/* Definitions for XScale architectures using ELF
|
/* Definitions for XScale architectures using ELF
|
Copyright (C) 1999, 2000, 2001, 2007 Free Software Foundation, Inc.
|
Copyright (C) 1999, 2000, 2001, 2007 Free Software Foundation, Inc.
|
Contributed by Catherine Moore <clm@cygnus.com>
|
Contributed by Catherine Moore <clm@cygnus.com>
|
|
|
This file is part of GCC.
|
This file is part of GCC.
|
|
|
GCC is free software; you can redistribute it and/or modify it
|
GCC is free software; you can redistribute it and/or modify it
|
under the terms of the GNU General Public License as published
|
under the terms of the GNU General Public License as published
|
by the Free Software Foundation; either version 3, or (at your
|
by the Free Software Foundation; either version 3, or (at your
|
option) any later version.
|
option) any later version.
|
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT
|
GCC is distributed in the hope that it will be useful, but WITHOUT
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
License for more details.
|
License for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with GCC; see the file COPYING3. If not see
|
along with GCC; see the file COPYING3. If not see
|
<http://www.gnu.org/licenses/>. */
|
<http://www.gnu.org/licenses/>. */
|
|
|
/* Run-time Target Specification. */
|
/* Run-time Target Specification. */
|
#ifndef TARGET_VERSION
|
#ifndef TARGET_VERSION
|
#define TARGET_VERSION fputs (" (XScale/ELF non-Linux)", stderr);
|
#define TARGET_VERSION fputs (" (XScale/ELF non-Linux)", stderr);
|
#endif
|
#endif
|
|
|
#ifndef SUBTARGET_CPU_DEFAULT
|
#ifndef SUBTARGET_CPU_DEFAULT
|
#define SUBTARGET_CPU_DEFAULT TARGET_CPU_xscale
|
#define SUBTARGET_CPU_DEFAULT TARGET_CPU_xscale
|
#endif
|
#endif
|
|
|
/* Note - there are three possible -mfpu= arguments that can be passed to
|
/* Note - there are three possible -mfpu= arguments that can be passed to
|
the assembler:
|
the assembler:
|
|
|
-mfpu=softvfp This is the default. It indicates thats doubles are
|
-mfpu=softvfp This is the default. It indicates thats doubles are
|
stored in a format compatible with the VFP
|
stored in a format compatible with the VFP
|
specification. This is the newer double format, whereby
|
specification. This is the newer double format, whereby
|
the endian-ness of the doubles matches the endian-ness
|
the endian-ness of the doubles matches the endian-ness
|
of the memory architecture.
|
of the memory architecture.
|
|
|
-mfpu=fpa This is when -mhard-float is specified.
|
-mfpu=fpa This is when -mhard-float is specified.
|
[It is not known if any XScale's have been made with
|
[It is not known if any XScale's have been made with
|
hardware floating point support, but nevertheless this
|
hardware floating point support, but nevertheless this
|
is what happens].
|
is what happens].
|
|
|
-mfpu=softfpa This is when -msoft-float is specified.
|
-mfpu=softfpa This is when -msoft-float is specified.
|
This is the normal behavior of other arm configurations,
|
This is the normal behavior of other arm configurations,
|
which for backwards compatibility purposes default to
|
which for backwards compatibility purposes default to
|
supporting the old FPA format which was always big
|
supporting the old FPA format which was always big
|
endian, regardless of the endian-ness of the memory
|
endian, regardless of the endian-ness of the memory
|
system. */
|
system. */
|
|
|
#define SUBTARGET_EXTRA_ASM_SPEC "%{!mcpu=*:-mcpu=xscale} \
|
#define SUBTARGET_EXTRA_ASM_SPEC "%{!mcpu=*:-mcpu=xscale} \
|
%{mhard-float:-mfpu=fpa} \
|
%{mhard-float:-mfpu=fpa} \
|
%{!mhard-float: %{msoft-float:-mfpu=softfpa;:-mfpu=softvfp}}"
|
%{!mhard-float: %{msoft-float:-mfpu=softfpa;:-mfpu=softvfp}}"
|
|
|
#ifndef MULTILIB_DEFAULTS
|
#ifndef MULTILIB_DEFAULTS
|
#define MULTILIB_DEFAULTS \
|
#define MULTILIB_DEFAULTS \
|
{ "mlittle-endian", "mno-thumb-interwork", "marm", "msoft-float" }
|
{ "mlittle-endian", "mno-thumb-interwork", "marm", "msoft-float" }
|
#endif
|
#endif
|
|
|
