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Diffstat (limited to 'gas/config/tc-m68k.h')
| -rw-r--r-- | gas/config/tc-m68k.h | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/gas/config/tc-m68k.h b/gas/config/tc-m68k.h new file mode 100644 index 00000000000..bc8308abca4 --- /dev/null +++ b/gas/config/tc-m68k.h @@ -0,0 +1,216 @@ +/* This file is tc-m68k.h + Copyright (C) 1987, 89, 90, 91, 92, 93, 94, 95, 96, 97, 1998 + 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 symbol; +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 +#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 ((struct symbol *)); +#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 ((struct symbol *)); + +#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))) + +#define tc_fix_adjustable(X) tc_m68k_fix_adjustable(X) +extern int tc_m68k_fix_adjustable PARAMS ((struct fix *)); +#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 */ |