X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gas%2Fconfig%2Ftc-m68k.h;h=febb292e50c5408aef572de0facd79c489f73fba;hb=3067d3b96cfb88e86acf94d2aa1575cff0e0110f;hp=56028579f5b7a67a6c62ae2ea0b412c83c5d81cb;hpb=20710f1c0ccbba776cfb966cbb41fd7b7cf6cbb1;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/config/tc-m68k.h b/gas/config/tc-m68k.h index 56028579f5..febb292e50 100644 --- a/gas/config/tc-m68k.h +++ b/gas/config/tc-m68k.h @@ -1,13 +1,11 @@ /* This file is tc-m68k.h - - Copyright (C) 1987, 89, 90, 91, 92, 93, 94, 95, 1996 - Free Software Foundation, Inc. + Copyright (C) 1987-2015 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, @@ -16,22 +14,28 @@ 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, 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 #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 @@ -45,40 +49,20 @@ #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 TARGET_ARCH bfd_arch_m68k -#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 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 */ @@ -86,81 +70,125 @@ extern int m68k_aout_machtype; #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 LOCAL_LABEL(name) (name[0] == '.' \ - && (name[1] == 'L' || name[1] == '.')) -#define FAKE_LABEL_NAME ".L0\001" #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 #endif -extern void m68k_mri_mode_change PARAMS ((int)); +extern void m68k_mri_mode_change (int); #define MRI_MODE_CHANGE(i) m68k_mri_mode_change (i) -#ifdef BFD_ASSEMBLER +extern int m68k_conditional_pseudoop (pseudo_typeS *); +#define tc_conditional_pseudoop(pop) m68k_conditional_pseudoop (pop) -#define tc_frob_symbol(sym,punt) \ - if (S_GET_SEGMENT (sym) == reg_section) punt = 1 +extern void m68k_frob_label (symbolS *); +#define tc_frob_label(sym) m68k_frob_label (sym) -#define NO_RELOC BFD_RELOC_NONE +extern void m68k_flush_pending_output (void); +#define md_flush_pending_output() m68k_flush_pending_output () -#ifdef OBJ_ELF +extern void m68k_frob_symbol (symbolS *); -/* 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. */ +#define tc_frob_symbol(sym,punt) \ +do \ + { \ + if (S_GET_SEGMENT (sym) == reg_section) \ + punt = 1; \ + m68k_frob_symbol (sym); \ + } \ +while (0) -#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) +#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) -#endif +extern int tc_m68k_fix_adjustable (struct fix *); -#else -#define NO_RELOC 0 +/* 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 void m68k_init_after_args PARAMS ((void)); -#define tc_init_after_args m68k_init_after_args - -extern int m68k_parse_long_option PARAMS ((char *)); +extern int m68k_parse_long_option (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 -/* end of tc-m68k.h */ +/* 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); + +#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 + +/* However, follow compiler's guidance when it specifies encoding for LSDA. */ +# define CFI_DIFF_LSDA_OK 1 +#endif + +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 *);