[tip: perf/core] libperf: Add PERF_RECORD_MMAP2 'struct mmap2_event' to perf/event.h

From: tip-bot2 for Jiri Olsa
Date: Tue Aug 27 2019 - 04:27:30 EST


The following commit has been merged into the perf/core branch of tip:

Commit-ID: b66ced19c9f64dbe707cf318fae9fca82b999564
Gitweb: https://git.kernel.org/tip/b66ced19c9f64dbe707cf318fae9fca82b999564
Author: Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Sun, 25 Aug 2019 20:17:42 +02:00
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitterDate: Mon, 26 Aug 2019 19:39:09 -03:00

libperf: Add PERF_RECORD_MMAP2 'struct mmap2_event' to perf/event.h

Moving mmap2_event event definition into libperf's event.h header
include.

In order to keep libperf simple, we switch 'u64/u32/u16/u8' types used
events to their generic '__u*' versions.

Perf added 'u*' types mainly to ease up printing __u64 values
as stated in the linux/types.h comment:

/*
* We define u64 as uint64_t for every architecture
* so that we can print it with "%"PRIx64 without getting warnings.
*
* typedef __u64 u64;
* typedef __s64 s64;
*/

Adding and using new PRI_lu64 and PRI_lx64 macros to be used for
that. Using extra '_' to ease up the reading and differentiate
them from standard PRI*64 macros.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Michael Petlan <mpetlan@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: https://lkml.kernel.org/n/tip-ufs9ityr5w2xqwtd5w3p6dm4@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/lib/include/perf/event.h | 15 +++++++++++++++
tools/perf/util/event.c | 6 +++---
tools/perf/util/event.h | 15 ---------------
3 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/tools/perf/lib/include/perf/event.h b/tools/perf/lib/include/perf/event.h
index 13fe15a..c82e0c2 100644
--- a/tools/perf/lib/include/perf/event.h
+++ b/tools/perf/lib/include/perf/event.h
@@ -15,4 +15,19 @@ struct mmap_event {
char filename[PATH_MAX];
};

+struct mmap2_event {
+ struct perf_event_header header;
+ __u32 pid, tid;
+ __u64 start;
+ __u64 len;
+ __u64 pgoff;
+ __u32 maj;
+ __u32 min;
+ __u64 ino;
+ __u64 ino_generation;
+ __u32 prot;
+ __u32 flags;
+ char filename[PATH_MAX];
+};
+
#endif /* __LIBPERF_EVENT_H */
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 43c8625..0954f98 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -387,7 +387,7 @@ int perf_event__synthesize_mmap_events(struct perf_tool *tool,
strcpy(execname, "");

/* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */
- n = sscanf(bf, "%"PRIx64"-%"PRIx64" %s %"PRIx64" %x:%x %u %[^\n]\n",
+ n = sscanf(bf, "%"PRI_lx64"-%"PRI_lx64" %s %"PRI_lx64" %x:%x %u %[^\n]\n",
&event->mmap2.start, &event->mmap2.len, prot,
&event->mmap2.pgoff, &event->mmap2.maj,
&event->mmap2.min,
@@ -1362,8 +1362,8 @@ 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%c%c%c %s\n",
+ return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64
+ " %02x:%02x %"PRI_lu64" %"PRI_lu64"]: %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,
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index f43eff2..af252be 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -27,21 +27,6 @@
#define PRI_lx64 PRIx64
#endif

-struct mmap2_event {
- struct perf_event_header header;
- u32 pid, tid;
- u64 start;
- u64 len;
- u64 pgoff;
- u32 maj;
- u32 min;
- u64 ino;
- u64 ino_generation;
- u32 prot;
- u32 flags;
- char filename[PATH_MAX];
-};
-
struct comm_event {
struct perf_event_header header;
u32 pid, tid;