Commit | Line | Data |
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b352eebf | 1 | /* Support for HPPA 64-bit ELF |
5bf135a7 NC |
2 | Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, |
3 | 2009, 2010, 2011, 2012 | |
dbaa2011 | 4 | Free Software Foundation, Inc. |
15bda425 | 5 | |
ae9a127f | 6 | This file is part of BFD, the Binary File Descriptor library. |
15bda425 | 7 | |
ae9a127f NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 10 | the Free Software Foundation; either version 3 of the License, or |
ae9a127f | 11 | (at your option) any later version. |
15bda425 | 12 | |
ae9a127f NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
15bda425 | 17 | |
ae9a127f NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
21 | MA 02110-1301, USA. */ | |
15bda425 | 22 | |
15bda425 | 23 | #include "sysdep.h" |
df7b86aa | 24 | #include "alloca-conf.h" |
3db64b00 | 25 | #include "bfd.h" |
15bda425 JL |
26 | #include "libbfd.h" |
27 | #include "elf-bfd.h" | |
28 | #include "elf/hppa.h" | |
29 | #include "libhppa.h" | |
30 | #include "elf64-hppa.h" | |
8bc9c892 | 31 | |
8bc9c892 | 32 | |
15bda425 JL |
33 | #define ARCH_SIZE 64 |
34 | ||
35 | #define PLT_ENTRY_SIZE 0x10 | |
36 | #define DLT_ENTRY_SIZE 0x8 | |
37 | #define OPD_ENTRY_SIZE 0x20 | |
fe8bc63d | 38 | |
15bda425 JL |
39 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/pa20_64/dld.sl" |
40 | ||
41 | /* The stub is supposed to load the target address and target's DP | |
42 | value out of the PLT, then do an external branch to the target | |
43 | address. | |
44 | ||
45 | LDD PLTOFF(%r27),%r1 | |
46 | BVE (%r1) | |
47 | LDD PLTOFF+8(%r27),%r27 | |
48 | ||
49 | Note that we must use the LDD with a 14 bit displacement, not the one | |
50 | with a 5 bit displacement. */ | |
51 | static char plt_stub[] = {0x53, 0x61, 0x00, 0x00, 0xe8, 0x20, 0xd0, 0x00, | |
52 | 0x53, 0x7b, 0x00, 0x00 }; | |
53 | ||
a03bd320 | 54 | struct elf64_hppa_link_hash_entry |
15bda425 | 55 | { |
a03bd320 | 56 | struct elf_link_hash_entry eh; |
15bda425 JL |
57 | |
58 | /* Offsets for this symbol in various linker sections. */ | |
59 | bfd_vma dlt_offset; | |
60 | bfd_vma plt_offset; | |
61 | bfd_vma opd_offset; | |
62 | bfd_vma stub_offset; | |
63 | ||
15bda425 JL |
64 | /* The index of the (possibly local) symbol in the input bfd and its |
65 | associated BFD. Needed so that we can have relocs against local | |
66 | symbols in shared libraries. */ | |
dc810e39 | 67 | long sym_indx; |
15bda425 JL |
68 | bfd *owner; |
69 | ||
70 | /* Dynamic symbols may need to have two different values. One for | |
71 | the dynamic symbol table, one for the normal symbol table. | |
72 | ||
73 | In such cases we store the symbol's real value and section | |
74 | index here so we can restore the real value before we write | |
75 | the normal symbol table. */ | |
76 | bfd_vma st_value; | |
77 | int st_shndx; | |
78 | ||
79 | /* Used to count non-got, non-plt relocations for delayed sizing | |
80 | of relocation sections. */ | |
81 | struct elf64_hppa_dyn_reloc_entry | |
82 | { | |
83 | /* Next relocation in the chain. */ | |
84 | struct elf64_hppa_dyn_reloc_entry *next; | |
85 | ||
86 | /* The type of the relocation. */ | |
87 | int type; | |
88 | ||
89 | /* The input section of the relocation. */ | |
90 | asection *sec; | |
91 | ||
a03bd320 DA |
92 | /* Number of relocs copied in this section. */ |
93 | bfd_size_type count; | |
94 | ||
15bda425 JL |
95 | /* The index of the section symbol for the input section of |
96 | the relocation. Only needed when building shared libraries. */ | |
97 | int sec_symndx; | |
98 | ||
99 | /* The offset within the input section of the relocation. */ | |
100 | bfd_vma offset; | |
101 | ||
102 | /* The addend for the relocation. */ | |
103 | bfd_vma addend; | |
104 | ||
105 | } *reloc_entries; | |
106 | ||
107 | /* Nonzero if this symbol needs an entry in one of the linker | |
108 | sections. */ | |
109 | unsigned want_dlt; | |
110 | unsigned want_plt; | |
111 | unsigned want_opd; | |
112 | unsigned want_stub; | |
113 | }; | |
114 | ||
15bda425 JL |
115 | struct elf64_hppa_link_hash_table |
116 | { | |
117 | struct elf_link_hash_table root; | |
118 | ||
119 | /* Shortcuts to get to the various linker defined sections. */ | |
120 | asection *dlt_sec; | |
121 | asection *dlt_rel_sec; | |
122 | asection *plt_sec; | |
123 | asection *plt_rel_sec; | |
124 | asection *opd_sec; | |
125 | asection *opd_rel_sec; | |
126 | asection *other_rel_sec; | |
127 | ||
128 | /* Offset of __gp within .plt section. When the PLT gets large we want | |
129 | to slide __gp into the PLT section so that we can continue to use | |
130 | single DP relative instructions to load values out of the PLT. */ | |
131 | bfd_vma gp_offset; | |
132 | ||
133 | /* Note this is not strictly correct. We should create a stub section for | |
134 | each input section with calls. The stub section should be placed before | |
135 | the section with the call. */ | |
136 | asection *stub_sec; | |
137 | ||
138 | bfd_vma text_segment_base; | |
139 | bfd_vma data_segment_base; | |
140 | ||
15bda425 JL |
141 | /* We build tables to map from an input section back to its |
142 | symbol index. This is the BFD for which we currently have | |
143 | a map. */ | |
144 | bfd *section_syms_bfd; | |
145 | ||
146 | /* Array of symbol numbers for each input section attached to the | |
147 | current BFD. */ | |
148 | int *section_syms; | |
149 | }; | |
150 | ||
a03bd320 | 151 | #define hppa_link_hash_table(p) \ |
4dfe6ac6 NC |
152 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
153 | == HPPA64_ELF_DATA ? ((struct elf64_hppa_link_hash_table *) ((p)->hash)) : NULL) | |
15bda425 | 154 | |
a03bd320 DA |
155 | #define hppa_elf_hash_entry(ent) \ |
156 | ((struct elf64_hppa_link_hash_entry *)(ent)) | |
157 | ||
158 | #define eh_name(eh) \ | |
159 | (eh ? eh->root.root.string : "<undef>") | |
160 | ||
15bda425 | 161 | typedef struct bfd_hash_entry *(*new_hash_entry_func) |
813c8a3c | 162 | (struct bfd_hash_entry *, struct bfd_hash_table *, const char *); |
15bda425 | 163 | |
15bda425 | 164 | static struct bfd_link_hash_table *elf64_hppa_hash_table_create |
813c8a3c DA |
165 | (bfd *abfd); |
166 | ||
15bda425 JL |
167 | /* This must follow the definitions of the various derived linker |
168 | hash tables and shared functions. */ | |
169 | #include "elf-hppa.h" | |
170 | ||
b34976b6 | 171 | static bfd_boolean elf64_hppa_object_p |
813c8a3c | 172 | (bfd *); |
15bda425 | 173 | |
15bda425 | 174 | static void elf64_hppa_post_process_headers |
813c8a3c | 175 | (bfd *, struct bfd_link_info *); |
15bda425 | 176 | |
b34976b6 | 177 | static bfd_boolean elf64_hppa_create_dynamic_sections |
813c8a3c | 178 | (bfd *, struct bfd_link_info *); |
15bda425 | 179 | |
b34976b6 | 180 | static bfd_boolean elf64_hppa_adjust_dynamic_symbol |
813c8a3c | 181 | (struct bfd_link_info *, struct elf_link_hash_entry *); |
15bda425 | 182 | |
b34976b6 | 183 | static bfd_boolean elf64_hppa_mark_milli_and_exported_functions |
813c8a3c | 184 | (struct elf_link_hash_entry *, void *); |
47b7c2db | 185 | |
b34976b6 | 186 | static bfd_boolean elf64_hppa_size_dynamic_sections |
813c8a3c | 187 | (bfd *, struct bfd_link_info *); |
15bda425 | 188 | |
6e0b88f1 | 189 | static int elf64_hppa_link_output_symbol_hook |
813c8a3c DA |
190 | (struct bfd_link_info *, const char *, Elf_Internal_Sym *, |
191 | asection *, struct elf_link_hash_entry *); | |
99c79b2e | 192 | |
b34976b6 | 193 | static bfd_boolean elf64_hppa_finish_dynamic_symbol |
813c8a3c DA |
194 | (bfd *, struct bfd_link_info *, |
195 | struct elf_link_hash_entry *, Elf_Internal_Sym *); | |
fe8bc63d | 196 | |
b34976b6 | 197 | static bfd_boolean elf64_hppa_finish_dynamic_sections |
813c8a3c | 198 | (bfd *, struct bfd_link_info *); |
15bda425 | 199 | |
b34976b6 | 200 | static bfd_boolean elf64_hppa_check_relocs |
813c8a3c DA |
201 | (bfd *, struct bfd_link_info *, |
202 | asection *, const Elf_Internal_Rela *); | |
15bda425 | 203 | |
b34976b6 | 204 | static bfd_boolean elf64_hppa_dynamic_symbol_p |
813c8a3c | 205 | (struct elf_link_hash_entry *, struct bfd_link_info *); |
15bda425 | 206 | |
b34976b6 | 207 | static bfd_boolean elf64_hppa_mark_exported_functions |
813c8a3c | 208 | (struct elf_link_hash_entry *, void *); |
15bda425 | 209 | |
b34976b6 | 210 | static bfd_boolean elf64_hppa_finalize_opd |
a03bd320 | 211 | (struct elf_link_hash_entry *, void *); |
15bda425 | 212 | |
b34976b6 | 213 | static bfd_boolean elf64_hppa_finalize_dlt |
a03bd320 | 214 | (struct elf_link_hash_entry *, void *); |
15bda425 | 215 | |
b34976b6 | 216 | static bfd_boolean allocate_global_data_dlt |
a03bd320 | 217 | (struct elf_link_hash_entry *, void *); |
15bda425 | 218 | |
b34976b6 | 219 | static bfd_boolean allocate_global_data_plt |
a03bd320 | 220 | (struct elf_link_hash_entry *, void *); |
15bda425 | 221 | |
b34976b6 | 222 | static bfd_boolean allocate_global_data_stub |
a03bd320 | 223 | (struct elf_link_hash_entry *, void *); |
15bda425 | 224 | |
b34976b6 | 225 | static bfd_boolean allocate_global_data_opd |
a03bd320 | 226 | (struct elf_link_hash_entry *, void *); |
15bda425 | 227 | |
b34976b6 | 228 | static bfd_boolean get_reloc_section |
813c8a3c | 229 | (bfd *, struct elf64_hppa_link_hash_table *, asection *); |
15bda425 | 230 | |
b34976b6 | 231 | static bfd_boolean count_dyn_reloc |
a03bd320 | 232 | (bfd *, struct elf64_hppa_link_hash_entry *, |
813c8a3c | 233 | int, asection *, int, bfd_vma, bfd_vma); |
15bda425 | 234 | |
b34976b6 | 235 | static bfd_boolean allocate_dynrel_entries |
a03bd320 | 236 | (struct elf_link_hash_entry *, void *); |
15bda425 | 237 | |
b34976b6 | 238 | static bfd_boolean elf64_hppa_finalize_dynreloc |
a03bd320 | 239 | (struct elf_link_hash_entry *, void *); |
15bda425 | 240 | |
b34976b6 | 241 | static bfd_boolean get_opd |
813c8a3c | 242 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 243 | |
b34976b6 | 244 | static bfd_boolean get_plt |
813c8a3c | 245 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 246 | |
b34976b6 | 247 | static bfd_boolean get_dlt |
813c8a3c | 248 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 249 | |
b34976b6 | 250 | static bfd_boolean get_stub |
813c8a3c | 251 | (bfd *, struct bfd_link_info *, struct elf64_hppa_link_hash_table *); |
15bda425 | 252 | |
3fab46d0 | 253 | static int elf64_hppa_elf_get_symbol_type |
813c8a3c | 254 | (Elf_Internal_Sym *, int); |
3fab46d0 | 255 | |
a03bd320 | 256 | /* Initialize an entry in the link hash table. */ |
15bda425 | 257 | |
a03bd320 DA |
258 | static struct bfd_hash_entry * |
259 | hppa64_link_hash_newfunc (struct bfd_hash_entry *entry, | |
260 | struct bfd_hash_table *table, | |
261 | const char *string) | |
15bda425 | 262 | { |
15bda425 JL |
263 | /* Allocate the structure if it has not already been allocated by a |
264 | subclass. */ | |
a03bd320 DA |
265 | if (entry == NULL) |
266 | { | |
267 | entry = bfd_hash_allocate (table, | |
268 | sizeof (struct elf64_hppa_link_hash_entry)); | |
269 | if (entry == NULL) | |
270 | return entry; | |
271 | } | |
15bda425 | 272 | |
15bda425 | 273 | /* Call the allocation method of the superclass. */ |
a03bd320 DA |
274 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
275 | if (entry != NULL) | |
276 | { | |
277 | struct elf64_hppa_link_hash_entry *hh; | |
15bda425 | 278 | |
a03bd320 DA |
279 | /* Initialize our local data. All zeros. */ |
280 | hh = hppa_elf_hash_entry (entry); | |
281 | memset (&hh->dlt_offset, 0, | |
282 | (sizeof (struct elf64_hppa_link_hash_entry) | |
283 | - offsetof (struct elf64_hppa_link_hash_entry, dlt_offset))); | |
284 | } | |
336549c1 | 285 | |
a03bd320 | 286 | return entry; |
15bda425 JL |
287 | } |
288 | ||
289 | /* Create the derived linker hash table. The PA64 ELF port uses this | |
290 | derived hash table to keep information specific to the PA ElF | |
291 | linker (without using static variables). */ | |
292 | ||
293 | static struct bfd_link_hash_table* | |
813c8a3c | 294 | elf64_hppa_hash_table_create (bfd *abfd) |
15bda425 | 295 | { |
a03bd320 DA |
296 | struct elf64_hppa_link_hash_table *htab; |
297 | bfd_size_type amt = sizeof (*htab); | |
15bda425 | 298 | |
22cdc249 | 299 | htab = bfd_zmalloc (amt); |
a03bd320 DA |
300 | if (htab == NULL) |
301 | return NULL; | |
15bda425 | 302 | |
a03bd320 DA |
303 | if (!_bfd_elf_link_hash_table_init (&htab->root, abfd, |
304 | hppa64_link_hash_newfunc, | |
4dfe6ac6 NC |
305 | sizeof (struct elf64_hppa_link_hash_entry), |
306 | HPPA64_ELF_DATA)) | |
a03bd320 | 307 | { |
22cdc249 | 308 | free (htab); |
a03bd320 DA |
309 | return NULL; |
310 | } | |
15bda425 | 311 | |
a03bd320 DA |
312 | htab->text_segment_base = (bfd_vma) -1; |
313 | htab->data_segment_base = (bfd_vma) -1; | |
15bda425 | 314 | |
a03bd320 | 315 | return &htab->root.root; |
15bda425 JL |
316 | } |
317 | \f | |
318 | /* Return nonzero if ABFD represents a PA2.0 ELF64 file. | |
319 | ||
320 | Additionally we set the default architecture and machine. */ | |
b34976b6 | 321 | static bfd_boolean |
813c8a3c | 322 | elf64_hppa_object_p (bfd *abfd) |
15bda425 | 323 | { |
24a5e751 L |
324 | Elf_Internal_Ehdr * i_ehdrp; |
325 | unsigned int flags; | |
d9634ba1 | 326 | |
24a5e751 L |
327 | i_ehdrp = elf_elfheader (abfd); |
328 | if (strcmp (bfd_get_target (abfd), "elf64-hppa-linux") == 0) | |
329 | { | |
9c55345c | 330 | /* GCC on hppa-linux produces binaries with OSABI=GNU, |
6c21aa76 | 331 | but the kernel produces corefiles with OSABI=SysV. */ |
9c55345c | 332 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU |
d97a8924 | 333 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ |
b34976b6 | 334 | return FALSE; |
24a5e751 L |
335 | } |
336 | else | |
337 | { | |
d97a8924 DA |
338 | /* HPUX produces binaries with OSABI=HPUX, |
339 | but the kernel produces corefiles with OSABI=SysV. */ | |
340 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX | |
341 | && i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ | |
b34976b6 | 342 | return FALSE; |
24a5e751 L |
343 | } |
344 | ||
345 | flags = i_ehdrp->e_flags; | |
d9634ba1 AM |
346 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
347 | { | |
348 | case EFA_PARISC_1_0: | |
349 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
350 | case EFA_PARISC_1_1: | |
351 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
352 | case EFA_PARISC_2_0: | |
d97a8924 DA |
353 | if (i_ehdrp->e_ident[EI_CLASS] == ELFCLASS64) |
354 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
355 | else | |
356 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
d9634ba1 AM |
357 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: |
358 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
359 | } | |
360 | /* Don't be fussy. */ | |
b34976b6 | 361 | return TRUE; |
15bda425 JL |
362 | } |
363 | ||
364 | /* Given section type (hdr->sh_type), return a boolean indicating | |
365 | whether or not the section is an elf64-hppa specific section. */ | |
b34976b6 | 366 | static bfd_boolean |
6dc132d9 L |
367 | elf64_hppa_section_from_shdr (bfd *abfd, |
368 | Elf_Internal_Shdr *hdr, | |
369 | const char *name, | |
370 | int shindex) | |
15bda425 | 371 | { |
15bda425 JL |
372 | switch (hdr->sh_type) |
373 | { | |
374 | case SHT_PARISC_EXT: | |
375 | if (strcmp (name, ".PARISC.archext") != 0) | |
b34976b6 | 376 | return FALSE; |
15bda425 JL |
377 | break; |
378 | case SHT_PARISC_UNWIND: | |
379 | if (strcmp (name, ".PARISC.unwind") != 0) | |
b34976b6 | 380 | return FALSE; |
15bda425 JL |
381 | break; |
382 | case SHT_PARISC_DOC: | |
383 | case SHT_PARISC_ANNOT: | |
384 | default: | |
b34976b6 | 385 | return FALSE; |
15bda425 JL |
386 | } |
387 | ||
6dc132d9 | 388 | if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex)) |
b34976b6 | 389 | return FALSE; |
15bda425 | 390 | |
b34976b6 | 391 | return TRUE; |
15bda425 JL |
392 | } |
393 | ||
15bda425 JL |
394 | /* SEC is a section containing relocs for an input BFD when linking; return |
395 | a suitable section for holding relocs in the output BFD for a link. */ | |
396 | ||
b34976b6 | 397 | static bfd_boolean |
813c8a3c DA |
398 | get_reloc_section (bfd *abfd, |
399 | struct elf64_hppa_link_hash_table *hppa_info, | |
400 | asection *sec) | |
15bda425 JL |
401 | { |
402 | const char *srel_name; | |
403 | asection *srel; | |
404 | bfd *dynobj; | |
405 | ||
406 | srel_name = (bfd_elf_string_from_elf_section | |
407 | (abfd, elf_elfheader(abfd)->e_shstrndx, | |
d4730f92 | 408 | _bfd_elf_single_rel_hdr(sec)->sh_name)); |
15bda425 | 409 | if (srel_name == NULL) |
b34976b6 | 410 | return FALSE; |
15bda425 | 411 | |
15bda425 JL |
412 | dynobj = hppa_info->root.dynobj; |
413 | if (!dynobj) | |
414 | hppa_info->root.dynobj = dynobj = abfd; | |
415 | ||
3d4d4302 | 416 | srel = bfd_get_linker_section (dynobj, srel_name); |
15bda425 JL |
417 | if (srel == NULL) |
418 | { | |
3d4d4302 AM |
419 | srel = bfd_make_section_anyway_with_flags (dynobj, srel_name, |
420 | (SEC_ALLOC | |
421 | | SEC_LOAD | |
422 | | SEC_HAS_CONTENTS | |
423 | | SEC_IN_MEMORY | |
424 | | SEC_LINKER_CREATED | |
425 | | SEC_READONLY)); | |
15bda425 | 426 | if (srel == NULL |
15bda425 | 427 | || !bfd_set_section_alignment (dynobj, srel, 3)) |
b34976b6 | 428 | return FALSE; |
15bda425 JL |
429 | } |
430 | ||
431 | hppa_info->other_rel_sec = srel; | |
b34976b6 | 432 | return TRUE; |
15bda425 JL |
433 | } |
434 | ||
fe8bc63d | 435 | /* Add a new entry to the list of dynamic relocations against DYN_H. |
15bda425 JL |
436 | |
437 | We use this to keep a record of all the FPTR relocations against a | |
438 | particular symbol so that we can create FPTR relocations in the | |
439 | output file. */ | |
440 | ||
b34976b6 | 441 | static bfd_boolean |
813c8a3c | 442 | count_dyn_reloc (bfd *abfd, |
a03bd320 | 443 | struct elf64_hppa_link_hash_entry *hh, |
813c8a3c DA |
444 | int type, |
445 | asection *sec, | |
446 | int sec_symndx, | |
447 | bfd_vma offset, | |
448 | bfd_vma addend) | |
15bda425 JL |
449 | { |
450 | struct elf64_hppa_dyn_reloc_entry *rent; | |
451 | ||
452 | rent = (struct elf64_hppa_dyn_reloc_entry *) | |
dc810e39 | 453 | bfd_alloc (abfd, (bfd_size_type) sizeof (*rent)); |
15bda425 | 454 | if (!rent) |
b34976b6 | 455 | return FALSE; |
15bda425 | 456 | |
a03bd320 | 457 | rent->next = hh->reloc_entries; |
15bda425 JL |
458 | rent->type = type; |
459 | rent->sec = sec; | |
460 | rent->sec_symndx = sec_symndx; | |
461 | rent->offset = offset; | |
462 | rent->addend = addend; | |
a03bd320 | 463 | hh->reloc_entries = rent; |
15bda425 | 464 | |
b34976b6 | 465 | return TRUE; |
15bda425 JL |
466 | } |
467 | ||
a03bd320 DA |
468 | /* Return a pointer to the local DLT, PLT and OPD reference counts |
469 | for ABFD. Returns NULL if the storage allocation fails. */ | |
470 | ||
471 | static bfd_signed_vma * | |
472 | hppa64_elf_local_refcounts (bfd *abfd) | |
473 | { | |
474 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
475 | bfd_signed_vma *local_refcounts; | |
68ffbac6 | 476 | |
a03bd320 DA |
477 | local_refcounts = elf_local_got_refcounts (abfd); |
478 | if (local_refcounts == NULL) | |
479 | { | |
480 | bfd_size_type size; | |
481 | ||
482 | /* Allocate space for local DLT, PLT and OPD reference | |
483 | counts. Done this way to save polluting elf_obj_tdata | |
484 | with another target specific pointer. */ | |
485 | size = symtab_hdr->sh_info; | |
486 | size *= 3 * sizeof (bfd_signed_vma); | |
487 | local_refcounts = bfd_zalloc (abfd, size); | |
488 | elf_local_got_refcounts (abfd) = local_refcounts; | |
489 | } | |
490 | return local_refcounts; | |
491 | } | |
492 | ||
15bda425 JL |
493 | /* Scan the RELOCS and record the type of dynamic entries that each |
494 | referenced symbol needs. */ | |
495 | ||
b34976b6 | 496 | static bfd_boolean |
813c8a3c DA |
497 | elf64_hppa_check_relocs (bfd *abfd, |
498 | struct bfd_link_info *info, | |
499 | asection *sec, | |
500 | const Elf_Internal_Rela *relocs) | |
15bda425 JL |
501 | { |
502 | struct elf64_hppa_link_hash_table *hppa_info; | |
503 | const Elf_Internal_Rela *relend; | |
504 | Elf_Internal_Shdr *symtab_hdr; | |
505 | const Elf_Internal_Rela *rel; | |
4fbb74a6 | 506 | unsigned int sec_symndx; |
15bda425 | 507 | |
1049f94e | 508 | if (info->relocatable) |
b34976b6 | 509 | return TRUE; |
15bda425 JL |
510 | |
511 | /* If this is the first dynamic object found in the link, create | |
512 | the special sections required for dynamic linking. */ | |
513 | if (! elf_hash_table (info)->dynamic_sections_created) | |
514 | { | |
45d6a902 | 515 | if (! _bfd_elf_link_create_dynamic_sections (abfd, info)) |
b34976b6 | 516 | return FALSE; |
15bda425 JL |
517 | } |
518 | ||
a03bd320 | 519 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
520 | if (hppa_info == NULL) |
521 | return FALSE; | |
15bda425 JL |
522 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
523 | ||
524 | /* If necessary, build a new table holding section symbols indices | |
6cdc0ccc | 525 | for this BFD. */ |
fe8bc63d | 526 | |
15bda425 JL |
527 | if (info->shared && hppa_info->section_syms_bfd != abfd) |
528 | { | |
832d951b | 529 | unsigned long i; |
9ad5cbcf | 530 | unsigned int highest_shndx; |
6cdc0ccc AM |
531 | Elf_Internal_Sym *local_syms = NULL; |
532 | Elf_Internal_Sym *isym, *isymend; | |
dc810e39 | 533 | bfd_size_type amt; |
15bda425 JL |
534 | |
535 | /* We're done with the old cache of section index to section symbol | |
536 | index information. Free it. | |
537 | ||
538 | ?!? Note we leak the last section_syms array. Presumably we | |
539 | could free it in one of the later routines in this file. */ | |
540 | if (hppa_info->section_syms) | |
541 | free (hppa_info->section_syms); | |
542 | ||
6cdc0ccc AM |
543 | /* Read this BFD's local symbols. */ |
544 | if (symtab_hdr->sh_info != 0) | |
47b7c2db | 545 | { |
6cdc0ccc AM |
546 | local_syms = (Elf_Internal_Sym *) symtab_hdr->contents; |
547 | if (local_syms == NULL) | |
548 | local_syms = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
549 | symtab_hdr->sh_info, 0, | |
550 | NULL, NULL, NULL); | |
551 | if (local_syms == NULL) | |
b34976b6 | 552 | return FALSE; |
9ad5cbcf AM |
553 | } |
554 | ||
6cdc0ccc | 555 | /* Record the highest section index referenced by the local symbols. */ |
15bda425 | 556 | highest_shndx = 0; |
6cdc0ccc AM |
557 | isymend = local_syms + symtab_hdr->sh_info; |
558 | for (isym = local_syms; isym < isymend; isym++) | |
15bda425 | 559 | { |
4fbb74a6 AM |
560 | if (isym->st_shndx > highest_shndx |
561 | && isym->st_shndx < SHN_LORESERVE) | |
15bda425 JL |
562 | highest_shndx = isym->st_shndx; |
563 | } | |
564 | ||
15bda425 JL |
565 | /* Allocate an array to hold the section index to section symbol index |
566 | mapping. Bump by one since we start counting at zero. */ | |
567 | highest_shndx++; | |
dc810e39 AM |
568 | amt = highest_shndx; |
569 | amt *= sizeof (int); | |
570 | hppa_info->section_syms = (int *) bfd_malloc (amt); | |
15bda425 JL |
571 | |
572 | /* Now walk the local symbols again. If we find a section symbol, | |
573 | record the index of the symbol into the section_syms array. */ | |
6cdc0ccc | 574 | for (i = 0, isym = local_syms; isym < isymend; i++, isym++) |
15bda425 JL |
575 | { |
576 | if (ELF_ST_TYPE (isym->st_info) == STT_SECTION) | |
577 | hppa_info->section_syms[isym->st_shndx] = i; | |
578 | } | |
579 | ||
6cdc0ccc AM |
580 | /* We are finished with the local symbols. */ |
581 | if (local_syms != NULL | |
582 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
583 | { | |
584 | if (! info->keep_memory) | |
585 | free (local_syms); | |
586 | else | |
587 | { | |
588 | /* Cache the symbols for elf_link_input_bfd. */ | |
589 | symtab_hdr->contents = (unsigned char *) local_syms; | |
590 | } | |
591 | } | |
15bda425 JL |
592 | |
593 | /* Record which BFD we built the section_syms mapping for. */ | |
594 | hppa_info->section_syms_bfd = abfd; | |
595 | } | |
596 | ||
597 | /* Record the symbol index for this input section. We may need it for | |
598 | relocations when building shared libraries. When not building shared | |
599 | libraries this value is never really used, but assign it to zero to | |
600 | prevent out of bounds memory accesses in other routines. */ | |
601 | if (info->shared) | |
602 | { | |
603 | sec_symndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
604 | ||
605 | /* If we did not find a section symbol for this section, then | |
606 | something went terribly wrong above. */ | |
4fbb74a6 | 607 | if (sec_symndx == SHN_BAD) |
b34976b6 | 608 | return FALSE; |
15bda425 | 609 | |
4fbb74a6 AM |
610 | if (sec_symndx < SHN_LORESERVE) |
611 | sec_symndx = hppa_info->section_syms[sec_symndx]; | |
612 | else | |
613 | sec_symndx = 0; | |
15bda425 JL |
614 | } |
615 | else | |
616 | sec_symndx = 0; | |
fe8bc63d | 617 | |
15bda425 JL |
618 | relend = relocs + sec->reloc_count; |
619 | for (rel = relocs; rel < relend; ++rel) | |
620 | { | |
560e09e9 NC |
621 | enum |
622 | { | |
623 | NEED_DLT = 1, | |
624 | NEED_PLT = 2, | |
625 | NEED_STUB = 4, | |
626 | NEED_OPD = 8, | |
627 | NEED_DYNREL = 16, | |
628 | }; | |
15bda425 | 629 | |
15bda425 | 630 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); |
a03bd320 | 631 | struct elf64_hppa_link_hash_entry *hh; |
15bda425 | 632 | int need_entry; |
b34976b6 | 633 | bfd_boolean maybe_dynamic; |
15bda425 JL |
634 | int dynrel_type = R_PARISC_NONE; |
635 | static reloc_howto_type *howto; | |
636 | ||
637 | if (r_symndx >= symtab_hdr->sh_info) | |
638 | { | |
639 | /* We're dealing with a global symbol -- find its hash entry | |
640 | and mark it as being referenced. */ | |
641 | long indx = r_symndx - symtab_hdr->sh_info; | |
a03bd320 DA |
642 | hh = hppa_elf_hash_entry (elf_sym_hashes (abfd)[indx]); |
643 | while (hh->eh.root.type == bfd_link_hash_indirect | |
644 | || hh->eh.root.type == bfd_link_hash_warning) | |
645 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
15bda425 | 646 | |
81fbe831 AM |
647 | /* PR15323, ref flags aren't set for references in the same |
648 | object. */ | |
649 | hh->eh.root.non_ir_ref = 1; | |
a03bd320 | 650 | hh->eh.ref_regular = 1; |
15bda425 | 651 | } |
a03bd320 DA |
652 | else |
653 | hh = NULL; | |
15bda425 JL |
654 | |
655 | /* We can only get preliminary data on whether a symbol is | |
656 | locally or externally defined, as not all of the input files | |
657 | have yet been processed. Do something with what we know, as | |
658 | this may help reduce memory usage and processing time later. */ | |
b34976b6 | 659 | maybe_dynamic = FALSE; |
a03bd320 | 660 | if (hh && ((info->shared |
f5385ebf AM |
661 | && (!info->symbolic |
662 | || info->unresolved_syms_in_shared_libs == RM_IGNORE)) | |
a03bd320 DA |
663 | || !hh->eh.def_regular |
664 | || hh->eh.root.type == bfd_link_hash_defweak)) | |
b34976b6 | 665 | maybe_dynamic = TRUE; |
15bda425 JL |
666 | |
667 | howto = elf_hppa_howto_table + ELF64_R_TYPE (rel->r_info); | |
668 | need_entry = 0; | |
669 | switch (howto->type) | |
670 | { | |
671 | /* These are simple indirect references to symbols through the | |
672 | DLT. We need to create a DLT entry for any symbols which | |
673 | appears in a DLTIND relocation. */ | |
674 | case R_PARISC_DLTIND21L: | |
675 | case R_PARISC_DLTIND14R: | |
676 | case R_PARISC_DLTIND14F: | |
677 | case R_PARISC_DLTIND14WR: | |
678 | case R_PARISC_DLTIND14DR: | |
679 | need_entry = NEED_DLT; | |
680 | break; | |
681 | ||
682 | /* ?!? These need a DLT entry. But I have no idea what to do with | |
683 | the "link time TP value. */ | |
684 | case R_PARISC_LTOFF_TP21L: | |
685 | case R_PARISC_LTOFF_TP14R: | |
686 | case R_PARISC_LTOFF_TP14F: | |
687 | case R_PARISC_LTOFF_TP64: | |
688 | case R_PARISC_LTOFF_TP14WR: | |
689 | case R_PARISC_LTOFF_TP14DR: | |
690 | case R_PARISC_LTOFF_TP16F: | |
691 | case R_PARISC_LTOFF_TP16WF: | |
692 | case R_PARISC_LTOFF_TP16DF: | |
693 | need_entry = NEED_DLT; | |
694 | break; | |
695 | ||
696 | /* These are function calls. Depending on their precise target we | |
697 | may need to make a stub for them. The stub uses the PLT, so we | |
698 | need to create PLT entries for these symbols too. */ | |
832d951b | 699 | case R_PARISC_PCREL12F: |
15bda425 JL |
700 | case R_PARISC_PCREL17F: |
701 | case R_PARISC_PCREL22F: | |
702 | case R_PARISC_PCREL32: | |
703 | case R_PARISC_PCREL64: | |
704 | case R_PARISC_PCREL21L: | |
705 | case R_PARISC_PCREL17R: | |
706 | case R_PARISC_PCREL17C: | |
707 | case R_PARISC_PCREL14R: | |
708 | case R_PARISC_PCREL14F: | |
709 | case R_PARISC_PCREL22C: | |
710 | case R_PARISC_PCREL14WR: | |
711 | case R_PARISC_PCREL14DR: | |
712 | case R_PARISC_PCREL16F: | |
713 | case R_PARISC_PCREL16WF: | |
714 | case R_PARISC_PCREL16DF: | |
a03bd320 DA |
715 | /* Function calls might need to go through the .plt, and |
716 | might need a long branch stub. */ | |
717 | if (hh != NULL && hh->eh.type != STT_PARISC_MILLI) | |
718 | need_entry = (NEED_PLT | NEED_STUB); | |
719 | else | |
720 | need_entry = 0; | |
15bda425 JL |
721 | break; |
722 | ||
723 | case R_PARISC_PLTOFF21L: | |
724 | case R_PARISC_PLTOFF14R: | |
725 | case R_PARISC_PLTOFF14F: | |
726 | case R_PARISC_PLTOFF14WR: | |
727 | case R_PARISC_PLTOFF14DR: | |
728 | case R_PARISC_PLTOFF16F: | |
729 | case R_PARISC_PLTOFF16WF: | |
730 | case R_PARISC_PLTOFF16DF: | |
731 | need_entry = (NEED_PLT); | |
732 | break; | |
733 | ||
734 | case R_PARISC_DIR64: | |
735 | if (info->shared || maybe_dynamic) | |
736 | need_entry = (NEED_DYNREL); | |
737 | dynrel_type = R_PARISC_DIR64; | |
738 | break; | |
739 | ||
740 | /* This is an indirect reference through the DLT to get the address | |
741 | of a OPD descriptor. Thus we need to make a DLT entry that points | |
742 | to an OPD entry. */ | |
743 | case R_PARISC_LTOFF_FPTR21L: | |
744 | case R_PARISC_LTOFF_FPTR14R: | |
745 | case R_PARISC_LTOFF_FPTR14WR: | |
746 | case R_PARISC_LTOFF_FPTR14DR: | |
747 | case R_PARISC_LTOFF_FPTR32: | |
748 | case R_PARISC_LTOFF_FPTR64: | |
749 | case R_PARISC_LTOFF_FPTR16F: | |
750 | case R_PARISC_LTOFF_FPTR16WF: | |
751 | case R_PARISC_LTOFF_FPTR16DF: | |
752 | if (info->shared || maybe_dynamic) | |
a03bd320 | 753 | need_entry = (NEED_DLT | NEED_OPD | NEED_PLT); |
15bda425 | 754 | else |
a03bd320 | 755 | need_entry = (NEED_DLT | NEED_OPD | NEED_PLT); |
15bda425 JL |
756 | dynrel_type = R_PARISC_FPTR64; |
757 | break; | |
758 | ||
759 | /* This is a simple OPD entry. */ | |
760 | case R_PARISC_FPTR64: | |
761 | if (info->shared || maybe_dynamic) | |
a03bd320 | 762 | need_entry = (NEED_OPD | NEED_PLT | NEED_DYNREL); |
15bda425 | 763 | else |
a03bd320 | 764 | need_entry = (NEED_OPD | NEED_PLT); |
15bda425 JL |
765 | dynrel_type = R_PARISC_FPTR64; |
766 | break; | |
767 | ||
768 | /* Add more cases as needed. */ | |
769 | } | |
770 | ||
771 | if (!need_entry) | |
772 | continue; | |
773 | ||
a03bd320 DA |
774 | if (hh) |
775 | { | |
776 | /* Stash away enough information to be able to find this symbol | |
777 | regardless of whether or not it is local or global. */ | |
778 | hh->owner = abfd; | |
779 | hh->sym_indx = r_symndx; | |
780 | } | |
15bda425 | 781 | |
15bda425 JL |
782 | /* Create what's needed. */ |
783 | if (need_entry & NEED_DLT) | |
784 | { | |
a03bd320 DA |
785 | /* Allocate space for a DLT entry, as well as a dynamic |
786 | relocation for this entry. */ | |
15bda425 JL |
787 | if (! hppa_info->dlt_sec |
788 | && ! get_dlt (abfd, info, hppa_info)) | |
789 | goto err_out; | |
a03bd320 DA |
790 | |
791 | if (hh != NULL) | |
792 | { | |
793 | hh->want_dlt = 1; | |
794 | hh->eh.got.refcount += 1; | |
795 | } | |
796 | else | |
797 | { | |
798 | bfd_signed_vma *local_dlt_refcounts; | |
68ffbac6 | 799 | |
a03bd320 DA |
800 | /* This is a DLT entry for a local symbol. */ |
801 | local_dlt_refcounts = hppa64_elf_local_refcounts (abfd); | |
802 | if (local_dlt_refcounts == NULL) | |
803 | return FALSE; | |
804 | local_dlt_refcounts[r_symndx] += 1; | |
805 | } | |
15bda425 JL |
806 | } |
807 | ||
808 | if (need_entry & NEED_PLT) | |
809 | { | |
810 | if (! hppa_info->plt_sec | |
811 | && ! get_plt (abfd, info, hppa_info)) | |
812 | goto err_out; | |
a03bd320 DA |
813 | |
814 | if (hh != NULL) | |
815 | { | |
816 | hh->want_plt = 1; | |
817 | hh->eh.needs_plt = 1; | |
818 | hh->eh.plt.refcount += 1; | |
819 | } | |
820 | else | |
821 | { | |
822 | bfd_signed_vma *local_dlt_refcounts; | |
823 | bfd_signed_vma *local_plt_refcounts; | |
68ffbac6 | 824 | |
a03bd320 DA |
825 | /* This is a PLT entry for a local symbol. */ |
826 | local_dlt_refcounts = hppa64_elf_local_refcounts (abfd); | |
827 | if (local_dlt_refcounts == NULL) | |
828 | return FALSE; | |
829 | local_plt_refcounts = local_dlt_refcounts + symtab_hdr->sh_info; | |
830 | local_plt_refcounts[r_symndx] += 1; | |
831 | } | |
15bda425 JL |
832 | } |
833 | ||
834 | if (need_entry & NEED_STUB) | |
835 | { | |
836 | if (! hppa_info->stub_sec | |
837 | && ! get_stub (abfd, info, hppa_info)) | |
838 | goto err_out; | |
a03bd320 DA |
839 | if (hh) |
840 | hh->want_stub = 1; | |
15bda425 JL |
841 | } |
842 | ||
843 | if (need_entry & NEED_OPD) | |
844 | { | |
845 | if (! hppa_info->opd_sec | |
846 | && ! get_opd (abfd, info, hppa_info)) | |
847 | goto err_out; | |
848 | ||
a03bd320 DA |
849 | /* FPTRs are not allocated by the dynamic linker for PA64, |
850 | though it is possible that will change in the future. */ | |
fe8bc63d | 851 | |
a03bd320 DA |
852 | if (hh != NULL) |
853 | hh->want_opd = 1; | |
854 | else | |
855 | { | |
856 | bfd_signed_vma *local_dlt_refcounts; | |
857 | bfd_signed_vma *local_opd_refcounts; | |
68ffbac6 | 858 | |
a03bd320 DA |
859 | /* This is a OPD for a local symbol. */ |
860 | local_dlt_refcounts = hppa64_elf_local_refcounts (abfd); | |
861 | if (local_dlt_refcounts == NULL) | |
862 | return FALSE; | |
863 | local_opd_refcounts = (local_dlt_refcounts | |
864 | + 2 * symtab_hdr->sh_info); | |
865 | local_opd_refcounts[r_symndx] += 1; | |
866 | } | |
15bda425 JL |
867 | } |
868 | ||
869 | /* Add a new dynamic relocation to the chain of dynamic | |
870 | relocations for this symbol. */ | |
871 | if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC)) | |
872 | { | |
873 | if (! hppa_info->other_rel_sec | |
874 | && ! get_reloc_section (abfd, hppa_info, sec)) | |
875 | goto err_out; | |
876 | ||
a03bd320 DA |
877 | /* Count dynamic relocations against global symbols. */ |
878 | if (hh != NULL | |
879 | && !count_dyn_reloc (abfd, hh, dynrel_type, sec, | |
880 | sec_symndx, rel->r_offset, rel->r_addend)) | |
15bda425 JL |
881 | goto err_out; |
882 | ||
883 | /* If we are building a shared library and we just recorded | |
884 | a dynamic R_PARISC_FPTR64 relocation, then make sure the | |
885 | section symbol for this section ends up in the dynamic | |
886 | symbol table. */ | |
887 | if (info->shared && dynrel_type == R_PARISC_FPTR64 | |
c152c796 | 888 | && ! (bfd_elf_link_record_local_dynamic_symbol |
15bda425 | 889 | (info, abfd, sec_symndx))) |
b34976b6 | 890 | return FALSE; |
15bda425 JL |
891 | } |
892 | } | |
893 | ||
b34976b6 | 894 | return TRUE; |
15bda425 JL |
895 | |
896 | err_out: | |
b34976b6 | 897 | return FALSE; |
15bda425 JL |
898 | } |
899 | ||
900 | struct elf64_hppa_allocate_data | |
901 | { | |
902 | struct bfd_link_info *info; | |
903 | bfd_size_type ofs; | |
904 | }; | |
905 | ||
906 | /* Should we do dynamic things to this symbol? */ | |
907 | ||
b34976b6 | 908 | static bfd_boolean |
a03bd320 | 909 | elf64_hppa_dynamic_symbol_p (struct elf_link_hash_entry *eh, |
813c8a3c | 910 | struct bfd_link_info *info) |
15bda425 | 911 | { |
986a241f RH |
912 | /* ??? What, if anything, needs to happen wrt STV_PROTECTED symbols |
913 | and relocations that retrieve a function descriptor? Assume the | |
914 | worst for now. */ | |
a03bd320 | 915 | if (_bfd_elf_dynamic_symbol_p (eh, info, 1)) |
986a241f RH |
916 | { |
917 | /* ??? Why is this here and not elsewhere is_local_label_name. */ | |
a03bd320 | 918 | if (eh->root.root.string[0] == '$' && eh->root.root.string[1] == '$') |
986a241f | 919 | return FALSE; |
15bda425 | 920 | |
986a241f RH |
921 | return TRUE; |
922 | } | |
923 | else | |
b34976b6 | 924 | return FALSE; |
15bda425 JL |
925 | } |
926 | ||
4cc11e76 | 927 | /* Mark all functions exported by this file so that we can later allocate |
15bda425 JL |
928 | entries in .opd for them. */ |
929 | ||
b34976b6 | 930 | static bfd_boolean |
a03bd320 | 931 | elf64_hppa_mark_exported_functions (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 932 | { |
a03bd320 | 933 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
934 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
935 | struct elf64_hppa_link_hash_table *hppa_info; | |
936 | ||
a03bd320 | 937 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
938 | if (hppa_info == NULL) |
939 | return FALSE; | |
15bda425 | 940 | |
a03bd320 DA |
941 | if (eh |
942 | && (eh->root.type == bfd_link_hash_defined | |
943 | || eh->root.type == bfd_link_hash_defweak) | |
944 | && eh->root.u.def.section->output_section != NULL | |
945 | && eh->type == STT_FUNC) | |
15bda425 | 946 | { |
15bda425 JL |
947 | if (! hppa_info->opd_sec |
948 | && ! get_opd (hppa_info->root.dynobj, info, hppa_info)) | |
b34976b6 | 949 | return FALSE; |
15bda425 | 950 | |
a03bd320 DA |
951 | hh->want_opd = 1; |
952 | ||
832d951b | 953 | /* Put a flag here for output_symbol_hook. */ |
a03bd320 DA |
954 | hh->st_shndx = -1; |
955 | eh->needs_plt = 1; | |
15bda425 JL |
956 | } |
957 | ||
b34976b6 | 958 | return TRUE; |
15bda425 JL |
959 | } |
960 | ||
961 | /* Allocate space for a DLT entry. */ | |
962 | ||
b34976b6 | 963 | static bfd_boolean |
a03bd320 | 964 | allocate_global_data_dlt (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 965 | { |
a03bd320 | 966 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
967 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
968 | ||
a03bd320 | 969 | if (hh->want_dlt) |
15bda425 | 970 | { |
15bda425 JL |
971 | if (x->info->shared) |
972 | { | |
973 | /* Possibly add the symbol to the local dynamic symbol | |
974 | table since we might need to create a dynamic relocation | |
975 | against it. */ | |
a03bd320 | 976 | if (eh->dynindx == -1 && eh->type != STT_PARISC_MILLI) |
15bda425 | 977 | { |
a03bd320 | 978 | bfd *owner = eh->root.u.def.section->owner; |
15bda425 | 979 | |
c152c796 | 980 | if (! (bfd_elf_link_record_local_dynamic_symbol |
a03bd320 | 981 | (x->info, owner, hh->sym_indx))) |
b34976b6 | 982 | return FALSE; |
15bda425 JL |
983 | } |
984 | } | |
985 | ||
a03bd320 | 986 | hh->dlt_offset = x->ofs; |
15bda425 JL |
987 | x->ofs += DLT_ENTRY_SIZE; |
988 | } | |
b34976b6 | 989 | return TRUE; |
15bda425 JL |
990 | } |
991 | ||
992 | /* Allocate space for a DLT.PLT entry. */ | |
993 | ||
b34976b6 | 994 | static bfd_boolean |
a03bd320 | 995 | allocate_global_data_plt (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 996 | { |
a03bd320 | 997 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
4dfe6ac6 | 998 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *) data; |
15bda425 | 999 | |
a03bd320 DA |
1000 | if (hh->want_plt |
1001 | && elf64_hppa_dynamic_symbol_p (eh, x->info) | |
1002 | && !((eh->root.type == bfd_link_hash_defined | |
1003 | || eh->root.type == bfd_link_hash_defweak) | |
1004 | && eh->root.u.def.section->output_section != NULL)) | |
15bda425 | 1005 | { |
a03bd320 | 1006 | hh->plt_offset = x->ofs; |
15bda425 | 1007 | x->ofs += PLT_ENTRY_SIZE; |
a03bd320 | 1008 | if (hh->plt_offset < 0x2000) |
4dfe6ac6 NC |
1009 | { |
1010 | struct elf64_hppa_link_hash_table *hppa_info; | |
1011 | ||
1012 | hppa_info = hppa_link_hash_table (x->info); | |
1013 | if (hppa_info == NULL) | |
1014 | return FALSE; | |
1015 | ||
1016 | hppa_info->gp_offset = hh->plt_offset; | |
1017 | } | |
15bda425 JL |
1018 | } |
1019 | else | |
a03bd320 | 1020 | hh->want_plt = 0; |
15bda425 | 1021 | |
b34976b6 | 1022 | return TRUE; |
15bda425 JL |
1023 | } |
1024 | ||
1025 | /* Allocate space for a STUB entry. */ | |
1026 | ||
b34976b6 | 1027 | static bfd_boolean |
a03bd320 | 1028 | allocate_global_data_stub (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 1029 | { |
a03bd320 | 1030 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1031 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
1032 | ||
a03bd320 DA |
1033 | if (hh->want_stub |
1034 | && elf64_hppa_dynamic_symbol_p (eh, x->info) | |
1035 | && !((eh->root.type == bfd_link_hash_defined | |
1036 | || eh->root.type == bfd_link_hash_defweak) | |
1037 | && eh->root.u.def.section->output_section != NULL)) | |
15bda425 | 1038 | { |
a03bd320 | 1039 | hh->stub_offset = x->ofs; |
15bda425 JL |
1040 | x->ofs += sizeof (plt_stub); |
1041 | } | |
1042 | else | |
a03bd320 | 1043 | hh->want_stub = 0; |
b34976b6 | 1044 | return TRUE; |
15bda425 JL |
1045 | } |
1046 | ||
1047 | /* Allocate space for a FPTR entry. */ | |
1048 | ||
b34976b6 | 1049 | static bfd_boolean |
a03bd320 | 1050 | allocate_global_data_opd (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 1051 | { |
a03bd320 | 1052 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1053 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
1054 | ||
a03bd320 | 1055 | if (hh && hh->want_opd) |
15bda425 | 1056 | { |
15bda425 JL |
1057 | /* We never need an opd entry for a symbol which is not |
1058 | defined by this output file. */ | |
a03bd320 DA |
1059 | if (hh && (hh->eh.root.type == bfd_link_hash_undefined |
1060 | || hh->eh.root.type == bfd_link_hash_undefweak | |
1061 | || hh->eh.root.u.def.section->output_section == NULL)) | |
1062 | hh->want_opd = 0; | |
15bda425 JL |
1063 | |
1064 | /* If we are creating a shared library, took the address of a local | |
1065 | function or might export this function from this object file, then | |
1066 | we have to create an opd descriptor. */ | |
1067 | else if (x->info->shared | |
a03bd320 DA |
1068 | || hh == NULL |
1069 | || (hh->eh.dynindx == -1 && hh->eh.type != STT_PARISC_MILLI) | |
1070 | || (hh->eh.root.type == bfd_link_hash_defined | |
1071 | || hh->eh.root.type == bfd_link_hash_defweak)) | |
15bda425 JL |
1072 | { |
1073 | /* If we are creating a shared library, then we will have to | |
1074 | create a runtime relocation for the symbol to properly | |
1075 | initialize the .opd entry. Make sure the symbol gets | |
1076 | added to the dynamic symbol table. */ | |
1077 | if (x->info->shared | |
a03bd320 | 1078 | && (hh == NULL || (hh->eh.dynindx == -1))) |
15bda425 JL |
1079 | { |
1080 | bfd *owner; | |
adfef0bd | 1081 | /* PR 6511: Default to using the dynamic symbol table. */ |
a03bd320 | 1082 | owner = (hh->owner ? hh->owner: eh->root.u.def.section->owner); |
15bda425 | 1083 | |
c152c796 | 1084 | if (!bfd_elf_link_record_local_dynamic_symbol |
a03bd320 | 1085 | (x->info, owner, hh->sym_indx)) |
b34976b6 | 1086 | return FALSE; |
15bda425 JL |
1087 | } |
1088 | ||
1089 | /* This may not be necessary or desirable anymore now that | |
1090 | we have some support for dealing with section symbols | |
1091 | in dynamic relocs. But name munging does make the result | |
1092 | much easier to debug. ie, the EPLT reloc will reference | |
1093 | a symbol like .foobar, instead of .text + offset. */ | |
a03bd320 | 1094 | if (x->info->shared && eh) |
15bda425 JL |
1095 | { |
1096 | char *new_name; | |
1097 | struct elf_link_hash_entry *nh; | |
1098 | ||
a03bd320 | 1099 | new_name = alloca (strlen (eh->root.root.string) + 2); |
15bda425 | 1100 | new_name[0] = '.'; |
a03bd320 | 1101 | strcpy (new_name + 1, eh->root.root.string); |
15bda425 JL |
1102 | |
1103 | nh = elf_link_hash_lookup (elf_hash_table (x->info), | |
b34976b6 | 1104 | new_name, TRUE, TRUE, TRUE); |
15bda425 | 1105 | |
a03bd320 DA |
1106 | nh->root.type = eh->root.type; |
1107 | nh->root.u.def.value = eh->root.u.def.value; | |
1108 | nh->root.u.def.section = eh->root.u.def.section; | |
15bda425 | 1109 | |
c152c796 | 1110 | if (! bfd_elf_link_record_dynamic_symbol (x->info, nh)) |
b34976b6 | 1111 | return FALSE; |
15bda425 JL |
1112 | |
1113 | } | |
a03bd320 | 1114 | hh->opd_offset = x->ofs; |
15bda425 JL |
1115 | x->ofs += OPD_ENTRY_SIZE; |
1116 | } | |
1117 | ||
1118 | /* Otherwise we do not need an opd entry. */ | |
1119 | else | |
a03bd320 | 1120 | hh->want_opd = 0; |
15bda425 | 1121 | } |
b34976b6 | 1122 | return TRUE; |
15bda425 JL |
1123 | } |
1124 | ||
1125 | /* HP requires the EI_OSABI field to be filled in. The assignment to | |
1126 | EI_ABIVERSION may not be strictly necessary. */ | |
1127 | ||
1128 | static void | |
813c8a3c DA |
1129 | elf64_hppa_post_process_headers (bfd *abfd, |
1130 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED) | |
15bda425 JL |
1131 | { |
1132 | Elf_Internal_Ehdr * i_ehdrp; | |
1133 | ||
1134 | i_ehdrp = elf_elfheader (abfd); | |
68ffbac6 | 1135 | |
d1036acb L |
1136 | i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi; |
1137 | i_ehdrp->e_ident[EI_ABIVERSION] = 1; | |
15bda425 JL |
1138 | } |
1139 | ||
1140 | /* Create function descriptor section (.opd). This section is called .opd | |
4cc11e76 | 1141 | because it contains "official procedure descriptors". The "official" |
15bda425 JL |
1142 | refers to the fact that these descriptors are used when taking the address |
1143 | of a procedure, thus ensuring a unique address for each procedure. */ | |
1144 | ||
b34976b6 | 1145 | static bfd_boolean |
813c8a3c DA |
1146 | get_opd (bfd *abfd, |
1147 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1148 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1149 | { |
1150 | asection *opd; | |
1151 | bfd *dynobj; | |
1152 | ||
1153 | opd = hppa_info->opd_sec; | |
1154 | if (!opd) | |
1155 | { | |
1156 | dynobj = hppa_info->root.dynobj; | |
1157 | if (!dynobj) | |
1158 | hppa_info->root.dynobj = dynobj = abfd; | |
1159 | ||
3d4d4302 AM |
1160 | opd = bfd_make_section_anyway_with_flags (dynobj, ".opd", |
1161 | (SEC_ALLOC | |
1162 | | SEC_LOAD | |
1163 | | SEC_HAS_CONTENTS | |
1164 | | SEC_IN_MEMORY | |
1165 | | SEC_LINKER_CREATED)); | |
15bda425 | 1166 | if (!opd |
15bda425 JL |
1167 | || !bfd_set_section_alignment (abfd, opd, 3)) |
1168 | { | |
1169 | BFD_ASSERT (0); | |
b34976b6 | 1170 | return FALSE; |
15bda425 JL |
1171 | } |
1172 | ||
1173 | hppa_info->opd_sec = opd; | |
1174 | } | |
1175 | ||
b34976b6 | 1176 | return TRUE; |
15bda425 JL |
1177 | } |
1178 | ||
1179 | /* Create the PLT section. */ | |
1180 | ||
b34976b6 | 1181 | static bfd_boolean |
813c8a3c DA |
1182 | get_plt (bfd *abfd, |
1183 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1184 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1185 | { |
1186 | asection *plt; | |
1187 | bfd *dynobj; | |
1188 | ||
1189 | plt = hppa_info->plt_sec; | |
1190 | if (!plt) | |
1191 | { | |
1192 | dynobj = hppa_info->root.dynobj; | |
1193 | if (!dynobj) | |
1194 | hppa_info->root.dynobj = dynobj = abfd; | |
1195 | ||
3d4d4302 AM |
1196 | plt = bfd_make_section_anyway_with_flags (dynobj, ".plt", |
1197 | (SEC_ALLOC | |
1198 | | SEC_LOAD | |
1199 | | SEC_HAS_CONTENTS | |
1200 | | SEC_IN_MEMORY | |
1201 | | SEC_LINKER_CREATED)); | |
15bda425 | 1202 | if (!plt |
15bda425 JL |
1203 | || !bfd_set_section_alignment (abfd, plt, 3)) |
1204 | { | |
1205 | BFD_ASSERT (0); | |
b34976b6 | 1206 | return FALSE; |
15bda425 JL |
1207 | } |
1208 | ||
1209 | hppa_info->plt_sec = plt; | |
1210 | } | |
1211 | ||
b34976b6 | 1212 | return TRUE; |
15bda425 JL |
1213 | } |
1214 | ||
1215 | /* Create the DLT section. */ | |
1216 | ||
b34976b6 | 1217 | static bfd_boolean |
813c8a3c DA |
1218 | get_dlt (bfd *abfd, |
1219 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1220 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1221 | { |
1222 | asection *dlt; | |
1223 | bfd *dynobj; | |
1224 | ||
1225 | dlt = hppa_info->dlt_sec; | |
1226 | if (!dlt) | |
1227 | { | |
1228 | dynobj = hppa_info->root.dynobj; | |
1229 | if (!dynobj) | |
1230 | hppa_info->root.dynobj = dynobj = abfd; | |
1231 | ||
3d4d4302 AM |
1232 | dlt = bfd_make_section_anyway_with_flags (dynobj, ".dlt", |
1233 | (SEC_ALLOC | |
1234 | | SEC_LOAD | |
1235 | | SEC_HAS_CONTENTS | |
1236 | | SEC_IN_MEMORY | |
1237 | | SEC_LINKER_CREATED)); | |
15bda425 | 1238 | if (!dlt |
15bda425 JL |
1239 | || !bfd_set_section_alignment (abfd, dlt, 3)) |
1240 | { | |
1241 | BFD_ASSERT (0); | |
b34976b6 | 1242 | return FALSE; |
15bda425 JL |
1243 | } |
1244 | ||
1245 | hppa_info->dlt_sec = dlt; | |
1246 | } | |
1247 | ||
b34976b6 | 1248 | return TRUE; |
15bda425 JL |
1249 | } |
1250 | ||
1251 | /* Create the stubs section. */ | |
1252 | ||
b34976b6 | 1253 | static bfd_boolean |
813c8a3c DA |
1254 | get_stub (bfd *abfd, |
1255 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1256 | struct elf64_hppa_link_hash_table *hppa_info) | |
15bda425 JL |
1257 | { |
1258 | asection *stub; | |
1259 | bfd *dynobj; | |
1260 | ||
1261 | stub = hppa_info->stub_sec; | |
1262 | if (!stub) | |
1263 | { | |
1264 | dynobj = hppa_info->root.dynobj; | |
1265 | if (!dynobj) | |
1266 | hppa_info->root.dynobj = dynobj = abfd; | |
1267 | ||
3d4d4302 AM |
1268 | stub = bfd_make_section_anyway_with_flags (dynobj, ".stub", |
1269 | (SEC_ALLOC | SEC_LOAD | |
1270 | | SEC_HAS_CONTENTS | |
1271 | | SEC_IN_MEMORY | |
1272 | | SEC_READONLY | |
1273 | | SEC_LINKER_CREATED)); | |
15bda425 | 1274 | if (!stub |
15bda425 JL |
1275 | || !bfd_set_section_alignment (abfd, stub, 3)) |
1276 | { | |
1277 | BFD_ASSERT (0); | |
b34976b6 | 1278 | return FALSE; |
15bda425 JL |
1279 | } |
1280 | ||
1281 | hppa_info->stub_sec = stub; | |
1282 | } | |
1283 | ||
b34976b6 | 1284 | return TRUE; |
15bda425 JL |
1285 | } |
1286 | ||
1287 | /* Create sections necessary for dynamic linking. This is only a rough | |
1288 | cut and will likely change as we learn more about the somewhat | |
1289 | unusual dynamic linking scheme HP uses. | |
1290 | ||
1291 | .stub: | |
1292 | Contains code to implement cross-space calls. The first time one | |
1293 | of the stubs is used it will call into the dynamic linker, later | |
1294 | calls will go straight to the target. | |
1295 | ||
1296 | The only stub we support right now looks like | |
1297 | ||
1298 | ldd OFFSET(%dp),%r1 | |
1299 | bve %r0(%r1) | |
1300 | ldd OFFSET+8(%dp),%dp | |
1301 | ||
1302 | Other stubs may be needed in the future. We may want the remove | |
1303 | the break/nop instruction. It is only used right now to keep the | |
1304 | offset of a .plt entry and a .stub entry in sync. | |
1305 | ||
1306 | .dlt: | |
1307 | This is what most people call the .got. HP used a different name. | |
1308 | Losers. | |
1309 | ||
1310 | .rela.dlt: | |
1311 | Relocations for the DLT. | |
1312 | ||
1313 | .plt: | |
1314 | Function pointers as address,gp pairs. | |
1315 | ||
1316 | .rela.plt: | |
1317 | Should contain dynamic IPLT (and EPLT?) relocations. | |
1318 | ||
1319 | .opd: | |
fe8bc63d | 1320 | FPTRS |
15bda425 JL |
1321 | |
1322 | .rela.opd: | |
1323 | EPLT relocations for symbols exported from shared libraries. */ | |
1324 | ||
b34976b6 | 1325 | static bfd_boolean |
813c8a3c DA |
1326 | elf64_hppa_create_dynamic_sections (bfd *abfd, |
1327 | struct bfd_link_info *info) | |
15bda425 JL |
1328 | { |
1329 | asection *s; | |
4dfe6ac6 NC |
1330 | struct elf64_hppa_link_hash_table *hppa_info; |
1331 | ||
1332 | hppa_info = hppa_link_hash_table (info); | |
1333 | if (hppa_info == NULL) | |
1334 | return FALSE; | |
15bda425 | 1335 | |
4dfe6ac6 | 1336 | if (! get_stub (abfd, info, hppa_info)) |
b34976b6 | 1337 | return FALSE; |
15bda425 | 1338 | |
4dfe6ac6 | 1339 | if (! get_dlt (abfd, info, hppa_info)) |
b34976b6 | 1340 | return FALSE; |
15bda425 | 1341 | |
4dfe6ac6 | 1342 | if (! get_plt (abfd, info, hppa_info)) |
b34976b6 | 1343 | return FALSE; |
15bda425 | 1344 | |
4dfe6ac6 | 1345 | if (! get_opd (abfd, info, hppa_info)) |
b34976b6 | 1346 | return FALSE; |
15bda425 | 1347 | |
3d4d4302 AM |
1348 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.dlt", |
1349 | (SEC_ALLOC | SEC_LOAD | |
1350 | | SEC_HAS_CONTENTS | |
1351 | | SEC_IN_MEMORY | |
1352 | | SEC_READONLY | |
1353 | | SEC_LINKER_CREATED)); | |
15bda425 | 1354 | if (s == NULL |
15bda425 | 1355 | || !bfd_set_section_alignment (abfd, s, 3)) |
b34976b6 | 1356 | return FALSE; |
4dfe6ac6 | 1357 | hppa_info->dlt_rel_sec = s; |
15bda425 | 1358 | |
3d4d4302 AM |
1359 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.plt", |
1360 | (SEC_ALLOC | SEC_LOAD | |
1361 | | SEC_HAS_CONTENTS | |
1362 | | SEC_IN_MEMORY | |
1363 | | SEC_READONLY | |
1364 | | SEC_LINKER_CREATED)); | |
15bda425 | 1365 | if (s == NULL |
15bda425 | 1366 | || !bfd_set_section_alignment (abfd, s, 3)) |
b34976b6 | 1367 | return FALSE; |
4dfe6ac6 | 1368 | hppa_info->plt_rel_sec = s; |
15bda425 | 1369 | |
3d4d4302 AM |
1370 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.data", |
1371 | (SEC_ALLOC | SEC_LOAD | |
1372 | | SEC_HAS_CONTENTS | |
1373 | | SEC_IN_MEMORY | |
1374 | | SEC_READONLY | |
1375 | | SEC_LINKER_CREATED)); | |
15bda425 | 1376 | if (s == NULL |
15bda425 | 1377 | || !bfd_set_section_alignment (abfd, s, 3)) |
b34976b6 | 1378 | return FALSE; |
4dfe6ac6 | 1379 | hppa_info->other_rel_sec = s; |
15bda425 | 1380 | |
3d4d4302 AM |
1381 | s = bfd_make_section_anyway_with_flags (abfd, ".rela.opd", |
1382 | (SEC_ALLOC | SEC_LOAD | |
1383 | | SEC_HAS_CONTENTS | |
1384 | | SEC_IN_MEMORY | |
1385 | | SEC_READONLY | |
1386 | | SEC_LINKER_CREATED)); | |
15bda425 | 1387 | if (s == NULL |
15bda425 | 1388 | || !bfd_set_section_alignment (abfd, s, 3)) |
b34976b6 | 1389 | return FALSE; |
4dfe6ac6 | 1390 | hppa_info->opd_rel_sec = s; |
15bda425 | 1391 | |
b34976b6 | 1392 | return TRUE; |
15bda425 JL |
1393 | } |
1394 | ||
1395 | /* Allocate dynamic relocations for those symbols that turned out | |
1396 | to be dynamic. */ | |
1397 | ||
b34976b6 | 1398 | static bfd_boolean |
a03bd320 | 1399 | allocate_dynrel_entries (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 1400 | { |
a03bd320 | 1401 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1402 | struct elf64_hppa_allocate_data *x = (struct elf64_hppa_allocate_data *)data; |
1403 | struct elf64_hppa_link_hash_table *hppa_info; | |
1404 | struct elf64_hppa_dyn_reloc_entry *rent; | |
b34976b6 | 1405 | bfd_boolean dynamic_symbol, shared; |
15bda425 | 1406 | |
a03bd320 | 1407 | hppa_info = hppa_link_hash_table (x->info); |
4dfe6ac6 NC |
1408 | if (hppa_info == NULL) |
1409 | return FALSE; | |
1410 | ||
a03bd320 | 1411 | dynamic_symbol = elf64_hppa_dynamic_symbol_p (eh, x->info); |
15bda425 JL |
1412 | shared = x->info->shared; |
1413 | ||
1414 | /* We may need to allocate relocations for a non-dynamic symbol | |
1415 | when creating a shared library. */ | |
1416 | if (!dynamic_symbol && !shared) | |
b34976b6 | 1417 | return TRUE; |
15bda425 JL |
1418 | |
1419 | /* Take care of the normal data relocations. */ | |
1420 | ||
a03bd320 | 1421 | for (rent = hh->reloc_entries; rent; rent = rent->next) |
15bda425 | 1422 | { |
d663e1cd JL |
1423 | /* Allocate one iff we are building a shared library, the relocation |
1424 | isn't a R_PARISC_FPTR64, or we don't want an opd entry. */ | |
a03bd320 | 1425 | if (!shared && rent->type == R_PARISC_FPTR64 && hh->want_opd) |
d663e1cd JL |
1426 | continue; |
1427 | ||
eea6121a | 1428 | hppa_info->other_rel_sec->size += sizeof (Elf64_External_Rela); |
15bda425 JL |
1429 | |
1430 | /* Make sure this symbol gets into the dynamic symbol table if it is | |
1431 | not already recorded. ?!? This should not be in the loop since | |
1432 | the symbol need only be added once. */ | |
a03bd320 | 1433 | if (eh->dynindx == -1 && eh->type != STT_PARISC_MILLI) |
c152c796 | 1434 | if (!bfd_elf_link_record_local_dynamic_symbol |
a03bd320 | 1435 | (x->info, rent->sec->owner, hh->sym_indx)) |
b34976b6 | 1436 | return FALSE; |
15bda425 JL |
1437 | } |
1438 | ||
1439 | /* Take care of the GOT and PLT relocations. */ | |
1440 | ||
a03bd320 | 1441 | if ((dynamic_symbol || shared) && hh->want_dlt) |
eea6121a | 1442 | hppa_info->dlt_rel_sec->size += sizeof (Elf64_External_Rela); |
15bda425 JL |
1443 | |
1444 | /* If we are building a shared library, then every symbol that has an | |
1445 | opd entry will need an EPLT relocation to relocate the symbol's address | |
1446 | and __gp value based on the runtime load address. */ | |
a03bd320 | 1447 | if (shared && hh->want_opd) |
eea6121a | 1448 | hppa_info->opd_rel_sec->size += sizeof (Elf64_External_Rela); |
15bda425 | 1449 | |
a03bd320 | 1450 | if (hh->want_plt && dynamic_symbol) |
15bda425 JL |
1451 | { |
1452 | bfd_size_type t = 0; | |
1453 | ||
1454 | /* Dynamic symbols get one IPLT relocation. Local symbols in | |
1455 | shared libraries get two REL relocations. Local symbols in | |
1456 | main applications get nothing. */ | |
1457 | if (dynamic_symbol) | |
1458 | t = sizeof (Elf64_External_Rela); | |
1459 | else if (shared) | |
1460 | t = 2 * sizeof (Elf64_External_Rela); | |
1461 | ||
eea6121a | 1462 | hppa_info->plt_rel_sec->size += t; |
15bda425 JL |
1463 | } |
1464 | ||
b34976b6 | 1465 | return TRUE; |
15bda425 JL |
1466 | } |
1467 | ||
1468 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
1469 | regular object. */ | |
1470 | ||
b34976b6 | 1471 | static bfd_boolean |
813c8a3c | 1472 | elf64_hppa_adjust_dynamic_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
a03bd320 | 1473 | struct elf_link_hash_entry *eh) |
15bda425 JL |
1474 | { |
1475 | /* ??? Undefined symbols with PLT entries should be re-defined | |
1476 | to be the PLT entry. */ | |
1477 | ||
1478 | /* If this is a weak symbol, and there is a real definition, the | |
1479 | processor independent code will have arranged for us to see the | |
1480 | real definition first, and we can just use the same value. */ | |
a03bd320 | 1481 | if (eh->u.weakdef != NULL) |
15bda425 | 1482 | { |
a03bd320 DA |
1483 | BFD_ASSERT (eh->u.weakdef->root.type == bfd_link_hash_defined |
1484 | || eh->u.weakdef->root.type == bfd_link_hash_defweak); | |
1485 | eh->root.u.def.section = eh->u.weakdef->root.u.def.section; | |
1486 | eh->root.u.def.value = eh->u.weakdef->root.u.def.value; | |
b34976b6 | 1487 | return TRUE; |
15bda425 JL |
1488 | } |
1489 | ||
1490 | /* If this is a reference to a symbol defined by a dynamic object which | |
1491 | is not a function, we might allocate the symbol in our .dynbss section | |
1492 | and allocate a COPY dynamic relocation. | |
1493 | ||
1494 | But PA64 code is canonically PIC, so as a rule we can avoid this sort | |
1495 | of hackery. */ | |
1496 | ||
b34976b6 | 1497 | return TRUE; |
15bda425 JL |
1498 | } |
1499 | ||
47b7c2db AM |
1500 | /* This function is called via elf_link_hash_traverse to mark millicode |
1501 | symbols with a dynindx of -1 and to remove the string table reference | |
1502 | from the dynamic symbol table. If the symbol is not a millicode symbol, | |
1503 | elf64_hppa_mark_exported_functions is called. */ | |
1504 | ||
b34976b6 | 1505 | static bfd_boolean |
a03bd320 | 1506 | elf64_hppa_mark_milli_and_exported_functions (struct elf_link_hash_entry *eh, |
813c8a3c | 1507 | void *data) |
47b7c2db | 1508 | { |
7686d77d | 1509 | struct bfd_link_info *info = (struct bfd_link_info *) data; |
47b7c2db | 1510 | |
7686d77d | 1511 | if (eh->type == STT_PARISC_MILLI) |
47b7c2db | 1512 | { |
7686d77d | 1513 | if (eh->dynindx != -1) |
47b7c2db | 1514 | { |
7686d77d | 1515 | eh->dynindx = -1; |
47b7c2db | 1516 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, |
7686d77d | 1517 | eh->dynstr_index); |
47b7c2db | 1518 | } |
b34976b6 | 1519 | return TRUE; |
47b7c2db AM |
1520 | } |
1521 | ||
a03bd320 | 1522 | return elf64_hppa_mark_exported_functions (eh, data); |
47b7c2db AM |
1523 | } |
1524 | ||
15bda425 JL |
1525 | /* Set the final sizes of the dynamic sections and allocate memory for |
1526 | the contents of our special sections. */ | |
1527 | ||
b34976b6 | 1528 | static bfd_boolean |
a03bd320 | 1529 | elf64_hppa_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) |
15bda425 | 1530 | { |
a03bd320 DA |
1531 | struct elf64_hppa_link_hash_table *hppa_info; |
1532 | struct elf64_hppa_allocate_data data; | |
15bda425 | 1533 | bfd *dynobj; |
a03bd320 DA |
1534 | bfd *ibfd; |
1535 | asection *sec; | |
b34976b6 AM |
1536 | bfd_boolean plt; |
1537 | bfd_boolean relocs; | |
1538 | bfd_boolean reltext; | |
15bda425 | 1539 | |
a03bd320 | 1540 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
1541 | if (hppa_info == NULL) |
1542 | return FALSE; | |
15bda425 JL |
1543 | |
1544 | dynobj = elf_hash_table (info)->dynobj; | |
1545 | BFD_ASSERT (dynobj != NULL); | |
1546 | ||
47b7c2db AM |
1547 | /* Mark each function this program exports so that we will allocate |
1548 | space in the .opd section for each function's FPTR. If we are | |
1549 | creating dynamic sections, change the dynamic index of millicode | |
1550 | symbols to -1 and remove them from the string table for .dynstr. | |
1551 | ||
1552 | We have to traverse the main linker hash table since we have to | |
1553 | find functions which may not have been mentioned in any relocs. */ | |
1554 | elf_link_hash_traverse (elf_hash_table (info), | |
1555 | (elf_hash_table (info)->dynamic_sections_created | |
1556 | ? elf64_hppa_mark_milli_and_exported_functions | |
1557 | : elf64_hppa_mark_exported_functions), | |
1558 | info); | |
1559 | ||
15bda425 JL |
1560 | if (elf_hash_table (info)->dynamic_sections_created) |
1561 | { | |
1562 | /* Set the contents of the .interp section to the interpreter. */ | |
893c4fe2 | 1563 | if (info->executable) |
15bda425 | 1564 | { |
3d4d4302 | 1565 | sec = bfd_get_linker_section (dynobj, ".interp"); |
a03bd320 DA |
1566 | BFD_ASSERT (sec != NULL); |
1567 | sec->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
1568 | sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
15bda425 JL |
1569 | } |
1570 | } | |
1571 | else | |
1572 | { | |
1573 | /* We may have created entries in the .rela.got section. | |
1574 | However, if we are not creating the dynamic sections, we will | |
1575 | not actually use these entries. Reset the size of .rela.dlt, | |
1576 | which will cause it to get stripped from the output file | |
1577 | below. */ | |
3d4d4302 | 1578 | sec = bfd_get_linker_section (dynobj, ".rela.dlt"); |
a03bd320 DA |
1579 | if (sec != NULL) |
1580 | sec->size = 0; | |
1581 | } | |
1582 | ||
1583 | /* Set up DLT, PLT and OPD offsets for local syms, and space for local | |
1584 | dynamic relocs. */ | |
1585 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
1586 | { | |
1587 | bfd_signed_vma *local_dlt; | |
1588 | bfd_signed_vma *end_local_dlt; | |
1589 | bfd_signed_vma *local_plt; | |
1590 | bfd_signed_vma *end_local_plt; | |
1591 | bfd_signed_vma *local_opd; | |
1592 | bfd_signed_vma *end_local_opd; | |
1593 | bfd_size_type locsymcount; | |
1594 | Elf_Internal_Shdr *symtab_hdr; | |
1595 | asection *srel; | |
1596 | ||
1597 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
1598 | continue; | |
1599 | ||
1600 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
1601 | { | |
1602 | struct elf64_hppa_dyn_reloc_entry *hdh_p; | |
1603 | ||
1604 | for (hdh_p = ((struct elf64_hppa_dyn_reloc_entry *) | |
1605 | elf_section_data (sec)->local_dynrel); | |
1606 | hdh_p != NULL; | |
1607 | hdh_p = hdh_p->next) | |
1608 | { | |
1609 | if (!bfd_is_abs_section (hdh_p->sec) | |
1610 | && bfd_is_abs_section (hdh_p->sec->output_section)) | |
1611 | { | |
1612 | /* Input section has been discarded, either because | |
1613 | it is a copy of a linkonce section or due to | |
1614 | linker script /DISCARD/, so we'll be discarding | |
1615 | the relocs too. */ | |
1616 | } | |
1617 | else if (hdh_p->count != 0) | |
1618 | { | |
1619 | srel = elf_section_data (hdh_p->sec)->sreloc; | |
1620 | srel->size += hdh_p->count * sizeof (Elf64_External_Rela); | |
1621 | if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0) | |
1622 | info->flags |= DF_TEXTREL; | |
1623 | } | |
1624 | } | |
1625 | } | |
1626 | ||
1627 | local_dlt = elf_local_got_refcounts (ibfd); | |
1628 | if (!local_dlt) | |
1629 | continue; | |
1630 | ||
1631 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
1632 | locsymcount = symtab_hdr->sh_info; | |
1633 | end_local_dlt = local_dlt + locsymcount; | |
1634 | sec = hppa_info->dlt_sec; | |
1635 | srel = hppa_info->dlt_rel_sec; | |
1636 | for (; local_dlt < end_local_dlt; ++local_dlt) | |
1637 | { | |
1638 | if (*local_dlt > 0) | |
1639 | { | |
1640 | *local_dlt = sec->size; | |
1641 | sec->size += DLT_ENTRY_SIZE; | |
68ffbac6 | 1642 | if (info->shared) |
a03bd320 DA |
1643 | { |
1644 | srel->size += sizeof (Elf64_External_Rela); | |
1645 | } | |
1646 | } | |
1647 | else | |
1648 | *local_dlt = (bfd_vma) -1; | |
1649 | } | |
1650 | ||
1651 | local_plt = end_local_dlt; | |
1652 | end_local_plt = local_plt + locsymcount; | |
1653 | if (! hppa_info->root.dynamic_sections_created) | |
1654 | { | |
1655 | /* Won't be used, but be safe. */ | |
1656 | for (; local_plt < end_local_plt; ++local_plt) | |
1657 | *local_plt = (bfd_vma) -1; | |
1658 | } | |
1659 | else | |
1660 | { | |
1661 | sec = hppa_info->plt_sec; | |
1662 | srel = hppa_info->plt_rel_sec; | |
1663 | for (; local_plt < end_local_plt; ++local_plt) | |
1664 | { | |
1665 | if (*local_plt > 0) | |
1666 | { | |
1667 | *local_plt = sec->size; | |
1668 | sec->size += PLT_ENTRY_SIZE; | |
1669 | if (info->shared) | |
1670 | srel->size += sizeof (Elf64_External_Rela); | |
1671 | } | |
1672 | else | |
1673 | *local_plt = (bfd_vma) -1; | |
1674 | } | |
1675 | } | |
1676 | ||
1677 | local_opd = end_local_plt; | |
1678 | end_local_opd = local_opd + locsymcount; | |
1679 | if (! hppa_info->root.dynamic_sections_created) | |
1680 | { | |
1681 | /* Won't be used, but be safe. */ | |
1682 | for (; local_opd < end_local_opd; ++local_opd) | |
1683 | *local_opd = (bfd_vma) -1; | |
1684 | } | |
1685 | else | |
1686 | { | |
1687 | sec = hppa_info->opd_sec; | |
1688 | srel = hppa_info->opd_rel_sec; | |
1689 | for (; local_opd < end_local_opd; ++local_opd) | |
1690 | { | |
1691 | if (*local_opd > 0) | |
1692 | { | |
1693 | *local_opd = sec->size; | |
1694 | sec->size += OPD_ENTRY_SIZE; | |
1695 | if (info->shared) | |
1696 | srel->size += sizeof (Elf64_External_Rela); | |
1697 | } | |
1698 | else | |
1699 | *local_opd = (bfd_vma) -1; | |
1700 | } | |
1701 | } | |
15bda425 JL |
1702 | } |
1703 | ||
1704 | /* Allocate the GOT entries. */ | |
1705 | ||
1706 | data.info = info; | |
a03bd320 | 1707 | if (hppa_info->dlt_sec) |
15bda425 | 1708 | { |
a03bd320 DA |
1709 | data.ofs = hppa_info->dlt_sec->size; |
1710 | elf_link_hash_traverse (elf_hash_table (info), | |
1711 | allocate_global_data_dlt, &data); | |
eea6121a | 1712 | hppa_info->dlt_sec->size = data.ofs; |
a03bd320 | 1713 | } |
15bda425 | 1714 | |
a03bd320 DA |
1715 | if (hppa_info->plt_sec) |
1716 | { | |
1717 | data.ofs = hppa_info->plt_sec->size; | |
1718 | elf_link_hash_traverse (elf_hash_table (info), | |
1719 | allocate_global_data_plt, &data); | |
eea6121a | 1720 | hppa_info->plt_sec->size = data.ofs; |
a03bd320 | 1721 | } |
15bda425 | 1722 | |
a03bd320 DA |
1723 | if (hppa_info->stub_sec) |
1724 | { | |
15bda425 | 1725 | data.ofs = 0x0; |
a03bd320 DA |
1726 | elf_link_hash_traverse (elf_hash_table (info), |
1727 | allocate_global_data_stub, &data); | |
eea6121a | 1728 | hppa_info->stub_sec->size = data.ofs; |
15bda425 JL |
1729 | } |
1730 | ||
15bda425 | 1731 | /* Allocate space for entries in the .opd section. */ |
a03bd320 | 1732 | if (hppa_info->opd_sec) |
15bda425 | 1733 | { |
a03bd320 DA |
1734 | data.ofs = hppa_info->opd_sec->size; |
1735 | elf_link_hash_traverse (elf_hash_table (info), | |
1736 | allocate_global_data_opd, &data); | |
eea6121a | 1737 | hppa_info->opd_sec->size = data.ofs; |
15bda425 JL |
1738 | } |
1739 | ||
1740 | /* Now allocate space for dynamic relocations, if necessary. */ | |
1741 | if (hppa_info->root.dynamic_sections_created) | |
a03bd320 DA |
1742 | elf_link_hash_traverse (elf_hash_table (info), |
1743 | allocate_dynrel_entries, &data); | |
15bda425 JL |
1744 | |
1745 | /* The sizes of all the sections are set. Allocate memory for them. */ | |
b34976b6 AM |
1746 | plt = FALSE; |
1747 | relocs = FALSE; | |
1748 | reltext = FALSE; | |
a03bd320 | 1749 | for (sec = dynobj->sections; sec != NULL; sec = sec->next) |
15bda425 JL |
1750 | { |
1751 | const char *name; | |
15bda425 | 1752 | |
a03bd320 | 1753 | if ((sec->flags & SEC_LINKER_CREATED) == 0) |
15bda425 JL |
1754 | continue; |
1755 | ||
1756 | /* It's OK to base decisions on the section name, because none | |
1757 | of the dynobj section names depend upon the input files. */ | |
a03bd320 | 1758 | name = bfd_get_section_name (dynobj, sec); |
15bda425 | 1759 | |
15bda425 JL |
1760 | if (strcmp (name, ".plt") == 0) |
1761 | { | |
c456f082 | 1762 | /* Remember whether there is a PLT. */ |
a03bd320 | 1763 | plt = sec->size != 0; |
15bda425 | 1764 | } |
c456f082 | 1765 | else if (strcmp (name, ".opd") == 0 |
0112cd26 | 1766 | || CONST_STRNEQ (name, ".dlt") |
c456f082 AM |
1767 | || strcmp (name, ".stub") == 0 |
1768 | || strcmp (name, ".got") == 0) | |
15bda425 | 1769 | { |
d663e1cd | 1770 | /* Strip this section if we don't need it; see the comment below. */ |
15bda425 | 1771 | } |
0112cd26 | 1772 | else if (CONST_STRNEQ (name, ".rela")) |
15bda425 | 1773 | { |
a03bd320 | 1774 | if (sec->size != 0) |
15bda425 JL |
1775 | { |
1776 | asection *target; | |
1777 | ||
1778 | /* Remember whether there are any reloc sections other | |
1779 | than .rela.plt. */ | |
1780 | if (strcmp (name, ".rela.plt") != 0) | |
1781 | { | |
1782 | const char *outname; | |
1783 | ||
b34976b6 | 1784 | relocs = TRUE; |
15bda425 JL |
1785 | |
1786 | /* If this relocation section applies to a read only | |
1787 | section, then we probably need a DT_TEXTREL | |
1788 | entry. The entries in the .rela.plt section | |
1789 | really apply to the .got section, which we | |
1790 | created ourselves and so know is not readonly. */ | |
1791 | outname = bfd_get_section_name (output_bfd, | |
a03bd320 | 1792 | sec->output_section); |
15bda425 JL |
1793 | target = bfd_get_section_by_name (output_bfd, outname + 4); |
1794 | if (target != NULL | |
1795 | && (target->flags & SEC_READONLY) != 0 | |
1796 | && (target->flags & SEC_ALLOC) != 0) | |
b34976b6 | 1797 | reltext = TRUE; |
15bda425 JL |
1798 | } |
1799 | ||
1800 | /* We use the reloc_count field as a counter if we need | |
1801 | to copy relocs into the output file. */ | |
a03bd320 | 1802 | sec->reloc_count = 0; |
15bda425 JL |
1803 | } |
1804 | } | |
c456f082 | 1805 | else |
15bda425 JL |
1806 | { |
1807 | /* It's not one of our sections, so don't allocate space. */ | |
1808 | continue; | |
1809 | } | |
1810 | ||
a03bd320 | 1811 | if (sec->size == 0) |
15bda425 | 1812 | { |
c456f082 AM |
1813 | /* If we don't need this section, strip it from the |
1814 | output file. This is mostly to handle .rela.bss and | |
1815 | .rela.plt. We must create both sections in | |
1816 | create_dynamic_sections, because they must be created | |
1817 | before the linker maps input sections to output | |
1818 | sections. The linker does that before | |
1819 | adjust_dynamic_symbol is called, and it is that | |
1820 | function which decides whether anything needs to go | |
1821 | into these sections. */ | |
a03bd320 | 1822 | sec->flags |= SEC_EXCLUDE; |
15bda425 JL |
1823 | continue; |
1824 | } | |
1825 | ||
a03bd320 | 1826 | if ((sec->flags & SEC_HAS_CONTENTS) == 0) |
c456f082 AM |
1827 | continue; |
1828 | ||
15bda425 | 1829 | /* Allocate memory for the section contents if it has not |
832d951b AM |
1830 | been allocated already. We use bfd_zalloc here in case |
1831 | unused entries are not reclaimed before the section's | |
1832 | contents are written out. This should not happen, but this | |
1833 | way if it does, we get a R_PARISC_NONE reloc instead of | |
1834 | garbage. */ | |
a03bd320 | 1835 | if (sec->contents == NULL) |
15bda425 | 1836 | { |
a03bd320 DA |
1837 | sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->size); |
1838 | if (sec->contents == NULL) | |
b34976b6 | 1839 | return FALSE; |
15bda425 JL |
1840 | } |
1841 | } | |
1842 | ||
1843 | if (elf_hash_table (info)->dynamic_sections_created) | |
1844 | { | |
1845 | /* Always create a DT_PLTGOT. It actually has nothing to do with | |
1846 | the PLT, it is how we communicate the __gp value of a load | |
1847 | module to the dynamic linker. */ | |
dc810e39 | 1848 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 1849 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 AM |
1850 | |
1851 | if (!add_dynamic_entry (DT_HP_DLD_FLAGS, 0) | |
1852 | || !add_dynamic_entry (DT_PLTGOT, 0)) | |
b34976b6 | 1853 | return FALSE; |
15bda425 JL |
1854 | |
1855 | /* Add some entries to the .dynamic section. We fill in the | |
1856 | values later, in elf64_hppa_finish_dynamic_sections, but we | |
1857 | must add the entries now so that we get the correct size for | |
1858 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
1859 | dynamic linker and used by the debugger. */ | |
1860 | if (! info->shared) | |
1861 | { | |
dc810e39 AM |
1862 | if (!add_dynamic_entry (DT_DEBUG, 0) |
1863 | || !add_dynamic_entry (DT_HP_DLD_HOOK, 0) | |
1864 | || !add_dynamic_entry (DT_HP_LOAD_MAP, 0)) | |
b34976b6 | 1865 | return FALSE; |
15bda425 JL |
1866 | } |
1867 | ||
f2482cb2 NC |
1868 | /* Force DT_FLAGS to always be set. |
1869 | Required by HPUX 11.00 patch PHSS_26559. */ | |
1870 | if (!add_dynamic_entry (DT_FLAGS, (info)->flags)) | |
b34976b6 | 1871 | return FALSE; |
f2482cb2 | 1872 | |
15bda425 JL |
1873 | if (plt) |
1874 | { | |
dc810e39 AM |
1875 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
1876 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
1877 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 1878 | return FALSE; |
15bda425 JL |
1879 | } |
1880 | ||
1881 | if (relocs) | |
1882 | { | |
dc810e39 AM |
1883 | if (!add_dynamic_entry (DT_RELA, 0) |
1884 | || !add_dynamic_entry (DT_RELASZ, 0) | |
1885 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
b34976b6 | 1886 | return FALSE; |
15bda425 JL |
1887 | } |
1888 | ||
1889 | if (reltext) | |
1890 | { | |
dc810e39 | 1891 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
b34976b6 | 1892 | return FALSE; |
d6cf2879 | 1893 | info->flags |= DF_TEXTREL; |
15bda425 JL |
1894 | } |
1895 | } | |
dc810e39 | 1896 | #undef add_dynamic_entry |
15bda425 | 1897 | |
b34976b6 | 1898 | return TRUE; |
15bda425 JL |
1899 | } |
1900 | ||
1901 | /* Called after we have output the symbol into the dynamic symbol | |
1902 | table, but before we output the symbol into the normal symbol | |
1903 | table. | |
1904 | ||
1905 | For some symbols we had to change their address when outputting | |
1906 | the dynamic symbol table. We undo that change here so that | |
1907 | the symbols have their expected value in the normal symbol | |
1908 | table. Ick. */ | |
1909 | ||
6e0b88f1 | 1910 | static int |
a03bd320 | 1911 | elf64_hppa_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED, |
813c8a3c DA |
1912 | const char *name, |
1913 | Elf_Internal_Sym *sym, | |
1914 | asection *input_sec ATTRIBUTE_UNUSED, | |
a03bd320 | 1915 | struct elf_link_hash_entry *eh) |
15bda425 | 1916 | { |
a03bd320 | 1917 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
1918 | |
1919 | /* We may be called with the file symbol or section symbols. | |
1920 | They never need munging, so it is safe to ignore them. */ | |
a03bd320 | 1921 | if (!name || !eh) |
6e0b88f1 | 1922 | return 1; |
15bda425 | 1923 | |
832d951b AM |
1924 | /* Function symbols for which we created .opd entries *may* have been |
1925 | munged by finish_dynamic_symbol and have to be un-munged here. | |
1926 | ||
1927 | Note that finish_dynamic_symbol sometimes turns dynamic symbols | |
1928 | into non-dynamic ones, so we initialize st_shndx to -1 in | |
1929 | mark_exported_functions and check to see if it was overwritten | |
a03bd320 DA |
1930 | here instead of just checking eh->dynindx. */ |
1931 | if (hh->want_opd && hh->st_shndx != -1) | |
15bda425 JL |
1932 | { |
1933 | /* Restore the saved value and section index. */ | |
a03bd320 DA |
1934 | sym->st_value = hh->st_value; |
1935 | sym->st_shndx = hh->st_shndx; | |
15bda425 JL |
1936 | } |
1937 | ||
6e0b88f1 | 1938 | return 1; |
15bda425 JL |
1939 | } |
1940 | ||
1941 | /* Finish up dynamic symbol handling. We set the contents of various | |
1942 | dynamic sections here. */ | |
1943 | ||
b34976b6 | 1944 | static bfd_boolean |
813c8a3c DA |
1945 | elf64_hppa_finish_dynamic_symbol (bfd *output_bfd, |
1946 | struct bfd_link_info *info, | |
a03bd320 | 1947 | struct elf_link_hash_entry *eh, |
813c8a3c | 1948 | Elf_Internal_Sym *sym) |
15bda425 | 1949 | { |
a03bd320 | 1950 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
c7e2358a | 1951 | asection *stub, *splt, *sopd, *spltrel; |
15bda425 | 1952 | struct elf64_hppa_link_hash_table *hppa_info; |
15bda425 | 1953 | |
a03bd320 | 1954 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
1955 | if (hppa_info == NULL) |
1956 | return FALSE; | |
15bda425 JL |
1957 | |
1958 | stub = hppa_info->stub_sec; | |
1959 | splt = hppa_info->plt_sec; | |
15bda425 JL |
1960 | sopd = hppa_info->opd_sec; |
1961 | spltrel = hppa_info->plt_rel_sec; | |
15bda425 | 1962 | |
15bda425 JL |
1963 | /* Incredible. It is actually necessary to NOT use the symbol's real |
1964 | value when building the dynamic symbol table for a shared library. | |
1965 | At least for symbols that refer to functions. | |
1966 | ||
1967 | We will store a new value and section index into the symbol long | |
1968 | enough to output it into the dynamic symbol table, then we restore | |
1969 | the original values (in elf64_hppa_link_output_symbol_hook). */ | |
a03bd320 | 1970 | if (hh->want_opd) |
15bda425 | 1971 | { |
f12123c0 | 1972 | BFD_ASSERT (sopd != NULL); |
d663e1cd | 1973 | |
15bda425 JL |
1974 | /* Save away the original value and section index so that we |
1975 | can restore them later. */ | |
a03bd320 DA |
1976 | hh->st_value = sym->st_value; |
1977 | hh->st_shndx = sym->st_shndx; | |
15bda425 JL |
1978 | |
1979 | /* For the dynamic symbol table entry, we want the value to be | |
1980 | address of this symbol's entry within the .opd section. */ | |
a03bd320 | 1981 | sym->st_value = (hh->opd_offset |
15bda425 JL |
1982 | + sopd->output_offset |
1983 | + sopd->output_section->vma); | |
1984 | sym->st_shndx = _bfd_elf_section_from_bfd_section (output_bfd, | |
1985 | sopd->output_section); | |
1986 | } | |
1987 | ||
1988 | /* Initialize a .plt entry if requested. */ | |
a03bd320 DA |
1989 | if (hh->want_plt |
1990 | && elf64_hppa_dynamic_symbol_p (eh, info)) | |
15bda425 JL |
1991 | { |
1992 | bfd_vma value; | |
1993 | Elf_Internal_Rela rel; | |
947216bf | 1994 | bfd_byte *loc; |
15bda425 | 1995 | |
f12123c0 | 1996 | BFD_ASSERT (splt != NULL && spltrel != NULL); |
d663e1cd | 1997 | |
15bda425 JL |
1998 | /* We do not actually care about the value in the PLT entry |
1999 | if we are creating a shared library and the symbol is | |
2000 | still undefined, we create a dynamic relocation to fill | |
2001 | in the correct value. */ | |
a03bd320 | 2002 | if (info->shared && eh->root.type == bfd_link_hash_undefined) |
15bda425 JL |
2003 | value = 0; |
2004 | else | |
a03bd320 | 2005 | value = (eh->root.u.def.value + eh->root.u.def.section->vma); |
15bda425 | 2006 | |
fe8bc63d | 2007 | /* Fill in the entry in the procedure linkage table. |
15bda425 JL |
2008 | |
2009 | The format of a plt entry is | |
fe8bc63d | 2010 | <funcaddr> <__gp>. |
15bda425 JL |
2011 | |
2012 | plt_offset is the offset within the PLT section at which to | |
fe8bc63d | 2013 | install the PLT entry. |
15bda425 JL |
2014 | |
2015 | We are modifying the in-memory PLT contents here, so we do not add | |
2016 | in the output_offset of the PLT section. */ | |
2017 | ||
a03bd320 | 2018 | bfd_put_64 (splt->owner, value, splt->contents + hh->plt_offset); |
15bda425 | 2019 | value = _bfd_get_gp_value (splt->output_section->owner); |
a03bd320 | 2020 | bfd_put_64 (splt->owner, value, splt->contents + hh->plt_offset + 0x8); |
15bda425 JL |
2021 | |
2022 | /* Create a dynamic IPLT relocation for this entry. | |
2023 | ||
2024 | We are creating a relocation in the output file's PLT section, | |
2025 | which is included within the DLT secton. So we do need to include | |
2026 | the PLT's output_offset in the computation of the relocation's | |
2027 | address. */ | |
a03bd320 | 2028 | rel.r_offset = (hh->plt_offset + splt->output_offset |
15bda425 | 2029 | + splt->output_section->vma); |
a03bd320 | 2030 | rel.r_info = ELF64_R_INFO (hh->eh.dynindx, R_PARISC_IPLT); |
15bda425 JL |
2031 | rel.r_addend = 0; |
2032 | ||
947216bf AM |
2033 | loc = spltrel->contents; |
2034 | loc += spltrel->reloc_count++ * sizeof (Elf64_External_Rela); | |
2035 | bfd_elf64_swap_reloca_out (splt->output_section->owner, &rel, loc); | |
15bda425 JL |
2036 | } |
2037 | ||
2038 | /* Initialize an external call stub entry if requested. */ | |
a03bd320 DA |
2039 | if (hh->want_stub |
2040 | && elf64_hppa_dynamic_symbol_p (eh, info)) | |
15bda425 JL |
2041 | { |
2042 | bfd_vma value; | |
2043 | int insn; | |
b352eebf | 2044 | unsigned int max_offset; |
15bda425 | 2045 | |
f12123c0 | 2046 | BFD_ASSERT (stub != NULL); |
d663e1cd | 2047 | |
15bda425 JL |
2048 | /* Install the generic stub template. |
2049 | ||
2050 | We are modifying the contents of the stub section, so we do not | |
2051 | need to include the stub section's output_offset here. */ | |
a03bd320 | 2052 | memcpy (stub->contents + hh->stub_offset, plt_stub, sizeof (plt_stub)); |
15bda425 JL |
2053 | |
2054 | /* Fix up the first ldd instruction. | |
2055 | ||
2056 | We are modifying the contents of the STUB section in memory, | |
fe8bc63d | 2057 | so we do not need to include its output offset in this computation. |
15bda425 JL |
2058 | |
2059 | Note the plt_offset value is the value of the PLT entry relative to | |
2060 | the start of the PLT section. These instructions will reference | |
2061 | data relative to the value of __gp, which may not necessarily have | |
2062 | the same address as the start of the PLT section. | |
2063 | ||
2064 | gp_offset contains the offset of __gp within the PLT section. */ | |
a03bd320 | 2065 | value = hh->plt_offset - hppa_info->gp_offset; |
fe8bc63d | 2066 | |
a03bd320 | 2067 | insn = bfd_get_32 (stub->owner, stub->contents + hh->stub_offset); |
b352eebf AM |
2068 | if (output_bfd->arch_info->mach >= 25) |
2069 | { | |
2070 | /* Wide mode allows 16 bit offsets. */ | |
2071 | max_offset = 32768; | |
2072 | insn &= ~ 0xfff1; | |
dc810e39 | 2073 | insn |= re_assemble_16 ((int) value); |
b352eebf AM |
2074 | } |
2075 | else | |
2076 | { | |
2077 | max_offset = 8192; | |
2078 | insn &= ~ 0x3ff1; | |
dc810e39 | 2079 | insn |= re_assemble_14 ((int) value); |
b352eebf AM |
2080 | } |
2081 | ||
2082 | if ((value & 7) || value + max_offset >= 2*max_offset - 8) | |
2083 | { | |
2084 | (*_bfd_error_handler) (_("stub entry for %s cannot load .plt, dp offset = %ld"), | |
a03bd320 | 2085 | hh->eh.root.root.string, |
b352eebf | 2086 | (long) value); |
b34976b6 | 2087 | return FALSE; |
b352eebf AM |
2088 | } |
2089 | ||
dc810e39 | 2090 | bfd_put_32 (stub->owner, (bfd_vma) insn, |
a03bd320 | 2091 | stub->contents + hh->stub_offset); |
15bda425 JL |
2092 | |
2093 | /* Fix up the second ldd instruction. */ | |
b352eebf | 2094 | value += 8; |
a03bd320 | 2095 | insn = bfd_get_32 (stub->owner, stub->contents + hh->stub_offset + 8); |
b352eebf AM |
2096 | if (output_bfd->arch_info->mach >= 25) |
2097 | { | |
2098 | insn &= ~ 0xfff1; | |
dc810e39 | 2099 | insn |= re_assemble_16 ((int) value); |
b352eebf AM |
2100 | } |
2101 | else | |
2102 | { | |
2103 | insn &= ~ 0x3ff1; | |
dc810e39 | 2104 | insn |= re_assemble_14 ((int) value); |
b352eebf | 2105 | } |
dc810e39 | 2106 | bfd_put_32 (stub->owner, (bfd_vma) insn, |
a03bd320 | 2107 | stub->contents + hh->stub_offset + 8); |
15bda425 JL |
2108 | } |
2109 | ||
b34976b6 | 2110 | return TRUE; |
15bda425 JL |
2111 | } |
2112 | ||
2113 | /* The .opd section contains FPTRs for each function this file | |
2114 | exports. Initialize the FPTR entries. */ | |
2115 | ||
b34976b6 | 2116 | static bfd_boolean |
a03bd320 | 2117 | elf64_hppa_finalize_opd (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 2118 | { |
a03bd320 | 2119 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
2120 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
2121 | struct elf64_hppa_link_hash_table *hppa_info; | |
15bda425 JL |
2122 | asection *sopd; |
2123 | asection *sopdrel; | |
2124 | ||
a03bd320 | 2125 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2126 | if (hppa_info == NULL) |
2127 | return FALSE; | |
2128 | ||
15bda425 JL |
2129 | sopd = hppa_info->opd_sec; |
2130 | sopdrel = hppa_info->opd_rel_sec; | |
2131 | ||
a03bd320 | 2132 | if (hh->want_opd) |
15bda425 JL |
2133 | { |
2134 | bfd_vma value; | |
2135 | ||
fe8bc63d | 2136 | /* The first two words of an .opd entry are zero. |
15bda425 JL |
2137 | |
2138 | We are modifying the contents of the OPD section in memory, so we | |
2139 | do not need to include its output offset in this computation. */ | |
a03bd320 | 2140 | memset (sopd->contents + hh->opd_offset, 0, 16); |
15bda425 | 2141 | |
a03bd320 DA |
2142 | value = (eh->root.u.def.value |
2143 | + eh->root.u.def.section->output_section->vma | |
2144 | + eh->root.u.def.section->output_offset); | |
15bda425 JL |
2145 | |
2146 | /* The next word is the address of the function. */ | |
a03bd320 | 2147 | bfd_put_64 (sopd->owner, value, sopd->contents + hh->opd_offset + 16); |
15bda425 JL |
2148 | |
2149 | /* The last word is our local __gp value. */ | |
2150 | value = _bfd_get_gp_value (sopd->output_section->owner); | |
a03bd320 | 2151 | bfd_put_64 (sopd->owner, value, sopd->contents + hh->opd_offset + 24); |
15bda425 JL |
2152 | } |
2153 | ||
2154 | /* If we are generating a shared library, we must generate EPLT relocations | |
2155 | for each entry in the .opd, even for static functions (they may have | |
2156 | had their address taken). */ | |
a03bd320 | 2157 | if (info->shared && hh->want_opd) |
15bda425 | 2158 | { |
947216bf AM |
2159 | Elf_Internal_Rela rel; |
2160 | bfd_byte *loc; | |
15bda425 JL |
2161 | int dynindx; |
2162 | ||
2163 | /* We may need to do a relocation against a local symbol, in | |
2164 | which case we have to look up it's dynamic symbol index off | |
2165 | the local symbol hash table. */ | |
a03bd320 DA |
2166 | if (eh->dynindx != -1) |
2167 | dynindx = eh->dynindx; | |
15bda425 JL |
2168 | else |
2169 | dynindx | |
a03bd320 DA |
2170 | = _bfd_elf_link_lookup_local_dynindx (info, hh->owner, |
2171 | hh->sym_indx); | |
15bda425 JL |
2172 | |
2173 | /* The offset of this relocation is the absolute address of the | |
2174 | .opd entry for this symbol. */ | |
a03bd320 | 2175 | rel.r_offset = (hh->opd_offset + sopd->output_offset |
15bda425 JL |
2176 | + sopd->output_section->vma); |
2177 | ||
2178 | /* If H is non-null, then we have an external symbol. | |
2179 | ||
2180 | It is imperative that we use a different dynamic symbol for the | |
2181 | EPLT relocation if the symbol has global scope. | |
2182 | ||
2183 | In the dynamic symbol table, the function symbol will have a value | |
2184 | which is address of the function's .opd entry. | |
2185 | ||
2186 | Thus, we can not use that dynamic symbol for the EPLT relocation | |
2187 | (if we did, the data in the .opd would reference itself rather | |
2188 | than the actual address of the function). Instead we have to use | |
2189 | a new dynamic symbol which has the same value as the original global | |
fe8bc63d | 2190 | function symbol. |
15bda425 JL |
2191 | |
2192 | We prefix the original symbol with a "." and use the new symbol in | |
2193 | the EPLT relocation. This new symbol has already been recorded in | |
2194 | the symbol table, we just have to look it up and use it. | |
2195 | ||
2196 | We do not have such problems with static functions because we do | |
2197 | not make their addresses in the dynamic symbol table point to | |
2198 | the .opd entry. Ultimately this should be safe since a static | |
2199 | function can not be directly referenced outside of its shared | |
2200 | library. | |
2201 | ||
2202 | We do have to play similar games for FPTR relocations in shared | |
2203 | libraries, including those for static symbols. See the FPTR | |
2204 | handling in elf64_hppa_finalize_dynreloc. */ | |
a03bd320 | 2205 | if (eh) |
15bda425 JL |
2206 | { |
2207 | char *new_name; | |
2208 | struct elf_link_hash_entry *nh; | |
2209 | ||
a03bd320 | 2210 | new_name = alloca (strlen (eh->root.root.string) + 2); |
15bda425 | 2211 | new_name[0] = '.'; |
a03bd320 | 2212 | strcpy (new_name + 1, eh->root.root.string); |
15bda425 JL |
2213 | |
2214 | nh = elf_link_hash_lookup (elf_hash_table (info), | |
adfef0bd | 2215 | new_name, TRUE, TRUE, FALSE); |
68ffbac6 | 2216 | |
15bda425 JL |
2217 | /* All we really want from the new symbol is its dynamic |
2218 | symbol index. */ | |
7fb9f789 NC |
2219 | if (nh) |
2220 | dynindx = nh->dynindx; | |
15bda425 JL |
2221 | } |
2222 | ||
2223 | rel.r_addend = 0; | |
2224 | rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_EPLT); | |
2225 | ||
947216bf AM |
2226 | loc = sopdrel->contents; |
2227 | loc += sopdrel->reloc_count++ * sizeof (Elf64_External_Rela); | |
2228 | bfd_elf64_swap_reloca_out (sopd->output_section->owner, &rel, loc); | |
15bda425 | 2229 | } |
b34976b6 | 2230 | return TRUE; |
15bda425 JL |
2231 | } |
2232 | ||
2233 | /* The .dlt section contains addresses for items referenced through the | |
2234 | dlt. Note that we can have a DLTIND relocation for a local symbol, thus | |
2235 | we can not depend on finish_dynamic_symbol to initialize the .dlt. */ | |
2236 | ||
b34976b6 | 2237 | static bfd_boolean |
a03bd320 | 2238 | elf64_hppa_finalize_dlt (struct elf_link_hash_entry *eh, void *data) |
15bda425 | 2239 | { |
a03bd320 | 2240 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
2241 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
2242 | struct elf64_hppa_link_hash_table *hppa_info; | |
2243 | asection *sdlt, *sdltrel; | |
15bda425 | 2244 | |
a03bd320 | 2245 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2246 | if (hppa_info == NULL) |
2247 | return FALSE; | |
15bda425 JL |
2248 | |
2249 | sdlt = hppa_info->dlt_sec; | |
2250 | sdltrel = hppa_info->dlt_rel_sec; | |
2251 | ||
2252 | /* H/DYN_H may refer to a local variable and we know it's | |
2253 | address, so there is no need to create a relocation. Just install | |
2254 | the proper value into the DLT, note this shortcut can not be | |
2255 | skipped when building a shared library. */ | |
a03bd320 | 2256 | if (! info->shared && hh && hh->want_dlt) |
15bda425 JL |
2257 | { |
2258 | bfd_vma value; | |
2259 | ||
2260 | /* If we had an LTOFF_FPTR style relocation we want the DLT entry | |
fe8bc63d | 2261 | to point to the FPTR entry in the .opd section. |
15bda425 JL |
2262 | |
2263 | We include the OPD's output offset in this computation as | |
2264 | we are referring to an absolute address in the resulting | |
2265 | object file. */ | |
a03bd320 | 2266 | if (hh->want_opd) |
15bda425 | 2267 | { |
a03bd320 | 2268 | value = (hh->opd_offset |
15bda425 JL |
2269 | + hppa_info->opd_sec->output_offset |
2270 | + hppa_info->opd_sec->output_section->vma); | |
2271 | } | |
a03bd320 DA |
2272 | else if ((eh->root.type == bfd_link_hash_defined |
2273 | || eh->root.type == bfd_link_hash_defweak) | |
2274 | && eh->root.u.def.section) | |
15bda425 | 2275 | { |
a03bd320 DA |
2276 | value = eh->root.u.def.value + eh->root.u.def.section->output_offset; |
2277 | if (eh->root.u.def.section->output_section) | |
2278 | value += eh->root.u.def.section->output_section->vma; | |
15bda425 | 2279 | else |
a03bd320 | 2280 | value += eh->root.u.def.section->vma; |
15bda425 | 2281 | } |
3db4b612 JL |
2282 | else |
2283 | /* We have an undefined function reference. */ | |
2284 | value = 0; | |
15bda425 JL |
2285 | |
2286 | /* We do not need to include the output offset of the DLT section | |
2287 | here because we are modifying the in-memory contents. */ | |
a03bd320 | 2288 | bfd_put_64 (sdlt->owner, value, sdlt->contents + hh->dlt_offset); |
15bda425 JL |
2289 | } |
2290 | ||
4cc11e76 | 2291 | /* Create a relocation for the DLT entry associated with this symbol. |
15bda425 | 2292 | When building a shared library the symbol does not have to be dynamic. */ |
a03bd320 DA |
2293 | if (hh->want_dlt |
2294 | && (elf64_hppa_dynamic_symbol_p (eh, info) || info->shared)) | |
15bda425 | 2295 | { |
947216bf AM |
2296 | Elf_Internal_Rela rel; |
2297 | bfd_byte *loc; | |
15bda425 JL |
2298 | int dynindx; |
2299 | ||
2300 | /* We may need to do a relocation against a local symbol, in | |
2301 | which case we have to look up it's dynamic symbol index off | |
2302 | the local symbol hash table. */ | |
a03bd320 DA |
2303 | if (eh && eh->dynindx != -1) |
2304 | dynindx = eh->dynindx; | |
15bda425 JL |
2305 | else |
2306 | dynindx | |
a03bd320 DA |
2307 | = _bfd_elf_link_lookup_local_dynindx (info, hh->owner, |
2308 | hh->sym_indx); | |
15bda425 | 2309 | |
15bda425 JL |
2310 | /* Create a dynamic relocation for this entry. Do include the output |
2311 | offset of the DLT entry since we need an absolute address in the | |
2312 | resulting object file. */ | |
a03bd320 | 2313 | rel.r_offset = (hh->dlt_offset + sdlt->output_offset |
15bda425 | 2314 | + sdlt->output_section->vma); |
a03bd320 | 2315 | if (eh && eh->type == STT_FUNC) |
15bda425 JL |
2316 | rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_FPTR64); |
2317 | else | |
2318 | rel.r_info = ELF64_R_INFO (dynindx, R_PARISC_DIR64); | |
2319 | rel.r_addend = 0; | |
2320 | ||
947216bf AM |
2321 | loc = sdltrel->contents; |
2322 | loc += sdltrel->reloc_count++ * sizeof (Elf64_External_Rela); | |
2323 | bfd_elf64_swap_reloca_out (sdlt->output_section->owner, &rel, loc); | |
15bda425 | 2324 | } |
b34976b6 | 2325 | return TRUE; |
15bda425 JL |
2326 | } |
2327 | ||
2328 | /* Finalize the dynamic relocations. Specifically the FPTR relocations | |
2329 | for dynamic functions used to initialize static data. */ | |
2330 | ||
b34976b6 | 2331 | static bfd_boolean |
a03bd320 | 2332 | elf64_hppa_finalize_dynreloc (struct elf_link_hash_entry *eh, |
813c8a3c | 2333 | void *data) |
15bda425 | 2334 | { |
a03bd320 | 2335 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); |
15bda425 JL |
2336 | struct bfd_link_info *info = (struct bfd_link_info *)data; |
2337 | struct elf64_hppa_link_hash_table *hppa_info; | |
15bda425 JL |
2338 | int dynamic_symbol; |
2339 | ||
a03bd320 | 2340 | dynamic_symbol = elf64_hppa_dynamic_symbol_p (eh, info); |
15bda425 JL |
2341 | |
2342 | if (!dynamic_symbol && !info->shared) | |
b34976b6 | 2343 | return TRUE; |
15bda425 | 2344 | |
a03bd320 | 2345 | if (hh->reloc_entries) |
15bda425 JL |
2346 | { |
2347 | struct elf64_hppa_dyn_reloc_entry *rent; | |
2348 | int dynindx; | |
2349 | ||
a03bd320 | 2350 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2351 | if (hppa_info == NULL) |
2352 | return FALSE; | |
15bda425 JL |
2353 | |
2354 | /* We may need to do a relocation against a local symbol, in | |
2355 | which case we have to look up it's dynamic symbol index off | |
2356 | the local symbol hash table. */ | |
a03bd320 DA |
2357 | if (eh->dynindx != -1) |
2358 | dynindx = eh->dynindx; | |
15bda425 JL |
2359 | else |
2360 | dynindx | |
a03bd320 DA |
2361 | = _bfd_elf_link_lookup_local_dynindx (info, hh->owner, |
2362 | hh->sym_indx); | |
15bda425 | 2363 | |
a03bd320 | 2364 | for (rent = hh->reloc_entries; rent; rent = rent->next) |
15bda425 | 2365 | { |
947216bf AM |
2366 | Elf_Internal_Rela rel; |
2367 | bfd_byte *loc; | |
15bda425 | 2368 | |
d663e1cd JL |
2369 | /* Allocate one iff we are building a shared library, the relocation |
2370 | isn't a R_PARISC_FPTR64, or we don't want an opd entry. */ | |
a03bd320 | 2371 | if (!info->shared && rent->type == R_PARISC_FPTR64 && hh->want_opd) |
d663e1cd | 2372 | continue; |
15bda425 | 2373 | |
fe8bc63d | 2374 | /* Create a dynamic relocation for this entry. |
15bda425 JL |
2375 | |
2376 | We need the output offset for the reloc's section because | |
2377 | we are creating an absolute address in the resulting object | |
2378 | file. */ | |
2379 | rel.r_offset = (rent->offset + rent->sec->output_offset | |
2380 | + rent->sec->output_section->vma); | |
2381 | ||
2382 | /* An FPTR64 relocation implies that we took the address of | |
2383 | a function and that the function has an entry in the .opd | |
2384 | section. We want the FPTR64 relocation to reference the | |
2385 | entry in .opd. | |
2386 | ||
2387 | We could munge the symbol value in the dynamic symbol table | |
2388 | (in fact we already do for functions with global scope) to point | |
2389 | to the .opd entry. Then we could use that dynamic symbol in | |
2390 | this relocation. | |
2391 | ||
2392 | Or we could do something sensible, not munge the symbol's | |
2393 | address and instead just use a different symbol to reference | |
2394 | the .opd entry. At least that seems sensible until you | |
2395 | realize there's no local dynamic symbols we can use for that | |
2396 | purpose. Thus the hair in the check_relocs routine. | |
fe8bc63d | 2397 | |
15bda425 JL |
2398 | We use a section symbol recorded by check_relocs as the |
2399 | base symbol for the relocation. The addend is the difference | |
2400 | between the section symbol and the address of the .opd entry. */ | |
a03bd320 | 2401 | if (info->shared && rent->type == R_PARISC_FPTR64 && hh->want_opd) |
15bda425 JL |
2402 | { |
2403 | bfd_vma value, value2; | |
15bda425 JL |
2404 | |
2405 | /* First compute the address of the opd entry for this symbol. */ | |
a03bd320 | 2406 | value = (hh->opd_offset |
15bda425 JL |
2407 | + hppa_info->opd_sec->output_section->vma |
2408 | + hppa_info->opd_sec->output_offset); | |
2409 | ||
2410 | /* Compute the value of the start of the section with | |
2411 | the relocation. */ | |
2412 | value2 = (rent->sec->output_section->vma | |
2413 | + rent->sec->output_offset); | |
2414 | ||
2415 | /* Compute the difference between the start of the section | |
2416 | with the relocation and the opd entry. */ | |
2417 | value -= value2; | |
fe8bc63d | 2418 | |
15bda425 JL |
2419 | /* The result becomes the addend of the relocation. */ |
2420 | rel.r_addend = value; | |
2421 | ||
2422 | /* The section symbol becomes the symbol for the dynamic | |
2423 | relocation. */ | |
2424 | dynindx | |
2425 | = _bfd_elf_link_lookup_local_dynindx (info, | |
2426 | rent->sec->owner, | |
2427 | rent->sec_symndx); | |
2428 | } | |
2429 | else | |
2430 | rel.r_addend = rent->addend; | |
2431 | ||
2432 | rel.r_info = ELF64_R_INFO (dynindx, rent->type); | |
2433 | ||
947216bf AM |
2434 | loc = hppa_info->other_rel_sec->contents; |
2435 | loc += (hppa_info->other_rel_sec->reloc_count++ | |
2436 | * sizeof (Elf64_External_Rela)); | |
15bda425 | 2437 | bfd_elf64_swap_reloca_out (hppa_info->other_rel_sec->output_section->owner, |
947216bf | 2438 | &rel, loc); |
15bda425 JL |
2439 | } |
2440 | } | |
2441 | ||
b34976b6 | 2442 | return TRUE; |
15bda425 JL |
2443 | } |
2444 | ||
5ac81c74 JL |
2445 | /* Used to decide how to sort relocs in an optimal manner for the |
2446 | dynamic linker, before writing them out. */ | |
2447 | ||
2448 | static enum elf_reloc_type_class | |
7e612e98 AM |
2449 | elf64_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
2450 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
2451 | const Elf_Internal_Rela *rela) | |
5ac81c74 | 2452 | { |
cf35638d | 2453 | if (ELF64_R_SYM (rela->r_info) == STN_UNDEF) |
5ac81c74 JL |
2454 | return reloc_class_relative; |
2455 | ||
2456 | switch ((int) ELF64_R_TYPE (rela->r_info)) | |
2457 | { | |
2458 | case R_PARISC_IPLT: | |
2459 | return reloc_class_plt; | |
2460 | case R_PARISC_COPY: | |
2461 | return reloc_class_copy; | |
2462 | default: | |
2463 | return reloc_class_normal; | |
2464 | } | |
2465 | } | |
2466 | ||
15bda425 JL |
2467 | /* Finish up the dynamic sections. */ |
2468 | ||
b34976b6 | 2469 | static bfd_boolean |
813c8a3c DA |
2470 | elf64_hppa_finish_dynamic_sections (bfd *output_bfd, |
2471 | struct bfd_link_info *info) | |
15bda425 JL |
2472 | { |
2473 | bfd *dynobj; | |
2474 | asection *sdyn; | |
2475 | struct elf64_hppa_link_hash_table *hppa_info; | |
2476 | ||
a03bd320 | 2477 | hppa_info = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2478 | if (hppa_info == NULL) |
2479 | return FALSE; | |
15bda425 JL |
2480 | |
2481 | /* Finalize the contents of the .opd section. */ | |
a03bd320 DA |
2482 | elf_link_hash_traverse (elf_hash_table (info), |
2483 | elf64_hppa_finalize_opd, | |
2484 | info); | |
15bda425 | 2485 | |
a03bd320 DA |
2486 | elf_link_hash_traverse (elf_hash_table (info), |
2487 | elf64_hppa_finalize_dynreloc, | |
2488 | info); | |
15bda425 JL |
2489 | |
2490 | /* Finalize the contents of the .dlt section. */ | |
2491 | dynobj = elf_hash_table (info)->dynobj; | |
2492 | /* Finalize the contents of the .dlt section. */ | |
a03bd320 DA |
2493 | elf_link_hash_traverse (elf_hash_table (info), |
2494 | elf64_hppa_finalize_dlt, | |
2495 | info); | |
15bda425 | 2496 | |
3d4d4302 | 2497 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
15bda425 JL |
2498 | |
2499 | if (elf_hash_table (info)->dynamic_sections_created) | |
2500 | { | |
2501 | Elf64_External_Dyn *dyncon, *dynconend; | |
15bda425 JL |
2502 | |
2503 | BFD_ASSERT (sdyn != NULL); | |
2504 | ||
2505 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
eea6121a | 2506 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
15bda425 JL |
2507 | for (; dyncon < dynconend; dyncon++) |
2508 | { | |
2509 | Elf_Internal_Dyn dyn; | |
2510 | asection *s; | |
2511 | ||
2512 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
2513 | ||
2514 | switch (dyn.d_tag) | |
2515 | { | |
2516 | default: | |
2517 | break; | |
2518 | ||
2519 | case DT_HP_LOAD_MAP: | |
2520 | /* Compute the absolute address of 16byte scratchpad area | |
2521 | for the dynamic linker. | |
2522 | ||
2523 | By convention the linker script will allocate the scratchpad | |
2524 | area at the start of the .data section. So all we have to | |
2525 | to is find the start of the .data section. */ | |
2526 | s = bfd_get_section_by_name (output_bfd, ".data"); | |
a505d7ac MR |
2527 | if (!s) |
2528 | return FALSE; | |
15bda425 JL |
2529 | dyn.d_un.d_ptr = s->vma; |
2530 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2531 | break; | |
2532 | ||
2533 | case DT_PLTGOT: | |
2534 | /* HP's use PLTGOT to set the GOT register. */ | |
2535 | dyn.d_un.d_ptr = _bfd_get_gp_value (output_bfd); | |
2536 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2537 | break; | |
2538 | ||
2539 | case DT_JMPREL: | |
2540 | s = hppa_info->plt_rel_sec; | |
2541 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
2542 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2543 | break; | |
2544 | ||
2545 | case DT_PLTRELSZ: | |
2546 | s = hppa_info->plt_rel_sec; | |
eea6121a | 2547 | dyn.d_un.d_val = s->size; |
15bda425 JL |
2548 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
2549 | break; | |
2550 | ||
2551 | case DT_RELA: | |
2552 | s = hppa_info->other_rel_sec; | |
eea6121a | 2553 | if (! s || ! s->size) |
15bda425 | 2554 | s = hppa_info->dlt_rel_sec; |
eea6121a | 2555 | if (! s || ! s->size) |
5ac81c74 | 2556 | s = hppa_info->opd_rel_sec; |
15bda425 JL |
2557 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
2558 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2559 | break; | |
2560 | ||
2561 | case DT_RELASZ: | |
2562 | s = hppa_info->other_rel_sec; | |
eea6121a | 2563 | dyn.d_un.d_val = s->size; |
15bda425 | 2564 | s = hppa_info->dlt_rel_sec; |
eea6121a | 2565 | dyn.d_un.d_val += s->size; |
15bda425 | 2566 | s = hppa_info->opd_rel_sec; |
eea6121a | 2567 | dyn.d_un.d_val += s->size; |
15bda425 JL |
2568 | /* There is some question about whether or not the size of |
2569 | the PLT relocs should be included here. HP's tools do | |
2570 | it, so we'll emulate them. */ | |
2571 | s = hppa_info->plt_rel_sec; | |
eea6121a | 2572 | dyn.d_un.d_val += s->size; |
15bda425 JL |
2573 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
2574 | break; | |
2575 | ||
2576 | } | |
2577 | } | |
2578 | } | |
2579 | ||
b34976b6 | 2580 | return TRUE; |
15bda425 JL |
2581 | } |
2582 | ||
235ecfbc NC |
2583 | /* Support for core dump NOTE sections. */ |
2584 | ||
2585 | static bfd_boolean | |
2586 | elf64_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
2587 | { | |
2588 | int offset; | |
2589 | size_t size; | |
2590 | ||
2591 | switch (note->descsz) | |
2592 | { | |
2593 | default: | |
2594 | return FALSE; | |
2595 | ||
2596 | case 760: /* Linux/hppa */ | |
2597 | /* pr_cursig */ | |
228e534f | 2598 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
235ecfbc NC |
2599 | |
2600 | /* pr_pid */ | |
228e534f | 2601 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
235ecfbc NC |
2602 | |
2603 | /* pr_reg */ | |
2604 | offset = 112; | |
2605 | size = 640; | |
2606 | ||
2607 | break; | |
2608 | } | |
2609 | ||
2610 | /* Make a ".reg/999" section. */ | |
2611 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
2612 | size, note->descpos + offset); | |
2613 | } | |
2614 | ||
2615 | static bfd_boolean | |
2616 | elf64_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
2617 | { | |
2618 | char * command; | |
2619 | int n; | |
2620 | ||
2621 | switch (note->descsz) | |
2622 | { | |
2623 | default: | |
2624 | return FALSE; | |
2625 | ||
2626 | case 136: /* Linux/hppa elf_prpsinfo. */ | |
228e534f | 2627 | elf_tdata (abfd)->core->program |
235ecfbc | 2628 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
228e534f | 2629 | elf_tdata (abfd)->core->command |
235ecfbc NC |
2630 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
2631 | } | |
2632 | ||
2633 | /* Note that for some reason, a spurious space is tacked | |
2634 | onto the end of the args in some (at least one anyway) | |
2635 | implementations, so strip it off if it exists. */ | |
228e534f | 2636 | command = elf_tdata (abfd)->core->command; |
235ecfbc NC |
2637 | n = strlen (command); |
2638 | ||
2639 | if (0 < n && command[n - 1] == ' ') | |
2640 | command[n - 1] = '\0'; | |
2641 | ||
2642 | return TRUE; | |
2643 | } | |
2644 | ||
15bda425 JL |
2645 | /* Return the number of additional phdrs we will need. |
2646 | ||
2647 | The generic ELF code only creates PT_PHDRs for executables. The HP | |
fe8bc63d | 2648 | dynamic linker requires PT_PHDRs for dynamic libraries too. |
15bda425 JL |
2649 | |
2650 | This routine indicates that the backend needs one additional program | |
2651 | header for that case. | |
2652 | ||
2653 | Note we do not have access to the link info structure here, so we have | |
2654 | to guess whether or not we are building a shared library based on the | |
2655 | existence of a .interp section. */ | |
2656 | ||
2657 | static int | |
a6b96beb | 2658 | elf64_hppa_additional_program_headers (bfd *abfd, |
813c8a3c | 2659 | struct bfd_link_info *info ATTRIBUTE_UNUSED) |
15bda425 JL |
2660 | { |
2661 | asection *s; | |
2662 | ||
2663 | /* If we are creating a shared library, then we have to create a | |
2664 | PT_PHDR segment. HP's dynamic linker chokes without it. */ | |
2665 | s = bfd_get_section_by_name (abfd, ".interp"); | |
2666 | if (! s) | |
2667 | return 1; | |
2668 | return 0; | |
2669 | } | |
2670 | ||
2671 | /* Allocate and initialize any program headers required by this | |
2672 | specific backend. | |
2673 | ||
2674 | The generic ELF code only creates PT_PHDRs for executables. The HP | |
fe8bc63d | 2675 | dynamic linker requires PT_PHDRs for dynamic libraries too. |
15bda425 JL |
2676 | |
2677 | This allocates the PT_PHDR and initializes it in a manner suitable | |
fe8bc63d | 2678 | for the HP linker. |
15bda425 JL |
2679 | |
2680 | Note we do not have access to the link info structure here, so we have | |
2681 | to guess whether or not we are building a shared library based on the | |
2682 | existence of a .interp section. */ | |
2683 | ||
b34976b6 | 2684 | static bfd_boolean |
8ded5a0f AM |
2685 | elf64_hppa_modify_segment_map (bfd *abfd, |
2686 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
15bda425 | 2687 | { |
edd21aca | 2688 | struct elf_segment_map *m; |
15bda425 JL |
2689 | asection *s; |
2690 | ||
2691 | s = bfd_get_section_by_name (abfd, ".interp"); | |
2692 | if (! s) | |
2693 | { | |
12bd6957 | 2694 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
15bda425 JL |
2695 | if (m->p_type == PT_PHDR) |
2696 | break; | |
2697 | if (m == NULL) | |
2698 | { | |
dc810e39 AM |
2699 | m = ((struct elf_segment_map *) |
2700 | bfd_zalloc (abfd, (bfd_size_type) sizeof *m)); | |
15bda425 | 2701 | if (m == NULL) |
b34976b6 | 2702 | return FALSE; |
15bda425 JL |
2703 | |
2704 | m->p_type = PT_PHDR; | |
2705 | m->p_flags = PF_R | PF_X; | |
2706 | m->p_flags_valid = 1; | |
2707 | m->p_paddr_valid = 1; | |
2708 | m->includes_phdrs = 1; | |
2709 | ||
12bd6957 AM |
2710 | m->next = elf_seg_map (abfd); |
2711 | elf_seg_map (abfd) = m; | |
15bda425 JL |
2712 | } |
2713 | } | |
2714 | ||
12bd6957 | 2715 | for (m = elf_seg_map (abfd); m != NULL; m = m->next) |
15bda425 JL |
2716 | if (m->p_type == PT_LOAD) |
2717 | { | |
0ba2a60e | 2718 | unsigned int i; |
15bda425 JL |
2719 | |
2720 | for (i = 0; i < m->count; i++) | |
2721 | { | |
2722 | /* The code "hint" is not really a hint. It is a requirement | |
2723 | for certain versions of the HP dynamic linker. Worse yet, | |
2724 | it must be set even if the shared library does not have | |
2725 | any code in its "text" segment (thus the check for .hash | |
2726 | to catch this situation). */ | |
2727 | if (m->sections[i]->flags & SEC_CODE | |
2728 | || (strcmp (m->sections[i]->name, ".hash") == 0)) | |
2729 | m->p_flags |= (PF_X | PF_HP_CODE); | |
2730 | } | |
2731 | } | |
2732 | ||
b34976b6 | 2733 | return TRUE; |
15bda425 JL |
2734 | } |
2735 | ||
3fab46d0 AM |
2736 | /* Called when writing out an object file to decide the type of a |
2737 | symbol. */ | |
2738 | static int | |
813c8a3c DA |
2739 | elf64_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, |
2740 | int type) | |
3fab46d0 AM |
2741 | { |
2742 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
2743 | return STT_PARISC_MILLI; | |
2744 | else | |
2745 | return type; | |
2746 | } | |
2747 | ||
d97a8924 | 2748 | /* Support HP specific sections for core files. */ |
91d6fa6a | 2749 | |
d97a8924 | 2750 | static bfd_boolean |
91d6fa6a | 2751 | elf64_hppa_section_from_phdr (bfd *abfd, Elf_Internal_Phdr *hdr, int sec_index, |
d97a8924 DA |
2752 | const char *typename) |
2753 | { | |
927e625f MK |
2754 | if (hdr->p_type == PT_HP_CORE_KERNEL) |
2755 | { | |
2756 | asection *sect; | |
2757 | ||
91d6fa6a | 2758 | if (!_bfd_elf_make_section_from_phdr (abfd, hdr, sec_index, typename)) |
927e625f MK |
2759 | return FALSE; |
2760 | ||
2761 | sect = bfd_make_section_anyway (abfd, ".kernel"); | |
2762 | if (sect == NULL) | |
2763 | return FALSE; | |
2764 | sect->size = hdr->p_filesz; | |
2765 | sect->filepos = hdr->p_offset; | |
2766 | sect->flags = SEC_HAS_CONTENTS | SEC_READONLY; | |
2767 | return TRUE; | |
2768 | } | |
2769 | ||
d97a8924 DA |
2770 | if (hdr->p_type == PT_HP_CORE_PROC) |
2771 | { | |
2772 | int sig; | |
2773 | ||
2774 | if (bfd_seek (abfd, hdr->p_offset, SEEK_SET) != 0) | |
2775 | return FALSE; | |
2776 | if (bfd_bread (&sig, 4, abfd) != 4) | |
2777 | return FALSE; | |
2778 | ||
228e534f | 2779 | elf_tdata (abfd)->core->signal = sig; |
d97a8924 | 2780 | |
91d6fa6a | 2781 | if (!_bfd_elf_make_section_from_phdr (abfd, hdr, sec_index, typename)) |
d97a8924 | 2782 | return FALSE; |
927e625f MK |
2783 | |
2784 | /* GDB uses the ".reg" section to read register contents. */ | |
2785 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", hdr->p_filesz, | |
2786 | hdr->p_offset); | |
d97a8924 DA |
2787 | } |
2788 | ||
2789 | if (hdr->p_type == PT_HP_CORE_LOADABLE | |
2790 | || hdr->p_type == PT_HP_CORE_STACK | |
2791 | || hdr->p_type == PT_HP_CORE_MMF) | |
2792 | hdr->p_type = PT_LOAD; | |
2793 | ||
91d6fa6a | 2794 | return _bfd_elf_make_section_from_phdr (abfd, hdr, sec_index, typename); |
d97a8924 DA |
2795 | } |
2796 | ||
5887528b DA |
2797 | /* Hook called by the linker routine which adds symbols from an object |
2798 | file. HP's libraries define symbols with HP specific section | |
2799 | indices, which we have to handle. */ | |
2800 | ||
2801 | static bfd_boolean | |
2802 | elf_hppa_add_symbol_hook (bfd *abfd, | |
2803 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
2804 | Elf_Internal_Sym *sym, | |
2805 | const char **namep ATTRIBUTE_UNUSED, | |
2806 | flagword *flagsp ATTRIBUTE_UNUSED, | |
2807 | asection **secp, | |
2808 | bfd_vma *valp) | |
2809 | { | |
91d6fa6a | 2810 | unsigned int sec_index = sym->st_shndx; |
5887528b | 2811 | |
91d6fa6a | 2812 | switch (sec_index) |
5887528b DA |
2813 | { |
2814 | case SHN_PARISC_ANSI_COMMON: | |
2815 | *secp = bfd_make_section_old_way (abfd, ".PARISC.ansi.common"); | |
2816 | (*secp)->flags |= SEC_IS_COMMON; | |
2817 | *valp = sym->st_size; | |
2818 | break; | |
2819 | ||
2820 | case SHN_PARISC_HUGE_COMMON: | |
2821 | *secp = bfd_make_section_old_way (abfd, ".PARISC.huge.common"); | |
2822 | (*secp)->flags |= SEC_IS_COMMON; | |
2823 | *valp = sym->st_size; | |
2824 | break; | |
2825 | } | |
2826 | ||
2827 | return TRUE; | |
2828 | } | |
2829 | ||
2830 | static bfd_boolean | |
2831 | elf_hppa_unmark_useless_dynamic_symbols (struct elf_link_hash_entry *h, | |
2832 | void *data) | |
2833 | { | |
2834 | struct bfd_link_info *info = data; | |
2835 | ||
5887528b DA |
2836 | /* If we are not creating a shared library, and this symbol is |
2837 | referenced by a shared library but is not defined anywhere, then | |
2838 | the generic code will warn that it is undefined. | |
2839 | ||
2840 | This behavior is undesirable on HPs since the standard shared | |
2841 | libraries contain references to undefined symbols. | |
2842 | ||
2843 | So we twiddle the flags associated with such symbols so that they | |
2844 | will not trigger the warning. ?!? FIXME. This is horribly fragile. | |
2845 | ||
2846 | Ultimately we should have better controls over the generic ELF BFD | |
2847 | linker code. */ | |
2848 | if (! info->relocatable | |
2849 | && info->unresolved_syms_in_shared_libs != RM_IGNORE | |
2850 | && h->root.type == bfd_link_hash_undefined | |
2851 | && h->ref_dynamic | |
2852 | && !h->ref_regular) | |
2853 | { | |
2854 | h->ref_dynamic = 0; | |
2855 | h->pointer_equality_needed = 1; | |
2856 | } | |
2857 | ||
2858 | return TRUE; | |
2859 | } | |
2860 | ||
2861 | static bfd_boolean | |
2862 | elf_hppa_remark_useless_dynamic_symbols (struct elf_link_hash_entry *h, | |
2863 | void *data) | |
2864 | { | |
2865 | struct bfd_link_info *info = data; | |
2866 | ||
5887528b DA |
2867 | /* If we are not creating a shared library, and this symbol is |
2868 | referenced by a shared library but is not defined anywhere, then | |
2869 | the generic code will warn that it is undefined. | |
2870 | ||
2871 | This behavior is undesirable on HPs since the standard shared | |
2872 | libraries contain references to undefined symbols. | |
2873 | ||
2874 | So we twiddle the flags associated with such symbols so that they | |
2875 | will not trigger the warning. ?!? FIXME. This is horribly fragile. | |
2876 | ||
2877 | Ultimately we should have better controls over the generic ELF BFD | |
2878 | linker code. */ | |
2879 | if (! info->relocatable | |
2880 | && info->unresolved_syms_in_shared_libs != RM_IGNORE | |
2881 | && h->root.type == bfd_link_hash_undefined | |
2882 | && !h->ref_dynamic | |
2883 | && !h->ref_regular | |
2884 | && h->pointer_equality_needed) | |
2885 | { | |
2886 | h->ref_dynamic = 1; | |
2887 | h->pointer_equality_needed = 0; | |
2888 | } | |
2889 | ||
2890 | return TRUE; | |
2891 | } | |
2892 | ||
2893 | static bfd_boolean | |
2894 | elf_hppa_is_dynamic_loader_symbol (const char *name) | |
2895 | { | |
2896 | return (! strcmp (name, "__CPU_REVISION") | |
2897 | || ! strcmp (name, "__CPU_KEYBITS_1") | |
2898 | || ! strcmp (name, "__SYSTEM_ID_D") | |
2899 | || ! strcmp (name, "__FPU_MODEL") | |
2900 | || ! strcmp (name, "__FPU_REVISION") | |
2901 | || ! strcmp (name, "__ARGC") | |
2902 | || ! strcmp (name, "__ARGV") | |
2903 | || ! strcmp (name, "__ENVP") | |
2904 | || ! strcmp (name, "__TLS_SIZE_D") | |
2905 | || ! strcmp (name, "__LOAD_INFO") | |
2906 | || ! strcmp (name, "__systab")); | |
2907 | } | |
2908 | ||
2909 | /* Record the lowest address for the data and text segments. */ | |
2910 | static void | |
2911 | elf_hppa_record_segment_addrs (bfd *abfd, | |
2912 | asection *section, | |
2913 | void *data) | |
2914 | { | |
2915 | struct elf64_hppa_link_hash_table *hppa_info = data; | |
2916 | ||
2917 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
2918 | { | |
2919 | bfd_vma value; | |
2920 | Elf_Internal_Phdr *p; | |
2921 | ||
2922 | p = _bfd_elf_find_segment_containing_section (abfd, section->output_section); | |
2923 | BFD_ASSERT (p != NULL); | |
2924 | value = p->p_vaddr; | |
2925 | ||
2926 | if (section->flags & SEC_READONLY) | |
2927 | { | |
2928 | if (value < hppa_info->text_segment_base) | |
2929 | hppa_info->text_segment_base = value; | |
2930 | } | |
2931 | else | |
2932 | { | |
2933 | if (value < hppa_info->data_segment_base) | |
2934 | hppa_info->data_segment_base = value; | |
2935 | } | |
2936 | } | |
2937 | } | |
2938 | ||
2939 | /* Called after we have seen all the input files/sections, but before | |
2940 | final symbol resolution and section placement has been determined. | |
2941 | ||
2942 | We use this hook to (possibly) provide a value for __gp, then we | |
2943 | fall back to the generic ELF final link routine. */ | |
2944 | ||
2945 | static bfd_boolean | |
2946 | elf_hppa_final_link (bfd *abfd, struct bfd_link_info *info) | |
2947 | { | |
2948 | bfd_boolean retval; | |
2949 | struct elf64_hppa_link_hash_table *hppa_info = hppa_link_hash_table (info); | |
2950 | ||
4dfe6ac6 NC |
2951 | if (hppa_info == NULL) |
2952 | return FALSE; | |
2953 | ||
5887528b DA |
2954 | if (! info->relocatable) |
2955 | { | |
2956 | struct elf_link_hash_entry *gp; | |
2957 | bfd_vma gp_val; | |
2958 | ||
2959 | /* The linker script defines a value for __gp iff it was referenced | |
2960 | by one of the objects being linked. First try to find the symbol | |
2961 | in the hash table. If that fails, just compute the value __gp | |
2962 | should have had. */ | |
2963 | gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE, | |
2964 | FALSE, FALSE); | |
2965 | ||
2966 | if (gp) | |
2967 | { | |
2968 | ||
2969 | /* Adjust the value of __gp as we may want to slide it into the | |
2970 | .plt section so that the stubs can access PLT entries without | |
2971 | using an addil sequence. */ | |
2972 | gp->root.u.def.value += hppa_info->gp_offset; | |
2973 | ||
2974 | gp_val = (gp->root.u.def.section->output_section->vma | |
2975 | + gp->root.u.def.section->output_offset | |
2976 | + gp->root.u.def.value); | |
2977 | } | |
2978 | else | |
2979 | { | |
2980 | asection *sec; | |
2981 | ||
2982 | /* First look for a .plt section. If found, then __gp is the | |
2983 | address of the .plt + gp_offset. | |
2984 | ||
2985 | If no .plt is found, then look for .dlt, .opd and .data (in | |
2986 | that order) and set __gp to the base address of whichever | |
2987 | section is found first. */ | |
2988 | ||
2989 | sec = hppa_info->plt_sec; | |
2990 | if (sec && ! (sec->flags & SEC_EXCLUDE)) | |
2991 | gp_val = (sec->output_offset | |
2992 | + sec->output_section->vma | |
2993 | + hppa_info->gp_offset); | |
2994 | else | |
2995 | { | |
2996 | sec = hppa_info->dlt_sec; | |
2997 | if (!sec || (sec->flags & SEC_EXCLUDE)) | |
2998 | sec = hppa_info->opd_sec; | |
2999 | if (!sec || (sec->flags & SEC_EXCLUDE)) | |
3000 | sec = bfd_get_section_by_name (abfd, ".data"); | |
3001 | if (!sec || (sec->flags & SEC_EXCLUDE)) | |
3002 | gp_val = 0; | |
3003 | else | |
3004 | gp_val = sec->output_offset + sec->output_section->vma; | |
3005 | } | |
3006 | } | |
3007 | ||
3008 | /* Install whatever value we found/computed for __gp. */ | |
3009 | _bfd_set_gp_value (abfd, gp_val); | |
3010 | } | |
3011 | ||
3012 | /* We need to know the base of the text and data segments so that we | |
3013 | can perform SEGREL relocations. We will record the base addresses | |
3014 | when we encounter the first SEGREL relocation. */ | |
3015 | hppa_info->text_segment_base = (bfd_vma)-1; | |
3016 | hppa_info->data_segment_base = (bfd_vma)-1; | |
3017 | ||
3018 | /* HP's shared libraries have references to symbols that are not | |
3019 | defined anywhere. The generic ELF BFD linker code will complain | |
3020 | about such symbols. | |
3021 | ||
3022 | So we detect the losing case and arrange for the flags on the symbol | |
3023 | to indicate that it was never referenced. This keeps the generic | |
3024 | ELF BFD link code happy and appears to not create any secondary | |
3025 | problems. Ultimately we need a way to control the behavior of the | |
3026 | generic ELF BFD link code better. */ | |
3027 | elf_link_hash_traverse (elf_hash_table (info), | |
3028 | elf_hppa_unmark_useless_dynamic_symbols, | |
3029 | info); | |
3030 | ||
3031 | /* Invoke the regular ELF backend linker to do all the work. */ | |
3032 | retval = bfd_elf_final_link (abfd, info); | |
3033 | ||
3034 | elf_link_hash_traverse (elf_hash_table (info), | |
3035 | elf_hppa_remark_useless_dynamic_symbols, | |
3036 | info); | |
3037 | ||
3038 | /* If we're producing a final executable, sort the contents of the | |
3039 | unwind section. */ | |
d9f40817 | 3040 | if (retval && !info->relocatable) |
5887528b DA |
3041 | retval = elf_hppa_sort_unwind (abfd); |
3042 | ||
3043 | return retval; | |
3044 | } | |
3045 | ||
3046 | /* Relocate the given INSN. VALUE should be the actual value we want | |
3047 | to insert into the instruction, ie by this point we should not be | |
3048 | concerned with computing an offset relative to the DLT, PC, etc. | |
3049 | Instead this routine is meant to handle the bit manipulations needed | |
3050 | to insert the relocation into the given instruction. */ | |
3051 | ||
3052 | static int | |
3053 | elf_hppa_relocate_insn (int insn, int sym_value, unsigned int r_type) | |
3054 | { | |
3055 | switch (r_type) | |
3056 | { | |
3057 | /* This is any 22 bit branch. In PA2.0 syntax it corresponds to | |
3058 | the "B" instruction. */ | |
3059 | case R_PARISC_PCREL22F: | |
3060 | case R_PARISC_PCREL22C: | |
3061 | return (insn & ~0x3ff1ffd) | re_assemble_22 (sym_value); | |
3062 | ||
3063 | /* This is any 12 bit branch. */ | |
3064 | case R_PARISC_PCREL12F: | |
3065 | return (insn & ~0x1ffd) | re_assemble_12 (sym_value); | |
3066 | ||
3067 | /* This is any 17 bit branch. In PA2.0 syntax it also corresponds | |
3068 | to the "B" instruction as well as BE. */ | |
3069 | case R_PARISC_PCREL17F: | |
3070 | case R_PARISC_DIR17F: | |
3071 | case R_PARISC_DIR17R: | |
3072 | case R_PARISC_PCREL17C: | |
3073 | case R_PARISC_PCREL17R: | |
3074 | return (insn & ~0x1f1ffd) | re_assemble_17 (sym_value); | |
3075 | ||
3076 | /* ADDIL or LDIL instructions. */ | |
3077 | case R_PARISC_DLTREL21L: | |
3078 | case R_PARISC_DLTIND21L: | |
3079 | case R_PARISC_LTOFF_FPTR21L: | |
3080 | case R_PARISC_PCREL21L: | |
3081 | case R_PARISC_LTOFF_TP21L: | |
3082 | case R_PARISC_DPREL21L: | |
3083 | case R_PARISC_PLTOFF21L: | |
3084 | case R_PARISC_DIR21L: | |
3085 | return (insn & ~0x1fffff) | re_assemble_21 (sym_value); | |
3086 | ||
3087 | /* LDO and integer loads/stores with 14 bit displacements. */ | |
3088 | case R_PARISC_DLTREL14R: | |
3089 | case R_PARISC_DLTREL14F: | |
3090 | case R_PARISC_DLTIND14R: | |
3091 | case R_PARISC_DLTIND14F: | |
3092 | case R_PARISC_LTOFF_FPTR14R: | |
3093 | case R_PARISC_PCREL14R: | |
3094 | case R_PARISC_PCREL14F: | |
3095 | case R_PARISC_LTOFF_TP14R: | |
3096 | case R_PARISC_LTOFF_TP14F: | |
3097 | case R_PARISC_DPREL14R: | |
3098 | case R_PARISC_DPREL14F: | |
3099 | case R_PARISC_PLTOFF14R: | |
3100 | case R_PARISC_PLTOFF14F: | |
3101 | case R_PARISC_DIR14R: | |
3102 | case R_PARISC_DIR14F: | |
3103 | return (insn & ~0x3fff) | low_sign_unext (sym_value, 14); | |
3104 | ||
3105 | /* PA2.0W LDO and integer loads/stores with 16 bit displacements. */ | |
3106 | case R_PARISC_LTOFF_FPTR16F: | |
3107 | case R_PARISC_PCREL16F: | |
3108 | case R_PARISC_LTOFF_TP16F: | |
3109 | case R_PARISC_GPREL16F: | |
3110 | case R_PARISC_PLTOFF16F: | |
3111 | case R_PARISC_DIR16F: | |
3112 | case R_PARISC_LTOFF16F: | |
3113 | return (insn & ~0xffff) | re_assemble_16 (sym_value); | |
3114 | ||
3115 | /* Doubleword loads and stores with a 14 bit displacement. */ | |
3116 | case R_PARISC_DLTREL14DR: | |
3117 | case R_PARISC_DLTIND14DR: | |
3118 | case R_PARISC_LTOFF_FPTR14DR: | |
3119 | case R_PARISC_LTOFF_FPTR16DF: | |
3120 | case R_PARISC_PCREL14DR: | |
3121 | case R_PARISC_PCREL16DF: | |
3122 | case R_PARISC_LTOFF_TP14DR: | |
3123 | case R_PARISC_LTOFF_TP16DF: | |
3124 | case R_PARISC_DPREL14DR: | |
3125 | case R_PARISC_GPREL16DF: | |
3126 | case R_PARISC_PLTOFF14DR: | |
3127 | case R_PARISC_PLTOFF16DF: | |
3128 | case R_PARISC_DIR14DR: | |
3129 | case R_PARISC_DIR16DF: | |
3130 | case R_PARISC_LTOFF16DF: | |
3131 | return (insn & ~0x3ff1) | (((sym_value & 0x2000) >> 13) | |
3132 | | ((sym_value & 0x1ff8) << 1)); | |
3133 | ||
3134 | /* Floating point single word load/store instructions. */ | |
3135 | case R_PARISC_DLTREL14WR: | |
3136 | case R_PARISC_DLTIND14WR: | |
3137 | case R_PARISC_LTOFF_FPTR14WR: | |
3138 | case R_PARISC_LTOFF_FPTR16WF: | |
3139 | case R_PARISC_PCREL14WR: | |
3140 | case R_PARISC_PCREL16WF: | |
3141 | case R_PARISC_LTOFF_TP14WR: | |
3142 | case R_PARISC_LTOFF_TP16WF: | |
3143 | case R_PARISC_DPREL14WR: | |
3144 | case R_PARISC_GPREL16WF: | |
3145 | case R_PARISC_PLTOFF14WR: | |
3146 | case R_PARISC_PLTOFF16WF: | |
3147 | case R_PARISC_DIR16WF: | |
3148 | case R_PARISC_DIR14WR: | |
3149 | case R_PARISC_LTOFF16WF: | |
3150 | return (insn & ~0x3ff9) | (((sym_value & 0x2000) >> 13) | |
3151 | | ((sym_value & 0x1ffc) << 1)); | |
3152 | ||
3153 | default: | |
3154 | return insn; | |
3155 | } | |
3156 | } | |
3157 | ||
3158 | /* Compute the value for a relocation (REL) during a final link stage, | |
3159 | then insert the value into the proper location in CONTENTS. | |
3160 | ||
3161 | VALUE is a tentative value for the relocation and may be overridden | |
3162 | and modified here based on the specific relocation to be performed. | |
3163 | ||
3164 | For example we do conversions for PC-relative branches in this routine | |
3165 | or redirection of calls to external routines to stubs. | |
3166 | ||
3167 | The work of actually applying the relocation is left to a helper | |
3168 | routine in an attempt to reduce the complexity and size of this | |
3169 | function. */ | |
3170 | ||
3171 | static bfd_reloc_status_type | |
3172 | elf_hppa_final_link_relocate (Elf_Internal_Rela *rel, | |
3173 | bfd *input_bfd, | |
3174 | bfd *output_bfd, | |
3175 | asection *input_section, | |
3176 | bfd_byte *contents, | |
3177 | bfd_vma value, | |
3178 | struct bfd_link_info *info, | |
3179 | asection *sym_sec, | |
3180 | struct elf_link_hash_entry *eh) | |
3181 | { | |
3182 | struct elf64_hppa_link_hash_table *hppa_info = hppa_link_hash_table (info); | |
3183 | struct elf64_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); | |
3184 | bfd_vma *local_offsets; | |
3185 | Elf_Internal_Shdr *symtab_hdr; | |
3186 | int insn; | |
3187 | bfd_vma max_branch_offset = 0; | |
3188 | bfd_vma offset = rel->r_offset; | |
3189 | bfd_signed_vma addend = rel->r_addend; | |
3190 | reloc_howto_type *howto = elf_hppa_howto_table + ELF_R_TYPE (rel->r_info); | |
3191 | unsigned int r_symndx = ELF_R_SYM (rel->r_info); | |
3192 | unsigned int r_type = howto->type; | |
3193 | bfd_byte *hit_data = contents + offset; | |
3194 | ||
4dfe6ac6 NC |
3195 | if (hppa_info == NULL) |
3196 | return bfd_reloc_notsupported; | |
68ffbac6 | 3197 | |
5887528b DA |
3198 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
3199 | local_offsets = elf_local_got_offsets (input_bfd); | |
3200 | insn = bfd_get_32 (input_bfd, hit_data); | |
3201 | ||
3202 | switch (r_type) | |
3203 | { | |
3204 | case R_PARISC_NONE: | |
3205 | break; | |
3206 | ||
3207 | /* Basic function call support. | |
3208 | ||
3209 | Note for a call to a function defined in another dynamic library | |
3210 | we want to redirect the call to a stub. */ | |
3211 | ||
3212 | /* PC relative relocs without an implicit offset. */ | |
3213 | case R_PARISC_PCREL21L: | |
3214 | case R_PARISC_PCREL14R: | |
3215 | case R_PARISC_PCREL14F: | |
3216 | case R_PARISC_PCREL14WR: | |
3217 | case R_PARISC_PCREL14DR: | |
3218 | case R_PARISC_PCREL16F: | |
3219 | case R_PARISC_PCREL16WF: | |
3220 | case R_PARISC_PCREL16DF: | |
3221 | { | |
3222 | /* If this is a call to a function defined in another dynamic | |
3223 | library, then redirect the call to the local stub for this | |
3224 | function. */ | |
3225 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3226 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3227 | + hppa_info->stub_sec->output_section->vma); | |
3228 | ||
3229 | /* Turn VALUE into a proper PC relative address. */ | |
3230 | value -= (offset + input_section->output_offset | |
3231 | + input_section->output_section->vma); | |
3232 | ||
3233 | /* Adjust for any field selectors. */ | |
3234 | if (r_type == R_PARISC_PCREL21L) | |
3235 | value = hppa_field_adjust (value, -8 + addend, e_lsel); | |
3236 | else if (r_type == R_PARISC_PCREL14F | |
3237 | || r_type == R_PARISC_PCREL16F | |
3238 | || r_type == R_PARISC_PCREL16WF | |
3239 | || r_type == R_PARISC_PCREL16DF) | |
3240 | value = hppa_field_adjust (value, -8 + addend, e_fsel); | |
3241 | else | |
3242 | value = hppa_field_adjust (value, -8 + addend, e_rsel); | |
3243 | ||
3244 | /* Apply the relocation to the given instruction. */ | |
3245 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3246 | break; | |
3247 | } | |
3248 | ||
3249 | case R_PARISC_PCREL12F: | |
3250 | case R_PARISC_PCREL22F: | |
3251 | case R_PARISC_PCREL17F: | |
3252 | case R_PARISC_PCREL22C: | |
3253 | case R_PARISC_PCREL17C: | |
3254 | case R_PARISC_PCREL17R: | |
3255 | { | |
3256 | /* If this is a call to a function defined in another dynamic | |
3257 | library, then redirect the call to the local stub for this | |
3258 | function. */ | |
3259 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3260 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3261 | + hppa_info->stub_sec->output_section->vma); | |
3262 | ||
3263 | /* Turn VALUE into a proper PC relative address. */ | |
3264 | value -= (offset + input_section->output_offset | |
3265 | + input_section->output_section->vma); | |
3266 | addend -= 8; | |
3267 | ||
3268 | if (r_type == (unsigned int) R_PARISC_PCREL22F) | |
3269 | max_branch_offset = (1 << (22-1)) << 2; | |
3270 | else if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3271 | max_branch_offset = (1 << (17-1)) << 2; | |
3272 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3273 | max_branch_offset = (1 << (12-1)) << 2; | |
3274 | ||
3275 | /* Make sure we can reach the branch target. */ | |
3276 | if (max_branch_offset != 0 | |
3277 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3278 | { | |
3279 | (*_bfd_error_handler) | |
29bff3ea | 3280 | (_("%B(%A+0x%" BFD_VMA_FMT "x): cannot reach %s"), |
5887528b DA |
3281 | input_bfd, |
3282 | input_section, | |
3283 | offset, | |
d91a6875 | 3284 | eh ? eh->root.root.string : "unknown"); |
5887528b | 3285 | bfd_set_error (bfd_error_bad_value); |
d91a6875 | 3286 | return bfd_reloc_overflow; |
5887528b DA |
3287 | } |
3288 | ||
3289 | /* Adjust for any field selectors. */ | |
3290 | if (r_type == R_PARISC_PCREL17R) | |
3291 | value = hppa_field_adjust (value, addend, e_rsel); | |
3292 | else | |
3293 | value = hppa_field_adjust (value, addend, e_fsel); | |
3294 | ||
3295 | /* All branches are implicitly shifted by 2 places. */ | |
3296 | value >>= 2; | |
3297 | ||
3298 | /* Apply the relocation to the given instruction. */ | |
3299 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3300 | break; | |
3301 | } | |
3302 | ||
3303 | /* Indirect references to data through the DLT. */ | |
3304 | case R_PARISC_DLTIND14R: | |
3305 | case R_PARISC_DLTIND14F: | |
3306 | case R_PARISC_DLTIND14DR: | |
3307 | case R_PARISC_DLTIND14WR: | |
3308 | case R_PARISC_DLTIND21L: | |
3309 | case R_PARISC_LTOFF_FPTR14R: | |
3310 | case R_PARISC_LTOFF_FPTR14DR: | |
3311 | case R_PARISC_LTOFF_FPTR14WR: | |
3312 | case R_PARISC_LTOFF_FPTR21L: | |
3313 | case R_PARISC_LTOFF_FPTR16F: | |
3314 | case R_PARISC_LTOFF_FPTR16WF: | |
3315 | case R_PARISC_LTOFF_FPTR16DF: | |
3316 | case R_PARISC_LTOFF_TP21L: | |
3317 | case R_PARISC_LTOFF_TP14R: | |
3318 | case R_PARISC_LTOFF_TP14F: | |
3319 | case R_PARISC_LTOFF_TP14WR: | |
3320 | case R_PARISC_LTOFF_TP14DR: | |
3321 | case R_PARISC_LTOFF_TP16F: | |
3322 | case R_PARISC_LTOFF_TP16WF: | |
3323 | case R_PARISC_LTOFF_TP16DF: | |
3324 | case R_PARISC_LTOFF16F: | |
3325 | case R_PARISC_LTOFF16WF: | |
3326 | case R_PARISC_LTOFF16DF: | |
3327 | { | |
3328 | bfd_vma off; | |
3329 | ||
3330 | /* If this relocation was against a local symbol, then we still | |
3331 | have not set up the DLT entry (it's not convenient to do so | |
3332 | in the "finalize_dlt" routine because it is difficult to get | |
3333 | to the local symbol's value). | |
3334 | ||
3335 | So, if this is a local symbol (h == NULL), then we need to | |
3336 | fill in its DLT entry. | |
3337 | ||
3338 | Similarly we may still need to set up an entry in .opd for | |
3339 | a local function which had its address taken. */ | |
3340 | if (hh == NULL) | |
3341 | { | |
3342 | bfd_vma *local_opd_offsets, *local_dlt_offsets; | |
3343 | ||
3344 | if (local_offsets == NULL) | |
3345 | abort (); | |
3346 | ||
3347 | /* Now do .opd creation if needed. */ | |
3348 | if (r_type == R_PARISC_LTOFF_FPTR14R | |
3349 | || r_type == R_PARISC_LTOFF_FPTR14DR | |
3350 | || r_type == R_PARISC_LTOFF_FPTR14WR | |
3351 | || r_type == R_PARISC_LTOFF_FPTR21L | |
3352 | || r_type == R_PARISC_LTOFF_FPTR16F | |
3353 | || r_type == R_PARISC_LTOFF_FPTR16WF | |
3354 | || r_type == R_PARISC_LTOFF_FPTR16DF) | |
3355 | { | |
3356 | local_opd_offsets = local_offsets + 2 * symtab_hdr->sh_info; | |
3357 | off = local_opd_offsets[r_symndx]; | |
3358 | ||
3359 | /* The last bit records whether we've already initialised | |
3360 | this local .opd entry. */ | |
3361 | if ((off & 1) != 0) | |
3362 | { | |
3363 | BFD_ASSERT (off != (bfd_vma) -1); | |
3364 | off &= ~1; | |
3365 | } | |
3366 | else | |
3367 | { | |
3368 | local_opd_offsets[r_symndx] |= 1; | |
3369 | ||
3370 | /* The first two words of an .opd entry are zero. */ | |
3371 | memset (hppa_info->opd_sec->contents + off, 0, 16); | |
3372 | ||
3373 | /* The next word is the address of the function. */ | |
3374 | bfd_put_64 (hppa_info->opd_sec->owner, value + addend, | |
3375 | (hppa_info->opd_sec->contents + off + 16)); | |
3376 | ||
3377 | /* The last word is our local __gp value. */ | |
3378 | value = _bfd_get_gp_value | |
3379 | (hppa_info->opd_sec->output_section->owner); | |
3380 | bfd_put_64 (hppa_info->opd_sec->owner, value, | |
3381 | (hppa_info->opd_sec->contents + off + 24)); | |
3382 | } | |
3383 | ||
3384 | /* The DLT value is the address of the .opd entry. */ | |
3385 | value = (off | |
3386 | + hppa_info->opd_sec->output_offset | |
3387 | + hppa_info->opd_sec->output_section->vma); | |
3388 | addend = 0; | |
3389 | } | |
3390 | ||
3391 | local_dlt_offsets = local_offsets; | |
3392 | off = local_dlt_offsets[r_symndx]; | |
3393 | ||
3394 | if ((off & 1) != 0) | |
3395 | { | |
3396 | BFD_ASSERT (off != (bfd_vma) -1); | |
3397 | off &= ~1; | |
3398 | } | |
3399 | else | |
3400 | { | |
3401 | local_dlt_offsets[r_symndx] |= 1; | |
3402 | bfd_put_64 (hppa_info->dlt_sec->owner, | |
3403 | value + addend, | |
3404 | hppa_info->dlt_sec->contents + off); | |
3405 | } | |
3406 | } | |
3407 | else | |
3408 | off = hh->dlt_offset; | |
3409 | ||
3410 | /* We want the value of the DLT offset for this symbol, not | |
3411 | the symbol's actual address. Note that __gp may not point | |
3412 | to the start of the DLT, so we have to compute the absolute | |
3413 | address, then subtract out the value of __gp. */ | |
3414 | value = (off | |
3415 | + hppa_info->dlt_sec->output_offset | |
3416 | + hppa_info->dlt_sec->output_section->vma); | |
3417 | value -= _bfd_get_gp_value (output_bfd); | |
3418 | ||
3419 | /* All DLTIND relocations are basically the same at this point, | |
3420 | except that we need different field selectors for the 21bit | |
3421 | version vs the 14bit versions. */ | |
3422 | if (r_type == R_PARISC_DLTIND21L | |
3423 | || r_type == R_PARISC_LTOFF_FPTR21L | |
3424 | || r_type == R_PARISC_LTOFF_TP21L) | |
3425 | value = hppa_field_adjust (value, 0, e_lsel); | |
3426 | else if (r_type == R_PARISC_DLTIND14F | |
3427 | || r_type == R_PARISC_LTOFF_FPTR16F | |
3428 | || r_type == R_PARISC_LTOFF_FPTR16WF | |
3429 | || r_type == R_PARISC_LTOFF_FPTR16DF | |
3430 | || r_type == R_PARISC_LTOFF16F | |
3431 | || r_type == R_PARISC_LTOFF16DF | |
3432 | || r_type == R_PARISC_LTOFF16WF | |
3433 | || r_type == R_PARISC_LTOFF_TP16F | |
3434 | || r_type == R_PARISC_LTOFF_TP16WF | |
3435 | || r_type == R_PARISC_LTOFF_TP16DF) | |
3436 | value = hppa_field_adjust (value, 0, e_fsel); | |
3437 | else | |
3438 | value = hppa_field_adjust (value, 0, e_rsel); | |
3439 | ||
3440 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3441 | break; | |
3442 | } | |
3443 | ||
3444 | case R_PARISC_DLTREL14R: | |
3445 | case R_PARISC_DLTREL14F: | |
3446 | case R_PARISC_DLTREL14DR: | |
3447 | case R_PARISC_DLTREL14WR: | |
3448 | case R_PARISC_DLTREL21L: | |
3449 | case R_PARISC_DPREL21L: | |
3450 | case R_PARISC_DPREL14WR: | |
3451 | case R_PARISC_DPREL14DR: | |
3452 | case R_PARISC_DPREL14R: | |
3453 | case R_PARISC_DPREL14F: | |
3454 | case R_PARISC_GPREL16F: | |
3455 | case R_PARISC_GPREL16WF: | |
3456 | case R_PARISC_GPREL16DF: | |
3457 | { | |
3458 | /* Subtract out the global pointer value to make value a DLT | |
3459 | relative address. */ | |
3460 | value -= _bfd_get_gp_value (output_bfd); | |
3461 | ||
3462 | /* All DLTREL relocations are basically the same at this point, | |
3463 | except that we need different field selectors for the 21bit | |
3464 | version vs the 14bit versions. */ | |
3465 | if (r_type == R_PARISC_DLTREL21L | |
3466 | || r_type == R_PARISC_DPREL21L) | |
3467 | value = hppa_field_adjust (value, addend, e_lrsel); | |
3468 | else if (r_type == R_PARISC_DLTREL14F | |
3469 | || r_type == R_PARISC_DPREL14F | |
3470 | || r_type == R_PARISC_GPREL16F | |
3471 | || r_type == R_PARISC_GPREL16WF | |
3472 | || r_type == R_PARISC_GPREL16DF) | |
3473 | value = hppa_field_adjust (value, addend, e_fsel); | |
3474 | else | |
3475 | value = hppa_field_adjust (value, addend, e_rrsel); | |
3476 | ||
3477 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3478 | break; | |
3479 | } | |
3480 | ||
3481 | case R_PARISC_DIR21L: | |
3482 | case R_PARISC_DIR17R: | |
3483 | case R_PARISC_DIR17F: | |
3484 | case R_PARISC_DIR14R: | |
3485 | case R_PARISC_DIR14F: | |
3486 | case R_PARISC_DIR14WR: | |
3487 | case R_PARISC_DIR14DR: | |
3488 | case R_PARISC_DIR16F: | |
3489 | case R_PARISC_DIR16WF: | |
3490 | case R_PARISC_DIR16DF: | |
3491 | { | |
3492 | /* All DIR relocations are basically the same at this point, | |
3493 | except that branch offsets need to be divided by four, and | |
3494 | we need different field selectors. Note that we don't | |
3495 | redirect absolute calls to local stubs. */ | |
3496 | ||
3497 | if (r_type == R_PARISC_DIR21L) | |
3498 | value = hppa_field_adjust (value, addend, e_lrsel); | |
3499 | else if (r_type == R_PARISC_DIR17F | |
3500 | || r_type == R_PARISC_DIR16F | |
3501 | || r_type == R_PARISC_DIR16WF | |
3502 | || r_type == R_PARISC_DIR16DF | |
3503 | || r_type == R_PARISC_DIR14F) | |
3504 | value = hppa_field_adjust (value, addend, e_fsel); | |
3505 | else | |
3506 | value = hppa_field_adjust (value, addend, e_rrsel); | |
3507 | ||
3508 | if (r_type == R_PARISC_DIR17R || r_type == R_PARISC_DIR17F) | |
3509 | /* All branches are implicitly shifted by 2 places. */ | |
3510 | value >>= 2; | |
3511 | ||
3512 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3513 | break; | |
3514 | } | |
3515 | ||
3516 | case R_PARISC_PLTOFF21L: | |
3517 | case R_PARISC_PLTOFF14R: | |
3518 | case R_PARISC_PLTOFF14F: | |
3519 | case R_PARISC_PLTOFF14WR: | |
3520 | case R_PARISC_PLTOFF14DR: | |
3521 | case R_PARISC_PLTOFF16F: | |
3522 | case R_PARISC_PLTOFF16WF: | |
3523 | case R_PARISC_PLTOFF16DF: | |
3524 | { | |
3525 | /* We want the value of the PLT offset for this symbol, not | |
3526 | the symbol's actual address. Note that __gp may not point | |
3527 | to the start of the DLT, so we have to compute the absolute | |
3528 | address, then subtract out the value of __gp. */ | |
3529 | value = (hh->plt_offset | |
3530 | + hppa_info->plt_sec->output_offset | |
3531 | + hppa_info->plt_sec->output_section->vma); | |
3532 | value -= _bfd_get_gp_value (output_bfd); | |
3533 | ||
3534 | /* All PLTOFF relocations are basically the same at this point, | |
3535 | except that we need different field selectors for the 21bit | |
3536 | version vs the 14bit versions. */ | |
3537 | if (r_type == R_PARISC_PLTOFF21L) | |
3538 | value = hppa_field_adjust (value, addend, e_lrsel); | |
3539 | else if (r_type == R_PARISC_PLTOFF14F | |
3540 | || r_type == R_PARISC_PLTOFF16F | |
3541 | || r_type == R_PARISC_PLTOFF16WF | |
3542 | || r_type == R_PARISC_PLTOFF16DF) | |
3543 | value = hppa_field_adjust (value, addend, e_fsel); | |
3544 | else | |
3545 | value = hppa_field_adjust (value, addend, e_rrsel); | |
3546 | ||
3547 | insn = elf_hppa_relocate_insn (insn, (int) value, r_type); | |
3548 | break; | |
3549 | } | |
3550 | ||
3551 | case R_PARISC_LTOFF_FPTR32: | |
3552 | { | |
3553 | /* We may still need to create the FPTR itself if it was for | |
3554 | a local symbol. */ | |
3555 | if (hh == NULL) | |
3556 | { | |
3557 | /* The first two words of an .opd entry are zero. */ | |
3558 | memset (hppa_info->opd_sec->contents + hh->opd_offset, 0, 16); | |
3559 | ||
3560 | /* The next word is the address of the function. */ | |
3561 | bfd_put_64 (hppa_info->opd_sec->owner, value + addend, | |
3562 | (hppa_info->opd_sec->contents | |
3563 | + hh->opd_offset + 16)); | |
3564 | ||
3565 | /* The last word is our local __gp value. */ | |
3566 | value = _bfd_get_gp_value | |
3567 | (hppa_info->opd_sec->output_section->owner); | |
3568 | bfd_put_64 (hppa_info->opd_sec->owner, value, | |
3569 | hppa_info->opd_sec->contents + hh->opd_offset + 24); | |
3570 | ||
3571 | /* The DLT value is the address of the .opd entry. */ | |
3572 | value = (hh->opd_offset | |
3573 | + hppa_info->opd_sec->output_offset | |
3574 | + hppa_info->opd_sec->output_section->vma); | |
3575 | ||
3576 | bfd_put_64 (hppa_info->dlt_sec->owner, | |
3577 | value, | |
3578 | hppa_info->dlt_sec->contents + hh->dlt_offset); | |
3579 | } | |
3580 | ||
3581 | /* We want the value of the DLT offset for this symbol, not | |
3582 | the symbol's actual address. Note that __gp may not point | |
3583 | to the start of the DLT, so we have to compute the absolute | |
3584 | address, then subtract out the value of __gp. */ | |
3585 | value = (hh->dlt_offset | |
3586 | + hppa_info->dlt_sec->output_offset | |
3587 | + hppa_info->dlt_sec->output_section->vma); | |
3588 | value -= _bfd_get_gp_value (output_bfd); | |
3589 | bfd_put_32 (input_bfd, value, hit_data); | |
3590 | return bfd_reloc_ok; | |
3591 | } | |
3592 | ||
3593 | case R_PARISC_LTOFF_FPTR64: | |
3594 | case R_PARISC_LTOFF_TP64: | |
3595 | { | |
3596 | /* We may still need to create the FPTR itself if it was for | |
3597 | a local symbol. */ | |
3598 | if (eh == NULL && r_type == R_PARISC_LTOFF_FPTR64) | |
3599 | { | |
3600 | /* The first two words of an .opd entry are zero. */ | |
3601 | memset (hppa_info->opd_sec->contents + hh->opd_offset, 0, 16); | |
3602 | ||
3603 | /* The next word is the address of the function. */ | |
3604 | bfd_put_64 (hppa_info->opd_sec->owner, value + addend, | |
3605 | (hppa_info->opd_sec->contents | |
3606 | + hh->opd_offset + 16)); | |
3607 | ||
3608 | /* The last word is our local __gp value. */ | |
3609 | value = _bfd_get_gp_value | |
3610 | (hppa_info->opd_sec->output_section->owner); | |
3611 | bfd_put_64 (hppa_info->opd_sec->owner, value, | |
3612 | hppa_info->opd_sec->contents + hh->opd_offset + 24); | |
3613 | ||
3614 | /* The DLT value is the address of the .opd entry. */ | |
3615 | value = (hh->opd_offset | |
3616 | + hppa_info->opd_sec->output_offset | |
3617 | + hppa_info->opd_sec->output_section->vma); | |
3618 | ||
3619 | bfd_put_64 (hppa_info->dlt_sec->owner, | |
3620 | value, | |
3621 | hppa_info->dlt_sec->contents + hh->dlt_offset); | |
3622 | } | |
3623 | ||
3624 | /* We want the value of the DLT offset for this symbol, not | |
3625 | the symbol's actual address. Note that __gp may not point | |
3626 | to the start of the DLT, so we have to compute the absolute | |
3627 | address, then subtract out the value of __gp. */ | |
3628 | value = (hh->dlt_offset | |
3629 | + hppa_info->dlt_sec->output_offset | |
3630 | + hppa_info->dlt_sec->output_section->vma); | |
3631 | value -= _bfd_get_gp_value (output_bfd); | |
3632 | bfd_put_64 (input_bfd, value, hit_data); | |
3633 | return bfd_reloc_ok; | |
3634 | } | |
3635 | ||
3636 | case R_PARISC_DIR32: | |
3637 | bfd_put_32 (input_bfd, value + addend, hit_data); | |
3638 | return bfd_reloc_ok; | |
3639 | ||
3640 | case R_PARISC_DIR64: | |
3641 | bfd_put_64 (input_bfd, value + addend, hit_data); | |
3642 | return bfd_reloc_ok; | |
3643 | ||
3644 | case R_PARISC_GPREL64: | |
3645 | /* Subtract out the global pointer value to make value a DLT | |
3646 | relative address. */ | |
3647 | value -= _bfd_get_gp_value (output_bfd); | |
3648 | ||
3649 | bfd_put_64 (input_bfd, value + addend, hit_data); | |
3650 | return bfd_reloc_ok; | |
3651 | ||
3652 | case R_PARISC_LTOFF64: | |
3653 | /* We want the value of the DLT offset for this symbol, not | |
3654 | the symbol's actual address. Note that __gp may not point | |
3655 | to the start of the DLT, so we have to compute the absolute | |
3656 | address, then subtract out the value of __gp. */ | |
3657 | value = (hh->dlt_offset | |
3658 | + hppa_info->dlt_sec->output_offset | |
3659 | + hppa_info->dlt_sec->output_section->vma); | |
3660 | value -= _bfd_get_gp_value (output_bfd); | |
3661 | ||
3662 | bfd_put_64 (input_bfd, value + addend, hit_data); | |
3663 | return bfd_reloc_ok; | |
3664 | ||
3665 | case R_PARISC_PCREL32: | |
3666 | { | |
3667 | /* If this is a call to a function defined in another dynamic | |
3668 | library, then redirect the call to the local stub for this | |
3669 | function. */ | |
3670 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3671 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3672 | + hppa_info->stub_sec->output_section->vma); | |
3673 | ||
3674 | /* Turn VALUE into a proper PC relative address. */ | |
3675 | value -= (offset + input_section->output_offset | |
3676 | + input_section->output_section->vma); | |
3677 | ||
3678 | value += addend; | |
3679 | value -= 8; | |
3680 | bfd_put_32 (input_bfd, value, hit_data); | |
3681 | return bfd_reloc_ok; | |
3682 | } | |
3683 | ||
3684 | case R_PARISC_PCREL64: | |
3685 | { | |
3686 | /* If this is a call to a function defined in another dynamic | |
3687 | library, then redirect the call to the local stub for this | |
3688 | function. */ | |
3689 | if (sym_sec == NULL || sym_sec->output_section == NULL) | |
3690 | value = (hh->stub_offset + hppa_info->stub_sec->output_offset | |
3691 | + hppa_info->stub_sec->output_section->vma); | |
3692 | ||
3693 | /* Turn VALUE into a proper PC relative address. */ | |
3694 | value -= (offset + input_section->output_offset | |
3695 | + input_section->output_section->vma); | |
3696 | ||
3697 | value += addend; | |
3698 | value -= 8; | |
3699 | bfd_put_64 (input_bfd, value, hit_data); | |
3700 | return bfd_reloc_ok; | |
3701 | } | |
3702 | ||
3703 | case R_PARISC_FPTR64: | |
3704 | { | |
3705 | bfd_vma off; | |
3706 | ||
3707 | /* We may still need to create the FPTR itself if it was for | |
3708 | a local symbol. */ | |
3709 | if (hh == NULL) | |
3710 | { | |
3711 | bfd_vma *local_opd_offsets; | |
3712 | ||
3713 | if (local_offsets == NULL) | |
3714 | abort (); | |
3715 | ||
3716 | local_opd_offsets = local_offsets + 2 * symtab_hdr->sh_info; | |
3717 | off = local_opd_offsets[r_symndx]; | |
3718 | ||
3719 | /* The last bit records whether we've already initialised | |
3720 | this local .opd entry. */ | |
3721 | if ((off & 1) != 0) | |
3722 | { | |
3723 | BFD_ASSERT (off != (bfd_vma) -1); | |
3724 | off &= ~1; | |
3725 | } | |
3726 | else | |
3727 | { | |
3728 | /* The first two words of an .opd entry are zero. */ | |
3729 | memset (hppa_info->opd_sec->contents + off, 0, 16); | |
3730 | ||
3731 | /* The next word is the address of the function. */ | |
3732 | bfd_put_64 (hppa_info->opd_sec->owner, value + addend, | |
3733 | (hppa_info->opd_sec->contents + off + 16)); | |
3734 | ||
3735 | /* The last word is our local __gp value. */ | |
3736 | value = _bfd_get_gp_value | |
3737 | (hppa_info->opd_sec->output_section->owner); | |
3738 | bfd_put_64 (hppa_info->opd_sec->owner, value, | |
3739 | hppa_info->opd_sec->contents + off + 24); | |
3740 | } | |
3741 | } | |
3742 | else | |
3743 | off = hh->opd_offset; | |
3744 | ||
3745 | if (hh == NULL || hh->want_opd) | |
3746 | /* We want the value of the OPD offset for this symbol. */ | |
3747 | value = (off | |
3748 | + hppa_info->opd_sec->output_offset | |
3749 | + hppa_info->opd_sec->output_section->vma); | |
3750 | else | |
3751 | /* We want the address of the symbol. */ | |
3752 | value += addend; | |
3753 | ||
3754 | bfd_put_64 (input_bfd, value, hit_data); | |
3755 | return bfd_reloc_ok; | |
3756 | } | |
3757 | ||
3758 | case R_PARISC_SECREL32: | |
3759 | if (sym_sec) | |
3760 | value -= sym_sec->output_section->vma; | |
3761 | bfd_put_32 (input_bfd, value + addend, hit_data); | |
3762 | return bfd_reloc_ok; | |
3763 | ||
3764 | case R_PARISC_SEGREL32: | |
3765 | case R_PARISC_SEGREL64: | |
3766 | { | |
3767 | /* If this is the first SEGREL relocation, then initialize | |
3768 | the segment base values. */ | |
3769 | if (hppa_info->text_segment_base == (bfd_vma) -1) | |
3770 | bfd_map_over_sections (output_bfd, elf_hppa_record_segment_addrs, | |
3771 | hppa_info); | |
3772 | ||
3773 | /* VALUE holds the absolute address. We want to include the | |
3774 | addend, then turn it into a segment relative address. | |
3775 | ||
3776 | The segment is derived from SYM_SEC. We assume that there are | |
3777 | only two segments of note in the resulting executable/shlib. | |
3778 | A readonly segment (.text) and a readwrite segment (.data). */ | |
3779 | value += addend; | |
3780 | ||
3781 | if (sym_sec->flags & SEC_CODE) | |
3782 | value -= hppa_info->text_segment_base; | |
3783 | else | |
3784 | value -= hppa_info->data_segment_base; | |
3785 | ||
3786 | if (r_type == R_PARISC_SEGREL32) | |
3787 | bfd_put_32 (input_bfd, value, hit_data); | |
3788 | else | |
3789 | bfd_put_64 (input_bfd, value, hit_data); | |
3790 | return bfd_reloc_ok; | |
3791 | } | |
3792 | ||
3793 | /* Something we don't know how to handle. */ | |
3794 | default: | |
3795 | return bfd_reloc_notsupported; | |
3796 | } | |
3797 | ||
3798 | /* Update the instruction word. */ | |
3799 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); | |
3800 | return bfd_reloc_ok; | |
3801 | } | |
3802 | ||
3803 | /* Relocate an HPPA ELF section. */ | |
3804 | ||
3805 | static bfd_boolean | |
3806 | elf64_hppa_relocate_section (bfd *output_bfd, | |
3807 | struct bfd_link_info *info, | |
3808 | bfd *input_bfd, | |
3809 | asection *input_section, | |
3810 | bfd_byte *contents, | |
3811 | Elf_Internal_Rela *relocs, | |
3812 | Elf_Internal_Sym *local_syms, | |
3813 | asection **local_sections) | |
3814 | { | |
3815 | Elf_Internal_Shdr *symtab_hdr; | |
3816 | Elf_Internal_Rela *rel; | |
3817 | Elf_Internal_Rela *relend; | |
3818 | struct elf64_hppa_link_hash_table *hppa_info; | |
3819 | ||
3820 | hppa_info = hppa_link_hash_table (info); | |
4dfe6ac6 NC |
3821 | if (hppa_info == NULL) |
3822 | return FALSE; | |
3823 | ||
5887528b DA |
3824 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
3825 | ||
3826 | rel = relocs; | |
3827 | relend = relocs + input_section->reloc_count; | |
3828 | for (; rel < relend; rel++) | |
3829 | { | |
3830 | int r_type; | |
3831 | reloc_howto_type *howto = elf_hppa_howto_table + ELF_R_TYPE (rel->r_info); | |
3832 | unsigned long r_symndx; | |
3833 | struct elf_link_hash_entry *eh; | |
3834 | Elf_Internal_Sym *sym; | |
3835 | asection *sym_sec; | |
3836 | bfd_vma relocation; | |
3837 | bfd_reloc_status_type r; | |
5887528b DA |
3838 | |
3839 | r_type = ELF_R_TYPE (rel->r_info); | |
3840 | if (r_type < 0 || r_type >= (int) R_PARISC_UNIMPLEMENTED) | |
3841 | { | |
3842 | bfd_set_error (bfd_error_bad_value); | |
3843 | return FALSE; | |
3844 | } | |
3845 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3846 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3847 | continue; | |
3848 | ||
3849 | /* This is a final link. */ | |
3850 | r_symndx = ELF_R_SYM (rel->r_info); | |
3851 | eh = NULL; | |
3852 | sym = NULL; | |
3853 | sym_sec = NULL; | |
5887528b DA |
3854 | if (r_symndx < symtab_hdr->sh_info) |
3855 | { | |
3856 | /* This is a local symbol, hh defaults to NULL. */ | |
3857 | sym = local_syms + r_symndx; | |
3858 | sym_sec = local_sections[r_symndx]; | |
3859 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rel); | |
3860 | } | |
3861 | else | |
3862 | { | |
3863 | /* This is not a local symbol. */ | |
5887528b DA |
3864 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); |
3865 | ||
68ffbac6 | 3866 | /* It seems this can happen with erroneous or unsupported |
5887528b DA |
3867 | input (mixing a.out and elf in an archive, for example.) */ |
3868 | if (sym_hashes == NULL) | |
3869 | return FALSE; | |
3870 | ||
3871 | eh = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
3872 | ||
68ffbac6 | 3873 | while (eh->root.type == bfd_link_hash_indirect |
5887528b DA |
3874 | || eh->root.type == bfd_link_hash_warning) |
3875 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
3876 | ||
5887528b DA |
3877 | relocation = 0; |
3878 | if (eh->root.type == bfd_link_hash_defined | |
3879 | || eh->root.type == bfd_link_hash_defweak) | |
3880 | { | |
3881 | sym_sec = eh->root.u.def.section; | |
c7e2358a AM |
3882 | if (sym_sec != NULL |
3883 | && sym_sec->output_section != NULL) | |
5887528b DA |
3884 | relocation = (eh->root.u.def.value |
3885 | + sym_sec->output_section->vma | |
3886 | + sym_sec->output_offset); | |
3887 | } | |
3888 | else if (eh->root.type == bfd_link_hash_undefweak) | |
3889 | ; | |
3890 | else if (info->unresolved_syms_in_objects == RM_IGNORE | |
3891 | && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT) | |
3892 | ; | |
3893 | else if (!info->relocatable | |
3894 | && elf_hppa_is_dynamic_loader_symbol (eh->root.root.string)) | |
3895 | continue; | |
3896 | else if (!info->relocatable) | |
3897 | { | |
3898 | bfd_boolean err; | |
3899 | err = (info->unresolved_syms_in_objects == RM_GENERATE_ERROR | |
3900 | || ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT); | |
3901 | if (!info->callbacks->undefined_symbol (info, | |
3902 | eh->root.root.string, | |
3903 | input_bfd, | |
3904 | input_section, | |
3905 | rel->r_offset, err)) | |
3906 | return FALSE; | |
5887528b DA |
3907 | } |
3908 | ||
3909 | if (!info->relocatable | |
3910 | && relocation == 0 | |
3911 | && eh->root.type != bfd_link_hash_defined | |
3912 | && eh->root.type != bfd_link_hash_defweak | |
3913 | && eh->root.type != bfd_link_hash_undefweak) | |
3914 | { | |
3915 | if (info->unresolved_syms_in_objects == RM_IGNORE | |
3916 | && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT | |
3917 | && eh->type == STT_PARISC_MILLI) | |
3918 | { | |
3919 | if (! info->callbacks->undefined_symbol | |
3920 | (info, eh_name (eh), input_bfd, | |
3921 | input_section, rel->r_offset, FALSE)) | |
3922 | return FALSE; | |
5887528b DA |
3923 | } |
3924 | } | |
3925 | } | |
3926 | ||
dbaa2011 | 3927 | if (sym_sec != NULL && discarded_section (sym_sec)) |
e4067dbb | 3928 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 3929 | rel, 1, relend, howto, 0, contents); |
5887528b DA |
3930 | |
3931 | if (info->relocatable) | |
3932 | continue; | |
3933 | ||
3934 | r = elf_hppa_final_link_relocate (rel, input_bfd, output_bfd, | |
3935 | input_section, contents, | |
3936 | relocation, info, sym_sec, | |
3937 | eh); | |
3938 | ||
3939 | if (r != bfd_reloc_ok) | |
3940 | { | |
3941 | switch (r) | |
3942 | { | |
3943 | default: | |
3944 | abort (); | |
3945 | case bfd_reloc_overflow: | |
3946 | { | |
3947 | const char *sym_name; | |
3948 | ||
3949 | if (eh != NULL) | |
3950 | sym_name = NULL; | |
3951 | else | |
3952 | { | |
3953 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
3954 | symtab_hdr->sh_link, | |
3955 | sym->st_name); | |
3956 | if (sym_name == NULL) | |
3957 | return FALSE; | |
3958 | if (*sym_name == '\0') | |
3959 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
3960 | } | |
3961 | ||
3962 | if (!((*info->callbacks->reloc_overflow) | |
3963 | (info, (eh ? &eh->root : NULL), sym_name, | |
3964 | howto->name, (bfd_vma) 0, input_bfd, | |
3965 | input_section, rel->r_offset))) | |
3966 | return FALSE; | |
3967 | } | |
3968 | break; | |
3969 | } | |
3970 | } | |
3971 | } | |
3972 | return TRUE; | |
3973 | } | |
3974 | ||
b35d266b | 3975 | static const struct bfd_elf_special_section elf64_hppa_special_sections[] = |
2f89ff8d | 3976 | { |
0112cd26 NC |
3977 | { STRING_COMMA_LEN (".fini"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
3978 | { STRING_COMMA_LEN (".init"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
3979 | { STRING_COMMA_LEN (".plt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, | |
3980 | { STRING_COMMA_LEN (".dlt"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, | |
3981 | { STRING_COMMA_LEN (".sdata"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, | |
3982 | { STRING_COMMA_LEN (".sbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_PARISC_SHORT }, | |
3983 | { STRING_COMMA_LEN (".tbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_HP_TLS }, | |
3984 | { NULL, 0, 0, 0, 0 } | |
2f89ff8d L |
3985 | }; |
3986 | ||
15bda425 JL |
3987 | /* The hash bucket size is the standard one, namely 4. */ |
3988 | ||
3989 | const struct elf_size_info hppa64_elf_size_info = | |
3990 | { | |
3991 | sizeof (Elf64_External_Ehdr), | |
3992 | sizeof (Elf64_External_Phdr), | |
3993 | sizeof (Elf64_External_Shdr), | |
3994 | sizeof (Elf64_External_Rel), | |
3995 | sizeof (Elf64_External_Rela), | |
3996 | sizeof (Elf64_External_Sym), | |
3997 | sizeof (Elf64_External_Dyn), | |
3998 | sizeof (Elf_External_Note), | |
3999 | 4, | |
4000 | 1, | |
45d6a902 | 4001 | 64, 3, |
15bda425 JL |
4002 | ELFCLASS64, EV_CURRENT, |
4003 | bfd_elf64_write_out_phdrs, | |
4004 | bfd_elf64_write_shdrs_and_ehdr, | |
1489a3a0 | 4005 | bfd_elf64_checksum_contents, |
15bda425 | 4006 | bfd_elf64_write_relocs, |
73ff0d56 | 4007 | bfd_elf64_swap_symbol_in, |
15bda425 JL |
4008 | bfd_elf64_swap_symbol_out, |
4009 | bfd_elf64_slurp_reloc_table, | |
4010 | bfd_elf64_slurp_symbol_table, | |
4011 | bfd_elf64_swap_dyn_in, | |
4012 | bfd_elf64_swap_dyn_out, | |
947216bf AM |
4013 | bfd_elf64_swap_reloc_in, |
4014 | bfd_elf64_swap_reloc_out, | |
4015 | bfd_elf64_swap_reloca_in, | |
4016 | bfd_elf64_swap_reloca_out | |
15bda425 JL |
4017 | }; |
4018 | ||
4019 | #define TARGET_BIG_SYM bfd_elf64_hppa_vec | |
4020 | #define TARGET_BIG_NAME "elf64-hppa" | |
4021 | #define ELF_ARCH bfd_arch_hppa | |
ae95ffa6 | 4022 | #define ELF_TARGET_ID HPPA64_ELF_DATA |
15bda425 JL |
4023 | #define ELF_MACHINE_CODE EM_PARISC |
4024 | /* This is not strictly correct. The maximum page size for PA2.0 is | |
4025 | 64M. But everything still uses 4k. */ | |
4026 | #define ELF_MAXPAGESIZE 0x1000 | |
d1036acb L |
4027 | #define ELF_OSABI ELFOSABI_HPUX |
4028 | ||
15bda425 | 4029 | #define bfd_elf64_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup |
157090f7 | 4030 | #define bfd_elf64_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup |
15bda425 JL |
4031 | #define bfd_elf64_bfd_is_local_label_name elf_hppa_is_local_label_name |
4032 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4033 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
4034 | ||
4035 | #define elf_backend_section_from_shdr elf64_hppa_section_from_shdr | |
4036 | #define elf_backend_object_p elf64_hppa_object_p | |
4037 | #define elf_backend_final_write_processing \ | |
4038 | elf_hppa_final_write_processing | |
99c79b2e | 4039 | #define elf_backend_fake_sections elf_hppa_fake_sections |
15bda425 JL |
4040 | #define elf_backend_add_symbol_hook elf_hppa_add_symbol_hook |
4041 | ||
f0fe0e16 | 4042 | #define elf_backend_relocate_section elf_hppa_relocate_section |
15bda425 JL |
4043 | |
4044 | #define bfd_elf64_bfd_final_link elf_hppa_final_link | |
4045 | ||
4046 | #define elf_backend_create_dynamic_sections \ | |
4047 | elf64_hppa_create_dynamic_sections | |
4048 | #define elf_backend_post_process_headers elf64_hppa_post_process_headers | |
4049 | ||
74541ad4 AM |
4050 | #define elf_backend_omit_section_dynsym \ |
4051 | ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true) | |
15bda425 JL |
4052 | #define elf_backend_adjust_dynamic_symbol \ |
4053 | elf64_hppa_adjust_dynamic_symbol | |
4054 | ||
4055 | #define elf_backend_size_dynamic_sections \ | |
4056 | elf64_hppa_size_dynamic_sections | |
4057 | ||
4058 | #define elf_backend_finish_dynamic_symbol \ | |
4059 | elf64_hppa_finish_dynamic_symbol | |
4060 | #define elf_backend_finish_dynamic_sections \ | |
4061 | elf64_hppa_finish_dynamic_sections | |
235ecfbc NC |
4062 | #define elf_backend_grok_prstatus elf64_hppa_grok_prstatus |
4063 | #define elf_backend_grok_psinfo elf64_hppa_grok_psinfo | |
68ffbac6 | 4064 | |
15bda425 JL |
4065 | /* Stuff for the BFD linker: */ |
4066 | #define bfd_elf64_bfd_link_hash_table_create \ | |
4067 | elf64_hppa_hash_table_create | |
4068 | ||
4069 | #define elf_backend_check_relocs \ | |
4070 | elf64_hppa_check_relocs | |
4071 | ||
4072 | #define elf_backend_size_info \ | |
4073 | hppa64_elf_size_info | |
4074 | ||
4075 | #define elf_backend_additional_program_headers \ | |
4076 | elf64_hppa_additional_program_headers | |
4077 | ||
4078 | #define elf_backend_modify_segment_map \ | |
4079 | elf64_hppa_modify_segment_map | |
4080 | ||
4081 | #define elf_backend_link_output_symbol_hook \ | |
4082 | elf64_hppa_link_output_symbol_hook | |
4083 | ||
15bda425 JL |
4084 | #define elf_backend_want_got_plt 0 |
4085 | #define elf_backend_plt_readonly 0 | |
4086 | #define elf_backend_want_plt_sym 0 | |
4087 | #define elf_backend_got_header_size 0 | |
b34976b6 AM |
4088 | #define elf_backend_type_change_ok TRUE |
4089 | #define elf_backend_get_symbol_type elf64_hppa_elf_get_symbol_type | |
4090 | #define elf_backend_reloc_type_class elf64_hppa_reloc_type_class | |
4091 | #define elf_backend_rela_normal 1 | |
29ef7005 | 4092 | #define elf_backend_special_sections elf64_hppa_special_sections |
8a696751 | 4093 | #define elf_backend_action_discarded elf_hppa_action_discarded |
d97a8924 | 4094 | #define elf_backend_section_from_phdr elf64_hppa_section_from_phdr |
15bda425 | 4095 | |
83d1651b L |
4096 | #define elf64_bed elf64_hppa_hpux_bed |
4097 | ||
15bda425 | 4098 | #include "elf64-target.h" |
d952f17a AM |
4099 | |
4100 | #undef TARGET_BIG_SYM | |
4101 | #define TARGET_BIG_SYM bfd_elf64_hppa_linux_vec | |
4102 | #undef TARGET_BIG_NAME | |
4103 | #define TARGET_BIG_NAME "elf64-hppa-linux" | |
d1036acb | 4104 | #undef ELF_OSABI |
9c55345c | 4105 | #define ELF_OSABI ELFOSABI_GNU |
d1036acb L |
4106 | #undef elf_backend_post_process_headers |
4107 | #define elf_backend_post_process_headers _bfd_elf_set_osabi | |
83d1651b L |
4108 | #undef elf64_bed |
4109 | #define elf64_bed elf64_hppa_linux_bed | |
d952f17a | 4110 | |
d952f17a | 4111 | #include "elf64-target.h" |