From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4887C35249 for ; Wed, 5 Feb 2020 09:42:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B95BF217BA for ; Wed, 5 Feb 2020 09:42:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Yhe8w0Wa" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728130AbgBEJmA (ORCPT ); Wed, 5 Feb 2020 04:42:00 -0500 Received: from mail-ed1-f66.google.com ([209.85.208.66]:35223 "EHLO mail-ed1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727068AbgBEJl7 (ORCPT ); Wed, 5 Feb 2020 04:41:59 -0500 Received: by mail-ed1-f66.google.com with SMTP id f8so1597145edv.2; Wed, 05 Feb 2020 01:41:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=xyH/6xAva+KFzsDU4kRRSVPMZlagXAYWpnfMiSTYxro=; b=Yhe8w0Watz8h/Ktj3n0eudAKT3QTNqepRLvSDHoDy2cneZ9OiHnokr20GSFClaw//G fAscjiiXb2BJdQzt+keYZxIW6N1nJgOsvMS+NMWwVSkD/smUKBW2ofUGkZGsVufBoBrJ wjRq0bGrMsYtry7DvqOXm2JE8d3YuLkScFjxjA5qOaxphunxEOry4t11FQ4eiz/OcIpm CUzJrNiugt0rwn2v1js+O1EncWz3yXN24rAFkUsGX4NxMi6vRNeiahHOSE5aAL4ZdJOo /qD/36/6bgX0a1EwSf43Z+orvP7qI9AGfl4VxXqtmdPqHJqPd93EQPt9st6wbxRImhn6 UTOw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=xyH/6xAva+KFzsDU4kRRSVPMZlagXAYWpnfMiSTYxro=; b=esN1PGPRTDV8LiGAlrdwngUYtxX8j75WHqtkNPxNL7xEaSOBv2/Sso/t3MIAqfEHfd xuAkotapyx/DLv5CrlkjbRFT72gttV+VBi24Vt0uAA3uN5Q3HMW2bbMcSgoUKhU5ONFA WVbS7PWL3FaO4oh0Be4aHyhiG/uLCGhDKI83tpHRtnsNyJiz6Vm2O87kyCN458drJFx/ XxdumiS18zlmFC/D+WgA84itOnaErQv/TmsXZpgic6QD5EizeMfgbQVVrF9EFwQufOw5 dOP39A1oRV+Ml1fFAQFRLJ3cPCN+0S7ytj2Sz/AfpIHZuOto3zcW5whfCSdy9jt+eBfV 2CkQ== X-Gm-Message-State: APjAAAVapLLBQTRoSAWkaV3qN2rYiHyjls1b8Uh3yDxvXc+Cvf/qJQD+ 8zX/lIDQKysy1SOyYF6wLwXYTkY3a0g2uDxjnvY= X-Google-Smtp-Source: APXvYqxQlrWAviHpx/RxvSc+x27TSYutaYAi1f+x+iFBmAxTIBgD7uXWaTzjGyGXWLrmJO1DvOz8vfV7FXFYJxtR1Vo= X-Received: by 2002:a17:906:70f:: with SMTP id y15mr30316411ejb.44.1580895717251; Wed, 05 Feb 2020 01:41:57 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Anatoly Pugachev Date: Wed, 5 Feb 2020 12:41:46 +0300 Message-ID: Subject: Re: [sparc64] unable to build kernel after bbfceba15f8 / "kdb: Get rid of confusing diag msg from "rd" if current task has no regs" To: Doug Anderson Cc: Sparc kernel list , Linux Kernel list , Daniel Thompson Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 5, 2020 at 1:13 AM Doug Anderson wrote: > > Hi, > > On Tue, Feb 4, 2020 at 1:14 PM Anatoly Pugachev wrot= e: > > > > Hello! > > > > After (bisected) bbfceba15f8d1260c328a254efc2b3f2deae4904 got > > mainline, i'm unable to build kernel with the following messages: > > > > ~/linux-2.6$ make -j olddefconfig; make kernel/debug/kdb/ > > scripts/kconfig/conf --olddefconfig Kconfig > > # > > # No change to .config > > # > > CALL scripts/atomic/check-atomics.sh > > CALL scripts/checksyscalls.sh > > :1511:2: warning: #warning syscall clone3 not implemented [-Wcpp= ] > > CC kernel/debug/kdb/kdb_main.o > > kernel/debug/kdb/kdb_main.c: In function =E2=80=98kdb_rd=E2=80=99: > > kernel/debug/kdb/kdb_main.c:1857:11: error: =E2=80=98dbg_reg_def=E2=80= =99 undeclared > > (first use in this function); did you mean =E2=80=98dbg_reg_def_t=E2=80= =99? > > 1857 | rsize =3D dbg_reg_def[i].size * 2; > > | ^~~~~~~~~~~ > > | dbg_reg_def_t > > kernel/debug/kdb/kdb_main.c:1857:11: note: each undeclared identifier > > is reported only once for each function it appears in > > kernel/debug/kdb/kdb_main.c:1868:12: error: implicit declaration of > > function =E2=80=98dbg_get_reg=E2=80=99 [-Werror=3Dimplicit-function-dec= laration] > > 1868 | rname =3D dbg_get_reg(i, ®8, kdb_current_regs); > > | ^~~~~~~~~~~ > > kernel/debug/kdb/kdb_main.c:1868:10: warning: assignment to =E2=80=98ch= ar *=E2=80=99 > > from =E2=80=98int=E2=80=99 makes pointer from integer without a cast > > [-Wint-conversion] > > 1868 | rname =3D dbg_get_reg(i, ®8, kdb_current_regs); > > | ^ > > kernel/debug/kdb/kdb_main.c:1874:10: warning: assignment to =E2=80=98ch= ar *=E2=80=99 > > from =E2=80=98int=E2=80=99 makes pointer from integer without a cast > > [-Wint-conversion] > > 1874 | rname =3D dbg_get_reg(i, ®16, kdb_current_regs); > > | ^ > > kernel/debug/kdb/kdb_main.c:1880:10: warning: assignment to =E2=80=98ch= ar *=E2=80=99 > > from =E2=80=98int=E2=80=99 makes pointer from integer without a cast > > [-Wint-conversion] > > 1880 | rname =3D dbg_get_reg(i, ®32, kdb_current_regs); > > | ^ > > kernel/debug/kdb/kdb_main.c:1886:10: warning: assignment to =E2=80=98ch= ar *=E2=80=99 > > from =E2=80=98int=E2=80=99 makes pointer from integer without a cast > > [-Wint-conversion] > > 1886 | rname =3D dbg_get_reg(i, ®64, kdb_current_regs); > > | ^ > > cc1: some warnings being treated as errors > > make[3]: *** [scripts/Makefile.build:266: kernel/debug/kdb/kdb_main.o] = Error 1 > > make[2]: *** [scripts/Makefile.build:503: kernel/debug/kdb] Error 2 > > make[1]: *** [scripts/Makefile.build:503: kernel/debug] Error 2 > > make: *** [Makefile:1681: kernel] Error 2 > > > > > > reversing bbfceba15f8d with current git master branch - makes kernel > > compilable again. > > > > kernel config attached > > Argh. Sorry about this. :( I'm not setup with a sparc compiler, but > I've simulated your results on arm64 by just commenting out the > definition of "DBG_MAX_REG_NUM" in "arch/arm64/include/asm/kgdb.h". > Hopefully: > > https://lore.kernel.org/r/20200204141219.1.Ief3f3a7edbbd76165901b14813e90= 381c290786d@changeid > > ...will fix you? Fixes issue for me. Thank you.