/* 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, 2006, 2007
+ Free Software Foundation, Inc.
- Copyright (C) 1987-1992 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)
+ the Free Software Foundation; either version 3, 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
-/*
- * This file is tp-generic.h and is intended to be a template for
- * target processor specific header files.
- */
+ 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, 51 Franklin Street - Fifth Floor, Boston, MA
+ 02110-1301, USA. */
#define TC_M68K 1
+struct fix;
-#define COFF_MAGIC MC68MAGIC
-#define BFD_ARCH bfd_arch_m68k
-#define COFF_FLAGS F_AR32W
-#define TC_COUNT_RELOC(x) ((x)->fx_addsy||(x)->fx_subsy||(x)->fx_offset)
+#define TARGET_BYTES_BIG_ENDIAN 1
-#define TC_COFF_FIX2RTYPE(fixP) tc_coff_fix2rtype(fixP)
-#define TC_COFF_SIZEMACHDEP(frag) tc_coff_sizemachdep(frag)
+#ifdef OBJ_AOUT
#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 */
-
-#define AOUT_MACHTYPE 0x2
-
-#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 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_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 TARGET_ARCH bfd_arch_m68k
+
+#define tc_comment_chars m68k_comment_chars
+extern const char *m68k_comment_chars;
+
+#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 "
-/* Copied from write.c */
-#define M68K_AIM_KLUDGE(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 */ \
- }
+#ifndef REGISTER_PREFIX
+#define REGISTER_PREFIX '%'
+#endif
+
+#if !defined (REGISTER_PREFIX_OPTIONAL)
+#if defined (M68KCOFF) || defined (OBJ_ELF)
+#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
+#endif
+
+extern void m68k_mri_mode_change (int);
+#define MRI_MODE_CHANGE(i) m68k_mri_mode_change (i)
+
+extern int m68k_conditional_pseudoop (pseudo_typeS *);
+#define tc_conditional_pseudoop(pop) m68k_conditional_pseudoop (pop)
+
+extern void m68k_frob_label (symbolS *);
+#define tc_frob_label(sym) m68k_frob_label (sym)
+
+extern void m68k_flush_pending_output (void);
+#define md_flush_pending_output() m68k_flush_pending_output ()
+
+extern void m68k_frob_symbol (symbolS *);
+
+#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 (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_fix 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 (void);
+#endif
+
+#define DIFF_EXPR_OK
+
+extern int m68k_parse_long_option (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 (char *regname);
+
+#define tc_cfi_frame_initial_instructions tc_m68k_frame_initial_instructions
+extern void tc_m68k_frame_initial_instructions (void);
-/*
- * Local Variables:
- * comment-column: 0
- * fill-column: 131
- * End:
- */
+#ifdef TE_UCLINUX
+/* elf2flt does not honor PT_LOAD's from the executable.
+ .text and .eh_frame sections will not end up in the same segment and so
+ we cannot use PC-relative encoding for CFI. */
+# define CFI_DIFF_EXPR_OK 0
-/* end of tc-m68k.h */
+/* However, follow compiler's guidance when it specifies encoding for LSDA. */
+# define CFI_DIFF_LSDA_OK 1
+#endif
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