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      1 /* Definitions of target machine GNU compiler. VMS common version.
      2    Copyright (C) 2003-2022 Free Software Foundation, Inc.
      3    Contributed by Douglas B Rupp (rupp (at) 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
     93