From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Wed, 3 Jun 2009 17:49:21 +0000 (-0300)
Subject: perf_counter tools: Fix off-by-one bug in symbol__new
X-Git-Tag: v2.6.31-rc1~383^2~93
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=18374ab76e3ec1cf1b0ca5a8d08e35cfc5d01669;p=~emulex%2Finfiniband.git

perf_counter tools: Fix off-by-one bug in symbol__new

The end is really (start + len - 1). Noticed when synthesizing
the PLT symbols, that are small (16 bytes), and hot on the
start RIP.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
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>
LKML-Reference: <20090603174921.GG7805@ghostprotocols.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/Documentation/perf_counter/util/symbol.c b/Documentation/perf_counter/util/symbol.c
index d52a1ae5342..35ee6de1e51 100644
--- a/Documentation/perf_counter/util/symbol.c
+++ b/Documentation/perf_counter/util/symbol.c
@@ -19,7 +19,7 @@ static struct symbol *symbol__new(uint64_t start, uint64_t len,
 			self = ((void *)self) + priv_size;
 		}
 		self->start = start;
-		self->end   = start + len;
+		self->end   = start + len - 1;
 		memcpy(self->name, name, namelen);
 	}