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b352eebf | 1 | /* Support for HPPA 64-bit ELF |
fd67aa11 | 2 | Copyright (C) 1999-2024 Free Software Foundation, Inc. |
15bda425 | 3 | |
ae9a127f | 4 | This file is part of BFD, the Binary File Descriptor library. |
15bda425 | 5 | |
ae9a127f NC |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 8 | the Free Software Foundation; either version 3 of the License, or |
ae9a127f | 9 | (at your option) any later version. |
15bda425 | 10 | |
ae9a127f NC |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15bda425 | 15 | |
ae9a127f NC |
16 | You should have received a copy of the GNU General Public License |
17 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
19 | MA 02110-1301, USA. */ | |
15bda425 | 20 | |
15bda425 | 21 | #include "sysdep.h" |
3db64b00 | 22 | #include "bfd.h" |
15bda425 JL |
23 | #include "libbfd.h" |
24 | #include "elf-bfd.h" | |
25 | #include "elf/hppa.h" | |
26 | #include "libhppa.h" | |
27 | #include "elf64-hppa.h" | |
e1fa0163 | 28 | #include "libiberty.h" |
8bc9c892 | 29 | |
15bda425 JL |
30 | #define ARCH_SIZE 64 |
31 | ||
32 | #define PLT_ENTRY_SIZE 0x10 | |
33 | #define DLT_ENTRY_SIZE 0x8 | |
34 | #define OPD_ENTRY_SIZE 0x20 | |
fe8bc63d | 35 | |
15bda425 JL |
36 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/pa20_64/dld.sl" |
37 | ||
38 | /* The stub is supposed to load the target address and target's DP | |
39 | value out of the PLT, then do an external branch to the target | |
40 | address. | |
41 | ||
42 | LDD PLTOFF(%r27),%r1 | |
43 | BVE (%r1) | |
44 | LDD PLTOFF+8(%r27),%r27 | |
45 | ||
46 | Note that we must use the LDD with a 14 bit displacement, not the one | |
47 | with a 5 bit displacement. */ | |
48 | static char plt_stub[] = {0x53, 0x61, 0x00, 0x00, 0xe8, 0x20, 0xd0, 0x00, | |
49 | 0x53, 0x7b, 0x00, 0x00 }; | |
50 | ||
a03bd320 | 51 | struct elf64_hppa_link_hash_entry |
15bda425 | 52 | { |
a03bd320 | 53 | struct elf_link_hash_entry eh; |
15bda425 JL |
54 | |
55 | /* Offsets for this symbol in various linker sections. */ | |
56 | bfd_vma dlt_offset; | |
57 | bfd_vma plt_offset; | |
58 | bfd_vma opd_offset; | |
59 | bfd_vma stub_offset; | |
60 | ||
15bda425 JL |
61 | /* The index of the (possibly local) symbol in the input bfd and its |
62 | associated BFD. Needed so that we can have relocs against local | |
63 | symbols in shared libraries. */ | |
dc810e39 | 64 | long sym_indx; |
15bda425 JL |
65 | bfd *owner; |
66 | ||
67 | /* Dynamic symbols may need to have two different values. One for | |
68 | the dynamic symbol table, one for the normal symbol table. | |
69 | ||
70 | In such cases we store the symbol's real value and section | |
71 | index here so we can restore the real value before we write | |
72 | the normal symbol table. */ | |
73 | bfd_vma st_value; | |
74 | int st_shndx; | |
75 | ||
76 | /* Used to count non-got, non-plt relocations for delayed sizing | |
77 | of relocation sections. */ | |
78 | struct elf64_hppa_dyn_reloc_entry | |
79 | { | |
80 | /* Next relocation in the chain. */ | |
81 | struct elf64_hppa_dyn_reloc_entry *next; | |
82 | ||
83 | /* The type of the relocation. */ | |
84 | int type; | |
85 | ||
86 | /* The input section of the relocation. */ | |
87 | asection *sec; | |
88 | ||
a03bd320 DA |
89 | /* Number of relocs copied in this section. */ |
90 | bfd_size_type count; | |
91 | ||
15bda425 JL |
92 | /* The index of the section symbol for the input section of |
93 | the relocation. Only needed when building shared libraries. */ | |
94 | int sec_symndx; | |
95 | ||
96 | /* The offset within the input section of the relocation. */ | |
97 | bfd_vma offset; | |
98 | ||
99 | /* The addend for the relocation. */ | |
100 | bfd_vma addend; | |
101 | ||
102 | } *reloc_entries; | |
103 | ||
104 | /* Nonzero if this symbol needs an entry in one of the linker | |
105 | sections. */ | |
106 | unsigned want_dlt; | |
107 | unsigned want_plt; | |
108 | unsigned want_opd; | |
109 | unsigned want_stub; | |
110 | }; | |
111 | ||
15bda425 JL |
112 | struct elf64_hppa_link_hash_table |
113 | { | |
114 | struct elf_link_hash_table root; | |
115 | ||
116 | /* Shortcuts to get to the various linker defined sections. */ | |
117 | asection *dlt_sec; | |
118 | asection *dlt_rel_sec; | |
15bda425 JL |
119 | asection *opd_sec; |
120 | asection *opd_rel_sec; | |
121 | asection *other_rel_sec; | |
122 | ||
123 | /* Offset of __gp within .plt section. When the PLT gets large we want | |
124 | to slide __gp into the PLT section so that we can continue to use | |
125 | single DP relative instructions to load values out of the PLT. */ | |
126 | bfd_vma gp_offset; | |
127 | ||
128 | /* Note this is not strictly correct. We should create a stub section for | |
129 | each input section with calls. The stub section should be placed before | |
130 | the section with the call. */ | |
131 | asection *stub_sec; | |
132 | ||
133 | bfd_vma text_segment_base; | |
134 | bfd_vma data_segment_base; | |
135 | ||
15bda425 JL |
136 | /* We build tables to map from an input section back to its |
137 | symbol index. This is the BFD for which we currently have | |
138 | a map. */ | |
139 | bfd *section_syms_bfd; | |
140 | ||
141 | /* Array of symbol numbers for each input section attached to the | |
142 | current BFD. */ | |
143 | int *section_syms; | |
144 | }; | |
145 | ||
a03bd320 | 146 | #define hppa_link_hash_table(p) \ |
0f55320b AM |
147 | ((is_elf_hash_table ((p)->hash) \ |
148 | && elf_hash_table_id (elf_hash_table (p)) == HPPA64_ELF_DATA) \ | |
149 | ? (struct elf64_hppa_link_hash_table *) (p)->hash : NULL) | |
15bda425 | 150 | |
a03bd320 DA |
151 | #define hppa_elf_hash_entry(ent) \ |
152 | ((struct elf64_hppa_link_hash_entry *)(ent)) | |
153 | ||
154 | #define eh_name(eh) \ | |
155 | (eh ? eh->root.root.string : "<undef>") | |
156 | ||
15bda425 | 157 | typedef struct bfd_hash_entry *(*new_hash_entry_func) |
813c8a3c | 158 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); |
15bda425 | 159 | |
15bda425 | 160 | static struct bfd_link_hash_table *elf64_hppa_hash_table_create |
813c8a3c DA |
161 | (bfd *abfd); |
162 | ||
15bda425 JL |
163 | /* This must follow the definitions of the various derived linker |
164 | hash tables and shared functions. */ | |
165 | #include "elf-hppa.h" | |
166 | ||
0a1b45a2 | 167 | static bool elf64_hppa_object_p |
813c8a3c | 168 | (bfd *); |
15bda425 | 169 | |
0a1b45a2 | 170 | static bool elf64_hppa_create_dynamic_sections |
813c8a3c | 171 | (bfd *, struct bfd_link_info *); |
15bda425 | 172 | |
0a1b45a2 | 173 | static bool elf64_hppa_adjust_dynamic_symbol |
813c8a3c | 174 | (struct bfd_link_info *, struct elf_link_hash_entry *); |
15bda425 | 175 | |
0a1b45a2 | 176 | static bool elf64_hppa_mark_milli_and_exported_functions |
813c8a3c | 177 | (struct elf_link_hash_entry *, void *); |
47b7c2db | 178 | |
6e0b88f1 | 179 | static int elf64_hppa_link_output_symbol_hook |
813c8a3c DA |
180 | (struct bfd_link_info *, const char *, Elf_Internal_Sym *, |
181 | asection *, struct elf_link_hash_entry *); | |
99c79b2e | 182 | |
0a1b45a2 | 183 | static bool elf64_hppa_finish_dynamic_symbol |
813c8a3c DA |
184 | (bfd *, struct bfd_link_info *, |
185 | struct elf_link_hash_entry *, Elf_Internal_Sym *); | |
fe8bc63d | 186 | |
0a1b45a2 | 187 | static bool elf64_hppa_finish_dynamic_sections |
813c8a3c | 188 | (bfd *, struct bfd_link_info *); |
15bda425 | 189 | |
0a1b45a2 | 190 | static bool elf64_hppa_check_relocs |
813c8a3c DA |
191 | (bfd *, struct bfd_link_info *, |
192 | asection *, const Elf_Internal_Rela *); | |
15bda425 | 193 | |
0a1b45a2 | 194 | static bool elf64_hppa_dynamic_symbol_p |
813c8a3c | 195 | (struct elf_link_hash_entry *, struct bfd_link_info *); |
15bda425 | 196 | |
0a1b45a2 | 197 | static bool elf64_hppa_mark_exported_functions |
813c8a3c | 198 | (struct elf_link_hash_entry *, void *); |
15bda425 | 199 | |
0a1b45a2 | 200 | static bool elf64_hppa_finalize_opd |
a03bd320 | 201 | (struct elf_link_hash_entry *, void *); |
15bda425 | 202 | |
0a1b45a2 | 203 | static bool elf64_hppa_finalize_dlt |
a03bd320 | 204 | (struct elf_link_hash_entry *, void *); |
15bda425 | 205 | |
0a1b45a2 | 206 | static bool allocate_global_data_dlt |
a03bd320 | 207 | (struct elf_link_hash_entry *, void *); |
15bda425 | 208 | |
0a1b45a2 | 209 | static bool allocate_global_data_plt |
a03bd320 | 210 | (struct elf_link_hash_entry *, void *); |
15bda425 | 211 | |
0a1b45a2 | 212 | static bool allocate_global_data_stub |
a03bd320 | 213 | (struct elf_link_hash_entry *, void *); |
15bda425 | 214 | |
0a1b45a2 | 215 | static bool allocate_global_data_opd |
a03bd320 | 216 | (struct elf_link_hash_entry *, void *); |
15bda425 | 217 | |
0a1b45a2 | 218 | static bool get_reloc_section |
813c8a3c | 219 | (bfd *, struct elf64_hppa_link_hash_table *, asection *); |
15bda425 | 220 | |
0a1b45a2 | 221 | static bool count_dyn_reloc |
a03bd320 | 222 | (bfd *, struct elf64_hppa_link_hash_entry *, |
813c8a3c | 223 | int, asection *, int, bfd_vma, bfd_vma); |
15bda425 | 224 | |
0a1b45a2 | 225 | static bool allocate_dynrel_entries |
a03bd320 | 226 | (struct elf_link_hash_entry *, void *); |
15bda425 | 227 | |
0a1b45a2 | 228 | static bool elf64_hppa_finalize_dynreloc |
a03bd320 | 229 | (struct elf_link_hash_entry *, void *); |
15bda425 | 230 | |
0a1b45a2 | 231 | static bool get_opd |
813c8a3c | 232 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 233 | |
0a1b45a2 | 234 | static bool get_plt |
813c8a3c | 235 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 236 | |
0a1b45a2 | 237 | static bool get_dlt |
813c8a3c | 238 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 239 | |
0a1b45a2 | 240 | static bool get_stub |
813c8a3c | 241 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 242 | |
3fab46d0 | 243 | static int elf64_hppa_elf_get_symbol_type |
813c8a3c | 244 | (Elf_Internal_Sym *, int); |
3fab46d0 | 245 | |
a03bd320 | 246 | /* Initialize an entry in the link hash table. */ |
15bda425 | 247 | |
a03bd320 DA |
248 | static struct bfd_hash_entry * |
249 | hppa64_link_hash_newfunc (struct bfd_hash_entry *entry, | |
250 | struct bfd_hash_table *table, | |
251 | const char *string) | |
15bda425 | 252 | { |
15bda425 JL |
253 | /* Allocate the structure if it has not already been allocated by a |
254 | subclass. */ | |
a03bd320 DA |
255 | if (entry == NULL) |
256 | { | |
257 | entry = bfd_hash_allocate (table, | |
258 | sizeof (struct elf64_hppa_link_hash_entry)); | |
259 | if (entry == NULL) | |
07d6d2b8 | 260 | return entry; |
a03bd320 | 261 | } |
15bda425 | 262 | |
15bda425 | 263 | /* Call the allocation method of the superclass. */ |
a03bd320 DA |
264 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
265 | if (entry != NULL) | |
266 | { | |
267 | struct elf64_hppa_link_hash_entry *hh; | |
15bda425 | 268 | |
a03bd320 DA |
269 | /* Initialize our local data. All zeros. */ |
270 | hh = hppa_elf_hash_entry (entry); | |
271 | memset (&hh->dlt_offset, 0, | |
272 | (sizeof (struct elf64_hppa_link_hash_entry) | |
273 | - offsetof (struct elf64_hppa_link_hash_entry, dlt_offset))); | |
274 | } | |
336549c1 | 275 | |
a03bd320 | 276 | return entry; |
15bda425 JL |
277 | } |
278 | ||
279 | /* Create the derived linker hash table. The PA64 ELF port uses this | |
280 | derived hash table to keep information specific to the PA ElF | |
281 | linker (without using static variables). */ | |
282 | ||
283 | static struct bfd_link_hash_table* | |
813c8a3c | 284 | elf64_hppa_hash_table_create (bfd *abfd) |
15bda425 | 285 | { |
a03bd320 | 286 | struct elf64_hppa_link_hash_table *htab; |
986f0783 | 287 | size_t amt = sizeof (*htab); |
15bda425 | 288 | |
22cdc249 | 289 | htab = bfd_zmalloc (amt); |
a03bd320 DA |
290 | if (htab == NULL) |
291 | return NULL; | |
15bda425 | 292 | |
a03bd320 DA |
293 | if (!_bfd_elf_link_hash_table_init (&htab->root, abfd, |
294 | hppa64_link_hash_newfunc, | |
4dfe6ac6 NC |
295 | sizeof (struct elf64_hppa_link_hash_entry), |
296 | HPPA64_ELF_DATA)) | |
a03bd320 | 297 | { |
22cdc249 | 298 | free (htab); |
a03bd320 DA |
299 | return NULL; |
300 | } | |
15bda425 | 301 | |
0a1b45a2 | 302 | htab->root.dt_pltgot_required = true; |
a03bd320 DA |
303 | htab->text_segment_base = (bfd_vma) -1; |
304 | htab->data_segment_base = (bfd_vma) -1; | |
15bda425 | 305 | |
a03bd320 | 306 | return &htab->root.root; |
15bda425 JL |
307 | } |
308 | \f | |
309 | /* Return nonzero if ABFD represents a PA2.0 ELF64 file. | |
310 | ||
311 | Additionally we set the default architecture and machine. */ | |
0a1b45a2 | 312 | static bool |
813c8a3c | 313 | elf64_hppa_object_p (bfd *abfd) |
15bda425 | 314 | { |
24a5e751 L |
315 | Elf_Internal_Ehdr * i_ehdrp; |
316 | unsigned int flags; | |
d9634ba1 | 317 | |
24a5e751 L |
318 | i_ehdrp = elf_elfheader (abfd); |
319 | if (strcmp (bfd_get_target (abfd), "elf64-hppa-linux") == 0) | |
320 | { | |
9c55345c | 321 | /* GCC on hppa-linux produces binaries with OSABI=GNU, |
6c21aa76 | 322 | but the kernel produces corefiles with OSABI=SysV. */ |
9c55345c | 323 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU |
d97a8924 | 324 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ |
0a1b45a2 | 325 | return false; |
24a5e751 L |
326 | } |
327 | else | |
328 | { | |
d97a8924 DA |
329 | /* HPUX produces binaries with OSABI=HPUX, |
330 | but the kernel produces corefiles with OSABI=SysV. */ | |
331 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX | |
332 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ | |
0a1b45a2 | 333 | return false; |
24a5e751 L |
334 | } |
335 | ||
336 | flags = i_ehdrp->e_flags; | |
d9634ba1 AM |
337 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
338 | { | |
339 | case EFA_PARISC_1_0: | |
340 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
341 | case EFA_PARISC_1_1: | |
342 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
343 | case EFA_PARISC_2_0: | |
d97a8924 | 344 | if (i_ehdrp->e_ident[EI_CLASS] == ELFCLASS64) |
07d6d2b8 | 345 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); |
d97a8924 | 346 | else |
07d6d2b8 | 347 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); |
d9634ba1 AM |
348 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: |
349 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
350 | } | |
351 | /* Don't be fussy. */ | |
0a1b45a2 | 352 | return true; |
15bda425 JL |
353 | } |
354 | ||
355 | /* Given section type (hdr->sh_type), return a boolean indicating | |
356 | whether or not the section is an elf64-hppa specific section. */ | |
0a1b45a2 | 357 | static bool |
6dc132d9 L |
358 | elf64_hppa_section_from_shdr (bfd *abfd, |
359 | Elf_Internal_Shdr *hdr, | |
360 | const char *name, | |
361 | int shindex) | |
15bda425 | 362 | { |
15bda425 JL |
363 | switch (hdr->sh_type) |
364 | { | |
365 | case SHT_PARISC_EXT: | |
366 | if (strcmp (name, ".PARISC.archext") != 0) | |
0a1b45a2 | 367 | return false; |
15bda425 JL |
368 | break; |
369 | case SHT_PARISC_UNWIND: | |
370 | if (strcmp (name, ".PARISC.unwind") != 0) | |
0a1b45a2 | 371 | return false; |
15bda425 JL |
372 | break; |
373 | case SHT_PARISC_DOC: | |
374 | case SHT_PARISC_ANNOT: | |
375 | default: | |
0a1b45a2 | 376 | return false; |
15bda425 JL |
377 | } |
378 | ||
6dc132d9 | 379 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
0a1b45a2 | 380 | return false; |
15bda425 | 381 | |
bf577467 AM |
382 | return ((hdr->sh_flags & SHF_PARISC_SHORT) == 0 |
383 | || bfd_set_section_flags (hdr->bfd_section, | |
384 | hdr->bfd_section->flags | SEC_SMALL_DATA)); | |
15bda425 JL |
385 | } |
386 | ||
15bda425 JL |
387 | /* SEC is a section containing relocs for an input BFD when linking; return |
388 | a suitable section for holding relocs in the output BFD for a link. */ | |
389 | ||
0a1b45a2 | 390 | static bool |
813c8a3c DA |
391 | get_reloc_section (bfd *abfd, |
392 | struct elf64_hppa_link_hash_table *hppa_info, | |
393 | asection *sec) | |
15bda425 JL |
394 | { |
395 | const char *srel_name; | |
396 | asection *srel; | |
397 | bfd *dynobj; | |
398 | ||
399 | srel_name = (bfd_elf_string_from_elf_section | |
400 | (abfd, elf_elfheader(abfd)->e_shstrndx, | |
d4730f92 | 401 | _bfd_elf_single_rel_hdr(sec)->sh_name)); |
15bda425 | 402 | if (srel_name == NULL) |
0a1b45a2 | 403 | return false; |
15bda425 | 404 | |
15bda425 JL |
405 | dynobj = hppa_info->root.dynobj; |
406 | if (!dynobj) | |
407 | hppa_info->root.dynobj = dynobj = abfd; | |
408 | ||
3d4d4302 | 409 | srel = bfd_get_linker_section (dynobj, srel_name); |
15bda425 JL |
410 | if (srel == NULL) |
411 | { | |
3d4d4302 AM |
412 | srel = bfd_make_section_anyway_with_flags (dynobj, srel_name, |
413 | (SEC_ALLOC | |
414 | | SEC_LOAD | |
415 | | SEC_HAS_CONTENTS | |
416 | | SEC_IN_MEMORY | |
417 | | SEC_LINKER_CREATED | |
418 | | SEC_READONLY)); | |
15bda425 | 419 | if (srel == NULL |
fd361982 | 420 | || !bfd_set_section_alignment (srel, 3)) |
0a1b45a2 | 421 | return false; |
15bda425 JL |
422 | } |
423 | ||
424 | hppa_info->other_rel_sec = srel; | |
0a1b45a2 | 425 | return true; |
15bda425 JL |
426 | } |
427 | ||
fe8bc63d | 428 | /* Add a new entry to the list of dynamic relocations against DYN_H. |
15bda425 JL |
429 | |
430 | We use this to keep a record of all the FPTR relocations against a | |
431 | particular symbol so that we can create FPTR relocations in the | |
432 | output file. */ | |
433 | ||
0a1b45a2 | 434 | static bool |
813c8a3c | 435 | count_dyn_reloc (bfd *abfd, |
a03bd320 | 436 | struct elf64_hppa_link_hash_entry *hh, |
813c8a3c DA |
437 | int type, |
438 | asection *sec, | |
07d6d2b8 AM |
439 | int sec_symndx, |
440 | bfd_vma offset, | |
813c8a3c | 441 | bfd_vma addend) |
15bda425 JL |
442 | { |
443 | struct elf64_hppa_dyn_reloc_entry *rent; | |
444 | ||
445 | rent = (struct elf64_hppa_dyn_reloc_entry *) | |
dc810e39 | 446 | bfd_alloc (abfd, (bfd_size_type) sizeof (*rent)); |
15bda425 | 447 | if (!rent) |
0a1b45a2 | 448 | return false; |
15bda425 | 449 | |
a03bd320 | 450 | rent->next = hh->reloc_entries; |
15bda425 JL |
451 | rent->type = type; |
452 | rent->sec = sec; | |
453 | rent->sec_symndx = sec_symndx; | |
454 | rent->offset = offset; | |
455 | rent->addend = addend; | |
a03bd320 | 456 | hh->reloc_entries = rent; |
15bda425 | 457 | |
0a1b45a2 | 458 | return true; |
15bda425 JL |
459 | } |
460 | ||
a03bd320 DA |
461 | /* Return a pointer to the local DLT, PLT and OPD reference counts |
462 | for ABFD. Returns NULL if the storage allocation fails. */ | |
463 | ||
464 | static bfd_signed_vma * | |
465 | hppa64_elf_local_refcounts (bfd *abfd) | |
466 | { | |
467 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
468 | bfd_signed_vma *local_refcounts; | |
68ffbac6 | 469 | |
a03bd320 DA |
470 | local_refcounts = elf_local_got_refcounts (abfd); |
471 | if (local_refcounts == NULL) | |
472 | { | |
473 | bfd_size_type size; | |
474 | ||
475 | /* Allocate space for local DLT, PLT and OPD reference | |
476 | counts. Done this way to save polluting elf_obj_tdata | |
477 | with another target specific pointer. */ | |
478 | size = symtab_hdr->sh_info; | |
479 | size *= 3 * sizeof (bfd_signed_vma); | |
480 | local_refcounts = bfd_zalloc (abfd, size); | |
481 | elf_local_got_refcounts (abfd) = local_refcounts; | |
482 | } | |
483 | return local_refcounts; | |
484 | } | |
485 | ||
15bda425 JL |
486 | /* Scan the RELOCS and record the type of dynamic entries that each |
487 | referenced symbol needs. */ | |
488 | ||
0a1b45a2 | 489 | static bool |
813c8a3c DA |
490 | elf64_hppa_check_relocs (bfd *abfd, |
491 | struct bfd_link_info *info, | |
492 | asection *sec, | |
493 | const Elf_Internal_Rela *relocs) | |
15bda425 JL |
494 | { |
495 | struct elf64_hppa_link_hash_table *hppa_info; | |
496 | const Elf_Internal_Rela *relend; | |
497 | Elf_Internal_Shdr *symtab_hdr; | |
498 | const Elf_Internal_Rela *rel; | |
4fbb74a6 | 499 | unsigned int sec_symndx; |
15bda425 | 500 | |
0e1862bb | 501 | if (bfd_link_relocatable (info)) |
0a1b45a2 | 502 | return true; |
15bda425 JL |
503 | |
504 | /* If this is the first dynamic object found in the link, create | |
505 | the special sections required for dynamic linking. */ | |
506 | if (! elf_hash_table (info)->dynamic_sections_created) | |
507 | { | |
45d6a902 | 508 | if (! _bfd_elf_link_create_dynamic_sections (abfd, info)) |
0a1b45a2 | 509 | return false; |
15bda425 JL |
510 | } |
511 | ||
a03bd320 | 512 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 | 513 | if (hppa_info == NULL) |
0a1b45a2 | 514 | return false; |
15bda425 JL |
515 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
516 | ||
517 | /* If necessary, build a new table holding section symbols indices | |
6cdc0ccc | 518 | for this BFD. */ |
fe8bc63d | 519 | |
0e1862bb | 520 | if (bfd_link_pic (info) && hppa_info->section_syms_bfd != abfd) |
15bda425 | 521 | { |
832d951b | 522 | unsigned long i; |
9ad5cbcf | 523 | unsigned int highest_shndx; |
6cdc0ccc AM |
524 | Elf_Internal_Sym *local_syms = NULL; |
525 | Elf_Internal_Sym *isym, *isymend; | |
dc810e39 | 526 | bfd_size_type amt; |
15bda425 JL |
527 | |
528 | /* We're done with the old cache of section index to section symbol | |
529 | index information. Free it. | |
530 | ||
531 | ?!? Note we leak the last section_syms array. Presumably we | |
532 | could free it in one of the later routines in this file. */ | |
c9594989 | 533 | free (hppa_info->section_syms); |
15bda425 | 534 | |
6cdc0ccc AM |
535 | /* Read this BFD's local symbols. */ |
536 | if (symtab_hdr->sh_info != 0) | |
47b7c2db | 537 | { |
6cdc0ccc AM |
538 | local_syms = (Elf_Internal_Sym *) symtab_hdr->contents; |
539 | if (local_syms == NULL) | |
540 | local_syms = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
541 | symtab_hdr->sh_info, 0, | |
542 | NULL, NULL, NULL); | |
543 | if (local_syms == NULL) | |
0a1b45a2 | 544 | return false; |
9ad5cbcf AM |
545 | } |
546 | ||
6cdc0ccc | 547 | /* Record the highest section index referenced by the local symbols. */ |
15bda425 | 548 | highest_shndx = 0; |
6cdc0ccc AM |
549 | isymend = local_syms + symtab_hdr->sh_info; |
550 | for (isym = local_syms; isym < isymend; isym++) | |
15bda425 | 551 | { |
4fbb74a6 AM |
552 | if (isym->st_shndx > highest_shndx |
553 | && isym->st_shndx < SHN_LORESERVE) | |
15bda425 JL |
554 | highest_shndx = isym->st_shndx; |
555 | } | |
556 | ||
15bda425 JL |
557 | /* Allocate an array to hold the section index to section symbol index |
558 | mapping. Bump by one since we start counting at zero. */ | |
559 | highest_shndx++; | |
dc810e39 AM |
560 | amt = highest_shndx; |
561 | amt *= sizeof (int); | |
562 | hppa_info->section_syms = (int *) bfd_malloc (amt); | |
15bda425 JL |
563 | |
564 | /* Now walk the local symbols again. If we find a section symbol, | |
565 | record the index of the symbol into the section_syms array. */ | |
6cdc0ccc | 566 | for (i = 0, isym = local_syms; isym < isymend; i++, isym++) |
15bda425 JL |
567 | { |
568 | if (ELF_ST_TYPE (isym->st_info) == STT_SECTION) | |
569 | hppa_info->section_syms[isym->st_shndx] = i; | |
570 | } | |
571 | ||
6cdc0ccc AM |
572 | /* We are finished with the local symbols. */ |
573 | if (local_syms != NULL | |
574 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
575 | { | |
576 | if (! info->keep_memory) | |
577 | free (local_syms); | |
578 | else | |
579 | { | |
580 | /* Cache the symbols for elf_link_input_bfd. */ | |
581 | symtab_hdr->contents = (unsigned char *) local_syms; | |
582 | } | |
583 | } | |
15bda425 JL |
584 | |
585 | /* Record which BFD we built the section_syms mapping for. */ | |
586 | hppa_info->section_syms_bfd = abfd; | |
587 | } | |
588 | ||
589 | /* Record the symbol index for this input section. We may need it for | |
590 | relocations when building shared libraries. When not building shared | |
591 | libraries this value is never really used, but assign it to zero to | |
592 | prevent out of bounds memory accesses in other routines. */ | |
0e1862bb | 593 | if (bfd_link_pic (info)) |
15bda425 JL |
594 | { |
595 | sec_symndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
596 | ||
597 | /* If we did not find a section symbol for this section, then | |
598 | something went terribly wrong above. */ | |
4fbb74a6 | 599 | if (sec_symndx == SHN_BAD) |
0a1b45a2 | 600 | return false; |
15bda425 | 601 | |
4fbb74a6 AM |
602 | if (sec_symndx < SHN_LORESERVE) |
603 | sec_symndx = hppa_info->section_syms[sec_symndx]; | |
604 | else | |
605 | sec_symndx = 0; | |
15bda425 JL |
606 | } |
607 | else | |
608 | sec_symndx = 0; | |
fe8bc63d | 609 | |
15bda425 JL |
610 | relend = relocs + sec->reloc_count; |
611 | for (rel = relocs; rel < relend; ++rel) | |
612 | { | |
560e09e9 NC |
613 | enum |
614 | { | |
615 | NEED_DLT = 1, | |
616 | NEED_PLT = 2, | |
617 | NEED_STUB = 4, | |
618 | NEED_OPD = 8, | |
619 | NEED_DYNREL = 16, | |
620 | }; | |
15bda425 | 621 | |
15bda425 | 622 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); |
a03bd320 | 623 | struct elf64_hppa_link_hash_entry *hh; |
15bda425 | 624 | int need_entry; |
0a1b45a2 | 625 | bool maybe_dynamic; |
15bda425 JL |
626 | int dynrel_type = R_PARISC_NONE; |
627 | static reloc_howto_type *howto; | |
628 | ||
629 | if (r_symndx >= symtab_hdr->sh_info) | |
630 | { | |
631 | /* We're dealing with a global symbol -- find its hash entry | |
632 | and mark it as being referenced. */ | |
633 | long indx = r_symndx - symtab_hdr->sh_info; | |
a03bd320 DA |
634 | hh = hppa_elf_hash_entry (elf_sym_hashes (abfd)[indx]); |
635 | while (hh->eh.root.type == bfd_link_hash_indirect | |
636 | || hh->eh.root.type == bfd_link_hash_warning) | |
637 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
15bda425 | 638 | |
81fbe831 AM |
639 | /* PR15323, ref flags aren't set for references in the same |
640 | object. */ | |
a03bd320 | 641 | hh->eh.ref_regular = 1; |
15bda425 | 642 | } |
a03bd320 DA |
643 | else |
644 | hh = NULL; | |
15bda425 JL |
645 | |
646 | /* We can only get preliminary data on whether a symbol is | |
647 | locally or externally defined, as not all of the input files | |
648 | have yet been processed. Do something with what we know, as | |
649 | this may help reduce memory usage and processing time later. */ | |
0a1b45a2 | 650 | maybe_dynamic = false; |
0e1862bb | 651 | if (hh && ((bfd_link_pic (info) |
f5385ebf AM |
652 | && (!info->symbolic |
653 | || info->unresolved_syms_in_shared_libs == RM_IGNORE)) | |
a03bd320 DA |
654 | || !hh->eh.def_regular |
655 | || hh->eh.root.type == bfd_link_hash_defweak)) | |
0a1b45a2 | 656 | maybe_dynamic = true; |
15bda425 JL |
657 | |
658 | howto = elf_hppa_howto_table + ELF64_R_TYPE (rel->r_info); | |
659 | need_entry = 0; | |
660 | switch (howto->type) | |
661 | { | |
662 | /* These are simple indirect references to symbols through the | |
663 | DLT. We need to create a DLT entry for any symbols which | |
664 | appears in a DLTIND relocation. */ | |
665 | case R_PARISC_DLTIND21L: | |
666 | case R_PARISC_DLTIND14R: | |
667 | case R_PARISC_DLTIND14F: | |
668 | case R_PARISC_DLTIND14WR: | |
669 | case R_PARISC_DLTIND14DR: | |
670 | need_entry = NEED_DLT; | |
671 | break; | |
672 | ||
673 | /* ?!? These need a DLT entry. But I have no idea what to do with | |
674 | the "link time TP value. */ | |
675 | case R_PARISC_LTOFF_TP21L: | |
676 | case R_PARISC_LTOFF_TP14R: | |
677 | case R_PARISC_LTOFF_TP14F: | |
678 | case R_PARISC_LTOFF_TP64: | |
679 | case R_PARISC_LTOFF_TP14WR: | |
680 | case R_PARISC_LTOFF_TP14DR: | |
681 | case R_PARISC_LTOFF_TP16F: | |
682 | case R_PARISC_LTOFF_TP16WF: | |
683 | case R_PARISC_LTOFF_TP16DF: | |
684 | need_entry = NEED_DLT; | |
685 | break; | |
686 | ||
687 | /* These are function calls. Depending on their precise target we | |
688 | may need to make a stub for them. The stub uses the PLT, so we | |
689 | need to create PLT entries for these symbols too. */ | |
832d951b | 690 | case R_PARISC_PCREL12F: |
15bda425 JL |
691 | case R_PARISC_PCREL17F: |
692 | case R_PARISC_PCREL22F: | |
693 | case R_PARISC_PCREL32: | |
694 | case R_PARISC_PCREL64: | |
695 | case R_PARISC_PCREL21L: | |
696 | case R_PARISC_PCREL17R: | |
697 | case R_PARISC_PCREL17C: | |
698 | case R_PARISC_PCREL14R: | |
699 | case R_PARISC_PCREL14F: | |
700 | case R_PARISC_PCREL22C: | |
701 | case R_PARISC_PCREL14WR: | |
702 | case R_PARISC_PCREL14DR: | |
703 | case R_PARISC_PCREL16F: | |
704 | case R_PARISC_PCREL16WF: | |
705 | case R_PARISC_PCREL16DF: | |
a03bd320 DA |
706 | /* Function calls might need to go through the .plt, and |
707 | might need a long branch stub. */ | |
708 | if (hh != NULL && hh->eh.type != STT_PARISC_MILLI) | |
709 | need_entry = (NEED_PLT | NEED_STUB); | |
710 | else | |
711 | need_entry = 0; | |
15bda425 JL |
712 | break; |
713 | ||
714 | case R_PARISC_PLTOFF21L: | |
715 | case R_PARISC_PLTOFF14R: | |
716 | case R_PARISC_PLTOFF14F: | |
717 | case R_PARISC_PLTOFF14WR: | |
718 | case R_PARISC_PLTOFF14DR: | |
719 | case R_PARISC_PLTOFF16F: | |
720 | case R_PARISC_PLTOFF16WF: | |
721 | case R_PARISC_PLTOFF16DF: | |
722 | need_entry = (NEED_PLT); | |
723 | break; | |
724 | ||
725 | case R_PARISC_DIR64: | |
0e1862bb | 726 | if (bfd_link_pic (info) || maybe_dynamic) |
15bda425 JL |
727 | need_entry = (NEED_DYNREL); |
728 | dynrel_type = R_PARISC_DIR64; | |
729 | break; | |
730 | ||
731 | /* This is an indirect reference through the DLT to get the address | |
732 | of a OPD descriptor. Thus we need to make a DLT entry that points | |
733 | to an OPD entry. */ | |
734 | case R_PARISC_LTOFF_FPTR21L: | |
735 | case R_PARISC_LTOFF_FPTR14R: | |
736 | case R_PARISC_LTOFF_FPTR14WR: | |
737 | case R_PARISC_LTOFF_FPTR14DR: | |
738 | case R_PARISC_LTOFF_FPTR32: | |
739 | case R_PARISC_LTOFF_FPTR64: | |
740 | case R_PARISC_LTOFF_FPTR16F: | |
741 | case R_PARISC_LTOFF_FPTR16WF: | |
742 | case R_PARISC_LTOFF_FPTR16DF: | |
0e1862bb | 743 | if (bfd_link_pic (info) || maybe_dynamic) |
a03bd320 | 744 | need_entry = (NEED_DLT | NEED_OPD | NEED_PLT); |
15bda425 | 745 | else |
a03bd320 | 746 | need_entry = (NEED_DLT | NEED_OPD | NEED_PLT); |
15bda425 JL |
747 | dynrel_type = R_PARISC_FPTR64; |
748 | break; | |
749 | ||
750 | /* This is a simple OPD entry. */ | |
751 | case R_PARISC_FPTR64: | |
0e1862bb | 752 | if (bfd_link_pic (info) || maybe_dynamic) |
a03bd320 | 753 | need_entry = (NEED_OPD | NEED_PLT | NEED_DYNREL); |
15bda425 | 754 | else |
a03bd320 | 755 | need_entry = (NEED_OPD | NEED_PLT); |
15bda425 JL |
756 | dynrel_type = R_PARISC_FPTR64; |
757 | break; | |
758 | ||
759 | /* Add more cases as needed. */ | |
760 | } | |
761 | ||
762 | if (!need_entry) | |
763 | continue; | |
764 | ||
a03bd320 DA |
765 | if (hh) |
766 | { | |
767 | /* Stash away enough information to be able to find this symbol | |
768 | regardless of whether or not it is local or global. */ | |
769 | hh->owner = abfd; | |
770 | hh->sym_indx = r_symndx; | |
771 | } | |
15bda425 | 772 | |
15bda425 JL |
773 | /* Create what's needed. */ |
774 | if (need_entry & NEED_DLT) | |
775 | { | |
a03bd320 DA |
776 | /* Allocate space for a DLT entry, as well as a dynamic |
777 | relocation for this entry. */ | |
15bda425 JL |
778 | if (! hppa_info->dlt_sec |
779 | && ! get_dlt (abfd, info, hppa_info)) | |
780 | goto err_out; | |
a03bd320 DA |
781 | |
782 | if (hh != NULL) | |
783 | { | |
784 | hh->want_dlt = 1; | |
785 | hh->eh.got.refcount += 1; | |
786 | } | |
787 | else | |
788 | { | |
789 | bfd_signed_vma *local_dlt_refcounts; | |
68ffbac6 | 790 | |
a03bd320 DA |
791 | /* This is a DLT entry for a local symbol. */ |
792 | local_dlt_refcounts = hppa64_elf_local_refcounts (abfd); | |
793 | if (local_dlt_refcounts == NULL) | |
0a1b45a2 | 794 | return false; |
a03bd320 DA |
795 | local_dlt_refcounts[r_symndx] += 1; |
796 | } | |
15bda425 JL |
797 | } |
798 | ||
799 | if (need_entry & NEED_PLT) | |
800 | { | |
9b8a8575 | 801 | if (! hppa_info->root.splt |
15bda425 JL |
802 | && ! get_plt (abfd, info, hppa_info)) |
803 | goto err_out; | |
a03bd320 DA |
804 | |
805 | if (hh != NULL) | |
806 | { | |
807 | hh->want_plt = 1; | |
808 | hh->eh.needs_plt = 1; | |
809 | hh->eh.plt.refcount += 1; | |
810 | } | |
811 | else | |
812 | { | |
813 | bfd_signed_vma *local_dlt_refcounts; | |
814 | bfd_signed_vma *local_plt_refcounts; | |
68ffbac6 | 815 | |
a03bd320 DA |
816 | /* This is a PLT entry for a local symbol. */ |
817 | local_dlt_refcounts = hppa64_elf_local_refcounts (abfd); | |
818 | if (local_dlt_refcounts == NULL) | |
0a1b45a2 | 819 | return false; |
a03bd320 DA |
820 | local_plt_refcounts = local_dlt_refcounts + symtab_hdr->sh_info; |
821 | local_plt_refcounts[r_symndx] += 1; | |
822 | } | |
15bda425 JL |
823 | } |
824 | ||
825 | if (need_entry & NEED_STUB) | |
826 | { | |
827 | if (! hppa_info->stub_sec | |
828 | && ! get_stub (abfd, info, hppa_info)) | |
829 | goto err_out; | |
a03bd320 DA |
830 | if (hh) |
831 | hh->want_stub = 1; | |
15bda425 JL |
832 | } |
833 | ||
834 | if (need_entry & NEED_OPD) | |
835 | { | |
836 | if (! hppa_info->opd_sec | |
837 | && ! get_opd (abfd, info, hppa_info)) | |
838 | goto err_out; | |
839 | ||
a03bd320 DA |
840 | /* FPTRs are not allocated by the dynamic linker for PA64, |
841 | though it is possible that will change in the future. */ | |
fe8bc63d | 842 | |
a03bd320 DA |
843 | if (hh != NULL) |
844 | hh->want_opd = 1; | |
845 | else | |
846 | { | |
847 | bfd_signed_vma *local_dlt_refcounts; | |
848 | bfd_signed_vma *local_opd_refcounts; | |
68ffbac6 | 849 | |
a03bd320 DA |
850 | /* This is a OPD for a local symbol. */ |
851 | local_dlt_refcounts = hppa64_elf_local_refcounts (abfd); | |
852 | if (local_dlt_refcounts == NULL) | |
0a1b45a2 | 853 | return false; |
a03bd320 DA |
854 | local_opd_refcounts = (local_dlt_refcounts |
855 | + 2 * symtab_hdr->sh_info); | |
856 | local_opd_refcounts[r_symndx] += 1; | |
857 | } | |
15bda425 JL |
858 | } |
859 | ||
860 | /* Add a new dynamic relocation to the chain of dynamic | |
861 | relocations for this symbol. */ | |
862 | if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC)) | |
863 | { | |
864 | if (! hppa_info->other_rel_sec | |
865 | && ! get_reloc_section (abfd, hppa_info, sec)) | |
866 | goto err_out; | |
867 | ||
a03bd320 DA |
868 | /* Count dynamic relocations against global symbols. */ |
869 | if (hh != NULL | |
870 | && !count_dyn_reloc (abfd, hh, dynrel_type, sec, | |
871 | sec_symndx, rel->r_offset, rel->r_addend)) | |
15bda425 JL |
872 | goto err_out; |
873 | ||
874 | /* If we are building a shared library and we just recorded | |
875 | a dynamic R_PARISC_FPTR64 relocation, then make sure the | |
876 | section symbol for this section ends up in the dynamic | |
877 | symbol table. */ | |
0e1862bb | 878 | if (bfd_link_pic (info) && dynrel_type == R_PARISC_FPTR64 |
c152c796 | 879 | && ! (bfd_elf_link_record_local_dynamic_symbol |
15bda425 | 880 | (info, abfd, sec_symndx))) |
0a1b45a2 | 881 | return false; |
15bda425 JL |
882 | } |
883 | } | |
884 | ||
0a1b45a2 | 885 | return true; |
15bda425 JL |
886 | |
887 | err_out: | |
0a1b45a2 | 888 | return false; |
15bda425 JL |
889 | } |
890 | ||
891 | struct elf64_hppa_allocate_data | |
892 | { | |
893 | struct bfd_link_info *info; | |
894 | bfd_size_type ofs; | |
895 | }; | |
896 | ||
897 | /* Should we do dynamic things to this symbol? */ | |
898 | ||
0a1b45a2 | 899 | static bool |
a03bd320 | 900 | elf64_hppa_dynamic_symbol_p (struct elf_link_hash_entry *eh, |
813c8a3c | 901 | struct bfd_link_info *info) |
15bda425 | 902 | { |
986a241f RH |
903 | /* ??? What, if anything, needs to happen wrt STV_PROTECTED symbols |
904 | and relocations that retrieve a function descriptor? Assume the | |
905 | worst for now. */ | |
a03bd320 | 906 | if (_bfd_elf_dynamic_symbol_p (eh, info, 1)) |
986a241f RH |
907 | { |
908 | /* ??? Why is this here and not elsewhere is_local_label_name. */ | |
a03bd320 | 909 | if (eh->root.root.string[0] == '$' && eh->root.root.string[1] == '$') |
0a1b45a2 | 910 | return false; |
15bda425 | 911 | |
0a1b45a2 | 912 | return true; |
986a241f RH |
913 | } |
914 | else | |
0a1b45a2 | 915 | return false; |
15bda425 JL |
916 | } |
917 | ||
4cc11e76 | 918 | /* Mark all functions exported by this file so that we can later allocate |
15bda425 JL |
919 | entries in .opd for them. */ |
920 | ||
0a1b45a2 | 921 | static bool |
a03bd320 | 922 | elf64_hppa_mark_exported_functions (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 923 | { |
a03bd320 | 924 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
925 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
926 | struct elf64_hppa_link_hash_table *hppa_info; | |
927 | ||
a03bd320 | 928 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 | 929 | if (hppa_info == NULL) |
0a1b45a2 | 930 | return false; |
15bda425 | 931 | |
a03bd320 DA |
932 | if (eh |
933 | && (eh->root.type == bfd_link_hash_defined | |
934 | || eh->root.type == bfd_link_hash_defweak) | |
935 | && eh->root.u.def.section->output_section != NULL | |
936 | && eh->type == STT_FUNC) | |
15bda425 | 937 | { |
15bda425 JL |
938 | if (! hppa_info->opd_sec |
939 | && ! get_opd (hppa_info->root.dynobj, info, hppa_info)) | |
0a1b45a2 | 940 | return false; |
15bda425 | 941 | |
a03bd320 DA |
942 | hh->want_opd = 1; |
943 | ||
832d951b | 944 | /* Put a flag here for output_symbol_hook. */ |
a03bd320 DA |
945 | hh->st_shndx = -1; |
946 | eh->needs_plt = 1; | |
15bda425 JL |
947 | } |
948 | ||
0a1b45a2 | 949 | return true; |
15bda425 JL |
950 | } |
951 | ||
952 | /* Allocate space for a DLT entry. */ | |
953 | ||
0a1b45a2 | 954 | static bool |
a03bd320 | 955 | allocate_global_data_dlt (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 956 | { |
a03bd320 | 957 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
958 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
959 | ||
a03bd320 | 960 | if (hh->want_dlt) |
15bda425 | 961 | { |
0e1862bb | 962 | if (bfd_link_pic (x->info)) |
15bda425 JL |
963 | { |
964 | /* Possibly add the symbol to the local dynamic symbol | |
965 | table since we might need to create a dynamic relocation | |
966 | against it. */ | |
a03bd320 | 967 | if (eh->dynindx == -1 && eh->type != STT_PARISC_MILLI) |
15bda425 | 968 | { |
a03bd320 | 969 | bfd *owner = eh->root.u.def.section->owner; |
15bda425 | 970 | |
c152c796 | 971 | if (! (bfd_elf_link_record_local_dynamic_symbol |
a03bd320 | 972 | (x->info, owner, hh->sym_indx))) |
0a1b45a2 | 973 | return false; |
15bda425 JL |
974 | } |
975 | } | |
976 | ||
a03bd320 | 977 | hh->dlt_offset = x->ofs; |
15bda425 JL |
978 | x->ofs += DLT_ENTRY_SIZE; |
979 | } | |
0a1b45a2 | 980 | return true; |
15bda425 JL |
981 | } |
982 | ||
983 | /* Allocate space for a DLT.PLT entry. */ | |
984 | ||
0a1b45a2 | 985 | static bool |
a03bd320 | 986 | allocate_global_data_plt (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 987 | { |
a03bd320 | 988 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
4dfe6ac6 | 989 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *) data; |
15bda425 | 990 | |
a03bd320 DA |
991 | if (hh->want_plt |
992 | && elf64_hppa_dynamic_symbol_p (eh, x->info) | |
993 | && !((eh->root.type == bfd_link_hash_defined | |
994 | || eh->root.type == bfd_link_hash_defweak) | |
995 | && eh->root.u.def.section->output_section != NULL)) | |
15bda425 | 996 | { |
a03bd320 | 997 | hh->plt_offset = x->ofs; |
15bda425 | 998 | x->ofs += PLT_ENTRY_SIZE; |
a03bd320 | 999 | if (hh->plt_offset < 0x2000) |
4dfe6ac6 NC |
1000 | { |
1001 | struct elf64_hppa_link_hash_table *hppa_info; | |
1002 | ||
1003 | hppa_info = hppa_link_hash_table (x->info); | |
1004 | if (hppa_info == NULL) | |
0a1b45a2 | 1005 | return false; |
4dfe6ac6 NC |
1006 | |
1007 | hppa_info->gp_offset = hh->plt_offset; | |
1008 | } | |
15bda425 JL |
1009 | } |
1010 | else | |
a03bd320 | 1011 | hh->want_plt = 0; |
15bda425 | 1012 | |
0a1b45a2 | 1013 | return true; |
15bda425 JL |
1014 | } |
1015 | ||
1016 | /* Allocate space for a STUB entry. */ | |
1017 | ||
0a1b45a2 | 1018 | static bool |
a03bd320 | 1019 | allocate_global_data_stub (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 1020 | { |
a03bd320 | 1021 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1022 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
1023 | ||
a03bd320 DA |
1024 | if (hh->want_stub |
1025 | && elf64_hppa_dynamic_symbol_p (eh, x->info) | |
1026 | && !((eh->root.type == bfd_link_hash_defined | |
1027 | || eh->root.type == bfd_link_hash_defweak) | |
1028 | && eh->root.u.def.section->output_section != NULL)) | |
15bda425 | 1029 | { |
a03bd320 | 1030 | hh->stub_offset = x->ofs; |
15bda425 JL |
1031 | x->ofs += sizeof (plt_stub); |
1032 | } | |
1033 | else | |
a03bd320 | 1034 | hh->want_stub = 0; |
0a1b45a2 | 1035 | return true; |
15bda425 JL |
1036 | } |
1037 | ||
1038 | /* Allocate space for a FPTR entry. */ | |
1039 | ||
0a1b45a2 | 1040 | static bool |
a03bd320 | 1041 | allocate_global_data_opd (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 1042 | { |
a03bd320 | 1043 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1044 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
1045 | ||
a03bd320 | 1046 | if (hh && hh->want_opd) |
15bda425 | 1047 | { |
15bda425 JL |
1048 | /* We never need an opd entry for a symbol which is not |
1049 | defined by this output file. */ | |
a03bd320 DA |
1050 | if (hh && (hh->eh.root.type == bfd_link_hash_undefined |
1051 | || hh->eh.root.type == bfd_link_hash_undefweak | |
1052 | || hh->eh.root.u.def.section->output_section == NULL)) | |
1053 | hh->want_opd = 0; | |
15bda425 JL |
1054 | |
1055 | /* If we are creating a shared library, took the address of a local | |
1056 | function or might export this function from this object file, then | |
1057 | we have to create an opd descriptor. */ | |
0e1862bb | 1058 | else if (bfd_link_pic (x->info) |
a03bd320 DA |
1059 | || hh == NULL |
1060 | || (hh->eh.dynindx == -1 && hh->eh.type != STT_PARISC_MILLI) | |
1061 | || (hh->eh.root.type == bfd_link_hash_defined | |
1062 | || hh->eh.root.type == bfd_link_hash_defweak)) | |
15bda425 JL |
1063 | { |
1064 | /* If we are creating a shared library, then we will have to | |
1065 | create a runtime relocation for the symbol to properly | |
1066 | initialize the .opd entry. Make sure the symbol gets | |
1067 | added to the dynamic symbol table. */ | |
0e1862bb | 1068 | if (bfd_link_pic (x->info) |
a03bd320 | 1069 | && (hh == NULL || (hh->eh.dynindx == -1))) |
15bda425 JL |
1070 | { |
1071 | bfd *owner; | |
adfef0bd | 1072 | /* PR 6511: Default to using the dynamic symbol table. */ |
a03bd320 | 1073 | owner = (hh->owner ? hh->owner: eh->root.u.def.section->owner); |
15bda425 | 1074 | |
c152c796 | 1075 | if (!bfd_elf_link_record_local_dynamic_symbol |
a03bd320 | 1076 | (x->info, owner, hh->sym_indx)) |
0a1b45a2 | 1077 | return false; |
15bda425 JL |
1078 | } |
1079 | ||
1080 | /* This may not be necessary or desirable anymore now that | |
1081 | we have some support for dealing with section symbols | |
1082 | in dynamic relocs. But name munging does make the result | |
1083 | much easier to debug. ie, the EPLT reloc will reference | |
1084 | a symbol like .foobar, instead of .text + offset. */ | |
0e1862bb | 1085 | if (bfd_link_pic (x->info) && eh) |
15bda425 JL |
1086 | { |
1087 | char *new_name; | |
1088 | struct elf_link_hash_entry *nh; | |
1089 | ||
e1fa0163 | 1090 | new_name = concat (".", eh->root.root.string, NULL); |
15bda425 JL |
1091 | |
1092 | nh = elf_link_hash_lookup (elf_hash_table (x->info), | |
0a1b45a2 | 1093 | new_name, true, true, true); |
15bda425 | 1094 | |
e1fa0163 | 1095 | free (new_name); |
a03bd320 DA |
1096 | nh->root.type = eh->root.type; |
1097 | nh->root.u.def.value = eh->root.u.def.value; | |
1098 | nh->root.u.def.section = eh->root.u.def.section; | |
15bda425 | 1099 | |
c152c796 | 1100 | if (! bfd_elf_link_record_dynamic_symbol (x->info, nh)) |
0a1b45a2 | 1101 | return false; |
15bda425 | 1102 | } |
a03bd320 | 1103 | hh->opd_offset = x->ofs; |
15bda425 JL |
1104 | x->ofs += OPD_ENTRY_SIZE; |
1105 | } | |
1106 | ||
1107 | /* Otherwise we do not need an opd entry. */ | |
1108 | else | |
a03bd320 | 1109 | hh->want_opd = 0; |
15bda425 | 1110 | } |
0a1b45a2 | 1111 | return true; |
15bda425 JL |
1112 | } |
1113 | ||
1114 | /* HP requires the EI_OSABI field to be filled in. The assignment to | |
1115 | EI_ABIVERSION may not be strictly necessary. */ | |
1116 | ||
0a1b45a2 | 1117 | static bool |
ed7e9d0b | 1118 | elf64_hppa_init_file_header (bfd *abfd, struct bfd_link_info *info) |
15bda425 | 1119 | { |
ed7e9d0b | 1120 | Elf_Internal_Ehdr *i_ehdrp; |
15bda425 | 1121 | |
ed7e9d0b | 1122 | if (!_bfd_elf_init_file_header (abfd, info)) |
0a1b45a2 | 1123 | return false; |
68ffbac6 | 1124 | |
ed7e9d0b | 1125 | i_ehdrp = elf_elfheader (abfd); |
d1036acb L |
1126 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; |
1127 | i_ehdrp->e_ident[EI_ABIVERSION] = 1; | |
0a1b45a2 | 1128 | return true; |
15bda425 JL |
1129 | } |
1130 | ||
1131 | /* Create function descriptor section (.opd). This section is called .opd | |
4cc11e76 | 1132 | because it contains "official procedure descriptors". The "official" |
15bda425 JL |
1133 | refers to the fact that these descriptors are used when taking the address |
1134 | of a procedure, thus ensuring a unique address for each procedure. */ | |
1135 | ||
0a1b45a2 | 1136 | static bool |
813c8a3c DA |
1137 | get_opd (bfd *abfd, |
1138 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1139 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1140 | { |
1141 | asection *opd; | |
1142 | bfd *dynobj; | |
1143 | ||
1144 | opd = hppa_info->opd_sec; | |
1145 | if (!opd) | |
1146 | { | |
1147 | dynobj = hppa_info->root.dynobj; | |
1148 | if (!dynobj) | |
1149 | hppa_info->root.dynobj = dynobj = abfd; | |
1150 | ||
3d4d4302 AM |
1151 | opd = bfd_make_section_anyway_with_flags (dynobj, ".opd", |
1152 | (SEC_ALLOC | |
1153 | | SEC_LOAD | |
1154 | | SEC_HAS_CONTENTS | |
1155 | | SEC_IN_MEMORY | |
1156 | | SEC_LINKER_CREATED)); | |
15bda425 | 1157 | if (!opd |
fd361982 | 1158 | || !bfd_set_section_alignment (opd, 3)) |
15bda425 JL |
1159 | { |
1160 | BFD_ASSERT (0); | |
0a1b45a2 | 1161 | return false; |
15bda425 JL |
1162 | } |
1163 | ||
1164 | hppa_info->opd_sec = opd; | |
1165 | } | |
1166 | ||
0a1b45a2 | 1167 | return true; |
15bda425 JL |
1168 | } |
1169 | ||
1170 | /* Create the PLT section. */ | |
1171 | ||
0a1b45a2 | 1172 | static bool |
813c8a3c DA |
1173 | get_plt (bfd *abfd, |
1174 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1175 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1176 | { |
1177 | asection *plt; | |
1178 | bfd *dynobj; | |
1179 | ||
9b8a8575 | 1180 | plt = hppa_info->root.splt; |
15bda425 JL |
1181 | if (!plt) |
1182 | { | |
1183 | dynobj = hppa_info->root.dynobj; | |
1184 | if (!dynobj) | |
1185 | hppa_info->root.dynobj = dynobj = abfd; | |
1186 | ||
3d4d4302 AM |
1187 | plt = bfd_make_section_anyway_with_flags (dynobj, ".plt", |
1188 | (SEC_ALLOC | |
1189 | | SEC_LOAD | |
1190 | | SEC_HAS_CONTENTS | |
1191 | | SEC_IN_MEMORY | |
1192 | | SEC_LINKER_CREATED)); | |
15bda425 | 1193 | if (!plt |
fd361982 | 1194 | || !bfd_set_section_alignment (plt, 3)) |
15bda425 JL |
1195 | { |
1196 | BFD_ASSERT (0); | |
0a1b45a2 | 1197 | return false; |
15bda425 JL |
1198 | } |
1199 | ||
9b8a8575 | 1200 | hppa_info->root.splt = plt; |
15bda425 JL |
1201 | } |
1202 | ||
0a1b45a2 | 1203 | return true; |
15bda425 JL |
1204 | } |
1205 | ||
1206 | /* Create the DLT section. */ | |
1207 | ||
0a1b45a2 | 1208 | static bool |
813c8a3c DA |
1209 | get_dlt (bfd *abfd, |
1210 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1211 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1212 | { |
1213 | asection *dlt; | |
1214 | bfd *dynobj; | |
1215 | ||
1216 | dlt = hppa_info->dlt_sec; | |
1217 | if (!dlt) | |
1218 | { | |
1219 | dynobj = hppa_info->root.dynobj; | |
1220 | if (!dynobj) | |
1221 | hppa_info->root.dynobj = dynobj = abfd; | |
1222 | ||
3d4d4302 AM |
1223 | dlt = bfd_make_section_anyway_with_flags (dynobj, ".dlt", |
1224 | (SEC_ALLOC | |
1225 | | SEC_LOAD | |
1226 | | SEC_HAS_CONTENTS | |
1227 | | SEC_IN_MEMORY | |
1228 | | SEC_LINKER_CREATED)); | |
15bda425 | 1229 | if (!dlt |
fd361982 | 1230 | || !bfd_set_section_alignment (dlt, 3)) |
15bda425 JL |
1231 | { |
1232 | BFD_ASSERT (0); | |
0a1b45a2 | 1233 | return false; |
15bda425 JL |
1234 | } |
1235 | ||
1236 | hppa_info->dlt_sec = dlt; | |
1237 | } | |
1238 | ||
0a1b45a2 | 1239 | return true; |
15bda425 JL |
1240 | } |
1241 | ||
1242 | /* Create the stubs section. */ | |
1243 | ||
0a1b45a2 | 1244 | static bool |
813c8a3c DA |
1245 | get_stub (bfd *abfd, |
1246 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1247 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1248 | { |
1249 | asection *stub; | |
1250 | bfd *dynobj; | |
1251 | ||
1252 | stub = hppa_info->stub_sec; | |
1253 | if (!stub) | |
1254 | { | |
1255 | dynobj = hppa_info->root.dynobj; | |
1256 | if (!dynobj) | |
1257 | hppa_info->root.dynobj = dynobj = abfd; | |
1258 | ||
3d4d4302 AM |
1259 | stub = bfd_make_section_anyway_with_flags (dynobj, ".stub", |
1260 | (SEC_ALLOC | SEC_LOAD | |
1261 | | SEC_HAS_CONTENTS | |
1262 | | SEC_IN_MEMORY | |
1263 | | SEC_READONLY | |
1264 | | SEC_LINKER_CREATED)); | |
15bda425 | 1265 | if (!stub |
fd361982 | 1266 | || !bfd_set_section_alignment (stub, 3)) |
15bda425 JL |
1267 | { |
1268 | BFD_ASSERT (0); | |
0a1b45a2 | 1269 | return false; |
15bda425 JL |
1270 | } |
1271 | ||
1272 | hppa_info->stub_sec = stub; | |
1273 | } | |
1274 | ||
0a1b45a2 | 1275 | return true; |
15bda425 JL |
1276 | } |
1277 | ||
1278 | /* Create sections necessary for dynamic linking. This is only a rough | |
1279 | cut and will likely change as we learn more about the somewhat | |
1280 | unusual dynamic linking scheme HP uses. | |
1281 | ||
1282 | .stub: | |
1283 | Contains code to implement cross-space calls. The first time one | |
1284 | of the stubs is used it will call into the dynamic linker, later | |
1285 | calls will go straight to the target. | |
1286 | ||
1287 | The only stub we support right now looks like | |
1288 | ||
1289 | ldd OFFSET(%dp),%r1 | |
1290 | bve %r0(%r1) | |
1291 | ldd OFFSET+8(%dp),%dp | |
1292 | ||
1293 | Other stubs may be needed in the future. We may want the remove | |
1294 | the break/nop instruction. It is only used right now to keep the | |
1295 | offset of a .plt entry and a .stub entry in sync. | |
1296 | ||
1297 | .dlt: | |
1298 | This is what most people call the .got. HP used a different name. | |
1299 | Losers. | |
1300 | ||
1301 | .rela.dlt: | |
1302 | Relocations for the DLT. | |
1303 | ||
1304 | .plt: | |
1305 | Function pointers as address,gp pairs. | |
1306 | ||
1307 | .rela.plt: | |
1308 | Should contain dynamic IPLT (and EPLT?) relocations. | |
1309 | ||
1310 | .opd: | |
fe8bc63d | 1311 | FPTRS |
15bda425 JL |
1312 | |
1313 | .rela.opd: | |
1314 | EPLT relocations for symbols exported from shared libraries. */ | |
1315 | ||
0a1b45a2 | 1316 | static bool |
813c8a3c DA |
1317 | elf64_hppa_create_dynamic_sections (bfd *abfd, |
1318 | struct bfd_link_info *info) | |
15bda425 JL |
1319 | { |
1320 | asection *s; | |
4dfe6ac6 NC |
1321 | struct elf64_hppa_link_hash_table *hppa_info; |
1322 | ||
1323 | hppa_info = hppa_link_hash_table (info); | |
1324 | if (hppa_info == NULL) | |
0a1b45a2 | 1325 | return false; |
15bda425 | 1326 | |
4dfe6ac6 | 1327 | if (! get_stub (abfd, info, hppa_info)) |
0a1b45a2 | 1328 | return false; |
15bda425 | 1329 | |
4dfe6ac6 | 1330 | if (! get_dlt (abfd, info, hppa_info)) |
0a1b45a2 | 1331 | return false; |
15bda425 | 1332 | |
4dfe6ac6 | 1333 | if (! get_plt (abfd, info, hppa_info)) |
0a1b45a2 | 1334 | return false; |
15bda425 | 1335 | |
4dfe6ac6 | 1336 | if (! get_opd (abfd, info, hppa_info)) |
0a1b45a2 | 1337 | return false; |
15bda425 | 1338 | |
3d4d4302 AM |
1339 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.dlt", |
1340 | (SEC_ALLOC | SEC_LOAD | |
1341 | | SEC_HAS_CONTENTS | |
1342 | | SEC_IN_MEMORY | |
1343 | | SEC_READONLY | |
1344 | | SEC_LINKER_CREATED)); | |
15bda425 | 1345 | if (s == NULL |
fd361982 | 1346 | || !bfd_set_section_alignment (s, 3)) |
0a1b45a2 | 1347 | return false; |
4dfe6ac6 | 1348 | hppa_info->dlt_rel_sec = s; |
15bda425 | 1349 | |
3d4d4302 AM |
1350 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.plt", |
1351 | (SEC_ALLOC | SEC_LOAD | |
1352 | | SEC_HAS_CONTENTS | |
1353 | | SEC_IN_MEMORY | |
1354 | | SEC_READONLY | |
1355 | | SEC_LINKER_CREATED)); | |
15bda425 | 1356 | if (s == NULL |
fd361982 | 1357 | || !bfd_set_section_alignment (s, 3)) |
0a1b45a2 | 1358 | return false; |
9b8a8575 | 1359 | hppa_info->root.srelplt = s; |
15bda425 | 1360 | |
3d4d4302 AM |
1361 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.data", |
1362 | (SEC_ALLOC | SEC_LOAD | |
1363 | | SEC_HAS_CONTENTS | |
1364 | | SEC_IN_MEMORY | |
1365 | | SEC_READONLY | |
1366 | | SEC_LINKER_CREATED)); | |
15bda425 | 1367 | if (s == NULL |
fd361982 | 1368 | || !bfd_set_section_alignment (s, 3)) |
0a1b45a2 | 1369 | return false; |
4dfe6ac6 | 1370 | hppa_info->other_rel_sec = s; |
15bda425 | 1371 | |
3d4d4302 AM |
1372 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.opd", |
1373 | (SEC_ALLOC | SEC_LOAD | |
1374 | | SEC_HAS_CONTENTS | |
1375 | | SEC_IN_MEMORY | |
1376 | | SEC_READONLY | |
1377 | | SEC_LINKER_CREATED)); | |
15bda425 | 1378 | if (s == NULL |
fd361982 | 1379 | || !bfd_set_section_alignment (s, 3)) |
0a1b45a2 | 1380 | return false; |
4dfe6ac6 | 1381 | hppa_info->opd_rel_sec = s; |
15bda425 | 1382 | |
0a1b45a2 | 1383 | return true; |
15bda425 JL |
1384 | } |
1385 | ||
1386 | /* Allocate dynamic relocations for those symbols that turned out | |
1387 | to be dynamic. */ | |
1388 | ||
0a1b45a2 | 1389 | static bool |
a03bd320 | 1390 | allocate_dynrel_entries (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 1391 | { |
a03bd320 | 1392 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1393 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
1394 | struct elf64_hppa_link_hash_table *hppa_info; | |
1395 | struct elf64_hppa_dyn_reloc_entry *rent; | |
0a1b45a2 | 1396 | bool dynamic_symbol, shared; |
15bda425 | 1397 | |
a03bd320 | 1398 | hppa_info = hppa_link_hash_table (x->info); |
4dfe6ac6 | 1399 | if (hppa_info == NULL) |
0a1b45a2 | 1400 | return false; |
4dfe6ac6 | 1401 | |
a03bd320 | 1402 | dynamic_symbol = elf64_hppa_dynamic_symbol_p (eh, x->info); |
0e1862bb | 1403 | shared = bfd_link_pic (x->info); |
15bda425 JL |
1404 | |
1405 | /* We may need to allocate relocations for a non-dynamic symbol | |
1406 | when creating a shared library. */ | |
1407 | if (!dynamic_symbol && !shared) | |
0a1b45a2 | 1408 | return true; |
15bda425 JL |
1409 | |
1410 | /* Take care of the normal data relocations. */ | |
1411 | ||
a03bd320 | 1412 | for (rent = hh->reloc_entries; rent; rent = rent->next) |
15bda425 | 1413 | { |
d663e1cd JL |
1414 | /* Allocate one iff we are building a shared library, the relocation |
1415 | isn't a R_PARISC_FPTR64, or we don't want an opd entry. */ | |
a03bd320 | 1416 | if (!shared && rent->type == R_PARISC_FPTR64 && hh->want_opd) |
d663e1cd JL |
1417 | continue; |
1418 | ||
eea6121a | 1419 | hppa_info->other_rel_sec->size += sizeof (Elf64_External_Rela); |
15bda425 JL |
1420 | |
1421 | /* Make sure this symbol gets into the dynamic symbol table if it is | |
1422 | not already recorded. ?!? This should not be in the loop since | |
1423 | the symbol need only be added once. */ | |
a03bd320 | 1424 | if (eh->dynindx == -1 && eh->type != STT_PARISC_MILLI) |
c152c796 | 1425 | if (!bfd_elf_link_record_local_dynamic_symbol |
a03bd320 | 1426 | (x->info, rent->sec->owner, hh->sym_indx)) |
0a1b45a2 | 1427 | return false; |
15bda425 JL |
1428 | } |
1429 | ||
1430 | /* Take care of the GOT and PLT relocations. */ | |
1431 | ||
a03bd320 | 1432 | if ((dynamic_symbol || shared) && hh->want_dlt) |
eea6121a | 1433 | hppa_info->dlt_rel_sec->size += sizeof (Elf64_External_Rela); |
15bda425 JL |
1434 | |
1435 | /* If we are building a shared library, then every symbol that has an | |
1436 | opd entry will need an EPLT relocation to relocate the symbol's address | |
1437 | and __gp value based on the runtime load address. */ | |
a03bd320 | 1438 | if (shared && hh->want_opd) |
eea6121a | 1439 | hppa_info->opd_rel_sec->size += sizeof (Elf64_External_Rela); |
15bda425 | 1440 | |
a03bd320 | 1441 | if (hh->want_plt && dynamic_symbol) |
15bda425 JL |
1442 | { |
1443 | bfd_size_type t = 0; | |
1444 | ||
1445 | /* Dynamic symbols get one IPLT relocation. Local symbols in | |
1446 | shared libraries get two REL relocations. Local symbols in | |
1447 | main applications get nothing. */ | |
1448 | if (dynamic_symbol) | |
1449 | t = sizeof (Elf64_External_Rela); | |
1450 | else if (shared) | |
1451 | t = 2 * sizeof (Elf64_External_Rela); | |
1452 | ||
9b8a8575 | 1453 | hppa_info->root.srelplt->size += t; |
15bda425 JL |
1454 | } |
1455 | ||
0a1b45a2 | 1456 | return true; |
15bda425 JL |
1457 | } |
1458 | ||
1459 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
1460 | regular object. */ | |
1461 | ||
0a1b45a2 | 1462 | static bool |
813c8a3c | 1463 | elf64_hppa_adjust_dynamic_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
a03bd320 | 1464 | struct elf_link_hash_entry *eh) |
15bda425 JL |
1465 | { |
1466 | /* ??? Undefined symbols with PLT entries should be re-defined | |
1467 | to be the PLT entry. */ | |
1468 | ||
1469 | /* If this is a weak symbol, and there is a real definition, the | |
1470 | processor independent code will have arranged for us to see the | |
1471 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 1472 | if (eh->is_weakalias) |
15bda425 | 1473 | { |
60d67dc8 AM |
1474 | struct elf_link_hash_entry *def = weakdef (eh); |
1475 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
1476 | eh->root.u.def.section = def->root.u.def.section; | |
1477 | eh->root.u.def.value = def->root.u.def.value; | |
0a1b45a2 | 1478 | return true; |
15bda425 JL |
1479 | } |
1480 | ||
1481 | /* If this is a reference to a symbol defined by a dynamic object which | |
1482 | is not a function, we might allocate the symbol in our .dynbss section | |
1483 | and allocate a COPY dynamic relocation. | |
1484 | ||
1485 | But PA64 code is canonically PIC, so as a rule we can avoid this sort | |
1486 | of hackery. */ | |
1487 | ||
0a1b45a2 | 1488 | return true; |
15bda425 JL |
1489 | } |
1490 | ||
47b7c2db AM |
1491 | /* This function is called via elf_link_hash_traverse to mark millicode |
1492 | symbols with a dynindx of -1 and to remove the string table reference | |
1493 | from the dynamic symbol table. If the symbol is not a millicode symbol, | |
1494 | elf64_hppa_mark_exported_functions is called. */ | |
1495 | ||
0a1b45a2 | 1496 | static bool |
a03bd320 | 1497 | elf64_hppa_mark_milli_and_exported_functions (struct elf_link_hash_entry *eh, |
813c8a3c | 1498 | void *data) |
47b7c2db | 1499 | { |
7686d77d | 1500 | struct bfd_link_info *info = (struct bfd_link_info *) data; |
47b7c2db | 1501 | |
7686d77d | 1502 | if (eh->type == STT_PARISC_MILLI) |
47b7c2db | 1503 | { |
7686d77d | 1504 | if (eh->dynindx != -1) |
47b7c2db | 1505 | { |
7686d77d | 1506 | eh->dynindx = -1; |
47b7c2db | 1507 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, |
7686d77d | 1508 | eh->dynstr_index); |
47b7c2db | 1509 | } |
0a1b45a2 | 1510 | return true; |
47b7c2db AM |
1511 | } |
1512 | ||
a03bd320 | 1513 | return elf64_hppa_mark_exported_functions (eh, data); |
47b7c2db AM |
1514 | } |
1515 | ||
15bda425 JL |
1516 | /* Set the final sizes of the dynamic sections and allocate memory for |
1517 | the contents of our special sections. */ | |
1518 | ||
0a1b45a2 | 1519 | static bool |
af969b14 | 1520 | elf64_hppa_late_size_sections (bfd *output_bfd, struct bfd_link_info *info) |
15bda425 | 1521 | { |
a03bd320 DA |
1522 | struct elf64_hppa_link_hash_table *hppa_info; |
1523 | struct elf64_hppa_allocate_data data; | |
15bda425 | 1524 | bfd *dynobj; |
a03bd320 DA |
1525 | bfd *ibfd; |
1526 | asection *sec; | |
0a1b45a2 | 1527 | bool relocs; |
15bda425 | 1528 | |
a03bd320 | 1529 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 | 1530 | if (hppa_info == NULL) |
0a1b45a2 | 1531 | return false; |
15bda425 | 1532 | |
ce558b89 | 1533 | dynobj = hppa_info->root.dynobj; |
af969b14 AM |
1534 | if (dynobj == NULL) |
1535 | return true; | |
15bda425 | 1536 | |
47b7c2db AM |
1537 | /* Mark each function this program exports so that we will allocate |
1538 | space in the .opd section for each function's FPTR. If we are | |
1539 | creating dynamic sections, change the dynamic index of millicode | |
1540 | symbols to -1 and remove them from the string table for .dynstr. | |
1541 | ||
1542 | We have to traverse the main linker hash table since we have to | |
1543 | find functions which may not have been mentioned in any relocs. */ | |
ce558b89 AM |
1544 | elf_link_hash_traverse (&hppa_info->root, |
1545 | (hppa_info->root.dynamic_sections_created | |
47b7c2db AM |
1546 | ? elf64_hppa_mark_milli_and_exported_functions |
1547 | : elf64_hppa_mark_exported_functions), | |
1548 | info); | |
1549 | ||
ce558b89 | 1550 | if (hppa_info->root.dynamic_sections_created) |
15bda425 JL |
1551 | { |
1552 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 1553 | if (bfd_link_executable (info) && !info->nointerp) |
15bda425 | 1554 | { |
3d4d4302 | 1555 | sec = bfd_get_linker_section (dynobj, ".interp"); |
a03bd320 DA |
1556 | BFD_ASSERT (sec != NULL); |
1557 | sec->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
1558 | sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
15bda425 JL |
1559 | } |
1560 | } | |
1561 | else | |
1562 | { | |
1563 | /* We may have created entries in the .rela.got section. | |
1564 | However, if we are not creating the dynamic sections, we will | |
1565 | not actually use these entries. Reset the size of .rela.dlt, | |
1566 | which will cause it to get stripped from the output file | |
1567 | below. */ | |
ce558b89 | 1568 | sec = hppa_info->dlt_rel_sec; |
a03bd320 DA |
1569 | if (sec != NULL) |
1570 | sec->size = 0; | |
1571 | } | |
1572 | ||
1573 | /* Set up DLT, PLT and OPD offsets for local syms, and space for local | |
1574 | dynamic relocs. */ | |
c72f2fb2 | 1575 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
a03bd320 DA |
1576 | { |
1577 | bfd_signed_vma *local_dlt; | |
1578 | bfd_signed_vma *end_local_dlt; | |
1579 | bfd_signed_vma *local_plt; | |
1580 | bfd_signed_vma *end_local_plt; | |
1581 | bfd_signed_vma *local_opd; | |
1582 | bfd_signed_vma *end_local_opd; | |
1583 | bfd_size_type locsymcount; | |
1584 | Elf_Internal_Shdr *symtab_hdr; | |
1585 | asection *srel; | |
1586 | ||
1587 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
1588 | continue; | |
1589 | ||
1590 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
1591 | { | |
1592 | struct elf64_hppa_dyn_reloc_entry *hdh_p; | |
1593 | ||
1594 | for (hdh_p = ((struct elf64_hppa_dyn_reloc_entry *) | |
1595 | elf_section_data (sec)->local_dynrel); | |
1596 | hdh_p != NULL; | |
1597 | hdh_p = hdh_p->next) | |
1598 | { | |
1599 | if (!bfd_is_abs_section (hdh_p->sec) | |
1600 | && bfd_is_abs_section (hdh_p->sec->output_section)) | |
1601 | { | |
1602 | /* Input section has been discarded, either because | |
1603 | it is a copy of a linkonce section or due to | |
1604 | linker script /DISCARD/, so we'll be discarding | |
1605 | the relocs too. */ | |
1606 | } | |
1607 | else if (hdh_p->count != 0) | |
1608 | { | |
1609 | srel = elf_section_data (hdh_p->sec)->sreloc; | |
1610 | srel->size += hdh_p->count * sizeof (Elf64_External_Rela); | |
1611 | if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0) | |
1612 | info->flags |= DF_TEXTREL; | |
1613 | } | |
1614 | } | |
1615 | } | |
1616 | ||
1617 | local_dlt = elf_local_got_refcounts (ibfd); | |
1618 | if (!local_dlt) | |
1619 | continue; | |
1620 | ||
1621 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
1622 | locsymcount = symtab_hdr->sh_info; | |
1623 | end_local_dlt = local_dlt + locsymcount; | |
1624 | sec = hppa_info->dlt_sec; | |
1625 | srel = hppa_info->dlt_rel_sec; | |
1626 | for (; local_dlt < end_local_dlt; ++local_dlt) | |
1627 | { | |
1628 | if (*local_dlt > 0) | |
1629 | { | |
1630 | *local_dlt = sec->size; | |
1631 | sec->size += DLT_ENTRY_SIZE; | |
0e1862bb | 1632 | if (bfd_link_pic (info)) |
07d6d2b8 | 1633 | { |
a03bd320 | 1634 | srel->size += sizeof (Elf64_External_Rela); |
07d6d2b8 | 1635 | } |
a03bd320 DA |
1636 | } |
1637 | else | |
1638 | *local_dlt = (bfd_vma) -1; | |
1639 | } | |
1640 | ||
1641 | local_plt = end_local_dlt; | |
1642 | end_local_plt = local_plt + locsymcount; | |
1643 | if (! hppa_info->root.dynamic_sections_created) | |
1644 | { | |
1645 | /* Won't be used, but be safe. */ | |
1646 | for (; local_plt < end_local_plt; ++local_plt) | |
1647 | *local_plt = (bfd_vma) -1; | |
1648 | } | |
1649 | else | |
1650 | { | |
9b8a8575 L |
1651 | sec = hppa_info->root.splt; |
1652 | srel = hppa_info->root.srelplt; | |
a03bd320 DA |
1653 | for (; local_plt < end_local_plt; ++local_plt) |
1654 | { | |
1655 | if (*local_plt > 0) | |
1656 | { | |
1657 | *local_plt = sec->size; | |
1658 | sec->size += PLT_ENTRY_SIZE; | |
0e1862bb | 1659 | if (bfd_link_pic (info)) |
a03bd320 DA |
1660 | srel->size += sizeof (Elf64_External_Rela); |
1661 | } | |
1662 | else | |
1663 | *local_plt = (bfd_vma) -1; | |
1664 | } | |
1665 | } | |
1666 | ||
1667 | local_opd = end_local_plt; | |
1668 | end_local_opd = local_opd + locsymcount; | |
1669 | if (! hppa_info->root.dynamic_sections_created) | |
1670 | { | |
1671 | /* Won't be used, but be safe. */ | |
1672 | for (; local_opd < end_local_opd; ++local_opd) | |
1673 | *local_opd = (bfd_vma) -1; | |
1674 | } | |
1675 | else | |
1676 | { | |
1677 | sec = hppa_info->opd_sec; | |
1678 | srel = hppa_info->opd_rel_sec; | |
1679 | for (; local_opd < end_local_opd; ++local_opd) | |
1680 | { | |
1681 | if (*local_opd > 0) | |
1682 | { | |
1683 | *local_opd = sec->size; | |
1684 | sec->size += OPD_ENTRY_SIZE; | |
0e1862bb | 1685 | if (bfd_link_pic (info)) |
a03bd320 DA |
1686 | srel->size += sizeof (Elf64_External_Rela); |
1687 | } | |
1688 | else | |
1689 | *local_opd = (bfd_vma) -1; | |
1690 | } | |
1691 | } | |
15bda425 JL |
1692 | } |
1693 | ||
1694 | /* Allocate the GOT entries. */ | |
1695 | ||
1696 | data.info = info; | |
a03bd320 | 1697 | if (hppa_info->dlt_sec) |
15bda425 | 1698 | { |
a03bd320 | 1699 | data.ofs = hppa_info->dlt_sec->size; |
ce558b89 | 1700 | elf_link_hash_traverse (&hppa_info->root, |
a03bd320 | 1701 | allocate_global_data_dlt, &data); |
eea6121a | 1702 | hppa_info->dlt_sec->size = data.ofs; |
a03bd320 | 1703 | } |
15bda425 | 1704 | |
9b8a8575 | 1705 | if (hppa_info->root.splt) |
a03bd320 | 1706 | { |
9b8a8575 | 1707 | data.ofs = hppa_info->root.splt->size; |
ce558b89 | 1708 | elf_link_hash_traverse (&hppa_info->root, |
07d6d2b8 | 1709 | allocate_global_data_plt, &data); |
9b8a8575 | 1710 | hppa_info->root.splt->size = data.ofs; |
a03bd320 | 1711 | } |
15bda425 | 1712 | |
a03bd320 DA |
1713 | if (hppa_info->stub_sec) |
1714 | { | |
15bda425 | 1715 | data.ofs = 0x0; |
ce558b89 | 1716 | elf_link_hash_traverse (&hppa_info->root, |
a03bd320 | 1717 | allocate_global_data_stub, &data); |
eea6121a | 1718 | hppa_info->stub_sec->size = data.ofs; |
15bda425 JL |
1719 | } |
1720 | ||
15bda425 | 1721 | /* Allocate space for entries in the .opd section. */ |
a03bd320 | 1722 | if (hppa_info->opd_sec) |
15bda425 | 1723 | { |
a03bd320 | 1724 | data.ofs = hppa_info->opd_sec->size; |
ce558b89 | 1725 | elf_link_hash_traverse (&hppa_info->root, |
a03bd320 | 1726 | allocate_global_data_opd, &data); |
eea6121a | 1727 | hppa_info->opd_sec->size = data.ofs; |
15bda425 JL |
1728 | } |
1729 | ||
1730 | /* Now allocate space for dynamic relocations, if necessary. */ | |
1731 | if (hppa_info->root.dynamic_sections_created) | |
ce558b89 | 1732 | elf_link_hash_traverse (&hppa_info->root, |
a03bd320 | 1733 | allocate_dynrel_entries, &data); |
15bda425 JL |
1734 | |
1735 | /* The sizes of all the sections are set. Allocate memory for them. */ | |
0a1b45a2 | 1736 | relocs = false; |
a03bd320 | 1737 | for (sec = dynobj->sections; sec != NULL; sec = sec->next) |
15bda425 JL |
1738 | { |
1739 | const char *name; | |
15bda425 | 1740 | |
a03bd320 | 1741 | if ((sec->flags & SEC_LINKER_CREATED) == 0) |
15bda425 JL |
1742 | continue; |
1743 | ||
1744 | /* It's OK to base decisions on the section name, because none | |
1745 | of the dynobj section names depend upon the input files. */ | |
fd361982 | 1746 | name = bfd_section_name (sec); |
15bda425 | 1747 | |
15bda425 JL |
1748 | if (strcmp (name, ".plt") == 0) |
1749 | { | |
c456f082 | 1750 | /* Remember whether there is a PLT. */ |
3084d7a2 | 1751 | ; |
15bda425 | 1752 | } |
c456f082 | 1753 | else if (strcmp (name, ".opd") == 0 |
08dedd66 | 1754 | || startswith (name, ".dlt") |
c456f082 AM |
1755 | || strcmp (name, ".stub") == 0 |
1756 | || strcmp (name, ".got") == 0) | |
15bda425 | 1757 | { |
d663e1cd | 1758 | /* Strip this section if we don't need it; see the comment below. */ |
15bda425 | 1759 | } |
08dedd66 | 1760 | else if (startswith (name, ".rela")) |
15bda425 | 1761 | { |
a03bd320 | 1762 | if (sec->size != 0) |
15bda425 | 1763 | { |
15bda425 JL |
1764 | /* Remember whether there are any reloc sections other |
1765 | than .rela.plt. */ | |
1766 | if (strcmp (name, ".rela.plt") != 0) | |
0a1b45a2 | 1767 | relocs = true; |
15bda425 JL |
1768 | |
1769 | /* We use the reloc_count field as a counter if we need | |
1770 | to copy relocs into the output file. */ | |
a03bd320 | 1771 | sec->reloc_count = 0; |
15bda425 JL |
1772 | } |
1773 | } | |
c456f082 | 1774 | else |
15bda425 JL |
1775 | { |
1776 | /* It's not one of our sections, so don't allocate space. */ | |
1777 | continue; | |
1778 | } | |
1779 | ||
a03bd320 | 1780 | if (sec->size == 0) |
15bda425 | 1781 | { |
c456f082 AM |
1782 | /* If we don't need this section, strip it from the |
1783 | output file. This is mostly to handle .rela.bss and | |
1784 | .rela.plt. We must create both sections in | |
1785 | create_dynamic_sections, because they must be created | |
1786 | before the linker maps input sections to output | |
1787 | sections. The linker does that before | |
1788 | adjust_dynamic_symbol is called, and it is that | |
1789 | function which decides whether anything needs to go | |
1790 | into these sections. */ | |
a03bd320 | 1791 | sec->flags |= SEC_EXCLUDE; |
15bda425 JL |
1792 | continue; |
1793 | } | |
1794 | ||
a03bd320 | 1795 | if ((sec->flags & SEC_HAS_CONTENTS) == 0) |
c456f082 AM |
1796 | continue; |
1797 | ||
15bda425 | 1798 | /* Allocate memory for the section contents if it has not |
832d951b AM |
1799 | been allocated already. We use bfd_zalloc here in case |
1800 | unused entries are not reclaimed before the section's | |
1801 | contents are written out. This should not happen, but this | |
1802 | way if it does, we get a R_PARISC_NONE reloc instead of | |
1803 | garbage. */ | |
a03bd320 | 1804 | if (sec->contents == NULL) |
15bda425 | 1805 | { |
a03bd320 DA |
1806 | sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->size); |
1807 | if (sec->contents == NULL) | |
0a1b45a2 | 1808 | return false; |
15bda425 JL |
1809 | } |
1810 | } | |
1811 | ||
ce558b89 | 1812 | if (hppa_info->root.dynamic_sections_created) |
15bda425 JL |
1813 | { |
1814 | /* Always create a DT_PLTGOT. It actually has nothing to do with | |
1815 | the PLT, it is how we communicate the __gp value of a load | |
1816 | module to the dynamic linker. */ | |
dc810e39 | 1817 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 1818 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 | 1819 | |
3084d7a2 | 1820 | if (!add_dynamic_entry (DT_HP_DLD_FLAGS, 0)) |
0a1b45a2 | 1821 | return false; |
15bda425 JL |
1822 | |
1823 | /* Add some entries to the .dynamic section. We fill in the | |
1824 | values later, in elf64_hppa_finish_dynamic_sections, but we | |
1825 | must add the entries now so that we get the correct size for | |
1826 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
1827 | dynamic linker and used by the debugger. */ | |
0e1862bb | 1828 | if (! bfd_link_pic (info)) |
15bda425 | 1829 | { |
3084d7a2 | 1830 | if (!add_dynamic_entry (DT_HP_DLD_HOOK, 0) |
dc810e39 | 1831 | || !add_dynamic_entry (DT_HP_LOAD_MAP, 0)) |
0a1b45a2 | 1832 | return false; |
15bda425 JL |
1833 | } |
1834 | ||
f2482cb2 NC |
1835 | /* Force DT_FLAGS to always be set. |
1836 | Required by HPUX 11.00 patch PHSS_26559. */ | |
1837 | if (!add_dynamic_entry (DT_FLAGS, (info)->flags)) | |
0a1b45a2 | 1838 | return false; |
15bda425 | 1839 | } |
dc810e39 | 1840 | #undef add_dynamic_entry |
15bda425 | 1841 | |
3084d7a2 | 1842 | return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs); |
15bda425 JL |
1843 | } |
1844 | ||
1845 | /* Called after we have output the symbol into the dynamic symbol | |
1846 | table, but before we output the symbol into the normal symbol | |
1847 | table. | |
1848 | ||
1849 | For some symbols we had to change their address when outputting | |
1850 | the dynamic symbol table. We undo that change here so that | |
1851 | the symbols have their expected value in the normal symbol | |
1852 | table. Ick. */ | |
1853 | ||
6e0b88f1 | 1854 | static int |
a03bd320 | 1855 | elf64_hppa_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
813c8a3c DA |
1856 | const char *name, |
1857 | Elf_Internal_Sym *sym, | |
1858 | asection *input_sec ATTRIBUTE_UNUSED, | |
a03bd320 | 1859 | struct elf_link_hash_entry *eh) |
15bda425 | 1860 | { |
a03bd320 | 1861 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1862 | |
1863 | /* We may be called with the file symbol or section symbols. | |
1864 | They never need munging, so it is safe to ignore them. */ | |
a03bd320 | 1865 | if (!name || !eh) |
6e0b88f1 | 1866 | return 1; |
15bda425 | 1867 | |
832d951b AM |
1868 | /* Function symbols for which we created .opd entries *may* have been |
1869 | munged by finish_dynamic_symbol and have to be un-munged here. | |
1870 | ||
1871 | Note that finish_dynamic_symbol sometimes turns dynamic symbols | |
1872 | into non-dynamic ones, so we initialize st_shndx to -1 in | |
1873 | mark_exported_functions and check to see if it was overwritten | |
a03bd320 DA |
1874 | here instead of just checking eh->dynindx. */ |
1875 | if (hh->want_opd && hh->st_shndx != -1) | |
15bda425 JL |
1876 | { |
1877 | /* Restore the saved value and section index. */ | |
a03bd320 DA |
1878 | sym->st_value = hh->st_value; |
1879 | sym->st_shndx = hh->st_shndx; | |
15bda425 JL |
1880 | } |
1881 | ||
6e0b88f1 | 1882 | return 1; |
15bda425 JL |
1883 | } |
1884 | ||
1885 | /* Finish up dynamic symbol handling. We set the contents of various | |
1886 | dynamic sections here. */ | |
1887 | ||
0a1b45a2 | 1888 | static bool |
813c8a3c DA |
1889 | elf64_hppa_finish_dynamic_symbol (bfd *output_bfd, |
1890 | struct bfd_link_info *info, | |
a03bd320 | 1891 | struct elf_link_hash_entry *eh, |
813c8a3c | 1892 | Elf_Internal_Sym *sym) |
15bda425 | 1893 | { |
a03bd320 | 1894 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
c7e2358a | 1895 | asection *stub, *splt, *sopd, *spltrel; |
15bda425 | 1896 | struct elf64_hppa_link_hash_table *hppa_info; |
15bda425 | 1897 | |
a03bd320 | 1898 | hppa_info = hppa_link_hash_table (info); |
15bda425 JL |
1899 | |
1900 | stub = hppa_info->stub_sec; | |
9b8a8575 | 1901 | splt = hppa_info->root.splt; |
15bda425 | 1902 | sopd = hppa_info->opd_sec; |
9b8a8575 | 1903 | spltrel = hppa_info->root.srelplt; |
15bda425 | 1904 | |
15bda425 JL |
1905 | /* Incredible. It is actually necessary to NOT use the symbol's real |
1906 | value when building the dynamic symbol table for a shared library. | |
1907 | At least for symbols that refer to functions. | |
1908 | ||
1909 | We will store a new value and section index into the symbol long | |
1910 | enough to output it into the dynamic symbol table, then we restore | |
1911 | the original values (in elf64_hppa_link_output_symbol_hook). */ | |
a03bd320 | 1912 | if (hh->want_opd) |
15bda425 | 1913 | { |
f12123c0 | 1914 | BFD_ASSERT (sopd != NULL); |
d663e1cd | 1915 | |
15bda425 JL |
1916 | /* Save away the original value and section index so that we |
1917 | can restore them later. */ | |
a03bd320 DA |
1918 | hh->st_value = sym->st_value; |
1919 | hh->st_shndx = sym->st_shndx; | |
15bda425 JL |
1920 | |
1921 | /* For the dynamic symbol table entry, we want the value to be | |
1922 | address of this symbol's entry within the .opd section. */ | |
a03bd320 | 1923 | sym->st_value = (hh->opd_offset |
15bda425 JL |
1924 | + sopd->output_offset |
1925 | + sopd->output_section->vma); | |
1926 | sym->st_shndx = _bfd_elf_section_from_bfd_section (output_bfd, | |
1927 | sopd->output_section); | |
1928 | } | |
1929 | ||
1930 | /* Initialize a .plt entry if requested. */ | |
a03bd320 DA |
1931 | if (hh->want_plt |
1932 | && elf64_hppa_dynamic_symbol_p (eh, info)) | |
15bda425 JL |
1933 | { |
1934 | bfd_vma value; | |
1935 | Elf_Internal_Rela rel; | |
947216bf | 1936 | bfd_byte *loc; |
15bda425 | 1937 | |
f12123c0 | 1938 | BFD_ASSERT (splt != NULL && spltrel != NULL); |
d663e1cd | 1939 | |
15bda425 JL |
1940 | /* We do not actually care about the value in the PLT entry |
1941 | if we are creating a shared library and the symbol is | |
1942 | still undefined, we create a dynamic relocation to fill | |
1943 | in the correct value. */ | |
0e1862bb | 1944 | if (bfd_link_pic (info) && eh->root.type == bfd_link_hash_undefined) |
15bda425 JL |
1945 | value = 0; |
1946 | else | |
a03bd320 | 1947 | value = (eh->root.u.def.value + eh->root.u.def.section->vma); |
15bda425 | 1948 | |
fe8bc63d | 1949 | /* Fill in the entry in the procedure linkage table. |
15bda425 JL |
1950 | |
1951 | The format of a plt entry is | |
fe8bc63d | 1952 | <funcaddr> <__gp>. |
15bda425 JL |
1953 | |
1954 | plt_offset is the offset within the PLT section at which to | |
fe8bc63d | 1955 | install the PLT entry. |
15bda425 JL |
1956 | |
1957 | We are modifying the in-memory PLT contents here, so we do not add | |
1958 | in the output_offset of the PLT section. */ | |
1959 | ||
a03bd320 | 1960 | bfd_put_64 (splt->owner, value, splt->contents + hh->plt_offset); |
586338b8 | 1961 | value = _bfd_get_gp_value (info->output_bfd); |
a03bd320 | 1962 | bfd_put_64 (splt->owner, value, splt->contents + hh->plt_offset + 0x8); |
15bda425 JL |
1963 | |
1964 | /* Create a dynamic IPLT relocation for this entry. | |
1965 | ||
1966 | We are creating a relocation in the output file's PLT section, | |
1967 | which is included within the DLT secton. So we do need to include | |
1968 | the PLT's output_offset in the computation of the relocation's | |
1969 | address. */ | |
a03bd320 | 1970 | rel.r_offset = (hh->plt_offset + splt->output_offset |
15bda425 | 1971 | + splt->output_section->vma); |
a03bd320 | 1972 | rel.r_info = ELF64_R_INFO (hh->eh.dynindx, R_PARISC_IPLT); |
15bda425 JL |
1973 | rel.r_addend = 0; |
1974 | ||
947216bf AM |
1975 | loc = spltrel->contents; |
1976 | loc += spltrel->reloc_count++ * sizeof (Elf64_External_Rela); | |
586338b8 | 1977 | bfd_elf64_swap_reloca_out (info->output_bfd, &rel, loc); |
15bda425 JL |
1978 | } |
1979 | ||
1980 | /* Initialize an external call stub entry if requested. */ | |
a03bd320 DA |
1981 | if (hh->want_stub |
1982 | && elf64_hppa_dynamic_symbol_p (eh, info)) | |
15bda425 JL |
1983 | { |
1984 | bfd_vma value; | |
1985 | int insn; | |
b352eebf | 1986 | unsigned int max_offset; |
15bda425 | 1987 | |
f12123c0 | 1988 | BFD_ASSERT (stub != NULL); |
d663e1cd | 1989 | |
15bda425 JL |
1990 | /* Install the generic stub template. |
1991 | ||
1992 | We are modifying the contents of the stub section, so we do not | |
1993 | need to include the stub section's output_offset here. */ | |
a03bd320 | 1994 | memcpy (stub->contents + hh->stub_offset, plt_stub, sizeof (plt_stub)); |
15bda425 JL |
1995 | |
1996 | /* Fix up the first ldd instruction. | |
1997 | ||
1998 | We are modifying the contents of the STUB section in memory, | |
fe8bc63d | 1999 | so we do not need to include its output offset in this computation. |
15bda425 JL |
2000 | |
2001 | Note the plt_offset value is the value of the PLT entry relative to | |
2002 | the start of the PLT section. These instructions will reference | |
2003 | data relative to the value of __gp, which may not necessarily have | |
2004 | the same address as the start of the PLT section. | |
2005 | ||
2006 | gp_offset contains the offset of __gp within the PLT section. */ | |
a03bd320 | 2007 | value = hh->plt_offset - hppa_info->gp_offset; |
fe8bc63d | 2008 | |
a03bd320 | 2009 | insn = bfd_get_32 (stub->owner, stub->contents + hh->stub_offset); |
b352eebf AM |
2010 | if (output_bfd->arch_info->mach >= 25) |
2011 | { | |
2012 | /* Wide mode allows 16 bit offsets. */ | |
2013 | max_offset = 32768; | |
2014 | insn &= ~ 0xfff1; | |
dc810e39 | 2015 | insn |= re_assemble_16 ((int) value); |
b352eebf AM |
2016 | } |
2017 | else | |
2018 | { | |
2019 | max_offset = 8192; | |
2020 | insn &= ~ 0x3ff1; | |
dc810e39 | 2021 | insn |= re_assemble_14 ((int) value); |
b352eebf AM |
2022 | } |
2023 | ||
2024 | if ((value & 7) || value + max_offset >= 2*max_offset - 8) | |
2025 | { | |
4eca0228 | 2026 | _bfd_error_handler |
695344c0 | 2027 | /* xgettext:c-format */ |
2dcf00ce AM |
2028 | (_("stub entry for %s cannot load .plt, dp offset = %" PRId64), |
2029 | hh->eh.root.root.string, (int64_t) value); | |
0a1b45a2 | 2030 | return false; |
b352eebf AM |
2031 | } |
2032 | ||
dc810e39 | 2033 | bfd_put_32 (stub->owner, (bfd_vma) insn, |
a03bd320 | 2034 | stub->contents + hh->stub_offset); |
15bda425 JL |
2035 | |
2036 | /* Fix up the second ldd instruction. */ | |
b352eebf | 2037 | value += 8; |
a03bd320 | 2038 | insn = bfd_get_32 (stub->owner, stub->contents + hh->stub_offset + 8); |
b352eebf AM |
2039 | if (output_bfd->arch_info->mach >= 25) |
2040 | { | |
2041 | insn &= ~ 0xfff1; | |
dc810e39 | 2042 | insn |= re_assemble_16 ((int) value); |
b352eebf AM |
2043 | } |
2044 | else | |
2045 | { | |
2046 | insn &= ~ 0x3ff1; | |
dc810e39 | 2047 | insn |= re_assemble_14 ((int) value); |
b352eebf | 2048 | } |
dc810e39 | 2049 | bfd_put_32 (stub->owner, (bfd_vma) insn, |
a03bd320 | 2050 | stub->contents + hh->stub_offset + 8); |
15bda425 JL |
2051 | } |
2052 | ||
0a1b45a2 | 2053 | return true; |
15bda425 JL |
2054 | } |
2055 | ||
2056 | /* The .opd section contains FPTRs for each function this file | |
2057 | exports. Initialize the FPTR entries. */ | |
2058 | ||
0a1b45a2 | 2059 | static bool |
a03bd320 | 2060 | elf64_hppa_finalize_opd (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 2061 | { |
a03bd320 | 2062 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
2063 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
2064 | struct elf64_hppa_link_hash_table *hppa_info; | |
15bda425 JL |
2065 | asection *sopd; |
2066 | asection *sopdrel; | |
2067 | ||
a03bd320 | 2068 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 | 2069 | if (hppa_info == NULL) |
0a1b45a2 | 2070 | return false; |
4dfe6ac6 | 2071 | |
15bda425 JL |
2072 | sopd = hppa_info->opd_sec; |
2073 | sopdrel = hppa_info->opd_rel_sec; | |
2074 | ||
a03bd320 | 2075 | if (hh->want_opd) |
15bda425 JL |
2076 | { |
2077 | bfd_vma value; | |
2078 | ||
fe8bc63d | 2079 | /* The first two words of an .opd entry are zero. |
15bda425 JL |
2080 | |
2081 | We are modifying the contents of the OPD section in memory, so we | |
2082 | do not need to include its output offset in this computation. */ | |
a03bd320 | 2083 | memset (sopd->contents + hh->opd_offset, 0, 16); |
15bda425 | 2084 | |
a03bd320 DA |
2085 | value = (eh->root.u.def.value |
2086 | + eh->root.u.def.section->output_section->vma | |
2087 | + eh->root.u.def.section->output_offset); | |
15bda425 JL |
2088 | |
2089 | /* The next word is the address of the function. */ | |
a03bd320 | 2090 | bfd_put_64 (sopd->owner, value, sopd->contents + hh->opd_offset + 16); |
15bda425 JL |
2091 | |
2092 | /* The last word is our local __gp value. */ | |
586338b8 | 2093 | value = _bfd_get_gp_value (info->output_bfd); |
a03bd320 | 2094 | bfd_put_64 (sopd->owner, value, sopd->contents + hh->opd_offset + 24); |
15bda425 JL |
2095 | } |
2096 | ||
2097 | /* If we are generating a shared library, we must generate EPLT relocations | |
2098 | for each entry in the .opd, even for static functions (they may have | |
2099 | had their address taken). */ | |
0e1862bb | 2100 | if (bfd_link_pic (info) && hh->want_opd) |
15bda425 | 2101 | { |
947216bf AM |
2102 | Elf_Internal_Rela rel; |
2103 | bfd_byte *loc; | |
15bda425 JL |
2104 | int dynindx; |
2105 | ||
2106 | /* We may need to do a relocation against a local symbol, in | |
2107 | which case we have to look up it's dynamic symbol index off | |
2108 | the local symbol hash table. */ | |
a03bd320 DA |
2109 | if (eh->dynindx != -1) |
2110 | dynindx = eh->dynindx; | |
15bda425 JL |
2111 | else |
2112 | dynindx | |
a03bd320 DA |
2113 | = _bfd_elf_link_lookup_local_dynindx (info, hh->owner, |
2114 | hh->sym_indx); | |
15bda425 JL |
2115 | |
2116 | /* The offset of this relocation is the absolute address of the | |
2117 | .opd entry for this symbol. */ | |
a03bd320 | 2118 | rel.r_offset = (hh->opd_offset + sopd->output_offset |
15bda425 JL |
2119 | + sopd->output_section->vma); |
2120 | ||
2121 | /* If H is non-null, then we have an external symbol. | |
2122 | ||
2123 | It is imperative that we use a different dynamic symbol for the | |
2124 | EPLT relocation if the symbol has global scope. | |
2125 | ||
2126 | In the dynamic symbol table, the function symbol will have a value | |
2127 | which is address of the function's .opd entry. | |
2128 | ||
2129 | Thus, we can not use that dynamic symbol for the EPLT relocation | |
2130 | (if we did, the data in the .opd would reference itself rather | |
2131 | than the actual address of the function). Instead we have to use | |
2132 | a new dynamic symbol which has the same value as the original global | |
fe8bc63d | 2133 | function symbol. |
15bda425 JL |
2134 | |
2135 | We prefix the original symbol with a "." and use the new symbol in | |
2136 | the EPLT relocation. This new symbol has already been recorded in | |
2137 | the symbol table, we just have to look it up and use it. | |
2138 | ||
2139 | We do not have such problems with static functions because we do | |
2140 | not make their addresses in the dynamic symbol table point to | |
2141 | the .opd entry. Ultimately this should be safe since a static | |
2142 | function can not be directly referenced outside of its shared | |
2143 | library. | |
2144 | ||
2145 | We do have to play similar games for FPTR relocations in shared | |
2146 | libraries, including those for static symbols. See the FPTR | |
2147 | handling in elf64_hppa_finalize_dynreloc. */ | |
a03bd320 | 2148 | if (eh) |
15bda425 JL |
2149 | { |
2150 | char *new_name; | |
2151 | struct elf_link_hash_entry *nh; | |
2152 | ||
e1fa0163 | 2153 | new_name = concat (".", eh->root.root.string, NULL); |
15bda425 JL |
2154 | |
2155 | nh = elf_link_hash_lookup (elf_hash_table (info), | |
0a1b45a2 | 2156 | new_name, true, true, false); |
68ffbac6 | 2157 | |
15bda425 JL |
2158 | /* All we really want from the new symbol is its dynamic |
2159 | symbol index. */ | |
7fb9f789 NC |
2160 | if (nh) |
2161 | dynindx = nh->dynindx; | |
e1fa0163 | 2162 | free (new_name); |
15bda425 JL |
2163 | } |
2164 | ||
2165 | rel.r_addend = 0; | |
2166 | rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_EPLT); | |
2167 | ||
947216bf AM |
2168 | loc = sopdrel->contents; |
2169 | loc += sopdrel->reloc_count++ * sizeof (Elf64_External_Rela); | |
586338b8 | 2170 | bfd_elf64_swap_reloca_out (info->output_bfd, &rel, loc); |
15bda425 | 2171 | } |
0a1b45a2 | 2172 | return true; |
15bda425 JL |
2173 | } |
2174 | ||
2175 | /* The .dlt section contains addresses for items referenced through the | |
2176 | dlt. Note that we can have a DLTIND relocation for a local symbol, thus | |
2177 | we can not depend on finish_dynamic_symbol to initialize the .dlt. */ | |
2178 | ||
0a1b45a2 | 2179 | static bool |
a03bd320 | 2180 | elf64_hppa_finalize_dlt (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 2181 | { |
a03bd320 | 2182 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
2183 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
2184 | struct elf64_hppa_link_hash_table *hppa_info; | |
2185 | asection *sdlt, *sdltrel; | |
15bda425 | 2186 | |
a03bd320 | 2187 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 | 2188 | if (hppa_info == NULL) |
0a1b45a2 | 2189 | return false; |
15bda425 JL |
2190 | |
2191 | sdlt = hppa_info->dlt_sec; | |
2192 | sdltrel = hppa_info->dlt_rel_sec; | |
2193 | ||
2194 | /* H/DYN_H may refer to a local variable and we know it's | |
2195 | address, so there is no need to create a relocation. Just install | |
2196 | the proper value into the DLT, note this shortcut can not be | |
2197 | skipped when building a shared library. */ | |
0e1862bb | 2198 | if (! bfd_link_pic (info) && hh && hh->want_dlt) |
15bda425 JL |
2199 | { |
2200 | bfd_vma value; | |
2201 | ||
2202 | /* If we had an LTOFF_FPTR style relocation we want the DLT entry | |
fe8bc63d | 2203 | to point to the FPTR entry in the .opd section. |
15bda425 JL |
2204 | |
2205 | We include the OPD's output offset in this computation as | |
2206 | we are referring to an absolute address in the resulting | |
2207 | object file. */ | |
a03bd320 | 2208 | if (hh->want_opd) |
15bda425 | 2209 | { |
a03bd320 | 2210 | value = (hh->opd_offset |
15bda425 JL |
2211 | + hppa_info->opd_sec->output_offset |
2212 | + hppa_info->opd_sec->output_section->vma); | |
2213 | } | |
a03bd320 DA |
2214 | else if ((eh->root.type == bfd_link_hash_defined |
2215 | || eh->root.type == bfd_link_hash_defweak) | |
2216 | && eh->root.u.def.section) | |
15bda425 | 2217 | { |
a03bd320 DA |
2218 | value = eh->root.u.def.value + eh->root.u.def.section->output_offset; |
2219 | if (eh->root.u.def.section->output_section) | |
2220 | value += eh->root.u.def.section->output_section->vma; | |
15bda425 | 2221 | else |
a03bd320 | 2222 | value += eh->root.u.def.section->vma; |
15bda425 | 2223 | } |
3db4b612 JL |
2224 | else |
2225 | /* We have an undefined function reference. */ | |
2226 | value = 0; | |
15bda425 JL |
2227 | |
2228 | /* We do not need to include the output offset of the DLT section | |
2229 | here because we are modifying the in-memory contents. */ | |
a03bd320 | 2230 | bfd_put_64 (sdlt->owner, value, sdlt->contents + hh->dlt_offset); |
15bda425 JL |
2231 | } |
2232 | ||
4cc11e76 | 2233 | /* Create a relocation for the DLT entry associated with this symbol. |
15bda425 | 2234 | When building a shared library the symbol does not have to be dynamic. */ |
a03bd320 | 2235 | if (hh->want_dlt |
0e1862bb | 2236 | && (elf64_hppa_dynamic_symbol_p (eh, info) || bfd_link_pic (info))) |
15bda425 | 2237 | { |
947216bf AM |
2238 | Elf_Internal_Rela rel; |
2239 | bfd_byte *loc; | |
15bda425 JL |
2240 | int dynindx; |
2241 | ||
2242 | /* We may need to do a relocation against a local symbol, in | |
2243 | which case we have to look up it's dynamic symbol index off | |
2244 | the local symbol hash table. */ | |
a03bd320 DA |
2245 | if (eh && eh->dynindx != -1) |
2246 | dynindx = eh->dynindx; | |
15bda425 JL |
2247 | else |
2248 | dynindx | |
a03bd320 DA |
2249 | = _bfd_elf_link_lookup_local_dynindx (info, hh->owner, |
2250 | hh->sym_indx); | |
15bda425 | 2251 | |
15bda425 JL |
2252 | /* Create a dynamic relocation for this entry. Do include the output |
2253 | offset of the DLT entry since we need an absolute address in the | |
2254 | resulting object file. */ | |
a03bd320 | 2255 | rel.r_offset = (hh->dlt_offset + sdlt->output_offset |
15bda425 | 2256 | + sdlt->output_section->vma); |
a03bd320 | 2257 | if (eh && eh->type == STT_FUNC) |
15bda425 JL |
2258 | rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_FPTR64); |
2259 | else | |
2260 | rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_DIR64); | |
2261 | rel.r_addend = 0; | |
2262 | ||
947216bf AM |
2263 | loc = sdltrel->contents; |
2264 | loc += sdltrel->reloc_count++ * sizeof (Elf64_External_Rela); | |
586338b8 | 2265 | bfd_elf64_swap_reloca_out (info->output_bfd, &rel, loc); |
15bda425 | 2266 | } |
0a1b45a2 | 2267 | return true; |
15bda425 JL |
2268 | } |
2269 | ||
2270 | /* Finalize the dynamic relocations. Specifically the FPTR relocations | |
2271 | for dynamic functions used to initialize static data. */ | |
2272 | ||
0a1b45a2 | 2273 | static bool |
a03bd320 | 2274 | elf64_hppa_finalize_dynreloc (struct elf_link_hash_entry *eh, |
813c8a3c | 2275 | void *data) |
15bda425 | 2276 | { |
a03bd320 | 2277 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
2278 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
2279 | struct elf64_hppa_link_hash_table *hppa_info; | |
15bda425 JL |
2280 | int dynamic_symbol; |
2281 | ||
a03bd320 | 2282 | dynamic_symbol = elf64_hppa_dynamic_symbol_p (eh, info); |
15bda425 | 2283 | |
0e1862bb | 2284 | if (!dynamic_symbol && !bfd_link_pic (info)) |
0a1b45a2 | 2285 | return true; |
15bda425 | 2286 | |
a03bd320 | 2287 | if (hh->reloc_entries) |
15bda425 JL |
2288 | { |
2289 | struct elf64_hppa_dyn_reloc_entry *rent; | |
2290 | int dynindx; | |
2291 | ||
a03bd320 | 2292 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 | 2293 | if (hppa_info == NULL) |
0a1b45a2 | 2294 | return false; |
15bda425 JL |
2295 | |
2296 | /* We may need to do a relocation against a local symbol, in | |
2297 | which case we have to look up it's dynamic symbol index off | |
2298 | the local symbol hash table. */ | |
a03bd320 DA |
2299 | if (eh->dynindx != -1) |
2300 | dynindx = eh->dynindx; | |
15bda425 JL |
2301 | else |
2302 | dynindx | |
a03bd320 DA |
2303 | = _bfd_elf_link_lookup_local_dynindx (info, hh->owner, |
2304 | hh->sym_indx); | |
15bda425 | 2305 | |
a03bd320 | 2306 | for (rent = hh->reloc_entries; rent; rent = rent->next) |
15bda425 | 2307 | { |
947216bf AM |
2308 | Elf_Internal_Rela rel; |
2309 | bfd_byte *loc; | |
15bda425 | 2310 | |
d663e1cd JL |
2311 | /* Allocate one iff we are building a shared library, the relocation |
2312 | isn't a R_PARISC_FPTR64, or we don't want an opd entry. */ | |
0e1862bb L |
2313 | if (!bfd_link_pic (info) |
2314 | && rent->type == R_PARISC_FPTR64 && hh->want_opd) | |
d663e1cd | 2315 | continue; |
15bda425 | 2316 | |
fe8bc63d | 2317 | /* Create a dynamic relocation for this entry. |
15bda425 JL |
2318 | |
2319 | We need the output offset for the reloc's section because | |
2320 | we are creating an absolute address in the resulting object | |
2321 | file. */ | |
2322 | rel.r_offset = (rent->offset + rent->sec->output_offset | |
2323 | + rent->sec->output_section->vma); | |
2324 | ||
2325 | /* An FPTR64 relocation implies that we took the address of | |
2326 | a function and that the function has an entry in the .opd | |
2327 | section. We want the FPTR64 relocation to reference the | |
2328 | entry in .opd. | |
2329 | ||
2330 | We could munge the symbol value in the dynamic symbol table | |
2331 | (in fact we already do for functions with global scope) to point | |
2332 | to the .opd entry. Then we could use that dynamic symbol in | |
2333 | this relocation. | |
2334 | ||
2335 | Or we could do something sensible, not munge the symbol's | |
2336 | address and instead just use a different symbol to reference | |
2337 | the .opd entry. At least that seems sensible until you | |
2338 | realize there's no local dynamic symbols we can use for that | |
2339 | purpose. Thus the hair in the check_relocs routine. | |
fe8bc63d | 2340 | |
15bda425 JL |
2341 | We use a section symbol recorded by check_relocs as the |
2342 | base symbol for the relocation. The addend is the difference | |
2343 | between the section symbol and the address of the .opd entry. */ | |
0e1862bb L |
2344 | if (bfd_link_pic (info) |
2345 | && rent->type == R_PARISC_FPTR64 && hh->want_opd) | |
15bda425 JL |
2346 | { |
2347 | bfd_vma value, value2; | |
15bda425 JL |
2348 | |
2349 | /* First compute the address of the opd entry for this symbol. */ | |
a03bd320 | 2350 | value = (hh->opd_offset |
15bda425 JL |
2351 | + hppa_info->opd_sec->output_section->vma |
2352 | + hppa_info->opd_sec->output_offset); | |
2353 | ||
2354 | /* Compute the value of the start of the section with | |
2355 | the relocation. */ | |
2356 | value2 = (rent->sec->output_section->vma | |
2357 | + rent->sec->output_offset); | |
2358 | ||
2359 | /* Compute the difference between the start of the section | |
2360 | with the relocation and the opd entry. */ | |
2361 | value -= value2; | |
fe8bc63d | 2362 | |
15bda425 JL |
2363 | /* The result becomes the addend of the relocation. */ |
2364 | rel.r_addend = value; | |
2365 | ||
2366 | /* The section symbol becomes the symbol for the dynamic | |
2367 | relocation. */ | |
2368 | dynindx | |
2369 | = _bfd_elf_link_lookup_local_dynindx (info, | |
2370 | rent->sec->owner, | |
2371 | rent->sec_symndx); | |
2372 | } | |
2373 | else | |
2374 | rel.r_addend = rent->addend; | |
2375 | ||
2376 | rel.r_info = ELF64_R_INFO (dynindx, rent->type); | |
2377 | ||
947216bf AM |
2378 | loc = hppa_info->other_rel_sec->contents; |
2379 | loc += (hppa_info->other_rel_sec->reloc_count++ | |
2380 | * sizeof (Elf64_External_Rela)); | |
586338b8 | 2381 | bfd_elf64_swap_reloca_out (info->output_bfd, &rel, loc); |
15bda425 JL |
2382 | } |
2383 | } | |
2384 | ||
0a1b45a2 | 2385 | return true; |
15bda425 JL |
2386 | } |
2387 | ||
5ac81c74 JL |
2388 | /* Used to decide how to sort relocs in an optimal manner for the |
2389 | dynamic linker, before writing them out. */ | |
2390 | ||
2391 | static enum elf_reloc_type_class | |
7e612e98 AM |
2392 | elf64_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
2393 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
2394 | const Elf_Internal_Rela *rela) | |
5ac81c74 | 2395 | { |
cf35638d | 2396 | if (ELF64_R_SYM (rela->r_info) == STN_UNDEF) |
5ac81c74 JL |
2397 | return reloc_class_relative; |
2398 | ||
2399 | switch ((int) ELF64_R_TYPE (rela->r_info)) | |
2400 | { | |
2401 | case R_PARISC_IPLT: | |
2402 | return reloc_class_plt; | |
2403 | case R_PARISC_COPY: | |
2404 | return reloc_class_copy; | |
2405 | default: | |
2406 | return reloc_class_normal; | |
2407 | } | |
2408 | } | |
2409 | ||
15bda425 JL |
2410 | /* Finish up the dynamic sections. */ |
2411 | ||
0a1b45a2 | 2412 | static bool |
813c8a3c DA |
2413 | elf64_hppa_finish_dynamic_sections (bfd *output_bfd, |
2414 | struct bfd_link_info *info) | |
15bda425 JL |
2415 | { |
2416 | bfd *dynobj; | |
2417 | asection *sdyn; | |
2418 | struct elf64_hppa_link_hash_table *hppa_info; | |
2419 | ||
a03bd320 | 2420 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 | 2421 | if (hppa_info == NULL) |
0a1b45a2 | 2422 | return false; |
15bda425 JL |
2423 | |
2424 | /* Finalize the contents of the .opd section. */ | |
a03bd320 DA |
2425 | elf_link_hash_traverse (elf_hash_table (info), |
2426 | elf64_hppa_finalize_opd, | |
2427 | info); | |
15bda425 | 2428 | |
a03bd320 DA |
2429 | elf_link_hash_traverse (elf_hash_table (info), |
2430 | elf64_hppa_finalize_dynreloc, | |
2431 | info); | |
15bda425 JL |
2432 | |
2433 | /* Finalize the contents of the .dlt section. */ | |
2434 | dynobj = elf_hash_table (info)->dynobj; | |
2435 | /* Finalize the contents of the .dlt section. */ | |
a03bd320 DA |
2436 | elf_link_hash_traverse (elf_hash_table (info), |
2437 | elf64_hppa_finalize_dlt, | |
2438 | info); | |
15bda425 | 2439 | |
3d4d4302 | 2440 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
15bda425 JL |
2441 | |
2442 | if (elf_hash_table (info)->dynamic_sections_created) | |
2443 | { | |
2444 | Elf64_External_Dyn *dyncon, *dynconend; | |
15bda425 JL |
2445 | |
2446 | BFD_ASSERT (sdyn != NULL); | |
2447 | ||
2448 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
eea6121a | 2449 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
15bda425 JL |
2450 | for (; dyncon < dynconend; dyncon++) |
2451 | { | |
2452 | Elf_Internal_Dyn dyn; | |
2453 | asection *s; | |
2454 | ||
2455 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
2456 | ||
2457 | switch (dyn.d_tag) | |
2458 | { | |
2459 | default: | |
2460 | break; | |
2461 | ||
2462 | case DT_HP_LOAD_MAP: | |
2463 | /* Compute the absolute address of 16byte scratchpad area | |
2464 | for the dynamic linker. | |
2465 | ||
2466 | By convention the linker script will allocate the scratchpad | |
2467 | area at the start of the .data section. So all we have to | |
2468 | to is find the start of the .data section. */ | |
2469 | s = bfd_get_section_by_name (output_bfd, ".data"); | |
a505d7ac | 2470 | if (!s) |
0a1b45a2 | 2471 | return false; |
15bda425 JL |
2472 | dyn.d_un.d_ptr = s->vma; |
2473 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2474 | break; | |
2475 | ||
2476 | case DT_PLTGOT: | |
2477 | /* HP's use PLTGOT to set the GOT register. */ | |
2478 | dyn.d_un.d_ptr = _bfd_get_gp_value (output_bfd); | |
2479 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2480 | break; | |
2481 | ||
2482 | case DT_JMPREL: | |
9b8a8575 | 2483 | s = hppa_info->root.srelplt; |
15bda425 JL |
2484 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
2485 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2486 | break; | |
2487 | ||
2488 | case DT_PLTRELSZ: | |
9b8a8575 | 2489 | s = hppa_info->root.srelplt; |
eea6121a | 2490 | dyn.d_un.d_val = s->size; |
15bda425 JL |
2491 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
2492 | break; | |
2493 | ||
2494 | case DT_RELA: | |
2495 | s = hppa_info->other_rel_sec; | |
eea6121a | 2496 | if (! s || ! s->size) |
15bda425 | 2497 | s = hppa_info->dlt_rel_sec; |
eea6121a | 2498 | if (! s || ! s->size) |
5ac81c74 | 2499 | s = hppa_info->opd_rel_sec; |
15bda425 JL |
2500 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
2501 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2502 | break; | |
2503 | ||
2504 | case DT_RELASZ: | |
2505 | s = hppa_info->other_rel_sec; | |
eea6121a | 2506 | dyn.d_un.d_val = s->size; |
15bda425 | 2507 | s = hppa_info->dlt_rel_sec; |
eea6121a | 2508 | dyn.d_un.d_val += s->size; |
15bda425 | 2509 | s = hppa_info->opd_rel_sec; |
eea6121a | 2510 | dyn.d_un.d_val += s->size; |
15bda425 JL |
2511 | /* There is some question about whether or not the size of |
2512 | the PLT relocs should be included here. HP's tools do | |
2513 | it, so we'll emulate them. */ | |
9b8a8575 | 2514 | s = hppa_info->root.srelplt; |
eea6121a | 2515 | dyn.d_un.d_val += s->size; |
15bda425 JL |
2516 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
2517 | break; | |
2518 | ||
2519 | } | |
2520 | } | |
2521 | } | |
2522 | ||
0a1b45a2 | 2523 | return true; |
15bda425 JL |
2524 | } |
2525 | ||
235ecfbc NC |
2526 | /* Support for core dump NOTE sections. */ |
2527 | ||
0a1b45a2 | 2528 | static bool |
235ecfbc NC |
2529 | elf64_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
2530 | { | |
2531 | int offset; | |
2532 | size_t size; | |
2533 | ||
2534 | switch (note->descsz) | |
2535 | { | |
2536 | default: | |
0a1b45a2 | 2537 | return false; |
235ecfbc NC |
2538 | |
2539 | case 760: /* Linux/hppa */ | |
2540 | /* pr_cursig */ | |
228e534f | 2541 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
235ecfbc NC |
2542 | |
2543 | /* pr_pid */ | |
228e534f | 2544 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
235ecfbc NC |
2545 | |
2546 | /* pr_reg */ | |
2547 | offset = 112; | |
2548 | size = 640; | |
2549 | ||
2550 | break; | |
2551 | } | |
2552 | ||
2553 | /* Make a ".reg/999" section. */ | |
2554 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
2555 | size, note->descpos + offset); | |
2556 | } | |
2557 | ||
0a1b45a2 | 2558 | static bool |
235ecfbc NC |
2559 | elf64_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
2560 | { | |
2561 | char * command; | |
2562 | int n; | |
2563 | ||
2564 | switch (note->descsz) | |
2565 | { | |
2566 | default: | |
0a1b45a2 | 2567 | return false; |
235ecfbc NC |
2568 | |
2569 | case 136: /* Linux/hppa elf_prpsinfo. */ | |
228e534f | 2570 | elf_tdata (abfd)->core->program |
235ecfbc | 2571 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
228e534f | 2572 | elf_tdata (abfd)->core->command |
235ecfbc NC |
2573 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
2574 | } | |
2575 | ||
2576 | /* Note that for some reason, a spurious space is tacked | |
2577 | onto the end of the args in some (at least one anyway) | |
2578 | implementations, so strip it off if it exists. */ | |
228e534f | 2579 | command = elf_tdata (abfd)->core->command; |
235ecfbc NC |
2580 | n = strlen (command); |
2581 | ||
2582 | if (0 < n && command[n - 1] == ' ') | |
2583 | command[n - 1] = '\0'; | |
2584 | ||
0a1b45a2 | 2585 | return true; |
235ecfbc NC |
2586 | } |
2587 | ||
15bda425 JL |
2588 | /* Return the number of additional phdrs we will need. |
2589 | ||
2590 | The generic ELF code only creates PT_PHDRs for executables. The HP | |
fe8bc63d | 2591 | dynamic linker requires PT_PHDRs for dynamic libraries too. |
15bda425 JL |
2592 | |
2593 | This routine indicates that the backend needs one additional program | |
2594 | header for that case. | |
2595 | ||
2596 | Note we do not have access to the link info structure here, so we have | |
2597 | to guess whether or not we are building a shared library based on the | |
2598 | existence of a .interp section. */ | |
2599 | ||
2600 | static int | |
a6b96beb | 2601 | elf64_hppa_additional_program_headers (bfd *abfd, |
813c8a3c | 2602 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
15bda425 JL |
2603 | { |
2604 | asection *s; | |
2605 | ||
2606 | /* If we are creating a shared library, then we have to create a | |
2607 | PT_PHDR segment. HP's dynamic linker chokes without it. */ | |
2608 | s = bfd_get_section_by_name (abfd, ".interp"); | |
2609 | if (! s) | |
2610 | return 1; | |
2611 | return 0; | |
2612 | } | |
2613 | ||
0a1b45a2 | 2614 | static bool |
1a9ccd70 NC |
2615 | elf64_hppa_allow_non_load_phdr (bfd *abfd ATTRIBUTE_UNUSED, |
2616 | const Elf_Internal_Phdr *phdr ATTRIBUTE_UNUSED, | |
2617 | unsigned int count ATTRIBUTE_UNUSED) | |
2618 | { | |
0a1b45a2 | 2619 | return true; |
1a9ccd70 NC |
2620 | } |
2621 | ||
15bda425 JL |
2622 | /* Allocate and initialize any program headers required by this |
2623 | specific backend. | |
2624 | ||
2625 | The generic ELF code only creates PT_PHDRs for executables. The HP | |
fe8bc63d | 2626 | dynamic linker requires PT_PHDRs for dynamic libraries too. |
15bda425 JL |
2627 | |
2628 | This allocates the PT_PHDR and initializes it in a manner suitable | |
fe8bc63d | 2629 | for the HP linker. |
15bda425 JL |
2630 | |
2631 | Note we do not have access to the link info structure here, so we have | |
2632 | to guess whether or not we are building a shared library based on the | |
2633 | existence of a .interp section. */ | |
2634 | ||
0a1b45a2 | 2635 | static bool |
22b05d33 | 2636 | elf64_hppa_modify_segment_map (bfd *abfd, struct bfd_link_info *info) |
15bda425 | 2637 | { |
edd21aca | 2638 | struct elf_segment_map *m; |
15bda425 | 2639 | |
22b05d33 AM |
2640 | m = elf_seg_map (abfd); |
2641 | if (info != NULL && !info->user_phdrs && m != NULL && m->p_type != PT_PHDR) | |
15bda425 | 2642 | { |
22b05d33 AM |
2643 | m = ((struct elf_segment_map *) |
2644 | bfd_zalloc (abfd, (bfd_size_type) sizeof *m)); | |
15bda425 | 2645 | if (m == NULL) |
0a1b45a2 | 2646 | return false; |
15bda425 | 2647 | |
22b05d33 AM |
2648 | m->p_type = PT_PHDR; |
2649 | m->p_flags = PF_R | PF_X; | |
2650 | m->p_flags_valid = 1; | |
2651 | m->p_paddr_valid = 1; | |
2652 | m->includes_phdrs = 1; | |
15bda425 | 2653 | |
22b05d33 AM |
2654 | m->next = elf_seg_map (abfd); |
2655 | elf_seg_map (abfd) = m; | |
15bda425 JL |
2656 | } |
2657 | ||
22b05d33 | 2658 | for (m = elf_seg_map (abfd) ; m != NULL; m = m->next) |
15bda425 JL |
2659 | if (m->p_type == PT_LOAD) |
2660 | { | |
0ba2a60e | 2661 | unsigned int i; |
15bda425 JL |
2662 | |
2663 | for (i = 0; i < m->count; i++) | |
2664 | { | |
2665 | /* The code "hint" is not really a hint. It is a requirement | |
2666 | for certain versions of the HP dynamic linker. Worse yet, | |
2667 | it must be set even if the shared library does not have | |
2668 | any code in its "text" segment (thus the check for .hash | |
2669 | to catch this situation). */ | |
2670 | if (m->sections[i]->flags & SEC_CODE | |
2671 | || (strcmp (m->sections[i]->name, ".hash") == 0)) | |
2672 | m->p_flags |= (PF_X | PF_HP_CODE); | |
2673 | } | |
2674 | } | |
2675 | ||
0a1b45a2 | 2676 | return true; |
15bda425 JL |
2677 | } |
2678 | ||
3fab46d0 AM |
2679 | /* Called when writing out an object file to decide the type of a |
2680 | symbol. */ | |
2681 | static int | |
813c8a3c DA |
2682 | elf64_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, |
2683 | int type) | |
3fab46d0 AM |
2684 | { |
2685 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
2686 | return STT_PARISC_MILLI; | |
2687 | else | |
2688 | return type; | |
2689 | } | |
2690 | ||
d97a8924 | 2691 | /* Support HP specific sections for core files. */ |
91d6fa6a | 2692 | |
0a1b45a2 | 2693 | static bool |
91d6fa6a | 2694 | elf64_hppa_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int sec_index, |
d97a8924 DA |
2695 | const char *typename) |
2696 | { | |
927e625f MK |
2697 | if (hdr->p_type == PT_HP_CORE_KERNEL) |
2698 | { | |
2699 | asection *sect; | |
2700 | ||
91d6fa6a | 2701 | if (!_bfd_elf_make_section_from_phdr (abfd, hdr, sec_index, typename)) |
0a1b45a2 | 2702 | return false; |
927e625f MK |
2703 | |
2704 | sect = bfd_make_section_anyway (abfd, ".kernel"); | |
2705 | if (sect == NULL) | |
0a1b45a2 | 2706 | return false; |
927e625f MK |
2707 | sect->size = hdr->p_filesz; |
2708 | sect->filepos = hdr->p_offset; | |
2709 | sect->flags = SEC_HAS_CONTENTS | SEC_READONLY; | |
0a1b45a2 | 2710 | return true; |
927e625f MK |
2711 | } |
2712 | ||
d97a8924 DA |
2713 | if (hdr->p_type == PT_HP_CORE_PROC) |
2714 | { | |
2715 | int sig; | |
2716 | ||
2717 | if (bfd_seek (abfd, hdr->p_offset, SEEK_SET) != 0) | |
0a1b45a2 | 2718 | return false; |
226f9f4f | 2719 | if (bfd_read (&sig, 4, abfd) != 4) |
0a1b45a2 | 2720 | return false; |
d97a8924 | 2721 | |
228e534f | 2722 | elf_tdata (abfd)->core->signal = sig; |
d97a8924 | 2723 | |
91d6fa6a | 2724 | if (!_bfd_elf_make_section_from_phdr (abfd, hdr, sec_index, typename)) |
0a1b45a2 | 2725 | return false; |
927e625f MK |
2726 | |
2727 | /* GDB uses the ".reg" section to read register contents. */ | |
2728 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", hdr->p_filesz, | |
2729 | hdr->p_offset); | |
d97a8924 DA |
2730 | } |
2731 | ||
2732 | if (hdr->p_type == PT_HP_CORE_LOADABLE | |
2733 | || hdr->p_type == PT_HP_CORE_STACK | |
2734 | || hdr->p_type == PT_HP_CORE_MMF) | |
2735 | hdr->p_type = PT_LOAD; | |
2736 | ||
91d6fa6a | 2737 | return _bfd_elf_make_section_from_phdr (abfd, hdr, sec_index, typename); |
d97a8924 DA |
2738 | } |
2739 | ||
5887528b DA |
2740 | /* Hook called by the linker routine which adds symbols from an object |
2741 | file. HP's libraries define symbols with HP specific section | |
2742 | indices, which we have to handle. */ | |
2743 | ||
0a1b45a2 | 2744 | static bool |
5887528b DA |
2745 | elf_hppa_add_symbol_hook (bfd *abfd, |
2746 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
2747 | Elf_Internal_Sym *sym, | |
2748 | const char **namep ATTRIBUTE_UNUSED, | |
2749 | flagword *flagsp ATTRIBUTE_UNUSED, | |
2750 | asection **secp, | |
2751 | bfd_vma *valp) | |
2752 | { | |
91d6fa6a | 2753 | unsigned int sec_index = sym->st_shndx; |
5887528b | 2754 | |
91d6fa6a | 2755 | switch (sec_index) |
5887528b DA |
2756 | { |
2757 | case SHN_PARISC_ANSI_COMMON: | |
2758 | *secp = bfd_make_section_old_way (abfd, ".PARISC.ansi.common"); | |
2759 | (*secp)->flags |= SEC_IS_COMMON; | |
2760 | *valp = sym->st_size; | |
2761 | break; | |
2762 | ||
2763 | case SHN_PARISC_HUGE_COMMON: | |
2764 | *secp = bfd_make_section_old_way (abfd, ".PARISC.huge.common"); | |
2765 | (*secp)->flags |= SEC_IS_COMMON; | |
2766 | *valp = sym->st_size; | |
2767 | break; | |
2768 | } | |
2769 | ||
0a1b45a2 | 2770 | return true; |
5887528b DA |
2771 | } |
2772 | ||
0a1b45a2 | 2773 | static bool |
5887528b DA |
2774 | elf_hppa_unmark_useless_dynamic_symbols (struct elf_link_hash_entry *h, |
2775 | void *data) | |
2776 | { | |
2777 | struct bfd_link_info *info = data; | |
2778 | ||
5887528b DA |
2779 | /* If we are not creating a shared library, and this symbol is |
2780 | referenced by a shared library but is not defined anywhere, then | |
2781 | the generic code will warn that it is undefined. | |
2782 | ||
2783 | This behavior is undesirable on HPs since the standard shared | |
2784 | libraries contain references to undefined symbols. | |
2785 | ||
2786 | So we twiddle the flags associated with such symbols so that they | |
2787 | will not trigger the warning. ?!? FIXME. This is horribly fragile. | |
2788 | ||
2789 | Ultimately we should have better controls over the generic ELF BFD | |
2790 | linker code. */ | |
0e1862bb | 2791 | if (! bfd_link_relocatable (info) |
5887528b DA |
2792 | && info->unresolved_syms_in_shared_libs != RM_IGNORE |
2793 | && h->root.type == bfd_link_hash_undefined | |
2794 | && h->ref_dynamic | |
2795 | && !h->ref_regular) | |
2796 | { | |
2797 | h->ref_dynamic = 0; | |
2798 | h->pointer_equality_needed = 1; | |
2799 | } | |
2800 | ||
0a1b45a2 | 2801 | return true; |
5887528b DA |
2802 | } |
2803 | ||
0a1b45a2 | 2804 | static bool |
5887528b DA |
2805 | elf_hppa_remark_useless_dynamic_symbols (struct elf_link_hash_entry *h, |
2806 | void *data) | |
2807 | { | |
2808 | struct bfd_link_info *info = data; | |
2809 | ||
5887528b DA |
2810 | /* If we are not creating a shared library, and this symbol is |
2811 | referenced by a shared library but is not defined anywhere, then | |
2812 | the generic code will warn that it is undefined. | |
2813 | ||
2814 | This behavior is undesirable on HPs since the standard shared | |
2815 | libraries contain references to undefined symbols. | |
2816 | ||
2817 | So we twiddle the flags associated with such symbols so that they | |
2818 | will not trigger the warning. ?!? FIXME. This is horribly fragile. | |
2819 | ||
2820 | Ultimately we should have better controls over the generic ELF BFD | |
2821 | linker code. */ | |
0e1862bb | 2822 | if (! bfd_link_relocatable (info) |
5887528b DA |
2823 | && info->unresolved_syms_in_shared_libs != RM_IGNORE |
2824 | && h->root.type == bfd_link_hash_undefined | |
2825 | && !h->ref_dynamic | |
2826 | && !h->ref_regular | |
2827 | && h->pointer_equality_needed) | |
2828 | { | |
2829 | h->ref_dynamic = 1; | |
2830 | h->pointer_equality_needed = 0; | |
2831 | } | |
2832 | ||
0a1b45a2 | 2833 | return true; |
5887528b DA |
2834 | } |
2835 | ||
0a1b45a2 | 2836 | static bool |
5887528b DA |
2837 | elf_hppa_is_dynamic_loader_symbol (const char *name) |
2838 | { | |
2839 | return (! strcmp (name, "__CPU_REVISION") | |
2840 | || ! strcmp (name, "__CPU_KEYBITS_1") | |
2841 | || ! strcmp (name, "__SYSTEM_ID_D") | |
2842 | || ! strcmp (name, "__FPU_MODEL") | |
2843 | || ! strcmp (name, "__FPU_REVISION") | |
2844 | || ! strcmp (name, "__ARGC") | |
2845 | || ! strcmp (name, "__ARGV") | |
2846 | || ! strcmp (name, "__ENVP") | |
2847 | || ! strcmp (name, "__TLS_SIZE_D") | |
2848 | || ! strcmp (name, "__LOAD_INFO") | |
2849 | || ! strcmp (name, "__systab")); | |
2850 | } | |
2851 | ||
2852 | /* Record the lowest address for the data and text segments. */ | |
2853 | static void | |
2854 | elf_hppa_record_segment_addrs (bfd *abfd, | |
2855 | asection *section, | |
2856 | void *data) | |
2857 | { | |
2858 | struct elf64_hppa_link_hash_table *hppa_info = data; | |
2859 | ||
2860 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
2861 | { | |
2862 | bfd_vma value; | |
2863 | Elf_Internal_Phdr *p; | |
2864 | ||
2865 | p = _bfd_elf_find_segment_containing_section (abfd, section->output_section); | |
2866 | BFD_ASSERT (p != NULL); | |
2867 | value = p->p_vaddr; | |
2868 | ||
2869 | if (section->flags & SEC_READONLY) | |
2870 | { | |
2871 | if (value < hppa_info->text_segment_base) | |
2872 | hppa_info->text_segment_base = value; | |
2873 | } | |
2874 | else | |
2875 | { | |
2876 | if (value < hppa_info->data_segment_base) | |
2877 | hppa_info->data_segment_base = value; | |
2878 | } | |
2879 | } | |
2880 | } | |
2881 | ||
2882 | /* Called after we have seen all the input files/sections, but before | |
2883 | final symbol resolution and section placement has been determined. | |
2884 | ||
2885 | We use this hook to (possibly) provide a value for __gp, then we | |
2886 | fall back to the generic ELF final link routine. */ | |
2887 | ||
0a1b45a2 | 2888 | static bool |
5887528b DA |
2889 | elf_hppa_final_link (bfd *abfd, struct bfd_link_info *info) |
2890 | { | |
6d4b2867 | 2891 | struct stat buf; |
5887528b DA |
2892 | struct elf64_hppa_link_hash_table *hppa_info = hppa_link_hash_table (info); |
2893 | ||
4dfe6ac6 | 2894 | if (hppa_info == NULL) |
0a1b45a2 | 2895 | return false; |
4dfe6ac6 | 2896 | |
0e1862bb | 2897 | if (! bfd_link_relocatable (info)) |
5887528b DA |
2898 | { |
2899 | struct elf_link_hash_entry *gp; | |
2900 | bfd_vma gp_val; | |
2901 | ||
2902 | /* The linker script defines a value for __gp iff it was referenced | |
2903 | by one of the objects being linked. First try to find the symbol | |
2904 | in the hash table. If that fails, just compute the value __gp | |
2905 | should have had. */ | |
0a1b45a2 AM |
2906 | gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", false, |
2907 | false, false); | |
5887528b DA |
2908 | |
2909 | if (gp) | |
2910 | { | |
2911 | ||
2912 | /* Adjust the value of __gp as we may want to slide it into the | |
2913 | .plt section so that the stubs can access PLT entries without | |
2914 | using an addil sequence. */ | |
2915 | gp->root.u.def.value += hppa_info->gp_offset; | |
2916 | ||
2917 | gp_val = (gp->root.u.def.section->output_section->vma | |
2918 | + gp->root.u.def.section->output_offset | |
2919 | + gp->root.u.def.value); | |
2920 | } | |
2921 | else | |
2922 | { | |
2923 | asection *sec; | |
2924 | ||
2925 | /* First look for a .plt section. If found, then __gp is the | |
2926 | address of the .plt + gp_offset. | |
2927 | ||
2928 | If no .plt is found, then look for .dlt, .opd and .data (in | |
2929 | that order) and set __gp to the base address of whichever | |
2930 | section is found first. */ | |
2931 | ||
9b8a8575 | 2932 | sec = hppa_info->root.splt; |
5887528b DA |
2933 | if (sec && ! (sec->flags & SEC_EXCLUDE)) |
2934 | gp_val = (sec->output_offset | |
2935 | + sec->output_section->vma | |
2936 | + hppa_info->gp_offset); | |
2937 | else | |
2938 | { | |
2939 | sec = hppa_info->dlt_sec; | |
2940 | if (!sec || (sec->flags & SEC_EXCLUDE)) | |
2941 | sec = hppa_info->opd_sec; | |
2942 | if (!sec || (sec->flags & SEC_EXCLUDE)) | |
2943 | sec = bfd_get_section_by_name (abfd, ".data"); | |
2944 | if (!sec || (sec->flags & SEC_EXCLUDE)) | |
2945 | gp_val = 0; | |
2946 | else | |
2947 | gp_val = sec->output_offset + sec->output_section->vma; | |
2948 | } | |
2949 | } | |
2950 | ||
2951 | /* Install whatever value we found/computed for __gp. */ | |
2952 | _bfd_set_gp_value (abfd, gp_val); | |
2953 | } | |
2954 | ||
2955 | /* We need to know the base of the text and data segments so that we | |
2956 | can perform SEGREL relocations. We will record the base addresses | |
2957 | when we encounter the first SEGREL relocation. */ | |
2958 | hppa_info->text_segment_base = (bfd_vma)-1; | |
2959 | hppa_info->data_segment_base = (bfd_vma)-1; | |
2960 | ||
2961 | /* HP's shared libraries have references to symbols that are not | |
2962 | defined anywhere. The generic ELF BFD linker code will complain | |
2963 | about such symbols. | |
2964 | ||
2965 | So we detect the losing case and arrange for the flags on the symbol | |
2966 | to indicate that it was never referenced. This keeps the generic | |
2967 | ELF BFD link code happy and appears to not create any secondary | |
2968 | problems. Ultimately we need a way to control the behavior of the | |
2969 | generic ELF BFD link code better. */ | |
2970 | elf_link_hash_traverse (elf_hash_table (info), | |
2971 | elf_hppa_unmark_useless_dynamic_symbols, | |
2972 | info); | |
2973 | ||
2974 | /* Invoke the regular ELF backend linker to do all the work. */ | |
6d4b2867 | 2975 | if (!bfd_elf_final_link (abfd, info)) |
0a1b45a2 | 2976 | return false; |
5887528b DA |
2977 | |
2978 | elf_link_hash_traverse (elf_hash_table (info), | |
2979 | elf_hppa_remark_useless_dynamic_symbols, | |
2980 | info); | |
2981 | ||
2982 | /* If we're producing a final executable, sort the contents of the | |
2983 | unwind section. */ | |
6d4b2867 | 2984 | if (bfd_link_relocatable (info)) |
0a1b45a2 | 2985 | return true; |
6d4b2867 JDA |
2986 | |
2987 | /* Do not attempt to sort non-regular files. This is here | |
2988 | especially for configure scripts and kernel builds which run | |
2989 | tests with "ld [...] -o /dev/null". */ | |
765cf5f6 | 2990 | if (stat (bfd_get_filename (abfd), &buf) != 0 |
6d4b2867 | 2991 | || !S_ISREG(buf.st_mode)) |
0a1b45a2 | 2992 | return true; |
5887528b | 2993 | |
6d4b2867 | 2994 | return elf_hppa_sort_unwind (abfd); |
5887528b DA |
2995 | } |
2996 | ||
2997 | /* Relocate the given INSN. VALUE should be the actual value we want | |
2998 | to insert into the instruction, ie by this point we should not be | |
2999 | concerned with computing an offset relative to the DLT, PC, etc. | |
3000 | Instead this routine is meant to handle the bit manipulations needed | |
3001 | to insert the relocation into the given instruction. */ | |
3002 | ||
3003 | static int | |
3004 | elf_hppa_relocate_insn (int insn, int sym_value, unsigned int r_type) | |
3005 | { | |
3006 | switch (r_type) | |
3007 | { | |
3008 | /* This is any 22 bit branch. In PA2.0 syntax it corresponds to | |
3009 | the "B" instruction. */ | |
3010 | case R_PARISC_PCREL22F: | |
3011 | case R_PARISC_PCREL22C: | |
3012 | return (insn & ~0x3ff1ffd) | re_assemble_22 (sym_value); | |
3013 | ||
3014 | /* This is any 12 bit branch. */ | |
3015 | case R_PARISC_PCREL12F: | |
3016 | return (insn & ~0x1ffd) | re_assemble_12 (sym_value); | |
3017 | ||
3018 | /* This is any 17 bit branch. In PA2.0 syntax it also corresponds | |
3019 | to the "B" instruction as well as BE. */ | |
3020 | case R_PARISC_PCREL17F: | |
3021 | case R_PARISC_DIR17F: | |
3022 | case R_PARISC_DIR17R: | |
3023 | case R_PARISC_PCREL17C: | |
3024 | case R_PARISC_PCREL17R: | |
3025 | return (insn & ~0x1f1ffd) | re_assemble_17 (sym_value); | |
3026 | ||
3027 | /* ADDIL or LDIL instructions. */ | |
3028 | case R_PARISC_DLTREL21L: | |
3029 | case R_PARISC_DLTIND21L: | |
3030 | case R_PARISC_LTOFF_FPTR21L: | |
3031 | case R_PARISC_PCREL21L: | |
3032 | case R_PARISC_LTOFF_TP21L: | |
3033 | case R_PARISC_DPREL21L: | |
3034 | case R_PARISC_PLTOFF21L: | |
3035 | case R_PARISC_DIR21L: | |
3036 | return (insn & ~0x1fffff) | re_assemble_21 (sym_value); | |
3037 | ||
3038 | /* LDO and integer loads/stores with 14 bit displacements. */ | |
3039 | case R_PARISC_DLTREL14R: | |
3040 | case R_PARISC_DLTREL14F: | |
3041 | case R_PARISC_DLTIND14R: | |
3042 | case R_PARISC_DLTIND14F: | |
3043 | case R_PARISC_LTOFF_FPTR14R: | |
3044 | case R_PARISC_PCREL14R: | |
3045 | case R_PARISC_PCREL14F: | |
3046 | case R_PARISC_LTOFF_TP14R: | |
3047 | case R_PARISC_LTOFF_TP14F: | |
3048 | case R_PARISC_DPREL14R: | |
3049 | case R_PARISC_DPREL14F: | |
3050 | case R_PARISC_PLTOFF14R: | |
3051 | case R_PARISC_PLTOFF14F: | |
3052 | case R_PARISC_DIR14R: | |
3053 | case R_PARISC_DIR14F: | |
3054 | return (insn & ~0x3fff) | low_sign_unext (sym_value, 14); | |
3055 | ||
3056 | /* PA2.0W LDO and integer loads/stores with 16 bit displacements. */ | |
3057 | case R_PARISC_LTOFF_FPTR16F: | |
3058 | case R_PARISC_PCREL16F: | |
3059 | case R_PARISC_LTOFF_TP16F: | |
3060 | case R_PARISC_GPREL16F: | |
3061 | case R_PARISC_PLTOFF16F: | |
3062 | case R_PARISC_DIR16F: | |
3063 | case R_PARISC_LTOFF16F: | |
3064 | return (insn & ~0xffff) | re_assemble_16 (sym_value); | |
3065 | ||
3066 | /* Doubleword loads and stores with a 14 bit displacement. */ | |
3067 | case R_PARISC_DLTREL14DR: | |
3068 | case R_PARISC_DLTIND14DR: | |
3069 | case R_PARISC_LTOFF_FPTR14DR: | |
3070 | case R_PARISC_LTOFF_FPTR16DF: | |
3071 | case R_PARISC_PCREL14DR: | |
3072 | case R_PARISC_PCREL16DF: | |
3073 | case R_PARISC_LTOFF_TP14DR: | |
3074 | case R_PARISC_LTOFF_TP16DF: | |
3075 | case R_PARISC_DPREL14DR: | |
3076 | case R_PARISC_GPREL16DF: | |
3077 | case R_PARISC_PLTOFF14DR: | |
3078 | case R_PARISC_PLTOFF16DF: | |
3079 | case R_PARISC_DIR14DR: | |
3080 | case R_PARISC_DIR16DF: | |
3081 | case R_PARISC_LTOFF16DF: | |
3082 | return (insn & ~0x3ff1) | (((sym_value & 0x2000) >> 13) | |
3083 | | ((sym_value & 0x1ff8) << 1)); | |
3084 | ||
3085 | /* Floating point single word load/store instructions. */ | |
3086 | case R_PARISC_DLTREL14WR: | |
3087 | case R_PARISC_DLTIND14WR: | |
3088 | case R_PARISC_LTOFF_FPTR14WR: | |
3089 | case R_PARISC_LTOFF_FPTR16WF: | |
3090 | case R_PARISC_PCREL14WR: | |
3091 | case R_PARISC_PCREL16WF: | |
3092 | case R_PARISC_LTOFF_TP14WR: | |
3093 | case R_PARISC_LTOFF_TP16WF: | |
3094 | case R_PARISC_DPREL14WR: | |
3095 | case R_PARISC_GPREL16WF: | |
3096 | case R_PARISC_PLTOFF14WR: | |
3097 | case R_PARISC_PLTOFF16WF: | |
3098 | case R_PARISC_DIR16WF: | |
3099 | case R_PARISC_DIR14WR: | |
3100 | case R_PARISC_LTOFF16WF: | |
3101 | return (insn & ~0x3ff9) | (((sym_value & 0x2000) >> 13) | |
3102 | | ((sym_value & 0x1ffc) << 1)); | |
3103 | ||
3104 | default: | |
3105 | return insn; | |
3106 | } | |
3107 | } | |
3108 | ||
3109 | /* Compute the value for a relocation (REL) during a final link stage, | |
3110 | then insert the value into the proper location in CONTENTS. | |
3111 | ||
3112 | VALUE is a tentative value for the relocation and may be overridden | |
3113 | and modified here based on the specific relocation to be performed. | |
3114 | ||
3115 | For example we do conversions for PC-relative branches in this routine | |
3116 | or redirection of calls to external routines to stubs. | |
3117 | ||
3118 | The work of actually applying the relocation is left to a helper | |
3119 | routine in an attempt to reduce the complexity and size of this | |
3120 | function. */ | |
3121 | ||
3122 | static bfd_reloc_status_type | |
3123 | elf_hppa_final_link_relocate (Elf_Internal_Rela *rel, | |
3124 | bfd *input_bfd, | |
3125 | bfd *output_bfd, | |
3126 | asection *input_section, | |
3127 | bfd_byte *contents, | |
3128 | bfd_vma value, | |
3129 | struct bfd_link_info *info, | |
3130 | asection *sym_sec, | |
3131 | struct elf_link_hash_entry *eh) | |
3132 | { | |
3133 | struct elf64_hppa_link_hash_table *hppa_info = hppa_link_hash_table (info); | |
3134 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); | |
3135 | bfd_vma *local_offsets; | |
3136 | Elf_Internal_Shdr *symtab_hdr; | |
3137 | int insn; | |
3138 | bfd_vma max_branch_offset = 0; | |
3139 | bfd_vma offset = rel->r_offset; | |
3140 | bfd_signed_vma addend = rel->r_addend; | |
3141 | reloc_howto_type *howto = elf_hppa_howto_table + ELF_R_TYPE (rel->r_info); | |
3142 | unsigned int r_symndx = ELF_R_SYM (rel->r_info); | |
3143 | unsigned int r_type = howto->type; | |
3144 | bfd_byte *hit_data = contents + offset; | |
3145 | ||
4dfe6ac6 NC |
3146 | if (hppa_info == NULL) |
3147 | return bfd_reloc_notsupported; | |
68ffbac6 | 3148 | |
5887528b DA |
3149 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
3150 | local_offsets = elf_local_got_offsets (input_bfd); | |
3151 | insn = bfd_get_32 (input_bfd, hit_data); | |
3152 | ||
3153 | switch (r_type) | |
3154 | { | |
3155 | case R_PARISC_NONE: | |
3156 | break; | |
3157 | ||
3158 | /* Basic function call support. | |
3159 | ||
3160 | Note for a call to a function defined in another dynamic library | |
3161 | we want to redirect the call to a stub. */ | |
3162 | ||
3163 | /* PC relative relocs without an implicit offset. */ | |
3164 | case R_PARISC_PCREL21L: | |
3165 | case R_PARISC_PCREL14R: | |
3166 | case R_PARISC_PCREL14F: | |
3167 | case R_PARISC_PCREL14WR: | |
3168 | case R_PARISC_PCREL14DR: | |
3169 | case R_PARISC_PCREL16F: | |
3170 | case R_PARISC_PCREL16WF: | |
3171 | case R_PARISC_PCREL16DF: | |
3172 | { | |
3173 | /* If this is a call to a function defined in another dynamic | |
3174 | library, then redirect the call to the local stub for this | |
3175 | function. */ | |
3176 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3177 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3178 | + hppa_info->stub_sec->output_section->vma); | |
3179 | ||
3180 | /* Turn VALUE into a proper PC relative address. */ | |
3181 | value -= (offset + input_section->output_offset | |
3182 | + input_section->output_section->vma); | |
3183 | ||
3184 | /* Adjust for any field selectors. */ | |
3185 | if (r_type == R_PARISC_PCREL21L) | |
3186 | value = hppa_field_adjust (value, -8 + addend, e_lsel); | |
3187 | else if (r_type == R_PARISC_PCREL14F | |
3188 | || r_type == R_PARISC_PCREL16F | |
3189 | || r_type == R_PARISC_PCREL16WF | |
3190 | || r_type == R_PARISC_PCREL16DF) | |
3191 | value = hppa_field_adjust (value, -8 + addend, e_fsel); | |
3192 | else | |
3193 | value = hppa_field_adjust (value, -8 + addend, e_rsel); | |
3194 | ||
3195 | /* Apply the relocation to the given instruction. */ | |
3196 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3197 | break; | |
3198 | } | |
3199 | ||
3200 | case R_PARISC_PCREL12F: | |
3201 | case R_PARISC_PCREL22F: | |
3202 | case R_PARISC_PCREL17F: | |
3203 | case R_PARISC_PCREL22C: | |
3204 | case R_PARISC_PCREL17C: | |
3205 | case R_PARISC_PCREL17R: | |
3206 | { | |
3207 | /* If this is a call to a function defined in another dynamic | |
3208 | library, then redirect the call to the local stub for this | |
3209 | function. */ | |
3210 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3211 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3212 | + hppa_info->stub_sec->output_section->vma); | |
3213 | ||
3214 | /* Turn VALUE into a proper PC relative address. */ | |
3215 | value -= (offset + input_section->output_offset | |
3216 | + input_section->output_section->vma); | |
3217 | addend -= 8; | |
3218 | ||
3219 | if (r_type == (unsigned int) R_PARISC_PCREL22F) | |
3220 | max_branch_offset = (1 << (22-1)) << 2; | |
3221 | else if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3222 | max_branch_offset = (1 << (17-1)) << 2; | |
3223 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3224 | max_branch_offset = (1 << (12-1)) << 2; | |
3225 | ||
3226 | /* Make sure we can reach the branch target. */ | |
3227 | if (max_branch_offset != 0 | |
3228 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3229 | { | |
4eca0228 | 3230 | _bfd_error_handler |
695344c0 | 3231 | /* xgettext:c-format */ |
2dcf00ce | 3232 | (_("%pB(%pA+%#" PRIx64 "): cannot reach %s"), |
5887528b DA |
3233 | input_bfd, |
3234 | input_section, | |
2dcf00ce | 3235 | (uint64_t) offset, |
d91a6875 | 3236 | eh ? eh->root.root.string : "unknown"); |
5887528b | 3237 | bfd_set_error (bfd_error_bad_value); |
d91a6875 | 3238 | return bfd_reloc_overflow; |
5887528b DA |
3239 | } |
3240 | ||
3241 | /* Adjust for any field selectors. */ | |
3242 | if (r_type == R_PARISC_PCREL17R) | |
3243 | value = hppa_field_adjust (value, addend, e_rsel); | |
3244 | else | |
3245 | value = hppa_field_adjust (value, addend, e_fsel); | |
3246 | ||
3247 | /* All branches are implicitly shifted by 2 places. */ | |
3248 | value >>= 2; | |
3249 | ||
3250 | /* Apply the relocation to the given instruction. */ | |
3251 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3252 | break; | |
3253 | } | |
3254 | ||
3255 | /* Indirect references to data through the DLT. */ | |
3256 | case R_PARISC_DLTIND14R: | |
3257 | case R_PARISC_DLTIND14F: | |
3258 | case R_PARISC_DLTIND14DR: | |
3259 | case R_PARISC_DLTIND14WR: | |
3260 | case R_PARISC_DLTIND21L: | |
3261 | case R_PARISC_LTOFF_FPTR14R: | |
3262 | case R_PARISC_LTOFF_FPTR14DR: | |
3263 | case R_PARISC_LTOFF_FPTR14WR: | |
3264 | case R_PARISC_LTOFF_FPTR21L: | |
3265 | case R_PARISC_LTOFF_FPTR16F: | |
3266 | case R_PARISC_LTOFF_FPTR16WF: | |
3267 | case R_PARISC_LTOFF_FPTR16DF: | |
3268 | case R_PARISC_LTOFF_TP21L: | |
3269 | case R_PARISC_LTOFF_TP14R: | |
3270 | case R_PARISC_LTOFF_TP14F: | |
3271 | case R_PARISC_LTOFF_TP14WR: | |
3272 | case R_PARISC_LTOFF_TP14DR: | |
3273 | case R_PARISC_LTOFF_TP16F: | |
3274 | case R_PARISC_LTOFF_TP16WF: | |
3275 | case R_PARISC_LTOFF_TP16DF: | |
3276 | case R_PARISC_LTOFF16F: | |
3277 | case R_PARISC_LTOFF16WF: | |
3278 | case R_PARISC_LTOFF16DF: | |
3279 | { | |
3280 | bfd_vma off; | |
3281 | ||
3282 | /* If this relocation was against a local symbol, then we still | |
3283 | have not set up the DLT entry (it's not convenient to do so | |
3284 | in the "finalize_dlt" routine because it is difficult to get | |
3285 | to the local symbol's value). | |
3286 | ||
3287 | So, if this is a local symbol (h == NULL), then we need to | |
3288 | fill in its DLT entry. | |
3289 | ||
3290 | Similarly we may still need to set up an entry in .opd for | |
3291 | a local function which had its address taken. */ | |
3292 | if (hh == NULL) | |
3293 | { | |
3294 | bfd_vma *local_opd_offsets, *local_dlt_offsets; | |
3295 | ||
07d6d2b8 AM |
3296 | if (local_offsets == NULL) |
3297 | abort (); | |
5887528b DA |
3298 | |
3299 | /* Now do .opd creation if needed. */ | |
3300 | if (r_type == R_PARISC_LTOFF_FPTR14R | |
3301 | || r_type == R_PARISC_LTOFF_FPTR14DR | |
3302 | || r_type == R_PARISC_LTOFF_FPTR14WR | |
3303 | || r_type == R_PARISC_LTOFF_FPTR21L | |
3304 | || r_type == R_PARISC_LTOFF_FPTR16F | |
3305 | || r_type == R_PARISC_LTOFF_FPTR16WF | |
3306 | || r_type == R_PARISC_LTOFF_FPTR16DF) | |
3307 | { | |
3308 | local_opd_offsets = local_offsets + 2 * symtab_hdr->sh_info; | |
3309 | off = local_opd_offsets[r_symndx]; | |
3310 | ||
3311 | /* The last bit records whether we've already initialised | |
3312 | this local .opd entry. */ | |
3313 | if ((off & 1) != 0) | |
3314 | { | |
3315 | BFD_ASSERT (off != (bfd_vma) -1); | |
3316 | off &= ~1; | |
3317 | } | |
3318 | else | |
3319 | { | |
3320 | local_opd_offsets[r_symndx] |= 1; | |
3321 | ||
3322 | /* The first two words of an .opd entry are zero. */ | |
3323 | memset (hppa_info->opd_sec->contents + off, 0, 16); | |
3324 | ||
3325 | /* The next word is the address of the function. */ | |
3326 | bfd_put_64 (hppa_info->opd_sec->owner, value + addend, | |
3327 | (hppa_info->opd_sec->contents + off + 16)); | |
3328 | ||
3329 | /* The last word is our local __gp value. */ | |
586338b8 | 3330 | value = _bfd_get_gp_value (info->output_bfd); |
5887528b DA |
3331 | bfd_put_64 (hppa_info->opd_sec->owner, value, |
3332 | (hppa_info->opd_sec->contents + off + 24)); | |
3333 | } | |
3334 | ||
3335 | /* The DLT value is the address of the .opd entry. */ | |
3336 | value = (off | |
3337 | + hppa_info->opd_sec->output_offset | |
3338 | + hppa_info->opd_sec->output_section->vma); | |
3339 | addend = 0; | |
3340 | } | |
3341 | ||
3342 | local_dlt_offsets = local_offsets; | |
3343 | off = local_dlt_offsets[r_symndx]; | |
3344 | ||
3345 | if ((off & 1) != 0) | |
3346 | { | |
3347 | BFD_ASSERT (off != (bfd_vma) -1); | |
3348 | off &= ~1; | |
3349 | } | |
3350 | else | |
3351 | { | |
3352 | local_dlt_offsets[r_symndx] |= 1; | |
3353 | bfd_put_64 (hppa_info->dlt_sec->owner, | |
3354 | value + addend, | |
3355 | hppa_info->dlt_sec->contents + off); | |
3356 | } | |
3357 | } | |
3358 | else | |
3359 | off = hh->dlt_offset; | |
3360 | ||
3361 | /* We want the value of the DLT offset for this symbol, not | |
3362 | the symbol's actual address. Note that __gp may not point | |
3363 | to the start of the DLT, so we have to compute the absolute | |
3364 | address, then subtract out the value of __gp. */ | |
3365 | value = (off | |
3366 | + hppa_info->dlt_sec->output_offset | |
3367 | + hppa_info->dlt_sec->output_section->vma); | |
3368 | value -= _bfd_get_gp_value (output_bfd); | |
3369 | ||
3370 | /* All DLTIND relocations are basically the same at this point, | |
3371 | except that we need different field selectors for the 21bit | |
3372 | version vs the 14bit versions. */ | |
3373 | if (r_type == R_PARISC_DLTIND21L | |
3374 | || r_type == R_PARISC_LTOFF_FPTR21L | |
3375 | || r_type == R_PARISC_LTOFF_TP21L) | |
3376 | value = hppa_field_adjust (value, 0, e_lsel); | |
3377 | else if (r_type == R_PARISC_DLTIND14F | |
3378 | || r_type == R_PARISC_LTOFF_FPTR16F | |
3379 | || r_type == R_PARISC_LTOFF_FPTR16WF | |
3380 | || r_type == R_PARISC_LTOFF_FPTR16DF | |
3381 | || r_type == R_PARISC_LTOFF16F | |
3382 | || r_type == R_PARISC_LTOFF16DF | |
3383 | || r_type == R_PARISC_LTOFF16WF | |
3384 | || r_type == R_PARISC_LTOFF_TP16F | |
3385 | || r_type == R_PARISC_LTOFF_TP16WF | |
3386 | || r_type == R_PARISC_LTOFF_TP16DF) | |
3387 | value = hppa_field_adjust (value, 0, e_fsel); | |
3388 | else | |
3389 | value = hppa_field_adjust (value, 0, e_rsel); | |
3390 | ||
3391 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3392 | break; | |
3393 | } | |
3394 | ||
3395 | case R_PARISC_DLTREL14R: | |
3396 | case R_PARISC_DLTREL14F: | |
3397 | case R_PARISC_DLTREL14DR: | |
3398 | case R_PARISC_DLTREL14WR: | |
3399 | case R_PARISC_DLTREL21L: | |
3400 | case R_PARISC_DPREL21L: | |
3401 | case R_PARISC_DPREL14WR: | |
3402 | case R_PARISC_DPREL14DR: | |
3403 | case R_PARISC_DPREL14R: | |
3404 | case R_PARISC_DPREL14F: | |
3405 | case R_PARISC_GPREL16F: | |
3406 | case R_PARISC_GPREL16WF: | |
3407 | case R_PARISC_GPREL16DF: | |
3408 | { | |
3409 | /* Subtract out the global pointer value to make value a DLT | |
3410 | relative address. */ | |
3411 | value -= _bfd_get_gp_value (output_bfd); | |
3412 | ||
3413 | /* All DLTREL relocations are basically the same at this point, | |
3414 | except that we need different field selectors for the 21bit | |
3415 | version vs the 14bit versions. */ | |
3416 | if (r_type == R_PARISC_DLTREL21L | |
3417 | || r_type == R_PARISC_DPREL21L) | |
3418 | value = hppa_field_adjust (value, addend, e_lrsel); | |
3419 | else if (r_type == R_PARISC_DLTREL14F | |
3420 | || r_type == R_PARISC_DPREL14F | |
3421 | || r_type == R_PARISC_GPREL16F | |
3422 | || r_type == R_PARISC_GPREL16WF | |
3423 | || r_type == R_PARISC_GPREL16DF) | |
3424 | value = hppa_field_adjust (value, addend, e_fsel); | |
3425 | else | |
3426 | value = hppa_field_adjust (value, addend, e_rrsel); | |
3427 | ||
3428 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3429 | break; | |
3430 | } | |
3431 | ||
3432 | case R_PARISC_DIR21L: | |
3433 | case R_PARISC_DIR17R: | |
3434 | case R_PARISC_DIR17F: | |
3435 | case R_PARISC_DIR14R: | |
3436 | case R_PARISC_DIR14F: | |
3437 | case R_PARISC_DIR14WR: | |
3438 | case R_PARISC_DIR14DR: | |
3439 | case R_PARISC_DIR16F: | |
3440 | case R_PARISC_DIR16WF: | |
3441 | case R_PARISC_DIR16DF: | |
3442 | { | |
3443 | /* All DIR relocations are basically the same at this point, | |
3444 | except that branch offsets need to be divided by four, and | |
3445 | we need different field selectors. Note that we don't | |
3446 | redirect absolute calls to local stubs. */ | |
3447 | ||
3448 | if (r_type == R_PARISC_DIR21L) | |
3449 | value = hppa_field_adjust (value, addend, e_lrsel); | |
3450 | else if (r_type == R_PARISC_DIR17F | |
3451 | || r_type == R_PARISC_DIR16F | |
3452 | || r_type == R_PARISC_DIR16WF | |
3453 | || r_type == R_PARISC_DIR16DF | |
3454 | || r_type == R_PARISC_DIR14F) | |
3455 | value = hppa_field_adjust (value, addend, e_fsel); | |
3456 | else | |
3457 | value = hppa_field_adjust (value, addend, e_rrsel); | |
3458 | ||
3459 | if (r_type == R_PARISC_DIR17R || r_type == R_PARISC_DIR17F) | |
3460 | /* All branches are implicitly shifted by 2 places. */ | |
3461 | value >>= 2; | |
3462 | ||
3463 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3464 | break; | |
3465 | } | |
3466 | ||
3467 | case R_PARISC_PLTOFF21L: | |
3468 | case R_PARISC_PLTOFF14R: | |
3469 | case R_PARISC_PLTOFF14F: | |
3470 | case R_PARISC_PLTOFF14WR: | |
3471 | case R_PARISC_PLTOFF14DR: | |
3472 | case R_PARISC_PLTOFF16F: | |
3473 | case R_PARISC_PLTOFF16WF: | |
3474 | case R_PARISC_PLTOFF16DF: | |
3475 | { | |
3476 | /* We want the value of the PLT offset for this symbol, not | |
3477 | the symbol's actual address. Note that __gp may not point | |
3478 | to the start of the DLT, so we have to compute the absolute | |
3479 | address, then subtract out the value of __gp. */ | |
3480 | value = (hh->plt_offset | |
9b8a8575 L |
3481 | + hppa_info->root.splt->output_offset |
3482 | + hppa_info->root.splt->output_section->vma); | |
5887528b DA |
3483 | value -= _bfd_get_gp_value (output_bfd); |
3484 | ||
3485 | /* All PLTOFF relocations are basically the same at this point, | |
3486 | except that we need different field selectors for the 21bit | |
3487 | version vs the 14bit versions. */ | |
3488 | if (r_type == R_PARISC_PLTOFF21L) | |
3489 | value = hppa_field_adjust (value, addend, e_lrsel); | |
3490 | else if (r_type == R_PARISC_PLTOFF14F | |
3491 | || r_type == R_PARISC_PLTOFF16F | |
3492 | || r_type == R_PARISC_PLTOFF16WF | |
3493 | || r_type == R_PARISC_PLTOFF16DF) | |
3494 | value = hppa_field_adjust (value, addend, e_fsel); | |
3495 | else | |
3496 | value = hppa_field_adjust (value, addend, e_rrsel); | |
3497 | ||
3498 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3499 | break; | |
3500 | } | |
3501 | ||
3502 | case R_PARISC_LTOFF_FPTR32: | |
3503 | { | |
38cf70ca NC |
3504 | /* FIXME: There used to be code here to create the FPTR itself if |
3505 | the relocation was against a local symbol. But the code could | |
3506 | never have worked. If the assert below is ever triggered then | |
3507 | the code will need to be reinstated and fixed so that it does | |
3508 | what is needed. */ | |
3509 | BFD_ASSERT (hh != NULL); | |
5887528b DA |
3510 | |
3511 | /* We want the value of the DLT offset for this symbol, not | |
3512 | the symbol's actual address. Note that __gp may not point | |
3513 | to the start of the DLT, so we have to compute the absolute | |
3514 | address, then subtract out the value of __gp. */ | |
3515 | value = (hh->dlt_offset | |
3516 | + hppa_info->dlt_sec->output_offset | |
3517 | + hppa_info->dlt_sec->output_section->vma); | |
3518 | value -= _bfd_get_gp_value (output_bfd); | |
3519 | bfd_put_32 (input_bfd, value, hit_data); | |
3520 | return bfd_reloc_ok; | |
3521 | } | |
3522 | ||
3523 | case R_PARISC_LTOFF_FPTR64: | |
3524 | case R_PARISC_LTOFF_TP64: | |
3525 | { | |
3526 | /* We may still need to create the FPTR itself if it was for | |
3527 | a local symbol. */ | |
3528 | if (eh == NULL && r_type == R_PARISC_LTOFF_FPTR64) | |
3529 | { | |
3530 | /* The first two words of an .opd entry are zero. */ | |
3531 | memset (hppa_info->opd_sec->contents + hh->opd_offset, 0, 16); | |
3532 | ||
3533 | /* The next word is the address of the function. */ | |
3534 | bfd_put_64 (hppa_info->opd_sec->owner, value + addend, | |
3535 | (hppa_info->opd_sec->contents | |
3536 | + hh->opd_offset + 16)); | |
3537 | ||
3538 | /* The last word is our local __gp value. */ | |
586338b8 | 3539 | value = _bfd_get_gp_value (info->output_bfd); |
5887528b DA |
3540 | bfd_put_64 (hppa_info->opd_sec->owner, value, |
3541 | hppa_info->opd_sec->contents + hh->opd_offset + 24); | |
3542 | ||
3543 | /* The DLT value is the address of the .opd entry. */ | |
3544 | value = (hh->opd_offset | |
3545 | + hppa_info->opd_sec->output_offset | |
3546 | + hppa_info->opd_sec->output_section->vma); | |
3547 | ||
3548 | bfd_put_64 (hppa_info->dlt_sec->owner, | |
3549 | value, | |
3550 | hppa_info->dlt_sec->contents + hh->dlt_offset); | |
3551 | } | |
3552 | ||
3553 | /* We want the value of the DLT offset for this symbol, not | |
3554 | the symbol's actual address. Note that __gp may not point | |
3555 | to the start of the DLT, so we have to compute the absolute | |
3556 | address, then subtract out the value of __gp. */ | |
3557 | value = (hh->dlt_offset | |
3558 | + hppa_info->dlt_sec->output_offset | |
3559 | + hppa_info->dlt_sec->output_section->vma); | |
3560 | value -= _bfd_get_gp_value (output_bfd); | |
3561 | bfd_put_64 (input_bfd, value, hit_data); | |
3562 | return bfd_reloc_ok; | |
3563 | } | |
3564 | ||
3565 | case R_PARISC_DIR32: | |
3566 | bfd_put_32 (input_bfd, value + addend, hit_data); | |
3567 | return bfd_reloc_ok; | |
3568 | ||
3569 | case R_PARISC_DIR64: | |
3570 | bfd_put_64 (input_bfd, value + addend, hit_data); | |
3571 | return bfd_reloc_ok; | |
3572 | ||
3573 | case R_PARISC_GPREL64: | |
3574 | /* Subtract out the global pointer value to make value a DLT | |
3575 | relative address. */ | |
3576 | value -= _bfd_get_gp_value (output_bfd); | |
3577 | ||
3578 | bfd_put_64 (input_bfd, value + addend, hit_data); | |
3579 | return bfd_reloc_ok; | |
3580 | ||
3581 | case R_PARISC_LTOFF64: | |
3582 | /* We want the value of the DLT offset for this symbol, not | |
3583 | the symbol's actual address. Note that __gp may not point | |
3584 | to the start of the DLT, so we have to compute the absolute | |
3585 | address, then subtract out the value of __gp. */ | |
3586 | value = (hh->dlt_offset | |
3587 | + hppa_info->dlt_sec->output_offset | |
3588 | + hppa_info->dlt_sec->output_section->vma); | |
3589 | value -= _bfd_get_gp_value (output_bfd); | |
3590 | ||
3591 | bfd_put_64 (input_bfd, value + addend, hit_data); | |
3592 | return bfd_reloc_ok; | |
3593 | ||
3594 | case R_PARISC_PCREL32: | |
3595 | { | |
3596 | /* If this is a call to a function defined in another dynamic | |
3597 | library, then redirect the call to the local stub for this | |
3598 | function. */ | |
3599 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3600 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3601 | + hppa_info->stub_sec->output_section->vma); | |
3602 | ||
3603 | /* Turn VALUE into a proper PC relative address. */ | |
3604 | value -= (offset + input_section->output_offset | |
3605 | + input_section->output_section->vma); | |
3606 | ||
3607 | value += addend; | |
3608 | value -= 8; | |
3609 | bfd_put_32 (input_bfd, value, hit_data); | |
3610 | return bfd_reloc_ok; | |
3611 | } | |
3612 | ||
3613 | case R_PARISC_PCREL64: | |
3614 | { | |
3615 | /* If this is a call to a function defined in another dynamic | |
3616 | library, then redirect the call to the local stub for this | |
3617 | function. */ | |
3618 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3619 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3620 | + hppa_info->stub_sec->output_section->vma); | |
3621 | ||
3622 | /* Turn VALUE into a proper PC relative address. */ | |
3623 | value -= (offset + input_section->output_offset | |
3624 | + input_section->output_section->vma); | |
3625 | ||
3626 | value += addend; | |
3627 | value -= 8; | |
3628 | bfd_put_64 (input_bfd, value, hit_data); | |
3629 | return bfd_reloc_ok; | |
3630 | } | |
3631 | ||
3632 | case R_PARISC_FPTR64: | |
3633 | { | |
3634 | bfd_vma off; | |
3635 | ||
3636 | /* We may still need to create the FPTR itself if it was for | |
3637 | a local symbol. */ | |
3638 | if (hh == NULL) | |
3639 | { | |
3640 | bfd_vma *local_opd_offsets; | |
3641 | ||
07d6d2b8 AM |
3642 | if (local_offsets == NULL) |
3643 | abort (); | |
5887528b DA |
3644 | |
3645 | local_opd_offsets = local_offsets + 2 * symtab_hdr->sh_info; | |
3646 | off = local_opd_offsets[r_symndx]; | |
3647 | ||
3648 | /* The last bit records whether we've already initialised | |
3649 | this local .opd entry. */ | |
3650 | if ((off & 1) != 0) | |
3651 | { | |
3652 | BFD_ASSERT (off != (bfd_vma) -1); | |
07d6d2b8 | 3653 | off &= ~1; |
5887528b DA |
3654 | } |
3655 | else | |
3656 | { | |
3657 | /* The first two words of an .opd entry are zero. */ | |
3658 | memset (hppa_info->opd_sec->contents + off, 0, 16); | |
3659 | ||
3660 | /* The next word is the address of the function. */ | |
3661 | bfd_put_64 (hppa_info->opd_sec->owner, value + addend, | |
3662 | (hppa_info->opd_sec->contents + off + 16)); | |
3663 | ||
3664 | /* The last word is our local __gp value. */ | |
586338b8 | 3665 | value = _bfd_get_gp_value (info->output_bfd); |
5887528b DA |
3666 | bfd_put_64 (hppa_info->opd_sec->owner, value, |
3667 | hppa_info->opd_sec->contents + off + 24); | |
3668 | } | |
3669 | } | |
3670 | else | |
3671 | off = hh->opd_offset; | |
3672 | ||
3673 | if (hh == NULL || hh->want_opd) | |
3674 | /* We want the value of the OPD offset for this symbol. */ | |
3675 | value = (off | |
3676 | + hppa_info->opd_sec->output_offset | |
3677 | + hppa_info->opd_sec->output_section->vma); | |
3678 | else | |
3679 | /* We want the address of the symbol. */ | |
3680 | value += addend; | |
3681 | ||
3682 | bfd_put_64 (input_bfd, value, hit_data); | |
3683 | return bfd_reloc_ok; | |
3684 | } | |
3685 | ||
3686 | case R_PARISC_SECREL32: | |
27e5e547 | 3687 | if (sym_sec && sym_sec->output_section) |
5887528b DA |
3688 | value -= sym_sec->output_section->vma; |
3689 | bfd_put_32 (input_bfd, value + addend, hit_data); | |
3690 | return bfd_reloc_ok; | |
3691 | ||
3692 | case R_PARISC_SEGREL32: | |
3693 | case R_PARISC_SEGREL64: | |
3694 | { | |
3695 | /* If this is the first SEGREL relocation, then initialize | |
3696 | the segment base values. */ | |
3697 | if (hppa_info->text_segment_base == (bfd_vma) -1) | |
3698 | bfd_map_over_sections (output_bfd, elf_hppa_record_segment_addrs, | |
3699 | hppa_info); | |
3700 | ||
3701 | /* VALUE holds the absolute address. We want to include the | |
3702 | addend, then turn it into a segment relative address. | |
3703 | ||
3704 | The segment is derived from SYM_SEC. We assume that there are | |
3705 | only two segments of note in the resulting executable/shlib. | |
3706 | A readonly segment (.text) and a readwrite segment (.data). */ | |
3707 | value += addend; | |
3708 | ||
3709 | if (sym_sec->flags & SEC_CODE) | |
3710 | value -= hppa_info->text_segment_base; | |
3711 | else | |
3712 | value -= hppa_info->data_segment_base; | |
3713 | ||
3714 | if (r_type == R_PARISC_SEGREL32) | |
3715 | bfd_put_32 (input_bfd, value, hit_data); | |
3716 | else | |
3717 | bfd_put_64 (input_bfd, value, hit_data); | |
3718 | return bfd_reloc_ok; | |
3719 | } | |
3720 | ||
3721 | /* Something we don't know how to handle. */ | |
3722 | default: | |
3723 | return bfd_reloc_notsupported; | |
3724 | } | |
3725 | ||
3726 | /* Update the instruction word. */ | |
3727 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); | |
3728 | return bfd_reloc_ok; | |
3729 | } | |
3730 | ||
3731 | /* Relocate an HPPA ELF section. */ | |
3732 | ||
0f684201 | 3733 | static int |
5887528b DA |
3734 | elf64_hppa_relocate_section (bfd *output_bfd, |
3735 | struct bfd_link_info *info, | |
3736 | bfd *input_bfd, | |
3737 | asection *input_section, | |
3738 | bfd_byte *contents, | |
3739 | Elf_Internal_Rela *relocs, | |
3740 | Elf_Internal_Sym *local_syms, | |
3741 | asection **local_sections) | |
3742 | { | |
3743 | Elf_Internal_Shdr *symtab_hdr; | |
3744 | Elf_Internal_Rela *rel; | |
3745 | Elf_Internal_Rela *relend; | |
3746 | struct elf64_hppa_link_hash_table *hppa_info; | |
3747 | ||
3748 | hppa_info = hppa_link_hash_table (info); | |
4dfe6ac6 | 3749 | if (hppa_info == NULL) |
0a1b45a2 | 3750 | return false; |
4dfe6ac6 | 3751 | |
5887528b DA |
3752 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
3753 | ||
3754 | rel = relocs; | |
3755 | relend = relocs + input_section->reloc_count; | |
3756 | for (; rel < relend; rel++) | |
3757 | { | |
3758 | int r_type; | |
3759 | reloc_howto_type *howto = elf_hppa_howto_table + ELF_R_TYPE (rel->r_info); | |
3760 | unsigned long r_symndx; | |
3761 | struct elf_link_hash_entry *eh; | |
3762 | Elf_Internal_Sym *sym; | |
3763 | asection *sym_sec; | |
3764 | bfd_vma relocation; | |
3765 | bfd_reloc_status_type r; | |
5887528b DA |
3766 | |
3767 | r_type = ELF_R_TYPE (rel->r_info); | |
3768 | if (r_type < 0 || r_type >= (int) R_PARISC_UNIMPLEMENTED) | |
3769 | { | |
3770 | bfd_set_error (bfd_error_bad_value); | |
0a1b45a2 | 3771 | return false; |
5887528b DA |
3772 | } |
3773 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3774 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3775 | continue; | |
3776 | ||
3777 | /* This is a final link. */ | |
3778 | r_symndx = ELF_R_SYM (rel->r_info); | |
3779 | eh = NULL; | |
3780 | sym = NULL; | |
3781 | sym_sec = NULL; | |
5887528b DA |
3782 | if (r_symndx < symtab_hdr->sh_info) |
3783 | { | |
3784 | /* This is a local symbol, hh defaults to NULL. */ | |
3785 | sym = local_syms + r_symndx; | |
3786 | sym_sec = local_sections[r_symndx]; | |
3787 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rel); | |
3788 | } | |
3789 | else | |
3790 | { | |
3791 | /* This is not a local symbol. */ | |
5887528b DA |
3792 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); |
3793 | ||
68ffbac6 | 3794 | /* It seems this can happen with erroneous or unsupported |
5887528b DA |
3795 | input (mixing a.out and elf in an archive, for example.) */ |
3796 | if (sym_hashes == NULL) | |
0a1b45a2 | 3797 | return false; |
5887528b DA |
3798 | |
3799 | eh = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3800 | ||
8a5da09b AM |
3801 | if (info->wrap_hash != NULL |
3802 | && (input_section->flags & SEC_DEBUGGING) != 0) | |
3803 | eh = ((struct elf_link_hash_entry *) | |
3804 | unwrap_hash_lookup (info, input_bfd, &eh->root)); | |
3805 | ||
68ffbac6 | 3806 | while (eh->root.type == bfd_link_hash_indirect |
5887528b DA |
3807 | || eh->root.type == bfd_link_hash_warning) |
3808 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
3809 | ||
5887528b DA |
3810 | relocation = 0; |
3811 | if (eh->root.type == bfd_link_hash_defined | |
3812 | || eh->root.type == bfd_link_hash_defweak) | |
3813 | { | |
3814 | sym_sec = eh->root.u.def.section; | |
c7e2358a AM |
3815 | if (sym_sec != NULL |
3816 | && sym_sec->output_section != NULL) | |
5887528b DA |
3817 | relocation = (eh->root.u.def.value |
3818 | + sym_sec->output_section->vma | |
3819 | + sym_sec->output_offset); | |
3820 | } | |
3821 | else if (eh->root.type == bfd_link_hash_undefweak) | |
3822 | ; | |
3823 | else if (info->unresolved_syms_in_objects == RM_IGNORE | |
3824 | && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT) | |
3825 | ; | |
0e1862bb | 3826 | else if (!bfd_link_relocatable (info) |
5887528b DA |
3827 | && elf_hppa_is_dynamic_loader_symbol (eh->root.root.string)) |
3828 | continue; | |
0e1862bb | 3829 | else if (!bfd_link_relocatable (info)) |
5887528b | 3830 | { |
0a1b45a2 | 3831 | bool err; |
95a51568 FS |
3832 | |
3833 | err = (info->unresolved_syms_in_objects == RM_DIAGNOSE | |
3834 | && !info->warn_unresolved_syms) | |
3835 | || ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT; | |
3836 | ||
3837 | info->callbacks->undefined_symbol | |
3838 | (info, eh->root.root.string, input_bfd, | |
3839 | input_section, rel->r_offset, err); | |
5887528b DA |
3840 | } |
3841 | ||
07d6d2b8 AM |
3842 | if (!bfd_link_relocatable (info) |
3843 | && relocation == 0 | |
3844 | && eh->root.type != bfd_link_hash_defined | |
3845 | && eh->root.type != bfd_link_hash_defweak | |
3846 | && eh->root.type != bfd_link_hash_undefweak) | |
3847 | { | |
3848 | if (info->unresolved_syms_in_objects == RM_IGNORE | |
3849 | && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT | |
3850 | && eh->type == STT_PARISC_MILLI) | |
95a51568 | 3851 | info->callbacks->undefined_symbol |
1a72702b | 3852 | (info, eh_name (eh), input_bfd, |
0a1b45a2 | 3853 | input_section, rel->r_offset, false); |
07d6d2b8 | 3854 | } |
5887528b DA |
3855 | } |
3856 | ||
dbaa2011 | 3857 | if (sym_sec != NULL && discarded_section (sym_sec)) |
e4067dbb | 3858 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 3859 | rel, 1, relend, howto, 0, contents); |
5887528b | 3860 | |
0e1862bb | 3861 | if (bfd_link_relocatable (info)) |
5887528b DA |
3862 | continue; |
3863 | ||
3864 | r = elf_hppa_final_link_relocate (rel, input_bfd, output_bfd, | |
3865 | input_section, contents, | |
3866 | relocation, info, sym_sec, | |
3867 | eh); | |
3868 | ||
3869 | if (r != bfd_reloc_ok) | |
3870 | { | |
3871 | switch (r) | |
3872 | { | |
3873 | default: | |
3874 | abort (); | |
3875 | case bfd_reloc_overflow: | |
3876 | { | |
3877 | const char *sym_name; | |
3878 | ||
3879 | if (eh != NULL) | |
3880 | sym_name = NULL; | |
3881 | else | |
3882 | { | |
3883 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
3884 | symtab_hdr->sh_link, | |
3885 | sym->st_name); | |
3886 | if (sym_name == NULL) | |
0a1b45a2 | 3887 | return false; |
5887528b | 3888 | if (*sym_name == '\0') |
fd361982 | 3889 | sym_name = bfd_section_name (sym_sec); |
5887528b DA |
3890 | } |
3891 | ||
1a72702b AM |
3892 | (*info->callbacks->reloc_overflow) |
3893 | (info, (eh ? &eh->root : NULL), sym_name, howto->name, | |
3894 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); | |
5887528b DA |
3895 | } |
3896 | break; | |
3897 | } | |
3898 | } | |
3899 | } | |
0a1b45a2 | 3900 | return true; |
5887528b DA |
3901 | } |
3902 | ||
b35d266b | 3903 | static const struct bfd_elf_special_section elf64_hppa_special_sections[] = |
2f89ff8d | 3904 | { |
df3a023b | 3905 | { STRING_COMMA_LEN (".tbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_HP_TLS }, |
07d6d2b8 AM |
3906 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
3907 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
3908 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, | |
3909 | { STRING_COMMA_LEN (".dlt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, | |
0112cd26 | 3910 | { STRING_COMMA_LEN (".sdata"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, |
07d6d2b8 | 3911 | { STRING_COMMA_LEN (".sbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, |
07d6d2b8 | 3912 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
3913 | }; |
3914 | ||
15bda425 JL |
3915 | /* The hash bucket size is the standard one, namely 4. */ |
3916 | ||
3917 | const struct elf_size_info hppa64_elf_size_info = | |
3918 | { | |
3919 | sizeof (Elf64_External_Ehdr), | |
3920 | sizeof (Elf64_External_Phdr), | |
3921 | sizeof (Elf64_External_Shdr), | |
3922 | sizeof (Elf64_External_Rel), | |
3923 | sizeof (Elf64_External_Rela), | |
3924 | sizeof (Elf64_External_Sym), | |
3925 | sizeof (Elf64_External_Dyn), | |
3926 | sizeof (Elf_External_Note), | |
3927 | 4, | |
3928 | 1, | |
45d6a902 | 3929 | 64, 3, |
15bda425 JL |
3930 | ELFCLASS64, EV_CURRENT, |
3931 | bfd_elf64_write_out_phdrs, | |
3932 | bfd_elf64_write_shdrs_and_ehdr, | |
1489a3a0 | 3933 | bfd_elf64_checksum_contents, |
15bda425 | 3934 | bfd_elf64_write_relocs, |
73ff0d56 | 3935 | bfd_elf64_swap_symbol_in, |
15bda425 JL |
3936 | bfd_elf64_swap_symbol_out, |
3937 | bfd_elf64_slurp_reloc_table, | |
3938 | bfd_elf64_slurp_symbol_table, | |
3939 | bfd_elf64_swap_dyn_in, | |
3940 | bfd_elf64_swap_dyn_out, | |
947216bf AM |
3941 | bfd_elf64_swap_reloc_in, |
3942 | bfd_elf64_swap_reloc_out, | |
3943 | bfd_elf64_swap_reloca_in, | |
3944 | bfd_elf64_swap_reloca_out | |
15bda425 JL |
3945 | }; |
3946 | ||
6d00b590 | 3947 | #define TARGET_BIG_SYM hppa_elf64_vec |
15bda425 JL |
3948 | #define TARGET_BIG_NAME "elf64-hppa" |
3949 | #define ELF_ARCH bfd_arch_hppa | |
ae95ffa6 | 3950 | #define ELF_TARGET_ID HPPA64_ELF_DATA |
15bda425 JL |
3951 | #define ELF_MACHINE_CODE EM_PARISC |
3952 | /* This is not strictly correct. The maximum page size for PA2.0 is | |
3953 | 64M. But everything still uses 4k. */ | |
3954 | #define ELF_MAXPAGESIZE 0x1000 | |
d1036acb L |
3955 | #define ELF_OSABI ELFOSABI_HPUX |
3956 | ||
15bda425 | 3957 | #define bfd_elf64_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup |
157090f7 | 3958 | #define bfd_elf64_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup |
15bda425 JL |
3959 | #define bfd_elf64_bfd_is_local_label_name elf_hppa_is_local_label_name |
3960 | #define elf_info_to_howto elf_hppa_info_to_howto | |
3961 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
3962 | ||
3963 | #define elf_backend_section_from_shdr elf64_hppa_section_from_shdr | |
3964 | #define elf_backend_object_p elf64_hppa_object_p | |
3965 | #define elf_backend_final_write_processing \ | |
3966 | elf_hppa_final_write_processing | |
99c79b2e | 3967 | #define elf_backend_fake_sections elf_hppa_fake_sections |
15bda425 JL |
3968 | #define elf_backend_add_symbol_hook elf_hppa_add_symbol_hook |
3969 | ||
f0fe0e16 | 3970 | #define elf_backend_relocate_section elf_hppa_relocate_section |
15bda425 JL |
3971 | |
3972 | #define bfd_elf64_bfd_final_link elf_hppa_final_link | |
3973 | ||
3974 | #define elf_backend_create_dynamic_sections \ | |
3975 | elf64_hppa_create_dynamic_sections | |
ed7e9d0b | 3976 | #define elf_backend_init_file_header elf64_hppa_init_file_header |
15bda425 | 3977 | |
d00dd7dc AM |
3978 | #define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all |
3979 | ||
15bda425 JL |
3980 | #define elf_backend_adjust_dynamic_symbol \ |
3981 | elf64_hppa_adjust_dynamic_symbol | |
3982 | ||
af969b14 | 3983 | #define elf_backend_late_size_sections elf64_hppa_late_size_sections |
15bda425 JL |
3984 | |
3985 | #define elf_backend_finish_dynamic_symbol \ | |
3986 | elf64_hppa_finish_dynamic_symbol | |
3987 | #define elf_backend_finish_dynamic_sections \ | |
3988 | elf64_hppa_finish_dynamic_sections | |
235ecfbc NC |
3989 | #define elf_backend_grok_prstatus elf64_hppa_grok_prstatus |
3990 | #define elf_backend_grok_psinfo elf64_hppa_grok_psinfo | |
68ffbac6 | 3991 | |
15bda425 JL |
3992 | /* Stuff for the BFD linker: */ |
3993 | #define bfd_elf64_bfd_link_hash_table_create \ | |
3994 | elf64_hppa_hash_table_create | |
3995 | ||
3996 | #define elf_backend_check_relocs \ | |
3997 | elf64_hppa_check_relocs | |
3998 | ||
3999 | #define elf_backend_size_info \ | |
4000 | hppa64_elf_size_info | |
4001 | ||
4002 | #define elf_backend_additional_program_headers \ | |
4003 | elf64_hppa_additional_program_headers | |
4004 | ||
4005 | #define elf_backend_modify_segment_map \ | |
4006 | elf64_hppa_modify_segment_map | |
4007 | ||
1a9ccd70 NC |
4008 | #define elf_backend_allow_non_load_phdr \ |
4009 | elf64_hppa_allow_non_load_phdr | |
4010 | ||
15bda425 JL |
4011 | #define elf_backend_link_output_symbol_hook \ |
4012 | elf64_hppa_link_output_symbol_hook | |
4013 | ||
15bda425 JL |
4014 | #define elf_backend_want_got_plt 0 |
4015 | #define elf_backend_plt_readonly 0 | |
4016 | #define elf_backend_want_plt_sym 0 | |
4017 | #define elf_backend_got_header_size 0 | |
0a1b45a2 | 4018 | #define elf_backend_type_change_ok true |
b34976b6 AM |
4019 | #define elf_backend_get_symbol_type elf64_hppa_elf_get_symbol_type |
4020 | #define elf_backend_reloc_type_class elf64_hppa_reloc_type_class | |
4021 | #define elf_backend_rela_normal 1 | |
29ef7005 | 4022 | #define elf_backend_special_sections elf64_hppa_special_sections |
8a696751 | 4023 | #define elf_backend_action_discarded elf_hppa_action_discarded |
d97a8924 | 4024 | #define elf_backend_section_from_phdr elf64_hppa_section_from_phdr |
15bda425 | 4025 | |
83d1651b L |
4026 | #define elf64_bed elf64_hppa_hpux_bed |
4027 | ||
15bda425 | 4028 | #include "elf64-target.h" |
d952f17a AM |
4029 | |
4030 | #undef TARGET_BIG_SYM | |
6d00b590 | 4031 | #define TARGET_BIG_SYM hppa_elf64_linux_vec |
d952f17a AM |
4032 | #undef TARGET_BIG_NAME |
4033 | #define TARGET_BIG_NAME "elf64-hppa-linux" | |
d1036acb | 4034 | #undef ELF_OSABI |
9c55345c | 4035 | #define ELF_OSABI ELFOSABI_GNU |
83d1651b L |
4036 | #undef elf64_bed |
4037 | #define elf64_bed elf64_hppa_linux_bed | |
df3a023b AM |
4038 | #undef elf_backend_special_sections |
4039 | #define elf_backend_special_sections (elf64_hppa_special_sections + 1) | |
d952f17a | 4040 | |
d952f17a | 4041 | #include "elf64-target.h" |