1 /* BFD back-end for HP PA-RISC ELF files.
2 Copyright (C) 1990-2017 Free Software Foundation, Inc.
5 Center for Software Science
6 Department of Computer Science
8 Largely rewritten by Alan Modra <alan@linuxcare.com.au>
9 Naming cleanup by Carlos O'Donell <carlos@systemhalted.org>
10 TLS support written by Randolph Chung <tausq@debian.org>
12 This file is part of BFD, the Binary File Descriptor library.
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 3 of the License, or
17 (at your option) any later version.
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
26 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
27 MA 02110-1301, USA. */
35 #include "elf32-hppa.h"
37 #include "elf32-hppa.h"
40 /* In order to gain some understanding of code in this file without
41 knowing all the intricate details of the linker, note the
44 Functions named elf32_hppa_* are called by external routines, other
45 functions are only called locally. elf32_hppa_* functions appear
46 in this file more or less in the order in which they are called
47 from external routines. eg. elf32_hppa_check_relocs is called
48 early in the link process, elf32_hppa_finish_dynamic_sections is
49 one of the last functions. */
51 /* We use two hash tables to hold information for linking PA ELF objects.
53 The first is the elf32_hppa_link_hash_table which is derived
54 from the standard ELF linker hash table. We use this as a place to
55 attach other hash tables and static information.
57 The second is the stub hash table which is derived from the
58 base BFD hash table. The stub hash table holds the information
59 necessary to build the linker stubs during a link.
61 There are a number of different stubs generated by the linker.
69 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
70 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
72 Import stub to call shared library routine from normal object file
73 (single sub-space version)
74 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
75 : ldw RR'lt_ptr+ltoff(%r1),%r21
77 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
79 Import stub to call shared library routine from shared library
80 (single sub-space version)
81 : addil LR'ltoff,%r19 ; get procedure entry point
82 : ldw RR'ltoff(%r1),%r21
84 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
86 Import stub to call shared library routine from normal object file
87 (multiple sub-space support)
88 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
89 : ldw RR'lt_ptr+ltoff(%r1),%r21
90 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
93 : be 0(%sr0,%r21) ; branch to target
94 : stw %rp,-24(%sp) ; save rp
96 Import stub to call shared library routine from shared library
97 (multiple sub-space support)
98 : addil LR'ltoff,%r19 ; get procedure entry point
99 : ldw RR'ltoff(%r1),%r21
100 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
103 : be 0(%sr0,%r21) ; branch to target
104 : stw %rp,-24(%sp) ; save rp
106 Export stub to return from shared lib routine (multiple sub-space support)
107 One of these is created for each exported procedure in a shared
108 library (and stored in the shared lib). Shared lib routines are
109 called via the first instruction in the export stub so that we can
110 do an inter-space return. Not required for single sub-space.
111 : bl,n X,%rp ; trap the return
113 : ldw -24(%sp),%rp ; restore the original rp
116 : be,n 0(%sr0,%rp) ; inter-space return. */
119 /* Variable names follow a coding style.
120 Please follow this (Apps Hungarian) style:
122 Structure/Variable Prefix
123 elf_link_hash_table "etab"
124 elf_link_hash_entry "eh"
126 elf32_hppa_link_hash_table "htab"
127 elf32_hppa_link_hash_entry "hh"
129 bfd_hash_table "btab"
132 bfd_hash_table containing stubs "bstab"
133 elf32_hppa_stub_hash_entry "hsh"
135 elf32_hppa_dyn_reloc_entry "hdh"
137 Always remember to use GNU Coding Style. */
139 #define PLT_ENTRY_SIZE 8
140 #define GOT_ENTRY_SIZE 4
141 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
143 static const bfd_byte plt_stub[] =
145 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
146 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
147 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
148 #define PLT_STUB_ENTRY (3*4)
149 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
150 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
151 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
152 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
155 /* Section name for stubs is the associated section name plus this
157 #define STUB_SUFFIX ".stub"
159 /* We don't need to copy certain PC- or GP-relative dynamic relocs
160 into a shared object's dynamic section. All the relocs of the
161 limited class we are interested in, are absolute. */
162 #ifndef RELATIVE_DYNRELOCS
163 #define RELATIVE_DYNRELOCS 0
164 #define IS_ABSOLUTE_RELOC(r_type) 1
165 #define pc_dynrelocs(hh) 0
168 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
169 copying dynamic variables from a shared lib into an app's dynbss
170 section, and instead use a dynamic relocation to point into the
172 #define ELIMINATE_COPY_RELOCS 1
174 enum elf32_hppa_stub_type
176 hppa_stub_long_branch,
177 hppa_stub_long_branch_shared,
179 hppa_stub_import_shared,
184 struct elf32_hppa_stub_hash_entry
186 /* Base hash table entry structure. */
187 struct bfd_hash_entry bh_root;
189 /* The stub section. */
192 /* Offset within stub_sec of the beginning of this stub. */
195 /* Given the symbol's value and its section we can determine its final
196 value when building the stubs (so the stub knows where to jump. */
197 bfd_vma target_value;
198 asection *target_section;
200 enum elf32_hppa_stub_type stub_type;
202 /* The symbol table entry, if any, that this was derived from. */
203 struct elf32_hppa_link_hash_entry *hh;
205 /* Where this stub is being called from, or, in the case of combined
206 stub sections, the first input section in the group. */
219 struct elf32_hppa_link_hash_entry
221 struct elf_link_hash_entry eh;
223 /* A pointer to the most recently used stub hash entry against this
225 struct elf32_hppa_stub_hash_entry *hsh_cache;
227 /* Used to count relocations for delayed sizing of relocation
229 struct elf32_hppa_dyn_reloc_entry
231 /* Next relocation in the chain. */
232 struct elf32_hppa_dyn_reloc_entry *hdh_next;
234 /* The input section of the reloc. */
237 /* Number of relocs copied in this section. */
240 #if RELATIVE_DYNRELOCS
241 /* Number of relative relocs copied for the input section. */
242 bfd_size_type relative_count;
246 ENUM_BITFIELD (_tls_type) tls_type : 8;
248 /* Set if this symbol is used by a plabel reloc. */
249 unsigned int plabel:1;
252 struct elf32_hppa_link_hash_table
254 /* The main hash table. */
255 struct elf_link_hash_table etab;
257 /* The stub hash table. */
258 struct bfd_hash_table bstab;
260 /* Linker stub bfd. */
263 /* Linker call-backs. */
264 asection * (*add_stub_section) (const char *, asection *);
265 void (*layout_sections_again) (void);
267 /* Array to keep track of which stub sections have been created, and
268 information on stub grouping. */
271 /* This is the section to which stubs in the group will be
274 /* The stub section. */
278 /* Assorted information used by elf32_hppa_size_stubs. */
279 unsigned int bfd_count;
280 unsigned int top_index;
281 asection **input_list;
282 Elf_Internal_Sym **all_local_syms;
284 /* Used during a final link to store the base of the text and data
285 segments so that we can perform SEGREL relocations. */
286 bfd_vma text_segment_base;
287 bfd_vma data_segment_base;
289 /* Whether we support multiple sub-spaces for shared libs. */
290 unsigned int multi_subspace:1;
292 /* Flags set when various size branches are detected. Used to
293 select suitable defaults for the stub group size. */
294 unsigned int has_12bit_branch:1;
295 unsigned int has_17bit_branch:1;
296 unsigned int has_22bit_branch:1;
298 /* Set if we need a .plt stub to support lazy dynamic linking. */
299 unsigned int need_plt_stub:1;
301 /* Small local sym cache. */
302 struct sym_cache sym_cache;
304 /* Data for LDM relocations. */
307 bfd_signed_vma refcount;
312 /* Various hash macros and functions. */
313 #define hppa_link_hash_table(p) \
314 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
315 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
317 #define hppa_elf_hash_entry(ent) \
318 ((struct elf32_hppa_link_hash_entry *)(ent))
320 #define hppa_stub_hash_entry(ent) \
321 ((struct elf32_hppa_stub_hash_entry *)(ent))
323 #define hppa_stub_hash_lookup(table, string, create, copy) \
324 ((struct elf32_hppa_stub_hash_entry *) \
325 bfd_hash_lookup ((table), (string), (create), (copy)))
327 #define hppa_elf_local_got_tls_type(abfd) \
328 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
330 #define hh_name(hh) \
331 (hh ? hh->eh.root.root.string : "<undef>")
333 #define eh_name(eh) \
334 (eh ? eh->root.root.string : "<undef>")
336 /* Assorted hash table functions. */
338 /* Initialize an entry in the stub hash table. */
340 static struct bfd_hash_entry *
341 stub_hash_newfunc (struct bfd_hash_entry *entry,
342 struct bfd_hash_table *table,
345 /* Allocate the structure if it has not already been allocated by a
349 entry = bfd_hash_allocate (table,
350 sizeof (struct elf32_hppa_stub_hash_entry));
355 /* Call the allocation method of the superclass. */
356 entry = bfd_hash_newfunc (entry, table, string);
359 struct elf32_hppa_stub_hash_entry *hsh;
361 /* Initialize the local fields. */
362 hsh = hppa_stub_hash_entry (entry);
363 hsh->stub_sec = NULL;
364 hsh->stub_offset = 0;
365 hsh->target_value = 0;
366 hsh->target_section = NULL;
367 hsh->stub_type = hppa_stub_long_branch;
375 /* Initialize an entry in the link hash table. */
377 static struct bfd_hash_entry *
378 hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
379 struct bfd_hash_table *table,
382 /* Allocate the structure if it has not already been allocated by a
386 entry = bfd_hash_allocate (table,
387 sizeof (struct elf32_hppa_link_hash_entry));
392 /* Call the allocation method of the superclass. */
393 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
396 struct elf32_hppa_link_hash_entry *hh;
398 /* Initialize the local fields. */
399 hh = hppa_elf_hash_entry (entry);
400 hh->hsh_cache = NULL;
401 hh->dyn_relocs = NULL;
403 hh->tls_type = GOT_UNKNOWN;
409 /* Free the derived linker hash table. */
412 elf32_hppa_link_hash_table_free (bfd *obfd)
414 struct elf32_hppa_link_hash_table *htab
415 = (struct elf32_hppa_link_hash_table *) obfd->link.hash;
417 bfd_hash_table_free (&htab->bstab);
418 _bfd_elf_link_hash_table_free (obfd);
421 /* Create the derived linker hash table. The PA ELF port uses the derived
422 hash table to keep information specific to the PA ELF linker (without
423 using static variables). */
425 static struct bfd_link_hash_table *
426 elf32_hppa_link_hash_table_create (bfd *abfd)
428 struct elf32_hppa_link_hash_table *htab;
429 bfd_size_type amt = sizeof (*htab);
431 htab = bfd_zmalloc (amt);
435 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
436 sizeof (struct elf32_hppa_link_hash_entry),
443 /* Init the stub hash table too. */
444 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
445 sizeof (struct elf32_hppa_stub_hash_entry)))
447 _bfd_elf_link_hash_table_free (abfd);
450 htab->etab.root.hash_table_free = elf32_hppa_link_hash_table_free;
452 htab->text_segment_base = (bfd_vma) -1;
453 htab->data_segment_base = (bfd_vma) -1;
454 return &htab->etab.root;
457 /* Initialize the linker stubs BFD so that we can use it for linker
458 created dynamic sections. */
461 elf32_hppa_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
463 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
465 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS32;
466 htab->etab.dynobj = abfd;
469 /* Build a name for an entry in the stub hash table. */
472 hppa_stub_name (const asection *input_section,
473 const asection *sym_sec,
474 const struct elf32_hppa_link_hash_entry *hh,
475 const Elf_Internal_Rela *rela)
482 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
483 stub_name = bfd_malloc (len);
484 if (stub_name != NULL)
485 sprintf (stub_name, "%08x_%s+%x",
486 input_section->id & 0xffffffff,
488 (int) rela->r_addend & 0xffffffff);
492 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
493 stub_name = bfd_malloc (len);
494 if (stub_name != NULL)
495 sprintf (stub_name, "%08x_%x:%x+%x",
496 input_section->id & 0xffffffff,
497 sym_sec->id & 0xffffffff,
498 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
499 (int) rela->r_addend & 0xffffffff);
504 /* Look up an entry in the stub hash. Stub entries are cached because
505 creating the stub name takes a bit of time. */
507 static struct elf32_hppa_stub_hash_entry *
508 hppa_get_stub_entry (const asection *input_section,
509 const asection *sym_sec,
510 struct elf32_hppa_link_hash_entry *hh,
511 const Elf_Internal_Rela *rela,
512 struct elf32_hppa_link_hash_table *htab)
514 struct elf32_hppa_stub_hash_entry *hsh_entry;
515 const asection *id_sec;
517 /* If this input section is part of a group of sections sharing one
518 stub section, then use the id of the first section in the group.
519 Stub names need to include a section id, as there may well be
520 more than one stub used to reach say, printf, and we need to
521 distinguish between them. */
522 id_sec = htab->stub_group[input_section->id].link_sec;
524 if (hh != NULL && hh->hsh_cache != NULL
525 && hh->hsh_cache->hh == hh
526 && hh->hsh_cache->id_sec == id_sec)
528 hsh_entry = hh->hsh_cache;
534 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
535 if (stub_name == NULL)
538 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
539 stub_name, FALSE, FALSE);
541 hh->hsh_cache = hsh_entry;
549 /* Add a new stub entry to the stub hash. Not all fields of the new
550 stub entry are initialised. */
552 static struct elf32_hppa_stub_hash_entry *
553 hppa_add_stub (const char *stub_name,
555 struct elf32_hppa_link_hash_table *htab)
559 struct elf32_hppa_stub_hash_entry *hsh;
561 link_sec = htab->stub_group[section->id].link_sec;
562 stub_sec = htab->stub_group[section->id].stub_sec;
563 if (stub_sec == NULL)
565 stub_sec = htab->stub_group[link_sec->id].stub_sec;
566 if (stub_sec == NULL)
572 namelen = strlen (link_sec->name);
573 len = namelen + sizeof (STUB_SUFFIX);
574 s_name = bfd_alloc (htab->stub_bfd, len);
578 memcpy (s_name, link_sec->name, namelen);
579 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
580 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
581 if (stub_sec == NULL)
583 htab->stub_group[link_sec->id].stub_sec = stub_sec;
585 htab->stub_group[section->id].stub_sec = stub_sec;
588 /* Enter this entry into the linker stub hash table. */
589 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
593 /* xgettext:c-format */
594 _bfd_error_handler (_("%B: cannot create stub entry %s"),
595 section->owner, stub_name);
599 hsh->stub_sec = stub_sec;
600 hsh->stub_offset = 0;
601 hsh->id_sec = link_sec;
605 /* Determine the type of stub needed, if any, for a call. */
607 static enum elf32_hppa_stub_type
608 hppa_type_of_stub (asection *input_sec,
609 const Elf_Internal_Rela *rela,
610 struct elf32_hppa_link_hash_entry *hh,
612 struct bfd_link_info *info)
615 bfd_vma branch_offset;
616 bfd_vma max_branch_offset;
620 && hh->eh.plt.offset != (bfd_vma) -1
621 && hh->eh.dynindx != -1
623 && (bfd_link_pic (info)
624 || !hh->eh.def_regular
625 || hh->eh.root.type == bfd_link_hash_defweak))
627 /* We need an import stub. Decide between hppa_stub_import
628 and hppa_stub_import_shared later. */
629 return hppa_stub_import;
632 /* Determine where the call point is. */
633 location = (input_sec->output_offset
634 + input_sec->output_section->vma
637 branch_offset = destination - location - 8;
638 r_type = ELF32_R_TYPE (rela->r_info);
640 /* Determine if a long branch stub is needed. parisc branch offsets
641 are relative to the second instruction past the branch, ie. +8
642 bytes on from the branch instruction location. The offset is
643 signed and counts in units of 4 bytes. */
644 if (r_type == (unsigned int) R_PARISC_PCREL17F)
645 max_branch_offset = (1 << (17 - 1)) << 2;
647 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
648 max_branch_offset = (1 << (12 - 1)) << 2;
650 else /* R_PARISC_PCREL22F. */
651 max_branch_offset = (1 << (22 - 1)) << 2;
653 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
654 return hppa_stub_long_branch;
656 return hppa_stub_none;
659 /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
660 IN_ARG contains the link info pointer. */
662 #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
663 #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
665 #define BL_R1 0xe8200000 /* b,l .+8,%r1 */
666 #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
667 #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
669 #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
670 #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
671 #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
672 #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
674 #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
675 #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
677 #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
678 #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
679 #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
680 #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
682 #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
683 #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
684 #define NOP 0x08000240 /* nop */
685 #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
686 #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
687 #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
694 #define LDW_R1_DLT LDW_R1_R19
696 #define LDW_R1_DLT LDW_R1_DP
700 hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
702 struct elf32_hppa_stub_hash_entry *hsh;
703 struct bfd_link_info *info;
704 struct elf32_hppa_link_hash_table *htab;
714 /* Massage our args to the form they really have. */
715 hsh = hppa_stub_hash_entry (bh);
716 info = (struct bfd_link_info *)in_arg;
718 htab = hppa_link_hash_table (info);
722 stub_sec = hsh->stub_sec;
724 /* Make a note of the offset within the stubs for this entry. */
725 hsh->stub_offset = stub_sec->size;
726 loc = stub_sec->contents + hsh->stub_offset;
728 stub_bfd = stub_sec->owner;
730 switch (hsh->stub_type)
732 case hppa_stub_long_branch:
733 /* Create the long branch. A long branch is formed with "ldil"
734 loading the upper bits of the target address into a register,
735 then branching with "be" which adds in the lower bits.
736 The "be" has its delay slot nullified. */
737 sym_value = (hsh->target_value
738 + hsh->target_section->output_offset
739 + hsh->target_section->output_section->vma);
741 val = hppa_field_adjust (sym_value, 0, e_lrsel);
742 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
743 bfd_put_32 (stub_bfd, insn, loc);
745 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
746 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
747 bfd_put_32 (stub_bfd, insn, loc + 4);
752 case hppa_stub_long_branch_shared:
753 /* Branches are relative. This is where we are going to. */
754 sym_value = (hsh->target_value
755 + hsh->target_section->output_offset
756 + hsh->target_section->output_section->vma);
758 /* And this is where we are coming from, more or less. */
759 sym_value -= (hsh->stub_offset
760 + stub_sec->output_offset
761 + stub_sec->output_section->vma);
763 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
764 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
765 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
766 bfd_put_32 (stub_bfd, insn, loc + 4);
768 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
769 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
770 bfd_put_32 (stub_bfd, insn, loc + 8);
774 case hppa_stub_import:
775 case hppa_stub_import_shared:
776 off = hsh->hh->eh.plt.offset;
777 if (off >= (bfd_vma) -2)
780 off &= ~ (bfd_vma) 1;
782 + htab->etab.splt->output_offset
783 + htab->etab.splt->output_section->vma
784 - elf_gp (htab->etab.splt->output_section->owner));
788 if (hsh->stub_type == hppa_stub_import_shared)
791 val = hppa_field_adjust (sym_value, 0, e_lrsel),
792 insn = hppa_rebuild_insn ((int) insn, val, 21);
793 bfd_put_32 (stub_bfd, insn, loc);
795 /* It is critical to use lrsel/rrsel here because we are using
796 two different offsets (+0 and +4) from sym_value. If we use
797 lsel/rsel then with unfortunate sym_values we will round
798 sym_value+4 up to the next 2k block leading to a mis-match
799 between the lsel and rsel value. */
800 val = hppa_field_adjust (sym_value, 0, e_rrsel);
801 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
802 bfd_put_32 (stub_bfd, insn, loc + 4);
804 if (htab->multi_subspace)
806 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
807 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
808 bfd_put_32 (stub_bfd, insn, loc + 8);
810 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
811 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
812 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
813 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
819 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
820 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
821 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
822 bfd_put_32 (stub_bfd, insn, loc + 12);
829 case hppa_stub_export:
830 /* Branches are relative. This is where we are going to. */
831 sym_value = (hsh->target_value
832 + hsh->target_section->output_offset
833 + hsh->target_section->output_section->vma);
835 /* And this is where we are coming from. */
836 sym_value -= (hsh->stub_offset
837 + stub_sec->output_offset
838 + stub_sec->output_section->vma);
840 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
841 && (!htab->has_22bit_branch
842 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
845 /* xgettext:c-format */
846 (_("%B(%A+%#Lx): cannot reach %s, recompile with -ffunction-sections"),
847 hsh->target_section->owner,
850 hsh->bh_root.string);
851 bfd_set_error (bfd_error_bad_value);
855 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
856 if (!htab->has_22bit_branch)
857 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
859 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
860 bfd_put_32 (stub_bfd, insn, loc);
862 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
863 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
864 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
865 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
866 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
868 /* Point the function symbol at the stub. */
869 hsh->hh->eh.root.u.def.section = stub_sec;
870 hsh->hh->eh.root.u.def.value = stub_sec->size;
880 stub_sec->size += size;
905 /* As above, but don't actually build the stub. Just bump offset so
906 we know stub section sizes. */
909 hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
911 struct elf32_hppa_stub_hash_entry *hsh;
912 struct elf32_hppa_link_hash_table *htab;
915 /* Massage our args to the form they really have. */
916 hsh = hppa_stub_hash_entry (bh);
919 if (hsh->stub_type == hppa_stub_long_branch)
921 else if (hsh->stub_type == hppa_stub_long_branch_shared)
923 else if (hsh->stub_type == hppa_stub_export)
925 else /* hppa_stub_import or hppa_stub_import_shared. */
927 if (htab->multi_subspace)
933 hsh->stub_sec->size += size;
937 /* Return nonzero if ABFD represents an HPPA ELF32 file.
938 Additionally we set the default architecture and machine. */
941 elf32_hppa_object_p (bfd *abfd)
943 Elf_Internal_Ehdr * i_ehdrp;
946 i_ehdrp = elf_elfheader (abfd);
947 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
949 /* GCC on hppa-linux produces binaries with OSABI=GNU,
950 but the kernel produces corefiles with OSABI=SysV. */
951 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
952 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
955 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
957 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
958 but the kernel produces corefiles with OSABI=SysV. */
959 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
960 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
965 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
969 flags = i_ehdrp->e_flags;
970 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
973 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
975 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
977 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
978 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
979 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
984 /* Create the .plt and .got sections, and set up our hash table
985 short-cuts to various dynamic sections. */
988 elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
990 struct elf32_hppa_link_hash_table *htab;
991 struct elf_link_hash_entry *eh;
993 /* Don't try to create the .plt and .got twice. */
994 htab = hppa_link_hash_table (info);
997 if (htab->etab.splt != NULL)
1000 /* Call the generic code to do most of the work. */
1001 if (! _bfd_elf_create_dynamic_sections (abfd, info))
1004 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
1005 application, because __canonicalize_funcptr_for_compare needs it. */
1006 eh = elf_hash_table (info)->hgot;
1007 eh->forced_local = 0;
1008 eh->other = STV_DEFAULT;
1009 return bfd_elf_link_record_dynamic_symbol (info, eh);
1012 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1015 elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
1016 struct elf_link_hash_entry *eh_dir,
1017 struct elf_link_hash_entry *eh_ind)
1019 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
1021 hh_dir = hppa_elf_hash_entry (eh_dir);
1022 hh_ind = hppa_elf_hash_entry (eh_ind);
1024 if (hh_ind->dyn_relocs != NULL
1025 && eh_ind->root.type == bfd_link_hash_indirect)
1027 if (hh_dir->dyn_relocs != NULL)
1029 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1030 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1032 /* Add reloc counts against the indirect sym to the direct sym
1033 list. Merge any entries against the same section. */
1034 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
1036 struct elf32_hppa_dyn_reloc_entry *hdh_q;
1038 for (hdh_q = hh_dir->dyn_relocs;
1040 hdh_q = hdh_q->hdh_next)
1041 if (hdh_q->sec == hdh_p->sec)
1043 #if RELATIVE_DYNRELOCS
1044 hdh_q->relative_count += hdh_p->relative_count;
1046 hdh_q->count += hdh_p->count;
1047 *hdh_pp = hdh_p->hdh_next;
1051 hdh_pp = &hdh_p->hdh_next;
1053 *hdh_pp = hh_dir->dyn_relocs;
1056 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1057 hh_ind->dyn_relocs = NULL;
1060 if (ELIMINATE_COPY_RELOCS
1061 && eh_ind->root.type != bfd_link_hash_indirect
1062 && eh_dir->dynamic_adjusted)
1064 /* If called to transfer flags for a weakdef during processing
1065 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1066 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
1067 if (eh_dir->versioned != versioned_hidden)
1068 eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
1069 eh_dir->ref_regular |= eh_ind->ref_regular;
1070 eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1071 eh_dir->needs_plt |= eh_ind->needs_plt;
1075 if (eh_ind->root.type == bfd_link_hash_indirect)
1077 hh_dir->plabel |= hh_ind->plabel;
1078 hh_dir->tls_type |= hh_ind->tls_type;
1079 hh_ind->tls_type = GOT_UNKNOWN;
1082 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1087 elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1088 int r_type, int is_local ATTRIBUTE_UNUSED)
1090 /* For now we don't support linker optimizations. */
1094 /* Return a pointer to the local GOT, PLT and TLS reference counts
1095 for ABFD. Returns NULL if the storage allocation fails. */
1097 static bfd_signed_vma *
1098 hppa32_elf_local_refcounts (bfd *abfd)
1100 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1101 bfd_signed_vma *local_refcounts;
1103 local_refcounts = elf_local_got_refcounts (abfd);
1104 if (local_refcounts == NULL)
1108 /* Allocate space for local GOT and PLT reference
1109 counts. Done this way to save polluting elf_obj_tdata
1110 with another target specific pointer. */
1111 size = symtab_hdr->sh_info;
1112 size *= 2 * sizeof (bfd_signed_vma);
1113 /* Add in space to store the local GOT TLS types. */
1114 size += symtab_hdr->sh_info;
1115 local_refcounts = bfd_zalloc (abfd, size);
1116 if (local_refcounts == NULL)
1118 elf_local_got_refcounts (abfd) = local_refcounts;
1119 memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1120 symtab_hdr->sh_info);
1122 return local_refcounts;
1126 /* Look through the relocs for a section during the first phase, and
1127 calculate needed space in the global offset table, procedure linkage
1128 table, and dynamic reloc sections. At this point we haven't
1129 necessarily read all the input files. */
1132 elf32_hppa_check_relocs (bfd *abfd,
1133 struct bfd_link_info *info,
1135 const Elf_Internal_Rela *relocs)
1137 Elf_Internal_Shdr *symtab_hdr;
1138 struct elf_link_hash_entry **eh_syms;
1139 const Elf_Internal_Rela *rela;
1140 const Elf_Internal_Rela *rela_end;
1141 struct elf32_hppa_link_hash_table *htab;
1144 if (bfd_link_relocatable (info))
1147 htab = hppa_link_hash_table (info);
1150 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1151 eh_syms = elf_sym_hashes (abfd);
1154 rela_end = relocs + sec->reloc_count;
1155 for (rela = relocs; rela < rela_end; rela++)
1164 unsigned int r_symndx, r_type;
1165 struct elf32_hppa_link_hash_entry *hh;
1168 r_symndx = ELF32_R_SYM (rela->r_info);
1170 if (r_symndx < symtab_hdr->sh_info)
1174 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
1175 while (hh->eh.root.type == bfd_link_hash_indirect
1176 || hh->eh.root.type == bfd_link_hash_warning)
1177 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
1179 /* PR15323, ref flags aren't set for references in the same
1181 hh->eh.root.non_ir_ref_regular = 1;
1184 r_type = ELF32_R_TYPE (rela->r_info);
1185 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
1189 case R_PARISC_DLTIND14F:
1190 case R_PARISC_DLTIND14R:
1191 case R_PARISC_DLTIND21L:
1192 /* This symbol requires a global offset table entry. */
1193 need_entry = NEED_GOT;
1196 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1197 case R_PARISC_PLABEL21L:
1198 case R_PARISC_PLABEL32:
1199 /* If the addend is non-zero, we break badly. */
1200 if (rela->r_addend != 0)
1203 /* If we are creating a shared library, then we need to
1204 create a PLT entry for all PLABELs, because PLABELs with
1205 local symbols may be passed via a pointer to another
1206 object. Additionally, output a dynamic relocation
1207 pointing to the PLT entry.
1209 For executables, the original 32-bit ABI allowed two
1210 different styles of PLABELs (function pointers): For
1211 global functions, the PLABEL word points into the .plt
1212 two bytes past a (function address, gp) pair, and for
1213 local functions the PLABEL points directly at the
1214 function. The magic +2 for the first type allows us to
1215 differentiate between the two. As you can imagine, this
1216 is a real pain when it comes to generating code to call
1217 functions indirectly or to compare function pointers.
1218 We avoid the mess by always pointing a PLABEL into the
1219 .plt, even for local functions. */
1220 need_entry = PLT_PLABEL | NEED_PLT;
1221 if (bfd_link_pic (info))
1222 need_entry |= NEED_DYNREL;
1225 case R_PARISC_PCREL12F:
1226 htab->has_12bit_branch = 1;
1229 case R_PARISC_PCREL17C:
1230 case R_PARISC_PCREL17F:
1231 htab->has_17bit_branch = 1;
1234 case R_PARISC_PCREL22F:
1235 htab->has_22bit_branch = 1;
1237 /* Function calls might need to go through the .plt, and
1238 might require long branch stubs. */
1241 /* We know local syms won't need a .plt entry, and if
1242 they need a long branch stub we can't guarantee that
1243 we can reach the stub. So just flag an error later
1244 if we're doing a shared link and find we need a long
1250 /* Global symbols will need a .plt entry if they remain
1251 global, and in most cases won't need a long branch
1252 stub. Unfortunately, we have to cater for the case
1253 where a symbol is forced local by versioning, or due
1254 to symbolic linking, and we lose the .plt entry. */
1255 need_entry = NEED_PLT;
1256 if (hh->eh.type == STT_PARISC_MILLI)
1261 case R_PARISC_SEGBASE: /* Used to set segment base. */
1262 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
1263 case R_PARISC_PCREL14F: /* PC relative load/store. */
1264 case R_PARISC_PCREL14R:
1265 case R_PARISC_PCREL17R: /* External branches. */
1266 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
1267 case R_PARISC_PCREL32:
1268 /* We don't need to propagate the relocation if linking a
1269 shared object since these are section relative. */
1272 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1273 case R_PARISC_DPREL14R:
1274 case R_PARISC_DPREL21L:
1275 if (bfd_link_pic (info))
1278 /* xgettext:c-format */
1279 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1281 elf_hppa_howto_table[r_type].name);
1282 bfd_set_error (bfd_error_bad_value);
1287 case R_PARISC_DIR17F: /* Used for external branches. */
1288 case R_PARISC_DIR17R:
1289 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1290 case R_PARISC_DIR14R:
1291 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
1292 case R_PARISC_DIR32: /* .word relocs. */
1293 /* We may want to output a dynamic relocation later. */
1294 need_entry = NEED_DYNREL;
1297 /* This relocation describes the C++ object vtable hierarchy.
1298 Reconstruct it for later use during GC. */
1299 case R_PARISC_GNU_VTINHERIT:
1300 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
1304 /* This relocation describes which C++ vtable entries are actually
1305 used. Record for later use during GC. */
1306 case R_PARISC_GNU_VTENTRY:
1307 BFD_ASSERT (hh != NULL);
1309 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
1313 case R_PARISC_TLS_GD21L:
1314 case R_PARISC_TLS_GD14R:
1315 case R_PARISC_TLS_LDM21L:
1316 case R_PARISC_TLS_LDM14R:
1317 need_entry = NEED_GOT;
1320 case R_PARISC_TLS_IE21L:
1321 case R_PARISC_TLS_IE14R:
1322 if (bfd_link_dll (info))
1323 info->flags |= DF_STATIC_TLS;
1324 need_entry = NEED_GOT;
1331 /* Now carry out our orders. */
1332 if (need_entry & NEED_GOT)
1334 int tls_type = GOT_NORMAL;
1340 case R_PARISC_TLS_GD21L:
1341 case R_PARISC_TLS_GD14R:
1342 tls_type = GOT_TLS_GD;
1344 case R_PARISC_TLS_LDM21L:
1345 case R_PARISC_TLS_LDM14R:
1346 tls_type = GOT_TLS_LDM;
1348 case R_PARISC_TLS_IE21L:
1349 case R_PARISC_TLS_IE14R:
1350 tls_type = GOT_TLS_IE;
1354 /* Allocate space for a GOT entry, as well as a dynamic
1355 relocation for this entry. */
1356 if (htab->etab.sgot == NULL)
1358 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
1364 if (tls_type == GOT_TLS_LDM)
1365 htab->tls_ldm_got.refcount += 1;
1367 hh->eh.got.refcount += 1;
1368 hh->tls_type |= tls_type;
1372 bfd_signed_vma *local_got_refcounts;
1374 /* This is a global offset table entry for a local symbol. */
1375 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1376 if (local_got_refcounts == NULL)
1378 if (tls_type == GOT_TLS_LDM)
1379 htab->tls_ldm_got.refcount += 1;
1381 local_got_refcounts[r_symndx] += 1;
1383 hppa_elf_local_got_tls_type (abfd) [r_symndx] |= tls_type;
1387 if (need_entry & NEED_PLT)
1389 /* If we are creating a shared library, and this is a reloc
1390 against a weak symbol or a global symbol in a dynamic
1391 object, then we will be creating an import stub and a
1392 .plt entry for the symbol. Similarly, on a normal link
1393 to symbols defined in a dynamic object we'll need the
1394 import stub and a .plt entry. We don't know yet whether
1395 the symbol is defined or not, so make an entry anyway and
1396 clean up later in adjust_dynamic_symbol. */
1397 if ((sec->flags & SEC_ALLOC) != 0)
1401 hh->eh.needs_plt = 1;
1402 hh->eh.plt.refcount += 1;
1404 /* If this .plt entry is for a plabel, mark it so
1405 that adjust_dynamic_symbol will keep the entry
1406 even if it appears to be local. */
1407 if (need_entry & PLT_PLABEL)
1410 else if (need_entry & PLT_PLABEL)
1412 bfd_signed_vma *local_got_refcounts;
1413 bfd_signed_vma *local_plt_refcounts;
1415 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1416 if (local_got_refcounts == NULL)
1418 local_plt_refcounts = (local_got_refcounts
1419 + symtab_hdr->sh_info);
1420 local_plt_refcounts[r_symndx] += 1;
1425 if ((need_entry & NEED_DYNREL) != 0
1426 && (sec->flags & SEC_ALLOC) != 0)
1428 /* Flag this symbol as having a non-got, non-plt reference
1429 so that we generate copy relocs if it turns out to be
1431 if (hh != NULL && !bfd_link_pic (info))
1432 hh->eh.non_got_ref = 1;
1434 /* If we are creating a shared library then we need to copy
1435 the reloc into the shared library. However, if we are
1436 linking with -Bsymbolic, we need only copy absolute
1437 relocs or relocs against symbols that are not defined in
1438 an object we are including in the link. PC- or DP- or
1439 DLT-relative relocs against any local sym or global sym
1440 with DEF_REGULAR set, can be discarded. At this point we
1441 have not seen all the input files, so it is possible that
1442 DEF_REGULAR is not set now but will be set later (it is
1443 never cleared). We account for that possibility below by
1444 storing information in the dyn_relocs field of the
1447 A similar situation to the -Bsymbolic case occurs when
1448 creating shared libraries and symbol visibility changes
1449 render the symbol local.
1451 As it turns out, all the relocs we will be creating here
1452 are absolute, so we cannot remove them on -Bsymbolic
1453 links or visibility changes anyway. A STUB_REL reloc
1454 is absolute too, as in that case it is the reloc in the
1455 stub we will be creating, rather than copying the PCREL
1456 reloc in the branch.
1458 If on the other hand, we are creating an executable, we
1459 may need to keep relocations for symbols satisfied by a
1460 dynamic library if we manage to avoid copy relocs for the
1462 if ((bfd_link_pic (info)
1463 && (IS_ABSOLUTE_RELOC (r_type)
1465 && (!SYMBOLIC_BIND (info, &hh->eh)
1466 || hh->eh.root.type == bfd_link_hash_defweak
1467 || !hh->eh.def_regular))))
1468 || (ELIMINATE_COPY_RELOCS
1469 && !bfd_link_pic (info)
1471 && (hh->eh.root.type == bfd_link_hash_defweak
1472 || !hh->eh.def_regular)))
1474 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1475 struct elf32_hppa_dyn_reloc_entry **hdh_head;
1477 /* Create a reloc section in dynobj and make room for
1481 sreloc = _bfd_elf_make_dynamic_reloc_section
1482 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1486 bfd_set_error (bfd_error_bad_value);
1491 /* If this is a global symbol, we count the number of
1492 relocations we need for this symbol. */
1495 hdh_head = &hh->dyn_relocs;
1499 /* Track dynamic relocs needed for local syms too.
1500 We really need local syms available to do this
1504 Elf_Internal_Sym *isym;
1506 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1511 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1515 vpp = &elf_section_data (sr)->local_dynrel;
1516 hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
1520 if (hdh_p == NULL || hdh_p->sec != sec)
1522 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
1525 hdh_p->hdh_next = *hdh_head;
1529 #if RELATIVE_DYNRELOCS
1530 hdh_p->relative_count = 0;
1535 #if RELATIVE_DYNRELOCS
1536 if (!IS_ABSOLUTE_RELOC (rtype))
1537 hdh_p->relative_count += 1;
1546 /* Return the section that should be marked against garbage collection
1547 for a given relocation. */
1550 elf32_hppa_gc_mark_hook (asection *sec,
1551 struct bfd_link_info *info,
1552 Elf_Internal_Rela *rela,
1553 struct elf_link_hash_entry *hh,
1554 Elf_Internal_Sym *sym)
1557 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1559 case R_PARISC_GNU_VTINHERIT:
1560 case R_PARISC_GNU_VTENTRY:
1564 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
1567 /* Support for core dump NOTE sections. */
1570 elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1575 switch (note->descsz)
1580 case 396: /* Linux/hppa */
1582 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
1585 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
1594 /* Make a ".reg/999" section. */
1595 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1596 size, note->descpos + offset);
1600 elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1602 switch (note->descsz)
1607 case 124: /* Linux/hppa elf_prpsinfo. */
1608 elf_tdata (abfd)->core->program
1609 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
1610 elf_tdata (abfd)->core->command
1611 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1614 /* Note that for some reason, a spurious space is tacked
1615 onto the end of the args in some (at least one anyway)
1616 implementations, so strip it off if it exists. */
1618 char *command = elf_tdata (abfd)->core->command;
1619 int n = strlen (command);
1621 if (0 < n && command[n - 1] == ' ')
1622 command[n - 1] = '\0';
1628 /* Our own version of hide_symbol, so that we can keep plt entries for
1632 elf32_hppa_hide_symbol (struct bfd_link_info *info,
1633 struct elf_link_hash_entry *eh,
1634 bfd_boolean force_local)
1638 eh->forced_local = 1;
1639 if (eh->dynindx != -1)
1642 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1646 /* PR 16082: Remove version information from hidden symbol. */
1647 eh->verinfo.verdef = NULL;
1648 eh->verinfo.vertree = NULL;
1651 /* STT_GNU_IFUNC symbol must go through PLT. */
1652 if (! hppa_elf_hash_entry (eh)->plabel
1653 && eh->type != STT_GNU_IFUNC)
1656 eh->plt = elf_hash_table (info)->init_plt_offset;
1660 /* Find any dynamic relocs that apply to read-only sections. */
1663 readonly_dynrelocs (struct elf_link_hash_entry *eh)
1665 struct elf32_hppa_link_hash_entry *hh;
1666 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1668 hh = hppa_elf_hash_entry (eh);
1669 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
1671 asection *sec = hdh_p->sec->output_section;
1673 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
1679 /* Return true if we have dynamic relocs against H or any of its weak
1680 aliases, that apply to read-only sections. Cannot be used after
1681 size_dynamic_sections. */
1684 alias_readonly_dynrelocs (struct elf_link_hash_entry *eh)
1686 struct elf32_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
1689 if (readonly_dynrelocs (&hh->eh))
1691 hh = hppa_elf_hash_entry (hh->eh.u.alias);
1692 } while (hh != NULL && &hh->eh != eh);
1697 /* Adjust a symbol defined by a dynamic object and referenced by a
1698 regular object. The current definition is in some section of the
1699 dynamic object, but we're not including those sections. We have to
1700 change the definition to something the rest of the link can
1704 elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
1705 struct elf_link_hash_entry *eh)
1707 struct elf32_hppa_link_hash_table *htab;
1708 asection *sec, *srel;
1710 /* If this is a function, put it in the procedure linkage table. We
1711 will fill in the contents of the procedure linkage table later. */
1712 if (eh->type == STT_FUNC
1715 bfd_boolean local = (SYMBOL_CALLS_LOCAL (info, eh)
1716 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh));
1717 /* Discard dyn_relocs when non-pic if we've decided that a
1718 function symbol is local. */
1719 if (!bfd_link_pic (info) && local)
1720 hppa_elf_hash_entry (eh)->dyn_relocs = NULL;
1722 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1723 The refcounts are not reliable when it has been hidden since
1724 hide_symbol can be called before the plabel flag is set. */
1725 if (hppa_elf_hash_entry (eh)->plabel)
1726 eh->plt.refcount = 1;
1728 /* Note that unlike some other backends, the refcount is not
1729 incremented for a non-call (and non-plabel) function reference. */
1730 else if (eh->plt.refcount <= 0
1733 /* The .plt entry is not needed when:
1734 a) Garbage collection has removed all references to the
1736 b) We know for certain the symbol is defined in this
1737 object, and it's not a weak definition, nor is the symbol
1738 used by a plabel relocation. Either this object is the
1739 application or we are doing a shared symbolic link. */
1740 eh->plt.offset = (bfd_vma) -1;
1744 /* Unlike other targets, elf32-hppa.c does not define a function
1745 symbol in a non-pic executable on PLT stub code, so we don't
1746 have a local definition in that case. ie. dyn_relocs can't
1749 /* Function symbols can't have copy relocs. */
1753 eh->plt.offset = (bfd_vma) -1;
1755 /* If this is a weak symbol, and there is a real definition, the
1756 processor independent code will have arranged for us to see the
1757 real definition first, and we can just use the same value. */
1758 if (eh->is_weakalias)
1760 struct elf_link_hash_entry *def = weakdef (eh);
1761 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1762 eh->root.u.def.section = def->root.u.def.section;
1763 eh->root.u.def.value = def->root.u.def.value;
1764 if (ELIMINATE_COPY_RELOCS)
1765 eh->non_got_ref = def->non_got_ref;
1769 /* This is a reference to a symbol defined by a dynamic object which
1770 is not a function. */
1772 /* If we are creating a shared library, we must presume that the
1773 only references to the symbol are via the global offset table.
1774 For such cases we need not do anything here; the relocations will
1775 be handled correctly by relocate_section. */
1776 if (bfd_link_pic (info))
1779 /* If there are no references to this symbol that do not use the
1780 GOT, we don't need to generate a copy reloc. */
1781 if (!eh->non_got_ref)
1784 /* If -z nocopyreloc was given, we won't generate them either. */
1785 if (info->nocopyreloc)
1788 if (ELIMINATE_COPY_RELOCS
1789 && !alias_readonly_dynrelocs (eh))
1791 /* If we didn't find any dynamic relocs in read-only sections, then
1792 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1796 /* We must allocate the symbol in our .dynbss section, which will
1797 become part of the .bss section of the executable. There will be
1798 an entry for this symbol in the .dynsym section. The dynamic
1799 object will contain position independent code, so all references
1800 from the dynamic object to this symbol will go through the global
1801 offset table. The dynamic linker will use the .dynsym entry to
1802 determine the address it must put in the global offset table, so
1803 both the dynamic object and the regular object will refer to the
1804 same memory location for the variable. */
1806 htab = hppa_link_hash_table (info);
1810 /* We must generate a COPY reloc to tell the dynamic linker to
1811 copy the initial value out of the dynamic object and into the
1812 runtime process image. */
1813 if ((eh->root.u.def.section->flags & SEC_READONLY) != 0)
1815 sec = htab->etab.sdynrelro;
1816 srel = htab->etab.sreldynrelro;
1820 sec = htab->etab.sdynbss;
1821 srel = htab->etab.srelbss;
1823 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
1825 srel->size += sizeof (Elf32_External_Rela);
1829 /* We no longer want dyn_relocs. */
1830 hppa_elf_hash_entry (eh)->dyn_relocs = NULL;
1831 return _bfd_elf_adjust_dynamic_copy (info, eh, sec);
1834 /* If EH is undefined, make it dynamic if that makes sense. */
1837 ensure_undef_dynamic (struct bfd_link_info *info,
1838 struct elf_link_hash_entry *eh)
1840 struct elf_link_hash_table *htab = elf_hash_table (info);
1842 if (htab->dynamic_sections_created
1843 && (eh->root.type == bfd_link_hash_undefweak
1844 || eh->root.type == bfd_link_hash_undefined)
1845 && eh->dynindx == -1
1846 && !eh->forced_local
1847 && eh->type != STT_PARISC_MILLI
1848 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)
1849 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT)
1850 return bfd_elf_link_record_dynamic_symbol (info, eh);
1854 /* Allocate space in the .plt for entries that won't have relocations.
1855 ie. plabel entries. */
1858 allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
1860 struct bfd_link_info *info;
1861 struct elf32_hppa_link_hash_table *htab;
1862 struct elf32_hppa_link_hash_entry *hh;
1865 if (eh->root.type == bfd_link_hash_indirect)
1868 info = (struct bfd_link_info *) inf;
1869 hh = hppa_elf_hash_entry (eh);
1870 htab = hppa_link_hash_table (info);
1874 if (htab->etab.dynamic_sections_created
1875 && eh->plt.refcount > 0)
1877 if (!ensure_undef_dynamic (info, eh))
1880 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh))
1882 /* Allocate these later. From this point on, h->plabel
1883 means that the plt entry is only used by a plabel.
1884 We'll be using a normal plt entry for this symbol, so
1885 clear the plabel indicator. */
1889 else if (hh->plabel)
1891 /* Make an entry in the .plt section for plabel references
1892 that won't have a .plt entry for other reasons. */
1893 sec = htab->etab.splt;
1894 eh->plt.offset = sec->size;
1895 sec->size += PLT_ENTRY_SIZE;
1896 if (bfd_link_pic (info))
1897 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
1901 /* No .plt entry needed. */
1902 eh->plt.offset = (bfd_vma) -1;
1908 eh->plt.offset = (bfd_vma) -1;
1915 /* Calculate size of GOT entries for symbol given its TLS_TYPE. */
1917 static inline unsigned int
1918 got_entries_needed (int tls_type)
1920 unsigned int need = 0;
1922 if ((tls_type & GOT_NORMAL) != 0)
1923 need += GOT_ENTRY_SIZE;
1924 if ((tls_type & GOT_TLS_GD) != 0)
1925 need += GOT_ENTRY_SIZE * 2;
1926 if ((tls_type & GOT_TLS_IE) != 0)
1927 need += GOT_ENTRY_SIZE;
1931 /* Calculate size of relocs needed for symbol given its TLS_TYPE and
1932 NEEDed GOT entries. KNOWN says a TPREL offset can be calculated
1935 static inline unsigned int
1936 got_relocs_needed (int tls_type, unsigned int need, bfd_boolean known)
1938 /* All the entries we allocated need relocs.
1939 Except IE in executable with a local symbol. We could also omit
1940 the DTPOFF reloc on the second word of a GD entry under the same
1941 condition as that for IE, but ld.so might want to differentiate
1942 LD and GD entries at some stage. */
1943 if ((tls_type & GOT_TLS_IE) != 0 && known)
1944 need -= GOT_ENTRY_SIZE;
1945 return need * sizeof (Elf32_External_Rela) / GOT_ENTRY_SIZE;
1948 /* Allocate space in .plt, .got and associated reloc sections for
1952 allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
1954 struct bfd_link_info *info;
1955 struct elf32_hppa_link_hash_table *htab;
1957 struct elf32_hppa_link_hash_entry *hh;
1958 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1960 if (eh->root.type == bfd_link_hash_indirect)
1964 htab = hppa_link_hash_table (info);
1968 hh = hppa_elf_hash_entry (eh);
1970 if (htab->etab.dynamic_sections_created
1971 && eh->plt.offset != (bfd_vma) -1
1973 && eh->plt.refcount > 0)
1975 /* Make an entry in the .plt section. */
1976 sec = htab->etab.splt;
1977 eh->plt.offset = sec->size;
1978 sec->size += PLT_ENTRY_SIZE;
1980 /* We also need to make an entry in the .rela.plt section. */
1981 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
1982 htab->need_plt_stub = 1;
1985 if (eh->got.refcount > 0)
1989 if (!ensure_undef_dynamic (info, eh))
1992 sec = htab->etab.sgot;
1993 eh->got.offset = sec->size;
1994 need = got_entries_needed (hh->tls_type);
1996 if (htab->etab.dynamic_sections_created
1997 && (bfd_link_pic (info)
1998 || (eh->dynindx != -1
1999 && !SYMBOL_REFERENCES_LOCAL (info, eh)))
2000 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
2002 bfd_boolean tprel_known = (bfd_link_executable (info)
2003 && SYMBOL_REFERENCES_LOCAL (info, eh));
2004 htab->etab.srelgot->size
2005 += got_relocs_needed (hh->tls_type, need, tprel_known);
2009 eh->got.offset = (bfd_vma) -1;
2011 /* If no dynamic sections we can't have dynamic relocs. */
2012 if (!htab->etab.dynamic_sections_created)
2013 hh->dyn_relocs = NULL;
2015 /* Discard relocs on undefined syms with non-default visibility. */
2016 else if ((eh->root.type == bfd_link_hash_undefined
2017 && ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2018 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
2019 hh->dyn_relocs = NULL;
2021 if (hh->dyn_relocs == NULL)
2024 /* If this is a -Bsymbolic shared link, then we need to discard all
2025 space allocated for dynamic pc-relative relocs against symbols
2026 defined in a regular object. For the normal shared case, discard
2027 space for relocs that have become local due to symbol visibility
2029 if (bfd_link_pic (info))
2031 #if RELATIVE_DYNRELOCS
2032 if (SYMBOL_CALLS_LOCAL (info, eh))
2034 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
2036 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
2038 hdh_p->count -= hdh_p->relative_count;
2039 hdh_p->relative_count = 0;
2040 if (hdh_p->count == 0)
2041 *hdh_pp = hdh_p->hdh_next;
2043 hdh_pp = &hdh_p->hdh_next;
2048 if (hh->dyn_relocs != NULL)
2050 if (!ensure_undef_dynamic (info, eh))
2054 else if (ELIMINATE_COPY_RELOCS)
2056 /* For the non-shared case, discard space for relocs against
2057 symbols which turn out to need copy relocs or are not
2060 if (eh->dynamic_adjusted
2062 && !ELF_COMMON_DEF_P (eh))
2064 if (!ensure_undef_dynamic (info, eh))
2067 if (eh->dynindx == -1)
2068 hh->dyn_relocs = NULL;
2071 hh->dyn_relocs = NULL;
2074 /* Finally, allocate space. */
2075 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
2077 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2078 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
2084 /* This function is called via elf_link_hash_traverse to force
2085 millicode symbols local so they do not end up as globals in the
2086 dynamic symbol table. We ought to be able to do this in
2087 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2088 for all dynamic symbols. Arguably, this is a bug in
2089 elf_adjust_dynamic_symbol. */
2092 clobber_millicode_symbols (struct elf_link_hash_entry *eh,
2093 struct bfd_link_info *info)
2095 if (eh->type == STT_PARISC_MILLI
2096 && !eh->forced_local)
2098 elf32_hppa_hide_symbol (info, eh, TRUE);
2103 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2104 read-only sections. */
2107 maybe_set_textrel (struct elf_link_hash_entry *eh, void *inf)
2111 if (eh->root.type == bfd_link_hash_indirect)
2114 sec = readonly_dynrelocs (eh);
2117 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2119 info->flags |= DF_TEXTREL;
2120 info->callbacks->minfo
2121 (_("%B: dynamic relocation in read-only section `%A'\n"),
2124 /* Not an error, just cut short the traversal. */
2130 /* Set the sizes of the dynamic sections. */
2133 elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2134 struct bfd_link_info *info)
2136 struct elf32_hppa_link_hash_table *htab;
2142 htab = hppa_link_hash_table (info);
2146 dynobj = htab->etab.dynobj;
2150 if (htab->etab.dynamic_sections_created)
2152 /* Set the contents of the .interp section to the interpreter. */
2153 if (bfd_link_executable (info) && !info->nointerp)
2155 sec = bfd_get_linker_section (dynobj, ".interp");
2158 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2159 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2162 /* Force millicode symbols local. */
2163 elf_link_hash_traverse (&htab->etab,
2164 clobber_millicode_symbols,
2168 /* Set up .got and .plt offsets for local syms, and space for local
2170 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2172 bfd_signed_vma *local_got;
2173 bfd_signed_vma *end_local_got;
2174 bfd_signed_vma *local_plt;
2175 bfd_signed_vma *end_local_plt;
2176 bfd_size_type locsymcount;
2177 Elf_Internal_Shdr *symtab_hdr;
2179 char *local_tls_type;
2181 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2184 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
2186 struct elf32_hppa_dyn_reloc_entry *hdh_p;
2188 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2189 elf_section_data (sec)->local_dynrel);
2191 hdh_p = hdh_p->hdh_next)
2193 if (!bfd_is_abs_section (hdh_p->sec)
2194 && bfd_is_abs_section (hdh_p->sec->output_section))
2196 /* Input section has been discarded, either because
2197 it is a copy of a linkonce section or due to
2198 linker script /DISCARD/, so we'll be discarding
2201 else if (hdh_p->count != 0)
2203 srel = elf_section_data (hdh_p->sec)->sreloc;
2204 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2205 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
2206 info->flags |= DF_TEXTREL;
2211 local_got = elf_local_got_refcounts (ibfd);
2215 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2216 locsymcount = symtab_hdr->sh_info;
2217 end_local_got = local_got + locsymcount;
2218 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
2219 sec = htab->etab.sgot;
2220 srel = htab->etab.srelgot;
2221 for (; local_got < end_local_got; ++local_got)
2227 *local_got = sec->size;
2228 need = got_entries_needed (*local_tls_type);
2230 if (bfd_link_pic (info))
2232 bfd_boolean tprel_known = bfd_link_executable (info);
2233 htab->etab.srelgot->size
2234 += got_relocs_needed (*local_tls_type, need, tprel_known);
2238 *local_got = (bfd_vma) -1;
2243 local_plt = end_local_got;
2244 end_local_plt = local_plt + locsymcount;
2245 if (! htab->etab.dynamic_sections_created)
2247 /* Won't be used, but be safe. */
2248 for (; local_plt < end_local_plt; ++local_plt)
2249 *local_plt = (bfd_vma) -1;
2253 sec = htab->etab.splt;
2254 srel = htab->etab.srelplt;
2255 for (; local_plt < end_local_plt; ++local_plt)
2259 *local_plt = sec->size;
2260 sec->size += PLT_ENTRY_SIZE;
2261 if (bfd_link_pic (info))
2262 srel->size += sizeof (Elf32_External_Rela);
2265 *local_plt = (bfd_vma) -1;
2270 if (htab->tls_ldm_got.refcount > 0)
2272 /* Allocate 2 got entries and 1 dynamic reloc for
2273 R_PARISC_TLS_DTPMOD32 relocs. */
2274 htab->tls_ldm_got.offset = htab->etab.sgot->size;
2275 htab->etab.sgot->size += (GOT_ENTRY_SIZE * 2);
2276 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
2279 htab->tls_ldm_got.offset = -1;
2281 /* Do all the .plt entries without relocs first. The dynamic linker
2282 uses the last .plt reloc to find the end of the .plt (and hence
2283 the start of the .got) for lazy linking. */
2284 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
2286 /* Allocate global sym .plt and .got entries, and space for global
2287 sym dynamic relocs. */
2288 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
2290 /* The check_relocs and adjust_dynamic_symbol entry points have
2291 determined the sizes of the various dynamic sections. Allocate
2294 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
2296 if ((sec->flags & SEC_LINKER_CREATED) == 0)
2299 if (sec == htab->etab.splt)
2301 if (htab->need_plt_stub)
2303 /* Make space for the plt stub at the end of the .plt
2304 section. We want this stub right at the end, up
2305 against the .got section. */
2306 int gotalign = bfd_section_alignment (dynobj, htab->etab.sgot);
2307 int pltalign = bfd_section_alignment (dynobj, sec);
2310 if (gotalign > pltalign)
2311 (void) bfd_set_section_alignment (dynobj, sec, gotalign);
2312 mask = ((bfd_size_type) 1 << gotalign) - 1;
2313 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
2316 else if (sec == htab->etab.sgot
2317 || sec == htab->etab.sdynbss
2318 || sec == htab->etab.sdynrelro)
2320 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
2324 /* Remember whether there are any reloc sections other
2326 if (sec != htab->etab.srelplt)
2329 /* We use the reloc_count field as a counter if we need
2330 to copy relocs into the output file. */
2331 sec->reloc_count = 0;
2336 /* It's not one of our sections, so don't allocate space. */
2342 /* If we don't need this section, strip it from the
2343 output file. This is mostly to handle .rela.bss and
2344 .rela.plt. We must create both sections in
2345 create_dynamic_sections, because they must be created
2346 before the linker maps input sections to output
2347 sections. The linker does that before
2348 adjust_dynamic_symbol is called, and it is that
2349 function which decides whether anything needs to go
2350 into these sections. */
2351 sec->flags |= SEC_EXCLUDE;
2355 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2358 /* Allocate memory for the section contents. Zero it, because
2359 we may not fill in all the reloc sections. */
2360 sec->contents = bfd_zalloc (dynobj, sec->size);
2361 if (sec->contents == NULL)
2365 if (htab->etab.dynamic_sections_created)
2367 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2368 actually has nothing to do with the PLT, it is how we
2369 communicate the LTP value of a load module to the dynamic
2371 #define add_dynamic_entry(TAG, VAL) \
2372 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2374 if (!add_dynamic_entry (DT_PLTGOT, 0))
2377 /* Add some entries to the .dynamic section. We fill in the
2378 values later, in elf32_hppa_finish_dynamic_sections, but we
2379 must add the entries now so that we get the correct size for
2380 the .dynamic section. The DT_DEBUG entry is filled in by the
2381 dynamic linker and used by the debugger. */
2382 if (bfd_link_executable (info))
2384 if (!add_dynamic_entry (DT_DEBUG, 0))
2388 if (htab->etab.srelplt->size != 0)
2390 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2391 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2392 || !add_dynamic_entry (DT_JMPREL, 0))
2398 if (!add_dynamic_entry (DT_RELA, 0)
2399 || !add_dynamic_entry (DT_RELASZ, 0)
2400 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
2403 /* If any dynamic relocs apply to a read-only section,
2404 then we need a DT_TEXTREL entry. */
2405 if ((info->flags & DF_TEXTREL) == 0)
2406 elf_link_hash_traverse (&htab->etab, maybe_set_textrel, info);
2408 if ((info->flags & DF_TEXTREL) != 0)
2410 if (!add_dynamic_entry (DT_TEXTREL, 0))
2415 #undef add_dynamic_entry
2420 /* External entry points for sizing and building linker stubs. */
2422 /* Set up various things so that we can make a list of input sections
2423 for each output section included in the link. Returns -1 on error,
2424 0 when no stubs will be needed, and 1 on success. */
2427 elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
2430 unsigned int bfd_count;
2431 unsigned int top_id, top_index;
2433 asection **input_list, **list;
2435 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2440 /* Count the number of input BFDs and find the top input section id. */
2441 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
2443 input_bfd = input_bfd->link.next)
2446 for (section = input_bfd->sections;
2448 section = section->next)
2450 if (top_id < section->id)
2451 top_id = section->id;
2454 htab->bfd_count = bfd_count;
2456 amt = sizeof (struct map_stub) * (top_id + 1);
2457 htab->stub_group = bfd_zmalloc (amt);
2458 if (htab->stub_group == NULL)
2461 /* We can't use output_bfd->section_count here to find the top output
2462 section index as some sections may have been removed, and
2463 strip_excluded_output_sections doesn't renumber the indices. */
2464 for (section = output_bfd->sections, top_index = 0;
2466 section = section->next)
2468 if (top_index < section->index)
2469 top_index = section->index;
2472 htab->top_index = top_index;
2473 amt = sizeof (asection *) * (top_index + 1);
2474 input_list = bfd_malloc (amt);
2475 htab->input_list = input_list;
2476 if (input_list == NULL)
2479 /* For sections we aren't interested in, mark their entries with a
2480 value we can check later. */
2481 list = input_list + top_index;
2483 *list = bfd_abs_section_ptr;
2484 while (list-- != input_list);
2486 for (section = output_bfd->sections;
2488 section = section->next)
2490 if ((section->flags & SEC_CODE) != 0)
2491 input_list[section->index] = NULL;
2497 /* The linker repeatedly calls this function for each input section,
2498 in the order that input sections are linked into output sections.
2499 Build lists of input sections to determine groupings between which
2500 we may insert linker stubs. */
2503 elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
2505 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2510 if (isec->output_section->index <= htab->top_index)
2512 asection **list = htab->input_list + isec->output_section->index;
2513 if (*list != bfd_abs_section_ptr)
2515 /* Steal the link_sec pointer for our list. */
2516 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2517 /* This happens to make the list in reverse order,
2518 which is what we want. */
2519 PREV_SEC (isec) = *list;
2525 /* See whether we can group stub sections together. Grouping stub
2526 sections may result in fewer stubs. More importantly, we need to
2527 put all .init* and .fini* stubs at the beginning of the .init or
2528 .fini output sections respectively, because glibc splits the
2529 _init and _fini functions into multiple parts. Putting a stub in
2530 the middle of a function is not a good idea. */
2533 group_sections (struct elf32_hppa_link_hash_table *htab,
2534 bfd_size_type stub_group_size,
2535 bfd_boolean stubs_always_before_branch)
2537 asection **list = htab->input_list + htab->top_index;
2540 asection *tail = *list;
2541 if (tail == bfd_abs_section_ptr)
2543 while (tail != NULL)
2547 bfd_size_type total;
2548 bfd_boolean big_sec;
2552 big_sec = total >= stub_group_size;
2554 while ((prev = PREV_SEC (curr)) != NULL
2555 && ((total += curr->output_offset - prev->output_offset)
2559 /* OK, the size from the start of CURR to the end is less
2560 than 240000 bytes and thus can be handled by one stub
2561 section. (or the tail section is itself larger than
2562 240000 bytes, in which case we may be toast.)
2563 We should really be keeping track of the total size of
2564 stubs added here, as stubs contribute to the final output
2565 section size. That's a little tricky, and this way will
2566 only break if stubs added total more than 22144 bytes, or
2567 2768 long branch stubs. It seems unlikely for more than
2568 2768 different functions to be called, especially from
2569 code only 240000 bytes long. This limit used to be
2570 250000, but c++ code tends to generate lots of little
2571 functions, and sometimes violated the assumption. */
2574 prev = PREV_SEC (tail);
2575 /* Set up this stub group. */
2576 htab->stub_group[tail->id].link_sec = curr;
2578 while (tail != curr && (tail = prev) != NULL);
2580 /* But wait, there's more! Input sections up to 240000
2581 bytes before the stub section can be handled by it too.
2582 Don't do this if we have a really large section after the
2583 stubs, as adding more stubs increases the chance that
2584 branches may not reach into the stub section. */
2585 if (!stubs_always_before_branch && !big_sec)
2589 && ((total += tail->output_offset - prev->output_offset)
2593 prev = PREV_SEC (tail);
2594 htab->stub_group[tail->id].link_sec = curr;
2600 while (list-- != htab->input_list);
2601 free (htab->input_list);
2605 /* Read in all local syms for all input bfds, and create hash entries
2606 for export stubs if we are building a multi-subspace shared lib.
2607 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2610 get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
2612 unsigned int bfd_indx;
2613 Elf_Internal_Sym *local_syms, **all_local_syms;
2614 int stub_changed = 0;
2615 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2620 /* We want to read in symbol extension records only once. To do this
2621 we need to read in the local symbols in parallel and save them for
2622 later use; so hold pointers to the local symbols in an array. */
2623 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
2624 all_local_syms = bfd_zmalloc (amt);
2625 htab->all_local_syms = all_local_syms;
2626 if (all_local_syms == NULL)
2629 /* Walk over all the input BFDs, swapping in local symbols.
2630 If we are creating a shared library, create hash entries for the
2634 input_bfd = input_bfd->link.next, bfd_indx++)
2636 Elf_Internal_Shdr *symtab_hdr;
2638 /* We'll need the symbol table in a second. */
2639 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2640 if (symtab_hdr->sh_info == 0)
2643 /* We need an array of the local symbols attached to the input bfd. */
2644 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
2645 if (local_syms == NULL)
2647 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2648 symtab_hdr->sh_info, 0,
2650 /* Cache them for elf_link_input_bfd. */
2651 symtab_hdr->contents = (unsigned char *) local_syms;
2653 if (local_syms == NULL)
2656 all_local_syms[bfd_indx] = local_syms;
2658 if (bfd_link_pic (info) && htab->multi_subspace)
2660 struct elf_link_hash_entry **eh_syms;
2661 struct elf_link_hash_entry **eh_symend;
2662 unsigned int symcount;
2664 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2665 - symtab_hdr->sh_info);
2666 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2667 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
2669 /* Look through the global syms for functions; We need to
2670 build export stubs for all globally visible functions. */
2671 for (; eh_syms < eh_symend; eh_syms++)
2673 struct elf32_hppa_link_hash_entry *hh;
2675 hh = hppa_elf_hash_entry (*eh_syms);
2677 while (hh->eh.root.type == bfd_link_hash_indirect
2678 || hh->eh.root.type == bfd_link_hash_warning)
2679 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2681 /* At this point in the link, undefined syms have been
2682 resolved, so we need to check that the symbol was
2683 defined in this BFD. */
2684 if ((hh->eh.root.type == bfd_link_hash_defined
2685 || hh->eh.root.type == bfd_link_hash_defweak)
2686 && hh->eh.type == STT_FUNC
2687 && hh->eh.root.u.def.section->output_section != NULL
2688 && (hh->eh.root.u.def.section->output_section->owner
2690 && hh->eh.root.u.def.section->owner == input_bfd
2691 && hh->eh.def_regular
2692 && !hh->eh.forced_local
2693 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
2696 const char *stub_name;
2697 struct elf32_hppa_stub_hash_entry *hsh;
2699 sec = hh->eh.root.u.def.section;
2700 stub_name = hh_name (hh);
2701 hsh = hppa_stub_hash_lookup (&htab->bstab,
2706 hsh = hppa_add_stub (stub_name, sec, htab);
2710 hsh->target_value = hh->eh.root.u.def.value;
2711 hsh->target_section = hh->eh.root.u.def.section;
2712 hsh->stub_type = hppa_stub_export;
2718 /* xgettext:c-format */
2719 _bfd_error_handler (_("%B: duplicate export stub %s"),
2720 input_bfd, stub_name);
2727 return stub_changed;
2730 /* Determine and set the size of the stub section for a final link.
2732 The basic idea here is to examine all the relocations looking for
2733 PC-relative calls to a target that is unreachable with a "bl"
2737 elf32_hppa_size_stubs
2738 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2739 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2740 asection * (*add_stub_section) (const char *, asection *),
2741 void (*layout_sections_again) (void))
2743 bfd_size_type stub_group_size;
2744 bfd_boolean stubs_always_before_branch;
2745 bfd_boolean stub_changed;
2746 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2751 /* Stash our params away. */
2752 htab->stub_bfd = stub_bfd;
2753 htab->multi_subspace = multi_subspace;
2754 htab->add_stub_section = add_stub_section;
2755 htab->layout_sections_again = layout_sections_again;
2756 stubs_always_before_branch = group_size < 0;
2758 stub_group_size = -group_size;
2760 stub_group_size = group_size;
2761 if (stub_group_size == 1)
2763 /* Default values. */
2764 if (stubs_always_before_branch)
2766 stub_group_size = 7680000;
2767 if (htab->has_17bit_branch || htab->multi_subspace)
2768 stub_group_size = 240000;
2769 if (htab->has_12bit_branch)
2770 stub_group_size = 7500;
2774 stub_group_size = 6971392;
2775 if (htab->has_17bit_branch || htab->multi_subspace)
2776 stub_group_size = 217856;
2777 if (htab->has_12bit_branch)
2778 stub_group_size = 6808;
2782 group_sections (htab, stub_group_size, stubs_always_before_branch);
2784 switch (get_local_syms (output_bfd, info->input_bfds, info))
2787 if (htab->all_local_syms)
2788 goto error_ret_free_local;
2792 stub_changed = FALSE;
2796 stub_changed = TRUE;
2803 unsigned int bfd_indx;
2806 for (input_bfd = info->input_bfds, bfd_indx = 0;
2808 input_bfd = input_bfd->link.next, bfd_indx++)
2810 Elf_Internal_Shdr *symtab_hdr;
2812 Elf_Internal_Sym *local_syms;
2814 /* We'll need the symbol table in a second. */
2815 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2816 if (symtab_hdr->sh_info == 0)
2819 local_syms = htab->all_local_syms[bfd_indx];
2821 /* Walk over each section attached to the input bfd. */
2822 for (section = input_bfd->sections;
2824 section = section->next)
2826 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2828 /* If there aren't any relocs, then there's nothing more
2830 if ((section->flags & SEC_RELOC) == 0
2831 || section->reloc_count == 0)
2834 /* If this section is a link-once section that will be
2835 discarded, then don't create any stubs. */
2836 if (section->output_section == NULL
2837 || section->output_section->owner != output_bfd)
2840 /* Get the relocs. */
2842 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
2844 if (internal_relocs == NULL)
2845 goto error_ret_free_local;
2847 /* Now examine each relocation. */
2848 irela = internal_relocs;
2849 irelaend = irela + section->reloc_count;
2850 for (; irela < irelaend; irela++)
2852 unsigned int r_type, r_indx;
2853 enum elf32_hppa_stub_type stub_type;
2854 struct elf32_hppa_stub_hash_entry *hsh;
2857 bfd_vma destination;
2858 struct elf32_hppa_link_hash_entry *hh;
2860 const asection *id_sec;
2862 r_type = ELF32_R_TYPE (irela->r_info);
2863 r_indx = ELF32_R_SYM (irela->r_info);
2865 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2867 bfd_set_error (bfd_error_bad_value);
2868 error_ret_free_internal:
2869 if (elf_section_data (section)->relocs == NULL)
2870 free (internal_relocs);
2871 goto error_ret_free_local;
2874 /* Only look for stubs on call instructions. */
2875 if (r_type != (unsigned int) R_PARISC_PCREL12F
2876 && r_type != (unsigned int) R_PARISC_PCREL17F
2877 && r_type != (unsigned int) R_PARISC_PCREL22F)
2880 /* Now determine the call target, its name, value,
2886 if (r_indx < symtab_hdr->sh_info)
2888 /* It's a local symbol. */
2889 Elf_Internal_Sym *sym;
2890 Elf_Internal_Shdr *hdr;
2893 sym = local_syms + r_indx;
2894 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2895 sym_value = sym->st_value;
2896 shndx = sym->st_shndx;
2897 if (shndx < elf_numsections (input_bfd))
2899 hdr = elf_elfsections (input_bfd)[shndx];
2900 sym_sec = hdr->bfd_section;
2901 destination = (sym_value + irela->r_addend
2902 + sym_sec->output_offset
2903 + sym_sec->output_section->vma);
2908 /* It's an external symbol. */
2911 e_indx = r_indx - symtab_hdr->sh_info;
2912 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
2914 while (hh->eh.root.type == bfd_link_hash_indirect
2915 || hh->eh.root.type == bfd_link_hash_warning)
2916 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2918 if (hh->eh.root.type == bfd_link_hash_defined
2919 || hh->eh.root.type == bfd_link_hash_defweak)
2921 sym_sec = hh->eh.root.u.def.section;
2922 sym_value = hh->eh.root.u.def.value;
2923 if (sym_sec->output_section != NULL)
2924 destination = (sym_value + irela->r_addend
2925 + sym_sec->output_offset
2926 + sym_sec->output_section->vma);
2928 else if (hh->eh.root.type == bfd_link_hash_undefweak)
2930 if (! bfd_link_pic (info))
2933 else if (hh->eh.root.type == bfd_link_hash_undefined)
2935 if (! (info->unresolved_syms_in_objects == RM_IGNORE
2936 && (ELF_ST_VISIBILITY (hh->eh.other)
2938 && hh->eh.type != STT_PARISC_MILLI))
2943 bfd_set_error (bfd_error_bad_value);
2944 goto error_ret_free_internal;
2948 /* Determine what (if any) linker stub is needed. */
2949 stub_type = hppa_type_of_stub (section, irela, hh,
2951 if (stub_type == hppa_stub_none)
2954 /* Support for grouping stub sections. */
2955 id_sec = htab->stub_group[section->id].link_sec;
2957 /* Get the name of this stub. */
2958 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
2960 goto error_ret_free_internal;
2962 hsh = hppa_stub_hash_lookup (&htab->bstab,
2967 /* The proper stub has already been created. */
2972 hsh = hppa_add_stub (stub_name, section, htab);
2976 goto error_ret_free_internal;
2979 hsh->target_value = sym_value;
2980 hsh->target_section = sym_sec;
2981 hsh->stub_type = stub_type;
2982 if (bfd_link_pic (info))
2984 if (stub_type == hppa_stub_import)
2985 hsh->stub_type = hppa_stub_import_shared;
2986 else if (stub_type == hppa_stub_long_branch)
2987 hsh->stub_type = hppa_stub_long_branch_shared;
2990 stub_changed = TRUE;
2993 /* We're done with the internal relocs, free them. */
2994 if (elf_section_data (section)->relocs == NULL)
2995 free (internal_relocs);
3002 /* OK, we've added some stubs. Find out the new size of the
3004 for (stub_sec = htab->stub_bfd->sections;
3006 stub_sec = stub_sec->next)
3007 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
3010 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
3012 /* Ask the linker to do its stuff. */
3013 (*htab->layout_sections_again) ();
3014 stub_changed = FALSE;
3017 free (htab->all_local_syms);
3020 error_ret_free_local:
3021 free (htab->all_local_syms);
3025 /* For a final link, this function is called after we have sized the
3026 stubs to provide a value for __gp. */
3029 elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
3031 struct bfd_link_hash_entry *h;
3032 asection *sec = NULL;
3035 h = bfd_link_hash_lookup (info->hash, "$global$", FALSE, FALSE, FALSE);
3038 && (h->type == bfd_link_hash_defined
3039 || h->type == bfd_link_hash_defweak))
3041 gp_val = h->u.def.value;
3042 sec = h->u.def.section;
3046 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3047 asection *sgot = bfd_get_section_by_name (abfd, ".got");
3049 /* Choose to point our LTP at, in this order, one of .plt, .got,
3050 or .data, if these sections exist. In the case of choosing
3051 .plt try to make the LTP ideal for addressing anywhere in the
3052 .plt or .got with a 14 bit signed offset. Typically, the end
3053 of the .plt is the start of the .got, so choose .plt + 0x2000
3054 if either the .plt or .got is larger than 0x2000. If both
3055 the .plt and .got are smaller than 0x2000, choose the end of
3056 the .plt section. */
3057 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3062 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
3072 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3074 /* We know we don't have a .plt. If .got is large,
3076 if (sec->size > 0x2000)
3082 /* No .plt or .got. Who cares what the LTP is? */
3083 sec = bfd_get_section_by_name (abfd, ".data");
3089 h->type = bfd_link_hash_defined;
3090 h->u.def.value = gp_val;
3092 h->u.def.section = sec;
3094 h->u.def.section = bfd_abs_section_ptr;
3098 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
3100 if (sec != NULL && sec->output_section != NULL)
3101 gp_val += sec->output_section->vma + sec->output_offset;
3103 elf_gp (abfd) = gp_val;
3108 /* Build all the stubs associated with the current output file. The
3109 stubs are kept in a hash table attached to the main linker hash
3110 table. We also set up the .plt entries for statically linked PIC
3111 functions here. This function is called via hppaelf_finish in the
3115 elf32_hppa_build_stubs (struct bfd_link_info *info)
3118 struct bfd_hash_table *table;
3119 struct elf32_hppa_link_hash_table *htab;
3121 htab = hppa_link_hash_table (info);
3125 for (stub_sec = htab->stub_bfd->sections;
3127 stub_sec = stub_sec->next)
3128 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
3129 && stub_sec->size != 0)
3131 /* Allocate memory to hold the linker stubs. */
3132 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
3133 if (stub_sec->contents == NULL)
3138 /* Build the stubs as directed by the stub hash table. */
3139 table = &htab->bstab;
3140 bfd_hash_traverse (table, hppa_build_one_stub, info);
3145 /* Return the base vma address which should be subtracted from the real
3146 address when resolving a dtpoff relocation.
3147 This is PT_TLS segment p_vaddr. */
3150 dtpoff_base (struct bfd_link_info *info)
3152 /* If tls_sec is NULL, we should have signalled an error already. */
3153 if (elf_hash_table (info)->tls_sec == NULL)
3155 return elf_hash_table (info)->tls_sec->vma;
3158 /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3161 tpoff (struct bfd_link_info *info, bfd_vma address)
3163 struct elf_link_hash_table *htab = elf_hash_table (info);
3165 /* If tls_sec is NULL, we should have signalled an error already. */
3166 if (htab->tls_sec == NULL)
3168 /* hppa TLS ABI is variant I and static TLS block start just after
3169 tcbhead structure which has 2 pointer fields. */
3170 return (address - htab->tls_sec->vma
3171 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3174 /* Perform a final link. */
3177 elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
3181 /* Invoke the regular ELF linker to do all the work. */
3182 if (!bfd_elf_final_link (abfd, info))
3185 /* If we're producing a final executable, sort the contents of the
3187 if (bfd_link_relocatable (info))
3190 /* Do not attempt to sort non-regular files. This is here
3191 especially for configure scripts and kernel builds which run
3192 tests with "ld [...] -o /dev/null". */
3193 if (stat (abfd->filename, &buf) != 0
3194 || !S_ISREG(buf.st_mode))
3197 return elf_hppa_sort_unwind (abfd);
3200 /* Record the lowest address for the data and text segments. */
3203 hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
3205 struct elf32_hppa_link_hash_table *htab;
3207 htab = (struct elf32_hppa_link_hash_table*) data;
3211 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3214 Elf_Internal_Phdr *p;
3216 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3217 BFD_ASSERT (p != NULL);
3220 if ((section->flags & SEC_READONLY) != 0)
3222 if (value < htab->text_segment_base)
3223 htab->text_segment_base = value;
3227 if (value < htab->data_segment_base)
3228 htab->data_segment_base = value;
3233 /* Perform a relocation as part of a final link. */
3235 static bfd_reloc_status_type
3236 final_link_relocate (asection *input_section,
3238 const Elf_Internal_Rela *rela,
3240 struct elf32_hppa_link_hash_table *htab,
3242 struct elf32_hppa_link_hash_entry *hh,
3243 struct bfd_link_info *info)
3246 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
3247 unsigned int orig_r_type = r_type;
3248 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3249 int r_format = howto->bitsize;
3250 enum hppa_reloc_field_selector_type_alt r_field;
3251 bfd *input_bfd = input_section->owner;
3252 bfd_vma offset = rela->r_offset;
3253 bfd_vma max_branch_offset = 0;
3254 bfd_byte *hit_data = contents + offset;
3255 bfd_signed_vma addend = rela->r_addend;
3257 struct elf32_hppa_stub_hash_entry *hsh = NULL;
3260 if (r_type == R_PARISC_NONE)
3261 return bfd_reloc_ok;
3263 insn = bfd_get_32 (input_bfd, hit_data);
3265 /* Find out where we are and where we're going. */
3266 location = (offset +
3267 input_section->output_offset +
3268 input_section->output_section->vma);
3270 /* If we are not building a shared library, convert DLTIND relocs to
3272 if (!bfd_link_pic (info))
3276 case R_PARISC_DLTIND21L:
3277 case R_PARISC_TLS_GD21L:
3278 case R_PARISC_TLS_LDM21L:
3279 case R_PARISC_TLS_IE21L:
3280 r_type = R_PARISC_DPREL21L;
3283 case R_PARISC_DLTIND14R:
3284 case R_PARISC_TLS_GD14R:
3285 case R_PARISC_TLS_LDM14R:
3286 case R_PARISC_TLS_IE14R:
3287 r_type = R_PARISC_DPREL14R;
3290 case R_PARISC_DLTIND14F:
3291 r_type = R_PARISC_DPREL14F;
3298 case R_PARISC_PCREL12F:
3299 case R_PARISC_PCREL17F:
3300 case R_PARISC_PCREL22F:
3301 /* If this call should go via the plt, find the import stub in
3304 || sym_sec->output_section == NULL
3306 && hh->eh.plt.offset != (bfd_vma) -1
3307 && hh->eh.dynindx != -1
3309 && (bfd_link_pic (info)
3310 || !hh->eh.def_regular
3311 || hh->eh.root.type == bfd_link_hash_defweak)))
3313 hsh = hppa_get_stub_entry (input_section, sym_sec,
3317 value = (hsh->stub_offset
3318 + hsh->stub_sec->output_offset
3319 + hsh->stub_sec->output_section->vma);
3322 else if (sym_sec == NULL && hh != NULL
3323 && hh->eh.root.type == bfd_link_hash_undefweak)
3325 /* It's OK if undefined weak. Calls to undefined weak
3326 symbols behave as if the "called" function
3327 immediately returns. We can thus call to a weak
3328 function without first checking whether the function
3334 return bfd_reloc_undefined;
3338 case R_PARISC_PCREL21L:
3339 case R_PARISC_PCREL17C:
3340 case R_PARISC_PCREL17R:
3341 case R_PARISC_PCREL14R:
3342 case R_PARISC_PCREL14F:
3343 case R_PARISC_PCREL32:
3344 /* Make it a pc relative offset. */
3349 case R_PARISC_DPREL21L:
3350 case R_PARISC_DPREL14R:
3351 case R_PARISC_DPREL14F:
3352 /* Convert instructions that use the linkage table pointer (r19) to
3353 instructions that use the global data pointer (dp). This is the
3354 most efficient way of using PIC code in an incomplete executable,
3355 but the user must follow the standard runtime conventions for
3356 accessing data for this to work. */
3357 if (orig_r_type != r_type)
3359 if (r_type == R_PARISC_DPREL21L)
3361 /* GCC sometimes uses a register other than r19 for the
3362 operation, so we must convert any addil instruction
3363 that uses this relocation. */
3364 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3367 /* We must have a ldil instruction. It's too hard to find
3368 and convert the associated add instruction, so issue an
3371 /* xgettext:c-format */
3372 (_("%B(%A+%#Lx): %s fixup for insn %#x is not supported in a non-shared link"),
3379 else if (r_type == R_PARISC_DPREL14F)
3381 /* This must be a format 1 load/store. Change the base
3383 insn = (insn & 0xfc1ffff) | (27 << 21);
3387 /* For all the DP relative relocations, we need to examine the symbol's
3388 section. If it has no section or if it's a code section, then
3389 "data pointer relative" makes no sense. In that case we don't
3390 adjust the "value", and for 21 bit addil instructions, we change the
3391 source addend register from %dp to %r0. This situation commonly
3392 arises for undefined weak symbols and when a variable's "constness"
3393 is declared differently from the way the variable is defined. For
3394 instance: "extern int foo" with foo defined as "const int foo". */
3395 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
3397 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3398 == (((int) OP_ADDIL << 26) | (27 << 21)))
3400 insn &= ~ (0x1f << 21);
3402 /* Now try to make things easy for the dynamic linker. */
3408 case R_PARISC_DLTIND21L:
3409 case R_PARISC_DLTIND14R:
3410 case R_PARISC_DLTIND14F:
3411 case R_PARISC_TLS_GD21L:
3412 case R_PARISC_TLS_LDM21L:
3413 case R_PARISC_TLS_IE21L:
3414 case R_PARISC_TLS_GD14R:
3415 case R_PARISC_TLS_LDM14R:
3416 case R_PARISC_TLS_IE14R:
3417 value -= elf_gp (input_section->output_section->owner);
3420 case R_PARISC_SEGREL32:
3421 if ((sym_sec->flags & SEC_CODE) != 0)
3422 value -= htab->text_segment_base;
3424 value -= htab->data_segment_base;
3433 case R_PARISC_DIR32:
3434 case R_PARISC_DIR14F:
3435 case R_PARISC_DIR17F:
3436 case R_PARISC_PCREL17C:
3437 case R_PARISC_PCREL14F:
3438 case R_PARISC_PCREL32:
3439 case R_PARISC_DPREL14F:
3440 case R_PARISC_PLABEL32:
3441 case R_PARISC_DLTIND14F:
3442 case R_PARISC_SEGBASE:
3443 case R_PARISC_SEGREL32:
3444 case R_PARISC_TLS_DTPMOD32:
3445 case R_PARISC_TLS_DTPOFF32:
3446 case R_PARISC_TLS_TPREL32:
3450 case R_PARISC_DLTIND21L:
3451 case R_PARISC_PCREL21L:
3452 case R_PARISC_PLABEL21L:
3456 case R_PARISC_DIR21L:
3457 case R_PARISC_DPREL21L:
3458 case R_PARISC_TLS_GD21L:
3459 case R_PARISC_TLS_LDM21L:
3460 case R_PARISC_TLS_LDO21L:
3461 case R_PARISC_TLS_IE21L:
3462 case R_PARISC_TLS_LE21L:
3466 case R_PARISC_PCREL17R:
3467 case R_PARISC_PCREL14R:
3468 case R_PARISC_PLABEL14R:
3469 case R_PARISC_DLTIND14R:
3473 case R_PARISC_DIR17R:
3474 case R_PARISC_DIR14R:
3475 case R_PARISC_DPREL14R:
3476 case R_PARISC_TLS_GD14R:
3477 case R_PARISC_TLS_LDM14R:
3478 case R_PARISC_TLS_LDO14R:
3479 case R_PARISC_TLS_IE14R:
3480 case R_PARISC_TLS_LE14R:
3484 case R_PARISC_PCREL12F:
3485 case R_PARISC_PCREL17F:
3486 case R_PARISC_PCREL22F:
3489 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3491 max_branch_offset = (1 << (17-1)) << 2;
3493 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3495 max_branch_offset = (1 << (12-1)) << 2;
3499 max_branch_offset = (1 << (22-1)) << 2;
3502 /* sym_sec is NULL on undefined weak syms or when shared on
3503 undefined syms. We've already checked for a stub for the
3504 shared undefined case. */
3505 if (sym_sec == NULL)
3508 /* If the branch is out of reach, then redirect the
3509 call to the local stub for this function. */
3510 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3512 hsh = hppa_get_stub_entry (input_section, sym_sec,
3515 return bfd_reloc_undefined;
3517 /* Munge up the value and addend so that we call the stub
3518 rather than the procedure directly. */
3519 value = (hsh->stub_offset
3520 + hsh->stub_sec->output_offset
3521 + hsh->stub_sec->output_section->vma
3527 /* Something we don't know how to handle. */
3529 return bfd_reloc_notsupported;
3532 /* Make sure we can reach the stub. */
3533 if (max_branch_offset != 0
3534 && value + addend + max_branch_offset >= 2*max_branch_offset)
3537 /* xgettext:c-format */
3538 (_("%B(%A+%#Lx): cannot reach %s, recompile with -ffunction-sections"),
3542 hsh->bh_root.string);
3543 bfd_set_error (bfd_error_bad_value);
3544 return bfd_reloc_notsupported;
3547 val = hppa_field_adjust (value, addend, r_field);
3551 case R_PARISC_PCREL12F:
3552 case R_PARISC_PCREL17C:
3553 case R_PARISC_PCREL17F:
3554 case R_PARISC_PCREL17R:
3555 case R_PARISC_PCREL22F:
3556 case R_PARISC_DIR17F:
3557 case R_PARISC_DIR17R:
3558 /* This is a branch. Divide the offset by four.
3559 Note that we need to decide whether it's a branch or
3560 otherwise by inspecting the reloc. Inspecting insn won't
3561 work as insn might be from a .word directive. */
3569 insn = hppa_rebuild_insn (insn, val, r_format);
3571 /* Update the instruction word. */
3572 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
3573 return bfd_reloc_ok;
3576 /* Relocate an HPPA ELF section. */
3579 elf32_hppa_relocate_section (bfd *output_bfd,
3580 struct bfd_link_info *info,
3582 asection *input_section,
3584 Elf_Internal_Rela *relocs,
3585 Elf_Internal_Sym *local_syms,
3586 asection **local_sections)
3588 bfd_vma *local_got_offsets;
3589 struct elf32_hppa_link_hash_table *htab;
3590 Elf_Internal_Shdr *symtab_hdr;
3591 Elf_Internal_Rela *rela;
3592 Elf_Internal_Rela *relend;
3594 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3596 htab = hppa_link_hash_table (info);
3600 local_got_offsets = elf_local_got_offsets (input_bfd);
3603 relend = relocs + input_section->reloc_count;
3604 for (; rela < relend; rela++)
3606 unsigned int r_type;
3607 reloc_howto_type *howto;
3608 unsigned int r_symndx;
3609 struct elf32_hppa_link_hash_entry *hh;
3610 Elf_Internal_Sym *sym;
3613 bfd_reloc_status_type rstatus;
3614 const char *sym_name;
3616 bfd_boolean warned_undef;
3618 r_type = ELF32_R_TYPE (rela->r_info);
3619 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3621 bfd_set_error (bfd_error_bad_value);
3624 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3625 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3628 r_symndx = ELF32_R_SYM (rela->r_info);
3632 warned_undef = FALSE;
3633 if (r_symndx < symtab_hdr->sh_info)
3635 /* This is a local symbol, h defaults to NULL. */
3636 sym = local_syms + r_symndx;
3637 sym_sec = local_sections[r_symndx];
3638 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
3642 struct elf_link_hash_entry *eh;
3643 bfd_boolean unresolved_reloc, ignored;
3644 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
3646 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
3647 r_symndx, symtab_hdr, sym_hashes,
3648 eh, sym_sec, relocation,
3649 unresolved_reloc, warned_undef,
3652 if (!bfd_link_relocatable (info)
3654 && eh->root.type != bfd_link_hash_defined
3655 && eh->root.type != bfd_link_hash_defweak
3656 && eh->root.type != bfd_link_hash_undefweak)
3658 if (info->unresolved_syms_in_objects == RM_IGNORE
3659 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3660 && eh->type == STT_PARISC_MILLI)
3662 (*info->callbacks->undefined_symbol)
3663 (info, eh_name (eh), input_bfd,
3664 input_section, rela->r_offset, FALSE);
3665 warned_undef = TRUE;
3668 hh = hppa_elf_hash_entry (eh);
3671 if (sym_sec != NULL && discarded_section (sym_sec))
3672 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3674 elf_hppa_howto_table + r_type, 0,
3677 if (bfd_link_relocatable (info))
3680 /* Do any required modifications to the relocation value, and
3681 determine what types of dynamic info we need to output, if
3686 case R_PARISC_DLTIND14F:
3687 case R_PARISC_DLTIND14R:
3688 case R_PARISC_DLTIND21L:
3691 bfd_boolean do_got = FALSE;
3692 bfd_boolean reloc = bfd_link_pic (info);
3694 /* Relocation is to the entry for this symbol in the
3695 global offset table. */
3700 off = hh->eh.got.offset;
3701 dyn = htab->etab.dynamic_sections_created;
3702 reloc = (!UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh)
3704 || (hh->eh.dynindx != -1
3705 && !SYMBOL_REFERENCES_LOCAL (info, &hh->eh))));
3707 || !WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3708 bfd_link_pic (info),
3711 /* If we aren't going to call finish_dynamic_symbol,
3712 then we need to handle initialisation of the .got
3713 entry and create needed relocs here. Since the
3714 offset must always be a multiple of 4, we use the
3715 least significant bit to record whether we have
3716 initialised it already. */
3721 hh->eh.got.offset |= 1;
3728 /* Local symbol case. */
3729 if (local_got_offsets == NULL)
3732 off = local_got_offsets[r_symndx];
3734 /* The offset must always be a multiple of 4. We use
3735 the least significant bit to record whether we have
3736 already generated the necessary reloc. */
3741 local_got_offsets[r_symndx] |= 1;
3750 /* Output a dynamic relocation for this GOT entry.
3751 In this case it is relative to the base of the
3752 object because the symbol index is zero. */
3753 Elf_Internal_Rela outrel;
3755 asection *sec = htab->etab.srelgot;
3757 outrel.r_offset = (off
3758 + htab->etab.sgot->output_offset
3759 + htab->etab.sgot->output_section->vma);
3760 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3761 outrel.r_addend = relocation;
3762 loc = sec->contents;
3763 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
3764 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3767 bfd_put_32 (output_bfd, relocation,
3768 htab->etab.sgot->contents + off);
3771 if (off >= (bfd_vma) -2)
3774 /* Add the base of the GOT to the relocation value. */
3776 + htab->etab.sgot->output_offset
3777 + htab->etab.sgot->output_section->vma);
3781 case R_PARISC_SEGREL32:
3782 /* If this is the first SEGREL relocation, then initialize
3783 the segment base values. */
3784 if (htab->text_segment_base == (bfd_vma) -1)
3785 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
3788 case R_PARISC_PLABEL14R:
3789 case R_PARISC_PLABEL21L:
3790 case R_PARISC_PLABEL32:
3791 if (htab->etab.dynamic_sections_created)
3794 bfd_boolean do_plt = 0;
3795 /* If we have a global symbol with a PLT slot, then
3796 redirect this relocation to it. */
3799 off = hh->eh.plt.offset;
3800 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3801 bfd_link_pic (info),
3804 /* In a non-shared link, adjust_dynamic_symbols
3805 isn't called for symbols forced local. We
3806 need to write out the plt entry here. */
3811 hh->eh.plt.offset |= 1;
3818 bfd_vma *local_plt_offsets;
3820 if (local_got_offsets == NULL)
3823 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3824 off = local_plt_offsets[r_symndx];
3826 /* As for the local .got entry case, we use the last
3827 bit to record whether we've already initialised
3828 this local .plt entry. */
3833 local_plt_offsets[r_symndx] |= 1;
3840 if (bfd_link_pic (info))
3842 /* Output a dynamic IPLT relocation for this
3844 Elf_Internal_Rela outrel;
3846 asection *s = htab->etab.srelplt;
3848 outrel.r_offset = (off
3849 + htab->etab.splt->output_offset
3850 + htab->etab.splt->output_section->vma);
3851 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3852 outrel.r_addend = relocation;
3854 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
3855 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3859 bfd_put_32 (output_bfd,
3861 htab->etab.splt->contents + off);
3862 bfd_put_32 (output_bfd,
3863 elf_gp (htab->etab.splt->output_section->owner),
3864 htab->etab.splt->contents + off + 4);
3868 if (off >= (bfd_vma) -2)
3871 /* PLABELs contain function pointers. Relocation is to
3872 the entry for the function in the .plt. The magic +2
3873 offset signals to $$dyncall that the function pointer
3874 is in the .plt and thus has a gp pointer too.
3875 Exception: Undefined PLABELs should have a value of
3878 || (hh->eh.root.type != bfd_link_hash_undefweak
3879 && hh->eh.root.type != bfd_link_hash_undefined))
3882 + htab->etab.splt->output_offset
3883 + htab->etab.splt->output_section->vma
3890 case R_PARISC_DIR17F:
3891 case R_PARISC_DIR17R:
3892 case R_PARISC_DIR14F:
3893 case R_PARISC_DIR14R:
3894 case R_PARISC_DIR21L:
3895 case R_PARISC_DPREL14F:
3896 case R_PARISC_DPREL14R:
3897 case R_PARISC_DPREL21L:
3898 case R_PARISC_DIR32:
3899 if ((input_section->flags & SEC_ALLOC) == 0)
3902 if (bfd_link_pic (info)
3904 || hh->dyn_relocs != NULL)
3905 && ((hh != NULL && pc_dynrelocs (hh))
3906 || IS_ABSOLUTE_RELOC (r_type)))
3908 && hh->dyn_relocs != NULL))
3910 Elf_Internal_Rela outrel;
3915 /* When generating a shared object, these relocations
3916 are copied into the output file to be resolved at run
3919 outrel.r_addend = rela->r_addend;
3921 _bfd_elf_section_offset (output_bfd, info, input_section,
3923 skip = (outrel.r_offset == (bfd_vma) -1
3924 || outrel.r_offset == (bfd_vma) -2);
3925 outrel.r_offset += (input_section->output_offset
3926 + input_section->output_section->vma);
3930 memset (&outrel, 0, sizeof (outrel));
3933 && hh->eh.dynindx != -1
3935 || !IS_ABSOLUTE_RELOC (r_type)
3936 || !bfd_link_pic (info)
3937 || !SYMBOLIC_BIND (info, &hh->eh)
3938 || !hh->eh.def_regular))
3940 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
3942 else /* It's a local symbol, or one marked to become local. */
3946 /* Add the absolute offset of the symbol. */
3947 outrel.r_addend += relocation;
3949 /* Global plabels need to be processed by the
3950 dynamic linker so that functions have at most one
3951 fptr. For this reason, we need to differentiate
3952 between global and local plabels, which we do by
3953 providing the function symbol for a global plabel
3954 reloc, and no symbol for local plabels. */
3957 && sym_sec->output_section != NULL
3958 && ! bfd_is_abs_section (sym_sec))
3962 osec = sym_sec->output_section;
3963 indx = elf_section_data (osec)->dynindx;
3966 osec = htab->etab.text_index_section;
3967 indx = elf_section_data (osec)->dynindx;
3969 BFD_ASSERT (indx != 0);
3971 /* We are turning this relocation into one
3972 against a section symbol, so subtract out the
3973 output section's address but not the offset
3974 of the input section in the output section. */
3975 outrel.r_addend -= osec->vma;
3978 outrel.r_info = ELF32_R_INFO (indx, r_type);
3980 sreloc = elf_section_data (input_section)->sreloc;
3984 loc = sreloc->contents;
3985 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
3986 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3990 case R_PARISC_TLS_LDM21L:
3991 case R_PARISC_TLS_LDM14R:
3995 off = htab->tls_ldm_got.offset;
4000 Elf_Internal_Rela outrel;
4003 outrel.r_offset = (off
4004 + htab->etab.sgot->output_section->vma
4005 + htab->etab.sgot->output_offset);
4006 outrel.r_addend = 0;
4007 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
4008 loc = htab->etab.srelgot->contents;
4009 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4011 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4012 htab->tls_ldm_got.offset |= 1;
4015 /* Add the base of the GOT to the relocation value. */
4017 + htab->etab.sgot->output_offset
4018 + htab->etab.sgot->output_section->vma);
4023 case R_PARISC_TLS_LDO21L:
4024 case R_PARISC_TLS_LDO14R:
4025 relocation -= dtpoff_base (info);
4028 case R_PARISC_TLS_GD21L:
4029 case R_PARISC_TLS_GD14R:
4030 case R_PARISC_TLS_IE21L:
4031 case R_PARISC_TLS_IE14R:
4040 if (!htab->etab.dynamic_sections_created
4041 || hh->eh.dynindx == -1
4042 || SYMBOL_REFERENCES_LOCAL (info, &hh->eh)
4043 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh))
4044 /* This is actually a static link, or it is a
4045 -Bsymbolic link and the symbol is defined
4046 locally, or the symbol was forced to be local
4047 because of a version file. */
4050 indx = hh->eh.dynindx;
4051 off = hh->eh.got.offset;
4052 tls_type = hh->tls_type;
4056 off = local_got_offsets[r_symndx];
4057 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4060 if (tls_type == GOT_UNKNOWN)
4067 bfd_boolean need_relocs = FALSE;
4068 Elf_Internal_Rela outrel;
4069 bfd_byte *loc = NULL;
4072 /* The GOT entries have not been initialized yet. Do it
4073 now, and emit any relocations. If both an IE GOT and a
4074 GD GOT are necessary, we emit the GD first. */
4077 || (bfd_link_pic (info)
4079 || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh))))
4082 loc = htab->etab.srelgot->contents;
4083 loc += (htab->etab.srelgot->reloc_count
4084 * sizeof (Elf32_External_Rela));
4087 if (tls_type & GOT_TLS_GD)
4093 + htab->etab.sgot->output_section->vma
4094 + htab->etab.sgot->output_offset);
4096 = ELF32_R_INFO (indx, R_PARISC_TLS_DTPMOD32);
4097 outrel.r_addend = 0;
4098 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4099 htab->etab.srelgot->reloc_count++;
4100 loc += sizeof (Elf32_External_Rela);
4102 = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4103 outrel.r_offset += 4;
4104 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4105 htab->etab.srelgot->reloc_count++;
4106 loc += sizeof (Elf32_External_Rela);
4107 bfd_put_32 (output_bfd, 0,
4108 htab->etab.sgot->contents + cur_off);
4109 bfd_put_32 (output_bfd, 0,
4110 htab->etab.sgot->contents + cur_off + 4);
4114 /* If we are not emitting relocations for a
4115 general dynamic reference, then we must be in a
4116 static link or an executable link with the
4117 symbol binding locally. Mark it as belonging
4118 to module 1, the executable. */
4119 bfd_put_32 (output_bfd, 1,
4120 htab->etab.sgot->contents + cur_off);
4121 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4122 htab->etab.sgot->contents + cur_off + 4);
4127 if (tls_type & GOT_TLS_IE)
4130 && !(bfd_link_executable (info)
4131 && SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4135 + htab->etab.sgot->output_section->vma
4136 + htab->etab.sgot->output_offset);
4137 outrel.r_info = ELF32_R_INFO (indx,
4138 R_PARISC_TLS_TPREL32);
4140 outrel.r_addend = relocation - dtpoff_base (info);
4142 outrel.r_addend = 0;
4143 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4144 htab->etab.srelgot->reloc_count++;
4145 loc += sizeof (Elf32_External_Rela);
4148 bfd_put_32 (output_bfd, tpoff (info, relocation),
4149 htab->etab.sgot->contents + cur_off);
4154 hh->eh.got.offset |= 1;
4156 local_got_offsets[r_symndx] |= 1;
4159 if ((tls_type & GOT_NORMAL) != 0
4160 && (tls_type & (GOT_TLS_GD | GOT_TLS_LDM | GOT_TLS_IE)) != 0)
4163 _bfd_error_handler (_("%s has both normal and TLS relocs"),
4167 Elf_Internal_Sym *isym
4168 = bfd_sym_from_r_symndx (&htab->sym_cache,
4169 input_bfd, r_symndx);
4173 = bfd_elf_string_from_elf_section (input_bfd,
4174 symtab_hdr->sh_link,
4176 if (sym_name == NULL)
4178 if (*sym_name == '\0')
4179 sym_name = bfd_section_name (input_bfd, sym_sec);
4181 (_("%B:%s has both normal and TLS relocs"),
4182 input_bfd, sym_name);
4184 bfd_set_error (bfd_error_bad_value);
4188 if ((tls_type & GOT_TLS_GD)
4189 && r_type != R_PARISC_TLS_GD21L
4190 && r_type != R_PARISC_TLS_GD14R)
4191 off += 2 * GOT_ENTRY_SIZE;
4193 /* Add the base of the GOT to the relocation value. */
4195 + htab->etab.sgot->output_offset
4196 + htab->etab.sgot->output_section->vma);
4201 case R_PARISC_TLS_LE21L:
4202 case R_PARISC_TLS_LE14R:
4204 relocation = tpoff (info, relocation);
4213 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4214 htab, sym_sec, hh, info);
4216 if (rstatus == bfd_reloc_ok)
4220 sym_name = hh_name (hh);
4223 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4224 symtab_hdr->sh_link,
4226 if (sym_name == NULL)
4228 if (*sym_name == '\0')
4229 sym_name = bfd_section_name (input_bfd, sym_sec);
4232 howto = elf_hppa_howto_table + r_type;
4234 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
4236 if (rstatus == bfd_reloc_notsupported || !warned_undef)
4239 /* xgettext:c-format */
4240 (_("%B(%A+%#Lx): cannot handle %s for %s"),
4246 bfd_set_error (bfd_error_bad_value);
4251 (*info->callbacks->reloc_overflow)
4252 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4253 (bfd_vma) 0, input_bfd, input_section, rela->r_offset);
4259 /* Finish up dynamic symbol handling. We set the contents of various
4260 dynamic sections here. */
4263 elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4264 struct bfd_link_info *info,
4265 struct elf_link_hash_entry *eh,
4266 Elf_Internal_Sym *sym)
4268 struct elf32_hppa_link_hash_table *htab;
4269 Elf_Internal_Rela rela;
4272 htab = hppa_link_hash_table (info);
4276 if (eh->plt.offset != (bfd_vma) -1)
4280 if (eh->plt.offset & 1)
4283 /* This symbol has an entry in the procedure linkage table. Set
4286 The format of a plt entry is
4291 if (eh->root.type == bfd_link_hash_defined
4292 || eh->root.type == bfd_link_hash_defweak)
4294 value = eh->root.u.def.value;
4295 if (eh->root.u.def.section->output_section != NULL)
4296 value += (eh->root.u.def.section->output_offset
4297 + eh->root.u.def.section->output_section->vma);
4300 /* Create a dynamic IPLT relocation for this entry. */
4301 rela.r_offset = (eh->plt.offset
4302 + htab->etab.splt->output_offset
4303 + htab->etab.splt->output_section->vma);
4304 if (eh->dynindx != -1)
4306 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4311 /* This symbol has been marked to become local, and is
4312 used by a plabel so must be kept in the .plt. */
4313 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4314 rela.r_addend = value;
4317 loc = htab->etab.srelplt->contents;
4318 loc += htab->etab.srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
4319 bfd_elf32_swap_reloca_out (htab->etab.splt->output_section->owner, &rela, loc);
4321 if (!eh->def_regular)
4323 /* Mark the symbol as undefined, rather than as defined in
4324 the .plt section. Leave the value alone. */
4325 sym->st_shndx = SHN_UNDEF;
4329 if (eh->got.offset != (bfd_vma) -1
4330 && (hppa_elf_hash_entry (eh)->tls_type & GOT_NORMAL) != 0
4331 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
4333 bfd_boolean is_dyn = (eh->dynindx != -1
4334 && !SYMBOL_REFERENCES_LOCAL (info, eh));
4336 if (is_dyn || bfd_link_pic (info))
4338 /* This symbol has an entry in the global offset table. Set
4341 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
4342 + htab->etab.sgot->output_offset
4343 + htab->etab.sgot->output_section->vma);
4345 /* If this is a -Bsymbolic link and the symbol is defined
4346 locally or was forced to be local because of a version
4347 file, we just want to emit a RELATIVE reloc. The entry
4348 in the global offset table will already have been
4349 initialized in the relocate_section function. */
4352 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4353 rela.r_addend = (eh->root.u.def.value
4354 + eh->root.u.def.section->output_offset
4355 + eh->root.u.def.section->output_section->vma);
4359 if ((eh->got.offset & 1) != 0)
4362 bfd_put_32 (output_bfd, 0,
4363 htab->etab.sgot->contents + (eh->got.offset & ~1));
4364 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4368 loc = htab->etab.srelgot->contents;
4369 loc += (htab->etab.srelgot->reloc_count++
4370 * sizeof (Elf32_External_Rela));
4371 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4379 /* This symbol needs a copy reloc. Set it up. */
4381 if (! (eh->dynindx != -1
4382 && (eh->root.type == bfd_link_hash_defined
4383 || eh->root.type == bfd_link_hash_defweak)))
4386 rela.r_offset = (eh->root.u.def.value
4387 + eh->root.u.def.section->output_offset
4388 + eh->root.u.def.section->output_section->vma);
4390 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4391 if (eh->root.u.def.section == htab->etab.sdynrelro)
4392 sec = htab->etab.sreldynrelro;
4394 sec = htab->etab.srelbss;
4395 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4396 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4399 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4400 if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
4402 sym->st_shndx = SHN_ABS;
4408 /* Used to decide how to sort relocs in an optimal manner for the
4409 dynamic linker, before writing them out. */
4411 static enum elf_reloc_type_class
4412 elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4413 const asection *rel_sec ATTRIBUTE_UNUSED,
4414 const Elf_Internal_Rela *rela)
4416 /* Handle TLS relocs first; we don't want them to be marked
4417 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
4419 switch ((int) ELF32_R_TYPE (rela->r_info))
4421 case R_PARISC_TLS_DTPMOD32:
4422 case R_PARISC_TLS_DTPOFF32:
4423 case R_PARISC_TLS_TPREL32:
4424 return reloc_class_normal;
4427 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
4428 return reloc_class_relative;
4430 switch ((int) ELF32_R_TYPE (rela->r_info))
4433 return reloc_class_plt;
4435 return reloc_class_copy;
4437 return reloc_class_normal;
4441 /* Finish up the dynamic sections. */
4444 elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4445 struct bfd_link_info *info)
4448 struct elf32_hppa_link_hash_table *htab;
4452 htab = hppa_link_hash_table (info);
4456 dynobj = htab->etab.dynobj;
4458 sgot = htab->etab.sgot;
4459 /* A broken linker script might have discarded the dynamic sections.
4460 Catch this here so that we do not seg-fault later on. */
4461 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4464 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4466 if (htab->etab.dynamic_sections_created)
4468 Elf32_External_Dyn *dyncon, *dynconend;
4473 dyncon = (Elf32_External_Dyn *) sdyn->contents;
4474 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4475 for (; dyncon < dynconend; dyncon++)
4477 Elf_Internal_Dyn dyn;
4480 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4488 /* Use PLTGOT to set the GOT register. */
4489 dyn.d_un.d_ptr = elf_gp (output_bfd);
4493 s = htab->etab.srelplt;
4494 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4498 s = htab->etab.srelplt;
4499 dyn.d_un.d_val = s->size;
4503 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4507 if (sgot != NULL && sgot->size != 0)
4509 /* Fill in the first entry in the global offset table.
4510 We use it to point to our dynamic section, if we have one. */
4511 bfd_put_32 (output_bfd,
4512 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
4515 /* The second entry is reserved for use by the dynamic linker. */
4516 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
4518 /* Set .got entry size. */
4519 elf_section_data (sgot->output_section)
4520 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
4523 if (htab->etab.splt != NULL && htab->etab.splt->size != 0)
4525 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4526 plt stubs and as such the section does not hold a table of fixed-size
4528 elf_section_data (htab->etab.splt->output_section)->this_hdr.sh_entsize = 0;
4530 if (htab->need_plt_stub)
4532 /* Set up the .plt stub. */
4533 memcpy (htab->etab.splt->contents
4534 + htab->etab.splt->size - sizeof (plt_stub),
4535 plt_stub, sizeof (plt_stub));
4537 if ((htab->etab.splt->output_offset
4538 + htab->etab.splt->output_section->vma
4539 + htab->etab.splt->size)
4540 != (sgot->output_offset
4541 + sgot->output_section->vma))
4544 (_(".got section not immediately after .plt section"));
4553 /* Called when writing out an object file to decide the type of a
4556 elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
4558 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4559 return STT_PARISC_MILLI;
4564 /* Misc BFD support code. */
4565 #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4566 #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4567 #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4568 #define elf_info_to_howto elf_hppa_info_to_howto
4569 #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4571 /* Stuff for the BFD linker. */
4572 #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4573 #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4574 #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4575 #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4576 #define elf_backend_check_relocs elf32_hppa_check_relocs
4577 #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
4578 #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4579 #define elf_backend_fake_sections elf_hppa_fake_sections
4580 #define elf_backend_relocate_section elf32_hppa_relocate_section
4581 #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4582 #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4583 #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4584 #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4585 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4586 #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4587 #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4588 #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4589 #define elf_backend_object_p elf32_hppa_object_p
4590 #define elf_backend_final_write_processing elf_hppa_final_write_processing
4591 #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4592 #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4593 #define elf_backend_action_discarded elf_hppa_action_discarded
4595 #define elf_backend_can_gc_sections 1
4596 #define elf_backend_can_refcount 1
4597 #define elf_backend_plt_alignment 2
4598 #define elf_backend_want_got_plt 0
4599 #define elf_backend_plt_readonly 0
4600 #define elf_backend_want_plt_sym 0
4601 #define elf_backend_got_header_size 8
4602 #define elf_backend_want_dynrelro 1
4603 #define elf_backend_rela_normal 1
4604 #define elf_backend_dtrel_excludes_plt 1
4605 #define elf_backend_no_page_alias 1
4607 #define TARGET_BIG_SYM hppa_elf32_vec
4608 #define TARGET_BIG_NAME "elf32-hppa"
4609 #define ELF_ARCH bfd_arch_hppa
4610 #define ELF_TARGET_ID HPPA32_ELF_DATA
4611 #define ELF_MACHINE_CODE EM_PARISC
4612 #define ELF_MAXPAGESIZE 0x1000
4613 #define ELF_OSABI ELFOSABI_HPUX
4614 #define elf32_bed elf32_hppa_hpux_bed
4616 #include "elf32-target.h"
4618 #undef TARGET_BIG_SYM
4619 #define TARGET_BIG_SYM hppa_elf32_linux_vec
4620 #undef TARGET_BIG_NAME
4621 #define TARGET_BIG_NAME "elf32-hppa-linux"
4623 #define ELF_OSABI ELFOSABI_GNU
4625 #define elf32_bed elf32_hppa_linux_bed
4627 #include "elf32-target.h"
4629 #undef TARGET_BIG_SYM
4630 #define TARGET_BIG_SYM hppa_elf32_nbsd_vec
4631 #undef TARGET_BIG_NAME
4632 #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4634 #define ELF_OSABI ELFOSABI_NETBSD
4636 #define elf32_bed elf32_hppa_netbsd_bed
4638 #include "elf32-target.h"