elfnn-ia64.c revision 1.1.1.6 1 1.1 christos /* IA-64 support for 64-bit ELF
2 1.1.1.6 christos Copyright (C) 1998-2020 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 "elfxx-ia64.h"
31 1.1 christos
32 1.1 christos #define ARCH_SIZE NN
33 1.1 christos
34 1.1 christos #if ARCH_SIZE == 64
35 1.1 christos #define LOG_SECTION_ALIGN 3
36 1.1 christos #endif
37 1.1 christos
38 1.1 christos #if ARCH_SIZE == 32
39 1.1 christos #define LOG_SECTION_ALIGN 2
40 1.1 christos #endif
41 1.1 christos
42 1.1.1.6 christos #define is_ia64_elf(bfd) \
43 1.1.1.6 christos (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
44 1.1.1.6 christos && elf_object_id (bfd) == IA64_ELF_DATA)
45 1.1.1.6 christos
46 1.1 christos typedef struct bfd_hash_entry *(*new_hash_entry_func)
47 1.1 christos (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
48 1.1 christos
49 1.1 christos /* In dynamically (linker-) created sections, we generally need to keep track
50 1.1 christos of the place a symbol or expression got allocated to. This is done via hash
51 1.1 christos tables that store entries of the following type. */
52 1.1 christos
53 1.1 christos struct elfNN_ia64_dyn_sym_info
54 1.1 christos {
55 1.1 christos /* The addend for which this entry is relevant. */
56 1.1 christos bfd_vma addend;
57 1.1 christos
58 1.1 christos bfd_vma got_offset;
59 1.1 christos bfd_vma fptr_offset;
60 1.1 christos bfd_vma pltoff_offset;
61 1.1 christos bfd_vma plt_offset;
62 1.1 christos bfd_vma plt2_offset;
63 1.1 christos bfd_vma tprel_offset;
64 1.1 christos bfd_vma dtpmod_offset;
65 1.1 christos bfd_vma dtprel_offset;
66 1.1 christos
67 1.1 christos /* The symbol table entry, if any, that this was derived from. */
68 1.1 christos struct elf_link_hash_entry *h;
69 1.1 christos
70 1.1 christos /* Used to count non-got, non-plt relocations for delayed sizing
71 1.1 christos of relocation sections. */
72 1.1 christos struct elfNN_ia64_dyn_reloc_entry
73 1.1 christos {
74 1.1 christos struct elfNN_ia64_dyn_reloc_entry *next;
75 1.1 christos asection *srel;
76 1.1 christos int type;
77 1.1 christos int count;
78 1.1 christos
79 1.1 christos /* Is this reloc against readonly section? */
80 1.1 christos bfd_boolean reltext;
81 1.1 christos } *reloc_entries;
82 1.1 christos
83 1.1 christos /* TRUE when the section contents have been updated. */
84 1.1 christos unsigned got_done : 1;
85 1.1 christos unsigned fptr_done : 1;
86 1.1 christos unsigned pltoff_done : 1;
87 1.1 christos unsigned tprel_done : 1;
88 1.1 christos unsigned dtpmod_done : 1;
89 1.1 christos unsigned dtprel_done : 1;
90 1.1 christos
91 1.1 christos /* TRUE for the different kinds of linker data we want created. */
92 1.1 christos unsigned want_got : 1;
93 1.1 christos unsigned want_gotx : 1;
94 1.1 christos unsigned want_fptr : 1;
95 1.1 christos unsigned want_ltoff_fptr : 1;
96 1.1 christos unsigned want_plt : 1;
97 1.1 christos unsigned want_plt2 : 1;
98 1.1 christos unsigned want_pltoff : 1;
99 1.1 christos unsigned want_tprel : 1;
100 1.1 christos unsigned want_dtpmod : 1;
101 1.1 christos unsigned want_dtprel : 1;
102 1.1 christos };
103 1.1 christos
104 1.1 christos struct elfNN_ia64_local_hash_entry
105 1.1 christos {
106 1.1 christos int id;
107 1.1 christos unsigned int r_sym;
108 1.1 christos /* The number of elements in elfNN_ia64_dyn_sym_info array. */
109 1.1 christos unsigned int count;
110 1.1 christos /* The number of sorted elements in elfNN_ia64_dyn_sym_info array. */
111 1.1 christos unsigned int sorted_count;
112 1.1 christos /* The size of elfNN_ia64_dyn_sym_info array. */
113 1.1 christos unsigned int size;
114 1.1 christos /* The array of elfNN_ia64_dyn_sym_info. */
115 1.1 christos struct elfNN_ia64_dyn_sym_info *info;
116 1.1 christos
117 1.1 christos /* TRUE if this hash entry's addends was translated for
118 1.1 christos SHF_MERGE optimization. */
119 1.1 christos unsigned sec_merge_done : 1;
120 1.1 christos };
121 1.1 christos
122 1.1 christos struct elfNN_ia64_link_hash_entry
123 1.1 christos {
124 1.1 christos struct elf_link_hash_entry root;
125 1.1 christos /* The number of elements in elfNN_ia64_dyn_sym_info array. */
126 1.1 christos unsigned int count;
127 1.1 christos /* The number of sorted elements in elfNN_ia64_dyn_sym_info array. */
128 1.1 christos unsigned int sorted_count;
129 1.1 christos /* The size of elfNN_ia64_dyn_sym_info array. */
130 1.1 christos unsigned int size;
131 1.1 christos /* The array of elfNN_ia64_dyn_sym_info. */
132 1.1 christos struct elfNN_ia64_dyn_sym_info *info;
133 1.1 christos };
134 1.1 christos
135 1.1 christos struct elfNN_ia64_link_hash_table
136 1.1 christos {
137 1.1 christos /* The main hash table. */
138 1.1 christos struct elf_link_hash_table root;
139 1.1 christos
140 1.1 christos asection *fptr_sec; /* Function descriptor table (or NULL). */
141 1.1 christos asection *rel_fptr_sec; /* Dynamic relocation section for same. */
142 1.1 christos asection *pltoff_sec; /* Private descriptors for plt (or NULL). */
143 1.1 christos asection *rel_pltoff_sec; /* Dynamic relocation section for same. */
144 1.1 christos
145 1.1 christos bfd_size_type minplt_entries; /* Number of minplt entries. */
146 1.1 christos unsigned reltext : 1; /* Are there relocs against readonly sections? */
147 1.1 christos unsigned self_dtpmod_done : 1;/* Has self DTPMOD entry been finished? */
148 1.1 christos bfd_vma self_dtpmod_offset; /* .got offset to self DTPMOD entry. */
149 1.1 christos /* There are maybe R_IA64_GPREL22 relocations, including those
150 1.1 christos optimized from R_IA64_LTOFF22X, against non-SHF_IA_64_SHORT
151 1.1 christos sections. We need to record those sections so that we can choose
152 1.1 christos a proper GP to cover all R_IA64_GPREL22 relocations. */
153 1.1 christos asection *max_short_sec; /* Maximum short output section. */
154 1.1 christos bfd_vma max_short_offset; /* Maximum short offset. */
155 1.1 christos asection *min_short_sec; /* Minimum short output section. */
156 1.1 christos bfd_vma min_short_offset; /* Minimum short offset. */
157 1.1 christos
158 1.1 christos htab_t loc_hash_table;
159 1.1 christos void *loc_hash_memory;
160 1.1 christos };
161 1.1 christos
162 1.1 christos struct elfNN_ia64_allocate_data
163 1.1 christos {
164 1.1 christos struct bfd_link_info *info;
165 1.1 christos bfd_size_type ofs;
166 1.1 christos bfd_boolean only_got;
167 1.1 christos };
168 1.1 christos
169 1.1 christos #define elfNN_ia64_hash_table(p) \
170 1.1 christos (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
171 1.1 christos == IA64_ELF_DATA ? ((struct elfNN_ia64_link_hash_table *) ((p)->hash)) : NULL)
172 1.1 christos
173 1.1 christos static struct elfNN_ia64_dyn_sym_info * get_dyn_sym_info
174 1.1 christos (struct elfNN_ia64_link_hash_table *ia64_info,
175 1.1 christos struct elf_link_hash_entry *h,
176 1.1 christos bfd *abfd, const Elf_Internal_Rela *rel, bfd_boolean create);
177 1.1 christos static bfd_boolean elfNN_ia64_dynamic_symbol_p
178 1.1 christos (struct elf_link_hash_entry *h, struct bfd_link_info *info, int);
179 1.1 christos static bfd_boolean elfNN_ia64_choose_gp
180 1.1 christos (bfd *abfd, struct bfd_link_info *info, bfd_boolean final);
181 1.1 christos static void elfNN_ia64_dyn_sym_traverse
182 1.1 christos (struct elfNN_ia64_link_hash_table *ia64_info,
183 1.1 christos bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, void *),
184 1.1 christos void * info);
185 1.1 christos static bfd_boolean allocate_global_data_got
186 1.1 christos (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
187 1.1 christos static bfd_boolean allocate_global_fptr_got
188 1.1 christos (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
189 1.1 christos static bfd_boolean allocate_local_got
190 1.1 christos (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
191 1.1 christos static bfd_boolean elfNN_ia64_hpux_vec
192 1.1 christos (const bfd_target *vec);
193 1.1 christos static bfd_boolean allocate_dynrel_entries
194 1.1 christos (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
195 1.1 christos static asection *get_pltoff
196 1.1 christos (bfd *abfd, struct bfd_link_info *info,
197 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info);
198 1.1 christos
199 1.1 christos /* ia64-specific relocation. */
201 1.1 christos
202 1.1 christos /* Given a ELF reloc, return the matching HOWTO structure. */
203 1.1.1.5 christos
204 1.1 christos static bfd_boolean
205 1.1 christos elfNN_ia64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
206 1.1 christos arelent *bfd_reloc,
207 1.1 christos Elf_Internal_Rela *elf_reloc)
208 1.1.1.5 christos {
209 1.1.1.5 christos unsigned int r_type = ELF32_R_TYPE (elf_reloc->r_info);
210 1.1.1.5 christos
211 1.1.1.5 christos bfd_reloc->howto = ia64_elf_lookup_howto (r_type);
212 1.1.1.5 christos if (bfd_reloc->howto == NULL)
213 1.1.1.5 christos {
214 1.1.1.5 christos /* xgettext:c-format */
215 1.1.1.5 christos _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
216 1.1.1.5 christos abfd, r_type);
217 1.1.1.5 christos bfd_set_error (bfd_error_bad_value);
218 1.1.1.5 christos return FALSE;
219 1.1.1.5 christos }
220 1.1.1.5 christos
221 1.1 christos return TRUE;
222 1.1 christos }
223 1.1 christos
224 1.1 christos #define PLT_HEADER_SIZE (3 * 16)
226 1.1 christos #define PLT_MIN_ENTRY_SIZE (1 * 16)
227 1.1 christos #define PLT_FULL_ENTRY_SIZE (2 * 16)
228 1.1 christos #define PLT_RESERVED_WORDS 3
229 1.1 christos
230 1.1.1.4 christos static const bfd_byte plt_header[PLT_HEADER_SIZE] =
231 1.1.1.4 christos {
232 1.1.1.4 christos 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
233 1.1.1.4 christos 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
234 1.1.1.4 christos 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
235 1.1.1.4 christos 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
236 1.1.1.4 christos 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
237 1.1.1.4 christos 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
238 1.1.1.4 christos 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
239 1.1 christos 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
240 1.1 christos 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
241 1.1 christos };
242 1.1 christos
243 1.1.1.4 christos static const bfd_byte plt_min_entry[PLT_MIN_ENTRY_SIZE] =
244 1.1.1.4 christos {
245 1.1.1.4 christos 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
246 1.1 christos 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
247 1.1 christos 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
248 1.1 christos };
249 1.1 christos
250 1.1.1.4 christos static const bfd_byte plt_full_entry[PLT_FULL_ENTRY_SIZE] =
251 1.1.1.4 christos {
252 1.1.1.4 christos 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
253 1.1.1.4 christos 0x00, 0x41, 0x3c, 0x70, 0x29, 0xc0, /* ld8.acq r16=[r15],8*/
254 1.1.1.4 christos 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
255 1.1.1.4 christos 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
256 1.1 christos 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
257 1.1 christos 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
258 1.1 christos };
259 1.1 christos
260 1.1 christos #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
261 1.1 christos
262 1.1.1.4 christos static const bfd_byte oor_brl[16] =
263 1.1.1.4 christos {
264 1.1 christos 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
265 1.1 christos 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
266 1.1 christos 0x00, 0x00, 0x00, 0xc0
267 1.1 christos };
268 1.1 christos
269 1.1.1.4 christos static const bfd_byte oor_ip[48] =
270 1.1.1.4 christos {
271 1.1 christos 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
272 1.1.1.4 christos 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */
273 1.1.1.4 christos 0x01, 0x00, 0x00, 0x60,
274 1.1.1.4 christos 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */
275 1.1.1.4 christos 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */
276 1.1.1.4 christos 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */
277 1.1.1.4 christos 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */
278 1.1 christos 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
279 1.1 christos 0x60, 0x00, 0x80, 0x00 /* br b6;; */
280 1.1 christos };
281 1.1 christos
282 1.1 christos static size_t oor_branch_size = sizeof (oor_brl);
283 1.1 christos
284 1.1 christos void
285 1.1 christos bfd_elfNN_ia64_after_parse (int itanium)
286 1.1 christos {
287 1.1 christos oor_branch_size = itanium ? sizeof (oor_ip) : sizeof (oor_brl);
288 1.1 christos }
289 1.1 christos
290 1.1 christos
292 1.1 christos /* Rename some of the generic section flags to better document how they
293 1.1 christos are used here. */
294 1.1 christos #define skip_relax_pass_0 sec_flg0
295 1.1 christos #define skip_relax_pass_1 sec_flg1
296 1.1 christos
297 1.1 christos /* These functions do relaxation for IA-64 ELF. */
298 1.1 christos
299 1.1 christos static void
300 1.1 christos elfNN_ia64_update_short_info (asection *sec, bfd_vma offset,
301 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info)
302 1.1 christos {
303 1.1 christos /* Skip ABS and SHF_IA_64_SHORT sections. */
304 1.1 christos if (sec == bfd_abs_section_ptr
305 1.1 christos || (sec->flags & SEC_SMALL_DATA) != 0)
306 1.1 christos return;
307 1.1 christos
308 1.1 christos if (!ia64_info->min_short_sec)
309 1.1 christos {
310 1.1 christos ia64_info->max_short_sec = sec;
311 1.1 christos ia64_info->max_short_offset = offset;
312 1.1 christos ia64_info->min_short_sec = sec;
313 1.1 christos ia64_info->min_short_offset = offset;
314 1.1 christos }
315 1.1 christos else if (sec == ia64_info->max_short_sec
316 1.1 christos && offset > ia64_info->max_short_offset)
317 1.1 christos ia64_info->max_short_offset = offset;
318 1.1 christos else if (sec == ia64_info->min_short_sec
319 1.1 christos && offset < ia64_info->min_short_offset)
320 1.1 christos ia64_info->min_short_offset = offset;
321 1.1 christos else if (sec->output_section->vma
322 1.1 christos > ia64_info->max_short_sec->vma)
323 1.1 christos {
324 1.1 christos ia64_info->max_short_sec = sec;
325 1.1 christos ia64_info->max_short_offset = offset;
326 1.1 christos }
327 1.1 christos else if (sec->output_section->vma
328 1.1 christos < ia64_info->min_short_sec->vma)
329 1.1 christos {
330 1.1 christos ia64_info->min_short_sec = sec;
331 1.1 christos ia64_info->min_short_offset = offset;
332 1.1 christos }
333 1.1 christos }
334 1.1 christos
335 1.1 christos static bfd_boolean
336 1.1 christos elfNN_ia64_relax_section (bfd *abfd, asection *sec,
337 1.1 christos struct bfd_link_info *link_info,
338 1.1 christos bfd_boolean *again)
339 1.1 christos {
340 1.1 christos struct one_fixup
341 1.1 christos {
342 1.1 christos struct one_fixup *next;
343 1.1 christos asection *tsec;
344 1.1 christos bfd_vma toff;
345 1.1 christos bfd_vma trampoff;
346 1.1 christos };
347 1.1 christos
348 1.1 christos Elf_Internal_Shdr *symtab_hdr;
349 1.1 christos Elf_Internal_Rela *internal_relocs;
350 1.1 christos Elf_Internal_Rela *irel, *irelend;
351 1.1 christos bfd_byte *contents;
352 1.1 christos Elf_Internal_Sym *isymbuf = NULL;
353 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
354 1.1 christos struct one_fixup *fixups = NULL;
355 1.1 christos bfd_boolean changed_contents = FALSE;
356 1.1 christos bfd_boolean changed_relocs = FALSE;
357 1.1 christos bfd_boolean changed_got = FALSE;
358 1.1 christos bfd_boolean skip_relax_pass_0 = TRUE;
359 1.1 christos bfd_boolean skip_relax_pass_1 = TRUE;
360 1.1 christos bfd_vma gp = 0;
361 1.1 christos
362 1.1 christos /* Assume we're not going to change any sizes, and we'll only need
363 1.1.1.2 christos one pass. */
364 1.1 christos *again = FALSE;
365 1.1 christos
366 1.1 christos if (bfd_link_relocatable (link_info))
367 1.1 christos (*link_info->callbacks->einfo)
368 1.1 christos (_("%P%F: --relax and -r may not be used together\n"));
369 1.1 christos
370 1.1 christos /* Don't even try to relax for non-ELF outputs. */
371 1.1 christos if (!is_elf_hash_table (link_info->hash))
372 1.1 christos return FALSE;
373 1.1 christos
374 1.1 christos /* Nothing to do if there are no relocations or there is no need for
375 1.1 christos the current pass. */
376 1.1 christos if ((sec->flags & SEC_RELOC) == 0
377 1.1 christos || sec->reloc_count == 0
378 1.1 christos || (link_info->relax_pass == 0 && sec->skip_relax_pass_0)
379 1.1 christos || (link_info->relax_pass == 1 && sec->skip_relax_pass_1))
380 1.1 christos return TRUE;
381 1.1 christos
382 1.1 christos ia64_info = elfNN_ia64_hash_table (link_info);
383 1.1 christos if (ia64_info == NULL)
384 1.1 christos return FALSE;
385 1.1 christos
386 1.1 christos symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
387 1.1 christos
388 1.1 christos /* Load the relocations for this section. */
389 1.1 christos internal_relocs = (_bfd_elf_link_read_relocs
390 1.1 christos (abfd, sec, NULL, (Elf_Internal_Rela *) NULL,
391 1.1 christos link_info->keep_memory));
392 1.1 christos if (internal_relocs == NULL)
393 1.1 christos return FALSE;
394 1.1 christos
395 1.1 christos irelend = internal_relocs + sec->reloc_count;
396 1.1 christos
397 1.1 christos /* Get the section contents. */
398 1.1 christos if (elf_section_data (sec)->this_hdr.contents != NULL)
399 1.1 christos contents = elf_section_data (sec)->this_hdr.contents;
400 1.1 christos else
401 1.1 christos {
402 1.1 christos if (!bfd_malloc_and_get_section (abfd, sec, &contents))
403 1.1 christos goto error_return;
404 1.1 christos }
405 1.1 christos
406 1.1 christos for (irel = internal_relocs; irel < irelend; irel++)
407 1.1 christos {
408 1.1 christos unsigned long r_type = ELFNN_R_TYPE (irel->r_info);
409 1.1 christos bfd_vma symaddr, reladdr, trampoff, toff, roff;
410 1.1 christos asection *tsec;
411 1.1 christos struct one_fixup *f;
412 1.1 christos bfd_size_type amt;
413 1.1 christos bfd_boolean is_branch;
414 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
415 1.1 christos char symtype;
416 1.1 christos
417 1.1 christos switch (r_type)
418 1.1 christos {
419 1.1 christos case R_IA64_PCREL21B:
420 1.1 christos case R_IA64_PCREL21BI:
421 1.1 christos case R_IA64_PCREL21M:
422 1.1 christos case R_IA64_PCREL21F:
423 1.1 christos /* In pass 1, all br relaxations are done. We can skip it. */
424 1.1 christos if (link_info->relax_pass == 1)
425 1.1 christos continue;
426 1.1 christos skip_relax_pass_0 = FALSE;
427 1.1 christos is_branch = TRUE;
428 1.1 christos break;
429 1.1 christos
430 1.1 christos case R_IA64_PCREL60B:
431 1.1 christos /* We can't optimize brl to br in pass 0 since br relaxations
432 1.1 christos will increase the code size. Defer it to pass 1. */
433 1.1 christos if (link_info->relax_pass == 0)
434 1.1 christos {
435 1.1 christos skip_relax_pass_1 = FALSE;
436 1.1 christos continue;
437 1.1 christos }
438 1.1 christos is_branch = TRUE;
439 1.1 christos break;
440 1.1 christos
441 1.1 christos case R_IA64_GPREL22:
442 1.1 christos /* Update max_short_sec/min_short_sec. */
443 1.1 christos
444 1.1 christos case R_IA64_LTOFF22X:
445 1.1 christos case R_IA64_LDXMOV:
446 1.1 christos /* We can't relax ldx/mov in pass 0 since br relaxations will
447 1.1 christos increase the code size. Defer it to pass 1. */
448 1.1 christos if (link_info->relax_pass == 0)
449 1.1 christos {
450 1.1 christos skip_relax_pass_1 = FALSE;
451 1.1 christos continue;
452 1.1 christos }
453 1.1 christos is_branch = FALSE;
454 1.1 christos break;
455 1.1 christos
456 1.1 christos default:
457 1.1 christos continue;
458 1.1 christos }
459 1.1 christos
460 1.1 christos /* Get the value of the symbol referred to by the reloc. */
461 1.1 christos if (ELFNN_R_SYM (irel->r_info) < symtab_hdr->sh_info)
462 1.1 christos {
463 1.1 christos /* A local symbol. */
464 1.1 christos Elf_Internal_Sym *isym;
465 1.1 christos
466 1.1 christos /* Read this BFD's local symbols. */
467 1.1 christos if (isymbuf == NULL)
468 1.1 christos {
469 1.1 christos isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
470 1.1 christos if (isymbuf == NULL)
471 1.1 christos isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
472 1.1 christos symtab_hdr->sh_info, 0,
473 1.1 christos NULL, NULL, NULL);
474 1.1 christos if (isymbuf == 0)
475 1.1 christos goto error_return;
476 1.1 christos }
477 1.1 christos
478 1.1 christos isym = isymbuf + ELFNN_R_SYM (irel->r_info);
479 1.1 christos if (isym->st_shndx == SHN_UNDEF)
480 1.1 christos continue; /* We can't do anything with undefined symbols. */
481 1.1 christos else if (isym->st_shndx == SHN_ABS)
482 1.1 christos tsec = bfd_abs_section_ptr;
483 1.1 christos else if (isym->st_shndx == SHN_COMMON)
484 1.1 christos tsec = bfd_com_section_ptr;
485 1.1 christos else if (isym->st_shndx == SHN_IA_64_ANSI_COMMON)
486 1.1 christos tsec = bfd_com_section_ptr;
487 1.1 christos else
488 1.1 christos tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
489 1.1 christos
490 1.1 christos toff = isym->st_value;
491 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, NULL, abfd, irel, FALSE);
492 1.1 christos symtype = ELF_ST_TYPE (isym->st_info);
493 1.1 christos }
494 1.1 christos else
495 1.1 christos {
496 1.1 christos unsigned long indx;
497 1.1 christos struct elf_link_hash_entry *h;
498 1.1 christos
499 1.1 christos indx = ELFNN_R_SYM (irel->r_info) - symtab_hdr->sh_info;
500 1.1 christos h = elf_sym_hashes (abfd)[indx];
501 1.1 christos BFD_ASSERT (h != NULL);
502 1.1 christos
503 1.1 christos while (h->root.type == bfd_link_hash_indirect
504 1.1 christos || h->root.type == bfd_link_hash_warning)
505 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
506 1.1 christos
507 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, abfd, irel, FALSE);
508 1.1 christos
509 1.1 christos /* For branches to dynamic symbols, we're interested instead
510 1.1 christos in a branch to the PLT entry. */
511 1.1 christos if (is_branch && dyn_i && dyn_i->want_plt2)
512 1.1 christos {
513 1.1 christos /* Internal branches shouldn't be sent to the PLT.
514 1.1 christos Leave this for now and we'll give an error later. */
515 1.1 christos if (r_type != R_IA64_PCREL21B)
516 1.1 christos continue;
517 1.1 christos
518 1.1 christos tsec = ia64_info->root.splt;
519 1.1 christos toff = dyn_i->plt2_offset;
520 1.1 christos BFD_ASSERT (irel->r_addend == 0);
521 1.1 christos }
522 1.1 christos
523 1.1 christos /* Can't do anything else with dynamic symbols. */
524 1.1 christos else if (elfNN_ia64_dynamic_symbol_p (h, link_info, r_type))
525 1.1 christos continue;
526 1.1 christos
527 1.1 christos else
528 1.1 christos {
529 1.1 christos /* We can't do anything with undefined symbols. */
530 1.1 christos if (h->root.type == bfd_link_hash_undefined
531 1.1 christos || h->root.type == bfd_link_hash_undefweak)
532 1.1 christos continue;
533 1.1 christos
534 1.1 christos tsec = h->root.u.def.section;
535 1.1 christos toff = h->root.u.def.value;
536 1.1 christos }
537 1.1 christos
538 1.1 christos symtype = h->type;
539 1.1 christos }
540 1.1 christos
541 1.1 christos if (tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
542 1.1 christos {
543 1.1 christos /* At this stage in linking, no SEC_MERGE symbol has been
544 1.1 christos adjusted, so all references to such symbols need to be
545 1.1 christos passed through _bfd_merged_section_offset. (Later, in
546 1.1 christos relocate_section, all SEC_MERGE symbols *except* for
547 1.1 christos section symbols have been adjusted.)
548 1.1 christos
549 1.1 christos gas may reduce relocations against symbols in SEC_MERGE
550 1.1 christos sections to a relocation against the section symbol when
551 1.1 christos the original addend was zero. When the reloc is against
552 1.1 christos a section symbol we should include the addend in the
553 1.1 christos offset passed to _bfd_merged_section_offset, since the
554 1.1 christos location of interest is the original symbol. On the
555 1.1 christos other hand, an access to "sym+addend" where "sym" is not
556 1.1 christos a section symbol should not include the addend; Such an
557 1.1 christos access is presumed to be an offset from "sym"; The
558 1.1 christos location of interest is just "sym". */
559 1.1 christos if (symtype == STT_SECTION)
560 1.1 christos toff += irel->r_addend;
561 1.1 christos
562 1.1 christos toff = _bfd_merged_section_offset (abfd, &tsec,
563 1.1 christos elf_section_data (tsec)->sec_info,
564 1.1 christos toff);
565 1.1 christos
566 1.1 christos if (symtype != STT_SECTION)
567 1.1 christos toff += irel->r_addend;
568 1.1 christos }
569 1.1 christos else
570 1.1 christos toff += irel->r_addend;
571 1.1 christos
572 1.1 christos symaddr = tsec->output_section->vma + tsec->output_offset + toff;
573 1.1 christos
574 1.1 christos roff = irel->r_offset;
575 1.1 christos
576 1.1 christos if (is_branch)
577 1.1 christos {
578 1.1 christos bfd_signed_vma offset;
579 1.1 christos
580 1.1 christos reladdr = (sec->output_section->vma
581 1.1 christos + sec->output_offset
582 1.1 christos + roff) & (bfd_vma) -4;
583 1.1 christos
584 1.1 christos /* The .plt section is aligned at 32byte and the .text section
585 1.1 christos is aligned at 64byte. The .text section is right after the
586 1.1.1.2 christos .plt section. After the first relaxation pass, linker may
587 1.1 christos increase the gap between the .plt and .text sections up
588 1.1 christos to 32byte. We assume linker will always insert 32byte
589 1.1 christos between the .plt and .text sections after the first
590 1.1 christos relaxation pass. */
591 1.1 christos if (tsec == ia64_info->root.splt)
592 1.1 christos offset = -0x1000000 + 32;
593 1.1 christos else
594 1.1 christos offset = -0x1000000;
595 1.1 christos
596 1.1 christos /* If the branch is in range, no need to do anything. */
597 1.1 christos if ((bfd_signed_vma) (symaddr - reladdr) >= offset
598 1.1 christos && (bfd_signed_vma) (symaddr - reladdr) <= 0x0FFFFF0)
599 1.1 christos {
600 1.1 christos /* If the 60-bit branch is in 21-bit range, optimize it. */
601 1.1 christos if (r_type == R_IA64_PCREL60B)
602 1.1 christos {
603 1.1 christos ia64_elf_relax_brl (contents, roff);
604 1.1 christos
605 1.1 christos irel->r_info
606 1.1 christos = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
607 1.1 christos R_IA64_PCREL21B);
608 1.1 christos
609 1.1 christos /* If the original relocation offset points to slot
610 1.1.1.5 christos 1, change it to slot 2. */
611 1.1.1.5 christos if ((irel->r_offset & 3) == 1)
612 1.1.1.5 christos irel->r_offset += 1;
613 1.1 christos
614 1.1 christos changed_contents = TRUE;
615 1.1 christos changed_relocs = TRUE;
616 1.1 christos }
617 1.1 christos
618 1.1 christos continue;
619 1.1 christos }
620 1.1 christos else if (r_type == R_IA64_PCREL60B)
621 1.1 christos continue;
622 1.1 christos else if (ia64_elf_relax_br (contents, roff))
623 1.1 christos {
624 1.1 christos irel->r_info
625 1.1 christos = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
626 1.1 christos R_IA64_PCREL60B);
627 1.1.1.5 christos
628 1.1.1.5 christos /* Make the relocation offset point to slot 1. */
629 1.1.1.5 christos irel->r_offset = (irel->r_offset & ~((bfd_vma) 0x3)) + 1;
630 1.1 christos
631 1.1 christos changed_contents = TRUE;
632 1.1 christos changed_relocs = TRUE;
633 1.1 christos continue;
634 1.1 christos }
635 1.1 christos
636 1.1 christos /* We can't put a trampoline in a .init/.fini section. Issue
637 1.1 christos an error. */
638 1.1.1.4 christos if (strcmp (sec->output_section->name, ".init") == 0
639 1.1.1.4 christos || strcmp (sec->output_section->name, ".fini") == 0)
640 1.1.1.5 christos {
641 1.1.1.5 christos _bfd_error_handler
642 1.1.1.5 christos /* xgettext:c-format */
643 1.1 christos (_("%pB: can't relax br at %#" PRIx64 " in section `%pA';"
644 1.1 christos " please use brl or indirect branch"),
645 1.1 christos sec->owner, (uint64_t) roff, sec);
646 1.1 christos bfd_set_error (bfd_error_bad_value);
647 1.1 christos goto error_return;
648 1.1 christos }
649 1.1 christos
650 1.1 christos /* If the branch and target are in the same section, you've
651 1.1 christos got one honking big section and we can't help you unless
652 1.1 christos you are branching backwards. You'll get an error message
653 1.1 christos later. */
654 1.1 christos if (tsec == sec && toff > roff)
655 1.1 christos continue;
656 1.1 christos
657 1.1 christos /* Look for an existing fixup to this address. */
658 1.1 christos for (f = fixups; f ; f = f->next)
659 1.1 christos if (f->tsec == tsec && f->toff == toff)
660 1.1 christos break;
661 1.1 christos
662 1.1 christos if (f == NULL)
663 1.1 christos {
664 1.1 christos /* Two alternatives: If it's a branch to a PLT entry, we can
665 1.1 christos make a copy of the FULL_PLT entry. Otherwise, we'll have
666 1.1 christos to use a `brl' insn to get where we're going. */
667 1.1 christos
668 1.1 christos size_t size;
669 1.1 christos
670 1.1 christos if (tsec == ia64_info->root.splt)
671 1.1 christos size = sizeof (plt_full_entry);
672 1.1 christos else
673 1.1 christos size = oor_branch_size;
674 1.1 christos
675 1.1 christos /* Resize the current section to make room for the new branch. */
676 1.1 christos trampoff = (sec->size + 15) & (bfd_vma) -16;
677 1.1 christos
678 1.1 christos /* If trampoline is out of range, there is nothing we
679 1.1 christos can do. */
680 1.1 christos offset = trampoff - (roff & (bfd_vma) -4);
681 1.1 christos if (offset < -0x1000000 || offset > 0x0FFFFF0)
682 1.1 christos continue;
683 1.1 christos
684 1.1 christos amt = trampoff + size;
685 1.1 christos contents = (bfd_byte *) bfd_realloc (contents, amt);
686 1.1 christos if (contents == NULL)
687 1.1 christos goto error_return;
688 1.1 christos sec->size = amt;
689 1.1 christos
690 1.1 christos if (tsec == ia64_info->root.splt)
691 1.1 christos {
692 1.1 christos memcpy (contents + trampoff, plt_full_entry, size);
693 1.1 christos
694 1.1 christos /* Hijack the old relocation for use as the PLTOFF reloc. */
695 1.1 christos irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
696 1.1 christos R_IA64_PLTOFF22);
697 1.1 christos irel->r_offset = trampoff;
698 1.1 christos }
699 1.1 christos else
700 1.1 christos {
701 1.1 christos if (size == sizeof (oor_ip))
702 1.1 christos {
703 1.1 christos memcpy (contents + trampoff, oor_ip, size);
704 1.1 christos irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
705 1.1 christos R_IA64_PCREL64I);
706 1.1 christos irel->r_addend -= 16;
707 1.1 christos irel->r_offset = trampoff + 2;
708 1.1 christos }
709 1.1 christos else
710 1.1 christos {
711 1.1 christos memcpy (contents + trampoff, oor_brl, size);
712 1.1 christos irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
713 1.1 christos R_IA64_PCREL60B);
714 1.1 christos irel->r_offset = trampoff + 2;
715 1.1 christos }
716 1.1 christos
717 1.1 christos }
718 1.1 christos
719 1.1 christos /* Record the fixup so we don't do it again this section. */
720 1.1 christos f = (struct one_fixup *)
721 1.1 christos bfd_malloc ((bfd_size_type) sizeof (*f));
722 1.1 christos f->next = fixups;
723 1.1 christos f->tsec = tsec;
724 1.1 christos f->toff = toff;
725 1.1 christos f->trampoff = trampoff;
726 1.1 christos fixups = f;
727 1.1 christos }
728 1.1 christos else
729 1.1 christos {
730 1.1 christos /* If trampoline is out of range, there is nothing we
731 1.1 christos can do. */
732 1.1 christos offset = f->trampoff - (roff & (bfd_vma) -4);
733 1.1 christos if (offset < -0x1000000 || offset > 0x0FFFFF0)
734 1.1 christos continue;
735 1.1 christos
736 1.1 christos /* Nop out the reloc, since we're finalizing things here. */
737 1.1 christos irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
738 1.1 christos }
739 1.1 christos
740 1.1 christos /* Fix up the existing branch to hit the trampoline. */
741 1.1 christos if (ia64_elf_install_value (contents + roff, offset, r_type)
742 1.1 christos != bfd_reloc_ok)
743 1.1 christos goto error_return;
744 1.1 christos
745 1.1 christos changed_contents = TRUE;
746 1.1 christos changed_relocs = TRUE;
747 1.1 christos }
748 1.1 christos else
749 1.1 christos {
750 1.1 christos /* Fetch the gp. */
751 1.1 christos if (gp == 0)
752 1.1 christos {
753 1.1 christos bfd *obfd = sec->output_section->owner;
754 1.1 christos gp = _bfd_get_gp_value (obfd);
755 1.1 christos if (gp == 0)
756 1.1 christos {
757 1.1 christos if (!elfNN_ia64_choose_gp (obfd, link_info, FALSE))
758 1.1 christos goto error_return;
759 1.1 christos gp = _bfd_get_gp_value (obfd);
760 1.1 christos }
761 1.1 christos }
762 1.1 christos
763 1.1 christos /* If the data is out of range, do nothing. */
764 1.1 christos if ((bfd_signed_vma) (symaddr - gp) >= 0x200000
765 1.1 christos ||(bfd_signed_vma) (symaddr - gp) < -0x200000)
766 1.1 christos continue;
767 1.1 christos
768 1.1 christos if (r_type == R_IA64_GPREL22)
769 1.1 christos elfNN_ia64_update_short_info (tsec->output_section,
770 1.1 christos tsec->output_offset + toff,
771 1.1 christos ia64_info);
772 1.1 christos else if (r_type == R_IA64_LTOFF22X)
773 1.1 christos {
774 1.1 christos irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
775 1.1 christos R_IA64_GPREL22);
776 1.1 christos changed_relocs = TRUE;
777 1.1 christos if (dyn_i->want_gotx)
778 1.1 christos {
779 1.1 christos dyn_i->want_gotx = 0;
780 1.1 christos changed_got |= !dyn_i->want_got;
781 1.1 christos }
782 1.1 christos
783 1.1 christos elfNN_ia64_update_short_info (tsec->output_section,
784 1.1 christos tsec->output_offset + toff,
785 1.1 christos ia64_info);
786 1.1 christos }
787 1.1 christos else
788 1.1 christos {
789 1.1 christos ia64_elf_relax_ldxmov (contents, roff);
790 1.1 christos irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
791 1.1 christos changed_contents = TRUE;
792 1.1 christos changed_relocs = TRUE;
793 1.1 christos }
794 1.1 christos }
795 1.1 christos }
796 1.1 christos
797 1.1 christos /* ??? If we created fixups, this may push the code segment large
798 1.1 christos enough that the data segment moves, which will change the GP.
799 1.1 christos Reset the GP so that we re-calculate next round. We need to
800 1.1 christos do this at the _beginning_ of the next round; now will not do. */
801 1.1 christos
802 1.1 christos /* Clean up and go home. */
803 1.1 christos while (fixups)
804 1.1 christos {
805 1.1 christos struct one_fixup *f = fixups;
806 1.1 christos fixups = fixups->next;
807 1.1 christos free (f);
808 1.1 christos }
809 1.1 christos
810 1.1 christos if (isymbuf != NULL
811 1.1 christos && symtab_hdr->contents != (unsigned char *) isymbuf)
812 1.1 christos {
813 1.1 christos if (! link_info->keep_memory)
814 1.1 christos free (isymbuf);
815 1.1 christos else
816 1.1 christos {
817 1.1 christos /* Cache the symbols for elf_link_input_bfd. */
818 1.1 christos symtab_hdr->contents = (unsigned char *) isymbuf;
819 1.1 christos }
820 1.1 christos }
821 1.1 christos
822 1.1 christos if (contents != NULL
823 1.1 christos && elf_section_data (sec)->this_hdr.contents != contents)
824 1.1 christos {
825 1.1 christos if (!changed_contents && !link_info->keep_memory)
826 1.1 christos free (contents);
827 1.1 christos else
828 1.1 christos {
829 1.1 christos /* Cache the section contents for elf_link_input_bfd. */
830 1.1 christos elf_section_data (sec)->this_hdr.contents = contents;
831 1.1 christos }
832 1.1 christos }
833 1.1 christos
834 1.1 christos if (elf_section_data (sec)->relocs != internal_relocs)
835 1.1 christos {
836 1.1 christos if (!changed_relocs)
837 1.1 christos free (internal_relocs);
838 1.1 christos else
839 1.1 christos elf_section_data (sec)->relocs = internal_relocs;
840 1.1 christos }
841 1.1 christos
842 1.1 christos if (changed_got)
843 1.1 christos {
844 1.1 christos struct elfNN_ia64_allocate_data data;
845 1.1 christos data.info = link_info;
846 1.1 christos data.ofs = 0;
847 1.1 christos ia64_info->self_dtpmod_offset = (bfd_vma) -1;
848 1.1 christos
849 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
850 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
851 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
852 1.1 christos ia64_info->root.sgot->size = data.ofs;
853 1.1 christos
854 1.1 christos if (ia64_info->root.dynamic_sections_created
855 1.1 christos && ia64_info->root.srelgot != NULL)
856 1.1.1.2 christos {
857 1.1 christos /* Resize .rela.got. */
858 1.1 christos ia64_info->root.srelgot->size = 0;
859 1.1 christos if (bfd_link_pic (link_info)
860 1.1 christos && ia64_info->self_dtpmod_offset != (bfd_vma) -1)
861 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
862 1.1 christos data.only_got = TRUE;
863 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries,
864 1.1 christos &data);
865 1.1 christos }
866 1.1 christos }
867 1.1 christos
868 1.1 christos if (link_info->relax_pass == 0)
869 1.1 christos {
870 1.1 christos /* Pass 0 is only needed to relax br. */
871 1.1 christos sec->skip_relax_pass_0 = skip_relax_pass_0;
872 1.1 christos sec->skip_relax_pass_1 = skip_relax_pass_1;
873 1.1 christos }
874 1.1 christos
875 1.1 christos *again = changed_contents || changed_relocs;
876 1.1 christos return TRUE;
877 1.1 christos
878 1.1 christos error_return:
879 1.1 christos if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
880 1.1 christos free (isymbuf);
881 1.1 christos if (contents != NULL
882 1.1 christos && elf_section_data (sec)->this_hdr.contents != contents)
883 1.1 christos free (contents);
884 1.1 christos if (internal_relocs != NULL
885 1.1 christos && elf_section_data (sec)->relocs != internal_relocs)
886 1.1 christos free (internal_relocs);
887 1.1 christos return FALSE;
888 1.1 christos }
889 1.1 christos #undef skip_relax_pass_0
890 1.1 christos #undef skip_relax_pass_1
891 1.1 christos
892 1.1 christos /* Return TRUE if NAME is an unwind table section name. */
894 1.1 christos
895 1.1 christos static inline bfd_boolean
896 1.1 christos is_unwind_section_name (bfd *abfd, const char *name)
897 1.1 christos {
898 1.1 christos if (elfNN_ia64_hpux_vec (abfd->xvec)
899 1.1 christos && !strcmp (name, ELF_STRING_ia64_unwind_hdr))
900 1.1 christos return FALSE;
901 1.1 christos
902 1.1 christos return ((CONST_STRNEQ (name, ELF_STRING_ia64_unwind)
903 1.1 christos && ! CONST_STRNEQ (name, ELF_STRING_ia64_unwind_info))
904 1.1 christos || CONST_STRNEQ (name, ELF_STRING_ia64_unwind_once));
905 1.1 christos }
906 1.1 christos
907 1.1 christos /* Handle an IA-64 specific section when reading an object file. This
908 1.1 christos is called when bfd_section_from_shdr finds a section with an unknown
909 1.1 christos type. */
910 1.1 christos
911 1.1 christos static bfd_boolean
912 1.1 christos elfNN_ia64_section_from_shdr (bfd *abfd,
913 1.1 christos Elf_Internal_Shdr *hdr,
914 1.1 christos const char *name,
915 1.1 christos int shindex)
916 1.1 christos {
917 1.1 christos /* There ought to be a place to keep ELF backend specific flags, but
918 1.1 christos at the moment there isn't one. We just keep track of the
919 1.1 christos sections by their name, instead. Fortunately, the ABI gives
920 1.1 christos suggested names for all the MIPS specific sections, so we will
921 1.1 christos probably get away with this. */
922 1.1 christos switch (hdr->sh_type)
923 1.1 christos {
924 1.1 christos case SHT_IA_64_UNWIND:
925 1.1 christos case SHT_IA_64_HP_OPT_ANOT:
926 1.1 christos break;
927 1.1 christos
928 1.1 christos case SHT_IA_64_EXT:
929 1.1 christos if (strcmp (name, ELF_STRING_ia64_archext) != 0)
930 1.1 christos return FALSE;
931 1.1 christos break;
932 1.1 christos
933 1.1 christos default:
934 1.1 christos return FALSE;
935 1.1 christos }
936 1.1 christos
937 1.1 christos if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
938 1.1 christos return FALSE;
939 1.1 christos
940 1.1 christos return TRUE;
941 1.1 christos }
942 1.1 christos
943 1.1 christos /* Convert IA-64 specific section flags to bfd internal section flags. */
944 1.1 christos
945 1.1 christos /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
946 1.1 christos flag. */
947 1.1 christos
948 1.1 christos static bfd_boolean
949 1.1 christos elfNN_ia64_section_flags (flagword *flags,
950 1.1 christos const Elf_Internal_Shdr *hdr)
951 1.1 christos {
952 1.1 christos if (hdr->sh_flags & SHF_IA_64_SHORT)
953 1.1 christos *flags |= SEC_SMALL_DATA;
954 1.1 christos
955 1.1 christos return TRUE;
956 1.1 christos }
957 1.1 christos
958 1.1 christos /* Set the correct type for an IA-64 ELF section. We do this by the
959 1.1 christos section name, which is a hack, but ought to work. */
960 1.1 christos
961 1.1 christos static bfd_boolean
962 1.1 christos elfNN_ia64_fake_sections (bfd *abfd, Elf_Internal_Shdr *hdr,
963 1.1.1.6 christos asection *sec)
964 1.1 christos {
965 1.1 christos const char *name;
966 1.1 christos
967 1.1 christos name = bfd_section_name (sec);
968 1.1 christos
969 1.1 christos if (is_unwind_section_name (abfd, name))
970 1.1 christos {
971 1.1 christos /* We don't have the sections numbered at this point, so sh_info
972 1.1 christos is set later, in elfNN_ia64_final_write_processing. */
973 1.1 christos hdr->sh_type = SHT_IA_64_UNWIND;
974 1.1 christos hdr->sh_flags |= SHF_LINK_ORDER;
975 1.1 christos }
976 1.1 christos else if (strcmp (name, ELF_STRING_ia64_archext) == 0)
977 1.1 christos hdr->sh_type = SHT_IA_64_EXT;
978 1.1 christos else if (strcmp (name, ".HP.opt_annot") == 0)
979 1.1 christos hdr->sh_type = SHT_IA_64_HP_OPT_ANOT;
980 1.1 christos else if (strcmp (name, ".reloc") == 0)
981 1.1 christos /* This is an ugly, but unfortunately necessary hack that is
982 1.1 christos needed when producing EFI binaries on IA-64. It tells
983 1.1 christos elf.c:elf_fake_sections() not to consider ".reloc" as a section
984 1.1 christos containing ELF relocation info. We need this hack in order to
985 1.1 christos be able to generate ELF binaries that can be translated into
986 1.1 christos EFI applications (which are essentially COFF objects). Those
987 1.1 christos files contain a COFF ".reloc" section inside an ELFNN object,
988 1.1 christos which would normally cause BFD to segfault because it would
989 1.1 christos attempt to interpret this section as containing relocation
990 1.1 christos entries for section "oc". With this hack enabled, ".reloc"
991 1.1 christos will be treated as a normal data section, which will avoid the
992 1.1 christos segfault. However, you won't be able to create an ELFNN binary
993 1.1 christos with a section named "oc" that needs relocations, but that's
994 1.1 christos the kind of ugly side-effects you get when detecting section
995 1.1 christos types based on their names... In practice, this limitation is
996 1.1 christos unlikely to bite. */
997 1.1 christos hdr->sh_type = SHT_PROGBITS;
998 1.1 christos
999 1.1 christos if (sec->flags & SEC_SMALL_DATA)
1000 1.1 christos hdr->sh_flags |= SHF_IA_64_SHORT;
1001 1.1 christos
1002 1.1 christos /* Some HP linkers look for the SHF_IA_64_HP_TLS flag instead of SHF_TLS. */
1003 1.1 christos
1004 1.1 christos if (elfNN_ia64_hpux_vec (abfd->xvec) && (sec->flags & SHF_TLS))
1005 1.1 christos hdr->sh_flags |= SHF_IA_64_HP_TLS;
1006 1.1 christos
1007 1.1 christos return TRUE;
1008 1.1 christos }
1009 1.1.1.6 christos
1010 1.1.1.6 christos /* The final processing done just before writing out an IA-64 ELF
1011 1.1 christos object file. */
1012 1.1 christos
1013 1.1 christos static bfd_boolean
1014 1.1 christos elfNN_ia64_final_write_processing (bfd *abfd)
1015 1.1 christos {
1016 1.1 christos Elf_Internal_Shdr *hdr;
1017 1.1 christos asection *s;
1018 1.1 christos
1019 1.1 christos for (s = abfd->sections; s; s = s->next)
1020 1.1 christos {
1021 1.1 christos hdr = &elf_section_data (s)->this_hdr;
1022 1.1 christos switch (hdr->sh_type)
1023 1.1 christos {
1024 1.1 christos case SHT_IA_64_UNWIND:
1025 1.1 christos /* The IA-64 processor-specific ABI requires setting sh_link
1026 1.1 christos to the unwind section, whereas HP-UX requires sh_info to
1027 1.1 christos do so. For maximum compatibility, we'll set both for
1028 1.1 christos now... */
1029 1.1 christos hdr->sh_info = hdr->sh_link;
1030 1.1 christos break;
1031 1.1 christos }
1032 1.1 christos }
1033 1.1 christos
1034 1.1 christos if (! elf_flags_init (abfd))
1035 1.1 christos {
1036 1.1 christos unsigned long flags = 0;
1037 1.1 christos
1038 1.1 christos if (abfd->xvec->byteorder == BFD_ENDIAN_BIG)
1039 1.1 christos flags |= EF_IA_64_BE;
1040 1.1 christos if (bfd_get_mach (abfd) == bfd_mach_ia64_elf64)
1041 1.1 christos flags |= EF_IA_64_ABI64;
1042 1.1.1.6 christos
1043 1.1 christos elf_elfheader(abfd)->e_flags = flags;
1044 1.1 christos elf_flags_init (abfd) = TRUE;
1045 1.1 christos }
1046 1.1 christos return _bfd_elf_final_write_processing (abfd);
1047 1.1 christos }
1048 1.1 christos
1049 1.1 christos /* Hook called by the linker routine which adds symbols from an object
1050 1.1 christos file. We use it to put .comm items in .sbss, and not .bss. */
1051 1.1 christos
1052 1.1 christos static bfd_boolean
1053 1.1 christos elfNN_ia64_add_symbol_hook (bfd *abfd,
1054 1.1 christos struct bfd_link_info *info,
1055 1.1 christos Elf_Internal_Sym *sym,
1056 1.1 christos const char **namep ATTRIBUTE_UNUSED,
1057 1.1 christos flagword *flagsp ATTRIBUTE_UNUSED,
1058 1.1.1.2 christos asection **secp,
1059 1.1 christos bfd_vma *valp)
1060 1.1 christos {
1061 1.1 christos if (sym->st_shndx == SHN_COMMON
1062 1.1 christos && !bfd_link_relocatable (info)
1063 1.1 christos && sym->st_size <= elf_gp_size (abfd))
1064 1.1 christos {
1065 1.1 christos /* Common symbols less than or equal to -G nn bytes are
1066 1.1 christos automatically put into .sbss. */
1067 1.1 christos
1068 1.1 christos asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
1069 1.1 christos
1070 1.1 christos if (scomm == NULL)
1071 1.1 christos {
1072 1.1 christos scomm = bfd_make_section_with_flags (abfd, ".scommon",
1073 1.1 christos (SEC_ALLOC
1074 1.1 christos | SEC_IS_COMMON
1075 1.1 christos | SEC_LINKER_CREATED));
1076 1.1 christos if (scomm == NULL)
1077 1.1 christos return FALSE;
1078 1.1 christos }
1079 1.1 christos
1080 1.1 christos *secp = scomm;
1081 1.1 christos *valp = sym->st_size;
1082 1.1 christos }
1083 1.1 christos
1084 1.1 christos return TRUE;
1085 1.1 christos }
1086 1.1 christos
1087 1.1 christos /* Return the number of additional phdrs we will need. */
1088 1.1 christos
1089 1.1 christos static int
1090 1.1 christos elfNN_ia64_additional_program_headers (bfd *abfd,
1091 1.1 christos struct bfd_link_info *info ATTRIBUTE_UNUSED)
1092 1.1 christos {
1093 1.1 christos asection *s;
1094 1.1 christos int ret = 0;
1095 1.1 christos
1096 1.1 christos /* See if we need a PT_IA_64_ARCHEXT segment. */
1097 1.1 christos s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext);
1098 1.1 christos if (s && (s->flags & SEC_LOAD))
1099 1.1 christos ++ret;
1100 1.1 christos
1101 1.1 christos /* Count how many PT_IA_64_UNWIND segments we need. */
1102 1.1 christos for (s = abfd->sections; s; s = s->next)
1103 1.1 christos if (is_unwind_section_name (abfd, s->name) && (s->flags & SEC_LOAD))
1104 1.1 christos ++ret;
1105 1.1 christos
1106 1.1 christos return ret;
1107 1.1 christos }
1108 1.1 christos
1109 1.1 christos static bfd_boolean
1110 1.1 christos elfNN_ia64_modify_segment_map (bfd *abfd,
1111 1.1 christos struct bfd_link_info *info ATTRIBUTE_UNUSED)
1112 1.1 christos {
1113 1.1 christos struct elf_segment_map *m, **pm;
1114 1.1 christos Elf_Internal_Shdr *hdr;
1115 1.1 christos asection *s;
1116 1.1 christos
1117 1.1 christos /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1118 1.1.1.2 christos all PT_LOAD segments. */
1119 1.1 christos s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext);
1120 1.1 christos if (s && (s->flags & SEC_LOAD))
1121 1.1 christos {
1122 1.1 christos for (m = elf_seg_map (abfd); m != NULL; m = m->next)
1123 1.1 christos if (m->p_type == PT_IA_64_ARCHEXT)
1124 1.1 christos break;
1125 1.1 christos if (m == NULL)
1126 1.1 christos {
1127 1.1 christos m = ((struct elf_segment_map *)
1128 1.1 christos bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
1129 1.1 christos if (m == NULL)
1130 1.1 christos return FALSE;
1131 1.1 christos
1132 1.1 christos m->p_type = PT_IA_64_ARCHEXT;
1133 1.1.1.2 christos m->count = 1;
1134 1.1 christos m->sections[0] = s;
1135 1.1 christos
1136 1.1 christos /* We want to put it after the PHDR and INTERP segments. */
1137 1.1 christos pm = &elf_seg_map (abfd);
1138 1.1 christos while (*pm != NULL
1139 1.1 christos && ((*pm)->p_type == PT_PHDR
1140 1.1 christos || (*pm)->p_type == PT_INTERP))
1141 1.1 christos pm = &(*pm)->next;
1142 1.1 christos
1143 1.1 christos m->next = *pm;
1144 1.1 christos *pm = m;
1145 1.1 christos }
1146 1.1 christos }
1147 1.1 christos
1148 1.1 christos /* Install PT_IA_64_UNWIND segments, if needed. */
1149 1.1 christos for (s = abfd->sections; s; s = s->next)
1150 1.1 christos {
1151 1.1 christos hdr = &elf_section_data (s)->this_hdr;
1152 1.1 christos if (hdr->sh_type != SHT_IA_64_UNWIND)
1153 1.1.1.2 christos continue;
1154 1.1 christos
1155 1.1 christos if (s && (s->flags & SEC_LOAD))
1156 1.1 christos {
1157 1.1 christos for (m = elf_seg_map (abfd); m != NULL; m = m->next)
1158 1.1 christos if (m->p_type == PT_IA_64_UNWIND)
1159 1.1 christos {
1160 1.1 christos int i;
1161 1.1 christos
1162 1.1 christos /* Look through all sections in the unwind segment
1163 1.1 christos for a match since there may be multiple sections
1164 1.1 christos to a segment. */
1165 1.1 christos for (i = m->count - 1; i >= 0; --i)
1166 1.1 christos if (m->sections[i] == s)
1167 1.1 christos break;
1168 1.1 christos
1169 1.1 christos if (i >= 0)
1170 1.1 christos break;
1171 1.1 christos }
1172 1.1 christos
1173 1.1 christos if (m == NULL)
1174 1.1 christos {
1175 1.1 christos m = ((struct elf_segment_map *)
1176 1.1 christos bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
1177 1.1 christos if (m == NULL)
1178 1.1 christos return FALSE;
1179 1.1 christos
1180 1.1 christos m->p_type = PT_IA_64_UNWIND;
1181 1.1 christos m->count = 1;
1182 1.1.1.2 christos m->sections[0] = s;
1183 1.1 christos m->next = NULL;
1184 1.1 christos
1185 1.1 christos /* We want to put it last. */
1186 1.1 christos pm = &elf_seg_map (abfd);
1187 1.1 christos while (*pm != NULL)
1188 1.1 christos pm = &(*pm)->next;
1189 1.1 christos *pm = m;
1190 1.1 christos }
1191 1.1 christos }
1192 1.1 christos }
1193 1.1 christos
1194 1.1 christos return TRUE;
1195 1.1 christos }
1196 1.1 christos
1197 1.1 christos /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1198 1.1.1.6 christos the input sections for each output section in the segment and testing
1199 1.1 christos for SHF_IA_64_NORECOV on each. */
1200 1.1 christos
1201 1.1 christos static bfd_boolean
1202 1.1 christos elfNN_ia64_modify_headers (bfd *abfd, struct bfd_link_info *info)
1203 1.1 christos {
1204 1.1.1.2 christos struct elf_obj_tdata *tdata = elf_tdata (abfd);
1205 1.1 christos struct elf_segment_map *m;
1206 1.1 christos Elf_Internal_Phdr *p;
1207 1.1 christos
1208 1.1 christos for (p = tdata->phdr, m = elf_seg_map (abfd); m != NULL; m = m->next, p++)
1209 1.1 christos if (m->p_type == PT_LOAD)
1210 1.1 christos {
1211 1.1 christos int i;
1212 1.1 christos for (i = m->count - 1; i >= 0; --i)
1213 1.1 christos {
1214 1.1 christos struct bfd_link_order *order = m->sections[i]->map_head.link_order;
1215 1.1 christos
1216 1.1 christos while (order != NULL)
1217 1.1 christos {
1218 1.1 christos if (order->type == bfd_indirect_link_order)
1219 1.1 christos {
1220 1.1 christos asection *is = order->u.indirect.section;
1221 1.1 christos bfd_vma flags = elf_section_data(is)->this_hdr.sh_flags;
1222 1.1 christos if (flags & SHF_IA_64_NORECOV)
1223 1.1 christos {
1224 1.1 christos p->p_flags |= PF_IA_64_NORECOV;
1225 1.1 christos goto found;
1226 1.1 christos }
1227 1.1 christos }
1228 1.1 christos order = order->next;
1229 1.1 christos }
1230 1.1.1.6 christos }
1231 1.1 christos found:;
1232 1.1 christos }
1233 1.1 christos
1234 1.1 christos return _bfd_elf_modify_headers (abfd, info);
1235 1.1 christos }
1236 1.1 christos
1237 1.1 christos /* According to the Tahoe assembler spec, all labels starting with a
1238 1.1 christos '.' are local. */
1239 1.1 christos
1240 1.1 christos static bfd_boolean
1241 1.1 christos elfNN_ia64_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
1242 1.1 christos const char *name)
1243 1.1 christos {
1244 1.1 christos return name[0] == '.';
1245 1.1 christos }
1246 1.1 christos
1247 1.1 christos /* Should we do dynamic things to this symbol? */
1248 1.1 christos
1249 1.1 christos static bfd_boolean
1250 1.1 christos elfNN_ia64_dynamic_symbol_p (struct elf_link_hash_entry *h,
1251 1.1 christos struct bfd_link_info *info, int r_type)
1252 1.1 christos {
1253 1.1 christos bfd_boolean ignore_protected
1254 1.1 christos = ((r_type & 0xf8) == 0x40 /* FPTR relocs */
1255 1.1 christos || (r_type & 0xf8) == 0x50); /* LTOFF_FPTR relocs */
1256 1.1 christos
1257 1.1 christos return _bfd_elf_dynamic_symbol_p (h, info, ignore_protected);
1258 1.1 christos }
1259 1.1 christos
1260 1.1 christos static struct bfd_hash_entry*
1262 1.1 christos elfNN_ia64_new_elf_hash_entry (struct bfd_hash_entry *entry,
1263 1.1 christos struct bfd_hash_table *table,
1264 1.1 christos const char *string)
1265 1.1 christos {
1266 1.1 christos struct elfNN_ia64_link_hash_entry *ret;
1267 1.1 christos ret = (struct elfNN_ia64_link_hash_entry *) entry;
1268 1.1 christos
1269 1.1 christos /* Allocate the structure if it has not already been allocated by a
1270 1.1 christos subclass. */
1271 1.1 christos if (!ret)
1272 1.1 christos ret = bfd_hash_allocate (table, sizeof (*ret));
1273 1.1 christos
1274 1.1 christos if (!ret)
1275 1.1 christos return 0;
1276 1.1 christos
1277 1.1 christos /* Call the allocation method of the superclass. */
1278 1.1 christos ret = ((struct elfNN_ia64_link_hash_entry *)
1279 1.1 christos _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1280 1.1 christos table, string));
1281 1.1 christos
1282 1.1 christos ret->info = NULL;
1283 1.1 christos ret->count = 0;
1284 1.1 christos ret->sorted_count = 0;
1285 1.1 christos ret->size = 0;
1286 1.1 christos return (struct bfd_hash_entry *) ret;
1287 1.1 christos }
1288 1.1 christos
1289 1.1 christos static void
1290 1.1 christos elfNN_ia64_hash_copy_indirect (struct bfd_link_info *info,
1291 1.1 christos struct elf_link_hash_entry *xdir,
1292 1.1 christos struct elf_link_hash_entry *xind)
1293 1.1 christos {
1294 1.1 christos struct elfNN_ia64_link_hash_entry *dir, *ind;
1295 1.1 christos
1296 1.1 christos dir = (struct elfNN_ia64_link_hash_entry *) xdir;
1297 1.1.1.4 christos ind = (struct elfNN_ia64_link_hash_entry *) xind;
1298 1.1.1.4 christos
1299 1.1 christos /* Copy down any references that we may have already seen to the
1300 1.1 christos symbol which just became indirect. */
1301 1.1 christos
1302 1.1 christos if (dir->root.versioned != versioned_hidden)
1303 1.1 christos dir->root.ref_dynamic |= ind->root.ref_dynamic;
1304 1.1 christos dir->root.ref_regular |= ind->root.ref_regular;
1305 1.1 christos dir->root.ref_regular_nonweak |= ind->root.ref_regular_nonweak;
1306 1.1 christos dir->root.needs_plt |= ind->root.needs_plt;
1307 1.1 christos
1308 1.1 christos if (ind->root.root.type != bfd_link_hash_indirect)
1309 1.1 christos return;
1310 1.1 christos
1311 1.1 christos /* Copy over the got and plt data. This would have been done
1312 1.1 christos by check_relocs. */
1313 1.1 christos
1314 1.1 christos if (ind->info != NULL)
1315 1.1 christos {
1316 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
1317 1.1 christos unsigned int count;
1318 1.1 christos
1319 1.1 christos if (dir->info)
1320 1.1 christos free (dir->info);
1321 1.1 christos
1322 1.1 christos dir->info = ind->info;
1323 1.1 christos dir->count = ind->count;
1324 1.1 christos dir->sorted_count = ind->sorted_count;
1325 1.1 christos dir->size = ind->size;
1326 1.1 christos
1327 1.1 christos ind->info = NULL;
1328 1.1 christos ind->count = 0;
1329 1.1 christos ind->sorted_count = 0;
1330 1.1 christos ind->size = 0;
1331 1.1 christos
1332 1.1 christos /* Fix up the dyn_sym_info pointers to the global symbol. */
1333 1.1 christos for (count = dir->count, dyn_i = dir->info;
1334 1.1 christos count != 0;
1335 1.1 christos count--, dyn_i++)
1336 1.1 christos dyn_i->h = &dir->root;
1337 1.1 christos }
1338 1.1 christos
1339 1.1 christos /* Copy over the dynindx. */
1340 1.1 christos
1341 1.1 christos if (ind->root.dynindx != -1)
1342 1.1 christos {
1343 1.1 christos if (dir->root.dynindx != -1)
1344 1.1 christos _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1345 1.1 christos dir->root.dynstr_index);
1346 1.1 christos dir->root.dynindx = ind->root.dynindx;
1347 1.1 christos dir->root.dynstr_index = ind->root.dynstr_index;
1348 1.1 christos ind->root.dynindx = -1;
1349 1.1 christos ind->root.dynstr_index = 0;
1350 1.1 christos }
1351 1.1 christos }
1352 1.1 christos
1353 1.1 christos static void
1354 1.1 christos elfNN_ia64_hash_hide_symbol (struct bfd_link_info *info,
1355 1.1 christos struct elf_link_hash_entry *xh,
1356 1.1 christos bfd_boolean force_local)
1357 1.1 christos {
1358 1.1 christos struct elfNN_ia64_link_hash_entry *h;
1359 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
1360 1.1 christos unsigned int count;
1361 1.1 christos
1362 1.1 christos h = (struct elfNN_ia64_link_hash_entry *)xh;
1363 1.1 christos
1364 1.1 christos _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local);
1365 1.1 christos
1366 1.1 christos for (count = h->count, dyn_i = h->info;
1367 1.1 christos count != 0;
1368 1.1 christos count--, dyn_i++)
1369 1.1 christos {
1370 1.1 christos dyn_i->want_plt2 = 0;
1371 1.1 christos dyn_i->want_plt = 0;
1372 1.1 christos }
1373 1.1 christos }
1374 1.1 christos
1375 1.1 christos /* Compute a hash of a local hash entry. */
1376 1.1 christos
1377 1.1 christos static hashval_t
1378 1.1 christos elfNN_ia64_local_htab_hash (const void *ptr)
1379 1.1 christos {
1380 1.1 christos struct elfNN_ia64_local_hash_entry *entry
1381 1.1 christos = (struct elfNN_ia64_local_hash_entry *) ptr;
1382 1.1 christos
1383 1.1 christos return ELF_LOCAL_SYMBOL_HASH (entry->id, entry->r_sym);
1384 1.1 christos }
1385 1.1 christos
1386 1.1 christos /* Compare local hash entries. */
1387 1.1 christos
1388 1.1 christos static int
1389 1.1 christos elfNN_ia64_local_htab_eq (const void *ptr1, const void *ptr2)
1390 1.1 christos {
1391 1.1 christos struct elfNN_ia64_local_hash_entry *entry1
1392 1.1 christos = (struct elfNN_ia64_local_hash_entry *) ptr1;
1393 1.1 christos struct elfNN_ia64_local_hash_entry *entry2
1394 1.1 christos = (struct elfNN_ia64_local_hash_entry *) ptr2;
1395 1.1 christos
1396 1.1 christos return entry1->id == entry2->id && entry1->r_sym == entry2->r_sym;
1397 1.1 christos }
1398 1.1 christos
1399 1.1 christos /* Free the global elfNN_ia64_dyn_sym_info array. */
1400 1.1 christos
1401 1.1 christos static bfd_boolean
1402 1.1 christos elfNN_ia64_global_dyn_info_free (void **xentry,
1403 1.1 christos void * unused ATTRIBUTE_UNUSED)
1404 1.1 christos {
1405 1.1 christos struct elfNN_ia64_link_hash_entry *entry
1406 1.1 christos = (struct elfNN_ia64_link_hash_entry *) xentry;
1407 1.1 christos
1408 1.1 christos if (entry->info)
1409 1.1 christos {
1410 1.1 christos free (entry->info);
1411 1.1 christos entry->info = NULL;
1412 1.1 christos entry->count = 0;
1413 1.1 christos entry->sorted_count = 0;
1414 1.1 christos entry->size = 0;
1415 1.1 christos }
1416 1.1 christos
1417 1.1 christos return TRUE;
1418 1.1 christos }
1419 1.1 christos
1420 1.1 christos /* Free the local elfNN_ia64_dyn_sym_info array. */
1421 1.1 christos
1422 1.1 christos static bfd_boolean
1423 1.1 christos elfNN_ia64_local_dyn_info_free (void **slot,
1424 1.1 christos void * unused ATTRIBUTE_UNUSED)
1425 1.1 christos {
1426 1.1 christos struct elfNN_ia64_local_hash_entry *entry
1427 1.1 christos = (struct elfNN_ia64_local_hash_entry *) *slot;
1428 1.1 christos
1429 1.1 christos if (entry->info)
1430 1.1 christos {
1431 1.1 christos free (entry->info);
1432 1.1 christos entry->info = NULL;
1433 1.1 christos entry->count = 0;
1434 1.1 christos entry->sorted_count = 0;
1435 1.1 christos entry->size = 0;
1436 1.1 christos }
1437 1.1 christos
1438 1.1 christos return TRUE;
1439 1.1.1.2 christos }
1440 1.1 christos
1441 1.1 christos /* Destroy IA-64 linker hash table. */
1442 1.1.1.2 christos
1443 1.1 christos static void
1444 1.1 christos elfNN_ia64_link_hash_table_free (bfd *obfd)
1445 1.1 christos {
1446 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info
1447 1.1 christos = (struct elfNN_ia64_link_hash_table *) obfd->link.hash;
1448 1.1 christos if (ia64_info->loc_hash_table)
1449 1.1 christos {
1450 1.1 christos htab_traverse (ia64_info->loc_hash_table,
1451 1.1 christos elfNN_ia64_local_dyn_info_free, NULL);
1452 1.1 christos htab_delete (ia64_info->loc_hash_table);
1453 1.1.1.2 christos }
1454 1.1.1.2 christos if (ia64_info->loc_hash_memory)
1455 1.1.1.2 christos objalloc_free ((struct objalloc *) ia64_info->loc_hash_memory);
1456 1.1.1.2 christos elf_link_hash_traverse (&ia64_info->root,
1457 1.1.1.2 christos elfNN_ia64_global_dyn_info_free, NULL);
1458 1.1.1.2 christos _bfd_elf_link_hash_table_free (obfd);
1459 1.1.1.2 christos }
1460 1.1.1.2 christos
1461 1.1.1.2 christos /* Create the derived linker hash table. The IA-64 ELF port uses this
1462 1.1.1.2 christos derived hash table to keep information specific to the IA-64 ElF
1463 1.1.1.2 christos linker (without using static variables). */
1464 1.1.1.2 christos
1465 1.1.1.2 christos static struct bfd_link_hash_table *
1466 1.1.1.2 christos elfNN_ia64_hash_table_create (bfd *abfd)
1467 1.1.1.2 christos {
1468 1.1.1.2 christos struct elfNN_ia64_link_hash_table *ret;
1469 1.1.1.2 christos
1470 1.1.1.2 christos ret = bfd_zmalloc ((bfd_size_type) sizeof (*ret));
1471 1.1.1.2 christos if (!ret)
1472 1.1.1.2 christos return NULL;
1473 1.1.1.2 christos
1474 1.1.1.2 christos if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1475 1.1.1.2 christos elfNN_ia64_new_elf_hash_entry,
1476 1.1.1.2 christos sizeof (struct elfNN_ia64_link_hash_entry),
1477 1.1.1.2 christos IA64_ELF_DATA))
1478 1.1.1.2 christos {
1479 1.1.1.2 christos free (ret);
1480 1.1.1.2 christos return NULL;
1481 1.1.1.2 christos }
1482 1.1.1.2 christos
1483 1.1.1.2 christos ret->loc_hash_table = htab_try_create (1024, elfNN_ia64_local_htab_hash,
1484 1.1.1.2 christos elfNN_ia64_local_htab_eq, NULL);
1485 1.1.1.2 christos ret->loc_hash_memory = objalloc_create ();
1486 1.1.1.2 christos if (!ret->loc_hash_table || !ret->loc_hash_memory)
1487 1.1.1.2 christos {
1488 1.1.1.2 christos elfNN_ia64_link_hash_table_free (abfd);
1489 1.1 christos return NULL;
1490 1.1 christos }
1491 1.1 christos ret->root.root.hash_table_free = elfNN_ia64_link_hash_table_free;
1492 1.1 christos
1493 1.1 christos return &ret->root.root;
1494 1.1 christos }
1495 1.1 christos
1496 1.1 christos /* Traverse both local and global hash tables. */
1497 1.1 christos
1498 1.1 christos struct elfNN_ia64_dyn_sym_traverse_data
1499 1.1 christos {
1500 1.1 christos bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, void *);
1501 1.1 christos void * data;
1502 1.1 christos };
1503 1.1 christos
1504 1.1 christos static bfd_boolean
1505 1.1 christos elfNN_ia64_global_dyn_sym_thunk (struct bfd_hash_entry *xentry,
1506 1.1 christos void * xdata)
1507 1.1 christos {
1508 1.1 christos struct elfNN_ia64_link_hash_entry *entry
1509 1.1 christos = (struct elfNN_ia64_link_hash_entry *) xentry;
1510 1.1 christos struct elfNN_ia64_dyn_sym_traverse_data *data
1511 1.1 christos = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1512 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
1513 1.1 christos unsigned int count;
1514 1.1 christos
1515 1.1 christos for (count = entry->count, dyn_i = entry->info;
1516 1.1 christos count != 0;
1517 1.1 christos count--, dyn_i++)
1518 1.1 christos if (! (*data->func) (dyn_i, data->data))
1519 1.1 christos return FALSE;
1520 1.1 christos return TRUE;
1521 1.1 christos }
1522 1.1 christos
1523 1.1 christos static bfd_boolean
1524 1.1 christos elfNN_ia64_local_dyn_sym_thunk (void **slot, void * xdata)
1525 1.1 christos {
1526 1.1 christos struct elfNN_ia64_local_hash_entry *entry
1527 1.1 christos = (struct elfNN_ia64_local_hash_entry *) *slot;
1528 1.1 christos struct elfNN_ia64_dyn_sym_traverse_data *data
1529 1.1 christos = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1530 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
1531 1.1 christos unsigned int count;
1532 1.1 christos
1533 1.1 christos for (count = entry->count, dyn_i = entry->info;
1534 1.1 christos count != 0;
1535 1.1 christos count--, dyn_i++)
1536 1.1 christos if (! (*data->func) (dyn_i, data->data))
1537 1.1 christos return FALSE;
1538 1.1 christos return TRUE;
1539 1.1 christos }
1540 1.1 christos
1541 1.1 christos static void
1542 1.1 christos elfNN_ia64_dyn_sym_traverse (struct elfNN_ia64_link_hash_table *ia64_info,
1543 1.1 christos bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, void *),
1544 1.1 christos void * data)
1545 1.1 christos {
1546 1.1 christos struct elfNN_ia64_dyn_sym_traverse_data xdata;
1547 1.1 christos
1548 1.1 christos xdata.func = func;
1549 1.1 christos xdata.data = data;
1550 1.1 christos
1551 1.1 christos elf_link_hash_traverse (&ia64_info->root,
1552 1.1 christos elfNN_ia64_global_dyn_sym_thunk, &xdata);
1553 1.1 christos htab_traverse (ia64_info->loc_hash_table,
1554 1.1 christos elfNN_ia64_local_dyn_sym_thunk, &xdata);
1555 1.1 christos }
1556 1.1 christos
1557 1.1 christos static bfd_boolean
1559 1.1 christos elfNN_ia64_create_dynamic_sections (bfd *abfd,
1560 1.1 christos struct bfd_link_info *info)
1561 1.1 christos {
1562 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
1563 1.1 christos asection *s;
1564 1.1 christos
1565 1.1 christos if (! _bfd_elf_create_dynamic_sections (abfd, info))
1566 1.1 christos return FALSE;
1567 1.1.1.6 christos
1568 1.1.1.6 christos ia64_info = elfNN_ia64_hash_table (info);
1569 1.1 christos if (ia64_info == NULL)
1570 1.1.1.6 christos return FALSE;
1571 1.1.1.2 christos
1572 1.1 christos {
1573 1.1 christos flagword flags = bfd_section_flags (ia64_info->root.sgot);
1574 1.1 christos bfd_set_section_flags (ia64_info->root.sgot, SEC_SMALL_DATA | flags);
1575 1.1 christos /* The .got section is always aligned at 8 bytes. */
1576 1.1 christos if (!bfd_set_section_alignment (ia64_info->root.sgot, 3))
1577 1.1 christos return FALSE;
1578 1.1 christos }
1579 1.1 christos
1580 1.1 christos if (!get_pltoff (abfd, info, ia64_info))
1581 1.1 christos return FALSE;
1582 1.1 christos
1583 1.1 christos s = bfd_make_section_anyway_with_flags (abfd, ".rela.IA_64.pltoff",
1584 1.1.1.6 christos (SEC_ALLOC | SEC_LOAD
1585 1.1 christos | SEC_HAS_CONTENTS
1586 1.1 christos | SEC_IN_MEMORY
1587 1.1 christos | SEC_LINKER_CREATED
1588 1.1 christos | SEC_READONLY));
1589 1.1 christos if (s == NULL
1590 1.1 christos || !bfd_set_section_alignment (s, LOG_SECTION_ALIGN))
1591 1.1 christos return FALSE;
1592 1.1 christos ia64_info->rel_pltoff_sec = s;
1593 1.1 christos
1594 1.1 christos return TRUE;
1595 1.1 christos }
1596 1.1 christos
1597 1.1 christos /* Find and/or create a hash entry for local symbol. */
1598 1.1 christos static struct elfNN_ia64_local_hash_entry *
1599 1.1 christos get_local_sym_hash (struct elfNN_ia64_link_hash_table *ia64_info,
1600 1.1 christos bfd *abfd, const Elf_Internal_Rela *rel,
1601 1.1 christos bfd_boolean create)
1602 1.1 christos {
1603 1.1 christos struct elfNN_ia64_local_hash_entry e, *ret;
1604 1.1 christos asection *sec = abfd->sections;
1605 1.1 christos hashval_t h = ELF_LOCAL_SYMBOL_HASH (sec->id,
1606 1.1 christos ELFNN_R_SYM (rel->r_info));
1607 1.1 christos void **slot;
1608 1.1 christos
1609 1.1 christos e.id = sec->id;
1610 1.1 christos e.r_sym = ELFNN_R_SYM (rel->r_info);
1611 1.1 christos slot = htab_find_slot_with_hash (ia64_info->loc_hash_table, &e, h,
1612 1.1 christos create ? INSERT : NO_INSERT);
1613 1.1 christos
1614 1.1 christos if (!slot)
1615 1.1 christos return NULL;
1616 1.1 christos
1617 1.1 christos if (*slot)
1618 1.1 christos return (struct elfNN_ia64_local_hash_entry *) *slot;
1619 1.1 christos
1620 1.1 christos ret = (struct elfNN_ia64_local_hash_entry *)
1621 1.1 christos objalloc_alloc ((struct objalloc *) ia64_info->loc_hash_memory,
1622 1.1 christos sizeof (struct elfNN_ia64_local_hash_entry));
1623 1.1 christos if (ret)
1624 1.1 christos {
1625 1.1 christos memset (ret, 0, sizeof (*ret));
1626 1.1 christos ret->id = sec->id;
1627 1.1 christos ret->r_sym = ELFNN_R_SYM (rel->r_info);
1628 1.1 christos *slot = ret;
1629 1.1 christos }
1630 1.1 christos return ret;
1631 1.1 christos }
1632 1.1 christos
1633 1.1 christos /* Used to sort elfNN_ia64_dyn_sym_info array. */
1634 1.1 christos
1635 1.1 christos static int
1636 1.1 christos addend_compare (const void *xp, const void *yp)
1637 1.1 christos {
1638 1.1 christos const struct elfNN_ia64_dyn_sym_info *x
1639 1.1 christos = (const struct elfNN_ia64_dyn_sym_info *) xp;
1640 1.1 christos const struct elfNN_ia64_dyn_sym_info *y
1641 1.1 christos = (const struct elfNN_ia64_dyn_sym_info *) yp;
1642 1.1 christos
1643 1.1 christos return x->addend < y->addend ? -1 : x->addend > y->addend ? 1 : 0;
1644 1.1 christos }
1645 1.1 christos
1646 1.1 christos /* Sort elfNN_ia64_dyn_sym_info array and remove duplicates. */
1647 1.1 christos
1648 1.1 christos static unsigned int
1649 1.1 christos sort_dyn_sym_info (struct elfNN_ia64_dyn_sym_info *info,
1650 1.1 christos unsigned int count)
1651 1.1 christos {
1652 1.1 christos bfd_vma curr, prev, got_offset;
1653 1.1 christos unsigned int i, kept, dupes, diff, dest, src, len;
1654 1.1 christos
1655 1.1 christos qsort (info, count, sizeof (*info), addend_compare);
1656 1.1 christos
1657 1.1 christos /* Find the first duplicate. */
1658 1.1 christos prev = info [0].addend;
1659 1.1 christos got_offset = info [0].got_offset;
1660 1.1 christos for (i = 1; i < count; i++)
1661 1.1 christos {
1662 1.1 christos curr = info [i].addend;
1663 1.1 christos if (curr == prev)
1664 1.1 christos {
1665 1.1 christos /* For duplicates, make sure that GOT_OFFSET is valid. */
1666 1.1 christos if (got_offset == (bfd_vma) -1)
1667 1.1 christos got_offset = info [i].got_offset;
1668 1.1 christos break;
1669 1.1 christos }
1670 1.1 christos got_offset = info [i].got_offset;
1671 1.1 christos prev = curr;
1672 1.1 christos }
1673 1.1 christos
1674 1.1 christos /* We may move a block of elements to here. */
1675 1.1 christos dest = i++;
1676 1.1 christos
1677 1.1 christos /* Remove duplicates. */
1678 1.1 christos if (i < count)
1679 1.1 christos {
1680 1.1 christos while (i < count)
1681 1.1 christos {
1682 1.1 christos /* For duplicates, make sure that the kept one has a valid
1683 1.1 christos got_offset. */
1684 1.1 christos kept = dest - 1;
1685 1.1 christos if (got_offset != (bfd_vma) -1)
1686 1.1 christos info [kept].got_offset = got_offset;
1687 1.1 christos
1688 1.1 christos curr = info [i].addend;
1689 1.1 christos got_offset = info [i].got_offset;
1690 1.1 christos
1691 1.1 christos /* Move a block of elements whose first one is different from
1692 1.1 christos the previous. */
1693 1.1 christos if (curr == prev)
1694 1.1 christos {
1695 1.1 christos for (src = i + 1; src < count; src++)
1696 1.1 christos {
1697 1.1 christos if (info [src].addend != curr)
1698 1.1 christos break;
1699 1.1 christos /* For duplicates, make sure that GOT_OFFSET is
1700 1.1 christos valid. */
1701 1.1 christos if (got_offset == (bfd_vma) -1)
1702 1.1 christos got_offset = info [src].got_offset;
1703 1.1 christos }
1704 1.1 christos
1705 1.1 christos /* Make sure that the kept one has a valid got_offset. */
1706 1.1 christos if (got_offset != (bfd_vma) -1)
1707 1.1 christos info [kept].got_offset = got_offset;
1708 1.1 christos }
1709 1.1 christos else
1710 1.1 christos src = i;
1711 1.1 christos
1712 1.1 christos if (src >= count)
1713 1.1 christos break;
1714 1.1 christos
1715 1.1 christos /* Find the next duplicate. SRC will be kept. */
1716 1.1 christos prev = info [src].addend;
1717 1.1 christos got_offset = info [src].got_offset;
1718 1.1 christos for (dupes = src + 1; dupes < count; dupes ++)
1719 1.1 christos {
1720 1.1 christos curr = info [dupes].addend;
1721 1.1 christos if (curr == prev)
1722 1.1 christos {
1723 1.1 christos /* Make sure that got_offset is valid. */
1724 1.1 christos if (got_offset == (bfd_vma) -1)
1725 1.1 christos got_offset = info [dupes].got_offset;
1726 1.1 christos
1727 1.1 christos /* For duplicates, make sure that the kept one has
1728 1.1 christos a valid got_offset. */
1729 1.1 christos if (got_offset != (bfd_vma) -1)
1730 1.1 christos info [dupes - 1].got_offset = got_offset;
1731 1.1 christos break;
1732 1.1 christos }
1733 1.1 christos got_offset = info [dupes].got_offset;
1734 1.1 christos prev = curr;
1735 1.1 christos }
1736 1.1 christos
1737 1.1 christos /* How much to move. */
1738 1.1 christos len = dupes - src;
1739 1.1 christos i = dupes + 1;
1740 1.1 christos
1741 1.1 christos if (len == 1 && dupes < count)
1742 1.1 christos {
1743 1.1 christos /* If we only move 1 element, we combine it with the next
1744 1.1 christos one. There must be at least a duplicate. Find the
1745 1.1 christos next different one. */
1746 1.1 christos for (diff = dupes + 1, src++; diff < count; diff++, src++)
1747 1.1 christos {
1748 1.1 christos if (info [diff].addend != curr)
1749 1.1 christos break;
1750 1.1 christos /* Make sure that got_offset is valid. */
1751 1.1 christos if (got_offset == (bfd_vma) -1)
1752 1.1 christos got_offset = info [diff].got_offset;
1753 1.1 christos }
1754 1.1 christos
1755 1.1 christos /* Makre sure that the last duplicated one has an valid
1756 1.1 christos offset. */
1757 1.1 christos BFD_ASSERT (curr == prev);
1758 1.1 christos if (got_offset != (bfd_vma) -1)
1759 1.1 christos info [diff - 1].got_offset = got_offset;
1760 1.1 christos
1761 1.1 christos if (diff < count)
1762 1.1 christos {
1763 1.1 christos /* Find the next duplicate. Track the current valid
1764 1.1 christos offset. */
1765 1.1 christos prev = info [diff].addend;
1766 1.1 christos got_offset = info [diff].got_offset;
1767 1.1 christos for (dupes = diff + 1; dupes < count; dupes ++)
1768 1.1 christos {
1769 1.1 christos curr = info [dupes].addend;
1770 1.1 christos if (curr == prev)
1771 1.1 christos {
1772 1.1 christos /* For duplicates, make sure that GOT_OFFSET
1773 1.1 christos is valid. */
1774 1.1 christos if (got_offset == (bfd_vma) -1)
1775 1.1 christos got_offset = info [dupes].got_offset;
1776 1.1 christos break;
1777 1.1 christos }
1778 1.1 christos got_offset = info [dupes].got_offset;
1779 1.1 christos prev = curr;
1780 1.1 christos diff++;
1781 1.1 christos }
1782 1.1 christos
1783 1.1 christos len = diff - src + 1;
1784 1.1 christos i = diff + 1;
1785 1.1 christos }
1786 1.1 christos }
1787 1.1 christos
1788 1.1 christos memmove (&info [dest], &info [src], len * sizeof (*info));
1789 1.1 christos
1790 1.1 christos dest += len;
1791 1.1 christos }
1792 1.1 christos
1793 1.1 christos count = dest;
1794 1.1 christos }
1795 1.1 christos else
1796 1.1 christos {
1797 1.1 christos /* When we get here, either there is no duplicate at all or
1798 1.1 christos the only duplicate is the last element. */
1799 1.1 christos if (dest < count)
1800 1.1 christos {
1801 1.1 christos /* If the last element is a duplicate, make sure that the
1802 1.1 christos kept one has a valid got_offset. We also update count. */
1803 1.1 christos if (got_offset != (bfd_vma) -1)
1804 1.1 christos info [dest - 1].got_offset = got_offset;
1805 1.1 christos count = dest;
1806 1.1 christos }
1807 1.1 christos }
1808 1.1 christos
1809 1.1 christos return count;
1810 1.1 christos }
1811 1.1 christos
1812 1.1 christos /* Find and/or create a descriptor for dynamic symbol info. This will
1813 1.1 christos vary based on global or local symbol, and the addend to the reloc.
1814 1.1 christos
1815 1.1 christos We don't sort when inserting. Also, we sort and eliminate
1816 1.1 christos duplicates if there is an unsorted section. Typically, this will
1817 1.1 christos only happen once, because we do all insertions before lookups. We
1818 1.1 christos then use bsearch to do a lookup. This also allows lookups to be
1819 1.1 christos fast. So we have fast insertion (O(log N) due to duplicate check),
1820 1.1 christos fast lookup (O(log N)) and one sort (O(N log N) expected time).
1821 1.1 christos Previously, all lookups were O(N) because of the use of the linked
1822 1.1 christos list and also all insertions were O(N) because of the check for
1823 1.1 christos duplicates. There are some complications here because the array
1824 1.1 christos size grows occasionally, which may add an O(N) factor, but this
1825 1.1 christos should be rare. Also, we free the excess array allocation, which
1826 1.1 christos requires a copy which is O(N), but this only happens once. */
1827 1.1 christos
1828 1.1 christos static struct elfNN_ia64_dyn_sym_info *
1829 1.1 christos get_dyn_sym_info (struct elfNN_ia64_link_hash_table *ia64_info,
1830 1.1 christos struct elf_link_hash_entry *h, bfd *abfd,
1831 1.1 christos const Elf_Internal_Rela *rel, bfd_boolean create)
1832 1.1 christos {
1833 1.1 christos struct elfNN_ia64_dyn_sym_info **info_p, *info, *dyn_i, key;
1834 1.1 christos unsigned int *count_p, *sorted_count_p, *size_p;
1835 1.1 christos unsigned int count, sorted_count, size;
1836 1.1 christos bfd_vma addend = rel ? rel->r_addend : 0;
1837 1.1 christos bfd_size_type amt;
1838 1.1 christos
1839 1.1 christos if (h)
1840 1.1 christos {
1841 1.1 christos struct elfNN_ia64_link_hash_entry *global_h;
1842 1.1 christos
1843 1.1 christos global_h = (struct elfNN_ia64_link_hash_entry *) h;
1844 1.1 christos info_p = &global_h->info;
1845 1.1 christos count_p = &global_h->count;
1846 1.1 christos sorted_count_p = &global_h->sorted_count;
1847 1.1 christos size_p = &global_h->size;
1848 1.1 christos }
1849 1.1 christos else
1850 1.1 christos {
1851 1.1 christos struct elfNN_ia64_local_hash_entry *loc_h;
1852 1.1 christos
1853 1.1 christos loc_h = get_local_sym_hash (ia64_info, abfd, rel, create);
1854 1.1 christos if (!loc_h)
1855 1.1 christos {
1856 1.1 christos BFD_ASSERT (!create);
1857 1.1 christos return NULL;
1858 1.1 christos }
1859 1.1 christos
1860 1.1 christos info_p = &loc_h->info;
1861 1.1 christos count_p = &loc_h->count;
1862 1.1 christos sorted_count_p = &loc_h->sorted_count;
1863 1.1 christos size_p = &loc_h->size;
1864 1.1 christos }
1865 1.1 christos
1866 1.1 christos count = *count_p;
1867 1.1.1.4 christos sorted_count = *sorted_count_p;
1868 1.1 christos size = *size_p;
1869 1.1 christos info = *info_p;
1870 1.1 christos if (create)
1871 1.1 christos {
1872 1.1 christos /* When we create the array, we don't check for duplicates,
1873 1.1 christos except in the previously sorted section if one exists, and
1874 1.1 christos against the last inserted entry. This allows insertions to
1875 1.1 christos be fast. */
1876 1.1 christos if (info)
1877 1.1 christos {
1878 1.1 christos if (sorted_count)
1879 1.1 christos {
1880 1.1 christos /* Try bsearch first on the sorted section. */
1881 1.1 christos key.addend = addend;
1882 1.1 christos dyn_i = bsearch (&key, info, sorted_count,
1883 1.1 christos sizeof (*info), addend_compare);
1884 1.1 christos
1885 1.1 christos if (dyn_i)
1886 1.1 christos {
1887 1.1 christos return dyn_i;
1888 1.1 christos }
1889 1.1 christos }
1890 1.1 christos
1891 1.1 christos /* Do a quick check for the last inserted entry. */
1892 1.1 christos dyn_i = info + count - 1;
1893 1.1 christos if (dyn_i->addend == addend)
1894 1.1 christos {
1895 1.1 christos return dyn_i;
1896 1.1 christos }
1897 1.1 christos }
1898 1.1 christos
1899 1.1 christos if (size == 0)
1900 1.1 christos {
1901 1.1 christos /* It is the very first element. We create the array of size
1902 1.1 christos 1. */
1903 1.1 christos size = 1;
1904 1.1 christos amt = size * sizeof (*info);
1905 1.1 christos info = bfd_malloc (amt);
1906 1.1 christos }
1907 1.1 christos else if (size <= count)
1908 1.1 christos {
1909 1.1 christos /* We double the array size every time when we reach the
1910 1.1 christos size limit. */
1911 1.1 christos size += size;
1912 1.1 christos amt = size * sizeof (*info);
1913 1.1 christos info = bfd_realloc (info, amt);
1914 1.1 christos }
1915 1.1 christos else
1916 1.1 christos goto has_space;
1917 1.1 christos
1918 1.1 christos if (info == NULL)
1919 1.1 christos return NULL;
1920 1.1 christos *size_p = size;
1921 1.1 christos *info_p = info;
1922 1.1 christos
1923 1.1 christos has_space:
1924 1.1 christos /* Append the new one to the array. */
1925 1.1 christos dyn_i = info + count;
1926 1.1 christos memset (dyn_i, 0, sizeof (*dyn_i));
1927 1.1 christos dyn_i->got_offset = (bfd_vma) -1;
1928 1.1 christos dyn_i->addend = addend;
1929 1.1 christos
1930 1.1 christos /* We increment count only since the new ones are unsorted and
1931 1.1 christos may have duplicate. */
1932 1.1 christos (*count_p)++;
1933 1.1 christos }
1934 1.1 christos else
1935 1.1 christos {
1936 1.1 christos /* It is a lookup without insertion. Sort array if part of the
1937 1.1 christos array isn't sorted. */
1938 1.1 christos if (count != sorted_count)
1939 1.1 christos {
1940 1.1 christos count = sort_dyn_sym_info (info, count);
1941 1.1 christos *count_p = count;
1942 1.1 christos *sorted_count_p = count;
1943 1.1 christos }
1944 1.1 christos
1945 1.1 christos /* Free unused memory. */
1946 1.1 christos if (size != count)
1947 1.1 christos {
1948 1.1 christos amt = count * sizeof (*info);
1949 1.1 christos info = bfd_malloc (amt);
1950 1.1 christos if (info != NULL)
1951 1.1 christos {
1952 1.1 christos memcpy (info, *info_p, amt);
1953 1.1 christos free (*info_p);
1954 1.1 christos *size_p = count;
1955 1.1 christos *info_p = info;
1956 1.1 christos }
1957 1.1 christos }
1958 1.1 christos
1959 1.1 christos key.addend = addend;
1960 1.1 christos dyn_i = bsearch (&key, info, count,
1961 1.1 christos sizeof (*info), addend_compare);
1962 1.1 christos }
1963 1.1 christos
1964 1.1 christos return dyn_i;
1965 1.1 christos }
1966 1.1 christos
1967 1.1 christos static asection *
1968 1.1 christos get_got (bfd *abfd, struct bfd_link_info *info,
1969 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info)
1970 1.1 christos {
1971 1.1 christos asection *got;
1972 1.1 christos bfd *dynobj;
1973 1.1 christos
1974 1.1 christos got = ia64_info->root.sgot;
1975 1.1 christos if (!got)
1976 1.1 christos {
1977 1.1.1.2 christos flagword flags;
1978 1.1 christos
1979 1.1 christos dynobj = ia64_info->root.dynobj;
1980 1.1 christos if (!dynobj)
1981 1.1 christos ia64_info->root.dynobj = dynobj = abfd;
1982 1.1.1.6 christos if (!_bfd_elf_create_got_section (dynobj, info))
1983 1.1.1.2 christos return NULL;
1984 1.1 christos
1985 1.1.1.6 christos got = ia64_info->root.sgot;
1986 1.1.1.6 christos
1987 1.1.1.2 christos /* The .got section is always aligned at 8 bytes. */
1988 1.1 christos if (!bfd_set_section_alignment (got, 3))
1989 1.1 christos return NULL;
1990 1.1 christos
1991 1.1 christos flags = bfd_section_flags (got);
1992 1.1 christos if (!bfd_set_section_flags (got, SEC_SMALL_DATA | flags))
1993 1.1 christos return NULL;
1994 1.1 christos }
1995 1.1 christos
1996 1.1 christos return got;
1997 1.1 christos }
1998 1.1 christos
1999 1.1 christos /* Create function descriptor section (.opd). This section is called .opd
2000 1.1 christos because it contains "official procedure descriptors". The "official"
2001 1.1 christos refers to the fact that these descriptors are used when taking the address
2002 1.1 christos of a procedure, thus ensuring a unique address for each procedure. */
2003 1.1 christos
2004 1.1 christos static asection *
2005 1.1 christos get_fptr (bfd *abfd, struct bfd_link_info *info,
2006 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info)
2007 1.1 christos {
2008 1.1 christos asection *fptr;
2009 1.1 christos bfd *dynobj;
2010 1.1 christos
2011 1.1 christos fptr = ia64_info->fptr_sec;
2012 1.1 christos if (!fptr)
2013 1.1 christos {
2014 1.1 christos dynobj = ia64_info->root.dynobj;
2015 1.1 christos if (!dynobj)
2016 1.1 christos ia64_info->root.dynobj = dynobj = abfd;
2017 1.1.1.2 christos
2018 1.1.1.2 christos fptr = bfd_make_section_anyway_with_flags (dynobj, ".opd",
2019 1.1 christos (SEC_ALLOC
2020 1.1 christos | SEC_LOAD
2021 1.1.1.6 christos | SEC_HAS_CONTENTS
2022 1.1 christos | SEC_IN_MEMORY
2023 1.1 christos | (bfd_link_pie (info)
2024 1.1 christos ? 0 : SEC_READONLY)
2025 1.1 christos | SEC_LINKER_CREATED));
2026 1.1 christos if (!fptr
2027 1.1 christos || !bfd_set_section_alignment (fptr, 4))
2028 1.1 christos {
2029 1.1.1.2 christos BFD_ASSERT (0);
2030 1.1 christos return NULL;
2031 1.1 christos }
2032 1.1 christos
2033 1.1 christos ia64_info->fptr_sec = fptr;
2034 1.1 christos
2035 1.1 christos if (bfd_link_pie (info))
2036 1.1 christos {
2037 1.1 christos asection *fptr_rel;
2038 1.1 christos fptr_rel = bfd_make_section_anyway_with_flags (dynobj, ".rela.opd",
2039 1.1.1.6 christos (SEC_ALLOC | SEC_LOAD
2040 1.1 christos | SEC_HAS_CONTENTS
2041 1.1 christos | SEC_IN_MEMORY
2042 1.1 christos | SEC_LINKER_CREATED
2043 1.1 christos | SEC_READONLY));
2044 1.1 christos if (fptr_rel == NULL
2045 1.1 christos || !bfd_set_section_alignment (fptr_rel, 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 1.1.1.6 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 (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 1.1.1.6 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 (srel, LOG_SECTION_ALIGN))
2123 1.1 christos return NULL;
2124 1.1 christos }
2125 1.1 christos
2126 1.1 christos return srel;
2127 1.1 christos }
2128 1.1 christos
2129 1.1 christos static bfd_boolean
2130 1.1 christos count_dyn_reloc (bfd *abfd, struct elfNN_ia64_dyn_sym_info *dyn_i,
2131 1.1 christos asection *srel, int type, bfd_boolean reltext)
2132 1.1 christos {
2133 1.1 christos struct elfNN_ia64_dyn_reloc_entry *rent;
2134 1.1 christos
2135 1.1 christos for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
2136 1.1 christos if (rent->srel == srel && rent->type == type)
2137 1.1 christos break;
2138 1.1 christos
2139 1.1 christos if (!rent)
2140 1.1 christos {
2141 1.1 christos rent = ((struct elfNN_ia64_dyn_reloc_entry *)
2142 1.1 christos bfd_alloc (abfd, (bfd_size_type) sizeof (*rent)));
2143 1.1 christos if (!rent)
2144 1.1 christos return FALSE;
2145 1.1 christos
2146 1.1 christos rent->next = dyn_i->reloc_entries;
2147 1.1 christos rent->srel = srel;
2148 1.1 christos rent->type = type;
2149 1.1 christos rent->count = 0;
2150 1.1 christos dyn_i->reloc_entries = rent;
2151 1.1 christos }
2152 1.1 christos rent->reltext = reltext;
2153 1.1 christos rent->count++;
2154 1.1 christos
2155 1.1 christos return TRUE;
2156 1.1 christos }
2157 1.1 christos
2158 1.1 christos static bfd_boolean
2159 1.1 christos elfNN_ia64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2160 1.1 christos asection *sec,
2161 1.1 christos const Elf_Internal_Rela *relocs)
2162 1.1 christos {
2163 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
2164 1.1 christos const Elf_Internal_Rela *relend;
2165 1.1 christos Elf_Internal_Shdr *symtab_hdr;
2166 1.1 christos const Elf_Internal_Rela *rel;
2167 1.1 christos asection *got, *fptr, *srel, *pltoff;
2168 1.1 christos enum {
2169 1.1 christos NEED_GOT = 1,
2170 1.1 christos NEED_GOTX = 2,
2171 1.1 christos NEED_FPTR = 4,
2172 1.1 christos NEED_PLTOFF = 8,
2173 1.1 christos NEED_MIN_PLT = 16,
2174 1.1 christos NEED_FULL_PLT = 32,
2175 1.1 christos NEED_DYNREL = 64,
2176 1.1 christos NEED_LTOFF_FPTR = 128,
2177 1.1 christos NEED_TPREL = 256,
2178 1.1 christos NEED_DTPMOD = 512,
2179 1.1 christos NEED_DTPREL = 1024
2180 1.1.1.2 christos };
2181 1.1 christos int need_entry;
2182 1.1 christos struct elf_link_hash_entry *h;
2183 1.1 christos unsigned long r_symndx;
2184 1.1 christos bfd_boolean maybe_dynamic;
2185 1.1 christos
2186 1.1 christos if (bfd_link_relocatable (info))
2187 1.1 christos return TRUE;
2188 1.1 christos
2189 1.1 christos symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2190 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
2191 1.1 christos if (ia64_info == NULL)
2192 1.1 christos return FALSE;
2193 1.1 christos
2194 1.1 christos got = fptr = srel = pltoff = NULL;
2195 1.1 christos
2196 1.1 christos relend = relocs + sec->reloc_count;
2197 1.1 christos
2198 1.1 christos /* We scan relocations first to create dynamic relocation arrays. We
2199 1.1 christos modified get_dyn_sym_info to allow fast insertion and support fast
2200 1.1 christos lookup in the next loop. */
2201 1.1 christos for (rel = relocs; rel < relend; ++rel)
2202 1.1 christos {
2203 1.1 christos r_symndx = ELFNN_R_SYM (rel->r_info);
2204 1.1 christos if (r_symndx >= symtab_hdr->sh_info)
2205 1.1 christos {
2206 1.1 christos long indx = r_symndx - symtab_hdr->sh_info;
2207 1.1 christos h = elf_sym_hashes (abfd)[indx];
2208 1.1 christos while (h->root.type == bfd_link_hash_indirect
2209 1.1.1.4 christos || h->root.type == bfd_link_hash_warning)
2210 1.1.1.4 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
2211 1.1.1.4 christos }
2212 1.1 christos else
2213 1.1 christos h = NULL;
2214 1.1 christos
2215 1.1 christos if (h && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2216 1.1.1.2 christos continue;
2217 1.1 christos
2218 1.1 christos /* We can only get preliminary data on whether a symbol is
2219 1.1 christos locally or externally defined, as not all of the input files
2220 1.1 christos have yet been processed. Do something with what we know, as
2221 1.1 christos this may help reduce memory usage and processing time later. */
2222 1.1 christos maybe_dynamic = (h && ((!bfd_link_executable (info)
2223 1.1 christos && (!SYMBOLIC_BIND (info, h)
2224 1.1 christos || info->unresolved_syms_in_shared_libs == RM_IGNORE))
2225 1.1 christos || !h->def_regular
2226 1.1 christos || h->root.type == bfd_link_hash_defweak));
2227 1.1.1.2 christos
2228 1.1 christos need_entry = 0;
2229 1.1 christos switch (ELFNN_R_TYPE (rel->r_info))
2230 1.1 christos {
2231 1.1 christos case R_IA64_TPREL64MSB:
2232 1.1 christos case R_IA64_TPREL64LSB:
2233 1.1.1.2 christos if (bfd_link_pic (info) || maybe_dynamic)
2234 1.1 christos need_entry = NEED_DYNREL;
2235 1.1 christos break;
2236 1.1 christos
2237 1.1 christos case R_IA64_LTOFF_TPREL22:
2238 1.1 christos need_entry = NEED_TPREL;
2239 1.1 christos if (bfd_link_pic (info))
2240 1.1 christos info->flags |= DF_STATIC_TLS;
2241 1.1.1.2 christos break;
2242 1.1 christos
2243 1.1 christos case R_IA64_DTPREL32MSB:
2244 1.1 christos case R_IA64_DTPREL32LSB:
2245 1.1 christos case R_IA64_DTPREL64MSB:
2246 1.1 christos case R_IA64_DTPREL64LSB:
2247 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2248 1.1 christos need_entry = NEED_DYNREL;
2249 1.1 christos break;
2250 1.1 christos
2251 1.1.1.2 christos case R_IA64_LTOFF_DTPREL22:
2252 1.1 christos need_entry = NEED_DTPREL;
2253 1.1 christos break;
2254 1.1 christos
2255 1.1 christos case R_IA64_DTPMOD64MSB:
2256 1.1 christos case R_IA64_DTPMOD64LSB:
2257 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2258 1.1 christos need_entry = NEED_DYNREL;
2259 1.1 christos break;
2260 1.1 christos
2261 1.1 christos case R_IA64_LTOFF_DTPMOD22:
2262 1.1 christos need_entry = NEED_DTPMOD;
2263 1.1 christos break;
2264 1.1 christos
2265 1.1 christos case R_IA64_LTOFF_FPTR22:
2266 1.1 christos case R_IA64_LTOFF_FPTR64I:
2267 1.1 christos case R_IA64_LTOFF_FPTR32MSB:
2268 1.1 christos case R_IA64_LTOFF_FPTR32LSB:
2269 1.1 christos case R_IA64_LTOFF_FPTR64MSB:
2270 1.1 christos case R_IA64_LTOFF_FPTR64LSB:
2271 1.1 christos need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR;
2272 1.1 christos break;
2273 1.1.1.2 christos
2274 1.1 christos case R_IA64_FPTR64I:
2275 1.1 christos case R_IA64_FPTR32MSB:
2276 1.1 christos case R_IA64_FPTR32LSB:
2277 1.1 christos case R_IA64_FPTR64MSB:
2278 1.1 christos case R_IA64_FPTR64LSB:
2279 1.1 christos if (bfd_link_pic (info) || h)
2280 1.1 christos need_entry = NEED_FPTR | NEED_DYNREL;
2281 1.1 christos else
2282 1.1 christos need_entry = NEED_FPTR;
2283 1.1 christos break;
2284 1.1 christos
2285 1.1 christos case R_IA64_LTOFF22:
2286 1.1 christos case R_IA64_LTOFF64I:
2287 1.1 christos need_entry = NEED_GOT;
2288 1.1 christos break;
2289 1.1 christos
2290 1.1 christos case R_IA64_LTOFF22X:
2291 1.1 christos need_entry = NEED_GOTX;
2292 1.1 christos break;
2293 1.1 christos
2294 1.1 christos case R_IA64_PLTOFF22:
2295 1.1 christos case R_IA64_PLTOFF64I:
2296 1.1 christos case R_IA64_PLTOFF64MSB:
2297 1.1 christos case R_IA64_PLTOFF64LSB:
2298 1.1 christos need_entry = NEED_PLTOFF;
2299 1.1 christos if (h)
2300 1.1 christos {
2301 1.1 christos if (maybe_dynamic)
2302 1.1 christos need_entry |= NEED_MIN_PLT;
2303 1.1 christos }
2304 1.1 christos else
2305 1.1 christos {
2306 1.1 christos (*info->callbacks->warning)
2307 1.1.1.4 christos (info, _("@pltoff reloc against local symbol"), 0,
2308 1.1 christos abfd, 0, (bfd_vma) 0);
2309 1.1 christos }
2310 1.1 christos break;
2311 1.1 christos
2312 1.1 christos case R_IA64_PCREL21B:
2313 1.1 christos case R_IA64_PCREL60B:
2314 1.1 christos /* Depending on where this symbol is defined, we may or may not
2315 1.1 christos need a full plt entry. Only skip if we know we'll not need
2316 1.1 christos the entry -- static or symbolic, and the symbol definition
2317 1.1 christos has already been seen. */
2318 1.1 christos if (maybe_dynamic && rel->r_addend == 0)
2319 1.1 christos need_entry = NEED_FULL_PLT;
2320 1.1 christos break;
2321 1.1 christos
2322 1.1 christos case R_IA64_IMM14:
2323 1.1 christos case R_IA64_IMM22:
2324 1.1.1.2 christos case R_IA64_IMM64:
2325 1.1 christos case R_IA64_DIR32MSB:
2326 1.1 christos case R_IA64_DIR32LSB:
2327 1.1 christos case R_IA64_DIR64MSB:
2328 1.1 christos case R_IA64_DIR64LSB:
2329 1.1 christos /* Shared objects will always need at least a REL relocation. */
2330 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2331 1.1.1.2 christos need_entry = NEED_DYNREL;
2332 1.1 christos break;
2333 1.1 christos
2334 1.1 christos case R_IA64_IPLTMSB:
2335 1.1 christos case R_IA64_IPLTLSB:
2336 1.1 christos /* Shared objects will always need at least a REL relocation. */
2337 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2338 1.1 christos need_entry = NEED_DYNREL;
2339 1.1 christos break;
2340 1.1 christos
2341 1.1 christos case R_IA64_PCREL22:
2342 1.1 christos case R_IA64_PCREL64I:
2343 1.1 christos case R_IA64_PCREL32MSB:
2344 1.1 christos case R_IA64_PCREL32LSB:
2345 1.1 christos case R_IA64_PCREL64MSB:
2346 1.1 christos case R_IA64_PCREL64LSB:
2347 1.1 christos if (maybe_dynamic)
2348 1.1 christos need_entry = NEED_DYNREL;
2349 1.1 christos break;
2350 1.1 christos }
2351 1.1 christos
2352 1.1 christos if (!need_entry)
2353 1.1 christos continue;
2354 1.1 christos
2355 1.1 christos if ((need_entry & NEED_FPTR) != 0
2356 1.1 christos && rel->r_addend)
2357 1.1 christos {
2358 1.1 christos (*info->callbacks->warning)
2359 1.1 christos (info, _("non-zero addend in @fptr reloc"), 0,
2360 1.1 christos abfd, 0, (bfd_vma) 0);
2361 1.1 christos }
2362 1.1 christos
2363 1.1 christos if (get_dyn_sym_info (ia64_info, h, abfd, rel, TRUE) == NULL)
2364 1.1 christos return FALSE;
2365 1.1 christos }
2366 1.1 christos
2367 1.1 christos /* Now, we only do lookup without insertion, which is very fast
2368 1.1 christos with the modified get_dyn_sym_info. */
2369 1.1 christos for (rel = relocs; rel < relend; ++rel)
2370 1.1 christos {
2371 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
2372 1.1 christos int dynrel_type = R_IA64_NONE;
2373 1.1 christos
2374 1.1 christos r_symndx = ELFNN_R_SYM (rel->r_info);
2375 1.1 christos if (r_symndx >= symtab_hdr->sh_info)
2376 1.1 christos {
2377 1.1 christos /* We're dealing with a global symbol -- find its hash entry
2378 1.1 christos and mark it as being referenced. */
2379 1.1.1.2 christos long indx = r_symndx - symtab_hdr->sh_info;
2380 1.1.1.2 christos h = elf_sym_hashes (abfd)[indx];
2381 1.1 christos while (h->root.type == bfd_link_hash_indirect
2382 1.1 christos || h->root.type == bfd_link_hash_warning)
2383 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
2384 1.1 christos
2385 1.1 christos /* PR15323, ref flags aren't set for references in the same
2386 1.1.1.4 christos object. */
2387 1.1.1.4 christos h->ref_regular = 1;
2388 1.1.1.4 christos }
2389 1.1 christos else
2390 1.1 christos h = NULL;
2391 1.1 christos
2392 1.1 christos if (h && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
2393 1.1.1.2 christos continue;
2394 1.1 christos
2395 1.1 christos /* We can only get preliminary data on whether a symbol is
2396 1.1 christos locally or externally defined, as not all of the input files
2397 1.1 christos have yet been processed. Do something with what we know, as
2398 1.1 christos this may help reduce memory usage and processing time later. */
2399 1.1 christos maybe_dynamic = (h && ((!bfd_link_executable (info)
2400 1.1 christos && (!SYMBOLIC_BIND (info, h)
2401 1.1 christos || info->unresolved_syms_in_shared_libs == RM_IGNORE))
2402 1.1 christos || !h->def_regular
2403 1.1 christos || h->root.type == bfd_link_hash_defweak));
2404 1.1.1.2 christos
2405 1.1 christos need_entry = 0;
2406 1.1 christos switch (ELFNN_R_TYPE (rel->r_info))
2407 1.1.1.2 christos {
2408 1.1 christos case R_IA64_TPREL64MSB:
2409 1.1 christos case R_IA64_TPREL64LSB:
2410 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2411 1.1 christos need_entry = NEED_DYNREL;
2412 1.1 christos dynrel_type = R_IA64_TPREL64LSB;
2413 1.1.1.2 christos if (bfd_link_pic (info))
2414 1.1 christos info->flags |= DF_STATIC_TLS;
2415 1.1 christos break;
2416 1.1 christos
2417 1.1 christos case R_IA64_LTOFF_TPREL22:
2418 1.1 christos need_entry = NEED_TPREL;
2419 1.1 christos if (bfd_link_pic (info))
2420 1.1 christos info->flags |= DF_STATIC_TLS;
2421 1.1.1.2 christos break;
2422 1.1 christos
2423 1.1 christos case R_IA64_DTPREL32MSB:
2424 1.1 christos case R_IA64_DTPREL32LSB:
2425 1.1 christos case R_IA64_DTPREL64MSB:
2426 1.1 christos case R_IA64_DTPREL64LSB:
2427 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2428 1.1 christos need_entry = NEED_DYNREL;
2429 1.1 christos dynrel_type = R_IA64_DTPRELNNLSB;
2430 1.1 christos break;
2431 1.1 christos
2432 1.1.1.2 christos case R_IA64_LTOFF_DTPREL22:
2433 1.1 christos need_entry = NEED_DTPREL;
2434 1.1 christos break;
2435 1.1 christos
2436 1.1 christos case R_IA64_DTPMOD64MSB:
2437 1.1 christos case R_IA64_DTPMOD64LSB:
2438 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2439 1.1 christos need_entry = NEED_DYNREL;
2440 1.1 christos dynrel_type = R_IA64_DTPMOD64LSB;
2441 1.1 christos break;
2442 1.1 christos
2443 1.1 christos case R_IA64_LTOFF_DTPMOD22:
2444 1.1 christos need_entry = NEED_DTPMOD;
2445 1.1 christos break;
2446 1.1 christos
2447 1.1 christos case R_IA64_LTOFF_FPTR22:
2448 1.1 christos case R_IA64_LTOFF_FPTR64I:
2449 1.1 christos case R_IA64_LTOFF_FPTR32MSB:
2450 1.1 christos case R_IA64_LTOFF_FPTR32LSB:
2451 1.1 christos case R_IA64_LTOFF_FPTR64MSB:
2452 1.1 christos case R_IA64_LTOFF_FPTR64LSB:
2453 1.1 christos need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR;
2454 1.1 christos break;
2455 1.1.1.2 christos
2456 1.1 christos case R_IA64_FPTR64I:
2457 1.1 christos case R_IA64_FPTR32MSB:
2458 1.1 christos case R_IA64_FPTR32LSB:
2459 1.1 christos case R_IA64_FPTR64MSB:
2460 1.1 christos case R_IA64_FPTR64LSB:
2461 1.1 christos if (bfd_link_pic (info) || h)
2462 1.1 christos need_entry = NEED_FPTR | NEED_DYNREL;
2463 1.1 christos else
2464 1.1 christos need_entry = NEED_FPTR;
2465 1.1 christos dynrel_type = R_IA64_FPTRNNLSB;
2466 1.1 christos break;
2467 1.1 christos
2468 1.1 christos case R_IA64_LTOFF22:
2469 1.1 christos case R_IA64_LTOFF64I:
2470 1.1 christos need_entry = NEED_GOT;
2471 1.1 christos break;
2472 1.1 christos
2473 1.1 christos case R_IA64_LTOFF22X:
2474 1.1 christos need_entry = NEED_GOTX;
2475 1.1 christos break;
2476 1.1 christos
2477 1.1 christos case R_IA64_PLTOFF22:
2478 1.1 christos case R_IA64_PLTOFF64I:
2479 1.1 christos case R_IA64_PLTOFF64MSB:
2480 1.1 christos case R_IA64_PLTOFF64LSB:
2481 1.1 christos need_entry = NEED_PLTOFF;
2482 1.1 christos if (h)
2483 1.1 christos {
2484 1.1.1.4 christos if (maybe_dynamic)
2485 1.1 christos need_entry |= NEED_MIN_PLT;
2486 1.1 christos }
2487 1.1 christos break;
2488 1.1 christos
2489 1.1 christos case R_IA64_PCREL21B:
2490 1.1 christos case R_IA64_PCREL60B:
2491 1.1 christos /* Depending on where this symbol is defined, we may or may not
2492 1.1 christos need a full plt entry. Only skip if we know we'll not need
2493 1.1 christos the entry -- static or symbolic, and the symbol definition
2494 1.1 christos has already been seen. */
2495 1.1 christos if (maybe_dynamic && rel->r_addend == 0)
2496 1.1 christos need_entry = NEED_FULL_PLT;
2497 1.1 christos break;
2498 1.1 christos
2499 1.1 christos case R_IA64_IMM14:
2500 1.1 christos case R_IA64_IMM22:
2501 1.1.1.2 christos case R_IA64_IMM64:
2502 1.1 christos case R_IA64_DIR32MSB:
2503 1.1 christos case R_IA64_DIR32LSB:
2504 1.1 christos case R_IA64_DIR64MSB:
2505 1.1 christos case R_IA64_DIR64LSB:
2506 1.1 christos /* Shared objects will always need at least a REL relocation. */
2507 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2508 1.1 christos need_entry = NEED_DYNREL;
2509 1.1.1.2 christos dynrel_type = R_IA64_DIRNNLSB;
2510 1.1 christos break;
2511 1.1 christos
2512 1.1 christos case R_IA64_IPLTMSB:
2513 1.1 christos case R_IA64_IPLTLSB:
2514 1.1 christos /* Shared objects will always need at least a REL relocation. */
2515 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2516 1.1 christos need_entry = NEED_DYNREL;
2517 1.1 christos dynrel_type = R_IA64_IPLTLSB;
2518 1.1 christos break;
2519 1.1 christos
2520 1.1 christos case R_IA64_PCREL22:
2521 1.1 christos case R_IA64_PCREL64I:
2522 1.1 christos case R_IA64_PCREL32MSB:
2523 1.1 christos case R_IA64_PCREL32LSB:
2524 1.1 christos case R_IA64_PCREL64MSB:
2525 1.1 christos case R_IA64_PCREL64LSB:
2526 1.1 christos if (maybe_dynamic)
2527 1.1 christos need_entry = NEED_DYNREL;
2528 1.1 christos dynrel_type = R_IA64_PCRELNNLSB;
2529 1.1 christos break;
2530 1.1 christos }
2531 1.1 christos
2532 1.1 christos if (!need_entry)
2533 1.1 christos continue;
2534 1.1 christos
2535 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, abfd, rel, FALSE);
2536 1.1 christos
2537 1.1 christos /* Record whether or not this is a local symbol. */
2538 1.1 christos dyn_i->h = h;
2539 1.1 christos
2540 1.1 christos /* Create what's needed. */
2541 1.1 christos if (need_entry & (NEED_GOT | NEED_GOTX | NEED_TPREL
2542 1.1 christos | NEED_DTPMOD | NEED_DTPREL))
2543 1.1 christos {
2544 1.1 christos if (!got)
2545 1.1 christos {
2546 1.1 christos got = get_got (abfd, info, ia64_info);
2547 1.1 christos if (!got)
2548 1.1 christos return FALSE;
2549 1.1 christos }
2550 1.1 christos if (need_entry & NEED_GOT)
2551 1.1 christos dyn_i->want_got = 1;
2552 1.1 christos if (need_entry & NEED_GOTX)
2553 1.1 christos dyn_i->want_gotx = 1;
2554 1.1 christos if (need_entry & NEED_TPREL)
2555 1.1 christos dyn_i->want_tprel = 1;
2556 1.1 christos if (need_entry & NEED_DTPMOD)
2557 1.1 christos dyn_i->want_dtpmod = 1;
2558 1.1 christos if (need_entry & NEED_DTPREL)
2559 1.1 christos dyn_i->want_dtprel = 1;
2560 1.1 christos }
2561 1.1 christos if (need_entry & NEED_FPTR)
2562 1.1 christos {
2563 1.1 christos if (!fptr)
2564 1.1 christos {
2565 1.1 christos fptr = get_fptr (abfd, info, ia64_info);
2566 1.1 christos if (!fptr)
2567 1.1.1.2 christos return FALSE;
2568 1.1 christos }
2569 1.1 christos
2570 1.1 christos /* FPTRs for shared libraries are allocated by the dynamic
2571 1.1 christos linker. Make sure this local symbol will appear in the
2572 1.1 christos dynamic symbol table. */
2573 1.1 christos if (!h && bfd_link_pic (info))
2574 1.1 christos {
2575 1.1 christos if (! (bfd_elf_link_record_local_dynamic_symbol
2576 1.1 christos (info, abfd, (long) r_symndx)))
2577 1.1 christos return FALSE;
2578 1.1 christos }
2579 1.1 christos
2580 1.1.1.4 christos dyn_i->want_fptr = 1;
2581 1.1 christos }
2582 1.1 christos if (need_entry & NEED_LTOFF_FPTR)
2583 1.1 christos dyn_i->want_ltoff_fptr = 1;
2584 1.1 christos if (need_entry & (NEED_MIN_PLT | NEED_FULL_PLT))
2585 1.1 christos {
2586 1.1 christos if (!ia64_info->root.dynobj)
2587 1.1 christos ia64_info->root.dynobj = abfd;
2588 1.1 christos h->needs_plt = 1;
2589 1.1 christos dyn_i->want_plt = 1;
2590 1.1 christos }
2591 1.1 christos if (need_entry & NEED_FULL_PLT)
2592 1.1 christos dyn_i->want_plt2 = 1;
2593 1.1 christos if (need_entry & NEED_PLTOFF)
2594 1.1 christos {
2595 1.1 christos /* This is needed here, in case @pltoff is used in a non-shared
2596 1.1 christos link. */
2597 1.1 christos if (!pltoff)
2598 1.1 christos {
2599 1.1 christos pltoff = get_pltoff (abfd, info, ia64_info);
2600 1.1 christos if (!pltoff)
2601 1.1 christos return FALSE;
2602 1.1 christos }
2603 1.1 christos
2604 1.1 christos dyn_i->want_pltoff = 1;
2605 1.1 christos }
2606 1.1 christos if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC))
2607 1.1 christos {
2608 1.1 christos if (!srel)
2609 1.1 christos {
2610 1.1 christos srel = get_reloc_section (abfd, ia64_info, sec, TRUE);
2611 1.1 christos if (!srel)
2612 1.1 christos return FALSE;
2613 1.1 christos }
2614 1.1 christos if (!count_dyn_reloc (abfd, dyn_i, srel, dynrel_type,
2615 1.1 christos (sec->flags & SEC_READONLY) != 0))
2616 1.1 christos return FALSE;
2617 1.1 christos }
2618 1.1 christos }
2619 1.1 christos
2620 1.1 christos return TRUE;
2621 1.1 christos }
2622 1.1 christos
2623 1.1 christos /* For cleanliness, and potentially faster dynamic loading, allocate
2624 1.1 christos external GOT entries first. */
2625 1.1 christos
2626 1.1 christos static bfd_boolean
2627 1.1 christos allocate_global_data_got (struct elfNN_ia64_dyn_sym_info *dyn_i,
2628 1.1 christos void * data)
2629 1.1 christos {
2630 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2631 1.1 christos
2632 1.1 christos if ((dyn_i->want_got || dyn_i->want_gotx)
2633 1.1 christos && ! dyn_i->want_fptr
2634 1.1 christos && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2635 1.1 christos {
2636 1.1 christos dyn_i->got_offset = x->ofs;
2637 1.1 christos x->ofs += 8;
2638 1.1 christos }
2639 1.1 christos if (dyn_i->want_tprel)
2640 1.1 christos {
2641 1.1 christos dyn_i->tprel_offset = x->ofs;
2642 1.1 christos x->ofs += 8;
2643 1.1 christos }
2644 1.1 christos if (dyn_i->want_dtpmod)
2645 1.1 christos {
2646 1.1 christos if (elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2647 1.1 christos {
2648 1.1 christos dyn_i->dtpmod_offset = x->ofs;
2649 1.1 christos x->ofs += 8;
2650 1.1 christos }
2651 1.1 christos else
2652 1.1 christos {
2653 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
2654 1.1 christos
2655 1.1 christos ia64_info = elfNN_ia64_hash_table (x->info);
2656 1.1 christos if (ia64_info == NULL)
2657 1.1 christos return FALSE;
2658 1.1 christos
2659 1.1 christos if (ia64_info->self_dtpmod_offset == (bfd_vma) -1)
2660 1.1 christos {
2661 1.1 christos ia64_info->self_dtpmod_offset = x->ofs;
2662 1.1 christos x->ofs += 8;
2663 1.1 christos }
2664 1.1 christos dyn_i->dtpmod_offset = ia64_info->self_dtpmod_offset;
2665 1.1 christos }
2666 1.1 christos }
2667 1.1 christos if (dyn_i->want_dtprel)
2668 1.1 christos {
2669 1.1 christos dyn_i->dtprel_offset = x->ofs;
2670 1.1 christos x->ofs += 8;
2671 1.1 christos }
2672 1.1 christos return TRUE;
2673 1.1 christos }
2674 1.1 christos
2675 1.1 christos /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2676 1.1 christos
2677 1.1 christos static bfd_boolean
2678 1.1 christos allocate_global_fptr_got (struct elfNN_ia64_dyn_sym_info *dyn_i,
2679 1.1 christos void * data)
2680 1.1 christos {
2681 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2682 1.1 christos
2683 1.1 christos if (dyn_i->want_got
2684 1.1 christos && dyn_i->want_fptr
2685 1.1 christos && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, R_IA64_FPTRNNLSB))
2686 1.1 christos {
2687 1.1 christos dyn_i->got_offset = x->ofs;
2688 1.1 christos x->ofs += 8;
2689 1.1 christos }
2690 1.1 christos return TRUE;
2691 1.1 christos }
2692 1.1 christos
2693 1.1 christos /* Lastly, allocate all the GOT entries for local data. */
2694 1.1 christos
2695 1.1 christos static bfd_boolean
2696 1.1 christos allocate_local_got (struct elfNN_ia64_dyn_sym_info *dyn_i,
2697 1.1 christos void * data)
2698 1.1 christos {
2699 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2700 1.1 christos
2701 1.1 christos if ((dyn_i->want_got || dyn_i->want_gotx)
2702 1.1 christos && !elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2703 1.1 christos {
2704 1.1 christos dyn_i->got_offset = x->ofs;
2705 1.1 christos x->ofs += 8;
2706 1.1 christos }
2707 1.1 christos return TRUE;
2708 1.1 christos }
2709 1.1 christos
2710 1.1 christos /* Search for the index of a global symbol in it's defining object file. */
2711 1.1 christos
2712 1.1 christos static long
2713 1.1 christos global_sym_index (struct elf_link_hash_entry *h)
2714 1.1 christos {
2715 1.1 christos struct elf_link_hash_entry **p;
2716 1.1 christos bfd *obj;
2717 1.1 christos
2718 1.1 christos BFD_ASSERT (h->root.type == bfd_link_hash_defined
2719 1.1 christos || h->root.type == bfd_link_hash_defweak);
2720 1.1 christos
2721 1.1 christos obj = h->root.u.def.section->owner;
2722 1.1 christos for (p = elf_sym_hashes (obj); *p != h; ++p)
2723 1.1 christos continue;
2724 1.1 christos
2725 1.1 christos return p - elf_sym_hashes (obj) + elf_tdata (obj)->symtab_hdr.sh_info;
2726 1.1 christos }
2727 1.1 christos
2728 1.1 christos /* Allocate function descriptors. We can do these for every function
2729 1.1 christos in a main executable that is not exported. */
2730 1.1 christos
2731 1.1 christos static bfd_boolean
2732 1.1 christos allocate_fptr (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data)
2733 1.1 christos {
2734 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2735 1.1 christos
2736 1.1 christos if (dyn_i->want_fptr)
2737 1.1 christos {
2738 1.1 christos struct elf_link_hash_entry *h = dyn_i->h;
2739 1.1.1.2 christos
2740 1.1 christos if (h)
2741 1.1.1.4 christos while (h->root.type == bfd_link_hash_indirect
2742 1.1.1.4 christos || h->root.type == bfd_link_hash_warning)
2743 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
2744 1.1 christos
2745 1.1 christos if (!bfd_link_executable (x->info)
2746 1.1 christos && (!h
2747 1.1 christos || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2748 1.1 christos && !UNDEFWEAK_NO_DYNAMIC_RELOC (x->info, h))
2749 1.1 christos || (h->root.type != bfd_link_hash_undefweak
2750 1.1 christos && h->root.type != bfd_link_hash_undefined)))
2751 1.1 christos {
2752 1.1 christos if (h && h->dynindx == -1)
2753 1.1 christos {
2754 1.1 christos BFD_ASSERT ((h->root.type == bfd_link_hash_defined)
2755 1.1 christos || (h->root.type == bfd_link_hash_defweak));
2756 1.1 christos
2757 1.1 christos if (!bfd_elf_link_record_local_dynamic_symbol
2758 1.1 christos (x->info, h->root.u.def.section->owner,
2759 1.1 christos global_sym_index (h)))
2760 1.1 christos return FALSE;
2761 1.1 christos }
2762 1.1 christos
2763 1.1 christos dyn_i->want_fptr = 0;
2764 1.1 christos }
2765 1.1 christos else if (h == NULL || h->dynindx == -1)
2766 1.1 christos {
2767 1.1 christos dyn_i->fptr_offset = x->ofs;
2768 1.1 christos x->ofs += 16;
2769 1.1 christos }
2770 1.1 christos else
2771 1.1 christos dyn_i->want_fptr = 0;
2772 1.1 christos }
2773 1.1 christos return TRUE;
2774 1.1 christos }
2775 1.1 christos
2776 1.1 christos /* Allocate all the minimal PLT entries. */
2777 1.1 christos
2778 1.1 christos static bfd_boolean
2779 1.1 christos allocate_plt_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2780 1.1 christos void * data)
2781 1.1 christos {
2782 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2783 1.1 christos
2784 1.1 christos if (dyn_i->want_plt)
2785 1.1 christos {
2786 1.1 christos struct elf_link_hash_entry *h = dyn_i->h;
2787 1.1 christos
2788 1.1 christos if (h)
2789 1.1 christos while (h->root.type == bfd_link_hash_indirect
2790 1.1 christos || h->root.type == bfd_link_hash_warning)
2791 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
2792 1.1 christos
2793 1.1 christos /* ??? Versioned symbols seem to lose NEEDS_PLT. */
2794 1.1 christos if (elfNN_ia64_dynamic_symbol_p (h, x->info, 0))
2795 1.1 christos {
2796 1.1 christos bfd_size_type offset = x->ofs;
2797 1.1 christos if (offset == 0)
2798 1.1 christos offset = PLT_HEADER_SIZE;
2799 1.1 christos dyn_i->plt_offset = offset;
2800 1.1 christos x->ofs = offset + PLT_MIN_ENTRY_SIZE;
2801 1.1 christos
2802 1.1 christos dyn_i->want_pltoff = 1;
2803 1.1 christos }
2804 1.1 christos else
2805 1.1 christos {
2806 1.1 christos dyn_i->want_plt = 0;
2807 1.1 christos dyn_i->want_plt2 = 0;
2808 1.1 christos }
2809 1.1 christos }
2810 1.1 christos return TRUE;
2811 1.1 christos }
2812 1.1 christos
2813 1.1 christos /* Allocate all the full PLT entries. */
2814 1.1 christos
2815 1.1 christos static bfd_boolean
2816 1.1 christos allocate_plt2_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2817 1.1 christos void * data)
2818 1.1 christos {
2819 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2820 1.1 christos
2821 1.1 christos if (dyn_i->want_plt2)
2822 1.1 christos {
2823 1.1 christos struct elf_link_hash_entry *h = dyn_i->h;
2824 1.1 christos bfd_size_type ofs = x->ofs;
2825 1.1 christos
2826 1.1 christos dyn_i->plt2_offset = ofs;
2827 1.1 christos x->ofs = ofs + PLT_FULL_ENTRY_SIZE;
2828 1.1 christos
2829 1.1 christos while (h->root.type == bfd_link_hash_indirect
2830 1.1 christos || h->root.type == bfd_link_hash_warning)
2831 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
2832 1.1 christos dyn_i->h->plt.offset = ofs;
2833 1.1 christos }
2834 1.1 christos return TRUE;
2835 1.1 christos }
2836 1.1 christos
2837 1.1 christos /* Allocate all the PLTOFF entries requested by relocations and
2838 1.1 christos plt entries. We can't share space with allocated FPTR entries,
2839 1.1 christos because the latter are not necessarily addressable by the GP.
2840 1.1 christos ??? Relaxation might be able to determine that they are. */
2841 1.1 christos
2842 1.1 christos static bfd_boolean
2843 1.1 christos allocate_pltoff_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2844 1.1 christos void * data)
2845 1.1 christos {
2846 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2847 1.1 christos
2848 1.1 christos if (dyn_i->want_pltoff)
2849 1.1 christos {
2850 1.1 christos dyn_i->pltoff_offset = x->ofs;
2851 1.1 christos x->ofs += 16;
2852 1.1 christos }
2853 1.1 christos return TRUE;
2854 1.1 christos }
2855 1.1 christos
2856 1.1 christos /* Allocate dynamic relocations for those symbols that turned out
2857 1.1 christos to be dynamic. */
2858 1.1 christos
2859 1.1 christos static bfd_boolean
2860 1.1 christos allocate_dynrel_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2861 1.1 christos void * data)
2862 1.1 christos {
2863 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2864 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
2865 1.1 christos struct elfNN_ia64_dyn_reloc_entry *rent;
2866 1.1 christos bfd_boolean dynamic_symbol, shared, resolved_zero;
2867 1.1 christos
2868 1.1 christos ia64_info = elfNN_ia64_hash_table (x->info);
2869 1.1.1.2 christos if (ia64_info == NULL)
2870 1.1 christos return FALSE;
2871 1.1.1.4 christos
2872 1.1.1.4 christos /* Note that this can't be used in relation to FPTR relocs below. */
2873 1.1 christos dynamic_symbol = elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0);
2874 1.1 christos
2875 1.1 christos shared = bfd_link_pic (x->info);
2876 1.1 christos resolved_zero = (dyn_i->h
2877 1.1 christos && UNDEFWEAK_NO_DYNAMIC_RELOC (x->info,
2878 1.1 christos dyn_i->h));
2879 1.1 christos
2880 1.1 christos /* Take care of the GOT and PLT relocations. */
2881 1.1 christos
2882 1.1 christos if ((!resolved_zero
2883 1.1 christos && (dynamic_symbol || shared)
2884 1.1.1.2 christos && (dyn_i->want_got || dyn_i->want_gotx))
2885 1.1 christos || (dyn_i->want_ltoff_fptr
2886 1.1 christos && dyn_i->h
2887 1.1 christos && dyn_i->h->dynindx != -1))
2888 1.1 christos {
2889 1.1 christos if (!dyn_i->want_ltoff_fptr
2890 1.1 christos || !bfd_link_pie (x->info)
2891 1.1 christos || dyn_i->h == NULL
2892 1.1 christos || dyn_i->h->root.type != bfd_link_hash_undefweak)
2893 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2894 1.1 christos }
2895 1.1 christos if ((dynamic_symbol || shared) && dyn_i->want_tprel)
2896 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2897 1.1 christos if (dynamic_symbol && dyn_i->want_dtpmod)
2898 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2899 1.1 christos if (dynamic_symbol && dyn_i->want_dtprel)
2900 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2901 1.1 christos
2902 1.1 christos if (x->only_got)
2903 1.1 christos return TRUE;
2904 1.1 christos
2905 1.1 christos if (ia64_info->rel_fptr_sec && dyn_i->want_fptr)
2906 1.1 christos {
2907 1.1 christos if (dyn_i->h == NULL || dyn_i->h->root.type != bfd_link_hash_undefweak)
2908 1.1 christos ia64_info->rel_fptr_sec->size += sizeof (ElfNN_External_Rela);
2909 1.1 christos }
2910 1.1 christos
2911 1.1 christos if (!resolved_zero && dyn_i->want_pltoff)
2912 1.1 christos {
2913 1.1 christos bfd_size_type t = 0;
2914 1.1 christos
2915 1.1 christos /* Dynamic symbols get one IPLT relocation. Local symbols in
2916 1.1 christos shared libraries get two REL relocations. Local symbols in
2917 1.1 christos main applications get nothing. */
2918 1.1 christos if (dynamic_symbol)
2919 1.1 christos t = sizeof (ElfNN_External_Rela);
2920 1.1 christos else if (shared)
2921 1.1 christos t = 2 * sizeof (ElfNN_External_Rela);
2922 1.1 christos
2923 1.1 christos ia64_info->rel_pltoff_sec->size += t;
2924 1.1 christos }
2925 1.1 christos
2926 1.1 christos /* Take care of the normal data relocations. */
2927 1.1 christos
2928 1.1 christos for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
2929 1.1 christos {
2930 1.1 christos int count = rent->count;
2931 1.1 christos
2932 1.1 christos switch (rent->type)
2933 1.1 christos {
2934 1.1.1.2 christos case R_IA64_FPTR32LSB:
2935 1.1 christos case R_IA64_FPTR64LSB:
2936 1.1 christos /* Allocate one iff !want_fptr and not PIE, which by this point
2937 1.1 christos will be true only if we're actually allocating one statically
2938 1.1 christos in the main executable. Position independent executables
2939 1.1 christos need a relative reloc. */
2940 1.1 christos if (dyn_i->want_fptr && !bfd_link_pie (x->info))
2941 1.1 christos continue;
2942 1.1 christos break;
2943 1.1 christos case R_IA64_PCREL32LSB:
2944 1.1 christos case R_IA64_PCREL64LSB:
2945 1.1 christos if (!dynamic_symbol)
2946 1.1 christos continue;
2947 1.1 christos break;
2948 1.1 christos case R_IA64_DIR32LSB:
2949 1.1 christos case R_IA64_DIR64LSB:
2950 1.1 christos if (!dynamic_symbol && !shared)
2951 1.1 christos continue;
2952 1.1 christos break;
2953 1.1 christos case R_IA64_IPLTLSB:
2954 1.1 christos if (!dynamic_symbol && !shared)
2955 1.1 christos continue;
2956 1.1 christos /* Use two REL relocations for IPLT relocations
2957 1.1 christos against local symbols. */
2958 1.1 christos if (!dynamic_symbol)
2959 1.1 christos count *= 2;
2960 1.1 christos break;
2961 1.1 christos case R_IA64_DTPREL32LSB:
2962 1.1 christos case R_IA64_TPREL64LSB:
2963 1.1 christos case R_IA64_DTPREL64LSB:
2964 1.1 christos case R_IA64_DTPMOD64LSB:
2965 1.1 christos break;
2966 1.1 christos default:
2967 1.1 christos abort ();
2968 1.1 christos }
2969 1.1 christos if (rent->reltext)
2970 1.1 christos ia64_info->reltext = 1;
2971 1.1 christos rent->srel->size += sizeof (ElfNN_External_Rela) * count;
2972 1.1 christos }
2973 1.1 christos
2974 1.1 christos return TRUE;
2975 1.1 christos }
2976 1.1 christos
2977 1.1 christos static bfd_boolean
2978 1.1 christos elfNN_ia64_adjust_dynamic_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED,
2979 1.1 christos struct elf_link_hash_entry *h)
2980 1.1 christos {
2981 1.1.1.4 christos /* ??? Undefined symbols with PLT entries should be re-defined
2982 1.1 christos to be the PLT entry. */
2983 1.1.1.4 christos
2984 1.1.1.4 christos /* If this is a weak symbol, and there is a real definition, the
2985 1.1.1.4 christos processor independent code will have arranged for us to see the
2986 1.1.1.4 christos real definition first, and we can just use the same value. */
2987 1.1 christos if (h->is_weakalias)
2988 1.1 christos {
2989 1.1 christos struct elf_link_hash_entry *def = weakdef (h);
2990 1.1 christos BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2991 1.1 christos h->root.u.def.section = def->root.u.def.section;
2992 1.1 christos h->root.u.def.value = def->root.u.def.value;
2993 1.1 christos return TRUE;
2994 1.1 christos }
2995 1.1 christos
2996 1.1 christos /* If this is a reference to a symbol defined by a dynamic object which
2997 1.1 christos is not a function, we might allocate the symbol in our .dynbss section
2998 1.1 christos and allocate a COPY dynamic relocation.
2999 1.1 christos
3000 1.1 christos But IA-64 code is canonically PIC, so as a rule we can avoid this sort
3001 1.1 christos of hackery. */
3002 1.1 christos
3003 1.1 christos return TRUE;
3004 1.1 christos }
3005 1.1 christos
3006 1.1 christos static bfd_boolean
3007 1.1 christos elfNN_ia64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3008 1.1 christos struct bfd_link_info *info)
3009 1.1 christos {
3010 1.1 christos struct elfNN_ia64_allocate_data data;
3011 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3012 1.1 christos asection *sec;
3013 1.1.1.4 christos bfd *dynobj;
3014 1.1 christos bfd_boolean relplt = FALSE;
3015 1.1 christos
3016 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3017 1.1 christos if (ia64_info == NULL)
3018 1.1 christos return FALSE;
3019 1.1 christos dynobj = ia64_info->root.dynobj;
3020 1.1.1.2 christos ia64_info->self_dtpmod_offset = (bfd_vma) -1;
3021 1.1 christos BFD_ASSERT(dynobj != NULL);
3022 1.1 christos data.info = info;
3023 1.1 christos
3024 1.1 christos /* Set the contents of the .interp section to the interpreter. */
3025 1.1 christos if (ia64_info->root.dynamic_sections_created
3026 1.1 christos && bfd_link_executable (info) && !info->nointerp)
3027 1.1 christos {
3028 1.1 christos sec = bfd_get_linker_section (dynobj, ".interp");
3029 1.1 christos BFD_ASSERT (sec != NULL);
3030 1.1 christos sec->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
3031 1.1 christos sec->size = strlen (ELF_DYNAMIC_INTERPRETER) + 1;
3032 1.1 christos }
3033 1.1 christos
3034 1.1 christos /* Allocate the GOT entries. */
3035 1.1 christos
3036 1.1 christos if (ia64_info->root.sgot)
3037 1.1 christos {
3038 1.1 christos data.ofs = 0;
3039 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
3040 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
3041 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
3042 1.1 christos ia64_info->root.sgot->size = data.ofs;
3043 1.1 christos }
3044 1.1 christos
3045 1.1 christos /* Allocate the FPTR entries. */
3046 1.1 christos
3047 1.1 christos if (ia64_info->fptr_sec)
3048 1.1 christos {
3049 1.1 christos data.ofs = 0;
3050 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_fptr, &data);
3051 1.1 christos ia64_info->fptr_sec->size = data.ofs;
3052 1.1 christos }
3053 1.1 christos
3054 1.1 christos /* Now that we've seen all of the input files, we can decide which
3055 1.1 christos symbols need plt entries. Allocate the minimal PLT entries first.
3056 1.1 christos We do this even though dynamic_sections_created may be FALSE, because
3057 1.1 christos this has the side-effect of clearing want_plt and want_plt2. */
3058 1.1 christos
3059 1.1 christos data.ofs = 0;
3060 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt_entries, &data);
3061 1.1 christos
3062 1.1 christos ia64_info->minplt_entries = 0;
3063 1.1 christos if (data.ofs)
3064 1.1 christos {
3065 1.1 christos ia64_info->minplt_entries
3066 1.1 christos = (data.ofs - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
3067 1.1 christos }
3068 1.1 christos
3069 1.1 christos /* Align the pointer for the plt2 entries. */
3070 1.1 christos data.ofs = (data.ofs + 31) & (bfd_vma) -32;
3071 1.1 christos
3072 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt2_entries, &data);
3073 1.1 christos if (data.ofs != 0 || ia64_info->root.dynamic_sections_created)
3074 1.1 christos {
3075 1.1 christos /* FIXME: we always reserve the memory for dynamic linker even if
3076 1.1 christos there are no PLT entries since dynamic linker may assume the
3077 1.1 christos reserved memory always exists. */
3078 1.1 christos
3079 1.1.1.4 christos BFD_ASSERT (ia64_info->root.dynamic_sections_created);
3080 1.1 christos
3081 1.1 christos ia64_info->root.splt->size = data.ofs;
3082 1.1 christos
3083 1.1 christos /* If we've got a .plt, we need some extra memory for the dynamic
3084 1.1 christos linker. We stuff these in .got.plt. */
3085 1.1 christos ia64_info->root.sgotplt->size = 8 * PLT_RESERVED_WORDS;
3086 1.1 christos }
3087 1.1 christos
3088 1.1 christos /* Allocate the PLTOFF entries. */
3089 1.1 christos
3090 1.1 christos if (ia64_info->pltoff_sec)
3091 1.1 christos {
3092 1.1 christos data.ofs = 0;
3093 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_pltoff_entries, &data);
3094 1.1 christos ia64_info->pltoff_sec->size = data.ofs;
3095 1.1 christos }
3096 1.1.1.2 christos
3097 1.1 christos if (ia64_info->root.dynamic_sections_created)
3098 1.1 christos {
3099 1.1 christos /* Allocate space for the dynamic relocations that turned out to be
3100 1.1 christos required. */
3101 1.1 christos
3102 1.1 christos if (bfd_link_pic (info) && ia64_info->self_dtpmod_offset != (bfd_vma) -1)
3103 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
3104 1.1 christos data.only_got = FALSE;
3105 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries, &data);
3106 1.1 christos }
3107 1.1 christos
3108 1.1 christos /* We have now determined the sizes of the various dynamic sections.
3109 1.1 christos Allocate memory for them. */
3110 1.1 christos for (sec = dynobj->sections; sec != NULL; sec = sec->next)
3111 1.1 christos {
3112 1.1 christos bfd_boolean strip;
3113 1.1 christos
3114 1.1 christos if (!(sec->flags & SEC_LINKER_CREATED))
3115 1.1 christos continue;
3116 1.1 christos
3117 1.1 christos /* If we don't need this section, strip it from the output file.
3118 1.1 christos There were several sections primarily related to dynamic
3119 1.1 christos linking that must be create before the linker maps input
3120 1.1 christos sections to output sections. The linker does that before
3121 1.1 christos bfd_elf_size_dynamic_sections is called, and it is that
3122 1.1 christos function which decides whether anything needs to go into
3123 1.1 christos these sections. */
3124 1.1 christos
3125 1.1 christos strip = (sec->size == 0);
3126 1.1 christos
3127 1.1 christos if (sec == ia64_info->root.sgot)
3128 1.1 christos strip = FALSE;
3129 1.1 christos else if (sec == ia64_info->root.srelgot)
3130 1.1 christos {
3131 1.1 christos if (strip)
3132 1.1 christos ia64_info->root.srelgot = NULL;
3133 1.1 christos else
3134 1.1 christos /* We use the reloc_count field as a counter if we need to
3135 1.1 christos copy relocs into the output file. */
3136 1.1 christos sec->reloc_count = 0;
3137 1.1 christos }
3138 1.1 christos else if (sec == ia64_info->fptr_sec)
3139 1.1 christos {
3140 1.1 christos if (strip)
3141 1.1 christos ia64_info->fptr_sec = NULL;
3142 1.1 christos }
3143 1.1 christos else if (sec == ia64_info->rel_fptr_sec)
3144 1.1 christos {
3145 1.1 christos if (strip)
3146 1.1 christos ia64_info->rel_fptr_sec = NULL;
3147 1.1 christos else
3148 1.1 christos /* We use the reloc_count field as a counter if we need to
3149 1.1 christos copy relocs into the output file. */
3150 1.1 christos sec->reloc_count = 0;
3151 1.1 christos }
3152 1.1 christos else if (sec == ia64_info->root.splt)
3153 1.1 christos {
3154 1.1 christos if (strip)
3155 1.1 christos ia64_info->root.splt = NULL;
3156 1.1 christos }
3157 1.1 christos else if (sec == ia64_info->pltoff_sec)
3158 1.1 christos {
3159 1.1 christos if (strip)
3160 1.1 christos ia64_info->pltoff_sec = NULL;
3161 1.1 christos }
3162 1.1 christos else if (sec == ia64_info->rel_pltoff_sec)
3163 1.1 christos {
3164 1.1 christos if (strip)
3165 1.1 christos ia64_info->rel_pltoff_sec = NULL;
3166 1.1 christos else
3167 1.1 christos {
3168 1.1 christos relplt = TRUE;
3169 1.1 christos /* We use the reloc_count field as a counter if we need to
3170 1.1 christos copy relocs into the output file. */
3171 1.1 christos sec->reloc_count = 0;
3172 1.1 christos }
3173 1.1 christos }
3174 1.1.1.6 christos else
3175 1.1 christos {
3176 1.1 christos const char *name;
3177 1.1 christos
3178 1.1 christos /* It's OK to base decisions on the section name, because none
3179 1.1 christos of the dynobj section names depend upon the input files. */
3180 1.1 christos name = bfd_section_name (sec);
3181 1.1 christos
3182 1.1 christos if (strcmp (name, ".got.plt") == 0)
3183 1.1 christos strip = FALSE;
3184 1.1 christos else if (CONST_STRNEQ (name, ".rel"))
3185 1.1 christos {
3186 1.1 christos if (!strip)
3187 1.1 christos {
3188 1.1 christos /* We use the reloc_count field as a counter if we need to
3189 1.1 christos copy relocs into the output file. */
3190 1.1 christos sec->reloc_count = 0;
3191 1.1 christos }
3192 1.1 christos }
3193 1.1 christos else
3194 1.1 christos continue;
3195 1.1 christos }
3196 1.1 christos
3197 1.1 christos if (strip)
3198 1.1 christos sec->flags |= SEC_EXCLUDE;
3199 1.1 christos else
3200 1.1 christos {
3201 1.1 christos /* Allocate memory for the section contents. */
3202 1.1.1.4 christos sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->size);
3203 1.1 christos if (sec->contents == NULL && sec->size != 0)
3204 1.1 christos return FALSE;
3205 1.1 christos }
3206 1.1 christos }
3207 1.1 christos
3208 1.1.1.2 christos if (ia64_info->root.dynamic_sections_created)
3209 1.1 christos {
3210 1.1 christos /* Add some entries to the .dynamic section. We fill in the values
3211 1.1 christos later (in finish_dynamic_sections) but we must add the entries now
3212 1.1 christos so that we get the correct size for the .dynamic section. */
3213 1.1 christos
3214 1.1 christos if (bfd_link_executable (info))
3215 1.1 christos {
3216 1.1 christos /* The DT_DEBUG entry is filled in by the dynamic linker and used
3217 1.1 christos by the debugger. */
3218 1.1 christos #define add_dynamic_entry(TAG, VAL) \
3219 1.1 christos _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3220 1.1 christos
3221 1.1 christos if (!add_dynamic_entry (DT_DEBUG, 0))
3222 1.1 christos return FALSE;
3223 1.1 christos }
3224 1.1 christos
3225 1.1 christos if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE, 0))
3226 1.1 christos return FALSE;
3227 1.1 christos if (!add_dynamic_entry (DT_PLTGOT, 0))
3228 1.1 christos return FALSE;
3229 1.1 christos
3230 1.1 christos if (relplt)
3231 1.1 christos {
3232 1.1 christos if (!add_dynamic_entry (DT_PLTRELSZ, 0)
3233 1.1 christos || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3234 1.1 christos || !add_dynamic_entry (DT_JMPREL, 0))
3235 1.1 christos return FALSE;
3236 1.1 christos }
3237 1.1 christos
3238 1.1 christos if (!add_dynamic_entry (DT_RELA, 0)
3239 1.1 christos || !add_dynamic_entry (DT_RELASZ, 0)
3240 1.1 christos || !add_dynamic_entry (DT_RELAENT, sizeof (ElfNN_External_Rela)))
3241 1.1 christos return FALSE;
3242 1.1 christos
3243 1.1 christos if (ia64_info->reltext)
3244 1.1 christos {
3245 1.1 christos if (!add_dynamic_entry (DT_TEXTREL, 0))
3246 1.1 christos return FALSE;
3247 1.1 christos info->flags |= DF_TEXTREL;
3248 1.1 christos }
3249 1.1 christos }
3250 1.1 christos
3251 1.1 christos /* ??? Perhaps force __gp local. */
3252 1.1 christos
3253 1.1 christos return TRUE;
3254 1.1 christos }
3255 1.1 christos
3256 1.1 christos static void
3257 1.1 christos elfNN_ia64_install_dyn_reloc (bfd *abfd, struct bfd_link_info *info,
3258 1.1 christos asection *sec, asection *srel,
3259 1.1 christos bfd_vma offset, unsigned int type,
3260 1.1 christos long dynindx, bfd_vma addend)
3261 1.1 christos {
3262 1.1 christos Elf_Internal_Rela outrel;
3263 1.1 christos bfd_byte *loc;
3264 1.1 christos
3265 1.1 christos BFD_ASSERT (dynindx != -1);
3266 1.1 christos outrel.r_info = ELFNN_R_INFO (dynindx, type);
3267 1.1 christos outrel.r_addend = addend;
3268 1.1 christos outrel.r_offset = _bfd_elf_section_offset (abfd, info, sec, offset);
3269 1.1 christos if (outrel.r_offset >= (bfd_vma) -2)
3270 1.1 christos {
3271 1.1 christos /* Run for the hills. We shouldn't be outputting a relocation
3272 1.1 christos for this. So do what everyone else does and output a no-op. */
3273 1.1 christos outrel.r_info = ELFNN_R_INFO (0, R_IA64_NONE);
3274 1.1 christos outrel.r_addend = 0;
3275 1.1 christos outrel.r_offset = 0;
3276 1.1 christos }
3277 1.1 christos else
3278 1.1 christos outrel.r_offset += sec->output_section->vma + sec->output_offset;
3279 1.1 christos
3280 1.1 christos loc = srel->contents;
3281 1.1 christos loc += srel->reloc_count++ * sizeof (ElfNN_External_Rela);
3282 1.1 christos bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
3283 1.1 christos BFD_ASSERT (sizeof (ElfNN_External_Rela) * srel->reloc_count <= srel->size);
3284 1.1 christos }
3285 1.1 christos
3286 1.1 christos /* Store an entry for target address TARGET_ADDR in the linkage table
3287 1.1 christos and return the gp-relative address of the linkage table entry. */
3288 1.1 christos
3289 1.1 christos static bfd_vma
3290 1.1 christos set_got_entry (bfd *abfd, struct bfd_link_info *info,
3291 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i,
3292 1.1 christos long dynindx, bfd_vma addend, bfd_vma value,
3293 1.1 christos unsigned int dyn_r_type)
3294 1.1 christos {
3295 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3296 1.1 christos asection *got_sec;
3297 1.1 christos bfd_boolean done;
3298 1.1 christos bfd_vma got_offset;
3299 1.1 christos
3300 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3301 1.1 christos if (ia64_info == NULL)
3302 1.1 christos return 0;
3303 1.1 christos
3304 1.1 christos got_sec = ia64_info->root.sgot;
3305 1.1 christos
3306 1.1 christos switch (dyn_r_type)
3307 1.1 christos {
3308 1.1 christos case R_IA64_TPREL64LSB:
3309 1.1 christos done = dyn_i->tprel_done;
3310 1.1 christos dyn_i->tprel_done = TRUE;
3311 1.1 christos got_offset = dyn_i->tprel_offset;
3312 1.1 christos break;
3313 1.1 christos case R_IA64_DTPMOD64LSB:
3314 1.1 christos if (dyn_i->dtpmod_offset != ia64_info->self_dtpmod_offset)
3315 1.1 christos {
3316 1.1 christos done = dyn_i->dtpmod_done;
3317 1.1 christos dyn_i->dtpmod_done = TRUE;
3318 1.1 christos }
3319 1.1 christos else
3320 1.1 christos {
3321 1.1 christos done = ia64_info->self_dtpmod_done;
3322 1.1 christos ia64_info->self_dtpmod_done = TRUE;
3323 1.1 christos dynindx = 0;
3324 1.1 christos }
3325 1.1 christos got_offset = dyn_i->dtpmod_offset;
3326 1.1 christos break;
3327 1.1 christos case R_IA64_DTPREL32LSB:
3328 1.1 christos case R_IA64_DTPREL64LSB:
3329 1.1 christos done = dyn_i->dtprel_done;
3330 1.1 christos dyn_i->dtprel_done = TRUE;
3331 1.1 christos got_offset = dyn_i->dtprel_offset;
3332 1.1 christos break;
3333 1.1 christos default:
3334 1.1 christos done = dyn_i->got_done;
3335 1.1 christos dyn_i->got_done = TRUE;
3336 1.1 christos got_offset = dyn_i->got_offset;
3337 1.1 christos break;
3338 1.1 christos }
3339 1.1 christos
3340 1.1 christos BFD_ASSERT ((got_offset & 7) == 0);
3341 1.1 christos
3342 1.1.1.2 christos if (! done)
3343 1.1 christos {
3344 1.1.1.4 christos /* Store the target address in the linkage table entry. */
3345 1.1.1.4 christos bfd_put_64 (abfd, value, got_sec->contents + got_offset);
3346 1.1 christos
3347 1.1 christos /* Install a dynamic relocation if needed. */
3348 1.1 christos if (((bfd_link_pic (info)
3349 1.1.1.4 christos && (!dyn_i->h
3350 1.1 christos || (ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
3351 1.1 christos && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, dyn_i->h))
3352 1.1 christos || dyn_i->h->root.type != bfd_link_hash_undefweak)
3353 1.1 christos && dyn_r_type != R_IA64_DTPREL32LSB
3354 1.1.1.2 christos && dyn_r_type != R_IA64_DTPREL64LSB)
3355 1.1 christos || elfNN_ia64_dynamic_symbol_p (dyn_i->h, info, dyn_r_type)
3356 1.1 christos || (dynindx != -1
3357 1.1 christos && (dyn_r_type == R_IA64_FPTR32LSB
3358 1.1 christos || dyn_r_type == R_IA64_FPTR64LSB)))
3359 1.1 christos && (!dyn_i->want_ltoff_fptr
3360 1.1 christos || !bfd_link_pie (info)
3361 1.1 christos || !dyn_i->h
3362 1.1 christos || dyn_i->h->root.type != bfd_link_hash_undefweak))
3363 1.1 christos {
3364 1.1 christos if (dynindx == -1
3365 1.1 christos && dyn_r_type != R_IA64_TPREL64LSB
3366 1.1 christos && dyn_r_type != R_IA64_DTPMOD64LSB
3367 1.1 christos && dyn_r_type != R_IA64_DTPREL32LSB
3368 1.1 christos && dyn_r_type != R_IA64_DTPREL64LSB)
3369 1.1 christos {
3370 1.1 christos dyn_r_type = R_IA64_RELNNLSB;
3371 1.1 christos dynindx = 0;
3372 1.1 christos addend = value;
3373 1.1 christos }
3374 1.1 christos
3375 1.1 christos if (bfd_big_endian (abfd))
3376 1.1 christos {
3377 1.1 christos switch (dyn_r_type)
3378 1.1 christos {
3379 1.1 christos case R_IA64_REL32LSB:
3380 1.1 christos dyn_r_type = R_IA64_REL32MSB;
3381 1.1 christos break;
3382 1.1 christos case R_IA64_DIR32LSB:
3383 1.1 christos dyn_r_type = R_IA64_DIR32MSB;
3384 1.1 christos break;
3385 1.1 christos case R_IA64_FPTR32LSB:
3386 1.1 christos dyn_r_type = R_IA64_FPTR32MSB;
3387 1.1 christos break;
3388 1.1 christos case R_IA64_DTPREL32LSB:
3389 1.1 christos dyn_r_type = R_IA64_DTPREL32MSB;
3390 1.1 christos break;
3391 1.1 christos case R_IA64_REL64LSB:
3392 1.1 christos dyn_r_type = R_IA64_REL64MSB;
3393 1.1 christos break;
3394 1.1 christos case R_IA64_DIR64LSB:
3395 1.1 christos dyn_r_type = R_IA64_DIR64MSB;
3396 1.1 christos break;
3397 1.1 christos case R_IA64_FPTR64LSB:
3398 1.1 christos dyn_r_type = R_IA64_FPTR64MSB;
3399 1.1 christos break;
3400 1.1 christos case R_IA64_TPREL64LSB:
3401 1.1 christos dyn_r_type = R_IA64_TPREL64MSB;
3402 1.1 christos break;
3403 1.1 christos case R_IA64_DTPMOD64LSB:
3404 1.1 christos dyn_r_type = R_IA64_DTPMOD64MSB;
3405 1.1 christos break;
3406 1.1 christos case R_IA64_DTPREL64LSB:
3407 1.1 christos dyn_r_type = R_IA64_DTPREL64MSB;
3408 1.1 christos break;
3409 1.1 christos default:
3410 1.1 christos BFD_ASSERT (FALSE);
3411 1.1 christos break;
3412 1.1 christos }
3413 1.1 christos }
3414 1.1 christos
3415 1.1 christos elfNN_ia64_install_dyn_reloc (abfd, NULL, got_sec,
3416 1.1 christos ia64_info->root.srelgot,
3417 1.1 christos got_offset, dyn_r_type,
3418 1.1 christos dynindx, addend);
3419 1.1 christos }
3420 1.1 christos }
3421 1.1 christos
3422 1.1 christos /* Return the address of the linkage table entry. */
3423 1.1 christos value = (got_sec->output_section->vma
3424 1.1 christos + got_sec->output_offset
3425 1.1 christos + got_offset);
3426 1.1 christos
3427 1.1 christos return value;
3428 1.1 christos }
3429 1.1 christos
3430 1.1 christos /* Fill in a function descriptor consisting of the function's code
3431 1.1 christos address and its global pointer. Return the descriptor's address. */
3432 1.1 christos
3433 1.1 christos static bfd_vma
3434 1.1 christos set_fptr_entry (bfd *abfd, struct bfd_link_info *info,
3435 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i,
3436 1.1 christos bfd_vma value)
3437 1.1 christos {
3438 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3439 1.1 christos asection *fptr_sec;
3440 1.1 christos
3441 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3442 1.1 christos if (ia64_info == NULL)
3443 1.1 christos return 0;
3444 1.1 christos
3445 1.1 christos fptr_sec = ia64_info->fptr_sec;
3446 1.1 christos
3447 1.1 christos if (!dyn_i->fptr_done)
3448 1.1 christos {
3449 1.1 christos dyn_i->fptr_done = 1;
3450 1.1 christos
3451 1.1 christos /* Fill in the function descriptor. */
3452 1.1 christos bfd_put_64 (abfd, value, fptr_sec->contents + dyn_i->fptr_offset);
3453 1.1 christos bfd_put_64 (abfd, _bfd_get_gp_value (abfd),
3454 1.1 christos fptr_sec->contents + dyn_i->fptr_offset + 8);
3455 1.1 christos if (ia64_info->rel_fptr_sec)
3456 1.1 christos {
3457 1.1 christos Elf_Internal_Rela outrel;
3458 1.1 christos bfd_byte *loc;
3459 1.1 christos
3460 1.1 christos if (bfd_little_endian (abfd))
3461 1.1 christos outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTLSB);
3462 1.1 christos else
3463 1.1 christos outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTMSB);
3464 1.1 christos outrel.r_addend = value;
3465 1.1 christos outrel.r_offset = (fptr_sec->output_section->vma
3466 1.1 christos + fptr_sec->output_offset
3467 1.1 christos + dyn_i->fptr_offset);
3468 1.1 christos loc = ia64_info->rel_fptr_sec->contents;
3469 1.1 christos loc += ia64_info->rel_fptr_sec->reloc_count++
3470 1.1 christos * sizeof (ElfNN_External_Rela);
3471 1.1 christos bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
3472 1.1 christos }
3473 1.1 christos }
3474 1.1 christos
3475 1.1 christos /* Return the descriptor's address. */
3476 1.1 christos value = (fptr_sec->output_section->vma
3477 1.1 christos + fptr_sec->output_offset
3478 1.1 christos + dyn_i->fptr_offset);
3479 1.1 christos
3480 1.1 christos return value;
3481 1.1 christos }
3482 1.1 christos
3483 1.1 christos /* Fill in a PLTOFF entry consisting of the function's code address
3484 1.1 christos and its global pointer. Return the descriptor's address. */
3485 1.1 christos
3486 1.1 christos static bfd_vma
3487 1.1 christos set_pltoff_entry (bfd *abfd, struct bfd_link_info *info,
3488 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i,
3489 1.1 christos bfd_vma value, bfd_boolean is_plt)
3490 1.1 christos {
3491 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3492 1.1 christos asection *pltoff_sec;
3493 1.1 christos
3494 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3495 1.1 christos if (ia64_info == NULL)
3496 1.1 christos return 0;
3497 1.1 christos
3498 1.1 christos pltoff_sec = ia64_info->pltoff_sec;
3499 1.1 christos
3500 1.1 christos /* Don't do anything if this symbol uses a real PLT entry. In
3501 1.1 christos that case, we'll fill this in during finish_dynamic_symbol. */
3502 1.1 christos if ((! dyn_i->want_plt || is_plt)
3503 1.1 christos && !dyn_i->pltoff_done)
3504 1.1 christos {
3505 1.1 christos bfd_vma gp = _bfd_get_gp_value (abfd);
3506 1.1 christos
3507 1.1.1.2 christos /* Fill in the function descriptor. */
3508 1.1 christos bfd_put_64 (abfd, value, pltoff_sec->contents + dyn_i->pltoff_offset);
3509 1.1.1.4 christos bfd_put_64 (abfd, gp, pltoff_sec->contents + dyn_i->pltoff_offset + 8);
3510 1.1.1.4 christos
3511 1.1 christos /* Install dynamic relocations if needed. */
3512 1.1 christos if (!is_plt
3513 1.1 christos && bfd_link_pic (info)
3514 1.1 christos && (!dyn_i->h
3515 1.1 christos || (ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
3516 1.1 christos && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, dyn_i->h))
3517 1.1 christos || dyn_i->h->root.type != bfd_link_hash_undefweak))
3518 1.1 christos {
3519 1.1 christos unsigned int dyn_r_type;
3520 1.1 christos
3521 1.1 christos if (bfd_big_endian (abfd))
3522 1.1 christos dyn_r_type = R_IA64_RELNNMSB;
3523 1.1 christos else
3524 1.1 christos dyn_r_type = R_IA64_RELNNLSB;
3525 1.1 christos
3526 1.1 christos elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
3527 1.1 christos ia64_info->rel_pltoff_sec,
3528 1.1 christos dyn_i->pltoff_offset,
3529 1.1 christos dyn_r_type, 0, value);
3530 1.1 christos elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
3531 1.1 christos ia64_info->rel_pltoff_sec,
3532 1.1 christos dyn_i->pltoff_offset + ARCH_SIZE / 8,
3533 1.1 christos dyn_r_type, 0, gp);
3534 1.1 christos }
3535 1.1 christos
3536 1.1 christos dyn_i->pltoff_done = 1;
3537 1.1 christos }
3538 1.1 christos
3539 1.1 christos /* Return the descriptor's address. */
3540 1.1 christos value = (pltoff_sec->output_section->vma
3541 1.1 christos + pltoff_sec->output_offset
3542 1.1 christos + dyn_i->pltoff_offset);
3543 1.1 christos
3544 1.1 christos return value;
3545 1.1 christos }
3546 1.1 christos
3547 1.1 christos /* Return the base VMA address which should be subtracted from real addresses
3548 1.1 christos when resolving @tprel() relocation.
3549 1.1 christos Main program TLS (whose template starts at PT_TLS p_vaddr)
3550 1.1 christos is assigned offset round(2 * size of pointer, PT_TLS p_align). */
3551 1.1 christos
3552 1.1 christos static bfd_vma
3553 1.1 christos elfNN_ia64_tprel_base (struct bfd_link_info *info)
3554 1.1 christos {
3555 1.1 christos asection *tls_sec = elf_hash_table (info)->tls_sec;
3556 1.1 christos return tls_sec->vma - align_power ((bfd_vma) ARCH_SIZE / 4,
3557 1.1 christos tls_sec->alignment_power);
3558 1.1 christos }
3559 1.1 christos
3560 1.1 christos /* Return the base VMA address which should be subtracted from real addresses
3561 1.1 christos when resolving @dtprel() relocation.
3562 1.1 christos This is PT_TLS segment p_vaddr. */
3563 1.1 christos
3564 1.1 christos static bfd_vma
3565 1.1 christos elfNN_ia64_dtprel_base (struct bfd_link_info *info)
3566 1.1 christos {
3567 1.1 christos return elf_hash_table (info)->tls_sec->vma;
3568 1.1 christos }
3569 1.1 christos
3570 1.1 christos /* Called through qsort to sort the .IA_64.unwind section during a
3571 1.1 christos non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
3572 1.1 christos to the output bfd so we can do proper endianness frobbing. */
3573 1.1 christos
3574 1.1 christos static bfd *elfNN_ia64_unwind_entry_compare_bfd;
3575 1.1 christos
3576 1.1 christos static int
3577 1.1 christos elfNN_ia64_unwind_entry_compare (const void * a, const void * b)
3578 1.1 christos {
3579 1.1 christos bfd_vma av, bv;
3580 1.1 christos
3581 1.1 christos av = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, a);
3582 1.1 christos bv = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, b);
3583 1.1 christos
3584 1.1 christos return (av < bv ? -1 : av > bv ? 1 : 0);
3585 1.1 christos }
3586 1.1 christos
3587 1.1 christos /* Make sure we've got ourselves a nice fat __gp value. */
3588 1.1 christos static bfd_boolean
3589 1.1 christos elfNN_ia64_choose_gp (bfd *abfd, struct bfd_link_info *info, bfd_boolean final)
3590 1.1 christos {
3591 1.1 christos bfd_vma min_vma = (bfd_vma) -1, max_vma = 0;
3592 1.1 christos bfd_vma min_short_vma = min_vma, max_short_vma = 0;
3593 1.1 christos struct elf_link_hash_entry *gp;
3594 1.1 christos bfd_vma gp_val;
3595 1.1 christos asection *os;
3596 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3597 1.1 christos
3598 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3599 1.1 christos if (ia64_info == NULL)
3600 1.1 christos return FALSE;
3601 1.1 christos
3602 1.1 christos /* Find the min and max vma of all sections marked short. Also collect
3603 1.1 christos min and max vma of any type, for use in selecting a nice gp. */
3604 1.1 christos for (os = abfd->sections; os ; os = os->next)
3605 1.1 christos {
3606 1.1 christos bfd_vma lo, hi;
3607 1.1 christos
3608 1.1 christos if ((os->flags & SEC_ALLOC) == 0)
3609 1.1 christos continue;
3610 1.1 christos
3611 1.1 christos lo = os->vma;
3612 1.1 christos /* When this function is called from elfNN_ia64_final_link
3613 1.1 christos the correct value to use is os->size. When called from
3614 1.1 christos elfNN_ia64_relax_section we are in the middle of section
3615 1.1 christos sizing; some sections will already have os->size set, others
3616 1.1 christos will have os->size zero and os->rawsize the previous size. */
3617 1.1 christos hi = os->vma + (!final && os->rawsize ? os->rawsize : os->size);
3618 1.1 christos if (hi < lo)
3619 1.1 christos hi = (bfd_vma) -1;
3620 1.1 christos
3621 1.1 christos if (min_vma > lo)
3622 1.1 christos min_vma = lo;
3623 1.1 christos if (max_vma < hi)
3624 1.1 christos max_vma = hi;
3625 1.1 christos if (os->flags & SEC_SMALL_DATA)
3626 1.1 christos {
3627 1.1 christos if (min_short_vma > lo)
3628 1.1 christos min_short_vma = lo;
3629 1.1 christos if (max_short_vma < hi)
3630 1.1 christos max_short_vma = hi;
3631 1.1 christos }
3632 1.1 christos }
3633 1.1 christos
3634 1.1 christos if (ia64_info->min_short_sec)
3635 1.1 christos {
3636 1.1 christos if (min_short_vma
3637 1.1 christos > (ia64_info->min_short_sec->vma
3638 1.1 christos + ia64_info->min_short_offset))
3639 1.1 christos min_short_vma = (ia64_info->min_short_sec->vma
3640 1.1 christos + ia64_info->min_short_offset);
3641 1.1 christos if (max_short_vma
3642 1.1 christos < (ia64_info->max_short_sec->vma
3643 1.1 christos + ia64_info->max_short_offset))
3644 1.1 christos max_short_vma = (ia64_info->max_short_sec->vma
3645 1.1 christos + ia64_info->max_short_offset);
3646 1.1 christos }
3647 1.1 christos
3648 1.1 christos /* See if the user wants to force a value. */
3649 1.1 christos gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
3650 1.1 christos FALSE, FALSE);
3651 1.1 christos
3652 1.1 christos if (gp
3653 1.1 christos && (gp->root.type == bfd_link_hash_defined
3654 1.1 christos || gp->root.type == bfd_link_hash_defweak))
3655 1.1 christos {
3656 1.1 christos asection *gp_sec = gp->root.u.def.section;
3657 1.1 christos gp_val = (gp->root.u.def.value
3658 1.1 christos + gp_sec->output_section->vma
3659 1.1 christos + gp_sec->output_offset);
3660 1.1 christos }
3661 1.1 christos else
3662 1.1 christos {
3663 1.1 christos /* Pick a sensible value. */
3664 1.1 christos
3665 1.1 christos if (ia64_info->min_short_sec)
3666 1.1 christos {
3667 1.1 christos bfd_vma short_range = max_short_vma - min_short_vma;
3668 1.1 christos
3669 1.1 christos /* If min_short_sec is set, pick one in the middle bewteen
3670 1.1 christos min_short_vma and max_short_vma. */
3671 1.1 christos if (short_range >= 0x400000)
3672 1.1 christos goto overflow;
3673 1.1 christos gp_val = min_short_vma + short_range / 2;
3674 1.1 christos }
3675 1.1 christos else
3676 1.1 christos {
3677 1.1 christos asection *got_sec = ia64_info->root.sgot;
3678 1.1 christos
3679 1.1 christos /* Start with just the address of the .got. */
3680 1.1 christos if (got_sec)
3681 1.1 christos gp_val = got_sec->output_section->vma;
3682 1.1 christos else if (max_short_vma != 0)
3683 1.1 christos gp_val = min_short_vma;
3684 1.1 christos else if (max_vma - min_vma < 0x200000)
3685 1.1 christos gp_val = min_vma;
3686 1.1 christos else
3687 1.1 christos gp_val = max_vma - 0x200000 + 8;
3688 1.1 christos }
3689 1.1 christos
3690 1.1 christos /* If it is possible to address the entire image, but we
3691 1.1 christos don't with the choice above, adjust. */
3692 1.1 christos if (max_vma - min_vma < 0x400000
3693 1.1 christos && (max_vma - gp_val >= 0x200000
3694 1.1 christos || gp_val - min_vma > 0x200000))
3695 1.1 christos gp_val = min_vma + 0x200000;
3696 1.1 christos else if (max_short_vma != 0)
3697 1.1 christos {
3698 1.1 christos /* If we don't cover all the short data, adjust. */
3699 1.1 christos if (max_short_vma - gp_val >= 0x200000)
3700 1.1 christos gp_val = min_short_vma + 0x200000;
3701 1.1 christos
3702 1.1 christos /* If we're addressing stuff past the end, adjust back. */
3703 1.1 christos if (gp_val > max_vma)
3704 1.1 christos gp_val = max_vma - 0x200000 + 8;
3705 1.1 christos }
3706 1.1 christos }
3707 1.1 christos
3708 1.1 christos /* Validate whether all SHF_IA_64_SHORT sections are within
3709 1.1 christos range of the chosen GP. */
3710 1.1.1.4 christos
3711 1.1.1.4 christos if (max_short_vma != 0)
3712 1.1.1.5 christos {
3713 1.1.1.5 christos if (max_short_vma - min_short_vma >= 0x400000)
3714 1.1 christos {
3715 1.1 christos overflow:
3716 1.1 christos _bfd_error_handler
3717 1.1 christos /* xgettext:c-format */
3718 1.1 christos (_("%pB: short data segment overflowed (%#" PRIx64 " >= 0x400000)"),
3719 1.1 christos abfd, (uint64_t) (max_short_vma - min_short_vma));
3720 1.1 christos return FALSE;
3721 1.1.1.4 christos }
3722 1.1.1.5 christos else if ((gp_val > min_short_vma
3723 1.1 christos && gp_val - min_short_vma > 0x200000)
3724 1.1 christos || (gp_val < max_short_vma
3725 1.1 christos && max_short_vma - gp_val >= 0x200000))
3726 1.1 christos {
3727 1.1 christos _bfd_error_handler
3728 1.1 christos (_("%pB: __gp does not cover short data segment"), abfd);
3729 1.1 christos return FALSE;
3730 1.1 christos }
3731 1.1 christos }
3732 1.1 christos
3733 1.1 christos _bfd_set_gp_value (abfd, gp_val);
3734 1.1 christos
3735 1.1 christos return TRUE;
3736 1.1 christos }
3737 1.1 christos
3738 1.1 christos static bfd_boolean
3739 1.1 christos elfNN_ia64_final_link (bfd *abfd, struct bfd_link_info *info)
3740 1.1 christos {
3741 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3742 1.1 christos asection *unwind_output_sec;
3743 1.1.1.2 christos
3744 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3745 1.1 christos if (ia64_info == NULL)
3746 1.1 christos return FALSE;
3747 1.1 christos
3748 1.1 christos /* Make sure we've got ourselves a nice fat __gp value. */
3749 1.1 christos if (!bfd_link_relocatable (info))
3750 1.1 christos {
3751 1.1 christos bfd_vma gp_val;
3752 1.1 christos struct elf_link_hash_entry *gp;
3753 1.1 christos
3754 1.1 christos /* We assume after gp is set, section size will only decrease. We
3755 1.1 christos need to adjust gp for it. */
3756 1.1.1.4 christos _bfd_set_gp_value (abfd, 0);
3757 1.1 christos if (! elfNN_ia64_choose_gp (abfd, info, TRUE))
3758 1.1 christos return FALSE;
3759 1.1 christos gp_val = _bfd_get_gp_value (abfd);
3760 1.1 christos
3761 1.1 christos gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
3762 1.1 christos FALSE, FALSE);
3763 1.1 christos if (gp)
3764 1.1 christos {
3765 1.1 christos gp->root.type = bfd_link_hash_defined;
3766 1.1 christos gp->root.u.def.value = gp_val;
3767 1.1 christos gp->root.u.def.section = bfd_abs_section_ptr;
3768 1.1 christos }
3769 1.1.1.2 christos }
3770 1.1 christos
3771 1.1 christos /* If we're producing a final executable, we need to sort the contents
3772 1.1 christos of the .IA_64.unwind section. Force this section to be relocated
3773 1.1 christos into memory rather than written immediately to the output file. */
3774 1.1 christos unwind_output_sec = NULL;
3775 1.1 christos if (!bfd_link_relocatable (info))
3776 1.1 christos {
3777 1.1 christos asection *s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_unwind);
3778 1.1 christos if (s)
3779 1.1 christos {
3780 1.1 christos unwind_output_sec = s->output_section;
3781 1.1 christos unwind_output_sec->contents
3782 1.1 christos = bfd_malloc (unwind_output_sec->size);
3783 1.1 christos if (unwind_output_sec->contents == NULL)
3784 1.1 christos return FALSE;
3785 1.1 christos }
3786 1.1 christos }
3787 1.1 christos
3788 1.1 christos /* Invoke the regular ELF backend linker to do all the work. */
3789 1.1 christos if (!bfd_elf_final_link (abfd, info))
3790 1.1 christos return FALSE;
3791 1.1 christos
3792 1.1 christos if (unwind_output_sec)
3793 1.1 christos {
3794 1.1 christos elfNN_ia64_unwind_entry_compare_bfd = abfd;
3795 1.1 christos qsort (unwind_output_sec->contents,
3796 1.1 christos (size_t) (unwind_output_sec->size / 24),
3797 1.1 christos 24,
3798 1.1 christos elfNN_ia64_unwind_entry_compare);
3799 1.1 christos
3800 1.1 christos if (! bfd_set_section_contents (abfd, unwind_output_sec,
3801 1.1 christos unwind_output_sec->contents, (bfd_vma) 0,
3802 1.1 christos unwind_output_sec->size))
3803 1.1 christos return FALSE;
3804 1.1 christos }
3805 1.1 christos
3806 1.1 christos return TRUE;
3807 1.1 christos }
3808 1.1 christos
3809 1.1 christos static bfd_boolean
3810 1.1 christos elfNN_ia64_relocate_section (bfd *output_bfd,
3811 1.1 christos struct bfd_link_info *info,
3812 1.1 christos bfd *input_bfd,
3813 1.1 christos asection *input_section,
3814 1.1 christos bfd_byte *contents,
3815 1.1 christos Elf_Internal_Rela *relocs,
3816 1.1 christos Elf_Internal_Sym *local_syms,
3817 1.1 christos asection **local_sections)
3818 1.1 christos {
3819 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3820 1.1 christos Elf_Internal_Shdr *symtab_hdr;
3821 1.1 christos Elf_Internal_Rela *rel;
3822 1.1 christos Elf_Internal_Rela *relend;
3823 1.1 christos asection *srel;
3824 1.1 christos bfd_boolean ret_val = TRUE; /* for non-fatal errors */
3825 1.1 christos bfd_vma gp_val;
3826 1.1 christos
3827 1.1.1.2 christos symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3828 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3829 1.1 christos if (ia64_info == NULL)
3830 1.1 christos return FALSE;
3831 1.1 christos
3832 1.1 christos /* Infect various flags from the input section to the output section. */
3833 1.1 christos if (bfd_link_relocatable (info))
3834 1.1 christos {
3835 1.1 christos bfd_vma flags;
3836 1.1 christos
3837 1.1 christos flags = elf_section_data(input_section)->this_hdr.sh_flags;
3838 1.1 christos flags &= SHF_IA_64_NORECOV;
3839 1.1 christos
3840 1.1 christos elf_section_data(input_section->output_section)
3841 1.1 christos ->this_hdr.sh_flags |= flags;
3842 1.1 christos }
3843 1.1 christos
3844 1.1 christos gp_val = _bfd_get_gp_value (output_bfd);
3845 1.1 christos srel = get_reloc_section (input_bfd, ia64_info, input_section, FALSE);
3846 1.1 christos
3847 1.1 christos rel = relocs;
3848 1.1 christos relend = relocs + input_section->reloc_count;
3849 1.1 christos for (; rel < relend; ++rel)
3850 1.1 christos {
3851 1.1 christos struct elf_link_hash_entry *h;
3852 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
3853 1.1 christos bfd_reloc_status_type r;
3854 1.1 christos reloc_howto_type *howto;
3855 1.1 christos unsigned long r_symndx;
3856 1.1 christos Elf_Internal_Sym *sym;
3857 1.1 christos unsigned int r_type;
3858 1.1 christos bfd_vma value;
3859 1.1 christos asection *sym_sec;
3860 1.1 christos bfd_byte *hit_addr;
3861 1.1.1.5 christos bfd_boolean dynamic_symbol_p;
3862 1.1.1.5 christos bfd_boolean undef_weak_ref;
3863 1.1.1.5 christos
3864 1.1 christos r_type = ELFNN_R_TYPE (rel->r_info);
3865 1.1 christos if (r_type > R_IA64_MAX_RELOC_CODE)
3866 1.1 christos {
3867 1.1 christos /* xgettext:c-format */
3868 1.1 christos _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
3869 1.1 christos input_bfd, (int) r_type);
3870 1.1.1.5 christos bfd_set_error (bfd_error_bad_value);
3871 1.1.1.5 christos ret_val = FALSE;
3872 1.1.1.5 christos continue;
3873 1.1.1.5 christos }
3874 1.1.1.5 christos
3875 1.1.1.6 christos howto = ia64_elf_lookup_howto (r_type);
3876 1.1 christos if (howto == NULL)
3877 1.1 christos {
3878 1.1 christos ret_val = FALSE;
3879 1.1 christos continue;
3880 1.1 christos }
3881 1.1 christos
3882 1.1 christos r_symndx = ELFNN_R_SYM (rel->r_info);
3883 1.1 christos h = NULL;
3884 1.1 christos sym = NULL;
3885 1.1 christos sym_sec = NULL;
3886 1.1 christos undef_weak_ref = FALSE;
3887 1.1 christos
3888 1.1 christos if (r_symndx < symtab_hdr->sh_info)
3889 1.1 christos {
3890 1.1.1.2 christos /* Reloc against local symbol. */
3891 1.1 christos asection *msec;
3892 1.1 christos sym = local_syms + r_symndx;
3893 1.1 christos sym_sec = local_sections[r_symndx];
3894 1.1 christos msec = sym_sec;
3895 1.1 christos value = _bfd_elf_rela_local_sym (output_bfd, sym, &msec, rel);
3896 1.1 christos if (!bfd_link_relocatable (info)
3897 1.1 christos && (sym_sec->flags & SEC_MERGE) != 0
3898 1.1 christos && ELF_ST_TYPE (sym->st_info) == STT_SECTION
3899 1.1 christos && sym_sec->sec_info_type == SEC_INFO_TYPE_MERGE)
3900 1.1 christos {
3901 1.1 christos struct elfNN_ia64_local_hash_entry *loc_h;
3902 1.1 christos
3903 1.1 christos loc_h = get_local_sym_hash (ia64_info, input_bfd, rel, FALSE);
3904 1.1 christos if (loc_h && ! loc_h->sec_merge_done)
3905 1.1 christos {
3906 1.1 christos struct elfNN_ia64_dyn_sym_info *dynent;
3907 1.1 christos unsigned int count;
3908 1.1 christos
3909 1.1 christos for (count = loc_h->count, dynent = loc_h->info;
3910 1.1 christos count != 0;
3911 1.1 christos count--, dynent++)
3912 1.1 christos {
3913 1.1 christos msec = sym_sec;
3914 1.1 christos dynent->addend =
3915 1.1 christos _bfd_merged_section_offset (output_bfd, &msec,
3916 1.1 christos elf_section_data (msec)->
3917 1.1 christos sec_info,
3918 1.1 christos sym->st_value
3919 1.1 christos + dynent->addend);
3920 1.1 christos dynent->addend -= sym->st_value;
3921 1.1 christos dynent->addend += msec->output_section->vma
3922 1.1 christos + msec->output_offset
3923 1.1 christos - sym_sec->output_section->vma
3924 1.1 christos - sym_sec->output_offset;
3925 1.1 christos }
3926 1.1 christos
3927 1.1 christos /* We may have introduced duplicated entries. We need
3928 1.1 christos to remove them properly. */
3929 1.1 christos count = sort_dyn_sym_info (loc_h->info, loc_h->count);
3930 1.1 christos if (count != loc_h->count)
3931 1.1 christos {
3932 1.1 christos loc_h->count = count;
3933 1.1 christos loc_h->sorted_count = count;
3934 1.1 christos }
3935 1.1 christos
3936 1.1 christos loc_h->sec_merge_done = 1;
3937 1.1.1.2 christos }
3938 1.1 christos }
3939 1.1 christos }
3940 1.1 christos else
3941 1.1 christos {
3942 1.1 christos bfd_boolean unresolved_reloc;
3943 1.1.1.2 christos bfd_boolean warned, ignored;
3944 1.1 christos struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
3945 1.1 christos
3946 1.1 christos RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3947 1.1.1.2 christos r_symndx, symtab_hdr, sym_hashes,
3948 1.1 christos h, sym_sec, value,
3949 1.1 christos unresolved_reloc, warned, ignored);
3950 1.1 christos
3951 1.1 christos if (h->root.type == bfd_link_hash_undefweak)
3952 1.1 christos undef_weak_ref = TRUE;
3953 1.1 christos else if (warned || (ignored && bfd_link_executable (info)))
3954 1.1 christos continue;
3955 1.1.1.2 christos }
3956 1.1 christos
3957 1.1 christos if (sym_sec != NULL && discarded_section (sym_sec))
3958 1.1 christos RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3959 1.1 christos rel, 1, relend, howto, 0, contents);
3960 1.1 christos
3961 1.1 christos if (bfd_link_relocatable (info))
3962 1.1 christos continue;
3963 1.1 christos
3964 1.1 christos hit_addr = contents + rel->r_offset;
3965 1.1 christos value += rel->r_addend;
3966 1.1 christos dynamic_symbol_p = elfNN_ia64_dynamic_symbol_p (h, info, r_type);
3967 1.1 christos
3968 1.1 christos switch (r_type)
3969 1.1 christos {
3970 1.1 christos case R_IA64_NONE:
3971 1.1 christos case R_IA64_LDXMOV:
3972 1.1 christos continue;
3973 1.1 christos
3974 1.1 christos case R_IA64_IMM14:
3975 1.1 christos case R_IA64_IMM22:
3976 1.1.1.2 christos case R_IA64_IMM64:
3977 1.1.1.4 christos case R_IA64_DIR32MSB:
3978 1.1 christos case R_IA64_DIR32LSB:
3979 1.1 christos case R_IA64_DIR64MSB:
3980 1.1 christos case R_IA64_DIR64LSB:
3981 1.1 christos /* Install a dynamic relocation for this reloc. */
3982 1.1 christos if ((dynamic_symbol_p || bfd_link_pic (info))
3983 1.1 christos && !(h && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))
3984 1.1 christos && r_symndx != STN_UNDEF
3985 1.1 christos && (input_section->flags & SEC_ALLOC) != 0)
3986 1.1 christos {
3987 1.1 christos unsigned int dyn_r_type;
3988 1.1 christos long dynindx;
3989 1.1 christos bfd_vma addend;
3990 1.1 christos
3991 1.1 christos BFD_ASSERT (srel != NULL);
3992 1.1 christos
3993 1.1 christos switch (r_type)
3994 1.1.1.4 christos {
3995 1.1.1.4 christos case R_IA64_IMM14:
3996 1.1.1.5 christos case R_IA64_IMM22:
3997 1.1 christos case R_IA64_IMM64:
3998 1.1 christos /* ??? People shouldn't be doing non-pic code in
3999 1.1 christos shared libraries nor dynamic executables. */
4000 1.1 christos _bfd_error_handler
4001 1.1 christos /* xgettext:c-format */
4002 1.1 christos (_("%pB: non-pic code with imm relocation against dynamic symbol `%s'"),
4003 1.1 christos input_bfd,
4004 1.1 christos h ? h->root.root.string
4005 1.1 christos : bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4006 1.1 christos sym_sec));
4007 1.1 christos ret_val = FALSE;
4008 1.1 christos continue;
4009 1.1 christos
4010 1.1 christos default:
4011 1.1 christos break;
4012 1.1 christos }
4013 1.1 christos
4014 1.1 christos /* If we don't need dynamic symbol lookup, find a
4015 1.1 christos matching RELATIVE relocation. */
4016 1.1 christos dyn_r_type = r_type;
4017 1.1 christos if (dynamic_symbol_p)
4018 1.1 christos {
4019 1.1 christos dynindx = h->dynindx;
4020 1.1 christos addend = rel->r_addend;
4021 1.1 christos value = 0;
4022 1.1 christos }
4023 1.1 christos else
4024 1.1 christos {
4025 1.1 christos switch (r_type)
4026 1.1 christos {
4027 1.1 christos case R_IA64_DIR32MSB:
4028 1.1 christos dyn_r_type = R_IA64_REL32MSB;
4029 1.1 christos break;
4030 1.1 christos case R_IA64_DIR32LSB:
4031 1.1 christos dyn_r_type = R_IA64_REL32LSB;
4032 1.1 christos break;
4033 1.1 christos case R_IA64_DIR64MSB:
4034 1.1 christos dyn_r_type = R_IA64_REL64MSB;
4035 1.1 christos break;
4036 1.1 christos case R_IA64_DIR64LSB:
4037 1.1 christos dyn_r_type = R_IA64_REL64LSB;
4038 1.1 christos break;
4039 1.1 christos
4040 1.1 christos default:
4041 1.1 christos break;
4042 1.1 christos }
4043 1.1 christos dynindx = 0;
4044 1.1 christos addend = value;
4045 1.1 christos }
4046 1.1 christos
4047 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4048 1.1 christos srel, rel->r_offset, dyn_r_type,
4049 1.1 christos dynindx, addend);
4050 1.1 christos }
4051 1.1 christos /* Fall through. */
4052 1.1 christos
4053 1.1 christos case R_IA64_LTV32MSB:
4054 1.1 christos case R_IA64_LTV32LSB:
4055 1.1 christos case R_IA64_LTV64MSB:
4056 1.1 christos case R_IA64_LTV64LSB:
4057 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4058 1.1 christos break;
4059 1.1 christos
4060 1.1 christos case R_IA64_GPREL22:
4061 1.1 christos case R_IA64_GPREL64I:
4062 1.1.1.4 christos case R_IA64_GPREL32MSB:
4063 1.1.1.4 christos case R_IA64_GPREL32LSB:
4064 1.1.1.5 christos case R_IA64_GPREL64MSB:
4065 1.1 christos case R_IA64_GPREL64LSB:
4066 1.1 christos if (dynamic_symbol_p)
4067 1.1 christos {
4068 1.1 christos _bfd_error_handler
4069 1.1 christos /* xgettext:c-format */
4070 1.1 christos (_("%pB: @gprel relocation against dynamic symbol %s"),
4071 1.1 christos input_bfd,
4072 1.1 christos h ? h->root.root.string
4073 1.1 christos : bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4074 1.1 christos sym_sec));
4075 1.1 christos ret_val = FALSE;
4076 1.1 christos continue;
4077 1.1 christos }
4078 1.1 christos value -= gp_val;
4079 1.1.1.4 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4080 1.1 christos break;
4081 1.1 christos
4082 1.1 christos case R_IA64_LTOFF22:
4083 1.1 christos case R_IA64_LTOFF22X:
4084 1.1 christos case R_IA64_LTOFF64I:
4085 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4086 1.1 christos value = set_got_entry (input_bfd, info, dyn_i, (h ? h->dynindx : -1),
4087 1.1 christos rel->r_addend, value, R_IA64_DIRNNLSB);
4088 1.1 christos value -= gp_val;
4089 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4090 1.1.1.4 christos break;
4091 1.1 christos
4092 1.1 christos case R_IA64_PLTOFF22:
4093 1.1 christos case R_IA64_PLTOFF64I:
4094 1.1 christos case R_IA64_PLTOFF64MSB:
4095 1.1 christos case R_IA64_PLTOFF64LSB:
4096 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4097 1.1 christos value = set_pltoff_entry (output_bfd, info, dyn_i, value, FALSE);
4098 1.1 christos value -= gp_val;
4099 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4100 1.1 christos break;
4101 1.1.1.4 christos
4102 1.1 christos case R_IA64_FPTR64I:
4103 1.1 christos case R_IA64_FPTR32MSB:
4104 1.1 christos case R_IA64_FPTR32LSB:
4105 1.1 christos case R_IA64_FPTR64MSB:
4106 1.1 christos case R_IA64_FPTR64LSB:
4107 1.1.1.2 christos dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4108 1.1 christos if (dyn_i->want_fptr)
4109 1.1 christos {
4110 1.1 christos if (!undef_weak_ref)
4111 1.1 christos value = set_fptr_entry (output_bfd, info, dyn_i, value);
4112 1.1 christos }
4113 1.1 christos if (!dyn_i->want_fptr || bfd_link_pie (info))
4114 1.1 christos {
4115 1.1 christos long dynindx;
4116 1.1 christos unsigned int dyn_r_type = r_type;
4117 1.1 christos bfd_vma addend = rel->r_addend;
4118 1.1 christos
4119 1.1 christos /* Otherwise, we expect the dynamic linker to create
4120 1.1 christos the entry. */
4121 1.1 christos
4122 1.1 christos if (dyn_i->want_fptr)
4123 1.1 christos {
4124 1.1 christos if (r_type == R_IA64_FPTR64I)
4125 1.1 christos {
4126 1.1.1.4 christos /* We can't represent this without a dynamic symbol.
4127 1.1.1.5 christos Adjust the relocation to be against an output
4128 1.1 christos section symbol, which are always present in the
4129 1.1 christos dynamic symbol table. */
4130 1.1 christos /* ??? People shouldn't be doing non-pic code in
4131 1.1 christos shared libraries. Hork. */
4132 1.1 christos _bfd_error_handler
4133 1.1 christos (_("%pB: linking non-pic code in a position independent executable"),
4134 1.1 christos input_bfd);
4135 1.1 christos ret_val = FALSE;
4136 1.1 christos continue;
4137 1.1 christos }
4138 1.1 christos dynindx = 0;
4139 1.1 christos addend = value;
4140 1.1 christos dyn_r_type = r_type + R_IA64_RELNNLSB - R_IA64_FPTRNNLSB;
4141 1.1 christos }
4142 1.1 christos else if (h)
4143 1.1 christos {
4144 1.1 christos if (h->dynindx != -1)
4145 1.1 christos dynindx = h->dynindx;
4146 1.1 christos else
4147 1.1 christos dynindx = (_bfd_elf_link_lookup_local_dynindx
4148 1.1 christos (info, h->root.u.def.section->owner,
4149 1.1 christos global_sym_index (h)));
4150 1.1 christos value = 0;
4151 1.1 christos }
4152 1.1 christos else
4153 1.1 christos {
4154 1.1 christos dynindx = (_bfd_elf_link_lookup_local_dynindx
4155 1.1 christos (info, input_bfd, (long) r_symndx));
4156 1.1 christos value = 0;
4157 1.1 christos }
4158 1.1 christos
4159 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4160 1.1 christos srel, rel->r_offset, dyn_r_type,
4161 1.1 christos dynindx, addend);
4162 1.1 christos }
4163 1.1 christos
4164 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4165 1.1 christos break;
4166 1.1 christos
4167 1.1 christos case R_IA64_LTOFF_FPTR22:
4168 1.1 christos case R_IA64_LTOFF_FPTR64I:
4169 1.1 christos case R_IA64_LTOFF_FPTR32MSB:
4170 1.1 christos case R_IA64_LTOFF_FPTR32LSB:
4171 1.1 christos case R_IA64_LTOFF_FPTR64MSB:
4172 1.1 christos case R_IA64_LTOFF_FPTR64LSB:
4173 1.1 christos {
4174 1.1.1.4 christos long dynindx;
4175 1.1.1.4 christos
4176 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4177 1.1 christos if (dyn_i->want_fptr)
4178 1.1 christos {
4179 1.1 christos BFD_ASSERT (h == NULL || h->dynindx == -1);
4180 1.1.1.4 christos if (!undef_weak_ref)
4181 1.1 christos value = set_fptr_entry (output_bfd, info, dyn_i, value);
4182 1.1.1.4 christos dynindx = -1;
4183 1.1 christos }
4184 1.1 christos else
4185 1.1 christos {
4186 1.1 christos /* Otherwise, we expect the dynamic linker to create
4187 1.1 christos the entry. */
4188 1.1 christos if (h)
4189 1.1 christos {
4190 1.1 christos if (h->dynindx != -1)
4191 1.1 christos dynindx = h->dynindx;
4192 1.1 christos else
4193 1.1 christos dynindx = (_bfd_elf_link_lookup_local_dynindx
4194 1.1 christos (info, h->root.u.def.section->owner,
4195 1.1 christos global_sym_index (h)));
4196 1.1 christos }
4197 1.1 christos else
4198 1.1 christos dynindx = (_bfd_elf_link_lookup_local_dynindx
4199 1.1 christos (info, input_bfd, (long) r_symndx));
4200 1.1 christos value = 0;
4201 1.1 christos }
4202 1.1 christos
4203 1.1 christos value = set_got_entry (output_bfd, info, dyn_i, dynindx,
4204 1.1 christos rel->r_addend, value, R_IA64_FPTRNNLSB);
4205 1.1 christos value -= gp_val;
4206 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4207 1.1 christos }
4208 1.1 christos break;
4209 1.1 christos
4210 1.1 christos case R_IA64_PCREL32MSB:
4211 1.1 christos case R_IA64_PCREL32LSB:
4212 1.1 christos case R_IA64_PCREL64MSB:
4213 1.1 christos case R_IA64_PCREL64LSB:
4214 1.1 christos /* Install a dynamic relocation for this reloc. */
4215 1.1 christos if (dynamic_symbol_p && r_symndx != STN_UNDEF)
4216 1.1 christos {
4217 1.1 christos BFD_ASSERT (srel != NULL);
4218 1.1 christos
4219 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4220 1.1 christos srel, rel->r_offset, r_type,
4221 1.1 christos h->dynindx, rel->r_addend);
4222 1.1 christos }
4223 1.1 christos goto finish_pcrel;
4224 1.1 christos
4225 1.1 christos case R_IA64_PCREL21B:
4226 1.1 christos case R_IA64_PCREL60B:
4227 1.1 christos /* We should have created a PLT entry for any dynamic symbol. */
4228 1.1 christos dyn_i = NULL;
4229 1.1 christos if (h)
4230 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE);
4231 1.1 christos
4232 1.1 christos if (dyn_i && dyn_i->want_plt2)
4233 1.1 christos {
4234 1.1 christos /* Should have caught this earlier. */
4235 1.1 christos BFD_ASSERT (rel->r_addend == 0);
4236 1.1 christos
4237 1.1 christos value = (ia64_info->root.splt->output_section->vma
4238 1.1 christos + ia64_info->root.splt->output_offset
4239 1.1 christos + dyn_i->plt2_offset);
4240 1.1 christos }
4241 1.1 christos else
4242 1.1 christos {
4243 1.1 christos /* Since there's no PLT entry, Validate that this is
4244 1.1 christos locally defined. */
4245 1.1 christos BFD_ASSERT (undef_weak_ref || sym_sec->output_section != NULL);
4246 1.1 christos
4247 1.1 christos /* If the symbol is undef_weak, we shouldn't be trying
4248 1.1 christos to call it. There's every chance that we'd wind up
4249 1.1 christos with an out-of-range fixup here. Don't bother setting
4250 1.1 christos any value at all. */
4251 1.1 christos if (undef_weak_ref)
4252 1.1 christos continue;
4253 1.1 christos }
4254 1.1 christos goto finish_pcrel;
4255 1.1 christos
4256 1.1 christos case R_IA64_PCREL21BI:
4257 1.1 christos case R_IA64_PCREL21F:
4258 1.1 christos case R_IA64_PCREL21M:
4259 1.1 christos case R_IA64_PCREL22:
4260 1.1 christos case R_IA64_PCREL64I:
4261 1.1 christos /* The PCREL21BI reloc is specifically not intended for use with
4262 1.1 christos dynamic relocs. PCREL21F and PCREL21M are used for speculation
4263 1.1 christos fixup code, and thus probably ought not be dynamic. The
4264 1.1.1.4 christos PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4265 1.1.1.5 christos if (dynamic_symbol_p)
4266 1.1 christos {
4267 1.1.1.4 christos const char *msg;
4268 1.1.1.5 christos
4269 1.1 christos if (r_type == R_IA64_PCREL21BI)
4270 1.1.1.4 christos /* xgettext:c-format */
4271 1.1.1.5 christos msg = _("%pB: @internal branch to dynamic symbol %s");
4272 1.1.1.4 christos else if (r_type == R_IA64_PCREL21F || r_type == R_IA64_PCREL21M)
4273 1.1.1.4 christos /* xgettext:c-format */
4274 1.1.1.4 christos msg = _("%pB: speculation fixup to dynamic symbol %s");
4275 1.1.1.4 christos else
4276 1.1.1.4 christos /* xgettext:c-format */
4277 1.1.1.4 christos msg = _("%pB: @pcrel relocation against dynamic symbol %s");
4278 1.1 christos _bfd_error_handler (msg, input_bfd,
4279 1.1 christos h ? h->root.root.string
4280 1.1 christos : bfd_elf_sym_name (input_bfd,
4281 1.1 christos symtab_hdr,
4282 1.1 christos sym,
4283 1.1 christos sym_sec));
4284 1.1 christos ret_val = FALSE;
4285 1.1 christos continue;
4286 1.1 christos }
4287 1.1 christos goto finish_pcrel;
4288 1.1 christos
4289 1.1 christos finish_pcrel:
4290 1.1 christos /* Make pc-relative. */
4291 1.1 christos value -= (input_section->output_section->vma
4292 1.1 christos + input_section->output_offset
4293 1.1 christos + rel->r_offset) & ~ (bfd_vma) 0x3;
4294 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4295 1.1 christos break;
4296 1.1 christos
4297 1.1 christos case R_IA64_SEGREL32MSB:
4298 1.1 christos case R_IA64_SEGREL32LSB:
4299 1.1 christos case R_IA64_SEGREL64MSB:
4300 1.1 christos case R_IA64_SEGREL64LSB:
4301 1.1 christos {
4302 1.1 christos /* Find the segment that contains the output_section. */
4303 1.1 christos Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section
4304 1.1 christos (output_bfd, input_section->output_section);
4305 1.1 christos
4306 1.1 christos if (p == NULL)
4307 1.1 christos {
4308 1.1 christos r = bfd_reloc_notsupported;
4309 1.1 christos }
4310 1.1 christos else
4311 1.1 christos {
4312 1.1 christos /* The VMA of the segment is the vaddr of the associated
4313 1.1 christos program header. */
4314 1.1 christos if (value > p->p_vaddr)
4315 1.1 christos value -= p->p_vaddr;
4316 1.1 christos else
4317 1.1 christos value = 0;
4318 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4319 1.1 christos }
4320 1.1 christos break;
4321 1.1 christos }
4322 1.1 christos
4323 1.1 christos case R_IA64_SECREL32MSB:
4324 1.1 christos case R_IA64_SECREL32LSB:
4325 1.1 christos case R_IA64_SECREL64MSB:
4326 1.1 christos case R_IA64_SECREL64LSB:
4327 1.1 christos /* Make output-section relative to section where the symbol
4328 1.1 christos is defined. PR 475 */
4329 1.1 christos if (sym_sec)
4330 1.1 christos value -= sym_sec->output_section->vma;
4331 1.1.1.2 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4332 1.1 christos break;
4333 1.1 christos
4334 1.1 christos case R_IA64_IPLTMSB:
4335 1.1 christos case R_IA64_IPLTLSB:
4336 1.1 christos /* Install a dynamic relocation for this reloc. */
4337 1.1 christos if ((dynamic_symbol_p || bfd_link_pic (info))
4338 1.1 christos && (input_section->flags & SEC_ALLOC) != 0)
4339 1.1 christos {
4340 1.1 christos BFD_ASSERT (srel != NULL);
4341 1.1 christos
4342 1.1 christos /* If we don't need dynamic symbol lookup, install two
4343 1.1 christos RELATIVE relocations. */
4344 1.1 christos if (!dynamic_symbol_p)
4345 1.1 christos {
4346 1.1 christos unsigned int dyn_r_type;
4347 1.1 christos
4348 1.1 christos if (r_type == R_IA64_IPLTMSB)
4349 1.1 christos dyn_r_type = R_IA64_REL64MSB;
4350 1.1 christos else
4351 1.1 christos dyn_r_type = R_IA64_REL64LSB;
4352 1.1 christos
4353 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info,
4354 1.1 christos input_section,
4355 1.1 christos srel, rel->r_offset,
4356 1.1 christos dyn_r_type, 0, value);
4357 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info,
4358 1.1 christos input_section,
4359 1.1 christos srel, rel->r_offset + 8,
4360 1.1 christos dyn_r_type, 0, gp_val);
4361 1.1 christos }
4362 1.1 christos else
4363 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4364 1.1 christos srel, rel->r_offset, r_type,
4365 1.1 christos h->dynindx, rel->r_addend);
4366 1.1 christos }
4367 1.1 christos
4368 1.1 christos if (r_type == R_IA64_IPLTMSB)
4369 1.1 christos r_type = R_IA64_DIR64MSB;
4370 1.1 christos else
4371 1.1 christos r_type = R_IA64_DIR64LSB;
4372 1.1 christos ia64_elf_install_value (hit_addr, value, r_type);
4373 1.1 christos r = ia64_elf_install_value (hit_addr + 8, gp_val, r_type);
4374 1.1 christos break;
4375 1.1 christos
4376 1.1 christos case R_IA64_TPREL14:
4377 1.1 christos case R_IA64_TPREL22:
4378 1.1 christos case R_IA64_TPREL64I:
4379 1.1 christos if (elf_hash_table (info)->tls_sec == NULL)
4380 1.1 christos goto missing_tls_sec;
4381 1.1 christos value -= elfNN_ia64_tprel_base (info);
4382 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4383 1.1 christos break;
4384 1.1 christos
4385 1.1 christos case R_IA64_DTPREL14:
4386 1.1 christos case R_IA64_DTPREL22:
4387 1.1 christos case R_IA64_DTPREL64I:
4388 1.1 christos case R_IA64_DTPREL32LSB:
4389 1.1 christos case R_IA64_DTPREL32MSB:
4390 1.1 christos case R_IA64_DTPREL64LSB:
4391 1.1 christos case R_IA64_DTPREL64MSB:
4392 1.1 christos if (elf_hash_table (info)->tls_sec == NULL)
4393 1.1 christos goto missing_tls_sec;
4394 1.1 christos value -= elfNN_ia64_dtprel_base (info);
4395 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4396 1.1 christos break;
4397 1.1 christos
4398 1.1 christos case R_IA64_LTOFF_TPREL22:
4399 1.1 christos case R_IA64_LTOFF_DTPMOD22:
4400 1.1 christos case R_IA64_LTOFF_DTPREL22:
4401 1.1 christos {
4402 1.1 christos int got_r_type;
4403 1.1 christos long dynindx = h ? h->dynindx : -1;
4404 1.1 christos bfd_vma r_addend = rel->r_addend;
4405 1.1 christos
4406 1.1 christos switch (r_type)
4407 1.1 christos {
4408 1.1.1.2 christos default:
4409 1.1 christos case R_IA64_LTOFF_TPREL22:
4410 1.1 christos if (!dynamic_symbol_p)
4411 1.1 christos {
4412 1.1 christos if (elf_hash_table (info)->tls_sec == NULL)
4413 1.1 christos goto missing_tls_sec;
4414 1.1 christos if (!bfd_link_pic (info))
4415 1.1 christos value -= elfNN_ia64_tprel_base (info);
4416 1.1 christos else
4417 1.1 christos {
4418 1.1 christos r_addend += value - elfNN_ia64_dtprel_base (info);
4419 1.1.1.2 christos dynindx = 0;
4420 1.1 christos }
4421 1.1 christos }
4422 1.1 christos got_r_type = R_IA64_TPREL64LSB;
4423 1.1 christos break;
4424 1.1 christos case R_IA64_LTOFF_DTPMOD22:
4425 1.1 christos if (!dynamic_symbol_p && !bfd_link_pic (info))
4426 1.1 christos value = 1;
4427 1.1 christos got_r_type = R_IA64_DTPMOD64LSB;
4428 1.1 christos break;
4429 1.1 christos case R_IA64_LTOFF_DTPREL22:
4430 1.1 christos if (!dynamic_symbol_p)
4431 1.1 christos {
4432 1.1 christos if (elf_hash_table (info)->tls_sec == NULL)
4433 1.1 christos goto missing_tls_sec;
4434 1.1 christos value -= elfNN_ia64_dtprel_base (info);
4435 1.1 christos }
4436 1.1 christos got_r_type = R_IA64_DTPRELNNLSB;
4437 1.1 christos break;
4438 1.1 christos }
4439 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4440 1.1 christos value = set_got_entry (input_bfd, info, dyn_i, dynindx, r_addend,
4441 1.1 christos value, got_r_type);
4442 1.1 christos value -= gp_val;
4443 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4444 1.1 christos }
4445 1.1 christos break;
4446 1.1 christos
4447 1.1 christos default:
4448 1.1 christos r = bfd_reloc_notsupported;
4449 1.1 christos break;
4450 1.1 christos }
4451 1.1 christos
4452 1.1 christos switch (r)
4453 1.1 christos {
4454 1.1 christos case bfd_reloc_ok:
4455 1.1 christos break;
4456 1.1 christos
4457 1.1 christos case bfd_reloc_undefined:
4458 1.1 christos /* This can happen for global table relative relocs if
4459 1.1 christos __gp is undefined. This is a panic situation so we
4460 1.1 christos don't try to continue. */
4461 1.1 christos (*info->callbacks->undefined_symbol)
4462 1.1 christos (info, "__gp", input_bfd, input_section, rel->r_offset, 1);
4463 1.1 christos return FALSE;
4464 1.1 christos
4465 1.1 christos case bfd_reloc_notsupported:
4466 1.1 christos {
4467 1.1 christos const char *name;
4468 1.1.1.3 christos
4469 1.1.1.3 christos if (h)
4470 1.1.1.3 christos name = h->root.root.string;
4471 1.1 christos else
4472 1.1 christos name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4473 1.1 christos sym_sec);
4474 1.1 christos (*info->callbacks->warning) (info, _("unsupported reloc"),
4475 1.1 christos name, input_bfd,
4476 1.1 christos input_section, rel->r_offset);
4477 1.1 christos ret_val = FALSE;
4478 1.1 christos }
4479 1.1 christos break;
4480 1.1 christos
4481 1.1 christos case bfd_reloc_dangerous:
4482 1.1 christos case bfd_reloc_outofrange:
4483 1.1 christos case bfd_reloc_overflow:
4484 1.1 christos default:
4485 1.1 christos missing_tls_sec:
4486 1.1 christos {
4487 1.1 christos const char *name;
4488 1.1 christos
4489 1.1 christos if (h)
4490 1.1 christos name = h->root.root.string;
4491 1.1 christos else
4492 1.1 christos name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4493 1.1 christos sym_sec);
4494 1.1 christos
4495 1.1 christos switch (r_type)
4496 1.1 christos {
4497 1.1 christos case R_IA64_TPREL14:
4498 1.1 christos case R_IA64_TPREL22:
4499 1.1 christos case R_IA64_TPREL64I:
4500 1.1 christos case R_IA64_DTPREL14:
4501 1.1 christos case R_IA64_DTPREL22:
4502 1.1 christos case R_IA64_DTPREL64I:
4503 1.1 christos case R_IA64_DTPREL32LSB:
4504 1.1.1.4 christos case R_IA64_DTPREL32MSB:
4505 1.1.1.4 christos case R_IA64_DTPREL64LSB:
4506 1.1.1.5 christos case R_IA64_DTPREL64MSB:
4507 1.1.1.5 christos case R_IA64_LTOFF_TPREL22:
4508 1.1.1.4 christos case R_IA64_LTOFF_DTPMOD22:
4509 1.1.1.5 christos case R_IA64_LTOFF_DTPREL22:
4510 1.1 christos _bfd_error_handler
4511 1.1 christos /* xgettext:c-format */
4512 1.1 christos (_("%pB: missing TLS section for relocation %s against `%s'"
4513 1.1 christos " at %#" PRIx64 " in section `%pA'."),
4514 1.1 christos input_bfd, howto->name, name,
4515 1.1 christos (uint64_t) rel->r_offset, input_section);
4516 1.1 christos break;
4517 1.1 christos
4518 1.1 christos case R_IA64_PCREL21B:
4519 1.1 christos case R_IA64_PCREL21BI:
4520 1.1 christos case R_IA64_PCREL21M:
4521 1.1.1.4 christos case R_IA64_PCREL21F:
4522 1.1.1.4 christos if (is_elf_hash_table (info->hash))
4523 1.1.1.5 christos {
4524 1.1.1.5 christos /* Relaxtion is always performed for ELF output.
4525 1.1.1.5 christos Overflow failures for those relocations mean
4526 1.1.1.5 christos that the section is too big to relax. */
4527 1.1.1.5 christos _bfd_error_handler
4528 1.1 christos /* xgettext:c-format */
4529 1.1 christos (_("%pB: Can't relax br (%s) to `%s' at %#" PRIx64
4530 1.1.1.4 christos " in section `%pA' with size %#" PRIx64
4531 1.1 christos " (> 0x1000000)."),
4532 1.1.1.3 christos input_bfd, howto->name, name, (uint64_t) rel->r_offset,
4533 1.1.1.3 christos input_section, (uint64_t) input_section->size);
4534 1.1.1.3 christos break;
4535 1.1.1.3 christos }
4536 1.1.1.3 christos /* Fall through. */
4537 1.1.1.3 christos default:
4538 1.1.1.3 christos (*info->callbacks->reloc_overflow) (info,
4539 1.1.1.3 christos &h->root,
4540 1.1 christos name,
4541 1.1 christos howto->name,
4542 1.1 christos (bfd_vma) 0,
4543 1.1 christos input_bfd,
4544 1.1 christos input_section,
4545 1.1 christos rel->r_offset);
4546 1.1 christos break;
4547 1.1 christos }
4548 1.1 christos
4549 1.1 christos ret_val = FALSE;
4550 1.1 christos }
4551 1.1 christos break;
4552 1.1 christos }
4553 1.1 christos }
4554 1.1 christos
4555 1.1 christos return ret_val;
4556 1.1 christos }
4557 1.1 christos
4558 1.1 christos static bfd_boolean
4559 1.1 christos elfNN_ia64_finish_dynamic_symbol (bfd *output_bfd,
4560 1.1 christos struct bfd_link_info *info,
4561 1.1 christos struct elf_link_hash_entry *h,
4562 1.1 christos Elf_Internal_Sym *sym)
4563 1.1 christos {
4564 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
4565 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
4566 1.1 christos
4567 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
4568 1.1 christos if (ia64_info == NULL)
4569 1.1 christos return FALSE;
4570 1.1 christos
4571 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE);
4572 1.1 christos
4573 1.1 christos /* Fill in the PLT data, if required. */
4574 1.1 christos if (dyn_i && dyn_i->want_plt)
4575 1.1 christos {
4576 1.1 christos Elf_Internal_Rela outrel;
4577 1.1 christos bfd_byte *loc;
4578 1.1 christos asection *plt_sec;
4579 1.1 christos bfd_vma plt_addr, pltoff_addr, gp_val, plt_index;
4580 1.1 christos
4581 1.1 christos gp_val = _bfd_get_gp_value (output_bfd);
4582 1.1 christos
4583 1.1 christos /* Initialize the minimal PLT entry. */
4584 1.1 christos
4585 1.1 christos plt_index = (dyn_i->plt_offset - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
4586 1.1 christos plt_sec = ia64_info->root.splt;
4587 1.1 christos loc = plt_sec->contents + dyn_i->plt_offset;
4588 1.1 christos
4589 1.1 christos memcpy (loc, plt_min_entry, PLT_MIN_ENTRY_SIZE);
4590 1.1 christos ia64_elf_install_value (loc, plt_index, R_IA64_IMM22);
4591 1.1 christos ia64_elf_install_value (loc+2, -dyn_i->plt_offset, R_IA64_PCREL21B);
4592 1.1 christos
4593 1.1 christos plt_addr = (plt_sec->output_section->vma
4594 1.1 christos + plt_sec->output_offset
4595 1.1 christos + dyn_i->plt_offset);
4596 1.1 christos pltoff_addr = set_pltoff_entry (output_bfd, info, dyn_i, plt_addr, TRUE);
4597 1.1 christos
4598 1.1 christos /* Initialize the FULL PLT entry, if needed. */
4599 1.1 christos if (dyn_i->want_plt2)
4600 1.1 christos {
4601 1.1 christos loc = plt_sec->contents + dyn_i->plt2_offset;
4602 1.1 christos
4603 1.1 christos memcpy (loc, plt_full_entry, PLT_FULL_ENTRY_SIZE);
4604 1.1 christos ia64_elf_install_value (loc, pltoff_addr - gp_val, R_IA64_IMM22);
4605 1.1 christos
4606 1.1 christos /* Mark the symbol as undefined, rather than as defined in the
4607 1.1 christos plt section. Leave the value alone. */
4608 1.1 christos /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4609 1.1 christos first place. But perhaps elflink.c did some for us. */
4610 1.1 christos if (!h->def_regular)
4611 1.1 christos sym->st_shndx = SHN_UNDEF;
4612 1.1 christos }
4613 1.1 christos
4614 1.1 christos /* Create the dynamic relocation. */
4615 1.1 christos outrel.r_offset = pltoff_addr;
4616 1.1 christos if (bfd_little_endian (output_bfd))
4617 1.1 christos outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTLSB);
4618 1.1 christos else
4619 1.1 christos outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTMSB);
4620 1.1 christos outrel.r_addend = 0;
4621 1.1 christos
4622 1.1 christos /* This is fun. In the .IA_64.pltoff section, we've got entries
4623 1.1 christos that correspond both to real PLT entries, and those that
4624 1.1 christos happened to resolve to local symbols but need to be created
4625 1.1 christos to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4626 1.1 christos relocations for the real PLT should come at the end of the
4627 1.1 christos section, so that they can be indexed by plt entry at runtime.
4628 1.1 christos
4629 1.1 christos We emitted all of the relocations for the non-PLT @pltoff
4630 1.1 christos entries during relocate_section. So we can consider the
4631 1.1 christos existing sec->reloc_count to be the base of the array of
4632 1.1 christos PLT relocations. */
4633 1.1 christos
4634 1.1 christos loc = ia64_info->rel_pltoff_sec->contents;
4635 1.1.1.2 christos loc += ((ia64_info->rel_pltoff_sec->reloc_count + plt_index)
4636 1.1 christos * sizeof (ElfNN_External_Rela));
4637 1.1 christos bfd_elfNN_swap_reloca_out (output_bfd, &outrel, loc);
4638 1.1 christos }
4639 1.1 christos
4640 1.1 christos /* Mark some specially defined symbols as absolute. */
4641 1.1 christos if (h == ia64_info->root.hdynamic
4642 1.1 christos || h == ia64_info->root.hgot
4643 1.1 christos || h == ia64_info->root.hplt)
4644 1.1 christos sym->st_shndx = SHN_ABS;
4645 1.1 christos
4646 1.1 christos return TRUE;
4647 1.1 christos }
4648 1.1 christos
4649 1.1 christos static bfd_boolean
4650 1.1 christos elfNN_ia64_finish_dynamic_sections (bfd *abfd,
4651 1.1 christos struct bfd_link_info *info)
4652 1.1 christos {
4653 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
4654 1.1 christos bfd *dynobj;
4655 1.1 christos
4656 1.1.1.4 christos ia64_info = elfNN_ia64_hash_table (info);
4657 1.1 christos if (ia64_info == NULL)
4658 1.1 christos return FALSE;
4659 1.1 christos
4660 1.1 christos dynobj = ia64_info->root.dynobj;
4661 1.1 christos
4662 1.1 christos if (ia64_info->root.dynamic_sections_created)
4663 1.1.1.4 christos {
4664 1.1 christos ElfNN_External_Dyn *dyncon, *dynconend;
4665 1.1 christos asection *sdyn, *sgotplt;
4666 1.1 christos bfd_vma gp_val;
4667 1.1 christos
4668 1.1 christos sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4669 1.1 christos sgotplt = ia64_info->root.sgotplt;
4670 1.1 christos BFD_ASSERT (sdyn != NULL);
4671 1.1 christos dyncon = (ElfNN_External_Dyn *) sdyn->contents;
4672 1.1 christos dynconend = (ElfNN_External_Dyn *) (sdyn->contents + sdyn->size);
4673 1.1 christos
4674 1.1 christos gp_val = _bfd_get_gp_value (abfd);
4675 1.1 christos
4676 1.1 christos for (; dyncon < dynconend; dyncon++)
4677 1.1 christos {
4678 1.1 christos Elf_Internal_Dyn dyn;
4679 1.1 christos
4680 1.1 christos bfd_elfNN_swap_dyn_in (dynobj, dyncon, &dyn);
4681 1.1 christos
4682 1.1 christos switch (dyn.d_tag)
4683 1.1 christos {
4684 1.1 christos case DT_PLTGOT:
4685 1.1 christos dyn.d_un.d_ptr = gp_val;
4686 1.1 christos break;
4687 1.1 christos
4688 1.1 christos case DT_PLTRELSZ:
4689 1.1 christos dyn.d_un.d_val = (ia64_info->minplt_entries
4690 1.1 christos * sizeof (ElfNN_External_Rela));
4691 1.1 christos break;
4692 1.1 christos
4693 1.1 christos case DT_JMPREL:
4694 1.1 christos /* See the comment above in finish_dynamic_symbol. */
4695 1.1 christos dyn.d_un.d_ptr = (ia64_info->rel_pltoff_sec->output_section->vma
4696 1.1 christos + ia64_info->rel_pltoff_sec->output_offset
4697 1.1 christos + (ia64_info->rel_pltoff_sec->reloc_count
4698 1.1 christos * sizeof (ElfNN_External_Rela)));
4699 1.1 christos break;
4700 1.1 christos
4701 1.1 christos case DT_IA_64_PLT_RESERVE:
4702 1.1 christos dyn.d_un.d_ptr = (sgotplt->output_section->vma
4703 1.1 christos + sgotplt->output_offset);
4704 1.1 christos break;
4705 1.1 christos }
4706 1.1 christos
4707 1.1 christos bfd_elfNN_swap_dyn_out (abfd, &dyn, dyncon);
4708 1.1 christos }
4709 1.1 christos
4710 1.1 christos /* Initialize the PLT0 entry. */
4711 1.1 christos if (ia64_info->root.splt)
4712 1.1 christos {
4713 1.1 christos bfd_byte *loc = ia64_info->root.splt->contents;
4714 1.1 christos bfd_vma pltres;
4715 1.1 christos
4716 1.1 christos memcpy (loc, plt_header, PLT_HEADER_SIZE);
4717 1.1 christos
4718 1.1 christos pltres = (sgotplt->output_section->vma
4719 1.1 christos + sgotplt->output_offset
4720 1.1 christos - gp_val);
4721 1.1 christos
4722 1.1 christos ia64_elf_install_value (loc+1, pltres, R_IA64_GPREL22);
4723 1.1 christos }
4724 1.1 christos }
4725 1.1 christos
4726 1.1 christos return TRUE;
4727 1.1 christos }
4728 1.1 christos
4729 1.1 christos /* ELF file flag handling: */
4731 1.1 christos
4732 1.1 christos /* Function to keep IA-64 specific file flags. */
4733 1.1 christos static bfd_boolean
4734 1.1 christos elfNN_ia64_set_private_flags (bfd *abfd, flagword flags)
4735 1.1 christos {
4736 1.1 christos BFD_ASSERT (!elf_flags_init (abfd)
4737 1.1 christos || elf_elfheader (abfd)->e_flags == flags);
4738 1.1 christos
4739 1.1.1.6 christos elf_elfheader (abfd)->e_flags = flags;
4740 1.1 christos elf_flags_init (abfd) = TRUE;
4741 1.1.1.4 christos return TRUE;
4742 1.1 christos }
4743 1.1.1.4 christos
4744 1.1 christos /* Merge backend specific data from an object file to the output
4745 1.1 christos object file when linking. */
4746 1.1 christos
4747 1.1 christos static bfd_boolean
4748 1.1.1.6 christos elfNN_ia64_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
4749 1.1.1.6 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 if (!is_ia64_elf (ibfd) || !is_ia64_elf (obfd))
4756 1.1 christos return TRUE;
4757 1.1 christos
4758 1.1 christos in_flags = elf_elfheader (ibfd)->e_flags;
4759 1.1 christos out_flags = elf_elfheader (obfd)->e_flags;
4760 1.1 christos
4761 1.1 christos if (! elf_flags_init (obfd))
4762 1.1 christos {
4763 1.1 christos elf_flags_init (obfd) = TRUE;
4764 1.1 christos elf_elfheader (obfd)->e_flags = in_flags;
4765 1.1 christos
4766 1.1 christos if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
4767 1.1 christos && bfd_get_arch_info (obfd)->the_default)
4768 1.1 christos {
4769 1.1 christos return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
4770 1.1 christos bfd_get_mach (ibfd));
4771 1.1 christos }
4772 1.1 christos
4773 1.1 christos return TRUE;
4774 1.1 christos }
4775 1.1 christos
4776 1.1 christos /* Check flag compatibility. */
4777 1.1 christos if (in_flags == out_flags)
4778 1.1 christos return TRUE;
4779 1.1.1.4 christos
4780 1.1.1.5 christos /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4781 1.1 christos if (!(in_flags & EF_IA_64_REDUCEDFP) && (out_flags & EF_IA_64_REDUCEDFP))
4782 1.1 christos elf_elfheader (obfd)->e_flags &= ~EF_IA_64_REDUCEDFP;
4783 1.1 christos
4784 1.1 christos if ((in_flags & EF_IA_64_TRAPNIL) != (out_flags & EF_IA_64_TRAPNIL))
4785 1.1 christos {
4786 1.1 christos _bfd_error_handler
4787 1.1 christos (_("%pB: linking trap-on-NULL-dereference with non-trapping files"),
4788 1.1.1.4 christos ibfd);
4789 1.1.1.5 christos
4790 1.1 christos bfd_set_error (bfd_error_bad_value);
4791 1.1 christos ok = FALSE;
4792 1.1 christos }
4793 1.1 christos if ((in_flags & EF_IA_64_BE) != (out_flags & EF_IA_64_BE))
4794 1.1 christos {
4795 1.1 christos _bfd_error_handler
4796 1.1 christos (_("%pB: linking big-endian files with little-endian files"),
4797 1.1.1.4 christos ibfd);
4798 1.1.1.5 christos
4799 1.1 christos bfd_set_error (bfd_error_bad_value);
4800 1.1 christos ok = FALSE;
4801 1.1 christos }
4802 1.1 christos if ((in_flags & EF_IA_64_ABI64) != (out_flags & EF_IA_64_ABI64))
4803 1.1 christos {
4804 1.1 christos _bfd_error_handler
4805 1.1 christos (_("%pB: linking 64-bit files with 32-bit files"),
4806 1.1.1.4 christos ibfd);
4807 1.1.1.5 christos
4808 1.1 christos bfd_set_error (bfd_error_bad_value);
4809 1.1 christos ok = FALSE;
4810 1.1 christos }
4811 1.1 christos if ((in_flags & EF_IA_64_CONS_GP) != (out_flags & EF_IA_64_CONS_GP))
4812 1.1 christos {
4813 1.1 christos _bfd_error_handler
4814 1.1 christos (_("%pB: linking constant-gp files with non-constant-gp files"),
4815 1.1 christos ibfd);
4816 1.1.1.4 christos
4817 1.1.1.5 christos bfd_set_error (bfd_error_bad_value);
4818 1.1 christos ok = FALSE;
4819 1.1 christos }
4820 1.1 christos if ((in_flags & EF_IA_64_NOFUNCDESC_CONS_GP)
4821 1.1 christos != (out_flags & EF_IA_64_NOFUNCDESC_CONS_GP))
4822 1.1 christos {
4823 1.1 christos _bfd_error_handler
4824 1.1 christos (_("%pB: linking auto-pic files with non-auto-pic files"),
4825 1.1 christos ibfd);
4826 1.1 christos
4827 1.1 christos bfd_set_error (bfd_error_bad_value);
4828 1.1 christos ok = FALSE;
4829 1.1 christos }
4830 1.1 christos
4831 1.1 christos return ok;
4832 1.1 christos }
4833 1.1 christos
4834 1.1 christos static bfd_boolean
4835 1.1 christos elfNN_ia64_print_private_bfd_data (bfd *abfd, void * ptr)
4836 1.1 christos {
4837 1.1 christos FILE *file = (FILE *) ptr;
4838 1.1 christos flagword flags = elf_elfheader (abfd)->e_flags;
4839 1.1 christos
4840 1.1 christos BFD_ASSERT (abfd != NULL && ptr != NULL);
4841 1.1 christos
4842 1.1 christos fprintf (file, "private flags = %s%s%s%s%s%s%s%s\n",
4843 1.1 christos (flags & EF_IA_64_TRAPNIL) ? "TRAPNIL, " : "",
4844 1.1 christos (flags & EF_IA_64_EXT) ? "EXT, " : "",
4845 1.1 christos (flags & EF_IA_64_BE) ? "BE, " : "LE, ",
4846 1.1 christos (flags & EF_IA_64_REDUCEDFP) ? "REDUCEDFP, " : "",
4847 1.1 christos (flags & EF_IA_64_CONS_GP) ? "CONS_GP, " : "",
4848 1.1 christos (flags & EF_IA_64_NOFUNCDESC_CONS_GP) ? "NOFUNCDESC_CONS_GP, " : "",
4849 1.1 christos (flags & EF_IA_64_ABSOLUTE) ? "ABSOLUTE, " : "",
4850 1.1.1.2 christos (flags & EF_IA_64_ABI64) ? "ABI64" : "ABI32");
4851 1.1.1.2 christos
4852 1.1.1.2 christos _bfd_elf_print_private_bfd_data (abfd, ptr);
4853 1.1 christos return TRUE;
4854 1.1 christos }
4855 1.1 christos
4856 1.1 christos static enum elf_reloc_type_class
4857 1.1 christos elfNN_ia64_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4858 1.1 christos const asection *rel_sec ATTRIBUTE_UNUSED,
4859 1.1 christos const Elf_Internal_Rela *rela)
4860 1.1 christos {
4861 1.1 christos switch ((int) ELFNN_R_TYPE (rela->r_info))
4862 1.1 christos {
4863 1.1 christos case R_IA64_REL32MSB:
4864 1.1 christos case R_IA64_REL32LSB:
4865 1.1 christos case R_IA64_REL64MSB:
4866 1.1 christos case R_IA64_REL64LSB:
4867 1.1 christos return reloc_class_relative;
4868 1.1 christos case R_IA64_IPLTMSB:
4869 1.1 christos case R_IA64_IPLTLSB:
4870 1.1 christos return reloc_class_plt;
4871 1.1 christos case R_IA64_COPY:
4872 1.1 christos return reloc_class_copy;
4873 1.1.1.4 christos default:
4874 1.1 christos return reloc_class_normal;
4875 1.1.1.4 christos }
4876 1.1 christos }
4877 1.1 christos
4878 1.1 christos static const struct bfd_elf_special_section elfNN_ia64_special_sections[] =
4879 1.1 christos {
4880 1.1 christos { STRING_COMMA_LEN (".sbss"), -1, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
4881 1.1 christos { STRING_COMMA_LEN (".sdata"), -1, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
4882 1.1 christos { NULL, 0, 0, 0, 0 }
4883 1.1 christos };
4884 1.1 christos
4885 1.1 christos static bfd_boolean
4886 1.1 christos elfNN_ia64_object_p (bfd *abfd)
4887 1.1 christos {
4888 1.1 christos asection *sec;
4889 1.1 christos asection *group, *unwi, *unw;
4890 1.1 christos flagword flags;
4891 1.1 christos const char *name;
4892 1.1 christos char *unwi_name, *unw_name;
4893 1.1 christos bfd_size_type amt;
4894 1.1 christos
4895 1.1 christos if (abfd->flags & DYNAMIC)
4896 1.1 christos return TRUE;
4897 1.1 christos
4898 1.1 christos /* Flags for fake group section. */
4899 1.1 christos flags = (SEC_LINKER_CREATED | SEC_GROUP | SEC_LINK_ONCE
4900 1.1 christos | SEC_EXCLUDE);
4901 1.1 christos
4902 1.1 christos /* We add a fake section group for each .gnu.linkonce.t.* section,
4903 1.1 christos which isn't in a section group, and its unwind sections. */
4904 1.1 christos for (sec = abfd->sections; sec != NULL; sec = sec->next)
4905 1.1 christos {
4906 1.1 christos if (elf_sec_group (sec) == NULL
4907 1.1 christos && ((sec->flags & (SEC_LINK_ONCE | SEC_CODE | SEC_GROUP))
4908 1.1 christos == (SEC_LINK_ONCE | SEC_CODE))
4909 1.1 christos && CONST_STRNEQ (sec->name, ".gnu.linkonce.t."))
4910 1.1 christos {
4911 1.1 christos name = sec->name + 16;
4912 1.1 christos
4913 1.1 christos amt = strlen (name) + sizeof (".gnu.linkonce.ia64unwi.");
4914 1.1 christos unwi_name = bfd_alloc (abfd, amt);
4915 1.1 christos if (!unwi_name)
4916 1.1 christos return FALSE;
4917 1.1 christos
4918 1.1 christos strcpy (stpcpy (unwi_name, ".gnu.linkonce.ia64unwi."), name);
4919 1.1 christos unwi = bfd_get_section_by_name (abfd, unwi_name);
4920 1.1 christos
4921 1.1 christos amt = strlen (name) + sizeof (".gnu.linkonce.ia64unw.");
4922 1.1 christos unw_name = bfd_alloc (abfd, amt);
4923 1.1 christos if (!unw_name)
4924 1.1 christos return FALSE;
4925 1.1 christos
4926 1.1 christos strcpy (stpcpy (unw_name, ".gnu.linkonce.ia64unw."), name);
4927 1.1 christos unw = bfd_get_section_by_name (abfd, unw_name);
4928 1.1 christos
4929 1.1 christos /* We need to create a fake group section for it and its
4930 1.1 christos unwind sections. */
4931 1.1 christos group = bfd_make_section_anyway_with_flags (abfd, name,
4932 1.1 christos flags);
4933 1.1 christos if (group == NULL)
4934 1.1 christos return FALSE;
4935 1.1 christos
4936 1.1 christos /* Move the fake group section to the beginning. */
4937 1.1 christos bfd_section_list_remove (abfd, group);
4938 1.1 christos bfd_section_list_prepend (abfd, group);
4939 1.1 christos
4940 1.1 christos elf_next_in_group (group) = sec;
4941 1.1 christos
4942 1.1 christos elf_group_name (sec) = name;
4943 1.1 christos elf_next_in_group (sec) = sec;
4944 1.1 christos elf_sec_group (sec) = group;
4945 1.1 christos
4946 1.1 christos if (unwi)
4947 1.1 christos {
4948 1.1 christos elf_group_name (unwi) = name;
4949 1.1 christos elf_next_in_group (unwi) = sec;
4950 1.1 christos elf_next_in_group (sec) = unwi;
4951 1.1 christos elf_sec_group (unwi) = group;
4952 1.1 christos }
4953 1.1 christos
4954 1.1 christos if (unw)
4955 1.1 christos {
4956 1.1 christos elf_group_name (unw) = name;
4957 1.1 christos if (unwi)
4958 1.1 christos {
4959 1.1 christos elf_next_in_group (unw) = elf_next_in_group (unwi);
4960 1.1 christos elf_next_in_group (unwi) = unw;
4961 1.1 christos }
4962 1.1 christos else
4963 1.1 christos {
4964 1.1 christos elf_next_in_group (unw) = sec;
4965 1.1 christos elf_next_in_group (sec) = unw;
4966 1.1 christos }
4967 1.1 christos elf_sec_group (unw) = group;
4968 1.1 christos }
4969 1.1 christos
4970 1.1 christos /* Fake SHT_GROUP section header. */
4971 1.1 christos elf_section_data (group)->this_hdr.bfd_section = group;
4972 1.1 christos elf_section_data (group)->this_hdr.sh_type = SHT_GROUP;
4973 1.1 christos }
4974 1.1.1.2 christos }
4975 1.1.1.2 christos return TRUE;
4976 1.1 christos }
4977 1.1 christos
4978 1.1.1.6 christos static bfd_boolean
4979 1.1.1.6 christos elfNN_ia64_hpux_vec (const bfd_target *vec)
4980 1.1 christos {
4981 1.1.1.6 christos extern const bfd_target ia64_elfNN_hpux_be_vec;
4982 1.1 christos return (vec == &ia64_elfNN_hpux_be_vec);
4983 1.1.1.6 christos }
4984 1.1.1.6 christos
4985 1.1.1.6 christos static bfd_boolean
4986 1.1.1.6 christos elfNN_hpux_init_file_header (bfd *abfd, struct bfd_link_info *info)
4987 1.1 christos {
4988 1.1 christos Elf_Internal_Ehdr *i_ehdrp;
4989 1.1.1.6 christos
4990 1.1 christos if (!_bfd_elf_init_file_header (abfd, info))
4991 1.1 christos return FALSE;
4992 1.1 christos
4993 1.1 christos i_ehdrp = elf_elfheader (abfd);
4994 1.1 christos i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi;
4995 1.1 christos i_ehdrp->e_ident[EI_ABIVERSION] = 1;
4996 1.1 christos return TRUE;
4997 1.1 christos }
4998 1.1 christos
4999 1.1 christos static bfd_boolean
5000 1.1 christos elfNN_hpux_backend_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
5001 1.1 christos asection *sec, int *retval)
5002 1.1 christos {
5003 1.1 christos if (bfd_is_com_section (sec))
5004 1.1 christos {
5005 1.1 christos *retval = SHN_IA_64_ANSI_COMMON;
5006 1.1 christos return TRUE;
5007 1.1 christos }
5008 1.1 christos return FALSE;
5009 1.1 christos }
5010 1.1 christos
5011 1.1 christos static void
5012 1.1 christos elfNN_hpux_backend_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED,
5013 1.1 christos asymbol *asym)
5014 1.1 christos {
5015 1.1 christos elf_symbol_type *elfsym = (elf_symbol_type *) asym;
5016 1.1 christos
5017 1.1 christos switch (elfsym->internal_elf_sym.st_shndx)
5018 1.1 christos {
5019 1.1 christos case SHN_IA_64_ANSI_COMMON:
5020 1.1.1.2 christos asym->section = bfd_com_section_ptr;
5021 1.1 christos asym->value = elfsym->internal_elf_sym.st_size;
5022 1.1.1.2 christos asym->flags &= ~BSF_GLOBAL;
5023 1.1 christos break;
5024 1.1 christos }
5025 1.1 christos }
5026 1.1 christos
5027 1.1 christos #define TARGET_LITTLE_SYM ia64_elfNN_le_vec
5029 1.1 christos #define TARGET_LITTLE_NAME "elfNN-ia64-little"
5030 1.1 christos #define TARGET_BIG_SYM ia64_elfNN_be_vec
5031 1.1 christos #define TARGET_BIG_NAME "elfNN-ia64-big"
5032 1.1 christos #define ELF_ARCH bfd_arch_ia64
5033 1.1 christos #define ELF_TARGET_ID IA64_ELF_DATA
5034 1.1 christos #define ELF_MACHINE_CODE EM_IA_64
5035 1.1 christos #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
5036 1.1 christos #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
5037 1.1 christos #define ELF_MAXPAGESIZE 0x10000 /* 64KB */
5038 1.1 christos #define ELF_COMMONPAGESIZE 0x4000 /* 16KB */
5039 1.1 christos
5040 1.1 christos #define elf_backend_section_from_shdr \
5041 1.1 christos elfNN_ia64_section_from_shdr
5042 1.1 christos #define elf_backend_section_flags \
5043 1.1 christos elfNN_ia64_section_flags
5044 1.1 christos #define elf_backend_fake_sections \
5045 1.1 christos elfNN_ia64_fake_sections
5046 1.1.1.6 christos #define elf_backend_final_write_processing \
5047 1.1.1.6 christos elfNN_ia64_final_write_processing
5048 1.1 christos #define elf_backend_add_symbol_hook \
5049 1.1 christos elfNN_ia64_add_symbol_hook
5050 1.1 christos #define elf_backend_additional_program_headers \
5051 1.1 christos elfNN_ia64_additional_program_headers
5052 1.1 christos #define elf_backend_modify_segment_map \
5053 1.1 christos elfNN_ia64_modify_segment_map
5054 1.1 christos #define elf_backend_modify_headers \
5055 1.1 christos elfNN_ia64_modify_headers
5056 1.1 christos #define elf_info_to_howto \
5057 1.1 christos elfNN_ia64_info_to_howto
5058 1.1 christos
5059 1.1 christos #define bfd_elfNN_bfd_reloc_type_lookup \
5060 1.1 christos ia64_elf_reloc_type_lookup
5061 1.1 christos #define bfd_elfNN_bfd_reloc_name_lookup \
5062 1.1 christos ia64_elf_reloc_name_lookup
5063 1.1 christos #define bfd_elfNN_bfd_is_local_label_name \
5064 1.1 christos elfNN_ia64_is_local_label_name
5065 1.1 christos #define bfd_elfNN_bfd_relax_section \
5066 1.1 christos elfNN_ia64_relax_section
5067 1.1 christos
5068 1.1 christos #define elf_backend_object_p \
5069 1.1 christos elfNN_ia64_object_p
5070 1.1 christos
5071 1.1 christos /* Stuff for the BFD linker: */
5072 1.1 christos #define bfd_elfNN_bfd_link_hash_table_create \
5073 1.1 christos elfNN_ia64_hash_table_create
5074 1.1 christos #define elf_backend_create_dynamic_sections \
5075 1.1.1.5 christos elfNN_ia64_create_dynamic_sections
5076 1.1 christos #define elf_backend_check_relocs \
5077 1.1 christos elfNN_ia64_check_relocs
5078 1.1 christos #define elf_backend_adjust_dynamic_symbol \
5079 1.1 christos elfNN_ia64_adjust_dynamic_symbol
5080 1.1 christos #define elf_backend_size_dynamic_sections \
5081 1.1 christos elfNN_ia64_size_dynamic_sections
5082 1.1 christos #define elf_backend_omit_section_dynsym \
5083 1.1 christos _bfd_elf_omit_section_dynsym_all
5084 1.1 christos #define elf_backend_relocate_section \
5085 1.1 christos elfNN_ia64_relocate_section
5086 1.1 christos #define elf_backend_finish_dynamic_symbol \
5087 1.1 christos elfNN_ia64_finish_dynamic_symbol
5088 1.1 christos #define elf_backend_finish_dynamic_sections \
5089 1.1 christos elfNN_ia64_finish_dynamic_sections
5090 1.1 christos #define bfd_elfNN_bfd_final_link \
5091 1.1 christos elfNN_ia64_final_link
5092 1.1 christos
5093 1.1.1.5 christos #define bfd_elfNN_bfd_merge_private_bfd_data \
5094 1.1 christos elfNN_ia64_merge_private_bfd_data
5095 1.1 christos #define bfd_elfNN_bfd_set_private_flags \
5096 1.1 christos elfNN_ia64_set_private_flags
5097 1.1 christos #define bfd_elfNN_bfd_print_private_bfd_data \
5098 1.1 christos elfNN_ia64_print_private_bfd_data
5099 1.1 christos
5100 1.1 christos #define elf_backend_plt_readonly 1
5101 1.1 christos #define elf_backend_can_gc_sections 1
5102 1.1 christos #define elf_backend_want_plt_sym 0
5103 1.1 christos #define elf_backend_plt_alignment 5
5104 1.1 christos #define elf_backend_got_header_size 0
5105 1.1 christos #define elf_backend_want_got_plt 1
5106 1.1 christos #define elf_backend_may_use_rel_p 1
5107 1.1.1.4 christos #define elf_backend_may_use_rela_p 1
5108 1.1 christos #define elf_backend_default_use_rela_p 1
5109 1.1 christos #define elf_backend_want_dynbss 0
5110 1.1 christos #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
5111 1.1 christos #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
5112 1.1 christos #define elf_backend_fixup_symbol _bfd_elf_link_hash_fixup_symbol
5113 1.1 christos #define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
5114 1.1 christos #define elf_backend_rela_normal 1
5115 1.1 christos #define elf_backend_dtrel_excludes_plt 1
5116 1.1 christos #define elf_backend_special_sections elfNN_ia64_special_sections
5117 1.1 christos #define elf_backend_default_execstack 0
5118 1.1 christos
5119 1.1 christos /* FIXME: PR 290: The Intel C compiler generates SHT_IA_64_UNWIND with
5120 1.1 christos SHF_LINK_ORDER. But it doesn't set the sh_link or sh_info fields.
5121 1.1 christos We don't want to flood users with so many error messages. We turn
5122 1.1 christos off the warning for now. It will be turned on later when the Intel
5123 1.1 christos compiler is fixed. */
5124 1.1 christos #define elf_backend_link_order_error_handler NULL
5125 1.1.1.4 christos
5126 1.1.1.4 christos #include "elfNN-target.h"
5127 1.1.1.4 christos
5128 1.1 christos /* HPUX-specific vectors. */
5129 1.1 christos
5130 1.1 christos #undef TARGET_LITTLE_SYM
5131 1.1.1.6 christos #undef TARGET_LITTLE_NAME
5132 1.1.1.6 christos #undef TARGET_BIG_SYM
5133 1.1 christos #define TARGET_BIG_SYM ia64_elfNN_hpux_be_vec
5134 1.1 christos #undef TARGET_BIG_NAME
5135 1.1 christos #define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
5136 1.1 christos
5137 1.1 christos /* These are HP-UX specific functions. */
5138 1.1 christos
5139 1.1 christos #undef elf_backend_init_file_header
5140 1.1 christos #define elf_backend_init_file_header elfNN_hpux_init_file_header
5141 1.1 christos
5142 1.1 christos #undef elf_backend_section_from_bfd_section
5143 1.1 christos #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
5144 1.1 christos
5145 1.1 christos #undef elf_backend_symbol_processing
5146 1.1 christos #define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
5147 1.1 christos
5148 1.1 christos #undef elf_backend_want_p_paddr_set_to_zero
5149 1.1 christos #define elf_backend_want_p_paddr_set_to_zero 1
5150 1.1 christos
5151 #undef ELF_COMMONPAGESIZE
5152 #undef ELF_OSABI
5153 #define ELF_OSABI ELFOSABI_HPUX
5154
5155 #undef elfNN_bed
5156 #define elfNN_bed elfNN_ia64_hpux_bed
5157
5158 #include "elfNN-target.h"
5159