X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gas%2Fconfig%2Ftc-m68k.h;h=30ca2cb35e0b00048c52bda0dc04ae0cdef5cc3a;hb=73b090a922a5f43931f0ec10b1b1b9507c819ebf;hp=0a7aa504e69d9ebaff1f3a9ba7025c28bed66e25;hpb=a39116f1c91d3642c068d9df871338cca9006be2;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/config/tc-m68k.h b/gas/config/tc-m68k.h index 0a7aa504e6..30ca2cb35e 100644 --- a/gas/config/tc-m68k.h +++ b/gas/config/tc-m68k.h @@ -1,43 +1,194 @@ -/* - * This file is tp-generic.h and is intended to be a template for - * target processor specific header files. - */ +/* This file is tc-m68k.h + Copyright (C) 1987-2016 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 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, 51 Franklin Street - Fifth Floor, Boston, MA + 02110-1301, USA. */ #define TC_M68K 1 +struct fix; + +#define TARGET_BYTES_BIG_ENDIAN 1 + +#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 REVERSE_SORT_RELOCS /* FIXME-NOW: this line can be removed. */ -#define LOCAL_LABELS_FB - -#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 (const char *regname); + +#define tc_cfi_frame_initial_instructions tc_m68k_frame_initial_instructions +extern void tc_m68k_frame_initial_instructions (void); + +#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 -/* - * Local Variables: - * comment-column: 0 - * fill-column: 131 - * End: - */ +/* However, follow compiler's guidance when it specifies encoding for LSDA. */ +# define CFI_DIFF_LSDA_OK 1 +#endif -/* end of tc-m68k.h */ +struct broken_word; +#define TC_CHECK_ADJUSTED_BROKEN_DOT_WORD(new_offset, brokw) \ + tc_m68k_check_adjusted_broken_word ((offsetT) (new_offset), (brokw)) +extern void tc_m68k_check_adjusted_broken_word (offsetT, + struct broken_word *);