93 lines
3.0 KiB
C
93 lines
3.0 KiB
C
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/* Definitions for Intel 386 running SCO Unix System V,
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using dbx-in-coff encapsulation.
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Copyright (C) 1992, 1995 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC 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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GNU CC 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 GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "i386/svr3dbx.h"
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/* Overridden defines for SCO systems from sco.h. */
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/* By default, target has a 80387, uses IEEE compatible arithmetic,
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and returns float values in the 387, ie,
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(TARGET_80387 | TARGET_FLOAT_RETURNS_IN_80387)
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SCO's software emulation of a 387 fails to handle the `fucomp'
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opcode. fucomp is only used when generating IEEE compliant code.
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So don't make TARGET_IEEE_FP default for SCO. */
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT 0201
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/* Use crt1.o as a startup file and crtn.o as a closing file. */
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC \
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"%{!r:%{!z:svr3.ifile%s}%{z:svr3z.ifile%s}}\
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%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}"
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/* Library spec, including SCO international language support. */
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#undef LIB_SPEC
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#define LIB_SPEC \
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"%{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp} %{scointl:libintl.a%s} -lc"
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/* Specify predefined symbols in preprocessor. */
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#undef CPP_PREDEFINES
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#define CPP_PREDEFINES "-Dunix -Di386 -DM_UNIX -DM_I386 -DM_COFF -DM_WORDSWAP -Asystem(unix) -Asystem(svr3) -Acpu(i386) -Amachine(i386)"
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#undef CPP_SPEC
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#define CPP_SPEC "%{scointl:-DM_INTERNAT}"
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/* This spec is used for telling cpp whether char is signed or not. */
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#undef SIGNED_CHAR_SPEC
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#if DEFAULT_SIGNED_CHAR
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#define SIGNED_CHAR_SPEC \
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"%{funsigned-char:-D__CHAR_UNSIGNED__ -D_CHAR_UNSIGNED}"
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#else
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#define SIGNED_CHAR_SPEC \
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"%{!fsigned-char:-D__CHAR_UNSIGNED__ -D_CHAR_UNSIGNED}"
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#endif
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/* Use atexit for static destructors, instead of defining
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our own exit function. */
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#define HAVE_ATEXIT
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/* caller has to pop the extra argument passed to functions that return
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structures. */
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#undef RETURN_POPS_ARGS
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#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) \
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(TREE_CODE (FUNTYPE) == IDENTIFIER_NODE ? 0 \
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: (TARGET_RTD \
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&& (TYPE_ARG_TYPES (FUNTYPE) == 0 \
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|| (TREE_VALUE (tree_last (TYPE_ARG_TYPES (FUNTYPE))) \
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== void_type_node))) ? (SIZE) \
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: 0)
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/* On other 386 systems, the last line looks like this:
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: (aggregate_value_p (TREE_TYPE (FUNTYPE))) ? GET_MODE_SIZE (Pmode) : 0) */
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/* Use periods rather than dollar signs in special g++ assembler names. */
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#define NO_DOLLAR_IN_LABEL
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/* Handle #pragma pack. */
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#define HANDLE_SYSV_PRAGMA
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