60 lines
2.3 KiB
C
60 lines
2.3 KiB
C
/* Definitions for XScale architectures using ELF
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Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
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Contributed by Catherine Moore <clm@cygnus.com>
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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 it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 2, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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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 this program; 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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/* Run-time Target Specification. */
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#ifndef TARGET_VERSION
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#define TARGET_VERSION fputs (" (XScale/ELF non-Linux)", stderr);
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#endif
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#ifndef SUBTARGET_CPU_DEFAULT
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#define SUBTARGET_CPU_DEFAULT TARGET_CPU_xscale
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#endif
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/* Note - there are three possible -mfpu= arguments that can be passed to
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the assembler:
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-mfpu=softvfp This is the default. It indicates thats doubles are
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stored in a format compatible with the VFP
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specification. This is the newer double format, whereby
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the endian-ness of the doubles matches the endian-ness
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of the memory architecture.
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-mfpu=fpa This is when -mhard-float is specified.
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[It is not known if any XScale's have been made with
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hardware floating point support, but nevertheless this
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is what happens].
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-mfpu=softfpa This is when -msoft-float is specified.
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This is the normal behavior of other arm configurations,
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which for backwards compatibility purposes default to
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supporting the old FPA format which was always big
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endian, regardless of the endian-ness of the memory
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system. */
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#define SUBTARGET_EXTRA_ASM_SPEC "%{!mcpu=*:-mcpu=xscale} \
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%{mhard-float:-mfpu=fpa} \
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%{!mhard-float: %{msoft-float:-mfpu=softfpa;:-mfpu=softvfp}}"
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#ifndef MULTILIB_DEFAULTS
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#define MULTILIB_DEFAULTS \
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{ "mlittle-endian", "mno-thumb-interwork", "marm", "msoft-float" }
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#endif
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