gcc/config/rs6000/vxworks.h

   1 /* Definitions of target machine for GNU compiler.  Vxworks PowerPC version.
   2    Copyright (C) 1996, 2000, 2002, 2003 Free Software Foundation, Inc.
   3
   4    This file is part of GCC.
   5
   6    GCC is free software; you can redistribute it and/or modify it
   7    under the terms of the GNU General Public License as published
   8    by the Free Software Foundation; either version 2, or (at your
   9    option) any later version.
  10
  11    GCC is distributed in the hope that it will be useful, but WITHOUT
  12    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  14    License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with GCC; see the file COPYING.  If not, write to the
  18    Free Software Foundation, 59 Temple Place - Suite 330, Boston,
  19    MA 02111-1307, USA.  */
  20
  21 #undef  TARGET_OS_CPP_BUILTINS
  22 #define TARGET_OS_CPP_BUILTINS()                \
  23   do                                            \
  24     {                                           \
  25       builtin_define ("__vxworks");             \
  26       builtin_define ("__vxworks__");           \
  27     }                                           \
  28   while (0)
  29
  30 /* We have to kill off the entire specs set created by rs6000/sysv4.h
  31    and substitute our own set.  The top level vxworks.h has done some
  32    of this for us.  */
  33
  34 #undef SUBTARGET_EXTRA_SPECS
  35 #undef CPP_SPEC
  36 #undef CC1_SPEC
  37 #undef ASM_SPEC
  38
  39 #define SUBTARGET_EXTRA_SPECS /* none needed */
  40
  41 #define CPP_SPEC \
  42 "-DCPU_FAMILY=PPC -D__ppc -D__EABI__  \
  43  %{t403: -DCPU=PPC403 -D_SOFT_FLOAT ; \
  44    t405: -DCPU=PPC405 -D_SOFT_FLOAT ; \
  45    t440: -DCPU=PPC440 -D_SOFT_FLOAT ; \
  46    t603: -DCPU=PPC603               ; \
  47    t604: -DCPU=PPC604               ; \
  48    t860: -DCPU=PPC860 -D_SOFT_FLOAT ; \
  49        : -DCPU=PPC604}  \
  50  %{!msoft-float:-D__hardfp}        \
  51  %{fpic|fpie: -D__PIC__=1 -D__pic__=1 ; \
  52    fPIC|fPIE: -D__PIC__=2 -D__pic__=2 } \
  53  %(cpp_cpu)"
  54
  55 #define CC1_SPEC \
  56 "%{t403: -mcpu=403 -mstrict-align ;                             \
  57    t405: -mcpu=405 -mstrict-align ;                             \
  58    t440: -mcpu=440 -mstrict-align ;                             \
  59    t603: -mcpu=603 -mstrict-align ;                             \
  60    t604: -mcpu=604 -mstrict-align ;                             \
  61    t860: -mcpu=860                ;                             \
  62        : -mcpu=604 -mstrict-align }                             \
  63  %{G*} %{mno-sdata:-msdata=none} %{msdata:-msdata=default}      \
  64  %{mlittle|mlittle-endian:-mstrict-align}                       \
  65  %{profile: -p}                                                 \
  66  %{fvec:-maltivec} %{fvec-eabi:-maltivec -mabi=altivec}"
  67
  68 #define ASM_SPEC "%(asm_cpu) \
  69 %{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
  70 %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
  71 %{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} -mbig"
  72
  73 #undef  MULTILIB_DEFAULTS
  74 #define MULTILIB_DEFAULTS { "t604" }
  75
  76 /* We can't use .ctors/.dtors sections.  */
  77 #undef TARGET_ASM_OUTPUT_CONSTRUCTOR
  78 #undef TARGET_ASM_OUTPUT_DESTRUCTOR
  79
  80 /* Nor sdata.  */
  81 #undef  SDATA_DEFAULT_SIZE
  82 #define SDATA_DEFAULT_SIZE 0