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Annotation of GNUtools/cc/config/i386/scodbx.h, revision 1.1

1.1     ! root        1: /* Definitions for Intel 386 running SCO Unix System V,
        !             2:    using dbx-in-coff encapsulation.
        !             3:    Copyright (C) 1992 Free Software Foundation, Inc.
        !             4: 
        !             5: This file is part of GNU CC.
        !             6: 
        !             7: GNU CC is free software; you can redistribute it and/or modify
        !             8: it under the terms of the GNU General Public License as published by
        !             9: the Free Software Foundation; either version 2, or (at your option)
        !            10: any later version.
        !            11: 
        !            12: GNU CC is distributed in the hope that it will be useful,
        !            13: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            14: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            15: GNU General Public License for more details.
        !            16: 
        !            17: You should have received a copy of the GNU General Public License
        !            18: along with GNU CC; see the file COPYING.  If not, write to
        !            19: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
        !            20: 
        !            21: #include "i386/svr3dbx.h"
        !            22: 
        !            23: /* Overridden defines for SCO systems from sco.h. */
        !            24: 
        !            25: /* By default, target has a 80387, uses IEEE compatible arithmetic,
        !            26:    and returns float values in the 387, ie,
        !            27:    (TARGET_80387 | TARGET_FLOAT_RETURNS_IN_80387)
        !            28: 
        !            29:    SCO's software emulation of a 387 fails to handle the `fucomp'
        !            30:    opcode.  fucomp is only used when generating IEEE compliant code.
        !            31:    So don't make TARGET_IEEE_FP default for SCO. */
        !            32: 
        !            33: #undef TARGET_DEFAULT
        !            34: #define TARGET_DEFAULT 0201
        !            35: 
        !            36: /* Use crt1.o as a startup file and crtn.o as a closing file.  */
        !            37: 
        !            38: #undef STARTFILE_SPEC
        !            39: #define STARTFILE_SPEC \
        !            40:   "%{!r:%{!z:svr3.ifile%s}%{z:svr3z.ifile%s}}\
        !            41:    %{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}"
        !            42: 
        !            43: /* Library spec, including SCO international language support. */
        !            44: 
        !            45: #undef LIB_SPEC
        !            46: #define LIB_SPEC \
        !            47:  "%{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp} %{scointl:libintl.a%s} -lc"
        !            48: 
        !            49: /* Specify predefined symbols in preprocessor.  */
        !            50: 
        !            51: #undef CPP_PREDEFINES
        !            52: #define CPP_PREDEFINES "-Dunix -Di386 -DM_UNIX -DM_I386 -DM_COFF -DM_WORDSWAP -Asystem(unix) -Asystem(svr3) -Acpu(i386) -Amachine(i386)"
        !            53: 
        !            54: #undef CPP_SPEC
        !            55: #define CPP_SPEC "%{scointl:-DM_INTERNAT}"
        !            56: 
        !            57: /* This spec is used for telling cpp whether char is signed or not.  */
        !            58: 
        !            59: #undef SIGNED_CHAR_SPEC
        !            60: #if DEFAULT_SIGNED_CHAR
        !            61: #define SIGNED_CHAR_SPEC \
        !            62:  "%{funsigned-char:-D__CHAR_UNSIGNED__ -D_CHAR_UNSIGNED}"
        !            63: #else
        !            64: #define SIGNED_CHAR_SPEC \
        !            65:  "%{!fsigned-char:-D__CHAR_UNSIGNED__ -D_CHAR_UNSIGNED}"
        !            66: #endif
        !            67: 
        !            68: /* Use atexit for static destructors, instead of defining
        !            69:    our own exit function.  */
        !            70: #define HAVE_ATEXIT
        !            71: 
        !            72: /* caller has to pop the extra argument passed to functions that return
        !            73:    structures. */
        !            74: 
        !            75: #undef RETURN_POPS_ARGS
        !            76: #define RETURN_POPS_ARGS(FUNTYPE,SIZE)   \
        !            77:   (TREE_CODE (FUNTYPE) == IDENTIFIER_NODE ? 0                  \
        !            78:    : (TARGET_RTD                                               \
        !            79:       && (TYPE_ARG_TYPES (FUNTYPE) == 0                                \
        !            80:          || (TREE_VALUE (tree_last (TYPE_ARG_TYPES (FUNTYPE))) \
        !            81:              == void_type_node))) ? (SIZE)                     \
        !            82:    : 0)
        !            83: /* On other 386 systems, the last line looks like this:
        !            84:    : (aggregate_value_p (TREE_TYPE (FUNTYPE))) ? GET_MODE_SIZE (Pmode) : 0)  */
        !            85: 
        !            86: /* Use periods rather than dollar signs in special g++ assembler names.  */
        !            87: 
        !            88: #define NO_DOLLAR_IN_LABEL

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