1 /* BFD back-end for HP PA-RISC ELF files.
2 Copyright 1990-2013 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
167 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
168 copying dynamic variables from a shared lib into an app's dynbss
169 section, and instead use a dynamic relocation to point into the
171 #define ELIMINATE_COPY_RELOCS 1
173 enum elf32_hppa_stub_type
175 hppa_stub_long_branch,
176 hppa_stub_long_branch_shared,
178 hppa_stub_import_shared,
183 struct elf32_hppa_stub_hash_entry
185 /* Base hash table entry structure. */
186 struct bfd_hash_entry bh_root;
188 /* The stub section. */
191 /* Offset within stub_sec of the beginning of this stub. */
194 /* Given the symbol's value and its section we can determine its final
195 value when building the stubs (so the stub knows where to jump. */
196 bfd_vma target_value;
197 asection *target_section;
199 enum elf32_hppa_stub_type stub_type;
201 /* The symbol table entry, if any, that this was derived from. */
202 struct elf32_hppa_link_hash_entry *hh;
204 /* Where this stub is being called from, or, in the case of combined
205 stub sections, the first input section in the group. */
209 struct elf32_hppa_link_hash_entry
211 struct elf_link_hash_entry eh;
213 /* A pointer to the most recently used stub hash entry against this
215 struct elf32_hppa_stub_hash_entry *hsh_cache;
217 /* Used to count relocations for delayed sizing of relocation
219 struct elf32_hppa_dyn_reloc_entry
221 /* Next relocation in the chain. */
222 struct elf32_hppa_dyn_reloc_entry *hdh_next;
224 /* The input section of the reloc. */
227 /* Number of relocs copied in this section. */
230 #if RELATIVE_DYNRELOCS
231 /* Number of relative relocs copied for the input section. */
232 bfd_size_type relative_count;
238 GOT_UNKNOWN = 0, GOT_NORMAL = 1, GOT_TLS_GD = 2, GOT_TLS_LDM = 4, GOT_TLS_IE = 8
241 /* Set if this symbol is used by a plabel reloc. */
242 unsigned int plabel:1;
245 struct elf32_hppa_link_hash_table
247 /* The main hash table. */
248 struct elf_link_hash_table etab;
250 /* The stub hash table. */
251 struct bfd_hash_table bstab;
253 /* Linker stub bfd. */
256 /* Linker call-backs. */
257 asection * (*add_stub_section) (const char *, asection *);
258 void (*layout_sections_again) (void);
260 /* Array to keep track of which stub sections have been created, and
261 information on stub grouping. */
264 /* This is the section to which stubs in the group will be
267 /* The stub section. */
271 /* Assorted information used by elf32_hppa_size_stubs. */
272 unsigned int bfd_count;
274 asection **input_list;
275 Elf_Internal_Sym **all_local_syms;
277 /* Short-cuts to get to dynamic linker sections. */
285 /* Used during a final link to store the base of the text and data
286 segments so that we can perform SEGREL relocations. */
287 bfd_vma text_segment_base;
288 bfd_vma data_segment_base;
290 /* Whether we support multiple sub-spaces for shared libs. */
291 unsigned int multi_subspace:1;
293 /* Flags set when various size branches are detected. Used to
294 select suitable defaults for the stub group size. */
295 unsigned int has_12bit_branch:1;
296 unsigned int has_17bit_branch:1;
297 unsigned int has_22bit_branch:1;
299 /* Set if we need a .plt stub to support lazy dynamic linking. */
300 unsigned int need_plt_stub:1;
302 /* Small local sym cache. */
303 struct sym_cache sym_cache;
305 /* Data for LDM relocations. */
308 bfd_signed_vma refcount;
313 /* Various hash macros and functions. */
314 #define hppa_link_hash_table(p) \
315 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
316 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
318 #define hppa_elf_hash_entry(ent) \
319 ((struct elf32_hppa_link_hash_entry *)(ent))
321 #define hppa_stub_hash_entry(ent) \
322 ((struct elf32_hppa_stub_hash_entry *)(ent))
324 #define hppa_stub_hash_lookup(table, string, create, copy) \
325 ((struct elf32_hppa_stub_hash_entry *) \
326 bfd_hash_lookup ((table), (string), (create), (copy)))
328 #define hppa_elf_local_got_tls_type(abfd) \
329 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
331 #define hh_name(hh) \
332 (hh ? hh->eh.root.root.string : "<undef>")
334 #define eh_name(eh) \
335 (eh ? eh->root.root.string : "<undef>")
337 /* Assorted hash table functions. */
339 /* Initialize an entry in the stub hash table. */
341 static struct bfd_hash_entry *
342 stub_hash_newfunc (struct bfd_hash_entry *entry,
343 struct bfd_hash_table *table,
346 /* Allocate the structure if it has not already been allocated by a
350 entry = bfd_hash_allocate (table,
351 sizeof (struct elf32_hppa_stub_hash_entry));
356 /* Call the allocation method of the superclass. */
357 entry = bfd_hash_newfunc (entry, table, string);
360 struct elf32_hppa_stub_hash_entry *hsh;
362 /* Initialize the local fields. */
363 hsh = hppa_stub_hash_entry (entry);
364 hsh->stub_sec = NULL;
365 hsh->stub_offset = 0;
366 hsh->target_value = 0;
367 hsh->target_section = NULL;
368 hsh->stub_type = hppa_stub_long_branch;
376 /* Initialize an entry in the link hash table. */
378 static struct bfd_hash_entry *
379 hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
380 struct bfd_hash_table *table,
383 /* Allocate the structure if it has not already been allocated by a
387 entry = bfd_hash_allocate (table,
388 sizeof (struct elf32_hppa_link_hash_entry));
393 /* Call the allocation method of the superclass. */
394 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
397 struct elf32_hppa_link_hash_entry *hh;
399 /* Initialize the local fields. */
400 hh = hppa_elf_hash_entry (entry);
401 hh->hsh_cache = NULL;
402 hh->dyn_relocs = NULL;
404 hh->tls_type = GOT_UNKNOWN;
410 /* Create the derived linker hash table. The PA ELF port uses the derived
411 hash table to keep information specific to the PA ELF linker (without
412 using static variables). */
414 static struct bfd_link_hash_table *
415 elf32_hppa_link_hash_table_create (bfd *abfd)
417 struct elf32_hppa_link_hash_table *htab;
418 bfd_size_type amt = sizeof (*htab);
420 htab = bfd_zmalloc (amt);
424 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
425 sizeof (struct elf32_hppa_link_hash_entry),
432 /* Init the stub hash table too. */
433 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
434 sizeof (struct elf32_hppa_stub_hash_entry)))
437 htab->text_segment_base = (bfd_vma) -1;
438 htab->data_segment_base = (bfd_vma) -1;
439 return &htab->etab.root;
442 /* Free the derived linker hash table. */
445 elf32_hppa_link_hash_table_free (struct bfd_link_hash_table *btab)
447 struct elf32_hppa_link_hash_table *htab
448 = (struct elf32_hppa_link_hash_table *) btab;
450 bfd_hash_table_free (&htab->bstab);
451 _bfd_elf_link_hash_table_free (btab);
454 /* Build a name for an entry in the stub hash table. */
457 hppa_stub_name (const asection *input_section,
458 const asection *sym_sec,
459 const struct elf32_hppa_link_hash_entry *hh,
460 const Elf_Internal_Rela *rela)
467 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
468 stub_name = bfd_malloc (len);
469 if (stub_name != NULL)
470 sprintf (stub_name, "%08x_%s+%x",
471 input_section->id & 0xffffffff,
473 (int) rela->r_addend & 0xffffffff);
477 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
478 stub_name = bfd_malloc (len);
479 if (stub_name != NULL)
480 sprintf (stub_name, "%08x_%x:%x+%x",
481 input_section->id & 0xffffffff,
482 sym_sec->id & 0xffffffff,
483 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
484 (int) rela->r_addend & 0xffffffff);
489 /* Look up an entry in the stub hash. Stub entries are cached because
490 creating the stub name takes a bit of time. */
492 static struct elf32_hppa_stub_hash_entry *
493 hppa_get_stub_entry (const asection *input_section,
494 const asection *sym_sec,
495 struct elf32_hppa_link_hash_entry *hh,
496 const Elf_Internal_Rela *rela,
497 struct elf32_hppa_link_hash_table *htab)
499 struct elf32_hppa_stub_hash_entry *hsh_entry;
500 const asection *id_sec;
502 /* If this input section is part of a group of sections sharing one
503 stub section, then use the id of the first section in the group.
504 Stub names need to include a section id, as there may well be
505 more than one stub used to reach say, printf, and we need to
506 distinguish between them. */
507 id_sec = htab->stub_group[input_section->id].link_sec;
509 if (hh != NULL && hh->hsh_cache != NULL
510 && hh->hsh_cache->hh == hh
511 && hh->hsh_cache->id_sec == id_sec)
513 hsh_entry = hh->hsh_cache;
519 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
520 if (stub_name == NULL)
523 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
524 stub_name, FALSE, FALSE);
526 hh->hsh_cache = hsh_entry;
534 /* Add a new stub entry to the stub hash. Not all fields of the new
535 stub entry are initialised. */
537 static struct elf32_hppa_stub_hash_entry *
538 hppa_add_stub (const char *stub_name,
540 struct elf32_hppa_link_hash_table *htab)
544 struct elf32_hppa_stub_hash_entry *hsh;
546 link_sec = htab->stub_group[section->id].link_sec;
547 stub_sec = htab->stub_group[section->id].stub_sec;
548 if (stub_sec == NULL)
550 stub_sec = htab->stub_group[link_sec->id].stub_sec;
551 if (stub_sec == NULL)
557 namelen = strlen (link_sec->name);
558 len = namelen + sizeof (STUB_SUFFIX);
559 s_name = bfd_alloc (htab->stub_bfd, len);
563 memcpy (s_name, link_sec->name, namelen);
564 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
565 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
566 if (stub_sec == NULL)
568 htab->stub_group[link_sec->id].stub_sec = stub_sec;
570 htab->stub_group[section->id].stub_sec = stub_sec;
573 /* Enter this entry into the linker stub hash table. */
574 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
578 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
584 hsh->stub_sec = stub_sec;
585 hsh->stub_offset = 0;
586 hsh->id_sec = link_sec;
590 /* Determine the type of stub needed, if any, for a call. */
592 static enum elf32_hppa_stub_type
593 hppa_type_of_stub (asection *input_sec,
594 const Elf_Internal_Rela *rela,
595 struct elf32_hppa_link_hash_entry *hh,
597 struct bfd_link_info *info)
600 bfd_vma branch_offset;
601 bfd_vma max_branch_offset;
605 && hh->eh.plt.offset != (bfd_vma) -1
606 && hh->eh.dynindx != -1
609 || !hh->eh.def_regular
610 || hh->eh.root.type == bfd_link_hash_defweak))
612 /* We need an import stub. Decide between hppa_stub_import
613 and hppa_stub_import_shared later. */
614 return hppa_stub_import;
617 /* Determine where the call point is. */
618 location = (input_sec->output_offset
619 + input_sec->output_section->vma
622 branch_offset = destination - location - 8;
623 r_type = ELF32_R_TYPE (rela->r_info);
625 /* Determine if a long branch stub is needed. parisc branch offsets
626 are relative to the second instruction past the branch, ie. +8
627 bytes on from the branch instruction location. The offset is
628 signed and counts in units of 4 bytes. */
629 if (r_type == (unsigned int) R_PARISC_PCREL17F)
630 max_branch_offset = (1 << (17 - 1)) << 2;
632 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
633 max_branch_offset = (1 << (12 - 1)) << 2;
635 else /* R_PARISC_PCREL22F. */
636 max_branch_offset = (1 << (22 - 1)) << 2;
638 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
639 return hppa_stub_long_branch;
641 return hppa_stub_none;
644 /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
645 IN_ARG contains the link info pointer. */
647 #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
648 #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
650 #define BL_R1 0xe8200000 /* b,l .+8,%r1 */
651 #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
652 #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
654 #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
655 #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
656 #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
657 #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
659 #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
660 #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
662 #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
663 #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
664 #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
665 #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
667 #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
668 #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
669 #define NOP 0x08000240 /* nop */
670 #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
671 #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
672 #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
679 #define LDW_R1_DLT LDW_R1_R19
681 #define LDW_R1_DLT LDW_R1_DP
685 hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
687 struct elf32_hppa_stub_hash_entry *hsh;
688 struct bfd_link_info *info;
689 struct elf32_hppa_link_hash_table *htab;
699 /* Massage our args to the form they really have. */
700 hsh = hppa_stub_hash_entry (bh);
701 info = (struct bfd_link_info *)in_arg;
703 htab = hppa_link_hash_table (info);
707 stub_sec = hsh->stub_sec;
709 /* Make a note of the offset within the stubs for this entry. */
710 hsh->stub_offset = stub_sec->size;
711 loc = stub_sec->contents + hsh->stub_offset;
713 stub_bfd = stub_sec->owner;
715 switch (hsh->stub_type)
717 case hppa_stub_long_branch:
718 /* Create the long branch. A long branch is formed with "ldil"
719 loading the upper bits of the target address into a register,
720 then branching with "be" which adds in the lower bits.
721 The "be" has its delay slot nullified. */
722 sym_value = (hsh->target_value
723 + hsh->target_section->output_offset
724 + hsh->target_section->output_section->vma);
726 val = hppa_field_adjust (sym_value, 0, e_lrsel);
727 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
728 bfd_put_32 (stub_bfd, insn, loc);
730 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
731 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
732 bfd_put_32 (stub_bfd, insn, loc + 4);
737 case hppa_stub_long_branch_shared:
738 /* Branches are relative. This is where we are going to. */
739 sym_value = (hsh->target_value
740 + hsh->target_section->output_offset
741 + hsh->target_section->output_section->vma);
743 /* And this is where we are coming from, more or less. */
744 sym_value -= (hsh->stub_offset
745 + stub_sec->output_offset
746 + stub_sec->output_section->vma);
748 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
749 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
750 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
751 bfd_put_32 (stub_bfd, insn, loc + 4);
753 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
754 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
755 bfd_put_32 (stub_bfd, insn, loc + 8);
759 case hppa_stub_import:
760 case hppa_stub_import_shared:
761 off = hsh->hh->eh.plt.offset;
762 if (off >= (bfd_vma) -2)
765 off &= ~ (bfd_vma) 1;
767 + htab->splt->output_offset
768 + htab->splt->output_section->vma
769 - elf_gp (htab->splt->output_section->owner));
773 if (hsh->stub_type == hppa_stub_import_shared)
776 val = hppa_field_adjust (sym_value, 0, e_lrsel),
777 insn = hppa_rebuild_insn ((int) insn, val, 21);
778 bfd_put_32 (stub_bfd, insn, loc);
780 /* It is critical to use lrsel/rrsel here because we are using
781 two different offsets (+0 and +4) from sym_value. If we use
782 lsel/rsel then with unfortunate sym_values we will round
783 sym_value+4 up to the next 2k block leading to a mis-match
784 between the lsel and rsel value. */
785 val = hppa_field_adjust (sym_value, 0, e_rrsel);
786 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
787 bfd_put_32 (stub_bfd, insn, loc + 4);
789 if (htab->multi_subspace)
791 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
792 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
793 bfd_put_32 (stub_bfd, insn, loc + 8);
795 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
796 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
797 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
798 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
804 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
805 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
806 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
807 bfd_put_32 (stub_bfd, insn, loc + 12);
814 case hppa_stub_export:
815 /* Branches are relative. This is where we are going to. */
816 sym_value = (hsh->target_value
817 + hsh->target_section->output_offset
818 + hsh->target_section->output_section->vma);
820 /* And this is where we are coming from. */
821 sym_value -= (hsh->stub_offset
822 + stub_sec->output_offset
823 + stub_sec->output_section->vma);
825 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
826 && (!htab->has_22bit_branch
827 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
829 (*_bfd_error_handler)
830 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
831 hsh->target_section->owner,
833 (long) hsh->stub_offset,
834 hsh->bh_root.string);
835 bfd_set_error (bfd_error_bad_value);
839 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
840 if (!htab->has_22bit_branch)
841 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
843 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
844 bfd_put_32 (stub_bfd, insn, loc);
846 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
847 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
848 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
849 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
850 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
852 /* Point the function symbol at the stub. */
853 hsh->hh->eh.root.u.def.section = stub_sec;
854 hsh->hh->eh.root.u.def.value = stub_sec->size;
864 stub_sec->size += size;
889 /* As above, but don't actually build the stub. Just bump offset so
890 we know stub section sizes. */
893 hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
895 struct elf32_hppa_stub_hash_entry *hsh;
896 struct elf32_hppa_link_hash_table *htab;
899 /* Massage our args to the form they really have. */
900 hsh = hppa_stub_hash_entry (bh);
903 if (hsh->stub_type == hppa_stub_long_branch)
905 else if (hsh->stub_type == hppa_stub_long_branch_shared)
907 else if (hsh->stub_type == hppa_stub_export)
909 else /* hppa_stub_import or hppa_stub_import_shared. */
911 if (htab->multi_subspace)
917 hsh->stub_sec->size += size;
921 /* Return nonzero if ABFD represents an HPPA ELF32 file.
922 Additionally we set the default architecture and machine. */
925 elf32_hppa_object_p (bfd *abfd)
927 Elf_Internal_Ehdr * i_ehdrp;
930 i_ehdrp = elf_elfheader (abfd);
931 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
933 /* GCC on hppa-linux produces binaries with OSABI=GNU,
934 but the kernel produces corefiles with OSABI=SysV. */
935 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
936 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
939 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
941 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
942 but the kernel produces corefiles with OSABI=SysV. */
943 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
944 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
949 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
953 flags = i_ehdrp->e_flags;
954 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
957 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
959 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
961 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
962 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
963 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
968 /* Create the .plt and .got sections, and set up our hash table
969 short-cuts to various dynamic sections. */
972 elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
974 struct elf32_hppa_link_hash_table *htab;
975 struct elf_link_hash_entry *eh;
977 /* Don't try to create the .plt and .got twice. */
978 htab = hppa_link_hash_table (info);
981 if (htab->splt != NULL)
984 /* Call the generic code to do most of the work. */
985 if (! _bfd_elf_create_dynamic_sections (abfd, info))
988 htab->splt = bfd_get_linker_section (abfd, ".plt");
989 htab->srelplt = bfd_get_linker_section (abfd, ".rela.plt");
991 htab->sgot = bfd_get_linker_section (abfd, ".got");
992 htab->srelgot = bfd_get_linker_section (abfd, ".rela.got");
994 htab->sdynbss = bfd_get_linker_section (abfd, ".dynbss");
995 htab->srelbss = bfd_get_linker_section (abfd, ".rela.bss");
997 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
998 application, because __canonicalize_funcptr_for_compare needs it. */
999 eh = elf_hash_table (info)->hgot;
1000 eh->forced_local = 0;
1001 eh->other = STV_DEFAULT;
1002 return bfd_elf_link_record_dynamic_symbol (info, eh);
1005 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1008 elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
1009 struct elf_link_hash_entry *eh_dir,
1010 struct elf_link_hash_entry *eh_ind)
1012 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
1014 hh_dir = hppa_elf_hash_entry (eh_dir);
1015 hh_ind = hppa_elf_hash_entry (eh_ind);
1017 if (hh_ind->dyn_relocs != NULL)
1019 if (hh_dir->dyn_relocs != NULL)
1021 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1022 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1024 /* Add reloc counts against the indirect sym to the direct sym
1025 list. Merge any entries against the same section. */
1026 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
1028 struct elf32_hppa_dyn_reloc_entry *hdh_q;
1030 for (hdh_q = hh_dir->dyn_relocs;
1032 hdh_q = hdh_q->hdh_next)
1033 if (hdh_q->sec == hdh_p->sec)
1035 #if RELATIVE_DYNRELOCS
1036 hdh_q->relative_count += hdh_p->relative_count;
1038 hdh_q->count += hdh_p->count;
1039 *hdh_pp = hdh_p->hdh_next;
1043 hdh_pp = &hdh_p->hdh_next;
1045 *hdh_pp = hh_dir->dyn_relocs;
1048 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1049 hh_ind->dyn_relocs = NULL;
1052 if (ELIMINATE_COPY_RELOCS
1053 && eh_ind->root.type != bfd_link_hash_indirect
1054 && eh_dir->dynamic_adjusted)
1056 /* If called to transfer flags for a weakdef during processing
1057 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1058 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
1059 eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
1060 eh_dir->ref_regular |= eh_ind->ref_regular;
1061 eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1062 eh_dir->needs_plt |= eh_ind->needs_plt;
1066 if (eh_ind->root.type == bfd_link_hash_indirect
1067 && eh_dir->got.refcount <= 0)
1069 hh_dir->tls_type = hh_ind->tls_type;
1070 hh_ind->tls_type = GOT_UNKNOWN;
1073 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1078 elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1079 int r_type, int is_local ATTRIBUTE_UNUSED)
1081 /* For now we don't support linker optimizations. */
1085 /* Return a pointer to the local GOT, PLT and TLS reference counts
1086 for ABFD. Returns NULL if the storage allocation fails. */
1088 static bfd_signed_vma *
1089 hppa32_elf_local_refcounts (bfd *abfd)
1091 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1092 bfd_signed_vma *local_refcounts;
1094 local_refcounts = elf_local_got_refcounts (abfd);
1095 if (local_refcounts == NULL)
1099 /* Allocate space for local GOT and PLT reference
1100 counts. Done this way to save polluting elf_obj_tdata
1101 with another target specific pointer. */
1102 size = symtab_hdr->sh_info;
1103 size *= 2 * sizeof (bfd_signed_vma);
1104 /* Add in space to store the local GOT TLS types. */
1105 size += symtab_hdr->sh_info;
1106 local_refcounts = bfd_zalloc (abfd, size);
1107 if (local_refcounts == NULL)
1109 elf_local_got_refcounts (abfd) = local_refcounts;
1110 memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1111 symtab_hdr->sh_info);
1113 return local_refcounts;
1117 /* Look through the relocs for a section during the first phase, and
1118 calculate needed space in the global offset table, procedure linkage
1119 table, and dynamic reloc sections. At this point we haven't
1120 necessarily read all the input files. */
1123 elf32_hppa_check_relocs (bfd *abfd,
1124 struct bfd_link_info *info,
1126 const Elf_Internal_Rela *relocs)
1128 Elf_Internal_Shdr *symtab_hdr;
1129 struct elf_link_hash_entry **eh_syms;
1130 const Elf_Internal_Rela *rela;
1131 const Elf_Internal_Rela *rela_end;
1132 struct elf32_hppa_link_hash_table *htab;
1134 int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
1136 if (info->relocatable)
1139 htab = hppa_link_hash_table (info);
1142 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1143 eh_syms = elf_sym_hashes (abfd);
1146 rela_end = relocs + sec->reloc_count;
1147 for (rela = relocs; rela < rela_end; rela++)
1156 unsigned int r_symndx, r_type;
1157 struct elf32_hppa_link_hash_entry *hh;
1160 r_symndx = ELF32_R_SYM (rela->r_info);
1162 if (r_symndx < symtab_hdr->sh_info)
1166 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
1167 while (hh->eh.root.type == bfd_link_hash_indirect
1168 || hh->eh.root.type == bfd_link_hash_warning)
1169 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
1171 /* PR15323, ref flags aren't set for references in the same
1173 hh->eh.root.non_ir_ref = 1;
1176 r_type = ELF32_R_TYPE (rela->r_info);
1177 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
1181 case R_PARISC_DLTIND14F:
1182 case R_PARISC_DLTIND14R:
1183 case R_PARISC_DLTIND21L:
1184 /* This symbol requires a global offset table entry. */
1185 need_entry = NEED_GOT;
1188 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1189 case R_PARISC_PLABEL21L:
1190 case R_PARISC_PLABEL32:
1191 /* If the addend is non-zero, we break badly. */
1192 if (rela->r_addend != 0)
1195 /* If we are creating a shared library, then we need to
1196 create a PLT entry for all PLABELs, because PLABELs with
1197 local symbols may be passed via a pointer to another
1198 object. Additionally, output a dynamic relocation
1199 pointing to the PLT entry.
1201 For executables, the original 32-bit ABI allowed two
1202 different styles of PLABELs (function pointers): For
1203 global functions, the PLABEL word points into the .plt
1204 two bytes past a (function address, gp) pair, and for
1205 local functions the PLABEL points directly at the
1206 function. The magic +2 for the first type allows us to
1207 differentiate between the two. As you can imagine, this
1208 is a real pain when it comes to generating code to call
1209 functions indirectly or to compare function pointers.
1210 We avoid the mess by always pointing a PLABEL into the
1211 .plt, even for local functions. */
1212 need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
1215 case R_PARISC_PCREL12F:
1216 htab->has_12bit_branch = 1;
1219 case R_PARISC_PCREL17C:
1220 case R_PARISC_PCREL17F:
1221 htab->has_17bit_branch = 1;
1224 case R_PARISC_PCREL22F:
1225 htab->has_22bit_branch = 1;
1227 /* Function calls might need to go through the .plt, and
1228 might require long branch stubs. */
1231 /* We know local syms won't need a .plt entry, and if
1232 they need a long branch stub we can't guarantee that
1233 we can reach the stub. So just flag an error later
1234 if we're doing a shared link and find we need a long
1240 /* Global symbols will need a .plt entry if they remain
1241 global, and in most cases won't need a long branch
1242 stub. Unfortunately, we have to cater for the case
1243 where a symbol is forced local by versioning, or due
1244 to symbolic linking, and we lose the .plt entry. */
1245 need_entry = NEED_PLT;
1246 if (hh->eh.type == STT_PARISC_MILLI)
1251 case R_PARISC_SEGBASE: /* Used to set segment base. */
1252 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
1253 case R_PARISC_PCREL14F: /* PC relative load/store. */
1254 case R_PARISC_PCREL14R:
1255 case R_PARISC_PCREL17R: /* External branches. */
1256 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
1257 case R_PARISC_PCREL32:
1258 /* We don't need to propagate the relocation if linking a
1259 shared object since these are section relative. */
1262 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1263 case R_PARISC_DPREL14R:
1264 case R_PARISC_DPREL21L:
1267 (*_bfd_error_handler)
1268 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1270 elf_hppa_howto_table[r_type].name);
1271 bfd_set_error (bfd_error_bad_value);
1276 case R_PARISC_DIR17F: /* Used for external branches. */
1277 case R_PARISC_DIR17R:
1278 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1279 case R_PARISC_DIR14R:
1280 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
1281 case R_PARISC_DIR32: /* .word relocs. */
1282 /* We may want to output a dynamic relocation later. */
1283 need_entry = NEED_DYNREL;
1286 /* This relocation describes the C++ object vtable hierarchy.
1287 Reconstruct it for later use during GC. */
1288 case R_PARISC_GNU_VTINHERIT:
1289 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
1293 /* This relocation describes which C++ vtable entries are actually
1294 used. Record for later use during GC. */
1295 case R_PARISC_GNU_VTENTRY:
1296 BFD_ASSERT (hh != NULL);
1298 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
1302 case R_PARISC_TLS_GD21L:
1303 case R_PARISC_TLS_GD14R:
1304 case R_PARISC_TLS_LDM21L:
1305 case R_PARISC_TLS_LDM14R:
1306 need_entry = NEED_GOT;
1309 case R_PARISC_TLS_IE21L:
1310 case R_PARISC_TLS_IE14R:
1312 info->flags |= DF_STATIC_TLS;
1313 need_entry = NEED_GOT;
1320 /* Now carry out our orders. */
1321 if (need_entry & NEED_GOT)
1326 tls_type = GOT_NORMAL;
1328 case R_PARISC_TLS_GD21L:
1329 case R_PARISC_TLS_GD14R:
1330 tls_type |= GOT_TLS_GD;
1332 case R_PARISC_TLS_LDM21L:
1333 case R_PARISC_TLS_LDM14R:
1334 tls_type |= GOT_TLS_LDM;
1336 case R_PARISC_TLS_IE21L:
1337 case R_PARISC_TLS_IE14R:
1338 tls_type |= GOT_TLS_IE;
1342 /* Allocate space for a GOT entry, as well as a dynamic
1343 relocation for this entry. */
1344 if (htab->sgot == NULL)
1346 if (htab->etab.dynobj == NULL)
1347 htab->etab.dynobj = abfd;
1348 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
1352 if (r_type == R_PARISC_TLS_LDM21L
1353 || r_type == R_PARISC_TLS_LDM14R)
1354 htab->tls_ldm_got.refcount += 1;
1359 hh->eh.got.refcount += 1;
1360 old_tls_type = hh->tls_type;
1364 bfd_signed_vma *local_got_refcounts;
1366 /* This is a global offset table entry for a local symbol. */
1367 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1368 if (local_got_refcounts == NULL)
1370 local_got_refcounts[r_symndx] += 1;
1372 old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
1375 tls_type |= old_tls_type;
1377 if (old_tls_type != tls_type)
1380 hh->tls_type = tls_type;
1382 hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1388 if (need_entry & NEED_PLT)
1390 /* If we are creating a shared library, and this is a reloc
1391 against a weak symbol or a global symbol in a dynamic
1392 object, then we will be creating an import stub and a
1393 .plt entry for the symbol. Similarly, on a normal link
1394 to symbols defined in a dynamic object we'll need the
1395 import stub and a .plt entry. We don't know yet whether
1396 the symbol is defined or not, so make an entry anyway and
1397 clean up later in adjust_dynamic_symbol. */
1398 if ((sec->flags & SEC_ALLOC) != 0)
1402 hh->eh.needs_plt = 1;
1403 hh->eh.plt.refcount += 1;
1405 /* If this .plt entry is for a plabel, mark it so
1406 that adjust_dynamic_symbol will keep the entry
1407 even if it appears to be local. */
1408 if (need_entry & PLT_PLABEL)
1411 else if (need_entry & PLT_PLABEL)
1413 bfd_signed_vma *local_got_refcounts;
1414 bfd_signed_vma *local_plt_refcounts;
1416 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1417 if (local_got_refcounts == NULL)
1419 local_plt_refcounts = (local_got_refcounts
1420 + symtab_hdr->sh_info);
1421 local_plt_refcounts[r_symndx] += 1;
1426 if (need_entry & NEED_DYNREL)
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 && !info->shared)
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
1463 && (sec->flags & SEC_ALLOC) != 0
1464 && (IS_ABSOLUTE_RELOC (r_type)
1467 || hh->eh.root.type == bfd_link_hash_defweak
1468 || !hh->eh.def_regular))))
1469 || (ELIMINATE_COPY_RELOCS
1471 && (sec->flags & SEC_ALLOC) != 0
1473 && (hh->eh.root.type == bfd_link_hash_defweak
1474 || !hh->eh.def_regular)))
1476 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1477 struct elf32_hppa_dyn_reloc_entry **hdh_head;
1479 /* Create a reloc section in dynobj and make room for
1483 if (htab->etab.dynobj == NULL)
1484 htab->etab.dynobj = abfd;
1486 sreloc = _bfd_elf_make_dynamic_reloc_section
1487 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1491 bfd_set_error (bfd_error_bad_value);
1496 /* If this is a global symbol, we count the number of
1497 relocations we need for this symbol. */
1500 hdh_head = &hh->dyn_relocs;
1504 /* Track dynamic relocs needed for local syms too.
1505 We really need local syms available to do this
1509 Elf_Internal_Sym *isym;
1511 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1516 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1520 vpp = &elf_section_data (sr)->local_dynrel;
1521 hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
1525 if (hdh_p == NULL || hdh_p->sec != sec)
1527 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
1530 hdh_p->hdh_next = *hdh_head;
1534 #if RELATIVE_DYNRELOCS
1535 hdh_p->relative_count = 0;
1540 #if RELATIVE_DYNRELOCS
1541 if (!IS_ABSOLUTE_RELOC (rtype))
1542 hdh_p->relative_count += 1;
1551 /* Return the section that should be marked against garbage collection
1552 for a given relocation. */
1555 elf32_hppa_gc_mark_hook (asection *sec,
1556 struct bfd_link_info *info,
1557 Elf_Internal_Rela *rela,
1558 struct elf_link_hash_entry *hh,
1559 Elf_Internal_Sym *sym)
1562 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1564 case R_PARISC_GNU_VTINHERIT:
1565 case R_PARISC_GNU_VTENTRY:
1569 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
1572 /* Update the got and plt entry reference counts for the section being
1576 elf32_hppa_gc_sweep_hook (bfd *abfd,
1577 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1579 const Elf_Internal_Rela *relocs)
1581 Elf_Internal_Shdr *symtab_hdr;
1582 struct elf_link_hash_entry **eh_syms;
1583 bfd_signed_vma *local_got_refcounts;
1584 bfd_signed_vma *local_plt_refcounts;
1585 const Elf_Internal_Rela *rela, *relend;
1586 struct elf32_hppa_link_hash_table *htab;
1588 if (info->relocatable)
1591 htab = hppa_link_hash_table (info);
1595 elf_section_data (sec)->local_dynrel = NULL;
1597 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1598 eh_syms = elf_sym_hashes (abfd);
1599 local_got_refcounts = elf_local_got_refcounts (abfd);
1600 local_plt_refcounts = local_got_refcounts;
1601 if (local_plt_refcounts != NULL)
1602 local_plt_refcounts += symtab_hdr->sh_info;
1604 relend = relocs + sec->reloc_count;
1605 for (rela = relocs; rela < relend; rela++)
1607 unsigned long r_symndx;
1608 unsigned int r_type;
1609 struct elf_link_hash_entry *eh = NULL;
1611 r_symndx = ELF32_R_SYM (rela->r_info);
1612 if (r_symndx >= symtab_hdr->sh_info)
1614 struct elf32_hppa_link_hash_entry *hh;
1615 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1616 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1618 eh = eh_syms[r_symndx - symtab_hdr->sh_info];
1619 while (eh->root.type == bfd_link_hash_indirect
1620 || eh->root.type == bfd_link_hash_warning)
1621 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
1622 hh = hppa_elf_hash_entry (eh);
1624 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next)
1625 if (hdh_p->sec == sec)
1627 /* Everything must go for SEC. */
1628 *hdh_pp = hdh_p->hdh_next;
1633 r_type = ELF32_R_TYPE (rela->r_info);
1634 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL);
1638 case R_PARISC_DLTIND14F:
1639 case R_PARISC_DLTIND14R:
1640 case R_PARISC_DLTIND21L:
1641 case R_PARISC_TLS_GD21L:
1642 case R_PARISC_TLS_GD14R:
1643 case R_PARISC_TLS_IE21L:
1644 case R_PARISC_TLS_IE14R:
1647 if (eh->got.refcount > 0)
1648 eh->got.refcount -= 1;
1650 else if (local_got_refcounts != NULL)
1652 if (local_got_refcounts[r_symndx] > 0)
1653 local_got_refcounts[r_symndx] -= 1;
1657 case R_PARISC_TLS_LDM21L:
1658 case R_PARISC_TLS_LDM14R:
1659 htab->tls_ldm_got.refcount -= 1;
1662 case R_PARISC_PCREL12F:
1663 case R_PARISC_PCREL17C:
1664 case R_PARISC_PCREL17F:
1665 case R_PARISC_PCREL22F:
1668 if (eh->plt.refcount > 0)
1669 eh->plt.refcount -= 1;
1673 case R_PARISC_PLABEL14R:
1674 case R_PARISC_PLABEL21L:
1675 case R_PARISC_PLABEL32:
1678 if (eh->plt.refcount > 0)
1679 eh->plt.refcount -= 1;
1681 else if (local_plt_refcounts != NULL)
1683 if (local_plt_refcounts[r_symndx] > 0)
1684 local_plt_refcounts[r_symndx] -= 1;
1696 /* Support for core dump NOTE sections. */
1699 elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1704 switch (note->descsz)
1709 case 396: /* Linux/hppa */
1711 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
1714 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
1723 /* Make a ".reg/999" section. */
1724 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1725 size, note->descpos + offset);
1729 elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1731 switch (note->descsz)
1736 case 124: /* Linux/hppa elf_prpsinfo. */
1737 elf_tdata (abfd)->core->program
1738 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
1739 elf_tdata (abfd)->core->command
1740 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1743 /* Note that for some reason, a spurious space is tacked
1744 onto the end of the args in some (at least one anyway)
1745 implementations, so strip it off if it exists. */
1747 char *command = elf_tdata (abfd)->core->command;
1748 int n = strlen (command);
1750 if (0 < n && command[n - 1] == ' ')
1751 command[n - 1] = '\0';
1757 /* Our own version of hide_symbol, so that we can keep plt entries for
1761 elf32_hppa_hide_symbol (struct bfd_link_info *info,
1762 struct elf_link_hash_entry *eh,
1763 bfd_boolean force_local)
1767 eh->forced_local = 1;
1768 if (eh->dynindx != -1)
1771 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1776 /* STT_GNU_IFUNC symbol must go through PLT. */
1777 if (! hppa_elf_hash_entry (eh)->plabel
1778 && eh->type != STT_GNU_IFUNC)
1781 eh->plt = elf_hash_table (info)->init_plt_offset;
1785 /* Adjust a symbol defined by a dynamic object and referenced by a
1786 regular object. The current definition is in some section of the
1787 dynamic object, but we're not including those sections. We have to
1788 change the definition to something the rest of the link can
1792 elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
1793 struct elf_link_hash_entry *eh)
1795 struct elf32_hppa_link_hash_table *htab;
1798 /* If this is a function, put it in the procedure linkage table. We
1799 will fill in the contents of the procedure linkage table later. */
1800 if (eh->type == STT_FUNC
1803 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1804 The refcounts are not reliable when it has been hidden since
1805 hide_symbol can be called before the plabel flag is set. */
1806 if (hppa_elf_hash_entry (eh)->plabel
1807 && eh->plt.refcount <= 0)
1808 eh->plt.refcount = 1;
1810 if (eh->plt.refcount <= 0
1812 && eh->root.type != bfd_link_hash_defweak
1813 && ! hppa_elf_hash_entry (eh)->plabel
1814 && (!info->shared || info->symbolic)))
1816 /* The .plt entry is not needed when:
1817 a) Garbage collection has removed all references to the
1819 b) We know for certain the symbol is defined in this
1820 object, and it's not a weak definition, nor is the symbol
1821 used by a plabel relocation. Either this object is the
1822 application or we are doing a shared symbolic link. */
1824 eh->plt.offset = (bfd_vma) -1;
1831 eh->plt.offset = (bfd_vma) -1;
1833 /* If this is a weak symbol, and there is a real definition, the
1834 processor independent code will have arranged for us to see the
1835 real definition first, and we can just use the same value. */
1836 if (eh->u.weakdef != NULL)
1838 if (eh->u.weakdef->root.type != bfd_link_hash_defined
1839 && eh->u.weakdef->root.type != bfd_link_hash_defweak)
1841 eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1842 eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
1843 if (ELIMINATE_COPY_RELOCS)
1844 eh->non_got_ref = eh->u.weakdef->non_got_ref;
1848 /* This is a reference to a symbol defined by a dynamic object which
1849 is not a function. */
1851 /* If we are creating a shared library, we must presume that the
1852 only references to the symbol are via the global offset table.
1853 For such cases we need not do anything here; the relocations will
1854 be handled correctly by relocate_section. */
1858 /* If there are no references to this symbol that do not use the
1859 GOT, we don't need to generate a copy reloc. */
1860 if (!eh->non_got_ref)
1863 if (ELIMINATE_COPY_RELOCS)
1865 struct elf32_hppa_link_hash_entry *hh;
1866 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1868 hh = hppa_elf_hash_entry (eh);
1869 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
1871 sec = hdh_p->sec->output_section;
1872 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
1876 /* If we didn't find any dynamic relocs in read-only sections, then
1877 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1880 eh->non_got_ref = 0;
1885 /* We must allocate the symbol in our .dynbss section, which will
1886 become part of the .bss section of the executable. There will be
1887 an entry for this symbol in the .dynsym section. The dynamic
1888 object will contain position independent code, so all references
1889 from the dynamic object to this symbol will go through the global
1890 offset table. The dynamic linker will use the .dynsym entry to
1891 determine the address it must put in the global offset table, so
1892 both the dynamic object and the regular object will refer to the
1893 same memory location for the variable. */
1895 htab = hppa_link_hash_table (info);
1899 /* We must generate a COPY reloc to tell the dynamic linker to
1900 copy the initial value out of the dynamic object and into the
1901 runtime process image. */
1902 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
1904 htab->srelbss->size += sizeof (Elf32_External_Rela);
1908 sec = htab->sdynbss;
1910 return _bfd_elf_adjust_dynamic_copy (eh, sec);
1913 /* Allocate space in the .plt for entries that won't have relocations.
1914 ie. plabel entries. */
1917 allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
1919 struct bfd_link_info *info;
1920 struct elf32_hppa_link_hash_table *htab;
1921 struct elf32_hppa_link_hash_entry *hh;
1924 if (eh->root.type == bfd_link_hash_indirect)
1927 info = (struct bfd_link_info *) inf;
1928 hh = hppa_elf_hash_entry (eh);
1929 htab = hppa_link_hash_table (info);
1933 if (htab->etab.dynamic_sections_created
1934 && eh->plt.refcount > 0)
1936 /* Make sure this symbol is output as a dynamic symbol.
1937 Undefined weak syms won't yet be marked as dynamic. */
1938 if (eh->dynindx == -1
1939 && !eh->forced_local
1940 && eh->type != STT_PARISC_MILLI)
1942 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
1946 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, eh))
1948 /* Allocate these later. From this point on, h->plabel
1949 means that the plt entry is only used by a plabel.
1950 We'll be using a normal plt entry for this symbol, so
1951 clear the plabel indicator. */
1955 else if (hh->plabel)
1957 /* Make an entry in the .plt section for plabel references
1958 that won't have a .plt entry for other reasons. */
1960 eh->plt.offset = sec->size;
1961 sec->size += PLT_ENTRY_SIZE;
1965 /* No .plt entry needed. */
1966 eh->plt.offset = (bfd_vma) -1;
1972 eh->plt.offset = (bfd_vma) -1;
1979 /* Allocate space in .plt, .got and associated reloc sections for
1983 allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
1985 struct bfd_link_info *info;
1986 struct elf32_hppa_link_hash_table *htab;
1988 struct elf32_hppa_link_hash_entry *hh;
1989 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1991 if (eh->root.type == bfd_link_hash_indirect)
1995 htab = hppa_link_hash_table (info);
1999 hh = hppa_elf_hash_entry (eh);
2001 if (htab->etab.dynamic_sections_created
2002 && eh->plt.offset != (bfd_vma) -1
2004 && eh->plt.refcount > 0)
2006 /* Make an entry in the .plt section. */
2008 eh->plt.offset = sec->size;
2009 sec->size += PLT_ENTRY_SIZE;
2011 /* We also need to make an entry in the .rela.plt section. */
2012 htab->srelplt->size += sizeof (Elf32_External_Rela);
2013 htab->need_plt_stub = 1;
2016 if (eh->got.refcount > 0)
2018 /* Make sure this symbol is output as a dynamic symbol.
2019 Undefined weak syms won't yet be marked as dynamic. */
2020 if (eh->dynindx == -1
2021 && !eh->forced_local
2022 && eh->type != STT_PARISC_MILLI)
2024 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2029 eh->got.offset = sec->size;
2030 sec->size += GOT_ENTRY_SIZE;
2031 /* R_PARISC_TLS_GD* needs two GOT entries */
2032 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2033 sec->size += GOT_ENTRY_SIZE * 2;
2034 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2035 sec->size += GOT_ENTRY_SIZE;
2036 if (htab->etab.dynamic_sections_created
2038 || (eh->dynindx != -1
2039 && !eh->forced_local)))
2041 htab->srelgot->size += sizeof (Elf32_External_Rela);
2042 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2043 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
2044 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2045 htab->srelgot->size += sizeof (Elf32_External_Rela);
2049 eh->got.offset = (bfd_vma) -1;
2051 if (hh->dyn_relocs == NULL)
2054 /* If this is a -Bsymbolic shared link, then we need to discard all
2055 space allocated for dynamic pc-relative relocs against symbols
2056 defined in a regular object. For the normal shared case, discard
2057 space for relocs that have become local due to symbol visibility
2061 #if RELATIVE_DYNRELOCS
2062 if (SYMBOL_CALLS_LOCAL (info, eh))
2064 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
2066 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
2068 hdh_p->count -= hdh_p->relative_count;
2069 hdh_p->relative_count = 0;
2070 if (hdh_p->count == 0)
2071 *hdh_pp = hdh_p->hdh_next;
2073 hdh_pp = &hdh_p->hdh_next;
2078 /* Also discard relocs on undefined weak syms with non-default
2080 if (hh->dyn_relocs != NULL
2081 && eh->root.type == bfd_link_hash_undefweak)
2083 if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2084 hh->dyn_relocs = NULL;
2086 /* Make sure undefined weak symbols are output as a dynamic
2088 else if (eh->dynindx == -1
2089 && !eh->forced_local)
2091 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2098 /* For the non-shared case, discard space for relocs against
2099 symbols which turn out to need copy relocs or are not
2102 if (!eh->non_got_ref
2103 && ((ELIMINATE_COPY_RELOCS
2105 && !eh->def_regular)
2106 || (htab->etab.dynamic_sections_created
2107 && (eh->root.type == bfd_link_hash_undefweak
2108 || eh->root.type == bfd_link_hash_undefined))))
2110 /* Make sure this symbol is output as a dynamic symbol.
2111 Undefined weak syms won't yet be marked as dynamic. */
2112 if (eh->dynindx == -1
2113 && !eh->forced_local
2114 && eh->type != STT_PARISC_MILLI)
2116 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2120 /* If that succeeded, we know we'll be keeping all the
2122 if (eh->dynindx != -1)
2126 hh->dyn_relocs = NULL;
2132 /* Finally, allocate space. */
2133 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
2135 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2136 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
2142 /* This function is called via elf_link_hash_traverse to force
2143 millicode symbols local so they do not end up as globals in the
2144 dynamic symbol table. We ought to be able to do this in
2145 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2146 for all dynamic symbols. Arguably, this is a bug in
2147 elf_adjust_dynamic_symbol. */
2150 clobber_millicode_symbols (struct elf_link_hash_entry *eh,
2151 struct bfd_link_info *info)
2153 if (eh->type == STT_PARISC_MILLI
2154 && !eh->forced_local)
2156 elf32_hppa_hide_symbol (info, eh, TRUE);
2161 /* Find any dynamic relocs that apply to read-only sections. */
2164 readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
2166 struct elf32_hppa_link_hash_entry *hh;
2167 struct elf32_hppa_dyn_reloc_entry *hdh_p;
2169 hh = hppa_elf_hash_entry (eh);
2170 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
2172 asection *sec = hdh_p->sec->output_section;
2174 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
2176 struct bfd_link_info *info = inf;
2178 info->flags |= DF_TEXTREL;
2180 /* Not an error, just cut short the traversal. */
2187 /* Set the sizes of the dynamic sections. */
2190 elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2191 struct bfd_link_info *info)
2193 struct elf32_hppa_link_hash_table *htab;
2199 htab = hppa_link_hash_table (info);
2203 dynobj = htab->etab.dynobj;
2207 if (htab->etab.dynamic_sections_created)
2209 /* Set the contents of the .interp section to the interpreter. */
2210 if (info->executable)
2212 sec = bfd_get_linker_section (dynobj, ".interp");
2215 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2216 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2219 /* Force millicode symbols local. */
2220 elf_link_hash_traverse (&htab->etab,
2221 clobber_millicode_symbols,
2225 /* Set up .got and .plt offsets for local syms, and space for local
2227 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2229 bfd_signed_vma *local_got;
2230 bfd_signed_vma *end_local_got;
2231 bfd_signed_vma *local_plt;
2232 bfd_signed_vma *end_local_plt;
2233 bfd_size_type locsymcount;
2234 Elf_Internal_Shdr *symtab_hdr;
2236 char *local_tls_type;
2238 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2241 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
2243 struct elf32_hppa_dyn_reloc_entry *hdh_p;
2245 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2246 elf_section_data (sec)->local_dynrel);
2248 hdh_p = hdh_p->hdh_next)
2250 if (!bfd_is_abs_section (hdh_p->sec)
2251 && bfd_is_abs_section (hdh_p->sec->output_section))
2253 /* Input section has been discarded, either because
2254 it is a copy of a linkonce section or due to
2255 linker script /DISCARD/, so we'll be discarding
2258 else if (hdh_p->count != 0)
2260 srel = elf_section_data (hdh_p->sec)->sreloc;
2261 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2262 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
2263 info->flags |= DF_TEXTREL;
2268 local_got = elf_local_got_refcounts (ibfd);
2272 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2273 locsymcount = symtab_hdr->sh_info;
2274 end_local_got = local_got + locsymcount;
2275 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
2277 srel = htab->srelgot;
2278 for (; local_got < end_local_got; ++local_got)
2282 *local_got = sec->size;
2283 sec->size += GOT_ENTRY_SIZE;
2284 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2285 sec->size += 2 * GOT_ENTRY_SIZE;
2286 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2287 sec->size += GOT_ENTRY_SIZE;
2290 srel->size += sizeof (Elf32_External_Rela);
2291 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2292 srel->size += 2 * sizeof (Elf32_External_Rela);
2293 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2294 srel->size += sizeof (Elf32_External_Rela);
2298 *local_got = (bfd_vma) -1;
2303 local_plt = end_local_got;
2304 end_local_plt = local_plt + locsymcount;
2305 if (! htab->etab.dynamic_sections_created)
2307 /* Won't be used, but be safe. */
2308 for (; local_plt < end_local_plt; ++local_plt)
2309 *local_plt = (bfd_vma) -1;
2314 srel = htab->srelplt;
2315 for (; local_plt < end_local_plt; ++local_plt)
2319 *local_plt = sec->size;
2320 sec->size += PLT_ENTRY_SIZE;
2322 srel->size += sizeof (Elf32_External_Rela);
2325 *local_plt = (bfd_vma) -1;
2330 if (htab->tls_ldm_got.refcount > 0)
2332 /* Allocate 2 got entries and 1 dynamic reloc for
2333 R_PARISC_TLS_DTPMOD32 relocs. */
2334 htab->tls_ldm_got.offset = htab->sgot->size;
2335 htab->sgot->size += (GOT_ENTRY_SIZE * 2);
2336 htab->srelgot->size += sizeof (Elf32_External_Rela);
2339 htab->tls_ldm_got.offset = -1;
2341 /* Do all the .plt entries without relocs first. The dynamic linker
2342 uses the last .plt reloc to find the end of the .plt (and hence
2343 the start of the .got) for lazy linking. */
2344 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
2346 /* Allocate global sym .plt and .got entries, and space for global
2347 sym dynamic relocs. */
2348 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
2350 /* The check_relocs and adjust_dynamic_symbol entry points have
2351 determined the sizes of the various dynamic sections. Allocate
2354 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
2356 if ((sec->flags & SEC_LINKER_CREATED) == 0)
2359 if (sec == htab->splt)
2361 if (htab->need_plt_stub)
2363 /* Make space for the plt stub at the end of the .plt
2364 section. We want this stub right at the end, up
2365 against the .got section. */
2366 int gotalign = bfd_section_alignment (dynobj, htab->sgot);
2367 int pltalign = bfd_section_alignment (dynobj, sec);
2370 if (gotalign > pltalign)
2371 (void) bfd_set_section_alignment (dynobj, sec, gotalign);
2372 mask = ((bfd_size_type) 1 << gotalign) - 1;
2373 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
2376 else if (sec == htab->sgot
2377 || sec == htab->sdynbss)
2379 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
2383 /* Remember whether there are any reloc sections other
2385 if (sec != htab->srelplt)
2388 /* We use the reloc_count field as a counter if we need
2389 to copy relocs into the output file. */
2390 sec->reloc_count = 0;
2395 /* It's not one of our sections, so don't allocate space. */
2401 /* If we don't need this section, strip it from the
2402 output file. This is mostly to handle .rela.bss and
2403 .rela.plt. We must create both sections in
2404 create_dynamic_sections, because they must be created
2405 before the linker maps input sections to output
2406 sections. The linker does that before
2407 adjust_dynamic_symbol is called, and it is that
2408 function which decides whether anything needs to go
2409 into these sections. */
2410 sec->flags |= SEC_EXCLUDE;
2414 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2417 /* Allocate memory for the section contents. Zero it, because
2418 we may not fill in all the reloc sections. */
2419 sec->contents = bfd_zalloc (dynobj, sec->size);
2420 if (sec->contents == NULL)
2424 if (htab->etab.dynamic_sections_created)
2426 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2427 actually has nothing to do with the PLT, it is how we
2428 communicate the LTP value of a load module to the dynamic
2430 #define add_dynamic_entry(TAG, VAL) \
2431 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2433 if (!add_dynamic_entry (DT_PLTGOT, 0))
2436 /* Add some entries to the .dynamic section. We fill in the
2437 values later, in elf32_hppa_finish_dynamic_sections, but we
2438 must add the entries now so that we get the correct size for
2439 the .dynamic section. The DT_DEBUG entry is filled in by the
2440 dynamic linker and used by the debugger. */
2441 if (info->executable)
2443 if (!add_dynamic_entry (DT_DEBUG, 0))
2447 if (htab->srelplt->size != 0)
2449 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2450 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2451 || !add_dynamic_entry (DT_JMPREL, 0))
2457 if (!add_dynamic_entry (DT_RELA, 0)
2458 || !add_dynamic_entry (DT_RELASZ, 0)
2459 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
2462 /* If any dynamic relocs apply to a read-only section,
2463 then we need a DT_TEXTREL entry. */
2464 if ((info->flags & DF_TEXTREL) == 0)
2465 elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
2467 if ((info->flags & DF_TEXTREL) != 0)
2469 if (!add_dynamic_entry (DT_TEXTREL, 0))
2474 #undef add_dynamic_entry
2479 /* External entry points for sizing and building linker stubs. */
2481 /* Set up various things so that we can make a list of input sections
2482 for each output section included in the link. Returns -1 on error,
2483 0 when no stubs will be needed, and 1 on success. */
2486 elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
2489 unsigned int bfd_count;
2490 int top_id, top_index;
2492 asection **input_list, **list;
2494 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2499 /* Count the number of input BFDs and find the top input section id. */
2500 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
2502 input_bfd = input_bfd->link_next)
2505 for (section = input_bfd->sections;
2507 section = section->next)
2509 if (top_id < section->id)
2510 top_id = section->id;
2513 htab->bfd_count = bfd_count;
2515 amt = sizeof (struct map_stub) * (top_id + 1);
2516 htab->stub_group = bfd_zmalloc (amt);
2517 if (htab->stub_group == NULL)
2520 /* We can't use output_bfd->section_count here to find the top output
2521 section index as some sections may have been removed, and
2522 strip_excluded_output_sections doesn't renumber the indices. */
2523 for (section = output_bfd->sections, top_index = 0;
2525 section = section->next)
2527 if (top_index < section->index)
2528 top_index = section->index;
2531 htab->top_index = top_index;
2532 amt = sizeof (asection *) * (top_index + 1);
2533 input_list = bfd_malloc (amt);
2534 htab->input_list = input_list;
2535 if (input_list == NULL)
2538 /* For sections we aren't interested in, mark their entries with a
2539 value we can check later. */
2540 list = input_list + top_index;
2542 *list = bfd_abs_section_ptr;
2543 while (list-- != input_list);
2545 for (section = output_bfd->sections;
2547 section = section->next)
2549 if ((section->flags & SEC_CODE) != 0)
2550 input_list[section->index] = NULL;
2556 /* The linker repeatedly calls this function for each input section,
2557 in the order that input sections are linked into output sections.
2558 Build lists of input sections to determine groupings between which
2559 we may insert linker stubs. */
2562 elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
2564 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2569 if (isec->output_section->index <= htab->top_index)
2571 asection **list = htab->input_list + isec->output_section->index;
2572 if (*list != bfd_abs_section_ptr)
2574 /* Steal the link_sec pointer for our list. */
2575 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2576 /* This happens to make the list in reverse order,
2577 which is what we want. */
2578 PREV_SEC (isec) = *list;
2584 /* See whether we can group stub sections together. Grouping stub
2585 sections may result in fewer stubs. More importantly, we need to
2586 put all .init* and .fini* stubs at the beginning of the .init or
2587 .fini output sections respectively, because glibc splits the
2588 _init and _fini functions into multiple parts. Putting a stub in
2589 the middle of a function is not a good idea. */
2592 group_sections (struct elf32_hppa_link_hash_table *htab,
2593 bfd_size_type stub_group_size,
2594 bfd_boolean stubs_always_before_branch)
2596 asection **list = htab->input_list + htab->top_index;
2599 asection *tail = *list;
2600 if (tail == bfd_abs_section_ptr)
2602 while (tail != NULL)
2606 bfd_size_type total;
2607 bfd_boolean big_sec;
2611 big_sec = total >= stub_group_size;
2613 while ((prev = PREV_SEC (curr)) != NULL
2614 && ((total += curr->output_offset - prev->output_offset)
2618 /* OK, the size from the start of CURR to the end is less
2619 than 240000 bytes and thus can be handled by one stub
2620 section. (or the tail section is itself larger than
2621 240000 bytes, in which case we may be toast.)
2622 We should really be keeping track of the total size of
2623 stubs added here, as stubs contribute to the final output
2624 section size. That's a little tricky, and this way will
2625 only break if stubs added total more than 22144 bytes, or
2626 2768 long branch stubs. It seems unlikely for more than
2627 2768 different functions to be called, especially from
2628 code only 240000 bytes long. This limit used to be
2629 250000, but c++ code tends to generate lots of little
2630 functions, and sometimes violated the assumption. */
2633 prev = PREV_SEC (tail);
2634 /* Set up this stub group. */
2635 htab->stub_group[tail->id].link_sec = curr;
2637 while (tail != curr && (tail = prev) != NULL);
2639 /* But wait, there's more! Input sections up to 240000
2640 bytes before the stub section can be handled by it too.
2641 Don't do this if we have a really large section after the
2642 stubs, as adding more stubs increases the chance that
2643 branches may not reach into the stub section. */
2644 if (!stubs_always_before_branch && !big_sec)
2648 && ((total += tail->output_offset - prev->output_offset)
2652 prev = PREV_SEC (tail);
2653 htab->stub_group[tail->id].link_sec = curr;
2659 while (list-- != htab->input_list);
2660 free (htab->input_list);
2664 /* Read in all local syms for all input bfds, and create hash entries
2665 for export stubs if we are building a multi-subspace shared lib.
2666 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2669 get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
2671 unsigned int bfd_indx;
2672 Elf_Internal_Sym *local_syms, **all_local_syms;
2673 int stub_changed = 0;
2674 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2679 /* We want to read in symbol extension records only once. To do this
2680 we need to read in the local symbols in parallel and save them for
2681 later use; so hold pointers to the local symbols in an array. */
2682 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
2683 all_local_syms = bfd_zmalloc (amt);
2684 htab->all_local_syms = all_local_syms;
2685 if (all_local_syms == NULL)
2688 /* Walk over all the input BFDs, swapping in local symbols.
2689 If we are creating a shared library, create hash entries for the
2693 input_bfd = input_bfd->link_next, bfd_indx++)
2695 Elf_Internal_Shdr *symtab_hdr;
2697 /* We'll need the symbol table in a second. */
2698 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2699 if (symtab_hdr->sh_info == 0)
2702 /* We need an array of the local symbols attached to the input bfd. */
2703 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
2704 if (local_syms == NULL)
2706 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2707 symtab_hdr->sh_info, 0,
2709 /* Cache them for elf_link_input_bfd. */
2710 symtab_hdr->contents = (unsigned char *) local_syms;
2712 if (local_syms == NULL)
2715 all_local_syms[bfd_indx] = local_syms;
2717 if (info->shared && htab->multi_subspace)
2719 struct elf_link_hash_entry **eh_syms;
2720 struct elf_link_hash_entry **eh_symend;
2721 unsigned int symcount;
2723 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2724 - symtab_hdr->sh_info);
2725 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2726 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
2728 /* Look through the global syms for functions; We need to
2729 build export stubs for all globally visible functions. */
2730 for (; eh_syms < eh_symend; eh_syms++)
2732 struct elf32_hppa_link_hash_entry *hh;
2734 hh = hppa_elf_hash_entry (*eh_syms);
2736 while (hh->eh.root.type == bfd_link_hash_indirect
2737 || hh->eh.root.type == bfd_link_hash_warning)
2738 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2740 /* At this point in the link, undefined syms have been
2741 resolved, so we need to check that the symbol was
2742 defined in this BFD. */
2743 if ((hh->eh.root.type == bfd_link_hash_defined
2744 || hh->eh.root.type == bfd_link_hash_defweak)
2745 && hh->eh.type == STT_FUNC
2746 && hh->eh.root.u.def.section->output_section != NULL
2747 && (hh->eh.root.u.def.section->output_section->owner
2749 && hh->eh.root.u.def.section->owner == input_bfd
2750 && hh->eh.def_regular
2751 && !hh->eh.forced_local
2752 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
2755 const char *stub_name;
2756 struct elf32_hppa_stub_hash_entry *hsh;
2758 sec = hh->eh.root.u.def.section;
2759 stub_name = hh_name (hh);
2760 hsh = hppa_stub_hash_lookup (&htab->bstab,
2765 hsh = hppa_add_stub (stub_name, sec, htab);
2769 hsh->target_value = hh->eh.root.u.def.value;
2770 hsh->target_section = hh->eh.root.u.def.section;
2771 hsh->stub_type = hppa_stub_export;
2777 (*_bfd_error_handler) (_("%B: duplicate export stub %s"),
2786 return stub_changed;
2789 /* Determine and set the size of the stub section for a final link.
2791 The basic idea here is to examine all the relocations looking for
2792 PC-relative calls to a target that is unreachable with a "bl"
2796 elf32_hppa_size_stubs
2797 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2798 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2799 asection * (*add_stub_section) (const char *, asection *),
2800 void (*layout_sections_again) (void))
2802 bfd_size_type stub_group_size;
2803 bfd_boolean stubs_always_before_branch;
2804 bfd_boolean stub_changed;
2805 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2810 /* Stash our params away. */
2811 htab->stub_bfd = stub_bfd;
2812 htab->multi_subspace = multi_subspace;
2813 htab->add_stub_section = add_stub_section;
2814 htab->layout_sections_again = layout_sections_again;
2815 stubs_always_before_branch = group_size < 0;
2817 stub_group_size = -group_size;
2819 stub_group_size = group_size;
2820 if (stub_group_size == 1)
2822 /* Default values. */
2823 if (stubs_always_before_branch)
2825 stub_group_size = 7680000;
2826 if (htab->has_17bit_branch || htab->multi_subspace)
2827 stub_group_size = 240000;
2828 if (htab->has_12bit_branch)
2829 stub_group_size = 7500;
2833 stub_group_size = 6971392;
2834 if (htab->has_17bit_branch || htab->multi_subspace)
2835 stub_group_size = 217856;
2836 if (htab->has_12bit_branch)
2837 stub_group_size = 6808;
2841 group_sections (htab, stub_group_size, stubs_always_before_branch);
2843 switch (get_local_syms (output_bfd, info->input_bfds, info))
2846 if (htab->all_local_syms)
2847 goto error_ret_free_local;
2851 stub_changed = FALSE;
2855 stub_changed = TRUE;
2862 unsigned int bfd_indx;
2865 for (input_bfd = info->input_bfds, bfd_indx = 0;
2867 input_bfd = input_bfd->link_next, bfd_indx++)
2869 Elf_Internal_Shdr *symtab_hdr;
2871 Elf_Internal_Sym *local_syms;
2873 /* We'll need the symbol table in a second. */
2874 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2875 if (symtab_hdr->sh_info == 0)
2878 local_syms = htab->all_local_syms[bfd_indx];
2880 /* Walk over each section attached to the input bfd. */
2881 for (section = input_bfd->sections;
2883 section = section->next)
2885 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2887 /* If there aren't any relocs, then there's nothing more
2889 if ((section->flags & SEC_RELOC) == 0
2890 || section->reloc_count == 0)
2893 /* If this section is a link-once section that will be
2894 discarded, then don't create any stubs. */
2895 if (section->output_section == NULL
2896 || section->output_section->owner != output_bfd)
2899 /* Get the relocs. */
2901 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
2903 if (internal_relocs == NULL)
2904 goto error_ret_free_local;
2906 /* Now examine each relocation. */
2907 irela = internal_relocs;
2908 irelaend = irela + section->reloc_count;
2909 for (; irela < irelaend; irela++)
2911 unsigned int r_type, r_indx;
2912 enum elf32_hppa_stub_type stub_type;
2913 struct elf32_hppa_stub_hash_entry *hsh;
2916 bfd_vma destination;
2917 struct elf32_hppa_link_hash_entry *hh;
2919 const asection *id_sec;
2921 r_type = ELF32_R_TYPE (irela->r_info);
2922 r_indx = ELF32_R_SYM (irela->r_info);
2924 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2926 bfd_set_error (bfd_error_bad_value);
2927 error_ret_free_internal:
2928 if (elf_section_data (section)->relocs == NULL)
2929 free (internal_relocs);
2930 goto error_ret_free_local;
2933 /* Only look for stubs on call instructions. */
2934 if (r_type != (unsigned int) R_PARISC_PCREL12F
2935 && r_type != (unsigned int) R_PARISC_PCREL17F
2936 && r_type != (unsigned int) R_PARISC_PCREL22F)
2939 /* Now determine the call target, its name, value,
2945 if (r_indx < symtab_hdr->sh_info)
2947 /* It's a local symbol. */
2948 Elf_Internal_Sym *sym;
2949 Elf_Internal_Shdr *hdr;
2952 sym = local_syms + r_indx;
2953 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2954 sym_value = sym->st_value;
2955 shndx = sym->st_shndx;
2956 if (shndx < elf_numsections (input_bfd))
2958 hdr = elf_elfsections (input_bfd)[shndx];
2959 sym_sec = hdr->bfd_section;
2960 destination = (sym_value + irela->r_addend
2961 + sym_sec->output_offset
2962 + sym_sec->output_section->vma);
2967 /* It's an external symbol. */
2970 e_indx = r_indx - symtab_hdr->sh_info;
2971 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
2973 while (hh->eh.root.type == bfd_link_hash_indirect
2974 || hh->eh.root.type == bfd_link_hash_warning)
2975 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2977 if (hh->eh.root.type == bfd_link_hash_defined
2978 || hh->eh.root.type == bfd_link_hash_defweak)
2980 sym_sec = hh->eh.root.u.def.section;
2981 sym_value = hh->eh.root.u.def.value;
2982 if (sym_sec->output_section != NULL)
2983 destination = (sym_value + irela->r_addend
2984 + sym_sec->output_offset
2985 + sym_sec->output_section->vma);
2987 else if (hh->eh.root.type == bfd_link_hash_undefweak)
2992 else if (hh->eh.root.type == bfd_link_hash_undefined)
2994 if (! (info->unresolved_syms_in_objects == RM_IGNORE
2995 && (ELF_ST_VISIBILITY (hh->eh.other)
2997 && hh->eh.type != STT_PARISC_MILLI))
3002 bfd_set_error (bfd_error_bad_value);
3003 goto error_ret_free_internal;
3007 /* Determine what (if any) linker stub is needed. */
3008 stub_type = hppa_type_of_stub (section, irela, hh,
3010 if (stub_type == hppa_stub_none)
3013 /* Support for grouping stub sections. */
3014 id_sec = htab->stub_group[section->id].link_sec;
3016 /* Get the name of this stub. */
3017 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
3019 goto error_ret_free_internal;
3021 hsh = hppa_stub_hash_lookup (&htab->bstab,
3026 /* The proper stub has already been created. */
3031 hsh = hppa_add_stub (stub_name, section, htab);
3035 goto error_ret_free_internal;
3038 hsh->target_value = sym_value;
3039 hsh->target_section = sym_sec;
3040 hsh->stub_type = stub_type;
3043 if (stub_type == hppa_stub_import)
3044 hsh->stub_type = hppa_stub_import_shared;
3045 else if (stub_type == hppa_stub_long_branch)
3046 hsh->stub_type = hppa_stub_long_branch_shared;
3049 stub_changed = TRUE;
3052 /* We're done with the internal relocs, free them. */
3053 if (elf_section_data (section)->relocs == NULL)
3054 free (internal_relocs);
3061 /* OK, we've added some stubs. Find out the new size of the
3063 for (stub_sec = htab->stub_bfd->sections;
3065 stub_sec = stub_sec->next)
3068 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
3070 /* Ask the linker to do its stuff. */
3071 (*htab->layout_sections_again) ();
3072 stub_changed = FALSE;
3075 free (htab->all_local_syms);
3078 error_ret_free_local:
3079 free (htab->all_local_syms);
3083 /* For a final link, this function is called after we have sized the
3084 stubs to provide a value for __gp. */
3087 elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
3089 struct bfd_link_hash_entry *h;
3090 asection *sec = NULL;
3092 struct elf32_hppa_link_hash_table *htab;
3094 htab = hppa_link_hash_table (info);
3098 h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE);
3101 && (h->type == bfd_link_hash_defined
3102 || h->type == bfd_link_hash_defweak))
3104 gp_val = h->u.def.value;
3105 sec = h->u.def.section;
3109 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3110 asection *sgot = bfd_get_section_by_name (abfd, ".got");
3112 /* Choose to point our LTP at, in this order, one of .plt, .got,
3113 or .data, if these sections exist. In the case of choosing
3114 .plt try to make the LTP ideal for addressing anywhere in the
3115 .plt or .got with a 14 bit signed offset. Typically, the end
3116 of the .plt is the start of the .got, so choose .plt + 0x2000
3117 if either the .plt or .got is larger than 0x2000. If both
3118 the .plt and .got are smaller than 0x2000, choose the end of
3119 the .plt section. */
3120 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3125 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
3135 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3137 /* We know we don't have a .plt. If .got is large,
3139 if (sec->size > 0x2000)
3145 /* No .plt or .got. Who cares what the LTP is? */
3146 sec = bfd_get_section_by_name (abfd, ".data");
3152 h->type = bfd_link_hash_defined;
3153 h->u.def.value = gp_val;
3155 h->u.def.section = sec;
3157 h->u.def.section = bfd_abs_section_ptr;
3161 if (sec != NULL && sec->output_section != NULL)
3162 gp_val += sec->output_section->vma + sec->output_offset;
3164 elf_gp (abfd) = gp_val;
3168 /* Build all the stubs associated with the current output file. The
3169 stubs are kept in a hash table attached to the main linker hash
3170 table. We also set up the .plt entries for statically linked PIC
3171 functions here. This function is called via hppaelf_finish in the
3175 elf32_hppa_build_stubs (struct bfd_link_info *info)
3178 struct bfd_hash_table *table;
3179 struct elf32_hppa_link_hash_table *htab;
3181 htab = hppa_link_hash_table (info);
3185 for (stub_sec = htab->stub_bfd->sections;
3187 stub_sec = stub_sec->next)
3191 /* Allocate memory to hold the linker stubs. */
3192 size = stub_sec->size;
3193 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
3194 if (stub_sec->contents == NULL && size != 0)
3199 /* Build the stubs as directed by the stub hash table. */
3200 table = &htab->bstab;
3201 bfd_hash_traverse (table, hppa_build_one_stub, info);
3206 /* Return the base vma address which should be subtracted from the real
3207 address when resolving a dtpoff relocation.
3208 This is PT_TLS segment p_vaddr. */
3211 dtpoff_base (struct bfd_link_info *info)
3213 /* If tls_sec is NULL, we should have signalled an error already. */
3214 if (elf_hash_table (info)->tls_sec == NULL)
3216 return elf_hash_table (info)->tls_sec->vma;
3219 /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3222 tpoff (struct bfd_link_info *info, bfd_vma address)
3224 struct elf_link_hash_table *htab = elf_hash_table (info);
3226 /* If tls_sec is NULL, we should have signalled an error already. */
3227 if (htab->tls_sec == NULL)
3229 /* hppa TLS ABI is variant I and static TLS block start just after
3230 tcbhead structure which has 2 pointer fields. */
3231 return (address - htab->tls_sec->vma
3232 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3235 /* Perform a final link. */
3238 elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
3240 /* Invoke the regular ELF linker to do all the work. */
3241 if (!bfd_elf_final_link (abfd, info))
3244 /* If we're producing a final executable, sort the contents of the
3246 if (info->relocatable)
3249 return elf_hppa_sort_unwind (abfd);
3252 /* Record the lowest address for the data and text segments. */
3255 hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
3257 struct elf32_hppa_link_hash_table *htab;
3259 htab = (struct elf32_hppa_link_hash_table*) data;
3263 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3266 Elf_Internal_Phdr *p;
3268 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3269 BFD_ASSERT (p != NULL);
3272 if ((section->flags & SEC_READONLY) != 0)
3274 if (value < htab->text_segment_base)
3275 htab->text_segment_base = value;
3279 if (value < htab->data_segment_base)
3280 htab->data_segment_base = value;
3285 /* Perform a relocation as part of a final link. */
3287 static bfd_reloc_status_type
3288 final_link_relocate (asection *input_section,
3290 const Elf_Internal_Rela *rela,
3292 struct elf32_hppa_link_hash_table *htab,
3294 struct elf32_hppa_link_hash_entry *hh,
3295 struct bfd_link_info *info)
3298 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
3299 unsigned int orig_r_type = r_type;
3300 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3301 int r_format = howto->bitsize;
3302 enum hppa_reloc_field_selector_type_alt r_field;
3303 bfd *input_bfd = input_section->owner;
3304 bfd_vma offset = rela->r_offset;
3305 bfd_vma max_branch_offset = 0;
3306 bfd_byte *hit_data = contents + offset;
3307 bfd_signed_vma addend = rela->r_addend;
3309 struct elf32_hppa_stub_hash_entry *hsh = NULL;
3312 if (r_type == R_PARISC_NONE)
3313 return bfd_reloc_ok;
3315 insn = bfd_get_32 (input_bfd, hit_data);
3317 /* Find out where we are and where we're going. */
3318 location = (offset +
3319 input_section->output_offset +
3320 input_section->output_section->vma);
3322 /* If we are not building a shared library, convert DLTIND relocs to
3328 case R_PARISC_DLTIND21L:
3329 case R_PARISC_TLS_GD21L:
3330 case R_PARISC_TLS_LDM21L:
3331 case R_PARISC_TLS_IE21L:
3332 r_type = R_PARISC_DPREL21L;
3335 case R_PARISC_DLTIND14R:
3336 case R_PARISC_TLS_GD14R:
3337 case R_PARISC_TLS_LDM14R:
3338 case R_PARISC_TLS_IE14R:
3339 r_type = R_PARISC_DPREL14R;
3342 case R_PARISC_DLTIND14F:
3343 r_type = R_PARISC_DPREL14F;
3350 case R_PARISC_PCREL12F:
3351 case R_PARISC_PCREL17F:
3352 case R_PARISC_PCREL22F:
3353 /* If this call should go via the plt, find the import stub in
3356 || sym_sec->output_section == NULL
3358 && hh->eh.plt.offset != (bfd_vma) -1
3359 && hh->eh.dynindx != -1
3362 || !hh->eh.def_regular
3363 || hh->eh.root.type == bfd_link_hash_defweak)))
3365 hsh = hppa_get_stub_entry (input_section, sym_sec,
3369 value = (hsh->stub_offset
3370 + hsh->stub_sec->output_offset
3371 + hsh->stub_sec->output_section->vma);
3374 else if (sym_sec == NULL && hh != NULL
3375 && hh->eh.root.type == bfd_link_hash_undefweak)
3377 /* It's OK if undefined weak. Calls to undefined weak
3378 symbols behave as if the "called" function
3379 immediately returns. We can thus call to a weak
3380 function without first checking whether the function
3386 return bfd_reloc_undefined;
3390 case R_PARISC_PCREL21L:
3391 case R_PARISC_PCREL17C:
3392 case R_PARISC_PCREL17R:
3393 case R_PARISC_PCREL14R:
3394 case R_PARISC_PCREL14F:
3395 case R_PARISC_PCREL32:
3396 /* Make it a pc relative offset. */
3401 case R_PARISC_DPREL21L:
3402 case R_PARISC_DPREL14R:
3403 case R_PARISC_DPREL14F:
3404 /* Convert instructions that use the linkage table pointer (r19) to
3405 instructions that use the global data pointer (dp). This is the
3406 most efficient way of using PIC code in an incomplete executable,
3407 but the user must follow the standard runtime conventions for
3408 accessing data for this to work. */
3409 if (orig_r_type != r_type)
3411 if (r_type == R_PARISC_DPREL21L)
3413 /* GCC sometimes uses a register other than r19 for the
3414 operation, so we must convert any addil instruction
3415 that uses this relocation. */
3416 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3419 /* We must have a ldil instruction. It's too hard to find
3420 and convert the associated add instruction, so issue an
3422 (*_bfd_error_handler)
3423 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3430 else if (r_type == R_PARISC_DPREL14F)
3432 /* This must be a format 1 load/store. Change the base
3434 insn = (insn & 0xfc1ffff) | (27 << 21);
3438 /* For all the DP relative relocations, we need to examine the symbol's
3439 section. If it has no section or if it's a code section, then
3440 "data pointer relative" makes no sense. In that case we don't
3441 adjust the "value", and for 21 bit addil instructions, we change the
3442 source addend register from %dp to %r0. This situation commonly
3443 arises for undefined weak symbols and when a variable's "constness"
3444 is declared differently from the way the variable is defined. For
3445 instance: "extern int foo" with foo defined as "const int foo". */
3446 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
3448 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3449 == (((int) OP_ADDIL << 26) | (27 << 21)))
3451 insn &= ~ (0x1f << 21);
3453 /* Now try to make things easy for the dynamic linker. */
3459 case R_PARISC_DLTIND21L:
3460 case R_PARISC_DLTIND14R:
3461 case R_PARISC_DLTIND14F:
3462 case R_PARISC_TLS_GD21L:
3463 case R_PARISC_TLS_LDM21L:
3464 case R_PARISC_TLS_IE21L:
3465 case R_PARISC_TLS_GD14R:
3466 case R_PARISC_TLS_LDM14R:
3467 case R_PARISC_TLS_IE14R:
3468 value -= elf_gp (input_section->output_section->owner);
3471 case R_PARISC_SEGREL32:
3472 if ((sym_sec->flags & SEC_CODE) != 0)
3473 value -= htab->text_segment_base;
3475 value -= htab->data_segment_base;
3484 case R_PARISC_DIR32:
3485 case R_PARISC_DIR14F:
3486 case R_PARISC_DIR17F:
3487 case R_PARISC_PCREL17C:
3488 case R_PARISC_PCREL14F:
3489 case R_PARISC_PCREL32:
3490 case R_PARISC_DPREL14F:
3491 case R_PARISC_PLABEL32:
3492 case R_PARISC_DLTIND14F:
3493 case R_PARISC_SEGBASE:
3494 case R_PARISC_SEGREL32:
3495 case R_PARISC_TLS_DTPMOD32:
3496 case R_PARISC_TLS_DTPOFF32:
3497 case R_PARISC_TLS_TPREL32:
3501 case R_PARISC_DLTIND21L:
3502 case R_PARISC_PCREL21L:
3503 case R_PARISC_PLABEL21L:
3507 case R_PARISC_DIR21L:
3508 case R_PARISC_DPREL21L:
3509 case R_PARISC_TLS_GD21L:
3510 case R_PARISC_TLS_LDM21L:
3511 case R_PARISC_TLS_LDO21L:
3512 case R_PARISC_TLS_IE21L:
3513 case R_PARISC_TLS_LE21L:
3517 case R_PARISC_PCREL17R:
3518 case R_PARISC_PCREL14R:
3519 case R_PARISC_PLABEL14R:
3520 case R_PARISC_DLTIND14R:
3524 case R_PARISC_DIR17R:
3525 case R_PARISC_DIR14R:
3526 case R_PARISC_DPREL14R:
3527 case R_PARISC_TLS_GD14R:
3528 case R_PARISC_TLS_LDM14R:
3529 case R_PARISC_TLS_LDO14R:
3530 case R_PARISC_TLS_IE14R:
3531 case R_PARISC_TLS_LE14R:
3535 case R_PARISC_PCREL12F:
3536 case R_PARISC_PCREL17F:
3537 case R_PARISC_PCREL22F:
3540 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3542 max_branch_offset = (1 << (17-1)) << 2;
3544 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3546 max_branch_offset = (1 << (12-1)) << 2;
3550 max_branch_offset = (1 << (22-1)) << 2;
3553 /* sym_sec is NULL on undefined weak syms or when shared on
3554 undefined syms. We've already checked for a stub for the
3555 shared undefined case. */
3556 if (sym_sec == NULL)
3559 /* If the branch is out of reach, then redirect the
3560 call to the local stub for this function. */
3561 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3563 hsh = hppa_get_stub_entry (input_section, sym_sec,
3566 return bfd_reloc_undefined;
3568 /* Munge up the value and addend so that we call the stub
3569 rather than the procedure directly. */
3570 value = (hsh->stub_offset
3571 + hsh->stub_sec->output_offset
3572 + hsh->stub_sec->output_section->vma
3578 /* Something we don't know how to handle. */
3580 return bfd_reloc_notsupported;
3583 /* Make sure we can reach the stub. */
3584 if (max_branch_offset != 0
3585 && value + addend + max_branch_offset >= 2*max_branch_offset)
3587 (*_bfd_error_handler)
3588 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3592 hsh->bh_root.string);
3593 bfd_set_error (bfd_error_bad_value);
3594 return bfd_reloc_notsupported;
3597 val = hppa_field_adjust (value, addend, r_field);
3601 case R_PARISC_PCREL12F:
3602 case R_PARISC_PCREL17C:
3603 case R_PARISC_PCREL17F:
3604 case R_PARISC_PCREL17R:
3605 case R_PARISC_PCREL22F:
3606 case R_PARISC_DIR17F:
3607 case R_PARISC_DIR17R:
3608 /* This is a branch. Divide the offset by four.
3609 Note that we need to decide whether it's a branch or
3610 otherwise by inspecting the reloc. Inspecting insn won't
3611 work as insn might be from a .word directive. */
3619 insn = hppa_rebuild_insn (insn, val, r_format);
3621 /* Update the instruction word. */
3622 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
3623 return bfd_reloc_ok;
3626 /* Relocate an HPPA ELF section. */
3629 elf32_hppa_relocate_section (bfd *output_bfd,
3630 struct bfd_link_info *info,
3632 asection *input_section,
3634 Elf_Internal_Rela *relocs,
3635 Elf_Internal_Sym *local_syms,
3636 asection **local_sections)
3638 bfd_vma *local_got_offsets;
3639 struct elf32_hppa_link_hash_table *htab;
3640 Elf_Internal_Shdr *symtab_hdr;
3641 Elf_Internal_Rela *rela;
3642 Elf_Internal_Rela *relend;
3644 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3646 htab = hppa_link_hash_table (info);
3650 local_got_offsets = elf_local_got_offsets (input_bfd);
3653 relend = relocs + input_section->reloc_count;
3654 for (; rela < relend; rela++)
3656 unsigned int r_type;
3657 reloc_howto_type *howto;
3658 unsigned int r_symndx;
3659 struct elf32_hppa_link_hash_entry *hh;
3660 Elf_Internal_Sym *sym;
3663 bfd_reloc_status_type rstatus;
3664 const char *sym_name;
3666 bfd_boolean warned_undef;
3668 r_type = ELF32_R_TYPE (rela->r_info);
3669 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3671 bfd_set_error (bfd_error_bad_value);
3674 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3675 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3678 r_symndx = ELF32_R_SYM (rela->r_info);
3682 warned_undef = FALSE;
3683 if (r_symndx < symtab_hdr->sh_info)
3685 /* This is a local symbol, h defaults to NULL. */
3686 sym = local_syms + r_symndx;
3687 sym_sec = local_sections[r_symndx];
3688 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
3692 struct elf_link_hash_entry *eh;
3693 bfd_boolean unresolved_reloc;
3694 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
3696 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
3697 r_symndx, symtab_hdr, sym_hashes,
3698 eh, sym_sec, relocation,
3699 unresolved_reloc, warned_undef);
3701 if (!info->relocatable
3703 && eh->root.type != bfd_link_hash_defined
3704 && eh->root.type != bfd_link_hash_defweak
3705 && eh->root.type != bfd_link_hash_undefweak)
3707 if (info->unresolved_syms_in_objects == RM_IGNORE
3708 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3709 && eh->type == STT_PARISC_MILLI)
3711 if (! info->callbacks->undefined_symbol
3712 (info, eh_name (eh), input_bfd,
3713 input_section, rela->r_offset, FALSE))
3715 warned_undef = TRUE;
3718 hh = hppa_elf_hash_entry (eh);
3721 if (sym_sec != NULL && discarded_section (sym_sec))
3722 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3724 elf_hppa_howto_table + r_type, 0,
3727 if (info->relocatable)
3730 /* Do any required modifications to the relocation value, and
3731 determine what types of dynamic info we need to output, if
3736 case R_PARISC_DLTIND14F:
3737 case R_PARISC_DLTIND14R:
3738 case R_PARISC_DLTIND21L:
3741 bfd_boolean do_got = 0;
3743 /* Relocation is to the entry for this symbol in the
3744 global offset table. */
3749 off = hh->eh.got.offset;
3750 dyn = htab->etab.dynamic_sections_created;
3751 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
3754 /* If we aren't going to call finish_dynamic_symbol,
3755 then we need to handle initialisation of the .got
3756 entry and create needed relocs here. Since the
3757 offset must always be a multiple of 4, we use the
3758 least significant bit to record whether we have
3759 initialised it already. */
3764 hh->eh.got.offset |= 1;
3771 /* Local symbol case. */
3772 if (local_got_offsets == NULL)
3775 off = local_got_offsets[r_symndx];
3777 /* The offset must always be a multiple of 4. We use
3778 the least significant bit to record whether we have
3779 already generated the necessary reloc. */
3784 local_got_offsets[r_symndx] |= 1;
3793 /* Output a dynamic relocation for this GOT entry.
3794 In this case it is relative to the base of the
3795 object because the symbol index is zero. */
3796 Elf_Internal_Rela outrel;
3798 asection *sec = htab->srelgot;
3800 outrel.r_offset = (off
3801 + htab->sgot->output_offset
3802 + htab->sgot->output_section->vma);
3803 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3804 outrel.r_addend = relocation;
3805 loc = sec->contents;
3806 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
3807 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3810 bfd_put_32 (output_bfd, relocation,
3811 htab->sgot->contents + off);
3814 if (off >= (bfd_vma) -2)
3817 /* Add the base of the GOT to the relocation value. */
3819 + htab->sgot->output_offset
3820 + htab->sgot->output_section->vma);
3824 case R_PARISC_SEGREL32:
3825 /* If this is the first SEGREL relocation, then initialize
3826 the segment base values. */
3827 if (htab->text_segment_base == (bfd_vma) -1)
3828 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
3831 case R_PARISC_PLABEL14R:
3832 case R_PARISC_PLABEL21L:
3833 case R_PARISC_PLABEL32:
3834 if (htab->etab.dynamic_sections_created)
3837 bfd_boolean do_plt = 0;
3838 /* If we have a global symbol with a PLT slot, then
3839 redirect this relocation to it. */
3842 off = hh->eh.plt.offset;
3843 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared,
3846 /* In a non-shared link, adjust_dynamic_symbols
3847 isn't called for symbols forced local. We
3848 need to write out the plt entry here. */
3853 hh->eh.plt.offset |= 1;
3860 bfd_vma *local_plt_offsets;
3862 if (local_got_offsets == NULL)
3865 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3866 off = local_plt_offsets[r_symndx];
3868 /* As for the local .got entry case, we use the last
3869 bit to record whether we've already initialised
3870 this local .plt entry. */
3875 local_plt_offsets[r_symndx] |= 1;
3884 /* Output a dynamic IPLT relocation for this
3886 Elf_Internal_Rela outrel;
3888 asection *s = htab->srelplt;
3890 outrel.r_offset = (off
3891 + htab->splt->output_offset
3892 + htab->splt->output_section->vma);
3893 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3894 outrel.r_addend = relocation;
3896 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
3897 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3901 bfd_put_32 (output_bfd,
3903 htab->splt->contents + off);
3904 bfd_put_32 (output_bfd,
3905 elf_gp (htab->splt->output_section->owner),
3906 htab->splt->contents + off + 4);
3910 if (off >= (bfd_vma) -2)
3913 /* PLABELs contain function pointers. Relocation is to
3914 the entry for the function in the .plt. The magic +2
3915 offset signals to $$dyncall that the function pointer
3916 is in the .plt and thus has a gp pointer too.
3917 Exception: Undefined PLABELs should have a value of
3920 || (hh->eh.root.type != bfd_link_hash_undefweak
3921 && hh->eh.root.type != bfd_link_hash_undefined))
3924 + htab->splt->output_offset
3925 + htab->splt->output_section->vma
3930 /* Fall through and possibly emit a dynamic relocation. */
3932 case R_PARISC_DIR17F:
3933 case R_PARISC_DIR17R:
3934 case R_PARISC_DIR14F:
3935 case R_PARISC_DIR14R:
3936 case R_PARISC_DIR21L:
3937 case R_PARISC_DPREL14F:
3938 case R_PARISC_DPREL14R:
3939 case R_PARISC_DPREL21L:
3940 case R_PARISC_DIR32:
3941 if ((input_section->flags & SEC_ALLOC) == 0)
3944 /* The reloc types handled here and this conditional
3945 expression must match the code in ..check_relocs and
3946 allocate_dynrelocs. ie. We need exactly the same condition
3947 as in ..check_relocs, with some extra conditions (dynindx
3948 test in this case) to cater for relocs removed by
3949 allocate_dynrelocs. If you squint, the non-shared test
3950 here does indeed match the one in ..check_relocs, the
3951 difference being that here we test DEF_DYNAMIC as well as
3952 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3953 which is why we can't use just that test here.
3954 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3955 there all files have not been loaded. */
3958 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3959 || hh->eh.root.type != bfd_link_hash_undefweak)
3960 && (IS_ABSOLUTE_RELOC (r_type)
3961 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
3964 && hh->eh.dynindx != -1
3965 && !hh->eh.non_got_ref
3966 && ((ELIMINATE_COPY_RELOCS
3967 && hh->eh.def_dynamic
3968 && !hh->eh.def_regular)
3969 || hh->eh.root.type == bfd_link_hash_undefweak
3970 || hh->eh.root.type == bfd_link_hash_undefined)))
3972 Elf_Internal_Rela outrel;
3977 /* When generating a shared object, these relocations
3978 are copied into the output file to be resolved at run
3981 outrel.r_addend = rela->r_addend;
3983 _bfd_elf_section_offset (output_bfd, info, input_section,
3985 skip = (outrel.r_offset == (bfd_vma) -1
3986 || outrel.r_offset == (bfd_vma) -2);
3987 outrel.r_offset += (input_section->output_offset
3988 + input_section->output_section->vma);
3992 memset (&outrel, 0, sizeof (outrel));
3995 && hh->eh.dynindx != -1
3997 || !IS_ABSOLUTE_RELOC (r_type)
4000 || !hh->eh.def_regular))
4002 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
4004 else /* It's a local symbol, or one marked to become local. */
4008 /* Add the absolute offset of the symbol. */
4009 outrel.r_addend += relocation;
4011 /* Global plabels need to be processed by the
4012 dynamic linker so that functions have at most one
4013 fptr. For this reason, we need to differentiate
4014 between global and local plabels, which we do by
4015 providing the function symbol for a global plabel
4016 reloc, and no symbol for local plabels. */
4019 && sym_sec->output_section != NULL
4020 && ! bfd_is_abs_section (sym_sec))
4024 osec = sym_sec->output_section;
4025 indx = elf_section_data (osec)->dynindx;
4028 osec = htab->etab.text_index_section;
4029 indx = elf_section_data (osec)->dynindx;
4031 BFD_ASSERT (indx != 0);
4033 /* We are turning this relocation into one
4034 against a section symbol, so subtract out the
4035 output section's address but not the offset
4036 of the input section in the output section. */
4037 outrel.r_addend -= osec->vma;
4040 outrel.r_info = ELF32_R_INFO (indx, r_type);
4042 sreloc = elf_section_data (input_section)->sreloc;
4046 loc = sreloc->contents;
4047 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
4048 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4052 case R_PARISC_TLS_LDM21L:
4053 case R_PARISC_TLS_LDM14R:
4057 off = htab->tls_ldm_got.offset;
4062 Elf_Internal_Rela outrel;
4065 outrel.r_offset = (off
4066 + htab->sgot->output_section->vma
4067 + htab->sgot->output_offset);
4068 outrel.r_addend = 0;
4069 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
4070 loc = htab->srelgot->contents;
4071 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4073 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4074 htab->tls_ldm_got.offset |= 1;
4077 /* Add the base of the GOT to the relocation value. */
4079 + htab->sgot->output_offset
4080 + htab->sgot->output_section->vma);
4085 case R_PARISC_TLS_LDO21L:
4086 case R_PARISC_TLS_LDO14R:
4087 relocation -= dtpoff_base (info);
4090 case R_PARISC_TLS_GD21L:
4091 case R_PARISC_TLS_GD14R:
4092 case R_PARISC_TLS_IE21L:
4093 case R_PARISC_TLS_IE14R:
4103 dyn = htab->etab.dynamic_sections_created;
4105 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, &hh->eh)
4107 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4109 indx = hh->eh.dynindx;
4111 off = hh->eh.got.offset;
4112 tls_type = hh->tls_type;
4116 off = local_got_offsets[r_symndx];
4117 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4120 if (tls_type == GOT_UNKNOWN)
4127 bfd_boolean need_relocs = FALSE;
4128 Elf_Internal_Rela outrel;
4129 bfd_byte *loc = NULL;
4132 /* The GOT entries have not been initialized yet. Do it
4133 now, and emit any relocations. If both an IE GOT and a
4134 GD GOT are necessary, we emit the GD first. */
4136 if ((info->shared || indx != 0)
4138 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4139 || hh->eh.root.type != bfd_link_hash_undefweak))
4142 loc = htab->srelgot->contents;
4143 /* FIXME (CAO): Should this be reloc_count++ ? */
4144 loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela);
4147 if (tls_type & GOT_TLS_GD)
4151 outrel.r_offset = (cur_off
4152 + htab->sgot->output_section->vma
4153 + htab->sgot->output_offset);
4154 outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4155 outrel.r_addend = 0;
4156 bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off);
4157 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4158 htab->srelgot->reloc_count++;
4159 loc += sizeof (Elf32_External_Rela);
4162 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4163 htab->sgot->contents + cur_off + 4);
4166 bfd_put_32 (output_bfd, 0,
4167 htab->sgot->contents + cur_off + 4);
4168 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4169 outrel.r_offset += 4;
4170 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
4171 htab->srelgot->reloc_count++;
4172 loc += sizeof (Elf32_External_Rela);
4177 /* If we are not emitting relocations for a
4178 general dynamic reference, then we must be in a
4179 static link or an executable link with the
4180 symbol binding locally. Mark it as belonging
4181 to module 1, the executable. */
4182 bfd_put_32 (output_bfd, 1,
4183 htab->sgot->contents + cur_off);
4184 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4185 htab->sgot->contents + cur_off + 4);
4192 if (tls_type & GOT_TLS_IE)
4196 outrel.r_offset = (cur_off
4197 + htab->sgot->output_section->vma
4198 + htab->sgot->output_offset);
4199 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4202 outrel.r_addend = relocation - dtpoff_base (info);
4204 outrel.r_addend = 0;
4206 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4207 htab->srelgot->reloc_count++;
4208 loc += sizeof (Elf32_External_Rela);
4211 bfd_put_32 (output_bfd, tpoff (info, relocation),
4212 htab->sgot->contents + cur_off);
4218 hh->eh.got.offset |= 1;
4220 local_got_offsets[r_symndx] |= 1;
4223 if ((tls_type & GOT_TLS_GD)
4224 && r_type != R_PARISC_TLS_GD21L
4225 && r_type != R_PARISC_TLS_GD14R)
4226 off += 2 * GOT_ENTRY_SIZE;
4228 /* Add the base of the GOT to the relocation value. */
4230 + htab->sgot->output_offset
4231 + htab->sgot->output_section->vma);
4236 case R_PARISC_TLS_LE21L:
4237 case R_PARISC_TLS_LE14R:
4239 relocation = tpoff (info, relocation);
4248 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4249 htab, sym_sec, hh, info);
4251 if (rstatus == bfd_reloc_ok)
4255 sym_name = hh_name (hh);
4258 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4259 symtab_hdr->sh_link,
4261 if (sym_name == NULL)
4263 if (*sym_name == '\0')
4264 sym_name = bfd_section_name (input_bfd, sym_sec);
4267 howto = elf_hppa_howto_table + r_type;
4269 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
4271 if (rstatus == bfd_reloc_notsupported || !warned_undef)
4273 (*_bfd_error_handler)
4274 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4277 (long) rela->r_offset,
4280 bfd_set_error (bfd_error_bad_value);
4286 if (!((*info->callbacks->reloc_overflow)
4287 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4288 (bfd_vma) 0, input_bfd, input_section, rela->r_offset)))
4296 /* Finish up dynamic symbol handling. We set the contents of various
4297 dynamic sections here. */
4300 elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4301 struct bfd_link_info *info,
4302 struct elf_link_hash_entry *eh,
4303 Elf_Internal_Sym *sym)
4305 struct elf32_hppa_link_hash_table *htab;
4306 Elf_Internal_Rela rela;
4309 htab = hppa_link_hash_table (info);
4313 if (eh->plt.offset != (bfd_vma) -1)
4317 if (eh->plt.offset & 1)
4320 /* This symbol has an entry in the procedure linkage table. Set
4323 The format of a plt entry is
4328 if (eh->root.type == bfd_link_hash_defined
4329 || eh->root.type == bfd_link_hash_defweak)
4331 value = eh->root.u.def.value;
4332 if (eh->root.u.def.section->output_section != NULL)
4333 value += (eh->root.u.def.section->output_offset
4334 + eh->root.u.def.section->output_section->vma);
4337 /* Create a dynamic IPLT relocation for this entry. */
4338 rela.r_offset = (eh->plt.offset
4339 + htab->splt->output_offset
4340 + htab->splt->output_section->vma);
4341 if (eh->dynindx != -1)
4343 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4348 /* This symbol has been marked to become local, and is
4349 used by a plabel so must be kept in the .plt. */
4350 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4351 rela.r_addend = value;
4354 loc = htab->srelplt->contents;
4355 loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
4356 bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc);
4358 if (!eh->def_regular)
4360 /* Mark the symbol as undefined, rather than as defined in
4361 the .plt section. Leave the value alone. */
4362 sym->st_shndx = SHN_UNDEF;
4366 if (eh->got.offset != (bfd_vma) -1
4367 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4368 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
4370 /* This symbol has an entry in the global offset table. Set it
4373 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
4374 + htab->sgot->output_offset
4375 + htab->sgot->output_section->vma);
4377 /* If this is a -Bsymbolic link and the symbol is defined
4378 locally or was forced to be local because of a version file,
4379 we just want to emit a RELATIVE reloc. The entry in the
4380 global offset table will already have been initialized in the
4381 relocate_section function. */
4383 && (info->symbolic || eh->dynindx == -1)
4386 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4387 rela.r_addend = (eh->root.u.def.value
4388 + eh->root.u.def.section->output_offset
4389 + eh->root.u.def.section->output_section->vma);
4393 if ((eh->got.offset & 1) != 0)
4396 bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1));
4397 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4401 loc = htab->srelgot->contents;
4402 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4403 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4410 /* This symbol needs a copy reloc. Set it up. */
4412 if (! (eh->dynindx != -1
4413 && (eh->root.type == bfd_link_hash_defined
4414 || eh->root.type == bfd_link_hash_defweak)))
4417 sec = htab->srelbss;
4419 rela.r_offset = (eh->root.u.def.value
4420 + eh->root.u.def.section->output_offset
4421 + eh->root.u.def.section->output_section->vma);
4423 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4424 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4425 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4428 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4429 if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
4431 sym->st_shndx = SHN_ABS;
4437 /* Used to decide how to sort relocs in an optimal manner for the
4438 dynamic linker, before writing them out. */
4440 static enum elf_reloc_type_class
4441 elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4442 const asection *rel_sec ATTRIBUTE_UNUSED,
4443 const Elf_Internal_Rela *rela)
4445 /* Handle TLS relocs first; we don't want them to be marked
4446 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
4448 switch ((int) ELF32_R_TYPE (rela->r_info))
4450 case R_PARISC_TLS_DTPMOD32:
4451 case R_PARISC_TLS_DTPOFF32:
4452 case R_PARISC_TLS_TPREL32:
4453 return reloc_class_normal;
4456 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
4457 return reloc_class_relative;
4459 switch ((int) ELF32_R_TYPE (rela->r_info))
4462 return reloc_class_plt;
4464 return reloc_class_copy;
4466 return reloc_class_normal;
4470 /* Finish up the dynamic sections. */
4473 elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4474 struct bfd_link_info *info)
4477 struct elf32_hppa_link_hash_table *htab;
4481 htab = hppa_link_hash_table (info);
4485 dynobj = htab->etab.dynobj;
4488 /* A broken linker script might have discarded the dynamic sections.
4489 Catch this here so that we do not seg-fault later on. */
4490 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4493 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4495 if (htab->etab.dynamic_sections_created)
4497 Elf32_External_Dyn *dyncon, *dynconend;
4502 dyncon = (Elf32_External_Dyn *) sdyn->contents;
4503 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4504 for (; dyncon < dynconend; dyncon++)
4506 Elf_Internal_Dyn dyn;
4509 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4517 /* Use PLTGOT to set the GOT register. */
4518 dyn.d_un.d_ptr = elf_gp (output_bfd);
4523 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4528 dyn.d_un.d_val = s->size;
4532 /* Don't count procedure linkage table relocs in the
4533 overall reloc count. */
4537 dyn.d_un.d_val -= s->size;
4541 /* We may not be using the standard ELF linker script.
4542 If .rela.plt is the first .rela section, we adjust
4543 DT_RELA to not include it. */
4547 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
4549 dyn.d_un.d_ptr += s->size;
4553 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4557 if (sgot != NULL && sgot->size != 0)
4559 /* Fill in the first entry in the global offset table.
4560 We use it to point to our dynamic section, if we have one. */
4561 bfd_put_32 (output_bfd,
4562 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
4565 /* The second entry is reserved for use by the dynamic linker. */
4566 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
4568 /* Set .got entry size. */
4569 elf_section_data (sgot->output_section)
4570 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
4573 if (htab->splt != NULL && htab->splt->size != 0)
4575 /* Set plt entry size. */
4576 elf_section_data (htab->splt->output_section)
4577 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
4579 if (htab->need_plt_stub)
4581 /* Set up the .plt stub. */
4582 memcpy (htab->splt->contents
4583 + htab->splt->size - sizeof (plt_stub),
4584 plt_stub, sizeof (plt_stub));
4586 if ((htab->splt->output_offset
4587 + htab->splt->output_section->vma
4589 != (sgot->output_offset
4590 + sgot->output_section->vma))
4592 (*_bfd_error_handler)
4593 (_(".got section not immediately after .plt section"));
4602 /* Called when writing out an object file to decide the type of a
4605 elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
4607 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4608 return STT_PARISC_MILLI;
4613 /* Misc BFD support code. */
4614 #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4615 #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4616 #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4617 #define elf_info_to_howto elf_hppa_info_to_howto
4618 #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4620 /* Stuff for the BFD linker. */
4621 #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4622 #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4623 #define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free
4624 #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4625 #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4626 #define elf_backend_check_relocs elf32_hppa_check_relocs
4627 #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4628 #define elf_backend_fake_sections elf_hppa_fake_sections
4629 #define elf_backend_relocate_section elf32_hppa_relocate_section
4630 #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4631 #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4632 #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4633 #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4634 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4635 #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4636 #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
4637 #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4638 #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4639 #define elf_backend_object_p elf32_hppa_object_p
4640 #define elf_backend_final_write_processing elf_hppa_final_write_processing
4641 #define elf_backend_post_process_headers _bfd_elf_set_osabi
4642 #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4643 #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4644 #define elf_backend_action_discarded elf_hppa_action_discarded
4646 #define elf_backend_can_gc_sections 1
4647 #define elf_backend_can_refcount 1
4648 #define elf_backend_plt_alignment 2
4649 #define elf_backend_want_got_plt 0
4650 #define elf_backend_plt_readonly 0
4651 #define elf_backend_want_plt_sym 0
4652 #define elf_backend_got_header_size 8
4653 #define elf_backend_rela_normal 1
4655 #define TARGET_BIG_SYM bfd_elf32_hppa_vec
4656 #define TARGET_BIG_NAME "elf32-hppa"
4657 #define ELF_ARCH bfd_arch_hppa
4658 #define ELF_TARGET_ID HPPA32_ELF_DATA
4659 #define ELF_MACHINE_CODE EM_PARISC
4660 #define ELF_MAXPAGESIZE 0x1000
4661 #define ELF_OSABI ELFOSABI_HPUX
4662 #define elf32_bed elf32_hppa_hpux_bed
4664 #include "elf32-target.h"
4666 #undef TARGET_BIG_SYM
4667 #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec
4668 #undef TARGET_BIG_NAME
4669 #define TARGET_BIG_NAME "elf32-hppa-linux"
4671 #define ELF_OSABI ELFOSABI_GNU
4673 #define elf32_bed elf32_hppa_linux_bed
4675 #include "elf32-target.h"
4677 #undef TARGET_BIG_SYM
4678 #define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec
4679 #undef TARGET_BIG_NAME
4680 #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4682 #define ELF_OSABI ELFOSABI_NETBSD
4684 #define elf32_bed elf32_hppa_netbsd_bed
4686 #include "elf32-target.h"