1 /* BFD back-end for HP PA-RISC ELF files.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001,
3 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
6 Center for Software Science
7 Department of Computer Science
9 Largely rewritten by Alan Modra <alan@linuxcare.com.au>
11 This file is part of BFD, the Binary File Descriptor library.
13 This program is free software; you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; either version 2 of the License, or
16 (at your option) any later version.
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
23 You should have received a copy of the GNU General Public License
24 along with this program; if not, write to the Free Software
25 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
33 #include "elf32-hppa.h"
35 #include "elf32-hppa.h"
38 /* In order to gain some understanding of code in this file without
39 knowing all the intricate details of the linker, note the
42 Functions named elf32_hppa_* are called by external routines, other
43 functions are only called locally. elf32_hppa_* functions appear
44 in this file more or less in the order in which they are called
45 from external routines. eg. elf32_hppa_check_relocs is called
46 early in the link process, elf32_hppa_finish_dynamic_sections is
47 one of the last functions. */
49 /* We use two hash tables to hold information for linking PA ELF objects.
51 The first is the elf32_hppa_link_hash_table which is derived
52 from the standard ELF linker hash table. We use this as a place to
53 attach other hash tables and static information.
55 The second is the stub hash table which is derived from the
56 base BFD hash table. The stub hash table holds the information
57 necessary to build the linker stubs during a link.
59 There are a number of different stubs generated by the linker.
67 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
68 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
70 Import stub to call shared library routine from normal object file
71 (single sub-space version)
72 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
73 : ldw RR'lt_ptr+ltoff(%r1),%r21
75 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
77 Import stub to call shared library routine from shared library
78 (single sub-space version)
79 : addil LR'ltoff,%r19 ; get procedure entry point
80 : ldw RR'ltoff(%r1),%r21
82 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
84 Import stub to call shared library routine from normal object file
85 (multiple sub-space support)
86 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
87 : ldw RR'lt_ptr+ltoff(%r1),%r21
88 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
91 : be 0(%sr0,%r21) ; branch to target
92 : stw %rp,-24(%sp) ; save rp
94 Import stub to call shared library routine from shared library
95 (multiple sub-space support)
96 : addil LR'ltoff,%r19 ; get procedure entry point
97 : ldw RR'ltoff(%r1),%r21
98 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
101 : be 0(%sr0,%r21) ; branch to target
102 : stw %rp,-24(%sp) ; save rp
104 Export stub to return from shared lib routine (multiple sub-space support)
105 One of these is created for each exported procedure in a shared
106 library (and stored in the shared lib). Shared lib routines are
107 called via the first instruction in the export stub so that we can
108 do an inter-space return. Not required for single sub-space.
109 : bl,n X,%rp ; trap the return
111 : ldw -24(%sp),%rp ; restore the original rp
114 : be,n 0(%sr0,%rp) ; inter-space return. */
116 #define PLT_ENTRY_SIZE 8
117 #define GOT_ENTRY_SIZE 4
118 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
120 static const bfd_byte plt_stub[] =
122 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
123 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
124 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
125 #define PLT_STUB_ENTRY (3*4)
126 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
127 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
128 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
129 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
132 /* Section name for stubs is the associated section name plus this
134 #define STUB_SUFFIX ".stub"
136 /* We don't need to copy certain PC- or GP-relative dynamic relocs
137 into a shared object's dynamic section. All the relocs of the
138 limited class we are interested in, are absolute. */
139 #ifndef RELATIVE_DYNRELOCS
140 #define RELATIVE_DYNRELOCS 0
141 #define IS_ABSOLUTE_RELOC(r_type) 1
144 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
145 copying dynamic variables from a shared lib into an app's dynbss
146 section, and instead use a dynamic relocation to point into the
148 #define ELIMINATE_COPY_RELOCS 1
150 enum elf32_hppa_stub_type {
151 hppa_stub_long_branch,
152 hppa_stub_long_branch_shared,
154 hppa_stub_import_shared,
159 struct elf32_hppa_stub_hash_entry {
161 /* Base hash table entry structure. */
162 struct bfd_hash_entry root;
164 /* The stub section. */
167 /* Offset within stub_sec of the beginning of this stub. */
170 /* Given the symbol's value and its section we can determine its final
171 value when building the stubs (so the stub knows where to jump. */
172 bfd_vma target_value;
173 asection *target_section;
175 enum elf32_hppa_stub_type stub_type;
177 /* The symbol table entry, if any, that this was derived from. */
178 struct elf32_hppa_link_hash_entry *h;
180 /* Where this stub is being called from, or, in the case of combined
181 stub sections, the first input section in the group. */
185 struct elf32_hppa_link_hash_entry {
187 struct elf_link_hash_entry elf;
189 /* A pointer to the most recently used stub hash entry against this
191 struct elf32_hppa_stub_hash_entry *stub_cache;
193 /* Used to count relocations for delayed sizing of relocation
195 struct elf32_hppa_dyn_reloc_entry {
197 /* Next relocation in the chain. */
198 struct elf32_hppa_dyn_reloc_entry *next;
200 /* The input section of the reloc. */
203 /* Number of relocs copied in this section. */
206 #if RELATIVE_DYNRELOCS
207 /* Number of relative relocs copied for the input section. */
208 bfd_size_type relative_count;
212 /* Set if this symbol is used by a plabel reloc. */
213 unsigned int plabel:1;
216 struct elf32_hppa_link_hash_table {
218 /* The main hash table. */
219 struct elf_link_hash_table elf;
221 /* The stub hash table. */
222 struct bfd_hash_table stub_hash_table;
224 /* Linker stub bfd. */
227 /* Linker call-backs. */
228 asection * (*add_stub_section) (const char *, asection *);
229 void (*layout_sections_again) (void);
231 /* Array to keep track of which stub sections have been created, and
232 information on stub grouping. */
234 /* This is the section to which stubs in the group will be
237 /* The stub section. */
241 /* Assorted information used by elf32_hppa_size_stubs. */
242 unsigned int bfd_count;
244 asection **input_list;
245 Elf_Internal_Sym **all_local_syms;
247 /* Short-cuts to get to dynamic linker sections. */
255 /* Used during a final link to store the base of the text and data
256 segments so that we can perform SEGREL relocations. */
257 bfd_vma text_segment_base;
258 bfd_vma data_segment_base;
260 /* Whether we support multiple sub-spaces for shared libs. */
261 unsigned int multi_subspace:1;
263 /* Flags set when various size branches are detected. Used to
264 select suitable defaults for the stub group size. */
265 unsigned int has_12bit_branch:1;
266 unsigned int has_17bit_branch:1;
267 unsigned int has_22bit_branch:1;
269 /* Set if we need a .plt stub to support lazy dynamic linking. */
270 unsigned int need_plt_stub:1;
272 /* Small local sym to section mapping cache. */
273 struct sym_sec_cache sym_sec;
276 /* Various hash macros and functions. */
277 #define hppa_link_hash_table(p) \
278 ((struct elf32_hppa_link_hash_table *) ((p)->hash))
280 #define hppa_stub_hash_lookup(table, string, create, copy) \
281 ((struct elf32_hppa_stub_hash_entry *) \
282 bfd_hash_lookup ((table), (string), (create), (copy)))
284 /* Assorted hash table functions. */
286 /* Initialize an entry in the stub hash table. */
288 static struct bfd_hash_entry *
289 stub_hash_newfunc (struct bfd_hash_entry *entry,
290 struct bfd_hash_table *table,
293 /* Allocate the structure if it has not already been allocated by a
297 entry = bfd_hash_allocate (table,
298 sizeof (struct elf32_hppa_stub_hash_entry));
303 /* Call the allocation method of the superclass. */
304 entry = bfd_hash_newfunc (entry, table, string);
307 struct elf32_hppa_stub_hash_entry *eh;
309 /* Initialize the local fields. */
310 eh = (struct elf32_hppa_stub_hash_entry *) entry;
313 eh->target_value = 0;
314 eh->target_section = NULL;
315 eh->stub_type = hppa_stub_long_branch;
323 /* Initialize an entry in the link hash table. */
325 static struct bfd_hash_entry *
326 hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
327 struct bfd_hash_table *table,
330 /* Allocate the structure if it has not already been allocated by a
334 entry = bfd_hash_allocate (table,
335 sizeof (struct elf32_hppa_link_hash_entry));
340 /* Call the allocation method of the superclass. */
341 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
344 struct elf32_hppa_link_hash_entry *eh;
346 /* Initialize the local fields. */
347 eh = (struct elf32_hppa_link_hash_entry *) entry;
348 eh->stub_cache = NULL;
349 eh->dyn_relocs = NULL;
356 /* Create the derived linker hash table. The PA ELF port uses the derived
357 hash table to keep information specific to the PA ELF linker (without
358 using static variables). */
360 static struct bfd_link_hash_table *
361 elf32_hppa_link_hash_table_create (bfd *abfd)
363 struct elf32_hppa_link_hash_table *ret;
364 bfd_size_type amt = sizeof (*ret);
366 ret = bfd_malloc (amt);
370 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, hppa_link_hash_newfunc))
376 /* Init the stub hash table too. */
377 if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc))
380 ret->stub_bfd = NULL;
381 ret->add_stub_section = NULL;
382 ret->layout_sections_again = NULL;
383 ret->stub_group = NULL;
390 ret->text_segment_base = (bfd_vma) -1;
391 ret->data_segment_base = (bfd_vma) -1;
392 ret->multi_subspace = 0;
393 ret->has_12bit_branch = 0;
394 ret->has_17bit_branch = 0;
395 ret->has_22bit_branch = 0;
396 ret->need_plt_stub = 0;
397 ret->sym_sec.abfd = NULL;
399 return &ret->elf.root;
402 /* Free the derived linker hash table. */
405 elf32_hppa_link_hash_table_free (struct bfd_link_hash_table *hash)
407 struct elf32_hppa_link_hash_table *ret
408 = (struct elf32_hppa_link_hash_table *) hash;
410 bfd_hash_table_free (&ret->stub_hash_table);
411 _bfd_generic_link_hash_table_free (hash);
414 /* Build a name for an entry in the stub hash table. */
417 hppa_stub_name (const asection *input_section,
418 const asection *sym_sec,
419 const struct elf32_hppa_link_hash_entry *hash,
420 const Elf_Internal_Rela *rel)
427 len = 8 + 1 + strlen (hash->elf.root.root.string) + 1 + 8 + 1;
428 stub_name = bfd_malloc (len);
429 if (stub_name != NULL)
431 sprintf (stub_name, "%08x_%s+%x",
432 input_section->id & 0xffffffff,
433 hash->elf.root.root.string,
434 (int) rel->r_addend & 0xffffffff);
439 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
440 stub_name = bfd_malloc (len);
441 if (stub_name != NULL)
443 sprintf (stub_name, "%08x_%x:%x+%x",
444 input_section->id & 0xffffffff,
445 sym_sec->id & 0xffffffff,
446 (int) ELF32_R_SYM (rel->r_info) & 0xffffffff,
447 (int) rel->r_addend & 0xffffffff);
453 /* Look up an entry in the stub hash. Stub entries are cached because
454 creating the stub name takes a bit of time. */
456 static struct elf32_hppa_stub_hash_entry *
457 hppa_get_stub_entry (const asection *input_section,
458 const asection *sym_sec,
459 struct elf32_hppa_link_hash_entry *hash,
460 const Elf_Internal_Rela *rel,
461 struct elf32_hppa_link_hash_table *htab)
463 struct elf32_hppa_stub_hash_entry *stub_entry;
464 const asection *id_sec;
466 /* If this input section is part of a group of sections sharing one
467 stub section, then use the id of the first section in the group.
468 Stub names need to include a section id, as there may well be
469 more than one stub used to reach say, printf, and we need to
470 distinguish between them. */
471 id_sec = htab->stub_group[input_section->id].link_sec;
473 if (hash != NULL && hash->stub_cache != NULL
474 && hash->stub_cache->h == hash
475 && hash->stub_cache->id_sec == id_sec)
477 stub_entry = hash->stub_cache;
483 stub_name = hppa_stub_name (id_sec, sym_sec, hash, rel);
484 if (stub_name == NULL)
487 stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table,
488 stub_name, FALSE, FALSE);
490 hash->stub_cache = stub_entry;
498 /* Add a new stub entry to the stub hash. Not all fields of the new
499 stub entry are initialised. */
501 static struct elf32_hppa_stub_hash_entry *
502 hppa_add_stub (const char *stub_name,
504 struct elf32_hppa_link_hash_table *htab)
508 struct elf32_hppa_stub_hash_entry *stub_entry;
510 link_sec = htab->stub_group[section->id].link_sec;
511 stub_sec = htab->stub_group[section->id].stub_sec;
512 if (stub_sec == NULL)
514 stub_sec = htab->stub_group[link_sec->id].stub_sec;
515 if (stub_sec == NULL)
521 namelen = strlen (link_sec->name);
522 len = namelen + sizeof (STUB_SUFFIX);
523 s_name = bfd_alloc (htab->stub_bfd, len);
527 memcpy (s_name, link_sec->name, namelen);
528 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
529 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
530 if (stub_sec == NULL)
532 htab->stub_group[link_sec->id].stub_sec = stub_sec;
534 htab->stub_group[section->id].stub_sec = stub_sec;
537 /* Enter this entry into the linker stub hash table. */
538 stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, stub_name,
540 if (stub_entry == NULL)
542 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
548 stub_entry->stub_sec = stub_sec;
549 stub_entry->stub_offset = 0;
550 stub_entry->id_sec = link_sec;
554 /* Determine the type of stub needed, if any, for a call. */
556 static enum elf32_hppa_stub_type
557 hppa_type_of_stub (asection *input_sec,
558 const Elf_Internal_Rela *rel,
559 struct elf32_hppa_link_hash_entry *hash,
561 struct bfd_link_info *info)
564 bfd_vma branch_offset;
565 bfd_vma max_branch_offset;
569 && hash->elf.plt.offset != (bfd_vma) -1
570 && hash->elf.dynindx != -1
573 || !hash->elf.def_regular
574 || hash->elf.root.type == bfd_link_hash_defweak))
576 /* We need an import stub. Decide between hppa_stub_import
577 and hppa_stub_import_shared later. */
578 return hppa_stub_import;
581 /* Determine where the call point is. */
582 location = (input_sec->output_offset
583 + input_sec->output_section->vma
586 branch_offset = destination - location - 8;
587 r_type = ELF32_R_TYPE (rel->r_info);
589 /* Determine if a long branch stub is needed. parisc branch offsets
590 are relative to the second instruction past the branch, ie. +8
591 bytes on from the branch instruction location. The offset is
592 signed and counts in units of 4 bytes. */
593 if (r_type == (unsigned int) R_PARISC_PCREL17F)
595 max_branch_offset = (1 << (17-1)) << 2;
597 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
599 max_branch_offset = (1 << (12-1)) << 2;
601 else /* R_PARISC_PCREL22F. */
603 max_branch_offset = (1 << (22-1)) << 2;
606 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
607 return hppa_stub_long_branch;
609 return hppa_stub_none;
612 /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
613 IN_ARG contains the link info pointer. */
615 #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
616 #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
618 #define BL_R1 0xe8200000 /* b,l .+8,%r1 */
619 #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
620 #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
622 #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
623 #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
624 #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
625 #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
627 #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
628 #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
630 #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
631 #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
632 #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
633 #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
635 #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
636 #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
637 #define NOP 0x08000240 /* nop */
638 #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
639 #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
640 #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
647 #define LDW_R1_DLT LDW_R1_R19
649 #define LDW_R1_DLT LDW_R1_DP
653 hppa_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
655 struct elf32_hppa_stub_hash_entry *stub_entry;
656 struct bfd_link_info *info;
657 struct elf32_hppa_link_hash_table *htab;
667 /* Massage our args to the form they really have. */
668 stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry;
671 htab = hppa_link_hash_table (info);
672 stub_sec = stub_entry->stub_sec;
674 /* Make a note of the offset within the stubs for this entry. */
675 stub_entry->stub_offset = stub_sec->size;
676 loc = stub_sec->contents + stub_entry->stub_offset;
678 stub_bfd = stub_sec->owner;
680 switch (stub_entry->stub_type)
682 case hppa_stub_long_branch:
683 /* Create the long branch. A long branch is formed with "ldil"
684 loading the upper bits of the target address into a register,
685 then branching with "be" which adds in the lower bits.
686 The "be" has its delay slot nullified. */
687 sym_value = (stub_entry->target_value
688 + stub_entry->target_section->output_offset
689 + stub_entry->target_section->output_section->vma);
691 val = hppa_field_adjust (sym_value, 0, e_lrsel);
692 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
693 bfd_put_32 (stub_bfd, insn, loc);
695 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
696 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
697 bfd_put_32 (stub_bfd, insn, loc + 4);
702 case hppa_stub_long_branch_shared:
703 /* Branches are relative. This is where we are going to. */
704 sym_value = (stub_entry->target_value
705 + stub_entry->target_section->output_offset
706 + stub_entry->target_section->output_section->vma);
708 /* And this is where we are coming from, more or less. */
709 sym_value -= (stub_entry->stub_offset
710 + stub_sec->output_offset
711 + stub_sec->output_section->vma);
713 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
714 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
715 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
716 bfd_put_32 (stub_bfd, insn, loc + 4);
718 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
719 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
720 bfd_put_32 (stub_bfd, insn, loc + 8);
724 case hppa_stub_import:
725 case hppa_stub_import_shared:
726 off = stub_entry->h->elf.plt.offset;
727 if (off >= (bfd_vma) -2)
730 off &= ~ (bfd_vma) 1;
732 + htab->splt->output_offset
733 + htab->splt->output_section->vma
734 - elf_gp (htab->splt->output_section->owner));
738 if (stub_entry->stub_type == hppa_stub_import_shared)
741 val = hppa_field_adjust (sym_value, 0, e_lrsel),
742 insn = hppa_rebuild_insn ((int) insn, val, 21);
743 bfd_put_32 (stub_bfd, insn, loc);
745 /* It is critical to use lrsel/rrsel here because we are using
746 two different offsets (+0 and +4) from sym_value. If we use
747 lsel/rsel then with unfortunate sym_values we will round
748 sym_value+4 up to the next 2k block leading to a mis-match
749 between the lsel and rsel value. */
750 val = hppa_field_adjust (sym_value, 0, e_rrsel);
751 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
752 bfd_put_32 (stub_bfd, insn, loc + 4);
754 if (htab->multi_subspace)
756 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
757 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
758 bfd_put_32 (stub_bfd, insn, loc + 8);
760 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
761 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
762 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
763 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
769 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
770 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
771 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
772 bfd_put_32 (stub_bfd, insn, loc + 12);
779 case hppa_stub_export:
780 /* Branches are relative. This is where we are going to. */
781 sym_value = (stub_entry->target_value
782 + stub_entry->target_section->output_offset
783 + stub_entry->target_section->output_section->vma);
785 /* And this is where we are coming from. */
786 sym_value -= (stub_entry->stub_offset
787 + stub_sec->output_offset
788 + stub_sec->output_section->vma);
790 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
791 && (!htab->has_22bit_branch
792 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
794 (*_bfd_error_handler)
795 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
796 stub_entry->target_section->owner,
798 (long) stub_entry->stub_offset,
799 stub_entry->root.string);
800 bfd_set_error (bfd_error_bad_value);
804 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
805 if (!htab->has_22bit_branch)
806 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
808 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
809 bfd_put_32 (stub_bfd, insn, loc);
811 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
812 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
813 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
814 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
815 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
817 /* Point the function symbol at the stub. */
818 stub_entry->h->elf.root.u.def.section = stub_sec;
819 stub_entry->h->elf.root.u.def.value = stub_sec->size;
829 stub_sec->size += size;
854 /* As above, but don't actually build the stub. Just bump offset so
855 we know stub section sizes. */
858 hppa_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg)
860 struct elf32_hppa_stub_hash_entry *stub_entry;
861 struct elf32_hppa_link_hash_table *htab;
864 /* Massage our args to the form they really have. */
865 stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry;
868 if (stub_entry->stub_type == hppa_stub_long_branch)
870 else if (stub_entry->stub_type == hppa_stub_long_branch_shared)
872 else if (stub_entry->stub_type == hppa_stub_export)
874 else /* hppa_stub_import or hppa_stub_import_shared. */
876 if (htab->multi_subspace)
882 stub_entry->stub_sec->size += size;
886 /* Return nonzero if ABFD represents an HPPA ELF32 file.
887 Additionally we set the default architecture and machine. */
890 elf32_hppa_object_p (bfd *abfd)
892 Elf_Internal_Ehdr * i_ehdrp;
895 i_ehdrp = elf_elfheader (abfd);
896 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
898 /* GCC on hppa-linux produces binaries with OSABI=Linux,
899 but the kernel produces corefiles with OSABI=SysV. */
900 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX &&
901 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
904 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
906 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
907 but the kernel produces corefiles with OSABI=SysV. */
908 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
909 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
914 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
918 flags = i_ehdrp->e_flags;
919 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
922 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
924 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
926 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
927 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
928 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
933 /* Create the .plt and .got sections, and set up our hash table
934 short-cuts to various dynamic sections. */
937 elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
939 struct elf32_hppa_link_hash_table *htab;
940 struct elf_link_hash_entry *h;
942 /* Don't try to create the .plt and .got twice. */
943 htab = hppa_link_hash_table (info);
944 if (htab->splt != NULL)
947 /* Call the generic code to do most of the work. */
948 if (! _bfd_elf_create_dynamic_sections (abfd, info))
951 htab->splt = bfd_get_section_by_name (abfd, ".plt");
952 htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt");
954 htab->sgot = bfd_get_section_by_name (abfd, ".got");
955 htab->srelgot = bfd_make_section_with_flags (abfd, ".rela.got",
962 if (htab->srelgot == NULL
963 || ! bfd_set_section_alignment (abfd, htab->srelgot, 2))
966 htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss");
967 htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss");
969 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
970 application, because __canonicalize_funcptr_for_compare needs it. */
971 h = elf_hash_table (info)->hgot;
973 h->other = STV_DEFAULT;
974 return bfd_elf_link_record_dynamic_symbol (info, h);
977 /* Copy the extra info we tack onto an elf_link_hash_entry. */
980 elf32_hppa_copy_indirect_symbol (const struct elf_backend_data *bed,
981 struct elf_link_hash_entry *dir,
982 struct elf_link_hash_entry *ind)
984 struct elf32_hppa_link_hash_entry *edir, *eind;
986 edir = (struct elf32_hppa_link_hash_entry *) dir;
987 eind = (struct elf32_hppa_link_hash_entry *) ind;
989 if (eind->dyn_relocs != NULL)
991 if (edir->dyn_relocs != NULL)
993 struct elf32_hppa_dyn_reloc_entry **pp;
994 struct elf32_hppa_dyn_reloc_entry *p;
996 if (ind->root.type == bfd_link_hash_indirect)
999 /* Add reloc counts against the weak sym to the strong sym
1000 list. Merge any entries against the same section. */
1001 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1003 struct elf32_hppa_dyn_reloc_entry *q;
1005 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1006 if (q->sec == p->sec)
1008 #if RELATIVE_DYNRELOCS
1009 q->relative_count += p->relative_count;
1011 q->count += p->count;
1018 *pp = edir->dyn_relocs;
1021 edir->dyn_relocs = eind->dyn_relocs;
1022 eind->dyn_relocs = NULL;
1025 if (ELIMINATE_COPY_RELOCS
1026 && ind->root.type != bfd_link_hash_indirect
1027 && dir->dynamic_adjusted)
1029 /* If called to transfer flags for a weakdef during processing
1030 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1031 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
1032 dir->ref_dynamic |= ind->ref_dynamic;
1033 dir->ref_regular |= ind->ref_regular;
1034 dir->ref_regular_nonweak |= ind->ref_regular_nonweak;
1035 dir->needs_plt |= ind->needs_plt;
1038 _bfd_elf_link_hash_copy_indirect (bed, dir, ind);
1041 /* Look through the relocs for a section during the first phase, and
1042 calculate needed space in the global offset table, procedure linkage
1043 table, and dynamic reloc sections. At this point we haven't
1044 necessarily read all the input files. */
1047 elf32_hppa_check_relocs (bfd *abfd,
1048 struct bfd_link_info *info,
1050 const Elf_Internal_Rela *relocs)
1052 Elf_Internal_Shdr *symtab_hdr;
1053 struct elf_link_hash_entry **sym_hashes;
1054 const Elf_Internal_Rela *rel;
1055 const Elf_Internal_Rela *rel_end;
1056 struct elf32_hppa_link_hash_table *htab;
1058 asection *stubreloc;
1060 if (info->relocatable)
1063 htab = hppa_link_hash_table (info);
1064 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1065 sym_hashes = elf_sym_hashes (abfd);
1069 rel_end = relocs + sec->reloc_count;
1070 for (rel = relocs; rel < rel_end; rel++)
1079 unsigned int r_symndx, r_type;
1080 struct elf32_hppa_link_hash_entry *h;
1083 r_symndx = ELF32_R_SYM (rel->r_info);
1085 if (r_symndx < symtab_hdr->sh_info)
1089 h = ((struct elf32_hppa_link_hash_entry *)
1090 sym_hashes[r_symndx - symtab_hdr->sh_info]);
1091 while (h->elf.root.type == bfd_link_hash_indirect
1092 || h->elf.root.type == bfd_link_hash_warning)
1093 h = (struct elf32_hppa_link_hash_entry *) h->elf.root.u.i.link;
1096 r_type = ELF32_R_TYPE (rel->r_info);
1100 case R_PARISC_DLTIND14F:
1101 case R_PARISC_DLTIND14R:
1102 case R_PARISC_DLTIND21L:
1103 /* This symbol requires a global offset table entry. */
1104 need_entry = NEED_GOT;
1107 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1108 case R_PARISC_PLABEL21L:
1109 case R_PARISC_PLABEL32:
1110 /* If the addend is non-zero, we break badly. */
1111 if (rel->r_addend != 0)
1114 /* If we are creating a shared library, then we need to
1115 create a PLT entry for all PLABELs, because PLABELs with
1116 local symbols may be passed via a pointer to another
1117 object. Additionally, output a dynamic relocation
1118 pointing to the PLT entry.
1119 For executables, the original 32-bit ABI allowed two
1120 different styles of PLABELs (function pointers): For
1121 global functions, the PLABEL word points into the .plt
1122 two bytes past a (function address, gp) pair, and for
1123 local functions the PLABEL points directly at the
1124 function. The magic +2 for the first type allows us to
1125 differentiate between the two. As you can imagine, this
1126 is a real pain when it comes to generating code to call
1127 functions indirectly or to compare function pointers.
1128 We avoid the mess by always pointing a PLABEL into the
1129 .plt, even for local functions. */
1130 need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
1133 case R_PARISC_PCREL12F:
1134 htab->has_12bit_branch = 1;
1137 case R_PARISC_PCREL17C:
1138 case R_PARISC_PCREL17F:
1139 htab->has_17bit_branch = 1;
1142 case R_PARISC_PCREL22F:
1143 htab->has_22bit_branch = 1;
1145 /* Function calls might need to go through the .plt, and
1146 might require long branch stubs. */
1149 /* We know local syms won't need a .plt entry, and if
1150 they need a long branch stub we can't guarantee that
1151 we can reach the stub. So just flag an error later
1152 if we're doing a shared link and find we need a long
1158 /* Global symbols will need a .plt entry if they remain
1159 global, and in most cases won't need a long branch
1160 stub. Unfortunately, we have to cater for the case
1161 where a symbol is forced local by versioning, or due
1162 to symbolic linking, and we lose the .plt entry. */
1163 need_entry = NEED_PLT;
1164 if (h->elf.type == STT_PARISC_MILLI)
1169 case R_PARISC_SEGBASE: /* Used to set segment base. */
1170 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
1171 case R_PARISC_PCREL14F: /* PC relative load/store. */
1172 case R_PARISC_PCREL14R:
1173 case R_PARISC_PCREL17R: /* External branches. */
1174 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
1175 case R_PARISC_PCREL32:
1176 /* We don't need to propagate the relocation if linking a
1177 shared object since these are section relative. */
1180 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1181 case R_PARISC_DPREL14R:
1182 case R_PARISC_DPREL21L:
1185 (*_bfd_error_handler)
1186 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1188 elf_hppa_howto_table[r_type].name);
1189 bfd_set_error (bfd_error_bad_value);
1194 case R_PARISC_DIR17F: /* Used for external branches. */
1195 case R_PARISC_DIR17R:
1196 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1197 case R_PARISC_DIR14R:
1198 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
1199 case R_PARISC_DIR32: /* .word relocs. */
1200 /* We may want to output a dynamic relocation later. */
1201 need_entry = NEED_DYNREL;
1204 /* This relocation describes the C++ object vtable hierarchy.
1205 Reconstruct it for later use during GC. */
1206 case R_PARISC_GNU_VTINHERIT:
1207 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &h->elf, rel->r_offset))
1211 /* This relocation describes which C++ vtable entries are actually
1212 used. Record for later use during GC. */
1213 case R_PARISC_GNU_VTENTRY:
1214 if (!bfd_elf_gc_record_vtentry (abfd, sec, &h->elf, rel->r_addend))
1222 /* Now carry out our orders. */
1223 if (need_entry & NEED_GOT)
1225 /* Allocate space for a GOT entry, as well as a dynamic
1226 relocation for this entry. */
1227 if (htab->sgot == NULL)
1229 if (htab->elf.dynobj == NULL)
1230 htab->elf.dynobj = abfd;
1231 if (!elf32_hppa_create_dynamic_sections (htab->elf.dynobj, info))
1237 h->elf.got.refcount += 1;
1241 bfd_signed_vma *local_got_refcounts;
1243 /* This is a global offset table entry for a local symbol. */
1244 local_got_refcounts = elf_local_got_refcounts (abfd);
1245 if (local_got_refcounts == NULL)
1249 /* Allocate space for local got offsets and local
1250 plt offsets. Done this way to save polluting
1251 elf_obj_tdata with another target specific
1253 size = symtab_hdr->sh_info;
1254 size *= 2 * sizeof (bfd_signed_vma);
1255 local_got_refcounts = bfd_zalloc (abfd, size);
1256 if (local_got_refcounts == NULL)
1258 elf_local_got_refcounts (abfd) = local_got_refcounts;
1260 local_got_refcounts[r_symndx] += 1;
1264 if (need_entry & NEED_PLT)
1266 /* If we are creating a shared library, and this is a reloc
1267 against a weak symbol or a global symbol in a dynamic
1268 object, then we will be creating an import stub and a
1269 .plt entry for the symbol. Similarly, on a normal link
1270 to symbols defined in a dynamic object we'll need the
1271 import stub and a .plt entry. We don't know yet whether
1272 the symbol is defined or not, so make an entry anyway and
1273 clean up later in adjust_dynamic_symbol. */
1274 if ((sec->flags & SEC_ALLOC) != 0)
1278 h->elf.needs_plt = 1;
1279 h->elf.plt.refcount += 1;
1281 /* If this .plt entry is for a plabel, mark it so
1282 that adjust_dynamic_symbol will keep the entry
1283 even if it appears to be local. */
1284 if (need_entry & PLT_PLABEL)
1287 else if (need_entry & PLT_PLABEL)
1289 bfd_signed_vma *local_got_refcounts;
1290 bfd_signed_vma *local_plt_refcounts;
1292 local_got_refcounts = elf_local_got_refcounts (abfd);
1293 if (local_got_refcounts == NULL)
1297 /* Allocate space for local got offsets and local
1299 size = symtab_hdr->sh_info;
1300 size *= 2 * sizeof (bfd_signed_vma);
1301 local_got_refcounts = bfd_zalloc (abfd, size);
1302 if (local_got_refcounts == NULL)
1304 elf_local_got_refcounts (abfd) = local_got_refcounts;
1306 local_plt_refcounts = (local_got_refcounts
1307 + symtab_hdr->sh_info);
1308 local_plt_refcounts[r_symndx] += 1;
1313 if (need_entry & NEED_DYNREL)
1315 /* Flag this symbol as having a non-got, non-plt reference
1316 so that we generate copy relocs if it turns out to be
1318 if (h != NULL && !info->shared)
1319 h->elf.non_got_ref = 1;
1321 /* If we are creating a shared library then we need to copy
1322 the reloc into the shared library. However, if we are
1323 linking with -Bsymbolic, we need only copy absolute
1324 relocs or relocs against symbols that are not defined in
1325 an object we are including in the link. PC- or DP- or
1326 DLT-relative relocs against any local sym or global sym
1327 with DEF_REGULAR set, can be discarded. At this point we
1328 have not seen all the input files, so it is possible that
1329 DEF_REGULAR is not set now but will be set later (it is
1330 never cleared). We account for that possibility below by
1331 storing information in the dyn_relocs field of the
1334 A similar situation to the -Bsymbolic case occurs when
1335 creating shared libraries and symbol visibility changes
1336 render the symbol local.
1338 As it turns out, all the relocs we will be creating here
1339 are absolute, so we cannot remove them on -Bsymbolic
1340 links or visibility changes anyway. A STUB_REL reloc
1341 is absolute too, as in that case it is the reloc in the
1342 stub we will be creating, rather than copying the PCREL
1343 reloc in the branch.
1345 If on the other hand, we are creating an executable, we
1346 may need to keep relocations for symbols satisfied by a
1347 dynamic library if we manage to avoid copy relocs for the
1350 && (sec->flags & SEC_ALLOC) != 0
1351 && (IS_ABSOLUTE_RELOC (r_type)
1354 || h->elf.root.type == bfd_link_hash_defweak
1355 || !h->elf.def_regular))))
1356 || (ELIMINATE_COPY_RELOCS
1358 && (sec->flags & SEC_ALLOC) != 0
1360 && (h->elf.root.type == bfd_link_hash_defweak
1361 || !h->elf.def_regular)))
1363 struct elf32_hppa_dyn_reloc_entry *p;
1364 struct elf32_hppa_dyn_reloc_entry **head;
1366 /* Create a reloc section in dynobj and make room for
1373 name = (bfd_elf_string_from_elf_section
1375 elf_elfheader (abfd)->e_shstrndx,
1376 elf_section_data (sec)->rel_hdr.sh_name));
1379 (*_bfd_error_handler)
1380 (_("Could not find relocation section for %s"),
1382 bfd_set_error (bfd_error_bad_value);
1386 if (htab->elf.dynobj == NULL)
1387 htab->elf.dynobj = abfd;
1389 dynobj = htab->elf.dynobj;
1390 sreloc = bfd_get_section_by_name (dynobj, name);
1395 flags = (SEC_HAS_CONTENTS | SEC_READONLY
1396 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1397 if ((sec->flags & SEC_ALLOC) != 0)
1398 flags |= SEC_ALLOC | SEC_LOAD;
1399 sreloc = bfd_make_section_with_flags (dynobj,
1403 || !bfd_set_section_alignment (dynobj, sreloc, 2))
1407 elf_section_data (sec)->sreloc = sreloc;
1410 /* If this is a global symbol, we count the number of
1411 relocations we need for this symbol. */
1414 head = &h->dyn_relocs;
1418 /* Track dynamic relocs needed for local syms too.
1419 We really need local syms available to do this
1423 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
1428 head = ((struct elf32_hppa_dyn_reloc_entry **)
1429 &elf_section_data (s)->local_dynrel);
1433 if (p == NULL || p->sec != sec)
1435 p = bfd_alloc (htab->elf.dynobj, sizeof *p);
1442 #if RELATIVE_DYNRELOCS
1443 p->relative_count = 0;
1448 #if RELATIVE_DYNRELOCS
1449 if (!IS_ABSOLUTE_RELOC (rtype))
1450 p->relative_count += 1;
1459 /* Return the section that should be marked against garbage collection
1460 for a given relocation. */
1463 elf32_hppa_gc_mark_hook (asection *sec,
1464 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1465 Elf_Internal_Rela *rel,
1466 struct elf_link_hash_entry *h,
1467 Elf_Internal_Sym *sym)
1471 switch ((unsigned int) ELF32_R_TYPE (rel->r_info))
1473 case R_PARISC_GNU_VTINHERIT:
1474 case R_PARISC_GNU_VTENTRY:
1478 switch (h->root.type)
1480 case bfd_link_hash_defined:
1481 case bfd_link_hash_defweak:
1482 return h->root.u.def.section;
1484 case bfd_link_hash_common:
1485 return h->root.u.c.p->section;
1493 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
1498 /* Update the got and plt entry reference counts for the section being
1502 elf32_hppa_gc_sweep_hook (bfd *abfd,
1503 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1505 const Elf_Internal_Rela *relocs)
1507 Elf_Internal_Shdr *symtab_hdr;
1508 struct elf_link_hash_entry **sym_hashes;
1509 bfd_signed_vma *local_got_refcounts;
1510 bfd_signed_vma *local_plt_refcounts;
1511 const Elf_Internal_Rela *rel, *relend;
1513 elf_section_data (sec)->local_dynrel = NULL;
1515 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1516 sym_hashes = elf_sym_hashes (abfd);
1517 local_got_refcounts = elf_local_got_refcounts (abfd);
1518 local_plt_refcounts = local_got_refcounts;
1519 if (local_plt_refcounts != NULL)
1520 local_plt_refcounts += symtab_hdr->sh_info;
1522 relend = relocs + sec->reloc_count;
1523 for (rel = relocs; rel < relend; rel++)
1525 unsigned long r_symndx;
1526 unsigned int r_type;
1527 struct elf_link_hash_entry *h = NULL;
1529 r_symndx = ELF32_R_SYM (rel->r_info);
1530 if (r_symndx >= symtab_hdr->sh_info)
1532 struct elf32_hppa_link_hash_entry *eh;
1533 struct elf32_hppa_dyn_reloc_entry **pp;
1534 struct elf32_hppa_dyn_reloc_entry *p;
1536 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1537 while (h->root.type == bfd_link_hash_indirect
1538 || h->root.type == bfd_link_hash_warning)
1539 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1540 eh = (struct elf32_hppa_link_hash_entry *) h;
1542 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1545 /* Everything must go for SEC. */
1551 r_type = ELF32_R_TYPE (rel->r_info);
1554 case R_PARISC_DLTIND14F:
1555 case R_PARISC_DLTIND14R:
1556 case R_PARISC_DLTIND21L:
1559 if (h->got.refcount > 0)
1560 h->got.refcount -= 1;
1562 else if (local_got_refcounts != NULL)
1564 if (local_got_refcounts[r_symndx] > 0)
1565 local_got_refcounts[r_symndx] -= 1;
1569 case R_PARISC_PCREL12F:
1570 case R_PARISC_PCREL17C:
1571 case R_PARISC_PCREL17F:
1572 case R_PARISC_PCREL22F:
1575 if (h->plt.refcount > 0)
1576 h->plt.refcount -= 1;
1580 case R_PARISC_PLABEL14R:
1581 case R_PARISC_PLABEL21L:
1582 case R_PARISC_PLABEL32:
1585 if (h->plt.refcount > 0)
1586 h->plt.refcount -= 1;
1588 else if (local_plt_refcounts != NULL)
1590 if (local_plt_refcounts[r_symndx] > 0)
1591 local_plt_refcounts[r_symndx] -= 1;
1603 /* Support for core dump NOTE sections. */
1606 elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1611 switch (note->descsz)
1616 case 396: /* Linux/hppa */
1618 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
1621 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
1630 /* Make a ".reg/999" section. */
1631 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1632 size, note->descpos + offset);
1636 elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1638 switch (note->descsz)
1643 case 124: /* Linux/hppa elf_prpsinfo. */
1644 elf_tdata (abfd)->core_program
1645 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
1646 elf_tdata (abfd)->core_command
1647 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1650 /* Note that for some reason, a spurious space is tacked
1651 onto the end of the args in some (at least one anyway)
1652 implementations, so strip it off if it exists. */
1654 char *command = elf_tdata (abfd)->core_command;
1655 int n = strlen (command);
1657 if (0 < n && command[n - 1] == ' ')
1658 command[n - 1] = '\0';
1664 /* Our own version of hide_symbol, so that we can keep plt entries for
1668 elf32_hppa_hide_symbol (struct bfd_link_info *info,
1669 struct elf_link_hash_entry *h,
1670 bfd_boolean force_local)
1674 h->forced_local = 1;
1675 if (h->dynindx != -1)
1678 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1683 if (! ((struct elf32_hppa_link_hash_entry *) h)->plabel)
1686 h->plt = elf_hash_table (info)->init_plt_refcount;
1690 /* Adjust a symbol defined by a dynamic object and referenced by a
1691 regular object. The current definition is in some section of the
1692 dynamic object, but we're not including those sections. We have to
1693 change the definition to something the rest of the link can
1697 elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
1698 struct elf_link_hash_entry *h)
1700 struct elf32_hppa_link_hash_table *htab;
1702 unsigned int power_of_two;
1704 /* If this is a function, put it in the procedure linkage table. We
1705 will fill in the contents of the procedure linkage table later. */
1706 if (h->type == STT_FUNC
1709 if (h->plt.refcount <= 0
1711 && h->root.type != bfd_link_hash_defweak
1712 && ! ((struct elf32_hppa_link_hash_entry *) h)->plabel
1713 && (!info->shared || info->symbolic)))
1715 /* The .plt entry is not needed when:
1716 a) Garbage collection has removed all references to the
1718 b) We know for certain the symbol is defined in this
1719 object, and it's not a weak definition, nor is the symbol
1720 used by a plabel relocation. Either this object is the
1721 application or we are doing a shared symbolic link. */
1723 h->plt.offset = (bfd_vma) -1;
1730 h->plt.offset = (bfd_vma) -1;
1732 /* If this is a weak symbol, and there is a real definition, the
1733 processor independent code will have arranged for us to see the
1734 real definition first, and we can just use the same value. */
1735 if (h->u.weakdef != NULL)
1737 if (h->u.weakdef->root.type != bfd_link_hash_defined
1738 && h->u.weakdef->root.type != bfd_link_hash_defweak)
1740 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1741 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1742 if (ELIMINATE_COPY_RELOCS)
1743 h->non_got_ref = h->u.weakdef->non_got_ref;
1747 /* This is a reference to a symbol defined by a dynamic object which
1748 is not a function. */
1750 /* If we are creating a shared library, we must presume that the
1751 only references to the symbol are via the global offset table.
1752 For such cases we need not do anything here; the relocations will
1753 be handled correctly by relocate_section. */
1757 /* If there are no references to this symbol that do not use the
1758 GOT, we don't need to generate a copy reloc. */
1759 if (!h->non_got_ref)
1762 if (ELIMINATE_COPY_RELOCS)
1764 struct elf32_hppa_link_hash_entry *eh;
1765 struct elf32_hppa_dyn_reloc_entry *p;
1767 eh = (struct elf32_hppa_link_hash_entry *) h;
1768 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1770 s = p->sec->output_section;
1771 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1775 /* If we didn't find any dynamic relocs in read-only sections, then
1776 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1784 /* We must allocate the symbol in our .dynbss section, which will
1785 become part of the .bss section of the executable. There will be
1786 an entry for this symbol in the .dynsym section. The dynamic
1787 object will contain position independent code, so all references
1788 from the dynamic object to this symbol will go through the global
1789 offset table. The dynamic linker will use the .dynsym entry to
1790 determine the address it must put in the global offset table, so
1791 both the dynamic object and the regular object will refer to the
1792 same memory location for the variable. */
1794 htab = hppa_link_hash_table (info);
1796 /* We must generate a COPY reloc to tell the dynamic linker to
1797 copy the initial value out of the dynamic object and into the
1798 runtime process image. */
1799 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1801 htab->srelbss->size += sizeof (Elf32_External_Rela);
1805 /* We need to figure out the alignment required for this symbol. I
1806 have no idea how other ELF linkers handle this. */
1808 power_of_two = bfd_log2 (h->size);
1809 if (power_of_two > 3)
1812 /* Apply the required alignment. */
1814 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
1815 if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s))
1817 if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two))
1821 /* Define the symbol as being at this point in the section. */
1822 h->root.u.def.section = s;
1823 h->root.u.def.value = s->size;
1825 /* Increment the section size to make room for the symbol. */
1831 /* Allocate space in the .plt for entries that won't have relocations.
1832 ie. plabel entries. */
1835 allocate_plt_static (struct elf_link_hash_entry *h, void *inf)
1837 struct bfd_link_info *info;
1838 struct elf32_hppa_link_hash_table *htab;
1841 if (h->root.type == bfd_link_hash_indirect)
1844 if (h->root.type == bfd_link_hash_warning)
1845 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1848 htab = hppa_link_hash_table (info);
1849 if (htab->elf.dynamic_sections_created
1850 && h->plt.refcount > 0)
1852 /* Make sure this symbol is output as a dynamic symbol.
1853 Undefined weak syms won't yet be marked as dynamic. */
1854 if (h->dynindx == -1
1856 && h->type != STT_PARISC_MILLI)
1858 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1862 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
1864 /* Allocate these later. From this point on, h->plabel
1865 means that the plt entry is only used by a plabel.
1866 We'll be using a normal plt entry for this symbol, so
1867 clear the plabel indicator. */
1868 ((struct elf32_hppa_link_hash_entry *) h)->plabel = 0;
1870 else if (((struct elf32_hppa_link_hash_entry *) h)->plabel)
1872 /* Make an entry in the .plt section for plabel references
1873 that won't have a .plt entry for other reasons. */
1875 h->plt.offset = s->size;
1876 s->size += PLT_ENTRY_SIZE;
1880 /* No .plt entry needed. */
1881 h->plt.offset = (bfd_vma) -1;
1887 h->plt.offset = (bfd_vma) -1;
1894 /* Allocate space in .plt, .got and associated reloc sections for
1898 allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
1900 struct bfd_link_info *info;
1901 struct elf32_hppa_link_hash_table *htab;
1903 struct elf32_hppa_link_hash_entry *eh;
1904 struct elf32_hppa_dyn_reloc_entry *p;
1906 if (h->root.type == bfd_link_hash_indirect)
1909 if (h->root.type == bfd_link_hash_warning)
1910 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1913 htab = hppa_link_hash_table (info);
1914 if (htab->elf.dynamic_sections_created
1915 && h->plt.offset != (bfd_vma) -1
1916 && !((struct elf32_hppa_link_hash_entry *) h)->plabel)
1918 /* Make an entry in the .plt section. */
1920 h->plt.offset = s->size;
1921 s->size += PLT_ENTRY_SIZE;
1923 /* We also need to make an entry in the .rela.plt section. */
1924 htab->srelplt->size += sizeof (Elf32_External_Rela);
1925 htab->need_plt_stub = 1;
1928 if (h->got.refcount > 0)
1930 /* Make sure this symbol is output as a dynamic symbol.
1931 Undefined weak syms won't yet be marked as dynamic. */
1932 if (h->dynindx == -1
1934 && h->type != STT_PARISC_MILLI)
1936 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1941 h->got.offset = s->size;
1942 s->size += GOT_ENTRY_SIZE;
1943 if (htab->elf.dynamic_sections_created
1945 || (h->dynindx != -1
1946 && !h->forced_local)))
1948 htab->srelgot->size += sizeof (Elf32_External_Rela);
1952 h->got.offset = (bfd_vma) -1;
1954 eh = (struct elf32_hppa_link_hash_entry *) h;
1955 if (eh->dyn_relocs == NULL)
1958 /* If this is a -Bsymbolic shared link, then we need to discard all
1959 space allocated for dynamic pc-relative relocs against symbols
1960 defined in a regular object. For the normal shared case, discard
1961 space for relocs that have become local due to symbol visibility
1965 #if RELATIVE_DYNRELOCS
1966 if (SYMBOL_CALLS_LOCAL (info, h))
1968 struct elf32_hppa_dyn_reloc_entry **pp;
1970 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
1972 p->count -= p->relative_count;
1973 p->relative_count = 0;
1982 /* Also discard relocs on undefined weak syms with non-default
1984 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1985 && h->root.type == bfd_link_hash_undefweak)
1986 eh->dyn_relocs = NULL;
1990 /* For the non-shared case, discard space for relocs against
1991 symbols which turn out to need copy relocs or are not
1994 && ((ELIMINATE_COPY_RELOCS
1997 || (htab->elf.dynamic_sections_created
1998 && (h->root.type == bfd_link_hash_undefweak
1999 || h->root.type == bfd_link_hash_undefined))))
2001 /* Make sure this symbol is output as a dynamic symbol.
2002 Undefined weak syms won't yet be marked as dynamic. */
2003 if (h->dynindx == -1
2005 && h->type != STT_PARISC_MILLI)
2007 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2011 /* If that succeeded, we know we'll be keeping all the
2013 if (h->dynindx != -1)
2017 eh->dyn_relocs = NULL;
2023 /* Finally, allocate space. */
2024 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2026 asection *sreloc = elf_section_data (p->sec)->sreloc;
2027 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2033 /* This function is called via elf_link_hash_traverse to force
2034 millicode symbols local so they do not end up as globals in the
2035 dynamic symbol table. We ought to be able to do this in
2036 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2037 for all dynamic symbols. Arguably, this is a bug in
2038 elf_adjust_dynamic_symbol. */
2041 clobber_millicode_symbols (struct elf_link_hash_entry *h,
2042 struct bfd_link_info *info)
2044 if (h->root.type == bfd_link_hash_warning)
2045 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2047 if (h->type == STT_PARISC_MILLI
2048 && !h->forced_local)
2050 elf32_hppa_hide_symbol (info, h, TRUE);
2055 /* Find any dynamic relocs that apply to read-only sections. */
2058 readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf)
2060 struct elf32_hppa_link_hash_entry *eh;
2061 struct elf32_hppa_dyn_reloc_entry *p;
2063 if (h->root.type == bfd_link_hash_warning)
2064 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2066 eh = (struct elf32_hppa_link_hash_entry *) h;
2067 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2069 asection *s = p->sec->output_section;
2071 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2073 struct bfd_link_info *info = inf;
2075 info->flags |= DF_TEXTREL;
2077 /* Not an error, just cut short the traversal. */
2084 /* Set the sizes of the dynamic sections. */
2087 elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2088 struct bfd_link_info *info)
2090 struct elf32_hppa_link_hash_table *htab;
2096 htab = hppa_link_hash_table (info);
2097 dynobj = htab->elf.dynobj;
2101 if (htab->elf.dynamic_sections_created)
2103 /* Set the contents of the .interp section to the interpreter. */
2104 if (info->executable)
2106 s = bfd_get_section_by_name (dynobj, ".interp");
2109 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2110 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2113 /* Force millicode symbols local. */
2114 elf_link_hash_traverse (&htab->elf,
2115 clobber_millicode_symbols,
2119 /* Set up .got and .plt offsets for local syms, and space for local
2121 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2123 bfd_signed_vma *local_got;
2124 bfd_signed_vma *end_local_got;
2125 bfd_signed_vma *local_plt;
2126 bfd_signed_vma *end_local_plt;
2127 bfd_size_type locsymcount;
2128 Elf_Internal_Shdr *symtab_hdr;
2131 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2134 for (s = ibfd->sections; s != NULL; s = s->next)
2136 struct elf32_hppa_dyn_reloc_entry *p;
2138 for (p = ((struct elf32_hppa_dyn_reloc_entry *)
2139 elf_section_data (s)->local_dynrel);
2143 if (!bfd_is_abs_section (p->sec)
2144 && bfd_is_abs_section (p->sec->output_section))
2146 /* Input section has been discarded, either because
2147 it is a copy of a linkonce section or due to
2148 linker script /DISCARD/, so we'll be discarding
2151 else if (p->count != 0)
2153 srel = elf_section_data (p->sec)->sreloc;
2154 srel->size += p->count * sizeof (Elf32_External_Rela);
2155 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2156 info->flags |= DF_TEXTREL;
2161 local_got = elf_local_got_refcounts (ibfd);
2165 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2166 locsymcount = symtab_hdr->sh_info;
2167 end_local_got = local_got + locsymcount;
2169 srel = htab->srelgot;
2170 for (; local_got < end_local_got; ++local_got)
2174 *local_got = s->size;
2175 s->size += GOT_ENTRY_SIZE;
2177 srel->size += sizeof (Elf32_External_Rela);
2180 *local_got = (bfd_vma) -1;
2183 local_plt = end_local_got;
2184 end_local_plt = local_plt + locsymcount;
2185 if (! htab->elf.dynamic_sections_created)
2187 /* Won't be used, but be safe. */
2188 for (; local_plt < end_local_plt; ++local_plt)
2189 *local_plt = (bfd_vma) -1;
2194 srel = htab->srelplt;
2195 for (; local_plt < end_local_plt; ++local_plt)
2199 *local_plt = s->size;
2200 s->size += PLT_ENTRY_SIZE;
2202 srel->size += sizeof (Elf32_External_Rela);
2205 *local_plt = (bfd_vma) -1;
2210 /* Do all the .plt entries without relocs first. The dynamic linker
2211 uses the last .plt reloc to find the end of the .plt (and hence
2212 the start of the .got) for lazy linking. */
2213 elf_link_hash_traverse (&htab->elf, allocate_plt_static, info);
2215 /* Allocate global sym .plt and .got entries, and space for global
2216 sym dynamic relocs. */
2217 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2219 /* The check_relocs and adjust_dynamic_symbol entry points have
2220 determined the sizes of the various dynamic sections. Allocate
2223 for (s = dynobj->sections; s != NULL; s = s->next)
2225 if ((s->flags & SEC_LINKER_CREATED) == 0)
2228 if (s == htab->splt)
2230 if (htab->need_plt_stub)
2232 /* Make space for the plt stub at the end of the .plt
2233 section. We want this stub right at the end, up
2234 against the .got section. */
2235 int gotalign = bfd_section_alignment (dynobj, htab->sgot);
2236 int pltalign = bfd_section_alignment (dynobj, s);
2239 if (gotalign > pltalign)
2240 bfd_set_section_alignment (dynobj, s, gotalign);
2241 mask = ((bfd_size_type) 1 << gotalign) - 1;
2242 s->size = (s->size + sizeof (plt_stub) + mask) & ~mask;
2245 else if (s == htab->sgot)
2247 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
2251 /* Remember whether there are any reloc sections other
2253 if (s != htab->srelplt)
2256 /* We use the reloc_count field as a counter if we need
2257 to copy relocs into the output file. */
2263 /* It's not one of our sections, so don't allocate space. */
2269 /* If we don't need this section, strip it from the
2270 output file. This is mostly to handle .rela.bss and
2271 .rela.plt. We must create both sections in
2272 create_dynamic_sections, because they must be created
2273 before the linker maps input sections to output
2274 sections. The linker does that before
2275 adjust_dynamic_symbol is called, and it is that
2276 function which decides whether anything needs to go
2277 into these sections. */
2278 s->flags |= SEC_EXCLUDE;
2282 /* Allocate memory for the section contents. Zero it, because
2283 we may not fill in all the reloc sections. */
2284 s->contents = bfd_zalloc (dynobj, s->size);
2285 if (s->contents == NULL && s->size != 0)
2289 if (htab->elf.dynamic_sections_created)
2291 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2292 actually has nothing to do with the PLT, it is how we
2293 communicate the LTP value of a load module to the dynamic
2295 #define add_dynamic_entry(TAG, VAL) \
2296 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2298 if (!add_dynamic_entry (DT_PLTGOT, 0))
2301 /* Add some entries to the .dynamic section. We fill in the
2302 values later, in elf32_hppa_finish_dynamic_sections, but we
2303 must add the entries now so that we get the correct size for
2304 the .dynamic section. The DT_DEBUG entry is filled in by the
2305 dynamic linker and used by the debugger. */
2308 if (!add_dynamic_entry (DT_DEBUG, 0))
2312 if (htab->srelplt->size != 0)
2314 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2315 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2316 || !add_dynamic_entry (DT_JMPREL, 0))
2322 if (!add_dynamic_entry (DT_RELA, 0)
2323 || !add_dynamic_entry (DT_RELASZ, 0)
2324 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
2327 /* If any dynamic relocs apply to a read-only section,
2328 then we need a DT_TEXTREL entry. */
2329 if ((info->flags & DF_TEXTREL) == 0)
2330 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
2332 if ((info->flags & DF_TEXTREL) != 0)
2334 if (!add_dynamic_entry (DT_TEXTREL, 0))
2339 #undef add_dynamic_entry
2344 /* External entry points for sizing and building linker stubs. */
2346 /* Set up various things so that we can make a list of input sections
2347 for each output section included in the link. Returns -1 on error,
2348 0 when no stubs will be needed, and 1 on success. */
2351 elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
2354 unsigned int bfd_count;
2355 int top_id, top_index;
2357 asection **input_list, **list;
2359 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2361 /* Count the number of input BFDs and find the top input section id. */
2362 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
2364 input_bfd = input_bfd->link_next)
2367 for (section = input_bfd->sections;
2369 section = section->next)
2371 if (top_id < section->id)
2372 top_id = section->id;
2375 htab->bfd_count = bfd_count;
2377 amt = sizeof (struct map_stub) * (top_id + 1);
2378 htab->stub_group = bfd_zmalloc (amt);
2379 if (htab->stub_group == NULL)
2382 /* We can't use output_bfd->section_count here to find the top output
2383 section index as some sections may have been removed, and
2384 strip_excluded_output_sections doesn't renumber the indices. */
2385 for (section = output_bfd->sections, top_index = 0;
2387 section = section->next)
2389 if (top_index < section->index)
2390 top_index = section->index;
2393 htab->top_index = top_index;
2394 amt = sizeof (asection *) * (top_index + 1);
2395 input_list = bfd_malloc (amt);
2396 htab->input_list = input_list;
2397 if (input_list == NULL)
2400 /* For sections we aren't interested in, mark their entries with a
2401 value we can check later. */
2402 list = input_list + top_index;
2404 *list = bfd_abs_section_ptr;
2405 while (list-- != input_list);
2407 for (section = output_bfd->sections;
2409 section = section->next)
2411 if ((section->flags & SEC_CODE) != 0)
2412 input_list[section->index] = NULL;
2418 /* The linker repeatedly calls this function for each input section,
2419 in the order that input sections are linked into output sections.
2420 Build lists of input sections to determine groupings between which
2421 we may insert linker stubs. */
2424 elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
2426 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2428 if (isec->output_section->index <= htab->top_index)
2430 asection **list = htab->input_list + isec->output_section->index;
2431 if (*list != bfd_abs_section_ptr)
2433 /* Steal the link_sec pointer for our list. */
2434 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2435 /* This happens to make the list in reverse order,
2436 which is what we want. */
2437 PREV_SEC (isec) = *list;
2443 /* See whether we can group stub sections together. Grouping stub
2444 sections may result in fewer stubs. More importantly, we need to
2445 put all .init* and .fini* stubs at the beginning of the .init or
2446 .fini output sections respectively, because glibc splits the
2447 _init and _fini functions into multiple parts. Putting a stub in
2448 the middle of a function is not a good idea. */
2451 group_sections (struct elf32_hppa_link_hash_table *htab,
2452 bfd_size_type stub_group_size,
2453 bfd_boolean stubs_always_before_branch)
2455 asection **list = htab->input_list + htab->top_index;
2458 asection *tail = *list;
2459 if (tail == bfd_abs_section_ptr)
2461 while (tail != NULL)
2465 bfd_size_type total;
2466 bfd_boolean big_sec;
2470 big_sec = total >= stub_group_size;
2472 while ((prev = PREV_SEC (curr)) != NULL
2473 && ((total += curr->output_offset - prev->output_offset)
2477 /* OK, the size from the start of CURR to the end is less
2478 than 240000 bytes and thus can be handled by one stub
2479 section. (or the tail section is itself larger than
2480 240000 bytes, in which case we may be toast.)
2481 We should really be keeping track of the total size of
2482 stubs added here, as stubs contribute to the final output
2483 section size. That's a little tricky, and this way will
2484 only break if stubs added total more than 22144 bytes, or
2485 2768 long branch stubs. It seems unlikely for more than
2486 2768 different functions to be called, especially from
2487 code only 240000 bytes long. This limit used to be
2488 250000, but c++ code tends to generate lots of little
2489 functions, and sometimes violated the assumption. */
2492 prev = PREV_SEC (tail);
2493 /* Set up this stub group. */
2494 htab->stub_group[tail->id].link_sec = curr;
2496 while (tail != curr && (tail = prev) != NULL);
2498 /* But wait, there's more! Input sections up to 240000
2499 bytes before the stub section can be handled by it too.
2500 Don't do this if we have a really large section after the
2501 stubs, as adding more stubs increases the chance that
2502 branches may not reach into the stub section. */
2503 if (!stubs_always_before_branch && !big_sec)
2507 && ((total += tail->output_offset - prev->output_offset)
2511 prev = PREV_SEC (tail);
2512 htab->stub_group[tail->id].link_sec = curr;
2518 while (list-- != htab->input_list);
2519 free (htab->input_list);
2523 /* Read in all local syms for all input bfds, and create hash entries
2524 for export stubs if we are building a multi-subspace shared lib.
2525 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2528 get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
2530 unsigned int bfd_indx;
2531 Elf_Internal_Sym *local_syms, **all_local_syms;
2532 int stub_changed = 0;
2533 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2535 /* We want to read in symbol extension records only once. To do this
2536 we need to read in the local symbols in parallel and save them for
2537 later use; so hold pointers to the local symbols in an array. */
2538 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
2539 all_local_syms = bfd_zmalloc (amt);
2540 htab->all_local_syms = all_local_syms;
2541 if (all_local_syms == NULL)
2544 /* Walk over all the input BFDs, swapping in local symbols.
2545 If we are creating a shared library, create hash entries for the
2549 input_bfd = input_bfd->link_next, bfd_indx++)
2551 Elf_Internal_Shdr *symtab_hdr;
2553 /* We'll need the symbol table in a second. */
2554 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2555 if (symtab_hdr->sh_info == 0)
2558 /* We need an array of the local symbols attached to the input bfd. */
2559 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
2560 if (local_syms == NULL)
2562 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2563 symtab_hdr->sh_info, 0,
2565 /* Cache them for elf_link_input_bfd. */
2566 symtab_hdr->contents = (unsigned char *) local_syms;
2568 if (local_syms == NULL)
2571 all_local_syms[bfd_indx] = local_syms;
2573 if (info->shared && htab->multi_subspace)
2575 struct elf_link_hash_entry **sym_hashes;
2576 struct elf_link_hash_entry **end_hashes;
2577 unsigned int symcount;
2579 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2580 - symtab_hdr->sh_info);
2581 sym_hashes = elf_sym_hashes (input_bfd);
2582 end_hashes = sym_hashes + symcount;
2584 /* Look through the global syms for functions; We need to
2585 build export stubs for all globally visible functions. */
2586 for (; sym_hashes < end_hashes; sym_hashes++)
2588 struct elf32_hppa_link_hash_entry *hash;
2590 hash = (struct elf32_hppa_link_hash_entry *) *sym_hashes;
2592 while (hash->elf.root.type == bfd_link_hash_indirect
2593 || hash->elf.root.type == bfd_link_hash_warning)
2594 hash = ((struct elf32_hppa_link_hash_entry *)
2595 hash->elf.root.u.i.link);
2597 /* At this point in the link, undefined syms have been
2598 resolved, so we need to check that the symbol was
2599 defined in this BFD. */
2600 if ((hash->elf.root.type == bfd_link_hash_defined
2601 || hash->elf.root.type == bfd_link_hash_defweak)
2602 && hash->elf.type == STT_FUNC
2603 && hash->elf.root.u.def.section->output_section != NULL
2604 && (hash->elf.root.u.def.section->output_section->owner
2606 && hash->elf.root.u.def.section->owner == input_bfd
2607 && hash->elf.def_regular
2608 && !hash->elf.forced_local
2609 && ELF_ST_VISIBILITY (hash->elf.other) == STV_DEFAULT)
2612 const char *stub_name;
2613 struct elf32_hppa_stub_hash_entry *stub_entry;
2615 sec = hash->elf.root.u.def.section;
2616 stub_name = hash->elf.root.root.string;
2617 stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table,
2620 if (stub_entry == NULL)
2622 stub_entry = hppa_add_stub (stub_name, sec, htab);
2626 stub_entry->target_value = hash->elf.root.u.def.value;
2627 stub_entry->target_section = hash->elf.root.u.def.section;
2628 stub_entry->stub_type = hppa_stub_export;
2629 stub_entry->h = hash;
2634 (*_bfd_error_handler) (_("%B: duplicate export stub %s"),
2643 return stub_changed;
2646 /* Determine and set the size of the stub section for a final link.
2648 The basic idea here is to examine all the relocations looking for
2649 PC-relative calls to a target that is unreachable with a "bl"
2653 elf32_hppa_size_stubs
2654 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2655 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2656 asection * (*add_stub_section) (const char *, asection *),
2657 void (*layout_sections_again) (void))
2659 bfd_size_type stub_group_size;
2660 bfd_boolean stubs_always_before_branch;
2661 bfd_boolean stub_changed;
2662 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2664 /* Stash our params away. */
2665 htab->stub_bfd = stub_bfd;
2666 htab->multi_subspace = multi_subspace;
2667 htab->add_stub_section = add_stub_section;
2668 htab->layout_sections_again = layout_sections_again;
2669 stubs_always_before_branch = group_size < 0;
2671 stub_group_size = -group_size;
2673 stub_group_size = group_size;
2674 if (stub_group_size == 1)
2676 /* Default values. */
2677 if (stubs_always_before_branch)
2679 stub_group_size = 7680000;
2680 if (htab->has_17bit_branch || htab->multi_subspace)
2681 stub_group_size = 240000;
2682 if (htab->has_12bit_branch)
2683 stub_group_size = 7500;
2687 stub_group_size = 6971392;
2688 if (htab->has_17bit_branch || htab->multi_subspace)
2689 stub_group_size = 217856;
2690 if (htab->has_12bit_branch)
2691 stub_group_size = 6808;
2695 group_sections (htab, stub_group_size, stubs_always_before_branch);
2697 switch (get_local_syms (output_bfd, info->input_bfds, info))
2700 if (htab->all_local_syms)
2701 goto error_ret_free_local;
2705 stub_changed = FALSE;
2709 stub_changed = TRUE;
2716 unsigned int bfd_indx;
2719 for (input_bfd = info->input_bfds, bfd_indx = 0;
2721 input_bfd = input_bfd->link_next, bfd_indx++)
2723 Elf_Internal_Shdr *symtab_hdr;
2725 Elf_Internal_Sym *local_syms;
2727 /* We'll need the symbol table in a second. */
2728 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2729 if (symtab_hdr->sh_info == 0)
2732 local_syms = htab->all_local_syms[bfd_indx];
2734 /* Walk over each section attached to the input bfd. */
2735 for (section = input_bfd->sections;
2737 section = section->next)
2739 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2741 /* If there aren't any relocs, then there's nothing more
2743 if ((section->flags & SEC_RELOC) == 0
2744 || section->reloc_count == 0)
2747 /* If this section is a link-once section that will be
2748 discarded, then don't create any stubs. */
2749 if (section->output_section == NULL
2750 || section->output_section->owner != output_bfd)
2753 /* Get the relocs. */
2755 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
2757 if (internal_relocs == NULL)
2758 goto error_ret_free_local;
2760 /* Now examine each relocation. */
2761 irela = internal_relocs;
2762 irelaend = irela + section->reloc_count;
2763 for (; irela < irelaend; irela++)
2765 unsigned int r_type, r_indx;
2766 enum elf32_hppa_stub_type stub_type;
2767 struct elf32_hppa_stub_hash_entry *stub_entry;
2770 bfd_vma destination;
2771 struct elf32_hppa_link_hash_entry *hash;
2773 const asection *id_sec;
2775 r_type = ELF32_R_TYPE (irela->r_info);
2776 r_indx = ELF32_R_SYM (irela->r_info);
2778 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2780 bfd_set_error (bfd_error_bad_value);
2781 error_ret_free_internal:
2782 if (elf_section_data (section)->relocs == NULL)
2783 free (internal_relocs);
2784 goto error_ret_free_local;
2787 /* Only look for stubs on call instructions. */
2788 if (r_type != (unsigned int) R_PARISC_PCREL12F
2789 && r_type != (unsigned int) R_PARISC_PCREL17F
2790 && r_type != (unsigned int) R_PARISC_PCREL22F)
2793 /* Now determine the call target, its name, value,
2799 if (r_indx < symtab_hdr->sh_info)
2801 /* It's a local symbol. */
2802 Elf_Internal_Sym *sym;
2803 Elf_Internal_Shdr *hdr;
2805 sym = local_syms + r_indx;
2806 hdr = elf_elfsections (input_bfd)[sym->st_shndx];
2807 sym_sec = hdr->bfd_section;
2808 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2809 sym_value = sym->st_value;
2810 destination = (sym_value + irela->r_addend
2811 + sym_sec->output_offset
2812 + sym_sec->output_section->vma);
2816 /* It's an external symbol. */
2819 e_indx = r_indx - symtab_hdr->sh_info;
2820 hash = ((struct elf32_hppa_link_hash_entry *)
2821 elf_sym_hashes (input_bfd)[e_indx]);
2823 while (hash->elf.root.type == bfd_link_hash_indirect
2824 || hash->elf.root.type == bfd_link_hash_warning)
2825 hash = ((struct elf32_hppa_link_hash_entry *)
2826 hash->elf.root.u.i.link);
2828 if (hash->elf.root.type == bfd_link_hash_defined
2829 || hash->elf.root.type == bfd_link_hash_defweak)
2831 sym_sec = hash->elf.root.u.def.section;
2832 sym_value = hash->elf.root.u.def.value;
2833 if (sym_sec->output_section != NULL)
2834 destination = (sym_value + irela->r_addend
2835 + sym_sec->output_offset
2836 + sym_sec->output_section->vma);
2838 else if (hash->elf.root.type == bfd_link_hash_undefweak)
2843 else if (hash->elf.root.type == bfd_link_hash_undefined)
2845 if (! (info->unresolved_syms_in_objects == RM_IGNORE
2846 && (ELF_ST_VISIBILITY (hash->elf.other)
2848 && hash->elf.type != STT_PARISC_MILLI))
2853 bfd_set_error (bfd_error_bad_value);
2854 goto error_ret_free_internal;
2858 /* Determine what (if any) linker stub is needed. */
2859 stub_type = hppa_type_of_stub (section, irela, hash,
2861 if (stub_type == hppa_stub_none)
2864 /* Support for grouping stub sections. */
2865 id_sec = htab->stub_group[section->id].link_sec;
2867 /* Get the name of this stub. */
2868 stub_name = hppa_stub_name (id_sec, sym_sec, hash, irela);
2870 goto error_ret_free_internal;
2872 stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table,
2875 if (stub_entry != NULL)
2877 /* The proper stub has already been created. */
2882 stub_entry = hppa_add_stub (stub_name, section, htab);
2883 if (stub_entry == NULL)
2886 goto error_ret_free_internal;
2889 stub_entry->target_value = sym_value;
2890 stub_entry->target_section = sym_sec;
2891 stub_entry->stub_type = stub_type;
2894 if (stub_type == hppa_stub_import)
2895 stub_entry->stub_type = hppa_stub_import_shared;
2896 else if (stub_type == hppa_stub_long_branch)
2897 stub_entry->stub_type = hppa_stub_long_branch_shared;
2899 stub_entry->h = hash;
2900 stub_changed = TRUE;
2903 /* We're done with the internal relocs, free them. */
2904 if (elf_section_data (section)->relocs == NULL)
2905 free (internal_relocs);
2912 /* OK, we've added some stubs. Find out the new size of the
2914 for (stub_sec = htab->stub_bfd->sections;
2916 stub_sec = stub_sec->next)
2919 bfd_hash_traverse (&htab->stub_hash_table, hppa_size_one_stub, htab);
2921 /* Ask the linker to do its stuff. */
2922 (*htab->layout_sections_again) ();
2923 stub_changed = FALSE;
2926 free (htab->all_local_syms);
2929 error_ret_free_local:
2930 free (htab->all_local_syms);
2934 /* For a final link, this function is called after we have sized the
2935 stubs to provide a value for __gp. */
2938 elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
2940 struct bfd_link_hash_entry *h;
2941 asection *sec = NULL;
2943 struct elf32_hppa_link_hash_table *htab;
2945 htab = hppa_link_hash_table (info);
2946 h = bfd_link_hash_lookup (&htab->elf.root, "$global$", FALSE, FALSE, FALSE);
2949 && (h->type == bfd_link_hash_defined
2950 || h->type == bfd_link_hash_defweak))
2952 gp_val = h->u.def.value;
2953 sec = h->u.def.section;
2957 asection *splt = bfd_get_section_by_name (abfd, ".plt");
2958 asection *sgot = bfd_get_section_by_name (abfd, ".got");
2960 /* Choose to point our LTP at, in this order, one of .plt, .got,
2961 or .data, if these sections exist. In the case of choosing
2962 .plt try to make the LTP ideal for addressing anywhere in the
2963 .plt or .got with a 14 bit signed offset. Typically, the end
2964 of the .plt is the start of the .got, so choose .plt + 0x2000
2965 if either the .plt or .got is larger than 0x2000. If both
2966 the .plt and .got are smaller than 0x2000, choose the end of
2967 the .plt section. */
2968 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
2973 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
2983 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
2985 /* We know we don't have a .plt. If .got is large,
2987 if (sec->size > 0x2000)
2993 /* No .plt or .got. Who cares what the LTP is? */
2994 sec = bfd_get_section_by_name (abfd, ".data");
3000 h->type = bfd_link_hash_defined;
3001 h->u.def.value = gp_val;
3003 h->u.def.section = sec;
3005 h->u.def.section = bfd_abs_section_ptr;
3009 if (sec != NULL && sec->output_section != NULL)
3010 gp_val += sec->output_section->vma + sec->output_offset;
3012 elf_gp (abfd) = gp_val;
3016 /* Build all the stubs associated with the current output file. The
3017 stubs are kept in a hash table attached to the main linker hash
3018 table. We also set up the .plt entries for statically linked PIC
3019 functions here. This function is called via hppaelf_finish in the
3023 elf32_hppa_build_stubs (struct bfd_link_info *info)
3026 struct bfd_hash_table *table;
3027 struct elf32_hppa_link_hash_table *htab;
3029 htab = hppa_link_hash_table (info);
3031 for (stub_sec = htab->stub_bfd->sections;
3033 stub_sec = stub_sec->next)
3037 /* Allocate memory to hold the linker stubs. */
3038 size = stub_sec->size;
3039 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
3040 if (stub_sec->contents == NULL && size != 0)
3045 /* Build the stubs as directed by the stub hash table. */
3046 table = &htab->stub_hash_table;
3047 bfd_hash_traverse (table, hppa_build_one_stub, info);
3052 /* Perform a final link. */
3055 elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
3057 /* Invoke the regular ELF linker to do all the work. */
3058 if (!bfd_elf_final_link (abfd, info))
3061 /* If we're producing a final executable, sort the contents of the
3063 return elf_hppa_sort_unwind (abfd);
3066 /* Record the lowest address for the data and text segments. */
3069 hppa_record_segment_addr (bfd *abfd ATTRIBUTE_UNUSED,
3073 struct elf32_hppa_link_hash_table *htab;
3075 htab = (struct elf32_hppa_link_hash_table *) data;
3077 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3079 bfd_vma value = section->vma - section->filepos;
3081 if ((section->flags & SEC_READONLY) != 0)
3083 if (value < htab->text_segment_base)
3084 htab->text_segment_base = value;
3088 if (value < htab->data_segment_base)
3089 htab->data_segment_base = value;
3094 /* Perform a relocation as part of a final link. */
3096 static bfd_reloc_status_type
3097 final_link_relocate (asection *input_section,
3099 const Elf_Internal_Rela *rel,
3101 struct elf32_hppa_link_hash_table *htab,
3103 struct elf32_hppa_link_hash_entry *h,
3104 struct bfd_link_info *info)
3107 unsigned int r_type = ELF32_R_TYPE (rel->r_info);
3108 unsigned int orig_r_type = r_type;
3109 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3110 int r_format = howto->bitsize;
3111 enum hppa_reloc_field_selector_type_alt r_field;
3112 bfd *input_bfd = input_section->owner;
3113 bfd_vma offset = rel->r_offset;
3114 bfd_vma max_branch_offset = 0;
3115 bfd_byte *hit_data = contents + offset;
3116 bfd_signed_vma addend = rel->r_addend;
3118 struct elf32_hppa_stub_hash_entry *stub_entry = NULL;
3121 if (r_type == R_PARISC_NONE)
3122 return bfd_reloc_ok;
3124 insn = bfd_get_32 (input_bfd, hit_data);
3126 /* Find out where we are and where we're going. */
3127 location = (offset +
3128 input_section->output_offset +
3129 input_section->output_section->vma);
3131 /* If we are not building a shared library, convert DLTIND relocs to
3137 case R_PARISC_DLTIND21L:
3138 r_type = R_PARISC_DPREL21L;
3141 case R_PARISC_DLTIND14R:
3142 r_type = R_PARISC_DPREL14R;
3145 case R_PARISC_DLTIND14F:
3146 r_type = R_PARISC_DPREL14F;
3153 case R_PARISC_PCREL12F:
3154 case R_PARISC_PCREL17F:
3155 case R_PARISC_PCREL22F:
3156 /* If this call should go via the plt, find the import stub in
3159 || sym_sec->output_section == NULL
3161 && h->elf.plt.offset != (bfd_vma) -1
3162 && h->elf.dynindx != -1
3165 || !h->elf.def_regular
3166 || h->elf.root.type == bfd_link_hash_defweak)))
3168 stub_entry = hppa_get_stub_entry (input_section, sym_sec,
3170 if (stub_entry != NULL)
3172 value = (stub_entry->stub_offset
3173 + stub_entry->stub_sec->output_offset
3174 + stub_entry->stub_sec->output_section->vma);
3177 else if (sym_sec == NULL && h != NULL
3178 && h->elf.root.type == bfd_link_hash_undefweak)
3180 /* It's OK if undefined weak. Calls to undefined weak
3181 symbols behave as if the "called" function
3182 immediately returns. We can thus call to a weak
3183 function without first checking whether the function
3189 return bfd_reloc_undefined;
3193 case R_PARISC_PCREL21L:
3194 case R_PARISC_PCREL17C:
3195 case R_PARISC_PCREL17R:
3196 case R_PARISC_PCREL14R:
3197 case R_PARISC_PCREL14F:
3198 case R_PARISC_PCREL32:
3199 /* Make it a pc relative offset. */
3204 case R_PARISC_DPREL21L:
3205 case R_PARISC_DPREL14R:
3206 case R_PARISC_DPREL14F:
3207 /* Convert instructions that use the linkage table pointer (r19) to
3208 instructions that use the global data pointer (dp). This is the
3209 most efficient way of using PIC code in an incomplete executable,
3210 but the user must follow the standard runtime conventions for
3211 accessing data for this to work. */
3212 if (orig_r_type == R_PARISC_DLTIND21L)
3214 /* Convert addil instructions if the original reloc was a
3215 DLTIND21L. GCC sometimes uses a register other than r19 for
3216 the operation, so we must convert any addil instruction
3217 that uses this relocation. */
3218 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3221 /* We must have a ldil instruction. It's too hard to find
3222 and convert the associated add instruction, so issue an
3224 (*_bfd_error_handler)
3225 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3228 (long) rel->r_offset,
3232 else if (orig_r_type == R_PARISC_DLTIND14F)
3234 /* This must be a format 1 load/store. Change the base
3236 insn = (insn & 0xfc1ffff) | (27 << 21);
3239 /* For all the DP relative relocations, we need to examine the symbol's
3240 section. If it has no section or if it's a code section, then
3241 "data pointer relative" makes no sense. In that case we don't
3242 adjust the "value", and for 21 bit addil instructions, we change the
3243 source addend register from %dp to %r0. This situation commonly
3244 arises for undefined weak symbols and when a variable's "constness"
3245 is declared differently from the way the variable is defined. For
3246 instance: "extern int foo" with foo defined as "const int foo". */
3247 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
3249 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3250 == (((int) OP_ADDIL << 26) | (27 << 21)))
3252 insn &= ~ (0x1f << 21);
3254 /* Now try to make things easy for the dynamic linker. */
3260 case R_PARISC_DLTIND21L:
3261 case R_PARISC_DLTIND14R:
3262 case R_PARISC_DLTIND14F:
3263 value -= elf_gp (input_section->output_section->owner);
3266 case R_PARISC_SEGREL32:
3267 if ((sym_sec->flags & SEC_CODE) != 0)
3268 value -= htab->text_segment_base;
3270 value -= htab->data_segment_base;
3279 case R_PARISC_DIR32:
3280 case R_PARISC_DIR14F:
3281 case R_PARISC_DIR17F:
3282 case R_PARISC_PCREL17C:
3283 case R_PARISC_PCREL14F:
3284 case R_PARISC_PCREL32:
3285 case R_PARISC_DPREL14F:
3286 case R_PARISC_PLABEL32:
3287 case R_PARISC_DLTIND14F:
3288 case R_PARISC_SEGBASE:
3289 case R_PARISC_SEGREL32:
3293 case R_PARISC_DLTIND21L:
3294 case R_PARISC_PCREL21L:
3295 case R_PARISC_PLABEL21L:
3299 case R_PARISC_DIR21L:
3300 case R_PARISC_DPREL21L:
3304 case R_PARISC_PCREL17R:
3305 case R_PARISC_PCREL14R:
3306 case R_PARISC_PLABEL14R:
3307 case R_PARISC_DLTIND14R:
3311 case R_PARISC_DIR17R:
3312 case R_PARISC_DIR14R:
3313 case R_PARISC_DPREL14R:
3317 case R_PARISC_PCREL12F:
3318 case R_PARISC_PCREL17F:
3319 case R_PARISC_PCREL22F:
3322 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3324 max_branch_offset = (1 << (17-1)) << 2;
3326 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3328 max_branch_offset = (1 << (12-1)) << 2;
3332 max_branch_offset = (1 << (22-1)) << 2;
3335 /* sym_sec is NULL on undefined weak syms or when shared on
3336 undefined syms. We've already checked for a stub for the
3337 shared undefined case. */
3338 if (sym_sec == NULL)
3341 /* If the branch is out of reach, then redirect the
3342 call to the local stub for this function. */
3343 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3345 stub_entry = hppa_get_stub_entry (input_section, sym_sec,
3347 if (stub_entry == NULL)
3348 return bfd_reloc_undefined;
3350 /* Munge up the value and addend so that we call the stub
3351 rather than the procedure directly. */
3352 value = (stub_entry->stub_offset
3353 + stub_entry->stub_sec->output_offset
3354 + stub_entry->stub_sec->output_section->vma
3360 /* Something we don't know how to handle. */
3362 return bfd_reloc_notsupported;
3365 /* Make sure we can reach the stub. */
3366 if (max_branch_offset != 0
3367 && value + addend + max_branch_offset >= 2*max_branch_offset)
3369 (*_bfd_error_handler)
3370 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3373 (long) rel->r_offset,
3374 stub_entry->root.string);
3375 bfd_set_error (bfd_error_bad_value);
3376 return bfd_reloc_notsupported;
3379 val = hppa_field_adjust (value, addend, r_field);
3383 case R_PARISC_PCREL12F:
3384 case R_PARISC_PCREL17C:
3385 case R_PARISC_PCREL17F:
3386 case R_PARISC_PCREL17R:
3387 case R_PARISC_PCREL22F:
3388 case R_PARISC_DIR17F:
3389 case R_PARISC_DIR17R:
3390 /* This is a branch. Divide the offset by four.
3391 Note that we need to decide whether it's a branch or
3392 otherwise by inspecting the reloc. Inspecting insn won't
3393 work as insn might be from a .word directive. */
3401 insn = hppa_rebuild_insn (insn, val, r_format);
3403 /* Update the instruction word. */
3404 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
3405 return bfd_reloc_ok;
3408 /* Relocate an HPPA ELF section. */
3411 elf32_hppa_relocate_section (bfd *output_bfd,
3412 struct bfd_link_info *info,
3414 asection *input_section,
3416 Elf_Internal_Rela *relocs,
3417 Elf_Internal_Sym *local_syms,
3418 asection **local_sections)
3420 bfd_vma *local_got_offsets;
3421 struct elf32_hppa_link_hash_table *htab;
3422 Elf_Internal_Shdr *symtab_hdr;
3423 Elf_Internal_Rela *rel;
3424 Elf_Internal_Rela *relend;
3426 if (info->relocatable)
3429 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3431 htab = hppa_link_hash_table (info);
3432 local_got_offsets = elf_local_got_offsets (input_bfd);
3435 relend = relocs + input_section->reloc_count;
3436 for (; rel < relend; rel++)
3438 unsigned int r_type;
3439 reloc_howto_type *howto;
3440 unsigned int r_symndx;
3441 struct elf32_hppa_link_hash_entry *h;
3442 Elf_Internal_Sym *sym;
3445 bfd_reloc_status_type r;
3446 const char *sym_name;
3448 bfd_boolean warned_undef;
3450 r_type = ELF32_R_TYPE (rel->r_info);
3451 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3453 bfd_set_error (bfd_error_bad_value);
3456 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3457 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3460 /* This is a final link. */
3461 r_symndx = ELF32_R_SYM (rel->r_info);
3465 warned_undef = FALSE;
3466 if (r_symndx < symtab_hdr->sh_info)
3468 /* This is a local symbol, h defaults to NULL. */
3469 sym = local_syms + r_symndx;
3470 sym_sec = local_sections[r_symndx];
3471 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rel);
3475 struct elf_link_hash_entry *hh;
3476 bfd_boolean unresolved_reloc;
3477 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
3479 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3480 r_symndx, symtab_hdr, sym_hashes,
3481 hh, sym_sec, relocation,
3482 unresolved_reloc, warned_undef);
3485 && hh->root.type != bfd_link_hash_defined
3486 && hh->root.type != bfd_link_hash_defweak
3487 && hh->root.type != bfd_link_hash_undefweak)
3489 if (info->unresolved_syms_in_objects == RM_IGNORE
3490 && ELF_ST_VISIBILITY (hh->other) == STV_DEFAULT
3491 && hh->type == STT_PARISC_MILLI)
3493 if (! info->callbacks->undefined_symbol
3494 (info, hh->root.root.string, input_bfd,
3495 input_section, rel->r_offset, FALSE))
3497 warned_undef = TRUE;
3500 h = (struct elf32_hppa_link_hash_entry *) hh;
3503 /* Do any required modifications to the relocation value, and
3504 determine what types of dynamic info we need to output, if
3509 case R_PARISC_DLTIND14F:
3510 case R_PARISC_DLTIND14R:
3511 case R_PARISC_DLTIND21L:
3514 bfd_boolean do_got = 0;
3516 /* Relocation is to the entry for this symbol in the
3517 global offset table. */
3522 off = h->elf.got.offset;
3523 dyn = htab->elf.dynamic_sections_created;
3524 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
3527 /* If we aren't going to call finish_dynamic_symbol,
3528 then we need to handle initialisation of the .got
3529 entry and create needed relocs here. Since the
3530 offset must always be a multiple of 4, we use the
3531 least significant bit to record whether we have
3532 initialised it already. */
3537 h->elf.got.offset |= 1;
3544 /* Local symbol case. */
3545 if (local_got_offsets == NULL)
3548 off = local_got_offsets[r_symndx];
3550 /* The offset must always be a multiple of 4. We use
3551 the least significant bit to record whether we have
3552 already generated the necessary reloc. */
3557 local_got_offsets[r_symndx] |= 1;
3566 /* Output a dynamic relocation for this GOT entry.
3567 In this case it is relative to the base of the
3568 object because the symbol index is zero. */
3569 Elf_Internal_Rela outrel;
3571 asection *s = htab->srelgot;
3573 outrel.r_offset = (off
3574 + htab->sgot->output_offset
3575 + htab->sgot->output_section->vma);
3576 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3577 outrel.r_addend = relocation;
3579 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
3580 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3583 bfd_put_32 (output_bfd, relocation,
3584 htab->sgot->contents + off);
3587 if (off >= (bfd_vma) -2)
3590 /* Add the base of the GOT to the relocation value. */
3592 + htab->sgot->output_offset
3593 + htab->sgot->output_section->vma);
3597 case R_PARISC_SEGREL32:
3598 /* If this is the first SEGREL relocation, then initialize
3599 the segment base values. */
3600 if (htab->text_segment_base == (bfd_vma) -1)
3601 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
3604 case R_PARISC_PLABEL14R:
3605 case R_PARISC_PLABEL21L:
3606 case R_PARISC_PLABEL32:
3607 if (htab->elf.dynamic_sections_created)
3610 bfd_boolean do_plt = 0;
3612 /* If we have a global symbol with a PLT slot, then
3613 redirect this relocation to it. */
3616 off = h->elf.plt.offset;
3617 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared,
3620 /* In a non-shared link, adjust_dynamic_symbols
3621 isn't called for symbols forced local. We
3622 need to write out the plt entry here. */
3627 h->elf.plt.offset |= 1;
3634 bfd_vma *local_plt_offsets;
3636 if (local_got_offsets == NULL)
3639 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3640 off = local_plt_offsets[r_symndx];
3642 /* As for the local .got entry case, we use the last
3643 bit to record whether we've already initialised
3644 this local .plt entry. */
3649 local_plt_offsets[r_symndx] |= 1;
3658 /* Output a dynamic IPLT relocation for this
3660 Elf_Internal_Rela outrel;
3662 asection *s = htab->srelplt;
3664 outrel.r_offset = (off
3665 + htab->splt->output_offset
3666 + htab->splt->output_section->vma);
3667 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3668 outrel.r_addend = relocation;
3670 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
3671 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3675 bfd_put_32 (output_bfd,
3677 htab->splt->contents + off);
3678 bfd_put_32 (output_bfd,
3679 elf_gp (htab->splt->output_section->owner),
3680 htab->splt->contents + off + 4);
3684 if (off >= (bfd_vma) -2)
3687 /* PLABELs contain function pointers. Relocation is to
3688 the entry for the function in the .plt. The magic +2
3689 offset signals to $$dyncall that the function pointer
3690 is in the .plt and thus has a gp pointer too.
3691 Exception: Undefined PLABELs should have a value of
3694 || (h->elf.root.type != bfd_link_hash_undefweak
3695 && h->elf.root.type != bfd_link_hash_undefined))
3698 + htab->splt->output_offset
3699 + htab->splt->output_section->vma
3704 /* Fall through and possibly emit a dynamic relocation. */
3706 case R_PARISC_DIR17F:
3707 case R_PARISC_DIR17R:
3708 case R_PARISC_DIR14F:
3709 case R_PARISC_DIR14R:
3710 case R_PARISC_DIR21L:
3711 case R_PARISC_DPREL14F:
3712 case R_PARISC_DPREL14R:
3713 case R_PARISC_DPREL21L:
3714 case R_PARISC_DIR32:
3715 /* r_symndx will be zero only for relocs against symbols
3716 from removed linkonce sections, or sections discarded by
3719 || (input_section->flags & SEC_ALLOC) == 0)
3722 /* The reloc types handled here and this conditional
3723 expression must match the code in ..check_relocs and
3724 allocate_dynrelocs. ie. We need exactly the same condition
3725 as in ..check_relocs, with some extra conditions (dynindx
3726 test in this case) to cater for relocs removed by
3727 allocate_dynrelocs. If you squint, the non-shared test
3728 here does indeed match the one in ..check_relocs, the
3729 difference being that here we test DEF_DYNAMIC as well as
3730 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3731 which is why we can't use just that test here.
3732 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3733 there all files have not been loaded. */
3736 || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT
3737 || h->elf.root.type != bfd_link_hash_undefweak)
3738 && (IS_ABSOLUTE_RELOC (r_type)
3739 || !SYMBOL_CALLS_LOCAL (info, &h->elf)))
3742 && h->elf.dynindx != -1
3743 && !h->elf.non_got_ref
3744 && ((ELIMINATE_COPY_RELOCS
3745 && h->elf.def_dynamic
3746 && !h->elf.def_regular)
3747 || h->elf.root.type == bfd_link_hash_undefweak
3748 || h->elf.root.type == bfd_link_hash_undefined)))
3750 Elf_Internal_Rela outrel;
3755 /* When generating a shared object, these relocations
3756 are copied into the output file to be resolved at run
3759 outrel.r_addend = rel->r_addend;
3761 _bfd_elf_section_offset (output_bfd, info, input_section,
3763 skip = (outrel.r_offset == (bfd_vma) -1
3764 || outrel.r_offset == (bfd_vma) -2);
3765 outrel.r_offset += (input_section->output_offset
3766 + input_section->output_section->vma);
3770 memset (&outrel, 0, sizeof (outrel));
3773 && h->elf.dynindx != -1
3775 || !IS_ABSOLUTE_RELOC (r_type)
3778 || !h->elf.def_regular))
3780 outrel.r_info = ELF32_R_INFO (h->elf.dynindx, r_type);
3782 else /* It's a local symbol, or one marked to become local. */
3786 /* Add the absolute offset of the symbol. */
3787 outrel.r_addend += relocation;
3789 /* Global plabels need to be processed by the
3790 dynamic linker so that functions have at most one
3791 fptr. For this reason, we need to differentiate
3792 between global and local plabels, which we do by
3793 providing the function symbol for a global plabel
3794 reloc, and no symbol for local plabels. */
3797 && sym_sec->output_section != NULL
3798 && ! bfd_is_abs_section (sym_sec))
3800 /* Skip this relocation if the output section has
3802 if (bfd_is_abs_section (sym_sec->output_section))
3805 indx = elf_section_data (sym_sec->output_section)->dynindx;
3806 /* We are turning this relocation into one
3807 against a section symbol, so subtract out the
3808 output section's address but not the offset
3809 of the input section in the output section. */
3810 outrel.r_addend -= sym_sec->output_section->vma;
3813 outrel.r_info = ELF32_R_INFO (indx, r_type);
3815 sreloc = elf_section_data (input_section)->sreloc;
3819 loc = sreloc->contents;
3820 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
3821 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3829 r = final_link_relocate (input_section, contents, rel, relocation,
3830 htab, sym_sec, h, info);
3832 if (r == bfd_reloc_ok)
3836 sym_name = h->elf.root.root.string;
3839 sym_name = bfd_elf_string_from_elf_section (input_bfd,
3840 symtab_hdr->sh_link,
3842 if (sym_name == NULL)
3844 if (*sym_name == '\0')
3845 sym_name = bfd_section_name (input_bfd, sym_sec);
3848 howto = elf_hppa_howto_table + r_type;
3850 if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported)
3852 if (r == bfd_reloc_notsupported || !warned_undef)
3854 (*_bfd_error_handler)
3855 (_("%B(%A+0x%lx): cannot handle %s for %s"),
3858 (long) rel->r_offset,
3861 bfd_set_error (bfd_error_bad_value);
3867 if (!((*info->callbacks->reloc_overflow)
3868 (info, (h ? &h->elf.root : NULL), sym_name, howto->name,
3869 (bfd_vma) 0, input_bfd, input_section, rel->r_offset)))
3877 /* Finish up dynamic symbol handling. We set the contents of various
3878 dynamic sections here. */
3881 elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
3882 struct bfd_link_info *info,
3883 struct elf_link_hash_entry *h,
3884 Elf_Internal_Sym *sym)
3886 struct elf32_hppa_link_hash_table *htab;
3887 Elf_Internal_Rela rel;
3890 htab = hppa_link_hash_table (info);
3892 if (h->plt.offset != (bfd_vma) -1)
3896 if (h->plt.offset & 1)
3899 /* This symbol has an entry in the procedure linkage table. Set
3902 The format of a plt entry is
3907 if (h->root.type == bfd_link_hash_defined
3908 || h->root.type == bfd_link_hash_defweak)
3910 value = h->root.u.def.value;
3911 if (h->root.u.def.section->output_section != NULL)
3912 value += (h->root.u.def.section->output_offset
3913 + h->root.u.def.section->output_section->vma);
3916 /* Create a dynamic IPLT relocation for this entry. */
3917 rel.r_offset = (h->plt.offset
3918 + htab->splt->output_offset
3919 + htab->splt->output_section->vma);
3920 if (h->dynindx != -1)
3922 rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT);
3927 /* This symbol has been marked to become local, and is
3928 used by a plabel so must be kept in the .plt. */
3929 rel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3930 rel.r_addend = value;
3933 loc = htab->srelplt->contents;
3934 loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
3935 bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rel, loc);
3937 if (!h->def_regular)
3939 /* Mark the symbol as undefined, rather than as defined in
3940 the .plt section. Leave the value alone. */
3941 sym->st_shndx = SHN_UNDEF;
3945 if (h->got.offset != (bfd_vma) -1)
3947 /* This symbol has an entry in the global offset table. Set it
3950 rel.r_offset = ((h->got.offset &~ (bfd_vma) 1)
3951 + htab->sgot->output_offset
3952 + htab->sgot->output_section->vma);
3954 /* If this is a -Bsymbolic link and the symbol is defined
3955 locally or was forced to be local because of a version file,
3956 we just want to emit a RELATIVE reloc. The entry in the
3957 global offset table will already have been initialized in the
3958 relocate_section function. */
3960 && (info->symbolic || h->dynindx == -1)
3963 rel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3964 rel.r_addend = (h->root.u.def.value
3965 + h->root.u.def.section->output_offset
3966 + h->root.u.def.section->output_section->vma);
3970 if ((h->got.offset & 1) != 0)
3972 bfd_put_32 (output_bfd, 0, htab->sgot->contents + h->got.offset);
3973 rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32);
3977 loc = htab->srelgot->contents;
3978 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
3979 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
3986 /* This symbol needs a copy reloc. Set it up. */
3988 if (! (h->dynindx != -1
3989 && (h->root.type == bfd_link_hash_defined
3990 || h->root.type == bfd_link_hash_defweak)))
3995 rel.r_offset = (h->root.u.def.value
3996 + h->root.u.def.section->output_offset
3997 + h->root.u.def.section->output_section->vma);
3999 rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_COPY);
4000 loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela);
4001 bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
4004 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4005 if (h->root.root.string[0] == '_'
4006 && (strcmp (h->root.root.string, "_DYNAMIC") == 0
4007 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0))
4009 sym->st_shndx = SHN_ABS;
4015 /* Used to decide how to sort relocs in an optimal manner for the
4016 dynamic linker, before writing them out. */
4018 static enum elf_reloc_type_class
4019 elf32_hppa_reloc_type_class (const Elf_Internal_Rela *rela)
4021 if (ELF32_R_SYM (rela->r_info) == 0)
4022 return reloc_class_relative;
4024 switch ((int) ELF32_R_TYPE (rela->r_info))
4027 return reloc_class_plt;
4029 return reloc_class_copy;
4031 return reloc_class_normal;
4035 /* Finish up the dynamic sections. */
4038 elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4039 struct bfd_link_info *info)
4042 struct elf32_hppa_link_hash_table *htab;
4045 htab = hppa_link_hash_table (info);
4046 dynobj = htab->elf.dynobj;
4048 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4050 if (htab->elf.dynamic_sections_created)
4052 Elf32_External_Dyn *dyncon, *dynconend;
4057 dyncon = (Elf32_External_Dyn *) sdyn->contents;
4058 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4059 for (; dyncon < dynconend; dyncon++)
4061 Elf_Internal_Dyn dyn;
4064 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4072 /* Use PLTGOT to set the GOT register. */
4073 dyn.d_un.d_ptr = elf_gp (output_bfd);
4078 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4083 dyn.d_un.d_val = s->size;
4087 /* Don't count procedure linkage table relocs in the
4088 overall reloc count. */
4092 dyn.d_un.d_val -= s->size;
4096 /* We may not be using the standard ELF linker script.
4097 If .rela.plt is the first .rela section, we adjust
4098 DT_RELA to not include it. */
4102 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
4104 dyn.d_un.d_ptr += s->size;
4108 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4112 if (htab->sgot != NULL && htab->sgot->size != 0)
4114 /* Fill in the first entry in the global offset table.
4115 We use it to point to our dynamic section, if we have one. */
4116 bfd_put_32 (output_bfd,
4117 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
4118 htab->sgot->contents);
4120 /* The second entry is reserved for use by the dynamic linker. */
4121 memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
4123 /* Set .got entry size. */
4124 elf_section_data (htab->sgot->output_section)
4125 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
4128 if (htab->splt != NULL && htab->splt->size != 0)
4130 /* Set plt entry size. */
4131 elf_section_data (htab->splt->output_section)
4132 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
4134 if (htab->need_plt_stub)
4136 /* Set up the .plt stub. */
4137 memcpy (htab->splt->contents
4138 + htab->splt->size - sizeof (plt_stub),
4139 plt_stub, sizeof (plt_stub));
4141 if ((htab->splt->output_offset
4142 + htab->splt->output_section->vma
4144 != (htab->sgot->output_offset
4145 + htab->sgot->output_section->vma))
4147 (*_bfd_error_handler)
4148 (_(".got section not immediately after .plt section"));
4157 /* Tweak the OSABI field of the elf header. */
4160 elf32_hppa_post_process_headers (bfd *abfd,
4161 struct bfd_link_info *info ATTRIBUTE_UNUSED)
4163 Elf_Internal_Ehdr * i_ehdrp;
4165 i_ehdrp = elf_elfheader (abfd);
4167 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
4169 i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX;
4171 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
4173 i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_NETBSD;
4177 i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX;
4181 /* Called when writing out an object file to decide the type of a
4184 elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
4186 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4187 return STT_PARISC_MILLI;
4192 /* Misc BFD support code. */
4193 #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4194 #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4195 #define elf_info_to_howto elf_hppa_info_to_howto
4196 #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4198 /* Stuff for the BFD linker. */
4199 #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4200 #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4201 #define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free
4202 #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4203 #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4204 #define elf_backend_check_relocs elf32_hppa_check_relocs
4205 #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4206 #define elf_backend_fake_sections elf_hppa_fake_sections
4207 #define elf_backend_relocate_section elf32_hppa_relocate_section
4208 #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4209 #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4210 #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4211 #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4212 #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4213 #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
4214 #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4215 #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4216 #define elf_backend_object_p elf32_hppa_object_p
4217 #define elf_backend_final_write_processing elf_hppa_final_write_processing
4218 #define elf_backend_post_process_headers elf32_hppa_post_process_headers
4219 #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4220 #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4222 #define elf_backend_can_gc_sections 1
4223 #define elf_backend_can_refcount 1
4224 #define elf_backend_plt_alignment 2
4225 #define elf_backend_want_got_plt 0
4226 #define elf_backend_plt_readonly 0
4227 #define elf_backend_want_plt_sym 0
4228 #define elf_backend_got_header_size 8
4229 #define elf_backend_rela_normal 1
4231 #define TARGET_BIG_SYM bfd_elf32_hppa_vec
4232 #define TARGET_BIG_NAME "elf32-hppa"
4233 #define ELF_ARCH bfd_arch_hppa
4234 #define ELF_MACHINE_CODE EM_PARISC
4235 #define ELF_MAXPAGESIZE 0x1000
4237 #include "elf32-target.h"
4239 #undef TARGET_BIG_SYM
4240 #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec
4241 #undef TARGET_BIG_NAME
4242 #define TARGET_BIG_NAME "elf32-hppa-linux"
4244 #define INCLUDED_TARGET_FILE 1
4245 #include "elf32-target.h"
4247 #undef TARGET_BIG_SYM
4248 #define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec
4249 #undef TARGET_BIG_NAME
4250 #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4252 #include "elf32-target.h"