Subversion Repositories openrisc_2011-10-31

/* This file is tc-alpha.h

   Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003

   2005, 2006, 2007, 2009

   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 3, 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, 51 Franklin Street - Fifth Floor, Boston, MA

   02110-1301, USA.  */

#define TC_ALPHA

#define TARGET_BYTES_BIG_ENDIAN 0

#define WORKING_DOT_WORD

#define TARGET_ARCH                     bfd_arch_alpha

#ifdef TE_FreeBSD

#define ELF_TARGET_FORMAT       "elf64-alpha-freebsd"

#endif

#ifndef ELF_TARGET_FORMAT

#define ELF_TARGET_FORMAT       "elf64-alpha"

#endif

#define TARGET_FORMAT (OUTPUT_FLAVOR == bfd_target_ecoff_flavour        \

                       ? "ecoff-littlealpha"                            \

                       : OUTPUT_FLAVOR == bfd_target_elf_flavour        \

                       ? ELF_TARGET_FORMAT                              \

                       : OUTPUT_FLAVOR == bfd_target_evax_flavour       \

                       ? "vms-alpha"                                    \

                       : "unknown-format")

#define NEED_LITERAL_POOL

#define REPEAT_CONS_EXPRESSIONS

struct fix;

struct alpha_reloc_tag;

extern int alpha_force_relocation (struct fix *);

extern int alpha_fix_adjustable   (struct fix *);

extern unsigned long alpha_gprmask, alpha_fprmask;

extern valueT alpha_gp_value;

#define TC_FORCE_RELOCATION(FIX)        alpha_force_relocation (FIX)

#define tc_fix_adjustable(FIX)          alpha_fix_adjustable (FIX)

#define RELOC_REQUIRES_SYMBOL

/* Values passed to md_apply_fix don't include the symbol value.  */

#define MD_APPLY_SYM_VALUE(FIX) 0

#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

#define TC_VALIDATE_FIX_SUB(FIX, SEG) 1

#define tc_canonicalize_symbol_name evax_shorten_name

#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

#ifdef OBJ_EVAX

#define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) (P2VAR) = 3

#else

#define TC_IMPLICIT_LCOMM_ALIGNMENT(size, align) \

  do                                                    \

    {                                                   \

      align = 0;                                 \

      if (size > 1)                                     \

        {                                               \

          addressT temp = 1;                            \

          while ((size & temp) == 0)                     \

            ++align, temp <<= 1;                        \

        }                                               \

    }                                                   \

  while (0)

#endif

#define md_number_to_chars              number_to_chars_littleendian

extern int tc_get_register (int);

extern void alpha_frob_ecoff_data (void);

#define tc_frob_label(sym) alpha_define_label (sym)

extern void alpha_define_label (symbolS *);

#define md_cons_align(nbytes) alpha_cons_align (nbytes)

extern void alpha_cons_align (int);

#define HANDLE_ALIGN(fragp) alpha_handle_align (fragp)

extern void alpha_handle_align (struct frag *);

#define MAX_MEM_FOR_RS_ALIGN_CODE  (3 + 4 + 8)

#ifdef OBJ_ECOFF

#define tc_frob_file_before_adjust() alpha_frob_file_before_adjust ()

extern void alpha_frob_file_before_adjust (void);

#endif

#define DIFF_EXPR_OK   /* foo-. gets turned into PC relative relocs.  */

#ifdef OBJ_ELF

#define md_elf_section_letter           alpha_elf_section_letter

extern bfd_vma alpha_elf_section_letter (int, char **);

#define md_elf_section_flags            alpha_elf_section_flags

extern flagword alpha_elf_section_flags (flagword, bfd_vma, int);

#endif

/* Whether to add support for explicit !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

#ifndef OBJ_EVAX

/* 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_frob_file_before_fix() alpha_before_fix ()

extern void alpha_before_fix (void);

#endif

#ifdef OBJ_ELF

#define md_end  alpha_elf_md_end

extern void alpha_elf_md_end (void);

#endif

/* 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_reloc;               /* Next !lituse or !gpdisp.  */

  struct alpha_reloc_tag *info;         /* Other members with same sequence.  */

};

/* Initialize the TC_FIX_TYPE field.  */

#define TC_INIT_FIX_DATA(FIX)                                           \

do {                                                                    \

  FIX->tc_fix_data.next_reloc = NULL;                                   \

  FIX->tc_fix_data.info = NULL;                                         \

} while (0)

/* Work with DEBUG5 to print fields in tc_fix_type.  */

#define TC_FIX_DATA_PRINT(STREAM, FIX)                                  \

do {                                                                    \

  if (FIX->tc_fix_data.info)                                            \

    fprintf (STREAM, "\tinfo = 0x%lx, next_reloc = 0x%lx\n", \

             (long) FIX->tc_fix_data.info,                              \

             (long) FIX->tc_fix_data.next_reloc);                       \

} while (0)

#define TARGET_USE_CFIPOP 1

#define tc_cfi_frame_initial_instructions alpha_cfi_frame_initial_instructions

extern void alpha_cfi_frame_initial_instructions (void);

#define DWARF2_LINE_MIN_INSN_LENGTH     4

#define DWARF2_DEFAULT_RETURN_COLUMN    26

#define DWARF2_CIE_DATA_ALIGNMENT       (-8)