1 /* BFD back-end for HP PA-RISC ELF files.
2 Copyright (C) 1990-2018 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 Always remember to use GNU Coding Style. */
137 #define PLT_ENTRY_SIZE 8
138 #define GOT_ENTRY_SIZE 4
139 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
141 static const bfd_byte plt_stub[] =
143 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
144 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
145 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
146 #define PLT_STUB_ENTRY (3*4)
147 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
148 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
149 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
150 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
153 /* Section name for stubs is the associated section name plus this
155 #define STUB_SUFFIX ".stub"
157 /* We don't need to copy certain PC- or GP-relative dynamic relocs
158 into a shared object's dynamic section. All the relocs of the
159 limited class we are interested in, are absolute. */
160 #ifndef RELATIVE_DYNRELOCS
161 #define RELATIVE_DYNRELOCS 0
162 #define IS_ABSOLUTE_RELOC(r_type) 1
163 #define pc_dynrelocs(hh) 0
166 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
167 copying dynamic variables from a shared lib into an app's dynbss
168 section, and instead use a dynamic relocation to point into the
170 #define ELIMINATE_COPY_RELOCS 1
172 enum elf32_hppa_stub_type
174 hppa_stub_long_branch,
175 hppa_stub_long_branch_shared,
177 hppa_stub_import_shared,
182 struct elf32_hppa_stub_hash_entry
184 /* Base hash table entry structure. */
185 struct bfd_hash_entry bh_root;
187 /* The stub section. */
190 /* Offset within stub_sec of the beginning of this stub. */
193 /* Given the symbol's value and its section we can determine its final
194 value when building the stubs (so the stub knows where to jump. */
195 bfd_vma target_value;
196 asection *target_section;
198 enum elf32_hppa_stub_type stub_type;
200 /* The symbol table entry, if any, that this was derived from. */
201 struct elf32_hppa_link_hash_entry *hh;
203 /* Where this stub is being called from, or, in the case of combined
204 stub sections, the first input section in the group. */
217 struct elf32_hppa_link_hash_entry
219 struct elf_link_hash_entry eh;
221 /* A pointer to the most recently used stub hash entry against this
223 struct elf32_hppa_stub_hash_entry *hsh_cache;
225 /* Used to count relocations for delayed sizing of relocation
227 struct elf_dyn_relocs *dyn_relocs;
229 ENUM_BITFIELD (_tls_type) tls_type : 8;
231 /* Set if this symbol is used by a plabel reloc. */
232 unsigned int plabel:1;
235 struct elf32_hppa_link_hash_table
237 /* The main hash table. */
238 struct elf_link_hash_table etab;
240 /* The stub hash table. */
241 struct bfd_hash_table bstab;
243 /* Linker stub bfd. */
246 /* Linker call-backs. */
247 asection * (*add_stub_section) (const char *, asection *);
248 void (*layout_sections_again) (void);
250 /* Array to keep track of which stub sections have been created, and
251 information on stub grouping. */
254 /* This is the section to which stubs in the group will be
257 /* The stub section. */
261 /* Assorted information used by elf32_hppa_size_stubs. */
262 unsigned int bfd_count;
263 unsigned int top_index;
264 asection **input_list;
265 Elf_Internal_Sym **all_local_syms;
267 /* Used during a final link to store the base of the text and data
268 segments so that we can perform SEGREL relocations. */
269 bfd_vma text_segment_base;
270 bfd_vma data_segment_base;
272 /* Whether we support multiple sub-spaces for shared libs. */
273 unsigned int multi_subspace:1;
275 /* Flags set when various size branches are detected. Used to
276 select suitable defaults for the stub group size. */
277 unsigned int has_12bit_branch:1;
278 unsigned int has_17bit_branch:1;
279 unsigned int has_22bit_branch:1;
281 /* Set if we need a .plt stub to support lazy dynamic linking. */
282 unsigned int need_plt_stub:1;
284 /* Small local sym cache. */
285 struct sym_cache sym_cache;
287 /* Data for LDM relocations. */
290 bfd_signed_vma refcount;
295 /* Various hash macros and functions. */
296 #define hppa_link_hash_table(p) \
297 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
298 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
300 #define hppa_elf_hash_entry(ent) \
301 ((struct elf32_hppa_link_hash_entry *)(ent))
303 #define hppa_stub_hash_entry(ent) \
304 ((struct elf32_hppa_stub_hash_entry *)(ent))
306 #define hppa_stub_hash_lookup(table, string, create, copy) \
307 ((struct elf32_hppa_stub_hash_entry *) \
308 bfd_hash_lookup ((table), (string), (create), (copy)))
310 #define hppa_elf_local_got_tls_type(abfd) \
311 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
313 #define hh_name(hh) \
314 (hh ? hh->eh.root.root.string : "<undef>")
316 #define eh_name(eh) \
317 (eh ? eh->root.root.string : "<undef>")
319 /* Assorted hash table functions. */
321 /* Initialize an entry in the stub hash table. */
323 static struct bfd_hash_entry *
324 stub_hash_newfunc (struct bfd_hash_entry *entry,
325 struct bfd_hash_table *table,
328 /* Allocate the structure if it has not already been allocated by a
332 entry = bfd_hash_allocate (table,
333 sizeof (struct elf32_hppa_stub_hash_entry));
338 /* Call the allocation method of the superclass. */
339 entry = bfd_hash_newfunc (entry, table, string);
342 struct elf32_hppa_stub_hash_entry *hsh;
344 /* Initialize the local fields. */
345 hsh = hppa_stub_hash_entry (entry);
346 hsh->stub_sec = NULL;
347 hsh->stub_offset = 0;
348 hsh->target_value = 0;
349 hsh->target_section = NULL;
350 hsh->stub_type = hppa_stub_long_branch;
358 /* Initialize an entry in the link hash table. */
360 static struct bfd_hash_entry *
361 hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
362 struct bfd_hash_table *table,
365 /* Allocate the structure if it has not already been allocated by a
369 entry = bfd_hash_allocate (table,
370 sizeof (struct elf32_hppa_link_hash_entry));
375 /* Call the allocation method of the superclass. */
376 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
379 struct elf32_hppa_link_hash_entry *hh;
381 /* Initialize the local fields. */
382 hh = hppa_elf_hash_entry (entry);
383 hh->hsh_cache = NULL;
384 hh->dyn_relocs = NULL;
386 hh->tls_type = GOT_UNKNOWN;
392 /* Free the derived linker hash table. */
395 elf32_hppa_link_hash_table_free (bfd *obfd)
397 struct elf32_hppa_link_hash_table *htab
398 = (struct elf32_hppa_link_hash_table *) obfd->link.hash;
400 bfd_hash_table_free (&htab->bstab);
401 _bfd_elf_link_hash_table_free (obfd);
404 /* Create the derived linker hash table. The PA ELF port uses the derived
405 hash table to keep information specific to the PA ELF linker (without
406 using static variables). */
408 static struct bfd_link_hash_table *
409 elf32_hppa_link_hash_table_create (bfd *abfd)
411 struct elf32_hppa_link_hash_table *htab;
412 bfd_size_type amt = sizeof (*htab);
414 htab = bfd_zmalloc (amt);
418 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
419 sizeof (struct elf32_hppa_link_hash_entry),
426 /* Init the stub hash table too. */
427 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
428 sizeof (struct elf32_hppa_stub_hash_entry)))
430 _bfd_elf_link_hash_table_free (abfd);
433 htab->etab.root.hash_table_free = elf32_hppa_link_hash_table_free;
435 htab->text_segment_base = (bfd_vma) -1;
436 htab->data_segment_base = (bfd_vma) -1;
437 return &htab->etab.root;
440 /* Initialize the linker stubs BFD so that we can use it for linker
441 created dynamic sections. */
444 elf32_hppa_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
446 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
448 elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS32;
449 htab->etab.dynobj = abfd;
452 /* Build a name for an entry in the stub hash table. */
455 hppa_stub_name (const asection *input_section,
456 const asection *sym_sec,
457 const struct elf32_hppa_link_hash_entry *hh,
458 const Elf_Internal_Rela *rela)
465 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
466 stub_name = bfd_malloc (len);
467 if (stub_name != NULL)
468 sprintf (stub_name, "%08x_%s+%x",
469 input_section->id & 0xffffffff,
471 (int) rela->r_addend & 0xffffffff);
475 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
476 stub_name = bfd_malloc (len);
477 if (stub_name != NULL)
478 sprintf (stub_name, "%08x_%x:%x+%x",
479 input_section->id & 0xffffffff,
480 sym_sec->id & 0xffffffff,
481 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
482 (int) rela->r_addend & 0xffffffff);
487 /* Look up an entry in the stub hash. Stub entries are cached because
488 creating the stub name takes a bit of time. */
490 static struct elf32_hppa_stub_hash_entry *
491 hppa_get_stub_entry (const asection *input_section,
492 const asection *sym_sec,
493 struct elf32_hppa_link_hash_entry *hh,
494 const Elf_Internal_Rela *rela,
495 struct elf32_hppa_link_hash_table *htab)
497 struct elf32_hppa_stub_hash_entry *hsh_entry;
498 const asection *id_sec;
500 /* If this input section is part of a group of sections sharing one
501 stub section, then use the id of the first section in the group.
502 Stub names need to include a section id, as there may well be
503 more than one stub used to reach say, printf, and we need to
504 distinguish between them. */
505 id_sec = htab->stub_group[input_section->id].link_sec;
507 if (hh != NULL && hh->hsh_cache != NULL
508 && hh->hsh_cache->hh == hh
509 && hh->hsh_cache->id_sec == id_sec)
511 hsh_entry = hh->hsh_cache;
517 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
518 if (stub_name == NULL)
521 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
522 stub_name, FALSE, FALSE);
524 hh->hsh_cache = hsh_entry;
532 /* Add a new stub entry to the stub hash. Not all fields of the new
533 stub entry are initialised. */
535 static struct elf32_hppa_stub_hash_entry *
536 hppa_add_stub (const char *stub_name,
538 struct elf32_hppa_link_hash_table *htab)
542 struct elf32_hppa_stub_hash_entry *hsh;
544 link_sec = htab->stub_group[section->id].link_sec;
545 stub_sec = htab->stub_group[section->id].stub_sec;
546 if (stub_sec == NULL)
548 stub_sec = htab->stub_group[link_sec->id].stub_sec;
549 if (stub_sec == NULL)
555 namelen = strlen (link_sec->name);
556 len = namelen + sizeof (STUB_SUFFIX);
557 s_name = bfd_alloc (htab->stub_bfd, len);
561 memcpy (s_name, link_sec->name, namelen);
562 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
563 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
564 if (stub_sec == NULL)
566 htab->stub_group[link_sec->id].stub_sec = stub_sec;
568 htab->stub_group[section->id].stub_sec = stub_sec;
571 /* Enter this entry into the linker stub hash table. */
572 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
576 /* xgettext:c-format */
577 _bfd_error_handler (_("%pB: cannot create stub entry %s"),
578 section->owner, stub_name);
582 hsh->stub_sec = stub_sec;
583 hsh->stub_offset = 0;
584 hsh->id_sec = link_sec;
588 /* Determine the type of stub needed, if any, for a call. */
590 static enum elf32_hppa_stub_type
591 hppa_type_of_stub (asection *input_sec,
592 const Elf_Internal_Rela *rela,
593 struct elf32_hppa_link_hash_entry *hh,
595 struct bfd_link_info *info)
598 bfd_vma branch_offset;
599 bfd_vma max_branch_offset;
603 && hh->eh.plt.offset != (bfd_vma) -1
604 && hh->eh.dynindx != -1
606 && (bfd_link_pic (info)
607 || !hh->eh.def_regular
608 || hh->eh.root.type == bfd_link_hash_defweak))
610 /* We need an import stub. Decide between hppa_stub_import
611 and hppa_stub_import_shared later. */
612 return hppa_stub_import;
615 if (destination == (bfd_vma) -1)
616 return hppa_stub_none;
618 /* Determine where the call point is. */
619 location = (input_sec->output_offset
620 + input_sec->output_section->vma
623 branch_offset = destination - location - 8;
624 r_type = ELF32_R_TYPE (rela->r_info);
626 /* Determine if a long branch stub is needed. parisc branch offsets
627 are relative to the second instruction past the branch, ie. +8
628 bytes on from the branch instruction location. The offset is
629 signed and counts in units of 4 bytes. */
630 if (r_type == (unsigned int) R_PARISC_PCREL17F)
631 max_branch_offset = (1 << (17 - 1)) << 2;
633 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
634 max_branch_offset = (1 << (12 - 1)) << 2;
636 else /* R_PARISC_PCREL22F. */
637 max_branch_offset = (1 << (22 - 1)) << 2;
639 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
640 return hppa_stub_long_branch;
642 return hppa_stub_none;
645 /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
646 IN_ARG contains the link info pointer. */
648 #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
649 #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
651 #define BL_R1 0xe8200000 /* b,l .+8,%r1 */
652 #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
653 #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
655 #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
656 #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
657 #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
658 #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
660 #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
661 #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
663 #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
664 #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
665 #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
666 #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
668 #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
669 #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
670 #define NOP 0x08000240 /* nop */
671 #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
672 #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
673 #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
680 #define LDW_R1_DLT LDW_R1_R19
682 #define LDW_R1_DLT LDW_R1_DP
686 hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
688 struct elf32_hppa_stub_hash_entry *hsh;
689 struct bfd_link_info *info;
690 struct elf32_hppa_link_hash_table *htab;
700 /* Massage our args to the form they really have. */
701 hsh = hppa_stub_hash_entry (bh);
702 info = (struct bfd_link_info *)in_arg;
704 htab = hppa_link_hash_table (info);
708 stub_sec = hsh->stub_sec;
710 /* Make a note of the offset within the stubs for this entry. */
711 hsh->stub_offset = stub_sec->size;
712 loc = stub_sec->contents + hsh->stub_offset;
714 stub_bfd = stub_sec->owner;
716 switch (hsh->stub_type)
718 case hppa_stub_long_branch:
719 /* Create the long branch. A long branch is formed with "ldil"
720 loading the upper bits of the target address into a register,
721 then branching with "be" which adds in the lower bits.
722 The "be" has its delay slot nullified. */
723 sym_value = (hsh->target_value
724 + hsh->target_section->output_offset
725 + hsh->target_section->output_section->vma);
727 val = hppa_field_adjust (sym_value, 0, e_lrsel);
728 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
729 bfd_put_32 (stub_bfd, insn, loc);
731 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
732 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
733 bfd_put_32 (stub_bfd, insn, loc + 4);
738 case hppa_stub_long_branch_shared:
739 /* Branches are relative. This is where we are going to. */
740 sym_value = (hsh->target_value
741 + hsh->target_section->output_offset
742 + hsh->target_section->output_section->vma);
744 /* And this is where we are coming from, more or less. */
745 sym_value -= (hsh->stub_offset
746 + stub_sec->output_offset
747 + stub_sec->output_section->vma);
749 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
750 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
751 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
752 bfd_put_32 (stub_bfd, insn, loc + 4);
754 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
755 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
756 bfd_put_32 (stub_bfd, insn, loc + 8);
760 case hppa_stub_import:
761 case hppa_stub_import_shared:
762 off = hsh->hh->eh.plt.offset;
763 if (off >= (bfd_vma) -2)
766 off &= ~ (bfd_vma) 1;
768 + htab->etab.splt->output_offset
769 + htab->etab.splt->output_section->vma
770 - elf_gp (htab->etab.splt->output_section->owner));
774 if (hsh->stub_type == hppa_stub_import_shared)
777 val = hppa_field_adjust (sym_value, 0, e_lrsel),
778 insn = hppa_rebuild_insn ((int) insn, val, 21);
779 bfd_put_32 (stub_bfd, insn, loc);
781 /* It is critical to use lrsel/rrsel here because we are using
782 two different offsets (+0 and +4) from sym_value. If we use
783 lsel/rsel then with unfortunate sym_values we will round
784 sym_value+4 up to the next 2k block leading to a mis-match
785 between the lsel and rsel value. */
786 val = hppa_field_adjust (sym_value, 0, e_rrsel);
787 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
788 bfd_put_32 (stub_bfd, insn, loc + 4);
790 if (htab->multi_subspace)
792 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
793 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
794 bfd_put_32 (stub_bfd, insn, loc + 8);
796 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
797 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
798 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
799 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
805 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
806 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
807 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
808 bfd_put_32 (stub_bfd, insn, loc + 12);
815 case hppa_stub_export:
816 /* Branches are relative. This is where we are going to. */
817 sym_value = (hsh->target_value
818 + hsh->target_section->output_offset
819 + hsh->target_section->output_section->vma);
821 /* And this is where we are coming from. */
822 sym_value -= (hsh->stub_offset
823 + stub_sec->output_offset
824 + stub_sec->output_section->vma);
826 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
827 && (!htab->has_22bit_branch
828 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
831 /* xgettext:c-format */
832 (_("%pB(%pA+%#" PRIx64 "): "
833 "cannot reach %s, recompile with -ffunction-sections"),
834 hsh->target_section->owner,
836 (uint64_t) hsh->stub_offset,
837 hsh->bh_root.string);
838 bfd_set_error (bfd_error_bad_value);
842 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
843 if (!htab->has_22bit_branch)
844 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
846 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
847 bfd_put_32 (stub_bfd, insn, loc);
849 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
850 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
851 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
852 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
853 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
855 /* Point the function symbol at the stub. */
856 hsh->hh->eh.root.u.def.section = stub_sec;
857 hsh->hh->eh.root.u.def.value = stub_sec->size;
867 stub_sec->size += size;
892 /* As above, but don't actually build the stub. Just bump offset so
893 we know stub section sizes. */
896 hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
898 struct elf32_hppa_stub_hash_entry *hsh;
899 struct elf32_hppa_link_hash_table *htab;
902 /* Massage our args to the form they really have. */
903 hsh = hppa_stub_hash_entry (bh);
906 if (hsh->stub_type == hppa_stub_long_branch)
908 else if (hsh->stub_type == hppa_stub_long_branch_shared)
910 else if (hsh->stub_type == hppa_stub_export)
912 else /* hppa_stub_import or hppa_stub_import_shared. */
914 if (htab->multi_subspace)
920 hsh->stub_sec->size += size;
924 /* Return nonzero if ABFD represents an HPPA ELF32 file.
925 Additionally we set the default architecture and machine. */
928 elf32_hppa_object_p (bfd *abfd)
930 Elf_Internal_Ehdr * i_ehdrp;
933 i_ehdrp = elf_elfheader (abfd);
934 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
936 /* GCC on hppa-linux produces binaries with OSABI=GNU,
937 but the kernel produces corefiles with OSABI=SysV. */
938 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
939 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
942 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
944 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
945 but the kernel produces corefiles with OSABI=SysV. */
946 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
947 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
952 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
956 flags = i_ehdrp->e_flags;
957 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
960 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
962 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
964 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
965 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
966 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
971 /* Create the .plt and .got sections, and set up our hash table
972 short-cuts to various dynamic sections. */
975 elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
977 struct elf32_hppa_link_hash_table *htab;
978 struct elf_link_hash_entry *eh;
980 /* Don't try to create the .plt and .got twice. */
981 htab = hppa_link_hash_table (info);
984 if (htab->etab.splt != NULL)
987 /* Call the generic code to do most of the work. */
988 if (! _bfd_elf_create_dynamic_sections (abfd, info))
991 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
992 application, because __canonicalize_funcptr_for_compare needs it. */
993 eh = elf_hash_table (info)->hgot;
994 eh->forced_local = 0;
995 eh->other = STV_DEFAULT;
996 return bfd_elf_link_record_dynamic_symbol (info, eh);
999 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1002 elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
1003 struct elf_link_hash_entry *eh_dir,
1004 struct elf_link_hash_entry *eh_ind)
1006 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
1008 hh_dir = hppa_elf_hash_entry (eh_dir);
1009 hh_ind = hppa_elf_hash_entry (eh_ind);
1011 if (hh_ind->dyn_relocs != NULL
1012 && eh_ind->root.type == bfd_link_hash_indirect)
1014 if (hh_dir->dyn_relocs != NULL)
1016 struct elf_dyn_relocs **hdh_pp;
1017 struct elf_dyn_relocs *hdh_p;
1019 /* Add reloc counts against the indirect sym to the direct sym
1020 list. Merge any entries against the same section. */
1021 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
1023 struct elf_dyn_relocs *hdh_q;
1025 for (hdh_q = hh_dir->dyn_relocs;
1027 hdh_q = hdh_q->next)
1028 if (hdh_q->sec == hdh_p->sec)
1030 #if RELATIVE_DYNRELOCS
1031 hdh_q->pc_count += hdh_p->pc_count;
1033 hdh_q->count += hdh_p->count;
1034 *hdh_pp = hdh_p->next;
1038 hdh_pp = &hdh_p->next;
1040 *hdh_pp = hh_dir->dyn_relocs;
1043 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1044 hh_ind->dyn_relocs = NULL;
1047 if (eh_ind->root.type == bfd_link_hash_indirect)
1049 hh_dir->plabel |= hh_ind->plabel;
1050 hh_dir->tls_type |= hh_ind->tls_type;
1051 hh_ind->tls_type = GOT_UNKNOWN;
1054 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1058 elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1059 int r_type, int is_local ATTRIBUTE_UNUSED)
1061 /* For now we don't support linker optimizations. */
1065 /* Return a pointer to the local GOT, PLT and TLS reference counts
1066 for ABFD. Returns NULL if the storage allocation fails. */
1068 static bfd_signed_vma *
1069 hppa32_elf_local_refcounts (bfd *abfd)
1071 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1072 bfd_signed_vma *local_refcounts;
1074 local_refcounts = elf_local_got_refcounts (abfd);
1075 if (local_refcounts == NULL)
1079 /* Allocate space for local GOT and PLT reference
1080 counts. Done this way to save polluting elf_obj_tdata
1081 with another target specific pointer. */
1082 size = symtab_hdr->sh_info;
1083 size *= 2 * sizeof (bfd_signed_vma);
1084 /* Add in space to store the local GOT TLS types. */
1085 size += symtab_hdr->sh_info;
1086 local_refcounts = bfd_zalloc (abfd, size);
1087 if (local_refcounts == NULL)
1089 elf_local_got_refcounts (abfd) = local_refcounts;
1090 memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1091 symtab_hdr->sh_info);
1093 return local_refcounts;
1097 /* Look through the relocs for a section during the first phase, and
1098 calculate needed space in the global offset table, procedure linkage
1099 table, and dynamic reloc sections. At this point we haven't
1100 necessarily read all the input files. */
1103 elf32_hppa_check_relocs (bfd *abfd,
1104 struct bfd_link_info *info,
1106 const Elf_Internal_Rela *relocs)
1108 Elf_Internal_Shdr *symtab_hdr;
1109 struct elf_link_hash_entry **eh_syms;
1110 const Elf_Internal_Rela *rela;
1111 const Elf_Internal_Rela *rela_end;
1112 struct elf32_hppa_link_hash_table *htab;
1115 if (bfd_link_relocatable (info))
1118 htab = hppa_link_hash_table (info);
1121 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1122 eh_syms = elf_sym_hashes (abfd);
1125 rela_end = relocs + sec->reloc_count;
1126 for (rela = relocs; rela < rela_end; rela++)
1135 unsigned int r_symndx, r_type;
1136 struct elf32_hppa_link_hash_entry *hh;
1139 r_symndx = ELF32_R_SYM (rela->r_info);
1141 if (r_symndx < symtab_hdr->sh_info)
1145 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
1146 while (hh->eh.root.type == bfd_link_hash_indirect
1147 || hh->eh.root.type == bfd_link_hash_warning)
1148 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
1151 r_type = ELF32_R_TYPE (rela->r_info);
1152 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
1156 case R_PARISC_DLTIND14F:
1157 case R_PARISC_DLTIND14R:
1158 case R_PARISC_DLTIND21L:
1159 /* This symbol requires a global offset table entry. */
1160 need_entry = NEED_GOT;
1163 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1164 case R_PARISC_PLABEL21L:
1165 case R_PARISC_PLABEL32:
1166 /* If the addend is non-zero, we break badly. */
1167 if (rela->r_addend != 0)
1170 /* If we are creating a shared library, then we need to
1171 create a PLT entry for all PLABELs, because PLABELs with
1172 local symbols may be passed via a pointer to another
1173 object. Additionally, output a dynamic relocation
1174 pointing to the PLT entry.
1176 For executables, the original 32-bit ABI allowed two
1177 different styles of PLABELs (function pointers): For
1178 global functions, the PLABEL word points into the .plt
1179 two bytes past a (function address, gp) pair, and for
1180 local functions the PLABEL points directly at the
1181 function. The magic +2 for the first type allows us to
1182 differentiate between the two. As you can imagine, this
1183 is a real pain when it comes to generating code to call
1184 functions indirectly or to compare function pointers.
1185 We avoid the mess by always pointing a PLABEL into the
1186 .plt, even for local functions. */
1187 need_entry = PLT_PLABEL | NEED_PLT;
1188 if (bfd_link_pic (info))
1189 need_entry |= NEED_DYNREL;
1192 case R_PARISC_PCREL12F:
1193 htab->has_12bit_branch = 1;
1196 case R_PARISC_PCREL17C:
1197 case R_PARISC_PCREL17F:
1198 htab->has_17bit_branch = 1;
1201 case R_PARISC_PCREL22F:
1202 htab->has_22bit_branch = 1;
1204 /* Function calls might need to go through the .plt, and
1205 might require long branch stubs. */
1208 /* We know local syms won't need a .plt entry, and if
1209 they need a long branch stub we can't guarantee that
1210 we can reach the stub. So just flag an error later
1211 if we're doing a shared link and find we need a long
1217 /* Global symbols will need a .plt entry if they remain
1218 global, and in most cases won't need a long branch
1219 stub. Unfortunately, we have to cater for the case
1220 where a symbol is forced local by versioning, or due
1221 to symbolic linking, and we lose the .plt entry. */
1222 need_entry = NEED_PLT;
1223 if (hh->eh.type == STT_PARISC_MILLI)
1228 case R_PARISC_SEGBASE: /* Used to set segment base. */
1229 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
1230 case R_PARISC_PCREL14F: /* PC relative load/store. */
1231 case R_PARISC_PCREL14R:
1232 case R_PARISC_PCREL17R: /* External branches. */
1233 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
1234 case R_PARISC_PCREL32:
1235 /* We don't need to propagate the relocation if linking a
1236 shared object since these are section relative. */
1239 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1240 case R_PARISC_DPREL14R:
1241 case R_PARISC_DPREL21L:
1242 if (bfd_link_pic (info))
1245 /* xgettext:c-format */
1246 (_("%pB: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1248 elf_hppa_howto_table[r_type].name);
1249 bfd_set_error (bfd_error_bad_value);
1254 case R_PARISC_DIR17F: /* Used for external branches. */
1255 case R_PARISC_DIR17R:
1256 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1257 case R_PARISC_DIR14R:
1258 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
1259 case R_PARISC_DIR32: /* .word relocs. */
1260 /* We may want to output a dynamic relocation later. */
1261 need_entry = NEED_DYNREL;
1264 /* This relocation describes the C++ object vtable hierarchy.
1265 Reconstruct it for later use during GC. */
1266 case R_PARISC_GNU_VTINHERIT:
1267 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
1271 /* This relocation describes which C++ vtable entries are actually
1272 used. Record for later use during GC. */
1273 case R_PARISC_GNU_VTENTRY:
1274 BFD_ASSERT (hh != NULL);
1276 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
1280 case R_PARISC_TLS_GD21L:
1281 case R_PARISC_TLS_GD14R:
1282 case R_PARISC_TLS_LDM21L:
1283 case R_PARISC_TLS_LDM14R:
1284 need_entry = NEED_GOT;
1287 case R_PARISC_TLS_IE21L:
1288 case R_PARISC_TLS_IE14R:
1289 if (bfd_link_dll (info))
1290 info->flags |= DF_STATIC_TLS;
1291 need_entry = NEED_GOT;
1298 /* Now carry out our orders. */
1299 if (need_entry & NEED_GOT)
1301 int tls_type = GOT_NORMAL;
1307 case R_PARISC_TLS_GD21L:
1308 case R_PARISC_TLS_GD14R:
1309 tls_type = GOT_TLS_GD;
1311 case R_PARISC_TLS_LDM21L:
1312 case R_PARISC_TLS_LDM14R:
1313 tls_type = GOT_TLS_LDM;
1315 case R_PARISC_TLS_IE21L:
1316 case R_PARISC_TLS_IE14R:
1317 tls_type = GOT_TLS_IE;
1321 /* Allocate space for a GOT entry, as well as a dynamic
1322 relocation for this entry. */
1323 if (htab->etab.sgot == NULL)
1325 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
1331 if (tls_type == GOT_TLS_LDM)
1332 htab->tls_ldm_got.refcount += 1;
1334 hh->eh.got.refcount += 1;
1335 hh->tls_type |= tls_type;
1339 bfd_signed_vma *local_got_refcounts;
1341 /* This is a global offset table entry for a local symbol. */
1342 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1343 if (local_got_refcounts == NULL)
1345 if (tls_type == GOT_TLS_LDM)
1346 htab->tls_ldm_got.refcount += 1;
1348 local_got_refcounts[r_symndx] += 1;
1350 hppa_elf_local_got_tls_type (abfd) [r_symndx] |= tls_type;
1354 if (need_entry & NEED_PLT)
1356 /* If we are creating a shared library, and this is a reloc
1357 against a weak symbol or a global symbol in a dynamic
1358 object, then we will be creating an import stub and a
1359 .plt entry for the symbol. Similarly, on a normal link
1360 to symbols defined in a dynamic object we'll need the
1361 import stub and a .plt entry. We don't know yet whether
1362 the symbol is defined or not, so make an entry anyway and
1363 clean up later in adjust_dynamic_symbol. */
1364 if ((sec->flags & SEC_ALLOC) != 0)
1368 hh->eh.needs_plt = 1;
1369 hh->eh.plt.refcount += 1;
1371 /* If this .plt entry is for a plabel, mark it so
1372 that adjust_dynamic_symbol will keep the entry
1373 even if it appears to be local. */
1374 if (need_entry & PLT_PLABEL)
1377 else if (need_entry & PLT_PLABEL)
1379 bfd_signed_vma *local_got_refcounts;
1380 bfd_signed_vma *local_plt_refcounts;
1382 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1383 if (local_got_refcounts == NULL)
1385 local_plt_refcounts = (local_got_refcounts
1386 + symtab_hdr->sh_info);
1387 local_plt_refcounts[r_symndx] += 1;
1392 if ((need_entry & NEED_DYNREL) != 0
1393 && (sec->flags & SEC_ALLOC) != 0)
1395 /* Flag this symbol as having a non-got, non-plt reference
1396 so that we generate copy relocs if it turns out to be
1399 hh->eh.non_got_ref = 1;
1401 /* If we are creating a shared library then we need to copy
1402 the reloc into the shared library. However, if we are
1403 linking with -Bsymbolic, we need only copy absolute
1404 relocs or relocs against symbols that are not defined in
1405 an object we are including in the link. PC- or DP- or
1406 DLT-relative relocs against any local sym or global sym
1407 with DEF_REGULAR set, can be discarded. At this point we
1408 have not seen all the input files, so it is possible that
1409 DEF_REGULAR is not set now but will be set later (it is
1410 never cleared). We account for that possibility below by
1411 storing information in the dyn_relocs field of the
1414 A similar situation to the -Bsymbolic case occurs when
1415 creating shared libraries and symbol visibility changes
1416 render the symbol local.
1418 As it turns out, all the relocs we will be creating here
1419 are absolute, so we cannot remove them on -Bsymbolic
1420 links or visibility changes anyway. A STUB_REL reloc
1421 is absolute too, as in that case it is the reloc in the
1422 stub we will be creating, rather than copying the PCREL
1423 reloc in the branch.
1425 If on the other hand, we are creating an executable, we
1426 may need to keep relocations for symbols satisfied by a
1427 dynamic library if we manage to avoid copy relocs for the
1429 if ((bfd_link_pic (info)
1430 && (IS_ABSOLUTE_RELOC (r_type)
1432 && (!SYMBOLIC_BIND (info, &hh->eh)
1433 || hh->eh.root.type == bfd_link_hash_defweak
1434 || !hh->eh.def_regular))))
1435 || (ELIMINATE_COPY_RELOCS
1436 && !bfd_link_pic (info)
1438 && (hh->eh.root.type == bfd_link_hash_defweak
1439 || !hh->eh.def_regular)))
1441 struct elf_dyn_relocs *hdh_p;
1442 struct elf_dyn_relocs **hdh_head;
1444 /* Create a reloc section in dynobj and make room for
1448 sreloc = _bfd_elf_make_dynamic_reloc_section
1449 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1453 bfd_set_error (bfd_error_bad_value);
1458 /* If this is a global symbol, we count the number of
1459 relocations we need for this symbol. */
1462 hdh_head = &hh->dyn_relocs;
1466 /* Track dynamic relocs needed for local syms too.
1467 We really need local syms available to do this
1471 Elf_Internal_Sym *isym;
1473 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1478 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1482 vpp = &elf_section_data (sr)->local_dynrel;
1483 hdh_head = (struct elf_dyn_relocs **) vpp;
1487 if (hdh_p == NULL || hdh_p->sec != sec)
1489 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
1492 hdh_p->next = *hdh_head;
1496 #if RELATIVE_DYNRELOCS
1497 hdh_p->pc_count = 0;
1502 #if RELATIVE_DYNRELOCS
1503 if (!IS_ABSOLUTE_RELOC (rtype))
1504 hdh_p->pc_count += 1;
1513 /* Return the section that should be marked against garbage collection
1514 for a given relocation. */
1517 elf32_hppa_gc_mark_hook (asection *sec,
1518 struct bfd_link_info *info,
1519 Elf_Internal_Rela *rela,
1520 struct elf_link_hash_entry *hh,
1521 Elf_Internal_Sym *sym)
1524 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1526 case R_PARISC_GNU_VTINHERIT:
1527 case R_PARISC_GNU_VTENTRY:
1531 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
1534 /* Support for core dump NOTE sections. */
1537 elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1542 switch (note->descsz)
1547 case 396: /* Linux/hppa */
1549 elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
1552 elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
1561 /* Make a ".reg/999" section. */
1562 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1563 size, note->descpos + offset);
1567 elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1569 switch (note->descsz)
1574 case 124: /* Linux/hppa elf_prpsinfo. */
1575 elf_tdata (abfd)->core->program
1576 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
1577 elf_tdata (abfd)->core->command
1578 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1581 /* Note that for some reason, a spurious space is tacked
1582 onto the end of the args in some (at least one anyway)
1583 implementations, so strip it off if it exists. */
1585 char *command = elf_tdata (abfd)->core->command;
1586 int n = strlen (command);
1588 if (0 < n && command[n - 1] == ' ')
1589 command[n - 1] = '\0';
1595 /* Our own version of hide_symbol, so that we can keep plt entries for
1599 elf32_hppa_hide_symbol (struct bfd_link_info *info,
1600 struct elf_link_hash_entry *eh,
1601 bfd_boolean force_local)
1605 eh->forced_local = 1;
1606 if (eh->dynindx != -1)
1609 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1613 /* PR 16082: Remove version information from hidden symbol. */
1614 eh->verinfo.verdef = NULL;
1615 eh->verinfo.vertree = NULL;
1618 /* STT_GNU_IFUNC symbol must go through PLT. */
1619 if (! hppa_elf_hash_entry (eh)->plabel
1620 && eh->type != STT_GNU_IFUNC)
1623 eh->plt = elf_hash_table (info)->init_plt_offset;
1627 /* Find any dynamic relocs that apply to read-only sections. */
1630 readonly_dynrelocs (struct elf_link_hash_entry *eh)
1632 struct elf32_hppa_link_hash_entry *hh;
1633 struct elf_dyn_relocs *hdh_p;
1635 hh = hppa_elf_hash_entry (eh);
1636 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->next)
1638 asection *sec = hdh_p->sec->output_section;
1640 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
1646 /* Return true if we have dynamic relocs against H or any of its weak
1647 aliases, that apply to read-only sections. Cannot be used after
1648 size_dynamic_sections. */
1651 alias_readonly_dynrelocs (struct elf_link_hash_entry *eh)
1653 struct elf32_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh);
1656 if (readonly_dynrelocs (&hh->eh))
1658 hh = hppa_elf_hash_entry (hh->eh.u.alias);
1659 } while (hh != NULL && &hh->eh != eh);
1664 /* Adjust a symbol defined by a dynamic object and referenced by a
1665 regular object. The current definition is in some section of the
1666 dynamic object, but we're not including those sections. We have to
1667 change the definition to something the rest of the link can
1671 elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
1672 struct elf_link_hash_entry *eh)
1674 struct elf32_hppa_link_hash_table *htab;
1675 asection *sec, *srel;
1677 /* If this is a function, put it in the procedure linkage table. We
1678 will fill in the contents of the procedure linkage table later. */
1679 if (eh->type == STT_FUNC
1682 bfd_boolean local = (SYMBOL_CALLS_LOCAL (info, eh)
1683 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh));
1684 /* Discard dyn_relocs when non-pic if we've decided that a
1685 function symbol is local. */
1686 if (!bfd_link_pic (info) && local)
1687 hppa_elf_hash_entry (eh)->dyn_relocs = NULL;
1689 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1690 The refcounts are not reliable when it has been hidden since
1691 hide_symbol can be called before the plabel flag is set. */
1692 if (hppa_elf_hash_entry (eh)->plabel)
1693 eh->plt.refcount = 1;
1695 /* Note that unlike some other backends, the refcount is not
1696 incremented for a non-call (and non-plabel) function reference. */
1697 else if (eh->plt.refcount <= 0
1700 /* The .plt entry is not needed when:
1701 a) Garbage collection has removed all references to the
1703 b) We know for certain the symbol is defined in this
1704 object, and it's not a weak definition, nor is the symbol
1705 used by a plabel relocation. Either this object is the
1706 application or we are doing a shared symbolic link. */
1707 eh->plt.offset = (bfd_vma) -1;
1711 /* Unlike other targets, elf32-hppa.c does not define a function
1712 symbol in a non-pic executable on PLT stub code, so we don't
1713 have a local definition in that case. ie. dyn_relocs can't
1716 /* Function symbols can't have copy relocs. */
1720 eh->plt.offset = (bfd_vma) -1;
1722 htab = hppa_link_hash_table (info);
1726 /* If this is a weak symbol, and there is a real definition, the
1727 processor independent code will have arranged for us to see the
1728 real definition first, and we can just use the same value. */
1729 if (eh->is_weakalias)
1731 struct elf_link_hash_entry *def = weakdef (eh);
1732 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1733 eh->root.u.def.section = def->root.u.def.section;
1734 eh->root.u.def.value = def->root.u.def.value;
1735 if (def->root.u.def.section == htab->etab.sdynbss
1736 || def->root.u.def.section == htab->etab.sdynrelro)
1737 hppa_elf_hash_entry (eh)->dyn_relocs = NULL;
1741 /* This is a reference to a symbol defined by a dynamic object which
1742 is not a function. */
1744 /* If we are creating a shared library, we must presume that the
1745 only references to the symbol are via the global offset table.
1746 For such cases we need not do anything here; the relocations will
1747 be handled correctly by relocate_section. */
1748 if (bfd_link_pic (info))
1751 /* If there are no references to this symbol that do not use the
1752 GOT, we don't need to generate a copy reloc. */
1753 if (!eh->non_got_ref)
1756 /* If -z nocopyreloc was given, we won't generate them either. */
1757 if (info->nocopyreloc)
1760 /* If we don't find any dynamic relocs in read-only sections, then
1761 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1762 if (ELIMINATE_COPY_RELOCS
1763 && !alias_readonly_dynrelocs (eh))
1766 /* We must allocate the symbol in our .dynbss section, which will
1767 become part of the .bss section of the executable. There will be
1768 an entry for this symbol in the .dynsym section. The dynamic
1769 object will contain position independent code, so all references
1770 from the dynamic object to this symbol will go through the global
1771 offset table. The dynamic linker will use the .dynsym entry to
1772 determine the address it must put in the global offset table, so
1773 both the dynamic object and the regular object will refer to the
1774 same memory location for the variable. */
1775 if ((eh->root.u.def.section->flags & SEC_READONLY) != 0)
1777 sec = htab->etab.sdynrelro;
1778 srel = htab->etab.sreldynrelro;
1782 sec = htab->etab.sdynbss;
1783 srel = htab->etab.srelbss;
1785 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
1787 /* We must generate a COPY reloc to tell the dynamic linker to
1788 copy the initial value out of the dynamic object and into the
1789 runtime process image. */
1790 srel->size += sizeof (Elf32_External_Rela);
1794 /* We no longer want dyn_relocs. */
1795 hppa_elf_hash_entry (eh)->dyn_relocs = NULL;
1796 return _bfd_elf_adjust_dynamic_copy (info, eh, sec);
1799 /* If EH is undefined, make it dynamic if that makes sense. */
1802 ensure_undef_dynamic (struct bfd_link_info *info,
1803 struct elf_link_hash_entry *eh)
1805 struct elf_link_hash_table *htab = elf_hash_table (info);
1807 if (htab->dynamic_sections_created
1808 && (eh->root.type == bfd_link_hash_undefweak
1809 || eh->root.type == bfd_link_hash_undefined)
1810 && eh->dynindx == -1
1811 && !eh->forced_local
1812 && eh->type != STT_PARISC_MILLI
1813 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)
1814 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT)
1815 return bfd_elf_link_record_dynamic_symbol (info, eh);
1819 /* Allocate space in the .plt for entries that won't have relocations.
1820 ie. plabel entries. */
1823 allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
1825 struct bfd_link_info *info;
1826 struct elf32_hppa_link_hash_table *htab;
1827 struct elf32_hppa_link_hash_entry *hh;
1830 if (eh->root.type == bfd_link_hash_indirect)
1833 info = (struct bfd_link_info *) inf;
1834 hh = hppa_elf_hash_entry (eh);
1835 htab = hppa_link_hash_table (info);
1839 if (htab->etab.dynamic_sections_created
1840 && eh->plt.refcount > 0)
1842 if (!ensure_undef_dynamic (info, eh))
1845 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh))
1847 /* Allocate these later. From this point on, h->plabel
1848 means that the plt entry is only used by a plabel.
1849 We'll be using a normal plt entry for this symbol, so
1850 clear the plabel indicator. */
1854 else if (hh->plabel)
1856 /* Make an entry in the .plt section for plabel references
1857 that won't have a .plt entry for other reasons. */
1858 sec = htab->etab.splt;
1859 eh->plt.offset = sec->size;
1860 sec->size += PLT_ENTRY_SIZE;
1861 if (bfd_link_pic (info))
1862 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
1866 /* No .plt entry needed. */
1867 eh->plt.offset = (bfd_vma) -1;
1873 eh->plt.offset = (bfd_vma) -1;
1880 /* Calculate size of GOT entries for symbol given its TLS_TYPE. */
1882 static inline unsigned int
1883 got_entries_needed (int tls_type)
1885 unsigned int need = 0;
1887 if ((tls_type & GOT_NORMAL) != 0)
1888 need += GOT_ENTRY_SIZE;
1889 if ((tls_type & GOT_TLS_GD) != 0)
1890 need += GOT_ENTRY_SIZE * 2;
1891 if ((tls_type & GOT_TLS_IE) != 0)
1892 need += GOT_ENTRY_SIZE;
1896 /* Calculate size of relocs needed for symbol given its TLS_TYPE and
1897 NEEDed GOT entries. KNOWN says a TPREL offset can be calculated
1900 static inline unsigned int
1901 got_relocs_needed (int tls_type, unsigned int need, bfd_boolean known)
1903 /* All the entries we allocated need relocs.
1904 Except IE in executable with a local symbol. We could also omit
1905 the DTPOFF reloc on the second word of a GD entry under the same
1906 condition as that for IE, but ld.so might want to differentiate
1907 LD and GD entries at some stage. */
1908 if ((tls_type & GOT_TLS_IE) != 0 && known)
1909 need -= GOT_ENTRY_SIZE;
1910 return need * sizeof (Elf32_External_Rela) / GOT_ENTRY_SIZE;
1913 /* Allocate space in .plt, .got and associated reloc sections for
1917 allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
1919 struct bfd_link_info *info;
1920 struct elf32_hppa_link_hash_table *htab;
1922 struct elf32_hppa_link_hash_entry *hh;
1923 struct elf_dyn_relocs *hdh_p;
1925 if (eh->root.type == bfd_link_hash_indirect)
1929 htab = hppa_link_hash_table (info);
1933 hh = hppa_elf_hash_entry (eh);
1935 if (htab->etab.dynamic_sections_created
1936 && eh->plt.offset != (bfd_vma) -1
1938 && eh->plt.refcount > 0)
1940 /* Make an entry in the .plt section. */
1941 sec = htab->etab.splt;
1942 eh->plt.offset = sec->size;
1943 sec->size += PLT_ENTRY_SIZE;
1945 /* We also need to make an entry in the .rela.plt section. */
1946 htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
1947 htab->need_plt_stub = 1;
1950 if (eh->got.refcount > 0)
1954 if (!ensure_undef_dynamic (info, eh))
1957 sec = htab->etab.sgot;
1958 eh->got.offset = sec->size;
1959 need = got_entries_needed (hh->tls_type);
1961 if (htab->etab.dynamic_sections_created
1962 && (bfd_link_pic (info)
1963 || (eh->dynindx != -1
1964 && !SYMBOL_REFERENCES_LOCAL (info, eh)))
1965 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
1967 bfd_boolean tprel_known = (bfd_link_executable (info)
1968 && SYMBOL_REFERENCES_LOCAL (info, eh));
1969 htab->etab.srelgot->size
1970 += got_relocs_needed (hh->tls_type, need, tprel_known);
1974 eh->got.offset = (bfd_vma) -1;
1976 /* If no dynamic sections we can't have dynamic relocs. */
1977 if (!htab->etab.dynamic_sections_created)
1978 hh->dyn_relocs = NULL;
1980 /* Discard relocs on undefined syms with non-default visibility. */
1981 else if ((eh->root.type == bfd_link_hash_undefined
1982 && ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
1983 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
1984 hh->dyn_relocs = NULL;
1986 if (hh->dyn_relocs == NULL)
1989 /* If this is a -Bsymbolic shared link, then we need to discard all
1990 space allocated for dynamic pc-relative relocs against symbols
1991 defined in a regular object. For the normal shared case, discard
1992 space for relocs that have become local due to symbol visibility
1994 if (bfd_link_pic (info))
1996 #if RELATIVE_DYNRELOCS
1997 if (SYMBOL_CALLS_LOCAL (info, eh))
1999 struct elf_dyn_relocs **hdh_pp;
2001 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
2003 hdh_p->count -= hdh_p->pc_count;
2004 hdh_p->pc_count = 0;
2005 if (hdh_p->count == 0)
2006 *hdh_pp = hdh_p->next;
2008 hdh_pp = &hdh_p->next;
2013 if (hh->dyn_relocs != NULL)
2015 if (!ensure_undef_dynamic (info, eh))
2019 else if (ELIMINATE_COPY_RELOCS)
2021 /* For the non-shared case, discard space for relocs against
2022 symbols which turn out to need copy relocs or are not
2025 if (eh->dynamic_adjusted
2027 && !ELF_COMMON_DEF_P (eh))
2029 if (!ensure_undef_dynamic (info, eh))
2032 if (eh->dynindx == -1)
2033 hh->dyn_relocs = NULL;
2036 hh->dyn_relocs = NULL;
2039 /* Finally, allocate space. */
2040 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->next)
2042 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2043 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
2049 /* This function is called via elf_link_hash_traverse to force
2050 millicode symbols local so they do not end up as globals in the
2051 dynamic symbol table. We ought to be able to do this in
2052 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2053 for all dynamic symbols. Arguably, this is a bug in
2054 elf_adjust_dynamic_symbol. */
2057 clobber_millicode_symbols (struct elf_link_hash_entry *eh,
2058 struct bfd_link_info *info)
2060 if (eh->type == STT_PARISC_MILLI
2061 && !eh->forced_local)
2063 elf32_hppa_hide_symbol (info, eh, TRUE);
2068 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2069 read-only sections. */
2072 maybe_set_textrel (struct elf_link_hash_entry *eh, void *inf)
2076 if (eh->root.type == bfd_link_hash_indirect)
2079 sec = readonly_dynrelocs (eh);
2082 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2084 info->flags |= DF_TEXTREL;
2085 info->callbacks->minfo
2086 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2087 sec->owner, eh->root.root.string, sec);
2089 /* Not an error, just cut short the traversal. */
2095 /* Set the sizes of the dynamic sections. */
2098 elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2099 struct bfd_link_info *info)
2101 struct elf32_hppa_link_hash_table *htab;
2107 htab = hppa_link_hash_table (info);
2111 dynobj = htab->etab.dynobj;
2115 if (htab->etab.dynamic_sections_created)
2117 /* Set the contents of the .interp section to the interpreter. */
2118 if (bfd_link_executable (info) && !info->nointerp)
2120 sec = bfd_get_linker_section (dynobj, ".interp");
2123 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2124 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2127 /* Force millicode symbols local. */
2128 elf_link_hash_traverse (&htab->etab,
2129 clobber_millicode_symbols,
2133 /* Set up .got and .plt offsets for local syms, and space for local
2135 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2137 bfd_signed_vma *local_got;
2138 bfd_signed_vma *end_local_got;
2139 bfd_signed_vma *local_plt;
2140 bfd_signed_vma *end_local_plt;
2141 bfd_size_type locsymcount;
2142 Elf_Internal_Shdr *symtab_hdr;
2144 char *local_tls_type;
2146 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2149 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
2151 struct elf_dyn_relocs *hdh_p;
2153 for (hdh_p = ((struct elf_dyn_relocs *)
2154 elf_section_data (sec)->local_dynrel);
2156 hdh_p = hdh_p->next)
2158 if (!bfd_is_abs_section (hdh_p->sec)
2159 && bfd_is_abs_section (hdh_p->sec->output_section))
2161 /* Input section has been discarded, either because
2162 it is a copy of a linkonce section or due to
2163 linker script /DISCARD/, so we'll be discarding
2166 else if (hdh_p->count != 0)
2168 srel = elf_section_data (hdh_p->sec)->sreloc;
2169 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2170 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
2171 info->flags |= DF_TEXTREL;
2176 local_got = elf_local_got_refcounts (ibfd);
2180 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2181 locsymcount = symtab_hdr->sh_info;
2182 end_local_got = local_got + locsymcount;
2183 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
2184 sec = htab->etab.sgot;
2185 srel = htab->etab.srelgot;
2186 for (; local_got < end_local_got; ++local_got)
2192 *local_got = sec->size;
2193 need = got_entries_needed (*local_tls_type);
2195 if (bfd_link_pic (info))
2197 bfd_boolean tprel_known = bfd_link_executable (info);
2198 htab->etab.srelgot->size
2199 += got_relocs_needed (*local_tls_type, need, tprel_known);
2203 *local_got = (bfd_vma) -1;
2208 local_plt = end_local_got;
2209 end_local_plt = local_plt + locsymcount;
2210 if (! htab->etab.dynamic_sections_created)
2212 /* Won't be used, but be safe. */
2213 for (; local_plt < end_local_plt; ++local_plt)
2214 *local_plt = (bfd_vma) -1;
2218 sec = htab->etab.splt;
2219 srel = htab->etab.srelplt;
2220 for (; local_plt < end_local_plt; ++local_plt)
2224 *local_plt = sec->size;
2225 sec->size += PLT_ENTRY_SIZE;
2226 if (bfd_link_pic (info))
2227 srel->size += sizeof (Elf32_External_Rela);
2230 *local_plt = (bfd_vma) -1;
2235 if (htab->tls_ldm_got.refcount > 0)
2237 /* Allocate 2 got entries and 1 dynamic reloc for
2238 R_PARISC_TLS_DTPMOD32 relocs. */
2239 htab->tls_ldm_got.offset = htab->etab.sgot->size;
2240 htab->etab.sgot->size += (GOT_ENTRY_SIZE * 2);
2241 htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
2244 htab->tls_ldm_got.offset = -1;
2246 /* Do all the .plt entries without relocs first. The dynamic linker
2247 uses the last .plt reloc to find the end of the .plt (and hence
2248 the start of the .got) for lazy linking. */
2249 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
2251 /* Allocate global sym .plt and .got entries, and space for global
2252 sym dynamic relocs. */
2253 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
2255 /* The check_relocs and adjust_dynamic_symbol entry points have
2256 determined the sizes of the various dynamic sections. Allocate
2259 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
2261 if ((sec->flags & SEC_LINKER_CREATED) == 0)
2264 if (sec == htab->etab.splt)
2266 if (htab->need_plt_stub)
2268 /* Make space for the plt stub at the end of the .plt
2269 section. We want this stub right at the end, up
2270 against the .got section. */
2271 int gotalign = bfd_section_alignment (dynobj, htab->etab.sgot);
2272 int pltalign = bfd_section_alignment (dynobj, sec);
2275 if (gotalign > pltalign)
2276 (void) bfd_set_section_alignment (dynobj, sec, gotalign);
2277 mask = ((bfd_size_type) 1 << gotalign) - 1;
2278 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
2281 else if (sec == htab->etab.sgot
2282 || sec == htab->etab.sdynbss
2283 || sec == htab->etab.sdynrelro)
2285 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
2289 /* Remember whether there are any reloc sections other
2291 if (sec != htab->etab.srelplt)
2294 /* We use the reloc_count field as a counter if we need
2295 to copy relocs into the output file. */
2296 sec->reloc_count = 0;
2301 /* It's not one of our sections, so don't allocate space. */
2307 /* If we don't need this section, strip it from the
2308 output file. This is mostly to handle .rela.bss and
2309 .rela.plt. We must create both sections in
2310 create_dynamic_sections, because they must be created
2311 before the linker maps input sections to output
2312 sections. The linker does that before
2313 adjust_dynamic_symbol is called, and it is that
2314 function which decides whether anything needs to go
2315 into these sections. */
2316 sec->flags |= SEC_EXCLUDE;
2320 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2323 /* Allocate memory for the section contents. Zero it, because
2324 we may not fill in all the reloc sections. */
2325 sec->contents = bfd_zalloc (dynobj, sec->size);
2326 if (sec->contents == NULL)
2330 if (htab->etab.dynamic_sections_created)
2332 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2333 actually has nothing to do with the PLT, it is how we
2334 communicate the LTP value of a load module to the dynamic
2336 #define add_dynamic_entry(TAG, VAL) \
2337 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2339 if (!add_dynamic_entry (DT_PLTGOT, 0))
2342 /* Add some entries to the .dynamic section. We fill in the
2343 values later, in elf32_hppa_finish_dynamic_sections, but we
2344 must add the entries now so that we get the correct size for
2345 the .dynamic section. The DT_DEBUG entry is filled in by the
2346 dynamic linker and used by the debugger. */
2347 if (bfd_link_executable (info))
2349 if (!add_dynamic_entry (DT_DEBUG, 0))
2353 if (htab->etab.srelplt->size != 0)
2355 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2356 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2357 || !add_dynamic_entry (DT_JMPREL, 0))
2363 if (!add_dynamic_entry (DT_RELA, 0)
2364 || !add_dynamic_entry (DT_RELASZ, 0)
2365 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
2368 /* If any dynamic relocs apply to a read-only section,
2369 then we need a DT_TEXTREL entry. */
2370 if ((info->flags & DF_TEXTREL) == 0)
2371 elf_link_hash_traverse (&htab->etab, maybe_set_textrel, info);
2373 if ((info->flags & DF_TEXTREL) != 0)
2375 if (!add_dynamic_entry (DT_TEXTREL, 0))
2380 #undef add_dynamic_entry
2385 /* External entry points for sizing and building linker stubs. */
2387 /* Set up various things so that we can make a list of input sections
2388 for each output section included in the link. Returns -1 on error,
2389 0 when no stubs will be needed, and 1 on success. */
2392 elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
2395 unsigned int bfd_count;
2396 unsigned int top_id, top_index;
2398 asection **input_list, **list;
2400 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2405 /* Count the number of input BFDs and find the top input section id. */
2406 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
2408 input_bfd = input_bfd->link.next)
2411 for (section = input_bfd->sections;
2413 section = section->next)
2415 if (top_id < section->id)
2416 top_id = section->id;
2419 htab->bfd_count = bfd_count;
2421 amt = sizeof (struct map_stub) * (top_id + 1);
2422 htab->stub_group = bfd_zmalloc (amt);
2423 if (htab->stub_group == NULL)
2426 /* We can't use output_bfd->section_count here to find the top output
2427 section index as some sections may have been removed, and
2428 strip_excluded_output_sections doesn't renumber the indices. */
2429 for (section = output_bfd->sections, top_index = 0;
2431 section = section->next)
2433 if (top_index < section->index)
2434 top_index = section->index;
2437 htab->top_index = top_index;
2438 amt = sizeof (asection *) * (top_index + 1);
2439 input_list = bfd_malloc (amt);
2440 htab->input_list = input_list;
2441 if (input_list == NULL)
2444 /* For sections we aren't interested in, mark their entries with a
2445 value we can check later. */
2446 list = input_list + top_index;
2448 *list = bfd_abs_section_ptr;
2449 while (list-- != input_list);
2451 for (section = output_bfd->sections;
2453 section = section->next)
2455 if ((section->flags & SEC_CODE) != 0)
2456 input_list[section->index] = NULL;
2462 /* The linker repeatedly calls this function for each input section,
2463 in the order that input sections are linked into output sections.
2464 Build lists of input sections to determine groupings between which
2465 we may insert linker stubs. */
2468 elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
2470 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2475 if (isec->output_section->index <= htab->top_index)
2477 asection **list = htab->input_list + isec->output_section->index;
2478 if (*list != bfd_abs_section_ptr)
2480 /* Steal the link_sec pointer for our list. */
2481 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2482 /* This happens to make the list in reverse order,
2483 which is what we want. */
2484 PREV_SEC (isec) = *list;
2490 /* See whether we can group stub sections together. Grouping stub
2491 sections may result in fewer stubs. More importantly, we need to
2492 put all .init* and .fini* stubs at the beginning of the .init or
2493 .fini output sections respectively, because glibc splits the
2494 _init and _fini functions into multiple parts. Putting a stub in
2495 the middle of a function is not a good idea. */
2498 group_sections (struct elf32_hppa_link_hash_table *htab,
2499 bfd_size_type stub_group_size,
2500 bfd_boolean stubs_always_before_branch)
2502 asection **list = htab->input_list + htab->top_index;
2505 asection *tail = *list;
2506 if (tail == bfd_abs_section_ptr)
2508 while (tail != NULL)
2512 bfd_size_type total;
2513 bfd_boolean big_sec;
2517 big_sec = total >= stub_group_size;
2519 while ((prev = PREV_SEC (curr)) != NULL
2520 && ((total += curr->output_offset - prev->output_offset)
2524 /* OK, the size from the start of CURR to the end is less
2525 than 240000 bytes and thus can be handled by one stub
2526 section. (or the tail section is itself larger than
2527 240000 bytes, in which case we may be toast.)
2528 We should really be keeping track of the total size of
2529 stubs added here, as stubs contribute to the final output
2530 section size. That's a little tricky, and this way will
2531 only break if stubs added total more than 22144 bytes, or
2532 2768 long branch stubs. It seems unlikely for more than
2533 2768 different functions to be called, especially from
2534 code only 240000 bytes long. This limit used to be
2535 250000, but c++ code tends to generate lots of little
2536 functions, and sometimes violated the assumption. */
2539 prev = PREV_SEC (tail);
2540 /* Set up this stub group. */
2541 htab->stub_group[tail->id].link_sec = curr;
2543 while (tail != curr && (tail = prev) != NULL);
2545 /* But wait, there's more! Input sections up to 240000
2546 bytes before the stub section can be handled by it too.
2547 Don't do this if we have a really large section after the
2548 stubs, as adding more stubs increases the chance that
2549 branches may not reach into the stub section. */
2550 if (!stubs_always_before_branch && !big_sec)
2554 && ((total += tail->output_offset - prev->output_offset)
2558 prev = PREV_SEC (tail);
2559 htab->stub_group[tail->id].link_sec = curr;
2565 while (list-- != htab->input_list);
2566 free (htab->input_list);
2570 /* Read in all local syms for all input bfds, and create hash entries
2571 for export stubs if we are building a multi-subspace shared lib.
2572 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2575 get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
2577 unsigned int bfd_indx;
2578 Elf_Internal_Sym *local_syms, **all_local_syms;
2579 int stub_changed = 0;
2580 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2585 /* We want to read in symbol extension records only once. To do this
2586 we need to read in the local symbols in parallel and save them for
2587 later use; so hold pointers to the local symbols in an array. */
2588 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
2589 all_local_syms = bfd_zmalloc (amt);
2590 htab->all_local_syms = all_local_syms;
2591 if (all_local_syms == NULL)
2594 /* Walk over all the input BFDs, swapping in local symbols.
2595 If we are creating a shared library, create hash entries for the
2599 input_bfd = input_bfd->link.next, bfd_indx++)
2601 Elf_Internal_Shdr *symtab_hdr;
2603 /* We'll need the symbol table in a second. */
2604 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2605 if (symtab_hdr->sh_info == 0)
2608 /* We need an array of the local symbols attached to the input bfd. */
2609 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
2610 if (local_syms == NULL)
2612 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2613 symtab_hdr->sh_info, 0,
2615 /* Cache them for elf_link_input_bfd. */
2616 symtab_hdr->contents = (unsigned char *) local_syms;
2618 if (local_syms == NULL)
2621 all_local_syms[bfd_indx] = local_syms;
2623 if (bfd_link_pic (info) && htab->multi_subspace)
2625 struct elf_link_hash_entry **eh_syms;
2626 struct elf_link_hash_entry **eh_symend;
2627 unsigned int symcount;
2629 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2630 - symtab_hdr->sh_info);
2631 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2632 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
2634 /* Look through the global syms for functions; We need to
2635 build export stubs for all globally visible functions. */
2636 for (; eh_syms < eh_symend; eh_syms++)
2638 struct elf32_hppa_link_hash_entry *hh;
2640 hh = hppa_elf_hash_entry (*eh_syms);
2642 while (hh->eh.root.type == bfd_link_hash_indirect
2643 || hh->eh.root.type == bfd_link_hash_warning)
2644 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2646 /* At this point in the link, undefined syms have been
2647 resolved, so we need to check that the symbol was
2648 defined in this BFD. */
2649 if ((hh->eh.root.type == bfd_link_hash_defined
2650 || hh->eh.root.type == bfd_link_hash_defweak)
2651 && hh->eh.type == STT_FUNC
2652 && hh->eh.root.u.def.section->output_section != NULL
2653 && (hh->eh.root.u.def.section->output_section->owner
2655 && hh->eh.root.u.def.section->owner == input_bfd
2656 && hh->eh.def_regular
2657 && !hh->eh.forced_local
2658 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
2661 const char *stub_name;
2662 struct elf32_hppa_stub_hash_entry *hsh;
2664 sec = hh->eh.root.u.def.section;
2665 stub_name = hh_name (hh);
2666 hsh = hppa_stub_hash_lookup (&htab->bstab,
2671 hsh = hppa_add_stub (stub_name, sec, htab);
2675 hsh->target_value = hh->eh.root.u.def.value;
2676 hsh->target_section = hh->eh.root.u.def.section;
2677 hsh->stub_type = hppa_stub_export;
2683 /* xgettext:c-format */
2684 _bfd_error_handler (_("%pB: duplicate export stub %s"),
2685 input_bfd, stub_name);
2692 return stub_changed;
2695 /* Determine and set the size of the stub section for a final link.
2697 The basic idea here is to examine all the relocations looking for
2698 PC-relative calls to a target that is unreachable with a "bl"
2702 elf32_hppa_size_stubs
2703 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2704 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2705 asection * (*add_stub_section) (const char *, asection *),
2706 void (*layout_sections_again) (void))
2708 bfd_size_type stub_group_size;
2709 bfd_boolean stubs_always_before_branch;
2710 bfd_boolean stub_changed;
2711 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2716 /* Stash our params away. */
2717 htab->stub_bfd = stub_bfd;
2718 htab->multi_subspace = multi_subspace;
2719 htab->add_stub_section = add_stub_section;
2720 htab->layout_sections_again = layout_sections_again;
2721 stubs_always_before_branch = group_size < 0;
2723 stub_group_size = -group_size;
2725 stub_group_size = group_size;
2726 if (stub_group_size == 1)
2728 /* Default values. */
2729 if (stubs_always_before_branch)
2731 stub_group_size = 7680000;
2732 if (htab->has_17bit_branch || htab->multi_subspace)
2733 stub_group_size = 240000;
2734 if (htab->has_12bit_branch)
2735 stub_group_size = 7500;
2739 stub_group_size = 6971392;
2740 if (htab->has_17bit_branch || htab->multi_subspace)
2741 stub_group_size = 217856;
2742 if (htab->has_12bit_branch)
2743 stub_group_size = 6808;
2747 group_sections (htab, stub_group_size, stubs_always_before_branch);
2749 switch (get_local_syms (output_bfd, info->input_bfds, info))
2752 if (htab->all_local_syms)
2753 goto error_ret_free_local;
2757 stub_changed = FALSE;
2761 stub_changed = TRUE;
2768 unsigned int bfd_indx;
2771 for (input_bfd = info->input_bfds, bfd_indx = 0;
2773 input_bfd = input_bfd->link.next, bfd_indx++)
2775 Elf_Internal_Shdr *symtab_hdr;
2777 Elf_Internal_Sym *local_syms;
2779 /* We'll need the symbol table in a second. */
2780 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2781 if (symtab_hdr->sh_info == 0)
2784 local_syms = htab->all_local_syms[bfd_indx];
2786 /* Walk over each section attached to the input bfd. */
2787 for (section = input_bfd->sections;
2789 section = section->next)
2791 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2793 /* If there aren't any relocs, then there's nothing more
2795 if ((section->flags & SEC_RELOC) == 0
2796 || section->reloc_count == 0)
2799 /* If this section is a link-once section that will be
2800 discarded, then don't create any stubs. */
2801 if (section->output_section == NULL
2802 || section->output_section->owner != output_bfd)
2805 /* Get the relocs. */
2807 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
2809 if (internal_relocs == NULL)
2810 goto error_ret_free_local;
2812 /* Now examine each relocation. */
2813 irela = internal_relocs;
2814 irelaend = irela + section->reloc_count;
2815 for (; irela < irelaend; irela++)
2817 unsigned int r_type, r_indx;
2818 enum elf32_hppa_stub_type stub_type;
2819 struct elf32_hppa_stub_hash_entry *hsh;
2822 bfd_vma destination;
2823 struct elf32_hppa_link_hash_entry *hh;
2825 const asection *id_sec;
2827 r_type = ELF32_R_TYPE (irela->r_info);
2828 r_indx = ELF32_R_SYM (irela->r_info);
2830 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2832 bfd_set_error (bfd_error_bad_value);
2833 error_ret_free_internal:
2834 if (elf_section_data (section)->relocs == NULL)
2835 free (internal_relocs);
2836 goto error_ret_free_local;
2839 /* Only look for stubs on call instructions. */
2840 if (r_type != (unsigned int) R_PARISC_PCREL12F
2841 && r_type != (unsigned int) R_PARISC_PCREL17F
2842 && r_type != (unsigned int) R_PARISC_PCREL22F)
2845 /* Now determine the call target, its name, value,
2851 if (r_indx < symtab_hdr->sh_info)
2853 /* It's a local symbol. */
2854 Elf_Internal_Sym *sym;
2855 Elf_Internal_Shdr *hdr;
2858 sym = local_syms + r_indx;
2859 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2860 sym_value = sym->st_value;
2861 shndx = sym->st_shndx;
2862 if (shndx < elf_numsections (input_bfd))
2864 hdr = elf_elfsections (input_bfd)[shndx];
2865 sym_sec = hdr->bfd_section;
2866 destination = (sym_value + irela->r_addend
2867 + sym_sec->output_offset
2868 + sym_sec->output_section->vma);
2873 /* It's an external symbol. */
2876 e_indx = r_indx - symtab_hdr->sh_info;
2877 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
2879 while (hh->eh.root.type == bfd_link_hash_indirect
2880 || hh->eh.root.type == bfd_link_hash_warning)
2881 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2883 if (hh->eh.root.type == bfd_link_hash_defined
2884 || hh->eh.root.type == bfd_link_hash_defweak)
2886 sym_sec = hh->eh.root.u.def.section;
2887 sym_value = hh->eh.root.u.def.value;
2888 if (sym_sec->output_section != NULL)
2889 destination = (sym_value + irela->r_addend
2890 + sym_sec->output_offset
2891 + sym_sec->output_section->vma);
2893 else if (hh->eh.root.type == bfd_link_hash_undefweak)
2895 if (! bfd_link_pic (info))
2898 else if (hh->eh.root.type == bfd_link_hash_undefined)
2900 if (! (info->unresolved_syms_in_objects == RM_IGNORE
2901 && (ELF_ST_VISIBILITY (hh->eh.other)
2903 && hh->eh.type != STT_PARISC_MILLI))
2908 bfd_set_error (bfd_error_bad_value);
2909 goto error_ret_free_internal;
2913 /* Determine what (if any) linker stub is needed. */
2914 stub_type = hppa_type_of_stub (section, irela, hh,
2916 if (stub_type == hppa_stub_none)
2919 /* Support for grouping stub sections. */
2920 id_sec = htab->stub_group[section->id].link_sec;
2922 /* Get the name of this stub. */
2923 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
2925 goto error_ret_free_internal;
2927 hsh = hppa_stub_hash_lookup (&htab->bstab,
2932 /* The proper stub has already been created. */
2937 hsh = hppa_add_stub (stub_name, section, htab);
2941 goto error_ret_free_internal;
2944 hsh->target_value = sym_value;
2945 hsh->target_section = sym_sec;
2946 hsh->stub_type = stub_type;
2947 if (bfd_link_pic (info))
2949 if (stub_type == hppa_stub_import)
2950 hsh->stub_type = hppa_stub_import_shared;
2951 else if (stub_type == hppa_stub_long_branch)
2952 hsh->stub_type = hppa_stub_long_branch_shared;
2955 stub_changed = TRUE;
2958 /* We're done with the internal relocs, free them. */
2959 if (elf_section_data (section)->relocs == NULL)
2960 free (internal_relocs);
2967 /* OK, we've added some stubs. Find out the new size of the
2969 for (stub_sec = htab->stub_bfd->sections;
2971 stub_sec = stub_sec->next)
2972 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
2975 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
2977 /* Ask the linker to do its stuff. */
2978 (*htab->layout_sections_again) ();
2979 stub_changed = FALSE;
2982 free (htab->all_local_syms);
2985 error_ret_free_local:
2986 free (htab->all_local_syms);
2990 /* For a final link, this function is called after we have sized the
2991 stubs to provide a value for __gp. */
2994 elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
2996 struct bfd_link_hash_entry *h;
2997 asection *sec = NULL;
3000 h = bfd_link_hash_lookup (info->hash, "$global$", FALSE, FALSE, FALSE);
3003 && (h->type == bfd_link_hash_defined
3004 || h->type == bfd_link_hash_defweak))
3006 gp_val = h->u.def.value;
3007 sec = h->u.def.section;
3011 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3012 asection *sgot = bfd_get_section_by_name (abfd, ".got");
3014 /* Choose to point our LTP at, in this order, one of .plt, .got,
3015 or .data, if these sections exist. In the case of choosing
3016 .plt try to make the LTP ideal for addressing anywhere in the
3017 .plt or .got with a 14 bit signed offset. Typically, the end
3018 of the .plt is the start of the .got, so choose .plt + 0x2000
3019 if either the .plt or .got is larger than 0x2000. If both
3020 the .plt and .got are smaller than 0x2000, choose the end of
3021 the .plt section. */
3022 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3027 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
3037 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3039 /* We know we don't have a .plt. If .got is large,
3041 if (sec->size > 0x2000)
3047 /* No .plt or .got. Who cares what the LTP is? */
3048 sec = bfd_get_section_by_name (abfd, ".data");
3054 h->type = bfd_link_hash_defined;
3055 h->u.def.value = gp_val;
3057 h->u.def.section = sec;
3059 h->u.def.section = bfd_abs_section_ptr;
3063 if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
3065 if (sec != NULL && sec->output_section != NULL)
3066 gp_val += sec->output_section->vma + sec->output_offset;
3068 elf_gp (abfd) = gp_val;
3073 /* Build all the stubs associated with the current output file. The
3074 stubs are kept in a hash table attached to the main linker hash
3075 table. We also set up the .plt entries for statically linked PIC
3076 functions here. This function is called via hppaelf_finish in the
3080 elf32_hppa_build_stubs (struct bfd_link_info *info)
3083 struct bfd_hash_table *table;
3084 struct elf32_hppa_link_hash_table *htab;
3086 htab = hppa_link_hash_table (info);
3090 for (stub_sec = htab->stub_bfd->sections;
3092 stub_sec = stub_sec->next)
3093 if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
3094 && stub_sec->size != 0)
3096 /* Allocate memory to hold the linker stubs. */
3097 stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
3098 if (stub_sec->contents == NULL)
3103 /* Build the stubs as directed by the stub hash table. */
3104 table = &htab->bstab;
3105 bfd_hash_traverse (table, hppa_build_one_stub, info);
3110 /* Return the base vma address which should be subtracted from the real
3111 address when resolving a dtpoff relocation.
3112 This is PT_TLS segment p_vaddr. */
3115 dtpoff_base (struct bfd_link_info *info)
3117 /* If tls_sec is NULL, we should have signalled an error already. */
3118 if (elf_hash_table (info)->tls_sec == NULL)
3120 return elf_hash_table (info)->tls_sec->vma;
3123 /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3126 tpoff (struct bfd_link_info *info, bfd_vma address)
3128 struct elf_link_hash_table *htab = elf_hash_table (info);
3130 /* If tls_sec is NULL, we should have signalled an error already. */
3131 if (htab->tls_sec == NULL)
3133 /* hppa TLS ABI is variant I and static TLS block start just after
3134 tcbhead structure which has 2 pointer fields. */
3135 return (address - htab->tls_sec->vma
3136 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3139 /* Perform a final link. */
3142 elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
3146 /* Invoke the regular ELF linker to do all the work. */
3147 if (!bfd_elf_final_link (abfd, info))
3150 /* If we're producing a final executable, sort the contents of the
3152 if (bfd_link_relocatable (info))
3155 /* Do not attempt to sort non-regular files. This is here
3156 especially for configure scripts and kernel builds which run
3157 tests with "ld [...] -o /dev/null". */
3158 if (stat (abfd->filename, &buf) != 0
3159 || !S_ISREG(buf.st_mode))
3162 return elf_hppa_sort_unwind (abfd);
3165 /* Record the lowest address for the data and text segments. */
3168 hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
3170 struct elf32_hppa_link_hash_table *htab;
3172 htab = (struct elf32_hppa_link_hash_table*) data;
3176 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3179 Elf_Internal_Phdr *p;
3181 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3182 BFD_ASSERT (p != NULL);
3185 if ((section->flags & SEC_READONLY) != 0)
3187 if (value < htab->text_segment_base)
3188 htab->text_segment_base = value;
3192 if (value < htab->data_segment_base)
3193 htab->data_segment_base = value;
3198 /* Perform a relocation as part of a final link. */
3200 static bfd_reloc_status_type
3201 final_link_relocate (asection *input_section,
3203 const Elf_Internal_Rela *rela,
3205 struct elf32_hppa_link_hash_table *htab,
3207 struct elf32_hppa_link_hash_entry *hh,
3208 struct bfd_link_info *info)
3211 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
3212 unsigned int orig_r_type = r_type;
3213 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3214 int r_format = howto->bitsize;
3215 enum hppa_reloc_field_selector_type_alt r_field;
3216 bfd *input_bfd = input_section->owner;
3217 bfd_vma offset = rela->r_offset;
3218 bfd_vma max_branch_offset = 0;
3219 bfd_byte *hit_data = contents + offset;
3220 bfd_signed_vma addend = rela->r_addend;
3222 struct elf32_hppa_stub_hash_entry *hsh = NULL;
3225 if (r_type == R_PARISC_NONE)
3226 return bfd_reloc_ok;
3228 insn = bfd_get_32 (input_bfd, hit_data);
3230 /* Find out where we are and where we're going. */
3231 location = (offset +
3232 input_section->output_offset +
3233 input_section->output_section->vma);
3235 /* If we are not building a shared library, convert DLTIND relocs to
3237 if (!bfd_link_pic (info))
3241 case R_PARISC_DLTIND21L:
3242 case R_PARISC_TLS_GD21L:
3243 case R_PARISC_TLS_LDM21L:
3244 case R_PARISC_TLS_IE21L:
3245 r_type = R_PARISC_DPREL21L;
3248 case R_PARISC_DLTIND14R:
3249 case R_PARISC_TLS_GD14R:
3250 case R_PARISC_TLS_LDM14R:
3251 case R_PARISC_TLS_IE14R:
3252 r_type = R_PARISC_DPREL14R;
3255 case R_PARISC_DLTIND14F:
3256 r_type = R_PARISC_DPREL14F;
3263 case R_PARISC_PCREL12F:
3264 case R_PARISC_PCREL17F:
3265 case R_PARISC_PCREL22F:
3266 /* If this call should go via the plt, find the import stub in
3269 || sym_sec->output_section == NULL
3271 && hh->eh.plt.offset != (bfd_vma) -1
3272 && hh->eh.dynindx != -1
3274 && (bfd_link_pic (info)
3275 || !hh->eh.def_regular
3276 || hh->eh.root.type == bfd_link_hash_defweak)))
3278 hsh = hppa_get_stub_entry (input_section, sym_sec,
3282 value = (hsh->stub_offset
3283 + hsh->stub_sec->output_offset
3284 + hsh->stub_sec->output_section->vma);
3287 else if (sym_sec == NULL && hh != NULL
3288 && hh->eh.root.type == bfd_link_hash_undefweak)
3290 /* It's OK if undefined weak. Calls to undefined weak
3291 symbols behave as if the "called" function
3292 immediately returns. We can thus call to a weak
3293 function without first checking whether the function
3299 return bfd_reloc_undefined;
3303 case R_PARISC_PCREL21L:
3304 case R_PARISC_PCREL17C:
3305 case R_PARISC_PCREL17R:
3306 case R_PARISC_PCREL14R:
3307 case R_PARISC_PCREL14F:
3308 case R_PARISC_PCREL32:
3309 /* Make it a pc relative offset. */
3314 case R_PARISC_DPREL21L:
3315 case R_PARISC_DPREL14R:
3316 case R_PARISC_DPREL14F:
3317 /* Convert instructions that use the linkage table pointer (r19) to
3318 instructions that use the global data pointer (dp). This is the
3319 most efficient way of using PIC code in an incomplete executable,
3320 but the user must follow the standard runtime conventions for
3321 accessing data for this to work. */
3322 if (orig_r_type != r_type)
3324 if (r_type == R_PARISC_DPREL21L)
3326 /* GCC sometimes uses a register other than r19 for the
3327 operation, so we must convert any addil instruction
3328 that uses this relocation. */
3329 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3332 /* We must have a ldil instruction. It's too hard to find
3333 and convert the associated add instruction, so issue an
3336 /* xgettext:c-format */
3337 (_("%pB(%pA+%#" PRIx64 "): %s fixup for insn %#x "
3338 "is not supported in a non-shared link"),
3345 else if (r_type == R_PARISC_DPREL14F)
3347 /* This must be a format 1 load/store. Change the base
3349 insn = (insn & 0xfc1ffff) | (27 << 21);
3353 /* For all the DP relative relocations, we need to examine the symbol's
3354 section. If it has no section or if it's a code section, then
3355 "data pointer relative" makes no sense. In that case we don't
3356 adjust the "value", and for 21 bit addil instructions, we change the
3357 source addend register from %dp to %r0. This situation commonly
3358 arises for undefined weak symbols and when a variable's "constness"
3359 is declared differently from the way the variable is defined. For
3360 instance: "extern int foo" with foo defined as "const int foo". */
3361 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
3363 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3364 == (((int) OP_ADDIL << 26) | (27 << 21)))
3366 insn &= ~ (0x1f << 21);
3368 /* Now try to make things easy for the dynamic linker. */
3374 case R_PARISC_DLTIND21L:
3375 case R_PARISC_DLTIND14R:
3376 case R_PARISC_DLTIND14F:
3377 case R_PARISC_TLS_GD21L:
3378 case R_PARISC_TLS_LDM21L:
3379 case R_PARISC_TLS_IE21L:
3380 case R_PARISC_TLS_GD14R:
3381 case R_PARISC_TLS_LDM14R:
3382 case R_PARISC_TLS_IE14R:
3383 value -= elf_gp (input_section->output_section->owner);
3386 case R_PARISC_SEGREL32:
3387 if ((sym_sec->flags & SEC_CODE) != 0)
3388 value -= htab->text_segment_base;
3390 value -= htab->data_segment_base;
3399 case R_PARISC_DIR32:
3400 case R_PARISC_DIR14F:
3401 case R_PARISC_DIR17F:
3402 case R_PARISC_PCREL17C:
3403 case R_PARISC_PCREL14F:
3404 case R_PARISC_PCREL32:
3405 case R_PARISC_DPREL14F:
3406 case R_PARISC_PLABEL32:
3407 case R_PARISC_DLTIND14F:
3408 case R_PARISC_SEGBASE:
3409 case R_PARISC_SEGREL32:
3410 case R_PARISC_TLS_DTPMOD32:
3411 case R_PARISC_TLS_DTPOFF32:
3412 case R_PARISC_TLS_TPREL32:
3416 case R_PARISC_DLTIND21L:
3417 case R_PARISC_PCREL21L:
3418 case R_PARISC_PLABEL21L:
3422 case R_PARISC_DIR21L:
3423 case R_PARISC_DPREL21L:
3424 case R_PARISC_TLS_GD21L:
3425 case R_PARISC_TLS_LDM21L:
3426 case R_PARISC_TLS_LDO21L:
3427 case R_PARISC_TLS_IE21L:
3428 case R_PARISC_TLS_LE21L:
3432 case R_PARISC_PCREL17R:
3433 case R_PARISC_PCREL14R:
3434 case R_PARISC_PLABEL14R:
3435 case R_PARISC_DLTIND14R:
3439 case R_PARISC_DIR17R:
3440 case R_PARISC_DIR14R:
3441 case R_PARISC_DPREL14R:
3442 case R_PARISC_TLS_GD14R:
3443 case R_PARISC_TLS_LDM14R:
3444 case R_PARISC_TLS_LDO14R:
3445 case R_PARISC_TLS_IE14R:
3446 case R_PARISC_TLS_LE14R:
3450 case R_PARISC_PCREL12F:
3451 case R_PARISC_PCREL17F:
3452 case R_PARISC_PCREL22F:
3455 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3457 max_branch_offset = (1 << (17-1)) << 2;
3459 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3461 max_branch_offset = (1 << (12-1)) << 2;
3465 max_branch_offset = (1 << (22-1)) << 2;
3468 /* sym_sec is NULL on undefined weak syms or when shared on
3469 undefined syms. We've already checked for a stub for the
3470 shared undefined case. */
3471 if (sym_sec == NULL)
3474 /* If the branch is out of reach, then redirect the
3475 call to the local stub for this function. */
3476 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3478 hsh = hppa_get_stub_entry (input_section, sym_sec,
3481 return bfd_reloc_undefined;
3483 /* Munge up the value and addend so that we call the stub
3484 rather than the procedure directly. */
3485 value = (hsh->stub_offset
3486 + hsh->stub_sec->output_offset
3487 + hsh->stub_sec->output_section->vma
3493 /* Something we don't know how to handle. */
3495 return bfd_reloc_notsupported;
3498 /* Make sure we can reach the stub. */
3499 if (max_branch_offset != 0
3500 && value + addend + max_branch_offset >= 2*max_branch_offset)
3503 /* xgettext:c-format */
3504 (_("%pB(%pA+%#" PRIx64 "): cannot reach %s, "
3505 "recompile with -ffunction-sections"),
3509 hsh->bh_root.string);
3510 bfd_set_error (bfd_error_bad_value);
3511 return bfd_reloc_notsupported;
3514 val = hppa_field_adjust (value, addend, r_field);
3518 case R_PARISC_PCREL12F:
3519 case R_PARISC_PCREL17C:
3520 case R_PARISC_PCREL17F:
3521 case R_PARISC_PCREL17R:
3522 case R_PARISC_PCREL22F:
3523 case R_PARISC_DIR17F:
3524 case R_PARISC_DIR17R:
3525 /* This is a branch. Divide the offset by four.
3526 Note that we need to decide whether it's a branch or
3527 otherwise by inspecting the reloc. Inspecting insn won't
3528 work as insn might be from a .word directive. */
3536 insn = hppa_rebuild_insn (insn, val, r_format);
3538 /* Update the instruction word. */
3539 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
3540 return bfd_reloc_ok;
3543 /* Relocate an HPPA ELF section. */
3546 elf32_hppa_relocate_section (bfd *output_bfd,
3547 struct bfd_link_info *info,
3549 asection *input_section,
3551 Elf_Internal_Rela *relocs,
3552 Elf_Internal_Sym *local_syms,
3553 asection **local_sections)
3555 bfd_vma *local_got_offsets;
3556 struct elf32_hppa_link_hash_table *htab;
3557 Elf_Internal_Shdr *symtab_hdr;
3558 Elf_Internal_Rela *rela;
3559 Elf_Internal_Rela *relend;
3561 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3563 htab = hppa_link_hash_table (info);
3567 local_got_offsets = elf_local_got_offsets (input_bfd);
3570 relend = relocs + input_section->reloc_count;
3571 for (; rela < relend; rela++)
3573 unsigned int r_type;
3574 reloc_howto_type *howto;
3575 unsigned int r_symndx;
3576 struct elf32_hppa_link_hash_entry *hh;
3577 Elf_Internal_Sym *sym;
3580 bfd_reloc_status_type rstatus;
3581 const char *sym_name;
3583 bfd_boolean warned_undef;
3585 r_type = ELF32_R_TYPE (rela->r_info);
3586 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3588 bfd_set_error (bfd_error_bad_value);
3591 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3592 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3595 r_symndx = ELF32_R_SYM (rela->r_info);
3599 warned_undef = FALSE;
3600 if (r_symndx < symtab_hdr->sh_info)
3602 /* This is a local symbol, h defaults to NULL. */
3603 sym = local_syms + r_symndx;
3604 sym_sec = local_sections[r_symndx];
3605 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
3609 struct elf_link_hash_entry *eh;
3610 bfd_boolean unresolved_reloc, ignored;
3611 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
3613 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
3614 r_symndx, symtab_hdr, sym_hashes,
3615 eh, sym_sec, relocation,
3616 unresolved_reloc, warned_undef,
3619 if (!bfd_link_relocatable (info)
3621 && eh->root.type != bfd_link_hash_defined
3622 && eh->root.type != bfd_link_hash_defweak
3623 && eh->root.type != bfd_link_hash_undefweak)
3625 if (info->unresolved_syms_in_objects == RM_IGNORE
3626 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3627 && eh->type == STT_PARISC_MILLI)
3629 (*info->callbacks->undefined_symbol)
3630 (info, eh_name (eh), input_bfd,
3631 input_section, rela->r_offset, FALSE);
3632 warned_undef = TRUE;
3635 hh = hppa_elf_hash_entry (eh);
3638 if (sym_sec != NULL && discarded_section (sym_sec))
3639 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3641 elf_hppa_howto_table + r_type, 0,
3644 if (bfd_link_relocatable (info))
3647 /* Do any required modifications to the relocation value, and
3648 determine what types of dynamic info we need to output, if
3653 case R_PARISC_DLTIND14F:
3654 case R_PARISC_DLTIND14R:
3655 case R_PARISC_DLTIND21L:
3658 bfd_boolean do_got = FALSE;
3659 bfd_boolean reloc = bfd_link_pic (info);
3661 /* Relocation is to the entry for this symbol in the
3662 global offset table. */
3667 off = hh->eh.got.offset;
3668 dyn = htab->etab.dynamic_sections_created;
3669 reloc = (!UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh)
3671 || (hh->eh.dynindx != -1
3672 && !SYMBOL_REFERENCES_LOCAL (info, &hh->eh))));
3674 || !WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3675 bfd_link_pic (info),
3678 /* If we aren't going to call finish_dynamic_symbol,
3679 then we need to handle initialisation of the .got
3680 entry and create needed relocs here. Since the
3681 offset must always be a multiple of 4, we use the
3682 least significant bit to record whether we have
3683 initialised it already. */
3688 hh->eh.got.offset |= 1;
3695 /* Local symbol case. */
3696 if (local_got_offsets == NULL)
3699 off = local_got_offsets[r_symndx];
3701 /* The offset must always be a multiple of 4. We use
3702 the least significant bit to record whether we have
3703 already generated the necessary reloc. */
3708 local_got_offsets[r_symndx] |= 1;
3717 /* Output a dynamic relocation for this GOT entry.
3718 In this case it is relative to the base of the
3719 object because the symbol index is zero. */
3720 Elf_Internal_Rela outrel;
3722 asection *sec = htab->etab.srelgot;
3724 outrel.r_offset = (off
3725 + htab->etab.sgot->output_offset
3726 + htab->etab.sgot->output_section->vma);
3727 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3728 outrel.r_addend = relocation;
3729 loc = sec->contents;
3730 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
3731 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3734 bfd_put_32 (output_bfd, relocation,
3735 htab->etab.sgot->contents + off);
3738 if (off >= (bfd_vma) -2)
3741 /* Add the base of the GOT to the relocation value. */
3743 + htab->etab.sgot->output_offset
3744 + htab->etab.sgot->output_section->vma);
3748 case R_PARISC_SEGREL32:
3749 /* If this is the first SEGREL relocation, then initialize
3750 the segment base values. */
3751 if (htab->text_segment_base == (bfd_vma) -1)
3752 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
3755 case R_PARISC_PLABEL14R:
3756 case R_PARISC_PLABEL21L:
3757 case R_PARISC_PLABEL32:
3758 if (htab->etab.dynamic_sections_created)
3761 bfd_boolean do_plt = 0;
3762 /* If we have a global symbol with a PLT slot, then
3763 redirect this relocation to it. */
3766 off = hh->eh.plt.offset;
3767 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3768 bfd_link_pic (info),
3771 /* In a non-shared link, adjust_dynamic_symbol
3772 isn't called for symbols forced local. We
3773 need to write out the plt entry here. */
3778 hh->eh.plt.offset |= 1;
3785 bfd_vma *local_plt_offsets;
3787 if (local_got_offsets == NULL)
3790 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3791 off = local_plt_offsets[r_symndx];
3793 /* As for the local .got entry case, we use the last
3794 bit to record whether we've already initialised
3795 this local .plt entry. */
3800 local_plt_offsets[r_symndx] |= 1;
3807 if (bfd_link_pic (info))
3809 /* Output a dynamic IPLT relocation for this
3811 Elf_Internal_Rela outrel;
3813 asection *s = htab->etab.srelplt;
3815 outrel.r_offset = (off
3816 + htab->etab.splt->output_offset
3817 + htab->etab.splt->output_section->vma);
3818 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3819 outrel.r_addend = relocation;
3821 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
3822 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3826 bfd_put_32 (output_bfd,
3828 htab->etab.splt->contents + off);
3829 bfd_put_32 (output_bfd,
3830 elf_gp (htab->etab.splt->output_section->owner),
3831 htab->etab.splt->contents + off + 4);
3835 if (off >= (bfd_vma) -2)
3838 /* PLABELs contain function pointers. Relocation is to
3839 the entry for the function in the .plt. The magic +2
3840 offset signals to $$dyncall that the function pointer
3841 is in the .plt and thus has a gp pointer too.
3842 Exception: Undefined PLABELs should have a value of
3845 || (hh->eh.root.type != bfd_link_hash_undefweak
3846 && hh->eh.root.type != bfd_link_hash_undefined))
3849 + htab->etab.splt->output_offset
3850 + htab->etab.splt->output_section->vma
3857 case R_PARISC_DIR17F:
3858 case R_PARISC_DIR17R:
3859 case R_PARISC_DIR14F:
3860 case R_PARISC_DIR14R:
3861 case R_PARISC_DIR21L:
3862 case R_PARISC_DPREL14F:
3863 case R_PARISC_DPREL14R:
3864 case R_PARISC_DPREL21L:
3865 case R_PARISC_DIR32:
3866 if ((input_section->flags & SEC_ALLOC) == 0)
3869 if (bfd_link_pic (info)
3871 || hh->dyn_relocs != NULL)
3872 && ((hh != NULL && pc_dynrelocs (hh))
3873 || IS_ABSOLUTE_RELOC (r_type)))
3875 && hh->dyn_relocs != NULL))
3877 Elf_Internal_Rela outrel;
3882 /* When generating a shared object, these relocations
3883 are copied into the output file to be resolved at run
3886 outrel.r_addend = rela->r_addend;
3888 _bfd_elf_section_offset (output_bfd, info, input_section,
3890 skip = (outrel.r_offset == (bfd_vma) -1
3891 || outrel.r_offset == (bfd_vma) -2);
3892 outrel.r_offset += (input_section->output_offset
3893 + input_section->output_section->vma);
3897 memset (&outrel, 0, sizeof (outrel));
3900 && hh->eh.dynindx != -1
3902 || !IS_ABSOLUTE_RELOC (r_type)
3903 || !bfd_link_pic (info)
3904 || !SYMBOLIC_BIND (info, &hh->eh)
3905 || !hh->eh.def_regular))
3907 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
3909 else /* It's a local symbol, or one marked to become local. */
3913 /* Add the absolute offset of the symbol. */
3914 outrel.r_addend += relocation;
3916 /* Global plabels need to be processed by the
3917 dynamic linker so that functions have at most one
3918 fptr. For this reason, we need to differentiate
3919 between global and local plabels, which we do by
3920 providing the function symbol for a global plabel
3921 reloc, and no symbol for local plabels. */
3924 && sym_sec->output_section != NULL
3925 && ! bfd_is_abs_section (sym_sec))
3929 osec = sym_sec->output_section;
3930 indx = elf_section_data (osec)->dynindx;
3933 osec = htab->etab.text_index_section;
3934 indx = elf_section_data (osec)->dynindx;
3936 BFD_ASSERT (indx != 0);
3938 /* We are turning this relocation into one
3939 against a section symbol, so subtract out the
3940 output section's address but not the offset
3941 of the input section in the output section. */
3942 outrel.r_addend -= osec->vma;
3945 outrel.r_info = ELF32_R_INFO (indx, r_type);
3947 sreloc = elf_section_data (input_section)->sreloc;
3951 loc = sreloc->contents;
3952 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
3953 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3957 case R_PARISC_TLS_LDM21L:
3958 case R_PARISC_TLS_LDM14R:
3962 off = htab->tls_ldm_got.offset;
3967 Elf_Internal_Rela outrel;
3970 outrel.r_offset = (off
3971 + htab->etab.sgot->output_section->vma
3972 + htab->etab.sgot->output_offset);
3973 outrel.r_addend = 0;
3974 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
3975 loc = htab->etab.srelgot->contents;
3976 loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
3978 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3979 htab->tls_ldm_got.offset |= 1;
3982 /* Add the base of the GOT to the relocation value. */
3984 + htab->etab.sgot->output_offset
3985 + htab->etab.sgot->output_section->vma);
3990 case R_PARISC_TLS_LDO21L:
3991 case R_PARISC_TLS_LDO14R:
3992 relocation -= dtpoff_base (info);
3995 case R_PARISC_TLS_GD21L:
3996 case R_PARISC_TLS_GD14R:
3997 case R_PARISC_TLS_IE21L:
3998 case R_PARISC_TLS_IE14R:
4007 if (!htab->etab.dynamic_sections_created
4008 || hh->eh.dynindx == -1
4009 || SYMBOL_REFERENCES_LOCAL (info, &hh->eh)
4010 || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh))
4011 /* This is actually a static link, or it is a
4012 -Bsymbolic link and the symbol is defined
4013 locally, or the symbol was forced to be local
4014 because of a version file. */
4017 indx = hh->eh.dynindx;
4018 off = hh->eh.got.offset;
4019 tls_type = hh->tls_type;
4023 off = local_got_offsets[r_symndx];
4024 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4027 if (tls_type == GOT_UNKNOWN)
4034 bfd_boolean need_relocs = FALSE;
4035 Elf_Internal_Rela outrel;
4036 bfd_byte *loc = NULL;
4039 /* The GOT entries have not been initialized yet. Do it
4040 now, and emit any relocations. If both an IE GOT and a
4041 GD GOT are necessary, we emit the GD first. */
4044 || (bfd_link_pic (info)
4046 || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh))))
4049 loc = htab->etab.srelgot->contents;
4050 loc += (htab->etab.srelgot->reloc_count
4051 * sizeof (Elf32_External_Rela));
4054 if (tls_type & GOT_TLS_GD)
4060 + htab->etab.sgot->output_section->vma
4061 + htab->etab.sgot->output_offset);
4063 = ELF32_R_INFO (indx, R_PARISC_TLS_DTPMOD32);
4064 outrel.r_addend = 0;
4065 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4066 htab->etab.srelgot->reloc_count++;
4067 loc += sizeof (Elf32_External_Rela);
4069 = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4070 outrel.r_offset += 4;
4071 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4072 htab->etab.srelgot->reloc_count++;
4073 loc += sizeof (Elf32_External_Rela);
4074 bfd_put_32 (output_bfd, 0,
4075 htab->etab.sgot->contents + cur_off);
4076 bfd_put_32 (output_bfd, 0,
4077 htab->etab.sgot->contents + cur_off + 4);
4081 /* If we are not emitting relocations for a
4082 general dynamic reference, then we must be in a
4083 static link or an executable link with the
4084 symbol binding locally. Mark it as belonging
4085 to module 1, the executable. */
4086 bfd_put_32 (output_bfd, 1,
4087 htab->etab.sgot->contents + cur_off);
4088 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4089 htab->etab.sgot->contents + cur_off + 4);
4094 if (tls_type & GOT_TLS_IE)
4097 && !(bfd_link_executable (info)
4098 && SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4102 + htab->etab.sgot->output_section->vma
4103 + htab->etab.sgot->output_offset);
4104 outrel.r_info = ELF32_R_INFO (indx,
4105 R_PARISC_TLS_TPREL32);
4107 outrel.r_addend = relocation - dtpoff_base (info);
4109 outrel.r_addend = 0;
4110 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4111 htab->etab.srelgot->reloc_count++;
4112 loc += sizeof (Elf32_External_Rela);
4115 bfd_put_32 (output_bfd, tpoff (info, relocation),
4116 htab->etab.sgot->contents + cur_off);
4121 hh->eh.got.offset |= 1;
4123 local_got_offsets[r_symndx] |= 1;
4126 if ((tls_type & GOT_NORMAL) != 0
4127 && (tls_type & (GOT_TLS_GD | GOT_TLS_LDM | GOT_TLS_IE)) != 0)
4130 _bfd_error_handler (_("%s has both normal and TLS relocs"),
4134 Elf_Internal_Sym *isym
4135 = bfd_sym_from_r_symndx (&htab->sym_cache,
4136 input_bfd, r_symndx);
4140 = bfd_elf_string_from_elf_section (input_bfd,
4141 symtab_hdr->sh_link,
4143 if (sym_name == NULL)
4145 if (*sym_name == '\0')
4146 sym_name = bfd_section_name (input_bfd, sym_sec);
4148 (_("%pB:%s has both normal and TLS relocs"),
4149 input_bfd, sym_name);
4151 bfd_set_error (bfd_error_bad_value);
4155 if ((tls_type & GOT_TLS_GD)
4156 && r_type != R_PARISC_TLS_GD21L
4157 && r_type != R_PARISC_TLS_GD14R)
4158 off += 2 * GOT_ENTRY_SIZE;
4160 /* Add the base of the GOT to the relocation value. */
4162 + htab->etab.sgot->output_offset
4163 + htab->etab.sgot->output_section->vma);
4168 case R_PARISC_TLS_LE21L:
4169 case R_PARISC_TLS_LE14R:
4171 relocation = tpoff (info, relocation);
4180 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4181 htab, sym_sec, hh, info);
4183 if (rstatus == bfd_reloc_ok)
4187 sym_name = hh_name (hh);
4190 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4191 symtab_hdr->sh_link,
4193 if (sym_name == NULL)
4195 if (*sym_name == '\0')
4196 sym_name = bfd_section_name (input_bfd, sym_sec);
4199 howto = elf_hppa_howto_table + r_type;
4201 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
4203 if (rstatus == bfd_reloc_notsupported || !warned_undef)
4206 /* xgettext:c-format */
4207 (_("%pB(%pA+%#" PRIx64 "): cannot handle %s for %s"),
4210 (uint64_t) rela->r_offset,
4213 bfd_set_error (bfd_error_bad_value);
4218 (*info->callbacks->reloc_overflow)
4219 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4220 (bfd_vma) 0, input_bfd, input_section, rela->r_offset);
4226 /* Finish up dynamic symbol handling. We set the contents of various
4227 dynamic sections here. */
4230 elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4231 struct bfd_link_info *info,
4232 struct elf_link_hash_entry *eh,
4233 Elf_Internal_Sym *sym)
4235 struct elf32_hppa_link_hash_table *htab;
4236 Elf_Internal_Rela rela;
4239 htab = hppa_link_hash_table (info);
4243 if (eh->plt.offset != (bfd_vma) -1)
4247 if (eh->plt.offset & 1)
4250 /* This symbol has an entry in the procedure linkage table. Set
4253 The format of a plt entry is
4258 if (eh->root.type == bfd_link_hash_defined
4259 || eh->root.type == bfd_link_hash_defweak)
4261 value = eh->root.u.def.value;
4262 if (eh->root.u.def.section->output_section != NULL)
4263 value += (eh->root.u.def.section->output_offset
4264 + eh->root.u.def.section->output_section->vma);
4267 /* Create a dynamic IPLT relocation for this entry. */
4268 rela.r_offset = (eh->plt.offset
4269 + htab->etab.splt->output_offset
4270 + htab->etab.splt->output_section->vma);
4271 if (eh->dynindx != -1)
4273 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4278 /* This symbol has been marked to become local, and is
4279 used by a plabel so must be kept in the .plt. */
4280 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4281 rela.r_addend = value;
4284 loc = htab->etab.srelplt->contents;
4285 loc += htab->etab.srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
4286 bfd_elf32_swap_reloca_out (htab->etab.splt->output_section->owner, &rela, loc);
4288 if (!eh->def_regular)
4290 /* Mark the symbol as undefined, rather than as defined in
4291 the .plt section. Leave the value alone. */
4292 sym->st_shndx = SHN_UNDEF;
4296 if (eh->got.offset != (bfd_vma) -1
4297 && (hppa_elf_hash_entry (eh)->tls_type & GOT_NORMAL) != 0
4298 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh))
4300 bfd_boolean is_dyn = (eh->dynindx != -1
4301 && !SYMBOL_REFERENCES_LOCAL (info, eh));
4303 if (is_dyn || bfd_link_pic (info))
4305 /* This symbol has an entry in the global offset table. Set
4308 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
4309 + htab->etab.sgot->output_offset
4310 + htab->etab.sgot->output_section->vma);
4312 /* If this is a -Bsymbolic link and the symbol is defined
4313 locally or was forced to be local because of a version
4314 file, we just want to emit a RELATIVE reloc. The entry
4315 in the global offset table will already have been
4316 initialized in the relocate_section function. */
4319 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4320 rela.r_addend = (eh->root.u.def.value
4321 + eh->root.u.def.section->output_offset
4322 + eh->root.u.def.section->output_section->vma);
4326 if ((eh->got.offset & 1) != 0)
4329 bfd_put_32 (output_bfd, 0,
4330 htab->etab.sgot->contents + (eh->got.offset & ~1));
4331 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4335 loc = htab->etab.srelgot->contents;
4336 loc += (htab->etab.srelgot->reloc_count++
4337 * sizeof (Elf32_External_Rela));
4338 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4346 /* This symbol needs a copy reloc. Set it up. */
4348 if (! (eh->dynindx != -1
4349 && (eh->root.type == bfd_link_hash_defined
4350 || eh->root.type == bfd_link_hash_defweak)))
4353 rela.r_offset = (eh->root.u.def.value
4354 + eh->root.u.def.section->output_offset
4355 + eh->root.u.def.section->output_section->vma);
4357 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4358 if (eh->root.u.def.section == htab->etab.sdynrelro)
4359 sec = htab->etab.sreldynrelro;
4361 sec = htab->etab.srelbss;
4362 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4363 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4366 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4367 if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
4369 sym->st_shndx = SHN_ABS;
4375 /* Used to decide how to sort relocs in an optimal manner for the
4376 dynamic linker, before writing them out. */
4378 static enum elf_reloc_type_class
4379 elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4380 const asection *rel_sec ATTRIBUTE_UNUSED,
4381 const Elf_Internal_Rela *rela)
4383 /* Handle TLS relocs first; we don't want them to be marked
4384 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
4386 switch ((int) ELF32_R_TYPE (rela->r_info))
4388 case R_PARISC_TLS_DTPMOD32:
4389 case R_PARISC_TLS_DTPOFF32:
4390 case R_PARISC_TLS_TPREL32:
4391 return reloc_class_normal;
4394 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
4395 return reloc_class_relative;
4397 switch ((int) ELF32_R_TYPE (rela->r_info))
4400 return reloc_class_plt;
4402 return reloc_class_copy;
4404 return reloc_class_normal;
4408 /* Finish up the dynamic sections. */
4411 elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4412 struct bfd_link_info *info)
4415 struct elf32_hppa_link_hash_table *htab;
4419 htab = hppa_link_hash_table (info);
4423 dynobj = htab->etab.dynobj;
4425 sgot = htab->etab.sgot;
4426 /* A broken linker script might have discarded the dynamic sections.
4427 Catch this here so that we do not seg-fault later on. */
4428 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4431 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4433 if (htab->etab.dynamic_sections_created)
4435 Elf32_External_Dyn *dyncon, *dynconend;
4440 dyncon = (Elf32_External_Dyn *) sdyn->contents;
4441 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4442 for (; dyncon < dynconend; dyncon++)
4444 Elf_Internal_Dyn dyn;
4447 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4455 /* Use PLTGOT to set the GOT register. */
4456 dyn.d_un.d_ptr = elf_gp (output_bfd);
4460 s = htab->etab.srelplt;
4461 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4465 s = htab->etab.srelplt;
4466 dyn.d_un.d_val = s->size;
4470 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4474 if (sgot != NULL && sgot->size != 0)
4476 /* Fill in the first entry in the global offset table.
4477 We use it to point to our dynamic section, if we have one. */
4478 bfd_put_32 (output_bfd,
4479 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
4482 /* The second entry is reserved for use by the dynamic linker. */
4483 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
4485 /* Set .got entry size. */
4486 elf_section_data (sgot->output_section)
4487 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
4490 if (htab->etab.splt != NULL && htab->etab.splt->size != 0)
4492 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4493 plt stubs and as such the section does not hold a table of fixed-size
4495 elf_section_data (htab->etab.splt->output_section)->this_hdr.sh_entsize = 0;
4497 if (htab->need_plt_stub)
4499 /* Set up the .plt stub. */
4500 memcpy (htab->etab.splt->contents
4501 + htab->etab.splt->size - sizeof (plt_stub),
4502 plt_stub, sizeof (plt_stub));
4504 if ((htab->etab.splt->output_offset
4505 + htab->etab.splt->output_section->vma
4506 + htab->etab.splt->size)
4507 != (sgot->output_offset
4508 + sgot->output_section->vma))
4511 (_(".got section not immediately after .plt section"));
4520 /* Called when writing out an object file to decide the type of a
4523 elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
4525 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4526 return STT_PARISC_MILLI;
4531 /* Misc BFD support code. */
4532 #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4533 #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4534 #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4535 #define elf_info_to_howto elf_hppa_info_to_howto
4536 #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4538 /* Stuff for the BFD linker. */
4539 #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4540 #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4541 #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4542 #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4543 #define elf_backend_check_relocs elf32_hppa_check_relocs
4544 #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
4545 #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4546 #define elf_backend_fake_sections elf_hppa_fake_sections
4547 #define elf_backend_relocate_section elf32_hppa_relocate_section
4548 #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4549 #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4550 #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4551 #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4552 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4553 #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4554 #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4555 #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4556 #define elf_backend_object_p elf32_hppa_object_p
4557 #define elf_backend_final_write_processing elf_hppa_final_write_processing
4558 #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4559 #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4560 #define elf_backend_action_discarded elf_hppa_action_discarded
4562 #define elf_backend_can_gc_sections 1
4563 #define elf_backend_can_refcount 1
4564 #define elf_backend_plt_alignment 2
4565 #define elf_backend_want_got_plt 0
4566 #define elf_backend_plt_readonly 0
4567 #define elf_backend_want_plt_sym 0
4568 #define elf_backend_got_header_size 8
4569 #define elf_backend_want_dynrelro 1
4570 #define elf_backend_rela_normal 1
4571 #define elf_backend_dtrel_excludes_plt 1
4572 #define elf_backend_no_page_alias 1
4574 #define TARGET_BIG_SYM hppa_elf32_vec
4575 #define TARGET_BIG_NAME "elf32-hppa"
4576 #define ELF_ARCH bfd_arch_hppa
4577 #define ELF_TARGET_ID HPPA32_ELF_DATA
4578 #define ELF_MACHINE_CODE EM_PARISC
4579 #define ELF_MAXPAGESIZE 0x1000
4580 #define ELF_OSABI ELFOSABI_HPUX
4581 #define elf32_bed elf32_hppa_hpux_bed
4583 #include "elf32-target.h"
4585 #undef TARGET_BIG_SYM
4586 #define TARGET_BIG_SYM hppa_elf32_linux_vec
4587 #undef TARGET_BIG_NAME
4588 #define TARGET_BIG_NAME "elf32-hppa-linux"
4590 #define ELF_OSABI ELFOSABI_GNU
4592 #define elf32_bed elf32_hppa_linux_bed
4594 #include "elf32-target.h"
4596 #undef TARGET_BIG_SYM
4597 #define TARGET_BIG_SYM hppa_elf32_nbsd_vec
4598 #undef TARGET_BIG_NAME
4599 #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4601 #define ELF_OSABI ELFOSABI_NETBSD
4603 #define elf32_bed elf32_hppa_netbsd_bed
4605 #include "elf32-target.h"