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Date: Tue, 26 May 2009 18:21:32 GMT
From: tip-bot for Ingo Molnar <mingo@elte.hu>
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Subject: [tip:perfcounters/core] perf report: add more debugging
Message-ID: <tip-78bfcc8556838bad563b781c49e5f20ec5831611@git.kernel.org>
Git-Commit-ID: 78bfcc8556838bad563b781c49e5f20ec5831611
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Commit-ID:  78bfcc8556838bad563b781c49e5f20ec5831611
Gitweb:     http://git.kernel.org/tip/78bfcc8556838bad563b781c49e5f20ec5831611
Author:     Ingo Molnar <mingo@elte.hu>
AuthorDate: Tue, 26 May 2009 19:03:36 +0200
Committer:  Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 26 May 2009 19:15:59 +0200

perf report: add more debugging

Add the offset of the file we are analyzing, and the size of the record.

In case of problems it's easier to see where the parser lost track.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Kacur <jkacur@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>


---
 Documentation/perf_counter/builtin-report.c |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/Documentation/perf_counter/builtin-report.c b/Documentation/perf_counter/builtin-report.c
index 4b5ccc5..1b16f81 100644
--- a/Documentation/perf_counter/builtin-report.c
+++ b/Documentation/perf_counter/builtin-report.c
@@ -709,7 +709,8 @@ more:
 		uint64_t ip = event->ip.ip;
 
 		if (dump_trace) {
-			fprintf(stderr, "PERF_EVENT (IP, %d): %d: %p\n",
+			fprintf(stderr, "%p: PERF_EVENT (IP, %d): %d: %p\n",
+				(void *)(offset + head),
 				event->header.misc,
 				event->ip.pid,
 				(void *)event->ip.ip);
@@ -753,7 +754,8 @@ more:
 		struct map *map = map__new(&event->mmap);
 
 		if (dump_trace) {
-			fprintf(stderr, "PERF_EVENT_MMAP: [%p(%p) @ %p]: %s\n",
+			fprintf(stderr, "%p: PERF_EVENT_MMAP: [%p(%p) @ %p]: %s\n",
+				(void *)(offset + head),
 				(void *)event->mmap.start,
 				(void *)event->mmap.len,
 				(void *)event->mmap.pgoff,
@@ -771,7 +773,8 @@ more:
 		struct thread *thread = threads__findnew(event->comm.pid);
 
 		if (dump_trace) {
-			fprintf(stderr, "PERF_EVENT_COMM: %s:%d\n",
+			fprintf(stderr, "%p: PERF_EVENT_COMM: %s:%d\n",
+				(void *)(offset + head),
 				event->comm.comm, event->comm.pid);
 		}
 		if (thread == NULL ||
@@ -783,7 +786,8 @@ more:
 		break;
 	}
 	default: {
-		fprintf(stderr, "skipping unknown header type: %d\n",
+		fprintf(stderr, "%p: skipping unknown header type: %d\n",
+			(void *)(offset + head),
 			event->header.type);
 		total_unknown++;
 	}