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/* This file is tc-alpha.h
Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
2005, 2006, 2007
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)
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