From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6541 invoked by alias); 6 Oct 2014 14:21:32 -0000 Mailing-List: contact java-patches-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: java-patches-owner@gcc.gnu.org Received: (qmail 6523 invoked by uid 89); 6 Oct 2014 14:21:31 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=1.2 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,MEDICAL_SUBJECT,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=no version=3.3.2 X-Spam-User: qpsmtpd, 2 recipients X-HELO: mail-pa0-f53.google.com Received: from mail-pa0-f53.google.com (HELO mail-pa0-f53.google.com) (209.85.220.53) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-SHA encrypted) ESMTPS; Mon, 06 Oct 2014 14:21:30 +0000 Received: by mail-pa0-f53.google.com with SMTP id kq14so5393317pab.12 for ; Mon, 06 Oct 2014 07:21:28 -0700 (PDT) X-Received: by 10.70.128.133 with SMTP id no5mr5279374pdb.106.1412605288801; Mon, 06 Oct 2014 07:21:28 -0700 (PDT) Received: from ShengShiZhuChengdeMacBook-Pro.local ([223.72.65.50]) by mx.google.com with ESMTPSA id de14sm8312837pac.7.2014.10.06.07.21.25 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 06 Oct 2014 07:21:27 -0700 (PDT) Message-ID: <5432A6C5.8040205@gmail.com> Date: Mon, 06 Oct 2014 14:21:00 -0000 From: Chen Gang User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:31.0) Gecko/20100101 Thunderbird/31.1.2 MIME-Version: 1.0 To: Andrew Haley , Mike Stump CC: Michael Eager , Jeff Law , davem@redhat.com, gcc-patches List , java-patches@gcc.gnu.org Subject: Re: Libjava test failure Was: [PATCH] microblaze: microblaze.md: Use 'SI' instead of 'VOID' for operand 1 of 'call_value_intern' References: <5430B7E8.1060001@gmail.com> <5430BBBE.8050905@gmail.com> <543215AE.7080206@gmail.com> <543254DB.9020600@redhat.com> <54329EEC.8040609@gmail.com> <54329F17.7050107@redhat.com> In-Reply-To: <54329F17.7050107@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-SW-Source: 2014-q4/txt/msg00006.txt.bz2 On 10/6/14 21:54, Andrew Haley wrote: > On 10/06/2014 02:53 PM, Chen Gang wrote: >> On 10/6/14 16:37, Andrew Haley wrote: >>> On 06/10/14 05:08, Chen Gang wrote: >>>> After try normal configure, get almost the same result, I guess, our >>>> testsuite under Darwin x86_64 is OK. >>>> >>>> If no any additional reply within a week, I shall continue to try to >>>> analyze the libjava Throw_2 issue. >>> >>> Throw_2 is a test specially contrived to detect segfaults that are >>> not being correctly detected and turned into NullPointerException()s. >>> A failure indicates that the segfault signal handler is broken. >> >> OK, thank, at present, it passes compiling (can generate 'Throw_2.exe'), >> and after run it without any parameters, "1" is printed, but "2" is not >> printed. >> >> Under Fedora 20 x86_64, the same gcc code, it is OK ("2" can be printed), >> but under Darwin x86_64, it is "Abort trap: 6" instead of. The related >> code: "try{Double.parseDouble(str());}catch", and "str(){return null;}". >> >> And I shall continue to try to analyze it (within this month), and >> welcome any additional ideas, suggestions, and completion for it, > > Not every platform supports unwinding through signal handlers. In x86 > Linux there is some very clever code which interacts with the kernel to > allow this. > Excuse me, I am not quite familiar with Java, I guess what you said is: - The related feature need OS kernel support, if OS kernel does not support, it may report "Abort trap: 6" or others. - And OS kernel has feature to support "1" printed does not mean it also has feature to support "2" printed. - And I need try to make sure that my current Darwin kernel whether supports it or not. If what I guess is incorrect, please let me know, thanks. For me, whether Darwin kernel supports or not, we have to improve current implementation (may be testsuite configure or Makefile) to avoid testsuite breaking. Thanks. -- Chen Gang Open, share, and attitude like air, water, and life which God blessed