From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 21944 invoked by alias); 6 Oct 2014 13:54:43 -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 21926 invoked by uid 89); 6 Oct 2014 13:54:43 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.3 required=5.0 tests=AWL,BAYES_00,MEDICAL_SUBJECT,SPF_HELO_PASS,SPF_PASS,T_RP_MATCHES_RCVD autolearn=no version=3.3.2 X-Spam-User: qpsmtpd, 2 recipients 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 (AES256-GCM-SHA384 encrypted) ESMTPS; Mon, 06 Oct 2014 13:54:41 +0000 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s96DsYJd020018 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 6 Oct 2014 09:54:35 -0400 Received: from zebedee.pink ([10.3.113.10]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s96DsVDi031908; Mon, 6 Oct 2014 09:54:31 -0400 Message-ID: <54329F17.7050107@redhat.com> Date: Mon, 06 Oct 2014 13:54:00 -0000 From: Andrew Haley User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.8.0 MIME-Version: 1.0 To: Chen Gang , 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> In-Reply-To: <54329EEC.8040609@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes X-SW-Source: 2014-q4/txt/msg00005.txt.bz2 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. Andrew.