1 1.1 christos /* BFD back-end for HP PA-RISC ELF files. 2 1.1.1.12 christos Copyright (C) 1990-2025 Free Software Foundation, Inc. 3 1.1 christos 4 1.1 christos Original code by 5 1.1 christos Center for Software Science 6 1.1 christos Department of Computer Science 7 1.1 christos University of Utah 8 1.1 christos Largely rewritten by Alan Modra <alan (at) linuxcare.com.au> 9 1.1 christos Naming cleanup by Carlos O'Donell <carlos (at) systemhalted.org> 10 1.1 christos TLS support written by Randolph Chung <tausq (at) debian.org> 11 1.1.1.2 christos 12 1.1 christos This file is part of BFD, the Binary File Descriptor library. 13 1.1 christos 14 1.1 christos This program is free software; you can redistribute it and/or modify 15 1.1 christos it under the terms of the GNU General Public License as published by 16 1.1 christos the Free Software Foundation; either version 3 of the License, or 17 1.1 christos (at your option) any later version. 18 1.1 christos 19 1.1 christos This program is distributed in the hope that it will be useful, 20 1.1 christos but WITHOUT ANY WARRANTY; without even the implied warranty of 21 1.1 christos MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 22 1.1 christos GNU General Public License for more details. 23 1.1 christos 24 1.1 christos You should have received a copy of the GNU General Public License 25 1.1 christos along with this program; if not, write to the Free Software 26 1.1 christos Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 27 1.1 christos MA 02110-1301, USA. */ 28 1.1 christos 29 1.1 christos #include "sysdep.h" 30 1.1 christos #include "bfd.h" 31 1.1 christos #include "libbfd.h" 32 1.1 christos #include "elf-bfd.h" 33 1.1 christos #include "elf/hppa.h" 34 1.1 christos #include "libhppa.h" 35 1.1 christos #include "elf32-hppa.h" 36 1.1 christos #define ARCH_SIZE 32 37 1.1 christos #include "elf32-hppa.h" 38 1.1 christos #include "elf-hppa.h" 39 1.1 christos 40 1.1 christos /* In order to gain some understanding of code in this file without 41 1.1 christos knowing all the intricate details of the linker, note the 42 1.1 christos following: 43 1.1 christos 44 1.1 christos Functions named elf32_hppa_* are called by external routines, other 45 1.1 christos functions are only called locally. elf32_hppa_* functions appear 46 1.1 christos in this file more or less in the order in which they are called 47 1.1 christos from external routines. eg. elf32_hppa_check_relocs is called 48 1.1 christos early in the link process, elf32_hppa_finish_dynamic_sections is 49 1.1 christos one of the last functions. */ 50 1.1 christos 51 1.1 christos /* We use two hash tables to hold information for linking PA ELF objects. 52 1.1 christos 53 1.1 christos The first is the elf32_hppa_link_hash_table which is derived 54 1.1 christos from the standard ELF linker hash table. We use this as a place to 55 1.1 christos attach other hash tables and static information. 56 1.1 christos 57 1.1 christos The second is the stub hash table which is derived from the 58 1.1 christos base BFD hash table. The stub hash table holds the information 59 1.1 christos necessary to build the linker stubs during a link. 60 1.1 christos 61 1.1 christos There are a number of different stubs generated by the linker. 62 1.1 christos 63 1.1 christos Long branch stub: 64 1.1 christos : ldil LR'X,%r1 65 1.1 christos : be,n RR'X(%sr4,%r1) 66 1.1 christos 67 1.1 christos PIC long branch stub: 68 1.1 christos : b,l .+8,%r1 69 1.1 christos : addil LR'X - ($PIC_pcrel$0 - 4),%r1 70 1.1 christos : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1) 71 1.1 christos 72 1.1 christos Import stub to call shared library routine from normal object file 73 1.1 christos (single sub-space version) 74 1.1.1.8 christos : addil LR'lt_ptr+ltoff,%dp ; get PLT address 75 1.1.1.8 christos : ldo RR'lt_ptr+ltoff(%r1),%r22 ; 76 1.1.1.8 christos : ldw 0(%r22),%r21 ; get procedure entry point 77 1.1 christos : bv %r0(%r21) 78 1.1.1.8 christos : ldw 4(%r22),%r19 ; get new dlt value. 79 1.1 christos 80 1.1 christos Import stub to call shared library routine from shared library 81 1.1 christos (single sub-space version) 82 1.1.1.8 christos : addil LR'ltoff,%r19 ; get PLT address 83 1.1.1.8 christos : ldo RR'ltoff(%r1),%r22 84 1.1.1.8 christos : ldw 0(%r22),%r21 ; get procedure entry point 85 1.1 christos : bv %r0(%r21) 86 1.1.1.8 christos : ldw 4(%r22),%r19 ; get new dlt value. 87 1.1 christos 88 1.1 christos Import stub to call shared library routine from normal object file 89 1.1 christos (multiple sub-space support) 90 1.1.1.8 christos : addil LR'lt_ptr+ltoff,%dp ; get PLT address 91 1.1.1.8 christos : ldo RR'lt_ptr+ltoff(%r1),%r22 ; 92 1.1.1.8 christos : ldw 0(%r22),%r21 ; get procedure entry point 93 1.1.1.8 christos : ldsid (%r21),%r1 ; get target sid 94 1.1.1.8 christos : ldw 4(%r22),%r19 ; get new dlt value. 95 1.1 christos : mtsp %r1,%sr0 96 1.1 christos : be 0(%sr0,%r21) ; branch to target 97 1.1 christos : stw %rp,-24(%sp) ; save rp 98 1.1 christos 99 1.1 christos Import stub to call shared library routine from shared library 100 1.1 christos (multiple sub-space support) 101 1.1.1.8 christos : addil LR'ltoff,%r19 ; get PLT address 102 1.1.1.8 christos : ldo RR'ltoff(%r1),%r22 103 1.1.1.8 christos : ldw 0(%r22),%r21 ; get procedure entry point 104 1.1.1.8 christos : ldsid (%r21),%r1 ; get target sid 105 1.1.1.8 christos : ldw 4(%r22),%r19 ; get new dlt value. 106 1.1 christos : mtsp %r1,%sr0 107 1.1 christos : be 0(%sr0,%r21) ; branch to target 108 1.1 christos : stw %rp,-24(%sp) ; save rp 109 1.1 christos 110 1.1 christos Export stub to return from shared lib routine (multiple sub-space support) 111 1.1 christos One of these is created for each exported procedure in a shared 112 1.1 christos library (and stored in the shared lib). Shared lib routines are 113 1.1 christos called via the first instruction in the export stub so that we can 114 1.1 christos do an inter-space return. Not required for single sub-space. 115 1.1 christos : bl,n X,%rp ; trap the return 116 1.1 christos : nop 117 1.1 christos : ldw -24(%sp),%rp ; restore the original rp 118 1.1 christos : ldsid (%rp),%r1 119 1.1 christos : mtsp %r1,%sr0 120 1.1 christos : be,n 0(%sr0,%rp) ; inter-space return. */ 121 1.1 christos 122 1.1 christos 123 1.1 christos /* Variable names follow a coding style. 124 1.1 christos Please follow this (Apps Hungarian) style: 125 1.1 christos 126 1.1.1.7 christos Structure/Variable Prefix 127 1.1 christos elf_link_hash_table "etab" 128 1.1 christos elf_link_hash_entry "eh" 129 1.1.1.2 christos 130 1.1 christos elf32_hppa_link_hash_table "htab" 131 1.1 christos elf32_hppa_link_hash_entry "hh" 132 1.1 christos 133 1.1 christos bfd_hash_table "btab" 134 1.1 christos bfd_hash_entry "bh" 135 1.1.1.2 christos 136 1.1 christos bfd_hash_table containing stubs "bstab" 137 1.1 christos elf32_hppa_stub_hash_entry "hsh" 138 1.1 christos 139 1.1 christos Always remember to use GNU Coding Style. */ 140 1.1.1.2 christos 141 1.1 christos #define PLT_ENTRY_SIZE 8 142 1.1 christos #define GOT_ENTRY_SIZE 4 143 1.1.1.8 christos #define LONG_BRANCH_STUB_SIZE 8 144 1.1.1.8 christos #define LONG_BRANCH_SHARED_STUB_SIZE 12 145 1.1.1.8 christos #define IMPORT_STUB_SIZE 20 146 1.1.1.8 christos #define IMPORT_SHARED_STUB_SIZE 32 147 1.1.1.8 christos #define EXPORT_STUB_SIZE 24 148 1.1 christos #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" 149 1.1 christos 150 1.1 christos static const bfd_byte plt_stub[] = 151 1.1 christos { 152 1.1.1.8 christos 0x0e, 0x80, 0x10, 0x95, /* 1: ldw 0(%r20),%r21 */ 153 1.1.1.8 christos 0xea, 0xa0, 0xc0, 0x00, /* bv %r0(%r21) */ 154 1.1 christos 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */ 155 1.1 christos #define PLT_STUB_ENTRY (3*4) 156 1.1 christos 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */ 157 1.1 christos 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */ 158 1.1 christos 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */ 159 1.1 christos 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */ 160 1.1 christos }; 161 1.1 christos 162 1.1 christos /* Section name for stubs is the associated section name plus this 163 1.1 christos string. */ 164 1.1 christos #define STUB_SUFFIX ".stub" 165 1.1 christos 166 1.1 christos /* We don't need to copy certain PC- or GP-relative dynamic relocs 167 1.1 christos into a shared object's dynamic section. All the relocs of the 168 1.1 christos limited class we are interested in, are absolute. */ 169 1.1 christos #ifndef RELATIVE_DYNRELOCS 170 1.1 christos #define RELATIVE_DYNRELOCS 0 171 1.1 christos #define IS_ABSOLUTE_RELOC(r_type) 1 172 1.1.1.7 christos #define pc_dynrelocs(hh) 0 173 1.1 christos #endif 174 1.1 christos 175 1.1 christos /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid 176 1.1 christos copying dynamic variables from a shared lib into an app's dynbss 177 1.1 christos section, and instead use a dynamic relocation to point into the 178 1.1 christos shared lib. */ 179 1.1 christos #define ELIMINATE_COPY_RELOCS 1 180 1.1 christos 181 1.1 christos enum elf32_hppa_stub_type 182 1.1 christos { 183 1.1 christos hppa_stub_long_branch, 184 1.1 christos hppa_stub_long_branch_shared, 185 1.1 christos hppa_stub_import, 186 1.1 christos hppa_stub_import_shared, 187 1.1 christos hppa_stub_export, 188 1.1 christos hppa_stub_none 189 1.1 christos }; 190 1.1 christos 191 1.1 christos struct elf32_hppa_stub_hash_entry 192 1.1 christos { 193 1.1 christos /* Base hash table entry structure. */ 194 1.1 christos struct bfd_hash_entry bh_root; 195 1.1 christos 196 1.1 christos /* The stub section. */ 197 1.1 christos asection *stub_sec; 198 1.1 christos 199 1.1 christos /* Offset within stub_sec of the beginning of this stub. */ 200 1.1 christos bfd_vma stub_offset; 201 1.1 christos 202 1.1 christos /* Given the symbol's value and its section we can determine its final 203 1.1 christos value when building the stubs (so the stub knows where to jump. */ 204 1.1 christos bfd_vma target_value; 205 1.1 christos asection *target_section; 206 1.1 christos 207 1.1 christos enum elf32_hppa_stub_type stub_type; 208 1.1 christos 209 1.1 christos /* The symbol table entry, if any, that this was derived from. */ 210 1.1 christos struct elf32_hppa_link_hash_entry *hh; 211 1.1 christos 212 1.1 christos /* Where this stub is being called from, or, in the case of combined 213 1.1 christos stub sections, the first input section in the group. */ 214 1.1 christos asection *id_sec; 215 1.1 christos }; 216 1.1 christos 217 1.1.1.7 christos enum _tls_type 218 1.1.1.7 christos { 219 1.1.1.7 christos GOT_UNKNOWN = 0, 220 1.1.1.7 christos GOT_NORMAL = 1, 221 1.1.1.7 christos GOT_TLS_GD = 2, 222 1.1.1.7 christos GOT_TLS_LDM = 4, 223 1.1.1.7 christos GOT_TLS_IE = 8 224 1.1.1.7 christos }; 225 1.1.1.7 christos 226 1.1 christos struct elf32_hppa_link_hash_entry 227 1.1 christos { 228 1.1 christos struct elf_link_hash_entry eh; 229 1.1 christos 230 1.1 christos /* A pointer to the most recently used stub hash entry against this 231 1.1 christos symbol. */ 232 1.1 christos struct elf32_hppa_stub_hash_entry *hsh_cache; 233 1.1 christos 234 1.1.1.7 christos ENUM_BITFIELD (_tls_type) tls_type : 8; 235 1.1 christos 236 1.1 christos /* Set if this symbol is used by a plabel reloc. */ 237 1.1 christos unsigned int plabel:1; 238 1.1 christos }; 239 1.1 christos 240 1.1 christos struct elf32_hppa_link_hash_table 241 1.1 christos { 242 1.1 christos /* The main hash table. */ 243 1.1 christos struct elf_link_hash_table etab; 244 1.1 christos 245 1.1 christos /* The stub hash table. */ 246 1.1 christos struct bfd_hash_table bstab; 247 1.1 christos 248 1.1 christos /* Linker stub bfd. */ 249 1.1 christos bfd *stub_bfd; 250 1.1 christos 251 1.1 christos /* Linker call-backs. */ 252 1.1 christos asection * (*add_stub_section) (const char *, asection *); 253 1.1 christos void (*layout_sections_again) (void); 254 1.1 christos 255 1.1 christos /* Array to keep track of which stub sections have been created, and 256 1.1 christos information on stub grouping. */ 257 1.1 christos struct map_stub 258 1.1 christos { 259 1.1 christos /* This is the section to which stubs in the group will be 260 1.1 christos attached. */ 261 1.1 christos asection *link_sec; 262 1.1 christos /* The stub section. */ 263 1.1 christos asection *stub_sec; 264 1.1 christos } *stub_group; 265 1.1 christos 266 1.1 christos /* Assorted information used by elf32_hppa_size_stubs. */ 267 1.1 christos unsigned int bfd_count; 268 1.1.1.5 christos unsigned int top_index; 269 1.1 christos asection **input_list; 270 1.1 christos Elf_Internal_Sym **all_local_syms; 271 1.1 christos 272 1.1 christos /* Used during a final link to store the base of the text and data 273 1.1 christos segments so that we can perform SEGREL relocations. */ 274 1.1 christos bfd_vma text_segment_base; 275 1.1 christos bfd_vma data_segment_base; 276 1.1 christos 277 1.1 christos /* Whether we support multiple sub-spaces for shared libs. */ 278 1.1 christos unsigned int multi_subspace:1; 279 1.1 christos 280 1.1 christos /* Flags set when various size branches are detected. Used to 281 1.1 christos select suitable defaults for the stub group size. */ 282 1.1 christos unsigned int has_12bit_branch:1; 283 1.1 christos unsigned int has_17bit_branch:1; 284 1.1 christos unsigned int has_22bit_branch:1; 285 1.1 christos 286 1.1 christos /* Set if we need a .plt stub to support lazy dynamic linking. */ 287 1.1 christos unsigned int need_plt_stub:1; 288 1.1 christos 289 1.1 christos /* Data for LDM relocations. */ 290 1.1 christos union 291 1.1 christos { 292 1.1 christos bfd_signed_vma refcount; 293 1.1 christos bfd_vma offset; 294 1.1 christos } tls_ldm_got; 295 1.1 christos }; 296 1.1 christos 297 1.1 christos /* Various hash macros and functions. */ 298 1.1 christos #define hppa_link_hash_table(p) \ 299 1.1.1.8 christos ((is_elf_hash_table ((p)->hash) \ 300 1.1.1.8 christos && elf_hash_table_id (elf_hash_table (p)) == HPPA32_ELF_DATA) \ 301 1.1.1.8 christos ? (struct elf32_hppa_link_hash_table *) (p)->hash : NULL) 302 1.1 christos 303 1.1 christos #define hppa_elf_hash_entry(ent) \ 304 1.1 christos ((struct elf32_hppa_link_hash_entry *)(ent)) 305 1.1 christos 306 1.1 christos #define hppa_stub_hash_entry(ent) \ 307 1.1 christos ((struct elf32_hppa_stub_hash_entry *)(ent)) 308 1.1 christos 309 1.1 christos #define hppa_stub_hash_lookup(table, string, create, copy) \ 310 1.1 christos ((struct elf32_hppa_stub_hash_entry *) \ 311 1.1 christos bfd_hash_lookup ((table), (string), (create), (copy))) 312 1.1 christos 313 1.1 christos #define hppa_elf_local_got_tls_type(abfd) \ 314 1.1 christos ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2))) 315 1.1 christos 316 1.1 christos #define hh_name(hh) \ 317 1.1 christos (hh ? hh->eh.root.root.string : "<undef>") 318 1.1 christos 319 1.1 christos #define eh_name(eh) \ 320 1.1 christos (eh ? eh->root.root.string : "<undef>") 321 1.1 christos 322 1.1 christos /* Assorted hash table functions. */ 323 1.1 christos 324 1.1 christos /* Initialize an entry in the stub hash table. */ 325 1.1 christos 326 1.1 christos static struct bfd_hash_entry * 327 1.1 christos stub_hash_newfunc (struct bfd_hash_entry *entry, 328 1.1 christos struct bfd_hash_table *table, 329 1.1 christos const char *string) 330 1.1 christos { 331 1.1 christos /* Allocate the structure if it has not already been allocated by a 332 1.1 christos subclass. */ 333 1.1 christos if (entry == NULL) 334 1.1 christos { 335 1.1 christos entry = bfd_hash_allocate (table, 336 1.1 christos sizeof (struct elf32_hppa_stub_hash_entry)); 337 1.1 christos if (entry == NULL) 338 1.1 christos return entry; 339 1.1 christos } 340 1.1 christos 341 1.1 christos /* Call the allocation method of the superclass. */ 342 1.1 christos entry = bfd_hash_newfunc (entry, table, string); 343 1.1 christos if (entry != NULL) 344 1.1 christos { 345 1.1 christos struct elf32_hppa_stub_hash_entry *hsh; 346 1.1 christos 347 1.1 christos /* Initialize the local fields. */ 348 1.1 christos hsh = hppa_stub_hash_entry (entry); 349 1.1 christos hsh->stub_sec = NULL; 350 1.1 christos hsh->stub_offset = 0; 351 1.1 christos hsh->target_value = 0; 352 1.1 christos hsh->target_section = NULL; 353 1.1 christos hsh->stub_type = hppa_stub_long_branch; 354 1.1 christos hsh->hh = NULL; 355 1.1 christos hsh->id_sec = NULL; 356 1.1 christos } 357 1.1 christos 358 1.1 christos return entry; 359 1.1 christos } 360 1.1 christos 361 1.1 christos /* Initialize an entry in the link hash table. */ 362 1.1 christos 363 1.1 christos static struct bfd_hash_entry * 364 1.1 christos hppa_link_hash_newfunc (struct bfd_hash_entry *entry, 365 1.1 christos struct bfd_hash_table *table, 366 1.1 christos const char *string) 367 1.1 christos { 368 1.1 christos /* Allocate the structure if it has not already been allocated by a 369 1.1 christos subclass. */ 370 1.1 christos if (entry == NULL) 371 1.1 christos { 372 1.1 christos entry = bfd_hash_allocate (table, 373 1.1 christos sizeof (struct elf32_hppa_link_hash_entry)); 374 1.1 christos if (entry == NULL) 375 1.1 christos return entry; 376 1.1 christos } 377 1.1 christos 378 1.1 christos /* Call the allocation method of the superclass. */ 379 1.1 christos entry = _bfd_elf_link_hash_newfunc (entry, table, string); 380 1.1 christos if (entry != NULL) 381 1.1 christos { 382 1.1 christos struct elf32_hppa_link_hash_entry *hh; 383 1.1 christos 384 1.1 christos /* Initialize the local fields. */ 385 1.1 christos hh = hppa_elf_hash_entry (entry); 386 1.1 christos hh->hsh_cache = NULL; 387 1.1 christos hh->plabel = 0; 388 1.1 christos hh->tls_type = GOT_UNKNOWN; 389 1.1 christos } 390 1.1 christos 391 1.1 christos return entry; 392 1.1 christos } 393 1.1 christos 394 1.1.1.4 christos /* Free the derived linker hash table. */ 395 1.1.1.4 christos 396 1.1.1.4 christos static void 397 1.1.1.4 christos elf32_hppa_link_hash_table_free (bfd *obfd) 398 1.1.1.4 christos { 399 1.1.1.4 christos struct elf32_hppa_link_hash_table *htab 400 1.1.1.4 christos = (struct elf32_hppa_link_hash_table *) obfd->link.hash; 401 1.1.1.4 christos 402 1.1.1.4 christos bfd_hash_table_free (&htab->bstab); 403 1.1.1.4 christos _bfd_elf_link_hash_table_free (obfd); 404 1.1.1.4 christos } 405 1.1.1.4 christos 406 1.1 christos /* Create the derived linker hash table. The PA ELF port uses the derived 407 1.1 christos hash table to keep information specific to the PA ELF linker (without 408 1.1 christos using static variables). */ 409 1.1 christos 410 1.1 christos static struct bfd_link_hash_table * 411 1.1 christos elf32_hppa_link_hash_table_create (bfd *abfd) 412 1.1 christos { 413 1.1 christos struct elf32_hppa_link_hash_table *htab; 414 1.1.1.8 christos size_t amt = sizeof (*htab); 415 1.1 christos 416 1.1.1.2 christos htab = bfd_zmalloc (amt); 417 1.1 christos if (htab == NULL) 418 1.1 christos return NULL; 419 1.1 christos 420 1.1 christos if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc, 421 1.1.1.11 christos sizeof (struct elf32_hppa_link_hash_entry))) 422 1.1 christos { 423 1.1 christos free (htab); 424 1.1 christos return NULL; 425 1.1 christos } 426 1.1 christos 427 1.1 christos /* Init the stub hash table too. */ 428 1.1 christos if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc, 429 1.1 christos sizeof (struct elf32_hppa_stub_hash_entry))) 430 1.1.1.4 christos { 431 1.1.1.4 christos _bfd_elf_link_hash_table_free (abfd); 432 1.1.1.4 christos return NULL; 433 1.1.1.4 christos } 434 1.1.1.4 christos htab->etab.root.hash_table_free = elf32_hppa_link_hash_table_free; 435 1.1.1.9 christos htab->etab.dt_pltgot_required = true; 436 1.1 christos 437 1.1 christos htab->text_segment_base = (bfd_vma) -1; 438 1.1 christos htab->data_segment_base = (bfd_vma) -1; 439 1.1 christos return &htab->etab.root; 440 1.1 christos } 441 1.1 christos 442 1.1.1.5 christos /* Initialize the linker stubs BFD so that we can use it for linker 443 1.1.1.5 christos created dynamic sections. */ 444 1.1.1.5 christos 445 1.1.1.5 christos void 446 1.1.1.5 christos elf32_hppa_init_stub_bfd (bfd *abfd, struct bfd_link_info *info) 447 1.1.1.5 christos { 448 1.1.1.5 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); 449 1.1.1.5 christos 450 1.1.1.5 christos elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS32; 451 1.1.1.5 christos htab->etab.dynobj = abfd; 452 1.1.1.5 christos } 453 1.1.1.5 christos 454 1.1 christos /* Build a name for an entry in the stub hash table. */ 455 1.1 christos 456 1.1 christos static char * 457 1.1 christos hppa_stub_name (const asection *input_section, 458 1.1 christos const asection *sym_sec, 459 1.1 christos const struct elf32_hppa_link_hash_entry *hh, 460 1.1 christos const Elf_Internal_Rela *rela) 461 1.1 christos { 462 1.1 christos char *stub_name; 463 1.1 christos bfd_size_type len; 464 1.1 christos 465 1.1 christos if (hh) 466 1.1 christos { 467 1.1 christos len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1; 468 1.1 christos stub_name = bfd_malloc (len); 469 1.1 christos if (stub_name != NULL) 470 1.1 christos sprintf (stub_name, "%08x_%s+%x", 471 1.1 christos input_section->id & 0xffffffff, 472 1.1 christos hh_name (hh), 473 1.1 christos (int) rela->r_addend & 0xffffffff); 474 1.1 christos } 475 1.1 christos else 476 1.1 christos { 477 1.1 christos len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; 478 1.1 christos stub_name = bfd_malloc (len); 479 1.1 christos if (stub_name != NULL) 480 1.1 christos sprintf (stub_name, "%08x_%x:%x+%x", 481 1.1 christos input_section->id & 0xffffffff, 482 1.1 christos sym_sec->id & 0xffffffff, 483 1.1 christos (int) ELF32_R_SYM (rela->r_info) & 0xffffffff, 484 1.1 christos (int) rela->r_addend & 0xffffffff); 485 1.1 christos } 486 1.1 christos return stub_name; 487 1.1 christos } 488 1.1 christos 489 1.1 christos /* Look up an entry in the stub hash. Stub entries are cached because 490 1.1 christos creating the stub name takes a bit of time. */ 491 1.1 christos 492 1.1 christos static struct elf32_hppa_stub_hash_entry * 493 1.1 christos hppa_get_stub_entry (const asection *input_section, 494 1.1 christos const asection *sym_sec, 495 1.1 christos struct elf32_hppa_link_hash_entry *hh, 496 1.1 christos const Elf_Internal_Rela *rela, 497 1.1 christos struct elf32_hppa_link_hash_table *htab) 498 1.1 christos { 499 1.1 christos struct elf32_hppa_stub_hash_entry *hsh_entry; 500 1.1 christos const asection *id_sec; 501 1.1 christos 502 1.1 christos /* If this input section is part of a group of sections sharing one 503 1.1 christos stub section, then use the id of the first section in the group. 504 1.1 christos Stub names need to include a section id, as there may well be 505 1.1 christos more than one stub used to reach say, printf, and we need to 506 1.1 christos distinguish between them. */ 507 1.1 christos id_sec = htab->stub_group[input_section->id].link_sec; 508 1.1.1.7 christos if (id_sec == NULL) 509 1.1.1.7 christos return NULL; 510 1.1 christos 511 1.1 christos if (hh != NULL && hh->hsh_cache != NULL 512 1.1 christos && hh->hsh_cache->hh == hh 513 1.1 christos && hh->hsh_cache->id_sec == id_sec) 514 1.1 christos { 515 1.1 christos hsh_entry = hh->hsh_cache; 516 1.1 christos } 517 1.1 christos else 518 1.1 christos { 519 1.1 christos char *stub_name; 520 1.1 christos 521 1.1 christos stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela); 522 1.1 christos if (stub_name == NULL) 523 1.1 christos return NULL; 524 1.1 christos 525 1.1 christos hsh_entry = hppa_stub_hash_lookup (&htab->bstab, 526 1.1.1.9 christos stub_name, false, false); 527 1.1 christos if (hh != NULL) 528 1.1 christos hh->hsh_cache = hsh_entry; 529 1.1 christos 530 1.1 christos free (stub_name); 531 1.1 christos } 532 1.1 christos 533 1.1 christos return hsh_entry; 534 1.1 christos } 535 1.1 christos 536 1.1 christos /* Add a new stub entry to the stub hash. Not all fields of the new 537 1.1 christos stub entry are initialised. */ 538 1.1 christos 539 1.1 christos static struct elf32_hppa_stub_hash_entry * 540 1.1 christos hppa_add_stub (const char *stub_name, 541 1.1 christos asection *section, 542 1.1 christos struct elf32_hppa_link_hash_table *htab) 543 1.1 christos { 544 1.1 christos asection *link_sec; 545 1.1 christos asection *stub_sec; 546 1.1 christos struct elf32_hppa_stub_hash_entry *hsh; 547 1.1 christos 548 1.1 christos link_sec = htab->stub_group[section->id].link_sec; 549 1.1 christos stub_sec = htab->stub_group[section->id].stub_sec; 550 1.1 christos if (stub_sec == NULL) 551 1.1 christos { 552 1.1 christos stub_sec = htab->stub_group[link_sec->id].stub_sec; 553 1.1 christos if (stub_sec == NULL) 554 1.1 christos { 555 1.1 christos size_t namelen; 556 1.1 christos bfd_size_type len; 557 1.1 christos char *s_name; 558 1.1 christos 559 1.1 christos namelen = strlen (link_sec->name); 560 1.1 christos len = namelen + sizeof (STUB_SUFFIX); 561 1.1 christos s_name = bfd_alloc (htab->stub_bfd, len); 562 1.1 christos if (s_name == NULL) 563 1.1 christos return NULL; 564 1.1 christos 565 1.1 christos memcpy (s_name, link_sec->name, namelen); 566 1.1 christos memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); 567 1.1 christos stub_sec = (*htab->add_stub_section) (s_name, link_sec); 568 1.1 christos if (stub_sec == NULL) 569 1.1 christos return NULL; 570 1.1 christos htab->stub_group[link_sec->id].stub_sec = stub_sec; 571 1.1 christos } 572 1.1 christos htab->stub_group[section->id].stub_sec = stub_sec; 573 1.1 christos } 574 1.1 christos 575 1.1 christos /* Enter this entry into the linker stub hash table. */ 576 1.1 christos hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name, 577 1.1.1.9 christos true, false); 578 1.1 christos if (hsh == NULL) 579 1.1 christos { 580 1.1.1.6 christos /* xgettext:c-format */ 581 1.1.1.7 christos _bfd_error_handler (_("%pB: cannot create stub entry %s"), 582 1.1.1.6 christos section->owner, stub_name); 583 1.1 christos return NULL; 584 1.1 christos } 585 1.1 christos 586 1.1 christos hsh->stub_sec = stub_sec; 587 1.1 christos hsh->stub_offset = 0; 588 1.1 christos hsh->id_sec = link_sec; 589 1.1 christos return hsh; 590 1.1 christos } 591 1.1 christos 592 1.1 christos /* Determine the type of stub needed, if any, for a call. */ 593 1.1 christos 594 1.1 christos static enum elf32_hppa_stub_type 595 1.1 christos hppa_type_of_stub (asection *input_sec, 596 1.1 christos const Elf_Internal_Rela *rela, 597 1.1 christos struct elf32_hppa_link_hash_entry *hh, 598 1.1 christos bfd_vma destination, 599 1.1 christos struct bfd_link_info *info) 600 1.1 christos { 601 1.1 christos bfd_vma location; 602 1.1 christos bfd_vma branch_offset; 603 1.1 christos bfd_vma max_branch_offset; 604 1.1 christos unsigned int r_type; 605 1.1 christos 606 1.1 christos if (hh != NULL 607 1.1 christos && hh->eh.plt.offset != (bfd_vma) -1 608 1.1 christos && hh->eh.dynindx != -1 609 1.1 christos && !hh->plabel 610 1.1.1.5 christos && (bfd_link_pic (info) 611 1.1 christos || !hh->eh.def_regular 612 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak)) 613 1.1 christos { 614 1.1 christos /* We need an import stub. Decide between hppa_stub_import 615 1.1 christos and hppa_stub_import_shared later. */ 616 1.1 christos return hppa_stub_import; 617 1.1 christos } 618 1.1 christos 619 1.1.1.7 christos if (destination == (bfd_vma) -1) 620 1.1.1.7 christos return hppa_stub_none; 621 1.1.1.7 christos 622 1.1 christos /* Determine where the call point is. */ 623 1.1 christos location = (input_sec->output_offset 624 1.1 christos + input_sec->output_section->vma 625 1.1 christos + rela->r_offset); 626 1.1 christos 627 1.1 christos branch_offset = destination - location - 8; 628 1.1 christos r_type = ELF32_R_TYPE (rela->r_info); 629 1.1 christos 630 1.1 christos /* Determine if a long branch stub is needed. parisc branch offsets 631 1.1 christos are relative to the second instruction past the branch, ie. +8 632 1.1 christos bytes on from the branch instruction location. The offset is 633 1.1 christos signed and counts in units of 4 bytes. */ 634 1.1 christos if (r_type == (unsigned int) R_PARISC_PCREL17F) 635 1.1 christos max_branch_offset = (1 << (17 - 1)) << 2; 636 1.1 christos 637 1.1 christos else if (r_type == (unsigned int) R_PARISC_PCREL12F) 638 1.1 christos max_branch_offset = (1 << (12 - 1)) << 2; 639 1.1 christos 640 1.1 christos else /* R_PARISC_PCREL22F. */ 641 1.1 christos max_branch_offset = (1 << (22 - 1)) << 2; 642 1.1 christos 643 1.1 christos if (branch_offset + max_branch_offset >= 2*max_branch_offset) 644 1.1 christos return hppa_stub_long_branch; 645 1.1 christos 646 1.1 christos return hppa_stub_none; 647 1.1 christos } 648 1.1 christos 649 1.1 christos /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. 650 1.1 christos IN_ARG contains the link info pointer. */ 651 1.1 christos 652 1.1 christos #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ 653 1.1 christos #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ 654 1.1 christos 655 1.1 christos #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ 656 1.1 christos #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ 657 1.1 christos #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ 658 1.1 christos 659 1.1 christos #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ 660 1.1 christos #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ 661 1.1 christos #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ 662 1.1 christos #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ 663 1.1 christos 664 1.1 christos #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ 665 1.1 christos #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ 666 1.1 christos 667 1.1.1.8 christos #define LDO_R1_R22 0x34360000 /* ldo RR'XXX(%r1),%r22 */ 668 1.1.1.8 christos #define LDW_R22_R21 0x0ec01095 /* ldw 0(%r22),%r21 */ 669 1.1.1.8 christos #define LDW_R22_R19 0x0ec81093 /* ldw 4(%r22),%r19 */ 670 1.1.1.8 christos 671 1.1 christos #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ 672 1.1 christos #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ 673 1.1 christos #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ 674 1.1 christos #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ 675 1.1 christos 676 1.1 christos #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */ 677 1.1 christos #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ 678 1.1 christos #define NOP 0x08000240 /* nop */ 679 1.1 christos #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ 680 1.1 christos #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ 681 1.1 christos #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ 682 1.1 christos 683 1.1 christos #ifndef R19_STUBS 684 1.1 christos #define R19_STUBS 1 685 1.1 christos #endif 686 1.1 christos 687 1.1 christos #if R19_STUBS 688 1.1 christos #define LDW_R1_DLT LDW_R1_R19 689 1.1 christos #else 690 1.1 christos #define LDW_R1_DLT LDW_R1_DP 691 1.1 christos #endif 692 1.1 christos 693 1.1.1.9 christos static bool 694 1.1 christos hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg) 695 1.1 christos { 696 1.1 christos struct elf32_hppa_stub_hash_entry *hsh; 697 1.1 christos struct bfd_link_info *info; 698 1.1 christos struct elf32_hppa_link_hash_table *htab; 699 1.1 christos asection *stub_sec; 700 1.1 christos bfd *stub_bfd; 701 1.1 christos bfd_byte *loc; 702 1.1 christos bfd_vma sym_value; 703 1.1 christos bfd_vma insn; 704 1.1 christos bfd_vma off; 705 1.1 christos int val; 706 1.1 christos int size; 707 1.1 christos 708 1.1 christos /* Massage our args to the form they really have. */ 709 1.1 christos hsh = hppa_stub_hash_entry (bh); 710 1.1 christos info = (struct bfd_link_info *)in_arg; 711 1.1 christos 712 1.1 christos htab = hppa_link_hash_table (info); 713 1.1 christos if (htab == NULL) 714 1.1.1.9 christos return false; 715 1.1 christos 716 1.1 christos stub_sec = hsh->stub_sec; 717 1.1 christos 718 1.1 christos /* Make a note of the offset within the stubs for this entry. */ 719 1.1 christos hsh->stub_offset = stub_sec->size; 720 1.1 christos loc = stub_sec->contents + hsh->stub_offset; 721 1.1 christos 722 1.1 christos stub_bfd = stub_sec->owner; 723 1.1 christos 724 1.1 christos switch (hsh->stub_type) 725 1.1 christos { 726 1.1 christos case hppa_stub_long_branch: 727 1.1.1.8 christos /* Fail if the target section could not be assigned to an output 728 1.1.1.8 christos section. The user should fix his linker script. */ 729 1.1.1.8 christos if (hsh->target_section->output_section == NULL 730 1.1.1.8 christos && info->non_contiguous_regions) 731 1.1.1.12 christos info->callbacks->fatal (_("%P: Could not assign `%pA' to an output " 732 1.1.1.8 christos "section. Retry without " 733 1.1.1.8 christos "--enable-non-contiguous-regions.\n"), 734 1.1.1.8 christos hsh->target_section); 735 1.1.1.8 christos 736 1.1 christos /* Create the long branch. A long branch is formed with "ldil" 737 1.1 christos loading the upper bits of the target address into a register, 738 1.1 christos then branching with "be" which adds in the lower bits. 739 1.1 christos The "be" has its delay slot nullified. */ 740 1.1 christos sym_value = (hsh->target_value 741 1.1 christos + hsh->target_section->output_offset 742 1.1 christos + hsh->target_section->output_section->vma); 743 1.1 christos 744 1.1 christos val = hppa_field_adjust (sym_value, 0, e_lrsel); 745 1.1 christos insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); 746 1.1 christos bfd_put_32 (stub_bfd, insn, loc); 747 1.1 christos 748 1.1 christos val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2; 749 1.1 christos insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); 750 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 4); 751 1.1 christos 752 1.1.1.8 christos size = LONG_BRANCH_STUB_SIZE; 753 1.1 christos break; 754 1.1 christos 755 1.1 christos case hppa_stub_long_branch_shared: 756 1.1.1.8 christos /* Fail if the target section could not be assigned to an output 757 1.1.1.8 christos section. The user should fix his linker script. */ 758 1.1.1.8 christos if (hsh->target_section->output_section == NULL 759 1.1.1.8 christos && info->non_contiguous_regions) 760 1.1.1.12 christos info->callbacks->fatal (_("%P: Could not assign `%pA' to an output " 761 1.1.1.8 christos "section. Retry without " 762 1.1.1.8 christos "--enable-non-contiguous-regions.\n"), 763 1.1.1.8 christos hsh->target_section); 764 1.1.1.8 christos 765 1.1 christos /* Branches are relative. This is where we are going to. */ 766 1.1 christos sym_value = (hsh->target_value 767 1.1 christos + hsh->target_section->output_offset 768 1.1 christos + hsh->target_section->output_section->vma); 769 1.1 christos 770 1.1 christos /* And this is where we are coming from, more or less. */ 771 1.1 christos sym_value -= (hsh->stub_offset 772 1.1 christos + stub_sec->output_offset 773 1.1 christos + stub_sec->output_section->vma); 774 1.1 christos 775 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); 776 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); 777 1.1 christos insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); 778 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 4); 779 1.1 christos 780 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; 781 1.1 christos insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); 782 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 8); 783 1.1.1.8 christos size = LONG_BRANCH_SHARED_STUB_SIZE; 784 1.1 christos break; 785 1.1 christos 786 1.1 christos case hppa_stub_import: 787 1.1 christos case hppa_stub_import_shared: 788 1.1 christos off = hsh->hh->eh.plt.offset; 789 1.1 christos if (off >= (bfd_vma) -2) 790 1.1 christos abort (); 791 1.1 christos 792 1.1 christos off &= ~ (bfd_vma) 1; 793 1.1 christos sym_value = (off 794 1.1.1.6 christos + htab->etab.splt->output_offset 795 1.1.1.6 christos + htab->etab.splt->output_section->vma 796 1.1.1.6 christos - elf_gp (htab->etab.splt->output_section->owner)); 797 1.1 christos 798 1.1 christos insn = ADDIL_DP; 799 1.1 christos #if R19_STUBS 800 1.1 christos if (hsh->stub_type == hppa_stub_import_shared) 801 1.1 christos insn = ADDIL_R19; 802 1.1 christos #endif 803 1.1.1.8 christos 804 1.1.1.8 christos /* Load function descriptor address into register %r22. It is 805 1.1.1.8 christos sometimes needed for lazy binding. */ 806 1.1 christos val = hppa_field_adjust (sym_value, 0, e_lrsel), 807 1.1 christos insn = hppa_rebuild_insn ((int) insn, val, 21); 808 1.1 christos bfd_put_32 (stub_bfd, insn, loc); 809 1.1 christos 810 1.1 christos val = hppa_field_adjust (sym_value, 0, e_rrsel); 811 1.1.1.8 christos insn = hppa_rebuild_insn ((int) LDO_R1_R22, val, 14); 812 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 4); 813 1.1 christos 814 1.1.1.8 christos bfd_put_32 (stub_bfd, (bfd_vma) LDW_R22_R21, loc + 8); 815 1.1.1.8 christos 816 1.1 christos if (htab->multi_subspace) 817 1.1 christos { 818 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); 819 1.1.1.8 christos bfd_put_32 (stub_bfd, (bfd_vma) LDW_R22_R19, loc + 16); 820 1.1.1.8 christos bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 20); 821 1.1.1.8 christos bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 24); 822 1.1.1.8 christos bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 28); 823 1.1 christos 824 1.1.1.8 christos size = IMPORT_SHARED_STUB_SIZE; 825 1.1 christos } 826 1.1 christos else 827 1.1 christos { 828 1.1.1.8 christos bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 12); 829 1.1.1.8 christos bfd_put_32 (stub_bfd, (bfd_vma) LDW_R22_R19, loc + 16); 830 1.1 christos 831 1.1.1.8 christos size = IMPORT_STUB_SIZE; 832 1.1 christos } 833 1.1 christos 834 1.1 christos break; 835 1.1 christos 836 1.1 christos case hppa_stub_export: 837 1.1.1.8 christos /* Fail if the target section could not be assigned to an output 838 1.1.1.8 christos section. The user should fix his linker script. */ 839 1.1.1.8 christos if (hsh->target_section->output_section == NULL 840 1.1.1.8 christos && info->non_contiguous_regions) 841 1.1.1.12 christos info->callbacks->fatal (_("%P: Could not assign `%pA' to an output " 842 1.1.1.8 christos "section. Retry without " 843 1.1.1.8 christos "--enable-non-contiguous-regions.\n"), 844 1.1.1.8 christos hsh->target_section); 845 1.1.1.8 christos 846 1.1 christos /* Branches are relative. This is where we are going to. */ 847 1.1 christos sym_value = (hsh->target_value 848 1.1 christos + hsh->target_section->output_offset 849 1.1 christos + hsh->target_section->output_section->vma); 850 1.1 christos 851 1.1 christos /* And this is where we are coming from. */ 852 1.1 christos sym_value -= (hsh->stub_offset 853 1.1 christos + stub_sec->output_offset 854 1.1 christos + stub_sec->output_section->vma); 855 1.1 christos 856 1.1 christos if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2)) 857 1.1 christos && (!htab->has_22bit_branch 858 1.1 christos || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2)))) 859 1.1 christos { 860 1.1.1.6 christos _bfd_error_handler 861 1.1.1.6 christos /* xgettext:c-format */ 862 1.1.1.7 christos (_("%pB(%pA+%#" PRIx64 "): " 863 1.1.1.7 christos "cannot reach %s, recompile with -ffunction-sections"), 864 1.1 christos hsh->target_section->owner, 865 1.1 christos stub_sec, 866 1.1.1.7 christos (uint64_t) hsh->stub_offset, 867 1.1 christos hsh->bh_root.string); 868 1.1 christos bfd_set_error (bfd_error_bad_value); 869 1.1.1.9 christos return false; 870 1.1 christos } 871 1.1 christos 872 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; 873 1.1 christos if (!htab->has_22bit_branch) 874 1.1 christos insn = hppa_rebuild_insn ((int) BL_RP, val, 17); 875 1.1 christos else 876 1.1 christos insn = hppa_rebuild_insn ((int) BL22_RP, val, 22); 877 1.1 christos bfd_put_32 (stub_bfd, insn, loc); 878 1.1 christos 879 1.1.1.7 christos bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); 880 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); 881 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); 882 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); 883 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); 884 1.1 christos 885 1.1 christos /* Point the function symbol at the stub. */ 886 1.1 christos hsh->hh->eh.root.u.def.section = stub_sec; 887 1.1 christos hsh->hh->eh.root.u.def.value = stub_sec->size; 888 1.1 christos 889 1.1.1.8 christos size = EXPORT_STUB_SIZE; 890 1.1 christos break; 891 1.1 christos 892 1.1 christos default: 893 1.1 christos BFD_FAIL (); 894 1.1.1.9 christos return false; 895 1.1 christos } 896 1.1 christos 897 1.1 christos stub_sec->size += size; 898 1.1.1.9 christos return true; 899 1.1 christos } 900 1.1 christos 901 1.1 christos #undef LDIL_R1 902 1.1 christos #undef BE_SR4_R1 903 1.1 christos #undef BL_R1 904 1.1 christos #undef ADDIL_R1 905 1.1 christos #undef DEPI_R1 906 1.1 christos #undef LDW_R1_R21 907 1.1 christos #undef LDW_R1_DLT 908 1.1 christos #undef LDW_R1_R19 909 1.1 christos #undef ADDIL_R19 910 1.1 christos #undef LDW_R1_DP 911 1.1 christos #undef LDSID_R21_R1 912 1.1 christos #undef MTSP_R1 913 1.1 christos #undef BE_SR0_R21 914 1.1 christos #undef STW_RP 915 1.1 christos #undef BV_R0_R21 916 1.1 christos #undef BL_RP 917 1.1 christos #undef NOP 918 1.1 christos #undef LDW_RP 919 1.1 christos #undef LDSID_RP_R1 920 1.1 christos #undef BE_SR0_RP 921 1.1 christos 922 1.1 christos /* As above, but don't actually build the stub. Just bump offset so 923 1.1 christos we know stub section sizes. */ 924 1.1 christos 925 1.1.1.9 christos static bool 926 1.1 christos hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg) 927 1.1 christos { 928 1.1 christos struct elf32_hppa_stub_hash_entry *hsh; 929 1.1 christos struct elf32_hppa_link_hash_table *htab; 930 1.1 christos int size; 931 1.1 christos 932 1.1 christos /* Massage our args to the form they really have. */ 933 1.1 christos hsh = hppa_stub_hash_entry (bh); 934 1.1 christos htab = in_arg; 935 1.1 christos 936 1.1 christos if (hsh->stub_type == hppa_stub_long_branch) 937 1.1.1.8 christos size = LONG_BRANCH_STUB_SIZE; 938 1.1 christos else if (hsh->stub_type == hppa_stub_long_branch_shared) 939 1.1.1.8 christos size = LONG_BRANCH_SHARED_STUB_SIZE; 940 1.1 christos else if (hsh->stub_type == hppa_stub_export) 941 1.1.1.8 christos size = EXPORT_STUB_SIZE; 942 1.1 christos else /* hppa_stub_import or hppa_stub_import_shared. */ 943 1.1 christos { 944 1.1 christos if (htab->multi_subspace) 945 1.1.1.8 christos size = IMPORT_SHARED_STUB_SIZE; 946 1.1 christos else 947 1.1.1.8 christos size = IMPORT_STUB_SIZE; 948 1.1 christos } 949 1.1 christos 950 1.1 christos hsh->stub_sec->size += size; 951 1.1.1.9 christos return true; 952 1.1 christos } 953 1.1 christos 954 1.1 christos /* Return nonzero if ABFD represents an HPPA ELF32 file. 955 1.1 christos Additionally we set the default architecture and machine. */ 956 1.1 christos 957 1.1.1.9 christos static bool 958 1.1 christos elf32_hppa_object_p (bfd *abfd) 959 1.1 christos { 960 1.1 christos Elf_Internal_Ehdr * i_ehdrp; 961 1.1 christos unsigned int flags; 962 1.1 christos 963 1.1 christos i_ehdrp = elf_elfheader (abfd); 964 1.1 christos if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) 965 1.1 christos { 966 1.1.1.2 christos /* GCC on hppa-linux produces binaries with OSABI=GNU, 967 1.1 christos but the kernel produces corefiles with OSABI=SysV. */ 968 1.1.1.2 christos if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU && 969 1.1 christos i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ 970 1.1.1.9 christos return false; 971 1.1 christos } 972 1.1 christos else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0) 973 1.1 christos { 974 1.1 christos /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD, 975 1.1 christos but the kernel produces corefiles with OSABI=SysV. */ 976 1.1 christos if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD && 977 1.1 christos i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ 978 1.1.1.9 christos return false; 979 1.1 christos } 980 1.1 christos else 981 1.1 christos { 982 1.1 christos if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) 983 1.1.1.9 christos return false; 984 1.1 christos } 985 1.1 christos 986 1.1 christos flags = i_ehdrp->e_flags; 987 1.1 christos switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) 988 1.1 christos { 989 1.1 christos case EFA_PARISC_1_0: 990 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); 991 1.1 christos case EFA_PARISC_1_1: 992 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); 993 1.1 christos case EFA_PARISC_2_0: 994 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); 995 1.1 christos case EFA_PARISC_2_0 | EF_PARISC_WIDE: 996 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); 997 1.1 christos } 998 1.1.1.9 christos return true; 999 1.1 christos } 1000 1.1 christos 1001 1.1 christos /* Create the .plt and .got sections, and set up our hash table 1002 1.1 christos short-cuts to various dynamic sections. */ 1003 1.1 christos 1004 1.1.1.9 christos static bool 1005 1.1 christos elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) 1006 1.1 christos { 1007 1.1 christos struct elf32_hppa_link_hash_table *htab; 1008 1.1 christos struct elf_link_hash_entry *eh; 1009 1.1 christos 1010 1.1 christos /* Don't try to create the .plt and .got twice. */ 1011 1.1 christos htab = hppa_link_hash_table (info); 1012 1.1 christos if (htab == NULL) 1013 1.1.1.9 christos return false; 1014 1.1.1.6 christos if (htab->etab.splt != NULL) 1015 1.1.1.9 christos return true; 1016 1.1 christos 1017 1.1 christos /* Call the generic code to do most of the work. */ 1018 1.1 christos if (! _bfd_elf_create_dynamic_sections (abfd, info)) 1019 1.1.1.9 christos return false; 1020 1.1 christos 1021 1.1 christos /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main 1022 1.1 christos application, because __canonicalize_funcptr_for_compare needs it. */ 1023 1.1 christos eh = elf_hash_table (info)->hgot; 1024 1.1 christos eh->forced_local = 0; 1025 1.1 christos eh->other = STV_DEFAULT; 1026 1.1 christos return bfd_elf_link_record_dynamic_symbol (info, eh); 1027 1.1 christos } 1028 1.1 christos 1029 1.1 christos /* Copy the extra info we tack onto an elf_link_hash_entry. */ 1030 1.1 christos 1031 1.1 christos static void 1032 1.1 christos elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info, 1033 1.1 christos struct elf_link_hash_entry *eh_dir, 1034 1.1 christos struct elf_link_hash_entry *eh_ind) 1035 1.1 christos { 1036 1.1 christos struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind; 1037 1.1 christos 1038 1.1 christos hh_dir = hppa_elf_hash_entry (eh_dir); 1039 1.1 christos hh_ind = hppa_elf_hash_entry (eh_ind); 1040 1.1 christos 1041 1.1.1.7 christos if (eh_ind->root.type == bfd_link_hash_indirect) 1042 1.1 christos { 1043 1.1.1.7 christos hh_dir->plabel |= hh_ind->plabel; 1044 1.1.1.7 christos hh_dir->tls_type |= hh_ind->tls_type; 1045 1.1.1.7 christos hh_ind->tls_type = GOT_UNKNOWN; 1046 1.1 christos } 1047 1.1 christos 1048 1.1.1.7 christos _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind); 1049 1.1 christos } 1050 1.1 christos 1051 1.1 christos static int 1052 1.1 christos elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED, 1053 1.1 christos int r_type, int is_local ATTRIBUTE_UNUSED) 1054 1.1 christos { 1055 1.1 christos /* For now we don't support linker optimizations. */ 1056 1.1 christos return r_type; 1057 1.1 christos } 1058 1.1 christos 1059 1.1 christos /* Return a pointer to the local GOT, PLT and TLS reference counts 1060 1.1 christos for ABFD. Returns NULL if the storage allocation fails. */ 1061 1.1 christos 1062 1.1 christos static bfd_signed_vma * 1063 1.1 christos hppa32_elf_local_refcounts (bfd *abfd) 1064 1.1 christos { 1065 1.1 christos Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr; 1066 1.1 christos bfd_signed_vma *local_refcounts; 1067 1.1.1.2 christos 1068 1.1 christos local_refcounts = elf_local_got_refcounts (abfd); 1069 1.1 christos if (local_refcounts == NULL) 1070 1.1 christos { 1071 1.1 christos bfd_size_type size; 1072 1.1 christos 1073 1.1 christos /* Allocate space for local GOT and PLT reference 1074 1.1 christos counts. Done this way to save polluting elf_obj_tdata 1075 1.1 christos with another target specific pointer. */ 1076 1.1 christos size = symtab_hdr->sh_info; 1077 1.1 christos size *= 2 * sizeof (bfd_signed_vma); 1078 1.1 christos /* Add in space to store the local GOT TLS types. */ 1079 1.1 christos size += symtab_hdr->sh_info; 1080 1.1 christos local_refcounts = bfd_zalloc (abfd, size); 1081 1.1 christos if (local_refcounts == NULL) 1082 1.1 christos return NULL; 1083 1.1 christos elf_local_got_refcounts (abfd) = local_refcounts; 1084 1.1 christos memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN, 1085 1.1 christos symtab_hdr->sh_info); 1086 1.1 christos } 1087 1.1 christos return local_refcounts; 1088 1.1 christos } 1089 1.1 christos 1090 1.1 christos 1091 1.1 christos /* Look through the relocs for a section during the first phase, and 1092 1.1 christos calculate needed space in the global offset table, procedure linkage 1093 1.1 christos table, and dynamic reloc sections. At this point we haven't 1094 1.1 christos necessarily read all the input files. */ 1095 1.1 christos 1096 1.1.1.9 christos static bool 1097 1.1 christos elf32_hppa_check_relocs (bfd *abfd, 1098 1.1 christos struct bfd_link_info *info, 1099 1.1 christos asection *sec, 1100 1.1 christos const Elf_Internal_Rela *relocs) 1101 1.1 christos { 1102 1.1 christos Elf_Internal_Shdr *symtab_hdr; 1103 1.1 christos struct elf_link_hash_entry **eh_syms; 1104 1.1 christos const Elf_Internal_Rela *rela; 1105 1.1 christos const Elf_Internal_Rela *rela_end; 1106 1.1 christos struct elf32_hppa_link_hash_table *htab; 1107 1.1 christos asection *sreloc; 1108 1.1 christos 1109 1.1.1.5 christos if (bfd_link_relocatable (info)) 1110 1.1.1.9 christos return true; 1111 1.1 christos 1112 1.1 christos htab = hppa_link_hash_table (info); 1113 1.1 christos if (htab == NULL) 1114 1.1.1.9 christos return false; 1115 1.1 christos symtab_hdr = &elf_tdata (abfd)->symtab_hdr; 1116 1.1 christos eh_syms = elf_sym_hashes (abfd); 1117 1.1 christos sreloc = NULL; 1118 1.1 christos 1119 1.1 christos rela_end = relocs + sec->reloc_count; 1120 1.1 christos for (rela = relocs; rela < rela_end; rela++) 1121 1.1 christos { 1122 1.1 christos enum { 1123 1.1 christos NEED_GOT = 1, 1124 1.1 christos NEED_PLT = 2, 1125 1.1 christos NEED_DYNREL = 4, 1126 1.1 christos PLT_PLABEL = 8 1127 1.1 christos }; 1128 1.1 christos 1129 1.1 christos unsigned int r_symndx, r_type; 1130 1.1 christos struct elf32_hppa_link_hash_entry *hh; 1131 1.1 christos int need_entry = 0; 1132 1.1 christos 1133 1.1 christos r_symndx = ELF32_R_SYM (rela->r_info); 1134 1.1 christos 1135 1.1 christos if (r_symndx < symtab_hdr->sh_info) 1136 1.1 christos hh = NULL; 1137 1.1 christos else 1138 1.1 christos { 1139 1.1 christos hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]); 1140 1.1 christos while (hh->eh.root.type == bfd_link_hash_indirect 1141 1.1 christos || hh->eh.root.type == bfd_link_hash_warning) 1142 1.1 christos hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); 1143 1.1 christos } 1144 1.1 christos 1145 1.1 christos r_type = ELF32_R_TYPE (rela->r_info); 1146 1.1 christos r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL); 1147 1.1 christos 1148 1.1 christos switch (r_type) 1149 1.1 christos { 1150 1.1 christos case R_PARISC_DLTIND14F: 1151 1.1 christos case R_PARISC_DLTIND14R: 1152 1.1 christos case R_PARISC_DLTIND21L: 1153 1.1 christos /* This symbol requires a global offset table entry. */ 1154 1.1 christos need_entry = NEED_GOT; 1155 1.1 christos break; 1156 1.1 christos 1157 1.1 christos case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ 1158 1.1 christos case R_PARISC_PLABEL21L: 1159 1.1 christos case R_PARISC_PLABEL32: 1160 1.1 christos /* If the addend is non-zero, we break badly. */ 1161 1.1 christos if (rela->r_addend != 0) 1162 1.1 christos abort (); 1163 1.1 christos 1164 1.1 christos /* If we are creating a shared library, then we need to 1165 1.1 christos create a PLT entry for all PLABELs, because PLABELs with 1166 1.1 christos local symbols may be passed via a pointer to another 1167 1.1 christos object. Additionally, output a dynamic relocation 1168 1.1 christos pointing to the PLT entry. 1169 1.1 christos 1170 1.1 christos For executables, the original 32-bit ABI allowed two 1171 1.1 christos different styles of PLABELs (function pointers): For 1172 1.1 christos global functions, the PLABEL word points into the .plt 1173 1.1 christos two bytes past a (function address, gp) pair, and for 1174 1.1 christos local functions the PLABEL points directly at the 1175 1.1 christos function. The magic +2 for the first type allows us to 1176 1.1 christos differentiate between the two. As you can imagine, this 1177 1.1 christos is a real pain when it comes to generating code to call 1178 1.1 christos functions indirectly or to compare function pointers. 1179 1.1 christos We avoid the mess by always pointing a PLABEL into the 1180 1.1 christos .plt, even for local functions. */ 1181 1.1.1.7 christos need_entry = PLT_PLABEL | NEED_PLT; 1182 1.1.1.7 christos if (bfd_link_pic (info)) 1183 1.1.1.7 christos need_entry |= NEED_DYNREL; 1184 1.1 christos break; 1185 1.1 christos 1186 1.1 christos case R_PARISC_PCREL12F: 1187 1.1 christos htab->has_12bit_branch = 1; 1188 1.1 christos goto branch_common; 1189 1.1 christos 1190 1.1 christos case R_PARISC_PCREL17C: 1191 1.1 christos case R_PARISC_PCREL17F: 1192 1.1 christos htab->has_17bit_branch = 1; 1193 1.1 christos goto branch_common; 1194 1.1 christos 1195 1.1 christos case R_PARISC_PCREL22F: 1196 1.1 christos htab->has_22bit_branch = 1; 1197 1.1 christos branch_common: 1198 1.1 christos /* Function calls might need to go through the .plt, and 1199 1.1 christos might require long branch stubs. */ 1200 1.1 christos if (hh == NULL) 1201 1.1 christos { 1202 1.1 christos /* We know local syms won't need a .plt entry, and if 1203 1.1 christos they need a long branch stub we can't guarantee that 1204 1.1 christos we can reach the stub. So just flag an error later 1205 1.1 christos if we're doing a shared link and find we need a long 1206 1.1 christos branch stub. */ 1207 1.1 christos continue; 1208 1.1 christos } 1209 1.1 christos else 1210 1.1 christos { 1211 1.1 christos /* Global symbols will need a .plt entry if they remain 1212 1.1 christos global, and in most cases won't need a long branch 1213 1.1 christos stub. Unfortunately, we have to cater for the case 1214 1.1 christos where a symbol is forced local by versioning, or due 1215 1.1 christos to symbolic linking, and we lose the .plt entry. */ 1216 1.1 christos need_entry = NEED_PLT; 1217 1.1 christos if (hh->eh.type == STT_PARISC_MILLI) 1218 1.1 christos need_entry = 0; 1219 1.1 christos } 1220 1.1 christos break; 1221 1.1 christos 1222 1.1 christos case R_PARISC_SEGBASE: /* Used to set segment base. */ 1223 1.1 christos case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ 1224 1.1 christos case R_PARISC_PCREL14F: /* PC relative load/store. */ 1225 1.1 christos case R_PARISC_PCREL14R: 1226 1.1 christos case R_PARISC_PCREL17R: /* External branches. */ 1227 1.1 christos case R_PARISC_PCREL21L: /* As above, and for load/store too. */ 1228 1.1 christos case R_PARISC_PCREL32: 1229 1.1 christos /* We don't need to propagate the relocation if linking a 1230 1.1 christos shared object since these are section relative. */ 1231 1.1 christos continue; 1232 1.1 christos 1233 1.1 christos case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ 1234 1.1 christos case R_PARISC_DPREL14R: 1235 1.1 christos case R_PARISC_DPREL21L: 1236 1.1.1.5 christos if (bfd_link_pic (info)) 1237 1.1 christos { 1238 1.1.1.6 christos _bfd_error_handler 1239 1.1.1.6 christos /* xgettext:c-format */ 1240 1.1.1.7 christos (_("%pB: relocation %s can not be used when making a shared object; recompile with -fPIC"), 1241 1.1 christos abfd, 1242 1.1 christos elf_hppa_howto_table[r_type].name); 1243 1.1 christos bfd_set_error (bfd_error_bad_value); 1244 1.1.1.9 christos return false; 1245 1.1 christos } 1246 1.1 christos /* Fall through. */ 1247 1.1 christos 1248 1.1 christos case R_PARISC_DIR17F: /* Used for external branches. */ 1249 1.1 christos case R_PARISC_DIR17R: 1250 1.1 christos case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ 1251 1.1 christos case R_PARISC_DIR14R: 1252 1.1 christos case R_PARISC_DIR21L: /* As above, and for ext branches too. */ 1253 1.1 christos case R_PARISC_DIR32: /* .word relocs. */ 1254 1.1 christos /* We may want to output a dynamic relocation later. */ 1255 1.1 christos need_entry = NEED_DYNREL; 1256 1.1 christos break; 1257 1.1 christos 1258 1.1 christos /* This relocation describes the C++ object vtable hierarchy. 1259 1.1 christos Reconstruct it for later use during GC. */ 1260 1.1 christos case R_PARISC_GNU_VTINHERIT: 1261 1.1 christos if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset)) 1262 1.1.1.9 christos return false; 1263 1.1 christos continue; 1264 1.1 christos 1265 1.1 christos /* This relocation describes which C++ vtable entries are actually 1266 1.1 christos used. Record for later use during GC. */ 1267 1.1 christos case R_PARISC_GNU_VTENTRY: 1268 1.1.1.8 christos if (!bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend)) 1269 1.1.1.9 christos return false; 1270 1.1 christos continue; 1271 1.1 christos 1272 1.1 christos case R_PARISC_TLS_GD21L: 1273 1.1 christos case R_PARISC_TLS_GD14R: 1274 1.1 christos case R_PARISC_TLS_LDM21L: 1275 1.1 christos case R_PARISC_TLS_LDM14R: 1276 1.1 christos need_entry = NEED_GOT; 1277 1.1 christos break; 1278 1.1 christos 1279 1.1 christos case R_PARISC_TLS_IE21L: 1280 1.1 christos case R_PARISC_TLS_IE14R: 1281 1.1.1.7 christos if (bfd_link_dll (info)) 1282 1.1.1.7 christos info->flags |= DF_STATIC_TLS; 1283 1.1 christos need_entry = NEED_GOT; 1284 1.1 christos break; 1285 1.1 christos 1286 1.1 christos default: 1287 1.1 christos continue; 1288 1.1 christos } 1289 1.1 christos 1290 1.1 christos /* Now carry out our orders. */ 1291 1.1 christos if (need_entry & NEED_GOT) 1292 1.1 christos { 1293 1.1.1.7 christos int tls_type = GOT_NORMAL; 1294 1.1.1.7 christos 1295 1.1 christos switch (r_type) 1296 1.1 christos { 1297 1.1 christos default: 1298 1.1 christos break; 1299 1.1 christos case R_PARISC_TLS_GD21L: 1300 1.1 christos case R_PARISC_TLS_GD14R: 1301 1.1.1.7 christos tls_type = GOT_TLS_GD; 1302 1.1 christos break; 1303 1.1 christos case R_PARISC_TLS_LDM21L: 1304 1.1 christos case R_PARISC_TLS_LDM14R: 1305 1.1.1.7 christos tls_type = GOT_TLS_LDM; 1306 1.1 christos break; 1307 1.1 christos case R_PARISC_TLS_IE21L: 1308 1.1 christos case R_PARISC_TLS_IE14R: 1309 1.1.1.7 christos tls_type = GOT_TLS_IE; 1310 1.1 christos break; 1311 1.1 christos } 1312 1.1 christos 1313 1.1 christos /* Allocate space for a GOT entry, as well as a dynamic 1314 1.1 christos relocation for this entry. */ 1315 1.1.1.6 christos if (htab->etab.sgot == NULL) 1316 1.1 christos { 1317 1.1 christos if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info)) 1318 1.1.1.9 christos return false; 1319 1.1 christos } 1320 1.1 christos 1321 1.1.1.7 christos if (hh != NULL) 1322 1.1 christos { 1323 1.1.1.7 christos if (tls_type == GOT_TLS_LDM) 1324 1.1.1.7 christos htab->tls_ldm_got.refcount += 1; 1325 1.1 christos else 1326 1.1.1.7 christos hh->eh.got.refcount += 1; 1327 1.1.1.7 christos hh->tls_type |= tls_type; 1328 1.1.1.7 christos } 1329 1.1.1.7 christos else 1330 1.1.1.7 christos { 1331 1.1.1.7 christos bfd_signed_vma *local_got_refcounts; 1332 1.1 christos 1333 1.1.1.7 christos /* This is a global offset table entry for a local symbol. */ 1334 1.1.1.7 christos local_got_refcounts = hppa32_elf_local_refcounts (abfd); 1335 1.1.1.7 christos if (local_got_refcounts == NULL) 1336 1.1.1.9 christos return false; 1337 1.1.1.7 christos if (tls_type == GOT_TLS_LDM) 1338 1.1.1.7 christos htab->tls_ldm_got.refcount += 1; 1339 1.1.1.7 christos else 1340 1.1.1.7 christos local_got_refcounts[r_symndx] += 1; 1341 1.1 christos 1342 1.1.1.7 christos hppa_elf_local_got_tls_type (abfd) [r_symndx] |= tls_type; 1343 1.1 christos } 1344 1.1 christos } 1345 1.1 christos 1346 1.1 christos if (need_entry & NEED_PLT) 1347 1.1 christos { 1348 1.1 christos /* If we are creating a shared library, and this is a reloc 1349 1.1 christos against a weak symbol or a global symbol in a dynamic 1350 1.1 christos object, then we will be creating an import stub and a 1351 1.1 christos .plt entry for the symbol. Similarly, on a normal link 1352 1.1 christos to symbols defined in a dynamic object we'll need the 1353 1.1 christos import stub and a .plt entry. We don't know yet whether 1354 1.1 christos the symbol is defined or not, so make an entry anyway and 1355 1.1 christos clean up later in adjust_dynamic_symbol. */ 1356 1.1 christos if ((sec->flags & SEC_ALLOC) != 0) 1357 1.1 christos { 1358 1.1 christos if (hh != NULL) 1359 1.1 christos { 1360 1.1 christos hh->eh.needs_plt = 1; 1361 1.1 christos hh->eh.plt.refcount += 1; 1362 1.1 christos 1363 1.1 christos /* If this .plt entry is for a plabel, mark it so 1364 1.1 christos that adjust_dynamic_symbol will keep the entry 1365 1.1 christos even if it appears to be local. */ 1366 1.1 christos if (need_entry & PLT_PLABEL) 1367 1.1 christos hh->plabel = 1; 1368 1.1 christos } 1369 1.1 christos else if (need_entry & PLT_PLABEL) 1370 1.1 christos { 1371 1.1 christos bfd_signed_vma *local_got_refcounts; 1372 1.1 christos bfd_signed_vma *local_plt_refcounts; 1373 1.1 christos 1374 1.1 christos local_got_refcounts = hppa32_elf_local_refcounts (abfd); 1375 1.1 christos if (local_got_refcounts == NULL) 1376 1.1.1.9 christos return false; 1377 1.1 christos local_plt_refcounts = (local_got_refcounts 1378 1.1 christos + symtab_hdr->sh_info); 1379 1.1 christos local_plt_refcounts[r_symndx] += 1; 1380 1.1 christos } 1381 1.1 christos } 1382 1.1 christos } 1383 1.1 christos 1384 1.1.1.7 christos if ((need_entry & NEED_DYNREL) != 0 1385 1.1.1.7 christos && (sec->flags & SEC_ALLOC) != 0) 1386 1.1 christos { 1387 1.1 christos /* Flag this symbol as having a non-got, non-plt reference 1388 1.1 christos so that we generate copy relocs if it turns out to be 1389 1.1 christos dynamic. */ 1390 1.1.1.7 christos if (hh != NULL) 1391 1.1 christos hh->eh.non_got_ref = 1; 1392 1.1 christos 1393 1.1 christos /* If we are creating a shared library then we need to copy 1394 1.1 christos the reloc into the shared library. However, if we are 1395 1.1 christos linking with -Bsymbolic, we need only copy absolute 1396 1.1 christos relocs or relocs against symbols that are not defined in 1397 1.1 christos an object we are including in the link. PC- or DP- or 1398 1.1 christos DLT-relative relocs against any local sym or global sym 1399 1.1 christos with DEF_REGULAR set, can be discarded. At this point we 1400 1.1 christos have not seen all the input files, so it is possible that 1401 1.1 christos DEF_REGULAR is not set now but will be set later (it is 1402 1.1 christos never cleared). We account for that possibility below by 1403 1.1 christos storing information in the dyn_relocs field of the 1404 1.1 christos hash table entry. 1405 1.1 christos 1406 1.1 christos A similar situation to the -Bsymbolic case occurs when 1407 1.1 christos creating shared libraries and symbol visibility changes 1408 1.1 christos render the symbol local. 1409 1.1 christos 1410 1.1 christos As it turns out, all the relocs we will be creating here 1411 1.1 christos are absolute, so we cannot remove them on -Bsymbolic 1412 1.1 christos links or visibility changes anyway. A STUB_REL reloc 1413 1.1 christos is absolute too, as in that case it is the reloc in the 1414 1.1 christos stub we will be creating, rather than copying the PCREL 1415 1.1 christos reloc in the branch. 1416 1.1 christos 1417 1.1 christos If on the other hand, we are creating an executable, we 1418 1.1 christos may need to keep relocations for symbols satisfied by a 1419 1.1 christos dynamic library if we manage to avoid copy relocs for the 1420 1.1 christos symbol. */ 1421 1.1.1.5 christos if ((bfd_link_pic (info) 1422 1.1 christos && (IS_ABSOLUTE_RELOC (r_type) 1423 1.1 christos || (hh != NULL 1424 1.1.1.5 christos && (!SYMBOLIC_BIND (info, &hh->eh) 1425 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak 1426 1.1 christos || !hh->eh.def_regular)))) 1427 1.1 christos || (ELIMINATE_COPY_RELOCS 1428 1.1.1.5 christos && !bfd_link_pic (info) 1429 1.1 christos && hh != NULL 1430 1.1 christos && (hh->eh.root.type == bfd_link_hash_defweak 1431 1.1 christos || !hh->eh.def_regular))) 1432 1.1 christos { 1433 1.1.1.7 christos struct elf_dyn_relocs *hdh_p; 1434 1.1.1.7 christos struct elf_dyn_relocs **hdh_head; 1435 1.1 christos 1436 1.1 christos /* Create a reloc section in dynobj and make room for 1437 1.1 christos this reloc. */ 1438 1.1 christos if (sreloc == NULL) 1439 1.1 christos { 1440 1.1 christos sreloc = _bfd_elf_make_dynamic_reloc_section 1441 1.1.1.9 christos (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ true); 1442 1.1 christos 1443 1.1 christos if (sreloc == NULL) 1444 1.1 christos { 1445 1.1 christos bfd_set_error (bfd_error_bad_value); 1446 1.1.1.9 christos return false; 1447 1.1 christos } 1448 1.1 christos } 1449 1.1 christos 1450 1.1 christos /* If this is a global symbol, we count the number of 1451 1.1 christos relocations we need for this symbol. */ 1452 1.1 christos if (hh != NULL) 1453 1.1 christos { 1454 1.1.1.8 christos hdh_head = &hh->eh.dyn_relocs; 1455 1.1 christos } 1456 1.1 christos else 1457 1.1 christos { 1458 1.1 christos /* Track dynamic relocs needed for local syms too. 1459 1.1 christos We really need local syms available to do this 1460 1.1 christos easily. Oh well. */ 1461 1.1 christos asection *sr; 1462 1.1 christos void *vpp; 1463 1.1 christos Elf_Internal_Sym *isym; 1464 1.1 christos 1465 1.1.1.8 christos isym = bfd_sym_from_r_symndx (&htab->etab.sym_cache, 1466 1.1 christos abfd, r_symndx); 1467 1.1 christos if (isym == NULL) 1468 1.1.1.9 christos return false; 1469 1.1 christos 1470 1.1 christos sr = bfd_section_from_elf_index (abfd, isym->st_shndx); 1471 1.1 christos if (sr == NULL) 1472 1.1 christos sr = sec; 1473 1.1 christos 1474 1.1 christos vpp = &elf_section_data (sr)->local_dynrel; 1475 1.1.1.7 christos hdh_head = (struct elf_dyn_relocs **) vpp; 1476 1.1 christos } 1477 1.1 christos 1478 1.1 christos hdh_p = *hdh_head; 1479 1.1 christos if (hdh_p == NULL || hdh_p->sec != sec) 1480 1.1 christos { 1481 1.1 christos hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p); 1482 1.1 christos if (hdh_p == NULL) 1483 1.1.1.9 christos return false; 1484 1.1.1.7 christos hdh_p->next = *hdh_head; 1485 1.1 christos *hdh_head = hdh_p; 1486 1.1 christos hdh_p->sec = sec; 1487 1.1 christos hdh_p->count = 0; 1488 1.1 christos #if RELATIVE_DYNRELOCS 1489 1.1.1.7 christos hdh_p->pc_count = 0; 1490 1.1 christos #endif 1491 1.1 christos } 1492 1.1 christos 1493 1.1 christos hdh_p->count += 1; 1494 1.1 christos #if RELATIVE_DYNRELOCS 1495 1.1 christos if (!IS_ABSOLUTE_RELOC (rtype)) 1496 1.1.1.7 christos hdh_p->pc_count += 1; 1497 1.1 christos #endif 1498 1.1 christos } 1499 1.1 christos } 1500 1.1 christos } 1501 1.1 christos 1502 1.1.1.9 christos return true; 1503 1.1 christos } 1504 1.1 christos 1505 1.1 christos /* Return the section that should be marked against garbage collection 1506 1.1 christos for a given relocation. */ 1507 1.1 christos 1508 1.1 christos static asection * 1509 1.1 christos elf32_hppa_gc_mark_hook (asection *sec, 1510 1.1 christos struct bfd_link_info *info, 1511 1.1 christos Elf_Internal_Rela *rela, 1512 1.1 christos struct elf_link_hash_entry *hh, 1513 1.1 christos Elf_Internal_Sym *sym) 1514 1.1 christos { 1515 1.1 christos if (hh != NULL) 1516 1.1 christos switch ((unsigned int) ELF32_R_TYPE (rela->r_info)) 1517 1.1 christos { 1518 1.1 christos case R_PARISC_GNU_VTINHERIT: 1519 1.1 christos case R_PARISC_GNU_VTENTRY: 1520 1.1 christos return NULL; 1521 1.1 christos } 1522 1.1 christos 1523 1.1 christos return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym); 1524 1.1 christos } 1525 1.1 christos 1526 1.1 christos /* Support for core dump NOTE sections. */ 1527 1.1 christos 1528 1.1.1.9 christos static bool 1529 1.1 christos elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) 1530 1.1 christos { 1531 1.1 christos int offset; 1532 1.1 christos size_t size; 1533 1.1 christos 1534 1.1 christos switch (note->descsz) 1535 1.1 christos { 1536 1.1 christos default: 1537 1.1.1.9 christos return false; 1538 1.1 christos 1539 1.1 christos case 396: /* Linux/hppa */ 1540 1.1 christos /* pr_cursig */ 1541 1.1.1.2 christos elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); 1542 1.1 christos 1543 1.1 christos /* pr_pid */ 1544 1.1.1.2 christos elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24); 1545 1.1 christos 1546 1.1 christos /* pr_reg */ 1547 1.1 christos offset = 72; 1548 1.1 christos size = 320; 1549 1.1 christos 1550 1.1 christos break; 1551 1.1 christos } 1552 1.1 christos 1553 1.1 christos /* Make a ".reg/999" section. */ 1554 1.1 christos return _bfd_elfcore_make_pseudosection (abfd, ".reg", 1555 1.1 christos size, note->descpos + offset); 1556 1.1 christos } 1557 1.1 christos 1558 1.1.1.9 christos static bool 1559 1.1 christos elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) 1560 1.1 christos { 1561 1.1 christos switch (note->descsz) 1562 1.1 christos { 1563 1.1 christos default: 1564 1.1.1.9 christos return false; 1565 1.1 christos 1566 1.1 christos case 124: /* Linux/hppa elf_prpsinfo. */ 1567 1.1.1.2 christos elf_tdata (abfd)->core->program 1568 1.1 christos = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); 1569 1.1.1.2 christos elf_tdata (abfd)->core->command 1570 1.1 christos = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); 1571 1.1 christos } 1572 1.1 christos 1573 1.1 christos /* Note that for some reason, a spurious space is tacked 1574 1.1 christos onto the end of the args in some (at least one anyway) 1575 1.1 christos implementations, so strip it off if it exists. */ 1576 1.1 christos { 1577 1.1.1.2 christos char *command = elf_tdata (abfd)->core->command; 1578 1.1 christos int n = strlen (command); 1579 1.1 christos 1580 1.1 christos if (0 < n && command[n - 1] == ' ') 1581 1.1 christos command[n - 1] = '\0'; 1582 1.1 christos } 1583 1.1 christos 1584 1.1.1.9 christos return true; 1585 1.1 christos } 1586 1.1 christos 1587 1.1 christos /* Our own version of hide_symbol, so that we can keep plt entries for 1588 1.1 christos plabels. */ 1589 1.1 christos 1590 1.1 christos static void 1591 1.1 christos elf32_hppa_hide_symbol (struct bfd_link_info *info, 1592 1.1 christos struct elf_link_hash_entry *eh, 1593 1.1.1.9 christos bool force_local) 1594 1.1 christos { 1595 1.1 christos if (force_local) 1596 1.1 christos { 1597 1.1 christos eh->forced_local = 1; 1598 1.1 christos if (eh->dynindx != -1) 1599 1.1 christos { 1600 1.1 christos eh->dynindx = -1; 1601 1.1 christos _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, 1602 1.1 christos eh->dynstr_index); 1603 1.1 christos } 1604 1.1.1.3 christos 1605 1.1.1.3 christos /* PR 16082: Remove version information from hidden symbol. */ 1606 1.1.1.3 christos eh->verinfo.verdef = NULL; 1607 1.1.1.3 christos eh->verinfo.vertree = NULL; 1608 1.1 christos } 1609 1.1 christos 1610 1.1.1.2 christos /* STT_GNU_IFUNC symbol must go through PLT. */ 1611 1.1.1.2 christos if (! hppa_elf_hash_entry (eh)->plabel 1612 1.1.1.2 christos && eh->type != STT_GNU_IFUNC) 1613 1.1 christos { 1614 1.1 christos eh->needs_plt = 0; 1615 1.1.1.2 christos eh->plt = elf_hash_table (info)->init_plt_offset; 1616 1.1 christos } 1617 1.1 christos } 1618 1.1 christos 1619 1.1.1.7 christos /* Return true if we have dynamic relocs against H or any of its weak 1620 1.1.1.7 christos aliases, that apply to read-only sections. Cannot be used after 1621 1.1.1.7 christos size_dynamic_sections. */ 1622 1.1.1.7 christos 1623 1.1.1.9 christos static bool 1624 1.1.1.7 christos alias_readonly_dynrelocs (struct elf_link_hash_entry *eh) 1625 1.1.1.7 christos { 1626 1.1.1.7 christos struct elf32_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); 1627 1.1.1.7 christos do 1628 1.1.1.7 christos { 1629 1.1.1.8 christos if (_bfd_elf_readonly_dynrelocs (&hh->eh)) 1630 1.1.1.9 christos return true; 1631 1.1.1.7 christos hh = hppa_elf_hash_entry (hh->eh.u.alias); 1632 1.1.1.7 christos } while (hh != NULL && &hh->eh != eh); 1633 1.1.1.7 christos 1634 1.1.1.9 christos return false; 1635 1.1.1.7 christos } 1636 1.1.1.7 christos 1637 1.1 christos /* Adjust a symbol defined by a dynamic object and referenced by a 1638 1.1 christos regular object. The current definition is in some section of the 1639 1.1 christos dynamic object, but we're not including those sections. We have to 1640 1.1 christos change the definition to something the rest of the link can 1641 1.1 christos understand. */ 1642 1.1 christos 1643 1.1.1.9 christos static bool 1644 1.1 christos elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info, 1645 1.1 christos struct elf_link_hash_entry *eh) 1646 1.1 christos { 1647 1.1 christos struct elf32_hppa_link_hash_table *htab; 1648 1.1.1.6 christos asection *sec, *srel; 1649 1.1 christos 1650 1.1 christos /* If this is a function, put it in the procedure linkage table. We 1651 1.1 christos will fill in the contents of the procedure linkage table later. */ 1652 1.1 christos if (eh->type == STT_FUNC 1653 1.1 christos || eh->needs_plt) 1654 1.1 christos { 1655 1.1.1.9 christos bool local = (SYMBOL_CALLS_LOCAL (info, eh) 1656 1.1.1.9 christos || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)); 1657 1.1.1.7 christos /* Discard dyn_relocs when non-pic if we've decided that a 1658 1.1.1.7 christos function symbol is local. */ 1659 1.1.1.7 christos if (!bfd_link_pic (info) && local) 1660 1.1.1.8 christos eh->dyn_relocs = NULL; 1661 1.1.1.7 christos 1662 1.1.1.2 christos /* If the symbol is used by a plabel, we must allocate a PLT slot. 1663 1.1.1.2 christos The refcounts are not reliable when it has been hidden since 1664 1.1.1.2 christos hide_symbol can be called before the plabel flag is set. */ 1665 1.1.1.7 christos if (hppa_elf_hash_entry (eh)->plabel) 1666 1.1.1.2 christos eh->plt.refcount = 1; 1667 1.1.1.2 christos 1668 1.1.1.7 christos /* Note that unlike some other backends, the refcount is not 1669 1.1.1.7 christos incremented for a non-call (and non-plabel) function reference. */ 1670 1.1.1.7 christos else if (eh->plt.refcount <= 0 1671 1.1.1.7 christos || local) 1672 1.1 christos { 1673 1.1 christos /* The .plt entry is not needed when: 1674 1.1 christos a) Garbage collection has removed all references to the 1675 1.1 christos symbol, or 1676 1.1 christos b) We know for certain the symbol is defined in this 1677 1.1 christos object, and it's not a weak definition, nor is the symbol 1678 1.1 christos used by a plabel relocation. Either this object is the 1679 1.1 christos application or we are doing a shared symbolic link. */ 1680 1.1 christos eh->plt.offset = (bfd_vma) -1; 1681 1.1 christos eh->needs_plt = 0; 1682 1.1 christos } 1683 1.1 christos 1684 1.1.1.7 christos /* Unlike other targets, elf32-hppa.c does not define a function 1685 1.1.1.7 christos symbol in a non-pic executable on PLT stub code, so we don't 1686 1.1.1.7 christos have a local definition in that case. ie. dyn_relocs can't 1687 1.1.1.7 christos be discarded. */ 1688 1.1.1.7 christos 1689 1.1.1.7 christos /* Function symbols can't have copy relocs. */ 1690 1.1.1.9 christos return true; 1691 1.1 christos } 1692 1.1 christos else 1693 1.1 christos eh->plt.offset = (bfd_vma) -1; 1694 1.1 christos 1695 1.1.1.7 christos htab = hppa_link_hash_table (info); 1696 1.1.1.7 christos if (htab == NULL) 1697 1.1.1.9 christos return false; 1698 1.1.1.7 christos 1699 1.1 christos /* If this is a weak symbol, and there is a real definition, the 1700 1.1 christos processor independent code will have arranged for us to see the 1701 1.1 christos real definition first, and we can just use the same value. */ 1702 1.1.1.7 christos if (eh->is_weakalias) 1703 1.1 christos { 1704 1.1.1.7 christos struct elf_link_hash_entry *def = weakdef (eh); 1705 1.1.1.7 christos BFD_ASSERT (def->root.type == bfd_link_hash_defined); 1706 1.1.1.7 christos eh->root.u.def.section = def->root.u.def.section; 1707 1.1.1.7 christos eh->root.u.def.value = def->root.u.def.value; 1708 1.1.1.7 christos if (def->root.u.def.section == htab->etab.sdynbss 1709 1.1.1.7 christos || def->root.u.def.section == htab->etab.sdynrelro) 1710 1.1.1.8 christos eh->dyn_relocs = NULL; 1711 1.1.1.9 christos return true; 1712 1.1 christos } 1713 1.1 christos 1714 1.1 christos /* This is a reference to a symbol defined by a dynamic object which 1715 1.1 christos is not a function. */ 1716 1.1 christos 1717 1.1 christos /* If we are creating a shared library, we must presume that the 1718 1.1 christos only references to the symbol are via the global offset table. 1719 1.1 christos For such cases we need not do anything here; the relocations will 1720 1.1 christos be handled correctly by relocate_section. */ 1721 1.1.1.5 christos if (bfd_link_pic (info)) 1722 1.1.1.9 christos return true; 1723 1.1 christos 1724 1.1 christos /* If there are no references to this symbol that do not use the 1725 1.1 christos GOT, we don't need to generate a copy reloc. */ 1726 1.1 christos if (!eh->non_got_ref) 1727 1.1.1.9 christos return true; 1728 1.1 christos 1729 1.1.1.7 christos /* If -z nocopyreloc was given, we won't generate them either. */ 1730 1.1.1.7 christos if (info->nocopyreloc) 1731 1.1.1.9 christos return true; 1732 1.1 christos 1733 1.1.1.7 christos /* If we don't find any dynamic relocs in read-only sections, then 1734 1.1.1.7 christos we'll be keeping the dynamic relocs and avoiding the copy reloc. */ 1735 1.1.1.7 christos if (ELIMINATE_COPY_RELOCS 1736 1.1.1.7 christos && !alias_readonly_dynrelocs (eh)) 1737 1.1.1.9 christos return true; 1738 1.1 christos 1739 1.1 christos /* We must allocate the symbol in our .dynbss section, which will 1740 1.1 christos become part of the .bss section of the executable. There will be 1741 1.1 christos an entry for this symbol in the .dynsym section. The dynamic 1742 1.1 christos object will contain position independent code, so all references 1743 1.1 christos from the dynamic object to this symbol will go through the global 1744 1.1 christos offset table. The dynamic linker will use the .dynsym entry to 1745 1.1 christos determine the address it must put in the global offset table, so 1746 1.1 christos both the dynamic object and the regular object will refer to the 1747 1.1 christos same memory location for the variable. */ 1748 1.1.1.6 christos if ((eh->root.u.def.section->flags & SEC_READONLY) != 0) 1749 1.1.1.6 christos { 1750 1.1.1.6 christos sec = htab->etab.sdynrelro; 1751 1.1.1.6 christos srel = htab->etab.sreldynrelro; 1752 1.1.1.6 christos } 1753 1.1.1.6 christos else 1754 1.1.1.6 christos { 1755 1.1.1.6 christos sec = htab->etab.sdynbss; 1756 1.1.1.6 christos srel = htab->etab.srelbss; 1757 1.1.1.6 christos } 1758 1.1.1.2 christos if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0) 1759 1.1 christos { 1760 1.1.1.7 christos /* We must generate a COPY reloc to tell the dynamic linker to 1761 1.1.1.7 christos copy the initial value out of the dynamic object and into the 1762 1.1.1.7 christos runtime process image. */ 1763 1.1.1.6 christos srel->size += sizeof (Elf32_External_Rela); 1764 1.1 christos eh->needs_copy = 1; 1765 1.1 christos } 1766 1.1 christos 1767 1.1.1.7 christos /* We no longer want dyn_relocs. */ 1768 1.1.1.8 christos eh->dyn_relocs = NULL; 1769 1.1.1.4 christos return _bfd_elf_adjust_dynamic_copy (info, eh, sec); 1770 1.1 christos } 1771 1.1 christos 1772 1.1.1.7 christos /* If EH is undefined, make it dynamic if that makes sense. */ 1773 1.1.1.6 christos 1774 1.1.1.9 christos static bool 1775 1.1.1.7 christos ensure_undef_dynamic (struct bfd_link_info *info, 1776 1.1.1.7 christos struct elf_link_hash_entry *eh) 1777 1.1.1.6 christos { 1778 1.1.1.7 christos struct elf_link_hash_table *htab = elf_hash_table (info); 1779 1.1.1.7 christos 1780 1.1.1.7 christos if (htab->dynamic_sections_created 1781 1.1.1.7 christos && (eh->root.type == bfd_link_hash_undefweak 1782 1.1.1.7 christos || eh->root.type == bfd_link_hash_undefined) 1783 1.1.1.7 christos && eh->dynindx == -1 1784 1.1.1.6 christos && !eh->forced_local 1785 1.1.1.6 christos && eh->type != STT_PARISC_MILLI 1786 1.1.1.7 christos && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh) 1787 1.1.1.6 christos && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT) 1788 1.1.1.6 christos return bfd_elf_link_record_dynamic_symbol (info, eh); 1789 1.1.1.9 christos return true; 1790 1.1.1.6 christos } 1791 1.1.1.6 christos 1792 1.1 christos /* Allocate space in the .plt for entries that won't have relocations. 1793 1.1 christos ie. plabel entries. */ 1794 1.1 christos 1795 1.1.1.9 christos static bool 1796 1.1 christos allocate_plt_static (struct elf_link_hash_entry *eh, void *inf) 1797 1.1 christos { 1798 1.1 christos struct bfd_link_info *info; 1799 1.1 christos struct elf32_hppa_link_hash_table *htab; 1800 1.1 christos struct elf32_hppa_link_hash_entry *hh; 1801 1.1 christos asection *sec; 1802 1.1 christos 1803 1.1 christos if (eh->root.type == bfd_link_hash_indirect) 1804 1.1.1.9 christos return true; 1805 1.1 christos 1806 1.1 christos info = (struct bfd_link_info *) inf; 1807 1.1 christos hh = hppa_elf_hash_entry (eh); 1808 1.1 christos htab = hppa_link_hash_table (info); 1809 1.1 christos if (htab == NULL) 1810 1.1.1.9 christos return false; 1811 1.1 christos 1812 1.1 christos if (htab->etab.dynamic_sections_created 1813 1.1 christos && eh->plt.refcount > 0) 1814 1.1 christos { 1815 1.1.1.7 christos if (!ensure_undef_dynamic (info, eh)) 1816 1.1.1.9 christos return false; 1817 1.1 christos 1818 1.1.1.5 christos if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh)) 1819 1.1 christos { 1820 1.1 christos /* Allocate these later. From this point on, h->plabel 1821 1.1 christos means that the plt entry is only used by a plabel. 1822 1.1 christos We'll be using a normal plt entry for this symbol, so 1823 1.1 christos clear the plabel indicator. */ 1824 1.1.1.2 christos 1825 1.1 christos hh->plabel = 0; 1826 1.1 christos } 1827 1.1 christos else if (hh->plabel) 1828 1.1 christos { 1829 1.1 christos /* Make an entry in the .plt section for plabel references 1830 1.1 christos that won't have a .plt entry for other reasons. */ 1831 1.1.1.6 christos sec = htab->etab.splt; 1832 1.1 christos eh->plt.offset = sec->size; 1833 1.1 christos sec->size += PLT_ENTRY_SIZE; 1834 1.1.1.6 christos if (bfd_link_pic (info)) 1835 1.1.1.6 christos htab->etab.srelplt->size += sizeof (Elf32_External_Rela); 1836 1.1 christos } 1837 1.1 christos else 1838 1.1 christos { 1839 1.1 christos /* No .plt entry needed. */ 1840 1.1 christos eh->plt.offset = (bfd_vma) -1; 1841 1.1 christos eh->needs_plt = 0; 1842 1.1 christos } 1843 1.1 christos } 1844 1.1 christos else 1845 1.1 christos { 1846 1.1 christos eh->plt.offset = (bfd_vma) -1; 1847 1.1 christos eh->needs_plt = 0; 1848 1.1 christos } 1849 1.1 christos 1850 1.1.1.9 christos return true; 1851 1.1 christos } 1852 1.1 christos 1853 1.1.1.7 christos /* Calculate size of GOT entries for symbol given its TLS_TYPE. */ 1854 1.1.1.7 christos 1855 1.1.1.7 christos static inline unsigned int 1856 1.1.1.7 christos got_entries_needed (int tls_type) 1857 1.1.1.7 christos { 1858 1.1.1.7 christos unsigned int need = 0; 1859 1.1.1.7 christos 1860 1.1.1.7 christos if ((tls_type & GOT_NORMAL) != 0) 1861 1.1.1.7 christos need += GOT_ENTRY_SIZE; 1862 1.1.1.7 christos if ((tls_type & GOT_TLS_GD) != 0) 1863 1.1.1.7 christos need += GOT_ENTRY_SIZE * 2; 1864 1.1.1.7 christos if ((tls_type & GOT_TLS_IE) != 0) 1865 1.1.1.7 christos need += GOT_ENTRY_SIZE; 1866 1.1.1.7 christos return need; 1867 1.1.1.7 christos } 1868 1.1.1.7 christos 1869 1.1.1.7 christos /* Calculate size of relocs needed for symbol given its TLS_TYPE and 1870 1.1.1.7 christos NEEDed GOT entries. TPREL_KNOWN says a TPREL offset can be 1871 1.1.1.7 christos calculated at link time. DTPREL_KNOWN says the same for a DTPREL 1872 1.1.1.7 christos offset. */ 1873 1.1.1.7 christos 1874 1.1.1.7 christos static inline unsigned int 1875 1.1.1.7 christos got_relocs_needed (int tls_type, unsigned int need, 1876 1.1.1.9 christos bool dtprel_known, bool tprel_known) 1877 1.1.1.7 christos { 1878 1.1.1.7 christos /* All the entries we allocated need relocs. 1879 1.1.1.7 christos Except for GD and IE with local symbols. */ 1880 1.1.1.7 christos if ((tls_type & GOT_TLS_GD) != 0 && dtprel_known) 1881 1.1.1.7 christos need -= GOT_ENTRY_SIZE; 1882 1.1.1.7 christos if ((tls_type & GOT_TLS_IE) != 0 && tprel_known) 1883 1.1.1.7 christos need -= GOT_ENTRY_SIZE; 1884 1.1.1.7 christos return need * sizeof (Elf32_External_Rela) / GOT_ENTRY_SIZE; 1885 1.1.1.7 christos } 1886 1.1.1.7 christos 1887 1.1 christos /* Allocate space in .plt, .got and associated reloc sections for 1888 1.1 christos global syms. */ 1889 1.1 christos 1890 1.1.1.9 christos static bool 1891 1.1 christos allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf) 1892 1.1 christos { 1893 1.1 christos struct bfd_link_info *info; 1894 1.1 christos struct elf32_hppa_link_hash_table *htab; 1895 1.1 christos asection *sec; 1896 1.1 christos struct elf32_hppa_link_hash_entry *hh; 1897 1.1.1.7 christos struct elf_dyn_relocs *hdh_p; 1898 1.1 christos 1899 1.1 christos if (eh->root.type == bfd_link_hash_indirect) 1900 1.1.1.9 christos return true; 1901 1.1 christos 1902 1.1 christos info = inf; 1903 1.1 christos htab = hppa_link_hash_table (info); 1904 1.1 christos if (htab == NULL) 1905 1.1.1.9 christos return false; 1906 1.1 christos 1907 1.1 christos hh = hppa_elf_hash_entry (eh); 1908 1.1.1.2 christos 1909 1.1 christos if (htab->etab.dynamic_sections_created 1910 1.1 christos && eh->plt.offset != (bfd_vma) -1 1911 1.1 christos && !hh->plabel 1912 1.1 christos && eh->plt.refcount > 0) 1913 1.1 christos { 1914 1.1 christos /* Make an entry in the .plt section. */ 1915 1.1.1.6 christos sec = htab->etab.splt; 1916 1.1 christos eh->plt.offset = sec->size; 1917 1.1 christos sec->size += PLT_ENTRY_SIZE; 1918 1.1 christos 1919 1.1 christos /* We also need to make an entry in the .rela.plt section. */ 1920 1.1.1.6 christos htab->etab.srelplt->size += sizeof (Elf32_External_Rela); 1921 1.1 christos htab->need_plt_stub = 1; 1922 1.1 christos } 1923 1.1 christos 1924 1.1 christos if (eh->got.refcount > 0) 1925 1.1 christos { 1926 1.1.1.7 christos unsigned int need; 1927 1.1.1.7 christos 1928 1.1.1.7 christos if (!ensure_undef_dynamic (info, eh)) 1929 1.1.1.9 christos return false; 1930 1.1 christos 1931 1.1.1.6 christos sec = htab->etab.sgot; 1932 1.1 christos eh->got.offset = sec->size; 1933 1.1.1.7 christos need = got_entries_needed (hh->tls_type); 1934 1.1.1.7 christos sec->size += need; 1935 1.1 christos if (htab->etab.dynamic_sections_created 1936 1.1.1.7 christos && (bfd_link_dll (info) 1937 1.1.1.7 christos || (bfd_link_pic (info) && (hh->tls_type & GOT_NORMAL) != 0) 1938 1.1 christos || (eh->dynindx != -1 1939 1.1.1.7 christos && !SYMBOL_REFERENCES_LOCAL (info, eh))) 1940 1.1.1.7 christos && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)) 1941 1.1 christos { 1942 1.1.1.9 christos bool local = SYMBOL_REFERENCES_LOCAL (info, eh); 1943 1.1.1.7 christos htab->etab.srelgot->size 1944 1.1.1.7 christos += got_relocs_needed (hh->tls_type, need, local, 1945 1.1.1.7 christos local && bfd_link_executable (info)); 1946 1.1 christos } 1947 1.1 christos } 1948 1.1 christos else 1949 1.1 christos eh->got.offset = (bfd_vma) -1; 1950 1.1 christos 1951 1.1.1.7 christos /* If no dynamic sections we can't have dynamic relocs. */ 1952 1.1.1.7 christos if (!htab->etab.dynamic_sections_created) 1953 1.1.1.8 christos eh->dyn_relocs = NULL; 1954 1.1.1.7 christos 1955 1.1.1.7 christos /* Discard relocs on undefined syms with non-default visibility. */ 1956 1.1.1.7 christos else if ((eh->root.type == bfd_link_hash_undefined 1957 1.1.1.7 christos && ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT) 1958 1.1.1.7 christos || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)) 1959 1.1.1.8 christos eh->dyn_relocs = NULL; 1960 1.1.1.7 christos 1961 1.1.1.8 christos if (eh->dyn_relocs == NULL) 1962 1.1.1.9 christos return true; 1963 1.1 christos 1964 1.1 christos /* If this is a -Bsymbolic shared link, then we need to discard all 1965 1.1 christos space allocated for dynamic pc-relative relocs against symbols 1966 1.1 christos defined in a regular object. For the normal shared case, discard 1967 1.1 christos space for relocs that have become local due to symbol visibility 1968 1.1 christos changes. */ 1969 1.1.1.5 christos if (bfd_link_pic (info)) 1970 1.1 christos { 1971 1.1 christos #if RELATIVE_DYNRELOCS 1972 1.1 christos if (SYMBOL_CALLS_LOCAL (info, eh)) 1973 1.1 christos { 1974 1.1.1.7 christos struct elf_dyn_relocs **hdh_pp; 1975 1.1 christos 1976 1.1.1.8 christos for (hdh_pp = &eh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; ) 1977 1.1 christos { 1978 1.1.1.7 christos hdh_p->count -= hdh_p->pc_count; 1979 1.1.1.7 christos hdh_p->pc_count = 0; 1980 1.1 christos if (hdh_p->count == 0) 1981 1.1.1.7 christos *hdh_pp = hdh_p->next; 1982 1.1 christos else 1983 1.1.1.7 christos hdh_pp = &hdh_p->next; 1984 1.1 christos } 1985 1.1 christos } 1986 1.1 christos #endif 1987 1.1 christos 1988 1.1.1.8 christos if (eh->dyn_relocs != NULL) 1989 1.1 christos { 1990 1.1.1.7 christos if (!ensure_undef_dynamic (info, eh)) 1991 1.1.1.9 christos return false; 1992 1.1 christos } 1993 1.1 christos } 1994 1.1.1.7 christos else if (ELIMINATE_COPY_RELOCS) 1995 1.1 christos { 1996 1.1 christos /* For the non-shared case, discard space for relocs against 1997 1.1 christos symbols which turn out to need copy relocs or are not 1998 1.1 christos dynamic. */ 1999 1.1.1.2 christos 2000 1.1.1.7 christos if (eh->dynamic_adjusted 2001 1.1.1.7 christos && !eh->def_regular 2002 1.1.1.7 christos && !ELF_COMMON_DEF_P (eh)) 2003 1.1 christos { 2004 1.1.1.7 christos if (!ensure_undef_dynamic (info, eh)) 2005 1.1.1.9 christos return false; 2006 1.1 christos 2007 1.1.1.7 christos if (eh->dynindx == -1) 2008 1.1.1.8 christos eh->dyn_relocs = NULL; 2009 1.1 christos } 2010 1.1.1.7 christos else 2011 1.1.1.8 christos eh->dyn_relocs = NULL; 2012 1.1 christos } 2013 1.1 christos 2014 1.1 christos /* Finally, allocate space. */ 2015 1.1.1.8 christos for (hdh_p = eh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->next) 2016 1.1 christos { 2017 1.1 christos asection *sreloc = elf_section_data (hdh_p->sec)->sreloc; 2018 1.1 christos sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela); 2019 1.1 christos } 2020 1.1 christos 2021 1.1.1.9 christos return true; 2022 1.1 christos } 2023 1.1 christos 2024 1.1 christos /* This function is called via elf_link_hash_traverse to force 2025 1.1 christos millicode symbols local so they do not end up as globals in the 2026 1.1 christos dynamic symbol table. We ought to be able to do this in 2027 1.1 christos adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called 2028 1.1 christos for all dynamic symbols. Arguably, this is a bug in 2029 1.1 christos elf_adjust_dynamic_symbol. */ 2030 1.1 christos 2031 1.1.1.9 christos static bool 2032 1.1 christos clobber_millicode_symbols (struct elf_link_hash_entry *eh, 2033 1.1.1.9 christos void *info) 2034 1.1 christos { 2035 1.1 christos if (eh->type == STT_PARISC_MILLI 2036 1.1 christos && !eh->forced_local) 2037 1.1.1.9 christos elf32_hppa_hide_symbol ((struct bfd_link_info *) info, eh, true); 2038 1.1.1.9 christos return true; 2039 1.1 christos } 2040 1.1 christos 2041 1.1 christos /* Set the sizes of the dynamic sections. */ 2042 1.1 christos 2043 1.1.1.9 christos static bool 2044 1.1.1.10 christos elf32_hppa_late_size_sections (bfd *output_bfd ATTRIBUTE_UNUSED, 2045 1.1.1.10 christos struct bfd_link_info *info) 2046 1.1 christos { 2047 1.1 christos struct elf32_hppa_link_hash_table *htab; 2048 1.1 christos bfd *dynobj; 2049 1.1 christos bfd *ibfd; 2050 1.1 christos asection *sec; 2051 1.1.1.9 christos bool relocs; 2052 1.1 christos 2053 1.1 christos htab = hppa_link_hash_table (info); 2054 1.1 christos if (htab == NULL) 2055 1.1.1.9 christos return false; 2056 1.1 christos 2057 1.1 christos dynobj = htab->etab.dynobj; 2058 1.1 christos if (dynobj == NULL) 2059 1.1.1.10 christos return true; 2060 1.1 christos 2061 1.1 christos if (htab->etab.dynamic_sections_created) 2062 1.1 christos { 2063 1.1 christos /* Set the contents of the .interp section to the interpreter. */ 2064 1.1.1.5 christos if (bfd_link_executable (info) && !info->nointerp) 2065 1.1 christos { 2066 1.1.1.2 christos sec = bfd_get_linker_section (dynobj, ".interp"); 2067 1.1 christos if (sec == NULL) 2068 1.1 christos abort (); 2069 1.1 christos sec->size = sizeof ELF_DYNAMIC_INTERPRETER; 2070 1.1 christos sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; 2071 1.1.1.12 christos sec->alloced = 1; 2072 1.1 christos } 2073 1.1 christos 2074 1.1 christos /* Force millicode symbols local. */ 2075 1.1 christos elf_link_hash_traverse (&htab->etab, 2076 1.1 christos clobber_millicode_symbols, 2077 1.1 christos info); 2078 1.1 christos } 2079 1.1 christos 2080 1.1 christos /* Set up .got and .plt offsets for local syms, and space for local 2081 1.1 christos dynamic relocs. */ 2082 1.1.1.4 christos for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) 2083 1.1 christos { 2084 1.1 christos bfd_signed_vma *local_got; 2085 1.1 christos bfd_signed_vma *end_local_got; 2086 1.1 christos bfd_signed_vma *local_plt; 2087 1.1 christos bfd_signed_vma *end_local_plt; 2088 1.1 christos bfd_size_type locsymcount; 2089 1.1 christos Elf_Internal_Shdr *symtab_hdr; 2090 1.1 christos asection *srel; 2091 1.1 christos char *local_tls_type; 2092 1.1 christos 2093 1.1 christos if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) 2094 1.1 christos continue; 2095 1.1 christos 2096 1.1 christos for (sec = ibfd->sections; sec != NULL; sec = sec->next) 2097 1.1 christos { 2098 1.1.1.7 christos struct elf_dyn_relocs *hdh_p; 2099 1.1 christos 2100 1.1.1.7 christos for (hdh_p = ((struct elf_dyn_relocs *) 2101 1.1 christos elf_section_data (sec)->local_dynrel); 2102 1.1 christos hdh_p != NULL; 2103 1.1.1.7 christos hdh_p = hdh_p->next) 2104 1.1 christos { 2105 1.1 christos if (!bfd_is_abs_section (hdh_p->sec) 2106 1.1 christos && bfd_is_abs_section (hdh_p->sec->output_section)) 2107 1.1 christos { 2108 1.1 christos /* Input section has been discarded, either because 2109 1.1 christos it is a copy of a linkonce section or due to 2110 1.1 christos linker script /DISCARD/, so we'll be discarding 2111 1.1 christos the relocs too. */ 2112 1.1 christos } 2113 1.1 christos else if (hdh_p->count != 0) 2114 1.1 christos { 2115 1.1 christos srel = elf_section_data (hdh_p->sec)->sreloc; 2116 1.1 christos srel->size += hdh_p->count * sizeof (Elf32_External_Rela); 2117 1.1 christos if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0) 2118 1.1 christos info->flags |= DF_TEXTREL; 2119 1.1 christos } 2120 1.1 christos } 2121 1.1 christos } 2122 1.1 christos 2123 1.1 christos local_got = elf_local_got_refcounts (ibfd); 2124 1.1 christos if (!local_got) 2125 1.1 christos continue; 2126 1.1 christos 2127 1.1 christos symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; 2128 1.1 christos locsymcount = symtab_hdr->sh_info; 2129 1.1 christos end_local_got = local_got + locsymcount; 2130 1.1 christos local_tls_type = hppa_elf_local_got_tls_type (ibfd); 2131 1.1.1.6 christos sec = htab->etab.sgot; 2132 1.1.1.6 christos srel = htab->etab.srelgot; 2133 1.1 christos for (; local_got < end_local_got; ++local_got) 2134 1.1 christos { 2135 1.1 christos if (*local_got > 0) 2136 1.1 christos { 2137 1.1.1.7 christos unsigned int need; 2138 1.1.1.7 christos 2139 1.1 christos *local_got = sec->size; 2140 1.1.1.7 christos need = got_entries_needed (*local_tls_type); 2141 1.1.1.7 christos sec->size += need; 2142 1.1.1.7 christos if (bfd_link_dll (info) 2143 1.1.1.7 christos || (bfd_link_pic (info) 2144 1.1.1.7 christos && (*local_tls_type & GOT_NORMAL) != 0)) 2145 1.1.1.7 christos htab->etab.srelgot->size 2146 1.1.1.9 christos += got_relocs_needed (*local_tls_type, need, true, 2147 1.1.1.7 christos bfd_link_executable (info)); 2148 1.1 christos } 2149 1.1 christos else 2150 1.1 christos *local_got = (bfd_vma) -1; 2151 1.1 christos 2152 1.1 christos ++local_tls_type; 2153 1.1 christos } 2154 1.1 christos 2155 1.1 christos local_plt = end_local_got; 2156 1.1 christos end_local_plt = local_plt + locsymcount; 2157 1.1 christos if (! htab->etab.dynamic_sections_created) 2158 1.1 christos { 2159 1.1 christos /* Won't be used, but be safe. */ 2160 1.1 christos for (; local_plt < end_local_plt; ++local_plt) 2161 1.1 christos *local_plt = (bfd_vma) -1; 2162 1.1 christos } 2163 1.1 christos else 2164 1.1 christos { 2165 1.1.1.6 christos sec = htab->etab.splt; 2166 1.1.1.6 christos srel = htab->etab.srelplt; 2167 1.1 christos for (; local_plt < end_local_plt; ++local_plt) 2168 1.1 christos { 2169 1.1 christos if (*local_plt > 0) 2170 1.1 christos { 2171 1.1 christos *local_plt = sec->size; 2172 1.1 christos sec->size += PLT_ENTRY_SIZE; 2173 1.1.1.5 christos if (bfd_link_pic (info)) 2174 1.1 christos srel->size += sizeof (Elf32_External_Rela); 2175 1.1 christos } 2176 1.1 christos else 2177 1.1 christos *local_plt = (bfd_vma) -1; 2178 1.1 christos } 2179 1.1 christos } 2180 1.1 christos } 2181 1.1.1.2 christos 2182 1.1 christos if (htab->tls_ldm_got.refcount > 0) 2183 1.1 christos { 2184 1.1.1.2 christos /* Allocate 2 got entries and 1 dynamic reloc for 2185 1.1.1.7 christos R_PARISC_TLS_DTPMOD32 relocs. */ 2186 1.1.1.6 christos htab->tls_ldm_got.offset = htab->etab.sgot->size; 2187 1.1.1.6 christos htab->etab.sgot->size += (GOT_ENTRY_SIZE * 2); 2188 1.1.1.6 christos htab->etab.srelgot->size += sizeof (Elf32_External_Rela); 2189 1.1 christos } 2190 1.1 christos else 2191 1.1 christos htab->tls_ldm_got.offset = -1; 2192 1.1 christos 2193 1.1 christos /* Do all the .plt entries without relocs first. The dynamic linker 2194 1.1 christos uses the last .plt reloc to find the end of the .plt (and hence 2195 1.1 christos the start of the .got) for lazy linking. */ 2196 1.1 christos elf_link_hash_traverse (&htab->etab, allocate_plt_static, info); 2197 1.1 christos 2198 1.1 christos /* Allocate global sym .plt and .got entries, and space for global 2199 1.1 christos sym dynamic relocs. */ 2200 1.1 christos elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info); 2201 1.1 christos 2202 1.1 christos /* The check_relocs and adjust_dynamic_symbol entry points have 2203 1.1 christos determined the sizes of the various dynamic sections. Allocate 2204 1.1 christos memory for them. */ 2205 1.1.1.9 christos relocs = false; 2206 1.1 christos for (sec = dynobj->sections; sec != NULL; sec = sec->next) 2207 1.1 christos { 2208 1.1 christos if ((sec->flags & SEC_LINKER_CREATED) == 0) 2209 1.1 christos continue; 2210 1.1 christos 2211 1.1.1.6 christos if (sec == htab->etab.splt) 2212 1.1 christos { 2213 1.1 christos if (htab->need_plt_stub) 2214 1.1 christos { 2215 1.1 christos /* Make space for the plt stub at the end of the .plt 2216 1.1 christos section. We want this stub right at the end, up 2217 1.1 christos against the .got section. */ 2218 1.1.1.8 christos int gotalign = bfd_section_alignment (htab->etab.sgot); 2219 1.1.1.8 christos int align = gotalign > 3 ? gotalign : 3; 2220 1.1 christos bfd_size_type mask; 2221 1.1 christos 2222 1.1.1.12 christos (void) bfd_link_align_section (sec, align); 2223 1.1 christos mask = ((bfd_size_type) 1 << gotalign) - 1; 2224 1.1 christos sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask; 2225 1.1 christos } 2226 1.1 christos } 2227 1.1.1.6 christos else if (sec == htab->etab.sgot 2228 1.1.1.6 christos || sec == htab->etab.sdynbss 2229 1.1.1.6 christos || sec == htab->etab.sdynrelro) 2230 1.1 christos ; 2231 1.1.1.9 christos else if (startswith (bfd_section_name (sec), ".rela")) 2232 1.1 christos { 2233 1.1 christos if (sec->size != 0) 2234 1.1 christos { 2235 1.1 christos /* Remember whether there are any reloc sections other 2236 1.1 christos than .rela.plt. */ 2237 1.1.1.6 christos if (sec != htab->etab.srelplt) 2238 1.1.1.9 christos relocs = true; 2239 1.1 christos 2240 1.1 christos /* We use the reloc_count field as a counter if we need 2241 1.1 christos to copy relocs into the output file. */ 2242 1.1 christos sec->reloc_count = 0; 2243 1.1 christos } 2244 1.1 christos } 2245 1.1 christos else 2246 1.1 christos { 2247 1.1 christos /* It's not one of our sections, so don't allocate space. */ 2248 1.1 christos continue; 2249 1.1 christos } 2250 1.1 christos 2251 1.1 christos if (sec->size == 0) 2252 1.1 christos { 2253 1.1 christos /* If we don't need this section, strip it from the 2254 1.1 christos output file. This is mostly to handle .rela.bss and 2255 1.1 christos .rela.plt. We must create both sections in 2256 1.1 christos create_dynamic_sections, because they must be created 2257 1.1 christos before the linker maps input sections to output 2258 1.1 christos sections. The linker does that before 2259 1.1 christos adjust_dynamic_symbol is called, and it is that 2260 1.1 christos function which decides whether anything needs to go 2261 1.1 christos into these sections. */ 2262 1.1 christos sec->flags |= SEC_EXCLUDE; 2263 1.1 christos continue; 2264 1.1 christos } 2265 1.1 christos 2266 1.1 christos if ((sec->flags & SEC_HAS_CONTENTS) == 0) 2267 1.1 christos continue; 2268 1.1 christos 2269 1.1 christos /* Allocate memory for the section contents. Zero it, because 2270 1.1 christos we may not fill in all the reloc sections. */ 2271 1.1 christos sec->contents = bfd_zalloc (dynobj, sec->size); 2272 1.1 christos if (sec->contents == NULL) 2273 1.1.1.9 christos return false; 2274 1.1.1.12 christos sec->alloced = 1; 2275 1.1 christos } 2276 1.1 christos 2277 1.1.1.8 christos return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs); 2278 1.1 christos } 2279 1.1 christos 2280 1.1 christos /* External entry points for sizing and building linker stubs. */ 2281 1.1 christos 2282 1.1 christos /* Set up various things so that we can make a list of input sections 2283 1.1 christos for each output section included in the link. Returns -1 on error, 2284 1.1 christos 0 when no stubs will be needed, and 1 on success. */ 2285 1.1 christos 2286 1.1 christos int 2287 1.1 christos elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info) 2288 1.1 christos { 2289 1.1 christos bfd *input_bfd; 2290 1.1 christos unsigned int bfd_count; 2291 1.1.1.5 christos unsigned int top_id, top_index; 2292 1.1 christos asection *section; 2293 1.1 christos asection **input_list, **list; 2294 1.1.1.8 christos size_t amt; 2295 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); 2296 1.1 christos 2297 1.1 christos if (htab == NULL) 2298 1.1 christos return -1; 2299 1.1 christos 2300 1.1 christos /* Count the number of input BFDs and find the top input section id. */ 2301 1.1 christos for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; 2302 1.1 christos input_bfd != NULL; 2303 1.1.1.4 christos input_bfd = input_bfd->link.next) 2304 1.1 christos { 2305 1.1 christos bfd_count += 1; 2306 1.1 christos for (section = input_bfd->sections; 2307 1.1 christos section != NULL; 2308 1.1 christos section = section->next) 2309 1.1 christos { 2310 1.1 christos if (top_id < section->id) 2311 1.1 christos top_id = section->id; 2312 1.1 christos } 2313 1.1 christos } 2314 1.1 christos htab->bfd_count = bfd_count; 2315 1.1 christos 2316 1.1 christos amt = sizeof (struct map_stub) * (top_id + 1); 2317 1.1 christos htab->stub_group = bfd_zmalloc (amt); 2318 1.1 christos if (htab->stub_group == NULL) 2319 1.1 christos return -1; 2320 1.1 christos 2321 1.1 christos /* We can't use output_bfd->section_count here to find the top output 2322 1.1 christos section index as some sections may have been removed, and 2323 1.1 christos strip_excluded_output_sections doesn't renumber the indices. */ 2324 1.1 christos for (section = output_bfd->sections, top_index = 0; 2325 1.1 christos section != NULL; 2326 1.1 christos section = section->next) 2327 1.1 christos { 2328 1.1 christos if (top_index < section->index) 2329 1.1 christos top_index = section->index; 2330 1.1 christos } 2331 1.1 christos 2332 1.1 christos htab->top_index = top_index; 2333 1.1 christos amt = sizeof (asection *) * (top_index + 1); 2334 1.1 christos input_list = bfd_malloc (amt); 2335 1.1 christos htab->input_list = input_list; 2336 1.1 christos if (input_list == NULL) 2337 1.1 christos return -1; 2338 1.1 christos 2339 1.1 christos /* For sections we aren't interested in, mark their entries with a 2340 1.1 christos value we can check later. */ 2341 1.1 christos list = input_list + top_index; 2342 1.1 christos do 2343 1.1 christos *list = bfd_abs_section_ptr; 2344 1.1 christos while (list-- != input_list); 2345 1.1 christos 2346 1.1 christos for (section = output_bfd->sections; 2347 1.1 christos section != NULL; 2348 1.1 christos section = section->next) 2349 1.1 christos { 2350 1.1 christos if ((section->flags & SEC_CODE) != 0) 2351 1.1 christos input_list[section->index] = NULL; 2352 1.1 christos } 2353 1.1 christos 2354 1.1 christos return 1; 2355 1.1 christos } 2356 1.1 christos 2357 1.1 christos /* The linker repeatedly calls this function for each input section, 2358 1.1 christos in the order that input sections are linked into output sections. 2359 1.1 christos Build lists of input sections to determine groupings between which 2360 1.1 christos we may insert linker stubs. */ 2361 1.1 christos 2362 1.1 christos void 2363 1.1 christos elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec) 2364 1.1 christos { 2365 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); 2366 1.1 christos 2367 1.1 christos if (htab == NULL) 2368 1.1 christos return; 2369 1.1 christos 2370 1.1 christos if (isec->output_section->index <= htab->top_index) 2371 1.1 christos { 2372 1.1 christos asection **list = htab->input_list + isec->output_section->index; 2373 1.1 christos if (*list != bfd_abs_section_ptr) 2374 1.1 christos { 2375 1.1 christos /* Steal the link_sec pointer for our list. */ 2376 1.1 christos #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) 2377 1.1 christos /* This happens to make the list in reverse order, 2378 1.1 christos which is what we want. */ 2379 1.1 christos PREV_SEC (isec) = *list; 2380 1.1 christos *list = isec; 2381 1.1 christos } 2382 1.1 christos } 2383 1.1 christos } 2384 1.1 christos 2385 1.1 christos /* See whether we can group stub sections together. Grouping stub 2386 1.1 christos sections may result in fewer stubs. More importantly, we need to 2387 1.1 christos put all .init* and .fini* stubs at the beginning of the .init or 2388 1.1 christos .fini output sections respectively, because glibc splits the 2389 1.1 christos _init and _fini functions into multiple parts. Putting a stub in 2390 1.1 christos the middle of a function is not a good idea. */ 2391 1.1 christos 2392 1.1 christos static void 2393 1.1 christos group_sections (struct elf32_hppa_link_hash_table *htab, 2394 1.1 christos bfd_size_type stub_group_size, 2395 1.1.1.9 christos bool stubs_always_before_branch) 2396 1.1 christos { 2397 1.1 christos asection **list = htab->input_list + htab->top_index; 2398 1.1 christos do 2399 1.1 christos { 2400 1.1 christos asection *tail = *list; 2401 1.1 christos if (tail == bfd_abs_section_ptr) 2402 1.1 christos continue; 2403 1.1 christos while (tail != NULL) 2404 1.1 christos { 2405 1.1 christos asection *curr; 2406 1.1 christos asection *prev; 2407 1.1 christos bfd_size_type total; 2408 1.1.1.9 christos bool big_sec; 2409 1.1 christos 2410 1.1 christos curr = tail; 2411 1.1 christos total = tail->size; 2412 1.1 christos big_sec = total >= stub_group_size; 2413 1.1 christos 2414 1.1 christos while ((prev = PREV_SEC (curr)) != NULL 2415 1.1 christos && ((total += curr->output_offset - prev->output_offset) 2416 1.1 christos < stub_group_size)) 2417 1.1 christos curr = prev; 2418 1.1 christos 2419 1.1 christos /* OK, the size from the start of CURR to the end is less 2420 1.1 christos than 240000 bytes and thus can be handled by one stub 2421 1.1 christos section. (or the tail section is itself larger than 2422 1.1 christos 240000 bytes, in which case we may be toast.) 2423 1.1 christos We should really be keeping track of the total size of 2424 1.1 christos stubs added here, as stubs contribute to the final output 2425 1.1 christos section size. That's a little tricky, and this way will 2426 1.1 christos only break if stubs added total more than 22144 bytes, or 2427 1.1 christos 2768 long branch stubs. It seems unlikely for more than 2428 1.1 christos 2768 different functions to be called, especially from 2429 1.1 christos code only 240000 bytes long. This limit used to be 2430 1.1 christos 250000, but c++ code tends to generate lots of little 2431 1.1 christos functions, and sometimes violated the assumption. */ 2432 1.1 christos do 2433 1.1 christos { 2434 1.1 christos prev = PREV_SEC (tail); 2435 1.1 christos /* Set up this stub group. */ 2436 1.1 christos htab->stub_group[tail->id].link_sec = curr; 2437 1.1 christos } 2438 1.1 christos while (tail != curr && (tail = prev) != NULL); 2439 1.1 christos 2440 1.1 christos /* But wait, there's more! Input sections up to 240000 2441 1.1 christos bytes before the stub section can be handled by it too. 2442 1.1 christos Don't do this if we have a really large section after the 2443 1.1 christos stubs, as adding more stubs increases the chance that 2444 1.1 christos branches may not reach into the stub section. */ 2445 1.1 christos if (!stubs_always_before_branch && !big_sec) 2446 1.1 christos { 2447 1.1 christos total = 0; 2448 1.1 christos while (prev != NULL 2449 1.1 christos && ((total += tail->output_offset - prev->output_offset) 2450 1.1 christos < stub_group_size)) 2451 1.1 christos { 2452 1.1 christos tail = prev; 2453 1.1 christos prev = PREV_SEC (tail); 2454 1.1 christos htab->stub_group[tail->id].link_sec = curr; 2455 1.1 christos } 2456 1.1 christos } 2457 1.1 christos tail = prev; 2458 1.1 christos } 2459 1.1 christos } 2460 1.1 christos while (list-- != htab->input_list); 2461 1.1 christos free (htab->input_list); 2462 1.1 christos #undef PREV_SEC 2463 1.1 christos } 2464 1.1 christos 2465 1.1 christos /* Read in all local syms for all input bfds, and create hash entries 2466 1.1 christos for export stubs if we are building a multi-subspace shared lib. 2467 1.1 christos Returns -1 on error, 1 if export stubs created, 0 otherwise. */ 2468 1.1 christos 2469 1.1 christos static int 2470 1.1 christos get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info) 2471 1.1 christos { 2472 1.1 christos unsigned int bfd_indx; 2473 1.1 christos Elf_Internal_Sym *local_syms, **all_local_syms; 2474 1.1 christos int stub_changed = 0; 2475 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); 2476 1.1 christos 2477 1.1 christos if (htab == NULL) 2478 1.1 christos return -1; 2479 1.1 christos 2480 1.1 christos /* We want to read in symbol extension records only once. To do this 2481 1.1 christos we need to read in the local symbols in parallel and save them for 2482 1.1 christos later use; so hold pointers to the local symbols in an array. */ 2483 1.1.1.8 christos size_t amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count; 2484 1.1 christos all_local_syms = bfd_zmalloc (amt); 2485 1.1 christos htab->all_local_syms = all_local_syms; 2486 1.1 christos if (all_local_syms == NULL) 2487 1.1 christos return -1; 2488 1.1 christos 2489 1.1 christos /* Walk over all the input BFDs, swapping in local symbols. 2490 1.1 christos If we are creating a shared library, create hash entries for the 2491 1.1 christos export stubs. */ 2492 1.1 christos for (bfd_indx = 0; 2493 1.1 christos input_bfd != NULL; 2494 1.1.1.4 christos input_bfd = input_bfd->link.next, bfd_indx++) 2495 1.1 christos { 2496 1.1 christos Elf_Internal_Shdr *symtab_hdr; 2497 1.1 christos 2498 1.1 christos /* We'll need the symbol table in a second. */ 2499 1.1 christos symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; 2500 1.1 christos if (symtab_hdr->sh_info == 0) 2501 1.1 christos continue; 2502 1.1 christos 2503 1.1 christos /* We need an array of the local symbols attached to the input bfd. */ 2504 1.1 christos local_syms = (Elf_Internal_Sym *) symtab_hdr->contents; 2505 1.1 christos if (local_syms == NULL) 2506 1.1 christos { 2507 1.1 christos local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, 2508 1.1 christos symtab_hdr->sh_info, 0, 2509 1.1 christos NULL, NULL, NULL); 2510 1.1 christos /* Cache them for elf_link_input_bfd. */ 2511 1.1 christos symtab_hdr->contents = (unsigned char *) local_syms; 2512 1.1 christos } 2513 1.1 christos if (local_syms == NULL) 2514 1.1 christos return -1; 2515 1.1 christos 2516 1.1 christos all_local_syms[bfd_indx] = local_syms; 2517 1.1 christos 2518 1.1.1.5 christos if (bfd_link_pic (info) && htab->multi_subspace) 2519 1.1 christos { 2520 1.1 christos struct elf_link_hash_entry **eh_syms; 2521 1.1 christos struct elf_link_hash_entry **eh_symend; 2522 1.1 christos unsigned int symcount; 2523 1.1 christos 2524 1.1 christos symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) 2525 1.1 christos - symtab_hdr->sh_info); 2526 1.1 christos eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd); 2527 1.1 christos eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount); 2528 1.1 christos 2529 1.1 christos /* Look through the global syms for functions; We need to 2530 1.1 christos build export stubs for all globally visible functions. */ 2531 1.1 christos for (; eh_syms < eh_symend; eh_syms++) 2532 1.1 christos { 2533 1.1 christos struct elf32_hppa_link_hash_entry *hh; 2534 1.1 christos 2535 1.1 christos hh = hppa_elf_hash_entry (*eh_syms); 2536 1.1 christos 2537 1.1 christos while (hh->eh.root.type == bfd_link_hash_indirect 2538 1.1 christos || hh->eh.root.type == bfd_link_hash_warning) 2539 1.1 christos hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); 2540 1.1 christos 2541 1.1 christos /* At this point in the link, undefined syms have been 2542 1.1 christos resolved, so we need to check that the symbol was 2543 1.1 christos defined in this BFD. */ 2544 1.1 christos if ((hh->eh.root.type == bfd_link_hash_defined 2545 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak) 2546 1.1 christos && hh->eh.type == STT_FUNC 2547 1.1 christos && hh->eh.root.u.def.section->output_section != NULL 2548 1.1 christos && (hh->eh.root.u.def.section->output_section->owner 2549 1.1 christos == output_bfd) 2550 1.1 christos && hh->eh.root.u.def.section->owner == input_bfd 2551 1.1 christos && hh->eh.def_regular 2552 1.1 christos && !hh->eh.forced_local 2553 1.1 christos && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT) 2554 1.1 christos { 2555 1.1 christos asection *sec; 2556 1.1 christos const char *stub_name; 2557 1.1 christos struct elf32_hppa_stub_hash_entry *hsh; 2558 1.1 christos 2559 1.1 christos sec = hh->eh.root.u.def.section; 2560 1.1 christos stub_name = hh_name (hh); 2561 1.1 christos hsh = hppa_stub_hash_lookup (&htab->bstab, 2562 1.1 christos stub_name, 2563 1.1.1.9 christos false, false); 2564 1.1 christos if (hsh == NULL) 2565 1.1 christos { 2566 1.1 christos hsh = hppa_add_stub (stub_name, sec, htab); 2567 1.1 christos if (!hsh) 2568 1.1 christos return -1; 2569 1.1 christos 2570 1.1 christos hsh->target_value = hh->eh.root.u.def.value; 2571 1.1 christos hsh->target_section = hh->eh.root.u.def.section; 2572 1.1 christos hsh->stub_type = hppa_stub_export; 2573 1.1 christos hsh->hh = hh; 2574 1.1 christos stub_changed = 1; 2575 1.1 christos } 2576 1.1 christos else 2577 1.1 christos { 2578 1.1.1.6 christos /* xgettext:c-format */ 2579 1.1.1.7 christos _bfd_error_handler (_("%pB: duplicate export stub %s"), 2580 1.1.1.6 christos input_bfd, stub_name); 2581 1.1 christos } 2582 1.1 christos } 2583 1.1 christos } 2584 1.1 christos } 2585 1.1 christos } 2586 1.1 christos 2587 1.1 christos return stub_changed; 2588 1.1 christos } 2589 1.1 christos 2590 1.1 christos /* Determine and set the size of the stub section for a final link. 2591 1.1 christos 2592 1.1 christos The basic idea here is to examine all the relocations looking for 2593 1.1 christos PC-relative calls to a target that is unreachable with a "bl" 2594 1.1 christos instruction. */ 2595 1.1 christos 2596 1.1.1.9 christos bool 2597 1.1 christos elf32_hppa_size_stubs 2598 1.1 christos (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info, 2599 1.1.1.9 christos bool multi_subspace, bfd_signed_vma group_size, 2600 1.1 christos asection * (*add_stub_section) (const char *, asection *), 2601 1.1 christos void (*layout_sections_again) (void)) 2602 1.1 christos { 2603 1.1 christos bfd_size_type stub_group_size; 2604 1.1.1.9 christos bool stubs_always_before_branch; 2605 1.1.1.9 christos bool stub_changed; 2606 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); 2607 1.1 christos 2608 1.1 christos if (htab == NULL) 2609 1.1.1.9 christos return false; 2610 1.1 christos 2611 1.1 christos /* Stash our params away. */ 2612 1.1 christos htab->stub_bfd = stub_bfd; 2613 1.1 christos htab->multi_subspace = multi_subspace; 2614 1.1 christos htab->add_stub_section = add_stub_section; 2615 1.1 christos htab->layout_sections_again = layout_sections_again; 2616 1.1 christos stubs_always_before_branch = group_size < 0; 2617 1.1 christos if (group_size < 0) 2618 1.1 christos stub_group_size = -group_size; 2619 1.1 christos else 2620 1.1 christos stub_group_size = group_size; 2621 1.1 christos if (stub_group_size == 1) 2622 1.1 christos { 2623 1.1 christos /* Default values. */ 2624 1.1 christos if (stubs_always_before_branch) 2625 1.1 christos { 2626 1.1 christos stub_group_size = 7680000; 2627 1.1 christos if (htab->has_17bit_branch || htab->multi_subspace) 2628 1.1 christos stub_group_size = 240000; 2629 1.1 christos if (htab->has_12bit_branch) 2630 1.1 christos stub_group_size = 7500; 2631 1.1 christos } 2632 1.1 christos else 2633 1.1 christos { 2634 1.1 christos stub_group_size = 6971392; 2635 1.1 christos if (htab->has_17bit_branch || htab->multi_subspace) 2636 1.1 christos stub_group_size = 217856; 2637 1.1 christos if (htab->has_12bit_branch) 2638 1.1 christos stub_group_size = 6808; 2639 1.1 christos } 2640 1.1 christos } 2641 1.1 christos 2642 1.1 christos group_sections (htab, stub_group_size, stubs_always_before_branch); 2643 1.1 christos 2644 1.1 christos switch (get_local_syms (output_bfd, info->input_bfds, info)) 2645 1.1 christos { 2646 1.1 christos default: 2647 1.1 christos if (htab->all_local_syms) 2648 1.1 christos goto error_ret_free_local; 2649 1.1.1.9 christos return false; 2650 1.1 christos 2651 1.1 christos case 0: 2652 1.1.1.9 christos stub_changed = false; 2653 1.1 christos break; 2654 1.1 christos 2655 1.1 christos case 1: 2656 1.1.1.9 christos stub_changed = true; 2657 1.1 christos break; 2658 1.1 christos } 2659 1.1 christos 2660 1.1 christos while (1) 2661 1.1 christos { 2662 1.1 christos bfd *input_bfd; 2663 1.1 christos unsigned int bfd_indx; 2664 1.1 christos asection *stub_sec; 2665 1.1 christos 2666 1.1 christos for (input_bfd = info->input_bfds, bfd_indx = 0; 2667 1.1 christos input_bfd != NULL; 2668 1.1.1.4 christos input_bfd = input_bfd->link.next, bfd_indx++) 2669 1.1 christos { 2670 1.1 christos Elf_Internal_Shdr *symtab_hdr; 2671 1.1 christos asection *section; 2672 1.1 christos Elf_Internal_Sym *local_syms; 2673 1.1 christos 2674 1.1 christos /* We'll need the symbol table in a second. */ 2675 1.1 christos symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; 2676 1.1 christos if (symtab_hdr->sh_info == 0) 2677 1.1 christos continue; 2678 1.1 christos 2679 1.1 christos local_syms = htab->all_local_syms[bfd_indx]; 2680 1.1 christos 2681 1.1 christos /* Walk over each section attached to the input bfd. */ 2682 1.1 christos for (section = input_bfd->sections; 2683 1.1 christos section != NULL; 2684 1.1 christos section = section->next) 2685 1.1 christos { 2686 1.1 christos Elf_Internal_Rela *internal_relocs, *irelaend, *irela; 2687 1.1 christos 2688 1.1 christos /* If there aren't any relocs, then there's nothing more 2689 1.1 christos to do. */ 2690 1.1 christos if ((section->flags & SEC_RELOC) == 0 2691 1.1.1.7 christos || (section->flags & SEC_ALLOC) == 0 2692 1.1.1.7 christos || (section->flags & SEC_LOAD) == 0 2693 1.1.1.7 christos || (section->flags & SEC_CODE) == 0 2694 1.1 christos || section->reloc_count == 0) 2695 1.1 christos continue; 2696 1.1 christos 2697 1.1 christos /* If this section is a link-once section that will be 2698 1.1 christos discarded, then don't create any stubs. */ 2699 1.1 christos if (section->output_section == NULL 2700 1.1 christos || section->output_section->owner != output_bfd) 2701 1.1 christos continue; 2702 1.1 christos 2703 1.1 christos /* Get the relocs. */ 2704 1.1 christos internal_relocs 2705 1.1 christos = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, 2706 1.1 christos info->keep_memory); 2707 1.1 christos if (internal_relocs == NULL) 2708 1.1 christos goto error_ret_free_local; 2709 1.1 christos 2710 1.1 christos /* Now examine each relocation. */ 2711 1.1 christos irela = internal_relocs; 2712 1.1 christos irelaend = irela + section->reloc_count; 2713 1.1 christos for (; irela < irelaend; irela++) 2714 1.1 christos { 2715 1.1 christos unsigned int r_type, r_indx; 2716 1.1 christos enum elf32_hppa_stub_type stub_type; 2717 1.1 christos struct elf32_hppa_stub_hash_entry *hsh; 2718 1.1 christos asection *sym_sec; 2719 1.1 christos bfd_vma sym_value; 2720 1.1 christos bfd_vma destination; 2721 1.1 christos struct elf32_hppa_link_hash_entry *hh; 2722 1.1 christos char *stub_name; 2723 1.1 christos const asection *id_sec; 2724 1.1 christos 2725 1.1 christos r_type = ELF32_R_TYPE (irela->r_info); 2726 1.1 christos r_indx = ELF32_R_SYM (irela->r_info); 2727 1.1 christos 2728 1.1 christos if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) 2729 1.1 christos { 2730 1.1 christos bfd_set_error (bfd_error_bad_value); 2731 1.1 christos error_ret_free_internal: 2732 1.1 christos if (elf_section_data (section)->relocs == NULL) 2733 1.1 christos free (internal_relocs); 2734 1.1 christos goto error_ret_free_local; 2735 1.1 christos } 2736 1.1 christos 2737 1.1 christos /* Only look for stubs on call instructions. */ 2738 1.1 christos if (r_type != (unsigned int) R_PARISC_PCREL12F 2739 1.1 christos && r_type != (unsigned int) R_PARISC_PCREL17F 2740 1.1 christos && r_type != (unsigned int) R_PARISC_PCREL22F) 2741 1.1 christos continue; 2742 1.1 christos 2743 1.1 christos /* Now determine the call target, its name, value, 2744 1.1 christos section. */ 2745 1.1 christos sym_sec = NULL; 2746 1.1 christos sym_value = 0; 2747 1.1.1.7 christos destination = -1; 2748 1.1 christos hh = NULL; 2749 1.1 christos if (r_indx < symtab_hdr->sh_info) 2750 1.1 christos { 2751 1.1 christos /* It's a local symbol. */ 2752 1.1 christos Elf_Internal_Sym *sym; 2753 1.1 christos Elf_Internal_Shdr *hdr; 2754 1.1 christos unsigned int shndx; 2755 1.1 christos 2756 1.1 christos sym = local_syms + r_indx; 2757 1.1 christos if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) 2758 1.1 christos sym_value = sym->st_value; 2759 1.1 christos shndx = sym->st_shndx; 2760 1.1 christos if (shndx < elf_numsections (input_bfd)) 2761 1.1 christos { 2762 1.1 christos hdr = elf_elfsections (input_bfd)[shndx]; 2763 1.1 christos sym_sec = hdr->bfd_section; 2764 1.1 christos destination = (sym_value + irela->r_addend 2765 1.1 christos + sym_sec->output_offset 2766 1.1 christos + sym_sec->output_section->vma); 2767 1.1 christos } 2768 1.1 christos } 2769 1.1 christos else 2770 1.1 christos { 2771 1.1 christos /* It's an external symbol. */ 2772 1.1 christos int e_indx; 2773 1.1 christos 2774 1.1 christos e_indx = r_indx - symtab_hdr->sh_info; 2775 1.1 christos hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]); 2776 1.1 christos 2777 1.1 christos while (hh->eh.root.type == bfd_link_hash_indirect 2778 1.1 christos || hh->eh.root.type == bfd_link_hash_warning) 2779 1.1 christos hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); 2780 1.1 christos 2781 1.1 christos if (hh->eh.root.type == bfd_link_hash_defined 2782 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak) 2783 1.1 christos { 2784 1.1 christos sym_sec = hh->eh.root.u.def.section; 2785 1.1 christos sym_value = hh->eh.root.u.def.value; 2786 1.1 christos if (sym_sec->output_section != NULL) 2787 1.1 christos destination = (sym_value + irela->r_addend 2788 1.1 christos + sym_sec->output_offset 2789 1.1 christos + sym_sec->output_section->vma); 2790 1.1 christos } 2791 1.1 christos else if (hh->eh.root.type == bfd_link_hash_undefweak) 2792 1.1 christos { 2793 1.1.1.5 christos if (! bfd_link_pic (info)) 2794 1.1 christos continue; 2795 1.1 christos } 2796 1.1 christos else if (hh->eh.root.type == bfd_link_hash_undefined) 2797 1.1 christos { 2798 1.1 christos if (! (info->unresolved_syms_in_objects == RM_IGNORE 2799 1.1 christos && (ELF_ST_VISIBILITY (hh->eh.other) 2800 1.1 christos == STV_DEFAULT) 2801 1.1 christos && hh->eh.type != STT_PARISC_MILLI)) 2802 1.1 christos continue; 2803 1.1 christos } 2804 1.1 christos else 2805 1.1 christos { 2806 1.1 christos bfd_set_error (bfd_error_bad_value); 2807 1.1 christos goto error_ret_free_internal; 2808 1.1 christos } 2809 1.1 christos } 2810 1.1 christos 2811 1.1 christos /* Determine what (if any) linker stub is needed. */ 2812 1.1 christos stub_type = hppa_type_of_stub (section, irela, hh, 2813 1.1 christos destination, info); 2814 1.1 christos if (stub_type == hppa_stub_none) 2815 1.1 christos continue; 2816 1.1 christos 2817 1.1 christos /* Support for grouping stub sections. */ 2818 1.1 christos id_sec = htab->stub_group[section->id].link_sec; 2819 1.1 christos 2820 1.1 christos /* Get the name of this stub. */ 2821 1.1 christos stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela); 2822 1.1 christos if (!stub_name) 2823 1.1 christos goto error_ret_free_internal; 2824 1.1 christos 2825 1.1 christos hsh = hppa_stub_hash_lookup (&htab->bstab, 2826 1.1 christos stub_name, 2827 1.1.1.9 christos false, false); 2828 1.1 christos if (hsh != NULL) 2829 1.1 christos { 2830 1.1 christos /* The proper stub has already been created. */ 2831 1.1 christos free (stub_name); 2832 1.1 christos continue; 2833 1.1 christos } 2834 1.1 christos 2835 1.1 christos hsh = hppa_add_stub (stub_name, section, htab); 2836 1.1 christos if (hsh == NULL) 2837 1.1 christos { 2838 1.1 christos free (stub_name); 2839 1.1 christos goto error_ret_free_internal; 2840 1.1 christos } 2841 1.1 christos 2842 1.1 christos hsh->target_value = sym_value; 2843 1.1 christos hsh->target_section = sym_sec; 2844 1.1 christos hsh->stub_type = stub_type; 2845 1.1.1.5 christos if (bfd_link_pic (info)) 2846 1.1 christos { 2847 1.1 christos if (stub_type == hppa_stub_import) 2848 1.1 christos hsh->stub_type = hppa_stub_import_shared; 2849 1.1 christos else if (stub_type == hppa_stub_long_branch) 2850 1.1 christos hsh->stub_type = hppa_stub_long_branch_shared; 2851 1.1 christos } 2852 1.1 christos hsh->hh = hh; 2853 1.1.1.9 christos stub_changed = true; 2854 1.1 christos } 2855 1.1 christos 2856 1.1 christos /* We're done with the internal relocs, free them. */ 2857 1.1 christos if (elf_section_data (section)->relocs == NULL) 2858 1.1 christos free (internal_relocs); 2859 1.1 christos } 2860 1.1 christos } 2861 1.1 christos 2862 1.1 christos if (!stub_changed) 2863 1.1 christos break; 2864 1.1 christos 2865 1.1 christos /* OK, we've added some stubs. Find out the new size of the 2866 1.1 christos stub sections. */ 2867 1.1 christos for (stub_sec = htab->stub_bfd->sections; 2868 1.1 christos stub_sec != NULL; 2869 1.1 christos stub_sec = stub_sec->next) 2870 1.1.1.5 christos if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) 2871 1.1.1.5 christos stub_sec->size = 0; 2872 1.1 christos 2873 1.1 christos bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab); 2874 1.1 christos 2875 1.1 christos /* Ask the linker to do its stuff. */ 2876 1.1 christos (*htab->layout_sections_again) (); 2877 1.1.1.9 christos stub_changed = false; 2878 1.1 christos } 2879 1.1 christos 2880 1.1 christos free (htab->all_local_syms); 2881 1.1.1.9 christos return true; 2882 1.1 christos 2883 1.1 christos error_ret_free_local: 2884 1.1 christos free (htab->all_local_syms); 2885 1.1.1.9 christos return false; 2886 1.1 christos } 2887 1.1 christos 2888 1.1 christos /* For a final link, this function is called after we have sized the 2889 1.1 christos stubs to provide a value for __gp. */ 2890 1.1 christos 2891 1.1.1.9 christos bool 2892 1.1 christos elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info) 2893 1.1 christos { 2894 1.1 christos struct bfd_link_hash_entry *h; 2895 1.1 christos asection *sec = NULL; 2896 1.1 christos bfd_vma gp_val = 0; 2897 1.1 christos 2898 1.1.1.9 christos h = bfd_link_hash_lookup (info->hash, "$global$", false, false, false); 2899 1.1 christos 2900 1.1 christos if (h != NULL 2901 1.1 christos && (h->type == bfd_link_hash_defined 2902 1.1 christos || h->type == bfd_link_hash_defweak)) 2903 1.1 christos { 2904 1.1 christos gp_val = h->u.def.value; 2905 1.1 christos sec = h->u.def.section; 2906 1.1 christos } 2907 1.1 christos else 2908 1.1 christos { 2909 1.1 christos asection *splt = bfd_get_section_by_name (abfd, ".plt"); 2910 1.1 christos asection *sgot = bfd_get_section_by_name (abfd, ".got"); 2911 1.1 christos 2912 1.1 christos /* Choose to point our LTP at, in this order, one of .plt, .got, 2913 1.1 christos or .data, if these sections exist. In the case of choosing 2914 1.1 christos .plt try to make the LTP ideal for addressing anywhere in the 2915 1.1 christos .plt or .got with a 14 bit signed offset. Typically, the end 2916 1.1 christos of the .plt is the start of the .got, so choose .plt + 0x2000 2917 1.1 christos if either the .plt or .got is larger than 0x2000. If both 2918 1.1 christos the .plt and .got are smaller than 0x2000, choose the end of 2919 1.1 christos the .plt section. */ 2920 1.1 christos sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0 2921 1.1 christos ? NULL : splt; 2922 1.1 christos if (sec != NULL) 2923 1.1 christos { 2924 1.1 christos gp_val = sec->size; 2925 1.1 christos if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000)) 2926 1.1 christos { 2927 1.1 christos gp_val = 0x2000; 2928 1.1 christos } 2929 1.1 christos } 2930 1.1 christos else 2931 1.1 christos { 2932 1.1 christos sec = sgot; 2933 1.1 christos if (sec != NULL) 2934 1.1 christos { 2935 1.1 christos if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0) 2936 1.1 christos { 2937 1.1.1.7 christos /* We know we don't have a .plt. If .got is large, 2938 1.1 christos offset our LTP. */ 2939 1.1.1.7 christos if (sec->size > 0x2000) 2940 1.1 christos gp_val = 0x2000; 2941 1.1 christos } 2942 1.1 christos } 2943 1.1 christos else 2944 1.1 christos { 2945 1.1 christos /* No .plt or .got. Who cares what the LTP is? */ 2946 1.1 christos sec = bfd_get_section_by_name (abfd, ".data"); 2947 1.1 christos } 2948 1.1 christos } 2949 1.1 christos 2950 1.1 christos if (h != NULL) 2951 1.1 christos { 2952 1.1 christos h->type = bfd_link_hash_defined; 2953 1.1 christos h->u.def.value = gp_val; 2954 1.1 christos if (sec != NULL) 2955 1.1 christos h->u.def.section = sec; 2956 1.1 christos else 2957 1.1 christos h->u.def.section = bfd_abs_section_ptr; 2958 1.1 christos } 2959 1.1 christos } 2960 1.1 christos 2961 1.1.1.7 christos if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) 2962 1.1.1.7 christos { 2963 1.1.1.7 christos if (sec != NULL && sec->output_section != NULL) 2964 1.1.1.7 christos gp_val += sec->output_section->vma + sec->output_offset; 2965 1.1 christos 2966 1.1.1.7 christos elf_gp (abfd) = gp_val; 2967 1.1.1.7 christos } 2968 1.1.1.9 christos return true; 2969 1.1 christos } 2970 1.1 christos 2971 1.1 christos /* Build all the stubs associated with the current output file. The 2972 1.1 christos stubs are kept in a hash table attached to the main linker hash 2973 1.1 christos table. We also set up the .plt entries for statically linked PIC 2974 1.1 christos functions here. This function is called via hppaelf_finish in the 2975 1.1 christos linker. */ 2976 1.1 christos 2977 1.1.1.9 christos bool 2978 1.1 christos elf32_hppa_build_stubs (struct bfd_link_info *info) 2979 1.1 christos { 2980 1.1 christos asection *stub_sec; 2981 1.1 christos struct bfd_hash_table *table; 2982 1.1 christos struct elf32_hppa_link_hash_table *htab; 2983 1.1 christos 2984 1.1 christos htab = hppa_link_hash_table (info); 2985 1.1 christos if (htab == NULL) 2986 1.1.1.9 christos return false; 2987 1.1 christos 2988 1.1 christos for (stub_sec = htab->stub_bfd->sections; 2989 1.1 christos stub_sec != NULL; 2990 1.1 christos stub_sec = stub_sec->next) 2991 1.1.1.5 christos if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 2992 1.1.1.5 christos && stub_sec->size != 0) 2993 1.1.1.5 christos { 2994 1.1.1.5 christos /* Allocate memory to hold the linker stubs. */ 2995 1.1.1.5 christos stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size); 2996 1.1.1.5 christos if (stub_sec->contents == NULL) 2997 1.1.1.9 christos return false; 2998 1.1.1.12 christos stub_sec->alloced = 1; 2999 1.1.1.5 christos stub_sec->size = 0; 3000 1.1.1.5 christos } 3001 1.1 christos 3002 1.1 christos /* Build the stubs as directed by the stub hash table. */ 3003 1.1 christos table = &htab->bstab; 3004 1.1 christos bfd_hash_traverse (table, hppa_build_one_stub, info); 3005 1.1 christos 3006 1.1.1.9 christos return true; 3007 1.1 christos } 3008 1.1 christos 3009 1.1 christos /* Return the base vma address which should be subtracted from the real 3010 1.1.1.2 christos address when resolving a dtpoff relocation. 3011 1.1 christos This is PT_TLS segment p_vaddr. */ 3012 1.1 christos 3013 1.1 christos static bfd_vma 3014 1.1 christos dtpoff_base (struct bfd_link_info *info) 3015 1.1 christos { 3016 1.1 christos /* If tls_sec is NULL, we should have signalled an error already. */ 3017 1.1 christos if (elf_hash_table (info)->tls_sec == NULL) 3018 1.1 christos return 0; 3019 1.1 christos return elf_hash_table (info)->tls_sec->vma; 3020 1.1 christos } 3021 1.1 christos 3022 1.1 christos /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */ 3023 1.1 christos 3024 1.1 christos static bfd_vma 3025 1.1 christos tpoff (struct bfd_link_info *info, bfd_vma address) 3026 1.1 christos { 3027 1.1 christos struct elf_link_hash_table *htab = elf_hash_table (info); 3028 1.1 christos 3029 1.1 christos /* If tls_sec is NULL, we should have signalled an error already. */ 3030 1.1 christos if (htab->tls_sec == NULL) 3031 1.1 christos return 0; 3032 1.1.1.2 christos /* hppa TLS ABI is variant I and static TLS block start just after 3033 1.1 christos tcbhead structure which has 2 pointer fields. */ 3034 1.1.1.2 christos return (address - htab->tls_sec->vma 3035 1.1 christos + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power)); 3036 1.1 christos } 3037 1.1 christos 3038 1.1 christos /* Perform a final link. */ 3039 1.1 christos 3040 1.1.1.9 christos static bool 3041 1.1 christos elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info) 3042 1.1 christos { 3043 1.1.1.5 christos struct stat buf; 3044 1.1.1.5 christos 3045 1.1 christos /* Invoke the regular ELF linker to do all the work. */ 3046 1.1 christos if (!bfd_elf_final_link (abfd, info)) 3047 1.1.1.9 christos return false; 3048 1.1 christos 3049 1.1 christos /* If we're producing a final executable, sort the contents of the 3050 1.1 christos unwind section. */ 3051 1.1.1.5 christos if (bfd_link_relocatable (info)) 3052 1.1.1.9 christos return true; 3053 1.1.1.5 christos 3054 1.1.1.5 christos /* Do not attempt to sort non-regular files. This is here 3055 1.1.1.5 christos especially for configure scripts and kernel builds which run 3056 1.1.1.5 christos tests with "ld [...] -o /dev/null". */ 3057 1.1.1.8 christos if (stat (bfd_get_filename (abfd), &buf) != 0 3058 1.1.1.5 christos || !S_ISREG(buf.st_mode)) 3059 1.1.1.9 christos return true; 3060 1.1 christos 3061 1.1 christos return elf_hppa_sort_unwind (abfd); 3062 1.1 christos } 3063 1.1 christos 3064 1.1 christos /* Record the lowest address for the data and text segments. */ 3065 1.1 christos 3066 1.1 christos static void 3067 1.1 christos hppa_record_segment_addr (bfd *abfd, asection *section, void *data) 3068 1.1 christos { 3069 1.1 christos struct elf32_hppa_link_hash_table *htab; 3070 1.1 christos 3071 1.1 christos htab = (struct elf32_hppa_link_hash_table*) data; 3072 1.1 christos if (htab == NULL) 3073 1.1 christos return; 3074 1.1 christos 3075 1.1 christos if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) 3076 1.1 christos { 3077 1.1 christos bfd_vma value; 3078 1.1 christos Elf_Internal_Phdr *p; 3079 1.1 christos 3080 1.1 christos p = _bfd_elf_find_segment_containing_section (abfd, section->output_section); 3081 1.1 christos BFD_ASSERT (p != NULL); 3082 1.1 christos value = p->p_vaddr; 3083 1.1 christos 3084 1.1 christos if ((section->flags & SEC_READONLY) != 0) 3085 1.1 christos { 3086 1.1 christos if (value < htab->text_segment_base) 3087 1.1 christos htab->text_segment_base = value; 3088 1.1 christos } 3089 1.1 christos else 3090 1.1 christos { 3091 1.1 christos if (value < htab->data_segment_base) 3092 1.1 christos htab->data_segment_base = value; 3093 1.1 christos } 3094 1.1 christos } 3095 1.1 christos } 3096 1.1 christos 3097 1.1 christos /* Perform a relocation as part of a final link. */ 3098 1.1 christos 3099 1.1 christos static bfd_reloc_status_type 3100 1.1 christos final_link_relocate (asection *input_section, 3101 1.1 christos bfd_byte *contents, 3102 1.1 christos const Elf_Internal_Rela *rela, 3103 1.1 christos bfd_vma value, 3104 1.1 christos struct elf32_hppa_link_hash_table *htab, 3105 1.1 christos asection *sym_sec, 3106 1.1 christos struct elf32_hppa_link_hash_entry *hh, 3107 1.1 christos struct bfd_link_info *info) 3108 1.1 christos { 3109 1.1.1.8 christos unsigned int insn; 3110 1.1 christos unsigned int r_type = ELF32_R_TYPE (rela->r_info); 3111 1.1 christos unsigned int orig_r_type = r_type; 3112 1.1 christos reloc_howto_type *howto = elf_hppa_howto_table + r_type; 3113 1.1.1.10 christos int r_format; 3114 1.1 christos enum hppa_reloc_field_selector_type_alt r_field; 3115 1.1 christos bfd *input_bfd = input_section->owner; 3116 1.1 christos bfd_vma offset = rela->r_offset; 3117 1.1 christos bfd_vma max_branch_offset = 0; 3118 1.1 christos bfd_byte *hit_data = contents + offset; 3119 1.1 christos bfd_signed_vma addend = rela->r_addend; 3120 1.1 christos bfd_vma location; 3121 1.1 christos struct elf32_hppa_stub_hash_entry *hsh = NULL; 3122 1.1.1.2 christos int val; 3123 1.1 christos 3124 1.1 christos if (r_type == R_PARISC_NONE) 3125 1.1 christos return bfd_reloc_ok; 3126 1.1 christos 3127 1.1 christos insn = bfd_get_32 (input_bfd, hit_data); 3128 1.1 christos 3129 1.1 christos /* Find out where we are and where we're going. */ 3130 1.1 christos location = (offset + 3131 1.1 christos input_section->output_offset + 3132 1.1 christos input_section->output_section->vma); 3133 1.1 christos 3134 1.1 christos /* If we are not building a shared library, convert DLTIND relocs to 3135 1.1 christos DPREL relocs. */ 3136 1.1.1.5 christos if (!bfd_link_pic (info)) 3137 1.1 christos { 3138 1.1 christos switch (r_type) 3139 1.1 christos { 3140 1.1 christos case R_PARISC_DLTIND21L: 3141 1.1.1.2 christos case R_PARISC_TLS_GD21L: 3142 1.1.1.2 christos case R_PARISC_TLS_LDM21L: 3143 1.1.1.2 christos case R_PARISC_TLS_IE21L: 3144 1.1 christos r_type = R_PARISC_DPREL21L; 3145 1.1 christos break; 3146 1.1 christos 3147 1.1 christos case R_PARISC_DLTIND14R: 3148 1.1.1.2 christos case R_PARISC_TLS_GD14R: 3149 1.1.1.2 christos case R_PARISC_TLS_LDM14R: 3150 1.1.1.2 christos case R_PARISC_TLS_IE14R: 3151 1.1 christos r_type = R_PARISC_DPREL14R; 3152 1.1 christos break; 3153 1.1 christos 3154 1.1 christos case R_PARISC_DLTIND14F: 3155 1.1 christos r_type = R_PARISC_DPREL14F; 3156 1.1 christos break; 3157 1.1 christos } 3158 1.1 christos } 3159 1.1 christos 3160 1.1 christos switch (r_type) 3161 1.1 christos { 3162 1.1 christos case R_PARISC_PCREL12F: 3163 1.1 christos case R_PARISC_PCREL17F: 3164 1.1 christos case R_PARISC_PCREL22F: 3165 1.1 christos /* If this call should go via the plt, find the import stub in 3166 1.1 christos the stub hash. */ 3167 1.1 christos if (sym_sec == NULL 3168 1.1 christos || sym_sec->output_section == NULL 3169 1.1 christos || (hh != NULL 3170 1.1 christos && hh->eh.plt.offset != (bfd_vma) -1 3171 1.1 christos && hh->eh.dynindx != -1 3172 1.1 christos && !hh->plabel 3173 1.1.1.5 christos && (bfd_link_pic (info) 3174 1.1 christos || !hh->eh.def_regular 3175 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak))) 3176 1.1 christos { 3177 1.1 christos hsh = hppa_get_stub_entry (input_section, sym_sec, 3178 1.1.1.7 christos hh, rela, htab); 3179 1.1 christos if (hsh != NULL) 3180 1.1 christos { 3181 1.1 christos value = (hsh->stub_offset 3182 1.1 christos + hsh->stub_sec->output_offset 3183 1.1 christos + hsh->stub_sec->output_section->vma); 3184 1.1 christos addend = 0; 3185 1.1 christos } 3186 1.1 christos else if (sym_sec == NULL && hh != NULL 3187 1.1 christos && hh->eh.root.type == bfd_link_hash_undefweak) 3188 1.1 christos { 3189 1.1 christos /* It's OK if undefined weak. Calls to undefined weak 3190 1.1 christos symbols behave as if the "called" function 3191 1.1 christos immediately returns. We can thus call to a weak 3192 1.1 christos function without first checking whether the function 3193 1.1 christos is defined. */ 3194 1.1 christos value = location; 3195 1.1 christos addend = 8; 3196 1.1 christos } 3197 1.1 christos else 3198 1.1 christos return bfd_reloc_undefined; 3199 1.1 christos } 3200 1.1 christos /* Fall thru. */ 3201 1.1 christos 3202 1.1 christos case R_PARISC_PCREL21L: 3203 1.1 christos case R_PARISC_PCREL17C: 3204 1.1 christos case R_PARISC_PCREL17R: 3205 1.1 christos case R_PARISC_PCREL14R: 3206 1.1 christos case R_PARISC_PCREL14F: 3207 1.1 christos case R_PARISC_PCREL32: 3208 1.1 christos /* Make it a pc relative offset. */ 3209 1.1 christos value -= location; 3210 1.1 christos addend -= 8; 3211 1.1 christos break; 3212 1.1 christos 3213 1.1 christos case R_PARISC_DPREL21L: 3214 1.1 christos case R_PARISC_DPREL14R: 3215 1.1 christos case R_PARISC_DPREL14F: 3216 1.1 christos /* Convert instructions that use the linkage table pointer (r19) to 3217 1.1 christos instructions that use the global data pointer (dp). This is the 3218 1.1 christos most efficient way of using PIC code in an incomplete executable, 3219 1.1 christos but the user must follow the standard runtime conventions for 3220 1.1 christos accessing data for this to work. */ 3221 1.1.1.2 christos if (orig_r_type != r_type) 3222 1.1.1.2 christos { 3223 1.1.1.2 christos if (r_type == R_PARISC_DPREL21L) 3224 1.1.1.2 christos { 3225 1.1.1.2 christos /* GCC sometimes uses a register other than r19 for the 3226 1.1.1.2 christos operation, so we must convert any addil instruction 3227 1.1.1.2 christos that uses this relocation. */ 3228 1.1.1.8 christos if ((insn & 0xfc000000) == OP_ADDIL << 26) 3229 1.1.1.2 christos insn = ADDIL_DP; 3230 1.1.1.2 christos else 3231 1.1.1.2 christos /* We must have a ldil instruction. It's too hard to find 3232 1.1.1.2 christos and convert the associated add instruction, so issue an 3233 1.1.1.2 christos error. */ 3234 1.1.1.6 christos _bfd_error_handler 3235 1.1.1.6 christos /* xgettext:c-format */ 3236 1.1.1.7 christos (_("%pB(%pA+%#" PRIx64 "): %s fixup for insn %#x " 3237 1.1.1.7 christos "is not supported in a non-shared link"), 3238 1.1.1.2 christos input_bfd, 3239 1.1.1.2 christos input_section, 3240 1.1.1.7 christos (uint64_t) offset, 3241 1.1.1.2 christos howto->name, 3242 1.1.1.2 christos insn); 3243 1.1.1.2 christos } 3244 1.1.1.2 christos else if (r_type == R_PARISC_DPREL14F) 3245 1.1.1.2 christos { 3246 1.1.1.2 christos /* This must be a format 1 load/store. Change the base 3247 1.1.1.2 christos register to dp. */ 3248 1.1.1.2 christos insn = (insn & 0xfc1ffff) | (27 << 21); 3249 1.1.1.2 christos } 3250 1.1.1.2 christos } 3251 1.1.1.2 christos 3252 1.1.1.2 christos /* For all the DP relative relocations, we need to examine the symbol's 3253 1.1.1.2 christos section. If it has no section or if it's a code section, then 3254 1.1.1.2 christos "data pointer relative" makes no sense. In that case we don't 3255 1.1.1.2 christos adjust the "value", and for 21 bit addil instructions, we change the 3256 1.1.1.2 christos source addend register from %dp to %r0. This situation commonly 3257 1.1.1.2 christos arises for undefined weak symbols and when a variable's "constness" 3258 1.1.1.2 christos is declared differently from the way the variable is defined. For 3259 1.1.1.2 christos instance: "extern int foo" with foo defined as "const int foo". */ 3260 1.1 christos if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0) 3261 1.1 christos { 3262 1.1.1.8 christos if ((insn & ((0x3fu << 26) | (0x1f << 21))) 3263 1.1.1.8 christos == ((OP_ADDIL << 26) | (27 << 21))) 3264 1.1 christos { 3265 1.1 christos insn &= ~ (0x1f << 21); 3266 1.1 christos } 3267 1.1 christos /* Now try to make things easy for the dynamic linker. */ 3268 1.1 christos 3269 1.1 christos break; 3270 1.1 christos } 3271 1.1 christos /* Fall thru. */ 3272 1.1 christos 3273 1.1 christos case R_PARISC_DLTIND21L: 3274 1.1 christos case R_PARISC_DLTIND14R: 3275 1.1 christos case R_PARISC_DLTIND14F: 3276 1.1.1.2 christos case R_PARISC_TLS_GD21L: 3277 1.1.1.2 christos case R_PARISC_TLS_LDM21L: 3278 1.1.1.2 christos case R_PARISC_TLS_IE21L: 3279 1.1 christos case R_PARISC_TLS_GD14R: 3280 1.1 christos case R_PARISC_TLS_LDM14R: 3281 1.1 christos case R_PARISC_TLS_IE14R: 3282 1.1 christos value -= elf_gp (input_section->output_section->owner); 3283 1.1 christos break; 3284 1.1 christos 3285 1.1 christos case R_PARISC_SEGREL32: 3286 1.1 christos if ((sym_sec->flags & SEC_CODE) != 0) 3287 1.1 christos value -= htab->text_segment_base; 3288 1.1 christos else 3289 1.1 christos value -= htab->data_segment_base; 3290 1.1 christos break; 3291 1.1 christos 3292 1.1 christos default: 3293 1.1 christos break; 3294 1.1 christos } 3295 1.1 christos 3296 1.1 christos switch (r_type) 3297 1.1 christos { 3298 1.1 christos case R_PARISC_DIR32: 3299 1.1 christos case R_PARISC_DIR14F: 3300 1.1 christos case R_PARISC_DIR17F: 3301 1.1 christos case R_PARISC_PCREL17C: 3302 1.1 christos case R_PARISC_PCREL14F: 3303 1.1 christos case R_PARISC_PCREL32: 3304 1.1 christos case R_PARISC_DPREL14F: 3305 1.1 christos case R_PARISC_PLABEL32: 3306 1.1 christos case R_PARISC_DLTIND14F: 3307 1.1 christos case R_PARISC_SEGBASE: 3308 1.1 christos case R_PARISC_SEGREL32: 3309 1.1 christos case R_PARISC_TLS_DTPMOD32: 3310 1.1 christos case R_PARISC_TLS_DTPOFF32: 3311 1.1 christos case R_PARISC_TLS_TPREL32: 3312 1.1 christos r_field = e_fsel; 3313 1.1 christos break; 3314 1.1 christos 3315 1.1 christos case R_PARISC_DLTIND21L: 3316 1.1 christos case R_PARISC_PCREL21L: 3317 1.1 christos case R_PARISC_PLABEL21L: 3318 1.1 christos r_field = e_lsel; 3319 1.1 christos break; 3320 1.1 christos 3321 1.1 christos case R_PARISC_DIR21L: 3322 1.1 christos case R_PARISC_DPREL21L: 3323 1.1 christos case R_PARISC_TLS_GD21L: 3324 1.1 christos case R_PARISC_TLS_LDM21L: 3325 1.1 christos case R_PARISC_TLS_LDO21L: 3326 1.1 christos case R_PARISC_TLS_IE21L: 3327 1.1 christos case R_PARISC_TLS_LE21L: 3328 1.1 christos r_field = e_lrsel; 3329 1.1 christos break; 3330 1.1 christos 3331 1.1 christos case R_PARISC_PCREL17R: 3332 1.1 christos case R_PARISC_PCREL14R: 3333 1.1 christos case R_PARISC_PLABEL14R: 3334 1.1 christos case R_PARISC_DLTIND14R: 3335 1.1 christos r_field = e_rsel; 3336 1.1 christos break; 3337 1.1 christos 3338 1.1 christos case R_PARISC_DIR17R: 3339 1.1 christos case R_PARISC_DIR14R: 3340 1.1 christos case R_PARISC_DPREL14R: 3341 1.1 christos case R_PARISC_TLS_GD14R: 3342 1.1 christos case R_PARISC_TLS_LDM14R: 3343 1.1 christos case R_PARISC_TLS_LDO14R: 3344 1.1 christos case R_PARISC_TLS_IE14R: 3345 1.1 christos case R_PARISC_TLS_LE14R: 3346 1.1 christos r_field = e_rrsel; 3347 1.1 christos break; 3348 1.1 christos 3349 1.1 christos case R_PARISC_PCREL12F: 3350 1.1 christos case R_PARISC_PCREL17F: 3351 1.1 christos case R_PARISC_PCREL22F: 3352 1.1 christos r_field = e_fsel; 3353 1.1 christos 3354 1.1 christos if (r_type == (unsigned int) R_PARISC_PCREL17F) 3355 1.1 christos { 3356 1.1 christos max_branch_offset = (1 << (17-1)) << 2; 3357 1.1 christos } 3358 1.1 christos else if (r_type == (unsigned int) R_PARISC_PCREL12F) 3359 1.1 christos { 3360 1.1 christos max_branch_offset = (1 << (12-1)) << 2; 3361 1.1 christos } 3362 1.1 christos else 3363 1.1 christos { 3364 1.1 christos max_branch_offset = (1 << (22-1)) << 2; 3365 1.1 christos } 3366 1.1 christos 3367 1.1 christos /* sym_sec is NULL on undefined weak syms or when shared on 3368 1.1 christos undefined syms. We've already checked for a stub for the 3369 1.1 christos shared undefined case. */ 3370 1.1 christos if (sym_sec == NULL) 3371 1.1 christos break; 3372 1.1 christos 3373 1.1 christos /* If the branch is out of reach, then redirect the 3374 1.1 christos call to the local stub for this function. */ 3375 1.1 christos if (value + addend + max_branch_offset >= 2*max_branch_offset) 3376 1.1 christos { 3377 1.1 christos hsh = hppa_get_stub_entry (input_section, sym_sec, 3378 1.1.1.7 christos hh, rela, htab); 3379 1.1 christos if (hsh == NULL) 3380 1.1 christos return bfd_reloc_undefined; 3381 1.1 christos 3382 1.1 christos /* Munge up the value and addend so that we call the stub 3383 1.1 christos rather than the procedure directly. */ 3384 1.1 christos value = (hsh->stub_offset 3385 1.1 christos + hsh->stub_sec->output_offset 3386 1.1 christos + hsh->stub_sec->output_section->vma 3387 1.1 christos - location); 3388 1.1 christos addend = -8; 3389 1.1 christos } 3390 1.1 christos break; 3391 1.1 christos 3392 1.1 christos /* Something we don't know how to handle. */ 3393 1.1 christos default: 3394 1.1 christos return bfd_reloc_notsupported; 3395 1.1 christos } 3396 1.1 christos 3397 1.1 christos /* Make sure we can reach the stub. */ 3398 1.1 christos if (max_branch_offset != 0 3399 1.1 christos && value + addend + max_branch_offset >= 2*max_branch_offset) 3400 1.1 christos { 3401 1.1.1.6 christos _bfd_error_handler 3402 1.1.1.6 christos /* xgettext:c-format */ 3403 1.1.1.7 christos (_("%pB(%pA+%#" PRIx64 "): cannot reach %s, " 3404 1.1.1.7 christos "recompile with -ffunction-sections"), 3405 1.1 christos input_bfd, 3406 1.1 christos input_section, 3407 1.1.1.7 christos (uint64_t) offset, 3408 1.1 christos hsh->bh_root.string); 3409 1.1 christos bfd_set_error (bfd_error_bad_value); 3410 1.1 christos return bfd_reloc_notsupported; 3411 1.1 christos } 3412 1.1 christos 3413 1.1 christos val = hppa_field_adjust (value, addend, r_field); 3414 1.1 christos 3415 1.1 christos switch (r_type) 3416 1.1 christos { 3417 1.1 christos case R_PARISC_PCREL12F: 3418 1.1 christos case R_PARISC_PCREL17C: 3419 1.1 christos case R_PARISC_PCREL17F: 3420 1.1 christos case R_PARISC_PCREL17R: 3421 1.1 christos case R_PARISC_PCREL22F: 3422 1.1 christos case R_PARISC_DIR17F: 3423 1.1 christos case R_PARISC_DIR17R: 3424 1.1 christos /* This is a branch. Divide the offset by four. 3425 1.1 christos Note that we need to decide whether it's a branch or 3426 1.1 christos otherwise by inspecting the reloc. Inspecting insn won't 3427 1.1 christos work as insn might be from a .word directive. */ 3428 1.1 christos val >>= 2; 3429 1.1 christos break; 3430 1.1 christos 3431 1.1 christos default: 3432 1.1 christos break; 3433 1.1 christos } 3434 1.1 christos 3435 1.1.1.11 christos switch (r_type) 3436 1.1.1.10 christos { 3437 1.1.1.11 christos case R_PARISC_DIR32: 3438 1.1.1.11 christos case R_PARISC_SECREL32: 3439 1.1.1.11 christos case R_PARISC_SEGBASE: 3440 1.1.1.11 christos case R_PARISC_SEGREL32: 3441 1.1.1.11 christos case R_PARISC_PLABEL32: 3442 1.1.1.11 christos /* These relocations apply to data. */ 3443 1.1.1.11 christos r_format = howto->bitsize; 3444 1.1.1.10 christos break; 3445 1.1.1.10 christos 3446 1.1.1.11 christos default: 3447 1.1.1.11 christos r_format = bfd_hppa_insn2fmt (input_bfd, insn); 3448 1.1.1.11 christos switch (r_format) 3449 1.1.1.10 christos { 3450 1.1.1.11 christos case 10: 3451 1.1.1.11 christos case -10: 3452 1.1.1.11 christos if (val & 7) 3453 1.1.1.11 christos { 3454 1.1.1.11 christos _bfd_error_handler 3455 1.1.1.11 christos /* xgettext:c-format */ 3456 1.1.1.11 christos (_("%pB(%pA+%#" PRIx64 "): displacement %#x for insn %#x " 3457 1.1.1.11 christos "is not a multiple of 8 (gp %#x)"), 3458 1.1.1.11 christos input_bfd, 3459 1.1.1.11 christos input_section, 3460 1.1.1.11 christos (uint64_t) offset, 3461 1.1.1.11 christos val, 3462 1.1.1.11 christos insn, 3463 1.1.1.11 christos (unsigned int) elf_gp (input_section->output_section->owner)); 3464 1.1.1.11 christos bfd_set_error (bfd_error_bad_value); 3465 1.1.1.11 christos return bfd_reloc_notsupported; 3466 1.1.1.11 christos } 3467 1.1.1.11 christos break; 3468 1.1.1.10 christos 3469 1.1.1.11 christos case -11: 3470 1.1.1.11 christos case -16: 3471 1.1.1.11 christos if (val & 3) 3472 1.1.1.11 christos { 3473 1.1.1.11 christos _bfd_error_handler 3474 1.1.1.11 christos /* xgettext:c-format */ 3475 1.1.1.11 christos (_("%pB(%pA+%#" PRIx64 "): displacement %#x for insn %#x " 3476 1.1.1.11 christos "is not a multiple of 4 (gp %#x)"), 3477 1.1.1.11 christos input_bfd, 3478 1.1.1.11 christos input_section, 3479 1.1.1.11 christos (uint64_t) offset, 3480 1.1.1.11 christos val, 3481 1.1.1.11 christos insn, 3482 1.1.1.11 christos (unsigned int) elf_gp (input_section->output_section->owner)); 3483 1.1.1.11 christos bfd_set_error (bfd_error_bad_value); 3484 1.1.1.11 christos return bfd_reloc_notsupported; 3485 1.1.1.11 christos } 3486 1.1.1.11 christos break; 3487 1.1.1.11 christos 3488 1.1.1.11 christos default: 3489 1.1.1.11 christos break; 3490 1.1.1.11 christos } 3491 1.1.1.10 christos break; 3492 1.1.1.10 christos } 3493 1.1 christos insn = hppa_rebuild_insn (insn, val, r_format); 3494 1.1 christos 3495 1.1 christos /* Update the instruction word. */ 3496 1.1 christos bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); 3497 1.1 christos return bfd_reloc_ok; 3498 1.1 christos } 3499 1.1 christos 3500 1.1 christos /* Relocate an HPPA ELF section. */ 3501 1.1 christos 3502 1.1.1.9 christos static int 3503 1.1 christos elf32_hppa_relocate_section (bfd *output_bfd, 3504 1.1 christos struct bfd_link_info *info, 3505 1.1 christos bfd *input_bfd, 3506 1.1 christos asection *input_section, 3507 1.1 christos bfd_byte *contents, 3508 1.1 christos Elf_Internal_Rela *relocs, 3509 1.1 christos Elf_Internal_Sym *local_syms, 3510 1.1 christos asection **local_sections) 3511 1.1 christos { 3512 1.1 christos bfd_vma *local_got_offsets; 3513 1.1 christos struct elf32_hppa_link_hash_table *htab; 3514 1.1 christos Elf_Internal_Shdr *symtab_hdr; 3515 1.1 christos Elf_Internal_Rela *rela; 3516 1.1 christos Elf_Internal_Rela *relend; 3517 1.1 christos 3518 1.1 christos symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; 3519 1.1 christos 3520 1.1 christos htab = hppa_link_hash_table (info); 3521 1.1 christos if (htab == NULL) 3522 1.1.1.9 christos return false; 3523 1.1 christos 3524 1.1 christos local_got_offsets = elf_local_got_offsets (input_bfd); 3525 1.1 christos 3526 1.1 christos rela = relocs; 3527 1.1 christos relend = relocs + input_section->reloc_count; 3528 1.1 christos for (; rela < relend; rela++) 3529 1.1 christos { 3530 1.1 christos unsigned int r_type; 3531 1.1 christos reloc_howto_type *howto; 3532 1.1 christos unsigned int r_symndx; 3533 1.1 christos struct elf32_hppa_link_hash_entry *hh; 3534 1.1 christos Elf_Internal_Sym *sym; 3535 1.1 christos asection *sym_sec; 3536 1.1 christos bfd_vma relocation; 3537 1.1 christos bfd_reloc_status_type rstatus; 3538 1.1 christos const char *sym_name; 3539 1.1.1.9 christos bool plabel; 3540 1.1.1.9 christos bool warned_undef; 3541 1.1 christos 3542 1.1 christos r_type = ELF32_R_TYPE (rela->r_info); 3543 1.1 christos if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) 3544 1.1 christos { 3545 1.1 christos bfd_set_error (bfd_error_bad_value); 3546 1.1.1.9 christos return false; 3547 1.1 christos } 3548 1.1 christos if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY 3549 1.1 christos || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) 3550 1.1 christos continue; 3551 1.1 christos 3552 1.1 christos r_symndx = ELF32_R_SYM (rela->r_info); 3553 1.1 christos hh = NULL; 3554 1.1 christos sym = NULL; 3555 1.1 christos sym_sec = NULL; 3556 1.1.1.9 christos warned_undef = false; 3557 1.1 christos if (r_symndx < symtab_hdr->sh_info) 3558 1.1 christos { 3559 1.1 christos /* This is a local symbol, h defaults to NULL. */ 3560 1.1 christos sym = local_syms + r_symndx; 3561 1.1 christos sym_sec = local_sections[r_symndx]; 3562 1.1 christos relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela); 3563 1.1 christos } 3564 1.1 christos else 3565 1.1 christos { 3566 1.1 christos struct elf_link_hash_entry *eh; 3567 1.1.1.9 christos bool unresolved_reloc, ignored; 3568 1.1 christos struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); 3569 1.1 christos 3570 1.1 christos RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela, 3571 1.1 christos r_symndx, symtab_hdr, sym_hashes, 3572 1.1 christos eh, sym_sec, relocation, 3573 1.1.1.3 christos unresolved_reloc, warned_undef, 3574 1.1.1.3 christos ignored); 3575 1.1 christos 3576 1.1.1.5 christos if (!bfd_link_relocatable (info) 3577 1.1 christos && relocation == 0 3578 1.1 christos && eh->root.type != bfd_link_hash_defined 3579 1.1 christos && eh->root.type != bfd_link_hash_defweak 3580 1.1 christos && eh->root.type != bfd_link_hash_undefweak) 3581 1.1 christos { 3582 1.1 christos if (info->unresolved_syms_in_objects == RM_IGNORE 3583 1.1 christos && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT 3584 1.1 christos && eh->type == STT_PARISC_MILLI) 3585 1.1 christos { 3586 1.1.1.5 christos (*info->callbacks->undefined_symbol) 3587 1.1.1.5 christos (info, eh_name (eh), input_bfd, 3588 1.1.1.9 christos input_section, rela->r_offset, false); 3589 1.1.1.9 christos warned_undef = true; 3590 1.1 christos } 3591 1.1 christos } 3592 1.1 christos hh = hppa_elf_hash_entry (eh); 3593 1.1 christos } 3594 1.1 christos 3595 1.1.1.2 christos if (sym_sec != NULL && discarded_section (sym_sec)) 3596 1.1 christos RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, 3597 1.1.1.12 christos rela, 1, relend, R_PARISC_NONE, 3598 1.1.1.2 christos elf_hppa_howto_table + r_type, 0, 3599 1.1 christos contents); 3600 1.1 christos 3601 1.1.1.5 christos if (bfd_link_relocatable (info)) 3602 1.1 christos continue; 3603 1.1 christos 3604 1.1 christos /* Do any required modifications to the relocation value, and 3605 1.1 christos determine what types of dynamic info we need to output, if 3606 1.1 christos any. */ 3607 1.1 christos plabel = 0; 3608 1.1 christos switch (r_type) 3609 1.1 christos { 3610 1.1 christos case R_PARISC_DLTIND14F: 3611 1.1 christos case R_PARISC_DLTIND14R: 3612 1.1 christos case R_PARISC_DLTIND21L: 3613 1.1 christos { 3614 1.1 christos bfd_vma off; 3615 1.1.1.9 christos bool do_got = false; 3616 1.1.1.9 christos bool reloc = bfd_link_pic (info); 3617 1.1 christos 3618 1.1 christos /* Relocation is to the entry for this symbol in the 3619 1.1 christos global offset table. */ 3620 1.1 christos if (hh != NULL) 3621 1.1 christos { 3622 1.1.1.9 christos bool dyn; 3623 1.1 christos 3624 1.1 christos off = hh->eh.got.offset; 3625 1.1 christos dyn = htab->etab.dynamic_sections_created; 3626 1.1.1.7 christos reloc = (!UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh) 3627 1.1.1.7 christos && (reloc 3628 1.1.1.7 christos || (hh->eh.dynindx != -1 3629 1.1.1.7 christos && !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))); 3630 1.1.1.7 christos if (!reloc 3631 1.1.1.7 christos || !WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 3632 1.1.1.7 christos bfd_link_pic (info), 3633 1.1.1.7 christos &hh->eh)) 3634 1.1 christos { 3635 1.1 christos /* If we aren't going to call finish_dynamic_symbol, 3636 1.1 christos then we need to handle initialisation of the .got 3637 1.1 christos entry and create needed relocs here. Since the 3638 1.1 christos offset must always be a multiple of 4, we use the 3639 1.1 christos least significant bit to record whether we have 3640 1.1 christos initialised it already. */ 3641 1.1 christos if ((off & 1) != 0) 3642 1.1 christos off &= ~1; 3643 1.1 christos else 3644 1.1 christos { 3645 1.1 christos hh->eh.got.offset |= 1; 3646 1.1.1.9 christos do_got = true; 3647 1.1 christos } 3648 1.1 christos } 3649 1.1 christos } 3650 1.1 christos else 3651 1.1 christos { 3652 1.1 christos /* Local symbol case. */ 3653 1.1 christos if (local_got_offsets == NULL) 3654 1.1 christos abort (); 3655 1.1 christos 3656 1.1 christos off = local_got_offsets[r_symndx]; 3657 1.1 christos 3658 1.1 christos /* The offset must always be a multiple of 4. We use 3659 1.1 christos the least significant bit to record whether we have 3660 1.1 christos already generated the necessary reloc. */ 3661 1.1 christos if ((off & 1) != 0) 3662 1.1 christos off &= ~1; 3663 1.1 christos else 3664 1.1 christos { 3665 1.1 christos local_got_offsets[r_symndx] |= 1; 3666 1.1.1.9 christos do_got = true; 3667 1.1 christos } 3668 1.1 christos } 3669 1.1 christos 3670 1.1 christos if (do_got) 3671 1.1 christos { 3672 1.1.1.7 christos if (reloc) 3673 1.1 christos { 3674 1.1 christos /* Output a dynamic relocation for this GOT entry. 3675 1.1 christos In this case it is relative to the base of the 3676 1.1 christos object because the symbol index is zero. */ 3677 1.1 christos Elf_Internal_Rela outrel; 3678 1.1 christos bfd_byte *loc; 3679 1.1.1.6 christos asection *sec = htab->etab.srelgot; 3680 1.1 christos 3681 1.1 christos outrel.r_offset = (off 3682 1.1.1.6 christos + htab->etab.sgot->output_offset 3683 1.1.1.6 christos + htab->etab.sgot->output_section->vma); 3684 1.1 christos outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); 3685 1.1 christos outrel.r_addend = relocation; 3686 1.1 christos loc = sec->contents; 3687 1.1 christos loc += sec->reloc_count++ * sizeof (Elf32_External_Rela); 3688 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); 3689 1.1 christos } 3690 1.1 christos else 3691 1.1 christos bfd_put_32 (output_bfd, relocation, 3692 1.1.1.6 christos htab->etab.sgot->contents + off); 3693 1.1 christos } 3694 1.1 christos 3695 1.1 christos if (off >= (bfd_vma) -2) 3696 1.1 christos abort (); 3697 1.1 christos 3698 1.1 christos /* Add the base of the GOT to the relocation value. */ 3699 1.1 christos relocation = (off 3700 1.1.1.6 christos + htab->etab.sgot->output_offset 3701 1.1.1.6 christos + htab->etab.sgot->output_section->vma); 3702 1.1 christos } 3703 1.1 christos break; 3704 1.1 christos 3705 1.1 christos case R_PARISC_SEGREL32: 3706 1.1 christos /* If this is the first SEGREL relocation, then initialize 3707 1.1 christos the segment base values. */ 3708 1.1 christos if (htab->text_segment_base == (bfd_vma) -1) 3709 1.1 christos bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab); 3710 1.1 christos break; 3711 1.1 christos 3712 1.1 christos case R_PARISC_PLABEL14R: 3713 1.1 christos case R_PARISC_PLABEL21L: 3714 1.1 christos case R_PARISC_PLABEL32: 3715 1.1 christos if (htab->etab.dynamic_sections_created) 3716 1.1 christos { 3717 1.1 christos bfd_vma off; 3718 1.1.1.9 christos bool do_plt = 0; 3719 1.1 christos /* If we have a global symbol with a PLT slot, then 3720 1.1 christos redirect this relocation to it. */ 3721 1.1 christos if (hh != NULL) 3722 1.1 christos { 3723 1.1 christos off = hh->eh.plt.offset; 3724 1.1.1.5 christos if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 3725 1.1.1.5 christos bfd_link_pic (info), 3726 1.1 christos &hh->eh)) 3727 1.1 christos { 3728 1.1.1.7 christos /* In a non-shared link, adjust_dynamic_symbol 3729 1.1 christos isn't called for symbols forced local. We 3730 1.1 christos need to write out the plt entry here. */ 3731 1.1 christos if ((off & 1) != 0) 3732 1.1 christos off &= ~1; 3733 1.1 christos else 3734 1.1 christos { 3735 1.1 christos hh->eh.plt.offset |= 1; 3736 1.1 christos do_plt = 1; 3737 1.1 christos } 3738 1.1 christos } 3739 1.1 christos } 3740 1.1 christos else 3741 1.1 christos { 3742 1.1 christos bfd_vma *local_plt_offsets; 3743 1.1 christos 3744 1.1 christos if (local_got_offsets == NULL) 3745 1.1 christos abort (); 3746 1.1 christos 3747 1.1 christos local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; 3748 1.1 christos off = local_plt_offsets[r_symndx]; 3749 1.1 christos 3750 1.1 christos /* As for the local .got entry case, we use the last 3751 1.1 christos bit to record whether we've already initialised 3752 1.1 christos this local .plt entry. */ 3753 1.1 christos if ((off & 1) != 0) 3754 1.1 christos off &= ~1; 3755 1.1 christos else 3756 1.1 christos { 3757 1.1 christos local_plt_offsets[r_symndx] |= 1; 3758 1.1 christos do_plt = 1; 3759 1.1 christos } 3760 1.1 christos } 3761 1.1 christos 3762 1.1 christos if (do_plt) 3763 1.1 christos { 3764 1.1.1.5 christos if (bfd_link_pic (info)) 3765 1.1 christos { 3766 1.1 christos /* Output a dynamic IPLT relocation for this 3767 1.1 christos PLT entry. */ 3768 1.1 christos Elf_Internal_Rela outrel; 3769 1.1 christos bfd_byte *loc; 3770 1.1.1.6 christos asection *s = htab->etab.srelplt; 3771 1.1 christos 3772 1.1 christos outrel.r_offset = (off 3773 1.1.1.6 christos + htab->etab.splt->output_offset 3774 1.1.1.6 christos + htab->etab.splt->output_section->vma); 3775 1.1 christos outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); 3776 1.1 christos outrel.r_addend = relocation; 3777 1.1 christos loc = s->contents; 3778 1.1 christos loc += s->reloc_count++ * sizeof (Elf32_External_Rela); 3779 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); 3780 1.1 christos } 3781 1.1 christos else 3782 1.1 christos { 3783 1.1 christos bfd_put_32 (output_bfd, 3784 1.1 christos relocation, 3785 1.1.1.6 christos htab->etab.splt->contents + off); 3786 1.1 christos bfd_put_32 (output_bfd, 3787 1.1.1.6 christos elf_gp (htab->etab.splt->output_section->owner), 3788 1.1.1.6 christos htab->etab.splt->contents + off + 4); 3789 1.1 christos } 3790 1.1 christos } 3791 1.1 christos 3792 1.1 christos if (off >= (bfd_vma) -2) 3793 1.1 christos abort (); 3794 1.1 christos 3795 1.1 christos /* PLABELs contain function pointers. Relocation is to 3796 1.1 christos the entry for the function in the .plt. The magic +2 3797 1.1 christos offset signals to $$dyncall that the function pointer 3798 1.1 christos is in the .plt and thus has a gp pointer too. 3799 1.1 christos Exception: Undefined PLABELs should have a value of 3800 1.1 christos zero. */ 3801 1.1 christos if (hh == NULL 3802 1.1 christos || (hh->eh.root.type != bfd_link_hash_undefweak 3803 1.1 christos && hh->eh.root.type != bfd_link_hash_undefined)) 3804 1.1 christos { 3805 1.1 christos relocation = (off 3806 1.1.1.6 christos + htab->etab.splt->output_offset 3807 1.1.1.6 christos + htab->etab.splt->output_section->vma 3808 1.1 christos + 2); 3809 1.1 christos } 3810 1.1 christos plabel = 1; 3811 1.1 christos } 3812 1.1.1.6 christos /* Fall through. */ 3813 1.1 christos 3814 1.1 christos case R_PARISC_DIR17F: 3815 1.1 christos case R_PARISC_DIR17R: 3816 1.1 christos case R_PARISC_DIR14F: 3817 1.1 christos case R_PARISC_DIR14R: 3818 1.1 christos case R_PARISC_DIR21L: 3819 1.1 christos case R_PARISC_DPREL14F: 3820 1.1 christos case R_PARISC_DPREL14R: 3821 1.1 christos case R_PARISC_DPREL21L: 3822 1.1 christos case R_PARISC_DIR32: 3823 1.1 christos if ((input_section->flags & SEC_ALLOC) == 0) 3824 1.1 christos break; 3825 1.1 christos 3826 1.1.1.7 christos if (bfd_link_pic (info) 3827 1.1.1.7 christos ? ((hh == NULL 3828 1.1.1.8 christos || hh->eh.dyn_relocs != NULL) 3829 1.1.1.7 christos && ((hh != NULL && pc_dynrelocs (hh)) 3830 1.1.1.7 christos || IS_ABSOLUTE_RELOC (r_type))) 3831 1.1.1.7 christos : (hh != NULL 3832 1.1.1.8 christos && hh->eh.dyn_relocs != NULL)) 3833 1.1 christos { 3834 1.1 christos Elf_Internal_Rela outrel; 3835 1.1.1.9 christos bool skip; 3836 1.1 christos asection *sreloc; 3837 1.1 christos bfd_byte *loc; 3838 1.1 christos 3839 1.1 christos /* When generating a shared object, these relocations 3840 1.1 christos are copied into the output file to be resolved at run 3841 1.1 christos time. */ 3842 1.1 christos 3843 1.1 christos outrel.r_addend = rela->r_addend; 3844 1.1 christos outrel.r_offset = 3845 1.1 christos _bfd_elf_section_offset (output_bfd, info, input_section, 3846 1.1 christos rela->r_offset); 3847 1.1 christos skip = (outrel.r_offset == (bfd_vma) -1 3848 1.1 christos || outrel.r_offset == (bfd_vma) -2); 3849 1.1 christos outrel.r_offset += (input_section->output_offset 3850 1.1 christos + input_section->output_section->vma); 3851 1.1.1.2 christos 3852 1.1 christos if (skip) 3853 1.1 christos { 3854 1.1 christos memset (&outrel, 0, sizeof (outrel)); 3855 1.1 christos } 3856 1.1 christos else if (hh != NULL 3857 1.1 christos && hh->eh.dynindx != -1 3858 1.1 christos && (plabel 3859 1.1 christos || !IS_ABSOLUTE_RELOC (r_type) 3860 1.1.1.5 christos || !bfd_link_pic (info) 3861 1.1.1.5 christos || !SYMBOLIC_BIND (info, &hh->eh) 3862 1.1 christos || !hh->eh.def_regular)) 3863 1.1 christos { 3864 1.1 christos outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type); 3865 1.1 christos } 3866 1.1 christos else /* It's a local symbol, or one marked to become local. */ 3867 1.1 christos { 3868 1.1 christos int indx = 0; 3869 1.1 christos 3870 1.1 christos /* Add the absolute offset of the symbol. */ 3871 1.1 christos outrel.r_addend += relocation; 3872 1.1 christos 3873 1.1 christos /* Global plabels need to be processed by the 3874 1.1 christos dynamic linker so that functions have at most one 3875 1.1 christos fptr. For this reason, we need to differentiate 3876 1.1 christos between global and local plabels, which we do by 3877 1.1 christos providing the function symbol for a global plabel 3878 1.1 christos reloc, and no symbol for local plabels. */ 3879 1.1 christos if (! plabel 3880 1.1 christos && sym_sec != NULL 3881 1.1 christos && sym_sec->output_section != NULL 3882 1.1 christos && ! bfd_is_abs_section (sym_sec)) 3883 1.1 christos { 3884 1.1 christos asection *osec; 3885 1.1 christos 3886 1.1 christos osec = sym_sec->output_section; 3887 1.1 christos indx = elf_section_data (osec)->dynindx; 3888 1.1 christos if (indx == 0) 3889 1.1 christos { 3890 1.1 christos osec = htab->etab.text_index_section; 3891 1.1 christos indx = elf_section_data (osec)->dynindx; 3892 1.1 christos } 3893 1.1 christos BFD_ASSERT (indx != 0); 3894 1.1 christos 3895 1.1 christos /* We are turning this relocation into one 3896 1.1 christos against a section symbol, so subtract out the 3897 1.1 christos output section's address but not the offset 3898 1.1 christos of the input section in the output section. */ 3899 1.1 christos outrel.r_addend -= osec->vma; 3900 1.1 christos } 3901 1.1 christos 3902 1.1 christos outrel.r_info = ELF32_R_INFO (indx, r_type); 3903 1.1 christos } 3904 1.1 christos sreloc = elf_section_data (input_section)->sreloc; 3905 1.1 christos if (sreloc == NULL) 3906 1.1 christos abort (); 3907 1.1 christos 3908 1.1 christos loc = sreloc->contents; 3909 1.1 christos loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); 3910 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); 3911 1.1 christos } 3912 1.1 christos break; 3913 1.1.1.2 christos 3914 1.1 christos case R_PARISC_TLS_LDM21L: 3915 1.1 christos case R_PARISC_TLS_LDM14R: 3916 1.1 christos { 3917 1.1 christos bfd_vma off; 3918 1.1.1.2 christos 3919 1.1 christos off = htab->tls_ldm_got.offset; 3920 1.1 christos if (off & 1) 3921 1.1 christos off &= ~1; 3922 1.1 christos else 3923 1.1 christos { 3924 1.1 christos Elf_Internal_Rela outrel; 3925 1.1 christos bfd_byte *loc; 3926 1.1 christos 3927 1.1.1.2 christos outrel.r_offset = (off 3928 1.1.1.6 christos + htab->etab.sgot->output_section->vma 3929 1.1.1.6 christos + htab->etab.sgot->output_offset); 3930 1.1 christos outrel.r_addend = 0; 3931 1.1 christos outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32); 3932 1.1.1.6 christos loc = htab->etab.srelgot->contents; 3933 1.1.1.6 christos loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela); 3934 1.1 christos 3935 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); 3936 1.1 christos htab->tls_ldm_got.offset |= 1; 3937 1.1 christos } 3938 1.1 christos 3939 1.1 christos /* Add the base of the GOT to the relocation value. */ 3940 1.1 christos relocation = (off 3941 1.1.1.6 christos + htab->etab.sgot->output_offset 3942 1.1.1.6 christos + htab->etab.sgot->output_section->vma); 3943 1.1 christos 3944 1.1 christos break; 3945 1.1 christos } 3946 1.1 christos 3947 1.1 christos case R_PARISC_TLS_LDO21L: 3948 1.1 christos case R_PARISC_TLS_LDO14R: 3949 1.1 christos relocation -= dtpoff_base (info); 3950 1.1 christos break; 3951 1.1 christos 3952 1.1 christos case R_PARISC_TLS_GD21L: 3953 1.1 christos case R_PARISC_TLS_GD14R: 3954 1.1 christos case R_PARISC_TLS_IE21L: 3955 1.1 christos case R_PARISC_TLS_IE14R: 3956 1.1 christos { 3957 1.1 christos bfd_vma off; 3958 1.1 christos int indx; 3959 1.1 christos char tls_type; 3960 1.1 christos 3961 1.1 christos indx = 0; 3962 1.1 christos if (hh != NULL) 3963 1.1 christos { 3964 1.1.1.7 christos if (!htab->etab.dynamic_sections_created 3965 1.1.1.7 christos || hh->eh.dynindx == -1 3966 1.1.1.7 christos || SYMBOL_REFERENCES_LOCAL (info, &hh->eh) 3967 1.1.1.7 christos || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh)) 3968 1.1.1.7 christos /* This is actually a static link, or it is a 3969 1.1.1.7 christos -Bsymbolic link and the symbol is defined 3970 1.1.1.7 christos locally, or the symbol was forced to be local 3971 1.1.1.7 christos because of a version file. */ 3972 1.1.1.7 christos ; 3973 1.1.1.7 christos else 3974 1.1.1.7 christos indx = hh->eh.dynindx; 3975 1.1 christos off = hh->eh.got.offset; 3976 1.1 christos tls_type = hh->tls_type; 3977 1.1 christos } 3978 1.1 christos else 3979 1.1 christos { 3980 1.1 christos off = local_got_offsets[r_symndx]; 3981 1.1 christos tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx]; 3982 1.1 christos } 3983 1.1 christos 3984 1.1 christos if (tls_type == GOT_UNKNOWN) 3985 1.1 christos abort (); 3986 1.1 christos 3987 1.1 christos if ((off & 1) != 0) 3988 1.1 christos off &= ~1; 3989 1.1 christos else 3990 1.1 christos { 3991 1.1.1.9 christos bool need_relocs = false; 3992 1.1 christos Elf_Internal_Rela outrel; 3993 1.1 christos bfd_byte *loc = NULL; 3994 1.1 christos int cur_off = off; 3995 1.1 christos 3996 1.1.1.7 christos /* The GOT entries have not been initialized yet. Do it 3997 1.1.1.7 christos now, and emit any relocations. If both an IE GOT and a 3998 1.1.1.7 christos GD GOT are necessary, we emit the GD first. */ 3999 1.1.1.7 christos 4000 1.1.1.7 christos if (indx != 0 4001 1.1.1.7 christos || (bfd_link_dll (info) 4002 1.1.1.7 christos && (hh == NULL 4003 1.1.1.7 christos || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh)))) 4004 1.1 christos { 4005 1.1.1.9 christos need_relocs = true; 4006 1.1.1.6 christos loc = htab->etab.srelgot->contents; 4007 1.1.1.7 christos loc += (htab->etab.srelgot->reloc_count 4008 1.1.1.7 christos * sizeof (Elf32_External_Rela)); 4009 1.1 christos } 4010 1.1 christos 4011 1.1 christos if (tls_type & GOT_TLS_GD) 4012 1.1 christos { 4013 1.1 christos if (need_relocs) 4014 1.1 christos { 4015 1.1.1.7 christos outrel.r_offset 4016 1.1.1.7 christos = (cur_off 4017 1.1.1.7 christos + htab->etab.sgot->output_section->vma 4018 1.1.1.7 christos + htab->etab.sgot->output_offset); 4019 1.1.1.7 christos outrel.r_info 4020 1.1.1.7 christos = ELF32_R_INFO (indx, R_PARISC_TLS_DTPMOD32); 4021 1.1 christos outrel.r_addend = 0; 4022 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); 4023 1.1.1.6 christos htab->etab.srelgot->reloc_count++; 4024 1.1 christos loc += sizeof (Elf32_External_Rela); 4025 1.1.1.7 christos bfd_put_32 (output_bfd, 0, 4026 1.1.1.7 christos htab->etab.sgot->contents + cur_off); 4027 1.1 christos } 4028 1.1 christos else 4029 1.1.1.7 christos /* If we are not emitting relocations for a 4030 1.1.1.7 christos general dynamic reference, then we must be in a 4031 1.1.1.7 christos static link or an executable link with the 4032 1.1.1.7 christos symbol binding locally. Mark it as belonging 4033 1.1.1.7 christos to module 1, the executable. */ 4034 1.1.1.7 christos bfd_put_32 (output_bfd, 1, 4035 1.1.1.7 christos htab->etab.sgot->contents + cur_off); 4036 1.1.1.7 christos 4037 1.1.1.7 christos if (indx != 0) 4038 1.1 christos { 4039 1.1.1.7 christos outrel.r_info 4040 1.1.1.7 christos = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32); 4041 1.1.1.7 christos outrel.r_offset += 4; 4042 1.1.1.7 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); 4043 1.1.1.7 christos htab->etab.srelgot->reloc_count++; 4044 1.1.1.7 christos loc += sizeof (Elf32_External_Rela); 4045 1.1.1.7 christos bfd_put_32 (output_bfd, 0, 4046 1.1.1.6 christos htab->etab.sgot->contents + cur_off + 4); 4047 1.1 christos } 4048 1.1.1.7 christos else 4049 1.1.1.7 christos bfd_put_32 (output_bfd, relocation - dtpoff_base (info), 4050 1.1.1.7 christos htab->etab.sgot->contents + cur_off + 4); 4051 1.1 christos cur_off += 8; 4052 1.1 christos } 4053 1.1 christos 4054 1.1 christos if (tls_type & GOT_TLS_IE) 4055 1.1 christos { 4056 1.1.1.7 christos if (need_relocs 4057 1.1.1.7 christos && !(bfd_link_executable (info) 4058 1.1.1.7 christos && SYMBOL_REFERENCES_LOCAL (info, &hh->eh))) 4059 1.1 christos { 4060 1.1.1.7 christos outrel.r_offset 4061 1.1.1.7 christos = (cur_off 4062 1.1.1.7 christos + htab->etab.sgot->output_section->vma 4063 1.1.1.7 christos + htab->etab.sgot->output_offset); 4064 1.1.1.7 christos outrel.r_info = ELF32_R_INFO (indx, 4065 1.1.1.7 christos R_PARISC_TLS_TPREL32); 4066 1.1 christos if (indx == 0) 4067 1.1 christos outrel.r_addend = relocation - dtpoff_base (info); 4068 1.1 christos else 4069 1.1 christos outrel.r_addend = 0; 4070 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); 4071 1.1.1.6 christos htab->etab.srelgot->reloc_count++; 4072 1.1 christos loc += sizeof (Elf32_External_Rela); 4073 1.1 christos } 4074 1.1 christos else 4075 1.1 christos bfd_put_32 (output_bfd, tpoff (info, relocation), 4076 1.1.1.6 christos htab->etab.sgot->contents + cur_off); 4077 1.1 christos cur_off += 4; 4078 1.1 christos } 4079 1.1 christos 4080 1.1 christos if (hh != NULL) 4081 1.1 christos hh->eh.got.offset |= 1; 4082 1.1 christos else 4083 1.1 christos local_got_offsets[r_symndx] |= 1; 4084 1.1 christos } 4085 1.1 christos 4086 1.1.1.7 christos if ((tls_type & GOT_NORMAL) != 0 4087 1.1.1.7 christos && (tls_type & (GOT_TLS_GD | GOT_TLS_LDM | GOT_TLS_IE)) != 0) 4088 1.1.1.7 christos { 4089 1.1.1.7 christos if (hh != NULL) 4090 1.1.1.7 christos _bfd_error_handler (_("%s has both normal and TLS relocs"), 4091 1.1.1.7 christos hh_name (hh)); 4092 1.1.1.7 christos else 4093 1.1.1.7 christos { 4094 1.1.1.7 christos Elf_Internal_Sym *isym 4095 1.1.1.8 christos = bfd_sym_from_r_symndx (&htab->etab.sym_cache, 4096 1.1.1.7 christos input_bfd, r_symndx); 4097 1.1.1.7 christos if (isym == NULL) 4098 1.1.1.9 christos return false; 4099 1.1.1.7 christos sym_name 4100 1.1.1.7 christos = bfd_elf_string_from_elf_section (input_bfd, 4101 1.1.1.7 christos symtab_hdr->sh_link, 4102 1.1.1.7 christos isym->st_name); 4103 1.1.1.7 christos if (sym_name == NULL) 4104 1.1.1.9 christos return false; 4105 1.1.1.7 christos if (*sym_name == '\0') 4106 1.1.1.8 christos sym_name = bfd_section_name (sym_sec); 4107 1.1.1.7 christos _bfd_error_handler 4108 1.1.1.7 christos (_("%pB:%s has both normal and TLS relocs"), 4109 1.1.1.7 christos input_bfd, sym_name); 4110 1.1.1.7 christos } 4111 1.1.1.7 christos bfd_set_error (bfd_error_bad_value); 4112 1.1.1.9 christos return false; 4113 1.1.1.7 christos } 4114 1.1.1.7 christos 4115 1.1 christos if ((tls_type & GOT_TLS_GD) 4116 1.1.1.7 christos && r_type != R_PARISC_TLS_GD21L 4117 1.1.1.7 christos && r_type != R_PARISC_TLS_GD14R) 4118 1.1 christos off += 2 * GOT_ENTRY_SIZE; 4119 1.1 christos 4120 1.1 christos /* Add the base of the GOT to the relocation value. */ 4121 1.1 christos relocation = (off 4122 1.1.1.6 christos + htab->etab.sgot->output_offset 4123 1.1.1.6 christos + htab->etab.sgot->output_section->vma); 4124 1.1 christos 4125 1.1 christos break; 4126 1.1 christos } 4127 1.1 christos 4128 1.1 christos case R_PARISC_TLS_LE21L: 4129 1.1 christos case R_PARISC_TLS_LE14R: 4130 1.1 christos { 4131 1.1 christos relocation = tpoff (info, relocation); 4132 1.1 christos break; 4133 1.1 christos } 4134 1.1 christos break; 4135 1.1 christos 4136 1.1 christos default: 4137 1.1 christos break; 4138 1.1 christos } 4139 1.1 christos 4140 1.1 christos rstatus = final_link_relocate (input_section, contents, rela, relocation, 4141 1.1 christos htab, sym_sec, hh, info); 4142 1.1 christos 4143 1.1 christos if (rstatus == bfd_reloc_ok) 4144 1.1 christos continue; 4145 1.1 christos 4146 1.1 christos if (hh != NULL) 4147 1.1 christos sym_name = hh_name (hh); 4148 1.1 christos else 4149 1.1 christos { 4150 1.1 christos sym_name = bfd_elf_string_from_elf_section (input_bfd, 4151 1.1 christos symtab_hdr->sh_link, 4152 1.1 christos sym->st_name); 4153 1.1 christos if (sym_name == NULL) 4154 1.1.1.9 christos return false; 4155 1.1 christos if (*sym_name == '\0') 4156 1.1.1.8 christos sym_name = bfd_section_name (sym_sec); 4157 1.1 christos } 4158 1.1 christos 4159 1.1 christos howto = elf_hppa_howto_table + r_type; 4160 1.1 christos 4161 1.1 christos if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported) 4162 1.1 christos { 4163 1.1 christos if (rstatus == bfd_reloc_notsupported || !warned_undef) 4164 1.1 christos { 4165 1.1.1.6 christos _bfd_error_handler 4166 1.1.1.6 christos /* xgettext:c-format */ 4167 1.1.1.7 christos (_("%pB(%pA+%#" PRIx64 "): cannot handle %s for %s"), 4168 1.1 christos input_bfd, 4169 1.1 christos input_section, 4170 1.1.1.7 christos (uint64_t) rela->r_offset, 4171 1.1 christos howto->name, 4172 1.1 christos sym_name); 4173 1.1 christos bfd_set_error (bfd_error_bad_value); 4174 1.1.1.9 christos return false; 4175 1.1 christos } 4176 1.1 christos } 4177 1.1 christos else 4178 1.1.1.5 christos (*info->callbacks->reloc_overflow) 4179 1.1.1.5 christos (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name, 4180 1.1.1.5 christos (bfd_vma) 0, input_bfd, input_section, rela->r_offset); 4181 1.1 christos } 4182 1.1 christos 4183 1.1.1.9 christos return true; 4184 1.1 christos } 4185 1.1 christos 4186 1.1 christos /* Finish up dynamic symbol handling. We set the contents of various 4187 1.1 christos dynamic sections here. */ 4188 1.1 christos 4189 1.1.1.9 christos static bool 4190 1.1 christos elf32_hppa_finish_dynamic_symbol (bfd *output_bfd, 4191 1.1 christos struct bfd_link_info *info, 4192 1.1 christos struct elf_link_hash_entry *eh, 4193 1.1 christos Elf_Internal_Sym *sym) 4194 1.1 christos { 4195 1.1 christos struct elf32_hppa_link_hash_table *htab; 4196 1.1 christos Elf_Internal_Rela rela; 4197 1.1 christos bfd_byte *loc; 4198 1.1 christos 4199 1.1 christos htab = hppa_link_hash_table (info); 4200 1.1 christos 4201 1.1 christos if (eh->plt.offset != (bfd_vma) -1) 4202 1.1 christos { 4203 1.1 christos bfd_vma value; 4204 1.1 christos 4205 1.1 christos if (eh->plt.offset & 1) 4206 1.1 christos abort (); 4207 1.1 christos 4208 1.1 christos /* This symbol has an entry in the procedure linkage table. Set 4209 1.1 christos it up. 4210 1.1 christos 4211 1.1 christos The format of a plt entry is 4212 1.1 christos <funcaddr> 4213 1.1 christos <__gp> 4214 1.1 christos */ 4215 1.1 christos value = 0; 4216 1.1 christos if (eh->root.type == bfd_link_hash_defined 4217 1.1 christos || eh->root.type == bfd_link_hash_defweak) 4218 1.1 christos { 4219 1.1 christos value = eh->root.u.def.value; 4220 1.1 christos if (eh->root.u.def.section->output_section != NULL) 4221 1.1 christos value += (eh->root.u.def.section->output_offset 4222 1.1 christos + eh->root.u.def.section->output_section->vma); 4223 1.1 christos } 4224 1.1 christos 4225 1.1 christos /* Create a dynamic IPLT relocation for this entry. */ 4226 1.1 christos rela.r_offset = (eh->plt.offset 4227 1.1.1.6 christos + htab->etab.splt->output_offset 4228 1.1.1.6 christos + htab->etab.splt->output_section->vma); 4229 1.1 christos if (eh->dynindx != -1) 4230 1.1 christos { 4231 1.1 christos rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT); 4232 1.1 christos rela.r_addend = 0; 4233 1.1 christos } 4234 1.1 christos else 4235 1.1 christos { 4236 1.1 christos /* This symbol has been marked to become local, and is 4237 1.1 christos used by a plabel so must be kept in the .plt. */ 4238 1.1 christos rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); 4239 1.1 christos rela.r_addend = value; 4240 1.1 christos } 4241 1.1 christos 4242 1.1.1.6 christos loc = htab->etab.srelplt->contents; 4243 1.1.1.6 christos loc += htab->etab.srelplt->reloc_count++ * sizeof (Elf32_External_Rela); 4244 1.1.1.6 christos bfd_elf32_swap_reloca_out (htab->etab.splt->output_section->owner, &rela, loc); 4245 1.1 christos 4246 1.1 christos if (!eh->def_regular) 4247 1.1 christos { 4248 1.1 christos /* Mark the symbol as undefined, rather than as defined in 4249 1.1 christos the .plt section. Leave the value alone. */ 4250 1.1 christos sym->st_shndx = SHN_UNDEF; 4251 1.1 christos } 4252 1.1 christos } 4253 1.1 christos 4254 1.1 christos if (eh->got.offset != (bfd_vma) -1 4255 1.1.1.7 christos && (hppa_elf_hash_entry (eh)->tls_type & GOT_NORMAL) != 0 4256 1.1.1.7 christos && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)) 4257 1.1 christos { 4258 1.1.1.9 christos bool is_dyn = (eh->dynindx != -1 4259 1.1.1.9 christos && !SYMBOL_REFERENCES_LOCAL (info, eh)); 4260 1.1 christos 4261 1.1.1.7 christos if (is_dyn || bfd_link_pic (info)) 4262 1.1 christos { 4263 1.1.1.7 christos /* This symbol has an entry in the global offset table. Set 4264 1.1.1.7 christos it up. */ 4265 1.1.1.7 christos 4266 1.1.1.7 christos rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1) 4267 1.1.1.7 christos + htab->etab.sgot->output_offset 4268 1.1.1.7 christos + htab->etab.sgot->output_section->vma); 4269 1.1.1.7 christos 4270 1.1.1.7 christos /* If this is a -Bsymbolic link and the symbol is defined 4271 1.1.1.7 christos locally or was forced to be local because of a version 4272 1.1.1.7 christos file, we just want to emit a RELATIVE reloc. The entry 4273 1.1.1.7 christos in the global offset table will already have been 4274 1.1.1.7 christos initialized in the relocate_section function. */ 4275 1.1.1.10 christos if (!is_dyn 4276 1.1.1.10 christos && (eh->root.type == bfd_link_hash_defined 4277 1.1.1.10 christos || eh->root.type == bfd_link_hash_defweak)) 4278 1.1.1.7 christos { 4279 1.1.1.7 christos rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); 4280 1.1.1.7 christos rela.r_addend = (eh->root.u.def.value 4281 1.1.1.7 christos + eh->root.u.def.section->output_offset 4282 1.1.1.7 christos + eh->root.u.def.section->output_section->vma); 4283 1.1.1.7 christos } 4284 1.1.1.7 christos else 4285 1.1.1.7 christos { 4286 1.1.1.7 christos if ((eh->got.offset & 1) != 0) 4287 1.1.1.7 christos abort (); 4288 1.1 christos 4289 1.1.1.7 christos bfd_put_32 (output_bfd, 0, 4290 1.1.1.7 christos htab->etab.sgot->contents + (eh->got.offset & ~1)); 4291 1.1.1.7 christos rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32); 4292 1.1.1.7 christos rela.r_addend = 0; 4293 1.1.1.7 christos } 4294 1.1 christos 4295 1.1.1.7 christos loc = htab->etab.srelgot->contents; 4296 1.1.1.7 christos loc += (htab->etab.srelgot->reloc_count++ 4297 1.1.1.7 christos * sizeof (Elf32_External_Rela)); 4298 1.1.1.7 christos bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); 4299 1.1.1.7 christos } 4300 1.1 christos } 4301 1.1 christos 4302 1.1 christos if (eh->needs_copy) 4303 1.1 christos { 4304 1.1 christos asection *sec; 4305 1.1 christos 4306 1.1 christos /* This symbol needs a copy reloc. Set it up. */ 4307 1.1 christos 4308 1.1 christos if (! (eh->dynindx != -1 4309 1.1 christos && (eh->root.type == bfd_link_hash_defined 4310 1.1 christos || eh->root.type == bfd_link_hash_defweak))) 4311 1.1 christos abort (); 4312 1.1 christos 4313 1.1 christos rela.r_offset = (eh->root.u.def.value 4314 1.1 christos + eh->root.u.def.section->output_offset 4315 1.1 christos + eh->root.u.def.section->output_section->vma); 4316 1.1 christos rela.r_addend = 0; 4317 1.1 christos rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY); 4318 1.1.1.6 christos if (eh->root.u.def.section == htab->etab.sdynrelro) 4319 1.1.1.6 christos sec = htab->etab.sreldynrelro; 4320 1.1.1.6 christos else 4321 1.1.1.6 christos sec = htab->etab.srelbss; 4322 1.1 christos loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela); 4323 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); 4324 1.1 christos } 4325 1.1 christos 4326 1.1 christos /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ 4327 1.1.1.2 christos if (eh == htab->etab.hdynamic || eh == htab->etab.hgot) 4328 1.1 christos { 4329 1.1 christos sym->st_shndx = SHN_ABS; 4330 1.1 christos } 4331 1.1 christos 4332 1.1.1.9 christos return true; 4333 1.1 christos } 4334 1.1 christos 4335 1.1 christos /* Used to decide how to sort relocs in an optimal manner for the 4336 1.1 christos dynamic linker, before writing them out. */ 4337 1.1 christos 4338 1.1 christos static enum elf_reloc_type_class 4339 1.1.1.3 christos elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, 4340 1.1.1.3 christos const asection *rel_sec ATTRIBUTE_UNUSED, 4341 1.1.1.3 christos const Elf_Internal_Rela *rela) 4342 1.1 christos { 4343 1.1 christos /* Handle TLS relocs first; we don't want them to be marked 4344 1.1 christos relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)" 4345 1.1 christos check below. */ 4346 1.1 christos switch ((int) ELF32_R_TYPE (rela->r_info)) 4347 1.1 christos { 4348 1.1 christos case R_PARISC_TLS_DTPMOD32: 4349 1.1 christos case R_PARISC_TLS_DTPOFF32: 4350 1.1 christos case R_PARISC_TLS_TPREL32: 4351 1.1.1.7 christos return reloc_class_normal; 4352 1.1 christos } 4353 1.1 christos 4354 1.1 christos if (ELF32_R_SYM (rela->r_info) == STN_UNDEF) 4355 1.1 christos return reloc_class_relative; 4356 1.1 christos 4357 1.1 christos switch ((int) ELF32_R_TYPE (rela->r_info)) 4358 1.1 christos { 4359 1.1 christos case R_PARISC_IPLT: 4360 1.1 christos return reloc_class_plt; 4361 1.1 christos case R_PARISC_COPY: 4362 1.1 christos return reloc_class_copy; 4363 1.1 christos default: 4364 1.1 christos return reloc_class_normal; 4365 1.1 christos } 4366 1.1 christos } 4367 1.1 christos 4368 1.1 christos /* Finish up the dynamic sections. */ 4369 1.1 christos 4370 1.1.1.9 christos static bool 4371 1.1 christos elf32_hppa_finish_dynamic_sections (bfd *output_bfd, 4372 1.1 christos struct bfd_link_info *info) 4373 1.1 christos { 4374 1.1 christos bfd *dynobj; 4375 1.1 christos struct elf32_hppa_link_hash_table *htab; 4376 1.1 christos asection *sdyn; 4377 1.1.1.2 christos asection * sgot; 4378 1.1 christos 4379 1.1 christos htab = hppa_link_hash_table (info); 4380 1.1 christos if (htab == NULL) 4381 1.1.1.9 christos return false; 4382 1.1 christos 4383 1.1 christos dynobj = htab->etab.dynobj; 4384 1.1 christos 4385 1.1.1.6 christos sgot = htab->etab.sgot; 4386 1.1.1.2 christos /* A broken linker script might have discarded the dynamic sections. 4387 1.1.1.2 christos Catch this here so that we do not seg-fault later on. */ 4388 1.1.1.2 christos if (sgot != NULL && bfd_is_abs_section (sgot->output_section)) 4389 1.1.1.9 christos return false; 4390 1.1.1.2 christos 4391 1.1.1.2 christos sdyn = bfd_get_linker_section (dynobj, ".dynamic"); 4392 1.1 christos 4393 1.1 christos if (htab->etab.dynamic_sections_created) 4394 1.1 christos { 4395 1.1 christos Elf32_External_Dyn *dyncon, *dynconend; 4396 1.1 christos 4397 1.1 christos if (sdyn == NULL) 4398 1.1 christos abort (); 4399 1.1 christos 4400 1.1 christos dyncon = (Elf32_External_Dyn *) sdyn->contents; 4401 1.1 christos dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); 4402 1.1 christos for (; dyncon < dynconend; dyncon++) 4403 1.1 christos { 4404 1.1 christos Elf_Internal_Dyn dyn; 4405 1.1 christos asection *s; 4406 1.1 christos 4407 1.1 christos bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); 4408 1.1 christos 4409 1.1 christos switch (dyn.d_tag) 4410 1.1 christos { 4411 1.1 christos default: 4412 1.1 christos continue; 4413 1.1 christos 4414 1.1 christos case DT_PLTGOT: 4415 1.1 christos /* Use PLTGOT to set the GOT register. */ 4416 1.1 christos dyn.d_un.d_ptr = elf_gp (output_bfd); 4417 1.1 christos break; 4418 1.1 christos 4419 1.1 christos case DT_JMPREL: 4420 1.1.1.6 christos s = htab->etab.srelplt; 4421 1.1 christos dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; 4422 1.1 christos break; 4423 1.1 christos 4424 1.1 christos case DT_PLTRELSZ: 4425 1.1.1.6 christos s = htab->etab.srelplt; 4426 1.1 christos dyn.d_un.d_val = s->size; 4427 1.1 christos break; 4428 1.1 christos } 4429 1.1 christos 4430 1.1 christos bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); 4431 1.1 christos } 4432 1.1 christos } 4433 1.1 christos 4434 1.1.1.2 christos if (sgot != NULL && sgot->size != 0) 4435 1.1 christos { 4436 1.1 christos /* Fill in the first entry in the global offset table. 4437 1.1 christos We use it to point to our dynamic section, if we have one. */ 4438 1.1 christos bfd_put_32 (output_bfd, 4439 1.1 christos sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0, 4440 1.1.1.2 christos sgot->contents); 4441 1.1 christos 4442 1.1 christos /* The second entry is reserved for use by the dynamic linker. */ 4443 1.1.1.2 christos memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); 4444 1.1 christos 4445 1.1 christos /* Set .got entry size. */ 4446 1.1.1.2 christos elf_section_data (sgot->output_section) 4447 1.1 christos ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; 4448 1.1 christos } 4449 1.1 christos 4450 1.1.1.6 christos if (htab->etab.splt != NULL && htab->etab.splt->size != 0) 4451 1.1 christos { 4452 1.1.1.5 christos /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the 4453 1.1.1.5 christos plt stubs and as such the section does not hold a table of fixed-size 4454 1.1.1.5 christos entries. */ 4455 1.1.1.6 christos elf_section_data (htab->etab.splt->output_section)->this_hdr.sh_entsize = 0; 4456 1.1 christos 4457 1.1 christos if (htab->need_plt_stub) 4458 1.1 christos { 4459 1.1 christos /* Set up the .plt stub. */ 4460 1.1.1.6 christos memcpy (htab->etab.splt->contents 4461 1.1.1.6 christos + htab->etab.splt->size - sizeof (plt_stub), 4462 1.1 christos plt_stub, sizeof (plt_stub)); 4463 1.1 christos 4464 1.1.1.6 christos if ((htab->etab.splt->output_offset 4465 1.1.1.6 christos + htab->etab.splt->output_section->vma 4466 1.1.1.6 christos + htab->etab.splt->size) 4467 1.1.1.2 christos != (sgot->output_offset 4468 1.1.1.2 christos + sgot->output_section->vma)) 4469 1.1 christos { 4470 1.1.1.6 christos _bfd_error_handler 4471 1.1 christos (_(".got section not immediately after .plt section")); 4472 1.1.1.9 christos return false; 4473 1.1 christos } 4474 1.1 christos } 4475 1.1 christos } 4476 1.1 christos 4477 1.1.1.9 christos return true; 4478 1.1 christos } 4479 1.1 christos 4480 1.1 christos /* Called when writing out an object file to decide the type of a 4481 1.1 christos symbol. */ 4482 1.1 christos static int 4483 1.1 christos elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type) 4484 1.1 christos { 4485 1.1 christos if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) 4486 1.1 christos return STT_PARISC_MILLI; 4487 1.1 christos else 4488 1.1 christos return type; 4489 1.1 christos } 4490 1.1 christos 4491 1.1 christos /* Misc BFD support code. */ 4492 1.1 christos #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name 4493 1.1 christos #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup 4494 1.1 christos #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup 4495 1.1 christos #define elf_info_to_howto elf_hppa_info_to_howto 4496 1.1 christos #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel 4497 1.1 christos 4498 1.1 christos /* Stuff for the BFD linker. */ 4499 1.1 christos #define bfd_elf32_bfd_final_link elf32_hppa_final_link 4500 1.1 christos #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create 4501 1.1 christos #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol 4502 1.1 christos #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol 4503 1.1 christos #define elf_backend_check_relocs elf32_hppa_check_relocs 4504 1.1.1.7 christos #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible 4505 1.1 christos #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections 4506 1.1 christos #define elf_backend_fake_sections elf_hppa_fake_sections 4507 1.1 christos #define elf_backend_relocate_section elf32_hppa_relocate_section 4508 1.1 christos #define elf_backend_hide_symbol elf32_hppa_hide_symbol 4509 1.1 christos #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol 4510 1.1 christos #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections 4511 1.1.1.10 christos #define elf_backend_late_size_sections elf32_hppa_late_size_sections 4512 1.1 christos #define elf_backend_init_index_section _bfd_elf_init_1_index_section 4513 1.1 christos #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook 4514 1.1 christos #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus 4515 1.1 christos #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo 4516 1.1 christos #define elf_backend_object_p elf32_hppa_object_p 4517 1.1 christos #define elf_backend_final_write_processing elf_hppa_final_write_processing 4518 1.1 christos #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type 4519 1.1 christos #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class 4520 1.1 christos #define elf_backend_action_discarded elf_hppa_action_discarded 4521 1.1 christos 4522 1.1 christos #define elf_backend_can_gc_sections 1 4523 1.1 christos #define elf_backend_can_refcount 1 4524 1.1 christos #define elf_backend_plt_alignment 2 4525 1.1 christos #define elf_backend_want_got_plt 0 4526 1.1 christos #define elf_backend_plt_readonly 0 4527 1.1 christos #define elf_backend_want_plt_sym 0 4528 1.1 christos #define elf_backend_got_header_size 8 4529 1.1.1.6 christos #define elf_backend_want_dynrelro 1 4530 1.1 christos #define elf_backend_rela_normal 1 4531 1.1.1.6 christos #define elf_backend_dtrel_excludes_plt 1 4532 1.1.1.6 christos #define elf_backend_no_page_alias 1 4533 1.1 christos 4534 1.1.1.4 christos #define TARGET_BIG_SYM hppa_elf32_vec 4535 1.1 christos #define TARGET_BIG_NAME "elf32-hppa" 4536 1.1 christos #define ELF_ARCH bfd_arch_hppa 4537 1.1 christos #define ELF_TARGET_ID HPPA32_ELF_DATA 4538 1.1 christos #define ELF_MACHINE_CODE EM_PARISC 4539 1.1 christos #define ELF_MAXPAGESIZE 0x1000 4540 1.1 christos #define ELF_OSABI ELFOSABI_HPUX 4541 1.1 christos #define elf32_bed elf32_hppa_hpux_bed 4542 1.1 christos 4543 1.1 christos #include "elf32-target.h" 4544 1.1 christos 4545 1.1 christos #undef TARGET_BIG_SYM 4546 1.1.1.4 christos #define TARGET_BIG_SYM hppa_elf32_linux_vec 4547 1.1 christos #undef TARGET_BIG_NAME 4548 1.1 christos #define TARGET_BIG_NAME "elf32-hppa-linux" 4549 1.1 christos #undef ELF_OSABI 4550 1.1.1.2 christos #define ELF_OSABI ELFOSABI_GNU 4551 1.1 christos #undef elf32_bed 4552 1.1 christos #define elf32_bed elf32_hppa_linux_bed 4553 1.1 christos 4554 1.1 christos #include "elf32-target.h" 4555 1.1 christos 4556 1.1 christos #undef TARGET_BIG_SYM 4557 1.1.1.4 christos #define TARGET_BIG_SYM hppa_elf32_nbsd_vec 4558 1.1 christos #undef TARGET_BIG_NAME 4559 1.1 christos #define TARGET_BIG_NAME "elf32-hppa-netbsd" 4560 1.1 christos #undef ELF_OSABI 4561 1.1 christos #define ELF_OSABI ELFOSABI_NETBSD 4562 1.1 christos #undef elf32_bed 4563 1.1 christos #define elf32_bed elf32_hppa_netbsd_bed 4564 1.1 christos 4565 1.1 christos #include "elf32-target.h" 4566