gcc/config/vms/vms.h

   1 /* Definitions of target machine GNU compiler. VMS common version.
   2    Copyright (C) 2003-2018 Free Software Foundation, Inc.
   3    Contributed by Douglas B Rupp (rupp@gnat.com).
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public 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 #define TARGET_OBJECT_SUFFIX ".obj"
  22 #define TARGET_EXECUTABLE_SUFFIX ".exe"
  23
  24 #define TARGET_OS_CPP_BUILTINS()                                         \
  25   do {                                                                   \
  26     builtin_define_std ("vms");                                          \
  27     builtin_define_std ("VMS");                                          \
  28     builtin_assert ("system=vms");                                       \
  29     SUBTARGET_OS_CPP_BUILTINS();                                         \
  30     builtin_define ("__int64=long long");                                \
  31     if (flag_vms_pointer_size == VMS_POINTER_SIZE_32)                    \
  32       builtin_define ("__INITIAL_POINTER_SIZE=32");                      \
  33     else if (flag_vms_pointer_size == VMS_POINTER_SIZE_64)               \
  34       builtin_define ("__INITIAL_POINTER_SIZE=64");                      \
  35     if (POINTER_SIZE == 64)                                              \
  36       builtin_define ("__LONG_POINTERS=1");                              \
  37     builtin_define_with_int_value ("__CRTL_VER", vms_c_get_crtl_ver ()); \
  38     builtin_define_with_int_value ("__VMS_VER", vms_c_get_vms_ver ());   \
  39   } while (0)
  40
  41 extern void vms_c_register_includes (const char *, const char *, int);
  42 #define TARGET_EXTRA_INCLUDES vms_c_register_includes
  43
  44 /* Tell compiler we want to support VMS pragmas */
  45 #define REGISTER_TARGET_PRAGMAS() vms_c_register_pragma ()
  46
  47 /* By default, allow $ to be part of an identifier.  */
  48 #define DOLLARS_IN_IDENTIFIERS 2
  49
  50 #undef TARGET_ABI_OPEN_VMS
  51 #define TARGET_ABI_OPEN_VMS 1
  52
  53 /* "long" is 32 bits, but 64 bits for Ada.  */
  54 #undef LONG_TYPE_SIZE
  55 #define LONG_TYPE_SIZE 32
  56 #define ADA_LONG_TYPE_SIZE 64
  57
  58 /* Pointer is 32 bits but the hardware has 64-bit addresses, sign extended.  */
  59 #undef POINTER_SIZE
  60 #define POINTER_SIZE (flag_vms_pointer_size == VMS_POINTER_SIZE_NONE ? 32 : 64)
  61 #define POINTERS_EXTEND_UNSIGNED 0
  62
  63 /* Always a 32 bit type.  */
  64 #undef SIZE_TYPE
  65 #define SIZE_TYPE  "unsigned int"
  66
  67 /* ???: Defined as a 'int' by dec-c, but obstack.h doesn't like it.  */
  68 #undef PTRDIFF_TYPE
  69 #define PTRDIFF_TYPE (flag_vms_pointer_size == VMS_POINTER_SIZE_NONE ? \
  70                       "int" : "long long int")
  71
  72 #define SIZETYPE (flag_vms_pointer_size == VMS_POINTER_SIZE_NONE ? \
  73                   "unsigned int" : "long long unsigned int")
  74
  75 #define C_COMMON_OVERRIDE_OPTIONS vms_c_common_override_options ()
  76
  77 /* VMS doesn't support other sections than .text for code.  */
  78 #define TARGET_ASM_FUNCTION_SECTION vms_function_section
  79
  80 /* Always use 8 bytes addresses in dwarf2 debug info.  The default value doesn't
  81    work as it may be 4 bytes, which won't match gas default (8 bytes for ia64),
  82    and will thus produce incorrect values.  */
  83 #define DWARF2_ADDR_SIZE 8
  84
  85 /* No libm on VMS.  */
  86 #define MATH_LIBRARY ""
  87
  88 /* Special VMS debugger symbol to record the entry point.  */
  89 #define VMS_DEBUG_MAIN_POINTER "TRANSFER$BREAK$GO"
  90
  91 #undef TARGET_LIBC_HAS_FUNCTION
  92 #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function