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/* Definitions of target machine for GNU compiler. Sun 68000/68020 version.
Copyright (C) 1987, 1988, 1993, 1995, 1996, 1998, 1999
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. */
/* This comment is here to see if it will keep Sun's cpp from dying. */
/* If you do not need to generate floating point code for the optional
Sun FPA board, you can safely comment out the SUPPORT_SUN_FPA define
to gain a little speed and code size. */
#define SUPPORT_SUN_FPA
#include "m68k/m68k.h"
/* See m68k.h. 7 means 68020 with 68881. */
#ifndef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_BITFIELD|MASK_68881|MASK_68020)
#endif
/* Define __HAVE_FPA__ or __HAVE_68881__ in preprocessor,
according to the -m flags.
This will control the use of inline 68881 insns in certain macros.
Also inform the program which CPU this is for. */
#if TARGET_DEFAULT & MASK_68881
/* -m68881 is the default */
#define CPP_SPEC \
"%{!msoft-float:%{mfpa:-D__HAVE_FPA__ }%{!mfpa:-D__HAVE_68881__ }}\
%{m68000:-D__mc68010__}%{mc68000:-D__mc68010__}%{!mc68000:%{!m68000:-D__mc68020__}} \
%{!ansi:%{m68000:-Dmc68010}%{mc68000:-Dmc68010}%{!mc68000:%{!m68000:-Dmc68020}}}"
#else
/* -msoft-float is the default */
#define CPP_SPEC \
"%{m68881:-D__HAVE_68881__ }%{mfpa:-D__HAVE_FPA__ }\
%{m68000:-D__mc68010__}%{mc68000:-D__mc68010__}%{!mc68000:%{!m68000:-D__mc68020__}} \
%{!ansi:%{m68000:-Dmc68010}%{mc68000:-Dmc68010}%{!mc68000:%{!m68000:-Dmc68020}}}"
#endif
/* Prevent error on `-sun3' and `-target sun3' options. */
#define CC1_SPEC "%{sun3:} %{target:}"
#define PTRDIFF_TYPE "int"
/* We must override m68k.h. */
#undef WCHAR_TYPE
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE "short unsigned int"
#define WCHAR_TYPE_SIZE 16
/* These compiler options take an argument. We ignore -target for now. */
#define WORD_SWITCH_TAKES_ARG(STR) \
(DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \
|| !strcmp (STR, "target") || !strcmp (STR, "assert"))
/* -m68000 requires special flags to the assembler. */
#define ASM_SPEC \
"%{m68000:-mc68010}%{mc68000:-mc68010}%{!mc68000:%{!m68000:-mc68020}} \
%{fpic:-k} %{fPIC:-k} %{R} %{j} %{J} %{h} %{d2} %{keep-local-as-symbols:-L}"
/* Names to predefine in the preprocessor for this target machine. */
/* For a while, -D_CROSS_TARGET_ARCH=SUN3 was included here,
but it doesn't work, partly because SUN3 etc. aren't defined
(and shouldn't be). It seems that on a native compiler _CROSS_TARGET_ARCH
should not be defined. For cross compilers, let's do things as we
normally do in GCC. -- rms. */
#define CPP_PREDEFINES "-Dmc68000 -Dsun -Dunix -Asystem=unix -Asystem=bsd -Acpu=m68k -Amachine=m68k"
/* STARTFILE_SPEC to include sun floating point initialization
This is necessary (tr: Sun does it) for both the m68881 and the fpa
routines.
Note that includes knowledge of the default specs for gcc, ie. no
args translates to the same effect as -m68881
I'm not sure what would happen below if people gave contradictory
arguments (eg. -msoft-float -mfpa) */
#if TARGET_DEFAULT & MASK_FPA
/* -mfpa is the default */
#define STARTFILE_SPEC \
"%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}} \
%{m68881:Mcrt1.o%s} \
%{msoft-float:Fcrt1.o%s} \
%{!m68881:%{!msoft-float:Wcrt1.o%s}}"
#else
#if TARGET_DEFAULT & MASK_68881
/* -m68881 is the default */
#define STARTFILE_SPEC \
"%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}} \
%{mfpa:Wcrt1.o%s} \
%{msoft-float:Fcrt1.o%s} \
%{!mfpa:%{!msoft-float:Mcrt1.o%s}}"
#else
/* -msoft-float is the default */
#define STARTFILE_SPEC \
"%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}} \
%{m68881:Mcrt1.o%s} \
%{mfpa:Wcrt1.o%s} \
%{!m68881:%{!mfpa:Fcrt1.o%s}}"
#endif
#endif
/* Specify library to handle `-a' basic block profiling.
Control choice of libm.a (if user says -lm)
based on fp arith default and options. */
#if TARGET_DEFAULT & MASK_FPA
/* -mfpa is the default */
#define LIB_SPEC "%{g:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} \
%{g:-lg} \
%{msoft-float:-L/usr/lib/fsoft}%{m68881:-L/usr/lib/f68881}\
%{!msoft_float:%{!m68881:-L/usr/lib/ffpa}}"
#else
#if TARGET_DEFAULT & MASK_68881
/* -m68881 is the default */
#define LIB_SPEC "%{g:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} \
%{g:-lg} \
%{msoft-float:-L/usr/lib/fsoft}%{!msoft-float:%{!mfpa:-L/usr/lib/f68881}}\
%{mfpa:-L/usr/lib/ffpa}"
#else
/* -msoft-float is the default */
#define LIB_SPEC "%{g:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} \
%{g:-lg} \
%{!m68881:%{!mfpa:-L/usr/lib/fsoft}}%{m68881:-L/usr/lib/f68881}\
%{mfpa:-L/usr/lib/ffpa}"
#endif
#endif
/* Provide required defaults for linker -e and -d switches. */
#define LINK_SPEC \
"%{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp %{static:-Bstatic} %{assert*}"
/* Every structure or union's size must be a multiple of 2 bytes. */
#define STRUCTURE_SIZE_BOUNDARY 16
/* This is BSD, so it wants DBX format. */
#define DBX_DEBUGGING_INFO
/* Generate calls to memcpy, memcmp and memset. */
#define TARGET_MEM_FUNCTIONS
/* This is not a good idea. It prevents interoperation between
files compiled with -m68881 and those compiled with -msoft-float. */
#if 0
#define FUNCTION_VALUEX(MODE) \
gen_rtx_REG ((MODE), \
((TARGET_68881 \
&& ((MODE) == SFmode || (MODE) == DFmode \
|| (MODE) == XFmode)) \
? 16 : 0))
#undef FUNCTION_VALUE
#define FUNCTION_VALUE(VALTYPE,FUNC) FUNCTION_VALUEX (TYPE_MODE (VALTYPE))
#endif /* 0 */
/* This is how to output an assembler lines defining floating operands.
There's no way to output a NaN's fraction, so we lose it. */
#undef ASM_OUTPUT_FLOAT_OPERAND
#define ASM_OUTPUT_FLOAT_OPERAND(CODE,FILE,VALUE) \
do { \
if (CODE != 'f') \
{ \
long l; \
REAL_VALUE_TO_TARGET_SINGLE (VALUE, l); \
if (sizeof (int) == sizeof (long)) \
asm_fprintf ((FILE), "%I0x%x", (int) l); \
else \
asm_fprintf ((FILE), "%I0x%lx", l); \
} \
else if (REAL_VALUE_ISINF (VALUE)) \
{ \
if (REAL_VALUE_NEGATIVE (VALUE)) \
asm_fprintf (FILE, "%I0r-99e999"); \
else \
asm_fprintf (FILE, "%I0r99e999"); \
} \
else if (REAL_VALUE_MINUS_ZERO (VALUE)) \
{ \
asm_fprintf (FILE, "%I0r-0.0"); \
} \
else \
{ char dstr[30]; \
REAL_VALUE_TO_DECIMAL ((VALUE), "%.9g", dstr); \
asm_fprintf (FILE, "%I0r%s", dstr); \
} \
} while (0)
#undef ASM_OUTPUT_DOUBLE_OPERAND
#define ASM_OUTPUT_DOUBLE_OPERAND(FILE,VALUE) \
do { if (REAL_VALUE_ISINF (VALUE)) \
{ \
if (REAL_VALUE_NEGATIVE (VALUE)) \
asm_fprintf (FILE, "%I0r-99e999"); \
else \
asm_fprintf (FILE, "%I0r99e999"); \
} \
else if (REAL_VALUE_MINUS_ZERO (VALUE)) \
{ \
asm_fprintf (FILE, "%I0r-0.0"); \
} \
else \
{ char dstr[30]; \
REAL_VALUE_TO_DECIMAL ((VALUE), "%.17g", dstr); \
asm_fprintf (FILE, "%I0r%s", dstr); \
} \
} while (0)
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