| /* Override definitions in elfos.h to be correct for IA64. |
| |
| Copyright (C) 2000-2015 Free Software Foundation, Inc. |
| |
| 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. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #undef TARGET_INIT_LIBFUNCS |
| #define TARGET_INIT_LIBFUNCS ia64_sysv4_init_libfuncs |
| |
| /* We want DWARF2 as specified by the IA64 ABI. */ |
| #undef PREFERRED_DEBUGGING_TYPE |
| #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG |
| |
| /* Stabs does not work properly for 64-bit targets. */ |
| #undef DBX_DEBUGGING_INFO |
| |
| /* Various pseudo-ops for which the Intel assembler uses non-standard |
| definitions. */ |
| |
| #undef STRING_ASM_OP |
| #define STRING_ASM_OP "\tstringz\t" |
| |
| #undef SKIP_ASM_OP |
| #define SKIP_ASM_OP "\t.skip\t" |
| |
| #undef COMMON_ASM_OP |
| #define COMMON_ASM_OP "\t.common\t" |
| |
| #undef ASCII_DATA_ASM_OP |
| #define ASCII_DATA_ASM_OP "\tstring\t" |
| |
| /* ia64-specific options for gas |
| ??? ia64 gas doesn't accept standard svr4 assembler options? */ |
| #undef ASM_SPEC |
| #define ASM_SPEC "-x %{mconstant-gp} %{mauto-pic} %(asm_extra)" |
| |
| /* ??? Unfortunately, .lcomm doesn't work, because it puts things in either |
| .bss or .sbss, and we can't control the decision of which is used. When |
| I use .lcomm, I get a cryptic "Section group has no member" error from |
| the Intel simulator. So we must explicitly put variables in .bss |
| instead. This matters only if we care about the Intel assembler. */ |
| |
| /* This is asm_output_aligned_bss from varasm.c without the |
| (*targetm.asm_out.globalize_label) call at the beginning. */ |
| |
| /* This is for final.c, because it is used by ASM_DECLARE_OBJECT_NAME. */ |
| extern int size_directive_output; |
| |
| #undef ASM_OUTPUT_ALIGNED_LOCAL |
| #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \ |
| do { \ |
| if ((DECL) && sdata_symbolic_operand (XEXP (DECL_RTL (DECL), 0), Pmode)) \ |
| switch_to_section (sbss_section); \ |
| else \ |
| switch_to_section (bss_section); \ |
| ASM_OUTPUT_ALIGN (FILE, floor_log2 ((ALIGN) / BITS_PER_UNIT)); \ |
| ASM_DECLARE_OBJECT_NAME (FILE, NAME, DECL); \ |
| ASM_OUTPUT_SKIP (FILE, SIZE ? SIZE : 1); \ |
| } while (0) |
| |
| /* The # tells the Intel assembler that this is not a register name. |
| However, we can't emit the # in a label definition, so we set a variable |
| in ASM_OUTPUT_LABEL to control whether we want the postfix here or not. |
| We append the # to the label name, but since NAME can be an expression |
| we have to scan it for a non-label character and insert the # there. */ |
| |
| #undef ASM_OUTPUT_LABELREF |
| #define ASM_OUTPUT_LABELREF(STREAM, NAME) \ |
| do { \ |
| const char *name_ = NAME; \ |
| if (*name_ == '*') \ |
| name_++; \ |
| else \ |
| fputs (user_label_prefix, STREAM); \ |
| fputs (name_, STREAM); \ |
| if (!ia64_asm_output_label) \ |
| fputc ('#', STREAM); \ |
| } while (0) |
| |
| /* Intel assembler requires both flags and type if declaring a non-predefined |
| section. */ |
| #undef INIT_SECTION_ASM_OP |
| #define INIT_SECTION_ASM_OP "\t.section\t.init,\"ax\",\"progbits\"" |
| #undef FINI_SECTION_ASM_OP |
| #define FINI_SECTION_ASM_OP "\t.section\t.fini,\"ax\",\"progbits\"" |
| |
| #define DBX_REGISTER_NUMBER(REGNO) \ |
| ia64_dbx_register_number(REGNO) |
| |
| #undef SIZE_TYPE |
| #define SIZE_TYPE "long unsigned int" |
| |
| #undef PTRDIFF_TYPE |
| #define PTRDIFF_TYPE "long int" |
| |
| #undef WCHAR_TYPE |
| #define WCHAR_TYPE "int" |
| |
| #undef WCHAR_TYPE_SIZE |
| #define WCHAR_TYPE_SIZE 32 |
| |
| /* We redefine this to use the ia64 .proc pseudo-op. */ |
| |
| #undef ASM_DECLARE_FUNCTION_NAME |
| #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ |
| ia64_start_function(FILE,NAME,DECL) |
| |
| /* We redefine this to use the ia64 .endp pseudo-op. */ |
| |
| #undef ASM_DECLARE_FUNCTION_SIZE |
| #define ASM_DECLARE_FUNCTION_SIZE(FILE, NAME, DECL) \ |
| do { \ |
| fputs ("\t.endp ", FILE); \ |
| assemble_name (FILE, NAME); \ |
| fputc ('\n', FILE); \ |
| } while (0) |
| |
| /* Override default elf definition. */ |
| #undef TARGET_ASM_RELOC_RW_MASK |
| #define TARGET_ASM_RELOC_RW_MASK ia64_reloc_rw_mask |
| #undef TARGET_ASM_SELECT_RTX_SECTION |
| #define TARGET_ASM_SELECT_RTX_SECTION ia64_select_rtx_section |
| |
| #define SDATA_SECTION_ASM_OP "\t.sdata" |
| #define SBSS_SECTION_ASM_OP "\t.sbss" |