gcc/config/m68k/hp2bsd.h

   1 /* Definitions of target machine for GNU compiler.  HP 9000/200 68000 version.
   2    Copyright (C) 1987, 1991 Free Software Foundation, Inc.
   3
   4 This file is part of GNU CC.
   5
   6 GNU CC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU CC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU CC; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 #include "m68k/m68k.h"
  22
  23 /* See m68k.h.  0 means 68000 with no 68881.  */
  24
  25 #define TARGET_DEFAULT 0
  26
  27 /* Don't try using XFmode.  */
  28 #undef LONG_DOUBLE_TYPE_SIZE
  29 #define LONG_DOUBLE_TYPE_SIZE 64
  30
  31 /* Define __HAVE_68881 in preprocessor only if -m68881 is specified.
  32    This will control the use of inline 68881 insns in certain macros.
  33    Also inform the program which CPU this is for.  */
  34
  35 #define CPP_SPEC "%{m68881:-D__HAVE_68881__} \
  36 %{!ansi:%{m68020:-Dmc68020}%{mc68020:-Dmc68020}%{!mc68020:%{!m68020:-Dmc68010}}}"
  37
  38 /* -m68020 requires special flags to the assembler.  */
  39
  40 #define ASM_SPEC \
  41  "%{m68020:-mc68020}%{mc68020:-mc68020}%{!mc68020:%{!m68020:-mc68010}}"
  42
  43 /* Names to predefine in the preprocessor for this target machine.  */
  44
  45 #define CPP_PREDEFINES "-Dmc68000 -Dmc68010 -Dhp200 -Dunix -Asystem(unix) -Asystem(bsd) -Acpu(m68k) -Amachine(m68k)"
  46
  47 /* Link with libg.a when debugging, for dbx's sake.  */
  48
  49 #define LIB_SPEC "%{g:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} "
  50
  51 /* Alignment of field after `int : 0' in a structure.  */
  52
  53 #undef EMPTY_FIELD_BOUNDARY
  54 #define EMPTY_FIELD_BOUNDARY 16
  55
  56 /* Every structure or union's size must be a multiple of 2 bytes.  */
  57
  58 #define STRUCTURE_SIZE_BOUNDARY 16
  59
  60 /* This is BSD, so it wants DBX format.  */
  61
  62 #define DBX_DEBUGGING_INFO
  63
  64 /* Define subroutines to call to handle multiply, divide, and remainder.
  65    These routines are built into the c-library on the hp200.
  66    XXX What other routines from the c-library could we use?
  67    The `*' prevents an underscore from being prepended by the compiler.  */
  68
  69 #define DIVSI3_LIBCALL "*ldiv"
  70 #define UDIVSI3_LIBCALL "*uldiv"
  71 #define MODSI3_LIBCALL "*lrem"
  72 #define UMODSI3_LIBCALL "*ulrem"
  73 #define MULSI3_LIBCALL "*lmul"
  74 #define UMULSI3_LIBCALL "*ulmul"
  75
  76 /* Don't default to pcc-struct-return, because gcc is the only compiler, and
  77    we want to retain compatibility with older gcc versions.  */
  78 #define DEFAULT_PCC_STRUCT_RETURN 0