gcc/config/aarch64/aarch64-vxworks.h

   1 /* Definitions of target machine for GNU compiler.  Vxworks Aarch 64bit
   2    version.
   3    Copyright (C) 2018-2024 Free Software Foundation, Inc.
   4    Contributed by Douglas B Rupp
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 3, or (at your option) any later
  11 version.
  12
  13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22 #undef SUBTARGET_OVERRIDE_OPTIONS
  23 #define SUBTARGET_OVERRIDE_OPTIONS VXWORKS_OVERRIDE_OPTIONS
  24
  25 #undef LINK_SPEC
  26 #define LINK_SPEC VXWORKS_LINK_SPEC
  27
  28 #undef LIB_SPEC
  29 #define LIB_SPEC VXWORKS_LIB_SPEC
  30
  31 #undef STARTFILE_SPEC
  32 #define STARTFILE_SPEC VXWORKS_STARTFILE_SPEC
  33
  34 #undef ENDFILE_SPEC
  35 #define ENDFILE_SPEC VXWORKS_ENDFILE_SPEC
  36
  37 #undef CPP_SPEC
  38 #define CPP_SPEC VXWORKS_ADDITIONAL_CPP_SPEC
  39
  40 #undef CC1_SPEC
  41 #define CC1_SPEC VXWORKS_CC1_SPEC
  42
  43 #undef FUNCTION_PROFILER
  44 #define FUNCTION_PROFILER VXWORKS_FUNCTION_PROFILER
  45
  46 #undef TARGET_OS_CPP_BUILTINS
  47 #define TARGET_OS_CPP_BUILTINS()          \
  48   do {                                    \
  49     if (TARGET_BIG_END)                         \
  50       builtin_define ("ARMEB");                 \
  51     else                                        \
  52       builtin_define ("ARMEL");                 \
  53     builtin_define \
  54       (VX_CPU_PREFIX "CPU=" VX_CPU_PREFIX "ARMARCH8A"); \
  55     VXWORKS_OS_CPP_BUILTINS ();           \
  56   } while (0)
  57
  58 /* Static stack checking is supported.  */
  59 #define STACK_CHECK_STATIC_BUILTIN 1
  60
  61 #undef STACK_CHECK_PROTECT
  62 #define STACK_CHECK_PROTECT 16384
  63
  64 /* The VxWorks environment on aarch64 is llvm-based.  */
  65 #undef VXWORKS_PERSONALITY
  66 #define VXWORKS_PERSONALITY "llvm"
  67
  68 /* VxWorks uses R18 as a TCB pointer.  We must pick something else as
  69    the static chain and R18 needs to be claimed "fixed".  Until we
  70    arrange to override the common parts of the port family to
  71    acknowledge the latter, configure --with-specs="-ffixed-r18".  */
  72 #undef  STATIC_CHAIN_REGNUM
  73 #define STATIC_CHAIN_REGNUM 9
  74