/* Definitions for Intel 386 running SCO Unix System V.   Copyright (C) 1988, 1992, 1994, 1995 Free, 1996 Software Foundation, Inc.This file is part of GNU CC.GNU CC is free software; you can redistribute it and/or modifyit under the terms of the GNU General Public License as published bythe 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 ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See theGNU General Public License for more details.You should have received a copy of the GNU General Public Licensealong with GNU CC; see the file COPYING.  If not, write tothe Free Software Foundation, 59 Temple Place - Suite 330,Boston, MA 02111-1307, USA.  *//* Mostly it's like AT&T Unix System V. */#include "i386/sysv3.h"/* By default, target has a 80387, uses IEEE compatible arithmetic,   and returns float values in the 387, ie,   (TARGET_80387 | TARGET_FLOAT_RETURNS_IN_80387)   SCO's software emulation of a 387 fails to handle the `fucomp'   opcode.  fucomp is only used when generating IEEE compliant code.   So don't make TARGET_IEEE_FP default for SCO. */#undef TARGET_DEFAULT#define TARGET_DEFAULT 0201/* Let's guess that the SCO software FPU emulator can't handle   80-bit XFmode insns, so don't generate them.  */#undef LONG_DOUBLE_TYPE_SIZE#define LONG_DOUBLE_TYPE_SIZE 64/* Use crt1.o as a startup file and crtn.o as a closing file.  */#undef STARTFILE_SPEC#define STARTFILE_SPEC \ "%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}} crtbegin.o%s"#define ENDFILE_SPEC "crtend.o%s crtn.o%s"/* Library spec, including SCO international language support. */#undef LIB_SPEC#define LIB_SPEC \ "%{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp} %{scointl:libintl.a%s} -lc"/* Specify predefined symbols in preprocessor.  */#undef CPP_PREDEFINES#define CPP_PREDEFINES "-Dunix -DM_UNIX -DM_I386 -DM_COFF -DM_WORDSWAP -Asystem(svr3)"#undef CPP_SPEC#define CPP_SPEC "%(cpp_cpu) %[cpp_cpu] %{scointl:-DM_INTERNAT}"/* This spec is used for telling cpp whether char is signed or not.  */#undef SIGNED_CHAR_SPEC#if DEFAULT_SIGNED_CHAR#define SIGNED_CHAR_SPEC \ "%{funsigned-char:-D__CHAR_UNSIGNED__ -D_CHAR_UNSIGNED}"#else#define SIGNED_CHAR_SPEC \ "%{!fsigned-char:-D__CHAR_UNSIGNED__ -D_CHAR_UNSIGNED}"#endif/* Use atexit for static destructors, instead of defining   our own exit function.  */#define HAVE_ATEXIT/* Specify the size_t type.  */#define SIZE_TYPE "unsigned int"#if 0 /* Not yet certain whether this is needed.  *//* If no 387, use the general regs to return floating values,   since this system does not emulate the 80387.  */#undef VALUE_REGNO#define VALUE_REGNO(MODE) \  ((TARGET_80387     && ((MODE) == SFmode || (MODE) == DFmode || (MODE) == XFmode)   ? FIRST_FLOAT_REG : 0)#undef HARD_REGNO_MODE_OK#define HARD_REGNO_MODE_OK(REGNO, MODE)					  \  ((REGNO) < 2 ? 1							  \   : (REGNO) < 4 ? 1							  \   : FP_REGNO_P (REGNO) ? ((GET_MODE_CLASS (MODE) == MODE_FLOAT		  \                          || GET_MODE_CLASS (MODE) == MODE_COMPLEX_FLOAT) \                         && TARGET_80387				  \                         && GET_MODE_UNIT_SIZE (MODE) <= 8)		  \   : (MODE) != QImode)#endif/* caller has to pop the extra argument passed to functions that return   structures. */#undef RETURN_POPS_ARGS#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE)   \  ((FUNDECL) && TREE_CODE (FUNDECL) == IDENTIFIER_NODE ? 0	\   : (TARGET_RTD						\      && (TYPE_ARG_TYPES (FUNTYPE) == 0				\	  || (TREE_VALUE (tree_last (TYPE_ARG_TYPES (FUNTYPE)))	\	      == void_type_node))) ? (SIZE)			\   : 0)/* On other 386 systems, the last line looks like this:   : (aggregate_value_p (TREE_TYPE (FUNTYPE))) ? GET_MODE_SIZE (Pmode) : 0)  *//* Handle #pragma pack. */#define HANDLE_SYSV_PRAGMA