1 /* BFD back-end for HP PA-RISC ELF files.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001,
3 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
4 Free Software Foundation, Inc.
7 Center for Software Science
8 Department of Computer Science
10 Largely rewritten by Alan Modra <alan@linuxcare.com.au>
11 Naming cleanup by Carlos O'Donell <carlos@systemhalted.org>
12 TLS support written by Randolph Chung <tausq@debian.org>
14 This file is part of BFD, the Binary File Descriptor library.
16 This program is free software; you can redistribute it and/or modify
17 it under the terms of the GNU General Public License as published by
18 the Free Software Foundation; either version 3 of the License, or
19 (at your option) any later version.
21 This program is distributed in the hope that it will be useful,
22 but WITHOUT ANY WARRANTY; without even the implied warranty of
23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 GNU General Public License for more details.
26 You should have received a copy of the GNU General Public License
27 along with this program; if not, write to the Free Software
28 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
29 MA 02110-1301, USA. */
37 #include "elf32-hppa.h"
39 #include "elf32-hppa.h"
42 /* In order to gain some understanding of code in this file without
43 knowing all the intricate details of the linker, note the
46 Functions named elf32_hppa_* are called by external routines, other
47 functions are only called locally. elf32_hppa_* functions appear
48 in this file more or less in the order in which they are called
49 from external routines. eg. elf32_hppa_check_relocs is called
50 early in the link process, elf32_hppa_finish_dynamic_sections is
51 one of the last functions. */
53 /* We use two hash tables to hold information for linking PA ELF objects.
55 The first is the elf32_hppa_link_hash_table which is derived
56 from the standard ELF linker hash table. We use this as a place to
57 attach other hash tables and static information.
59 The second is the stub hash table which is derived from the
60 base BFD hash table. The stub hash table holds the information
61 necessary to build the linker stubs during a link.
63 There are a number of different stubs generated by the linker.
71 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
72 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
74 Import stub to call shared library routine from normal object file
75 (single sub-space version)
76 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
77 : ldw RR'lt_ptr+ltoff(%r1),%r21
79 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
81 Import stub to call shared library routine from shared library
82 (single sub-space version)
83 : addil LR'ltoff,%r19 ; get procedure entry point
84 : ldw RR'ltoff(%r1),%r21
86 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
88 Import stub to call shared library routine from normal object file
89 (multiple sub-space support)
90 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
91 : ldw RR'lt_ptr+ltoff(%r1),%r21
92 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
95 : be 0(%sr0,%r21) ; branch to target
96 : stw %rp,-24(%sp) ; save rp
98 Import stub to call shared library routine from shared library
99 (multiple sub-space support)
100 : addil LR'ltoff,%r19 ; get procedure entry point
101 : ldw RR'ltoff(%r1),%r21
102 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
105 : be 0(%sr0,%r21) ; branch to target
106 : stw %rp,-24(%sp) ; save rp
108 Export stub to return from shared lib routine (multiple sub-space support)
109 One of these is created for each exported procedure in a shared
110 library (and stored in the shared lib). Shared lib routines are
111 called via the first instruction in the export stub so that we can
112 do an inter-space return. Not required for single sub-space.
113 : bl,n X,%rp ; trap the return
115 : ldw -24(%sp),%rp ; restore the original rp
118 : be,n 0(%sr0,%rp) ; inter-space return. */
121 /* Variable names follow a coding style.
122 Please follow this (Apps Hungarian) style:
124 Structure/Variable Prefix
125 elf_link_hash_table "etab"
126 elf_link_hash_entry "eh"
128 elf32_hppa_link_hash_table "htab"
129 elf32_hppa_link_hash_entry "hh"
131 bfd_hash_table "btab"
134 bfd_hash_table containing stubs "bstab"
135 elf32_hppa_stub_hash_entry "hsh"
137 elf32_hppa_dyn_reloc_entry "hdh"
139 Always remember to use GNU Coding Style. */
141 #define PLT_ENTRY_SIZE 8
142 #define GOT_ENTRY_SIZE 4
143 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
145 static const bfd_byte plt_stub
[] =
147 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
148 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
149 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
150 #define PLT_STUB_ENTRY (3*4)
151 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
152 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
153 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
154 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
157 /* Section name for stubs is the associated section name plus this
159 #define STUB_SUFFIX ".stub"
161 /* We don't need to copy certain PC- or GP-relative dynamic relocs
162 into a shared object's dynamic section. All the relocs of the
163 limited class we are interested in, are absolute. */
164 #ifndef RELATIVE_DYNRELOCS
165 #define RELATIVE_DYNRELOCS 0
166 #define IS_ABSOLUTE_RELOC(r_type) 1
169 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
170 copying dynamic variables from a shared lib into an app's dynbss
171 section, and instead use a dynamic relocation to point into the
173 #define ELIMINATE_COPY_RELOCS 1
175 enum elf32_hppa_stub_type
177 hppa_stub_long_branch
,
178 hppa_stub_long_branch_shared
,
180 hppa_stub_import_shared
,
185 struct elf32_hppa_stub_hash_entry
187 /* Base hash table entry structure. */
188 struct bfd_hash_entry bh_root
;
190 /* The stub section. */
193 /* Offset within stub_sec of the beginning of this stub. */
196 /* Given the symbol's value and its section we can determine its final
197 value when building the stubs (so the stub knows where to jump. */
198 bfd_vma target_value
;
199 asection
*target_section
;
201 enum elf32_hppa_stub_type stub_type
;
203 /* The symbol table entry, if any, that this was derived from. */
204 struct elf32_hppa_link_hash_entry
*hh
;
206 /* Where this stub is being called from, or, in the case of combined
207 stub sections, the first input section in the group. */
211 struct elf32_hppa_link_hash_entry
213 struct elf_link_hash_entry eh
;
215 /* A pointer to the most recently used stub hash entry against this
217 struct elf32_hppa_stub_hash_entry
*hsh_cache
;
219 /* Used to count relocations for delayed sizing of relocation
221 struct elf32_hppa_dyn_reloc_entry
223 /* Next relocation in the chain. */
224 struct elf32_hppa_dyn_reloc_entry
*hdh_next
;
226 /* The input section of the reloc. */
229 /* Number of relocs copied in this section. */
232 #if RELATIVE_DYNRELOCS
233 /* Number of relative relocs copied for the input section. */
234 bfd_size_type relative_count
;
240 GOT_UNKNOWN
= 0, GOT_NORMAL
= 1, GOT_TLS_GD
= 2, GOT_TLS_LDM
= 4, GOT_TLS_IE
= 8
243 /* Set if this symbol is used by a plabel reloc. */
244 unsigned int plabel
:1;
247 struct elf32_hppa_link_hash_table
249 /* The main hash table. */
250 struct elf_link_hash_table etab
;
252 /* The stub hash table. */
253 struct bfd_hash_table bstab
;
255 /* Linker stub bfd. */
258 /* Linker call-backs. */
259 asection
* (*add_stub_section
) (const char *, asection
*);
260 void (*layout_sections_again
) (void);
262 /* Array to keep track of which stub sections have been created, and
263 information on stub grouping. */
266 /* This is the section to which stubs in the group will be
269 /* The stub section. */
273 /* Assorted information used by elf32_hppa_size_stubs. */
274 unsigned int bfd_count
;
276 asection
**input_list
;
277 Elf_Internal_Sym
**all_local_syms
;
279 /* Short-cuts to get to dynamic linker sections. */
287 /* Used during a final link to store the base of the text and data
288 segments so that we can perform SEGREL relocations. */
289 bfd_vma text_segment_base
;
290 bfd_vma data_segment_base
;
292 /* Whether we support multiple sub-spaces for shared libs. */
293 unsigned int multi_subspace
:1;
295 /* Flags set when various size branches are detected. Used to
296 select suitable defaults for the stub group size. */
297 unsigned int has_12bit_branch
:1;
298 unsigned int has_17bit_branch
:1;
299 unsigned int has_22bit_branch
:1;
301 /* Set if we need a .plt stub to support lazy dynamic linking. */
302 unsigned int need_plt_stub
:1;
304 /* Small local sym cache. */
305 struct sym_cache sym_cache
;
307 /* Data for LDM relocations. */
310 bfd_signed_vma refcount
;
315 /* Various hash macros and functions. */
316 #define hppa_link_hash_table(p) \
317 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
318 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
320 #define hppa_elf_hash_entry(ent) \
321 ((struct elf32_hppa_link_hash_entry *)(ent))
323 #define hppa_stub_hash_entry(ent) \
324 ((struct elf32_hppa_stub_hash_entry *)(ent))
326 #define hppa_stub_hash_lookup(table, string, create, copy) \
327 ((struct elf32_hppa_stub_hash_entry *) \
328 bfd_hash_lookup ((table), (string), (create), (copy)))
330 #define hppa_elf_local_got_tls_type(abfd) \
331 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
333 #define hh_name(hh) \
334 (hh ? hh->eh.root.root.string : "<undef>")
336 #define eh_name(eh) \
337 (eh ? eh->root.root.string : "<undef>")
339 /* Assorted hash table functions. */
341 /* Initialize an entry in the stub hash table. */
343 static struct bfd_hash_entry
*
344 stub_hash_newfunc (struct bfd_hash_entry
*entry
,
345 struct bfd_hash_table
*table
,
348 /* Allocate the structure if it has not already been allocated by a
352 entry
= bfd_hash_allocate (table
,
353 sizeof (struct elf32_hppa_stub_hash_entry
));
358 /* Call the allocation method of the superclass. */
359 entry
= bfd_hash_newfunc (entry
, table
, string
);
362 struct elf32_hppa_stub_hash_entry
*hsh
;
364 /* Initialize the local fields. */
365 hsh
= hppa_stub_hash_entry (entry
);
366 hsh
->stub_sec
= NULL
;
367 hsh
->stub_offset
= 0;
368 hsh
->target_value
= 0;
369 hsh
->target_section
= NULL
;
370 hsh
->stub_type
= hppa_stub_long_branch
;
378 /* Initialize an entry in the link hash table. */
380 static struct bfd_hash_entry
*
381 hppa_link_hash_newfunc (struct bfd_hash_entry
*entry
,
382 struct bfd_hash_table
*table
,
385 /* Allocate the structure if it has not already been allocated by a
389 entry
= bfd_hash_allocate (table
,
390 sizeof (struct elf32_hppa_link_hash_entry
));
395 /* Call the allocation method of the superclass. */
396 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
399 struct elf32_hppa_link_hash_entry
*hh
;
401 /* Initialize the local fields. */
402 hh
= hppa_elf_hash_entry (entry
);
403 hh
->hsh_cache
= NULL
;
404 hh
->dyn_relocs
= NULL
;
406 hh
->tls_type
= GOT_UNKNOWN
;
412 /* Create the derived linker hash table. The PA ELF port uses the derived
413 hash table to keep information specific to the PA ELF linker (without
414 using static variables). */
416 static struct bfd_link_hash_table
*
417 elf32_hppa_link_hash_table_create (bfd
*abfd
)
419 struct elf32_hppa_link_hash_table
*htab
;
420 bfd_size_type amt
= sizeof (*htab
);
422 htab
= bfd_malloc (amt
);
426 if (!_bfd_elf_link_hash_table_init (&htab
->etab
, abfd
, hppa_link_hash_newfunc
,
427 sizeof (struct elf32_hppa_link_hash_entry
),
434 /* Init the stub hash table too. */
435 if (!bfd_hash_table_init (&htab
->bstab
, stub_hash_newfunc
,
436 sizeof (struct elf32_hppa_stub_hash_entry
)))
439 htab
->stub_bfd
= NULL
;
440 htab
->add_stub_section
= NULL
;
441 htab
->layout_sections_again
= NULL
;
442 htab
->stub_group
= NULL
;
444 htab
->srelgot
= NULL
;
446 htab
->srelplt
= NULL
;
447 htab
->sdynbss
= NULL
;
448 htab
->srelbss
= NULL
;
449 htab
->text_segment_base
= (bfd_vma
) -1;
450 htab
->data_segment_base
= (bfd_vma
) -1;
451 htab
->multi_subspace
= 0;
452 htab
->has_12bit_branch
= 0;
453 htab
->has_17bit_branch
= 0;
454 htab
->has_22bit_branch
= 0;
455 htab
->need_plt_stub
= 0;
456 htab
->sym_cache
.abfd
= NULL
;
457 htab
->tls_ldm_got
.refcount
= 0;
459 return &htab
->etab
.root
;
462 /* Free the derived linker hash table. */
465 elf32_hppa_link_hash_table_free (struct bfd_link_hash_table
*btab
)
467 struct elf32_hppa_link_hash_table
*htab
468 = (struct elf32_hppa_link_hash_table
*) btab
;
470 bfd_hash_table_free (&htab
->bstab
);
471 _bfd_generic_link_hash_table_free (btab
);
474 /* Build a name for an entry in the stub hash table. */
477 hppa_stub_name (const asection
*input_section
,
478 const asection
*sym_sec
,
479 const struct elf32_hppa_link_hash_entry
*hh
,
480 const Elf_Internal_Rela
*rela
)
487 len
= 8 + 1 + strlen (hh_name (hh
)) + 1 + 8 + 1;
488 stub_name
= bfd_malloc (len
);
489 if (stub_name
!= NULL
)
490 sprintf (stub_name
, "%08x_%s+%x",
491 input_section
->id
& 0xffffffff,
493 (int) rela
->r_addend
& 0xffffffff);
497 len
= 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
498 stub_name
= bfd_malloc (len
);
499 if (stub_name
!= NULL
)
500 sprintf (stub_name
, "%08x_%x:%x+%x",
501 input_section
->id
& 0xffffffff,
502 sym_sec
->id
& 0xffffffff,
503 (int) ELF32_R_SYM (rela
->r_info
) & 0xffffffff,
504 (int) rela
->r_addend
& 0xffffffff);
509 /* Look up an entry in the stub hash. Stub entries are cached because
510 creating the stub name takes a bit of time. */
512 static struct elf32_hppa_stub_hash_entry
*
513 hppa_get_stub_entry (const asection
*input_section
,
514 const asection
*sym_sec
,
515 struct elf32_hppa_link_hash_entry
*hh
,
516 const Elf_Internal_Rela
*rela
,
517 struct elf32_hppa_link_hash_table
*htab
)
519 struct elf32_hppa_stub_hash_entry
*hsh_entry
;
520 const asection
*id_sec
;
522 /* If this input section is part of a group of sections sharing one
523 stub section, then use the id of the first section in the group.
524 Stub names need to include a section id, as there may well be
525 more than one stub used to reach say, printf, and we need to
526 distinguish between them. */
527 id_sec
= htab
->stub_group
[input_section
->id
].link_sec
;
529 if (hh
!= NULL
&& hh
->hsh_cache
!= NULL
530 && hh
->hsh_cache
->hh
== hh
531 && hh
->hsh_cache
->id_sec
== id_sec
)
533 hsh_entry
= hh
->hsh_cache
;
539 stub_name
= hppa_stub_name (id_sec
, sym_sec
, hh
, rela
);
540 if (stub_name
== NULL
)
543 hsh_entry
= hppa_stub_hash_lookup (&htab
->bstab
,
544 stub_name
, FALSE
, FALSE
);
546 hh
->hsh_cache
= hsh_entry
;
554 /* Add a new stub entry to the stub hash. Not all fields of the new
555 stub entry are initialised. */
557 static struct elf32_hppa_stub_hash_entry
*
558 hppa_add_stub (const char *stub_name
,
560 struct elf32_hppa_link_hash_table
*htab
)
564 struct elf32_hppa_stub_hash_entry
*hsh
;
566 link_sec
= htab
->stub_group
[section
->id
].link_sec
;
567 stub_sec
= htab
->stub_group
[section
->id
].stub_sec
;
568 if (stub_sec
== NULL
)
570 stub_sec
= htab
->stub_group
[link_sec
->id
].stub_sec
;
571 if (stub_sec
== NULL
)
577 namelen
= strlen (link_sec
->name
);
578 len
= namelen
+ sizeof (STUB_SUFFIX
);
579 s_name
= bfd_alloc (htab
->stub_bfd
, len
);
583 memcpy (s_name
, link_sec
->name
, namelen
);
584 memcpy (s_name
+ namelen
, STUB_SUFFIX
, sizeof (STUB_SUFFIX
));
585 stub_sec
= (*htab
->add_stub_section
) (s_name
, link_sec
);
586 if (stub_sec
== NULL
)
588 htab
->stub_group
[link_sec
->id
].stub_sec
= stub_sec
;
590 htab
->stub_group
[section
->id
].stub_sec
= stub_sec
;
593 /* Enter this entry into the linker stub hash table. */
594 hsh
= hppa_stub_hash_lookup (&htab
->bstab
, stub_name
,
598 (*_bfd_error_handler
) (_("%B: cannot create stub entry %s"),
604 hsh
->stub_sec
= stub_sec
;
605 hsh
->stub_offset
= 0;
606 hsh
->id_sec
= link_sec
;
610 /* Determine the type of stub needed, if any, for a call. */
612 static enum elf32_hppa_stub_type
613 hppa_type_of_stub (asection
*input_sec
,
614 const Elf_Internal_Rela
*rela
,
615 struct elf32_hppa_link_hash_entry
*hh
,
617 struct bfd_link_info
*info
)
620 bfd_vma branch_offset
;
621 bfd_vma max_branch_offset
;
625 && hh
->eh
.plt
.offset
!= (bfd_vma
) -1
626 && hh
->eh
.dynindx
!= -1
629 || !hh
->eh
.def_regular
630 || hh
->eh
.root
.type
== bfd_link_hash_defweak
))
632 /* We need an import stub. Decide between hppa_stub_import
633 and hppa_stub_import_shared later. */
634 return hppa_stub_import
;
637 /* Determine where the call point is. */
638 location
= (input_sec
->output_offset
639 + input_sec
->output_section
->vma
642 branch_offset
= destination
- location
- 8;
643 r_type
= ELF32_R_TYPE (rela
->r_info
);
645 /* Determine if a long branch stub is needed. parisc branch offsets
646 are relative to the second instruction past the branch, ie. +8
647 bytes on from the branch instruction location. The offset is
648 signed and counts in units of 4 bytes. */
649 if (r_type
== (unsigned int) R_PARISC_PCREL17F
)
650 max_branch_offset
= (1 << (17 - 1)) << 2;
652 else if (r_type
== (unsigned int) R_PARISC_PCREL12F
)
653 max_branch_offset
= (1 << (12 - 1)) << 2;
655 else /* R_PARISC_PCREL22F. */
656 max_branch_offset
= (1 << (22 - 1)) << 2;
658 if (branch_offset
+ max_branch_offset
>= 2*max_branch_offset
)
659 return hppa_stub_long_branch
;
661 return hppa_stub_none
;
664 /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
665 IN_ARG contains the link info pointer. */
667 #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
668 #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
670 #define BL_R1 0xe8200000 /* b,l .+8,%r1 */
671 #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
672 #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
674 #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
675 #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
676 #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
677 #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
679 #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
680 #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
682 #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
683 #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
684 #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
685 #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
687 #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
688 #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
689 #define NOP 0x08000240 /* nop */
690 #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
691 #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
692 #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
699 #define LDW_R1_DLT LDW_R1_R19
701 #define LDW_R1_DLT LDW_R1_DP
705 hppa_build_one_stub (struct bfd_hash_entry
*bh
, void *in_arg
)
707 struct elf32_hppa_stub_hash_entry
*hsh
;
708 struct bfd_link_info
*info
;
709 struct elf32_hppa_link_hash_table
*htab
;
719 /* Massage our args to the form they really have. */
720 hsh
= hppa_stub_hash_entry (bh
);
721 info
= (struct bfd_link_info
*)in_arg
;
723 htab
= hppa_link_hash_table (info
);
727 stub_sec
= hsh
->stub_sec
;
729 /* Make a note of the offset within the stubs for this entry. */
730 hsh
->stub_offset
= stub_sec
->size
;
731 loc
= stub_sec
->contents
+ hsh
->stub_offset
;
733 stub_bfd
= stub_sec
->owner
;
735 switch (hsh
->stub_type
)
737 case hppa_stub_long_branch
:
738 /* Create the long branch. A long branch is formed with "ldil"
739 loading the upper bits of the target address into a register,
740 then branching with "be" which adds in the lower bits.
741 The "be" has its delay slot nullified. */
742 sym_value
= (hsh
->target_value
743 + hsh
->target_section
->output_offset
744 + hsh
->target_section
->output_section
->vma
);
746 val
= hppa_field_adjust (sym_value
, 0, e_lrsel
);
747 insn
= hppa_rebuild_insn ((int) LDIL_R1
, val
, 21);
748 bfd_put_32 (stub_bfd
, insn
, loc
);
750 val
= hppa_field_adjust (sym_value
, 0, e_rrsel
) >> 2;
751 insn
= hppa_rebuild_insn ((int) BE_SR4_R1
, val
, 17);
752 bfd_put_32 (stub_bfd
, insn
, loc
+ 4);
757 case hppa_stub_long_branch_shared
:
758 /* Branches are relative. This is where we are going to. */
759 sym_value
= (hsh
->target_value
760 + hsh
->target_section
->output_offset
761 + hsh
->target_section
->output_section
->vma
);
763 /* And this is where we are coming from, more or less. */
764 sym_value
-= (hsh
->stub_offset
765 + stub_sec
->output_offset
766 + stub_sec
->output_section
->vma
);
768 bfd_put_32 (stub_bfd
, (bfd_vma
) BL_R1
, loc
);
769 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) -8, e_lrsel
);
770 insn
= hppa_rebuild_insn ((int) ADDIL_R1
, val
, 21);
771 bfd_put_32 (stub_bfd
, insn
, loc
+ 4);
773 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) -8, e_rrsel
) >> 2;
774 insn
= hppa_rebuild_insn ((int) BE_SR4_R1
, val
, 17);
775 bfd_put_32 (stub_bfd
, insn
, loc
+ 8);
779 case hppa_stub_import
:
780 case hppa_stub_import_shared
:
781 off
= hsh
->hh
->eh
.plt
.offset
;
782 if (off
>= (bfd_vma
) -2)
785 off
&= ~ (bfd_vma
) 1;
787 + htab
->splt
->output_offset
788 + htab
->splt
->output_section
->vma
789 - elf_gp (htab
->splt
->output_section
->owner
));
793 if (hsh
->stub_type
== hppa_stub_import_shared
)
796 val
= hppa_field_adjust (sym_value
, 0, e_lrsel
),
797 insn
= hppa_rebuild_insn ((int) insn
, val
, 21);
798 bfd_put_32 (stub_bfd
, insn
, loc
);
800 /* It is critical to use lrsel/rrsel here because we are using
801 two different offsets (+0 and +4) from sym_value. If we use
802 lsel/rsel then with unfortunate sym_values we will round
803 sym_value+4 up to the next 2k block leading to a mis-match
804 between the lsel and rsel value. */
805 val
= hppa_field_adjust (sym_value
, 0, e_rrsel
);
806 insn
= hppa_rebuild_insn ((int) LDW_R1_R21
, val
, 14);
807 bfd_put_32 (stub_bfd
, insn
, loc
+ 4);
809 if (htab
->multi_subspace
)
811 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) 4, e_rrsel
);
812 insn
= hppa_rebuild_insn ((int) LDW_R1_DLT
, val
, 14);
813 bfd_put_32 (stub_bfd
, insn
, loc
+ 8);
815 bfd_put_32 (stub_bfd
, (bfd_vma
) LDSID_R21_R1
, loc
+ 12);
816 bfd_put_32 (stub_bfd
, (bfd_vma
) MTSP_R1
, loc
+ 16);
817 bfd_put_32 (stub_bfd
, (bfd_vma
) BE_SR0_R21
, loc
+ 20);
818 bfd_put_32 (stub_bfd
, (bfd_vma
) STW_RP
, loc
+ 24);
824 bfd_put_32 (stub_bfd
, (bfd_vma
) BV_R0_R21
, loc
+ 8);
825 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) 4, e_rrsel
);
826 insn
= hppa_rebuild_insn ((int) LDW_R1_DLT
, val
, 14);
827 bfd_put_32 (stub_bfd
, insn
, loc
+ 12);
834 case hppa_stub_export
:
835 /* Branches are relative. This is where we are going to. */
836 sym_value
= (hsh
->target_value
837 + hsh
->target_section
->output_offset
838 + hsh
->target_section
->output_section
->vma
);
840 /* And this is where we are coming from. */
841 sym_value
-= (hsh
->stub_offset
842 + stub_sec
->output_offset
843 + stub_sec
->output_section
->vma
);
845 if (sym_value
- 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
846 && (!htab
->has_22bit_branch
847 || sym_value
- 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
849 (*_bfd_error_handler
)
850 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
851 hsh
->target_section
->owner
,
853 (long) hsh
->stub_offset
,
854 hsh
->bh_root
.string
);
855 bfd_set_error (bfd_error_bad_value
);
859 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) -8, e_fsel
) >> 2;
860 if (!htab
->has_22bit_branch
)
861 insn
= hppa_rebuild_insn ((int) BL_RP
, val
, 17);
863 insn
= hppa_rebuild_insn ((int) BL22_RP
, val
, 22);
864 bfd_put_32 (stub_bfd
, insn
, loc
);
866 bfd_put_32 (stub_bfd
, (bfd_vma
) NOP
, loc
+ 4);
867 bfd_put_32 (stub_bfd
, (bfd_vma
) LDW_RP
, loc
+ 8);
868 bfd_put_32 (stub_bfd
, (bfd_vma
) LDSID_RP_R1
, loc
+ 12);
869 bfd_put_32 (stub_bfd
, (bfd_vma
) MTSP_R1
, loc
+ 16);
870 bfd_put_32 (stub_bfd
, (bfd_vma
) BE_SR0_RP
, loc
+ 20);
872 /* Point the function symbol at the stub. */
873 hsh
->hh
->eh
.root
.u
.def
.section
= stub_sec
;
874 hsh
->hh
->eh
.root
.u
.def
.value
= stub_sec
->size
;
884 stub_sec
->size
+= size
;
909 /* As above, but don't actually build the stub. Just bump offset so
910 we know stub section sizes. */
913 hppa_size_one_stub (struct bfd_hash_entry
*bh
, void *in_arg
)
915 struct elf32_hppa_stub_hash_entry
*hsh
;
916 struct elf32_hppa_link_hash_table
*htab
;
919 /* Massage our args to the form they really have. */
920 hsh
= hppa_stub_hash_entry (bh
);
923 if (hsh
->stub_type
== hppa_stub_long_branch
)
925 else if (hsh
->stub_type
== hppa_stub_long_branch_shared
)
927 else if (hsh
->stub_type
== hppa_stub_export
)
929 else /* hppa_stub_import or hppa_stub_import_shared. */
931 if (htab
->multi_subspace
)
937 hsh
->stub_sec
->size
+= size
;
941 /* Return nonzero if ABFD represents an HPPA ELF32 file.
942 Additionally we set the default architecture and machine. */
945 elf32_hppa_object_p (bfd
*abfd
)
947 Elf_Internal_Ehdr
* i_ehdrp
;
950 i_ehdrp
= elf_elfheader (abfd
);
951 if (strcmp (bfd_get_target (abfd
), "elf32-hppa-linux") == 0)
953 /* GCC on hppa-linux produces binaries with OSABI=GNU,
954 but the kernel produces corefiles with OSABI=SysV. */
955 if (i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_GNU
&&
956 i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_NONE
) /* aka SYSV */
959 else if (strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") == 0)
961 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
962 but the kernel produces corefiles with OSABI=SysV. */
963 if (i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_NETBSD
&&
964 i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_NONE
) /* aka SYSV */
969 if (i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_HPUX
)
973 flags
= i_ehdrp
->e_flags
;
974 switch (flags
& (EF_PARISC_ARCH
| EF_PARISC_WIDE
))
977 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 10);
979 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 11);
981 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 20);
982 case EFA_PARISC_2_0
| EF_PARISC_WIDE
:
983 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 25);
988 /* Create the .plt and .got sections, and set up our hash table
989 short-cuts to various dynamic sections. */
992 elf32_hppa_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
994 struct elf32_hppa_link_hash_table
*htab
;
995 struct elf_link_hash_entry
*eh
;
997 /* Don't try to create the .plt and .got twice. */
998 htab
= hppa_link_hash_table (info
);
1001 if (htab
->splt
!= NULL
)
1004 /* Call the generic code to do most of the work. */
1005 if (! _bfd_elf_create_dynamic_sections (abfd
, info
))
1008 htab
->splt
= bfd_get_linker_section (abfd
, ".plt");
1009 htab
->srelplt
= bfd_get_linker_section (abfd
, ".rela.plt");
1011 htab
->sgot
= bfd_get_linker_section (abfd
, ".got");
1012 htab
->srelgot
= bfd_get_linker_section (abfd
, ".rela.got");
1014 htab
->sdynbss
= bfd_get_linker_section (abfd
, ".dynbss");
1015 htab
->srelbss
= bfd_get_linker_section (abfd
, ".rela.bss");
1017 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
1018 application, because __canonicalize_funcptr_for_compare needs it. */
1019 eh
= elf_hash_table (info
)->hgot
;
1020 eh
->forced_local
= 0;
1021 eh
->other
= STV_DEFAULT
;
1022 return bfd_elf_link_record_dynamic_symbol (info
, eh
);
1025 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1028 elf32_hppa_copy_indirect_symbol (struct bfd_link_info
*info
,
1029 struct elf_link_hash_entry
*eh_dir
,
1030 struct elf_link_hash_entry
*eh_ind
)
1032 struct elf32_hppa_link_hash_entry
*hh_dir
, *hh_ind
;
1034 hh_dir
= hppa_elf_hash_entry (eh_dir
);
1035 hh_ind
= hppa_elf_hash_entry (eh_ind
);
1037 if (hh_ind
->dyn_relocs
!= NULL
)
1039 if (hh_dir
->dyn_relocs
!= NULL
)
1041 struct elf32_hppa_dyn_reloc_entry
**hdh_pp
;
1042 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1044 /* Add reloc counts against the indirect sym to the direct sym
1045 list. Merge any entries against the same section. */
1046 for (hdh_pp
= &hh_ind
->dyn_relocs
; (hdh_p
= *hdh_pp
) != NULL
; )
1048 struct elf32_hppa_dyn_reloc_entry
*hdh_q
;
1050 for (hdh_q
= hh_dir
->dyn_relocs
;
1052 hdh_q
= hdh_q
->hdh_next
)
1053 if (hdh_q
->sec
== hdh_p
->sec
)
1055 #if RELATIVE_DYNRELOCS
1056 hdh_q
->relative_count
+= hdh_p
->relative_count
;
1058 hdh_q
->count
+= hdh_p
->count
;
1059 *hdh_pp
= hdh_p
->hdh_next
;
1063 hdh_pp
= &hdh_p
->hdh_next
;
1065 *hdh_pp
= hh_dir
->dyn_relocs
;
1068 hh_dir
->dyn_relocs
= hh_ind
->dyn_relocs
;
1069 hh_ind
->dyn_relocs
= NULL
;
1072 if (ELIMINATE_COPY_RELOCS
1073 && eh_ind
->root
.type
!= bfd_link_hash_indirect
1074 && eh_dir
->dynamic_adjusted
)
1076 /* If called to transfer flags for a weakdef during processing
1077 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1078 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
1079 eh_dir
->ref_dynamic
|= eh_ind
->ref_dynamic
;
1080 eh_dir
->ref_regular
|= eh_ind
->ref_regular
;
1081 eh_dir
->ref_regular_nonweak
|= eh_ind
->ref_regular_nonweak
;
1082 eh_dir
->needs_plt
|= eh_ind
->needs_plt
;
1086 if (eh_ind
->root
.type
== bfd_link_hash_indirect
1087 && eh_dir
->got
.refcount
<= 0)
1089 hh_dir
->tls_type
= hh_ind
->tls_type
;
1090 hh_ind
->tls_type
= GOT_UNKNOWN
;
1093 _bfd_elf_link_hash_copy_indirect (info
, eh_dir
, eh_ind
);
1098 elf32_hppa_optimized_tls_reloc (struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
1099 int r_type
, int is_local ATTRIBUTE_UNUSED
)
1101 /* For now we don't support linker optimizations. */
1105 /* Return a pointer to the local GOT, PLT and TLS reference counts
1106 for ABFD. Returns NULL if the storage allocation fails. */
1108 static bfd_signed_vma
*
1109 hppa32_elf_local_refcounts (bfd
*abfd
)
1111 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1112 bfd_signed_vma
*local_refcounts
;
1114 local_refcounts
= elf_local_got_refcounts (abfd
);
1115 if (local_refcounts
== NULL
)
1119 /* Allocate space for local GOT and PLT reference
1120 counts. Done this way to save polluting elf_obj_tdata
1121 with another target specific pointer. */
1122 size
= symtab_hdr
->sh_info
;
1123 size
*= 2 * sizeof (bfd_signed_vma
);
1124 /* Add in space to store the local GOT TLS types. */
1125 size
+= symtab_hdr
->sh_info
;
1126 local_refcounts
= bfd_zalloc (abfd
, size
);
1127 if (local_refcounts
== NULL
)
1129 elf_local_got_refcounts (abfd
) = local_refcounts
;
1130 memset (hppa_elf_local_got_tls_type (abfd
), GOT_UNKNOWN
,
1131 symtab_hdr
->sh_info
);
1133 return local_refcounts
;
1137 /* Look through the relocs for a section during the first phase, and
1138 calculate needed space in the global offset table, procedure linkage
1139 table, and dynamic reloc sections. At this point we haven't
1140 necessarily read all the input files. */
1143 elf32_hppa_check_relocs (bfd
*abfd
,
1144 struct bfd_link_info
*info
,
1146 const Elf_Internal_Rela
*relocs
)
1148 Elf_Internal_Shdr
*symtab_hdr
;
1149 struct elf_link_hash_entry
**eh_syms
;
1150 const Elf_Internal_Rela
*rela
;
1151 const Elf_Internal_Rela
*rela_end
;
1152 struct elf32_hppa_link_hash_table
*htab
;
1154 int tls_type
= GOT_UNKNOWN
, old_tls_type
= GOT_UNKNOWN
;
1156 if (info
->relocatable
)
1159 htab
= hppa_link_hash_table (info
);
1162 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1163 eh_syms
= elf_sym_hashes (abfd
);
1166 rela_end
= relocs
+ sec
->reloc_count
;
1167 for (rela
= relocs
; rela
< rela_end
; rela
++)
1176 unsigned int r_symndx
, r_type
;
1177 struct elf32_hppa_link_hash_entry
*hh
;
1180 r_symndx
= ELF32_R_SYM (rela
->r_info
);
1182 if (r_symndx
< symtab_hdr
->sh_info
)
1186 hh
= hppa_elf_hash_entry (eh_syms
[r_symndx
- symtab_hdr
->sh_info
]);
1187 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
1188 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
1189 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
1192 r_type
= ELF32_R_TYPE (rela
->r_info
);
1193 r_type
= elf32_hppa_optimized_tls_reloc (info
, r_type
, hh
== NULL
);
1197 case R_PARISC_DLTIND14F
:
1198 case R_PARISC_DLTIND14R
:
1199 case R_PARISC_DLTIND21L
:
1200 /* This symbol requires a global offset table entry. */
1201 need_entry
= NEED_GOT
;
1204 case R_PARISC_PLABEL14R
: /* "Official" procedure labels. */
1205 case R_PARISC_PLABEL21L
:
1206 case R_PARISC_PLABEL32
:
1207 /* If the addend is non-zero, we break badly. */
1208 if (rela
->r_addend
!= 0)
1211 /* If we are creating a shared library, then we need to
1212 create a PLT entry for all PLABELs, because PLABELs with
1213 local symbols may be passed via a pointer to another
1214 object. Additionally, output a dynamic relocation
1215 pointing to the PLT entry.
1217 For executables, the original 32-bit ABI allowed two
1218 different styles of PLABELs (function pointers): For
1219 global functions, the PLABEL word points into the .plt
1220 two bytes past a (function address, gp) pair, and for
1221 local functions the PLABEL points directly at the
1222 function. The magic +2 for the first type allows us to
1223 differentiate between the two. As you can imagine, this
1224 is a real pain when it comes to generating code to call
1225 functions indirectly or to compare function pointers.
1226 We avoid the mess by always pointing a PLABEL into the
1227 .plt, even for local functions. */
1228 need_entry
= PLT_PLABEL
| NEED_PLT
| NEED_DYNREL
;
1231 case R_PARISC_PCREL12F
:
1232 htab
->has_12bit_branch
= 1;
1235 case R_PARISC_PCREL17C
:
1236 case R_PARISC_PCREL17F
:
1237 htab
->has_17bit_branch
= 1;
1240 case R_PARISC_PCREL22F
:
1241 htab
->has_22bit_branch
= 1;
1243 /* Function calls might need to go through the .plt, and
1244 might require long branch stubs. */
1247 /* We know local syms won't need a .plt entry, and if
1248 they need a long branch stub we can't guarantee that
1249 we can reach the stub. So just flag an error later
1250 if we're doing a shared link and find we need a long
1256 /* Global symbols will need a .plt entry if they remain
1257 global, and in most cases won't need a long branch
1258 stub. Unfortunately, we have to cater for the case
1259 where a symbol is forced local by versioning, or due
1260 to symbolic linking, and we lose the .plt entry. */
1261 need_entry
= NEED_PLT
;
1262 if (hh
->eh
.type
== STT_PARISC_MILLI
)
1267 case R_PARISC_SEGBASE
: /* Used to set segment base. */
1268 case R_PARISC_SEGREL32
: /* Relative reloc, used for unwind. */
1269 case R_PARISC_PCREL14F
: /* PC relative load/store. */
1270 case R_PARISC_PCREL14R
:
1271 case R_PARISC_PCREL17R
: /* External branches. */
1272 case R_PARISC_PCREL21L
: /* As above, and for load/store too. */
1273 case R_PARISC_PCREL32
:
1274 /* We don't need to propagate the relocation if linking a
1275 shared object since these are section relative. */
1278 case R_PARISC_DPREL14F
: /* Used for gp rel data load/store. */
1279 case R_PARISC_DPREL14R
:
1280 case R_PARISC_DPREL21L
:
1283 (*_bfd_error_handler
)
1284 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1286 elf_hppa_howto_table
[r_type
].name
);
1287 bfd_set_error (bfd_error_bad_value
);
1292 case R_PARISC_DIR17F
: /* Used for external branches. */
1293 case R_PARISC_DIR17R
:
1294 case R_PARISC_DIR14F
: /* Used for load/store from absolute locn. */
1295 case R_PARISC_DIR14R
:
1296 case R_PARISC_DIR21L
: /* As above, and for ext branches too. */
1297 case R_PARISC_DIR32
: /* .word relocs. */
1298 /* We may want to output a dynamic relocation later. */
1299 need_entry
= NEED_DYNREL
;
1302 /* This relocation describes the C++ object vtable hierarchy.
1303 Reconstruct it for later use during GC. */
1304 case R_PARISC_GNU_VTINHERIT
:
1305 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, &hh
->eh
, rela
->r_offset
))
1309 /* This relocation describes which C++ vtable entries are actually
1310 used. Record for later use during GC. */
1311 case R_PARISC_GNU_VTENTRY
:
1312 BFD_ASSERT (hh
!= NULL
);
1314 && !bfd_elf_gc_record_vtentry (abfd
, sec
, &hh
->eh
, rela
->r_addend
))
1318 case R_PARISC_TLS_GD21L
:
1319 case R_PARISC_TLS_GD14R
:
1320 case R_PARISC_TLS_LDM21L
:
1321 case R_PARISC_TLS_LDM14R
:
1322 need_entry
= NEED_GOT
;
1325 case R_PARISC_TLS_IE21L
:
1326 case R_PARISC_TLS_IE14R
:
1328 info
->flags
|= DF_STATIC_TLS
;
1329 need_entry
= NEED_GOT
;
1336 /* Now carry out our orders. */
1337 if (need_entry
& NEED_GOT
)
1342 tls_type
= GOT_NORMAL
;
1344 case R_PARISC_TLS_GD21L
:
1345 case R_PARISC_TLS_GD14R
:
1346 tls_type
|= GOT_TLS_GD
;
1348 case R_PARISC_TLS_LDM21L
:
1349 case R_PARISC_TLS_LDM14R
:
1350 tls_type
|= GOT_TLS_LDM
;
1352 case R_PARISC_TLS_IE21L
:
1353 case R_PARISC_TLS_IE14R
:
1354 tls_type
|= GOT_TLS_IE
;
1358 /* Allocate space for a GOT entry, as well as a dynamic
1359 relocation for this entry. */
1360 if (htab
->sgot
== NULL
)
1362 if (htab
->etab
.dynobj
== NULL
)
1363 htab
->etab
.dynobj
= abfd
;
1364 if (!elf32_hppa_create_dynamic_sections (htab
->etab
.dynobj
, info
))
1368 if (r_type
== R_PARISC_TLS_LDM21L
1369 || r_type
== R_PARISC_TLS_LDM14R
)
1370 htab
->tls_ldm_got
.refcount
+= 1;
1375 hh
->eh
.got
.refcount
+= 1;
1376 old_tls_type
= hh
->tls_type
;
1380 bfd_signed_vma
*local_got_refcounts
;
1382 /* This is a global offset table entry for a local symbol. */
1383 local_got_refcounts
= hppa32_elf_local_refcounts (abfd
);
1384 if (local_got_refcounts
== NULL
)
1386 local_got_refcounts
[r_symndx
] += 1;
1388 old_tls_type
= hppa_elf_local_got_tls_type (abfd
) [r_symndx
];
1391 tls_type
|= old_tls_type
;
1393 if (old_tls_type
!= tls_type
)
1396 hh
->tls_type
= tls_type
;
1398 hppa_elf_local_got_tls_type (abfd
) [r_symndx
] = tls_type
;
1404 if (need_entry
& NEED_PLT
)
1406 /* If we are creating a shared library, and this is a reloc
1407 against a weak symbol or a global symbol in a dynamic
1408 object, then we will be creating an import stub and a
1409 .plt entry for the symbol. Similarly, on a normal link
1410 to symbols defined in a dynamic object we'll need the
1411 import stub and a .plt entry. We don't know yet whether
1412 the symbol is defined or not, so make an entry anyway and
1413 clean up later in adjust_dynamic_symbol. */
1414 if ((sec
->flags
& SEC_ALLOC
) != 0)
1418 hh
->eh
.needs_plt
= 1;
1419 hh
->eh
.plt
.refcount
+= 1;
1421 /* If this .plt entry is for a plabel, mark it so
1422 that adjust_dynamic_symbol will keep the entry
1423 even if it appears to be local. */
1424 if (need_entry
& PLT_PLABEL
)
1427 else if (need_entry
& PLT_PLABEL
)
1429 bfd_signed_vma
*local_got_refcounts
;
1430 bfd_signed_vma
*local_plt_refcounts
;
1432 local_got_refcounts
= hppa32_elf_local_refcounts (abfd
);
1433 if (local_got_refcounts
== NULL
)
1435 local_plt_refcounts
= (local_got_refcounts
1436 + symtab_hdr
->sh_info
);
1437 local_plt_refcounts
[r_symndx
] += 1;
1442 if (need_entry
& NEED_DYNREL
)
1444 /* Flag this symbol as having a non-got, non-plt reference
1445 so that we generate copy relocs if it turns out to be
1447 if (hh
!= NULL
&& !info
->shared
)
1448 hh
->eh
.non_got_ref
= 1;
1450 /* If we are creating a shared library then we need to copy
1451 the reloc into the shared library. However, if we are
1452 linking with -Bsymbolic, we need only copy absolute
1453 relocs or relocs against symbols that are not defined in
1454 an object we are including in the link. PC- or DP- or
1455 DLT-relative relocs against any local sym or global sym
1456 with DEF_REGULAR set, can be discarded. At this point we
1457 have not seen all the input files, so it is possible that
1458 DEF_REGULAR is not set now but will be set later (it is
1459 never cleared). We account for that possibility below by
1460 storing information in the dyn_relocs field of the
1463 A similar situation to the -Bsymbolic case occurs when
1464 creating shared libraries and symbol visibility changes
1465 render the symbol local.
1467 As it turns out, all the relocs we will be creating here
1468 are absolute, so we cannot remove them on -Bsymbolic
1469 links or visibility changes anyway. A STUB_REL reloc
1470 is absolute too, as in that case it is the reloc in the
1471 stub we will be creating, rather than copying the PCREL
1472 reloc in the branch.
1474 If on the other hand, we are creating an executable, we
1475 may need to keep relocations for symbols satisfied by a
1476 dynamic library if we manage to avoid copy relocs for the
1479 && (sec
->flags
& SEC_ALLOC
) != 0
1480 && (IS_ABSOLUTE_RELOC (r_type
)
1483 || hh
->eh
.root
.type
== bfd_link_hash_defweak
1484 || !hh
->eh
.def_regular
))))
1485 || (ELIMINATE_COPY_RELOCS
1487 && (sec
->flags
& SEC_ALLOC
) != 0
1489 && (hh
->eh
.root
.type
== bfd_link_hash_defweak
1490 || !hh
->eh
.def_regular
)))
1492 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1493 struct elf32_hppa_dyn_reloc_entry
**hdh_head
;
1495 /* Create a reloc section in dynobj and make room for
1499 if (htab
->etab
.dynobj
== NULL
)
1500 htab
->etab
.dynobj
= abfd
;
1502 sreloc
= _bfd_elf_make_dynamic_reloc_section
1503 (sec
, htab
->etab
.dynobj
, 2, abfd
, /*rela?*/ TRUE
);
1507 bfd_set_error (bfd_error_bad_value
);
1512 /* If this is a global symbol, we count the number of
1513 relocations we need for this symbol. */
1516 hdh_head
= &hh
->dyn_relocs
;
1520 /* Track dynamic relocs needed for local syms too.
1521 We really need local syms available to do this
1525 Elf_Internal_Sym
*isym
;
1527 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
1532 sr
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
1536 vpp
= &elf_section_data (sr
)->local_dynrel
;
1537 hdh_head
= (struct elf32_hppa_dyn_reloc_entry
**) vpp
;
1541 if (hdh_p
== NULL
|| hdh_p
->sec
!= sec
)
1543 hdh_p
= bfd_alloc (htab
->etab
.dynobj
, sizeof *hdh_p
);
1546 hdh_p
->hdh_next
= *hdh_head
;
1550 #if RELATIVE_DYNRELOCS
1551 hdh_p
->relative_count
= 0;
1556 #if RELATIVE_DYNRELOCS
1557 if (!IS_ABSOLUTE_RELOC (rtype
))
1558 hdh_p
->relative_count
+= 1;
1567 /* Return the section that should be marked against garbage collection
1568 for a given relocation. */
1571 elf32_hppa_gc_mark_hook (asection
*sec
,
1572 struct bfd_link_info
*info
,
1573 Elf_Internal_Rela
*rela
,
1574 struct elf_link_hash_entry
*hh
,
1575 Elf_Internal_Sym
*sym
)
1578 switch ((unsigned int) ELF32_R_TYPE (rela
->r_info
))
1580 case R_PARISC_GNU_VTINHERIT
:
1581 case R_PARISC_GNU_VTENTRY
:
1585 return _bfd_elf_gc_mark_hook (sec
, info
, rela
, hh
, sym
);
1588 /* Update the got and plt entry reference counts for the section being
1592 elf32_hppa_gc_sweep_hook (bfd
*abfd
,
1593 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
1595 const Elf_Internal_Rela
*relocs
)
1597 Elf_Internal_Shdr
*symtab_hdr
;
1598 struct elf_link_hash_entry
**eh_syms
;
1599 bfd_signed_vma
*local_got_refcounts
;
1600 bfd_signed_vma
*local_plt_refcounts
;
1601 const Elf_Internal_Rela
*rela
, *relend
;
1602 struct elf32_hppa_link_hash_table
*htab
;
1604 if (info
->relocatable
)
1607 htab
= hppa_link_hash_table (info
);
1611 elf_section_data (sec
)->local_dynrel
= NULL
;
1613 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1614 eh_syms
= elf_sym_hashes (abfd
);
1615 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1616 local_plt_refcounts
= local_got_refcounts
;
1617 if (local_plt_refcounts
!= NULL
)
1618 local_plt_refcounts
+= symtab_hdr
->sh_info
;
1620 relend
= relocs
+ sec
->reloc_count
;
1621 for (rela
= relocs
; rela
< relend
; rela
++)
1623 unsigned long r_symndx
;
1624 unsigned int r_type
;
1625 struct elf_link_hash_entry
*eh
= NULL
;
1627 r_symndx
= ELF32_R_SYM (rela
->r_info
);
1628 if (r_symndx
>= symtab_hdr
->sh_info
)
1630 struct elf32_hppa_link_hash_entry
*hh
;
1631 struct elf32_hppa_dyn_reloc_entry
**hdh_pp
;
1632 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1634 eh
= eh_syms
[r_symndx
- symtab_hdr
->sh_info
];
1635 while (eh
->root
.type
== bfd_link_hash_indirect
1636 || eh
->root
.type
== bfd_link_hash_warning
)
1637 eh
= (struct elf_link_hash_entry
*) eh
->root
.u
.i
.link
;
1638 hh
= hppa_elf_hash_entry (eh
);
1640 for (hdh_pp
= &hh
->dyn_relocs
; (hdh_p
= *hdh_pp
) != NULL
; hdh_pp
= &hdh_p
->hdh_next
)
1641 if (hdh_p
->sec
== sec
)
1643 /* Everything must go for SEC. */
1644 *hdh_pp
= hdh_p
->hdh_next
;
1649 r_type
= ELF32_R_TYPE (rela
->r_info
);
1650 r_type
= elf32_hppa_optimized_tls_reloc (info
, r_type
, eh
!= NULL
);
1654 case R_PARISC_DLTIND14F
:
1655 case R_PARISC_DLTIND14R
:
1656 case R_PARISC_DLTIND21L
:
1657 case R_PARISC_TLS_GD21L
:
1658 case R_PARISC_TLS_GD14R
:
1659 case R_PARISC_TLS_IE21L
:
1660 case R_PARISC_TLS_IE14R
:
1663 if (eh
->got
.refcount
> 0)
1664 eh
->got
.refcount
-= 1;
1666 else if (local_got_refcounts
!= NULL
)
1668 if (local_got_refcounts
[r_symndx
] > 0)
1669 local_got_refcounts
[r_symndx
] -= 1;
1673 case R_PARISC_TLS_LDM21L
:
1674 case R_PARISC_TLS_LDM14R
:
1675 htab
->tls_ldm_got
.refcount
-= 1;
1678 case R_PARISC_PCREL12F
:
1679 case R_PARISC_PCREL17C
:
1680 case R_PARISC_PCREL17F
:
1681 case R_PARISC_PCREL22F
:
1684 if (eh
->plt
.refcount
> 0)
1685 eh
->plt
.refcount
-= 1;
1689 case R_PARISC_PLABEL14R
:
1690 case R_PARISC_PLABEL21L
:
1691 case R_PARISC_PLABEL32
:
1694 if (eh
->plt
.refcount
> 0)
1695 eh
->plt
.refcount
-= 1;
1697 else if (local_plt_refcounts
!= NULL
)
1699 if (local_plt_refcounts
[r_symndx
] > 0)
1700 local_plt_refcounts
[r_symndx
] -= 1;
1712 /* Support for core dump NOTE sections. */
1715 elf32_hppa_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
1720 switch (note
->descsz
)
1725 case 396: /* Linux/hppa */
1727 elf_tdata (abfd
)->core_signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
1730 elf_tdata (abfd
)->core_lwpid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
1739 /* Make a ".reg/999" section. */
1740 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
1741 size
, note
->descpos
+ offset
);
1745 elf32_hppa_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
1747 switch (note
->descsz
)
1752 case 124: /* Linux/hppa elf_prpsinfo. */
1753 elf_tdata (abfd
)->core_program
1754 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
1755 elf_tdata (abfd
)->core_command
1756 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
1759 /* Note that for some reason, a spurious space is tacked
1760 onto the end of the args in some (at least one anyway)
1761 implementations, so strip it off if it exists. */
1763 char *command
= elf_tdata (abfd
)->core_command
;
1764 int n
= strlen (command
);
1766 if (0 < n
&& command
[n
- 1] == ' ')
1767 command
[n
- 1] = '\0';
1773 /* Our own version of hide_symbol, so that we can keep plt entries for
1777 elf32_hppa_hide_symbol (struct bfd_link_info
*info
,
1778 struct elf_link_hash_entry
*eh
,
1779 bfd_boolean force_local
)
1783 eh
->forced_local
= 1;
1784 if (eh
->dynindx
!= -1)
1787 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
1792 /* STT_GNU_IFUNC symbol must go through PLT. */
1793 if (! hppa_elf_hash_entry (eh
)->plabel
1794 && eh
->type
!= STT_GNU_IFUNC
)
1797 eh
->plt
= elf_hash_table (info
)->init_plt_offset
;
1801 /* Adjust a symbol defined by a dynamic object and referenced by a
1802 regular object. The current definition is in some section of the
1803 dynamic object, but we're not including those sections. We have to
1804 change the definition to something the rest of the link can
1808 elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info
*info
,
1809 struct elf_link_hash_entry
*eh
)
1811 struct elf32_hppa_link_hash_table
*htab
;
1814 /* If this is a function, put it in the procedure linkage table. We
1815 will fill in the contents of the procedure linkage table later. */
1816 if (eh
->type
== STT_FUNC
1819 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1820 The refcounts are not reliable when it has been hidden since
1821 hide_symbol can be called before the plabel flag is set. */
1822 if (hppa_elf_hash_entry (eh
)->plabel
1823 && eh
->plt
.refcount
<= 0)
1824 eh
->plt
.refcount
= 1;
1826 if (eh
->plt
.refcount
<= 0
1828 && eh
->root
.type
!= bfd_link_hash_defweak
1829 && ! hppa_elf_hash_entry (eh
)->plabel
1830 && (!info
->shared
|| info
->symbolic
)))
1832 /* The .plt entry is not needed when:
1833 a) Garbage collection has removed all references to the
1835 b) We know for certain the symbol is defined in this
1836 object, and it's not a weak definition, nor is the symbol
1837 used by a plabel relocation. Either this object is the
1838 application or we are doing a shared symbolic link. */
1840 eh
->plt
.offset
= (bfd_vma
) -1;
1847 eh
->plt
.offset
= (bfd_vma
) -1;
1849 /* If this is a weak symbol, and there is a real definition, the
1850 processor independent code will have arranged for us to see the
1851 real definition first, and we can just use the same value. */
1852 if (eh
->u
.weakdef
!= NULL
)
1854 if (eh
->u
.weakdef
->root
.type
!= bfd_link_hash_defined
1855 && eh
->u
.weakdef
->root
.type
!= bfd_link_hash_defweak
)
1857 eh
->root
.u
.def
.section
= eh
->u
.weakdef
->root
.u
.def
.section
;
1858 eh
->root
.u
.def
.value
= eh
->u
.weakdef
->root
.u
.def
.value
;
1859 if (ELIMINATE_COPY_RELOCS
)
1860 eh
->non_got_ref
= eh
->u
.weakdef
->non_got_ref
;
1864 /* This is a reference to a symbol defined by a dynamic object which
1865 is not a function. */
1867 /* If we are creating a shared library, we must presume that the
1868 only references to the symbol are via the global offset table.
1869 For such cases we need not do anything here; the relocations will
1870 be handled correctly by relocate_section. */
1874 /* If there are no references to this symbol that do not use the
1875 GOT, we don't need to generate a copy reloc. */
1876 if (!eh
->non_got_ref
)
1879 if (ELIMINATE_COPY_RELOCS
)
1881 struct elf32_hppa_link_hash_entry
*hh
;
1882 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1884 hh
= hppa_elf_hash_entry (eh
);
1885 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
1887 sec
= hdh_p
->sec
->output_section
;
1888 if (sec
!= NULL
&& (sec
->flags
& SEC_READONLY
) != 0)
1892 /* If we didn't find any dynamic relocs in read-only sections, then
1893 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1896 eh
->non_got_ref
= 0;
1901 /* We must allocate the symbol in our .dynbss section, which will
1902 become part of the .bss section of the executable. There will be
1903 an entry for this symbol in the .dynsym section. The dynamic
1904 object will contain position independent code, so all references
1905 from the dynamic object to this symbol will go through the global
1906 offset table. The dynamic linker will use the .dynsym entry to
1907 determine the address it must put in the global offset table, so
1908 both the dynamic object and the regular object will refer to the
1909 same memory location for the variable. */
1911 htab
= hppa_link_hash_table (info
);
1915 /* We must generate a COPY reloc to tell the dynamic linker to
1916 copy the initial value out of the dynamic object and into the
1917 runtime process image. */
1918 if ((eh
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && eh
->size
!= 0)
1920 htab
->srelbss
->size
+= sizeof (Elf32_External_Rela
);
1924 sec
= htab
->sdynbss
;
1926 return _bfd_elf_adjust_dynamic_copy (eh
, sec
);
1929 /* Allocate space in the .plt for entries that won't have relocations.
1930 ie. plabel entries. */
1933 allocate_plt_static (struct elf_link_hash_entry
*eh
, void *inf
)
1935 struct bfd_link_info
*info
;
1936 struct elf32_hppa_link_hash_table
*htab
;
1937 struct elf32_hppa_link_hash_entry
*hh
;
1940 if (eh
->root
.type
== bfd_link_hash_indirect
)
1943 info
= (struct bfd_link_info
*) inf
;
1944 hh
= hppa_elf_hash_entry (eh
);
1945 htab
= hppa_link_hash_table (info
);
1949 if (htab
->etab
.dynamic_sections_created
1950 && eh
->plt
.refcount
> 0)
1952 /* Make sure this symbol is output as a dynamic symbol.
1953 Undefined weak syms won't yet be marked as dynamic. */
1954 if (eh
->dynindx
== -1
1955 && !eh
->forced_local
1956 && eh
->type
!= STT_PARISC_MILLI
)
1958 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
1962 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info
->shared
, eh
))
1964 /* Allocate these later. From this point on, h->plabel
1965 means that the plt entry is only used by a plabel.
1966 We'll be using a normal plt entry for this symbol, so
1967 clear the plabel indicator. */
1971 else if (hh
->plabel
)
1973 /* Make an entry in the .plt section for plabel references
1974 that won't have a .plt entry for other reasons. */
1976 eh
->plt
.offset
= sec
->size
;
1977 sec
->size
+= PLT_ENTRY_SIZE
;
1981 /* No .plt entry needed. */
1982 eh
->plt
.offset
= (bfd_vma
) -1;
1988 eh
->plt
.offset
= (bfd_vma
) -1;
1995 /* Allocate space in .plt, .got and associated reloc sections for
1999 allocate_dynrelocs (struct elf_link_hash_entry
*eh
, void *inf
)
2001 struct bfd_link_info
*info
;
2002 struct elf32_hppa_link_hash_table
*htab
;
2004 struct elf32_hppa_link_hash_entry
*hh
;
2005 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
2007 if (eh
->root
.type
== bfd_link_hash_indirect
)
2011 htab
= hppa_link_hash_table (info
);
2015 hh
= hppa_elf_hash_entry (eh
);
2017 if (htab
->etab
.dynamic_sections_created
2018 && eh
->plt
.offset
!= (bfd_vma
) -1
2020 && eh
->plt
.refcount
> 0)
2022 /* Make an entry in the .plt section. */
2024 eh
->plt
.offset
= sec
->size
;
2025 sec
->size
+= PLT_ENTRY_SIZE
;
2027 /* We also need to make an entry in the .rela.plt section. */
2028 htab
->srelplt
->size
+= sizeof (Elf32_External_Rela
);
2029 htab
->need_plt_stub
= 1;
2032 if (eh
->got
.refcount
> 0)
2034 /* Make sure this symbol is output as a dynamic symbol.
2035 Undefined weak syms won't yet be marked as dynamic. */
2036 if (eh
->dynindx
== -1
2037 && !eh
->forced_local
2038 && eh
->type
!= STT_PARISC_MILLI
)
2040 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
2045 eh
->got
.offset
= sec
->size
;
2046 sec
->size
+= GOT_ENTRY_SIZE
;
2047 /* R_PARISC_TLS_GD* needs two GOT entries */
2048 if ((hh
->tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2049 sec
->size
+= GOT_ENTRY_SIZE
* 2;
2050 else if ((hh
->tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2051 sec
->size
+= GOT_ENTRY_SIZE
;
2052 if (htab
->etab
.dynamic_sections_created
2054 || (eh
->dynindx
!= -1
2055 && !eh
->forced_local
)))
2057 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
2058 if ((hh
->tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2059 htab
->srelgot
->size
+= 2 * sizeof (Elf32_External_Rela
);
2060 else if ((hh
->tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2061 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
2065 eh
->got
.offset
= (bfd_vma
) -1;
2067 if (hh
->dyn_relocs
== NULL
)
2070 /* If this is a -Bsymbolic shared link, then we need to discard all
2071 space allocated for dynamic pc-relative relocs against symbols
2072 defined in a regular object. For the normal shared case, discard
2073 space for relocs that have become local due to symbol visibility
2077 #if RELATIVE_DYNRELOCS
2078 if (SYMBOL_CALLS_LOCAL (info
, eh
))
2080 struct elf32_hppa_dyn_reloc_entry
**hdh_pp
;
2082 for (hdh_pp
= &hh
->dyn_relocs
; (hdh_p
= *hdh_pp
) != NULL
; )
2084 hdh_p
->count
-= hdh_p
->relative_count
;
2085 hdh_p
->relative_count
= 0;
2086 if (hdh_p
->count
== 0)
2087 *hdh_pp
= hdh_p
->hdh_next
;
2089 hdh_pp
= &hdh_p
->hdh_next
;
2094 /* Also discard relocs on undefined weak syms with non-default
2096 if (hh
->dyn_relocs
!= NULL
2097 && eh
->root
.type
== bfd_link_hash_undefweak
)
2099 if (ELF_ST_VISIBILITY (eh
->other
) != STV_DEFAULT
)
2100 hh
->dyn_relocs
= NULL
;
2102 /* Make sure undefined weak symbols are output as a dynamic
2104 else if (eh
->dynindx
== -1
2105 && !eh
->forced_local
)
2107 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
2114 /* For the non-shared case, discard space for relocs against
2115 symbols which turn out to need copy relocs or are not
2118 if (!eh
->non_got_ref
2119 && ((ELIMINATE_COPY_RELOCS
2121 && !eh
->def_regular
)
2122 || (htab
->etab
.dynamic_sections_created
2123 && (eh
->root
.type
== bfd_link_hash_undefweak
2124 || eh
->root
.type
== bfd_link_hash_undefined
))))
2126 /* Make sure this symbol is output as a dynamic symbol.
2127 Undefined weak syms won't yet be marked as dynamic. */
2128 if (eh
->dynindx
== -1
2129 && !eh
->forced_local
2130 && eh
->type
!= STT_PARISC_MILLI
)
2132 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
2136 /* If that succeeded, we know we'll be keeping all the
2138 if (eh
->dynindx
!= -1)
2142 hh
->dyn_relocs
= NULL
;
2148 /* Finally, allocate space. */
2149 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
2151 asection
*sreloc
= elf_section_data (hdh_p
->sec
)->sreloc
;
2152 sreloc
->size
+= hdh_p
->count
* sizeof (Elf32_External_Rela
);
2158 /* This function is called via elf_link_hash_traverse to force
2159 millicode symbols local so they do not end up as globals in the
2160 dynamic symbol table. We ought to be able to do this in
2161 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2162 for all dynamic symbols. Arguably, this is a bug in
2163 elf_adjust_dynamic_symbol. */
2166 clobber_millicode_symbols (struct elf_link_hash_entry
*eh
,
2167 struct bfd_link_info
*info
)
2169 if (eh
->type
== STT_PARISC_MILLI
2170 && !eh
->forced_local
)
2172 elf32_hppa_hide_symbol (info
, eh
, TRUE
);
2177 /* Find any dynamic relocs that apply to read-only sections. */
2180 readonly_dynrelocs (struct elf_link_hash_entry
*eh
, void *inf
)
2182 struct elf32_hppa_link_hash_entry
*hh
;
2183 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
2185 hh
= hppa_elf_hash_entry (eh
);
2186 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
2188 asection
*sec
= hdh_p
->sec
->output_section
;
2190 if (sec
!= NULL
&& (sec
->flags
& SEC_READONLY
) != 0)
2192 struct bfd_link_info
*info
= inf
;
2194 info
->flags
|= DF_TEXTREL
;
2196 /* Not an error, just cut short the traversal. */
2203 /* Set the sizes of the dynamic sections. */
2206 elf32_hppa_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2207 struct bfd_link_info
*info
)
2209 struct elf32_hppa_link_hash_table
*htab
;
2215 htab
= hppa_link_hash_table (info
);
2219 dynobj
= htab
->etab
.dynobj
;
2223 if (htab
->etab
.dynamic_sections_created
)
2225 /* Set the contents of the .interp section to the interpreter. */
2226 if (info
->executable
)
2228 sec
= bfd_get_linker_section (dynobj
, ".interp");
2231 sec
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
2232 sec
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
2235 /* Force millicode symbols local. */
2236 elf_link_hash_traverse (&htab
->etab
,
2237 clobber_millicode_symbols
,
2241 /* Set up .got and .plt offsets for local syms, and space for local
2243 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
2245 bfd_signed_vma
*local_got
;
2246 bfd_signed_vma
*end_local_got
;
2247 bfd_signed_vma
*local_plt
;
2248 bfd_signed_vma
*end_local_plt
;
2249 bfd_size_type locsymcount
;
2250 Elf_Internal_Shdr
*symtab_hdr
;
2252 char *local_tls_type
;
2254 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2257 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
2259 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
2261 for (hdh_p
= ((struct elf32_hppa_dyn_reloc_entry
*)
2262 elf_section_data (sec
)->local_dynrel
);
2264 hdh_p
= hdh_p
->hdh_next
)
2266 if (!bfd_is_abs_section (hdh_p
->sec
)
2267 && bfd_is_abs_section (hdh_p
->sec
->output_section
))
2269 /* Input section has been discarded, either because
2270 it is a copy of a linkonce section or due to
2271 linker script /DISCARD/, so we'll be discarding
2274 else if (hdh_p
->count
!= 0)
2276 srel
= elf_section_data (hdh_p
->sec
)->sreloc
;
2277 srel
->size
+= hdh_p
->count
* sizeof (Elf32_External_Rela
);
2278 if ((hdh_p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2279 info
->flags
|= DF_TEXTREL
;
2284 local_got
= elf_local_got_refcounts (ibfd
);
2288 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
2289 locsymcount
= symtab_hdr
->sh_info
;
2290 end_local_got
= local_got
+ locsymcount
;
2291 local_tls_type
= hppa_elf_local_got_tls_type (ibfd
);
2293 srel
= htab
->srelgot
;
2294 for (; local_got
< end_local_got
; ++local_got
)
2298 *local_got
= sec
->size
;
2299 sec
->size
+= GOT_ENTRY_SIZE
;
2300 if ((*local_tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2301 sec
->size
+= 2 * GOT_ENTRY_SIZE
;
2302 else if ((*local_tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2303 sec
->size
+= GOT_ENTRY_SIZE
;
2306 srel
->size
+= sizeof (Elf32_External_Rela
);
2307 if ((*local_tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2308 srel
->size
+= 2 * sizeof (Elf32_External_Rela
);
2309 else if ((*local_tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2310 srel
->size
+= sizeof (Elf32_External_Rela
);
2314 *local_got
= (bfd_vma
) -1;
2319 local_plt
= end_local_got
;
2320 end_local_plt
= local_plt
+ locsymcount
;
2321 if (! htab
->etab
.dynamic_sections_created
)
2323 /* Won't be used, but be safe. */
2324 for (; local_plt
< end_local_plt
; ++local_plt
)
2325 *local_plt
= (bfd_vma
) -1;
2330 srel
= htab
->srelplt
;
2331 for (; local_plt
< end_local_plt
; ++local_plt
)
2335 *local_plt
= sec
->size
;
2336 sec
->size
+= PLT_ENTRY_SIZE
;
2338 srel
->size
+= sizeof (Elf32_External_Rela
);
2341 *local_plt
= (bfd_vma
) -1;
2346 if (htab
->tls_ldm_got
.refcount
> 0)
2348 /* Allocate 2 got entries and 1 dynamic reloc for
2349 R_PARISC_TLS_DTPMOD32 relocs. */
2350 htab
->tls_ldm_got
.offset
= htab
->sgot
->size
;
2351 htab
->sgot
->size
+= (GOT_ENTRY_SIZE
* 2);
2352 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
2355 htab
->tls_ldm_got
.offset
= -1;
2357 /* Do all the .plt entries without relocs first. The dynamic linker
2358 uses the last .plt reloc to find the end of the .plt (and hence
2359 the start of the .got) for lazy linking. */
2360 elf_link_hash_traverse (&htab
->etab
, allocate_plt_static
, info
);
2362 /* Allocate global sym .plt and .got entries, and space for global
2363 sym dynamic relocs. */
2364 elf_link_hash_traverse (&htab
->etab
, allocate_dynrelocs
, info
);
2366 /* The check_relocs and adjust_dynamic_symbol entry points have
2367 determined the sizes of the various dynamic sections. Allocate
2370 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
2372 if ((sec
->flags
& SEC_LINKER_CREATED
) == 0)
2375 if (sec
== htab
->splt
)
2377 if (htab
->need_plt_stub
)
2379 /* Make space for the plt stub at the end of the .plt
2380 section. We want this stub right at the end, up
2381 against the .got section. */
2382 int gotalign
= bfd_section_alignment (dynobj
, htab
->sgot
);
2383 int pltalign
= bfd_section_alignment (dynobj
, sec
);
2386 if (gotalign
> pltalign
)
2387 bfd_set_section_alignment (dynobj
, sec
, gotalign
);
2388 mask
= ((bfd_size_type
) 1 << gotalign
) - 1;
2389 sec
->size
= (sec
->size
+ sizeof (plt_stub
) + mask
) & ~mask
;
2392 else if (sec
== htab
->sgot
2393 || sec
== htab
->sdynbss
)
2395 else if (CONST_STRNEQ (bfd_get_section_name (dynobj
, sec
), ".rela"))
2399 /* Remember whether there are any reloc sections other
2401 if (sec
!= htab
->srelplt
)
2404 /* We use the reloc_count field as a counter if we need
2405 to copy relocs into the output file. */
2406 sec
->reloc_count
= 0;
2411 /* It's not one of our sections, so don't allocate space. */
2417 /* If we don't need this section, strip it from the
2418 output file. This is mostly to handle .rela.bss and
2419 .rela.plt. We must create both sections in
2420 create_dynamic_sections, because they must be created
2421 before the linker maps input sections to output
2422 sections. The linker does that before
2423 adjust_dynamic_symbol is called, and it is that
2424 function which decides whether anything needs to go
2425 into these sections. */
2426 sec
->flags
|= SEC_EXCLUDE
;
2430 if ((sec
->flags
& SEC_HAS_CONTENTS
) == 0)
2433 /* Allocate memory for the section contents. Zero it, because
2434 we may not fill in all the reloc sections. */
2435 sec
->contents
= bfd_zalloc (dynobj
, sec
->size
);
2436 if (sec
->contents
== NULL
)
2440 if (htab
->etab
.dynamic_sections_created
)
2442 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2443 actually has nothing to do with the PLT, it is how we
2444 communicate the LTP value of a load module to the dynamic
2446 #define add_dynamic_entry(TAG, VAL) \
2447 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2449 if (!add_dynamic_entry (DT_PLTGOT
, 0))
2452 /* Add some entries to the .dynamic section. We fill in the
2453 values later, in elf32_hppa_finish_dynamic_sections, but we
2454 must add the entries now so that we get the correct size for
2455 the .dynamic section. The DT_DEBUG entry is filled in by the
2456 dynamic linker and used by the debugger. */
2457 if (info
->executable
)
2459 if (!add_dynamic_entry (DT_DEBUG
, 0))
2463 if (htab
->srelplt
->size
!= 0)
2465 if (!add_dynamic_entry (DT_PLTRELSZ
, 0)
2466 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
2467 || !add_dynamic_entry (DT_JMPREL
, 0))
2473 if (!add_dynamic_entry (DT_RELA
, 0)
2474 || !add_dynamic_entry (DT_RELASZ
, 0)
2475 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
2478 /* If any dynamic relocs apply to a read-only section,
2479 then we need a DT_TEXTREL entry. */
2480 if ((info
->flags
& DF_TEXTREL
) == 0)
2481 elf_link_hash_traverse (&htab
->etab
, readonly_dynrelocs
, info
);
2483 if ((info
->flags
& DF_TEXTREL
) != 0)
2485 if (!add_dynamic_entry (DT_TEXTREL
, 0))
2490 #undef add_dynamic_entry
2495 /* External entry points for sizing and building linker stubs. */
2497 /* Set up various things so that we can make a list of input sections
2498 for each output section included in the link. Returns -1 on error,
2499 0 when no stubs will be needed, and 1 on success. */
2502 elf32_hppa_setup_section_lists (bfd
*output_bfd
, struct bfd_link_info
*info
)
2505 unsigned int bfd_count
;
2506 int top_id
, top_index
;
2508 asection
**input_list
, **list
;
2510 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2515 /* Count the number of input BFDs and find the top input section id. */
2516 for (input_bfd
= info
->input_bfds
, bfd_count
= 0, top_id
= 0;
2518 input_bfd
= input_bfd
->link_next
)
2521 for (section
= input_bfd
->sections
;
2523 section
= section
->next
)
2525 if (top_id
< section
->id
)
2526 top_id
= section
->id
;
2529 htab
->bfd_count
= bfd_count
;
2531 amt
= sizeof (struct map_stub
) * (top_id
+ 1);
2532 htab
->stub_group
= bfd_zmalloc (amt
);
2533 if (htab
->stub_group
== NULL
)
2536 /* We can't use output_bfd->section_count here to find the top output
2537 section index as some sections may have been removed, and
2538 strip_excluded_output_sections doesn't renumber the indices. */
2539 for (section
= output_bfd
->sections
, top_index
= 0;
2541 section
= section
->next
)
2543 if (top_index
< section
->index
)
2544 top_index
= section
->index
;
2547 htab
->top_index
= top_index
;
2548 amt
= sizeof (asection
*) * (top_index
+ 1);
2549 input_list
= bfd_malloc (amt
);
2550 htab
->input_list
= input_list
;
2551 if (input_list
== NULL
)
2554 /* For sections we aren't interested in, mark their entries with a
2555 value we can check later. */
2556 list
= input_list
+ top_index
;
2558 *list
= bfd_abs_section_ptr
;
2559 while (list
-- != input_list
);
2561 for (section
= output_bfd
->sections
;
2563 section
= section
->next
)
2565 if ((section
->flags
& SEC_CODE
) != 0)
2566 input_list
[section
->index
] = NULL
;
2572 /* The linker repeatedly calls this function for each input section,
2573 in the order that input sections are linked into output sections.
2574 Build lists of input sections to determine groupings between which
2575 we may insert linker stubs. */
2578 elf32_hppa_next_input_section (struct bfd_link_info
*info
, asection
*isec
)
2580 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2585 if (isec
->output_section
->index
<= htab
->top_index
)
2587 asection
**list
= htab
->input_list
+ isec
->output_section
->index
;
2588 if (*list
!= bfd_abs_section_ptr
)
2590 /* Steal the link_sec pointer for our list. */
2591 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2592 /* This happens to make the list in reverse order,
2593 which is what we want. */
2594 PREV_SEC (isec
) = *list
;
2600 /* See whether we can group stub sections together. Grouping stub
2601 sections may result in fewer stubs. More importantly, we need to
2602 put all .init* and .fini* stubs at the beginning of the .init or
2603 .fini output sections respectively, because glibc splits the
2604 _init and _fini functions into multiple parts. Putting a stub in
2605 the middle of a function is not a good idea. */
2608 group_sections (struct elf32_hppa_link_hash_table
*htab
,
2609 bfd_size_type stub_group_size
,
2610 bfd_boolean stubs_always_before_branch
)
2612 asection
**list
= htab
->input_list
+ htab
->top_index
;
2615 asection
*tail
= *list
;
2616 if (tail
== bfd_abs_section_ptr
)
2618 while (tail
!= NULL
)
2622 bfd_size_type total
;
2623 bfd_boolean big_sec
;
2627 big_sec
= total
>= stub_group_size
;
2629 while ((prev
= PREV_SEC (curr
)) != NULL
2630 && ((total
+= curr
->output_offset
- prev
->output_offset
)
2634 /* OK, the size from the start of CURR to the end is less
2635 than 240000 bytes and thus can be handled by one stub
2636 section. (or the tail section is itself larger than
2637 240000 bytes, in which case we may be toast.)
2638 We should really be keeping track of the total size of
2639 stubs added here, as stubs contribute to the final output
2640 section size. That's a little tricky, and this way will
2641 only break if stubs added total more than 22144 bytes, or
2642 2768 long branch stubs. It seems unlikely for more than
2643 2768 different functions to be called, especially from
2644 code only 240000 bytes long. This limit used to be
2645 250000, but c++ code tends to generate lots of little
2646 functions, and sometimes violated the assumption. */
2649 prev
= PREV_SEC (tail
);
2650 /* Set up this stub group. */
2651 htab
->stub_group
[tail
->id
].link_sec
= curr
;
2653 while (tail
!= curr
&& (tail
= prev
) != NULL
);
2655 /* But wait, there's more! Input sections up to 240000
2656 bytes before the stub section can be handled by it too.
2657 Don't do this if we have a really large section after the
2658 stubs, as adding more stubs increases the chance that
2659 branches may not reach into the stub section. */
2660 if (!stubs_always_before_branch
&& !big_sec
)
2664 && ((total
+= tail
->output_offset
- prev
->output_offset
)
2668 prev
= PREV_SEC (tail
);
2669 htab
->stub_group
[tail
->id
].link_sec
= curr
;
2675 while (list
-- != htab
->input_list
);
2676 free (htab
->input_list
);
2680 /* Read in all local syms for all input bfds, and create hash entries
2681 for export stubs if we are building a multi-subspace shared lib.
2682 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2685 get_local_syms (bfd
*output_bfd
, bfd
*input_bfd
, struct bfd_link_info
*info
)
2687 unsigned int bfd_indx
;
2688 Elf_Internal_Sym
*local_syms
, **all_local_syms
;
2689 int stub_changed
= 0;
2690 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2695 /* We want to read in symbol extension records only once. To do this
2696 we need to read in the local symbols in parallel and save them for
2697 later use; so hold pointers to the local symbols in an array. */
2698 bfd_size_type amt
= sizeof (Elf_Internal_Sym
*) * htab
->bfd_count
;
2699 all_local_syms
= bfd_zmalloc (amt
);
2700 htab
->all_local_syms
= all_local_syms
;
2701 if (all_local_syms
== NULL
)
2704 /* Walk over all the input BFDs, swapping in local symbols.
2705 If we are creating a shared library, create hash entries for the
2709 input_bfd
= input_bfd
->link_next
, bfd_indx
++)
2711 Elf_Internal_Shdr
*symtab_hdr
;
2713 /* We'll need the symbol table in a second. */
2714 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2715 if (symtab_hdr
->sh_info
== 0)
2718 /* We need an array of the local symbols attached to the input bfd. */
2719 local_syms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
2720 if (local_syms
== NULL
)
2722 local_syms
= bfd_elf_get_elf_syms (input_bfd
, symtab_hdr
,
2723 symtab_hdr
->sh_info
, 0,
2725 /* Cache them for elf_link_input_bfd. */
2726 symtab_hdr
->contents
= (unsigned char *) local_syms
;
2728 if (local_syms
== NULL
)
2731 all_local_syms
[bfd_indx
] = local_syms
;
2733 if (info
->shared
&& htab
->multi_subspace
)
2735 struct elf_link_hash_entry
**eh_syms
;
2736 struct elf_link_hash_entry
**eh_symend
;
2737 unsigned int symcount
;
2739 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
2740 - symtab_hdr
->sh_info
);
2741 eh_syms
= (struct elf_link_hash_entry
**) elf_sym_hashes (input_bfd
);
2742 eh_symend
= (struct elf_link_hash_entry
**) (eh_syms
+ symcount
);
2744 /* Look through the global syms for functions; We need to
2745 build export stubs for all globally visible functions. */
2746 for (; eh_syms
< eh_symend
; eh_syms
++)
2748 struct elf32_hppa_link_hash_entry
*hh
;
2750 hh
= hppa_elf_hash_entry (*eh_syms
);
2752 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
2753 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
2754 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
2756 /* At this point in the link, undefined syms have been
2757 resolved, so we need to check that the symbol was
2758 defined in this BFD. */
2759 if ((hh
->eh
.root
.type
== bfd_link_hash_defined
2760 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)
2761 && hh
->eh
.type
== STT_FUNC
2762 && hh
->eh
.root
.u
.def
.section
->output_section
!= NULL
2763 && (hh
->eh
.root
.u
.def
.section
->output_section
->owner
2765 && hh
->eh
.root
.u
.def
.section
->owner
== input_bfd
2766 && hh
->eh
.def_regular
2767 && !hh
->eh
.forced_local
2768 && ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
)
2771 const char *stub_name
;
2772 struct elf32_hppa_stub_hash_entry
*hsh
;
2774 sec
= hh
->eh
.root
.u
.def
.section
;
2775 stub_name
= hh_name (hh
);
2776 hsh
= hppa_stub_hash_lookup (&htab
->bstab
,
2781 hsh
= hppa_add_stub (stub_name
, sec
, htab
);
2785 hsh
->target_value
= hh
->eh
.root
.u
.def
.value
;
2786 hsh
->target_section
= hh
->eh
.root
.u
.def
.section
;
2787 hsh
->stub_type
= hppa_stub_export
;
2793 (*_bfd_error_handler
) (_("%B: duplicate export stub %s"),
2802 return stub_changed
;
2805 /* Determine and set the size of the stub section for a final link.
2807 The basic idea here is to examine all the relocations looking for
2808 PC-relative calls to a target that is unreachable with a "bl"
2812 elf32_hppa_size_stubs
2813 (bfd
*output_bfd
, bfd
*stub_bfd
, struct bfd_link_info
*info
,
2814 bfd_boolean multi_subspace
, bfd_signed_vma group_size
,
2815 asection
* (*add_stub_section
) (const char *, asection
*),
2816 void (*layout_sections_again
) (void))
2818 bfd_size_type stub_group_size
;
2819 bfd_boolean stubs_always_before_branch
;
2820 bfd_boolean stub_changed
;
2821 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2826 /* Stash our params away. */
2827 htab
->stub_bfd
= stub_bfd
;
2828 htab
->multi_subspace
= multi_subspace
;
2829 htab
->add_stub_section
= add_stub_section
;
2830 htab
->layout_sections_again
= layout_sections_again
;
2831 stubs_always_before_branch
= group_size
< 0;
2833 stub_group_size
= -group_size
;
2835 stub_group_size
= group_size
;
2836 if (stub_group_size
== 1)
2838 /* Default values. */
2839 if (stubs_always_before_branch
)
2841 stub_group_size
= 7680000;
2842 if (htab
->has_17bit_branch
|| htab
->multi_subspace
)
2843 stub_group_size
= 240000;
2844 if (htab
->has_12bit_branch
)
2845 stub_group_size
= 7500;
2849 stub_group_size
= 6971392;
2850 if (htab
->has_17bit_branch
|| htab
->multi_subspace
)
2851 stub_group_size
= 217856;
2852 if (htab
->has_12bit_branch
)
2853 stub_group_size
= 6808;
2857 group_sections (htab
, stub_group_size
, stubs_always_before_branch
);
2859 switch (get_local_syms (output_bfd
, info
->input_bfds
, info
))
2862 if (htab
->all_local_syms
)
2863 goto error_ret_free_local
;
2867 stub_changed
= FALSE
;
2871 stub_changed
= TRUE
;
2878 unsigned int bfd_indx
;
2881 for (input_bfd
= info
->input_bfds
, bfd_indx
= 0;
2883 input_bfd
= input_bfd
->link_next
, bfd_indx
++)
2885 Elf_Internal_Shdr
*symtab_hdr
;
2887 Elf_Internal_Sym
*local_syms
;
2889 /* We'll need the symbol table in a second. */
2890 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2891 if (symtab_hdr
->sh_info
== 0)
2894 local_syms
= htab
->all_local_syms
[bfd_indx
];
2896 /* Walk over each section attached to the input bfd. */
2897 for (section
= input_bfd
->sections
;
2899 section
= section
->next
)
2901 Elf_Internal_Rela
*internal_relocs
, *irelaend
, *irela
;
2903 /* If there aren't any relocs, then there's nothing more
2905 if ((section
->flags
& SEC_RELOC
) == 0
2906 || section
->reloc_count
== 0)
2909 /* If this section is a link-once section that will be
2910 discarded, then don't create any stubs. */
2911 if (section
->output_section
== NULL
2912 || section
->output_section
->owner
!= output_bfd
)
2915 /* Get the relocs. */
2917 = _bfd_elf_link_read_relocs (input_bfd
, section
, NULL
, NULL
,
2919 if (internal_relocs
== NULL
)
2920 goto error_ret_free_local
;
2922 /* Now examine each relocation. */
2923 irela
= internal_relocs
;
2924 irelaend
= irela
+ section
->reloc_count
;
2925 for (; irela
< irelaend
; irela
++)
2927 unsigned int r_type
, r_indx
;
2928 enum elf32_hppa_stub_type stub_type
;
2929 struct elf32_hppa_stub_hash_entry
*hsh
;
2932 bfd_vma destination
;
2933 struct elf32_hppa_link_hash_entry
*hh
;
2935 const asection
*id_sec
;
2937 r_type
= ELF32_R_TYPE (irela
->r_info
);
2938 r_indx
= ELF32_R_SYM (irela
->r_info
);
2940 if (r_type
>= (unsigned int) R_PARISC_UNIMPLEMENTED
)
2942 bfd_set_error (bfd_error_bad_value
);
2943 error_ret_free_internal
:
2944 if (elf_section_data (section
)->relocs
== NULL
)
2945 free (internal_relocs
);
2946 goto error_ret_free_local
;
2949 /* Only look for stubs on call instructions. */
2950 if (r_type
!= (unsigned int) R_PARISC_PCREL12F
2951 && r_type
!= (unsigned int) R_PARISC_PCREL17F
2952 && r_type
!= (unsigned int) R_PARISC_PCREL22F
)
2955 /* Now determine the call target, its name, value,
2961 if (r_indx
< symtab_hdr
->sh_info
)
2963 /* It's a local symbol. */
2964 Elf_Internal_Sym
*sym
;
2965 Elf_Internal_Shdr
*hdr
;
2968 sym
= local_syms
+ r_indx
;
2969 if (ELF_ST_TYPE (sym
->st_info
) != STT_SECTION
)
2970 sym_value
= sym
->st_value
;
2971 shndx
= sym
->st_shndx
;
2972 if (shndx
< elf_numsections (input_bfd
))
2974 hdr
= elf_elfsections (input_bfd
)[shndx
];
2975 sym_sec
= hdr
->bfd_section
;
2976 destination
= (sym_value
+ irela
->r_addend
2977 + sym_sec
->output_offset
2978 + sym_sec
->output_section
->vma
);
2983 /* It's an external symbol. */
2986 e_indx
= r_indx
- symtab_hdr
->sh_info
;
2987 hh
= hppa_elf_hash_entry (elf_sym_hashes (input_bfd
)[e_indx
]);
2989 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
2990 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
2991 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
2993 if (hh
->eh
.root
.type
== bfd_link_hash_defined
2994 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)
2996 sym_sec
= hh
->eh
.root
.u
.def
.section
;
2997 sym_value
= hh
->eh
.root
.u
.def
.value
;
2998 if (sym_sec
->output_section
!= NULL
)
2999 destination
= (sym_value
+ irela
->r_addend
3000 + sym_sec
->output_offset
3001 + sym_sec
->output_section
->vma
);
3003 else if (hh
->eh
.root
.type
== bfd_link_hash_undefweak
)
3008 else if (hh
->eh
.root
.type
== bfd_link_hash_undefined
)
3010 if (! (info
->unresolved_syms_in_objects
== RM_IGNORE
3011 && (ELF_ST_VISIBILITY (hh
->eh
.other
)
3013 && hh
->eh
.type
!= STT_PARISC_MILLI
))
3018 bfd_set_error (bfd_error_bad_value
);
3019 goto error_ret_free_internal
;
3023 /* Determine what (if any) linker stub is needed. */
3024 stub_type
= hppa_type_of_stub (section
, irela
, hh
,
3026 if (stub_type
== hppa_stub_none
)
3029 /* Support for grouping stub sections. */
3030 id_sec
= htab
->stub_group
[section
->id
].link_sec
;
3032 /* Get the name of this stub. */
3033 stub_name
= hppa_stub_name (id_sec
, sym_sec
, hh
, irela
);
3035 goto error_ret_free_internal
;
3037 hsh
= hppa_stub_hash_lookup (&htab
->bstab
,
3042 /* The proper stub has already been created. */
3047 hsh
= hppa_add_stub (stub_name
, section
, htab
);
3051 goto error_ret_free_internal
;
3054 hsh
->target_value
= sym_value
;
3055 hsh
->target_section
= sym_sec
;
3056 hsh
->stub_type
= stub_type
;
3059 if (stub_type
== hppa_stub_import
)
3060 hsh
->stub_type
= hppa_stub_import_shared
;
3061 else if (stub_type
== hppa_stub_long_branch
)
3062 hsh
->stub_type
= hppa_stub_long_branch_shared
;
3065 stub_changed
= TRUE
;
3068 /* We're done with the internal relocs, free them. */
3069 if (elf_section_data (section
)->relocs
== NULL
)
3070 free (internal_relocs
);
3077 /* OK, we've added some stubs. Find out the new size of the
3079 for (stub_sec
= htab
->stub_bfd
->sections
;
3081 stub_sec
= stub_sec
->next
)
3084 bfd_hash_traverse (&htab
->bstab
, hppa_size_one_stub
, htab
);
3086 /* Ask the linker to do its stuff. */
3087 (*htab
->layout_sections_again
) ();
3088 stub_changed
= FALSE
;
3091 free (htab
->all_local_syms
);
3094 error_ret_free_local
:
3095 free (htab
->all_local_syms
);
3099 /* For a final link, this function is called after we have sized the
3100 stubs to provide a value for __gp. */
3103 elf32_hppa_set_gp (bfd
*abfd
, struct bfd_link_info
*info
)
3105 struct bfd_link_hash_entry
*h
;
3106 asection
*sec
= NULL
;
3108 struct elf32_hppa_link_hash_table
*htab
;
3110 htab
= hppa_link_hash_table (info
);
3114 h
= bfd_link_hash_lookup (&htab
->etab
.root
, "$global$", FALSE
, FALSE
, FALSE
);
3117 && (h
->type
== bfd_link_hash_defined
3118 || h
->type
== bfd_link_hash_defweak
))
3120 gp_val
= h
->u
.def
.value
;
3121 sec
= h
->u
.def
.section
;
3125 asection
*splt
= bfd_get_section_by_name (abfd
, ".plt");
3126 asection
*sgot
= bfd_get_section_by_name (abfd
, ".got");
3128 /* Choose to point our LTP at, in this order, one of .plt, .got,
3129 or .data, if these sections exist. In the case of choosing
3130 .plt try to make the LTP ideal for addressing anywhere in the
3131 .plt or .got with a 14 bit signed offset. Typically, the end
3132 of the .plt is the start of the .got, so choose .plt + 0x2000
3133 if either the .plt or .got is larger than 0x2000. If both
3134 the .plt and .got are smaller than 0x2000, choose the end of
3135 the .plt section. */
3136 sec
= strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") == 0
3141 if (gp_val
> 0x2000 || (sgot
&& sgot
->size
> 0x2000))
3151 if (strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") != 0)
3153 /* We know we don't have a .plt. If .got is large,
3155 if (sec
->size
> 0x2000)
3161 /* No .plt or .got. Who cares what the LTP is? */
3162 sec
= bfd_get_section_by_name (abfd
, ".data");
3168 h
->type
= bfd_link_hash_defined
;
3169 h
->u
.def
.value
= gp_val
;
3171 h
->u
.def
.section
= sec
;
3173 h
->u
.def
.section
= bfd_abs_section_ptr
;
3177 if (sec
!= NULL
&& sec
->output_section
!= NULL
)
3178 gp_val
+= sec
->output_section
->vma
+ sec
->output_offset
;
3180 elf_gp (abfd
) = gp_val
;
3184 /* Build all the stubs associated with the current output file. The
3185 stubs are kept in a hash table attached to the main linker hash
3186 table. We also set up the .plt entries for statically linked PIC
3187 functions here. This function is called via hppaelf_finish in the
3191 elf32_hppa_build_stubs (struct bfd_link_info
*info
)
3194 struct bfd_hash_table
*table
;
3195 struct elf32_hppa_link_hash_table
*htab
;
3197 htab
= hppa_link_hash_table (info
);
3201 for (stub_sec
= htab
->stub_bfd
->sections
;
3203 stub_sec
= stub_sec
->next
)
3207 /* Allocate memory to hold the linker stubs. */
3208 size
= stub_sec
->size
;
3209 stub_sec
->contents
= bfd_zalloc (htab
->stub_bfd
, size
);
3210 if (stub_sec
->contents
== NULL
&& size
!= 0)
3215 /* Build the stubs as directed by the stub hash table. */
3216 table
= &htab
->bstab
;
3217 bfd_hash_traverse (table
, hppa_build_one_stub
, info
);
3222 /* Return the base vma address which should be subtracted from the real
3223 address when resolving a dtpoff relocation.
3224 This is PT_TLS segment p_vaddr. */
3227 dtpoff_base (struct bfd_link_info
*info
)
3229 /* If tls_sec is NULL, we should have signalled an error already. */
3230 if (elf_hash_table (info
)->tls_sec
== NULL
)
3232 return elf_hash_table (info
)->tls_sec
->vma
;
3235 /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3238 tpoff (struct bfd_link_info
*info
, bfd_vma address
)
3240 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
3242 /* If tls_sec is NULL, we should have signalled an error already. */
3243 if (htab
->tls_sec
== NULL
)
3245 /* hppa TLS ABI is variant I and static TLS block start just after
3246 tcbhead structure which has 2 pointer fields. */
3247 return (address
- htab
->tls_sec
->vma
3248 + align_power ((bfd_vma
) 8, htab
->tls_sec
->alignment_power
));
3251 /* Perform a final link. */
3254 elf32_hppa_final_link (bfd
*abfd
, struct bfd_link_info
*info
)
3256 /* Invoke the regular ELF linker to do all the work. */
3257 if (!bfd_elf_final_link (abfd
, info
))
3260 /* If we're producing a final executable, sort the contents of the
3262 if (info
->relocatable
)
3265 return elf_hppa_sort_unwind (abfd
);
3268 /* Record the lowest address for the data and text segments. */
3271 hppa_record_segment_addr (bfd
*abfd
, asection
*section
, void *data
)
3273 struct elf32_hppa_link_hash_table
*htab
;
3275 htab
= (struct elf32_hppa_link_hash_table
*) data
;
3279 if ((section
->flags
& (SEC_ALLOC
| SEC_LOAD
)) == (SEC_ALLOC
| SEC_LOAD
))
3282 Elf_Internal_Phdr
*p
;
3284 p
= _bfd_elf_find_segment_containing_section (abfd
, section
->output_section
);
3285 BFD_ASSERT (p
!= NULL
);
3288 if ((section
->flags
& SEC_READONLY
) != 0)
3290 if (value
< htab
->text_segment_base
)
3291 htab
->text_segment_base
= value
;
3295 if (value
< htab
->data_segment_base
)
3296 htab
->data_segment_base
= value
;
3301 /* Perform a relocation as part of a final link. */
3303 static bfd_reloc_status_type
3304 final_link_relocate (asection
*input_section
,
3306 const Elf_Internal_Rela
*rela
,
3308 struct elf32_hppa_link_hash_table
*htab
,
3310 struct elf32_hppa_link_hash_entry
*hh
,
3311 struct bfd_link_info
*info
)
3314 unsigned int r_type
= ELF32_R_TYPE (rela
->r_info
);
3315 unsigned int orig_r_type
= r_type
;
3316 reloc_howto_type
*howto
= elf_hppa_howto_table
+ r_type
;
3317 int r_format
= howto
->bitsize
;
3318 enum hppa_reloc_field_selector_type_alt r_field
;
3319 bfd
*input_bfd
= input_section
->owner
;
3320 bfd_vma offset
= rela
->r_offset
;
3321 bfd_vma max_branch_offset
= 0;
3322 bfd_byte
*hit_data
= contents
+ offset
;
3323 bfd_signed_vma addend
= rela
->r_addend
;
3325 struct elf32_hppa_stub_hash_entry
*hsh
= NULL
;
3328 if (r_type
== R_PARISC_NONE
)
3329 return bfd_reloc_ok
;
3331 insn
= bfd_get_32 (input_bfd
, hit_data
);
3333 /* Find out where we are and where we're going. */
3334 location
= (offset
+
3335 input_section
->output_offset
+
3336 input_section
->output_section
->vma
);
3338 /* If we are not building a shared library, convert DLTIND relocs to
3344 case R_PARISC_DLTIND21L
:
3345 case R_PARISC_TLS_GD21L
:
3346 case R_PARISC_TLS_LDM21L
:
3347 case R_PARISC_TLS_IE21L
:
3348 r_type
= R_PARISC_DPREL21L
;
3351 case R_PARISC_DLTIND14R
:
3352 case R_PARISC_TLS_GD14R
:
3353 case R_PARISC_TLS_LDM14R
:
3354 case R_PARISC_TLS_IE14R
:
3355 r_type
= R_PARISC_DPREL14R
;
3358 case R_PARISC_DLTIND14F
:
3359 r_type
= R_PARISC_DPREL14F
;
3366 case R_PARISC_PCREL12F
:
3367 case R_PARISC_PCREL17F
:
3368 case R_PARISC_PCREL22F
:
3369 /* If this call should go via the plt, find the import stub in
3372 || sym_sec
->output_section
== NULL
3374 && hh
->eh
.plt
.offset
!= (bfd_vma
) -1
3375 && hh
->eh
.dynindx
!= -1
3378 || !hh
->eh
.def_regular
3379 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)))
3381 hsh
= hppa_get_stub_entry (input_section
, sym_sec
,
3385 value
= (hsh
->stub_offset
3386 + hsh
->stub_sec
->output_offset
3387 + hsh
->stub_sec
->output_section
->vma
);
3390 else if (sym_sec
== NULL
&& hh
!= NULL
3391 && hh
->eh
.root
.type
== bfd_link_hash_undefweak
)
3393 /* It's OK if undefined weak. Calls to undefined weak
3394 symbols behave as if the "called" function
3395 immediately returns. We can thus call to a weak
3396 function without first checking whether the function
3402 return bfd_reloc_undefined
;
3406 case R_PARISC_PCREL21L
:
3407 case R_PARISC_PCREL17C
:
3408 case R_PARISC_PCREL17R
:
3409 case R_PARISC_PCREL14R
:
3410 case R_PARISC_PCREL14F
:
3411 case R_PARISC_PCREL32
:
3412 /* Make it a pc relative offset. */
3417 case R_PARISC_DPREL21L
:
3418 case R_PARISC_DPREL14R
:
3419 case R_PARISC_DPREL14F
:
3420 /* Convert instructions that use the linkage table pointer (r19) to
3421 instructions that use the global data pointer (dp). This is the
3422 most efficient way of using PIC code in an incomplete executable,
3423 but the user must follow the standard runtime conventions for
3424 accessing data for this to work. */
3425 if (orig_r_type
!= r_type
)
3427 if (r_type
== R_PARISC_DPREL21L
)
3429 /* GCC sometimes uses a register other than r19 for the
3430 operation, so we must convert any addil instruction
3431 that uses this relocation. */
3432 if ((insn
& 0xfc000000) == ((int) OP_ADDIL
<< 26))
3435 /* We must have a ldil instruction. It's too hard to find
3436 and convert the associated add instruction, so issue an
3438 (*_bfd_error_handler
)
3439 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3446 else if (r_type
== R_PARISC_DPREL14F
)
3448 /* This must be a format 1 load/store. Change the base
3450 insn
= (insn
& 0xfc1ffff) | (27 << 21);
3454 /* For all the DP relative relocations, we need to examine the symbol's
3455 section. If it has no section or if it's a code section, then
3456 "data pointer relative" makes no sense. In that case we don't
3457 adjust the "value", and for 21 bit addil instructions, we change the
3458 source addend register from %dp to %r0. This situation commonly
3459 arises for undefined weak symbols and when a variable's "constness"
3460 is declared differently from the way the variable is defined. For
3461 instance: "extern int foo" with foo defined as "const int foo". */
3462 if (sym_sec
== NULL
|| (sym_sec
->flags
& SEC_CODE
) != 0)
3464 if ((insn
& ((0x3f << 26) | (0x1f << 21)))
3465 == (((int) OP_ADDIL
<< 26) | (27 << 21)))
3467 insn
&= ~ (0x1f << 21);
3469 /* Now try to make things easy for the dynamic linker. */
3475 case R_PARISC_DLTIND21L
:
3476 case R_PARISC_DLTIND14R
:
3477 case R_PARISC_DLTIND14F
:
3478 case R_PARISC_TLS_GD21L
:
3479 case R_PARISC_TLS_LDM21L
:
3480 case R_PARISC_TLS_IE21L
:
3481 case R_PARISC_TLS_GD14R
:
3482 case R_PARISC_TLS_LDM14R
:
3483 case R_PARISC_TLS_IE14R
:
3484 value
-= elf_gp (input_section
->output_section
->owner
);
3487 case R_PARISC_SEGREL32
:
3488 if ((sym_sec
->flags
& SEC_CODE
) != 0)
3489 value
-= htab
->text_segment_base
;
3491 value
-= htab
->data_segment_base
;
3500 case R_PARISC_DIR32
:
3501 case R_PARISC_DIR14F
:
3502 case R_PARISC_DIR17F
:
3503 case R_PARISC_PCREL17C
:
3504 case R_PARISC_PCREL14F
:
3505 case R_PARISC_PCREL32
:
3506 case R_PARISC_DPREL14F
:
3507 case R_PARISC_PLABEL32
:
3508 case R_PARISC_DLTIND14F
:
3509 case R_PARISC_SEGBASE
:
3510 case R_PARISC_SEGREL32
:
3511 case R_PARISC_TLS_DTPMOD32
:
3512 case R_PARISC_TLS_DTPOFF32
:
3513 case R_PARISC_TLS_TPREL32
:
3517 case R_PARISC_DLTIND21L
:
3518 case R_PARISC_PCREL21L
:
3519 case R_PARISC_PLABEL21L
:
3523 case R_PARISC_DIR21L
:
3524 case R_PARISC_DPREL21L
:
3525 case R_PARISC_TLS_GD21L
:
3526 case R_PARISC_TLS_LDM21L
:
3527 case R_PARISC_TLS_LDO21L
:
3528 case R_PARISC_TLS_IE21L
:
3529 case R_PARISC_TLS_LE21L
:
3533 case R_PARISC_PCREL17R
:
3534 case R_PARISC_PCREL14R
:
3535 case R_PARISC_PLABEL14R
:
3536 case R_PARISC_DLTIND14R
:
3540 case R_PARISC_DIR17R
:
3541 case R_PARISC_DIR14R
:
3542 case R_PARISC_DPREL14R
:
3543 case R_PARISC_TLS_GD14R
:
3544 case R_PARISC_TLS_LDM14R
:
3545 case R_PARISC_TLS_LDO14R
:
3546 case R_PARISC_TLS_IE14R
:
3547 case R_PARISC_TLS_LE14R
:
3551 case R_PARISC_PCREL12F
:
3552 case R_PARISC_PCREL17F
:
3553 case R_PARISC_PCREL22F
:
3556 if (r_type
== (unsigned int) R_PARISC_PCREL17F
)
3558 max_branch_offset
= (1 << (17-1)) << 2;
3560 else if (r_type
== (unsigned int) R_PARISC_PCREL12F
)
3562 max_branch_offset
= (1 << (12-1)) << 2;
3566 max_branch_offset
= (1 << (22-1)) << 2;
3569 /* sym_sec is NULL on undefined weak syms or when shared on
3570 undefined syms. We've already checked for a stub for the
3571 shared undefined case. */
3572 if (sym_sec
== NULL
)
3575 /* If the branch is out of reach, then redirect the
3576 call to the local stub for this function. */
3577 if (value
+ addend
+ max_branch_offset
>= 2*max_branch_offset
)
3579 hsh
= hppa_get_stub_entry (input_section
, sym_sec
,
3582 return bfd_reloc_undefined
;
3584 /* Munge up the value and addend so that we call the stub
3585 rather than the procedure directly. */
3586 value
= (hsh
->stub_offset
3587 + hsh
->stub_sec
->output_offset
3588 + hsh
->stub_sec
->output_section
->vma
3594 /* Something we don't know how to handle. */
3596 return bfd_reloc_notsupported
;
3599 /* Make sure we can reach the stub. */
3600 if (max_branch_offset
!= 0
3601 && value
+ addend
+ max_branch_offset
>= 2*max_branch_offset
)
3603 (*_bfd_error_handler
)
3604 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3608 hsh
->bh_root
.string
);
3609 bfd_set_error (bfd_error_bad_value
);
3610 return bfd_reloc_notsupported
;
3613 val
= hppa_field_adjust (value
, addend
, r_field
);
3617 case R_PARISC_PCREL12F
:
3618 case R_PARISC_PCREL17C
:
3619 case R_PARISC_PCREL17F
:
3620 case R_PARISC_PCREL17R
:
3621 case R_PARISC_PCREL22F
:
3622 case R_PARISC_DIR17F
:
3623 case R_PARISC_DIR17R
:
3624 /* This is a branch. Divide the offset by four.
3625 Note that we need to decide whether it's a branch or
3626 otherwise by inspecting the reloc. Inspecting insn won't
3627 work as insn might be from a .word directive. */
3635 insn
= hppa_rebuild_insn (insn
, val
, r_format
);
3637 /* Update the instruction word. */
3638 bfd_put_32 (input_bfd
, (bfd_vma
) insn
, hit_data
);
3639 return bfd_reloc_ok
;
3642 /* Relocate an HPPA ELF section. */
3645 elf32_hppa_relocate_section (bfd
*output_bfd
,
3646 struct bfd_link_info
*info
,
3648 asection
*input_section
,
3650 Elf_Internal_Rela
*relocs
,
3651 Elf_Internal_Sym
*local_syms
,
3652 asection
**local_sections
)
3654 bfd_vma
*local_got_offsets
;
3655 struct elf32_hppa_link_hash_table
*htab
;
3656 Elf_Internal_Shdr
*symtab_hdr
;
3657 Elf_Internal_Rela
*rela
;
3658 Elf_Internal_Rela
*relend
;
3660 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3662 htab
= hppa_link_hash_table (info
);
3666 local_got_offsets
= elf_local_got_offsets (input_bfd
);
3669 relend
= relocs
+ input_section
->reloc_count
;
3670 for (; rela
< relend
; rela
++)
3672 unsigned int r_type
;
3673 reloc_howto_type
*howto
;
3674 unsigned int r_symndx
;
3675 struct elf32_hppa_link_hash_entry
*hh
;
3676 Elf_Internal_Sym
*sym
;
3679 bfd_reloc_status_type rstatus
;
3680 const char *sym_name
;
3682 bfd_boolean warned_undef
;
3684 r_type
= ELF32_R_TYPE (rela
->r_info
);
3685 if (r_type
>= (unsigned int) R_PARISC_UNIMPLEMENTED
)
3687 bfd_set_error (bfd_error_bad_value
);
3690 if (r_type
== (unsigned int) R_PARISC_GNU_VTENTRY
3691 || r_type
== (unsigned int) R_PARISC_GNU_VTINHERIT
)
3694 r_symndx
= ELF32_R_SYM (rela
->r_info
);
3698 warned_undef
= FALSE
;
3699 if (r_symndx
< symtab_hdr
->sh_info
)
3701 /* This is a local symbol, h defaults to NULL. */
3702 sym
= local_syms
+ r_symndx
;
3703 sym_sec
= local_sections
[r_symndx
];
3704 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sym_sec
, rela
);
3708 struct elf_link_hash_entry
*eh
;
3709 bfd_boolean unresolved_reloc
;
3710 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
3712 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rela
,
3713 r_symndx
, symtab_hdr
, sym_hashes
,
3714 eh
, sym_sec
, relocation
,
3715 unresolved_reloc
, warned_undef
);
3717 if (!info
->relocatable
3719 && eh
->root
.type
!= bfd_link_hash_defined
3720 && eh
->root
.type
!= bfd_link_hash_defweak
3721 && eh
->root
.type
!= bfd_link_hash_undefweak
)
3723 if (info
->unresolved_syms_in_objects
== RM_IGNORE
3724 && ELF_ST_VISIBILITY (eh
->other
) == STV_DEFAULT
3725 && eh
->type
== STT_PARISC_MILLI
)
3727 if (! info
->callbacks
->undefined_symbol
3728 (info
, eh_name (eh
), input_bfd
,
3729 input_section
, rela
->r_offset
, FALSE
))
3731 warned_undef
= TRUE
;
3734 hh
= hppa_elf_hash_entry (eh
);
3737 if (sym_sec
!= NULL
&& discarded_section (sym_sec
))
3738 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
3740 elf_hppa_howto_table
+ r_type
, 0,
3743 if (info
->relocatable
)
3746 /* Do any required modifications to the relocation value, and
3747 determine what types of dynamic info we need to output, if
3752 case R_PARISC_DLTIND14F
:
3753 case R_PARISC_DLTIND14R
:
3754 case R_PARISC_DLTIND21L
:
3757 bfd_boolean do_got
= 0;
3759 /* Relocation is to the entry for this symbol in the
3760 global offset table. */
3765 off
= hh
->eh
.got
.offset
;
3766 dyn
= htab
->etab
.dynamic_sections_created
;
3767 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
,
3770 /* If we aren't going to call finish_dynamic_symbol,
3771 then we need to handle initialisation of the .got
3772 entry and create needed relocs here. Since the
3773 offset must always be a multiple of 4, we use the
3774 least significant bit to record whether we have
3775 initialised it already. */
3780 hh
->eh
.got
.offset
|= 1;
3787 /* Local symbol case. */
3788 if (local_got_offsets
== NULL
)
3791 off
= local_got_offsets
[r_symndx
];
3793 /* The offset must always be a multiple of 4. We use
3794 the least significant bit to record whether we have
3795 already generated the necessary reloc. */
3800 local_got_offsets
[r_symndx
] |= 1;
3809 /* Output a dynamic relocation for this GOT entry.
3810 In this case it is relative to the base of the
3811 object because the symbol index is zero. */
3812 Elf_Internal_Rela outrel
;
3814 asection
*sec
= htab
->srelgot
;
3816 outrel
.r_offset
= (off
3817 + htab
->sgot
->output_offset
3818 + htab
->sgot
->output_section
->vma
);
3819 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_DIR32
);
3820 outrel
.r_addend
= relocation
;
3821 loc
= sec
->contents
;
3822 loc
+= sec
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3823 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3826 bfd_put_32 (output_bfd
, relocation
,
3827 htab
->sgot
->contents
+ off
);
3830 if (off
>= (bfd_vma
) -2)
3833 /* Add the base of the GOT to the relocation value. */
3835 + htab
->sgot
->output_offset
3836 + htab
->sgot
->output_section
->vma
);
3840 case R_PARISC_SEGREL32
:
3841 /* If this is the first SEGREL relocation, then initialize
3842 the segment base values. */
3843 if (htab
->text_segment_base
== (bfd_vma
) -1)
3844 bfd_map_over_sections (output_bfd
, hppa_record_segment_addr
, htab
);
3847 case R_PARISC_PLABEL14R
:
3848 case R_PARISC_PLABEL21L
:
3849 case R_PARISC_PLABEL32
:
3850 if (htab
->etab
.dynamic_sections_created
)
3853 bfd_boolean do_plt
= 0;
3854 /* If we have a global symbol with a PLT slot, then
3855 redirect this relocation to it. */
3858 off
= hh
->eh
.plt
.offset
;
3859 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info
->shared
,
3862 /* In a non-shared link, adjust_dynamic_symbols
3863 isn't called for symbols forced local. We
3864 need to write out the plt entry here. */
3869 hh
->eh
.plt
.offset
|= 1;
3876 bfd_vma
*local_plt_offsets
;
3878 if (local_got_offsets
== NULL
)
3881 local_plt_offsets
= local_got_offsets
+ symtab_hdr
->sh_info
;
3882 off
= local_plt_offsets
[r_symndx
];
3884 /* As for the local .got entry case, we use the last
3885 bit to record whether we've already initialised
3886 this local .plt entry. */
3891 local_plt_offsets
[r_symndx
] |= 1;
3900 /* Output a dynamic IPLT relocation for this
3902 Elf_Internal_Rela outrel
;
3904 asection
*s
= htab
->srelplt
;
3906 outrel
.r_offset
= (off
3907 + htab
->splt
->output_offset
3908 + htab
->splt
->output_section
->vma
);
3909 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_IPLT
);
3910 outrel
.r_addend
= relocation
;
3912 loc
+= s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3913 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3917 bfd_put_32 (output_bfd
,
3919 htab
->splt
->contents
+ off
);
3920 bfd_put_32 (output_bfd
,
3921 elf_gp (htab
->splt
->output_section
->owner
),
3922 htab
->splt
->contents
+ off
+ 4);
3926 if (off
>= (bfd_vma
) -2)
3929 /* PLABELs contain function pointers. Relocation is to
3930 the entry for the function in the .plt. The magic +2
3931 offset signals to $$dyncall that the function pointer
3932 is in the .plt and thus has a gp pointer too.
3933 Exception: Undefined PLABELs should have a value of
3936 || (hh
->eh
.root
.type
!= bfd_link_hash_undefweak
3937 && hh
->eh
.root
.type
!= bfd_link_hash_undefined
))
3940 + htab
->splt
->output_offset
3941 + htab
->splt
->output_section
->vma
3946 /* Fall through and possibly emit a dynamic relocation. */
3948 case R_PARISC_DIR17F
:
3949 case R_PARISC_DIR17R
:
3950 case R_PARISC_DIR14F
:
3951 case R_PARISC_DIR14R
:
3952 case R_PARISC_DIR21L
:
3953 case R_PARISC_DPREL14F
:
3954 case R_PARISC_DPREL14R
:
3955 case R_PARISC_DPREL21L
:
3956 case R_PARISC_DIR32
:
3957 if ((input_section
->flags
& SEC_ALLOC
) == 0)
3960 /* The reloc types handled here and this conditional
3961 expression must match the code in ..check_relocs and
3962 allocate_dynrelocs. ie. We need exactly the same condition
3963 as in ..check_relocs, with some extra conditions (dynindx
3964 test in this case) to cater for relocs removed by
3965 allocate_dynrelocs. If you squint, the non-shared test
3966 here does indeed match the one in ..check_relocs, the
3967 difference being that here we test DEF_DYNAMIC as well as
3968 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3969 which is why we can't use just that test here.
3970 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3971 there all files have not been loaded. */
3974 || ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
3975 || hh
->eh
.root
.type
!= bfd_link_hash_undefweak
)
3976 && (IS_ABSOLUTE_RELOC (r_type
)
3977 || !SYMBOL_CALLS_LOCAL (info
, &hh
->eh
)))
3980 && hh
->eh
.dynindx
!= -1
3981 && !hh
->eh
.non_got_ref
3982 && ((ELIMINATE_COPY_RELOCS
3983 && hh
->eh
.def_dynamic
3984 && !hh
->eh
.def_regular
)
3985 || hh
->eh
.root
.type
== bfd_link_hash_undefweak
3986 || hh
->eh
.root
.type
== bfd_link_hash_undefined
)))
3988 Elf_Internal_Rela outrel
;
3993 /* When generating a shared object, these relocations
3994 are copied into the output file to be resolved at run
3997 outrel
.r_addend
= rela
->r_addend
;
3999 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
4001 skip
= (outrel
.r_offset
== (bfd_vma
) -1
4002 || outrel
.r_offset
== (bfd_vma
) -2);
4003 outrel
.r_offset
+= (input_section
->output_offset
4004 + input_section
->output_section
->vma
);
4008 memset (&outrel
, 0, sizeof (outrel
));
4011 && hh
->eh
.dynindx
!= -1
4013 || !IS_ABSOLUTE_RELOC (r_type
)
4016 || !hh
->eh
.def_regular
))
4018 outrel
.r_info
= ELF32_R_INFO (hh
->eh
.dynindx
, r_type
);
4020 else /* It's a local symbol, or one marked to become local. */
4024 /* Add the absolute offset of the symbol. */
4025 outrel
.r_addend
+= relocation
;
4027 /* Global plabels need to be processed by the
4028 dynamic linker so that functions have at most one
4029 fptr. For this reason, we need to differentiate
4030 between global and local plabels, which we do by
4031 providing the function symbol for a global plabel
4032 reloc, and no symbol for local plabels. */
4035 && sym_sec
->output_section
!= NULL
4036 && ! bfd_is_abs_section (sym_sec
))
4040 osec
= sym_sec
->output_section
;
4041 indx
= elf_section_data (osec
)->dynindx
;
4044 osec
= htab
->etab
.text_index_section
;
4045 indx
= elf_section_data (osec
)->dynindx
;
4047 BFD_ASSERT (indx
!= 0);
4049 /* We are turning this relocation into one
4050 against a section symbol, so subtract out the
4051 output section's address but not the offset
4052 of the input section in the output section. */
4053 outrel
.r_addend
-= osec
->vma
;
4056 outrel
.r_info
= ELF32_R_INFO (indx
, r_type
);
4058 sreloc
= elf_section_data (input_section
)->sreloc
;
4062 loc
= sreloc
->contents
;
4063 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4064 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4068 case R_PARISC_TLS_LDM21L
:
4069 case R_PARISC_TLS_LDM14R
:
4073 off
= htab
->tls_ldm_got
.offset
;
4078 Elf_Internal_Rela outrel
;
4081 outrel
.r_offset
= (off
4082 + htab
->sgot
->output_section
->vma
4083 + htab
->sgot
->output_offset
);
4084 outrel
.r_addend
= 0;
4085 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32
);
4086 loc
= htab
->srelgot
->contents
;
4087 loc
+= htab
->srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4089 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4090 htab
->tls_ldm_got
.offset
|= 1;
4093 /* Add the base of the GOT to the relocation value. */
4095 + htab
->sgot
->output_offset
4096 + htab
->sgot
->output_section
->vma
);
4101 case R_PARISC_TLS_LDO21L
:
4102 case R_PARISC_TLS_LDO14R
:
4103 relocation
-= dtpoff_base (info
);
4106 case R_PARISC_TLS_GD21L
:
4107 case R_PARISC_TLS_GD14R
:
4108 case R_PARISC_TLS_IE21L
:
4109 case R_PARISC_TLS_IE14R
:
4119 dyn
= htab
->etab
.dynamic_sections_created
;
4121 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, &hh
->eh
)
4123 || !SYMBOL_REFERENCES_LOCAL (info
, &hh
->eh
)))
4125 indx
= hh
->eh
.dynindx
;
4127 off
= hh
->eh
.got
.offset
;
4128 tls_type
= hh
->tls_type
;
4132 off
= local_got_offsets
[r_symndx
];
4133 tls_type
= hppa_elf_local_got_tls_type (input_bfd
)[r_symndx
];
4136 if (tls_type
== GOT_UNKNOWN
)
4143 bfd_boolean need_relocs
= FALSE
;
4144 Elf_Internal_Rela outrel
;
4145 bfd_byte
*loc
= NULL
;
4148 /* The GOT entries have not been initialized yet. Do it
4149 now, and emit any relocations. If both an IE GOT and a
4150 GD GOT are necessary, we emit the GD first. */
4152 if ((info
->shared
|| indx
!= 0)
4154 || ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
4155 || hh
->eh
.root
.type
!= bfd_link_hash_undefweak
))
4158 loc
= htab
->srelgot
->contents
;
4159 /* FIXME (CAO): Should this be reloc_count++ ? */
4160 loc
+= htab
->srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
4163 if (tls_type
& GOT_TLS_GD
)
4167 outrel
.r_offset
= (cur_off
4168 + htab
->sgot
->output_section
->vma
4169 + htab
->sgot
->output_offset
);
4170 outrel
.r_info
= ELF32_R_INFO (indx
,R_PARISC_TLS_DTPMOD32
);
4171 outrel
.r_addend
= 0;
4172 bfd_put_32 (output_bfd
, 0, htab
->sgot
->contents
+ cur_off
);
4173 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4174 htab
->srelgot
->reloc_count
++;
4175 loc
+= sizeof (Elf32_External_Rela
);
4178 bfd_put_32 (output_bfd
, relocation
- dtpoff_base (info
),
4179 htab
->sgot
->contents
+ cur_off
+ 4);
4182 bfd_put_32 (output_bfd
, 0,
4183 htab
->sgot
->contents
+ cur_off
+ 4);
4184 outrel
.r_info
= ELF32_R_INFO (indx
, R_PARISC_TLS_DTPOFF32
);
4185 outrel
.r_offset
+= 4;
4186 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,loc
);
4187 htab
->srelgot
->reloc_count
++;
4188 loc
+= sizeof (Elf32_External_Rela
);
4193 /* If we are not emitting relocations for a
4194 general dynamic reference, then we must be in a
4195 static link or an executable link with the
4196 symbol binding locally. Mark it as belonging
4197 to module 1, the executable. */
4198 bfd_put_32 (output_bfd
, 1,
4199 htab
->sgot
->contents
+ cur_off
);
4200 bfd_put_32 (output_bfd
, relocation
- dtpoff_base (info
),
4201 htab
->sgot
->contents
+ cur_off
+ 4);
4208 if (tls_type
& GOT_TLS_IE
)
4212 outrel
.r_offset
= (cur_off
4213 + htab
->sgot
->output_section
->vma
4214 + htab
->sgot
->output_offset
);
4215 outrel
.r_info
= ELF32_R_INFO (indx
, R_PARISC_TLS_TPREL32
);
4218 outrel
.r_addend
= relocation
- dtpoff_base (info
);
4220 outrel
.r_addend
= 0;
4222 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4223 htab
->srelgot
->reloc_count
++;
4224 loc
+= sizeof (Elf32_External_Rela
);
4227 bfd_put_32 (output_bfd
, tpoff (info
, relocation
),
4228 htab
->sgot
->contents
+ cur_off
);
4234 hh
->eh
.got
.offset
|= 1;
4236 local_got_offsets
[r_symndx
] |= 1;
4239 if ((tls_type
& GOT_TLS_GD
)
4240 && r_type
!= R_PARISC_TLS_GD21L
4241 && r_type
!= R_PARISC_TLS_GD14R
)
4242 off
+= 2 * GOT_ENTRY_SIZE
;
4244 /* Add the base of the GOT to the relocation value. */
4246 + htab
->sgot
->output_offset
4247 + htab
->sgot
->output_section
->vma
);
4252 case R_PARISC_TLS_LE21L
:
4253 case R_PARISC_TLS_LE14R
:
4255 relocation
= tpoff (info
, relocation
);
4264 rstatus
= final_link_relocate (input_section
, contents
, rela
, relocation
,
4265 htab
, sym_sec
, hh
, info
);
4267 if (rstatus
== bfd_reloc_ok
)
4271 sym_name
= hh_name (hh
);
4274 sym_name
= bfd_elf_string_from_elf_section (input_bfd
,
4275 symtab_hdr
->sh_link
,
4277 if (sym_name
== NULL
)
4279 if (*sym_name
== '\0')
4280 sym_name
= bfd_section_name (input_bfd
, sym_sec
);
4283 howto
= elf_hppa_howto_table
+ r_type
;
4285 if (rstatus
== bfd_reloc_undefined
|| rstatus
== bfd_reloc_notsupported
)
4287 if (rstatus
== bfd_reloc_notsupported
|| !warned_undef
)
4289 (*_bfd_error_handler
)
4290 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4293 (long) rela
->r_offset
,
4296 bfd_set_error (bfd_error_bad_value
);
4302 if (!((*info
->callbacks
->reloc_overflow
)
4303 (info
, (hh
? &hh
->eh
.root
: NULL
), sym_name
, howto
->name
,
4304 (bfd_vma
) 0, input_bfd
, input_section
, rela
->r_offset
)))
4312 /* Finish up dynamic symbol handling. We set the contents of various
4313 dynamic sections here. */
4316 elf32_hppa_finish_dynamic_symbol (bfd
*output_bfd
,
4317 struct bfd_link_info
*info
,
4318 struct elf_link_hash_entry
*eh
,
4319 Elf_Internal_Sym
*sym
)
4321 struct elf32_hppa_link_hash_table
*htab
;
4322 Elf_Internal_Rela rela
;
4325 htab
= hppa_link_hash_table (info
);
4329 if (eh
->plt
.offset
!= (bfd_vma
) -1)
4333 if (eh
->plt
.offset
& 1)
4336 /* This symbol has an entry in the procedure linkage table. Set
4339 The format of a plt entry is
4344 if (eh
->root
.type
== bfd_link_hash_defined
4345 || eh
->root
.type
== bfd_link_hash_defweak
)
4347 value
= eh
->root
.u
.def
.value
;
4348 if (eh
->root
.u
.def
.section
->output_section
!= NULL
)
4349 value
+= (eh
->root
.u
.def
.section
->output_offset
4350 + eh
->root
.u
.def
.section
->output_section
->vma
);
4353 /* Create a dynamic IPLT relocation for this entry. */
4354 rela
.r_offset
= (eh
->plt
.offset
4355 + htab
->splt
->output_offset
4356 + htab
->splt
->output_section
->vma
);
4357 if (eh
->dynindx
!= -1)
4359 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_IPLT
);
4364 /* This symbol has been marked to become local, and is
4365 used by a plabel so must be kept in the .plt. */
4366 rela
.r_info
= ELF32_R_INFO (0, R_PARISC_IPLT
);
4367 rela
.r_addend
= value
;
4370 loc
= htab
->srelplt
->contents
;
4371 loc
+= htab
->srelplt
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4372 bfd_elf32_swap_reloca_out (htab
->splt
->output_section
->owner
, &rela
, loc
);
4374 if (!eh
->def_regular
)
4376 /* Mark the symbol as undefined, rather than as defined in
4377 the .plt section. Leave the value alone. */
4378 sym
->st_shndx
= SHN_UNDEF
;
4382 if (eh
->got
.offset
!= (bfd_vma
) -1
4383 && (hppa_elf_hash_entry (eh
)->tls_type
& GOT_TLS_GD
) == 0
4384 && (hppa_elf_hash_entry (eh
)->tls_type
& GOT_TLS_IE
) == 0)
4386 /* This symbol has an entry in the global offset table. Set it
4389 rela
.r_offset
= ((eh
->got
.offset
&~ (bfd_vma
) 1)
4390 + htab
->sgot
->output_offset
4391 + htab
->sgot
->output_section
->vma
);
4393 /* If this is a -Bsymbolic link and the symbol is defined
4394 locally or was forced to be local because of a version file,
4395 we just want to emit a RELATIVE reloc. The entry in the
4396 global offset table will already have been initialized in the
4397 relocate_section function. */
4399 && (info
->symbolic
|| eh
->dynindx
== -1)
4402 rela
.r_info
= ELF32_R_INFO (0, R_PARISC_DIR32
);
4403 rela
.r_addend
= (eh
->root
.u
.def
.value
4404 + eh
->root
.u
.def
.section
->output_offset
4405 + eh
->root
.u
.def
.section
->output_section
->vma
);
4409 if ((eh
->got
.offset
& 1) != 0)
4412 bfd_put_32 (output_bfd
, 0, htab
->sgot
->contents
+ (eh
->got
.offset
& ~1));
4413 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_DIR32
);
4417 loc
= htab
->srelgot
->contents
;
4418 loc
+= htab
->srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4419 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4426 /* This symbol needs a copy reloc. Set it up. */
4428 if (! (eh
->dynindx
!= -1
4429 && (eh
->root
.type
== bfd_link_hash_defined
4430 || eh
->root
.type
== bfd_link_hash_defweak
)))
4433 sec
= htab
->srelbss
;
4435 rela
.r_offset
= (eh
->root
.u
.def
.value
4436 + eh
->root
.u
.def
.section
->output_offset
4437 + eh
->root
.u
.def
.section
->output_section
->vma
);
4439 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_COPY
);
4440 loc
= sec
->contents
+ sec
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4441 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4444 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4445 if (eh_name (eh
)[0] == '_'
4446 && (strcmp (eh_name (eh
), "_DYNAMIC") == 0
4447 || eh
== htab
->etab
.hgot
))
4449 sym
->st_shndx
= SHN_ABS
;
4455 /* Used to decide how to sort relocs in an optimal manner for the
4456 dynamic linker, before writing them out. */
4458 static enum elf_reloc_type_class
4459 elf32_hppa_reloc_type_class (const Elf_Internal_Rela
*rela
)
4461 /* Handle TLS relocs first; we don't want them to be marked
4462 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
4464 switch ((int) ELF32_R_TYPE (rela
->r_info
))
4466 case R_PARISC_TLS_DTPMOD32
:
4467 case R_PARISC_TLS_DTPOFF32
:
4468 case R_PARISC_TLS_TPREL32
:
4469 return reloc_class_normal
;
4472 if (ELF32_R_SYM (rela
->r_info
) == STN_UNDEF
)
4473 return reloc_class_relative
;
4475 switch ((int) ELF32_R_TYPE (rela
->r_info
))
4478 return reloc_class_plt
;
4480 return reloc_class_copy
;
4482 return reloc_class_normal
;
4486 /* Finish up the dynamic sections. */
4489 elf32_hppa_finish_dynamic_sections (bfd
*output_bfd
,
4490 struct bfd_link_info
*info
)
4493 struct elf32_hppa_link_hash_table
*htab
;
4497 htab
= hppa_link_hash_table (info
);
4501 dynobj
= htab
->etab
.dynobj
;
4504 /* A broken linker script might have discarded the dynamic sections.
4505 Catch this here so that we do not seg-fault later on. */
4506 if (sgot
!= NULL
&& bfd_is_abs_section (sgot
->output_section
))
4509 sdyn
= bfd_get_linker_section (dynobj
, ".dynamic");
4511 if (htab
->etab
.dynamic_sections_created
)
4513 Elf32_External_Dyn
*dyncon
, *dynconend
;
4518 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
4519 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
4520 for (; dyncon
< dynconend
; dyncon
++)
4522 Elf_Internal_Dyn dyn
;
4525 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4533 /* Use PLTGOT to set the GOT register. */
4534 dyn
.d_un
.d_ptr
= elf_gp (output_bfd
);
4539 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
4544 dyn
.d_un
.d_val
= s
->size
;
4548 /* Don't count procedure linkage table relocs in the
4549 overall reloc count. */
4553 dyn
.d_un
.d_val
-= s
->size
;
4557 /* We may not be using the standard ELF linker script.
4558 If .rela.plt is the first .rela section, we adjust
4559 DT_RELA to not include it. */
4563 if (dyn
.d_un
.d_ptr
!= s
->output_section
->vma
+ s
->output_offset
)
4565 dyn
.d_un
.d_ptr
+= s
->size
;
4569 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
4573 if (sgot
!= NULL
&& sgot
->size
!= 0)
4575 /* Fill in the first entry in the global offset table.
4576 We use it to point to our dynamic section, if we have one. */
4577 bfd_put_32 (output_bfd
,
4578 sdyn
? sdyn
->output_section
->vma
+ sdyn
->output_offset
: 0,
4581 /* The second entry is reserved for use by the dynamic linker. */
4582 memset (sgot
->contents
+ GOT_ENTRY_SIZE
, 0, GOT_ENTRY_SIZE
);
4584 /* Set .got entry size. */
4585 elf_section_data (sgot
->output_section
)
4586 ->this_hdr
.sh_entsize
= GOT_ENTRY_SIZE
;
4589 if (htab
->splt
!= NULL
&& htab
->splt
->size
!= 0)
4591 /* Set plt entry size. */
4592 elf_section_data (htab
->splt
->output_section
)
4593 ->this_hdr
.sh_entsize
= PLT_ENTRY_SIZE
;
4595 if (htab
->need_plt_stub
)
4597 /* Set up the .plt stub. */
4598 memcpy (htab
->splt
->contents
4599 + htab
->splt
->size
- sizeof (plt_stub
),
4600 plt_stub
, sizeof (plt_stub
));
4602 if ((htab
->splt
->output_offset
4603 + htab
->splt
->output_section
->vma
4605 != (sgot
->output_offset
4606 + sgot
->output_section
->vma
))
4608 (*_bfd_error_handler
)
4609 (_(".got section not immediately after .plt section"));
4618 /* Called when writing out an object file to decide the type of a
4621 elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym
*elf_sym
, int type
)
4623 if (ELF_ST_TYPE (elf_sym
->st_info
) == STT_PARISC_MILLI
)
4624 return STT_PARISC_MILLI
;
4629 /* Misc BFD support code. */
4630 #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4631 #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4632 #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4633 #define elf_info_to_howto elf_hppa_info_to_howto
4634 #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4636 /* Stuff for the BFD linker. */
4637 #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4638 #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4639 #define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free
4640 #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4641 #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4642 #define elf_backend_check_relocs elf32_hppa_check_relocs
4643 #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4644 #define elf_backend_fake_sections elf_hppa_fake_sections
4645 #define elf_backend_relocate_section elf32_hppa_relocate_section
4646 #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4647 #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4648 #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4649 #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4650 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4651 #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4652 #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
4653 #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4654 #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4655 #define elf_backend_object_p elf32_hppa_object_p
4656 #define elf_backend_final_write_processing elf_hppa_final_write_processing
4657 #define elf_backend_post_process_headers _bfd_elf_set_osabi
4658 #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4659 #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4660 #define elf_backend_action_discarded elf_hppa_action_discarded
4662 #define elf_backend_can_gc_sections 1
4663 #define elf_backend_can_refcount 1
4664 #define elf_backend_plt_alignment 2
4665 #define elf_backend_want_got_plt 0
4666 #define elf_backend_plt_readonly 0
4667 #define elf_backend_want_plt_sym 0
4668 #define elf_backend_got_header_size 8
4669 #define elf_backend_rela_normal 1
4671 #define TARGET_BIG_SYM bfd_elf32_hppa_vec
4672 #define TARGET_BIG_NAME "elf32-hppa"
4673 #define ELF_ARCH bfd_arch_hppa
4674 #define ELF_TARGET_ID HPPA32_ELF_DATA
4675 #define ELF_MACHINE_CODE EM_PARISC
4676 #define ELF_MAXPAGESIZE 0x1000
4677 #define ELF_OSABI ELFOSABI_HPUX
4678 #define elf32_bed elf32_hppa_hpux_bed
4680 #include "elf32-target.h"
4682 #undef TARGET_BIG_SYM
4683 #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec
4684 #undef TARGET_BIG_NAME
4685 #define TARGET_BIG_NAME "elf32-hppa-linux"
4687 #define ELF_OSABI ELFOSABI_GNU
4689 #define elf32_bed elf32_hppa_linux_bed
4691 #include "elf32-target.h"
4693 #undef TARGET_BIG_SYM
4694 #define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec
4695 #undef TARGET_BIG_NAME
4696 #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4698 #define ELF_OSABI ELFOSABI_NETBSD
4700 #define elf32_bed elf32_hppa_netbsd_bed
4702 #include "elf32-target.h"