| /* Definitions of target machine GNU compiler. IA64-VMS version. |
| Copyright (C) 2003-2020 Free Software Foundation, Inc. |
| Contributed by Douglas B Rupp (rupp@gnat.com). |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3, or (at your option) |
| any later version. |
| |
| GCC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #define OBJECT_FORMAT_ELF |
| |
| #define SUBTARGET_OS_CPP_BUILTINS() \ |
| do { \ |
| builtin_define ("__IA64"); \ |
| builtin_define ("__IEEE_FLOAT"); \ |
| } while (0) |
| |
| /* Need .debug_line info generated from gcc and gas. */ |
| #undef TARGET_DEFAULT |
| #define TARGET_DEFAULT (MASK_DWARF2_ASM | MASK_GNU_AS) |
| |
| #undef MAX_OFILE_ALIGNMENT |
| #define MAX_OFILE_ALIGNMENT 524288 /* 8 x 2^16 by DEC Ada Test CD40VRA */ |
| |
| /* Widest floating-point type efficiently supported by hardware and OS. */ |
| #undef WIDEST_HARDWARE_FP_SIZE |
| #define WIDEST_HARDWARE_FP_SIZE 64 |
| |
| /* The structure return address arrives as an "argument" on VMS. */ |
| #undef PCC_STATIC_STRUCT_RETURN |
| |
| /* Turn on VMS specific Dwarf2 features. */ |
| #define VMS_DEBUGGING_INFO 1 |
| |
| #define ASM_OUTPUT_DWARF_VMS_DELTA(FILE,SIZE,LABEL1,LABEL2) \ |
| do { \ |
| fprintf (FILE, "\tdata4.ua\t@slotcount("); \ |
| assemble_name (FILE, LABEL1); \ |
| fprintf (FILE, "-"); \ |
| assemble_name (FILE, LABEL2); \ |
| fprintf (FILE, ")"); \ |
| } while (0) |
| |
| #undef STARTFILE_SPEC |
| #define STARTFILE_SPEC "%{!shared:crt0.o%s crtbegin.o%s} \ |
| %{!static:%{shared:crtinitS.o%s crtbeginS.o%s}}" |
| |
| #undef ENDFILE_SPEC |
| #define ENDFILE_SPEC "%{!shared:crtend.o%s} %{!static:%{shared:crtendS.o%s}}" |
| |
| #define LINK_GCC_C_SEQUENCE_SPEC "%G" |
| |
| #undef LINK_SPEC |
| #define LINK_SPEC "%{g0} %{g*:-g} %{map} %{save-temps} %{shared} %{v}" |
| |
| #undef LIB_SPEC |
| #define LIB_SPEC "" |
| |
| #undef ASM_SPEC |
| #define ASM_SPEC \ |
| "%{mno-gnu-as:-N so -N vms_upcase -W DVLoc_off} %{mconstant-gp:-M const_gp} \ |
| %{mauto-pic:-M no_plabel} %{source-listing:-ahdl=%b.lis}" |
| |
| #undef ASM_OUTPUT_EXTERNAL_LIBCALL |
| #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \ |
| do { \ |
| (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \ |
| ASM_OUTPUT_TYPE_DIRECTIVE (FILE, XSTR (FUN, 0), "function"); \ |
| } while (0) |
| |
| /* Set the function to change the names of the division and modulus |
| functions. */ |
| #undef TARGET_INIT_LIBFUNCS |
| #define TARGET_INIT_LIBFUNCS ia64_vms_init_libfuncs |
| |
| #define CTOR_LIST_BEGIN asm (".global\tLIB$INITIALIZE#\n"); \ |
| STATIC func_ptr __CTOR_LIST__[1] \ |
| __attribute__ ((__unused__, section(".ctors"), aligned(sizeof(func_ptr)))) \ |
| = { (func_ptr) (-1) }; |
| |
| #undef INIT_SECTION_ASM_OP |
| #define INIT_SECTION_ASM_OP ".section\tLIB$INITIALIZE#,\"a\",@progbits" |
| |
| #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ |
| asm (SECTION_OP "\n\tdata4 @fptr(" #FUNC"#)\n"); \ |
| FORCE_CODE_SECTION_ALIGN \ |
| asm (TEXT_SECTION_ASM_OP); |
| |
| #undef FINI_SECTION_ASM_OP |
| |
| /* Maybe same as HPUX? Needs to be checked. */ |
| #define JMP_BUF_SIZE (8 * 76) |
| |
| #undef SUBTARGET_OPTIMIZATION_OPTIONS |
| #define SUBTARGET_OPTIMIZATION_OPTIONS \ |
| { OPT_LEVELS_ALL, OPT_fmerge_constants, NULL, 0 } |
| |
| /* Define this to be nonzero if static stack checking is supported. */ |
| #define STACK_CHECK_STATIC_BUILTIN 1 |
| |
| /* Minimum amount of stack required to recover from an anticipated stack |
| overflow detection. The default value conveys an estimate of the amount |
| of stack required to propagate an exception. */ |
| #define STACK_CHECK_PROTECT (24 * 1024) |
| |
| #undef ASM_OUTPUT_ALIGNED_DECL_COMMON |
| #define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN) \ |
| ia64_vms_output_aligned_decl_common (FILE, DECL, NAME, SIZE, ALIGN) |
| |
| #undef TARGET_VALID_POINTER_MODE |
| #define TARGET_VALID_POINTER_MODE ia64_vms_valid_pointer_mode |
| |
| /* Define this macro if it is advisable to hold scalars in registers |
| in a wider mode than that declared by the program. In such cases, |
| the value is constrained to be within the bounds of the declared |
| type, but kept valid in the wider mode. The signedness of the |
| extension may differ from that of the type. |
| |
| For ia64, we always store objects in a full register. 32-bit integers |
| are always sign-extended, but smaller objects retain their signedness. */ |
| |
| #undef PROMOTE_MODE |
| #define PROMOTE_MODE(MODE,UNSIGNEDP,TYPE) \ |
| if (GET_MODE_CLASS (MODE) == MODE_INT \ |
| && GET_MODE_SIZE (MODE) < UNITS_PER_WORD) \ |
| { \ |
| if ((MODE) == SImode) \ |
| (UNSIGNEDP) = 0; \ |
| (MODE) = DImode; \ |
| } |
| |
| #undef TARGET_PROMOTE_FUNCTION_MODE |
| #define TARGET_PROMOTE_FUNCTION_MODE default_promote_function_mode_always_promote |
| |
| /* Code is always in P0/P1 (lower 32 bit addresses) on VMS. */ |
| #undef CASE_VECTOR_MODE |
| #define CASE_VECTOR_MODE SImode |
| |
| /* IA64 VMS doesn't fully support COMDAT sections. */ |
| |
| #define SUPPORTS_ONE_ONLY 0 |
| |
| /* Default values for _CRTL_VER and _VMS_VER. */ |
| #define VMS_DEFAULT_CRTL_VER 80300000 |
| #define VMS_DEFAULT_VMS_VER 80300000 |