From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 123082 invoked by alias); 29 Nov 2017 10:55:58 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Received: (qmail 122947 invoked by uid 89); 29 Nov 2017 10:55:57 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-26.7 required=5.0 tests=BAYES_00,GIT_PATCH_0,GIT_PATCH_1,GIT_PATCH_2,GIT_PATCH_3,KB_WAM_FROM_NAME_SINGLEWORD,SPF_HELO_PASS,T_RP_MATCHES_RCVD autolearn=ham version=3.3.2 spammy=announce X-HELO: mx1.redhat.com Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Wed, 29 Nov 2017 10:55:56 +0000 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 0A6D580F95 for ; Wed, 29 Nov 2017 10:55:55 +0000 (UTC) Received: from dritchie.redhat.com (ovpn-117-26.ams2.redhat.com [10.36.117.26]) by smtp.corp.redhat.com (Postfix) with ESMTP id 22F015D6A3; Wed, 29 Nov 2017 10:55:53 +0000 (UTC) From: Sergio Lopez To: gdb-patches@sourceware.org Cc: Sergio Lopez Subject: [PATCH v2 2/4] Document new {set,show} dump-excluded-mappings commands. Date: Wed, 29 Nov 2017 10:55:00 -0000 Message-Id: <20171129105543.19236-3-slp@redhat.com> In-Reply-To: <20171129105543.19236-1-slp@redhat.com> References: <20171129105543.19236-1-slp@redhat.com> X-SW-Source: 2017-11/txt/msg00756.txt.bz2 gdb/ChangeLog: 2017-11-29 Sergio Lopez * NEWS (Changes since GDB 8.0): Announce {set,show} dump_excluded_mappings commands. gdb/doc/ChangeLog: 2017-11-29 Sergio Lopez * gdb.texinfo (gcore): Mention new {set,show} dump-excluded-mappings commands. (set dump-excluded-mappings): Document new command. --- gdb/NEWS | 5 +++++ gdb/doc/gdb.texinfo | 14 +++++++++++++- 2 files changed, 18 insertions(+), 1 deletion(-) diff --git a/gdb/NEWS b/gdb/NEWS index 754ce103bd..1372552a37 100644 --- a/gdb/NEWS +++ b/gdb/NEWS @@ -134,6 +134,11 @@ set debug separate-debug-file show debug separate-debug-file Control the display of debug output about separate debug file search. +set dump-excluded-mappings +show dump-excluded-mappings + Control whether mappings marked with the VM_DONTDUMP flag should be + dumped when generating a core file. + maint info selftests List the registered selftests. diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo index 675f6e7bc8..7b25912e49 100644 --- a/gdb/doc/gdb.texinfo +++ b/gdb/doc/gdb.texinfo @@ -11543,7 +11543,9 @@ this writing, @sc{gnu}/Linux, FreeBSD, Solaris, and S390). On @sc{gnu}/Linux, this command can take into account the value of the file @file{/proc/@var{pid}/coredump_filter} when generating the core -dump (@pxref{set use-coredump-filter}). +dump (@pxref{set use-coredump-filter}), and by default honors the +@code{VM_DONTDUMP} flag for mappings where it is present in the file +@file{/proc/@var{pid}/smaps} (@pxref{set dump-excluded-mappings}). @kindex set use-coredump-filter @anchor{set use-coredump-filter} @@ -11573,6 +11575,16 @@ value is currently @code{0x33}, which means that bits @code{0} (anonymous private mappings), @code{1} (anonymous shared mappings), @code{4} (ELF headers) and @code{5} (private huge pages) are active. This will cause these memory mappings to be dumped automatically. + +@kindex set dump-excluded-mappings +@anchor{set dump-excluded-mappings} +@item set dump-excluded-mappings on +@itemx set dump-excluded-mappings off +If @code{on} is specified, @value{GDBN} will dump memory mappings +marked with the @code{VM_DONTDUMP} flag. This flag is represented in +the file @file{/proc/@var{pid}/smaps} with the acronym @code{dd}. + +The default value is @code{off}. @end table @node Character Sets -- 2.14.3