fix XCOFF line number handling
[deliverable/binutils-gdb.git] / bfd / libcoff-in.h
CommitLineData
075caafd 1/* BFD COFF object file private structure.
beee31b1 2 Copyright (C) 1990, 91, 92, 93, 94, 1995 Free Software Foundation, Inc.
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3 Written by Cygnus Support.
4
5This file is part of BFD, the Binary File Descriptor library.
6
7This program is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2 of the License, or
10(at your option) any later version.
11
12This program is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with this program; if not, write to the Free Software
beee31b1 19Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
075caafd 20
69645d10 21#include "bfdlink.h"
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22
23/* Object file tdata; access macros */
24
25#define coff_data(bfd) ((bfd)->tdata.coff_obj_data)
26#define exec_hdr(bfd) (coff_data(bfd)->hdr)
beee31b1 27#define obj_pe(bfd) (coff_data(bfd)->pe)
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28#define obj_symbols(bfd) (coff_data(bfd)->symbols)
29#define obj_sym_filepos(bfd) (coff_data(bfd)->sym_filepos)
30
31#define obj_relocbase(bfd) (coff_data(bfd)->relocbase)
32#define obj_raw_syments(bfd) (coff_data(bfd)->raw_syments)
326e32d7 33#define obj_raw_syment_count(bfd) (coff_data(bfd)->raw_syment_count)
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34#define obj_convert(bfd) (coff_data(bfd)->conversion_table)
35#define obj_conv_table_size(bfd) (coff_data(bfd)->conv_table_size)
075caafd 36
69645d10 37#define obj_coff_external_syms(bfd) (coff_data (bfd)->external_syms)
beee31b1 38#define obj_coff_keep_syms(bfd) (coff_data (bfd)->keep_syms)
69645d10 39#define obj_coff_strings(bfd) (coff_data (bfd)->strings)
beee31b1 40#define obj_coff_keep_strings(bfd) (coff_data (bfd)->keep_strings)
69645d10 41#define obj_coff_sym_hashes(bfd) (coff_data (bfd)->sym_hashes)
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42
43/* `Tdata' information kept for COFF files. */
44
45typedef struct coff_tdata
46{
47 struct coff_symbol_struct *symbols; /* symtab for input bfd */
48 unsigned int *conversion_table;
49 int conv_table_size;
50 file_ptr sym_filepos;
51
075caafd 52 struct coff_ptr_struct *raw_syments;
075caafd 53 unsigned int raw_syment_count;
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54
55 /* These are only valid once writing has begun */
56 long int relocbase;
57
58 /* These members communicate important constants about the symbol table
59 to GDB's symbol-reading code. These `constants' unfortunately vary
60 from coff implementation to implementation... */
61 unsigned local_n_btmask;
62 unsigned local_n_btshft;
63 unsigned local_n_tmask;
64 unsigned local_n_tshift;
65 unsigned local_symesz;
66 unsigned local_auxesz;
67 unsigned local_linesz;
69645d10 68
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69 /* The unswapped external symbols. May be NULL. Read by
70 _bfd_coff_get_external_symbols. */
69645d10 71 PTR external_syms;
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72 /* If this is true, the external_syms may not be freed. */
73 boolean keep_syms;
74
75 /* The string table. May be NULL. Read by
76 _bfd_coff_read_string_table. */
69645d10 77 char *strings;
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78 /* If this is true, the strings may not be freed. */
79 boolean keep_strings;
80
81 /* is this a PE format coff file */
82 int pe;
83 /* Used by the COFF backend linker. */
69645d10 84 struct coff_link_hash_entry **sym_hashes;
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85
86 struct bfd_link_info *link_info;
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87} coff_data_type;
88
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89/* Tdata for pe image files. */
90typedef struct pe_tdata
91{
92 coff_data_type coff;
93 struct internal_extra_pe_aouthdr pe_opthdr;
94 int dll;
95 int has_reloc_section;
c974e19e 96 boolean (*in_reloc_p) PARAMS((bfd *, reloc_howto_type *));
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97} pe_data_type;
98
99#define pe_data(bfd) ((bfd)->tdata.pe_obj_data)
100
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101/* Tdata for XCOFF files. */
102
103struct xcoff_tdata
104{
105 /* Basic COFF information. */
106 coff_data_type coff;
107
108 /* TOC value. */
109 bfd_vma toc;
110
111 /* .text alignment from optional header. */
112 int text_align_power;
113
114 /* .data alignment from optional header. */
115 int data_align_power;
116
117 /* modtype from optional header. */
118 short modtype;
119
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120 /* cputype from optional header. */
121 short cputype;
122
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123 /* maxdata from optional header. */
124 bfd_size_type maxdata;
125
126 /* maxstack from optional header. */
127 bfd_size_type maxstack;
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128
129 /* Used by the XCOFF backend linker. */
130 asection **csects;
131 unsigned long *debug_indices;
132 unsigned int import_file_id;
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133};
134
135#define xcoff_data(abfd) ((abfd)->tdata.xcoff_obj_data)
beee31b1 136
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137/* We take the address of the first element of a asymbol to ensure that the
138 * macro is only ever applied to an asymbol. */
139#define coffsymbol(asymbol) ((coff_symbol_type *)(&((asymbol)->the_bfd)))
140
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141/* The used_by_bfd field of a section may be set to a pointer to this
142 structure. */
143
144struct coff_section_tdata
145{
146 /* The relocs, swapped into COFF internal form. This may be NULL. */
147 struct internal_reloc *relocs;
148 /* If this is true, the relocs entry may not be freed. */
149 boolean keep_relocs;
150 /* The section contents. This may be NULL. */
151 bfd_byte *contents;
152 /* If this is true, the contents entry may not be freed. */
153 boolean keep_contents;
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154 /* Information cached by coff_find_nearest_line. */
155 bfd_vma offset;
156 unsigned int i;
157 const char *function;
158 int line_base;
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159 /* Available for individual backends. */
160 PTR tdata;
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161};
162
163/* An accessor macro for the coff_section_tdata structure. */
164#define coff_section_data(abfd, sec) \
165 ((struct coff_section_tdata *) (sec)->used_by_bfd)
166
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167/* Tdata for sections in XCOFF files. This is used by the linker. */
168
169struct xcoff_section_tdata
170{
171 /* Used for XCOFF csects created by the linker; points to the real
172 XCOFF section which contains this csect. */
173 asection *enclosing;
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174 /* The lineno_count field for the enclosing section, because we are
175 going to clobber it there. */
176 unsigned int lineno_count;
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177 /* The first and one past the last symbol indices for symbols used
178 by this csect. */
179 unsigned long first_symndx;
180 unsigned long last_symndx;
181 /* The number of .loader relocs in this csect. */
182 size_t ldrel_count;
183};
184
185/* An accessor macro the xcoff_section_tdata structure. */
186#define xcoff_section_data(abfd, sec) \
187 ((struct xcoff_section_tdata *) coff_section_data ((abfd), (sec))->tdata)
188
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189/* COFF linker hash table entries. */
190
191struct coff_link_hash_entry
192{
193 struct bfd_link_hash_entry root;
194
195 /* Symbol index in output file. Set to -1 initially. Set to -2 if
196 there is a reloc against this symbol. */
197 long indx;
198
199 /* Symbol type. */
200 unsigned short type;
201
202 /* Symbol class. */
203 unsigned char class;
204
205 /* Number of auxiliary entries. */
206 char numaux;
207
208 /* BFD to take auxiliary entries from. */
209 bfd *auxbfd;
210
211 /* Pointer to array of auxiliary entries, if any. */
212 union internal_auxent *aux;
213};
214
215/* COFF linker hash table. */
216
217struct coff_link_hash_table
218{
219 struct bfd_link_hash_table root;
220};
221
222/* Look up an entry in a COFF linker hash table. */
223
224#define coff_link_hash_lookup(table, string, create, copy, follow) \
225 ((struct coff_link_hash_entry *) \
226 bfd_link_hash_lookup (&(table)->root, (string), (create), \
227 (copy), (follow)))
228
229/* Traverse a COFF linker hash table. */
230
231#define coff_link_hash_traverse(table, func, info) \
232 (bfd_link_hash_traverse \
233 (&(table)->root, \
234 (boolean (*) PARAMS ((struct bfd_link_hash_entry *, PTR))) (func), \
235 (info)))
236
237/* Get the COFF linker hash table from a link_info structure. */
238
239#define coff_hash_table(p) ((struct coff_link_hash_table *) ((p)->hash))
240
075caafd 241/* Functions in coffgen.c. */
69645d10 242extern const bfd_target *coff_object_p PARAMS ((bfd *));
075caafd 243extern struct sec *coff_section_from_bfd_index PARAMS ((bfd *, int));
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244extern long coff_get_symtab_upper_bound PARAMS ((bfd *));
245extern long coff_get_symtab PARAMS ((bfd *, asymbol **));
246extern int coff_count_linenumbers PARAMS ((bfd *));
075caafd 247extern struct coff_symbol_struct *coff_symbol_from PARAMS ((bfd *, asymbol *));
beee31b1 248extern boolean coff_renumber_symbols PARAMS ((bfd *, int *));
075caafd 249extern void coff_mangle_symbols PARAMS ((bfd *));
69645d10 250extern boolean coff_write_symbols PARAMS ((bfd *));
326e32d7 251extern boolean coff_write_linenumbers PARAMS ((bfd *));
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252extern alent *coff_get_lineno PARAMS ((bfd *, asymbol *));
253extern asymbol *coff_section_symbol PARAMS ((bfd *, char *));
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254extern boolean _bfd_coff_get_external_symbols PARAMS ((bfd *));
255extern const char *_bfd_coff_read_string_table PARAMS ((bfd *));
256extern boolean _bfd_coff_free_symbols PARAMS ((bfd *));
075caafd 257extern struct coff_ptr_struct *coff_get_normalized_symtab PARAMS ((bfd *));
326e32d7 258extern long coff_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
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259extern asymbol *coff_make_empty_symbol PARAMS ((bfd *));
260extern void coff_print_symbol PARAMS ((bfd *, PTR filep, asymbol *,
261 bfd_print_symbol_type how));
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262extern void coff_get_symbol_info PARAMS ((bfd *, asymbol *,
263 symbol_info *ret));
264extern asymbol *coff_bfd_make_debug_symbol PARAMS ((bfd *, PTR,
265 unsigned long));
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266extern boolean coff_find_nearest_line PARAMS ((bfd *,
267 asection *,
268 asymbol **,
269 bfd_vma offset,
270 CONST char **filename_ptr,
271 CONST char **functionname_ptr,
272 unsigned int *line_ptr));
273extern int coff_sizeof_headers PARAMS ((bfd *, boolean reloc));
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274extern boolean bfd_coff_reloc16_relax_section
275 PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
075caafd 276extern bfd_byte *bfd_coff_reloc16_get_relocated_section_contents
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277 PARAMS ((bfd *, struct bfd_link_info *, struct bfd_link_order *,
278 bfd_byte *, boolean relocateable, asymbol **));
075caafd 279extern bfd_vma bfd_coff_reloc16_get_value PARAMS ((arelent *,
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280 struct bfd_link_info *,
281 asection *));
282extern void bfd_perform_slip PARAMS ((bfd *abfd, unsigned int slip,
283 asection *input_section,
284 bfd_vma val));
075caafd 285
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286/* Functions in cofflink.c. */
287
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288extern struct bfd_hash_entry *_bfd_coff_link_hash_newfunc
289 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
290extern boolean _bfd_coff_link_hash_table_init
291 PARAMS ((struct coff_link_hash_table *, bfd *,
292 struct bfd_hash_entry *(*) (struct bfd_hash_entry *,
293 struct bfd_hash_table *,
294 const char *)));
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295extern struct bfd_link_hash_table *_bfd_coff_link_hash_table_create
296 PARAMS ((bfd *));
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297extern const char *_bfd_coff_internal_syment_name
298 PARAMS ((bfd *, const struct internal_syment *, char *));
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299extern boolean _bfd_coff_link_add_symbols
300 PARAMS ((bfd *, struct bfd_link_info *));
301extern boolean _bfd_coff_final_link
302 PARAMS ((bfd *, struct bfd_link_info *));
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303extern struct internal_reloc *_bfd_coff_read_internal_relocs
304 PARAMS ((bfd *, asection *, boolean, bfd_byte *, boolean,
305 struct internal_reloc *));
306extern boolean _bfd_coff_generic_relocate_section
307 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
308 struct internal_reloc *, struct internal_syment *, asection **));
69645d10 309
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310/* Functions in xcofflink.c. */
311
312extern struct bfd_link_hash_table *_bfd_xcoff_bfd_link_hash_table_create
313 PARAMS ((bfd *));
314extern boolean _bfd_xcoff_bfd_link_add_symbols
315 PARAMS ((bfd *, struct bfd_link_info *));
316extern boolean _bfd_xcoff_bfd_final_link
317 PARAMS ((bfd *, struct bfd_link_info *));
318extern boolean _bfd_ppc_xcoff_relocate_section
319 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
320 struct internal_reloc *, struct internal_syment *, asection **));
321
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322/* And more taken from the source .. */
323
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