Commit | Line | Data |
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b352eebf | 1 | /* Support for HPPA 64-bit ELF |
b3adc24a | 2 | Copyright (C) 1999-2020 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; | |
15bda425 JL |
120 | asection *opd_sec; |
121 | asection *opd_rel_sec; | |
122 | asection *other_rel_sec; | |
123 | ||
124 | /* Offset of __gp within .plt section. When the PLT gets large we want | |
125 | to slide __gp into the PLT section so that we can continue to use | |
126 | single DP relative instructions to load values out of the PLT. */ | |
127 | bfd_vma gp_offset; | |
128 | ||
129 | /* Note this is not strictly correct. We should create a stub section for | |
130 | each input section with calls. The stub section should be placed before | |
131 | the section with the call. */ | |
132 | asection *stub_sec; | |
133 | ||
134 | bfd_vma text_segment_base; | |
135 | bfd_vma data_segment_base; | |
136 | ||
15bda425 JL |
137 | /* We build tables to map from an input section back to its |
138 | symbol index. This is the BFD for which we currently have | |
139 | a map. */ | |
140 | bfd *section_syms_bfd; | |
141 | ||
142 | /* Array of symbol numbers for each input section attached to the | |
143 | current BFD. */ | |
144 | int *section_syms; | |
145 | }; | |
146 | ||
a03bd320 | 147 | #define hppa_link_hash_table(p) \ |
4dfe6ac6 NC |
148 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
149 | == HPPA64_ELF_DATA ? ((struct elf64_hppa_link_hash_table *) ((p)->hash)) : NULL) | |
15bda425 | 150 | |
a03bd320 DA |
151 | #define hppa_elf_hash_entry(ent) \ |
152 | ((struct elf64_hppa_link_hash_entry *)(ent)) | |
153 | ||
154 | #define eh_name(eh) \ | |
155 | (eh ? eh->root.root.string : "<undef>") | |
156 | ||
15bda425 | 157 | typedef struct bfd_hash_entry *(*new_hash_entry_func) |
813c8a3c | 158 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); |
15bda425 | 159 | |
15bda425 | 160 | static struct bfd_link_hash_table *elf64_hppa_hash_table_create |
813c8a3c DA |
161 | (bfd *abfd); |
162 | ||
15bda425 JL |
163 | /* This must follow the definitions of the various derived linker |
164 | hash tables and shared functions. */ | |
165 | #include "elf-hppa.h" | |
166 | ||
b34976b6 | 167 | static bfd_boolean elf64_hppa_object_p |
813c8a3c | 168 | (bfd *); |
15bda425 | 169 | |
b34976b6 | 170 | static bfd_boolean elf64_hppa_create_dynamic_sections |
813c8a3c | 171 | (bfd *, struct bfd_link_info *); |
15bda425 | 172 | |
b34976b6 | 173 | static bfd_boolean elf64_hppa_adjust_dynamic_symbol |
813c8a3c | 174 | (struct bfd_link_info *, struct elf_link_hash_entry *); |
15bda425 | 175 | |
b34976b6 | 176 | static bfd_boolean elf64_hppa_mark_milli_and_exported_functions |
813c8a3c | 177 | (struct elf_link_hash_entry *, void *); |
47b7c2db | 178 | |
b34976b6 | 179 | static bfd_boolean elf64_hppa_size_dynamic_sections |
813c8a3c | 180 | (bfd *, struct bfd_link_info *); |
15bda425 | 181 | |
6e0b88f1 | 182 | static int elf64_hppa_link_output_symbol_hook |
813c8a3c DA |
183 | (struct bfd_link_info *, const char *, Elf_Internal_Sym *, |
184 | asection *, struct elf_link_hash_entry *); | |
99c79b2e | 185 | |
b34976b6 | 186 | static bfd_boolean elf64_hppa_finish_dynamic_symbol |
813c8a3c DA |
187 | (bfd *, struct bfd_link_info *, |
188 | struct elf_link_hash_entry *, Elf_Internal_Sym *); | |
fe8bc63d | 189 | |
b34976b6 | 190 | static bfd_boolean elf64_hppa_finish_dynamic_sections |
813c8a3c | 191 | (bfd *, struct bfd_link_info *); |
15bda425 | 192 | |
b34976b6 | 193 | static bfd_boolean elf64_hppa_check_relocs |
813c8a3c DA |
194 | (bfd *, struct bfd_link_info *, |
195 | asection *, const Elf_Internal_Rela *); | |
15bda425 | 196 | |
b34976b6 | 197 | static bfd_boolean elf64_hppa_dynamic_symbol_p |
813c8a3c | 198 | (struct elf_link_hash_entry *, struct bfd_link_info *); |
15bda425 | 199 | |
b34976b6 | 200 | static bfd_boolean elf64_hppa_mark_exported_functions |
813c8a3c | 201 | (struct elf_link_hash_entry *, void *); |
15bda425 | 202 | |
b34976b6 | 203 | static bfd_boolean elf64_hppa_finalize_opd |
a03bd320 | 204 | (struct elf_link_hash_entry *, void *); |
15bda425 | 205 | |
b34976b6 | 206 | static bfd_boolean elf64_hppa_finalize_dlt |
a03bd320 | 207 | (struct elf_link_hash_entry *, void *); |
15bda425 | 208 | |
b34976b6 | 209 | static bfd_boolean allocate_global_data_dlt |
a03bd320 | 210 | (struct elf_link_hash_entry *, void *); |
15bda425 | 211 | |
b34976b6 | 212 | static bfd_boolean allocate_global_data_plt |
a03bd320 | 213 | (struct elf_link_hash_entry *, void *); |
15bda425 | 214 | |
b34976b6 | 215 | static bfd_boolean allocate_global_data_stub |
a03bd320 | 216 | (struct elf_link_hash_entry *, void *); |
15bda425 | 217 | |
b34976b6 | 218 | static bfd_boolean allocate_global_data_opd |
a03bd320 | 219 | (struct elf_link_hash_entry *, void *); |
15bda425 | 220 | |
b34976b6 | 221 | static bfd_boolean get_reloc_section |
813c8a3c | 222 | (bfd *, struct elf64_hppa_link_hash_table *, asection *); |
15bda425 | 223 | |
b34976b6 | 224 | static bfd_boolean count_dyn_reloc |
a03bd320 | 225 | (bfd *, struct elf64_hppa_link_hash_entry *, |
813c8a3c | 226 | int, asection *, int, bfd_vma, bfd_vma); |
15bda425 | 227 | |
b34976b6 | 228 | static bfd_boolean allocate_dynrel_entries |
a03bd320 | 229 | (struct elf_link_hash_entry *, void *); |
15bda425 | 230 | |
b34976b6 | 231 | static bfd_boolean elf64_hppa_finalize_dynreloc |
a03bd320 | 232 | (struct elf_link_hash_entry *, void *); |
15bda425 | 233 | |
b34976b6 | 234 | static bfd_boolean get_opd |
813c8a3c | 235 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 236 | |
b34976b6 | 237 | static bfd_boolean get_plt |
813c8a3c | 238 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 239 | |
b34976b6 | 240 | static bfd_boolean get_dlt |
813c8a3c | 241 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 242 | |
b34976b6 | 243 | static bfd_boolean get_stub |
813c8a3c | 244 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 245 | |
3fab46d0 | 246 | static int elf64_hppa_elf_get_symbol_type |
813c8a3c | 247 | (Elf_Internal_Sym *, int); |
3fab46d0 | 248 | |
a03bd320 | 249 | /* Initialize an entry in the link hash table. */ |
15bda425 | 250 | |
a03bd320 DA |
251 | static struct bfd_hash_entry * |
252 | hppa64_link_hash_newfunc (struct bfd_hash_entry *entry, | |
253 | struct bfd_hash_table *table, | |
254 | const char *string) | |
15bda425 | 255 | { |
15bda425 JL |
256 | /* Allocate the structure if it has not already been allocated by a |
257 | subclass. */ | |
a03bd320 DA |
258 | if (entry == NULL) |
259 | { | |
260 | entry = bfd_hash_allocate (table, | |
261 | sizeof (struct elf64_hppa_link_hash_entry)); | |
262 | if (entry == NULL) | |
07d6d2b8 | 263 | return entry; |
a03bd320 | 264 | } |
15bda425 | 265 | |
15bda425 | 266 | /* Call the allocation method of the superclass. */ |
a03bd320 DA |
267 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
268 | if (entry != NULL) | |
269 | { | |
270 | struct elf64_hppa_link_hash_entry *hh; | |
15bda425 | 271 | |
a03bd320 DA |
272 | /* Initialize our local data. All zeros. */ |
273 | hh = hppa_elf_hash_entry (entry); | |
274 | memset (&hh->dlt_offset, 0, | |
275 | (sizeof (struct elf64_hppa_link_hash_entry) | |
276 | - offsetof (struct elf64_hppa_link_hash_entry, dlt_offset))); | |
277 | } | |
336549c1 | 278 | |
a03bd320 | 279 | return entry; |
15bda425 JL |
280 | } |
281 | ||
282 | /* Create the derived linker hash table. The PA64 ELF port uses this | |
283 | derived hash table to keep information specific to the PA ElF | |
284 | linker (without using static variables). */ | |
285 | ||
286 | static struct bfd_link_hash_table* | |
813c8a3c | 287 | elf64_hppa_hash_table_create (bfd *abfd) |
15bda425 | 288 | { |
a03bd320 | 289 | struct elf64_hppa_link_hash_table *htab; |
986f0783 | 290 | size_t amt = sizeof (*htab); |
15bda425 | 291 | |
22cdc249 | 292 | htab = bfd_zmalloc (amt); |
a03bd320 DA |
293 | if (htab == NULL) |
294 | return NULL; | |
15bda425 | 295 | |
a03bd320 DA |
296 | if (!_bfd_elf_link_hash_table_init (&htab->root, abfd, |
297 | hppa64_link_hash_newfunc, | |
4dfe6ac6 NC |
298 | sizeof (struct elf64_hppa_link_hash_entry), |
299 | HPPA64_ELF_DATA)) | |
a03bd320 | 300 | { |
22cdc249 | 301 | free (htab); |
a03bd320 DA |
302 | return NULL; |
303 | } | |
15bda425 | 304 | |
a03bd320 DA |
305 | htab->text_segment_base = (bfd_vma) -1; |
306 | htab->data_segment_base = (bfd_vma) -1; | |
15bda425 | 307 | |
a03bd320 | 308 | return &htab->root.root; |
15bda425 JL |
309 | } |
310 | \f | |
311 | /* Return nonzero if ABFD represents a PA2.0 ELF64 file. | |
312 | ||
313 | Additionally we set the default architecture and machine. */ | |
b34976b6 | 314 | static bfd_boolean |
813c8a3c | 315 | elf64_hppa_object_p (bfd *abfd) |
15bda425 | 316 | { |
24a5e751 L |
317 | Elf_Internal_Ehdr * i_ehdrp; |
318 | unsigned int flags; | |
d9634ba1 | 319 | |
24a5e751 L |
320 | i_ehdrp = elf_elfheader (abfd); |
321 | if (strcmp (bfd_get_target (abfd), "elf64-hppa-linux") == 0) | |
322 | { | |
9c55345c | 323 | /* GCC on hppa-linux produces binaries with OSABI=GNU, |
6c21aa76 | 324 | but the kernel produces corefiles with OSABI=SysV. */ |
9c55345c | 325 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU |
d97a8924 | 326 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ |
b34976b6 | 327 | return FALSE; |
24a5e751 L |
328 | } |
329 | else | |
330 | { | |
d97a8924 DA |
331 | /* HPUX produces binaries with OSABI=HPUX, |
332 | but the kernel produces corefiles with OSABI=SysV. */ | |
333 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX | |
334 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ | |
b34976b6 | 335 | return FALSE; |
24a5e751 L |
336 | } |
337 | ||
338 | flags = i_ehdrp->e_flags; | |
d9634ba1 AM |
339 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
340 | { | |
341 | case EFA_PARISC_1_0: | |
342 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
343 | case EFA_PARISC_1_1: | |
344 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
345 | case EFA_PARISC_2_0: | |
d97a8924 | 346 | if (i_ehdrp->e_ident[EI_CLASS] == ELFCLASS64) |
07d6d2b8 | 347 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); |
d97a8924 | 348 | else |
07d6d2b8 | 349 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); |
d9634ba1 AM |
350 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: |
351 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
352 | } | |
353 | /* Don't be fussy. */ | |
b34976b6 | 354 | return TRUE; |
15bda425 JL |
355 | } |
356 | ||
357 | /* Given section type (hdr->sh_type), return a boolean indicating | |
358 | whether or not the section is an elf64-hppa specific section. */ | |
b34976b6 | 359 | static bfd_boolean |
6dc132d9 L |
360 | elf64_hppa_section_from_shdr (bfd *abfd, |
361 | Elf_Internal_Shdr *hdr, | |
362 | const char *name, | |
363 | int shindex) | |
15bda425 | 364 | { |
15bda425 JL |
365 | switch (hdr->sh_type) |
366 | { | |
367 | case SHT_PARISC_EXT: | |
368 | if (strcmp (name, ".PARISC.archext") != 0) | |
b34976b6 | 369 | return FALSE; |
15bda425 JL |
370 | break; |
371 | case SHT_PARISC_UNWIND: | |
372 | if (strcmp (name, ".PARISC.unwind") != 0) | |
b34976b6 | 373 | return FALSE; |
15bda425 JL |
374 | break; |
375 | case SHT_PARISC_DOC: | |
376 | case SHT_PARISC_ANNOT: | |
377 | default: | |
b34976b6 | 378 | return FALSE; |
15bda425 JL |
379 | } |
380 | ||
6dc132d9 | 381 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
b34976b6 | 382 | return FALSE; |
15bda425 | 383 | |
bf577467 AM |
384 | return ((hdr->sh_flags & SHF_PARISC_SHORT) == 0 |
385 | || bfd_set_section_flags (hdr->bfd_section, | |
386 | hdr->bfd_section->flags | SEC_SMALL_DATA)); | |
15bda425 JL |
387 | } |
388 | ||
15bda425 JL |
389 | /* SEC is a section containing relocs for an input BFD when linking; return |
390 | a suitable section for holding relocs in the output BFD for a link. */ | |
391 | ||
b34976b6 | 392 | static bfd_boolean |
813c8a3c DA |
393 | get_reloc_section (bfd *abfd, |
394 | struct elf64_hppa_link_hash_table *hppa_info, | |
395 | asection *sec) | |
15bda425 JL |
396 | { |
397 | const char *srel_name; | |
398 | asection *srel; | |
399 | bfd *dynobj; | |
400 | ||
401 | srel_name = (bfd_elf_string_from_elf_section | |
402 | (abfd, elf_elfheader(abfd)->e_shstrndx, | |
d4730f92 | 403 | _bfd_elf_single_rel_hdr(sec)->sh_name)); |
15bda425 | 404 | if (srel_name == NULL) |
b34976b6 | 405 | return FALSE; |
15bda425 | 406 | |
15bda425 JL |
407 | dynobj = hppa_info->root.dynobj; |
408 | if (!dynobj) | |
409 | hppa_info->root.dynobj = dynobj = abfd; | |
410 | ||
3d4d4302 | 411 | srel = bfd_get_linker_section (dynobj, srel_name); |
15bda425 JL |
412 | if (srel == NULL) |
413 | { | |
3d4d4302 AM |
414 | srel = bfd_make_section_anyway_with_flags (dynobj, srel_name, |
415 | (SEC_ALLOC | |
416 | | SEC_LOAD | |
417 | | SEC_HAS_CONTENTS | |
418 | | SEC_IN_MEMORY | |
419 | | SEC_LINKER_CREATED | |
420 | | SEC_READONLY)); | |
15bda425 | 421 | if (srel == NULL |
fd361982 | 422 | || !bfd_set_section_alignment (srel, 3)) |
b34976b6 | 423 | return FALSE; |
15bda425 JL |
424 | } |
425 | ||
426 | hppa_info->other_rel_sec = srel; | |
b34976b6 | 427 | return TRUE; |
15bda425 JL |
428 | } |
429 | ||
fe8bc63d | 430 | /* Add a new entry to the list of dynamic relocations against DYN_H. |
15bda425 JL |
431 | |
432 | We use this to keep a record of all the FPTR relocations against a | |
433 | particular symbol so that we can create FPTR relocations in the | |
434 | output file. */ | |
435 | ||
b34976b6 | 436 | static bfd_boolean |
813c8a3c | 437 | count_dyn_reloc (bfd *abfd, |
a03bd320 | 438 | struct elf64_hppa_link_hash_entry *hh, |
813c8a3c DA |
439 | int type, |
440 | asection *sec, | |
07d6d2b8 AM |
441 | int sec_symndx, |
442 | bfd_vma offset, | |
813c8a3c | 443 | bfd_vma addend) |
15bda425 JL |
444 | { |
445 | struct elf64_hppa_dyn_reloc_entry *rent; | |
446 | ||
447 | rent = (struct elf64_hppa_dyn_reloc_entry *) | |
dc810e39 | 448 | bfd_alloc (abfd, (bfd_size_type) sizeof (*rent)); |
15bda425 | 449 | if (!rent) |
b34976b6 | 450 | return FALSE; |
15bda425 | 451 | |
a03bd320 | 452 | rent->next = hh->reloc_entries; |
15bda425 JL |
453 | rent->type = type; |
454 | rent->sec = sec; | |
455 | rent->sec_symndx = sec_symndx; | |
456 | rent->offset = offset; | |
457 | rent->addend = addend; | |
a03bd320 | 458 | hh->reloc_entries = rent; |
15bda425 | 459 | |
b34976b6 | 460 | return TRUE; |
15bda425 JL |
461 | } |
462 | ||
a03bd320 DA |
463 | /* Return a pointer to the local DLT, PLT and OPD reference counts |
464 | for ABFD. Returns NULL if the storage allocation fails. */ | |
465 | ||
466 | static bfd_signed_vma * | |
467 | hppa64_elf_local_refcounts (bfd *abfd) | |
468 | { | |
469 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
470 | bfd_signed_vma *local_refcounts; | |
68ffbac6 | 471 | |
a03bd320 DA |
472 | local_refcounts = elf_local_got_refcounts (abfd); |
473 | if (local_refcounts == NULL) | |
474 | { | |
475 | bfd_size_type size; | |
476 | ||
477 | /* Allocate space for local DLT, PLT and OPD reference | |
478 | counts. Done this way to save polluting elf_obj_tdata | |
479 | with another target specific pointer. */ | |
480 | size = symtab_hdr->sh_info; | |
481 | size *= 3 * sizeof (bfd_signed_vma); | |
482 | local_refcounts = bfd_zalloc (abfd, size); | |
483 | elf_local_got_refcounts (abfd) = local_refcounts; | |
484 | } | |
485 | return local_refcounts; | |
486 | } | |
487 | ||
15bda425 JL |
488 | /* Scan the RELOCS and record the type of dynamic entries that each |
489 | referenced symbol needs. */ | |
490 | ||
b34976b6 | 491 | static bfd_boolean |
813c8a3c DA |
492 | elf64_hppa_check_relocs (bfd *abfd, |
493 | struct bfd_link_info *info, | |
494 | asection *sec, | |
495 | const Elf_Internal_Rela *relocs) | |
15bda425 JL |
496 | { |
497 | struct elf64_hppa_link_hash_table *hppa_info; | |
498 | const Elf_Internal_Rela *relend; | |
499 | Elf_Internal_Shdr *symtab_hdr; | |
500 | const Elf_Internal_Rela *rel; | |
4fbb74a6 | 501 | unsigned int sec_symndx; |
15bda425 | 502 | |
0e1862bb | 503 | if (bfd_link_relocatable (info)) |
b34976b6 | 504 | return TRUE; |
15bda425 JL |
505 | |
506 | /* If this is the first dynamic object found in the link, create | |
507 | the special sections required for dynamic linking. */ | |
508 | if (! elf_hash_table (info)->dynamic_sections_created) | |
509 | { | |
45d6a902 | 510 | if (! _bfd_elf_link_create_dynamic_sections (abfd, info)) |
b34976b6 | 511 | return FALSE; |
15bda425 JL |
512 | } |
513 | ||
a03bd320 | 514 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
515 | if (hppa_info == NULL) |
516 | return FALSE; | |
15bda425 JL |
517 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
518 | ||
519 | /* If necessary, build a new table holding section symbols indices | |
6cdc0ccc | 520 | for this BFD. */ |
fe8bc63d | 521 | |
0e1862bb | 522 | if (bfd_link_pic (info) && hppa_info->section_syms_bfd != abfd) |
15bda425 | 523 | { |
832d951b | 524 | unsigned long i; |
9ad5cbcf | 525 | unsigned int highest_shndx; |
6cdc0ccc AM |
526 | Elf_Internal_Sym *local_syms = NULL; |
527 | Elf_Internal_Sym *isym, *isymend; | |
dc810e39 | 528 | bfd_size_type amt; |
15bda425 JL |
529 | |
530 | /* We're done with the old cache of section index to section symbol | |
531 | index information. Free it. | |
532 | ||
533 | ?!? Note we leak the last section_syms array. Presumably we | |
534 | could free it in one of the later routines in this file. */ | |
c9594989 | 535 | free (hppa_info->section_syms); |
15bda425 | 536 | |
6cdc0ccc AM |
537 | /* Read this BFD's local symbols. */ |
538 | if (symtab_hdr->sh_info != 0) | |
47b7c2db | 539 | { |
6cdc0ccc AM |
540 | local_syms = (Elf_Internal_Sym *) symtab_hdr->contents; |
541 | if (local_syms == NULL) | |
542 | local_syms = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
543 | symtab_hdr->sh_info, 0, | |
544 | NULL, NULL, NULL); | |
545 | if (local_syms == NULL) | |
b34976b6 | 546 | return FALSE; |
9ad5cbcf AM |
547 | } |
548 | ||
6cdc0ccc | 549 | /* Record the highest section index referenced by the local symbols. */ |
15bda425 | 550 | highest_shndx = 0; |
6cdc0ccc AM |
551 | isymend = local_syms + symtab_hdr->sh_info; |
552 | for (isym = local_syms; isym < isymend; isym++) | |
15bda425 | 553 | { |
4fbb74a6 AM |
554 | if (isym->st_shndx > highest_shndx |
555 | && isym->st_shndx < SHN_LORESERVE) | |
15bda425 JL |
556 | highest_shndx = isym->st_shndx; |
557 | } | |
558 | ||
15bda425 JL |
559 | /* Allocate an array to hold the section index to section symbol index |
560 | mapping. Bump by one since we start counting at zero. */ | |
561 | highest_shndx++; | |
dc810e39 AM |
562 | amt = highest_shndx; |
563 | amt *= sizeof (int); | |
564 | hppa_info->section_syms = (int *) bfd_malloc (amt); | |
15bda425 JL |
565 | |
566 | /* Now walk the local symbols again. If we find a section symbol, | |
567 | record the index of the symbol into the section_syms array. */ | |
6cdc0ccc | 568 | for (i = 0, isym = local_syms; isym < isymend; i++, isym++) |
15bda425 JL |
569 | { |
570 | if (ELF_ST_TYPE (isym->st_info) == STT_SECTION) | |
571 | hppa_info->section_syms[isym->st_shndx] = i; | |
572 | } | |
573 | ||
6cdc0ccc AM |
574 | /* We are finished with the local symbols. */ |
575 | if (local_syms != NULL | |
576 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
577 | { | |
578 | if (! info->keep_memory) | |
579 | free (local_syms); | |
580 | else | |
581 | { | |
582 | /* Cache the symbols for elf_link_input_bfd. */ | |
583 | symtab_hdr->contents = (unsigned char *) local_syms; | |
584 | } | |
585 | } | |
15bda425 JL |
586 | |
587 | /* Record which BFD we built the section_syms mapping for. */ | |
588 | hppa_info->section_syms_bfd = abfd; | |
589 | } | |
590 | ||
591 | /* Record the symbol index for this input section. We may need it for | |
592 | relocations when building shared libraries. When not building shared | |
593 | libraries this value is never really used, but assign it to zero to | |
594 | prevent out of bounds memory accesses in other routines. */ | |
0e1862bb | 595 | if (bfd_link_pic (info)) |
15bda425 JL |
596 | { |
597 | sec_symndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
598 | ||
599 | /* If we did not find a section symbol for this section, then | |
600 | something went terribly wrong above. */ | |
4fbb74a6 | 601 | if (sec_symndx == SHN_BAD) |
b34976b6 | 602 | return FALSE; |
15bda425 | 603 | |
4fbb74a6 AM |
604 | if (sec_symndx < SHN_LORESERVE) |
605 | sec_symndx = hppa_info->section_syms[sec_symndx]; | |
606 | else | |
607 | sec_symndx = 0; | |
15bda425 JL |
608 | } |
609 | else | |
610 | sec_symndx = 0; | |
fe8bc63d | 611 | |
15bda425 JL |
612 | relend = relocs + sec->reloc_count; |
613 | for (rel = relocs; rel < relend; ++rel) | |
614 | { | |
560e09e9 NC |
615 | enum |
616 | { | |
617 | NEED_DLT = 1, | |
618 | NEED_PLT = 2, | |
619 | NEED_STUB = 4, | |
620 | NEED_OPD = 8, | |
621 | NEED_DYNREL = 16, | |
622 | }; | |
15bda425 | 623 | |
15bda425 | 624 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); |
a03bd320 | 625 | struct elf64_hppa_link_hash_entry *hh; |
15bda425 | 626 | int need_entry; |
b34976b6 | 627 | bfd_boolean maybe_dynamic; |
15bda425 JL |
628 | int dynrel_type = R_PARISC_NONE; |
629 | static reloc_howto_type *howto; | |
630 | ||
631 | if (r_symndx >= symtab_hdr->sh_info) | |
632 | { | |
633 | /* We're dealing with a global symbol -- find its hash entry | |
634 | and mark it as being referenced. */ | |
635 | long indx = r_symndx - symtab_hdr->sh_info; | |
a03bd320 DA |
636 | hh = hppa_elf_hash_entry (elf_sym_hashes (abfd)[indx]); |
637 | while (hh->eh.root.type == bfd_link_hash_indirect | |
638 | || hh->eh.root.type == bfd_link_hash_warning) | |
639 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
15bda425 | 640 | |
81fbe831 AM |
641 | /* PR15323, ref flags aren't set for references in the same |
642 | object. */ | |
a03bd320 | 643 | hh->eh.ref_regular = 1; |
15bda425 | 644 | } |
a03bd320 DA |
645 | else |
646 | hh = NULL; | |
15bda425 JL |
647 | |
648 | /* We can only get preliminary data on whether a symbol is | |
649 | locally or externally defined, as not all of the input files | |
650 | have yet been processed. Do something with what we know, as | |
651 | this may help reduce memory usage and processing time later. */ | |
b34976b6 | 652 | maybe_dynamic = FALSE; |
0e1862bb | 653 | if (hh && ((bfd_link_pic (info) |
f5385ebf AM |
654 | && (!info->symbolic |
655 | || info->unresolved_syms_in_shared_libs == RM_IGNORE)) | |
a03bd320 DA |
656 | || !hh->eh.def_regular |
657 | || hh->eh.root.type == bfd_link_hash_defweak)) | |
b34976b6 | 658 | maybe_dynamic = TRUE; |
15bda425 JL |
659 | |
660 | howto = elf_hppa_howto_table + ELF64_R_TYPE (rel->r_info); | |
661 | need_entry = 0; | |
662 | switch (howto->type) | |
663 | { | |
664 | /* These are simple indirect references to symbols through the | |
665 | DLT. We need to create a DLT entry for any symbols which | |
666 | appears in a DLTIND relocation. */ | |
667 | case R_PARISC_DLTIND21L: | |
668 | case R_PARISC_DLTIND14R: | |
669 | case R_PARISC_DLTIND14F: | |
670 | case R_PARISC_DLTIND14WR: | |
671 | case R_PARISC_DLTIND14DR: | |
672 | need_entry = NEED_DLT; | |
673 | break; | |
674 | ||
675 | /* ?!? These need a DLT entry. But I have no idea what to do with | |
676 | the "link time TP value. */ | |
677 | case R_PARISC_LTOFF_TP21L: | |
678 | case R_PARISC_LTOFF_TP14R: | |
679 | case R_PARISC_LTOFF_TP14F: | |
680 | case R_PARISC_LTOFF_TP64: | |
681 | case R_PARISC_LTOFF_TP14WR: | |
682 | case R_PARISC_LTOFF_TP14DR: | |
683 | case R_PARISC_LTOFF_TP16F: | |
684 | case R_PARISC_LTOFF_TP16WF: | |
685 | case R_PARISC_LTOFF_TP16DF: | |
686 | need_entry = NEED_DLT; | |
687 | break; | |
688 | ||
689 | /* These are function calls. Depending on their precise target we | |
690 | may need to make a stub for them. The stub uses the PLT, so we | |
691 | need to create PLT entries for these symbols too. */ | |
832d951b | 692 | case R_PARISC_PCREL12F: |
15bda425 JL |
693 | case R_PARISC_PCREL17F: |
694 | case R_PARISC_PCREL22F: | |
695 | case R_PARISC_PCREL32: | |
696 | case R_PARISC_PCREL64: | |
697 | case R_PARISC_PCREL21L: | |
698 | case R_PARISC_PCREL17R: | |
699 | case R_PARISC_PCREL17C: | |
700 | case R_PARISC_PCREL14R: | |
701 | case R_PARISC_PCREL14F: | |
702 | case R_PARISC_PCREL22C: | |
703 | case R_PARISC_PCREL14WR: | |
704 | case R_PARISC_PCREL14DR: | |
705 | case R_PARISC_PCREL16F: | |
706 | case R_PARISC_PCREL16WF: | |
707 | case R_PARISC_PCREL16DF: | |
a03bd320 DA |
708 | /* Function calls might need to go through the .plt, and |
709 | might need a long branch stub. */ | |
710 | if (hh != NULL && hh->eh.type != STT_PARISC_MILLI) | |
711 | need_entry = (NEED_PLT | NEED_STUB); | |
712 | else | |
713 | need_entry = 0; | |
15bda425 JL |
714 | break; |
715 | ||
716 | case R_PARISC_PLTOFF21L: | |
717 | case R_PARISC_PLTOFF14R: | |
718 | case R_PARISC_PLTOFF14F: | |
719 | case R_PARISC_PLTOFF14WR: | |
720 | case R_PARISC_PLTOFF14DR: | |
721 | case R_PARISC_PLTOFF16F: | |
722 | case R_PARISC_PLTOFF16WF: | |
723 | case R_PARISC_PLTOFF16DF: | |
724 | need_entry = (NEED_PLT); | |
725 | break; | |
726 | ||
727 | case R_PARISC_DIR64: | |
0e1862bb | 728 | if (bfd_link_pic (info) || maybe_dynamic) |
15bda425 JL |
729 | need_entry = (NEED_DYNREL); |
730 | dynrel_type = R_PARISC_DIR64; | |
731 | break; | |
732 | ||
733 | /* This is an indirect reference through the DLT to get the address | |
734 | of a OPD descriptor. Thus we need to make a DLT entry that points | |
735 | to an OPD entry. */ | |
736 | case R_PARISC_LTOFF_FPTR21L: | |
737 | case R_PARISC_LTOFF_FPTR14R: | |
738 | case R_PARISC_LTOFF_FPTR14WR: | |
739 | case R_PARISC_LTOFF_FPTR14DR: | |
740 | case R_PARISC_LTOFF_FPTR32: | |
741 | case R_PARISC_LTOFF_FPTR64: | |
742 | case R_PARISC_LTOFF_FPTR16F: | |
743 | case R_PARISC_LTOFF_FPTR16WF: | |
744 | case R_PARISC_LTOFF_FPTR16DF: | |
0e1862bb | 745 | if (bfd_link_pic (info) || maybe_dynamic) |
a03bd320 | 746 | need_entry = (NEED_DLT | NEED_OPD | NEED_PLT); |
15bda425 | 747 | else |
a03bd320 | 748 | need_entry = (NEED_DLT | NEED_OPD | NEED_PLT); |
15bda425 JL |
749 | dynrel_type = R_PARISC_FPTR64; |
750 | break; | |
751 | ||
752 | /* This is a simple OPD entry. */ | |
753 | case R_PARISC_FPTR64: | |
0e1862bb | 754 | if (bfd_link_pic (info) || maybe_dynamic) |
a03bd320 | 755 | need_entry = (NEED_OPD | NEED_PLT | NEED_DYNREL); |
15bda425 | 756 | else |
a03bd320 | 757 | need_entry = (NEED_OPD | NEED_PLT); |
15bda425 JL |
758 | dynrel_type = R_PARISC_FPTR64; |
759 | break; | |
760 | ||
761 | /* Add more cases as needed. */ | |
762 | } | |
763 | ||
764 | if (!need_entry) | |
765 | continue; | |
766 | ||
a03bd320 DA |
767 | if (hh) |
768 | { | |
769 | /* Stash away enough information to be able to find this symbol | |
770 | regardless of whether or not it is local or global. */ | |
771 | hh->owner = abfd; | |
772 | hh->sym_indx = r_symndx; | |
773 | } | |
15bda425 | 774 | |
15bda425 JL |
775 | /* Create what's needed. */ |
776 | if (need_entry & NEED_DLT) | |
777 | { | |
a03bd320 DA |
778 | /* Allocate space for a DLT entry, as well as a dynamic |
779 | relocation for this entry. */ | |
15bda425 JL |
780 | if (! hppa_info->dlt_sec |
781 | && ! get_dlt (abfd, info, hppa_info)) | |
782 | goto err_out; | |
a03bd320 DA |
783 | |
784 | if (hh != NULL) | |
785 | { | |
786 | hh->want_dlt = 1; | |
787 | hh->eh.got.refcount += 1; | |
788 | } | |
789 | else | |
790 | { | |
791 | bfd_signed_vma *local_dlt_refcounts; | |
68ffbac6 | 792 | |
a03bd320 DA |
793 | /* This is a DLT entry for a local symbol. */ |
794 | local_dlt_refcounts = hppa64_elf_local_refcounts (abfd); | |
795 | if (local_dlt_refcounts == NULL) | |
796 | return FALSE; | |
797 | local_dlt_refcounts[r_symndx] += 1; | |
798 | } | |
15bda425 JL |
799 | } |
800 | ||
801 | if (need_entry & NEED_PLT) | |
802 | { | |
9b8a8575 | 803 | if (! hppa_info->root.splt |
15bda425 JL |
804 | && ! get_plt (abfd, info, hppa_info)) |
805 | goto err_out; | |
a03bd320 DA |
806 | |
807 | if (hh != NULL) | |
808 | { | |
809 | hh->want_plt = 1; | |
810 | hh->eh.needs_plt = 1; | |
811 | hh->eh.plt.refcount += 1; | |
812 | } | |
813 | else | |
814 | { | |
815 | bfd_signed_vma *local_dlt_refcounts; | |
816 | bfd_signed_vma *local_plt_refcounts; | |
68ffbac6 | 817 | |
a03bd320 DA |
818 | /* This is a PLT entry for a local symbol. */ |
819 | local_dlt_refcounts = hppa64_elf_local_refcounts (abfd); | |
820 | if (local_dlt_refcounts == NULL) | |
821 | return FALSE; | |
822 | local_plt_refcounts = local_dlt_refcounts + symtab_hdr->sh_info; | |
823 | local_plt_refcounts[r_symndx] += 1; | |
824 | } | |
15bda425 JL |
825 | } |
826 | ||
827 | if (need_entry & NEED_STUB) | |
828 | { | |
829 | if (! hppa_info->stub_sec | |
830 | && ! get_stub (abfd, info, hppa_info)) | |
831 | goto err_out; | |
a03bd320 DA |
832 | if (hh) |
833 | hh->want_stub = 1; | |
15bda425 JL |
834 | } |
835 | ||
836 | if (need_entry & NEED_OPD) | |
837 | { | |
838 | if (! hppa_info->opd_sec | |
839 | && ! get_opd (abfd, info, hppa_info)) | |
840 | goto err_out; | |
841 | ||
a03bd320 DA |
842 | /* FPTRs are not allocated by the dynamic linker for PA64, |
843 | though it is possible that will change in the future. */ | |
fe8bc63d | 844 | |
a03bd320 DA |
845 | if (hh != NULL) |
846 | hh->want_opd = 1; | |
847 | else | |
848 | { | |
849 | bfd_signed_vma *local_dlt_refcounts; | |
850 | bfd_signed_vma *local_opd_refcounts; | |
68ffbac6 | 851 | |
a03bd320 DA |
852 | /* This is a OPD for a local symbol. */ |
853 | local_dlt_refcounts = hppa64_elf_local_refcounts (abfd); | |
854 | if (local_dlt_refcounts == NULL) | |
855 | return FALSE; | |
856 | local_opd_refcounts = (local_dlt_refcounts | |
857 | + 2 * symtab_hdr->sh_info); | |
858 | local_opd_refcounts[r_symndx] += 1; | |
859 | } | |
15bda425 JL |
860 | } |
861 | ||
862 | /* Add a new dynamic relocation to the chain of dynamic | |
863 | relocations for this symbol. */ | |
864 | if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC)) | |
865 | { | |
866 | if (! hppa_info->other_rel_sec | |
867 | && ! get_reloc_section (abfd, hppa_info, sec)) | |
868 | goto err_out; | |
869 | ||
a03bd320 DA |
870 | /* Count dynamic relocations against global symbols. */ |
871 | if (hh != NULL | |
872 | && !count_dyn_reloc (abfd, hh, dynrel_type, sec, | |
873 | sec_symndx, rel->r_offset, rel->r_addend)) | |
15bda425 JL |
874 | goto err_out; |
875 | ||
876 | /* If we are building a shared library and we just recorded | |
877 | a dynamic R_PARISC_FPTR64 relocation, then make sure the | |
878 | section symbol for this section ends up in the dynamic | |
879 | symbol table. */ | |
0e1862bb | 880 | if (bfd_link_pic (info) && dynrel_type == R_PARISC_FPTR64 |
c152c796 | 881 | && ! (bfd_elf_link_record_local_dynamic_symbol |
15bda425 | 882 | (info, abfd, sec_symndx))) |
b34976b6 | 883 | return FALSE; |
15bda425 JL |
884 | } |
885 | } | |
886 | ||
b34976b6 | 887 | return TRUE; |
15bda425 JL |
888 | |
889 | err_out: | |
b34976b6 | 890 | return FALSE; |
15bda425 JL |
891 | } |
892 | ||
893 | struct elf64_hppa_allocate_data | |
894 | { | |
895 | struct bfd_link_info *info; | |
896 | bfd_size_type ofs; | |
897 | }; | |
898 | ||
899 | /* Should we do dynamic things to this symbol? */ | |
900 | ||
b34976b6 | 901 | static bfd_boolean |
a03bd320 | 902 | elf64_hppa_dynamic_symbol_p (struct elf_link_hash_entry *eh, |
813c8a3c | 903 | struct bfd_link_info *info) |
15bda425 | 904 | { |
986a241f RH |
905 | /* ??? What, if anything, needs to happen wrt STV_PROTECTED symbols |
906 | and relocations that retrieve a function descriptor? Assume the | |
907 | worst for now. */ | |
a03bd320 | 908 | if (_bfd_elf_dynamic_symbol_p (eh, info, 1)) |
986a241f RH |
909 | { |
910 | /* ??? Why is this here and not elsewhere is_local_label_name. */ | |
a03bd320 | 911 | if (eh->root.root.string[0] == '$' && eh->root.root.string[1] == '$') |
986a241f | 912 | return FALSE; |
15bda425 | 913 | |
986a241f RH |
914 | return TRUE; |
915 | } | |
916 | else | |
b34976b6 | 917 | return FALSE; |
15bda425 JL |
918 | } |
919 | ||
4cc11e76 | 920 | /* Mark all functions exported by this file so that we can later allocate |
15bda425 JL |
921 | entries in .opd for them. */ |
922 | ||
b34976b6 | 923 | static bfd_boolean |
a03bd320 | 924 | elf64_hppa_mark_exported_functions (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 925 | { |
a03bd320 | 926 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
927 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
928 | struct elf64_hppa_link_hash_table *hppa_info; | |
929 | ||
a03bd320 | 930 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
931 | if (hppa_info == NULL) |
932 | return FALSE; | |
15bda425 | 933 | |
a03bd320 DA |
934 | if (eh |
935 | && (eh->root.type == bfd_link_hash_defined | |
936 | || eh->root.type == bfd_link_hash_defweak) | |
937 | && eh->root.u.def.section->output_section != NULL | |
938 | && eh->type == STT_FUNC) | |
15bda425 | 939 | { |
15bda425 JL |
940 | if (! hppa_info->opd_sec |
941 | && ! get_opd (hppa_info->root.dynobj, info, hppa_info)) | |
b34976b6 | 942 | return FALSE; |
15bda425 | 943 | |
a03bd320 DA |
944 | hh->want_opd = 1; |
945 | ||
832d951b | 946 | /* Put a flag here for output_symbol_hook. */ |
a03bd320 DA |
947 | hh->st_shndx = -1; |
948 | eh->needs_plt = 1; | |
15bda425 JL |
949 | } |
950 | ||
b34976b6 | 951 | return TRUE; |
15bda425 JL |
952 | } |
953 | ||
954 | /* Allocate space for a DLT entry. */ | |
955 | ||
b34976b6 | 956 | static bfd_boolean |
a03bd320 | 957 | allocate_global_data_dlt (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 958 | { |
a03bd320 | 959 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
960 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
961 | ||
a03bd320 | 962 | if (hh->want_dlt) |
15bda425 | 963 | { |
0e1862bb | 964 | if (bfd_link_pic (x->info)) |
15bda425 JL |
965 | { |
966 | /* Possibly add the symbol to the local dynamic symbol | |
967 | table since we might need to create a dynamic relocation | |
968 | against it. */ | |
a03bd320 | 969 | if (eh->dynindx == -1 && eh->type != STT_PARISC_MILLI) |
15bda425 | 970 | { |
a03bd320 | 971 | bfd *owner = eh->root.u.def.section->owner; |
15bda425 | 972 | |
c152c796 | 973 | if (! (bfd_elf_link_record_local_dynamic_symbol |
a03bd320 | 974 | (x->info, owner, hh->sym_indx))) |
b34976b6 | 975 | return FALSE; |
15bda425 JL |
976 | } |
977 | } | |
978 | ||
a03bd320 | 979 | hh->dlt_offset = x->ofs; |
15bda425 JL |
980 | x->ofs += DLT_ENTRY_SIZE; |
981 | } | |
b34976b6 | 982 | return TRUE; |
15bda425 JL |
983 | } |
984 | ||
985 | /* Allocate space for a DLT.PLT entry. */ | |
986 | ||
b34976b6 | 987 | static bfd_boolean |
a03bd320 | 988 | allocate_global_data_plt (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 989 | { |
a03bd320 | 990 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
4dfe6ac6 | 991 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *) data; |
15bda425 | 992 | |
a03bd320 DA |
993 | if (hh->want_plt |
994 | && elf64_hppa_dynamic_symbol_p (eh, x->info) | |
995 | && !((eh->root.type == bfd_link_hash_defined | |
996 | || eh->root.type == bfd_link_hash_defweak) | |
997 | && eh->root.u.def.section->output_section != NULL)) | |
15bda425 | 998 | { |
a03bd320 | 999 | hh->plt_offset = x->ofs; |
15bda425 | 1000 | x->ofs += PLT_ENTRY_SIZE; |
a03bd320 | 1001 | if (hh->plt_offset < 0x2000) |
4dfe6ac6 NC |
1002 | { |
1003 | struct elf64_hppa_link_hash_table *hppa_info; | |
1004 | ||
1005 | hppa_info = hppa_link_hash_table (x->info); | |
1006 | if (hppa_info == NULL) | |
1007 | return FALSE; | |
1008 | ||
1009 | hppa_info->gp_offset = hh->plt_offset; | |
1010 | } | |
15bda425 JL |
1011 | } |
1012 | else | |
a03bd320 | 1013 | hh->want_plt = 0; |
15bda425 | 1014 | |
b34976b6 | 1015 | return TRUE; |
15bda425 JL |
1016 | } |
1017 | ||
1018 | /* Allocate space for a STUB entry. */ | |
1019 | ||
b34976b6 | 1020 | static bfd_boolean |
a03bd320 | 1021 | allocate_global_data_stub (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 1022 | { |
a03bd320 | 1023 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1024 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
1025 | ||
a03bd320 DA |
1026 | if (hh->want_stub |
1027 | && elf64_hppa_dynamic_symbol_p (eh, x->info) | |
1028 | && !((eh->root.type == bfd_link_hash_defined | |
1029 | || eh->root.type == bfd_link_hash_defweak) | |
1030 | && eh->root.u.def.section->output_section != NULL)) | |
15bda425 | 1031 | { |
a03bd320 | 1032 | hh->stub_offset = x->ofs; |
15bda425 JL |
1033 | x->ofs += sizeof (plt_stub); |
1034 | } | |
1035 | else | |
a03bd320 | 1036 | hh->want_stub = 0; |
b34976b6 | 1037 | return TRUE; |
15bda425 JL |
1038 | } |
1039 | ||
1040 | /* Allocate space for a FPTR entry. */ | |
1041 | ||
b34976b6 | 1042 | static bfd_boolean |
a03bd320 | 1043 | allocate_global_data_opd (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 1044 | { |
a03bd320 | 1045 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1046 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
1047 | ||
a03bd320 | 1048 | if (hh && hh->want_opd) |
15bda425 | 1049 | { |
15bda425 JL |
1050 | /* We never need an opd entry for a symbol which is not |
1051 | defined by this output file. */ | |
a03bd320 DA |
1052 | if (hh && (hh->eh.root.type == bfd_link_hash_undefined |
1053 | || hh->eh.root.type == bfd_link_hash_undefweak | |
1054 | || hh->eh.root.u.def.section->output_section == NULL)) | |
1055 | hh->want_opd = 0; | |
15bda425 JL |
1056 | |
1057 | /* If we are creating a shared library, took the address of a local | |
1058 | function or might export this function from this object file, then | |
1059 | we have to create an opd descriptor. */ | |
0e1862bb | 1060 | else if (bfd_link_pic (x->info) |
a03bd320 DA |
1061 | || hh == NULL |
1062 | || (hh->eh.dynindx == -1 && hh->eh.type != STT_PARISC_MILLI) | |
1063 | || (hh->eh.root.type == bfd_link_hash_defined | |
1064 | || hh->eh.root.type == bfd_link_hash_defweak)) | |
15bda425 JL |
1065 | { |
1066 | /* If we are creating a shared library, then we will have to | |
1067 | create a runtime relocation for the symbol to properly | |
1068 | initialize the .opd entry. Make sure the symbol gets | |
1069 | added to the dynamic symbol table. */ | |
0e1862bb | 1070 | if (bfd_link_pic (x->info) |
a03bd320 | 1071 | && (hh == NULL || (hh->eh.dynindx == -1))) |
15bda425 JL |
1072 | { |
1073 | bfd *owner; | |
adfef0bd | 1074 | /* PR 6511: Default to using the dynamic symbol table. */ |
a03bd320 | 1075 | owner = (hh->owner ? hh->owner: eh->root.u.def.section->owner); |
15bda425 | 1076 | |
c152c796 | 1077 | if (!bfd_elf_link_record_local_dynamic_symbol |
a03bd320 | 1078 | (x->info, owner, hh->sym_indx)) |
b34976b6 | 1079 | return FALSE; |
15bda425 JL |
1080 | } |
1081 | ||
1082 | /* This may not be necessary or desirable anymore now that | |
1083 | we have some support for dealing with section symbols | |
1084 | in dynamic relocs. But name munging does make the result | |
1085 | much easier to debug. ie, the EPLT reloc will reference | |
1086 | a symbol like .foobar, instead of .text + offset. */ | |
0e1862bb | 1087 | if (bfd_link_pic (x->info) && eh) |
15bda425 JL |
1088 | { |
1089 | char *new_name; | |
1090 | struct elf_link_hash_entry *nh; | |
1091 | ||
e1fa0163 | 1092 | new_name = concat (".", eh->root.root.string, NULL); |
15bda425 JL |
1093 | |
1094 | nh = elf_link_hash_lookup (elf_hash_table (x->info), | |
b34976b6 | 1095 | new_name, TRUE, TRUE, TRUE); |
15bda425 | 1096 | |
e1fa0163 | 1097 | free (new_name); |
a03bd320 DA |
1098 | nh->root.type = eh->root.type; |
1099 | nh->root.u.def.value = eh->root.u.def.value; | |
1100 | nh->root.u.def.section = eh->root.u.def.section; | |
15bda425 | 1101 | |
c152c796 | 1102 | if (! bfd_elf_link_record_dynamic_symbol (x->info, nh)) |
b34976b6 | 1103 | return FALSE; |
15bda425 | 1104 | } |
a03bd320 | 1105 | hh->opd_offset = x->ofs; |
15bda425 JL |
1106 | x->ofs += OPD_ENTRY_SIZE; |
1107 | } | |
1108 | ||
1109 | /* Otherwise we do not need an opd entry. */ | |
1110 | else | |
a03bd320 | 1111 | hh->want_opd = 0; |
15bda425 | 1112 | } |
b34976b6 | 1113 | return TRUE; |
15bda425 JL |
1114 | } |
1115 | ||
1116 | /* HP requires the EI_OSABI field to be filled in. The assignment to | |
1117 | EI_ABIVERSION may not be strictly necessary. */ | |
1118 | ||
ed7e9d0b AM |
1119 | static bfd_boolean |
1120 | elf64_hppa_init_file_header (bfd *abfd, struct bfd_link_info *info) | |
15bda425 | 1121 | { |
ed7e9d0b | 1122 | Elf_Internal_Ehdr *i_ehdrp; |
15bda425 | 1123 | |
ed7e9d0b AM |
1124 | if (!_bfd_elf_init_file_header (abfd, info)) |
1125 | return FALSE; | |
68ffbac6 | 1126 | |
ed7e9d0b | 1127 | i_ehdrp = elf_elfheader (abfd); |
d1036acb L |
1128 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; |
1129 | i_ehdrp->e_ident[EI_ABIVERSION] = 1; | |
ed7e9d0b | 1130 | return TRUE; |
15bda425 JL |
1131 | } |
1132 | ||
1133 | /* Create function descriptor section (.opd). This section is called .opd | |
4cc11e76 | 1134 | because it contains "official procedure descriptors". The "official" |
15bda425 JL |
1135 | refers to the fact that these descriptors are used when taking the address |
1136 | of a procedure, thus ensuring a unique address for each procedure. */ | |
1137 | ||
b34976b6 | 1138 | static bfd_boolean |
813c8a3c DA |
1139 | get_opd (bfd *abfd, |
1140 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1141 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1142 | { |
1143 | asection *opd; | |
1144 | bfd *dynobj; | |
1145 | ||
1146 | opd = hppa_info->opd_sec; | |
1147 | if (!opd) | |
1148 | { | |
1149 | dynobj = hppa_info->root.dynobj; | |
1150 | if (!dynobj) | |
1151 | hppa_info->root.dynobj = dynobj = abfd; | |
1152 | ||
3d4d4302 AM |
1153 | opd = bfd_make_section_anyway_with_flags (dynobj, ".opd", |
1154 | (SEC_ALLOC | |
1155 | | SEC_LOAD | |
1156 | | SEC_HAS_CONTENTS | |
1157 | | SEC_IN_MEMORY | |
1158 | | SEC_LINKER_CREATED)); | |
15bda425 | 1159 | if (!opd |
fd361982 | 1160 | || !bfd_set_section_alignment (opd, 3)) |
15bda425 JL |
1161 | { |
1162 | BFD_ASSERT (0); | |
b34976b6 | 1163 | return FALSE; |
15bda425 JL |
1164 | } |
1165 | ||
1166 | hppa_info->opd_sec = opd; | |
1167 | } | |
1168 | ||
b34976b6 | 1169 | return TRUE; |
15bda425 JL |
1170 | } |
1171 | ||
1172 | /* Create the PLT section. */ | |
1173 | ||
b34976b6 | 1174 | static bfd_boolean |
813c8a3c DA |
1175 | get_plt (bfd *abfd, |
1176 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1177 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1178 | { |
1179 | asection *plt; | |
1180 | bfd *dynobj; | |
1181 | ||
9b8a8575 | 1182 | plt = hppa_info->root.splt; |
15bda425 JL |
1183 | if (!plt) |
1184 | { | |
1185 | dynobj = hppa_info->root.dynobj; | |
1186 | if (!dynobj) | |
1187 | hppa_info->root.dynobj = dynobj = abfd; | |
1188 | ||
3d4d4302 AM |
1189 | plt = bfd_make_section_anyway_with_flags (dynobj, ".plt", |
1190 | (SEC_ALLOC | |
1191 | | SEC_LOAD | |
1192 | | SEC_HAS_CONTENTS | |
1193 | | SEC_IN_MEMORY | |
1194 | | SEC_LINKER_CREATED)); | |
15bda425 | 1195 | if (!plt |
fd361982 | 1196 | || !bfd_set_section_alignment (plt, 3)) |
15bda425 JL |
1197 | { |
1198 | BFD_ASSERT (0); | |
b34976b6 | 1199 | return FALSE; |
15bda425 JL |
1200 | } |
1201 | ||
9b8a8575 | 1202 | hppa_info->root.splt = plt; |
15bda425 JL |
1203 | } |
1204 | ||
b34976b6 | 1205 | return TRUE; |
15bda425 JL |
1206 | } |
1207 | ||
1208 | /* Create the DLT section. */ | |
1209 | ||
b34976b6 | 1210 | static bfd_boolean |
813c8a3c DA |
1211 | get_dlt (bfd *abfd, |
1212 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1213 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1214 | { |
1215 | asection *dlt; | |
1216 | bfd *dynobj; | |
1217 | ||
1218 | dlt = hppa_info->dlt_sec; | |
1219 | if (!dlt) | |
1220 | { | |
1221 | dynobj = hppa_info->root.dynobj; | |
1222 | if (!dynobj) | |
1223 | hppa_info->root.dynobj = dynobj = abfd; | |
1224 | ||
3d4d4302 AM |
1225 | dlt = bfd_make_section_anyway_with_flags (dynobj, ".dlt", |
1226 | (SEC_ALLOC | |
1227 | | SEC_LOAD | |
1228 | | SEC_HAS_CONTENTS | |
1229 | | SEC_IN_MEMORY | |
1230 | | SEC_LINKER_CREATED)); | |
15bda425 | 1231 | if (!dlt |
fd361982 | 1232 | || !bfd_set_section_alignment (dlt, 3)) |
15bda425 JL |
1233 | { |
1234 | BFD_ASSERT (0); | |
b34976b6 | 1235 | return FALSE; |
15bda425 JL |
1236 | } |
1237 | ||
1238 | hppa_info->dlt_sec = dlt; | |
1239 | } | |
1240 | ||
b34976b6 | 1241 | return TRUE; |
15bda425 JL |
1242 | } |
1243 | ||
1244 | /* Create the stubs section. */ | |
1245 | ||
b34976b6 | 1246 | static bfd_boolean |
813c8a3c DA |
1247 | get_stub (bfd *abfd, |
1248 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1249 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1250 | { |
1251 | asection *stub; | |
1252 | bfd *dynobj; | |
1253 | ||
1254 | stub = hppa_info->stub_sec; | |
1255 | if (!stub) | |
1256 | { | |
1257 | dynobj = hppa_info->root.dynobj; | |
1258 | if (!dynobj) | |
1259 | hppa_info->root.dynobj = dynobj = abfd; | |
1260 | ||
3d4d4302 AM |
1261 | stub = bfd_make_section_anyway_with_flags (dynobj, ".stub", |
1262 | (SEC_ALLOC | SEC_LOAD | |
1263 | | SEC_HAS_CONTENTS | |
1264 | | SEC_IN_MEMORY | |
1265 | | SEC_READONLY | |
1266 | | SEC_LINKER_CREATED)); | |
15bda425 | 1267 | if (!stub |
fd361982 | 1268 | || !bfd_set_section_alignment (stub, 3)) |
15bda425 JL |
1269 | { |
1270 | BFD_ASSERT (0); | |
b34976b6 | 1271 | return FALSE; |
15bda425 JL |
1272 | } |
1273 | ||
1274 | hppa_info->stub_sec = stub; | |
1275 | } | |
1276 | ||
b34976b6 | 1277 | return TRUE; |
15bda425 JL |
1278 | } |
1279 | ||
1280 | /* Create sections necessary for dynamic linking. This is only a rough | |
1281 | cut and will likely change as we learn more about the somewhat | |
1282 | unusual dynamic linking scheme HP uses. | |
1283 | ||
1284 | .stub: | |
1285 | Contains code to implement cross-space calls. The first time one | |
1286 | of the stubs is used it will call into the dynamic linker, later | |
1287 | calls will go straight to the target. | |
1288 | ||
1289 | The only stub we support right now looks like | |
1290 | ||
1291 | ldd OFFSET(%dp),%r1 | |
1292 | bve %r0(%r1) | |
1293 | ldd OFFSET+8(%dp),%dp | |
1294 | ||
1295 | Other stubs may be needed in the future. We may want the remove | |
1296 | the break/nop instruction. It is only used right now to keep the | |
1297 | offset of a .plt entry and a .stub entry in sync. | |
1298 | ||
1299 | .dlt: | |
1300 | This is what most people call the .got. HP used a different name. | |
1301 | Losers. | |
1302 | ||
1303 | .rela.dlt: | |
1304 | Relocations for the DLT. | |
1305 | ||
1306 | .plt: | |
1307 | Function pointers as address,gp pairs. | |
1308 | ||
1309 | .rela.plt: | |
1310 | Should contain dynamic IPLT (and EPLT?) relocations. | |
1311 | ||
1312 | .opd: | |
fe8bc63d | 1313 | FPTRS |
15bda425 JL |
1314 | |
1315 | .rela.opd: | |
1316 | EPLT relocations for symbols exported from shared libraries. */ | |
1317 | ||
b34976b6 | 1318 | static bfd_boolean |
813c8a3c DA |
1319 | elf64_hppa_create_dynamic_sections (bfd *abfd, |
1320 | struct bfd_link_info *info) | |
15bda425 JL |
1321 | { |
1322 | asection *s; | |
4dfe6ac6 NC |
1323 | struct elf64_hppa_link_hash_table *hppa_info; |
1324 | ||
1325 | hppa_info = hppa_link_hash_table (info); | |
1326 | if (hppa_info == NULL) | |
1327 | return FALSE; | |
15bda425 | 1328 | |
4dfe6ac6 | 1329 | if (! get_stub (abfd, info, hppa_info)) |
b34976b6 | 1330 | return FALSE; |
15bda425 | 1331 | |
4dfe6ac6 | 1332 | if (! get_dlt (abfd, info, hppa_info)) |
b34976b6 | 1333 | return FALSE; |
15bda425 | 1334 | |
4dfe6ac6 | 1335 | if (! get_plt (abfd, info, hppa_info)) |
b34976b6 | 1336 | return FALSE; |
15bda425 | 1337 | |
4dfe6ac6 | 1338 | if (! get_opd (abfd, info, hppa_info)) |
b34976b6 | 1339 | return FALSE; |
15bda425 | 1340 | |
3d4d4302 AM |
1341 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.dlt", |
1342 | (SEC_ALLOC | SEC_LOAD | |
1343 | | SEC_HAS_CONTENTS | |
1344 | | SEC_IN_MEMORY | |
1345 | | SEC_READONLY | |
1346 | | SEC_LINKER_CREATED)); | |
15bda425 | 1347 | if (s == NULL |
fd361982 | 1348 | || !bfd_set_section_alignment (s, 3)) |
b34976b6 | 1349 | return FALSE; |
4dfe6ac6 | 1350 | hppa_info->dlt_rel_sec = s; |
15bda425 | 1351 | |
3d4d4302 AM |
1352 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.plt", |
1353 | (SEC_ALLOC | SEC_LOAD | |
1354 | | SEC_HAS_CONTENTS | |
1355 | | SEC_IN_MEMORY | |
1356 | | SEC_READONLY | |
1357 | | SEC_LINKER_CREATED)); | |
15bda425 | 1358 | if (s == NULL |
fd361982 | 1359 | || !bfd_set_section_alignment (s, 3)) |
b34976b6 | 1360 | return FALSE; |
9b8a8575 | 1361 | hppa_info->root.srelplt = s; |
15bda425 | 1362 | |
3d4d4302 AM |
1363 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.data", |
1364 | (SEC_ALLOC | SEC_LOAD | |
1365 | | SEC_HAS_CONTENTS | |
1366 | | SEC_IN_MEMORY | |
1367 | | SEC_READONLY | |
1368 | | SEC_LINKER_CREATED)); | |
15bda425 | 1369 | if (s == NULL |
fd361982 | 1370 | || !bfd_set_section_alignment (s, 3)) |
b34976b6 | 1371 | return FALSE; |
4dfe6ac6 | 1372 | hppa_info->other_rel_sec = s; |
15bda425 | 1373 | |
3d4d4302 AM |
1374 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.opd", |
1375 | (SEC_ALLOC | SEC_LOAD | |
1376 | | SEC_HAS_CONTENTS | |
1377 | | SEC_IN_MEMORY | |
1378 | | SEC_READONLY | |
1379 | | SEC_LINKER_CREATED)); | |
15bda425 | 1380 | if (s == NULL |
fd361982 | 1381 | || !bfd_set_section_alignment (s, 3)) |
b34976b6 | 1382 | return FALSE; |
4dfe6ac6 | 1383 | hppa_info->opd_rel_sec = s; |
15bda425 | 1384 | |
b34976b6 | 1385 | return TRUE; |
15bda425 JL |
1386 | } |
1387 | ||
1388 | /* Allocate dynamic relocations for those symbols that turned out | |
1389 | to be dynamic. */ | |
1390 | ||
b34976b6 | 1391 | static bfd_boolean |
a03bd320 | 1392 | allocate_dynrel_entries (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 1393 | { |
a03bd320 | 1394 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1395 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
1396 | struct elf64_hppa_link_hash_table *hppa_info; | |
1397 | struct elf64_hppa_dyn_reloc_entry *rent; | |
b34976b6 | 1398 | bfd_boolean dynamic_symbol, shared; |
15bda425 | 1399 | |
a03bd320 | 1400 | hppa_info = hppa_link_hash_table (x->info); |
4dfe6ac6 NC |
1401 | if (hppa_info == NULL) |
1402 | return FALSE; | |
1403 | ||
a03bd320 | 1404 | dynamic_symbol = elf64_hppa_dynamic_symbol_p (eh, x->info); |
0e1862bb | 1405 | shared = bfd_link_pic (x->info); |
15bda425 JL |
1406 | |
1407 | /* We may need to allocate relocations for a non-dynamic symbol | |
1408 | when creating a shared library. */ | |
1409 | if (!dynamic_symbol && !shared) | |
b34976b6 | 1410 | return TRUE; |
15bda425 JL |
1411 | |
1412 | /* Take care of the normal data relocations. */ | |
1413 | ||
a03bd320 | 1414 | for (rent = hh->reloc_entries; rent; rent = rent->next) |
15bda425 | 1415 | { |
d663e1cd JL |
1416 | /* Allocate one iff we are building a shared library, the relocation |
1417 | isn't a R_PARISC_FPTR64, or we don't want an opd entry. */ | |
a03bd320 | 1418 | if (!shared && rent->type == R_PARISC_FPTR64 && hh->want_opd) |
d663e1cd JL |
1419 | continue; |
1420 | ||
eea6121a | 1421 | hppa_info->other_rel_sec->size += sizeof (Elf64_External_Rela); |
15bda425 JL |
1422 | |
1423 | /* Make sure this symbol gets into the dynamic symbol table if it is | |
1424 | not already recorded. ?!? This should not be in the loop since | |
1425 | the symbol need only be added once. */ | |
a03bd320 | 1426 | if (eh->dynindx == -1 && eh->type != STT_PARISC_MILLI) |
c152c796 | 1427 | if (!bfd_elf_link_record_local_dynamic_symbol |
a03bd320 | 1428 | (x->info, rent->sec->owner, hh->sym_indx)) |
b34976b6 | 1429 | return FALSE; |
15bda425 JL |
1430 | } |
1431 | ||
1432 | /* Take care of the GOT and PLT relocations. */ | |
1433 | ||
a03bd320 | 1434 | if ((dynamic_symbol || shared) && hh->want_dlt) |
eea6121a | 1435 | hppa_info->dlt_rel_sec->size += sizeof (Elf64_External_Rela); |
15bda425 JL |
1436 | |
1437 | /* If we are building a shared library, then every symbol that has an | |
1438 | opd entry will need an EPLT relocation to relocate the symbol's address | |
1439 | and __gp value based on the runtime load address. */ | |
a03bd320 | 1440 | if (shared && hh->want_opd) |
eea6121a | 1441 | hppa_info->opd_rel_sec->size += sizeof (Elf64_External_Rela); |
15bda425 | 1442 | |
a03bd320 | 1443 | if (hh->want_plt && dynamic_symbol) |
15bda425 JL |
1444 | { |
1445 | bfd_size_type t = 0; | |
1446 | ||
1447 | /* Dynamic symbols get one IPLT relocation. Local symbols in | |
1448 | shared libraries get two REL relocations. Local symbols in | |
1449 | main applications get nothing. */ | |
1450 | if (dynamic_symbol) | |
1451 | t = sizeof (Elf64_External_Rela); | |
1452 | else if (shared) | |
1453 | t = 2 * sizeof (Elf64_External_Rela); | |
1454 | ||
9b8a8575 | 1455 | hppa_info->root.srelplt->size += t; |
15bda425 JL |
1456 | } |
1457 | ||
b34976b6 | 1458 | return TRUE; |
15bda425 JL |
1459 | } |
1460 | ||
1461 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
1462 | regular object. */ | |
1463 | ||
b34976b6 | 1464 | static bfd_boolean |
813c8a3c | 1465 | elf64_hppa_adjust_dynamic_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
a03bd320 | 1466 | struct elf_link_hash_entry *eh) |
15bda425 JL |
1467 | { |
1468 | /* ??? Undefined symbols with PLT entries should be re-defined | |
1469 | to be the PLT entry. */ | |
1470 | ||
1471 | /* If this is a weak symbol, and there is a real definition, the | |
1472 | processor independent code will have arranged for us to see the | |
1473 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 1474 | if (eh->is_weakalias) |
15bda425 | 1475 | { |
60d67dc8 AM |
1476 | struct elf_link_hash_entry *def = weakdef (eh); |
1477 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
1478 | eh->root.u.def.section = def->root.u.def.section; | |
1479 | eh->root.u.def.value = def->root.u.def.value; | |
b34976b6 | 1480 | return TRUE; |
15bda425 JL |
1481 | } |
1482 | ||
1483 | /* If this is a reference to a symbol defined by a dynamic object which | |
1484 | is not a function, we might allocate the symbol in our .dynbss section | |
1485 | and allocate a COPY dynamic relocation. | |
1486 | ||
1487 | But PA64 code is canonically PIC, so as a rule we can avoid this sort | |
1488 | of hackery. */ | |
1489 | ||
b34976b6 | 1490 | return TRUE; |
15bda425 JL |
1491 | } |
1492 | ||
47b7c2db AM |
1493 | /* This function is called via elf_link_hash_traverse to mark millicode |
1494 | symbols with a dynindx of -1 and to remove the string table reference | |
1495 | from the dynamic symbol table. If the symbol is not a millicode symbol, | |
1496 | elf64_hppa_mark_exported_functions is called. */ | |
1497 | ||
b34976b6 | 1498 | static bfd_boolean |
a03bd320 | 1499 | elf64_hppa_mark_milli_and_exported_functions (struct elf_link_hash_entry *eh, |
813c8a3c | 1500 | void *data) |
47b7c2db | 1501 | { |
7686d77d | 1502 | struct bfd_link_info *info = (struct bfd_link_info *) data; |
47b7c2db | 1503 | |
7686d77d | 1504 | if (eh->type == STT_PARISC_MILLI) |
47b7c2db | 1505 | { |
7686d77d | 1506 | if (eh->dynindx != -1) |
47b7c2db | 1507 | { |
7686d77d | 1508 | eh->dynindx = -1; |
47b7c2db | 1509 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, |
7686d77d | 1510 | eh->dynstr_index); |
47b7c2db | 1511 | } |
b34976b6 | 1512 | return TRUE; |
47b7c2db AM |
1513 | } |
1514 | ||
a03bd320 | 1515 | return elf64_hppa_mark_exported_functions (eh, data); |
47b7c2db AM |
1516 | } |
1517 | ||
15bda425 JL |
1518 | /* Set the final sizes of the dynamic sections and allocate memory for |
1519 | the contents of our special sections. */ | |
1520 | ||
b34976b6 | 1521 | static bfd_boolean |
a03bd320 | 1522 | elf64_hppa_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) |
15bda425 | 1523 | { |
a03bd320 DA |
1524 | struct elf64_hppa_link_hash_table *hppa_info; |
1525 | struct elf64_hppa_allocate_data data; | |
15bda425 | 1526 | bfd *dynobj; |
a03bd320 DA |
1527 | bfd *ibfd; |
1528 | asection *sec; | |
b34976b6 AM |
1529 | bfd_boolean plt; |
1530 | bfd_boolean relocs; | |
1531 | bfd_boolean reltext; | |
15bda425 | 1532 | |
a03bd320 | 1533 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
1534 | if (hppa_info == NULL) |
1535 | return FALSE; | |
15bda425 | 1536 | |
ce558b89 | 1537 | dynobj = hppa_info->root.dynobj; |
15bda425 JL |
1538 | BFD_ASSERT (dynobj != NULL); |
1539 | ||
47b7c2db AM |
1540 | /* Mark each function this program exports so that we will allocate |
1541 | space in the .opd section for each function's FPTR. If we are | |
1542 | creating dynamic sections, change the dynamic index of millicode | |
1543 | symbols to -1 and remove them from the string table for .dynstr. | |
1544 | ||
1545 | We have to traverse the main linker hash table since we have to | |
1546 | find functions which may not have been mentioned in any relocs. */ | |
ce558b89 AM |
1547 | elf_link_hash_traverse (&hppa_info->root, |
1548 | (hppa_info->root.dynamic_sections_created | |
47b7c2db AM |
1549 | ? elf64_hppa_mark_milli_and_exported_functions |
1550 | : elf64_hppa_mark_exported_functions), | |
1551 | info); | |
1552 | ||
ce558b89 | 1553 | if (hppa_info->root.dynamic_sections_created) |
15bda425 JL |
1554 | { |
1555 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 1556 | if (bfd_link_executable (info) && !info->nointerp) |
15bda425 | 1557 | { |
3d4d4302 | 1558 | sec = bfd_get_linker_section (dynobj, ".interp"); |
a03bd320 DA |
1559 | BFD_ASSERT (sec != NULL); |
1560 | sec->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
1561 | sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
15bda425 JL |
1562 | } |
1563 | } | |
1564 | else | |
1565 | { | |
1566 | /* We may have created entries in the .rela.got section. | |
1567 | However, if we are not creating the dynamic sections, we will | |
1568 | not actually use these entries. Reset the size of .rela.dlt, | |
1569 | which will cause it to get stripped from the output file | |
1570 | below. */ | |
ce558b89 | 1571 | sec = hppa_info->dlt_rel_sec; |
a03bd320 DA |
1572 | if (sec != NULL) |
1573 | sec->size = 0; | |
1574 | } | |
1575 | ||
1576 | /* Set up DLT, PLT and OPD offsets for local syms, and space for local | |
1577 | dynamic relocs. */ | |
c72f2fb2 | 1578 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
a03bd320 DA |
1579 | { |
1580 | bfd_signed_vma *local_dlt; | |
1581 | bfd_signed_vma *end_local_dlt; | |
1582 | bfd_signed_vma *local_plt; | |
1583 | bfd_signed_vma *end_local_plt; | |
1584 | bfd_signed_vma *local_opd; | |
1585 | bfd_signed_vma *end_local_opd; | |
1586 | bfd_size_type locsymcount; | |
1587 | Elf_Internal_Shdr *symtab_hdr; | |
1588 | asection *srel; | |
1589 | ||
1590 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
1591 | continue; | |
1592 | ||
1593 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
1594 | { | |
1595 | struct elf64_hppa_dyn_reloc_entry *hdh_p; | |
1596 | ||
1597 | for (hdh_p = ((struct elf64_hppa_dyn_reloc_entry *) | |
1598 | elf_section_data (sec)->local_dynrel); | |
1599 | hdh_p != NULL; | |
1600 | hdh_p = hdh_p->next) | |
1601 | { | |
1602 | if (!bfd_is_abs_section (hdh_p->sec) | |
1603 | && bfd_is_abs_section (hdh_p->sec->output_section)) | |
1604 | { | |
1605 | /* Input section has been discarded, either because | |
1606 | it is a copy of a linkonce section or due to | |
1607 | linker script /DISCARD/, so we'll be discarding | |
1608 | the relocs too. */ | |
1609 | } | |
1610 | else if (hdh_p->count != 0) | |
1611 | { | |
1612 | srel = elf_section_data (hdh_p->sec)->sreloc; | |
1613 | srel->size += hdh_p->count * sizeof (Elf64_External_Rela); | |
1614 | if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0) | |
1615 | info->flags |= DF_TEXTREL; | |
1616 | } | |
1617 | } | |
1618 | } | |
1619 | ||
1620 | local_dlt = elf_local_got_refcounts (ibfd); | |
1621 | if (!local_dlt) | |
1622 | continue; | |
1623 | ||
1624 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
1625 | locsymcount = symtab_hdr->sh_info; | |
1626 | end_local_dlt = local_dlt + locsymcount; | |
1627 | sec = hppa_info->dlt_sec; | |
1628 | srel = hppa_info->dlt_rel_sec; | |
1629 | for (; local_dlt < end_local_dlt; ++local_dlt) | |
1630 | { | |
1631 | if (*local_dlt > 0) | |
1632 | { | |
1633 | *local_dlt = sec->size; | |
1634 | sec->size += DLT_ENTRY_SIZE; | |
0e1862bb | 1635 | if (bfd_link_pic (info)) |
07d6d2b8 | 1636 | { |
a03bd320 | 1637 | srel->size += sizeof (Elf64_External_Rela); |
07d6d2b8 | 1638 | } |
a03bd320 DA |
1639 | } |
1640 | else | |
1641 | *local_dlt = (bfd_vma) -1; | |
1642 | } | |
1643 | ||
1644 | local_plt = end_local_dlt; | |
1645 | end_local_plt = local_plt + locsymcount; | |
1646 | if (! hppa_info->root.dynamic_sections_created) | |
1647 | { | |
1648 | /* Won't be used, but be safe. */ | |
1649 | for (; local_plt < end_local_plt; ++local_plt) | |
1650 | *local_plt = (bfd_vma) -1; | |
1651 | } | |
1652 | else | |
1653 | { | |
9b8a8575 L |
1654 | sec = hppa_info->root.splt; |
1655 | srel = hppa_info->root.srelplt; | |
a03bd320 DA |
1656 | for (; local_plt < end_local_plt; ++local_plt) |
1657 | { | |
1658 | if (*local_plt > 0) | |
1659 | { | |
1660 | *local_plt = sec->size; | |
1661 | sec->size += PLT_ENTRY_SIZE; | |
0e1862bb | 1662 | if (bfd_link_pic (info)) |
a03bd320 DA |
1663 | srel->size += sizeof (Elf64_External_Rela); |
1664 | } | |
1665 | else | |
1666 | *local_plt = (bfd_vma) -1; | |
1667 | } | |
1668 | } | |
1669 | ||
1670 | local_opd = end_local_plt; | |
1671 | end_local_opd = local_opd + locsymcount; | |
1672 | if (! hppa_info->root.dynamic_sections_created) | |
1673 | { | |
1674 | /* Won't be used, but be safe. */ | |
1675 | for (; local_opd < end_local_opd; ++local_opd) | |
1676 | *local_opd = (bfd_vma) -1; | |
1677 | } | |
1678 | else | |
1679 | { | |
1680 | sec = hppa_info->opd_sec; | |
1681 | srel = hppa_info->opd_rel_sec; | |
1682 | for (; local_opd < end_local_opd; ++local_opd) | |
1683 | { | |
1684 | if (*local_opd > 0) | |
1685 | { | |
1686 | *local_opd = sec->size; | |
1687 | sec->size += OPD_ENTRY_SIZE; | |
0e1862bb | 1688 | if (bfd_link_pic (info)) |
a03bd320 DA |
1689 | srel->size += sizeof (Elf64_External_Rela); |
1690 | } | |
1691 | else | |
1692 | *local_opd = (bfd_vma) -1; | |
1693 | } | |
1694 | } | |
15bda425 JL |
1695 | } |
1696 | ||
1697 | /* Allocate the GOT entries. */ | |
1698 | ||
1699 | data.info = info; | |
a03bd320 | 1700 | if (hppa_info->dlt_sec) |
15bda425 | 1701 | { |
a03bd320 | 1702 | data.ofs = hppa_info->dlt_sec->size; |
ce558b89 | 1703 | elf_link_hash_traverse (&hppa_info->root, |
a03bd320 | 1704 | allocate_global_data_dlt, &data); |
eea6121a | 1705 | hppa_info->dlt_sec->size = data.ofs; |
a03bd320 | 1706 | } |
15bda425 | 1707 | |
9b8a8575 | 1708 | if (hppa_info->root.splt) |
a03bd320 | 1709 | { |
9b8a8575 | 1710 | data.ofs = hppa_info->root.splt->size; |
ce558b89 | 1711 | elf_link_hash_traverse (&hppa_info->root, |
07d6d2b8 | 1712 | allocate_global_data_plt, &data); |
9b8a8575 | 1713 | hppa_info->root.splt->size = data.ofs; |
a03bd320 | 1714 | } |
15bda425 | 1715 | |
a03bd320 DA |
1716 | if (hppa_info->stub_sec) |
1717 | { | |
15bda425 | 1718 | data.ofs = 0x0; |
ce558b89 | 1719 | elf_link_hash_traverse (&hppa_info->root, |
a03bd320 | 1720 | allocate_global_data_stub, &data); |
eea6121a | 1721 | hppa_info->stub_sec->size = data.ofs; |
15bda425 JL |
1722 | } |
1723 | ||
15bda425 | 1724 | /* Allocate space for entries in the .opd section. */ |
a03bd320 | 1725 | if (hppa_info->opd_sec) |
15bda425 | 1726 | { |
a03bd320 | 1727 | data.ofs = hppa_info->opd_sec->size; |
ce558b89 | 1728 | elf_link_hash_traverse (&hppa_info->root, |
a03bd320 | 1729 | allocate_global_data_opd, &data); |
eea6121a | 1730 | hppa_info->opd_sec->size = data.ofs; |
15bda425 JL |
1731 | } |
1732 | ||
1733 | /* Now allocate space for dynamic relocations, if necessary. */ | |
1734 | if (hppa_info->root.dynamic_sections_created) | |
ce558b89 | 1735 | elf_link_hash_traverse (&hppa_info->root, |
a03bd320 | 1736 | allocate_dynrel_entries, &data); |
15bda425 JL |
1737 | |
1738 | /* The sizes of all the sections are set. Allocate memory for them. */ | |
b34976b6 AM |
1739 | plt = FALSE; |
1740 | relocs = FALSE; | |
1741 | reltext = FALSE; | |
a03bd320 | 1742 | for (sec = dynobj->sections; sec != NULL; sec = sec->next) |
15bda425 JL |
1743 | { |
1744 | const char *name; | |
15bda425 | 1745 | |
a03bd320 | 1746 | if ((sec->flags & SEC_LINKER_CREATED) == 0) |
15bda425 JL |
1747 | continue; |
1748 | ||
1749 | /* It's OK to base decisions on the section name, because none | |
1750 | of the dynobj section names depend upon the input files. */ | |
fd361982 | 1751 | name = bfd_section_name (sec); |
15bda425 | 1752 | |
15bda425 JL |
1753 | if (strcmp (name, ".plt") == 0) |
1754 | { | |
c456f082 | 1755 | /* Remember whether there is a PLT. */ |
a03bd320 | 1756 | plt = sec->size != 0; |
15bda425 | 1757 | } |
c456f082 | 1758 | else if (strcmp (name, ".opd") == 0 |
0112cd26 | 1759 | || CONST_STRNEQ (name, ".dlt") |
c456f082 AM |
1760 | || strcmp (name, ".stub") == 0 |
1761 | || strcmp (name, ".got") == 0) | |
15bda425 | 1762 | { |
d663e1cd | 1763 | /* Strip this section if we don't need it; see the comment below. */ |
15bda425 | 1764 | } |
0112cd26 | 1765 | else if (CONST_STRNEQ (name, ".rela")) |
15bda425 | 1766 | { |
a03bd320 | 1767 | if (sec->size != 0) |
15bda425 JL |
1768 | { |
1769 | asection *target; | |
1770 | ||
1771 | /* Remember whether there are any reloc sections other | |
1772 | than .rela.plt. */ | |
1773 | if (strcmp (name, ".rela.plt") != 0) | |
1774 | { | |
1775 | const char *outname; | |
1776 | ||
b34976b6 | 1777 | relocs = TRUE; |
15bda425 JL |
1778 | |
1779 | /* If this relocation section applies to a read only | |
1780 | section, then we probably need a DT_TEXTREL | |
1781 | entry. The entries in the .rela.plt section | |
1782 | really apply to the .got section, which we | |
1783 | created ourselves and so know is not readonly. */ | |
fd361982 | 1784 | outname = bfd_section_name (sec->output_section); |
15bda425 JL |
1785 | target = bfd_get_section_by_name (output_bfd, outname + 4); |
1786 | if (target != NULL | |
1787 | && (target->flags & SEC_READONLY) != 0 | |
1788 | && (target->flags & SEC_ALLOC) != 0) | |
b34976b6 | 1789 | reltext = TRUE; |
15bda425 JL |
1790 | } |
1791 | ||
1792 | /* We use the reloc_count field as a counter if we need | |
1793 | to copy relocs into the output file. */ | |
a03bd320 | 1794 | sec->reloc_count = 0; |
15bda425 JL |
1795 | } |
1796 | } | |
c456f082 | 1797 | else |
15bda425 JL |
1798 | { |
1799 | /* It's not one of our sections, so don't allocate space. */ | |
1800 | continue; | |
1801 | } | |
1802 | ||
a03bd320 | 1803 | if (sec->size == 0) |
15bda425 | 1804 | { |
c456f082 AM |
1805 | /* If we don't need this section, strip it from the |
1806 | output file. This is mostly to handle .rela.bss and | |
1807 | .rela.plt. We must create both sections in | |
1808 | create_dynamic_sections, because they must be created | |
1809 | before the linker maps input sections to output | |
1810 | sections. The linker does that before | |
1811 | adjust_dynamic_symbol is called, and it is that | |
1812 | function which decides whether anything needs to go | |
1813 | into these sections. */ | |
a03bd320 | 1814 | sec->flags |= SEC_EXCLUDE; |
15bda425 JL |
1815 | continue; |
1816 | } | |
1817 | ||
a03bd320 | 1818 | if ((sec->flags & SEC_HAS_CONTENTS) == 0) |
c456f082 AM |
1819 | continue; |
1820 | ||
15bda425 | 1821 | /* Allocate memory for the section contents if it has not |
832d951b AM |
1822 | been allocated already. We use bfd_zalloc here in case |
1823 | unused entries are not reclaimed before the section's | |
1824 | contents are written out. This should not happen, but this | |
1825 | way if it does, we get a R_PARISC_NONE reloc instead of | |
1826 | garbage. */ | |
a03bd320 | 1827 | if (sec->contents == NULL) |
15bda425 | 1828 | { |
a03bd320 DA |
1829 | sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->size); |
1830 | if (sec->contents == NULL) | |
b34976b6 | 1831 | return FALSE; |
15bda425 JL |
1832 | } |
1833 | } | |
1834 | ||
ce558b89 | 1835 | if (hppa_info->root.dynamic_sections_created) |
15bda425 JL |
1836 | { |
1837 | /* Always create a DT_PLTGOT. It actually has nothing to do with | |
1838 | the PLT, it is how we communicate the __gp value of a load | |
1839 | module to the dynamic linker. */ | |
dc810e39 | 1840 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 1841 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 AM |
1842 | |
1843 | if (!add_dynamic_entry (DT_HP_DLD_FLAGS, 0) | |
1844 | || !add_dynamic_entry (DT_PLTGOT, 0)) | |
b34976b6 | 1845 | return FALSE; |
15bda425 JL |
1846 | |
1847 | /* Add some entries to the .dynamic section. We fill in the | |
1848 | values later, in elf64_hppa_finish_dynamic_sections, but we | |
1849 | must add the entries now so that we get the correct size for | |
1850 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
1851 | dynamic linker and used by the debugger. */ | |
0e1862bb | 1852 | if (! bfd_link_pic (info)) |
15bda425 | 1853 | { |
dc810e39 AM |
1854 | if (!add_dynamic_entry (DT_DEBUG, 0) |
1855 | || !add_dynamic_entry (DT_HP_DLD_HOOK, 0) | |
1856 | || !add_dynamic_entry (DT_HP_LOAD_MAP, 0)) | |
b34976b6 | 1857 | return FALSE; |
15bda425 JL |
1858 | } |
1859 | ||
f2482cb2 NC |
1860 | /* Force DT_FLAGS to always be set. |
1861 | Required by HPUX 11.00 patch PHSS_26559. */ | |
1862 | if (!add_dynamic_entry (DT_FLAGS, (info)->flags)) | |
b34976b6 | 1863 | return FALSE; |
f2482cb2 | 1864 | |
15bda425 JL |
1865 | if (plt) |
1866 | { | |
dc810e39 AM |
1867 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
1868 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
1869 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 1870 | return FALSE; |
15bda425 JL |
1871 | } |
1872 | ||
1873 | if (relocs) | |
1874 | { | |
dc810e39 AM |
1875 | if (!add_dynamic_entry (DT_RELA, 0) |
1876 | || !add_dynamic_entry (DT_RELASZ, 0) | |
1877 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
b34976b6 | 1878 | return FALSE; |
15bda425 JL |
1879 | } |
1880 | ||
1881 | if (reltext) | |
1882 | { | |
dc810e39 | 1883 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 1884 | return FALSE; |
d6cf2879 | 1885 | info->flags |= DF_TEXTREL; |
15bda425 JL |
1886 | } |
1887 | } | |
dc810e39 | 1888 | #undef add_dynamic_entry |
15bda425 | 1889 | |
b34976b6 | 1890 | return TRUE; |
15bda425 JL |
1891 | } |
1892 | ||
1893 | /* Called after we have output the symbol into the dynamic symbol | |
1894 | table, but before we output the symbol into the normal symbol | |
1895 | table. | |
1896 | ||
1897 | For some symbols we had to change their address when outputting | |
1898 | the dynamic symbol table. We undo that change here so that | |
1899 | the symbols have their expected value in the normal symbol | |
1900 | table. Ick. */ | |
1901 | ||
6e0b88f1 | 1902 | static int |
a03bd320 | 1903 | elf64_hppa_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
813c8a3c DA |
1904 | const char *name, |
1905 | Elf_Internal_Sym *sym, | |
1906 | asection *input_sec ATTRIBUTE_UNUSED, | |
a03bd320 | 1907 | struct elf_link_hash_entry *eh) |
15bda425 | 1908 | { |
a03bd320 | 1909 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1910 | |
1911 | /* We may be called with the file symbol or section symbols. | |
1912 | They never need munging, so it is safe to ignore them. */ | |
a03bd320 | 1913 | if (!name || !eh) |
6e0b88f1 | 1914 | return 1; |
15bda425 | 1915 | |
832d951b AM |
1916 | /* Function symbols for which we created .opd entries *may* have been |
1917 | munged by finish_dynamic_symbol and have to be un-munged here. | |
1918 | ||
1919 | Note that finish_dynamic_symbol sometimes turns dynamic symbols | |
1920 | into non-dynamic ones, so we initialize st_shndx to -1 in | |
1921 | mark_exported_functions and check to see if it was overwritten | |
a03bd320 DA |
1922 | here instead of just checking eh->dynindx. */ |
1923 | if (hh->want_opd && hh->st_shndx != -1) | |
15bda425 JL |
1924 | { |
1925 | /* Restore the saved value and section index. */ | |
a03bd320 DA |
1926 | sym->st_value = hh->st_value; |
1927 | sym->st_shndx = hh->st_shndx; | |
15bda425 JL |
1928 | } |
1929 | ||
6e0b88f1 | 1930 | return 1; |
15bda425 JL |
1931 | } |
1932 | ||
1933 | /* Finish up dynamic symbol handling. We set the contents of various | |
1934 | dynamic sections here. */ | |
1935 | ||
b34976b6 | 1936 | static bfd_boolean |
813c8a3c DA |
1937 | elf64_hppa_finish_dynamic_symbol (bfd *output_bfd, |
1938 | struct bfd_link_info *info, | |
a03bd320 | 1939 | struct elf_link_hash_entry *eh, |
813c8a3c | 1940 | Elf_Internal_Sym *sym) |
15bda425 | 1941 | { |
a03bd320 | 1942 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
c7e2358a | 1943 | asection *stub, *splt, *sopd, *spltrel; |
15bda425 | 1944 | struct elf64_hppa_link_hash_table *hppa_info; |
15bda425 | 1945 | |
a03bd320 | 1946 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
1947 | if (hppa_info == NULL) |
1948 | return FALSE; | |
15bda425 JL |
1949 | |
1950 | stub = hppa_info->stub_sec; | |
9b8a8575 | 1951 | splt = hppa_info->root.splt; |
15bda425 | 1952 | sopd = hppa_info->opd_sec; |
9b8a8575 | 1953 | spltrel = hppa_info->root.srelplt; |
15bda425 | 1954 | |
15bda425 JL |
1955 | /* Incredible. It is actually necessary to NOT use the symbol's real |
1956 | value when building the dynamic symbol table for a shared library. | |
1957 | At least for symbols that refer to functions. | |
1958 | ||
1959 | We will store a new value and section index into the symbol long | |
1960 | enough to output it into the dynamic symbol table, then we restore | |
1961 | the original values (in elf64_hppa_link_output_symbol_hook). */ | |
a03bd320 | 1962 | if (hh->want_opd) |
15bda425 | 1963 | { |
f12123c0 | 1964 | BFD_ASSERT (sopd != NULL); |
d663e1cd | 1965 | |
15bda425 JL |
1966 | /* Save away the original value and section index so that we |
1967 | can restore them later. */ | |
a03bd320 DA |
1968 | hh->st_value = sym->st_value; |
1969 | hh->st_shndx = sym->st_shndx; | |
15bda425 JL |
1970 | |
1971 | /* For the dynamic symbol table entry, we want the value to be | |
1972 | address of this symbol's entry within the .opd section. */ | |
a03bd320 | 1973 | sym->st_value = (hh->opd_offset |
15bda425 JL |
1974 | + sopd->output_offset |
1975 | + sopd->output_section->vma); | |
1976 | sym->st_shndx = _bfd_elf_section_from_bfd_section (output_bfd, | |
1977 | sopd->output_section); | |
1978 | } | |
1979 | ||
1980 | /* Initialize a .plt entry if requested. */ | |
a03bd320 DA |
1981 | if (hh->want_plt |
1982 | && elf64_hppa_dynamic_symbol_p (eh, info)) | |
15bda425 JL |
1983 | { |
1984 | bfd_vma value; | |
1985 | Elf_Internal_Rela rel; | |
947216bf | 1986 | bfd_byte *loc; |
15bda425 | 1987 | |
f12123c0 | 1988 | BFD_ASSERT (splt != NULL && spltrel != NULL); |
d663e1cd | 1989 | |
15bda425 JL |
1990 | /* We do not actually care about the value in the PLT entry |
1991 | if we are creating a shared library and the symbol is | |
1992 | still undefined, we create a dynamic relocation to fill | |
1993 | in the correct value. */ | |
0e1862bb | 1994 | if (bfd_link_pic (info) && eh->root.type == bfd_link_hash_undefined) |
15bda425 JL |
1995 | value = 0; |
1996 | else | |
a03bd320 | 1997 | value = (eh->root.u.def.value + eh->root.u.def.section->vma); |
15bda425 | 1998 | |
fe8bc63d | 1999 | /* Fill in the entry in the procedure linkage table. |
15bda425 JL |
2000 | |
2001 | The format of a plt entry is | |
fe8bc63d | 2002 | <funcaddr> <__gp>. |
15bda425 JL |
2003 | |
2004 | plt_offset is the offset within the PLT section at which to | |
fe8bc63d | 2005 | install the PLT entry. |
15bda425 JL |
2006 | |
2007 | We are modifying the in-memory PLT contents here, so we do not add | |
2008 | in the output_offset of the PLT section. */ | |
2009 | ||
a03bd320 | 2010 | bfd_put_64 (splt->owner, value, splt->contents + hh->plt_offset); |
586338b8 | 2011 | value = _bfd_get_gp_value (info->output_bfd); |
a03bd320 | 2012 | bfd_put_64 (splt->owner, value, splt->contents + hh->plt_offset + 0x8); |
15bda425 JL |
2013 | |
2014 | /* Create a dynamic IPLT relocation for this entry. | |
2015 | ||
2016 | We are creating a relocation in the output file's PLT section, | |
2017 | which is included within the DLT secton. So we do need to include | |
2018 | the PLT's output_offset in the computation of the relocation's | |
2019 | address. */ | |
a03bd320 | 2020 | rel.r_offset = (hh->plt_offset + splt->output_offset |
15bda425 | 2021 | + splt->output_section->vma); |
a03bd320 | 2022 | rel.r_info = ELF64_R_INFO (hh->eh.dynindx, R_PARISC_IPLT); |
15bda425 JL |
2023 | rel.r_addend = 0; |
2024 | ||
947216bf AM |
2025 | loc = spltrel->contents; |
2026 | loc += spltrel->reloc_count++ * sizeof (Elf64_External_Rela); | |
586338b8 | 2027 | bfd_elf64_swap_reloca_out (info->output_bfd, &rel, loc); |
15bda425 JL |
2028 | } |
2029 | ||
2030 | /* Initialize an external call stub entry if requested. */ | |
a03bd320 DA |
2031 | if (hh->want_stub |
2032 | && elf64_hppa_dynamic_symbol_p (eh, info)) | |
15bda425 JL |
2033 | { |
2034 | bfd_vma value; | |
2035 | int insn; | |
b352eebf | 2036 | unsigned int max_offset; |
15bda425 | 2037 | |
f12123c0 | 2038 | BFD_ASSERT (stub != NULL); |
d663e1cd | 2039 | |
15bda425 JL |
2040 | /* Install the generic stub template. |
2041 | ||
2042 | We are modifying the contents of the stub section, so we do not | |
2043 | need to include the stub section's output_offset here. */ | |
a03bd320 | 2044 | memcpy (stub->contents + hh->stub_offset, plt_stub, sizeof (plt_stub)); |
15bda425 JL |
2045 | |
2046 | /* Fix up the first ldd instruction. | |
2047 | ||
2048 | We are modifying the contents of the STUB section in memory, | |
fe8bc63d | 2049 | so we do not need to include its output offset in this computation. |
15bda425 JL |
2050 | |
2051 | Note the plt_offset value is the value of the PLT entry relative to | |
2052 | the start of the PLT section. These instructions will reference | |
2053 | data relative to the value of __gp, which may not necessarily have | |
2054 | the same address as the start of the PLT section. | |
2055 | ||
2056 | gp_offset contains the offset of __gp within the PLT section. */ | |
a03bd320 | 2057 | value = hh->plt_offset - hppa_info->gp_offset; |
fe8bc63d | 2058 | |
a03bd320 | 2059 | insn = bfd_get_32 (stub->owner, stub->contents + hh->stub_offset); |
b352eebf AM |
2060 | if (output_bfd->arch_info->mach >= 25) |
2061 | { | |
2062 | /* Wide mode allows 16 bit offsets. */ | |
2063 | max_offset = 32768; | |
2064 | insn &= ~ 0xfff1; | |
dc810e39 | 2065 | insn |= re_assemble_16 ((int) value); |
b352eebf AM |
2066 | } |
2067 | else | |
2068 | { | |
2069 | max_offset = 8192; | |
2070 | insn &= ~ 0x3ff1; | |
dc810e39 | 2071 | insn |= re_assemble_14 ((int) value); |
b352eebf AM |
2072 | } |
2073 | ||
2074 | if ((value & 7) || value + max_offset >= 2*max_offset - 8) | |
2075 | { | |
4eca0228 | 2076 | _bfd_error_handler |
695344c0 | 2077 | /* xgettext:c-format */ |
2dcf00ce AM |
2078 | (_("stub entry for %s cannot load .plt, dp offset = %" PRId64), |
2079 | hh->eh.root.root.string, (int64_t) value); | |
b34976b6 | 2080 | return FALSE; |
b352eebf AM |
2081 | } |
2082 | ||
dc810e39 | 2083 | bfd_put_32 (stub->owner, (bfd_vma) insn, |
a03bd320 | 2084 | stub->contents + hh->stub_offset); |
15bda425 JL |
2085 | |
2086 | /* Fix up the second ldd instruction. */ | |
b352eebf | 2087 | value += 8; |
a03bd320 | 2088 | insn = bfd_get_32 (stub->owner, stub->contents + hh->stub_offset + 8); |
b352eebf AM |
2089 | if (output_bfd->arch_info->mach >= 25) |
2090 | { | |
2091 | insn &= ~ 0xfff1; | |
dc810e39 | 2092 | insn |= re_assemble_16 ((int) value); |
b352eebf AM |
2093 | } |
2094 | else | |
2095 | { | |
2096 | insn &= ~ 0x3ff1; | |
dc810e39 | 2097 | insn |= re_assemble_14 ((int) value); |
b352eebf | 2098 | } |
dc810e39 | 2099 | bfd_put_32 (stub->owner, (bfd_vma) insn, |
a03bd320 | 2100 | stub->contents + hh->stub_offset + 8); |
15bda425 JL |
2101 | } |
2102 | ||
b34976b6 | 2103 | return TRUE; |
15bda425 JL |
2104 | } |
2105 | ||
2106 | /* The .opd section contains FPTRs for each function this file | |
2107 | exports. Initialize the FPTR entries. */ | |
2108 | ||
b34976b6 | 2109 | static bfd_boolean |
a03bd320 | 2110 | elf64_hppa_finalize_opd (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 2111 | { |
a03bd320 | 2112 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
2113 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
2114 | struct elf64_hppa_link_hash_table *hppa_info; | |
15bda425 JL |
2115 | asection *sopd; |
2116 | asection *sopdrel; | |
2117 | ||
a03bd320 | 2118 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2119 | if (hppa_info == NULL) |
2120 | return FALSE; | |
2121 | ||
15bda425 JL |
2122 | sopd = hppa_info->opd_sec; |
2123 | sopdrel = hppa_info->opd_rel_sec; | |
2124 | ||
a03bd320 | 2125 | if (hh->want_opd) |
15bda425 JL |
2126 | { |
2127 | bfd_vma value; | |
2128 | ||
fe8bc63d | 2129 | /* The first two words of an .opd entry are zero. |
15bda425 JL |
2130 | |
2131 | We are modifying the contents of the OPD section in memory, so we | |
2132 | do not need to include its output offset in this computation. */ | |
a03bd320 | 2133 | memset (sopd->contents + hh->opd_offset, 0, 16); |
15bda425 | 2134 | |
a03bd320 DA |
2135 | value = (eh->root.u.def.value |
2136 | + eh->root.u.def.section->output_section->vma | |
2137 | + eh->root.u.def.section->output_offset); | |
15bda425 JL |
2138 | |
2139 | /* The next word is the address of the function. */ | |
a03bd320 | 2140 | bfd_put_64 (sopd->owner, value, sopd->contents + hh->opd_offset + 16); |
15bda425 JL |
2141 | |
2142 | /* The last word is our local __gp value. */ | |
586338b8 | 2143 | value = _bfd_get_gp_value (info->output_bfd); |
a03bd320 | 2144 | bfd_put_64 (sopd->owner, value, sopd->contents + hh->opd_offset + 24); |
15bda425 JL |
2145 | } |
2146 | ||
2147 | /* If we are generating a shared library, we must generate EPLT relocations | |
2148 | for each entry in the .opd, even for static functions (they may have | |
2149 | had their address taken). */ | |
0e1862bb | 2150 | if (bfd_link_pic (info) && hh->want_opd) |
15bda425 | 2151 | { |
947216bf AM |
2152 | Elf_Internal_Rela rel; |
2153 | bfd_byte *loc; | |
15bda425 JL |
2154 | int dynindx; |
2155 | ||
2156 | /* We may need to do a relocation against a local symbol, in | |
2157 | which case we have to look up it's dynamic symbol index off | |
2158 | the local symbol hash table. */ | |
a03bd320 DA |
2159 | if (eh->dynindx != -1) |
2160 | dynindx = eh->dynindx; | |
15bda425 JL |
2161 | else |
2162 | dynindx | |
a03bd320 DA |
2163 | = _bfd_elf_link_lookup_local_dynindx (info, hh->owner, |
2164 | hh->sym_indx); | |
15bda425 JL |
2165 | |
2166 | /* The offset of this relocation is the absolute address of the | |
2167 | .opd entry for this symbol. */ | |
a03bd320 | 2168 | rel.r_offset = (hh->opd_offset + sopd->output_offset |
15bda425 JL |
2169 | + sopd->output_section->vma); |
2170 | ||
2171 | /* If H is non-null, then we have an external symbol. | |
2172 | ||
2173 | It is imperative that we use a different dynamic symbol for the | |
2174 | EPLT relocation if the symbol has global scope. | |
2175 | ||
2176 | In the dynamic symbol table, the function symbol will have a value | |
2177 | which is address of the function's .opd entry. | |
2178 | ||
2179 | Thus, we can not use that dynamic symbol for the EPLT relocation | |
2180 | (if we did, the data in the .opd would reference itself rather | |
2181 | than the actual address of the function). Instead we have to use | |
2182 | a new dynamic symbol which has the same value as the original global | |
fe8bc63d | 2183 | function symbol. |
15bda425 JL |
2184 | |
2185 | We prefix the original symbol with a "." and use the new symbol in | |
2186 | the EPLT relocation. This new symbol has already been recorded in | |
2187 | the symbol table, we just have to look it up and use it. | |
2188 | ||
2189 | We do not have such problems with static functions because we do | |
2190 | not make their addresses in the dynamic symbol table point to | |
2191 | the .opd entry. Ultimately this should be safe since a static | |
2192 | function can not be directly referenced outside of its shared | |
2193 | library. | |
2194 | ||
2195 | We do have to play similar games for FPTR relocations in shared | |
2196 | libraries, including those for static symbols. See the FPTR | |
2197 | handling in elf64_hppa_finalize_dynreloc. */ | |
a03bd320 | 2198 | if (eh) |
15bda425 JL |
2199 | { |
2200 | char *new_name; | |
2201 | struct elf_link_hash_entry *nh; | |
2202 | ||
e1fa0163 | 2203 | new_name = concat (".", eh->root.root.string, NULL); |
15bda425 JL |
2204 | |
2205 | nh = elf_link_hash_lookup (elf_hash_table (info), | |
adfef0bd | 2206 | new_name, TRUE, TRUE, FALSE); |
68ffbac6 | 2207 | |
15bda425 JL |
2208 | /* All we really want from the new symbol is its dynamic |
2209 | symbol index. */ | |
7fb9f789 NC |
2210 | if (nh) |
2211 | dynindx = nh->dynindx; | |
e1fa0163 | 2212 | free (new_name); |
15bda425 JL |
2213 | } |
2214 | ||
2215 | rel.r_addend = 0; | |
2216 | rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_EPLT); | |
2217 | ||
947216bf AM |
2218 | loc = sopdrel->contents; |
2219 | loc += sopdrel->reloc_count++ * sizeof (Elf64_External_Rela); | |
586338b8 | 2220 | bfd_elf64_swap_reloca_out (info->output_bfd, &rel, loc); |
15bda425 | 2221 | } |
b34976b6 | 2222 | return TRUE; |
15bda425 JL |
2223 | } |
2224 | ||
2225 | /* The .dlt section contains addresses for items referenced through the | |
2226 | dlt. Note that we can have a DLTIND relocation for a local symbol, thus | |
2227 | we can not depend on finish_dynamic_symbol to initialize the .dlt. */ | |
2228 | ||
b34976b6 | 2229 | static bfd_boolean |
a03bd320 | 2230 | elf64_hppa_finalize_dlt (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 2231 | { |
a03bd320 | 2232 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
2233 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
2234 | struct elf64_hppa_link_hash_table *hppa_info; | |
2235 | asection *sdlt, *sdltrel; | |
15bda425 | 2236 | |
a03bd320 | 2237 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2238 | if (hppa_info == NULL) |
2239 | return FALSE; | |
15bda425 JL |
2240 | |
2241 | sdlt = hppa_info->dlt_sec; | |
2242 | sdltrel = hppa_info->dlt_rel_sec; | |
2243 | ||
2244 | /* H/DYN_H may refer to a local variable and we know it's | |
2245 | address, so there is no need to create a relocation. Just install | |
2246 | the proper value into the DLT, note this shortcut can not be | |
2247 | skipped when building a shared library. */ | |
0e1862bb | 2248 | if (! bfd_link_pic (info) && hh && hh->want_dlt) |
15bda425 JL |
2249 | { |
2250 | bfd_vma value; | |
2251 | ||
2252 | /* If we had an LTOFF_FPTR style relocation we want the DLT entry | |
fe8bc63d | 2253 | to point to the FPTR entry in the .opd section. |
15bda425 JL |
2254 | |
2255 | We include the OPD's output offset in this computation as | |
2256 | we are referring to an absolute address in the resulting | |
2257 | object file. */ | |
a03bd320 | 2258 | if (hh->want_opd) |
15bda425 | 2259 | { |
a03bd320 | 2260 | value = (hh->opd_offset |
15bda425 JL |
2261 | + hppa_info->opd_sec->output_offset |
2262 | + hppa_info->opd_sec->output_section->vma); | |
2263 | } | |
a03bd320 DA |
2264 | else if ((eh->root.type == bfd_link_hash_defined |
2265 | || eh->root.type == bfd_link_hash_defweak) | |
2266 | && eh->root.u.def.section) | |
15bda425 | 2267 | { |
a03bd320 DA |
2268 | value = eh->root.u.def.value + eh->root.u.def.section->output_offset; |
2269 | if (eh->root.u.def.section->output_section) | |
2270 | value += eh->root.u.def.section->output_section->vma; | |
15bda425 | 2271 | else |
a03bd320 | 2272 | value += eh->root.u.def.section->vma; |
15bda425 | 2273 | } |
3db4b612 JL |
2274 | else |
2275 | /* We have an undefined function reference. */ | |
2276 | value = 0; | |
15bda425 JL |
2277 | |
2278 | /* We do not need to include the output offset of the DLT section | |
2279 | here because we are modifying the in-memory contents. */ | |
a03bd320 | 2280 | bfd_put_64 (sdlt->owner, value, sdlt->contents + hh->dlt_offset); |
15bda425 JL |
2281 | } |
2282 | ||
4cc11e76 | 2283 | /* Create a relocation for the DLT entry associated with this symbol. |
15bda425 | 2284 | When building a shared library the symbol does not have to be dynamic. */ |
a03bd320 | 2285 | if (hh->want_dlt |
0e1862bb | 2286 | && (elf64_hppa_dynamic_symbol_p (eh, info) || bfd_link_pic (info))) |
15bda425 | 2287 | { |
947216bf AM |
2288 | Elf_Internal_Rela rel; |
2289 | bfd_byte *loc; | |
15bda425 JL |
2290 | int dynindx; |
2291 | ||
2292 | /* We may need to do a relocation against a local symbol, in | |
2293 | which case we have to look up it's dynamic symbol index off | |
2294 | the local symbol hash table. */ | |
a03bd320 DA |
2295 | if (eh && eh->dynindx != -1) |
2296 | dynindx = eh->dynindx; | |
15bda425 JL |
2297 | else |
2298 | dynindx | |
a03bd320 DA |
2299 | = _bfd_elf_link_lookup_local_dynindx (info, hh->owner, |
2300 | hh->sym_indx); | |
15bda425 | 2301 | |
15bda425 JL |
2302 | /* Create a dynamic relocation for this entry. Do include the output |
2303 | offset of the DLT entry since we need an absolute address in the | |
2304 | resulting object file. */ | |
a03bd320 | 2305 | rel.r_offset = (hh->dlt_offset + sdlt->output_offset |
15bda425 | 2306 | + sdlt->output_section->vma); |
a03bd320 | 2307 | if (eh && eh->type == STT_FUNC) |
15bda425 JL |
2308 | rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_FPTR64); |
2309 | else | |
2310 | rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_DIR64); | |
2311 | rel.r_addend = 0; | |
2312 | ||
947216bf AM |
2313 | loc = sdltrel->contents; |
2314 | loc += sdltrel->reloc_count++ * sizeof (Elf64_External_Rela); | |
586338b8 | 2315 | bfd_elf64_swap_reloca_out (info->output_bfd, &rel, loc); |
15bda425 | 2316 | } |
b34976b6 | 2317 | return TRUE; |
15bda425 JL |
2318 | } |
2319 | ||
2320 | /* Finalize the dynamic relocations. Specifically the FPTR relocations | |
2321 | for dynamic functions used to initialize static data. */ | |
2322 | ||
b34976b6 | 2323 | static bfd_boolean |
a03bd320 | 2324 | elf64_hppa_finalize_dynreloc (struct elf_link_hash_entry *eh, |
813c8a3c | 2325 | void *data) |
15bda425 | 2326 | { |
a03bd320 | 2327 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
2328 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
2329 | struct elf64_hppa_link_hash_table *hppa_info; | |
15bda425 JL |
2330 | int dynamic_symbol; |
2331 | ||
a03bd320 | 2332 | dynamic_symbol = elf64_hppa_dynamic_symbol_p (eh, info); |
15bda425 | 2333 | |
0e1862bb | 2334 | if (!dynamic_symbol && !bfd_link_pic (info)) |
b34976b6 | 2335 | return TRUE; |
15bda425 | 2336 | |
a03bd320 | 2337 | if (hh->reloc_entries) |
15bda425 JL |
2338 | { |
2339 | struct elf64_hppa_dyn_reloc_entry *rent; | |
2340 | int dynindx; | |
2341 | ||
a03bd320 | 2342 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2343 | if (hppa_info == NULL) |
2344 | return FALSE; | |
15bda425 JL |
2345 | |
2346 | /* We may need to do a relocation against a local symbol, in | |
2347 | which case we have to look up it's dynamic symbol index off | |
2348 | the local symbol hash table. */ | |
a03bd320 DA |
2349 | if (eh->dynindx != -1) |
2350 | dynindx = eh->dynindx; | |
15bda425 JL |
2351 | else |
2352 | dynindx | |
a03bd320 DA |
2353 | = _bfd_elf_link_lookup_local_dynindx (info, hh->owner, |
2354 | hh->sym_indx); | |
15bda425 | 2355 | |
a03bd320 | 2356 | for (rent = hh->reloc_entries; rent; rent = rent->next) |
15bda425 | 2357 | { |
947216bf AM |
2358 | Elf_Internal_Rela rel; |
2359 | bfd_byte *loc; | |
15bda425 | 2360 | |
d663e1cd JL |
2361 | /* Allocate one iff we are building a shared library, the relocation |
2362 | isn't a R_PARISC_FPTR64, or we don't want an opd entry. */ | |
0e1862bb L |
2363 | if (!bfd_link_pic (info) |
2364 | && rent->type == R_PARISC_FPTR64 && hh->want_opd) | |
d663e1cd | 2365 | continue; |
15bda425 | 2366 | |
fe8bc63d | 2367 | /* Create a dynamic relocation for this entry. |
15bda425 JL |
2368 | |
2369 | We need the output offset for the reloc's section because | |
2370 | we are creating an absolute address in the resulting object | |
2371 | file. */ | |
2372 | rel.r_offset = (rent->offset + rent->sec->output_offset | |
2373 | + rent->sec->output_section->vma); | |
2374 | ||
2375 | /* An FPTR64 relocation implies that we took the address of | |
2376 | a function and that the function has an entry in the .opd | |
2377 | section. We want the FPTR64 relocation to reference the | |
2378 | entry in .opd. | |
2379 | ||
2380 | We could munge the symbol value in the dynamic symbol table | |
2381 | (in fact we already do for functions with global scope) to point | |
2382 | to the .opd entry. Then we could use that dynamic symbol in | |
2383 | this relocation. | |
2384 | ||
2385 | Or we could do something sensible, not munge the symbol's | |
2386 | address and instead just use a different symbol to reference | |
2387 | the .opd entry. At least that seems sensible until you | |
2388 | realize there's no local dynamic symbols we can use for that | |
2389 | purpose. Thus the hair in the check_relocs routine. | |
fe8bc63d | 2390 | |
15bda425 JL |
2391 | We use a section symbol recorded by check_relocs as the |
2392 | base symbol for the relocation. The addend is the difference | |
2393 | between the section symbol and the address of the .opd entry. */ | |
0e1862bb L |
2394 | if (bfd_link_pic (info) |
2395 | && rent->type == R_PARISC_FPTR64 && hh->want_opd) | |
15bda425 JL |
2396 | { |
2397 | bfd_vma value, value2; | |
15bda425 JL |
2398 | |
2399 | /* First compute the address of the opd entry for this symbol. */ | |
a03bd320 | 2400 | value = (hh->opd_offset |
15bda425 JL |
2401 | + hppa_info->opd_sec->output_section->vma |
2402 | + hppa_info->opd_sec->output_offset); | |
2403 | ||
2404 | /* Compute the value of the start of the section with | |
2405 | the relocation. */ | |
2406 | value2 = (rent->sec->output_section->vma | |
2407 | + rent->sec->output_offset); | |
2408 | ||
2409 | /* Compute the difference between the start of the section | |
2410 | with the relocation and the opd entry. */ | |
2411 | value -= value2; | |
fe8bc63d | 2412 | |
15bda425 JL |
2413 | /* The result becomes the addend of the relocation. */ |
2414 | rel.r_addend = value; | |
2415 | ||
2416 | /* The section symbol becomes the symbol for the dynamic | |
2417 | relocation. */ | |
2418 | dynindx | |
2419 | = _bfd_elf_link_lookup_local_dynindx (info, | |
2420 | rent->sec->owner, | |
2421 | rent->sec_symndx); | |
2422 | } | |
2423 | else | |
2424 | rel.r_addend = rent->addend; | |
2425 | ||
2426 | rel.r_info = ELF64_R_INFO (dynindx, rent->type); | |
2427 | ||
947216bf AM |
2428 | loc = hppa_info->other_rel_sec->contents; |
2429 | loc += (hppa_info->other_rel_sec->reloc_count++ | |
2430 | * sizeof (Elf64_External_Rela)); | |
586338b8 | 2431 | bfd_elf64_swap_reloca_out (info->output_bfd, &rel, loc); |
15bda425 JL |
2432 | } |
2433 | } | |
2434 | ||
b34976b6 | 2435 | return TRUE; |
15bda425 JL |
2436 | } |
2437 | ||
5ac81c74 JL |
2438 | /* Used to decide how to sort relocs in an optimal manner for the |
2439 | dynamic linker, before writing them out. */ | |
2440 | ||
2441 | static enum elf_reloc_type_class | |
7e612e98 AM |
2442 | elf64_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
2443 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
2444 | const Elf_Internal_Rela *rela) | |
5ac81c74 | 2445 | { |
cf35638d | 2446 | if (ELF64_R_SYM (rela->r_info) == STN_UNDEF) |
5ac81c74 JL |
2447 | return reloc_class_relative; |
2448 | ||
2449 | switch ((int) ELF64_R_TYPE (rela->r_info)) | |
2450 | { | |
2451 | case R_PARISC_IPLT: | |
2452 | return reloc_class_plt; | |
2453 | case R_PARISC_COPY: | |
2454 | return reloc_class_copy; | |
2455 | default: | |
2456 | return reloc_class_normal; | |
2457 | } | |
2458 | } | |
2459 | ||
15bda425 JL |
2460 | /* Finish up the dynamic sections. */ |
2461 | ||
b34976b6 | 2462 | static bfd_boolean |
813c8a3c DA |
2463 | elf64_hppa_finish_dynamic_sections (bfd *output_bfd, |
2464 | struct bfd_link_info *info) | |
15bda425 JL |
2465 | { |
2466 | bfd *dynobj; | |
2467 | asection *sdyn; | |
2468 | struct elf64_hppa_link_hash_table *hppa_info; | |
2469 | ||
a03bd320 | 2470 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2471 | if (hppa_info == NULL) |
2472 | return FALSE; | |
15bda425 JL |
2473 | |
2474 | /* Finalize the contents of the .opd section. */ | |
a03bd320 DA |
2475 | elf_link_hash_traverse (elf_hash_table (info), |
2476 | elf64_hppa_finalize_opd, | |
2477 | info); | |
15bda425 | 2478 | |
a03bd320 DA |
2479 | elf_link_hash_traverse (elf_hash_table (info), |
2480 | elf64_hppa_finalize_dynreloc, | |
2481 | info); | |
15bda425 JL |
2482 | |
2483 | /* Finalize the contents of the .dlt section. */ | |
2484 | dynobj = elf_hash_table (info)->dynobj; | |
2485 | /* Finalize the contents of the .dlt section. */ | |
a03bd320 DA |
2486 | elf_link_hash_traverse (elf_hash_table (info), |
2487 | elf64_hppa_finalize_dlt, | |
2488 | info); | |
15bda425 | 2489 | |
3d4d4302 | 2490 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
15bda425 JL |
2491 | |
2492 | if (elf_hash_table (info)->dynamic_sections_created) | |
2493 | { | |
2494 | Elf64_External_Dyn *dyncon, *dynconend; | |
15bda425 JL |
2495 | |
2496 | BFD_ASSERT (sdyn != NULL); | |
2497 | ||
2498 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
eea6121a | 2499 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
15bda425 JL |
2500 | for (; dyncon < dynconend; dyncon++) |
2501 | { | |
2502 | Elf_Internal_Dyn dyn; | |
2503 | asection *s; | |
2504 | ||
2505 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
2506 | ||
2507 | switch (dyn.d_tag) | |
2508 | { | |
2509 | default: | |
2510 | break; | |
2511 | ||
2512 | case DT_HP_LOAD_MAP: | |
2513 | /* Compute the absolute address of 16byte scratchpad area | |
2514 | for the dynamic linker. | |
2515 | ||
2516 | By convention the linker script will allocate the scratchpad | |
2517 | area at the start of the .data section. So all we have to | |
2518 | to is find the start of the .data section. */ | |
2519 | s = bfd_get_section_by_name (output_bfd, ".data"); | |
a505d7ac MR |
2520 | if (!s) |
2521 | return FALSE; | |
15bda425 JL |
2522 | dyn.d_un.d_ptr = s->vma; |
2523 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2524 | break; | |
2525 | ||
2526 | case DT_PLTGOT: | |
2527 | /* HP's use PLTGOT to set the GOT register. */ | |
2528 | dyn.d_un.d_ptr = _bfd_get_gp_value (output_bfd); | |
2529 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2530 | break; | |
2531 | ||
2532 | case DT_JMPREL: | |
9b8a8575 | 2533 | s = hppa_info->root.srelplt; |
15bda425 JL |
2534 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
2535 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2536 | break; | |
2537 | ||
2538 | case DT_PLTRELSZ: | |
9b8a8575 | 2539 | s = hppa_info->root.srelplt; |
eea6121a | 2540 | dyn.d_un.d_val = s->size; |
15bda425 JL |
2541 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
2542 | break; | |
2543 | ||
2544 | case DT_RELA: | |
2545 | s = hppa_info->other_rel_sec; | |
eea6121a | 2546 | if (! s || ! s->size) |
15bda425 | 2547 | s = hppa_info->dlt_rel_sec; |
eea6121a | 2548 | if (! s || ! s->size) |
5ac81c74 | 2549 | s = hppa_info->opd_rel_sec; |
15bda425 JL |
2550 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
2551 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2552 | break; | |
2553 | ||
2554 | case DT_RELASZ: | |
2555 | s = hppa_info->other_rel_sec; | |
eea6121a | 2556 | dyn.d_un.d_val = s->size; |
15bda425 | 2557 | s = hppa_info->dlt_rel_sec; |
eea6121a | 2558 | dyn.d_un.d_val += s->size; |
15bda425 | 2559 | s = hppa_info->opd_rel_sec; |
eea6121a | 2560 | dyn.d_un.d_val += s->size; |
15bda425 JL |
2561 | /* There is some question about whether or not the size of |
2562 | the PLT relocs should be included here. HP's tools do | |
2563 | it, so we'll emulate them. */ | |
9b8a8575 | 2564 | s = hppa_info->root.srelplt; |
eea6121a | 2565 | dyn.d_un.d_val += s->size; |
15bda425 JL |
2566 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
2567 | break; | |
2568 | ||
2569 | } | |
2570 | } | |
2571 | } | |
2572 | ||
b34976b6 | 2573 | return TRUE; |
15bda425 JL |
2574 | } |
2575 | ||
235ecfbc NC |
2576 | /* Support for core dump NOTE sections. */ |
2577 | ||
2578 | static bfd_boolean | |
2579 | elf64_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
2580 | { | |
2581 | int offset; | |
2582 | size_t size; | |
2583 | ||
2584 | switch (note->descsz) | |
2585 | { | |
2586 | default: | |
2587 | return FALSE; | |
2588 | ||
2589 | case 760: /* Linux/hppa */ | |
2590 | /* pr_cursig */ | |
228e534f | 2591 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
235ecfbc NC |
2592 | |
2593 | /* pr_pid */ | |
228e534f | 2594 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
235ecfbc NC |
2595 | |
2596 | /* pr_reg */ | |
2597 | offset = 112; | |
2598 | size = 640; | |
2599 | ||
2600 | break; | |
2601 | } | |
2602 | ||
2603 | /* Make a ".reg/999" section. */ | |
2604 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
2605 | size, note->descpos + offset); | |
2606 | } | |
2607 | ||
2608 | static bfd_boolean | |
2609 | elf64_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
2610 | { | |
2611 | char * command; | |
2612 | int n; | |
2613 | ||
2614 | switch (note->descsz) | |
2615 | { | |
2616 | default: | |
2617 | return FALSE; | |
2618 | ||
2619 | case 136: /* Linux/hppa elf_prpsinfo. */ | |
228e534f | 2620 | elf_tdata (abfd)->core->program |
235ecfbc | 2621 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
228e534f | 2622 | elf_tdata (abfd)->core->command |
235ecfbc NC |
2623 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
2624 | } | |
2625 | ||
2626 | /* Note that for some reason, a spurious space is tacked | |
2627 | onto the end of the args in some (at least one anyway) | |
2628 | implementations, so strip it off if it exists. */ | |
228e534f | 2629 | command = elf_tdata (abfd)->core->command; |
235ecfbc NC |
2630 | n = strlen (command); |
2631 | ||
2632 | if (0 < n && command[n - 1] == ' ') | |
2633 | command[n - 1] = '\0'; | |
2634 | ||
2635 | return TRUE; | |
2636 | } | |
2637 | ||
15bda425 JL |
2638 | /* Return the number of additional phdrs we will need. |
2639 | ||
2640 | The generic ELF code only creates PT_PHDRs for executables. The HP | |
fe8bc63d | 2641 | dynamic linker requires PT_PHDRs for dynamic libraries too. |
15bda425 JL |
2642 | |
2643 | This routine indicates that the backend needs one additional program | |
2644 | header for that case. | |
2645 | ||
2646 | Note we do not have access to the link info structure here, so we have | |
2647 | to guess whether or not we are building a shared library based on the | |
2648 | existence of a .interp section. */ | |
2649 | ||
2650 | static int | |
a6b96beb | 2651 | elf64_hppa_additional_program_headers (bfd *abfd, |
813c8a3c | 2652 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
15bda425 JL |
2653 | { |
2654 | asection *s; | |
2655 | ||
2656 | /* If we are creating a shared library, then we have to create a | |
2657 | PT_PHDR segment. HP's dynamic linker chokes without it. */ | |
2658 | s = bfd_get_section_by_name (abfd, ".interp"); | |
2659 | if (! s) | |
2660 | return 1; | |
2661 | return 0; | |
2662 | } | |
2663 | ||
1a9ccd70 NC |
2664 | static bfd_boolean |
2665 | elf64_hppa_allow_non_load_phdr (bfd *abfd ATTRIBUTE_UNUSED, | |
2666 | const Elf_Internal_Phdr *phdr ATTRIBUTE_UNUSED, | |
2667 | unsigned int count ATTRIBUTE_UNUSED) | |
2668 | { | |
2669 | return TRUE; | |
2670 | } | |
2671 | ||
15bda425 JL |
2672 | /* Allocate and initialize any program headers required by this |
2673 | specific backend. | |
2674 | ||
2675 | The generic ELF code only creates PT_PHDRs for executables. The HP | |
fe8bc63d | 2676 | dynamic linker requires PT_PHDRs for dynamic libraries too. |
15bda425 JL |
2677 | |
2678 | This allocates the PT_PHDR and initializes it in a manner suitable | |
fe8bc63d | 2679 | for the HP linker. |
15bda425 JL |
2680 | |
2681 | Note we do not have access to the link info structure here, so we have | |
2682 | to guess whether or not we are building a shared library based on the | |
2683 | existence of a .interp section. */ | |
2684 | ||
b34976b6 | 2685 | static bfd_boolean |
22b05d33 | 2686 | elf64_hppa_modify_segment_map (bfd *abfd, struct bfd_link_info *info) |
15bda425 | 2687 | { |
edd21aca | 2688 | struct elf_segment_map *m; |
15bda425 | 2689 | |
22b05d33 AM |
2690 | m = elf_seg_map (abfd); |
2691 | if (info != NULL && !info->user_phdrs && m != NULL && m->p_type != PT_PHDR) | |
15bda425 | 2692 | { |
22b05d33 AM |
2693 | m = ((struct elf_segment_map *) |
2694 | bfd_zalloc (abfd, (bfd_size_type) sizeof *m)); | |
15bda425 | 2695 | if (m == NULL) |
22b05d33 | 2696 | return FALSE; |
15bda425 | 2697 | |
22b05d33 AM |
2698 | m->p_type = PT_PHDR; |
2699 | m->p_flags = PF_R | PF_X; | |
2700 | m->p_flags_valid = 1; | |
2701 | m->p_paddr_valid = 1; | |
2702 | m->includes_phdrs = 1; | |
15bda425 | 2703 | |
22b05d33 AM |
2704 | m->next = elf_seg_map (abfd); |
2705 | elf_seg_map (abfd) = m; | |
15bda425 JL |
2706 | } |
2707 | ||
22b05d33 | 2708 | for (m = elf_seg_map (abfd) ; m != NULL; m = m->next) |
15bda425 JL |
2709 | if (m->p_type == PT_LOAD) |
2710 | { | |
0ba2a60e | 2711 | unsigned int i; |
15bda425 JL |
2712 | |
2713 | for (i = 0; i < m->count; i++) | |
2714 | { | |
2715 | /* The code "hint" is not really a hint. It is a requirement | |
2716 | for certain versions of the HP dynamic linker. Worse yet, | |
2717 | it must be set even if the shared library does not have | |
2718 | any code in its "text" segment (thus the check for .hash | |
2719 | to catch this situation). */ | |
2720 | if (m->sections[i]->flags & SEC_CODE | |
2721 | || (strcmp (m->sections[i]->name, ".hash") == 0)) | |
2722 | m->p_flags |= (PF_X | PF_HP_CODE); | |
2723 | } | |
2724 | } | |
2725 | ||
b34976b6 | 2726 | return TRUE; |
15bda425 JL |
2727 | } |
2728 | ||
3fab46d0 AM |
2729 | /* Called when writing out an object file to decide the type of a |
2730 | symbol. */ | |
2731 | static int | |
813c8a3c DA |
2732 | elf64_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, |
2733 | int type) | |
3fab46d0 AM |
2734 | { |
2735 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
2736 | return STT_PARISC_MILLI; | |
2737 | else | |
2738 | return type; | |
2739 | } | |
2740 | ||
d97a8924 | 2741 | /* Support HP specific sections for core files. */ |
91d6fa6a | 2742 | |
d97a8924 | 2743 | static bfd_boolean |
91d6fa6a | 2744 | elf64_hppa_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int sec_index, |
d97a8924 DA |
2745 | const char *typename) |
2746 | { | |
927e625f MK |
2747 | if (hdr->p_type == PT_HP_CORE_KERNEL) |
2748 | { | |
2749 | asection *sect; | |
2750 | ||
91d6fa6a | 2751 | if (!_bfd_elf_make_section_from_phdr (abfd, hdr, sec_index, typename)) |
927e625f MK |
2752 | return FALSE; |
2753 | ||
2754 | sect = bfd_make_section_anyway (abfd, ".kernel"); | |
2755 | if (sect == NULL) | |
2756 | return FALSE; | |
2757 | sect->size = hdr->p_filesz; | |
2758 | sect->filepos = hdr->p_offset; | |
2759 | sect->flags = SEC_HAS_CONTENTS | SEC_READONLY; | |
2760 | return TRUE; | |
2761 | } | |
2762 | ||
d97a8924 DA |
2763 | if (hdr->p_type == PT_HP_CORE_PROC) |
2764 | { | |
2765 | int sig; | |
2766 | ||
2767 | if (bfd_seek (abfd, hdr->p_offset, SEEK_SET) != 0) | |
2768 | return FALSE; | |
2769 | if (bfd_bread (&sig, 4, abfd) != 4) | |
2770 | return FALSE; | |
2771 | ||
228e534f | 2772 | elf_tdata (abfd)->core->signal = sig; |
d97a8924 | 2773 | |
91d6fa6a | 2774 | if (!_bfd_elf_make_section_from_phdr (abfd, hdr, sec_index, typename)) |
d97a8924 | 2775 | return FALSE; |
927e625f MK |
2776 | |
2777 | /* GDB uses the ".reg" section to read register contents. */ | |
2778 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", hdr->p_filesz, | |
2779 | hdr->p_offset); | |
d97a8924 DA |
2780 | } |
2781 | ||
2782 | if (hdr->p_type == PT_HP_CORE_LOADABLE | |
2783 | || hdr->p_type == PT_HP_CORE_STACK | |
2784 | || hdr->p_type == PT_HP_CORE_MMF) | |
2785 | hdr->p_type = PT_LOAD; | |
2786 | ||
91d6fa6a | 2787 | return _bfd_elf_make_section_from_phdr (abfd, hdr, sec_index, typename); |
d97a8924 DA |
2788 | } |
2789 | ||
5887528b DA |
2790 | /* Hook called by the linker routine which adds symbols from an object |
2791 | file. HP's libraries define symbols with HP specific section | |
2792 | indices, which we have to handle. */ | |
2793 | ||
2794 | static bfd_boolean | |
2795 | elf_hppa_add_symbol_hook (bfd *abfd, | |
2796 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
2797 | Elf_Internal_Sym *sym, | |
2798 | const char **namep ATTRIBUTE_UNUSED, | |
2799 | flagword *flagsp ATTRIBUTE_UNUSED, | |
2800 | asection **secp, | |
2801 | bfd_vma *valp) | |
2802 | { | |
91d6fa6a | 2803 | unsigned int sec_index = sym->st_shndx; |
5887528b | 2804 | |
91d6fa6a | 2805 | switch (sec_index) |
5887528b DA |
2806 | { |
2807 | case SHN_PARISC_ANSI_COMMON: | |
2808 | *secp = bfd_make_section_old_way (abfd, ".PARISC.ansi.common"); | |
2809 | (*secp)->flags |= SEC_IS_COMMON; | |
2810 | *valp = sym->st_size; | |
2811 | break; | |
2812 | ||
2813 | case SHN_PARISC_HUGE_COMMON: | |
2814 | *secp = bfd_make_section_old_way (abfd, ".PARISC.huge.common"); | |
2815 | (*secp)->flags |= SEC_IS_COMMON; | |
2816 | *valp = sym->st_size; | |
2817 | break; | |
2818 | } | |
2819 | ||
2820 | return TRUE; | |
2821 | } | |
2822 | ||
2823 | static bfd_boolean | |
2824 | elf_hppa_unmark_useless_dynamic_symbols (struct elf_link_hash_entry *h, | |
2825 | void *data) | |
2826 | { | |
2827 | struct bfd_link_info *info = data; | |
2828 | ||
5887528b DA |
2829 | /* If we are not creating a shared library, and this symbol is |
2830 | referenced by a shared library but is not defined anywhere, then | |
2831 | the generic code will warn that it is undefined. | |
2832 | ||
2833 | This behavior is undesirable on HPs since the standard shared | |
2834 | libraries contain references to undefined symbols. | |
2835 | ||
2836 | So we twiddle the flags associated with such symbols so that they | |
2837 | will not trigger the warning. ?!? FIXME. This is horribly fragile. | |
2838 | ||
2839 | Ultimately we should have better controls over the generic ELF BFD | |
2840 | linker code. */ | |
0e1862bb | 2841 | if (! bfd_link_relocatable (info) |
5887528b DA |
2842 | && info->unresolved_syms_in_shared_libs != RM_IGNORE |
2843 | && h->root.type == bfd_link_hash_undefined | |
2844 | && h->ref_dynamic | |
2845 | && !h->ref_regular) | |
2846 | { | |
2847 | h->ref_dynamic = 0; | |
2848 | h->pointer_equality_needed = 1; | |
2849 | } | |
2850 | ||
2851 | return TRUE; | |
2852 | } | |
2853 | ||
2854 | static bfd_boolean | |
2855 | elf_hppa_remark_useless_dynamic_symbols (struct elf_link_hash_entry *h, | |
2856 | void *data) | |
2857 | { | |
2858 | struct bfd_link_info *info = data; | |
2859 | ||
5887528b DA |
2860 | /* If we are not creating a shared library, and this symbol is |
2861 | referenced by a shared library but is not defined anywhere, then | |
2862 | the generic code will warn that it is undefined. | |
2863 | ||
2864 | This behavior is undesirable on HPs since the standard shared | |
2865 | libraries contain references to undefined symbols. | |
2866 | ||
2867 | So we twiddle the flags associated with such symbols so that they | |
2868 | will not trigger the warning. ?!? FIXME. This is horribly fragile. | |
2869 | ||
2870 | Ultimately we should have better controls over the generic ELF BFD | |
2871 | linker code. */ | |
0e1862bb | 2872 | if (! bfd_link_relocatable (info) |
5887528b DA |
2873 | && info->unresolved_syms_in_shared_libs != RM_IGNORE |
2874 | && h->root.type == bfd_link_hash_undefined | |
2875 | && !h->ref_dynamic | |
2876 | && !h->ref_regular | |
2877 | && h->pointer_equality_needed) | |
2878 | { | |
2879 | h->ref_dynamic = 1; | |
2880 | h->pointer_equality_needed = 0; | |
2881 | } | |
2882 | ||
2883 | return TRUE; | |
2884 | } | |
2885 | ||
2886 | static bfd_boolean | |
2887 | elf_hppa_is_dynamic_loader_symbol (const char *name) | |
2888 | { | |
2889 | return (! strcmp (name, "__CPU_REVISION") | |
2890 | || ! strcmp (name, "__CPU_KEYBITS_1") | |
2891 | || ! strcmp (name, "__SYSTEM_ID_D") | |
2892 | || ! strcmp (name, "__FPU_MODEL") | |
2893 | || ! strcmp (name, "__FPU_REVISION") | |
2894 | || ! strcmp (name, "__ARGC") | |
2895 | || ! strcmp (name, "__ARGV") | |
2896 | || ! strcmp (name, "__ENVP") | |
2897 | || ! strcmp (name, "__TLS_SIZE_D") | |
2898 | || ! strcmp (name, "__LOAD_INFO") | |
2899 | || ! strcmp (name, "__systab")); | |
2900 | } | |
2901 | ||
2902 | /* Record the lowest address for the data and text segments. */ | |
2903 | static void | |
2904 | elf_hppa_record_segment_addrs (bfd *abfd, | |
2905 | asection *section, | |
2906 | void *data) | |
2907 | { | |
2908 | struct elf64_hppa_link_hash_table *hppa_info = data; | |
2909 | ||
2910 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
2911 | { | |
2912 | bfd_vma value; | |
2913 | Elf_Internal_Phdr *p; | |
2914 | ||
2915 | p = _bfd_elf_find_segment_containing_section (abfd, section->output_section); | |
2916 | BFD_ASSERT (p != NULL); | |
2917 | value = p->p_vaddr; | |
2918 | ||
2919 | if (section->flags & SEC_READONLY) | |
2920 | { | |
2921 | if (value < hppa_info->text_segment_base) | |
2922 | hppa_info->text_segment_base = value; | |
2923 | } | |
2924 | else | |
2925 | { | |
2926 | if (value < hppa_info->data_segment_base) | |
2927 | hppa_info->data_segment_base = value; | |
2928 | } | |
2929 | } | |
2930 | } | |
2931 | ||
2932 | /* Called after we have seen all the input files/sections, but before | |
2933 | final symbol resolution and section placement has been determined. | |
2934 | ||
2935 | We use this hook to (possibly) provide a value for __gp, then we | |
2936 | fall back to the generic ELF final link routine. */ | |
2937 | ||
2938 | static bfd_boolean | |
2939 | elf_hppa_final_link (bfd *abfd, struct bfd_link_info *info) | |
2940 | { | |
6d4b2867 | 2941 | struct stat buf; |
5887528b DA |
2942 | struct elf64_hppa_link_hash_table *hppa_info = hppa_link_hash_table (info); |
2943 | ||
4dfe6ac6 NC |
2944 | if (hppa_info == NULL) |
2945 | return FALSE; | |
2946 | ||
0e1862bb | 2947 | if (! bfd_link_relocatable (info)) |
5887528b DA |
2948 | { |
2949 | struct elf_link_hash_entry *gp; | |
2950 | bfd_vma gp_val; | |
2951 | ||
2952 | /* The linker script defines a value for __gp iff it was referenced | |
2953 | by one of the objects being linked. First try to find the symbol | |
2954 | in the hash table. If that fails, just compute the value __gp | |
2955 | should have had. */ | |
2956 | gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE, | |
2957 | FALSE, FALSE); | |
2958 | ||
2959 | if (gp) | |
2960 | { | |
2961 | ||
2962 | /* Adjust the value of __gp as we may want to slide it into the | |
2963 | .plt section so that the stubs can access PLT entries without | |
2964 | using an addil sequence. */ | |
2965 | gp->root.u.def.value += hppa_info->gp_offset; | |
2966 | ||
2967 | gp_val = (gp->root.u.def.section->output_section->vma | |
2968 | + gp->root.u.def.section->output_offset | |
2969 | + gp->root.u.def.value); | |
2970 | } | |
2971 | else | |
2972 | { | |
2973 | asection *sec; | |
2974 | ||
2975 | /* First look for a .plt section. If found, then __gp is the | |
2976 | address of the .plt + gp_offset. | |
2977 | ||
2978 | If no .plt is found, then look for .dlt, .opd and .data (in | |
2979 | that order) and set __gp to the base address of whichever | |
2980 | section is found first. */ | |
2981 | ||
9b8a8575 | 2982 | sec = hppa_info->root.splt; |
5887528b DA |
2983 | if (sec && ! (sec->flags & SEC_EXCLUDE)) |
2984 | gp_val = (sec->output_offset | |
2985 | + sec->output_section->vma | |
2986 | + hppa_info->gp_offset); | |
2987 | else | |
2988 | { | |
2989 | sec = hppa_info->dlt_sec; | |
2990 | if (!sec || (sec->flags & SEC_EXCLUDE)) | |
2991 | sec = hppa_info->opd_sec; | |
2992 | if (!sec || (sec->flags & SEC_EXCLUDE)) | |
2993 | sec = bfd_get_section_by_name (abfd, ".data"); | |
2994 | if (!sec || (sec->flags & SEC_EXCLUDE)) | |
2995 | gp_val = 0; | |
2996 | else | |
2997 | gp_val = sec->output_offset + sec->output_section->vma; | |
2998 | } | |
2999 | } | |
3000 | ||
3001 | /* Install whatever value we found/computed for __gp. */ | |
3002 | _bfd_set_gp_value (abfd, gp_val); | |
3003 | } | |
3004 | ||
3005 | /* We need to know the base of the text and data segments so that we | |
3006 | can perform SEGREL relocations. We will record the base addresses | |
3007 | when we encounter the first SEGREL relocation. */ | |
3008 | hppa_info->text_segment_base = (bfd_vma)-1; | |
3009 | hppa_info->data_segment_base = (bfd_vma)-1; | |
3010 | ||
3011 | /* HP's shared libraries have references to symbols that are not | |
3012 | defined anywhere. The generic ELF BFD linker code will complain | |
3013 | about such symbols. | |
3014 | ||
3015 | So we detect the losing case and arrange for the flags on the symbol | |
3016 | to indicate that it was never referenced. This keeps the generic | |
3017 | ELF BFD link code happy and appears to not create any secondary | |
3018 | problems. Ultimately we need a way to control the behavior of the | |
3019 | generic ELF BFD link code better. */ | |
3020 | elf_link_hash_traverse (elf_hash_table (info), | |
3021 | elf_hppa_unmark_useless_dynamic_symbols, | |
3022 | info); | |
3023 | ||
3024 | /* Invoke the regular ELF backend linker to do all the work. */ | |
6d4b2867 JDA |
3025 | if (!bfd_elf_final_link (abfd, info)) |
3026 | return FALSE; | |
5887528b DA |
3027 | |
3028 | elf_link_hash_traverse (elf_hash_table (info), | |
3029 | elf_hppa_remark_useless_dynamic_symbols, | |
3030 | info); | |
3031 | ||
3032 | /* If we're producing a final executable, sort the contents of the | |
3033 | unwind section. */ | |
6d4b2867 JDA |
3034 | if (bfd_link_relocatable (info)) |
3035 | return TRUE; | |
3036 | ||
3037 | /* Do not attempt to sort non-regular files. This is here | |
3038 | especially for configure scripts and kernel builds which run | |
3039 | tests with "ld [...] -o /dev/null". */ | |
765cf5f6 | 3040 | if (stat (bfd_get_filename (abfd), &buf) != 0 |
6d4b2867 JDA |
3041 | || !S_ISREG(buf.st_mode)) |
3042 | return TRUE; | |
5887528b | 3043 | |
6d4b2867 | 3044 | return elf_hppa_sort_unwind (abfd); |
5887528b DA |
3045 | } |
3046 | ||
3047 | /* Relocate the given INSN. VALUE should be the actual value we want | |
3048 | to insert into the instruction, ie by this point we should not be | |
3049 | concerned with computing an offset relative to the DLT, PC, etc. | |
3050 | Instead this routine is meant to handle the bit manipulations needed | |
3051 | to insert the relocation into the given instruction. */ | |
3052 | ||
3053 | static int | |
3054 | elf_hppa_relocate_insn (int insn, int sym_value, unsigned int r_type) | |
3055 | { | |
3056 | switch (r_type) | |
3057 | { | |
3058 | /* This is any 22 bit branch. In PA2.0 syntax it corresponds to | |
3059 | the "B" instruction. */ | |
3060 | case R_PARISC_PCREL22F: | |
3061 | case R_PARISC_PCREL22C: | |
3062 | return (insn & ~0x3ff1ffd) | re_assemble_22 (sym_value); | |
3063 | ||
3064 | /* This is any 12 bit branch. */ | |
3065 | case R_PARISC_PCREL12F: | |
3066 | return (insn & ~0x1ffd) | re_assemble_12 (sym_value); | |
3067 | ||
3068 | /* This is any 17 bit branch. In PA2.0 syntax it also corresponds | |
3069 | to the "B" instruction as well as BE. */ | |
3070 | case R_PARISC_PCREL17F: | |
3071 | case R_PARISC_DIR17F: | |
3072 | case R_PARISC_DIR17R: | |
3073 | case R_PARISC_PCREL17C: | |
3074 | case R_PARISC_PCREL17R: | |
3075 | return (insn & ~0x1f1ffd) | re_assemble_17 (sym_value); | |
3076 | ||
3077 | /* ADDIL or LDIL instructions. */ | |
3078 | case R_PARISC_DLTREL21L: | |
3079 | case R_PARISC_DLTIND21L: | |
3080 | case R_PARISC_LTOFF_FPTR21L: | |
3081 | case R_PARISC_PCREL21L: | |
3082 | case R_PARISC_LTOFF_TP21L: | |
3083 | case R_PARISC_DPREL21L: | |
3084 | case R_PARISC_PLTOFF21L: | |
3085 | case R_PARISC_DIR21L: | |
3086 | return (insn & ~0x1fffff) | re_assemble_21 (sym_value); | |
3087 | ||
3088 | /* LDO and integer loads/stores with 14 bit displacements. */ | |
3089 | case R_PARISC_DLTREL14R: | |
3090 | case R_PARISC_DLTREL14F: | |
3091 | case R_PARISC_DLTIND14R: | |
3092 | case R_PARISC_DLTIND14F: | |
3093 | case R_PARISC_LTOFF_FPTR14R: | |
3094 | case R_PARISC_PCREL14R: | |
3095 | case R_PARISC_PCREL14F: | |
3096 | case R_PARISC_LTOFF_TP14R: | |
3097 | case R_PARISC_LTOFF_TP14F: | |
3098 | case R_PARISC_DPREL14R: | |
3099 | case R_PARISC_DPREL14F: | |
3100 | case R_PARISC_PLTOFF14R: | |
3101 | case R_PARISC_PLTOFF14F: | |
3102 | case R_PARISC_DIR14R: | |
3103 | case R_PARISC_DIR14F: | |
3104 | return (insn & ~0x3fff) | low_sign_unext (sym_value, 14); | |
3105 | ||
3106 | /* PA2.0W LDO and integer loads/stores with 16 bit displacements. */ | |
3107 | case R_PARISC_LTOFF_FPTR16F: | |
3108 | case R_PARISC_PCREL16F: | |
3109 | case R_PARISC_LTOFF_TP16F: | |
3110 | case R_PARISC_GPREL16F: | |
3111 | case R_PARISC_PLTOFF16F: | |
3112 | case R_PARISC_DIR16F: | |
3113 | case R_PARISC_LTOFF16F: | |
3114 | return (insn & ~0xffff) | re_assemble_16 (sym_value); | |
3115 | ||
3116 | /* Doubleword loads and stores with a 14 bit displacement. */ | |
3117 | case R_PARISC_DLTREL14DR: | |
3118 | case R_PARISC_DLTIND14DR: | |
3119 | case R_PARISC_LTOFF_FPTR14DR: | |
3120 | case R_PARISC_LTOFF_FPTR16DF: | |
3121 | case R_PARISC_PCREL14DR: | |
3122 | case R_PARISC_PCREL16DF: | |
3123 | case R_PARISC_LTOFF_TP14DR: | |
3124 | case R_PARISC_LTOFF_TP16DF: | |
3125 | case R_PARISC_DPREL14DR: | |
3126 | case R_PARISC_GPREL16DF: | |
3127 | case R_PARISC_PLTOFF14DR: | |
3128 | case R_PARISC_PLTOFF16DF: | |
3129 | case R_PARISC_DIR14DR: | |
3130 | case R_PARISC_DIR16DF: | |
3131 | case R_PARISC_LTOFF16DF: | |
3132 | return (insn & ~0x3ff1) | (((sym_value & 0x2000) >> 13) | |
3133 | | ((sym_value & 0x1ff8) << 1)); | |
3134 | ||
3135 | /* Floating point single word load/store instructions. */ | |
3136 | case R_PARISC_DLTREL14WR: | |
3137 | case R_PARISC_DLTIND14WR: | |
3138 | case R_PARISC_LTOFF_FPTR14WR: | |
3139 | case R_PARISC_LTOFF_FPTR16WF: | |
3140 | case R_PARISC_PCREL14WR: | |
3141 | case R_PARISC_PCREL16WF: | |
3142 | case R_PARISC_LTOFF_TP14WR: | |
3143 | case R_PARISC_LTOFF_TP16WF: | |
3144 | case R_PARISC_DPREL14WR: | |
3145 | case R_PARISC_GPREL16WF: | |
3146 | case R_PARISC_PLTOFF14WR: | |
3147 | case R_PARISC_PLTOFF16WF: | |
3148 | case R_PARISC_DIR16WF: | |
3149 | case R_PARISC_DIR14WR: | |
3150 | case R_PARISC_LTOFF16WF: | |
3151 | return (insn & ~0x3ff9) | (((sym_value & 0x2000) >> 13) | |
3152 | | ((sym_value & 0x1ffc) << 1)); | |
3153 | ||
3154 | default: | |
3155 | return insn; | |
3156 | } | |
3157 | } | |
3158 | ||
3159 | /* Compute the value for a relocation (REL) during a final link stage, | |
3160 | then insert the value into the proper location in CONTENTS. | |
3161 | ||
3162 | VALUE is a tentative value for the relocation and may be overridden | |
3163 | and modified here based on the specific relocation to be performed. | |
3164 | ||
3165 | For example we do conversions for PC-relative branches in this routine | |
3166 | or redirection of calls to external routines to stubs. | |
3167 | ||
3168 | The work of actually applying the relocation is left to a helper | |
3169 | routine in an attempt to reduce the complexity and size of this | |
3170 | function. */ | |
3171 | ||
3172 | static bfd_reloc_status_type | |
3173 | elf_hppa_final_link_relocate (Elf_Internal_Rela *rel, | |
3174 | bfd *input_bfd, | |
3175 | bfd *output_bfd, | |
3176 | asection *input_section, | |
3177 | bfd_byte *contents, | |
3178 | bfd_vma value, | |
3179 | struct bfd_link_info *info, | |
3180 | asection *sym_sec, | |
3181 | struct elf_link_hash_entry *eh) | |
3182 | { | |
3183 | struct elf64_hppa_link_hash_table *hppa_info = hppa_link_hash_table (info); | |
3184 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); | |
3185 | bfd_vma *local_offsets; | |
3186 | Elf_Internal_Shdr *symtab_hdr; | |
3187 | int insn; | |
3188 | bfd_vma max_branch_offset = 0; | |
3189 | bfd_vma offset = rel->r_offset; | |
3190 | bfd_signed_vma addend = rel->r_addend; | |
3191 | reloc_howto_type *howto = elf_hppa_howto_table + ELF_R_TYPE (rel->r_info); | |
3192 | unsigned int r_symndx = ELF_R_SYM (rel->r_info); | |
3193 | unsigned int r_type = howto->type; | |
3194 | bfd_byte *hit_data = contents + offset; | |
3195 | ||
4dfe6ac6 NC |
3196 | if (hppa_info == NULL) |
3197 | return bfd_reloc_notsupported; | |
68ffbac6 | 3198 | |
5887528b DA |
3199 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
3200 | local_offsets = elf_local_got_offsets (input_bfd); | |
3201 | insn = bfd_get_32 (input_bfd, hit_data); | |
3202 | ||
3203 | switch (r_type) | |
3204 | { | |
3205 | case R_PARISC_NONE: | |
3206 | break; | |
3207 | ||
3208 | /* Basic function call support. | |
3209 | ||
3210 | Note for a call to a function defined in another dynamic library | |
3211 | we want to redirect the call to a stub. */ | |
3212 | ||
3213 | /* PC relative relocs without an implicit offset. */ | |
3214 | case R_PARISC_PCREL21L: | |
3215 | case R_PARISC_PCREL14R: | |
3216 | case R_PARISC_PCREL14F: | |
3217 | case R_PARISC_PCREL14WR: | |
3218 | case R_PARISC_PCREL14DR: | |
3219 | case R_PARISC_PCREL16F: | |
3220 | case R_PARISC_PCREL16WF: | |
3221 | case R_PARISC_PCREL16DF: | |
3222 | { | |
3223 | /* If this is a call to a function defined in another dynamic | |
3224 | library, then redirect the call to the local stub for this | |
3225 | function. */ | |
3226 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3227 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3228 | + hppa_info->stub_sec->output_section->vma); | |
3229 | ||
3230 | /* Turn VALUE into a proper PC relative address. */ | |
3231 | value -= (offset + input_section->output_offset | |
3232 | + input_section->output_section->vma); | |
3233 | ||
3234 | /* Adjust for any field selectors. */ | |
3235 | if (r_type == R_PARISC_PCREL21L) | |
3236 | value = hppa_field_adjust (value, -8 + addend, e_lsel); | |
3237 | else if (r_type == R_PARISC_PCREL14F | |
3238 | || r_type == R_PARISC_PCREL16F | |
3239 | || r_type == R_PARISC_PCREL16WF | |
3240 | || r_type == R_PARISC_PCREL16DF) | |
3241 | value = hppa_field_adjust (value, -8 + addend, e_fsel); | |
3242 | else | |
3243 | value = hppa_field_adjust (value, -8 + addend, e_rsel); | |
3244 | ||
3245 | /* Apply the relocation to the given instruction. */ | |
3246 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3247 | break; | |
3248 | } | |
3249 | ||
3250 | case R_PARISC_PCREL12F: | |
3251 | case R_PARISC_PCREL22F: | |
3252 | case R_PARISC_PCREL17F: | |
3253 | case R_PARISC_PCREL22C: | |
3254 | case R_PARISC_PCREL17C: | |
3255 | case R_PARISC_PCREL17R: | |
3256 | { | |
3257 | /* If this is a call to a function defined in another dynamic | |
3258 | library, then redirect the call to the local stub for this | |
3259 | function. */ | |
3260 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3261 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3262 | + hppa_info->stub_sec->output_section->vma); | |
3263 | ||
3264 | /* Turn VALUE into a proper PC relative address. */ | |
3265 | value -= (offset + input_section->output_offset | |
3266 | + input_section->output_section->vma); | |
3267 | addend -= 8; | |
3268 | ||
3269 | if (r_type == (unsigned int) R_PARISC_PCREL22F) | |
3270 | max_branch_offset = (1 << (22-1)) << 2; | |
3271 | else if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3272 | max_branch_offset = (1 << (17-1)) << 2; | |
3273 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3274 | max_branch_offset = (1 << (12-1)) << 2; | |
3275 | ||
3276 | /* Make sure we can reach the branch target. */ | |
3277 | if (max_branch_offset != 0 | |
3278 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3279 | { | |
4eca0228 | 3280 | _bfd_error_handler |
695344c0 | 3281 | /* xgettext:c-format */ |
2dcf00ce | 3282 | (_("%pB(%pA+%#" PRIx64 "): cannot reach %s"), |
5887528b DA |
3283 | input_bfd, |
3284 | input_section, | |
2dcf00ce | 3285 | (uint64_t) offset, |
d91a6875 | 3286 | eh ? eh->root.root.string : "unknown"); |
5887528b | 3287 | bfd_set_error (bfd_error_bad_value); |
d91a6875 | 3288 | return bfd_reloc_overflow; |
5887528b DA |
3289 | } |
3290 | ||
3291 | /* Adjust for any field selectors. */ | |
3292 | if (r_type == R_PARISC_PCREL17R) | |
3293 | value = hppa_field_adjust (value, addend, e_rsel); | |
3294 | else | |
3295 | value = hppa_field_adjust (value, addend, e_fsel); | |
3296 | ||
3297 | /* All branches are implicitly shifted by 2 places. */ | |
3298 | value >>= 2; | |
3299 | ||
3300 | /* Apply the relocation to the given instruction. */ | |
3301 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3302 | break; | |
3303 | } | |
3304 | ||
3305 | /* Indirect references to data through the DLT. */ | |
3306 | case R_PARISC_DLTIND14R: | |
3307 | case R_PARISC_DLTIND14F: | |
3308 | case R_PARISC_DLTIND14DR: | |
3309 | case R_PARISC_DLTIND14WR: | |
3310 | case R_PARISC_DLTIND21L: | |
3311 | case R_PARISC_LTOFF_FPTR14R: | |
3312 | case R_PARISC_LTOFF_FPTR14DR: | |
3313 | case R_PARISC_LTOFF_FPTR14WR: | |
3314 | case R_PARISC_LTOFF_FPTR21L: | |
3315 | case R_PARISC_LTOFF_FPTR16F: | |
3316 | case R_PARISC_LTOFF_FPTR16WF: | |
3317 | case R_PARISC_LTOFF_FPTR16DF: | |
3318 | case R_PARISC_LTOFF_TP21L: | |
3319 | case R_PARISC_LTOFF_TP14R: | |
3320 | case R_PARISC_LTOFF_TP14F: | |
3321 | case R_PARISC_LTOFF_TP14WR: | |
3322 | case R_PARISC_LTOFF_TP14DR: | |
3323 | case R_PARISC_LTOFF_TP16F: | |
3324 | case R_PARISC_LTOFF_TP16WF: | |
3325 | case R_PARISC_LTOFF_TP16DF: | |
3326 | case R_PARISC_LTOFF16F: | |
3327 | case R_PARISC_LTOFF16WF: | |
3328 | case R_PARISC_LTOFF16DF: | |
3329 | { | |
3330 | bfd_vma off; | |
3331 | ||
3332 | /* If this relocation was against a local symbol, then we still | |
3333 | have not set up the DLT entry (it's not convenient to do so | |
3334 | in the "finalize_dlt" routine because it is difficult to get | |
3335 | to the local symbol's value). | |
3336 | ||
3337 | So, if this is a local symbol (h == NULL), then we need to | |
3338 | fill in its DLT entry. | |
3339 | ||
3340 | Similarly we may still need to set up an entry in .opd for | |
3341 | a local function which had its address taken. */ | |
3342 | if (hh == NULL) | |
3343 | { | |
3344 | bfd_vma *local_opd_offsets, *local_dlt_offsets; | |
3345 | ||
07d6d2b8 AM |
3346 | if (local_offsets == NULL) |
3347 | abort (); | |
5887528b DA |
3348 | |
3349 | /* Now do .opd creation if needed. */ | |
3350 | if (r_type == R_PARISC_LTOFF_FPTR14R | |
3351 | || r_type == R_PARISC_LTOFF_FPTR14DR | |
3352 | || r_type == R_PARISC_LTOFF_FPTR14WR | |
3353 | || r_type == R_PARISC_LTOFF_FPTR21L | |
3354 | || r_type == R_PARISC_LTOFF_FPTR16F | |
3355 | || r_type == R_PARISC_LTOFF_FPTR16WF | |
3356 | || r_type == R_PARISC_LTOFF_FPTR16DF) | |
3357 | { | |
3358 | local_opd_offsets = local_offsets + 2 * symtab_hdr->sh_info; | |
3359 | off = local_opd_offsets[r_symndx]; | |
3360 | ||
3361 | /* The last bit records whether we've already initialised | |
3362 | this local .opd entry. */ | |
3363 | if ((off & 1) != 0) | |
3364 | { | |
3365 | BFD_ASSERT (off != (bfd_vma) -1); | |
3366 | off &= ~1; | |
3367 | } | |
3368 | else | |
3369 | { | |
3370 | local_opd_offsets[r_symndx] |= 1; | |
3371 | ||
3372 | /* The first two words of an .opd entry are zero. */ | |
3373 | memset (hppa_info->opd_sec->contents + off, 0, 16); | |
3374 | ||
3375 | /* The next word is the address of the function. */ | |
3376 | bfd_put_64 (hppa_info->opd_sec->owner, value + addend, | |
3377 | (hppa_info->opd_sec->contents + off + 16)); | |
3378 | ||
3379 | /* The last word is our local __gp value. */ | |
586338b8 | 3380 | value = _bfd_get_gp_value (info->output_bfd); |
5887528b DA |
3381 | bfd_put_64 (hppa_info->opd_sec->owner, value, |
3382 | (hppa_info->opd_sec->contents + off + 24)); | |
3383 | } | |
3384 | ||
3385 | /* The DLT value is the address of the .opd entry. */ | |
3386 | value = (off | |
3387 | + hppa_info->opd_sec->output_offset | |
3388 | + hppa_info->opd_sec->output_section->vma); | |
3389 | addend = 0; | |
3390 | } | |
3391 | ||
3392 | local_dlt_offsets = local_offsets; | |
3393 | off = local_dlt_offsets[r_symndx]; | |
3394 | ||
3395 | if ((off & 1) != 0) | |
3396 | { | |
3397 | BFD_ASSERT (off != (bfd_vma) -1); | |
3398 | off &= ~1; | |
3399 | } | |
3400 | else | |
3401 | { | |
3402 | local_dlt_offsets[r_symndx] |= 1; | |
3403 | bfd_put_64 (hppa_info->dlt_sec->owner, | |
3404 | value + addend, | |
3405 | hppa_info->dlt_sec->contents + off); | |
3406 | } | |
3407 | } | |
3408 | else | |
3409 | off = hh->dlt_offset; | |
3410 | ||
3411 | /* We want the value of the DLT offset for this symbol, not | |
3412 | the symbol's actual address. Note that __gp may not point | |
3413 | to the start of the DLT, so we have to compute the absolute | |
3414 | address, then subtract out the value of __gp. */ | |
3415 | value = (off | |
3416 | + hppa_info->dlt_sec->output_offset | |
3417 | + hppa_info->dlt_sec->output_section->vma); | |
3418 | value -= _bfd_get_gp_value (output_bfd); | |
3419 | ||
3420 | /* All DLTIND relocations are basically the same at this point, | |
3421 | except that we need different field selectors for the 21bit | |
3422 | version vs the 14bit versions. */ | |
3423 | if (r_type == R_PARISC_DLTIND21L | |
3424 | || r_type == R_PARISC_LTOFF_FPTR21L | |
3425 | || r_type == R_PARISC_LTOFF_TP21L) | |
3426 | value = hppa_field_adjust (value, 0, e_lsel); | |
3427 | else if (r_type == R_PARISC_DLTIND14F | |
3428 | || r_type == R_PARISC_LTOFF_FPTR16F | |
3429 | || r_type == R_PARISC_LTOFF_FPTR16WF | |
3430 | || r_type == R_PARISC_LTOFF_FPTR16DF | |
3431 | || r_type == R_PARISC_LTOFF16F | |
3432 | || r_type == R_PARISC_LTOFF16DF | |
3433 | || r_type == R_PARISC_LTOFF16WF | |
3434 | || r_type == R_PARISC_LTOFF_TP16F | |
3435 | || r_type == R_PARISC_LTOFF_TP16WF | |
3436 | || r_type == R_PARISC_LTOFF_TP16DF) | |
3437 | value = hppa_field_adjust (value, 0, e_fsel); | |
3438 | else | |
3439 | value = hppa_field_adjust (value, 0, e_rsel); | |
3440 | ||
3441 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3442 | break; | |
3443 | } | |
3444 | ||
3445 | case R_PARISC_DLTREL14R: | |
3446 | case R_PARISC_DLTREL14F: | |
3447 | case R_PARISC_DLTREL14DR: | |
3448 | case R_PARISC_DLTREL14WR: | |
3449 | case R_PARISC_DLTREL21L: | |
3450 | case R_PARISC_DPREL21L: | |
3451 | case R_PARISC_DPREL14WR: | |
3452 | case R_PARISC_DPREL14DR: | |
3453 | case R_PARISC_DPREL14R: | |
3454 | case R_PARISC_DPREL14F: | |
3455 | case R_PARISC_GPREL16F: | |
3456 | case R_PARISC_GPREL16WF: | |
3457 | case R_PARISC_GPREL16DF: | |
3458 | { | |
3459 | /* Subtract out the global pointer value to make value a DLT | |
3460 | relative address. */ | |
3461 | value -= _bfd_get_gp_value (output_bfd); | |
3462 | ||
3463 | /* All DLTREL relocations are basically the same at this point, | |
3464 | except that we need different field selectors for the 21bit | |
3465 | version vs the 14bit versions. */ | |
3466 | if (r_type == R_PARISC_DLTREL21L | |
3467 | || r_type == R_PARISC_DPREL21L) | |
3468 | value = hppa_field_adjust (value, addend, e_lrsel); | |
3469 | else if (r_type == R_PARISC_DLTREL14F | |
3470 | || r_type == R_PARISC_DPREL14F | |
3471 | || r_type == R_PARISC_GPREL16F | |
3472 | || r_type == R_PARISC_GPREL16WF | |
3473 | || r_type == R_PARISC_GPREL16DF) | |
3474 | value = hppa_field_adjust (value, addend, e_fsel); | |
3475 | else | |
3476 | value = hppa_field_adjust (value, addend, e_rrsel); | |
3477 | ||
3478 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3479 | break; | |
3480 | } | |
3481 | ||
3482 | case R_PARISC_DIR21L: | |
3483 | case R_PARISC_DIR17R: | |
3484 | case R_PARISC_DIR17F: | |
3485 | case R_PARISC_DIR14R: | |
3486 | case R_PARISC_DIR14F: | |
3487 | case R_PARISC_DIR14WR: | |
3488 | case R_PARISC_DIR14DR: | |
3489 | case R_PARISC_DIR16F: | |
3490 | case R_PARISC_DIR16WF: | |
3491 | case R_PARISC_DIR16DF: | |
3492 | { | |
3493 | /* All DIR relocations are basically the same at this point, | |
3494 | except that branch offsets need to be divided by four, and | |
3495 | we need different field selectors. Note that we don't | |
3496 | redirect absolute calls to local stubs. */ | |
3497 | ||
3498 | if (r_type == R_PARISC_DIR21L) | |
3499 | value = hppa_field_adjust (value, addend, e_lrsel); | |
3500 | else if (r_type == R_PARISC_DIR17F | |
3501 | || r_type == R_PARISC_DIR16F | |
3502 | || r_type == R_PARISC_DIR16WF | |
3503 | || r_type == R_PARISC_DIR16DF | |
3504 | || r_type == R_PARISC_DIR14F) | |
3505 | value = hppa_field_adjust (value, addend, e_fsel); | |
3506 | else | |
3507 | value = hppa_field_adjust (value, addend, e_rrsel); | |
3508 | ||
3509 | if (r_type == R_PARISC_DIR17R || r_type == R_PARISC_DIR17F) | |
3510 | /* All branches are implicitly shifted by 2 places. */ | |
3511 | value >>= 2; | |
3512 | ||
3513 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3514 | break; | |
3515 | } | |
3516 | ||
3517 | case R_PARISC_PLTOFF21L: | |
3518 | case R_PARISC_PLTOFF14R: | |
3519 | case R_PARISC_PLTOFF14F: | |
3520 | case R_PARISC_PLTOFF14WR: | |
3521 | case R_PARISC_PLTOFF14DR: | |
3522 | case R_PARISC_PLTOFF16F: | |
3523 | case R_PARISC_PLTOFF16WF: | |
3524 | case R_PARISC_PLTOFF16DF: | |
3525 | { | |
3526 | /* We want the value of the PLT offset for this symbol, not | |
3527 | the symbol's actual address. Note that __gp may not point | |
3528 | to the start of the DLT, so we have to compute the absolute | |
3529 | address, then subtract out the value of __gp. */ | |
3530 | value = (hh->plt_offset | |
9b8a8575 L |
3531 | + hppa_info->root.splt->output_offset |
3532 | + hppa_info->root.splt->output_section->vma); | |
5887528b DA |
3533 | value -= _bfd_get_gp_value (output_bfd); |
3534 | ||
3535 | /* All PLTOFF relocations are basically the same at this point, | |
3536 | except that we need different field selectors for the 21bit | |
3537 | version vs the 14bit versions. */ | |
3538 | if (r_type == R_PARISC_PLTOFF21L) | |
3539 | value = hppa_field_adjust (value, addend, e_lrsel); | |
3540 | else if (r_type == R_PARISC_PLTOFF14F | |
3541 | || r_type == R_PARISC_PLTOFF16F | |
3542 | || r_type == R_PARISC_PLTOFF16WF | |
3543 | || r_type == R_PARISC_PLTOFF16DF) | |
3544 | value = hppa_field_adjust (value, addend, e_fsel); | |
3545 | else | |
3546 | value = hppa_field_adjust (value, addend, e_rrsel); | |
3547 | ||
3548 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3549 | break; | |
3550 | } | |
3551 | ||
3552 | case R_PARISC_LTOFF_FPTR32: | |
3553 | { | |
38cf70ca NC |
3554 | /* FIXME: There used to be code here to create the FPTR itself if |
3555 | the relocation was against a local symbol. But the code could | |
3556 | never have worked. If the assert below is ever triggered then | |
3557 | the code will need to be reinstated and fixed so that it does | |
3558 | what is needed. */ | |
3559 | BFD_ASSERT (hh != NULL); | |
5887528b DA |
3560 | |
3561 | /* We want the value of the DLT offset for this symbol, not | |
3562 | the symbol's actual address. Note that __gp may not point | |
3563 | to the start of the DLT, so we have to compute the absolute | |
3564 | address, then subtract out the value of __gp. */ | |
3565 | value = (hh->dlt_offset | |
3566 | + hppa_info->dlt_sec->output_offset | |
3567 | + hppa_info->dlt_sec->output_section->vma); | |
3568 | value -= _bfd_get_gp_value (output_bfd); | |
3569 | bfd_put_32 (input_bfd, value, hit_data); | |
3570 | return bfd_reloc_ok; | |
3571 | } | |
3572 | ||
3573 | case R_PARISC_LTOFF_FPTR64: | |
3574 | case R_PARISC_LTOFF_TP64: | |
3575 | { | |
3576 | /* We may still need to create the FPTR itself if it was for | |
3577 | a local symbol. */ | |
3578 | if (eh == NULL && r_type == R_PARISC_LTOFF_FPTR64) | |
3579 | { | |
3580 | /* The first two words of an .opd entry are zero. */ | |
3581 | memset (hppa_info->opd_sec->contents + hh->opd_offset, 0, 16); | |
3582 | ||
3583 | /* The next word is the address of the function. */ | |
3584 | bfd_put_64 (hppa_info->opd_sec->owner, value + addend, | |
3585 | (hppa_info->opd_sec->contents | |
3586 | + hh->opd_offset + 16)); | |
3587 | ||
3588 | /* The last word is our local __gp value. */ | |
586338b8 | 3589 | value = _bfd_get_gp_value (info->output_bfd); |
5887528b DA |
3590 | bfd_put_64 (hppa_info->opd_sec->owner, value, |
3591 | hppa_info->opd_sec->contents + hh->opd_offset + 24); | |
3592 | ||
3593 | /* The DLT value is the address of the .opd entry. */ | |
3594 | value = (hh->opd_offset | |
3595 | + hppa_info->opd_sec->output_offset | |
3596 | + hppa_info->opd_sec->output_section->vma); | |
3597 | ||
3598 | bfd_put_64 (hppa_info->dlt_sec->owner, | |
3599 | value, | |
3600 | hppa_info->dlt_sec->contents + hh->dlt_offset); | |
3601 | } | |
3602 | ||
3603 | /* We want the value of the DLT offset for this symbol, not | |
3604 | the symbol's actual address. Note that __gp may not point | |
3605 | to the start of the DLT, so we have to compute the absolute | |
3606 | address, then subtract out the value of __gp. */ | |
3607 | value = (hh->dlt_offset | |
3608 | + hppa_info->dlt_sec->output_offset | |
3609 | + hppa_info->dlt_sec->output_section->vma); | |
3610 | value -= _bfd_get_gp_value (output_bfd); | |
3611 | bfd_put_64 (input_bfd, value, hit_data); | |
3612 | return bfd_reloc_ok; | |
3613 | } | |
3614 | ||
3615 | case R_PARISC_DIR32: | |
3616 | bfd_put_32 (input_bfd, value + addend, hit_data); | |
3617 | return bfd_reloc_ok; | |
3618 | ||
3619 | case R_PARISC_DIR64: | |
3620 | bfd_put_64 (input_bfd, value + addend, hit_data); | |
3621 | return bfd_reloc_ok; | |
3622 | ||
3623 | case R_PARISC_GPREL64: | |
3624 | /* Subtract out the global pointer value to make value a DLT | |
3625 | relative address. */ | |
3626 | value -= _bfd_get_gp_value (output_bfd); | |
3627 | ||
3628 | bfd_put_64 (input_bfd, value + addend, hit_data); | |
3629 | return bfd_reloc_ok; | |
3630 | ||
3631 | case R_PARISC_LTOFF64: | |
3632 | /* We want the value of the DLT offset for this symbol, not | |
3633 | the symbol's actual address. Note that __gp may not point | |
3634 | to the start of the DLT, so we have to compute the absolute | |
3635 | address, then subtract out the value of __gp. */ | |
3636 | value = (hh->dlt_offset | |
3637 | + hppa_info->dlt_sec->output_offset | |
3638 | + hppa_info->dlt_sec->output_section->vma); | |
3639 | value -= _bfd_get_gp_value (output_bfd); | |
3640 | ||
3641 | bfd_put_64 (input_bfd, value + addend, hit_data); | |
3642 | return bfd_reloc_ok; | |
3643 | ||
3644 | case R_PARISC_PCREL32: | |
3645 | { | |
3646 | /* If this is a call to a function defined in another dynamic | |
3647 | library, then redirect the call to the local stub for this | |
3648 | function. */ | |
3649 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3650 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3651 | + hppa_info->stub_sec->output_section->vma); | |
3652 | ||
3653 | /* Turn VALUE into a proper PC relative address. */ | |
3654 | value -= (offset + input_section->output_offset | |
3655 | + input_section->output_section->vma); | |
3656 | ||
3657 | value += addend; | |
3658 | value -= 8; | |
3659 | bfd_put_32 (input_bfd, value, hit_data); | |
3660 | return bfd_reloc_ok; | |
3661 | } | |
3662 | ||
3663 | case R_PARISC_PCREL64: | |
3664 | { | |
3665 | /* If this is a call to a function defined in another dynamic | |
3666 | library, then redirect the call to the local stub for this | |
3667 | function. */ | |
3668 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3669 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3670 | + hppa_info->stub_sec->output_section->vma); | |
3671 | ||
3672 | /* Turn VALUE into a proper PC relative address. */ | |
3673 | value -= (offset + input_section->output_offset | |
3674 | + input_section->output_section->vma); | |
3675 | ||
3676 | value += addend; | |
3677 | value -= 8; | |
3678 | bfd_put_64 (input_bfd, value, hit_data); | |
3679 | return bfd_reloc_ok; | |
3680 | } | |
3681 | ||
3682 | case R_PARISC_FPTR64: | |
3683 | { | |
3684 | bfd_vma off; | |
3685 | ||
3686 | /* We may still need to create the FPTR itself if it was for | |
3687 | a local symbol. */ | |
3688 | if (hh == NULL) | |
3689 | { | |
3690 | bfd_vma *local_opd_offsets; | |
3691 | ||
07d6d2b8 AM |
3692 | if (local_offsets == NULL) |
3693 | abort (); | |
5887528b DA |
3694 | |
3695 | local_opd_offsets = local_offsets + 2 * symtab_hdr->sh_info; | |
3696 | off = local_opd_offsets[r_symndx]; | |
3697 | ||
3698 | /* The last bit records whether we've already initialised | |
3699 | this local .opd entry. */ | |
3700 | if ((off & 1) != 0) | |
3701 | { | |
3702 | BFD_ASSERT (off != (bfd_vma) -1); | |
07d6d2b8 | 3703 | off &= ~1; |
5887528b DA |
3704 | } |
3705 | else | |
3706 | { | |
3707 | /* The first two words of an .opd entry are zero. */ | |
3708 | memset (hppa_info->opd_sec->contents + off, 0, 16); | |
3709 | ||
3710 | /* The next word is the address of the function. */ | |
3711 | bfd_put_64 (hppa_info->opd_sec->owner, value + addend, | |
3712 | (hppa_info->opd_sec->contents + off + 16)); | |
3713 | ||
3714 | /* The last word is our local __gp value. */ | |
586338b8 | 3715 | value = _bfd_get_gp_value (info->output_bfd); |
5887528b DA |
3716 | bfd_put_64 (hppa_info->opd_sec->owner, value, |
3717 | hppa_info->opd_sec->contents + off + 24); | |
3718 | } | |
3719 | } | |
3720 | else | |
3721 | off = hh->opd_offset; | |
3722 | ||
3723 | if (hh == NULL || hh->want_opd) | |
3724 | /* We want the value of the OPD offset for this symbol. */ | |
3725 | value = (off | |
3726 | + hppa_info->opd_sec->output_offset | |
3727 | + hppa_info->opd_sec->output_section->vma); | |
3728 | else | |
3729 | /* We want the address of the symbol. */ | |
3730 | value += addend; | |
3731 | ||
3732 | bfd_put_64 (input_bfd, value, hit_data); | |
3733 | return bfd_reloc_ok; | |
3734 | } | |
3735 | ||
3736 | case R_PARISC_SECREL32: | |
3737 | if (sym_sec) | |
3738 | value -= sym_sec->output_section->vma; | |
3739 | bfd_put_32 (input_bfd, value + addend, hit_data); | |
3740 | return bfd_reloc_ok; | |
3741 | ||
3742 | case R_PARISC_SEGREL32: | |
3743 | case R_PARISC_SEGREL64: | |
3744 | { | |
3745 | /* If this is the first SEGREL relocation, then initialize | |
3746 | the segment base values. */ | |
3747 | if (hppa_info->text_segment_base == (bfd_vma) -1) | |
3748 | bfd_map_over_sections (output_bfd, elf_hppa_record_segment_addrs, | |
3749 | hppa_info); | |
3750 | ||
3751 | /* VALUE holds the absolute address. We want to include the | |
3752 | addend, then turn it into a segment relative address. | |
3753 | ||
3754 | The segment is derived from SYM_SEC. We assume that there are | |
3755 | only two segments of note in the resulting executable/shlib. | |
3756 | A readonly segment (.text) and a readwrite segment (.data). */ | |
3757 | value += addend; | |
3758 | ||
3759 | if (sym_sec->flags & SEC_CODE) | |
3760 | value -= hppa_info->text_segment_base; | |
3761 | else | |
3762 | value -= hppa_info->data_segment_base; | |
3763 | ||
3764 | if (r_type == R_PARISC_SEGREL32) | |
3765 | bfd_put_32 (input_bfd, value, hit_data); | |
3766 | else | |
3767 | bfd_put_64 (input_bfd, value, hit_data); | |
3768 | return bfd_reloc_ok; | |
3769 | } | |
3770 | ||
3771 | /* Something we don't know how to handle. */ | |
3772 | default: | |
3773 | return bfd_reloc_notsupported; | |
3774 | } | |
3775 | ||
3776 | /* Update the instruction word. */ | |
3777 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); | |
3778 | return bfd_reloc_ok; | |
3779 | } | |
3780 | ||
3781 | /* Relocate an HPPA ELF section. */ | |
3782 | ||
3783 | static bfd_boolean | |
3784 | elf64_hppa_relocate_section (bfd *output_bfd, | |
3785 | struct bfd_link_info *info, | |
3786 | bfd *input_bfd, | |
3787 | asection *input_section, | |
3788 | bfd_byte *contents, | |
3789 | Elf_Internal_Rela *relocs, | |
3790 | Elf_Internal_Sym *local_syms, | |
3791 | asection **local_sections) | |
3792 | { | |
3793 | Elf_Internal_Shdr *symtab_hdr; | |
3794 | Elf_Internal_Rela *rel; | |
3795 | Elf_Internal_Rela *relend; | |
3796 | struct elf64_hppa_link_hash_table *hppa_info; | |
3797 | ||
3798 | hppa_info = hppa_link_hash_table (info); | |
4dfe6ac6 NC |
3799 | if (hppa_info == NULL) |
3800 | return FALSE; | |
3801 | ||
5887528b DA |
3802 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
3803 | ||
3804 | rel = relocs; | |
3805 | relend = relocs + input_section->reloc_count; | |
3806 | for (; rel < relend; rel++) | |
3807 | { | |
3808 | int r_type; | |
3809 | reloc_howto_type *howto = elf_hppa_howto_table + ELF_R_TYPE (rel->r_info); | |
3810 | unsigned long r_symndx; | |
3811 | struct elf_link_hash_entry *eh; | |
3812 | Elf_Internal_Sym *sym; | |
3813 | asection *sym_sec; | |
3814 | bfd_vma relocation; | |
3815 | bfd_reloc_status_type r; | |
5887528b DA |
3816 | |
3817 | r_type = ELF_R_TYPE (rel->r_info); | |
3818 | if (r_type < 0 || r_type >= (int) R_PARISC_UNIMPLEMENTED) | |
3819 | { | |
3820 | bfd_set_error (bfd_error_bad_value); | |
3821 | return FALSE; | |
3822 | } | |
3823 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3824 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3825 | continue; | |
3826 | ||
3827 | /* This is a final link. */ | |
3828 | r_symndx = ELF_R_SYM (rel->r_info); | |
3829 | eh = NULL; | |
3830 | sym = NULL; | |
3831 | sym_sec = NULL; | |
5887528b DA |
3832 | if (r_symndx < symtab_hdr->sh_info) |
3833 | { | |
3834 | /* This is a local symbol, hh defaults to NULL. */ | |
3835 | sym = local_syms + r_symndx; | |
3836 | sym_sec = local_sections[r_symndx]; | |
3837 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rel); | |
3838 | } | |
3839 | else | |
3840 | { | |
3841 | /* This is not a local symbol. */ | |
5887528b DA |
3842 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); |
3843 | ||
68ffbac6 | 3844 | /* It seems this can happen with erroneous or unsupported |
5887528b DA |
3845 | input (mixing a.out and elf in an archive, for example.) */ |
3846 | if (sym_hashes == NULL) | |
3847 | return FALSE; | |
3848 | ||
3849 | eh = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3850 | ||
8a5da09b AM |
3851 | if (info->wrap_hash != NULL |
3852 | && (input_section->flags & SEC_DEBUGGING) != 0) | |
3853 | eh = ((struct elf_link_hash_entry *) | |
3854 | unwrap_hash_lookup (info, input_bfd, &eh->root)); | |
3855 | ||
68ffbac6 | 3856 | while (eh->root.type == bfd_link_hash_indirect |
5887528b DA |
3857 | || eh->root.type == bfd_link_hash_warning) |
3858 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
3859 | ||
5887528b DA |
3860 | relocation = 0; |
3861 | if (eh->root.type == bfd_link_hash_defined | |
3862 | || eh->root.type == bfd_link_hash_defweak) | |
3863 | { | |
3864 | sym_sec = eh->root.u.def.section; | |
c7e2358a AM |
3865 | if (sym_sec != NULL |
3866 | && sym_sec->output_section != NULL) | |
5887528b DA |
3867 | relocation = (eh->root.u.def.value |
3868 | + sym_sec->output_section->vma | |
3869 | + sym_sec->output_offset); | |
3870 | } | |
3871 | else if (eh->root.type == bfd_link_hash_undefweak) | |
3872 | ; | |
3873 | else if (info->unresolved_syms_in_objects == RM_IGNORE | |
3874 | && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT) | |
3875 | ; | |
0e1862bb | 3876 | else if (!bfd_link_relocatable (info) |
5887528b DA |
3877 | && elf_hppa_is_dynamic_loader_symbol (eh->root.root.string)) |
3878 | continue; | |
0e1862bb | 3879 | else if (!bfd_link_relocatable (info)) |
5887528b DA |
3880 | { |
3881 | bfd_boolean err; | |
95a51568 FS |
3882 | |
3883 | err = (info->unresolved_syms_in_objects == RM_DIAGNOSE | |
3884 | && !info->warn_unresolved_syms) | |
3885 | || ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT; | |
3886 | ||
3887 | info->callbacks->undefined_symbol | |
3888 | (info, eh->root.root.string, input_bfd, | |
3889 | input_section, rel->r_offset, err); | |
5887528b DA |
3890 | } |
3891 | ||
07d6d2b8 AM |
3892 | if (!bfd_link_relocatable (info) |
3893 | && relocation == 0 | |
3894 | && eh->root.type != bfd_link_hash_defined | |
3895 | && eh->root.type != bfd_link_hash_defweak | |
3896 | && eh->root.type != bfd_link_hash_undefweak) | |
3897 | { | |
3898 | if (info->unresolved_syms_in_objects == RM_IGNORE | |
3899 | && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT | |
3900 | && eh->type == STT_PARISC_MILLI) | |
95a51568 | 3901 | info->callbacks->undefined_symbol |
1a72702b AM |
3902 | (info, eh_name (eh), input_bfd, |
3903 | input_section, rel->r_offset, FALSE); | |
07d6d2b8 | 3904 | } |
5887528b DA |
3905 | } |
3906 | ||
dbaa2011 | 3907 | if (sym_sec != NULL && discarded_section (sym_sec)) |
e4067dbb | 3908 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 3909 | rel, 1, relend, howto, 0, contents); |
5887528b | 3910 | |
0e1862bb | 3911 | if (bfd_link_relocatable (info)) |
5887528b DA |
3912 | continue; |
3913 | ||
3914 | r = elf_hppa_final_link_relocate (rel, input_bfd, output_bfd, | |
3915 | input_section, contents, | |
3916 | relocation, info, sym_sec, | |
3917 | eh); | |
3918 | ||
3919 | if (r != bfd_reloc_ok) | |
3920 | { | |
3921 | switch (r) | |
3922 | { | |
3923 | default: | |
3924 | abort (); | |
3925 | case bfd_reloc_overflow: | |
3926 | { | |
3927 | const char *sym_name; | |
3928 | ||
3929 | if (eh != NULL) | |
3930 | sym_name = NULL; | |
3931 | else | |
3932 | { | |
3933 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
3934 | symtab_hdr->sh_link, | |
3935 | sym->st_name); | |
3936 | if (sym_name == NULL) | |
3937 | return FALSE; | |
3938 | if (*sym_name == '\0') | |
fd361982 | 3939 | sym_name = bfd_section_name (sym_sec); |
5887528b DA |
3940 | } |
3941 | ||
1a72702b AM |
3942 | (*info->callbacks->reloc_overflow) |
3943 | (info, (eh ? &eh->root : NULL), sym_name, howto->name, | |
3944 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); | |
5887528b DA |
3945 | } |
3946 | break; | |
3947 | } | |
3948 | } | |
3949 | } | |
3950 | return TRUE; | |
3951 | } | |
3952 | ||
b35d266b | 3953 | static const struct bfd_elf_special_section elf64_hppa_special_sections[] = |
2f89ff8d | 3954 | { |
df3a023b | 3955 | { STRING_COMMA_LEN (".tbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_HP_TLS }, |
07d6d2b8 AM |
3956 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
3957 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
3958 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, | |
3959 | { STRING_COMMA_LEN (".dlt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, | |
0112cd26 | 3960 | { STRING_COMMA_LEN (".sdata"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, |
07d6d2b8 | 3961 | { STRING_COMMA_LEN (".sbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, |
07d6d2b8 | 3962 | { NULL, 0, 0, 0, 0 } |
2f89ff8d L |
3963 | }; |
3964 | ||
15bda425 JL |
3965 | /* The hash bucket size is the standard one, namely 4. */ |
3966 | ||
3967 | const struct elf_size_info hppa64_elf_size_info = | |
3968 | { | |
3969 | sizeof (Elf64_External_Ehdr), | |
3970 | sizeof (Elf64_External_Phdr), | |
3971 | sizeof (Elf64_External_Shdr), | |
3972 | sizeof (Elf64_External_Rel), | |
3973 | sizeof (Elf64_External_Rela), | |
3974 | sizeof (Elf64_External_Sym), | |
3975 | sizeof (Elf64_External_Dyn), | |
3976 | sizeof (Elf_External_Note), | |
3977 | 4, | |
3978 | 1, | |
45d6a902 | 3979 | 64, 3, |
15bda425 JL |
3980 | ELFCLASS64, EV_CURRENT, |
3981 | bfd_elf64_write_out_phdrs, | |
3982 | bfd_elf64_write_shdrs_and_ehdr, | |
1489a3a0 | 3983 | bfd_elf64_checksum_contents, |
15bda425 | 3984 | bfd_elf64_write_relocs, |
73ff0d56 | 3985 | bfd_elf64_swap_symbol_in, |
15bda425 JL |
3986 | bfd_elf64_swap_symbol_out, |
3987 | bfd_elf64_slurp_reloc_table, | |
3988 | bfd_elf64_slurp_symbol_table, | |
3989 | bfd_elf64_swap_dyn_in, | |
3990 | bfd_elf64_swap_dyn_out, | |
947216bf AM |
3991 | bfd_elf64_swap_reloc_in, |
3992 | bfd_elf64_swap_reloc_out, | |
3993 | bfd_elf64_swap_reloca_in, | |
3994 | bfd_elf64_swap_reloca_out | |
15bda425 JL |
3995 | }; |
3996 | ||
6d00b590 | 3997 | #define TARGET_BIG_SYM hppa_elf64_vec |
15bda425 JL |
3998 | #define TARGET_BIG_NAME "elf64-hppa" |
3999 | #define ELF_ARCH bfd_arch_hppa | |
ae95ffa6 | 4000 | #define ELF_TARGET_ID HPPA64_ELF_DATA |
15bda425 JL |
4001 | #define ELF_MACHINE_CODE EM_PARISC |
4002 | /* This is not strictly correct. The maximum page size for PA2.0 is | |
4003 | 64M. But everything still uses 4k. */ | |
4004 | #define ELF_MAXPAGESIZE 0x1000 | |
d1036acb L |
4005 | #define ELF_OSABI ELFOSABI_HPUX |
4006 | ||
15bda425 | 4007 | #define bfd_elf64_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup |
157090f7 | 4008 | #define bfd_elf64_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup |
15bda425 JL |
4009 | #define bfd_elf64_bfd_is_local_label_name elf_hppa_is_local_label_name |
4010 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4011 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
4012 | ||
4013 | #define elf_backend_section_from_shdr elf64_hppa_section_from_shdr | |
4014 | #define elf_backend_object_p elf64_hppa_object_p | |
4015 | #define elf_backend_final_write_processing \ | |
4016 | elf_hppa_final_write_processing | |
99c79b2e | 4017 | #define elf_backend_fake_sections elf_hppa_fake_sections |
15bda425 JL |
4018 | #define elf_backend_add_symbol_hook elf_hppa_add_symbol_hook |
4019 | ||
f0fe0e16 | 4020 | #define elf_backend_relocate_section elf_hppa_relocate_section |
15bda425 JL |
4021 | |
4022 | #define bfd_elf64_bfd_final_link elf_hppa_final_link | |
4023 | ||
4024 | #define elf_backend_create_dynamic_sections \ | |
4025 | elf64_hppa_create_dynamic_sections | |
ed7e9d0b | 4026 | #define elf_backend_init_file_header elf64_hppa_init_file_header |
15bda425 | 4027 | |
d00dd7dc AM |
4028 | #define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all |
4029 | ||
15bda425 JL |
4030 | #define elf_backend_adjust_dynamic_symbol \ |
4031 | elf64_hppa_adjust_dynamic_symbol | |
4032 | ||
4033 | #define elf_backend_size_dynamic_sections \ | |
4034 | elf64_hppa_size_dynamic_sections | |
4035 | ||
4036 | #define elf_backend_finish_dynamic_symbol \ | |
4037 | elf64_hppa_finish_dynamic_symbol | |
4038 | #define elf_backend_finish_dynamic_sections \ | |
4039 | elf64_hppa_finish_dynamic_sections | |
235ecfbc NC |
4040 | #define elf_backend_grok_prstatus elf64_hppa_grok_prstatus |
4041 | #define elf_backend_grok_psinfo elf64_hppa_grok_psinfo | |
68ffbac6 | 4042 | |
15bda425 JL |
4043 | /* Stuff for the BFD linker: */ |
4044 | #define bfd_elf64_bfd_link_hash_table_create \ | |
4045 | elf64_hppa_hash_table_create | |
4046 | ||
4047 | #define elf_backend_check_relocs \ | |
4048 | elf64_hppa_check_relocs | |
4049 | ||
4050 | #define elf_backend_size_info \ | |
4051 | hppa64_elf_size_info | |
4052 | ||
4053 | #define elf_backend_additional_program_headers \ | |
4054 | elf64_hppa_additional_program_headers | |
4055 | ||
4056 | #define elf_backend_modify_segment_map \ | |
4057 | elf64_hppa_modify_segment_map | |
4058 | ||
1a9ccd70 NC |
4059 | #define elf_backend_allow_non_load_phdr \ |
4060 | elf64_hppa_allow_non_load_phdr | |
4061 | ||
15bda425 JL |
4062 | #define elf_backend_link_output_symbol_hook \ |
4063 | elf64_hppa_link_output_symbol_hook | |
4064 | ||
15bda425 JL |
4065 | #define elf_backend_want_got_plt 0 |
4066 | #define elf_backend_plt_readonly 0 | |
4067 | #define elf_backend_want_plt_sym 0 | |
4068 | #define elf_backend_got_header_size 0 | |
b34976b6 AM |
4069 | #define elf_backend_type_change_ok TRUE |
4070 | #define elf_backend_get_symbol_type elf64_hppa_elf_get_symbol_type | |
4071 | #define elf_backend_reloc_type_class elf64_hppa_reloc_type_class | |
4072 | #define elf_backend_rela_normal 1 | |
29ef7005 | 4073 | #define elf_backend_special_sections elf64_hppa_special_sections |
8a696751 | 4074 | #define elf_backend_action_discarded elf_hppa_action_discarded |
d97a8924 | 4075 | #define elf_backend_section_from_phdr elf64_hppa_section_from_phdr |
15bda425 | 4076 | |
83d1651b L |
4077 | #define elf64_bed elf64_hppa_hpux_bed |
4078 | ||
15bda425 | 4079 | #include "elf64-target.h" |
d952f17a AM |
4080 | |
4081 | #undef TARGET_BIG_SYM | |
6d00b590 | 4082 | #define TARGET_BIG_SYM hppa_elf64_linux_vec |
d952f17a AM |
4083 | #undef TARGET_BIG_NAME |
4084 | #define TARGET_BIG_NAME "elf64-hppa-linux" | |
d1036acb | 4085 | #undef ELF_OSABI |
9c55345c | 4086 | #define ELF_OSABI ELFOSABI_GNU |
83d1651b L |
4087 | #undef elf64_bed |
4088 | #define elf64_bed elf64_hppa_linux_bed | |
df3a023b AM |
4089 | #undef elf_backend_special_sections |
4090 | #define elf_backend_special_sections (elf64_hppa_special_sections + 1) | |
d952f17a | 4091 | |
d952f17a | 4092 | #include "elf64-target.h" |