Commit | Line | Data |
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b352eebf | 1 | /* Support for HPPA 64-bit ELF |
2571583a | 2 | Copyright (C) 1999-2017 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" |
df7b86aa | 22 | #include "alloca-conf.h" |
3db64b00 | 23 | #include "bfd.h" |
15bda425 JL |
24 | #include "libbfd.h" |
25 | #include "elf-bfd.h" | |
26 | #include "elf/hppa.h" | |
27 | #include "libhppa.h" | |
28 | #include "elf64-hppa.h" | |
e1fa0163 | 29 | #include "libiberty.h" |
8bc9c892 | 30 | |
15bda425 JL |
31 | #define ARCH_SIZE 64 |
32 | ||
33 | #define PLT_ENTRY_SIZE 0x10 | |
34 | #define DLT_ENTRY_SIZE 0x8 | |
35 | #define OPD_ENTRY_SIZE 0x20 | |
fe8bc63d | 36 | |
15bda425 JL |
37 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/pa20_64/dld.sl" |
38 | ||
39 | /* The stub is supposed to load the target address and target's DP | |
40 | value out of the PLT, then do an external branch to the target | |
41 | address. | |
42 | ||
43 | LDD PLTOFF(%r27),%r1 | |
44 | BVE (%r1) | |
45 | LDD PLTOFF+8(%r27),%r27 | |
46 | ||
47 | Note that we must use the LDD with a 14 bit displacement, not the one | |
48 | with a 5 bit displacement. */ | |
49 | static char plt_stub[] = {0x53, 0x61, 0x00, 0x00, 0xe8, 0x20, 0xd0, 0x00, | |
50 | 0x53, 0x7b, 0x00, 0x00 }; | |
51 | ||
a03bd320 | 52 | struct elf64_hppa_link_hash_entry |
15bda425 | 53 | { |
a03bd320 | 54 | struct elf_link_hash_entry eh; |
15bda425 JL |
55 | |
56 | /* Offsets for this symbol in various linker sections. */ | |
57 | bfd_vma dlt_offset; | |
58 | bfd_vma plt_offset; | |
59 | bfd_vma opd_offset; | |
60 | bfd_vma stub_offset; | |
61 | ||
15bda425 JL |
62 | /* The index of the (possibly local) symbol in the input bfd and its |
63 | associated BFD. Needed so that we can have relocs against local | |
64 | symbols in shared libraries. */ | |
dc810e39 | 65 | long sym_indx; |
15bda425 JL |
66 | bfd *owner; |
67 | ||
68 | /* Dynamic symbols may need to have two different values. One for | |
69 | the dynamic symbol table, one for the normal symbol table. | |
70 | ||
71 | In such cases we store the symbol's real value and section | |
72 | index here so we can restore the real value before we write | |
73 | the normal symbol table. */ | |
74 | bfd_vma st_value; | |
75 | int st_shndx; | |
76 | ||
77 | /* Used to count non-got, non-plt relocations for delayed sizing | |
78 | of relocation sections. */ | |
79 | struct elf64_hppa_dyn_reloc_entry | |
80 | { | |
81 | /* Next relocation in the chain. */ | |
82 | struct elf64_hppa_dyn_reloc_entry *next; | |
83 | ||
84 | /* The type of the relocation. */ | |
85 | int type; | |
86 | ||
87 | /* The input section of the relocation. */ | |
88 | asection *sec; | |
89 | ||
a03bd320 DA |
90 | /* Number of relocs copied in this section. */ |
91 | bfd_size_type count; | |
92 | ||
15bda425 JL |
93 | /* The index of the section symbol for the input section of |
94 | the relocation. Only needed when building shared libraries. */ | |
95 | int sec_symndx; | |
96 | ||
97 | /* The offset within the input section of the relocation. */ | |
98 | bfd_vma offset; | |
99 | ||
100 | /* The addend for the relocation. */ | |
101 | bfd_vma addend; | |
102 | ||
103 | } *reloc_entries; | |
104 | ||
105 | /* Nonzero if this symbol needs an entry in one of the linker | |
106 | sections. */ | |
107 | unsigned want_dlt; | |
108 | unsigned want_plt; | |
109 | unsigned want_opd; | |
110 | unsigned want_stub; | |
111 | }; | |
112 | ||
15bda425 JL |
113 | struct elf64_hppa_link_hash_table |
114 | { | |
115 | struct elf_link_hash_table root; | |
116 | ||
117 | /* Shortcuts to get to the various linker defined sections. */ | |
118 | asection *dlt_sec; | |
119 | asection *dlt_rel_sec; | |
120 | asection *plt_sec; | |
121 | asection *plt_rel_sec; | |
122 | asection *opd_sec; | |
123 | asection *opd_rel_sec; | |
124 | asection *other_rel_sec; | |
125 | ||
126 | /* Offset of __gp within .plt section. When the PLT gets large we want | |
127 | to slide __gp into the PLT section so that we can continue to use | |
128 | single DP relative instructions to load values out of the PLT. */ | |
129 | bfd_vma gp_offset; | |
130 | ||
131 | /* Note this is not strictly correct. We should create a stub section for | |
132 | each input section with calls. The stub section should be placed before | |
133 | the section with the call. */ | |
134 | asection *stub_sec; | |
135 | ||
136 | bfd_vma text_segment_base; | |
137 | bfd_vma data_segment_base; | |
138 | ||
15bda425 JL |
139 | /* We build tables to map from an input section back to its |
140 | symbol index. This is the BFD for which we currently have | |
141 | a map. */ | |
142 | bfd *section_syms_bfd; | |
143 | ||
144 | /* Array of symbol numbers for each input section attached to the | |
145 | current BFD. */ | |
146 | int *section_syms; | |
147 | }; | |
148 | ||
a03bd320 | 149 | #define hppa_link_hash_table(p) \ |
4dfe6ac6 NC |
150 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
151 | == HPPA64_ELF_DATA ? ((struct elf64_hppa_link_hash_table *) ((p)->hash)) : NULL) | |
15bda425 | 152 | |
a03bd320 DA |
153 | #define hppa_elf_hash_entry(ent) \ |
154 | ((struct elf64_hppa_link_hash_entry *)(ent)) | |
155 | ||
156 | #define eh_name(eh) \ | |
157 | (eh ? eh->root.root.string : "<undef>") | |
158 | ||
15bda425 | 159 | typedef struct bfd_hash_entry *(*new_hash_entry_func) |
813c8a3c | 160 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); |
15bda425 | 161 | |
15bda425 | 162 | static struct bfd_link_hash_table *elf64_hppa_hash_table_create |
813c8a3c DA |
163 | (bfd *abfd); |
164 | ||
15bda425 JL |
165 | /* This must follow the definitions of the various derived linker |
166 | hash tables and shared functions. */ | |
167 | #include "elf-hppa.h" | |
168 | ||
b34976b6 | 169 | static bfd_boolean elf64_hppa_object_p |
813c8a3c | 170 | (bfd *); |
15bda425 | 171 | |
15bda425 | 172 | static void elf64_hppa_post_process_headers |
813c8a3c | 173 | (bfd *, struct bfd_link_info *); |
15bda425 | 174 | |
b34976b6 | 175 | static bfd_boolean elf64_hppa_create_dynamic_sections |
813c8a3c | 176 | (bfd *, struct bfd_link_info *); |
15bda425 | 177 | |
b34976b6 | 178 | static bfd_boolean elf64_hppa_adjust_dynamic_symbol |
813c8a3c | 179 | (struct bfd_link_info *, struct elf_link_hash_entry *); |
15bda425 | 180 | |
b34976b6 | 181 | static bfd_boolean elf64_hppa_mark_milli_and_exported_functions |
813c8a3c | 182 | (struct elf_link_hash_entry *, void *); |
47b7c2db | 183 | |
b34976b6 | 184 | static bfd_boolean elf64_hppa_size_dynamic_sections |
813c8a3c | 185 | (bfd *, struct bfd_link_info *); |
15bda425 | 186 | |
6e0b88f1 | 187 | static int elf64_hppa_link_output_symbol_hook |
813c8a3c DA |
188 | (struct bfd_link_info *, const char *, Elf_Internal_Sym *, |
189 | asection *, struct elf_link_hash_entry *); | |
99c79b2e | 190 | |
b34976b6 | 191 | static bfd_boolean elf64_hppa_finish_dynamic_symbol |
813c8a3c DA |
192 | (bfd *, struct bfd_link_info *, |
193 | struct elf_link_hash_entry *, Elf_Internal_Sym *); | |
fe8bc63d | 194 | |
b34976b6 | 195 | static bfd_boolean elf64_hppa_finish_dynamic_sections |
813c8a3c | 196 | (bfd *, struct bfd_link_info *); |
15bda425 | 197 | |
b34976b6 | 198 | static bfd_boolean elf64_hppa_check_relocs |
813c8a3c DA |
199 | (bfd *, struct bfd_link_info *, |
200 | asection *, const Elf_Internal_Rela *); | |
15bda425 | 201 | |
b34976b6 | 202 | static bfd_boolean elf64_hppa_dynamic_symbol_p |
813c8a3c | 203 | (struct elf_link_hash_entry *, struct bfd_link_info *); |
15bda425 | 204 | |
b34976b6 | 205 | static bfd_boolean elf64_hppa_mark_exported_functions |
813c8a3c | 206 | (struct elf_link_hash_entry *, void *); |
15bda425 | 207 | |
b34976b6 | 208 | static bfd_boolean elf64_hppa_finalize_opd |
a03bd320 | 209 | (struct elf_link_hash_entry *, void *); |
15bda425 | 210 | |
b34976b6 | 211 | static bfd_boolean elf64_hppa_finalize_dlt |
a03bd320 | 212 | (struct elf_link_hash_entry *, void *); |
15bda425 | 213 | |
b34976b6 | 214 | static bfd_boolean allocate_global_data_dlt |
a03bd320 | 215 | (struct elf_link_hash_entry *, void *); |
15bda425 | 216 | |
b34976b6 | 217 | static bfd_boolean allocate_global_data_plt |
a03bd320 | 218 | (struct elf_link_hash_entry *, void *); |
15bda425 | 219 | |
b34976b6 | 220 | static bfd_boolean allocate_global_data_stub |
a03bd320 | 221 | (struct elf_link_hash_entry *, void *); |
15bda425 | 222 | |
b34976b6 | 223 | static bfd_boolean allocate_global_data_opd |
a03bd320 | 224 | (struct elf_link_hash_entry *, void *); |
15bda425 | 225 | |
b34976b6 | 226 | static bfd_boolean get_reloc_section |
813c8a3c | 227 | (bfd *, struct elf64_hppa_link_hash_table *, asection *); |
15bda425 | 228 | |
b34976b6 | 229 | static bfd_boolean count_dyn_reloc |
a03bd320 | 230 | (bfd *, struct elf64_hppa_link_hash_entry *, |
813c8a3c | 231 | int, asection *, int, bfd_vma, bfd_vma); |
15bda425 | 232 | |
b34976b6 | 233 | static bfd_boolean allocate_dynrel_entries |
a03bd320 | 234 | (struct elf_link_hash_entry *, void *); |
15bda425 | 235 | |
b34976b6 | 236 | static bfd_boolean elf64_hppa_finalize_dynreloc |
a03bd320 | 237 | (struct elf_link_hash_entry *, void *); |
15bda425 | 238 | |
b34976b6 | 239 | static bfd_boolean get_opd |
813c8a3c | 240 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 241 | |
b34976b6 | 242 | static bfd_boolean get_plt |
813c8a3c | 243 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 244 | |
b34976b6 | 245 | static bfd_boolean get_dlt |
813c8a3c | 246 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 247 | |
b34976b6 | 248 | static bfd_boolean get_stub |
813c8a3c | 249 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 250 | |
3fab46d0 | 251 | static int elf64_hppa_elf_get_symbol_type |
813c8a3c | 252 | (Elf_Internal_Sym *, int); |
3fab46d0 | 253 | |
a03bd320 | 254 | /* Initialize an entry in the link hash table. */ |
15bda425 | 255 | |
a03bd320 DA |
256 | static struct bfd_hash_entry * |
257 | hppa64_link_hash_newfunc (struct bfd_hash_entry *entry, | |
258 | struct bfd_hash_table *table, | |
259 | const char *string) | |
15bda425 | 260 | { |
15bda425 JL |
261 | /* Allocate the structure if it has not already been allocated by a |
262 | subclass. */ | |
a03bd320 DA |
263 | if (entry == NULL) |
264 | { | |
265 | entry = bfd_hash_allocate (table, | |
266 | sizeof (struct elf64_hppa_link_hash_entry)); | |
267 | if (entry == NULL) | |
268 | return entry; | |
269 | } | |
15bda425 | 270 | |
15bda425 | 271 | /* Call the allocation method of the superclass. */ |
a03bd320 DA |
272 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
273 | if (entry != NULL) | |
274 | { | |
275 | struct elf64_hppa_link_hash_entry *hh; | |
15bda425 | 276 | |
a03bd320 DA |
277 | /* Initialize our local data. All zeros. */ |
278 | hh = hppa_elf_hash_entry (entry); | |
279 | memset (&hh->dlt_offset, 0, | |
280 | (sizeof (struct elf64_hppa_link_hash_entry) | |
281 | - offsetof (struct elf64_hppa_link_hash_entry, dlt_offset))); | |
282 | } | |
336549c1 | 283 | |
a03bd320 | 284 | return entry; |
15bda425 JL |
285 | } |
286 | ||
287 | /* Create the derived linker hash table. The PA64 ELF port uses this | |
288 | derived hash table to keep information specific to the PA ElF | |
289 | linker (without using static variables). */ | |
290 | ||
291 | static struct bfd_link_hash_table* | |
813c8a3c | 292 | elf64_hppa_hash_table_create (bfd *abfd) |
15bda425 | 293 | { |
a03bd320 DA |
294 | struct elf64_hppa_link_hash_table *htab; |
295 | bfd_size_type amt = sizeof (*htab); | |
15bda425 | 296 | |
22cdc249 | 297 | htab = bfd_zmalloc (amt); |
a03bd320 DA |
298 | if (htab == NULL) |
299 | return NULL; | |
15bda425 | 300 | |
a03bd320 DA |
301 | if (!_bfd_elf_link_hash_table_init (&htab->root, abfd, |
302 | hppa64_link_hash_newfunc, | |
4dfe6ac6 NC |
303 | sizeof (struct elf64_hppa_link_hash_entry), |
304 | HPPA64_ELF_DATA)) | |
a03bd320 | 305 | { |
22cdc249 | 306 | free (htab); |
a03bd320 DA |
307 | return NULL; |
308 | } | |
15bda425 | 309 | |
a03bd320 DA |
310 | htab->text_segment_base = (bfd_vma) -1; |
311 | htab->data_segment_base = (bfd_vma) -1; | |
15bda425 | 312 | |
a03bd320 | 313 | return &htab->root.root; |
15bda425 JL |
314 | } |
315 | \f | |
316 | /* Return nonzero if ABFD represents a PA2.0 ELF64 file. | |
317 | ||
318 | Additionally we set the default architecture and machine. */ | |
b34976b6 | 319 | static bfd_boolean |
813c8a3c | 320 | elf64_hppa_object_p (bfd *abfd) |
15bda425 | 321 | { |
24a5e751 L |
322 | Elf_Internal_Ehdr * i_ehdrp; |
323 | unsigned int flags; | |
d9634ba1 | 324 | |
24a5e751 L |
325 | i_ehdrp = elf_elfheader (abfd); |
326 | if (strcmp (bfd_get_target (abfd), "elf64-hppa-linux") == 0) | |
327 | { | |
9c55345c | 328 | /* GCC on hppa-linux produces binaries with OSABI=GNU, |
6c21aa76 | 329 | but the kernel produces corefiles with OSABI=SysV. */ |
9c55345c | 330 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU |
d97a8924 | 331 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ |
b34976b6 | 332 | return FALSE; |
24a5e751 L |
333 | } |
334 | else | |
335 | { | |
d97a8924 DA |
336 | /* HPUX produces binaries with OSABI=HPUX, |
337 | but the kernel produces corefiles with OSABI=SysV. */ | |
338 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX | |
339 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ | |
b34976b6 | 340 | return FALSE; |
24a5e751 L |
341 | } |
342 | ||
343 | flags = i_ehdrp->e_flags; | |
d9634ba1 AM |
344 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
345 | { | |
346 | case EFA_PARISC_1_0: | |
347 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
348 | case EFA_PARISC_1_1: | |
349 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
350 | case EFA_PARISC_2_0: | |
d97a8924 DA |
351 | if (i_ehdrp->e_ident[EI_CLASS] == ELFCLASS64) |
352 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
353 | else | |
354 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
d9634ba1 AM |
355 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: |
356 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
357 | } | |
358 | /* Don't be fussy. */ | |
b34976b6 | 359 | return TRUE; |
15bda425 JL |
360 | } |
361 | ||
362 | /* Given section type (hdr->sh_type), return a boolean indicating | |
363 | whether or not the section is an elf64-hppa specific section. */ | |
b34976b6 | 364 | static bfd_boolean |
6dc132d9 L |
365 | elf64_hppa_section_from_shdr (bfd *abfd, |
366 | Elf_Internal_Shdr *hdr, | |
367 | const char *name, | |
368 | int shindex) | |
15bda425 | 369 | { |
15bda425 JL |
370 | switch (hdr->sh_type) |
371 | { | |
372 | case SHT_PARISC_EXT: | |
373 | if (strcmp (name, ".PARISC.archext") != 0) | |
b34976b6 | 374 | return FALSE; |
15bda425 JL |
375 | break; |
376 | case SHT_PARISC_UNWIND: | |
377 | if (strcmp (name, ".PARISC.unwind") != 0) | |
b34976b6 | 378 | return FALSE; |
15bda425 JL |
379 | break; |
380 | case SHT_PARISC_DOC: | |
381 | case SHT_PARISC_ANNOT: | |
382 | default: | |
b34976b6 | 383 | return FALSE; |
15bda425 JL |
384 | } |
385 | ||
6dc132d9 | 386 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
b34976b6 | 387 | return FALSE; |
15bda425 | 388 | |
b34976b6 | 389 | return TRUE; |
15bda425 JL |
390 | } |
391 | ||
15bda425 JL |
392 | /* SEC is a section containing relocs for an input BFD when linking; return |
393 | a suitable section for holding relocs in the output BFD for a link. */ | |
394 | ||
b34976b6 | 395 | static bfd_boolean |
813c8a3c DA |
396 | get_reloc_section (bfd *abfd, |
397 | struct elf64_hppa_link_hash_table *hppa_info, | |
398 | asection *sec) | |
15bda425 JL |
399 | { |
400 | const char *srel_name; | |
401 | asection *srel; | |
402 | bfd *dynobj; | |
403 | ||
404 | srel_name = (bfd_elf_string_from_elf_section | |
405 | (abfd, elf_elfheader(abfd)->e_shstrndx, | |
d4730f92 | 406 | _bfd_elf_single_rel_hdr(sec)->sh_name)); |
15bda425 | 407 | if (srel_name == NULL) |
b34976b6 | 408 | return FALSE; |
15bda425 | 409 | |
15bda425 JL |
410 | dynobj = hppa_info->root.dynobj; |
411 | if (!dynobj) | |
412 | hppa_info->root.dynobj = dynobj = abfd; | |
413 | ||
3d4d4302 | 414 | srel = bfd_get_linker_section (dynobj, srel_name); |
15bda425 JL |
415 | if (srel == NULL) |
416 | { | |
3d4d4302 AM |
417 | srel = bfd_make_section_anyway_with_flags (dynobj, srel_name, |
418 | (SEC_ALLOC | |
419 | | SEC_LOAD | |
420 | | SEC_HAS_CONTENTS | |
421 | | SEC_IN_MEMORY | |
422 | | SEC_LINKER_CREATED | |
423 | | SEC_READONLY)); | |
15bda425 | 424 | if (srel == NULL |
15bda425 | 425 | || !bfd_set_section_alignment (dynobj, srel, 3)) |
b34976b6 | 426 | return FALSE; |
15bda425 JL |
427 | } |
428 | ||
429 | hppa_info->other_rel_sec = srel; | |
b34976b6 | 430 | return TRUE; |
15bda425 JL |
431 | } |
432 | ||
fe8bc63d | 433 | /* Add a new entry to the list of dynamic relocations against DYN_H. |
15bda425 JL |
434 | |
435 | We use this to keep a record of all the FPTR relocations against a | |
436 | particular symbol so that we can create FPTR relocations in the | |
437 | output file. */ | |
438 | ||
b34976b6 | 439 | static bfd_boolean |
813c8a3c | 440 | count_dyn_reloc (bfd *abfd, |
a03bd320 | 441 | struct elf64_hppa_link_hash_entry *hh, |
813c8a3c DA |
442 | int type, |
443 | asection *sec, | |
444 | int sec_symndx, | |
445 | bfd_vma offset, | |
446 | bfd_vma addend) | |
15bda425 JL |
447 | { |
448 | struct elf64_hppa_dyn_reloc_entry *rent; | |
449 | ||
450 | rent = (struct elf64_hppa_dyn_reloc_entry *) | |
dc810e39 | 451 | bfd_alloc (abfd, (bfd_size_type) sizeof (*rent)); |
15bda425 | 452 | if (!rent) |
b34976b6 | 453 | return FALSE; |
15bda425 | 454 | |
a03bd320 | 455 | rent->next = hh->reloc_entries; |
15bda425 JL |
456 | rent->type = type; |
457 | rent->sec = sec; | |
458 | rent->sec_symndx = sec_symndx; | |
459 | rent->offset = offset; | |
460 | rent->addend = addend; | |
a03bd320 | 461 | hh->reloc_entries = rent; |
15bda425 | 462 | |
b34976b6 | 463 | return TRUE; |
15bda425 JL |
464 | } |
465 | ||
a03bd320 DA |
466 | /* Return a pointer to the local DLT, PLT and OPD reference counts |
467 | for ABFD. Returns NULL if the storage allocation fails. */ | |
468 | ||
469 | static bfd_signed_vma * | |
470 | hppa64_elf_local_refcounts (bfd *abfd) | |
471 | { | |
472 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
473 | bfd_signed_vma *local_refcounts; | |
68ffbac6 | 474 | |
a03bd320 DA |
475 | local_refcounts = elf_local_got_refcounts (abfd); |
476 | if (local_refcounts == NULL) | |
477 | { | |
478 | bfd_size_type size; | |
479 | ||
480 | /* Allocate space for local DLT, PLT and OPD reference | |
481 | counts. Done this way to save polluting elf_obj_tdata | |
482 | with another target specific pointer. */ | |
483 | size = symtab_hdr->sh_info; | |
484 | size *= 3 * sizeof (bfd_signed_vma); | |
485 | local_refcounts = bfd_zalloc (abfd, size); | |
486 | elf_local_got_refcounts (abfd) = local_refcounts; | |
487 | } | |
488 | return local_refcounts; | |
489 | } | |
490 | ||
15bda425 JL |
491 | /* Scan the RELOCS and record the type of dynamic entries that each |
492 | referenced symbol needs. */ | |
493 | ||
b34976b6 | 494 | static bfd_boolean |
813c8a3c DA |
495 | elf64_hppa_check_relocs (bfd *abfd, |
496 | struct bfd_link_info *info, | |
497 | asection *sec, | |
498 | const Elf_Internal_Rela *relocs) | |
15bda425 JL |
499 | { |
500 | struct elf64_hppa_link_hash_table *hppa_info; | |
501 | const Elf_Internal_Rela *relend; | |
502 | Elf_Internal_Shdr *symtab_hdr; | |
503 | const Elf_Internal_Rela *rel; | |
4fbb74a6 | 504 | unsigned int sec_symndx; |
15bda425 | 505 | |
0e1862bb | 506 | if (bfd_link_relocatable (info)) |
b34976b6 | 507 | return TRUE; |
15bda425 JL |
508 | |
509 | /* If this is the first dynamic object found in the link, create | |
510 | the special sections required for dynamic linking. */ | |
511 | if (! elf_hash_table (info)->dynamic_sections_created) | |
512 | { | |
45d6a902 | 513 | if (! _bfd_elf_link_create_dynamic_sections (abfd, info)) |
b34976b6 | 514 | return FALSE; |
15bda425 JL |
515 | } |
516 | ||
a03bd320 | 517 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
518 | if (hppa_info == NULL) |
519 | return FALSE; | |
15bda425 JL |
520 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
521 | ||
522 | /* If necessary, build a new table holding section symbols indices | |
6cdc0ccc | 523 | for this BFD. */ |
fe8bc63d | 524 | |
0e1862bb | 525 | if (bfd_link_pic (info) && hppa_info->section_syms_bfd != abfd) |
15bda425 | 526 | { |
832d951b | 527 | unsigned long i; |
9ad5cbcf | 528 | unsigned int highest_shndx; |
6cdc0ccc AM |
529 | Elf_Internal_Sym *local_syms = NULL; |
530 | Elf_Internal_Sym *isym, *isymend; | |
dc810e39 | 531 | bfd_size_type amt; |
15bda425 JL |
532 | |
533 | /* We're done with the old cache of section index to section symbol | |
534 | index information. Free it. | |
535 | ||
536 | ?!? Note we leak the last section_syms array. Presumably we | |
537 | could free it in one of the later routines in this file. */ | |
538 | if (hppa_info->section_syms) | |
539 | free (hppa_info->section_syms); | |
540 | ||
6cdc0ccc AM |
541 | /* Read this BFD's local symbols. */ |
542 | if (symtab_hdr->sh_info != 0) | |
47b7c2db | 543 | { |
6cdc0ccc AM |
544 | local_syms = (Elf_Internal_Sym *) symtab_hdr->contents; |
545 | if (local_syms == NULL) | |
546 | local_syms = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
547 | symtab_hdr->sh_info, 0, | |
548 | NULL, NULL, NULL); | |
549 | if (local_syms == NULL) | |
b34976b6 | 550 | return FALSE; |
9ad5cbcf AM |
551 | } |
552 | ||
6cdc0ccc | 553 | /* Record the highest section index referenced by the local symbols. */ |
15bda425 | 554 | highest_shndx = 0; |
6cdc0ccc AM |
555 | isymend = local_syms + symtab_hdr->sh_info; |
556 | for (isym = local_syms; isym < isymend; isym++) | |
15bda425 | 557 | { |
4fbb74a6 AM |
558 | if (isym->st_shndx > highest_shndx |
559 | && isym->st_shndx < SHN_LORESERVE) | |
15bda425 JL |
560 | highest_shndx = isym->st_shndx; |
561 | } | |
562 | ||
15bda425 JL |
563 | /* Allocate an array to hold the section index to section symbol index |
564 | mapping. Bump by one since we start counting at zero. */ | |
565 | highest_shndx++; | |
dc810e39 AM |
566 | amt = highest_shndx; |
567 | amt *= sizeof (int); | |
568 | hppa_info->section_syms = (int *) bfd_malloc (amt); | |
15bda425 JL |
569 | |
570 | /* Now walk the local symbols again. If we find a section symbol, | |
571 | record the index of the symbol into the section_syms array. */ | |
6cdc0ccc | 572 | for (i = 0, isym = local_syms; isym < isymend; i++, isym++) |
15bda425 JL |
573 | { |
574 | if (ELF_ST_TYPE (isym->st_info) == STT_SECTION) | |
575 | hppa_info->section_syms[isym->st_shndx] = i; | |
576 | } | |
577 | ||
6cdc0ccc AM |
578 | /* We are finished with the local symbols. */ |
579 | if (local_syms != NULL | |
580 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
581 | { | |
582 | if (! info->keep_memory) | |
583 | free (local_syms); | |
584 | else | |
585 | { | |
586 | /* Cache the symbols for elf_link_input_bfd. */ | |
587 | symtab_hdr->contents = (unsigned char *) local_syms; | |
588 | } | |
589 | } | |
15bda425 JL |
590 | |
591 | /* Record which BFD we built the section_syms mapping for. */ | |
592 | hppa_info->section_syms_bfd = abfd; | |
593 | } | |
594 | ||
595 | /* Record the symbol index for this input section. We may need it for | |
596 | relocations when building shared libraries. When not building shared | |
597 | libraries this value is never really used, but assign it to zero to | |
598 | prevent out of bounds memory accesses in other routines. */ | |
0e1862bb | 599 | if (bfd_link_pic (info)) |
15bda425 JL |
600 | { |
601 | sec_symndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
602 | ||
603 | /* If we did not find a section symbol for this section, then | |
604 | something went terribly wrong above. */ | |
4fbb74a6 | 605 | if (sec_symndx == SHN_BAD) |
b34976b6 | 606 | return FALSE; |
15bda425 | 607 | |
4fbb74a6 AM |
608 | if (sec_symndx < SHN_LORESERVE) |
609 | sec_symndx = hppa_info->section_syms[sec_symndx]; | |
610 | else | |
611 | sec_symndx = 0; | |
15bda425 JL |
612 | } |
613 | else | |
614 | sec_symndx = 0; | |
fe8bc63d | 615 | |
15bda425 JL |
616 | relend = relocs + sec->reloc_count; |
617 | for (rel = relocs; rel < relend; ++rel) | |
618 | { | |
560e09e9 NC |
619 | enum |
620 | { | |
621 | NEED_DLT = 1, | |
622 | NEED_PLT = 2, | |
623 | NEED_STUB = 4, | |
624 | NEED_OPD = 8, | |
625 | NEED_DYNREL = 16, | |
626 | }; | |
15bda425 | 627 | |
15bda425 | 628 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); |
a03bd320 | 629 | struct elf64_hppa_link_hash_entry *hh; |
15bda425 | 630 | int need_entry; |
b34976b6 | 631 | bfd_boolean maybe_dynamic; |
15bda425 JL |
632 | int dynrel_type = R_PARISC_NONE; |
633 | static reloc_howto_type *howto; | |
634 | ||
635 | if (r_symndx >= symtab_hdr->sh_info) | |
636 | { | |
637 | /* We're dealing with a global symbol -- find its hash entry | |
638 | and mark it as being referenced. */ | |
639 | long indx = r_symndx - symtab_hdr->sh_info; | |
a03bd320 DA |
640 | hh = hppa_elf_hash_entry (elf_sym_hashes (abfd)[indx]); |
641 | while (hh->eh.root.type == bfd_link_hash_indirect | |
642 | || hh->eh.root.type == bfd_link_hash_warning) | |
643 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
15bda425 | 644 | |
81fbe831 AM |
645 | /* PR15323, ref flags aren't set for references in the same |
646 | object. */ | |
a03bd320 | 647 | hh->eh.ref_regular = 1; |
15bda425 | 648 | } |
a03bd320 DA |
649 | else |
650 | hh = NULL; | |
15bda425 JL |
651 | |
652 | /* We can only get preliminary data on whether a symbol is | |
653 | locally or externally defined, as not all of the input files | |
654 | have yet been processed. Do something with what we know, as | |
655 | this may help reduce memory usage and processing time later. */ | |
b34976b6 | 656 | maybe_dynamic = FALSE; |
0e1862bb | 657 | if (hh && ((bfd_link_pic (info) |
f5385ebf AM |
658 | && (!info->symbolic |
659 | || info->unresolved_syms_in_shared_libs == RM_IGNORE)) | |
a03bd320 DA |
660 | || !hh->eh.def_regular |
661 | || hh->eh.root.type == bfd_link_hash_defweak)) | |
b34976b6 | 662 | maybe_dynamic = TRUE; |
15bda425 JL |
663 | |
664 | howto = elf_hppa_howto_table + ELF64_R_TYPE (rel->r_info); | |
665 | need_entry = 0; | |
666 | switch (howto->type) | |
667 | { | |
668 | /* These are simple indirect references to symbols through the | |
669 | DLT. We need to create a DLT entry for any symbols which | |
670 | appears in a DLTIND relocation. */ | |
671 | case R_PARISC_DLTIND21L: | |
672 | case R_PARISC_DLTIND14R: | |
673 | case R_PARISC_DLTIND14F: | |
674 | case R_PARISC_DLTIND14WR: | |
675 | case R_PARISC_DLTIND14DR: | |
676 | need_entry = NEED_DLT; | |
677 | break; | |
678 | ||
679 | /* ?!? These need a DLT entry. But I have no idea what to do with | |
680 | the "link time TP value. */ | |
681 | case R_PARISC_LTOFF_TP21L: | |
682 | case R_PARISC_LTOFF_TP14R: | |
683 | case R_PARISC_LTOFF_TP14F: | |
684 | case R_PARISC_LTOFF_TP64: | |
685 | case R_PARISC_LTOFF_TP14WR: | |
686 | case R_PARISC_LTOFF_TP14DR: | |
687 | case R_PARISC_LTOFF_TP16F: | |
688 | case R_PARISC_LTOFF_TP16WF: | |
689 | case R_PARISC_LTOFF_TP16DF: | |
690 | need_entry = NEED_DLT; | |
691 | break; | |
692 | ||
693 | /* These are function calls. Depending on their precise target we | |
694 | may need to make a stub for them. The stub uses the PLT, so we | |
695 | need to create PLT entries for these symbols too. */ | |
832d951b | 696 | case R_PARISC_PCREL12F: |
15bda425 JL |
697 | case R_PARISC_PCREL17F: |
698 | case R_PARISC_PCREL22F: | |
699 | case R_PARISC_PCREL32: | |
700 | case R_PARISC_PCREL64: | |
701 | case R_PARISC_PCREL21L: | |
702 | case R_PARISC_PCREL17R: | |
703 | case R_PARISC_PCREL17C: | |
704 | case R_PARISC_PCREL14R: | |
705 | case R_PARISC_PCREL14F: | |
706 | case R_PARISC_PCREL22C: | |
707 | case R_PARISC_PCREL14WR: | |
708 | case R_PARISC_PCREL14DR: | |
709 | case R_PARISC_PCREL16F: | |
710 | case R_PARISC_PCREL16WF: | |
711 | case R_PARISC_PCREL16DF: | |
a03bd320 DA |
712 | /* Function calls might need to go through the .plt, and |
713 | might need a long branch stub. */ | |
714 | if (hh != NULL && hh->eh.type != STT_PARISC_MILLI) | |
715 | need_entry = (NEED_PLT | NEED_STUB); | |
716 | else | |
717 | need_entry = 0; | |
15bda425 JL |
718 | break; |
719 | ||
720 | case R_PARISC_PLTOFF21L: | |
721 | case R_PARISC_PLTOFF14R: | |
722 | case R_PARISC_PLTOFF14F: | |
723 | case R_PARISC_PLTOFF14WR: | |
724 | case R_PARISC_PLTOFF14DR: | |
725 | case R_PARISC_PLTOFF16F: | |
726 | case R_PARISC_PLTOFF16WF: | |
727 | case R_PARISC_PLTOFF16DF: | |
728 | need_entry = (NEED_PLT); | |
729 | break; | |
730 | ||
731 | case R_PARISC_DIR64: | |
0e1862bb | 732 | if (bfd_link_pic (info) || maybe_dynamic) |
15bda425 JL |
733 | need_entry = (NEED_DYNREL); |
734 | dynrel_type = R_PARISC_DIR64; | |
735 | break; | |
736 | ||
737 | /* This is an indirect reference through the DLT to get the address | |
738 | of a OPD descriptor. Thus we need to make a DLT entry that points | |
739 | to an OPD entry. */ | |
740 | case R_PARISC_LTOFF_FPTR21L: | |
741 | case R_PARISC_LTOFF_FPTR14R: | |
742 | case R_PARISC_LTOFF_FPTR14WR: | |
743 | case R_PARISC_LTOFF_FPTR14DR: | |
744 | case R_PARISC_LTOFF_FPTR32: | |
745 | case R_PARISC_LTOFF_FPTR64: | |
746 | case R_PARISC_LTOFF_FPTR16F: | |
747 | case R_PARISC_LTOFF_FPTR16WF: | |
748 | case R_PARISC_LTOFF_FPTR16DF: | |
0e1862bb | 749 | if (bfd_link_pic (info) || maybe_dynamic) |
a03bd320 | 750 | need_entry = (NEED_DLT | NEED_OPD | NEED_PLT); |
15bda425 | 751 | else |
a03bd320 | 752 | need_entry = (NEED_DLT | NEED_OPD | NEED_PLT); |
15bda425 JL |
753 | dynrel_type = R_PARISC_FPTR64; |
754 | break; | |
755 | ||
756 | /* This is a simple OPD entry. */ | |
757 | case R_PARISC_FPTR64: | |
0e1862bb | 758 | if (bfd_link_pic (info) || maybe_dynamic) |
a03bd320 | 759 | need_entry = (NEED_OPD | NEED_PLT | NEED_DYNREL); |
15bda425 | 760 | else |
a03bd320 | 761 | need_entry = (NEED_OPD | NEED_PLT); |
15bda425 JL |
762 | dynrel_type = R_PARISC_FPTR64; |
763 | break; | |
764 | ||
765 | /* Add more cases as needed. */ | |
766 | } | |
767 | ||
768 | if (!need_entry) | |
769 | continue; | |
770 | ||
a03bd320 DA |
771 | if (hh) |
772 | { | |
773 | /* Stash away enough information to be able to find this symbol | |
774 | regardless of whether or not it is local or global. */ | |
775 | hh->owner = abfd; | |
776 | hh->sym_indx = r_symndx; | |
777 | } | |
15bda425 | 778 | |
15bda425 JL |
779 | /* Create what's needed. */ |
780 | if (need_entry & NEED_DLT) | |
781 | { | |
a03bd320 DA |
782 | /* Allocate space for a DLT entry, as well as a dynamic |
783 | relocation for this entry. */ | |
15bda425 JL |
784 | if (! hppa_info->dlt_sec |
785 | && ! get_dlt (abfd, info, hppa_info)) | |
786 | goto err_out; | |
a03bd320 DA |
787 | |
788 | if (hh != NULL) | |
789 | { | |
790 | hh->want_dlt = 1; | |
791 | hh->eh.got.refcount += 1; | |
792 | } | |
793 | else | |
794 | { | |
795 | bfd_signed_vma *local_dlt_refcounts; | |
68ffbac6 | 796 | |
a03bd320 DA |
797 | /* This is a DLT entry for a local symbol. */ |
798 | local_dlt_refcounts = hppa64_elf_local_refcounts (abfd); | |
799 | if (local_dlt_refcounts == NULL) | |
800 | return FALSE; | |
801 | local_dlt_refcounts[r_symndx] += 1; | |
802 | } | |
15bda425 JL |
803 | } |
804 | ||
805 | if (need_entry & NEED_PLT) | |
806 | { | |
807 | if (! hppa_info->plt_sec | |
808 | && ! get_plt (abfd, info, hppa_info)) | |
809 | goto err_out; | |
a03bd320 DA |
810 | |
811 | if (hh != NULL) | |
812 | { | |
813 | hh->want_plt = 1; | |
814 | hh->eh.needs_plt = 1; | |
815 | hh->eh.plt.refcount += 1; | |
816 | } | |
817 | else | |
818 | { | |
819 | bfd_signed_vma *local_dlt_refcounts; | |
820 | bfd_signed_vma *local_plt_refcounts; | |
68ffbac6 | 821 | |
a03bd320 DA |
822 | /* This is a PLT entry for a local symbol. */ |
823 | local_dlt_refcounts = hppa64_elf_local_refcounts (abfd); | |
824 | if (local_dlt_refcounts == NULL) | |
825 | return FALSE; | |
826 | local_plt_refcounts = local_dlt_refcounts + symtab_hdr->sh_info; | |
827 | local_plt_refcounts[r_symndx] += 1; | |
828 | } | |
15bda425 JL |
829 | } |
830 | ||
831 | if (need_entry & NEED_STUB) | |
832 | { | |
833 | if (! hppa_info->stub_sec | |
834 | && ! get_stub (abfd, info, hppa_info)) | |
835 | goto err_out; | |
a03bd320 DA |
836 | if (hh) |
837 | hh->want_stub = 1; | |
15bda425 JL |
838 | } |
839 | ||
840 | if (need_entry & NEED_OPD) | |
841 | { | |
842 | if (! hppa_info->opd_sec | |
843 | && ! get_opd (abfd, info, hppa_info)) | |
844 | goto err_out; | |
845 | ||
a03bd320 DA |
846 | /* FPTRs are not allocated by the dynamic linker for PA64, |
847 | though it is possible that will change in the future. */ | |
fe8bc63d | 848 | |
a03bd320 DA |
849 | if (hh != NULL) |
850 | hh->want_opd = 1; | |
851 | else | |
852 | { | |
853 | bfd_signed_vma *local_dlt_refcounts; | |
854 | bfd_signed_vma *local_opd_refcounts; | |
68ffbac6 | 855 | |
a03bd320 DA |
856 | /* This is a OPD for a local symbol. */ |
857 | local_dlt_refcounts = hppa64_elf_local_refcounts (abfd); | |
858 | if (local_dlt_refcounts == NULL) | |
859 | return FALSE; | |
860 | local_opd_refcounts = (local_dlt_refcounts | |
861 | + 2 * symtab_hdr->sh_info); | |
862 | local_opd_refcounts[r_symndx] += 1; | |
863 | } | |
15bda425 JL |
864 | } |
865 | ||
866 | /* Add a new dynamic relocation to the chain of dynamic | |
867 | relocations for this symbol. */ | |
868 | if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC)) | |
869 | { | |
870 | if (! hppa_info->other_rel_sec | |
871 | && ! get_reloc_section (abfd, hppa_info, sec)) | |
872 | goto err_out; | |
873 | ||
a03bd320 DA |
874 | /* Count dynamic relocations against global symbols. */ |
875 | if (hh != NULL | |
876 | && !count_dyn_reloc (abfd, hh, dynrel_type, sec, | |
877 | sec_symndx, rel->r_offset, rel->r_addend)) | |
15bda425 JL |
878 | goto err_out; |
879 | ||
880 | /* If we are building a shared library and we just recorded | |
881 | a dynamic R_PARISC_FPTR64 relocation, then make sure the | |
882 | section symbol for this section ends up in the dynamic | |
883 | symbol table. */ | |
0e1862bb | 884 | if (bfd_link_pic (info) && dynrel_type == R_PARISC_FPTR64 |
c152c796 | 885 | && ! (bfd_elf_link_record_local_dynamic_symbol |
15bda425 | 886 | (info, abfd, sec_symndx))) |
b34976b6 | 887 | return FALSE; |
15bda425 JL |
888 | } |
889 | } | |
890 | ||
b34976b6 | 891 | return TRUE; |
15bda425 JL |
892 | |
893 | err_out: | |
b34976b6 | 894 | return FALSE; |
15bda425 JL |
895 | } |
896 | ||
897 | struct elf64_hppa_allocate_data | |
898 | { | |
899 | struct bfd_link_info *info; | |
900 | bfd_size_type ofs; | |
901 | }; | |
902 | ||
903 | /* Should we do dynamic things to this symbol? */ | |
904 | ||
b34976b6 | 905 | static bfd_boolean |
a03bd320 | 906 | elf64_hppa_dynamic_symbol_p (struct elf_link_hash_entry *eh, |
813c8a3c | 907 | struct bfd_link_info *info) |
15bda425 | 908 | { |
986a241f RH |
909 | /* ??? What, if anything, needs to happen wrt STV_PROTECTED symbols |
910 | and relocations that retrieve a function descriptor? Assume the | |
911 | worst for now. */ | |
a03bd320 | 912 | if (_bfd_elf_dynamic_symbol_p (eh, info, 1)) |
986a241f RH |
913 | { |
914 | /* ??? Why is this here and not elsewhere is_local_label_name. */ | |
a03bd320 | 915 | if (eh->root.root.string[0] == '$' && eh->root.root.string[1] == '$') |
986a241f | 916 | return FALSE; |
15bda425 | 917 | |
986a241f RH |
918 | return TRUE; |
919 | } | |
920 | else | |
b34976b6 | 921 | return FALSE; |
15bda425 JL |
922 | } |
923 | ||
4cc11e76 | 924 | /* Mark all functions exported by this file so that we can later allocate |
15bda425 JL |
925 | entries in .opd for them. */ |
926 | ||
b34976b6 | 927 | static bfd_boolean |
a03bd320 | 928 | elf64_hppa_mark_exported_functions (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 929 | { |
a03bd320 | 930 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
931 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
932 | struct elf64_hppa_link_hash_table *hppa_info; | |
933 | ||
a03bd320 | 934 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
935 | if (hppa_info == NULL) |
936 | return FALSE; | |
15bda425 | 937 | |
a03bd320 DA |
938 | if (eh |
939 | && (eh->root.type == bfd_link_hash_defined | |
940 | || eh->root.type == bfd_link_hash_defweak) | |
941 | && eh->root.u.def.section->output_section != NULL | |
942 | && eh->type == STT_FUNC) | |
15bda425 | 943 | { |
15bda425 JL |
944 | if (! hppa_info->opd_sec |
945 | && ! get_opd (hppa_info->root.dynobj, info, hppa_info)) | |
b34976b6 | 946 | return FALSE; |
15bda425 | 947 | |
a03bd320 DA |
948 | hh->want_opd = 1; |
949 | ||
832d951b | 950 | /* Put a flag here for output_symbol_hook. */ |
a03bd320 DA |
951 | hh->st_shndx = -1; |
952 | eh->needs_plt = 1; | |
15bda425 JL |
953 | } |
954 | ||
b34976b6 | 955 | return TRUE; |
15bda425 JL |
956 | } |
957 | ||
958 | /* Allocate space for a DLT entry. */ | |
959 | ||
b34976b6 | 960 | static bfd_boolean |
a03bd320 | 961 | allocate_global_data_dlt (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 962 | { |
a03bd320 | 963 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
964 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
965 | ||
a03bd320 | 966 | if (hh->want_dlt) |
15bda425 | 967 | { |
0e1862bb | 968 | if (bfd_link_pic (x->info)) |
15bda425 JL |
969 | { |
970 | /* Possibly add the symbol to the local dynamic symbol | |
971 | table since we might need to create a dynamic relocation | |
972 | against it. */ | |
a03bd320 | 973 | if (eh->dynindx == -1 && eh->type != STT_PARISC_MILLI) |
15bda425 | 974 | { |
a03bd320 | 975 | bfd *owner = eh->root.u.def.section->owner; |
15bda425 | 976 | |
c152c796 | 977 | if (! (bfd_elf_link_record_local_dynamic_symbol |
a03bd320 | 978 | (x->info, owner, hh->sym_indx))) |
b34976b6 | 979 | return FALSE; |
15bda425 JL |
980 | } |
981 | } | |
982 | ||
a03bd320 | 983 | hh->dlt_offset = x->ofs; |
15bda425 JL |
984 | x->ofs += DLT_ENTRY_SIZE; |
985 | } | |
b34976b6 | 986 | return TRUE; |
15bda425 JL |
987 | } |
988 | ||
989 | /* Allocate space for a DLT.PLT entry. */ | |
990 | ||
b34976b6 | 991 | static bfd_boolean |
a03bd320 | 992 | allocate_global_data_plt (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 993 | { |
a03bd320 | 994 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
4dfe6ac6 | 995 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *) data; |
15bda425 | 996 | |
a03bd320 DA |
997 | if (hh->want_plt |
998 | && elf64_hppa_dynamic_symbol_p (eh, x->info) | |
999 | && !((eh->root.type == bfd_link_hash_defined | |
1000 | || eh->root.type == bfd_link_hash_defweak) | |
1001 | && eh->root.u.def.section->output_section != NULL)) | |
15bda425 | 1002 | { |
a03bd320 | 1003 | hh->plt_offset = x->ofs; |
15bda425 | 1004 | x->ofs += PLT_ENTRY_SIZE; |
a03bd320 | 1005 | if (hh->plt_offset < 0x2000) |
4dfe6ac6 NC |
1006 | { |
1007 | struct elf64_hppa_link_hash_table *hppa_info; | |
1008 | ||
1009 | hppa_info = hppa_link_hash_table (x->info); | |
1010 | if (hppa_info == NULL) | |
1011 | return FALSE; | |
1012 | ||
1013 | hppa_info->gp_offset = hh->plt_offset; | |
1014 | } | |
15bda425 JL |
1015 | } |
1016 | else | |
a03bd320 | 1017 | hh->want_plt = 0; |
15bda425 | 1018 | |
b34976b6 | 1019 | return TRUE; |
15bda425 JL |
1020 | } |
1021 | ||
1022 | /* Allocate space for a STUB entry. */ | |
1023 | ||
b34976b6 | 1024 | static bfd_boolean |
a03bd320 | 1025 | allocate_global_data_stub (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 1026 | { |
a03bd320 | 1027 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1028 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
1029 | ||
a03bd320 DA |
1030 | if (hh->want_stub |
1031 | && elf64_hppa_dynamic_symbol_p (eh, x->info) | |
1032 | && !((eh->root.type == bfd_link_hash_defined | |
1033 | || eh->root.type == bfd_link_hash_defweak) | |
1034 | && eh->root.u.def.section->output_section != NULL)) | |
15bda425 | 1035 | { |
a03bd320 | 1036 | hh->stub_offset = x->ofs; |
15bda425 JL |
1037 | x->ofs += sizeof (plt_stub); |
1038 | } | |
1039 | else | |
a03bd320 | 1040 | hh->want_stub = 0; |
b34976b6 | 1041 | return TRUE; |
15bda425 JL |
1042 | } |
1043 | ||
1044 | /* Allocate space for a FPTR entry. */ | |
1045 | ||
b34976b6 | 1046 | static bfd_boolean |
a03bd320 | 1047 | allocate_global_data_opd (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 1048 | { |
a03bd320 | 1049 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1050 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
1051 | ||
a03bd320 | 1052 | if (hh && hh->want_opd) |
15bda425 | 1053 | { |
15bda425 JL |
1054 | /* We never need an opd entry for a symbol which is not |
1055 | defined by this output file. */ | |
a03bd320 DA |
1056 | if (hh && (hh->eh.root.type == bfd_link_hash_undefined |
1057 | || hh->eh.root.type == bfd_link_hash_undefweak | |
1058 | || hh->eh.root.u.def.section->output_section == NULL)) | |
1059 | hh->want_opd = 0; | |
15bda425 JL |
1060 | |
1061 | /* If we are creating a shared library, took the address of a local | |
1062 | function or might export this function from this object file, then | |
1063 | we have to create an opd descriptor. */ | |
0e1862bb | 1064 | else if (bfd_link_pic (x->info) |
a03bd320 DA |
1065 | || hh == NULL |
1066 | || (hh->eh.dynindx == -1 && hh->eh.type != STT_PARISC_MILLI) | |
1067 | || (hh->eh.root.type == bfd_link_hash_defined | |
1068 | || hh->eh.root.type == bfd_link_hash_defweak)) | |
15bda425 JL |
1069 | { |
1070 | /* If we are creating a shared library, then we will have to | |
1071 | create a runtime relocation for the symbol to properly | |
1072 | initialize the .opd entry. Make sure the symbol gets | |
1073 | added to the dynamic symbol table. */ | |
0e1862bb | 1074 | if (bfd_link_pic (x->info) |
a03bd320 | 1075 | && (hh == NULL || (hh->eh.dynindx == -1))) |
15bda425 JL |
1076 | { |
1077 | bfd *owner; | |
adfef0bd | 1078 | /* PR 6511: Default to using the dynamic symbol table. */ |
a03bd320 | 1079 | owner = (hh->owner ? hh->owner: eh->root.u.def.section->owner); |
15bda425 | 1080 | |
c152c796 | 1081 | if (!bfd_elf_link_record_local_dynamic_symbol |
a03bd320 | 1082 | (x->info, owner, hh->sym_indx)) |
b34976b6 | 1083 | return FALSE; |
15bda425 JL |
1084 | } |
1085 | ||
1086 | /* This may not be necessary or desirable anymore now that | |
1087 | we have some support for dealing with section symbols | |
1088 | in dynamic relocs. But name munging does make the result | |
1089 | much easier to debug. ie, the EPLT reloc will reference | |
1090 | a symbol like .foobar, instead of .text + offset. */ | |
0e1862bb | 1091 | if (bfd_link_pic (x->info) && eh) |
15bda425 JL |
1092 | { |
1093 | char *new_name; | |
1094 | struct elf_link_hash_entry *nh; | |
1095 | ||
e1fa0163 | 1096 | new_name = concat (".", eh->root.root.string, NULL); |
15bda425 JL |
1097 | |
1098 | nh = elf_link_hash_lookup (elf_hash_table (x->info), | |
b34976b6 | 1099 | new_name, TRUE, TRUE, TRUE); |
15bda425 | 1100 | |
e1fa0163 | 1101 | free (new_name); |
a03bd320 DA |
1102 | nh->root.type = eh->root.type; |
1103 | nh->root.u.def.value = eh->root.u.def.value; | |
1104 | nh->root.u.def.section = eh->root.u.def.section; | |
15bda425 | 1105 | |
c152c796 | 1106 | if (! bfd_elf_link_record_dynamic_symbol (x->info, nh)) |
b34976b6 | 1107 | return FALSE; |
15bda425 | 1108 | } |
a03bd320 | 1109 | hh->opd_offset = x->ofs; |
15bda425 JL |
1110 | x->ofs += OPD_ENTRY_SIZE; |
1111 | } | |
1112 | ||
1113 | /* Otherwise we do not need an opd entry. */ | |
1114 | else | |
a03bd320 | 1115 | hh->want_opd = 0; |
15bda425 | 1116 | } |
b34976b6 | 1117 | return TRUE; |
15bda425 JL |
1118 | } |
1119 | ||
1120 | /* HP requires the EI_OSABI field to be filled in. The assignment to | |
1121 | EI_ABIVERSION may not be strictly necessary. */ | |
1122 | ||
1123 | static void | |
813c8a3c DA |
1124 | elf64_hppa_post_process_headers (bfd *abfd, |
1125 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED) | |
15bda425 JL |
1126 | { |
1127 | Elf_Internal_Ehdr * i_ehdrp; | |
1128 | ||
1129 | i_ehdrp = elf_elfheader (abfd); | |
68ffbac6 | 1130 | |
d1036acb L |
1131 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; |
1132 | i_ehdrp->e_ident[EI_ABIVERSION] = 1; | |
15bda425 JL |
1133 | } |
1134 | ||
1135 | /* Create function descriptor section (.opd). This section is called .opd | |
4cc11e76 | 1136 | because it contains "official procedure descriptors". The "official" |
15bda425 JL |
1137 | refers to the fact that these descriptors are used when taking the address |
1138 | of a procedure, thus ensuring a unique address for each procedure. */ | |
1139 | ||
b34976b6 | 1140 | static bfd_boolean |
813c8a3c DA |
1141 | get_opd (bfd *abfd, |
1142 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1143 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1144 | { |
1145 | asection *opd; | |
1146 | bfd *dynobj; | |
1147 | ||
1148 | opd = hppa_info->opd_sec; | |
1149 | if (!opd) | |
1150 | { | |
1151 | dynobj = hppa_info->root.dynobj; | |
1152 | if (!dynobj) | |
1153 | hppa_info->root.dynobj = dynobj = abfd; | |
1154 | ||
3d4d4302 AM |
1155 | opd = bfd_make_section_anyway_with_flags (dynobj, ".opd", |
1156 | (SEC_ALLOC | |
1157 | | SEC_LOAD | |
1158 | | SEC_HAS_CONTENTS | |
1159 | | SEC_IN_MEMORY | |
1160 | | SEC_LINKER_CREATED)); | |
15bda425 | 1161 | if (!opd |
15bda425 JL |
1162 | || !bfd_set_section_alignment (abfd, opd, 3)) |
1163 | { | |
1164 | BFD_ASSERT (0); | |
b34976b6 | 1165 | return FALSE; |
15bda425 JL |
1166 | } |
1167 | ||
1168 | hppa_info->opd_sec = opd; | |
1169 | } | |
1170 | ||
b34976b6 | 1171 | return TRUE; |
15bda425 JL |
1172 | } |
1173 | ||
1174 | /* Create the PLT section. */ | |
1175 | ||
b34976b6 | 1176 | static bfd_boolean |
813c8a3c DA |
1177 | get_plt (bfd *abfd, |
1178 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1179 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1180 | { |
1181 | asection *plt; | |
1182 | bfd *dynobj; | |
1183 | ||
1184 | plt = hppa_info->plt_sec; | |
1185 | if (!plt) | |
1186 | { | |
1187 | dynobj = hppa_info->root.dynobj; | |
1188 | if (!dynobj) | |
1189 | hppa_info->root.dynobj = dynobj = abfd; | |
1190 | ||
3d4d4302 AM |
1191 | plt = bfd_make_section_anyway_with_flags (dynobj, ".plt", |
1192 | (SEC_ALLOC | |
1193 | | SEC_LOAD | |
1194 | | SEC_HAS_CONTENTS | |
1195 | | SEC_IN_MEMORY | |
1196 | | SEC_LINKER_CREATED)); | |
15bda425 | 1197 | if (!plt |
15bda425 JL |
1198 | || !bfd_set_section_alignment (abfd, plt, 3)) |
1199 | { | |
1200 | BFD_ASSERT (0); | |
b34976b6 | 1201 | return FALSE; |
15bda425 JL |
1202 | } |
1203 | ||
1204 | hppa_info->plt_sec = plt; | |
1205 | } | |
1206 | ||
b34976b6 | 1207 | return TRUE; |
15bda425 JL |
1208 | } |
1209 | ||
1210 | /* Create the DLT section. */ | |
1211 | ||
b34976b6 | 1212 | static bfd_boolean |
813c8a3c DA |
1213 | get_dlt (bfd *abfd, |
1214 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1215 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1216 | { |
1217 | asection *dlt; | |
1218 | bfd *dynobj; | |
1219 | ||
1220 | dlt = hppa_info->dlt_sec; | |
1221 | if (!dlt) | |
1222 | { | |
1223 | dynobj = hppa_info->root.dynobj; | |
1224 | if (!dynobj) | |
1225 | hppa_info->root.dynobj = dynobj = abfd; | |
1226 | ||
3d4d4302 AM |
1227 | dlt = bfd_make_section_anyway_with_flags (dynobj, ".dlt", |
1228 | (SEC_ALLOC | |
1229 | | SEC_LOAD | |
1230 | | SEC_HAS_CONTENTS | |
1231 | | SEC_IN_MEMORY | |
1232 | | SEC_LINKER_CREATED)); | |
15bda425 | 1233 | if (!dlt |
15bda425 JL |
1234 | || !bfd_set_section_alignment (abfd, dlt, 3)) |
1235 | { | |
1236 | BFD_ASSERT (0); | |
b34976b6 | 1237 | return FALSE; |
15bda425 JL |
1238 | } |
1239 | ||
1240 | hppa_info->dlt_sec = dlt; | |
1241 | } | |
1242 | ||
b34976b6 | 1243 | return TRUE; |
15bda425 JL |
1244 | } |
1245 | ||
1246 | /* Create the stubs section. */ | |
1247 | ||
b34976b6 | 1248 | static bfd_boolean |
813c8a3c DA |
1249 | get_stub (bfd *abfd, |
1250 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1251 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1252 | { |
1253 | asection *stub; | |
1254 | bfd *dynobj; | |
1255 | ||
1256 | stub = hppa_info->stub_sec; | |
1257 | if (!stub) | |
1258 | { | |
1259 | dynobj = hppa_info->root.dynobj; | |
1260 | if (!dynobj) | |
1261 | hppa_info->root.dynobj = dynobj = abfd; | |
1262 | ||
3d4d4302 AM |
1263 | stub = bfd_make_section_anyway_with_flags (dynobj, ".stub", |
1264 | (SEC_ALLOC | SEC_LOAD | |
1265 | | SEC_HAS_CONTENTS | |
1266 | | SEC_IN_MEMORY | |
1267 | | SEC_READONLY | |
1268 | | SEC_LINKER_CREATED)); | |
15bda425 | 1269 | if (!stub |
15bda425 JL |
1270 | || !bfd_set_section_alignment (abfd, stub, 3)) |
1271 | { | |
1272 | BFD_ASSERT (0); | |
b34976b6 | 1273 | return FALSE; |
15bda425 JL |
1274 | } |
1275 | ||
1276 | hppa_info->stub_sec = stub; | |
1277 | } | |
1278 | ||
b34976b6 | 1279 | return TRUE; |
15bda425 JL |
1280 | } |
1281 | ||
1282 | /* Create sections necessary for dynamic linking. This is only a rough | |
1283 | cut and will likely change as we learn more about the somewhat | |
1284 | unusual dynamic linking scheme HP uses. | |
1285 | ||
1286 | .stub: | |
1287 | Contains code to implement cross-space calls. The first time one | |
1288 | of the stubs is used it will call into the dynamic linker, later | |
1289 | calls will go straight to the target. | |
1290 | ||
1291 | The only stub we support right now looks like | |
1292 | ||
1293 | ldd OFFSET(%dp),%r1 | |
1294 | bve %r0(%r1) | |
1295 | ldd OFFSET+8(%dp),%dp | |
1296 | ||
1297 | Other stubs may be needed in the future. We may want the remove | |
1298 | the break/nop instruction. It is only used right now to keep the | |
1299 | offset of a .plt entry and a .stub entry in sync. | |
1300 | ||
1301 | .dlt: | |
1302 | This is what most people call the .got. HP used a different name. | |
1303 | Losers. | |
1304 | ||
1305 | .rela.dlt: | |
1306 | Relocations for the DLT. | |
1307 | ||
1308 | .plt: | |
1309 | Function pointers as address,gp pairs. | |
1310 | ||
1311 | .rela.plt: | |
1312 | Should contain dynamic IPLT (and EPLT?) relocations. | |
1313 | ||
1314 | .opd: | |
fe8bc63d | 1315 | FPTRS |
15bda425 JL |
1316 | |
1317 | .rela.opd: | |
1318 | EPLT relocations for symbols exported from shared libraries. */ | |
1319 | ||
b34976b6 | 1320 | static bfd_boolean |
813c8a3c DA |
1321 | elf64_hppa_create_dynamic_sections (bfd *abfd, |
1322 | struct bfd_link_info *info) | |
15bda425 JL |
1323 | { |
1324 | asection *s; | |
4dfe6ac6 NC |
1325 | struct elf64_hppa_link_hash_table *hppa_info; |
1326 | ||
1327 | hppa_info = hppa_link_hash_table (info); | |
1328 | if (hppa_info == NULL) | |
1329 | return FALSE; | |
15bda425 | 1330 | |
4dfe6ac6 | 1331 | if (! get_stub (abfd, info, hppa_info)) |
b34976b6 | 1332 | return FALSE; |
15bda425 | 1333 | |
4dfe6ac6 | 1334 | if (! get_dlt (abfd, info, hppa_info)) |
b34976b6 | 1335 | return FALSE; |
15bda425 | 1336 | |
4dfe6ac6 | 1337 | if (! get_plt (abfd, info, hppa_info)) |
b34976b6 | 1338 | return FALSE; |
15bda425 | 1339 | |
4dfe6ac6 | 1340 | if (! get_opd (abfd, info, hppa_info)) |
b34976b6 | 1341 | return FALSE; |
15bda425 | 1342 | |
3d4d4302 AM |
1343 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.dlt", |
1344 | (SEC_ALLOC | SEC_LOAD | |
1345 | | SEC_HAS_CONTENTS | |
1346 | | SEC_IN_MEMORY | |
1347 | | SEC_READONLY | |
1348 | | SEC_LINKER_CREATED)); | |
15bda425 | 1349 | if (s == NULL |
15bda425 | 1350 | || !bfd_set_section_alignment (abfd, s, 3)) |
b34976b6 | 1351 | return FALSE; |
4dfe6ac6 | 1352 | hppa_info->dlt_rel_sec = s; |
15bda425 | 1353 | |
3d4d4302 AM |
1354 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.plt", |
1355 | (SEC_ALLOC | SEC_LOAD | |
1356 | | SEC_HAS_CONTENTS | |
1357 | | SEC_IN_MEMORY | |
1358 | | SEC_READONLY | |
1359 | | SEC_LINKER_CREATED)); | |
15bda425 | 1360 | if (s == NULL |
15bda425 | 1361 | || !bfd_set_section_alignment (abfd, s, 3)) |
b34976b6 | 1362 | return FALSE; |
4dfe6ac6 | 1363 | hppa_info->plt_rel_sec = s; |
15bda425 | 1364 | |
3d4d4302 AM |
1365 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.data", |
1366 | (SEC_ALLOC | SEC_LOAD | |
1367 | | SEC_HAS_CONTENTS | |
1368 | | SEC_IN_MEMORY | |
1369 | | SEC_READONLY | |
1370 | | SEC_LINKER_CREATED)); | |
15bda425 | 1371 | if (s == NULL |
15bda425 | 1372 | || !bfd_set_section_alignment (abfd, s, 3)) |
b34976b6 | 1373 | return FALSE; |
4dfe6ac6 | 1374 | hppa_info->other_rel_sec = s; |
15bda425 | 1375 | |
3d4d4302 AM |
1376 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.opd", |
1377 | (SEC_ALLOC | SEC_LOAD | |
1378 | | SEC_HAS_CONTENTS | |
1379 | | SEC_IN_MEMORY | |
1380 | | SEC_READONLY | |
1381 | | SEC_LINKER_CREATED)); | |
15bda425 | 1382 | if (s == NULL |
15bda425 | 1383 | || !bfd_set_section_alignment (abfd, s, 3)) |
b34976b6 | 1384 | return FALSE; |
4dfe6ac6 | 1385 | hppa_info->opd_rel_sec = s; |
15bda425 | 1386 | |
b34976b6 | 1387 | return TRUE; |
15bda425 JL |
1388 | } |
1389 | ||
1390 | /* Allocate dynamic relocations for those symbols that turned out | |
1391 | to be dynamic. */ | |
1392 | ||
b34976b6 | 1393 | static bfd_boolean |
a03bd320 | 1394 | allocate_dynrel_entries (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 1395 | { |
a03bd320 | 1396 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1397 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
1398 | struct elf64_hppa_link_hash_table *hppa_info; | |
1399 | struct elf64_hppa_dyn_reloc_entry *rent; | |
b34976b6 | 1400 | bfd_boolean dynamic_symbol, shared; |
15bda425 | 1401 | |
a03bd320 | 1402 | hppa_info = hppa_link_hash_table (x->info); |
4dfe6ac6 NC |
1403 | if (hppa_info == NULL) |
1404 | return FALSE; | |
1405 | ||
a03bd320 | 1406 | dynamic_symbol = elf64_hppa_dynamic_symbol_p (eh, x->info); |
0e1862bb | 1407 | shared = bfd_link_pic (x->info); |
15bda425 JL |
1408 | |
1409 | /* We may need to allocate relocations for a non-dynamic symbol | |
1410 | when creating a shared library. */ | |
1411 | if (!dynamic_symbol && !shared) | |
b34976b6 | 1412 | return TRUE; |
15bda425 JL |
1413 | |
1414 | /* Take care of the normal data relocations. */ | |
1415 | ||
a03bd320 | 1416 | for (rent = hh->reloc_entries; rent; rent = rent->next) |
15bda425 | 1417 | { |
d663e1cd JL |
1418 | /* Allocate one iff we are building a shared library, the relocation |
1419 | isn't a R_PARISC_FPTR64, or we don't want an opd entry. */ | |
a03bd320 | 1420 | if (!shared && rent->type == R_PARISC_FPTR64 && hh->want_opd) |
d663e1cd JL |
1421 | continue; |
1422 | ||
eea6121a | 1423 | hppa_info->other_rel_sec->size += sizeof (Elf64_External_Rela); |
15bda425 JL |
1424 | |
1425 | /* Make sure this symbol gets into the dynamic symbol table if it is | |
1426 | not already recorded. ?!? This should not be in the loop since | |
1427 | the symbol need only be added once. */ | |
a03bd320 | 1428 | if (eh->dynindx == -1 && eh->type != STT_PARISC_MILLI) |
c152c796 | 1429 | if (!bfd_elf_link_record_local_dynamic_symbol |
a03bd320 | 1430 | (x->info, rent->sec->owner, hh->sym_indx)) |
b34976b6 | 1431 | return FALSE; |
15bda425 JL |
1432 | } |
1433 | ||
1434 | /* Take care of the GOT and PLT relocations. */ | |
1435 | ||
a03bd320 | 1436 | if ((dynamic_symbol || shared) && hh->want_dlt) |
eea6121a | 1437 | hppa_info->dlt_rel_sec->size += sizeof (Elf64_External_Rela); |
15bda425 JL |
1438 | |
1439 | /* If we are building a shared library, then every symbol that has an | |
1440 | opd entry will need an EPLT relocation to relocate the symbol's address | |
1441 | and __gp value based on the runtime load address. */ | |
a03bd320 | 1442 | if (shared && hh->want_opd) |
eea6121a | 1443 | hppa_info->opd_rel_sec->size += sizeof (Elf64_External_Rela); |
15bda425 | 1444 | |
a03bd320 | 1445 | if (hh->want_plt && dynamic_symbol) |
15bda425 JL |
1446 | { |
1447 | bfd_size_type t = 0; | |
1448 | ||
1449 | /* Dynamic symbols get one IPLT relocation. Local symbols in | |
1450 | shared libraries get two REL relocations. Local symbols in | |
1451 | main applications get nothing. */ | |
1452 | if (dynamic_symbol) | |
1453 | t = sizeof (Elf64_External_Rela); | |
1454 | else if (shared) | |
1455 | t = 2 * sizeof (Elf64_External_Rela); | |
1456 | ||
eea6121a | 1457 | hppa_info->plt_rel_sec->size += t; |
15bda425 JL |
1458 | } |
1459 | ||
b34976b6 | 1460 | return TRUE; |
15bda425 JL |
1461 | } |
1462 | ||
1463 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
1464 | regular object. */ | |
1465 | ||
b34976b6 | 1466 | static bfd_boolean |
813c8a3c | 1467 | elf64_hppa_adjust_dynamic_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
a03bd320 | 1468 | struct elf_link_hash_entry *eh) |
15bda425 JL |
1469 | { |
1470 | /* ??? Undefined symbols with PLT entries should be re-defined | |
1471 | to be the PLT entry. */ | |
1472 | ||
1473 | /* If this is a weak symbol, and there is a real definition, the | |
1474 | processor independent code will have arranged for us to see the | |
1475 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 1476 | if (eh->is_weakalias) |
15bda425 | 1477 | { |
60d67dc8 AM |
1478 | struct elf_link_hash_entry *def = weakdef (eh); |
1479 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
1480 | eh->root.u.def.section = def->root.u.def.section; | |
1481 | eh->root.u.def.value = def->root.u.def.value; | |
b34976b6 | 1482 | return TRUE; |
15bda425 JL |
1483 | } |
1484 | ||
1485 | /* If this is a reference to a symbol defined by a dynamic object which | |
1486 | is not a function, we might allocate the symbol in our .dynbss section | |
1487 | and allocate a COPY dynamic relocation. | |
1488 | ||
1489 | But PA64 code is canonically PIC, so as a rule we can avoid this sort | |
1490 | of hackery. */ | |
1491 | ||
b34976b6 | 1492 | return TRUE; |
15bda425 JL |
1493 | } |
1494 | ||
47b7c2db AM |
1495 | /* This function is called via elf_link_hash_traverse to mark millicode |
1496 | symbols with a dynindx of -1 and to remove the string table reference | |
1497 | from the dynamic symbol table. If the symbol is not a millicode symbol, | |
1498 | elf64_hppa_mark_exported_functions is called. */ | |
1499 | ||
b34976b6 | 1500 | static bfd_boolean |
a03bd320 | 1501 | elf64_hppa_mark_milli_and_exported_functions (struct elf_link_hash_entry *eh, |
813c8a3c | 1502 | void *data) |
47b7c2db | 1503 | { |
7686d77d | 1504 | struct bfd_link_info *info = (struct bfd_link_info *) data; |
47b7c2db | 1505 | |
7686d77d | 1506 | if (eh->type == STT_PARISC_MILLI) |
47b7c2db | 1507 | { |
7686d77d | 1508 | if (eh->dynindx != -1) |
47b7c2db | 1509 | { |
7686d77d | 1510 | eh->dynindx = -1; |
47b7c2db | 1511 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, |
7686d77d | 1512 | eh->dynstr_index); |
47b7c2db | 1513 | } |
b34976b6 | 1514 | return TRUE; |
47b7c2db AM |
1515 | } |
1516 | ||
a03bd320 | 1517 | return elf64_hppa_mark_exported_functions (eh, data); |
47b7c2db AM |
1518 | } |
1519 | ||
15bda425 JL |
1520 | /* Set the final sizes of the dynamic sections and allocate memory for |
1521 | the contents of our special sections. */ | |
1522 | ||
b34976b6 | 1523 | static bfd_boolean |
a03bd320 | 1524 | elf64_hppa_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) |
15bda425 | 1525 | { |
a03bd320 DA |
1526 | struct elf64_hppa_link_hash_table *hppa_info; |
1527 | struct elf64_hppa_allocate_data data; | |
15bda425 | 1528 | bfd *dynobj; |
a03bd320 DA |
1529 | bfd *ibfd; |
1530 | asection *sec; | |
b34976b6 AM |
1531 | bfd_boolean plt; |
1532 | bfd_boolean relocs; | |
1533 | bfd_boolean reltext; | |
15bda425 | 1534 | |
a03bd320 | 1535 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
1536 | if (hppa_info == NULL) |
1537 | return FALSE; | |
15bda425 | 1538 | |
ce558b89 | 1539 | dynobj = hppa_info->root.dynobj; |
15bda425 JL |
1540 | BFD_ASSERT (dynobj != NULL); |
1541 | ||
47b7c2db AM |
1542 | /* Mark each function this program exports so that we will allocate |
1543 | space in the .opd section for each function's FPTR. If we are | |
1544 | creating dynamic sections, change the dynamic index of millicode | |
1545 | symbols to -1 and remove them from the string table for .dynstr. | |
1546 | ||
1547 | We have to traverse the main linker hash table since we have to | |
1548 | find functions which may not have been mentioned in any relocs. */ | |
ce558b89 AM |
1549 | elf_link_hash_traverse (&hppa_info->root, |
1550 | (hppa_info->root.dynamic_sections_created | |
47b7c2db AM |
1551 | ? elf64_hppa_mark_milli_and_exported_functions |
1552 | : elf64_hppa_mark_exported_functions), | |
1553 | info); | |
1554 | ||
ce558b89 | 1555 | if (hppa_info->root.dynamic_sections_created) |
15bda425 JL |
1556 | { |
1557 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 1558 | if (bfd_link_executable (info) && !info->nointerp) |
15bda425 | 1559 | { |
3d4d4302 | 1560 | sec = bfd_get_linker_section (dynobj, ".interp"); |
a03bd320 DA |
1561 | BFD_ASSERT (sec != NULL); |
1562 | sec->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
1563 | sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
15bda425 JL |
1564 | } |
1565 | } | |
1566 | else | |
1567 | { | |
1568 | /* We may have created entries in the .rela.got section. | |
1569 | However, if we are not creating the dynamic sections, we will | |
1570 | not actually use these entries. Reset the size of .rela.dlt, | |
1571 | which will cause it to get stripped from the output file | |
1572 | below. */ | |
ce558b89 | 1573 | sec = hppa_info->dlt_rel_sec; |
a03bd320 DA |
1574 | if (sec != NULL) |
1575 | sec->size = 0; | |
1576 | } | |
1577 | ||
1578 | /* Set up DLT, PLT and OPD offsets for local syms, and space for local | |
1579 | dynamic relocs. */ | |
c72f2fb2 | 1580 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
a03bd320 DA |
1581 | { |
1582 | bfd_signed_vma *local_dlt; | |
1583 | bfd_signed_vma *end_local_dlt; | |
1584 | bfd_signed_vma *local_plt; | |
1585 | bfd_signed_vma *end_local_plt; | |
1586 | bfd_signed_vma *local_opd; | |
1587 | bfd_signed_vma *end_local_opd; | |
1588 | bfd_size_type locsymcount; | |
1589 | Elf_Internal_Shdr *symtab_hdr; | |
1590 | asection *srel; | |
1591 | ||
1592 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
1593 | continue; | |
1594 | ||
1595 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
1596 | { | |
1597 | struct elf64_hppa_dyn_reloc_entry *hdh_p; | |
1598 | ||
1599 | for (hdh_p = ((struct elf64_hppa_dyn_reloc_entry *) | |
1600 | elf_section_data (sec)->local_dynrel); | |
1601 | hdh_p != NULL; | |
1602 | hdh_p = hdh_p->next) | |
1603 | { | |
1604 | if (!bfd_is_abs_section (hdh_p->sec) | |
1605 | && bfd_is_abs_section (hdh_p->sec->output_section)) | |
1606 | { | |
1607 | /* Input section has been discarded, either because | |
1608 | it is a copy of a linkonce section or due to | |
1609 | linker script /DISCARD/, so we'll be discarding | |
1610 | the relocs too. */ | |
1611 | } | |
1612 | else if (hdh_p->count != 0) | |
1613 | { | |
1614 | srel = elf_section_data (hdh_p->sec)->sreloc; | |
1615 | srel->size += hdh_p->count * sizeof (Elf64_External_Rela); | |
1616 | if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0) | |
1617 | info->flags |= DF_TEXTREL; | |
1618 | } | |
1619 | } | |
1620 | } | |
1621 | ||
1622 | local_dlt = elf_local_got_refcounts (ibfd); | |
1623 | if (!local_dlt) | |
1624 | continue; | |
1625 | ||
1626 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
1627 | locsymcount = symtab_hdr->sh_info; | |
1628 | end_local_dlt = local_dlt + locsymcount; | |
1629 | sec = hppa_info->dlt_sec; | |
1630 | srel = hppa_info->dlt_rel_sec; | |
1631 | for (; local_dlt < end_local_dlt; ++local_dlt) | |
1632 | { | |
1633 | if (*local_dlt > 0) | |
1634 | { | |
1635 | *local_dlt = sec->size; | |
1636 | sec->size += DLT_ENTRY_SIZE; | |
0e1862bb | 1637 | if (bfd_link_pic (info)) |
a03bd320 DA |
1638 | { |
1639 | srel->size += sizeof (Elf64_External_Rela); | |
1640 | } | |
1641 | } | |
1642 | else | |
1643 | *local_dlt = (bfd_vma) -1; | |
1644 | } | |
1645 | ||
1646 | local_plt = end_local_dlt; | |
1647 | end_local_plt = local_plt + locsymcount; | |
1648 | if (! hppa_info->root.dynamic_sections_created) | |
1649 | { | |
1650 | /* Won't be used, but be safe. */ | |
1651 | for (; local_plt < end_local_plt; ++local_plt) | |
1652 | *local_plt = (bfd_vma) -1; | |
1653 | } | |
1654 | else | |
1655 | { | |
1656 | sec = hppa_info->plt_sec; | |
1657 | srel = hppa_info->plt_rel_sec; | |
1658 | for (; local_plt < end_local_plt; ++local_plt) | |
1659 | { | |
1660 | if (*local_plt > 0) | |
1661 | { | |
1662 | *local_plt = sec->size; | |
1663 | sec->size += PLT_ENTRY_SIZE; | |
0e1862bb | 1664 | if (bfd_link_pic (info)) |
a03bd320 DA |
1665 | srel->size += sizeof (Elf64_External_Rela); |
1666 | } | |
1667 | else | |
1668 | *local_plt = (bfd_vma) -1; | |
1669 | } | |
1670 | } | |
1671 | ||
1672 | local_opd = end_local_plt; | |
1673 | end_local_opd = local_opd + locsymcount; | |
1674 | if (! hppa_info->root.dynamic_sections_created) | |
1675 | { | |
1676 | /* Won't be used, but be safe. */ | |
1677 | for (; local_opd < end_local_opd; ++local_opd) | |
1678 | *local_opd = (bfd_vma) -1; | |
1679 | } | |
1680 | else | |
1681 | { | |
1682 | sec = hppa_info->opd_sec; | |
1683 | srel = hppa_info->opd_rel_sec; | |
1684 | for (; local_opd < end_local_opd; ++local_opd) | |
1685 | { | |
1686 | if (*local_opd > 0) | |
1687 | { | |
1688 | *local_opd = sec->size; | |
1689 | sec->size += OPD_ENTRY_SIZE; | |
0e1862bb | 1690 | if (bfd_link_pic (info)) |
a03bd320 DA |
1691 | srel->size += sizeof (Elf64_External_Rela); |
1692 | } | |
1693 | else | |
1694 | *local_opd = (bfd_vma) -1; | |
1695 | } | |
1696 | } | |
15bda425 JL |
1697 | } |
1698 | ||
1699 | /* Allocate the GOT entries. */ | |
1700 | ||
1701 | data.info = info; | |
a03bd320 | 1702 | if (hppa_info->dlt_sec) |
15bda425 | 1703 | { |
a03bd320 | 1704 | data.ofs = hppa_info->dlt_sec->size; |
ce558b89 | 1705 | elf_link_hash_traverse (&hppa_info->root, |
a03bd320 | 1706 | allocate_global_data_dlt, &data); |
eea6121a | 1707 | hppa_info->dlt_sec->size = data.ofs; |
a03bd320 | 1708 | } |
15bda425 | 1709 | |
a03bd320 DA |
1710 | if (hppa_info->plt_sec) |
1711 | { | |
1712 | data.ofs = hppa_info->plt_sec->size; | |
ce558b89 | 1713 | elf_link_hash_traverse (&hppa_info->root, |
a03bd320 | 1714 | allocate_global_data_plt, &data); |
eea6121a | 1715 | hppa_info->plt_sec->size = data.ofs; |
a03bd320 | 1716 | } |
15bda425 | 1717 | |
a03bd320 DA |
1718 | if (hppa_info->stub_sec) |
1719 | { | |
15bda425 | 1720 | data.ofs = 0x0; |
ce558b89 | 1721 | elf_link_hash_traverse (&hppa_info->root, |
a03bd320 | 1722 | allocate_global_data_stub, &data); |
eea6121a | 1723 | hppa_info->stub_sec->size = data.ofs; |
15bda425 JL |
1724 | } |
1725 | ||
15bda425 | 1726 | /* Allocate space for entries in the .opd section. */ |
a03bd320 | 1727 | if (hppa_info->opd_sec) |
15bda425 | 1728 | { |
a03bd320 | 1729 | data.ofs = hppa_info->opd_sec->size; |
ce558b89 | 1730 | elf_link_hash_traverse (&hppa_info->root, |
a03bd320 | 1731 | allocate_global_data_opd, &data); |
eea6121a | 1732 | hppa_info->opd_sec->size = data.ofs; |
15bda425 JL |
1733 | } |
1734 | ||
1735 | /* Now allocate space for dynamic relocations, if necessary. */ | |
1736 | if (hppa_info->root.dynamic_sections_created) | |
ce558b89 | 1737 | elf_link_hash_traverse (&hppa_info->root, |
a03bd320 | 1738 | allocate_dynrel_entries, &data); |
15bda425 JL |
1739 | |
1740 | /* The sizes of all the sections are set. Allocate memory for them. */ | |
b34976b6 AM |
1741 | plt = FALSE; |
1742 | relocs = FALSE; | |
1743 | reltext = FALSE; | |
a03bd320 | 1744 | for (sec = dynobj->sections; sec != NULL; sec = sec->next) |
15bda425 JL |
1745 | { |
1746 | const char *name; | |
15bda425 | 1747 | |
a03bd320 | 1748 | if ((sec->flags & SEC_LINKER_CREATED) == 0) |
15bda425 JL |
1749 | continue; |
1750 | ||
1751 | /* It's OK to base decisions on the section name, because none | |
1752 | of the dynobj section names depend upon the input files. */ | |
a03bd320 | 1753 | name = bfd_get_section_name (dynobj, sec); |
15bda425 | 1754 | |
15bda425 JL |
1755 | if (strcmp (name, ".plt") == 0) |
1756 | { | |
c456f082 | 1757 | /* Remember whether there is a PLT. */ |
a03bd320 | 1758 | plt = sec->size != 0; |
15bda425 | 1759 | } |
c456f082 | 1760 | else if (strcmp (name, ".opd") == 0 |
0112cd26 | 1761 | || CONST_STRNEQ (name, ".dlt") |
c456f082 AM |
1762 | || strcmp (name, ".stub") == 0 |
1763 | || strcmp (name, ".got") == 0) | |
15bda425 | 1764 | { |
d663e1cd | 1765 | /* Strip this section if we don't need it; see the comment below. */ |
15bda425 | 1766 | } |
0112cd26 | 1767 | else if (CONST_STRNEQ (name, ".rela")) |
15bda425 | 1768 | { |
a03bd320 | 1769 | if (sec->size != 0) |
15bda425 JL |
1770 | { |
1771 | asection *target; | |
1772 | ||
1773 | /* Remember whether there are any reloc sections other | |
1774 | than .rela.plt. */ | |
1775 | if (strcmp (name, ".rela.plt") != 0) | |
1776 | { | |
1777 | const char *outname; | |
1778 | ||
b34976b6 | 1779 | relocs = TRUE; |
15bda425 JL |
1780 | |
1781 | /* If this relocation section applies to a read only | |
1782 | section, then we probably need a DT_TEXTREL | |
1783 | entry. The entries in the .rela.plt section | |
1784 | really apply to the .got section, which we | |
1785 | created ourselves and so know is not readonly. */ | |
1786 | outname = bfd_get_section_name (output_bfd, | |
a03bd320 | 1787 | sec->output_section); |
15bda425 JL |
1788 | target = bfd_get_section_by_name (output_bfd, outname + 4); |
1789 | if (target != NULL | |
1790 | && (target->flags & SEC_READONLY) != 0 | |
1791 | && (target->flags & SEC_ALLOC) != 0) | |
b34976b6 | 1792 | reltext = TRUE; |
15bda425 JL |
1793 | } |
1794 | ||
1795 | /* We use the reloc_count field as a counter if we need | |
1796 | to copy relocs into the output file. */ | |
a03bd320 | 1797 | sec->reloc_count = 0; |
15bda425 JL |
1798 | } |
1799 | } | |
c456f082 | 1800 | else |
15bda425 JL |
1801 | { |
1802 | /* It's not one of our sections, so don't allocate space. */ | |
1803 | continue; | |
1804 | } | |
1805 | ||
a03bd320 | 1806 | if (sec->size == 0) |
15bda425 | 1807 | { |
c456f082 AM |
1808 | /* If we don't need this section, strip it from the |
1809 | output file. This is mostly to handle .rela.bss and | |
1810 | .rela.plt. We must create both sections in | |
1811 | create_dynamic_sections, because they must be created | |
1812 | before the linker maps input sections to output | |
1813 | sections. The linker does that before | |
1814 | adjust_dynamic_symbol is called, and it is that | |
1815 | function which decides whether anything needs to go | |
1816 | into these sections. */ | |
a03bd320 | 1817 | sec->flags |= SEC_EXCLUDE; |
15bda425 JL |
1818 | continue; |
1819 | } | |
1820 | ||
a03bd320 | 1821 | if ((sec->flags & SEC_HAS_CONTENTS) == 0) |
c456f082 AM |
1822 | continue; |
1823 | ||
15bda425 | 1824 | /* Allocate memory for the section contents if it has not |
832d951b AM |
1825 | been allocated already. We use bfd_zalloc here in case |
1826 | unused entries are not reclaimed before the section's | |
1827 | contents are written out. This should not happen, but this | |
1828 | way if it does, we get a R_PARISC_NONE reloc instead of | |
1829 | garbage. */ | |
a03bd320 | 1830 | if (sec->contents == NULL) |
15bda425 | 1831 | { |
a03bd320 DA |
1832 | sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->size); |
1833 | if (sec->contents == NULL) | |
b34976b6 | 1834 | return FALSE; |
15bda425 JL |
1835 | } |
1836 | } | |
1837 | ||
ce558b89 | 1838 | if (hppa_info->root.dynamic_sections_created) |
15bda425 JL |
1839 | { |
1840 | /* Always create a DT_PLTGOT. It actually has nothing to do with | |
1841 | the PLT, it is how we communicate the __gp value of a load | |
1842 | module to the dynamic linker. */ | |
dc810e39 | 1843 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 1844 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 AM |
1845 | |
1846 | if (!add_dynamic_entry (DT_HP_DLD_FLAGS, 0) | |
1847 | || !add_dynamic_entry (DT_PLTGOT, 0)) | |
b34976b6 | 1848 | return FALSE; |
15bda425 JL |
1849 | |
1850 | /* Add some entries to the .dynamic section. We fill in the | |
1851 | values later, in elf64_hppa_finish_dynamic_sections, but we | |
1852 | must add the entries now so that we get the correct size for | |
1853 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
1854 | dynamic linker and used by the debugger. */ | |
0e1862bb | 1855 | if (! bfd_link_pic (info)) |
15bda425 | 1856 | { |
dc810e39 AM |
1857 | if (!add_dynamic_entry (DT_DEBUG, 0) |
1858 | || !add_dynamic_entry (DT_HP_DLD_HOOK, 0) | |
1859 | || !add_dynamic_entry (DT_HP_LOAD_MAP, 0)) | |
b34976b6 | 1860 | return FALSE; |
15bda425 JL |
1861 | } |
1862 | ||
f2482cb2 NC |
1863 | /* Force DT_FLAGS to always be set. |
1864 | Required by HPUX 11.00 patch PHSS_26559. */ | |
1865 | if (!add_dynamic_entry (DT_FLAGS, (info)->flags)) | |
b34976b6 | 1866 | return FALSE; |
f2482cb2 | 1867 | |
15bda425 JL |
1868 | if (plt) |
1869 | { | |
dc810e39 AM |
1870 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
1871 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
1872 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 1873 | return FALSE; |
15bda425 JL |
1874 | } |
1875 | ||
1876 | if (relocs) | |
1877 | { | |
dc810e39 AM |
1878 | if (!add_dynamic_entry (DT_RELA, 0) |
1879 | || !add_dynamic_entry (DT_RELASZ, 0) | |
1880 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
b34976b6 | 1881 | return FALSE; |
15bda425 JL |
1882 | } |
1883 | ||
1884 | if (reltext) | |
1885 | { | |
dc810e39 | 1886 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 1887 | return FALSE; |
d6cf2879 | 1888 | info->flags |= DF_TEXTREL; |
15bda425 JL |
1889 | } |
1890 | } | |
dc810e39 | 1891 | #undef add_dynamic_entry |
15bda425 | 1892 | |
b34976b6 | 1893 | return TRUE; |
15bda425 JL |
1894 | } |
1895 | ||
1896 | /* Called after we have output the symbol into the dynamic symbol | |
1897 | table, but before we output the symbol into the normal symbol | |
1898 | table. | |
1899 | ||
1900 | For some symbols we had to change their address when outputting | |
1901 | the dynamic symbol table. We undo that change here so that | |
1902 | the symbols have their expected value in the normal symbol | |
1903 | table. Ick. */ | |
1904 | ||
6e0b88f1 | 1905 | static int |
a03bd320 | 1906 | elf64_hppa_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
813c8a3c DA |
1907 | const char *name, |
1908 | Elf_Internal_Sym *sym, | |
1909 | asection *input_sec ATTRIBUTE_UNUSED, | |
a03bd320 | 1910 | struct elf_link_hash_entry *eh) |
15bda425 | 1911 | { |
a03bd320 | 1912 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1913 | |
1914 | /* We may be called with the file symbol or section symbols. | |
1915 | They never need munging, so it is safe to ignore them. */ | |
a03bd320 | 1916 | if (!name || !eh) |
6e0b88f1 | 1917 | return 1; |
15bda425 | 1918 | |
832d951b AM |
1919 | /* Function symbols for which we created .opd entries *may* have been |
1920 | munged by finish_dynamic_symbol and have to be un-munged here. | |
1921 | ||
1922 | Note that finish_dynamic_symbol sometimes turns dynamic symbols | |
1923 | into non-dynamic ones, so we initialize st_shndx to -1 in | |
1924 | mark_exported_functions and check to see if it was overwritten | |
a03bd320 DA |
1925 | here instead of just checking eh->dynindx. */ |
1926 | if (hh->want_opd && hh->st_shndx != -1) | |
15bda425 JL |
1927 | { |
1928 | /* Restore the saved value and section index. */ | |
a03bd320 DA |
1929 | sym->st_value = hh->st_value; |
1930 | sym->st_shndx = hh->st_shndx; | |
15bda425 JL |
1931 | } |
1932 | ||
6e0b88f1 | 1933 | return 1; |
15bda425 JL |
1934 | } |
1935 | ||
1936 | /* Finish up dynamic symbol handling. We set the contents of various | |
1937 | dynamic sections here. */ | |
1938 | ||
b34976b6 | 1939 | static bfd_boolean |
813c8a3c DA |
1940 | elf64_hppa_finish_dynamic_symbol (bfd *output_bfd, |
1941 | struct bfd_link_info *info, | |
a03bd320 | 1942 | struct elf_link_hash_entry *eh, |
813c8a3c | 1943 | Elf_Internal_Sym *sym) |
15bda425 | 1944 | { |
a03bd320 | 1945 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
c7e2358a | 1946 | asection *stub, *splt, *sopd, *spltrel; |
15bda425 | 1947 | struct elf64_hppa_link_hash_table *hppa_info; |
15bda425 | 1948 | |
a03bd320 | 1949 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
1950 | if (hppa_info == NULL) |
1951 | return FALSE; | |
15bda425 JL |
1952 | |
1953 | stub = hppa_info->stub_sec; | |
1954 | splt = hppa_info->plt_sec; | |
15bda425 JL |
1955 | sopd = hppa_info->opd_sec; |
1956 | spltrel = hppa_info->plt_rel_sec; | |
15bda425 | 1957 | |
15bda425 JL |
1958 | /* Incredible. It is actually necessary to NOT use the symbol's real |
1959 | value when building the dynamic symbol table for a shared library. | |
1960 | At least for symbols that refer to functions. | |
1961 | ||
1962 | We will store a new value and section index into the symbol long | |
1963 | enough to output it into the dynamic symbol table, then we restore | |
1964 | the original values (in elf64_hppa_link_output_symbol_hook). */ | |
a03bd320 | 1965 | if (hh->want_opd) |
15bda425 | 1966 | { |
f12123c0 | 1967 | BFD_ASSERT (sopd != NULL); |
d663e1cd | 1968 | |
15bda425 JL |
1969 | /* Save away the original value and section index so that we |
1970 | can restore them later. */ | |
a03bd320 DA |
1971 | hh->st_value = sym->st_value; |
1972 | hh->st_shndx = sym->st_shndx; | |
15bda425 JL |
1973 | |
1974 | /* For the dynamic symbol table entry, we want the value to be | |
1975 | address of this symbol's entry within the .opd section. */ | |
a03bd320 | 1976 | sym->st_value = (hh->opd_offset |
15bda425 JL |
1977 | + sopd->output_offset |
1978 | + sopd->output_section->vma); | |
1979 | sym->st_shndx = _bfd_elf_section_from_bfd_section (output_bfd, | |
1980 | sopd->output_section); | |
1981 | } | |
1982 | ||
1983 | /* Initialize a .plt entry if requested. */ | |
a03bd320 DA |
1984 | if (hh->want_plt |
1985 | && elf64_hppa_dynamic_symbol_p (eh, info)) | |
15bda425 JL |
1986 | { |
1987 | bfd_vma value; | |
1988 | Elf_Internal_Rela rel; | |
947216bf | 1989 | bfd_byte *loc; |
15bda425 | 1990 | |
f12123c0 | 1991 | BFD_ASSERT (splt != NULL && spltrel != NULL); |
d663e1cd | 1992 | |
15bda425 JL |
1993 | /* We do not actually care about the value in the PLT entry |
1994 | if we are creating a shared library and the symbol is | |
1995 | still undefined, we create a dynamic relocation to fill | |
1996 | in the correct value. */ | |
0e1862bb | 1997 | if (bfd_link_pic (info) && eh->root.type == bfd_link_hash_undefined) |
15bda425 JL |
1998 | value = 0; |
1999 | else | |
a03bd320 | 2000 | value = (eh->root.u.def.value + eh->root.u.def.section->vma); |
15bda425 | 2001 | |
fe8bc63d | 2002 | /* Fill in the entry in the procedure linkage table. |
15bda425 JL |
2003 | |
2004 | The format of a plt entry is | |
fe8bc63d | 2005 | <funcaddr> <__gp>. |
15bda425 JL |
2006 | |
2007 | plt_offset is the offset within the PLT section at which to | |
fe8bc63d | 2008 | install the PLT entry. |
15bda425 JL |
2009 | |
2010 | We are modifying the in-memory PLT contents here, so we do not add | |
2011 | in the output_offset of the PLT section. */ | |
2012 | ||
a03bd320 | 2013 | bfd_put_64 (splt->owner, value, splt->contents + hh->plt_offset); |
15bda425 | 2014 | value = _bfd_get_gp_value (splt->output_section->owner); |
a03bd320 | 2015 | bfd_put_64 (splt->owner, value, splt->contents + hh->plt_offset + 0x8); |
15bda425 JL |
2016 | |
2017 | /* Create a dynamic IPLT relocation for this entry. | |
2018 | ||
2019 | We are creating a relocation in the output file's PLT section, | |
2020 | which is included within the DLT secton. So we do need to include | |
2021 | the PLT's output_offset in the computation of the relocation's | |
2022 | address. */ | |
a03bd320 | 2023 | rel.r_offset = (hh->plt_offset + splt->output_offset |
15bda425 | 2024 | + splt->output_section->vma); |
a03bd320 | 2025 | rel.r_info = ELF64_R_INFO (hh->eh.dynindx, R_PARISC_IPLT); |
15bda425 JL |
2026 | rel.r_addend = 0; |
2027 | ||
947216bf AM |
2028 | loc = spltrel->contents; |
2029 | loc += spltrel->reloc_count++ * sizeof (Elf64_External_Rela); | |
2030 | bfd_elf64_swap_reloca_out (splt->output_section->owner, &rel, loc); | |
15bda425 JL |
2031 | } |
2032 | ||
2033 | /* Initialize an external call stub entry if requested. */ | |
a03bd320 DA |
2034 | if (hh->want_stub |
2035 | && elf64_hppa_dynamic_symbol_p (eh, info)) | |
15bda425 JL |
2036 | { |
2037 | bfd_vma value; | |
2038 | int insn; | |
b352eebf | 2039 | unsigned int max_offset; |
15bda425 | 2040 | |
f12123c0 | 2041 | BFD_ASSERT (stub != NULL); |
d663e1cd | 2042 | |
15bda425 JL |
2043 | /* Install the generic stub template. |
2044 | ||
2045 | We are modifying the contents of the stub section, so we do not | |
2046 | need to include the stub section's output_offset here. */ | |
a03bd320 | 2047 | memcpy (stub->contents + hh->stub_offset, plt_stub, sizeof (plt_stub)); |
15bda425 JL |
2048 | |
2049 | /* Fix up the first ldd instruction. | |
2050 | ||
2051 | We are modifying the contents of the STUB section in memory, | |
fe8bc63d | 2052 | so we do not need to include its output offset in this computation. |
15bda425 JL |
2053 | |
2054 | Note the plt_offset value is the value of the PLT entry relative to | |
2055 | the start of the PLT section. These instructions will reference | |
2056 | data relative to the value of __gp, which may not necessarily have | |
2057 | the same address as the start of the PLT section. | |
2058 | ||
2059 | gp_offset contains the offset of __gp within the PLT section. */ | |
a03bd320 | 2060 | value = hh->plt_offset - hppa_info->gp_offset; |
fe8bc63d | 2061 | |
a03bd320 | 2062 | insn = bfd_get_32 (stub->owner, stub->contents + hh->stub_offset); |
b352eebf AM |
2063 | if (output_bfd->arch_info->mach >= 25) |
2064 | { | |
2065 | /* Wide mode allows 16 bit offsets. */ | |
2066 | max_offset = 32768; | |
2067 | insn &= ~ 0xfff1; | |
dc810e39 | 2068 | insn |= re_assemble_16 ((int) value); |
b352eebf AM |
2069 | } |
2070 | else | |
2071 | { | |
2072 | max_offset = 8192; | |
2073 | insn &= ~ 0x3ff1; | |
dc810e39 | 2074 | insn |= re_assemble_14 ((int) value); |
b352eebf AM |
2075 | } |
2076 | ||
2077 | if ((value & 7) || value + max_offset >= 2*max_offset - 8) | |
2078 | { | |
4eca0228 | 2079 | _bfd_error_handler |
695344c0 | 2080 | /* xgettext:c-format */ |
d42c267e AM |
2081 | (_("stub entry for %s cannot load .plt, dp offset = %Ld"), |
2082 | hh->eh.root.root.string, value); | |
b34976b6 | 2083 | return FALSE; |
b352eebf AM |
2084 | } |
2085 | ||
dc810e39 | 2086 | bfd_put_32 (stub->owner, (bfd_vma) insn, |
a03bd320 | 2087 | stub->contents + hh->stub_offset); |
15bda425 JL |
2088 | |
2089 | /* Fix up the second ldd instruction. */ | |
b352eebf | 2090 | value += 8; |
a03bd320 | 2091 | insn = bfd_get_32 (stub->owner, stub->contents + hh->stub_offset + 8); |
b352eebf AM |
2092 | if (output_bfd->arch_info->mach >= 25) |
2093 | { | |
2094 | insn &= ~ 0xfff1; | |
dc810e39 | 2095 | insn |= re_assemble_16 ((int) value); |
b352eebf AM |
2096 | } |
2097 | else | |
2098 | { | |
2099 | insn &= ~ 0x3ff1; | |
dc810e39 | 2100 | insn |= re_assemble_14 ((int) value); |
b352eebf | 2101 | } |
dc810e39 | 2102 | bfd_put_32 (stub->owner, (bfd_vma) insn, |
a03bd320 | 2103 | stub->contents + hh->stub_offset + 8); |
15bda425 JL |
2104 | } |
2105 | ||
b34976b6 | 2106 | return TRUE; |
15bda425 JL |
2107 | } |
2108 | ||
2109 | /* The .opd section contains FPTRs for each function this file | |
2110 | exports. Initialize the FPTR entries. */ | |
2111 | ||
b34976b6 | 2112 | static bfd_boolean |
a03bd320 | 2113 | elf64_hppa_finalize_opd (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 2114 | { |
a03bd320 | 2115 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
2116 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
2117 | struct elf64_hppa_link_hash_table *hppa_info; | |
15bda425 JL |
2118 | asection *sopd; |
2119 | asection *sopdrel; | |
2120 | ||
a03bd320 | 2121 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2122 | if (hppa_info == NULL) |
2123 | return FALSE; | |
2124 | ||
15bda425 JL |
2125 | sopd = hppa_info->opd_sec; |
2126 | sopdrel = hppa_info->opd_rel_sec; | |
2127 | ||
a03bd320 | 2128 | if (hh->want_opd) |
15bda425 JL |
2129 | { |
2130 | bfd_vma value; | |
2131 | ||
fe8bc63d | 2132 | /* The first two words of an .opd entry are zero. |
15bda425 JL |
2133 | |
2134 | We are modifying the contents of the OPD section in memory, so we | |
2135 | do not need to include its output offset in this computation. */ | |
a03bd320 | 2136 | memset (sopd->contents + hh->opd_offset, 0, 16); |
15bda425 | 2137 | |
a03bd320 DA |
2138 | value = (eh->root.u.def.value |
2139 | + eh->root.u.def.section->output_section->vma | |
2140 | + eh->root.u.def.section->output_offset); | |
15bda425 JL |
2141 | |
2142 | /* The next word is the address of the function. */ | |
a03bd320 | 2143 | bfd_put_64 (sopd->owner, value, sopd->contents + hh->opd_offset + 16); |
15bda425 JL |
2144 | |
2145 | /* The last word is our local __gp value. */ | |
2146 | value = _bfd_get_gp_value (sopd->output_section->owner); | |
a03bd320 | 2147 | bfd_put_64 (sopd->owner, value, sopd->contents + hh->opd_offset + 24); |
15bda425 JL |
2148 | } |
2149 | ||
2150 | /* If we are generating a shared library, we must generate EPLT relocations | |
2151 | for each entry in the .opd, even for static functions (they may have | |
2152 | had their address taken). */ | |
0e1862bb | 2153 | if (bfd_link_pic (info) && hh->want_opd) |
15bda425 | 2154 | { |
947216bf AM |
2155 | Elf_Internal_Rela rel; |
2156 | bfd_byte *loc; | |
15bda425 JL |
2157 | int dynindx; |
2158 | ||
2159 | /* We may need to do a relocation against a local symbol, in | |
2160 | which case we have to look up it's dynamic symbol index off | |
2161 | the local symbol hash table. */ | |
a03bd320 DA |
2162 | if (eh->dynindx != -1) |
2163 | dynindx = eh->dynindx; | |
15bda425 JL |
2164 | else |
2165 | dynindx | |
a03bd320 DA |
2166 | = _bfd_elf_link_lookup_local_dynindx (info, hh->owner, |
2167 | hh->sym_indx); | |
15bda425 JL |
2168 | |
2169 | /* The offset of this relocation is the absolute address of the | |
2170 | .opd entry for this symbol. */ | |
a03bd320 | 2171 | rel.r_offset = (hh->opd_offset + sopd->output_offset |
15bda425 JL |
2172 | + sopd->output_section->vma); |
2173 | ||
2174 | /* If H is non-null, then we have an external symbol. | |
2175 | ||
2176 | It is imperative that we use a different dynamic symbol for the | |
2177 | EPLT relocation if the symbol has global scope. | |
2178 | ||
2179 | In the dynamic symbol table, the function symbol will have a value | |
2180 | which is address of the function's .opd entry. | |
2181 | ||
2182 | Thus, we can not use that dynamic symbol for the EPLT relocation | |
2183 | (if we did, the data in the .opd would reference itself rather | |
2184 | than the actual address of the function). Instead we have to use | |
2185 | a new dynamic symbol which has the same value as the original global | |
fe8bc63d | 2186 | function symbol. |
15bda425 JL |
2187 | |
2188 | We prefix the original symbol with a "." and use the new symbol in | |
2189 | the EPLT relocation. This new symbol has already been recorded in | |
2190 | the symbol table, we just have to look it up and use it. | |
2191 | ||
2192 | We do not have such problems with static functions because we do | |
2193 | not make their addresses in the dynamic symbol table point to | |
2194 | the .opd entry. Ultimately this should be safe since a static | |
2195 | function can not be directly referenced outside of its shared | |
2196 | library. | |
2197 | ||
2198 | We do have to play similar games for FPTR relocations in shared | |
2199 | libraries, including those for static symbols. See the FPTR | |
2200 | handling in elf64_hppa_finalize_dynreloc. */ | |
a03bd320 | 2201 | if (eh) |
15bda425 JL |
2202 | { |
2203 | char *new_name; | |
2204 | struct elf_link_hash_entry *nh; | |
2205 | ||
e1fa0163 | 2206 | new_name = concat (".", eh->root.root.string, NULL); |
15bda425 JL |
2207 | |
2208 | nh = elf_link_hash_lookup (elf_hash_table (info), | |
adfef0bd | 2209 | new_name, TRUE, TRUE, FALSE); |
68ffbac6 | 2210 | |
15bda425 JL |
2211 | /* All we really want from the new symbol is its dynamic |
2212 | symbol index. */ | |
7fb9f789 NC |
2213 | if (nh) |
2214 | dynindx = nh->dynindx; | |
e1fa0163 | 2215 | free (new_name); |
15bda425 JL |
2216 | } |
2217 | ||
2218 | rel.r_addend = 0; | |
2219 | rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_EPLT); | |
2220 | ||
947216bf AM |
2221 | loc = sopdrel->contents; |
2222 | loc += sopdrel->reloc_count++ * sizeof (Elf64_External_Rela); | |
2223 | bfd_elf64_swap_reloca_out (sopd->output_section->owner, &rel, loc); | |
15bda425 | 2224 | } |
b34976b6 | 2225 | return TRUE; |
15bda425 JL |
2226 | } |
2227 | ||
2228 | /* The .dlt section contains addresses for items referenced through the | |
2229 | dlt. Note that we can have a DLTIND relocation for a local symbol, thus | |
2230 | we can not depend on finish_dynamic_symbol to initialize the .dlt. */ | |
2231 | ||
b34976b6 | 2232 | static bfd_boolean |
a03bd320 | 2233 | elf64_hppa_finalize_dlt (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 2234 | { |
a03bd320 | 2235 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
2236 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
2237 | struct elf64_hppa_link_hash_table *hppa_info; | |
2238 | asection *sdlt, *sdltrel; | |
15bda425 | 2239 | |
a03bd320 | 2240 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2241 | if (hppa_info == NULL) |
2242 | return FALSE; | |
15bda425 JL |
2243 | |
2244 | sdlt = hppa_info->dlt_sec; | |
2245 | sdltrel = hppa_info->dlt_rel_sec; | |
2246 | ||
2247 | /* H/DYN_H may refer to a local variable and we know it's | |
2248 | address, so there is no need to create a relocation. Just install | |
2249 | the proper value into the DLT, note this shortcut can not be | |
2250 | skipped when building a shared library. */ | |
0e1862bb | 2251 | if (! bfd_link_pic (info) && hh && hh->want_dlt) |
15bda425 JL |
2252 | { |
2253 | bfd_vma value; | |
2254 | ||
2255 | /* If we had an LTOFF_FPTR style relocation we want the DLT entry | |
fe8bc63d | 2256 | to point to the FPTR entry in the .opd section. |
15bda425 JL |
2257 | |
2258 | We include the OPD's output offset in this computation as | |
2259 | we are referring to an absolute address in the resulting | |
2260 | object file. */ | |
a03bd320 | 2261 | if (hh->want_opd) |
15bda425 | 2262 | { |
a03bd320 | 2263 | value = (hh->opd_offset |
15bda425 JL |
2264 | + hppa_info->opd_sec->output_offset |
2265 | + hppa_info->opd_sec->output_section->vma); | |
2266 | } | |
a03bd320 DA |
2267 | else if ((eh->root.type == bfd_link_hash_defined |
2268 | || eh->root.type == bfd_link_hash_defweak) | |
2269 | && eh->root.u.def.section) | |
15bda425 | 2270 | { |
a03bd320 DA |
2271 | value = eh->root.u.def.value + eh->root.u.def.section->output_offset; |
2272 | if (eh->root.u.def.section->output_section) | |
2273 | value += eh->root.u.def.section->output_section->vma; | |
15bda425 | 2274 | else |
a03bd320 | 2275 | value += eh->root.u.def.section->vma; |
15bda425 | 2276 | } |
3db4b612 JL |
2277 | else |
2278 | /* We have an undefined function reference. */ | |
2279 | value = 0; | |
15bda425 JL |
2280 | |
2281 | /* We do not need to include the output offset of the DLT section | |
2282 | here because we are modifying the in-memory contents. */ | |
a03bd320 | 2283 | bfd_put_64 (sdlt->owner, value, sdlt->contents + hh->dlt_offset); |
15bda425 JL |
2284 | } |
2285 | ||
4cc11e76 | 2286 | /* Create a relocation for the DLT entry associated with this symbol. |
15bda425 | 2287 | When building a shared library the symbol does not have to be dynamic. */ |
a03bd320 | 2288 | if (hh->want_dlt |
0e1862bb | 2289 | && (elf64_hppa_dynamic_symbol_p (eh, info) || bfd_link_pic (info))) |
15bda425 | 2290 | { |
947216bf AM |
2291 | Elf_Internal_Rela rel; |
2292 | bfd_byte *loc; | |
15bda425 JL |
2293 | int dynindx; |
2294 | ||
2295 | /* We may need to do a relocation against a local symbol, in | |
2296 | which case we have to look up it's dynamic symbol index off | |
2297 | the local symbol hash table. */ | |
a03bd320 DA |
2298 | if (eh && eh->dynindx != -1) |
2299 | dynindx = eh->dynindx; | |
15bda425 JL |
2300 | else |
2301 | dynindx | |
a03bd320 DA |
2302 | = _bfd_elf_link_lookup_local_dynindx (info, hh->owner, |
2303 | hh->sym_indx); | |
15bda425 | 2304 | |
15bda425 JL |
2305 | /* Create a dynamic relocation for this entry. Do include the output |
2306 | offset of the DLT entry since we need an absolute address in the | |
2307 | resulting object file. */ | |
a03bd320 | 2308 | rel.r_offset = (hh->dlt_offset + sdlt->output_offset |
15bda425 | 2309 | + sdlt->output_section->vma); |
a03bd320 | 2310 | if (eh && eh->type == STT_FUNC) |
15bda425 JL |
2311 | rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_FPTR64); |
2312 | else | |
2313 | rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_DIR64); | |
2314 | rel.r_addend = 0; | |
2315 | ||
947216bf AM |
2316 | loc = sdltrel->contents; |
2317 | loc += sdltrel->reloc_count++ * sizeof (Elf64_External_Rela); | |
2318 | bfd_elf64_swap_reloca_out (sdlt->output_section->owner, &rel, loc); | |
15bda425 | 2319 | } |
b34976b6 | 2320 | return TRUE; |
15bda425 JL |
2321 | } |
2322 | ||
2323 | /* Finalize the dynamic relocations. Specifically the FPTR relocations | |
2324 | for dynamic functions used to initialize static data. */ | |
2325 | ||
b34976b6 | 2326 | static bfd_boolean |
a03bd320 | 2327 | elf64_hppa_finalize_dynreloc (struct elf_link_hash_entry *eh, |
813c8a3c | 2328 | void *data) |
15bda425 | 2329 | { |
a03bd320 | 2330 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
2331 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
2332 | struct elf64_hppa_link_hash_table *hppa_info; | |
15bda425 JL |
2333 | int dynamic_symbol; |
2334 | ||
a03bd320 | 2335 | dynamic_symbol = elf64_hppa_dynamic_symbol_p (eh, info); |
15bda425 | 2336 | |
0e1862bb | 2337 | if (!dynamic_symbol && !bfd_link_pic (info)) |
b34976b6 | 2338 | return TRUE; |
15bda425 | 2339 | |
a03bd320 | 2340 | if (hh->reloc_entries) |
15bda425 JL |
2341 | { |
2342 | struct elf64_hppa_dyn_reloc_entry *rent; | |
2343 | int dynindx; | |
2344 | ||
a03bd320 | 2345 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2346 | if (hppa_info == NULL) |
2347 | return FALSE; | |
15bda425 JL |
2348 | |
2349 | /* We may need to do a relocation against a local symbol, in | |
2350 | which case we have to look up it's dynamic symbol index off | |
2351 | the local symbol hash table. */ | |
a03bd320 DA |
2352 | if (eh->dynindx != -1) |
2353 | dynindx = eh->dynindx; | |
15bda425 JL |
2354 | else |
2355 | dynindx | |
a03bd320 DA |
2356 | = _bfd_elf_link_lookup_local_dynindx (info, hh->owner, |
2357 | hh->sym_indx); | |
15bda425 | 2358 | |
a03bd320 | 2359 | for (rent = hh->reloc_entries; rent; rent = rent->next) |
15bda425 | 2360 | { |
947216bf AM |
2361 | Elf_Internal_Rela rel; |
2362 | bfd_byte *loc; | |
15bda425 | 2363 | |
d663e1cd JL |
2364 | /* Allocate one iff we are building a shared library, the relocation |
2365 | isn't a R_PARISC_FPTR64, or we don't want an opd entry. */ | |
0e1862bb L |
2366 | if (!bfd_link_pic (info) |
2367 | && rent->type == R_PARISC_FPTR64 && hh->want_opd) | |
d663e1cd | 2368 | continue; |
15bda425 | 2369 | |
fe8bc63d | 2370 | /* Create a dynamic relocation for this entry. |
15bda425 JL |
2371 | |
2372 | We need the output offset for the reloc's section because | |
2373 | we are creating an absolute address in the resulting object | |
2374 | file. */ | |
2375 | rel.r_offset = (rent->offset + rent->sec->output_offset | |
2376 | + rent->sec->output_section->vma); | |
2377 | ||
2378 | /* An FPTR64 relocation implies that we took the address of | |
2379 | a function and that the function has an entry in the .opd | |
2380 | section. We want the FPTR64 relocation to reference the | |
2381 | entry in .opd. | |
2382 | ||
2383 | We could munge the symbol value in the dynamic symbol table | |
2384 | (in fact we already do for functions with global scope) to point | |
2385 | to the .opd entry. Then we could use that dynamic symbol in | |
2386 | this relocation. | |
2387 | ||
2388 | Or we could do something sensible, not munge the symbol's | |
2389 | address and instead just use a different symbol to reference | |
2390 | the .opd entry. At least that seems sensible until you | |
2391 | realize there's no local dynamic symbols we can use for that | |
2392 | purpose. Thus the hair in the check_relocs routine. | |
fe8bc63d | 2393 | |
15bda425 JL |
2394 | We use a section symbol recorded by check_relocs as the |
2395 | base symbol for the relocation. The addend is the difference | |
2396 | between the section symbol and the address of the .opd entry. */ | |
0e1862bb L |
2397 | if (bfd_link_pic (info) |
2398 | && rent->type == R_PARISC_FPTR64 && hh->want_opd) | |
15bda425 JL |
2399 | { |
2400 | bfd_vma value, value2; | |
15bda425 JL |
2401 | |
2402 | /* First compute the address of the opd entry for this symbol. */ | |
a03bd320 | 2403 | value = (hh->opd_offset |
15bda425 JL |
2404 | + hppa_info->opd_sec->output_section->vma |
2405 | + hppa_info->opd_sec->output_offset); | |
2406 | ||
2407 | /* Compute the value of the start of the section with | |
2408 | the relocation. */ | |
2409 | value2 = (rent->sec->output_section->vma | |
2410 | + rent->sec->output_offset); | |
2411 | ||
2412 | /* Compute the difference between the start of the section | |
2413 | with the relocation and the opd entry. */ | |
2414 | value -= value2; | |
fe8bc63d | 2415 | |
15bda425 JL |
2416 | /* The result becomes the addend of the relocation. */ |
2417 | rel.r_addend = value; | |
2418 | ||
2419 | /* The section symbol becomes the symbol for the dynamic | |
2420 | relocation. */ | |
2421 | dynindx | |
2422 | = _bfd_elf_link_lookup_local_dynindx (info, | |
2423 | rent->sec->owner, | |
2424 | rent->sec_symndx); | |
2425 | } | |
2426 | else | |
2427 | rel.r_addend = rent->addend; | |
2428 | ||
2429 | rel.r_info = ELF64_R_INFO (dynindx, rent->type); | |
2430 | ||
947216bf AM |
2431 | loc = hppa_info->other_rel_sec->contents; |
2432 | loc += (hppa_info->other_rel_sec->reloc_count++ | |
2433 | * sizeof (Elf64_External_Rela)); | |
15bda425 | 2434 | bfd_elf64_swap_reloca_out (hppa_info->other_rel_sec->output_section->owner, |
947216bf | 2435 | &rel, loc); |
15bda425 JL |
2436 | } |
2437 | } | |
2438 | ||
b34976b6 | 2439 | return TRUE; |
15bda425 JL |
2440 | } |
2441 | ||
5ac81c74 JL |
2442 | /* Used to decide how to sort relocs in an optimal manner for the |
2443 | dynamic linker, before writing them out. */ | |
2444 | ||
2445 | static enum elf_reloc_type_class | |
7e612e98 AM |
2446 | elf64_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
2447 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
2448 | const Elf_Internal_Rela *rela) | |
5ac81c74 | 2449 | { |
cf35638d | 2450 | if (ELF64_R_SYM (rela->r_info) == STN_UNDEF) |
5ac81c74 JL |
2451 | return reloc_class_relative; |
2452 | ||
2453 | switch ((int) ELF64_R_TYPE (rela->r_info)) | |
2454 | { | |
2455 | case R_PARISC_IPLT: | |
2456 | return reloc_class_plt; | |
2457 | case R_PARISC_COPY: | |
2458 | return reloc_class_copy; | |
2459 | default: | |
2460 | return reloc_class_normal; | |
2461 | } | |
2462 | } | |
2463 | ||
15bda425 JL |
2464 | /* Finish up the dynamic sections. */ |
2465 | ||
b34976b6 | 2466 | static bfd_boolean |
813c8a3c DA |
2467 | elf64_hppa_finish_dynamic_sections (bfd *output_bfd, |
2468 | struct bfd_link_info *info) | |
15bda425 JL |
2469 | { |
2470 | bfd *dynobj; | |
2471 | asection *sdyn; | |
2472 | struct elf64_hppa_link_hash_table *hppa_info; | |
2473 | ||
a03bd320 | 2474 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2475 | if (hppa_info == NULL) |
2476 | return FALSE; | |
15bda425 JL |
2477 | |
2478 | /* Finalize the contents of the .opd section. */ | |
a03bd320 DA |
2479 | elf_link_hash_traverse (elf_hash_table (info), |
2480 | elf64_hppa_finalize_opd, | |
2481 | info); | |
15bda425 | 2482 | |
a03bd320 DA |
2483 | elf_link_hash_traverse (elf_hash_table (info), |
2484 | elf64_hppa_finalize_dynreloc, | |
2485 | info); | |
15bda425 JL |
2486 | |
2487 | /* Finalize the contents of the .dlt section. */ | |
2488 | dynobj = elf_hash_table (info)->dynobj; | |
2489 | /* Finalize the contents of the .dlt section. */ | |
a03bd320 DA |
2490 | elf_link_hash_traverse (elf_hash_table (info), |
2491 | elf64_hppa_finalize_dlt, | |
2492 | info); | |
15bda425 | 2493 | |
3d4d4302 | 2494 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
15bda425 JL |
2495 | |
2496 | if (elf_hash_table (info)->dynamic_sections_created) | |
2497 | { | |
2498 | Elf64_External_Dyn *dyncon, *dynconend; | |
15bda425 JL |
2499 | |
2500 | BFD_ASSERT (sdyn != NULL); | |
2501 | ||
2502 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
eea6121a | 2503 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
15bda425 JL |
2504 | for (; dyncon < dynconend; dyncon++) |
2505 | { | |
2506 | Elf_Internal_Dyn dyn; | |
2507 | asection *s; | |
2508 | ||
2509 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
2510 | ||
2511 | switch (dyn.d_tag) | |
2512 | { | |
2513 | default: | |
2514 | break; | |
2515 | ||
2516 | case DT_HP_LOAD_MAP: | |
2517 | /* Compute the absolute address of 16byte scratchpad area | |
2518 | for the dynamic linker. | |
2519 | ||
2520 | By convention the linker script will allocate the scratchpad | |
2521 | area at the start of the .data section. So all we have to | |
2522 | to is find the start of the .data section. */ | |
2523 | s = bfd_get_section_by_name (output_bfd, ".data"); | |
a505d7ac MR |
2524 | if (!s) |
2525 | return FALSE; | |
15bda425 JL |
2526 | dyn.d_un.d_ptr = s->vma; |
2527 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2528 | break; | |
2529 | ||
2530 | case DT_PLTGOT: | |
2531 | /* HP's use PLTGOT to set the GOT register. */ | |
2532 | dyn.d_un.d_ptr = _bfd_get_gp_value (output_bfd); | |
2533 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2534 | break; | |
2535 | ||
2536 | case DT_JMPREL: | |
2537 | s = hppa_info->plt_rel_sec; | |
2538 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
2539 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2540 | break; | |
2541 | ||
2542 | case DT_PLTRELSZ: | |
2543 | s = hppa_info->plt_rel_sec; | |
eea6121a | 2544 | dyn.d_un.d_val = s->size; |
15bda425 JL |
2545 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
2546 | break; | |
2547 | ||
2548 | case DT_RELA: | |
2549 | s = hppa_info->other_rel_sec; | |
eea6121a | 2550 | if (! s || ! s->size) |
15bda425 | 2551 | s = hppa_info->dlt_rel_sec; |
eea6121a | 2552 | if (! s || ! s->size) |
5ac81c74 | 2553 | s = hppa_info->opd_rel_sec; |
15bda425 JL |
2554 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
2555 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2556 | break; | |
2557 | ||
2558 | case DT_RELASZ: | |
2559 | s = hppa_info->other_rel_sec; | |
eea6121a | 2560 | dyn.d_un.d_val = s->size; |
15bda425 | 2561 | s = hppa_info->dlt_rel_sec; |
eea6121a | 2562 | dyn.d_un.d_val += s->size; |
15bda425 | 2563 | s = hppa_info->opd_rel_sec; |
eea6121a | 2564 | dyn.d_un.d_val += s->size; |
15bda425 JL |
2565 | /* There is some question about whether or not the size of |
2566 | the PLT relocs should be included here. HP's tools do | |
2567 | it, so we'll emulate them. */ | |
2568 | s = hppa_info->plt_rel_sec; | |
eea6121a | 2569 | dyn.d_un.d_val += s->size; |
15bda425 JL |
2570 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
2571 | break; | |
2572 | ||
2573 | } | |
2574 | } | |
2575 | } | |
2576 | ||
b34976b6 | 2577 | return TRUE; |
15bda425 JL |
2578 | } |
2579 | ||
235ecfbc NC |
2580 | /* Support for core dump NOTE sections. */ |
2581 | ||
2582 | static bfd_boolean | |
2583 | elf64_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
2584 | { | |
2585 | int offset; | |
2586 | size_t size; | |
2587 | ||
2588 | switch (note->descsz) | |
2589 | { | |
2590 | default: | |
2591 | return FALSE; | |
2592 | ||
2593 | case 760: /* Linux/hppa */ | |
2594 | /* pr_cursig */ | |
228e534f | 2595 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
235ecfbc NC |
2596 | |
2597 | /* pr_pid */ | |
228e534f | 2598 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
235ecfbc NC |
2599 | |
2600 | /* pr_reg */ | |
2601 | offset = 112; | |
2602 | size = 640; | |
2603 | ||
2604 | break; | |
2605 | } | |
2606 | ||
2607 | /* Make a ".reg/999" section. */ | |
2608 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
2609 | size, note->descpos + offset); | |
2610 | } | |
2611 | ||
2612 | static bfd_boolean | |
2613 | elf64_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
2614 | { | |
2615 | char * command; | |
2616 | int n; | |
2617 | ||
2618 | switch (note->descsz) | |
2619 | { | |
2620 | default: | |
2621 | return FALSE; | |
2622 | ||
2623 | case 136: /* Linux/hppa elf_prpsinfo. */ | |
228e534f | 2624 | elf_tdata (abfd)->core->program |
235ecfbc | 2625 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
228e534f | 2626 | elf_tdata (abfd)->core->command |
235ecfbc NC |
2627 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
2628 | } | |
2629 | ||
2630 | /* Note that for some reason, a spurious space is tacked | |
2631 | onto the end of the args in some (at least one anyway) | |
2632 | implementations, so strip it off if it exists. */ | |
228e534f | 2633 | command = elf_tdata (abfd)->core->command; |
235ecfbc NC |
2634 | n = strlen (command); |
2635 | ||
2636 | if (0 < n && command[n - 1] == ' ') | |
2637 | command[n - 1] = '\0'; | |
2638 | ||
2639 | return TRUE; | |
2640 | } | |
2641 | ||
15bda425 JL |
2642 | /* Return the number of additional phdrs we will need. |
2643 | ||
2644 | The generic ELF code only creates PT_PHDRs for executables. The HP | |
fe8bc63d | 2645 | dynamic linker requires PT_PHDRs for dynamic libraries too. |
15bda425 JL |
2646 | |
2647 | This routine indicates that the backend needs one additional program | |
2648 | header for that case. | |
2649 | ||
2650 | Note we do not have access to the link info structure here, so we have | |
2651 | to guess whether or not we are building a shared library based on the | |
2652 | existence of a .interp section. */ | |
2653 | ||
2654 | static int | |
a6b96beb | 2655 | elf64_hppa_additional_program_headers (bfd *abfd, |
813c8a3c | 2656 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
15bda425 JL |
2657 | { |
2658 | asection *s; | |
2659 | ||
2660 | /* If we are creating a shared library, then we have to create a | |
2661 | PT_PHDR segment. HP's dynamic linker chokes without it. */ | |
2662 | s = bfd_get_section_by_name (abfd, ".interp"); | |
2663 | if (! s) | |
2664 | return 1; | |
2665 | return 0; | |
2666 | } | |
2667 | ||
1a9ccd70 NC |
2668 | static bfd_boolean |
2669 | elf64_hppa_allow_non_load_phdr (bfd *abfd ATTRIBUTE_UNUSED, | |
2670 | const Elf_Internal_Phdr *phdr ATTRIBUTE_UNUSED, | |
2671 | unsigned int count ATTRIBUTE_UNUSED) | |
2672 | { | |
2673 | return TRUE; | |
2674 | } | |
2675 | ||
15bda425 JL |
2676 | /* Allocate and initialize any program headers required by this |
2677 | specific backend. | |
2678 | ||
2679 | The generic ELF code only creates PT_PHDRs for executables. The HP | |
fe8bc63d | 2680 | dynamic linker requires PT_PHDRs for dynamic libraries too. |
15bda425 JL |
2681 | |
2682 | This allocates the PT_PHDR and initializes it in a manner suitable | |
fe8bc63d | 2683 | for the HP linker. |
15bda425 JL |
2684 | |
2685 | Note we do not have access to the link info structure here, so we have | |
2686 | to guess whether or not we are building a shared library based on the | |
2687 | existence of a .interp section. */ | |
2688 | ||
b34976b6 | 2689 | static bfd_boolean |
22b05d33 | 2690 | elf64_hppa_modify_segment_map (bfd *abfd, struct bfd_link_info *info) |
15bda425 | 2691 | { |
edd21aca | 2692 | struct elf_segment_map *m; |
15bda425 | 2693 | |
22b05d33 AM |
2694 | m = elf_seg_map (abfd); |
2695 | if (info != NULL && !info->user_phdrs && m != NULL && m->p_type != PT_PHDR) | |
15bda425 | 2696 | { |
22b05d33 AM |
2697 | m = ((struct elf_segment_map *) |
2698 | bfd_zalloc (abfd, (bfd_size_type) sizeof *m)); | |
15bda425 | 2699 | if (m == NULL) |
22b05d33 | 2700 | return FALSE; |
15bda425 | 2701 | |
22b05d33 AM |
2702 | m->p_type = PT_PHDR; |
2703 | m->p_flags = PF_R | PF_X; | |
2704 | m->p_flags_valid = 1; | |
2705 | m->p_paddr_valid = 1; | |
2706 | m->includes_phdrs = 1; | |
15bda425 | 2707 | |
22b05d33 AM |
2708 | m->next = elf_seg_map (abfd); |
2709 | elf_seg_map (abfd) = m; | |
15bda425 JL |
2710 | } |
2711 | ||
22b05d33 | 2712 | for (m = elf_seg_map (abfd) ; m != NULL; m = m->next) |
15bda425 JL |
2713 | if (m->p_type == PT_LOAD) |
2714 | { | |
0ba2a60e | 2715 | unsigned int i; |
15bda425 JL |
2716 | |
2717 | for (i = 0; i < m->count; i++) | |
2718 | { | |
2719 | /* The code "hint" is not really a hint. It is a requirement | |
2720 | for certain versions of the HP dynamic linker. Worse yet, | |
2721 | it must be set even if the shared library does not have | |
2722 | any code in its "text" segment (thus the check for .hash | |
2723 | to catch this situation). */ | |
2724 | if (m->sections[i]->flags & SEC_CODE | |
2725 | || (strcmp (m->sections[i]->name, ".hash") == 0)) | |
2726 | m->p_flags |= (PF_X | PF_HP_CODE); | |
2727 | } | |
2728 | } | |
2729 | ||
b34976b6 | 2730 | return TRUE; |
15bda425 JL |
2731 | } |
2732 | ||
3fab46d0 AM |
2733 | /* Called when writing out an object file to decide the type of a |
2734 | symbol. */ | |
2735 | static int | |
813c8a3c DA |
2736 | elf64_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, |
2737 | int type) | |
3fab46d0 AM |
2738 | { |
2739 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
2740 | return STT_PARISC_MILLI; | |
2741 | else | |
2742 | return type; | |
2743 | } | |
2744 | ||
d97a8924 | 2745 | /* Support HP specific sections for core files. */ |
91d6fa6a | 2746 | |
d97a8924 | 2747 | static bfd_boolean |
91d6fa6a | 2748 | elf64_hppa_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int sec_index, |
d97a8924 DA |
2749 | const char *typename) |
2750 | { | |
927e625f MK |
2751 | if (hdr->p_type == PT_HP_CORE_KERNEL) |
2752 | { | |
2753 | asection *sect; | |
2754 | ||
91d6fa6a | 2755 | if (!_bfd_elf_make_section_from_phdr (abfd, hdr, sec_index, typename)) |
927e625f MK |
2756 | return FALSE; |
2757 | ||
2758 | sect = bfd_make_section_anyway (abfd, ".kernel"); | |
2759 | if (sect == NULL) | |
2760 | return FALSE; | |
2761 | sect->size = hdr->p_filesz; | |
2762 | sect->filepos = hdr->p_offset; | |
2763 | sect->flags = SEC_HAS_CONTENTS | SEC_READONLY; | |
2764 | return TRUE; | |
2765 | } | |
2766 | ||
d97a8924 DA |
2767 | if (hdr->p_type == PT_HP_CORE_PROC) |
2768 | { | |
2769 | int sig; | |
2770 | ||
2771 | if (bfd_seek (abfd, hdr->p_offset, SEEK_SET) != 0) | |
2772 | return FALSE; | |
2773 | if (bfd_bread (&sig, 4, abfd) != 4) | |
2774 | return FALSE; | |
2775 | ||
228e534f | 2776 | elf_tdata (abfd)->core->signal = sig; |
d97a8924 | 2777 | |
91d6fa6a | 2778 | if (!_bfd_elf_make_section_from_phdr (abfd, hdr, sec_index, typename)) |
d97a8924 | 2779 | return FALSE; |
927e625f MK |
2780 | |
2781 | /* GDB uses the ".reg" section to read register contents. */ | |
2782 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", hdr->p_filesz, | |
2783 | hdr->p_offset); | |
d97a8924 DA |
2784 | } |
2785 | ||
2786 | if (hdr->p_type == PT_HP_CORE_LOADABLE | |
2787 | || hdr->p_type == PT_HP_CORE_STACK | |
2788 | || hdr->p_type == PT_HP_CORE_MMF) | |
2789 | hdr->p_type = PT_LOAD; | |
2790 | ||
91d6fa6a | 2791 | return _bfd_elf_make_section_from_phdr (abfd, hdr, sec_index, typename); |
d97a8924 DA |
2792 | } |
2793 | ||
5887528b DA |
2794 | /* Hook called by the linker routine which adds symbols from an object |
2795 | file. HP's libraries define symbols with HP specific section | |
2796 | indices, which we have to handle. */ | |
2797 | ||
2798 | static bfd_boolean | |
2799 | elf_hppa_add_symbol_hook (bfd *abfd, | |
2800 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
2801 | Elf_Internal_Sym *sym, | |
2802 | const char **namep ATTRIBUTE_UNUSED, | |
2803 | flagword *flagsp ATTRIBUTE_UNUSED, | |
2804 | asection **secp, | |
2805 | bfd_vma *valp) | |
2806 | { | |
91d6fa6a | 2807 | unsigned int sec_index = sym->st_shndx; |
5887528b | 2808 | |
91d6fa6a | 2809 | switch (sec_index) |
5887528b DA |
2810 | { |
2811 | case SHN_PARISC_ANSI_COMMON: | |
2812 | *secp = bfd_make_section_old_way (abfd, ".PARISC.ansi.common"); | |
2813 | (*secp)->flags |= SEC_IS_COMMON; | |
2814 | *valp = sym->st_size; | |
2815 | break; | |
2816 | ||
2817 | case SHN_PARISC_HUGE_COMMON: | |
2818 | *secp = bfd_make_section_old_way (abfd, ".PARISC.huge.common"); | |
2819 | (*secp)->flags |= SEC_IS_COMMON; | |
2820 | *valp = sym->st_size; | |
2821 | break; | |
2822 | } | |
2823 | ||
2824 | return TRUE; | |
2825 | } | |
2826 | ||
2827 | static bfd_boolean | |
2828 | elf_hppa_unmark_useless_dynamic_symbols (struct elf_link_hash_entry *h, | |
2829 | void *data) | |
2830 | { | |
2831 | struct bfd_link_info *info = data; | |
2832 | ||
5887528b DA |
2833 | /* If we are not creating a shared library, and this symbol is |
2834 | referenced by a shared library but is not defined anywhere, then | |
2835 | the generic code will warn that it is undefined. | |
2836 | ||
2837 | This behavior is undesirable on HPs since the standard shared | |
2838 | libraries contain references to undefined symbols. | |
2839 | ||
2840 | So we twiddle the flags associated with such symbols so that they | |
2841 | will not trigger the warning. ?!? FIXME. This is horribly fragile. | |
2842 | ||
2843 | Ultimately we should have better controls over the generic ELF BFD | |
2844 | linker code. */ | |
0e1862bb | 2845 | if (! bfd_link_relocatable (info) |
5887528b DA |
2846 | && info->unresolved_syms_in_shared_libs != RM_IGNORE |
2847 | && h->root.type == bfd_link_hash_undefined | |
2848 | && h->ref_dynamic | |
2849 | && !h->ref_regular) | |
2850 | { | |
2851 | h->ref_dynamic = 0; | |
2852 | h->pointer_equality_needed = 1; | |
2853 | } | |
2854 | ||
2855 | return TRUE; | |
2856 | } | |
2857 | ||
2858 | static bfd_boolean | |
2859 | elf_hppa_remark_useless_dynamic_symbols (struct elf_link_hash_entry *h, | |
2860 | void *data) | |
2861 | { | |
2862 | struct bfd_link_info *info = data; | |
2863 | ||
5887528b DA |
2864 | /* If we are not creating a shared library, and this symbol is |
2865 | referenced by a shared library but is not defined anywhere, then | |
2866 | the generic code will warn that it is undefined. | |
2867 | ||
2868 | This behavior is undesirable on HPs since the standard shared | |
2869 | libraries contain references to undefined symbols. | |
2870 | ||
2871 | So we twiddle the flags associated with such symbols so that they | |
2872 | will not trigger the warning. ?!? FIXME. This is horribly fragile. | |
2873 | ||
2874 | Ultimately we should have better controls over the generic ELF BFD | |
2875 | linker code. */ | |
0e1862bb | 2876 | if (! bfd_link_relocatable (info) |
5887528b DA |
2877 | && info->unresolved_syms_in_shared_libs != RM_IGNORE |
2878 | && h->root.type == bfd_link_hash_undefined | |
2879 | && !h->ref_dynamic | |
2880 | && !h->ref_regular | |
2881 | && h->pointer_equality_needed) | |
2882 | { | |
2883 | h->ref_dynamic = 1; | |
2884 | h->pointer_equality_needed = 0; | |
2885 | } | |
2886 | ||
2887 | return TRUE; | |
2888 | } | |
2889 | ||
2890 | static bfd_boolean | |
2891 | elf_hppa_is_dynamic_loader_symbol (const char *name) | |
2892 | { | |
2893 | return (! strcmp (name, "__CPU_REVISION") | |
2894 | || ! strcmp (name, "__CPU_KEYBITS_1") | |
2895 | || ! strcmp (name, "__SYSTEM_ID_D") | |
2896 | || ! strcmp (name, "__FPU_MODEL") | |
2897 | || ! strcmp (name, "__FPU_REVISION") | |
2898 | || ! strcmp (name, "__ARGC") | |
2899 | || ! strcmp (name, "__ARGV") | |
2900 | || ! strcmp (name, "__ENVP") | |
2901 | || ! strcmp (name, "__TLS_SIZE_D") | |
2902 | || ! strcmp (name, "__LOAD_INFO") | |
2903 | || ! strcmp (name, "__systab")); | |
2904 | } | |
2905 | ||
2906 | /* Record the lowest address for the data and text segments. */ | |
2907 | static void | |
2908 | elf_hppa_record_segment_addrs (bfd *abfd, | |
2909 | asection *section, | |
2910 | void *data) | |
2911 | { | |
2912 | struct elf64_hppa_link_hash_table *hppa_info = data; | |
2913 | ||
2914 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
2915 | { | |
2916 | bfd_vma value; | |
2917 | Elf_Internal_Phdr *p; | |
2918 | ||
2919 | p = _bfd_elf_find_segment_containing_section (abfd, section->output_section); | |
2920 | BFD_ASSERT (p != NULL); | |
2921 | value = p->p_vaddr; | |
2922 | ||
2923 | if (section->flags & SEC_READONLY) | |
2924 | { | |
2925 | if (value < hppa_info->text_segment_base) | |
2926 | hppa_info->text_segment_base = value; | |
2927 | } | |
2928 | else | |
2929 | { | |
2930 | if (value < hppa_info->data_segment_base) | |
2931 | hppa_info->data_segment_base = value; | |
2932 | } | |
2933 | } | |
2934 | } | |
2935 | ||
2936 | /* Called after we have seen all the input files/sections, but before | |
2937 | final symbol resolution and section placement has been determined. | |
2938 | ||
2939 | We use this hook to (possibly) provide a value for __gp, then we | |
2940 | fall back to the generic ELF final link routine. */ | |
2941 | ||
2942 | static bfd_boolean | |
2943 | elf_hppa_final_link (bfd *abfd, struct bfd_link_info *info) | |
2944 | { | |
6d4b2867 | 2945 | struct stat buf; |
5887528b DA |
2946 | struct elf64_hppa_link_hash_table *hppa_info = hppa_link_hash_table (info); |
2947 | ||
4dfe6ac6 NC |
2948 | if (hppa_info == NULL) |
2949 | return FALSE; | |
2950 | ||
0e1862bb | 2951 | if (! bfd_link_relocatable (info)) |
5887528b DA |
2952 | { |
2953 | struct elf_link_hash_entry *gp; | |
2954 | bfd_vma gp_val; | |
2955 | ||
2956 | /* The linker script defines a value for __gp iff it was referenced | |
2957 | by one of the objects being linked. First try to find the symbol | |
2958 | in the hash table. If that fails, just compute the value __gp | |
2959 | should have had. */ | |
2960 | gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE, | |
2961 | FALSE, FALSE); | |
2962 | ||
2963 | if (gp) | |
2964 | { | |
2965 | ||
2966 | /* Adjust the value of __gp as we may want to slide it into the | |
2967 | .plt section so that the stubs can access PLT entries without | |
2968 | using an addil sequence. */ | |
2969 | gp->root.u.def.value += hppa_info->gp_offset; | |
2970 | ||
2971 | gp_val = (gp->root.u.def.section->output_section->vma | |
2972 | + gp->root.u.def.section->output_offset | |
2973 | + gp->root.u.def.value); | |
2974 | } | |
2975 | else | |
2976 | { | |
2977 | asection *sec; | |
2978 | ||
2979 | /* First look for a .plt section. If found, then __gp is the | |
2980 | address of the .plt + gp_offset. | |
2981 | ||
2982 | If no .plt is found, then look for .dlt, .opd and .data (in | |
2983 | that order) and set __gp to the base address of whichever | |
2984 | section is found first. */ | |
2985 | ||
2986 | sec = hppa_info->plt_sec; | |
2987 | if (sec && ! (sec->flags & SEC_EXCLUDE)) | |
2988 | gp_val = (sec->output_offset | |
2989 | + sec->output_section->vma | |
2990 | + hppa_info->gp_offset); | |
2991 | else | |
2992 | { | |
2993 | sec = hppa_info->dlt_sec; | |
2994 | if (!sec || (sec->flags & SEC_EXCLUDE)) | |
2995 | sec = hppa_info->opd_sec; | |
2996 | if (!sec || (sec->flags & SEC_EXCLUDE)) | |
2997 | sec = bfd_get_section_by_name (abfd, ".data"); | |
2998 | if (!sec || (sec->flags & SEC_EXCLUDE)) | |
2999 | gp_val = 0; | |
3000 | else | |
3001 | gp_val = sec->output_offset + sec->output_section->vma; | |
3002 | } | |
3003 | } | |
3004 | ||
3005 | /* Install whatever value we found/computed for __gp. */ | |
3006 | _bfd_set_gp_value (abfd, gp_val); | |
3007 | } | |
3008 | ||
3009 | /* We need to know the base of the text and data segments so that we | |
3010 | can perform SEGREL relocations. We will record the base addresses | |
3011 | when we encounter the first SEGREL relocation. */ | |
3012 | hppa_info->text_segment_base = (bfd_vma)-1; | |
3013 | hppa_info->data_segment_base = (bfd_vma)-1; | |
3014 | ||
3015 | /* HP's shared libraries have references to symbols that are not | |
3016 | defined anywhere. The generic ELF BFD linker code will complain | |
3017 | about such symbols. | |
3018 | ||
3019 | So we detect the losing case and arrange for the flags on the symbol | |
3020 | to indicate that it was never referenced. This keeps the generic | |
3021 | ELF BFD link code happy and appears to not create any secondary | |
3022 | problems. Ultimately we need a way to control the behavior of the | |
3023 | generic ELF BFD link code better. */ | |
3024 | elf_link_hash_traverse (elf_hash_table (info), | |
3025 | elf_hppa_unmark_useless_dynamic_symbols, | |
3026 | info); | |
3027 | ||
3028 | /* Invoke the regular ELF backend linker to do all the work. */ | |
6d4b2867 JDA |
3029 | if (!bfd_elf_final_link (abfd, info)) |
3030 | return FALSE; | |
5887528b DA |
3031 | |
3032 | elf_link_hash_traverse (elf_hash_table (info), | |
3033 | elf_hppa_remark_useless_dynamic_symbols, | |
3034 | info); | |
3035 | ||
3036 | /* If we're producing a final executable, sort the contents of the | |
3037 | unwind section. */ | |
6d4b2867 JDA |
3038 | if (bfd_link_relocatable (info)) |
3039 | return TRUE; | |
3040 | ||
3041 | /* Do not attempt to sort non-regular files. This is here | |
3042 | especially for configure scripts and kernel builds which run | |
3043 | tests with "ld [...] -o /dev/null". */ | |
3044 | if (stat (abfd->filename, &buf) != 0 | |
3045 | || !S_ISREG(buf.st_mode)) | |
3046 | return TRUE; | |
5887528b | 3047 | |
6d4b2867 | 3048 | return elf_hppa_sort_unwind (abfd); |
5887528b DA |
3049 | } |
3050 | ||
3051 | /* Relocate the given INSN. VALUE should be the actual value we want | |
3052 | to insert into the instruction, ie by this point we should not be | |
3053 | concerned with computing an offset relative to the DLT, PC, etc. | |
3054 | Instead this routine is meant to handle the bit manipulations needed | |
3055 | to insert the relocation into the given instruction. */ | |
3056 | ||
3057 | static int | |
3058 | elf_hppa_relocate_insn (int insn, int sym_value, unsigned int r_type) | |
3059 | { | |
3060 | switch (r_type) | |
3061 | { | |
3062 | /* This is any 22 bit branch. In PA2.0 syntax it corresponds to | |
3063 | the "B" instruction. */ | |
3064 | case R_PARISC_PCREL22F: | |
3065 | case R_PARISC_PCREL22C: | |
3066 | return (insn & ~0x3ff1ffd) | re_assemble_22 (sym_value); | |
3067 | ||
3068 | /* This is any 12 bit branch. */ | |
3069 | case R_PARISC_PCREL12F: | |
3070 | return (insn & ~0x1ffd) | re_assemble_12 (sym_value); | |
3071 | ||
3072 | /* This is any 17 bit branch. In PA2.0 syntax it also corresponds | |
3073 | to the "B" instruction as well as BE. */ | |
3074 | case R_PARISC_PCREL17F: | |
3075 | case R_PARISC_DIR17F: | |
3076 | case R_PARISC_DIR17R: | |
3077 | case R_PARISC_PCREL17C: | |
3078 | case R_PARISC_PCREL17R: | |
3079 | return (insn & ~0x1f1ffd) | re_assemble_17 (sym_value); | |
3080 | ||
3081 | /* ADDIL or LDIL instructions. */ | |
3082 | case R_PARISC_DLTREL21L: | |
3083 | case R_PARISC_DLTIND21L: | |
3084 | case R_PARISC_LTOFF_FPTR21L: | |
3085 | case R_PARISC_PCREL21L: | |
3086 | case R_PARISC_LTOFF_TP21L: | |
3087 | case R_PARISC_DPREL21L: | |
3088 | case R_PARISC_PLTOFF21L: | |
3089 | case R_PARISC_DIR21L: | |
3090 | return (insn & ~0x1fffff) | re_assemble_21 (sym_value); | |
3091 | ||
3092 | /* LDO and integer loads/stores with 14 bit displacements. */ | |
3093 | case R_PARISC_DLTREL14R: | |
3094 | case R_PARISC_DLTREL14F: | |
3095 | case R_PARISC_DLTIND14R: | |
3096 | case R_PARISC_DLTIND14F: | |
3097 | case R_PARISC_LTOFF_FPTR14R: | |
3098 | case R_PARISC_PCREL14R: | |
3099 | case R_PARISC_PCREL14F: | |
3100 | case R_PARISC_LTOFF_TP14R: | |
3101 | case R_PARISC_LTOFF_TP14F: | |
3102 | case R_PARISC_DPREL14R: | |
3103 | case R_PARISC_DPREL14F: | |
3104 | case R_PARISC_PLTOFF14R: | |
3105 | case R_PARISC_PLTOFF14F: | |
3106 | case R_PARISC_DIR14R: | |
3107 | case R_PARISC_DIR14F: | |
3108 | return (insn & ~0x3fff) | low_sign_unext (sym_value, 14); | |
3109 | ||
3110 | /* PA2.0W LDO and integer loads/stores with 16 bit displacements. */ | |
3111 | case R_PARISC_LTOFF_FPTR16F: | |
3112 | case R_PARISC_PCREL16F: | |
3113 | case R_PARISC_LTOFF_TP16F: | |
3114 | case R_PARISC_GPREL16F: | |
3115 | case R_PARISC_PLTOFF16F: | |
3116 | case R_PARISC_DIR16F: | |
3117 | case R_PARISC_LTOFF16F: | |
3118 | return (insn & ~0xffff) | re_assemble_16 (sym_value); | |
3119 | ||
3120 | /* Doubleword loads and stores with a 14 bit displacement. */ | |
3121 | case R_PARISC_DLTREL14DR: | |
3122 | case R_PARISC_DLTIND14DR: | |
3123 | case R_PARISC_LTOFF_FPTR14DR: | |
3124 | case R_PARISC_LTOFF_FPTR16DF: | |
3125 | case R_PARISC_PCREL14DR: | |
3126 | case R_PARISC_PCREL16DF: | |
3127 | case R_PARISC_LTOFF_TP14DR: | |
3128 | case R_PARISC_LTOFF_TP16DF: | |
3129 | case R_PARISC_DPREL14DR: | |
3130 | case R_PARISC_GPREL16DF: | |
3131 | case R_PARISC_PLTOFF14DR: | |
3132 | case R_PARISC_PLTOFF16DF: | |
3133 | case R_PARISC_DIR14DR: | |
3134 | case R_PARISC_DIR16DF: | |
3135 | case R_PARISC_LTOFF16DF: | |
3136 | return (insn & ~0x3ff1) | (((sym_value & 0x2000) >> 13) | |
3137 | | ((sym_value & 0x1ff8) << 1)); | |
3138 | ||
3139 | /* Floating point single word load/store instructions. */ | |
3140 | case R_PARISC_DLTREL14WR: | |
3141 | case R_PARISC_DLTIND14WR: | |
3142 | case R_PARISC_LTOFF_FPTR14WR: | |
3143 | case R_PARISC_LTOFF_FPTR16WF: | |
3144 | case R_PARISC_PCREL14WR: | |
3145 | case R_PARISC_PCREL16WF: | |
3146 | case R_PARISC_LTOFF_TP14WR: | |
3147 | case R_PARISC_LTOFF_TP16WF: | |
3148 | case R_PARISC_DPREL14WR: | |
3149 | case R_PARISC_GPREL16WF: | |
3150 | case R_PARISC_PLTOFF14WR: | |
3151 | case R_PARISC_PLTOFF16WF: | |
3152 | case R_PARISC_DIR16WF: | |
3153 | case R_PARISC_DIR14WR: | |
3154 | case R_PARISC_LTOFF16WF: | |
3155 | return (insn & ~0x3ff9) | (((sym_value & 0x2000) >> 13) | |
3156 | | ((sym_value & 0x1ffc) << 1)); | |
3157 | ||
3158 | default: | |
3159 | return insn; | |
3160 | } | |
3161 | } | |
3162 | ||
3163 | /* Compute the value for a relocation (REL) during a final link stage, | |
3164 | then insert the value into the proper location in CONTENTS. | |
3165 | ||
3166 | VALUE is a tentative value for the relocation and may be overridden | |
3167 | and modified here based on the specific relocation to be performed. | |
3168 | ||
3169 | For example we do conversions for PC-relative branches in this routine | |
3170 | or redirection of calls to external routines to stubs. | |
3171 | ||
3172 | The work of actually applying the relocation is left to a helper | |
3173 | routine in an attempt to reduce the complexity and size of this | |
3174 | function. */ | |
3175 | ||
3176 | static bfd_reloc_status_type | |
3177 | elf_hppa_final_link_relocate (Elf_Internal_Rela *rel, | |
3178 | bfd *input_bfd, | |
3179 | bfd *output_bfd, | |
3180 | asection *input_section, | |
3181 | bfd_byte *contents, | |
3182 | bfd_vma value, | |
3183 | struct bfd_link_info *info, | |
3184 | asection *sym_sec, | |
3185 | struct elf_link_hash_entry *eh) | |
3186 | { | |
3187 | struct elf64_hppa_link_hash_table *hppa_info = hppa_link_hash_table (info); | |
3188 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); | |
3189 | bfd_vma *local_offsets; | |
3190 | Elf_Internal_Shdr *symtab_hdr; | |
3191 | int insn; | |
3192 | bfd_vma max_branch_offset = 0; | |
3193 | bfd_vma offset = rel->r_offset; | |
3194 | bfd_signed_vma addend = rel->r_addend; | |
3195 | reloc_howto_type *howto = elf_hppa_howto_table + ELF_R_TYPE (rel->r_info); | |
3196 | unsigned int r_symndx = ELF_R_SYM (rel->r_info); | |
3197 | unsigned int r_type = howto->type; | |
3198 | bfd_byte *hit_data = contents + offset; | |
3199 | ||
4dfe6ac6 NC |
3200 | if (hppa_info == NULL) |
3201 | return bfd_reloc_notsupported; | |
68ffbac6 | 3202 | |
5887528b DA |
3203 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
3204 | local_offsets = elf_local_got_offsets (input_bfd); | |
3205 | insn = bfd_get_32 (input_bfd, hit_data); | |
3206 | ||
3207 | switch (r_type) | |
3208 | { | |
3209 | case R_PARISC_NONE: | |
3210 | break; | |
3211 | ||
3212 | /* Basic function call support. | |
3213 | ||
3214 | Note for a call to a function defined in another dynamic library | |
3215 | we want to redirect the call to a stub. */ | |
3216 | ||
3217 | /* PC relative relocs without an implicit offset. */ | |
3218 | case R_PARISC_PCREL21L: | |
3219 | case R_PARISC_PCREL14R: | |
3220 | case R_PARISC_PCREL14F: | |
3221 | case R_PARISC_PCREL14WR: | |
3222 | case R_PARISC_PCREL14DR: | |
3223 | case R_PARISC_PCREL16F: | |
3224 | case R_PARISC_PCREL16WF: | |
3225 | case R_PARISC_PCREL16DF: | |
3226 | { | |
3227 | /* If this is a call to a function defined in another dynamic | |
3228 | library, then redirect the call to the local stub for this | |
3229 | function. */ | |
3230 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3231 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3232 | + hppa_info->stub_sec->output_section->vma); | |
3233 | ||
3234 | /* Turn VALUE into a proper PC relative address. */ | |
3235 | value -= (offset + input_section->output_offset | |
3236 | + input_section->output_section->vma); | |
3237 | ||
3238 | /* Adjust for any field selectors. */ | |
3239 | if (r_type == R_PARISC_PCREL21L) | |
3240 | value = hppa_field_adjust (value, -8 + addend, e_lsel); | |
3241 | else if (r_type == R_PARISC_PCREL14F | |
3242 | || r_type == R_PARISC_PCREL16F | |
3243 | || r_type == R_PARISC_PCREL16WF | |
3244 | || r_type == R_PARISC_PCREL16DF) | |
3245 | value = hppa_field_adjust (value, -8 + addend, e_fsel); | |
3246 | else | |
3247 | value = hppa_field_adjust (value, -8 + addend, e_rsel); | |
3248 | ||
3249 | /* Apply the relocation to the given instruction. */ | |
3250 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3251 | break; | |
3252 | } | |
3253 | ||
3254 | case R_PARISC_PCREL12F: | |
3255 | case R_PARISC_PCREL22F: | |
3256 | case R_PARISC_PCREL17F: | |
3257 | case R_PARISC_PCREL22C: | |
3258 | case R_PARISC_PCREL17C: | |
3259 | case R_PARISC_PCREL17R: | |
3260 | { | |
3261 | /* If this is a call to a function defined in another dynamic | |
3262 | library, then redirect the call to the local stub for this | |
3263 | function. */ | |
3264 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3265 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3266 | + hppa_info->stub_sec->output_section->vma); | |
3267 | ||
3268 | /* Turn VALUE into a proper PC relative address. */ | |
3269 | value -= (offset + input_section->output_offset | |
3270 | + input_section->output_section->vma); | |
3271 | addend -= 8; | |
3272 | ||
3273 | if (r_type == (unsigned int) R_PARISC_PCREL22F) | |
3274 | max_branch_offset = (1 << (22-1)) << 2; | |
3275 | else if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3276 | max_branch_offset = (1 << (17-1)) << 2; | |
3277 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3278 | max_branch_offset = (1 << (12-1)) << 2; | |
3279 | ||
3280 | /* Make sure we can reach the branch target. */ | |
3281 | if (max_branch_offset != 0 | |
3282 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3283 | { | |
4eca0228 | 3284 | _bfd_error_handler |
695344c0 | 3285 | /* xgettext:c-format */ |
d42c267e | 3286 | (_("%B(%A+%#Lx): cannot reach %s"), |
5887528b DA |
3287 | input_bfd, |
3288 | input_section, | |
3289 | offset, | |
d91a6875 | 3290 | eh ? eh->root.root.string : "unknown"); |
5887528b | 3291 | bfd_set_error (bfd_error_bad_value); |
d91a6875 | 3292 | return bfd_reloc_overflow; |
5887528b DA |
3293 | } |
3294 | ||
3295 | /* Adjust for any field selectors. */ | |
3296 | if (r_type == R_PARISC_PCREL17R) | |
3297 | value = hppa_field_adjust (value, addend, e_rsel); | |
3298 | else | |
3299 | value = hppa_field_adjust (value, addend, e_fsel); | |
3300 | ||
3301 | /* All branches are implicitly shifted by 2 places. */ | |
3302 | value >>= 2; | |
3303 | ||
3304 | /* Apply the relocation to the given instruction. */ | |
3305 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3306 | break; | |
3307 | } | |
3308 | ||
3309 | /* Indirect references to data through the DLT. */ | |
3310 | case R_PARISC_DLTIND14R: | |
3311 | case R_PARISC_DLTIND14F: | |
3312 | case R_PARISC_DLTIND14DR: | |
3313 | case R_PARISC_DLTIND14WR: | |
3314 | case R_PARISC_DLTIND21L: | |
3315 | case R_PARISC_LTOFF_FPTR14R: | |
3316 | case R_PARISC_LTOFF_FPTR14DR: | |
3317 | case R_PARISC_LTOFF_FPTR14WR: | |
3318 | case R_PARISC_LTOFF_FPTR21L: | |
3319 | case R_PARISC_LTOFF_FPTR16F: | |
3320 | case R_PARISC_LTOFF_FPTR16WF: | |
3321 | case R_PARISC_LTOFF_FPTR16DF: | |
3322 | case R_PARISC_LTOFF_TP21L: | |
3323 | case R_PARISC_LTOFF_TP14R: | |
3324 | case R_PARISC_LTOFF_TP14F: | |
3325 | case R_PARISC_LTOFF_TP14WR: | |
3326 | case R_PARISC_LTOFF_TP14DR: | |
3327 | case R_PARISC_LTOFF_TP16F: | |
3328 | case R_PARISC_LTOFF_TP16WF: | |
3329 | case R_PARISC_LTOFF_TP16DF: | |
3330 | case R_PARISC_LTOFF16F: | |
3331 | case R_PARISC_LTOFF16WF: | |
3332 | case R_PARISC_LTOFF16DF: | |
3333 | { | |
3334 | bfd_vma off; | |
3335 | ||
3336 | /* If this relocation was against a local symbol, then we still | |
3337 | have not set up the DLT entry (it's not convenient to do so | |
3338 | in the "finalize_dlt" routine because it is difficult to get | |
3339 | to the local symbol's value). | |
3340 | ||
3341 | So, if this is a local symbol (h == NULL), then we need to | |
3342 | fill in its DLT entry. | |
3343 | ||
3344 | Similarly we may still need to set up an entry in .opd for | |
3345 | a local function which had its address taken. */ | |
3346 | if (hh == NULL) | |
3347 | { | |
3348 | bfd_vma *local_opd_offsets, *local_dlt_offsets; | |
3349 | ||
3350 | if (local_offsets == NULL) | |
3351 | abort (); | |
3352 | ||
3353 | /* Now do .opd creation if needed. */ | |
3354 | if (r_type == R_PARISC_LTOFF_FPTR14R | |
3355 | || r_type == R_PARISC_LTOFF_FPTR14DR | |
3356 | || r_type == R_PARISC_LTOFF_FPTR14WR | |
3357 | || r_type == R_PARISC_LTOFF_FPTR21L | |
3358 | || r_type == R_PARISC_LTOFF_FPTR16F | |
3359 | || r_type == R_PARISC_LTOFF_FPTR16WF | |
3360 | || r_type == R_PARISC_LTOFF_FPTR16DF) | |
3361 | { | |
3362 | local_opd_offsets = local_offsets + 2 * symtab_hdr->sh_info; | |
3363 | off = local_opd_offsets[r_symndx]; | |
3364 | ||
3365 | /* The last bit records whether we've already initialised | |
3366 | this local .opd entry. */ | |
3367 | if ((off & 1) != 0) | |
3368 | { | |
3369 | BFD_ASSERT (off != (bfd_vma) -1); | |
3370 | off &= ~1; | |
3371 | } | |
3372 | else | |
3373 | { | |
3374 | local_opd_offsets[r_symndx] |= 1; | |
3375 | ||
3376 | /* The first two words of an .opd entry are zero. */ | |
3377 | memset (hppa_info->opd_sec->contents + off, 0, 16); | |
3378 | ||
3379 | /* The next word is the address of the function. */ | |
3380 | bfd_put_64 (hppa_info->opd_sec->owner, value + addend, | |
3381 | (hppa_info->opd_sec->contents + off + 16)); | |
3382 | ||
3383 | /* The last word is our local __gp value. */ | |
3384 | value = _bfd_get_gp_value | |
3385 | (hppa_info->opd_sec->output_section->owner); | |
3386 | bfd_put_64 (hppa_info->opd_sec->owner, value, | |
3387 | (hppa_info->opd_sec->contents + off + 24)); | |
3388 | } | |
3389 | ||
3390 | /* The DLT value is the address of the .opd entry. */ | |
3391 | value = (off | |
3392 | + hppa_info->opd_sec->output_offset | |
3393 | + hppa_info->opd_sec->output_section->vma); | |
3394 | addend = 0; | |
3395 | } | |
3396 | ||
3397 | local_dlt_offsets = local_offsets; | |
3398 | off = local_dlt_offsets[r_symndx]; | |
3399 | ||
3400 | if ((off & 1) != 0) | |
3401 | { | |
3402 | BFD_ASSERT (off != (bfd_vma) -1); | |
3403 | off &= ~1; | |
3404 | } | |
3405 | else | |
3406 | { | |
3407 | local_dlt_offsets[r_symndx] |= 1; | |
3408 | bfd_put_64 (hppa_info->dlt_sec->owner, | |
3409 | value + addend, | |
3410 | hppa_info->dlt_sec->contents + off); | |
3411 | } | |
3412 | } | |
3413 | else | |
3414 | off = hh->dlt_offset; | |
3415 | ||
3416 | /* We want the value of the DLT offset for this symbol, not | |
3417 | the symbol's actual address. Note that __gp may not point | |
3418 | to the start of the DLT, so we have to compute the absolute | |
3419 | address, then subtract out the value of __gp. */ | |
3420 | value = (off | |
3421 | + hppa_info->dlt_sec->output_offset | |
3422 | + hppa_info->dlt_sec->output_section->vma); | |
3423 | value -= _bfd_get_gp_value (output_bfd); | |
3424 | ||
3425 | /* All DLTIND relocations are basically the same at this point, | |
3426 | except that we need different field selectors for the 21bit | |
3427 | version vs the 14bit versions. */ | |
3428 | if (r_type == R_PARISC_DLTIND21L | |
3429 | || r_type == R_PARISC_LTOFF_FPTR21L | |
3430 | || r_type == R_PARISC_LTOFF_TP21L) | |
3431 | value = hppa_field_adjust (value, 0, e_lsel); | |
3432 | else if (r_type == R_PARISC_DLTIND14F | |
3433 | || r_type == R_PARISC_LTOFF_FPTR16F | |
3434 | || r_type == R_PARISC_LTOFF_FPTR16WF | |
3435 | || r_type == R_PARISC_LTOFF_FPTR16DF | |
3436 | || r_type == R_PARISC_LTOFF16F | |
3437 | || r_type == R_PARISC_LTOFF16DF | |
3438 | || r_type == R_PARISC_LTOFF16WF | |
3439 | || r_type == R_PARISC_LTOFF_TP16F | |
3440 | || r_type == R_PARISC_LTOFF_TP16WF | |
3441 | || r_type == R_PARISC_LTOFF_TP16DF) | |
3442 | value = hppa_field_adjust (value, 0, e_fsel); | |
3443 | else | |
3444 | value = hppa_field_adjust (value, 0, e_rsel); | |
3445 | ||
3446 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3447 | break; | |
3448 | } | |
3449 | ||
3450 | case R_PARISC_DLTREL14R: | |
3451 | case R_PARISC_DLTREL14F: | |
3452 | case R_PARISC_DLTREL14DR: | |
3453 | case R_PARISC_DLTREL14WR: | |
3454 | case R_PARISC_DLTREL21L: | |
3455 | case R_PARISC_DPREL21L: | |
3456 | case R_PARISC_DPREL14WR: | |
3457 | case R_PARISC_DPREL14DR: | |
3458 | case R_PARISC_DPREL14R: | |
3459 | case R_PARISC_DPREL14F: | |
3460 | case R_PARISC_GPREL16F: | |
3461 | case R_PARISC_GPREL16WF: | |
3462 | case R_PARISC_GPREL16DF: | |
3463 | { | |
3464 | /* Subtract out the global pointer value to make value a DLT | |
3465 | relative address. */ | |
3466 | value -= _bfd_get_gp_value (output_bfd); | |
3467 | ||
3468 | /* All DLTREL relocations are basically the same at this point, | |
3469 | except that we need different field selectors for the 21bit | |
3470 | version vs the 14bit versions. */ | |
3471 | if (r_type == R_PARISC_DLTREL21L | |
3472 | || r_type == R_PARISC_DPREL21L) | |
3473 | value = hppa_field_adjust (value, addend, e_lrsel); | |
3474 | else if (r_type == R_PARISC_DLTREL14F | |
3475 | || r_type == R_PARISC_DPREL14F | |
3476 | || r_type == R_PARISC_GPREL16F | |
3477 | || r_type == R_PARISC_GPREL16WF | |
3478 | || r_type == R_PARISC_GPREL16DF) | |
3479 | value = hppa_field_adjust (value, addend, e_fsel); | |
3480 | else | |
3481 | value = hppa_field_adjust (value, addend, e_rrsel); | |
3482 | ||
3483 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3484 | break; | |
3485 | } | |
3486 | ||
3487 | case R_PARISC_DIR21L: | |
3488 | case R_PARISC_DIR17R: | |
3489 | case R_PARISC_DIR17F: | |
3490 | case R_PARISC_DIR14R: | |
3491 | case R_PARISC_DIR14F: | |
3492 | case R_PARISC_DIR14WR: | |
3493 | case R_PARISC_DIR14DR: | |
3494 | case R_PARISC_DIR16F: | |
3495 | case R_PARISC_DIR16WF: | |
3496 | case R_PARISC_DIR16DF: | |
3497 | { | |
3498 | /* All DIR relocations are basically the same at this point, | |
3499 | except that branch offsets need to be divided by four, and | |
3500 | we need different field selectors. Note that we don't | |
3501 | redirect absolute calls to local stubs. */ | |
3502 | ||
3503 | if (r_type == R_PARISC_DIR21L) | |
3504 | value = hppa_field_adjust (value, addend, e_lrsel); | |
3505 | else if (r_type == R_PARISC_DIR17F | |
3506 | || r_type == R_PARISC_DIR16F | |
3507 | || r_type == R_PARISC_DIR16WF | |
3508 | || r_type == R_PARISC_DIR16DF | |
3509 | || r_type == R_PARISC_DIR14F) | |
3510 | value = hppa_field_adjust (value, addend, e_fsel); | |
3511 | else | |
3512 | value = hppa_field_adjust (value, addend, e_rrsel); | |
3513 | ||
3514 | if (r_type == R_PARISC_DIR17R || r_type == R_PARISC_DIR17F) | |
3515 | /* All branches are implicitly shifted by 2 places. */ | |
3516 | value >>= 2; | |
3517 | ||
3518 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3519 | break; | |
3520 | } | |
3521 | ||
3522 | case R_PARISC_PLTOFF21L: | |
3523 | case R_PARISC_PLTOFF14R: | |
3524 | case R_PARISC_PLTOFF14F: | |
3525 | case R_PARISC_PLTOFF14WR: | |
3526 | case R_PARISC_PLTOFF14DR: | |
3527 | case R_PARISC_PLTOFF16F: | |
3528 | case R_PARISC_PLTOFF16WF: | |
3529 | case R_PARISC_PLTOFF16DF: | |
3530 | { | |
3531 | /* We want the value of the PLT offset for this symbol, not | |
3532 | the symbol's actual address. Note that __gp may not point | |
3533 | to the start of the DLT, so we have to compute the absolute | |
3534 | address, then subtract out the value of __gp. */ | |
3535 | value = (hh->plt_offset | |
3536 | + hppa_info->plt_sec->output_offset | |
3537 | + hppa_info->plt_sec->output_section->vma); | |
3538 | value -= _bfd_get_gp_value (output_bfd); | |
3539 | ||
3540 | /* All PLTOFF relocations are basically the same at this point, | |
3541 | except that we need different field selectors for the 21bit | |
3542 | version vs the 14bit versions. */ | |
3543 | if (r_type == R_PARISC_PLTOFF21L) | |
3544 | value = hppa_field_adjust (value, addend, e_lrsel); | |
3545 | else if (r_type == R_PARISC_PLTOFF14F | |
3546 | || r_type == R_PARISC_PLTOFF16F | |
3547 | || r_type == R_PARISC_PLTOFF16WF | |
3548 | || r_type == R_PARISC_PLTOFF16DF) | |
3549 | value = hppa_field_adjust (value, addend, e_fsel); | |
3550 | else | |
3551 | value = hppa_field_adjust (value, addend, e_rrsel); | |
3552 | ||
3553 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3554 | break; | |
3555 | } | |
3556 | ||
3557 | case R_PARISC_LTOFF_FPTR32: | |
3558 | { | |
3559 | /* We may still need to create the FPTR itself if it was for | |
3560 | a local symbol. */ | |
3561 | if (hh == NULL) | |
3562 | { | |
3563 | /* The first two words of an .opd entry are zero. */ | |
3564 | memset (hppa_info->opd_sec->contents + hh->opd_offset, 0, 16); | |
3565 | ||
3566 | /* The next word is the address of the function. */ | |
3567 | bfd_put_64 (hppa_info->opd_sec->owner, value + addend, | |
3568 | (hppa_info->opd_sec->contents | |
3569 | + hh->opd_offset + 16)); | |
3570 | ||
3571 | /* The last word is our local __gp value. */ | |
3572 | value = _bfd_get_gp_value | |
3573 | (hppa_info->opd_sec->output_section->owner); | |
3574 | bfd_put_64 (hppa_info->opd_sec->owner, value, | |
3575 | hppa_info->opd_sec->contents + hh->opd_offset + 24); | |
3576 | ||
3577 | /* The DLT value is the address of the .opd entry. */ | |
3578 | value = (hh->opd_offset | |
3579 | + hppa_info->opd_sec->output_offset | |
3580 | + hppa_info->opd_sec->output_section->vma); | |
3581 | ||
3582 | bfd_put_64 (hppa_info->dlt_sec->owner, | |
3583 | value, | |
3584 | hppa_info->dlt_sec->contents + hh->dlt_offset); | |
3585 | } | |
3586 | ||
3587 | /* We want the value of the DLT offset for this symbol, not | |
3588 | the symbol's actual address. Note that __gp may not point | |
3589 | to the start of the DLT, so we have to compute the absolute | |
3590 | address, then subtract out the value of __gp. */ | |
3591 | value = (hh->dlt_offset | |
3592 | + hppa_info->dlt_sec->output_offset | |
3593 | + hppa_info->dlt_sec->output_section->vma); | |
3594 | value -= _bfd_get_gp_value (output_bfd); | |
3595 | bfd_put_32 (input_bfd, value, hit_data); | |
3596 | return bfd_reloc_ok; | |
3597 | } | |
3598 | ||
3599 | case R_PARISC_LTOFF_FPTR64: | |
3600 | case R_PARISC_LTOFF_TP64: | |
3601 | { | |
3602 | /* We may still need to create the FPTR itself if it was for | |
3603 | a local symbol. */ | |
3604 | if (eh == NULL && r_type == R_PARISC_LTOFF_FPTR64) | |
3605 | { | |
3606 | /* The first two words of an .opd entry are zero. */ | |
3607 | memset (hppa_info->opd_sec->contents + hh->opd_offset, 0, 16); | |
3608 | ||
3609 | /* The next word is the address of the function. */ | |
3610 | bfd_put_64 (hppa_info->opd_sec->owner, value + addend, | |
3611 | (hppa_info->opd_sec->contents | |
3612 | + hh->opd_offset + 16)); | |
3613 | ||
3614 | /* The last word is our local __gp value. */ | |
3615 | value = _bfd_get_gp_value | |
3616 | (hppa_info->opd_sec->output_section->owner); | |
3617 | bfd_put_64 (hppa_info->opd_sec->owner, value, | |
3618 | hppa_info->opd_sec->contents + hh->opd_offset + 24); | |
3619 | ||
3620 | /* The DLT value is the address of the .opd entry. */ | |
3621 | value = (hh->opd_offset | |
3622 | + hppa_info->opd_sec->output_offset | |
3623 | + hppa_info->opd_sec->output_section->vma); | |
3624 | ||
3625 | bfd_put_64 (hppa_info->dlt_sec->owner, | |
3626 | value, | |
3627 | hppa_info->dlt_sec->contents + hh->dlt_offset); | |
3628 | } | |
3629 | ||
3630 | /* We want the value of the DLT offset for this symbol, not | |
3631 | the symbol's actual address. Note that __gp may not point | |
3632 | to the start of the DLT, so we have to compute the absolute | |
3633 | address, then subtract out the value of __gp. */ | |
3634 | value = (hh->dlt_offset | |
3635 | + hppa_info->dlt_sec->output_offset | |
3636 | + hppa_info->dlt_sec->output_section->vma); | |
3637 | value -= _bfd_get_gp_value (output_bfd); | |
3638 | bfd_put_64 (input_bfd, value, hit_data); | |
3639 | return bfd_reloc_ok; | |
3640 | } | |
3641 | ||
3642 | case R_PARISC_DIR32: | |
3643 | bfd_put_32 (input_bfd, value + addend, hit_data); | |
3644 | return bfd_reloc_ok; | |
3645 | ||
3646 | case R_PARISC_DIR64: | |
3647 | bfd_put_64 (input_bfd, value + addend, hit_data); | |
3648 | return bfd_reloc_ok; | |
3649 | ||
3650 | case R_PARISC_GPREL64: | |
3651 | /* Subtract out the global pointer value to make value a DLT | |
3652 | relative address. */ | |
3653 | value -= _bfd_get_gp_value (output_bfd); | |
3654 | ||
3655 | bfd_put_64 (input_bfd, value + addend, hit_data); | |
3656 | return bfd_reloc_ok; | |
3657 | ||
3658 | case R_PARISC_LTOFF64: | |
3659 | /* We want the value of the DLT offset for this symbol, not | |
3660 | the symbol's actual address. Note that __gp may not point | |
3661 | to the start of the DLT, so we have to compute the absolute | |
3662 | address, then subtract out the value of __gp. */ | |
3663 | value = (hh->dlt_offset | |
3664 | + hppa_info->dlt_sec->output_offset | |
3665 | + hppa_info->dlt_sec->output_section->vma); | |
3666 | value -= _bfd_get_gp_value (output_bfd); | |
3667 | ||
3668 | bfd_put_64 (input_bfd, value + addend, hit_data); | |
3669 | return bfd_reloc_ok; | |
3670 | ||
3671 | case R_PARISC_PCREL32: | |
3672 | { | |
3673 | /* If this is a call to a function defined in another dynamic | |
3674 | library, then redirect the call to the local stub for this | |
3675 | function. */ | |
3676 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3677 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3678 | + hppa_info->stub_sec->output_section->vma); | |
3679 | ||
3680 | /* Turn VALUE into a proper PC relative address. */ | |
3681 | value -= (offset + input_section->output_offset | |
3682 | + input_section->output_section->vma); | |
3683 | ||
3684 | value += addend; | |
3685 | value -= 8; | |
3686 | bfd_put_32 (input_bfd, value, hit_data); | |
3687 | return bfd_reloc_ok; | |
3688 | } | |
3689 | ||
3690 | case R_PARISC_PCREL64: | |
3691 | { | |
3692 | /* If this is a call to a function defined in another dynamic | |
3693 | library, then redirect the call to the local stub for this | |
3694 | function. */ | |
3695 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3696 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3697 | + hppa_info->stub_sec->output_section->vma); | |
3698 | ||
3699 | /* Turn VALUE into a proper PC relative address. */ | |
3700 | value -= (offset + input_section->output_offset | |
3701 | + input_section->output_section->vma); | |
3702 | ||
3703 | value += addend; | |
3704 | value -= 8; | |
3705 | bfd_put_64 (input_bfd, value, hit_data); | |
3706 | return bfd_reloc_ok; | |
3707 | } | |
3708 | ||
3709 | case R_PARISC_FPTR64: | |
3710 | { | |
3711 | bfd_vma off; | |
3712 | ||
3713 | /* We may still need to create the FPTR itself if it was for | |
3714 | a local symbol. */ | |
3715 | if (hh == NULL) | |
3716 | { | |
3717 | bfd_vma *local_opd_offsets; | |
3718 | ||
3719 | if (local_offsets == NULL) | |
3720 | abort (); | |
3721 | ||
3722 | local_opd_offsets = local_offsets + 2 * symtab_hdr->sh_info; | |
3723 | off = local_opd_offsets[r_symndx]; | |
3724 | ||
3725 | /* The last bit records whether we've already initialised | |
3726 | this local .opd entry. */ | |
3727 | if ((off & 1) != 0) | |
3728 | { | |
3729 | BFD_ASSERT (off != (bfd_vma) -1); | |
3730 | off &= ~1; | |
3731 | } | |
3732 | else | |
3733 | { | |
3734 | /* The first two words of an .opd entry are zero. */ | |
3735 | memset (hppa_info->opd_sec->contents + off, 0, 16); | |
3736 | ||
3737 | /* The next word is the address of the function. */ | |
3738 | bfd_put_64 (hppa_info->opd_sec->owner, value + addend, | |
3739 | (hppa_info->opd_sec->contents + off + 16)); | |
3740 | ||
3741 | /* The last word is our local __gp value. */ | |
3742 | value = _bfd_get_gp_value | |
3743 | (hppa_info->opd_sec->output_section->owner); | |
3744 | bfd_put_64 (hppa_info->opd_sec->owner, value, | |
3745 | hppa_info->opd_sec->contents + off + 24); | |
3746 | } | |
3747 | } | |
3748 | else | |
3749 | off = hh->opd_offset; | |
3750 | ||
3751 | if (hh == NULL || hh->want_opd) | |
3752 | /* We want the value of the OPD offset for this symbol. */ | |
3753 | value = (off | |
3754 | + hppa_info->opd_sec->output_offset | |
3755 | + hppa_info->opd_sec->output_section->vma); | |
3756 | else | |
3757 | /* We want the address of the symbol. */ | |
3758 | value += addend; | |
3759 | ||
3760 | bfd_put_64 (input_bfd, value, hit_data); | |
3761 | return bfd_reloc_ok; | |
3762 | } | |
3763 | ||
3764 | case R_PARISC_SECREL32: | |
3765 | if (sym_sec) | |
3766 | value -= sym_sec->output_section->vma; | |
3767 | bfd_put_32 (input_bfd, value + addend, hit_data); | |
3768 | return bfd_reloc_ok; | |
3769 | ||
3770 | case R_PARISC_SEGREL32: | |
3771 | case R_PARISC_SEGREL64: | |
3772 | { | |
3773 | /* If this is the first SEGREL relocation, then initialize | |
3774 | the segment base values. */ | |
3775 | if (hppa_info->text_segment_base == (bfd_vma) -1) | |
3776 | bfd_map_over_sections (output_bfd, elf_hppa_record_segment_addrs, | |
3777 | hppa_info); | |
3778 | ||
3779 | /* VALUE holds the absolute address. We want to include the | |
3780 | addend, then turn it into a segment relative address. | |
3781 | ||
3782 | The segment is derived from SYM_SEC. We assume that there are | |
3783 | only two segments of note in the resulting executable/shlib. | |
3784 | A readonly segment (.text) and a readwrite segment (.data). */ | |
3785 | value += addend; | |
3786 | ||
3787 | if (sym_sec->flags & SEC_CODE) | |
3788 | value -= hppa_info->text_segment_base; | |
3789 | else | |
3790 | value -= hppa_info->data_segment_base; | |
3791 | ||
3792 | if (r_type == R_PARISC_SEGREL32) | |
3793 | bfd_put_32 (input_bfd, value, hit_data); | |
3794 | else | |
3795 | bfd_put_64 (input_bfd, value, hit_data); | |
3796 | return bfd_reloc_ok; | |
3797 | } | |
3798 | ||
3799 | /* Something we don't know how to handle. */ | |
3800 | default: | |
3801 | return bfd_reloc_notsupported; | |
3802 | } | |
3803 | ||
3804 | /* Update the instruction word. */ | |
3805 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); | |
3806 | return bfd_reloc_ok; | |
3807 | } | |
3808 | ||
3809 | /* Relocate an HPPA ELF section. */ | |
3810 | ||
3811 | static bfd_boolean | |
3812 | elf64_hppa_relocate_section (bfd *output_bfd, | |
3813 | struct bfd_link_info *info, | |
3814 | bfd *input_bfd, | |
3815 | asection *input_section, | |
3816 | bfd_byte *contents, | |
3817 | Elf_Internal_Rela *relocs, | |
3818 | Elf_Internal_Sym *local_syms, | |
3819 | asection **local_sections) | |
3820 | { | |
3821 | Elf_Internal_Shdr *symtab_hdr; | |
3822 | Elf_Internal_Rela *rel; | |
3823 | Elf_Internal_Rela *relend; | |
3824 | struct elf64_hppa_link_hash_table *hppa_info; | |
3825 | ||
3826 | hppa_info = hppa_link_hash_table (info); | |
4dfe6ac6 NC |
3827 | if (hppa_info == NULL) |
3828 | return FALSE; | |
3829 | ||
5887528b DA |
3830 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
3831 | ||
3832 | rel = relocs; | |
3833 | relend = relocs + input_section->reloc_count; | |
3834 | for (; rel < relend; rel++) | |
3835 | { | |
3836 | int r_type; | |
3837 | reloc_howto_type *howto = elf_hppa_howto_table + ELF_R_TYPE (rel->r_info); | |
3838 | unsigned long r_symndx; | |
3839 | struct elf_link_hash_entry *eh; | |
3840 | Elf_Internal_Sym *sym; | |
3841 | asection *sym_sec; | |
3842 | bfd_vma relocation; | |
3843 | bfd_reloc_status_type r; | |
5887528b DA |
3844 | |
3845 | r_type = ELF_R_TYPE (rel->r_info); | |
3846 | if (r_type < 0 || r_type >= (int) R_PARISC_UNIMPLEMENTED) | |
3847 | { | |
3848 | bfd_set_error (bfd_error_bad_value); | |
3849 | return FALSE; | |
3850 | } | |
3851 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3852 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3853 | continue; | |
3854 | ||
3855 | /* This is a final link. */ | |
3856 | r_symndx = ELF_R_SYM (rel->r_info); | |
3857 | eh = NULL; | |
3858 | sym = NULL; | |
3859 | sym_sec = NULL; | |
5887528b DA |
3860 | if (r_symndx < symtab_hdr->sh_info) |
3861 | { | |
3862 | /* This is a local symbol, hh defaults to NULL. */ | |
3863 | sym = local_syms + r_symndx; | |
3864 | sym_sec = local_sections[r_symndx]; | |
3865 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rel); | |
3866 | } | |
3867 | else | |
3868 | { | |
3869 | /* This is not a local symbol. */ | |
5887528b DA |
3870 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); |
3871 | ||
68ffbac6 | 3872 | /* It seems this can happen with erroneous or unsupported |
5887528b DA |
3873 | input (mixing a.out and elf in an archive, for example.) */ |
3874 | if (sym_hashes == NULL) | |
3875 | return FALSE; | |
3876 | ||
3877 | eh = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3878 | ||
8a5da09b AM |
3879 | if (info->wrap_hash != NULL |
3880 | && (input_section->flags & SEC_DEBUGGING) != 0) | |
3881 | eh = ((struct elf_link_hash_entry *) | |
3882 | unwrap_hash_lookup (info, input_bfd, &eh->root)); | |
3883 | ||
68ffbac6 | 3884 | while (eh->root.type == bfd_link_hash_indirect |
5887528b DA |
3885 | || eh->root.type == bfd_link_hash_warning) |
3886 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
3887 | ||
5887528b DA |
3888 | relocation = 0; |
3889 | if (eh->root.type == bfd_link_hash_defined | |
3890 | || eh->root.type == bfd_link_hash_defweak) | |
3891 | { | |
3892 | sym_sec = eh->root.u.def.section; | |
c7e2358a AM |
3893 | if (sym_sec != NULL |
3894 | && sym_sec->output_section != NULL) | |
5887528b DA |
3895 | relocation = (eh->root.u.def.value |
3896 | + sym_sec->output_section->vma | |
3897 | + sym_sec->output_offset); | |
3898 | } | |
3899 | else if (eh->root.type == bfd_link_hash_undefweak) | |
3900 | ; | |
3901 | else if (info->unresolved_syms_in_objects == RM_IGNORE | |
3902 | && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT) | |
3903 | ; | |
0e1862bb | 3904 | else if (!bfd_link_relocatable (info) |
5887528b DA |
3905 | && elf_hppa_is_dynamic_loader_symbol (eh->root.root.string)) |
3906 | continue; | |
0e1862bb | 3907 | else if (!bfd_link_relocatable (info)) |
5887528b DA |
3908 | { |
3909 | bfd_boolean err; | |
3910 | err = (info->unresolved_syms_in_objects == RM_GENERATE_ERROR | |
3911 | || ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT); | |
1a72702b AM |
3912 | (*info->callbacks->undefined_symbol) (info, |
3913 | eh->root.root.string, | |
3914 | input_bfd, | |
3915 | input_section, | |
3916 | rel->r_offset, err); | |
5887528b DA |
3917 | } |
3918 | ||
0e1862bb | 3919 | if (!bfd_link_relocatable (info) |
5887528b DA |
3920 | && relocation == 0 |
3921 | && eh->root.type != bfd_link_hash_defined | |
3922 | && eh->root.type != bfd_link_hash_defweak | |
3923 | && eh->root.type != bfd_link_hash_undefweak) | |
3924 | { | |
3925 | if (info->unresolved_syms_in_objects == RM_IGNORE | |
3926 | && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT | |
3927 | && eh->type == STT_PARISC_MILLI) | |
1a72702b AM |
3928 | (*info->callbacks->undefined_symbol) |
3929 | (info, eh_name (eh), input_bfd, | |
3930 | input_section, rel->r_offset, FALSE); | |
5887528b DA |
3931 | } |
3932 | } | |
3933 | ||
dbaa2011 | 3934 | if (sym_sec != NULL && discarded_section (sym_sec)) |
e4067dbb | 3935 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 3936 | rel, 1, relend, howto, 0, contents); |
5887528b | 3937 | |
0e1862bb | 3938 | if (bfd_link_relocatable (info)) |
5887528b DA |
3939 | continue; |
3940 | ||
3941 | r = elf_hppa_final_link_relocate (rel, input_bfd, output_bfd, | |
3942 | input_section, contents, | |
3943 | relocation, info, sym_sec, | |
3944 | eh); | |
3945 | ||
3946 | if (r != bfd_reloc_ok) | |
3947 | { | |
3948 | switch (r) | |
3949 | { | |
3950 | default: | |
3951 | abort (); | |
3952 | case bfd_reloc_overflow: | |
3953 | { | |
3954 | const char *sym_name; | |
3955 | ||
3956 | if (eh != NULL) | |
3957 | sym_name = NULL; | |
3958 | else | |
3959 | { | |
3960 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
3961 | symtab_hdr->sh_link, | |
3962 | sym->st_name); | |
3963 | if (sym_name == NULL) | |
3964 | return FALSE; | |
3965 | if (*sym_name == '\0') | |
3966 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
3967 | } | |
3968 | ||
1a72702b AM |
3969 | (*info->callbacks->reloc_overflow) |
3970 | (info, (eh ? &eh->root : NULL), sym_name, howto->name, | |
3971 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); | |
5887528b DA |
3972 | } |
3973 | break; | |
3974 | } | |
3975 | } | |
3976 | } | |
3977 | return TRUE; | |
3978 | } | |
3979 | ||
b35d266b | 3980 | static const struct bfd_elf_special_section elf64_hppa_special_sections[] = |
2f89ff8d | 3981 | { |
0112cd26 NC |
3982 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
3983 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
3984 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, | |
3985 | { STRING_COMMA_LEN (".dlt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, | |
3986 | { STRING_COMMA_LEN (".sdata"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, | |
3987 | { STRING_COMMA_LEN (".sbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, | |
3988 | { STRING_COMMA_LEN (".tbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_HP_TLS }, | |
3989 | { NULL, 0, 0, 0, 0 } | |
2f89ff8d L |
3990 | }; |
3991 | ||
15bda425 JL |
3992 | /* The hash bucket size is the standard one, namely 4. */ |
3993 | ||
3994 | const struct elf_size_info hppa64_elf_size_info = | |
3995 | { | |
3996 | sizeof (Elf64_External_Ehdr), | |
3997 | sizeof (Elf64_External_Phdr), | |
3998 | sizeof (Elf64_External_Shdr), | |
3999 | sizeof (Elf64_External_Rel), | |
4000 | sizeof (Elf64_External_Rela), | |
4001 | sizeof (Elf64_External_Sym), | |
4002 | sizeof (Elf64_External_Dyn), | |
4003 | sizeof (Elf_External_Note), | |
4004 | 4, | |
4005 | 1, | |
45d6a902 | 4006 | 64, 3, |
15bda425 JL |
4007 | ELFCLASS64, EV_CURRENT, |
4008 | bfd_elf64_write_out_phdrs, | |
4009 | bfd_elf64_write_shdrs_and_ehdr, | |
1489a3a0 | 4010 | bfd_elf64_checksum_contents, |
15bda425 | 4011 | bfd_elf64_write_relocs, |
73ff0d56 | 4012 | bfd_elf64_swap_symbol_in, |
15bda425 JL |
4013 | bfd_elf64_swap_symbol_out, |
4014 | bfd_elf64_slurp_reloc_table, | |
4015 | bfd_elf64_slurp_symbol_table, | |
4016 | bfd_elf64_swap_dyn_in, | |
4017 | bfd_elf64_swap_dyn_out, | |
947216bf AM |
4018 | bfd_elf64_swap_reloc_in, |
4019 | bfd_elf64_swap_reloc_out, | |
4020 | bfd_elf64_swap_reloca_in, | |
4021 | bfd_elf64_swap_reloca_out | |
15bda425 JL |
4022 | }; |
4023 | ||
6d00b590 | 4024 | #define TARGET_BIG_SYM hppa_elf64_vec |
15bda425 JL |
4025 | #define TARGET_BIG_NAME "elf64-hppa" |
4026 | #define ELF_ARCH bfd_arch_hppa | |
ae95ffa6 | 4027 | #define ELF_TARGET_ID HPPA64_ELF_DATA |
15bda425 JL |
4028 | #define ELF_MACHINE_CODE EM_PARISC |
4029 | /* This is not strictly correct. The maximum page size for PA2.0 is | |
4030 | 64M. But everything still uses 4k. */ | |
4031 | #define ELF_MAXPAGESIZE 0x1000 | |
d1036acb L |
4032 | #define ELF_OSABI ELFOSABI_HPUX |
4033 | ||
15bda425 | 4034 | #define bfd_elf64_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup |
157090f7 | 4035 | #define bfd_elf64_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup |
15bda425 JL |
4036 | #define bfd_elf64_bfd_is_local_label_name elf_hppa_is_local_label_name |
4037 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4038 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
4039 | ||
4040 | #define elf_backend_section_from_shdr elf64_hppa_section_from_shdr | |
4041 | #define elf_backend_object_p elf64_hppa_object_p | |
4042 | #define elf_backend_final_write_processing \ | |
4043 | elf_hppa_final_write_processing | |
99c79b2e | 4044 | #define elf_backend_fake_sections elf_hppa_fake_sections |
15bda425 JL |
4045 | #define elf_backend_add_symbol_hook elf_hppa_add_symbol_hook |
4046 | ||
f0fe0e16 | 4047 | #define elf_backend_relocate_section elf_hppa_relocate_section |
15bda425 JL |
4048 | |
4049 | #define bfd_elf64_bfd_final_link elf_hppa_final_link | |
4050 | ||
4051 | #define elf_backend_create_dynamic_sections \ | |
4052 | elf64_hppa_create_dynamic_sections | |
4053 | #define elf_backend_post_process_headers elf64_hppa_post_process_headers | |
4054 | ||
74541ad4 AM |
4055 | #define elf_backend_omit_section_dynsym \ |
4056 | ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true) | |
15bda425 JL |
4057 | #define elf_backend_adjust_dynamic_symbol \ |
4058 | elf64_hppa_adjust_dynamic_symbol | |
4059 | ||
4060 | #define elf_backend_size_dynamic_sections \ | |
4061 | elf64_hppa_size_dynamic_sections | |
4062 | ||
4063 | #define elf_backend_finish_dynamic_symbol \ | |
4064 | elf64_hppa_finish_dynamic_symbol | |
4065 | #define elf_backend_finish_dynamic_sections \ | |
4066 | elf64_hppa_finish_dynamic_sections | |
235ecfbc NC |
4067 | #define elf_backend_grok_prstatus elf64_hppa_grok_prstatus |
4068 | #define elf_backend_grok_psinfo elf64_hppa_grok_psinfo | |
68ffbac6 | 4069 | |
15bda425 JL |
4070 | /* Stuff for the BFD linker: */ |
4071 | #define bfd_elf64_bfd_link_hash_table_create \ | |
4072 | elf64_hppa_hash_table_create | |
4073 | ||
4074 | #define elf_backend_check_relocs \ | |
4075 | elf64_hppa_check_relocs | |
4076 | ||
4077 | #define elf_backend_size_info \ | |
4078 | hppa64_elf_size_info | |
4079 | ||
4080 | #define elf_backend_additional_program_headers \ | |
4081 | elf64_hppa_additional_program_headers | |
4082 | ||
4083 | #define elf_backend_modify_segment_map \ | |
4084 | elf64_hppa_modify_segment_map | |
4085 | ||
1a9ccd70 NC |
4086 | #define elf_backend_allow_non_load_phdr \ |
4087 | elf64_hppa_allow_non_load_phdr | |
4088 | ||
15bda425 JL |
4089 | #define elf_backend_link_output_symbol_hook \ |
4090 | elf64_hppa_link_output_symbol_hook | |
4091 | ||
15bda425 JL |
4092 | #define elf_backend_want_got_plt 0 |
4093 | #define elf_backend_plt_readonly 0 | |
4094 | #define elf_backend_want_plt_sym 0 | |
4095 | #define elf_backend_got_header_size 0 | |
b34976b6 AM |
4096 | #define elf_backend_type_change_ok TRUE |
4097 | #define elf_backend_get_symbol_type elf64_hppa_elf_get_symbol_type | |
4098 | #define elf_backend_reloc_type_class elf64_hppa_reloc_type_class | |
4099 | #define elf_backend_rela_normal 1 | |
29ef7005 | 4100 | #define elf_backend_special_sections elf64_hppa_special_sections |
8a696751 | 4101 | #define elf_backend_action_discarded elf_hppa_action_discarded |
d97a8924 | 4102 | #define elf_backend_section_from_phdr elf64_hppa_section_from_phdr |
15bda425 | 4103 | |
83d1651b L |
4104 | #define elf64_bed elf64_hppa_hpux_bed |
4105 | ||
15bda425 | 4106 | #include "elf64-target.h" |
d952f17a AM |
4107 | |
4108 | #undef TARGET_BIG_SYM | |
6d00b590 | 4109 | #define TARGET_BIG_SYM hppa_elf64_linux_vec |
d952f17a AM |
4110 | #undef TARGET_BIG_NAME |
4111 | #define TARGET_BIG_NAME "elf64-hppa-linux" | |
d1036acb | 4112 | #undef ELF_OSABI |
9c55345c | 4113 | #define ELF_OSABI ELFOSABI_GNU |
83d1651b L |
4114 | #undef elf64_bed |
4115 | #define elf64_bed elf64_hppa_linux_bed | |
d952f17a | 4116 | |
d952f17a | 4117 | #include "elf64-target.h" |