[{"id":3687113,"web_url":"http://patchwork.ozlabs.org/comment/3687113/","msgid":"","list_archive_url":null,"date":"2026-05-06T14:21:45","subject":"Re: [PATCH v2 1/6] Remove HAVE_GNU_AS","submitter":{"id":4375,"url":"http://patchwork.ozlabs.org/api/people/4375/","name":"David Edelsohn","email":"dje.gcc@gmail.com"},"content":"On Wed, May 6, 2026 at 4:00 AM Rainer Orth \nwrote:\n\n> Hi David,\n>\n> >>> >> * AIX: native as and ld\n> >>> >\n> >>> > AIX supports both native as/ld and GNU as/ld. GNU ld is more common\n> than\n> >>> > GNU as.\n> >>> > It would have been nice to handle both, like Solaris, but I\n> understand\n> >>> that\n> >>> > supporting both is more\n> >>> > of a hassle.\n> >>>\n> >>> I missed that in the AIX install.texi section. Maybe it would be good\n> >>> to weed that out a bit.\n> >>>\n> >>> Anyway, handling those cases isn't really hard: just like the\n> >>> solaris_as/solaris_ld handling in gcc/configure.ac, and hpux_ld in\n> the v2\n> >>>\n> >>> build: Remove $gnu_ld\n> >>> https://gcc.gnu.org/pipermail/gcc-patches/2026-May/715430.html\n> >>>\n> >>> patch one can just check $gcc_cv_as/$gcc_cv_ld for the output of the\n> >>> native commands, assuming gas/gld otherwise. Depending on that, one\n> >>> would define AIX_{AS,LD} just like SOLARIS_{AS,LD} and use that to\n> >>> restrict the ASM_V_SPEC redefinition to AIX as.\n> >>>\n> >>> It's quite trivial, actually. I could give it a try on cfarm119 (AIX\n> >>> 7.3) if you like.\n> >>>\n> >>\n> >> If you can handle both, that would be nicer, but I'm not going to make\n> >> that a requirement for the patch if you don't have time.\n> >\n> > fine. I'll go ahead with the patch as is for now, but handle the AIX\n> > as/ld as a follow-up. I have a similar patch for ASM_V_SPEC with gas on\n> > Solaris already done, to be installed after this series is in.\n>\n> this is the revised patch, handling both AIX and Solaris as. That's the\n> only change relative to v1.\n>\n> So the only part that needs approval is this rs6000/aix.h change.\n>\n> ---------------------------------------------------------------------------\n>\n> This patch removes or replaces the remaining uses of HAVE_GNU_AS:\n>\n> * gcc.cc (asm_options) has a sub-spec to map the gcc -v/-w/-I options to\n> their assembler equivalents. It is replaced by ASM_V_SPEC, defaulting\n> to the gas version. Non-gas configurations define their own versions.\n>\n> * Darwin has ASM_OPTIONS which is identical to the default ASM_V_SPEC\n> and can just be removed.\n>\n> * sol2.h currently handles -v in ASM_SPEC_BASE. This patch moves this\n> to an Solaris-as only version of ASM_V_SPEC. This also handles the\n> gcc -w -> as -n mapping. The spec doesn't pass on -I, though:\n> preprocessing .S files is handled by gcc itself, the -I option is only\n> used for gas' .include directive which as doesn't support. Solaris as\n> instead could handle preprocessing by passing the source through cpp\n> when the -P option is given. It also uses -D/-U/-I for that.\n>\n> * ia64/hpux.h guards AS_NEEDS_DASH_FOR_PIPED_INPUT with !HAVE_GNU_AS,\n> but according to install.texi ia64-*-hpux* requires gas so this can\n> just go.\n>\n> * nvptx/nvptx.h handles the mapping in ASM_SPEC. This is done in\n> ASM_V_SPEC now. The nvptx as has no equivalents of -w and -I.\n>\n> * AIX as only supports -v and -W, so rs6000/aix.h gets a matching\n> ASM_V_SPEC when as is in use.\n\n\n> Ok for trunk?\n>\n\nOkay.\n\nDavid\n\n\n>\n> Rainer\n>\n> --\n>\n> -----------------------------------------------------------------------------\n> Rainer Orth, Center for Biotechnology, Bielefeld University\n>\n>\n> 2026-04-10 Rainer Orth \n>\n> gcc:\n> * gcc.cc (asm_options) [HAVE_GNU_AS]: Move to ...\n> (ASM_V_SPEC) ... this.\n> * config/nvptx/nvptx.h (ASM_SPEC): Rename to ASM_V_SPEC.\n> Adjust comment.\n> * config/rs6000/aix.h [HAVE_AIX_AS] (ASM_V_SPEC): Define.\n> * config/sol2.h (ASM_SPEC_BASE): Move -v handling to ...\n> [HAVE_SOLARIS_AS] (ASM_V_SPEC): ... this. Also handle -w.\n> * doc/tm.texi.in (Driver, ASM_V_SPEC): Document.\n> * doc/tm.texi: Regenerate.\n>\n> * config/darwin.h (ASM_OPTIONS): Remove.\n> * config/i386/darwin.h (ASM_SPEC): Remove ASM_OPTIONS.\n>\n> * config/ia64/hpux.h (AS_NEEDS_DASH_FOR_PIPED_INPUT): Remove.\n>\n> * configure.ac (HAVE_GNU_AS): Remove.\n> * configure: Regenerate.\n> * config.in: Regenerate.\n>\n>","headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","gcc-patches@gcc.gnu.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","gcc-patches@gcc.gnu.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=IQL/dVsL;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org\n (client-ip=38.145.34.32; helo=vm01.sourceware.org;\n envelope-from=gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org;\n receiver=patchwork.ozlabs.org)","sourceware.org;\n\tdkim=pass (2048-bit key,\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=IQL/dVsL","sourceware.org;\n dmarc=pass (p=none dis=none) header.from=gmail.com","sourceware.org; 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Wed, 06 May 2026\n 07:21:58 -0700 (PDT)","MIME-Version":"1.0","References":"\n \n \n \n \n \n ","In-Reply-To":"","From":"David Edelsohn ","Date":"Wed, 6 May 2026 10:21:45 -0400","X-Gm-Features":"AVHnY4LBz8lNHIiB1c_TArtLEZ9C3uJoDm0rFzf1_k9nVBO1EbOB--EouGCFwaY","Message-ID":"\n ","Subject":"Re: [PATCH v2 1/6] Remove HAVE_GNU_AS","To":"Rainer Orth ","Cc":"Richard Biener , Alexandre Oliva ,\n gcc-patches@gcc.gnu.org,\n Iain Sandoe , John David Anglin ,\n Thomas Schwinge , Jakub Jelinek ","Content-Type":"multipart/alternative; boundary=\"000000000000efdf73065126e27d\"","X-BeenThere":"gcc-patches@gcc.gnu.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Gcc-patches mailing list ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"gcc-patches-bounces~incoming=patchwork.ozlabs.org@gcc.gnu.org"}}]