/* This file is tc-m68k.h
-
- Copyright (C) 1987, 89, 90, 91, 92, 93, 94, 95, 1996
+ Copyright 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ 1998, 1999, 2000
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
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. */
+ 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"
-#else
+#endif
#ifdef TE_NetBSD
#define TARGET_FORMAT "a.out-m68k-netbsd"
-#else
-#define TARGET_FORMAT "a.out-zero-big"
#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 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
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_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)
+#ifndef BFD_ASSEMBLER
#define LOCAL_LABEL(name) (name[0] == '.' \
&& (name[1] == 'L' || name[1] == '.'))
-#define FAKE_LABEL_NAME ".L0\001"
+#endif /* ! BFD_ASSEMBLER */
#define REGISTER_PREFIX_OPTIONAL 0
-#else
+#else /* ! (COFF || ELF) */
#define REGISTER_PREFIX_OPTIONAL 1
-#endif
+#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. 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, `%' 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
+#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) \
- if (S_GET_SEGMENT (sym) == reg_section) punt = 1
+#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
/* 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. */
+ 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_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)
+ ((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 *));
+
+#ifdef OBJ_ELF
+/* This arranges for gas/write.c to not apply a relocation if
+ tc_fix_adjustable() says it is not adjustable. */
+#define TC_FIX_ADJUSTABLE(fixP) tc_fix_adjustable (fixP)
#endif
-#else
-#define NO_RELOC 0
+#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
+#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));
extern struct relax_type md_relax_table[];
#define TC_GENERIC_RELAX_TABLE md_relax_table
-/* end of tc-m68k.h */
+/* 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 */ \
+ }
+
+#define DWARF2_LINE_MIN_INSN_LENGTH 2
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