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Diffstat (limited to 'gas/config/tc-arm.h')
| -rw-r--r-- | gas/config/tc-arm.h | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/gas/config/tc-arm.h b/gas/config/tc-arm.h new file mode 100644 index 0000000..bf99e24 --- /dev/null +++ b/gas/config/tc-arm.h @@ -0,0 +1,204 @@ +/* This file is tc-arm.h + Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. + Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org) + Modified by David Taylor (dtaylor@armltd.co.uk) + + 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) + 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, 59 Temple Place - Suite 330, Boston, MA + 02111-1307, USA. */ + +#define TC_ARM 1 + +#ifndef TARGET_BYTES_BIG_ENDIAN +#define TARGET_BYTES_BIG_ENDIAN 0 +#endif + +#define WORKING_DOT_WORD + +#define COFF_MAGIC ARMMAGIC +#define TARGET_ARCH bfd_arch_arm + +#define AOUT_MACHTYPE 0 + +#define DIFF_EXPR_OK + +#ifdef LITTLE_ENDIAN +#undef LITTLE_ENDIAN +#endif + +#ifdef BIG_ENDIAN +#undef BIG_ENDIAN +#endif + +#define LITTLE_ENDIAN 1234 +#define BIG_ENDIAN 4321 + +#if defined OBJ_AOUT +#if defined TE_RISCIX +# define TARGET_FORMAT "a.out-riscix" +#elif defined TE_LINUX +# define ARM_BI_ENDIAN +# define TARGET_FORMAT "a.out-arm-linux" +#elif defined TE_NetBSD +# define TARGET_FORMAT "a.out-arm-netbsd" +#else +# define ARM_BI_ENDIAN +# define TARGET_FORMAT \ + (target_big_endian ? "a.out-arm-big" : "a.out-arm-little") +#endif +#endif /* OBJ_AOUT */ + +#ifdef OBJ_AIF +#define TARGET_FORMAT "aif" +#endif + +#if defined OBJ_COFF || defined OBJ_ELF +# define ARM_BI_ENDIAN + +# define TC_VALIDATE_FIX(fixP, segType, Label) \ + if (arm_validate_fix (fixP)) add_symbolP = fixP->fx_addsy + extern boolean arm_validate_fix PARAMS ((struct fix *)); +#endif + +#ifdef OBJ_COFF +# if defined TE_PE +# define TC_FORCE_RELOCATION(x) ((x)->fx_r_type == BFD_RELOC_RVA) +# ifdef TE_EPOC +# define TARGET_FORMAT (target_big_endian ? "epoc-pe-arm-big" : "epoc-pe-arm-little") +# else +# define TARGET_FORMAT (target_big_endian ? "pe-arm-big" : "pe-arm-little") +# endif +# else +# define TARGET_FORMAT (target_big_endian ? "coff-arm-big" : "coff-arm-little") +# endif +#endif + +#ifdef OBJ_ELF +# define TARGET_FORMAT elf32_arm_target_format() + extern const char * elf32_arm_target_format PARAMS ((void)); + +# define TC_FORCE_RELOCATION(fixp) arm_force_relocation (fixp) + extern int arm_force_relocation PARAMS ((struct fix *)); +#endif + +#define md_convert_frag(b, s, f) {as_fatal (_("arm convert_frag\n"));} + +#define md_cleanup() arm_cleanup () + extern void arm_cleanup PARAMS ((void)); + +#define md_start_line_hook() arm_start_line_hook () + extern void arm_start_line_hook PARAMS ((void)); + +#define tc_frob_label(S) arm_frob_label (S) + extern void arm_frob_label PARAMS ((struct symbol *)); + +/* We also need to mark assembler created symbols: */ +#define tc_frob_fake_label(S) arm_frob_label (S) + +/* NOTE: The fake label creation in stabs.c:s_stab_generic() has + deliberately not been updated to mark assembler created stabs + symbols as Thumb. */ + +#ifdef OBJ_ELF +#define obj_fix_adjustable(fixP) arm_fix_adjustable (fixP) +#else +#define obj_fix_adjustable(fixP) 0 +#endif + +/* We need to keep some local information on symbols. */ + +#define TC_SYMFIELD_TYPE unsigned int +#define ARM_GET_FLAG(s) ((s)->sy_tc) +#define ARM_SET_FLAG(s,v) ((s)->sy_tc |= (v)) +#define ARM_RESET_FLAG(s,v) ((s)->sy_tc &= ~(v)) + +#define ARM_FLAG_THUMB (1 << 0) /* The symbol is a Thumb symbol rather than an Arm symbol. */ +#define ARM_FLAG_INTERWORK (1 << 1) /* The symbol is attached to code that suppports interworking. */ +#define THUMB_FLAG_FUNC (1 << 2) /* The symbol is attached to the start of a Thumb function. */ + +#define ARM_IS_THUMB(s) (ARM_GET_FLAG (s) & ARM_FLAG_THUMB) +#define ARM_IS_INTERWORK(s) (ARM_GET_FLAG (s) & ARM_FLAG_INTERWORK) +#define THUMB_IS_FUNC(s) (ARM_GET_FLAG (s) & THUMB_FLAG_FUNC) + +#define ARM_SET_THUMB(s,t) ((t) ? ARM_SET_FLAG (s, ARM_FLAG_THUMB) : ARM_RESET_FLAG (s, ARM_FLAG_THUMB)) +#define ARM_SET_INTERWORK(s,t) ((t) ? ARM_SET_FLAG (s, ARM_FLAG_INTERWORK) : ARM_RESET_FLAG (s, ARM_FLAG_INTERWORK)) +#define THUMB_SET_FUNC(s,t) ((t) ? ARM_SET_FLAG (s, THUMB_FLAG_FUNC) : ARM_RESET_FLAG (s, THUMB_FLAG_FUNC)) + + +#define TC_FIX_TYPE PTR +#define TC_INIT_FIX_DATA(FIXP) ((FIXP)->tc_fix_data = NULL) + +#define TC_START_LABEL(C,STR) \ + (c == ':' || (c == '/' && arm_data_in_code ())) +int arm_data_in_code PARAMS ((void)); + +#define tc_canonicalize_symbol_name(str) \ + arm_canonicalize_symbol_name (str); +char * arm_canonicalize_symbol_name PARAMS ((char *)); + +#define obj_adjust_symtab() arm_adjust_symtab () + extern void arm_adjust_symtab PARAMS ((void)); + +#ifdef OBJ_ELF +#define obj_frob_symbol(sym, punt) armelf_frob_symbol (sym, punt) +#endif + +#define tc_aout_pre_write_hook(x) {;} /* not used */ + +#define LISTING_HEADER "ARM GAS " + +#define OPTIONAL_REGISTER_PREFIX '%' + +#define md_operand(x) + +#define TC_HANDLES_FX_DONE + +#define MD_APPLY_FIX3 + +#define LOCAL_LABEL(name) (name[0] == '.' && (name[1] == 'L')) +#define LOCAL_LABELS_FB 1 + +/* 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. + This is only used for pcrel relocations, so GOTOFF does not need to be + checked here. I am not sure if some of the others are ever used with + pcrel, but it is easier to be safe than sorry. */ + +#define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \ + ( (FIX)->fx_r_type != BFD_RELOC_ARM_GOT12 \ + && (FIX)->fx_r_type != BFD_RELOC_ARM_GOT32 \ + && (FIX)->fx_r_type != BFD_RELOC_32) + +#define TC_CONS_FIX_NEW cons_fix_new_arm + extern void cons_fix_new_arm PARAMS ((fragS *, int, int, expressionS *)); + +/* Don't allow symbols to be discarded on GOT related relocs, + nor on globals. */ +#define tc_fix_adjustable(x) (\ + ((x)->fx_r_type == BFD_RELOC_ARM_PLT32 \ + || (x)->fx_r_type == BFD_RELOC_ARM_GOT32 \ + || (x)->fx_r_type == BFD_RELOC_ARM_GOTOFF \ + || S_IS_EXTERN ((x)->fx_addsy) \ + || S_IS_WEAK ((x)->fx_addsy)) ? 0 : 1) + +#ifdef OBJ_ELF +#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_" +#else +#define GLOBAL_OFFSET_TABLE_NAME "__GLOBAL_OFFSET_TABLE_" +#endif + +/* end of tc-arm.h */ |