[thirdparty/binutils-gdb.git] / gas / config / tc-m68k.h

/* This file is tc-m68k.h
   Copyright 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
   1998, 1999, 2000, 2001, 2002, 2003
   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.  */
#define EXTERN_FORCE_RELOC (strcmp (TARGET_OS, "elf") != 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_WORD_SIZE 32
#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);
Commit	Line	Data
252b5132	1	/* This file is tc-m68k.h
f7e42eb4	2	Copyright 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
ae6063d4	3	1998, 1999, 2000, 2001, 2002, 2003
252b5132 RH	4	Free Software Foundation, Inc.
	5
	6	This file is part of GAS, the GNU Assembler.
	7
	8	GAS is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 2, or (at your option)
	11	any later version.
	12
	13	GAS is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	GNU General Public License for more details.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with GAS; see the file COPYING. If not, write to the Free
	20	Software Foundation, 59 Temple Place - Suite 330, Boston, MA
	21	02111-1307, USA. */
	22
	23	#define TC_M68K 1
	24
	25	#ifdef ANSI_PROTOTYPES
252b5132 RH	26	struct fix;
	27	#endif
	28
	29	#define TARGET_BYTES_BIG_ENDIAN 1
	30
	31	#ifdef OBJ_AOUT
	32	#ifdef TE_SUN3
	33	#define TARGET_FORMAT "a.out-sunos-big"
	34	#endif
	35	#ifdef TE_NetBSD
	36	#define TARGET_FORMAT "a.out-m68k-netbsd"
	37	#endif
	38	#ifdef TE_LINUX
	39	#define TARGET_FORMAT "a.out-m68k-linux"
	40	#endif
	41	#ifndef TARGET_FORMAT
	42	#define TARGET_FORMAT "a.out-zero-big"
	43	#endif
	44	#endif
	45
	46	#ifdef OBJ_ELF
	47	#define TARGET_FORMAT "elf32-m68k"
	48	#endif
	49
	50	#ifdef TE_APOLLO
	51	#define COFF_MAGIC APOLLOM68KMAGIC
	52	#define COFF_AOUTHDR_MAGIC APOLLO_COFF_VERSION_NUMBER
	53	#undef OBJ_COFF_OMIT_OPTIONAL_HEADER
	54	#endif
	55
	56	#ifdef TE_LYNX
	57	#define TARGET_FORMAT "coff-m68k-lynx"
	58	#endif
	59	#ifdef TE_AUX
	60	#define TARGET_FORMAT "coff-m68k-aux"
	61	#endif
	62	#ifdef TE_DELTA
	63	#define TARGET_FORMAT "coff-m68k-sysv"
	64	#endif
	65
	66	#ifndef COFF_MAGIC
	67	#define COFF_MAGIC MC68MAGIC
	68	#endif
	69	#define BFD_ARCH bfd_arch_m68k /* for non-BFD_ASSEMBLER */
	70	#define TARGET_ARCH bfd_arch_m68k /* BFD_ASSEMBLER */
	71	#define COFF_FLAGS F_AR32W
	72	#define TC_COUNT_RELOC(x) ((x)->fx_addsy\|\|(x)->fx_subsy)
	73
a161fe53	74	#define TC_COFF_FIX2RTYPE(FIX) tc_coff_fix2rtype(FIX)
252b5132 RH	75	#define TC_COFF_SIZEMACHDEP(frag) tc_coff_sizemachdep(frag)
	76	extern int tc_coff_sizemachdep PARAMS ((struct frag *));
	77	#ifdef TE_SUN3
	78	/* This variable contains the value to write out at the beginning of
	79	the a.out file. The 2<<16 means that this is a 68020 file instead
	80	of an old-style 68000 file */
	81
	82	#define DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE (2<<16\|OMAGIC); /* Magic byte for file header */
	83	#endif /* TE_SUN3 */
	84
	85	#ifndef AOUT_MACHTYPE
	86	#define AOUT_MACHTYPE m68k_aout_machtype
	87	extern int m68k_aout_machtype;
	88	#endif
	89
	90	#define tc_comment_chars m68k_comment_chars
	91	extern const char *m68k_comment_chars;
	92
	93	#define tc_crawl_symbol_chain(a) {;} /* not used */
	94	#define tc_headers_hook(a) {;} /* not used */
	95	#define tc_aout_pre_write_hook(x) {;} /* not used */
	96
	97	#define LISTING_WORD_SIZE 2 /* A word is 2 bytes */
	98	#define LISTING_LHS_WIDTH 2 /* One word on the first line */
	99	#define LISTING_LHS_WIDTH_SECOND 2 /* One word on the second line */
	100	#define LISTING_LHS_CONT_LINES 4/* And 4 lines max */
	101	#define LISTING_HEADER "68K GAS "
	102
	103	#ifndef REGISTER_PREFIX
	104	#define REGISTER_PREFIX '%'
	105	#endif
	106
	107	#if !defined (REGISTER_PREFIX_OPTIONAL)
	108	#if defined (M68KCOFF) \|\| defined (OBJ_ELF)
	109	#ifndef BFD_ASSEMBLER
	110	#define LOCAL_LABEL(name) (name[0] == '.' \
	111	&& (name[1] == 'L' \|\| name[1] == '.'))
	112	#endif /* ! BFD_ASSEMBLER */
	113	#define REGISTER_PREFIX_OPTIONAL 0
	114	#else /* ! (COFF \|\| ELF) */
	115	#define REGISTER_PREFIX_OPTIONAL 1
	116	#endif /* ! (COFF \|\| ELF) */
	117	#endif /* not def REGISTER_PREFIX and not def OPTIONAL_REGISTER_PREFIX */
	118
	119	#ifdef TE_DELTA
	120	/* On the Delta, `%' can occur within a label name, but not as the
	121	initial character. */
	122	#define LEX_PCT LEX_NAME
81d4177b	123	/* On the Delta, `~' can start a label name, but is converted to '.'. */
252b5132 RH	124	#define LEX_TILDE LEX_BEGIN_NAME
	125	#define tc_canonicalize_symbol_name(s) (((s) == '~' ? (s) = '.' : '.'), s)
	126	/* On the Delta, dots are not required before pseudo-ops. */
abd63a32	127	#define NO_PSEUDO_DOT 1
252b5132 RH	128	#ifndef BFD_ASSEMBLER
	129	#undef LOCAL_LABEL
	130	#define LOCAL_LABEL(name) \
	131	(name[0] == '.' \|\| (name[0] == 'L' && name[1] == '%'))
	132	#endif
	133	#endif
	134
	135	extern void m68k_mri_mode_change PARAMS ((int));
	136	#define MRI_MODE_CHANGE(i) m68k_mri_mode_change (i)
	137
	138	extern int m68k_conditional_pseudoop PARAMS ((pseudo_typeS *));
	139	#define tc_conditional_pseudoop(pop) m68k_conditional_pseudoop (pop)
	140
49309057	141	extern void m68k_frob_label PARAMS ((symbolS *));
252b5132 RH	142	#define tc_frob_label(sym) m68k_frob_label (sym)
	143
	144	extern void m68k_flush_pending_output PARAMS ((void));
	145	#define md_flush_pending_output() m68k_flush_pending_output ()
	146
49309057	147	extern void m68k_frob_symbol PARAMS ((symbolS *));
252b5132 RH	148
	149	#ifdef BFD_ASSEMBLER
	150
	151	#define tc_frob_symbol(sym,punt) \
	152	do \
	153	{ \
	154	if (S_GET_SEGMENT (sym) == reg_section) \
	155	punt = 1; \
	156	m68k_frob_symbol (sym); \
	157	} \
	158	while (0)
	159
	160	#define NO_RELOC BFD_RELOC_NONE
5cbdaa77 NC	161	#define RELAX_RELOC_ABS8 BFD_RELOC_8
	162	#define RELAX_RELOC_ABS16 BFD_RELOC_16
	163	#define RELAX_RELOC_ABS32 BFD_RELOC_32
	164	#define RELAX_RELOC_PC8 BFD_RELOC_8_PCREL
	165	#define RELAX_RELOC_PC16 BFD_RELOC_16_PCREL
	166	#define RELAX_RELOC_PC32 BFD_RELOC_32_PCREL
252b5132 RH	167
252b5132 RH	168	#ifdef OBJ_ELF
8f36cd18 AO	169	#define tc_fix_adjustable(X) tc_m68k_fix_adjustable(X)
	170	extern int tc_m68k_fix_adjustable PARAMS ((struct fix *));
	171
a161fe53 AM	172	/* Target --elf implies an embedded target. No shared libs. */
	173	#define EXTERN_FORCE_RELOC (strcmp (TARGET_OS, "elf") != 0)
	174
	175	/* Values passed to md_apply_fix3 don't include symbol values. */
	176	#define MD_APPLY_SYM_VALUE(FIX) 0
02198638	177
0d96863f CM	178	#define elf_tc_final_processing m68k_elf_final_processing
0d96863f CM	179	extern void m68k_elf_final_processing PARAMS ((void));
252b5132 RH	180	#endif
252b5132 RH	181
252b5132 RH	182	#else /* ! BFD_ASSEMBLER */
	183
	184	#define tc_frob_coff_symbol(sym) m68k_frob_symbol (sym)
	185
5cbdaa77 NC	186	#define NO_RELOC 0
	187	#define RELAX_RELOC_ABS8 0
	188	#define RELAX_RELOC_ABS16 0
	189	#define RELAX_RELOC_ABS32 0
	190	#define RELAX_RELOC_PC8 0
	191	#define RELAX_RELOC_PC16 0
	192	#define RELAX_RELOC_PC32 0
252b5132 RH	193
	194	#endif /* ! BFD_ASSEMBLER */
	195
	196	#define DIFF_EXPR_OK
	197
	198	extern void m68k_init_after_args PARAMS ((void));
	199	#define tc_init_after_args m68k_init_after_args
	200
	201	extern int m68k_parse_long_option PARAMS ((char *));
	202	#define md_parse_long_option m68k_parse_long_option
	203
	204	#define md_operand(x)
	205
	206	#define TARGET_WORD_SIZE 32
	207	#define TARGET_ARCH bfd_arch_m68k
	208
	209	extern struct relax_type md_relax_table[];
	210	#define TC_GENERIC_RELAX_TABLE md_relax_table
	211
d7861ad2 AM	212	/* We can't do a byte jump to the next instruction, so in that case
d7861ad2 AM	213	force word mode by faking AIM. */
252b5132	214	#define md_prepare_relax_scan(fragP, address, aim, this_state, this_type) \
d7861ad2 AM	215	do \
	216	{ \
	217	if (aim == 0 && this_type->rlx_forward == 127) \
	218	aim = 128; \
	219	} \
	220	while (0)
f27a3839 AS	221
f27a3839 AS	222	#define DWARF2_LINE_MIN_INSN_LENGTH 2
c04898f8 AS	223
	224	/* We want .cfi_* pseudo-ops for generating unwind info. */
	225	#define TARGET_USE_CFIPOP 1
	226
	227	#define DWARF2_DEFAULT_RETURN_COLUMN 24
	228	#define DWARF2_CIE_DATA_ALIGNMENT (-4)
	229
	230	#define tc_regname_to_dw2regnum tc_m68k_regname_to_dw2regnum
	231	extern int tc_m68k_regname_to_dw2regnum (const char *regname);
	232
	233	#define tc_cfi_frame_initial_instructions tc_m68k_frame_initial_instructions
	234	extern void tc_m68k_frame_initial_instructions (void);