1 /* BFD back-end for HP PA-RISC ELF files.
2 Copyright (C) 1990-2016 Free Software Foundation, Inc.
5 Center for Software Science
6 Department of Computer Science
8 Largely rewritten by Alan Modra <alan@linuxcare.com.au>
9 Naming cleanup by Carlos O'Donell <carlos@systemhalted.org>
10 TLS support written by Randolph Chung <tausq@debian.org>
12 This file is part of BFD, the Binary File Descriptor library.
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 3 of the License, or
17 (at your option) any later version.
19 This program is distributed in the hope that it will be useful,
20 but WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 GNU General Public License for more details.
24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
26 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
27 MA 02110-1301, USA. */
35 #include "elf32-hppa.h"
37 #include "elf32-hppa.h"
40 /* In order to gain some understanding of code in this file without
41 knowing all the intricate details of the linker, note the
44 Functions named elf32_hppa_* are called by external routines, other
45 functions are only called locally. elf32_hppa_* functions appear
46 in this file more or less in the order in which they are called
47 from external routines. eg. elf32_hppa_check_relocs is called
48 early in the link process, elf32_hppa_finish_dynamic_sections is
49 one of the last functions. */
51 /* We use two hash tables to hold information for linking PA ELF objects.
53 The first is the elf32_hppa_link_hash_table which is derived
54 from the standard ELF linker hash table. We use this as a place to
55 attach other hash tables and static information.
57 The second is the stub hash table which is derived from the
58 base BFD hash table. The stub hash table holds the information
59 necessary to build the linker stubs during a link.
61 There are a number of different stubs generated by the linker.
69 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
70 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
72 Import stub to call shared library routine from normal object file
73 (single sub-space version)
74 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
75 : ldw RR'lt_ptr+ltoff(%r1),%r21
77 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
79 Import stub to call shared library routine from shared library
80 (single sub-space version)
81 : addil LR'ltoff,%r19 ; get procedure entry point
82 : ldw RR'ltoff(%r1),%r21
84 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
86 Import stub to call shared library routine from normal object file
87 (multiple sub-space support)
88 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
89 : ldw RR'lt_ptr+ltoff(%r1),%r21
90 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
93 : be 0(%sr0,%r21) ; branch to target
94 : stw %rp,-24(%sp) ; save rp
96 Import stub to call shared library routine from shared library
97 (multiple sub-space support)
98 : addil LR'ltoff,%r19 ; get procedure entry point
99 : ldw RR'ltoff(%r1),%r21
100 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
103 : be 0(%sr0,%r21) ; branch to target
104 : stw %rp,-24(%sp) ; save rp
106 Export stub to return from shared lib routine (multiple sub-space support)
107 One of these is created for each exported procedure in a shared
108 library (and stored in the shared lib). Shared lib routines are
109 called via the first instruction in the export stub so that we can
110 do an inter-space return. Not required for single sub-space.
111 : bl,n X,%rp ; trap the return
113 : ldw -24(%sp),%rp ; restore the original rp
116 : be,n 0(%sr0,%rp) ; inter-space return. */
119 /* Variable names follow a coding style.
120 Please follow this (Apps Hungarian) style:
122 Structure/Variable Prefix
123 elf_link_hash_table "etab"
124 elf_link_hash_entry "eh"
126 elf32_hppa_link_hash_table "htab"
127 elf32_hppa_link_hash_entry "hh"
129 bfd_hash_table "btab"
132 bfd_hash_table containing stubs "bstab"
133 elf32_hppa_stub_hash_entry "hsh"
135 elf32_hppa_dyn_reloc_entry "hdh"
137 Always remember to use GNU Coding Style. */
139 #define PLT_ENTRY_SIZE 8
140 #define GOT_ENTRY_SIZE 4
141 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
143 static const bfd_byte plt_stub
[] =
145 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
146 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
147 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
148 #define PLT_STUB_ENTRY (3*4)
149 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
150 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
151 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
152 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
155 /* Section name for stubs is the associated section name plus this
157 #define STUB_SUFFIX ".stub"
159 /* We don't need to copy certain PC- or GP-relative dynamic relocs
160 into a shared object's dynamic section. All the relocs of the
161 limited class we are interested in, are absolute. */
162 #ifndef RELATIVE_DYNRELOCS
163 #define RELATIVE_DYNRELOCS 0
164 #define IS_ABSOLUTE_RELOC(r_type) 1
167 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
168 copying dynamic variables from a shared lib into an app's dynbss
169 section, and instead use a dynamic relocation to point into the
171 #define ELIMINATE_COPY_RELOCS 1
173 enum elf32_hppa_stub_type
175 hppa_stub_long_branch
,
176 hppa_stub_long_branch_shared
,
178 hppa_stub_import_shared
,
183 struct elf32_hppa_stub_hash_entry
185 /* Base hash table entry structure. */
186 struct bfd_hash_entry bh_root
;
188 /* The stub section. */
191 /* Offset within stub_sec of the beginning of this stub. */
194 /* Given the symbol's value and its section we can determine its final
195 value when building the stubs (so the stub knows where to jump. */
196 bfd_vma target_value
;
197 asection
*target_section
;
199 enum elf32_hppa_stub_type stub_type
;
201 /* The symbol table entry, if any, that this was derived from. */
202 struct elf32_hppa_link_hash_entry
*hh
;
204 /* Where this stub is being called from, or, in the case of combined
205 stub sections, the first input section in the group. */
209 struct elf32_hppa_link_hash_entry
211 struct elf_link_hash_entry eh
;
213 /* A pointer to the most recently used stub hash entry against this
215 struct elf32_hppa_stub_hash_entry
*hsh_cache
;
217 /* Used to count relocations for delayed sizing of relocation
219 struct elf32_hppa_dyn_reloc_entry
221 /* Next relocation in the chain. */
222 struct elf32_hppa_dyn_reloc_entry
*hdh_next
;
224 /* The input section of the reloc. */
227 /* Number of relocs copied in this section. */
230 #if RELATIVE_DYNRELOCS
231 /* Number of relative relocs copied for the input section. */
232 bfd_size_type relative_count
;
238 GOT_UNKNOWN
= 0, GOT_NORMAL
= 1, GOT_TLS_GD
= 2, GOT_TLS_LDM
= 4, GOT_TLS_IE
= 8
241 /* Set if this symbol is used by a plabel reloc. */
242 unsigned int plabel
:1;
245 struct elf32_hppa_link_hash_table
247 /* The main hash table. */
248 struct elf_link_hash_table etab
;
250 /* The stub hash table. */
251 struct bfd_hash_table bstab
;
253 /* Linker stub bfd. */
256 /* Linker call-backs. */
257 asection
* (*add_stub_section
) (const char *, asection
*);
258 void (*layout_sections_again
) (void);
260 /* Array to keep track of which stub sections have been created, and
261 information on stub grouping. */
264 /* This is the section to which stubs in the group will be
267 /* The stub section. */
271 /* Assorted information used by elf32_hppa_size_stubs. */
272 unsigned int bfd_count
;
273 unsigned int top_index
;
274 asection
**input_list
;
275 Elf_Internal_Sym
**all_local_syms
;
277 /* Used during a final link to store the base of the text and data
278 segments so that we can perform SEGREL relocations. */
279 bfd_vma text_segment_base
;
280 bfd_vma data_segment_base
;
282 /* Whether we support multiple sub-spaces for shared libs. */
283 unsigned int multi_subspace
:1;
285 /* Flags set when various size branches are detected. Used to
286 select suitable defaults for the stub group size. */
287 unsigned int has_12bit_branch
:1;
288 unsigned int has_17bit_branch
:1;
289 unsigned int has_22bit_branch
:1;
291 /* Set if we need a .plt stub to support lazy dynamic linking. */
292 unsigned int need_plt_stub
:1;
294 /* Small local sym cache. */
295 struct sym_cache sym_cache
;
297 /* Data for LDM relocations. */
300 bfd_signed_vma refcount
;
305 /* Various hash macros and functions. */
306 #define hppa_link_hash_table(p) \
307 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
308 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
310 #define hppa_elf_hash_entry(ent) \
311 ((struct elf32_hppa_link_hash_entry *)(ent))
313 #define hppa_stub_hash_entry(ent) \
314 ((struct elf32_hppa_stub_hash_entry *)(ent))
316 #define hppa_stub_hash_lookup(table, string, create, copy) \
317 ((struct elf32_hppa_stub_hash_entry *) \
318 bfd_hash_lookup ((table), (string), (create), (copy)))
320 #define hppa_elf_local_got_tls_type(abfd) \
321 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
323 #define hh_name(hh) \
324 (hh ? hh->eh.root.root.string : "<undef>")
326 #define eh_name(eh) \
327 (eh ? eh->root.root.string : "<undef>")
329 /* Assorted hash table functions. */
331 /* Initialize an entry in the stub hash table. */
333 static struct bfd_hash_entry
*
334 stub_hash_newfunc (struct bfd_hash_entry
*entry
,
335 struct bfd_hash_table
*table
,
338 /* Allocate the structure if it has not already been allocated by a
342 entry
= bfd_hash_allocate (table
,
343 sizeof (struct elf32_hppa_stub_hash_entry
));
348 /* Call the allocation method of the superclass. */
349 entry
= bfd_hash_newfunc (entry
, table
, string
);
352 struct elf32_hppa_stub_hash_entry
*hsh
;
354 /* Initialize the local fields. */
355 hsh
= hppa_stub_hash_entry (entry
);
356 hsh
->stub_sec
= NULL
;
357 hsh
->stub_offset
= 0;
358 hsh
->target_value
= 0;
359 hsh
->target_section
= NULL
;
360 hsh
->stub_type
= hppa_stub_long_branch
;
368 /* Initialize an entry in the link hash table. */
370 static struct bfd_hash_entry
*
371 hppa_link_hash_newfunc (struct bfd_hash_entry
*entry
,
372 struct bfd_hash_table
*table
,
375 /* Allocate the structure if it has not already been allocated by a
379 entry
= bfd_hash_allocate (table
,
380 sizeof (struct elf32_hppa_link_hash_entry
));
385 /* Call the allocation method of the superclass. */
386 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
389 struct elf32_hppa_link_hash_entry
*hh
;
391 /* Initialize the local fields. */
392 hh
= hppa_elf_hash_entry (entry
);
393 hh
->hsh_cache
= NULL
;
394 hh
->dyn_relocs
= NULL
;
396 hh
->tls_type
= GOT_UNKNOWN
;
402 /* Free the derived linker hash table. */
405 elf32_hppa_link_hash_table_free (bfd
*obfd
)
407 struct elf32_hppa_link_hash_table
*htab
408 = (struct elf32_hppa_link_hash_table
*) obfd
->link
.hash
;
410 bfd_hash_table_free (&htab
->bstab
);
411 _bfd_elf_link_hash_table_free (obfd
);
414 /* Create the derived linker hash table. The PA ELF port uses the derived
415 hash table to keep information specific to the PA ELF linker (without
416 using static variables). */
418 static struct bfd_link_hash_table
*
419 elf32_hppa_link_hash_table_create (bfd
*abfd
)
421 struct elf32_hppa_link_hash_table
*htab
;
422 bfd_size_type amt
= sizeof (*htab
);
424 htab
= bfd_zmalloc (amt
);
428 if (!_bfd_elf_link_hash_table_init (&htab
->etab
, abfd
, hppa_link_hash_newfunc
,
429 sizeof (struct elf32_hppa_link_hash_entry
),
436 /* Init the stub hash table too. */
437 if (!bfd_hash_table_init (&htab
->bstab
, stub_hash_newfunc
,
438 sizeof (struct elf32_hppa_stub_hash_entry
)))
440 _bfd_elf_link_hash_table_free (abfd
);
443 htab
->etab
.root
.hash_table_free
= elf32_hppa_link_hash_table_free
;
445 htab
->text_segment_base
= (bfd_vma
) -1;
446 htab
->data_segment_base
= (bfd_vma
) -1;
447 return &htab
->etab
.root
;
450 /* Initialize the linker stubs BFD so that we can use it for linker
451 created dynamic sections. */
454 elf32_hppa_init_stub_bfd (bfd
*abfd
, struct bfd_link_info
*info
)
456 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
458 elf_elfheader (abfd
)->e_ident
[EI_CLASS
] = ELFCLASS32
;
459 htab
->etab
.dynobj
= abfd
;
462 /* Build a name for an entry in the stub hash table. */
465 hppa_stub_name (const asection
*input_section
,
466 const asection
*sym_sec
,
467 const struct elf32_hppa_link_hash_entry
*hh
,
468 const Elf_Internal_Rela
*rela
)
475 len
= 8 + 1 + strlen (hh_name (hh
)) + 1 + 8 + 1;
476 stub_name
= bfd_malloc (len
);
477 if (stub_name
!= NULL
)
478 sprintf (stub_name
, "%08x_%s+%x",
479 input_section
->id
& 0xffffffff,
481 (int) rela
->r_addend
& 0xffffffff);
485 len
= 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
486 stub_name
= bfd_malloc (len
);
487 if (stub_name
!= NULL
)
488 sprintf (stub_name
, "%08x_%x:%x+%x",
489 input_section
->id
& 0xffffffff,
490 sym_sec
->id
& 0xffffffff,
491 (int) ELF32_R_SYM (rela
->r_info
) & 0xffffffff,
492 (int) rela
->r_addend
& 0xffffffff);
497 /* Look up an entry in the stub hash. Stub entries are cached because
498 creating the stub name takes a bit of time. */
500 static struct elf32_hppa_stub_hash_entry
*
501 hppa_get_stub_entry (const asection
*input_section
,
502 const asection
*sym_sec
,
503 struct elf32_hppa_link_hash_entry
*hh
,
504 const Elf_Internal_Rela
*rela
,
505 struct elf32_hppa_link_hash_table
*htab
)
507 struct elf32_hppa_stub_hash_entry
*hsh_entry
;
508 const asection
*id_sec
;
510 /* If this input section is part of a group of sections sharing one
511 stub section, then use the id of the first section in the group.
512 Stub names need to include a section id, as there may well be
513 more than one stub used to reach say, printf, and we need to
514 distinguish between them. */
515 id_sec
= htab
->stub_group
[input_section
->id
].link_sec
;
517 if (hh
!= NULL
&& hh
->hsh_cache
!= NULL
518 && hh
->hsh_cache
->hh
== hh
519 && hh
->hsh_cache
->id_sec
== id_sec
)
521 hsh_entry
= hh
->hsh_cache
;
527 stub_name
= hppa_stub_name (id_sec
, sym_sec
, hh
, rela
);
528 if (stub_name
== NULL
)
531 hsh_entry
= hppa_stub_hash_lookup (&htab
->bstab
,
532 stub_name
, FALSE
, FALSE
);
534 hh
->hsh_cache
= hsh_entry
;
542 /* Add a new stub entry to the stub hash. Not all fields of the new
543 stub entry are initialised. */
545 static struct elf32_hppa_stub_hash_entry
*
546 hppa_add_stub (const char *stub_name
,
548 struct elf32_hppa_link_hash_table
*htab
)
552 struct elf32_hppa_stub_hash_entry
*hsh
;
554 link_sec
= htab
->stub_group
[section
->id
].link_sec
;
555 stub_sec
= htab
->stub_group
[section
->id
].stub_sec
;
556 if (stub_sec
== NULL
)
558 stub_sec
= htab
->stub_group
[link_sec
->id
].stub_sec
;
559 if (stub_sec
== NULL
)
565 namelen
= strlen (link_sec
->name
);
566 len
= namelen
+ sizeof (STUB_SUFFIX
);
567 s_name
= bfd_alloc (htab
->stub_bfd
, len
);
571 memcpy (s_name
, link_sec
->name
, namelen
);
572 memcpy (s_name
+ namelen
, STUB_SUFFIX
, sizeof (STUB_SUFFIX
));
573 stub_sec
= (*htab
->add_stub_section
) (s_name
, link_sec
);
574 if (stub_sec
== NULL
)
576 htab
->stub_group
[link_sec
->id
].stub_sec
= stub_sec
;
578 htab
->stub_group
[section
->id
].stub_sec
= stub_sec
;
581 /* Enter this entry into the linker stub hash table. */
582 hsh
= hppa_stub_hash_lookup (&htab
->bstab
, stub_name
,
586 /* xgettext:c-format */
587 _bfd_error_handler (_("%B: cannot create stub entry %s"),
588 section
->owner
, stub_name
);
592 hsh
->stub_sec
= stub_sec
;
593 hsh
->stub_offset
= 0;
594 hsh
->id_sec
= link_sec
;
598 /* Determine the type of stub needed, if any, for a call. */
600 static enum elf32_hppa_stub_type
601 hppa_type_of_stub (asection
*input_sec
,
602 const Elf_Internal_Rela
*rela
,
603 struct elf32_hppa_link_hash_entry
*hh
,
605 struct bfd_link_info
*info
)
608 bfd_vma branch_offset
;
609 bfd_vma max_branch_offset
;
613 && hh
->eh
.plt
.offset
!= (bfd_vma
) -1
614 && hh
->eh
.dynindx
!= -1
616 && (bfd_link_pic (info
)
617 || !hh
->eh
.def_regular
618 || hh
->eh
.root
.type
== bfd_link_hash_defweak
))
620 /* We need an import stub. Decide between hppa_stub_import
621 and hppa_stub_import_shared later. */
622 return hppa_stub_import
;
625 /* Determine where the call point is. */
626 location
= (input_sec
->output_offset
627 + input_sec
->output_section
->vma
630 branch_offset
= destination
- location
- 8;
631 r_type
= ELF32_R_TYPE (rela
->r_info
);
633 /* Determine if a long branch stub is needed. parisc branch offsets
634 are relative to the second instruction past the branch, ie. +8
635 bytes on from the branch instruction location. The offset is
636 signed and counts in units of 4 bytes. */
637 if (r_type
== (unsigned int) R_PARISC_PCREL17F
)
638 max_branch_offset
= (1 << (17 - 1)) << 2;
640 else if (r_type
== (unsigned int) R_PARISC_PCREL12F
)
641 max_branch_offset
= (1 << (12 - 1)) << 2;
643 else /* R_PARISC_PCREL22F. */
644 max_branch_offset
= (1 << (22 - 1)) << 2;
646 if (branch_offset
+ max_branch_offset
>= 2*max_branch_offset
)
647 return hppa_stub_long_branch
;
649 return hppa_stub_none
;
652 /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
653 IN_ARG contains the link info pointer. */
655 #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
656 #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
658 #define BL_R1 0xe8200000 /* b,l .+8,%r1 */
659 #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
660 #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
662 #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
663 #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
664 #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
665 #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
667 #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
668 #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
670 #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
671 #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
672 #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
673 #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
675 #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
676 #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
677 #define NOP 0x08000240 /* nop */
678 #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
679 #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
680 #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
687 #define LDW_R1_DLT LDW_R1_R19
689 #define LDW_R1_DLT LDW_R1_DP
693 hppa_build_one_stub (struct bfd_hash_entry
*bh
, void *in_arg
)
695 struct elf32_hppa_stub_hash_entry
*hsh
;
696 struct bfd_link_info
*info
;
697 struct elf32_hppa_link_hash_table
*htab
;
707 /* Massage our args to the form they really have. */
708 hsh
= hppa_stub_hash_entry (bh
);
709 info
= (struct bfd_link_info
*)in_arg
;
711 htab
= hppa_link_hash_table (info
);
715 stub_sec
= hsh
->stub_sec
;
717 /* Make a note of the offset within the stubs for this entry. */
718 hsh
->stub_offset
= stub_sec
->size
;
719 loc
= stub_sec
->contents
+ hsh
->stub_offset
;
721 stub_bfd
= stub_sec
->owner
;
723 switch (hsh
->stub_type
)
725 case hppa_stub_long_branch
:
726 /* Create the long branch. A long branch is formed with "ldil"
727 loading the upper bits of the target address into a register,
728 then branching with "be" which adds in the lower bits.
729 The "be" has its delay slot nullified. */
730 sym_value
= (hsh
->target_value
731 + hsh
->target_section
->output_offset
732 + hsh
->target_section
->output_section
->vma
);
734 val
= hppa_field_adjust (sym_value
, 0, e_lrsel
);
735 insn
= hppa_rebuild_insn ((int) LDIL_R1
, val
, 21);
736 bfd_put_32 (stub_bfd
, insn
, loc
);
738 val
= hppa_field_adjust (sym_value
, 0, e_rrsel
) >> 2;
739 insn
= hppa_rebuild_insn ((int) BE_SR4_R1
, val
, 17);
740 bfd_put_32 (stub_bfd
, insn
, loc
+ 4);
745 case hppa_stub_long_branch_shared
:
746 /* Branches are relative. This is where we are going to. */
747 sym_value
= (hsh
->target_value
748 + hsh
->target_section
->output_offset
749 + hsh
->target_section
->output_section
->vma
);
751 /* And this is where we are coming from, more or less. */
752 sym_value
-= (hsh
->stub_offset
753 + stub_sec
->output_offset
754 + stub_sec
->output_section
->vma
);
756 bfd_put_32 (stub_bfd
, (bfd_vma
) BL_R1
, loc
);
757 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) -8, e_lrsel
);
758 insn
= hppa_rebuild_insn ((int) ADDIL_R1
, val
, 21);
759 bfd_put_32 (stub_bfd
, insn
, loc
+ 4);
761 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) -8, e_rrsel
) >> 2;
762 insn
= hppa_rebuild_insn ((int) BE_SR4_R1
, val
, 17);
763 bfd_put_32 (stub_bfd
, insn
, loc
+ 8);
767 case hppa_stub_import
:
768 case hppa_stub_import_shared
:
769 off
= hsh
->hh
->eh
.plt
.offset
;
770 if (off
>= (bfd_vma
) -2)
773 off
&= ~ (bfd_vma
) 1;
775 + htab
->etab
.splt
->output_offset
776 + htab
->etab
.splt
->output_section
->vma
777 - elf_gp (htab
->etab
.splt
->output_section
->owner
));
781 if (hsh
->stub_type
== hppa_stub_import_shared
)
784 val
= hppa_field_adjust (sym_value
, 0, e_lrsel
),
785 insn
= hppa_rebuild_insn ((int) insn
, val
, 21);
786 bfd_put_32 (stub_bfd
, insn
, loc
);
788 /* It is critical to use lrsel/rrsel here because we are using
789 two different offsets (+0 and +4) from sym_value. If we use
790 lsel/rsel then with unfortunate sym_values we will round
791 sym_value+4 up to the next 2k block leading to a mis-match
792 between the lsel and rsel value. */
793 val
= hppa_field_adjust (sym_value
, 0, e_rrsel
);
794 insn
= hppa_rebuild_insn ((int) LDW_R1_R21
, val
, 14);
795 bfd_put_32 (stub_bfd
, insn
, loc
+ 4);
797 if (htab
->multi_subspace
)
799 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) 4, e_rrsel
);
800 insn
= hppa_rebuild_insn ((int) LDW_R1_DLT
, val
, 14);
801 bfd_put_32 (stub_bfd
, insn
, loc
+ 8);
803 bfd_put_32 (stub_bfd
, (bfd_vma
) LDSID_R21_R1
, loc
+ 12);
804 bfd_put_32 (stub_bfd
, (bfd_vma
) MTSP_R1
, loc
+ 16);
805 bfd_put_32 (stub_bfd
, (bfd_vma
) BE_SR0_R21
, loc
+ 20);
806 bfd_put_32 (stub_bfd
, (bfd_vma
) STW_RP
, loc
+ 24);
812 bfd_put_32 (stub_bfd
, (bfd_vma
) BV_R0_R21
, loc
+ 8);
813 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) 4, e_rrsel
);
814 insn
= hppa_rebuild_insn ((int) LDW_R1_DLT
, val
, 14);
815 bfd_put_32 (stub_bfd
, insn
, loc
+ 12);
822 case hppa_stub_export
:
823 /* Branches are relative. This is where we are going to. */
824 sym_value
= (hsh
->target_value
825 + hsh
->target_section
->output_offset
826 + hsh
->target_section
->output_section
->vma
);
828 /* And this is where we are coming from. */
829 sym_value
-= (hsh
->stub_offset
830 + stub_sec
->output_offset
831 + stub_sec
->output_section
->vma
);
833 if (sym_value
- 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
834 && (!htab
->has_22bit_branch
835 || sym_value
- 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
838 /* xgettext:c-format */
839 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
840 hsh
->target_section
->owner
,
842 (long) hsh
->stub_offset
,
843 hsh
->bh_root
.string
);
844 bfd_set_error (bfd_error_bad_value
);
848 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) -8, e_fsel
) >> 2;
849 if (!htab
->has_22bit_branch
)
850 insn
= hppa_rebuild_insn ((int) BL_RP
, val
, 17);
852 insn
= hppa_rebuild_insn ((int) BL22_RP
, val
, 22);
853 bfd_put_32 (stub_bfd
, insn
, loc
);
855 bfd_put_32 (stub_bfd
, (bfd_vma
) NOP
, loc
+ 4);
856 bfd_put_32 (stub_bfd
, (bfd_vma
) LDW_RP
, loc
+ 8);
857 bfd_put_32 (stub_bfd
, (bfd_vma
) LDSID_RP_R1
, loc
+ 12);
858 bfd_put_32 (stub_bfd
, (bfd_vma
) MTSP_R1
, loc
+ 16);
859 bfd_put_32 (stub_bfd
, (bfd_vma
) BE_SR0_RP
, loc
+ 20);
861 /* Point the function symbol at the stub. */
862 hsh
->hh
->eh
.root
.u
.def
.section
= stub_sec
;
863 hsh
->hh
->eh
.root
.u
.def
.value
= stub_sec
->size
;
873 stub_sec
->size
+= size
;
898 /* As above, but don't actually build the stub. Just bump offset so
899 we know stub section sizes. */
902 hppa_size_one_stub (struct bfd_hash_entry
*bh
, void *in_arg
)
904 struct elf32_hppa_stub_hash_entry
*hsh
;
905 struct elf32_hppa_link_hash_table
*htab
;
908 /* Massage our args to the form they really have. */
909 hsh
= hppa_stub_hash_entry (bh
);
912 if (hsh
->stub_type
== hppa_stub_long_branch
)
914 else if (hsh
->stub_type
== hppa_stub_long_branch_shared
)
916 else if (hsh
->stub_type
== hppa_stub_export
)
918 else /* hppa_stub_import or hppa_stub_import_shared. */
920 if (htab
->multi_subspace
)
926 hsh
->stub_sec
->size
+= size
;
930 /* Return nonzero if ABFD represents an HPPA ELF32 file.
931 Additionally we set the default architecture and machine. */
934 elf32_hppa_object_p (bfd
*abfd
)
936 Elf_Internal_Ehdr
* i_ehdrp
;
939 i_ehdrp
= elf_elfheader (abfd
);
940 if (strcmp (bfd_get_target (abfd
), "elf32-hppa-linux") == 0)
942 /* GCC on hppa-linux produces binaries with OSABI=GNU,
943 but the kernel produces corefiles with OSABI=SysV. */
944 if (i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_GNU
&&
945 i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_NONE
) /* aka SYSV */
948 else if (strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") == 0)
950 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
951 but the kernel produces corefiles with OSABI=SysV. */
952 if (i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_NETBSD
&&
953 i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_NONE
) /* aka SYSV */
958 if (i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_HPUX
)
962 flags
= i_ehdrp
->e_flags
;
963 switch (flags
& (EF_PARISC_ARCH
| EF_PARISC_WIDE
))
966 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 10);
968 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 11);
970 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 20);
971 case EFA_PARISC_2_0
| EF_PARISC_WIDE
:
972 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 25);
977 /* Create the .plt and .got sections, and set up our hash table
978 short-cuts to various dynamic sections. */
981 elf32_hppa_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
983 struct elf32_hppa_link_hash_table
*htab
;
984 struct elf_link_hash_entry
*eh
;
986 /* Don't try to create the .plt and .got twice. */
987 htab
= hppa_link_hash_table (info
);
990 if (htab
->etab
.splt
!= NULL
)
993 /* Call the generic code to do most of the work. */
994 if (! _bfd_elf_create_dynamic_sections (abfd
, info
))
997 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
998 application, because __canonicalize_funcptr_for_compare needs it. */
999 eh
= elf_hash_table (info
)->hgot
;
1000 eh
->forced_local
= 0;
1001 eh
->other
= STV_DEFAULT
;
1002 return bfd_elf_link_record_dynamic_symbol (info
, eh
);
1005 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1008 elf32_hppa_copy_indirect_symbol (struct bfd_link_info
*info
,
1009 struct elf_link_hash_entry
*eh_dir
,
1010 struct elf_link_hash_entry
*eh_ind
)
1012 struct elf32_hppa_link_hash_entry
*hh_dir
, *hh_ind
;
1014 hh_dir
= hppa_elf_hash_entry (eh_dir
);
1015 hh_ind
= hppa_elf_hash_entry (eh_ind
);
1017 if (hh_ind
->dyn_relocs
!= NULL
)
1019 if (hh_dir
->dyn_relocs
!= NULL
)
1021 struct elf32_hppa_dyn_reloc_entry
**hdh_pp
;
1022 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1024 /* Add reloc counts against the indirect sym to the direct sym
1025 list. Merge any entries against the same section. */
1026 for (hdh_pp
= &hh_ind
->dyn_relocs
; (hdh_p
= *hdh_pp
) != NULL
; )
1028 struct elf32_hppa_dyn_reloc_entry
*hdh_q
;
1030 for (hdh_q
= hh_dir
->dyn_relocs
;
1032 hdh_q
= hdh_q
->hdh_next
)
1033 if (hdh_q
->sec
== hdh_p
->sec
)
1035 #if RELATIVE_DYNRELOCS
1036 hdh_q
->relative_count
+= hdh_p
->relative_count
;
1038 hdh_q
->count
+= hdh_p
->count
;
1039 *hdh_pp
= hdh_p
->hdh_next
;
1043 hdh_pp
= &hdh_p
->hdh_next
;
1045 *hdh_pp
= hh_dir
->dyn_relocs
;
1048 hh_dir
->dyn_relocs
= hh_ind
->dyn_relocs
;
1049 hh_ind
->dyn_relocs
= NULL
;
1052 if (ELIMINATE_COPY_RELOCS
1053 && eh_ind
->root
.type
!= bfd_link_hash_indirect
1054 && eh_dir
->dynamic_adjusted
)
1056 /* If called to transfer flags for a weakdef during processing
1057 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1058 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
1059 eh_dir
->ref_dynamic
|= eh_ind
->ref_dynamic
;
1060 eh_dir
->ref_regular
|= eh_ind
->ref_regular
;
1061 eh_dir
->ref_regular_nonweak
|= eh_ind
->ref_regular_nonweak
;
1062 eh_dir
->needs_plt
|= eh_ind
->needs_plt
;
1066 if (eh_ind
->root
.type
== bfd_link_hash_indirect
1067 && eh_dir
->got
.refcount
<= 0)
1069 hh_dir
->tls_type
= hh_ind
->tls_type
;
1070 hh_ind
->tls_type
= GOT_UNKNOWN
;
1073 _bfd_elf_link_hash_copy_indirect (info
, eh_dir
, eh_ind
);
1078 elf32_hppa_optimized_tls_reloc (struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
1079 int r_type
, int is_local ATTRIBUTE_UNUSED
)
1081 /* For now we don't support linker optimizations. */
1085 /* Return a pointer to the local GOT, PLT and TLS reference counts
1086 for ABFD. Returns NULL if the storage allocation fails. */
1088 static bfd_signed_vma
*
1089 hppa32_elf_local_refcounts (bfd
*abfd
)
1091 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1092 bfd_signed_vma
*local_refcounts
;
1094 local_refcounts
= elf_local_got_refcounts (abfd
);
1095 if (local_refcounts
== NULL
)
1099 /* Allocate space for local GOT and PLT reference
1100 counts. Done this way to save polluting elf_obj_tdata
1101 with another target specific pointer. */
1102 size
= symtab_hdr
->sh_info
;
1103 size
*= 2 * sizeof (bfd_signed_vma
);
1104 /* Add in space to store the local GOT TLS types. */
1105 size
+= symtab_hdr
->sh_info
;
1106 local_refcounts
= bfd_zalloc (abfd
, size
);
1107 if (local_refcounts
== NULL
)
1109 elf_local_got_refcounts (abfd
) = local_refcounts
;
1110 memset (hppa_elf_local_got_tls_type (abfd
), GOT_UNKNOWN
,
1111 symtab_hdr
->sh_info
);
1113 return local_refcounts
;
1117 /* Look through the relocs for a section during the first phase, and
1118 calculate needed space in the global offset table, procedure linkage
1119 table, and dynamic reloc sections. At this point we haven't
1120 necessarily read all the input files. */
1123 elf32_hppa_check_relocs (bfd
*abfd
,
1124 struct bfd_link_info
*info
,
1126 const Elf_Internal_Rela
*relocs
)
1128 Elf_Internal_Shdr
*symtab_hdr
;
1129 struct elf_link_hash_entry
**eh_syms
;
1130 const Elf_Internal_Rela
*rela
;
1131 const Elf_Internal_Rela
*rela_end
;
1132 struct elf32_hppa_link_hash_table
*htab
;
1134 int tls_type
= GOT_UNKNOWN
, old_tls_type
= GOT_UNKNOWN
;
1136 if (bfd_link_relocatable (info
))
1139 htab
= hppa_link_hash_table (info
);
1142 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1143 eh_syms
= elf_sym_hashes (abfd
);
1146 rela_end
= relocs
+ sec
->reloc_count
;
1147 for (rela
= relocs
; rela
< rela_end
; rela
++)
1156 unsigned int r_symndx
, r_type
;
1157 struct elf32_hppa_link_hash_entry
*hh
;
1160 r_symndx
= ELF32_R_SYM (rela
->r_info
);
1162 if (r_symndx
< symtab_hdr
->sh_info
)
1166 hh
= hppa_elf_hash_entry (eh_syms
[r_symndx
- symtab_hdr
->sh_info
]);
1167 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
1168 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
1169 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
1171 /* PR15323, ref flags aren't set for references in the same
1173 hh
->eh
.root
.non_ir_ref
= 1;
1176 r_type
= ELF32_R_TYPE (rela
->r_info
);
1177 r_type
= elf32_hppa_optimized_tls_reloc (info
, r_type
, hh
== NULL
);
1181 case R_PARISC_DLTIND14F
:
1182 case R_PARISC_DLTIND14R
:
1183 case R_PARISC_DLTIND21L
:
1184 /* This symbol requires a global offset table entry. */
1185 need_entry
= NEED_GOT
;
1188 case R_PARISC_PLABEL14R
: /* "Official" procedure labels. */
1189 case R_PARISC_PLABEL21L
:
1190 case R_PARISC_PLABEL32
:
1191 /* If the addend is non-zero, we break badly. */
1192 if (rela
->r_addend
!= 0)
1195 /* If we are creating a shared library, then we need to
1196 create a PLT entry for all PLABELs, because PLABELs with
1197 local symbols may be passed via a pointer to another
1198 object. Additionally, output a dynamic relocation
1199 pointing to the PLT entry.
1201 For executables, the original 32-bit ABI allowed two
1202 different styles of PLABELs (function pointers): For
1203 global functions, the PLABEL word points into the .plt
1204 two bytes past a (function address, gp) pair, and for
1205 local functions the PLABEL points directly at the
1206 function. The magic +2 for the first type allows us to
1207 differentiate between the two. As you can imagine, this
1208 is a real pain when it comes to generating code to call
1209 functions indirectly or to compare function pointers.
1210 We avoid the mess by always pointing a PLABEL into the
1211 .plt, even for local functions. */
1212 need_entry
= PLT_PLABEL
| NEED_PLT
| NEED_DYNREL
;
1215 case R_PARISC_PCREL12F
:
1216 htab
->has_12bit_branch
= 1;
1219 case R_PARISC_PCREL17C
:
1220 case R_PARISC_PCREL17F
:
1221 htab
->has_17bit_branch
= 1;
1224 case R_PARISC_PCREL22F
:
1225 htab
->has_22bit_branch
= 1;
1227 /* Function calls might need to go through the .plt, and
1228 might require long branch stubs. */
1231 /* We know local syms won't need a .plt entry, and if
1232 they need a long branch stub we can't guarantee that
1233 we can reach the stub. So just flag an error later
1234 if we're doing a shared link and find we need a long
1240 /* Global symbols will need a .plt entry if they remain
1241 global, and in most cases won't need a long branch
1242 stub. Unfortunately, we have to cater for the case
1243 where a symbol is forced local by versioning, or due
1244 to symbolic linking, and we lose the .plt entry. */
1245 need_entry
= NEED_PLT
;
1246 if (hh
->eh
.type
== STT_PARISC_MILLI
)
1251 case R_PARISC_SEGBASE
: /* Used to set segment base. */
1252 case R_PARISC_SEGREL32
: /* Relative reloc, used for unwind. */
1253 case R_PARISC_PCREL14F
: /* PC relative load/store. */
1254 case R_PARISC_PCREL14R
:
1255 case R_PARISC_PCREL17R
: /* External branches. */
1256 case R_PARISC_PCREL21L
: /* As above, and for load/store too. */
1257 case R_PARISC_PCREL32
:
1258 /* We don't need to propagate the relocation if linking a
1259 shared object since these are section relative. */
1262 case R_PARISC_DPREL14F
: /* Used for gp rel data load/store. */
1263 case R_PARISC_DPREL14R
:
1264 case R_PARISC_DPREL21L
:
1265 if (bfd_link_pic (info
))
1268 /* xgettext:c-format */
1269 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1271 elf_hppa_howto_table
[r_type
].name
);
1272 bfd_set_error (bfd_error_bad_value
);
1277 case R_PARISC_DIR17F
: /* Used for external branches. */
1278 case R_PARISC_DIR17R
:
1279 case R_PARISC_DIR14F
: /* Used for load/store from absolute locn. */
1280 case R_PARISC_DIR14R
:
1281 case R_PARISC_DIR21L
: /* As above, and for ext branches too. */
1282 case R_PARISC_DIR32
: /* .word relocs. */
1283 /* We may want to output a dynamic relocation later. */
1284 need_entry
= NEED_DYNREL
;
1287 /* This relocation describes the C++ object vtable hierarchy.
1288 Reconstruct it for later use during GC. */
1289 case R_PARISC_GNU_VTINHERIT
:
1290 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, &hh
->eh
, rela
->r_offset
))
1294 /* This relocation describes which C++ vtable entries are actually
1295 used. Record for later use during GC. */
1296 case R_PARISC_GNU_VTENTRY
:
1297 BFD_ASSERT (hh
!= NULL
);
1299 && !bfd_elf_gc_record_vtentry (abfd
, sec
, &hh
->eh
, rela
->r_addend
))
1303 case R_PARISC_TLS_GD21L
:
1304 case R_PARISC_TLS_GD14R
:
1305 case R_PARISC_TLS_LDM21L
:
1306 case R_PARISC_TLS_LDM14R
:
1307 need_entry
= NEED_GOT
;
1310 case R_PARISC_TLS_IE21L
:
1311 case R_PARISC_TLS_IE14R
:
1312 if (bfd_link_pic (info
))
1313 info
->flags
|= DF_STATIC_TLS
;
1314 need_entry
= NEED_GOT
;
1321 /* Now carry out our orders. */
1322 if (need_entry
& NEED_GOT
)
1327 tls_type
= GOT_NORMAL
;
1329 case R_PARISC_TLS_GD21L
:
1330 case R_PARISC_TLS_GD14R
:
1331 tls_type
|= GOT_TLS_GD
;
1333 case R_PARISC_TLS_LDM21L
:
1334 case R_PARISC_TLS_LDM14R
:
1335 tls_type
|= GOT_TLS_LDM
;
1337 case R_PARISC_TLS_IE21L
:
1338 case R_PARISC_TLS_IE14R
:
1339 tls_type
|= GOT_TLS_IE
;
1343 /* Allocate space for a GOT entry, as well as a dynamic
1344 relocation for this entry. */
1345 if (htab
->etab
.sgot
== NULL
)
1347 if (!elf32_hppa_create_dynamic_sections (htab
->etab
.dynobj
, info
))
1351 if (r_type
== R_PARISC_TLS_LDM21L
1352 || r_type
== R_PARISC_TLS_LDM14R
)
1353 htab
->tls_ldm_got
.refcount
+= 1;
1358 hh
->eh
.got
.refcount
+= 1;
1359 old_tls_type
= hh
->tls_type
;
1363 bfd_signed_vma
*local_got_refcounts
;
1365 /* This is a global offset table entry for a local symbol. */
1366 local_got_refcounts
= hppa32_elf_local_refcounts (abfd
);
1367 if (local_got_refcounts
== NULL
)
1369 local_got_refcounts
[r_symndx
] += 1;
1371 old_tls_type
= hppa_elf_local_got_tls_type (abfd
) [r_symndx
];
1374 tls_type
|= old_tls_type
;
1376 if (old_tls_type
!= tls_type
)
1379 hh
->tls_type
= tls_type
;
1381 hppa_elf_local_got_tls_type (abfd
) [r_symndx
] = tls_type
;
1387 if (need_entry
& NEED_PLT
)
1389 /* If we are creating a shared library, and this is a reloc
1390 against a weak symbol or a global symbol in a dynamic
1391 object, then we will be creating an import stub and a
1392 .plt entry for the symbol. Similarly, on a normal link
1393 to symbols defined in a dynamic object we'll need the
1394 import stub and a .plt entry. We don't know yet whether
1395 the symbol is defined or not, so make an entry anyway and
1396 clean up later in adjust_dynamic_symbol. */
1397 if ((sec
->flags
& SEC_ALLOC
) != 0)
1401 hh
->eh
.needs_plt
= 1;
1402 hh
->eh
.plt
.refcount
+= 1;
1404 /* If this .plt entry is for a plabel, mark it so
1405 that adjust_dynamic_symbol will keep the entry
1406 even if it appears to be local. */
1407 if (need_entry
& PLT_PLABEL
)
1410 else if (need_entry
& PLT_PLABEL
)
1412 bfd_signed_vma
*local_got_refcounts
;
1413 bfd_signed_vma
*local_plt_refcounts
;
1415 local_got_refcounts
= hppa32_elf_local_refcounts (abfd
);
1416 if (local_got_refcounts
== NULL
)
1418 local_plt_refcounts
= (local_got_refcounts
1419 + symtab_hdr
->sh_info
);
1420 local_plt_refcounts
[r_symndx
] += 1;
1425 if (need_entry
& NEED_DYNREL
)
1427 /* Flag this symbol as having a non-got, non-plt reference
1428 so that we generate copy relocs if it turns out to be
1430 if (hh
!= NULL
&& !bfd_link_pic (info
))
1431 hh
->eh
.non_got_ref
= 1;
1433 /* If we are creating a shared library then we need to copy
1434 the reloc into the shared library. However, if we are
1435 linking with -Bsymbolic, we need only copy absolute
1436 relocs or relocs against symbols that are not defined in
1437 an object we are including in the link. PC- or DP- or
1438 DLT-relative relocs against any local sym or global sym
1439 with DEF_REGULAR set, can be discarded. At this point we
1440 have not seen all the input files, so it is possible that
1441 DEF_REGULAR is not set now but will be set later (it is
1442 never cleared). We account for that possibility below by
1443 storing information in the dyn_relocs field of the
1446 A similar situation to the -Bsymbolic case occurs when
1447 creating shared libraries and symbol visibility changes
1448 render the symbol local.
1450 As it turns out, all the relocs we will be creating here
1451 are absolute, so we cannot remove them on -Bsymbolic
1452 links or visibility changes anyway. A STUB_REL reloc
1453 is absolute too, as in that case it is the reloc in the
1454 stub we will be creating, rather than copying the PCREL
1455 reloc in the branch.
1457 If on the other hand, we are creating an executable, we
1458 may need to keep relocations for symbols satisfied by a
1459 dynamic library if we manage to avoid copy relocs for the
1461 if ((bfd_link_pic (info
)
1462 && (sec
->flags
& SEC_ALLOC
) != 0
1463 && (IS_ABSOLUTE_RELOC (r_type
)
1465 && (!SYMBOLIC_BIND (info
, &hh
->eh
)
1466 || hh
->eh
.root
.type
== bfd_link_hash_defweak
1467 || !hh
->eh
.def_regular
))))
1468 || (ELIMINATE_COPY_RELOCS
1469 && !bfd_link_pic (info
)
1470 && (sec
->flags
& SEC_ALLOC
) != 0
1472 && (hh
->eh
.root
.type
== bfd_link_hash_defweak
1473 || !hh
->eh
.def_regular
)))
1475 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1476 struct elf32_hppa_dyn_reloc_entry
**hdh_head
;
1478 /* Create a reloc section in dynobj and make room for
1482 sreloc
= _bfd_elf_make_dynamic_reloc_section
1483 (sec
, htab
->etab
.dynobj
, 2, abfd
, /*rela?*/ TRUE
);
1487 bfd_set_error (bfd_error_bad_value
);
1492 /* If this is a global symbol, we count the number of
1493 relocations we need for this symbol. */
1496 hdh_head
= &hh
->dyn_relocs
;
1500 /* Track dynamic relocs needed for local syms too.
1501 We really need local syms available to do this
1505 Elf_Internal_Sym
*isym
;
1507 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
1512 sr
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
1516 vpp
= &elf_section_data (sr
)->local_dynrel
;
1517 hdh_head
= (struct elf32_hppa_dyn_reloc_entry
**) vpp
;
1521 if (hdh_p
== NULL
|| hdh_p
->sec
!= sec
)
1523 hdh_p
= bfd_alloc (htab
->etab
.dynobj
, sizeof *hdh_p
);
1526 hdh_p
->hdh_next
= *hdh_head
;
1530 #if RELATIVE_DYNRELOCS
1531 hdh_p
->relative_count
= 0;
1536 #if RELATIVE_DYNRELOCS
1537 if (!IS_ABSOLUTE_RELOC (rtype
))
1538 hdh_p
->relative_count
+= 1;
1547 /* Return the section that should be marked against garbage collection
1548 for a given relocation. */
1551 elf32_hppa_gc_mark_hook (asection
*sec
,
1552 struct bfd_link_info
*info
,
1553 Elf_Internal_Rela
*rela
,
1554 struct elf_link_hash_entry
*hh
,
1555 Elf_Internal_Sym
*sym
)
1558 switch ((unsigned int) ELF32_R_TYPE (rela
->r_info
))
1560 case R_PARISC_GNU_VTINHERIT
:
1561 case R_PARISC_GNU_VTENTRY
:
1565 return _bfd_elf_gc_mark_hook (sec
, info
, rela
, hh
, sym
);
1568 /* Update the got and plt entry reference counts for the section being
1572 elf32_hppa_gc_sweep_hook (bfd
*abfd
,
1573 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
1575 const Elf_Internal_Rela
*relocs
)
1577 Elf_Internal_Shdr
*symtab_hdr
;
1578 struct elf_link_hash_entry
**eh_syms
;
1579 bfd_signed_vma
*local_got_refcounts
;
1580 bfd_signed_vma
*local_plt_refcounts
;
1581 const Elf_Internal_Rela
*rela
, *relend
;
1582 struct elf32_hppa_link_hash_table
*htab
;
1584 if (bfd_link_relocatable (info
))
1587 htab
= hppa_link_hash_table (info
);
1591 elf_section_data (sec
)->local_dynrel
= NULL
;
1593 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1594 eh_syms
= elf_sym_hashes (abfd
);
1595 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1596 local_plt_refcounts
= local_got_refcounts
;
1597 if (local_plt_refcounts
!= NULL
)
1598 local_plt_refcounts
+= symtab_hdr
->sh_info
;
1600 relend
= relocs
+ sec
->reloc_count
;
1601 for (rela
= relocs
; rela
< relend
; rela
++)
1603 unsigned long r_symndx
;
1604 unsigned int r_type
;
1605 struct elf_link_hash_entry
*eh
= NULL
;
1607 r_symndx
= ELF32_R_SYM (rela
->r_info
);
1608 if (r_symndx
>= symtab_hdr
->sh_info
)
1610 struct elf32_hppa_link_hash_entry
*hh
;
1611 struct elf32_hppa_dyn_reloc_entry
**hdh_pp
;
1612 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1614 eh
= eh_syms
[r_symndx
- symtab_hdr
->sh_info
];
1615 while (eh
->root
.type
== bfd_link_hash_indirect
1616 || eh
->root
.type
== bfd_link_hash_warning
)
1617 eh
= (struct elf_link_hash_entry
*) eh
->root
.u
.i
.link
;
1618 hh
= hppa_elf_hash_entry (eh
);
1620 for (hdh_pp
= &hh
->dyn_relocs
; (hdh_p
= *hdh_pp
) != NULL
; hdh_pp
= &hdh_p
->hdh_next
)
1621 if (hdh_p
->sec
== sec
)
1623 /* Everything must go for SEC. */
1624 *hdh_pp
= hdh_p
->hdh_next
;
1629 r_type
= ELF32_R_TYPE (rela
->r_info
);
1630 r_type
= elf32_hppa_optimized_tls_reloc (info
, r_type
, eh
!= NULL
);
1634 case R_PARISC_DLTIND14F
:
1635 case R_PARISC_DLTIND14R
:
1636 case R_PARISC_DLTIND21L
:
1637 case R_PARISC_TLS_GD21L
:
1638 case R_PARISC_TLS_GD14R
:
1639 case R_PARISC_TLS_IE21L
:
1640 case R_PARISC_TLS_IE14R
:
1643 if (eh
->got
.refcount
> 0)
1644 eh
->got
.refcount
-= 1;
1646 else if (local_got_refcounts
!= NULL
)
1648 if (local_got_refcounts
[r_symndx
] > 0)
1649 local_got_refcounts
[r_symndx
] -= 1;
1653 case R_PARISC_TLS_LDM21L
:
1654 case R_PARISC_TLS_LDM14R
:
1655 htab
->tls_ldm_got
.refcount
-= 1;
1658 case R_PARISC_PCREL12F
:
1659 case R_PARISC_PCREL17C
:
1660 case R_PARISC_PCREL17F
:
1661 case R_PARISC_PCREL22F
:
1664 if (eh
->plt
.refcount
> 0)
1665 eh
->plt
.refcount
-= 1;
1669 case R_PARISC_PLABEL14R
:
1670 case R_PARISC_PLABEL21L
:
1671 case R_PARISC_PLABEL32
:
1674 if (eh
->plt
.refcount
> 0)
1675 eh
->plt
.refcount
-= 1;
1677 else if (local_plt_refcounts
!= NULL
)
1679 if (local_plt_refcounts
[r_symndx
] > 0)
1680 local_plt_refcounts
[r_symndx
] -= 1;
1692 /* Support for core dump NOTE sections. */
1695 elf32_hppa_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
1700 switch (note
->descsz
)
1705 case 396: /* Linux/hppa */
1707 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
1710 elf_tdata (abfd
)->core
->lwpid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
1719 /* Make a ".reg/999" section. */
1720 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
1721 size
, note
->descpos
+ offset
);
1725 elf32_hppa_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
1727 switch (note
->descsz
)
1732 case 124: /* Linux/hppa elf_prpsinfo. */
1733 elf_tdata (abfd
)->core
->program
1734 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
1735 elf_tdata (abfd
)->core
->command
1736 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
1739 /* Note that for some reason, a spurious space is tacked
1740 onto the end of the args in some (at least one anyway)
1741 implementations, so strip it off if it exists. */
1743 char *command
= elf_tdata (abfd
)->core
->command
;
1744 int n
= strlen (command
);
1746 if (0 < n
&& command
[n
- 1] == ' ')
1747 command
[n
- 1] = '\0';
1753 /* Our own version of hide_symbol, so that we can keep plt entries for
1757 elf32_hppa_hide_symbol (struct bfd_link_info
*info
,
1758 struct elf_link_hash_entry
*eh
,
1759 bfd_boolean force_local
)
1763 eh
->forced_local
= 1;
1764 if (eh
->dynindx
!= -1)
1767 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
1771 /* PR 16082: Remove version information from hidden symbol. */
1772 eh
->verinfo
.verdef
= NULL
;
1773 eh
->verinfo
.vertree
= NULL
;
1776 /* STT_GNU_IFUNC symbol must go through PLT. */
1777 if (! hppa_elf_hash_entry (eh
)->plabel
1778 && eh
->type
!= STT_GNU_IFUNC
)
1781 eh
->plt
= elf_hash_table (info
)->init_plt_offset
;
1785 /* Adjust a symbol defined by a dynamic object and referenced by a
1786 regular object. The current definition is in some section of the
1787 dynamic object, but we're not including those sections. We have to
1788 change the definition to something the rest of the link can
1792 elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info
*info
,
1793 struct elf_link_hash_entry
*eh
)
1795 struct elf32_hppa_link_hash_table
*htab
;
1798 /* If this is a function, put it in the procedure linkage table. We
1799 will fill in the contents of the procedure linkage table later. */
1800 if (eh
->type
== STT_FUNC
1803 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1804 The refcounts are not reliable when it has been hidden since
1805 hide_symbol can be called before the plabel flag is set. */
1806 if (hppa_elf_hash_entry (eh
)->plabel
1807 && eh
->plt
.refcount
<= 0)
1808 eh
->plt
.refcount
= 1;
1810 if (eh
->plt
.refcount
<= 0
1812 && eh
->root
.type
!= bfd_link_hash_defweak
1813 && ! hppa_elf_hash_entry (eh
)->plabel
1814 && (!bfd_link_pic (info
) || SYMBOLIC_BIND (info
, eh
))))
1816 /* The .plt entry is not needed when:
1817 a) Garbage collection has removed all references to the
1819 b) We know for certain the symbol is defined in this
1820 object, and it's not a weak definition, nor is the symbol
1821 used by a plabel relocation. Either this object is the
1822 application or we are doing a shared symbolic link. */
1824 eh
->plt
.offset
= (bfd_vma
) -1;
1831 eh
->plt
.offset
= (bfd_vma
) -1;
1833 /* If this is a weak symbol, and there is a real definition, the
1834 processor independent code will have arranged for us to see the
1835 real definition first, and we can just use the same value. */
1836 if (eh
->u
.weakdef
!= NULL
)
1838 if (eh
->u
.weakdef
->root
.type
!= bfd_link_hash_defined
1839 && eh
->u
.weakdef
->root
.type
!= bfd_link_hash_defweak
)
1841 eh
->root
.u
.def
.section
= eh
->u
.weakdef
->root
.u
.def
.section
;
1842 eh
->root
.u
.def
.value
= eh
->u
.weakdef
->root
.u
.def
.value
;
1843 if (ELIMINATE_COPY_RELOCS
)
1844 eh
->non_got_ref
= eh
->u
.weakdef
->non_got_ref
;
1848 /* This is a reference to a symbol defined by a dynamic object which
1849 is not a function. */
1851 /* If we are creating a shared library, we must presume that the
1852 only references to the symbol are via the global offset table.
1853 For such cases we need not do anything here; the relocations will
1854 be handled correctly by relocate_section. */
1855 if (bfd_link_pic (info
))
1858 /* If there are no references to this symbol that do not use the
1859 GOT, we don't need to generate a copy reloc. */
1860 if (!eh
->non_got_ref
)
1863 if (ELIMINATE_COPY_RELOCS
)
1865 struct elf32_hppa_link_hash_entry
*hh
;
1866 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1868 hh
= hppa_elf_hash_entry (eh
);
1869 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
1871 sec
= hdh_p
->sec
->output_section
;
1872 if (sec
!= NULL
&& (sec
->flags
& SEC_READONLY
) != 0)
1876 /* If we didn't find any dynamic relocs in read-only sections, then
1877 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1880 eh
->non_got_ref
= 0;
1885 /* We must allocate the symbol in our .dynbss section, which will
1886 become part of the .bss section of the executable. There will be
1887 an entry for this symbol in the .dynsym section. The dynamic
1888 object will contain position independent code, so all references
1889 from the dynamic object to this symbol will go through the global
1890 offset table. The dynamic linker will use the .dynsym entry to
1891 determine the address it must put in the global offset table, so
1892 both the dynamic object and the regular object will refer to the
1893 same memory location for the variable. */
1895 htab
= hppa_link_hash_table (info
);
1899 /* We must generate a COPY reloc to tell the dynamic linker to
1900 copy the initial value out of the dynamic object and into the
1901 runtime process image. */
1902 if ((eh
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && eh
->size
!= 0)
1904 htab
->etab
.srelbss
->size
+= sizeof (Elf32_External_Rela
);
1908 sec
= htab
->etab
.sdynbss
;
1910 return _bfd_elf_adjust_dynamic_copy (info
, eh
, sec
);
1913 /* Allocate space in the .plt for entries that won't have relocations.
1914 ie. plabel entries. */
1917 allocate_plt_static (struct elf_link_hash_entry
*eh
, void *inf
)
1919 struct bfd_link_info
*info
;
1920 struct elf32_hppa_link_hash_table
*htab
;
1921 struct elf32_hppa_link_hash_entry
*hh
;
1924 if (eh
->root
.type
== bfd_link_hash_indirect
)
1927 info
= (struct bfd_link_info
*) inf
;
1928 hh
= hppa_elf_hash_entry (eh
);
1929 htab
= hppa_link_hash_table (info
);
1933 if (htab
->etab
.dynamic_sections_created
1934 && eh
->plt
.refcount
> 0)
1936 /* Make sure this symbol is output as a dynamic symbol.
1937 Undefined weak syms won't yet be marked as dynamic. */
1938 if (eh
->dynindx
== -1
1939 && !eh
->forced_local
1940 && eh
->type
!= STT_PARISC_MILLI
)
1942 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
1946 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info
), eh
))
1948 /* Allocate these later. From this point on, h->plabel
1949 means that the plt entry is only used by a plabel.
1950 We'll be using a normal plt entry for this symbol, so
1951 clear the plabel indicator. */
1955 else if (hh
->plabel
)
1957 /* Make an entry in the .plt section for plabel references
1958 that won't have a .plt entry for other reasons. */
1959 sec
= htab
->etab
.splt
;
1960 eh
->plt
.offset
= sec
->size
;
1961 sec
->size
+= PLT_ENTRY_SIZE
;
1965 /* No .plt entry needed. */
1966 eh
->plt
.offset
= (bfd_vma
) -1;
1972 eh
->plt
.offset
= (bfd_vma
) -1;
1979 /* Allocate space in .plt, .got and associated reloc sections for
1983 allocate_dynrelocs (struct elf_link_hash_entry
*eh
, void *inf
)
1985 struct bfd_link_info
*info
;
1986 struct elf32_hppa_link_hash_table
*htab
;
1988 struct elf32_hppa_link_hash_entry
*hh
;
1989 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1991 if (eh
->root
.type
== bfd_link_hash_indirect
)
1995 htab
= hppa_link_hash_table (info
);
1999 hh
= hppa_elf_hash_entry (eh
);
2001 if (htab
->etab
.dynamic_sections_created
2002 && eh
->plt
.offset
!= (bfd_vma
) -1
2004 && eh
->plt
.refcount
> 0)
2006 /* Make an entry in the .plt section. */
2007 sec
= htab
->etab
.splt
;
2008 eh
->plt
.offset
= sec
->size
;
2009 sec
->size
+= PLT_ENTRY_SIZE
;
2011 /* We also need to make an entry in the .rela.plt section. */
2012 htab
->etab
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
2013 htab
->need_plt_stub
= 1;
2016 if (eh
->got
.refcount
> 0)
2018 /* Make sure this symbol is output as a dynamic symbol.
2019 Undefined weak syms won't yet be marked as dynamic. */
2020 if (eh
->dynindx
== -1
2021 && !eh
->forced_local
2022 && eh
->type
!= STT_PARISC_MILLI
)
2024 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
2028 sec
= htab
->etab
.sgot
;
2029 eh
->got
.offset
= sec
->size
;
2030 sec
->size
+= GOT_ENTRY_SIZE
;
2031 /* R_PARISC_TLS_GD* needs two GOT entries */
2032 if ((hh
->tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2033 sec
->size
+= GOT_ENTRY_SIZE
* 2;
2034 else if ((hh
->tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2035 sec
->size
+= GOT_ENTRY_SIZE
;
2036 if (htab
->etab
.dynamic_sections_created
2037 && (bfd_link_pic (info
)
2038 || (eh
->dynindx
!= -1
2039 && !eh
->forced_local
)))
2041 htab
->etab
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
2042 if ((hh
->tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2043 htab
->etab
.srelgot
->size
+= 2 * sizeof (Elf32_External_Rela
);
2044 else if ((hh
->tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2045 htab
->etab
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
2049 eh
->got
.offset
= (bfd_vma
) -1;
2051 if (hh
->dyn_relocs
== NULL
)
2054 /* If this is a -Bsymbolic shared link, then we need to discard all
2055 space allocated for dynamic pc-relative relocs against symbols
2056 defined in a regular object. For the normal shared case, discard
2057 space for relocs that have become local due to symbol visibility
2059 if (bfd_link_pic (info
))
2061 #if RELATIVE_DYNRELOCS
2062 if (SYMBOL_CALLS_LOCAL (info
, eh
))
2064 struct elf32_hppa_dyn_reloc_entry
**hdh_pp
;
2066 for (hdh_pp
= &hh
->dyn_relocs
; (hdh_p
= *hdh_pp
) != NULL
; )
2068 hdh_p
->count
-= hdh_p
->relative_count
;
2069 hdh_p
->relative_count
= 0;
2070 if (hdh_p
->count
== 0)
2071 *hdh_pp
= hdh_p
->hdh_next
;
2073 hdh_pp
= &hdh_p
->hdh_next
;
2078 /* Also discard relocs on undefined weak syms with non-default
2080 if (hh
->dyn_relocs
!= NULL
2081 && eh
->root
.type
== bfd_link_hash_undefweak
)
2083 if (ELF_ST_VISIBILITY (eh
->other
) != STV_DEFAULT
)
2084 hh
->dyn_relocs
= NULL
;
2086 /* Make sure undefined weak symbols are output as a dynamic
2088 else if (eh
->dynindx
== -1
2089 && !eh
->forced_local
)
2091 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
2098 /* For the non-shared case, discard space for relocs against
2099 symbols which turn out to need copy relocs or are not
2102 if (!eh
->non_got_ref
2103 && ((ELIMINATE_COPY_RELOCS
2105 && !eh
->def_regular
)
2106 || (htab
->etab
.dynamic_sections_created
2107 && (eh
->root
.type
== bfd_link_hash_undefweak
2108 || eh
->root
.type
== bfd_link_hash_undefined
))))
2110 /* Make sure this symbol is output as a dynamic symbol.
2111 Undefined weak syms won't yet be marked as dynamic. */
2112 if (eh
->dynindx
== -1
2113 && !eh
->forced_local
2114 && eh
->type
!= STT_PARISC_MILLI
)
2116 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
2120 /* If that succeeded, we know we'll be keeping all the
2122 if (eh
->dynindx
!= -1)
2126 hh
->dyn_relocs
= NULL
;
2132 /* Finally, allocate space. */
2133 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
2135 asection
*sreloc
= elf_section_data (hdh_p
->sec
)->sreloc
;
2136 sreloc
->size
+= hdh_p
->count
* sizeof (Elf32_External_Rela
);
2142 /* This function is called via elf_link_hash_traverse to force
2143 millicode symbols local so they do not end up as globals in the
2144 dynamic symbol table. We ought to be able to do this in
2145 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2146 for all dynamic symbols. Arguably, this is a bug in
2147 elf_adjust_dynamic_symbol. */
2150 clobber_millicode_symbols (struct elf_link_hash_entry
*eh
,
2151 struct bfd_link_info
*info
)
2153 if (eh
->type
== STT_PARISC_MILLI
2154 && !eh
->forced_local
)
2156 elf32_hppa_hide_symbol (info
, eh
, TRUE
);
2161 /* Find any dynamic relocs that apply to read-only sections. */
2164 readonly_dynrelocs (struct elf_link_hash_entry
*eh
, void *inf
)
2166 struct elf32_hppa_link_hash_entry
*hh
;
2167 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
2169 hh
= hppa_elf_hash_entry (eh
);
2170 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
2172 asection
*sec
= hdh_p
->sec
->output_section
;
2174 if (sec
!= NULL
&& (sec
->flags
& SEC_READONLY
) != 0)
2176 struct bfd_link_info
*info
= inf
;
2178 info
->flags
|= DF_TEXTREL
;
2180 /* Not an error, just cut short the traversal. */
2187 /* Set the sizes of the dynamic sections. */
2190 elf32_hppa_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2191 struct bfd_link_info
*info
)
2193 struct elf32_hppa_link_hash_table
*htab
;
2199 htab
= hppa_link_hash_table (info
);
2203 dynobj
= htab
->etab
.dynobj
;
2207 if (htab
->etab
.dynamic_sections_created
)
2209 /* Set the contents of the .interp section to the interpreter. */
2210 if (bfd_link_executable (info
) && !info
->nointerp
)
2212 sec
= bfd_get_linker_section (dynobj
, ".interp");
2215 sec
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
2216 sec
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
2219 /* Force millicode symbols local. */
2220 elf_link_hash_traverse (&htab
->etab
,
2221 clobber_millicode_symbols
,
2225 /* Set up .got and .plt offsets for local syms, and space for local
2227 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
2229 bfd_signed_vma
*local_got
;
2230 bfd_signed_vma
*end_local_got
;
2231 bfd_signed_vma
*local_plt
;
2232 bfd_signed_vma
*end_local_plt
;
2233 bfd_size_type locsymcount
;
2234 Elf_Internal_Shdr
*symtab_hdr
;
2236 char *local_tls_type
;
2238 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2241 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
2243 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
2245 for (hdh_p
= ((struct elf32_hppa_dyn_reloc_entry
*)
2246 elf_section_data (sec
)->local_dynrel
);
2248 hdh_p
= hdh_p
->hdh_next
)
2250 if (!bfd_is_abs_section (hdh_p
->sec
)
2251 && bfd_is_abs_section (hdh_p
->sec
->output_section
))
2253 /* Input section has been discarded, either because
2254 it is a copy of a linkonce section or due to
2255 linker script /DISCARD/, so we'll be discarding
2258 else if (hdh_p
->count
!= 0)
2260 srel
= elf_section_data (hdh_p
->sec
)->sreloc
;
2261 srel
->size
+= hdh_p
->count
* sizeof (Elf32_External_Rela
);
2262 if ((hdh_p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2263 info
->flags
|= DF_TEXTREL
;
2268 local_got
= elf_local_got_refcounts (ibfd
);
2272 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
2273 locsymcount
= symtab_hdr
->sh_info
;
2274 end_local_got
= local_got
+ locsymcount
;
2275 local_tls_type
= hppa_elf_local_got_tls_type (ibfd
);
2276 sec
= htab
->etab
.sgot
;
2277 srel
= htab
->etab
.srelgot
;
2278 for (; local_got
< end_local_got
; ++local_got
)
2282 *local_got
= sec
->size
;
2283 sec
->size
+= GOT_ENTRY_SIZE
;
2284 if ((*local_tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2285 sec
->size
+= 2 * GOT_ENTRY_SIZE
;
2286 else if ((*local_tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2287 sec
->size
+= GOT_ENTRY_SIZE
;
2288 if (bfd_link_pic (info
))
2290 srel
->size
+= sizeof (Elf32_External_Rela
);
2291 if ((*local_tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2292 srel
->size
+= 2 * sizeof (Elf32_External_Rela
);
2293 else if ((*local_tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2294 srel
->size
+= sizeof (Elf32_External_Rela
);
2298 *local_got
= (bfd_vma
) -1;
2303 local_plt
= end_local_got
;
2304 end_local_plt
= local_plt
+ locsymcount
;
2305 if (! htab
->etab
.dynamic_sections_created
)
2307 /* Won't be used, but be safe. */
2308 for (; local_plt
< end_local_plt
; ++local_plt
)
2309 *local_plt
= (bfd_vma
) -1;
2313 sec
= htab
->etab
.splt
;
2314 srel
= htab
->etab
.srelplt
;
2315 for (; local_plt
< end_local_plt
; ++local_plt
)
2319 *local_plt
= sec
->size
;
2320 sec
->size
+= PLT_ENTRY_SIZE
;
2321 if (bfd_link_pic (info
))
2322 srel
->size
+= sizeof (Elf32_External_Rela
);
2325 *local_plt
= (bfd_vma
) -1;
2330 if (htab
->tls_ldm_got
.refcount
> 0)
2332 /* Allocate 2 got entries and 1 dynamic reloc for
2333 R_PARISC_TLS_DTPMOD32 relocs. */
2334 htab
->tls_ldm_got
.offset
= htab
->etab
.sgot
->size
;
2335 htab
->etab
.sgot
->size
+= (GOT_ENTRY_SIZE
* 2);
2336 htab
->etab
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
2339 htab
->tls_ldm_got
.offset
= -1;
2341 /* Do all the .plt entries without relocs first. The dynamic linker
2342 uses the last .plt reloc to find the end of the .plt (and hence
2343 the start of the .got) for lazy linking. */
2344 elf_link_hash_traverse (&htab
->etab
, allocate_plt_static
, info
);
2346 /* Allocate global sym .plt and .got entries, and space for global
2347 sym dynamic relocs. */
2348 elf_link_hash_traverse (&htab
->etab
, allocate_dynrelocs
, info
);
2350 /* The check_relocs and adjust_dynamic_symbol entry points have
2351 determined the sizes of the various dynamic sections. Allocate
2354 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
2356 if ((sec
->flags
& SEC_LINKER_CREATED
) == 0)
2359 if (sec
== htab
->etab
.splt
)
2361 if (htab
->need_plt_stub
)
2363 /* Make space for the plt stub at the end of the .plt
2364 section. We want this stub right at the end, up
2365 against the .got section. */
2366 int gotalign
= bfd_section_alignment (dynobj
, htab
->etab
.sgot
);
2367 int pltalign
= bfd_section_alignment (dynobj
, sec
);
2370 if (gotalign
> pltalign
)
2371 (void) bfd_set_section_alignment (dynobj
, sec
, gotalign
);
2372 mask
= ((bfd_size_type
) 1 << gotalign
) - 1;
2373 sec
->size
= (sec
->size
+ sizeof (plt_stub
) + mask
) & ~mask
;
2376 else if (sec
== htab
->etab
.sgot
2377 || sec
== htab
->etab
.sdynbss
)
2379 else if (CONST_STRNEQ (bfd_get_section_name (dynobj
, sec
), ".rela"))
2383 /* Remember whether there are any reloc sections other
2385 if (sec
!= htab
->etab
.srelplt
)
2388 /* We use the reloc_count field as a counter if we need
2389 to copy relocs into the output file. */
2390 sec
->reloc_count
= 0;
2395 /* It's not one of our sections, so don't allocate space. */
2401 /* If we don't need this section, strip it from the
2402 output file. This is mostly to handle .rela.bss and
2403 .rela.plt. We must create both sections in
2404 create_dynamic_sections, because they must be created
2405 before the linker maps input sections to output
2406 sections. The linker does that before
2407 adjust_dynamic_symbol is called, and it is that
2408 function which decides whether anything needs to go
2409 into these sections. */
2410 sec
->flags
|= SEC_EXCLUDE
;
2414 if ((sec
->flags
& SEC_HAS_CONTENTS
) == 0)
2417 /* Allocate memory for the section contents. Zero it, because
2418 we may not fill in all the reloc sections. */
2419 sec
->contents
= bfd_zalloc (dynobj
, sec
->size
);
2420 if (sec
->contents
== NULL
)
2424 if (htab
->etab
.dynamic_sections_created
)
2426 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2427 actually has nothing to do with the PLT, it is how we
2428 communicate the LTP value of a load module to the dynamic
2430 #define add_dynamic_entry(TAG, VAL) \
2431 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2433 if (!add_dynamic_entry (DT_PLTGOT
, 0))
2436 /* Add some entries to the .dynamic section. We fill in the
2437 values later, in elf32_hppa_finish_dynamic_sections, but we
2438 must add the entries now so that we get the correct size for
2439 the .dynamic section. The DT_DEBUG entry is filled in by the
2440 dynamic linker and used by the debugger. */
2441 if (bfd_link_executable (info
))
2443 if (!add_dynamic_entry (DT_DEBUG
, 0))
2447 if (htab
->etab
.srelplt
->size
!= 0)
2449 if (!add_dynamic_entry (DT_PLTRELSZ
, 0)
2450 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
2451 || !add_dynamic_entry (DT_JMPREL
, 0))
2457 if (!add_dynamic_entry (DT_RELA
, 0)
2458 || !add_dynamic_entry (DT_RELASZ
, 0)
2459 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
2462 /* If any dynamic relocs apply to a read-only section,
2463 then we need a DT_TEXTREL entry. */
2464 if ((info
->flags
& DF_TEXTREL
) == 0)
2465 elf_link_hash_traverse (&htab
->etab
, readonly_dynrelocs
, info
);
2467 if ((info
->flags
& DF_TEXTREL
) != 0)
2469 if (!add_dynamic_entry (DT_TEXTREL
, 0))
2474 #undef add_dynamic_entry
2479 /* External entry points for sizing and building linker stubs. */
2481 /* Set up various things so that we can make a list of input sections
2482 for each output section included in the link. Returns -1 on error,
2483 0 when no stubs will be needed, and 1 on success. */
2486 elf32_hppa_setup_section_lists (bfd
*output_bfd
, struct bfd_link_info
*info
)
2489 unsigned int bfd_count
;
2490 unsigned int top_id
, top_index
;
2492 asection
**input_list
, **list
;
2494 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2499 /* Count the number of input BFDs and find the top input section id. */
2500 for (input_bfd
= info
->input_bfds
, bfd_count
= 0, top_id
= 0;
2502 input_bfd
= input_bfd
->link
.next
)
2505 for (section
= input_bfd
->sections
;
2507 section
= section
->next
)
2509 if (top_id
< section
->id
)
2510 top_id
= section
->id
;
2513 htab
->bfd_count
= bfd_count
;
2515 amt
= sizeof (struct map_stub
) * (top_id
+ 1);
2516 htab
->stub_group
= bfd_zmalloc (amt
);
2517 if (htab
->stub_group
== NULL
)
2520 /* We can't use output_bfd->section_count here to find the top output
2521 section index as some sections may have been removed, and
2522 strip_excluded_output_sections doesn't renumber the indices. */
2523 for (section
= output_bfd
->sections
, top_index
= 0;
2525 section
= section
->next
)
2527 if (top_index
< section
->index
)
2528 top_index
= section
->index
;
2531 htab
->top_index
= top_index
;
2532 amt
= sizeof (asection
*) * (top_index
+ 1);
2533 input_list
= bfd_malloc (amt
);
2534 htab
->input_list
= input_list
;
2535 if (input_list
== NULL
)
2538 /* For sections we aren't interested in, mark their entries with a
2539 value we can check later. */
2540 list
= input_list
+ top_index
;
2542 *list
= bfd_abs_section_ptr
;
2543 while (list
-- != input_list
);
2545 for (section
= output_bfd
->sections
;
2547 section
= section
->next
)
2549 if ((section
->flags
& SEC_CODE
) != 0)
2550 input_list
[section
->index
] = NULL
;
2556 /* The linker repeatedly calls this function for each input section,
2557 in the order that input sections are linked into output sections.
2558 Build lists of input sections to determine groupings between which
2559 we may insert linker stubs. */
2562 elf32_hppa_next_input_section (struct bfd_link_info
*info
, asection
*isec
)
2564 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2569 if (isec
->output_section
->index
<= htab
->top_index
)
2571 asection
**list
= htab
->input_list
+ isec
->output_section
->index
;
2572 if (*list
!= bfd_abs_section_ptr
)
2574 /* Steal the link_sec pointer for our list. */
2575 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2576 /* This happens to make the list in reverse order,
2577 which is what we want. */
2578 PREV_SEC (isec
) = *list
;
2584 /* See whether we can group stub sections together. Grouping stub
2585 sections may result in fewer stubs. More importantly, we need to
2586 put all .init* and .fini* stubs at the beginning of the .init or
2587 .fini output sections respectively, because glibc splits the
2588 _init and _fini functions into multiple parts. Putting a stub in
2589 the middle of a function is not a good idea. */
2592 group_sections (struct elf32_hppa_link_hash_table
*htab
,
2593 bfd_size_type stub_group_size
,
2594 bfd_boolean stubs_always_before_branch
)
2596 asection
**list
= htab
->input_list
+ htab
->top_index
;
2599 asection
*tail
= *list
;
2600 if (tail
== bfd_abs_section_ptr
)
2602 while (tail
!= NULL
)
2606 bfd_size_type total
;
2607 bfd_boolean big_sec
;
2611 big_sec
= total
>= stub_group_size
;
2613 while ((prev
= PREV_SEC (curr
)) != NULL
2614 && ((total
+= curr
->output_offset
- prev
->output_offset
)
2618 /* OK, the size from the start of CURR to the end is less
2619 than 240000 bytes and thus can be handled by one stub
2620 section. (or the tail section is itself larger than
2621 240000 bytes, in which case we may be toast.)
2622 We should really be keeping track of the total size of
2623 stubs added here, as stubs contribute to the final output
2624 section size. That's a little tricky, and this way will
2625 only break if stubs added total more than 22144 bytes, or
2626 2768 long branch stubs. It seems unlikely for more than
2627 2768 different functions to be called, especially from
2628 code only 240000 bytes long. This limit used to be
2629 250000, but c++ code tends to generate lots of little
2630 functions, and sometimes violated the assumption. */
2633 prev
= PREV_SEC (tail
);
2634 /* Set up this stub group. */
2635 htab
->stub_group
[tail
->id
].link_sec
= curr
;
2637 while (tail
!= curr
&& (tail
= prev
) != NULL
);
2639 /* But wait, there's more! Input sections up to 240000
2640 bytes before the stub section can be handled by it too.
2641 Don't do this if we have a really large section after the
2642 stubs, as adding more stubs increases the chance that
2643 branches may not reach into the stub section. */
2644 if (!stubs_always_before_branch
&& !big_sec
)
2648 && ((total
+= tail
->output_offset
- prev
->output_offset
)
2652 prev
= PREV_SEC (tail
);
2653 htab
->stub_group
[tail
->id
].link_sec
= curr
;
2659 while (list
-- != htab
->input_list
);
2660 free (htab
->input_list
);
2664 /* Read in all local syms for all input bfds, and create hash entries
2665 for export stubs if we are building a multi-subspace shared lib.
2666 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2669 get_local_syms (bfd
*output_bfd
, bfd
*input_bfd
, struct bfd_link_info
*info
)
2671 unsigned int bfd_indx
;
2672 Elf_Internal_Sym
*local_syms
, **all_local_syms
;
2673 int stub_changed
= 0;
2674 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2679 /* We want to read in symbol extension records only once. To do this
2680 we need to read in the local symbols in parallel and save them for
2681 later use; so hold pointers to the local symbols in an array. */
2682 bfd_size_type amt
= sizeof (Elf_Internal_Sym
*) * htab
->bfd_count
;
2683 all_local_syms
= bfd_zmalloc (amt
);
2684 htab
->all_local_syms
= all_local_syms
;
2685 if (all_local_syms
== NULL
)
2688 /* Walk over all the input BFDs, swapping in local symbols.
2689 If we are creating a shared library, create hash entries for the
2693 input_bfd
= input_bfd
->link
.next
, bfd_indx
++)
2695 Elf_Internal_Shdr
*symtab_hdr
;
2697 /* We'll need the symbol table in a second. */
2698 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2699 if (symtab_hdr
->sh_info
== 0)
2702 /* We need an array of the local symbols attached to the input bfd. */
2703 local_syms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
2704 if (local_syms
== NULL
)
2706 local_syms
= bfd_elf_get_elf_syms (input_bfd
, symtab_hdr
,
2707 symtab_hdr
->sh_info
, 0,
2709 /* Cache them for elf_link_input_bfd. */
2710 symtab_hdr
->contents
= (unsigned char *) local_syms
;
2712 if (local_syms
== NULL
)
2715 all_local_syms
[bfd_indx
] = local_syms
;
2717 if (bfd_link_pic (info
) && htab
->multi_subspace
)
2719 struct elf_link_hash_entry
**eh_syms
;
2720 struct elf_link_hash_entry
**eh_symend
;
2721 unsigned int symcount
;
2723 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
2724 - symtab_hdr
->sh_info
);
2725 eh_syms
= (struct elf_link_hash_entry
**) elf_sym_hashes (input_bfd
);
2726 eh_symend
= (struct elf_link_hash_entry
**) (eh_syms
+ symcount
);
2728 /* Look through the global syms for functions; We need to
2729 build export stubs for all globally visible functions. */
2730 for (; eh_syms
< eh_symend
; eh_syms
++)
2732 struct elf32_hppa_link_hash_entry
*hh
;
2734 hh
= hppa_elf_hash_entry (*eh_syms
);
2736 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
2737 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
2738 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
2740 /* At this point in the link, undefined syms have been
2741 resolved, so we need to check that the symbol was
2742 defined in this BFD. */
2743 if ((hh
->eh
.root
.type
== bfd_link_hash_defined
2744 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)
2745 && hh
->eh
.type
== STT_FUNC
2746 && hh
->eh
.root
.u
.def
.section
->output_section
!= NULL
2747 && (hh
->eh
.root
.u
.def
.section
->output_section
->owner
2749 && hh
->eh
.root
.u
.def
.section
->owner
== input_bfd
2750 && hh
->eh
.def_regular
2751 && !hh
->eh
.forced_local
2752 && ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
)
2755 const char *stub_name
;
2756 struct elf32_hppa_stub_hash_entry
*hsh
;
2758 sec
= hh
->eh
.root
.u
.def
.section
;
2759 stub_name
= hh_name (hh
);
2760 hsh
= hppa_stub_hash_lookup (&htab
->bstab
,
2765 hsh
= hppa_add_stub (stub_name
, sec
, htab
);
2769 hsh
->target_value
= hh
->eh
.root
.u
.def
.value
;
2770 hsh
->target_section
= hh
->eh
.root
.u
.def
.section
;
2771 hsh
->stub_type
= hppa_stub_export
;
2777 /* xgettext:c-format */
2778 _bfd_error_handler (_("%B: duplicate export stub %s"),
2779 input_bfd
, stub_name
);
2786 return stub_changed
;
2789 /* Determine and set the size of the stub section for a final link.
2791 The basic idea here is to examine all the relocations looking for
2792 PC-relative calls to a target that is unreachable with a "bl"
2796 elf32_hppa_size_stubs
2797 (bfd
*output_bfd
, bfd
*stub_bfd
, struct bfd_link_info
*info
,
2798 bfd_boolean multi_subspace
, bfd_signed_vma group_size
,
2799 asection
* (*add_stub_section
) (const char *, asection
*),
2800 void (*layout_sections_again
) (void))
2802 bfd_size_type stub_group_size
;
2803 bfd_boolean stubs_always_before_branch
;
2804 bfd_boolean stub_changed
;
2805 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2810 /* Stash our params away. */
2811 htab
->stub_bfd
= stub_bfd
;
2812 htab
->multi_subspace
= multi_subspace
;
2813 htab
->add_stub_section
= add_stub_section
;
2814 htab
->layout_sections_again
= layout_sections_again
;
2815 stubs_always_before_branch
= group_size
< 0;
2817 stub_group_size
= -group_size
;
2819 stub_group_size
= group_size
;
2820 if (stub_group_size
== 1)
2822 /* Default values. */
2823 if (stubs_always_before_branch
)
2825 stub_group_size
= 7680000;
2826 if (htab
->has_17bit_branch
|| htab
->multi_subspace
)
2827 stub_group_size
= 240000;
2828 if (htab
->has_12bit_branch
)
2829 stub_group_size
= 7500;
2833 stub_group_size
= 6971392;
2834 if (htab
->has_17bit_branch
|| htab
->multi_subspace
)
2835 stub_group_size
= 217856;
2836 if (htab
->has_12bit_branch
)
2837 stub_group_size
= 6808;
2841 group_sections (htab
, stub_group_size
, stubs_always_before_branch
);
2843 switch (get_local_syms (output_bfd
, info
->input_bfds
, info
))
2846 if (htab
->all_local_syms
)
2847 goto error_ret_free_local
;
2851 stub_changed
= FALSE
;
2855 stub_changed
= TRUE
;
2862 unsigned int bfd_indx
;
2865 for (input_bfd
= info
->input_bfds
, bfd_indx
= 0;
2867 input_bfd
= input_bfd
->link
.next
, bfd_indx
++)
2869 Elf_Internal_Shdr
*symtab_hdr
;
2871 Elf_Internal_Sym
*local_syms
;
2873 /* We'll need the symbol table in a second. */
2874 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2875 if (symtab_hdr
->sh_info
== 0)
2878 local_syms
= htab
->all_local_syms
[bfd_indx
];
2880 /* Walk over each section attached to the input bfd. */
2881 for (section
= input_bfd
->sections
;
2883 section
= section
->next
)
2885 Elf_Internal_Rela
*internal_relocs
, *irelaend
, *irela
;
2887 /* If there aren't any relocs, then there's nothing more
2889 if ((section
->flags
& SEC_RELOC
) == 0
2890 || section
->reloc_count
== 0)
2893 /* If this section is a link-once section that will be
2894 discarded, then don't create any stubs. */
2895 if (section
->output_section
== NULL
2896 || section
->output_section
->owner
!= output_bfd
)
2899 /* Get the relocs. */
2901 = _bfd_elf_link_read_relocs (input_bfd
, section
, NULL
, NULL
,
2903 if (internal_relocs
== NULL
)
2904 goto error_ret_free_local
;
2906 /* Now examine each relocation. */
2907 irela
= internal_relocs
;
2908 irelaend
= irela
+ section
->reloc_count
;
2909 for (; irela
< irelaend
; irela
++)
2911 unsigned int r_type
, r_indx
;
2912 enum elf32_hppa_stub_type stub_type
;
2913 struct elf32_hppa_stub_hash_entry
*hsh
;
2916 bfd_vma destination
;
2917 struct elf32_hppa_link_hash_entry
*hh
;
2919 const asection
*id_sec
;
2921 r_type
= ELF32_R_TYPE (irela
->r_info
);
2922 r_indx
= ELF32_R_SYM (irela
->r_info
);
2924 if (r_type
>= (unsigned int) R_PARISC_UNIMPLEMENTED
)
2926 bfd_set_error (bfd_error_bad_value
);
2927 error_ret_free_internal
:
2928 if (elf_section_data (section
)->relocs
== NULL
)
2929 free (internal_relocs
);
2930 goto error_ret_free_local
;
2933 /* Only look for stubs on call instructions. */
2934 if (r_type
!= (unsigned int) R_PARISC_PCREL12F
2935 && r_type
!= (unsigned int) R_PARISC_PCREL17F
2936 && r_type
!= (unsigned int) R_PARISC_PCREL22F
)
2939 /* Now determine the call target, its name, value,
2945 if (r_indx
< symtab_hdr
->sh_info
)
2947 /* It's a local symbol. */
2948 Elf_Internal_Sym
*sym
;
2949 Elf_Internal_Shdr
*hdr
;
2952 sym
= local_syms
+ r_indx
;
2953 if (ELF_ST_TYPE (sym
->st_info
) != STT_SECTION
)
2954 sym_value
= sym
->st_value
;
2955 shndx
= sym
->st_shndx
;
2956 if (shndx
< elf_numsections (input_bfd
))
2958 hdr
= elf_elfsections (input_bfd
)[shndx
];
2959 sym_sec
= hdr
->bfd_section
;
2960 destination
= (sym_value
+ irela
->r_addend
2961 + sym_sec
->output_offset
2962 + sym_sec
->output_section
->vma
);
2967 /* It's an external symbol. */
2970 e_indx
= r_indx
- symtab_hdr
->sh_info
;
2971 hh
= hppa_elf_hash_entry (elf_sym_hashes (input_bfd
)[e_indx
]);
2973 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
2974 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
2975 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
2977 if (hh
->eh
.root
.type
== bfd_link_hash_defined
2978 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)
2980 sym_sec
= hh
->eh
.root
.u
.def
.section
;
2981 sym_value
= hh
->eh
.root
.u
.def
.value
;
2982 if (sym_sec
->output_section
!= NULL
)
2983 destination
= (sym_value
+ irela
->r_addend
2984 + sym_sec
->output_offset
2985 + sym_sec
->output_section
->vma
);
2987 else if (hh
->eh
.root
.type
== bfd_link_hash_undefweak
)
2989 if (! bfd_link_pic (info
))
2992 else if (hh
->eh
.root
.type
== bfd_link_hash_undefined
)
2994 if (! (info
->unresolved_syms_in_objects
== RM_IGNORE
2995 && (ELF_ST_VISIBILITY (hh
->eh
.other
)
2997 && hh
->eh
.type
!= STT_PARISC_MILLI
))
3002 bfd_set_error (bfd_error_bad_value
);
3003 goto error_ret_free_internal
;
3007 /* Determine what (if any) linker stub is needed. */
3008 stub_type
= hppa_type_of_stub (section
, irela
, hh
,
3010 if (stub_type
== hppa_stub_none
)
3013 /* Support for grouping stub sections. */
3014 id_sec
= htab
->stub_group
[section
->id
].link_sec
;
3016 /* Get the name of this stub. */
3017 stub_name
= hppa_stub_name (id_sec
, sym_sec
, hh
, irela
);
3019 goto error_ret_free_internal
;
3021 hsh
= hppa_stub_hash_lookup (&htab
->bstab
,
3026 /* The proper stub has already been created. */
3031 hsh
= hppa_add_stub (stub_name
, section
, htab
);
3035 goto error_ret_free_internal
;
3038 hsh
->target_value
= sym_value
;
3039 hsh
->target_section
= sym_sec
;
3040 hsh
->stub_type
= stub_type
;
3041 if (bfd_link_pic (info
))
3043 if (stub_type
== hppa_stub_import
)
3044 hsh
->stub_type
= hppa_stub_import_shared
;
3045 else if (stub_type
== hppa_stub_long_branch
)
3046 hsh
->stub_type
= hppa_stub_long_branch_shared
;
3049 stub_changed
= TRUE
;
3052 /* We're done with the internal relocs, free them. */
3053 if (elf_section_data (section
)->relocs
== NULL
)
3054 free (internal_relocs
);
3061 /* OK, we've added some stubs. Find out the new size of the
3063 for (stub_sec
= htab
->stub_bfd
->sections
;
3065 stub_sec
= stub_sec
->next
)
3066 if ((stub_sec
->flags
& SEC_LINKER_CREATED
) == 0)
3069 bfd_hash_traverse (&htab
->bstab
, hppa_size_one_stub
, htab
);
3071 /* Ask the linker to do its stuff. */
3072 (*htab
->layout_sections_again
) ();
3073 stub_changed
= FALSE
;
3076 free (htab
->all_local_syms
);
3079 error_ret_free_local
:
3080 free (htab
->all_local_syms
);
3084 /* For a final link, this function is called after we have sized the
3085 stubs to provide a value for __gp. */
3088 elf32_hppa_set_gp (bfd
*abfd
, struct bfd_link_info
*info
)
3090 struct bfd_link_hash_entry
*h
;
3091 asection
*sec
= NULL
;
3093 struct elf32_hppa_link_hash_table
*htab
;
3095 htab
= hppa_link_hash_table (info
);
3099 h
= bfd_link_hash_lookup (&htab
->etab
.root
, "$global$", FALSE
, FALSE
, FALSE
);
3102 && (h
->type
== bfd_link_hash_defined
3103 || h
->type
== bfd_link_hash_defweak
))
3105 gp_val
= h
->u
.def
.value
;
3106 sec
= h
->u
.def
.section
;
3110 asection
*splt
= bfd_get_section_by_name (abfd
, ".plt");
3111 asection
*sgot
= bfd_get_section_by_name (abfd
, ".got");
3113 /* Choose to point our LTP at, in this order, one of .plt, .got,
3114 or .data, if these sections exist. In the case of choosing
3115 .plt try to make the LTP ideal for addressing anywhere in the
3116 .plt or .got with a 14 bit signed offset. Typically, the end
3117 of the .plt is the start of the .got, so choose .plt + 0x2000
3118 if either the .plt or .got is larger than 0x2000. If both
3119 the .plt and .got are smaller than 0x2000, choose the end of
3120 the .plt section. */
3121 sec
= strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") == 0
3126 if (gp_val
> 0x2000 || (sgot
&& sgot
->size
> 0x2000))
3136 if (strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") != 0)
3138 /* We know we don't have a .plt. If .got is large,
3140 if (sec
->size
> 0x2000)
3146 /* No .plt or .got. Who cares what the LTP is? */
3147 sec
= bfd_get_section_by_name (abfd
, ".data");
3153 h
->type
= bfd_link_hash_defined
;
3154 h
->u
.def
.value
= gp_val
;
3156 h
->u
.def
.section
= sec
;
3158 h
->u
.def
.section
= bfd_abs_section_ptr
;
3162 if (sec
!= NULL
&& sec
->output_section
!= NULL
)
3163 gp_val
+= sec
->output_section
->vma
+ sec
->output_offset
;
3165 elf_gp (abfd
) = gp_val
;
3169 /* Build all the stubs associated with the current output file. The
3170 stubs are kept in a hash table attached to the main linker hash
3171 table. We also set up the .plt entries for statically linked PIC
3172 functions here. This function is called via hppaelf_finish in the
3176 elf32_hppa_build_stubs (struct bfd_link_info
*info
)
3179 struct bfd_hash_table
*table
;
3180 struct elf32_hppa_link_hash_table
*htab
;
3182 htab
= hppa_link_hash_table (info
);
3186 for (stub_sec
= htab
->stub_bfd
->sections
;
3188 stub_sec
= stub_sec
->next
)
3189 if ((stub_sec
->flags
& SEC_LINKER_CREATED
) == 0
3190 && stub_sec
->size
!= 0)
3192 /* Allocate memory to hold the linker stubs. */
3193 stub_sec
->contents
= bfd_zalloc (htab
->stub_bfd
, stub_sec
->size
);
3194 if (stub_sec
->contents
== NULL
)
3199 /* Build the stubs as directed by the stub hash table. */
3200 table
= &htab
->bstab
;
3201 bfd_hash_traverse (table
, hppa_build_one_stub
, info
);
3206 /* Return the base vma address which should be subtracted from the real
3207 address when resolving a dtpoff relocation.
3208 This is PT_TLS segment p_vaddr. */
3211 dtpoff_base (struct bfd_link_info
*info
)
3213 /* If tls_sec is NULL, we should have signalled an error already. */
3214 if (elf_hash_table (info
)->tls_sec
== NULL
)
3216 return elf_hash_table (info
)->tls_sec
->vma
;
3219 /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3222 tpoff (struct bfd_link_info
*info
, bfd_vma address
)
3224 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
3226 /* If tls_sec is NULL, we should have signalled an error already. */
3227 if (htab
->tls_sec
== NULL
)
3229 /* hppa TLS ABI is variant I and static TLS block start just after
3230 tcbhead structure which has 2 pointer fields. */
3231 return (address
- htab
->tls_sec
->vma
3232 + align_power ((bfd_vma
) 8, htab
->tls_sec
->alignment_power
));
3235 /* Perform a final link. */
3238 elf32_hppa_final_link (bfd
*abfd
, struct bfd_link_info
*info
)
3242 /* Invoke the regular ELF linker to do all the work. */
3243 if (!bfd_elf_final_link (abfd
, info
))
3246 /* If we're producing a final executable, sort the contents of the
3248 if (bfd_link_relocatable (info
))
3251 /* Do not attempt to sort non-regular files. This is here
3252 especially for configure scripts and kernel builds which run
3253 tests with "ld [...] -o /dev/null". */
3254 if (stat (abfd
->filename
, &buf
) != 0
3255 || !S_ISREG(buf
.st_mode
))
3258 return elf_hppa_sort_unwind (abfd
);
3261 /* Record the lowest address for the data and text segments. */
3264 hppa_record_segment_addr (bfd
*abfd
, asection
*section
, void *data
)
3266 struct elf32_hppa_link_hash_table
*htab
;
3268 htab
= (struct elf32_hppa_link_hash_table
*) data
;
3272 if ((section
->flags
& (SEC_ALLOC
| SEC_LOAD
)) == (SEC_ALLOC
| SEC_LOAD
))
3275 Elf_Internal_Phdr
*p
;
3277 p
= _bfd_elf_find_segment_containing_section (abfd
, section
->output_section
);
3278 BFD_ASSERT (p
!= NULL
);
3281 if ((section
->flags
& SEC_READONLY
) != 0)
3283 if (value
< htab
->text_segment_base
)
3284 htab
->text_segment_base
= value
;
3288 if (value
< htab
->data_segment_base
)
3289 htab
->data_segment_base
= value
;
3294 /* Perform a relocation as part of a final link. */
3296 static bfd_reloc_status_type
3297 final_link_relocate (asection
*input_section
,
3299 const Elf_Internal_Rela
*rela
,
3301 struct elf32_hppa_link_hash_table
*htab
,
3303 struct elf32_hppa_link_hash_entry
*hh
,
3304 struct bfd_link_info
*info
)
3307 unsigned int r_type
= ELF32_R_TYPE (rela
->r_info
);
3308 unsigned int orig_r_type
= r_type
;
3309 reloc_howto_type
*howto
= elf_hppa_howto_table
+ r_type
;
3310 int r_format
= howto
->bitsize
;
3311 enum hppa_reloc_field_selector_type_alt r_field
;
3312 bfd
*input_bfd
= input_section
->owner
;
3313 bfd_vma offset
= rela
->r_offset
;
3314 bfd_vma max_branch_offset
= 0;
3315 bfd_byte
*hit_data
= contents
+ offset
;
3316 bfd_signed_vma addend
= rela
->r_addend
;
3318 struct elf32_hppa_stub_hash_entry
*hsh
= NULL
;
3321 if (r_type
== R_PARISC_NONE
)
3322 return bfd_reloc_ok
;
3324 insn
= bfd_get_32 (input_bfd
, hit_data
);
3326 /* Find out where we are and where we're going. */
3327 location
= (offset
+
3328 input_section
->output_offset
+
3329 input_section
->output_section
->vma
);
3331 /* If we are not building a shared library, convert DLTIND relocs to
3333 if (!bfd_link_pic (info
))
3337 case R_PARISC_DLTIND21L
:
3338 case R_PARISC_TLS_GD21L
:
3339 case R_PARISC_TLS_LDM21L
:
3340 case R_PARISC_TLS_IE21L
:
3341 r_type
= R_PARISC_DPREL21L
;
3344 case R_PARISC_DLTIND14R
:
3345 case R_PARISC_TLS_GD14R
:
3346 case R_PARISC_TLS_LDM14R
:
3347 case R_PARISC_TLS_IE14R
:
3348 r_type
= R_PARISC_DPREL14R
;
3351 case R_PARISC_DLTIND14F
:
3352 r_type
= R_PARISC_DPREL14F
;
3359 case R_PARISC_PCREL12F
:
3360 case R_PARISC_PCREL17F
:
3361 case R_PARISC_PCREL22F
:
3362 /* If this call should go via the plt, find the import stub in
3365 || sym_sec
->output_section
== NULL
3367 && hh
->eh
.plt
.offset
!= (bfd_vma
) -1
3368 && hh
->eh
.dynindx
!= -1
3370 && (bfd_link_pic (info
)
3371 || !hh
->eh
.def_regular
3372 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)))
3374 hsh
= hppa_get_stub_entry (input_section
, sym_sec
,
3378 value
= (hsh
->stub_offset
3379 + hsh
->stub_sec
->output_offset
3380 + hsh
->stub_sec
->output_section
->vma
);
3383 else if (sym_sec
== NULL
&& hh
!= NULL
3384 && hh
->eh
.root
.type
== bfd_link_hash_undefweak
)
3386 /* It's OK if undefined weak. Calls to undefined weak
3387 symbols behave as if the "called" function
3388 immediately returns. We can thus call to a weak
3389 function without first checking whether the function
3395 return bfd_reloc_undefined
;
3399 case R_PARISC_PCREL21L
:
3400 case R_PARISC_PCREL17C
:
3401 case R_PARISC_PCREL17R
:
3402 case R_PARISC_PCREL14R
:
3403 case R_PARISC_PCREL14F
:
3404 case R_PARISC_PCREL32
:
3405 /* Make it a pc relative offset. */
3410 case R_PARISC_DPREL21L
:
3411 case R_PARISC_DPREL14R
:
3412 case R_PARISC_DPREL14F
:
3413 /* Convert instructions that use the linkage table pointer (r19) to
3414 instructions that use the global data pointer (dp). This is the
3415 most efficient way of using PIC code in an incomplete executable,
3416 but the user must follow the standard runtime conventions for
3417 accessing data for this to work. */
3418 if (orig_r_type
!= r_type
)
3420 if (r_type
== R_PARISC_DPREL21L
)
3422 /* GCC sometimes uses a register other than r19 for the
3423 operation, so we must convert any addil instruction
3424 that uses this relocation. */
3425 if ((insn
& 0xfc000000) == ((int) OP_ADDIL
<< 26))
3428 /* We must have a ldil instruction. It's too hard to find
3429 and convert the associated add instruction, so issue an
3432 /* xgettext:c-format */
3433 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3440 else if (r_type
== R_PARISC_DPREL14F
)
3442 /* This must be a format 1 load/store. Change the base
3444 insn
= (insn
& 0xfc1ffff) | (27 << 21);
3448 /* For all the DP relative relocations, we need to examine the symbol's
3449 section. If it has no section or if it's a code section, then
3450 "data pointer relative" makes no sense. In that case we don't
3451 adjust the "value", and for 21 bit addil instructions, we change the
3452 source addend register from %dp to %r0. This situation commonly
3453 arises for undefined weak symbols and when a variable's "constness"
3454 is declared differently from the way the variable is defined. For
3455 instance: "extern int foo" with foo defined as "const int foo". */
3456 if (sym_sec
== NULL
|| (sym_sec
->flags
& SEC_CODE
) != 0)
3458 if ((insn
& ((0x3f << 26) | (0x1f << 21)))
3459 == (((int) OP_ADDIL
<< 26) | (27 << 21)))
3461 insn
&= ~ (0x1f << 21);
3463 /* Now try to make things easy for the dynamic linker. */
3469 case R_PARISC_DLTIND21L
:
3470 case R_PARISC_DLTIND14R
:
3471 case R_PARISC_DLTIND14F
:
3472 case R_PARISC_TLS_GD21L
:
3473 case R_PARISC_TLS_LDM21L
:
3474 case R_PARISC_TLS_IE21L
:
3475 case R_PARISC_TLS_GD14R
:
3476 case R_PARISC_TLS_LDM14R
:
3477 case R_PARISC_TLS_IE14R
:
3478 value
-= elf_gp (input_section
->output_section
->owner
);
3481 case R_PARISC_SEGREL32
:
3482 if ((sym_sec
->flags
& SEC_CODE
) != 0)
3483 value
-= htab
->text_segment_base
;
3485 value
-= htab
->data_segment_base
;
3494 case R_PARISC_DIR32
:
3495 case R_PARISC_DIR14F
:
3496 case R_PARISC_DIR17F
:
3497 case R_PARISC_PCREL17C
:
3498 case R_PARISC_PCREL14F
:
3499 case R_PARISC_PCREL32
:
3500 case R_PARISC_DPREL14F
:
3501 case R_PARISC_PLABEL32
:
3502 case R_PARISC_DLTIND14F
:
3503 case R_PARISC_SEGBASE
:
3504 case R_PARISC_SEGREL32
:
3505 case R_PARISC_TLS_DTPMOD32
:
3506 case R_PARISC_TLS_DTPOFF32
:
3507 case R_PARISC_TLS_TPREL32
:
3511 case R_PARISC_DLTIND21L
:
3512 case R_PARISC_PCREL21L
:
3513 case R_PARISC_PLABEL21L
:
3517 case R_PARISC_DIR21L
:
3518 case R_PARISC_DPREL21L
:
3519 case R_PARISC_TLS_GD21L
:
3520 case R_PARISC_TLS_LDM21L
:
3521 case R_PARISC_TLS_LDO21L
:
3522 case R_PARISC_TLS_IE21L
:
3523 case R_PARISC_TLS_LE21L
:
3527 case R_PARISC_PCREL17R
:
3528 case R_PARISC_PCREL14R
:
3529 case R_PARISC_PLABEL14R
:
3530 case R_PARISC_DLTIND14R
:
3534 case R_PARISC_DIR17R
:
3535 case R_PARISC_DIR14R
:
3536 case R_PARISC_DPREL14R
:
3537 case R_PARISC_TLS_GD14R
:
3538 case R_PARISC_TLS_LDM14R
:
3539 case R_PARISC_TLS_LDO14R
:
3540 case R_PARISC_TLS_IE14R
:
3541 case R_PARISC_TLS_LE14R
:
3545 case R_PARISC_PCREL12F
:
3546 case R_PARISC_PCREL17F
:
3547 case R_PARISC_PCREL22F
:
3550 if (r_type
== (unsigned int) R_PARISC_PCREL17F
)
3552 max_branch_offset
= (1 << (17-1)) << 2;
3554 else if (r_type
== (unsigned int) R_PARISC_PCREL12F
)
3556 max_branch_offset
= (1 << (12-1)) << 2;
3560 max_branch_offset
= (1 << (22-1)) << 2;
3563 /* sym_sec is NULL on undefined weak syms or when shared on
3564 undefined syms. We've already checked for a stub for the
3565 shared undefined case. */
3566 if (sym_sec
== NULL
)
3569 /* If the branch is out of reach, then redirect the
3570 call to the local stub for this function. */
3571 if (value
+ addend
+ max_branch_offset
>= 2*max_branch_offset
)
3573 hsh
= hppa_get_stub_entry (input_section
, sym_sec
,
3576 return bfd_reloc_undefined
;
3578 /* Munge up the value and addend so that we call the stub
3579 rather than the procedure directly. */
3580 value
= (hsh
->stub_offset
3581 + hsh
->stub_sec
->output_offset
3582 + hsh
->stub_sec
->output_section
->vma
3588 /* Something we don't know how to handle. */
3590 return bfd_reloc_notsupported
;
3593 /* Make sure we can reach the stub. */
3594 if (max_branch_offset
!= 0
3595 && value
+ addend
+ max_branch_offset
>= 2*max_branch_offset
)
3598 /* xgettext:c-format */
3599 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3603 hsh
->bh_root
.string
);
3604 bfd_set_error (bfd_error_bad_value
);
3605 return bfd_reloc_notsupported
;
3608 val
= hppa_field_adjust (value
, addend
, r_field
);
3612 case R_PARISC_PCREL12F
:
3613 case R_PARISC_PCREL17C
:
3614 case R_PARISC_PCREL17F
:
3615 case R_PARISC_PCREL17R
:
3616 case R_PARISC_PCREL22F
:
3617 case R_PARISC_DIR17F
:
3618 case R_PARISC_DIR17R
:
3619 /* This is a branch. Divide the offset by four.
3620 Note that we need to decide whether it's a branch or
3621 otherwise by inspecting the reloc. Inspecting insn won't
3622 work as insn might be from a .word directive. */
3630 insn
= hppa_rebuild_insn (insn
, val
, r_format
);
3632 /* Update the instruction word. */
3633 bfd_put_32 (input_bfd
, (bfd_vma
) insn
, hit_data
);
3634 return bfd_reloc_ok
;
3637 /* Relocate an HPPA ELF section. */
3640 elf32_hppa_relocate_section (bfd
*output_bfd
,
3641 struct bfd_link_info
*info
,
3643 asection
*input_section
,
3645 Elf_Internal_Rela
*relocs
,
3646 Elf_Internal_Sym
*local_syms
,
3647 asection
**local_sections
)
3649 bfd_vma
*local_got_offsets
;
3650 struct elf32_hppa_link_hash_table
*htab
;
3651 Elf_Internal_Shdr
*symtab_hdr
;
3652 Elf_Internal_Rela
*rela
;
3653 Elf_Internal_Rela
*relend
;
3655 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3657 htab
= hppa_link_hash_table (info
);
3661 local_got_offsets
= elf_local_got_offsets (input_bfd
);
3664 relend
= relocs
+ input_section
->reloc_count
;
3665 for (; rela
< relend
; rela
++)
3667 unsigned int r_type
;
3668 reloc_howto_type
*howto
;
3669 unsigned int r_symndx
;
3670 struct elf32_hppa_link_hash_entry
*hh
;
3671 Elf_Internal_Sym
*sym
;
3674 bfd_reloc_status_type rstatus
;
3675 const char *sym_name
;
3677 bfd_boolean warned_undef
;
3679 r_type
= ELF32_R_TYPE (rela
->r_info
);
3680 if (r_type
>= (unsigned int) R_PARISC_UNIMPLEMENTED
)
3682 bfd_set_error (bfd_error_bad_value
);
3685 if (r_type
== (unsigned int) R_PARISC_GNU_VTENTRY
3686 || r_type
== (unsigned int) R_PARISC_GNU_VTINHERIT
)
3689 r_symndx
= ELF32_R_SYM (rela
->r_info
);
3693 warned_undef
= FALSE
;
3694 if (r_symndx
< symtab_hdr
->sh_info
)
3696 /* This is a local symbol, h defaults to NULL. */
3697 sym
= local_syms
+ r_symndx
;
3698 sym_sec
= local_sections
[r_symndx
];
3699 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sym_sec
, rela
);
3703 struct elf_link_hash_entry
*eh
;
3704 bfd_boolean unresolved_reloc
, ignored
;
3705 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
3707 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rela
,
3708 r_symndx
, symtab_hdr
, sym_hashes
,
3709 eh
, sym_sec
, relocation
,
3710 unresolved_reloc
, warned_undef
,
3713 if (!bfd_link_relocatable (info
)
3715 && eh
->root
.type
!= bfd_link_hash_defined
3716 && eh
->root
.type
!= bfd_link_hash_defweak
3717 && eh
->root
.type
!= bfd_link_hash_undefweak
)
3719 if (info
->unresolved_syms_in_objects
== RM_IGNORE
3720 && ELF_ST_VISIBILITY (eh
->other
) == STV_DEFAULT
3721 && eh
->type
== STT_PARISC_MILLI
)
3723 (*info
->callbacks
->undefined_symbol
)
3724 (info
, eh_name (eh
), input_bfd
,
3725 input_section
, rela
->r_offset
, FALSE
);
3726 warned_undef
= TRUE
;
3729 hh
= hppa_elf_hash_entry (eh
);
3732 if (sym_sec
!= NULL
&& discarded_section (sym_sec
))
3733 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
3735 elf_hppa_howto_table
+ r_type
, 0,
3738 if (bfd_link_relocatable (info
))
3741 /* Do any required modifications to the relocation value, and
3742 determine what types of dynamic info we need to output, if
3747 case R_PARISC_DLTIND14F
:
3748 case R_PARISC_DLTIND14R
:
3749 case R_PARISC_DLTIND21L
:
3752 bfd_boolean do_got
= 0;
3754 /* Relocation is to the entry for this symbol in the
3755 global offset table. */
3760 off
= hh
->eh
.got
.offset
;
3761 dyn
= htab
->etab
.dynamic_sections_created
;
3762 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
3763 bfd_link_pic (info
),
3766 /* If we aren't going to call finish_dynamic_symbol,
3767 then we need to handle initialisation of the .got
3768 entry and create needed relocs here. Since the
3769 offset must always be a multiple of 4, we use the
3770 least significant bit to record whether we have
3771 initialised it already. */
3776 hh
->eh
.got
.offset
|= 1;
3783 /* Local symbol case. */
3784 if (local_got_offsets
== NULL
)
3787 off
= local_got_offsets
[r_symndx
];
3789 /* The offset must always be a multiple of 4. We use
3790 the least significant bit to record whether we have
3791 already generated the necessary reloc. */
3796 local_got_offsets
[r_symndx
] |= 1;
3803 if (bfd_link_pic (info
))
3805 /* Output a dynamic relocation for this GOT entry.
3806 In this case it is relative to the base of the
3807 object because the symbol index is zero. */
3808 Elf_Internal_Rela outrel
;
3810 asection
*sec
= htab
->etab
.srelgot
;
3812 outrel
.r_offset
= (off
3813 + htab
->etab
.sgot
->output_offset
3814 + htab
->etab
.sgot
->output_section
->vma
);
3815 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_DIR32
);
3816 outrel
.r_addend
= relocation
;
3817 loc
= sec
->contents
;
3818 loc
+= sec
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3819 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3822 bfd_put_32 (output_bfd
, relocation
,
3823 htab
->etab
.sgot
->contents
+ off
);
3826 if (off
>= (bfd_vma
) -2)
3829 /* Add the base of the GOT to the relocation value. */
3831 + htab
->etab
.sgot
->output_offset
3832 + htab
->etab
.sgot
->output_section
->vma
);
3836 case R_PARISC_SEGREL32
:
3837 /* If this is the first SEGREL relocation, then initialize
3838 the segment base values. */
3839 if (htab
->text_segment_base
== (bfd_vma
) -1)
3840 bfd_map_over_sections (output_bfd
, hppa_record_segment_addr
, htab
);
3843 case R_PARISC_PLABEL14R
:
3844 case R_PARISC_PLABEL21L
:
3845 case R_PARISC_PLABEL32
:
3846 if (htab
->etab
.dynamic_sections_created
)
3849 bfd_boolean do_plt
= 0;
3850 /* If we have a global symbol with a PLT slot, then
3851 redirect this relocation to it. */
3854 off
= hh
->eh
.plt
.offset
;
3855 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3856 bfd_link_pic (info
),
3859 /* In a non-shared link, adjust_dynamic_symbols
3860 isn't called for symbols forced local. We
3861 need to write out the plt entry here. */
3866 hh
->eh
.plt
.offset
|= 1;
3873 bfd_vma
*local_plt_offsets
;
3875 if (local_got_offsets
== NULL
)
3878 local_plt_offsets
= local_got_offsets
+ symtab_hdr
->sh_info
;
3879 off
= local_plt_offsets
[r_symndx
];
3881 /* As for the local .got entry case, we use the last
3882 bit to record whether we've already initialised
3883 this local .plt entry. */
3888 local_plt_offsets
[r_symndx
] |= 1;
3895 if (bfd_link_pic (info
))
3897 /* Output a dynamic IPLT relocation for this
3899 Elf_Internal_Rela outrel
;
3901 asection
*s
= htab
->etab
.srelplt
;
3903 outrel
.r_offset
= (off
3904 + htab
->etab
.splt
->output_offset
3905 + htab
->etab
.splt
->output_section
->vma
);
3906 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_IPLT
);
3907 outrel
.r_addend
= relocation
;
3909 loc
+= s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3910 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3914 bfd_put_32 (output_bfd
,
3916 htab
->etab
.splt
->contents
+ off
);
3917 bfd_put_32 (output_bfd
,
3918 elf_gp (htab
->etab
.splt
->output_section
->owner
),
3919 htab
->etab
.splt
->contents
+ off
+ 4);
3923 if (off
>= (bfd_vma
) -2)
3926 /* PLABELs contain function pointers. Relocation is to
3927 the entry for the function in the .plt. The magic +2
3928 offset signals to $$dyncall that the function pointer
3929 is in the .plt and thus has a gp pointer too.
3930 Exception: Undefined PLABELs should have a value of
3933 || (hh
->eh
.root
.type
!= bfd_link_hash_undefweak
3934 && hh
->eh
.root
.type
!= bfd_link_hash_undefined
))
3937 + htab
->etab
.splt
->output_offset
3938 + htab
->etab
.splt
->output_section
->vma
3945 case R_PARISC_DIR17F
:
3946 case R_PARISC_DIR17R
:
3947 case R_PARISC_DIR14F
:
3948 case R_PARISC_DIR14R
:
3949 case R_PARISC_DIR21L
:
3950 case R_PARISC_DPREL14F
:
3951 case R_PARISC_DPREL14R
:
3952 case R_PARISC_DPREL21L
:
3953 case R_PARISC_DIR32
:
3954 if ((input_section
->flags
& SEC_ALLOC
) == 0)
3957 /* The reloc types handled here and this conditional
3958 expression must match the code in ..check_relocs and
3959 allocate_dynrelocs. ie. We need exactly the same condition
3960 as in ..check_relocs, with some extra conditions (dynindx
3961 test in this case) to cater for relocs removed by
3962 allocate_dynrelocs. If you squint, the non-shared test
3963 here does indeed match the one in ..check_relocs, the
3964 difference being that here we test DEF_DYNAMIC as well as
3965 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3966 which is why we can't use just that test here.
3967 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3968 there all files have not been loaded. */
3969 if ((bfd_link_pic (info
)
3971 || ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
3972 || hh
->eh
.root
.type
!= bfd_link_hash_undefweak
)
3973 && (IS_ABSOLUTE_RELOC (r_type
)
3974 || !SYMBOL_CALLS_LOCAL (info
, &hh
->eh
)))
3975 || (!bfd_link_pic (info
)
3977 && hh
->eh
.dynindx
!= -1
3978 && !hh
->eh
.non_got_ref
3979 && ((ELIMINATE_COPY_RELOCS
3980 && hh
->eh
.def_dynamic
3981 && !hh
->eh
.def_regular
)
3982 || hh
->eh
.root
.type
== bfd_link_hash_undefweak
3983 || hh
->eh
.root
.type
== bfd_link_hash_undefined
)))
3985 Elf_Internal_Rela outrel
;
3990 /* When generating a shared object, these relocations
3991 are copied into the output file to be resolved at run
3994 outrel
.r_addend
= rela
->r_addend
;
3996 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
3998 skip
= (outrel
.r_offset
== (bfd_vma
) -1
3999 || outrel
.r_offset
== (bfd_vma
) -2);
4000 outrel
.r_offset
+= (input_section
->output_offset
4001 + input_section
->output_section
->vma
);
4005 memset (&outrel
, 0, sizeof (outrel
));
4008 && hh
->eh
.dynindx
!= -1
4010 || !IS_ABSOLUTE_RELOC (r_type
)
4011 || !bfd_link_pic (info
)
4012 || !SYMBOLIC_BIND (info
, &hh
->eh
)
4013 || !hh
->eh
.def_regular
))
4015 outrel
.r_info
= ELF32_R_INFO (hh
->eh
.dynindx
, r_type
);
4017 else /* It's a local symbol, or one marked to become local. */
4021 /* Add the absolute offset of the symbol. */
4022 outrel
.r_addend
+= relocation
;
4024 /* Global plabels need to be processed by the
4025 dynamic linker so that functions have at most one
4026 fptr. For this reason, we need to differentiate
4027 between global and local plabels, which we do by
4028 providing the function symbol for a global plabel
4029 reloc, and no symbol for local plabels. */
4032 && sym_sec
->output_section
!= NULL
4033 && ! bfd_is_abs_section (sym_sec
))
4037 osec
= sym_sec
->output_section
;
4038 indx
= elf_section_data (osec
)->dynindx
;
4041 osec
= htab
->etab
.text_index_section
;
4042 indx
= elf_section_data (osec
)->dynindx
;
4044 BFD_ASSERT (indx
!= 0);
4046 /* We are turning this relocation into one
4047 against a section symbol, so subtract out the
4048 output section's address but not the offset
4049 of the input section in the output section. */
4050 outrel
.r_addend
-= osec
->vma
;
4053 outrel
.r_info
= ELF32_R_INFO (indx
, r_type
);
4055 sreloc
= elf_section_data (input_section
)->sreloc
;
4059 loc
= sreloc
->contents
;
4060 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4061 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4065 case R_PARISC_TLS_LDM21L
:
4066 case R_PARISC_TLS_LDM14R
:
4070 off
= htab
->tls_ldm_got
.offset
;
4075 Elf_Internal_Rela outrel
;
4078 outrel
.r_offset
= (off
4079 + htab
->etab
.sgot
->output_section
->vma
4080 + htab
->etab
.sgot
->output_offset
);
4081 outrel
.r_addend
= 0;
4082 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32
);
4083 loc
= htab
->etab
.srelgot
->contents
;
4084 loc
+= htab
->etab
.srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4086 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4087 htab
->tls_ldm_got
.offset
|= 1;
4090 /* Add the base of the GOT to the relocation value. */
4092 + htab
->etab
.sgot
->output_offset
4093 + htab
->etab
.sgot
->output_section
->vma
);
4098 case R_PARISC_TLS_LDO21L
:
4099 case R_PARISC_TLS_LDO14R
:
4100 relocation
-= dtpoff_base (info
);
4103 case R_PARISC_TLS_GD21L
:
4104 case R_PARISC_TLS_GD14R
:
4105 case R_PARISC_TLS_IE21L
:
4106 case R_PARISC_TLS_IE14R
:
4116 dyn
= htab
->etab
.dynamic_sections_created
;
4118 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
4119 bfd_link_pic (info
),
4121 && (!bfd_link_pic (info
)
4122 || !SYMBOL_REFERENCES_LOCAL (info
, &hh
->eh
)))
4124 indx
= hh
->eh
.dynindx
;
4126 off
= hh
->eh
.got
.offset
;
4127 tls_type
= hh
->tls_type
;
4131 off
= local_got_offsets
[r_symndx
];
4132 tls_type
= hppa_elf_local_got_tls_type (input_bfd
)[r_symndx
];
4135 if (tls_type
== GOT_UNKNOWN
)
4142 bfd_boolean need_relocs
= FALSE
;
4143 Elf_Internal_Rela outrel
;
4144 bfd_byte
*loc
= NULL
;
4147 /* The GOT entries have not been initialized yet. Do it
4148 now, and emit any relocations. If both an IE GOT and a
4149 GD GOT are necessary, we emit the GD first. */
4151 if ((bfd_link_pic (info
) || indx
!= 0)
4153 || ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
4154 || hh
->eh
.root
.type
!= bfd_link_hash_undefweak
))
4157 loc
= htab
->etab
.srelgot
->contents
;
4158 /* FIXME (CAO): Should this be reloc_count++ ? */
4159 loc
+= htab
->etab
.srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
4162 if (tls_type
& GOT_TLS_GD
)
4166 outrel
.r_offset
= (cur_off
4167 + htab
->etab
.sgot
->output_section
->vma
4168 + htab
->etab
.sgot
->output_offset
);
4169 outrel
.r_info
= ELF32_R_INFO (indx
,R_PARISC_TLS_DTPMOD32
);
4170 outrel
.r_addend
= 0;
4171 bfd_put_32 (output_bfd
, 0, htab
->etab
.sgot
->contents
+ cur_off
);
4172 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4173 htab
->etab
.srelgot
->reloc_count
++;
4174 loc
+= sizeof (Elf32_External_Rela
);
4177 bfd_put_32 (output_bfd
, relocation
- dtpoff_base (info
),
4178 htab
->etab
.sgot
->contents
+ cur_off
+ 4);
4181 bfd_put_32 (output_bfd
, 0,
4182 htab
->etab
.sgot
->contents
+ cur_off
+ 4);
4183 outrel
.r_info
= ELF32_R_INFO (indx
, R_PARISC_TLS_DTPOFF32
);
4184 outrel
.r_offset
+= 4;
4185 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,loc
);
4186 htab
->etab
.srelgot
->reloc_count
++;
4187 loc
+= sizeof (Elf32_External_Rela
);
4192 /* If we are not emitting relocations for a
4193 general dynamic reference, then we must be in a
4194 static link or an executable link with the
4195 symbol binding locally. Mark it as belonging
4196 to module 1, the executable. */
4197 bfd_put_32 (output_bfd
, 1,
4198 htab
->etab
.sgot
->contents
+ cur_off
);
4199 bfd_put_32 (output_bfd
, relocation
- dtpoff_base (info
),
4200 htab
->etab
.sgot
->contents
+ cur_off
+ 4);
4207 if (tls_type
& GOT_TLS_IE
)
4211 outrel
.r_offset
= (cur_off
4212 + htab
->etab
.sgot
->output_section
->vma
4213 + htab
->etab
.sgot
->output_offset
);
4214 outrel
.r_info
= ELF32_R_INFO (indx
, R_PARISC_TLS_TPREL32
);
4217 outrel
.r_addend
= relocation
- dtpoff_base (info
);
4219 outrel
.r_addend
= 0;
4221 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4222 htab
->etab
.srelgot
->reloc_count
++;
4223 loc
+= sizeof (Elf32_External_Rela
);
4226 bfd_put_32 (output_bfd
, tpoff (info
, relocation
),
4227 htab
->etab
.sgot
->contents
+ cur_off
);
4233 hh
->eh
.got
.offset
|= 1;
4235 local_got_offsets
[r_symndx
] |= 1;
4238 if ((tls_type
& GOT_TLS_GD
)
4239 && r_type
!= R_PARISC_TLS_GD21L
4240 && r_type
!= R_PARISC_TLS_GD14R
)
4241 off
+= 2 * GOT_ENTRY_SIZE
;
4243 /* Add the base of the GOT to the relocation value. */
4245 + htab
->etab
.sgot
->output_offset
4246 + htab
->etab
.sgot
->output_section
->vma
);
4251 case R_PARISC_TLS_LE21L
:
4252 case R_PARISC_TLS_LE14R
:
4254 relocation
= tpoff (info
, relocation
);
4263 rstatus
= final_link_relocate (input_section
, contents
, rela
, relocation
,
4264 htab
, sym_sec
, hh
, info
);
4266 if (rstatus
== bfd_reloc_ok
)
4270 sym_name
= hh_name (hh
);
4273 sym_name
= bfd_elf_string_from_elf_section (input_bfd
,
4274 symtab_hdr
->sh_link
,
4276 if (sym_name
== NULL
)
4278 if (*sym_name
== '\0')
4279 sym_name
= bfd_section_name (input_bfd
, sym_sec
);
4282 howto
= elf_hppa_howto_table
+ r_type
;
4284 if (rstatus
== bfd_reloc_undefined
|| rstatus
== bfd_reloc_notsupported
)
4286 if (rstatus
== bfd_reloc_notsupported
|| !warned_undef
)
4289 /* xgettext:c-format */
4290 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4293 (long) rela
->r_offset
,
4296 bfd_set_error (bfd_error_bad_value
);
4301 (*info
->callbacks
->reloc_overflow
)
4302 (info
, (hh
? &hh
->eh
.root
: NULL
), sym_name
, howto
->name
,
4303 (bfd_vma
) 0, input_bfd
, input_section
, rela
->r_offset
);
4309 /* Finish up dynamic symbol handling. We set the contents of various
4310 dynamic sections here. */
4313 elf32_hppa_finish_dynamic_symbol (bfd
*output_bfd
,
4314 struct bfd_link_info
*info
,
4315 struct elf_link_hash_entry
*eh
,
4316 Elf_Internal_Sym
*sym
)
4318 struct elf32_hppa_link_hash_table
*htab
;
4319 Elf_Internal_Rela rela
;
4322 htab
= hppa_link_hash_table (info
);
4326 if (eh
->plt
.offset
!= (bfd_vma
) -1)
4330 if (eh
->plt
.offset
& 1)
4333 /* This symbol has an entry in the procedure linkage table. Set
4336 The format of a plt entry is
4341 if (eh
->root
.type
== bfd_link_hash_defined
4342 || eh
->root
.type
== bfd_link_hash_defweak
)
4344 value
= eh
->root
.u
.def
.value
;
4345 if (eh
->root
.u
.def
.section
->output_section
!= NULL
)
4346 value
+= (eh
->root
.u
.def
.section
->output_offset
4347 + eh
->root
.u
.def
.section
->output_section
->vma
);
4350 /* Create a dynamic IPLT relocation for this entry. */
4351 rela
.r_offset
= (eh
->plt
.offset
4352 + htab
->etab
.splt
->output_offset
4353 + htab
->etab
.splt
->output_section
->vma
);
4354 if (eh
->dynindx
!= -1)
4356 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_IPLT
);
4361 /* This symbol has been marked to become local, and is
4362 used by a plabel so must be kept in the .plt. */
4363 rela
.r_info
= ELF32_R_INFO (0, R_PARISC_IPLT
);
4364 rela
.r_addend
= value
;
4367 loc
= htab
->etab
.srelplt
->contents
;
4368 loc
+= htab
->etab
.srelplt
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4369 bfd_elf32_swap_reloca_out (htab
->etab
.splt
->output_section
->owner
, &rela
, loc
);
4371 if (!eh
->def_regular
)
4373 /* Mark the symbol as undefined, rather than as defined in
4374 the .plt section. Leave the value alone. */
4375 sym
->st_shndx
= SHN_UNDEF
;
4379 if (eh
->got
.offset
!= (bfd_vma
) -1
4380 && (hppa_elf_hash_entry (eh
)->tls_type
& GOT_TLS_GD
) == 0
4381 && (hppa_elf_hash_entry (eh
)->tls_type
& GOT_TLS_IE
) == 0)
4383 /* This symbol has an entry in the global offset table. Set it
4386 rela
.r_offset
= ((eh
->got
.offset
&~ (bfd_vma
) 1)
4387 + htab
->etab
.sgot
->output_offset
4388 + htab
->etab
.sgot
->output_section
->vma
);
4390 /* If this is a -Bsymbolic link and the symbol is defined
4391 locally or was forced to be local because of a version file,
4392 we just want to emit a RELATIVE reloc. The entry in the
4393 global offset table will already have been initialized in the
4394 relocate_section function. */
4395 if (bfd_link_pic (info
)
4396 && (SYMBOLIC_BIND (info
, eh
) || eh
->dynindx
== -1)
4399 rela
.r_info
= ELF32_R_INFO (0, R_PARISC_DIR32
);
4400 rela
.r_addend
= (eh
->root
.u
.def
.value
4401 + eh
->root
.u
.def
.section
->output_offset
4402 + eh
->root
.u
.def
.section
->output_section
->vma
);
4406 if ((eh
->got
.offset
& 1) != 0)
4409 bfd_put_32 (output_bfd
, 0, htab
->etab
.sgot
->contents
+ (eh
->got
.offset
& ~1));
4410 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_DIR32
);
4414 loc
= htab
->etab
.srelgot
->contents
;
4415 loc
+= htab
->etab
.srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4416 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4423 /* This symbol needs a copy reloc. Set it up. */
4425 if (! (eh
->dynindx
!= -1
4426 && (eh
->root
.type
== bfd_link_hash_defined
4427 || eh
->root
.type
== bfd_link_hash_defweak
)))
4430 sec
= htab
->etab
.srelbss
;
4432 rela
.r_offset
= (eh
->root
.u
.def
.value
4433 + eh
->root
.u
.def
.section
->output_offset
4434 + eh
->root
.u
.def
.section
->output_section
->vma
);
4436 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_COPY
);
4437 loc
= sec
->contents
+ sec
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4438 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4441 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4442 if (eh
== htab
->etab
.hdynamic
|| eh
== htab
->etab
.hgot
)
4444 sym
->st_shndx
= SHN_ABS
;
4450 /* Used to decide how to sort relocs in an optimal manner for the
4451 dynamic linker, before writing them out. */
4453 static enum elf_reloc_type_class
4454 elf32_hppa_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
4455 const asection
*rel_sec ATTRIBUTE_UNUSED
,
4456 const Elf_Internal_Rela
*rela
)
4458 /* Handle TLS relocs first; we don't want them to be marked
4459 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
4461 switch ((int) ELF32_R_TYPE (rela
->r_info
))
4463 case R_PARISC_TLS_DTPMOD32
:
4464 case R_PARISC_TLS_DTPOFF32
:
4465 case R_PARISC_TLS_TPREL32
:
4466 return reloc_class_normal
;
4469 if (ELF32_R_SYM (rela
->r_info
) == STN_UNDEF
)
4470 return reloc_class_relative
;
4472 switch ((int) ELF32_R_TYPE (rela
->r_info
))
4475 return reloc_class_plt
;
4477 return reloc_class_copy
;
4479 return reloc_class_normal
;
4483 /* Finish up the dynamic sections. */
4486 elf32_hppa_finish_dynamic_sections (bfd
*output_bfd
,
4487 struct bfd_link_info
*info
)
4490 struct elf32_hppa_link_hash_table
*htab
;
4494 htab
= hppa_link_hash_table (info
);
4498 dynobj
= htab
->etab
.dynobj
;
4500 sgot
= htab
->etab
.sgot
;
4501 /* A broken linker script might have discarded the dynamic sections.
4502 Catch this here so that we do not seg-fault later on. */
4503 if (sgot
!= NULL
&& bfd_is_abs_section (sgot
->output_section
))
4506 sdyn
= bfd_get_linker_section (dynobj
, ".dynamic");
4508 if (htab
->etab
.dynamic_sections_created
)
4510 Elf32_External_Dyn
*dyncon
, *dynconend
;
4515 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
4516 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
4517 for (; dyncon
< dynconend
; dyncon
++)
4519 Elf_Internal_Dyn dyn
;
4522 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4530 /* Use PLTGOT to set the GOT register. */
4531 dyn
.d_un
.d_ptr
= elf_gp (output_bfd
);
4535 s
= htab
->etab
.srelplt
;
4536 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
4540 s
= htab
->etab
.srelplt
;
4541 dyn
.d_un
.d_val
= s
->size
;
4545 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
4549 if (sgot
!= NULL
&& sgot
->size
!= 0)
4551 /* Fill in the first entry in the global offset table.
4552 We use it to point to our dynamic section, if we have one. */
4553 bfd_put_32 (output_bfd
,
4554 sdyn
? sdyn
->output_section
->vma
+ sdyn
->output_offset
: 0,
4557 /* The second entry is reserved for use by the dynamic linker. */
4558 memset (sgot
->contents
+ GOT_ENTRY_SIZE
, 0, GOT_ENTRY_SIZE
);
4560 /* Set .got entry size. */
4561 elf_section_data (sgot
->output_section
)
4562 ->this_hdr
.sh_entsize
= GOT_ENTRY_SIZE
;
4565 if (htab
->etab
.splt
!= NULL
&& htab
->etab
.splt
->size
!= 0)
4567 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4568 plt stubs and as such the section does not hold a table of fixed-size
4570 elf_section_data (htab
->etab
.splt
->output_section
)->this_hdr
.sh_entsize
= 0;
4572 if (htab
->need_plt_stub
)
4574 /* Set up the .plt stub. */
4575 memcpy (htab
->etab
.splt
->contents
4576 + htab
->etab
.splt
->size
- sizeof (plt_stub
),
4577 plt_stub
, sizeof (plt_stub
));
4579 if ((htab
->etab
.splt
->output_offset
4580 + htab
->etab
.splt
->output_section
->vma
4581 + htab
->etab
.splt
->size
)
4582 != (sgot
->output_offset
4583 + sgot
->output_section
->vma
))
4586 (_(".got section not immediately after .plt section"));
4595 /* Called when writing out an object file to decide the type of a
4598 elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym
*elf_sym
, int type
)
4600 if (ELF_ST_TYPE (elf_sym
->st_info
) == STT_PARISC_MILLI
)
4601 return STT_PARISC_MILLI
;
4606 /* Misc BFD support code. */
4607 #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4608 #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4609 #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4610 #define elf_info_to_howto elf_hppa_info_to_howto
4611 #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4613 /* Stuff for the BFD linker. */
4614 #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4615 #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4616 #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4617 #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4618 #define elf_backend_check_relocs elf32_hppa_check_relocs
4619 #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4620 #define elf_backend_fake_sections elf_hppa_fake_sections
4621 #define elf_backend_relocate_section elf32_hppa_relocate_section
4622 #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4623 #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4624 #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4625 #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4626 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4627 #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4628 #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
4629 #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4630 #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4631 #define elf_backend_object_p elf32_hppa_object_p
4632 #define elf_backend_final_write_processing elf_hppa_final_write_processing
4633 #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4634 #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4635 #define elf_backend_action_discarded elf_hppa_action_discarded
4637 #define elf_backend_can_gc_sections 1
4638 #define elf_backend_can_refcount 1
4639 #define elf_backend_plt_alignment 2
4640 #define elf_backend_want_got_plt 0
4641 #define elf_backend_plt_readonly 0
4642 #define elf_backend_want_plt_sym 0
4643 #define elf_backend_got_header_size 8
4644 #define elf_backend_rela_normal 1
4645 #define elf_backend_dtrel_excludes_plt 1
4647 #define TARGET_BIG_SYM hppa_elf32_vec
4648 #define TARGET_BIG_NAME "elf32-hppa"
4649 #define ELF_ARCH bfd_arch_hppa
4650 #define ELF_TARGET_ID HPPA32_ELF_DATA
4651 #define ELF_MACHINE_CODE EM_PARISC
4652 #define ELF_MAXPAGESIZE 0x1000
4653 #define ELF_OSABI ELFOSABI_HPUX
4654 #define elf32_bed elf32_hppa_hpux_bed
4656 #include "elf32-target.h"
4658 #undef TARGET_BIG_SYM
4659 #define TARGET_BIG_SYM hppa_elf32_linux_vec
4660 #undef TARGET_BIG_NAME
4661 #define TARGET_BIG_NAME "elf32-hppa-linux"
4663 #define ELF_OSABI ELFOSABI_GNU
4665 #define elf32_bed elf32_hppa_linux_bed
4667 #include "elf32-target.h"
4669 #undef TARGET_BIG_SYM
4670 #define TARGET_BIG_SYM hppa_elf32_nbsd_vec
4671 #undef TARGET_BIG_NAME
4672 #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4674 #define ELF_OSABI ELFOSABI_NETBSD
4676 #define elf32_bed elf32_hppa_netbsd_bed
4678 #include "elf32-target.h"