198 lines
5.8 KiB
C
198 lines
5.8 KiB
C
/* This file is tc-m68k.h
|
|
|
|
Copyright (C) 1987, 89, 90, 91, 92, 93, 94, 95, 96, 1997
|
|
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
|
|
|
|
#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
|
|
|
|
#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)
|
|
#define LOCAL_LABEL(name) (name[0] == '.' \
|
|
&& (name[1] == 'L' || name[1] == '.'))
|
|
#define FAKE_LABEL_NAME ".L0\001"
|
|
#define REGISTER_PREFIX_OPTIONAL 0
|
|
#else
|
|
#define REGISTER_PREFIX_OPTIONAL 1
|
|
#endif
|
|
#endif /* not def REGISTER_PREFIX and not def OPTIONAL_REGISTER_PREFIX */
|
|
|
|
#ifdef TE_DELTA
|
|
/* On the Delta, `%' can occur within a label name. I'm assuming it
|
|
can't be used as the initial character. If that's not true, more
|
|
work will be needed to fix this up. */
|
|
#define LEX_PCT 1
|
|
/* On the Delta, dots are not required before pseudo-ops. */
|
|
#define NO_PSEUDO_DOT
|
|
#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)
|
|
|
|
#ifdef BFD_ASSEMBLER
|
|
|
|
#define tc_frob_symbol(sym,punt) \
|
|
do \
|
|
{ \
|
|
if (S_GET_SEGMENT (sym) == reg_section) \
|
|
punt = 1; \
|
|
if (S_GET_SEGMENT (sym) == text_section \
|
|
&& (S_GET_VALUE (sym) & 1) != 0) \
|
|
as_warn ("text label `%s' aligned to odd boundary", \
|
|
S_GET_NAME (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. */
|
|
|
|
#define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \
|
|
((FIX)->fx_r_type != BFD_RELOC_8_PLT_PCREL \
|
|
&& (FIX)->fx_r_type != BFD_RELOC_16_PLT_PCREL \
|
|
&& (FIX)->fx_r_type != BFD_RELOC_32_PLT_PCREL \
|
|
&& (FIX)->fx_r_type != BFD_RELOC_8_GOT_PCREL \
|
|
&& (FIX)->fx_r_type != BFD_RELOC_16_GOT_PCREL \
|
|
&& (FIX)->fx_r_type != BFD_RELOC_32_GOT_PCREL)
|
|
|
|
#define tc_fix_adjustable(X) tc_m68k_fix_adjustable(X)
|
|
#endif
|
|
|
|
#else /* ! BFD_ASSEMBLER */
|
|
|
|
#define tc_frob_coff_symbol(sym) \
|
|
do \
|
|
{ \
|
|
if (S_GET_SEGMENT (sym) == text_section \
|
|
&& (S_GET_VALUE (sym) & 1) != 0) \
|
|
as_warn ("text label `%s' aligned to odd boundary", \
|
|
S_GET_NAME (sym)); \
|
|
} \
|
|
while (0)
|
|
|
|
#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 */
|