| /* This file is tc-alpha.h |
| Copyright (C) 1994, 95, 96, 97, 98, 1999 Free Software Foundation, Inc. |
| Written by Ken Raeburn <raeburn@cygnus.com>. |
| |
| This file is part of GAS, the GNU Assembler. |
| |
| GAS 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 2, or (at your option) |
| any later version. |
| |
| GAS 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 GAS; see the file COPYING. If not, write to the Free |
| Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
| 02111-1307, USA. */ |
| |
| #define TC_ALPHA |
| |
| #define TARGET_BYTES_BIG_ENDIAN 0 |
| |
| #define WORKING_DOT_WORD |
| |
| #define TARGET_ARCH bfd_arch_alpha |
| |
| #define TARGET_FORMAT (OUTPUT_FLAVOR == bfd_target_ecoff_flavour \ |
| ? "ecoff-littlealpha" \ |
| : OUTPUT_FLAVOR == bfd_target_elf_flavour \ |
| ? "elf64-alpha" \ |
| : OUTPUT_FLAVOR == bfd_target_evax_flavour \ |
| ? "vms-alpha" \ |
| : "unknown-format") |
| |
| #define NEED_LITERAL_POOL |
| #define TC_HANDLES_FX_DONE |
| #define REPEAT_CONS_EXPRESSIONS |
| |
| extern int alpha_force_relocation PARAMS ((struct fix *)); |
| extern int alpha_fix_adjustable PARAMS ((struct fix *)); |
| |
| extern unsigned long alpha_gprmask, alpha_fprmask; |
| extern valueT alpha_gp_value; |
| |
| #define TC_FORCE_RELOCATION(FIXP) alpha_force_relocation (FIXP) |
| #define tc_fix_adjustable(FIXP) alpha_fix_adjustable (FIXP) |
| #define RELOC_REQUIRES_SYMBOL |
| |
| /* This expression evaluates to false if the relocation is for a local |
| object for which we still want to do the relocation at runtime. |
| True if we are willing to perform this relocation while building |
| the .o file. This is only used for pcrel relocations. */ |
| |
| #define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \ |
| ((FIX)->fx_addsy == NULL \ |
| || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \ |
| && ! S_IS_WEAK ((FIX)->fx_addsy) \ |
| && S_IS_DEFINED ((FIX)->fx_addsy) \ |
| && ! S_IS_COMMON ((FIX)->fx_addsy))) |
| |
| #define md_convert_frag(b,s,f) as_fatal ("alpha convert_frag\n") |
| #define md_estimate_size_before_relax(f,s) \ |
| (as_fatal("estimate_size_before_relax called"),1) |
| #define md_operand(x) |
| |
| #ifdef OBJ_EVAX |
| |
| /* This field keeps the symbols position in the link section. */ |
| #define OBJ_SYMFIELD_TYPE valueT |
| |
| #define TC_CONS_FIX_NEW(FRAG,OFF,LEN,EXP) \ |
| fix_new_exp (FRAG, OFF, (int)LEN, EXP, 0, \ |
| LEN == 2 ? BFD_RELOC_16 \ |
| : LEN == 4 ? BFD_RELOC_32 \ |
| : LEN == 8 ? BFD_RELOC_64 \ |
| : BFD_RELOC_ALPHA_LINKAGE); |
| #endif |
| |
| #define md_number_to_chars number_to_chars_littleendian |
| |
| extern int tc_get_register PARAMS ((int frame)); |
| extern void alpha_frob_ecoff_data PARAMS ((void)); |
| |
| #define tc_frob_label(sym) alpha_define_label (sym) |
| extern void alpha_define_label PARAMS ((symbolS *)); |
| |
| #define md_cons_align(nbytes) alpha_cons_align (nbytes) |
| extern void alpha_cons_align PARAMS ((int)); |
| |
| #ifdef OBJ_ECOFF |
| #define tc_frob_file_before_adjust() alpha_frob_file_before_adjust () |
| extern void alpha_frob_file_before_adjust PARAMS ((void)); |
| #endif |
| |
| #define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */ |
| |
| #ifdef OBJ_ELF |
| #define ELF_TC_SPECIAL_SECTIONS \ |
| { ".sdata", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_ALPHA_GPREL }, \ |
| { ".sbss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_ALPHA_GPREL }, |
| #endif |
| |
| /* Whether to add support for explict !relocation_op!sequence_number. At the |
| moment, only do this for ELF, though ECOFF could use it as well. */ |
| |
| #ifdef OBJ_ELF |
| #define RELOC_OP_P |
| #endif |
| |
| #ifdef RELOC_OP_P |
| /* Before the relocations are written, reorder them, so that user supplied |
| !lituse relocations follow the appropriate !literal relocations. Also |
| convert the gas-internal relocations to the appropriate linker relocations. |
| */ |
| #define tc_adjust_symtab() alpha_adjust_symtab () |
| extern void alpha_adjust_symtab PARAMS ((void)); |
| |
| /* New fields for supporting explicit relocations (such as !literal to mark |
| where a pointer is loaded from the global table, and !lituse_base to track |
| all of the normal uses of that pointer). */ |
| |
| #define TC_FIX_TYPE struct alpha_fix_tag |
| |
| struct alpha_fix_tag |
| { |
| struct fix *next_lituse; /* next !lituse */ |
| struct alpha_literal_tag *info; /* other members with same sequence */ |
| }; |
| |
| /* Initialize the TC_FIX_TYPE field. */ |
| #define TC_INIT_FIX_DATA(fixP) \ |
| do { \ |
| fixP->tc_fix_data.next_lituse = (struct fix *)0; \ |
| fixP->tc_fix_data.info = (struct alpha_literal_tag *)0; \ |
| } while (0) |
| |
| /* Work with DEBUG5 to print fields in tc_fix_type. */ |
| #define TC_FIX_DATA_PRINT(stream,fixP) \ |
| do { \ |
| if (fixP->tc_fix_data.info) \ |
| fprintf (stderr, "\tinfo = 0x%lx, next_lituse = 0x%lx\n", \ |
| (long)fixP->tc_fix_data.info, \ |
| (long)fixP->tc_fix_data.next_lituse); \ |
| } while (0) |
| #endif |