194 lines
5.8 KiB
C
194 lines
5.8 KiB
C
/* This file is tc-m68k.h
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Copyright (C) 1987-2014 Free Software Foundation, Inc.
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to the Free
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Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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#define TC_M68K 1
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struct fix;
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#define TARGET_BYTES_BIG_ENDIAN 1
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#ifdef OBJ_AOUT
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#ifdef TE_SUN3
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#define TARGET_FORMAT "a.out-sunos-big"
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#endif
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#ifdef TE_NetBSD
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#define TARGET_FORMAT "a.out-m68k-netbsd"
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#endif
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#ifdef TE_LINUX
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#define TARGET_FORMAT "a.out-m68k-linux"
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#endif
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#ifndef TARGET_FORMAT
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#define TARGET_FORMAT "a.out-zero-big"
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#endif
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#endif
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#ifdef OBJ_ELF
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#define TARGET_FORMAT "elf32-m68k"
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#endif
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#ifdef TE_APOLLO
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#define COFF_MAGIC APOLLOM68KMAGIC
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#define COFF_AOUTHDR_MAGIC APOLLO_COFF_VERSION_NUMBER
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#undef OBJ_COFF_OMIT_OPTIONAL_HEADER
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#endif
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#ifdef TE_AUX
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#define TARGET_FORMAT "coff-m68k-aux"
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#endif
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#ifdef TE_DELTA
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#define TARGET_FORMAT "coff-m68k-sysv"
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#endif
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#ifndef COFF_MAGIC
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#define COFF_MAGIC MC68MAGIC
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#endif
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#define TARGET_ARCH bfd_arch_m68k
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#define tc_comment_chars m68k_comment_chars
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extern const char *m68k_comment_chars;
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#define LISTING_WORD_SIZE 2 /* A word is 2 bytes */
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#define LISTING_LHS_WIDTH 2 /* One word on the first line */
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#define LISTING_LHS_WIDTH_SECOND 2 /* One word on the second line */
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#define LISTING_LHS_CONT_LINES 4/* And 4 lines max */
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#define LISTING_HEADER "68K GAS "
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#ifndef REGISTER_PREFIX
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#define REGISTER_PREFIX '%'
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#endif
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#if !defined (REGISTER_PREFIX_OPTIONAL)
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#if defined (M68KCOFF) || defined (OBJ_ELF)
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#define REGISTER_PREFIX_OPTIONAL 0
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#else /* ! (COFF || ELF) */
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#define REGISTER_PREFIX_OPTIONAL 1
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#endif /* ! (COFF || ELF) */
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#endif /* not def REGISTER_PREFIX and not def OPTIONAL_REGISTER_PREFIX */
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#ifdef TE_DELTA
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/* On the Delta, `%' can occur within a label name, but not as the
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initial character. */
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#define LEX_PCT LEX_NAME
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/* On the Delta, `~' can start a label name, but is converted to '.'. */
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#define LEX_TILDE LEX_BEGIN_NAME
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#define tc_canonicalize_symbol_name(s) ((*(s) == '~' ? *(s) = '.' : '.'), s)
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/* On the Delta, dots are not required before pseudo-ops. */
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#define NO_PSEUDO_DOT 1
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#endif
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extern void m68k_mri_mode_change (int);
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#define MRI_MODE_CHANGE(i) m68k_mri_mode_change (i)
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extern int m68k_conditional_pseudoop (pseudo_typeS *);
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#define tc_conditional_pseudoop(pop) m68k_conditional_pseudoop (pop)
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extern void m68k_frob_label (symbolS *);
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#define tc_frob_label(sym) m68k_frob_label (sym)
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extern void m68k_flush_pending_output (void);
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#define md_flush_pending_output() m68k_flush_pending_output ()
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extern void m68k_frob_symbol (symbolS *);
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#define tc_frob_symbol(sym,punt) \
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do \
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{ \
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if (S_GET_SEGMENT (sym) == reg_section) \
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punt = 1; \
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m68k_frob_symbol (sym); \
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} \
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while (0)
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#define NO_RELOC BFD_RELOC_NONE
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#define RELAX_RELOC_ABS8 BFD_RELOC_8
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#define RELAX_RELOC_ABS16 BFD_RELOC_16
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#define RELAX_RELOC_ABS32 BFD_RELOC_32
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#define RELAX_RELOC_PC8 BFD_RELOC_8_PCREL
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#define RELAX_RELOC_PC16 BFD_RELOC_16_PCREL
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#define RELAX_RELOC_PC32 BFD_RELOC_32_PCREL
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#ifdef OBJ_ELF
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#define tc_fix_adjustable(X) tc_m68k_fix_adjustable(X)
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extern int tc_m68k_fix_adjustable (struct fix *);
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/* Target *-*-elf implies an embedded target. No shared libs.
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*-*-uclinux also requires special casing to prevent GAS from
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generating unsupported R_68K_PC16 relocs. */
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#define EXTERN_FORCE_RELOC \
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((strcmp (TARGET_OS, "elf") != 0) && (strcmp (TARGET_OS, "uclinux") != 0))
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/* Values passed to md_apply_fix don't include symbol values. */
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#define MD_APPLY_SYM_VALUE(FIX) 0
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#define elf_tc_final_processing m68k_elf_final_processing
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extern void m68k_elf_final_processing (void);
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#endif
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#define DIFF_EXPR_OK
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extern int m68k_parse_long_option (char *);
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#define md_parse_long_option m68k_parse_long_option
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#define md_operand(x)
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#define TARGET_ARCH bfd_arch_m68k
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extern struct relax_type md_relax_table[];
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#define TC_GENERIC_RELAX_TABLE md_relax_table
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/* We can't do a byte jump to the next instruction, so in that case
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force word mode by faking AIM. */
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#define md_prepare_relax_scan(fragP, address, aim, this_state, this_type) \
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do \
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{ \
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if (aim == 0 && this_type->rlx_forward == 127) \
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aim = 128; \
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} \
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while (0)
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#define DWARF2_LINE_MIN_INSN_LENGTH 2
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/* We want .cfi_* pseudo-ops for generating unwind info. */
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#define TARGET_USE_CFIPOP 1
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#define DWARF2_DEFAULT_RETURN_COLUMN 24
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#define DWARF2_CIE_DATA_ALIGNMENT (-4)
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#define tc_regname_to_dw2regnum tc_m68k_regname_to_dw2regnum
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extern int tc_m68k_regname_to_dw2regnum (char *regname);
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#define tc_cfi_frame_initial_instructions tc_m68k_frame_initial_instructions
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extern void tc_m68k_frame_initial_instructions (void);
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#ifdef TE_UCLINUX
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/* elf2flt does not honor PT_LOAD's from the executable.
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.text and .eh_frame sections will not end up in the same segment and so
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we cannot use PC-relative encoding for CFI. */
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# define CFI_DIFF_EXPR_OK 0
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/* However, follow compiler's guidance when it specifies encoding for LSDA. */
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# define CFI_DIFF_LSDA_OK 1
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#endif
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struct broken_word;
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#define TC_CHECK_ADJUSTED_BROKEN_DOT_WORD(new_offset, brokw) \
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tc_m68k_check_adjusted_broken_word ((offsetT) (new_offset), (brokw))
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extern void tc_m68k_check_adjusted_broken_word (offsetT,
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struct broken_word *);
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