/home/richard/patches/freescale/head-submission/uclinux-oldabi.clog
From-SVN: r120909
This commit is contained in:
Richard Sandiford
Richard Sandiford
parent
150524cd45
commit
4529dbf15f
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@ -1,3 +1,10 @@
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2007-01-18 Richard Sandiford <richard@codesourcery.com>
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* doc/install.texi: Document m68k-uclinuxoldabi.
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* config.gcc (m68k-*-uclinuxoldabi): New configuration.
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* config/m68k/uclinux-oldabi.h: New file, copied from
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config/m68k/uclinux.h.
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2007-01-18 Kaz Kojima <kkojima@rr.iij4u.or.jp>
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* config/m32r/m32r-protos.h (m32r_expand_epilogue): Declare it.
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@ -1510,7 +1510,18 @@ m68k*-*-openbsd*)
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# we need collect2 until our bug is fixed...
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use_collect2=yes
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;;
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m68k-*-uclinux*) # Motorola m68k/ColdFire running uClinux with uClibc
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m68k-*-uclinuxoldabi*) # Motorola m68k/ColdFire running uClinux
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# with uClibc, using the original
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# m68k-elf-based ABI
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default_m68k_cpu=68020
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tm_file="m68k/m68k.h m68k/m68k-none.h m68k/m68kelf.h dbxelf.h elfos.h m68k/uclinux-oldabi.h"
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tm_defines="${tm_defines} MOTOROLA USE_GAS"
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tmake_file=m68k/t-uclinux
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use_fixproto=no
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;;
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m68k-*-uclinux*) # Motorola m68k/ColdFire running uClinux
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# with uClibc, using the new GNU/Linux-style
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# ABI.
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default_m68k_cpu=68020
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tm_file="m68k/m68k.h m68k/m68k-none.h m68k/m68kelf.h dbxelf.h elfos.h m68k/uclinux.h"
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tm_defines="${tm_defines} MOTOROLA USE_GAS"
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@ -0,0 +1,65 @@
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/* Definitions of target machine for GCC. m68k/ColdFire based uClinux system
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using ELF objects with special linker post-processing to produce FLAT
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executables.
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Copyright (C) 2003 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to
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the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA. */
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/* Undo the definition of STARTFILE_SPEC from m68kelf.h so we'll
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pick the default from gcc.c (just link crt0.o from multilib dir). */
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#undef STARTFILE_SPEC
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/* Override the default LIB_SPEC from gcc.c. We don't currently support
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profiling, or libg.a. */
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#undef LIB_SPEC
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#define LIB_SPEC "\
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%{mid-shared-library:-R libc.gdb%s -elf2flt -shared-lib-id 0} -lc \
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"
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/* we don't want a .eh_frame section. */
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#define EH_FRAME_IN_DATA_SECTION
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/* ??? Quick hack to get constructors working. Make this look more like a
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COFF target, so the existing dejagnu/libgloss support works. A better
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solution would be to make the necessary dejagnu and libgloss changes so
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that we can use normal the ELF constructor mechanism. */
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#undef INIT_SECTION_ASM_OP
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#undef FINI_SECTION_ASM_OP
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#undef ENDFILE_SPEC
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#define ENDFILE_SPEC ""
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/* Bring in standard linux defines */
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#undef TARGET_OS_CPP_BUILTINS
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#define TARGET_OS_CPP_BUILTINS() \
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do \
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{ \
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builtin_define_std ("mc68000"); \
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builtin_define ("__uClinux__"); \
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builtin_define_std ("linux"); \
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builtin_define_std ("unix"); \
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builtin_define ("__gnu_linux__"); \
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builtin_assert ("system=linux"); \
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builtin_assert ("system=unix"); \
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builtin_assert ("system=posix"); \
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if (TARGET_ID_SHARED_LIBRARY) \
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builtin_define ("__ID_SHARED_LIBRARY__"); \
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} \
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while (0)
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@ -2429,6 +2429,8 @@ information are.
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@item
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@uref{#m68k-hp-hpux,,m68k-hp-hpux}
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@item
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@uref{#m68k-uclinux,,m68k-uclinux}
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@item
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@uref{#mips-x-x,,mips-*-*}
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@item
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@uref{#mips-sgi-irix5,,mips-sgi-irix5}
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@ -3429,6 +3431,9 @@ This @var{target} can either be a @option{-mcpu} argument or one of the
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following values: @samp{m68000}, @samp{m68010}, @samp{m68020}, @samp{m68030},
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@samp{m68040}, @samp{m68060}, @samp{m68020-40} and @samp{m68020-60}.
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@html
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<hr />
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@end html
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@heading @anchor{m68k-hp-hpux}m68k-hp-hpux
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HP 9000 series 300 or 400 running HP-UX@. HP-UX version 8.0 has a bug in
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the assembler that prevents compilation of GCC@. This
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@ -3479,6 +3484,17 @@ to look like:
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#!/bin/ksh
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@end smallexample
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@html
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<hr />
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@end html
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@heading @anchor{m68k-x-uclinux}m68k-*-uclinux
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GCC 4.3 changed the uClinux configuration so that it uses the
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@samp{m68k-linux-gnu} ABI rather than the @samp{m68k-elf} ABI.
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It also added improved support for C++ and flat shared libraries,
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both of which were ABI changes. However, you can still use the
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original ABI by configuring for @samp{m68k-uclinuxoldabi} or
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@samp{m68k-@var{vendor}-uclinuxoldabi}.
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@html
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<hr />
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@end html
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