| 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
| ||
|
Message-Id: <1401283262-16035-4-git-send-email-jolsa@kernel.org>
Date: Wed, 28 May 2014 15:20:56 +0200
From: Jiri Olsa <jolsa@...nel.org>
To: Ingo Molnar <mingo@...nel.org>
Cc: linux-kernel@...r.kernel.org, Don Zickus <dzickus@...hat.com>,
Jiri Olsa <jolsa@...nel.org>
Subject: [PATCH 3/9] perf tools: Update mmap2 interface with protection and flag bits
From: Don Zickus <dzickus@...hat.com>
The kernel piece passes more info now. Update the perf tool to reflect
that and adjust the synthesized maps to play along.
Signed-off-by: Don Zickus <dzickus@...hat.com>
Link: http://lkml.kernel.org/r/1400526833-141779-4-git-send-email-dzickus@redhat.com
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
tools/perf/util/event.c | 23 +++++++++++++++++++++--
tools/perf/util/event.h | 2 ++
tools/perf/util/machine.c | 4 +++-
tools/perf/util/map.c | 4 +++-
tools/perf/util/map.h | 4 +++-
5 files changed, 32 insertions(+), 5 deletions(-)
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 5e7c722..e91d28e 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -1,4 +1,5 @@
#include <linux/types.h>
+#include <sys/mman.h>
#include "event.h"
#include "debug.h"
#include "hist.h"
@@ -214,6 +215,21 @@ int perf_event__synthesize_mmap_events(struct perf_tool *tool,
else
event->header.misc = PERF_RECORD_MISC_GUEST_USER;
+ /* map protection and flags bits */
+ event->mmap2.prot = 0;
+ event->mmap2.flags = 0;
+ if (prot[0] == 'r')
+ event->mmap2.prot |= PROT_READ;
+ if (prot[1] == 'w')
+ event->mmap2.prot |= PROT_WRITE;
+ if (prot[2] == 'x')
+ event->mmap2.prot |= PROT_EXEC;
+
+ if (prot[3] == 's')
+ event->mmap2.flags |= MAP_SHARED;
+ else
+ event->mmap2.flags |= MAP_PRIVATE;
+
if (prot[2] != 'x') {
if (!mmap_data || prot[0] != 'r')
continue;
@@ -614,12 +630,15 @@ size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp)
size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
{
return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64
- " %02x:%02x %"PRIu64" %"PRIu64"]: %c %s\n",
+ " %02x:%02x %"PRIu64" %"PRIu64"]: %c%c%c%c %s\n",
event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj,
event->mmap2.min, event->mmap2.ino,
event->mmap2.ino_generation,
- (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x',
+ (event->mmap2.prot & PROT_READ) ? 'r' : '-',
+ (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
+ (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
+ (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
event->mmap2.filename);
}
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index d970232..9ba2eb3 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -27,6 +27,8 @@ struct mmap2_event {
u32 min;
u64 ino;
u64 ino_generation;
+ u32 prot;
+ u32 flags;
char filename[PATH_MAX];
};
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 7409ac8..0e5fea9 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1060,6 +1060,8 @@ int machine__process_mmap2_event(struct machine *machine,
event->mmap2.pid, event->mmap2.maj,
event->mmap2.min, event->mmap2.ino,
event->mmap2.ino_generation,
+ event->mmap2.prot,
+ event->mmap2.flags,
event->mmap2.filename, type);
if (map == NULL)
@@ -1105,7 +1107,7 @@ int machine__process_mmap_event(struct machine *machine, union perf_event *event
map = map__new(&machine->user_dsos, event->mmap.start,
event->mmap.len, event->mmap.pgoff,
- event->mmap.pid, 0, 0, 0, 0,
+ event->mmap.pid, 0, 0, 0, 0, 0, 0,
event->mmap.filename,
type);
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 8ccbb32..25c571f 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -138,7 +138,7 @@ void map__init(struct map *map, enum map_type type,
struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino,
- u64 ino_gen, char *filename,
+ u64 ino_gen, u32 prot, u32 flags, char *filename,
enum map_type type)
{
struct map *map = malloc(sizeof(*map));
@@ -157,6 +157,8 @@ struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
map->min = d_min;
map->ino = ino;
map->ino_generation = ino_gen;
+ map->prot = prot;
+ map->flags = flags;
if ((anon || no_dso) && type == MAP__FUNCTION) {
snprintf(newfilename, sizeof(newfilename), "/tmp/perf-%d.map", pid);
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index ae2d451..7758c72 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -35,6 +35,8 @@ struct map {
bool referenced;
bool erange_warned;
u32 priv;
+ u32 prot;
+ u32 flags;
u64 pgoff;
u64 reloc;
u32 maj, min; /* only valid for MMAP2 record */
@@ -118,7 +120,7 @@ void map__init(struct map *map, enum map_type type,
u64 start, u64 end, u64 pgoff, struct dso *dso);
struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino,
- u64 ino_gen,
+ u64 ino_gen, u32 prot, u32 flags,
char *filename, enum map_type type);
struct map *map__new2(u64 start, struct dso *dso, enum map_type type);
void map__delete(struct map *map);
--
1.8.3.1
--
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