236 lines
7 KiB
C
236 lines
7 KiB
C
/* This file is tc-m68k.h
|
|
Copyright 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
|
|
1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
|
|
Free Software Foundation, Inc.
|
|
|
|
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_M68K 1
|
|
|
|
#ifdef ANSI_PROTOTYPES
|
|
struct fix;
|
|
#endif
|
|
|
|
#define TARGET_BYTES_BIG_ENDIAN 1
|
|
|
|
#ifdef OBJ_AOUT
|
|
#ifdef TE_SUN3
|
|
#define TARGET_FORMAT "a.out-sunos-big"
|
|
#endif
|
|
#ifdef TE_NetBSD
|
|
#define TARGET_FORMAT "a.out-m68k-netbsd"
|
|
#endif
|
|
#ifdef TE_LINUX
|
|
#define TARGET_FORMAT "a.out-m68k-linux"
|
|
#endif
|
|
#ifndef TARGET_FORMAT
|
|
#define TARGET_FORMAT "a.out-zero-big"
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef OBJ_ELF
|
|
#define TARGET_FORMAT "elf32-m68k"
|
|
#endif
|
|
|
|
#ifdef TE_APOLLO
|
|
#define COFF_MAGIC APOLLOM68KMAGIC
|
|
#define COFF_AOUTHDR_MAGIC APOLLO_COFF_VERSION_NUMBER
|
|
#undef OBJ_COFF_OMIT_OPTIONAL_HEADER
|
|
#endif
|
|
|
|
#ifdef TE_LYNX
|
|
#define TARGET_FORMAT "coff-m68k-lynx"
|
|
#endif
|
|
#ifdef TE_AUX
|
|
#define TARGET_FORMAT "coff-m68k-aux"
|
|
#endif
|
|
#ifdef TE_DELTA
|
|
#define TARGET_FORMAT "coff-m68k-sysv"
|
|
#endif
|
|
|
|
#ifndef COFF_MAGIC
|
|
#define COFF_MAGIC MC68MAGIC
|
|
#endif
|
|
#define BFD_ARCH bfd_arch_m68k /* for non-BFD_ASSEMBLER */
|
|
#define TARGET_ARCH bfd_arch_m68k /* BFD_ASSEMBLER */
|
|
#define COFF_FLAGS F_AR32W
|
|
#define TC_COUNT_RELOC(x) ((x)->fx_addsy||(x)->fx_subsy)
|
|
|
|
#define TC_COFF_FIX2RTYPE(FIX) tc_coff_fix2rtype(FIX)
|
|
#define TC_COFF_SIZEMACHDEP(frag) tc_coff_sizemachdep(frag)
|
|
extern int tc_coff_sizemachdep PARAMS ((struct frag *));
|
|
#ifdef TE_SUN3
|
|
/* This variable contains the value to write out at the beginning of
|
|
the a.out file. The 2<<16 means that this is a 68020 file instead
|
|
of an old-style 68000 file */
|
|
|
|
#define DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE (2<<16|OMAGIC); /* Magic byte for file header */
|
|
#endif /* TE_SUN3 */
|
|
|
|
#ifndef AOUT_MACHTYPE
|
|
#define AOUT_MACHTYPE m68k_aout_machtype
|
|
extern int m68k_aout_machtype;
|
|
#endif
|
|
|
|
#define tc_comment_chars m68k_comment_chars
|
|
extern const char *m68k_comment_chars;
|
|
|
|
#define tc_crawl_symbol_chain(a) {;} /* not used */
|
|
#define tc_headers_hook(a) {;} /* not used */
|
|
#define tc_aout_pre_write_hook(x) {;} /* not used */
|
|
|
|
#define LISTING_WORD_SIZE 2 /* A word is 2 bytes */
|
|
#define LISTING_LHS_WIDTH 2 /* One word on the first line */
|
|
#define LISTING_LHS_WIDTH_SECOND 2 /* One word on the second line */
|
|
#define LISTING_LHS_CONT_LINES 4/* And 4 lines max */
|
|
#define LISTING_HEADER "68K GAS "
|
|
|
|
#ifndef REGISTER_PREFIX
|
|
#define REGISTER_PREFIX '%'
|
|
#endif
|
|
|
|
#if !defined (REGISTER_PREFIX_OPTIONAL)
|
|
#if defined (M68KCOFF) || defined (OBJ_ELF)
|
|
#ifndef BFD_ASSEMBLER
|
|
#define LOCAL_LABEL(name) (name[0] == '.' \
|
|
&& (name[1] == 'L' || name[1] == '.'))
|
|
#endif /* ! BFD_ASSEMBLER */
|
|
#define REGISTER_PREFIX_OPTIONAL 0
|
|
#else /* ! (COFF || ELF) */
|
|
#define REGISTER_PREFIX_OPTIONAL 1
|
|
#endif /* ! (COFF || ELF) */
|
|
#endif /* not def REGISTER_PREFIX and not def OPTIONAL_REGISTER_PREFIX */
|
|
|
|
#ifdef TE_DELTA
|
|
/* On the Delta, `%' can occur within a label name, but not as the
|
|
initial character. */
|
|
#define LEX_PCT LEX_NAME
|
|
/* On the Delta, `~' can start a label name, but is converted to '.'. */
|
|
#define LEX_TILDE LEX_BEGIN_NAME
|
|
#define tc_canonicalize_symbol_name(s) ((*(s) == '~' ? *(s) = '.' : '.'), s)
|
|
/* On the Delta, dots are not required before pseudo-ops. */
|
|
#define NO_PSEUDO_DOT 1
|
|
#ifndef BFD_ASSEMBLER
|
|
#undef LOCAL_LABEL
|
|
#define LOCAL_LABEL(name) \
|
|
(name[0] == '.' || (name[0] == 'L' && name[1] == '%'))
|
|
#endif
|
|
#endif
|
|
|
|
extern void m68k_mri_mode_change PARAMS ((int));
|
|
#define MRI_MODE_CHANGE(i) m68k_mri_mode_change (i)
|
|
|
|
extern int m68k_conditional_pseudoop PARAMS ((pseudo_typeS *));
|
|
#define tc_conditional_pseudoop(pop) m68k_conditional_pseudoop (pop)
|
|
|
|
extern void m68k_frob_label PARAMS ((symbolS *));
|
|
#define tc_frob_label(sym) m68k_frob_label (sym)
|
|
|
|
extern void m68k_flush_pending_output PARAMS ((void));
|
|
#define md_flush_pending_output() m68k_flush_pending_output ()
|
|
|
|
extern void m68k_frob_symbol PARAMS ((symbolS *));
|
|
|
|
#ifdef BFD_ASSEMBLER
|
|
|
|
#define tc_frob_symbol(sym,punt) \
|
|
do \
|
|
{ \
|
|
if (S_GET_SEGMENT (sym) == reg_section) \
|
|
punt = 1; \
|
|
m68k_frob_symbol (sym); \
|
|
} \
|
|
while (0)
|
|
|
|
#define NO_RELOC BFD_RELOC_NONE
|
|
#define RELAX_RELOC_ABS8 BFD_RELOC_8
|
|
#define RELAX_RELOC_ABS16 BFD_RELOC_16
|
|
#define RELAX_RELOC_ABS32 BFD_RELOC_32
|
|
#define RELAX_RELOC_PC8 BFD_RELOC_8_PCREL
|
|
#define RELAX_RELOC_PC16 BFD_RELOC_16_PCREL
|
|
#define RELAX_RELOC_PC32 BFD_RELOC_32_PCREL
|
|
|
|
#ifdef OBJ_ELF
|
|
#define tc_fix_adjustable(X) tc_m68k_fix_adjustable(X)
|
|
extern int tc_m68k_fix_adjustable PARAMS ((struct fix *));
|
|
|
|
/* Target *-*-elf implies an embedded target. No shared libs.
|
|
*-*-uclinux also requires special casing to prevent GAS from
|
|
generating unsupported R_68K_PC16 relocs. */
|
|
#define EXTERN_FORCE_RELOC \
|
|
((strcmp (TARGET_OS, "elf") != 0) && (strcmp (TARGET_OS, "uclinux") != 0))
|
|
|
|
/* Values passed to md_apply_fix3 don't include symbol values. */
|
|
#define MD_APPLY_SYM_VALUE(FIX) 0
|
|
|
|
#define elf_tc_final_processing m68k_elf_final_processing
|
|
extern void m68k_elf_final_processing PARAMS ((void));
|
|
#endif
|
|
|
|
#else /* ! BFD_ASSEMBLER */
|
|
|
|
#define tc_frob_coff_symbol(sym) m68k_frob_symbol (sym)
|
|
|
|
#define NO_RELOC 0
|
|
#define RELAX_RELOC_ABS8 0
|
|
#define RELAX_RELOC_ABS16 0
|
|
#define RELAX_RELOC_ABS32 0
|
|
#define RELAX_RELOC_PC8 0
|
|
#define RELAX_RELOC_PC16 0
|
|
#define RELAX_RELOC_PC32 0
|
|
|
|
#endif /* ! BFD_ASSEMBLER */
|
|
|
|
#define DIFF_EXPR_OK
|
|
|
|
extern void m68k_init_after_args PARAMS ((void));
|
|
#define tc_init_after_args m68k_init_after_args
|
|
|
|
extern int m68k_parse_long_option PARAMS ((char *));
|
|
#define md_parse_long_option m68k_parse_long_option
|
|
|
|
#define md_operand(x)
|
|
|
|
#define TARGET_ARCH bfd_arch_m68k
|
|
|
|
extern struct relax_type md_relax_table[];
|
|
#define TC_GENERIC_RELAX_TABLE md_relax_table
|
|
|
|
/* We can't do a byte jump to the next instruction, so in that case
|
|
force word mode by faking AIM. */
|
|
#define md_prepare_relax_scan(fragP, address, aim, this_state, this_type) \
|
|
do \
|
|
{ \
|
|
if (aim == 0 && this_type->rlx_forward == 127) \
|
|
aim = 128; \
|
|
} \
|
|
while (0)
|
|
|
|
#define DWARF2_LINE_MIN_INSN_LENGTH 2
|
|
|
|
/* We want .cfi_* pseudo-ops for generating unwind info. */
|
|
#define TARGET_USE_CFIPOP 1
|
|
|
|
#define DWARF2_DEFAULT_RETURN_COLUMN 24
|
|
#define DWARF2_CIE_DATA_ALIGNMENT (-4)
|
|
|
|
#define tc_regname_to_dw2regnum tc_m68k_regname_to_dw2regnum
|
|
extern int tc_m68k_regname_to_dw2regnum (const char *regname);
|
|
|
|
#define tc_cfi_frame_initial_instructions tc_m68k_frame_initial_instructions
|
|
extern void tc_m68k_frame_initial_instructions (void);
|