Annotation of GNUtools/cc/config/i386/scodbx.h, revision 1.1.1.1

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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