From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 29041 invoked by alias); 26 Jul 2010 14:37:57 -0000 Received: (qmail 29023 invoked by uid 22791); 26 Jul 2010 14:37:54 -0000 X-SWARE-Spam-Status: No, hits=-5.9 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_HI,SPF_HELO_PASS,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 26 Jul 2010 14:37:49 +0000 Received: from int-mx03.intmail.prod.int.phx2.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.16]) by mx1.redhat.com (8.13.8/8.13.8) with ESMTP id o6QEblVO029467 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Mon, 26 Jul 2010 10:37:47 -0400 Received: from hase.home (ovpn01.gateway.prod.ext.phx2.redhat.com [10.5.9.1]) by int-mx03.intmail.prod.int.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id o6QEbkss000786 for ; Mon, 26 Jul 2010 10:37:46 -0400 From: Andreas Schwab To: libc-hacker@sourceware.org Subject: [PATCH] Document M_PERTURB X-Yow: Let's send the Russians defective lifestyle accessories! Date: Mon, 26 Jul 2010 14:37:00 -0000 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Mailing-List: contact libc-hacker-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-hacker-owner@sourceware.org X-SW-Source: 2010-07/txt/msg00005.txt.bz2 2010-07-26 Andreas Schwab * manual/memory.texi (Malloc Tunable Parameters): Document M_PERTURB. diff --git a/manual/memory.texi b/manual/memory.texi index 59ea1ee..6ae408d 100644 --- a/manual/memory.texi +++ b/manual/memory.texi @@ -702,6 +702,11 @@ be allocated via @code{mmap}. @item M_MMAP_MAX The maximum number of chunks to allocate with @code{mmap}. Setting this to zero disables all use of @code{mmap}. +@item M_PERTURB +If non-zero, memory blocks are filled with a value depending on +this parameter when they are allocated (except when allocated by +@code{calloc}) and freed. This can be used to debug the use of +uninitialized or freed heap memory. @end table @end deftypefun -- 1.7.1.1 -- Andreas Schwab, schwab@redhat.com GPG Key fingerprint = D4E8 DBE3 3813 BB5D FA84 5EC7 45C6 250E 6F00 984E "And now for something completely different."