215 lines
8.1 KiB
C
215 lines
8.1 KiB
C
/* Definitions of target machine GNU compiler. IA64-VMS version.
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Copyright (C) 2003-2009 Free Software Foundation, Inc.
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Contributed by Douglas B Rupp (rupp@gnat.com).
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#define TARGET_OBJECT_SUFFIX ".obj"
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#define TARGET_EXECUTABLE_SUFFIX ".exe"
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#define OBJECT_FORMAT_ELF
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#define TARGET_OS_CPP_BUILTINS() \
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do { \
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builtin_define_std ("vms"); \
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builtin_define_std ("VMS"); \
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builtin_define ("__IA64"); \
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builtin_assert ("system=vms"); \
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builtin_define ("__IEEE_FLOAT"); \
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} while (0)
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/* By default, allow $ to be part of an identifier. */
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#define DOLLARS_IN_IDENTIFIERS 2
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#undef TARGET_ABI_OPEN_VMS
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#define TARGET_ABI_OPEN_VMS 1
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#undef TARGET_NAME
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#define TARGET_NAME "OpenVMS/IA64"
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#undef TARGET_VERSION
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#define TARGET_VERSION fprintf (stderr, " (%s)", TARGET_NAME);
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/* Need .debug_line info generated from gcc and gas. */
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT (MASK_DWARF2_ASM | MASK_GNU_AS)
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#define VMS_DEBUG_MAIN_POINTER "TRANSFER$BREAK$GO"
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/* "long" is 32 bits, but 64 bits for Ada. */
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#undef LONG_TYPE_SIZE
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#define LONG_TYPE_SIZE 32
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#define ADA_LONG_TYPE_SIZE 64
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/* Pointer is 32 bits but the hardware has 64-bit addresses, sign extended. */
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#undef POINTER_SIZE
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#define POINTER_SIZE 32
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#define POINTERS_EXTEND_UNSIGNED 0
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#undef MAX_OFILE_ALIGNMENT
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#define MAX_OFILE_ALIGNMENT 524288 /* 8 x 2^16 by DEC Ada Test CD40VRA */
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/* Widest floating-point type efficiently supported by hardware and OS. */
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#undef WIDEST_HARDWARE_FP_SIZE
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#define WIDEST_HARDWARE_FP_SIZE 64
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/* The structure return address arrives as an "argument" on VMS. */
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#undef PCC_STATIC_STRUCT_RETURN
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/* Turn on VMS specific Dwarf2 features. */
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#define VMS_DEBUGGING_INFO 1
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#define ASM_OUTPUT_DWARF_DELTA_UNITS(FILE,SIZE,LABEL1,LABEL2,UNITS) \
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do { \
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fprintf (FILE, "\tdata4.ua\t ("); \
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assemble_name (FILE, LABEL1); \
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fprintf (FILE, "-"); \
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assemble_name (FILE, LABEL2); \
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fprintf (FILE, ")/16*3"); \
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} while (0)
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC \
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"%{!shared:%{mvms-return-codes:vcrt0.o%s} %{!mvms-return-codes:pcrt0.o%s} \
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crtbegin.o%s} \
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%{!static:%{shared:crtinitS.o%s crtbeginS.o%s}}"
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#undef ENDFILE_SPEC
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#define ENDFILE_SPEC \
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"%{!shared:crtend.o%s} %{!static:%{shared:crtendS.o%s}}"
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#define LINK_GCC_C_SEQUENCE_SPEC "%G"
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#undef LINK_SPEC
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#define LINK_SPEC "%{g*} %{map} %{save-temps} %{shared} %{v}"
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#undef LIB_SPEC
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#define LIB_SPEC ""
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#undef ASM_SPEC
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#define ASM_SPEC \
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"%{mno-gnu-as:-N so -N vms_upcase -W DVLoc_off} %{mconstant-gp:-M const_gp} \
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%{mauto-pic:-M no_plabel} %{source-listing:-ahdl=%b.lis}"
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#undef ASM_OUTPUT_EXTERNAL_LIBCALL
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#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
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do { \
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(*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \
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ASM_OUTPUT_TYPE_DIRECTIVE (FILE, XSTR (FUN, 0), "function"); \
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} while (0)
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/* Set the function to change the names of the division and modulus
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functions. */
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#undef TARGET_INIT_LIBFUNCS
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#define TARGET_INIT_LIBFUNCS ia64_vms_init_libfuncs
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#define NAME__MAIN "__gccmain"
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#define SYMBOL__MAIN __gccmain
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#define CTOR_LIST_BEGIN asm (".global\tLIB$INITIALIZE#\n"); \
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STATIC func_ptr __CTOR_LIST__[1] \
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__attribute__ ((__unused__, section(".ctors"), aligned(sizeof(func_ptr)))) \
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= { (func_ptr) (-1) };
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#undef INIT_SECTION_ASM_OP
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#define INIT_SECTION_ASM_OP ".section\tLIB$INITIALIZE#,\"a\",@progbits"
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#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
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asm (SECTION_OP "\n\tdata4 @fptr(" #FUNC"#)\n"); \
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FORCE_CODE_SECTION_ALIGN \
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asm (TEXT_SECTION_ASM_OP);
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#undef FINI_SECTION_ASM_OP
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/* Maybe same as HPUX? Needs to be checked. */
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#define JMP_BUF_SIZE (8 * 76)
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typedef struct crtl_name_spec
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{
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const char *const name;
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const char *deccname;
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int referenced;
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} crtl_name_spec;
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#include "config/vms/vms-crtl.h"
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/* Alias CRTL names to 32/64bit DECCRTL functions.
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Fixme: This should do a binary search. */
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#define DO_CRTL_NAMES \
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do \
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{ \
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int i; \
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static crtl_name_spec vms_crtl_names[] = CRTL_NAMES; \
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static int malloc64_init = 0; \
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\
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if ((malloc64_init == 0) && TARGET_MALLOC64) \
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{ \
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for (i=0; vms_crtl_names [i].name; i++) \
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{ \
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if (strcmp ("calloc", vms_crtl_names [i].name) == 0) \
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vms_crtl_names [i].deccname = "decc$_calloc64"; \
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else \
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if (strcmp ("malloc", vms_crtl_names [i].name) == 0) \
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vms_crtl_names [i].deccname = "decc$_malloc64"; \
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else \
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if (strcmp ("realloc", vms_crtl_names [i].name) == 0) \
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vms_crtl_names [i].deccname = "decc$_realloc64"; \
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else \
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if (strcmp ("strdup", vms_crtl_names [i].name) == 0) \
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vms_crtl_names [i].deccname = "decc$_strdup64"; \
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} \
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malloc64_init = 1; \
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} \
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for (i=0; vms_crtl_names [i].name; i++) \
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if (!vms_crtl_names [i].referenced && \
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(strcmp (name, vms_crtl_names [i].name) == 0)) \
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{ \
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fprintf (file, "\t.alias %s, \"%s\"\n", \
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name, vms_crtl_names [i].deccname); \
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vms_crtl_names [i].referenced = 1; \
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} \
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} while (0)
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#undef OPTIMIZATION_OPTIONS
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#define OPTIMIZATION_OPTIONS(LEVEL,SIZE) \
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do { \
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flag_merge_constants = 0; \
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ia64_optimization_options ((LEVEL), (SIZE)); \
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} while (0)
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/* Define this to be nonzero if static stack checking is supported. */
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#define STACK_CHECK_STATIC_BUILTIN 1
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#define MD_UNWIND_SUPPORT "config/ia64/vms-unwind.h"
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#define UNW_IVMS_MODE(HEADER) (((HEADER) >> 44) & 0x3L)
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#define MD_UNW_COMPATIBLE_PERSONALITY_P(HEADER) (!UNW_IVMS_MODE (HEADER))
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/* Minimum amount of stack required to recover from an anticipated stack
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overflow detection. The default value conveys an estimate of the amount
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of stack required to propagate an exception. */
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#define STACK_CHECK_PROTECT (24 * 1024)
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#undef ASM_OUTPUT_ALIGNED_DECL_COMMON
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#define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN) \
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ia64_vms_output_aligned_decl_common (FILE, DECL, NAME, SIZE, ALIGN)
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#undef TARGET_VALID_POINTER_MODE
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#define TARGET_VALID_POINTER_MODE ia64_vms_valid_pointer_mode
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#undef TARGET_ASM_NAMED_SECTION
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#define TARGET_ASM_NAMED_SECTION ia64_vms_elf_asm_named_section
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