{"id":808636,"url":"http://patchwork.ozlabs.org/api/patches/808636/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/patch/20170901111934.GF2323@tucnak/","project":{"id":17,"url":"http://patchwork.ozlabs.org/api/projects/17/?format=json","name":"GNU Compiler Collection","link_name":"gcc","list_id":"gcc-patches.gcc.gnu.org","list_email":"gcc-patches@gcc.gnu.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20170901111934.GF2323@tucnak>","list_archive_url":null,"date":"2017-09-01T11:19:34","name":"Document -fsanitize=pointer-overflow (PR sanitizer/81902)","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"87dfd009fb9b293560797d2056b7692f78840e90","submitter":{"id":671,"url":"http://patchwork.ozlabs.org/api/people/671/?format=json","name":"Jakub Jelinek","email":"jakub@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/gcc/patch/20170901111934.GF2323@tucnak/mbox/","series":[{"id":1003,"url":"http://patchwork.ozlabs.org/api/series/1003/?format=json","web_url":"http://patchwork.ozlabs.org/project/gcc/list/?series=1003","date":"2017-09-01T11:19:34","name":"Document -fsanitize=pointer-overflow (PR sanitizer/81902)","version":1,"mbox":"http://patchwork.ozlabs.org/series/1003/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/808636/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/808636/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","mailing list gcc-patches@gcc.gnu.org"],"Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=gcc.gnu.org\n\t(client-ip=209.132.180.131; helo=sourceware.org;\n\tenvelope-from=gcc-patches-return-461263-incoming=patchwork.ozlabs.org@gcc.gnu.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tunprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org\n\theader.b=\"kICto/S1\"; dkim-atps=neutral","sourceware.org; auth=none","ext-mx02.extmail.prod.ext.phx2.redhat.com;\n\tdmarc=none (p=none dis=none) header.from=redhat.com","ext-mx02.extmail.prod.ext.phx2.redhat.com;\n\tspf=fail smtp.mailfrom=jakub@redhat.com"],"Received":["from sourceware.org (server1.sourceware.org [209.132.180.131])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xkGx7484Jz9s7F\n\tfor ;\n\tFri, 1 Sep 2017 21:19:52 +1000 (AEST)","(qmail 59755 invoked by alias); 1 Sep 2017 11:19:46 -0000","(qmail 59704 invoked by uid 89); 1 Sep 2017 11:19:45 -0000","from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by\n\tsourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP;\n\tFri, 01 Sep 2017 11:19:41 +0000","from smtp.corp.redhat.com\n\t(int-mx02.intmail.prod.int.phx2.redhat.com\n\t[10.5.11.12])\t(using TLSv1.2 with cipher AECDH-AES256-SHA\n\t(256/256 bits))\t(No client certificate requested)\tby\n\tmx1.redhat.com (Postfix) with ESMTPS id C876681F13;\n\tFri, 1 Sep 2017 11:19:38 +0000 (UTC)","from tucnak.zalov.cz (ovpn-116-33.ams2.redhat.com\n\t[10.36.116.33])\tby smtp.corp.redhat.com (Postfix) with ESMTPS\n\tid 8F2EA7EBE6; Fri, 1 Sep 2017 11:19:37 +0000 (UTC)","from tucnak.zalov.cz (localhost [127.0.0.1])\tby tucnak.zalov.cz\n\t(8.15.2/8.15.2) with ESMTP id v81BJZsY007321;\n\tFri, 1 Sep 2017 13:19:35 +0200","(from jakub@localhost)\tby tucnak.zalov.cz (8.15.2/8.15.2/Submit)\n\tid v81BJYDh007320; Fri, 1 Sep 2017 13:19:34 +0200"],"DomainKey-Signature":"a=rsa-sha1; c=nofws; d=gcc.gnu.org; h=list-id\n\t:list-unsubscribe:list-archive:list-post:list-help:sender:date\n\t:from:to:cc:subject:message-id:reply-to:mime-version\n\t:content-type; q=dns; s=default; b=mQ7VP7n650LSj3KMXVqDlaz7p9uJO\n\tuNrtJCZHM8SaHDgxlcqvamIjqbZ5FHWgqpJ00GwPbReBO0dRoM8SQs/KLGVojDxC\n\t3WmBn2xX41tsAJwYH34LzPLB1lEz2IK/tFpZyt+sjVU5gPybcy0k4j1/ATQyVt5c\n\tEpyjrX7kMsThUs=","DKIM-Signature":"v=1; a=rsa-sha1; c=relaxed; d=gcc.gnu.org; h=list-id\n\t:list-unsubscribe:list-archive:list-post:list-help:sender:date\n\t:from:to:cc:subject:message-id:reply-to:mime-version\n\t:content-type; s=default; bh=JjNRaELAobQqwmWCmZjdo4PDyZQ=; b=kIC\n\tto/S1sUscEZEgKzS6a9k7Kt3Ah+y1MKciWzIINeE9Ei2oBeKDIxVqQqjc2uizRq8\n\t6i6nsIl8cIT0AQANqLG6K4n2oIAuD5FdS2QPQwQSeRp1cJ75hK8V5Pkl4eOv/pnD\n\triJh9tEo4D7fJaCs/NlLSvJ/Pirr9Nk8NVg+DoJE=","Mailing-List":"contact gcc-patches-help@gcc.gnu.org; run by ezmlm","Precedence":"bulk","List-Id":"","List-Unsubscribe":"","List-Archive":"","List-Post":"","List-Help":"","Sender":"gcc-patches-owner@gcc.gnu.org","X-Virus-Found":"No","X-Spam-SWARE-Status":"No, score=-16.9 required=5.0 tests=BAYES_00, GIT_PATCH_1,\n\tGIT_PATCH_2, GIT_PATCH_3, RP_MATCHES_RCVD,\n\tSPF_HELO_PASS autolearn=ham version=3.3.2 spammy=","X-HELO":"mx1.redhat.com","DMARC-Filter":"OpenDMARC Filter v1.3.2 mx1.redhat.com C876681F13","Date":"Fri, 1 Sep 2017 13:19:34 +0200","From":"Jakub Jelinek ","To":"Richard Biener ","Cc":"gcc-patches@gcc.gnu.org","Subject":"[PATCH] Document -fsanitize=pointer-overflow (PR sanitizer/81902)","Message-ID":"<20170901111934.GF2323@tucnak>","Reply-To":"Jakub Jelinek ","MIME-Version":"1.0","Content-Type":"text/plain; charset=us-ascii","Content-Disposition":"inline","User-Agent":"Mutt/1.7.1 (2016-10-04)","X-IsSubscribed":"yes"},"content":"Hi!\n\nMartin Sebor reported I forgot to document this new sanitizer option.\nFixed thusly, bootstrapped/regtested on x86_64-linux and i686-linux, ok for\ntrunk?\n\n2017-09-01 Jakub Jelinek \n\n\tPR sanitizer/81902\n\t* doc/invoke.texi: Document -fsanitize=pointer-overflow.\n\n\n\tJakub","diff":"--- gcc/doc/invoke.texi.jj\t2017-08-29 19:03:08.000000000 +0200\n+++ gcc/doc/invoke.texi\t2017-08-29 20:30:36.563053682 +0200\n@@ -11074,6 +11074,12 @@ This option enables instrumentation of C\n accesses and some conversions between pointers to base and derived classes,\n to verify the referenced object has the correct dynamic type.\n \n+@item -fsanitize=pointer-overflow\n+@opindex fsanitize=pointer-overflow\n+\n+This option enables instrumentation of pointer arithmetics. If the pointer\n+arithmetics overflows, a run-time error is issued.\n+\n @end table\n \n While @option{-ftrapv} causes traps for signed overflows to be emitted,\n","prefixes":[]}