197 lines
6.3 KiB
C
197 lines
6.3 KiB
C
/* tc-sparc.h - Macros and type defines for the sparc.
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Copyright (C) 1989, 90-96, 97, 98, 1999 Free Software Foundation, Inc.
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2,
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or (at your option) any later version.
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GAS is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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the GNU General Public License for more details.
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You should have received a copy of the GNU General Public
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License along with GAS; see the file COPYING. If not, write
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to the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef TC_SPARC
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#define TC_SPARC 1
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#ifdef ANSI_PROTOTYPES
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struct frag;
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#endif
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/* This is used to set the default value for `target_big_endian'. */
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#define TARGET_BYTES_BIG_ENDIAN 1
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#define LOCAL_LABELS_FB 1
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#define TARGET_ARCH bfd_arch_sparc
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extern const char *sparc_target_format PARAMS ((void));
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#define TARGET_FORMAT sparc_target_format ()
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#define RELOC_EXPANSION_POSSIBLE
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#define MAX_RELOC_EXPANSION 2
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#if 0
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#ifdef TE_SPARCAOUT
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/* Bi-endian support may eventually be unconditional, but until things are
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working well it's only provided for targets that need it. */
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#define SPARC_BIENDIAN
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#endif
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#endif
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/* Make it unconditional and check if -EL is valid after option parsing */
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#define SPARC_BIENDIAN
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#define WORKING_DOT_WORD
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#define md_convert_frag(b,s,f) {as_fatal (_("sparc convert_frag\n"));}
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#define md_estimate_size_before_relax(f,s) \
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(as_fatal(_("estimate_size_before_relax called")),1)
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#define LISTING_HEADER "SPARC GAS "
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extern int sparc_pic_code;
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#define md_do_align(n, fill, len, max, around) \
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if ((n) && (n) <= 10 && !need_pass_2 && !(fill) \
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&& subseg_text_p (now_seg)) \
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{ \
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char *p; \
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p = frag_var (rs_align_code, 1 << n, 1, (relax_substateT) 1024, \
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(symbolS *) 0, (offsetT) (n), (char *) 0); \
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*p = 0x00; \
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goto around; \
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}
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/* We require .word, et. al., to be aligned correctly. */
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#define md_cons_align(nbytes) sparc_cons_align (nbytes)
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extern void sparc_cons_align PARAMS ((int));
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#define HANDLE_ALIGN(fragp) sparc_handle_align (fragp)
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extern void sparc_handle_align PARAMS ((struct frag *));
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#if defined (OBJ_ELF) || defined (OBJ_AOUT)
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/* This expression evaluates to false if the relocation is for a local
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object for which we still want to do the relocation at runtime.
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True if we are willing to perform this relocation while building
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the .o file.
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If the reloc is against an externally visible symbol, then the
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a.out assembler should not do the relocation if generating PIC, and
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the ELF assembler should never do the relocation. */
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#ifdef OBJ_ELF
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#define obj_relocate_extern 0
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#else
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#define obj_relocate_extern (! sparc_pic_code)
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#endif
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#define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \
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(obj_relocate_extern \
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|| (FIX)->fx_addsy == NULL \
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|| (! S_IS_EXTERNAL ((FIX)->fx_addsy) \
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&& ! S_IS_WEAK ((FIX)->fx_addsy) \
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&& S_IS_DEFINED ((FIX)->fx_addsy) \
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&& ! S_IS_COMMON ((FIX)->fx_addsy)))
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#endif
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/* I know that "call 0" fails in sparc-coff if this doesn't return 1. I
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don't know about other relocation types, or other formats, yet. */
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#ifdef OBJ_COFF
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#define TC_FORCE_RELOCATION(FIXP) \
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((FIXP)->fx_r_type == BFD_RELOC_32_PCREL_S2 \
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&& ((FIXP)->fx_addsy == 0 \
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|| S_GET_SEGMENT ((FIXP)->fx_addsy) == absolute_section))
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#define RELOC_REQUIRES_SYMBOL
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#endif
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#ifdef OBJ_ELF
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#define TC_FORCE_RELOCATION(fixp) elf32_sparc_force_relocation(fixp)
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extern int elf32_sparc_force_relocation PARAMS ((struct fix *));
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#endif
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#define MD_APPLY_FIX3
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#define TC_HANDLES_FX_DONE
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#ifdef OBJ_ELF
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/* Keep relocations against global symbols. Don't turn them into
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relocations against sections. This is required for the dynamic
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linker to operate properly. When generating PIC, we need to keep
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any non PC relative reloc. */
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#define tc_fix_adjustable(FIX) \
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(! S_IS_EXTERNAL ((FIX)->fx_addsy) \
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&& ! S_IS_WEAK ((FIX)->fx_addsy) \
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&& (FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \
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&& (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \
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&& (! sparc_pic_code \
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|| ((FIX)->fx_r_type != BFD_RELOC_HI22 \
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&& (FIX)->fx_r_type != BFD_RELOC_LO10 \
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&& (FIX)->fx_r_type != BFD_RELOC_SPARC13 \
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&& ((FIX)->fx_r_type != BFD_RELOC_32_PCREL_S2 \
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|| (S_IS_DEFINED ((FIX)->fx_addsy) \
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&& ! S_IS_COMMON ((FIX)->fx_addsy) \
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&& ! S_IS_EXTERNAL ((FIX)->fx_addsy) \
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&& ! S_IS_WEAK ((FIX)->fx_addsy))) \
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&& ((FIX)->fx_pcrel \
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|| ((FIX)->fx_subsy != NULL \
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&& (S_GET_SEGMENT ((FIX)->fx_subsy) \
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== S_GET_SEGMENT ((FIX)->fx_addsy))) \
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|| S_IS_LOCAL ((FIX)->fx_addsy)))))
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/* Finish up the entire symtab. */
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#define tc_adjust_symtab() sparc_adjust_symtab ()
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extern void sparc_adjust_symtab PARAMS ((void));
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#endif
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#ifdef OBJ_AOUT
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/* When generating PIC code, we must not adjust any reloc which will
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turn into a reloc against the global offset table, nor any reloc
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which we will need if a symbol is overridden. */
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#define tc_fix_adjustable(FIX) \
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(! sparc_pic_code \
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|| ((FIX)->fx_pcrel \
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&& ((FIX)->fx_addsy == NULL \
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|| (! S_IS_EXTERNAL ((FIX)->fx_addsy) \
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&& ! S_IS_WEAK ((FIX)->fx_addsy)))) \
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|| (FIX)->fx_r_type == BFD_RELOC_16 \
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|| (FIX)->fx_r_type == BFD_RELOC_32)
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#endif
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#define elf_tc_final_processing sparc_elf_final_processing
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extern void sparc_elf_final_processing PARAMS ((void));
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#define md_operand(x)
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extern void sparc_md_end PARAMS ((void));
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#define md_end() sparc_md_end ()
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#endif
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#define TC_CONS_FIX_NEW cons_fix_new_sparc
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extern void cons_fix_new_sparc
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PARAMS ((struct frag *, int, unsigned int, struct expressionS *));
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#define TC_FIX_TYPE valueT
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#define TC_INIT_FIX_DATA(X) \
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do \
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{ \
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(X)->tc_fix_data = 0; \
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} \
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while(0)
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#define TC_FIX_DATA_PRINT(FILE, FIXP) \
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do \
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{ \
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fprintf((FILE), "addend2=%ld\n", \
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(unsigned long) (FIXP)->tc_fix_data); \
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} \
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while(0)
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/* end of tc-sparc.h */
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