166 lines
5.5 KiB
C
166 lines
5.5 KiB
C
/* This file is tc-alpha.h
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Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
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Free Software Foundation, Inc.
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Written by Ken Raeburn <raeburn@cygnus.com>.
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This file is part of GAS, the GNU Assembler.
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GAS 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 2, or (at your option)
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any later version.
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GAS 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 GAS; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#define TC_ALPHA
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#define TARGET_BYTES_BIG_ENDIAN 0
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#define WORKING_DOT_WORD
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#define TARGET_ARCH bfd_arch_alpha
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#ifdef TE_FreeBSD
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#define ELF_TARGET_FORMAT "elf64-alpha-freebsd"
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#endif
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#ifndef ELF_TARGET_FORMAT
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#define ELF_TARGET_FORMAT "elf64-alpha"
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#endif
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#define TARGET_FORMAT (OUTPUT_FLAVOR == bfd_target_ecoff_flavour \
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? "ecoff-littlealpha" \
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: OUTPUT_FLAVOR == bfd_target_elf_flavour \
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? ELF_TARGET_FORMAT \
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: OUTPUT_FLAVOR == bfd_target_evax_flavour \
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? "vms-alpha" \
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: "unknown-format")
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#define NEED_LITERAL_POOL
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#define REPEAT_CONS_EXPRESSIONS
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extern int alpha_force_relocation PARAMS ((struct fix *));
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extern int alpha_fix_adjustable PARAMS ((struct fix *));
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extern unsigned long alpha_gprmask, alpha_fprmask;
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extern valueT alpha_gp_value;
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#define TC_FORCE_RELOCATION(FIXP) alpha_force_relocation (FIXP)
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#define tc_fix_adjustable(FIXP) alpha_fix_adjustable (FIXP)
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#define RELOC_REQUIRES_SYMBOL
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/* This expression evaluates to false if the relocation is for a local
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object for which we still want to do the relocation at runtime.
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True if we are willing to perform this relocation while building
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the .o file. This is only used for pcrel relocations. */
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#define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \
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((FIX)->fx_addsy == NULL \
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|| (! S_IS_EXTERNAL ((FIX)->fx_addsy) \
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&& ! S_IS_WEAK ((FIX)->fx_addsy) \
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&& S_IS_DEFINED ((FIX)->fx_addsy) \
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&& ! S_IS_COMMON ((FIX)->fx_addsy)))
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#define md_convert_frag(b,s,f) as_fatal ("alpha convert_frag\n")
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#define md_estimate_size_before_relax(f,s) \
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(as_fatal ("estimate_size_before_relax called"),1)
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#define md_operand(x)
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#ifdef OBJ_EVAX
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/* This field keeps the symbols position in the link section. */
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#define OBJ_SYMFIELD_TYPE valueT
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#define TC_CONS_FIX_NEW(FRAG,OFF,LEN,EXP) \
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fix_new_exp (FRAG, OFF, (int)LEN, EXP, 0, \
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LEN == 2 ? BFD_RELOC_16 \
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: LEN == 4 ? BFD_RELOC_32 \
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: LEN == 8 ? BFD_RELOC_64 \
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: BFD_RELOC_ALPHA_LINKAGE);
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#endif
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#define md_number_to_chars number_to_chars_littleendian
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extern int tc_get_register PARAMS ((int frame));
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extern void alpha_frob_ecoff_data PARAMS ((void));
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#define tc_frob_label(sym) alpha_define_label (sym)
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extern void alpha_define_label PARAMS ((symbolS *));
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#define md_cons_align(nbytes) alpha_cons_align (nbytes)
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extern void alpha_cons_align PARAMS ((int));
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#define HANDLE_ALIGN(fragp) alpha_handle_align (fragp)
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extern void alpha_handle_align PARAMS ((struct frag *));
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#define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4 + 8)
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#ifdef OBJ_ECOFF
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#define tc_frob_file_before_adjust() alpha_frob_file_before_adjust ()
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extern void alpha_frob_file_before_adjust PARAMS ((void));
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#endif
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#define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */
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#ifdef OBJ_ELF
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#define ELF_TC_SPECIAL_SECTIONS \
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{ ".sdata", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_ALPHA_GPREL }, \
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{ ".sbss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_ALPHA_GPREL },
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#define md_elf_section_letter alpha_elf_section_letter
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extern int alpha_elf_section_letter PARAMS ((int, char **));
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#define md_elf_section_flags alpha_elf_section_flags
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extern flagword alpha_elf_section_flags PARAMS ((flagword, int, int));
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#endif
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/* Whether to add support for explict !relocation_op!sequence_number. At the
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moment, only do this for ELF, though ECOFF could use it as well. */
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#ifdef OBJ_ELF
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#define RELOC_OP_P
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#endif
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/* Before the relocations are written, reorder them, so that user
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supplied !lituse relocations follow the appropriate !literal
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relocations. Also convert the gas-internal relocations to the
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appropriate linker relocations. */
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#define tc_adjust_symtab() alpha_adjust_symtab ()
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extern void alpha_adjust_symtab PARAMS ((void));
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/* New fields for supporting explicit relocations (such as !literal to mark
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where a pointer is loaded from the global table, and !lituse_base to track
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all of the normal uses of that pointer). */
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#define TC_FIX_TYPE struct alpha_fix_tag
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struct alpha_fix_tag
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{
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struct fix *next_reloc; /* next !lituse or !gpdisp */
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struct alpha_reloc_tag *info; /* other members with same sequence */
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};
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/* Initialize the TC_FIX_TYPE field. */
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#define TC_INIT_FIX_DATA(fixP) \
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do { \
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fixP->tc_fix_data.next_reloc = (struct fix *)0; \
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fixP->tc_fix_data.info = (struct alpha_reloc_tag *)0; \
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} while (0)
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/* Work with DEBUG5 to print fields in tc_fix_type. */
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#define TC_FIX_DATA_PRINT(stream,fixP) \
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do { \
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if (fixP->tc_fix_data.info) \
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fprintf (stderr, "\tinfo = 0x%lx, next_reloc = 0x%lx\n", \
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(long)fixP->tc_fix_data.info, \
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(long)fixP->tc_fix_data.next_reloc); \
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} while (0)
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#define DWARF2_LINE_MIN_INSN_LENGTH 4
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