elfnn-ia64.c revision 1.1.1.4 1 1.1 christos /* IA-64 support for 64-bit ELF
2 1.1.1.4 christos Copyright (C) 1998-2016 Free Software Foundation, Inc.
3 1.1 christos Contributed by David Mosberger-Tang <davidm (at) hpl.hp.com>
4 1.1 christos
5 1.1 christos This file is part of BFD, the Binary File Descriptor library.
6 1.1 christos
7 1.1 christos This program is free software; you can redistribute it and/or modify
8 1.1 christos it under the terms of the GNU General Public License as published by
9 1.1 christos the Free Software Foundation; either version 3 of the License, or
10 1.1 christos (at your option) any later version.
11 1.1 christos
12 1.1 christos This program is distributed in the hope that it will be useful,
13 1.1 christos but WITHOUT ANY WARRANTY; without even the implied warranty of
14 1.1 christos MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 1.1 christos GNU General Public License for more details.
16 1.1 christos
17 1.1 christos You should have received a copy of the GNU General Public License
18 1.1 christos along with this program; if not, write to the Free Software
19 1.1 christos Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 1.1 christos MA 02110-1301, USA. */
21 1.1 christos
22 1.1 christos #include "sysdep.h"
23 1.1 christos #include "bfd.h"
24 1.1 christos #include "libbfd.h"
25 1.1 christos #include "elf-bfd.h"
26 1.1 christos #include "opcode/ia64.h"
27 1.1 christos #include "elf/ia64.h"
28 1.1 christos #include "objalloc.h"
29 1.1 christos #include "hashtab.h"
30 1.1 christos #include "bfd_stdint.h"
31 1.1 christos #include "elfxx-ia64.h"
32 1.1 christos
33 1.1 christos #define ARCH_SIZE NN
34 1.1 christos
35 1.1 christos #if ARCH_SIZE == 64
36 1.1 christos #define LOG_SECTION_ALIGN 3
37 1.1 christos #endif
38 1.1 christos
39 1.1 christos #if ARCH_SIZE == 32
40 1.1 christos #define LOG_SECTION_ALIGN 2
41 1.1 christos #endif
42 1.1 christos
43 1.1 christos typedef struct bfd_hash_entry *(*new_hash_entry_func)
44 1.1 christos (struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
45 1.1 christos
46 1.1 christos /* In dynamically (linker-) created sections, we generally need to keep track
47 1.1 christos of the place a symbol or expression got allocated to. This is done via hash
48 1.1 christos tables that store entries of the following type. */
49 1.1 christos
50 1.1 christos struct elfNN_ia64_dyn_sym_info
51 1.1 christos {
52 1.1 christos /* The addend for which this entry is relevant. */
53 1.1 christos bfd_vma addend;
54 1.1 christos
55 1.1 christos bfd_vma got_offset;
56 1.1 christos bfd_vma fptr_offset;
57 1.1 christos bfd_vma pltoff_offset;
58 1.1 christos bfd_vma plt_offset;
59 1.1 christos bfd_vma plt2_offset;
60 1.1 christos bfd_vma tprel_offset;
61 1.1 christos bfd_vma dtpmod_offset;
62 1.1 christos bfd_vma dtprel_offset;
63 1.1 christos
64 1.1 christos /* The symbol table entry, if any, that this was derived from. */
65 1.1 christos struct elf_link_hash_entry *h;
66 1.1 christos
67 1.1 christos /* Used to count non-got, non-plt relocations for delayed sizing
68 1.1 christos of relocation sections. */
69 1.1 christos struct elfNN_ia64_dyn_reloc_entry
70 1.1 christos {
71 1.1 christos struct elfNN_ia64_dyn_reloc_entry *next;
72 1.1 christos asection *srel;
73 1.1 christos int type;
74 1.1 christos int count;
75 1.1 christos
76 1.1 christos /* Is this reloc against readonly section? */
77 1.1 christos bfd_boolean reltext;
78 1.1 christos } *reloc_entries;
79 1.1 christos
80 1.1 christos /* TRUE when the section contents have been updated. */
81 1.1 christos unsigned got_done : 1;
82 1.1 christos unsigned fptr_done : 1;
83 1.1 christos unsigned pltoff_done : 1;
84 1.1 christos unsigned tprel_done : 1;
85 1.1 christos unsigned dtpmod_done : 1;
86 1.1 christos unsigned dtprel_done : 1;
87 1.1 christos
88 1.1 christos /* TRUE for the different kinds of linker data we want created. */
89 1.1 christos unsigned want_got : 1;
90 1.1 christos unsigned want_gotx : 1;
91 1.1 christos unsigned want_fptr : 1;
92 1.1 christos unsigned want_ltoff_fptr : 1;
93 1.1 christos unsigned want_plt : 1;
94 1.1 christos unsigned want_plt2 : 1;
95 1.1 christos unsigned want_pltoff : 1;
96 1.1 christos unsigned want_tprel : 1;
97 1.1 christos unsigned want_dtpmod : 1;
98 1.1 christos unsigned want_dtprel : 1;
99 1.1 christos };
100 1.1 christos
101 1.1 christos struct elfNN_ia64_local_hash_entry
102 1.1 christos {
103 1.1 christos int id;
104 1.1 christos unsigned int r_sym;
105 1.1 christos /* The number of elements in elfNN_ia64_dyn_sym_info array. */
106 1.1 christos unsigned int count;
107 1.1 christos /* The number of sorted elements in elfNN_ia64_dyn_sym_info array. */
108 1.1 christos unsigned int sorted_count;
109 1.1 christos /* The size of elfNN_ia64_dyn_sym_info array. */
110 1.1 christos unsigned int size;
111 1.1 christos /* The array of elfNN_ia64_dyn_sym_info. */
112 1.1 christos struct elfNN_ia64_dyn_sym_info *info;
113 1.1 christos
114 1.1 christos /* TRUE if this hash entry's addends was translated for
115 1.1 christos SHF_MERGE optimization. */
116 1.1 christos unsigned sec_merge_done : 1;
117 1.1 christos };
118 1.1 christos
119 1.1 christos struct elfNN_ia64_link_hash_entry
120 1.1 christos {
121 1.1 christos struct elf_link_hash_entry root;
122 1.1 christos /* The number of elements in elfNN_ia64_dyn_sym_info array. */
123 1.1 christos unsigned int count;
124 1.1 christos /* The number of sorted elements in elfNN_ia64_dyn_sym_info array. */
125 1.1 christos unsigned int sorted_count;
126 1.1 christos /* The size of elfNN_ia64_dyn_sym_info array. */
127 1.1 christos unsigned int size;
128 1.1 christos /* The array of elfNN_ia64_dyn_sym_info. */
129 1.1 christos struct elfNN_ia64_dyn_sym_info *info;
130 1.1 christos };
131 1.1 christos
132 1.1 christos struct elfNN_ia64_link_hash_table
133 1.1 christos {
134 1.1 christos /* The main hash table. */
135 1.1 christos struct elf_link_hash_table root;
136 1.1 christos
137 1.1 christos asection *fptr_sec; /* Function descriptor table (or NULL). */
138 1.1 christos asection *rel_fptr_sec; /* Dynamic relocation section for same. */
139 1.1 christos asection *pltoff_sec; /* Private descriptors for plt (or NULL). */
140 1.1 christos asection *rel_pltoff_sec; /* Dynamic relocation section for same. */
141 1.1 christos
142 1.1 christos bfd_size_type minplt_entries; /* Number of minplt entries. */
143 1.1 christos unsigned reltext : 1; /* Are there relocs against readonly sections? */
144 1.1 christos unsigned self_dtpmod_done : 1;/* Has self DTPMOD entry been finished? */
145 1.1 christos bfd_vma self_dtpmod_offset; /* .got offset to self DTPMOD entry. */
146 1.1 christos /* There are maybe R_IA64_GPREL22 relocations, including those
147 1.1 christos optimized from R_IA64_LTOFF22X, against non-SHF_IA_64_SHORT
148 1.1 christos sections. We need to record those sections so that we can choose
149 1.1 christos a proper GP to cover all R_IA64_GPREL22 relocations. */
150 1.1 christos asection *max_short_sec; /* Maximum short output section. */
151 1.1 christos bfd_vma max_short_offset; /* Maximum short offset. */
152 1.1 christos asection *min_short_sec; /* Minimum short output section. */
153 1.1 christos bfd_vma min_short_offset; /* Minimum short offset. */
154 1.1 christos
155 1.1 christos htab_t loc_hash_table;
156 1.1 christos void *loc_hash_memory;
157 1.1 christos };
158 1.1 christos
159 1.1 christos struct elfNN_ia64_allocate_data
160 1.1 christos {
161 1.1 christos struct bfd_link_info *info;
162 1.1 christos bfd_size_type ofs;
163 1.1 christos bfd_boolean only_got;
164 1.1 christos };
165 1.1 christos
166 1.1 christos #define elfNN_ia64_hash_table(p) \
167 1.1 christos (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
168 1.1 christos == IA64_ELF_DATA ? ((struct elfNN_ia64_link_hash_table *) ((p)->hash)) : NULL)
169 1.1 christos
170 1.1 christos static struct elfNN_ia64_dyn_sym_info * get_dyn_sym_info
171 1.1 christos (struct elfNN_ia64_link_hash_table *ia64_info,
172 1.1 christos struct elf_link_hash_entry *h,
173 1.1 christos bfd *abfd, const Elf_Internal_Rela *rel, bfd_boolean create);
174 1.1 christos static bfd_boolean elfNN_ia64_dynamic_symbol_p
175 1.1 christos (struct elf_link_hash_entry *h, struct bfd_link_info *info, int);
176 1.1 christos static bfd_boolean elfNN_ia64_choose_gp
177 1.1 christos (bfd *abfd, struct bfd_link_info *info, bfd_boolean final);
178 1.1 christos static void elfNN_ia64_dyn_sym_traverse
179 1.1 christos (struct elfNN_ia64_link_hash_table *ia64_info,
180 1.1 christos bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, void *),
181 1.1 christos void * info);
182 1.1 christos static bfd_boolean allocate_global_data_got
183 1.1 christos (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
184 1.1 christos static bfd_boolean allocate_global_fptr_got
185 1.1 christos (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
186 1.1 christos static bfd_boolean allocate_local_got
187 1.1 christos (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
188 1.1 christos static bfd_boolean elfNN_ia64_hpux_vec
189 1.1 christos (const bfd_target *vec);
190 1.1 christos static bfd_boolean allocate_dynrel_entries
191 1.1 christos (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data);
192 1.1 christos static asection *get_pltoff
193 1.1 christos (bfd *abfd, struct bfd_link_info *info,
194 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info);
195 1.1 christos
196 1.1 christos /* ia64-specific relocation. */
198 1.1 christos
199 1.1 christos /* Given a ELF reloc, return the matching HOWTO structure. */
200 1.1 christos
201 1.1 christos static void
202 1.1 christos elfNN_ia64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
203 1.1 christos arelent *bfd_reloc,
204 1.1 christos Elf_Internal_Rela *elf_reloc)
205 1.1 christos {
206 1.1 christos bfd_reloc->howto
207 1.1 christos = ia64_elf_lookup_howto ((unsigned int) ELFNN_R_TYPE (elf_reloc->r_info));
208 1.1 christos }
209 1.1 christos
210 1.1 christos #define PLT_HEADER_SIZE (3 * 16)
212 1.1 christos #define PLT_MIN_ENTRY_SIZE (1 * 16)
213 1.1 christos #define PLT_FULL_ENTRY_SIZE (2 * 16)
214 1.1 christos #define PLT_RESERVED_WORDS 3
215 1.1 christos
216 1.1 christos static const bfd_byte plt_header[PLT_HEADER_SIZE] =
217 1.1 christos {
218 1.1 christos 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
219 1.1 christos 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
220 1.1 christos 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
221 1.1 christos 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
222 1.1 christos 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
223 1.1 christos 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
224 1.1 christos 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
225 1.1 christos 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
226 1.1 christos 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
227 1.1 christos };
228 1.1 christos
229 1.1 christos static const bfd_byte plt_min_entry[PLT_MIN_ENTRY_SIZE] =
230 1.1 christos {
231 1.1 christos 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
232 1.1 christos 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
233 1.1 christos 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
234 1.1 christos };
235 1.1 christos
236 1.1 christos static const bfd_byte plt_full_entry[PLT_FULL_ENTRY_SIZE] =
237 1.1 christos {
238 1.1 christos 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
239 1.1 christos 0x00, 0x41, 0x3c, 0x70, 0x29, 0xc0, /* ld8.acq r16=[r15],8*/
240 1.1 christos 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
241 1.1 christos 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
242 1.1 christos 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
243 1.1 christos 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
244 1.1 christos };
245 1.1 christos
246 1.1 christos #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
247 1.1 christos
248 1.1 christos static const bfd_byte oor_brl[16] =
249 1.1 christos {
250 1.1 christos 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
251 1.1 christos 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
252 1.1 christos 0x00, 0x00, 0x00, 0xc0
253 1.1 christos };
254 1.1 christos
255 1.1 christos static const bfd_byte oor_ip[48] =
256 1.1 christos {
257 1.1 christos 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
258 1.1 christos 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */
259 1.1 christos 0x01, 0x00, 0x00, 0x60,
260 1.1 christos 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */
261 1.1 christos 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */
262 1.1 christos 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */
263 1.1 christos 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */
264 1.1 christos 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
265 1.1 christos 0x60, 0x00, 0x80, 0x00 /* br b6;; */
266 1.1 christos };
267 1.1 christos
268 1.1 christos static size_t oor_branch_size = sizeof (oor_brl);
269 1.1 christos
270 1.1 christos void
271 1.1 christos bfd_elfNN_ia64_after_parse (int itanium)
272 1.1 christos {
273 1.1 christos oor_branch_size = itanium ? sizeof (oor_ip) : sizeof (oor_brl);
274 1.1 christos }
275 1.1 christos
276 1.1 christos
278 1.1 christos /* Rename some of the generic section flags to better document how they
279 1.1 christos are used here. */
280 1.1 christos #define skip_relax_pass_0 sec_flg0
281 1.1 christos #define skip_relax_pass_1 sec_flg1
282 1.1 christos
283 1.1 christos /* These functions do relaxation for IA-64 ELF. */
284 1.1 christos
285 1.1 christos static void
286 1.1 christos elfNN_ia64_update_short_info (asection *sec, bfd_vma offset,
287 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info)
288 1.1 christos {
289 1.1 christos /* Skip ABS and SHF_IA_64_SHORT sections. */
290 1.1 christos if (sec == bfd_abs_section_ptr
291 1.1 christos || (sec->flags & SEC_SMALL_DATA) != 0)
292 1.1 christos return;
293 1.1 christos
294 1.1 christos if (!ia64_info->min_short_sec)
295 1.1 christos {
296 1.1 christos ia64_info->max_short_sec = sec;
297 1.1 christos ia64_info->max_short_offset = offset;
298 1.1 christos ia64_info->min_short_sec = sec;
299 1.1 christos ia64_info->min_short_offset = offset;
300 1.1 christos }
301 1.1 christos else if (sec == ia64_info->max_short_sec
302 1.1 christos && offset > ia64_info->max_short_offset)
303 1.1 christos ia64_info->max_short_offset = offset;
304 1.1 christos else if (sec == ia64_info->min_short_sec
305 1.1 christos && offset < ia64_info->min_short_offset)
306 1.1 christos ia64_info->min_short_offset = offset;
307 1.1 christos else if (sec->output_section->vma
308 1.1 christos > ia64_info->max_short_sec->vma)
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 }
313 1.1 christos else if (sec->output_section->vma
314 1.1 christos < ia64_info->min_short_sec->vma)
315 1.1 christos {
316 1.1 christos ia64_info->min_short_sec = sec;
317 1.1 christos ia64_info->min_short_offset = offset;
318 1.1 christos }
319 1.1 christos }
320 1.1 christos
321 1.1 christos static bfd_boolean
322 1.1 christos elfNN_ia64_relax_section (bfd *abfd, asection *sec,
323 1.1 christos struct bfd_link_info *link_info,
324 1.1 christos bfd_boolean *again)
325 1.1 christos {
326 1.1 christos struct one_fixup
327 1.1 christos {
328 1.1 christos struct one_fixup *next;
329 1.1 christos asection *tsec;
330 1.1 christos bfd_vma toff;
331 1.1 christos bfd_vma trampoff;
332 1.1 christos };
333 1.1 christos
334 1.1 christos Elf_Internal_Shdr *symtab_hdr;
335 1.1 christos Elf_Internal_Rela *internal_relocs;
336 1.1 christos Elf_Internal_Rela *irel, *irelend;
337 1.1 christos bfd_byte *contents;
338 1.1 christos Elf_Internal_Sym *isymbuf = NULL;
339 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
340 1.1 christos struct one_fixup *fixups = NULL;
341 1.1 christos bfd_boolean changed_contents = FALSE;
342 1.1 christos bfd_boolean changed_relocs = FALSE;
343 1.1 christos bfd_boolean changed_got = FALSE;
344 1.1 christos bfd_boolean skip_relax_pass_0 = TRUE;
345 1.1 christos bfd_boolean skip_relax_pass_1 = TRUE;
346 1.1 christos bfd_vma gp = 0;
347 1.1 christos
348 1.1 christos /* Assume we're not going to change any sizes, and we'll only need
349 1.1.1.4 christos one pass. */
350 1.1 christos *again = FALSE;
351 1.1 christos
352 1.1 christos if (bfd_link_relocatable (link_info))
353 1.1 christos (*link_info->callbacks->einfo)
354 1.1 christos (_("%P%F: --relax and -r may not be used together\n"));
355 1.1 christos
356 1.1 christos /* Don't even try to relax for non-ELF outputs. */
357 1.1 christos if (!is_elf_hash_table (link_info->hash))
358 1.1 christos return FALSE;
359 1.1 christos
360 1.1 christos /* Nothing to do if there are no relocations or there is no need for
361 1.1 christos the current pass. */
362 1.1 christos if ((sec->flags & SEC_RELOC) == 0
363 1.1 christos || sec->reloc_count == 0
364 1.1 christos || (link_info->relax_pass == 0 && sec->skip_relax_pass_0)
365 1.1 christos || (link_info->relax_pass == 1 && sec->skip_relax_pass_1))
366 1.1 christos return TRUE;
367 1.1 christos
368 1.1 christos ia64_info = elfNN_ia64_hash_table (link_info);
369 1.1 christos if (ia64_info == NULL)
370 1.1 christos return FALSE;
371 1.1 christos
372 1.1 christos symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
373 1.1 christos
374 1.1 christos /* Load the relocations for this section. */
375 1.1 christos internal_relocs = (_bfd_elf_link_read_relocs
376 1.1 christos (abfd, sec, NULL, (Elf_Internal_Rela *) NULL,
377 1.1 christos link_info->keep_memory));
378 1.1 christos if (internal_relocs == NULL)
379 1.1 christos return FALSE;
380 1.1 christos
381 1.1 christos irelend = internal_relocs + sec->reloc_count;
382 1.1 christos
383 1.1 christos /* Get the section contents. */
384 1.1 christos if (elf_section_data (sec)->this_hdr.contents != NULL)
385 1.1 christos contents = elf_section_data (sec)->this_hdr.contents;
386 1.1 christos else
387 1.1 christos {
388 1.1 christos if (!bfd_malloc_and_get_section (abfd, sec, &contents))
389 1.1 christos goto error_return;
390 1.1 christos }
391 1.1 christos
392 1.1 christos for (irel = internal_relocs; irel < irelend; irel++)
393 1.1 christos {
394 1.1 christos unsigned long r_type = ELFNN_R_TYPE (irel->r_info);
395 1.1 christos bfd_vma symaddr, reladdr, trampoff, toff, roff;
396 1.1 christos asection *tsec;
397 1.1 christos struct one_fixup *f;
398 1.1 christos bfd_size_type amt;
399 1.1 christos bfd_boolean is_branch;
400 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
401 1.1 christos char symtype;
402 1.1 christos
403 1.1 christos switch (r_type)
404 1.1 christos {
405 1.1 christos case R_IA64_PCREL21B:
406 1.1 christos case R_IA64_PCREL21BI:
407 1.1 christos case R_IA64_PCREL21M:
408 1.1 christos case R_IA64_PCREL21F:
409 1.1 christos /* In pass 1, all br relaxations are done. We can skip it. */
410 1.1 christos if (link_info->relax_pass == 1)
411 1.1 christos continue;
412 1.1 christos skip_relax_pass_0 = FALSE;
413 1.1 christos is_branch = TRUE;
414 1.1 christos break;
415 1.1 christos
416 1.1 christos case R_IA64_PCREL60B:
417 1.1 christos /* We can't optimize brl to br in pass 0 since br relaxations
418 1.1 christos will increase the code size. Defer it to pass 1. */
419 1.1 christos if (link_info->relax_pass == 0)
420 1.1 christos {
421 1.1 christos skip_relax_pass_1 = FALSE;
422 1.1 christos continue;
423 1.1 christos }
424 1.1 christos is_branch = TRUE;
425 1.1 christos break;
426 1.1 christos
427 1.1 christos case R_IA64_GPREL22:
428 1.1 christos /* Update max_short_sec/min_short_sec. */
429 1.1 christos
430 1.1 christos case R_IA64_LTOFF22X:
431 1.1 christos case R_IA64_LDXMOV:
432 1.1 christos /* We can't relax ldx/mov in pass 0 since br relaxations will
433 1.1 christos increase the code size. Defer it to pass 1. */
434 1.1 christos if (link_info->relax_pass == 0)
435 1.1 christos {
436 1.1 christos skip_relax_pass_1 = FALSE;
437 1.1 christos continue;
438 1.1 christos }
439 1.1 christos is_branch = FALSE;
440 1.1 christos break;
441 1.1 christos
442 1.1 christos default:
443 1.1 christos continue;
444 1.1 christos }
445 1.1 christos
446 1.1 christos /* Get the value of the symbol referred to by the reloc. */
447 1.1 christos if (ELFNN_R_SYM (irel->r_info) < symtab_hdr->sh_info)
448 1.1 christos {
449 1.1 christos /* A local symbol. */
450 1.1 christos Elf_Internal_Sym *isym;
451 1.1 christos
452 1.1 christos /* Read this BFD's local symbols. */
453 1.1 christos if (isymbuf == NULL)
454 1.1 christos {
455 1.1 christos isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
456 1.1 christos if (isymbuf == NULL)
457 1.1 christos isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
458 1.1 christos symtab_hdr->sh_info, 0,
459 1.1 christos NULL, NULL, NULL);
460 1.1 christos if (isymbuf == 0)
461 1.1 christos goto error_return;
462 1.1 christos }
463 1.1 christos
464 1.1 christos isym = isymbuf + ELFNN_R_SYM (irel->r_info);
465 1.1 christos if (isym->st_shndx == SHN_UNDEF)
466 1.1 christos continue; /* We can't do anything with undefined symbols. */
467 1.1 christos else if (isym->st_shndx == SHN_ABS)
468 1.1 christos tsec = bfd_abs_section_ptr;
469 1.1 christos else if (isym->st_shndx == SHN_COMMON)
470 1.1 christos tsec = bfd_com_section_ptr;
471 1.1 christos else if (isym->st_shndx == SHN_IA_64_ANSI_COMMON)
472 1.1 christos tsec = bfd_com_section_ptr;
473 1.1 christos else
474 1.1 christos tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
475 1.1 christos
476 1.1 christos toff = isym->st_value;
477 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, NULL, abfd, irel, FALSE);
478 1.1 christos symtype = ELF_ST_TYPE (isym->st_info);
479 1.1 christos }
480 1.1 christos else
481 1.1 christos {
482 1.1 christos unsigned long indx;
483 1.1 christos struct elf_link_hash_entry *h;
484 1.1 christos
485 1.1 christos indx = ELFNN_R_SYM (irel->r_info) - symtab_hdr->sh_info;
486 1.1 christos h = elf_sym_hashes (abfd)[indx];
487 1.1 christos BFD_ASSERT (h != NULL);
488 1.1 christos
489 1.1 christos while (h->root.type == bfd_link_hash_indirect
490 1.1 christos || h->root.type == bfd_link_hash_warning)
491 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
492 1.1 christos
493 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, abfd, irel, FALSE);
494 1.1 christos
495 1.1 christos /* For branches to dynamic symbols, we're interested instead
496 1.1 christos in a branch to the PLT entry. */
497 1.1 christos if (is_branch && dyn_i && dyn_i->want_plt2)
498 1.1 christos {
499 1.1 christos /* Internal branches shouldn't be sent to the PLT.
500 1.1 christos Leave this for now and we'll give an error later. */
501 1.1 christos if (r_type != R_IA64_PCREL21B)
502 1.1 christos continue;
503 1.1 christos
504 1.1 christos tsec = ia64_info->root.splt;
505 1.1 christos toff = dyn_i->plt2_offset;
506 1.1 christos BFD_ASSERT (irel->r_addend == 0);
507 1.1 christos }
508 1.1 christos
509 1.1 christos /* Can't do anything else with dynamic symbols. */
510 1.1 christos else if (elfNN_ia64_dynamic_symbol_p (h, link_info, r_type))
511 1.1 christos continue;
512 1.1 christos
513 1.1 christos else
514 1.1 christos {
515 1.1 christos /* We can't do anything with undefined symbols. */
516 1.1 christos if (h->root.type == bfd_link_hash_undefined
517 1.1 christos || h->root.type == bfd_link_hash_undefweak)
518 1.1 christos continue;
519 1.1 christos
520 1.1 christos tsec = h->root.u.def.section;
521 1.1 christos toff = h->root.u.def.value;
522 1.1 christos }
523 1.1 christos
524 1.1 christos symtype = h->type;
525 1.1 christos }
526 1.1 christos
527 1.1 christos if (tsec->sec_info_type == SEC_INFO_TYPE_MERGE)
528 1.1 christos {
529 1.1 christos /* At this stage in linking, no SEC_MERGE symbol has been
530 1.1 christos adjusted, so all references to such symbols need to be
531 1.1 christos passed through _bfd_merged_section_offset. (Later, in
532 1.1 christos relocate_section, all SEC_MERGE symbols *except* for
533 1.1 christos section symbols have been adjusted.)
534 1.1 christos
535 1.1 christos gas may reduce relocations against symbols in SEC_MERGE
536 1.1 christos sections to a relocation against the section symbol when
537 1.1 christos the original addend was zero. When the reloc is against
538 1.1 christos a section symbol we should include the addend in the
539 1.1 christos offset passed to _bfd_merged_section_offset, since the
540 1.1 christos location of interest is the original symbol. On the
541 1.1 christos other hand, an access to "sym+addend" where "sym" is not
542 1.1 christos a section symbol should not include the addend; Such an
543 1.1 christos access is presumed to be an offset from "sym"; The
544 1.1 christos location of interest is just "sym". */
545 1.1 christos if (symtype == STT_SECTION)
546 1.1 christos toff += irel->r_addend;
547 1.1 christos
548 1.1 christos toff = _bfd_merged_section_offset (abfd, &tsec,
549 1.1 christos elf_section_data (tsec)->sec_info,
550 1.1 christos toff);
551 1.1 christos
552 1.1 christos if (symtype != STT_SECTION)
553 1.1 christos toff += irel->r_addend;
554 1.1 christos }
555 1.1 christos else
556 1.1 christos toff += irel->r_addend;
557 1.1 christos
558 1.1 christos symaddr = tsec->output_section->vma + tsec->output_offset + toff;
559 1.1 christos
560 1.1 christos roff = irel->r_offset;
561 1.1 christos
562 1.1 christos if (is_branch)
563 1.1 christos {
564 1.1 christos bfd_signed_vma offset;
565 1.1 christos
566 1.1 christos reladdr = (sec->output_section->vma
567 1.1 christos + sec->output_offset
568 1.1 christos + roff) & (bfd_vma) -4;
569 1.1 christos
570 1.1 christos /* The .plt section is aligned at 32byte and the .text section
571 1.1 christos is aligned at 64byte. The .text section is right after the
572 1.1 christos .plt section. After the first relaxation pass, linker may
573 1.1 christos increase the gap between the .plt and .text sections up
574 1.1 christos to 32byte. We assume linker will always insert 32byte
575 1.1 christos between the .plt and .text sections after the first
576 1.1 christos relaxation pass. */
577 1.1 christos if (tsec == ia64_info->root.splt)
578 1.1 christos offset = -0x1000000 + 32;
579 1.1 christos else
580 1.1 christos offset = -0x1000000;
581 1.1 christos
582 1.1 christos /* If the branch is in range, no need to do anything. */
583 1.1 christos if ((bfd_signed_vma) (symaddr - reladdr) >= offset
584 1.1 christos && (bfd_signed_vma) (symaddr - reladdr) <= 0x0FFFFF0)
585 1.1 christos {
586 1.1 christos /* If the 60-bit branch is in 21-bit range, optimize it. */
587 1.1 christos if (r_type == R_IA64_PCREL60B)
588 1.1 christos {
589 1.1 christos ia64_elf_relax_brl (contents, roff);
590 1.1 christos
591 1.1 christos irel->r_info
592 1.1 christos = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
593 1.1 christos R_IA64_PCREL21B);
594 1.1 christos
595 1.1 christos /* If the original relocation offset points to slot
596 1.1 christos 1, change it to slot 2. */
597 1.1 christos if ((irel->r_offset & 3) == 1)
598 1.1 christos irel->r_offset += 1;
599 1.1 christos }
600 1.1 christos
601 1.1 christos continue;
602 1.1 christos }
603 1.1 christos else if (r_type == R_IA64_PCREL60B)
604 1.1 christos continue;
605 1.1 christos else if (ia64_elf_relax_br (contents, roff))
606 1.1 christos {
607 1.1 christos irel->r_info
608 1.1 christos = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
609 1.1 christos R_IA64_PCREL60B);
610 1.1 christos
611 1.1 christos /* Make the relocation offset point to slot 1. */
612 1.1 christos irel->r_offset = (irel->r_offset & ~((bfd_vma) 0x3)) + 1;
613 1.1 christos continue;
614 1.1 christos }
615 1.1 christos
616 1.1 christos /* We can't put a trampoline in a .init/.fini section. Issue
617 1.1 christos an error. */
618 1.1 christos if (strcmp (sec->output_section->name, ".init") == 0
619 1.1 christos || strcmp (sec->output_section->name, ".fini") == 0)
620 1.1 christos {
621 1.1 christos (*_bfd_error_handler)
622 1.1 christos (_("%B: Can't relax br at 0x%lx in section `%A'. Please use brl or indirect branch."),
623 1.1 christos sec->owner, sec, (unsigned long) roff);
624 1.1 christos bfd_set_error (bfd_error_bad_value);
625 1.1 christos goto error_return;
626 1.1 christos }
627 1.1 christos
628 1.1 christos /* If the branch and target are in the same section, you've
629 1.1 christos got one honking big section and we can't help you unless
630 1.1 christos you are branching backwards. You'll get an error message
631 1.1 christos later. */
632 1.1 christos if (tsec == sec && toff > roff)
633 1.1 christos continue;
634 1.1 christos
635 1.1 christos /* Look for an existing fixup to this address. */
636 1.1 christos for (f = fixups; f ; f = f->next)
637 1.1 christos if (f->tsec == tsec && f->toff == toff)
638 1.1 christos break;
639 1.1 christos
640 1.1 christos if (f == NULL)
641 1.1 christos {
642 1.1 christos /* Two alternatives: If it's a branch to a PLT entry, we can
643 1.1 christos make a copy of the FULL_PLT entry. Otherwise, we'll have
644 1.1 christos to use a `brl' insn to get where we're going. */
645 1.1 christos
646 1.1 christos size_t size;
647 1.1 christos
648 1.1 christos if (tsec == ia64_info->root.splt)
649 1.1 christos size = sizeof (plt_full_entry);
650 1.1 christos else
651 1.1 christos size = oor_branch_size;
652 1.1 christos
653 1.1 christos /* Resize the current section to make room for the new branch. */
654 1.1 christos trampoff = (sec->size + 15) & (bfd_vma) -16;
655 1.1 christos
656 1.1 christos /* If trampoline is out of range, there is nothing we
657 1.1 christos can do. */
658 1.1 christos offset = trampoff - (roff & (bfd_vma) -4);
659 1.1 christos if (offset < -0x1000000 || offset > 0x0FFFFF0)
660 1.1 christos continue;
661 1.1 christos
662 1.1 christos amt = trampoff + size;
663 1.1 christos contents = (bfd_byte *) bfd_realloc (contents, amt);
664 1.1 christos if (contents == NULL)
665 1.1 christos goto error_return;
666 1.1 christos sec->size = amt;
667 1.1 christos
668 1.1 christos if (tsec == ia64_info->root.splt)
669 1.1 christos {
670 1.1 christos memcpy (contents + trampoff, plt_full_entry, size);
671 1.1 christos
672 1.1 christos /* Hijack the old relocation for use as the PLTOFF reloc. */
673 1.1 christos irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
674 1.1 christos R_IA64_PLTOFF22);
675 1.1 christos irel->r_offset = trampoff;
676 1.1 christos }
677 1.1 christos else
678 1.1 christos {
679 1.1 christos if (size == sizeof (oor_ip))
680 1.1 christos {
681 1.1 christos memcpy (contents + trampoff, oor_ip, size);
682 1.1 christos irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
683 1.1 christos R_IA64_PCREL64I);
684 1.1 christos irel->r_addend -= 16;
685 1.1 christos irel->r_offset = trampoff + 2;
686 1.1 christos }
687 1.1 christos else
688 1.1 christos {
689 1.1 christos memcpy (contents + trampoff, oor_brl, size);
690 1.1 christos irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
691 1.1 christos R_IA64_PCREL60B);
692 1.1 christos irel->r_offset = trampoff + 2;
693 1.1 christos }
694 1.1 christos
695 1.1 christos }
696 1.1 christos
697 1.1 christos /* Record the fixup so we don't do it again this section. */
698 1.1 christos f = (struct one_fixup *)
699 1.1 christos bfd_malloc ((bfd_size_type) sizeof (*f));
700 1.1 christos f->next = fixups;
701 1.1 christos f->tsec = tsec;
702 1.1 christos f->toff = toff;
703 1.1 christos f->trampoff = trampoff;
704 1.1 christos fixups = f;
705 1.1 christos }
706 1.1 christos else
707 1.1 christos {
708 1.1 christos /* If trampoline is out of range, there is nothing we
709 1.1 christos can do. */
710 1.1 christos offset = f->trampoff - (roff & (bfd_vma) -4);
711 1.1 christos if (offset < -0x1000000 || offset > 0x0FFFFF0)
712 1.1 christos continue;
713 1.1 christos
714 1.1 christos /* Nop out the reloc, since we're finalizing things here. */
715 1.1 christos irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
716 1.1 christos }
717 1.1 christos
718 1.1 christos /* Fix up the existing branch to hit the trampoline. */
719 1.1 christos if (ia64_elf_install_value (contents + roff, offset, r_type)
720 1.1 christos != bfd_reloc_ok)
721 1.1 christos goto error_return;
722 1.1 christos
723 1.1 christos changed_contents = TRUE;
724 1.1 christos changed_relocs = TRUE;
725 1.1 christos }
726 1.1 christos else
727 1.1 christos {
728 1.1 christos /* Fetch the gp. */
729 1.1 christos if (gp == 0)
730 1.1 christos {
731 1.1 christos bfd *obfd = sec->output_section->owner;
732 1.1 christos gp = _bfd_get_gp_value (obfd);
733 1.1 christos if (gp == 0)
734 1.1 christos {
735 1.1 christos if (!elfNN_ia64_choose_gp (obfd, link_info, FALSE))
736 1.1 christos goto error_return;
737 1.1 christos gp = _bfd_get_gp_value (obfd);
738 1.1 christos }
739 1.1 christos }
740 1.1 christos
741 1.1 christos /* If the data is out of range, do nothing. */
742 1.1 christos if ((bfd_signed_vma) (symaddr - gp) >= 0x200000
743 1.1 christos ||(bfd_signed_vma) (symaddr - gp) < -0x200000)
744 1.1 christos continue;
745 1.1 christos
746 1.1 christos if (r_type == R_IA64_GPREL22)
747 1.1 christos elfNN_ia64_update_short_info (tsec->output_section,
748 1.1 christos tsec->output_offset + toff,
749 1.1 christos ia64_info);
750 1.1 christos else if (r_type == R_IA64_LTOFF22X)
751 1.1 christos {
752 1.1 christos irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
753 1.1 christos R_IA64_GPREL22);
754 1.1 christos changed_relocs = TRUE;
755 1.1 christos if (dyn_i->want_gotx)
756 1.1 christos {
757 1.1 christos dyn_i->want_gotx = 0;
758 1.1 christos changed_got |= !dyn_i->want_got;
759 1.1 christos }
760 1.1 christos
761 1.1 christos elfNN_ia64_update_short_info (tsec->output_section,
762 1.1 christos tsec->output_offset + toff,
763 1.1 christos ia64_info);
764 1.1 christos }
765 1.1 christos else
766 1.1 christos {
767 1.1 christos ia64_elf_relax_ldxmov (contents, roff);
768 1.1 christos irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
769 1.1 christos changed_contents = TRUE;
770 1.1 christos changed_relocs = TRUE;
771 1.1 christos }
772 1.1 christos }
773 1.1 christos }
774 1.1 christos
775 1.1 christos /* ??? If we created fixups, this may push the code segment large
776 1.1 christos enough that the data segment moves, which will change the GP.
777 1.1 christos Reset the GP so that we re-calculate next round. We need to
778 1.1 christos do this at the _beginning_ of the next round; now will not do. */
779 1.1 christos
780 1.1 christos /* Clean up and go home. */
781 1.1 christos while (fixups)
782 1.1 christos {
783 1.1 christos struct one_fixup *f = fixups;
784 1.1 christos fixups = fixups->next;
785 1.1 christos free (f);
786 1.1 christos }
787 1.1 christos
788 1.1 christos if (isymbuf != NULL
789 1.1 christos && symtab_hdr->contents != (unsigned char *) isymbuf)
790 1.1 christos {
791 1.1 christos if (! link_info->keep_memory)
792 1.1 christos free (isymbuf);
793 1.1 christos else
794 1.1 christos {
795 1.1 christos /* Cache the symbols for elf_link_input_bfd. */
796 1.1 christos symtab_hdr->contents = (unsigned char *) isymbuf;
797 1.1 christos }
798 1.1 christos }
799 1.1 christos
800 1.1 christos if (contents != NULL
801 1.1 christos && elf_section_data (sec)->this_hdr.contents != contents)
802 1.1 christos {
803 1.1 christos if (!changed_contents && !link_info->keep_memory)
804 1.1 christos free (contents);
805 1.1 christos else
806 1.1 christos {
807 1.1 christos /* Cache the section contents for elf_link_input_bfd. */
808 1.1 christos elf_section_data (sec)->this_hdr.contents = contents;
809 1.1 christos }
810 1.1 christos }
811 1.1 christos
812 1.1 christos if (elf_section_data (sec)->relocs != internal_relocs)
813 1.1 christos {
814 1.1 christos if (!changed_relocs)
815 1.1 christos free (internal_relocs);
816 1.1 christos else
817 1.1 christos elf_section_data (sec)->relocs = internal_relocs;
818 1.1 christos }
819 1.1 christos
820 1.1 christos if (changed_got)
821 1.1 christos {
822 1.1 christos struct elfNN_ia64_allocate_data data;
823 1.1 christos data.info = link_info;
824 1.1 christos data.ofs = 0;
825 1.1 christos ia64_info->self_dtpmod_offset = (bfd_vma) -1;
826 1.1 christos
827 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
828 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
829 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
830 1.1 christos ia64_info->root.sgot->size = data.ofs;
831 1.1 christos
832 1.1 christos if (ia64_info->root.dynamic_sections_created
833 1.1 christos && ia64_info->root.srelgot != NULL)
834 1.1.1.4 christos {
835 1.1 christos /* Resize .rela.got. */
836 1.1 christos ia64_info->root.srelgot->size = 0;
837 1.1 christos if (bfd_link_pic (link_info)
838 1.1 christos && ia64_info->self_dtpmod_offset != (bfd_vma) -1)
839 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
840 1.1 christos data.only_got = TRUE;
841 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries,
842 1.1 christos &data);
843 1.1 christos }
844 1.1 christos }
845 1.1 christos
846 1.1 christos if (link_info->relax_pass == 0)
847 1.1 christos {
848 1.1 christos /* Pass 0 is only needed to relax br. */
849 1.1 christos sec->skip_relax_pass_0 = skip_relax_pass_0;
850 1.1 christos sec->skip_relax_pass_1 = skip_relax_pass_1;
851 1.1 christos }
852 1.1 christos
853 1.1 christos *again = changed_contents || changed_relocs;
854 1.1 christos return TRUE;
855 1.1 christos
856 1.1 christos error_return:
857 1.1 christos if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
858 1.1 christos free (isymbuf);
859 1.1 christos if (contents != NULL
860 1.1 christos && elf_section_data (sec)->this_hdr.contents != contents)
861 1.1 christos free (contents);
862 1.1 christos if (internal_relocs != NULL
863 1.1 christos && elf_section_data (sec)->relocs != internal_relocs)
864 1.1 christos free (internal_relocs);
865 1.1 christos return FALSE;
866 1.1 christos }
867 1.1 christos #undef skip_relax_pass_0
868 1.1 christos #undef skip_relax_pass_1
869 1.1 christos
870 1.1 christos /* Return TRUE if NAME is an unwind table section name. */
872 1.1 christos
873 1.1 christos static inline bfd_boolean
874 1.1 christos is_unwind_section_name (bfd *abfd, const char *name)
875 1.1 christos {
876 1.1 christos if (elfNN_ia64_hpux_vec (abfd->xvec)
877 1.1 christos && !strcmp (name, ELF_STRING_ia64_unwind_hdr))
878 1.1 christos return FALSE;
879 1.1 christos
880 1.1 christos return ((CONST_STRNEQ (name, ELF_STRING_ia64_unwind)
881 1.1 christos && ! CONST_STRNEQ (name, ELF_STRING_ia64_unwind_info))
882 1.1 christos || CONST_STRNEQ (name, ELF_STRING_ia64_unwind_once));
883 1.1 christos }
884 1.1 christos
885 1.1 christos /* Handle an IA-64 specific section when reading an object file. This
886 1.1 christos is called when bfd_section_from_shdr finds a section with an unknown
887 1.1 christos type. */
888 1.1 christos
889 1.1 christos static bfd_boolean
890 1.1 christos elfNN_ia64_section_from_shdr (bfd *abfd,
891 1.1 christos Elf_Internal_Shdr *hdr,
892 1.1 christos const char *name,
893 1.1 christos int shindex)
894 1.1 christos {
895 1.1 christos /* There ought to be a place to keep ELF backend specific flags, but
896 1.1 christos at the moment there isn't one. We just keep track of the
897 1.1 christos sections by their name, instead. Fortunately, the ABI gives
898 1.1 christos suggested names for all the MIPS specific sections, so we will
899 1.1 christos probably get away with this. */
900 1.1 christos switch (hdr->sh_type)
901 1.1 christos {
902 1.1 christos case SHT_IA_64_UNWIND:
903 1.1 christos case SHT_IA_64_HP_OPT_ANOT:
904 1.1 christos break;
905 1.1 christos
906 1.1 christos case SHT_IA_64_EXT:
907 1.1 christos if (strcmp (name, ELF_STRING_ia64_archext) != 0)
908 1.1 christos return FALSE;
909 1.1 christos break;
910 1.1 christos
911 1.1 christos default:
912 1.1 christos return FALSE;
913 1.1 christos }
914 1.1 christos
915 1.1 christos if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
916 1.1 christos return FALSE;
917 1.1 christos
918 1.1 christos return TRUE;
919 1.1 christos }
920 1.1 christos
921 1.1 christos /* Convert IA-64 specific section flags to bfd internal section flags. */
922 1.1 christos
923 1.1 christos /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
924 1.1 christos flag. */
925 1.1 christos
926 1.1 christos static bfd_boolean
927 1.1 christos elfNN_ia64_section_flags (flagword *flags,
928 1.1 christos const Elf_Internal_Shdr *hdr)
929 1.1 christos {
930 1.1 christos if (hdr->sh_flags & SHF_IA_64_SHORT)
931 1.1 christos *flags |= SEC_SMALL_DATA;
932 1.1 christos
933 1.1 christos return TRUE;
934 1.1 christos }
935 1.1 christos
936 1.1 christos /* Set the correct type for an IA-64 ELF section. We do this by the
937 1.1 christos section name, which is a hack, but ought to work. */
938 1.1 christos
939 1.1 christos static bfd_boolean
940 1.1 christos elfNN_ia64_fake_sections (bfd *abfd, Elf_Internal_Shdr *hdr,
941 1.1 christos asection *sec)
942 1.1 christos {
943 1.1 christos const char *name;
944 1.1 christos
945 1.1 christos name = bfd_get_section_name (abfd, sec);
946 1.1 christos
947 1.1 christos if (is_unwind_section_name (abfd, name))
948 1.1 christos {
949 1.1 christos /* We don't have the sections numbered at this point, so sh_info
950 1.1 christos is set later, in elfNN_ia64_final_write_processing. */
951 1.1 christos hdr->sh_type = SHT_IA_64_UNWIND;
952 1.1 christos hdr->sh_flags |= SHF_LINK_ORDER;
953 1.1 christos }
954 1.1 christos else if (strcmp (name, ELF_STRING_ia64_archext) == 0)
955 1.1 christos hdr->sh_type = SHT_IA_64_EXT;
956 1.1 christos else if (strcmp (name, ".HP.opt_annot") == 0)
957 1.1 christos hdr->sh_type = SHT_IA_64_HP_OPT_ANOT;
958 1.1 christos else if (strcmp (name, ".reloc") == 0)
959 1.1 christos /* This is an ugly, but unfortunately necessary hack that is
960 1.1 christos needed when producing EFI binaries on IA-64. It tells
961 1.1 christos elf.c:elf_fake_sections() not to consider ".reloc" as a section
962 1.1 christos containing ELF relocation info. We need this hack in order to
963 1.1 christos be able to generate ELF binaries that can be translated into
964 1.1 christos EFI applications (which are essentially COFF objects). Those
965 1.1 christos files contain a COFF ".reloc" section inside an ELFNN object,
966 1.1 christos which would normally cause BFD to segfault because it would
967 1.1 christos attempt to interpret this section as containing relocation
968 1.1 christos entries for section "oc". With this hack enabled, ".reloc"
969 1.1 christos will be treated as a normal data section, which will avoid the
970 1.1 christos segfault. However, you won't be able to create an ELFNN binary
971 1.1 christos with a section named "oc" that needs relocations, but that's
972 1.1 christos the kind of ugly side-effects you get when detecting section
973 1.1 christos types based on their names... In practice, this limitation is
974 1.1 christos unlikely to bite. */
975 1.1 christos hdr->sh_type = SHT_PROGBITS;
976 1.1 christos
977 1.1 christos if (sec->flags & SEC_SMALL_DATA)
978 1.1 christos hdr->sh_flags |= SHF_IA_64_SHORT;
979 1.1 christos
980 1.1 christos /* Some HP linkers look for the SHF_IA_64_HP_TLS flag instead of SHF_TLS. */
981 1.1 christos
982 1.1 christos if (elfNN_ia64_hpux_vec (abfd->xvec) && (sec->flags & SHF_TLS))
983 1.1 christos hdr->sh_flags |= SHF_IA_64_HP_TLS;
984 1.1 christos
985 1.1 christos return TRUE;
986 1.1 christos }
987 1.1 christos
988 1.1 christos /* The final processing done just before writing out an IA-64 ELF
989 1.1 christos object file. */
990 1.1 christos
991 1.1 christos static void
992 1.1 christos elfNN_ia64_final_write_processing (bfd *abfd,
993 1.1 christos bfd_boolean linker ATTRIBUTE_UNUSED)
994 1.1 christos {
995 1.1 christos Elf_Internal_Shdr *hdr;
996 1.1 christos asection *s;
997 1.1 christos
998 1.1 christos for (s = abfd->sections; s; s = s->next)
999 1.1 christos {
1000 1.1 christos hdr = &elf_section_data (s)->this_hdr;
1001 1.1 christos switch (hdr->sh_type)
1002 1.1 christos {
1003 1.1 christos case SHT_IA_64_UNWIND:
1004 1.1 christos /* The IA-64 processor-specific ABI requires setting sh_link
1005 1.1 christos to the unwind section, whereas HP-UX requires sh_info to
1006 1.1 christos do so. For maximum compatibility, we'll set both for
1007 1.1 christos now... */
1008 1.1 christos hdr->sh_info = hdr->sh_link;
1009 1.1 christos break;
1010 1.1 christos }
1011 1.1 christos }
1012 1.1 christos
1013 1.1 christos if (! elf_flags_init (abfd))
1014 1.1 christos {
1015 1.1 christos unsigned long flags = 0;
1016 1.1 christos
1017 1.1 christos if (abfd->xvec->byteorder == BFD_ENDIAN_BIG)
1018 1.1 christos flags |= EF_IA_64_BE;
1019 1.1 christos if (bfd_get_mach (abfd) == bfd_mach_ia64_elf64)
1020 1.1 christos flags |= EF_IA_64_ABI64;
1021 1.1 christos
1022 1.1 christos elf_elfheader(abfd)->e_flags = flags;
1023 1.1 christos elf_flags_init (abfd) = TRUE;
1024 1.1 christos }
1025 1.1 christos }
1026 1.1 christos
1027 1.1 christos /* Hook called by the linker routine which adds symbols from an object
1028 1.1 christos file. We use it to put .comm items in .sbss, and not .bss. */
1029 1.1 christos
1030 1.1 christos static bfd_boolean
1031 1.1 christos elfNN_ia64_add_symbol_hook (bfd *abfd,
1032 1.1 christos struct bfd_link_info *info,
1033 1.1 christos Elf_Internal_Sym *sym,
1034 1.1 christos const char **namep ATTRIBUTE_UNUSED,
1035 1.1 christos flagword *flagsp ATTRIBUTE_UNUSED,
1036 1.1.1.4 christos asection **secp,
1037 1.1 christos bfd_vma *valp)
1038 1.1 christos {
1039 1.1 christos if (sym->st_shndx == SHN_COMMON
1040 1.1 christos && !bfd_link_relocatable (info)
1041 1.1 christos && sym->st_size <= elf_gp_size (abfd))
1042 1.1 christos {
1043 1.1 christos /* Common symbols less than or equal to -G nn bytes are
1044 1.1 christos automatically put into .sbss. */
1045 1.1 christos
1046 1.1 christos asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
1047 1.1 christos
1048 1.1 christos if (scomm == NULL)
1049 1.1 christos {
1050 1.1 christos scomm = bfd_make_section_with_flags (abfd, ".scommon",
1051 1.1 christos (SEC_ALLOC
1052 1.1 christos | SEC_IS_COMMON
1053 1.1 christos | SEC_LINKER_CREATED));
1054 1.1 christos if (scomm == NULL)
1055 1.1 christos return FALSE;
1056 1.1 christos }
1057 1.1 christos
1058 1.1 christos *secp = scomm;
1059 1.1 christos *valp = sym->st_size;
1060 1.1 christos }
1061 1.1 christos
1062 1.1 christos return TRUE;
1063 1.1 christos }
1064 1.1 christos
1065 1.1 christos /* Return the number of additional phdrs we will need. */
1066 1.1 christos
1067 1.1 christos static int
1068 1.1 christos elfNN_ia64_additional_program_headers (bfd *abfd,
1069 1.1 christos struct bfd_link_info *info ATTRIBUTE_UNUSED)
1070 1.1 christos {
1071 1.1 christos asection *s;
1072 1.1 christos int ret = 0;
1073 1.1 christos
1074 1.1 christos /* See if we need a PT_IA_64_ARCHEXT segment. */
1075 1.1 christos s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext);
1076 1.1 christos if (s && (s->flags & SEC_LOAD))
1077 1.1 christos ++ret;
1078 1.1 christos
1079 1.1 christos /* Count how many PT_IA_64_UNWIND segments we need. */
1080 1.1 christos for (s = abfd->sections; s; s = s->next)
1081 1.1 christos if (is_unwind_section_name (abfd, s->name) && (s->flags & SEC_LOAD))
1082 1.1 christos ++ret;
1083 1.1 christos
1084 1.1 christos return ret;
1085 1.1 christos }
1086 1.1 christos
1087 1.1 christos static bfd_boolean
1088 1.1 christos elfNN_ia64_modify_segment_map (bfd *abfd,
1089 1.1 christos struct bfd_link_info *info ATTRIBUTE_UNUSED)
1090 1.1 christos {
1091 1.1 christos struct elf_segment_map *m, **pm;
1092 1.1 christos Elf_Internal_Shdr *hdr;
1093 1.1 christos asection *s;
1094 1.1 christos
1095 1.1 christos /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1096 1.1 christos all PT_LOAD segments. */
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 {
1100 1.1 christos for (m = elf_seg_map (abfd); m != NULL; m = m->next)
1101 1.1 christos if (m->p_type == PT_IA_64_ARCHEXT)
1102 1.1 christos break;
1103 1.1 christos if (m == NULL)
1104 1.1 christos {
1105 1.1 christos m = ((struct elf_segment_map *)
1106 1.1 christos bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
1107 1.1 christos if (m == NULL)
1108 1.1 christos return FALSE;
1109 1.1 christos
1110 1.1 christos m->p_type = PT_IA_64_ARCHEXT;
1111 1.1 christos m->count = 1;
1112 1.1 christos m->sections[0] = s;
1113 1.1 christos
1114 1.1 christos /* We want to put it after the PHDR and INTERP segments. */
1115 1.1 christos pm = &elf_seg_map (abfd);
1116 1.1 christos while (*pm != NULL
1117 1.1 christos && ((*pm)->p_type == PT_PHDR
1118 1.1 christos || (*pm)->p_type == PT_INTERP))
1119 1.1 christos pm = &(*pm)->next;
1120 1.1 christos
1121 1.1 christos m->next = *pm;
1122 1.1 christos *pm = m;
1123 1.1 christos }
1124 1.1 christos }
1125 1.1 christos
1126 1.1 christos /* Install PT_IA_64_UNWIND segments, if needed. */
1127 1.1 christos for (s = abfd->sections; s; s = s->next)
1128 1.1 christos {
1129 1.1 christos hdr = &elf_section_data (s)->this_hdr;
1130 1.1 christos if (hdr->sh_type != SHT_IA_64_UNWIND)
1131 1.1 christos continue;
1132 1.1 christos
1133 1.1 christos if (s && (s->flags & SEC_LOAD))
1134 1.1 christos {
1135 1.1 christos for (m = elf_seg_map (abfd); m != NULL; m = m->next)
1136 1.1 christos if (m->p_type == PT_IA_64_UNWIND)
1137 1.1 christos {
1138 1.1 christos int i;
1139 1.1 christos
1140 1.1 christos /* Look through all sections in the unwind segment
1141 1.1 christos for a match since there may be multiple sections
1142 1.1 christos to a segment. */
1143 1.1 christos for (i = m->count - 1; i >= 0; --i)
1144 1.1 christos if (m->sections[i] == s)
1145 1.1 christos break;
1146 1.1 christos
1147 1.1 christos if (i >= 0)
1148 1.1 christos break;
1149 1.1 christos }
1150 1.1 christos
1151 1.1 christos if (m == NULL)
1152 1.1 christos {
1153 1.1 christos m = ((struct elf_segment_map *)
1154 1.1 christos bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
1155 1.1 christos if (m == NULL)
1156 1.1 christos return FALSE;
1157 1.1 christos
1158 1.1 christos m->p_type = PT_IA_64_UNWIND;
1159 1.1 christos m->count = 1;
1160 1.1 christos m->sections[0] = s;
1161 1.1 christos m->next = NULL;
1162 1.1 christos
1163 1.1 christos /* We want to put it last. */
1164 1.1 christos pm = &elf_seg_map (abfd);
1165 1.1 christos while (*pm != NULL)
1166 1.1 christos pm = &(*pm)->next;
1167 1.1 christos *pm = m;
1168 1.1 christos }
1169 1.1 christos }
1170 1.1 christos }
1171 1.1 christos
1172 1.1 christos return TRUE;
1173 1.1 christos }
1174 1.1 christos
1175 1.1 christos /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1176 1.1 christos the input sections for each output section in the segment and testing
1177 1.1 christos for SHF_IA_64_NORECOV on each. */
1178 1.1 christos
1179 1.1 christos static bfd_boolean
1180 1.1 christos elfNN_ia64_modify_program_headers (bfd *abfd,
1181 1.1 christos struct bfd_link_info *info ATTRIBUTE_UNUSED)
1182 1.1 christos {
1183 1.1 christos struct elf_obj_tdata *tdata = elf_tdata (abfd);
1184 1.1 christos struct elf_segment_map *m;
1185 1.1 christos Elf_Internal_Phdr *p;
1186 1.1 christos
1187 1.1 christos for (p = tdata->phdr, m = elf_seg_map (abfd); m != NULL; m = m->next, p++)
1188 1.1 christos if (m->p_type == PT_LOAD)
1189 1.1 christos {
1190 1.1 christos int i;
1191 1.1 christos for (i = m->count - 1; i >= 0; --i)
1192 1.1 christos {
1193 1.1 christos struct bfd_link_order *order = m->sections[i]->map_head.link_order;
1194 1.1 christos
1195 1.1 christos while (order != NULL)
1196 1.1 christos {
1197 1.1 christos if (order->type == bfd_indirect_link_order)
1198 1.1 christos {
1199 1.1 christos asection *is = order->u.indirect.section;
1200 1.1 christos bfd_vma flags = elf_section_data(is)->this_hdr.sh_flags;
1201 1.1 christos if (flags & SHF_IA_64_NORECOV)
1202 1.1 christos {
1203 1.1 christos p->p_flags |= PF_IA_64_NORECOV;
1204 1.1 christos goto found;
1205 1.1 christos }
1206 1.1 christos }
1207 1.1 christos order = order->next;
1208 1.1 christos }
1209 1.1 christos }
1210 1.1 christos found:;
1211 1.1 christos }
1212 1.1 christos
1213 1.1 christos return TRUE;
1214 1.1 christos }
1215 1.1 christos
1216 1.1 christos /* According to the Tahoe assembler spec, all labels starting with a
1217 1.1 christos '.' are local. */
1218 1.1 christos
1219 1.1 christos static bfd_boolean
1220 1.1 christos elfNN_ia64_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
1221 1.1 christos const char *name)
1222 1.1 christos {
1223 1.1 christos return name[0] == '.';
1224 1.1 christos }
1225 1.1 christos
1226 1.1 christos /* Should we do dynamic things to this symbol? */
1227 1.1 christos
1228 1.1 christos static bfd_boolean
1229 1.1 christos elfNN_ia64_dynamic_symbol_p (struct elf_link_hash_entry *h,
1230 1.1 christos struct bfd_link_info *info, int r_type)
1231 1.1 christos {
1232 1.1 christos bfd_boolean ignore_protected
1233 1.1 christos = ((r_type & 0xf8) == 0x40 /* FPTR relocs */
1234 1.1 christos || (r_type & 0xf8) == 0x50); /* LTOFF_FPTR relocs */
1235 1.1 christos
1236 1.1 christos return _bfd_elf_dynamic_symbol_p (h, info, ignore_protected);
1237 1.1 christos }
1238 1.1 christos
1239 1.1 christos static struct bfd_hash_entry*
1241 1.1 christos elfNN_ia64_new_elf_hash_entry (struct bfd_hash_entry *entry,
1242 1.1 christos struct bfd_hash_table *table,
1243 1.1 christos const char *string)
1244 1.1 christos {
1245 1.1 christos struct elfNN_ia64_link_hash_entry *ret;
1246 1.1 christos ret = (struct elfNN_ia64_link_hash_entry *) entry;
1247 1.1 christos
1248 1.1 christos /* Allocate the structure if it has not already been allocated by a
1249 1.1 christos subclass. */
1250 1.1 christos if (!ret)
1251 1.1 christos ret = bfd_hash_allocate (table, sizeof (*ret));
1252 1.1 christos
1253 1.1 christos if (!ret)
1254 1.1 christos return 0;
1255 1.1 christos
1256 1.1 christos /* Call the allocation method of the superclass. */
1257 1.1 christos ret = ((struct elfNN_ia64_link_hash_entry *)
1258 1.1 christos _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1259 1.1 christos table, string));
1260 1.1 christos
1261 1.1 christos ret->info = NULL;
1262 1.1 christos ret->count = 0;
1263 1.1 christos ret->sorted_count = 0;
1264 1.1 christos ret->size = 0;
1265 1.1 christos return (struct bfd_hash_entry *) ret;
1266 1.1 christos }
1267 1.1 christos
1268 1.1 christos static void
1269 1.1 christos elfNN_ia64_hash_copy_indirect (struct bfd_link_info *info,
1270 1.1 christos struct elf_link_hash_entry *xdir,
1271 1.1 christos struct elf_link_hash_entry *xind)
1272 1.1 christos {
1273 1.1 christos struct elfNN_ia64_link_hash_entry *dir, *ind;
1274 1.1 christos
1275 1.1 christos dir = (struct elfNN_ia64_link_hash_entry *) xdir;
1276 1.1 christos ind = (struct elfNN_ia64_link_hash_entry *) xind;
1277 1.1 christos
1278 1.1 christos /* Copy down any references that we may have already seen to the
1279 1.1 christos symbol which just became indirect. */
1280 1.1 christos
1281 1.1 christos dir->root.ref_dynamic |= ind->root.ref_dynamic;
1282 1.1 christos dir->root.ref_regular |= ind->root.ref_regular;
1283 1.1 christos dir->root.ref_regular_nonweak |= ind->root.ref_regular_nonweak;
1284 1.1 christos dir->root.needs_plt |= ind->root.needs_plt;
1285 1.1 christos
1286 1.1 christos if (ind->root.root.type != bfd_link_hash_indirect)
1287 1.1 christos return;
1288 1.1 christos
1289 1.1 christos /* Copy over the got and plt data. This would have been done
1290 1.1 christos by check_relocs. */
1291 1.1 christos
1292 1.1 christos if (ind->info != NULL)
1293 1.1 christos {
1294 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
1295 1.1 christos unsigned int count;
1296 1.1 christos
1297 1.1 christos if (dir->info)
1298 1.1 christos free (dir->info);
1299 1.1 christos
1300 1.1 christos dir->info = ind->info;
1301 1.1 christos dir->count = ind->count;
1302 1.1 christos dir->sorted_count = ind->sorted_count;
1303 1.1 christos dir->size = ind->size;
1304 1.1 christos
1305 1.1 christos ind->info = NULL;
1306 1.1 christos ind->count = 0;
1307 1.1 christos ind->sorted_count = 0;
1308 1.1 christos ind->size = 0;
1309 1.1 christos
1310 1.1 christos /* Fix up the dyn_sym_info pointers to the global symbol. */
1311 1.1 christos for (count = dir->count, dyn_i = dir->info;
1312 1.1 christos count != 0;
1313 1.1 christos count--, dyn_i++)
1314 1.1 christos dyn_i->h = &dir->root;
1315 1.1 christos }
1316 1.1 christos
1317 1.1 christos /* Copy over the dynindx. */
1318 1.1 christos
1319 1.1 christos if (ind->root.dynindx != -1)
1320 1.1 christos {
1321 1.1 christos if (dir->root.dynindx != -1)
1322 1.1 christos _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1323 1.1 christos dir->root.dynstr_index);
1324 1.1 christos dir->root.dynindx = ind->root.dynindx;
1325 1.1 christos dir->root.dynstr_index = ind->root.dynstr_index;
1326 1.1 christos ind->root.dynindx = -1;
1327 1.1 christos ind->root.dynstr_index = 0;
1328 1.1 christos }
1329 1.1 christos }
1330 1.1 christos
1331 1.1 christos static void
1332 1.1 christos elfNN_ia64_hash_hide_symbol (struct bfd_link_info *info,
1333 1.1 christos struct elf_link_hash_entry *xh,
1334 1.1 christos bfd_boolean force_local)
1335 1.1 christos {
1336 1.1 christos struct elfNN_ia64_link_hash_entry *h;
1337 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
1338 1.1 christos unsigned int count;
1339 1.1 christos
1340 1.1 christos h = (struct elfNN_ia64_link_hash_entry *)xh;
1341 1.1 christos
1342 1.1 christos _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local);
1343 1.1 christos
1344 1.1 christos for (count = h->count, dyn_i = h->info;
1345 1.1 christos count != 0;
1346 1.1 christos count--, dyn_i++)
1347 1.1 christos {
1348 1.1 christos dyn_i->want_plt2 = 0;
1349 1.1 christos dyn_i->want_plt = 0;
1350 1.1 christos }
1351 1.1 christos }
1352 1.1 christos
1353 1.1 christos /* Compute a hash of a local hash entry. */
1354 1.1 christos
1355 1.1 christos static hashval_t
1356 1.1 christos elfNN_ia64_local_htab_hash (const void *ptr)
1357 1.1 christos {
1358 1.1 christos struct elfNN_ia64_local_hash_entry *entry
1359 1.1 christos = (struct elfNN_ia64_local_hash_entry *) ptr;
1360 1.1 christos
1361 1.1 christos return ELF_LOCAL_SYMBOL_HASH (entry->id, entry->r_sym);
1362 1.1 christos }
1363 1.1 christos
1364 1.1 christos /* Compare local hash entries. */
1365 1.1 christos
1366 1.1 christos static int
1367 1.1 christos elfNN_ia64_local_htab_eq (const void *ptr1, const void *ptr2)
1368 1.1 christos {
1369 1.1 christos struct elfNN_ia64_local_hash_entry *entry1
1370 1.1 christos = (struct elfNN_ia64_local_hash_entry *) ptr1;
1371 1.1 christos struct elfNN_ia64_local_hash_entry *entry2
1372 1.1 christos = (struct elfNN_ia64_local_hash_entry *) ptr2;
1373 1.1 christos
1374 1.1 christos return entry1->id == entry2->id && entry1->r_sym == entry2->r_sym;
1375 1.1 christos }
1376 1.1 christos
1377 1.1 christos /* Free the global elfNN_ia64_dyn_sym_info array. */
1378 1.1 christos
1379 1.1 christos static bfd_boolean
1380 1.1 christos elfNN_ia64_global_dyn_info_free (void **xentry,
1381 1.1 christos void * unused ATTRIBUTE_UNUSED)
1382 1.1 christos {
1383 1.1 christos struct elfNN_ia64_link_hash_entry *entry
1384 1.1 christos = (struct elfNN_ia64_link_hash_entry *) xentry;
1385 1.1 christos
1386 1.1 christos if (entry->info)
1387 1.1 christos {
1388 1.1 christos free (entry->info);
1389 1.1 christos entry->info = NULL;
1390 1.1 christos entry->count = 0;
1391 1.1 christos entry->sorted_count = 0;
1392 1.1 christos entry->size = 0;
1393 1.1 christos }
1394 1.1 christos
1395 1.1 christos return TRUE;
1396 1.1 christos }
1397 1.1 christos
1398 1.1 christos /* Free the local elfNN_ia64_dyn_sym_info array. */
1399 1.1 christos
1400 1.1 christos static bfd_boolean
1401 1.1 christos elfNN_ia64_local_dyn_info_free (void **slot,
1402 1.1 christos void * unused ATTRIBUTE_UNUSED)
1403 1.1 christos {
1404 1.1 christos struct elfNN_ia64_local_hash_entry *entry
1405 1.1 christos = (struct elfNN_ia64_local_hash_entry *) *slot;
1406 1.1 christos
1407 1.1 christos if (entry->info)
1408 1.1 christos {
1409 1.1 christos free (entry->info);
1410 1.1 christos entry->info = NULL;
1411 1.1 christos entry->count = 0;
1412 1.1 christos entry->sorted_count = 0;
1413 1.1 christos entry->size = 0;
1414 1.1 christos }
1415 1.1 christos
1416 1.1 christos return TRUE;
1417 1.1.1.3 christos }
1418 1.1 christos
1419 1.1 christos /* Destroy IA-64 linker hash table. */
1420 1.1.1.3 christos
1421 1.1 christos static void
1422 1.1 christos elfNN_ia64_link_hash_table_free (bfd *obfd)
1423 1.1 christos {
1424 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info
1425 1.1 christos = (struct elfNN_ia64_link_hash_table *) obfd->link.hash;
1426 1.1 christos if (ia64_info->loc_hash_table)
1427 1.1 christos {
1428 1.1 christos htab_traverse (ia64_info->loc_hash_table,
1429 1.1 christos elfNN_ia64_local_dyn_info_free, NULL);
1430 1.1 christos htab_delete (ia64_info->loc_hash_table);
1431 1.1.1.3 christos }
1432 1.1.1.3 christos if (ia64_info->loc_hash_memory)
1433 1.1.1.3 christos objalloc_free ((struct objalloc *) ia64_info->loc_hash_memory);
1434 1.1.1.3 christos elf_link_hash_traverse (&ia64_info->root,
1435 1.1.1.3 christos elfNN_ia64_global_dyn_info_free, NULL);
1436 1.1.1.3 christos _bfd_elf_link_hash_table_free (obfd);
1437 1.1.1.3 christos }
1438 1.1.1.3 christos
1439 1.1.1.3 christos /* Create the derived linker hash table. The IA-64 ELF port uses this
1440 1.1.1.3 christos derived hash table to keep information specific to the IA-64 ElF
1441 1.1.1.3 christos linker (without using static variables). */
1442 1.1.1.3 christos
1443 1.1.1.3 christos static struct bfd_link_hash_table *
1444 1.1.1.3 christos elfNN_ia64_hash_table_create (bfd *abfd)
1445 1.1.1.3 christos {
1446 1.1.1.3 christos struct elfNN_ia64_link_hash_table *ret;
1447 1.1.1.3 christos
1448 1.1.1.3 christos ret = bfd_zmalloc ((bfd_size_type) sizeof (*ret));
1449 1.1.1.3 christos if (!ret)
1450 1.1.1.3 christos return NULL;
1451 1.1.1.3 christos
1452 1.1.1.3 christos if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1453 1.1.1.3 christos elfNN_ia64_new_elf_hash_entry,
1454 1.1.1.3 christos sizeof (struct elfNN_ia64_link_hash_entry),
1455 1.1.1.3 christos IA64_ELF_DATA))
1456 1.1.1.3 christos {
1457 1.1.1.3 christos free (ret);
1458 1.1.1.3 christos return NULL;
1459 1.1.1.3 christos }
1460 1.1.1.3 christos
1461 1.1.1.3 christos ret->loc_hash_table = htab_try_create (1024, elfNN_ia64_local_htab_hash,
1462 1.1.1.3 christos elfNN_ia64_local_htab_eq, NULL);
1463 1.1.1.3 christos ret->loc_hash_memory = objalloc_create ();
1464 1.1.1.3 christos if (!ret->loc_hash_table || !ret->loc_hash_memory)
1465 1.1.1.3 christos {
1466 1.1.1.3 christos elfNN_ia64_link_hash_table_free (abfd);
1467 1.1 christos return NULL;
1468 1.1 christos }
1469 1.1 christos ret->root.root.hash_table_free = elfNN_ia64_link_hash_table_free;
1470 1.1 christos
1471 1.1 christos return &ret->root.root;
1472 1.1 christos }
1473 1.1 christos
1474 1.1 christos /* Traverse both local and global hash tables. */
1475 1.1 christos
1476 1.1 christos struct elfNN_ia64_dyn_sym_traverse_data
1477 1.1 christos {
1478 1.1 christos bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, void *);
1479 1.1 christos void * data;
1480 1.1 christos };
1481 1.1 christos
1482 1.1 christos static bfd_boolean
1483 1.1 christos elfNN_ia64_global_dyn_sym_thunk (struct bfd_hash_entry *xentry,
1484 1.1 christos void * xdata)
1485 1.1 christos {
1486 1.1 christos struct elfNN_ia64_link_hash_entry *entry
1487 1.1 christos = (struct elfNN_ia64_link_hash_entry *) xentry;
1488 1.1 christos struct elfNN_ia64_dyn_sym_traverse_data *data
1489 1.1 christos = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1490 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
1491 1.1 christos unsigned int count;
1492 1.1 christos
1493 1.1 christos for (count = entry->count, dyn_i = entry->info;
1494 1.1 christos count != 0;
1495 1.1 christos count--, dyn_i++)
1496 1.1 christos if (! (*data->func) (dyn_i, data->data))
1497 1.1 christos return FALSE;
1498 1.1 christos return TRUE;
1499 1.1 christos }
1500 1.1 christos
1501 1.1 christos static bfd_boolean
1502 1.1 christos elfNN_ia64_local_dyn_sym_thunk (void **slot, void * xdata)
1503 1.1 christos {
1504 1.1 christos struct elfNN_ia64_local_hash_entry *entry
1505 1.1 christos = (struct elfNN_ia64_local_hash_entry *) *slot;
1506 1.1 christos struct elfNN_ia64_dyn_sym_traverse_data *data
1507 1.1 christos = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1508 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
1509 1.1 christos unsigned int count;
1510 1.1 christos
1511 1.1 christos for (count = entry->count, dyn_i = entry->info;
1512 1.1 christos count != 0;
1513 1.1 christos count--, dyn_i++)
1514 1.1 christos if (! (*data->func) (dyn_i, data->data))
1515 1.1 christos return FALSE;
1516 1.1 christos return TRUE;
1517 1.1 christos }
1518 1.1 christos
1519 1.1 christos static void
1520 1.1 christos elfNN_ia64_dyn_sym_traverse (struct elfNN_ia64_link_hash_table *ia64_info,
1521 1.1 christos bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, void *),
1522 1.1 christos void * data)
1523 1.1 christos {
1524 1.1 christos struct elfNN_ia64_dyn_sym_traverse_data xdata;
1525 1.1 christos
1526 1.1 christos xdata.func = func;
1527 1.1 christos xdata.data = data;
1528 1.1 christos
1529 1.1 christos elf_link_hash_traverse (&ia64_info->root,
1530 1.1 christos elfNN_ia64_global_dyn_sym_thunk, &xdata);
1531 1.1 christos htab_traverse (ia64_info->loc_hash_table,
1532 1.1 christos elfNN_ia64_local_dyn_sym_thunk, &xdata);
1533 1.1 christos }
1534 1.1 christos
1535 1.1 christos static bfd_boolean
1537 1.1 christos elfNN_ia64_create_dynamic_sections (bfd *abfd,
1538 1.1 christos struct bfd_link_info *info)
1539 1.1 christos {
1540 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
1541 1.1 christos asection *s;
1542 1.1 christos
1543 1.1 christos if (! _bfd_elf_create_dynamic_sections (abfd, info))
1544 1.1 christos return FALSE;
1545 1.1 christos
1546 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
1547 1.1 christos if (ia64_info == NULL)
1548 1.1 christos return FALSE;
1549 1.1.1.2 christos
1550 1.1.1.2 christos {
1551 1.1 christos flagword flags = bfd_get_section_flags (abfd, ia64_info->root.sgot);
1552 1.1 christos bfd_set_section_flags (abfd, ia64_info->root.sgot,
1553 1.1 christos SEC_SMALL_DATA | flags);
1554 1.1 christos /* The .got section is always aligned at 8 bytes. */
1555 1.1 christos if (! bfd_set_section_alignment (abfd, ia64_info->root.sgot, 3))
1556 1.1 christos return FALSE;
1557 1.1 christos }
1558 1.1 christos
1559 1.1 christos if (!get_pltoff (abfd, info, ia64_info))
1560 1.1 christos return FALSE;
1561 1.1 christos
1562 1.1 christos s = bfd_make_section_anyway_with_flags (abfd, ".rela.IA_64.pltoff",
1563 1.1 christos (SEC_ALLOC | SEC_LOAD
1564 1.1 christos | SEC_HAS_CONTENTS
1565 1.1 christos | SEC_IN_MEMORY
1566 1.1 christos | SEC_LINKER_CREATED
1567 1.1 christos | SEC_READONLY));
1568 1.1 christos if (s == NULL
1569 1.1 christos || !bfd_set_section_alignment (abfd, s, LOG_SECTION_ALIGN))
1570 1.1 christos return FALSE;
1571 1.1 christos ia64_info->rel_pltoff_sec = s;
1572 1.1 christos
1573 1.1 christos return TRUE;
1574 1.1 christos }
1575 1.1 christos
1576 1.1 christos /* Find and/or create a hash entry for local symbol. */
1577 1.1 christos static struct elfNN_ia64_local_hash_entry *
1578 1.1 christos get_local_sym_hash (struct elfNN_ia64_link_hash_table *ia64_info,
1579 1.1 christos bfd *abfd, const Elf_Internal_Rela *rel,
1580 1.1 christos bfd_boolean create)
1581 1.1 christos {
1582 1.1 christos struct elfNN_ia64_local_hash_entry e, *ret;
1583 1.1 christos asection *sec = abfd->sections;
1584 1.1 christos hashval_t h = ELF_LOCAL_SYMBOL_HASH (sec->id,
1585 1.1 christos ELFNN_R_SYM (rel->r_info));
1586 1.1 christos void **slot;
1587 1.1 christos
1588 1.1 christos e.id = sec->id;
1589 1.1 christos e.r_sym = ELFNN_R_SYM (rel->r_info);
1590 1.1 christos slot = htab_find_slot_with_hash (ia64_info->loc_hash_table, &e, h,
1591 1.1 christos create ? INSERT : NO_INSERT);
1592 1.1 christos
1593 1.1 christos if (!slot)
1594 1.1 christos return NULL;
1595 1.1 christos
1596 1.1 christos if (*slot)
1597 1.1 christos return (struct elfNN_ia64_local_hash_entry *) *slot;
1598 1.1 christos
1599 1.1 christos ret = (struct elfNN_ia64_local_hash_entry *)
1600 1.1 christos objalloc_alloc ((struct objalloc *) ia64_info->loc_hash_memory,
1601 1.1 christos sizeof (struct elfNN_ia64_local_hash_entry));
1602 1.1 christos if (ret)
1603 1.1 christos {
1604 1.1 christos memset (ret, 0, sizeof (*ret));
1605 1.1 christos ret->id = sec->id;
1606 1.1 christos ret->r_sym = ELFNN_R_SYM (rel->r_info);
1607 1.1 christos *slot = ret;
1608 1.1 christos }
1609 1.1 christos return ret;
1610 1.1 christos }
1611 1.1 christos
1612 1.1 christos /* Used to sort elfNN_ia64_dyn_sym_info array. */
1613 1.1 christos
1614 1.1 christos static int
1615 1.1 christos addend_compare (const void *xp, const void *yp)
1616 1.1 christos {
1617 1.1 christos const struct elfNN_ia64_dyn_sym_info *x
1618 1.1 christos = (const struct elfNN_ia64_dyn_sym_info *) xp;
1619 1.1 christos const struct elfNN_ia64_dyn_sym_info *y
1620 1.1 christos = (const struct elfNN_ia64_dyn_sym_info *) yp;
1621 1.1 christos
1622 1.1 christos return x->addend < y->addend ? -1 : x->addend > y->addend ? 1 : 0;
1623 1.1 christos }
1624 1.1 christos
1625 1.1 christos /* Sort elfNN_ia64_dyn_sym_info array and remove duplicates. */
1626 1.1 christos
1627 1.1 christos static unsigned int
1628 1.1 christos sort_dyn_sym_info (struct elfNN_ia64_dyn_sym_info *info,
1629 1.1 christos unsigned int count)
1630 1.1 christos {
1631 1.1 christos bfd_vma curr, prev, got_offset;
1632 1.1 christos unsigned int i, kept, dupes, diff, dest, src, len;
1633 1.1 christos
1634 1.1 christos qsort (info, count, sizeof (*info), addend_compare);
1635 1.1 christos
1636 1.1 christos /* Find the first duplicate. */
1637 1.1 christos prev = info [0].addend;
1638 1.1 christos got_offset = info [0].got_offset;
1639 1.1 christos for (i = 1; i < count; i++)
1640 1.1 christos {
1641 1.1 christos curr = info [i].addend;
1642 1.1 christos if (curr == prev)
1643 1.1 christos {
1644 1.1 christos /* For duplicates, make sure that GOT_OFFSET is valid. */
1645 1.1 christos if (got_offset == (bfd_vma) -1)
1646 1.1 christos got_offset = info [i].got_offset;
1647 1.1 christos break;
1648 1.1 christos }
1649 1.1 christos got_offset = info [i].got_offset;
1650 1.1 christos prev = curr;
1651 1.1 christos }
1652 1.1 christos
1653 1.1 christos /* We may move a block of elements to here. */
1654 1.1 christos dest = i++;
1655 1.1 christos
1656 1.1 christos /* Remove duplicates. */
1657 1.1 christos if (i < count)
1658 1.1 christos {
1659 1.1 christos while (i < count)
1660 1.1 christos {
1661 1.1 christos /* For duplicates, make sure that the kept one has a valid
1662 1.1 christos got_offset. */
1663 1.1 christos kept = dest - 1;
1664 1.1 christos if (got_offset != (bfd_vma) -1)
1665 1.1 christos info [kept].got_offset = got_offset;
1666 1.1 christos
1667 1.1 christos curr = info [i].addend;
1668 1.1 christos got_offset = info [i].got_offset;
1669 1.1 christos
1670 1.1 christos /* Move a block of elements whose first one is different from
1671 1.1 christos the previous. */
1672 1.1 christos if (curr == prev)
1673 1.1 christos {
1674 1.1 christos for (src = i + 1; src < count; src++)
1675 1.1 christos {
1676 1.1 christos if (info [src].addend != curr)
1677 1.1 christos break;
1678 1.1 christos /* For duplicates, make sure that GOT_OFFSET is
1679 1.1 christos valid. */
1680 1.1 christos if (got_offset == (bfd_vma) -1)
1681 1.1 christos got_offset = info [src].got_offset;
1682 1.1 christos }
1683 1.1 christos
1684 1.1 christos /* Make sure that the kept one has a valid got_offset. */
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 else
1689 1.1 christos src = i;
1690 1.1 christos
1691 1.1 christos if (src >= count)
1692 1.1 christos break;
1693 1.1 christos
1694 1.1 christos /* Find the next duplicate. SRC will be kept. */
1695 1.1 christos prev = info [src].addend;
1696 1.1 christos got_offset = info [src].got_offset;
1697 1.1 christos for (dupes = src + 1; dupes < count; dupes ++)
1698 1.1 christos {
1699 1.1 christos curr = info [dupes].addend;
1700 1.1 christos if (curr == prev)
1701 1.1 christos {
1702 1.1 christos /* Make sure that got_offset is valid. */
1703 1.1 christos if (got_offset == (bfd_vma) -1)
1704 1.1 christos got_offset = info [dupes].got_offset;
1705 1.1 christos
1706 1.1 christos /* For duplicates, make sure that the kept one has
1707 1.1 christos a valid got_offset. */
1708 1.1 christos if (got_offset != (bfd_vma) -1)
1709 1.1 christos info [dupes - 1].got_offset = got_offset;
1710 1.1 christos break;
1711 1.1 christos }
1712 1.1 christos got_offset = info [dupes].got_offset;
1713 1.1 christos prev = curr;
1714 1.1 christos }
1715 1.1 christos
1716 1.1 christos /* How much to move. */
1717 1.1 christos len = dupes - src;
1718 1.1 christos i = dupes + 1;
1719 1.1 christos
1720 1.1 christos if (len == 1 && dupes < count)
1721 1.1 christos {
1722 1.1 christos /* If we only move 1 element, we combine it with the next
1723 1.1 christos one. There must be at least a duplicate. Find the
1724 1.1 christos next different one. */
1725 1.1 christos for (diff = dupes + 1, src++; diff < count; diff++, src++)
1726 1.1 christos {
1727 1.1 christos if (info [diff].addend != curr)
1728 1.1 christos break;
1729 1.1 christos /* Make sure that got_offset is valid. */
1730 1.1 christos if (got_offset == (bfd_vma) -1)
1731 1.1 christos got_offset = info [diff].got_offset;
1732 1.1 christos }
1733 1.1 christos
1734 1.1 christos /* Makre sure that the last duplicated one has an valid
1735 1.1 christos offset. */
1736 1.1 christos BFD_ASSERT (curr == prev);
1737 1.1 christos if (got_offset != (bfd_vma) -1)
1738 1.1 christos info [diff - 1].got_offset = got_offset;
1739 1.1 christos
1740 1.1 christos if (diff < count)
1741 1.1 christos {
1742 1.1 christos /* Find the next duplicate. Track the current valid
1743 1.1 christos offset. */
1744 1.1 christos prev = info [diff].addend;
1745 1.1 christos got_offset = info [diff].got_offset;
1746 1.1 christos for (dupes = diff + 1; dupes < count; dupes ++)
1747 1.1 christos {
1748 1.1 christos curr = info [dupes].addend;
1749 1.1 christos if (curr == prev)
1750 1.1 christos {
1751 1.1 christos /* For duplicates, make sure that GOT_OFFSET
1752 1.1 christos is valid. */
1753 1.1 christos if (got_offset == (bfd_vma) -1)
1754 1.1 christos got_offset = info [dupes].got_offset;
1755 1.1 christos break;
1756 1.1 christos }
1757 1.1 christos got_offset = info [dupes].got_offset;
1758 1.1 christos prev = curr;
1759 1.1 christos diff++;
1760 1.1 christos }
1761 1.1 christos
1762 1.1 christos len = diff - src + 1;
1763 1.1 christos i = diff + 1;
1764 1.1 christos }
1765 1.1 christos }
1766 1.1 christos
1767 1.1 christos memmove (&info [dest], &info [src], len * sizeof (*info));
1768 1.1 christos
1769 1.1 christos dest += len;
1770 1.1 christos }
1771 1.1 christos
1772 1.1 christos count = dest;
1773 1.1 christos }
1774 1.1 christos else
1775 1.1 christos {
1776 1.1 christos /* When we get here, either there is no duplicate at all or
1777 1.1 christos the only duplicate is the last element. */
1778 1.1 christos if (dest < count)
1779 1.1 christos {
1780 1.1 christos /* If the last element is a duplicate, make sure that the
1781 1.1 christos kept one has a valid got_offset. We also update count. */
1782 1.1 christos if (got_offset != (bfd_vma) -1)
1783 1.1 christos info [dest - 1].got_offset = got_offset;
1784 1.1 christos count = dest;
1785 1.1 christos }
1786 1.1 christos }
1787 1.1 christos
1788 1.1 christos return count;
1789 1.1 christos }
1790 1.1 christos
1791 1.1 christos /* Find and/or create a descriptor for dynamic symbol info. This will
1792 1.1 christos vary based on global or local symbol, and the addend to the reloc.
1793 1.1 christos
1794 1.1 christos We don't sort when inserting. Also, we sort and eliminate
1795 1.1 christos duplicates if there is an unsorted section. Typically, this will
1796 1.1 christos only happen once, because we do all insertions before lookups. We
1797 1.1 christos then use bsearch to do a lookup. This also allows lookups to be
1798 1.1 christos fast. So we have fast insertion (O(log N) due to duplicate check),
1799 1.1 christos fast lookup (O(log N)) and one sort (O(N log N) expected time).
1800 1.1 christos Previously, all lookups were O(N) because of the use of the linked
1801 1.1 christos list and also all insertions were O(N) because of the check for
1802 1.1 christos duplicates. There are some complications here because the array
1803 1.1 christos size grows occasionally, which may add an O(N) factor, but this
1804 1.1 christos should be rare. Also, we free the excess array allocation, which
1805 1.1 christos requires a copy which is O(N), but this only happens once. */
1806 1.1 christos
1807 1.1 christos static struct elfNN_ia64_dyn_sym_info *
1808 1.1 christos get_dyn_sym_info (struct elfNN_ia64_link_hash_table *ia64_info,
1809 1.1 christos struct elf_link_hash_entry *h, bfd *abfd,
1810 1.1 christos const Elf_Internal_Rela *rel, bfd_boolean create)
1811 1.1 christos {
1812 1.1 christos struct elfNN_ia64_dyn_sym_info **info_p, *info, *dyn_i, key;
1813 1.1 christos unsigned int *count_p, *sorted_count_p, *size_p;
1814 1.1 christos unsigned int count, sorted_count, size;
1815 1.1 christos bfd_vma addend = rel ? rel->r_addend : 0;
1816 1.1 christos bfd_size_type amt;
1817 1.1 christos
1818 1.1 christos if (h)
1819 1.1 christos {
1820 1.1 christos struct elfNN_ia64_link_hash_entry *global_h;
1821 1.1 christos
1822 1.1 christos global_h = (struct elfNN_ia64_link_hash_entry *) h;
1823 1.1 christos info_p = &global_h->info;
1824 1.1 christos count_p = &global_h->count;
1825 1.1 christos sorted_count_p = &global_h->sorted_count;
1826 1.1 christos size_p = &global_h->size;
1827 1.1 christos }
1828 1.1 christos else
1829 1.1 christos {
1830 1.1 christos struct elfNN_ia64_local_hash_entry *loc_h;
1831 1.1 christos
1832 1.1 christos loc_h = get_local_sym_hash (ia64_info, abfd, rel, create);
1833 1.1 christos if (!loc_h)
1834 1.1 christos {
1835 1.1 christos BFD_ASSERT (!create);
1836 1.1 christos return NULL;
1837 1.1 christos }
1838 1.1 christos
1839 1.1 christos info_p = &loc_h->info;
1840 1.1 christos count_p = &loc_h->count;
1841 1.1 christos sorted_count_p = &loc_h->sorted_count;
1842 1.1 christos size_p = &loc_h->size;
1843 1.1 christos }
1844 1.1 christos
1845 1.1 christos count = *count_p;
1846 1.1 christos sorted_count = *sorted_count_p;
1847 1.1 christos size = *size_p;
1848 1.1 christos info = *info_p;
1849 1.1 christos if (create)
1850 1.1 christos {
1851 1.1 christos /* When we create the array, we don't check for duplicates,
1852 1.1 christos except in the previously sorted section if one exists, and
1853 1.1 christos against the last inserted entry. This allows insertions to
1854 1.1 christos be fast. */
1855 1.1 christos if (info)
1856 1.1 christos {
1857 1.1 christos if (sorted_count)
1858 1.1 christos {
1859 1.1 christos /* Try bsearch first on the sorted section. */
1860 1.1 christos key.addend = addend;
1861 1.1 christos dyn_i = bsearch (&key, info, sorted_count,
1862 1.1 christos sizeof (*info), addend_compare);
1863 1.1 christos
1864 1.1 christos if (dyn_i)
1865 1.1 christos {
1866 1.1 christos return dyn_i;
1867 1.1 christos }
1868 1.1 christos }
1869 1.1 christos
1870 1.1 christos /* Do a quick check for the last inserted entry. */
1871 1.1 christos dyn_i = info + count - 1;
1872 1.1 christos if (dyn_i->addend == addend)
1873 1.1 christos {
1874 1.1 christos return dyn_i;
1875 1.1 christos }
1876 1.1 christos }
1877 1.1 christos
1878 1.1 christos if (size == 0)
1879 1.1 christos {
1880 1.1 christos /* It is the very first element. We create the array of size
1881 1.1 christos 1. */
1882 1.1 christos size = 1;
1883 1.1 christos amt = size * sizeof (*info);
1884 1.1 christos info = bfd_malloc (amt);
1885 1.1 christos }
1886 1.1 christos else if (size <= count)
1887 1.1 christos {
1888 1.1 christos /* We double the array size every time when we reach the
1889 1.1 christos size limit. */
1890 1.1 christos size += size;
1891 1.1 christos amt = size * sizeof (*info);
1892 1.1 christos info = bfd_realloc (info, amt);
1893 1.1 christos }
1894 1.1 christos else
1895 1.1 christos goto has_space;
1896 1.1 christos
1897 1.1 christos if (info == NULL)
1898 1.1 christos return NULL;
1899 1.1 christos *size_p = size;
1900 1.1 christos *info_p = info;
1901 1.1 christos
1902 1.1 christos has_space:
1903 1.1 christos /* Append the new one to the array. */
1904 1.1 christos dyn_i = info + count;
1905 1.1 christos memset (dyn_i, 0, sizeof (*dyn_i));
1906 1.1 christos dyn_i->got_offset = (bfd_vma) -1;
1907 1.1 christos dyn_i->addend = addend;
1908 1.1 christos
1909 1.1 christos /* We increment count only since the new ones are unsorted and
1910 1.1 christos may have duplicate. */
1911 1.1 christos (*count_p)++;
1912 1.1 christos }
1913 1.1 christos else
1914 1.1 christos {
1915 1.1 christos /* It is a lookup without insertion. Sort array if part of the
1916 1.1 christos array isn't sorted. */
1917 1.1 christos if (count != sorted_count)
1918 1.1 christos {
1919 1.1 christos count = sort_dyn_sym_info (info, count);
1920 1.1 christos *count_p = count;
1921 1.1 christos *sorted_count_p = count;
1922 1.1 christos }
1923 1.1 christos
1924 1.1 christos /* Free unused memory. */
1925 1.1 christos if (size != count)
1926 1.1 christos {
1927 1.1 christos amt = count * sizeof (*info);
1928 1.1 christos info = bfd_malloc (amt);
1929 1.1 christos if (info != NULL)
1930 1.1 christos {
1931 1.1 christos memcpy (info, *info_p, amt);
1932 1.1 christos free (*info_p);
1933 1.1 christos *size_p = count;
1934 1.1 christos *info_p = info;
1935 1.1 christos }
1936 1.1 christos }
1937 1.1 christos
1938 1.1 christos key.addend = addend;
1939 1.1 christos dyn_i = bsearch (&key, info, count,
1940 1.1 christos sizeof (*info), addend_compare);
1941 1.1 christos }
1942 1.1 christos
1943 1.1 christos return dyn_i;
1944 1.1 christos }
1945 1.1 christos
1946 1.1 christos static asection *
1947 1.1 christos get_got (bfd *abfd, struct bfd_link_info *info,
1948 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info)
1949 1.1 christos {
1950 1.1 christos asection *got;
1951 1.1 christos bfd *dynobj;
1952 1.1 christos
1953 1.1 christos got = ia64_info->root.sgot;
1954 1.1 christos if (!got)
1955 1.1 christos {
1956 1.1.1.2 christos flagword flags;
1957 1.1 christos
1958 1.1 christos dynobj = ia64_info->root.dynobj;
1959 1.1 christos if (!dynobj)
1960 1.1 christos ia64_info->root.dynobj = dynobj = abfd;
1961 1.1 christos if (!_bfd_elf_create_got_section (dynobj, info))
1962 1.1.1.2 christos return NULL;
1963 1.1 christos
1964 1.1 christos got = ia64_info->root.sgot;
1965 1.1.1.2 christos
1966 1.1.1.2 christos /* The .got section is always aligned at 8 bytes. */
1967 1.1 christos if (!bfd_set_section_alignment (abfd, got, 3))
1968 1.1 christos return NULL;
1969 1.1 christos
1970 1.1 christos flags = bfd_get_section_flags (abfd, got);
1971 1.1 christos if (! bfd_set_section_flags (abfd, got, SEC_SMALL_DATA | flags))
1972 1.1 christos return NULL;
1973 1.1 christos }
1974 1.1 christos
1975 1.1 christos return got;
1976 1.1 christos }
1977 1.1 christos
1978 1.1 christos /* Create function descriptor section (.opd). This section is called .opd
1979 1.1 christos because it contains "official procedure descriptors". The "official"
1980 1.1 christos refers to the fact that these descriptors are used when taking the address
1981 1.1 christos of a procedure, thus ensuring a unique address for each procedure. */
1982 1.1 christos
1983 1.1 christos static asection *
1984 1.1 christos get_fptr (bfd *abfd, struct bfd_link_info *info,
1985 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info)
1986 1.1 christos {
1987 1.1 christos asection *fptr;
1988 1.1 christos bfd *dynobj;
1989 1.1 christos
1990 1.1 christos fptr = ia64_info->fptr_sec;
1991 1.1 christos if (!fptr)
1992 1.1 christos {
1993 1.1 christos dynobj = ia64_info->root.dynobj;
1994 1.1 christos if (!dynobj)
1995 1.1 christos ia64_info->root.dynobj = dynobj = abfd;
1996 1.1.1.4 christos
1997 1.1.1.4 christos fptr = bfd_make_section_anyway_with_flags (dynobj, ".opd",
1998 1.1 christos (SEC_ALLOC
1999 1.1 christos | SEC_LOAD
2000 1.1 christos | SEC_HAS_CONTENTS
2001 1.1 christos | SEC_IN_MEMORY
2002 1.1 christos | (bfd_link_pie (info)
2003 1.1 christos ? 0 : SEC_READONLY)
2004 1.1 christos | SEC_LINKER_CREATED));
2005 1.1 christos if (!fptr
2006 1.1 christos || !bfd_set_section_alignment (abfd, fptr, 4))
2007 1.1 christos {
2008 1.1.1.4 christos BFD_ASSERT (0);
2009 1.1 christos return NULL;
2010 1.1 christos }
2011 1.1 christos
2012 1.1 christos ia64_info->fptr_sec = fptr;
2013 1.1 christos
2014 1.1 christos if (bfd_link_pie (info))
2015 1.1 christos {
2016 1.1 christos asection *fptr_rel;
2017 1.1 christos fptr_rel = bfd_make_section_anyway_with_flags (dynobj, ".rela.opd",
2018 1.1 christos (SEC_ALLOC | SEC_LOAD
2019 1.1 christos | SEC_HAS_CONTENTS
2020 1.1 christos | SEC_IN_MEMORY
2021 1.1 christos | SEC_LINKER_CREATED
2022 1.1 christos | SEC_READONLY));
2023 1.1 christos if (fptr_rel == NULL
2024 1.1 christos || !bfd_set_section_alignment (abfd, fptr_rel,
2025 1.1 christos LOG_SECTION_ALIGN))
2026 1.1 christos {
2027 1.1 christos BFD_ASSERT (0);
2028 1.1 christos return NULL;
2029 1.1 christos }
2030 1.1 christos
2031 1.1 christos ia64_info->rel_fptr_sec = fptr_rel;
2032 1.1 christos }
2033 1.1 christos }
2034 1.1 christos
2035 1.1 christos return fptr;
2036 1.1 christos }
2037 1.1 christos
2038 1.1 christos static asection *
2039 1.1 christos get_pltoff (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED,
2040 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info)
2041 1.1 christos {
2042 1.1 christos asection *pltoff;
2043 1.1 christos bfd *dynobj;
2044 1.1 christos
2045 1.1 christos pltoff = ia64_info->pltoff_sec;
2046 1.1 christos if (!pltoff)
2047 1.1 christos {
2048 1.1 christos dynobj = ia64_info->root.dynobj;
2049 1.1 christos if (!dynobj)
2050 1.1 christos ia64_info->root.dynobj = dynobj = abfd;
2051 1.1 christos
2052 1.1 christos pltoff = bfd_make_section_anyway_with_flags (dynobj,
2053 1.1 christos ELF_STRING_ia64_pltoff,
2054 1.1 christos (SEC_ALLOC
2055 1.1 christos | SEC_LOAD
2056 1.1 christos | SEC_HAS_CONTENTS
2057 1.1 christos | SEC_IN_MEMORY
2058 1.1 christos | SEC_SMALL_DATA
2059 1.1 christos | SEC_LINKER_CREATED));
2060 1.1 christos if (!pltoff
2061 1.1 christos || !bfd_set_section_alignment (abfd, pltoff, 4))
2062 1.1 christos {
2063 1.1 christos BFD_ASSERT (0);
2064 1.1 christos return NULL;
2065 1.1 christos }
2066 1.1 christos
2067 1.1 christos ia64_info->pltoff_sec = pltoff;
2068 1.1 christos }
2069 1.1 christos
2070 1.1 christos return pltoff;
2071 1.1 christos }
2072 1.1 christos
2073 1.1 christos static asection *
2074 1.1 christos get_reloc_section (bfd *abfd,
2075 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info,
2076 1.1 christos asection *sec, bfd_boolean create)
2077 1.1 christos {
2078 1.1 christos const char *srel_name;
2079 1.1 christos asection *srel;
2080 1.1 christos bfd *dynobj;
2081 1.1 christos
2082 1.1 christos srel_name = (bfd_elf_string_from_elf_section
2083 1.1 christos (abfd, elf_elfheader(abfd)->e_shstrndx,
2084 1.1 christos _bfd_elf_single_rel_hdr (sec)->sh_name));
2085 1.1 christos if (srel_name == NULL)
2086 1.1 christos return NULL;
2087 1.1 christos
2088 1.1 christos dynobj = ia64_info->root.dynobj;
2089 1.1 christos if (!dynobj)
2090 1.1 christos ia64_info->root.dynobj = dynobj = abfd;
2091 1.1 christos
2092 1.1 christos srel = bfd_get_linker_section (dynobj, srel_name);
2093 1.1 christos if (srel == NULL && create)
2094 1.1 christos {
2095 1.1 christos srel = bfd_make_section_anyway_with_flags (dynobj, srel_name,
2096 1.1 christos (SEC_ALLOC | SEC_LOAD
2097 1.1 christos | SEC_HAS_CONTENTS
2098 1.1 christos | SEC_IN_MEMORY
2099 1.1 christos | SEC_LINKER_CREATED
2100 1.1 christos | SEC_READONLY));
2101 1.1 christos if (srel == NULL
2102 1.1 christos || !bfd_set_section_alignment (dynobj, srel,
2103 1.1 christos LOG_SECTION_ALIGN))
2104 1.1 christos return NULL;
2105 1.1 christos }
2106 1.1 christos
2107 1.1 christos return srel;
2108 1.1 christos }
2109 1.1 christos
2110 1.1 christos static bfd_boolean
2111 1.1 christos count_dyn_reloc (bfd *abfd, struct elfNN_ia64_dyn_sym_info *dyn_i,
2112 1.1 christos asection *srel, int type, bfd_boolean reltext)
2113 1.1 christos {
2114 1.1 christos struct elfNN_ia64_dyn_reloc_entry *rent;
2115 1.1 christos
2116 1.1 christos for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
2117 1.1 christos if (rent->srel == srel && rent->type == type)
2118 1.1 christos break;
2119 1.1 christos
2120 1.1 christos if (!rent)
2121 1.1 christos {
2122 1.1 christos rent = ((struct elfNN_ia64_dyn_reloc_entry *)
2123 1.1 christos bfd_alloc (abfd, (bfd_size_type) sizeof (*rent)));
2124 1.1 christos if (!rent)
2125 1.1 christos return FALSE;
2126 1.1 christos
2127 1.1 christos rent->next = dyn_i->reloc_entries;
2128 1.1 christos rent->srel = srel;
2129 1.1 christos rent->type = type;
2130 1.1 christos rent->count = 0;
2131 1.1 christos dyn_i->reloc_entries = rent;
2132 1.1 christos }
2133 1.1 christos rent->reltext = reltext;
2134 1.1 christos rent->count++;
2135 1.1 christos
2136 1.1 christos return TRUE;
2137 1.1 christos }
2138 1.1 christos
2139 1.1 christos static bfd_boolean
2140 1.1 christos elfNN_ia64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2141 1.1 christos asection *sec,
2142 1.1 christos const Elf_Internal_Rela *relocs)
2143 1.1 christos {
2144 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
2145 1.1 christos const Elf_Internal_Rela *relend;
2146 1.1 christos Elf_Internal_Shdr *symtab_hdr;
2147 1.1 christos const Elf_Internal_Rela *rel;
2148 1.1 christos asection *got, *fptr, *srel, *pltoff;
2149 1.1 christos enum {
2150 1.1 christos NEED_GOT = 1,
2151 1.1 christos NEED_GOTX = 2,
2152 1.1 christos NEED_FPTR = 4,
2153 1.1 christos NEED_PLTOFF = 8,
2154 1.1 christos NEED_MIN_PLT = 16,
2155 1.1 christos NEED_FULL_PLT = 32,
2156 1.1 christos NEED_DYNREL = 64,
2157 1.1 christos NEED_LTOFF_FPTR = 128,
2158 1.1 christos NEED_TPREL = 256,
2159 1.1 christos NEED_DTPMOD = 512,
2160 1.1 christos NEED_DTPREL = 1024
2161 1.1.1.4 christos };
2162 1.1 christos int need_entry;
2163 1.1 christos struct elf_link_hash_entry *h;
2164 1.1 christos unsigned long r_symndx;
2165 1.1 christos bfd_boolean maybe_dynamic;
2166 1.1 christos
2167 1.1 christos if (bfd_link_relocatable (info))
2168 1.1 christos return TRUE;
2169 1.1 christos
2170 1.1 christos symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2171 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
2172 1.1 christos if (ia64_info == NULL)
2173 1.1 christos return FALSE;
2174 1.1 christos
2175 1.1 christos got = fptr = srel = pltoff = NULL;
2176 1.1 christos
2177 1.1 christos relend = relocs + sec->reloc_count;
2178 1.1 christos
2179 1.1 christos /* We scan relocations first to create dynamic relocation arrays. We
2180 1.1 christos modified get_dyn_sym_info to allow fast insertion and support fast
2181 1.1 christos lookup in the next loop. */
2182 1.1 christos for (rel = relocs; rel < relend; ++rel)
2183 1.1 christos {
2184 1.1 christos r_symndx = ELFNN_R_SYM (rel->r_info);
2185 1.1 christos if (r_symndx >= symtab_hdr->sh_info)
2186 1.1 christos {
2187 1.1 christos long indx = r_symndx - symtab_hdr->sh_info;
2188 1.1 christos h = elf_sym_hashes (abfd)[indx];
2189 1.1 christos while (h->root.type == bfd_link_hash_indirect
2190 1.1 christos || h->root.type == bfd_link_hash_warning)
2191 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
2192 1.1 christos }
2193 1.1 christos else
2194 1.1.1.4 christos h = NULL;
2195 1.1 christos
2196 1.1 christos /* We can only get preliminary data on whether a symbol is
2197 1.1 christos locally or externally defined, as not all of the input files
2198 1.1 christos have yet been processed. Do something with what we know, as
2199 1.1 christos this may help reduce memory usage and processing time later. */
2200 1.1 christos maybe_dynamic = (h && ((!bfd_link_executable (info)
2201 1.1 christos && (!SYMBOLIC_BIND (info, h)
2202 1.1 christos || info->unresolved_syms_in_shared_libs == RM_IGNORE))
2203 1.1 christos || !h->def_regular
2204 1.1 christos || h->root.type == bfd_link_hash_defweak));
2205 1.1.1.4 christos
2206 1.1 christos need_entry = 0;
2207 1.1 christos switch (ELFNN_R_TYPE (rel->r_info))
2208 1.1 christos {
2209 1.1 christos case R_IA64_TPREL64MSB:
2210 1.1 christos case R_IA64_TPREL64LSB:
2211 1.1.1.4 christos if (bfd_link_pic (info) || maybe_dynamic)
2212 1.1 christos need_entry = NEED_DYNREL;
2213 1.1 christos break;
2214 1.1 christos
2215 1.1 christos case R_IA64_LTOFF_TPREL22:
2216 1.1 christos need_entry = NEED_TPREL;
2217 1.1 christos if (bfd_link_pic (info))
2218 1.1 christos info->flags |= DF_STATIC_TLS;
2219 1.1.1.4 christos break;
2220 1.1 christos
2221 1.1 christos case R_IA64_DTPREL32MSB:
2222 1.1 christos case R_IA64_DTPREL32LSB:
2223 1.1 christos case R_IA64_DTPREL64MSB:
2224 1.1 christos case R_IA64_DTPREL64LSB:
2225 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2226 1.1 christos need_entry = NEED_DYNREL;
2227 1.1 christos break;
2228 1.1 christos
2229 1.1.1.4 christos case R_IA64_LTOFF_DTPREL22:
2230 1.1 christos need_entry = NEED_DTPREL;
2231 1.1 christos break;
2232 1.1 christos
2233 1.1 christos case R_IA64_DTPMOD64MSB:
2234 1.1 christos case R_IA64_DTPMOD64LSB:
2235 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2236 1.1 christos need_entry = NEED_DYNREL;
2237 1.1 christos break;
2238 1.1 christos
2239 1.1 christos case R_IA64_LTOFF_DTPMOD22:
2240 1.1 christos need_entry = NEED_DTPMOD;
2241 1.1 christos break;
2242 1.1 christos
2243 1.1 christos case R_IA64_LTOFF_FPTR22:
2244 1.1 christos case R_IA64_LTOFF_FPTR64I:
2245 1.1 christos case R_IA64_LTOFF_FPTR32MSB:
2246 1.1 christos case R_IA64_LTOFF_FPTR32LSB:
2247 1.1 christos case R_IA64_LTOFF_FPTR64MSB:
2248 1.1 christos case R_IA64_LTOFF_FPTR64LSB:
2249 1.1 christos need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR;
2250 1.1 christos break;
2251 1.1.1.4 christos
2252 1.1 christos case R_IA64_FPTR64I:
2253 1.1 christos case R_IA64_FPTR32MSB:
2254 1.1 christos case R_IA64_FPTR32LSB:
2255 1.1 christos case R_IA64_FPTR64MSB:
2256 1.1 christos case R_IA64_FPTR64LSB:
2257 1.1 christos if (bfd_link_pic (info) || h)
2258 1.1 christos need_entry = NEED_FPTR | NEED_DYNREL;
2259 1.1 christos else
2260 1.1 christos need_entry = NEED_FPTR;
2261 1.1 christos break;
2262 1.1 christos
2263 1.1 christos case R_IA64_LTOFF22:
2264 1.1 christos case R_IA64_LTOFF64I:
2265 1.1 christos need_entry = NEED_GOT;
2266 1.1 christos break;
2267 1.1 christos
2268 1.1 christos case R_IA64_LTOFF22X:
2269 1.1 christos need_entry = NEED_GOTX;
2270 1.1 christos break;
2271 1.1 christos
2272 1.1 christos case R_IA64_PLTOFF22:
2273 1.1 christos case R_IA64_PLTOFF64I:
2274 1.1 christos case R_IA64_PLTOFF64MSB:
2275 1.1 christos case R_IA64_PLTOFF64LSB:
2276 1.1 christos need_entry = NEED_PLTOFF;
2277 1.1 christos if (h)
2278 1.1 christos {
2279 1.1 christos if (maybe_dynamic)
2280 1.1 christos need_entry |= NEED_MIN_PLT;
2281 1.1 christos }
2282 1.1 christos else
2283 1.1 christos {
2284 1.1 christos (*info->callbacks->warning)
2285 1.1 christos (info, _("@pltoff reloc against local symbol"), 0,
2286 1.1 christos abfd, 0, (bfd_vma) 0);
2287 1.1 christos }
2288 1.1 christos break;
2289 1.1 christos
2290 1.1 christos case R_IA64_PCREL21B:
2291 1.1 christos case R_IA64_PCREL60B:
2292 1.1 christos /* Depending on where this symbol is defined, we may or may not
2293 1.1 christos need a full plt entry. Only skip if we know we'll not need
2294 1.1 christos the entry -- static or symbolic, and the symbol definition
2295 1.1 christos has already been seen. */
2296 1.1 christos if (maybe_dynamic && rel->r_addend == 0)
2297 1.1 christos need_entry = NEED_FULL_PLT;
2298 1.1 christos break;
2299 1.1 christos
2300 1.1 christos case R_IA64_IMM14:
2301 1.1 christos case R_IA64_IMM22:
2302 1.1.1.4 christos case R_IA64_IMM64:
2303 1.1 christos case R_IA64_DIR32MSB:
2304 1.1 christos case R_IA64_DIR32LSB:
2305 1.1 christos case R_IA64_DIR64MSB:
2306 1.1 christos case R_IA64_DIR64LSB:
2307 1.1 christos /* Shared objects will always need at least a REL relocation. */
2308 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2309 1.1.1.4 christos need_entry = NEED_DYNREL;
2310 1.1 christos break;
2311 1.1 christos
2312 1.1 christos case R_IA64_IPLTMSB:
2313 1.1 christos case R_IA64_IPLTLSB:
2314 1.1 christos /* Shared objects will always need at least a REL relocation. */
2315 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2316 1.1 christos need_entry = NEED_DYNREL;
2317 1.1 christos break;
2318 1.1 christos
2319 1.1 christos case R_IA64_PCREL22:
2320 1.1 christos case R_IA64_PCREL64I:
2321 1.1 christos case R_IA64_PCREL32MSB:
2322 1.1 christos case R_IA64_PCREL32LSB:
2323 1.1 christos case R_IA64_PCREL64MSB:
2324 1.1 christos case R_IA64_PCREL64LSB:
2325 1.1 christos if (maybe_dynamic)
2326 1.1 christos need_entry = NEED_DYNREL;
2327 1.1 christos break;
2328 1.1 christos }
2329 1.1 christos
2330 1.1 christos if (!need_entry)
2331 1.1 christos continue;
2332 1.1 christos
2333 1.1 christos if ((need_entry & NEED_FPTR) != 0
2334 1.1 christos && rel->r_addend)
2335 1.1 christos {
2336 1.1 christos (*info->callbacks->warning)
2337 1.1 christos (info, _("non-zero addend in @fptr reloc"), 0,
2338 1.1 christos abfd, 0, (bfd_vma) 0);
2339 1.1 christos }
2340 1.1 christos
2341 1.1 christos if (get_dyn_sym_info (ia64_info, h, abfd, rel, TRUE) == NULL)
2342 1.1 christos return FALSE;
2343 1.1 christos }
2344 1.1 christos
2345 1.1 christos /* Now, we only do lookup without insertion, which is very fast
2346 1.1 christos with the modified get_dyn_sym_info. */
2347 1.1 christos for (rel = relocs; rel < relend; ++rel)
2348 1.1 christos {
2349 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
2350 1.1 christos int dynrel_type = R_IA64_NONE;
2351 1.1 christos
2352 1.1 christos r_symndx = ELFNN_R_SYM (rel->r_info);
2353 1.1 christos if (r_symndx >= symtab_hdr->sh_info)
2354 1.1 christos {
2355 1.1 christos /* We're dealing with a global symbol -- find its hash entry
2356 1.1 christos and mark it as being referenced. */
2357 1.1.1.2 christos long indx = r_symndx - symtab_hdr->sh_info;
2358 1.1.1.2 christos h = elf_sym_hashes (abfd)[indx];
2359 1.1.1.2 christos while (h->root.type == bfd_link_hash_indirect
2360 1.1 christos || h->root.type == bfd_link_hash_warning)
2361 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
2362 1.1 christos
2363 1.1 christos /* PR15323, ref flags aren't set for references in the same
2364 1.1 christos object. */
2365 1.1 christos h->root.non_ir_ref = 1;
2366 1.1 christos h->ref_regular = 1;
2367 1.1 christos }
2368 1.1 christos else
2369 1.1.1.4 christos h = NULL;
2370 1.1 christos
2371 1.1 christos /* We can only get preliminary data on whether a symbol is
2372 1.1 christos locally or externally defined, as not all of the input files
2373 1.1 christos have yet been processed. Do something with what we know, as
2374 1.1 christos this may help reduce memory usage and processing time later. */
2375 1.1 christos maybe_dynamic = (h && ((!bfd_link_executable (info)
2376 1.1 christos && (!SYMBOLIC_BIND (info, h)
2377 1.1 christos || info->unresolved_syms_in_shared_libs == RM_IGNORE))
2378 1.1 christos || !h->def_regular
2379 1.1 christos || h->root.type == bfd_link_hash_defweak));
2380 1.1.1.4 christos
2381 1.1 christos need_entry = 0;
2382 1.1 christos switch (ELFNN_R_TYPE (rel->r_info))
2383 1.1.1.4 christos {
2384 1.1 christos case R_IA64_TPREL64MSB:
2385 1.1 christos case R_IA64_TPREL64LSB:
2386 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2387 1.1 christos need_entry = NEED_DYNREL;
2388 1.1 christos dynrel_type = R_IA64_TPREL64LSB;
2389 1.1.1.4 christos if (bfd_link_pic (info))
2390 1.1 christos info->flags |= DF_STATIC_TLS;
2391 1.1 christos break;
2392 1.1 christos
2393 1.1 christos case R_IA64_LTOFF_TPREL22:
2394 1.1 christos need_entry = NEED_TPREL;
2395 1.1 christos if (bfd_link_pic (info))
2396 1.1 christos info->flags |= DF_STATIC_TLS;
2397 1.1.1.4 christos break;
2398 1.1 christos
2399 1.1 christos case R_IA64_DTPREL32MSB:
2400 1.1 christos case R_IA64_DTPREL32LSB:
2401 1.1 christos case R_IA64_DTPREL64MSB:
2402 1.1 christos case R_IA64_DTPREL64LSB:
2403 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2404 1.1 christos need_entry = NEED_DYNREL;
2405 1.1 christos dynrel_type = R_IA64_DTPRELNNLSB;
2406 1.1 christos break;
2407 1.1 christos
2408 1.1.1.4 christos case R_IA64_LTOFF_DTPREL22:
2409 1.1 christos need_entry = NEED_DTPREL;
2410 1.1 christos break;
2411 1.1 christos
2412 1.1 christos case R_IA64_DTPMOD64MSB:
2413 1.1 christos case R_IA64_DTPMOD64LSB:
2414 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2415 1.1 christos need_entry = NEED_DYNREL;
2416 1.1 christos dynrel_type = R_IA64_DTPMOD64LSB;
2417 1.1 christos break;
2418 1.1 christos
2419 1.1 christos case R_IA64_LTOFF_DTPMOD22:
2420 1.1 christos need_entry = NEED_DTPMOD;
2421 1.1 christos break;
2422 1.1 christos
2423 1.1 christos case R_IA64_LTOFF_FPTR22:
2424 1.1 christos case R_IA64_LTOFF_FPTR64I:
2425 1.1 christos case R_IA64_LTOFF_FPTR32MSB:
2426 1.1 christos case R_IA64_LTOFF_FPTR32LSB:
2427 1.1 christos case R_IA64_LTOFF_FPTR64MSB:
2428 1.1 christos case R_IA64_LTOFF_FPTR64LSB:
2429 1.1 christos need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR;
2430 1.1 christos break;
2431 1.1.1.4 christos
2432 1.1 christos case R_IA64_FPTR64I:
2433 1.1 christos case R_IA64_FPTR32MSB:
2434 1.1 christos case R_IA64_FPTR32LSB:
2435 1.1 christos case R_IA64_FPTR64MSB:
2436 1.1 christos case R_IA64_FPTR64LSB:
2437 1.1 christos if (bfd_link_pic (info) || h)
2438 1.1 christos need_entry = NEED_FPTR | NEED_DYNREL;
2439 1.1 christos else
2440 1.1 christos need_entry = NEED_FPTR;
2441 1.1 christos dynrel_type = R_IA64_FPTRNNLSB;
2442 1.1 christos break;
2443 1.1 christos
2444 1.1 christos case R_IA64_LTOFF22:
2445 1.1 christos case R_IA64_LTOFF64I:
2446 1.1 christos need_entry = NEED_GOT;
2447 1.1 christos break;
2448 1.1 christos
2449 1.1 christos case R_IA64_LTOFF22X:
2450 1.1 christos need_entry = NEED_GOTX;
2451 1.1 christos break;
2452 1.1 christos
2453 1.1 christos case R_IA64_PLTOFF22:
2454 1.1 christos case R_IA64_PLTOFF64I:
2455 1.1 christos case R_IA64_PLTOFF64MSB:
2456 1.1 christos case R_IA64_PLTOFF64LSB:
2457 1.1 christos need_entry = NEED_PLTOFF;
2458 1.1 christos if (h)
2459 1.1 christos {
2460 1.1 christos if (maybe_dynamic)
2461 1.1 christos need_entry |= NEED_MIN_PLT;
2462 1.1 christos }
2463 1.1 christos break;
2464 1.1 christos
2465 1.1 christos case R_IA64_PCREL21B:
2466 1.1 christos case R_IA64_PCREL60B:
2467 1.1 christos /* Depending on where this symbol is defined, we may or may not
2468 1.1 christos need a full plt entry. Only skip if we know we'll not need
2469 1.1 christos the entry -- static or symbolic, and the symbol definition
2470 1.1 christos has already been seen. */
2471 1.1 christos if (maybe_dynamic && rel->r_addend == 0)
2472 1.1 christos need_entry = NEED_FULL_PLT;
2473 1.1 christos break;
2474 1.1 christos
2475 1.1 christos case R_IA64_IMM14:
2476 1.1 christos case R_IA64_IMM22:
2477 1.1.1.4 christos case R_IA64_IMM64:
2478 1.1 christos case R_IA64_DIR32MSB:
2479 1.1 christos case R_IA64_DIR32LSB:
2480 1.1 christos case R_IA64_DIR64MSB:
2481 1.1 christos case R_IA64_DIR64LSB:
2482 1.1 christos /* Shared objects will always need at least a REL relocation. */
2483 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2484 1.1 christos need_entry = NEED_DYNREL;
2485 1.1.1.4 christos dynrel_type = R_IA64_DIRNNLSB;
2486 1.1 christos break;
2487 1.1 christos
2488 1.1 christos case R_IA64_IPLTMSB:
2489 1.1 christos case R_IA64_IPLTLSB:
2490 1.1 christos /* Shared objects will always need at least a REL relocation. */
2491 1.1 christos if (bfd_link_pic (info) || maybe_dynamic)
2492 1.1 christos need_entry = NEED_DYNREL;
2493 1.1 christos dynrel_type = R_IA64_IPLTLSB;
2494 1.1 christos break;
2495 1.1 christos
2496 1.1 christos case R_IA64_PCREL22:
2497 1.1 christos case R_IA64_PCREL64I:
2498 1.1 christos case R_IA64_PCREL32MSB:
2499 1.1 christos case R_IA64_PCREL32LSB:
2500 1.1 christos case R_IA64_PCREL64MSB:
2501 1.1 christos case R_IA64_PCREL64LSB:
2502 1.1 christos if (maybe_dynamic)
2503 1.1 christos need_entry = NEED_DYNREL;
2504 1.1 christos dynrel_type = R_IA64_PCRELNNLSB;
2505 1.1 christos break;
2506 1.1 christos }
2507 1.1 christos
2508 1.1 christos if (!need_entry)
2509 1.1 christos continue;
2510 1.1 christos
2511 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, abfd, rel, FALSE);
2512 1.1 christos
2513 1.1 christos /* Record whether or not this is a local symbol. */
2514 1.1 christos dyn_i->h = h;
2515 1.1 christos
2516 1.1 christos /* Create what's needed. */
2517 1.1 christos if (need_entry & (NEED_GOT | NEED_GOTX | NEED_TPREL
2518 1.1 christos | NEED_DTPMOD | NEED_DTPREL))
2519 1.1 christos {
2520 1.1 christos if (!got)
2521 1.1 christos {
2522 1.1 christos got = get_got (abfd, info, ia64_info);
2523 1.1 christos if (!got)
2524 1.1 christos return FALSE;
2525 1.1 christos }
2526 1.1 christos if (need_entry & NEED_GOT)
2527 1.1 christos dyn_i->want_got = 1;
2528 1.1 christos if (need_entry & NEED_GOTX)
2529 1.1 christos dyn_i->want_gotx = 1;
2530 1.1 christos if (need_entry & NEED_TPREL)
2531 1.1 christos dyn_i->want_tprel = 1;
2532 1.1 christos if (need_entry & NEED_DTPMOD)
2533 1.1 christos dyn_i->want_dtpmod = 1;
2534 1.1 christos if (need_entry & NEED_DTPREL)
2535 1.1 christos dyn_i->want_dtprel = 1;
2536 1.1 christos }
2537 1.1 christos if (need_entry & NEED_FPTR)
2538 1.1 christos {
2539 1.1 christos if (!fptr)
2540 1.1 christos {
2541 1.1 christos fptr = get_fptr (abfd, info, ia64_info);
2542 1.1 christos if (!fptr)
2543 1.1.1.4 christos return FALSE;
2544 1.1 christos }
2545 1.1 christos
2546 1.1 christos /* FPTRs for shared libraries are allocated by the dynamic
2547 1.1 christos linker. Make sure this local symbol will appear in the
2548 1.1 christos dynamic symbol table. */
2549 1.1 christos if (!h && bfd_link_pic (info))
2550 1.1 christos {
2551 1.1 christos if (! (bfd_elf_link_record_local_dynamic_symbol
2552 1.1 christos (info, abfd, (long) r_symndx)))
2553 1.1 christos return FALSE;
2554 1.1 christos }
2555 1.1 christos
2556 1.1 christos dyn_i->want_fptr = 1;
2557 1.1 christos }
2558 1.1 christos if (need_entry & NEED_LTOFF_FPTR)
2559 1.1 christos dyn_i->want_ltoff_fptr = 1;
2560 1.1 christos if (need_entry & (NEED_MIN_PLT | NEED_FULL_PLT))
2561 1.1 christos {
2562 1.1 christos if (!ia64_info->root.dynobj)
2563 1.1 christos ia64_info->root.dynobj = abfd;
2564 1.1 christos h->needs_plt = 1;
2565 1.1 christos dyn_i->want_plt = 1;
2566 1.1 christos }
2567 1.1 christos if (need_entry & NEED_FULL_PLT)
2568 1.1 christos dyn_i->want_plt2 = 1;
2569 1.1 christos if (need_entry & NEED_PLTOFF)
2570 1.1 christos {
2571 1.1 christos /* This is needed here, in case @pltoff is used in a non-shared
2572 1.1 christos link. */
2573 1.1 christos if (!pltoff)
2574 1.1 christos {
2575 1.1 christos pltoff = get_pltoff (abfd, info, ia64_info);
2576 1.1 christos if (!pltoff)
2577 1.1 christos return FALSE;
2578 1.1 christos }
2579 1.1 christos
2580 1.1 christos dyn_i->want_pltoff = 1;
2581 1.1 christos }
2582 1.1 christos if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC))
2583 1.1 christos {
2584 1.1 christos if (!srel)
2585 1.1 christos {
2586 1.1 christos srel = get_reloc_section (abfd, ia64_info, sec, TRUE);
2587 1.1 christos if (!srel)
2588 1.1 christos return FALSE;
2589 1.1 christos }
2590 1.1 christos if (!count_dyn_reloc (abfd, dyn_i, srel, dynrel_type,
2591 1.1 christos (sec->flags & SEC_READONLY) != 0))
2592 1.1 christos return FALSE;
2593 1.1 christos }
2594 1.1 christos }
2595 1.1 christos
2596 1.1 christos return TRUE;
2597 1.1 christos }
2598 1.1 christos
2599 1.1 christos /* For cleanliness, and potentially faster dynamic loading, allocate
2600 1.1 christos external GOT entries first. */
2601 1.1 christos
2602 1.1 christos static bfd_boolean
2603 1.1 christos allocate_global_data_got (struct elfNN_ia64_dyn_sym_info *dyn_i,
2604 1.1 christos void * data)
2605 1.1 christos {
2606 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2607 1.1 christos
2608 1.1 christos if ((dyn_i->want_got || dyn_i->want_gotx)
2609 1.1 christos && ! dyn_i->want_fptr
2610 1.1 christos && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2611 1.1 christos {
2612 1.1 christos dyn_i->got_offset = x->ofs;
2613 1.1 christos x->ofs += 8;
2614 1.1 christos }
2615 1.1 christos if (dyn_i->want_tprel)
2616 1.1 christos {
2617 1.1 christos dyn_i->tprel_offset = x->ofs;
2618 1.1 christos x->ofs += 8;
2619 1.1 christos }
2620 1.1 christos if (dyn_i->want_dtpmod)
2621 1.1 christos {
2622 1.1 christos if (elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2623 1.1 christos {
2624 1.1 christos dyn_i->dtpmod_offset = x->ofs;
2625 1.1 christos x->ofs += 8;
2626 1.1 christos }
2627 1.1 christos else
2628 1.1 christos {
2629 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
2630 1.1 christos
2631 1.1 christos ia64_info = elfNN_ia64_hash_table (x->info);
2632 1.1 christos if (ia64_info == NULL)
2633 1.1 christos return FALSE;
2634 1.1 christos
2635 1.1 christos if (ia64_info->self_dtpmod_offset == (bfd_vma) -1)
2636 1.1 christos {
2637 1.1 christos ia64_info->self_dtpmod_offset = x->ofs;
2638 1.1 christos x->ofs += 8;
2639 1.1 christos }
2640 1.1 christos dyn_i->dtpmod_offset = ia64_info->self_dtpmod_offset;
2641 1.1 christos }
2642 1.1 christos }
2643 1.1 christos if (dyn_i->want_dtprel)
2644 1.1 christos {
2645 1.1 christos dyn_i->dtprel_offset = x->ofs;
2646 1.1 christos x->ofs += 8;
2647 1.1 christos }
2648 1.1 christos return TRUE;
2649 1.1 christos }
2650 1.1 christos
2651 1.1 christos /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2652 1.1 christos
2653 1.1 christos static bfd_boolean
2654 1.1 christos allocate_global_fptr_got (struct elfNN_ia64_dyn_sym_info *dyn_i,
2655 1.1 christos void * data)
2656 1.1 christos {
2657 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2658 1.1 christos
2659 1.1 christos if (dyn_i->want_got
2660 1.1 christos && dyn_i->want_fptr
2661 1.1 christos && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, R_IA64_FPTRNNLSB))
2662 1.1 christos {
2663 1.1 christos dyn_i->got_offset = x->ofs;
2664 1.1 christos x->ofs += 8;
2665 1.1 christos }
2666 1.1 christos return TRUE;
2667 1.1 christos }
2668 1.1 christos
2669 1.1 christos /* Lastly, allocate all the GOT entries for local data. */
2670 1.1 christos
2671 1.1 christos static bfd_boolean
2672 1.1 christos allocate_local_got (struct elfNN_ia64_dyn_sym_info *dyn_i,
2673 1.1 christos void * data)
2674 1.1 christos {
2675 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2676 1.1 christos
2677 1.1 christos if ((dyn_i->want_got || dyn_i->want_gotx)
2678 1.1 christos && !elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2679 1.1 christos {
2680 1.1 christos dyn_i->got_offset = x->ofs;
2681 1.1 christos x->ofs += 8;
2682 1.1 christos }
2683 1.1 christos return TRUE;
2684 1.1 christos }
2685 1.1 christos
2686 1.1 christos /* Search for the index of a global symbol in it's defining object file. */
2687 1.1 christos
2688 1.1 christos static long
2689 1.1 christos global_sym_index (struct elf_link_hash_entry *h)
2690 1.1 christos {
2691 1.1 christos struct elf_link_hash_entry **p;
2692 1.1 christos bfd *obj;
2693 1.1 christos
2694 1.1 christos BFD_ASSERT (h->root.type == bfd_link_hash_defined
2695 1.1 christos || h->root.type == bfd_link_hash_defweak);
2696 1.1 christos
2697 1.1 christos obj = h->root.u.def.section->owner;
2698 1.1 christos for (p = elf_sym_hashes (obj); *p != h; ++p)
2699 1.1 christos continue;
2700 1.1 christos
2701 1.1 christos return p - elf_sym_hashes (obj) + elf_tdata (obj)->symtab_hdr.sh_info;
2702 1.1 christos }
2703 1.1 christos
2704 1.1 christos /* Allocate function descriptors. We can do these for every function
2705 1.1 christos in a main executable that is not exported. */
2706 1.1 christos
2707 1.1 christos static bfd_boolean
2708 1.1 christos allocate_fptr (struct elfNN_ia64_dyn_sym_info *dyn_i, void * data)
2709 1.1 christos {
2710 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2711 1.1 christos
2712 1.1 christos if (dyn_i->want_fptr)
2713 1.1 christos {
2714 1.1 christos struct elf_link_hash_entry *h = dyn_i->h;
2715 1.1.1.4 christos
2716 1.1 christos if (h)
2717 1.1 christos while (h->root.type == bfd_link_hash_indirect
2718 1.1 christos || h->root.type == bfd_link_hash_warning)
2719 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
2720 1.1 christos
2721 1.1 christos if (!bfd_link_executable (x->info)
2722 1.1 christos && (!h
2723 1.1 christos || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2724 1.1 christos || (h->root.type != bfd_link_hash_undefweak
2725 1.1 christos && h->root.type != bfd_link_hash_undefined)))
2726 1.1 christos {
2727 1.1 christos if (h && h->dynindx == -1)
2728 1.1 christos {
2729 1.1 christos BFD_ASSERT ((h->root.type == bfd_link_hash_defined)
2730 1.1 christos || (h->root.type == bfd_link_hash_defweak));
2731 1.1 christos
2732 1.1 christos if (!bfd_elf_link_record_local_dynamic_symbol
2733 1.1 christos (x->info, h->root.u.def.section->owner,
2734 1.1 christos global_sym_index (h)))
2735 1.1 christos return FALSE;
2736 1.1 christos }
2737 1.1 christos
2738 1.1 christos dyn_i->want_fptr = 0;
2739 1.1 christos }
2740 1.1 christos else if (h == NULL || h->dynindx == -1)
2741 1.1 christos {
2742 1.1 christos dyn_i->fptr_offset = x->ofs;
2743 1.1 christos x->ofs += 16;
2744 1.1 christos }
2745 1.1 christos else
2746 1.1 christos dyn_i->want_fptr = 0;
2747 1.1 christos }
2748 1.1 christos return TRUE;
2749 1.1 christos }
2750 1.1 christos
2751 1.1 christos /* Allocate all the minimal PLT entries. */
2752 1.1 christos
2753 1.1 christos static bfd_boolean
2754 1.1 christos allocate_plt_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2755 1.1 christos void * data)
2756 1.1 christos {
2757 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2758 1.1 christos
2759 1.1 christos if (dyn_i->want_plt)
2760 1.1 christos {
2761 1.1 christos struct elf_link_hash_entry *h = dyn_i->h;
2762 1.1 christos
2763 1.1 christos if (h)
2764 1.1 christos while (h->root.type == bfd_link_hash_indirect
2765 1.1 christos || h->root.type == bfd_link_hash_warning)
2766 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
2767 1.1 christos
2768 1.1 christos /* ??? Versioned symbols seem to lose NEEDS_PLT. */
2769 1.1 christos if (elfNN_ia64_dynamic_symbol_p (h, x->info, 0))
2770 1.1 christos {
2771 1.1 christos bfd_size_type offset = x->ofs;
2772 1.1 christos if (offset == 0)
2773 1.1 christos offset = PLT_HEADER_SIZE;
2774 1.1 christos dyn_i->plt_offset = offset;
2775 1.1 christos x->ofs = offset + PLT_MIN_ENTRY_SIZE;
2776 1.1 christos
2777 1.1 christos dyn_i->want_pltoff = 1;
2778 1.1 christos }
2779 1.1 christos else
2780 1.1 christos {
2781 1.1 christos dyn_i->want_plt = 0;
2782 1.1 christos dyn_i->want_plt2 = 0;
2783 1.1 christos }
2784 1.1 christos }
2785 1.1 christos return TRUE;
2786 1.1 christos }
2787 1.1 christos
2788 1.1 christos /* Allocate all the full PLT entries. */
2789 1.1 christos
2790 1.1 christos static bfd_boolean
2791 1.1 christos allocate_plt2_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2792 1.1 christos void * data)
2793 1.1 christos {
2794 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2795 1.1 christos
2796 1.1 christos if (dyn_i->want_plt2)
2797 1.1 christos {
2798 1.1 christos struct elf_link_hash_entry *h = dyn_i->h;
2799 1.1 christos bfd_size_type ofs = x->ofs;
2800 1.1 christos
2801 1.1 christos dyn_i->plt2_offset = ofs;
2802 1.1 christos x->ofs = ofs + PLT_FULL_ENTRY_SIZE;
2803 1.1 christos
2804 1.1 christos while (h->root.type == bfd_link_hash_indirect
2805 1.1 christos || h->root.type == bfd_link_hash_warning)
2806 1.1 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
2807 1.1 christos dyn_i->h->plt.offset = ofs;
2808 1.1 christos }
2809 1.1 christos return TRUE;
2810 1.1 christos }
2811 1.1 christos
2812 1.1 christos /* Allocate all the PLTOFF entries requested by relocations and
2813 1.1 christos plt entries. We can't share space with allocated FPTR entries,
2814 1.1 christos because the latter are not necessarily addressable by the GP.
2815 1.1 christos ??? Relaxation might be able to determine that they are. */
2816 1.1 christos
2817 1.1 christos static bfd_boolean
2818 1.1 christos allocate_pltoff_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2819 1.1 christos void * data)
2820 1.1 christos {
2821 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2822 1.1 christos
2823 1.1 christos if (dyn_i->want_pltoff)
2824 1.1 christos {
2825 1.1 christos dyn_i->pltoff_offset = x->ofs;
2826 1.1 christos x->ofs += 16;
2827 1.1 christos }
2828 1.1 christos return TRUE;
2829 1.1 christos }
2830 1.1 christos
2831 1.1 christos /* Allocate dynamic relocations for those symbols that turned out
2832 1.1 christos to be dynamic. */
2833 1.1 christos
2834 1.1 christos static bfd_boolean
2835 1.1 christos allocate_dynrel_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
2836 1.1 christos void * data)
2837 1.1 christos {
2838 1.1 christos struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2839 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
2840 1.1 christos struct elfNN_ia64_dyn_reloc_entry *rent;
2841 1.1 christos bfd_boolean dynamic_symbol, shared, resolved_zero;
2842 1.1 christos
2843 1.1 christos ia64_info = elfNN_ia64_hash_table (x->info);
2844 1.1.1.4 christos if (ia64_info == NULL)
2845 1.1 christos return FALSE;
2846 1.1 christos
2847 1.1 christos /* Note that this can't be used in relation to FPTR relocs below. */
2848 1.1 christos dynamic_symbol = elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0);
2849 1.1 christos
2850 1.1 christos shared = bfd_link_pic (x->info);
2851 1.1 christos resolved_zero = (dyn_i->h
2852 1.1 christos && ELF_ST_VISIBILITY (dyn_i->h->other)
2853 1.1 christos && dyn_i->h->root.type == bfd_link_hash_undefweak);
2854 1.1 christos
2855 1.1 christos /* Take care of the GOT and PLT relocations. */
2856 1.1 christos
2857 1.1 christos if ((!resolved_zero
2858 1.1 christos && (dynamic_symbol || shared)
2859 1.1.1.4 christos && (dyn_i->want_got || dyn_i->want_gotx))
2860 1.1 christos || (dyn_i->want_ltoff_fptr
2861 1.1 christos && dyn_i->h
2862 1.1 christos && dyn_i->h->dynindx != -1))
2863 1.1 christos {
2864 1.1 christos if (!dyn_i->want_ltoff_fptr
2865 1.1 christos || !bfd_link_pie (x->info)
2866 1.1 christos || dyn_i->h == NULL
2867 1.1 christos || dyn_i->h->root.type != bfd_link_hash_undefweak)
2868 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2869 1.1 christos }
2870 1.1 christos if ((dynamic_symbol || shared) && dyn_i->want_tprel)
2871 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2872 1.1 christos if (dynamic_symbol && dyn_i->want_dtpmod)
2873 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2874 1.1 christos if (dynamic_symbol && dyn_i->want_dtprel)
2875 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
2876 1.1 christos
2877 1.1 christos if (x->only_got)
2878 1.1 christos return TRUE;
2879 1.1 christos
2880 1.1 christos if (ia64_info->rel_fptr_sec && dyn_i->want_fptr)
2881 1.1 christos {
2882 1.1 christos if (dyn_i->h == NULL || dyn_i->h->root.type != bfd_link_hash_undefweak)
2883 1.1 christos ia64_info->rel_fptr_sec->size += sizeof (ElfNN_External_Rela);
2884 1.1 christos }
2885 1.1 christos
2886 1.1 christos if (!resolved_zero && dyn_i->want_pltoff)
2887 1.1 christos {
2888 1.1 christos bfd_size_type t = 0;
2889 1.1 christos
2890 1.1 christos /* Dynamic symbols get one IPLT relocation. Local symbols in
2891 1.1 christos shared libraries get two REL relocations. Local symbols in
2892 1.1 christos main applications get nothing. */
2893 1.1 christos if (dynamic_symbol)
2894 1.1 christos t = sizeof (ElfNN_External_Rela);
2895 1.1 christos else if (shared)
2896 1.1 christos t = 2 * sizeof (ElfNN_External_Rela);
2897 1.1 christos
2898 1.1 christos ia64_info->rel_pltoff_sec->size += t;
2899 1.1 christos }
2900 1.1 christos
2901 1.1 christos /* Take care of the normal data relocations. */
2902 1.1 christos
2903 1.1 christos for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
2904 1.1 christos {
2905 1.1 christos int count = rent->count;
2906 1.1 christos
2907 1.1 christos switch (rent->type)
2908 1.1 christos {
2909 1.1.1.4 christos case R_IA64_FPTR32LSB:
2910 1.1 christos case R_IA64_FPTR64LSB:
2911 1.1 christos /* Allocate one iff !want_fptr and not PIE, which by this point
2912 1.1 christos will be true only if we're actually allocating one statically
2913 1.1 christos in the main executable. Position independent executables
2914 1.1 christos need a relative reloc. */
2915 1.1 christos if (dyn_i->want_fptr && !bfd_link_pie (x->info))
2916 1.1 christos continue;
2917 1.1 christos break;
2918 1.1 christos case R_IA64_PCREL32LSB:
2919 1.1 christos case R_IA64_PCREL64LSB:
2920 1.1 christos if (!dynamic_symbol)
2921 1.1 christos continue;
2922 1.1 christos break;
2923 1.1 christos case R_IA64_DIR32LSB:
2924 1.1 christos case R_IA64_DIR64LSB:
2925 1.1 christos if (!dynamic_symbol && !shared)
2926 1.1 christos continue;
2927 1.1 christos break;
2928 1.1 christos case R_IA64_IPLTLSB:
2929 1.1 christos if (!dynamic_symbol && !shared)
2930 1.1 christos continue;
2931 1.1 christos /* Use two REL relocations for IPLT relocations
2932 1.1 christos against local symbols. */
2933 1.1 christos if (!dynamic_symbol)
2934 1.1 christos count *= 2;
2935 1.1 christos break;
2936 1.1 christos case R_IA64_DTPREL32LSB:
2937 1.1 christos case R_IA64_TPREL64LSB:
2938 1.1 christos case R_IA64_DTPREL64LSB:
2939 1.1 christos case R_IA64_DTPMOD64LSB:
2940 1.1 christos break;
2941 1.1 christos default:
2942 1.1 christos abort ();
2943 1.1 christos }
2944 1.1 christos if (rent->reltext)
2945 1.1 christos ia64_info->reltext = 1;
2946 1.1 christos rent->srel->size += sizeof (ElfNN_External_Rela) * count;
2947 1.1 christos }
2948 1.1 christos
2949 1.1 christos return TRUE;
2950 1.1 christos }
2951 1.1 christos
2952 1.1 christos static bfd_boolean
2953 1.1 christos elfNN_ia64_adjust_dynamic_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED,
2954 1.1 christos struct elf_link_hash_entry *h)
2955 1.1 christos {
2956 1.1 christos /* ??? Undefined symbols with PLT entries should be re-defined
2957 1.1 christos to be the PLT entry. */
2958 1.1 christos
2959 1.1 christos /* If this is a weak symbol, and there is a real definition, the
2960 1.1 christos processor independent code will have arranged for us to see the
2961 1.1 christos real definition first, and we can just use the same value. */
2962 1.1 christos if (h->u.weakdef != NULL)
2963 1.1 christos {
2964 1.1 christos BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2965 1.1 christos || h->u.weakdef->root.type == bfd_link_hash_defweak);
2966 1.1 christos h->root.u.def.section = h->u.weakdef->root.u.def.section;
2967 1.1 christos h->root.u.def.value = h->u.weakdef->root.u.def.value;
2968 1.1 christos return TRUE;
2969 1.1 christos }
2970 1.1 christos
2971 1.1 christos /* If this is a reference to a symbol defined by a dynamic object which
2972 1.1 christos is not a function, we might allocate the symbol in our .dynbss section
2973 1.1 christos and allocate a COPY dynamic relocation.
2974 1.1 christos
2975 1.1 christos But IA-64 code is canonically PIC, so as a rule we can avoid this sort
2976 1.1 christos of hackery. */
2977 1.1 christos
2978 1.1 christos return TRUE;
2979 1.1 christos }
2980 1.1 christos
2981 1.1 christos static bfd_boolean
2982 1.1 christos elfNN_ia64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2983 1.1 christos struct bfd_link_info *info)
2984 1.1 christos {
2985 1.1 christos struct elfNN_ia64_allocate_data data;
2986 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
2987 1.1 christos asection *sec;
2988 1.1 christos bfd *dynobj;
2989 1.1 christos bfd_boolean relplt = FALSE;
2990 1.1 christos
2991 1.1 christos dynobj = elf_hash_table(info)->dynobj;
2992 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
2993 1.1 christos if (ia64_info == NULL)
2994 1.1 christos return FALSE;
2995 1.1.1.4 christos ia64_info->self_dtpmod_offset = (bfd_vma) -1;
2996 1.1 christos BFD_ASSERT(dynobj != NULL);
2997 1.1 christos data.info = info;
2998 1.1 christos
2999 1.1 christos /* Set the contents of the .interp section to the interpreter. */
3000 1.1 christos if (ia64_info->root.dynamic_sections_created
3001 1.1 christos && bfd_link_executable (info) && !info->nointerp)
3002 1.1 christos {
3003 1.1 christos sec = bfd_get_linker_section (dynobj, ".interp");
3004 1.1 christos BFD_ASSERT (sec != NULL);
3005 1.1 christos sec->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
3006 1.1 christos sec->size = strlen (ELF_DYNAMIC_INTERPRETER) + 1;
3007 1.1 christos }
3008 1.1 christos
3009 1.1 christos /* Allocate the GOT entries. */
3010 1.1 christos
3011 1.1 christos if (ia64_info->root.sgot)
3012 1.1 christos {
3013 1.1 christos data.ofs = 0;
3014 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
3015 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
3016 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
3017 1.1 christos ia64_info->root.sgot->size = data.ofs;
3018 1.1 christos }
3019 1.1 christos
3020 1.1 christos /* Allocate the FPTR entries. */
3021 1.1 christos
3022 1.1 christos if (ia64_info->fptr_sec)
3023 1.1 christos {
3024 1.1 christos data.ofs = 0;
3025 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_fptr, &data);
3026 1.1 christos ia64_info->fptr_sec->size = data.ofs;
3027 1.1 christos }
3028 1.1 christos
3029 1.1 christos /* Now that we've seen all of the input files, we can decide which
3030 1.1 christos symbols need plt entries. Allocate the minimal PLT entries first.
3031 1.1 christos We do this even though dynamic_sections_created may be FALSE, because
3032 1.1 christos this has the side-effect of clearing want_plt and want_plt2. */
3033 1.1 christos
3034 1.1 christos data.ofs = 0;
3035 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt_entries, &data);
3036 1.1 christos
3037 1.1 christos ia64_info->minplt_entries = 0;
3038 1.1 christos if (data.ofs)
3039 1.1 christos {
3040 1.1 christos ia64_info->minplt_entries
3041 1.1 christos = (data.ofs - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
3042 1.1 christos }
3043 1.1 christos
3044 1.1 christos /* Align the pointer for the plt2 entries. */
3045 1.1 christos data.ofs = (data.ofs + 31) & (bfd_vma) -32;
3046 1.1 christos
3047 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt2_entries, &data);
3048 1.1 christos if (data.ofs != 0 || ia64_info->root.dynamic_sections_created)
3049 1.1 christos {
3050 1.1 christos /* FIXME: we always reserve the memory for dynamic linker even if
3051 1.1 christos there are no PLT entries since dynamic linker may assume the
3052 1.1 christos reserved memory always exists. */
3053 1.1 christos
3054 1.1 christos BFD_ASSERT (ia64_info->root.dynamic_sections_created);
3055 1.1 christos
3056 1.1 christos ia64_info->root.splt->size = data.ofs;
3057 1.1 christos
3058 1.1 christos /* If we've got a .plt, we need some extra memory for the dynamic
3059 1.1 christos linker. We stuff these in .got.plt. */
3060 1.1 christos sec = bfd_get_linker_section (dynobj, ".got.plt");
3061 1.1 christos sec->size = 8 * PLT_RESERVED_WORDS;
3062 1.1 christos }
3063 1.1 christos
3064 1.1 christos /* Allocate the PLTOFF entries. */
3065 1.1 christos
3066 1.1 christos if (ia64_info->pltoff_sec)
3067 1.1 christos {
3068 1.1 christos data.ofs = 0;
3069 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_pltoff_entries, &data);
3070 1.1 christos ia64_info->pltoff_sec->size = data.ofs;
3071 1.1 christos }
3072 1.1.1.4 christos
3073 1.1 christos if (ia64_info->root.dynamic_sections_created)
3074 1.1 christos {
3075 1.1 christos /* Allocate space for the dynamic relocations that turned out to be
3076 1.1 christos required. */
3077 1.1 christos
3078 1.1 christos if (bfd_link_pic (info) && ia64_info->self_dtpmod_offset != (bfd_vma) -1)
3079 1.1 christos ia64_info->root.srelgot->size += sizeof (ElfNN_External_Rela);
3080 1.1 christos data.only_got = FALSE;
3081 1.1 christos elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries, &data);
3082 1.1 christos }
3083 1.1 christos
3084 1.1 christos /* We have now determined the sizes of the various dynamic sections.
3085 1.1 christos Allocate memory for them. */
3086 1.1 christos for (sec = dynobj->sections; sec != NULL; sec = sec->next)
3087 1.1 christos {
3088 1.1 christos bfd_boolean strip;
3089 1.1 christos
3090 1.1 christos if (!(sec->flags & SEC_LINKER_CREATED))
3091 1.1 christos continue;
3092 1.1 christos
3093 1.1 christos /* If we don't need this section, strip it from the output file.
3094 1.1 christos There were several sections primarily related to dynamic
3095 1.1 christos linking that must be create before the linker maps input
3096 1.1 christos sections to output sections. The linker does that before
3097 1.1 christos bfd_elf_size_dynamic_sections is called, and it is that
3098 1.1 christos function which decides whether anything needs to go into
3099 1.1 christos these sections. */
3100 1.1 christos
3101 1.1 christos strip = (sec->size == 0);
3102 1.1 christos
3103 1.1 christos if (sec == ia64_info->root.sgot)
3104 1.1 christos strip = FALSE;
3105 1.1 christos else if (sec == ia64_info->root.srelgot)
3106 1.1 christos {
3107 1.1 christos if (strip)
3108 1.1 christos ia64_info->root.srelgot = NULL;
3109 1.1 christos else
3110 1.1 christos /* We use the reloc_count field as a counter if we need to
3111 1.1 christos copy relocs into the output file. */
3112 1.1 christos sec->reloc_count = 0;
3113 1.1 christos }
3114 1.1 christos else if (sec == ia64_info->fptr_sec)
3115 1.1 christos {
3116 1.1 christos if (strip)
3117 1.1 christos ia64_info->fptr_sec = NULL;
3118 1.1 christos }
3119 1.1 christos else if (sec == ia64_info->rel_fptr_sec)
3120 1.1 christos {
3121 1.1 christos if (strip)
3122 1.1 christos ia64_info->rel_fptr_sec = NULL;
3123 1.1 christos else
3124 1.1 christos /* We use the reloc_count field as a counter if we need to
3125 1.1 christos copy relocs into the output file. */
3126 1.1 christos sec->reloc_count = 0;
3127 1.1 christos }
3128 1.1 christos else if (sec == ia64_info->root.splt)
3129 1.1 christos {
3130 1.1 christos if (strip)
3131 1.1 christos ia64_info->root.splt = NULL;
3132 1.1 christos }
3133 1.1 christos else if (sec == ia64_info->pltoff_sec)
3134 1.1 christos {
3135 1.1 christos if (strip)
3136 1.1 christos ia64_info->pltoff_sec = NULL;
3137 1.1 christos }
3138 1.1 christos else if (sec == ia64_info->rel_pltoff_sec)
3139 1.1 christos {
3140 1.1 christos if (strip)
3141 1.1 christos ia64_info->rel_pltoff_sec = NULL;
3142 1.1 christos else
3143 1.1 christos {
3144 1.1 christos relplt = TRUE;
3145 1.1 christos /* We use the reloc_count field as a counter if we need to
3146 1.1 christos copy relocs into the output file. */
3147 1.1 christos sec->reloc_count = 0;
3148 1.1 christos }
3149 1.1 christos }
3150 1.1 christos else
3151 1.1 christos {
3152 1.1 christos const char *name;
3153 1.1 christos
3154 1.1 christos /* It's OK to base decisions on the section name, because none
3155 1.1 christos of the dynobj section names depend upon the input files. */
3156 1.1 christos name = bfd_get_section_name (dynobj, sec);
3157 1.1 christos
3158 1.1 christos if (strcmp (name, ".got.plt") == 0)
3159 1.1 christos strip = FALSE;
3160 1.1 christos else if (CONST_STRNEQ (name, ".rel"))
3161 1.1 christos {
3162 1.1 christos if (!strip)
3163 1.1 christos {
3164 1.1 christos /* We use the reloc_count field as a counter if we need to
3165 1.1 christos copy relocs into the output file. */
3166 1.1 christos sec->reloc_count = 0;
3167 1.1 christos }
3168 1.1 christos }
3169 1.1 christos else
3170 1.1 christos continue;
3171 1.1 christos }
3172 1.1 christos
3173 1.1 christos if (strip)
3174 1.1 christos sec->flags |= SEC_EXCLUDE;
3175 1.1 christos else
3176 1.1 christos {
3177 1.1 christos /* Allocate memory for the section contents. */
3178 1.1 christos sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->size);
3179 1.1 christos if (sec->contents == NULL && sec->size != 0)
3180 1.1 christos return FALSE;
3181 1.1 christos }
3182 1.1 christos }
3183 1.1 christos
3184 1.1.1.4 christos if (elf_hash_table (info)->dynamic_sections_created)
3185 1.1 christos {
3186 1.1 christos /* Add some entries to the .dynamic section. We fill in the values
3187 1.1 christos later (in finish_dynamic_sections) but we must add the entries now
3188 1.1 christos so that we get the correct size for the .dynamic section. */
3189 1.1 christos
3190 1.1 christos if (bfd_link_executable (info))
3191 1.1 christos {
3192 1.1 christos /* The DT_DEBUG entry is filled in by the dynamic linker and used
3193 1.1 christos by the debugger. */
3194 1.1 christos #define add_dynamic_entry(TAG, VAL) \
3195 1.1 christos _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3196 1.1 christos
3197 1.1 christos if (!add_dynamic_entry (DT_DEBUG, 0))
3198 1.1 christos return FALSE;
3199 1.1 christos }
3200 1.1 christos
3201 1.1 christos if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE, 0))
3202 1.1 christos return FALSE;
3203 1.1 christos if (!add_dynamic_entry (DT_PLTGOT, 0))
3204 1.1 christos return FALSE;
3205 1.1 christos
3206 1.1 christos if (relplt)
3207 1.1 christos {
3208 1.1 christos if (!add_dynamic_entry (DT_PLTRELSZ, 0)
3209 1.1 christos || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3210 1.1 christos || !add_dynamic_entry (DT_JMPREL, 0))
3211 1.1 christos return FALSE;
3212 1.1 christos }
3213 1.1 christos
3214 1.1 christos if (!add_dynamic_entry (DT_RELA, 0)
3215 1.1 christos || !add_dynamic_entry (DT_RELASZ, 0)
3216 1.1 christos || !add_dynamic_entry (DT_RELAENT, sizeof (ElfNN_External_Rela)))
3217 1.1 christos return FALSE;
3218 1.1 christos
3219 1.1 christos if (ia64_info->reltext)
3220 1.1 christos {
3221 1.1 christos if (!add_dynamic_entry (DT_TEXTREL, 0))
3222 1.1 christos return FALSE;
3223 1.1 christos info->flags |= DF_TEXTREL;
3224 1.1 christos }
3225 1.1 christos }
3226 1.1 christos
3227 1.1 christos /* ??? Perhaps force __gp local. */
3228 1.1 christos
3229 1.1 christos return TRUE;
3230 1.1 christos }
3231 1.1 christos
3232 1.1 christos static void
3233 1.1 christos elfNN_ia64_install_dyn_reloc (bfd *abfd, struct bfd_link_info *info,
3234 1.1 christos asection *sec, asection *srel,
3235 1.1 christos bfd_vma offset, unsigned int type,
3236 1.1 christos long dynindx, bfd_vma addend)
3237 1.1 christos {
3238 1.1 christos Elf_Internal_Rela outrel;
3239 1.1 christos bfd_byte *loc;
3240 1.1 christos
3241 1.1 christos BFD_ASSERT (dynindx != -1);
3242 1.1 christos outrel.r_info = ELFNN_R_INFO (dynindx, type);
3243 1.1 christos outrel.r_addend = addend;
3244 1.1 christos outrel.r_offset = _bfd_elf_section_offset (abfd, info, sec, offset);
3245 1.1 christos if (outrel.r_offset >= (bfd_vma) -2)
3246 1.1 christos {
3247 1.1 christos /* Run for the hills. We shouldn't be outputting a relocation
3248 1.1 christos for this. So do what everyone else does and output a no-op. */
3249 1.1 christos outrel.r_info = ELFNN_R_INFO (0, R_IA64_NONE);
3250 1.1 christos outrel.r_addend = 0;
3251 1.1 christos outrel.r_offset = 0;
3252 1.1 christos }
3253 1.1 christos else
3254 1.1 christos outrel.r_offset += sec->output_section->vma + sec->output_offset;
3255 1.1 christos
3256 1.1 christos loc = srel->contents;
3257 1.1 christos loc += srel->reloc_count++ * sizeof (ElfNN_External_Rela);
3258 1.1 christos bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
3259 1.1 christos BFD_ASSERT (sizeof (ElfNN_External_Rela) * srel->reloc_count <= srel->size);
3260 1.1 christos }
3261 1.1 christos
3262 1.1 christos /* Store an entry for target address TARGET_ADDR in the linkage table
3263 1.1 christos and return the gp-relative address of the linkage table entry. */
3264 1.1 christos
3265 1.1 christos static bfd_vma
3266 1.1 christos set_got_entry (bfd *abfd, struct bfd_link_info *info,
3267 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i,
3268 1.1 christos long dynindx, bfd_vma addend, bfd_vma value,
3269 1.1 christos unsigned int dyn_r_type)
3270 1.1 christos {
3271 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3272 1.1 christos asection *got_sec;
3273 1.1 christos bfd_boolean done;
3274 1.1 christos bfd_vma got_offset;
3275 1.1 christos
3276 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3277 1.1 christos if (ia64_info == NULL)
3278 1.1 christos return 0;
3279 1.1 christos
3280 1.1 christos got_sec = ia64_info->root.sgot;
3281 1.1 christos
3282 1.1 christos switch (dyn_r_type)
3283 1.1 christos {
3284 1.1 christos case R_IA64_TPREL64LSB:
3285 1.1 christos done = dyn_i->tprel_done;
3286 1.1 christos dyn_i->tprel_done = TRUE;
3287 1.1 christos got_offset = dyn_i->tprel_offset;
3288 1.1 christos break;
3289 1.1 christos case R_IA64_DTPMOD64LSB:
3290 1.1 christos if (dyn_i->dtpmod_offset != ia64_info->self_dtpmod_offset)
3291 1.1 christos {
3292 1.1 christos done = dyn_i->dtpmod_done;
3293 1.1 christos dyn_i->dtpmod_done = TRUE;
3294 1.1 christos }
3295 1.1 christos else
3296 1.1 christos {
3297 1.1 christos done = ia64_info->self_dtpmod_done;
3298 1.1 christos ia64_info->self_dtpmod_done = TRUE;
3299 1.1 christos dynindx = 0;
3300 1.1 christos }
3301 1.1 christos got_offset = dyn_i->dtpmod_offset;
3302 1.1 christos break;
3303 1.1 christos case R_IA64_DTPREL32LSB:
3304 1.1 christos case R_IA64_DTPREL64LSB:
3305 1.1 christos done = dyn_i->dtprel_done;
3306 1.1 christos dyn_i->dtprel_done = TRUE;
3307 1.1 christos got_offset = dyn_i->dtprel_offset;
3308 1.1 christos break;
3309 1.1 christos default:
3310 1.1 christos done = dyn_i->got_done;
3311 1.1 christos dyn_i->got_done = TRUE;
3312 1.1 christos got_offset = dyn_i->got_offset;
3313 1.1 christos break;
3314 1.1 christos }
3315 1.1 christos
3316 1.1 christos BFD_ASSERT ((got_offset & 7) == 0);
3317 1.1 christos
3318 1.1.1.4 christos if (! done)
3319 1.1 christos {
3320 1.1 christos /* Store the target address in the linkage table entry. */
3321 1.1 christos bfd_put_64 (abfd, value, got_sec->contents + got_offset);
3322 1.1 christos
3323 1.1 christos /* Install a dynamic relocation if needed. */
3324 1.1 christos if (((bfd_link_pic (info)
3325 1.1 christos && (!dyn_i->h
3326 1.1 christos || ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
3327 1.1 christos || dyn_i->h->root.type != bfd_link_hash_undefweak)
3328 1.1 christos && dyn_r_type != R_IA64_DTPREL32LSB
3329 1.1.1.4 christos && dyn_r_type != R_IA64_DTPREL64LSB)
3330 1.1 christos || elfNN_ia64_dynamic_symbol_p (dyn_i->h, info, dyn_r_type)
3331 1.1 christos || (dynindx != -1
3332 1.1 christos && (dyn_r_type == R_IA64_FPTR32LSB
3333 1.1 christos || dyn_r_type == R_IA64_FPTR64LSB)))
3334 1.1 christos && (!dyn_i->want_ltoff_fptr
3335 1.1 christos || !bfd_link_pie (info)
3336 1.1 christos || !dyn_i->h
3337 1.1 christos || dyn_i->h->root.type != bfd_link_hash_undefweak))
3338 1.1 christos {
3339 1.1 christos if (dynindx == -1
3340 1.1 christos && dyn_r_type != R_IA64_TPREL64LSB
3341 1.1 christos && dyn_r_type != R_IA64_DTPMOD64LSB
3342 1.1 christos && dyn_r_type != R_IA64_DTPREL32LSB
3343 1.1 christos && dyn_r_type != R_IA64_DTPREL64LSB)
3344 1.1 christos {
3345 1.1 christos dyn_r_type = R_IA64_RELNNLSB;
3346 1.1 christos dynindx = 0;
3347 1.1 christos addend = value;
3348 1.1 christos }
3349 1.1 christos
3350 1.1 christos if (bfd_big_endian (abfd))
3351 1.1 christos {
3352 1.1 christos switch (dyn_r_type)
3353 1.1 christos {
3354 1.1 christos case R_IA64_REL32LSB:
3355 1.1 christos dyn_r_type = R_IA64_REL32MSB;
3356 1.1 christos break;
3357 1.1 christos case R_IA64_DIR32LSB:
3358 1.1 christos dyn_r_type = R_IA64_DIR32MSB;
3359 1.1 christos break;
3360 1.1 christos case R_IA64_FPTR32LSB:
3361 1.1 christos dyn_r_type = R_IA64_FPTR32MSB;
3362 1.1 christos break;
3363 1.1 christos case R_IA64_DTPREL32LSB:
3364 1.1 christos dyn_r_type = R_IA64_DTPREL32MSB;
3365 1.1 christos break;
3366 1.1 christos case R_IA64_REL64LSB:
3367 1.1 christos dyn_r_type = R_IA64_REL64MSB;
3368 1.1 christos break;
3369 1.1 christos case R_IA64_DIR64LSB:
3370 1.1 christos dyn_r_type = R_IA64_DIR64MSB;
3371 1.1 christos break;
3372 1.1 christos case R_IA64_FPTR64LSB:
3373 1.1 christos dyn_r_type = R_IA64_FPTR64MSB;
3374 1.1 christos break;
3375 1.1 christos case R_IA64_TPREL64LSB:
3376 1.1 christos dyn_r_type = R_IA64_TPREL64MSB;
3377 1.1 christos break;
3378 1.1 christos case R_IA64_DTPMOD64LSB:
3379 1.1 christos dyn_r_type = R_IA64_DTPMOD64MSB;
3380 1.1 christos break;
3381 1.1 christos case R_IA64_DTPREL64LSB:
3382 1.1 christos dyn_r_type = R_IA64_DTPREL64MSB;
3383 1.1 christos break;
3384 1.1 christos default:
3385 1.1 christos BFD_ASSERT (FALSE);
3386 1.1 christos break;
3387 1.1 christos }
3388 1.1 christos }
3389 1.1 christos
3390 1.1 christos elfNN_ia64_install_dyn_reloc (abfd, NULL, got_sec,
3391 1.1 christos ia64_info->root.srelgot,
3392 1.1 christos got_offset, dyn_r_type,
3393 1.1 christos dynindx, addend);
3394 1.1 christos }
3395 1.1 christos }
3396 1.1 christos
3397 1.1 christos /* Return the address of the linkage table entry. */
3398 1.1 christos value = (got_sec->output_section->vma
3399 1.1 christos + got_sec->output_offset
3400 1.1 christos + got_offset);
3401 1.1 christos
3402 1.1 christos return value;
3403 1.1 christos }
3404 1.1 christos
3405 1.1 christos /* Fill in a function descriptor consisting of the function's code
3406 1.1 christos address and its global pointer. Return the descriptor's address. */
3407 1.1 christos
3408 1.1 christos static bfd_vma
3409 1.1 christos set_fptr_entry (bfd *abfd, struct bfd_link_info *info,
3410 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i,
3411 1.1 christos bfd_vma value)
3412 1.1 christos {
3413 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3414 1.1 christos asection *fptr_sec;
3415 1.1 christos
3416 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3417 1.1 christos if (ia64_info == NULL)
3418 1.1 christos return 0;
3419 1.1 christos
3420 1.1 christos fptr_sec = ia64_info->fptr_sec;
3421 1.1 christos
3422 1.1 christos if (!dyn_i->fptr_done)
3423 1.1 christos {
3424 1.1 christos dyn_i->fptr_done = 1;
3425 1.1 christos
3426 1.1 christos /* Fill in the function descriptor. */
3427 1.1 christos bfd_put_64 (abfd, value, fptr_sec->contents + dyn_i->fptr_offset);
3428 1.1 christos bfd_put_64 (abfd, _bfd_get_gp_value (abfd),
3429 1.1 christos fptr_sec->contents + dyn_i->fptr_offset + 8);
3430 1.1 christos if (ia64_info->rel_fptr_sec)
3431 1.1 christos {
3432 1.1 christos Elf_Internal_Rela outrel;
3433 1.1 christos bfd_byte *loc;
3434 1.1 christos
3435 1.1 christos if (bfd_little_endian (abfd))
3436 1.1 christos outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTLSB);
3437 1.1 christos else
3438 1.1 christos outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTMSB);
3439 1.1 christos outrel.r_addend = value;
3440 1.1 christos outrel.r_offset = (fptr_sec->output_section->vma
3441 1.1 christos + fptr_sec->output_offset
3442 1.1 christos + dyn_i->fptr_offset);
3443 1.1 christos loc = ia64_info->rel_fptr_sec->contents;
3444 1.1 christos loc += ia64_info->rel_fptr_sec->reloc_count++
3445 1.1 christos * sizeof (ElfNN_External_Rela);
3446 1.1 christos bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
3447 1.1 christos }
3448 1.1 christos }
3449 1.1 christos
3450 1.1 christos /* Return the descriptor's address. */
3451 1.1 christos value = (fptr_sec->output_section->vma
3452 1.1 christos + fptr_sec->output_offset
3453 1.1 christos + dyn_i->fptr_offset);
3454 1.1 christos
3455 1.1 christos return value;
3456 1.1 christos }
3457 1.1 christos
3458 1.1 christos /* Fill in a PLTOFF entry consisting of the function's code address
3459 1.1 christos and its global pointer. Return the descriptor's address. */
3460 1.1 christos
3461 1.1 christos static bfd_vma
3462 1.1 christos set_pltoff_entry (bfd *abfd, struct bfd_link_info *info,
3463 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i,
3464 1.1 christos bfd_vma value, bfd_boolean is_plt)
3465 1.1 christos {
3466 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3467 1.1 christos asection *pltoff_sec;
3468 1.1 christos
3469 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3470 1.1 christos if (ia64_info == NULL)
3471 1.1 christos return 0;
3472 1.1 christos
3473 1.1 christos pltoff_sec = ia64_info->pltoff_sec;
3474 1.1 christos
3475 1.1 christos /* Don't do anything if this symbol uses a real PLT entry. In
3476 1.1 christos that case, we'll fill this in during finish_dynamic_symbol. */
3477 1.1 christos if ((! dyn_i->want_plt || is_plt)
3478 1.1 christos && !dyn_i->pltoff_done)
3479 1.1 christos {
3480 1.1 christos bfd_vma gp = _bfd_get_gp_value (abfd);
3481 1.1 christos
3482 1.1.1.4 christos /* Fill in the function descriptor. */
3483 1.1 christos bfd_put_64 (abfd, value, pltoff_sec->contents + dyn_i->pltoff_offset);
3484 1.1 christos bfd_put_64 (abfd, gp, pltoff_sec->contents + dyn_i->pltoff_offset + 8);
3485 1.1 christos
3486 1.1 christos /* Install dynamic relocations if needed. */
3487 1.1 christos if (!is_plt
3488 1.1 christos && bfd_link_pic (info)
3489 1.1 christos && (!dyn_i->h
3490 1.1 christos || ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
3491 1.1 christos || dyn_i->h->root.type != bfd_link_hash_undefweak))
3492 1.1 christos {
3493 1.1 christos unsigned int dyn_r_type;
3494 1.1 christos
3495 1.1 christos if (bfd_big_endian (abfd))
3496 1.1 christos dyn_r_type = R_IA64_RELNNMSB;
3497 1.1 christos else
3498 1.1 christos dyn_r_type = R_IA64_RELNNLSB;
3499 1.1 christos
3500 1.1 christos elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
3501 1.1 christos ia64_info->rel_pltoff_sec,
3502 1.1 christos dyn_i->pltoff_offset,
3503 1.1 christos dyn_r_type, 0, value);
3504 1.1 christos elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
3505 1.1 christos ia64_info->rel_pltoff_sec,
3506 1.1 christos dyn_i->pltoff_offset + ARCH_SIZE / 8,
3507 1.1 christos dyn_r_type, 0, gp);
3508 1.1 christos }
3509 1.1 christos
3510 1.1 christos dyn_i->pltoff_done = 1;
3511 1.1 christos }
3512 1.1 christos
3513 1.1 christos /* Return the descriptor's address. */
3514 1.1 christos value = (pltoff_sec->output_section->vma
3515 1.1 christos + pltoff_sec->output_offset
3516 1.1 christos + dyn_i->pltoff_offset);
3517 1.1 christos
3518 1.1 christos return value;
3519 1.1 christos }
3520 1.1 christos
3521 1.1 christos /* Return the base VMA address which should be subtracted from real addresses
3522 1.1 christos when resolving @tprel() relocation.
3523 1.1 christos Main program TLS (whose template starts at PT_TLS p_vaddr)
3524 1.1 christos is assigned offset round(2 * size of pointer, PT_TLS p_align). */
3525 1.1 christos
3526 1.1 christos static bfd_vma
3527 1.1 christos elfNN_ia64_tprel_base (struct bfd_link_info *info)
3528 1.1 christos {
3529 1.1 christos asection *tls_sec = elf_hash_table (info)->tls_sec;
3530 1.1 christos return tls_sec->vma - align_power ((bfd_vma) ARCH_SIZE / 4,
3531 1.1 christos tls_sec->alignment_power);
3532 1.1 christos }
3533 1.1 christos
3534 1.1 christos /* Return the base VMA address which should be subtracted from real addresses
3535 1.1 christos when resolving @dtprel() relocation.
3536 1.1 christos This is PT_TLS segment p_vaddr. */
3537 1.1 christos
3538 1.1 christos static bfd_vma
3539 1.1 christos elfNN_ia64_dtprel_base (struct bfd_link_info *info)
3540 1.1 christos {
3541 1.1 christos return elf_hash_table (info)->tls_sec->vma;
3542 1.1 christos }
3543 1.1 christos
3544 1.1 christos /* Called through qsort to sort the .IA_64.unwind section during a
3545 1.1 christos non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
3546 1.1 christos to the output bfd so we can do proper endianness frobbing. */
3547 1.1 christos
3548 1.1 christos static bfd *elfNN_ia64_unwind_entry_compare_bfd;
3549 1.1 christos
3550 1.1 christos static int
3551 1.1 christos elfNN_ia64_unwind_entry_compare (const void * a, const void * b)
3552 1.1 christos {
3553 1.1 christos bfd_vma av, bv;
3554 1.1 christos
3555 1.1 christos av = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, a);
3556 1.1 christos bv = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, b);
3557 1.1 christos
3558 1.1 christos return (av < bv ? -1 : av > bv ? 1 : 0);
3559 1.1 christos }
3560 1.1 christos
3561 1.1 christos /* Make sure we've got ourselves a nice fat __gp value. */
3562 1.1 christos static bfd_boolean
3563 1.1 christos elfNN_ia64_choose_gp (bfd *abfd, struct bfd_link_info *info, bfd_boolean final)
3564 1.1 christos {
3565 1.1 christos bfd_vma min_vma = (bfd_vma) -1, max_vma = 0;
3566 1.1 christos bfd_vma min_short_vma = min_vma, max_short_vma = 0;
3567 1.1 christos struct elf_link_hash_entry *gp;
3568 1.1 christos bfd_vma gp_val;
3569 1.1 christos asection *os;
3570 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3571 1.1 christos
3572 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3573 1.1 christos if (ia64_info == NULL)
3574 1.1 christos return FALSE;
3575 1.1 christos
3576 1.1 christos /* Find the min and max vma of all sections marked short. Also collect
3577 1.1 christos min and max vma of any type, for use in selecting a nice gp. */
3578 1.1 christos for (os = abfd->sections; os ; os = os->next)
3579 1.1 christos {
3580 1.1 christos bfd_vma lo, hi;
3581 1.1 christos
3582 1.1 christos if ((os->flags & SEC_ALLOC) == 0)
3583 1.1 christos continue;
3584 1.1 christos
3585 1.1 christos lo = os->vma;
3586 1.1 christos /* When this function is called from elfNN_ia64_final_link
3587 1.1 christos the correct value to use is os->size. When called from
3588 1.1 christos elfNN_ia64_relax_section we are in the middle of section
3589 1.1 christos sizing; some sections will already have os->size set, others
3590 1.1 christos will have os->size zero and os->rawsize the previous size. */
3591 1.1 christos hi = os->vma + (!final && os->rawsize ? os->rawsize : os->size);
3592 1.1 christos if (hi < lo)
3593 1.1 christos hi = (bfd_vma) -1;
3594 1.1 christos
3595 1.1 christos if (min_vma > lo)
3596 1.1 christos min_vma = lo;
3597 1.1 christos if (max_vma < hi)
3598 1.1 christos max_vma = hi;
3599 1.1 christos if (os->flags & SEC_SMALL_DATA)
3600 1.1 christos {
3601 1.1 christos if (min_short_vma > lo)
3602 1.1 christos min_short_vma = lo;
3603 1.1 christos if (max_short_vma < hi)
3604 1.1 christos max_short_vma = hi;
3605 1.1 christos }
3606 1.1 christos }
3607 1.1 christos
3608 1.1 christos if (ia64_info->min_short_sec)
3609 1.1 christos {
3610 1.1 christos if (min_short_vma
3611 1.1 christos > (ia64_info->min_short_sec->vma
3612 1.1 christos + ia64_info->min_short_offset))
3613 1.1 christos min_short_vma = (ia64_info->min_short_sec->vma
3614 1.1 christos + ia64_info->min_short_offset);
3615 1.1 christos if (max_short_vma
3616 1.1 christos < (ia64_info->max_short_sec->vma
3617 1.1 christos + ia64_info->max_short_offset))
3618 1.1 christos max_short_vma = (ia64_info->max_short_sec->vma
3619 1.1 christos + ia64_info->max_short_offset);
3620 1.1 christos }
3621 1.1 christos
3622 1.1 christos /* See if the user wants to force a value. */
3623 1.1 christos gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
3624 1.1 christos FALSE, FALSE);
3625 1.1 christos
3626 1.1 christos if (gp
3627 1.1 christos && (gp->root.type == bfd_link_hash_defined
3628 1.1 christos || gp->root.type == bfd_link_hash_defweak))
3629 1.1 christos {
3630 1.1 christos asection *gp_sec = gp->root.u.def.section;
3631 1.1 christos gp_val = (gp->root.u.def.value
3632 1.1 christos + gp_sec->output_section->vma
3633 1.1 christos + gp_sec->output_offset);
3634 1.1 christos }
3635 1.1 christos else
3636 1.1 christos {
3637 1.1 christos /* Pick a sensible value. */
3638 1.1 christos
3639 1.1 christos if (ia64_info->min_short_sec)
3640 1.1 christos {
3641 1.1 christos bfd_vma short_range = max_short_vma - min_short_vma;
3642 1.1 christos
3643 1.1 christos /* If min_short_sec is set, pick one in the middle bewteen
3644 1.1 christos min_short_vma and max_short_vma. */
3645 1.1 christos if (short_range >= 0x400000)
3646 1.1 christos goto overflow;
3647 1.1 christos gp_val = min_short_vma + short_range / 2;
3648 1.1 christos }
3649 1.1 christos else
3650 1.1 christos {
3651 1.1 christos asection *got_sec = ia64_info->root.sgot;
3652 1.1 christos
3653 1.1 christos /* Start with just the address of the .got. */
3654 1.1 christos if (got_sec)
3655 1.1 christos gp_val = got_sec->output_section->vma;
3656 1.1 christos else if (max_short_vma != 0)
3657 1.1 christos gp_val = min_short_vma;
3658 1.1 christos else if (max_vma - min_vma < 0x200000)
3659 1.1 christos gp_val = min_vma;
3660 1.1 christos else
3661 1.1 christos gp_val = max_vma - 0x200000 + 8;
3662 1.1 christos }
3663 1.1 christos
3664 1.1 christos /* If it is possible to address the entire image, but we
3665 1.1 christos don't with the choice above, adjust. */
3666 1.1 christos if (max_vma - min_vma < 0x400000
3667 1.1 christos && (max_vma - gp_val >= 0x200000
3668 1.1 christos || gp_val - min_vma > 0x200000))
3669 1.1 christos gp_val = min_vma + 0x200000;
3670 1.1 christos else if (max_short_vma != 0)
3671 1.1 christos {
3672 1.1 christos /* If we don't cover all the short data, adjust. */
3673 1.1 christos if (max_short_vma - gp_val >= 0x200000)
3674 1.1 christos gp_val = min_short_vma + 0x200000;
3675 1.1 christos
3676 1.1 christos /* If we're addressing stuff past the end, adjust back. */
3677 1.1 christos if (gp_val > max_vma)
3678 1.1 christos gp_val = max_vma - 0x200000 + 8;
3679 1.1 christos }
3680 1.1 christos }
3681 1.1 christos
3682 1.1 christos /* Validate whether all SHF_IA_64_SHORT sections are within
3683 1.1 christos range of the chosen GP. */
3684 1.1 christos
3685 1.1 christos if (max_short_vma != 0)
3686 1.1 christos {
3687 1.1 christos if (max_short_vma - min_short_vma >= 0x400000)
3688 1.1 christos {
3689 1.1 christos overflow:
3690 1.1 christos (*_bfd_error_handler)
3691 1.1 christos (_("%s: short data segment overflowed (0x%lx >= 0x400000)"),
3692 1.1 christos bfd_get_filename (abfd),
3693 1.1 christos (unsigned long) (max_short_vma - min_short_vma));
3694 1.1 christos return FALSE;
3695 1.1 christos }
3696 1.1 christos else if ((gp_val > min_short_vma
3697 1.1 christos && gp_val - min_short_vma > 0x200000)
3698 1.1 christos || (gp_val < max_short_vma
3699 1.1 christos && max_short_vma - gp_val >= 0x200000))
3700 1.1 christos {
3701 1.1 christos (*_bfd_error_handler)
3702 1.1 christos (_("%s: __gp does not cover short data segment"),
3703 1.1 christos bfd_get_filename (abfd));
3704 1.1 christos return FALSE;
3705 1.1 christos }
3706 1.1 christos }
3707 1.1 christos
3708 1.1 christos _bfd_set_gp_value (abfd, gp_val);
3709 1.1 christos
3710 1.1 christos return TRUE;
3711 1.1 christos }
3712 1.1 christos
3713 1.1 christos static bfd_boolean
3714 1.1 christos elfNN_ia64_final_link (bfd *abfd, struct bfd_link_info *info)
3715 1.1 christos {
3716 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3717 1.1 christos asection *unwind_output_sec;
3718 1.1.1.4 christos
3719 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3720 1.1 christos if (ia64_info == NULL)
3721 1.1 christos return FALSE;
3722 1.1 christos
3723 1.1 christos /* Make sure we've got ourselves a nice fat __gp value. */
3724 1.1 christos if (!bfd_link_relocatable (info))
3725 1.1 christos {
3726 1.1 christos bfd_vma gp_val;
3727 1.1 christos struct elf_link_hash_entry *gp;
3728 1.1 christos
3729 1.1 christos /* We assume after gp is set, section size will only decrease. We
3730 1.1 christos need to adjust gp for it. */
3731 1.1 christos _bfd_set_gp_value (abfd, 0);
3732 1.1 christos if (! elfNN_ia64_choose_gp (abfd, info, TRUE))
3733 1.1 christos return FALSE;
3734 1.1 christos gp_val = _bfd_get_gp_value (abfd);
3735 1.1 christos
3736 1.1 christos gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
3737 1.1 christos FALSE, FALSE);
3738 1.1 christos if (gp)
3739 1.1 christos {
3740 1.1 christos gp->root.type = bfd_link_hash_defined;
3741 1.1 christos gp->root.u.def.value = gp_val;
3742 1.1 christos gp->root.u.def.section = bfd_abs_section_ptr;
3743 1.1 christos }
3744 1.1.1.4 christos }
3745 1.1 christos
3746 1.1 christos /* If we're producing a final executable, we need to sort the contents
3747 1.1 christos of the .IA_64.unwind section. Force this section to be relocated
3748 1.1 christos into memory rather than written immediately to the output file. */
3749 1.1 christos unwind_output_sec = NULL;
3750 1.1 christos if (!bfd_link_relocatable (info))
3751 1.1 christos {
3752 1.1 christos asection *s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_unwind);
3753 1.1 christos if (s)
3754 1.1 christos {
3755 1.1 christos unwind_output_sec = s->output_section;
3756 1.1 christos unwind_output_sec->contents
3757 1.1 christos = bfd_malloc (unwind_output_sec->size);
3758 1.1 christos if (unwind_output_sec->contents == NULL)
3759 1.1 christos return FALSE;
3760 1.1 christos }
3761 1.1 christos }
3762 1.1 christos
3763 1.1 christos /* Invoke the regular ELF backend linker to do all the work. */
3764 1.1 christos if (!bfd_elf_final_link (abfd, info))
3765 1.1 christos return FALSE;
3766 1.1 christos
3767 1.1 christos if (unwind_output_sec)
3768 1.1 christos {
3769 1.1 christos elfNN_ia64_unwind_entry_compare_bfd = abfd;
3770 1.1 christos qsort (unwind_output_sec->contents,
3771 1.1 christos (size_t) (unwind_output_sec->size / 24),
3772 1.1 christos 24,
3773 1.1 christos elfNN_ia64_unwind_entry_compare);
3774 1.1 christos
3775 1.1 christos if (! bfd_set_section_contents (abfd, unwind_output_sec,
3776 1.1 christos unwind_output_sec->contents, (bfd_vma) 0,
3777 1.1 christos unwind_output_sec->size))
3778 1.1 christos return FALSE;
3779 1.1 christos }
3780 1.1 christos
3781 1.1 christos return TRUE;
3782 1.1 christos }
3783 1.1 christos
3784 1.1 christos static bfd_boolean
3785 1.1 christos elfNN_ia64_relocate_section (bfd *output_bfd,
3786 1.1 christos struct bfd_link_info *info,
3787 1.1 christos bfd *input_bfd,
3788 1.1 christos asection *input_section,
3789 1.1 christos bfd_byte *contents,
3790 1.1 christos Elf_Internal_Rela *relocs,
3791 1.1 christos Elf_Internal_Sym *local_syms,
3792 1.1 christos asection **local_sections)
3793 1.1 christos {
3794 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
3795 1.1 christos Elf_Internal_Shdr *symtab_hdr;
3796 1.1 christos Elf_Internal_Rela *rel;
3797 1.1 christos Elf_Internal_Rela *relend;
3798 1.1 christos asection *srel;
3799 1.1 christos bfd_boolean ret_val = TRUE; /* for non-fatal errors */
3800 1.1 christos bfd_vma gp_val;
3801 1.1 christos
3802 1.1.1.4 christos symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3803 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
3804 1.1 christos if (ia64_info == NULL)
3805 1.1 christos return FALSE;
3806 1.1 christos
3807 1.1 christos /* Infect various flags from the input section to the output section. */
3808 1.1 christos if (bfd_link_relocatable (info))
3809 1.1 christos {
3810 1.1 christos bfd_vma flags;
3811 1.1 christos
3812 1.1 christos flags = elf_section_data(input_section)->this_hdr.sh_flags;
3813 1.1 christos flags &= SHF_IA_64_NORECOV;
3814 1.1 christos
3815 1.1 christos elf_section_data(input_section->output_section)
3816 1.1 christos ->this_hdr.sh_flags |= flags;
3817 1.1 christos }
3818 1.1 christos
3819 1.1 christos gp_val = _bfd_get_gp_value (output_bfd);
3820 1.1 christos srel = get_reloc_section (input_bfd, ia64_info, input_section, FALSE);
3821 1.1 christos
3822 1.1 christos rel = relocs;
3823 1.1 christos relend = relocs + input_section->reloc_count;
3824 1.1 christos for (; rel < relend; ++rel)
3825 1.1 christos {
3826 1.1 christos struct elf_link_hash_entry *h;
3827 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
3828 1.1 christos bfd_reloc_status_type r;
3829 1.1 christos reloc_howto_type *howto;
3830 1.1 christos unsigned long r_symndx;
3831 1.1 christos Elf_Internal_Sym *sym;
3832 1.1 christos unsigned int r_type;
3833 1.1 christos bfd_vma value;
3834 1.1 christos asection *sym_sec;
3835 1.1 christos bfd_byte *hit_addr;
3836 1.1 christos bfd_boolean dynamic_symbol_p;
3837 1.1 christos bfd_boolean undef_weak_ref;
3838 1.1 christos
3839 1.1 christos r_type = ELFNN_R_TYPE (rel->r_info);
3840 1.1 christos if (r_type > R_IA64_MAX_RELOC_CODE)
3841 1.1 christos {
3842 1.1 christos (*_bfd_error_handler)
3843 1.1 christos (_("%B: unknown relocation type %d"),
3844 1.1 christos input_bfd, (int) r_type);
3845 1.1 christos bfd_set_error (bfd_error_bad_value);
3846 1.1 christos ret_val = FALSE;
3847 1.1 christos continue;
3848 1.1 christos }
3849 1.1 christos
3850 1.1 christos howto = ia64_elf_lookup_howto (r_type);
3851 1.1 christos r_symndx = ELFNN_R_SYM (rel->r_info);
3852 1.1 christos h = NULL;
3853 1.1 christos sym = NULL;
3854 1.1 christos sym_sec = NULL;
3855 1.1 christos undef_weak_ref = FALSE;
3856 1.1 christos
3857 1.1 christos if (r_symndx < symtab_hdr->sh_info)
3858 1.1 christos {
3859 1.1.1.4 christos /* Reloc against local symbol. */
3860 1.1 christos asection *msec;
3861 1.1 christos sym = local_syms + r_symndx;
3862 1.1 christos sym_sec = local_sections[r_symndx];
3863 1.1 christos msec = sym_sec;
3864 1.1 christos value = _bfd_elf_rela_local_sym (output_bfd, sym, &msec, rel);
3865 1.1 christos if (!bfd_link_relocatable (info)
3866 1.1 christos && (sym_sec->flags & SEC_MERGE) != 0
3867 1.1 christos && ELF_ST_TYPE (sym->st_info) == STT_SECTION
3868 1.1 christos && sym_sec->sec_info_type == SEC_INFO_TYPE_MERGE)
3869 1.1 christos {
3870 1.1 christos struct elfNN_ia64_local_hash_entry *loc_h;
3871 1.1 christos
3872 1.1 christos loc_h = get_local_sym_hash (ia64_info, input_bfd, rel, FALSE);
3873 1.1 christos if (loc_h && ! loc_h->sec_merge_done)
3874 1.1 christos {
3875 1.1 christos struct elfNN_ia64_dyn_sym_info *dynent;
3876 1.1 christos unsigned int count;
3877 1.1 christos
3878 1.1 christos for (count = loc_h->count, dynent = loc_h->info;
3879 1.1 christos count != 0;
3880 1.1 christos count--, dynent++)
3881 1.1 christos {
3882 1.1 christos msec = sym_sec;
3883 1.1 christos dynent->addend =
3884 1.1 christos _bfd_merged_section_offset (output_bfd, &msec,
3885 1.1 christos elf_section_data (msec)->
3886 1.1 christos sec_info,
3887 1.1 christos sym->st_value
3888 1.1 christos + dynent->addend);
3889 1.1 christos dynent->addend -= sym->st_value;
3890 1.1 christos dynent->addend += msec->output_section->vma
3891 1.1 christos + msec->output_offset
3892 1.1 christos - sym_sec->output_section->vma
3893 1.1 christos - sym_sec->output_offset;
3894 1.1 christos }
3895 1.1 christos
3896 1.1 christos /* We may have introduced duplicated entries. We need
3897 1.1 christos to remove them properly. */
3898 1.1 christos count = sort_dyn_sym_info (loc_h->info, loc_h->count);
3899 1.1 christos if (count != loc_h->count)
3900 1.1 christos {
3901 1.1 christos loc_h->count = count;
3902 1.1 christos loc_h->sorted_count = count;
3903 1.1 christos }
3904 1.1 christos
3905 1.1 christos loc_h->sec_merge_done = 1;
3906 1.1.1.2 christos }
3907 1.1 christos }
3908 1.1 christos }
3909 1.1 christos else
3910 1.1 christos {
3911 1.1 christos bfd_boolean unresolved_reloc;
3912 1.1.1.2 christos bfd_boolean warned, ignored;
3913 1.1 christos struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
3914 1.1 christos
3915 1.1 christos RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3916 1.1.1.4 christos r_symndx, symtab_hdr, sym_hashes,
3917 1.1 christos h, sym_sec, value,
3918 1.1 christos unresolved_reloc, warned, ignored);
3919 1.1 christos
3920 1.1 christos if (h->root.type == bfd_link_hash_undefweak)
3921 1.1 christos undef_weak_ref = TRUE;
3922 1.1 christos else if (warned || (ignored && bfd_link_executable (info)))
3923 1.1 christos continue;
3924 1.1.1.4 christos }
3925 1.1 christos
3926 1.1 christos if (sym_sec != NULL && discarded_section (sym_sec))
3927 1.1 christos RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3928 1.1 christos rel, 1, relend, howto, 0, contents);
3929 1.1 christos
3930 1.1 christos if (bfd_link_relocatable (info))
3931 1.1 christos continue;
3932 1.1 christos
3933 1.1 christos hit_addr = contents + rel->r_offset;
3934 1.1 christos value += rel->r_addend;
3935 1.1 christos dynamic_symbol_p = elfNN_ia64_dynamic_symbol_p (h, info, r_type);
3936 1.1 christos
3937 1.1 christos switch (r_type)
3938 1.1 christos {
3939 1.1 christos case R_IA64_NONE:
3940 1.1 christos case R_IA64_LDXMOV:
3941 1.1 christos continue;
3942 1.1 christos
3943 1.1 christos case R_IA64_IMM14:
3944 1.1 christos case R_IA64_IMM22:
3945 1.1.1.4 christos case R_IA64_IMM64:
3946 1.1 christos case R_IA64_DIR32MSB:
3947 1.1 christos case R_IA64_DIR32LSB:
3948 1.1 christos case R_IA64_DIR64MSB:
3949 1.1 christos case R_IA64_DIR64LSB:
3950 1.1 christos /* Install a dynamic relocation for this reloc. */
3951 1.1 christos if ((dynamic_symbol_p || bfd_link_pic (info))
3952 1.1 christos && r_symndx != STN_UNDEF
3953 1.1 christos && (input_section->flags & SEC_ALLOC) != 0)
3954 1.1 christos {
3955 1.1 christos unsigned int dyn_r_type;
3956 1.1 christos long dynindx;
3957 1.1 christos bfd_vma addend;
3958 1.1 christos
3959 1.1 christos BFD_ASSERT (srel != NULL);
3960 1.1 christos
3961 1.1 christos switch (r_type)
3962 1.1 christos {
3963 1.1 christos case R_IA64_IMM14:
3964 1.1 christos case R_IA64_IMM22:
3965 1.1 christos case R_IA64_IMM64:
3966 1.1 christos /* ??? People shouldn't be doing non-pic code in
3967 1.1 christos shared libraries nor dynamic executables. */
3968 1.1 christos (*_bfd_error_handler)
3969 1.1 christos (_("%B: non-pic code with imm relocation against dynamic symbol `%s'"),
3970 1.1 christos input_bfd,
3971 1.1 christos h ? h->root.root.string
3972 1.1 christos : bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3973 1.1 christos sym_sec));
3974 1.1 christos ret_val = FALSE;
3975 1.1 christos continue;
3976 1.1 christos
3977 1.1 christos default:
3978 1.1 christos break;
3979 1.1 christos }
3980 1.1 christos
3981 1.1 christos /* If we don't need dynamic symbol lookup, find a
3982 1.1 christos matching RELATIVE relocation. */
3983 1.1 christos dyn_r_type = r_type;
3984 1.1 christos if (dynamic_symbol_p)
3985 1.1 christos {
3986 1.1 christos dynindx = h->dynindx;
3987 1.1 christos addend = rel->r_addend;
3988 1.1 christos value = 0;
3989 1.1 christos }
3990 1.1 christos else
3991 1.1 christos {
3992 1.1 christos switch (r_type)
3993 1.1 christos {
3994 1.1 christos case R_IA64_DIR32MSB:
3995 1.1 christos dyn_r_type = R_IA64_REL32MSB;
3996 1.1 christos break;
3997 1.1 christos case R_IA64_DIR32LSB:
3998 1.1 christos dyn_r_type = R_IA64_REL32LSB;
3999 1.1 christos break;
4000 1.1 christos case R_IA64_DIR64MSB:
4001 1.1 christos dyn_r_type = R_IA64_REL64MSB;
4002 1.1 christos break;
4003 1.1 christos case R_IA64_DIR64LSB:
4004 1.1 christos dyn_r_type = R_IA64_REL64LSB;
4005 1.1 christos break;
4006 1.1 christos
4007 1.1 christos default:
4008 1.1 christos break;
4009 1.1 christos }
4010 1.1 christos dynindx = 0;
4011 1.1 christos addend = value;
4012 1.1 christos }
4013 1.1 christos
4014 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4015 1.1 christos srel, rel->r_offset, dyn_r_type,
4016 1.1 christos dynindx, addend);
4017 1.1 christos }
4018 1.1 christos /* Fall through. */
4019 1.1 christos
4020 1.1 christos case R_IA64_LTV32MSB:
4021 1.1 christos case R_IA64_LTV32LSB:
4022 1.1 christos case R_IA64_LTV64MSB:
4023 1.1 christos case R_IA64_LTV64LSB:
4024 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4025 1.1 christos break;
4026 1.1 christos
4027 1.1 christos case R_IA64_GPREL22:
4028 1.1 christos case R_IA64_GPREL64I:
4029 1.1 christos case R_IA64_GPREL32MSB:
4030 1.1 christos case R_IA64_GPREL32LSB:
4031 1.1 christos case R_IA64_GPREL64MSB:
4032 1.1 christos case R_IA64_GPREL64LSB:
4033 1.1 christos if (dynamic_symbol_p)
4034 1.1 christos {
4035 1.1 christos (*_bfd_error_handler)
4036 1.1 christos (_("%B: @gprel relocation against dynamic symbol %s"),
4037 1.1 christos input_bfd,
4038 1.1 christos h ? h->root.root.string
4039 1.1 christos : bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4040 1.1 christos sym_sec));
4041 1.1 christos ret_val = FALSE;
4042 1.1 christos continue;
4043 1.1 christos }
4044 1.1 christos value -= gp_val;
4045 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4046 1.1 christos break;
4047 1.1 christos
4048 1.1 christos case R_IA64_LTOFF22:
4049 1.1 christos case R_IA64_LTOFF22X:
4050 1.1 christos case R_IA64_LTOFF64I:
4051 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4052 1.1 christos value = set_got_entry (input_bfd, info, dyn_i, (h ? h->dynindx : -1),
4053 1.1 christos rel->r_addend, value, R_IA64_DIRNNLSB);
4054 1.1 christos value -= gp_val;
4055 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4056 1.1 christos break;
4057 1.1 christos
4058 1.1 christos case R_IA64_PLTOFF22:
4059 1.1 christos case R_IA64_PLTOFF64I:
4060 1.1 christos case R_IA64_PLTOFF64MSB:
4061 1.1 christos case R_IA64_PLTOFF64LSB:
4062 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4063 1.1 christos value = set_pltoff_entry (output_bfd, info, dyn_i, value, FALSE);
4064 1.1 christos value -= gp_val;
4065 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4066 1.1 christos break;
4067 1.1 christos
4068 1.1 christos case R_IA64_FPTR64I:
4069 1.1 christos case R_IA64_FPTR32MSB:
4070 1.1 christos case R_IA64_FPTR32LSB:
4071 1.1 christos case R_IA64_FPTR64MSB:
4072 1.1 christos case R_IA64_FPTR64LSB:
4073 1.1.1.4 christos dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4074 1.1 christos if (dyn_i->want_fptr)
4075 1.1 christos {
4076 1.1 christos if (!undef_weak_ref)
4077 1.1 christos value = set_fptr_entry (output_bfd, info, dyn_i, value);
4078 1.1 christos }
4079 1.1 christos if (!dyn_i->want_fptr || bfd_link_pie (info))
4080 1.1 christos {
4081 1.1 christos long dynindx;
4082 1.1 christos unsigned int dyn_r_type = r_type;
4083 1.1 christos bfd_vma addend = rel->r_addend;
4084 1.1 christos
4085 1.1 christos /* Otherwise, we expect the dynamic linker to create
4086 1.1 christos the entry. */
4087 1.1 christos
4088 1.1 christos if (dyn_i->want_fptr)
4089 1.1 christos {
4090 1.1 christos if (r_type == R_IA64_FPTR64I)
4091 1.1 christos {
4092 1.1 christos /* We can't represent this without a dynamic symbol.
4093 1.1 christos Adjust the relocation to be against an output
4094 1.1 christos section symbol, which are always present in the
4095 1.1 christos dynamic symbol table. */
4096 1.1 christos /* ??? People shouldn't be doing non-pic code in
4097 1.1 christos shared libraries. Hork. */
4098 1.1 christos (*_bfd_error_handler)
4099 1.1 christos (_("%B: linking non-pic code in a position independent executable"),
4100 1.1 christos input_bfd);
4101 1.1 christos ret_val = FALSE;
4102 1.1 christos continue;
4103 1.1 christos }
4104 1.1 christos dynindx = 0;
4105 1.1 christos addend = value;
4106 1.1 christos dyn_r_type = r_type + R_IA64_RELNNLSB - R_IA64_FPTRNNLSB;
4107 1.1 christos }
4108 1.1 christos else if (h)
4109 1.1 christos {
4110 1.1 christos if (h->dynindx != -1)
4111 1.1 christos dynindx = h->dynindx;
4112 1.1 christos else
4113 1.1 christos dynindx = (_bfd_elf_link_lookup_local_dynindx
4114 1.1 christos (info, h->root.u.def.section->owner,
4115 1.1 christos global_sym_index (h)));
4116 1.1 christos value = 0;
4117 1.1 christos }
4118 1.1 christos else
4119 1.1 christos {
4120 1.1 christos dynindx = (_bfd_elf_link_lookup_local_dynindx
4121 1.1 christos (info, input_bfd, (long) r_symndx));
4122 1.1 christos value = 0;
4123 1.1 christos }
4124 1.1 christos
4125 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4126 1.1 christos srel, rel->r_offset, dyn_r_type,
4127 1.1 christos dynindx, addend);
4128 1.1 christos }
4129 1.1 christos
4130 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4131 1.1 christos break;
4132 1.1 christos
4133 1.1 christos case R_IA64_LTOFF_FPTR22:
4134 1.1 christos case R_IA64_LTOFF_FPTR64I:
4135 1.1 christos case R_IA64_LTOFF_FPTR32MSB:
4136 1.1 christos case R_IA64_LTOFF_FPTR32LSB:
4137 1.1 christos case R_IA64_LTOFF_FPTR64MSB:
4138 1.1 christos case R_IA64_LTOFF_FPTR64LSB:
4139 1.1 christos {
4140 1.1 christos long dynindx;
4141 1.1 christos
4142 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4143 1.1 christos if (dyn_i->want_fptr)
4144 1.1 christos {
4145 1.1 christos BFD_ASSERT (h == NULL || h->dynindx == -1);
4146 1.1 christos if (!undef_weak_ref)
4147 1.1 christos value = set_fptr_entry (output_bfd, info, dyn_i, value);
4148 1.1 christos dynindx = -1;
4149 1.1 christos }
4150 1.1 christos else
4151 1.1 christos {
4152 1.1 christos /* Otherwise, we expect the dynamic linker to create
4153 1.1 christos the entry. */
4154 1.1 christos if (h)
4155 1.1 christos {
4156 1.1 christos if (h->dynindx != -1)
4157 1.1 christos dynindx = h->dynindx;
4158 1.1 christos else
4159 1.1 christos dynindx = (_bfd_elf_link_lookup_local_dynindx
4160 1.1 christos (info, h->root.u.def.section->owner,
4161 1.1 christos global_sym_index (h)));
4162 1.1 christos }
4163 1.1 christos else
4164 1.1 christos dynindx = (_bfd_elf_link_lookup_local_dynindx
4165 1.1 christos (info, input_bfd, (long) r_symndx));
4166 1.1 christos value = 0;
4167 1.1 christos }
4168 1.1 christos
4169 1.1 christos value = set_got_entry (output_bfd, info, dyn_i, dynindx,
4170 1.1 christos rel->r_addend, value, R_IA64_FPTRNNLSB);
4171 1.1 christos value -= gp_val;
4172 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4173 1.1 christos }
4174 1.1 christos break;
4175 1.1 christos
4176 1.1 christos case R_IA64_PCREL32MSB:
4177 1.1 christos case R_IA64_PCREL32LSB:
4178 1.1 christos case R_IA64_PCREL64MSB:
4179 1.1 christos case R_IA64_PCREL64LSB:
4180 1.1 christos /* Install a dynamic relocation for this reloc. */
4181 1.1 christos if (dynamic_symbol_p && r_symndx != STN_UNDEF)
4182 1.1 christos {
4183 1.1 christos BFD_ASSERT (srel != NULL);
4184 1.1 christos
4185 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4186 1.1 christos srel, rel->r_offset, r_type,
4187 1.1 christos h->dynindx, rel->r_addend);
4188 1.1 christos }
4189 1.1 christos goto finish_pcrel;
4190 1.1 christos
4191 1.1 christos case R_IA64_PCREL21B:
4192 1.1 christos case R_IA64_PCREL60B:
4193 1.1 christos /* We should have created a PLT entry for any dynamic symbol. */
4194 1.1 christos dyn_i = NULL;
4195 1.1 christos if (h)
4196 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE);
4197 1.1 christos
4198 1.1 christos if (dyn_i && dyn_i->want_plt2)
4199 1.1 christos {
4200 1.1 christos /* Should have caught this earlier. */
4201 1.1 christos BFD_ASSERT (rel->r_addend == 0);
4202 1.1 christos
4203 1.1 christos value = (ia64_info->root.splt->output_section->vma
4204 1.1 christos + ia64_info->root.splt->output_offset
4205 1.1 christos + dyn_i->plt2_offset);
4206 1.1 christos }
4207 1.1 christos else
4208 1.1 christos {
4209 1.1 christos /* Since there's no PLT entry, Validate that this is
4210 1.1 christos locally defined. */
4211 1.1 christos BFD_ASSERT (undef_weak_ref || sym_sec->output_section != NULL);
4212 1.1 christos
4213 1.1 christos /* If the symbol is undef_weak, we shouldn't be trying
4214 1.1 christos to call it. There's every chance that we'd wind up
4215 1.1 christos with an out-of-range fixup here. Don't bother setting
4216 1.1 christos any value at all. */
4217 1.1 christos if (undef_weak_ref)
4218 1.1 christos continue;
4219 1.1 christos }
4220 1.1 christos goto finish_pcrel;
4221 1.1 christos
4222 1.1 christos case R_IA64_PCREL21BI:
4223 1.1 christos case R_IA64_PCREL21F:
4224 1.1 christos case R_IA64_PCREL21M:
4225 1.1 christos case R_IA64_PCREL22:
4226 1.1 christos case R_IA64_PCREL64I:
4227 1.1 christos /* The PCREL21BI reloc is specifically not intended for use with
4228 1.1 christos dynamic relocs. PCREL21F and PCREL21M are used for speculation
4229 1.1 christos fixup code, and thus probably ought not be dynamic. The
4230 1.1 christos PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4231 1.1 christos if (dynamic_symbol_p)
4232 1.1 christos {
4233 1.1 christos const char *msg;
4234 1.1 christos
4235 1.1 christos if (r_type == R_IA64_PCREL21BI)
4236 1.1 christos msg = _("%B: @internal branch to dynamic symbol %s");
4237 1.1 christos else if (r_type == R_IA64_PCREL21F || r_type == R_IA64_PCREL21M)
4238 1.1 christos msg = _("%B: speculation fixup to dynamic symbol %s");
4239 1.1 christos else
4240 1.1 christos msg = _("%B: @pcrel relocation against dynamic symbol %s");
4241 1.1 christos (*_bfd_error_handler) (msg, input_bfd,
4242 1.1 christos h ? h->root.root.string
4243 1.1 christos : bfd_elf_sym_name (input_bfd,
4244 1.1 christos symtab_hdr,
4245 1.1 christos sym,
4246 1.1 christos sym_sec));
4247 1.1 christos ret_val = FALSE;
4248 1.1 christos continue;
4249 1.1 christos }
4250 1.1 christos goto finish_pcrel;
4251 1.1 christos
4252 1.1 christos finish_pcrel:
4253 1.1 christos /* Make pc-relative. */
4254 1.1 christos value -= (input_section->output_section->vma
4255 1.1 christos + input_section->output_offset
4256 1.1 christos + rel->r_offset) & ~ (bfd_vma) 0x3;
4257 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4258 1.1 christos break;
4259 1.1 christos
4260 1.1 christos case R_IA64_SEGREL32MSB:
4261 1.1 christos case R_IA64_SEGREL32LSB:
4262 1.1 christos case R_IA64_SEGREL64MSB:
4263 1.1 christos case R_IA64_SEGREL64LSB:
4264 1.1 christos {
4265 1.1 christos /* Find the segment that contains the output_section. */
4266 1.1 christos Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section
4267 1.1 christos (output_bfd, input_section->output_section);
4268 1.1 christos
4269 1.1 christos if (p == NULL)
4270 1.1 christos {
4271 1.1 christos r = bfd_reloc_notsupported;
4272 1.1 christos }
4273 1.1 christos else
4274 1.1 christos {
4275 1.1 christos /* The VMA of the segment is the vaddr of the associated
4276 1.1 christos program header. */
4277 1.1 christos if (value > p->p_vaddr)
4278 1.1 christos value -= p->p_vaddr;
4279 1.1 christos else
4280 1.1 christos value = 0;
4281 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4282 1.1 christos }
4283 1.1 christos break;
4284 1.1 christos }
4285 1.1 christos
4286 1.1 christos case R_IA64_SECREL32MSB:
4287 1.1 christos case R_IA64_SECREL32LSB:
4288 1.1 christos case R_IA64_SECREL64MSB:
4289 1.1 christos case R_IA64_SECREL64LSB:
4290 1.1 christos /* Make output-section relative to section where the symbol
4291 1.1 christos is defined. PR 475 */
4292 1.1 christos if (sym_sec)
4293 1.1 christos value -= sym_sec->output_section->vma;
4294 1.1.1.4 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_IPLTMSB:
4298 1.1 christos case R_IA64_IPLTLSB:
4299 1.1 christos /* Install a dynamic relocation for this reloc. */
4300 1.1 christos if ((dynamic_symbol_p || bfd_link_pic (info))
4301 1.1 christos && (input_section->flags & SEC_ALLOC) != 0)
4302 1.1 christos {
4303 1.1 christos BFD_ASSERT (srel != NULL);
4304 1.1 christos
4305 1.1 christos /* If we don't need dynamic symbol lookup, install two
4306 1.1 christos RELATIVE relocations. */
4307 1.1 christos if (!dynamic_symbol_p)
4308 1.1 christos {
4309 1.1 christos unsigned int dyn_r_type;
4310 1.1 christos
4311 1.1 christos if (r_type == R_IA64_IPLTMSB)
4312 1.1 christos dyn_r_type = R_IA64_REL64MSB;
4313 1.1 christos else
4314 1.1 christos dyn_r_type = R_IA64_REL64LSB;
4315 1.1 christos
4316 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info,
4317 1.1 christos input_section,
4318 1.1 christos srel, rel->r_offset,
4319 1.1 christos dyn_r_type, 0, value);
4320 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info,
4321 1.1 christos input_section,
4322 1.1 christos srel, rel->r_offset + 8,
4323 1.1 christos dyn_r_type, 0, gp_val);
4324 1.1 christos }
4325 1.1 christos else
4326 1.1 christos elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4327 1.1 christos srel, rel->r_offset, r_type,
4328 1.1 christos h->dynindx, rel->r_addend);
4329 1.1 christos }
4330 1.1 christos
4331 1.1 christos if (r_type == R_IA64_IPLTMSB)
4332 1.1 christos r_type = R_IA64_DIR64MSB;
4333 1.1 christos else
4334 1.1 christos r_type = R_IA64_DIR64LSB;
4335 1.1 christos ia64_elf_install_value (hit_addr, value, r_type);
4336 1.1 christos r = ia64_elf_install_value (hit_addr + 8, gp_val, r_type);
4337 1.1 christos break;
4338 1.1 christos
4339 1.1 christos case R_IA64_TPREL14:
4340 1.1 christos case R_IA64_TPREL22:
4341 1.1 christos case R_IA64_TPREL64I:
4342 1.1 christos if (elf_hash_table (info)->tls_sec == NULL)
4343 1.1 christos goto missing_tls_sec;
4344 1.1 christos value -= elfNN_ia64_tprel_base (info);
4345 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4346 1.1 christos break;
4347 1.1 christos
4348 1.1 christos case R_IA64_DTPREL14:
4349 1.1 christos case R_IA64_DTPREL22:
4350 1.1 christos case R_IA64_DTPREL64I:
4351 1.1 christos case R_IA64_DTPREL32LSB:
4352 1.1 christos case R_IA64_DTPREL32MSB:
4353 1.1 christos case R_IA64_DTPREL64LSB:
4354 1.1 christos case R_IA64_DTPREL64MSB:
4355 1.1 christos if (elf_hash_table (info)->tls_sec == NULL)
4356 1.1 christos goto missing_tls_sec;
4357 1.1 christos value -= elfNN_ia64_dtprel_base (info);
4358 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4359 1.1 christos break;
4360 1.1 christos
4361 1.1 christos case R_IA64_LTOFF_TPREL22:
4362 1.1 christos case R_IA64_LTOFF_DTPMOD22:
4363 1.1 christos case R_IA64_LTOFF_DTPREL22:
4364 1.1 christos {
4365 1.1 christos int got_r_type;
4366 1.1 christos long dynindx = h ? h->dynindx : -1;
4367 1.1 christos bfd_vma r_addend = rel->r_addend;
4368 1.1 christos
4369 1.1 christos switch (r_type)
4370 1.1 christos {
4371 1.1.1.4 christos default:
4372 1.1 christos case R_IA64_LTOFF_TPREL22:
4373 1.1 christos if (!dynamic_symbol_p)
4374 1.1 christos {
4375 1.1 christos if (elf_hash_table (info)->tls_sec == NULL)
4376 1.1 christos goto missing_tls_sec;
4377 1.1 christos if (!bfd_link_pic (info))
4378 1.1 christos value -= elfNN_ia64_tprel_base (info);
4379 1.1 christos else
4380 1.1 christos {
4381 1.1 christos r_addend += value - elfNN_ia64_dtprel_base (info);
4382 1.1.1.4 christos dynindx = 0;
4383 1.1 christos }
4384 1.1 christos }
4385 1.1 christos got_r_type = R_IA64_TPREL64LSB;
4386 1.1 christos break;
4387 1.1 christos case R_IA64_LTOFF_DTPMOD22:
4388 1.1 christos if (!dynamic_symbol_p && !bfd_link_pic (info))
4389 1.1 christos value = 1;
4390 1.1 christos got_r_type = R_IA64_DTPMOD64LSB;
4391 1.1 christos break;
4392 1.1 christos case R_IA64_LTOFF_DTPREL22:
4393 1.1 christos if (!dynamic_symbol_p)
4394 1.1 christos {
4395 1.1 christos if (elf_hash_table (info)->tls_sec == NULL)
4396 1.1 christos goto missing_tls_sec;
4397 1.1 christos value -= elfNN_ia64_dtprel_base (info);
4398 1.1 christos }
4399 1.1 christos got_r_type = R_IA64_DTPRELNNLSB;
4400 1.1 christos break;
4401 1.1 christos }
4402 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4403 1.1 christos value = set_got_entry (input_bfd, info, dyn_i, dynindx, r_addend,
4404 1.1 christos value, got_r_type);
4405 1.1 christos value -= gp_val;
4406 1.1 christos r = ia64_elf_install_value (hit_addr, value, r_type);
4407 1.1 christos }
4408 1.1 christos break;
4409 1.1 christos
4410 1.1 christos default:
4411 1.1 christos r = bfd_reloc_notsupported;
4412 1.1 christos break;
4413 1.1 christos }
4414 1.1 christos
4415 1.1 christos switch (r)
4416 1.1 christos {
4417 1.1 christos case bfd_reloc_ok:
4418 1.1 christos break;
4419 1.1 christos
4420 1.1 christos case bfd_reloc_undefined:
4421 1.1 christos /* This can happen for global table relative relocs if
4422 1.1 christos __gp is undefined. This is a panic situation so we
4423 1.1 christos don't try to continue. */
4424 1.1 christos (*info->callbacks->undefined_symbol)
4425 1.1 christos (info, "__gp", input_bfd, input_section, rel->r_offset, 1);
4426 1.1 christos return FALSE;
4427 1.1 christos
4428 1.1 christos case bfd_reloc_notsupported:
4429 1.1 christos {
4430 1.1 christos const char *name;
4431 1.1.1.4 christos
4432 1.1.1.4 christos if (h)
4433 1.1.1.4 christos name = h->root.root.string;
4434 1.1 christos else
4435 1.1 christos name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4436 1.1 christos sym_sec);
4437 1.1 christos (*info->callbacks->warning) (info, _("unsupported reloc"),
4438 1.1 christos name, input_bfd,
4439 1.1 christos input_section, rel->r_offset);
4440 1.1 christos ret_val = FALSE;
4441 1.1 christos }
4442 1.1 christos break;
4443 1.1 christos
4444 1.1 christos case bfd_reloc_dangerous:
4445 1.1 christos case bfd_reloc_outofrange:
4446 1.1 christos case bfd_reloc_overflow:
4447 1.1 christos default:
4448 1.1 christos missing_tls_sec:
4449 1.1 christos {
4450 1.1 christos const char *name;
4451 1.1 christos
4452 1.1 christos if (h)
4453 1.1 christos name = h->root.root.string;
4454 1.1 christos else
4455 1.1 christos name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4456 1.1 christos sym_sec);
4457 1.1 christos
4458 1.1 christos switch (r_type)
4459 1.1 christos {
4460 1.1 christos case R_IA64_TPREL14:
4461 1.1 christos case R_IA64_TPREL22:
4462 1.1 christos case R_IA64_TPREL64I:
4463 1.1 christos case R_IA64_DTPREL14:
4464 1.1 christos case R_IA64_DTPREL22:
4465 1.1 christos case R_IA64_DTPREL64I:
4466 1.1 christos case R_IA64_DTPREL32LSB:
4467 1.1 christos case R_IA64_DTPREL32MSB:
4468 1.1 christos case R_IA64_DTPREL64LSB:
4469 1.1 christos case R_IA64_DTPREL64MSB:
4470 1.1 christos case R_IA64_LTOFF_TPREL22:
4471 1.1 christos case R_IA64_LTOFF_DTPMOD22:
4472 1.1 christos case R_IA64_LTOFF_DTPREL22:
4473 1.1 christos (*_bfd_error_handler)
4474 1.1 christos (_("%B: missing TLS section for relocation %s against `%s' at 0x%lx in section `%A'."),
4475 1.1 christos input_bfd, input_section, howto->name, name,
4476 1.1 christos rel->r_offset);
4477 1.1 christos break;
4478 1.1 christos
4479 1.1 christos case R_IA64_PCREL21B:
4480 1.1 christos case R_IA64_PCREL21BI:
4481 1.1 christos case R_IA64_PCREL21M:
4482 1.1 christos case R_IA64_PCREL21F:
4483 1.1 christos if (is_elf_hash_table (info->hash))
4484 1.1 christos {
4485 1.1 christos /* Relaxtion is always performed for ELF output.
4486 1.1 christos Overflow failures for those relocations mean
4487 1.1 christos that the section is too big to relax. */
4488 1.1 christos (*_bfd_error_handler)
4489 1.1.1.4 christos (_("%B: Can't relax br (%s) to `%s' at 0x%lx in section `%A' with size 0x%lx (> 0x1000000)."),
4490 1.1.1.4 christos input_bfd, input_section, howto->name, name,
4491 1.1.1.4 christos rel->r_offset, input_section->size);
4492 1.1.1.4 christos break;
4493 1.1.1.4 christos }
4494 1.1.1.4 christos default:
4495 1.1.1.4 christos (*info->callbacks->reloc_overflow) (info,
4496 1.1.1.4 christos &h->root,
4497 1.1 christos name,
4498 1.1 christos howto->name,
4499 1.1 christos (bfd_vma) 0,
4500 1.1 christos input_bfd,
4501 1.1 christos input_section,
4502 1.1 christos rel->r_offset);
4503 1.1 christos break;
4504 1.1 christos }
4505 1.1 christos
4506 1.1 christos ret_val = FALSE;
4507 1.1 christos }
4508 1.1 christos break;
4509 1.1 christos }
4510 1.1 christos }
4511 1.1 christos
4512 1.1 christos return ret_val;
4513 1.1 christos }
4514 1.1 christos
4515 1.1 christos static bfd_boolean
4516 1.1 christos elfNN_ia64_finish_dynamic_symbol (bfd *output_bfd,
4517 1.1 christos struct bfd_link_info *info,
4518 1.1 christos struct elf_link_hash_entry *h,
4519 1.1 christos Elf_Internal_Sym *sym)
4520 1.1 christos {
4521 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
4522 1.1 christos struct elfNN_ia64_dyn_sym_info *dyn_i;
4523 1.1 christos
4524 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
4525 1.1 christos if (ia64_info == NULL)
4526 1.1 christos return FALSE;
4527 1.1 christos
4528 1.1 christos dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE);
4529 1.1 christos
4530 1.1 christos /* Fill in the PLT data, if required. */
4531 1.1 christos if (dyn_i && dyn_i->want_plt)
4532 1.1 christos {
4533 1.1 christos Elf_Internal_Rela outrel;
4534 1.1 christos bfd_byte *loc;
4535 1.1 christos asection *plt_sec;
4536 1.1 christos bfd_vma plt_addr, pltoff_addr, gp_val, plt_index;
4537 1.1 christos
4538 1.1 christos gp_val = _bfd_get_gp_value (output_bfd);
4539 1.1 christos
4540 1.1 christos /* Initialize the minimal PLT entry. */
4541 1.1 christos
4542 1.1 christos plt_index = (dyn_i->plt_offset - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
4543 1.1 christos plt_sec = ia64_info->root.splt;
4544 1.1 christos loc = plt_sec->contents + dyn_i->plt_offset;
4545 1.1 christos
4546 1.1 christos memcpy (loc, plt_min_entry, PLT_MIN_ENTRY_SIZE);
4547 1.1 christos ia64_elf_install_value (loc, plt_index, R_IA64_IMM22);
4548 1.1 christos ia64_elf_install_value (loc+2, -dyn_i->plt_offset, R_IA64_PCREL21B);
4549 1.1 christos
4550 1.1 christos plt_addr = (plt_sec->output_section->vma
4551 1.1 christos + plt_sec->output_offset
4552 1.1 christos + dyn_i->plt_offset);
4553 1.1 christos pltoff_addr = set_pltoff_entry (output_bfd, info, dyn_i, plt_addr, TRUE);
4554 1.1 christos
4555 1.1 christos /* Initialize the FULL PLT entry, if needed. */
4556 1.1 christos if (dyn_i->want_plt2)
4557 1.1 christos {
4558 1.1 christos loc = plt_sec->contents + dyn_i->plt2_offset;
4559 1.1 christos
4560 1.1 christos memcpy (loc, plt_full_entry, PLT_FULL_ENTRY_SIZE);
4561 1.1 christos ia64_elf_install_value (loc, pltoff_addr - gp_val, R_IA64_IMM22);
4562 1.1 christos
4563 1.1 christos /* Mark the symbol as undefined, rather than as defined in the
4564 1.1 christos plt section. Leave the value alone. */
4565 1.1 christos /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4566 1.1 christos first place. But perhaps elflink.c did some for us. */
4567 1.1 christos if (!h->def_regular)
4568 1.1 christos sym->st_shndx = SHN_UNDEF;
4569 1.1 christos }
4570 1.1 christos
4571 1.1 christos /* Create the dynamic relocation. */
4572 1.1 christos outrel.r_offset = pltoff_addr;
4573 1.1 christos if (bfd_little_endian (output_bfd))
4574 1.1 christos outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTLSB);
4575 1.1 christos else
4576 1.1 christos outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTMSB);
4577 1.1 christos outrel.r_addend = 0;
4578 1.1 christos
4579 1.1 christos /* This is fun. In the .IA_64.pltoff section, we've got entries
4580 1.1 christos that correspond both to real PLT entries, and those that
4581 1.1 christos happened to resolve to local symbols but need to be created
4582 1.1 christos to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4583 1.1 christos relocations for the real PLT should come at the end of the
4584 1.1 christos section, so that they can be indexed by plt entry at runtime.
4585 1.1 christos
4586 1.1 christos We emitted all of the relocations for the non-PLT @pltoff
4587 1.1 christos entries during relocate_section. So we can consider the
4588 1.1 christos existing sec->reloc_count to be the base of the array of
4589 1.1 christos PLT relocations. */
4590 1.1 christos
4591 1.1 christos loc = ia64_info->rel_pltoff_sec->contents;
4592 1.1 christos loc += ((ia64_info->rel_pltoff_sec->reloc_count + plt_index)
4593 1.1 christos * sizeof (ElfNN_External_Rela));
4594 1.1 christos bfd_elfNN_swap_reloca_out (output_bfd, &outrel, loc);
4595 1.1 christos }
4596 1.1 christos
4597 1.1 christos /* Mark some specially defined symbols as absolute. */
4598 1.1 christos if (h == ia64_info->root.hdynamic
4599 1.1 christos || h == ia64_info->root.hgot
4600 1.1 christos || h == ia64_info->root.hplt)
4601 1.1 christos sym->st_shndx = SHN_ABS;
4602 1.1 christos
4603 1.1 christos return TRUE;
4604 1.1 christos }
4605 1.1 christos
4606 1.1 christos static bfd_boolean
4607 1.1 christos elfNN_ia64_finish_dynamic_sections (bfd *abfd,
4608 1.1 christos struct bfd_link_info *info)
4609 1.1 christos {
4610 1.1 christos struct elfNN_ia64_link_hash_table *ia64_info;
4611 1.1 christos bfd *dynobj;
4612 1.1 christos
4613 1.1 christos ia64_info = elfNN_ia64_hash_table (info);
4614 1.1 christos if (ia64_info == NULL)
4615 1.1 christos return FALSE;
4616 1.1 christos
4617 1.1 christos dynobj = ia64_info->root.dynobj;
4618 1.1 christos
4619 1.1 christos if (elf_hash_table (info)->dynamic_sections_created)
4620 1.1 christos {
4621 1.1 christos ElfNN_External_Dyn *dyncon, *dynconend;
4622 1.1 christos asection *sdyn, *sgotplt;
4623 1.1 christos bfd_vma gp_val;
4624 1.1 christos
4625 1.1 christos sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4626 1.1 christos sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
4627 1.1 christos BFD_ASSERT (sdyn != NULL);
4628 1.1 christos dyncon = (ElfNN_External_Dyn *) sdyn->contents;
4629 1.1 christos dynconend = (ElfNN_External_Dyn *) (sdyn->contents + sdyn->size);
4630 1.1 christos
4631 1.1 christos gp_val = _bfd_get_gp_value (abfd);
4632 1.1 christos
4633 1.1 christos for (; dyncon < dynconend; dyncon++)
4634 1.1 christos {
4635 1.1 christos Elf_Internal_Dyn dyn;
4636 1.1 christos
4637 1.1 christos bfd_elfNN_swap_dyn_in (dynobj, dyncon, &dyn);
4638 1.1 christos
4639 1.1 christos switch (dyn.d_tag)
4640 1.1 christos {
4641 1.1 christos case DT_PLTGOT:
4642 1.1 christos dyn.d_un.d_ptr = gp_val;
4643 1.1 christos break;
4644 1.1 christos
4645 1.1 christos case DT_PLTRELSZ:
4646 1.1 christos dyn.d_un.d_val = (ia64_info->minplt_entries
4647 1.1 christos * sizeof (ElfNN_External_Rela));
4648 1.1 christos break;
4649 1.1 christos
4650 1.1 christos case DT_JMPREL:
4651 1.1 christos /* See the comment above in finish_dynamic_symbol. */
4652 1.1 christos dyn.d_un.d_ptr = (ia64_info->rel_pltoff_sec->output_section->vma
4653 1.1 christos + ia64_info->rel_pltoff_sec->output_offset
4654 1.1 christos + (ia64_info->rel_pltoff_sec->reloc_count
4655 1.1 christos * sizeof (ElfNN_External_Rela)));
4656 1.1 christos break;
4657 1.1 christos
4658 1.1 christos case DT_IA_64_PLT_RESERVE:
4659 1.1 christos dyn.d_un.d_ptr = (sgotplt->output_section->vma
4660 1.1 christos + sgotplt->output_offset);
4661 1.1 christos break;
4662 1.1 christos
4663 1.1 christos case DT_RELASZ:
4664 1.1 christos /* Do not have RELASZ include JMPREL. This makes things
4665 1.1 christos easier on ld.so. This is not what the rest of BFD set up. */
4666 1.1 christos dyn.d_un.d_val -= (ia64_info->minplt_entries
4667 1.1 christos * sizeof (ElfNN_External_Rela));
4668 1.1 christos break;
4669 1.1 christos }
4670 1.1 christos
4671 1.1 christos bfd_elfNN_swap_dyn_out (abfd, &dyn, dyncon);
4672 1.1 christos }
4673 1.1 christos
4674 1.1 christos /* Initialize the PLT0 entry. */
4675 1.1 christos if (ia64_info->root.splt)
4676 1.1 christos {
4677 1.1 christos bfd_byte *loc = ia64_info->root.splt->contents;
4678 1.1 christos bfd_vma pltres;
4679 1.1 christos
4680 1.1 christos memcpy (loc, plt_header, PLT_HEADER_SIZE);
4681 1.1 christos
4682 1.1 christos pltres = (sgotplt->output_section->vma
4683 1.1 christos + sgotplt->output_offset
4684 1.1 christos - gp_val);
4685 1.1 christos
4686 1.1 christos ia64_elf_install_value (loc+1, pltres, R_IA64_GPREL22);
4687 1.1 christos }
4688 1.1 christos }
4689 1.1 christos
4690 1.1 christos return TRUE;
4691 1.1 christos }
4692 1.1 christos
4693 1.1 christos /* ELF file flag handling: */
4695 1.1 christos
4696 1.1 christos /* Function to keep IA-64 specific file flags. */
4697 1.1 christos static bfd_boolean
4698 1.1 christos elfNN_ia64_set_private_flags (bfd *abfd, flagword flags)
4699 1.1 christos {
4700 1.1 christos BFD_ASSERT (!elf_flags_init (abfd)
4701 1.1 christos || elf_elfheader (abfd)->e_flags == flags);
4702 1.1 christos
4703 1.1 christos elf_elfheader (abfd)->e_flags = flags;
4704 1.1 christos elf_flags_init (abfd) = TRUE;
4705 1.1 christos return TRUE;
4706 1.1 christos }
4707 1.1 christos
4708 1.1 christos /* Merge backend specific data from an object file to the output
4709 1.1 christos object file when linking. */
4710 1.1 christos static bfd_boolean
4711 1.1 christos elfNN_ia64_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
4712 1.1 christos {
4713 1.1 christos flagword out_flags;
4714 1.1 christos flagword in_flags;
4715 1.1 christos bfd_boolean ok = TRUE;
4716 1.1 christos
4717 1.1 christos /* Don't even pretend to support mixed-format linking. */
4718 1.1 christos if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
4719 1.1 christos || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
4720 1.1 christos return FALSE;
4721 1.1 christos
4722 1.1 christos in_flags = elf_elfheader (ibfd)->e_flags;
4723 1.1 christos out_flags = elf_elfheader (obfd)->e_flags;
4724 1.1 christos
4725 1.1 christos if (! elf_flags_init (obfd))
4726 1.1 christos {
4727 1.1 christos elf_flags_init (obfd) = TRUE;
4728 1.1 christos elf_elfheader (obfd)->e_flags = in_flags;
4729 1.1 christos
4730 1.1 christos if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
4731 1.1 christos && bfd_get_arch_info (obfd)->the_default)
4732 1.1 christos {
4733 1.1 christos return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
4734 1.1 christos bfd_get_mach (ibfd));
4735 1.1 christos }
4736 1.1 christos
4737 1.1 christos return TRUE;
4738 1.1 christos }
4739 1.1 christos
4740 1.1 christos /* Check flag compatibility. */
4741 1.1 christos if (in_flags == out_flags)
4742 1.1 christos return TRUE;
4743 1.1 christos
4744 1.1 christos /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4745 1.1 christos if (!(in_flags & EF_IA_64_REDUCEDFP) && (out_flags & EF_IA_64_REDUCEDFP))
4746 1.1 christos elf_elfheader (obfd)->e_flags &= ~EF_IA_64_REDUCEDFP;
4747 1.1 christos
4748 1.1 christos if ((in_flags & EF_IA_64_TRAPNIL) != (out_flags & EF_IA_64_TRAPNIL))
4749 1.1 christos {
4750 1.1 christos (*_bfd_error_handler)
4751 1.1 christos (_("%B: linking trap-on-NULL-dereference with non-trapping files"),
4752 1.1 christos ibfd);
4753 1.1 christos
4754 1.1 christos bfd_set_error (bfd_error_bad_value);
4755 1.1 christos ok = FALSE;
4756 1.1 christos }
4757 1.1 christos if ((in_flags & EF_IA_64_BE) != (out_flags & EF_IA_64_BE))
4758 1.1 christos {
4759 1.1 christos (*_bfd_error_handler)
4760 1.1 christos (_("%B: linking big-endian files with little-endian files"),
4761 1.1 christos ibfd);
4762 1.1 christos
4763 1.1 christos bfd_set_error (bfd_error_bad_value);
4764 1.1 christos ok = FALSE;
4765 1.1 christos }
4766 1.1 christos if ((in_flags & EF_IA_64_ABI64) != (out_flags & EF_IA_64_ABI64))
4767 1.1 christos {
4768 1.1 christos (*_bfd_error_handler)
4769 1.1 christos (_("%B: linking 64-bit files with 32-bit files"),
4770 1.1 christos ibfd);
4771 1.1 christos
4772 1.1 christos bfd_set_error (bfd_error_bad_value);
4773 1.1 christos ok = FALSE;
4774 1.1 christos }
4775 1.1 christos if ((in_flags & EF_IA_64_CONS_GP) != (out_flags & EF_IA_64_CONS_GP))
4776 1.1 christos {
4777 1.1 christos (*_bfd_error_handler)
4778 1.1 christos (_("%B: linking constant-gp files with non-constant-gp files"),
4779 1.1 christos ibfd);
4780 1.1 christos
4781 1.1 christos bfd_set_error (bfd_error_bad_value);
4782 1.1 christos ok = FALSE;
4783 1.1 christos }
4784 1.1 christos if ((in_flags & EF_IA_64_NOFUNCDESC_CONS_GP)
4785 1.1 christos != (out_flags & EF_IA_64_NOFUNCDESC_CONS_GP))
4786 1.1 christos {
4787 1.1 christos (*_bfd_error_handler)
4788 1.1 christos (_("%B: linking auto-pic files with non-auto-pic files"),
4789 1.1 christos ibfd);
4790 1.1 christos
4791 1.1 christos bfd_set_error (bfd_error_bad_value);
4792 1.1 christos ok = FALSE;
4793 1.1 christos }
4794 1.1 christos
4795 1.1 christos return ok;
4796 1.1 christos }
4797 1.1 christos
4798 1.1 christos static bfd_boolean
4799 1.1 christos elfNN_ia64_print_private_bfd_data (bfd *abfd, void * ptr)
4800 1.1 christos {
4801 1.1 christos FILE *file = (FILE *) ptr;
4802 1.1 christos flagword flags = elf_elfheader (abfd)->e_flags;
4803 1.1 christos
4804 1.1 christos BFD_ASSERT (abfd != NULL && ptr != NULL);
4805 1.1 christos
4806 1.1 christos fprintf (file, "private flags = %s%s%s%s%s%s%s%s\n",
4807 1.1 christos (flags & EF_IA_64_TRAPNIL) ? "TRAPNIL, " : "",
4808 1.1 christos (flags & EF_IA_64_EXT) ? "EXT, " : "",
4809 1.1 christos (flags & EF_IA_64_BE) ? "BE, " : "LE, ",
4810 1.1 christos (flags & EF_IA_64_REDUCEDFP) ? "REDUCEDFP, " : "",
4811 1.1 christos (flags & EF_IA_64_CONS_GP) ? "CONS_GP, " : "",
4812 1.1 christos (flags & EF_IA_64_NOFUNCDESC_CONS_GP) ? "NOFUNCDESC_CONS_GP, " : "",
4813 1.1 christos (flags & EF_IA_64_ABSOLUTE) ? "ABSOLUTE, " : "",
4814 1.1.1.2 christos (flags & EF_IA_64_ABI64) ? "ABI64" : "ABI32");
4815 1.1.1.2 christos
4816 1.1.1.2 christos _bfd_elf_print_private_bfd_data (abfd, ptr);
4817 1.1 christos return TRUE;
4818 1.1 christos }
4819 1.1 christos
4820 1.1 christos static enum elf_reloc_type_class
4821 1.1 christos elfNN_ia64_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4822 1.1 christos const asection *rel_sec ATTRIBUTE_UNUSED,
4823 1.1 christos const Elf_Internal_Rela *rela)
4824 1.1 christos {
4825 1.1 christos switch ((int) ELFNN_R_TYPE (rela->r_info))
4826 1.1 christos {
4827 1.1 christos case R_IA64_REL32MSB:
4828 1.1 christos case R_IA64_REL32LSB:
4829 1.1 christos case R_IA64_REL64MSB:
4830 1.1 christos case R_IA64_REL64LSB:
4831 1.1 christos return reloc_class_relative;
4832 1.1 christos case R_IA64_IPLTMSB:
4833 1.1 christos case R_IA64_IPLTLSB:
4834 1.1 christos return reloc_class_plt;
4835 1.1 christos case R_IA64_COPY:
4836 1.1 christos return reloc_class_copy;
4837 1.1 christos default:
4838 1.1 christos return reloc_class_normal;
4839 1.1 christos }
4840 1.1 christos }
4841 1.1 christos
4842 1.1 christos static const struct bfd_elf_special_section elfNN_ia64_special_sections[] =
4843 1.1 christos {
4844 1.1 christos { STRING_COMMA_LEN (".sbss"), -1, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
4845 1.1 christos { STRING_COMMA_LEN (".sdata"), -1, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
4846 1.1 christos { NULL, 0, 0, 0, 0 }
4847 1.1 christos };
4848 1.1 christos
4849 1.1 christos static bfd_boolean
4850 1.1 christos elfNN_ia64_object_p (bfd *abfd)
4851 1.1 christos {
4852 1.1 christos asection *sec;
4853 1.1 christos asection *group, *unwi, *unw;
4854 1.1 christos flagword flags;
4855 1.1 christos const char *name;
4856 1.1 christos char *unwi_name, *unw_name;
4857 1.1 christos bfd_size_type amt;
4858 1.1 christos
4859 1.1 christos if (abfd->flags & DYNAMIC)
4860 1.1 christos return TRUE;
4861 1.1 christos
4862 1.1 christos /* Flags for fake group section. */
4863 1.1 christos flags = (SEC_LINKER_CREATED | SEC_GROUP | SEC_LINK_ONCE
4864 1.1 christos | SEC_EXCLUDE);
4865 1.1 christos
4866 1.1 christos /* We add a fake section group for each .gnu.linkonce.t.* section,
4867 1.1 christos which isn't in a section group, and its unwind sections. */
4868 1.1 christos for (sec = abfd->sections; sec != NULL; sec = sec->next)
4869 1.1 christos {
4870 1.1 christos if (elf_sec_group (sec) == NULL
4871 1.1 christos && ((sec->flags & (SEC_LINK_ONCE | SEC_CODE | SEC_GROUP))
4872 1.1 christos == (SEC_LINK_ONCE | SEC_CODE))
4873 1.1 christos && CONST_STRNEQ (sec->name, ".gnu.linkonce.t."))
4874 1.1 christos {
4875 1.1 christos name = sec->name + 16;
4876 1.1 christos
4877 1.1 christos amt = strlen (name) + sizeof (".gnu.linkonce.ia64unwi.");
4878 1.1 christos unwi_name = bfd_alloc (abfd, amt);
4879 1.1 christos if (!unwi_name)
4880 1.1 christos return FALSE;
4881 1.1 christos
4882 1.1 christos strcpy (stpcpy (unwi_name, ".gnu.linkonce.ia64unwi."), name);
4883 1.1 christos unwi = bfd_get_section_by_name (abfd, unwi_name);
4884 1.1 christos
4885 1.1 christos amt = strlen (name) + sizeof (".gnu.linkonce.ia64unw.");
4886 1.1 christos unw_name = bfd_alloc (abfd, amt);
4887 1.1 christos if (!unw_name)
4888 1.1 christos return FALSE;
4889 1.1 christos
4890 1.1 christos strcpy (stpcpy (unw_name, ".gnu.linkonce.ia64unw."), name);
4891 1.1 christos unw = bfd_get_section_by_name (abfd, unw_name);
4892 1.1 christos
4893 1.1 christos /* We need to create a fake group section for it and its
4894 1.1 christos unwind sections. */
4895 1.1 christos group = bfd_make_section_anyway_with_flags (abfd, name,
4896 1.1 christos flags);
4897 1.1 christos if (group == NULL)
4898 1.1 christos return FALSE;
4899 1.1 christos
4900 1.1 christos /* Move the fake group section to the beginning. */
4901 1.1 christos bfd_section_list_remove (abfd, group);
4902 1.1 christos bfd_section_list_prepend (abfd, group);
4903 1.1 christos
4904 1.1 christos elf_next_in_group (group) = sec;
4905 1.1 christos
4906 1.1 christos elf_group_name (sec) = name;
4907 1.1 christos elf_next_in_group (sec) = sec;
4908 1.1 christos elf_sec_group (sec) = group;
4909 1.1 christos
4910 1.1 christos if (unwi)
4911 1.1 christos {
4912 1.1 christos elf_group_name (unwi) = name;
4913 1.1 christos elf_next_in_group (unwi) = sec;
4914 1.1 christos elf_next_in_group (sec) = unwi;
4915 1.1 christos elf_sec_group (unwi) = group;
4916 1.1 christos }
4917 1.1 christos
4918 1.1 christos if (unw)
4919 1.1 christos {
4920 1.1 christos elf_group_name (unw) = name;
4921 1.1 christos if (unwi)
4922 1.1 christos {
4923 1.1 christos elf_next_in_group (unw) = elf_next_in_group (unwi);
4924 1.1 christos elf_next_in_group (unwi) = unw;
4925 1.1 christos }
4926 1.1 christos else
4927 1.1 christos {
4928 1.1 christos elf_next_in_group (unw) = sec;
4929 1.1 christos elf_next_in_group (sec) = unw;
4930 1.1 christos }
4931 1.1 christos elf_sec_group (unw) = group;
4932 1.1 christos }
4933 1.1 christos
4934 1.1 christos /* Fake SHT_GROUP section header. */
4935 1.1 christos elf_section_data (group)->this_hdr.bfd_section = group;
4936 1.1 christos elf_section_data (group)->this_hdr.sh_type = SHT_GROUP;
4937 1.1 christos }
4938 1.1.1.3 christos }
4939 1.1.1.3 christos return TRUE;
4940 1.1 christos }
4941 1.1 christos
4942 1.1 christos static bfd_boolean
4943 1.1 christos elfNN_ia64_hpux_vec (const bfd_target *vec)
4944 1.1 christos {
4945 1.1 christos extern const bfd_target ia64_elfNN_hpux_be_vec;
4946 1.1 christos return (vec == &ia64_elfNN_hpux_be_vec);
4947 1.1 christos }
4948 1.1 christos
4949 1.1 christos static void
4950 1.1 christos elfNN_hpux_post_process_headers (bfd *abfd,
4951 1.1 christos struct bfd_link_info *info ATTRIBUTE_UNUSED)
4952 1.1 christos {
4953 1.1 christos Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd);
4954 1.1 christos
4955 1.1 christos i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi;
4956 1.1 christos i_ehdrp->e_ident[EI_ABIVERSION] = 1;
4957 1.1 christos }
4958 1.1 christos
4959 1.1 christos static bfd_boolean
4960 1.1 christos elfNN_hpux_backend_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
4961 1.1 christos asection *sec, int *retval)
4962 1.1 christos {
4963 1.1 christos if (bfd_is_com_section (sec))
4964 1.1 christos {
4965 1.1 christos *retval = SHN_IA_64_ANSI_COMMON;
4966 1.1 christos return TRUE;
4967 1.1 christos }
4968 1.1 christos return FALSE;
4969 1.1 christos }
4970 1.1 christos
4971 1.1 christos static void
4972 1.1 christos elfNN_hpux_backend_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED,
4973 1.1 christos asymbol *asym)
4974 1.1 christos {
4975 1.1 christos elf_symbol_type *elfsym = (elf_symbol_type *) asym;
4976 1.1 christos
4977 1.1 christos switch (elfsym->internal_elf_sym.st_shndx)
4978 1.1 christos {
4979 1.1 christos case SHN_IA_64_ANSI_COMMON:
4980 1.1.1.3 christos asym->section = bfd_com_section_ptr;
4981 1.1 christos asym->value = elfsym->internal_elf_sym.st_size;
4982 1.1.1.3 christos asym->flags &= ~BSF_GLOBAL;
4983 1.1 christos break;
4984 1.1 christos }
4985 1.1 christos }
4986 1.1 christos
4987 1.1 christos #define TARGET_LITTLE_SYM ia64_elfNN_le_vec
4989 1.1 christos #define TARGET_LITTLE_NAME "elfNN-ia64-little"
4990 1.1 christos #define TARGET_BIG_SYM ia64_elfNN_be_vec
4991 1.1 christos #define TARGET_BIG_NAME "elfNN-ia64-big"
4992 1.1 christos #define ELF_ARCH bfd_arch_ia64
4993 1.1 christos #define ELF_TARGET_ID IA64_ELF_DATA
4994 1.1 christos #define ELF_MACHINE_CODE EM_IA_64
4995 1.1 christos #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
4996 1.1 christos #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
4997 1.1 christos #define ELF_MAXPAGESIZE 0x10000 /* 64KB */
4998 1.1 christos #define ELF_COMMONPAGESIZE 0x4000 /* 16KB */
4999 1.1 christos
5000 1.1 christos #define elf_backend_section_from_shdr \
5001 1.1 christos elfNN_ia64_section_from_shdr
5002 1.1 christos #define elf_backend_section_flags \
5003 1.1 christos elfNN_ia64_section_flags
5004 1.1 christos #define elf_backend_fake_sections \
5005 1.1 christos elfNN_ia64_fake_sections
5006 1.1 christos #define elf_backend_final_write_processing \
5007 1.1 christos elfNN_ia64_final_write_processing
5008 1.1 christos #define elf_backend_add_symbol_hook \
5009 1.1 christos elfNN_ia64_add_symbol_hook
5010 1.1 christos #define elf_backend_additional_program_headers \
5011 1.1 christos elfNN_ia64_additional_program_headers
5012 1.1 christos #define elf_backend_modify_segment_map \
5013 1.1 christos elfNN_ia64_modify_segment_map
5014 1.1 christos #define elf_backend_modify_program_headers \
5015 1.1 christos elfNN_ia64_modify_program_headers
5016 1.1 christos #define elf_info_to_howto \
5017 1.1 christos elfNN_ia64_info_to_howto
5018 1.1 christos
5019 1.1 christos #define bfd_elfNN_bfd_reloc_type_lookup \
5020 1.1 christos ia64_elf_reloc_type_lookup
5021 1.1 christos #define bfd_elfNN_bfd_reloc_name_lookup \
5022 1.1 christos ia64_elf_reloc_name_lookup
5023 1.1 christos #define bfd_elfNN_bfd_is_local_label_name \
5024 1.1 christos elfNN_ia64_is_local_label_name
5025 1.1 christos #define bfd_elfNN_bfd_relax_section \
5026 1.1 christos elfNN_ia64_relax_section
5027 1.1 christos
5028 1.1 christos #define elf_backend_object_p \
5029 1.1 christos elfNN_ia64_object_p
5030 1.1 christos
5031 1.1 christos /* Stuff for the BFD linker: */
5032 1.1 christos #define bfd_elfNN_bfd_link_hash_table_create \
5033 1.1 christos elfNN_ia64_hash_table_create
5034 1.1 christos #define elf_backend_create_dynamic_sections \
5035 1.1 christos elfNN_ia64_create_dynamic_sections
5036 1.1 christos #define elf_backend_check_relocs \
5037 1.1 christos elfNN_ia64_check_relocs
5038 1.1 christos #define elf_backend_adjust_dynamic_symbol \
5039 1.1 christos elfNN_ia64_adjust_dynamic_symbol
5040 1.1 christos #define elf_backend_size_dynamic_sections \
5041 1.1 christos elfNN_ia64_size_dynamic_sections
5042 1.1 christos #define elf_backend_omit_section_dynsym \
5043 1.1 christos ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
5044 1.1 christos #define elf_backend_relocate_section \
5045 1.1 christos elfNN_ia64_relocate_section
5046 1.1 christos #define elf_backend_finish_dynamic_symbol \
5047 1.1 christos elfNN_ia64_finish_dynamic_symbol
5048 1.1 christos #define elf_backend_finish_dynamic_sections \
5049 1.1 christos elfNN_ia64_finish_dynamic_sections
5050 1.1 christos #define bfd_elfNN_bfd_final_link \
5051 1.1 christos elfNN_ia64_final_link
5052 1.1 christos
5053 1.1 christos #define bfd_elfNN_bfd_merge_private_bfd_data \
5054 1.1 christos elfNN_ia64_merge_private_bfd_data
5055 1.1 christos #define bfd_elfNN_bfd_set_private_flags \
5056 1.1 christos elfNN_ia64_set_private_flags
5057 1.1 christos #define bfd_elfNN_bfd_print_private_bfd_data \
5058 1.1 christos elfNN_ia64_print_private_bfd_data
5059 1.1 christos
5060 1.1 christos #define elf_backend_plt_readonly 1
5061 1.1 christos #define elf_backend_want_plt_sym 0
5062 1.1 christos #define elf_backend_plt_alignment 5
5063 1.1 christos #define elf_backend_got_header_size 0
5064 1.1 christos #define elf_backend_want_got_plt 1
5065 1.1 christos #define elf_backend_may_use_rel_p 1
5066 1.1 christos #define elf_backend_may_use_rela_p 1
5067 1.1 christos #define elf_backend_default_use_rela_p 1
5068 1.1 christos #define elf_backend_want_dynbss 0
5069 1.1 christos #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
5070 1.1 christos #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
5071 1.1 christos #define elf_backend_fixup_symbol _bfd_elf_link_hash_fixup_symbol
5072 1.1 christos #define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
5073 1.1 christos #define elf_backend_rela_normal 1
5074 1.1 christos #define elf_backend_special_sections elfNN_ia64_special_sections
5075 1.1 christos #define elf_backend_default_execstack 0
5076 1.1 christos
5077 1.1 christos /* FIXME: PR 290: The Intel C compiler generates SHT_IA_64_UNWIND with
5078 1.1 christos SHF_LINK_ORDER. But it doesn't set the sh_link or sh_info fields.
5079 1.1 christos We don't want to flood users with so many error messages. We turn
5080 1.1 christos off the warning for now. It will be turned on later when the Intel
5081 1.1 christos compiler is fixed. */
5082 1.1 christos #define elf_backend_link_order_error_handler NULL
5083 1.1.1.3 christos
5084 1.1 christos #include "elfNN-target.h"
5085 1.1 christos
5086 1.1 christos /* HPUX-specific vectors. */
5087 1.1 christos
5088 1.1 christos #undef TARGET_LITTLE_SYM
5089 1.1 christos #undef TARGET_LITTLE_NAME
5090 1.1 christos #undef TARGET_BIG_SYM
5091 1.1 christos #define TARGET_BIG_SYM ia64_elfNN_hpux_be_vec
5092 1.1 christos #undef TARGET_BIG_NAME
5093 1.1 christos #define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
5094 1.1 christos
5095 1.1 christos /* These are HP-UX specific functions. */
5096 1.1 christos
5097 1.1 christos #undef elf_backend_post_process_headers
5098 1.1 christos #define elf_backend_post_process_headers elfNN_hpux_post_process_headers
5099 1.1 christos
5100 1.1 christos #undef elf_backend_section_from_bfd_section
5101 1.1 christos #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
5102 1.1 christos
5103 1.1 christos #undef elf_backend_symbol_processing
5104 1.1 christos #define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
5105 1.1 christos
5106 1.1 christos #undef elf_backend_want_p_paddr_set_to_zero
5107 1.1 christos #define elf_backend_want_p_paddr_set_to_zero 1
5108 1.1 christos
5109 #undef ELF_COMMONPAGESIZE
5110 #undef ELF_OSABI
5111 #define ELF_OSABI ELFOSABI_HPUX
5112
5113 #undef elfNN_bed
5114 #define elfNN_bed elfNN_ia64_hpux_bed
5115
5116 #include "elfNN-target.h"
5117