gcc/config/rs6000/rtems.h

   1 /* Definitions for rtems targeting a PowerPC using elf.
   2    Copyright (C) 1996-2015 Free Software Foundation, Inc.
   3    Contributed by Joel Sherrill (joel@OARcorp.com).
   4
   5    This file is part of GCC.
   6
   7    GCC is free software; you can redistribute it and/or modify it
   8    under the terms of the GNU General Public License as published
   9    by the Free Software Foundation; either version 3, or (at your
  10    option) any later version.
  11
  12    GCC is distributed in the hope that it will be useful, but WITHOUT
  13    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  15    License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GCC; see the file COPYING3.  If not see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21 /* Specify predefined symbols in preprocessor.  */
  22
  23 #undef TARGET_OS_CPP_BUILTINS
  24 #define TARGET_OS_CPP_BUILTINS()          \
  25   do                                      \
  26     {                                     \
  27       builtin_define_std ("PPC");         \
  28       builtin_define ("__rtems__");       \
  29       builtin_define ("__USE_INIT_FINI__"); \
  30       builtin_assert ("system=rtems");    \
  31       builtin_assert ("cpu=powerpc");     \
  32       builtin_assert ("machine=powerpc"); \
  33       TARGET_OS_SYSV_CPP_BUILTINS ();     \
  34     }                                     \
  35   while (0)
  36
  37 #undef TARGET_LIBGCC_SDATA_SECTION
  38 #define TARGET_LIBGCC_SDATA_SECTION ".sdata"
  39
  40 #undef CPP_OS_DEFAULT_SPEC
  41 #define CPP_OS_DEFAULT_SPEC "%(cpp_os_rtems)"
  42
  43 #define CPP_OS_RTEMS_SPEC "\
  44 %{!mcpu*:  %{!Dppc*: %{!Dmpc*: -Dmpc750} } }\
  45 %{mcpu=403:  %{!Dppc*: %{!Dmpc*: -Dppc403}  } } \
  46 %{mcpu=505:  %{!Dppc*: %{!Dmpc*: -Dmpc505}  } } \
  47 %{mcpu=601:  %{!Dppc*: %{!Dmpc*: -Dppc601}  } } \
  48 %{mcpu=602:  %{!Dppc*: %{!Dmpc*: -Dppc602}  } } \
  49 %{mcpu=603:  %{!Dppc*: %{!Dmpc*: -Dppc603}  } } \
  50 %{mcpu=603e: %{!Dppc*: %{!Dmpc*: -Dppc603e} } } \
  51 %{mcpu=604:  %{!Dppc*: %{!Dmpc*: -Dmpc604}  } } \
  52 %{mcpu=750:  %{!Dppc*: %{!Dmpc*: -Dmpc750}  } } \
  53 %{mcpu=821:  %{!Dppc*: %{!Dmpc*: -Dmpc821}  } } \
  54 %{mcpu=860:  %{!Dppc*: %{!Dmpc*: -Dmpc860}  } } \
  55 %{mcpu=8540: %{!Dppc*: %{!Dmpc*: -Dppc8540}  } } \
  56 %{mcpu=e6500: -D__PPC_CPU_E6500__}"
  57
  58 #undef  SUBSUBTARGET_EXTRA_SPECS
  59 #define SUBSUBTARGET_EXTRA_SPECS \
  60   { "cpp_os_rtems",             CPP_OS_RTEMS_SPEC }