From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lj1-x230.google.com (mail-lj1-x230.google.com [IPv6:2a00:1450:4864:20::230]) by sourceware.org (Postfix) with ESMTPS id A69C33858020 for ; Tue, 25 Jul 2023 07:07:02 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org A69C33858020 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-lj1-x230.google.com with SMTP id 38308e7fff4ca-2b9ab1725bbso656561fa.0 for ; Tue, 25 Jul 2023 00:07:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1690268821; x=1690873621; h=content-transfer-encoding:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=TuDMhpffuu3i/jXGJNz2gFgO8wUr4wAFfiTDfHFtW+Y=; b=kFVi/z6bxBu99mwo7h92aQMK/THtOouMgJ6XQzw/z2oGeUO8hGQa2Od6oCjQq80mwd Wxuzb2YtJymRU7sI2ilwUI46XfiTaqW4ma+AZGr6Vy6MAInU39cAAw3BylBbalQVqTGm eRlArsgadXNwgjQezkf/EbYkodrieCi/iifrAtCrfq3R90TrAxh7fhv344U7dbVmMkf0 //9XTBFedzQ3LDw7H1/YF4Acdjvqwv+yhU3wQOd5hy7LP04z0A06947/Aa2xkKn5W7SL TYmNxjzj0YaJE5YSvQdSwLdcOXElE4cRNV0qnkIccPCnPYOhWCifIbw3CjgkV+OB4cTK vE4g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690268821; x=1690873621; h=content-transfer-encoding:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=TuDMhpffuu3i/jXGJNz2gFgO8wUr4wAFfiTDfHFtW+Y=; b=dy3wd2E/Q1fX4ajPn8aTOxWD/KxjBVWv4uRjE+ddAZV784USi235UTOV+WaEGhXBIO +cEM7xdjlkSHWB3IcFrrWCVxG0v8fQH1jLyQSEC0os21IYYHKAQ5feVhBJ6M3lefISdQ YyPabN7eHdBIl1NYA5rVohK5a5vz4CaJ3wikSdEw3q1HiAx2Z6vZ8QzBMGS8WpgLAD1x VVA4QBGrjXp8oNBOrsHr0bDd9fohWnkE7o56Gpl5kj4dsQ6k23YkvXWWaJ+j/hNmaMAk QdVlilTEmAQlNyA0EnYC1bQG6qMxa/jxQqOuDTZ6VnvNYzN6kzcqqv/Qp61jjnA79s7g l7YA== X-Gm-Message-State: ABy/qLbxpVwjC9Nz9M/vhbm30KRvPx/sG7L9XzEFDTS5S/b+fKOXMJFc +JJ5K2ylwoBogG9nXBWGgPBkRoSp9FQZeT67F2I= X-Google-Smtp-Source: APBJJlG6C42Etej36usgnWvY8PbjkTtOpf+7v9JLOn4gKaA4HSmvyfiy7rAZkSJJEOUKcIqX4h+36VtYMo8uRIeSWmY= X-Received: by 2002:a2e:818d:0:b0:2b9:a142:f397 with SMTP id e13-20020a2e818d000000b002b9a142f397mr724056ljg.20.1690268820749; Tue, 25 Jul 2023 00:07:00 -0700 (PDT) MIME-Version: 1.0 References: <20230723010645.1622083-1-apinski@marvell.com> <20230723010645.1622083-2-apinski@marvell.com> In-Reply-To: From: Richard Biener Date: Tue, 25 Jul 2023 09:06:18 +0200 Message-ID: Subject: Re: [PATCH 2/2] AARCH64: Turn off unwind tables for crtbeginT.o To: Richard Sandiford , Andrew Pinski via Gcc-patches , Andrew Pinski Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On Mon, Jul 24, 2023 at 5:56=E2=80=AFPM Richard Sandiford via Gcc-patches wrote: > > Andrew Pinski via Gcc-patches writes: > > The problem -fasynchronous-unwind-tables is on by default for aarch64 > > We need turn it off for crt*.o because it would make __EH_FRAME_BEGIN__= point > > to .eh_frame data from crtbeginT.o instead of the user-defined object > > during static linking. > > Could you go into more details? Which user-defined object do you mean? > > I notice alpha has: > > # When GAS-generated unwind tables are created, they get created > # after the __FRAME_END__ terminator, which causes an ld error. > CRTSTUFF_T_CFLAGS =3D -fno-unwind-tables > > which I guess was a separate problem. x86 has # crtend*.o cannot be compiled without -fno-asynchronous-unwind-tables, # because then __FRAME_END__ might not be the last thing in .eh_frame # section. > > Thanks, > Richard