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252b5132 | 1 | /* tc-sparc.h - Macros and type defines for the sparc. |
f7e42eb4 NC |
2 | Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
3 | 1999, 2000 Free Software Foundation, Inc. | |
252b5132 RH |
4 | |
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as | |
9 | published by the Free Software Foundation; either version 2, | |
10 | or (at your option) any later version. | |
11 | ||
12 | GAS is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
15 | the GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public | |
18 | License along with GAS; see the file COPYING. If not, write | |
19 | to the Free Software Foundation, 59 Temple Place - Suite 330, | |
20 | Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | #ifndef TC_SPARC | |
23 | #define TC_SPARC 1 | |
24 | ||
25 | #ifdef ANSI_PROTOTYPES | |
26 | struct frag; | |
27 | #endif | |
28 | ||
29 | /* This is used to set the default value for `target_big_endian'. */ | |
30 | #define TARGET_BYTES_BIG_ENDIAN 1 | |
31 | ||
32 | #define LOCAL_LABELS_FB 1 | |
33 | ||
34 | #define TARGET_ARCH bfd_arch_sparc | |
35 | ||
36 | extern const char *sparc_target_format PARAMS ((void)); | |
37 | #define TARGET_FORMAT sparc_target_format () | |
38 | ||
dabe3bbc RH |
39 | #define RELOC_EXPANSION_POSSIBLE |
40 | #define MAX_RELOC_EXPANSION 2 | |
41 | ||
252b5132 RH |
42 | #if 0 |
43 | #ifdef TE_SPARCAOUT | |
44 | /* Bi-endian support may eventually be unconditional, but until things are | |
45 | working well it's only provided for targets that need it. */ | |
46 | #define SPARC_BIENDIAN | |
47 | #endif | |
48 | #endif | |
49 | /* Make it unconditional and check if -EL is valid after option parsing */ | |
50 | #define SPARC_BIENDIAN | |
51 | ||
52 | #define WORKING_DOT_WORD | |
53 | ||
0a9ef439 RH |
54 | #define md_convert_frag(b,s,f) \ |
55 | as_fatal (_("sparc convert_frag\n")) | |
252b5132 | 56 | #define md_estimate_size_before_relax(f,s) \ |
0a9ef439 | 57 | (as_fatal(_("estimate_size_before_relax called")), 1) |
252b5132 RH |
58 | |
59 | #define LISTING_HEADER "SPARC GAS " | |
60 | ||
61 | extern int sparc_pic_code; | |
62 | ||
252b5132 RH |
63 | /* We require .word, et. al., to be aligned correctly. */ |
64 | #define md_cons_align(nbytes) sparc_cons_align (nbytes) | |
65 | extern void sparc_cons_align PARAMS ((int)); | |
0a9ef439 | 66 | |
252b5132 RH |
67 | #define HANDLE_ALIGN(fragp) sparc_handle_align (fragp) |
68 | extern void sparc_handle_align PARAMS ((struct frag *)); | |
69 | ||
0a9ef439 RH |
70 | #define MAX_MEM_FOR_RS_ALIGN_CODE (3 + 4 + 4) |
71 | ||
252b5132 RH |
72 | #if defined (OBJ_ELF) || defined (OBJ_AOUT) |
73 | ||
74 | /* This expression evaluates to false if the relocation is for a local | |
75 | object for which we still want to do the relocation at runtime. | |
76 | True if we are willing to perform this relocation while building | |
77 | the .o file. | |
78 | ||
79 | If the reloc is against an externally visible symbol, then the | |
80 | a.out assembler should not do the relocation if generating PIC, and | |
81 | the ELF assembler should never do the relocation. */ | |
82 | ||
83 | #ifdef OBJ_ELF | |
84 | #define obj_relocate_extern 0 | |
85 | #else | |
86 | #define obj_relocate_extern (! sparc_pic_code) | |
87 | #endif | |
88 | ||
89 | #define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \ | |
90 | (obj_relocate_extern \ | |
91 | || (FIX)->fx_addsy == NULL \ | |
92 | || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \ | |
93 | && ! S_IS_WEAK ((FIX)->fx_addsy) \ | |
94 | && S_IS_DEFINED ((FIX)->fx_addsy) \ | |
95 | && ! S_IS_COMMON ((FIX)->fx_addsy))) | |
96 | #endif | |
97 | ||
98 | /* I know that "call 0" fails in sparc-coff if this doesn't return 1. I | |
99 | don't know about other relocation types, or other formats, yet. */ | |
100 | #ifdef OBJ_COFF | |
101 | #define TC_FORCE_RELOCATION(FIXP) \ | |
102 | ((FIXP)->fx_r_type == BFD_RELOC_32_PCREL_S2 \ | |
103 | && ((FIXP)->fx_addsy == 0 \ | |
104 | || S_GET_SEGMENT ((FIXP)->fx_addsy) == absolute_section)) | |
105 | #define RELOC_REQUIRES_SYMBOL | |
106 | #endif | |
107 | ||
108 | #ifdef OBJ_ELF | |
109 | #define TC_FORCE_RELOCATION(fixp) elf32_sparc_force_relocation(fixp) | |
110 | extern int elf32_sparc_force_relocation PARAMS ((struct fix *)); | |
111 | #endif | |
112 | ||
113 | #define MD_APPLY_FIX3 | |
114 | #define TC_HANDLES_FX_DONE | |
115 | ||
116 | #ifdef OBJ_ELF | |
117 | /* Keep relocations against global symbols. Don't turn them into | |
118 | relocations against sections. This is required for the dynamic | |
119 | linker to operate properly. When generating PIC, we need to keep | |
153b546a ILT |
120 | any non PC relative reloc. The PIC part of this test must be |
121 | parallel to the code in tc_gen_reloc which converts relocations to | |
122 | GOT relocations. */ | |
252b5132 RH |
123 | #define tc_fix_adjustable(FIX) \ |
124 | (! S_IS_EXTERNAL ((FIX)->fx_addsy) \ | |
125 | && ! S_IS_WEAK ((FIX)->fx_addsy) \ | |
d2e71411 ILT |
126 | && (FIX)->fx_r_type != BFD_RELOC_VTABLE_INHERIT \ |
127 | && (FIX)->fx_r_type != BFD_RELOC_VTABLE_ENTRY \ | |
252b5132 | 128 | && (! sparc_pic_code \ |
a1f2d742 ILT |
129 | || ((FIX)->fx_r_type != BFD_RELOC_HI22 \ |
130 | && (FIX)->fx_r_type != BFD_RELOC_LO10 \ | |
131 | && (FIX)->fx_r_type != BFD_RELOC_SPARC13 \ | |
132 | && ((FIX)->fx_r_type != BFD_RELOC_32_PCREL_S2 \ | |
133 | || (S_IS_DEFINED ((FIX)->fx_addsy) \ | |
134 | && ! S_IS_COMMON ((FIX)->fx_addsy) \ | |
135 | && ! S_IS_EXTERNAL ((FIX)->fx_addsy) \ | |
136 | && ! S_IS_WEAK ((FIX)->fx_addsy))) \ | |
137 | && ((FIX)->fx_pcrel \ | |
138 | || ((FIX)->fx_subsy != NULL \ | |
139 | && (S_GET_SEGMENT ((FIX)->fx_subsy) \ | |
140 | == S_GET_SEGMENT ((FIX)->fx_addsy))) \ | |
141 | || S_IS_LOCAL ((FIX)->fx_addsy))))) | |
6d8809aa RH |
142 | |
143 | /* Finish up the entire symtab. */ | |
144 | #define tc_adjust_symtab() sparc_adjust_symtab () | |
145 | extern void sparc_adjust_symtab PARAMS ((void)); | |
252b5132 RH |
146 | #endif |
147 | ||
148 | #ifdef OBJ_AOUT | |
149 | /* When generating PIC code, we must not adjust any reloc which will | |
150 | turn into a reloc against the global offset table, nor any reloc | |
151 | which we will need if a symbol is overridden. */ | |
152 | #define tc_fix_adjustable(FIX) \ | |
153 | (! sparc_pic_code \ | |
154 | || ((FIX)->fx_pcrel \ | |
155 | && ((FIX)->fx_addsy == NULL \ | |
156 | || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \ | |
157 | && ! S_IS_WEAK ((FIX)->fx_addsy)))) \ | |
158 | || (FIX)->fx_r_type == BFD_RELOC_16 \ | |
159 | || (FIX)->fx_r_type == BFD_RELOC_32) | |
160 | #endif | |
161 | ||
162 | #define elf_tc_final_processing sparc_elf_final_processing | |
163 | extern void sparc_elf_final_processing PARAMS ((void)); | |
164 | ||
165 | #define md_operand(x) | |
166 | ||
167 | extern void sparc_md_end PARAMS ((void)); | |
168 | #define md_end() sparc_md_end () | |
169 | ||
170 | #endif | |
171 | ||
172 | #define TC_CONS_FIX_NEW cons_fix_new_sparc | |
173 | extern void cons_fix_new_sparc | |
174 | PARAMS ((struct frag *, int, unsigned int, struct expressionS *)); | |
175 | ||
dabe3bbc RH |
176 | #define TC_FIX_TYPE valueT |
177 | ||
178 | #define TC_INIT_FIX_DATA(X) \ | |
179 | do \ | |
180 | { \ | |
181 | (X)->tc_fix_data = 0; \ | |
182 | } \ | |
814f6641 | 183 | while (0) |
dabe3bbc RH |
184 | |
185 | #define TC_FIX_DATA_PRINT(FILE, FIXP) \ | |
186 | do \ | |
187 | { \ | |
814f6641 | 188 | fprintf ((FILE), "addend2=%ld\n", \ |
dabe3bbc RH |
189 | (unsigned long) (FIXP)->tc_fix_data); \ |
190 | } \ | |
814f6641 | 191 | while (0) |
dabe3bbc | 192 | |
b8e904dc JJ |
193 | #define DWARF2_LINE_MIN_INSN_LENGTH 4 |
194 | ||
252b5132 | 195 | /* end of tc-sparc.h */ |