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beb1bf64 | 1 | /* BFD XCOFF object file private structure. |
eb1e0e80 | 2 | Copyright (C) 2001, 2002 Free Software Foundation, Inc. |
beb1bf64 TR |
3 | Written by Tom Rix, Redhat. |
4 | ||
eb1e0e80 | 5 | This file is part of BFD, the Binary File Descriptor library. |
beb1bf64 | 6 | |
eb1e0e80 NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
beb1bf64 | 11 | |
eb1e0e80 NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
beb1bf64 | 16 | |
eb1e0e80 NC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
beb1bf64 TR |
20 | |
21 | #ifndef LIBXCOFF_H | |
22 | #define LIBXCOFF_H | |
23 | ||
24 | /* This is the backend information kept for XCOFF files. This | |
25 | structure is constant for a particular backend. The first element | |
26 | is the COFF backend data structure, so that XCOFF targets can use | |
27 | the generic COFF code. */ | |
28 | ||
29 | struct xcoff_backend_data_rec | |
30 | { | |
330693f5 | 31 | /* COFF backend information. */ |
beb1bf64 TR |
32 | bfd_coff_backend_data coff; |
33 | ||
eb1e0e80 | 34 | /* Magic number. */ |
dc810e39 | 35 | unsigned short _xcoff_magic_number; |
beb1bf64 | 36 | |
eb1e0e80 | 37 | /* Architecture and machine for coff_set_arch_mach_hook. */ |
beb1bf64 TR |
38 | enum bfd_architecture _xcoff_architecture; |
39 | long _xcoff_machine; | |
40 | ||
eb1e0e80 | 41 | /* Function pointers to xcoff specific swap routines. */ |
814fa6ab AM |
42 | void (* _xcoff_swap_ldhdr_in)(bfd *, const PTR, struct internal_ldhdr *); |
43 | void (* _xcoff_swap_ldhdr_out)(bfd *, const struct internal_ldhdr *, PTR); | |
44 | void (* _xcoff_swap_ldsym_in)(bfd *, const PTR, struct internal_ldsym *); | |
45 | void (* _xcoff_swap_ldsym_out)(bfd *, const struct internal_ldsym *, PTR); | |
46 | void (* _xcoff_swap_ldrel_in)(bfd *, const PTR, struct internal_ldrel *); | |
47 | void (* _xcoff_swap_ldrel_out)(bfd *, const struct internal_ldrel *, PTR); | |
beb1bf64 | 48 | |
eb1e0e80 | 49 | /* Size of the external struct. */ |
dc810e39 | 50 | unsigned int _xcoff_ldhdrsz; |
beb1bf64 TR |
51 | unsigned int _xcoff_ldsymsz; |
52 | unsigned int _xcoff_ldrelsz; | |
53 | ||
eb1e0e80 | 54 | /* Size an entry in a descriptor section. */ |
beb1bf64 TR |
55 | unsigned int _xcoff_function_descriptor_size; |
56 | ||
eb1e0e80 | 57 | /* Size of the small aout file header. */ |
beb1bf64 TR |
58 | unsigned int _xcoff_small_aout_header_size; |
59 | ||
330693f5 TR |
60 | /* Loader version |
61 | 1 : XCOFF32 | |
eb1e0e80 | 62 | 2 : XCOFF64. */ |
beb1bf64 TR |
63 | unsigned long _xcoff_ldhdr_version; |
64 | ||
eb1e0e80 NC |
65 | boolean (* _xcoff_put_symbol_name) |
66 | PARAMS ((bfd *, struct bfd_strtab_hash *, struct internal_syment *, | |
67 | const char *)); | |
beb1bf64 | 68 | |
eb1e0e80 NC |
69 | boolean (* _xcoff_put_ldsymbol_name) |
70 | PARAMS ((bfd *, struct xcoff_loader_info *, struct internal_ldsym *, | |
71 | const char *)); | |
beb1bf64 TR |
72 | |
73 | reloc_howto_type *_xcoff_dynamic_reloc; | |
74 | ||
eb1e0e80 NC |
75 | asection * (* _xcoff_create_csect_from_smclas) |
76 | PARAMS ((bfd *, union internal_auxent *, const char *)); | |
beb1bf64 | 77 | |
330693f5 TR |
78 | /* Line number and relocation overflow. |
79 | XCOFF32 overflows to another section when the line number or the | |
80 | relocation count exceeds 0xffff. XCOFF64 does not overflow. */ | |
beb1bf64 TR |
81 | boolean (*_xcoff_is_lineno_count_overflow)(bfd *, bfd_vma); |
82 | boolean (*_xcoff_is_reloc_count_overflow)(bfd *, bfd_vma); | |
83 | ||
330693f5 TR |
84 | /* Loader section symbol and relocation table offset |
85 | XCOFF32 is after the .loader header | |
eb1e0e80 | 86 | XCOFF64 is offset in .loader header. */ |
beb1bf64 TR |
87 | bfd_vma (*_xcoff_loader_symbol_offset)(bfd *, struct internal_ldhdr *); |
88 | bfd_vma (*_xcoff_loader_reloc_offset)(bfd *, struct internal_ldhdr *); | |
330693f5 TR |
89 | |
90 | /* Global linkage. The first word of global linkage code must be be | |
91 | modified by filling in the correct TOC offset. */ | |
beb1bf64 | 92 | unsigned long *_xcoff_glink_code; |
330693f5 TR |
93 | |
94 | /* Size of the global link code in bytes of the xcoff_glink_code table. */ | |
beb1bf64 TR |
95 | unsigned long _xcoff_glink_size; |
96 | ||
eb1e0e80 | 97 | /* rtinit. */ |
9a4c7f16 | 98 | unsigned int _xcoff_rtinit_size; |
69f284c7 TR |
99 | boolean (*_xcoff_generate_rtinit)(bfd *, const char *, const char *, |
100 | boolean); | |
beb1bf64 TR |
101 | }; |
102 | ||
103 | /* Look up an entry in an XCOFF link hash table. */ | |
beb1bf64 TR |
104 | #define xcoff_link_hash_lookup(table, string, create, copy, follow) \ |
105 | ((struct xcoff_link_hash_entry *) \ | |
106 | bfd_link_hash_lookup (&(table)->root, (string), (create), (copy),\ | |
107 | (follow))) | |
108 | ||
109 | /* Traverse an XCOFF link hash table. */ | |
beb1bf64 TR |
110 | #define xcoff_link_hash_traverse(table, func, info) \ |
111 | (bfd_link_hash_traverse \ | |
112 | (&(table)->root, \ | |
113 | (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \ | |
114 | (info))) | |
115 | ||
116 | /* Get the XCOFF link hash table from the info structure. This is | |
117 | just a cast. */ | |
beb1bf64 TR |
118 | #define xcoff_hash_table(p) ((struct xcoff_link_hash_table *) ((p)->hash)) |
119 | ||
120 | ||
121 | #define xcoff_backend(abfd) \ | |
122 | ((struct xcoff_backend_data_rec *) (abfd)->xvec->backend_data) | |
123 | ||
124 | #define bfd_xcoff_magic_number(a) ((xcoff_backend(a)->_xcoff_magic_number)) | |
125 | #define bfd_xcoff_architecture(a) ((xcoff_backend(a)->_xcoff_architecture)) | |
126 | #define bfd_xcoff_machine(a) ((xcoff_backend(a)->_xcoff_machine)) | |
127 | ||
128 | #define bfd_xcoff_swap_ldhdr_in(a, b, c) \ | |
129 | ((xcoff_backend(a)->_xcoff_swap_ldhdr_in) ((a), (b), (c))) | |
130 | ||
131 | #define bfd_xcoff_swap_ldhdr_out(a, b, c) \ | |
132 | ((xcoff_backend(a)->_xcoff_swap_ldhdr_out) ((a), (b), (c))) | |
133 | ||
134 | #define bfd_xcoff_swap_ldsym_in(a, b, c) \ | |
135 | ((xcoff_backend(a)->_xcoff_swap_ldsym_in) ((a), (b), (c))) | |
136 | ||
137 | #define bfd_xcoff_swap_ldsym_out(a, b, c) \ | |
138 | ((xcoff_backend(a)->_xcoff_swap_ldsym_out) ((a), (b), (c))) | |
139 | ||
140 | #define bfd_xcoff_swap_ldrel_in(a, b, c) \ | |
141 | ((xcoff_backend(a)->_xcoff_swap_ldrel_in) ((a), (b), (c))) | |
142 | ||
143 | #define bfd_xcoff_swap_ldrel_out(a, b, c) \ | |
144 | ((xcoff_backend(a)->_xcoff_swap_ldrel_out) ((a), (b), (c))) | |
145 | ||
146 | #define bfd_xcoff_ldhdrsz(a) ((xcoff_backend(a)->_xcoff_ldhdrsz)) | |
147 | #define bfd_xcoff_ldsymsz(a) ((xcoff_backend(a)->_xcoff_ldsymsz)) | |
148 | #define bfd_xcoff_ldrelsz(a) ((xcoff_backend(a)->_xcoff_ldrelsz)) | |
149 | #define bfd_xcoff_function_descriptor_size(a) \ | |
150 | ((xcoff_backend(a)->_xcoff_function_descriptor_size)) | |
151 | #define bfd_xcoff_small_aout_header_size(a) \ | |
152 | ((xcoff_backend(a)->_xcoff_small_aout_header_size)) | |
153 | ||
154 | #define bfd_xcoff_ldhdr_version(a) ((xcoff_backend(a)->_xcoff_ldhdr_version)) | |
155 | ||
156 | #define bfd_xcoff_put_symbol_name(a, b, c, d) \ | |
157 | ((xcoff_backend(a)->_xcoff_put_symbol_name) ((a), (b), (c), (d))) | |
158 | ||
159 | #define bfd_xcoff_put_ldsymbol_name(a, b, c, d) \ | |
160 | ((xcoff_backend(a)->_xcoff_put_ldsymbol_name) ((a), (b), (c), (d))) | |
161 | ||
162 | /* Get the XCOFF hash table entries for a BFD. */ | |
163 | #define obj_xcoff_sym_hashes(bfd) \ | |
164 | ((struct xcoff_link_hash_entry **) obj_coff_sym_hashes (bfd)) | |
165 | ||
166 | #define bfd_xcoff_dynamic_reloc_howto(a) \ | |
167 | ((xcoff_backend(a)->_xcoff_dynamic_reloc)) | |
168 | ||
169 | #define bfd_xcoff_create_csect_from_smclas(a, b, c) \ | |
170 | ((xcoff_backend(a)->_xcoff_create_csect_from_smclas((a), (b), (c)))) | |
171 | ||
172 | #define bfd_xcoff_is_lineno_count_overflow(a, b) \ | |
173 | ((xcoff_backend(a)->_xcoff_is_lineno_count_overflow((a), (b)))) | |
174 | ||
175 | #define bfd_xcoff_is_reloc_count_overflow(a, b) \ | |
176 | ((xcoff_backend(a)->_xcoff_is_reloc_count_overflow((a), (b)))) | |
177 | ||
178 | #define bfd_xcoff_loader_symbol_offset(a, b) \ | |
179 | ((xcoff_backend(a)->_xcoff_loader_symbol_offset((a), (b)))) | |
180 | ||
181 | #define bfd_xcoff_loader_reloc_offset(a, b) \ | |
182 | ((xcoff_backend(a)->_xcoff_loader_reloc_offset((a), (b)))) | |
183 | ||
184 | #define bfd_xcoff_glink_code(a, b) ((xcoff_backend(a)->_xcoff_glink_code[(b)])) | |
185 | #define bfd_xcoff_glink_code_size(a) ((xcoff_backend(a)->_xcoff_glink_size)) | |
186 | ||
eb1e0e80 NC |
187 | /* Check for the magic number U803XTOCMAGIC or U64_TOCMAGIC for 64 bit |
188 | targets. */ | |
189 | #define bfd_xcoff_is_xcoff64(a) \ | |
190 | ( (0x01EF == (bfd_xcoff_magic_number(a))) \ | |
191 | || (0x01F7 == (bfd_xcoff_magic_number(a)))) | |
9a4c7f16 TR |
192 | |
193 | /* Check for the magic number U802TOMAGIC for 32 bit targets. */ | |
beb1bf64 TR |
194 | #define bfd_xcoff_is_xcoff32(a) (0x01DF == (bfd_xcoff_magic_number(a))) |
195 | ||
9a4c7f16 | 196 | #define bfd_xcoff_rtinit_size(a) ((xcoff_backend(a)->_xcoff_rtinit_size)) |
69f284c7 | 197 | #define bfd_xcoff_generate_rtinit(a, b, c, d) ((xcoff_backend(a)->_xcoff_generate_rtinit ((a), (b), (c), (d)))) |
9a4c7f16 | 198 | |
eb1e0e80 NC |
199 | /* Accessor macros for tdata. */ |
200 | #define bfd_xcoff_text_align_power(a) ((xcoff_data (a)->text_align_power)) | |
201 | #define bfd_xcoff_data_align_power(a) ((xcoff_data (a)->data_align_power)) | |
202 | ||
dbe341c6 TR |
203 | /* xcoff*_ppc_relocate_section macros */ |
204 | #define XCOFF_MAX_CALCULATE_RELOCATION (0x1c) | |
205 | #define XCOFF_MAX_COMPLAIN_OVERFLOW (4) | |
206 | /* N_ONES produces N one bits, without overflowing machine arithmetic. */ | |
207 | #ifdef N_ONES | |
208 | #undef N_ONES | |
209 | #endif | |
210 | #define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1) | |
211 | ||
212 | #define XCOFF_RELOC_FUNCTION_ARGS \ | |
213 | bfd *, asection *, bfd *, struct internal_reloc *, \ | |
214 | struct internal_syment *, struct reloc_howto_struct *, bfd_vma, bfd_vma, \ | |
215 | bfd_vma *relocation, bfd_byte *contents | |
216 | ||
217 | #define XCOFF_COMPLAIN_FUNCTION_ARGS \ | |
218 | bfd *, bfd_vma, bfd_vma, struct reloc_howto_struct *howto | |
219 | ||
220 | extern boolean (*xcoff_calculate_relocation[XCOFF_MAX_CALCULATE_RELOCATION]) | |
221 | (XCOFF_RELOC_FUNCTION_ARGS); | |
222 | extern boolean (*xcoff_complain_overflow[XCOFF_MAX_COMPLAIN_OVERFLOW]) | |
223 | (XCOFF_COMPLAIN_FUNCTION_ARGS); | |
224 | ||
f1f0d9ab TR |
225 | /* Relocation functions */ |
226 | boolean xcoff_reloc_type_noop PARAMS ((XCOFF_RELOC_FUNCTION_ARGS)); | |
227 | boolean xcoff_reloc_type_fail PARAMS ((XCOFF_RELOC_FUNCTION_ARGS)); | |
228 | boolean xcoff_reloc_type_pos PARAMS ((XCOFF_RELOC_FUNCTION_ARGS)); | |
229 | boolean xcoff_reloc_type_neg PARAMS ((XCOFF_RELOC_FUNCTION_ARGS)); | |
230 | boolean xcoff_reloc_type_rel PARAMS ((XCOFF_RELOC_FUNCTION_ARGS)); | |
231 | boolean xcoff_reloc_type_toc PARAMS ((XCOFF_RELOC_FUNCTION_ARGS)); | |
232 | boolean xcoff_reloc_type_ba PARAMS ((XCOFF_RELOC_FUNCTION_ARGS)); | |
233 | boolean xcoff_reloc_type_crel PARAMS ((XCOFF_RELOC_FUNCTION_ARGS)); | |
234 | ||
beb1bf64 | 235 | #endif /* LIBXCOFF_H */ |