1 /* BFD back-end for HP PA-RISC ELF files.
2 Copyright (C) 1990-2020 Free Software Foundation, Inc.
5 Center for Software Science
6 Department of Computer Science
8 Largely rewritten by Alan Modra <alan@linuxcare.com.au>
9 Naming cleanup by Carlos O'Donell <carlos@systemhalted.org>
10 TLS support written by Randolph Chung <tausq@debian.org>
12 This file is part of BFD, the Binary File Descriptor library.
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 3 of the License, or
17 (at your option) any later version.
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
26 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
27 MA 02110-1301, USA. */
35 #include "elf32-hppa.h"
37 #include "elf32-hppa.h"
40 /* In order to gain some understanding of code in this file without
41 knowing all the intricate details of the linker, note the
44 Functions named elf32_hppa_* are called by external routines, other
45 functions are only called locally. elf32_hppa_* functions appear
46 in this file more or less in the order in which they are called
47 from external routines. eg. elf32_hppa_check_relocs is called
48 early in the link process, elf32_hppa_finish_dynamic_sections is
49 one of the last functions. */
51 /* We use two hash tables to hold information for linking PA ELF objects.
53 The first is the elf32_hppa_link_hash_table which is derived
54 from the standard ELF linker hash table. We use this as a place to
55 attach other hash tables and static information.
57 The second is the stub hash table which is derived from the
58 base BFD hash table. The stub hash table holds the information
59 necessary to build the linker stubs during a link.
61 There are a number of different stubs generated by the linker.
69 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
70 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
72 Import stub to call shared library routine from normal object file
73 (single sub-space version)
74 : addil LR'lt_ptr+ltoff,%dp ; get PLT address
75 : ldo RR'lt_ptr+ltoff(%r1),%r22 ;
76 : ldw 0(%r22),%r21 ; get procedure entry point
78 : ldw 4(%r22),%r19 ; get new dlt value.
80 Import stub to call shared library routine from shared library
81 (single sub-space version)
82 : addil LR'ltoff,%r19 ; get PLT address
83 : ldo RR'ltoff(%r1),%r22
84 : ldw 0(%r22),%r21 ; get procedure entry point
86 : ldw 4(%r22),%r19 ; get new dlt value.
88 Import stub to call shared library routine from normal object file
89 (multiple sub-space support)
90 : addil LR'lt_ptr+ltoff,%dp ; get PLT address
91 : ldo RR'lt_ptr+ltoff(%r1),%r22 ;
92 : ldw 0(%r22),%r21 ; get procedure entry point
93 : ldsid (%r21),%r1 ; get target sid
94 : ldw 4(%r22),%r19 ; get new dlt value.
96 : be 0(%sr0,%r21) ; branch to target
97 : stw %rp,-24(%sp) ; save rp
99 Import stub to call shared library routine from shared library
100 (multiple sub-space support)
101 : addil LR'ltoff,%r19 ; get PLT address
102 : ldo RR'ltoff(%r1),%r22
103 : ldw 0(%r22),%r21 ; get procedure entry point
104 : ldsid (%r21),%r1 ; get target sid
105 : ldw 4(%r22),%r19 ; get new dlt value.
107 : be 0(%sr0,%r21) ; branch to target
108 : stw %rp,-24(%sp) ; save rp
110 Export stub to return from shared lib routine (multiple sub-space support)
111 One of these is created for each exported procedure in a shared
112 library (and stored in the shared lib). Shared lib routines are
113 called via the first instruction in the export stub so that we can
114 do an inter-space return. Not required for single sub-space.
115 : bl,n X,%rp ; trap the return
117 : ldw -24(%sp),%rp ; restore the original rp
120 : be,n 0(%sr0,%rp) ; inter-space return. */
123 /* Variable names follow a coding style.
124 Please follow this (Apps Hungarian) style:
126 Structure/Variable Prefix
127 elf_link_hash_table "etab"
128 elf_link_hash_entry "eh"
130 elf32_hppa_link_hash_table "htab"
131 elf32_hppa_link_hash_entry "hh"
133 bfd_hash_table "btab"
136 bfd_hash_table containing stubs "bstab"
137 elf32_hppa_stub_hash_entry "hsh"
139 Always remember to use GNU Coding Style. */
141 #define PLT_ENTRY_SIZE 8
142 #define GOT_ENTRY_SIZE 4
143 #define LONG_BRANCH_STUB_SIZE 8
144 #define LONG_BRANCH_SHARED_STUB_SIZE 12
145 #define IMPORT_STUB_SIZE 20
146 #define IMPORT_SHARED_STUB_SIZE 32
147 #define EXPORT_STUB_SIZE 24
148 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
150 static const bfd_byte plt_stub
[] =
152 0x0e, 0x80, 0x10, 0x95, /* 1: ldw 0(%r20),%r21 */
153 0xea, 0xa0, 0xc0, 0x00, /* bv %r0(%r21) */
154 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
155 #define PLT_STUB_ENTRY (3*4)
156 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
157 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
158 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
159 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
162 /* Section name for stubs is the associated section name plus this
164 #define STUB_SUFFIX ".stub"
166 /* We don't need to copy certain PC- or GP-relative dynamic relocs
167 into a shared object's dynamic section. All the relocs of the
168 limited class we are interested in, are absolute. */
169 #ifndef RELATIVE_DYNRELOCS
170 #define RELATIVE_DYNRELOCS 0
171 #define IS_ABSOLUTE_RELOC(r_type) 1
172 #define pc_dynrelocs(hh) 0
175 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
176 copying dynamic variables from a shared lib into an app's dynbss
177 section, and instead use a dynamic relocation to point into the
179 #define ELIMINATE_COPY_RELOCS 1
181 enum elf32_hppa_stub_type
183 hppa_stub_long_branch
,
184 hppa_stub_long_branch_shared
,
186 hppa_stub_import_shared
,
191 struct elf32_hppa_stub_hash_entry
193 /* Base hash table entry structure. */
194 struct bfd_hash_entry bh_root
;
196 /* The stub section. */
199 /* Offset within stub_sec of the beginning of this stub. */
202 /* Given the symbol's value and its section we can determine its final
203 value when building the stubs (so the stub knows where to jump. */
204 bfd_vma target_value
;
205 asection
*target_section
;
207 enum elf32_hppa_stub_type stub_type
;
209 /* The symbol table entry, if any, that this was derived from. */
210 struct elf32_hppa_link_hash_entry
*hh
;
212 /* Where this stub is being called from, or, in the case of combined
213 stub sections, the first input section in the group. */
226 struct elf32_hppa_link_hash_entry
228 struct elf_link_hash_entry eh
;
230 /* A pointer to the most recently used stub hash entry against this
232 struct elf32_hppa_stub_hash_entry
*hsh_cache
;
234 /* Used to count relocations for delayed sizing of relocation
236 struct elf_dyn_relocs
*dyn_relocs
;
238 ENUM_BITFIELD (_tls_type
) tls_type
: 8;
240 /* Set if this symbol is used by a plabel reloc. */
241 unsigned int plabel
:1;
244 struct elf32_hppa_link_hash_table
246 /* The main hash table. */
247 struct elf_link_hash_table etab
;
249 /* The stub hash table. */
250 struct bfd_hash_table bstab
;
252 /* Linker stub bfd. */
255 /* Linker call-backs. */
256 asection
* (*add_stub_section
) (const char *, asection
*);
257 void (*layout_sections_again
) (void);
259 /* Array to keep track of which stub sections have been created, and
260 information on stub grouping. */
263 /* This is the section to which stubs in the group will be
266 /* The stub section. */
270 /* Assorted information used by elf32_hppa_size_stubs. */
271 unsigned int bfd_count
;
272 unsigned int top_index
;
273 asection
**input_list
;
274 Elf_Internal_Sym
**all_local_syms
;
276 /* Used during a final link to store the base of the text and data
277 segments so that we can perform SEGREL relocations. */
278 bfd_vma text_segment_base
;
279 bfd_vma data_segment_base
;
281 /* Whether we support multiple sub-spaces for shared libs. */
282 unsigned int multi_subspace
:1;
284 /* Flags set when various size branches are detected. Used to
285 select suitable defaults for the stub group size. */
286 unsigned int has_12bit_branch
:1;
287 unsigned int has_17bit_branch
:1;
288 unsigned int has_22bit_branch
:1;
290 /* Set if we need a .plt stub to support lazy dynamic linking. */
291 unsigned int need_plt_stub
:1;
293 /* Small local sym cache. */
294 struct sym_cache sym_cache
;
296 /* Data for LDM relocations. */
299 bfd_signed_vma refcount
;
304 /* Various hash macros and functions. */
305 #define hppa_link_hash_table(p) \
306 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
307 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
309 #define hppa_elf_hash_entry(ent) \
310 ((struct elf32_hppa_link_hash_entry *)(ent))
312 #define hppa_stub_hash_entry(ent) \
313 ((struct elf32_hppa_stub_hash_entry *)(ent))
315 #define hppa_stub_hash_lookup(table, string, create, copy) \
316 ((struct elf32_hppa_stub_hash_entry *) \
317 bfd_hash_lookup ((table), (string), (create), (copy)))
319 #define hppa_elf_local_got_tls_type(abfd) \
320 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
322 #define hh_name(hh) \
323 (hh ? hh->eh.root.root.string : "<undef>")
325 #define eh_name(eh) \
326 (eh ? eh->root.root.string : "<undef>")
328 /* Assorted hash table functions. */
330 /* Initialize an entry in the stub hash table. */
332 static struct bfd_hash_entry
*
333 stub_hash_newfunc (struct bfd_hash_entry
*entry
,
334 struct bfd_hash_table
*table
,
337 /* Allocate the structure if it has not already been allocated by a
341 entry
= bfd_hash_allocate (table
,
342 sizeof (struct elf32_hppa_stub_hash_entry
));
347 /* Call the allocation method of the superclass. */
348 entry
= bfd_hash_newfunc (entry
, table
, string
);
351 struct elf32_hppa_stub_hash_entry
*hsh
;
353 /* Initialize the local fields. */
354 hsh
= hppa_stub_hash_entry (entry
);
355 hsh
->stub_sec
= NULL
;
356 hsh
->stub_offset
= 0;
357 hsh
->target_value
= 0;
358 hsh
->target_section
= NULL
;
359 hsh
->stub_type
= hppa_stub_long_branch
;
367 /* Initialize an entry in the link hash table. */
369 static struct bfd_hash_entry
*
370 hppa_link_hash_newfunc (struct bfd_hash_entry
*entry
,
371 struct bfd_hash_table
*table
,
374 /* Allocate the structure if it has not already been allocated by a
378 entry
= bfd_hash_allocate (table
,
379 sizeof (struct elf32_hppa_link_hash_entry
));
384 /* Call the allocation method of the superclass. */
385 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
388 struct elf32_hppa_link_hash_entry
*hh
;
390 /* Initialize the local fields. */
391 hh
= hppa_elf_hash_entry (entry
);
392 hh
->hsh_cache
= NULL
;
393 hh
->dyn_relocs
= NULL
;
395 hh
->tls_type
= GOT_UNKNOWN
;
401 /* Free the derived linker hash table. */
404 elf32_hppa_link_hash_table_free (bfd
*obfd
)
406 struct elf32_hppa_link_hash_table
*htab
407 = (struct elf32_hppa_link_hash_table
*) obfd
->link
.hash
;
409 bfd_hash_table_free (&htab
->bstab
);
410 _bfd_elf_link_hash_table_free (obfd
);
413 /* Create the derived linker hash table. The PA ELF port uses the derived
414 hash table to keep information specific to the PA ELF linker (without
415 using static variables). */
417 static struct bfd_link_hash_table
*
418 elf32_hppa_link_hash_table_create (bfd
*abfd
)
420 struct elf32_hppa_link_hash_table
*htab
;
421 size_t amt
= sizeof (*htab
);
423 htab
= bfd_zmalloc (amt
);
427 if (!_bfd_elf_link_hash_table_init (&htab
->etab
, abfd
, hppa_link_hash_newfunc
,
428 sizeof (struct elf32_hppa_link_hash_entry
),
435 /* Init the stub hash table too. */
436 if (!bfd_hash_table_init (&htab
->bstab
, stub_hash_newfunc
,
437 sizeof (struct elf32_hppa_stub_hash_entry
)))
439 _bfd_elf_link_hash_table_free (abfd
);
442 htab
->etab
.root
.hash_table_free
= elf32_hppa_link_hash_table_free
;
444 htab
->text_segment_base
= (bfd_vma
) -1;
445 htab
->data_segment_base
= (bfd_vma
) -1;
446 return &htab
->etab
.root
;
449 /* Initialize the linker stubs BFD so that we can use it for linker
450 created dynamic sections. */
453 elf32_hppa_init_stub_bfd (bfd
*abfd
, struct bfd_link_info
*info
)
455 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
457 elf_elfheader (abfd
)->e_ident
[EI_CLASS
] = ELFCLASS32
;
458 htab
->etab
.dynobj
= abfd
;
461 /* Build a name for an entry in the stub hash table. */
464 hppa_stub_name (const asection
*input_section
,
465 const asection
*sym_sec
,
466 const struct elf32_hppa_link_hash_entry
*hh
,
467 const Elf_Internal_Rela
*rela
)
474 len
= 8 + 1 + strlen (hh_name (hh
)) + 1 + 8 + 1;
475 stub_name
= bfd_malloc (len
);
476 if (stub_name
!= NULL
)
477 sprintf (stub_name
, "%08x_%s+%x",
478 input_section
->id
& 0xffffffff,
480 (int) rela
->r_addend
& 0xffffffff);
484 len
= 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
485 stub_name
= bfd_malloc (len
);
486 if (stub_name
!= NULL
)
487 sprintf (stub_name
, "%08x_%x:%x+%x",
488 input_section
->id
& 0xffffffff,
489 sym_sec
->id
& 0xffffffff,
490 (int) ELF32_R_SYM (rela
->r_info
) & 0xffffffff,
491 (int) rela
->r_addend
& 0xffffffff);
496 /* Look up an entry in the stub hash. Stub entries are cached because
497 creating the stub name takes a bit of time. */
499 static struct elf32_hppa_stub_hash_entry
*
500 hppa_get_stub_entry (const asection
*input_section
,
501 const asection
*sym_sec
,
502 struct elf32_hppa_link_hash_entry
*hh
,
503 const Elf_Internal_Rela
*rela
,
504 struct elf32_hppa_link_hash_table
*htab
)
506 struct elf32_hppa_stub_hash_entry
*hsh_entry
;
507 const asection
*id_sec
;
509 /* If this input section is part of a group of sections sharing one
510 stub section, then use the id of the first section in the group.
511 Stub names need to include a section id, as there may well be
512 more than one stub used to reach say, printf, and we need to
513 distinguish between them. */
514 id_sec
= htab
->stub_group
[input_section
->id
].link_sec
;
518 if (hh
!= NULL
&& hh
->hsh_cache
!= NULL
519 && hh
->hsh_cache
->hh
== hh
520 && hh
->hsh_cache
->id_sec
== id_sec
)
522 hsh_entry
= hh
->hsh_cache
;
528 stub_name
= hppa_stub_name (id_sec
, sym_sec
, hh
, rela
);
529 if (stub_name
== NULL
)
532 hsh_entry
= hppa_stub_hash_lookup (&htab
->bstab
,
533 stub_name
, FALSE
, FALSE
);
535 hh
->hsh_cache
= hsh_entry
;
543 /* Add a new stub entry to the stub hash. Not all fields of the new
544 stub entry are initialised. */
546 static struct elf32_hppa_stub_hash_entry
*
547 hppa_add_stub (const char *stub_name
,
549 struct elf32_hppa_link_hash_table
*htab
)
553 struct elf32_hppa_stub_hash_entry
*hsh
;
555 link_sec
= htab
->stub_group
[section
->id
].link_sec
;
556 stub_sec
= htab
->stub_group
[section
->id
].stub_sec
;
557 if (stub_sec
== NULL
)
559 stub_sec
= htab
->stub_group
[link_sec
->id
].stub_sec
;
560 if (stub_sec
== NULL
)
566 namelen
= strlen (link_sec
->name
);
567 len
= namelen
+ sizeof (STUB_SUFFIX
);
568 s_name
= bfd_alloc (htab
->stub_bfd
, len
);
572 memcpy (s_name
, link_sec
->name
, namelen
);
573 memcpy (s_name
+ namelen
, STUB_SUFFIX
, sizeof (STUB_SUFFIX
));
574 stub_sec
= (*htab
->add_stub_section
) (s_name
, link_sec
);
575 if (stub_sec
== NULL
)
577 htab
->stub_group
[link_sec
->id
].stub_sec
= stub_sec
;
579 htab
->stub_group
[section
->id
].stub_sec
= stub_sec
;
582 /* Enter this entry into the linker stub hash table. */
583 hsh
= hppa_stub_hash_lookup (&htab
->bstab
, stub_name
,
587 /* xgettext:c-format */
588 _bfd_error_handler (_("%pB: cannot create stub entry %s"),
589 section
->owner
, stub_name
);
593 hsh
->stub_sec
= stub_sec
;
594 hsh
->stub_offset
= 0;
595 hsh
->id_sec
= link_sec
;
599 /* Determine the type of stub needed, if any, for a call. */
601 static enum elf32_hppa_stub_type
602 hppa_type_of_stub (asection
*input_sec
,
603 const Elf_Internal_Rela
*rela
,
604 struct elf32_hppa_link_hash_entry
*hh
,
606 struct bfd_link_info
*info
)
609 bfd_vma branch_offset
;
610 bfd_vma max_branch_offset
;
614 && hh
->eh
.plt
.offset
!= (bfd_vma
) -1
615 && hh
->eh
.dynindx
!= -1
617 && (bfd_link_pic (info
)
618 || !hh
->eh
.def_regular
619 || hh
->eh
.root
.type
== bfd_link_hash_defweak
))
621 /* We need an import stub. Decide between hppa_stub_import
622 and hppa_stub_import_shared later. */
623 return hppa_stub_import
;
626 if (destination
== (bfd_vma
) -1)
627 return hppa_stub_none
;
629 /* Determine where the call point is. */
630 location
= (input_sec
->output_offset
631 + input_sec
->output_section
->vma
634 branch_offset
= destination
- location
- 8;
635 r_type
= ELF32_R_TYPE (rela
->r_info
);
637 /* Determine if a long branch stub is needed. parisc branch offsets
638 are relative to the second instruction past the branch, ie. +8
639 bytes on from the branch instruction location. The offset is
640 signed and counts in units of 4 bytes. */
641 if (r_type
== (unsigned int) R_PARISC_PCREL17F
)
642 max_branch_offset
= (1 << (17 - 1)) << 2;
644 else if (r_type
== (unsigned int) R_PARISC_PCREL12F
)
645 max_branch_offset
= (1 << (12 - 1)) << 2;
647 else /* R_PARISC_PCREL22F. */
648 max_branch_offset
= (1 << (22 - 1)) << 2;
650 if (branch_offset
+ max_branch_offset
>= 2*max_branch_offset
)
651 return hppa_stub_long_branch
;
653 return hppa_stub_none
;
656 /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
657 IN_ARG contains the link info pointer. */
659 #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
660 #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
662 #define BL_R1 0xe8200000 /* b,l .+8,%r1 */
663 #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
664 #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
666 #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
667 #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
668 #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
669 #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
671 #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
672 #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
674 #define LDO_R1_R22 0x34360000 /* ldo RR'XXX(%r1),%r22 */
675 #define LDW_R22_R21 0x0ec01095 /* ldw 0(%r22),%r21 */
676 #define LDW_R22_R19 0x0ec81093 /* ldw 4(%r22),%r19 */
678 #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
679 #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
680 #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
681 #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
683 #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
684 #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
685 #define NOP 0x08000240 /* nop */
686 #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
687 #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
688 #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
695 #define LDW_R1_DLT LDW_R1_R19
697 #define LDW_R1_DLT LDW_R1_DP
701 hppa_build_one_stub (struct bfd_hash_entry
*bh
, void *in_arg
)
703 struct elf32_hppa_stub_hash_entry
*hsh
;
704 struct bfd_link_info
*info
;
705 struct elf32_hppa_link_hash_table
*htab
;
715 /* Massage our args to the form they really have. */
716 hsh
= hppa_stub_hash_entry (bh
);
717 info
= (struct bfd_link_info
*)in_arg
;
719 htab
= hppa_link_hash_table (info
);
723 stub_sec
= hsh
->stub_sec
;
725 /* Make a note of the offset within the stubs for this entry. */
726 hsh
->stub_offset
= stub_sec
->size
;
727 loc
= stub_sec
->contents
+ hsh
->stub_offset
;
729 stub_bfd
= stub_sec
->owner
;
731 switch (hsh
->stub_type
)
733 case hppa_stub_long_branch
:
734 /* Fail if the target section could not be assigned to an output
735 section. The user should fix his linker script. */
736 if (hsh
->target_section
->output_section
== NULL
737 && info
->non_contiguous_regions
)
739 _bfd_error_handler (_("Could not assign '%pA' to an output section. "
740 "Retry without --enable-non-contiguous-regions.\n"),
741 hsh
->target_section
);
745 /* Create the long branch. A long branch is formed with "ldil"
746 loading the upper bits of the target address into a register,
747 then branching with "be" which adds in the lower bits.
748 The "be" has its delay slot nullified. */
749 sym_value
= (hsh
->target_value
750 + hsh
->target_section
->output_offset
751 + hsh
->target_section
->output_section
->vma
);
753 val
= hppa_field_adjust (sym_value
, 0, e_lrsel
);
754 insn
= hppa_rebuild_insn ((int) LDIL_R1
, val
, 21);
755 bfd_put_32 (stub_bfd
, insn
, loc
);
757 val
= hppa_field_adjust (sym_value
, 0, e_rrsel
) >> 2;
758 insn
= hppa_rebuild_insn ((int) BE_SR4_R1
, val
, 17);
759 bfd_put_32 (stub_bfd
, insn
, loc
+ 4);
761 size
= LONG_BRANCH_STUB_SIZE
;
764 case hppa_stub_long_branch_shared
:
765 /* Fail if the target section could not be assigned to an output
766 section. The user should fix his linker script. */
767 if (hsh
->target_section
->output_section
== NULL
768 && info
->non_contiguous_regions
)
770 _bfd_error_handler (_("Could not assign %pA to an output section. "
771 "Retry without --enable-non-contiguous-regions.\n"),
772 hsh
->target_section
);
775 /* Branches are relative. This is where we are going to. */
776 sym_value
= (hsh
->target_value
777 + hsh
->target_section
->output_offset
778 + hsh
->target_section
->output_section
->vma
);
780 /* And this is where we are coming from, more or less. */
781 sym_value
-= (hsh
->stub_offset
782 + stub_sec
->output_offset
783 + stub_sec
->output_section
->vma
);
785 bfd_put_32 (stub_bfd
, (bfd_vma
) BL_R1
, loc
);
786 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) -8, e_lrsel
);
787 insn
= hppa_rebuild_insn ((int) ADDIL_R1
, val
, 21);
788 bfd_put_32 (stub_bfd
, insn
, loc
+ 4);
790 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) -8, e_rrsel
) >> 2;
791 insn
= hppa_rebuild_insn ((int) BE_SR4_R1
, val
, 17);
792 bfd_put_32 (stub_bfd
, insn
, loc
+ 8);
793 size
= LONG_BRANCH_SHARED_STUB_SIZE
;
796 case hppa_stub_import
:
797 case hppa_stub_import_shared
:
798 off
= hsh
->hh
->eh
.plt
.offset
;
799 if (off
>= (bfd_vma
) -2)
802 off
&= ~ (bfd_vma
) 1;
804 + htab
->etab
.splt
->output_offset
805 + htab
->etab
.splt
->output_section
->vma
806 - elf_gp (htab
->etab
.splt
->output_section
->owner
));
810 if (hsh
->stub_type
== hppa_stub_import_shared
)
814 /* Load function descriptor address into register %r22. It is
815 sometimes needed for lazy binding. */
816 val
= hppa_field_adjust (sym_value
, 0, e_lrsel
),
817 insn
= hppa_rebuild_insn ((int) insn
, val
, 21);
818 bfd_put_32 (stub_bfd
, insn
, loc
);
820 val
= hppa_field_adjust (sym_value
, 0, e_rrsel
);
821 insn
= hppa_rebuild_insn ((int) LDO_R1_R22
, val
, 14);
822 bfd_put_32 (stub_bfd
, insn
, loc
+ 4);
824 bfd_put_32 (stub_bfd
, (bfd_vma
) LDW_R22_R21
, loc
+ 8);
826 if (htab
->multi_subspace
)
828 bfd_put_32 (stub_bfd
, (bfd_vma
) LDSID_R21_R1
, loc
+ 12);
829 bfd_put_32 (stub_bfd
, (bfd_vma
) LDW_R22_R19
, loc
+ 16);
830 bfd_put_32 (stub_bfd
, (bfd_vma
) MTSP_R1
, loc
+ 20);
831 bfd_put_32 (stub_bfd
, (bfd_vma
) BE_SR0_R21
, loc
+ 24);
832 bfd_put_32 (stub_bfd
, (bfd_vma
) STW_RP
, loc
+ 28);
834 size
= IMPORT_SHARED_STUB_SIZE
;
838 bfd_put_32 (stub_bfd
, (bfd_vma
) BV_R0_R21
, loc
+ 12);
839 bfd_put_32 (stub_bfd
, (bfd_vma
) LDW_R22_R19
, loc
+ 16);
841 size
= IMPORT_STUB_SIZE
;
846 case hppa_stub_export
:
847 /* Fail if the target section could not be assigned to an output
848 section. The user should fix his linker script. */
849 if (hsh
->target_section
->output_section
== NULL
850 && info
->non_contiguous_regions
)
852 _bfd_error_handler (_("Could not assign %pA to an output section. "
853 "Retry without --enable-non-contiguous-regions.\n"),
854 hsh
->target_section
);
857 /* Branches are relative. This is where we are going to. */
858 sym_value
= (hsh
->target_value
859 + hsh
->target_section
->output_offset
860 + hsh
->target_section
->output_section
->vma
);
862 /* And this is where we are coming from. */
863 sym_value
-= (hsh
->stub_offset
864 + stub_sec
->output_offset
865 + stub_sec
->output_section
->vma
);
867 if (sym_value
- 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
868 && (!htab
->has_22bit_branch
869 || sym_value
- 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
872 /* xgettext:c-format */
873 (_("%pB(%pA+%#" PRIx64
"): "
874 "cannot reach %s, recompile with -ffunction-sections"),
875 hsh
->target_section
->owner
,
877 (uint64_t) hsh
->stub_offset
,
878 hsh
->bh_root
.string
);
879 bfd_set_error (bfd_error_bad_value
);
883 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) -8, e_fsel
) >> 2;
884 if (!htab
->has_22bit_branch
)
885 insn
= hppa_rebuild_insn ((int) BL_RP
, val
, 17);
887 insn
= hppa_rebuild_insn ((int) BL22_RP
, val
, 22);
888 bfd_put_32 (stub_bfd
, insn
, loc
);
890 bfd_put_32 (stub_bfd
, (bfd_vma
) NOP
, loc
+ 4);
891 bfd_put_32 (stub_bfd
, (bfd_vma
) LDW_RP
, loc
+ 8);
892 bfd_put_32 (stub_bfd
, (bfd_vma
) LDSID_RP_R1
, loc
+ 12);
893 bfd_put_32 (stub_bfd
, (bfd_vma
) MTSP_R1
, loc
+ 16);
894 bfd_put_32 (stub_bfd
, (bfd_vma
) BE_SR0_RP
, loc
+ 20);
896 /* Point the function symbol at the stub. */
897 hsh
->hh
->eh
.root
.u
.def
.section
= stub_sec
;
898 hsh
->hh
->eh
.root
.u
.def
.value
= stub_sec
->size
;
900 size
= EXPORT_STUB_SIZE
;
908 stub_sec
->size
+= size
;
933 /* As above, but don't actually build the stub. Just bump offset so
934 we know stub section sizes. */
937 hppa_size_one_stub (struct bfd_hash_entry
*bh
, void *in_arg
)
939 struct elf32_hppa_stub_hash_entry
*hsh
;
940 struct elf32_hppa_link_hash_table
*htab
;
943 /* Massage our args to the form they really have. */
944 hsh
= hppa_stub_hash_entry (bh
);
947 if (hsh
->stub_type
== hppa_stub_long_branch
)
948 size
= LONG_BRANCH_STUB_SIZE
;
949 else if (hsh
->stub_type
== hppa_stub_long_branch_shared
)
950 size
= LONG_BRANCH_SHARED_STUB_SIZE
;
951 else if (hsh
->stub_type
== hppa_stub_export
)
952 size
= EXPORT_STUB_SIZE
;
953 else /* hppa_stub_import or hppa_stub_import_shared. */
955 if (htab
->multi_subspace
)
956 size
= IMPORT_SHARED_STUB_SIZE
;
958 size
= IMPORT_STUB_SIZE
;
961 hsh
->stub_sec
->size
+= size
;
965 /* Return nonzero if ABFD represents an HPPA ELF32 file.
966 Additionally we set the default architecture and machine. */
969 elf32_hppa_object_p (bfd
*abfd
)
971 Elf_Internal_Ehdr
* i_ehdrp
;
974 i_ehdrp
= elf_elfheader (abfd
);
975 if (strcmp (bfd_get_target (abfd
), "elf32-hppa-linux") == 0)
977 /* GCC on hppa-linux produces binaries with OSABI=GNU,
978 but the kernel produces corefiles with OSABI=SysV. */
979 if (i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_GNU
&&
980 i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_NONE
) /* aka SYSV */
983 else if (strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") == 0)
985 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
986 but the kernel produces corefiles with OSABI=SysV. */
987 if (i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_NETBSD
&&
988 i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_NONE
) /* aka SYSV */
993 if (i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_HPUX
)
997 flags
= i_ehdrp
->e_flags
;
998 switch (flags
& (EF_PARISC_ARCH
| EF_PARISC_WIDE
))
1000 case EFA_PARISC_1_0
:
1001 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 10);
1002 case EFA_PARISC_1_1
:
1003 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 11);
1004 case EFA_PARISC_2_0
:
1005 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 20);
1006 case EFA_PARISC_2_0
| EF_PARISC_WIDE
:
1007 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 25);
1012 /* Create the .plt and .got sections, and set up our hash table
1013 short-cuts to various dynamic sections. */
1016 elf32_hppa_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
1018 struct elf32_hppa_link_hash_table
*htab
;
1019 struct elf_link_hash_entry
*eh
;
1021 /* Don't try to create the .plt and .got twice. */
1022 htab
= hppa_link_hash_table (info
);
1025 if (htab
->etab
.splt
!= NULL
)
1028 /* Call the generic code to do most of the work. */
1029 if (! _bfd_elf_create_dynamic_sections (abfd
, info
))
1032 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
1033 application, because __canonicalize_funcptr_for_compare needs it. */
1034 eh
= elf_hash_table (info
)->hgot
;
1035 eh
->forced_local
= 0;
1036 eh
->other
= STV_DEFAULT
;
1037 return bfd_elf_link_record_dynamic_symbol (info
, eh
);
1040 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1043 elf32_hppa_copy_indirect_symbol (struct bfd_link_info
*info
,
1044 struct elf_link_hash_entry
*eh_dir
,
1045 struct elf_link_hash_entry
*eh_ind
)
1047 struct elf32_hppa_link_hash_entry
*hh_dir
, *hh_ind
;
1049 hh_dir
= hppa_elf_hash_entry (eh_dir
);
1050 hh_ind
= hppa_elf_hash_entry (eh_ind
);
1052 if (hh_ind
->dyn_relocs
!= NULL
1053 && eh_ind
->root
.type
== bfd_link_hash_indirect
)
1055 if (hh_dir
->dyn_relocs
!= NULL
)
1057 struct elf_dyn_relocs
**hdh_pp
;
1058 struct elf_dyn_relocs
*hdh_p
;
1060 /* Add reloc counts against the indirect sym to the direct sym
1061 list. Merge any entries against the same section. */
1062 for (hdh_pp
= &hh_ind
->dyn_relocs
; (hdh_p
= *hdh_pp
) != NULL
; )
1064 struct elf_dyn_relocs
*hdh_q
;
1066 for (hdh_q
= hh_dir
->dyn_relocs
;
1068 hdh_q
= hdh_q
->next
)
1069 if (hdh_q
->sec
== hdh_p
->sec
)
1071 #if RELATIVE_DYNRELOCS
1072 hdh_q
->pc_count
+= hdh_p
->pc_count
;
1074 hdh_q
->count
+= hdh_p
->count
;
1075 *hdh_pp
= hdh_p
->next
;
1079 hdh_pp
= &hdh_p
->next
;
1081 *hdh_pp
= hh_dir
->dyn_relocs
;
1084 hh_dir
->dyn_relocs
= hh_ind
->dyn_relocs
;
1085 hh_ind
->dyn_relocs
= NULL
;
1088 if (eh_ind
->root
.type
== bfd_link_hash_indirect
)
1090 hh_dir
->plabel
|= hh_ind
->plabel
;
1091 hh_dir
->tls_type
|= hh_ind
->tls_type
;
1092 hh_ind
->tls_type
= GOT_UNKNOWN
;
1095 _bfd_elf_link_hash_copy_indirect (info
, eh_dir
, eh_ind
);
1099 elf32_hppa_optimized_tls_reloc (struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
1100 int r_type
, int is_local ATTRIBUTE_UNUSED
)
1102 /* For now we don't support linker optimizations. */
1106 /* Return a pointer to the local GOT, PLT and TLS reference counts
1107 for ABFD. Returns NULL if the storage allocation fails. */
1109 static bfd_signed_vma
*
1110 hppa32_elf_local_refcounts (bfd
*abfd
)
1112 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1113 bfd_signed_vma
*local_refcounts
;
1115 local_refcounts
= elf_local_got_refcounts (abfd
);
1116 if (local_refcounts
== NULL
)
1120 /* Allocate space for local GOT and PLT reference
1121 counts. Done this way to save polluting elf_obj_tdata
1122 with another target specific pointer. */
1123 size
= symtab_hdr
->sh_info
;
1124 size
*= 2 * sizeof (bfd_signed_vma
);
1125 /* Add in space to store the local GOT TLS types. */
1126 size
+= symtab_hdr
->sh_info
;
1127 local_refcounts
= bfd_zalloc (abfd
, size
);
1128 if (local_refcounts
== NULL
)
1130 elf_local_got_refcounts (abfd
) = local_refcounts
;
1131 memset (hppa_elf_local_got_tls_type (abfd
), GOT_UNKNOWN
,
1132 symtab_hdr
->sh_info
);
1134 return local_refcounts
;
1138 /* Look through the relocs for a section during the first phase, and
1139 calculate needed space in the global offset table, procedure linkage
1140 table, and dynamic reloc sections. At this point we haven't
1141 necessarily read all the input files. */
1144 elf32_hppa_check_relocs (bfd
*abfd
,
1145 struct bfd_link_info
*info
,
1147 const Elf_Internal_Rela
*relocs
)
1149 Elf_Internal_Shdr
*symtab_hdr
;
1150 struct elf_link_hash_entry
**eh_syms
;
1151 const Elf_Internal_Rela
*rela
;
1152 const Elf_Internal_Rela
*rela_end
;
1153 struct elf32_hppa_link_hash_table
*htab
;
1156 if (bfd_link_relocatable (info
))
1159 htab
= hppa_link_hash_table (info
);
1162 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1163 eh_syms
= elf_sym_hashes (abfd
);
1166 rela_end
= relocs
+ sec
->reloc_count
;
1167 for (rela
= relocs
; rela
< rela_end
; rela
++)
1176 unsigned int r_symndx
, r_type
;
1177 struct elf32_hppa_link_hash_entry
*hh
;
1180 r_symndx
= ELF32_R_SYM (rela
->r_info
);
1182 if (r_symndx
< symtab_hdr
->sh_info
)
1186 hh
= hppa_elf_hash_entry (eh_syms
[r_symndx
- symtab_hdr
->sh_info
]);
1187 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
1188 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
1189 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
1192 r_type
= ELF32_R_TYPE (rela
->r_info
);
1193 r_type
= elf32_hppa_optimized_tls_reloc (info
, r_type
, hh
== NULL
);
1197 case R_PARISC_DLTIND14F
:
1198 case R_PARISC_DLTIND14R
:
1199 case R_PARISC_DLTIND21L
:
1200 /* This symbol requires a global offset table entry. */
1201 need_entry
= NEED_GOT
;
1204 case R_PARISC_PLABEL14R
: /* "Official" procedure labels. */
1205 case R_PARISC_PLABEL21L
:
1206 case R_PARISC_PLABEL32
:
1207 /* If the addend is non-zero, we break badly. */
1208 if (rela
->r_addend
!= 0)
1211 /* If we are creating a shared library, then we need to
1212 create a PLT entry for all PLABELs, because PLABELs with
1213 local symbols may be passed via a pointer to another
1214 object. Additionally, output a dynamic relocation
1215 pointing to the PLT entry.
1217 For executables, the original 32-bit ABI allowed two
1218 different styles of PLABELs (function pointers): For
1219 global functions, the PLABEL word points into the .plt
1220 two bytes past a (function address, gp) pair, and for
1221 local functions the PLABEL points directly at the
1222 function. The magic +2 for the first type allows us to
1223 differentiate between the two. As you can imagine, this
1224 is a real pain when it comes to generating code to call
1225 functions indirectly or to compare function pointers.
1226 We avoid the mess by always pointing a PLABEL into the
1227 .plt, even for local functions. */
1228 need_entry
= PLT_PLABEL
| NEED_PLT
;
1229 if (bfd_link_pic (info
))
1230 need_entry
|= NEED_DYNREL
;
1233 case R_PARISC_PCREL12F
:
1234 htab
->has_12bit_branch
= 1;
1237 case R_PARISC_PCREL17C
:
1238 case R_PARISC_PCREL17F
:
1239 htab
->has_17bit_branch
= 1;
1242 case R_PARISC_PCREL22F
:
1243 htab
->has_22bit_branch
= 1;
1245 /* Function calls might need to go through the .plt, and
1246 might require long branch stubs. */
1249 /* We know local syms won't need a .plt entry, and if
1250 they need a long branch stub we can't guarantee that
1251 we can reach the stub. So just flag an error later
1252 if we're doing a shared link and find we need a long
1258 /* Global symbols will need a .plt entry if they remain
1259 global, and in most cases won't need a long branch
1260 stub. Unfortunately, we have to cater for the case
1261 where a symbol is forced local by versioning, or due
1262 to symbolic linking, and we lose the .plt entry. */
1263 need_entry
= NEED_PLT
;
1264 if (hh
->eh
.type
== STT_PARISC_MILLI
)
1269 case R_PARISC_SEGBASE
: /* Used to set segment base. */
1270 case R_PARISC_SEGREL32
: /* Relative reloc, used for unwind. */
1271 case R_PARISC_PCREL14F
: /* PC relative load/store. */
1272 case R_PARISC_PCREL14R
:
1273 case R_PARISC_PCREL17R
: /* External branches. */
1274 case R_PARISC_PCREL21L
: /* As above, and for load/store too. */
1275 case R_PARISC_PCREL32
:
1276 /* We don't need to propagate the relocation if linking a
1277 shared object since these are section relative. */
1280 case R_PARISC_DPREL14F
: /* Used for gp rel data load/store. */
1281 case R_PARISC_DPREL14R
:
1282 case R_PARISC_DPREL21L
:
1283 if (bfd_link_pic (info
))
1286 /* xgettext:c-format */
1287 (_("%pB: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1289 elf_hppa_howto_table
[r_type
].name
);
1290 bfd_set_error (bfd_error_bad_value
);
1295 case R_PARISC_DIR17F
: /* Used for external branches. */
1296 case R_PARISC_DIR17R
:
1297 case R_PARISC_DIR14F
: /* Used for load/store from absolute locn. */
1298 case R_PARISC_DIR14R
:
1299 case R_PARISC_DIR21L
: /* As above, and for ext branches too. */
1300 case R_PARISC_DIR32
: /* .word relocs. */
1301 /* We may want to output a dynamic relocation later. */
1302 need_entry
= NEED_DYNREL
;
1305 /* This relocation describes the C++ object vtable hierarchy.
1306 Reconstruct it for later use during GC. */
1307 case R_PARISC_GNU_VTINHERIT
:
1308 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, &hh
->eh
, rela
->r_offset
))
1312 /* This relocation describes which C++ vtable entries are actually
1313 used. Record for later use during GC. */
1314 case R_PARISC_GNU_VTENTRY
:
1315 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, &hh
->eh
, rela
->r_addend
))
1319 case R_PARISC_TLS_GD21L
:
1320 case R_PARISC_TLS_GD14R
:
1321 case R_PARISC_TLS_LDM21L
:
1322 case R_PARISC_TLS_LDM14R
:
1323 need_entry
= NEED_GOT
;
1326 case R_PARISC_TLS_IE21L
:
1327 case R_PARISC_TLS_IE14R
:
1328 if (bfd_link_dll (info
))
1329 info
->flags
|= DF_STATIC_TLS
;
1330 need_entry
= NEED_GOT
;
1337 /* Now carry out our orders. */
1338 if (need_entry
& NEED_GOT
)
1340 int tls_type
= GOT_NORMAL
;
1346 case R_PARISC_TLS_GD21L
:
1347 case R_PARISC_TLS_GD14R
:
1348 tls_type
= GOT_TLS_GD
;
1350 case R_PARISC_TLS_LDM21L
:
1351 case R_PARISC_TLS_LDM14R
:
1352 tls_type
= GOT_TLS_LDM
;
1354 case R_PARISC_TLS_IE21L
:
1355 case R_PARISC_TLS_IE14R
:
1356 tls_type
= GOT_TLS_IE
;
1360 /* Allocate space for a GOT entry, as well as a dynamic
1361 relocation for this entry. */
1362 if (htab
->etab
.sgot
== NULL
)
1364 if (!elf32_hppa_create_dynamic_sections (htab
->etab
.dynobj
, info
))
1370 if (tls_type
== GOT_TLS_LDM
)
1371 htab
->tls_ldm_got
.refcount
+= 1;
1373 hh
->eh
.got
.refcount
+= 1;
1374 hh
->tls_type
|= tls_type
;
1378 bfd_signed_vma
*local_got_refcounts
;
1380 /* This is a global offset table entry for a local symbol. */
1381 local_got_refcounts
= hppa32_elf_local_refcounts (abfd
);
1382 if (local_got_refcounts
== NULL
)
1384 if (tls_type
== GOT_TLS_LDM
)
1385 htab
->tls_ldm_got
.refcount
+= 1;
1387 local_got_refcounts
[r_symndx
] += 1;
1389 hppa_elf_local_got_tls_type (abfd
) [r_symndx
] |= tls_type
;
1393 if (need_entry
& NEED_PLT
)
1395 /* If we are creating a shared library, and this is a reloc
1396 against a weak symbol or a global symbol in a dynamic
1397 object, then we will be creating an import stub and a
1398 .plt entry for the symbol. Similarly, on a normal link
1399 to symbols defined in a dynamic object we'll need the
1400 import stub and a .plt entry. We don't know yet whether
1401 the symbol is defined or not, so make an entry anyway and
1402 clean up later in adjust_dynamic_symbol. */
1403 if ((sec
->flags
& SEC_ALLOC
) != 0)
1407 hh
->eh
.needs_plt
= 1;
1408 hh
->eh
.plt
.refcount
+= 1;
1410 /* If this .plt entry is for a plabel, mark it so
1411 that adjust_dynamic_symbol will keep the entry
1412 even if it appears to be local. */
1413 if (need_entry
& PLT_PLABEL
)
1416 else if (need_entry
& PLT_PLABEL
)
1418 bfd_signed_vma
*local_got_refcounts
;
1419 bfd_signed_vma
*local_plt_refcounts
;
1421 local_got_refcounts
= hppa32_elf_local_refcounts (abfd
);
1422 if (local_got_refcounts
== NULL
)
1424 local_plt_refcounts
= (local_got_refcounts
1425 + symtab_hdr
->sh_info
);
1426 local_plt_refcounts
[r_symndx
] += 1;
1431 if ((need_entry
& NEED_DYNREL
) != 0
1432 && (sec
->flags
& SEC_ALLOC
) != 0)
1434 /* Flag this symbol as having a non-got, non-plt reference
1435 so that we generate copy relocs if it turns out to be
1438 hh
->eh
.non_got_ref
= 1;
1440 /* If we are creating a shared library then we need to copy
1441 the reloc into the shared library. However, if we are
1442 linking with -Bsymbolic, we need only copy absolute
1443 relocs or relocs against symbols that are not defined in
1444 an object we are including in the link. PC- or DP- or
1445 DLT-relative relocs against any local sym or global sym
1446 with DEF_REGULAR set, can be discarded. At this point we
1447 have not seen all the input files, so it is possible that
1448 DEF_REGULAR is not set now but will be set later (it is
1449 never cleared). We account for that possibility below by
1450 storing information in the dyn_relocs field of the
1453 A similar situation to the -Bsymbolic case occurs when
1454 creating shared libraries and symbol visibility changes
1455 render the symbol local.
1457 As it turns out, all the relocs we will be creating here
1458 are absolute, so we cannot remove them on -Bsymbolic
1459 links or visibility changes anyway. A STUB_REL reloc
1460 is absolute too, as in that case it is the reloc in the
1461 stub we will be creating, rather than copying the PCREL
1462 reloc in the branch.
1464 If on the other hand, we are creating an executable, we
1465 may need to keep relocations for symbols satisfied by a
1466 dynamic library if we manage to avoid copy relocs for the
1468 if ((bfd_link_pic (info
)
1469 && (IS_ABSOLUTE_RELOC (r_type
)
1471 && (!SYMBOLIC_BIND (info
, &hh
->eh
)
1472 || hh
->eh
.root
.type
== bfd_link_hash_defweak
1473 || !hh
->eh
.def_regular
))))
1474 || (ELIMINATE_COPY_RELOCS
1475 && !bfd_link_pic (info
)
1477 && (hh
->eh
.root
.type
== bfd_link_hash_defweak
1478 || !hh
->eh
.def_regular
)))
1480 struct elf_dyn_relocs
*hdh_p
;
1481 struct elf_dyn_relocs
**hdh_head
;
1483 /* Create a reloc section in dynobj and make room for
1487 sreloc
= _bfd_elf_make_dynamic_reloc_section
1488 (sec
, htab
->etab
.dynobj
, 2, abfd
, /*rela?*/ TRUE
);
1492 bfd_set_error (bfd_error_bad_value
);
1497 /* If this is a global symbol, we count the number of
1498 relocations we need for this symbol. */
1501 hdh_head
= &hh
->dyn_relocs
;
1505 /* Track dynamic relocs needed for local syms too.
1506 We really need local syms available to do this
1510 Elf_Internal_Sym
*isym
;
1512 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
1517 sr
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
1521 vpp
= &elf_section_data (sr
)->local_dynrel
;
1522 hdh_head
= (struct elf_dyn_relocs
**) vpp
;
1526 if (hdh_p
== NULL
|| hdh_p
->sec
!= sec
)
1528 hdh_p
= bfd_alloc (htab
->etab
.dynobj
, sizeof *hdh_p
);
1531 hdh_p
->next
= *hdh_head
;
1535 #if RELATIVE_DYNRELOCS
1536 hdh_p
->pc_count
= 0;
1541 #if RELATIVE_DYNRELOCS
1542 if (!IS_ABSOLUTE_RELOC (rtype
))
1543 hdh_p
->pc_count
+= 1;
1552 /* Return the section that should be marked against garbage collection
1553 for a given relocation. */
1556 elf32_hppa_gc_mark_hook (asection
*sec
,
1557 struct bfd_link_info
*info
,
1558 Elf_Internal_Rela
*rela
,
1559 struct elf_link_hash_entry
*hh
,
1560 Elf_Internal_Sym
*sym
)
1563 switch ((unsigned int) ELF32_R_TYPE (rela
->r_info
))
1565 case R_PARISC_GNU_VTINHERIT
:
1566 case R_PARISC_GNU_VTENTRY
:
1570 return _bfd_elf_gc_mark_hook (sec
, info
, rela
, hh
, sym
);
1573 /* Support for core dump NOTE sections. */
1576 elf32_hppa_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
1581 switch (note
->descsz
)
1586 case 396: /* Linux/hppa */
1588 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
1591 elf_tdata (abfd
)->core
->lwpid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
1600 /* Make a ".reg/999" section. */
1601 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
1602 size
, note
->descpos
+ offset
);
1606 elf32_hppa_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
1608 switch (note
->descsz
)
1613 case 124: /* Linux/hppa elf_prpsinfo. */
1614 elf_tdata (abfd
)->core
->program
1615 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
1616 elf_tdata (abfd
)->core
->command
1617 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
1620 /* Note that for some reason, a spurious space is tacked
1621 onto the end of the args in some (at least one anyway)
1622 implementations, so strip it off if it exists. */
1624 char *command
= elf_tdata (abfd
)->core
->command
;
1625 int n
= strlen (command
);
1627 if (0 < n
&& command
[n
- 1] == ' ')
1628 command
[n
- 1] = '\0';
1634 /* Our own version of hide_symbol, so that we can keep plt entries for
1638 elf32_hppa_hide_symbol (struct bfd_link_info
*info
,
1639 struct elf_link_hash_entry
*eh
,
1640 bfd_boolean force_local
)
1644 eh
->forced_local
= 1;
1645 if (eh
->dynindx
!= -1)
1648 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
1652 /* PR 16082: Remove version information from hidden symbol. */
1653 eh
->verinfo
.verdef
= NULL
;
1654 eh
->verinfo
.vertree
= NULL
;
1657 /* STT_GNU_IFUNC symbol must go through PLT. */
1658 if (! hppa_elf_hash_entry (eh
)->plabel
1659 && eh
->type
!= STT_GNU_IFUNC
)
1662 eh
->plt
= elf_hash_table (info
)->init_plt_offset
;
1666 /* Find any dynamic relocs that apply to read-only sections. */
1669 readonly_dynrelocs (struct elf_link_hash_entry
*eh
)
1671 struct elf32_hppa_link_hash_entry
*hh
;
1672 struct elf_dyn_relocs
*hdh_p
;
1674 hh
= hppa_elf_hash_entry (eh
);
1675 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->next
)
1677 asection
*sec
= hdh_p
->sec
->output_section
;
1679 if (sec
!= NULL
&& (sec
->flags
& SEC_READONLY
) != 0)
1685 /* Return true if we have dynamic relocs against H or any of its weak
1686 aliases, that apply to read-only sections. Cannot be used after
1687 size_dynamic_sections. */
1690 alias_readonly_dynrelocs (struct elf_link_hash_entry
*eh
)
1692 struct elf32_hppa_link_hash_entry
*hh
= hppa_elf_hash_entry (eh
);
1695 if (readonly_dynrelocs (&hh
->eh
))
1697 hh
= hppa_elf_hash_entry (hh
->eh
.u
.alias
);
1698 } while (hh
!= NULL
&& &hh
->eh
!= eh
);
1703 /* Adjust a symbol defined by a dynamic object and referenced by a
1704 regular object. The current definition is in some section of the
1705 dynamic object, but we're not including those sections. We have to
1706 change the definition to something the rest of the link can
1710 elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info
*info
,
1711 struct elf_link_hash_entry
*eh
)
1713 struct elf32_hppa_link_hash_table
*htab
;
1714 asection
*sec
, *srel
;
1716 /* If this is a function, put it in the procedure linkage table. We
1717 will fill in the contents of the procedure linkage table later. */
1718 if (eh
->type
== STT_FUNC
1721 bfd_boolean local
= (SYMBOL_CALLS_LOCAL (info
, eh
)
1722 || UNDEFWEAK_NO_DYNAMIC_RELOC (info
, eh
));
1723 /* Discard dyn_relocs when non-pic if we've decided that a
1724 function symbol is local. */
1725 if (!bfd_link_pic (info
) && local
)
1726 hppa_elf_hash_entry (eh
)->dyn_relocs
= NULL
;
1728 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1729 The refcounts are not reliable when it has been hidden since
1730 hide_symbol can be called before the plabel flag is set. */
1731 if (hppa_elf_hash_entry (eh
)->plabel
)
1732 eh
->plt
.refcount
= 1;
1734 /* Note that unlike some other backends, the refcount is not
1735 incremented for a non-call (and non-plabel) function reference. */
1736 else if (eh
->plt
.refcount
<= 0
1739 /* The .plt entry is not needed when:
1740 a) Garbage collection has removed all references to the
1742 b) We know for certain the symbol is defined in this
1743 object, and it's not a weak definition, nor is the symbol
1744 used by a plabel relocation. Either this object is the
1745 application or we are doing a shared symbolic link. */
1746 eh
->plt
.offset
= (bfd_vma
) -1;
1750 /* Unlike other targets, elf32-hppa.c does not define a function
1751 symbol in a non-pic executable on PLT stub code, so we don't
1752 have a local definition in that case. ie. dyn_relocs can't
1755 /* Function symbols can't have copy relocs. */
1759 eh
->plt
.offset
= (bfd_vma
) -1;
1761 htab
= hppa_link_hash_table (info
);
1765 /* If this is a weak symbol, and there is a real definition, the
1766 processor independent code will have arranged for us to see the
1767 real definition first, and we can just use the same value. */
1768 if (eh
->is_weakalias
)
1770 struct elf_link_hash_entry
*def
= weakdef (eh
);
1771 BFD_ASSERT (def
->root
.type
== bfd_link_hash_defined
);
1772 eh
->root
.u
.def
.section
= def
->root
.u
.def
.section
;
1773 eh
->root
.u
.def
.value
= def
->root
.u
.def
.value
;
1774 if (def
->root
.u
.def
.section
== htab
->etab
.sdynbss
1775 || def
->root
.u
.def
.section
== htab
->etab
.sdynrelro
)
1776 hppa_elf_hash_entry (eh
)->dyn_relocs
= NULL
;
1780 /* This is a reference to a symbol defined by a dynamic object which
1781 is not a function. */
1783 /* If we are creating a shared library, we must presume that the
1784 only references to the symbol are via the global offset table.
1785 For such cases we need not do anything here; the relocations will
1786 be handled correctly by relocate_section. */
1787 if (bfd_link_pic (info
))
1790 /* If there are no references to this symbol that do not use the
1791 GOT, we don't need to generate a copy reloc. */
1792 if (!eh
->non_got_ref
)
1795 /* If -z nocopyreloc was given, we won't generate them either. */
1796 if (info
->nocopyreloc
)
1799 /* If we don't find any dynamic relocs in read-only sections, then
1800 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1801 if (ELIMINATE_COPY_RELOCS
1802 && !alias_readonly_dynrelocs (eh
))
1805 /* We must allocate the symbol in our .dynbss section, which will
1806 become part of the .bss section of the executable. There will be
1807 an entry for this symbol in the .dynsym section. The dynamic
1808 object will contain position independent code, so all references
1809 from the dynamic object to this symbol will go through the global
1810 offset table. The dynamic linker will use the .dynsym entry to
1811 determine the address it must put in the global offset table, so
1812 both the dynamic object and the regular object will refer to the
1813 same memory location for the variable. */
1814 if ((eh
->root
.u
.def
.section
->flags
& SEC_READONLY
) != 0)
1816 sec
= htab
->etab
.sdynrelro
;
1817 srel
= htab
->etab
.sreldynrelro
;
1821 sec
= htab
->etab
.sdynbss
;
1822 srel
= htab
->etab
.srelbss
;
1824 if ((eh
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && eh
->size
!= 0)
1826 /* We must generate a COPY reloc to tell the dynamic linker to
1827 copy the initial value out of the dynamic object and into the
1828 runtime process image. */
1829 srel
->size
+= sizeof (Elf32_External_Rela
);
1833 /* We no longer want dyn_relocs. */
1834 hppa_elf_hash_entry (eh
)->dyn_relocs
= NULL
;
1835 return _bfd_elf_adjust_dynamic_copy (info
, eh
, sec
);
1838 /* If EH is undefined, make it dynamic if that makes sense. */
1841 ensure_undef_dynamic (struct bfd_link_info
*info
,
1842 struct elf_link_hash_entry
*eh
)
1844 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
1846 if (htab
->dynamic_sections_created
1847 && (eh
->root
.type
== bfd_link_hash_undefweak
1848 || eh
->root
.type
== bfd_link_hash_undefined
)
1849 && eh
->dynindx
== -1
1850 && !eh
->forced_local
1851 && eh
->type
!= STT_PARISC_MILLI
1852 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info
, eh
)
1853 && ELF_ST_VISIBILITY (eh
->other
) == STV_DEFAULT
)
1854 return bfd_elf_link_record_dynamic_symbol (info
, eh
);
1858 /* Allocate space in the .plt for entries that won't have relocations.
1859 ie. plabel entries. */
1862 allocate_plt_static (struct elf_link_hash_entry
*eh
, void *inf
)
1864 struct bfd_link_info
*info
;
1865 struct elf32_hppa_link_hash_table
*htab
;
1866 struct elf32_hppa_link_hash_entry
*hh
;
1869 if (eh
->root
.type
== bfd_link_hash_indirect
)
1872 info
= (struct bfd_link_info
*) inf
;
1873 hh
= hppa_elf_hash_entry (eh
);
1874 htab
= hppa_link_hash_table (info
);
1878 if (htab
->etab
.dynamic_sections_created
1879 && eh
->plt
.refcount
> 0)
1881 if (!ensure_undef_dynamic (info
, eh
))
1884 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info
), eh
))
1886 /* Allocate these later. From this point on, h->plabel
1887 means that the plt entry is only used by a plabel.
1888 We'll be using a normal plt entry for this symbol, so
1889 clear the plabel indicator. */
1893 else if (hh
->plabel
)
1895 /* Make an entry in the .plt section for plabel references
1896 that won't have a .plt entry for other reasons. */
1897 sec
= htab
->etab
.splt
;
1898 eh
->plt
.offset
= sec
->size
;
1899 sec
->size
+= PLT_ENTRY_SIZE
;
1900 if (bfd_link_pic (info
))
1901 htab
->etab
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
1905 /* No .plt entry needed. */
1906 eh
->plt
.offset
= (bfd_vma
) -1;
1912 eh
->plt
.offset
= (bfd_vma
) -1;
1919 /* Calculate size of GOT entries for symbol given its TLS_TYPE. */
1921 static inline unsigned int
1922 got_entries_needed (int tls_type
)
1924 unsigned int need
= 0;
1926 if ((tls_type
& GOT_NORMAL
) != 0)
1927 need
+= GOT_ENTRY_SIZE
;
1928 if ((tls_type
& GOT_TLS_GD
) != 0)
1929 need
+= GOT_ENTRY_SIZE
* 2;
1930 if ((tls_type
& GOT_TLS_IE
) != 0)
1931 need
+= GOT_ENTRY_SIZE
;
1935 /* Calculate size of relocs needed for symbol given its TLS_TYPE and
1936 NEEDed GOT entries. TPREL_KNOWN says a TPREL offset can be
1937 calculated at link time. DTPREL_KNOWN says the same for a DTPREL
1940 static inline unsigned int
1941 got_relocs_needed (int tls_type
, unsigned int need
,
1942 bfd_boolean dtprel_known
, bfd_boolean tprel_known
)
1944 /* All the entries we allocated need relocs.
1945 Except for GD and IE with local symbols. */
1946 if ((tls_type
& GOT_TLS_GD
) != 0 && dtprel_known
)
1947 need
-= GOT_ENTRY_SIZE
;
1948 if ((tls_type
& GOT_TLS_IE
) != 0 && tprel_known
)
1949 need
-= GOT_ENTRY_SIZE
;
1950 return need
* sizeof (Elf32_External_Rela
) / GOT_ENTRY_SIZE
;
1953 /* Allocate space in .plt, .got and associated reloc sections for
1957 allocate_dynrelocs (struct elf_link_hash_entry
*eh
, void *inf
)
1959 struct bfd_link_info
*info
;
1960 struct elf32_hppa_link_hash_table
*htab
;
1962 struct elf32_hppa_link_hash_entry
*hh
;
1963 struct elf_dyn_relocs
*hdh_p
;
1965 if (eh
->root
.type
== bfd_link_hash_indirect
)
1969 htab
= hppa_link_hash_table (info
);
1973 hh
= hppa_elf_hash_entry (eh
);
1975 if (htab
->etab
.dynamic_sections_created
1976 && eh
->plt
.offset
!= (bfd_vma
) -1
1978 && eh
->plt
.refcount
> 0)
1980 /* Make an entry in the .plt section. */
1981 sec
= htab
->etab
.splt
;
1982 eh
->plt
.offset
= sec
->size
;
1983 sec
->size
+= PLT_ENTRY_SIZE
;
1985 /* We also need to make an entry in the .rela.plt section. */
1986 htab
->etab
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
1987 htab
->need_plt_stub
= 1;
1990 if (eh
->got
.refcount
> 0)
1994 if (!ensure_undef_dynamic (info
, eh
))
1997 sec
= htab
->etab
.sgot
;
1998 eh
->got
.offset
= sec
->size
;
1999 need
= got_entries_needed (hh
->tls_type
);
2001 if (htab
->etab
.dynamic_sections_created
2002 && (bfd_link_dll (info
)
2003 || (bfd_link_pic (info
) && (hh
->tls_type
& GOT_NORMAL
) != 0)
2004 || (eh
->dynindx
!= -1
2005 && !SYMBOL_REFERENCES_LOCAL (info
, eh
)))
2006 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info
, eh
))
2008 bfd_boolean local
= SYMBOL_REFERENCES_LOCAL (info
, eh
);
2009 htab
->etab
.srelgot
->size
2010 += got_relocs_needed (hh
->tls_type
, need
, local
,
2011 local
&& bfd_link_executable (info
));
2015 eh
->got
.offset
= (bfd_vma
) -1;
2017 /* If no dynamic sections we can't have dynamic relocs. */
2018 if (!htab
->etab
.dynamic_sections_created
)
2019 hh
->dyn_relocs
= NULL
;
2021 /* Discard relocs on undefined syms with non-default visibility. */
2022 else if ((eh
->root
.type
== bfd_link_hash_undefined
2023 && ELF_ST_VISIBILITY (eh
->other
) != STV_DEFAULT
)
2024 || UNDEFWEAK_NO_DYNAMIC_RELOC (info
, eh
))
2025 hh
->dyn_relocs
= NULL
;
2027 if (hh
->dyn_relocs
== NULL
)
2030 /* If this is a -Bsymbolic shared link, then we need to discard all
2031 space allocated for dynamic pc-relative relocs against symbols
2032 defined in a regular object. For the normal shared case, discard
2033 space for relocs that have become local due to symbol visibility
2035 if (bfd_link_pic (info
))
2037 #if RELATIVE_DYNRELOCS
2038 if (SYMBOL_CALLS_LOCAL (info
, eh
))
2040 struct elf_dyn_relocs
**hdh_pp
;
2042 for (hdh_pp
= &hh
->dyn_relocs
; (hdh_p
= *hdh_pp
) != NULL
; )
2044 hdh_p
->count
-= hdh_p
->pc_count
;
2045 hdh_p
->pc_count
= 0;
2046 if (hdh_p
->count
== 0)
2047 *hdh_pp
= hdh_p
->next
;
2049 hdh_pp
= &hdh_p
->next
;
2054 if (hh
->dyn_relocs
!= NULL
)
2056 if (!ensure_undef_dynamic (info
, eh
))
2060 else if (ELIMINATE_COPY_RELOCS
)
2062 /* For the non-shared case, discard space for relocs against
2063 symbols which turn out to need copy relocs or are not
2066 if (eh
->dynamic_adjusted
2068 && !ELF_COMMON_DEF_P (eh
))
2070 if (!ensure_undef_dynamic (info
, eh
))
2073 if (eh
->dynindx
== -1)
2074 hh
->dyn_relocs
= NULL
;
2077 hh
->dyn_relocs
= NULL
;
2080 /* Finally, allocate space. */
2081 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->next
)
2083 asection
*sreloc
= elf_section_data (hdh_p
->sec
)->sreloc
;
2084 sreloc
->size
+= hdh_p
->count
* sizeof (Elf32_External_Rela
);
2090 /* This function is called via elf_link_hash_traverse to force
2091 millicode symbols local so they do not end up as globals in the
2092 dynamic symbol table. We ought to be able to do this in
2093 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2094 for all dynamic symbols. Arguably, this is a bug in
2095 elf_adjust_dynamic_symbol. */
2098 clobber_millicode_symbols (struct elf_link_hash_entry
*eh
,
2099 struct bfd_link_info
*info
)
2101 if (eh
->type
== STT_PARISC_MILLI
2102 && !eh
->forced_local
)
2104 elf32_hppa_hide_symbol (info
, eh
, TRUE
);
2109 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2110 read-only sections. */
2113 maybe_set_textrel (struct elf_link_hash_entry
*eh
, void *inf
)
2117 if (eh
->root
.type
== bfd_link_hash_indirect
)
2120 sec
= readonly_dynrelocs (eh
);
2123 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
2125 info
->flags
|= DF_TEXTREL
;
2126 info
->callbacks
->minfo
2127 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2128 sec
->owner
, eh
->root
.root
.string
, sec
);
2130 /* Not an error, just cut short the traversal. */
2136 /* Set the sizes of the dynamic sections. */
2139 elf32_hppa_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2140 struct bfd_link_info
*info
)
2142 struct elf32_hppa_link_hash_table
*htab
;
2148 htab
= hppa_link_hash_table (info
);
2152 dynobj
= htab
->etab
.dynobj
;
2156 if (htab
->etab
.dynamic_sections_created
)
2158 /* Set the contents of the .interp section to the interpreter. */
2159 if (bfd_link_executable (info
) && !info
->nointerp
)
2161 sec
= bfd_get_linker_section (dynobj
, ".interp");
2164 sec
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
2165 sec
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
2168 /* Force millicode symbols local. */
2169 elf_link_hash_traverse (&htab
->etab
,
2170 clobber_millicode_symbols
,
2174 /* Set up .got and .plt offsets for local syms, and space for local
2176 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
2178 bfd_signed_vma
*local_got
;
2179 bfd_signed_vma
*end_local_got
;
2180 bfd_signed_vma
*local_plt
;
2181 bfd_signed_vma
*end_local_plt
;
2182 bfd_size_type locsymcount
;
2183 Elf_Internal_Shdr
*symtab_hdr
;
2185 char *local_tls_type
;
2187 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2190 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
2192 struct elf_dyn_relocs
*hdh_p
;
2194 for (hdh_p
= ((struct elf_dyn_relocs
*)
2195 elf_section_data (sec
)->local_dynrel
);
2197 hdh_p
= hdh_p
->next
)
2199 if (!bfd_is_abs_section (hdh_p
->sec
)
2200 && bfd_is_abs_section (hdh_p
->sec
->output_section
))
2202 /* Input section has been discarded, either because
2203 it is a copy of a linkonce section or due to
2204 linker script /DISCARD/, so we'll be discarding
2207 else if (hdh_p
->count
!= 0)
2209 srel
= elf_section_data (hdh_p
->sec
)->sreloc
;
2210 srel
->size
+= hdh_p
->count
* sizeof (Elf32_External_Rela
);
2211 if ((hdh_p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2212 info
->flags
|= DF_TEXTREL
;
2217 local_got
= elf_local_got_refcounts (ibfd
);
2221 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
2222 locsymcount
= symtab_hdr
->sh_info
;
2223 end_local_got
= local_got
+ locsymcount
;
2224 local_tls_type
= hppa_elf_local_got_tls_type (ibfd
);
2225 sec
= htab
->etab
.sgot
;
2226 srel
= htab
->etab
.srelgot
;
2227 for (; local_got
< end_local_got
; ++local_got
)
2233 *local_got
= sec
->size
;
2234 need
= got_entries_needed (*local_tls_type
);
2236 if (bfd_link_dll (info
)
2237 || (bfd_link_pic (info
)
2238 && (*local_tls_type
& GOT_NORMAL
) != 0))
2239 htab
->etab
.srelgot
->size
2240 += got_relocs_needed (*local_tls_type
, need
, TRUE
,
2241 bfd_link_executable (info
));
2244 *local_got
= (bfd_vma
) -1;
2249 local_plt
= end_local_got
;
2250 end_local_plt
= local_plt
+ locsymcount
;
2251 if (! htab
->etab
.dynamic_sections_created
)
2253 /* Won't be used, but be safe. */
2254 for (; local_plt
< end_local_plt
; ++local_plt
)
2255 *local_plt
= (bfd_vma
) -1;
2259 sec
= htab
->etab
.splt
;
2260 srel
= htab
->etab
.srelplt
;
2261 for (; local_plt
< end_local_plt
; ++local_plt
)
2265 *local_plt
= sec
->size
;
2266 sec
->size
+= PLT_ENTRY_SIZE
;
2267 if (bfd_link_pic (info
))
2268 srel
->size
+= sizeof (Elf32_External_Rela
);
2271 *local_plt
= (bfd_vma
) -1;
2276 if (htab
->tls_ldm_got
.refcount
> 0)
2278 /* Allocate 2 got entries and 1 dynamic reloc for
2279 R_PARISC_TLS_DTPMOD32 relocs. */
2280 htab
->tls_ldm_got
.offset
= htab
->etab
.sgot
->size
;
2281 htab
->etab
.sgot
->size
+= (GOT_ENTRY_SIZE
* 2);
2282 htab
->etab
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
2285 htab
->tls_ldm_got
.offset
= -1;
2287 /* Do all the .plt entries without relocs first. The dynamic linker
2288 uses the last .plt reloc to find the end of the .plt (and hence
2289 the start of the .got) for lazy linking. */
2290 elf_link_hash_traverse (&htab
->etab
, allocate_plt_static
, info
);
2292 /* Allocate global sym .plt and .got entries, and space for global
2293 sym dynamic relocs. */
2294 elf_link_hash_traverse (&htab
->etab
, allocate_dynrelocs
, info
);
2296 /* The check_relocs and adjust_dynamic_symbol entry points have
2297 determined the sizes of the various dynamic sections. Allocate
2300 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
2302 if ((sec
->flags
& SEC_LINKER_CREATED
) == 0)
2305 if (sec
== htab
->etab
.splt
)
2307 if (htab
->need_plt_stub
)
2309 /* Make space for the plt stub at the end of the .plt
2310 section. We want this stub right at the end, up
2311 against the .got section. */
2312 int gotalign
= bfd_section_alignment (htab
->etab
.sgot
);
2313 int pltalign
= bfd_section_alignment (sec
);
2314 int align
= gotalign
> 3 ? gotalign
: 3;
2317 if (align
> pltalign
)
2318 bfd_set_section_alignment (sec
, align
);
2319 mask
= ((bfd_size_type
) 1 << gotalign
) - 1;
2320 sec
->size
= (sec
->size
+ sizeof (plt_stub
) + mask
) & ~mask
;
2323 else if (sec
== htab
->etab
.sgot
2324 || sec
== htab
->etab
.sdynbss
2325 || sec
== htab
->etab
.sdynrelro
)
2327 else if (CONST_STRNEQ (bfd_section_name (sec
), ".rela"))
2331 /* Remember whether there are any reloc sections other
2333 if (sec
!= htab
->etab
.srelplt
)
2336 /* We use the reloc_count field as a counter if we need
2337 to copy relocs into the output file. */
2338 sec
->reloc_count
= 0;
2343 /* It's not one of our sections, so don't allocate space. */
2349 /* If we don't need this section, strip it from the
2350 output file. This is mostly to handle .rela.bss and
2351 .rela.plt. We must create both sections in
2352 create_dynamic_sections, because they must be created
2353 before the linker maps input sections to output
2354 sections. The linker does that before
2355 adjust_dynamic_symbol is called, and it is that
2356 function which decides whether anything needs to go
2357 into these sections. */
2358 sec
->flags
|= SEC_EXCLUDE
;
2362 if ((sec
->flags
& SEC_HAS_CONTENTS
) == 0)
2365 /* Allocate memory for the section contents. Zero it, because
2366 we may not fill in all the reloc sections. */
2367 sec
->contents
= bfd_zalloc (dynobj
, sec
->size
);
2368 if (sec
->contents
== NULL
)
2372 if (htab
->etab
.dynamic_sections_created
)
2374 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2375 actually has nothing to do with the PLT, it is how we
2376 communicate the LTP value of a load module to the dynamic
2378 #define add_dynamic_entry(TAG, VAL) \
2379 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2381 if (!add_dynamic_entry (DT_PLTGOT
, 0))
2384 /* Add some entries to the .dynamic section. We fill in the
2385 values later, in elf32_hppa_finish_dynamic_sections, but we
2386 must add the entries now so that we get the correct size for
2387 the .dynamic section. The DT_DEBUG entry is filled in by the
2388 dynamic linker and used by the debugger. */
2389 if (bfd_link_executable (info
))
2391 if (!add_dynamic_entry (DT_DEBUG
, 0))
2395 if (htab
->etab
.srelplt
->size
!= 0)
2397 if (!add_dynamic_entry (DT_PLTRELSZ
, 0)
2398 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
2399 || !add_dynamic_entry (DT_JMPREL
, 0))
2405 if (!add_dynamic_entry (DT_RELA
, 0)
2406 || !add_dynamic_entry (DT_RELASZ
, 0)
2407 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
2410 /* If any dynamic relocs apply to a read-only section,
2411 then we need a DT_TEXTREL entry. */
2412 if ((info
->flags
& DF_TEXTREL
) == 0)
2413 elf_link_hash_traverse (&htab
->etab
, maybe_set_textrel
, info
);
2415 if ((info
->flags
& DF_TEXTREL
) != 0)
2417 if (!add_dynamic_entry (DT_TEXTREL
, 0))
2422 #undef add_dynamic_entry
2427 /* External entry points for sizing and building linker stubs. */
2429 /* Set up various things so that we can make a list of input sections
2430 for each output section included in the link. Returns -1 on error,
2431 0 when no stubs will be needed, and 1 on success. */
2434 elf32_hppa_setup_section_lists (bfd
*output_bfd
, struct bfd_link_info
*info
)
2437 unsigned int bfd_count
;
2438 unsigned int top_id
, top_index
;
2440 asection
**input_list
, **list
;
2442 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2447 /* Count the number of input BFDs and find the top input section id. */
2448 for (input_bfd
= info
->input_bfds
, bfd_count
= 0, top_id
= 0;
2450 input_bfd
= input_bfd
->link
.next
)
2453 for (section
= input_bfd
->sections
;
2455 section
= section
->next
)
2457 if (top_id
< section
->id
)
2458 top_id
= section
->id
;
2461 htab
->bfd_count
= bfd_count
;
2463 amt
= sizeof (struct map_stub
) * (top_id
+ 1);
2464 htab
->stub_group
= bfd_zmalloc (amt
);
2465 if (htab
->stub_group
== NULL
)
2468 /* We can't use output_bfd->section_count here to find the top output
2469 section index as some sections may have been removed, and
2470 strip_excluded_output_sections doesn't renumber the indices. */
2471 for (section
= output_bfd
->sections
, top_index
= 0;
2473 section
= section
->next
)
2475 if (top_index
< section
->index
)
2476 top_index
= section
->index
;
2479 htab
->top_index
= top_index
;
2480 amt
= sizeof (asection
*) * (top_index
+ 1);
2481 input_list
= bfd_malloc (amt
);
2482 htab
->input_list
= input_list
;
2483 if (input_list
== NULL
)
2486 /* For sections we aren't interested in, mark their entries with a
2487 value we can check later. */
2488 list
= input_list
+ top_index
;
2490 *list
= bfd_abs_section_ptr
;
2491 while (list
-- != input_list
);
2493 for (section
= output_bfd
->sections
;
2495 section
= section
->next
)
2497 if ((section
->flags
& SEC_CODE
) != 0)
2498 input_list
[section
->index
] = NULL
;
2504 /* The linker repeatedly calls this function for each input section,
2505 in the order that input sections are linked into output sections.
2506 Build lists of input sections to determine groupings between which
2507 we may insert linker stubs. */
2510 elf32_hppa_next_input_section (struct bfd_link_info
*info
, asection
*isec
)
2512 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2517 if (isec
->output_section
->index
<= htab
->top_index
)
2519 asection
**list
= htab
->input_list
+ isec
->output_section
->index
;
2520 if (*list
!= bfd_abs_section_ptr
)
2522 /* Steal the link_sec pointer for our list. */
2523 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2524 /* This happens to make the list in reverse order,
2525 which is what we want. */
2526 PREV_SEC (isec
) = *list
;
2532 /* See whether we can group stub sections together. Grouping stub
2533 sections may result in fewer stubs. More importantly, we need to
2534 put all .init* and .fini* stubs at the beginning of the .init or
2535 .fini output sections respectively, because glibc splits the
2536 _init and _fini functions into multiple parts. Putting a stub in
2537 the middle of a function is not a good idea. */
2540 group_sections (struct elf32_hppa_link_hash_table
*htab
,
2541 bfd_size_type stub_group_size
,
2542 bfd_boolean stubs_always_before_branch
)
2544 asection
**list
= htab
->input_list
+ htab
->top_index
;
2547 asection
*tail
= *list
;
2548 if (tail
== bfd_abs_section_ptr
)
2550 while (tail
!= NULL
)
2554 bfd_size_type total
;
2555 bfd_boolean big_sec
;
2559 big_sec
= total
>= stub_group_size
;
2561 while ((prev
= PREV_SEC (curr
)) != NULL
2562 && ((total
+= curr
->output_offset
- prev
->output_offset
)
2566 /* OK, the size from the start of CURR to the end is less
2567 than 240000 bytes and thus can be handled by one stub
2568 section. (or the tail section is itself larger than
2569 240000 bytes, in which case we may be toast.)
2570 We should really be keeping track of the total size of
2571 stubs added here, as stubs contribute to the final output
2572 section size. That's a little tricky, and this way will
2573 only break if stubs added total more than 22144 bytes, or
2574 2768 long branch stubs. It seems unlikely for more than
2575 2768 different functions to be called, especially from
2576 code only 240000 bytes long. This limit used to be
2577 250000, but c++ code tends to generate lots of little
2578 functions, and sometimes violated the assumption. */
2581 prev
= PREV_SEC (tail
);
2582 /* Set up this stub group. */
2583 htab
->stub_group
[tail
->id
].link_sec
= curr
;
2585 while (tail
!= curr
&& (tail
= prev
) != NULL
);
2587 /* But wait, there's more! Input sections up to 240000
2588 bytes before the stub section can be handled by it too.
2589 Don't do this if we have a really large section after the
2590 stubs, as adding more stubs increases the chance that
2591 branches may not reach into the stub section. */
2592 if (!stubs_always_before_branch
&& !big_sec
)
2596 && ((total
+= tail
->output_offset
- prev
->output_offset
)
2600 prev
= PREV_SEC (tail
);
2601 htab
->stub_group
[tail
->id
].link_sec
= curr
;
2607 while (list
-- != htab
->input_list
);
2608 free (htab
->input_list
);
2612 /* Read in all local syms for all input bfds, and create hash entries
2613 for export stubs if we are building a multi-subspace shared lib.
2614 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2617 get_local_syms (bfd
*output_bfd
, bfd
*input_bfd
, struct bfd_link_info
*info
)
2619 unsigned int bfd_indx
;
2620 Elf_Internal_Sym
*local_syms
, **all_local_syms
;
2621 int stub_changed
= 0;
2622 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2627 /* We want to read in symbol extension records only once. To do this
2628 we need to read in the local symbols in parallel and save them for
2629 later use; so hold pointers to the local symbols in an array. */
2630 size_t amt
= sizeof (Elf_Internal_Sym
*) * htab
->bfd_count
;
2631 all_local_syms
= bfd_zmalloc (amt
);
2632 htab
->all_local_syms
= all_local_syms
;
2633 if (all_local_syms
== NULL
)
2636 /* Walk over all the input BFDs, swapping in local symbols.
2637 If we are creating a shared library, create hash entries for the
2641 input_bfd
= input_bfd
->link
.next
, bfd_indx
++)
2643 Elf_Internal_Shdr
*symtab_hdr
;
2645 /* We'll need the symbol table in a second. */
2646 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2647 if (symtab_hdr
->sh_info
== 0)
2650 /* We need an array of the local symbols attached to the input bfd. */
2651 local_syms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
2652 if (local_syms
== NULL
)
2654 local_syms
= bfd_elf_get_elf_syms (input_bfd
, symtab_hdr
,
2655 symtab_hdr
->sh_info
, 0,
2657 /* Cache them for elf_link_input_bfd. */
2658 symtab_hdr
->contents
= (unsigned char *) local_syms
;
2660 if (local_syms
== NULL
)
2663 all_local_syms
[bfd_indx
] = local_syms
;
2665 if (bfd_link_pic (info
) && htab
->multi_subspace
)
2667 struct elf_link_hash_entry
**eh_syms
;
2668 struct elf_link_hash_entry
**eh_symend
;
2669 unsigned int symcount
;
2671 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
2672 - symtab_hdr
->sh_info
);
2673 eh_syms
= (struct elf_link_hash_entry
**) elf_sym_hashes (input_bfd
);
2674 eh_symend
= (struct elf_link_hash_entry
**) (eh_syms
+ symcount
);
2676 /* Look through the global syms for functions; We need to
2677 build export stubs for all globally visible functions. */
2678 for (; eh_syms
< eh_symend
; eh_syms
++)
2680 struct elf32_hppa_link_hash_entry
*hh
;
2682 hh
= hppa_elf_hash_entry (*eh_syms
);
2684 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
2685 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
2686 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
2688 /* At this point in the link, undefined syms have been
2689 resolved, so we need to check that the symbol was
2690 defined in this BFD. */
2691 if ((hh
->eh
.root
.type
== bfd_link_hash_defined
2692 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)
2693 && hh
->eh
.type
== STT_FUNC
2694 && hh
->eh
.root
.u
.def
.section
->output_section
!= NULL
2695 && (hh
->eh
.root
.u
.def
.section
->output_section
->owner
2697 && hh
->eh
.root
.u
.def
.section
->owner
== input_bfd
2698 && hh
->eh
.def_regular
2699 && !hh
->eh
.forced_local
2700 && ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
)
2703 const char *stub_name
;
2704 struct elf32_hppa_stub_hash_entry
*hsh
;
2706 sec
= hh
->eh
.root
.u
.def
.section
;
2707 stub_name
= hh_name (hh
);
2708 hsh
= hppa_stub_hash_lookup (&htab
->bstab
,
2713 hsh
= hppa_add_stub (stub_name
, sec
, htab
);
2717 hsh
->target_value
= hh
->eh
.root
.u
.def
.value
;
2718 hsh
->target_section
= hh
->eh
.root
.u
.def
.section
;
2719 hsh
->stub_type
= hppa_stub_export
;
2725 /* xgettext:c-format */
2726 _bfd_error_handler (_("%pB: duplicate export stub %s"),
2727 input_bfd
, stub_name
);
2734 return stub_changed
;
2737 /* Determine and set the size of the stub section for a final link.
2739 The basic idea here is to examine all the relocations looking for
2740 PC-relative calls to a target that is unreachable with a "bl"
2744 elf32_hppa_size_stubs
2745 (bfd
*output_bfd
, bfd
*stub_bfd
, struct bfd_link_info
*info
,
2746 bfd_boolean multi_subspace
, bfd_signed_vma group_size
,
2747 asection
* (*add_stub_section
) (const char *, asection
*),
2748 void (*layout_sections_again
) (void))
2750 bfd_size_type stub_group_size
;
2751 bfd_boolean stubs_always_before_branch
;
2752 bfd_boolean stub_changed
;
2753 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2758 /* Stash our params away. */
2759 htab
->stub_bfd
= stub_bfd
;
2760 htab
->multi_subspace
= multi_subspace
;
2761 htab
->add_stub_section
= add_stub_section
;
2762 htab
->layout_sections_again
= layout_sections_again
;
2763 stubs_always_before_branch
= group_size
< 0;
2765 stub_group_size
= -group_size
;
2767 stub_group_size
= group_size
;
2768 if (stub_group_size
== 1)
2770 /* Default values. */
2771 if (stubs_always_before_branch
)
2773 stub_group_size
= 7680000;
2774 if (htab
->has_17bit_branch
|| htab
->multi_subspace
)
2775 stub_group_size
= 240000;
2776 if (htab
->has_12bit_branch
)
2777 stub_group_size
= 7500;
2781 stub_group_size
= 6971392;
2782 if (htab
->has_17bit_branch
|| htab
->multi_subspace
)
2783 stub_group_size
= 217856;
2784 if (htab
->has_12bit_branch
)
2785 stub_group_size
= 6808;
2789 group_sections (htab
, stub_group_size
, stubs_always_before_branch
);
2791 switch (get_local_syms (output_bfd
, info
->input_bfds
, info
))
2794 if (htab
->all_local_syms
)
2795 goto error_ret_free_local
;
2799 stub_changed
= FALSE
;
2803 stub_changed
= TRUE
;
2810 unsigned int bfd_indx
;
2813 for (input_bfd
= info
->input_bfds
, bfd_indx
= 0;
2815 input_bfd
= input_bfd
->link
.next
, bfd_indx
++)
2817 Elf_Internal_Shdr
*symtab_hdr
;
2819 Elf_Internal_Sym
*local_syms
;
2821 /* We'll need the symbol table in a second. */
2822 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2823 if (symtab_hdr
->sh_info
== 0)
2826 local_syms
= htab
->all_local_syms
[bfd_indx
];
2828 /* Walk over each section attached to the input bfd. */
2829 for (section
= input_bfd
->sections
;
2831 section
= section
->next
)
2833 Elf_Internal_Rela
*internal_relocs
, *irelaend
, *irela
;
2835 /* If there aren't any relocs, then there's nothing more
2837 if ((section
->flags
& SEC_RELOC
) == 0
2838 || (section
->flags
& SEC_ALLOC
) == 0
2839 || (section
->flags
& SEC_LOAD
) == 0
2840 || (section
->flags
& SEC_CODE
) == 0
2841 || section
->reloc_count
== 0)
2844 /* If this section is a link-once section that will be
2845 discarded, then don't create any stubs. */
2846 if (section
->output_section
== NULL
2847 || section
->output_section
->owner
!= output_bfd
)
2850 /* Get the relocs. */
2852 = _bfd_elf_link_read_relocs (input_bfd
, section
, NULL
, NULL
,
2854 if (internal_relocs
== NULL
)
2855 goto error_ret_free_local
;
2857 /* Now examine each relocation. */
2858 irela
= internal_relocs
;
2859 irelaend
= irela
+ section
->reloc_count
;
2860 for (; irela
< irelaend
; irela
++)
2862 unsigned int r_type
, r_indx
;
2863 enum elf32_hppa_stub_type stub_type
;
2864 struct elf32_hppa_stub_hash_entry
*hsh
;
2867 bfd_vma destination
;
2868 struct elf32_hppa_link_hash_entry
*hh
;
2870 const asection
*id_sec
;
2872 r_type
= ELF32_R_TYPE (irela
->r_info
);
2873 r_indx
= ELF32_R_SYM (irela
->r_info
);
2875 if (r_type
>= (unsigned int) R_PARISC_UNIMPLEMENTED
)
2877 bfd_set_error (bfd_error_bad_value
);
2878 error_ret_free_internal
:
2879 if (elf_section_data (section
)->relocs
== NULL
)
2880 free (internal_relocs
);
2881 goto error_ret_free_local
;
2884 /* Only look for stubs on call instructions. */
2885 if (r_type
!= (unsigned int) R_PARISC_PCREL12F
2886 && r_type
!= (unsigned int) R_PARISC_PCREL17F
2887 && r_type
!= (unsigned int) R_PARISC_PCREL22F
)
2890 /* Now determine the call target, its name, value,
2896 if (r_indx
< symtab_hdr
->sh_info
)
2898 /* It's a local symbol. */
2899 Elf_Internal_Sym
*sym
;
2900 Elf_Internal_Shdr
*hdr
;
2903 sym
= local_syms
+ r_indx
;
2904 if (ELF_ST_TYPE (sym
->st_info
) != STT_SECTION
)
2905 sym_value
= sym
->st_value
;
2906 shndx
= sym
->st_shndx
;
2907 if (shndx
< elf_numsections (input_bfd
))
2909 hdr
= elf_elfsections (input_bfd
)[shndx
];
2910 sym_sec
= hdr
->bfd_section
;
2911 destination
= (sym_value
+ irela
->r_addend
2912 + sym_sec
->output_offset
2913 + sym_sec
->output_section
->vma
);
2918 /* It's an external symbol. */
2921 e_indx
= r_indx
- symtab_hdr
->sh_info
;
2922 hh
= hppa_elf_hash_entry (elf_sym_hashes (input_bfd
)[e_indx
]);
2924 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
2925 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
2926 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
2928 if (hh
->eh
.root
.type
== bfd_link_hash_defined
2929 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)
2931 sym_sec
= hh
->eh
.root
.u
.def
.section
;
2932 sym_value
= hh
->eh
.root
.u
.def
.value
;
2933 if (sym_sec
->output_section
!= NULL
)
2934 destination
= (sym_value
+ irela
->r_addend
2935 + sym_sec
->output_offset
2936 + sym_sec
->output_section
->vma
);
2938 else if (hh
->eh
.root
.type
== bfd_link_hash_undefweak
)
2940 if (! bfd_link_pic (info
))
2943 else if (hh
->eh
.root
.type
== bfd_link_hash_undefined
)
2945 if (! (info
->unresolved_syms_in_objects
== RM_IGNORE
2946 && (ELF_ST_VISIBILITY (hh
->eh
.other
)
2948 && hh
->eh
.type
!= STT_PARISC_MILLI
))
2953 bfd_set_error (bfd_error_bad_value
);
2954 goto error_ret_free_internal
;
2958 /* Determine what (if any) linker stub is needed. */
2959 stub_type
= hppa_type_of_stub (section
, irela
, hh
,
2961 if (stub_type
== hppa_stub_none
)
2964 /* Support for grouping stub sections. */
2965 id_sec
= htab
->stub_group
[section
->id
].link_sec
;
2967 /* Get the name of this stub. */
2968 stub_name
= hppa_stub_name (id_sec
, sym_sec
, hh
, irela
);
2970 goto error_ret_free_internal
;
2972 hsh
= hppa_stub_hash_lookup (&htab
->bstab
,
2977 /* The proper stub has already been created. */
2982 hsh
= hppa_add_stub (stub_name
, section
, htab
);
2986 goto error_ret_free_internal
;
2989 hsh
->target_value
= sym_value
;
2990 hsh
->target_section
= sym_sec
;
2991 hsh
->stub_type
= stub_type
;
2992 if (bfd_link_pic (info
))
2994 if (stub_type
== hppa_stub_import
)
2995 hsh
->stub_type
= hppa_stub_import_shared
;
2996 else if (stub_type
== hppa_stub_long_branch
)
2997 hsh
->stub_type
= hppa_stub_long_branch_shared
;
3000 stub_changed
= TRUE
;
3003 /* We're done with the internal relocs, free them. */
3004 if (elf_section_data (section
)->relocs
== NULL
)
3005 free (internal_relocs
);
3012 /* OK, we've added some stubs. Find out the new size of the
3014 for (stub_sec
= htab
->stub_bfd
->sections
;
3016 stub_sec
= stub_sec
->next
)
3017 if ((stub_sec
->flags
& SEC_LINKER_CREATED
) == 0)
3020 bfd_hash_traverse (&htab
->bstab
, hppa_size_one_stub
, htab
);
3022 /* Ask the linker to do its stuff. */
3023 (*htab
->layout_sections_again
) ();
3024 stub_changed
= FALSE
;
3027 free (htab
->all_local_syms
);
3030 error_ret_free_local
:
3031 free (htab
->all_local_syms
);
3035 /* For a final link, this function is called after we have sized the
3036 stubs to provide a value for __gp. */
3039 elf32_hppa_set_gp (bfd
*abfd
, struct bfd_link_info
*info
)
3041 struct bfd_link_hash_entry
*h
;
3042 asection
*sec
= NULL
;
3045 h
= bfd_link_hash_lookup (info
->hash
, "$global$", FALSE
, FALSE
, FALSE
);
3048 && (h
->type
== bfd_link_hash_defined
3049 || h
->type
== bfd_link_hash_defweak
))
3051 gp_val
= h
->u
.def
.value
;
3052 sec
= h
->u
.def
.section
;
3056 asection
*splt
= bfd_get_section_by_name (abfd
, ".plt");
3057 asection
*sgot
= bfd_get_section_by_name (abfd
, ".got");
3059 /* Choose to point our LTP at, in this order, one of .plt, .got,
3060 or .data, if these sections exist. In the case of choosing
3061 .plt try to make the LTP ideal for addressing anywhere in the
3062 .plt or .got with a 14 bit signed offset. Typically, the end
3063 of the .plt is the start of the .got, so choose .plt + 0x2000
3064 if either the .plt or .got is larger than 0x2000. If both
3065 the .plt and .got are smaller than 0x2000, choose the end of
3066 the .plt section. */
3067 sec
= strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") == 0
3072 if (gp_val
> 0x2000 || (sgot
&& sgot
->size
> 0x2000))
3082 if (strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") != 0)
3084 /* We know we don't have a .plt. If .got is large,
3086 if (sec
->size
> 0x2000)
3092 /* No .plt or .got. Who cares what the LTP is? */
3093 sec
= bfd_get_section_by_name (abfd
, ".data");
3099 h
->type
= bfd_link_hash_defined
;
3100 h
->u
.def
.value
= gp_val
;
3102 h
->u
.def
.section
= sec
;
3104 h
->u
.def
.section
= bfd_abs_section_ptr
;
3108 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
3110 if (sec
!= NULL
&& sec
->output_section
!= NULL
)
3111 gp_val
+= sec
->output_section
->vma
+ sec
->output_offset
;
3113 elf_gp (abfd
) = gp_val
;
3118 /* Build all the stubs associated with the current output file. The
3119 stubs are kept in a hash table attached to the main linker hash
3120 table. We also set up the .plt entries for statically linked PIC
3121 functions here. This function is called via hppaelf_finish in the
3125 elf32_hppa_build_stubs (struct bfd_link_info
*info
)
3128 struct bfd_hash_table
*table
;
3129 struct elf32_hppa_link_hash_table
*htab
;
3131 htab
= hppa_link_hash_table (info
);
3135 for (stub_sec
= htab
->stub_bfd
->sections
;
3137 stub_sec
= stub_sec
->next
)
3138 if ((stub_sec
->flags
& SEC_LINKER_CREATED
) == 0
3139 && stub_sec
->size
!= 0)
3141 /* Allocate memory to hold the linker stubs. */
3142 stub_sec
->contents
= bfd_zalloc (htab
->stub_bfd
, stub_sec
->size
);
3143 if (stub_sec
->contents
== NULL
)
3148 /* Build the stubs as directed by the stub hash table. */
3149 table
= &htab
->bstab
;
3150 bfd_hash_traverse (table
, hppa_build_one_stub
, info
);
3155 /* Return the base vma address which should be subtracted from the real
3156 address when resolving a dtpoff relocation.
3157 This is PT_TLS segment p_vaddr. */
3160 dtpoff_base (struct bfd_link_info
*info
)
3162 /* If tls_sec is NULL, we should have signalled an error already. */
3163 if (elf_hash_table (info
)->tls_sec
== NULL
)
3165 return elf_hash_table (info
)->tls_sec
->vma
;
3168 /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3171 tpoff (struct bfd_link_info
*info
, bfd_vma address
)
3173 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
3175 /* If tls_sec is NULL, we should have signalled an error already. */
3176 if (htab
->tls_sec
== NULL
)
3178 /* hppa TLS ABI is variant I and static TLS block start just after
3179 tcbhead structure which has 2 pointer fields. */
3180 return (address
- htab
->tls_sec
->vma
3181 + align_power ((bfd_vma
) 8, htab
->tls_sec
->alignment_power
));
3184 /* Perform a final link. */
3187 elf32_hppa_final_link (bfd
*abfd
, struct bfd_link_info
*info
)
3191 /* Invoke the regular ELF linker to do all the work. */
3192 if (!bfd_elf_final_link (abfd
, info
))
3195 /* If we're producing a final executable, sort the contents of the
3197 if (bfd_link_relocatable (info
))
3200 /* Do not attempt to sort non-regular files. This is here
3201 especially for configure scripts and kernel builds which run
3202 tests with "ld [...] -o /dev/null". */
3203 if (stat (abfd
->filename
, &buf
) != 0
3204 || !S_ISREG(buf
.st_mode
))
3207 return elf_hppa_sort_unwind (abfd
);
3210 /* Record the lowest address for the data and text segments. */
3213 hppa_record_segment_addr (bfd
*abfd
, asection
*section
, void *data
)
3215 struct elf32_hppa_link_hash_table
*htab
;
3217 htab
= (struct elf32_hppa_link_hash_table
*) data
;
3221 if ((section
->flags
& (SEC_ALLOC
| SEC_LOAD
)) == (SEC_ALLOC
| SEC_LOAD
))
3224 Elf_Internal_Phdr
*p
;
3226 p
= _bfd_elf_find_segment_containing_section (abfd
, section
->output_section
);
3227 BFD_ASSERT (p
!= NULL
);
3230 if ((section
->flags
& SEC_READONLY
) != 0)
3232 if (value
< htab
->text_segment_base
)
3233 htab
->text_segment_base
= value
;
3237 if (value
< htab
->data_segment_base
)
3238 htab
->data_segment_base
= value
;
3243 /* Perform a relocation as part of a final link. */
3245 static bfd_reloc_status_type
3246 final_link_relocate (asection
*input_section
,
3248 const Elf_Internal_Rela
*rela
,
3250 struct elf32_hppa_link_hash_table
*htab
,
3252 struct elf32_hppa_link_hash_entry
*hh
,
3253 struct bfd_link_info
*info
)
3256 unsigned int r_type
= ELF32_R_TYPE (rela
->r_info
);
3257 unsigned int orig_r_type
= r_type
;
3258 reloc_howto_type
*howto
= elf_hppa_howto_table
+ r_type
;
3259 int r_format
= howto
->bitsize
;
3260 enum hppa_reloc_field_selector_type_alt r_field
;
3261 bfd
*input_bfd
= input_section
->owner
;
3262 bfd_vma offset
= rela
->r_offset
;
3263 bfd_vma max_branch_offset
= 0;
3264 bfd_byte
*hit_data
= contents
+ offset
;
3265 bfd_signed_vma addend
= rela
->r_addend
;
3267 struct elf32_hppa_stub_hash_entry
*hsh
= NULL
;
3270 if (r_type
== R_PARISC_NONE
)
3271 return bfd_reloc_ok
;
3273 insn
= bfd_get_32 (input_bfd
, hit_data
);
3275 /* Find out where we are and where we're going. */
3276 location
= (offset
+
3277 input_section
->output_offset
+
3278 input_section
->output_section
->vma
);
3280 /* If we are not building a shared library, convert DLTIND relocs to
3282 if (!bfd_link_pic (info
))
3286 case R_PARISC_DLTIND21L
:
3287 case R_PARISC_TLS_GD21L
:
3288 case R_PARISC_TLS_LDM21L
:
3289 case R_PARISC_TLS_IE21L
:
3290 r_type
= R_PARISC_DPREL21L
;
3293 case R_PARISC_DLTIND14R
:
3294 case R_PARISC_TLS_GD14R
:
3295 case R_PARISC_TLS_LDM14R
:
3296 case R_PARISC_TLS_IE14R
:
3297 r_type
= R_PARISC_DPREL14R
;
3300 case R_PARISC_DLTIND14F
:
3301 r_type
= R_PARISC_DPREL14F
;
3308 case R_PARISC_PCREL12F
:
3309 case R_PARISC_PCREL17F
:
3310 case R_PARISC_PCREL22F
:
3311 /* If this call should go via the plt, find the import stub in
3314 || sym_sec
->output_section
== NULL
3316 && hh
->eh
.plt
.offset
!= (bfd_vma
) -1
3317 && hh
->eh
.dynindx
!= -1
3319 && (bfd_link_pic (info
)
3320 || !hh
->eh
.def_regular
3321 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)))
3323 hsh
= hppa_get_stub_entry (input_section
, sym_sec
,
3327 value
= (hsh
->stub_offset
3328 + hsh
->stub_sec
->output_offset
3329 + hsh
->stub_sec
->output_section
->vma
);
3332 else if (sym_sec
== NULL
&& hh
!= NULL
3333 && hh
->eh
.root
.type
== bfd_link_hash_undefweak
)
3335 /* It's OK if undefined weak. Calls to undefined weak
3336 symbols behave as if the "called" function
3337 immediately returns. We can thus call to a weak
3338 function without first checking whether the function
3344 return bfd_reloc_undefined
;
3348 case R_PARISC_PCREL21L
:
3349 case R_PARISC_PCREL17C
:
3350 case R_PARISC_PCREL17R
:
3351 case R_PARISC_PCREL14R
:
3352 case R_PARISC_PCREL14F
:
3353 case R_PARISC_PCREL32
:
3354 /* Make it a pc relative offset. */
3359 case R_PARISC_DPREL21L
:
3360 case R_PARISC_DPREL14R
:
3361 case R_PARISC_DPREL14F
:
3362 /* Convert instructions that use the linkage table pointer (r19) to
3363 instructions that use the global data pointer (dp). This is the
3364 most efficient way of using PIC code in an incomplete executable,
3365 but the user must follow the standard runtime conventions for
3366 accessing data for this to work. */
3367 if (orig_r_type
!= r_type
)
3369 if (r_type
== R_PARISC_DPREL21L
)
3371 /* GCC sometimes uses a register other than r19 for the
3372 operation, so we must convert any addil instruction
3373 that uses this relocation. */
3374 if ((insn
& 0xfc000000) == OP_ADDIL
<< 26)
3377 /* We must have a ldil instruction. It's too hard to find
3378 and convert the associated add instruction, so issue an
3381 /* xgettext:c-format */
3382 (_("%pB(%pA+%#" PRIx64
"): %s fixup for insn %#x "
3383 "is not supported in a non-shared link"),
3390 else if (r_type
== R_PARISC_DPREL14F
)
3392 /* This must be a format 1 load/store. Change the base
3394 insn
= (insn
& 0xfc1ffff) | (27 << 21);
3398 /* For all the DP relative relocations, we need to examine the symbol's
3399 section. If it has no section or if it's a code section, then
3400 "data pointer relative" makes no sense. In that case we don't
3401 adjust the "value", and for 21 bit addil instructions, we change the
3402 source addend register from %dp to %r0. This situation commonly
3403 arises for undefined weak symbols and when a variable's "constness"
3404 is declared differently from the way the variable is defined. For
3405 instance: "extern int foo" with foo defined as "const int foo". */
3406 if (sym_sec
== NULL
|| (sym_sec
->flags
& SEC_CODE
) != 0)
3408 if ((insn
& ((0x3fu
<< 26) | (0x1f << 21)))
3409 == ((OP_ADDIL
<< 26) | (27 << 21)))
3411 insn
&= ~ (0x1f << 21);
3413 /* Now try to make things easy for the dynamic linker. */
3419 case R_PARISC_DLTIND21L
:
3420 case R_PARISC_DLTIND14R
:
3421 case R_PARISC_DLTIND14F
:
3422 case R_PARISC_TLS_GD21L
:
3423 case R_PARISC_TLS_LDM21L
:
3424 case R_PARISC_TLS_IE21L
:
3425 case R_PARISC_TLS_GD14R
:
3426 case R_PARISC_TLS_LDM14R
:
3427 case R_PARISC_TLS_IE14R
:
3428 value
-= elf_gp (input_section
->output_section
->owner
);
3431 case R_PARISC_SEGREL32
:
3432 if ((sym_sec
->flags
& SEC_CODE
) != 0)
3433 value
-= htab
->text_segment_base
;
3435 value
-= htab
->data_segment_base
;
3444 case R_PARISC_DIR32
:
3445 case R_PARISC_DIR14F
:
3446 case R_PARISC_DIR17F
:
3447 case R_PARISC_PCREL17C
:
3448 case R_PARISC_PCREL14F
:
3449 case R_PARISC_PCREL32
:
3450 case R_PARISC_DPREL14F
:
3451 case R_PARISC_PLABEL32
:
3452 case R_PARISC_DLTIND14F
:
3453 case R_PARISC_SEGBASE
:
3454 case R_PARISC_SEGREL32
:
3455 case R_PARISC_TLS_DTPMOD32
:
3456 case R_PARISC_TLS_DTPOFF32
:
3457 case R_PARISC_TLS_TPREL32
:
3461 case R_PARISC_DLTIND21L
:
3462 case R_PARISC_PCREL21L
:
3463 case R_PARISC_PLABEL21L
:
3467 case R_PARISC_DIR21L
:
3468 case R_PARISC_DPREL21L
:
3469 case R_PARISC_TLS_GD21L
:
3470 case R_PARISC_TLS_LDM21L
:
3471 case R_PARISC_TLS_LDO21L
:
3472 case R_PARISC_TLS_IE21L
:
3473 case R_PARISC_TLS_LE21L
:
3477 case R_PARISC_PCREL17R
:
3478 case R_PARISC_PCREL14R
:
3479 case R_PARISC_PLABEL14R
:
3480 case R_PARISC_DLTIND14R
:
3484 case R_PARISC_DIR17R
:
3485 case R_PARISC_DIR14R
:
3486 case R_PARISC_DPREL14R
:
3487 case R_PARISC_TLS_GD14R
:
3488 case R_PARISC_TLS_LDM14R
:
3489 case R_PARISC_TLS_LDO14R
:
3490 case R_PARISC_TLS_IE14R
:
3491 case R_PARISC_TLS_LE14R
:
3495 case R_PARISC_PCREL12F
:
3496 case R_PARISC_PCREL17F
:
3497 case R_PARISC_PCREL22F
:
3500 if (r_type
== (unsigned int) R_PARISC_PCREL17F
)
3502 max_branch_offset
= (1 << (17-1)) << 2;
3504 else if (r_type
== (unsigned int) R_PARISC_PCREL12F
)
3506 max_branch_offset
= (1 << (12-1)) << 2;
3510 max_branch_offset
= (1 << (22-1)) << 2;
3513 /* sym_sec is NULL on undefined weak syms or when shared on
3514 undefined syms. We've already checked for a stub for the
3515 shared undefined case. */
3516 if (sym_sec
== NULL
)
3519 /* If the branch is out of reach, then redirect the
3520 call to the local stub for this function. */
3521 if (value
+ addend
+ max_branch_offset
>= 2*max_branch_offset
)
3523 hsh
= hppa_get_stub_entry (input_section
, sym_sec
,
3526 return bfd_reloc_undefined
;
3528 /* Munge up the value and addend so that we call the stub
3529 rather than the procedure directly. */
3530 value
= (hsh
->stub_offset
3531 + hsh
->stub_sec
->output_offset
3532 + hsh
->stub_sec
->output_section
->vma
3538 /* Something we don't know how to handle. */
3540 return bfd_reloc_notsupported
;
3543 /* Make sure we can reach the stub. */
3544 if (max_branch_offset
!= 0
3545 && value
+ addend
+ max_branch_offset
>= 2*max_branch_offset
)
3548 /* xgettext:c-format */
3549 (_("%pB(%pA+%#" PRIx64
"): cannot reach %s, "
3550 "recompile with -ffunction-sections"),
3554 hsh
->bh_root
.string
);
3555 bfd_set_error (bfd_error_bad_value
);
3556 return bfd_reloc_notsupported
;
3559 val
= hppa_field_adjust (value
, addend
, r_field
);
3563 case R_PARISC_PCREL12F
:
3564 case R_PARISC_PCREL17C
:
3565 case R_PARISC_PCREL17F
:
3566 case R_PARISC_PCREL17R
:
3567 case R_PARISC_PCREL22F
:
3568 case R_PARISC_DIR17F
:
3569 case R_PARISC_DIR17R
:
3570 /* This is a branch. Divide the offset by four.
3571 Note that we need to decide whether it's a branch or
3572 otherwise by inspecting the reloc. Inspecting insn won't
3573 work as insn might be from a .word directive. */
3581 insn
= hppa_rebuild_insn (insn
, val
, r_format
);
3583 /* Update the instruction word. */
3584 bfd_put_32 (input_bfd
, (bfd_vma
) insn
, hit_data
);
3585 return bfd_reloc_ok
;
3588 /* Relocate an HPPA ELF section. */
3591 elf32_hppa_relocate_section (bfd
*output_bfd
,
3592 struct bfd_link_info
*info
,
3594 asection
*input_section
,
3596 Elf_Internal_Rela
*relocs
,
3597 Elf_Internal_Sym
*local_syms
,
3598 asection
**local_sections
)
3600 bfd_vma
*local_got_offsets
;
3601 struct elf32_hppa_link_hash_table
*htab
;
3602 Elf_Internal_Shdr
*symtab_hdr
;
3603 Elf_Internal_Rela
*rela
;
3604 Elf_Internal_Rela
*relend
;
3606 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3608 htab
= hppa_link_hash_table (info
);
3612 local_got_offsets
= elf_local_got_offsets (input_bfd
);
3615 relend
= relocs
+ input_section
->reloc_count
;
3616 for (; rela
< relend
; rela
++)
3618 unsigned int r_type
;
3619 reloc_howto_type
*howto
;
3620 unsigned int r_symndx
;
3621 struct elf32_hppa_link_hash_entry
*hh
;
3622 Elf_Internal_Sym
*sym
;
3625 bfd_reloc_status_type rstatus
;
3626 const char *sym_name
;
3628 bfd_boolean warned_undef
;
3630 r_type
= ELF32_R_TYPE (rela
->r_info
);
3631 if (r_type
>= (unsigned int) R_PARISC_UNIMPLEMENTED
)
3633 bfd_set_error (bfd_error_bad_value
);
3636 if (r_type
== (unsigned int) R_PARISC_GNU_VTENTRY
3637 || r_type
== (unsigned int) R_PARISC_GNU_VTINHERIT
)
3640 r_symndx
= ELF32_R_SYM (rela
->r_info
);
3644 warned_undef
= FALSE
;
3645 if (r_symndx
< symtab_hdr
->sh_info
)
3647 /* This is a local symbol, h defaults to NULL. */
3648 sym
= local_syms
+ r_symndx
;
3649 sym_sec
= local_sections
[r_symndx
];
3650 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sym_sec
, rela
);
3654 struct elf_link_hash_entry
*eh
;
3655 bfd_boolean unresolved_reloc
, ignored
;
3656 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
3658 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rela
,
3659 r_symndx
, symtab_hdr
, sym_hashes
,
3660 eh
, sym_sec
, relocation
,
3661 unresolved_reloc
, warned_undef
,
3664 if (!bfd_link_relocatable (info
)
3666 && eh
->root
.type
!= bfd_link_hash_defined
3667 && eh
->root
.type
!= bfd_link_hash_defweak
3668 && eh
->root
.type
!= bfd_link_hash_undefweak
)
3670 if (info
->unresolved_syms_in_objects
== RM_IGNORE
3671 && ELF_ST_VISIBILITY (eh
->other
) == STV_DEFAULT
3672 && eh
->type
== STT_PARISC_MILLI
)
3674 (*info
->callbacks
->undefined_symbol
)
3675 (info
, eh_name (eh
), input_bfd
,
3676 input_section
, rela
->r_offset
, FALSE
);
3677 warned_undef
= TRUE
;
3680 hh
= hppa_elf_hash_entry (eh
);
3683 if (sym_sec
!= NULL
&& discarded_section (sym_sec
))
3684 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
3686 elf_hppa_howto_table
+ r_type
, 0,
3689 if (bfd_link_relocatable (info
))
3692 /* Do any required modifications to the relocation value, and
3693 determine what types of dynamic info we need to output, if
3698 case R_PARISC_DLTIND14F
:
3699 case R_PARISC_DLTIND14R
:
3700 case R_PARISC_DLTIND21L
:
3703 bfd_boolean do_got
= FALSE
;
3704 bfd_boolean reloc
= bfd_link_pic (info
);
3706 /* Relocation is to the entry for this symbol in the
3707 global offset table. */
3712 off
= hh
->eh
.got
.offset
;
3713 dyn
= htab
->etab
.dynamic_sections_created
;
3714 reloc
= (!UNDEFWEAK_NO_DYNAMIC_RELOC (info
, &hh
->eh
)
3716 || (hh
->eh
.dynindx
!= -1
3717 && !SYMBOL_REFERENCES_LOCAL (info
, &hh
->eh
))));
3719 || !WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
3720 bfd_link_pic (info
),
3723 /* If we aren't going to call finish_dynamic_symbol,
3724 then we need to handle initialisation of the .got
3725 entry and create needed relocs here. Since the
3726 offset must always be a multiple of 4, we use the
3727 least significant bit to record whether we have
3728 initialised it already. */
3733 hh
->eh
.got
.offset
|= 1;
3740 /* Local symbol case. */
3741 if (local_got_offsets
== NULL
)
3744 off
= local_got_offsets
[r_symndx
];
3746 /* The offset must always be a multiple of 4. We use
3747 the least significant bit to record whether we have
3748 already generated the necessary reloc. */
3753 local_got_offsets
[r_symndx
] |= 1;
3762 /* Output a dynamic relocation for this GOT entry.
3763 In this case it is relative to the base of the
3764 object because the symbol index is zero. */
3765 Elf_Internal_Rela outrel
;
3767 asection
*sec
= htab
->etab
.srelgot
;
3769 outrel
.r_offset
= (off
3770 + htab
->etab
.sgot
->output_offset
3771 + htab
->etab
.sgot
->output_section
->vma
);
3772 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_DIR32
);
3773 outrel
.r_addend
= relocation
;
3774 loc
= sec
->contents
;
3775 loc
+= sec
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3776 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3779 bfd_put_32 (output_bfd
, relocation
,
3780 htab
->etab
.sgot
->contents
+ off
);
3783 if (off
>= (bfd_vma
) -2)
3786 /* Add the base of the GOT to the relocation value. */
3788 + htab
->etab
.sgot
->output_offset
3789 + htab
->etab
.sgot
->output_section
->vma
);
3793 case R_PARISC_SEGREL32
:
3794 /* If this is the first SEGREL relocation, then initialize
3795 the segment base values. */
3796 if (htab
->text_segment_base
== (bfd_vma
) -1)
3797 bfd_map_over_sections (output_bfd
, hppa_record_segment_addr
, htab
);
3800 case R_PARISC_PLABEL14R
:
3801 case R_PARISC_PLABEL21L
:
3802 case R_PARISC_PLABEL32
:
3803 if (htab
->etab
.dynamic_sections_created
)
3806 bfd_boolean do_plt
= 0;
3807 /* If we have a global symbol with a PLT slot, then
3808 redirect this relocation to it. */
3811 off
= hh
->eh
.plt
.offset
;
3812 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3813 bfd_link_pic (info
),
3816 /* In a non-shared link, adjust_dynamic_symbol
3817 isn't called for symbols forced local. We
3818 need to write out the plt entry here. */
3823 hh
->eh
.plt
.offset
|= 1;
3830 bfd_vma
*local_plt_offsets
;
3832 if (local_got_offsets
== NULL
)
3835 local_plt_offsets
= local_got_offsets
+ symtab_hdr
->sh_info
;
3836 off
= local_plt_offsets
[r_symndx
];
3838 /* As for the local .got entry case, we use the last
3839 bit to record whether we've already initialised
3840 this local .plt entry. */
3845 local_plt_offsets
[r_symndx
] |= 1;
3852 if (bfd_link_pic (info
))
3854 /* Output a dynamic IPLT relocation for this
3856 Elf_Internal_Rela outrel
;
3858 asection
*s
= htab
->etab
.srelplt
;
3860 outrel
.r_offset
= (off
3861 + htab
->etab
.splt
->output_offset
3862 + htab
->etab
.splt
->output_section
->vma
);
3863 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_IPLT
);
3864 outrel
.r_addend
= relocation
;
3866 loc
+= s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3867 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3871 bfd_put_32 (output_bfd
,
3873 htab
->etab
.splt
->contents
+ off
);
3874 bfd_put_32 (output_bfd
,
3875 elf_gp (htab
->etab
.splt
->output_section
->owner
),
3876 htab
->etab
.splt
->contents
+ off
+ 4);
3880 if (off
>= (bfd_vma
) -2)
3883 /* PLABELs contain function pointers. Relocation is to
3884 the entry for the function in the .plt. The magic +2
3885 offset signals to $$dyncall that the function pointer
3886 is in the .plt and thus has a gp pointer too.
3887 Exception: Undefined PLABELs should have a value of
3890 || (hh
->eh
.root
.type
!= bfd_link_hash_undefweak
3891 && hh
->eh
.root
.type
!= bfd_link_hash_undefined
))
3894 + htab
->etab
.splt
->output_offset
3895 + htab
->etab
.splt
->output_section
->vma
3902 case R_PARISC_DIR17F
:
3903 case R_PARISC_DIR17R
:
3904 case R_PARISC_DIR14F
:
3905 case R_PARISC_DIR14R
:
3906 case R_PARISC_DIR21L
:
3907 case R_PARISC_DPREL14F
:
3908 case R_PARISC_DPREL14R
:
3909 case R_PARISC_DPREL21L
:
3910 case R_PARISC_DIR32
:
3911 if ((input_section
->flags
& SEC_ALLOC
) == 0)
3914 if (bfd_link_pic (info
)
3916 || hh
->dyn_relocs
!= NULL
)
3917 && ((hh
!= NULL
&& pc_dynrelocs (hh
))
3918 || IS_ABSOLUTE_RELOC (r_type
)))
3920 && hh
->dyn_relocs
!= NULL
))
3922 Elf_Internal_Rela outrel
;
3927 /* When generating a shared object, these relocations
3928 are copied into the output file to be resolved at run
3931 outrel
.r_addend
= rela
->r_addend
;
3933 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
3935 skip
= (outrel
.r_offset
== (bfd_vma
) -1
3936 || outrel
.r_offset
== (bfd_vma
) -2);
3937 outrel
.r_offset
+= (input_section
->output_offset
3938 + input_section
->output_section
->vma
);
3942 memset (&outrel
, 0, sizeof (outrel
));
3945 && hh
->eh
.dynindx
!= -1
3947 || !IS_ABSOLUTE_RELOC (r_type
)
3948 || !bfd_link_pic (info
)
3949 || !SYMBOLIC_BIND (info
, &hh
->eh
)
3950 || !hh
->eh
.def_regular
))
3952 outrel
.r_info
= ELF32_R_INFO (hh
->eh
.dynindx
, r_type
);
3954 else /* It's a local symbol, or one marked to become local. */
3958 /* Add the absolute offset of the symbol. */
3959 outrel
.r_addend
+= relocation
;
3961 /* Global plabels need to be processed by the
3962 dynamic linker so that functions have at most one
3963 fptr. For this reason, we need to differentiate
3964 between global and local plabels, which we do by
3965 providing the function symbol for a global plabel
3966 reloc, and no symbol for local plabels. */
3969 && sym_sec
->output_section
!= NULL
3970 && ! bfd_is_abs_section (sym_sec
))
3974 osec
= sym_sec
->output_section
;
3975 indx
= elf_section_data (osec
)->dynindx
;
3978 osec
= htab
->etab
.text_index_section
;
3979 indx
= elf_section_data (osec
)->dynindx
;
3981 BFD_ASSERT (indx
!= 0);
3983 /* We are turning this relocation into one
3984 against a section symbol, so subtract out the
3985 output section's address but not the offset
3986 of the input section in the output section. */
3987 outrel
.r_addend
-= osec
->vma
;
3990 outrel
.r_info
= ELF32_R_INFO (indx
, r_type
);
3992 sreloc
= elf_section_data (input_section
)->sreloc
;
3996 loc
= sreloc
->contents
;
3997 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3998 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4002 case R_PARISC_TLS_LDM21L
:
4003 case R_PARISC_TLS_LDM14R
:
4007 off
= htab
->tls_ldm_got
.offset
;
4012 Elf_Internal_Rela outrel
;
4015 outrel
.r_offset
= (off
4016 + htab
->etab
.sgot
->output_section
->vma
4017 + htab
->etab
.sgot
->output_offset
);
4018 outrel
.r_addend
= 0;
4019 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32
);
4020 loc
= htab
->etab
.srelgot
->contents
;
4021 loc
+= htab
->etab
.srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4023 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4024 htab
->tls_ldm_got
.offset
|= 1;
4027 /* Add the base of the GOT to the relocation value. */
4029 + htab
->etab
.sgot
->output_offset
4030 + htab
->etab
.sgot
->output_section
->vma
);
4035 case R_PARISC_TLS_LDO21L
:
4036 case R_PARISC_TLS_LDO14R
:
4037 relocation
-= dtpoff_base (info
);
4040 case R_PARISC_TLS_GD21L
:
4041 case R_PARISC_TLS_GD14R
:
4042 case R_PARISC_TLS_IE21L
:
4043 case R_PARISC_TLS_IE14R
:
4052 if (!htab
->etab
.dynamic_sections_created
4053 || hh
->eh
.dynindx
== -1
4054 || SYMBOL_REFERENCES_LOCAL (info
, &hh
->eh
)
4055 || UNDEFWEAK_NO_DYNAMIC_RELOC (info
, &hh
->eh
))
4056 /* This is actually a static link, or it is a
4057 -Bsymbolic link and the symbol is defined
4058 locally, or the symbol was forced to be local
4059 because of a version file. */
4062 indx
= hh
->eh
.dynindx
;
4063 off
= hh
->eh
.got
.offset
;
4064 tls_type
= hh
->tls_type
;
4068 off
= local_got_offsets
[r_symndx
];
4069 tls_type
= hppa_elf_local_got_tls_type (input_bfd
)[r_symndx
];
4072 if (tls_type
== GOT_UNKNOWN
)
4079 bfd_boolean need_relocs
= FALSE
;
4080 Elf_Internal_Rela outrel
;
4081 bfd_byte
*loc
= NULL
;
4084 /* The GOT entries have not been initialized yet. Do it
4085 now, and emit any relocations. If both an IE GOT and a
4086 GD GOT are necessary, we emit the GD first. */
4089 || (bfd_link_dll (info
)
4091 || !UNDEFWEAK_NO_DYNAMIC_RELOC (info
, &hh
->eh
))))
4094 loc
= htab
->etab
.srelgot
->contents
;
4095 loc
+= (htab
->etab
.srelgot
->reloc_count
4096 * sizeof (Elf32_External_Rela
));
4099 if (tls_type
& GOT_TLS_GD
)
4105 + htab
->etab
.sgot
->output_section
->vma
4106 + htab
->etab
.sgot
->output_offset
);
4108 = ELF32_R_INFO (indx
, R_PARISC_TLS_DTPMOD32
);
4109 outrel
.r_addend
= 0;
4110 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4111 htab
->etab
.srelgot
->reloc_count
++;
4112 loc
+= sizeof (Elf32_External_Rela
);
4113 bfd_put_32 (output_bfd
, 0,
4114 htab
->etab
.sgot
->contents
+ cur_off
);
4117 /* If we are not emitting relocations for a
4118 general dynamic reference, then we must be in a
4119 static link or an executable link with the
4120 symbol binding locally. Mark it as belonging
4121 to module 1, the executable. */
4122 bfd_put_32 (output_bfd
, 1,
4123 htab
->etab
.sgot
->contents
+ cur_off
);
4128 = ELF32_R_INFO (indx
, R_PARISC_TLS_DTPOFF32
);
4129 outrel
.r_offset
+= 4;
4130 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4131 htab
->etab
.srelgot
->reloc_count
++;
4132 loc
+= sizeof (Elf32_External_Rela
);
4133 bfd_put_32 (output_bfd
, 0,
4134 htab
->etab
.sgot
->contents
+ cur_off
+ 4);
4137 bfd_put_32 (output_bfd
, relocation
- dtpoff_base (info
),
4138 htab
->etab
.sgot
->contents
+ cur_off
+ 4);
4142 if (tls_type
& GOT_TLS_IE
)
4145 && !(bfd_link_executable (info
)
4146 && SYMBOL_REFERENCES_LOCAL (info
, &hh
->eh
)))
4150 + htab
->etab
.sgot
->output_section
->vma
4151 + htab
->etab
.sgot
->output_offset
);
4152 outrel
.r_info
= ELF32_R_INFO (indx
,
4153 R_PARISC_TLS_TPREL32
);
4155 outrel
.r_addend
= relocation
- dtpoff_base (info
);
4157 outrel
.r_addend
= 0;
4158 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4159 htab
->etab
.srelgot
->reloc_count
++;
4160 loc
+= sizeof (Elf32_External_Rela
);
4163 bfd_put_32 (output_bfd
, tpoff (info
, relocation
),
4164 htab
->etab
.sgot
->contents
+ cur_off
);
4169 hh
->eh
.got
.offset
|= 1;
4171 local_got_offsets
[r_symndx
] |= 1;
4174 if ((tls_type
& GOT_NORMAL
) != 0
4175 && (tls_type
& (GOT_TLS_GD
| GOT_TLS_LDM
| GOT_TLS_IE
)) != 0)
4178 _bfd_error_handler (_("%s has both normal and TLS relocs"),
4182 Elf_Internal_Sym
*isym
4183 = bfd_sym_from_r_symndx (&htab
->sym_cache
,
4184 input_bfd
, r_symndx
);
4188 = bfd_elf_string_from_elf_section (input_bfd
,
4189 symtab_hdr
->sh_link
,
4191 if (sym_name
== NULL
)
4193 if (*sym_name
== '\0')
4194 sym_name
= bfd_section_name (sym_sec
);
4196 (_("%pB:%s has both normal and TLS relocs"),
4197 input_bfd
, sym_name
);
4199 bfd_set_error (bfd_error_bad_value
);
4203 if ((tls_type
& GOT_TLS_GD
)
4204 && r_type
!= R_PARISC_TLS_GD21L
4205 && r_type
!= R_PARISC_TLS_GD14R
)
4206 off
+= 2 * GOT_ENTRY_SIZE
;
4208 /* Add the base of the GOT to the relocation value. */
4210 + htab
->etab
.sgot
->output_offset
4211 + htab
->etab
.sgot
->output_section
->vma
);
4216 case R_PARISC_TLS_LE21L
:
4217 case R_PARISC_TLS_LE14R
:
4219 relocation
= tpoff (info
, relocation
);
4228 rstatus
= final_link_relocate (input_section
, contents
, rela
, relocation
,
4229 htab
, sym_sec
, hh
, info
);
4231 if (rstatus
== bfd_reloc_ok
)
4235 sym_name
= hh_name (hh
);
4238 sym_name
= bfd_elf_string_from_elf_section (input_bfd
,
4239 symtab_hdr
->sh_link
,
4241 if (sym_name
== NULL
)
4243 if (*sym_name
== '\0')
4244 sym_name
= bfd_section_name (sym_sec
);
4247 howto
= elf_hppa_howto_table
+ r_type
;
4249 if (rstatus
== bfd_reloc_undefined
|| rstatus
== bfd_reloc_notsupported
)
4251 if (rstatus
== bfd_reloc_notsupported
|| !warned_undef
)
4254 /* xgettext:c-format */
4255 (_("%pB(%pA+%#" PRIx64
"): cannot handle %s for %s"),
4258 (uint64_t) rela
->r_offset
,
4261 bfd_set_error (bfd_error_bad_value
);
4266 (*info
->callbacks
->reloc_overflow
)
4267 (info
, (hh
? &hh
->eh
.root
: NULL
), sym_name
, howto
->name
,
4268 (bfd_vma
) 0, input_bfd
, input_section
, rela
->r_offset
);
4274 /* Finish up dynamic symbol handling. We set the contents of various
4275 dynamic sections here. */
4278 elf32_hppa_finish_dynamic_symbol (bfd
*output_bfd
,
4279 struct bfd_link_info
*info
,
4280 struct elf_link_hash_entry
*eh
,
4281 Elf_Internal_Sym
*sym
)
4283 struct elf32_hppa_link_hash_table
*htab
;
4284 Elf_Internal_Rela rela
;
4287 htab
= hppa_link_hash_table (info
);
4291 if (eh
->plt
.offset
!= (bfd_vma
) -1)
4295 if (eh
->plt
.offset
& 1)
4298 /* This symbol has an entry in the procedure linkage table. Set
4301 The format of a plt entry is
4306 if (eh
->root
.type
== bfd_link_hash_defined
4307 || eh
->root
.type
== bfd_link_hash_defweak
)
4309 value
= eh
->root
.u
.def
.value
;
4310 if (eh
->root
.u
.def
.section
->output_section
!= NULL
)
4311 value
+= (eh
->root
.u
.def
.section
->output_offset
4312 + eh
->root
.u
.def
.section
->output_section
->vma
);
4315 /* Create a dynamic IPLT relocation for this entry. */
4316 rela
.r_offset
= (eh
->plt
.offset
4317 + htab
->etab
.splt
->output_offset
4318 + htab
->etab
.splt
->output_section
->vma
);
4319 if (eh
->dynindx
!= -1)
4321 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_IPLT
);
4326 /* This symbol has been marked to become local, and is
4327 used by a plabel so must be kept in the .plt. */
4328 rela
.r_info
= ELF32_R_INFO (0, R_PARISC_IPLT
);
4329 rela
.r_addend
= value
;
4332 loc
= htab
->etab
.srelplt
->contents
;
4333 loc
+= htab
->etab
.srelplt
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4334 bfd_elf32_swap_reloca_out (htab
->etab
.splt
->output_section
->owner
, &rela
, loc
);
4336 if (!eh
->def_regular
)
4338 /* Mark the symbol as undefined, rather than as defined in
4339 the .plt section. Leave the value alone. */
4340 sym
->st_shndx
= SHN_UNDEF
;
4344 if (eh
->got
.offset
!= (bfd_vma
) -1
4345 && (hppa_elf_hash_entry (eh
)->tls_type
& GOT_NORMAL
) != 0
4346 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info
, eh
))
4348 bfd_boolean is_dyn
= (eh
->dynindx
!= -1
4349 && !SYMBOL_REFERENCES_LOCAL (info
, eh
));
4351 if (is_dyn
|| bfd_link_pic (info
))
4353 /* This symbol has an entry in the global offset table. Set
4356 rela
.r_offset
= ((eh
->got
.offset
&~ (bfd_vma
) 1)
4357 + htab
->etab
.sgot
->output_offset
4358 + htab
->etab
.sgot
->output_section
->vma
);
4360 /* If this is a -Bsymbolic link and the symbol is defined
4361 locally or was forced to be local because of a version
4362 file, we just want to emit a RELATIVE reloc. The entry
4363 in the global offset table will already have been
4364 initialized in the relocate_section function. */
4367 rela
.r_info
= ELF32_R_INFO (0, R_PARISC_DIR32
);
4368 rela
.r_addend
= (eh
->root
.u
.def
.value
4369 + eh
->root
.u
.def
.section
->output_offset
4370 + eh
->root
.u
.def
.section
->output_section
->vma
);
4374 if ((eh
->got
.offset
& 1) != 0)
4377 bfd_put_32 (output_bfd
, 0,
4378 htab
->etab
.sgot
->contents
+ (eh
->got
.offset
& ~1));
4379 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_DIR32
);
4383 loc
= htab
->etab
.srelgot
->contents
;
4384 loc
+= (htab
->etab
.srelgot
->reloc_count
++
4385 * sizeof (Elf32_External_Rela
));
4386 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4394 /* This symbol needs a copy reloc. Set it up. */
4396 if (! (eh
->dynindx
!= -1
4397 && (eh
->root
.type
== bfd_link_hash_defined
4398 || eh
->root
.type
== bfd_link_hash_defweak
)))
4401 rela
.r_offset
= (eh
->root
.u
.def
.value
4402 + eh
->root
.u
.def
.section
->output_offset
4403 + eh
->root
.u
.def
.section
->output_section
->vma
);
4405 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_COPY
);
4406 if (eh
->root
.u
.def
.section
== htab
->etab
.sdynrelro
)
4407 sec
= htab
->etab
.sreldynrelro
;
4409 sec
= htab
->etab
.srelbss
;
4410 loc
= sec
->contents
+ sec
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4411 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4414 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4415 if (eh
== htab
->etab
.hdynamic
|| eh
== htab
->etab
.hgot
)
4417 sym
->st_shndx
= SHN_ABS
;
4423 /* Used to decide how to sort relocs in an optimal manner for the
4424 dynamic linker, before writing them out. */
4426 static enum elf_reloc_type_class
4427 elf32_hppa_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
4428 const asection
*rel_sec ATTRIBUTE_UNUSED
,
4429 const Elf_Internal_Rela
*rela
)
4431 /* Handle TLS relocs first; we don't want them to be marked
4432 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
4434 switch ((int) ELF32_R_TYPE (rela
->r_info
))
4436 case R_PARISC_TLS_DTPMOD32
:
4437 case R_PARISC_TLS_DTPOFF32
:
4438 case R_PARISC_TLS_TPREL32
:
4439 return reloc_class_normal
;
4442 if (ELF32_R_SYM (rela
->r_info
) == STN_UNDEF
)
4443 return reloc_class_relative
;
4445 switch ((int) ELF32_R_TYPE (rela
->r_info
))
4448 return reloc_class_plt
;
4450 return reloc_class_copy
;
4452 return reloc_class_normal
;
4456 /* Finish up the dynamic sections. */
4459 elf32_hppa_finish_dynamic_sections (bfd
*output_bfd
,
4460 struct bfd_link_info
*info
)
4463 struct elf32_hppa_link_hash_table
*htab
;
4467 htab
= hppa_link_hash_table (info
);
4471 dynobj
= htab
->etab
.dynobj
;
4473 sgot
= htab
->etab
.sgot
;
4474 /* A broken linker script might have discarded the dynamic sections.
4475 Catch this here so that we do not seg-fault later on. */
4476 if (sgot
!= NULL
&& bfd_is_abs_section (sgot
->output_section
))
4479 sdyn
= bfd_get_linker_section (dynobj
, ".dynamic");
4481 if (htab
->etab
.dynamic_sections_created
)
4483 Elf32_External_Dyn
*dyncon
, *dynconend
;
4488 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
4489 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
4490 for (; dyncon
< dynconend
; dyncon
++)
4492 Elf_Internal_Dyn dyn
;
4495 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4503 /* Use PLTGOT to set the GOT register. */
4504 dyn
.d_un
.d_ptr
= elf_gp (output_bfd
);
4508 s
= htab
->etab
.srelplt
;
4509 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
4513 s
= htab
->etab
.srelplt
;
4514 dyn
.d_un
.d_val
= s
->size
;
4518 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
4522 if (sgot
!= NULL
&& sgot
->size
!= 0)
4524 /* Fill in the first entry in the global offset table.
4525 We use it to point to our dynamic section, if we have one. */
4526 bfd_put_32 (output_bfd
,
4527 sdyn
? sdyn
->output_section
->vma
+ sdyn
->output_offset
: 0,
4530 /* The second entry is reserved for use by the dynamic linker. */
4531 memset (sgot
->contents
+ GOT_ENTRY_SIZE
, 0, GOT_ENTRY_SIZE
);
4533 /* Set .got entry size. */
4534 elf_section_data (sgot
->output_section
)
4535 ->this_hdr
.sh_entsize
= GOT_ENTRY_SIZE
;
4538 if (htab
->etab
.splt
!= NULL
&& htab
->etab
.splt
->size
!= 0)
4540 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4541 plt stubs and as such the section does not hold a table of fixed-size
4543 elf_section_data (htab
->etab
.splt
->output_section
)->this_hdr
.sh_entsize
= 0;
4545 if (htab
->need_plt_stub
)
4547 /* Set up the .plt stub. */
4548 memcpy (htab
->etab
.splt
->contents
4549 + htab
->etab
.splt
->size
- sizeof (plt_stub
),
4550 plt_stub
, sizeof (plt_stub
));
4552 if ((htab
->etab
.splt
->output_offset
4553 + htab
->etab
.splt
->output_section
->vma
4554 + htab
->etab
.splt
->size
)
4555 != (sgot
->output_offset
4556 + sgot
->output_section
->vma
))
4559 (_(".got section not immediately after .plt section"));
4568 /* Called when writing out an object file to decide the type of a
4571 elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym
*elf_sym
, int type
)
4573 if (ELF_ST_TYPE (elf_sym
->st_info
) == STT_PARISC_MILLI
)
4574 return STT_PARISC_MILLI
;
4579 /* Misc BFD support code. */
4580 #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4581 #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4582 #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4583 #define elf_info_to_howto elf_hppa_info_to_howto
4584 #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4586 /* Stuff for the BFD linker. */
4587 #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4588 #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4589 #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4590 #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4591 #define elf_backend_check_relocs elf32_hppa_check_relocs
4592 #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
4593 #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4594 #define elf_backend_fake_sections elf_hppa_fake_sections
4595 #define elf_backend_relocate_section elf32_hppa_relocate_section
4596 #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4597 #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4598 #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4599 #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4600 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4601 #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4602 #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4603 #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4604 #define elf_backend_object_p elf32_hppa_object_p
4605 #define elf_backend_final_write_processing elf_hppa_final_write_processing
4606 #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4607 #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4608 #define elf_backend_action_discarded elf_hppa_action_discarded
4610 #define elf_backend_can_gc_sections 1
4611 #define elf_backend_can_refcount 1
4612 #define elf_backend_plt_alignment 2
4613 #define elf_backend_want_got_plt 0
4614 #define elf_backend_plt_readonly 0
4615 #define elf_backend_want_plt_sym 0
4616 #define elf_backend_got_header_size 8
4617 #define elf_backend_want_dynrelro 1
4618 #define elf_backend_rela_normal 1
4619 #define elf_backend_dtrel_excludes_plt 1
4620 #define elf_backend_no_page_alias 1
4622 #define TARGET_BIG_SYM hppa_elf32_vec
4623 #define TARGET_BIG_NAME "elf32-hppa"
4624 #define ELF_ARCH bfd_arch_hppa
4625 #define ELF_TARGET_ID HPPA32_ELF_DATA
4626 #define ELF_MACHINE_CODE EM_PARISC
4627 #define ELF_MAXPAGESIZE 0x1000
4628 #define ELF_OSABI ELFOSABI_HPUX
4629 #define elf32_bed elf32_hppa_hpux_bed
4631 #include "elf32-target.h"
4633 #undef TARGET_BIG_SYM
4634 #define TARGET_BIG_SYM hppa_elf32_linux_vec
4635 #undef TARGET_BIG_NAME
4636 #define TARGET_BIG_NAME "elf32-hppa-linux"
4638 #define ELF_OSABI ELFOSABI_GNU
4640 #define elf32_bed elf32_hppa_linux_bed
4642 #include "elf32-target.h"
4644 #undef TARGET_BIG_SYM
4645 #define TARGET_BIG_SYM hppa_elf32_nbsd_vec
4646 #undef TARGET_BIG_NAME
4647 #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4649 #define ELF_OSABI ELFOSABI_NETBSD
4651 #define elf32_bed elf32_hppa_netbsd_bed
4653 #include "elf32-target.h"