This is the mail archive of the libstdc++@gcc.gnu.org mailing list for the libstdc++ project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

[m68k] Add m68k-uclinux-uclibc target

From: Bernardo Innocenti <bernie at develer dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>, libstdc++ at gcc dot gnu dot org, config-patches at gnu dot org
Cc: Richard Henderson <rth at redhat dot com>, hch at infradead dot org, schwab at suse dot de, hp at bitrange dot com
Date: Mon, 22 Sep 2003 17:19:11 +0200
Subject: [m68k] Add m68k-uclinux-uclibc target
Organization: Develer S.r.l.


This patch adds the target definition for uClinux to config.sub,
GCC and libstdc++.

Unlike the official, 2.95.x based toolchain, uClinux support for GCC 3.4
uses the "m68k-uclinux-uclibc" target tuple instead of abusing of the
existing m68k-elf target.

The script for building the full uClinux toolchain ensures backwards
compatibility by creating a few soft-links.

This patch adds the uClinux target definition to GCC and libstdc++.

Unlike the official, 2.95.x based toolchain, uClinux support for GCC 3.4
uses the "m68k-uclinux-uclibc" target tuple instead of abusing of the
existing m68k-elf target.

The script for building the full uClinux toolchain ensures backwards
compatibility by creating a few soft-links.

top-level:

2003-09-22 Bernardo Innocenti <bernie@develer.com>

	* config.sub (m68k-unknown-linux-uclibc, m68k-unknown-uclinux-uclibc):
	New targets.

GCC:

2003-09-22 Bernardo Innocenti <bernie@develer.com>

	* config/m68k/t-uclinux: New target Makefile fragment.
	* config/m68k/uclinux.h: New target macro file.
	* config.gcc (m68k-*-uclinux): New target definition.

libstdc++:

2003-09-22 Bernardo Innocenti <bernie@develer.com>

	* crossconfig.m4 (*-uclinux*): New target.
	* configure: Regenerate (well, not really).

diff -Nru gcc-3.4.orig/config.sub gcc-3.4/config.sub --- gcc-3.4.orig/config.sub 2003-06-14 16:08:09.000000000 +0200 +++ gcc-3.4/config.sub 2003-09-19 19:36:58.000000000 +0200 @@ -118,7 +118,7 @@ # Here we must recognize all the valid KERNEL-OS combinations. maybe_os=`echo $1 | sed 's/^$.*$-$[^-]*-[^-]*$$/\2/'` case $maybe_os in - nto-qnx* | linux-gnu* | freebsd*-gnu* | netbsd*-gnu* | storm-chaos* | os2-emx* | rtmk-nova*) + nto-qnx* | linux-gnu* | linux-uclibc* | freebsd*-gnu* | netbsd*-gnu* | storm-chaos* | os2-emx* | rtmk-nova*) os=-$maybe_os basic_machine=`echo $1 | sed 's/^$.*$-$[^-]*-[^-]*$$/\1/'` ;; @@ -1126,12 +1126,12 @@ | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \ | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* \ | -chorusos* | -chorusrdb* \ - | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \ - | -mingw32* | -linux-gnu* | -uxpv* | -beos* | -mpeix* | -udk* \ - | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \ - | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \ - | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \ - | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \ + | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* | -mingw32* \ + | -linux-gnu* | -linux-uclibc* | -uclinux-uclibc* | -uxpv* | -beos* \ + | -mpeix* | -udk* | -interix* | -uwin* | -mks* | -rhapsody* \ + | -darwin* | -opened* | -openstep* | -oskit* | -conix* | -pw32* \ + | -nonstopux* | -storm-chaos* | -tops10* | -tenex* | -tops20* \ + | -its* | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \ | -morphos* | -superux* | -rtmk* | -rtmk-nova* | -windiss* \ | -powermax* | -dnix* | -nx6 | -nx7) # Remember, each alternative MUST END IN *, to match a version number. diff -Nru gcc-3.4.orig/gcc/config.gcc gcc-3.4/gcc/config.gcc --- gcc-3.4.orig/gcc/config.gcc 2003-08-08 23:13:37.000000000 +0200 +++ gcc-3.4/gcc/config.gcc 2003-08-19 21:36:32.000000000 +0200 @@ -1289,6 +1289,11 @@ tmake_file=t-svr4 extra_parts="crtbegin.o crtend.o" ;; +m68k-*-uclinux*) # Motorola m68k/ColdFire running uClinux with uClibc + tm_file="m68k/m68k.h m68k/m68k-none.h m68k/m68kelf.h dbxelf.h elfos.h m68k/uclinux.h" + tm_defines="MOTOROLA USE_GAS" + tmake_file=m68k/t-uclinux + ;; m68k-*-linux*) # Motorola m68k's running GNU/Linux # with ELF format using glibc 2 # aka the GNU/Linux C library 6. diff -Nru gcc-3.4.orig/gcc/config/m68k/t-uclinux gcc-3.4/gcc/config/m68k/t-uclinux --- gcc-3.4.orig/gcc/config/m68k/t-uclinux 1970-01-01 01:00:00.000000000 +0100 +++ gcc-3.4/gcc/config/m68k/t-uclinux 2003-08-19 21:29:30.000000000 +0200 @@ -0,0 +1,27 @@ +# Don't run fixproto +STMP_FIXPROTO = + +LIB1ASMSRC = m68k/lb1sf68.asm +LIB1ASMFUNCS = _mulsi3 _udivsi3 _divsi3 _umodsi3 _modsi3 \ + _double _float _floatex \ + _eqdf2 _nedf2 _gtdf2 _gedf2 _ltdf2 _ledf2 \ + _eqsf2 _nesf2 _gtsf2 _gesf2 _ltsf2 _lesf2 + +LIB2FUNCS_EXTRA = fpgnulib.c xfgnulib.c + +fpgnulib.c: $(srcdir)/config/m68k/fpgnulib.c + cp $(srcdir)/config/m68k/fpgnulib.c fpgnulib.c +xfgnulib.c: $(srcdir)/config/m68k/fpgnulib.c + echo '#define EXTFLOAT' > xfgnulib.c + cat $(srcdir)/config/m68k/fpgnulib.c >> xfgnulib.c + +MULTILIB_OPTIONS = m68000/m5200/m5206e/m528x/m5307/m5407/mcpu32 msep-data/mid-shared-library +MULTILIB_DIRNAMES = +MULTILIB_MATCHES = m68000=mc68000 m68000=m68302 mcpu32=m68332 m5206e=m5272 +MULTILIB_EXCEPTIONS = m68000/msep-data* m68000/mid-shared-library* msep-data* mid-shared-library* + +LIBGCC = stmp-multilib +INSTALL_LIBGCC = install-multilib + +# We don't use crtbegin.o and crtend.o +EXTRA_PARTS= diff -Nru gcc-3.4.orig/gcc/config/m68k/uclinux.h gcc-3.4/gcc/config/m68k/uclinux.h --- gcc-3.4.orig/gcc/config/m68k/uclinux.h 1970-01-01 01:00:00.000000000 +0100 +++ gcc-3.4/gcc/config/m68k/uclinux.h 2003-08-20 19:26:09.000000000 +0200 @@ -0,0 +1,63 @@ +/* Definitions of target machine for GNU compiler. m68k/ColdFire based + uClinux system using ELF objects with special linker post-processing + to produce FLAT executables. + + Copyright (C) 2003 Free Software Foundation, Inc. + +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 2, 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 GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + + +/* Undo the definition of STARTFILE_SPEC from m68kelf.h so we'll + pick the default from gcc.c (just link crt0.o from multilib dir). */ +#undef STARTFILE_SPEC + +/* Override the default LIB_SPEC from gcc.c. We don't currently support + profiling, or libg.a. */ +#undef LIB_SPEC +#define LIB_SPEC "\ +%{mid-shared-library:-R libc.gdb%s} -lc \ +" + +/* we don't want a .eh_frame section. */ +#define EH_FRAME_IN_DATA_SECTION + +/* ??? Quick hack to get constructors working. Make this look more like a + COFF target, so the existing dejagnu/libgloss support works. A better + solution would be to make the necessary dejagnu and libgloss changes so + that we can use normal the ELF constructor mechanism. */ +#undef INIT_SECTION_ASM_OP +#undef FINI_SECTION_ASM_OP +#undef ENDFILE_SPEC +#define ENDFILE_SPEC "" + +/* Bring in standard linux defines */ +#undef TARGET_OS_CPP_BUILTINS +#define TARGET_OS_CPP_BUILTINS() \ + do \ + { \ + builtin_define_std ("mc68000"); \ + builtin_define ("__uClinux__"); \ + builtin_define_std ("linux"); \ + builtin_define_std ("unix"); \ + builtin_define ("__gnu_linux__"); \ + builtin_assert ("system=posix"); \ + if (TARGET_ID_SHARED_LIBRARY) \ + builtin_define ("__ID_SHARED_LIBRARY__"); \ + } \ + while (0) + diff -Nru gcc-3.4.orig/libstdc++-v3/crossconfig.m4 gcc-3.4/libstdc++-v3/crossconfig.m4 --- gcc-3.4.orig/libstdc++-v3/crossconfig.m4 2003-08-21 02:34:59.000000000 +0200 +++ gcc-3.4/libstdc++-v3/crossconfig.m4 2003-08-19 00:18:24.000000000 +0200 @@ -125,7 +125,7 @@ ;; esac ;; - *-linux*) + *-linux* | *-uclinux*) #os_include_dir="os/gnu-linux" AC_CHECK_HEADERS([nan.h ieeefp.h endian.h sys/isa_defs.h \ machine/endian.h machine/param.h sys/machine.h sys/types.h \ diff -Nru gcc-3.4.orig/libstdc++-v3/configure gcc-3.4/libstdc++-v3/configure --- gcc-3.4.orig/libstdc++-v3/configure 2003-08-21 02:34:59.000000000 +0200 +++ gcc-3.4/libstdc++-v3/configure 2003-08-19 00:19:25.000000000 +0200 @@ -50539,7 +50539,7 @@ ;; esac ;; - *-linux*) + *-linux* | *-uclinux*) #os_include_dir="os/gnu-linux"


--
 // Bernardo Innocenti - Develer S.r.l., R&D dept.
\X/  http://www.develer.com/

Please don't send Word attachments - http://www.gnu.org/philosophy/no-word-attachments.html

Follow-Ups:
- Re: [m68k] Add m68k-uclinux-uclibc target
  - From: Christoph Hellwig
- ping: [m68k] Add m68k-uclinux-uclibc target
  - From: Bernardo Innocenti

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]