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
;
1796 asection
*sec
, *srel
;
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_READONLY
) != 0)
1904 sec
= htab
->etab
.sdynrelro
;
1905 srel
= htab
->etab
.sreldynrelro
;
1909 sec
= htab
->etab
.sdynbss
;
1910 srel
= htab
->etab
.srelbss
;
1912 if ((eh
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && eh
->size
!= 0)
1914 srel
->size
+= sizeof (Elf32_External_Rela
);
1918 return _bfd_elf_adjust_dynamic_copy (info
, eh
, sec
);
1921 /* Allocate space in the .plt for entries that won't have relocations.
1922 ie. plabel entries. */
1925 allocate_plt_static (struct elf_link_hash_entry
*eh
, void *inf
)
1927 struct bfd_link_info
*info
;
1928 struct elf32_hppa_link_hash_table
*htab
;
1929 struct elf32_hppa_link_hash_entry
*hh
;
1932 if (eh
->root
.type
== bfd_link_hash_indirect
)
1935 info
= (struct bfd_link_info
*) inf
;
1936 hh
= hppa_elf_hash_entry (eh
);
1937 htab
= hppa_link_hash_table (info
);
1941 if (htab
->etab
.dynamic_sections_created
1942 && eh
->plt
.refcount
> 0)
1944 /* Make sure this symbol is output as a dynamic symbol.
1945 Undefined weak syms won't yet be marked as dynamic. */
1946 if (eh
->dynindx
== -1
1947 && !eh
->forced_local
1948 && eh
->type
!= STT_PARISC_MILLI
)
1950 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
1954 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info
), eh
))
1956 /* Allocate these later. From this point on, h->plabel
1957 means that the plt entry is only used by a plabel.
1958 We'll be using a normal plt entry for this symbol, so
1959 clear the plabel indicator. */
1963 else if (hh
->plabel
)
1965 /* Make an entry in the .plt section for plabel references
1966 that won't have a .plt entry for other reasons. */
1967 sec
= htab
->etab
.splt
;
1968 eh
->plt
.offset
= sec
->size
;
1969 sec
->size
+= PLT_ENTRY_SIZE
;
1973 /* No .plt entry needed. */
1974 eh
->plt
.offset
= (bfd_vma
) -1;
1980 eh
->plt
.offset
= (bfd_vma
) -1;
1987 /* Allocate space in .plt, .got and associated reloc sections for
1991 allocate_dynrelocs (struct elf_link_hash_entry
*eh
, void *inf
)
1993 struct bfd_link_info
*info
;
1994 struct elf32_hppa_link_hash_table
*htab
;
1996 struct elf32_hppa_link_hash_entry
*hh
;
1997 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1999 if (eh
->root
.type
== bfd_link_hash_indirect
)
2003 htab
= hppa_link_hash_table (info
);
2007 hh
= hppa_elf_hash_entry (eh
);
2009 if (htab
->etab
.dynamic_sections_created
2010 && eh
->plt
.offset
!= (bfd_vma
) -1
2012 && eh
->plt
.refcount
> 0)
2014 /* Make an entry in the .plt section. */
2015 sec
= htab
->etab
.splt
;
2016 eh
->plt
.offset
= sec
->size
;
2017 sec
->size
+= PLT_ENTRY_SIZE
;
2019 /* We also need to make an entry in the .rela.plt section. */
2020 htab
->etab
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
2021 htab
->need_plt_stub
= 1;
2024 if (eh
->got
.refcount
> 0)
2026 /* Make sure this symbol is output as a dynamic symbol.
2027 Undefined weak syms won't yet be marked as dynamic. */
2028 if (eh
->dynindx
== -1
2029 && !eh
->forced_local
2030 && eh
->type
!= STT_PARISC_MILLI
)
2032 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
2036 sec
= htab
->etab
.sgot
;
2037 eh
->got
.offset
= sec
->size
;
2038 sec
->size
+= GOT_ENTRY_SIZE
;
2039 /* R_PARISC_TLS_GD* needs two GOT entries */
2040 if ((hh
->tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2041 sec
->size
+= GOT_ENTRY_SIZE
* 2;
2042 else if ((hh
->tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2043 sec
->size
+= GOT_ENTRY_SIZE
;
2044 if (htab
->etab
.dynamic_sections_created
2045 && (bfd_link_pic (info
)
2046 || (eh
->dynindx
!= -1
2047 && !eh
->forced_local
)))
2049 htab
->etab
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
2050 if ((hh
->tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2051 htab
->etab
.srelgot
->size
+= 2 * sizeof (Elf32_External_Rela
);
2052 else if ((hh
->tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2053 htab
->etab
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
2057 eh
->got
.offset
= (bfd_vma
) -1;
2059 if (hh
->dyn_relocs
== NULL
)
2062 /* If this is a -Bsymbolic shared link, then we need to discard all
2063 space allocated for dynamic pc-relative relocs against symbols
2064 defined in a regular object. For the normal shared case, discard
2065 space for relocs that have become local due to symbol visibility
2067 if (bfd_link_pic (info
))
2069 #if RELATIVE_DYNRELOCS
2070 if (SYMBOL_CALLS_LOCAL (info
, eh
))
2072 struct elf32_hppa_dyn_reloc_entry
**hdh_pp
;
2074 for (hdh_pp
= &hh
->dyn_relocs
; (hdh_p
= *hdh_pp
) != NULL
; )
2076 hdh_p
->count
-= hdh_p
->relative_count
;
2077 hdh_p
->relative_count
= 0;
2078 if (hdh_p
->count
== 0)
2079 *hdh_pp
= hdh_p
->hdh_next
;
2081 hdh_pp
= &hdh_p
->hdh_next
;
2086 /* Also discard relocs on undefined weak syms with non-default
2088 if (hh
->dyn_relocs
!= NULL
2089 && eh
->root
.type
== bfd_link_hash_undefweak
)
2091 if (ELF_ST_VISIBILITY (eh
->other
) != STV_DEFAULT
)
2092 hh
->dyn_relocs
= NULL
;
2094 /* Make sure undefined weak symbols are output as a dynamic
2096 else if (eh
->dynindx
== -1
2097 && !eh
->forced_local
)
2099 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
2106 /* For the non-shared case, discard space for relocs against
2107 symbols which turn out to need copy relocs or are not
2110 if (!eh
->non_got_ref
2111 && ((ELIMINATE_COPY_RELOCS
2113 && !eh
->def_regular
)
2114 || (htab
->etab
.dynamic_sections_created
2115 && (eh
->root
.type
== bfd_link_hash_undefweak
2116 || eh
->root
.type
== bfd_link_hash_undefined
))))
2118 /* Make sure this symbol is output as a dynamic symbol.
2119 Undefined weak syms won't yet be marked as dynamic. */
2120 if (eh
->dynindx
== -1
2121 && !eh
->forced_local
2122 && eh
->type
!= STT_PARISC_MILLI
)
2124 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
2128 /* If that succeeded, we know we'll be keeping all the
2130 if (eh
->dynindx
!= -1)
2134 hh
->dyn_relocs
= NULL
;
2140 /* Finally, allocate space. */
2141 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
2143 asection
*sreloc
= elf_section_data (hdh_p
->sec
)->sreloc
;
2144 sreloc
->size
+= hdh_p
->count
* sizeof (Elf32_External_Rela
);
2150 /* This function is called via elf_link_hash_traverse to force
2151 millicode symbols local so they do not end up as globals in the
2152 dynamic symbol table. We ought to be able to do this in
2153 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2154 for all dynamic symbols. Arguably, this is a bug in
2155 elf_adjust_dynamic_symbol. */
2158 clobber_millicode_symbols (struct elf_link_hash_entry
*eh
,
2159 struct bfd_link_info
*info
)
2161 if (eh
->type
== STT_PARISC_MILLI
2162 && !eh
->forced_local
)
2164 elf32_hppa_hide_symbol (info
, eh
, TRUE
);
2169 /* Find any dynamic relocs that apply to read-only sections. */
2172 readonly_dynrelocs (struct elf_link_hash_entry
*eh
, void *inf
)
2174 struct elf32_hppa_link_hash_entry
*hh
;
2175 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
2177 hh
= hppa_elf_hash_entry (eh
);
2178 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
2180 asection
*sec
= hdh_p
->sec
->output_section
;
2182 if (sec
!= NULL
&& (sec
->flags
& SEC_READONLY
) != 0)
2184 struct bfd_link_info
*info
= inf
;
2186 info
->flags
|= DF_TEXTREL
;
2188 /* Not an error, just cut short the traversal. */
2195 /* Set the sizes of the dynamic sections. */
2198 elf32_hppa_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2199 struct bfd_link_info
*info
)
2201 struct elf32_hppa_link_hash_table
*htab
;
2207 htab
= hppa_link_hash_table (info
);
2211 dynobj
= htab
->etab
.dynobj
;
2215 if (htab
->etab
.dynamic_sections_created
)
2217 /* Set the contents of the .interp section to the interpreter. */
2218 if (bfd_link_executable (info
) && !info
->nointerp
)
2220 sec
= bfd_get_linker_section (dynobj
, ".interp");
2223 sec
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
2224 sec
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
2227 /* Force millicode symbols local. */
2228 elf_link_hash_traverse (&htab
->etab
,
2229 clobber_millicode_symbols
,
2233 /* Set up .got and .plt offsets for local syms, and space for local
2235 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
2237 bfd_signed_vma
*local_got
;
2238 bfd_signed_vma
*end_local_got
;
2239 bfd_signed_vma
*local_plt
;
2240 bfd_signed_vma
*end_local_plt
;
2241 bfd_size_type locsymcount
;
2242 Elf_Internal_Shdr
*symtab_hdr
;
2244 char *local_tls_type
;
2246 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2249 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
2251 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
2253 for (hdh_p
= ((struct elf32_hppa_dyn_reloc_entry
*)
2254 elf_section_data (sec
)->local_dynrel
);
2256 hdh_p
= hdh_p
->hdh_next
)
2258 if (!bfd_is_abs_section (hdh_p
->sec
)
2259 && bfd_is_abs_section (hdh_p
->sec
->output_section
))
2261 /* Input section has been discarded, either because
2262 it is a copy of a linkonce section or due to
2263 linker script /DISCARD/, so we'll be discarding
2266 else if (hdh_p
->count
!= 0)
2268 srel
= elf_section_data (hdh_p
->sec
)->sreloc
;
2269 srel
->size
+= hdh_p
->count
* sizeof (Elf32_External_Rela
);
2270 if ((hdh_p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2271 info
->flags
|= DF_TEXTREL
;
2276 local_got
= elf_local_got_refcounts (ibfd
);
2280 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
2281 locsymcount
= symtab_hdr
->sh_info
;
2282 end_local_got
= local_got
+ locsymcount
;
2283 local_tls_type
= hppa_elf_local_got_tls_type (ibfd
);
2284 sec
= htab
->etab
.sgot
;
2285 srel
= htab
->etab
.srelgot
;
2286 for (; local_got
< end_local_got
; ++local_got
)
2290 *local_got
= sec
->size
;
2291 sec
->size
+= GOT_ENTRY_SIZE
;
2292 if ((*local_tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2293 sec
->size
+= 2 * GOT_ENTRY_SIZE
;
2294 else if ((*local_tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2295 sec
->size
+= GOT_ENTRY_SIZE
;
2296 if (bfd_link_pic (info
))
2298 srel
->size
+= sizeof (Elf32_External_Rela
);
2299 if ((*local_tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2300 srel
->size
+= 2 * sizeof (Elf32_External_Rela
);
2301 else if ((*local_tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2302 srel
->size
+= sizeof (Elf32_External_Rela
);
2306 *local_got
= (bfd_vma
) -1;
2311 local_plt
= end_local_got
;
2312 end_local_plt
= local_plt
+ locsymcount
;
2313 if (! htab
->etab
.dynamic_sections_created
)
2315 /* Won't be used, but be safe. */
2316 for (; local_plt
< end_local_plt
; ++local_plt
)
2317 *local_plt
= (bfd_vma
) -1;
2321 sec
= htab
->etab
.splt
;
2322 srel
= htab
->etab
.srelplt
;
2323 for (; local_plt
< end_local_plt
; ++local_plt
)
2327 *local_plt
= sec
->size
;
2328 sec
->size
+= PLT_ENTRY_SIZE
;
2329 if (bfd_link_pic (info
))
2330 srel
->size
+= sizeof (Elf32_External_Rela
);
2333 *local_plt
= (bfd_vma
) -1;
2338 if (htab
->tls_ldm_got
.refcount
> 0)
2340 /* Allocate 2 got entries and 1 dynamic reloc for
2341 R_PARISC_TLS_DTPMOD32 relocs. */
2342 htab
->tls_ldm_got
.offset
= htab
->etab
.sgot
->size
;
2343 htab
->etab
.sgot
->size
+= (GOT_ENTRY_SIZE
* 2);
2344 htab
->etab
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
2347 htab
->tls_ldm_got
.offset
= -1;
2349 /* Do all the .plt entries without relocs first. The dynamic linker
2350 uses the last .plt reloc to find the end of the .plt (and hence
2351 the start of the .got) for lazy linking. */
2352 elf_link_hash_traverse (&htab
->etab
, allocate_plt_static
, info
);
2354 /* Allocate global sym .plt and .got entries, and space for global
2355 sym dynamic relocs. */
2356 elf_link_hash_traverse (&htab
->etab
, allocate_dynrelocs
, info
);
2358 /* The check_relocs and adjust_dynamic_symbol entry points have
2359 determined the sizes of the various dynamic sections. Allocate
2362 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
2364 if ((sec
->flags
& SEC_LINKER_CREATED
) == 0)
2367 if (sec
== htab
->etab
.splt
)
2369 if (htab
->need_plt_stub
)
2371 /* Make space for the plt stub at the end of the .plt
2372 section. We want this stub right at the end, up
2373 against the .got section. */
2374 int gotalign
= bfd_section_alignment (dynobj
, htab
->etab
.sgot
);
2375 int pltalign
= bfd_section_alignment (dynobj
, sec
);
2378 if (gotalign
> pltalign
)
2379 (void) bfd_set_section_alignment (dynobj
, sec
, gotalign
);
2380 mask
= ((bfd_size_type
) 1 << gotalign
) - 1;
2381 sec
->size
= (sec
->size
+ sizeof (plt_stub
) + mask
) & ~mask
;
2384 else if (sec
== htab
->etab
.sgot
2385 || sec
== htab
->etab
.sdynbss
2386 || sec
== htab
->etab
.sdynrelro
)
2388 else if (CONST_STRNEQ (bfd_get_section_name (dynobj
, sec
), ".rela"))
2392 /* Remember whether there are any reloc sections other
2394 if (sec
!= htab
->etab
.srelplt
)
2397 /* We use the reloc_count field as a counter if we need
2398 to copy relocs into the output file. */
2399 sec
->reloc_count
= 0;
2404 /* It's not one of our sections, so don't allocate space. */
2410 /* If we don't need this section, strip it from the
2411 output file. This is mostly to handle .rela.bss and
2412 .rela.plt. We must create both sections in
2413 create_dynamic_sections, because they must be created
2414 before the linker maps input sections to output
2415 sections. The linker does that before
2416 adjust_dynamic_symbol is called, and it is that
2417 function which decides whether anything needs to go
2418 into these sections. */
2419 sec
->flags
|= SEC_EXCLUDE
;
2423 if ((sec
->flags
& SEC_HAS_CONTENTS
) == 0)
2426 /* Allocate memory for the section contents. Zero it, because
2427 we may not fill in all the reloc sections. */
2428 sec
->contents
= bfd_zalloc (dynobj
, sec
->size
);
2429 if (sec
->contents
== NULL
)
2433 if (htab
->etab
.dynamic_sections_created
)
2435 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2436 actually has nothing to do with the PLT, it is how we
2437 communicate the LTP value of a load module to the dynamic
2439 #define add_dynamic_entry(TAG, VAL) \
2440 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2442 if (!add_dynamic_entry (DT_PLTGOT
, 0))
2445 /* Add some entries to the .dynamic section. We fill in the
2446 values later, in elf32_hppa_finish_dynamic_sections, but we
2447 must add the entries now so that we get the correct size for
2448 the .dynamic section. The DT_DEBUG entry is filled in by the
2449 dynamic linker and used by the debugger. */
2450 if (bfd_link_executable (info
))
2452 if (!add_dynamic_entry (DT_DEBUG
, 0))
2456 if (htab
->etab
.srelplt
->size
!= 0)
2458 if (!add_dynamic_entry (DT_PLTRELSZ
, 0)
2459 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
2460 || !add_dynamic_entry (DT_JMPREL
, 0))
2466 if (!add_dynamic_entry (DT_RELA
, 0)
2467 || !add_dynamic_entry (DT_RELASZ
, 0)
2468 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
2471 /* If any dynamic relocs apply to a read-only section,
2472 then we need a DT_TEXTREL entry. */
2473 if ((info
->flags
& DF_TEXTREL
) == 0)
2474 elf_link_hash_traverse (&htab
->etab
, readonly_dynrelocs
, info
);
2476 if ((info
->flags
& DF_TEXTREL
) != 0)
2478 if (!add_dynamic_entry (DT_TEXTREL
, 0))
2483 #undef add_dynamic_entry
2488 /* External entry points for sizing and building linker stubs. */
2490 /* Set up various things so that we can make a list of input sections
2491 for each output section included in the link. Returns -1 on error,
2492 0 when no stubs will be needed, and 1 on success. */
2495 elf32_hppa_setup_section_lists (bfd
*output_bfd
, struct bfd_link_info
*info
)
2498 unsigned int bfd_count
;
2499 unsigned int top_id
, top_index
;
2501 asection
**input_list
, **list
;
2503 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2508 /* Count the number of input BFDs and find the top input section id. */
2509 for (input_bfd
= info
->input_bfds
, bfd_count
= 0, top_id
= 0;
2511 input_bfd
= input_bfd
->link
.next
)
2514 for (section
= input_bfd
->sections
;
2516 section
= section
->next
)
2518 if (top_id
< section
->id
)
2519 top_id
= section
->id
;
2522 htab
->bfd_count
= bfd_count
;
2524 amt
= sizeof (struct map_stub
) * (top_id
+ 1);
2525 htab
->stub_group
= bfd_zmalloc (amt
);
2526 if (htab
->stub_group
== NULL
)
2529 /* We can't use output_bfd->section_count here to find the top output
2530 section index as some sections may have been removed, and
2531 strip_excluded_output_sections doesn't renumber the indices. */
2532 for (section
= output_bfd
->sections
, top_index
= 0;
2534 section
= section
->next
)
2536 if (top_index
< section
->index
)
2537 top_index
= section
->index
;
2540 htab
->top_index
= top_index
;
2541 amt
= sizeof (asection
*) * (top_index
+ 1);
2542 input_list
= bfd_malloc (amt
);
2543 htab
->input_list
= input_list
;
2544 if (input_list
== NULL
)
2547 /* For sections we aren't interested in, mark their entries with a
2548 value we can check later. */
2549 list
= input_list
+ top_index
;
2551 *list
= bfd_abs_section_ptr
;
2552 while (list
-- != input_list
);
2554 for (section
= output_bfd
->sections
;
2556 section
= section
->next
)
2558 if ((section
->flags
& SEC_CODE
) != 0)
2559 input_list
[section
->index
] = NULL
;
2565 /* The linker repeatedly calls this function for each input section,
2566 in the order that input sections are linked into output sections.
2567 Build lists of input sections to determine groupings between which
2568 we may insert linker stubs. */
2571 elf32_hppa_next_input_section (struct bfd_link_info
*info
, asection
*isec
)
2573 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2578 if (isec
->output_section
->index
<= htab
->top_index
)
2580 asection
**list
= htab
->input_list
+ isec
->output_section
->index
;
2581 if (*list
!= bfd_abs_section_ptr
)
2583 /* Steal the link_sec pointer for our list. */
2584 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2585 /* This happens to make the list in reverse order,
2586 which is what we want. */
2587 PREV_SEC (isec
) = *list
;
2593 /* See whether we can group stub sections together. Grouping stub
2594 sections may result in fewer stubs. More importantly, we need to
2595 put all .init* and .fini* stubs at the beginning of the .init or
2596 .fini output sections respectively, because glibc splits the
2597 _init and _fini functions into multiple parts. Putting a stub in
2598 the middle of a function is not a good idea. */
2601 group_sections (struct elf32_hppa_link_hash_table
*htab
,
2602 bfd_size_type stub_group_size
,
2603 bfd_boolean stubs_always_before_branch
)
2605 asection
**list
= htab
->input_list
+ htab
->top_index
;
2608 asection
*tail
= *list
;
2609 if (tail
== bfd_abs_section_ptr
)
2611 while (tail
!= NULL
)
2615 bfd_size_type total
;
2616 bfd_boolean big_sec
;
2620 big_sec
= total
>= stub_group_size
;
2622 while ((prev
= PREV_SEC (curr
)) != NULL
2623 && ((total
+= curr
->output_offset
- prev
->output_offset
)
2627 /* OK, the size from the start of CURR to the end is less
2628 than 240000 bytes and thus can be handled by one stub
2629 section. (or the tail section is itself larger than
2630 240000 bytes, in which case we may be toast.)
2631 We should really be keeping track of the total size of
2632 stubs added here, as stubs contribute to the final output
2633 section size. That's a little tricky, and this way will
2634 only break if stubs added total more than 22144 bytes, or
2635 2768 long branch stubs. It seems unlikely for more than
2636 2768 different functions to be called, especially from
2637 code only 240000 bytes long. This limit used to be
2638 250000, but c++ code tends to generate lots of little
2639 functions, and sometimes violated the assumption. */
2642 prev
= PREV_SEC (tail
);
2643 /* Set up this stub group. */
2644 htab
->stub_group
[tail
->id
].link_sec
= curr
;
2646 while (tail
!= curr
&& (tail
= prev
) != NULL
);
2648 /* But wait, there's more! Input sections up to 240000
2649 bytes before the stub section can be handled by it too.
2650 Don't do this if we have a really large section after the
2651 stubs, as adding more stubs increases the chance that
2652 branches may not reach into the stub section. */
2653 if (!stubs_always_before_branch
&& !big_sec
)
2657 && ((total
+= tail
->output_offset
- prev
->output_offset
)
2661 prev
= PREV_SEC (tail
);
2662 htab
->stub_group
[tail
->id
].link_sec
= curr
;
2668 while (list
-- != htab
->input_list
);
2669 free (htab
->input_list
);
2673 /* Read in all local syms for all input bfds, and create hash entries
2674 for export stubs if we are building a multi-subspace shared lib.
2675 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2678 get_local_syms (bfd
*output_bfd
, bfd
*input_bfd
, struct bfd_link_info
*info
)
2680 unsigned int bfd_indx
;
2681 Elf_Internal_Sym
*local_syms
, **all_local_syms
;
2682 int stub_changed
= 0;
2683 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2688 /* We want to read in symbol extension records only once. To do this
2689 we need to read in the local symbols in parallel and save them for
2690 later use; so hold pointers to the local symbols in an array. */
2691 bfd_size_type amt
= sizeof (Elf_Internal_Sym
*) * htab
->bfd_count
;
2692 all_local_syms
= bfd_zmalloc (amt
);
2693 htab
->all_local_syms
= all_local_syms
;
2694 if (all_local_syms
== NULL
)
2697 /* Walk over all the input BFDs, swapping in local symbols.
2698 If we are creating a shared library, create hash entries for the
2702 input_bfd
= input_bfd
->link
.next
, bfd_indx
++)
2704 Elf_Internal_Shdr
*symtab_hdr
;
2706 /* We'll need the symbol table in a second. */
2707 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2708 if (symtab_hdr
->sh_info
== 0)
2711 /* We need an array of the local symbols attached to the input bfd. */
2712 local_syms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
2713 if (local_syms
== NULL
)
2715 local_syms
= bfd_elf_get_elf_syms (input_bfd
, symtab_hdr
,
2716 symtab_hdr
->sh_info
, 0,
2718 /* Cache them for elf_link_input_bfd. */
2719 symtab_hdr
->contents
= (unsigned char *) local_syms
;
2721 if (local_syms
== NULL
)
2724 all_local_syms
[bfd_indx
] = local_syms
;
2726 if (bfd_link_pic (info
) && htab
->multi_subspace
)
2728 struct elf_link_hash_entry
**eh_syms
;
2729 struct elf_link_hash_entry
**eh_symend
;
2730 unsigned int symcount
;
2732 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
2733 - symtab_hdr
->sh_info
);
2734 eh_syms
= (struct elf_link_hash_entry
**) elf_sym_hashes (input_bfd
);
2735 eh_symend
= (struct elf_link_hash_entry
**) (eh_syms
+ symcount
);
2737 /* Look through the global syms for functions; We need to
2738 build export stubs for all globally visible functions. */
2739 for (; eh_syms
< eh_symend
; eh_syms
++)
2741 struct elf32_hppa_link_hash_entry
*hh
;
2743 hh
= hppa_elf_hash_entry (*eh_syms
);
2745 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
2746 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
2747 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
2749 /* At this point in the link, undefined syms have been
2750 resolved, so we need to check that the symbol was
2751 defined in this BFD. */
2752 if ((hh
->eh
.root
.type
== bfd_link_hash_defined
2753 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)
2754 && hh
->eh
.type
== STT_FUNC
2755 && hh
->eh
.root
.u
.def
.section
->output_section
!= NULL
2756 && (hh
->eh
.root
.u
.def
.section
->output_section
->owner
2758 && hh
->eh
.root
.u
.def
.section
->owner
== input_bfd
2759 && hh
->eh
.def_regular
2760 && !hh
->eh
.forced_local
2761 && ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
)
2764 const char *stub_name
;
2765 struct elf32_hppa_stub_hash_entry
*hsh
;
2767 sec
= hh
->eh
.root
.u
.def
.section
;
2768 stub_name
= hh_name (hh
);
2769 hsh
= hppa_stub_hash_lookup (&htab
->bstab
,
2774 hsh
= hppa_add_stub (stub_name
, sec
, htab
);
2778 hsh
->target_value
= hh
->eh
.root
.u
.def
.value
;
2779 hsh
->target_section
= hh
->eh
.root
.u
.def
.section
;
2780 hsh
->stub_type
= hppa_stub_export
;
2786 /* xgettext:c-format */
2787 _bfd_error_handler (_("%B: duplicate export stub %s"),
2788 input_bfd
, stub_name
);
2795 return stub_changed
;
2798 /* Determine and set the size of the stub section for a final link.
2800 The basic idea here is to examine all the relocations looking for
2801 PC-relative calls to a target that is unreachable with a "bl"
2805 elf32_hppa_size_stubs
2806 (bfd
*output_bfd
, bfd
*stub_bfd
, struct bfd_link_info
*info
,
2807 bfd_boolean multi_subspace
, bfd_signed_vma group_size
,
2808 asection
* (*add_stub_section
) (const char *, asection
*),
2809 void (*layout_sections_again
) (void))
2811 bfd_size_type stub_group_size
;
2812 bfd_boolean stubs_always_before_branch
;
2813 bfd_boolean stub_changed
;
2814 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2819 /* Stash our params away. */
2820 htab
->stub_bfd
= stub_bfd
;
2821 htab
->multi_subspace
= multi_subspace
;
2822 htab
->add_stub_section
= add_stub_section
;
2823 htab
->layout_sections_again
= layout_sections_again
;
2824 stubs_always_before_branch
= group_size
< 0;
2826 stub_group_size
= -group_size
;
2828 stub_group_size
= group_size
;
2829 if (stub_group_size
== 1)
2831 /* Default values. */
2832 if (stubs_always_before_branch
)
2834 stub_group_size
= 7680000;
2835 if (htab
->has_17bit_branch
|| htab
->multi_subspace
)
2836 stub_group_size
= 240000;
2837 if (htab
->has_12bit_branch
)
2838 stub_group_size
= 7500;
2842 stub_group_size
= 6971392;
2843 if (htab
->has_17bit_branch
|| htab
->multi_subspace
)
2844 stub_group_size
= 217856;
2845 if (htab
->has_12bit_branch
)
2846 stub_group_size
= 6808;
2850 group_sections (htab
, stub_group_size
, stubs_always_before_branch
);
2852 switch (get_local_syms (output_bfd
, info
->input_bfds
, info
))
2855 if (htab
->all_local_syms
)
2856 goto error_ret_free_local
;
2860 stub_changed
= FALSE
;
2864 stub_changed
= TRUE
;
2871 unsigned int bfd_indx
;
2874 for (input_bfd
= info
->input_bfds
, bfd_indx
= 0;
2876 input_bfd
= input_bfd
->link
.next
, bfd_indx
++)
2878 Elf_Internal_Shdr
*symtab_hdr
;
2880 Elf_Internal_Sym
*local_syms
;
2882 /* We'll need the symbol table in a second. */
2883 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2884 if (symtab_hdr
->sh_info
== 0)
2887 local_syms
= htab
->all_local_syms
[bfd_indx
];
2889 /* Walk over each section attached to the input bfd. */
2890 for (section
= input_bfd
->sections
;
2892 section
= section
->next
)
2894 Elf_Internal_Rela
*internal_relocs
, *irelaend
, *irela
;
2896 /* If there aren't any relocs, then there's nothing more
2898 if ((section
->flags
& SEC_RELOC
) == 0
2899 || section
->reloc_count
== 0)
2902 /* If this section is a link-once section that will be
2903 discarded, then don't create any stubs. */
2904 if (section
->output_section
== NULL
2905 || section
->output_section
->owner
!= output_bfd
)
2908 /* Get the relocs. */
2910 = _bfd_elf_link_read_relocs (input_bfd
, section
, NULL
, NULL
,
2912 if (internal_relocs
== NULL
)
2913 goto error_ret_free_local
;
2915 /* Now examine each relocation. */
2916 irela
= internal_relocs
;
2917 irelaend
= irela
+ section
->reloc_count
;
2918 for (; irela
< irelaend
; irela
++)
2920 unsigned int r_type
, r_indx
;
2921 enum elf32_hppa_stub_type stub_type
;
2922 struct elf32_hppa_stub_hash_entry
*hsh
;
2925 bfd_vma destination
;
2926 struct elf32_hppa_link_hash_entry
*hh
;
2928 const asection
*id_sec
;
2930 r_type
= ELF32_R_TYPE (irela
->r_info
);
2931 r_indx
= ELF32_R_SYM (irela
->r_info
);
2933 if (r_type
>= (unsigned int) R_PARISC_UNIMPLEMENTED
)
2935 bfd_set_error (bfd_error_bad_value
);
2936 error_ret_free_internal
:
2937 if (elf_section_data (section
)->relocs
== NULL
)
2938 free (internal_relocs
);
2939 goto error_ret_free_local
;
2942 /* Only look for stubs on call instructions. */
2943 if (r_type
!= (unsigned int) R_PARISC_PCREL12F
2944 && r_type
!= (unsigned int) R_PARISC_PCREL17F
2945 && r_type
!= (unsigned int) R_PARISC_PCREL22F
)
2948 /* Now determine the call target, its name, value,
2954 if (r_indx
< symtab_hdr
->sh_info
)
2956 /* It's a local symbol. */
2957 Elf_Internal_Sym
*sym
;
2958 Elf_Internal_Shdr
*hdr
;
2961 sym
= local_syms
+ r_indx
;
2962 if (ELF_ST_TYPE (sym
->st_info
) != STT_SECTION
)
2963 sym_value
= sym
->st_value
;
2964 shndx
= sym
->st_shndx
;
2965 if (shndx
< elf_numsections (input_bfd
))
2967 hdr
= elf_elfsections (input_bfd
)[shndx
];
2968 sym_sec
= hdr
->bfd_section
;
2969 destination
= (sym_value
+ irela
->r_addend
2970 + sym_sec
->output_offset
2971 + sym_sec
->output_section
->vma
);
2976 /* It's an external symbol. */
2979 e_indx
= r_indx
- symtab_hdr
->sh_info
;
2980 hh
= hppa_elf_hash_entry (elf_sym_hashes (input_bfd
)[e_indx
]);
2982 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
2983 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
2984 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
2986 if (hh
->eh
.root
.type
== bfd_link_hash_defined
2987 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)
2989 sym_sec
= hh
->eh
.root
.u
.def
.section
;
2990 sym_value
= hh
->eh
.root
.u
.def
.value
;
2991 if (sym_sec
->output_section
!= NULL
)
2992 destination
= (sym_value
+ irela
->r_addend
2993 + sym_sec
->output_offset
2994 + sym_sec
->output_section
->vma
);
2996 else if (hh
->eh
.root
.type
== bfd_link_hash_undefweak
)
2998 if (! bfd_link_pic (info
))
3001 else if (hh
->eh
.root
.type
== bfd_link_hash_undefined
)
3003 if (! (info
->unresolved_syms_in_objects
== RM_IGNORE
3004 && (ELF_ST_VISIBILITY (hh
->eh
.other
)
3006 && hh
->eh
.type
!= STT_PARISC_MILLI
))
3011 bfd_set_error (bfd_error_bad_value
);
3012 goto error_ret_free_internal
;
3016 /* Determine what (if any) linker stub is needed. */
3017 stub_type
= hppa_type_of_stub (section
, irela
, hh
,
3019 if (stub_type
== hppa_stub_none
)
3022 /* Support for grouping stub sections. */
3023 id_sec
= htab
->stub_group
[section
->id
].link_sec
;
3025 /* Get the name of this stub. */
3026 stub_name
= hppa_stub_name (id_sec
, sym_sec
, hh
, irela
);
3028 goto error_ret_free_internal
;
3030 hsh
= hppa_stub_hash_lookup (&htab
->bstab
,
3035 /* The proper stub has already been created. */
3040 hsh
= hppa_add_stub (stub_name
, section
, htab
);
3044 goto error_ret_free_internal
;
3047 hsh
->target_value
= sym_value
;
3048 hsh
->target_section
= sym_sec
;
3049 hsh
->stub_type
= stub_type
;
3050 if (bfd_link_pic (info
))
3052 if (stub_type
== hppa_stub_import
)
3053 hsh
->stub_type
= hppa_stub_import_shared
;
3054 else if (stub_type
== hppa_stub_long_branch
)
3055 hsh
->stub_type
= hppa_stub_long_branch_shared
;
3058 stub_changed
= TRUE
;
3061 /* We're done with the internal relocs, free them. */
3062 if (elf_section_data (section
)->relocs
== NULL
)
3063 free (internal_relocs
);
3070 /* OK, we've added some stubs. Find out the new size of the
3072 for (stub_sec
= htab
->stub_bfd
->sections
;
3074 stub_sec
= stub_sec
->next
)
3075 if ((stub_sec
->flags
& SEC_LINKER_CREATED
) == 0)
3078 bfd_hash_traverse (&htab
->bstab
, hppa_size_one_stub
, htab
);
3080 /* Ask the linker to do its stuff. */
3081 (*htab
->layout_sections_again
) ();
3082 stub_changed
= FALSE
;
3085 free (htab
->all_local_syms
);
3088 error_ret_free_local
:
3089 free (htab
->all_local_syms
);
3093 /* For a final link, this function is called after we have sized the
3094 stubs to provide a value for __gp. */
3097 elf32_hppa_set_gp (bfd
*abfd
, struct bfd_link_info
*info
)
3099 struct bfd_link_hash_entry
*h
;
3100 asection
*sec
= NULL
;
3102 struct elf32_hppa_link_hash_table
*htab
;
3104 htab
= hppa_link_hash_table (info
);
3108 h
= bfd_link_hash_lookup (&htab
->etab
.root
, "$global$", FALSE
, FALSE
, FALSE
);
3111 && (h
->type
== bfd_link_hash_defined
3112 || h
->type
== bfd_link_hash_defweak
))
3114 gp_val
= h
->u
.def
.value
;
3115 sec
= h
->u
.def
.section
;
3119 asection
*splt
= bfd_get_section_by_name (abfd
, ".plt");
3120 asection
*sgot
= bfd_get_section_by_name (abfd
, ".got");
3122 /* Choose to point our LTP at, in this order, one of .plt, .got,
3123 or .data, if these sections exist. In the case of choosing
3124 .plt try to make the LTP ideal for addressing anywhere in the
3125 .plt or .got with a 14 bit signed offset. Typically, the end
3126 of the .plt is the start of the .got, so choose .plt + 0x2000
3127 if either the .plt or .got is larger than 0x2000. If both
3128 the .plt and .got are smaller than 0x2000, choose the end of
3129 the .plt section. */
3130 sec
= strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") == 0
3135 if (gp_val
> 0x2000 || (sgot
&& sgot
->size
> 0x2000))
3145 if (strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") != 0)
3147 /* We know we don't have a .plt. If .got is large,
3149 if (sec
->size
> 0x2000)
3155 /* No .plt or .got. Who cares what the LTP is? */
3156 sec
= bfd_get_section_by_name (abfd
, ".data");
3162 h
->type
= bfd_link_hash_defined
;
3163 h
->u
.def
.value
= gp_val
;
3165 h
->u
.def
.section
= sec
;
3167 h
->u
.def
.section
= bfd_abs_section_ptr
;
3171 if (sec
!= NULL
&& sec
->output_section
!= NULL
)
3172 gp_val
+= sec
->output_section
->vma
+ sec
->output_offset
;
3174 elf_gp (abfd
) = gp_val
;
3178 /* Build all the stubs associated with the current output file. The
3179 stubs are kept in a hash table attached to the main linker hash
3180 table. We also set up the .plt entries for statically linked PIC
3181 functions here. This function is called via hppaelf_finish in the
3185 elf32_hppa_build_stubs (struct bfd_link_info
*info
)
3188 struct bfd_hash_table
*table
;
3189 struct elf32_hppa_link_hash_table
*htab
;
3191 htab
= hppa_link_hash_table (info
);
3195 for (stub_sec
= htab
->stub_bfd
->sections
;
3197 stub_sec
= stub_sec
->next
)
3198 if ((stub_sec
->flags
& SEC_LINKER_CREATED
) == 0
3199 && stub_sec
->size
!= 0)
3201 /* Allocate memory to hold the linker stubs. */
3202 stub_sec
->contents
= bfd_zalloc (htab
->stub_bfd
, stub_sec
->size
);
3203 if (stub_sec
->contents
== NULL
)
3208 /* Build the stubs as directed by the stub hash table. */
3209 table
= &htab
->bstab
;
3210 bfd_hash_traverse (table
, hppa_build_one_stub
, info
);
3215 /* Return the base vma address which should be subtracted from the real
3216 address when resolving a dtpoff relocation.
3217 This is PT_TLS segment p_vaddr. */
3220 dtpoff_base (struct bfd_link_info
*info
)
3222 /* If tls_sec is NULL, we should have signalled an error already. */
3223 if (elf_hash_table (info
)->tls_sec
== NULL
)
3225 return elf_hash_table (info
)->tls_sec
->vma
;
3228 /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3231 tpoff (struct bfd_link_info
*info
, bfd_vma address
)
3233 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
3235 /* If tls_sec is NULL, we should have signalled an error already. */
3236 if (htab
->tls_sec
== NULL
)
3238 /* hppa TLS ABI is variant I and static TLS block start just after
3239 tcbhead structure which has 2 pointer fields. */
3240 return (address
- htab
->tls_sec
->vma
3241 + align_power ((bfd_vma
) 8, htab
->tls_sec
->alignment_power
));
3244 /* Perform a final link. */
3247 elf32_hppa_final_link (bfd
*abfd
, struct bfd_link_info
*info
)
3251 /* Invoke the regular ELF linker to do all the work. */
3252 if (!bfd_elf_final_link (abfd
, info
))
3255 /* If we're producing a final executable, sort the contents of the
3257 if (bfd_link_relocatable (info
))
3260 /* Do not attempt to sort non-regular files. This is here
3261 especially for configure scripts and kernel builds which run
3262 tests with "ld [...] -o /dev/null". */
3263 if (stat (abfd
->filename
, &buf
) != 0
3264 || !S_ISREG(buf
.st_mode
))
3267 return elf_hppa_sort_unwind (abfd
);
3270 /* Record the lowest address for the data and text segments. */
3273 hppa_record_segment_addr (bfd
*abfd
, asection
*section
, void *data
)
3275 struct elf32_hppa_link_hash_table
*htab
;
3277 htab
= (struct elf32_hppa_link_hash_table
*) data
;
3281 if ((section
->flags
& (SEC_ALLOC
| SEC_LOAD
)) == (SEC_ALLOC
| SEC_LOAD
))
3284 Elf_Internal_Phdr
*p
;
3286 p
= _bfd_elf_find_segment_containing_section (abfd
, section
->output_section
);
3287 BFD_ASSERT (p
!= NULL
);
3290 if ((section
->flags
& SEC_READONLY
) != 0)
3292 if (value
< htab
->text_segment_base
)
3293 htab
->text_segment_base
= value
;
3297 if (value
< htab
->data_segment_base
)
3298 htab
->data_segment_base
= value
;
3303 /* Perform a relocation as part of a final link. */
3305 static bfd_reloc_status_type
3306 final_link_relocate (asection
*input_section
,
3308 const Elf_Internal_Rela
*rela
,
3310 struct elf32_hppa_link_hash_table
*htab
,
3312 struct elf32_hppa_link_hash_entry
*hh
,
3313 struct bfd_link_info
*info
)
3316 unsigned int r_type
= ELF32_R_TYPE (rela
->r_info
);
3317 unsigned int orig_r_type
= r_type
;
3318 reloc_howto_type
*howto
= elf_hppa_howto_table
+ r_type
;
3319 int r_format
= howto
->bitsize
;
3320 enum hppa_reloc_field_selector_type_alt r_field
;
3321 bfd
*input_bfd
= input_section
->owner
;
3322 bfd_vma offset
= rela
->r_offset
;
3323 bfd_vma max_branch_offset
= 0;
3324 bfd_byte
*hit_data
= contents
+ offset
;
3325 bfd_signed_vma addend
= rela
->r_addend
;
3327 struct elf32_hppa_stub_hash_entry
*hsh
= NULL
;
3330 if (r_type
== R_PARISC_NONE
)
3331 return bfd_reloc_ok
;
3333 insn
= bfd_get_32 (input_bfd
, hit_data
);
3335 /* Find out where we are and where we're going. */
3336 location
= (offset
+
3337 input_section
->output_offset
+
3338 input_section
->output_section
->vma
);
3340 /* If we are not building a shared library, convert DLTIND relocs to
3342 if (!bfd_link_pic (info
))
3346 case R_PARISC_DLTIND21L
:
3347 case R_PARISC_TLS_GD21L
:
3348 case R_PARISC_TLS_LDM21L
:
3349 case R_PARISC_TLS_IE21L
:
3350 r_type
= R_PARISC_DPREL21L
;
3353 case R_PARISC_DLTIND14R
:
3354 case R_PARISC_TLS_GD14R
:
3355 case R_PARISC_TLS_LDM14R
:
3356 case R_PARISC_TLS_IE14R
:
3357 r_type
= R_PARISC_DPREL14R
;
3360 case R_PARISC_DLTIND14F
:
3361 r_type
= R_PARISC_DPREL14F
;
3368 case R_PARISC_PCREL12F
:
3369 case R_PARISC_PCREL17F
:
3370 case R_PARISC_PCREL22F
:
3371 /* If this call should go via the plt, find the import stub in
3374 || sym_sec
->output_section
== NULL
3376 && hh
->eh
.plt
.offset
!= (bfd_vma
) -1
3377 && hh
->eh
.dynindx
!= -1
3379 && (bfd_link_pic (info
)
3380 || !hh
->eh
.def_regular
3381 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)))
3383 hsh
= hppa_get_stub_entry (input_section
, sym_sec
,
3387 value
= (hsh
->stub_offset
3388 + hsh
->stub_sec
->output_offset
3389 + hsh
->stub_sec
->output_section
->vma
);
3392 else if (sym_sec
== NULL
&& hh
!= NULL
3393 && hh
->eh
.root
.type
== bfd_link_hash_undefweak
)
3395 /* It's OK if undefined weak. Calls to undefined weak
3396 symbols behave as if the "called" function
3397 immediately returns. We can thus call to a weak
3398 function without first checking whether the function
3404 return bfd_reloc_undefined
;
3408 case R_PARISC_PCREL21L
:
3409 case R_PARISC_PCREL17C
:
3410 case R_PARISC_PCREL17R
:
3411 case R_PARISC_PCREL14R
:
3412 case R_PARISC_PCREL14F
:
3413 case R_PARISC_PCREL32
:
3414 /* Make it a pc relative offset. */
3419 case R_PARISC_DPREL21L
:
3420 case R_PARISC_DPREL14R
:
3421 case R_PARISC_DPREL14F
:
3422 /* Convert instructions that use the linkage table pointer (r19) to
3423 instructions that use the global data pointer (dp). This is the
3424 most efficient way of using PIC code in an incomplete executable,
3425 but the user must follow the standard runtime conventions for
3426 accessing data for this to work. */
3427 if (orig_r_type
!= r_type
)
3429 if (r_type
== R_PARISC_DPREL21L
)
3431 /* GCC sometimes uses a register other than r19 for the
3432 operation, so we must convert any addil instruction
3433 that uses this relocation. */
3434 if ((insn
& 0xfc000000) == ((int) OP_ADDIL
<< 26))
3437 /* We must have a ldil instruction. It's too hard to find
3438 and convert the associated add instruction, so issue an
3441 /* xgettext:c-format */
3442 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3449 else if (r_type
== R_PARISC_DPREL14F
)
3451 /* This must be a format 1 load/store. Change the base
3453 insn
= (insn
& 0xfc1ffff) | (27 << 21);
3457 /* For all the DP relative relocations, we need to examine the symbol's
3458 section. If it has no section or if it's a code section, then
3459 "data pointer relative" makes no sense. In that case we don't
3460 adjust the "value", and for 21 bit addil instructions, we change the
3461 source addend register from %dp to %r0. This situation commonly
3462 arises for undefined weak symbols and when a variable's "constness"
3463 is declared differently from the way the variable is defined. For
3464 instance: "extern int foo" with foo defined as "const int foo". */
3465 if (sym_sec
== NULL
|| (sym_sec
->flags
& SEC_CODE
) != 0)
3467 if ((insn
& ((0x3f << 26) | (0x1f << 21)))
3468 == (((int) OP_ADDIL
<< 26) | (27 << 21)))
3470 insn
&= ~ (0x1f << 21);
3472 /* Now try to make things easy for the dynamic linker. */
3478 case R_PARISC_DLTIND21L
:
3479 case R_PARISC_DLTIND14R
:
3480 case R_PARISC_DLTIND14F
:
3481 case R_PARISC_TLS_GD21L
:
3482 case R_PARISC_TLS_LDM21L
:
3483 case R_PARISC_TLS_IE21L
:
3484 case R_PARISC_TLS_GD14R
:
3485 case R_PARISC_TLS_LDM14R
:
3486 case R_PARISC_TLS_IE14R
:
3487 value
-= elf_gp (input_section
->output_section
->owner
);
3490 case R_PARISC_SEGREL32
:
3491 if ((sym_sec
->flags
& SEC_CODE
) != 0)
3492 value
-= htab
->text_segment_base
;
3494 value
-= htab
->data_segment_base
;
3503 case R_PARISC_DIR32
:
3504 case R_PARISC_DIR14F
:
3505 case R_PARISC_DIR17F
:
3506 case R_PARISC_PCREL17C
:
3507 case R_PARISC_PCREL14F
:
3508 case R_PARISC_PCREL32
:
3509 case R_PARISC_DPREL14F
:
3510 case R_PARISC_PLABEL32
:
3511 case R_PARISC_DLTIND14F
:
3512 case R_PARISC_SEGBASE
:
3513 case R_PARISC_SEGREL32
:
3514 case R_PARISC_TLS_DTPMOD32
:
3515 case R_PARISC_TLS_DTPOFF32
:
3516 case R_PARISC_TLS_TPREL32
:
3520 case R_PARISC_DLTIND21L
:
3521 case R_PARISC_PCREL21L
:
3522 case R_PARISC_PLABEL21L
:
3526 case R_PARISC_DIR21L
:
3527 case R_PARISC_DPREL21L
:
3528 case R_PARISC_TLS_GD21L
:
3529 case R_PARISC_TLS_LDM21L
:
3530 case R_PARISC_TLS_LDO21L
:
3531 case R_PARISC_TLS_IE21L
:
3532 case R_PARISC_TLS_LE21L
:
3536 case R_PARISC_PCREL17R
:
3537 case R_PARISC_PCREL14R
:
3538 case R_PARISC_PLABEL14R
:
3539 case R_PARISC_DLTIND14R
:
3543 case R_PARISC_DIR17R
:
3544 case R_PARISC_DIR14R
:
3545 case R_PARISC_DPREL14R
:
3546 case R_PARISC_TLS_GD14R
:
3547 case R_PARISC_TLS_LDM14R
:
3548 case R_PARISC_TLS_LDO14R
:
3549 case R_PARISC_TLS_IE14R
:
3550 case R_PARISC_TLS_LE14R
:
3554 case R_PARISC_PCREL12F
:
3555 case R_PARISC_PCREL17F
:
3556 case R_PARISC_PCREL22F
:
3559 if (r_type
== (unsigned int) R_PARISC_PCREL17F
)
3561 max_branch_offset
= (1 << (17-1)) << 2;
3563 else if (r_type
== (unsigned int) R_PARISC_PCREL12F
)
3565 max_branch_offset
= (1 << (12-1)) << 2;
3569 max_branch_offset
= (1 << (22-1)) << 2;
3572 /* sym_sec is NULL on undefined weak syms or when shared on
3573 undefined syms. We've already checked for a stub for the
3574 shared undefined case. */
3575 if (sym_sec
== NULL
)
3578 /* If the branch is out of reach, then redirect the
3579 call to the local stub for this function. */
3580 if (value
+ addend
+ max_branch_offset
>= 2*max_branch_offset
)
3582 hsh
= hppa_get_stub_entry (input_section
, sym_sec
,
3585 return bfd_reloc_undefined
;
3587 /* Munge up the value and addend so that we call the stub
3588 rather than the procedure directly. */
3589 value
= (hsh
->stub_offset
3590 + hsh
->stub_sec
->output_offset
3591 + hsh
->stub_sec
->output_section
->vma
3597 /* Something we don't know how to handle. */
3599 return bfd_reloc_notsupported
;
3602 /* Make sure we can reach the stub. */
3603 if (max_branch_offset
!= 0
3604 && value
+ addend
+ max_branch_offset
>= 2*max_branch_offset
)
3607 /* xgettext:c-format */
3608 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3612 hsh
->bh_root
.string
);
3613 bfd_set_error (bfd_error_bad_value
);
3614 return bfd_reloc_notsupported
;
3617 val
= hppa_field_adjust (value
, addend
, r_field
);
3621 case R_PARISC_PCREL12F
:
3622 case R_PARISC_PCREL17C
:
3623 case R_PARISC_PCREL17F
:
3624 case R_PARISC_PCREL17R
:
3625 case R_PARISC_PCREL22F
:
3626 case R_PARISC_DIR17F
:
3627 case R_PARISC_DIR17R
:
3628 /* This is a branch. Divide the offset by four.
3629 Note that we need to decide whether it's a branch or
3630 otherwise by inspecting the reloc. Inspecting insn won't
3631 work as insn might be from a .word directive. */
3639 insn
= hppa_rebuild_insn (insn
, val
, r_format
);
3641 /* Update the instruction word. */
3642 bfd_put_32 (input_bfd
, (bfd_vma
) insn
, hit_data
);
3643 return bfd_reloc_ok
;
3646 /* Relocate an HPPA ELF section. */
3649 elf32_hppa_relocate_section (bfd
*output_bfd
,
3650 struct bfd_link_info
*info
,
3652 asection
*input_section
,
3654 Elf_Internal_Rela
*relocs
,
3655 Elf_Internal_Sym
*local_syms
,
3656 asection
**local_sections
)
3658 bfd_vma
*local_got_offsets
;
3659 struct elf32_hppa_link_hash_table
*htab
;
3660 Elf_Internal_Shdr
*symtab_hdr
;
3661 Elf_Internal_Rela
*rela
;
3662 Elf_Internal_Rela
*relend
;
3664 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3666 htab
= hppa_link_hash_table (info
);
3670 local_got_offsets
= elf_local_got_offsets (input_bfd
);
3673 relend
= relocs
+ input_section
->reloc_count
;
3674 for (; rela
< relend
; rela
++)
3676 unsigned int r_type
;
3677 reloc_howto_type
*howto
;
3678 unsigned int r_symndx
;
3679 struct elf32_hppa_link_hash_entry
*hh
;
3680 Elf_Internal_Sym
*sym
;
3683 bfd_reloc_status_type rstatus
;
3684 const char *sym_name
;
3686 bfd_boolean warned_undef
;
3688 r_type
= ELF32_R_TYPE (rela
->r_info
);
3689 if (r_type
>= (unsigned int) R_PARISC_UNIMPLEMENTED
)
3691 bfd_set_error (bfd_error_bad_value
);
3694 if (r_type
== (unsigned int) R_PARISC_GNU_VTENTRY
3695 || r_type
== (unsigned int) R_PARISC_GNU_VTINHERIT
)
3698 r_symndx
= ELF32_R_SYM (rela
->r_info
);
3702 warned_undef
= FALSE
;
3703 if (r_symndx
< symtab_hdr
->sh_info
)
3705 /* This is a local symbol, h defaults to NULL. */
3706 sym
= local_syms
+ r_symndx
;
3707 sym_sec
= local_sections
[r_symndx
];
3708 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sym_sec
, rela
);
3712 struct elf_link_hash_entry
*eh
;
3713 bfd_boolean unresolved_reloc
, ignored
;
3714 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
3716 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rela
,
3717 r_symndx
, symtab_hdr
, sym_hashes
,
3718 eh
, sym_sec
, relocation
,
3719 unresolved_reloc
, warned_undef
,
3722 if (!bfd_link_relocatable (info
)
3724 && eh
->root
.type
!= bfd_link_hash_defined
3725 && eh
->root
.type
!= bfd_link_hash_defweak
3726 && eh
->root
.type
!= bfd_link_hash_undefweak
)
3728 if (info
->unresolved_syms_in_objects
== RM_IGNORE
3729 && ELF_ST_VISIBILITY (eh
->other
) == STV_DEFAULT
3730 && eh
->type
== STT_PARISC_MILLI
)
3732 (*info
->callbacks
->undefined_symbol
)
3733 (info
, eh_name (eh
), input_bfd
,
3734 input_section
, rela
->r_offset
, FALSE
);
3735 warned_undef
= TRUE
;
3738 hh
= hppa_elf_hash_entry (eh
);
3741 if (sym_sec
!= NULL
&& discarded_section (sym_sec
))
3742 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
3744 elf_hppa_howto_table
+ r_type
, 0,
3747 if (bfd_link_relocatable (info
))
3750 /* Do any required modifications to the relocation value, and
3751 determine what types of dynamic info we need to output, if
3756 case R_PARISC_DLTIND14F
:
3757 case R_PARISC_DLTIND14R
:
3758 case R_PARISC_DLTIND21L
:
3761 bfd_boolean do_got
= 0;
3763 /* Relocation is to the entry for this symbol in the
3764 global offset table. */
3769 off
= hh
->eh
.got
.offset
;
3770 dyn
= htab
->etab
.dynamic_sections_created
;
3771 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
3772 bfd_link_pic (info
),
3775 /* If we aren't going to call finish_dynamic_symbol,
3776 then we need to handle initialisation of the .got
3777 entry and create needed relocs here. Since the
3778 offset must always be a multiple of 4, we use the
3779 least significant bit to record whether we have
3780 initialised it already. */
3785 hh
->eh
.got
.offset
|= 1;
3792 /* Local symbol case. */
3793 if (local_got_offsets
== NULL
)
3796 off
= local_got_offsets
[r_symndx
];
3798 /* The offset must always be a multiple of 4. We use
3799 the least significant bit to record whether we have
3800 already generated the necessary reloc. */
3805 local_got_offsets
[r_symndx
] |= 1;
3812 if (bfd_link_pic (info
))
3814 /* Output a dynamic relocation for this GOT entry.
3815 In this case it is relative to the base of the
3816 object because the symbol index is zero. */
3817 Elf_Internal_Rela outrel
;
3819 asection
*sec
= htab
->etab
.srelgot
;
3821 outrel
.r_offset
= (off
3822 + htab
->etab
.sgot
->output_offset
3823 + htab
->etab
.sgot
->output_section
->vma
);
3824 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_DIR32
);
3825 outrel
.r_addend
= relocation
;
3826 loc
= sec
->contents
;
3827 loc
+= sec
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3828 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3831 bfd_put_32 (output_bfd
, relocation
,
3832 htab
->etab
.sgot
->contents
+ off
);
3835 if (off
>= (bfd_vma
) -2)
3838 /* Add the base of the GOT to the relocation value. */
3840 + htab
->etab
.sgot
->output_offset
3841 + htab
->etab
.sgot
->output_section
->vma
);
3845 case R_PARISC_SEGREL32
:
3846 /* If this is the first SEGREL relocation, then initialize
3847 the segment base values. */
3848 if (htab
->text_segment_base
== (bfd_vma
) -1)
3849 bfd_map_over_sections (output_bfd
, hppa_record_segment_addr
, htab
);
3852 case R_PARISC_PLABEL14R
:
3853 case R_PARISC_PLABEL21L
:
3854 case R_PARISC_PLABEL32
:
3855 if (htab
->etab
.dynamic_sections_created
)
3858 bfd_boolean do_plt
= 0;
3859 /* If we have a global symbol with a PLT slot, then
3860 redirect this relocation to it. */
3863 off
= hh
->eh
.plt
.offset
;
3864 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3865 bfd_link_pic (info
),
3868 /* In a non-shared link, adjust_dynamic_symbols
3869 isn't called for symbols forced local. We
3870 need to write out the plt entry here. */
3875 hh
->eh
.plt
.offset
|= 1;
3882 bfd_vma
*local_plt_offsets
;
3884 if (local_got_offsets
== NULL
)
3887 local_plt_offsets
= local_got_offsets
+ symtab_hdr
->sh_info
;
3888 off
= local_plt_offsets
[r_symndx
];
3890 /* As for the local .got entry case, we use the last
3891 bit to record whether we've already initialised
3892 this local .plt entry. */
3897 local_plt_offsets
[r_symndx
] |= 1;
3904 if (bfd_link_pic (info
))
3906 /* Output a dynamic IPLT relocation for this
3908 Elf_Internal_Rela outrel
;
3910 asection
*s
= htab
->etab
.srelplt
;
3912 outrel
.r_offset
= (off
3913 + htab
->etab
.splt
->output_offset
3914 + htab
->etab
.splt
->output_section
->vma
);
3915 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_IPLT
);
3916 outrel
.r_addend
= relocation
;
3918 loc
+= s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3919 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3923 bfd_put_32 (output_bfd
,
3925 htab
->etab
.splt
->contents
+ off
);
3926 bfd_put_32 (output_bfd
,
3927 elf_gp (htab
->etab
.splt
->output_section
->owner
),
3928 htab
->etab
.splt
->contents
+ off
+ 4);
3932 if (off
>= (bfd_vma
) -2)
3935 /* PLABELs contain function pointers. Relocation is to
3936 the entry for the function in the .plt. The magic +2
3937 offset signals to $$dyncall that the function pointer
3938 is in the .plt and thus has a gp pointer too.
3939 Exception: Undefined PLABELs should have a value of
3942 || (hh
->eh
.root
.type
!= bfd_link_hash_undefweak
3943 && hh
->eh
.root
.type
!= bfd_link_hash_undefined
))
3946 + htab
->etab
.splt
->output_offset
3947 + htab
->etab
.splt
->output_section
->vma
3954 case R_PARISC_DIR17F
:
3955 case R_PARISC_DIR17R
:
3956 case R_PARISC_DIR14F
:
3957 case R_PARISC_DIR14R
:
3958 case R_PARISC_DIR21L
:
3959 case R_PARISC_DPREL14F
:
3960 case R_PARISC_DPREL14R
:
3961 case R_PARISC_DPREL21L
:
3962 case R_PARISC_DIR32
:
3963 if ((input_section
->flags
& SEC_ALLOC
) == 0)
3966 /* The reloc types handled here and this conditional
3967 expression must match the code in ..check_relocs and
3968 allocate_dynrelocs. ie. We need exactly the same condition
3969 as in ..check_relocs, with some extra conditions (dynindx
3970 test in this case) to cater for relocs removed by
3971 allocate_dynrelocs. If you squint, the non-shared test
3972 here does indeed match the one in ..check_relocs, the
3973 difference being that here we test DEF_DYNAMIC as well as
3974 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3975 which is why we can't use just that test here.
3976 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3977 there all files have not been loaded. */
3978 if ((bfd_link_pic (info
)
3980 || ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
3981 || hh
->eh
.root
.type
!= bfd_link_hash_undefweak
)
3982 && (IS_ABSOLUTE_RELOC (r_type
)
3983 || !SYMBOL_CALLS_LOCAL (info
, &hh
->eh
)))
3984 || (!bfd_link_pic (info
)
3986 && hh
->eh
.dynindx
!= -1
3987 && !hh
->eh
.non_got_ref
3988 && ((ELIMINATE_COPY_RELOCS
3989 && hh
->eh
.def_dynamic
3990 && !hh
->eh
.def_regular
)
3991 || hh
->eh
.root
.type
== bfd_link_hash_undefweak
3992 || hh
->eh
.root
.type
== bfd_link_hash_undefined
)))
3994 Elf_Internal_Rela outrel
;
3999 /* When generating a shared object, these relocations
4000 are copied into the output file to be resolved at run
4003 outrel
.r_addend
= rela
->r_addend
;
4005 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
4007 skip
= (outrel
.r_offset
== (bfd_vma
) -1
4008 || outrel
.r_offset
== (bfd_vma
) -2);
4009 outrel
.r_offset
+= (input_section
->output_offset
4010 + input_section
->output_section
->vma
);
4014 memset (&outrel
, 0, sizeof (outrel
));
4017 && hh
->eh
.dynindx
!= -1
4019 || !IS_ABSOLUTE_RELOC (r_type
)
4020 || !bfd_link_pic (info
)
4021 || !SYMBOLIC_BIND (info
, &hh
->eh
)
4022 || !hh
->eh
.def_regular
))
4024 outrel
.r_info
= ELF32_R_INFO (hh
->eh
.dynindx
, r_type
);
4026 else /* It's a local symbol, or one marked to become local. */
4030 /* Add the absolute offset of the symbol. */
4031 outrel
.r_addend
+= relocation
;
4033 /* Global plabels need to be processed by the
4034 dynamic linker so that functions have at most one
4035 fptr. For this reason, we need to differentiate
4036 between global and local plabels, which we do by
4037 providing the function symbol for a global plabel
4038 reloc, and no symbol for local plabels. */
4041 && sym_sec
->output_section
!= NULL
4042 && ! bfd_is_abs_section (sym_sec
))
4046 osec
= sym_sec
->output_section
;
4047 indx
= elf_section_data (osec
)->dynindx
;
4050 osec
= htab
->etab
.text_index_section
;
4051 indx
= elf_section_data (osec
)->dynindx
;
4053 BFD_ASSERT (indx
!= 0);
4055 /* We are turning this relocation into one
4056 against a section symbol, so subtract out the
4057 output section's address but not the offset
4058 of the input section in the output section. */
4059 outrel
.r_addend
-= osec
->vma
;
4062 outrel
.r_info
= ELF32_R_INFO (indx
, r_type
);
4064 sreloc
= elf_section_data (input_section
)->sreloc
;
4068 loc
= sreloc
->contents
;
4069 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4070 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4074 case R_PARISC_TLS_LDM21L
:
4075 case R_PARISC_TLS_LDM14R
:
4079 off
= htab
->tls_ldm_got
.offset
;
4084 Elf_Internal_Rela outrel
;
4087 outrel
.r_offset
= (off
4088 + htab
->etab
.sgot
->output_section
->vma
4089 + htab
->etab
.sgot
->output_offset
);
4090 outrel
.r_addend
= 0;
4091 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32
);
4092 loc
= htab
->etab
.srelgot
->contents
;
4093 loc
+= htab
->etab
.srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4095 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4096 htab
->tls_ldm_got
.offset
|= 1;
4099 /* Add the base of the GOT to the relocation value. */
4101 + htab
->etab
.sgot
->output_offset
4102 + htab
->etab
.sgot
->output_section
->vma
);
4107 case R_PARISC_TLS_LDO21L
:
4108 case R_PARISC_TLS_LDO14R
:
4109 relocation
-= dtpoff_base (info
);
4112 case R_PARISC_TLS_GD21L
:
4113 case R_PARISC_TLS_GD14R
:
4114 case R_PARISC_TLS_IE21L
:
4115 case R_PARISC_TLS_IE14R
:
4125 dyn
= htab
->etab
.dynamic_sections_created
;
4127 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
4128 bfd_link_pic (info
),
4130 && (!bfd_link_pic (info
)
4131 || !SYMBOL_REFERENCES_LOCAL (info
, &hh
->eh
)))
4133 indx
= hh
->eh
.dynindx
;
4135 off
= hh
->eh
.got
.offset
;
4136 tls_type
= hh
->tls_type
;
4140 off
= local_got_offsets
[r_symndx
];
4141 tls_type
= hppa_elf_local_got_tls_type (input_bfd
)[r_symndx
];
4144 if (tls_type
== GOT_UNKNOWN
)
4151 bfd_boolean need_relocs
= FALSE
;
4152 Elf_Internal_Rela outrel
;
4153 bfd_byte
*loc
= NULL
;
4156 /* The GOT entries have not been initialized yet. Do it
4157 now, and emit any relocations. If both an IE GOT and a
4158 GD GOT are necessary, we emit the GD first. */
4160 if ((bfd_link_pic (info
) || indx
!= 0)
4162 || ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
4163 || hh
->eh
.root
.type
!= bfd_link_hash_undefweak
))
4166 loc
= htab
->etab
.srelgot
->contents
;
4167 /* FIXME (CAO): Should this be reloc_count++ ? */
4168 loc
+= htab
->etab
.srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
4171 if (tls_type
& GOT_TLS_GD
)
4175 outrel
.r_offset
= (cur_off
4176 + htab
->etab
.sgot
->output_section
->vma
4177 + htab
->etab
.sgot
->output_offset
);
4178 outrel
.r_info
= ELF32_R_INFO (indx
,R_PARISC_TLS_DTPMOD32
);
4179 outrel
.r_addend
= 0;
4180 bfd_put_32 (output_bfd
, 0, htab
->etab
.sgot
->contents
+ cur_off
);
4181 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4182 htab
->etab
.srelgot
->reloc_count
++;
4183 loc
+= sizeof (Elf32_External_Rela
);
4186 bfd_put_32 (output_bfd
, relocation
- dtpoff_base (info
),
4187 htab
->etab
.sgot
->contents
+ cur_off
+ 4);
4190 bfd_put_32 (output_bfd
, 0,
4191 htab
->etab
.sgot
->contents
+ cur_off
+ 4);
4192 outrel
.r_info
= ELF32_R_INFO (indx
, R_PARISC_TLS_DTPOFF32
);
4193 outrel
.r_offset
+= 4;
4194 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,loc
);
4195 htab
->etab
.srelgot
->reloc_count
++;
4196 loc
+= sizeof (Elf32_External_Rela
);
4201 /* If we are not emitting relocations for a
4202 general dynamic reference, then we must be in a
4203 static link or an executable link with the
4204 symbol binding locally. Mark it as belonging
4205 to module 1, the executable. */
4206 bfd_put_32 (output_bfd
, 1,
4207 htab
->etab
.sgot
->contents
+ cur_off
);
4208 bfd_put_32 (output_bfd
, relocation
- dtpoff_base (info
),
4209 htab
->etab
.sgot
->contents
+ cur_off
+ 4);
4216 if (tls_type
& GOT_TLS_IE
)
4220 outrel
.r_offset
= (cur_off
4221 + htab
->etab
.sgot
->output_section
->vma
4222 + htab
->etab
.sgot
->output_offset
);
4223 outrel
.r_info
= ELF32_R_INFO (indx
, R_PARISC_TLS_TPREL32
);
4226 outrel
.r_addend
= relocation
- dtpoff_base (info
);
4228 outrel
.r_addend
= 0;
4230 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4231 htab
->etab
.srelgot
->reloc_count
++;
4232 loc
+= sizeof (Elf32_External_Rela
);
4235 bfd_put_32 (output_bfd
, tpoff (info
, relocation
),
4236 htab
->etab
.sgot
->contents
+ cur_off
);
4242 hh
->eh
.got
.offset
|= 1;
4244 local_got_offsets
[r_symndx
] |= 1;
4247 if ((tls_type
& GOT_TLS_GD
)
4248 && r_type
!= R_PARISC_TLS_GD21L
4249 && r_type
!= R_PARISC_TLS_GD14R
)
4250 off
+= 2 * GOT_ENTRY_SIZE
;
4252 /* Add the base of the GOT to the relocation value. */
4254 + htab
->etab
.sgot
->output_offset
4255 + htab
->etab
.sgot
->output_section
->vma
);
4260 case R_PARISC_TLS_LE21L
:
4261 case R_PARISC_TLS_LE14R
:
4263 relocation
= tpoff (info
, relocation
);
4272 rstatus
= final_link_relocate (input_section
, contents
, rela
, relocation
,
4273 htab
, sym_sec
, hh
, info
);
4275 if (rstatus
== bfd_reloc_ok
)
4279 sym_name
= hh_name (hh
);
4282 sym_name
= bfd_elf_string_from_elf_section (input_bfd
,
4283 symtab_hdr
->sh_link
,
4285 if (sym_name
== NULL
)
4287 if (*sym_name
== '\0')
4288 sym_name
= bfd_section_name (input_bfd
, sym_sec
);
4291 howto
= elf_hppa_howto_table
+ r_type
;
4293 if (rstatus
== bfd_reloc_undefined
|| rstatus
== bfd_reloc_notsupported
)
4295 if (rstatus
== bfd_reloc_notsupported
|| !warned_undef
)
4298 /* xgettext:c-format */
4299 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4302 (long) rela
->r_offset
,
4305 bfd_set_error (bfd_error_bad_value
);
4310 (*info
->callbacks
->reloc_overflow
)
4311 (info
, (hh
? &hh
->eh
.root
: NULL
), sym_name
, howto
->name
,
4312 (bfd_vma
) 0, input_bfd
, input_section
, rela
->r_offset
);
4318 /* Finish up dynamic symbol handling. We set the contents of various
4319 dynamic sections here. */
4322 elf32_hppa_finish_dynamic_symbol (bfd
*output_bfd
,
4323 struct bfd_link_info
*info
,
4324 struct elf_link_hash_entry
*eh
,
4325 Elf_Internal_Sym
*sym
)
4327 struct elf32_hppa_link_hash_table
*htab
;
4328 Elf_Internal_Rela rela
;
4331 htab
= hppa_link_hash_table (info
);
4335 if (eh
->plt
.offset
!= (bfd_vma
) -1)
4339 if (eh
->plt
.offset
& 1)
4342 /* This symbol has an entry in the procedure linkage table. Set
4345 The format of a plt entry is
4350 if (eh
->root
.type
== bfd_link_hash_defined
4351 || eh
->root
.type
== bfd_link_hash_defweak
)
4353 value
= eh
->root
.u
.def
.value
;
4354 if (eh
->root
.u
.def
.section
->output_section
!= NULL
)
4355 value
+= (eh
->root
.u
.def
.section
->output_offset
4356 + eh
->root
.u
.def
.section
->output_section
->vma
);
4359 /* Create a dynamic IPLT relocation for this entry. */
4360 rela
.r_offset
= (eh
->plt
.offset
4361 + htab
->etab
.splt
->output_offset
4362 + htab
->etab
.splt
->output_section
->vma
);
4363 if (eh
->dynindx
!= -1)
4365 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_IPLT
);
4370 /* This symbol has been marked to become local, and is
4371 used by a plabel so must be kept in the .plt. */
4372 rela
.r_info
= ELF32_R_INFO (0, R_PARISC_IPLT
);
4373 rela
.r_addend
= value
;
4376 loc
= htab
->etab
.srelplt
->contents
;
4377 loc
+= htab
->etab
.srelplt
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4378 bfd_elf32_swap_reloca_out (htab
->etab
.splt
->output_section
->owner
, &rela
, loc
);
4380 if (!eh
->def_regular
)
4382 /* Mark the symbol as undefined, rather than as defined in
4383 the .plt section. Leave the value alone. */
4384 sym
->st_shndx
= SHN_UNDEF
;
4388 if (eh
->got
.offset
!= (bfd_vma
) -1
4389 && (hppa_elf_hash_entry (eh
)->tls_type
& GOT_TLS_GD
) == 0
4390 && (hppa_elf_hash_entry (eh
)->tls_type
& GOT_TLS_IE
) == 0)
4392 /* This symbol has an entry in the global offset table. Set it
4395 rela
.r_offset
= ((eh
->got
.offset
&~ (bfd_vma
) 1)
4396 + htab
->etab
.sgot
->output_offset
4397 + htab
->etab
.sgot
->output_section
->vma
);
4399 /* If this is a -Bsymbolic link and the symbol is defined
4400 locally or was forced to be local because of a version file,
4401 we just want to emit a RELATIVE reloc. The entry in the
4402 global offset table will already have been initialized in the
4403 relocate_section function. */
4404 if (bfd_link_pic (info
)
4405 && (SYMBOLIC_BIND (info
, eh
) || eh
->dynindx
== -1)
4408 rela
.r_info
= ELF32_R_INFO (0, R_PARISC_DIR32
);
4409 rela
.r_addend
= (eh
->root
.u
.def
.value
4410 + eh
->root
.u
.def
.section
->output_offset
4411 + eh
->root
.u
.def
.section
->output_section
->vma
);
4415 if ((eh
->got
.offset
& 1) != 0)
4418 bfd_put_32 (output_bfd
, 0, htab
->etab
.sgot
->contents
+ (eh
->got
.offset
& ~1));
4419 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_DIR32
);
4423 loc
= htab
->etab
.srelgot
->contents
;
4424 loc
+= htab
->etab
.srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4425 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4432 /* This symbol needs a copy reloc. Set it up. */
4434 if (! (eh
->dynindx
!= -1
4435 && (eh
->root
.type
== bfd_link_hash_defined
4436 || eh
->root
.type
== bfd_link_hash_defweak
)))
4439 rela
.r_offset
= (eh
->root
.u
.def
.value
4440 + eh
->root
.u
.def
.section
->output_offset
4441 + eh
->root
.u
.def
.section
->output_section
->vma
);
4443 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_COPY
);
4444 if ((eh
->root
.u
.def
.section
->flags
& SEC_READONLY
) != 0)
4445 sec
= htab
->etab
.sreldynrelro
;
4447 sec
= htab
->etab
.srelbss
;
4448 loc
= sec
->contents
+ sec
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4449 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4452 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4453 if (eh
== htab
->etab
.hdynamic
|| eh
== htab
->etab
.hgot
)
4455 sym
->st_shndx
= SHN_ABS
;
4461 /* Used to decide how to sort relocs in an optimal manner for the
4462 dynamic linker, before writing them out. */
4464 static enum elf_reloc_type_class
4465 elf32_hppa_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
4466 const asection
*rel_sec ATTRIBUTE_UNUSED
,
4467 const Elf_Internal_Rela
*rela
)
4469 /* Handle TLS relocs first; we don't want them to be marked
4470 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
4472 switch ((int) ELF32_R_TYPE (rela
->r_info
))
4474 case R_PARISC_TLS_DTPMOD32
:
4475 case R_PARISC_TLS_DTPOFF32
:
4476 case R_PARISC_TLS_TPREL32
:
4477 return reloc_class_normal
;
4480 if (ELF32_R_SYM (rela
->r_info
) == STN_UNDEF
)
4481 return reloc_class_relative
;
4483 switch ((int) ELF32_R_TYPE (rela
->r_info
))
4486 return reloc_class_plt
;
4488 return reloc_class_copy
;
4490 return reloc_class_normal
;
4494 /* Finish up the dynamic sections. */
4497 elf32_hppa_finish_dynamic_sections (bfd
*output_bfd
,
4498 struct bfd_link_info
*info
)
4501 struct elf32_hppa_link_hash_table
*htab
;
4505 htab
= hppa_link_hash_table (info
);
4509 dynobj
= htab
->etab
.dynobj
;
4511 sgot
= htab
->etab
.sgot
;
4512 /* A broken linker script might have discarded the dynamic sections.
4513 Catch this here so that we do not seg-fault later on. */
4514 if (sgot
!= NULL
&& bfd_is_abs_section (sgot
->output_section
))
4517 sdyn
= bfd_get_linker_section (dynobj
, ".dynamic");
4519 if (htab
->etab
.dynamic_sections_created
)
4521 Elf32_External_Dyn
*dyncon
, *dynconend
;
4526 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
4527 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
4528 for (; dyncon
< dynconend
; dyncon
++)
4530 Elf_Internal_Dyn dyn
;
4533 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4541 /* Use PLTGOT to set the GOT register. */
4542 dyn
.d_un
.d_ptr
= elf_gp (output_bfd
);
4546 s
= htab
->etab
.srelplt
;
4547 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
4551 s
= htab
->etab
.srelplt
;
4552 dyn
.d_un
.d_val
= s
->size
;
4556 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
4560 if (sgot
!= NULL
&& sgot
->size
!= 0)
4562 /* Fill in the first entry in the global offset table.
4563 We use it to point to our dynamic section, if we have one. */
4564 bfd_put_32 (output_bfd
,
4565 sdyn
? sdyn
->output_section
->vma
+ sdyn
->output_offset
: 0,
4568 /* The second entry is reserved for use by the dynamic linker. */
4569 memset (sgot
->contents
+ GOT_ENTRY_SIZE
, 0, GOT_ENTRY_SIZE
);
4571 /* Set .got entry size. */
4572 elf_section_data (sgot
->output_section
)
4573 ->this_hdr
.sh_entsize
= GOT_ENTRY_SIZE
;
4576 if (htab
->etab
.splt
!= NULL
&& htab
->etab
.splt
->size
!= 0)
4578 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4579 plt stubs and as such the section does not hold a table of fixed-size
4581 elf_section_data (htab
->etab
.splt
->output_section
)->this_hdr
.sh_entsize
= 0;
4583 if (htab
->need_plt_stub
)
4585 /* Set up the .plt stub. */
4586 memcpy (htab
->etab
.splt
->contents
4587 + htab
->etab
.splt
->size
- sizeof (plt_stub
),
4588 plt_stub
, sizeof (plt_stub
));
4590 if ((htab
->etab
.splt
->output_offset
4591 + htab
->etab
.splt
->output_section
->vma
4592 + htab
->etab
.splt
->size
)
4593 != (sgot
->output_offset
4594 + sgot
->output_section
->vma
))
4597 (_(".got section not immediately after .plt section"));
4606 /* Called when writing out an object file to decide the type of a
4609 elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym
*elf_sym
, int type
)
4611 if (ELF_ST_TYPE (elf_sym
->st_info
) == STT_PARISC_MILLI
)
4612 return STT_PARISC_MILLI
;
4617 /* Misc BFD support code. */
4618 #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4619 #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4620 #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4621 #define elf_info_to_howto elf_hppa_info_to_howto
4622 #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4624 /* Stuff for the BFD linker. */
4625 #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4626 #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4627 #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4628 #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4629 #define elf_backend_check_relocs elf32_hppa_check_relocs
4630 #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4631 #define elf_backend_fake_sections elf_hppa_fake_sections
4632 #define elf_backend_relocate_section elf32_hppa_relocate_section
4633 #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4634 #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4635 #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4636 #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4637 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4638 #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4639 #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
4640 #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4641 #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4642 #define elf_backend_object_p elf32_hppa_object_p
4643 #define elf_backend_final_write_processing elf_hppa_final_write_processing
4644 #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4645 #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4646 #define elf_backend_action_discarded elf_hppa_action_discarded
4648 #define elf_backend_can_gc_sections 1
4649 #define elf_backend_can_refcount 1
4650 #define elf_backend_plt_alignment 2
4651 #define elf_backend_want_got_plt 0
4652 #define elf_backend_plt_readonly 0
4653 #define elf_backend_want_plt_sym 0
4654 #define elf_backend_got_header_size 8
4655 #define elf_backend_want_dynrelro 1
4656 #define elf_backend_rela_normal 1
4657 #define elf_backend_dtrel_excludes_plt 1
4659 #define TARGET_BIG_SYM hppa_elf32_vec
4660 #define TARGET_BIG_NAME "elf32-hppa"
4661 #define ELF_ARCH bfd_arch_hppa
4662 #define ELF_TARGET_ID HPPA32_ELF_DATA
4663 #define ELF_MACHINE_CODE EM_PARISC
4664 #define ELF_MAXPAGESIZE 0x1000
4665 #define ELF_OSABI ELFOSABI_HPUX
4666 #define elf32_bed elf32_hppa_hpux_bed
4668 #include "elf32-target.h"
4670 #undef TARGET_BIG_SYM
4671 #define TARGET_BIG_SYM hppa_elf32_linux_vec
4672 #undef TARGET_BIG_NAME
4673 #define TARGET_BIG_NAME "elf32-hppa-linux"
4675 #define ELF_OSABI ELFOSABI_GNU
4677 #define elf32_bed elf32_hppa_linux_bed
4679 #include "elf32-target.h"
4681 #undef TARGET_BIG_SYM
4682 #define TARGET_BIG_SYM hppa_elf32_nbsd_vec
4683 #undef TARGET_BIG_NAME
4684 #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4686 #define ELF_OSABI ELFOSABI_NETBSD
4688 #define elf32_bed elf32_hppa_netbsd_bed
4690 #include "elf32-target.h"