From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gdb-return-46241-listarch-gdb=sources.redhat.com@sourceware.org>
Received: (qmail 46310 invoked by alias); 3 Feb 2018 03:57:52 -0000
Mailing-List: contact gdb-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <gdb.sourceware.org>
List-Subscribe: <mailto:gdb-subscribe@sourceware.org>
List-Archive: <http://sourceware.org/ml/gdb/>
List-Post: <mailto:gdb@sourceware.org>
List-Help: <mailto:gdb-help@sourceware.org>, <http://sourceware.org/ml/#faqs>
Sender: gdb-owner@sourceware.org
Received: (qmail 46291 invoked by uid 89); 3 Feb 2018 03:57:51 -0000
Authentication-Results: sourceware.org; auth=none
X-Virus-Found: No
X-Spam-SWARE-Status: No, score=2.2 required=5.0 tests=AWL,BAYES_00,FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=no version=3.3.2 spammy=H*i:sk:CAATAM3, H*f:sk:CAATAM3, H*c:alternative
X-HELO: mail-qk0-f169.google.com
Received: from mail-qk0-f169.google.com (HELO mail-qk0-f169.google.com) (209.85.220.169) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Sat, 03 Feb 2018 03:57:50 +0000
Received: by mail-qk0-f169.google.com with SMTP id n188so15138394qkn.11        for <gdb@sourceware.org>; Fri, 02 Feb 2018 19:57:50 -0800 (PST)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;        d=1e100.net; s=20161025;        h=x-gm-message-state:mime-version:in-reply-to:references:from:date         :message-id:subject:to:cc;        bh=kM01fqwQGzaKcYUjliFHf/SVFS3WnHUB/MABZBscatw=;        b=R9ixqNEjcEgbhAkTBu7/bYMUgTwzk6kl6VXgnxB4X6eng41GZDeTqSUKEVD3rRk3gC         Xj37ZN4/tozzAuMpWycvtjxFOgcFK8pZQmyrWcztufntRNea8AETsoVPn8vbOh9UnTcW         iLEjwiIhGZDY0e0OFtvJk1w3YnG0JUqH/Wkkq8qNhFkLRAdSdUm27g2p0ccveT+4WdTJ         yr65IR3pn7tsCMvL8cMZUi9ov6yAWajUS3lAhnGCEoIVdwqUh4RakOdfs/lxdvBq5Lwq         r25AcUW30mnbm6sMvt0/UNYkP0iR8p2woKV9/Y1ZcN9DzQNvjUqfvRujk0rKEodvCCWY         WIpA==
X-Gm-Message-State: AKwxyteEHmGIUILRLyE98ASFTH7/diGoswekFhfeRWcB2fqvYaJBNzQw	kojRIpCqBu4lOVifSyqFAWVmcOT0Ev9lVNxCXJs=
X-Google-Smtp-Source: AH8x226lx7BStipsRQbnTw1j4GEw0KvWuIVCr5l+xKXHQbantU7wJYQcAt7j3QOC4Ca+qZxaM26OZrbWzP1PBAGc9kI=
X-Received: by 10.55.122.194 with SMTP id v185mr63313249qkc.41.1517630268962; Fri, 02 Feb 2018 19:57:48 -0800 (PST)
MIME-Version: 1.0
Received: by 10.200.63.243 with HTTP; Fri, 2 Feb 2018 19:57:28 -0800 (PST)
In-Reply-To: <CAATAM3ED7B3wEJFmaZA_MaOtN5EGKSGFmusAf-Mg5hX35D2r6A@mail.gmail.com>
References: <CAATAM3ED7B3wEJFmaZA_MaOtN5EGKSGFmusAf-Mg5hX35D2r6A@mail.gmail.com>
From: carl hansen <carlhansen1234@gmail.com>
Date: Sat, 03 Feb 2018 03:57:00 -0000
Message-ID: <CAHEkXCQkg2HpJB1qv7EdwSmYNdCR_=g4JRtcmMyv5PwoOR=bfA@mail.gmail.com>
Subject: Re: gdb 8.x - g++ 7.x compatibility
To: Roman Popov <ripopov@gmail.com>
Cc: gdb@sourceware.org, GCC Development <gcc@gcc.gnu.org>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-SW-Source: 2018-02/txt/msg00009.txt.bz2

On Fri, Feb 2, 2018 at 7:17 PM, Roman Popov <ripopov@gmail.com> wrote:

> Hello,
> I'm trying to switch from g++ 5.4 to g++ 7.2.
> GDB 8.0.1 however does not understand RTTI generated by g++7.2, so my
> Python scripts for GDB are not working.
>
> Here is a code example:
>
> struct base {  virtual ~base(){}  };
>
> template< int IVAL, unsigned UVAL, unsigned long long ULLVAL>
> struct derived : base {
>     int x =3D IVAL + + UVAL + ULLVAL;
> };
>
> int main()
> {
>     base * o =3D new derived<1,2,3>{};
>     return 0;
> }
>
> When compiled with g++5.4 I can read value of x in debugger.
> When compiled with g++7.2   gdb reports:
> warning: RTTI symbol not found for class 'derived<1, 2u, 3ull>'
>
> Problem here is that type name saved in debug information is
> *derived<1, 2, 3>*, not *derived<1, 2u, 3ull>*
>
> Do you plan to fix this anytime soon?
>
> Thanks,
> Roman
>
=E2=80=8Btry  gdb 8.1 and gcc 7.3 and iterate.
see if fixed, repost.=E2=80=8B