gcc/config/m68k/linux-aout.h

   1 /* Definitions for Motorola m68k running Linux-based GNU systems.
   2    Copyright (C) 1995, 1996, 1997 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 1, 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 #include <linux-aout.h>
  23
  24 /* 68020 with 68881 */
  25 #define TARGET_DEFAULT (MASK_BITFIELD|MASK_68881|MASK_68020)
  26
  27 #define DBX_DEBUGGING_INFO
  28
  29 #define ASM_COMMENT_START "|"
  30
  31 #define CPP_PREDEFINES \
  32   "-Dunix -Dmc68000 -Dmc68020 -Dlinux -Asystem(unix) -Asystem(posix) -Acpu(m68k) -Amachine(m68k)"
  33
  34 #undef CPP_SPEC
  35 #if TARGET_DEFAULT & MASK_68881
  36 #define CPP_SPEC \
  37   "%{!msoft-float:-D__HAVE_68881__} %{posix:-D_POSIX_SOURCE}"
  38 #else
  39 #define CPP_SPEC \
  40   "%{m68881:-D__HAVE_68881__} %{posix:-D_POSIX_SOURCE}"
  41 #endif
  42
  43 #undef SUBTARGET_SWITCHES
  44 #define SUBTARGET_SWITCHES      {"ieee-fp", 0},
  45
  46 #undef ASM_SPEC
  47 #define ASM_SPEC \
  48   "%{m68030} %{m68040} %{fpic:-k} %{fPIC:-k}"
  49
  50 #undef LIB_SPEC
  51 #if 1
  52 /* We no longer link with libc_p.a or libg.a by default.  If you want
  53    to profile or debug the GNU/Linux C library, please add -lc_p or -ggdb
  54    to LDFLAGS at the link time, respectively.  */
  55 #define LIB_SPEC \
  56   "%{mieee-fp:-lieee} %{p:-lgmon} %{pg:-lgmon} %{!ggdb:-lc} %{ggdb:-lg}"
  57 #else
  58 #define LIB_SPEC \
  59   "%{mieee-fp:-lieee} %{p:-lgmon -lc_p} %{pg:-lgmon -lc_p} %{!p:%{!pg:%{!g*:-lc} %{g*:-lg}}}"
  60 #endif
  61
  62 /* We want to pass -v to linker */
  63 #undef LINK_SPEC
  64 #define LINK_SPEC       "-m m68klinux %{v:-dll-verbose}"
  65
  66 #define SIZE_TYPE "unsigned int"
  67 #define PTRDIFF_TYPE "int"
  68
  69 /* Generate calls to memcpy, memcmp and memset.  */
  70 #define TARGET_MEM_FUNCTIONS
  71
  72 /* Don't default to pcc-struct-return, because gcc is the only compiler.  */
  73 #undef PCC_STATIC_STRUCT_RETURN
  74 #define DEFAULT_PCC_STRUCT_RETURN 0
  75
  76 /* Allow folding division by zero.  */
  77 #define REAL_INFINITY