elfnn-ia64.c revision 1.1.1.5 1 1.1 christos /* IA-64 support for 64-bit ELF
2 1.1.1.4 christos Copyright (C) 1998-2018 Free Software Foundation, Inc.
3 1.1 christos Contributed by David Mosberger-Tang <davidm (at) hpl.hp.com>
4 1.1 christos
5 1.1 christos This file is part of BFD, the Binary File Descriptor library.
6 1.1 christos
7 1.1 christos This program is free software; you can redistribute it and/or modify
8 1.1 christos it under the terms of the GNU General Public License as published by
9 1.1 christos the Free Software Foundation; either version 3 of the License, or
10 1.1 christos (at your option) any later version.
11 1.1 christos
12 1.1 christos This program is distributed in the hope that it will be useful,
13 1.1 christos but WITHOUT ANY WARRANTY; without even the implied warranty of
14 1.1 christos MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 1.1 christos GNU General Public License for more details.
16 1.1 christos
17 1.1 christos You should have received a copy of the GNU General Public License
18 1.1 christos along with this program; if not, write to the Free Software
19 1.1 christos Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 1.1 christos MA 02110-1301, USA. */
21 1.1 christos
22 1.1 christos #include "sysdep.h"
23 1.1 christos #include "bfd.h"
24 1.1 christos #include "libbfd.h"
25 1.1 christos #include "elf-bfd.h"
26 1.1 christos #include "opcode/ia64.h"
27 1.1 christos #include "elf/ia64.h"
28 1.1 christos #include "objalloc.h"
29 1.1 christos #include "hashtab.h"
30 1.1 christos #include "bfd_stdint.h"
31 1.1 christos #include "elfxx-ia64.h"
32 1.1 christos
33 1.1 christos #define ARCH_SIZE NN
34 1.1 christos
35 1.1 christos #if ARCH_SIZE == 64
36 1.1 christos #define LOG_SECTION_ALIGN 3
37 1.1 christos #endif
38 1.1 christos
39 1.1 christos #if ARCH_SIZE == 32
40 1.1 christos #define LOG_SECTION_ALIGN 2
41 1.1 christos #endif
42 1.1 christos
43 1.1 christos typedef struct bfd_hash_entry *(*new_hash_entry_func)
44 1.1 christos (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
45 1.1 christos
46 1.1 christos /* In dynamically (linker-) created sections, we generally need to keep track
47 1.1 christos of the place a symbol or expression got allocated to. This is done via hash
48 1.1 christos tables that store entries of the following type. */
49 1.1 christos
50 1.1 christos struct elfNN_ia64_dyn_sym_info
51 1.1 christos {
52 1.1 christos /* The addend for which this entry is relevant. */
53 1.1 christos bfd_vma addend;
54 1.1 christos
55 1.1 christos bfd_vma got_offset;
56 1.1 christos bfd_vma fptr_offset;
57 1.1 christos bfd_vma pltoff_offset;
58 1.1 christos bfd_vma plt_offset;
59 1.1 christos bfd_vma plt2_offset;
60 1.1 christos bfd_vma tprel_offset;
61 1.1 christos bfd_vma dtpmod_offset;
62 1.1 christos bfd_vma dtprel_offset;
63 1.1 christos
64 1.1 christos /* The symbol table entry, if any, that this was derived from. */
65 1.1 christos struct elf_link_hash_entry *h;
66 1.1 christos
67 1.1 christos /* Used to count non-got, non-plt relocations for delayed sizing
68 1.1 christos of relocation sections. */
69 1.1 christos struct elfNN_ia64_dyn_reloc_entry
70 1.1 christos {
71 1.1 christos struct elfNN_ia64_dyn_reloc_entry *next;
72 1.1 christos asection *srel;
73 1.1 christos int type;
74 1.1 christos int count;
75 1.1 christos
76 1.1 christos /* Is this reloc against readonly section? */
77 1.1 christos bfd_boolean reltext;
78 1.1 christos } *reloc_entries;
79 1.1 christos
80 1.1 christos /* TRUE when the section contents have been updated. */
81 1.1 christos unsigned got_done : 1;
82 1.1 christos unsigned fptr_done : 1;
83 1.1 christos unsigned pltoff_done : 1;
84 1.1 christos unsigned tprel_done : 1;
85 1.1 christos unsigned dtpmod_done : 1;
86 1.1 christos unsigned dtprel_done : 1;
87 1.1 christos
88 1.1 christos /* TRUE for the different kinds of linker data we want created. */
89 1.1 christos unsigned want_got : 1;
90 1.1 christos unsigned want_gotx : 1;
91 1.1 christos unsigned want_fptr : 1;
92 1.1 christos unsigned want_ltoff_fptr : 1;
93 1.1 christos unsigned want_plt : 1;
94 1.1 christos unsigned want_plt2 : 1;
95 1.1 christos unsigned want_pltoff : 1;
96 1.1 christos unsigned want_tprel : 1;
97 1.1 christos unsigned want_dtpmod : 1;
98 1.1 christos unsigned want_dtprel : 1;
99 1.1 christos };
100 1.1 christos
101 1.1 christos struct elfNN_ia64_local_hash_entry
102 1.1 christos {
103 1.1 christos int id;
104 1.1 christos unsigned int r_sym;
105 1.1 christos /* The number of elements in elfNN_ia64_dyn_sym_info array. */
106 1.1 christos unsigned int count;
107 1.1 christos /* The number of sorted elements in elfNN_ia64_dyn_sym_info array. */
108 1.1 christos unsigned int sorted_count;
109 1.1 christos /* The size of elfNN_ia64_dyn_sym_info array. */
110 1.1 christos unsigned int size;
111 1.1 christos /* The array of elfNN_ia64_dyn_sym_info. */
112 1.1 christos struct elfNN_ia64_dyn_sym_info *info;
113 1.1 christos
114 1.1 christos /* TRUE if this hash entry's addends was translated for
115 1.1 christos SHF_MERGE optimization. */
116 1.1 christos unsigned sec_merge_done : 1;
117 1.1 christos };
118 1.1 christos
119 1.1 christos struct elfNN_ia64_link_hash_entry
120 1.1 christos {
121 1.1 christos struct elf_link_hash_entry root;
122 1.1 christos /* The number of elements in elfNN_ia64_dyn_sym_info array. */
123 1.1 christos unsigned int count;
124 1.1 christos /* The number of sorted elements in elfNN_ia64_dyn_sym_info array. */
125 1.1 christos unsigned int sorted_count;
126 1.1 christos /* The size of elfNN_ia64_dyn_sym_info array. */
127 1.1 christos unsigned int size;
128 1.1 christos /* The array of elfNN_ia64_dyn_sym_info. */
129 1.1 christos struct elfNN_ia64_dyn_sym_info *info;
130 1.1 christos };
131 1.1 christos
132 1.1 christos struct elfNN_ia64_link_hash_table
133 1.1 christos {
134 1.1 christos /* The main hash table. */
135 1.1 christos struct elf_link_hash_table root;
136 1.1 christos
137 1.1 christos asection *fptr_sec; /* Function descriptor table (or NULL). */
138 1.1 christos asection *rel_fptr_sec; /* Dynamic relocation section for same. */
139 1.1 christos asection *pltoff_sec; /* Private descriptors for plt (or NULL). */
140 1.1 christos asection *rel_pltoff_sec; /* Dynamic relocation section for same. */
141 1.1 christos
142 1.1 christos bfd_size_type minplt_entries; /* Number of minplt entries. */
143 1.1 christos unsigned reltext : 1; /* Are there relocs against readonly sections? */
144 1.1 christos unsigned self_dtpmod_done : 1;/* Has self DTPMOD entry been finished? */
145 1.1 christos bfd_vma self_dtpmod_offset; /* .got offset to self DTPMOD entry. */
146 1.1 christos /* There are maybe R_IA64_GPREL22 relocations, including those
147 1.1 christos optimized from R_IA64_LTOFF22X, against non-SHF_IA_64_SHORT
148 1.1 christos sections. We need to record those sections so that we can choose
149 1.1 christos a proper GP to cover all R_IA64_GPREL22 relocations. */
150 1.1 christos asection *max_short_sec; /* Maximum short output section. */
151 1.1 christos bfd_vma max_short_offset; /* Maximum short offset. */
152 1.1 christos asection *min_short_sec; /* Minimum short output section. */
153 1.1 christos bfd_vma min_short_offset; /* Minimum short offset. */
154 1.1 christos
155 1.1 christos htab_t loc_hash_table;
156 1.1 christos void *loc_hash_memory;
157 1.1 christos };
158 1.1 christos
159 1.1 christos struct elfNN_ia64_allocate_data
160 1.1 christos {
161 1.1 christos struct bfd_link_info *info;
162 1.1 christos bfd_size_type ofs;
163 1.1 christos bfd_boolean only_got;
164 1.1 christos };
165 1.1 christos
166 1.1 christos #define elfNN_ia64_hash_table(p) \
167 1.1 christos (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
168 1.1 christos == IA64_ELF_DATA ? ((struct elfNN_ia64_link_hash_table *) ((p)->hash)) : NULL)
169 1.1 christos
170 1.1 christos static struct elfNN_ia64_dyn_sym_info * get_dyn_sym_info
171 1.1 christos (struct elfNN_ia64_link_hash_table *ia64_info,
172 1.1 christos struct elf_link_hash_entry *h,
173 1.1 christos bfd *abfd, const Elf_Internal_Rela *rel, bfd_boolean create);
174 1.1 christos static bfd_boolean elfNN_ia64_dynamic_symbol_p
175 1.1 christos (struct elf_link_hash_entry *h, struct bfd_link_info *info, int);
176 1.1 christos static bfd_boolean elfNN_ia64_choose_gp
177 1.1 christos (bfd *abfd, struct bfd_link_info *info, bfd_boolean final);
178 1.1 christos static void elfNN_ia64_dyn_sym_traverse
179 1.1 christos (struct elfNN_ia64_link_hash_table *ia64_info,
180 1.1 christos bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, void *),
181 1.1 christos void * info);
182 1.1 christos static bfd_boolean allocate_global_data_got
183 1.1 christos (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
184 1.1 christos static bfd_boolean allocate_global_fptr_got
185 1.1 christos (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
186 1.1 christos static bfd_boolean allocate_local_got
187 1.1 christos (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
188 1.1 christos static bfd_boolean elfNN_ia64_hpux_vec
189 1.1 christos (const bfd_target *vec);
190 1.1 christos static bfd_boolean allocate_dynrel_entries
191 1.1 christos (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
192 1.1 christos static asection *get_pltoff
193 1.1 christos (bfd *abfd, struct bfd_link_info *info,
194 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info);
195 1.1 christos
196 1.1 christos /* ia64-specific relocation. */
198 1.1 christos
199 1.1 christos /* Given a ELF reloc, return the matching HOWTO structure. */
200 1.1.1.5 christos
201 1.1 christos static bfd_boolean
202 1.1 christos elfNN_ia64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
203 1.1 christos arelent *bfd_reloc,
204 1.1 christos Elf_Internal_Rela *elf_reloc)
205 1.1.1.5 christos {
206 1.1.1.5 christos unsigned int r_type = ELF32_R_TYPE (elf_reloc->r_info);
207 1.1.1.5 christos
208 1.1.1.5 christos bfd_reloc->howto = ia64_elf_lookup_howto (r_type);
209 1.1.1.5 christos if (bfd_reloc->howto == NULL)
210 1.1.1.5 christos {
211 1.1.1.5 christos /* xgettext:c-format */
212 1.1.1.5 christos _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
213 1.1.1.5 christos abfd, r_type);
214 1.1.1.5 christos bfd_set_error (bfd_error_bad_value);
215 1.1.1.5 christos return FALSE;
216 1.1.1.5 christos }
217 1.1.1.5 christos
218 1.1 christos return TRUE;
219 1.1 christos }
220 1.1 christos
221 1.1 christos #define PLT_HEADER_SIZE (3 * 16)
223 1.1 christos #define PLT_MIN_ENTRY_SIZE (1 * 16)
224 1.1 christos #define PLT_FULL_ENTRY_SIZE (2 * 16)
225 1.1 christos #define PLT_RESERVED_WORDS 3
226 1.1 christos
227 1.1.1.4 christos static const bfd_byte plt_header[PLT_HEADER_SIZE] =
228 1.1.1.4 christos {
229 1.1.1.4 christos 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
230 1.1.1.4 christos 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
231 1.1.1.4 christos 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
232 1.1.1.4 christos 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
233 1.1.1.4 christos 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
234 1.1.1.4 christos 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
235 1.1.1.4 christos 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
236 1.1 christos 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
237 1.1 christos 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
238 1.1 christos };
239 1.1 christos
240 1.1.1.4 christos static const bfd_byte plt_min_entry[PLT_MIN_ENTRY_SIZE] =
241 1.1.1.4 christos {
242 1.1.1.4 christos 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
243 1.1 christos 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
244 1.1 christos 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
245 1.1 christos };
246 1.1 christos
247 1.1.1.4 christos static const bfd_byte plt_full_entry[PLT_FULL_ENTRY_SIZE] =
248 1.1.1.4 christos {
249 1.1.1.4 christos 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
250 1.1.1.4 christos 0x00, 0x41, 0x3c, 0x70, 0x29, 0xc0, /* ld8.acq r16=[r15],8*/
251 1.1.1.4 christos 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
252 1.1.1.4 christos 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
253 1.1 christos 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
254 1.1 christos 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
255 1.1 christos };
256 1.1 christos
257 1.1 christos #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
258 1.1 christos
259 1.1.1.4 christos static const bfd_byte oor_brl[16] =
260 1.1.1.4 christos {
261 1.1 christos 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
262 1.1 christos 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
263 1.1 christos 0x00, 0x00, 0x00, 0xc0
264 1.1 christos };
265 1.1 christos
266 1.1.1.4 christos static const bfd_byte oor_ip[48] =
267 1.1.1.4 christos {
268 1.1 christos 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
269 1.1.1.4 christos 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */
270 1.1.1.4 christos 0x01, 0x00, 0x00, 0x60,
271 1.1.1.4 christos 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */
272 1.1.1.4 christos 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */
273 1.1.1.4 christos 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */
274 1.1.1.4 christos 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */
275 1.1 christos 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
276 1.1 christos 0x60, 0x00, 0x80, 0x00 /* br b6;; */
277 1.1 christos };
278 1.1 christos
279 1.1 christos static size_t oor_branch_size = sizeof (oor_brl);
280 1.1 christos
281 1.1 christos void
282 1.1 christos bfd_elfNN_ia64_after_parse (int itanium)
283 1.1 christos {
284 1.1 christos oor_branch_size = itanium ? sizeof (oor_ip) : sizeof (oor_brl);
285 1.1 christos }
286 1.1 christos
287 1.1 christos
289 1.1 christos /* Rename some of the generic section flags to better document how they
290 1.1 christos are used here. */
291 1.1 christos #define skip_relax_pass_0 sec_flg0
292 1.1 christos #define skip_relax_pass_1 sec_flg1
293 1.1 christos
294 1.1 christos /* These functions do relaxation for IA-64 ELF. */
295 1.1 christos
296 1.1 christos static void
297 1.1 christos elfNN_ia64_update_short_info (asection *sec, bfd_vma offset,
298 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info)
299 1.1 christos {
300 1.1 christos /* Skip ABS and SHF_IA_64_SHORT sections. */
301 1.1 christos if (sec == bfd_abs_section_ptr
302 1.1 christos || (sec->flags & SEC_SMALL_DATA) != 0)
303 1.1 christos return;
304 1.1 christos
305 1.1 christos if (!ia64_info->min_short_sec)
306 1.1 christos {
307 1.1 christos ia64_info->max_short_sec = sec;
308 1.1 christos ia64_info->max_short_offset = offset;
309 1.1 christos ia64_info->min_short_sec = sec;
310 1.1 christos ia64_info->min_short_offset = offset;
311 1.1 christos }
312 1.1 christos else if (sec == ia64_info->max_short_sec
313 1.1 christos && offset > ia64_info->max_short_offset)
314 1.1 christos ia64_info->max_short_offset = offset;
315 1.1 christos else if (sec == ia64_info->min_short_sec
316 1.1 christos && offset < ia64_info->min_short_offset)
317 1.1 christos ia64_info->min_short_offset = offset;
318 1.1 christos else if (sec->output_section->vma
319 1.1 christos > ia64_info->max_short_sec->vma)
320 1.1 christos {
321 1.1 christos ia64_info->max_short_sec = sec;
322 1.1 christos ia64_info->max_short_offset = offset;
323 1.1 christos }
324 1.1 christos else if (sec->output_section->vma
325 1.1 christos < ia64_info->min_short_sec->vma)
326 1.1 christos {
327 1.1 christos ia64_info->min_short_sec = sec;
328 1.1 christos ia64_info->min_short_offset = offset;
329 1.1 christos }
330 1.1 christos }
331 1.1 christos
332 1.1 christos static bfd_boolean
333 1.1 christos elfNN_ia64_relax_section (bfd *abfd, asection *sec,
334 1.1 christos struct bfd_link_info *link_info,
335 1.1 christos bfd_boolean *again)
336 1.1 christos {
337 1.1 christos struct one_fixup
338 1.1 christos {
339 1.1 christos struct one_fixup *next;
340 1.1 christos asection *tsec;
341 1.1 christos bfd_vma toff;
342 1.1 christos bfd_vma trampoff;
343 1.1 christos };
344 1.1 christos
345 1.1 christos Elf_Internal_Shdr *symtab_hdr;
346 1.1 christos Elf_Internal_Rela *internal_relocs;
347 1.1 christos Elf_Internal_Rela *irel, *irelend;
348 1.1 christos bfd_byte *contents;
349 1.1 christos Elf_Internal_Sym *isymbuf = NULL;
350 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
351 1.1 christos struct one_fixup *fixups = NULL;
352 1.1 christos bfd_boolean changed_contents = FALSE;
353 1.1 christos bfd_boolean changed_relocs = FALSE;
354 1.1 christos bfd_boolean changed_got = FALSE;
355 1.1 christos bfd_boolean skip_relax_pass_0 = TRUE;
356 1.1 christos bfd_boolean skip_relax_pass_1 = TRUE;
357 1.1 christos bfd_vma gp = 0;
358 1.1 christos
359 1.1 christos /* Assume we're not going to change any sizes, and we'll only need
360 1.1.1.2 christos one pass. */
361 1.1 christos *again = FALSE;
362 1.1 christos
363 1.1 christos if (bfd_link_relocatable (link_info))
364 1.1 christos (*link_info->callbacks->einfo)
365 1.1 christos (_("%P%F: --relax and -r may not be used together\n"));
366 1.1 christos
367 1.1 christos /* Don't even try to relax for non-ELF outputs. */
368 1.1 christos if (!is_elf_hash_table (link_info->hash))
369 1.1 christos return FALSE;
370 1.1 christos
371 1.1 christos /* Nothing to do if there are no relocations or there is no need for
372 1.1 christos the current pass. */
373 1.1 christos if ((sec->flags & SEC_RELOC) == 0
374 1.1 christos || sec->reloc_count == 0
375 1.1 christos || (link_info->relax_pass == 0 && sec->skip_relax_pass_0)
376 1.1 christos || (link_info->relax_pass == 1 && sec->skip_relax_pass_1))
377 1.1 christos return TRUE;
378 1.1 christos
379 1.1 christos ia64_info = elfNN_ia64_hash_table (link_info);
380 1.1 christos if (ia64_info == NULL)
381 1.1 christos return FALSE;
382 1.1 christos
383 1.1 christos symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
384 1.1 christos
385 1.1 christos /* Load the relocations for this section. */
386 1.1 christos internal_relocs = (_bfd_elf_link_read_relocs
387 1.1 christos (abfd, sec, NULL, (Elf_Internal_Rela *) NULL,
388 1.1 christos link_info->keep_memory));
389 1.1 christos if (internal_relocs == NULL)
390 1.1 christos return FALSE;
391 1.1 christos
392 1.1 christos irelend = internal_relocs + sec->reloc_count;
393 1.1 christos
394 1.1 christos /* Get the section contents. */
395 1.1 christos if (elf_section_data (sec)->this_hdr.contents != NULL)
396 1.1 christos contents = elf_section_data (sec)->this_hdr.contents;
397 1.1 christos else
398 1.1 christos {
399 1.1 christos if (!bfd_malloc_and_get_section (abfd, sec, &contents))
400 1.1 christos goto error_return;
401 1.1 christos }
402 1.1 christos
403 1.1 christos for (irel = internal_relocs; irel < irelend; irel++)
404 1.1 christos {
405 1.1 christos unsigned long r_type = ELFNN_R_TYPE (irel->r_info);
406 1.1 christos bfd_vma symaddr, reladdr, trampoff, toff, roff;
407 1.1 christos asection *tsec;
408 1.1 christos struct one_fixup *f;
409 1.1 christos bfd_size_type amt;
410 1.1 christos bfd_boolean is_branch;
411 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
412 1.1 christos char symtype;
413 1.1 christos
414 1.1 christos switch (r_type)
415 1.1 christos {
416 1.1 christos case R_IA64_PCREL21B:
417 1.1 christos case R_IA64_PCREL21BI:
418 1.1 christos case R_IA64_PCREL21M:
419 1.1 christos case R_IA64_PCREL21F:
420 1.1 christos /* In pass 1, all br relaxations are done. We can skip it. */
421 1.1 christos if (link_info->relax_pass == 1)
422 1.1 christos continue;
423 1.1 christos skip_relax_pass_0 = FALSE;
424 1.1 christos is_branch = TRUE;
425 1.1 christos break;
426 1.1 christos
427 1.1 christos case R_IA64_PCREL60B:
428 1.1 christos /* We can't optimize brl to br in pass 0 since br relaxations
429 1.1 christos will increase the code size. Defer it to pass 1. */
430 1.1 christos if (link_info->relax_pass == 0)
431 1.1 christos {
432 1.1 christos skip_relax_pass_1 = FALSE;
433 1.1 christos continue;
434 1.1 christos }
435 1.1 christos is_branch = TRUE;
436 1.1 christos break;
437 1.1 christos
438 1.1 christos case R_IA64_GPREL22:
439 1.1 christos /* Update max_short_sec/min_short_sec. */
440 1.1 christos
441 1.1 christos case R_IA64_LTOFF22X:
442 1.1 christos case R_IA64_LDXMOV:
443 1.1 christos /* We can't relax ldx/mov in pass 0 since br relaxations will
444 1.1 christos increase the code size. Defer it to pass 1. */
445 1.1 christos if (link_info->relax_pass == 0)
446 1.1 christos {
447 1.1 christos skip_relax_pass_1 = FALSE;
448 1.1 christos continue;
449 1.1 christos }
450 1.1 christos is_branch = FALSE;
451 1.1 christos break;
452 1.1 christos
453 1.1 christos default:
454 1.1 christos continue;
455 1.1 christos }
456 1.1 christos
457 1.1 christos /* Get the value of the symbol referred to by the reloc. */
458 1.1 christos if (ELFNN_R_SYM (irel->r_info) < symtab_hdr->sh_info)
459 1.1 christos {
460 1.1 christos /* A local symbol. */
461 1.1 christos Elf_Internal_Sym *isym;
462 1.1 christos
463 1.1 christos /* Read this BFD's local symbols. */
464 1.1 christos if (isymbuf == NULL)
465 1.1 christos {
466 1.1 christos isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
467 1.1 christos if (isymbuf == NULL)
468 1.1 christos isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
469 1.1 christos symtab_hdr->sh_info, 0,
470 1.1 christos NULL, NULL, NULL);
471 1.1 christos if (isymbuf == 0)
472 1.1 christos goto error_return;
473 1.1 christos }
474 1.1 christos
475 1.1 christos isym = isymbuf + ELFNN_R_SYM (irel->r_info);
476 1.1 christos if (isym->st_shndx == SHN_UNDEF)
477 1.1 christos continue; /* We can't do anything with undefined symbols. */
478 1.1 christos else if (isym->st_shndx == SHN_ABS)
479 1.1 christos tsec = bfd_abs_section_ptr;
480 1.1 christos else if (isym->st_shndx == SHN_COMMON)
481 1.1 christos tsec = bfd_com_section_ptr;
482 1.1 christos else if (isym->st_shndx == SHN_IA_64_ANSI_COMMON)
483 1.1 christos tsec = bfd_com_section_ptr;
484 1.1 christos else
485 1.1 christos tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
486 1.1 christos
487 1.1 christos toff = isym->st_value;
488 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, NULL, abfd, irel, FALSE);
489 1.1 christos symtype = ELF_ST_TYPE (isym->st_info);
490 1.1 christos }
491 1.1 christos else
492 1.1 christos {
493 1.1 christos unsigned long indx;
494 1.1 christos struct elf_link_hash_entry *h;
495 1.1 christos
496 1.1 christos indx = ELFNN_R_SYM (irel->r_info) - symtab_hdr->sh_info;
497 1.1 christos h = elf_sym_hashes (abfd)[indx];
498 1.1 christos BFD_ASSERT (h != NULL);
499 1.1 christos
500 1.1 christos while (h->root.type == bfd_link_hash_indirect
501 1.1 christos || h->root.type == bfd_link_hash_warning)
502 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
503 1.1 christos
504 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, abfd, irel, FALSE);
505 1.1 christos
506 1.1 christos /* For branches to dynamic symbols, we're interested instead
507 1.1 christos in a branch to the PLT entry. */
508 1.1 christos if (is_branch && dyn_i && dyn_i->want_plt2)
509 1.1 christos {
510 1.1 christos /* Internal branches shouldn't be sent to the PLT.
511 1.1 christos Leave this for now and we'll give an error later. */
512 1.1 christos if (r_type != R_IA64_PCREL21B)
513 1.1 christos continue;
514 1.1 christos
515 1.1 christos tsec = ia64_info->root.splt;
516 1.1 christos toff = dyn_i->plt2_offset;
517 1.1 christos BFD_ASSERT (irel->r_addend == 0);
518 1.1 christos }
519 1.1 christos
520 1.1 christos /* Can't do anything else with dynamic symbols. */
521 1.1 christos else if (elfNN_ia64_dynamic_symbol_p (h, link_info, r_type))
522 1.1 christos continue;
523 1.1 christos
524 1.1 christos else
525 1.1 christos {
526 1.1 christos /* We can't do anything with undefined symbols. */
527 1.1 christos if (h->root.type == bfd_link_hash_undefined
528 1.1 christos || h->root.type == bfd_link_hash_undefweak)
529 1.1 christos continue;
530 1.1 christos
531 1.1 christos tsec = h->root.u.def.section;
532 1.1 christos toff = h->root.u.def.value;
533 1.1 christos }
534 1.1 christos
535 1.1 christos symtype = h->type;
536 1.1 christos }
537 1.1 christos
538 1.1 christos if (tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
539 1.1 christos {
540 1.1 christos /* At this stage in linking, no SEC_MERGE symbol has been
541 1.1 christos adjusted, so all references to such symbols need to be
542 1.1 christos passed through _bfd_merged_section_offset. (Later, in
543 1.1 christos relocate_section, all SEC_MERGE symbols *except* for
544 1.1 christos section symbols have been adjusted.)
545 1.1 christos
546 1.1 christos gas may reduce relocations against symbols in SEC_MERGE
547 1.1 christos sections to a relocation against the section symbol when
548 1.1 christos the original addend was zero. When the reloc is against
549 1.1 christos a section symbol we should include the addend in the
550 1.1 christos offset passed to _bfd_merged_section_offset, since the
551 1.1 christos location of interest is the original symbol. On the
552 1.1 christos other hand, an access to "sym+addend" where "sym" is not
553 1.1 christos a section symbol should not include the addend; Such an
554 1.1 christos access is presumed to be an offset from "sym"; The
555 1.1 christos location of interest is just "sym". */
556 1.1 christos if (symtype == STT_SECTION)
557 1.1 christos toff += irel->r_addend;
558 1.1 christos
559 1.1 christos toff = _bfd_merged_section_offset (abfd, &tsec,
560 1.1 christos elf_section_data (tsec)->sec_info,
561 1.1 christos toff);
562 1.1 christos
563 1.1 christos if (symtype != STT_SECTION)
564 1.1 christos toff += irel->r_addend;
565 1.1 christos }
566 1.1 christos else
567 1.1 christos toff += irel->r_addend;
568 1.1 christos
569 1.1 christos symaddr = tsec->output_section->vma + tsec->output_offset + toff;
570 1.1 christos
571 1.1 christos roff = irel->r_offset;
572 1.1 christos
573 1.1 christos if (is_branch)
574 1.1 christos {
575 1.1 christos bfd_signed_vma offset;
576 1.1 christos
577 1.1 christos reladdr = (sec->output_section->vma
578 1.1 christos + sec->output_offset
579 1.1 christos + roff) & (bfd_vma) -4;
580 1.1 christos
581 1.1 christos /* The .plt section is aligned at 32byte and the .text section
582 1.1 christos is aligned at 64byte. The .text section is right after the
583 1.1.1.2 christos .plt section. After the first relaxation pass, linker may
584 1.1 christos increase the gap between the .plt and .text sections up
585 1.1 christos to 32byte. We assume linker will always insert 32byte
586 1.1 christos between the .plt and .text sections after the first
587 1.1 christos relaxation pass. */
588 1.1 christos if (tsec == ia64_info->root.splt)
589 1.1 christos offset = -0x1000000 + 32;
590 1.1 christos else
591 1.1 christos offset = -0x1000000;
592 1.1 christos
593 1.1 christos /* If the branch is in range, no need to do anything. */
594 1.1 christos if ((bfd_signed_vma) (symaddr - reladdr) >= offset
595 1.1 christos && (bfd_signed_vma) (symaddr - reladdr) <= 0x0FFFFF0)
596 1.1 christos {
597 1.1 christos /* If the 60-bit branch is in 21-bit range, optimize it. */
598 1.1 christos if (r_type == R_IA64_PCREL60B)
599 1.1 christos {
600 1.1 christos ia64_elf_relax_brl (contents, roff);
601 1.1 christos
602 1.1 christos irel->r_info
603 1.1 christos = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
604 1.1 christos R_IA64_PCREL21B);
605 1.1 christos
606 1.1 christos /* If the original relocation offset points to slot
607 1.1.1.5 christos 1, change it to slot 2. */
608 1.1.1.5 christos if ((irel->r_offset & 3) == 1)
609 1.1.1.5 christos irel->r_offset += 1;
610 1.1 christos
611 1.1 christos changed_contents = TRUE;
612 1.1 christos changed_relocs = TRUE;
613 1.1 christos }
614 1.1 christos
615 1.1 christos continue;
616 1.1 christos }
617 1.1 christos else if (r_type == R_IA64_PCREL60B)
618 1.1 christos continue;
619 1.1 christos else if (ia64_elf_relax_br (contents, roff))
620 1.1 christos {
621 1.1 christos irel->r_info
622 1.1 christos = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
623 1.1 christos R_IA64_PCREL60B);
624 1.1.1.5 christos
625 1.1.1.5 christos /* Make the relocation offset point to slot 1. */
626 1.1.1.5 christos irel->r_offset = (irel->r_offset & ~((bfd_vma) 0x3)) + 1;
627 1.1 christos
628 1.1 christos changed_contents = TRUE;
629 1.1 christos changed_relocs = TRUE;
630 1.1 christos continue;
631 1.1 christos }
632 1.1 christos
633 1.1 christos /* We can't put a trampoline in a .init/.fini section. Issue
634 1.1 christos an error. */
635 1.1.1.4 christos if (strcmp (sec->output_section->name, ".init") == 0
636 1.1.1.4 christos || strcmp (sec->output_section->name, ".fini") == 0)
637 1.1.1.5 christos {
638 1.1.1.5 christos _bfd_error_handler
639 1.1.1.5 christos /* xgettext:c-format */
640 1.1 christos (_("%pB: can't relax br at %#" PRIx64 " in section `%pA';"
641 1.1 christos " please use brl or indirect branch"),
642 1.1 christos sec->owner, (uint64_t) roff, sec);
643 1.1 christos bfd_set_error (bfd_error_bad_value);
644 1.1 christos goto error_return;
645 1.1 christos }
646 1.1 christos
647 1.1 christos /* If the branch and target are in the same section, you've
648 1.1 christos got one honking big section and we can't help you unless
649 1.1 christos you are branching backwards. You'll get an error message
650 1.1 christos later. */
651 1.1 christos if (tsec == sec && toff > roff)
652 1.1 christos continue;
653 1.1 christos
654 1.1 christos /* Look for an existing fixup to this address. */
655 1.1 christos for (f = fixups; f ; f = f->next)
656 1.1 christos if (f->tsec == tsec && f->toff == toff)
657 1.1 christos break;
658 1.1 christos
659 1.1 christos if (f == NULL)
660 1.1 christos {
661 1.1 christos /* Two alternatives: If it's a branch to a PLT entry, we can
662 1.1 christos make a copy of the FULL_PLT entry. Otherwise, we'll have
663 1.1 christos to use a `brl' insn to get where we're going. */
664 1.1 christos
665 1.1 christos size_t size;
666 1.1 christos
667 1.1 christos if (tsec == ia64_info->root.splt)
668 1.1 christos size = sizeof (plt_full_entry);
669 1.1 christos else
670 1.1 christos size = oor_branch_size;
671 1.1 christos
672 1.1 christos /* Resize the current section to make room for the new branch. */
673 1.1 christos trampoff = (sec->size + 15) & (bfd_vma) -16;
674 1.1 christos
675 1.1 christos /* If trampoline is out of range, there is nothing we
676 1.1 christos can do. */
677 1.1 christos offset = trampoff - (roff & (bfd_vma) -4);
678 1.1 christos if (offset < -0x1000000 || offset > 0x0FFFFF0)
679 1.1 christos continue;
680 1.1 christos
681 1.1 christos amt = trampoff + size;
682 1.1 christos contents = (bfd_byte *) bfd_realloc (contents, amt);
683 1.1 christos if (contents == NULL)
684 1.1 christos goto error_return;
685 1.1 christos sec->size = amt;
686 1.1 christos
687 1.1 christos if (tsec == ia64_info->root.splt)
688 1.1 christos {
689 1.1 christos memcpy (contents + trampoff, plt_full_entry, size);
690 1.1 christos
691 1.1 christos /* Hijack the old relocation for use as the PLTOFF reloc. */
692 1.1 christos irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
693 1.1 christos R_IA64_PLTOFF22);
694 1.1 christos irel->r_offset = trampoff;
695 1.1 christos }
696 1.1 christos else
697 1.1 christos {
698 1.1 christos if (size == sizeof (oor_ip))
699 1.1 christos {
700 1.1 christos memcpy (contents + trampoff, oor_ip, size);
701 1.1 christos irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
702 1.1 christos R_IA64_PCREL64I);
703 1.1 christos irel->r_addend -= 16;
704 1.1 christos irel->r_offset = trampoff + 2;
705 1.1 christos }
706 1.1 christos else
707 1.1 christos {
708 1.1 christos memcpy (contents + trampoff, oor_brl, size);
709 1.1 christos irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
710 1.1 christos R_IA64_PCREL60B);
711 1.1 christos irel->r_offset = trampoff + 2;
712 1.1 christos }
713 1.1 christos
714 1.1 christos }
715 1.1 christos
716 1.1 christos /* Record the fixup so we don't do it again this section. */
717 1.1 christos f = (struct one_fixup *)
718 1.1 christos bfd_malloc ((bfd_size_type) sizeof (*f));
719 1.1 christos f->next = fixups;
720 1.1 christos f->tsec = tsec;
721 1.1 christos f->toff = toff;
722 1.1 christos f->trampoff = trampoff;
723 1.1 christos fixups = f;
724 1.1 christos }
725 1.1 christos else
726 1.1 christos {
727 1.1 christos /* If trampoline is out of range, there is nothing we
728 1.1 christos can do. */
729 1.1 christos offset = f->trampoff - (roff & (bfd_vma) -4);
730 1.1 christos if (offset < -0x1000000 || offset > 0x0FFFFF0)
731 1.1 christos continue;
732 1.1 christos
733 1.1 christos /* Nop out the reloc, since we're finalizing things here. */
734 1.1 christos irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
735 1.1 christos }
736 1.1 christos
737 1.1 christos /* Fix up the existing branch to hit the trampoline. */
738 1.1 christos if (ia64_elf_install_value (contents + roff, offset, r_type)
739 1.1 christos != bfd_reloc_ok)
740 1.1 christos goto error_return;
741 1.1 christos
742 1.1 christos changed_contents = TRUE;
743 1.1 christos changed_relocs = TRUE;
744 1.1 christos }
745 1.1 christos else
746 1.1 christos {
747 1.1 christos /* Fetch the gp. */
748 1.1 christos if (gp == 0)
749 1.1 christos {
750 1.1 christos bfd *obfd = sec->output_section->owner;
751 1.1 christos gp = _bfd_get_gp_value (obfd);
752 1.1 christos if (gp == 0)
753 1.1 christos {
754 1.1 christos if (!elfNN_ia64_choose_gp (obfd, link_info, FALSE))
755 1.1 christos goto error_return;
756 1.1 christos gp = _bfd_get_gp_value (obfd);
757 1.1 christos }
758 1.1 christos }
759 1.1 christos
760 1.1 christos /* If the data is out of range, do nothing. */
761 1.1 christos if ((bfd_signed_vma) (symaddr - gp) >= 0x200000
762 1.1 christos ||(bfd_signed_vma) (symaddr - gp) < -0x200000)
763 1.1 christos continue;
764 1.1 christos
765 1.1 christos if (r_type == R_IA64_GPREL22)
766 1.1 christos elfNN_ia64_update_short_info (tsec->output_section,
767 1.1 christos tsec->output_offset + toff,
768 1.1 christos ia64_info);
769 1.1 christos else if (r_type == R_IA64_LTOFF22X)
770 1.1 christos {
771 1.1 christos irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
772 1.1 christos R_IA64_GPREL22);
773 1.1 christos changed_relocs = TRUE;
774 1.1 christos if (dyn_i->want_gotx)
775 1.1 christos {
776 1.1 christos dyn_i->want_gotx = 0;
777 1.1 christos changed_got |= !dyn_i->want_got;
778 1.1 christos }
779 1.1 christos
780 1.1 christos elfNN_ia64_update_short_info (tsec->output_section,
781 1.1 christos tsec->output_offset + toff,
782 1.1 christos ia64_info);
783 1.1 christos }
784 1.1 christos else
785 1.1 christos {
786 1.1 christos ia64_elf_relax_ldxmov (contents, roff);
787 1.1 christos irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
788 1.1 christos changed_contents = TRUE;
789 1.1 christos changed_relocs = TRUE;
790 1.1 christos }
791 1.1 christos }
792 1.1 christos }
793 1.1 christos
794 1.1 christos /* ??? If we created fixups, this may push the code segment large
795 1.1 christos enough that the data segment moves, which will change the GP.
796 1.1 christos Reset the GP so that we re-calculate next round. We need to
797 1.1 christos do this at the _beginning_ of the next round; now will not do. */
798 1.1 christos
799 1.1 christos /* Clean up and go home. */
800 1.1 christos while (fixups)
801 1.1 christos {
802 1.1 christos struct one_fixup *f = fixups;
803 1.1 christos fixups = fixups->next;
804 1.1 christos free (f);
805 1.1 christos }
806 1.1 christos
807 1.1 christos if (isymbuf != NULL
808 1.1 christos && symtab_hdr->contents != (unsigned char *) isymbuf)
809 1.1 christos {
810 1.1 christos if (! link_info->keep_memory)
811 1.1 christos free (isymbuf);
812 1.1 christos else
813 1.1 christos {
814 1.1 christos /* Cache the symbols for elf_link_input_bfd. */
815 1.1 christos symtab_hdr->contents = (unsigned char *) isymbuf;
816 1.1 christos }
817 1.1 christos }
818 1.1 christos
819 1.1 christos if (contents != NULL
820 1.1 christos && elf_section_data (sec)->this_hdr.contents != contents)
821 1.1 christos {
822 1.1 christos if (!changed_contents && !link_info->keep_memory)
823 1.1 christos free (contents);
824 1.1 christos else
825 1.1 christos {
826 1.1 christos /* Cache the section contents for elf_link_input_bfd. */
827 1.1 christos elf_section_data (sec)->this_hdr.contents = contents;
828 1.1 christos }
829 1.1 christos }
830 1.1 christos
831 1.1 christos if (elf_section_data (sec)->relocs != internal_relocs)
832 1.1 christos {
833 1.1 christos if (!changed_relocs)
834 1.1 christos free (internal_relocs);
835 1.1 christos else
836 1.1 christos elf_section_data (sec)->relocs = internal_relocs;
837 1.1 christos }
838 1.1 christos
839 1.1 christos if (changed_got)
840 1.1 christos {
841 1.1 christos struct elfNN_ia64_allocate_data data;
842 1.1 christos data.info = link_info;
843 1.1 christos data.ofs = 0;
844 1.1 christos ia64_info->self_dtpmod_offset = (bfd_vma) -1;
845 1.1 christos
846 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
847 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
848 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
849 1.1 christos ia64_info->root.sgot->size = data.ofs;
850 1.1 christos
851 1.1 christos if (ia64_info->root.dynamic_sections_created
852 1.1 christos && ia64_info->root.srelgot != NULL)
853 1.1.1.2 christos {
854 1.1 christos /* Resize .rela.got. */
855 1.1 christos ia64_info->root.srelgot->size = 0;
856 1.1 christos if (bfd_link_pic (link_info)
857 1.1 christos && ia64_info->self_dtpmod_offset != (bfd_vma) -1)
858 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
859 1.1 christos data.only_got = TRUE;
860 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries,
861 1.1 christos &data);
862 1.1 christos }
863 1.1 christos }
864 1.1 christos
865 1.1 christos if (link_info->relax_pass == 0)
866 1.1 christos {
867 1.1 christos /* Pass 0 is only needed to relax br. */
868 1.1 christos sec->skip_relax_pass_0 = skip_relax_pass_0;
869 1.1 christos sec->skip_relax_pass_1 = skip_relax_pass_1;
870 1.1 christos }
871 1.1 christos
872 1.1 christos *again = changed_contents || changed_relocs;
873 1.1 christos return TRUE;
874 1.1 christos
875 1.1 christos error_return:
876 1.1 christos if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
877 1.1 christos free (isymbuf);
878 1.1 christos if (contents != NULL
879 1.1 christos && elf_section_data (sec)->this_hdr.contents != contents)
880 1.1 christos free (contents);
881 1.1 christos if (internal_relocs != NULL
882 1.1 christos && elf_section_data (sec)->relocs != internal_relocs)
883 1.1 christos free (internal_relocs);
884 1.1 christos return FALSE;
885 1.1 christos }
886 1.1 christos #undef skip_relax_pass_0
887 1.1 christos #undef skip_relax_pass_1
888 1.1 christos
889 1.1 christos /* Return TRUE if NAME is an unwind table section name. */
891 1.1 christos
892 1.1 christos static inline bfd_boolean
893 1.1 christos is_unwind_section_name (bfd *abfd, const char *name)
894 1.1 christos {
895 1.1 christos if (elfNN_ia64_hpux_vec (abfd->xvec)
896 1.1 christos && !strcmp (name, ELF_STRING_ia64_unwind_hdr))
897 1.1 christos return FALSE;
898 1.1 christos
899 1.1 christos return ((CONST_STRNEQ (name, ELF_STRING_ia64_unwind)
900 1.1 christos && ! CONST_STRNEQ (name, ELF_STRING_ia64_unwind_info))
901 1.1 christos || CONST_STRNEQ (name, ELF_STRING_ia64_unwind_once));
902 1.1 christos }
903 1.1 christos
904 1.1 christos /* Handle an IA-64 specific section when reading an object file. This
905 1.1 christos is called when bfd_section_from_shdr finds a section with an unknown
906 1.1 christos type. */
907 1.1 christos
908 1.1 christos static bfd_boolean
909 1.1 christos elfNN_ia64_section_from_shdr (bfd *abfd,
910 1.1 christos Elf_Internal_Shdr *hdr,
911 1.1 christos const char *name,
912 1.1 christos int shindex)
913 1.1 christos {
914 1.1 christos /* There ought to be a place to keep ELF backend specific flags, but
915 1.1 christos at the moment there isn't one. We just keep track of the
916 1.1 christos sections by their name, instead. Fortunately, the ABI gives
917 1.1 christos suggested names for all the MIPS specific sections, so we will
918 1.1 christos probably get away with this. */
919 1.1 christos switch (hdr->sh_type)
920 1.1 christos {
921 1.1 christos case SHT_IA_64_UNWIND:
922 1.1 christos case SHT_IA_64_HP_OPT_ANOT:
923 1.1 christos break;
924 1.1 christos
925 1.1 christos case SHT_IA_64_EXT:
926 1.1 christos if (strcmp (name, ELF_STRING_ia64_archext) != 0)
927 1.1 christos return FALSE;
928 1.1 christos break;
929 1.1 christos
930 1.1 christos default:
931 1.1 christos return FALSE;
932 1.1 christos }
933 1.1 christos
934 1.1 christos if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
935 1.1 christos return FALSE;
936 1.1 christos
937 1.1 christos return TRUE;
938 1.1 christos }
939 1.1 christos
940 1.1 christos /* Convert IA-64 specific section flags to bfd internal section flags. */
941 1.1 christos
942 1.1 christos /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
943 1.1 christos flag. */
944 1.1 christos
945 1.1 christos static bfd_boolean
946 1.1 christos elfNN_ia64_section_flags (flagword *flags,
947 1.1 christos const Elf_Internal_Shdr *hdr)
948 1.1 christos {
949 1.1 christos if (hdr->sh_flags & SHF_IA_64_SHORT)
950 1.1 christos *flags |= SEC_SMALL_DATA;
951 1.1 christos
952 1.1 christos return TRUE;
953 1.1 christos }
954 1.1 christos
955 1.1 christos /* Set the correct type for an IA-64 ELF section. We do this by the
956 1.1 christos section name, which is a hack, but ought to work. */
957 1.1 christos
958 1.1 christos static bfd_boolean
959 1.1 christos elfNN_ia64_fake_sections (bfd *abfd, Elf_Internal_Shdr *hdr,
960 1.1 christos asection *sec)
961 1.1 christos {
962 1.1 christos const char *name;
963 1.1 christos
964 1.1 christos name = bfd_get_section_name (abfd, sec);
965 1.1 christos
966 1.1 christos if (is_unwind_section_name (abfd, name))
967 1.1 christos {
968 1.1 christos /* We don't have the sections numbered at this point, so sh_info
969 1.1 christos is set later, in elfNN_ia64_final_write_processing. */
970 1.1 christos hdr->sh_type = SHT_IA_64_UNWIND;
971 1.1 christos hdr->sh_flags |= SHF_LINK_ORDER;
972 1.1 christos }
973 1.1 christos else if (strcmp (name, ELF_STRING_ia64_archext) == 0)
974 1.1 christos hdr->sh_type = SHT_IA_64_EXT;
975 1.1 christos else if (strcmp (name, ".HP.opt_annot") == 0)
976 1.1 christos hdr->sh_type = SHT_IA_64_HP_OPT_ANOT;
977 1.1 christos else if (strcmp (name, ".reloc") == 0)
978 1.1 christos /* This is an ugly, but unfortunately necessary hack that is
979 1.1 christos needed when producing EFI binaries on IA-64. It tells
980 1.1 christos elf.c:elf_fake_sections() not to consider ".reloc" as a section
981 1.1 christos containing ELF relocation info. We need this hack in order to
982 1.1 christos be able to generate ELF binaries that can be translated into
983 1.1 christos EFI applications (which are essentially COFF objects). Those
984 1.1 christos files contain a COFF ".reloc" section inside an ELFNN object,
985 1.1 christos which would normally cause BFD to segfault because it would
986 1.1 christos attempt to interpret this section as containing relocation
987 1.1 christos entries for section "oc". With this hack enabled, ".reloc"
988 1.1 christos will be treated as a normal data section, which will avoid the
989 1.1 christos segfault. However, you won't be able to create an ELFNN binary
990 1.1 christos with a section named "oc" that needs relocations, but that's
991 1.1 christos the kind of ugly side-effects you get when detecting section
992 1.1 christos types based on their names... In practice, this limitation is
993 1.1 christos unlikely to bite. */
994 1.1 christos hdr->sh_type = SHT_PROGBITS;
995 1.1 christos
996 1.1 christos if (sec->flags & SEC_SMALL_DATA)
997 1.1 christos hdr->sh_flags |= SHF_IA_64_SHORT;
998 1.1 christos
999 1.1 christos /* Some HP linkers look for the SHF_IA_64_HP_TLS flag instead of SHF_TLS. */
1000 1.1 christos
1001 1.1 christos if (elfNN_ia64_hpux_vec (abfd->xvec) && (sec->flags & SHF_TLS))
1002 1.1 christos hdr->sh_flags |= SHF_IA_64_HP_TLS;
1003 1.1 christos
1004 1.1 christos return TRUE;
1005 1.1 christos }
1006 1.1 christos
1007 1.1 christos /* The final processing done just before writing out an IA-64 ELF
1008 1.1 christos object file. */
1009 1.1 christos
1010 1.1 christos static void
1011 1.1 christos elfNN_ia64_final_write_processing (bfd *abfd,
1012 1.1 christos bfd_boolean linker ATTRIBUTE_UNUSED)
1013 1.1 christos {
1014 1.1 christos Elf_Internal_Shdr *hdr;
1015 1.1 christos asection *s;
1016 1.1 christos
1017 1.1 christos for (s = abfd->sections; s; s = s->next)
1018 1.1 christos {
1019 1.1 christos hdr = &elf_section_data (s)->this_hdr;
1020 1.1 christos switch (hdr->sh_type)
1021 1.1 christos {
1022 1.1 christos case SHT_IA_64_UNWIND:
1023 1.1 christos /* The IA-64 processor-specific ABI requires setting sh_link
1024 1.1 christos to the unwind section, whereas HP-UX requires sh_info to
1025 1.1 christos do so. For maximum compatibility, we'll set both for
1026 1.1 christos now... */
1027 1.1 christos hdr->sh_info = hdr->sh_link;
1028 1.1 christos break;
1029 1.1 christos }
1030 1.1 christos }
1031 1.1 christos
1032 1.1 christos if (! elf_flags_init (abfd))
1033 1.1 christos {
1034 1.1 christos unsigned long flags = 0;
1035 1.1 christos
1036 1.1 christos if (abfd->xvec->byteorder == BFD_ENDIAN_BIG)
1037 1.1 christos flags |= EF_IA_64_BE;
1038 1.1 christos if (bfd_get_mach (abfd) == bfd_mach_ia64_elf64)
1039 1.1 christos flags |= EF_IA_64_ABI64;
1040 1.1 christos
1041 1.1 christos elf_elfheader(abfd)->e_flags = flags;
1042 1.1 christos elf_flags_init (abfd) = TRUE;
1043 1.1 christos }
1044 1.1 christos }
1045 1.1 christos
1046 1.1 christos /* Hook called by the linker routine which adds symbols from an object
1047 1.1 christos file. We use it to put .comm items in .sbss, and not .bss. */
1048 1.1 christos
1049 1.1 christos static bfd_boolean
1050 1.1 christos elfNN_ia64_add_symbol_hook (bfd *abfd,
1051 1.1 christos struct bfd_link_info *info,
1052 1.1 christos Elf_Internal_Sym *sym,
1053 1.1 christos const char **namep ATTRIBUTE_UNUSED,
1054 1.1 christos flagword *flagsp ATTRIBUTE_UNUSED,
1055 1.1.1.2 christos asection **secp,
1056 1.1 christos bfd_vma *valp)
1057 1.1 christos {
1058 1.1 christos if (sym->st_shndx == SHN_COMMON
1059 1.1 christos && !bfd_link_relocatable (info)
1060 1.1 christos && sym->st_size <= elf_gp_size (abfd))
1061 1.1 christos {
1062 1.1 christos /* Common symbols less than or equal to -G nn bytes are
1063 1.1 christos automatically put into .sbss. */
1064 1.1 christos
1065 1.1 christos asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
1066 1.1 christos
1067 1.1 christos if (scomm == NULL)
1068 1.1 christos {
1069 1.1 christos scomm = bfd_make_section_with_flags (abfd, ".scommon",
1070 1.1 christos (SEC_ALLOC
1071 1.1 christos | SEC_IS_COMMON
1072 1.1 christos | SEC_LINKER_CREATED));
1073 1.1 christos if (scomm == NULL)
1074 1.1 christos return FALSE;
1075 1.1 christos }
1076 1.1 christos
1077 1.1 christos *secp = scomm;
1078 1.1 christos *valp = sym->st_size;
1079 1.1 christos }
1080 1.1 christos
1081 1.1 christos return TRUE;
1082 1.1 christos }
1083 1.1 christos
1084 1.1 christos /* Return the number of additional phdrs we will need. */
1085 1.1 christos
1086 1.1 christos static int
1087 1.1 christos elfNN_ia64_additional_program_headers (bfd *abfd,
1088 1.1 christos struct bfd_link_info *info ATTRIBUTE_UNUSED)
1089 1.1 christos {
1090 1.1 christos asection *s;
1091 1.1 christos int ret = 0;
1092 1.1 christos
1093 1.1 christos /* See if we need a PT_IA_64_ARCHEXT segment. */
1094 1.1 christos s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext);
1095 1.1 christos if (s && (s->flags & SEC_LOAD))
1096 1.1 christos ++ret;
1097 1.1 christos
1098 1.1 christos /* Count how many PT_IA_64_UNWIND segments we need. */
1099 1.1 christos for (s = abfd->sections; s; s = s->next)
1100 1.1 christos if (is_unwind_section_name (abfd, s->name) && (s->flags & SEC_LOAD))
1101 1.1 christos ++ret;
1102 1.1 christos
1103 1.1 christos return ret;
1104 1.1 christos }
1105 1.1 christos
1106 1.1 christos static bfd_boolean
1107 1.1 christos elfNN_ia64_modify_segment_map (bfd *abfd,
1108 1.1 christos struct bfd_link_info *info ATTRIBUTE_UNUSED)
1109 1.1 christos {
1110 1.1 christos struct elf_segment_map *m, **pm;
1111 1.1 christos Elf_Internal_Shdr *hdr;
1112 1.1 christos asection *s;
1113 1.1 christos
1114 1.1 christos /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1115 1.1.1.2 christos all PT_LOAD segments. */
1116 1.1 christos s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext);
1117 1.1 christos if (s && (s->flags & SEC_LOAD))
1118 1.1 christos {
1119 1.1 christos for (m = elf_seg_map (abfd); m != NULL; m = m->next)
1120 1.1 christos if (m->p_type == PT_IA_64_ARCHEXT)
1121 1.1 christos break;
1122 1.1 christos if (m == NULL)
1123 1.1 christos {
1124 1.1 christos m = ((struct elf_segment_map *)
1125 1.1 christos bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
1126 1.1 christos if (m == NULL)
1127 1.1 christos return FALSE;
1128 1.1 christos
1129 1.1 christos m->p_type = PT_IA_64_ARCHEXT;
1130 1.1.1.2 christos m->count = 1;
1131 1.1 christos m->sections[0] = s;
1132 1.1 christos
1133 1.1 christos /* We want to put it after the PHDR and INTERP segments. */
1134 1.1 christos pm = &elf_seg_map (abfd);
1135 1.1 christos while (*pm != NULL
1136 1.1 christos && ((*pm)->p_type == PT_PHDR
1137 1.1 christos || (*pm)->p_type == PT_INTERP))
1138 1.1 christos pm = &(*pm)->next;
1139 1.1 christos
1140 1.1 christos m->next = *pm;
1141 1.1 christos *pm = m;
1142 1.1 christos }
1143 1.1 christos }
1144 1.1 christos
1145 1.1 christos /* Install PT_IA_64_UNWIND segments, if needed. */
1146 1.1 christos for (s = abfd->sections; s; s = s->next)
1147 1.1 christos {
1148 1.1 christos hdr = &elf_section_data (s)->this_hdr;
1149 1.1 christos if (hdr->sh_type != SHT_IA_64_UNWIND)
1150 1.1.1.2 christos continue;
1151 1.1 christos
1152 1.1 christos if (s && (s->flags & SEC_LOAD))
1153 1.1 christos {
1154 1.1 christos for (m = elf_seg_map (abfd); m != NULL; m = m->next)
1155 1.1 christos if (m->p_type == PT_IA_64_UNWIND)
1156 1.1 christos {
1157 1.1 christos int i;
1158 1.1 christos
1159 1.1 christos /* Look through all sections in the unwind segment
1160 1.1 christos for a match since there may be multiple sections
1161 1.1 christos to a segment. */
1162 1.1 christos for (i = m->count - 1; i >= 0; --i)
1163 1.1 christos if (m->sections[i] == s)
1164 1.1 christos break;
1165 1.1 christos
1166 1.1 christos if (i >= 0)
1167 1.1 christos break;
1168 1.1 christos }
1169 1.1 christos
1170 1.1 christos if (m == NULL)
1171 1.1 christos {
1172 1.1 christos m = ((struct elf_segment_map *)
1173 1.1 christos bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
1174 1.1 christos if (m == NULL)
1175 1.1 christos return FALSE;
1176 1.1 christos
1177 1.1 christos m->p_type = PT_IA_64_UNWIND;
1178 1.1 christos m->count = 1;
1179 1.1.1.2 christos m->sections[0] = s;
1180 1.1 christos m->next = NULL;
1181 1.1 christos
1182 1.1 christos /* We want to put it last. */
1183 1.1 christos pm = &elf_seg_map (abfd);
1184 1.1 christos while (*pm != NULL)
1185 1.1 christos pm = &(*pm)->next;
1186 1.1 christos *pm = m;
1187 1.1 christos }
1188 1.1 christos }
1189 1.1 christos }
1190 1.1 christos
1191 1.1 christos return TRUE;
1192 1.1 christos }
1193 1.1 christos
1194 1.1 christos /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1195 1.1 christos the input sections for each output section in the segment and testing
1196 1.1 christos for SHF_IA_64_NORECOV on each. */
1197 1.1 christos
1198 1.1 christos static bfd_boolean
1199 1.1 christos elfNN_ia64_modify_program_headers (bfd *abfd,
1200 1.1 christos struct bfd_link_info *info ATTRIBUTE_UNUSED)
1201 1.1 christos {
1202 1.1.1.2 christos struct elf_obj_tdata *tdata = elf_tdata (abfd);
1203 1.1 christos struct elf_segment_map *m;
1204 1.1 christos Elf_Internal_Phdr *p;
1205 1.1 christos
1206 1.1 christos for (p = tdata->phdr, m = elf_seg_map (abfd); m != NULL; m = m->next, p++)
1207 1.1 christos if (m->p_type == PT_LOAD)
1208 1.1 christos {
1209 1.1 christos int i;
1210 1.1 christos for (i = m->count - 1; i >= 0; --i)
1211 1.1 christos {
1212 1.1 christos struct bfd_link_order *order = m->sections[i]->map_head.link_order;
1213 1.1 christos
1214 1.1 christos while (order != NULL)
1215 1.1 christos {
1216 1.1 christos if (order->type == bfd_indirect_link_order)
1217 1.1 christos {
1218 1.1 christos asection *is = order->u.indirect.section;
1219 1.1 christos bfd_vma flags = elf_section_data(is)->this_hdr.sh_flags;
1220 1.1 christos if (flags & SHF_IA_64_NORECOV)
1221 1.1 christos {
1222 1.1 christos p->p_flags |= PF_IA_64_NORECOV;
1223 1.1 christos goto found;
1224 1.1 christos }
1225 1.1 christos }
1226 1.1 christos order = order->next;
1227 1.1 christos }
1228 1.1 christos }
1229 1.1 christos found:;
1230 1.1 christos }
1231 1.1 christos
1232 1.1 christos return TRUE;
1233 1.1 christos }
1234 1.1 christos
1235 1.1 christos /* According to the Tahoe assembler spec, all labels starting with a
1236 1.1 christos '.' are local. */
1237 1.1 christos
1238 1.1 christos static bfd_boolean
1239 1.1 christos elfNN_ia64_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
1240 1.1 christos const char *name)
1241 1.1 christos {
1242 1.1 christos return name[0] == '.';
1243 1.1 christos }
1244 1.1 christos
1245 1.1 christos /* Should we do dynamic things to this symbol? */
1246 1.1 christos
1247 1.1 christos static bfd_boolean
1248 1.1 christos elfNN_ia64_dynamic_symbol_p (struct elf_link_hash_entry *h,
1249 1.1 christos struct bfd_link_info *info, int r_type)
1250 1.1 christos {
1251 1.1 christos bfd_boolean ignore_protected
1252 1.1 christos = ((r_type & 0xf8) == 0x40 /* FPTR relocs */
1253 1.1 christos || (r_type & 0xf8) == 0x50); /* LTOFF_FPTR relocs */
1254 1.1 christos
1255 1.1 christos return _bfd_elf_dynamic_symbol_p (h, info, ignore_protected);
1256 1.1 christos }
1257 1.1 christos
1258 1.1 christos static struct bfd_hash_entry*
1260 1.1 christos elfNN_ia64_new_elf_hash_entry (struct bfd_hash_entry *entry,
1261 1.1 christos struct bfd_hash_table *table,
1262 1.1 christos const char *string)
1263 1.1 christos {
1264 1.1 christos struct elfNN_ia64_link_hash_entry *ret;
1265 1.1 christos ret = (struct elfNN_ia64_link_hash_entry *) entry;
1266 1.1 christos
1267 1.1 christos /* Allocate the structure if it has not already been allocated by a
1268 1.1 christos subclass. */
1269 1.1 christos if (!ret)
1270 1.1 christos ret = bfd_hash_allocate (table, sizeof (*ret));
1271 1.1 christos
1272 1.1 christos if (!ret)
1273 1.1 christos return 0;
1274 1.1 christos
1275 1.1 christos /* Call the allocation method of the superclass. */
1276 1.1 christos ret = ((struct elfNN_ia64_link_hash_entry *)
1277 1.1 christos _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1278 1.1 christos table, string));
1279 1.1 christos
1280 1.1 christos ret->info = NULL;
1281 1.1 christos ret->count = 0;
1282 1.1 christos ret->sorted_count = 0;
1283 1.1 christos ret->size = 0;
1284 1.1 christos return (struct bfd_hash_entry *) ret;
1285 1.1 christos }
1286 1.1 christos
1287 1.1 christos static void
1288 1.1 christos elfNN_ia64_hash_copy_indirect (struct bfd_link_info *info,
1289 1.1 christos struct elf_link_hash_entry *xdir,
1290 1.1 christos struct elf_link_hash_entry *xind)
1291 1.1 christos {
1292 1.1 christos struct elfNN_ia64_link_hash_entry *dir, *ind;
1293 1.1 christos
1294 1.1 christos dir = (struct elfNN_ia64_link_hash_entry *) xdir;
1295 1.1.1.4 christos ind = (struct elfNN_ia64_link_hash_entry *) xind;
1296 1.1.1.4 christos
1297 1.1 christos /* Copy down any references that we may have already seen to the
1298 1.1 christos symbol which just became indirect. */
1299 1.1 christos
1300 1.1 christos if (dir->root.versioned != versioned_hidden)
1301 1.1 christos dir->root.ref_dynamic |= ind->root.ref_dynamic;
1302 1.1 christos dir->root.ref_regular |= ind->root.ref_regular;
1303 1.1 christos dir->root.ref_regular_nonweak |= ind->root.ref_regular_nonweak;
1304 1.1 christos dir->root.needs_plt |= ind->root.needs_plt;
1305 1.1 christos
1306 1.1 christos if (ind->root.root.type != bfd_link_hash_indirect)
1307 1.1 christos return;
1308 1.1 christos
1309 1.1 christos /* Copy over the got and plt data. This would have been done
1310 1.1 christos by check_relocs. */
1311 1.1 christos
1312 1.1 christos if (ind->info != NULL)
1313 1.1 christos {
1314 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
1315 1.1 christos unsigned int count;
1316 1.1 christos
1317 1.1 christos if (dir->info)
1318 1.1 christos free (dir->info);
1319 1.1 christos
1320 1.1 christos dir->info = ind->info;
1321 1.1 christos dir->count = ind->count;
1322 1.1 christos dir->sorted_count = ind->sorted_count;
1323 1.1 christos dir->size = ind->size;
1324 1.1 christos
1325 1.1 christos ind->info = NULL;
1326 1.1 christos ind->count = 0;
1327 1.1 christos ind->sorted_count = 0;
1328 1.1 christos ind->size = 0;
1329 1.1 christos
1330 1.1 christos /* Fix up the dyn_sym_info pointers to the global symbol. */
1331 1.1 christos for (count = dir->count, dyn_i = dir->info;
1332 1.1 christos count != 0;
1333 1.1 christos count--, dyn_i++)
1334 1.1 christos dyn_i->h = &dir->root;
1335 1.1 christos }
1336 1.1 christos
1337 1.1 christos /* Copy over the dynindx. */
1338 1.1 christos
1339 1.1 christos if (ind->root.dynindx != -1)
1340 1.1 christos {
1341 1.1 christos if (dir->root.dynindx != -1)
1342 1.1 christos _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1343 1.1 christos dir->root.dynstr_index);
1344 1.1 christos dir->root.dynindx = ind->root.dynindx;
1345 1.1 christos dir->root.dynstr_index = ind->root.dynstr_index;
1346 1.1 christos ind->root.dynindx = -1;
1347 1.1 christos ind->root.dynstr_index = 0;
1348 1.1 christos }
1349 1.1 christos }
1350 1.1 christos
1351 1.1 christos static void
1352 1.1 christos elfNN_ia64_hash_hide_symbol (struct bfd_link_info *info,
1353 1.1 christos struct elf_link_hash_entry *xh,
1354 1.1 christos bfd_boolean force_local)
1355 1.1 christos {
1356 1.1 christos struct elfNN_ia64_link_hash_entry *h;
1357 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
1358 1.1 christos unsigned int count;
1359 1.1 christos
1360 1.1 christos h = (struct elfNN_ia64_link_hash_entry *)xh;
1361 1.1 christos
1362 1.1 christos _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local);
1363 1.1 christos
1364 1.1 christos for (count = h->count, dyn_i = h->info;
1365 1.1 christos count != 0;
1366 1.1 christos count--, dyn_i++)
1367 1.1 christos {
1368 1.1 christos dyn_i->want_plt2 = 0;
1369 1.1 christos dyn_i->want_plt = 0;
1370 1.1 christos }
1371 1.1 christos }
1372 1.1 christos
1373 1.1 christos /* Compute a hash of a local hash entry. */
1374 1.1 christos
1375 1.1 christos static hashval_t
1376 1.1 christos elfNN_ia64_local_htab_hash (const void *ptr)
1377 1.1 christos {
1378 1.1 christos struct elfNN_ia64_local_hash_entry *entry
1379 1.1 christos = (struct elfNN_ia64_local_hash_entry *) ptr;
1380 1.1 christos
1381 1.1 christos return ELF_LOCAL_SYMBOL_HASH (entry->id, entry->r_sym);
1382 1.1 christos }
1383 1.1 christos
1384 1.1 christos /* Compare local hash entries. */
1385 1.1 christos
1386 1.1 christos static int
1387 1.1 christos elfNN_ia64_local_htab_eq (const void *ptr1, const void *ptr2)
1388 1.1 christos {
1389 1.1 christos struct elfNN_ia64_local_hash_entry *entry1
1390 1.1 christos = (struct elfNN_ia64_local_hash_entry *) ptr1;
1391 1.1 christos struct elfNN_ia64_local_hash_entry *entry2
1392 1.1 christos = (struct elfNN_ia64_local_hash_entry *) ptr2;
1393 1.1 christos
1394 1.1 christos return entry1->id == entry2->id && entry1->r_sym == entry2->r_sym;
1395 1.1 christos }
1396 1.1 christos
1397 1.1 christos /* Free the global elfNN_ia64_dyn_sym_info array. */
1398 1.1 christos
1399 1.1 christos static bfd_boolean
1400 1.1 christos elfNN_ia64_global_dyn_info_free (void **xentry,
1401 1.1 christos void * unused ATTRIBUTE_UNUSED)
1402 1.1 christos {
1403 1.1 christos struct elfNN_ia64_link_hash_entry *entry
1404 1.1 christos = (struct elfNN_ia64_link_hash_entry *) xentry;
1405 1.1 christos
1406 1.1 christos if (entry->info)
1407 1.1 christos {
1408 1.1 christos free (entry->info);
1409 1.1 christos entry->info = NULL;
1410 1.1 christos entry->count = 0;
1411 1.1 christos entry->sorted_count = 0;
1412 1.1 christos entry->size = 0;
1413 1.1 christos }
1414 1.1 christos
1415 1.1 christos return TRUE;
1416 1.1 christos }
1417 1.1 christos
1418 1.1 christos /* Free the local elfNN_ia64_dyn_sym_info array. */
1419 1.1 christos
1420 1.1 christos static bfd_boolean
1421 1.1 christos elfNN_ia64_local_dyn_info_free (void **slot,
1422 1.1 christos void * unused ATTRIBUTE_UNUSED)
1423 1.1 christos {
1424 1.1 christos struct elfNN_ia64_local_hash_entry *entry
1425 1.1 christos = (struct elfNN_ia64_local_hash_entry *) *slot;
1426 1.1 christos
1427 1.1 christos if (entry->info)
1428 1.1 christos {
1429 1.1 christos free (entry->info);
1430 1.1 christos entry->info = NULL;
1431 1.1 christos entry->count = 0;
1432 1.1 christos entry->sorted_count = 0;
1433 1.1 christos entry->size = 0;
1434 1.1 christos }
1435 1.1 christos
1436 1.1 christos return TRUE;
1437 1.1.1.2 christos }
1438 1.1 christos
1439 1.1 christos /* Destroy IA-64 linker hash table. */
1440 1.1.1.2 christos
1441 1.1 christos static void
1442 1.1 christos elfNN_ia64_link_hash_table_free (bfd *obfd)
1443 1.1 christos {
1444 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info
1445 1.1 christos = (struct elfNN_ia64_link_hash_table *) obfd->link.hash;
1446 1.1 christos if (ia64_info->loc_hash_table)
1447 1.1 christos {
1448 1.1 christos htab_traverse (ia64_info->loc_hash_table,
1449 1.1 christos elfNN_ia64_local_dyn_info_free, NULL);
1450 1.1 christos htab_delete (ia64_info->loc_hash_table);
1451 1.1.1.2 christos }
1452 1.1.1.2 christos if (ia64_info->loc_hash_memory)
1453 1.1.1.2 christos objalloc_free ((struct objalloc *) ia64_info->loc_hash_memory);
1454 1.1.1.2 christos elf_link_hash_traverse (&ia64_info->root,
1455 1.1.1.2 christos elfNN_ia64_global_dyn_info_free, NULL);
1456 1.1.1.2 christos _bfd_elf_link_hash_table_free (obfd);
1457 1.1.1.2 christos }
1458 1.1.1.2 christos
1459 1.1.1.2 christos /* Create the derived linker hash table. The IA-64 ELF port uses this
1460 1.1.1.2 christos derived hash table to keep information specific to the IA-64 ElF
1461 1.1.1.2 christos linker (without using static variables). */
1462 1.1.1.2 christos
1463 1.1.1.2 christos static struct bfd_link_hash_table *
1464 1.1.1.2 christos elfNN_ia64_hash_table_create (bfd *abfd)
1465 1.1.1.2 christos {
1466 1.1.1.2 christos struct elfNN_ia64_link_hash_table *ret;
1467 1.1.1.2 christos
1468 1.1.1.2 christos ret = bfd_zmalloc ((bfd_size_type) sizeof (*ret));
1469 1.1.1.2 christos if (!ret)
1470 1.1.1.2 christos return NULL;
1471 1.1.1.2 christos
1472 1.1.1.2 christos if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1473 1.1.1.2 christos elfNN_ia64_new_elf_hash_entry,
1474 1.1.1.2 christos sizeof (struct elfNN_ia64_link_hash_entry),
1475 1.1.1.2 christos IA64_ELF_DATA))
1476 1.1.1.2 christos {
1477 1.1.1.2 christos free (ret);
1478 1.1.1.2 christos return NULL;
1479 1.1.1.2 christos }
1480 1.1.1.2 christos
1481 1.1.1.2 christos ret->loc_hash_table = htab_try_create (1024, elfNN_ia64_local_htab_hash,
1482 1.1.1.2 christos elfNN_ia64_local_htab_eq, NULL);
1483 1.1.1.2 christos ret->loc_hash_memory = objalloc_create ();
1484 1.1.1.2 christos if (!ret->loc_hash_table || !ret->loc_hash_memory)
1485 1.1.1.2 christos {
1486 1.1.1.2 christos elfNN_ia64_link_hash_table_free (abfd);
1487 1.1 christos return NULL;
1488 1.1 christos }
1489 1.1 christos ret->root.root.hash_table_free = elfNN_ia64_link_hash_table_free;
1490 1.1 christos
1491 1.1 christos return &ret->root.root;
1492 1.1 christos }
1493 1.1 christos
1494 1.1 christos /* Traverse both local and global hash tables. */
1495 1.1 christos
1496 1.1 christos struct elfNN_ia64_dyn_sym_traverse_data
1497 1.1 christos {
1498 1.1 christos bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, void *);
1499 1.1 christos void * data;
1500 1.1 christos };
1501 1.1 christos
1502 1.1 christos static bfd_boolean
1503 1.1 christos elfNN_ia64_global_dyn_sym_thunk (struct bfd_hash_entry *xentry,
1504 1.1 christos void * xdata)
1505 1.1 christos {
1506 1.1 christos struct elfNN_ia64_link_hash_entry *entry
1507 1.1 christos = (struct elfNN_ia64_link_hash_entry *) xentry;
1508 1.1 christos struct elfNN_ia64_dyn_sym_traverse_data *data
1509 1.1 christos = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1510 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
1511 1.1 christos unsigned int count;
1512 1.1 christos
1513 1.1 christos for (count = entry->count, dyn_i = entry->info;
1514 1.1 christos count != 0;
1515 1.1 christos count--, dyn_i++)
1516 1.1 christos if (! (*data->func) (dyn_i, data->data))
1517 1.1 christos return FALSE;
1518 1.1 christos return TRUE;
1519 1.1 christos }
1520 1.1 christos
1521 1.1 christos static bfd_boolean
1522 1.1 christos elfNN_ia64_local_dyn_sym_thunk (void **slot, void * xdata)
1523 1.1 christos {
1524 1.1 christos struct elfNN_ia64_local_hash_entry *entry
1525 1.1 christos = (struct elfNN_ia64_local_hash_entry *) *slot;
1526 1.1 christos struct elfNN_ia64_dyn_sym_traverse_data *data
1527 1.1 christos = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1528 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
1529 1.1 christos unsigned int count;
1530 1.1 christos
1531 1.1 christos for (count = entry->count, dyn_i = entry->info;
1532 1.1 christos count != 0;
1533 1.1 christos count--, dyn_i++)
1534 1.1 christos if (! (*data->func) (dyn_i, data->data))
1535 1.1 christos return FALSE;
1536 1.1 christos return TRUE;
1537 1.1 christos }
1538 1.1 christos
1539 1.1 christos static void
1540 1.1 christos elfNN_ia64_dyn_sym_traverse (struct elfNN_ia64_link_hash_table *ia64_info,
1541 1.1 christos bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, void *),
1542 1.1 christos void * data)
1543 1.1 christos {
1544 1.1 christos struct elfNN_ia64_dyn_sym_traverse_data xdata;
1545 1.1 christos
1546 1.1 christos xdata.func = func;
1547 1.1 christos xdata.data = data;
1548 1.1 christos
1549 1.1 christos elf_link_hash_traverse (&ia64_info->root,
1550 1.1 christos elfNN_ia64_global_dyn_sym_thunk, &xdata);
1551 1.1 christos htab_traverse (ia64_info->loc_hash_table,
1552 1.1 christos elfNN_ia64_local_dyn_sym_thunk, &xdata);
1553 1.1 christos }
1554 1.1 christos
1555 1.1 christos static bfd_boolean
1557 1.1 christos elfNN_ia64_create_dynamic_sections (bfd *abfd,
1558 1.1 christos struct bfd_link_info *info)
1559 1.1 christos {
1560 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
1561 1.1 christos asection *s;
1562 1.1 christos
1563 1.1 christos if (! _bfd_elf_create_dynamic_sections (abfd, info))
1564 1.1 christos return FALSE;
1565 1.1 christos
1566 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
1567 1.1 christos if (ia64_info == NULL)
1568 1.1 christos return FALSE;
1569 1.1.1.2 christos
1570 1.1.1.2 christos {
1571 1.1 christos flagword flags = bfd_get_section_flags (abfd, ia64_info->root.sgot);
1572 1.1 christos bfd_set_section_flags (abfd, ia64_info->root.sgot,
1573 1.1 christos SEC_SMALL_DATA | flags);
1574 1.1 christos /* The .got section is always aligned at 8 bytes. */
1575 1.1 christos if (! bfd_set_section_alignment (abfd, ia64_info->root.sgot, 3))
1576 1.1 christos return FALSE;
1577 1.1 christos }
1578 1.1 christos
1579 1.1 christos if (!get_pltoff (abfd, info, ia64_info))
1580 1.1 christos return FALSE;
1581 1.1 christos
1582 1.1 christos s = bfd_make_section_anyway_with_flags (abfd, ".rela.IA_64.pltoff",
1583 1.1 christos (SEC_ALLOC | SEC_LOAD
1584 1.1 christos | SEC_HAS_CONTENTS
1585 1.1 christos | SEC_IN_MEMORY
1586 1.1 christos | SEC_LINKER_CREATED
1587 1.1 christos | SEC_READONLY));
1588 1.1 christos if (s == NULL
1589 1.1 christos || !bfd_set_section_alignment (abfd, s, LOG_SECTION_ALIGN))
1590 1.1 christos return FALSE;
1591 1.1 christos ia64_info->rel_pltoff_sec = s;
1592 1.1 christos
1593 1.1 christos return TRUE;
1594 1.1 christos }
1595 1.1 christos
1596 1.1 christos /* Find and/or create a hash entry for local symbol. */
1597 1.1 christos static struct elfNN_ia64_local_hash_entry *
1598 1.1 christos get_local_sym_hash (struct elfNN_ia64_link_hash_table *ia64_info,
1599 1.1 christos bfd *abfd, const Elf_Internal_Rela *rel,
1600 1.1 christos bfd_boolean create)
1601 1.1 christos {
1602 1.1 christos struct elfNN_ia64_local_hash_entry e, *ret;
1603 1.1 christos asection *sec = abfd->sections;
1604 1.1 christos hashval_t h = ELF_LOCAL_SYMBOL_HASH (sec->id,
1605 1.1 christos ELFNN_R_SYM (rel->r_info));
1606 1.1 christos void **slot;
1607 1.1 christos
1608 1.1 christos e.id = sec->id;
1609 1.1 christos e.r_sym = ELFNN_R_SYM (rel->r_info);
1610 1.1 christos slot = htab_find_slot_with_hash (ia64_info->loc_hash_table, &e, h,
1611 1.1 christos create ? INSERT : NO_INSERT);
1612 1.1 christos
1613 1.1 christos if (!slot)
1614 1.1 christos return NULL;
1615 1.1 christos
1616 1.1 christos if (*slot)
1617 1.1 christos return (struct elfNN_ia64_local_hash_entry *) *slot;
1618 1.1 christos
1619 1.1 christos ret = (struct elfNN_ia64_local_hash_entry *)
1620 1.1 christos objalloc_alloc ((struct objalloc *) ia64_info->loc_hash_memory,
1621 1.1 christos sizeof (struct elfNN_ia64_local_hash_entry));
1622 1.1 christos if (ret)
1623 1.1 christos {
1624 1.1 christos memset (ret, 0, sizeof (*ret));
1625 1.1 christos ret->id = sec->id;
1626 1.1 christos ret->r_sym = ELFNN_R_SYM (rel->r_info);
1627 1.1 christos *slot = ret;
1628 1.1 christos }
1629 1.1 christos return ret;
1630 1.1 christos }
1631 1.1 christos
1632 1.1 christos /* Used to sort elfNN_ia64_dyn_sym_info array. */
1633 1.1 christos
1634 1.1 christos static int
1635 1.1 christos addend_compare (const void *xp, const void *yp)
1636 1.1 christos {
1637 1.1 christos const struct elfNN_ia64_dyn_sym_info *x
1638 1.1 christos = (const struct elfNN_ia64_dyn_sym_info *) xp;
1639 1.1 christos const struct elfNN_ia64_dyn_sym_info *y
1640 1.1 christos = (const struct elfNN_ia64_dyn_sym_info *) yp;
1641 1.1 christos
1642 1.1 christos return x->addend < y->addend ? -1 : x->addend > y->addend ? 1 : 0;
1643 1.1 christos }
1644 1.1 christos
1645 1.1 christos /* Sort elfNN_ia64_dyn_sym_info array and remove duplicates. */
1646 1.1 christos
1647 1.1 christos static unsigned int
1648 1.1 christos sort_dyn_sym_info (struct elfNN_ia64_dyn_sym_info *info,
1649 1.1 christos unsigned int count)
1650 1.1 christos {
1651 1.1 christos bfd_vma curr, prev, got_offset;
1652 1.1 christos unsigned int i, kept, dupes, diff, dest, src, len;
1653 1.1 christos
1654 1.1 christos qsort (info, count, sizeof (*info), addend_compare);
1655 1.1 christos
1656 1.1 christos /* Find the first duplicate. */
1657 1.1 christos prev = info [0].addend;
1658 1.1 christos got_offset = info [0].got_offset;
1659 1.1 christos for (i = 1; i < count; i++)
1660 1.1 christos {
1661 1.1 christos curr = info [i].addend;
1662 1.1 christos if (curr == prev)
1663 1.1 christos {
1664 1.1 christos /* For duplicates, make sure that GOT_OFFSET is valid. */
1665 1.1 christos if (got_offset == (bfd_vma) -1)
1666 1.1 christos got_offset = info [i].got_offset;
1667 1.1 christos break;
1668 1.1 christos }
1669 1.1 christos got_offset = info [i].got_offset;
1670 1.1 christos prev = curr;
1671 1.1 christos }
1672 1.1 christos
1673 1.1 christos /* We may move a block of elements to here. */
1674 1.1 christos dest = i++;
1675 1.1 christos
1676 1.1 christos /* Remove duplicates. */
1677 1.1 christos if (i < count)
1678 1.1 christos {
1679 1.1 christos while (i < count)
1680 1.1 christos {
1681 1.1 christos /* For duplicates, make sure that the kept one has a valid
1682 1.1 christos got_offset. */
1683 1.1 christos kept = dest - 1;
1684 1.1 christos if (got_offset != (bfd_vma) -1)
1685 1.1 christos info [kept].got_offset = got_offset;
1686 1.1 christos
1687 1.1 christos curr = info [i].addend;
1688 1.1 christos got_offset = info [i].got_offset;
1689 1.1 christos
1690 1.1 christos /* Move a block of elements whose first one is different from
1691 1.1 christos the previous. */
1692 1.1 christos if (curr == prev)
1693 1.1 christos {
1694 1.1 christos for (src = i + 1; src < count; src++)
1695 1.1 christos {
1696 1.1 christos if (info [src].addend != curr)
1697 1.1 christos break;
1698 1.1 christos /* For duplicates, make sure that GOT_OFFSET is
1699 1.1 christos valid. */
1700 1.1 christos if (got_offset == (bfd_vma) -1)
1701 1.1 christos got_offset = info [src].got_offset;
1702 1.1 christos }
1703 1.1 christos
1704 1.1 christos /* Make sure that the kept one has a valid got_offset. */
1705 1.1 christos if (got_offset != (bfd_vma) -1)
1706 1.1 christos info [kept].got_offset = got_offset;
1707 1.1 christos }
1708 1.1 christos else
1709 1.1 christos src = i;
1710 1.1 christos
1711 1.1 christos if (src >= count)
1712 1.1 christos break;
1713 1.1 christos
1714 1.1 christos /* Find the next duplicate. SRC will be kept. */
1715 1.1 christos prev = info [src].addend;
1716 1.1 christos got_offset = info [src].got_offset;
1717 1.1 christos for (dupes = src + 1; dupes < count; dupes ++)
1718 1.1 christos {
1719 1.1 christos curr = info [dupes].addend;
1720 1.1 christos if (curr == prev)
1721 1.1 christos {
1722 1.1 christos /* Make sure that got_offset is valid. */
1723 1.1 christos if (got_offset == (bfd_vma) -1)
1724 1.1 christos got_offset = info [dupes].got_offset;
1725 1.1 christos
1726 1.1 christos /* For duplicates, make sure that the kept one has
1727 1.1 christos a valid got_offset. */
1728 1.1 christos if (got_offset != (bfd_vma) -1)
1729 1.1 christos info [dupes - 1].got_offset = got_offset;
1730 1.1 christos break;
1731 1.1 christos }
1732 1.1 christos got_offset = info [dupes].got_offset;
1733 1.1 christos prev = curr;
1734 1.1 christos }
1735 1.1 christos
1736 1.1 christos /* How much to move. */
1737 1.1 christos len = dupes - src;
1738 1.1 christos i = dupes + 1;
1739 1.1 christos
1740 1.1 christos if (len == 1 && dupes < count)
1741 1.1 christos {
1742 1.1 christos /* If we only move 1 element, we combine it with the next
1743 1.1 christos one. There must be at least a duplicate. Find the
1744 1.1 christos next different one. */
1745 1.1 christos for (diff = dupes + 1, src++; diff < count; diff++, src++)
1746 1.1 christos {
1747 1.1 christos if (info [diff].addend != curr)
1748 1.1 christos break;
1749 1.1 christos /* Make sure that got_offset is valid. */
1750 1.1 christos if (got_offset == (bfd_vma) -1)
1751 1.1 christos got_offset = info [diff].got_offset;
1752 1.1 christos }
1753 1.1 christos
1754 1.1 christos /* Makre sure that the last duplicated one has an valid
1755 1.1 christos offset. */
1756 1.1 christos BFD_ASSERT (curr == prev);
1757 1.1 christos if (got_offset != (bfd_vma) -1)
1758 1.1 christos info [diff - 1].got_offset = got_offset;
1759 1.1 christos
1760 1.1 christos if (diff < count)
1761 1.1 christos {
1762 1.1 christos /* Find the next duplicate. Track the current valid
1763 1.1 christos offset. */
1764 1.1 christos prev = info [diff].addend;
1765 1.1 christos got_offset = info [diff].got_offset;
1766 1.1 christos for (dupes = diff + 1; dupes < count; dupes ++)
1767 1.1 christos {
1768 1.1 christos curr = info [dupes].addend;
1769 1.1 christos if (curr == prev)
1770 1.1 christos {
1771 1.1 christos /* For duplicates, make sure that GOT_OFFSET
1772 1.1 christos is valid. */
1773 1.1 christos if (got_offset == (bfd_vma) -1)
1774 1.1 christos got_offset = info [dupes].got_offset;
1775 1.1 christos break;
1776 1.1 christos }
1777 1.1 christos got_offset = info [dupes].got_offset;
1778 1.1 christos prev = curr;
1779 1.1 christos diff++;
1780 1.1 christos }
1781 1.1 christos
1782 1.1 christos len = diff - src + 1;
1783 1.1 christos i = diff + 1;
1784 1.1 christos }
1785 1.1 christos }
1786 1.1 christos
1787 1.1 christos memmove (&info [dest], &info [src], len * sizeof (*info));
1788 1.1 christos
1789 1.1 christos dest += len;
1790 1.1 christos }
1791 1.1 christos
1792 1.1 christos count = dest;
1793 1.1 christos }
1794 1.1 christos else
1795 1.1 christos {
1796 1.1 christos /* When we get here, either there is no duplicate at all or
1797 1.1 christos the only duplicate is the last element. */
1798 1.1 christos if (dest < count)
1799 1.1 christos {
1800 1.1 christos /* If the last element is a duplicate, make sure that the
1801 1.1 christos kept one has a valid got_offset. We also update count. */
1802 1.1 christos if (got_offset != (bfd_vma) -1)
1803 1.1 christos info [dest - 1].got_offset = got_offset;
1804 1.1 christos count = dest;
1805 1.1 christos }
1806 1.1 christos }
1807 1.1 christos
1808 1.1 christos return count;
1809 1.1 christos }
1810 1.1 christos
1811 1.1 christos /* Find and/or create a descriptor for dynamic symbol info. This will
1812 1.1 christos vary based on global or local symbol, and the addend to the reloc.
1813 1.1 christos
1814 1.1 christos We don't sort when inserting. Also, we sort and eliminate
1815 1.1 christos duplicates if there is an unsorted section. Typically, this will
1816 1.1 christos only happen once, because we do all insertions before lookups. We
1817 1.1 christos then use bsearch to do a lookup. This also allows lookups to be
1818 1.1 christos fast. So we have fast insertion (O(log N) due to duplicate check),
1819 1.1 christos fast lookup (O(log N)) and one sort (O(N log N) expected time).
1820 1.1 christos Previously, all lookups were O(N) because of the use of the linked
1821 1.1 christos list and also all insertions were O(N) because of the check for
1822 1.1 christos duplicates. There are some complications here because the array
1823 1.1 christos size grows occasionally, which may add an O(N) factor, but this
1824 1.1 christos should be rare. Also, we free the excess array allocation, which
1825 1.1 christos requires a copy which is O(N), but this only happens once. */
1826 1.1 christos
1827 1.1 christos static struct elfNN_ia64_dyn_sym_info *
1828 1.1 christos get_dyn_sym_info (struct elfNN_ia64_link_hash_table *ia64_info,
1829 1.1 christos struct elf_link_hash_entry *h, bfd *abfd,
1830 1.1 christos const Elf_Internal_Rela *rel, bfd_boolean create)
1831 1.1 christos {
1832 1.1 christos struct elfNN_ia64_dyn_sym_info **info_p, *info, *dyn_i, key;
1833 1.1 christos unsigned int *count_p, *sorted_count_p, *size_p;
1834 1.1 christos unsigned int count, sorted_count, size;
1835 1.1 christos bfd_vma addend = rel ? rel->r_addend : 0;
1836 1.1 christos bfd_size_type amt;
1837 1.1 christos
1838 1.1 christos if (h)
1839 1.1 christos {
1840 1.1 christos struct elfNN_ia64_link_hash_entry *global_h;
1841 1.1 christos
1842 1.1 christos global_h = (struct elfNN_ia64_link_hash_entry *) h;
1843 1.1 christos info_p = &global_h->info;
1844 1.1 christos count_p = &global_h->count;
1845 1.1 christos sorted_count_p = &global_h->sorted_count;
1846 1.1 christos size_p = &global_h->size;
1847 1.1 christos }
1848 1.1 christos else
1849 1.1 christos {
1850 1.1 christos struct elfNN_ia64_local_hash_entry *loc_h;
1851 1.1 christos
1852 1.1 christos loc_h = get_local_sym_hash (ia64_info, abfd, rel, create);
1853 1.1 christos if (!loc_h)
1854 1.1 christos {
1855 1.1 christos BFD_ASSERT (!create);
1856 1.1 christos return NULL;
1857 1.1 christos }
1858 1.1 christos
1859 1.1 christos info_p = &loc_h->info;
1860 1.1 christos count_p = &loc_h->count;
1861 1.1 christos sorted_count_p = &loc_h->sorted_count;
1862 1.1 christos size_p = &loc_h->size;
1863 1.1 christos }
1864 1.1 christos
1865 1.1 christos count = *count_p;
1866 1.1.1.4 christos sorted_count = *sorted_count_p;
1867 1.1 christos size = *size_p;
1868 1.1 christos info = *info_p;
1869 1.1 christos if (create)
1870 1.1 christos {
1871 1.1 christos /* When we create the array, we don't check for duplicates,
1872 1.1 christos except in the previously sorted section if one exists, and
1873 1.1 christos against the last inserted entry. This allows insertions to
1874 1.1 christos be fast. */
1875 1.1 christos if (info)
1876 1.1 christos {
1877 1.1 christos if (sorted_count)
1878 1.1 christos {
1879 1.1 christos /* Try bsearch first on the sorted section. */
1880 1.1 christos key.addend = addend;
1881 1.1 christos dyn_i = bsearch (&key, info, sorted_count,
1882 1.1 christos sizeof (*info), addend_compare);
1883 1.1 christos
1884 1.1 christos if (dyn_i)
1885 1.1 christos {
1886 1.1 christos return dyn_i;
1887 1.1 christos }
1888 1.1 christos }
1889 1.1 christos
1890 1.1 christos /* Do a quick check for the last inserted entry. */
1891 1.1 christos dyn_i = info + count - 1;
1892 1.1 christos if (dyn_i->addend == addend)
1893 1.1 christos {
1894 1.1 christos return dyn_i;
1895 1.1 christos }
1896 1.1 christos }
1897 1.1 christos
1898 1.1 christos if (size == 0)
1899 1.1 christos {
1900 1.1 christos /* It is the very first element. We create the array of size
1901 1.1 christos 1. */
1902 1.1 christos size = 1;
1903 1.1 christos amt = size * sizeof (*info);
1904 1.1 christos info = bfd_malloc (amt);
1905 1.1 christos }
1906 1.1 christos else if (size <= count)
1907 1.1 christos {
1908 1.1 christos /* We double the array size every time when we reach the
1909 1.1 christos size limit. */
1910 1.1 christos size += size;
1911 1.1 christos amt = size * sizeof (*info);
1912 1.1 christos info = bfd_realloc (info, amt);
1913 1.1 christos }
1914 1.1 christos else
1915 1.1 christos goto has_space;
1916 1.1 christos
1917 1.1 christos if (info == NULL)
1918 1.1 christos return NULL;
1919 1.1 christos *size_p = size;
1920 1.1 christos *info_p = info;
1921 1.1 christos
1922 1.1 christos has_space:
1923 1.1 christos /* Append the new one to the array. */
1924 1.1 christos dyn_i = info + count;
1925 1.1 christos memset (dyn_i, 0, sizeof (*dyn_i));
1926 1.1 christos dyn_i->got_offset = (bfd_vma) -1;
1927 1.1 christos dyn_i->addend = addend;
1928 1.1 christos
1929 1.1 christos /* We increment count only since the new ones are unsorted and
1930 1.1 christos may have duplicate. */
1931 1.1 christos (*count_p)++;
1932 1.1 christos }
1933 1.1 christos else
1934 1.1 christos {
1935 1.1 christos /* It is a lookup without insertion. Sort array if part of the
1936 1.1 christos array isn't sorted. */
1937 1.1 christos if (count != sorted_count)
1938 1.1 christos {
1939 1.1 christos count = sort_dyn_sym_info (info, count);
1940 1.1 christos *count_p = count;
1941 1.1 christos *sorted_count_p = count;
1942 1.1 christos }
1943 1.1 christos
1944 1.1 christos /* Free unused memory. */
1945 1.1 christos if (size != count)
1946 1.1 christos {
1947 1.1 christos amt = count * sizeof (*info);
1948 1.1 christos info = bfd_malloc (amt);
1949 1.1 christos if (info != NULL)
1950 1.1 christos {
1951 1.1 christos memcpy (info, *info_p, amt);
1952 1.1 christos free (*info_p);
1953 1.1 christos *size_p = count;
1954 1.1 christos *info_p = info;
1955 1.1 christos }
1956 1.1 christos }
1957 1.1 christos
1958 1.1 christos key.addend = addend;
1959 1.1 christos dyn_i = bsearch (&key, info, count,
1960 1.1 christos sizeof (*info), addend_compare);
1961 1.1 christos }
1962 1.1 christos
1963 1.1 christos return dyn_i;
1964 1.1 christos }
1965 1.1 christos
1966 1.1 christos static asection *
1967 1.1 christos get_got (bfd *abfd, struct bfd_link_info *info,
1968 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info)
1969 1.1 christos {
1970 1.1 christos asection *got;
1971 1.1 christos bfd *dynobj;
1972 1.1 christos
1973 1.1 christos got = ia64_info->root.sgot;
1974 1.1 christos if (!got)
1975 1.1 christos {
1976 1.1.1.2 christos flagword flags;
1977 1.1 christos
1978 1.1 christos dynobj = ia64_info->root.dynobj;
1979 1.1 christos if (!dynobj)
1980 1.1 christos ia64_info->root.dynobj = dynobj = abfd;
1981 1.1 christos if (!_bfd_elf_create_got_section (dynobj, info))
1982 1.1.1.2 christos return NULL;
1983 1.1 christos
1984 1.1 christos got = ia64_info->root.sgot;
1985 1.1.1.2 christos
1986 1.1.1.2 christos /* The .got section is always aligned at 8 bytes. */
1987 1.1 christos if (!bfd_set_section_alignment (abfd, got, 3))
1988 1.1 christos return NULL;
1989 1.1 christos
1990 1.1 christos flags = bfd_get_section_flags (abfd, got);
1991 1.1 christos if (! bfd_set_section_flags (abfd, got, SEC_SMALL_DATA | flags))
1992 1.1 christos return NULL;
1993 1.1 christos }
1994 1.1 christos
1995 1.1 christos return got;
1996 1.1 christos }
1997 1.1 christos
1998 1.1 christos /* Create function descriptor section (.opd). This section is called .opd
1999 1.1 christos because it contains "official procedure descriptors". The "official"
2000 1.1 christos refers to the fact that these descriptors are used when taking the address
2001 1.1 christos of a procedure, thus ensuring a unique address for each procedure. */
2002 1.1 christos
2003 1.1 christos static asection *
2004 1.1 christos get_fptr (bfd *abfd, struct bfd_link_info *info,
2005 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info)
2006 1.1 christos {
2007 1.1 christos asection *fptr;
2008 1.1 christos bfd *dynobj;
2009 1.1 christos
2010 1.1 christos fptr = ia64_info->fptr_sec;
2011 1.1 christos if (!fptr)
2012 1.1 christos {
2013 1.1 christos dynobj = ia64_info->root.dynobj;
2014 1.1 christos if (!dynobj)
2015 1.1 christos ia64_info->root.dynobj = dynobj = abfd;
2016 1.1.1.2 christos
2017 1.1.1.2 christos fptr = bfd_make_section_anyway_with_flags (dynobj, ".opd",
2018 1.1 christos (SEC_ALLOC
2019 1.1 christos | SEC_LOAD
2020 1.1 christos | SEC_HAS_CONTENTS
2021 1.1 christos | SEC_IN_MEMORY
2022 1.1 christos | (bfd_link_pie (info)
2023 1.1 christos ? 0 : SEC_READONLY)
2024 1.1 christos | SEC_LINKER_CREATED));
2025 1.1 christos if (!fptr
2026 1.1 christos || !bfd_set_section_alignment (abfd, fptr, 4))
2027 1.1 christos {
2028 1.1.1.2 christos BFD_ASSERT (0);
2029 1.1 christos return NULL;
2030 1.1 christos }
2031 1.1 christos
2032 1.1 christos ia64_info->fptr_sec = fptr;
2033 1.1 christos
2034 1.1 christos if (bfd_link_pie (info))
2035 1.1 christos {
2036 1.1 christos asection *fptr_rel;
2037 1.1 christos fptr_rel = bfd_make_section_anyway_with_flags (dynobj, ".rela.opd",
2038 1.1 christos (SEC_ALLOC | SEC_LOAD
2039 1.1 christos | SEC_HAS_CONTENTS
2040 1.1 christos | SEC_IN_MEMORY
2041 1.1 christos | SEC_LINKER_CREATED
2042 1.1 christos | SEC_READONLY));
2043 1.1 christos if (fptr_rel == NULL
2044 1.1 christos || !bfd_set_section_alignment (abfd, fptr_rel,
2045 1.1 christos LOG_SECTION_ALIGN))
2046 1.1 christos {
2047 1.1 christos BFD_ASSERT (0);
2048 1.1 christos return NULL;
2049 1.1 christos }
2050 1.1 christos
2051 1.1 christos ia64_info->rel_fptr_sec = fptr_rel;
2052 1.1 christos }
2053 1.1 christos }
2054 1.1 christos
2055 1.1 christos return fptr;
2056 1.1 christos }
2057 1.1 christos
2058 1.1 christos static asection *
2059 1.1 christos get_pltoff (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED,
2060 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info)
2061 1.1 christos {
2062 1.1 christos asection *pltoff;
2063 1.1 christos bfd *dynobj;
2064 1.1 christos
2065 1.1 christos pltoff = ia64_info->pltoff_sec;
2066 1.1 christos if (!pltoff)
2067 1.1 christos {
2068 1.1 christos dynobj = ia64_info->root.dynobj;
2069 1.1 christos if (!dynobj)
2070 1.1 christos ia64_info->root.dynobj = dynobj = abfd;
2071 1.1 christos
2072 1.1 christos pltoff = bfd_make_section_anyway_with_flags (dynobj,
2073 1.1 christos ELF_STRING_ia64_pltoff,
2074 1.1 christos (SEC_ALLOC
2075 1.1 christos | SEC_LOAD
2076 1.1 christos | SEC_HAS_CONTENTS
2077 1.1 christos | SEC_IN_MEMORY
2078 1.1 christos | SEC_SMALL_DATA
2079 1.1 christos | SEC_LINKER_CREATED));
2080 1.1 christos if (!pltoff
2081 1.1 christos || !bfd_set_section_alignment (abfd, pltoff, 4))
2082 1.1 christos {
2083 1.1 christos BFD_ASSERT (0);
2084 1.1 christos return NULL;
2085 1.1 christos }
2086 1.1 christos
2087 1.1 christos ia64_info->pltoff_sec = pltoff;
2088 1.1 christos }
2089 1.1 christos
2090 1.1 christos return pltoff;
2091 1.1 christos }
2092 1.1 christos
2093 1.1 christos static asection *
2094 1.1 christos get_reloc_section (bfd *abfd,
2095 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info,
2096 1.1 christos asection *sec, bfd_boolean create)
2097 1.1 christos {
2098 1.1 christos const char *srel_name;
2099 1.1 christos asection *srel;
2100 1.1 christos bfd *dynobj;
2101 1.1 christos
2102 1.1 christos srel_name = (bfd_elf_string_from_elf_section
2103 1.1 christos (abfd, elf_elfheader(abfd)->e_shstrndx,
2104 1.1 christos _bfd_elf_single_rel_hdr (sec)->sh_name));
2105 1.1 christos if (srel_name == NULL)
2106 1.1 christos return NULL;
2107 1.1 christos
2108 1.1 christos dynobj = ia64_info->root.dynobj;
2109 1.1 christos if (!dynobj)
2110 1.1 christos ia64_info->root.dynobj = dynobj = abfd;
2111 1.1 christos
2112 1.1 christos srel = bfd_get_linker_section (dynobj, srel_name);
2113 1.1 christos if (srel == NULL && create)
2114 1.1 christos {
2115 1.1 christos srel = bfd_make_section_anyway_with_flags (dynobj, srel_name,
2116 1.1 christos (SEC_ALLOC | SEC_LOAD
2117 1.1 christos | SEC_HAS_CONTENTS
2118 1.1 christos | SEC_IN_MEMORY
2119 1.1 christos | SEC_LINKER_CREATED
2120 1.1 christos | SEC_READONLY));
2121 1.1 christos if (srel == NULL
2122 1.1 christos || !bfd_set_section_alignment (dynobj, srel,
2123 1.1 christos LOG_SECTION_ALIGN))
2124 1.1 christos return NULL;
2125 1.1 christos }
2126 1.1 christos
2127 1.1 christos return srel;
2128 1.1 christos }
2129 1.1 christos
2130 1.1 christos static bfd_boolean
2131 1.1 christos count_dyn_reloc (bfd *abfd, struct elfNN_ia64_dyn_sym_info *dyn_i,
2132 1.1 christos asection *srel, int type, bfd_boolean reltext)
2133 1.1 christos {
2134 1.1 christos struct elfNN_ia64_dyn_reloc_entry *rent;
2135 1.1 christos
2136 1.1 christos for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
2137 1.1 christos if (rent->srel == srel && rent->type == type)
2138 1.1 christos break;
2139 1.1 christos
2140 1.1 christos if (!rent)
2141 1.1 christos {
2142 1.1 christos rent = ((struct elfNN_ia64_dyn_reloc_entry *)
2143 1.1 christos bfd_alloc (abfd, (bfd_size_type) sizeof (*rent)));
2144 1.1 christos if (!rent)
2145 1.1 christos return FALSE;
2146 1.1 christos
2147 1.1 christos rent->next = dyn_i->reloc_entries;
2148 1.1 christos rent->srel = srel;
2149 1.1 christos rent->type = type;
2150 1.1 christos rent->count = 0;
2151 1.1 christos dyn_i->reloc_entries = rent;
2152 1.1 christos }
2153 1.1 christos rent->reltext = reltext;
2154 1.1 christos rent->count++;
2155 1.1 christos
2156 1.1 christos return TRUE;
2157 1.1 christos }
2158 1.1 christos
2159 1.1 christos static bfd_boolean
2160 1.1 christos elfNN_ia64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2161 1.1 christos asection *sec,
2162 1.1 christos const Elf_Internal_Rela *relocs)
2163 1.1 christos {
2164 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
2165 1.1 christos const Elf_Internal_Rela *relend;
2166 1.1 christos Elf_Internal_Shdr *symtab_hdr;
2167 1.1 christos const Elf_Internal_Rela *rel;
2168 1.1 christos asection *got, *fptr, *srel, *pltoff;
2169 1.1 christos enum {
2170 1.1 christos NEED_GOT = 1,
2171 1.1 christos NEED_GOTX = 2,
2172 1.1 christos NEED_FPTR = 4,
2173 1.1 christos NEED_PLTOFF = 8,
2174 1.1 christos NEED_MIN_PLT = 16,
2175 1.1 christos NEED_FULL_PLT = 32,
2176 1.1 christos NEED_DYNREL = 64,
2177 1.1 christos NEED_LTOFF_FPTR = 128,
2178 1.1 christos NEED_TPREL = 256,
2179 1.1 christos NEED_DTPMOD = 512,
2180 1.1 christos NEED_DTPREL = 1024
2181 1.1.1.2 christos };
2182 1.1 christos int need_entry;
2183 1.1 christos struct elf_link_hash_entry *h;
2184 1.1 christos unsigned long r_symndx;
2185 1.1 christos bfd_boolean maybe_dynamic;
2186 1.1 christos
2187 1.1 christos if (bfd_link_relocatable (info))
2188 1.1 christos return TRUE;
2189 1.1 christos
2190 1.1 christos symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2191 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
2192 1.1 christos if (ia64_info == NULL)
2193 1.1 christos return FALSE;
2194 1.1 christos
2195 1.1 christos got = fptr = srel = pltoff = NULL;
2196 1.1 christos
2197 1.1 christos relend = relocs + sec->reloc_count;
2198 1.1 christos
2199 1.1 christos /* We scan relocations first to create dynamic relocation arrays. We
2200 1.1 christos modified get_dyn_sym_info to allow fast insertion and support fast
2201 1.1 christos lookup in the next loop. */
2202 1.1 christos for (rel = relocs; rel < relend; ++rel)
2203 1.1 christos {
2204 1.1 christos r_symndx = ELFNN_R_SYM (rel->r_info);
2205 1.1 christos if (r_symndx >= symtab_hdr->sh_info)
2206 1.1 christos {
2207 1.1 christos long indx = r_symndx - symtab_hdr->sh_info;
2208 1.1 christos h = elf_sym_hashes (abfd)[indx];
2209 1.1 christos while (h->root.type == bfd_link_hash_indirect
2210 1.1.1.4 christos || h->root.type == bfd_link_hash_warning)
2211 1.1.1.4 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
2212 1.1.1.4 christos }
2213 1.1 christos else
2214 1.1 christos h = NULL;
2215 1.1 christos
2216 1.1 christos if (h && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2217 1.1.1.2 christos continue;
2218 1.1 christos
2219 1.1 christos /* We can only get preliminary data on whether a symbol is
2220 1.1 christos locally or externally defined, as not all of the input files
2221 1.1 christos have yet been processed. Do something with what we know, as
2222 1.1 christos this may help reduce memory usage and processing time later. */
2223 1.1 christos maybe_dynamic = (h && ((!bfd_link_executable (info)
2224 1.1 christos && (!SYMBOLIC_BIND (info, h)
2225 1.1 christos || info->unresolved_syms_in_shared_libs == RM_IGNORE))
2226 1.1 christos || !h->def_regular
2227 1.1 christos || h->root.type == bfd_link_hash_defweak));
2228 1.1.1.2 christos
2229 1.1 christos need_entry = 0;
2230 1.1 christos switch (ELFNN_R_TYPE (rel->r_info))
2231 1.1 christos {
2232 1.1 christos case R_IA64_TPREL64MSB:
2233 1.1 christos case R_IA64_TPREL64LSB:
2234 1.1.1.2 christos if (bfd_link_pic (info) || maybe_dynamic)
2235 1.1 christos need_entry = NEED_DYNREL;
2236 1.1 christos break;
2237 1.1 christos
2238 1.1 christos case R_IA64_LTOFF_TPREL22:
2239 1.1 christos need_entry = NEED_TPREL;
2240 1.1 christos if (bfd_link_pic (info))
2241 1.1 christos info->flags |= DF_STATIC_TLS;
2242 1.1.1.2 christos break;
2243 1.1 christos
2244 1.1 christos case R_IA64_DTPREL32MSB:
2245 1.1 christos case R_IA64_DTPREL32LSB:
2246 1.1 christos case R_IA64_DTPREL64MSB:
2247 1.1 christos case R_IA64_DTPREL64LSB:
2248 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2249 1.1 christos need_entry = NEED_DYNREL;
2250 1.1 christos break;
2251 1.1 christos
2252 1.1.1.2 christos case R_IA64_LTOFF_DTPREL22:
2253 1.1 christos need_entry = NEED_DTPREL;
2254 1.1 christos break;
2255 1.1 christos
2256 1.1 christos case R_IA64_DTPMOD64MSB:
2257 1.1 christos case R_IA64_DTPMOD64LSB:
2258 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2259 1.1 christos need_entry = NEED_DYNREL;
2260 1.1 christos break;
2261 1.1 christos
2262 1.1 christos case R_IA64_LTOFF_DTPMOD22:
2263 1.1 christos need_entry = NEED_DTPMOD;
2264 1.1 christos break;
2265 1.1 christos
2266 1.1 christos case R_IA64_LTOFF_FPTR22:
2267 1.1 christos case R_IA64_LTOFF_FPTR64I:
2268 1.1 christos case R_IA64_LTOFF_FPTR32MSB:
2269 1.1 christos case R_IA64_LTOFF_FPTR32LSB:
2270 1.1 christos case R_IA64_LTOFF_FPTR64MSB:
2271 1.1 christos case R_IA64_LTOFF_FPTR64LSB:
2272 1.1 christos need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR;
2273 1.1 christos break;
2274 1.1.1.2 christos
2275 1.1 christos case R_IA64_FPTR64I:
2276 1.1 christos case R_IA64_FPTR32MSB:
2277 1.1 christos case R_IA64_FPTR32LSB:
2278 1.1 christos case R_IA64_FPTR64MSB:
2279 1.1 christos case R_IA64_FPTR64LSB:
2280 1.1 christos if (bfd_link_pic (info) || h)
2281 1.1 christos need_entry = NEED_FPTR | NEED_DYNREL;
2282 1.1 christos else
2283 1.1 christos need_entry = NEED_FPTR;
2284 1.1 christos break;
2285 1.1 christos
2286 1.1 christos case R_IA64_LTOFF22:
2287 1.1 christos case R_IA64_LTOFF64I:
2288 1.1 christos need_entry = NEED_GOT;
2289 1.1 christos break;
2290 1.1 christos
2291 1.1 christos case R_IA64_LTOFF22X:
2292 1.1 christos need_entry = NEED_GOTX;
2293 1.1 christos break;
2294 1.1 christos
2295 1.1 christos case R_IA64_PLTOFF22:
2296 1.1 christos case R_IA64_PLTOFF64I:
2297 1.1 christos case R_IA64_PLTOFF64MSB:
2298 1.1 christos case R_IA64_PLTOFF64LSB:
2299 1.1 christos need_entry = NEED_PLTOFF;
2300 1.1 christos if (h)
2301 1.1 christos {
2302 1.1 christos if (maybe_dynamic)
2303 1.1 christos need_entry |= NEED_MIN_PLT;
2304 1.1 christos }
2305 1.1 christos else
2306 1.1 christos {
2307 1.1 christos (*info->callbacks->warning)
2308 1.1.1.4 christos (info, _("@pltoff reloc against local symbol"), 0,
2309 1.1 christos abfd, 0, (bfd_vma) 0);
2310 1.1 christos }
2311 1.1 christos break;
2312 1.1 christos
2313 1.1 christos case R_IA64_PCREL21B:
2314 1.1 christos case R_IA64_PCREL60B:
2315 1.1 christos /* Depending on where this symbol is defined, we may or may not
2316 1.1 christos need a full plt entry. Only skip if we know we'll not need
2317 1.1 christos the entry -- static or symbolic, and the symbol definition
2318 1.1 christos has already been seen. */
2319 1.1 christos if (maybe_dynamic && rel->r_addend == 0)
2320 1.1 christos need_entry = NEED_FULL_PLT;
2321 1.1 christos break;
2322 1.1 christos
2323 1.1 christos case R_IA64_IMM14:
2324 1.1 christos case R_IA64_IMM22:
2325 1.1.1.2 christos case R_IA64_IMM64:
2326 1.1 christos case R_IA64_DIR32MSB:
2327 1.1 christos case R_IA64_DIR32LSB:
2328 1.1 christos case R_IA64_DIR64MSB:
2329 1.1 christos case R_IA64_DIR64LSB:
2330 1.1 christos /* Shared objects will always need at least a REL relocation. */
2331 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2332 1.1.1.2 christos need_entry = NEED_DYNREL;
2333 1.1 christos break;
2334 1.1 christos
2335 1.1 christos case R_IA64_IPLTMSB:
2336 1.1 christos case R_IA64_IPLTLSB:
2337 1.1 christos /* Shared objects will always need at least a REL relocation. */
2338 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2339 1.1 christos need_entry = NEED_DYNREL;
2340 1.1 christos break;
2341 1.1 christos
2342 1.1 christos case R_IA64_PCREL22:
2343 1.1 christos case R_IA64_PCREL64I:
2344 1.1 christos case R_IA64_PCREL32MSB:
2345 1.1 christos case R_IA64_PCREL32LSB:
2346 1.1 christos case R_IA64_PCREL64MSB:
2347 1.1 christos case R_IA64_PCREL64LSB:
2348 1.1 christos if (maybe_dynamic)
2349 1.1 christos need_entry = NEED_DYNREL;
2350 1.1 christos break;
2351 1.1 christos }
2352 1.1 christos
2353 1.1 christos if (!need_entry)
2354 1.1 christos continue;
2355 1.1 christos
2356 1.1 christos if ((need_entry & NEED_FPTR) != 0
2357 1.1 christos && rel->r_addend)
2358 1.1 christos {
2359 1.1 christos (*info->callbacks->warning)
2360 1.1 christos (info, _("non-zero addend in @fptr reloc"), 0,
2361 1.1 christos abfd, 0, (bfd_vma) 0);
2362 1.1 christos }
2363 1.1 christos
2364 1.1 christos if (get_dyn_sym_info (ia64_info, h, abfd, rel, TRUE) == NULL)
2365 1.1 christos return FALSE;
2366 1.1 christos }
2367 1.1 christos
2368 1.1 christos /* Now, we only do lookup without insertion, which is very fast
2369 1.1 christos with the modified get_dyn_sym_info. */
2370 1.1 christos for (rel = relocs; rel < relend; ++rel)
2371 1.1 christos {
2372 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
2373 1.1 christos int dynrel_type = R_IA64_NONE;
2374 1.1 christos
2375 1.1 christos r_symndx = ELFNN_R_SYM (rel->r_info);
2376 1.1 christos if (r_symndx >= symtab_hdr->sh_info)
2377 1.1 christos {
2378 1.1 christos /* We're dealing with a global symbol -- find its hash entry
2379 1.1 christos and mark it as being referenced. */
2380 1.1.1.2 christos long indx = r_symndx - symtab_hdr->sh_info;
2381 1.1.1.2 christos h = elf_sym_hashes (abfd)[indx];
2382 1.1 christos while (h->root.type == bfd_link_hash_indirect
2383 1.1 christos || h->root.type == bfd_link_hash_warning)
2384 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
2385 1.1 christos
2386 1.1 christos /* PR15323, ref flags aren't set for references in the same
2387 1.1.1.4 christos object. */
2388 1.1.1.4 christos h->ref_regular = 1;
2389 1.1.1.4 christos }
2390 1.1 christos else
2391 1.1 christos h = NULL;
2392 1.1 christos
2393 1.1 christos if (h && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2394 1.1.1.2 christos continue;
2395 1.1 christos
2396 1.1 christos /* We can only get preliminary data on whether a symbol is
2397 1.1 christos locally or externally defined, as not all of the input files
2398 1.1 christos have yet been processed. Do something with what we know, as
2399 1.1 christos this may help reduce memory usage and processing time later. */
2400 1.1 christos maybe_dynamic = (h && ((!bfd_link_executable (info)
2401 1.1 christos && (!SYMBOLIC_BIND (info, h)
2402 1.1 christos || info->unresolved_syms_in_shared_libs == RM_IGNORE))
2403 1.1 christos || !h->def_regular
2404 1.1 christos || h->root.type == bfd_link_hash_defweak));
2405 1.1.1.2 christos
2406 1.1 christos need_entry = 0;
2407 1.1 christos switch (ELFNN_R_TYPE (rel->r_info))
2408 1.1.1.2 christos {
2409 1.1 christos case R_IA64_TPREL64MSB:
2410 1.1 christos case R_IA64_TPREL64LSB:
2411 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2412 1.1 christos need_entry = NEED_DYNREL;
2413 1.1 christos dynrel_type = R_IA64_TPREL64LSB;
2414 1.1.1.2 christos if (bfd_link_pic (info))
2415 1.1 christos info->flags |= DF_STATIC_TLS;
2416 1.1 christos break;
2417 1.1 christos
2418 1.1 christos case R_IA64_LTOFF_TPREL22:
2419 1.1 christos need_entry = NEED_TPREL;
2420 1.1 christos if (bfd_link_pic (info))
2421 1.1 christos info->flags |= DF_STATIC_TLS;
2422 1.1.1.2 christos break;
2423 1.1 christos
2424 1.1 christos case R_IA64_DTPREL32MSB:
2425 1.1 christos case R_IA64_DTPREL32LSB:
2426 1.1 christos case R_IA64_DTPREL64MSB:
2427 1.1 christos case R_IA64_DTPREL64LSB:
2428 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2429 1.1 christos need_entry = NEED_DYNREL;
2430 1.1 christos dynrel_type = R_IA64_DTPRELNNLSB;
2431 1.1 christos break;
2432 1.1 christos
2433 1.1.1.2 christos case R_IA64_LTOFF_DTPREL22:
2434 1.1 christos need_entry = NEED_DTPREL;
2435 1.1 christos break;
2436 1.1 christos
2437 1.1 christos case R_IA64_DTPMOD64MSB:
2438 1.1 christos case R_IA64_DTPMOD64LSB:
2439 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2440 1.1 christos need_entry = NEED_DYNREL;
2441 1.1 christos dynrel_type = R_IA64_DTPMOD64LSB;
2442 1.1 christos break;
2443 1.1 christos
2444 1.1 christos case R_IA64_LTOFF_DTPMOD22:
2445 1.1 christos need_entry = NEED_DTPMOD;
2446 1.1 christos break;
2447 1.1 christos
2448 1.1 christos case R_IA64_LTOFF_FPTR22:
2449 1.1 christos case R_IA64_LTOFF_FPTR64I:
2450 1.1 christos case R_IA64_LTOFF_FPTR32MSB:
2451 1.1 christos case R_IA64_LTOFF_FPTR32LSB:
2452 1.1 christos case R_IA64_LTOFF_FPTR64MSB:
2453 1.1 christos case R_IA64_LTOFF_FPTR64LSB:
2454 1.1 christos need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR;
2455 1.1 christos break;
2456 1.1.1.2 christos
2457 1.1 christos case R_IA64_FPTR64I:
2458 1.1 christos case R_IA64_FPTR32MSB:
2459 1.1 christos case R_IA64_FPTR32LSB:
2460 1.1 christos case R_IA64_FPTR64MSB:
2461 1.1 christos case R_IA64_FPTR64LSB:
2462 1.1 christos if (bfd_link_pic (info) || h)
2463 1.1 christos need_entry = NEED_FPTR | NEED_DYNREL;
2464 1.1 christos else
2465 1.1 christos need_entry = NEED_FPTR;
2466 1.1 christos dynrel_type = R_IA64_FPTRNNLSB;
2467 1.1 christos break;
2468 1.1 christos
2469 1.1 christos case R_IA64_LTOFF22:
2470 1.1 christos case R_IA64_LTOFF64I:
2471 1.1 christos need_entry = NEED_GOT;
2472 1.1 christos break;
2473 1.1 christos
2474 1.1 christos case R_IA64_LTOFF22X:
2475 1.1 christos need_entry = NEED_GOTX;
2476 1.1 christos break;
2477 1.1 christos
2478 1.1 christos case R_IA64_PLTOFF22:
2479 1.1 christos case R_IA64_PLTOFF64I:
2480 1.1 christos case R_IA64_PLTOFF64MSB:
2481 1.1 christos case R_IA64_PLTOFF64LSB:
2482 1.1 christos need_entry = NEED_PLTOFF;
2483 1.1 christos if (h)
2484 1.1 christos {
2485 1.1.1.4 christos if (maybe_dynamic)
2486 1.1 christos need_entry |= NEED_MIN_PLT;
2487 1.1 christos }
2488 1.1 christos break;
2489 1.1 christos
2490 1.1 christos case R_IA64_PCREL21B:
2491 1.1 christos case R_IA64_PCREL60B:
2492 1.1 christos /* Depending on where this symbol is defined, we may or may not
2493 1.1 christos need a full plt entry. Only skip if we know we'll not need
2494 1.1 christos the entry -- static or symbolic, and the symbol definition
2495 1.1 christos has already been seen. */
2496 1.1 christos if (maybe_dynamic && rel->r_addend == 0)
2497 1.1 christos need_entry = NEED_FULL_PLT;
2498 1.1 christos break;
2499 1.1 christos
2500 1.1 christos case R_IA64_IMM14:
2501 1.1 christos case R_IA64_IMM22:
2502 1.1.1.2 christos case R_IA64_IMM64:
2503 1.1 christos case R_IA64_DIR32MSB:
2504 1.1 christos case R_IA64_DIR32LSB:
2505 1.1 christos case R_IA64_DIR64MSB:
2506 1.1 christos case R_IA64_DIR64LSB:
2507 1.1 christos /* Shared objects will always need at least a REL relocation. */
2508 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2509 1.1 christos need_entry = NEED_DYNREL;
2510 1.1.1.2 christos dynrel_type = R_IA64_DIRNNLSB;
2511 1.1 christos break;
2512 1.1 christos
2513 1.1 christos case R_IA64_IPLTMSB:
2514 1.1 christos case R_IA64_IPLTLSB:
2515 1.1 christos /* Shared objects will always need at least a REL relocation. */
2516 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2517 1.1 christos need_entry = NEED_DYNREL;
2518 1.1 christos dynrel_type = R_IA64_IPLTLSB;
2519 1.1 christos break;
2520 1.1 christos
2521 1.1 christos case R_IA64_PCREL22:
2522 1.1 christos case R_IA64_PCREL64I:
2523 1.1 christos case R_IA64_PCREL32MSB:
2524 1.1 christos case R_IA64_PCREL32LSB:
2525 1.1 christos case R_IA64_PCREL64MSB:
2526 1.1 christos case R_IA64_PCREL64LSB:
2527 1.1 christos if (maybe_dynamic)
2528 1.1 christos need_entry = NEED_DYNREL;
2529 1.1 christos dynrel_type = R_IA64_PCRELNNLSB;
2530 1.1 christos break;
2531 1.1 christos }
2532 1.1 christos
2533 1.1 christos if (!need_entry)
2534 1.1 christos continue;
2535 1.1 christos
2536 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, abfd, rel, FALSE);
2537 1.1 christos
2538 1.1 christos /* Record whether or not this is a local symbol. */
2539 1.1 christos dyn_i->h = h;
2540 1.1 christos
2541 1.1 christos /* Create what's needed. */
2542 1.1 christos if (need_entry & (NEED_GOT | NEED_GOTX | NEED_TPREL
2543 1.1 christos | NEED_DTPMOD | NEED_DTPREL))
2544 1.1 christos {
2545 1.1 christos if (!got)
2546 1.1 christos {
2547 1.1 christos got = get_got (abfd, info, ia64_info);
2548 1.1 christos if (!got)
2549 1.1 christos return FALSE;
2550 1.1 christos }
2551 1.1 christos if (need_entry & NEED_GOT)
2552 1.1 christos dyn_i->want_got = 1;
2553 1.1 christos if (need_entry & NEED_GOTX)
2554 1.1 christos dyn_i->want_gotx = 1;
2555 1.1 christos if (need_entry & NEED_TPREL)
2556 1.1 christos dyn_i->want_tprel = 1;
2557 1.1 christos if (need_entry & NEED_DTPMOD)
2558 1.1 christos dyn_i->want_dtpmod = 1;
2559 1.1 christos if (need_entry & NEED_DTPREL)
2560 1.1 christos dyn_i->want_dtprel = 1;
2561 1.1 christos }
2562 1.1 christos if (need_entry & NEED_FPTR)
2563 1.1 christos {
2564 1.1 christos if (!fptr)
2565 1.1 christos {
2566 1.1 christos fptr = get_fptr (abfd, info, ia64_info);
2567 1.1 christos if (!fptr)
2568 1.1.1.2 christos return FALSE;
2569 1.1 christos }
2570 1.1 christos
2571 1.1 christos /* FPTRs for shared libraries are allocated by the dynamic
2572 1.1 christos linker. Make sure this local symbol will appear in the
2573 1.1 christos dynamic symbol table. */
2574 1.1 christos if (!h && bfd_link_pic (info))
2575 1.1 christos {
2576 1.1 christos if (! (bfd_elf_link_record_local_dynamic_symbol
2577 1.1 christos (info, abfd, (long) r_symndx)))
2578 1.1 christos return FALSE;
2579 1.1 christos }
2580 1.1 christos
2581 1.1.1.4 christos dyn_i->want_fptr = 1;
2582 1.1 christos }
2583 1.1 christos if (need_entry & NEED_LTOFF_FPTR)
2584 1.1 christos dyn_i->want_ltoff_fptr = 1;
2585 1.1 christos if (need_entry & (NEED_MIN_PLT | NEED_FULL_PLT))
2586 1.1 christos {
2587 1.1 christos if (!ia64_info->root.dynobj)
2588 1.1 christos ia64_info->root.dynobj = abfd;
2589 1.1 christos h->needs_plt = 1;
2590 1.1 christos dyn_i->want_plt = 1;
2591 1.1 christos }
2592 1.1 christos if (need_entry & NEED_FULL_PLT)
2593 1.1 christos dyn_i->want_plt2 = 1;
2594 1.1 christos if (need_entry & NEED_PLTOFF)
2595 1.1 christos {
2596 1.1 christos /* This is needed here, in case @pltoff is used in a non-shared
2597 1.1 christos link. */
2598 1.1 christos if (!pltoff)
2599 1.1 christos {
2600 1.1 christos pltoff = get_pltoff (abfd, info, ia64_info);
2601 1.1 christos if (!pltoff)
2602 1.1 christos return FALSE;
2603 1.1 christos }
2604 1.1 christos
2605 1.1 christos dyn_i->want_pltoff = 1;
2606 1.1 christos }
2607 1.1 christos if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC))
2608 1.1 christos {
2609 1.1 christos if (!srel)
2610 1.1 christos {
2611 1.1 christos srel = get_reloc_section (abfd, ia64_info, sec, TRUE);
2612 1.1 christos if (!srel)
2613 1.1 christos return FALSE;
2614 1.1 christos }
2615 1.1 christos if (!count_dyn_reloc (abfd, dyn_i, srel, dynrel_type,
2616 1.1 christos (sec->flags & SEC_READONLY) != 0))
2617 1.1 christos return FALSE;
2618 1.1 christos }
2619 1.1 christos }
2620 1.1 christos
2621 1.1 christos return TRUE;
2622 1.1 christos }
2623 1.1 christos
2624 1.1 christos /* For cleanliness, and potentially faster dynamic loading, allocate
2625 1.1 christos external GOT entries first. */
2626 1.1 christos
2627 1.1 christos static bfd_boolean
2628 1.1 christos allocate_global_data_got (struct elfNN_ia64_dyn_sym_info *dyn_i,
2629 1.1 christos void * data)
2630 1.1 christos {
2631 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2632 1.1 christos
2633 1.1 christos if ((dyn_i->want_got || dyn_i->want_gotx)
2634 1.1 christos && ! dyn_i->want_fptr
2635 1.1 christos && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2636 1.1 christos {
2637 1.1 christos dyn_i->got_offset = x->ofs;
2638 1.1 christos x->ofs += 8;
2639 1.1 christos }
2640 1.1 christos if (dyn_i->want_tprel)
2641 1.1 christos {
2642 1.1 christos dyn_i->tprel_offset = x->ofs;
2643 1.1 christos x->ofs += 8;
2644 1.1 christos }
2645 1.1 christos if (dyn_i->want_dtpmod)
2646 1.1 christos {
2647 1.1 christos if (elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2648 1.1 christos {
2649 1.1 christos dyn_i->dtpmod_offset = x->ofs;
2650 1.1 christos x->ofs += 8;
2651 1.1 christos }
2652 1.1 christos else
2653 1.1 christos {
2654 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
2655 1.1 christos
2656 1.1 christos ia64_info = elfNN_ia64_hash_table (x->info);
2657 1.1 christos if (ia64_info == NULL)
2658 1.1 christos return FALSE;
2659 1.1 christos
2660 1.1 christos if (ia64_info->self_dtpmod_offset == (bfd_vma) -1)
2661 1.1 christos {
2662 1.1 christos ia64_info->self_dtpmod_offset = x->ofs;
2663 1.1 christos x->ofs += 8;
2664 1.1 christos }
2665 1.1 christos dyn_i->dtpmod_offset = ia64_info->self_dtpmod_offset;
2666 1.1 christos }
2667 1.1 christos }
2668 1.1 christos if (dyn_i->want_dtprel)
2669 1.1 christos {
2670 1.1 christos dyn_i->dtprel_offset = x->ofs;
2671 1.1 christos x->ofs += 8;
2672 1.1 christos }
2673 1.1 christos return TRUE;
2674 1.1 christos }
2675 1.1 christos
2676 1.1 christos /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2677 1.1 christos
2678 1.1 christos static bfd_boolean
2679 1.1 christos allocate_global_fptr_got (struct elfNN_ia64_dyn_sym_info *dyn_i,
2680 1.1 christos void * data)
2681 1.1 christos {
2682 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2683 1.1 christos
2684 1.1 christos if (dyn_i->want_got
2685 1.1 christos && dyn_i->want_fptr
2686 1.1 christos && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, R_IA64_FPTRNNLSB))
2687 1.1 christos {
2688 1.1 christos dyn_i->got_offset = x->ofs;
2689 1.1 christos x->ofs += 8;
2690 1.1 christos }
2691 1.1 christos return TRUE;
2692 1.1 christos }
2693 1.1 christos
2694 1.1 christos /* Lastly, allocate all the GOT entries for local data. */
2695 1.1 christos
2696 1.1 christos static bfd_boolean
2697 1.1 christos allocate_local_got (struct elfNN_ia64_dyn_sym_info *dyn_i,
2698 1.1 christos void * data)
2699 1.1 christos {
2700 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2701 1.1 christos
2702 1.1 christos if ((dyn_i->want_got || dyn_i->want_gotx)
2703 1.1 christos && !elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2704 1.1 christos {
2705 1.1 christos dyn_i->got_offset = x->ofs;
2706 1.1 christos x->ofs += 8;
2707 1.1 christos }
2708 1.1 christos return TRUE;
2709 1.1 christos }
2710 1.1 christos
2711 1.1 christos /* Search for the index of a global symbol in it's defining object file. */
2712 1.1 christos
2713 1.1 christos static long
2714 1.1 christos global_sym_index (struct elf_link_hash_entry *h)
2715 1.1 christos {
2716 1.1 christos struct elf_link_hash_entry **p;
2717 1.1 christos bfd *obj;
2718 1.1 christos
2719 1.1 christos BFD_ASSERT (h->root.type == bfd_link_hash_defined
2720 1.1 christos || h->root.type == bfd_link_hash_defweak);
2721 1.1 christos
2722 1.1 christos obj = h->root.u.def.section->owner;
2723 1.1 christos for (p = elf_sym_hashes (obj); *p != h; ++p)
2724 1.1 christos continue;
2725 1.1 christos
2726 1.1 christos return p - elf_sym_hashes (obj) + elf_tdata (obj)->symtab_hdr.sh_info;
2727 1.1 christos }
2728 1.1 christos
2729 1.1 christos /* Allocate function descriptors. We can do these for every function
2730 1.1 christos in a main executable that is not exported. */
2731 1.1 christos
2732 1.1 christos static bfd_boolean
2733 1.1 christos allocate_fptr (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data)
2734 1.1 christos {
2735 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2736 1.1 christos
2737 1.1 christos if (dyn_i->want_fptr)
2738 1.1 christos {
2739 1.1 christos struct elf_link_hash_entry *h = dyn_i->h;
2740 1.1.1.2 christos
2741 1.1 christos if (h)
2742 1.1.1.4 christos while (h->root.type == bfd_link_hash_indirect
2743 1.1.1.4 christos || h->root.type == bfd_link_hash_warning)
2744 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
2745 1.1 christos
2746 1.1 christos if (!bfd_link_executable (x->info)
2747 1.1 christos && (!h
2748 1.1 christos || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2749 1.1 christos && !UNDEFWEAK_NO_DYNAMIC_RELOC (x->info, h))
2750 1.1 christos || (h->root.type != bfd_link_hash_undefweak
2751 1.1 christos && h->root.type != bfd_link_hash_undefined)))
2752 1.1 christos {
2753 1.1 christos if (h && h->dynindx == -1)
2754 1.1 christos {
2755 1.1 christos BFD_ASSERT ((h->root.type == bfd_link_hash_defined)
2756 1.1 christos || (h->root.type == bfd_link_hash_defweak));
2757 1.1 christos
2758 1.1 christos if (!bfd_elf_link_record_local_dynamic_symbol
2759 1.1 christos (x->info, h->root.u.def.section->owner,
2760 1.1 christos global_sym_index (h)))
2761 1.1 christos return FALSE;
2762 1.1 christos }
2763 1.1 christos
2764 1.1 christos dyn_i->want_fptr = 0;
2765 1.1 christos }
2766 1.1 christos else if (h == NULL || h->dynindx == -1)
2767 1.1 christos {
2768 1.1 christos dyn_i->fptr_offset = x->ofs;
2769 1.1 christos x->ofs += 16;
2770 1.1 christos }
2771 1.1 christos else
2772 1.1 christos dyn_i->want_fptr = 0;
2773 1.1 christos }
2774 1.1 christos return TRUE;
2775 1.1 christos }
2776 1.1 christos
2777 1.1 christos /* Allocate all the minimal PLT entries. */
2778 1.1 christos
2779 1.1 christos static bfd_boolean
2780 1.1 christos allocate_plt_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2781 1.1 christos void * data)
2782 1.1 christos {
2783 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2784 1.1 christos
2785 1.1 christos if (dyn_i->want_plt)
2786 1.1 christos {
2787 1.1 christos struct elf_link_hash_entry *h = dyn_i->h;
2788 1.1 christos
2789 1.1 christos if (h)
2790 1.1 christos while (h->root.type == bfd_link_hash_indirect
2791 1.1 christos || h->root.type == bfd_link_hash_warning)
2792 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
2793 1.1 christos
2794 1.1 christos /* ??? Versioned symbols seem to lose NEEDS_PLT. */
2795 1.1 christos if (elfNN_ia64_dynamic_symbol_p (h, x->info, 0))
2796 1.1 christos {
2797 1.1 christos bfd_size_type offset = x->ofs;
2798 1.1 christos if (offset == 0)
2799 1.1 christos offset = PLT_HEADER_SIZE;
2800 1.1 christos dyn_i->plt_offset = offset;
2801 1.1 christos x->ofs = offset + PLT_MIN_ENTRY_SIZE;
2802 1.1 christos
2803 1.1 christos dyn_i->want_pltoff = 1;
2804 1.1 christos }
2805 1.1 christos else
2806 1.1 christos {
2807 1.1 christos dyn_i->want_plt = 0;
2808 1.1 christos dyn_i->want_plt2 = 0;
2809 1.1 christos }
2810 1.1 christos }
2811 1.1 christos return TRUE;
2812 1.1 christos }
2813 1.1 christos
2814 1.1 christos /* Allocate all the full PLT entries. */
2815 1.1 christos
2816 1.1 christos static bfd_boolean
2817 1.1 christos allocate_plt2_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2818 1.1 christos void * data)
2819 1.1 christos {
2820 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2821 1.1 christos
2822 1.1 christos if (dyn_i->want_plt2)
2823 1.1 christos {
2824 1.1 christos struct elf_link_hash_entry *h = dyn_i->h;
2825 1.1 christos bfd_size_type ofs = x->ofs;
2826 1.1 christos
2827 1.1 christos dyn_i->plt2_offset = ofs;
2828 1.1 christos x->ofs = ofs + PLT_FULL_ENTRY_SIZE;
2829 1.1 christos
2830 1.1 christos while (h->root.type == bfd_link_hash_indirect
2831 1.1 christos || h->root.type == bfd_link_hash_warning)
2832 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
2833 1.1 christos dyn_i->h->plt.offset = ofs;
2834 1.1 christos }
2835 1.1 christos return TRUE;
2836 1.1 christos }
2837 1.1 christos
2838 1.1 christos /* Allocate all the PLTOFF entries requested by relocations and
2839 1.1 christos plt entries. We can't share space with allocated FPTR entries,
2840 1.1 christos because the latter are not necessarily addressable by the GP.
2841 1.1 christos ??? Relaxation might be able to determine that they are. */
2842 1.1 christos
2843 1.1 christos static bfd_boolean
2844 1.1 christos allocate_pltoff_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2845 1.1 christos void * data)
2846 1.1 christos {
2847 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2848 1.1 christos
2849 1.1 christos if (dyn_i->want_pltoff)
2850 1.1 christos {
2851 1.1 christos dyn_i->pltoff_offset = x->ofs;
2852 1.1 christos x->ofs += 16;
2853 1.1 christos }
2854 1.1 christos return TRUE;
2855 1.1 christos }
2856 1.1 christos
2857 1.1 christos /* Allocate dynamic relocations for those symbols that turned out
2858 1.1 christos to be dynamic. */
2859 1.1 christos
2860 1.1 christos static bfd_boolean
2861 1.1 christos allocate_dynrel_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2862 1.1 christos void * data)
2863 1.1 christos {
2864 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2865 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
2866 1.1 christos struct elfNN_ia64_dyn_reloc_entry *rent;
2867 1.1 christos bfd_boolean dynamic_symbol, shared, resolved_zero;
2868 1.1 christos
2869 1.1 christos ia64_info = elfNN_ia64_hash_table (x->info);
2870 1.1.1.2 christos if (ia64_info == NULL)
2871 1.1 christos return FALSE;
2872 1.1.1.4 christos
2873 1.1.1.4 christos /* Note that this can't be used in relation to FPTR relocs below. */
2874 1.1 christos dynamic_symbol = elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0);
2875 1.1 christos
2876 1.1 christos shared = bfd_link_pic (x->info);
2877 1.1 christos resolved_zero = (dyn_i->h
2878 1.1 christos && UNDEFWEAK_NO_DYNAMIC_RELOC (x->info,
2879 1.1 christos dyn_i->h));
2880 1.1 christos
2881 1.1 christos /* Take care of the GOT and PLT relocations. */
2882 1.1 christos
2883 1.1 christos if ((!resolved_zero
2884 1.1 christos && (dynamic_symbol || shared)
2885 1.1.1.2 christos && (dyn_i->want_got || dyn_i->want_gotx))
2886 1.1 christos || (dyn_i->want_ltoff_fptr
2887 1.1 christos && dyn_i->h
2888 1.1 christos && dyn_i->h->dynindx != -1))
2889 1.1 christos {
2890 1.1 christos if (!dyn_i->want_ltoff_fptr
2891 1.1 christos || !bfd_link_pie (x->info)
2892 1.1 christos || dyn_i->h == NULL
2893 1.1 christos || dyn_i->h->root.type != bfd_link_hash_undefweak)
2894 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2895 1.1 christos }
2896 1.1 christos if ((dynamic_symbol || shared) && dyn_i->want_tprel)
2897 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2898 1.1 christos if (dynamic_symbol && dyn_i->want_dtpmod)
2899 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2900 1.1 christos if (dynamic_symbol && dyn_i->want_dtprel)
2901 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2902 1.1 christos
2903 1.1 christos if (x->only_got)
2904 1.1 christos return TRUE;
2905 1.1 christos
2906 1.1 christos if (ia64_info->rel_fptr_sec && dyn_i->want_fptr)
2907 1.1 christos {
2908 1.1 christos if (dyn_i->h == NULL || dyn_i->h->root.type != bfd_link_hash_undefweak)
2909 1.1 christos ia64_info->rel_fptr_sec->size += sizeof (ElfNN_External_Rela);
2910 1.1 christos }
2911 1.1 christos
2912 1.1 christos if (!resolved_zero && dyn_i->want_pltoff)
2913 1.1 christos {
2914 1.1 christos bfd_size_type t = 0;
2915 1.1 christos
2916 1.1 christos /* Dynamic symbols get one IPLT relocation. Local symbols in
2917 1.1 christos shared libraries get two REL relocations. Local symbols in
2918 1.1 christos main applications get nothing. */
2919 1.1 christos if (dynamic_symbol)
2920 1.1 christos t = sizeof (ElfNN_External_Rela);
2921 1.1 christos else if (shared)
2922 1.1 christos t = 2 * sizeof (ElfNN_External_Rela);
2923 1.1 christos
2924 1.1 christos ia64_info->rel_pltoff_sec->size += t;
2925 1.1 christos }
2926 1.1 christos
2927 1.1 christos /* Take care of the normal data relocations. */
2928 1.1 christos
2929 1.1 christos for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
2930 1.1 christos {
2931 1.1 christos int count = rent->count;
2932 1.1 christos
2933 1.1 christos switch (rent->type)
2934 1.1 christos {
2935 1.1.1.2 christos case R_IA64_FPTR32LSB:
2936 1.1 christos case R_IA64_FPTR64LSB:
2937 1.1 christos /* Allocate one iff !want_fptr and not PIE, which by this point
2938 1.1 christos will be true only if we're actually allocating one statically
2939 1.1 christos in the main executable. Position independent executables
2940 1.1 christos need a relative reloc. */
2941 1.1 christos if (dyn_i->want_fptr && !bfd_link_pie (x->info))
2942 1.1 christos continue;
2943 1.1 christos break;
2944 1.1 christos case R_IA64_PCREL32LSB:
2945 1.1 christos case R_IA64_PCREL64LSB:
2946 1.1 christos if (!dynamic_symbol)
2947 1.1 christos continue;
2948 1.1 christos break;
2949 1.1 christos case R_IA64_DIR32LSB:
2950 1.1 christos case R_IA64_DIR64LSB:
2951 1.1 christos if (!dynamic_symbol && !shared)
2952 1.1 christos continue;
2953 1.1 christos break;
2954 1.1 christos case R_IA64_IPLTLSB:
2955 1.1 christos if (!dynamic_symbol && !shared)
2956 1.1 christos continue;
2957 1.1 christos /* Use two REL relocations for IPLT relocations
2958 1.1 christos against local symbols. */
2959 1.1 christos if (!dynamic_symbol)
2960 1.1 christos count *= 2;
2961 1.1 christos break;
2962 1.1 christos case R_IA64_DTPREL32LSB:
2963 1.1 christos case R_IA64_TPREL64LSB:
2964 1.1 christos case R_IA64_DTPREL64LSB:
2965 1.1 christos case R_IA64_DTPMOD64LSB:
2966 1.1 christos break;
2967 1.1 christos default:
2968 1.1 christos abort ();
2969 1.1 christos }
2970 1.1 christos if (rent->reltext)
2971 1.1 christos ia64_info->reltext = 1;
2972 1.1 christos rent->srel->size += sizeof (ElfNN_External_Rela) * count;
2973 1.1 christos }
2974 1.1 christos
2975 1.1 christos return TRUE;
2976 1.1 christos }
2977 1.1 christos
2978 1.1 christos static bfd_boolean
2979 1.1 christos elfNN_ia64_adjust_dynamic_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED,
2980 1.1 christos struct elf_link_hash_entry *h)
2981 1.1 christos {
2982 1.1.1.4 christos /* ??? Undefined symbols with PLT entries should be re-defined
2983 1.1 christos to be the PLT entry. */
2984 1.1.1.4 christos
2985 1.1.1.4 christos /* If this is a weak symbol, and there is a real definition, the
2986 1.1.1.4 christos processor independent code will have arranged for us to see the
2987 1.1.1.4 christos real definition first, and we can just use the same value. */
2988 1.1 christos if (h->is_weakalias)
2989 1.1 christos {
2990 1.1 christos struct elf_link_hash_entry *def = weakdef (h);
2991 1.1 christos BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2992 1.1 christos h->root.u.def.section = def->root.u.def.section;
2993 1.1 christos h->root.u.def.value = def->root.u.def.value;
2994 1.1 christos return TRUE;
2995 1.1 christos }
2996 1.1 christos
2997 1.1 christos /* If this is a reference to a symbol defined by a dynamic object which
2998 1.1 christos is not a function, we might allocate the symbol in our .dynbss section
2999 1.1 christos and allocate a COPY dynamic relocation.
3000 1.1 christos
3001 1.1 christos But IA-64 code is canonically PIC, so as a rule we can avoid this sort
3002 1.1 christos of hackery. */
3003 1.1 christos
3004 1.1 christos return TRUE;
3005 1.1 christos }
3006 1.1 christos
3007 1.1 christos static bfd_boolean
3008 1.1 christos elfNN_ia64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3009 1.1 christos struct bfd_link_info *info)
3010 1.1 christos {
3011 1.1 christos struct elfNN_ia64_allocate_data data;
3012 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3013 1.1 christos asection *sec;
3014 1.1.1.4 christos bfd *dynobj;
3015 1.1 christos bfd_boolean relplt = FALSE;
3016 1.1 christos
3017 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3018 1.1 christos if (ia64_info == NULL)
3019 1.1 christos return FALSE;
3020 1.1 christos dynobj = ia64_info->root.dynobj;
3021 1.1.1.2 christos ia64_info->self_dtpmod_offset = (bfd_vma) -1;
3022 1.1 christos BFD_ASSERT(dynobj != NULL);
3023 1.1 christos data.info = info;
3024 1.1 christos
3025 1.1 christos /* Set the contents of the .interp section to the interpreter. */
3026 1.1 christos if (ia64_info->root.dynamic_sections_created
3027 1.1 christos && bfd_link_executable (info) && !info->nointerp)
3028 1.1 christos {
3029 1.1 christos sec = bfd_get_linker_section (dynobj, ".interp");
3030 1.1 christos BFD_ASSERT (sec != NULL);
3031 1.1 christos sec->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
3032 1.1 christos sec->size = strlen (ELF_DYNAMIC_INTERPRETER) + 1;
3033 1.1 christos }
3034 1.1 christos
3035 1.1 christos /* Allocate the GOT entries. */
3036 1.1 christos
3037 1.1 christos if (ia64_info->root.sgot)
3038 1.1 christos {
3039 1.1 christos data.ofs = 0;
3040 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
3041 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
3042 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
3043 1.1 christos ia64_info->root.sgot->size = data.ofs;
3044 1.1 christos }
3045 1.1 christos
3046 1.1 christos /* Allocate the FPTR entries. */
3047 1.1 christos
3048 1.1 christos if (ia64_info->fptr_sec)
3049 1.1 christos {
3050 1.1 christos data.ofs = 0;
3051 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_fptr, &data);
3052 1.1 christos ia64_info->fptr_sec->size = data.ofs;
3053 1.1 christos }
3054 1.1 christos
3055 1.1 christos /* Now that we've seen all of the input files, we can decide which
3056 1.1 christos symbols need plt entries. Allocate the minimal PLT entries first.
3057 1.1 christos We do this even though dynamic_sections_created may be FALSE, because
3058 1.1 christos this has the side-effect of clearing want_plt and want_plt2. */
3059 1.1 christos
3060 1.1 christos data.ofs = 0;
3061 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt_entries, &data);
3062 1.1 christos
3063 1.1 christos ia64_info->minplt_entries = 0;
3064 1.1 christos if (data.ofs)
3065 1.1 christos {
3066 1.1 christos ia64_info->minplt_entries
3067 1.1 christos = (data.ofs - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
3068 1.1 christos }
3069 1.1 christos
3070 1.1 christos /* Align the pointer for the plt2 entries. */
3071 1.1 christos data.ofs = (data.ofs + 31) & (bfd_vma) -32;
3072 1.1 christos
3073 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt2_entries, &data);
3074 1.1 christos if (data.ofs != 0 || ia64_info->root.dynamic_sections_created)
3075 1.1 christos {
3076 1.1 christos /* FIXME: we always reserve the memory for dynamic linker even if
3077 1.1 christos there are no PLT entries since dynamic linker may assume the
3078 1.1 christos reserved memory always exists. */
3079 1.1 christos
3080 1.1.1.4 christos BFD_ASSERT (ia64_info->root.dynamic_sections_created);
3081 1.1 christos
3082 1.1 christos ia64_info->root.splt->size = data.ofs;
3083 1.1 christos
3084 1.1 christos /* If we've got a .plt, we need some extra memory for the dynamic
3085 1.1 christos linker. We stuff these in .got.plt. */
3086 1.1 christos ia64_info->root.sgotplt->size = 8 * PLT_RESERVED_WORDS;
3087 1.1 christos }
3088 1.1 christos
3089 1.1 christos /* Allocate the PLTOFF entries. */
3090 1.1 christos
3091 1.1 christos if (ia64_info->pltoff_sec)
3092 1.1 christos {
3093 1.1 christos data.ofs = 0;
3094 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_pltoff_entries, &data);
3095 1.1 christos ia64_info->pltoff_sec->size = data.ofs;
3096 1.1 christos }
3097 1.1.1.2 christos
3098 1.1 christos if (ia64_info->root.dynamic_sections_created)
3099 1.1 christos {
3100 1.1 christos /* Allocate space for the dynamic relocations that turned out to be
3101 1.1 christos required. */
3102 1.1 christos
3103 1.1 christos if (bfd_link_pic (info) && ia64_info->self_dtpmod_offset != (bfd_vma) -1)
3104 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
3105 1.1 christos data.only_got = FALSE;
3106 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries, &data);
3107 1.1 christos }
3108 1.1 christos
3109 1.1 christos /* We have now determined the sizes of the various dynamic sections.
3110 1.1 christos Allocate memory for them. */
3111 1.1 christos for (sec = dynobj->sections; sec != NULL; sec = sec->next)
3112 1.1 christos {
3113 1.1 christos bfd_boolean strip;
3114 1.1 christos
3115 1.1 christos if (!(sec->flags & SEC_LINKER_CREATED))
3116 1.1 christos continue;
3117 1.1 christos
3118 1.1 christos /* If we don't need this section, strip it from the output file.
3119 1.1 christos There were several sections primarily related to dynamic
3120 1.1 christos linking that must be create before the linker maps input
3121 1.1 christos sections to output sections. The linker does that before
3122 1.1 christos bfd_elf_size_dynamic_sections is called, and it is that
3123 1.1 christos function which decides whether anything needs to go into
3124 1.1 christos these sections. */
3125 1.1 christos
3126 1.1 christos strip = (sec->size == 0);
3127 1.1 christos
3128 1.1 christos if (sec == ia64_info->root.sgot)
3129 1.1 christos strip = FALSE;
3130 1.1 christos else if (sec == ia64_info->root.srelgot)
3131 1.1 christos {
3132 1.1 christos if (strip)
3133 1.1 christos ia64_info->root.srelgot = NULL;
3134 1.1 christos else
3135 1.1 christos /* We use the reloc_count field as a counter if we need to
3136 1.1 christos copy relocs into the output file. */
3137 1.1 christos sec->reloc_count = 0;
3138 1.1 christos }
3139 1.1 christos else if (sec == ia64_info->fptr_sec)
3140 1.1 christos {
3141 1.1 christos if (strip)
3142 1.1 christos ia64_info->fptr_sec = NULL;
3143 1.1 christos }
3144 1.1 christos else if (sec == ia64_info->rel_fptr_sec)
3145 1.1 christos {
3146 1.1 christos if (strip)
3147 1.1 christos ia64_info->rel_fptr_sec = NULL;
3148 1.1 christos else
3149 1.1 christos /* We use the reloc_count field as a counter if we need to
3150 1.1 christos copy relocs into the output file. */
3151 1.1 christos sec->reloc_count = 0;
3152 1.1 christos }
3153 1.1 christos else if (sec == ia64_info->root.splt)
3154 1.1 christos {
3155 1.1 christos if (strip)
3156 1.1 christos ia64_info->root.splt = NULL;
3157 1.1 christos }
3158 1.1 christos else if (sec == ia64_info->pltoff_sec)
3159 1.1 christos {
3160 1.1 christos if (strip)
3161 1.1 christos ia64_info->pltoff_sec = NULL;
3162 1.1 christos }
3163 1.1 christos else if (sec == ia64_info->rel_pltoff_sec)
3164 1.1 christos {
3165 1.1 christos if (strip)
3166 1.1 christos ia64_info->rel_pltoff_sec = NULL;
3167 1.1 christos else
3168 1.1 christos {
3169 1.1 christos relplt = TRUE;
3170 1.1 christos /* We use the reloc_count field as a counter if we need to
3171 1.1 christos copy relocs into the output file. */
3172 1.1 christos sec->reloc_count = 0;
3173 1.1 christos }
3174 1.1 christos }
3175 1.1 christos else
3176 1.1 christos {
3177 1.1 christos const char *name;
3178 1.1 christos
3179 1.1 christos /* It's OK to base decisions on the section name, because none
3180 1.1 christos of the dynobj section names depend upon the input files. */
3181 1.1 christos name = bfd_get_section_name (dynobj, sec);
3182 1.1 christos
3183 1.1 christos if (strcmp (name, ".got.plt") == 0)
3184 1.1 christos strip = FALSE;
3185 1.1 christos else if (CONST_STRNEQ (name, ".rel"))
3186 1.1 christos {
3187 1.1 christos if (!strip)
3188 1.1 christos {
3189 1.1 christos /* We use the reloc_count field as a counter if we need to
3190 1.1 christos copy relocs into the output file. */
3191 1.1 christos sec->reloc_count = 0;
3192 1.1 christos }
3193 1.1 christos }
3194 1.1 christos else
3195 1.1 christos continue;
3196 1.1 christos }
3197 1.1 christos
3198 1.1 christos if (strip)
3199 1.1 christos sec->flags |= SEC_EXCLUDE;
3200 1.1 christos else
3201 1.1 christos {
3202 1.1 christos /* Allocate memory for the section contents. */
3203 1.1.1.4 christos sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->size);
3204 1.1 christos if (sec->contents == NULL && sec->size != 0)
3205 1.1 christos return FALSE;
3206 1.1 christos }
3207 1.1 christos }
3208 1.1 christos
3209 1.1.1.2 christos if (ia64_info->root.dynamic_sections_created)
3210 1.1 christos {
3211 1.1 christos /* Add some entries to the .dynamic section. We fill in the values
3212 1.1 christos later (in finish_dynamic_sections) but we must add the entries now
3213 1.1 christos so that we get the correct size for the .dynamic section. */
3214 1.1 christos
3215 1.1 christos if (bfd_link_executable (info))
3216 1.1 christos {
3217 1.1 christos /* The DT_DEBUG entry is filled in by the dynamic linker and used
3218 1.1 christos by the debugger. */
3219 1.1 christos #define add_dynamic_entry(TAG, VAL) \
3220 1.1 christos _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3221 1.1 christos
3222 1.1 christos if (!add_dynamic_entry (DT_DEBUG, 0))
3223 1.1 christos return FALSE;
3224 1.1 christos }
3225 1.1 christos
3226 1.1 christos if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE, 0))
3227 1.1 christos return FALSE;
3228 1.1 christos if (!add_dynamic_entry (DT_PLTGOT, 0))
3229 1.1 christos return FALSE;
3230 1.1 christos
3231 1.1 christos if (relplt)
3232 1.1 christos {
3233 1.1 christos if (!add_dynamic_entry (DT_PLTRELSZ, 0)
3234 1.1 christos || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3235 1.1 christos || !add_dynamic_entry (DT_JMPREL, 0))
3236 1.1 christos return FALSE;
3237 1.1 christos }
3238 1.1 christos
3239 1.1 christos if (!add_dynamic_entry (DT_RELA, 0)
3240 1.1 christos || !add_dynamic_entry (DT_RELASZ, 0)
3241 1.1 christos || !add_dynamic_entry (DT_RELAENT, sizeof (ElfNN_External_Rela)))
3242 1.1 christos return FALSE;
3243 1.1 christos
3244 1.1 christos if (ia64_info->reltext)
3245 1.1 christos {
3246 1.1 christos if (!add_dynamic_entry (DT_TEXTREL, 0))
3247 1.1 christos return FALSE;
3248 1.1 christos info->flags |= DF_TEXTREL;
3249 1.1 christos }
3250 1.1 christos }
3251 1.1 christos
3252 1.1 christos /* ??? Perhaps force __gp local. */
3253 1.1 christos
3254 1.1 christos return TRUE;
3255 1.1 christos }
3256 1.1 christos
3257 1.1 christos static void
3258 1.1 christos elfNN_ia64_install_dyn_reloc (bfd *abfd, struct bfd_link_info *info,
3259 1.1 christos asection *sec, asection *srel,
3260 1.1 christos bfd_vma offset, unsigned int type,
3261 1.1 christos long dynindx, bfd_vma addend)
3262 1.1 christos {
3263 1.1 christos Elf_Internal_Rela outrel;
3264 1.1 christos bfd_byte *loc;
3265 1.1 christos
3266 1.1 christos BFD_ASSERT (dynindx != -1);
3267 1.1 christos outrel.r_info = ELFNN_R_INFO (dynindx, type);
3268 1.1 christos outrel.r_addend = addend;
3269 1.1 christos outrel.r_offset = _bfd_elf_section_offset (abfd, info, sec, offset);
3270 1.1 christos if (outrel.r_offset >= (bfd_vma) -2)
3271 1.1 christos {
3272 1.1 christos /* Run for the hills. We shouldn't be outputting a relocation
3273 1.1 christos for this. So do what everyone else does and output a no-op. */
3274 1.1 christos outrel.r_info = ELFNN_R_INFO (0, R_IA64_NONE);
3275 1.1 christos outrel.r_addend = 0;
3276 1.1 christos outrel.r_offset = 0;
3277 1.1 christos }
3278 1.1 christos else
3279 1.1 christos outrel.r_offset += sec->output_section->vma + sec->output_offset;
3280 1.1 christos
3281 1.1 christos loc = srel->contents;
3282 1.1 christos loc += srel->reloc_count++ * sizeof (ElfNN_External_Rela);
3283 1.1 christos bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
3284 1.1 christos BFD_ASSERT (sizeof (ElfNN_External_Rela) * srel->reloc_count <= srel->size);
3285 1.1 christos }
3286 1.1 christos
3287 1.1 christos /* Store an entry for target address TARGET_ADDR in the linkage table
3288 1.1 christos and return the gp-relative address of the linkage table entry. */
3289 1.1 christos
3290 1.1 christos static bfd_vma
3291 1.1 christos set_got_entry (bfd *abfd, struct bfd_link_info *info,
3292 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i,
3293 1.1 christos long dynindx, bfd_vma addend, bfd_vma value,
3294 1.1 christos unsigned int dyn_r_type)
3295 1.1 christos {
3296 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3297 1.1 christos asection *got_sec;
3298 1.1 christos bfd_boolean done;
3299 1.1 christos bfd_vma got_offset;
3300 1.1 christos
3301 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3302 1.1 christos if (ia64_info == NULL)
3303 1.1 christos return 0;
3304 1.1 christos
3305 1.1 christos got_sec = ia64_info->root.sgot;
3306 1.1 christos
3307 1.1 christos switch (dyn_r_type)
3308 1.1 christos {
3309 1.1 christos case R_IA64_TPREL64LSB:
3310 1.1 christos done = dyn_i->tprel_done;
3311 1.1 christos dyn_i->tprel_done = TRUE;
3312 1.1 christos got_offset = dyn_i->tprel_offset;
3313 1.1 christos break;
3314 1.1 christos case R_IA64_DTPMOD64LSB:
3315 1.1 christos if (dyn_i->dtpmod_offset != ia64_info->self_dtpmod_offset)
3316 1.1 christos {
3317 1.1 christos done = dyn_i->dtpmod_done;
3318 1.1 christos dyn_i->dtpmod_done = TRUE;
3319 1.1 christos }
3320 1.1 christos else
3321 1.1 christos {
3322 1.1 christos done = ia64_info->self_dtpmod_done;
3323 1.1 christos ia64_info->self_dtpmod_done = TRUE;
3324 1.1 christos dynindx = 0;
3325 1.1 christos }
3326 1.1 christos got_offset = dyn_i->dtpmod_offset;
3327 1.1 christos break;
3328 1.1 christos case R_IA64_DTPREL32LSB:
3329 1.1 christos case R_IA64_DTPREL64LSB:
3330 1.1 christos done = dyn_i->dtprel_done;
3331 1.1 christos dyn_i->dtprel_done = TRUE;
3332 1.1 christos got_offset = dyn_i->dtprel_offset;
3333 1.1 christos break;
3334 1.1 christos default:
3335 1.1 christos done = dyn_i->got_done;
3336 1.1 christos dyn_i->got_done = TRUE;
3337 1.1 christos got_offset = dyn_i->got_offset;
3338 1.1 christos break;
3339 1.1 christos }
3340 1.1 christos
3341 1.1 christos BFD_ASSERT ((got_offset & 7) == 0);
3342 1.1 christos
3343 1.1.1.2 christos if (! done)
3344 1.1 christos {
3345 1.1.1.4 christos /* Store the target address in the linkage table entry. */
3346 1.1.1.4 christos bfd_put_64 (abfd, value, got_sec->contents + got_offset);
3347 1.1 christos
3348 1.1 christos /* Install a dynamic relocation if needed. */
3349 1.1 christos if (((bfd_link_pic (info)
3350 1.1.1.4 christos && (!dyn_i->h
3351 1.1 christos || (ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
3352 1.1 christos && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, dyn_i->h))
3353 1.1 christos || dyn_i->h->root.type != bfd_link_hash_undefweak)
3354 1.1 christos && dyn_r_type != R_IA64_DTPREL32LSB
3355 1.1.1.2 christos && dyn_r_type != R_IA64_DTPREL64LSB)
3356 1.1 christos || elfNN_ia64_dynamic_symbol_p (dyn_i->h, info, dyn_r_type)
3357 1.1 christos || (dynindx != -1
3358 1.1 christos && (dyn_r_type == R_IA64_FPTR32LSB
3359 1.1 christos || dyn_r_type == R_IA64_FPTR64LSB)))
3360 1.1 christos && (!dyn_i->want_ltoff_fptr
3361 1.1 christos || !bfd_link_pie (info)
3362 1.1 christos || !dyn_i->h
3363 1.1 christos || dyn_i->h->root.type != bfd_link_hash_undefweak))
3364 1.1 christos {
3365 1.1 christos if (dynindx == -1
3366 1.1 christos && dyn_r_type != R_IA64_TPREL64LSB
3367 1.1 christos && dyn_r_type != R_IA64_DTPMOD64LSB
3368 1.1 christos && dyn_r_type != R_IA64_DTPREL32LSB
3369 1.1 christos && dyn_r_type != R_IA64_DTPREL64LSB)
3370 1.1 christos {
3371 1.1 christos dyn_r_type = R_IA64_RELNNLSB;
3372 1.1 christos dynindx = 0;
3373 1.1 christos addend = value;
3374 1.1 christos }
3375 1.1 christos
3376 1.1 christos if (bfd_big_endian (abfd))
3377 1.1 christos {
3378 1.1 christos switch (dyn_r_type)
3379 1.1 christos {
3380 1.1 christos case R_IA64_REL32LSB:
3381 1.1 christos dyn_r_type = R_IA64_REL32MSB;
3382 1.1 christos break;
3383 1.1 christos case R_IA64_DIR32LSB:
3384 1.1 christos dyn_r_type = R_IA64_DIR32MSB;
3385 1.1 christos break;
3386 1.1 christos case R_IA64_FPTR32LSB:
3387 1.1 christos dyn_r_type = R_IA64_FPTR32MSB;
3388 1.1 christos break;
3389 1.1 christos case R_IA64_DTPREL32LSB:
3390 1.1 christos dyn_r_type = R_IA64_DTPREL32MSB;
3391 1.1 christos break;
3392 1.1 christos case R_IA64_REL64LSB:
3393 1.1 christos dyn_r_type = R_IA64_REL64MSB;
3394 1.1 christos break;
3395 1.1 christos case R_IA64_DIR64LSB:
3396 1.1 christos dyn_r_type = R_IA64_DIR64MSB;
3397 1.1 christos break;
3398 1.1 christos case R_IA64_FPTR64LSB:
3399 1.1 christos dyn_r_type = R_IA64_FPTR64MSB;
3400 1.1 christos break;
3401 1.1 christos case R_IA64_TPREL64LSB:
3402 1.1 christos dyn_r_type = R_IA64_TPREL64MSB;
3403 1.1 christos break;
3404 1.1 christos case R_IA64_DTPMOD64LSB:
3405 1.1 christos dyn_r_type = R_IA64_DTPMOD64MSB;
3406 1.1 christos break;
3407 1.1 christos case R_IA64_DTPREL64LSB:
3408 1.1 christos dyn_r_type = R_IA64_DTPREL64MSB;
3409 1.1 christos break;
3410 1.1 christos default:
3411 1.1 christos BFD_ASSERT (FALSE);
3412 1.1 christos break;
3413 1.1 christos }
3414 1.1 christos }
3415 1.1 christos
3416 1.1 christos elfNN_ia64_install_dyn_reloc (abfd, NULL, got_sec,
3417 1.1 christos ia64_info->root.srelgot,
3418 1.1 christos got_offset, dyn_r_type,
3419 1.1 christos dynindx, addend);
3420 1.1 christos }
3421 1.1 christos }
3422 1.1 christos
3423 1.1 christos /* Return the address of the linkage table entry. */
3424 1.1 christos value = (got_sec->output_section->vma
3425 1.1 christos + got_sec->output_offset
3426 1.1 christos + got_offset);
3427 1.1 christos
3428 1.1 christos return value;
3429 1.1 christos }
3430 1.1 christos
3431 1.1 christos /* Fill in a function descriptor consisting of the function's code
3432 1.1 christos address and its global pointer. Return the descriptor's address. */
3433 1.1 christos
3434 1.1 christos static bfd_vma
3435 1.1 christos set_fptr_entry (bfd *abfd, struct bfd_link_info *info,
3436 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i,
3437 1.1 christos bfd_vma value)
3438 1.1 christos {
3439 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3440 1.1 christos asection *fptr_sec;
3441 1.1 christos
3442 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3443 1.1 christos if (ia64_info == NULL)
3444 1.1 christos return 0;
3445 1.1 christos
3446 1.1 christos fptr_sec = ia64_info->fptr_sec;
3447 1.1 christos
3448 1.1 christos if (!dyn_i->fptr_done)
3449 1.1 christos {
3450 1.1 christos dyn_i->fptr_done = 1;
3451 1.1 christos
3452 1.1 christos /* Fill in the function descriptor. */
3453 1.1 christos bfd_put_64 (abfd, value, fptr_sec->contents + dyn_i->fptr_offset);
3454 1.1 christos bfd_put_64 (abfd, _bfd_get_gp_value (abfd),
3455 1.1 christos fptr_sec->contents + dyn_i->fptr_offset + 8);
3456 1.1 christos if (ia64_info->rel_fptr_sec)
3457 1.1 christos {
3458 1.1 christos Elf_Internal_Rela outrel;
3459 1.1 christos bfd_byte *loc;
3460 1.1 christos
3461 1.1 christos if (bfd_little_endian (abfd))
3462 1.1 christos outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTLSB);
3463 1.1 christos else
3464 1.1 christos outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTMSB);
3465 1.1 christos outrel.r_addend = value;
3466 1.1 christos outrel.r_offset = (fptr_sec->output_section->vma
3467 1.1 christos + fptr_sec->output_offset
3468 1.1 christos + dyn_i->fptr_offset);
3469 1.1 christos loc = ia64_info->rel_fptr_sec->contents;
3470 1.1 christos loc += ia64_info->rel_fptr_sec->reloc_count++
3471 1.1 christos * sizeof (ElfNN_External_Rela);
3472 1.1 christos bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
3473 1.1 christos }
3474 1.1 christos }
3475 1.1 christos
3476 1.1 christos /* Return the descriptor's address. */
3477 1.1 christos value = (fptr_sec->output_section->vma
3478 1.1 christos + fptr_sec->output_offset
3479 1.1 christos + dyn_i->fptr_offset);
3480 1.1 christos
3481 1.1 christos return value;
3482 1.1 christos }
3483 1.1 christos
3484 1.1 christos /* Fill in a PLTOFF entry consisting of the function's code address
3485 1.1 christos and its global pointer. Return the descriptor's address. */
3486 1.1 christos
3487 1.1 christos static bfd_vma
3488 1.1 christos set_pltoff_entry (bfd *abfd, struct bfd_link_info *info,
3489 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i,
3490 1.1 christos bfd_vma value, bfd_boolean is_plt)
3491 1.1 christos {
3492 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3493 1.1 christos asection *pltoff_sec;
3494 1.1 christos
3495 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3496 1.1 christos if (ia64_info == NULL)
3497 1.1 christos return 0;
3498 1.1 christos
3499 1.1 christos pltoff_sec = ia64_info->pltoff_sec;
3500 1.1 christos
3501 1.1 christos /* Don't do anything if this symbol uses a real PLT entry. In
3502 1.1 christos that case, we'll fill this in during finish_dynamic_symbol. */
3503 1.1 christos if ((! dyn_i->want_plt || is_plt)
3504 1.1 christos && !dyn_i->pltoff_done)
3505 1.1 christos {
3506 1.1 christos bfd_vma gp = _bfd_get_gp_value (abfd);
3507 1.1 christos
3508 1.1.1.2 christos /* Fill in the function descriptor. */
3509 1.1 christos bfd_put_64 (abfd, value, pltoff_sec->contents + dyn_i->pltoff_offset);
3510 1.1.1.4 christos bfd_put_64 (abfd, gp, pltoff_sec->contents + dyn_i->pltoff_offset + 8);
3511 1.1.1.4 christos
3512 1.1 christos /* Install dynamic relocations if needed. */
3513 1.1 christos if (!is_plt
3514 1.1 christos && bfd_link_pic (info)
3515 1.1 christos && (!dyn_i->h
3516 1.1 christos || (ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
3517 1.1 christos && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, dyn_i->h))
3518 1.1 christos || dyn_i->h->root.type != bfd_link_hash_undefweak))
3519 1.1 christos {
3520 1.1 christos unsigned int dyn_r_type;
3521 1.1 christos
3522 1.1 christos if (bfd_big_endian (abfd))
3523 1.1 christos dyn_r_type = R_IA64_RELNNMSB;
3524 1.1 christos else
3525 1.1 christos dyn_r_type = R_IA64_RELNNLSB;
3526 1.1 christos
3527 1.1 christos elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
3528 1.1 christos ia64_info->rel_pltoff_sec,
3529 1.1 christos dyn_i->pltoff_offset,
3530 1.1 christos dyn_r_type, 0, value);
3531 1.1 christos elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
3532 1.1 christos ia64_info->rel_pltoff_sec,
3533 1.1 christos dyn_i->pltoff_offset + ARCH_SIZE / 8,
3534 1.1 christos dyn_r_type, 0, gp);
3535 1.1 christos }
3536 1.1 christos
3537 1.1 christos dyn_i->pltoff_done = 1;
3538 1.1 christos }
3539 1.1 christos
3540 1.1 christos /* Return the descriptor's address. */
3541 1.1 christos value = (pltoff_sec->output_section->vma
3542 1.1 christos + pltoff_sec->output_offset
3543 1.1 christos + dyn_i->pltoff_offset);
3544 1.1 christos
3545 1.1 christos return value;
3546 1.1 christos }
3547 1.1 christos
3548 1.1 christos /* Return the base VMA address which should be subtracted from real addresses
3549 1.1 christos when resolving @tprel() relocation.
3550 1.1 christos Main program TLS (whose template starts at PT_TLS p_vaddr)
3551 1.1 christos is assigned offset round(2 * size of pointer, PT_TLS p_align). */
3552 1.1 christos
3553 1.1 christos static bfd_vma
3554 1.1 christos elfNN_ia64_tprel_base (struct bfd_link_info *info)
3555 1.1 christos {
3556 1.1 christos asection *tls_sec = elf_hash_table (info)->tls_sec;
3557 1.1 christos return tls_sec->vma - align_power ((bfd_vma) ARCH_SIZE / 4,
3558 1.1 christos tls_sec->alignment_power);
3559 1.1 christos }
3560 1.1 christos
3561 1.1 christos /* Return the base VMA address which should be subtracted from real addresses
3562 1.1 christos when resolving @dtprel() relocation.
3563 1.1 christos This is PT_TLS segment p_vaddr. */
3564 1.1 christos
3565 1.1 christos static bfd_vma
3566 1.1 christos elfNN_ia64_dtprel_base (struct bfd_link_info *info)
3567 1.1 christos {
3568 1.1 christos return elf_hash_table (info)->tls_sec->vma;
3569 1.1 christos }
3570 1.1 christos
3571 1.1 christos /* Called through qsort to sort the .IA_64.unwind section during a
3572 1.1 christos non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
3573 1.1 christos to the output bfd so we can do proper endianness frobbing. */
3574 1.1 christos
3575 1.1 christos static bfd *elfNN_ia64_unwind_entry_compare_bfd;
3576 1.1 christos
3577 1.1 christos static int
3578 1.1 christos elfNN_ia64_unwind_entry_compare (const void * a, const void * b)
3579 1.1 christos {
3580 1.1 christos bfd_vma av, bv;
3581 1.1 christos
3582 1.1 christos av = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, a);
3583 1.1 christos bv = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, b);
3584 1.1 christos
3585 1.1 christos return (av < bv ? -1 : av > bv ? 1 : 0);
3586 1.1 christos }
3587 1.1 christos
3588 1.1 christos /* Make sure we've got ourselves a nice fat __gp value. */
3589 1.1 christos static bfd_boolean
3590 1.1 christos elfNN_ia64_choose_gp (bfd *abfd, struct bfd_link_info *info, bfd_boolean final)
3591 1.1 christos {
3592 1.1 christos bfd_vma min_vma = (bfd_vma) -1, max_vma = 0;
3593 1.1 christos bfd_vma min_short_vma = min_vma, max_short_vma = 0;
3594 1.1 christos struct elf_link_hash_entry *gp;
3595 1.1 christos bfd_vma gp_val;
3596 1.1 christos asection *os;
3597 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3598 1.1 christos
3599 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3600 1.1 christos if (ia64_info == NULL)
3601 1.1 christos return FALSE;
3602 1.1 christos
3603 1.1 christos /* Find the min and max vma of all sections marked short. Also collect
3604 1.1 christos min and max vma of any type, for use in selecting a nice gp. */
3605 1.1 christos for (os = abfd->sections; os ; os = os->next)
3606 1.1 christos {
3607 1.1 christos bfd_vma lo, hi;
3608 1.1 christos
3609 1.1 christos if ((os->flags & SEC_ALLOC) == 0)
3610 1.1 christos continue;
3611 1.1 christos
3612 1.1 christos lo = os->vma;
3613 1.1 christos /* When this function is called from elfNN_ia64_final_link
3614 1.1 christos the correct value to use is os->size. When called from
3615 1.1 christos elfNN_ia64_relax_section we are in the middle of section
3616 1.1 christos sizing; some sections will already have os->size set, others
3617 1.1 christos will have os->size zero and os->rawsize the previous size. */
3618 1.1 christos hi = os->vma + (!final && os->rawsize ? os->rawsize : os->size);
3619 1.1 christos if (hi < lo)
3620 1.1 christos hi = (bfd_vma) -1;
3621 1.1 christos
3622 1.1 christos if (min_vma > lo)
3623 1.1 christos min_vma = lo;
3624 1.1 christos if (max_vma < hi)
3625 1.1 christos max_vma = hi;
3626 1.1 christos if (os->flags & SEC_SMALL_DATA)
3627 1.1 christos {
3628 1.1 christos if (min_short_vma > lo)
3629 1.1 christos min_short_vma = lo;
3630 1.1 christos if (max_short_vma < hi)
3631 1.1 christos max_short_vma = hi;
3632 1.1 christos }
3633 1.1 christos }
3634 1.1 christos
3635 1.1 christos if (ia64_info->min_short_sec)
3636 1.1 christos {
3637 1.1 christos if (min_short_vma
3638 1.1 christos > (ia64_info->min_short_sec->vma
3639 1.1 christos + ia64_info->min_short_offset))
3640 1.1 christos min_short_vma = (ia64_info->min_short_sec->vma
3641 1.1 christos + ia64_info->min_short_offset);
3642 1.1 christos if (max_short_vma
3643 1.1 christos < (ia64_info->max_short_sec->vma
3644 1.1 christos + ia64_info->max_short_offset))
3645 1.1 christos max_short_vma = (ia64_info->max_short_sec->vma
3646 1.1 christos + ia64_info->max_short_offset);
3647 1.1 christos }
3648 1.1 christos
3649 1.1 christos /* See if the user wants to force a value. */
3650 1.1 christos gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
3651 1.1 christos FALSE, FALSE);
3652 1.1 christos
3653 1.1 christos if (gp
3654 1.1 christos && (gp->root.type == bfd_link_hash_defined
3655 1.1 christos || gp->root.type == bfd_link_hash_defweak))
3656 1.1 christos {
3657 1.1 christos asection *gp_sec = gp->root.u.def.section;
3658 1.1 christos gp_val = (gp->root.u.def.value
3659 1.1 christos + gp_sec->output_section->vma
3660 1.1 christos + gp_sec->output_offset);
3661 1.1 christos }
3662 1.1 christos else
3663 1.1 christos {
3664 1.1 christos /* Pick a sensible value. */
3665 1.1 christos
3666 1.1 christos if (ia64_info->min_short_sec)
3667 1.1 christos {
3668 1.1 christos bfd_vma short_range = max_short_vma - min_short_vma;
3669 1.1 christos
3670 1.1 christos /* If min_short_sec is set, pick one in the middle bewteen
3671 1.1 christos min_short_vma and max_short_vma. */
3672 1.1 christos if (short_range >= 0x400000)
3673 1.1 christos goto overflow;
3674 1.1 christos gp_val = min_short_vma + short_range / 2;
3675 1.1 christos }
3676 1.1 christos else
3677 1.1 christos {
3678 1.1 christos asection *got_sec = ia64_info->root.sgot;
3679 1.1 christos
3680 1.1 christos /* Start with just the address of the .got. */
3681 1.1 christos if (got_sec)
3682 1.1 christos gp_val = got_sec->output_section->vma;
3683 1.1 christos else if (max_short_vma != 0)
3684 1.1 christos gp_val = min_short_vma;
3685 1.1 christos else if (max_vma - min_vma < 0x200000)
3686 1.1 christos gp_val = min_vma;
3687 1.1 christos else
3688 1.1 christos gp_val = max_vma - 0x200000 + 8;
3689 1.1 christos }
3690 1.1 christos
3691 1.1 christos /* If it is possible to address the entire image, but we
3692 1.1 christos don't with the choice above, adjust. */
3693 1.1 christos if (max_vma - min_vma < 0x400000
3694 1.1 christos && (max_vma - gp_val >= 0x200000
3695 1.1 christos || gp_val - min_vma > 0x200000))
3696 1.1 christos gp_val = min_vma + 0x200000;
3697 1.1 christos else if (max_short_vma != 0)
3698 1.1 christos {
3699 1.1 christos /* If we don't cover all the short data, adjust. */
3700 1.1 christos if (max_short_vma - gp_val >= 0x200000)
3701 1.1 christos gp_val = min_short_vma + 0x200000;
3702 1.1 christos
3703 1.1 christos /* If we're addressing stuff past the end, adjust back. */
3704 1.1 christos if (gp_val > max_vma)
3705 1.1 christos gp_val = max_vma - 0x200000 + 8;
3706 1.1 christos }
3707 1.1 christos }
3708 1.1 christos
3709 1.1 christos /* Validate whether all SHF_IA_64_SHORT sections are within
3710 1.1 christos range of the chosen GP. */
3711 1.1.1.4 christos
3712 1.1.1.4 christos if (max_short_vma != 0)
3713 1.1.1.5 christos {
3714 1.1.1.5 christos if (max_short_vma - min_short_vma >= 0x400000)
3715 1.1 christos {
3716 1.1 christos overflow:
3717 1.1 christos _bfd_error_handler
3718 1.1 christos /* xgettext:c-format */
3719 1.1 christos (_("%pB: short data segment overflowed (%#" PRIx64 " >= 0x400000)"),
3720 1.1 christos abfd, (uint64_t) (max_short_vma - min_short_vma));
3721 1.1 christos return FALSE;
3722 1.1.1.4 christos }
3723 1.1.1.5 christos else if ((gp_val > min_short_vma
3724 1.1 christos && gp_val - min_short_vma > 0x200000)
3725 1.1 christos || (gp_val < max_short_vma
3726 1.1 christos && max_short_vma - gp_val >= 0x200000))
3727 1.1 christos {
3728 1.1 christos _bfd_error_handler
3729 1.1 christos (_("%pB: __gp does not cover short data segment"), abfd);
3730 1.1 christos return FALSE;
3731 1.1 christos }
3732 1.1 christos }
3733 1.1 christos
3734 1.1 christos _bfd_set_gp_value (abfd, gp_val);
3735 1.1 christos
3736 1.1 christos return TRUE;
3737 1.1 christos }
3738 1.1 christos
3739 1.1 christos static bfd_boolean
3740 1.1 christos elfNN_ia64_final_link (bfd *abfd, struct bfd_link_info *info)
3741 1.1 christos {
3742 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3743 1.1 christos asection *unwind_output_sec;
3744 1.1.1.2 christos
3745 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3746 1.1 christos if (ia64_info == NULL)
3747 1.1 christos return FALSE;
3748 1.1 christos
3749 1.1 christos /* Make sure we've got ourselves a nice fat __gp value. */
3750 1.1 christos if (!bfd_link_relocatable (info))
3751 1.1 christos {
3752 1.1 christos bfd_vma gp_val;
3753 1.1 christos struct elf_link_hash_entry *gp;
3754 1.1 christos
3755 1.1 christos /* We assume after gp is set, section size will only decrease. We
3756 1.1 christos need to adjust gp for it. */
3757 1.1.1.4 christos _bfd_set_gp_value (abfd, 0);
3758 1.1 christos if (! elfNN_ia64_choose_gp (abfd, info, TRUE))
3759 1.1 christos return FALSE;
3760 1.1 christos gp_val = _bfd_get_gp_value (abfd);
3761 1.1 christos
3762 1.1 christos gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
3763 1.1 christos FALSE, FALSE);
3764 1.1 christos if (gp)
3765 1.1 christos {
3766 1.1 christos gp->root.type = bfd_link_hash_defined;
3767 1.1 christos gp->root.u.def.value = gp_val;
3768 1.1 christos gp->root.u.def.section = bfd_abs_section_ptr;
3769 1.1 christos }
3770 1.1.1.2 christos }
3771 1.1 christos
3772 1.1 christos /* If we're producing a final executable, we need to sort the contents
3773 1.1 christos of the .IA_64.unwind section. Force this section to be relocated
3774 1.1 christos into memory rather than written immediately to the output file. */
3775 1.1 christos unwind_output_sec = NULL;
3776 1.1 christos if (!bfd_link_relocatable (info))
3777 1.1 christos {
3778 1.1 christos asection *s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_unwind);
3779 1.1 christos if (s)
3780 1.1 christos {
3781 1.1 christos unwind_output_sec = s->output_section;
3782 1.1 christos unwind_output_sec->contents
3783 1.1 christos = bfd_malloc (unwind_output_sec->size);
3784 1.1 christos if (unwind_output_sec->contents == NULL)
3785 1.1 christos return FALSE;
3786 1.1 christos }
3787 1.1 christos }
3788 1.1 christos
3789 1.1 christos /* Invoke the regular ELF backend linker to do all the work. */
3790 1.1 christos if (!bfd_elf_final_link (abfd, info))
3791 1.1 christos return FALSE;
3792 1.1 christos
3793 1.1 christos if (unwind_output_sec)
3794 1.1 christos {
3795 1.1 christos elfNN_ia64_unwind_entry_compare_bfd = abfd;
3796 1.1 christos qsort (unwind_output_sec->contents,
3797 1.1 christos (size_t) (unwind_output_sec->size / 24),
3798 1.1 christos 24,
3799 1.1 christos elfNN_ia64_unwind_entry_compare);
3800 1.1 christos
3801 1.1 christos if (! bfd_set_section_contents (abfd, unwind_output_sec,
3802 1.1 christos unwind_output_sec->contents, (bfd_vma) 0,
3803 1.1 christos unwind_output_sec->size))
3804 1.1 christos return FALSE;
3805 1.1 christos }
3806 1.1 christos
3807 1.1 christos return TRUE;
3808 1.1 christos }
3809 1.1 christos
3810 1.1 christos static bfd_boolean
3811 1.1 christos elfNN_ia64_relocate_section (bfd *output_bfd,
3812 1.1 christos struct bfd_link_info *info,
3813 1.1 christos bfd *input_bfd,
3814 1.1 christos asection *input_section,
3815 1.1 christos bfd_byte *contents,
3816 1.1 christos Elf_Internal_Rela *relocs,
3817 1.1 christos Elf_Internal_Sym *local_syms,
3818 1.1 christos asection **local_sections)
3819 1.1 christos {
3820 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3821 1.1 christos Elf_Internal_Shdr *symtab_hdr;
3822 1.1 christos Elf_Internal_Rela *rel;
3823 1.1 christos Elf_Internal_Rela *relend;
3824 1.1 christos asection *srel;
3825 1.1 christos bfd_boolean ret_val = TRUE; /* for non-fatal errors */
3826 1.1 christos bfd_vma gp_val;
3827 1.1 christos
3828 1.1.1.2 christos symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3829 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3830 1.1 christos if (ia64_info == NULL)
3831 1.1 christos return FALSE;
3832 1.1 christos
3833 1.1 christos /* Infect various flags from the input section to the output section. */
3834 1.1 christos if (bfd_link_relocatable (info))
3835 1.1 christos {
3836 1.1 christos bfd_vma flags;
3837 1.1 christos
3838 1.1 christos flags = elf_section_data(input_section)->this_hdr.sh_flags;
3839 1.1 christos flags &= SHF_IA_64_NORECOV;
3840 1.1 christos
3841 1.1 christos elf_section_data(input_section->output_section)
3842 1.1 christos ->this_hdr.sh_flags |= flags;
3843 1.1 christos }
3844 1.1 christos
3845 1.1 christos gp_val = _bfd_get_gp_value (output_bfd);
3846 1.1 christos srel = get_reloc_section (input_bfd, ia64_info, input_section, FALSE);
3847 1.1 christos
3848 1.1 christos rel = relocs;
3849 1.1 christos relend = relocs + input_section->reloc_count;
3850 1.1 christos for (; rel < relend; ++rel)
3851 1.1 christos {
3852 1.1 christos struct elf_link_hash_entry *h;
3853 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
3854 1.1 christos bfd_reloc_status_type r;
3855 1.1 christos reloc_howto_type *howto;
3856 1.1 christos unsigned long r_symndx;
3857 1.1 christos Elf_Internal_Sym *sym;
3858 1.1 christos unsigned int r_type;
3859 1.1 christos bfd_vma value;
3860 1.1 christos asection *sym_sec;
3861 1.1 christos bfd_byte *hit_addr;
3862 1.1.1.5 christos bfd_boolean dynamic_symbol_p;
3863 1.1.1.5 christos bfd_boolean undef_weak_ref;
3864 1.1.1.5 christos
3865 1.1 christos r_type = ELFNN_R_TYPE (rel->r_info);
3866 1.1 christos if (r_type > R_IA64_MAX_RELOC_CODE)
3867 1.1 christos {
3868 1.1 christos /* xgettext:c-format */
3869 1.1 christos _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
3870 1.1 christos input_bfd, (int) r_type);
3871 1.1.1.5 christos bfd_set_error (bfd_error_bad_value);
3872 1.1.1.5 christos ret_val = FALSE;
3873 1.1.1.5 christos continue;
3874 1.1.1.5 christos }
3875 1.1.1.5 christos
3876 1.1.1.5 christos howto = ia64_elf_lookup_howto (r_type);
3877 1.1 christos if (howto == NULL)
3878 1.1 christos {
3879 1.1 christos ret_val = FALSE;
3880 1.1 christos continue;
3881 1.1 christos }
3882 1.1 christos
3883 1.1 christos r_symndx = ELFNN_R_SYM (rel->r_info);
3884 1.1 christos h = NULL;
3885 1.1 christos sym = NULL;
3886 1.1 christos sym_sec = NULL;
3887 1.1 christos undef_weak_ref = FALSE;
3888 1.1 christos
3889 1.1 christos if (r_symndx < symtab_hdr->sh_info)
3890 1.1 christos {
3891 1.1.1.2 christos /* Reloc against local symbol. */
3892 1.1 christos asection *msec;
3893 1.1 christos sym = local_syms + r_symndx;
3894 1.1 christos sym_sec = local_sections[r_symndx];
3895 1.1 christos msec = sym_sec;
3896 1.1 christos value = _bfd_elf_rela_local_sym (output_bfd, sym, &msec, rel);
3897 1.1 christos if (!bfd_link_relocatable (info)
3898 1.1 christos && (sym_sec->flags & SEC_MERGE) != 0
3899 1.1 christos && ELF_ST_TYPE (sym->st_info) == STT_SECTION
3900 1.1 christos && sym_sec->sec_info_type == SEC_INFO_TYPE_MERGE)
3901 1.1 christos {
3902 1.1 christos struct elfNN_ia64_local_hash_entry *loc_h;
3903 1.1 christos
3904 1.1 christos loc_h = get_local_sym_hash (ia64_info, input_bfd, rel, FALSE);
3905 1.1 christos if (loc_h && ! loc_h->sec_merge_done)
3906 1.1 christos {
3907 1.1 christos struct elfNN_ia64_dyn_sym_info *dynent;
3908 1.1 christos unsigned int count;
3909 1.1 christos
3910 1.1 christos for (count = loc_h->count, dynent = loc_h->info;
3911 1.1 christos count != 0;
3912 1.1 christos count--, dynent++)
3913 1.1 christos {
3914 1.1 christos msec = sym_sec;
3915 1.1 christos dynent->addend =
3916 1.1 christos _bfd_merged_section_offset (output_bfd, &msec,
3917 1.1 christos elf_section_data (msec)->
3918 1.1 christos sec_info,
3919 1.1 christos sym->st_value
3920 1.1 christos + dynent->addend);
3921 1.1 christos dynent->addend -= sym->st_value;
3922 1.1 christos dynent->addend += msec->output_section->vma
3923 1.1 christos + msec->output_offset
3924 1.1 christos - sym_sec->output_section->vma
3925 1.1 christos - sym_sec->output_offset;
3926 1.1 christos }
3927 1.1 christos
3928 1.1 christos /* We may have introduced duplicated entries. We need
3929 1.1 christos to remove them properly. */
3930 1.1 christos count = sort_dyn_sym_info (loc_h->info, loc_h->count);
3931 1.1 christos if (count != loc_h->count)
3932 1.1 christos {
3933 1.1 christos loc_h->count = count;
3934 1.1 christos loc_h->sorted_count = count;
3935 1.1 christos }
3936 1.1 christos
3937 1.1 christos loc_h->sec_merge_done = 1;
3938 1.1.1.2 christos }
3939 1.1 christos }
3940 1.1 christos }
3941 1.1 christos else
3942 1.1 christos {
3943 1.1 christos bfd_boolean unresolved_reloc;
3944 1.1.1.2 christos bfd_boolean warned, ignored;
3945 1.1 christos struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
3946 1.1 christos
3947 1.1 christos RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3948 1.1.1.2 christos r_symndx, symtab_hdr, sym_hashes,
3949 1.1 christos h, sym_sec, value,
3950 1.1 christos unresolved_reloc, warned, ignored);
3951 1.1 christos
3952 1.1 christos if (h->root.type == bfd_link_hash_undefweak)
3953 1.1 christos undef_weak_ref = TRUE;
3954 1.1 christos else if (warned || (ignored && bfd_link_executable (info)))
3955 1.1 christos continue;
3956 1.1.1.2 christos }
3957 1.1 christos
3958 1.1 christos if (sym_sec != NULL && discarded_section (sym_sec))
3959 1.1 christos RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3960 1.1 christos rel, 1, relend, howto, 0, contents);
3961 1.1 christos
3962 1.1 christos if (bfd_link_relocatable (info))
3963 1.1 christos continue;
3964 1.1 christos
3965 1.1 christos hit_addr = contents + rel->r_offset;
3966 1.1 christos value += rel->r_addend;
3967 1.1 christos dynamic_symbol_p = elfNN_ia64_dynamic_symbol_p (h, info, r_type);
3968 1.1 christos
3969 1.1 christos switch (r_type)
3970 1.1 christos {
3971 1.1 christos case R_IA64_NONE:
3972 1.1 christos case R_IA64_LDXMOV:
3973 1.1 christos continue;
3974 1.1 christos
3975 1.1 christos case R_IA64_IMM14:
3976 1.1 christos case R_IA64_IMM22:
3977 1.1.1.2 christos case R_IA64_IMM64:
3978 1.1.1.4 christos case R_IA64_DIR32MSB:
3979 1.1 christos case R_IA64_DIR32LSB:
3980 1.1 christos case R_IA64_DIR64MSB:
3981 1.1 christos case R_IA64_DIR64LSB:
3982 1.1 christos /* Install a dynamic relocation for this reloc. */
3983 1.1 christos if ((dynamic_symbol_p || bfd_link_pic (info))
3984 1.1 christos && !(h && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
3985 1.1 christos && r_symndx != STN_UNDEF
3986 1.1 christos && (input_section->flags & SEC_ALLOC) != 0)
3987 1.1 christos {
3988 1.1 christos unsigned int dyn_r_type;
3989 1.1 christos long dynindx;
3990 1.1 christos bfd_vma addend;
3991 1.1 christos
3992 1.1 christos BFD_ASSERT (srel != NULL);
3993 1.1 christos
3994 1.1 christos switch (r_type)
3995 1.1.1.4 christos {
3996 1.1.1.4 christos case R_IA64_IMM14:
3997 1.1.1.5 christos case R_IA64_IMM22:
3998 1.1 christos case R_IA64_IMM64:
3999 1.1 christos /* ??? People shouldn't be doing non-pic code in
4000 1.1 christos shared libraries nor dynamic executables. */
4001 1.1 christos _bfd_error_handler
4002 1.1 christos /* xgettext:c-format */
4003 1.1 christos (_("%pB: non-pic code with imm relocation against dynamic symbol `%s'"),
4004 1.1 christos input_bfd,
4005 1.1 christos h ? h->root.root.string
4006 1.1 christos : bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4007 1.1 christos sym_sec));
4008 1.1 christos ret_val = FALSE;
4009 1.1 christos continue;
4010 1.1 christos
4011 1.1 christos default:
4012 1.1 christos break;
4013 1.1 christos }
4014 1.1 christos
4015 1.1 christos /* If we don't need dynamic symbol lookup, find a
4016 1.1 christos matching RELATIVE relocation. */
4017 1.1 christos dyn_r_type = r_type;
4018 1.1 christos if (dynamic_symbol_p)
4019 1.1 christos {
4020 1.1 christos dynindx = h->dynindx;
4021 1.1 christos addend = rel->r_addend;
4022 1.1 christos value = 0;
4023 1.1 christos }
4024 1.1 christos else
4025 1.1 christos {
4026 1.1 christos switch (r_type)
4027 1.1 christos {
4028 1.1 christos case R_IA64_DIR32MSB:
4029 1.1 christos dyn_r_type = R_IA64_REL32MSB;
4030 1.1 christos break;
4031 1.1 christos case R_IA64_DIR32LSB:
4032 1.1 christos dyn_r_type = R_IA64_REL32LSB;
4033 1.1 christos break;
4034 1.1 christos case R_IA64_DIR64MSB:
4035 1.1 christos dyn_r_type = R_IA64_REL64MSB;
4036 1.1 christos break;
4037 1.1 christos case R_IA64_DIR64LSB:
4038 1.1 christos dyn_r_type = R_IA64_REL64LSB;
4039 1.1 christos break;
4040 1.1 christos
4041 1.1 christos default:
4042 1.1 christos break;
4043 1.1 christos }
4044 1.1 christos dynindx = 0;
4045 1.1 christos addend = value;
4046 1.1 christos }
4047 1.1 christos
4048 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4049 1.1 christos srel, rel->r_offset, dyn_r_type,
4050 1.1 christos dynindx, addend);
4051 1.1 christos }
4052 1.1 christos /* Fall through. */
4053 1.1 christos
4054 1.1 christos case R_IA64_LTV32MSB:
4055 1.1 christos case R_IA64_LTV32LSB:
4056 1.1 christos case R_IA64_LTV64MSB:
4057 1.1 christos case R_IA64_LTV64LSB:
4058 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4059 1.1 christos break;
4060 1.1 christos
4061 1.1 christos case R_IA64_GPREL22:
4062 1.1 christos case R_IA64_GPREL64I:
4063 1.1.1.4 christos case R_IA64_GPREL32MSB:
4064 1.1.1.4 christos case R_IA64_GPREL32LSB:
4065 1.1.1.5 christos case R_IA64_GPREL64MSB:
4066 1.1 christos case R_IA64_GPREL64LSB:
4067 1.1 christos if (dynamic_symbol_p)
4068 1.1 christos {
4069 1.1 christos _bfd_error_handler
4070 1.1 christos /* xgettext:c-format */
4071 1.1 christos (_("%pB: @gprel relocation against dynamic symbol %s"),
4072 1.1 christos input_bfd,
4073 1.1 christos h ? h->root.root.string
4074 1.1 christos : bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4075 1.1 christos sym_sec));
4076 1.1 christos ret_val = FALSE;
4077 1.1 christos continue;
4078 1.1 christos }
4079 1.1 christos value -= gp_val;
4080 1.1.1.4 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4081 1.1 christos break;
4082 1.1 christos
4083 1.1 christos case R_IA64_LTOFF22:
4084 1.1 christos case R_IA64_LTOFF22X:
4085 1.1 christos case R_IA64_LTOFF64I:
4086 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4087 1.1 christos value = set_got_entry (input_bfd, info, dyn_i, (h ? h->dynindx : -1),
4088 1.1 christos rel->r_addend, value, R_IA64_DIRNNLSB);
4089 1.1 christos value -= gp_val;
4090 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4091 1.1.1.4 christos break;
4092 1.1 christos
4093 1.1 christos case R_IA64_PLTOFF22:
4094 1.1 christos case R_IA64_PLTOFF64I:
4095 1.1 christos case R_IA64_PLTOFF64MSB:
4096 1.1 christos case R_IA64_PLTOFF64LSB:
4097 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4098 1.1 christos value = set_pltoff_entry (output_bfd, info, dyn_i, value, FALSE);
4099 1.1 christos value -= gp_val;
4100 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4101 1.1 christos break;
4102 1.1.1.4 christos
4103 1.1 christos case R_IA64_FPTR64I:
4104 1.1 christos case R_IA64_FPTR32MSB:
4105 1.1 christos case R_IA64_FPTR32LSB:
4106 1.1 christos case R_IA64_FPTR64MSB:
4107 1.1 christos case R_IA64_FPTR64LSB:
4108 1.1.1.2 christos dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4109 1.1 christos if (dyn_i->want_fptr)
4110 1.1 christos {
4111 1.1 christos if (!undef_weak_ref)
4112 1.1 christos value = set_fptr_entry (output_bfd, info, dyn_i, value);
4113 1.1 christos }
4114 1.1 christos if (!dyn_i->want_fptr || bfd_link_pie (info))
4115 1.1 christos {
4116 1.1 christos long dynindx;
4117 1.1 christos unsigned int dyn_r_type = r_type;
4118 1.1 christos bfd_vma addend = rel->r_addend;
4119 1.1 christos
4120 1.1 christos /* Otherwise, we expect the dynamic linker to create
4121 1.1 christos the entry. */
4122 1.1 christos
4123 1.1 christos if (dyn_i->want_fptr)
4124 1.1 christos {
4125 1.1 christos if (r_type == R_IA64_FPTR64I)
4126 1.1 christos {
4127 1.1.1.4 christos /* We can't represent this without a dynamic symbol.
4128 1.1.1.5 christos Adjust the relocation to be against an output
4129 1.1 christos section symbol, which are always present in the
4130 1.1 christos dynamic symbol table. */
4131 1.1 christos /* ??? People shouldn't be doing non-pic code in
4132 1.1 christos shared libraries. Hork. */
4133 1.1 christos _bfd_error_handler
4134 1.1 christos (_("%pB: linking non-pic code in a position independent executable"),
4135 1.1 christos input_bfd);
4136 1.1 christos ret_val = FALSE;
4137 1.1 christos continue;
4138 1.1 christos }
4139 1.1 christos dynindx = 0;
4140 1.1 christos addend = value;
4141 1.1 christos dyn_r_type = r_type + R_IA64_RELNNLSB - R_IA64_FPTRNNLSB;
4142 1.1 christos }
4143 1.1 christos else if (h)
4144 1.1 christos {
4145 1.1 christos if (h->dynindx != -1)
4146 1.1 christos dynindx = h->dynindx;
4147 1.1 christos else
4148 1.1 christos dynindx = (_bfd_elf_link_lookup_local_dynindx
4149 1.1 christos (info, h->root.u.def.section->owner,
4150 1.1 christos global_sym_index (h)));
4151 1.1 christos value = 0;
4152 1.1 christos }
4153 1.1 christos else
4154 1.1 christos {
4155 1.1 christos dynindx = (_bfd_elf_link_lookup_local_dynindx
4156 1.1 christos (info, input_bfd, (long) r_symndx));
4157 1.1 christos value = 0;
4158 1.1 christos }
4159 1.1 christos
4160 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4161 1.1 christos srel, rel->r_offset, dyn_r_type,
4162 1.1 christos dynindx, addend);
4163 1.1 christos }
4164 1.1 christos
4165 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4166 1.1 christos break;
4167 1.1 christos
4168 1.1 christos case R_IA64_LTOFF_FPTR22:
4169 1.1 christos case R_IA64_LTOFF_FPTR64I:
4170 1.1 christos case R_IA64_LTOFF_FPTR32MSB:
4171 1.1 christos case R_IA64_LTOFF_FPTR32LSB:
4172 1.1 christos case R_IA64_LTOFF_FPTR64MSB:
4173 1.1 christos case R_IA64_LTOFF_FPTR64LSB:
4174 1.1 christos {
4175 1.1.1.4 christos long dynindx;
4176 1.1.1.4 christos
4177 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4178 1.1 christos if (dyn_i->want_fptr)
4179 1.1 christos {
4180 1.1 christos BFD_ASSERT (h == NULL || h->dynindx == -1);
4181 1.1.1.4 christos if (!undef_weak_ref)
4182 1.1 christos value = set_fptr_entry (output_bfd, info, dyn_i, value);
4183 1.1.1.4 christos dynindx = -1;
4184 1.1 christos }
4185 1.1 christos else
4186 1.1 christos {
4187 1.1 christos /* Otherwise, we expect the dynamic linker to create
4188 1.1 christos the entry. */
4189 1.1 christos if (h)
4190 1.1 christos {
4191 1.1 christos if (h->dynindx != -1)
4192 1.1 christos dynindx = h->dynindx;
4193 1.1 christos else
4194 1.1 christos dynindx = (_bfd_elf_link_lookup_local_dynindx
4195 1.1 christos (info, h->root.u.def.section->owner,
4196 1.1 christos global_sym_index (h)));
4197 1.1 christos }
4198 1.1 christos else
4199 1.1 christos dynindx = (_bfd_elf_link_lookup_local_dynindx
4200 1.1 christos (info, input_bfd, (long) r_symndx));
4201 1.1 christos value = 0;
4202 1.1 christos }
4203 1.1 christos
4204 1.1 christos value = set_got_entry (output_bfd, info, dyn_i, dynindx,
4205 1.1 christos rel->r_addend, value, R_IA64_FPTRNNLSB);
4206 1.1 christos value -= gp_val;
4207 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4208 1.1 christos }
4209 1.1 christos break;
4210 1.1 christos
4211 1.1 christos case R_IA64_PCREL32MSB:
4212 1.1 christos case R_IA64_PCREL32LSB:
4213 1.1 christos case R_IA64_PCREL64MSB:
4214 1.1 christos case R_IA64_PCREL64LSB:
4215 1.1 christos /* Install a dynamic relocation for this reloc. */
4216 1.1 christos if (dynamic_symbol_p && r_symndx != STN_UNDEF)
4217 1.1 christos {
4218 1.1 christos BFD_ASSERT (srel != NULL);
4219 1.1 christos
4220 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4221 1.1 christos srel, rel->r_offset, r_type,
4222 1.1 christos h->dynindx, rel->r_addend);
4223 1.1 christos }
4224 1.1 christos goto finish_pcrel;
4225 1.1 christos
4226 1.1 christos case R_IA64_PCREL21B:
4227 1.1 christos case R_IA64_PCREL60B:
4228 1.1 christos /* We should have created a PLT entry for any dynamic symbol. */
4229 1.1 christos dyn_i = NULL;
4230 1.1 christos if (h)
4231 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE);
4232 1.1 christos
4233 1.1 christos if (dyn_i && dyn_i->want_plt2)
4234 1.1 christos {
4235 1.1 christos /* Should have caught this earlier. */
4236 1.1 christos BFD_ASSERT (rel->r_addend == 0);
4237 1.1 christos
4238 1.1 christos value = (ia64_info->root.splt->output_section->vma
4239 1.1 christos + ia64_info->root.splt->output_offset
4240 1.1 christos + dyn_i->plt2_offset);
4241 1.1 christos }
4242 1.1 christos else
4243 1.1 christos {
4244 1.1 christos /* Since there's no PLT entry, Validate that this is
4245 1.1 christos locally defined. */
4246 1.1 christos BFD_ASSERT (undef_weak_ref || sym_sec->output_section != NULL);
4247 1.1 christos
4248 1.1 christos /* If the symbol is undef_weak, we shouldn't be trying
4249 1.1 christos to call it. There's every chance that we'd wind up
4250 1.1 christos with an out-of-range fixup here. Don't bother setting
4251 1.1 christos any value at all. */
4252 1.1 christos if (undef_weak_ref)
4253 1.1 christos continue;
4254 1.1 christos }
4255 1.1 christos goto finish_pcrel;
4256 1.1 christos
4257 1.1 christos case R_IA64_PCREL21BI:
4258 1.1 christos case R_IA64_PCREL21F:
4259 1.1 christos case R_IA64_PCREL21M:
4260 1.1 christos case R_IA64_PCREL22:
4261 1.1 christos case R_IA64_PCREL64I:
4262 1.1 christos /* The PCREL21BI reloc is specifically not intended for use with
4263 1.1 christos dynamic relocs. PCREL21F and PCREL21M are used for speculation
4264 1.1 christos fixup code, and thus probably ought not be dynamic. The
4265 1.1.1.4 christos PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4266 1.1.1.5 christos if (dynamic_symbol_p)
4267 1.1 christos {
4268 1.1.1.4 christos const char *msg;
4269 1.1.1.5 christos
4270 1.1 christos if (r_type == R_IA64_PCREL21BI)
4271 1.1.1.4 christos /* xgettext:c-format */
4272 1.1.1.5 christos msg = _("%pB: @internal branch to dynamic symbol %s");
4273 1.1.1.4 christos else if (r_type == R_IA64_PCREL21F || r_type == R_IA64_PCREL21M)
4274 1.1.1.4 christos /* xgettext:c-format */
4275 1.1.1.4 christos msg = _("%pB: speculation fixup to dynamic symbol %s");
4276 1.1.1.4 christos else
4277 1.1.1.4 christos /* xgettext:c-format */
4278 1.1.1.4 christos msg = _("%pB: @pcrel relocation against dynamic symbol %s");
4279 1.1 christos _bfd_error_handler (msg, input_bfd,
4280 1.1 christos h ? h->root.root.string
4281 1.1 christos : bfd_elf_sym_name (input_bfd,
4282 1.1 christos symtab_hdr,
4283 1.1 christos sym,
4284 1.1 christos sym_sec));
4285 1.1 christos ret_val = FALSE;
4286 1.1 christos continue;
4287 1.1 christos }
4288 1.1 christos goto finish_pcrel;
4289 1.1 christos
4290 1.1 christos finish_pcrel:
4291 1.1 christos /* Make pc-relative. */
4292 1.1 christos value -= (input_section->output_section->vma
4293 1.1 christos + input_section->output_offset
4294 1.1 christos + rel->r_offset) & ~ (bfd_vma) 0x3;
4295 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4296 1.1 christos break;
4297 1.1 christos
4298 1.1 christos case R_IA64_SEGREL32MSB:
4299 1.1 christos case R_IA64_SEGREL32LSB:
4300 1.1 christos case R_IA64_SEGREL64MSB:
4301 1.1 christos case R_IA64_SEGREL64LSB:
4302 1.1 christos {
4303 1.1 christos /* Find the segment that contains the output_section. */
4304 1.1 christos Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section
4305 1.1 christos (output_bfd, input_section->output_section);
4306 1.1 christos
4307 1.1 christos if (p == NULL)
4308 1.1 christos {
4309 1.1 christos r = bfd_reloc_notsupported;
4310 1.1 christos }
4311 1.1 christos else
4312 1.1 christos {
4313 1.1 christos /* The VMA of the segment is the vaddr of the associated
4314 1.1 christos program header. */
4315 1.1 christos if (value > p->p_vaddr)
4316 1.1 christos value -= p->p_vaddr;
4317 1.1 christos else
4318 1.1 christos value = 0;
4319 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4320 1.1 christos }
4321 1.1 christos break;
4322 1.1 christos }
4323 1.1 christos
4324 1.1 christos case R_IA64_SECREL32MSB:
4325 1.1 christos case R_IA64_SECREL32LSB:
4326 1.1 christos case R_IA64_SECREL64MSB:
4327 1.1 christos case R_IA64_SECREL64LSB:
4328 1.1 christos /* Make output-section relative to section where the symbol
4329 1.1 christos is defined. PR 475 */
4330 1.1 christos if (sym_sec)
4331 1.1 christos value -= sym_sec->output_section->vma;
4332 1.1.1.2 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4333 1.1 christos break;
4334 1.1 christos
4335 1.1 christos case R_IA64_IPLTMSB:
4336 1.1 christos case R_IA64_IPLTLSB:
4337 1.1 christos /* Install a dynamic relocation for this reloc. */
4338 1.1 christos if ((dynamic_symbol_p || bfd_link_pic (info))
4339 1.1 christos && (input_section->flags & SEC_ALLOC) != 0)
4340 1.1 christos {
4341 1.1 christos BFD_ASSERT (srel != NULL);
4342 1.1 christos
4343 1.1 christos /* If we don't need dynamic symbol lookup, install two
4344 1.1 christos RELATIVE relocations. */
4345 1.1 christos if (!dynamic_symbol_p)
4346 1.1 christos {
4347 1.1 christos unsigned int dyn_r_type;
4348 1.1 christos
4349 1.1 christos if (r_type == R_IA64_IPLTMSB)
4350 1.1 christos dyn_r_type = R_IA64_REL64MSB;
4351 1.1 christos else
4352 1.1 christos dyn_r_type = R_IA64_REL64LSB;
4353 1.1 christos
4354 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info,
4355 1.1 christos input_section,
4356 1.1 christos srel, rel->r_offset,
4357 1.1 christos dyn_r_type, 0, value);
4358 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info,
4359 1.1 christos input_section,
4360 1.1 christos srel, rel->r_offset + 8,
4361 1.1 christos dyn_r_type, 0, gp_val);
4362 1.1 christos }
4363 1.1 christos else
4364 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4365 1.1 christos srel, rel->r_offset, r_type,
4366 1.1 christos h->dynindx, rel->r_addend);
4367 1.1 christos }
4368 1.1 christos
4369 1.1 christos if (r_type == R_IA64_IPLTMSB)
4370 1.1 christos r_type = R_IA64_DIR64MSB;
4371 1.1 christos else
4372 1.1 christos r_type = R_IA64_DIR64LSB;
4373 1.1 christos ia64_elf_install_value (hit_addr, value, r_type);
4374 1.1 christos r = ia64_elf_install_value (hit_addr + 8, gp_val, r_type);
4375 1.1 christos break;
4376 1.1 christos
4377 1.1 christos case R_IA64_TPREL14:
4378 1.1 christos case R_IA64_TPREL22:
4379 1.1 christos case R_IA64_TPREL64I:
4380 1.1 christos if (elf_hash_table (info)->tls_sec == NULL)
4381 1.1 christos goto missing_tls_sec;
4382 1.1 christos value -= elfNN_ia64_tprel_base (info);
4383 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4384 1.1 christos break;
4385 1.1 christos
4386 1.1 christos case R_IA64_DTPREL14:
4387 1.1 christos case R_IA64_DTPREL22:
4388 1.1 christos case R_IA64_DTPREL64I:
4389 1.1 christos case R_IA64_DTPREL32LSB:
4390 1.1 christos case R_IA64_DTPREL32MSB:
4391 1.1 christos case R_IA64_DTPREL64LSB:
4392 1.1 christos case R_IA64_DTPREL64MSB:
4393 1.1 christos if (elf_hash_table (info)->tls_sec == NULL)
4394 1.1 christos goto missing_tls_sec;
4395 1.1 christos value -= elfNN_ia64_dtprel_base (info);
4396 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4397 1.1 christos break;
4398 1.1 christos
4399 1.1 christos case R_IA64_LTOFF_TPREL22:
4400 1.1 christos case R_IA64_LTOFF_DTPMOD22:
4401 1.1 christos case R_IA64_LTOFF_DTPREL22:
4402 1.1 christos {
4403 1.1 christos int got_r_type;
4404 1.1 christos long dynindx = h ? h->dynindx : -1;
4405 1.1 christos bfd_vma r_addend = rel->r_addend;
4406 1.1 christos
4407 1.1 christos switch (r_type)
4408 1.1 christos {
4409 1.1.1.2 christos default:
4410 1.1 christos case R_IA64_LTOFF_TPREL22:
4411 1.1 christos if (!dynamic_symbol_p)
4412 1.1 christos {
4413 1.1 christos if (elf_hash_table (info)->tls_sec == NULL)
4414 1.1 christos goto missing_tls_sec;
4415 1.1 christos if (!bfd_link_pic (info))
4416 1.1 christos value -= elfNN_ia64_tprel_base (info);
4417 1.1 christos else
4418 1.1 christos {
4419 1.1 christos r_addend += value - elfNN_ia64_dtprel_base (info);
4420 1.1.1.2 christos dynindx = 0;
4421 1.1 christos }
4422 1.1 christos }
4423 1.1 christos got_r_type = R_IA64_TPREL64LSB;
4424 1.1 christos break;
4425 1.1 christos case R_IA64_LTOFF_DTPMOD22:
4426 1.1 christos if (!dynamic_symbol_p && !bfd_link_pic (info))
4427 1.1 christos value = 1;
4428 1.1 christos got_r_type = R_IA64_DTPMOD64LSB;
4429 1.1 christos break;
4430 1.1 christos case R_IA64_LTOFF_DTPREL22:
4431 1.1 christos if (!dynamic_symbol_p)
4432 1.1 christos {
4433 1.1 christos if (elf_hash_table (info)->tls_sec == NULL)
4434 1.1 christos goto missing_tls_sec;
4435 1.1 christos value -= elfNN_ia64_dtprel_base (info);
4436 1.1 christos }
4437 1.1 christos got_r_type = R_IA64_DTPRELNNLSB;
4438 1.1 christos break;
4439 1.1 christos }
4440 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4441 1.1 christos value = set_got_entry (input_bfd, info, dyn_i, dynindx, r_addend,
4442 1.1 christos value, got_r_type);
4443 1.1 christos value -= gp_val;
4444 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4445 1.1 christos }
4446 1.1 christos break;
4447 1.1 christos
4448 1.1 christos default:
4449 1.1 christos r = bfd_reloc_notsupported;
4450 1.1 christos break;
4451 1.1 christos }
4452 1.1 christos
4453 1.1 christos switch (r)
4454 1.1 christos {
4455 1.1 christos case bfd_reloc_ok:
4456 1.1 christos break;
4457 1.1 christos
4458 1.1 christos case bfd_reloc_undefined:
4459 1.1 christos /* This can happen for global table relative relocs if
4460 1.1 christos __gp is undefined. This is a panic situation so we
4461 1.1 christos don't try to continue. */
4462 1.1 christos (*info->callbacks->undefined_symbol)
4463 1.1 christos (info, "__gp", input_bfd, input_section, rel->r_offset, 1);
4464 1.1 christos return FALSE;
4465 1.1 christos
4466 1.1 christos case bfd_reloc_notsupported:
4467 1.1 christos {
4468 1.1 christos const char *name;
4469 1.1.1.3 christos
4470 1.1.1.3 christos if (h)
4471 1.1.1.3 christos name = h->root.root.string;
4472 1.1 christos else
4473 1.1 christos name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4474 1.1 christos sym_sec);
4475 1.1 christos (*info->callbacks->warning) (info, _("unsupported reloc"),
4476 1.1 christos name, input_bfd,
4477 1.1 christos input_section, rel->r_offset);
4478 1.1 christos ret_val = FALSE;
4479 1.1 christos }
4480 1.1 christos break;
4481 1.1 christos
4482 1.1 christos case bfd_reloc_dangerous:
4483 1.1 christos case bfd_reloc_outofrange:
4484 1.1 christos case bfd_reloc_overflow:
4485 1.1 christos default:
4486 1.1 christos missing_tls_sec:
4487 1.1 christos {
4488 1.1 christos const char *name;
4489 1.1 christos
4490 1.1 christos if (h)
4491 1.1 christos name = h->root.root.string;
4492 1.1 christos else
4493 1.1 christos name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4494 1.1 christos sym_sec);
4495 1.1 christos
4496 1.1 christos switch (r_type)
4497 1.1 christos {
4498 1.1 christos case R_IA64_TPREL14:
4499 1.1 christos case R_IA64_TPREL22:
4500 1.1 christos case R_IA64_TPREL64I:
4501 1.1 christos case R_IA64_DTPREL14:
4502 1.1 christos case R_IA64_DTPREL22:
4503 1.1 christos case R_IA64_DTPREL64I:
4504 1.1 christos case R_IA64_DTPREL32LSB:
4505 1.1.1.4 christos case R_IA64_DTPREL32MSB:
4506 1.1.1.4 christos case R_IA64_DTPREL64LSB:
4507 1.1.1.5 christos case R_IA64_DTPREL64MSB:
4508 1.1.1.5 christos case R_IA64_LTOFF_TPREL22:
4509 1.1.1.4 christos case R_IA64_LTOFF_DTPMOD22:
4510 1.1.1.5 christos case R_IA64_LTOFF_DTPREL22:
4511 1.1 christos _bfd_error_handler
4512 1.1 christos /* xgettext:c-format */
4513 1.1 christos (_("%pB: missing TLS section for relocation %s against `%s'"
4514 1.1 christos " at %#" PRIx64 " in section `%pA'."),
4515 1.1 christos input_bfd, howto->name, name,
4516 1.1 christos (uint64_t) rel->r_offset, input_section);
4517 1.1 christos break;
4518 1.1 christos
4519 1.1 christos case R_IA64_PCREL21B:
4520 1.1 christos case R_IA64_PCREL21BI:
4521 1.1 christos case R_IA64_PCREL21M:
4522 1.1.1.4 christos case R_IA64_PCREL21F:
4523 1.1.1.4 christos if (is_elf_hash_table (info->hash))
4524 1.1.1.5 christos {
4525 1.1.1.5 christos /* Relaxtion is always performed for ELF output.
4526 1.1.1.5 christos Overflow failures for those relocations mean
4527 1.1.1.5 christos that the section is too big to relax. */
4528 1.1.1.5 christos _bfd_error_handler
4529 1.1 christos /* xgettext:c-format */
4530 1.1 christos (_("%pB: Can't relax br (%s) to `%s' at %#" PRIx64
4531 1.1.1.4 christos " in section `%pA' with size %#" PRIx64
4532 1.1 christos " (> 0x1000000)."),
4533 1.1.1.3 christos input_bfd, howto->name, name, (uint64_t) rel->r_offset,
4534 1.1.1.3 christos input_section, (uint64_t) input_section->size);
4535 1.1.1.3 christos break;
4536 1.1.1.3 christos }
4537 1.1.1.3 christos /* Fall through. */
4538 1.1.1.3 christos default:
4539 1.1.1.3 christos (*info->callbacks->reloc_overflow) (info,
4540 1.1.1.3 christos &h->root,
4541 1.1 christos name,
4542 1.1 christos howto->name,
4543 1.1 christos (bfd_vma) 0,
4544 1.1 christos input_bfd,
4545 1.1 christos input_section,
4546 1.1 christos rel->r_offset);
4547 1.1 christos break;
4548 1.1 christos }
4549 1.1 christos
4550 1.1 christos ret_val = FALSE;
4551 1.1 christos }
4552 1.1 christos break;
4553 1.1 christos }
4554 1.1 christos }
4555 1.1 christos
4556 1.1 christos return ret_val;
4557 1.1 christos }
4558 1.1 christos
4559 1.1 christos static bfd_boolean
4560 1.1 christos elfNN_ia64_finish_dynamic_symbol (bfd *output_bfd,
4561 1.1 christos struct bfd_link_info *info,
4562 1.1 christos struct elf_link_hash_entry *h,
4563 1.1 christos Elf_Internal_Sym *sym)
4564 1.1 christos {
4565 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
4566 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
4567 1.1 christos
4568 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
4569 1.1 christos if (ia64_info == NULL)
4570 1.1 christos return FALSE;
4571 1.1 christos
4572 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE);
4573 1.1 christos
4574 1.1 christos /* Fill in the PLT data, if required. */
4575 1.1 christos if (dyn_i && dyn_i->want_plt)
4576 1.1 christos {
4577 1.1 christos Elf_Internal_Rela outrel;
4578 1.1 christos bfd_byte *loc;
4579 1.1 christos asection *plt_sec;
4580 1.1 christos bfd_vma plt_addr, pltoff_addr, gp_val, plt_index;
4581 1.1 christos
4582 1.1 christos gp_val = _bfd_get_gp_value (output_bfd);
4583 1.1 christos
4584 1.1 christos /* Initialize the minimal PLT entry. */
4585 1.1 christos
4586 1.1 christos plt_index = (dyn_i->plt_offset - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
4587 1.1 christos plt_sec = ia64_info->root.splt;
4588 1.1 christos loc = plt_sec->contents + dyn_i->plt_offset;
4589 1.1 christos
4590 1.1 christos memcpy (loc, plt_min_entry, PLT_MIN_ENTRY_SIZE);
4591 1.1 christos ia64_elf_install_value (loc, plt_index, R_IA64_IMM22);
4592 1.1 christos ia64_elf_install_value (loc+2, -dyn_i->plt_offset, R_IA64_PCREL21B);
4593 1.1 christos
4594 1.1 christos plt_addr = (plt_sec->output_section->vma
4595 1.1 christos + plt_sec->output_offset
4596 1.1 christos + dyn_i->plt_offset);
4597 1.1 christos pltoff_addr = set_pltoff_entry (output_bfd, info, dyn_i, plt_addr, TRUE);
4598 1.1 christos
4599 1.1 christos /* Initialize the FULL PLT entry, if needed. */
4600 1.1 christos if (dyn_i->want_plt2)
4601 1.1 christos {
4602 1.1 christos loc = plt_sec->contents + dyn_i->plt2_offset;
4603 1.1 christos
4604 1.1 christos memcpy (loc, plt_full_entry, PLT_FULL_ENTRY_SIZE);
4605 1.1 christos ia64_elf_install_value (loc, pltoff_addr - gp_val, R_IA64_IMM22);
4606 1.1 christos
4607 1.1 christos /* Mark the symbol as undefined, rather than as defined in the
4608 1.1 christos plt section. Leave the value alone. */
4609 1.1 christos /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4610 1.1 christos first place. But perhaps elflink.c did some for us. */
4611 1.1 christos if (!h->def_regular)
4612 1.1 christos sym->st_shndx = SHN_UNDEF;
4613 1.1 christos }
4614 1.1 christos
4615 1.1 christos /* Create the dynamic relocation. */
4616 1.1 christos outrel.r_offset = pltoff_addr;
4617 1.1 christos if (bfd_little_endian (output_bfd))
4618 1.1 christos outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTLSB);
4619 1.1 christos else
4620 1.1 christos outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTMSB);
4621 1.1 christos outrel.r_addend = 0;
4622 1.1 christos
4623 1.1 christos /* This is fun. In the .IA_64.pltoff section, we've got entries
4624 1.1 christos that correspond both to real PLT entries, and those that
4625 1.1 christos happened to resolve to local symbols but need to be created
4626 1.1 christos to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4627 1.1 christos relocations for the real PLT should come at the end of the
4628 1.1 christos section, so that they can be indexed by plt entry at runtime.
4629 1.1 christos
4630 1.1 christos We emitted all of the relocations for the non-PLT @pltoff
4631 1.1 christos entries during relocate_section. So we can consider the
4632 1.1 christos existing sec->reloc_count to be the base of the array of
4633 1.1 christos PLT relocations. */
4634 1.1 christos
4635 1.1 christos loc = ia64_info->rel_pltoff_sec->contents;
4636 1.1.1.2 christos loc += ((ia64_info->rel_pltoff_sec->reloc_count + plt_index)
4637 1.1 christos * sizeof (ElfNN_External_Rela));
4638 1.1 christos bfd_elfNN_swap_reloca_out (output_bfd, &outrel, loc);
4639 1.1 christos }
4640 1.1 christos
4641 1.1 christos /* Mark some specially defined symbols as absolute. */
4642 1.1 christos if (h == ia64_info->root.hdynamic
4643 1.1 christos || h == ia64_info->root.hgot
4644 1.1 christos || h == ia64_info->root.hplt)
4645 1.1 christos sym->st_shndx = SHN_ABS;
4646 1.1 christos
4647 1.1 christos return TRUE;
4648 1.1 christos }
4649 1.1 christos
4650 1.1 christos static bfd_boolean
4651 1.1 christos elfNN_ia64_finish_dynamic_sections (bfd *abfd,
4652 1.1 christos struct bfd_link_info *info)
4653 1.1 christos {
4654 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
4655 1.1 christos bfd *dynobj;
4656 1.1 christos
4657 1.1.1.4 christos ia64_info = elfNN_ia64_hash_table (info);
4658 1.1 christos if (ia64_info == NULL)
4659 1.1 christos return FALSE;
4660 1.1 christos
4661 1.1 christos dynobj = ia64_info->root.dynobj;
4662 1.1 christos
4663 1.1 christos if (ia64_info->root.dynamic_sections_created)
4664 1.1.1.4 christos {
4665 1.1 christos ElfNN_External_Dyn *dyncon, *dynconend;
4666 1.1 christos asection *sdyn, *sgotplt;
4667 1.1 christos bfd_vma gp_val;
4668 1.1 christos
4669 1.1 christos sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4670 1.1 christos sgotplt = ia64_info->root.sgotplt;
4671 1.1 christos BFD_ASSERT (sdyn != NULL);
4672 1.1 christos dyncon = (ElfNN_External_Dyn *) sdyn->contents;
4673 1.1 christos dynconend = (ElfNN_External_Dyn *) (sdyn->contents + sdyn->size);
4674 1.1 christos
4675 1.1 christos gp_val = _bfd_get_gp_value (abfd);
4676 1.1 christos
4677 1.1 christos for (; dyncon < dynconend; dyncon++)
4678 1.1 christos {
4679 1.1 christos Elf_Internal_Dyn dyn;
4680 1.1 christos
4681 1.1 christos bfd_elfNN_swap_dyn_in (dynobj, dyncon, &dyn);
4682 1.1 christos
4683 1.1 christos switch (dyn.d_tag)
4684 1.1 christos {
4685 1.1 christos case DT_PLTGOT:
4686 1.1 christos dyn.d_un.d_ptr = gp_val;
4687 1.1 christos break;
4688 1.1 christos
4689 1.1 christos case DT_PLTRELSZ:
4690 1.1 christos dyn.d_un.d_val = (ia64_info->minplt_entries
4691 1.1 christos * sizeof (ElfNN_External_Rela));
4692 1.1 christos break;
4693 1.1 christos
4694 1.1 christos case DT_JMPREL:
4695 1.1 christos /* See the comment above in finish_dynamic_symbol. */
4696 1.1 christos dyn.d_un.d_ptr = (ia64_info->rel_pltoff_sec->output_section->vma
4697 1.1 christos + ia64_info->rel_pltoff_sec->output_offset
4698 1.1 christos + (ia64_info->rel_pltoff_sec->reloc_count
4699 1.1 christos * sizeof (ElfNN_External_Rela)));
4700 1.1 christos break;
4701 1.1 christos
4702 1.1 christos case DT_IA_64_PLT_RESERVE:
4703 1.1 christos dyn.d_un.d_ptr = (sgotplt->output_section->vma
4704 1.1 christos + sgotplt->output_offset);
4705 1.1 christos break;
4706 1.1 christos }
4707 1.1 christos
4708 1.1 christos bfd_elfNN_swap_dyn_out (abfd, &dyn, dyncon);
4709 1.1 christos }
4710 1.1 christos
4711 1.1 christos /* Initialize the PLT0 entry. */
4712 1.1 christos if (ia64_info->root.splt)
4713 1.1 christos {
4714 1.1 christos bfd_byte *loc = ia64_info->root.splt->contents;
4715 1.1 christos bfd_vma pltres;
4716 1.1 christos
4717 1.1 christos memcpy (loc, plt_header, PLT_HEADER_SIZE);
4718 1.1 christos
4719 1.1 christos pltres = (sgotplt->output_section->vma
4720 1.1 christos + sgotplt->output_offset
4721 1.1 christos - gp_val);
4722 1.1 christos
4723 1.1 christos ia64_elf_install_value (loc+1, pltres, R_IA64_GPREL22);
4724 1.1 christos }
4725 1.1 christos }
4726 1.1 christos
4727 1.1 christos return TRUE;
4728 1.1 christos }
4729 1.1 christos
4730 1.1 christos /* ELF file flag handling: */
4732 1.1 christos
4733 1.1 christos /* Function to keep IA-64 specific file flags. */
4734 1.1 christos static bfd_boolean
4735 1.1 christos elfNN_ia64_set_private_flags (bfd *abfd, flagword flags)
4736 1.1 christos {
4737 1.1 christos BFD_ASSERT (!elf_flags_init (abfd)
4738 1.1 christos || elf_elfheader (abfd)->e_flags == flags);
4739 1.1 christos
4740 1.1 christos elf_elfheader (abfd)->e_flags = flags;
4741 1.1.1.4 christos elf_flags_init (abfd) = TRUE;
4742 1.1 christos return TRUE;
4743 1.1.1.4 christos }
4744 1.1 christos
4745 1.1 christos /* Merge backend specific data from an object file to the output
4746 1.1 christos object file when linking. */
4747 1.1 christos static bfd_boolean
4748 1.1 christos elfNN_ia64_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
4749 1.1 christos {
4750 1.1 christos bfd *obfd = info->output_bfd;
4751 1.1 christos flagword out_flags;
4752 1.1 christos flagword in_flags;
4753 1.1 christos bfd_boolean ok = TRUE;
4754 1.1 christos
4755 1.1 christos /* Don't even pretend to support mixed-format linking. */
4756 1.1 christos if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
4757 1.1 christos || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
4758 1.1 christos return FALSE;
4759 1.1 christos
4760 1.1 christos in_flags = elf_elfheader (ibfd)->e_flags;
4761 1.1 christos out_flags = elf_elfheader (obfd)->e_flags;
4762 1.1 christos
4763 1.1 christos if (! elf_flags_init (obfd))
4764 1.1 christos {
4765 1.1 christos elf_flags_init (obfd) = TRUE;
4766 1.1 christos elf_elfheader (obfd)->e_flags = in_flags;
4767 1.1 christos
4768 1.1 christos if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
4769 1.1 christos && bfd_get_arch_info (obfd)->the_default)
4770 1.1 christos {
4771 1.1 christos return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
4772 1.1 christos bfd_get_mach (ibfd));
4773 1.1 christos }
4774 1.1 christos
4775 1.1 christos return TRUE;
4776 1.1 christos }
4777 1.1 christos
4778 1.1 christos /* Check flag compatibility. */
4779 1.1 christos if (in_flags == out_flags)
4780 1.1 christos return TRUE;
4781 1.1.1.4 christos
4782 1.1.1.5 christos /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4783 1.1 christos if (!(in_flags & EF_IA_64_REDUCEDFP) && (out_flags & EF_IA_64_REDUCEDFP))
4784 1.1 christos elf_elfheader (obfd)->e_flags &= ~EF_IA_64_REDUCEDFP;
4785 1.1 christos
4786 1.1 christos if ((in_flags & EF_IA_64_TRAPNIL) != (out_flags & EF_IA_64_TRAPNIL))
4787 1.1 christos {
4788 1.1 christos _bfd_error_handler
4789 1.1 christos (_("%pB: linking trap-on-NULL-dereference with non-trapping files"),
4790 1.1.1.4 christos ibfd);
4791 1.1.1.5 christos
4792 1.1 christos bfd_set_error (bfd_error_bad_value);
4793 1.1 christos ok = FALSE;
4794 1.1 christos }
4795 1.1 christos if ((in_flags & EF_IA_64_BE) != (out_flags & EF_IA_64_BE))
4796 1.1 christos {
4797 1.1 christos _bfd_error_handler
4798 1.1 christos (_("%pB: linking big-endian files with little-endian files"),
4799 1.1.1.4 christos ibfd);
4800 1.1.1.5 christos
4801 1.1 christos bfd_set_error (bfd_error_bad_value);
4802 1.1 christos ok = FALSE;
4803 1.1 christos }
4804 1.1 christos if ((in_flags & EF_IA_64_ABI64) != (out_flags & EF_IA_64_ABI64))
4805 1.1 christos {
4806 1.1 christos _bfd_error_handler
4807 1.1 christos (_("%pB: linking 64-bit files with 32-bit files"),
4808 1.1.1.4 christos ibfd);
4809 1.1.1.5 christos
4810 1.1 christos bfd_set_error (bfd_error_bad_value);
4811 1.1 christos ok = FALSE;
4812 1.1 christos }
4813 1.1 christos if ((in_flags & EF_IA_64_CONS_GP) != (out_flags & EF_IA_64_CONS_GP))
4814 1.1 christos {
4815 1.1 christos _bfd_error_handler
4816 1.1 christos (_("%pB: linking constant-gp files with non-constant-gp files"),
4817 1.1 christos ibfd);
4818 1.1.1.4 christos
4819 1.1.1.5 christos bfd_set_error (bfd_error_bad_value);
4820 1.1 christos ok = FALSE;
4821 1.1 christos }
4822 1.1 christos if ((in_flags & EF_IA_64_NOFUNCDESC_CONS_GP)
4823 1.1 christos != (out_flags & EF_IA_64_NOFUNCDESC_CONS_GP))
4824 1.1 christos {
4825 1.1 christos _bfd_error_handler
4826 1.1 christos (_("%pB: linking auto-pic files with non-auto-pic files"),
4827 1.1 christos ibfd);
4828 1.1 christos
4829 1.1 christos bfd_set_error (bfd_error_bad_value);
4830 1.1 christos ok = FALSE;
4831 1.1 christos }
4832 1.1 christos
4833 1.1 christos return ok;
4834 1.1 christos }
4835 1.1 christos
4836 1.1 christos static bfd_boolean
4837 1.1 christos elfNN_ia64_print_private_bfd_data (bfd *abfd, void * ptr)
4838 1.1 christos {
4839 1.1 christos FILE *file = (FILE *) ptr;
4840 1.1 christos flagword flags = elf_elfheader (abfd)->e_flags;
4841 1.1 christos
4842 1.1 christos BFD_ASSERT (abfd != NULL && ptr != NULL);
4843 1.1 christos
4844 1.1 christos fprintf (file, "private flags = %s%s%s%s%s%s%s%s\n",
4845 1.1 christos (flags & EF_IA_64_TRAPNIL) ? "TRAPNIL, " : "",
4846 1.1 christos (flags & EF_IA_64_EXT) ? "EXT, " : "",
4847 1.1 christos (flags & EF_IA_64_BE) ? "BE, " : "LE, ",
4848 1.1 christos (flags & EF_IA_64_REDUCEDFP) ? "REDUCEDFP, " : "",
4849 1.1 christos (flags & EF_IA_64_CONS_GP) ? "CONS_GP, " : "",
4850 1.1 christos (flags & EF_IA_64_NOFUNCDESC_CONS_GP) ? "NOFUNCDESC_CONS_GP, " : "",
4851 1.1 christos (flags & EF_IA_64_ABSOLUTE) ? "ABSOLUTE, " : "",
4852 1.1.1.2 christos (flags & EF_IA_64_ABI64) ? "ABI64" : "ABI32");
4853 1.1.1.2 christos
4854 1.1.1.2 christos _bfd_elf_print_private_bfd_data (abfd, ptr);
4855 1.1 christos return TRUE;
4856 1.1 christos }
4857 1.1 christos
4858 1.1 christos static enum elf_reloc_type_class
4859 1.1 christos elfNN_ia64_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4860 1.1 christos const asection *rel_sec ATTRIBUTE_UNUSED,
4861 1.1 christos const Elf_Internal_Rela *rela)
4862 1.1 christos {
4863 1.1 christos switch ((int) ELFNN_R_TYPE (rela->r_info))
4864 1.1 christos {
4865 1.1 christos case R_IA64_REL32MSB:
4866 1.1 christos case R_IA64_REL32LSB:
4867 1.1 christos case R_IA64_REL64MSB:
4868 1.1 christos case R_IA64_REL64LSB:
4869 1.1 christos return reloc_class_relative;
4870 1.1 christos case R_IA64_IPLTMSB:
4871 1.1 christos case R_IA64_IPLTLSB:
4872 1.1 christos return reloc_class_plt;
4873 1.1 christos case R_IA64_COPY:
4874 1.1 christos return reloc_class_copy;
4875 1.1.1.4 christos default:
4876 1.1 christos return reloc_class_normal;
4877 1.1.1.4 christos }
4878 1.1 christos }
4879 1.1 christos
4880 1.1 christos static const struct bfd_elf_special_section elfNN_ia64_special_sections[] =
4881 1.1 christos {
4882 1.1 christos { STRING_COMMA_LEN (".sbss"), -1, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
4883 1.1 christos { STRING_COMMA_LEN (".sdata"), -1, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
4884 1.1 christos { NULL, 0, 0, 0, 0 }
4885 1.1 christos };
4886 1.1 christos
4887 1.1 christos static bfd_boolean
4888 1.1 christos elfNN_ia64_object_p (bfd *abfd)
4889 1.1 christos {
4890 1.1 christos asection *sec;
4891 1.1 christos asection *group, *unwi, *unw;
4892 1.1 christos flagword flags;
4893 1.1 christos const char *name;
4894 1.1 christos char *unwi_name, *unw_name;
4895 1.1 christos bfd_size_type amt;
4896 1.1 christos
4897 1.1 christos if (abfd->flags & DYNAMIC)
4898 1.1 christos return TRUE;
4899 1.1 christos
4900 1.1 christos /* Flags for fake group section. */
4901 1.1 christos flags = (SEC_LINKER_CREATED | SEC_GROUP | SEC_LINK_ONCE
4902 1.1 christos | SEC_EXCLUDE);
4903 1.1 christos
4904 1.1 christos /* We add a fake section group for each .gnu.linkonce.t.* section,
4905 1.1 christos which isn't in a section group, and its unwind sections. */
4906 1.1 christos for (sec = abfd->sections; sec != NULL; sec = sec->next)
4907 1.1 christos {
4908 1.1 christos if (elf_sec_group (sec) == NULL
4909 1.1 christos && ((sec->flags & (SEC_LINK_ONCE | SEC_CODE | SEC_GROUP))
4910 1.1 christos == (SEC_LINK_ONCE | SEC_CODE))
4911 1.1 christos && CONST_STRNEQ (sec->name, ".gnu.linkonce.t."))
4912 1.1 christos {
4913 1.1 christos name = sec->name + 16;
4914 1.1 christos
4915 1.1 christos amt = strlen (name) + sizeof (".gnu.linkonce.ia64unwi.");
4916 1.1 christos unwi_name = bfd_alloc (abfd, amt);
4917 1.1 christos if (!unwi_name)
4918 1.1 christos return FALSE;
4919 1.1 christos
4920 1.1 christos strcpy (stpcpy (unwi_name, ".gnu.linkonce.ia64unwi."), name);
4921 1.1 christos unwi = bfd_get_section_by_name (abfd, unwi_name);
4922 1.1 christos
4923 1.1 christos amt = strlen (name) + sizeof (".gnu.linkonce.ia64unw.");
4924 1.1 christos unw_name = bfd_alloc (abfd, amt);
4925 1.1 christos if (!unw_name)
4926 1.1 christos return FALSE;
4927 1.1 christos
4928 1.1 christos strcpy (stpcpy (unw_name, ".gnu.linkonce.ia64unw."), name);
4929 1.1 christos unw = bfd_get_section_by_name (abfd, unw_name);
4930 1.1 christos
4931 1.1 christos /* We need to create a fake group section for it and its
4932 1.1 christos unwind sections. */
4933 1.1 christos group = bfd_make_section_anyway_with_flags (abfd, name,
4934 1.1 christos flags);
4935 1.1 christos if (group == NULL)
4936 1.1 christos return FALSE;
4937 1.1 christos
4938 1.1 christos /* Move the fake group section to the beginning. */
4939 1.1 christos bfd_section_list_remove (abfd, group);
4940 1.1 christos bfd_section_list_prepend (abfd, group);
4941 1.1 christos
4942 1.1 christos elf_next_in_group (group) = sec;
4943 1.1 christos
4944 1.1 christos elf_group_name (sec) = name;
4945 1.1 christos elf_next_in_group (sec) = sec;
4946 1.1 christos elf_sec_group (sec) = group;
4947 1.1 christos
4948 1.1 christos if (unwi)
4949 1.1 christos {
4950 1.1 christos elf_group_name (unwi) = name;
4951 1.1 christos elf_next_in_group (unwi) = sec;
4952 1.1 christos elf_next_in_group (sec) = unwi;
4953 1.1 christos elf_sec_group (unwi) = group;
4954 1.1 christos }
4955 1.1 christos
4956 1.1 christos if (unw)
4957 1.1 christos {
4958 1.1 christos elf_group_name (unw) = name;
4959 1.1 christos if (unwi)
4960 1.1 christos {
4961 1.1 christos elf_next_in_group (unw) = elf_next_in_group (unwi);
4962 1.1 christos elf_next_in_group (unwi) = unw;
4963 1.1 christos }
4964 1.1 christos else
4965 1.1 christos {
4966 1.1 christos elf_next_in_group (unw) = sec;
4967 1.1 christos elf_next_in_group (sec) = unw;
4968 1.1 christos }
4969 1.1 christos elf_sec_group (unw) = group;
4970 1.1 christos }
4971 1.1 christos
4972 1.1 christos /* Fake SHT_GROUP section header. */
4973 1.1 christos elf_section_data (group)->this_hdr.bfd_section = group;
4974 1.1 christos elf_section_data (group)->this_hdr.sh_type = SHT_GROUP;
4975 1.1 christos }
4976 1.1.1.2 christos }
4977 1.1.1.2 christos return TRUE;
4978 1.1 christos }
4979 1.1 christos
4980 1.1 christos static bfd_boolean
4981 1.1 christos elfNN_ia64_hpux_vec (const bfd_target *vec)
4982 1.1 christos {
4983 1.1 christos extern const bfd_target ia64_elfNN_hpux_be_vec;
4984 1.1 christos return (vec == &ia64_elfNN_hpux_be_vec);
4985 1.1 christos }
4986 1.1 christos
4987 1.1 christos static void
4988 1.1 christos elfNN_hpux_post_process_headers (bfd *abfd,
4989 1.1 christos struct bfd_link_info *info ATTRIBUTE_UNUSED)
4990 1.1 christos {
4991 1.1 christos Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd);
4992 1.1 christos
4993 1.1 christos i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi;
4994 1.1 christos i_ehdrp->e_ident[EI_ABIVERSION] = 1;
4995 1.1 christos }
4996 1.1 christos
4997 1.1 christos static bfd_boolean
4998 1.1 christos elfNN_hpux_backend_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
4999 1.1 christos asection *sec, int *retval)
5000 1.1 christos {
5001 1.1 christos if (bfd_is_com_section (sec))
5002 1.1 christos {
5003 1.1 christos *retval = SHN_IA_64_ANSI_COMMON;
5004 1.1 christos return TRUE;
5005 1.1 christos }
5006 1.1 christos return FALSE;
5007 1.1 christos }
5008 1.1 christos
5009 1.1 christos static void
5010 1.1 christos elfNN_hpux_backend_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED,
5011 1.1 christos asymbol *asym)
5012 1.1 christos {
5013 1.1 christos elf_symbol_type *elfsym = (elf_symbol_type *) asym;
5014 1.1 christos
5015 1.1 christos switch (elfsym->internal_elf_sym.st_shndx)
5016 1.1 christos {
5017 1.1 christos case SHN_IA_64_ANSI_COMMON:
5018 1.1.1.2 christos asym->section = bfd_com_section_ptr;
5019 1.1 christos asym->value = elfsym->internal_elf_sym.st_size;
5020 1.1.1.2 christos asym->flags &= ~BSF_GLOBAL;
5021 1.1 christos break;
5022 1.1 christos }
5023 1.1 christos }
5024 1.1 christos
5025 1.1 christos #define TARGET_LITTLE_SYM ia64_elfNN_le_vec
5027 1.1 christos #define TARGET_LITTLE_NAME "elfNN-ia64-little"
5028 1.1 christos #define TARGET_BIG_SYM ia64_elfNN_be_vec
5029 1.1 christos #define TARGET_BIG_NAME "elfNN-ia64-big"
5030 1.1 christos #define ELF_ARCH bfd_arch_ia64
5031 1.1 christos #define ELF_TARGET_ID IA64_ELF_DATA
5032 1.1 christos #define ELF_MACHINE_CODE EM_IA_64
5033 1.1 christos #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
5034 1.1 christos #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
5035 1.1 christos #define ELF_MAXPAGESIZE 0x10000 /* 64KB */
5036 1.1 christos #define ELF_COMMONPAGESIZE 0x4000 /* 16KB */
5037 1.1 christos
5038 1.1 christos #define elf_backend_section_from_shdr \
5039 1.1 christos elfNN_ia64_section_from_shdr
5040 1.1 christos #define elf_backend_section_flags \
5041 1.1 christos elfNN_ia64_section_flags
5042 1.1 christos #define elf_backend_fake_sections \
5043 1.1 christos elfNN_ia64_fake_sections
5044 1.1 christos #define elf_backend_final_write_processing \
5045 1.1 christos elfNN_ia64_final_write_processing
5046 1.1 christos #define elf_backend_add_symbol_hook \
5047 1.1 christos elfNN_ia64_add_symbol_hook
5048 1.1 christos #define elf_backend_additional_program_headers \
5049 1.1 christos elfNN_ia64_additional_program_headers
5050 1.1 christos #define elf_backend_modify_segment_map \
5051 1.1 christos elfNN_ia64_modify_segment_map
5052 1.1 christos #define elf_backend_modify_program_headers \
5053 1.1 christos elfNN_ia64_modify_program_headers
5054 1.1 christos #define elf_info_to_howto \
5055 1.1 christos elfNN_ia64_info_to_howto
5056 1.1 christos
5057 1.1 christos #define bfd_elfNN_bfd_reloc_type_lookup \
5058 1.1 christos ia64_elf_reloc_type_lookup
5059 1.1 christos #define bfd_elfNN_bfd_reloc_name_lookup \
5060 1.1 christos ia64_elf_reloc_name_lookup
5061 1.1 christos #define bfd_elfNN_bfd_is_local_label_name \
5062 1.1 christos elfNN_ia64_is_local_label_name
5063 1.1 christos #define bfd_elfNN_bfd_relax_section \
5064 1.1 christos elfNN_ia64_relax_section
5065 1.1 christos
5066 1.1 christos #define elf_backend_object_p \
5067 1.1 christos elfNN_ia64_object_p
5068 1.1 christos
5069 1.1 christos /* Stuff for the BFD linker: */
5070 1.1 christos #define bfd_elfNN_bfd_link_hash_table_create \
5071 1.1 christos elfNN_ia64_hash_table_create
5072 1.1 christos #define elf_backend_create_dynamic_sections \
5073 1.1.1.5 christos elfNN_ia64_create_dynamic_sections
5074 1.1 christos #define elf_backend_check_relocs \
5075 1.1 christos elfNN_ia64_check_relocs
5076 1.1 christos #define elf_backend_adjust_dynamic_symbol \
5077 1.1 christos elfNN_ia64_adjust_dynamic_symbol
5078 1.1 christos #define elf_backend_size_dynamic_sections \
5079 1.1 christos elfNN_ia64_size_dynamic_sections
5080 1.1 christos #define elf_backend_omit_section_dynsym \
5081 1.1 christos _bfd_elf_omit_section_dynsym_all
5082 1.1 christos #define elf_backend_relocate_section \
5083 1.1 christos elfNN_ia64_relocate_section
5084 1.1 christos #define elf_backend_finish_dynamic_symbol \
5085 1.1 christos elfNN_ia64_finish_dynamic_symbol
5086 1.1 christos #define elf_backend_finish_dynamic_sections \
5087 1.1 christos elfNN_ia64_finish_dynamic_sections
5088 1.1 christos #define bfd_elfNN_bfd_final_link \
5089 1.1 christos elfNN_ia64_final_link
5090 1.1 christos
5091 1.1.1.5 christos #define bfd_elfNN_bfd_merge_private_bfd_data \
5092 1.1 christos elfNN_ia64_merge_private_bfd_data
5093 1.1 christos #define bfd_elfNN_bfd_set_private_flags \
5094 1.1 christos elfNN_ia64_set_private_flags
5095 1.1 christos #define bfd_elfNN_bfd_print_private_bfd_data \
5096 1.1 christos elfNN_ia64_print_private_bfd_data
5097 1.1 christos
5098 1.1 christos #define elf_backend_plt_readonly 1
5099 1.1 christos #define elf_backend_can_gc_sections 1
5100 1.1 christos #define elf_backend_want_plt_sym 0
5101 1.1 christos #define elf_backend_plt_alignment 5
5102 1.1 christos #define elf_backend_got_header_size 0
5103 1.1 christos #define elf_backend_want_got_plt 1
5104 1.1 christos #define elf_backend_may_use_rel_p 1
5105 1.1.1.4 christos #define elf_backend_may_use_rela_p 1
5106 1.1 christos #define elf_backend_default_use_rela_p 1
5107 1.1 christos #define elf_backend_want_dynbss 0
5108 1.1 christos #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
5109 1.1 christos #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
5110 1.1 christos #define elf_backend_fixup_symbol _bfd_elf_link_hash_fixup_symbol
5111 1.1 christos #define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
5112 1.1 christos #define elf_backend_rela_normal 1
5113 1.1 christos #define elf_backend_dtrel_excludes_plt 1
5114 1.1 christos #define elf_backend_special_sections elfNN_ia64_special_sections
5115 1.1 christos #define elf_backend_default_execstack 0
5116 1.1 christos
5117 1.1 christos /* FIXME: PR 290: The Intel C compiler generates SHT_IA_64_UNWIND with
5118 1.1 christos SHF_LINK_ORDER. But it doesn't set the sh_link or sh_info fields.
5119 1.1 christos We don't want to flood users with so many error messages. We turn
5120 1.1 christos off the warning for now. It will be turned on later when the Intel
5121 1.1 christos compiler is fixed. */
5122 1.1 christos #define elf_backend_link_order_error_handler NULL
5123 1.1.1.4 christos
5124 1.1.1.4 christos #include "elfNN-target.h"
5125 1.1.1.4 christos
5126 1.1 christos /* HPUX-specific vectors. */
5127 1.1 christos
5128 1.1 christos #undef TARGET_LITTLE_SYM
5129 1.1 christos #undef TARGET_LITTLE_NAME
5130 1.1 christos #undef TARGET_BIG_SYM
5131 1.1 christos #define TARGET_BIG_SYM ia64_elfNN_hpux_be_vec
5132 1.1 christos #undef TARGET_BIG_NAME
5133 1.1 christos #define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
5134 1.1 christos
5135 1.1 christos /* These are HP-UX specific functions. */
5136 1.1 christos
5137 1.1 christos #undef elf_backend_post_process_headers
5138 1.1 christos #define elf_backend_post_process_headers elfNN_hpux_post_process_headers
5139 1.1 christos
5140 1.1 christos #undef elf_backend_section_from_bfd_section
5141 1.1 christos #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
5142 1.1 christos
5143 1.1 christos #undef elf_backend_symbol_processing
5144 1.1 christos #define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
5145 1.1 christos
5146 1.1 christos #undef elf_backend_want_p_paddr_set_to_zero
5147 1.1 christos #define elf_backend_want_p_paddr_set_to_zero 1
5148 1.1 christos
5149 #undef ELF_COMMONPAGESIZE
5150 #undef ELF_OSABI
5151 #define ELF_OSABI ELFOSABI_HPUX
5152
5153 #undef elfNN_bed
5154 #define elfNN_bed elfNN_ia64_hpux_bed
5155
5156 #include "elfNN-target.h"
5157