diff options
Diffstat (limited to 'gcc-4.9/gcc/config/ia64/vms.h')
| -rw-r--r-- | gcc-4.9/gcc/config/ia64/vms.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/config/ia64/vms.h b/gcc-4.9/gcc/config/ia64/vms.h new file mode 100644 index 000000000..4e38e80f9 --- /dev/null +++ b/gcc-4.9/gcc/config/ia64/vms.h @@ -0,0 +1,156 @@ +/* Definitions of target machine GNU compiler. IA64-VMS version. + Copyright (C) 2003-2014 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 |