Re: Remove some unused gcc/config/ headers and .opt files

[Richard Guenther <richard dot guenther at gmail dot com>]

On Sat, Feb 19, 2011 at 12:33 AM, Joseph S. Myers
<joseph@codesourcery.com> wrote:
> When going through all the gcc/config/ headers to check the specs
> there for options needing adding to .opt files, I noticed a header I
> thought might be unused. ?Some further checks showed that at least
> four gcc/config headers and at least one gcc/config .opt file are not
> used by any configuration in config.gcc. ?(The greps used were not a
> fully rigorous process for identifying whether a header is used, so
> there may be more.)
>
> This patch removes three unused headers (the correct fix for the
> fourth, i386/djgpp-stdint.h, is clearly to make the relevant
> configuration use it rather than removing the header) and one unused
> .opt file.
>
> Bootstrapped with no regressions on x86_64-unknown-linux-gnu. ?OK to
> commit?

Ok.

Thanks,
Richard.

> 2011-02-18 ?Joseph Myers ?<joseph@codesourcery.com>
>
> ? ? ? ?* config/i386/biarch32.h, config/i386/mach.h,
> ? ? ? ?config/rs6000/aix.opt, config/sh/superh64.h: Remove.
>
> Index: gcc/config/i386/biarch32.h
> ===================================================================
> --- gcc/config/i386/biarch32.h ?(revision 170272)
> +++ gcc/config/i386/biarch32.h ?(working copy)
> @@ -1,29 +0,0 @@
> -/* Make configure files to produce biarch compiler defaulting to 32bit mode.
> - ? This file must be included very first, while the OS specific file later
> - ? to overwrite otherwise wrong defaults.
> - ? Copyright (C) 2009 Free Software Foundation, Inc.
> - ? Contributed by Kai Tietz <kai.tietz@onevision.com>.
> -
> -This file is part of GCC.
> -
> -GCC is free software; you can redistribute it and/or modify
> -it under the terms of the GNU General Public License as published by
> -the Free Software Foundation; either version 3, or (at your option)
> -any later version.
> -
> -GCC is distributed in the hope that it will be useful,
> -but WITHOUT ANY WARRANTY; without even the implied warranty of
> -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ?See the
> -GNU General Public License for more details.
> -
> -Under Section 7 of GPL version 3, you are granted additional
> -permissions described in the GCC Runtime Library Exception, version
> -3.1, as published by the Free Software Foundation.
> -
> -You should have received a copy of the GNU General Public License and
> -a copy of the GCC Runtime Library Exception along with this program;
> -see the files COPYING3 and COPYING.RUNTIME respectively. ?If not, see
> -<http://www.gnu.org/licenses/>. ?*/
> -
> -#define TARGET_64BIT_DEFAULT 0
> -#define TARGET_BI_ARCH 1
> Index: gcc/config/i386/mach.h
> ===================================================================
> --- gcc/config/i386/mach.h ? ? ?(revision 170272)
> +++ gcc/config/i386/mach.h ? ? ?(working copy)
> @@ -1,44 +0,0 @@
> -/* Configuration for an i386 running Mach as the target machine.
> -
> -Copyright (C) 1992, 1993, 1997, 1998, 2000, 2001,
> -2002 Free Software Foundation, Inc.
> -
> -This file is part of GCC.
> -
> -GCC is free software; you can redistribute it and/or modify it under
> -the terms of the GNU General Public License as published by the Free
> -Software Foundation; either version 3, or (at your option) any later
> -version.
> -
> -GCC is distributed in the hope that it will be useful, but WITHOUT ANY
> -WARRANTY; without even the implied warranty of MERCHANTABILITY or
> -FITNESS FOR A PARTICULAR PURPOSE. ?See the GNU General Public License
> -for more details.
> -
> -Under Section 7 of GPL version 3, you are granted additional
> -permissions described in the GCC Runtime Library Exception, version
> -3.1, as published by the Free Software Foundation.
> -
> -You should have received a copy of the GNU General Public License and
> -a copy of the GCC Runtime Library Exception along with this program;
> -see the files COPYING3 and COPYING.RUNTIME respectively. ?If not, see
> -<http://www.gnu.org/licenses/>. ?*/
> -
> -#define TARGET_VERSION fprintf (stderr, " (80386, Mach)");
> -
> -#define TARGET_OS_CPP_BUILTINS() ? ? ? ? ? ? ? \
> - ?do ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? \
> - ? ?{ ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?\
> - ? ? ? builtin_define_std ("unix"); ? ? ? ? ? ?\
> - ? ? ? builtin_define_std ("MACH"); ? ? ? ? ? ?\
> - ? ? ? builtin_assert ("system=unix"); ? ? ? ? \
> - ? ? ? builtin_assert ("system=mach"); ? ? ? ? \
> - ? ?} ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?\
> - ?while (0)
> -
> -/* Specify extra dir to search for include files. ?*/
> -#define SYSTEM_INCLUDE_DIR "/usr/mach/include"
> -
> -/* Don't default to pcc-struct-return, because gcc is the only compiler, and
> - ? we want to retain compatibility with older gcc versions. ?*/
> -#define DEFAULT_PCC_STRUCT_RETURN 0
> Index: gcc/config/sh/superh64.h
> ===================================================================
> --- gcc/config/sh/superh64.h ? ?(revision 170272)
> +++ gcc/config/sh/superh64.h ? ?(working copy)
> @@ -1,49 +0,0 @@
> -/*
> - Definitions of target machine for gcc for SuperH using target sh-superh-elf,
> -
> - ? Copyright 2000, 2007 Free Software Foundation, Inc.
> - ? Contributed by Alexandre Oliva <aoliva@redhat.com>
> - ? Modified for SuperH by Richard Shann
> -
> -This file is part of GNU CC.
> -
> -GNU CC is free software; you can redistribute it and/or modify
> -it under the terms of the GNU General Public License as published by
> -the Free Software Foundation; either version 3, or (at your option)
> -any later version.
> -
> -GNU CC is distributed in the hope that it will be useful,
> -but WITHOUT ANY WARRANTY; without even the implied warranty of
> -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. ?See the
> -GNU General Public License for more details.
> -
> -You should have received a copy of the GNU General Public License
> -along with GCC; see the file COPYING3. ?If not see
> -<http://www.gnu.org/licenses/>. ?*/
> -
> -/* This header file is used when the vendor name is set to 'superh'.
> - ? It configures the compiler for SH5 only and switches the default
> - ? endianess to little.
> - ? This file is intended to override sh.h, superh.h and sh64.h (which
> - ? should have been included in that order) */
> -
> -
> -#ifndef _SUPERH_H
> - #error superh64.h should not be used without superh.h
> -#endif
> -
> -/* We override TARGET_PROCESSOR_SWITCHES in order to remove all the unrequired cpu options */
> -#undef TARGET_PROCESSOR_SWITCHES
> -#define TARGET_PROCESSOR_SWITCHES ? ? ? ? ? ? ? ? ? ? ?\
> - ?{"5-64media", ? ? ? ?TARGET_NONE, "" }, ? ? ? ? ? ? ?\
> - ?{"5-64media", SELECT_SH5_64, "SH5 64-bit SHmedia code" }, \
> - ?{"5-64media-nofpu", TARGET_NONE, "" }, ? ? ? \
> - ?{"5-64media-nofpu", SELECT_SH5_64_NOFPU, "SH5 64-bit FPU-less SHmedia code" }, \
> - ?{"5-32media", ? ? ? ?TARGET_NONE, "" }, ? ? ? ? ? ? ?\
> - ?{"5-32media", SELECT_SH5_32, "SH5 32-bit SHmedia code" }, \
> - ?{"5-32media-nofpu", TARGET_NONE, "" }, ? ? ? \
> - ?{"5-32media-nofpu", SELECT_SH5_32_NOFPU, "SH5 32-bit FPU-less SHmedia code" }, \
> - ?{"5-compact", ? ? ? ?TARGET_NONE, "" }, ? ? ? ? ? ? ?\
> - ?{"5-compact", ? ? ? ?SELECT_SH5_COMPACT, "SH5 SHcompact code" }, \
> - ?{"5-compact-nofpu", TARGET_NONE, "" }, ? ? ? \
> - ?{"5-compact-nofpu", SELECT_SH5_COMPACT_NOFPU, "SH5 FPU-less SHcompact code" }
> Index: gcc/config/rs6000/aix.opt
> ===================================================================
> --- gcc/config/rs6000/aix.opt ? (revision 170272)
> +++ gcc/config/rs6000/aix.opt ? (working copy)
> @@ -1,24 +0,0 @@
> -; AIX options.
> -;
> -; Copyright (C) 2005, 2007, 2010 Free Software Foundation, Inc.
> -; Contributed by Aldy Hernandez <aldy@quesejoda.com>.
> -;
> -; This file is part of GCC.
> -;
> -; GCC is free software; you can redistribute it and/or modify it under
> -; the terms of the GNU General Public License as published by the Free
> -; Software Foundation; either version 3, or (at your option) any later
> -; version.
> -;
> -; GCC is distributed in the hope that it will be useful, but WITHOUT
> -; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
> -; or FITNESS FOR A PARTICULAR PURPOSE. ?See the GNU General Public
> -; License for more details.
> -;
> -; You should have received a copy of the GNU General Public License
> -; along with GCC; see the file COPYING3. ?If not see
> -; <http://www.gnu.org/licenses/>.
> -
> -mxl-compat
> -Target Var(has_xl_compat_option) Save
> -Conform more closely to IBM XLC semantics
>
> --
> Joseph S. Myers
> joseph@codesourcery.com
>