1 /* BFD back-end for HP PA-RISC ELF files.
2 Copyright (C) 1990-2017 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+%#Lx): cannot reach %s, recompile with -ffunction-sections"),
840 hsh
->target_section
->owner
,
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 if (eh_dir
->versioned
!= versioned_hidden
)
1060 eh_dir
->ref_dynamic
|= eh_ind
->ref_dynamic
;
1061 eh_dir
->ref_regular
|= eh_ind
->ref_regular
;
1062 eh_dir
->ref_regular_nonweak
|= eh_ind
->ref_regular_nonweak
;
1063 eh_dir
->needs_plt
|= eh_ind
->needs_plt
;
1067 if (eh_ind
->root
.type
== bfd_link_hash_indirect
)
1069 hh_dir
->plabel
|= hh_ind
->plabel
;
1070 hh_dir
->tls_type
|= hh_ind
->tls_type
;
1071 hh_ind
->tls_type
= GOT_UNKNOWN
;
1074 _bfd_elf_link_hash_copy_indirect (info
, eh_dir
, eh_ind
);
1079 elf32_hppa_optimized_tls_reloc (struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
1080 int r_type
, int is_local ATTRIBUTE_UNUSED
)
1082 /* For now we don't support linker optimizations. */
1086 /* Return a pointer to the local GOT, PLT and TLS reference counts
1087 for ABFD. Returns NULL if the storage allocation fails. */
1089 static bfd_signed_vma
*
1090 hppa32_elf_local_refcounts (bfd
*abfd
)
1092 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1093 bfd_signed_vma
*local_refcounts
;
1095 local_refcounts
= elf_local_got_refcounts (abfd
);
1096 if (local_refcounts
== NULL
)
1100 /* Allocate space for local GOT and PLT reference
1101 counts. Done this way to save polluting elf_obj_tdata
1102 with another target specific pointer. */
1103 size
= symtab_hdr
->sh_info
;
1104 size
*= 2 * sizeof (bfd_signed_vma
);
1105 /* Add in space to store the local GOT TLS types. */
1106 size
+= symtab_hdr
->sh_info
;
1107 local_refcounts
= bfd_zalloc (abfd
, size
);
1108 if (local_refcounts
== NULL
)
1110 elf_local_got_refcounts (abfd
) = local_refcounts
;
1111 memset (hppa_elf_local_got_tls_type (abfd
), GOT_UNKNOWN
,
1112 symtab_hdr
->sh_info
);
1114 return local_refcounts
;
1118 /* Look through the relocs for a section during the first phase, and
1119 calculate needed space in the global offset table, procedure linkage
1120 table, and dynamic reloc sections. At this point we haven't
1121 necessarily read all the input files. */
1124 elf32_hppa_check_relocs (bfd
*abfd
,
1125 struct bfd_link_info
*info
,
1127 const Elf_Internal_Rela
*relocs
)
1129 Elf_Internal_Shdr
*symtab_hdr
;
1130 struct elf_link_hash_entry
**eh_syms
;
1131 const Elf_Internal_Rela
*rela
;
1132 const Elf_Internal_Rela
*rela_end
;
1133 struct elf32_hppa_link_hash_table
*htab
;
1135 int tls_type
= GOT_UNKNOWN
, old_tls_type
= GOT_UNKNOWN
;
1137 if (bfd_link_relocatable (info
))
1140 htab
= hppa_link_hash_table (info
);
1143 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1144 eh_syms
= elf_sym_hashes (abfd
);
1147 rela_end
= relocs
+ sec
->reloc_count
;
1148 for (rela
= relocs
; rela
< rela_end
; rela
++)
1157 unsigned int r_symndx
, r_type
;
1158 struct elf32_hppa_link_hash_entry
*hh
;
1161 r_symndx
= ELF32_R_SYM (rela
->r_info
);
1163 if (r_symndx
< symtab_hdr
->sh_info
)
1167 hh
= hppa_elf_hash_entry (eh_syms
[r_symndx
- symtab_hdr
->sh_info
]);
1168 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
1169 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
1170 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
1172 /* PR15323, ref flags aren't set for references in the same
1174 hh
->eh
.root
.non_ir_ref_regular
= 1;
1177 r_type
= ELF32_R_TYPE (rela
->r_info
);
1178 r_type
= elf32_hppa_optimized_tls_reloc (info
, r_type
, hh
== NULL
);
1182 case R_PARISC_DLTIND14F
:
1183 case R_PARISC_DLTIND14R
:
1184 case R_PARISC_DLTIND21L
:
1185 /* This symbol requires a global offset table entry. */
1186 need_entry
= NEED_GOT
;
1189 case R_PARISC_PLABEL14R
: /* "Official" procedure labels. */
1190 case R_PARISC_PLABEL21L
:
1191 case R_PARISC_PLABEL32
:
1192 /* If the addend is non-zero, we break badly. */
1193 if (rela
->r_addend
!= 0)
1196 /* If we are creating a shared library, then we need to
1197 create a PLT entry for all PLABELs, because PLABELs with
1198 local symbols may be passed via a pointer to another
1199 object. Additionally, output a dynamic relocation
1200 pointing to the PLT entry.
1202 For executables, the original 32-bit ABI allowed two
1203 different styles of PLABELs (function pointers): For
1204 global functions, the PLABEL word points into the .plt
1205 two bytes past a (function address, gp) pair, and for
1206 local functions the PLABEL points directly at the
1207 function. The magic +2 for the first type allows us to
1208 differentiate between the two. As you can imagine, this
1209 is a real pain when it comes to generating code to call
1210 functions indirectly or to compare function pointers.
1211 We avoid the mess by always pointing a PLABEL into the
1212 .plt, even for local functions. */
1213 need_entry
= PLT_PLABEL
| NEED_PLT
| NEED_DYNREL
;
1216 case R_PARISC_PCREL12F
:
1217 htab
->has_12bit_branch
= 1;
1220 case R_PARISC_PCREL17C
:
1221 case R_PARISC_PCREL17F
:
1222 htab
->has_17bit_branch
= 1;
1225 case R_PARISC_PCREL22F
:
1226 htab
->has_22bit_branch
= 1;
1228 /* Function calls might need to go through the .plt, and
1229 might require long branch stubs. */
1232 /* We know local syms won't need a .plt entry, and if
1233 they need a long branch stub we can't guarantee that
1234 we can reach the stub. So just flag an error later
1235 if we're doing a shared link and find we need a long
1241 /* Global symbols will need a .plt entry if they remain
1242 global, and in most cases won't need a long branch
1243 stub. Unfortunately, we have to cater for the case
1244 where a symbol is forced local by versioning, or due
1245 to symbolic linking, and we lose the .plt entry. */
1246 need_entry
= NEED_PLT
;
1247 if (hh
->eh
.type
== STT_PARISC_MILLI
)
1252 case R_PARISC_SEGBASE
: /* Used to set segment base. */
1253 case R_PARISC_SEGREL32
: /* Relative reloc, used for unwind. */
1254 case R_PARISC_PCREL14F
: /* PC relative load/store. */
1255 case R_PARISC_PCREL14R
:
1256 case R_PARISC_PCREL17R
: /* External branches. */
1257 case R_PARISC_PCREL21L
: /* As above, and for load/store too. */
1258 case R_PARISC_PCREL32
:
1259 /* We don't need to propagate the relocation if linking a
1260 shared object since these are section relative. */
1263 case R_PARISC_DPREL14F
: /* Used for gp rel data load/store. */
1264 case R_PARISC_DPREL14R
:
1265 case R_PARISC_DPREL21L
:
1266 if (bfd_link_pic (info
))
1269 /* xgettext:c-format */
1270 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1272 elf_hppa_howto_table
[r_type
].name
);
1273 bfd_set_error (bfd_error_bad_value
);
1278 case R_PARISC_DIR17F
: /* Used for external branches. */
1279 case R_PARISC_DIR17R
:
1280 case R_PARISC_DIR14F
: /* Used for load/store from absolute locn. */
1281 case R_PARISC_DIR14R
:
1282 case R_PARISC_DIR21L
: /* As above, and for ext branches too. */
1283 case R_PARISC_DIR32
: /* .word relocs. */
1284 /* We may want to output a dynamic relocation later. */
1285 need_entry
= NEED_DYNREL
;
1288 /* This relocation describes the C++ object vtable hierarchy.
1289 Reconstruct it for later use during GC. */
1290 case R_PARISC_GNU_VTINHERIT
:
1291 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, &hh
->eh
, rela
->r_offset
))
1295 /* This relocation describes which C++ vtable entries are actually
1296 used. Record for later use during GC. */
1297 case R_PARISC_GNU_VTENTRY
:
1298 BFD_ASSERT (hh
!= NULL
);
1300 && !bfd_elf_gc_record_vtentry (abfd
, sec
, &hh
->eh
, rela
->r_addend
))
1304 case R_PARISC_TLS_GD21L
:
1305 case R_PARISC_TLS_GD14R
:
1306 case R_PARISC_TLS_LDM21L
:
1307 case R_PARISC_TLS_LDM14R
:
1308 need_entry
= NEED_GOT
;
1311 case R_PARISC_TLS_IE21L
:
1312 case R_PARISC_TLS_IE14R
:
1313 if (bfd_link_pic (info
))
1314 info
->flags
|= DF_STATIC_TLS
;
1315 need_entry
= NEED_GOT
;
1322 /* Now carry out our orders. */
1323 if (need_entry
& NEED_GOT
)
1328 tls_type
= GOT_NORMAL
;
1330 case R_PARISC_TLS_GD21L
:
1331 case R_PARISC_TLS_GD14R
:
1332 tls_type
|= GOT_TLS_GD
;
1334 case R_PARISC_TLS_LDM21L
:
1335 case R_PARISC_TLS_LDM14R
:
1336 tls_type
|= GOT_TLS_LDM
;
1338 case R_PARISC_TLS_IE21L
:
1339 case R_PARISC_TLS_IE14R
:
1340 tls_type
|= GOT_TLS_IE
;
1344 /* Allocate space for a GOT entry, as well as a dynamic
1345 relocation for this entry. */
1346 if (htab
->etab
.sgot
== NULL
)
1348 if (!elf32_hppa_create_dynamic_sections (htab
->etab
.dynobj
, info
))
1352 if (r_type
== R_PARISC_TLS_LDM21L
1353 || r_type
== R_PARISC_TLS_LDM14R
)
1354 htab
->tls_ldm_got
.refcount
+= 1;
1359 hh
->eh
.got
.refcount
+= 1;
1360 old_tls_type
= hh
->tls_type
;
1364 bfd_signed_vma
*local_got_refcounts
;
1366 /* This is a global offset table entry for a local symbol. */
1367 local_got_refcounts
= hppa32_elf_local_refcounts (abfd
);
1368 if (local_got_refcounts
== NULL
)
1370 local_got_refcounts
[r_symndx
] += 1;
1372 old_tls_type
= hppa_elf_local_got_tls_type (abfd
) [r_symndx
];
1375 tls_type
|= old_tls_type
;
1377 if (old_tls_type
!= tls_type
)
1380 hh
->tls_type
= tls_type
;
1382 hppa_elf_local_got_tls_type (abfd
) [r_symndx
] = tls_type
;
1388 if (need_entry
& NEED_PLT
)
1390 /* If we are creating a shared library, and this is a reloc
1391 against a weak symbol or a global symbol in a dynamic
1392 object, then we will be creating an import stub and a
1393 .plt entry for the symbol. Similarly, on a normal link
1394 to symbols defined in a dynamic object we'll need the
1395 import stub and a .plt entry. We don't know yet whether
1396 the symbol is defined or not, so make an entry anyway and
1397 clean up later in adjust_dynamic_symbol. */
1398 if ((sec
->flags
& SEC_ALLOC
) != 0)
1402 hh
->eh
.needs_plt
= 1;
1403 hh
->eh
.plt
.refcount
+= 1;
1405 /* If this .plt entry is for a plabel, mark it so
1406 that adjust_dynamic_symbol will keep the entry
1407 even if it appears to be local. */
1408 if (need_entry
& PLT_PLABEL
)
1411 else if (need_entry
& PLT_PLABEL
)
1413 bfd_signed_vma
*local_got_refcounts
;
1414 bfd_signed_vma
*local_plt_refcounts
;
1416 local_got_refcounts
= hppa32_elf_local_refcounts (abfd
);
1417 if (local_got_refcounts
== NULL
)
1419 local_plt_refcounts
= (local_got_refcounts
1420 + symtab_hdr
->sh_info
);
1421 local_plt_refcounts
[r_symndx
] += 1;
1426 if ((need_entry
& NEED_DYNREL
) != 0
1427 && (sec
->flags
& SEC_ALLOC
) != 0)
1429 /* Flag this symbol as having a non-got, non-plt reference
1430 so that we generate copy relocs if it turns out to be
1432 if (hh
!= NULL
&& !bfd_link_pic (info
))
1433 hh
->eh
.non_got_ref
= 1;
1435 /* If we are creating a shared library then we need to copy
1436 the reloc into the shared library. However, if we are
1437 linking with -Bsymbolic, we need only copy absolute
1438 relocs or relocs against symbols that are not defined in
1439 an object we are including in the link. PC- or DP- or
1440 DLT-relative relocs against any local sym or global sym
1441 with DEF_REGULAR set, can be discarded. At this point we
1442 have not seen all the input files, so it is possible that
1443 DEF_REGULAR is not set now but will be set later (it is
1444 never cleared). We account for that possibility below by
1445 storing information in the dyn_relocs field of the
1448 A similar situation to the -Bsymbolic case occurs when
1449 creating shared libraries and symbol visibility changes
1450 render the symbol local.
1452 As it turns out, all the relocs we will be creating here
1453 are absolute, so we cannot remove them on -Bsymbolic
1454 links or visibility changes anyway. A STUB_REL reloc
1455 is absolute too, as in that case it is the reloc in the
1456 stub we will be creating, rather than copying the PCREL
1457 reloc in the branch.
1459 If on the other hand, we are creating an executable, we
1460 may need to keep relocations for symbols satisfied by a
1461 dynamic library if we manage to avoid copy relocs for the
1463 if ((bfd_link_pic (info
)
1464 && (IS_ABSOLUTE_RELOC (r_type
)
1466 && (!SYMBOLIC_BIND (info
, &hh
->eh
)
1467 || hh
->eh
.root
.type
== bfd_link_hash_defweak
1468 || !hh
->eh
.def_regular
))))
1469 || (ELIMINATE_COPY_RELOCS
1470 && !bfd_link_pic (info
)
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 /* Support for core dump NOTE sections. */
1571 elf32_hppa_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
1576 switch (note
->descsz
)
1581 case 396: /* Linux/hppa */
1583 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
1586 elf_tdata (abfd
)->core
->lwpid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
1595 /* Make a ".reg/999" section. */
1596 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
1597 size
, note
->descpos
+ offset
);
1601 elf32_hppa_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
1603 switch (note
->descsz
)
1608 case 124: /* Linux/hppa elf_prpsinfo. */
1609 elf_tdata (abfd
)->core
->program
1610 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
1611 elf_tdata (abfd
)->core
->command
1612 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
1615 /* Note that for some reason, a spurious space is tacked
1616 onto the end of the args in some (at least one anyway)
1617 implementations, so strip it off if it exists. */
1619 char *command
= elf_tdata (abfd
)->core
->command
;
1620 int n
= strlen (command
);
1622 if (0 < n
&& command
[n
- 1] == ' ')
1623 command
[n
- 1] = '\0';
1629 /* Our own version of hide_symbol, so that we can keep plt entries for
1633 elf32_hppa_hide_symbol (struct bfd_link_info
*info
,
1634 struct elf_link_hash_entry
*eh
,
1635 bfd_boolean force_local
)
1639 eh
->forced_local
= 1;
1640 if (eh
->dynindx
!= -1)
1643 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
1647 /* PR 16082: Remove version information from hidden symbol. */
1648 eh
->verinfo
.verdef
= NULL
;
1649 eh
->verinfo
.vertree
= NULL
;
1652 /* STT_GNU_IFUNC symbol must go through PLT. */
1653 if (! hppa_elf_hash_entry (eh
)->plabel
1654 && eh
->type
!= STT_GNU_IFUNC
)
1657 eh
->plt
= elf_hash_table (info
)->init_plt_offset
;
1661 /* Adjust a symbol defined by a dynamic object and referenced by a
1662 regular object. The current definition is in some section of the
1663 dynamic object, but we're not including those sections. We have to
1664 change the definition to something the rest of the link can
1668 elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info
*info
,
1669 struct elf_link_hash_entry
*eh
)
1671 struct elf32_hppa_link_hash_table
*htab
;
1672 asection
*sec
, *srel
;
1674 /* If this is a function, put it in the procedure linkage table. We
1675 will fill in the contents of the procedure linkage table later. */
1676 if (eh
->type
== STT_FUNC
1679 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1680 The refcounts are not reliable when it has been hidden since
1681 hide_symbol can be called before the plabel flag is set. */
1682 if (hppa_elf_hash_entry (eh
)->plabel
)
1683 eh
->plt
.refcount
= 1;
1685 else if (eh
->plt
.refcount
<= 0
1686 || SYMBOL_CALLS_LOCAL (info
, eh
)
1687 || UNDEFWEAK_NO_DYNAMIC_RELOC (info
, eh
))
1689 /* The .plt entry is not needed when:
1690 a) Garbage collection has removed all references to the
1692 b) We know for certain the symbol is defined in this
1693 object, and it's not a weak definition, nor is the symbol
1694 used by a plabel relocation. Either this object is the
1695 application or we are doing a shared symbolic link. */
1697 eh
->plt
.offset
= (bfd_vma
) -1;
1704 eh
->plt
.offset
= (bfd_vma
) -1;
1706 /* If this is a weak symbol, and there is a real definition, the
1707 processor independent code will have arranged for us to see the
1708 real definition first, and we can just use the same value. */
1709 if (eh
->u
.weakdef
!= NULL
)
1711 if (eh
->u
.weakdef
->root
.type
!= bfd_link_hash_defined
1712 && eh
->u
.weakdef
->root
.type
!= bfd_link_hash_defweak
)
1714 eh
->root
.u
.def
.section
= eh
->u
.weakdef
->root
.u
.def
.section
;
1715 eh
->root
.u
.def
.value
= eh
->u
.weakdef
->root
.u
.def
.value
;
1716 if (ELIMINATE_COPY_RELOCS
)
1717 eh
->non_got_ref
= eh
->u
.weakdef
->non_got_ref
;
1721 /* This is a reference to a symbol defined by a dynamic object which
1722 is not a function. */
1724 /* If we are creating a shared library, we must presume that the
1725 only references to the symbol are via the global offset table.
1726 For such cases we need not do anything here; the relocations will
1727 be handled correctly by relocate_section. */
1728 if (bfd_link_pic (info
))
1731 /* If there are no references to this symbol that do not use the
1732 GOT, we don't need to generate a copy reloc. */
1733 if (!eh
->non_got_ref
)
1736 if (ELIMINATE_COPY_RELOCS
)
1738 struct elf32_hppa_link_hash_entry
*hh
;
1739 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1741 hh
= hppa_elf_hash_entry (eh
);
1742 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
1744 sec
= hdh_p
->sec
->output_section
;
1745 if (sec
!= NULL
&& (sec
->flags
& SEC_READONLY
) != 0)
1749 /* If we didn't find any dynamic relocs in read-only sections, then
1750 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1753 eh
->non_got_ref
= 0;
1758 /* We must allocate the symbol in our .dynbss section, which will
1759 become part of the .bss section of the executable. There will be
1760 an entry for this symbol in the .dynsym section. The dynamic
1761 object will contain position independent code, so all references
1762 from the dynamic object to this symbol will go through the global
1763 offset table. The dynamic linker will use the .dynsym entry to
1764 determine the address it must put in the global offset table, so
1765 both the dynamic object and the regular object will refer to the
1766 same memory location for the variable. */
1768 htab
= hppa_link_hash_table (info
);
1772 /* We must generate a COPY reloc to tell the dynamic linker to
1773 copy the initial value out of the dynamic object and into the
1774 runtime process image. */
1775 if ((eh
->root
.u
.def
.section
->flags
& SEC_READONLY
) != 0)
1777 sec
= htab
->etab
.sdynrelro
;
1778 srel
= htab
->etab
.sreldynrelro
;
1782 sec
= htab
->etab
.sdynbss
;
1783 srel
= htab
->etab
.srelbss
;
1785 if ((eh
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && eh
->size
!= 0)
1787 srel
->size
+= sizeof (Elf32_External_Rela
);
1791 return _bfd_elf_adjust_dynamic_copy (info
, eh
, sec
);
1794 /* If EH is undefined, make it dynamic if that makes sense. */
1797 ensure_undef_dynamic (struct bfd_link_info
*info
,
1798 struct elf_link_hash_entry
*eh
)
1800 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
1802 if (htab
->dynamic_sections_created
1803 && (eh
->root
.type
== bfd_link_hash_undefweak
1804 || eh
->root
.type
== bfd_link_hash_undefined
)
1805 && eh
->dynindx
== -1
1806 && !eh
->forced_local
1807 && eh
->type
!= STT_PARISC_MILLI
1808 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info
, eh
)
1809 && ELF_ST_VISIBILITY (eh
->other
) == STV_DEFAULT
)
1810 return bfd_elf_link_record_dynamic_symbol (info
, eh
);
1814 /* Allocate space in the .plt for entries that won't have relocations.
1815 ie. plabel entries. */
1818 allocate_plt_static (struct elf_link_hash_entry
*eh
, void *inf
)
1820 struct bfd_link_info
*info
;
1821 struct elf32_hppa_link_hash_table
*htab
;
1822 struct elf32_hppa_link_hash_entry
*hh
;
1825 if (eh
->root
.type
== bfd_link_hash_indirect
)
1828 info
= (struct bfd_link_info
*) inf
;
1829 hh
= hppa_elf_hash_entry (eh
);
1830 htab
= hppa_link_hash_table (info
);
1834 if (htab
->etab
.dynamic_sections_created
1835 && eh
->plt
.refcount
> 0)
1837 if (!ensure_undef_dynamic (info
, eh
))
1840 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info
), eh
))
1842 /* Allocate these later. From this point on, h->plabel
1843 means that the plt entry is only used by a plabel.
1844 We'll be using a normal plt entry for this symbol, so
1845 clear the plabel indicator. */
1849 else if (hh
->plabel
)
1851 /* Make an entry in the .plt section for plabel references
1852 that won't have a .plt entry for other reasons. */
1853 sec
= htab
->etab
.splt
;
1854 eh
->plt
.offset
= sec
->size
;
1855 sec
->size
+= PLT_ENTRY_SIZE
;
1856 if (bfd_link_pic (info
))
1857 htab
->etab
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
1861 /* No .plt entry needed. */
1862 eh
->plt
.offset
= (bfd_vma
) -1;
1868 eh
->plt
.offset
= (bfd_vma
) -1;
1875 /* Allocate space in .plt, .got and associated reloc sections for
1879 allocate_dynrelocs (struct elf_link_hash_entry
*eh
, void *inf
)
1881 struct bfd_link_info
*info
;
1882 struct elf32_hppa_link_hash_table
*htab
;
1884 struct elf32_hppa_link_hash_entry
*hh
;
1885 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1887 if (eh
->root
.type
== bfd_link_hash_indirect
)
1891 htab
= hppa_link_hash_table (info
);
1895 hh
= hppa_elf_hash_entry (eh
);
1897 if (htab
->etab
.dynamic_sections_created
1898 && eh
->plt
.offset
!= (bfd_vma
) -1
1900 && eh
->plt
.refcount
> 0)
1902 /* Make an entry in the .plt section. */
1903 sec
= htab
->etab
.splt
;
1904 eh
->plt
.offset
= sec
->size
;
1905 sec
->size
+= PLT_ENTRY_SIZE
;
1907 /* We also need to make an entry in the .rela.plt section. */
1908 htab
->etab
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
1909 htab
->need_plt_stub
= 1;
1912 if (eh
->got
.refcount
> 0)
1914 if (!ensure_undef_dynamic (info
, eh
))
1917 sec
= htab
->etab
.sgot
;
1918 eh
->got
.offset
= sec
->size
;
1919 sec
->size
+= GOT_ENTRY_SIZE
;
1920 /* R_PARISC_TLS_GD* needs two GOT entries */
1921 if ((hh
->tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
1922 sec
->size
+= GOT_ENTRY_SIZE
* 2;
1923 else if ((hh
->tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
1924 sec
->size
+= GOT_ENTRY_SIZE
;
1925 if (htab
->etab
.dynamic_sections_created
1926 && (bfd_link_pic (info
)
1927 || (eh
->dynindx
!= -1
1928 && !SYMBOL_REFERENCES_LOCAL (info
, eh
)))
1929 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info
, eh
))
1931 htab
->etab
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
1932 if ((hh
->tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
1933 htab
->etab
.srelgot
->size
+= 2 * sizeof (Elf32_External_Rela
);
1934 else if ((hh
->tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
1935 htab
->etab
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
1939 eh
->got
.offset
= (bfd_vma
) -1;
1941 /* If no dynamic sections we can't have dynamic relocs. */
1942 if (!htab
->etab
.dynamic_sections_created
)
1943 hh
->dyn_relocs
= NULL
;
1945 if (hh
->dyn_relocs
== NULL
)
1948 /* If this is a -Bsymbolic shared link, then we need to discard all
1949 space allocated for dynamic pc-relative relocs against symbols
1950 defined in a regular object. For the normal shared case, discard
1951 space for relocs that have become local due to symbol visibility
1953 if (bfd_link_pic (info
))
1955 /* Discard relocs on undefined syms with non-default visibility. */
1956 if ((eh
->root
.type
== bfd_link_hash_undefined
1957 && ELF_ST_VISIBILITY (eh
->other
) != STV_DEFAULT
)
1958 || UNDEFWEAK_NO_DYNAMIC_RELOC (info
, eh
))
1959 hh
->dyn_relocs
= NULL
;
1961 #if RELATIVE_DYNRELOCS
1962 else if (SYMBOL_CALLS_LOCAL (info
, eh
))
1964 struct elf32_hppa_dyn_reloc_entry
**hdh_pp
;
1966 for (hdh_pp
= &hh
->dyn_relocs
; (hdh_p
= *hdh_pp
) != NULL
; )
1968 hdh_p
->count
-= hdh_p
->relative_count
;
1969 hdh_p
->relative_count
= 0;
1970 if (hdh_p
->count
== 0)
1971 *hdh_pp
= hdh_p
->hdh_next
;
1973 hdh_pp
= &hdh_p
->hdh_next
;
1978 if (hh
->dyn_relocs
!= NULL
)
1980 if (!ensure_undef_dynamic (info
, eh
))
1984 else if (ELIMINATE_COPY_RELOCS
)
1986 /* For the non-shared case, discard space for relocs against
1987 symbols which turn out to need copy relocs or are not
1990 if (!eh
->non_got_ref
1991 && !eh
->def_regular
)
1993 if (!ensure_undef_dynamic (info
, eh
))
1996 if (eh
->dynindx
== -1)
1997 hh
->dyn_relocs
= NULL
;
2000 hh
->dyn_relocs
= NULL
;
2003 /* Finally, allocate space. */
2004 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
2006 asection
*sreloc
= elf_section_data (hdh_p
->sec
)->sreloc
;
2007 sreloc
->size
+= hdh_p
->count
* sizeof (Elf32_External_Rela
);
2013 /* This function is called via elf_link_hash_traverse to force
2014 millicode symbols local so they do not end up as globals in the
2015 dynamic symbol table. We ought to be able to do this in
2016 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2017 for all dynamic symbols. Arguably, this is a bug in
2018 elf_adjust_dynamic_symbol. */
2021 clobber_millicode_symbols (struct elf_link_hash_entry
*eh
,
2022 struct bfd_link_info
*info
)
2024 if (eh
->type
== STT_PARISC_MILLI
2025 && !eh
->forced_local
)
2027 elf32_hppa_hide_symbol (info
, eh
, TRUE
);
2032 /* Find any dynamic relocs that apply to read-only sections. */
2035 readonly_dynrelocs (struct elf_link_hash_entry
*eh
, void *inf
)
2037 struct elf32_hppa_link_hash_entry
*hh
;
2038 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
2040 hh
= hppa_elf_hash_entry (eh
);
2041 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
2043 asection
*sec
= hdh_p
->sec
->output_section
;
2045 if (sec
!= NULL
&& (sec
->flags
& SEC_READONLY
) != 0)
2047 struct bfd_link_info
*info
= inf
;
2049 info
->flags
|= DF_TEXTREL
;
2051 /* Not an error, just cut short the traversal. */
2058 /* Set the sizes of the dynamic sections. */
2061 elf32_hppa_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2062 struct bfd_link_info
*info
)
2064 struct elf32_hppa_link_hash_table
*htab
;
2070 htab
= hppa_link_hash_table (info
);
2074 dynobj
= htab
->etab
.dynobj
;
2078 if (htab
->etab
.dynamic_sections_created
)
2080 /* Set the contents of the .interp section to the interpreter. */
2081 if (bfd_link_executable (info
) && !info
->nointerp
)
2083 sec
= bfd_get_linker_section (dynobj
, ".interp");
2086 sec
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
2087 sec
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
2090 /* Force millicode symbols local. */
2091 elf_link_hash_traverse (&htab
->etab
,
2092 clobber_millicode_symbols
,
2096 /* Set up .got and .plt offsets for local syms, and space for local
2098 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
2100 bfd_signed_vma
*local_got
;
2101 bfd_signed_vma
*end_local_got
;
2102 bfd_signed_vma
*local_plt
;
2103 bfd_signed_vma
*end_local_plt
;
2104 bfd_size_type locsymcount
;
2105 Elf_Internal_Shdr
*symtab_hdr
;
2107 char *local_tls_type
;
2109 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2112 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
2114 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
2116 for (hdh_p
= ((struct elf32_hppa_dyn_reloc_entry
*)
2117 elf_section_data (sec
)->local_dynrel
);
2119 hdh_p
= hdh_p
->hdh_next
)
2121 if (!bfd_is_abs_section (hdh_p
->sec
)
2122 && bfd_is_abs_section (hdh_p
->sec
->output_section
))
2124 /* Input section has been discarded, either because
2125 it is a copy of a linkonce section or due to
2126 linker script /DISCARD/, so we'll be discarding
2129 else if (hdh_p
->count
!= 0)
2131 srel
= elf_section_data (hdh_p
->sec
)->sreloc
;
2132 srel
->size
+= hdh_p
->count
* sizeof (Elf32_External_Rela
);
2133 if ((hdh_p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2134 info
->flags
|= DF_TEXTREL
;
2139 local_got
= elf_local_got_refcounts (ibfd
);
2143 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
2144 locsymcount
= symtab_hdr
->sh_info
;
2145 end_local_got
= local_got
+ locsymcount
;
2146 local_tls_type
= hppa_elf_local_got_tls_type (ibfd
);
2147 sec
= htab
->etab
.sgot
;
2148 srel
= htab
->etab
.srelgot
;
2149 for (; local_got
< end_local_got
; ++local_got
)
2153 *local_got
= sec
->size
;
2154 sec
->size
+= GOT_ENTRY_SIZE
;
2155 if ((*local_tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2156 sec
->size
+= 2 * GOT_ENTRY_SIZE
;
2157 else if ((*local_tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2158 sec
->size
+= GOT_ENTRY_SIZE
;
2159 if (bfd_link_pic (info
))
2161 srel
->size
+= sizeof (Elf32_External_Rela
);
2162 if ((*local_tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2163 srel
->size
+= 2 * sizeof (Elf32_External_Rela
);
2164 else if ((*local_tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2165 srel
->size
+= sizeof (Elf32_External_Rela
);
2169 *local_got
= (bfd_vma
) -1;
2174 local_plt
= end_local_got
;
2175 end_local_plt
= local_plt
+ locsymcount
;
2176 if (! htab
->etab
.dynamic_sections_created
)
2178 /* Won't be used, but be safe. */
2179 for (; local_plt
< end_local_plt
; ++local_plt
)
2180 *local_plt
= (bfd_vma
) -1;
2184 sec
= htab
->etab
.splt
;
2185 srel
= htab
->etab
.srelplt
;
2186 for (; local_plt
< end_local_plt
; ++local_plt
)
2190 *local_plt
= sec
->size
;
2191 sec
->size
+= PLT_ENTRY_SIZE
;
2192 if (bfd_link_pic (info
))
2193 srel
->size
+= sizeof (Elf32_External_Rela
);
2196 *local_plt
= (bfd_vma
) -1;
2201 if (htab
->tls_ldm_got
.refcount
> 0)
2203 /* Allocate 2 got entries and 1 dynamic reloc for
2204 R_PARISC_TLS_DTPMOD32 relocs. */
2205 htab
->tls_ldm_got
.offset
= htab
->etab
.sgot
->size
;
2206 htab
->etab
.sgot
->size
+= (GOT_ENTRY_SIZE
* 2);
2207 htab
->etab
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
2210 htab
->tls_ldm_got
.offset
= -1;
2212 /* Do all the .plt entries without relocs first. The dynamic linker
2213 uses the last .plt reloc to find the end of the .plt (and hence
2214 the start of the .got) for lazy linking. */
2215 elf_link_hash_traverse (&htab
->etab
, allocate_plt_static
, info
);
2217 /* Allocate global sym .plt and .got entries, and space for global
2218 sym dynamic relocs. */
2219 elf_link_hash_traverse (&htab
->etab
, allocate_dynrelocs
, info
);
2221 /* The check_relocs and adjust_dynamic_symbol entry points have
2222 determined the sizes of the various dynamic sections. Allocate
2225 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
2227 if ((sec
->flags
& SEC_LINKER_CREATED
) == 0)
2230 if (sec
== htab
->etab
.splt
)
2232 if (htab
->need_plt_stub
)
2234 /* Make space for the plt stub at the end of the .plt
2235 section. We want this stub right at the end, up
2236 against the .got section. */
2237 int gotalign
= bfd_section_alignment (dynobj
, htab
->etab
.sgot
);
2238 int pltalign
= bfd_section_alignment (dynobj
, sec
);
2241 if (gotalign
> pltalign
)
2242 (void) bfd_set_section_alignment (dynobj
, sec
, gotalign
);
2243 mask
= ((bfd_size_type
) 1 << gotalign
) - 1;
2244 sec
->size
= (sec
->size
+ sizeof (plt_stub
) + mask
) & ~mask
;
2247 else if (sec
== htab
->etab
.sgot
2248 || sec
== htab
->etab
.sdynbss
2249 || sec
== htab
->etab
.sdynrelro
)
2251 else if (CONST_STRNEQ (bfd_get_section_name (dynobj
, sec
), ".rela"))
2255 /* Remember whether there are any reloc sections other
2257 if (sec
!= htab
->etab
.srelplt
)
2260 /* We use the reloc_count field as a counter if we need
2261 to copy relocs into the output file. */
2262 sec
->reloc_count
= 0;
2267 /* It's not one of our sections, so don't allocate space. */
2273 /* If we don't need this section, strip it from the
2274 output file. This is mostly to handle .rela.bss and
2275 .rela.plt. We must create both sections in
2276 create_dynamic_sections, because they must be created
2277 before the linker maps input sections to output
2278 sections. The linker does that before
2279 adjust_dynamic_symbol is called, and it is that
2280 function which decides whether anything needs to go
2281 into these sections. */
2282 sec
->flags
|= SEC_EXCLUDE
;
2286 if ((sec
->flags
& SEC_HAS_CONTENTS
) == 0)
2289 /* Allocate memory for the section contents. Zero it, because
2290 we may not fill in all the reloc sections. */
2291 sec
->contents
= bfd_zalloc (dynobj
, sec
->size
);
2292 if (sec
->contents
== NULL
)
2296 if (htab
->etab
.dynamic_sections_created
)
2298 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2299 actually has nothing to do with the PLT, it is how we
2300 communicate the LTP value of a load module to the dynamic
2302 #define add_dynamic_entry(TAG, VAL) \
2303 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2305 if (!add_dynamic_entry (DT_PLTGOT
, 0))
2308 /* Add some entries to the .dynamic section. We fill in the
2309 values later, in elf32_hppa_finish_dynamic_sections, but we
2310 must add the entries now so that we get the correct size for
2311 the .dynamic section. The DT_DEBUG entry is filled in by the
2312 dynamic linker and used by the debugger. */
2313 if (bfd_link_executable (info
))
2315 if (!add_dynamic_entry (DT_DEBUG
, 0))
2319 if (htab
->etab
.srelplt
->size
!= 0)
2321 if (!add_dynamic_entry (DT_PLTRELSZ
, 0)
2322 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
2323 || !add_dynamic_entry (DT_JMPREL
, 0))
2329 if (!add_dynamic_entry (DT_RELA
, 0)
2330 || !add_dynamic_entry (DT_RELASZ
, 0)
2331 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
2334 /* If any dynamic relocs apply to a read-only section,
2335 then we need a DT_TEXTREL entry. */
2336 if ((info
->flags
& DF_TEXTREL
) == 0)
2337 elf_link_hash_traverse (&htab
->etab
, readonly_dynrelocs
, info
);
2339 if ((info
->flags
& DF_TEXTREL
) != 0)
2341 if (!add_dynamic_entry (DT_TEXTREL
, 0))
2346 #undef add_dynamic_entry
2351 /* External entry points for sizing and building linker stubs. */
2353 /* Set up various things so that we can make a list of input sections
2354 for each output section included in the link. Returns -1 on error,
2355 0 when no stubs will be needed, and 1 on success. */
2358 elf32_hppa_setup_section_lists (bfd
*output_bfd
, struct bfd_link_info
*info
)
2361 unsigned int bfd_count
;
2362 unsigned int top_id
, top_index
;
2364 asection
**input_list
, **list
;
2366 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2371 /* Count the number of input BFDs and find the top input section id. */
2372 for (input_bfd
= info
->input_bfds
, bfd_count
= 0, top_id
= 0;
2374 input_bfd
= input_bfd
->link
.next
)
2377 for (section
= input_bfd
->sections
;
2379 section
= section
->next
)
2381 if (top_id
< section
->id
)
2382 top_id
= section
->id
;
2385 htab
->bfd_count
= bfd_count
;
2387 amt
= sizeof (struct map_stub
) * (top_id
+ 1);
2388 htab
->stub_group
= bfd_zmalloc (amt
);
2389 if (htab
->stub_group
== NULL
)
2392 /* We can't use output_bfd->section_count here to find the top output
2393 section index as some sections may have been removed, and
2394 strip_excluded_output_sections doesn't renumber the indices. */
2395 for (section
= output_bfd
->sections
, top_index
= 0;
2397 section
= section
->next
)
2399 if (top_index
< section
->index
)
2400 top_index
= section
->index
;
2403 htab
->top_index
= top_index
;
2404 amt
= sizeof (asection
*) * (top_index
+ 1);
2405 input_list
= bfd_malloc (amt
);
2406 htab
->input_list
= input_list
;
2407 if (input_list
== NULL
)
2410 /* For sections we aren't interested in, mark their entries with a
2411 value we can check later. */
2412 list
= input_list
+ top_index
;
2414 *list
= bfd_abs_section_ptr
;
2415 while (list
-- != input_list
);
2417 for (section
= output_bfd
->sections
;
2419 section
= section
->next
)
2421 if ((section
->flags
& SEC_CODE
) != 0)
2422 input_list
[section
->index
] = NULL
;
2428 /* The linker repeatedly calls this function for each input section,
2429 in the order that input sections are linked into output sections.
2430 Build lists of input sections to determine groupings between which
2431 we may insert linker stubs. */
2434 elf32_hppa_next_input_section (struct bfd_link_info
*info
, asection
*isec
)
2436 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2441 if (isec
->output_section
->index
<= htab
->top_index
)
2443 asection
**list
= htab
->input_list
+ isec
->output_section
->index
;
2444 if (*list
!= bfd_abs_section_ptr
)
2446 /* Steal the link_sec pointer for our list. */
2447 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2448 /* This happens to make the list in reverse order,
2449 which is what we want. */
2450 PREV_SEC (isec
) = *list
;
2456 /* See whether we can group stub sections together. Grouping stub
2457 sections may result in fewer stubs. More importantly, we need to
2458 put all .init* and .fini* stubs at the beginning of the .init or
2459 .fini output sections respectively, because glibc splits the
2460 _init and _fini functions into multiple parts. Putting a stub in
2461 the middle of a function is not a good idea. */
2464 group_sections (struct elf32_hppa_link_hash_table
*htab
,
2465 bfd_size_type stub_group_size
,
2466 bfd_boolean stubs_always_before_branch
)
2468 asection
**list
= htab
->input_list
+ htab
->top_index
;
2471 asection
*tail
= *list
;
2472 if (tail
== bfd_abs_section_ptr
)
2474 while (tail
!= NULL
)
2478 bfd_size_type total
;
2479 bfd_boolean big_sec
;
2483 big_sec
= total
>= stub_group_size
;
2485 while ((prev
= PREV_SEC (curr
)) != NULL
2486 && ((total
+= curr
->output_offset
- prev
->output_offset
)
2490 /* OK, the size from the start of CURR to the end is less
2491 than 240000 bytes and thus can be handled by one stub
2492 section. (or the tail section is itself larger than
2493 240000 bytes, in which case we may be toast.)
2494 We should really be keeping track of the total size of
2495 stubs added here, as stubs contribute to the final output
2496 section size. That's a little tricky, and this way will
2497 only break if stubs added total more than 22144 bytes, or
2498 2768 long branch stubs. It seems unlikely for more than
2499 2768 different functions to be called, especially from
2500 code only 240000 bytes long. This limit used to be
2501 250000, but c++ code tends to generate lots of little
2502 functions, and sometimes violated the assumption. */
2505 prev
= PREV_SEC (tail
);
2506 /* Set up this stub group. */
2507 htab
->stub_group
[tail
->id
].link_sec
= curr
;
2509 while (tail
!= curr
&& (tail
= prev
) != NULL
);
2511 /* But wait, there's more! Input sections up to 240000
2512 bytes before the stub section can be handled by it too.
2513 Don't do this if we have a really large section after the
2514 stubs, as adding more stubs increases the chance that
2515 branches may not reach into the stub section. */
2516 if (!stubs_always_before_branch
&& !big_sec
)
2520 && ((total
+= tail
->output_offset
- prev
->output_offset
)
2524 prev
= PREV_SEC (tail
);
2525 htab
->stub_group
[tail
->id
].link_sec
= curr
;
2531 while (list
-- != htab
->input_list
);
2532 free (htab
->input_list
);
2536 /* Read in all local syms for all input bfds, and create hash entries
2537 for export stubs if we are building a multi-subspace shared lib.
2538 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2541 get_local_syms (bfd
*output_bfd
, bfd
*input_bfd
, struct bfd_link_info
*info
)
2543 unsigned int bfd_indx
;
2544 Elf_Internal_Sym
*local_syms
, **all_local_syms
;
2545 int stub_changed
= 0;
2546 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2551 /* We want to read in symbol extension records only once. To do this
2552 we need to read in the local symbols in parallel and save them for
2553 later use; so hold pointers to the local symbols in an array. */
2554 bfd_size_type amt
= sizeof (Elf_Internal_Sym
*) * htab
->bfd_count
;
2555 all_local_syms
= bfd_zmalloc (amt
);
2556 htab
->all_local_syms
= all_local_syms
;
2557 if (all_local_syms
== NULL
)
2560 /* Walk over all the input BFDs, swapping in local symbols.
2561 If we are creating a shared library, create hash entries for the
2565 input_bfd
= input_bfd
->link
.next
, bfd_indx
++)
2567 Elf_Internal_Shdr
*symtab_hdr
;
2569 /* We'll need the symbol table in a second. */
2570 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2571 if (symtab_hdr
->sh_info
== 0)
2574 /* We need an array of the local symbols attached to the input bfd. */
2575 local_syms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
2576 if (local_syms
== NULL
)
2578 local_syms
= bfd_elf_get_elf_syms (input_bfd
, symtab_hdr
,
2579 symtab_hdr
->sh_info
, 0,
2581 /* Cache them for elf_link_input_bfd. */
2582 symtab_hdr
->contents
= (unsigned char *) local_syms
;
2584 if (local_syms
== NULL
)
2587 all_local_syms
[bfd_indx
] = local_syms
;
2589 if (bfd_link_pic (info
) && htab
->multi_subspace
)
2591 struct elf_link_hash_entry
**eh_syms
;
2592 struct elf_link_hash_entry
**eh_symend
;
2593 unsigned int symcount
;
2595 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
2596 - symtab_hdr
->sh_info
);
2597 eh_syms
= (struct elf_link_hash_entry
**) elf_sym_hashes (input_bfd
);
2598 eh_symend
= (struct elf_link_hash_entry
**) (eh_syms
+ symcount
);
2600 /* Look through the global syms for functions; We need to
2601 build export stubs for all globally visible functions. */
2602 for (; eh_syms
< eh_symend
; eh_syms
++)
2604 struct elf32_hppa_link_hash_entry
*hh
;
2606 hh
= hppa_elf_hash_entry (*eh_syms
);
2608 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
2609 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
2610 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
2612 /* At this point in the link, undefined syms have been
2613 resolved, so we need to check that the symbol was
2614 defined in this BFD. */
2615 if ((hh
->eh
.root
.type
== bfd_link_hash_defined
2616 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)
2617 && hh
->eh
.type
== STT_FUNC
2618 && hh
->eh
.root
.u
.def
.section
->output_section
!= NULL
2619 && (hh
->eh
.root
.u
.def
.section
->output_section
->owner
2621 && hh
->eh
.root
.u
.def
.section
->owner
== input_bfd
2622 && hh
->eh
.def_regular
2623 && !hh
->eh
.forced_local
2624 && ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
)
2627 const char *stub_name
;
2628 struct elf32_hppa_stub_hash_entry
*hsh
;
2630 sec
= hh
->eh
.root
.u
.def
.section
;
2631 stub_name
= hh_name (hh
);
2632 hsh
= hppa_stub_hash_lookup (&htab
->bstab
,
2637 hsh
= hppa_add_stub (stub_name
, sec
, htab
);
2641 hsh
->target_value
= hh
->eh
.root
.u
.def
.value
;
2642 hsh
->target_section
= hh
->eh
.root
.u
.def
.section
;
2643 hsh
->stub_type
= hppa_stub_export
;
2649 /* xgettext:c-format */
2650 _bfd_error_handler (_("%B: duplicate export stub %s"),
2651 input_bfd
, stub_name
);
2658 return stub_changed
;
2661 /* Determine and set the size of the stub section for a final link.
2663 The basic idea here is to examine all the relocations looking for
2664 PC-relative calls to a target that is unreachable with a "bl"
2668 elf32_hppa_size_stubs
2669 (bfd
*output_bfd
, bfd
*stub_bfd
, struct bfd_link_info
*info
,
2670 bfd_boolean multi_subspace
, bfd_signed_vma group_size
,
2671 asection
* (*add_stub_section
) (const char *, asection
*),
2672 void (*layout_sections_again
) (void))
2674 bfd_size_type stub_group_size
;
2675 bfd_boolean stubs_always_before_branch
;
2676 bfd_boolean stub_changed
;
2677 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2682 /* Stash our params away. */
2683 htab
->stub_bfd
= stub_bfd
;
2684 htab
->multi_subspace
= multi_subspace
;
2685 htab
->add_stub_section
= add_stub_section
;
2686 htab
->layout_sections_again
= layout_sections_again
;
2687 stubs_always_before_branch
= group_size
< 0;
2689 stub_group_size
= -group_size
;
2691 stub_group_size
= group_size
;
2692 if (stub_group_size
== 1)
2694 /* Default values. */
2695 if (stubs_always_before_branch
)
2697 stub_group_size
= 7680000;
2698 if (htab
->has_17bit_branch
|| htab
->multi_subspace
)
2699 stub_group_size
= 240000;
2700 if (htab
->has_12bit_branch
)
2701 stub_group_size
= 7500;
2705 stub_group_size
= 6971392;
2706 if (htab
->has_17bit_branch
|| htab
->multi_subspace
)
2707 stub_group_size
= 217856;
2708 if (htab
->has_12bit_branch
)
2709 stub_group_size
= 6808;
2713 group_sections (htab
, stub_group_size
, stubs_always_before_branch
);
2715 switch (get_local_syms (output_bfd
, info
->input_bfds
, info
))
2718 if (htab
->all_local_syms
)
2719 goto error_ret_free_local
;
2723 stub_changed
= FALSE
;
2727 stub_changed
= TRUE
;
2734 unsigned int bfd_indx
;
2737 for (input_bfd
= info
->input_bfds
, bfd_indx
= 0;
2739 input_bfd
= input_bfd
->link
.next
, bfd_indx
++)
2741 Elf_Internal_Shdr
*symtab_hdr
;
2743 Elf_Internal_Sym
*local_syms
;
2745 /* We'll need the symbol table in a second. */
2746 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2747 if (symtab_hdr
->sh_info
== 0)
2750 local_syms
= htab
->all_local_syms
[bfd_indx
];
2752 /* Walk over each section attached to the input bfd. */
2753 for (section
= input_bfd
->sections
;
2755 section
= section
->next
)
2757 Elf_Internal_Rela
*internal_relocs
, *irelaend
, *irela
;
2759 /* If there aren't any relocs, then there's nothing more
2761 if ((section
->flags
& SEC_RELOC
) == 0
2762 || section
->reloc_count
== 0)
2765 /* If this section is a link-once section that will be
2766 discarded, then don't create any stubs. */
2767 if (section
->output_section
== NULL
2768 || section
->output_section
->owner
!= output_bfd
)
2771 /* Get the relocs. */
2773 = _bfd_elf_link_read_relocs (input_bfd
, section
, NULL
, NULL
,
2775 if (internal_relocs
== NULL
)
2776 goto error_ret_free_local
;
2778 /* Now examine each relocation. */
2779 irela
= internal_relocs
;
2780 irelaend
= irela
+ section
->reloc_count
;
2781 for (; irela
< irelaend
; irela
++)
2783 unsigned int r_type
, r_indx
;
2784 enum elf32_hppa_stub_type stub_type
;
2785 struct elf32_hppa_stub_hash_entry
*hsh
;
2788 bfd_vma destination
;
2789 struct elf32_hppa_link_hash_entry
*hh
;
2791 const asection
*id_sec
;
2793 r_type
= ELF32_R_TYPE (irela
->r_info
);
2794 r_indx
= ELF32_R_SYM (irela
->r_info
);
2796 if (r_type
>= (unsigned int) R_PARISC_UNIMPLEMENTED
)
2798 bfd_set_error (bfd_error_bad_value
);
2799 error_ret_free_internal
:
2800 if (elf_section_data (section
)->relocs
== NULL
)
2801 free (internal_relocs
);
2802 goto error_ret_free_local
;
2805 /* Only look for stubs on call instructions. */
2806 if (r_type
!= (unsigned int) R_PARISC_PCREL12F
2807 && r_type
!= (unsigned int) R_PARISC_PCREL17F
2808 && r_type
!= (unsigned int) R_PARISC_PCREL22F
)
2811 /* Now determine the call target, its name, value,
2817 if (r_indx
< symtab_hdr
->sh_info
)
2819 /* It's a local symbol. */
2820 Elf_Internal_Sym
*sym
;
2821 Elf_Internal_Shdr
*hdr
;
2824 sym
= local_syms
+ r_indx
;
2825 if (ELF_ST_TYPE (sym
->st_info
) != STT_SECTION
)
2826 sym_value
= sym
->st_value
;
2827 shndx
= sym
->st_shndx
;
2828 if (shndx
< elf_numsections (input_bfd
))
2830 hdr
= elf_elfsections (input_bfd
)[shndx
];
2831 sym_sec
= hdr
->bfd_section
;
2832 destination
= (sym_value
+ irela
->r_addend
2833 + sym_sec
->output_offset
2834 + sym_sec
->output_section
->vma
);
2839 /* It's an external symbol. */
2842 e_indx
= r_indx
- symtab_hdr
->sh_info
;
2843 hh
= hppa_elf_hash_entry (elf_sym_hashes (input_bfd
)[e_indx
]);
2845 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
2846 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
2847 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
2849 if (hh
->eh
.root
.type
== bfd_link_hash_defined
2850 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)
2852 sym_sec
= hh
->eh
.root
.u
.def
.section
;
2853 sym_value
= hh
->eh
.root
.u
.def
.value
;
2854 if (sym_sec
->output_section
!= NULL
)
2855 destination
= (sym_value
+ irela
->r_addend
2856 + sym_sec
->output_offset
2857 + sym_sec
->output_section
->vma
);
2859 else if (hh
->eh
.root
.type
== bfd_link_hash_undefweak
)
2861 if (! bfd_link_pic (info
))
2864 else if (hh
->eh
.root
.type
== bfd_link_hash_undefined
)
2866 if (! (info
->unresolved_syms_in_objects
== RM_IGNORE
2867 && (ELF_ST_VISIBILITY (hh
->eh
.other
)
2869 && hh
->eh
.type
!= STT_PARISC_MILLI
))
2874 bfd_set_error (bfd_error_bad_value
);
2875 goto error_ret_free_internal
;
2879 /* Determine what (if any) linker stub is needed. */
2880 stub_type
= hppa_type_of_stub (section
, irela
, hh
,
2882 if (stub_type
== hppa_stub_none
)
2885 /* Support for grouping stub sections. */
2886 id_sec
= htab
->stub_group
[section
->id
].link_sec
;
2888 /* Get the name of this stub. */
2889 stub_name
= hppa_stub_name (id_sec
, sym_sec
, hh
, irela
);
2891 goto error_ret_free_internal
;
2893 hsh
= hppa_stub_hash_lookup (&htab
->bstab
,
2898 /* The proper stub has already been created. */
2903 hsh
= hppa_add_stub (stub_name
, section
, htab
);
2907 goto error_ret_free_internal
;
2910 hsh
->target_value
= sym_value
;
2911 hsh
->target_section
= sym_sec
;
2912 hsh
->stub_type
= stub_type
;
2913 if (bfd_link_pic (info
))
2915 if (stub_type
== hppa_stub_import
)
2916 hsh
->stub_type
= hppa_stub_import_shared
;
2917 else if (stub_type
== hppa_stub_long_branch
)
2918 hsh
->stub_type
= hppa_stub_long_branch_shared
;
2921 stub_changed
= TRUE
;
2924 /* We're done with the internal relocs, free them. */
2925 if (elf_section_data (section
)->relocs
== NULL
)
2926 free (internal_relocs
);
2933 /* OK, we've added some stubs. Find out the new size of the
2935 for (stub_sec
= htab
->stub_bfd
->sections
;
2937 stub_sec
= stub_sec
->next
)
2938 if ((stub_sec
->flags
& SEC_LINKER_CREATED
) == 0)
2941 bfd_hash_traverse (&htab
->bstab
, hppa_size_one_stub
, htab
);
2943 /* Ask the linker to do its stuff. */
2944 (*htab
->layout_sections_again
) ();
2945 stub_changed
= FALSE
;
2948 free (htab
->all_local_syms
);
2951 error_ret_free_local
:
2952 free (htab
->all_local_syms
);
2956 /* For a final link, this function is called after we have sized the
2957 stubs to provide a value for __gp. */
2960 elf32_hppa_set_gp (bfd
*abfd
, struct bfd_link_info
*info
)
2962 struct bfd_link_hash_entry
*h
;
2963 asection
*sec
= NULL
;
2966 h
= bfd_link_hash_lookup (info
->hash
, "$global$", FALSE
, FALSE
, FALSE
);
2969 && (h
->type
== bfd_link_hash_defined
2970 || h
->type
== bfd_link_hash_defweak
))
2972 gp_val
= h
->u
.def
.value
;
2973 sec
= h
->u
.def
.section
;
2977 asection
*splt
= bfd_get_section_by_name (abfd
, ".plt");
2978 asection
*sgot
= bfd_get_section_by_name (abfd
, ".got");
2980 /* Choose to point our LTP at, in this order, one of .plt, .got,
2981 or .data, if these sections exist. In the case of choosing
2982 .plt try to make the LTP ideal for addressing anywhere in the
2983 .plt or .got with a 14 bit signed offset. Typically, the end
2984 of the .plt is the start of the .got, so choose .plt + 0x2000
2985 if either the .plt or .got is larger than 0x2000. If both
2986 the .plt and .got are smaller than 0x2000, choose the end of
2987 the .plt section. */
2988 sec
= strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") == 0
2993 if (gp_val
> 0x2000 || (sgot
&& sgot
->size
> 0x2000))
3003 if (strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") != 0)
3005 /* We know we don't have a .plt. If .got is large,
3007 if (sec
->size
> 0x2000)
3013 /* No .plt or .got. Who cares what the LTP is? */
3014 sec
= bfd_get_section_by_name (abfd
, ".data");
3020 h
->type
= bfd_link_hash_defined
;
3021 h
->u
.def
.value
= gp_val
;
3023 h
->u
.def
.section
= sec
;
3025 h
->u
.def
.section
= bfd_abs_section_ptr
;
3029 if (bfd_get_flavour (abfd
) == bfd_target_elf_flavour
)
3031 if (sec
!= NULL
&& sec
->output_section
!= NULL
)
3032 gp_val
+= sec
->output_section
->vma
+ sec
->output_offset
;
3034 elf_gp (abfd
) = gp_val
;
3039 /* Build all the stubs associated with the current output file. The
3040 stubs are kept in a hash table attached to the main linker hash
3041 table. We also set up the .plt entries for statically linked PIC
3042 functions here. This function is called via hppaelf_finish in the
3046 elf32_hppa_build_stubs (struct bfd_link_info
*info
)
3049 struct bfd_hash_table
*table
;
3050 struct elf32_hppa_link_hash_table
*htab
;
3052 htab
= hppa_link_hash_table (info
);
3056 for (stub_sec
= htab
->stub_bfd
->sections
;
3058 stub_sec
= stub_sec
->next
)
3059 if ((stub_sec
->flags
& SEC_LINKER_CREATED
) == 0
3060 && stub_sec
->size
!= 0)
3062 /* Allocate memory to hold the linker stubs. */
3063 stub_sec
->contents
= bfd_zalloc (htab
->stub_bfd
, stub_sec
->size
);
3064 if (stub_sec
->contents
== NULL
)
3069 /* Build the stubs as directed by the stub hash table. */
3070 table
= &htab
->bstab
;
3071 bfd_hash_traverse (table
, hppa_build_one_stub
, info
);
3076 /* Return the base vma address which should be subtracted from the real
3077 address when resolving a dtpoff relocation.
3078 This is PT_TLS segment p_vaddr. */
3081 dtpoff_base (struct bfd_link_info
*info
)
3083 /* If tls_sec is NULL, we should have signalled an error already. */
3084 if (elf_hash_table (info
)->tls_sec
== NULL
)
3086 return elf_hash_table (info
)->tls_sec
->vma
;
3089 /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3092 tpoff (struct bfd_link_info
*info
, bfd_vma address
)
3094 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
3096 /* If tls_sec is NULL, we should have signalled an error already. */
3097 if (htab
->tls_sec
== NULL
)
3099 /* hppa TLS ABI is variant I and static TLS block start just after
3100 tcbhead structure which has 2 pointer fields. */
3101 return (address
- htab
->tls_sec
->vma
3102 + align_power ((bfd_vma
) 8, htab
->tls_sec
->alignment_power
));
3105 /* Perform a final link. */
3108 elf32_hppa_final_link (bfd
*abfd
, struct bfd_link_info
*info
)
3112 /* Invoke the regular ELF linker to do all the work. */
3113 if (!bfd_elf_final_link (abfd
, info
))
3116 /* If we're producing a final executable, sort the contents of the
3118 if (bfd_link_relocatable (info
))
3121 /* Do not attempt to sort non-regular files. This is here
3122 especially for configure scripts and kernel builds which run
3123 tests with "ld [...] -o /dev/null". */
3124 if (stat (abfd
->filename
, &buf
) != 0
3125 || !S_ISREG(buf
.st_mode
))
3128 return elf_hppa_sort_unwind (abfd
);
3131 /* Record the lowest address for the data and text segments. */
3134 hppa_record_segment_addr (bfd
*abfd
, asection
*section
, void *data
)
3136 struct elf32_hppa_link_hash_table
*htab
;
3138 htab
= (struct elf32_hppa_link_hash_table
*) data
;
3142 if ((section
->flags
& (SEC_ALLOC
| SEC_LOAD
)) == (SEC_ALLOC
| SEC_LOAD
))
3145 Elf_Internal_Phdr
*p
;
3147 p
= _bfd_elf_find_segment_containing_section (abfd
, section
->output_section
);
3148 BFD_ASSERT (p
!= NULL
);
3151 if ((section
->flags
& SEC_READONLY
) != 0)
3153 if (value
< htab
->text_segment_base
)
3154 htab
->text_segment_base
= value
;
3158 if (value
< htab
->data_segment_base
)
3159 htab
->data_segment_base
= value
;
3164 /* Perform a relocation as part of a final link. */
3166 static bfd_reloc_status_type
3167 final_link_relocate (asection
*input_section
,
3169 const Elf_Internal_Rela
*rela
,
3171 struct elf32_hppa_link_hash_table
*htab
,
3173 struct elf32_hppa_link_hash_entry
*hh
,
3174 struct bfd_link_info
*info
)
3177 unsigned int r_type
= ELF32_R_TYPE (rela
->r_info
);
3178 unsigned int orig_r_type
= r_type
;
3179 reloc_howto_type
*howto
= elf_hppa_howto_table
+ r_type
;
3180 int r_format
= howto
->bitsize
;
3181 enum hppa_reloc_field_selector_type_alt r_field
;
3182 bfd
*input_bfd
= input_section
->owner
;
3183 bfd_vma offset
= rela
->r_offset
;
3184 bfd_vma max_branch_offset
= 0;
3185 bfd_byte
*hit_data
= contents
+ offset
;
3186 bfd_signed_vma addend
= rela
->r_addend
;
3188 struct elf32_hppa_stub_hash_entry
*hsh
= NULL
;
3191 if (r_type
== R_PARISC_NONE
)
3192 return bfd_reloc_ok
;
3194 insn
= bfd_get_32 (input_bfd
, hit_data
);
3196 /* Find out where we are and where we're going. */
3197 location
= (offset
+
3198 input_section
->output_offset
+
3199 input_section
->output_section
->vma
);
3201 /* If we are not building a shared library, convert DLTIND relocs to
3203 if (!bfd_link_pic (info
))
3207 case R_PARISC_DLTIND21L
:
3208 case R_PARISC_TLS_GD21L
:
3209 case R_PARISC_TLS_LDM21L
:
3210 case R_PARISC_TLS_IE21L
:
3211 r_type
= R_PARISC_DPREL21L
;
3214 case R_PARISC_DLTIND14R
:
3215 case R_PARISC_TLS_GD14R
:
3216 case R_PARISC_TLS_LDM14R
:
3217 case R_PARISC_TLS_IE14R
:
3218 r_type
= R_PARISC_DPREL14R
;
3221 case R_PARISC_DLTIND14F
:
3222 r_type
= R_PARISC_DPREL14F
;
3229 case R_PARISC_PCREL12F
:
3230 case R_PARISC_PCREL17F
:
3231 case R_PARISC_PCREL22F
:
3232 /* If this call should go via the plt, find the import stub in
3235 || sym_sec
->output_section
== NULL
3237 && hh
->eh
.plt
.offset
!= (bfd_vma
) -1
3238 && hh
->eh
.dynindx
!= -1
3240 && (bfd_link_pic (info
)
3241 || !hh
->eh
.def_regular
3242 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)))
3244 hsh
= hppa_get_stub_entry (input_section
, sym_sec
,
3248 value
= (hsh
->stub_offset
3249 + hsh
->stub_sec
->output_offset
3250 + hsh
->stub_sec
->output_section
->vma
);
3253 else if (sym_sec
== NULL
&& hh
!= NULL
3254 && hh
->eh
.root
.type
== bfd_link_hash_undefweak
)
3256 /* It's OK if undefined weak. Calls to undefined weak
3257 symbols behave as if the "called" function
3258 immediately returns. We can thus call to a weak
3259 function without first checking whether the function
3265 return bfd_reloc_undefined
;
3269 case R_PARISC_PCREL21L
:
3270 case R_PARISC_PCREL17C
:
3271 case R_PARISC_PCREL17R
:
3272 case R_PARISC_PCREL14R
:
3273 case R_PARISC_PCREL14F
:
3274 case R_PARISC_PCREL32
:
3275 /* Make it a pc relative offset. */
3280 case R_PARISC_DPREL21L
:
3281 case R_PARISC_DPREL14R
:
3282 case R_PARISC_DPREL14F
:
3283 /* Convert instructions that use the linkage table pointer (r19) to
3284 instructions that use the global data pointer (dp). This is the
3285 most efficient way of using PIC code in an incomplete executable,
3286 but the user must follow the standard runtime conventions for
3287 accessing data for this to work. */
3288 if (orig_r_type
!= r_type
)
3290 if (r_type
== R_PARISC_DPREL21L
)
3292 /* GCC sometimes uses a register other than r19 for the
3293 operation, so we must convert any addil instruction
3294 that uses this relocation. */
3295 if ((insn
& 0xfc000000) == ((int) OP_ADDIL
<< 26))
3298 /* We must have a ldil instruction. It's too hard to find
3299 and convert the associated add instruction, so issue an
3302 /* xgettext:c-format */
3303 (_("%B(%A+%#Lx): %s fixup for insn %#x is not supported in a non-shared link"),
3310 else if (r_type
== R_PARISC_DPREL14F
)
3312 /* This must be a format 1 load/store. Change the base
3314 insn
= (insn
& 0xfc1ffff) | (27 << 21);
3318 /* For all the DP relative relocations, we need to examine the symbol's
3319 section. If it has no section or if it's a code section, then
3320 "data pointer relative" makes no sense. In that case we don't
3321 adjust the "value", and for 21 bit addil instructions, we change the
3322 source addend register from %dp to %r0. This situation commonly
3323 arises for undefined weak symbols and when a variable's "constness"
3324 is declared differently from the way the variable is defined. For
3325 instance: "extern int foo" with foo defined as "const int foo". */
3326 if (sym_sec
== NULL
|| (sym_sec
->flags
& SEC_CODE
) != 0)
3328 if ((insn
& ((0x3f << 26) | (0x1f << 21)))
3329 == (((int) OP_ADDIL
<< 26) | (27 << 21)))
3331 insn
&= ~ (0x1f << 21);
3333 /* Now try to make things easy for the dynamic linker. */
3339 case R_PARISC_DLTIND21L
:
3340 case R_PARISC_DLTIND14R
:
3341 case R_PARISC_DLTIND14F
:
3342 case R_PARISC_TLS_GD21L
:
3343 case R_PARISC_TLS_LDM21L
:
3344 case R_PARISC_TLS_IE21L
:
3345 case R_PARISC_TLS_GD14R
:
3346 case R_PARISC_TLS_LDM14R
:
3347 case R_PARISC_TLS_IE14R
:
3348 value
-= elf_gp (input_section
->output_section
->owner
);
3351 case R_PARISC_SEGREL32
:
3352 if ((sym_sec
->flags
& SEC_CODE
) != 0)
3353 value
-= htab
->text_segment_base
;
3355 value
-= htab
->data_segment_base
;
3364 case R_PARISC_DIR32
:
3365 case R_PARISC_DIR14F
:
3366 case R_PARISC_DIR17F
:
3367 case R_PARISC_PCREL17C
:
3368 case R_PARISC_PCREL14F
:
3369 case R_PARISC_PCREL32
:
3370 case R_PARISC_DPREL14F
:
3371 case R_PARISC_PLABEL32
:
3372 case R_PARISC_DLTIND14F
:
3373 case R_PARISC_SEGBASE
:
3374 case R_PARISC_SEGREL32
:
3375 case R_PARISC_TLS_DTPMOD32
:
3376 case R_PARISC_TLS_DTPOFF32
:
3377 case R_PARISC_TLS_TPREL32
:
3381 case R_PARISC_DLTIND21L
:
3382 case R_PARISC_PCREL21L
:
3383 case R_PARISC_PLABEL21L
:
3387 case R_PARISC_DIR21L
:
3388 case R_PARISC_DPREL21L
:
3389 case R_PARISC_TLS_GD21L
:
3390 case R_PARISC_TLS_LDM21L
:
3391 case R_PARISC_TLS_LDO21L
:
3392 case R_PARISC_TLS_IE21L
:
3393 case R_PARISC_TLS_LE21L
:
3397 case R_PARISC_PCREL17R
:
3398 case R_PARISC_PCREL14R
:
3399 case R_PARISC_PLABEL14R
:
3400 case R_PARISC_DLTIND14R
:
3404 case R_PARISC_DIR17R
:
3405 case R_PARISC_DIR14R
:
3406 case R_PARISC_DPREL14R
:
3407 case R_PARISC_TLS_GD14R
:
3408 case R_PARISC_TLS_LDM14R
:
3409 case R_PARISC_TLS_LDO14R
:
3410 case R_PARISC_TLS_IE14R
:
3411 case R_PARISC_TLS_LE14R
:
3415 case R_PARISC_PCREL12F
:
3416 case R_PARISC_PCREL17F
:
3417 case R_PARISC_PCREL22F
:
3420 if (r_type
== (unsigned int) R_PARISC_PCREL17F
)
3422 max_branch_offset
= (1 << (17-1)) << 2;
3424 else if (r_type
== (unsigned int) R_PARISC_PCREL12F
)
3426 max_branch_offset
= (1 << (12-1)) << 2;
3430 max_branch_offset
= (1 << (22-1)) << 2;
3433 /* sym_sec is NULL on undefined weak syms or when shared on
3434 undefined syms. We've already checked for a stub for the
3435 shared undefined case. */
3436 if (sym_sec
== NULL
)
3439 /* If the branch is out of reach, then redirect the
3440 call to the local stub for this function. */
3441 if (value
+ addend
+ max_branch_offset
>= 2*max_branch_offset
)
3443 hsh
= hppa_get_stub_entry (input_section
, sym_sec
,
3446 return bfd_reloc_undefined
;
3448 /* Munge up the value and addend so that we call the stub
3449 rather than the procedure directly. */
3450 value
= (hsh
->stub_offset
3451 + hsh
->stub_sec
->output_offset
3452 + hsh
->stub_sec
->output_section
->vma
3458 /* Something we don't know how to handle. */
3460 return bfd_reloc_notsupported
;
3463 /* Make sure we can reach the stub. */
3464 if (max_branch_offset
!= 0
3465 && value
+ addend
+ max_branch_offset
>= 2*max_branch_offset
)
3468 /* xgettext:c-format */
3469 (_("%B(%A+%#Lx): cannot reach %s, recompile with -ffunction-sections"),
3473 hsh
->bh_root
.string
);
3474 bfd_set_error (bfd_error_bad_value
);
3475 return bfd_reloc_notsupported
;
3478 val
= hppa_field_adjust (value
, addend
, r_field
);
3482 case R_PARISC_PCREL12F
:
3483 case R_PARISC_PCREL17C
:
3484 case R_PARISC_PCREL17F
:
3485 case R_PARISC_PCREL17R
:
3486 case R_PARISC_PCREL22F
:
3487 case R_PARISC_DIR17F
:
3488 case R_PARISC_DIR17R
:
3489 /* This is a branch. Divide the offset by four.
3490 Note that we need to decide whether it's a branch or
3491 otherwise by inspecting the reloc. Inspecting insn won't
3492 work as insn might be from a .word directive. */
3500 insn
= hppa_rebuild_insn (insn
, val
, r_format
);
3502 /* Update the instruction word. */
3503 bfd_put_32 (input_bfd
, (bfd_vma
) insn
, hit_data
);
3504 return bfd_reloc_ok
;
3507 /* Relocate an HPPA ELF section. */
3510 elf32_hppa_relocate_section (bfd
*output_bfd
,
3511 struct bfd_link_info
*info
,
3513 asection
*input_section
,
3515 Elf_Internal_Rela
*relocs
,
3516 Elf_Internal_Sym
*local_syms
,
3517 asection
**local_sections
)
3519 bfd_vma
*local_got_offsets
;
3520 struct elf32_hppa_link_hash_table
*htab
;
3521 Elf_Internal_Shdr
*symtab_hdr
;
3522 Elf_Internal_Rela
*rela
;
3523 Elf_Internal_Rela
*relend
;
3525 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3527 htab
= hppa_link_hash_table (info
);
3531 local_got_offsets
= elf_local_got_offsets (input_bfd
);
3534 relend
= relocs
+ input_section
->reloc_count
;
3535 for (; rela
< relend
; rela
++)
3537 unsigned int r_type
;
3538 reloc_howto_type
*howto
;
3539 unsigned int r_symndx
;
3540 struct elf32_hppa_link_hash_entry
*hh
;
3541 Elf_Internal_Sym
*sym
;
3544 bfd_reloc_status_type rstatus
;
3545 const char *sym_name
;
3547 bfd_boolean warned_undef
;
3549 r_type
= ELF32_R_TYPE (rela
->r_info
);
3550 if (r_type
>= (unsigned int) R_PARISC_UNIMPLEMENTED
)
3552 bfd_set_error (bfd_error_bad_value
);
3555 if (r_type
== (unsigned int) R_PARISC_GNU_VTENTRY
3556 || r_type
== (unsigned int) R_PARISC_GNU_VTINHERIT
)
3559 r_symndx
= ELF32_R_SYM (rela
->r_info
);
3563 warned_undef
= FALSE
;
3564 if (r_symndx
< symtab_hdr
->sh_info
)
3566 /* This is a local symbol, h defaults to NULL. */
3567 sym
= local_syms
+ r_symndx
;
3568 sym_sec
= local_sections
[r_symndx
];
3569 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sym_sec
, rela
);
3573 struct elf_link_hash_entry
*eh
;
3574 bfd_boolean unresolved_reloc
, ignored
;
3575 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
3577 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rela
,
3578 r_symndx
, symtab_hdr
, sym_hashes
,
3579 eh
, sym_sec
, relocation
,
3580 unresolved_reloc
, warned_undef
,
3583 if (!bfd_link_relocatable (info
)
3585 && eh
->root
.type
!= bfd_link_hash_defined
3586 && eh
->root
.type
!= bfd_link_hash_defweak
3587 && eh
->root
.type
!= bfd_link_hash_undefweak
)
3589 if (info
->unresolved_syms_in_objects
== RM_IGNORE
3590 && ELF_ST_VISIBILITY (eh
->other
) == STV_DEFAULT
3591 && eh
->type
== STT_PARISC_MILLI
)
3593 (*info
->callbacks
->undefined_symbol
)
3594 (info
, eh_name (eh
), input_bfd
,
3595 input_section
, rela
->r_offset
, FALSE
);
3596 warned_undef
= TRUE
;
3599 hh
= hppa_elf_hash_entry (eh
);
3602 if (sym_sec
!= NULL
&& discarded_section (sym_sec
))
3603 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
3605 elf_hppa_howto_table
+ r_type
, 0,
3608 if (bfd_link_relocatable (info
))
3611 /* Do any required modifications to the relocation value, and
3612 determine what types of dynamic info we need to output, if
3617 case R_PARISC_DLTIND14F
:
3618 case R_PARISC_DLTIND14R
:
3619 case R_PARISC_DLTIND21L
:
3622 bfd_boolean do_got
= FALSE
;
3623 bfd_boolean reloc
= bfd_link_pic (info
);
3625 /* Relocation is to the entry for this symbol in the
3626 global offset table. */
3631 off
= hh
->eh
.got
.offset
;
3632 dyn
= htab
->etab
.dynamic_sections_created
;
3633 reloc
= (!UNDEFWEAK_NO_DYNAMIC_RELOC (info
, &hh
->eh
)
3635 || (hh
->eh
.dynindx
!= -1
3636 && !SYMBOL_REFERENCES_LOCAL (info
, &hh
->eh
))));
3638 || !WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
3639 bfd_link_pic (info
),
3642 /* If we aren't going to call finish_dynamic_symbol,
3643 then we need to handle initialisation of the .got
3644 entry and create needed relocs here. Since the
3645 offset must always be a multiple of 4, we use the
3646 least significant bit to record whether we have
3647 initialised it already. */
3652 hh
->eh
.got
.offset
|= 1;
3659 /* Local symbol case. */
3660 if (local_got_offsets
== NULL
)
3663 off
= local_got_offsets
[r_symndx
];
3665 /* The offset must always be a multiple of 4. We use
3666 the least significant bit to record whether we have
3667 already generated the necessary reloc. */
3672 local_got_offsets
[r_symndx
] |= 1;
3681 /* Output a dynamic relocation for this GOT entry.
3682 In this case it is relative to the base of the
3683 object because the symbol index is zero. */
3684 Elf_Internal_Rela outrel
;
3686 asection
*sec
= htab
->etab
.srelgot
;
3688 outrel
.r_offset
= (off
3689 + htab
->etab
.sgot
->output_offset
3690 + htab
->etab
.sgot
->output_section
->vma
);
3691 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_DIR32
);
3692 outrel
.r_addend
= relocation
;
3693 loc
= sec
->contents
;
3694 loc
+= sec
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3695 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3698 bfd_put_32 (output_bfd
, relocation
,
3699 htab
->etab
.sgot
->contents
+ off
);
3702 if (off
>= (bfd_vma
) -2)
3705 /* Add the base of the GOT to the relocation value. */
3707 + htab
->etab
.sgot
->output_offset
3708 + htab
->etab
.sgot
->output_section
->vma
);
3712 case R_PARISC_SEGREL32
:
3713 /* If this is the first SEGREL relocation, then initialize
3714 the segment base values. */
3715 if (htab
->text_segment_base
== (bfd_vma
) -1)
3716 bfd_map_over_sections (output_bfd
, hppa_record_segment_addr
, htab
);
3719 case R_PARISC_PLABEL14R
:
3720 case R_PARISC_PLABEL21L
:
3721 case R_PARISC_PLABEL32
:
3722 if (htab
->etab
.dynamic_sections_created
)
3725 bfd_boolean do_plt
= 0;
3726 /* If we have a global symbol with a PLT slot, then
3727 redirect this relocation to it. */
3730 off
= hh
->eh
.plt
.offset
;
3731 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3732 bfd_link_pic (info
),
3735 /* In a non-shared link, adjust_dynamic_symbols
3736 isn't called for symbols forced local. We
3737 need to write out the plt entry here. */
3742 hh
->eh
.plt
.offset
|= 1;
3749 bfd_vma
*local_plt_offsets
;
3751 if (local_got_offsets
== NULL
)
3754 local_plt_offsets
= local_got_offsets
+ symtab_hdr
->sh_info
;
3755 off
= local_plt_offsets
[r_symndx
];
3757 /* As for the local .got entry case, we use the last
3758 bit to record whether we've already initialised
3759 this local .plt entry. */
3764 local_plt_offsets
[r_symndx
] |= 1;
3771 if (bfd_link_pic (info
))
3773 /* Output a dynamic IPLT relocation for this
3775 Elf_Internal_Rela outrel
;
3777 asection
*s
= htab
->etab
.srelplt
;
3779 outrel
.r_offset
= (off
3780 + htab
->etab
.splt
->output_offset
3781 + htab
->etab
.splt
->output_section
->vma
);
3782 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_IPLT
);
3783 outrel
.r_addend
= relocation
;
3785 loc
+= s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3786 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3790 bfd_put_32 (output_bfd
,
3792 htab
->etab
.splt
->contents
+ off
);
3793 bfd_put_32 (output_bfd
,
3794 elf_gp (htab
->etab
.splt
->output_section
->owner
),
3795 htab
->etab
.splt
->contents
+ off
+ 4);
3799 if (off
>= (bfd_vma
) -2)
3802 /* PLABELs contain function pointers. Relocation is to
3803 the entry for the function in the .plt. The magic +2
3804 offset signals to $$dyncall that the function pointer
3805 is in the .plt and thus has a gp pointer too.
3806 Exception: Undefined PLABELs should have a value of
3809 || (hh
->eh
.root
.type
!= bfd_link_hash_undefweak
3810 && hh
->eh
.root
.type
!= bfd_link_hash_undefined
))
3813 + htab
->etab
.splt
->output_offset
3814 + htab
->etab
.splt
->output_section
->vma
3821 case R_PARISC_DIR17F
:
3822 case R_PARISC_DIR17R
:
3823 case R_PARISC_DIR14F
:
3824 case R_PARISC_DIR14R
:
3825 case R_PARISC_DIR21L
:
3826 case R_PARISC_DPREL14F
:
3827 case R_PARISC_DPREL14R
:
3828 case R_PARISC_DPREL21L
:
3829 case R_PARISC_DIR32
:
3830 if ((input_section
->flags
& SEC_ALLOC
) == 0)
3833 /* The reloc types handled here and this conditional
3834 expression must match the code in ..check_relocs and
3835 allocate_dynrelocs. ie. We need exactly the same condition
3836 as in ..check_relocs, with some extra conditions (dynindx
3837 test in this case) to cater for relocs removed by
3838 allocate_dynrelocs. */
3839 if ((bfd_link_pic (info
)
3841 && ((hh
->eh
.root
.type
== bfd_link_hash_undefined
3842 && ELF_ST_VISIBILITY (hh
->eh
.other
) != STV_DEFAULT
)
3843 || UNDEFWEAK_NO_DYNAMIC_RELOC (info
, &hh
->eh
)))
3844 && (IS_ABSOLUTE_RELOC (r_type
)
3845 || !SYMBOL_CALLS_LOCAL (info
, &hh
->eh
)))
3846 || (ELIMINATE_COPY_RELOCS
3847 && !bfd_link_pic (info
)
3849 && hh
->eh
.dynindx
!= -1
3850 && !hh
->eh
.non_got_ref
3851 && !hh
->eh
.def_regular
))
3853 Elf_Internal_Rela outrel
;
3858 /* When generating a shared object, these relocations
3859 are copied into the output file to be resolved at run
3862 outrel
.r_addend
= rela
->r_addend
;
3864 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
3866 skip
= (outrel
.r_offset
== (bfd_vma
) -1
3867 || outrel
.r_offset
== (bfd_vma
) -2);
3868 outrel
.r_offset
+= (input_section
->output_offset
3869 + input_section
->output_section
->vma
);
3873 memset (&outrel
, 0, sizeof (outrel
));
3876 && hh
->eh
.dynindx
!= -1
3878 || !IS_ABSOLUTE_RELOC (r_type
)
3879 || !bfd_link_pic (info
)
3880 || !SYMBOLIC_BIND (info
, &hh
->eh
)
3881 || !hh
->eh
.def_regular
))
3883 outrel
.r_info
= ELF32_R_INFO (hh
->eh
.dynindx
, r_type
);
3885 else /* It's a local symbol, or one marked to become local. */
3889 /* Add the absolute offset of the symbol. */
3890 outrel
.r_addend
+= relocation
;
3892 /* Global plabels need to be processed by the
3893 dynamic linker so that functions have at most one
3894 fptr. For this reason, we need to differentiate
3895 between global and local plabels, which we do by
3896 providing the function symbol for a global plabel
3897 reloc, and no symbol for local plabels. */
3900 && sym_sec
->output_section
!= NULL
3901 && ! bfd_is_abs_section (sym_sec
))
3905 osec
= sym_sec
->output_section
;
3906 indx
= elf_section_data (osec
)->dynindx
;
3909 osec
= htab
->etab
.text_index_section
;
3910 indx
= elf_section_data (osec
)->dynindx
;
3912 BFD_ASSERT (indx
!= 0);
3914 /* We are turning this relocation into one
3915 against a section symbol, so subtract out the
3916 output section's address but not the offset
3917 of the input section in the output section. */
3918 outrel
.r_addend
-= osec
->vma
;
3921 outrel
.r_info
= ELF32_R_INFO (indx
, r_type
);
3923 sreloc
= elf_section_data (input_section
)->sreloc
;
3927 loc
= sreloc
->contents
;
3928 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3929 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3933 case R_PARISC_TLS_LDM21L
:
3934 case R_PARISC_TLS_LDM14R
:
3938 off
= htab
->tls_ldm_got
.offset
;
3943 Elf_Internal_Rela outrel
;
3946 outrel
.r_offset
= (off
3947 + htab
->etab
.sgot
->output_section
->vma
3948 + htab
->etab
.sgot
->output_offset
);
3949 outrel
.r_addend
= 0;
3950 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32
);
3951 loc
= htab
->etab
.srelgot
->contents
;
3952 loc
+= htab
->etab
.srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3954 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3955 htab
->tls_ldm_got
.offset
|= 1;
3958 /* Add the base of the GOT to the relocation value. */
3960 + htab
->etab
.sgot
->output_offset
3961 + htab
->etab
.sgot
->output_section
->vma
);
3966 case R_PARISC_TLS_LDO21L
:
3967 case R_PARISC_TLS_LDO14R
:
3968 relocation
-= dtpoff_base (info
);
3971 case R_PARISC_TLS_GD21L
:
3972 case R_PARISC_TLS_GD14R
:
3973 case R_PARISC_TLS_IE21L
:
3974 case R_PARISC_TLS_IE14R
:
3984 dyn
= htab
->etab
.dynamic_sections_created
;
3986 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
3987 bfd_link_pic (info
),
3989 && (!bfd_link_pic (info
)
3990 || !SYMBOL_REFERENCES_LOCAL (info
, &hh
->eh
)))
3992 indx
= hh
->eh
.dynindx
;
3994 off
= hh
->eh
.got
.offset
;
3995 tls_type
= hh
->tls_type
;
3999 off
= local_got_offsets
[r_symndx
];
4000 tls_type
= hppa_elf_local_got_tls_type (input_bfd
)[r_symndx
];
4003 if (tls_type
== GOT_UNKNOWN
)
4010 bfd_boolean need_relocs
= FALSE
;
4011 Elf_Internal_Rela outrel
;
4012 bfd_byte
*loc
= NULL
;
4015 /* The GOT entries have not been initialized yet. Do it
4016 now, and emit any relocations. If both an IE GOT and a
4017 GD GOT are necessary, we emit the GD first. */
4019 if ((bfd_link_pic (info
) || indx
!= 0)
4021 || ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
4022 || hh
->eh
.root
.type
!= bfd_link_hash_undefweak
))
4025 loc
= htab
->etab
.srelgot
->contents
;
4026 /* FIXME (CAO): Should this be reloc_count++ ? */
4027 loc
+= htab
->etab
.srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
4030 if (tls_type
& GOT_TLS_GD
)
4034 outrel
.r_offset
= (cur_off
4035 + htab
->etab
.sgot
->output_section
->vma
4036 + htab
->etab
.sgot
->output_offset
);
4037 outrel
.r_info
= ELF32_R_INFO (indx
,R_PARISC_TLS_DTPMOD32
);
4038 outrel
.r_addend
= 0;
4039 bfd_put_32 (output_bfd
, 0, htab
->etab
.sgot
->contents
+ cur_off
);
4040 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4041 htab
->etab
.srelgot
->reloc_count
++;
4042 loc
+= sizeof (Elf32_External_Rela
);
4045 bfd_put_32 (output_bfd
, relocation
- dtpoff_base (info
),
4046 htab
->etab
.sgot
->contents
+ cur_off
+ 4);
4049 bfd_put_32 (output_bfd
, 0,
4050 htab
->etab
.sgot
->contents
+ cur_off
+ 4);
4051 outrel
.r_info
= ELF32_R_INFO (indx
, R_PARISC_TLS_DTPOFF32
);
4052 outrel
.r_offset
+= 4;
4053 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,loc
);
4054 htab
->etab
.srelgot
->reloc_count
++;
4055 loc
+= sizeof (Elf32_External_Rela
);
4060 /* If we are not emitting relocations for a
4061 general dynamic reference, then we must be in a
4062 static link or an executable link with the
4063 symbol binding locally. Mark it as belonging
4064 to module 1, the executable. */
4065 bfd_put_32 (output_bfd
, 1,
4066 htab
->etab
.sgot
->contents
+ cur_off
);
4067 bfd_put_32 (output_bfd
, relocation
- dtpoff_base (info
),
4068 htab
->etab
.sgot
->contents
+ cur_off
+ 4);
4075 if (tls_type
& GOT_TLS_IE
)
4079 outrel
.r_offset
= (cur_off
4080 + htab
->etab
.sgot
->output_section
->vma
4081 + htab
->etab
.sgot
->output_offset
);
4082 outrel
.r_info
= ELF32_R_INFO (indx
, R_PARISC_TLS_TPREL32
);
4085 outrel
.r_addend
= relocation
- dtpoff_base (info
);
4087 outrel
.r_addend
= 0;
4089 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4090 htab
->etab
.srelgot
->reloc_count
++;
4091 loc
+= sizeof (Elf32_External_Rela
);
4094 bfd_put_32 (output_bfd
, tpoff (info
, relocation
),
4095 htab
->etab
.sgot
->contents
+ cur_off
);
4101 hh
->eh
.got
.offset
|= 1;
4103 local_got_offsets
[r_symndx
] |= 1;
4106 if ((tls_type
& GOT_TLS_GD
)
4107 && r_type
!= R_PARISC_TLS_GD21L
4108 && r_type
!= R_PARISC_TLS_GD14R
)
4109 off
+= 2 * GOT_ENTRY_SIZE
;
4111 /* Add the base of the GOT to the relocation value. */
4113 + htab
->etab
.sgot
->output_offset
4114 + htab
->etab
.sgot
->output_section
->vma
);
4119 case R_PARISC_TLS_LE21L
:
4120 case R_PARISC_TLS_LE14R
:
4122 relocation
= tpoff (info
, relocation
);
4131 rstatus
= final_link_relocate (input_section
, contents
, rela
, relocation
,
4132 htab
, sym_sec
, hh
, info
);
4134 if (rstatus
== bfd_reloc_ok
)
4138 sym_name
= hh_name (hh
);
4141 sym_name
= bfd_elf_string_from_elf_section (input_bfd
,
4142 symtab_hdr
->sh_link
,
4144 if (sym_name
== NULL
)
4146 if (*sym_name
== '\0')
4147 sym_name
= bfd_section_name (input_bfd
, sym_sec
);
4150 howto
= elf_hppa_howto_table
+ r_type
;
4152 if (rstatus
== bfd_reloc_undefined
|| rstatus
== bfd_reloc_notsupported
)
4154 if (rstatus
== bfd_reloc_notsupported
|| !warned_undef
)
4157 /* xgettext:c-format */
4158 (_("%B(%A+%#Lx): cannot handle %s for %s"),
4164 bfd_set_error (bfd_error_bad_value
);
4169 (*info
->callbacks
->reloc_overflow
)
4170 (info
, (hh
? &hh
->eh
.root
: NULL
), sym_name
, howto
->name
,
4171 (bfd_vma
) 0, input_bfd
, input_section
, rela
->r_offset
);
4177 /* Finish up dynamic symbol handling. We set the contents of various
4178 dynamic sections here. */
4181 elf32_hppa_finish_dynamic_symbol (bfd
*output_bfd
,
4182 struct bfd_link_info
*info
,
4183 struct elf_link_hash_entry
*eh
,
4184 Elf_Internal_Sym
*sym
)
4186 struct elf32_hppa_link_hash_table
*htab
;
4187 Elf_Internal_Rela rela
;
4190 htab
= hppa_link_hash_table (info
);
4194 if (eh
->plt
.offset
!= (bfd_vma
) -1)
4198 if (eh
->plt
.offset
& 1)
4201 /* This symbol has an entry in the procedure linkage table. Set
4204 The format of a plt entry is
4209 if (eh
->root
.type
== bfd_link_hash_defined
4210 || eh
->root
.type
== bfd_link_hash_defweak
)
4212 value
= eh
->root
.u
.def
.value
;
4213 if (eh
->root
.u
.def
.section
->output_section
!= NULL
)
4214 value
+= (eh
->root
.u
.def
.section
->output_offset
4215 + eh
->root
.u
.def
.section
->output_section
->vma
);
4218 /* Create a dynamic IPLT relocation for this entry. */
4219 rela
.r_offset
= (eh
->plt
.offset
4220 + htab
->etab
.splt
->output_offset
4221 + htab
->etab
.splt
->output_section
->vma
);
4222 if (eh
->dynindx
!= -1)
4224 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_IPLT
);
4229 /* This symbol has been marked to become local, and is
4230 used by a plabel so must be kept in the .plt. */
4231 rela
.r_info
= ELF32_R_INFO (0, R_PARISC_IPLT
);
4232 rela
.r_addend
= value
;
4235 loc
= htab
->etab
.srelplt
->contents
;
4236 loc
+= htab
->etab
.srelplt
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4237 bfd_elf32_swap_reloca_out (htab
->etab
.splt
->output_section
->owner
, &rela
, loc
);
4239 if (!eh
->def_regular
)
4241 /* Mark the symbol as undefined, rather than as defined in
4242 the .plt section. Leave the value alone. */
4243 sym
->st_shndx
= SHN_UNDEF
;
4247 if (eh
->got
.offset
!= (bfd_vma
) -1
4248 && (hppa_elf_hash_entry (eh
)->tls_type
& GOT_TLS_GD
) == 0
4249 && (hppa_elf_hash_entry (eh
)->tls_type
& GOT_TLS_IE
) == 0
4250 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info
, eh
))
4252 bfd_boolean is_dyn
= (eh
->dynindx
!= -1
4253 && !SYMBOL_REFERENCES_LOCAL (info
, eh
));
4255 if (is_dyn
|| bfd_link_pic (info
))
4257 /* This symbol has an entry in the global offset table. Set
4260 rela
.r_offset
= ((eh
->got
.offset
&~ (bfd_vma
) 1)
4261 + htab
->etab
.sgot
->output_offset
4262 + htab
->etab
.sgot
->output_section
->vma
);
4264 /* If this is a -Bsymbolic link and the symbol is defined
4265 locally or was forced to be local because of a version
4266 file, we just want to emit a RELATIVE reloc. The entry
4267 in the global offset table will already have been
4268 initialized in the relocate_section function. */
4271 rela
.r_info
= ELF32_R_INFO (0, R_PARISC_DIR32
);
4272 rela
.r_addend
= (eh
->root
.u
.def
.value
4273 + eh
->root
.u
.def
.section
->output_offset
4274 + eh
->root
.u
.def
.section
->output_section
->vma
);
4278 if ((eh
->got
.offset
& 1) != 0)
4281 bfd_put_32 (output_bfd
, 0,
4282 htab
->etab
.sgot
->contents
+ (eh
->got
.offset
& ~1));
4283 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_DIR32
);
4287 loc
= htab
->etab
.srelgot
->contents
;
4288 loc
+= (htab
->etab
.srelgot
->reloc_count
++
4289 * sizeof (Elf32_External_Rela
));
4290 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4298 /* This symbol needs a copy reloc. Set it up. */
4300 if (! (eh
->dynindx
!= -1
4301 && (eh
->root
.type
== bfd_link_hash_defined
4302 || eh
->root
.type
== bfd_link_hash_defweak
)))
4305 rela
.r_offset
= (eh
->root
.u
.def
.value
4306 + eh
->root
.u
.def
.section
->output_offset
4307 + eh
->root
.u
.def
.section
->output_section
->vma
);
4309 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_COPY
);
4310 if (eh
->root
.u
.def
.section
== htab
->etab
.sdynrelro
)
4311 sec
= htab
->etab
.sreldynrelro
;
4313 sec
= htab
->etab
.srelbss
;
4314 loc
= sec
->contents
+ sec
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4315 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4318 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4319 if (eh
== htab
->etab
.hdynamic
|| eh
== htab
->etab
.hgot
)
4321 sym
->st_shndx
= SHN_ABS
;
4327 /* Used to decide how to sort relocs in an optimal manner for the
4328 dynamic linker, before writing them out. */
4330 static enum elf_reloc_type_class
4331 elf32_hppa_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
4332 const asection
*rel_sec ATTRIBUTE_UNUSED
,
4333 const Elf_Internal_Rela
*rela
)
4335 /* Handle TLS relocs first; we don't want them to be marked
4336 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
4338 switch ((int) ELF32_R_TYPE (rela
->r_info
))
4340 case R_PARISC_TLS_DTPMOD32
:
4341 case R_PARISC_TLS_DTPOFF32
:
4342 case R_PARISC_TLS_TPREL32
:
4343 return reloc_class_normal
;
4346 if (ELF32_R_SYM (rela
->r_info
) == STN_UNDEF
)
4347 return reloc_class_relative
;
4349 switch ((int) ELF32_R_TYPE (rela
->r_info
))
4352 return reloc_class_plt
;
4354 return reloc_class_copy
;
4356 return reloc_class_normal
;
4360 /* Finish up the dynamic sections. */
4363 elf32_hppa_finish_dynamic_sections (bfd
*output_bfd
,
4364 struct bfd_link_info
*info
)
4367 struct elf32_hppa_link_hash_table
*htab
;
4371 htab
= hppa_link_hash_table (info
);
4375 dynobj
= htab
->etab
.dynobj
;
4377 sgot
= htab
->etab
.sgot
;
4378 /* A broken linker script might have discarded the dynamic sections.
4379 Catch this here so that we do not seg-fault later on. */
4380 if (sgot
!= NULL
&& bfd_is_abs_section (sgot
->output_section
))
4383 sdyn
= bfd_get_linker_section (dynobj
, ".dynamic");
4385 if (htab
->etab
.dynamic_sections_created
)
4387 Elf32_External_Dyn
*dyncon
, *dynconend
;
4392 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
4393 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
4394 for (; dyncon
< dynconend
; dyncon
++)
4396 Elf_Internal_Dyn dyn
;
4399 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4407 /* Use PLTGOT to set the GOT register. */
4408 dyn
.d_un
.d_ptr
= elf_gp (output_bfd
);
4412 s
= htab
->etab
.srelplt
;
4413 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
4417 s
= htab
->etab
.srelplt
;
4418 dyn
.d_un
.d_val
= s
->size
;
4422 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
4426 if (sgot
!= NULL
&& sgot
->size
!= 0)
4428 /* Fill in the first entry in the global offset table.
4429 We use it to point to our dynamic section, if we have one. */
4430 bfd_put_32 (output_bfd
,
4431 sdyn
? sdyn
->output_section
->vma
+ sdyn
->output_offset
: 0,
4434 /* The second entry is reserved for use by the dynamic linker. */
4435 memset (sgot
->contents
+ GOT_ENTRY_SIZE
, 0, GOT_ENTRY_SIZE
);
4437 /* Set .got entry size. */
4438 elf_section_data (sgot
->output_section
)
4439 ->this_hdr
.sh_entsize
= GOT_ENTRY_SIZE
;
4442 if (htab
->etab
.splt
!= NULL
&& htab
->etab
.splt
->size
!= 0)
4444 /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4445 plt stubs and as such the section does not hold a table of fixed-size
4447 elf_section_data (htab
->etab
.splt
->output_section
)->this_hdr
.sh_entsize
= 0;
4449 if (htab
->need_plt_stub
)
4451 /* Set up the .plt stub. */
4452 memcpy (htab
->etab
.splt
->contents
4453 + htab
->etab
.splt
->size
- sizeof (plt_stub
),
4454 plt_stub
, sizeof (plt_stub
));
4456 if ((htab
->etab
.splt
->output_offset
4457 + htab
->etab
.splt
->output_section
->vma
4458 + htab
->etab
.splt
->size
)
4459 != (sgot
->output_offset
4460 + sgot
->output_section
->vma
))
4463 (_(".got section not immediately after .plt section"));
4472 /* Called when writing out an object file to decide the type of a
4475 elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym
*elf_sym
, int type
)
4477 if (ELF_ST_TYPE (elf_sym
->st_info
) == STT_PARISC_MILLI
)
4478 return STT_PARISC_MILLI
;
4483 /* Misc BFD support code. */
4484 #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4485 #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4486 #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4487 #define elf_info_to_howto elf_hppa_info_to_howto
4488 #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4490 /* Stuff for the BFD linker. */
4491 #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4492 #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4493 #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4494 #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4495 #define elf_backend_check_relocs elf32_hppa_check_relocs
4496 #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
4497 #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4498 #define elf_backend_fake_sections elf_hppa_fake_sections
4499 #define elf_backend_relocate_section elf32_hppa_relocate_section
4500 #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4501 #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4502 #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4503 #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4504 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4505 #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4506 #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4507 #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4508 #define elf_backend_object_p elf32_hppa_object_p
4509 #define elf_backend_final_write_processing elf_hppa_final_write_processing
4510 #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4511 #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4512 #define elf_backend_action_discarded elf_hppa_action_discarded
4514 #define elf_backend_can_gc_sections 1
4515 #define elf_backend_can_refcount 1
4516 #define elf_backend_plt_alignment 2
4517 #define elf_backend_want_got_plt 0
4518 #define elf_backend_plt_readonly 0
4519 #define elf_backend_want_plt_sym 0
4520 #define elf_backend_got_header_size 8
4521 #define elf_backend_want_dynrelro 1
4522 #define elf_backend_rela_normal 1
4523 #define elf_backend_dtrel_excludes_plt 1
4524 #define elf_backend_no_page_alias 1
4526 #define TARGET_BIG_SYM hppa_elf32_vec
4527 #define TARGET_BIG_NAME "elf32-hppa"
4528 #define ELF_ARCH bfd_arch_hppa
4529 #define ELF_TARGET_ID HPPA32_ELF_DATA
4530 #define ELF_MACHINE_CODE EM_PARISC
4531 #define ELF_MAXPAGESIZE 0x1000
4532 #define ELF_OSABI ELFOSABI_HPUX
4533 #define elf32_bed elf32_hppa_hpux_bed
4535 #include "elf32-target.h"
4537 #undef TARGET_BIG_SYM
4538 #define TARGET_BIG_SYM hppa_elf32_linux_vec
4539 #undef TARGET_BIG_NAME
4540 #define TARGET_BIG_NAME "elf32-hppa-linux"
4542 #define ELF_OSABI ELFOSABI_GNU
4544 #define elf32_bed elf32_hppa_linux_bed
4546 #include "elf32-target.h"
4548 #undef TARGET_BIG_SYM
4549 #define TARGET_BIG_SYM hppa_elf32_nbsd_vec
4550 #undef TARGET_BIG_NAME
4551 #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4553 #define ELF_OSABI ELFOSABI_NETBSD
4555 #define elf32_bed elf32_hppa_netbsd_bed
4557 #include "elf32-target.h"