X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gas%2Fconfig%2Ftc-m68k.h;h=559d5e311ec14cc1a446fe42e5b9729aaa8103da;hb=7b347e436d891e39488be78a0e7fccb51de7b3c0;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..559d5e311e 100644 --- a/gas/config/tc-m68k.h +++ b/gas/config/tc-m68k.h @@ -1,6 +1,6 @@ /* 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, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. This file is part of GAS, the GNU Assembler. @@ -16,22 +16,30 @@ 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 @@ -51,6 +59,9 @@ #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 @@ -60,7 +71,7 @@ #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_FIX2RTYPE(FIX) tc_coff_fix2rtype(FIX) #define TC_COFF_SIZEMACHDEP(frag) tc_coff_sizemachdep(frag) extern int tc_coff_sizemachdep PARAMS ((struct frag *)); #ifdef TE_SUN3 @@ -76,6 +87,9 @@ extern int tc_coff_sizemachdep PARAMS ((struct frag *)); 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 */ @@ -86,66 +100,101 @@ 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) +#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 +#define tc_fix_adjustable(X) tc_m68k_fix_adjustable(X) +extern int tc_m68k_fix_adjustable PARAMS ((struct fix *)); -/* 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. */ +/* 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)) -#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) +/* Values passed to md_apply_fix3 don't include symbol values. */ +#define MD_APPLY_SYM_VALUE(FIX) 0 -#define tc_fix_adjustable(X) tc_m68k_fix_adjustable(X) +#define elf_tc_final_processing m68k_elf_final_processing +extern void m68k_elf_final_processing PARAMS ((void)); #endif -#else -#define NO_RELOC 0 -#endif +#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 @@ -163,4 +212,26 @@ extern int m68k_parse_long_option PARAMS ((char *)); 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 (const char *regname); + +#define tc_cfi_frame_initial_instructions tc_m68k_frame_initial_instructions +extern void tc_m68k_frame_initial_instructions (void);