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Diffstat (limited to 'contrib/binutils/gas/config/tc-sh.h')
| -rw-r--r-- | contrib/binutils/gas/config/tc-sh.h | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/contrib/binutils/gas/config/tc-sh.h b/contrib/binutils/gas/config/tc-sh.h new file mode 100644 index 0000000..ffe948a --- /dev/null +++ b/contrib/binutils/gas/config/tc-sh.h @@ -0,0 +1,232 @@ +/* This file is tc-sh.h + Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 + 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) + 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_SH + +#define TARGET_ARCH bfd_arch_sh + +#if ANSI_PROTOTYPES +struct segment_info_struct; +struct internal_reloc; +#endif + +/* Whether -relax was used. */ +extern int sh_relax; + +/* Whether -small was used. */ +extern int sh_small; + +/* Don't try to break words. */ +#define WORKING_DOT_WORD + +/* All SH instructions are multiples of 16 bits. */ +#define DWARF2_LINE_MIN_INSN_LENGTH 2 + +/* We require .long, et. al., to be aligned correctly. */ +#define md_cons_align(nbytes) sh_cons_align (nbytes) +extern void sh_cons_align PARAMS ((int)); + +/* When relaxing, we need to generate relocations for alignment + directives. */ +#define HANDLE_ALIGN(frag) sh_handle_align (frag) +extern void sh_handle_align PARAMS ((fragS *)); + +#define MAX_MEM_FOR_RS_ALIGN_CODE (1 + 2) + +/* We need to force out some relocations when relaxing. */ +#define TC_FORCE_RELOCATION(fix) sh_force_relocation (fix) + +/* The type fixS is defined (to struct fix) in write.h, but write.h uses + definitions from this file. To avoid problems with including write.h + after the "right" definitions, don't; just forward-declare struct fix + here. */ +struct fix; +extern int sh_force_relocation PARAMS ((struct fix *)); + +#ifdef OBJ_ELF +#define obj_fix_adjustable(fixP) sh_fix_adjustable(fixP) +struct fix; +extern boolean sh_fix_adjustable PARAMS ((struct fix *)); + +/* This arranges for gas/write.c to not apply a relocation if + obj_fix_adjustable() says it is not adjustable. */ +/* ??? fixups with symbols in SEC_MERGE sections are marked with + obj_fix_adjustable and have a non-section symbol, as in + "vwxyz"+1 in execute/string-opt-6.c . Maybe the test of + (symbol_used_in_reloc_p should be done in the machine-independent code. */ +#define TC_FIX_ADJUSTABLE(fixP) \ + (! symbol_used_in_reloc_p (fixP->fx_addsy) && obj_fix_adjustable (fixP)) +#endif + +#define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC) +extern long md_pcrel_from_section PARAMS ((struct fix *, segT)); + +#define IGNORE_NONSTANDARD_ESCAPES + +#define LISTING_HEADER \ + (!target_big_endian \ + ? "Hitachi Super-H GAS Little Endian" : "Hitachi Super-H GAS Big Endian") + +#define md_operand(x) + +extern const struct relax_type md_relax_table[]; +#define TC_GENERIC_RELAX_TABLE md_relax_table + +/* We record, for each section, whether we have most recently output a + CODE reloc or a DATA reloc. */ +struct sh_segment_info_type +{ + int in_code : 1; +}; +#define TC_SEGMENT_INFO_TYPE struct sh_segment_info_type + +/* We call a routine to emit a reloc for a label, so that the linker + can align loads and stores without crossing a label. */ +extern void sh_frob_label PARAMS ((void)); +#define tc_frob_label(sym) sh_frob_label () + +/* We call a routine to flush pending output in order to output a DATA + reloc when required. */ +extern void sh_flush_pending_output PARAMS ((void)); +#define md_flush_pending_output() sh_flush_pending_output () + +#ifdef BFD_ASSEMBLER +#define tc_frob_file_before_adjust sh_frob_file +#else +#define tc_frob_file sh_frob_file +#endif +extern void sh_frob_file PARAMS ((void)); + +#ifdef OBJ_COFF +/* COFF specific definitions. */ + +#define DO_NOT_STRIP 0 + +/* This macro translates between an internal fix and an coff reloc type */ +#define TC_COFF_FIX2RTYPE(fix) ((fix)->fx_r_type) + +#define BFD_ARCH TARGET_ARCH + +#define COFF_MAGIC (!target_big_endian ? SH_ARCH_MAGIC_LITTLE : SH_ARCH_MAGIC_BIG) + +/* We need to write out relocs which have not been completed. */ +#define TC_COUNT_RELOC(fix) ((fix)->fx_addsy != NULL) + +#define TC_RELOC_MANGLE(seg, fix, int, paddr) \ + sh_coff_reloc_mangle ((seg), (fix), (int), (paddr)) +extern void sh_coff_reloc_mangle + PARAMS ((struct segment_info_struct *, struct fix *, + struct internal_reloc *, unsigned int)); + +#define tc_coff_symbol_emit_hook(a) ; /* not used */ + +#define NEED_FX_R_TYPE 1 + +#define TC_KEEP_FX_OFFSET 1 + +#define TC_COFF_SIZEMACHDEP(frag) tc_coff_sizemachdep(frag) +extern int tc_coff_sizemachdep PARAMS ((fragS *)); + +#ifdef BFD_ASSEMBLER +#define SEG_NAME(SEG) segment_name (SEG) +#else +#define SEG_NAME(SEG) obj_segment_name (SEG) +#endif + +/* We align most sections to a 16 byte boundary. */ +#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) \ + (strncmp (SEG_NAME (SEG), ".stabstr", 8) == 0 \ + ? 0 \ + : ((strncmp (SEG_NAME (SEG), ".stab", 5) == 0 \ + || strcmp (SEG_NAME (SEG), ".ctors") == 0 \ + || strcmp (SEG_NAME (SEG), ".dtors") == 0) \ + ? 2 \ + : (sh_small ? 2 : 4))) + +#endif /* OBJ_COFF */ + +#ifdef OBJ_ELF +/* ELF specific definitions. */ + +/* Whether or not the target is big endian */ +extern int target_big_endian; +#ifdef TE_LINUX +#define TARGET_FORMAT (!target_big_endian ? "elf32-sh-linux" : "elf32-shbig-linux") +#elif defined(TE_NetBSD) +#define TARGET_FORMAT (!target_big_endian ? "elf32-shl-nbsd" : "elf32-sh-nbsd") +#else +#define TARGET_FORMAT (!target_big_endian ? "elf32-shl" : "elf32-sh") +#endif + +#define elf_tc_final_processing sh_elf_final_processing +extern void sh_elf_final_processing PARAMS ((void)); + +#define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */ + +#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_" + +/* This is the relocation type for direct references to + GLOBAL_OFFSET_TABLE. It comes up in complicated expressions such + as _GLOBAL_OFFSET_TABLE_+[.-.L284], which cannot be expressed + normally with the regular expressions. The fixup specified here + when used at runtime implies that we should add the address of the + GOT to the specified location, and as a result we have simplified + the expression into something we can use. */ +#define TC_RELOC_GLOBAL_OFFSET_TABLE BFD_RELOC_SH_GOTPC + +/* 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. + + We can't resolve references to the GOT or the PLT when creating the + object file, since these tables are only created by the linker. + Also, if the symbol is global, weak, common or not defined, the + assembler can't compute the appropriate reloc, since its location + can only be determined at link time. */ + +#define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \ + ((FIX)->fx_r_type != BFD_RELOC_32_PLT_PCREL \ + && (FIX)->fx_r_type != BFD_RELOC_32_GOT_PCREL \ + && (FIX)->fx_r_type != BFD_RELOC_SH_GOTPC \ + && ((FIX)->fx_addsy == NULL \ + || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \ + && ! S_IS_WEAK ((FIX)->fx_addsy) \ + && S_IS_DEFINED ((FIX)->fx_addsy) \ + && ! S_IS_COMMON ((FIX)->fx_addsy)))) + +#define md_parse_name(name, exprP, nextcharP) \ + sh_parse_name ((name), (exprP), (nextcharP)) +int sh_parse_name PARAMS ((char const *name, + expressionS *exprP, + char *nextchar)); + +#define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP) \ + sh_cons_fix_new ((FRAG), (OFF), (LEN), (EXP)) +void sh_cons_fix_new PARAMS ((fragS *, int, int, expressionS *)); + +/* This is used to construct expressions out of @GOTOFF, @PLT and @GOT + symbols. The relocation type is stored in X_md. */ +#define O_PIC_reloc O_md1 + +#endif /* OBJ_ELF */ |
