd)) {
- struct map *map = rb_entry(nd, struct map, rb_node);
- struct map *new = map__clone(map);
- if (new == NULL)
- return -ENOMEM;
- map_groups__insert(self, new);
- }
- return 0;
-}
-
int thread__fork(struct thread *self, struct thread *parent)
{
int i;
--
1.6.2.5
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists