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

/* This file is tc-m68k.h
   Copyright (C) 1987, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
   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(fixP) tc_coff_fix2rtype(fixP)
#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

#ifdef OBJ_ELF

/* This expression evaluates to false if the relocation is for a local object
   for which we still want to do the relocation at runtime.  True if we
   are willing to perform this relocation while building the .o file.  If
   the reloc is against an externally visible symbol, then the assembler
   should never do the relocation.  */

#define TC_RELOC_RTSYM_LOC_FIXUP(FIX)			\
	((FIX)->fx_addsy == NULL			\
	 || (! S_IS_EXTERNAL ((FIX)->fx_addsy)		\
	     && ! S_IS_WEAK ((FIX)->fx_addsy)		\
	     && S_IS_DEFINED ((FIX)->fx_addsy)		\
	     && ! S_IS_COMMON ((FIX)->fx_addsy)))

/* This arranges for gas/write.c to not apply a relocation if
   tc_fix_adjustable() says it is not adjustable.  */
#define TC_DONT_FIX_NON_ADJUSTABLE 1

#define tc_fix_adjustable(X) tc_m68k_fix_adjustable(X)
extern int tc_m68k_fix_adjustable PARAMS ((struct fix *));
#define elf_tc_final_processing m68k_elf_final_processing
extern void m68k_elf_final_processing PARAMS ((void));
#endif

#define TC_FORCE_RELOCATION(FIX)			\
	((FIX)->fx_r_type == BFD_RELOC_VTABLE_INHERIT	\
	 || (FIX)->fx_r_type == BFD_RELOC_VTABLE_ENTRY)

#else /* ! BFD_ASSEMBLER */

#define tc_frob_coff_symbol(sym) m68k_frob_symbol (sym)

#define NO_RELOC 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

/* Copied from write.c */
/* This was formerly called M68K_AIM_KLUDGE.  */
#define md_prepare_relax_scan(fragP, address, aim, this_state, this_type) \
  if (aim==0 && this_state== 4) { /* hard encoded from tc-m68k.c */ \
    aim=this_type->rlx_forward+1; /* Force relaxation into word mode */ \
  }

/* end of tc-m68k.h */
Commit	Line	Data
252b5132	1	/* This file is tc-m68k.h
abd63a32	2	Copyright (C) 1987, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000
252b5132 RH	3	Free Software Foundation, Inc.
	4
	5	This file is part of GAS, the GNU Assembler.
	6
	7	GAS is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 2, or (at your option)
	10	any later version.
	11
	12	GAS is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with GAS; see the file COPYING. If not, write to the Free
	19	Software Foundation, 59 Temple Place - Suite 330, Boston, MA
	20	02111-1307, USA. */
	21
	22	#define TC_M68K 1
	23
	24	#ifdef ANSI_PROTOTYPES
252b5132 RH	25	struct fix;
	26	#endif
	27
	28	#define TARGET_BYTES_BIG_ENDIAN 1
	29
	30	#ifdef OBJ_AOUT
	31	#ifdef TE_SUN3
	32	#define TARGET_FORMAT "a.out-sunos-big"
	33	#endif
	34	#ifdef TE_NetBSD
	35	#define TARGET_FORMAT "a.out-m68k-netbsd"
	36	#endif
	37	#ifdef TE_LINUX
	38	#define TARGET_FORMAT "a.out-m68k-linux"
	39	#endif
	40	#ifndef TARGET_FORMAT
	41	#define TARGET_FORMAT "a.out-zero-big"
	42	#endif
	43	#endif
	44
	45	#ifdef OBJ_ELF
	46	#define TARGET_FORMAT "elf32-m68k"
	47	#endif
	48
	49	#ifdef TE_APOLLO
	50	#define COFF_MAGIC APOLLOM68KMAGIC
	51	#define COFF_AOUTHDR_MAGIC APOLLO_COFF_VERSION_NUMBER
	52	#undef OBJ_COFF_OMIT_OPTIONAL_HEADER
	53	#endif
	54
	55	#ifdef TE_LYNX
	56	#define TARGET_FORMAT "coff-m68k-lynx"
	57	#endif
	58	#ifdef TE_AUX
	59	#define TARGET_FORMAT "coff-m68k-aux"
	60	#endif
	61	#ifdef TE_DELTA
	62	#define TARGET_FORMAT "coff-m68k-sysv"
	63	#endif
	64
	65	#ifndef COFF_MAGIC
	66	#define COFF_MAGIC MC68MAGIC
	67	#endif
	68	#define BFD_ARCH bfd_arch_m68k /* for non-BFD_ASSEMBLER */
	69	#define TARGET_ARCH bfd_arch_m68k /* BFD_ASSEMBLER */
	70	#define COFF_FLAGS F_AR32W
	71	#define TC_COUNT_RELOC(x) ((x)->fx_addsy\|\|(x)->fx_subsy)
	72
	73	#define TC_COFF_FIX2RTYPE(fixP) tc_coff_fix2rtype(fixP)
	74	#define TC_COFF_SIZEMACHDEP(frag) tc_coff_sizemachdep(frag)
	75	extern int tc_coff_sizemachdep PARAMS ((struct frag *));
	76	#ifdef TE_SUN3
	77	/* This variable contains the value to write out at the beginning of
	78	the a.out file. The 2<<16 means that this is a 68020 file instead
	79	of an old-style 68000 file */
	80
	81	#define DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE (2<<16\|OMAGIC); /* Magic byte for file header */
	82	#endif /* TE_SUN3 */
	83
	84	#ifndef AOUT_MACHTYPE
	85	#define AOUT_MACHTYPE m68k_aout_machtype
	86	extern int m68k_aout_machtype;
	87	#endif
	88
89	#define tc_comment_chars m68k_comment_chars
90	extern const char *m68k_comment_chars;
91
92	#define tc_crawl_symbol_chain(a) {;} /* not used */
93	#define tc_headers_hook(a) {;} /* not used */
94	#define tc_aout_pre_write_hook(x) {;} /* not used */
95
96	#define LISTING_WORD_SIZE 2 /* A word is 2 bytes */
97	#define LISTING_LHS_WIDTH 2 /* One word on the first line */
98	#define LISTING_LHS_WIDTH_SECOND 2 /* One word on the second line */
99	#define LISTING_LHS_CONT_LINES 4/* And 4 lines max */
100	#define LISTING_HEADER "68K GAS "
101
102	#ifndef REGISTER_PREFIX
103	#define REGISTER_PREFIX '%'
104	#endif
105
106	#if !defined (REGISTER_PREFIX_OPTIONAL)
107	#if defined (M68KCOFF) \|\| defined (OBJ_ELF)
108	#ifndef BFD_ASSEMBLER
109	#define LOCAL_LABEL(name) (name[0] == '.' \
110	&& (name[1] == 'L' \|\| name[1] == '.'))
111	#endif /* ! BFD_ASSEMBLER */
112	#define REGISTER_PREFIX_OPTIONAL 0
113	#else /* ! (COFF \|\| ELF) */
114	#define REGISTER_PREFIX_OPTIONAL 1
115	#endif /* ! (COFF \|\| ELF) */
116	#endif /* not def REGISTER_PREFIX and not def OPTIONAL_REGISTER_PREFIX */
117
118	#ifdef TE_DELTA
119	/* On the Delta, `%' can occur within a label name, but not as the
120	initial character. */
121	#define LEX_PCT LEX_NAME
122	/* On the Delta, `~' can start a label name, but is converted to '.'. */
123	#define LEX_TILDE LEX_BEGIN_NAME
124	#define tc_canonicalize_symbol_name(s) (((s) == '~' ? (s) = '.' : '.'), s)
125	/* On the Delta, dots are not required before pseudo-ops. */
abd63a32	126	#define NO_PSEUDO_DOT 1
252b5132 RH	127	#ifndef BFD_ASSEMBLER
	128	#undef LOCAL_LABEL
	129	#define LOCAL_LABEL(name) \
	130	(name[0] == '.' \|\| (name[0] == 'L' && name[1] == '%'))
	131	#endif
	132	#endif
	133
	134	extern void m68k_mri_mode_change PARAMS ((int));
	135	#define MRI_MODE_CHANGE(i) m68k_mri_mode_change (i)
	136
	137	extern int m68k_conditional_pseudoop PARAMS ((pseudo_typeS *));
	138	#define tc_conditional_pseudoop(pop) m68k_conditional_pseudoop (pop)
	139
49309057	140	extern void m68k_frob_label PARAMS ((symbolS *));
252b5132 RH	141	#define tc_frob_label(sym) m68k_frob_label (sym)
	142
	143	extern void m68k_flush_pending_output PARAMS ((void));
	144	#define md_flush_pending_output() m68k_flush_pending_output ()
	145
49309057	146	extern void m68k_frob_symbol PARAMS ((symbolS *));
252b5132 RH	147
	148	#ifdef BFD_ASSEMBLER
	149
	150	#define tc_frob_symbol(sym,punt) \
	151	do \
	152	{ \
	153	if (S_GET_SEGMENT (sym) == reg_section) \
	154	punt = 1; \
	155	m68k_frob_symbol (sym); \
	156	} \
	157	while (0)
	158
	159	#define NO_RELOC BFD_RELOC_NONE
	160
	161	#ifdef OBJ_ELF
	162
	163	/* This expression evaluates to false if the relocation is for a local object
	164	for which we still want to do the relocation at runtime. True if we
	165	are willing to perform this relocation while building the .o file. If
	166	the reloc is against an externally visible symbol, then the assembler
	167	should never do the relocation. */
	168
	169	#define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \
	170	((FIX)->fx_addsy == NULL \
	171	\|\| (! S_IS_EXTERNAL ((FIX)->fx_addsy) \
	172	&& ! S_IS_WEAK ((FIX)->fx_addsy) \
	173	&& S_IS_DEFINED ((FIX)->fx_addsy) \
	174	&& ! S_IS_COMMON ((FIX)->fx_addsy)))
	175
02198638 AO	176	/* This arranges for gas/write.c to not apply a relocation if
	177	tc_fix_adjustable() says it is not adjustable. */
	178	#define TC_DONT_FIX_NON_ADJUSTABLE 1
	179
252b5132 RH	180	#define tc_fix_adjustable(X) tc_m68k_fix_adjustable(X)
252b5132 RH	181	extern int tc_m68k_fix_adjustable PARAMS ((struct fix *));
0d96863f CM	182	#define elf_tc_final_processing m68k_elf_final_processing
0d96863f CM	183	extern void m68k_elf_final_processing PARAMS ((void));
252b5132 RH	184	#endif
	185
	186	#define TC_FORCE_RELOCATION(FIX) \
	187	((FIX)->fx_r_type == BFD_RELOC_VTABLE_INHERIT \
	188	\|\| (FIX)->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
	189
	190	#else /* ! BFD_ASSEMBLER */
	191
	192	#define tc_frob_coff_symbol(sym) m68k_frob_symbol (sym)
	193
	194	#define NO_RELOC 0
	195
	196	#endif /* ! BFD_ASSEMBLER */
	197
	198	#define DIFF_EXPR_OK
	199
	200	extern void m68k_init_after_args PARAMS ((void));
	201	#define tc_init_after_args m68k_init_after_args
	202
	203	extern int m68k_parse_long_option PARAMS ((char *));
	204	#define md_parse_long_option m68k_parse_long_option
	205
	206	#define md_operand(x)
	207
	208	#define TARGET_WORD_SIZE 32
	209	#define TARGET_ARCH bfd_arch_m68k
	210
	211	extern struct relax_type md_relax_table[];
	212	#define TC_GENERIC_RELAX_TABLE md_relax_table
	213
	214	/* Copied from write.c */
	215	/* This was formerly called M68K_AIM_KLUDGE. */
	216	#define md_prepare_relax_scan(fragP, address, aim, this_state, this_type) \
	217	if (aim==0 && this_state== 4) { /* hard encoded from tc-m68k.c */ \
	218	aim=this_type->rlx_forward+1; /* Force relaxation into word mode */ \
	219	}
	220
	221	/* end of tc-m68k.h */