150 lines
4.9 KiB
C
150 lines
4.9 KiB
C
/* tc-sparc.h - Macros and type defines for the sparc.
|
|
Copyright (C) 1989, 90-96, 1997 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. */
|
|
|
|
#ifndef TC_SPARC
|
|
#define TC_SPARC 1
|
|
|
|
#ifdef ANSI_PROTOTYPES
|
|
struct frag;
|
|
#endif
|
|
|
|
/* This is used to set the default value for `target_big_endian'. */
|
|
#define TARGET_BYTES_BIG_ENDIAN 1
|
|
|
|
#define LOCAL_LABELS_FB 1
|
|
|
|
#define TARGET_ARCH bfd_arch_sparc
|
|
|
|
extern const char *sparc_target_format PARAMS ((void));
|
|
#define TARGET_FORMAT sparc_target_format ()
|
|
|
|
#ifdef TE_SPARCAOUT
|
|
/* Bi-endian support may eventually be unconditional, but until things are
|
|
working well it's only provided for targets that need it. */
|
|
#define SPARC_BIENDIAN
|
|
#endif
|
|
|
|
#define WORKING_DOT_WORD
|
|
|
|
#define md_convert_frag(b,s,f) {as_fatal ("sparc convert_frag\n");}
|
|
#define md_create_long_jump(p,f,t,fr,s) as_fatal("sparc_create_long_jump")
|
|
#define md_create_short_jump(p,f,t,fr,s) as_fatal("sparc_create_short_jump")
|
|
#define md_estimate_size_before_relax(f,s) \
|
|
(as_fatal("estimate_size_before_relax called"),1)
|
|
|
|
#define LISTING_HEADER "SPARC GAS "
|
|
|
|
extern int sparc_pic_code;
|
|
|
|
#define md_do_align(n, fill, len, max, around) \
|
|
if ((n) && (n) <= 10 && !need_pass_2 && !(fill) \
|
|
&& now_seg != data_section && now_seg != bss_section) \
|
|
{ \
|
|
char *p; \
|
|
p = frag_var (rs_align_code, 1024, 1, (relax_substateT) 1024, \
|
|
(symbolS *) 0, (offsetT) (n), (char *) 0); \
|
|
*p = 0x00; \
|
|
goto around; \
|
|
}
|
|
|
|
/* We require .word, et. al., to be aligned correctly. */
|
|
#define md_cons_align(nbytes) sparc_cons_align (nbytes)
|
|
extern void sparc_cons_align PARAMS ((int));
|
|
#define HANDLE_ALIGN(fragp) sparc_handle_align (fragp)
|
|
extern void sparc_handle_align PARAMS ((struct frag *));
|
|
|
|
#if defined (OBJ_ELF) || defined (OBJ_AOUT)
|
|
|
|
/* 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.
|
|
|
|
If the reloc is against an externally visible symbol, then the
|
|
a.out assembler should not do the relocation if generating PIC, and
|
|
the ELF assembler should never do the relocation. */
|
|
|
|
#ifdef OBJ_ELF
|
|
#define obj_relocate_extern 0
|
|
#else
|
|
#define obj_relocate_extern (! sparc_pic_code)
|
|
#endif
|
|
|
|
#define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \
|
|
(obj_relocate_extern \
|
|
|| (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)))
|
|
#endif
|
|
|
|
/* I know that "call 0" fails in sparc-coff if this doesn't return 1. I
|
|
don't know about other relocation types, or other formats, yet. */
|
|
#ifdef OBJ_COFF
|
|
#define TC_FORCE_RELOCATION(FIXP) \
|
|
((FIXP)->fx_r_type == BFD_RELOC_32_PCREL_S2 \
|
|
&& ((FIXP)->fx_addsy == 0 \
|
|
|| S_GET_SEGMENT ((FIXP)->fx_addsy) == absolute_section))
|
|
#define RELOC_REQUIRES_SYMBOL
|
|
#endif
|
|
|
|
#define MD_APPLY_FIX3
|
|
#define TC_HANDLES_FX_DONE
|
|
|
|
#ifdef OBJ_ELF
|
|
/* Keep relocations against global symbols. Don't turn them into
|
|
relocations against sections. This is required for the dynamic
|
|
linker to operate properly. When generating PIC, we need to keep
|
|
any non PC relative reloc. */
|
|
#define tc_fix_adjustable(FIX) \
|
|
(! S_IS_EXTERNAL ((FIX)->fx_addsy) \
|
|
&& ! S_IS_WEAK ((FIX)->fx_addsy) \
|
|
&& (! sparc_pic_code \
|
|
|| (FIX)->fx_pcrel \
|
|
|| ((FIX)->fx_subsy != NULL \
|
|
&& (S_GET_SEGMENT ((FIX)->fx_subsy) \
|
|
== S_GET_SEGMENT ((FIX)->fx_addsy))) \
|
|
|| strchr (S_GET_NAME ((FIX)->fx_addsy), '\001') != NULL \
|
|
|| strchr (S_GET_NAME ((FIX)->fx_addsy), '\002') != NULL))
|
|
#endif
|
|
|
|
#ifdef OBJ_AOUT
|
|
/* When generating PIC code, we must not adjust any reloc which will
|
|
turn into a reloc against the global offset table. */
|
|
#define tc_fix_adjustable(FIX) \
|
|
(! sparc_pic_code \
|
|
|| (FIX)->fx_pcrel \
|
|
|| (FIX)->fx_r_type == BFD_RELOC_16 \
|
|
|| (FIX)->fx_r_type == BFD_RELOC_32)
|
|
#endif
|
|
|
|
#define elf_tc_final_processing sparc_elf_final_processing
|
|
extern void sparc_elf_final_processing PARAMS ((void));
|
|
|
|
#define md_operand(x)
|
|
|
|
extern void sparc_md_end PARAMS ((void));
|
|
#define md_end() sparc_md_end ()
|
|
|
|
#endif
|
|
|
|
/* end of tc-sparc.h */
|