1 /* tc-sparc.h - Macros and type defines for the sparc.
2 Copyright (C) 1989, 90-96, 1997 Free Software Foundation, Inc.
4 This file is part of GAS, the GNU Assembler.
6 GAS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as
8 published by the Free Software Foundation; either version 2,
9 or (at your option) any later version.
11 GAS is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
14 the GNU General Public License for more details.
16 You should have received a copy of the GNU General Public
17 License along with GAS; see the file COPYING. If not, write
18 to the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
24 #ifdef ANSI_PROTOTYPES
28 /* This is used to set the default value for `target_big_endian'. */
29 #define TARGET_BYTES_BIG_ENDIAN 1
31 #define LOCAL_LABELS_FB 1
33 #define TARGET_ARCH bfd_arch_sparc
35 extern const char *sparc_target_format
PARAMS ((void));
36 #define TARGET_FORMAT sparc_target_format ()
39 /* Bi-endian support may eventually be unconditional, but until things are
40 working well it's only provided for targets that need it. */
41 #define SPARC_BIENDIAN
44 #define WORKING_DOT_WORD
46 #define md_convert_frag(b,s,f) {as_fatal ("sparc convert_frag\n");}
47 #define md_create_long_jump(p,f,t,fr,s) as_fatal("sparc_create_long_jump")
48 #define md_create_short_jump(p,f,t,fr,s) as_fatal("sparc_create_short_jump")
49 #define md_estimate_size_before_relax(f,s) \
50 (as_fatal("estimate_size_before_relax called"),1)
52 #define LISTING_HEADER "SPARC GAS "
54 extern int sparc_pic_code
;
56 #define md_do_align(n, fill, len, max, around) \
57 if ((n) && (n) <= 10 && !need_pass_2 && !(fill) \
58 && now_seg != data_section && now_seg != bss_section) \
61 p = frag_var (rs_align_code, 1024, 1, (relax_substateT) 1024, \
62 (symbolS *) 0, (offsetT) (n), (char *) 0); \
67 /* We require .word, et. al., to be aligned correctly. */
68 #define md_cons_align(nbytes) sparc_cons_align (nbytes)
69 extern void sparc_cons_align
PARAMS ((int));
70 #define HANDLE_ALIGN(fragp) sparc_handle_align (fragp)
71 extern void sparc_handle_align
PARAMS ((struct frag
*));
73 #if defined (OBJ_ELF) || defined (OBJ_AOUT)
75 /* This expression evaluates to false if the relocation is for a local
76 object for which we still want to do the relocation at runtime.
77 True if we are willing to perform this relocation while building
80 If the reloc is against an externally visible symbol, then the
81 a.out assembler should not do the relocation if generating PIC, and
82 the ELF assembler should never do the relocation. */
85 #define obj_relocate_extern 0
87 #define obj_relocate_extern (! sparc_pic_code)
90 #define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \
91 (obj_relocate_extern \
92 || (FIX)->fx_addsy == NULL \
93 || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \
94 && ! S_IS_WEAK ((FIX)->fx_addsy) \
95 && S_IS_DEFINED ((FIX)->fx_addsy) \
96 && ! S_IS_COMMON ((FIX)->fx_addsy)))
99 /* I know that "call 0" fails in sparc-coff if this doesn't return 1. I
100 don't know about other relocation types, or other formats, yet. */
102 #define TC_FORCE_RELOCATION(FIXP) \
103 ((FIXP)->fx_r_type == BFD_RELOC_32_PCREL_S2 \
104 && ((FIXP)->fx_addsy == 0 \
105 || S_GET_SEGMENT ((FIXP)->fx_addsy) == absolute_section))
106 #define RELOC_REQUIRES_SYMBOL
109 #define MD_APPLY_FIX3
110 #define TC_HANDLES_FX_DONE
113 /* Keep relocations against global symbols. Don't turn them into
114 relocations against sections. This is required for the dynamic
115 linker to operate properly. When generating PIC, we need to keep
116 any non PC relative reloc. */
117 #define tc_fix_adjustable(FIX) \
118 (! S_IS_EXTERNAL ((FIX)->fx_addsy) \
119 && ! S_IS_WEAK ((FIX)->fx_addsy) \
120 && (! sparc_pic_code \
122 || ((FIX)->fx_subsy != NULL \
123 && (S_GET_SEGMENT ((FIX)->fx_subsy) \
124 == S_GET_SEGMENT ((FIX)->fx_addsy))) \
125 || strchr (S_GET_NAME ((FIX)->fx_addsy), '\001') != NULL \
126 || strchr (S_GET_NAME ((FIX)->fx_addsy), '\002') != NULL))
130 /* When generating PIC code, we must not adjust any reloc which will
131 turn into a reloc against the global offset table. */
132 #define tc_fix_adjustable(FIX) \
135 || (FIX)->fx_r_type == BFD_RELOC_16 \
136 || (FIX)->fx_r_type == BFD_RELOC_32)
139 #define elf_tc_final_processing sparc_elf_final_processing
140 extern void sparc_elf_final_processing
PARAMS ((void));
142 #define md_operand(x)
144 extern void sparc_md_end
PARAMS ((void));
145 #define md_end() sparc_md_end ()
149 /* end of tc-sparc.h */