188 lines
5.6 KiB
C
188 lines
5.6 KiB
C
/* This file is tc-alpha.h
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Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
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2005, 2006, 2007, 2009
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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 3, 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, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, 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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struct fix;
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struct alpha_reloc_tag;
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extern int alpha_force_relocation (struct fix *);
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extern int alpha_fix_adjustable (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(FIX) alpha_force_relocation (FIX)
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#define tc_fix_adjustable(FIX) alpha_fix_adjustable (FIX)
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#define RELOC_REQUIRES_SYMBOL
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/* Values passed to md_apply_fix don't include the symbol value. */
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#define MD_APPLY_SYM_VALUE(FIX) 0
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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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#define TC_VALIDATE_FIX_SUB(FIX, SEG) 1
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#define tc_canonicalize_symbol_name evax_shorten_name
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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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#ifdef OBJ_EVAX
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#define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) (P2VAR) = 3
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#else
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#define TC_IMPLICIT_LCOMM_ALIGNMENT(size, align) \
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do \
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{ \
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align = 0; \
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if (size > 1) \
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{ \
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addressT temp = 1; \
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while ((size & temp) == 0) \
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++align, temp <<= 1; \
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} \
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} \
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while (0)
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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 (int);
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extern void alpha_frob_ecoff_data (void);
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#define tc_frob_label(sym) alpha_define_label (sym)
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extern void alpha_define_label (symbolS *);
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#define md_cons_align(nbytes) alpha_cons_align (nbytes)
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extern void alpha_cons_align (int);
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#define HANDLE_ALIGN(fragp) alpha_handle_align (fragp)
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extern void alpha_handle_align (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 (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 md_elf_section_letter alpha_elf_section_letter
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extern bfd_vma alpha_elf_section_letter (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 (flagword, bfd_vma, int);
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#endif
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/* Whether to add support for explicit !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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#ifndef OBJ_EVAX
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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_frob_file_before_fix() alpha_before_fix ()
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extern void alpha_before_fix (void);
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#endif
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#ifdef OBJ_ELF
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#define md_end alpha_elf_md_end
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extern void alpha_elf_md_end (void);
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#endif
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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(FIX) \
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do { \
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FIX->tc_fix_data.next_reloc = NULL; \
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FIX->tc_fix_data.info = NULL; \
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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, FIX) \
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do { \
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if (FIX->tc_fix_data.info) \
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fprintf (STREAM, "\tinfo = 0x%lx, next_reloc = 0x%lx\n", \
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(long) FIX->tc_fix_data.info, \
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(long) FIX->tc_fix_data.next_reloc); \
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} while (0)
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#define TARGET_USE_CFIPOP 1
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#define tc_cfi_frame_initial_instructions alpha_cfi_frame_initial_instructions
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extern void alpha_cfi_frame_initial_instructions (void);
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#define DWARF2_LINE_MIN_INSN_LENGTH 4
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#define DWARF2_DEFAULT_RETURN_COLUMN 26
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#define DWARF2_CIE_DATA_ALIGNMENT (-8)
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