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 Free Software Foundation, Inc.
6 Center for Software Science
7 Department of Computer Science
9 Largely rewritten by Alan Modra <alan@linuxcare.com.au>
10 Naming cleanup by Carlos O'Donell <carlos@systemhalted.org>
11 TLS support written by Randolph Chung <tausq@debian.org>
13 This file is part of BFD, the Binary File Descriptor library.
15 This program is free software; you can redistribute it and/or modify
16 it under the terms of the GNU General Public License as published by
17 the Free Software Foundation; either version 3 of the License, or
18 (at your option) any later version.
20 This program is distributed in the hope that it will be useful,
21 but WITHOUT ANY WARRANTY; without even the implied warranty of
22 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 GNU General Public License for more details.
25 You should have received a copy of the GNU General Public License
26 along with this program; if not, write to the Free Software
27 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
28 MA 02110-1301, USA. */
36 #include "elf32-hppa.h"
38 #include "elf32-hppa.h"
41 /* In order to gain some understanding of code in this file without
42 knowing all the intricate details of the linker, note the
45 Functions named elf32_hppa_* are called by external routines, other
46 functions are only called locally. elf32_hppa_* functions appear
47 in this file more or less in the order in which they are called
48 from external routines. eg. elf32_hppa_check_relocs is called
49 early in the link process, elf32_hppa_finish_dynamic_sections is
50 one of the last functions. */
52 /* We use two hash tables to hold information for linking PA ELF objects.
54 The first is the elf32_hppa_link_hash_table which is derived
55 from the standard ELF linker hash table. We use this as a place to
56 attach other hash tables and static information.
58 The second is the stub hash table which is derived from the
59 base BFD hash table. The stub hash table holds the information
60 necessary to build the linker stubs during a link.
62 There are a number of different stubs generated by the linker.
70 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
71 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
73 Import stub to call shared library routine from normal object file
74 (single sub-space version)
75 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
76 : ldw RR'lt_ptr+ltoff(%r1),%r21
78 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
80 Import stub to call shared library routine from shared library
81 (single sub-space version)
82 : addil LR'ltoff,%r19 ; get procedure entry point
83 : ldw RR'ltoff(%r1),%r21
85 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
87 Import stub to call shared library routine from normal object file
88 (multiple sub-space support)
89 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
90 : ldw RR'lt_ptr+ltoff(%r1),%r21
91 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
94 : be 0(%sr0,%r21) ; branch to target
95 : stw %rp,-24(%sp) ; save rp
97 Import stub to call shared library routine from shared library
98 (multiple sub-space support)
99 : addil LR'ltoff,%r19 ; get procedure entry point
100 : ldw RR'ltoff(%r1),%r21
101 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
104 : be 0(%sr0,%r21) ; branch to target
105 : stw %rp,-24(%sp) ; save rp
107 Export stub to return from shared lib routine (multiple sub-space support)
108 One of these is created for each exported procedure in a shared
109 library (and stored in the shared lib). Shared lib routines are
110 called via the first instruction in the export stub so that we can
111 do an inter-space return. Not required for single sub-space.
112 : bl,n X,%rp ; trap the return
114 : ldw -24(%sp),%rp ; restore the original rp
117 : be,n 0(%sr0,%rp) ; inter-space return. */
120 /* Variable names follow a coding style.
121 Please follow this (Apps Hungarian) style:
123 Structure/Variable Prefix
124 elf_link_hash_table "etab"
125 elf_link_hash_entry "eh"
127 elf32_hppa_link_hash_table "htab"
128 elf32_hppa_link_hash_entry "hh"
130 bfd_hash_table "btab"
133 bfd_hash_table containing stubs "bstab"
134 elf32_hppa_stub_hash_entry "hsh"
136 elf32_hppa_dyn_reloc_entry "hdh"
138 Always remember to use GNU Coding Style. */
140 #define PLT_ENTRY_SIZE 8
141 #define GOT_ENTRY_SIZE 4
142 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
144 static const bfd_byte plt_stub
[] =
146 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
147 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
148 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
149 #define PLT_STUB_ENTRY (3*4)
150 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
151 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
152 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
153 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
156 /* Section name for stubs is the associated section name plus this
158 #define STUB_SUFFIX ".stub"
160 /* We don't need to copy certain PC- or GP-relative dynamic relocs
161 into a shared object's dynamic section. All the relocs of the
162 limited class we are interested in, are absolute. */
163 #ifndef RELATIVE_DYNRELOCS
164 #define RELATIVE_DYNRELOCS 0
165 #define IS_ABSOLUTE_RELOC(r_type) 1
168 /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
169 copying dynamic variables from a shared lib into an app's dynbss
170 section, and instead use a dynamic relocation to point into the
172 #define ELIMINATE_COPY_RELOCS 1
174 enum elf32_hppa_stub_type
176 hppa_stub_long_branch
,
177 hppa_stub_long_branch_shared
,
179 hppa_stub_import_shared
,
184 struct elf32_hppa_stub_hash_entry
186 /* Base hash table entry structure. */
187 struct bfd_hash_entry bh_root
;
189 /* The stub section. */
192 /* Offset within stub_sec of the beginning of this stub. */
195 /* Given the symbol's value and its section we can determine its final
196 value when building the stubs (so the stub knows where to jump. */
197 bfd_vma target_value
;
198 asection
*target_section
;
200 enum elf32_hppa_stub_type stub_type
;
202 /* The symbol table entry, if any, that this was derived from. */
203 struct elf32_hppa_link_hash_entry
*hh
;
205 /* Where this stub is being called from, or, in the case of combined
206 stub sections, the first input section in the group. */
210 struct elf32_hppa_link_hash_entry
212 struct elf_link_hash_entry eh
;
214 /* A pointer to the most recently used stub hash entry against this
216 struct elf32_hppa_stub_hash_entry
*hsh_cache
;
218 /* Used to count relocations for delayed sizing of relocation
220 struct elf32_hppa_dyn_reloc_entry
222 /* Next relocation in the chain. */
223 struct elf32_hppa_dyn_reloc_entry
*hdh_next
;
225 /* The input section of the reloc. */
228 /* Number of relocs copied in this section. */
231 #if RELATIVE_DYNRELOCS
232 /* Number of relative relocs copied for the input section. */
233 bfd_size_type relative_count
;
239 GOT_UNKNOWN
= 0, GOT_NORMAL
= 1, GOT_TLS_GD
= 2, GOT_TLS_LDM
= 4, GOT_TLS_IE
= 8
242 /* Set if this symbol is used by a plabel reloc. */
243 unsigned int plabel
:1;
246 struct elf32_hppa_link_hash_table
248 /* The main hash table. */
249 struct elf_link_hash_table etab
;
251 /* The stub hash table. */
252 struct bfd_hash_table bstab
;
254 /* Linker stub bfd. */
257 /* Linker call-backs. */
258 asection
* (*add_stub_section
) (const char *, asection
*);
259 void (*layout_sections_again
) (void);
261 /* Array to keep track of which stub sections have been created, and
262 information on stub grouping. */
265 /* This is the section to which stubs in the group will be
268 /* The stub section. */
272 /* Assorted information used by elf32_hppa_size_stubs. */
273 unsigned int bfd_count
;
275 asection
**input_list
;
276 Elf_Internal_Sym
**all_local_syms
;
278 /* Short-cuts to get to dynamic linker sections. */
286 /* Used during a final link to store the base of the text and data
287 segments so that we can perform SEGREL relocations. */
288 bfd_vma text_segment_base
;
289 bfd_vma data_segment_base
;
291 /* Whether we support multiple sub-spaces for shared libs. */
292 unsigned int multi_subspace
:1;
294 /* Flags set when various size branches are detected. Used to
295 select suitable defaults for the stub group size. */
296 unsigned int has_12bit_branch
:1;
297 unsigned int has_17bit_branch
:1;
298 unsigned int has_22bit_branch
:1;
300 /* Set if we need a .plt stub to support lazy dynamic linking. */
301 unsigned int need_plt_stub
:1;
303 /* Small local sym to section mapping cache. */
304 struct sym_sec_cache sym_sec
;
306 /* Data for LDM relocations. */
309 bfd_signed_vma refcount
;
314 /* Various hash macros and functions. */
315 #define hppa_link_hash_table(p) \
316 ((struct elf32_hppa_link_hash_table *) ((p)->hash))
318 #define hppa_elf_hash_entry(ent) \
319 ((struct elf32_hppa_link_hash_entry *)(ent))
321 #define hppa_stub_hash_entry(ent) \
322 ((struct elf32_hppa_stub_hash_entry *)(ent))
324 #define hppa_stub_hash_lookup(table, string, create, copy) \
325 ((struct elf32_hppa_stub_hash_entry *) \
326 bfd_hash_lookup ((table), (string), (create), (copy)))
328 #define hppa_elf_local_got_tls_type(abfd) \
329 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
331 #define hh_name(hh) \
332 (hh ? hh->eh.root.root.string : "<undef>")
334 #define eh_name(eh) \
335 (eh ? eh->root.root.string : "<undef>")
337 /* Assorted hash table functions. */
339 /* Initialize an entry in the stub hash table. */
341 static struct bfd_hash_entry
*
342 stub_hash_newfunc (struct bfd_hash_entry
*entry
,
343 struct bfd_hash_table
*table
,
346 /* Allocate the structure if it has not already been allocated by a
350 entry
= bfd_hash_allocate (table
,
351 sizeof (struct elf32_hppa_stub_hash_entry
));
356 /* Call the allocation method of the superclass. */
357 entry
= bfd_hash_newfunc (entry
, table
, string
);
360 struct elf32_hppa_stub_hash_entry
*hsh
;
362 /* Initialize the local fields. */
363 hsh
= hppa_stub_hash_entry (entry
);
364 hsh
->stub_sec
= NULL
;
365 hsh
->stub_offset
= 0;
366 hsh
->target_value
= 0;
367 hsh
->target_section
= NULL
;
368 hsh
->stub_type
= hppa_stub_long_branch
;
376 /* Initialize an entry in the link hash table. */
378 static struct bfd_hash_entry
*
379 hppa_link_hash_newfunc (struct bfd_hash_entry
*entry
,
380 struct bfd_hash_table
*table
,
383 /* Allocate the structure if it has not already been allocated by a
387 entry
= bfd_hash_allocate (table
,
388 sizeof (struct elf32_hppa_link_hash_entry
));
393 /* Call the allocation method of the superclass. */
394 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
397 struct elf32_hppa_link_hash_entry
*hh
;
399 /* Initialize the local fields. */
400 hh
= hppa_elf_hash_entry (entry
);
401 hh
->hsh_cache
= NULL
;
402 hh
->dyn_relocs
= NULL
;
404 hh
->tls_type
= GOT_UNKNOWN
;
410 /* Create the derived linker hash table. The PA ELF port uses the derived
411 hash table to keep information specific to the PA ELF linker (without
412 using static variables). */
414 static struct bfd_link_hash_table
*
415 elf32_hppa_link_hash_table_create (bfd
*abfd
)
417 struct elf32_hppa_link_hash_table
*htab
;
418 bfd_size_type amt
= sizeof (*htab
);
420 htab
= bfd_malloc (amt
);
424 if (!_bfd_elf_link_hash_table_init (&htab
->etab
, abfd
, hppa_link_hash_newfunc
,
425 sizeof (struct elf32_hppa_link_hash_entry
)))
431 /* Init the stub hash table too. */
432 if (!bfd_hash_table_init (&htab
->bstab
, stub_hash_newfunc
,
433 sizeof (struct elf32_hppa_stub_hash_entry
)))
436 htab
->stub_bfd
= NULL
;
437 htab
->add_stub_section
= NULL
;
438 htab
->layout_sections_again
= NULL
;
439 htab
->stub_group
= NULL
;
441 htab
->srelgot
= NULL
;
443 htab
->srelplt
= NULL
;
444 htab
->sdynbss
= NULL
;
445 htab
->srelbss
= NULL
;
446 htab
->text_segment_base
= (bfd_vma
) -1;
447 htab
->data_segment_base
= (bfd_vma
) -1;
448 htab
->multi_subspace
= 0;
449 htab
->has_12bit_branch
= 0;
450 htab
->has_17bit_branch
= 0;
451 htab
->has_22bit_branch
= 0;
452 htab
->need_plt_stub
= 0;
453 htab
->sym_sec
.abfd
= NULL
;
454 htab
->tls_ldm_got
.refcount
= 0;
456 return &htab
->etab
.root
;
459 /* Free the derived linker hash table. */
462 elf32_hppa_link_hash_table_free (struct bfd_link_hash_table
*btab
)
464 struct elf32_hppa_link_hash_table
*htab
465 = (struct elf32_hppa_link_hash_table
*) btab
;
467 bfd_hash_table_free (&htab
->bstab
);
468 _bfd_generic_link_hash_table_free (btab
);
471 /* Build a name for an entry in the stub hash table. */
474 hppa_stub_name (const asection
*input_section
,
475 const asection
*sym_sec
,
476 const struct elf32_hppa_link_hash_entry
*hh
,
477 const Elf_Internal_Rela
*rela
)
484 len
= 8 + 1 + strlen (hh_name (hh
)) + 1 + 8 + 1;
485 stub_name
= bfd_malloc (len
);
486 if (stub_name
!= NULL
)
487 sprintf (stub_name
, "%08x_%s+%x",
488 input_section
->id
& 0xffffffff,
490 (int) rela
->r_addend
& 0xffffffff);
494 len
= 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
495 stub_name
= bfd_malloc (len
);
496 if (stub_name
!= NULL
)
497 sprintf (stub_name
, "%08x_%x:%x+%x",
498 input_section
->id
& 0xffffffff,
499 sym_sec
->id
& 0xffffffff,
500 (int) ELF32_R_SYM (rela
->r_info
) & 0xffffffff,
501 (int) rela
->r_addend
& 0xffffffff);
506 /* Look up an entry in the stub hash. Stub entries are cached because
507 creating the stub name takes a bit of time. */
509 static struct elf32_hppa_stub_hash_entry
*
510 hppa_get_stub_entry (const asection
*input_section
,
511 const asection
*sym_sec
,
512 struct elf32_hppa_link_hash_entry
*hh
,
513 const Elf_Internal_Rela
*rela
,
514 struct elf32_hppa_link_hash_table
*htab
)
516 struct elf32_hppa_stub_hash_entry
*hsh_entry
;
517 const asection
*id_sec
;
519 /* If this input section is part of a group of sections sharing one
520 stub section, then use the id of the first section in the group.
521 Stub names need to include a section id, as there may well be
522 more than one stub used to reach say, printf, and we need to
523 distinguish between them. */
524 id_sec
= htab
->stub_group
[input_section
->id
].link_sec
;
526 if (hh
!= NULL
&& hh
->hsh_cache
!= NULL
527 && hh
->hsh_cache
->hh
== hh
528 && hh
->hsh_cache
->id_sec
== id_sec
)
530 hsh_entry
= hh
->hsh_cache
;
536 stub_name
= hppa_stub_name (id_sec
, sym_sec
, hh
, rela
);
537 if (stub_name
== NULL
)
540 hsh_entry
= hppa_stub_hash_lookup (&htab
->bstab
,
541 stub_name
, FALSE
, FALSE
);
543 hh
->hsh_cache
= hsh_entry
;
551 /* Add a new stub entry to the stub hash. Not all fields of the new
552 stub entry are initialised. */
554 static struct elf32_hppa_stub_hash_entry
*
555 hppa_add_stub (const char *stub_name
,
557 struct elf32_hppa_link_hash_table
*htab
)
561 struct elf32_hppa_stub_hash_entry
*hsh
;
563 link_sec
= htab
->stub_group
[section
->id
].link_sec
;
564 stub_sec
= htab
->stub_group
[section
->id
].stub_sec
;
565 if (stub_sec
== NULL
)
567 stub_sec
= htab
->stub_group
[link_sec
->id
].stub_sec
;
568 if (stub_sec
== NULL
)
574 namelen
= strlen (link_sec
->name
);
575 len
= namelen
+ sizeof (STUB_SUFFIX
);
576 s_name
= bfd_alloc (htab
->stub_bfd
, len
);
580 memcpy (s_name
, link_sec
->name
, namelen
);
581 memcpy (s_name
+ namelen
, STUB_SUFFIX
, sizeof (STUB_SUFFIX
));
582 stub_sec
= (*htab
->add_stub_section
) (s_name
, link_sec
);
583 if (stub_sec
== NULL
)
585 htab
->stub_group
[link_sec
->id
].stub_sec
= stub_sec
;
587 htab
->stub_group
[section
->id
].stub_sec
= stub_sec
;
590 /* Enter this entry into the linker stub hash table. */
591 hsh
= hppa_stub_hash_lookup (&htab
->bstab
, stub_name
,
595 (*_bfd_error_handler
) (_("%B: cannot create stub entry %s"),
601 hsh
->stub_sec
= stub_sec
;
602 hsh
->stub_offset
= 0;
603 hsh
->id_sec
= link_sec
;
607 /* Determine the type of stub needed, if any, for a call. */
609 static enum elf32_hppa_stub_type
610 hppa_type_of_stub (asection
*input_sec
,
611 const Elf_Internal_Rela
*rela
,
612 struct elf32_hppa_link_hash_entry
*hh
,
614 struct bfd_link_info
*info
)
617 bfd_vma branch_offset
;
618 bfd_vma max_branch_offset
;
622 && hh
->eh
.plt
.offset
!= (bfd_vma
) -1
623 && hh
->eh
.dynindx
!= -1
626 || !hh
->eh
.def_regular
627 || hh
->eh
.root
.type
== bfd_link_hash_defweak
))
629 /* We need an import stub. Decide between hppa_stub_import
630 and hppa_stub_import_shared later. */
631 return hppa_stub_import
;
634 /* Determine where the call point is. */
635 location
= (input_sec
->output_offset
636 + input_sec
->output_section
->vma
639 branch_offset
= destination
- location
- 8;
640 r_type
= ELF32_R_TYPE (rela
->r_info
);
642 /* Determine if a long branch stub is needed. parisc branch offsets
643 are relative to the second instruction past the branch, ie. +8
644 bytes on from the branch instruction location. The offset is
645 signed and counts in units of 4 bytes. */
646 if (r_type
== (unsigned int) R_PARISC_PCREL17F
)
647 max_branch_offset
= (1 << (17 - 1)) << 2;
649 else if (r_type
== (unsigned int) R_PARISC_PCREL12F
)
650 max_branch_offset
= (1 << (12 - 1)) << 2;
652 else /* R_PARISC_PCREL22F. */
653 max_branch_offset
= (1 << (22 - 1)) << 2;
655 if (branch_offset
+ max_branch_offset
>= 2*max_branch_offset
)
656 return hppa_stub_long_branch
;
658 return hppa_stub_none
;
661 /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
662 IN_ARG contains the link info pointer. */
664 #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
665 #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
667 #define BL_R1 0xe8200000 /* b,l .+8,%r1 */
668 #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
669 #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
671 #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
672 #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
673 #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
674 #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
676 #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
677 #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
679 #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
680 #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
681 #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
682 #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
684 #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
685 #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
686 #define NOP 0x08000240 /* nop */
687 #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
688 #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
689 #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
696 #define LDW_R1_DLT LDW_R1_R19
698 #define LDW_R1_DLT LDW_R1_DP
702 hppa_build_one_stub (struct bfd_hash_entry
*bh
, void *in_arg
)
704 struct elf32_hppa_stub_hash_entry
*hsh
;
705 struct bfd_link_info
*info
;
706 struct elf32_hppa_link_hash_table
*htab
;
716 /* Massage our args to the form they really have. */
717 hsh
= hppa_stub_hash_entry (bh
);
718 info
= (struct bfd_link_info
*)in_arg
;
720 htab
= hppa_link_hash_table (info
);
721 stub_sec
= hsh
->stub_sec
;
723 /* Make a note of the offset within the stubs for this entry. */
724 hsh
->stub_offset
= stub_sec
->size
;
725 loc
= stub_sec
->contents
+ hsh
->stub_offset
;
727 stub_bfd
= stub_sec
->owner
;
729 switch (hsh
->stub_type
)
731 case hppa_stub_long_branch
:
732 /* Create the long branch. A long branch is formed with "ldil"
733 loading the upper bits of the target address into a register,
734 then branching with "be" which adds in the lower bits.
735 The "be" has its delay slot nullified. */
736 sym_value
= (hsh
->target_value
737 + hsh
->target_section
->output_offset
738 + hsh
->target_section
->output_section
->vma
);
740 val
= hppa_field_adjust (sym_value
, 0, e_lrsel
);
741 insn
= hppa_rebuild_insn ((int) LDIL_R1
, val
, 21);
742 bfd_put_32 (stub_bfd
, insn
, loc
);
744 val
= hppa_field_adjust (sym_value
, 0, e_rrsel
) >> 2;
745 insn
= hppa_rebuild_insn ((int) BE_SR4_R1
, val
, 17);
746 bfd_put_32 (stub_bfd
, insn
, loc
+ 4);
751 case hppa_stub_long_branch_shared
:
752 /* Branches are relative. This is where we are going to. */
753 sym_value
= (hsh
->target_value
754 + hsh
->target_section
->output_offset
755 + hsh
->target_section
->output_section
->vma
);
757 /* And this is where we are coming from, more or less. */
758 sym_value
-= (hsh
->stub_offset
759 + stub_sec
->output_offset
760 + stub_sec
->output_section
->vma
);
762 bfd_put_32 (stub_bfd
, (bfd_vma
) BL_R1
, loc
);
763 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) -8, e_lrsel
);
764 insn
= hppa_rebuild_insn ((int) ADDIL_R1
, val
, 21);
765 bfd_put_32 (stub_bfd
, insn
, loc
+ 4);
767 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) -8, e_rrsel
) >> 2;
768 insn
= hppa_rebuild_insn ((int) BE_SR4_R1
, val
, 17);
769 bfd_put_32 (stub_bfd
, insn
, loc
+ 8);
773 case hppa_stub_import
:
774 case hppa_stub_import_shared
:
775 off
= hsh
->hh
->eh
.plt
.offset
;
776 if (off
>= (bfd_vma
) -2)
779 off
&= ~ (bfd_vma
) 1;
781 + htab
->splt
->output_offset
782 + htab
->splt
->output_section
->vma
783 - elf_gp (htab
->splt
->output_section
->owner
));
787 if (hsh
->stub_type
== hppa_stub_import_shared
)
790 val
= hppa_field_adjust (sym_value
, 0, e_lrsel
),
791 insn
= hppa_rebuild_insn ((int) insn
, val
, 21);
792 bfd_put_32 (stub_bfd
, insn
, loc
);
794 /* It is critical to use lrsel/rrsel here because we are using
795 two different offsets (+0 and +4) from sym_value. If we use
796 lsel/rsel then with unfortunate sym_values we will round
797 sym_value+4 up to the next 2k block leading to a mis-match
798 between the lsel and rsel value. */
799 val
= hppa_field_adjust (sym_value
, 0, e_rrsel
);
800 insn
= hppa_rebuild_insn ((int) LDW_R1_R21
, val
, 14);
801 bfd_put_32 (stub_bfd
, insn
, loc
+ 4);
803 if (htab
->multi_subspace
)
805 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) 4, e_rrsel
);
806 insn
= hppa_rebuild_insn ((int) LDW_R1_DLT
, val
, 14);
807 bfd_put_32 (stub_bfd
, insn
, loc
+ 8);
809 bfd_put_32 (stub_bfd
, (bfd_vma
) LDSID_R21_R1
, loc
+ 12);
810 bfd_put_32 (stub_bfd
, (bfd_vma
) MTSP_R1
, loc
+ 16);
811 bfd_put_32 (stub_bfd
, (bfd_vma
) BE_SR0_R21
, loc
+ 20);
812 bfd_put_32 (stub_bfd
, (bfd_vma
) STW_RP
, loc
+ 24);
818 bfd_put_32 (stub_bfd
, (bfd_vma
) BV_R0_R21
, loc
+ 8);
819 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) 4, e_rrsel
);
820 insn
= hppa_rebuild_insn ((int) LDW_R1_DLT
, val
, 14);
821 bfd_put_32 (stub_bfd
, insn
, loc
+ 12);
828 case hppa_stub_export
:
829 /* Branches are relative. This is where we are going to. */
830 sym_value
= (hsh
->target_value
831 + hsh
->target_section
->output_offset
832 + hsh
->target_section
->output_section
->vma
);
834 /* And this is where we are coming from. */
835 sym_value
-= (hsh
->stub_offset
836 + stub_sec
->output_offset
837 + stub_sec
->output_section
->vma
);
839 if (sym_value
- 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
840 && (!htab
->has_22bit_branch
841 || sym_value
- 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
843 (*_bfd_error_handler
)
844 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
845 hsh
->target_section
->owner
,
847 (long) hsh
->stub_offset
,
848 hsh
->bh_root
.string
);
849 bfd_set_error (bfd_error_bad_value
);
853 val
= hppa_field_adjust (sym_value
, (bfd_signed_vma
) -8, e_fsel
) >> 2;
854 if (!htab
->has_22bit_branch
)
855 insn
= hppa_rebuild_insn ((int) BL_RP
, val
, 17);
857 insn
= hppa_rebuild_insn ((int) BL22_RP
, val
, 22);
858 bfd_put_32 (stub_bfd
, insn
, loc
);
860 bfd_put_32 (stub_bfd
, (bfd_vma
) NOP
, loc
+ 4);
861 bfd_put_32 (stub_bfd
, (bfd_vma
) LDW_RP
, loc
+ 8);
862 bfd_put_32 (stub_bfd
, (bfd_vma
) LDSID_RP_R1
, loc
+ 12);
863 bfd_put_32 (stub_bfd
, (bfd_vma
) MTSP_R1
, loc
+ 16);
864 bfd_put_32 (stub_bfd
, (bfd_vma
) BE_SR0_RP
, loc
+ 20);
866 /* Point the function symbol at the stub. */
867 hsh
->hh
->eh
.root
.u
.def
.section
= stub_sec
;
868 hsh
->hh
->eh
.root
.u
.def
.value
= stub_sec
->size
;
878 stub_sec
->size
+= size
;
903 /* As above, but don't actually build the stub. Just bump offset so
904 we know stub section sizes. */
907 hppa_size_one_stub (struct bfd_hash_entry
*bh
, void *in_arg
)
909 struct elf32_hppa_stub_hash_entry
*hsh
;
910 struct elf32_hppa_link_hash_table
*htab
;
913 /* Massage our args to the form they really have. */
914 hsh
= hppa_stub_hash_entry (bh
);
917 if (hsh
->stub_type
== hppa_stub_long_branch
)
919 else if (hsh
->stub_type
== hppa_stub_long_branch_shared
)
921 else if (hsh
->stub_type
== hppa_stub_export
)
923 else /* hppa_stub_import or hppa_stub_import_shared. */
925 if (htab
->multi_subspace
)
931 hsh
->stub_sec
->size
+= size
;
935 /* Return nonzero if ABFD represents an HPPA ELF32 file.
936 Additionally we set the default architecture and machine. */
939 elf32_hppa_object_p (bfd
*abfd
)
941 Elf_Internal_Ehdr
* i_ehdrp
;
944 i_ehdrp
= elf_elfheader (abfd
);
945 if (strcmp (bfd_get_target (abfd
), "elf32-hppa-linux") == 0)
947 /* GCC on hppa-linux produces binaries with OSABI=Linux,
948 but the kernel produces corefiles with OSABI=SysV. */
949 if (i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_LINUX
&&
950 i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_NONE
) /* aka SYSV */
953 else if (strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") == 0)
955 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
956 but the kernel produces corefiles with OSABI=SysV. */
957 if (i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_NETBSD
&&
958 i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_NONE
) /* aka SYSV */
963 if (i_ehdrp
->e_ident
[EI_OSABI
] != ELFOSABI_HPUX
)
967 flags
= i_ehdrp
->e_flags
;
968 switch (flags
& (EF_PARISC_ARCH
| EF_PARISC_WIDE
))
971 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 10);
973 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 11);
975 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 20);
976 case EFA_PARISC_2_0
| EF_PARISC_WIDE
:
977 return bfd_default_set_arch_mach (abfd
, bfd_arch_hppa
, 25);
982 /* Create the .plt and .got sections, and set up our hash table
983 short-cuts to various dynamic sections. */
986 elf32_hppa_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
988 struct elf32_hppa_link_hash_table
*htab
;
989 struct elf_link_hash_entry
*eh
;
991 /* Don't try to create the .plt and .got twice. */
992 htab
= hppa_link_hash_table (info
);
993 if (htab
->splt
!= NULL
)
996 /* Call the generic code to do most of the work. */
997 if (! _bfd_elf_create_dynamic_sections (abfd
, info
))
1000 htab
->splt
= bfd_get_section_by_name (abfd
, ".plt");
1001 htab
->srelplt
= bfd_get_section_by_name (abfd
, ".rela.plt");
1003 htab
->sgot
= bfd_get_section_by_name (abfd
, ".got");
1004 htab
->srelgot
= bfd_make_section_with_flags (abfd
, ".rela.got",
1009 | SEC_LINKER_CREATED
1011 if (htab
->srelgot
== NULL
1012 || ! bfd_set_section_alignment (abfd
, htab
->srelgot
, 2))
1015 htab
->sdynbss
= bfd_get_section_by_name (abfd
, ".dynbss");
1016 htab
->srelbss
= bfd_get_section_by_name (abfd
, ".rela.bss");
1018 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
1019 application, because __canonicalize_funcptr_for_compare needs it. */
1020 eh
= elf_hash_table (info
)->hgot
;
1021 eh
->forced_local
= 0;
1022 eh
->other
= STV_DEFAULT
;
1023 return bfd_elf_link_record_dynamic_symbol (info
, eh
);
1026 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1029 elf32_hppa_copy_indirect_symbol (struct bfd_link_info
*info
,
1030 struct elf_link_hash_entry
*eh_dir
,
1031 struct elf_link_hash_entry
*eh_ind
)
1033 struct elf32_hppa_link_hash_entry
*hh_dir
, *hh_ind
;
1035 hh_dir
= hppa_elf_hash_entry (eh_dir
);
1036 hh_ind
= hppa_elf_hash_entry (eh_ind
);
1038 if (hh_ind
->dyn_relocs
!= NULL
)
1040 if (hh_dir
->dyn_relocs
!= NULL
)
1042 struct elf32_hppa_dyn_reloc_entry
**hdh_pp
;
1043 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1045 /* Add reloc counts against the indirect sym to the direct sym
1046 list. Merge any entries against the same section. */
1047 for (hdh_pp
= &hh_ind
->dyn_relocs
; (hdh_p
= *hdh_pp
) != NULL
; )
1049 struct elf32_hppa_dyn_reloc_entry
*hdh_q
;
1051 for (hdh_q
= hh_dir
->dyn_relocs
;
1053 hdh_q
= hdh_q
->hdh_next
)
1054 if (hdh_q
->sec
== hdh_p
->sec
)
1056 #if RELATIVE_DYNRELOCS
1057 hdh_q
->relative_count
+= hdh_p
->relative_count
;
1059 hdh_q
->count
+= hdh_p
->count
;
1060 *hdh_pp
= hdh_p
->hdh_next
;
1064 hdh_pp
= &hdh_p
->hdh_next
;
1066 *hdh_pp
= hh_dir
->dyn_relocs
;
1069 hh_dir
->dyn_relocs
= hh_ind
->dyn_relocs
;
1070 hh_ind
->dyn_relocs
= NULL
;
1073 if (ELIMINATE_COPY_RELOCS
1074 && eh_ind
->root
.type
!= bfd_link_hash_indirect
1075 && eh_dir
->dynamic_adjusted
)
1077 /* If called to transfer flags for a weakdef during processing
1078 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1079 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
1080 eh_dir
->ref_dynamic
|= eh_ind
->ref_dynamic
;
1081 eh_dir
->ref_regular
|= eh_ind
->ref_regular
;
1082 eh_dir
->ref_regular_nonweak
|= eh_ind
->ref_regular_nonweak
;
1083 eh_dir
->needs_plt
|= eh_ind
->needs_plt
;
1087 if (eh_ind
->root
.type
== bfd_link_hash_indirect
1088 && eh_dir
->got
.refcount
<= 0)
1090 hh_dir
->tls_type
= hh_ind
->tls_type
;
1091 hh_ind
->tls_type
= GOT_UNKNOWN
;
1094 _bfd_elf_link_hash_copy_indirect (info
, eh_dir
, eh_ind
);
1099 elf32_hppa_optimized_tls_reloc (struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
1100 int r_type
, int is_local ATTRIBUTE_UNUSED
)
1102 /* For now we don't support linker optimizations. */
1106 /* Look through the relocs for a section during the first phase, and
1107 calculate needed space in the global offset table, procedure linkage
1108 table, and dynamic reloc sections. At this point we haven't
1109 necessarily read all the input files. */
1112 elf32_hppa_check_relocs (bfd
*abfd
,
1113 struct bfd_link_info
*info
,
1115 const Elf_Internal_Rela
*relocs
)
1117 Elf_Internal_Shdr
*symtab_hdr
;
1118 struct elf_link_hash_entry
**eh_syms
;
1119 const Elf_Internal_Rela
*rela
;
1120 const Elf_Internal_Rela
*rela_end
;
1121 struct elf32_hppa_link_hash_table
*htab
;
1123 asection
*stubreloc
;
1124 int tls_type
= GOT_UNKNOWN
, old_tls_type
= GOT_UNKNOWN
;
1126 if (info
->relocatable
)
1129 htab
= hppa_link_hash_table (info
);
1130 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1131 eh_syms
= elf_sym_hashes (abfd
);
1135 rela_end
= relocs
+ sec
->reloc_count
;
1136 for (rela
= relocs
; rela
< rela_end
; rela
++)
1145 unsigned int r_symndx
, r_type
;
1146 struct elf32_hppa_link_hash_entry
*hh
;
1149 r_symndx
= ELF32_R_SYM (rela
->r_info
);
1151 if (r_symndx
< symtab_hdr
->sh_info
)
1155 hh
= hppa_elf_hash_entry (eh_syms
[r_symndx
- symtab_hdr
->sh_info
]);
1156 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
1157 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
1158 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
1161 r_type
= ELF32_R_TYPE (rela
->r_info
);
1162 r_type
= elf32_hppa_optimized_tls_reloc (info
, r_type
, hh
== NULL
);
1166 case R_PARISC_DLTIND14F
:
1167 case R_PARISC_DLTIND14R
:
1168 case R_PARISC_DLTIND21L
:
1169 /* This symbol requires a global offset table entry. */
1170 need_entry
= NEED_GOT
;
1173 case R_PARISC_PLABEL14R
: /* "Official" procedure labels. */
1174 case R_PARISC_PLABEL21L
:
1175 case R_PARISC_PLABEL32
:
1176 /* If the addend is non-zero, we break badly. */
1177 if (rela
->r_addend
!= 0)
1180 /* If we are creating a shared library, then we need to
1181 create a PLT entry for all PLABELs, because PLABELs with
1182 local symbols may be passed via a pointer to another
1183 object. Additionally, output a dynamic relocation
1184 pointing to the PLT entry.
1186 For executables, the original 32-bit ABI allowed two
1187 different styles of PLABELs (function pointers): For
1188 global functions, the PLABEL word points into the .plt
1189 two bytes past a (function address, gp) pair, and for
1190 local functions the PLABEL points directly at the
1191 function. The magic +2 for the first type allows us to
1192 differentiate between the two. As you can imagine, this
1193 is a real pain when it comes to generating code to call
1194 functions indirectly or to compare function pointers.
1195 We avoid the mess by always pointing a PLABEL into the
1196 .plt, even for local functions. */
1197 need_entry
= PLT_PLABEL
| NEED_PLT
| NEED_DYNREL
;
1200 case R_PARISC_PCREL12F
:
1201 htab
->has_12bit_branch
= 1;
1204 case R_PARISC_PCREL17C
:
1205 case R_PARISC_PCREL17F
:
1206 htab
->has_17bit_branch
= 1;
1209 case R_PARISC_PCREL22F
:
1210 htab
->has_22bit_branch
= 1;
1212 /* Function calls might need to go through the .plt, and
1213 might require long branch stubs. */
1216 /* We know local syms won't need a .plt entry, and if
1217 they need a long branch stub we can't guarantee that
1218 we can reach the stub. So just flag an error later
1219 if we're doing a shared link and find we need a long
1225 /* Global symbols will need a .plt entry if they remain
1226 global, and in most cases won't need a long branch
1227 stub. Unfortunately, we have to cater for the case
1228 where a symbol is forced local by versioning, or due
1229 to symbolic linking, and we lose the .plt entry. */
1230 need_entry
= NEED_PLT
;
1231 if (hh
->eh
.type
== STT_PARISC_MILLI
)
1236 case R_PARISC_SEGBASE
: /* Used to set segment base. */
1237 case R_PARISC_SEGREL32
: /* Relative reloc, used for unwind. */
1238 case R_PARISC_PCREL14F
: /* PC relative load/store. */
1239 case R_PARISC_PCREL14R
:
1240 case R_PARISC_PCREL17R
: /* External branches. */
1241 case R_PARISC_PCREL21L
: /* As above, and for load/store too. */
1242 case R_PARISC_PCREL32
:
1243 /* We don't need to propagate the relocation if linking a
1244 shared object since these are section relative. */
1247 case R_PARISC_DPREL14F
: /* Used for gp rel data load/store. */
1248 case R_PARISC_DPREL14R
:
1249 case R_PARISC_DPREL21L
:
1252 (*_bfd_error_handler
)
1253 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1255 elf_hppa_howto_table
[r_type
].name
);
1256 bfd_set_error (bfd_error_bad_value
);
1261 case R_PARISC_DIR17F
: /* Used for external branches. */
1262 case R_PARISC_DIR17R
:
1263 case R_PARISC_DIR14F
: /* Used for load/store from absolute locn. */
1264 case R_PARISC_DIR14R
:
1265 case R_PARISC_DIR21L
: /* As above, and for ext branches too. */
1266 case R_PARISC_DIR32
: /* .word relocs. */
1267 /* We may want to output a dynamic relocation later. */
1268 need_entry
= NEED_DYNREL
;
1271 /* This relocation describes the C++ object vtable hierarchy.
1272 Reconstruct it for later use during GC. */
1273 case R_PARISC_GNU_VTINHERIT
:
1274 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, &hh
->eh
, rela
->r_offset
))
1278 /* This relocation describes which C++ vtable entries are actually
1279 used. Record for later use during GC. */
1280 case R_PARISC_GNU_VTENTRY
:
1281 BFD_ASSERT (hh
!= NULL
);
1283 && !bfd_elf_gc_record_vtentry (abfd
, sec
, &hh
->eh
, rela
->r_addend
))
1287 case R_PARISC_TLS_GD21L
:
1288 case R_PARISC_TLS_GD14R
:
1289 case R_PARISC_TLS_LDM21L
:
1290 case R_PARISC_TLS_LDM14R
:
1291 need_entry
= NEED_GOT
;
1294 case R_PARISC_TLS_IE21L
:
1295 case R_PARISC_TLS_IE14R
:
1297 info
->flags
|= DF_STATIC_TLS
;
1298 need_entry
= NEED_GOT
;
1305 /* Now carry out our orders. */
1306 if (need_entry
& NEED_GOT
)
1311 tls_type
= GOT_NORMAL
;
1313 case R_PARISC_TLS_GD21L
:
1314 case R_PARISC_TLS_GD14R
:
1315 tls_type
|= GOT_TLS_GD
;
1317 case R_PARISC_TLS_LDM21L
:
1318 case R_PARISC_TLS_LDM14R
:
1319 tls_type
|= GOT_TLS_LDM
;
1321 case R_PARISC_TLS_IE21L
:
1322 case R_PARISC_TLS_IE14R
:
1323 tls_type
|= GOT_TLS_IE
;
1327 /* Allocate space for a GOT entry, as well as a dynamic
1328 relocation for this entry. */
1329 if (htab
->sgot
== NULL
)
1331 if (htab
->etab
.dynobj
== NULL
)
1332 htab
->etab
.dynobj
= abfd
;
1333 if (!elf32_hppa_create_dynamic_sections (htab
->etab
.dynobj
, info
))
1337 if (r_type
== R_PARISC_TLS_LDM21L
1338 || r_type
== R_PARISC_TLS_LDM14R
)
1339 hppa_link_hash_table (info
)->tls_ldm_got
.refcount
+= 1;
1344 hh
->eh
.got
.refcount
+= 1;
1345 old_tls_type
= hh
->tls_type
;
1349 bfd_signed_vma
*local_got_refcounts
;
1351 /* This is a global offset table entry for a local symbol. */
1352 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1353 if (local_got_refcounts
== NULL
)
1357 /* Allocate space for local got offsets and local
1358 plt offsets. Done this way to save polluting
1359 elf_obj_tdata with another target specific
1361 size
= symtab_hdr
->sh_info
;
1362 size
*= 2 * sizeof (bfd_signed_vma
);
1363 /* Add in space to store the local GOT TLS types. */
1364 size
+= symtab_hdr
->sh_info
;
1365 local_got_refcounts
= bfd_zalloc (abfd
, size
);
1366 if (local_got_refcounts
== NULL
)
1368 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
1369 memset (hppa_elf_local_got_tls_type (abfd
),
1370 GOT_UNKNOWN
, symtab_hdr
->sh_info
);
1372 local_got_refcounts
[r_symndx
] += 1;
1374 old_tls_type
= hppa_elf_local_got_tls_type (abfd
) [r_symndx
];
1377 tls_type
|= old_tls_type
;
1379 if (old_tls_type
!= tls_type
)
1382 hh
->tls_type
= tls_type
;
1384 hppa_elf_local_got_tls_type (abfd
) [r_symndx
] = tls_type
;
1390 if (need_entry
& NEED_PLT
)
1392 /* If we are creating a shared library, and this is a reloc
1393 against a weak symbol or a global symbol in a dynamic
1394 object, then we will be creating an import stub and a
1395 .plt entry for the symbol. Similarly, on a normal link
1396 to symbols defined in a dynamic object we'll need the
1397 import stub and a .plt entry. We don't know yet whether
1398 the symbol is defined or not, so make an entry anyway and
1399 clean up later in adjust_dynamic_symbol. */
1400 if ((sec
->flags
& SEC_ALLOC
) != 0)
1404 hh
->eh
.needs_plt
= 1;
1405 hh
->eh
.plt
.refcount
+= 1;
1407 /* If this .plt entry is for a plabel, mark it so
1408 that adjust_dynamic_symbol will keep the entry
1409 even if it appears to be local. */
1410 if (need_entry
& PLT_PLABEL
)
1413 else if (need_entry
& PLT_PLABEL
)
1415 bfd_signed_vma
*local_got_refcounts
;
1416 bfd_signed_vma
*local_plt_refcounts
;
1418 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1419 if (local_got_refcounts
== NULL
)
1423 /* Allocate space for local got offsets and local
1425 size
= symtab_hdr
->sh_info
;
1426 size
*= 2 * sizeof (bfd_signed_vma
);
1427 /* Add in space to store the local GOT TLS types. */
1428 size
+= symtab_hdr
->sh_info
;
1429 local_got_refcounts
= bfd_zalloc (abfd
, size
);
1430 if (local_got_refcounts
== NULL
)
1432 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
1434 local_plt_refcounts
= (local_got_refcounts
1435 + symtab_hdr
->sh_info
);
1436 local_plt_refcounts
[r_symndx
] += 1;
1441 if (need_entry
& NEED_DYNREL
)
1443 /* Flag this symbol as having a non-got, non-plt reference
1444 so that we generate copy relocs if it turns out to be
1446 if (hh
!= NULL
&& !info
->shared
)
1447 hh
->eh
.non_got_ref
= 1;
1449 /* If we are creating a shared library then we need to copy
1450 the reloc into the shared library. However, if we are
1451 linking with -Bsymbolic, we need only copy absolute
1452 relocs or relocs against symbols that are not defined in
1453 an object we are including in the link. PC- or DP- or
1454 DLT-relative relocs against any local sym or global sym
1455 with DEF_REGULAR set, can be discarded. At this point we
1456 have not seen all the input files, so it is possible that
1457 DEF_REGULAR is not set now but will be set later (it is
1458 never cleared). We account for that possibility below by
1459 storing information in the dyn_relocs field of the
1462 A similar situation to the -Bsymbolic case occurs when
1463 creating shared libraries and symbol visibility changes
1464 render the symbol local.
1466 As it turns out, all the relocs we will be creating here
1467 are absolute, so we cannot remove them on -Bsymbolic
1468 links or visibility changes anyway. A STUB_REL reloc
1469 is absolute too, as in that case it is the reloc in the
1470 stub we will be creating, rather than copying the PCREL
1471 reloc in the branch.
1473 If on the other hand, we are creating an executable, we
1474 may need to keep relocations for symbols satisfied by a
1475 dynamic library if we manage to avoid copy relocs for the
1478 && (sec
->flags
& SEC_ALLOC
) != 0
1479 && (IS_ABSOLUTE_RELOC (r_type
)
1482 || hh
->eh
.root
.type
== bfd_link_hash_defweak
1483 || !hh
->eh
.def_regular
))))
1484 || (ELIMINATE_COPY_RELOCS
1486 && (sec
->flags
& SEC_ALLOC
) != 0
1488 && (hh
->eh
.root
.type
== bfd_link_hash_defweak
1489 || !hh
->eh
.def_regular
)))
1491 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1492 struct elf32_hppa_dyn_reloc_entry
**hdh_head
;
1494 /* Create a reloc section in dynobj and make room for
1501 name
= (bfd_elf_string_from_elf_section
1503 elf_elfheader (abfd
)->e_shstrndx
,
1504 elf_section_data (sec
)->rel_hdr
.sh_name
));
1507 (*_bfd_error_handler
)
1508 (_("Could not find relocation section for %s"),
1510 bfd_set_error (bfd_error_bad_value
);
1514 if (htab
->etab
.dynobj
== NULL
)
1515 htab
->etab
.dynobj
= abfd
;
1517 dynobj
= htab
->etab
.dynobj
;
1518 sreloc
= bfd_get_section_by_name (dynobj
, name
);
1523 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
1524 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
1525 if ((sec
->flags
& SEC_ALLOC
) != 0)
1526 flags
|= SEC_ALLOC
| SEC_LOAD
;
1527 sreloc
= bfd_make_section_with_flags (dynobj
,
1531 || !bfd_set_section_alignment (dynobj
, sreloc
, 2))
1535 elf_section_data (sec
)->sreloc
= sreloc
;
1538 /* If this is a global symbol, we count the number of
1539 relocations we need for this symbol. */
1542 hdh_head
= &hh
->dyn_relocs
;
1546 /* Track dynamic relocs needed for local syms too.
1547 We really need local syms available to do this
1553 sr
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
,
1558 vpp
= &elf_section_data (sr
)->local_dynrel
;
1559 hdh_head
= (struct elf32_hppa_dyn_reloc_entry
**) vpp
;
1563 if (hdh_p
== NULL
|| hdh_p
->sec
!= sec
)
1565 hdh_p
= bfd_alloc (htab
->etab
.dynobj
, sizeof *hdh_p
);
1568 hdh_p
->hdh_next
= *hdh_head
;
1572 #if RELATIVE_DYNRELOCS
1573 hdh_p
->relative_count
= 0;
1578 #if RELATIVE_DYNRELOCS
1579 if (!IS_ABSOLUTE_RELOC (rtype
))
1580 hdh_p
->relative_count
+= 1;
1589 /* Return the section that should be marked against garbage collection
1590 for a given relocation. */
1593 elf32_hppa_gc_mark_hook (asection
*sec
,
1594 struct bfd_link_info
*info
,
1595 Elf_Internal_Rela
*rela
,
1596 struct elf_link_hash_entry
*hh
,
1597 Elf_Internal_Sym
*sym
)
1600 switch ((unsigned int) ELF32_R_TYPE (rela
->r_info
))
1602 case R_PARISC_GNU_VTINHERIT
:
1603 case R_PARISC_GNU_VTENTRY
:
1607 return _bfd_elf_gc_mark_hook (sec
, info
, rela
, hh
, sym
);
1610 /* Update the got and plt entry reference counts for the section being
1614 elf32_hppa_gc_sweep_hook (bfd
*abfd
,
1615 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
1617 const Elf_Internal_Rela
*relocs
)
1619 Elf_Internal_Shdr
*symtab_hdr
;
1620 struct elf_link_hash_entry
**eh_syms
;
1621 bfd_signed_vma
*local_got_refcounts
;
1622 bfd_signed_vma
*local_plt_refcounts
;
1623 const Elf_Internal_Rela
*rela
, *relend
;
1625 if (info
->relocatable
)
1628 elf_section_data (sec
)->local_dynrel
= NULL
;
1630 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1631 eh_syms
= elf_sym_hashes (abfd
);
1632 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1633 local_plt_refcounts
= local_got_refcounts
;
1634 if (local_plt_refcounts
!= NULL
)
1635 local_plt_refcounts
+= symtab_hdr
->sh_info
;
1637 relend
= relocs
+ sec
->reloc_count
;
1638 for (rela
= relocs
; rela
< relend
; rela
++)
1640 unsigned long r_symndx
;
1641 unsigned int r_type
;
1642 struct elf_link_hash_entry
*eh
= NULL
;
1644 r_symndx
= ELF32_R_SYM (rela
->r_info
);
1645 if (r_symndx
>= symtab_hdr
->sh_info
)
1647 struct elf32_hppa_link_hash_entry
*hh
;
1648 struct elf32_hppa_dyn_reloc_entry
**hdh_pp
;
1649 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1651 eh
= eh_syms
[r_symndx
- symtab_hdr
->sh_info
];
1652 while (eh
->root
.type
== bfd_link_hash_indirect
1653 || eh
->root
.type
== bfd_link_hash_warning
)
1654 eh
= (struct elf_link_hash_entry
*) eh
->root
.u
.i
.link
;
1655 hh
= hppa_elf_hash_entry (eh
);
1657 for (hdh_pp
= &hh
->dyn_relocs
; (hdh_p
= *hdh_pp
) != NULL
; hdh_pp
= &hdh_p
->hdh_next
)
1658 if (hdh_p
->sec
== sec
)
1660 /* Everything must go for SEC. */
1661 *hdh_pp
= hdh_p
->hdh_next
;
1666 r_type
= ELF32_R_TYPE (rela
->r_info
);
1667 r_type
= elf32_hppa_optimized_tls_reloc (info
, r_type
, eh
!= NULL
);
1671 case R_PARISC_DLTIND14F
:
1672 case R_PARISC_DLTIND14R
:
1673 case R_PARISC_DLTIND21L
:
1674 case R_PARISC_TLS_GD21L
:
1675 case R_PARISC_TLS_GD14R
:
1676 case R_PARISC_TLS_IE21L
:
1677 case R_PARISC_TLS_IE14R
:
1680 if (eh
->got
.refcount
> 0)
1681 eh
->got
.refcount
-= 1;
1683 else if (local_got_refcounts
!= NULL
)
1685 if (local_got_refcounts
[r_symndx
] > 0)
1686 local_got_refcounts
[r_symndx
] -= 1;
1690 case R_PARISC_TLS_LDM21L
:
1691 case R_PARISC_TLS_LDM14R
:
1692 hppa_link_hash_table (info
)->tls_ldm_got
.refcount
-= 1;
1695 case R_PARISC_PCREL12F
:
1696 case R_PARISC_PCREL17C
:
1697 case R_PARISC_PCREL17F
:
1698 case R_PARISC_PCREL22F
:
1701 if (eh
->plt
.refcount
> 0)
1702 eh
->plt
.refcount
-= 1;
1706 case R_PARISC_PLABEL14R
:
1707 case R_PARISC_PLABEL21L
:
1708 case R_PARISC_PLABEL32
:
1711 if (eh
->plt
.refcount
> 0)
1712 eh
->plt
.refcount
-= 1;
1714 else if (local_plt_refcounts
!= NULL
)
1716 if (local_plt_refcounts
[r_symndx
] > 0)
1717 local_plt_refcounts
[r_symndx
] -= 1;
1729 /* Support for core dump NOTE sections. */
1732 elf32_hppa_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
1737 switch (note
->descsz
)
1742 case 396: /* Linux/hppa */
1744 elf_tdata (abfd
)->core_signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
1747 elf_tdata (abfd
)->core_pid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
1756 /* Make a ".reg/999" section. */
1757 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
1758 size
, note
->descpos
+ offset
);
1762 elf32_hppa_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
1764 switch (note
->descsz
)
1769 case 124: /* Linux/hppa elf_prpsinfo. */
1770 elf_tdata (abfd
)->core_program
1771 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
1772 elf_tdata (abfd
)->core_command
1773 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
1776 /* Note that for some reason, a spurious space is tacked
1777 onto the end of the args in some (at least one anyway)
1778 implementations, so strip it off if it exists. */
1780 char *command
= elf_tdata (abfd
)->core_command
;
1781 int n
= strlen (command
);
1783 if (0 < n
&& command
[n
- 1] == ' ')
1784 command
[n
- 1] = '\0';
1790 /* Our own version of hide_symbol, so that we can keep plt entries for
1794 elf32_hppa_hide_symbol (struct bfd_link_info
*info
,
1795 struct elf_link_hash_entry
*eh
,
1796 bfd_boolean force_local
)
1800 eh
->forced_local
= 1;
1801 if (eh
->dynindx
!= -1)
1804 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
1809 if (! hppa_elf_hash_entry (eh
)->plabel
)
1812 eh
->plt
= elf_hash_table (info
)->init_plt_refcount
;
1816 /* Adjust a symbol defined by a dynamic object and referenced by a
1817 regular object. The current definition is in some section of the
1818 dynamic object, but we're not including those sections. We have to
1819 change the definition to something the rest of the link can
1823 elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info
*info
,
1824 struct elf_link_hash_entry
*eh
)
1826 struct elf32_hppa_link_hash_table
*htab
;
1829 /* If this is a function, put it in the procedure linkage table. We
1830 will fill in the contents of the procedure linkage table later. */
1831 if (eh
->type
== STT_FUNC
1834 if (eh
->plt
.refcount
<= 0
1836 && eh
->root
.type
!= bfd_link_hash_defweak
1837 && ! hppa_elf_hash_entry (eh
)->plabel
1838 && (!info
->shared
|| info
->symbolic
)))
1840 /* The .plt entry is not needed when:
1841 a) Garbage collection has removed all references to the
1843 b) We know for certain the symbol is defined in this
1844 object, and it's not a weak definition, nor is the symbol
1845 used by a plabel relocation. Either this object is the
1846 application or we are doing a shared symbolic link. */
1848 eh
->plt
.offset
= (bfd_vma
) -1;
1855 eh
->plt
.offset
= (bfd_vma
) -1;
1857 /* If this is a weak symbol, and there is a real definition, the
1858 processor independent code will have arranged for us to see the
1859 real definition first, and we can just use the same value. */
1860 if (eh
->u
.weakdef
!= NULL
)
1862 if (eh
->u
.weakdef
->root
.type
!= bfd_link_hash_defined
1863 && eh
->u
.weakdef
->root
.type
!= bfd_link_hash_defweak
)
1865 eh
->root
.u
.def
.section
= eh
->u
.weakdef
->root
.u
.def
.section
;
1866 eh
->root
.u
.def
.value
= eh
->u
.weakdef
->root
.u
.def
.value
;
1867 if (ELIMINATE_COPY_RELOCS
)
1868 eh
->non_got_ref
= eh
->u
.weakdef
->non_got_ref
;
1872 /* This is a reference to a symbol defined by a dynamic object which
1873 is not a function. */
1875 /* If we are creating a shared library, we must presume that the
1876 only references to the symbol are via the global offset table.
1877 For such cases we need not do anything here; the relocations will
1878 be handled correctly by relocate_section. */
1882 /* If there are no references to this symbol that do not use the
1883 GOT, we don't need to generate a copy reloc. */
1884 if (!eh
->non_got_ref
)
1887 if (ELIMINATE_COPY_RELOCS
)
1889 struct elf32_hppa_link_hash_entry
*hh
;
1890 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1892 hh
= hppa_elf_hash_entry (eh
);
1893 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
1895 sec
= hdh_p
->sec
->output_section
;
1896 if (sec
!= NULL
&& (sec
->flags
& SEC_READONLY
) != 0)
1900 /* If we didn't find any dynamic relocs in read-only sections, then
1901 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1904 eh
->non_got_ref
= 0;
1911 (*_bfd_error_handler
) (_("dynamic variable `%s' is zero size"),
1912 eh
->root
.root
.string
);
1916 /* We must allocate the symbol in our .dynbss section, which will
1917 become part of the .bss section of the executable. There will be
1918 an entry for this symbol in the .dynsym section. The dynamic
1919 object will contain position independent code, so all references
1920 from the dynamic object to this symbol will go through the global
1921 offset table. The dynamic linker will use the .dynsym entry to
1922 determine the address it must put in the global offset table, so
1923 both the dynamic object and the regular object will refer to the
1924 same memory location for the variable. */
1926 htab
= hppa_link_hash_table (info
);
1928 /* We must generate a COPY reloc to tell the dynamic linker to
1929 copy the initial value out of the dynamic object and into the
1930 runtime process image. */
1931 if ((eh
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
1933 htab
->srelbss
->size
+= sizeof (Elf32_External_Rela
);
1937 sec
= htab
->sdynbss
;
1939 return _bfd_elf_adjust_dynamic_copy (eh
, sec
);
1942 /* Allocate space in the .plt for entries that won't have relocations.
1943 ie. plabel entries. */
1946 allocate_plt_static (struct elf_link_hash_entry
*eh
, void *inf
)
1948 struct bfd_link_info
*info
;
1949 struct elf32_hppa_link_hash_table
*htab
;
1950 struct elf32_hppa_link_hash_entry
*hh
;
1953 if (eh
->root
.type
== bfd_link_hash_indirect
)
1956 if (eh
->root
.type
== bfd_link_hash_warning
)
1957 eh
= (struct elf_link_hash_entry
*) eh
->root
.u
.i
.link
;
1959 info
= (struct bfd_link_info
*) inf
;
1960 hh
= hppa_elf_hash_entry (eh
);
1961 htab
= hppa_link_hash_table (info
);
1962 if (htab
->etab
.dynamic_sections_created
1963 && eh
->plt
.refcount
> 0)
1965 /* Make sure this symbol is output as a dynamic symbol.
1966 Undefined weak syms won't yet be marked as dynamic. */
1967 if (eh
->dynindx
== -1
1968 && !eh
->forced_local
1969 && eh
->type
!= STT_PARISC_MILLI
)
1971 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
1975 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info
->shared
, eh
))
1977 /* Allocate these later. From this point on, h->plabel
1978 means that the plt entry is only used by a plabel.
1979 We'll be using a normal plt entry for this symbol, so
1980 clear the plabel indicator. */
1984 else if (hh
->plabel
)
1986 /* Make an entry in the .plt section for plabel references
1987 that won't have a .plt entry for other reasons. */
1989 eh
->plt
.offset
= sec
->size
;
1990 sec
->size
+= PLT_ENTRY_SIZE
;
1994 /* No .plt entry needed. */
1995 eh
->plt
.offset
= (bfd_vma
) -1;
2001 eh
->plt
.offset
= (bfd_vma
) -1;
2008 /* Allocate space in .plt, .got and associated reloc sections for
2012 allocate_dynrelocs (struct elf_link_hash_entry
*eh
, void *inf
)
2014 struct bfd_link_info
*info
;
2015 struct elf32_hppa_link_hash_table
*htab
;
2017 struct elf32_hppa_link_hash_entry
*hh
;
2018 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
2020 if (eh
->root
.type
== bfd_link_hash_indirect
)
2023 if (eh
->root
.type
== bfd_link_hash_warning
)
2024 eh
= (struct elf_link_hash_entry
*) eh
->root
.u
.i
.link
;
2027 htab
= hppa_link_hash_table (info
);
2028 hh
= hppa_elf_hash_entry (eh
);
2030 if (htab
->etab
.dynamic_sections_created
2031 && eh
->plt
.offset
!= (bfd_vma
) -1
2033 && eh
->plt
.refcount
> 0)
2035 /* Make an entry in the .plt section. */
2037 eh
->plt
.offset
= sec
->size
;
2038 sec
->size
+= PLT_ENTRY_SIZE
;
2040 /* We also need to make an entry in the .rela.plt section. */
2041 htab
->srelplt
->size
+= sizeof (Elf32_External_Rela
);
2042 htab
->need_plt_stub
= 1;
2045 if (eh
->got
.refcount
> 0)
2047 /* Make sure this symbol is output as a dynamic symbol.
2048 Undefined weak syms won't yet be marked as dynamic. */
2049 if (eh
->dynindx
== -1
2050 && !eh
->forced_local
2051 && eh
->type
!= STT_PARISC_MILLI
)
2053 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
2058 eh
->got
.offset
= sec
->size
;
2059 sec
->size
+= GOT_ENTRY_SIZE
;
2060 /* R_PARISC_TLS_GD* needs two GOT entries */
2061 if ((hh
->tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2062 sec
->size
+= GOT_ENTRY_SIZE
* 2;
2063 else if ((hh
->tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2064 sec
->size
+= GOT_ENTRY_SIZE
;
2065 if (htab
->etab
.dynamic_sections_created
2067 || (eh
->dynindx
!= -1
2068 && !eh
->forced_local
)))
2070 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
2071 if ((hh
->tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2072 htab
->srelgot
->size
+= 2 * sizeof (Elf32_External_Rela
);
2073 else if ((hh
->tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2074 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
2078 eh
->got
.offset
= (bfd_vma
) -1;
2080 if (hh
->dyn_relocs
== NULL
)
2083 /* If this is a -Bsymbolic shared link, then we need to discard all
2084 space allocated for dynamic pc-relative relocs against symbols
2085 defined in a regular object. For the normal shared case, discard
2086 space for relocs that have become local due to symbol visibility
2090 #if RELATIVE_DYNRELOCS
2091 if (SYMBOL_CALLS_LOCAL (info
, eh
))
2093 struct elf32_hppa_dyn_reloc_entry
**hdh_pp
;
2095 for (hdh_pp
= &hh
->dyn_relocs
; (hdh_p
= *hdh_pp
) != NULL
; )
2097 hdh_p
->count
-= hdh_p
->relative_count
;
2098 hdh_p
->relative_count
= 0;
2099 if (hdh_p
->count
== 0)
2100 *hdh_pp
= hdh_p
->hdh_next
;
2102 hdh_pp
= &hdh_p
->hdh_next
;
2107 /* Also discard relocs on undefined weak syms with non-default
2109 if (hh
->dyn_relocs
!= NULL
2110 && eh
->root
.type
== bfd_link_hash_undefweak
)
2112 if (ELF_ST_VISIBILITY (eh
->other
) != STV_DEFAULT
)
2113 hh
->dyn_relocs
= NULL
;
2115 /* Make sure undefined weak symbols are output as a dynamic
2117 else if (eh
->dynindx
== -1
2118 && !eh
->forced_local
)
2120 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
2127 /* For the non-shared case, discard space for relocs against
2128 symbols which turn out to need copy relocs or are not
2131 if (!eh
->non_got_ref
2132 && ((ELIMINATE_COPY_RELOCS
2134 && !eh
->def_regular
)
2135 || (htab
->etab
.dynamic_sections_created
2136 && (eh
->root
.type
== bfd_link_hash_undefweak
2137 || eh
->root
.type
== bfd_link_hash_undefined
))))
2139 /* Make sure this symbol is output as a dynamic symbol.
2140 Undefined weak syms won't yet be marked as dynamic. */
2141 if (eh
->dynindx
== -1
2142 && !eh
->forced_local
2143 && eh
->type
!= STT_PARISC_MILLI
)
2145 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
2149 /* If that succeeded, we know we'll be keeping all the
2151 if (eh
->dynindx
!= -1)
2155 hh
->dyn_relocs
= NULL
;
2161 /* Finally, allocate space. */
2162 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
2164 asection
*sreloc
= elf_section_data (hdh_p
->sec
)->sreloc
;
2165 sreloc
->size
+= hdh_p
->count
* sizeof (Elf32_External_Rela
);
2171 /* This function is called via elf_link_hash_traverse to force
2172 millicode symbols local so they do not end up as globals in the
2173 dynamic symbol table. We ought to be able to do this in
2174 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2175 for all dynamic symbols. Arguably, this is a bug in
2176 elf_adjust_dynamic_symbol. */
2179 clobber_millicode_symbols (struct elf_link_hash_entry
*eh
,
2180 struct bfd_link_info
*info
)
2182 if (eh
->root
.type
== bfd_link_hash_warning
)
2183 eh
= (struct elf_link_hash_entry
*) eh
->root
.u
.i
.link
;
2185 if (eh
->type
== STT_PARISC_MILLI
2186 && !eh
->forced_local
)
2188 elf32_hppa_hide_symbol (info
, eh
, TRUE
);
2193 /* Find any dynamic relocs that apply to read-only sections. */
2196 readonly_dynrelocs (struct elf_link_hash_entry
*eh
, void *inf
)
2198 struct elf32_hppa_link_hash_entry
*hh
;
2199 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
2201 if (eh
->root
.type
== bfd_link_hash_warning
)
2202 eh
= (struct elf_link_hash_entry
*) eh
->root
.u
.i
.link
;
2204 hh
= hppa_elf_hash_entry (eh
);
2205 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
2207 asection
*sec
= hdh_p
->sec
->output_section
;
2209 if (sec
!= NULL
&& (sec
->flags
& SEC_READONLY
) != 0)
2211 struct bfd_link_info
*info
= inf
;
2213 info
->flags
|= DF_TEXTREL
;
2215 /* Not an error, just cut short the traversal. */
2222 /* Set the sizes of the dynamic sections. */
2225 elf32_hppa_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2226 struct bfd_link_info
*info
)
2228 struct elf32_hppa_link_hash_table
*htab
;
2234 htab
= hppa_link_hash_table (info
);
2235 dynobj
= htab
->etab
.dynobj
;
2239 if (htab
->etab
.dynamic_sections_created
)
2241 /* Set the contents of the .interp section to the interpreter. */
2242 if (info
->executable
)
2244 sec
= bfd_get_section_by_name (dynobj
, ".interp");
2247 sec
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
2248 sec
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
2251 /* Force millicode symbols local. */
2252 elf_link_hash_traverse (&htab
->etab
,
2253 clobber_millicode_symbols
,
2257 /* Set up .got and .plt offsets for local syms, and space for local
2259 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
2261 bfd_signed_vma
*local_got
;
2262 bfd_signed_vma
*end_local_got
;
2263 bfd_signed_vma
*local_plt
;
2264 bfd_signed_vma
*end_local_plt
;
2265 bfd_size_type locsymcount
;
2266 Elf_Internal_Shdr
*symtab_hdr
;
2268 char *local_tls_type
;
2270 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2273 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
2275 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
2277 for (hdh_p
= ((struct elf32_hppa_dyn_reloc_entry
*)
2278 elf_section_data (sec
)->local_dynrel
);
2280 hdh_p
= hdh_p
->hdh_next
)
2282 if (!bfd_is_abs_section (hdh_p
->sec
)
2283 && bfd_is_abs_section (hdh_p
->sec
->output_section
))
2285 /* Input section has been discarded, either because
2286 it is a copy of a linkonce section or due to
2287 linker script /DISCARD/, so we'll be discarding
2290 else if (hdh_p
->count
!= 0)
2292 srel
= elf_section_data (hdh_p
->sec
)->sreloc
;
2293 srel
->size
+= hdh_p
->count
* sizeof (Elf32_External_Rela
);
2294 if ((hdh_p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2295 info
->flags
|= DF_TEXTREL
;
2300 local_got
= elf_local_got_refcounts (ibfd
);
2304 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
2305 locsymcount
= symtab_hdr
->sh_info
;
2306 end_local_got
= local_got
+ locsymcount
;
2307 local_tls_type
= hppa_elf_local_got_tls_type (ibfd
);
2309 srel
= htab
->srelgot
;
2310 for (; local_got
< end_local_got
; ++local_got
)
2314 *local_got
= sec
->size
;
2315 sec
->size
+= GOT_ENTRY_SIZE
;
2316 if ((*local_tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2317 sec
->size
+= 2 * GOT_ENTRY_SIZE
;
2318 else if ((*local_tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2319 sec
->size
+= GOT_ENTRY_SIZE
;
2322 srel
->size
+= sizeof (Elf32_External_Rela
);
2323 if ((*local_tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2324 srel
->size
+= 2 * sizeof (Elf32_External_Rela
);
2325 else if ((*local_tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2326 srel
->size
+= sizeof (Elf32_External_Rela
);
2330 *local_got
= (bfd_vma
) -1;
2335 local_plt
= end_local_got
;
2336 end_local_plt
= local_plt
+ locsymcount
;
2337 if (! htab
->etab
.dynamic_sections_created
)
2339 /* Won't be used, but be safe. */
2340 for (; local_plt
< end_local_plt
; ++local_plt
)
2341 *local_plt
= (bfd_vma
) -1;
2346 srel
= htab
->srelplt
;
2347 for (; local_plt
< end_local_plt
; ++local_plt
)
2351 *local_plt
= sec
->size
;
2352 sec
->size
+= PLT_ENTRY_SIZE
;
2354 srel
->size
+= sizeof (Elf32_External_Rela
);
2357 *local_plt
= (bfd_vma
) -1;
2362 if (htab
->tls_ldm_got
.refcount
> 0)
2364 /* Allocate 2 got entries and 1 dynamic reloc for
2365 R_PARISC_TLS_DTPMOD32 relocs. */
2366 htab
->tls_ldm_got
.offset
= htab
->sgot
->size
;
2367 htab
->sgot
->size
+= (GOT_ENTRY_SIZE
* 2);
2368 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
2371 htab
->tls_ldm_got
.offset
= -1;
2373 /* Do all the .plt entries without relocs first. The dynamic linker
2374 uses the last .plt reloc to find the end of the .plt (and hence
2375 the start of the .got) for lazy linking. */
2376 elf_link_hash_traverse (&htab
->etab
, allocate_plt_static
, info
);
2378 /* Allocate global sym .plt and .got entries, and space for global
2379 sym dynamic relocs. */
2380 elf_link_hash_traverse (&htab
->etab
, allocate_dynrelocs
, info
);
2382 /* The check_relocs and adjust_dynamic_symbol entry points have
2383 determined the sizes of the various dynamic sections. Allocate
2386 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
2388 if ((sec
->flags
& SEC_LINKER_CREATED
) == 0)
2391 if (sec
== htab
->splt
)
2393 if (htab
->need_plt_stub
)
2395 /* Make space for the plt stub at the end of the .plt
2396 section. We want this stub right at the end, up
2397 against the .got section. */
2398 int gotalign
= bfd_section_alignment (dynobj
, htab
->sgot
);
2399 int pltalign
= bfd_section_alignment (dynobj
, sec
);
2402 if (gotalign
> pltalign
)
2403 bfd_set_section_alignment (dynobj
, sec
, gotalign
);
2404 mask
= ((bfd_size_type
) 1 << gotalign
) - 1;
2405 sec
->size
= (sec
->size
+ sizeof (plt_stub
) + mask
) & ~mask
;
2408 else if (sec
== htab
->sgot
2409 || sec
== htab
->sdynbss
)
2411 else if (CONST_STRNEQ (bfd_get_section_name (dynobj
, sec
), ".rela"))
2415 /* Remember whether there are any reloc sections other
2417 if (sec
!= htab
->srelplt
)
2420 /* We use the reloc_count field as a counter if we need
2421 to copy relocs into the output file. */
2422 sec
->reloc_count
= 0;
2427 /* It's not one of our sections, so don't allocate space. */
2433 /* If we don't need this section, strip it from the
2434 output file. This is mostly to handle .rela.bss and
2435 .rela.plt. We must create both sections in
2436 create_dynamic_sections, because they must be created
2437 before the linker maps input sections to output
2438 sections. The linker does that before
2439 adjust_dynamic_symbol is called, and it is that
2440 function which decides whether anything needs to go
2441 into these sections. */
2442 sec
->flags
|= SEC_EXCLUDE
;
2446 if ((sec
->flags
& SEC_HAS_CONTENTS
) == 0)
2449 /* Allocate memory for the section contents. Zero it, because
2450 we may not fill in all the reloc sections. */
2451 sec
->contents
= bfd_zalloc (dynobj
, sec
->size
);
2452 if (sec
->contents
== NULL
)
2456 if (htab
->etab
.dynamic_sections_created
)
2458 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2459 actually has nothing to do with the PLT, it is how we
2460 communicate the LTP value of a load module to the dynamic
2462 #define add_dynamic_entry(TAG, VAL) \
2463 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2465 if (!add_dynamic_entry (DT_PLTGOT
, 0))
2468 /* Add some entries to the .dynamic section. We fill in the
2469 values later, in elf32_hppa_finish_dynamic_sections, but we
2470 must add the entries now so that we get the correct size for
2471 the .dynamic section. The DT_DEBUG entry is filled in by the
2472 dynamic linker and used by the debugger. */
2473 if (info
->executable
)
2475 if (!add_dynamic_entry (DT_DEBUG
, 0))
2479 if (htab
->srelplt
->size
!= 0)
2481 if (!add_dynamic_entry (DT_PLTRELSZ
, 0)
2482 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
2483 || !add_dynamic_entry (DT_JMPREL
, 0))
2489 if (!add_dynamic_entry (DT_RELA
, 0)
2490 || !add_dynamic_entry (DT_RELASZ
, 0)
2491 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
2494 /* If any dynamic relocs apply to a read-only section,
2495 then we need a DT_TEXTREL entry. */
2496 if ((info
->flags
& DF_TEXTREL
) == 0)
2497 elf_link_hash_traverse (&htab
->etab
, readonly_dynrelocs
, info
);
2499 if ((info
->flags
& DF_TEXTREL
) != 0)
2501 if (!add_dynamic_entry (DT_TEXTREL
, 0))
2506 #undef add_dynamic_entry
2511 /* External entry points for sizing and building linker stubs. */
2513 /* Set up various things so that we can make a list of input sections
2514 for each output section included in the link. Returns -1 on error,
2515 0 when no stubs will be needed, and 1 on success. */
2518 elf32_hppa_setup_section_lists (bfd
*output_bfd
, struct bfd_link_info
*info
)
2521 unsigned int bfd_count
;
2522 int top_id
, top_index
;
2524 asection
**input_list
, **list
;
2526 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2528 /* Count the number of input BFDs and find the top input section id. */
2529 for (input_bfd
= info
->input_bfds
, bfd_count
= 0, top_id
= 0;
2531 input_bfd
= input_bfd
->link_next
)
2534 for (section
= input_bfd
->sections
;
2536 section
= section
->next
)
2538 if (top_id
< section
->id
)
2539 top_id
= section
->id
;
2542 htab
->bfd_count
= bfd_count
;
2544 amt
= sizeof (struct map_stub
) * (top_id
+ 1);
2545 htab
->stub_group
= bfd_zmalloc (amt
);
2546 if (htab
->stub_group
== NULL
)
2549 /* We can't use output_bfd->section_count here to find the top output
2550 section index as some sections may have been removed, and
2551 strip_excluded_output_sections doesn't renumber the indices. */
2552 for (section
= output_bfd
->sections
, top_index
= 0;
2554 section
= section
->next
)
2556 if (top_index
< section
->index
)
2557 top_index
= section
->index
;
2560 htab
->top_index
= top_index
;
2561 amt
= sizeof (asection
*) * (top_index
+ 1);
2562 input_list
= bfd_malloc (amt
);
2563 htab
->input_list
= input_list
;
2564 if (input_list
== NULL
)
2567 /* For sections we aren't interested in, mark their entries with a
2568 value we can check later. */
2569 list
= input_list
+ top_index
;
2571 *list
= bfd_abs_section_ptr
;
2572 while (list
-- != input_list
);
2574 for (section
= output_bfd
->sections
;
2576 section
= section
->next
)
2578 if ((section
->flags
& SEC_CODE
) != 0)
2579 input_list
[section
->index
] = NULL
;
2585 /* The linker repeatedly calls this function for each input section,
2586 in the order that input sections are linked into output sections.
2587 Build lists of input sections to determine groupings between which
2588 we may insert linker stubs. */
2591 elf32_hppa_next_input_section (struct bfd_link_info
*info
, asection
*isec
)
2593 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2595 if (isec
->output_section
->index
<= htab
->top_index
)
2597 asection
**list
= htab
->input_list
+ isec
->output_section
->index
;
2598 if (*list
!= bfd_abs_section_ptr
)
2600 /* Steal the link_sec pointer for our list. */
2601 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2602 /* This happens to make the list in reverse order,
2603 which is what we want. */
2604 PREV_SEC (isec
) = *list
;
2610 /* See whether we can group stub sections together. Grouping stub
2611 sections may result in fewer stubs. More importantly, we need to
2612 put all .init* and .fini* stubs at the beginning of the .init or
2613 .fini output sections respectively, because glibc splits the
2614 _init and _fini functions into multiple parts. Putting a stub in
2615 the middle of a function is not a good idea. */
2618 group_sections (struct elf32_hppa_link_hash_table
*htab
,
2619 bfd_size_type stub_group_size
,
2620 bfd_boolean stubs_always_before_branch
)
2622 asection
**list
= htab
->input_list
+ htab
->top_index
;
2625 asection
*tail
= *list
;
2626 if (tail
== bfd_abs_section_ptr
)
2628 while (tail
!= NULL
)
2632 bfd_size_type total
;
2633 bfd_boolean big_sec
;
2637 big_sec
= total
>= stub_group_size
;
2639 while ((prev
= PREV_SEC (curr
)) != NULL
2640 && ((total
+= curr
->output_offset
- prev
->output_offset
)
2644 /* OK, the size from the start of CURR to the end is less
2645 than 240000 bytes and thus can be handled by one stub
2646 section. (or the tail section is itself larger than
2647 240000 bytes, in which case we may be toast.)
2648 We should really be keeping track of the total size of
2649 stubs added here, as stubs contribute to the final output
2650 section size. That's a little tricky, and this way will
2651 only break if stubs added total more than 22144 bytes, or
2652 2768 long branch stubs. It seems unlikely for more than
2653 2768 different functions to be called, especially from
2654 code only 240000 bytes long. This limit used to be
2655 250000, but c++ code tends to generate lots of little
2656 functions, and sometimes violated the assumption. */
2659 prev
= PREV_SEC (tail
);
2660 /* Set up this stub group. */
2661 htab
->stub_group
[tail
->id
].link_sec
= curr
;
2663 while (tail
!= curr
&& (tail
= prev
) != NULL
);
2665 /* But wait, there's more! Input sections up to 240000
2666 bytes before the stub section can be handled by it too.
2667 Don't do this if we have a really large section after the
2668 stubs, as adding more stubs increases the chance that
2669 branches may not reach into the stub section. */
2670 if (!stubs_always_before_branch
&& !big_sec
)
2674 && ((total
+= tail
->output_offset
- prev
->output_offset
)
2678 prev
= PREV_SEC (tail
);
2679 htab
->stub_group
[tail
->id
].link_sec
= curr
;
2685 while (list
-- != htab
->input_list
);
2686 free (htab
->input_list
);
2690 /* Read in all local syms for all input bfds, and create hash entries
2691 for export stubs if we are building a multi-subspace shared lib.
2692 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2695 get_local_syms (bfd
*output_bfd
, bfd
*input_bfd
, struct bfd_link_info
*info
)
2697 unsigned int bfd_indx
;
2698 Elf_Internal_Sym
*local_syms
, **all_local_syms
;
2699 int stub_changed
= 0;
2700 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2702 /* We want to read in symbol extension records only once. To do this
2703 we need to read in the local symbols in parallel and save them for
2704 later use; so hold pointers to the local symbols in an array. */
2705 bfd_size_type amt
= sizeof (Elf_Internal_Sym
*) * htab
->bfd_count
;
2706 all_local_syms
= bfd_zmalloc (amt
);
2707 htab
->all_local_syms
= all_local_syms
;
2708 if (all_local_syms
== NULL
)
2711 /* Walk over all the input BFDs, swapping in local symbols.
2712 If we are creating a shared library, create hash entries for the
2716 input_bfd
= input_bfd
->link_next
, bfd_indx
++)
2718 Elf_Internal_Shdr
*symtab_hdr
;
2720 /* We'll need the symbol table in a second. */
2721 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2722 if (symtab_hdr
->sh_info
== 0)
2725 /* We need an array of the local symbols attached to the input bfd. */
2726 local_syms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
2727 if (local_syms
== NULL
)
2729 local_syms
= bfd_elf_get_elf_syms (input_bfd
, symtab_hdr
,
2730 symtab_hdr
->sh_info
, 0,
2732 /* Cache them for elf_link_input_bfd. */
2733 symtab_hdr
->contents
= (unsigned char *) local_syms
;
2735 if (local_syms
== NULL
)
2738 all_local_syms
[bfd_indx
] = local_syms
;
2740 if (info
->shared
&& htab
->multi_subspace
)
2742 struct elf_link_hash_entry
**eh_syms
;
2743 struct elf_link_hash_entry
**eh_symend
;
2744 unsigned int symcount
;
2746 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
2747 - symtab_hdr
->sh_info
);
2748 eh_syms
= (struct elf_link_hash_entry
**) elf_sym_hashes (input_bfd
);
2749 eh_symend
= (struct elf_link_hash_entry
**) (eh_syms
+ symcount
);
2751 /* Look through the global syms for functions; We need to
2752 build export stubs for all globally visible functions. */
2753 for (; eh_syms
< eh_symend
; eh_syms
++)
2755 struct elf32_hppa_link_hash_entry
*hh
;
2757 hh
= hppa_elf_hash_entry (*eh_syms
);
2759 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
2760 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
2761 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
2763 /* At this point in the link, undefined syms have been
2764 resolved, so we need to check that the symbol was
2765 defined in this BFD. */
2766 if ((hh
->eh
.root
.type
== bfd_link_hash_defined
2767 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)
2768 && hh
->eh
.type
== STT_FUNC
2769 && hh
->eh
.root
.u
.def
.section
->output_section
!= NULL
2770 && (hh
->eh
.root
.u
.def
.section
->output_section
->owner
2772 && hh
->eh
.root
.u
.def
.section
->owner
== input_bfd
2773 && hh
->eh
.def_regular
2774 && !hh
->eh
.forced_local
2775 && ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
)
2778 const char *stub_name
;
2779 struct elf32_hppa_stub_hash_entry
*hsh
;
2781 sec
= hh
->eh
.root
.u
.def
.section
;
2782 stub_name
= hh_name (hh
);
2783 hsh
= hppa_stub_hash_lookup (&htab
->bstab
,
2788 hsh
= hppa_add_stub (stub_name
, sec
, htab
);
2792 hsh
->target_value
= hh
->eh
.root
.u
.def
.value
;
2793 hsh
->target_section
= hh
->eh
.root
.u
.def
.section
;
2794 hsh
->stub_type
= hppa_stub_export
;
2800 (*_bfd_error_handler
) (_("%B: duplicate export stub %s"),
2809 return stub_changed
;
2812 /* Determine and set the size of the stub section for a final link.
2814 The basic idea here is to examine all the relocations looking for
2815 PC-relative calls to a target that is unreachable with a "bl"
2819 elf32_hppa_size_stubs
2820 (bfd
*output_bfd
, bfd
*stub_bfd
, struct bfd_link_info
*info
,
2821 bfd_boolean multi_subspace
, bfd_signed_vma group_size
,
2822 asection
* (*add_stub_section
) (const char *, asection
*),
2823 void (*layout_sections_again
) (void))
2825 bfd_size_type stub_group_size
;
2826 bfd_boolean stubs_always_before_branch
;
2827 bfd_boolean stub_changed
;
2828 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2830 /* Stash our params away. */
2831 htab
->stub_bfd
= stub_bfd
;
2832 htab
->multi_subspace
= multi_subspace
;
2833 htab
->add_stub_section
= add_stub_section
;
2834 htab
->layout_sections_again
= layout_sections_again
;
2835 stubs_always_before_branch
= group_size
< 0;
2837 stub_group_size
= -group_size
;
2839 stub_group_size
= group_size
;
2840 if (stub_group_size
== 1)
2842 /* Default values. */
2843 if (stubs_always_before_branch
)
2845 stub_group_size
= 7680000;
2846 if (htab
->has_17bit_branch
|| htab
->multi_subspace
)
2847 stub_group_size
= 240000;
2848 if (htab
->has_12bit_branch
)
2849 stub_group_size
= 7500;
2853 stub_group_size
= 6971392;
2854 if (htab
->has_17bit_branch
|| htab
->multi_subspace
)
2855 stub_group_size
= 217856;
2856 if (htab
->has_12bit_branch
)
2857 stub_group_size
= 6808;
2861 group_sections (htab
, stub_group_size
, stubs_always_before_branch
);
2863 switch (get_local_syms (output_bfd
, info
->input_bfds
, info
))
2866 if (htab
->all_local_syms
)
2867 goto error_ret_free_local
;
2871 stub_changed
= FALSE
;
2875 stub_changed
= TRUE
;
2882 unsigned int bfd_indx
;
2885 for (input_bfd
= info
->input_bfds
, bfd_indx
= 0;
2887 input_bfd
= input_bfd
->link_next
, bfd_indx
++)
2889 Elf_Internal_Shdr
*symtab_hdr
;
2891 Elf_Internal_Sym
*local_syms
;
2893 /* We'll need the symbol table in a second. */
2894 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2895 if (symtab_hdr
->sh_info
== 0)
2898 local_syms
= htab
->all_local_syms
[bfd_indx
];
2900 /* Walk over each section attached to the input bfd. */
2901 for (section
= input_bfd
->sections
;
2903 section
= section
->next
)
2905 Elf_Internal_Rela
*internal_relocs
, *irelaend
, *irela
;
2907 /* If there aren't any relocs, then there's nothing more
2909 if ((section
->flags
& SEC_RELOC
) == 0
2910 || section
->reloc_count
== 0)
2913 /* If this section is a link-once section that will be
2914 discarded, then don't create any stubs. */
2915 if (section
->output_section
== NULL
2916 || section
->output_section
->owner
!= output_bfd
)
2919 /* Get the relocs. */
2921 = _bfd_elf_link_read_relocs (input_bfd
, section
, NULL
, NULL
,
2923 if (internal_relocs
== NULL
)
2924 goto error_ret_free_local
;
2926 /* Now examine each relocation. */
2927 irela
= internal_relocs
;
2928 irelaend
= irela
+ section
->reloc_count
;
2929 for (; irela
< irelaend
; irela
++)
2931 unsigned int r_type
, r_indx
;
2932 enum elf32_hppa_stub_type stub_type
;
2933 struct elf32_hppa_stub_hash_entry
*hsh
;
2936 bfd_vma destination
;
2937 struct elf32_hppa_link_hash_entry
*hh
;
2939 const asection
*id_sec
;
2941 r_type
= ELF32_R_TYPE (irela
->r_info
);
2942 r_indx
= ELF32_R_SYM (irela
->r_info
);
2944 if (r_type
>= (unsigned int) R_PARISC_UNIMPLEMENTED
)
2946 bfd_set_error (bfd_error_bad_value
);
2947 error_ret_free_internal
:
2948 if (elf_section_data (section
)->relocs
== NULL
)
2949 free (internal_relocs
);
2950 goto error_ret_free_local
;
2953 /* Only look for stubs on call instructions. */
2954 if (r_type
!= (unsigned int) R_PARISC_PCREL12F
2955 && r_type
!= (unsigned int) R_PARISC_PCREL17F
2956 && r_type
!= (unsigned int) R_PARISC_PCREL22F
)
2959 /* Now determine the call target, its name, value,
2965 if (r_indx
< symtab_hdr
->sh_info
)
2967 /* It's a local symbol. */
2968 Elf_Internal_Sym
*sym
;
2969 Elf_Internal_Shdr
*hdr
;
2971 sym
= local_syms
+ r_indx
;
2972 hdr
= elf_elfsections (input_bfd
)[sym
->st_shndx
];
2973 sym_sec
= hdr
->bfd_section
;
2974 if (ELF_ST_TYPE (sym
->st_info
) != STT_SECTION
)
2975 sym_value
= sym
->st_value
;
2976 destination
= (sym_value
+ irela
->r_addend
2977 + sym_sec
->output_offset
2978 + sym_sec
->output_section
->vma
);
2982 /* It's an external symbol. */
2985 e_indx
= r_indx
- symtab_hdr
->sh_info
;
2986 hh
= hppa_elf_hash_entry (elf_sym_hashes (input_bfd
)[e_indx
]);
2988 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
2989 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
2990 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
2992 if (hh
->eh
.root
.type
== bfd_link_hash_defined
2993 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)
2995 sym_sec
= hh
->eh
.root
.u
.def
.section
;
2996 sym_value
= hh
->eh
.root
.u
.def
.value
;
2997 if (sym_sec
->output_section
!= NULL
)
2998 destination
= (sym_value
+ irela
->r_addend
2999 + sym_sec
->output_offset
3000 + sym_sec
->output_section
->vma
);
3002 else if (hh
->eh
.root
.type
== bfd_link_hash_undefweak
)
3007 else if (hh
->eh
.root
.type
== bfd_link_hash_undefined
)
3009 if (! (info
->unresolved_syms_in_objects
== RM_IGNORE
3010 && (ELF_ST_VISIBILITY (hh
->eh
.other
)
3012 && hh
->eh
.type
!= STT_PARISC_MILLI
))
3017 bfd_set_error (bfd_error_bad_value
);
3018 goto error_ret_free_internal
;
3022 /* Determine what (if any) linker stub is needed. */
3023 stub_type
= hppa_type_of_stub (section
, irela
, hh
,
3025 if (stub_type
== hppa_stub_none
)
3028 /* Support for grouping stub sections. */
3029 id_sec
= htab
->stub_group
[section
->id
].link_sec
;
3031 /* Get the name of this stub. */
3032 stub_name
= hppa_stub_name (id_sec
, sym_sec
, hh
, irela
);
3034 goto error_ret_free_internal
;
3036 hsh
= hppa_stub_hash_lookup (&htab
->bstab
,
3041 /* The proper stub has already been created. */
3046 hsh
= hppa_add_stub (stub_name
, section
, htab
);
3050 goto error_ret_free_internal
;
3053 hsh
->target_value
= sym_value
;
3054 hsh
->target_section
= sym_sec
;
3055 hsh
->stub_type
= stub_type
;
3058 if (stub_type
== hppa_stub_import
)
3059 hsh
->stub_type
= hppa_stub_import_shared
;
3060 else if (stub_type
== hppa_stub_long_branch
)
3061 hsh
->stub_type
= hppa_stub_long_branch_shared
;
3064 stub_changed
= TRUE
;
3067 /* We're done with the internal relocs, free them. */
3068 if (elf_section_data (section
)->relocs
== NULL
)
3069 free (internal_relocs
);
3076 /* OK, we've added some stubs. Find out the new size of the
3078 for (stub_sec
= htab
->stub_bfd
->sections
;
3080 stub_sec
= stub_sec
->next
)
3083 bfd_hash_traverse (&htab
->bstab
, hppa_size_one_stub
, htab
);
3085 /* Ask the linker to do its stuff. */
3086 (*htab
->layout_sections_again
) ();
3087 stub_changed
= FALSE
;
3090 free (htab
->all_local_syms
);
3093 error_ret_free_local
:
3094 free (htab
->all_local_syms
);
3098 /* For a final link, this function is called after we have sized the
3099 stubs to provide a value for __gp. */
3102 elf32_hppa_set_gp (bfd
*abfd
, struct bfd_link_info
*info
)
3104 struct bfd_link_hash_entry
*h
;
3105 asection
*sec
= NULL
;
3107 struct elf32_hppa_link_hash_table
*htab
;
3109 htab
= hppa_link_hash_table (info
);
3110 h
= bfd_link_hash_lookup (&htab
->etab
.root
, "$global$", FALSE
, FALSE
, FALSE
);
3113 && (h
->type
== bfd_link_hash_defined
3114 || h
->type
== bfd_link_hash_defweak
))
3116 gp_val
= h
->u
.def
.value
;
3117 sec
= h
->u
.def
.section
;
3121 asection
*splt
= bfd_get_section_by_name (abfd
, ".plt");
3122 asection
*sgot
= bfd_get_section_by_name (abfd
, ".got");
3124 /* Choose to point our LTP at, in this order, one of .plt, .got,
3125 or .data, if these sections exist. In the case of choosing
3126 .plt try to make the LTP ideal for addressing anywhere in the
3127 .plt or .got with a 14 bit signed offset. Typically, the end
3128 of the .plt is the start of the .got, so choose .plt + 0x2000
3129 if either the .plt or .got is larger than 0x2000. If both
3130 the .plt and .got are smaller than 0x2000, choose the end of
3131 the .plt section. */
3132 sec
= strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") == 0
3137 if (gp_val
> 0x2000 || (sgot
&& sgot
->size
> 0x2000))
3147 if (strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") != 0)
3149 /* We know we don't have a .plt. If .got is large,
3151 if (sec
->size
> 0x2000)
3157 /* No .plt or .got. Who cares what the LTP is? */
3158 sec
= bfd_get_section_by_name (abfd
, ".data");
3164 h
->type
= bfd_link_hash_defined
;
3165 h
->u
.def
.value
= gp_val
;
3167 h
->u
.def
.section
= sec
;
3169 h
->u
.def
.section
= bfd_abs_section_ptr
;
3173 if (sec
!= NULL
&& sec
->output_section
!= NULL
)
3174 gp_val
+= sec
->output_section
->vma
+ sec
->output_offset
;
3176 elf_gp (abfd
) = gp_val
;
3180 /* Build all the stubs associated with the current output file. The
3181 stubs are kept in a hash table attached to the main linker hash
3182 table. We also set up the .plt entries for statically linked PIC
3183 functions here. This function is called via hppaelf_finish in the
3187 elf32_hppa_build_stubs (struct bfd_link_info
*info
)
3190 struct bfd_hash_table
*table
;
3191 struct elf32_hppa_link_hash_table
*htab
;
3193 htab
= hppa_link_hash_table (info
);
3195 for (stub_sec
= htab
->stub_bfd
->sections
;
3197 stub_sec
= stub_sec
->next
)
3201 /* Allocate memory to hold the linker stubs. */
3202 size
= stub_sec
->size
;
3203 stub_sec
->contents
= bfd_zalloc (htab
->stub_bfd
, size
);
3204 if (stub_sec
->contents
== NULL
&& size
!= 0)
3209 /* Build the stubs as directed by the stub hash table. */
3210 table
= &htab
->bstab
;
3211 bfd_hash_traverse (table
, hppa_build_one_stub
, info
);
3216 /* Return the base vma address which should be subtracted from the real
3217 address when resolving a dtpoff relocation.
3218 This is PT_TLS segment p_vaddr. */
3221 dtpoff_base (struct bfd_link_info
*info
)
3223 /* If tls_sec is NULL, we should have signalled an error already. */
3224 if (elf_hash_table (info
)->tls_sec
== NULL
)
3226 return elf_hash_table (info
)->tls_sec
->vma
;
3229 /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3232 tpoff (struct bfd_link_info
*info
, bfd_vma address
)
3234 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
3236 /* If tls_sec is NULL, we should have signalled an error already. */
3237 if (htab
->tls_sec
== NULL
)
3239 /* hppa TLS ABI is variant I and static TLS block start just after
3240 tcbhead structure which has 2 pointer fields. */
3241 return (address
- htab
->tls_sec
->vma
3242 + align_power ((bfd_vma
) 8, htab
->tls_sec
->alignment_power
));
3245 /* Perform a final link. */
3248 elf32_hppa_final_link (bfd
*abfd
, struct bfd_link_info
*info
)
3250 /* Invoke the regular ELF linker to do all the work. */
3251 if (!bfd_elf_final_link (abfd
, info
))
3254 /* If we're producing a final executable, sort the contents of the
3256 return elf_hppa_sort_unwind (abfd
);
3259 /* Record the lowest address for the data and text segments. */
3262 hppa_record_segment_addr (bfd
*abfd
, asection
*section
, void *data
)
3264 struct elf32_hppa_link_hash_table
*htab
;
3266 htab
= (struct elf32_hppa_link_hash_table
*) data
;
3268 if ((section
->flags
& (SEC_ALLOC
| SEC_LOAD
)) == (SEC_ALLOC
| SEC_LOAD
))
3271 Elf_Internal_Phdr
*p
;
3273 p
= _bfd_elf_find_segment_containing_section (abfd
, section
->output_section
);
3274 BFD_ASSERT (p
!= NULL
);
3277 if ((section
->flags
& SEC_READONLY
) != 0)
3279 if (value
< htab
->text_segment_base
)
3280 htab
->text_segment_base
= value
;
3284 if (value
< htab
->data_segment_base
)
3285 htab
->data_segment_base
= value
;
3290 /* Perform a relocation as part of a final link. */
3292 static bfd_reloc_status_type
3293 final_link_relocate (asection
*input_section
,
3295 const Elf_Internal_Rela
*rela
,
3297 struct elf32_hppa_link_hash_table
*htab
,
3299 struct elf32_hppa_link_hash_entry
*hh
,
3300 struct bfd_link_info
*info
)
3303 unsigned int r_type
= ELF32_R_TYPE (rela
->r_info
);
3304 unsigned int orig_r_type
= r_type
;
3305 reloc_howto_type
*howto
= elf_hppa_howto_table
+ r_type
;
3306 int r_format
= howto
->bitsize
;
3307 enum hppa_reloc_field_selector_type_alt r_field
;
3308 bfd
*input_bfd
= input_section
->owner
;
3309 bfd_vma offset
= rela
->r_offset
;
3310 bfd_vma max_branch_offset
= 0;
3311 bfd_byte
*hit_data
= contents
+ offset
;
3312 bfd_signed_vma addend
= rela
->r_addend
;
3314 struct elf32_hppa_stub_hash_entry
*hsh
= NULL
;
3317 if (r_type
== R_PARISC_NONE
)
3318 return bfd_reloc_ok
;
3320 insn
= bfd_get_32 (input_bfd
, hit_data
);
3322 /* Find out where we are and where we're going. */
3323 location
= (offset
+
3324 input_section
->output_offset
+
3325 input_section
->output_section
->vma
);
3327 /* If we are not building a shared library, convert DLTIND relocs to
3333 case R_PARISC_DLTIND21L
:
3334 r_type
= R_PARISC_DPREL21L
;
3337 case R_PARISC_DLTIND14R
:
3338 r_type
= R_PARISC_DPREL14R
;
3341 case R_PARISC_DLTIND14F
:
3342 r_type
= R_PARISC_DPREL14F
;
3349 case R_PARISC_PCREL12F
:
3350 case R_PARISC_PCREL17F
:
3351 case R_PARISC_PCREL22F
:
3352 /* If this call should go via the plt, find the import stub in
3355 || sym_sec
->output_section
== NULL
3357 && hh
->eh
.plt
.offset
!= (bfd_vma
) -1
3358 && hh
->eh
.dynindx
!= -1
3361 || !hh
->eh
.def_regular
3362 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)))
3364 hsh
= hppa_get_stub_entry (input_section
, sym_sec
,
3368 value
= (hsh
->stub_offset
3369 + hsh
->stub_sec
->output_offset
3370 + hsh
->stub_sec
->output_section
->vma
);
3373 else if (sym_sec
== NULL
&& hh
!= NULL
3374 && hh
->eh
.root
.type
== bfd_link_hash_undefweak
)
3376 /* It's OK if undefined weak. Calls to undefined weak
3377 symbols behave as if the "called" function
3378 immediately returns. We can thus call to a weak
3379 function without first checking whether the function
3385 return bfd_reloc_undefined
;
3389 case R_PARISC_PCREL21L
:
3390 case R_PARISC_PCREL17C
:
3391 case R_PARISC_PCREL17R
:
3392 case R_PARISC_PCREL14R
:
3393 case R_PARISC_PCREL14F
:
3394 case R_PARISC_PCREL32
:
3395 /* Make it a pc relative offset. */
3400 case R_PARISC_DPREL21L
:
3401 case R_PARISC_DPREL14R
:
3402 case R_PARISC_DPREL14F
:
3403 /* Convert instructions that use the linkage table pointer (r19) to
3404 instructions that use the global data pointer (dp). This is the
3405 most efficient way of using PIC code in an incomplete executable,
3406 but the user must follow the standard runtime conventions for
3407 accessing data for this to work. */
3408 if (orig_r_type
== R_PARISC_DLTIND21L
)
3410 /* Convert addil instructions if the original reloc was a
3411 DLTIND21L. GCC sometimes uses a register other than r19 for
3412 the operation, so we must convert any addil instruction
3413 that uses this relocation. */
3414 if ((insn
& 0xfc000000) == ((int) OP_ADDIL
<< 26))
3417 /* We must have a ldil instruction. It's too hard to find
3418 and convert the associated add instruction, so issue an
3420 (*_bfd_error_handler
)
3421 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3428 else if (orig_r_type
== R_PARISC_DLTIND14F
)
3430 /* This must be a format 1 load/store. Change the base
3432 insn
= (insn
& 0xfc1ffff) | (27 << 21);
3435 /* For all the DP relative relocations, we need to examine the symbol's
3436 section. If it has no section or if it's a code section, then
3437 "data pointer relative" makes no sense. In that case we don't
3438 adjust the "value", and for 21 bit addil instructions, we change the
3439 source addend register from %dp to %r0. This situation commonly
3440 arises for undefined weak symbols and when a variable's "constness"
3441 is declared differently from the way the variable is defined. For
3442 instance: "extern int foo" with foo defined as "const int foo". */
3443 if (sym_sec
== NULL
|| (sym_sec
->flags
& SEC_CODE
) != 0)
3445 if ((insn
& ((0x3f << 26) | (0x1f << 21)))
3446 == (((int) OP_ADDIL
<< 26) | (27 << 21)))
3448 insn
&= ~ (0x1f << 21);
3450 /* Now try to make things easy for the dynamic linker. */
3456 case R_PARISC_DLTIND21L
:
3457 case R_PARISC_DLTIND14R
:
3458 case R_PARISC_DLTIND14F
:
3459 case R_PARISC_TLS_GD21L
:
3460 case R_PARISC_TLS_GD14R
:
3461 case R_PARISC_TLS_LDM21L
:
3462 case R_PARISC_TLS_LDM14R
:
3463 case R_PARISC_TLS_IE21L
:
3464 case R_PARISC_TLS_IE14R
:
3465 value
-= elf_gp (input_section
->output_section
->owner
);
3468 case R_PARISC_SEGREL32
:
3469 if ((sym_sec
->flags
& SEC_CODE
) != 0)
3470 value
-= htab
->text_segment_base
;
3472 value
-= htab
->data_segment_base
;
3481 case R_PARISC_DIR32
:
3482 case R_PARISC_DIR14F
:
3483 case R_PARISC_DIR17F
:
3484 case R_PARISC_PCREL17C
:
3485 case R_PARISC_PCREL14F
:
3486 case R_PARISC_PCREL32
:
3487 case R_PARISC_DPREL14F
:
3488 case R_PARISC_PLABEL32
:
3489 case R_PARISC_DLTIND14F
:
3490 case R_PARISC_SEGBASE
:
3491 case R_PARISC_SEGREL32
:
3492 case R_PARISC_TLS_DTPMOD32
:
3493 case R_PARISC_TLS_DTPOFF32
:
3494 case R_PARISC_TLS_TPREL32
:
3498 case R_PARISC_DLTIND21L
:
3499 case R_PARISC_PCREL21L
:
3500 case R_PARISC_PLABEL21L
:
3504 case R_PARISC_DIR21L
:
3505 case R_PARISC_DPREL21L
:
3506 case R_PARISC_TLS_GD21L
:
3507 case R_PARISC_TLS_LDM21L
:
3508 case R_PARISC_TLS_LDO21L
:
3509 case R_PARISC_TLS_IE21L
:
3510 case R_PARISC_TLS_LE21L
:
3514 case R_PARISC_PCREL17R
:
3515 case R_PARISC_PCREL14R
:
3516 case R_PARISC_PLABEL14R
:
3517 case R_PARISC_DLTIND14R
:
3521 case R_PARISC_DIR17R
:
3522 case R_PARISC_DIR14R
:
3523 case R_PARISC_DPREL14R
:
3524 case R_PARISC_TLS_GD14R
:
3525 case R_PARISC_TLS_LDM14R
:
3526 case R_PARISC_TLS_LDO14R
:
3527 case R_PARISC_TLS_IE14R
:
3528 case R_PARISC_TLS_LE14R
:
3532 case R_PARISC_PCREL12F
:
3533 case R_PARISC_PCREL17F
:
3534 case R_PARISC_PCREL22F
:
3537 if (r_type
== (unsigned int) R_PARISC_PCREL17F
)
3539 max_branch_offset
= (1 << (17-1)) << 2;
3541 else if (r_type
== (unsigned int) R_PARISC_PCREL12F
)
3543 max_branch_offset
= (1 << (12-1)) << 2;
3547 max_branch_offset
= (1 << (22-1)) << 2;
3550 /* sym_sec is NULL on undefined weak syms or when shared on
3551 undefined syms. We've already checked for a stub for the
3552 shared undefined case. */
3553 if (sym_sec
== NULL
)
3556 /* If the branch is out of reach, then redirect the
3557 call to the local stub for this function. */
3558 if (value
+ addend
+ max_branch_offset
>= 2*max_branch_offset
)
3560 hsh
= hppa_get_stub_entry (input_section
, sym_sec
,
3563 return bfd_reloc_undefined
;
3565 /* Munge up the value and addend so that we call the stub
3566 rather than the procedure directly. */
3567 value
= (hsh
->stub_offset
3568 + hsh
->stub_sec
->output_offset
3569 + hsh
->stub_sec
->output_section
->vma
3575 /* Something we don't know how to handle. */
3577 return bfd_reloc_notsupported
;
3580 /* Make sure we can reach the stub. */
3581 if (max_branch_offset
!= 0
3582 && value
+ addend
+ max_branch_offset
>= 2*max_branch_offset
)
3584 (*_bfd_error_handler
)
3585 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3589 hsh
->bh_root
.string
);
3590 bfd_set_error (bfd_error_bad_value
);
3591 return bfd_reloc_notsupported
;
3594 val
= hppa_field_adjust (value
, addend
, r_field
);
3598 case R_PARISC_PCREL12F
:
3599 case R_PARISC_PCREL17C
:
3600 case R_PARISC_PCREL17F
:
3601 case R_PARISC_PCREL17R
:
3602 case R_PARISC_PCREL22F
:
3603 case R_PARISC_DIR17F
:
3604 case R_PARISC_DIR17R
:
3605 /* This is a branch. Divide the offset by four.
3606 Note that we need to decide whether it's a branch or
3607 otherwise by inspecting the reloc. Inspecting insn won't
3608 work as insn might be from a .word directive. */
3616 insn
= hppa_rebuild_insn (insn
, val
, r_format
);
3618 /* Update the instruction word. */
3619 bfd_put_32 (input_bfd
, (bfd_vma
) insn
, hit_data
);
3620 return bfd_reloc_ok
;
3623 /* Relocate an HPPA ELF section. */
3626 elf32_hppa_relocate_section (bfd
*output_bfd
,
3627 struct bfd_link_info
*info
,
3629 asection
*input_section
,
3631 Elf_Internal_Rela
*relocs
,
3632 Elf_Internal_Sym
*local_syms
,
3633 asection
**local_sections
)
3635 bfd_vma
*local_got_offsets
;
3636 struct elf32_hppa_link_hash_table
*htab
;
3637 Elf_Internal_Shdr
*symtab_hdr
;
3638 Elf_Internal_Rela
*rela
;
3639 Elf_Internal_Rela
*relend
;
3641 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3643 htab
= hppa_link_hash_table (info
);
3644 local_got_offsets
= elf_local_got_offsets (input_bfd
);
3647 relend
= relocs
+ input_section
->reloc_count
;
3648 for (; rela
< relend
; rela
++)
3650 unsigned int r_type
;
3651 reloc_howto_type
*howto
;
3652 unsigned int r_symndx
;
3653 struct elf32_hppa_link_hash_entry
*hh
;
3654 Elf_Internal_Sym
*sym
;
3657 bfd_reloc_status_type rstatus
;
3658 const char *sym_name
;
3660 bfd_boolean warned_undef
;
3662 r_type
= ELF32_R_TYPE (rela
->r_info
);
3663 if (r_type
>= (unsigned int) R_PARISC_UNIMPLEMENTED
)
3665 bfd_set_error (bfd_error_bad_value
);
3668 if (r_type
== (unsigned int) R_PARISC_GNU_VTENTRY
3669 || r_type
== (unsigned int) R_PARISC_GNU_VTINHERIT
)
3672 r_symndx
= ELF32_R_SYM (rela
->r_info
);
3676 warned_undef
= FALSE
;
3677 if (r_symndx
< symtab_hdr
->sh_info
)
3679 /* This is a local symbol, h defaults to NULL. */
3680 sym
= local_syms
+ r_symndx
;
3681 sym_sec
= local_sections
[r_symndx
];
3682 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sym_sec
, rela
);
3686 struct elf_link_hash_entry
*eh
;
3687 bfd_boolean unresolved_reloc
;
3688 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
3690 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rela
,
3691 r_symndx
, symtab_hdr
, sym_hashes
,
3692 eh
, sym_sec
, relocation
,
3693 unresolved_reloc
, warned_undef
);
3695 if (!info
->relocatable
3697 && eh
->root
.type
!= bfd_link_hash_defined
3698 && eh
->root
.type
!= bfd_link_hash_defweak
3699 && eh
->root
.type
!= bfd_link_hash_undefweak
)
3701 if (info
->unresolved_syms_in_objects
== RM_IGNORE
3702 && ELF_ST_VISIBILITY (eh
->other
) == STV_DEFAULT
3703 && eh
->type
== STT_PARISC_MILLI
)
3705 if (! info
->callbacks
->undefined_symbol
3706 (info
, eh_name (eh
), input_bfd
,
3707 input_section
, rela
->r_offset
, FALSE
))
3709 warned_undef
= TRUE
;
3712 hh
= hppa_elf_hash_entry (eh
);
3715 if (sym_sec
!= NULL
&& elf_discarded_section (sym_sec
))
3717 /* For relocs against symbols from removed linkonce
3718 sections, or sections discarded by a linker script,
3719 we just want the section contents zeroed. Avoid any
3720 special processing. */
3721 _bfd_clear_contents (elf_hppa_howto_table
+ r_type
, input_bfd
,
3722 contents
+ rela
->r_offset
);
3728 if (info
->relocatable
)
3731 /* Do any required modifications to the relocation value, and
3732 determine what types of dynamic info we need to output, if
3737 case R_PARISC_DLTIND14F
:
3738 case R_PARISC_DLTIND14R
:
3739 case R_PARISC_DLTIND21L
:
3742 bfd_boolean do_got
= 0;
3744 /* Relocation is to the entry for this symbol in the
3745 global offset table. */
3750 off
= hh
->eh
.got
.offset
;
3751 dyn
= htab
->etab
.dynamic_sections_created
;
3752 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
,
3755 /* If we aren't going to call finish_dynamic_symbol,
3756 then we need to handle initialisation of the .got
3757 entry and create needed relocs here. Since the
3758 offset must always be a multiple of 4, we use the
3759 least significant bit to record whether we have
3760 initialised it already. */
3765 hh
->eh
.got
.offset
|= 1;
3772 /* Local symbol case. */
3773 if (local_got_offsets
== NULL
)
3776 off
= local_got_offsets
[r_symndx
];
3778 /* The offset must always be a multiple of 4. We use
3779 the least significant bit to record whether we have
3780 already generated the necessary reloc. */
3785 local_got_offsets
[r_symndx
] |= 1;
3794 /* Output a dynamic relocation for this GOT entry.
3795 In this case it is relative to the base of the
3796 object because the symbol index is zero. */
3797 Elf_Internal_Rela outrel
;
3799 asection
*sec
= htab
->srelgot
;
3801 outrel
.r_offset
= (off
3802 + htab
->sgot
->output_offset
3803 + htab
->sgot
->output_section
->vma
);
3804 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_DIR32
);
3805 outrel
.r_addend
= relocation
;
3806 loc
= sec
->contents
;
3807 loc
+= sec
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3808 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3811 bfd_put_32 (output_bfd
, relocation
,
3812 htab
->sgot
->contents
+ off
);
3815 if (off
>= (bfd_vma
) -2)
3818 /* Add the base of the GOT to the relocation value. */
3820 + htab
->sgot
->output_offset
3821 + htab
->sgot
->output_section
->vma
);
3825 case R_PARISC_SEGREL32
:
3826 /* If this is the first SEGREL relocation, then initialize
3827 the segment base values. */
3828 if (htab
->text_segment_base
== (bfd_vma
) -1)
3829 bfd_map_over_sections (output_bfd
, hppa_record_segment_addr
, htab
);
3832 case R_PARISC_PLABEL14R
:
3833 case R_PARISC_PLABEL21L
:
3834 case R_PARISC_PLABEL32
:
3835 if (htab
->etab
.dynamic_sections_created
)
3838 bfd_boolean do_plt
= 0;
3839 /* If we have a global symbol with a PLT slot, then
3840 redirect this relocation to it. */
3843 off
= hh
->eh
.plt
.offset
;
3844 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info
->shared
,
3847 /* In a non-shared link, adjust_dynamic_symbols
3848 isn't called for symbols forced local. We
3849 need to write out the plt entry here. */
3854 hh
->eh
.plt
.offset
|= 1;
3861 bfd_vma
*local_plt_offsets
;
3863 if (local_got_offsets
== NULL
)
3866 local_plt_offsets
= local_got_offsets
+ symtab_hdr
->sh_info
;
3867 off
= local_plt_offsets
[r_symndx
];
3869 /* As for the local .got entry case, we use the last
3870 bit to record whether we've already initialised
3871 this local .plt entry. */
3876 local_plt_offsets
[r_symndx
] |= 1;
3885 /* Output a dynamic IPLT relocation for this
3887 Elf_Internal_Rela outrel
;
3889 asection
*s
= htab
->srelplt
;
3891 outrel
.r_offset
= (off
3892 + htab
->splt
->output_offset
3893 + htab
->splt
->output_section
->vma
);
3894 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_IPLT
);
3895 outrel
.r_addend
= relocation
;
3897 loc
+= s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3898 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3902 bfd_put_32 (output_bfd
,
3904 htab
->splt
->contents
+ off
);
3905 bfd_put_32 (output_bfd
,
3906 elf_gp (htab
->splt
->output_section
->owner
),
3907 htab
->splt
->contents
+ off
+ 4);
3911 if (off
>= (bfd_vma
) -2)
3914 /* PLABELs contain function pointers. Relocation is to
3915 the entry for the function in the .plt. The magic +2
3916 offset signals to $$dyncall that the function pointer
3917 is in the .plt and thus has a gp pointer too.
3918 Exception: Undefined PLABELs should have a value of
3921 || (hh
->eh
.root
.type
!= bfd_link_hash_undefweak
3922 && hh
->eh
.root
.type
!= bfd_link_hash_undefined
))
3925 + htab
->splt
->output_offset
3926 + htab
->splt
->output_section
->vma
3931 /* Fall through and possibly emit a dynamic relocation. */
3933 case R_PARISC_DIR17F
:
3934 case R_PARISC_DIR17R
:
3935 case R_PARISC_DIR14F
:
3936 case R_PARISC_DIR14R
:
3937 case R_PARISC_DIR21L
:
3938 case R_PARISC_DPREL14F
:
3939 case R_PARISC_DPREL14R
:
3940 case R_PARISC_DPREL21L
:
3941 case R_PARISC_DIR32
:
3942 if ((input_section
->flags
& SEC_ALLOC
) == 0)
3945 /* The reloc types handled here and this conditional
3946 expression must match the code in ..check_relocs and
3947 allocate_dynrelocs. ie. We need exactly the same condition
3948 as in ..check_relocs, with some extra conditions (dynindx
3949 test in this case) to cater for relocs removed by
3950 allocate_dynrelocs. If you squint, the non-shared test
3951 here does indeed match the one in ..check_relocs, the
3952 difference being that here we test DEF_DYNAMIC as well as
3953 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3954 which is why we can't use just that test here.
3955 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3956 there all files have not been loaded. */
3959 || ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
3960 || hh
->eh
.root
.type
!= bfd_link_hash_undefweak
)
3961 && (IS_ABSOLUTE_RELOC (r_type
)
3962 || !SYMBOL_CALLS_LOCAL (info
, &hh
->eh
)))
3965 && hh
->eh
.dynindx
!= -1
3966 && !hh
->eh
.non_got_ref
3967 && ((ELIMINATE_COPY_RELOCS
3968 && hh
->eh
.def_dynamic
3969 && !hh
->eh
.def_regular
)
3970 || hh
->eh
.root
.type
== bfd_link_hash_undefweak
3971 || hh
->eh
.root
.type
== bfd_link_hash_undefined
)))
3973 Elf_Internal_Rela outrel
;
3978 /* When generating a shared object, these relocations
3979 are copied into the output file to be resolved at run
3982 outrel
.r_addend
= rela
->r_addend
;
3984 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
3986 skip
= (outrel
.r_offset
== (bfd_vma
) -1
3987 || outrel
.r_offset
== (bfd_vma
) -2);
3988 outrel
.r_offset
+= (input_section
->output_offset
3989 + input_section
->output_section
->vma
);
3993 memset (&outrel
, 0, sizeof (outrel
));
3996 && hh
->eh
.dynindx
!= -1
3998 || !IS_ABSOLUTE_RELOC (r_type
)
4001 || !hh
->eh
.def_regular
))
4003 outrel
.r_info
= ELF32_R_INFO (hh
->eh
.dynindx
, r_type
);
4005 else /* It's a local symbol, or one marked to become local. */
4009 /* Add the absolute offset of the symbol. */
4010 outrel
.r_addend
+= relocation
;
4012 /* Global plabels need to be processed by the
4013 dynamic linker so that functions have at most one
4014 fptr. For this reason, we need to differentiate
4015 between global and local plabels, which we do by
4016 providing the function symbol for a global plabel
4017 reloc, and no symbol for local plabels. */
4020 && sym_sec
->output_section
!= NULL
4021 && ! bfd_is_abs_section (sym_sec
))
4025 osec
= sym_sec
->output_section
;
4026 indx
= elf_section_data (osec
)->dynindx
;
4029 osec
= htab
->etab
.text_index_section
;
4030 indx
= elf_section_data (osec
)->dynindx
;
4032 BFD_ASSERT (indx
!= 0);
4034 /* We are turning this relocation into one
4035 against a section symbol, so subtract out the
4036 output section's address but not the offset
4037 of the input section in the output section. */
4038 outrel
.r_addend
-= osec
->vma
;
4041 outrel
.r_info
= ELF32_R_INFO (indx
, r_type
);
4043 sreloc
= elf_section_data (input_section
)->sreloc
;
4047 loc
= sreloc
->contents
;
4048 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4049 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4053 case R_PARISC_TLS_LDM21L
:
4054 case R_PARISC_TLS_LDM14R
:
4058 off
= htab
->tls_ldm_got
.offset
;
4063 Elf_Internal_Rela outrel
;
4066 outrel
.r_offset
= (off
4067 + htab
->sgot
->output_section
->vma
4068 + htab
->sgot
->output_offset
);
4069 outrel
.r_addend
= 0;
4070 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32
);
4071 loc
= htab
->srelgot
->contents
;
4072 loc
+= htab
->srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4074 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4075 htab
->tls_ldm_got
.offset
|= 1;
4078 /* Add the base of the GOT to the relocation value. */
4080 + htab
->sgot
->output_offset
4081 + htab
->sgot
->output_section
->vma
);
4086 case R_PARISC_TLS_LDO21L
:
4087 case R_PARISC_TLS_LDO14R
:
4088 relocation
-= dtpoff_base (info
);
4091 case R_PARISC_TLS_GD21L
:
4092 case R_PARISC_TLS_GD14R
:
4093 case R_PARISC_TLS_IE21L
:
4094 case R_PARISC_TLS_IE14R
:
4104 dyn
= htab
->etab
.dynamic_sections_created
;
4106 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, &hh
->eh
)
4108 || !SYMBOL_REFERENCES_LOCAL (info
, &hh
->eh
)))
4110 indx
= hh
->eh
.dynindx
;
4112 off
= hh
->eh
.got
.offset
;
4113 tls_type
= hh
->tls_type
;
4117 off
= local_got_offsets
[r_symndx
];
4118 tls_type
= hppa_elf_local_got_tls_type (input_bfd
)[r_symndx
];
4121 if (tls_type
== GOT_UNKNOWN
)
4128 bfd_boolean need_relocs
= FALSE
;
4129 Elf_Internal_Rela outrel
;
4130 bfd_byte
*loc
= NULL
;
4133 /* The GOT entries have not been initialized yet. Do it
4134 now, and emit any relocations. If both an IE GOT and a
4135 GD GOT are necessary, we emit the GD first. */
4137 if ((info
->shared
|| indx
!= 0)
4139 || ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
4140 || hh
->eh
.root
.type
!= bfd_link_hash_undefweak
))
4143 loc
= htab
->srelgot
->contents
;
4144 /* FIXME (CAO): Should this be reloc_count++ ? */
4145 loc
+= htab
->srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
4148 if (tls_type
& GOT_TLS_GD
)
4152 outrel
.r_offset
= (cur_off
4153 + htab
->sgot
->output_section
->vma
4154 + htab
->sgot
->output_offset
);
4155 outrel
.r_info
= ELF32_R_INFO (indx
,R_PARISC_TLS_DTPMOD32
);
4156 outrel
.r_addend
= 0;
4157 bfd_put_32 (output_bfd
, 0, htab
->sgot
->contents
+ cur_off
);
4158 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4159 htab
->srelgot
->reloc_count
++;
4160 loc
+= sizeof (Elf32_External_Rela
);
4163 bfd_put_32 (output_bfd
, relocation
- dtpoff_base (info
),
4164 htab
->sgot
->contents
+ cur_off
+ 4);
4167 bfd_put_32 (output_bfd
, 0,
4168 htab
->sgot
->contents
+ cur_off
+ 4);
4169 outrel
.r_info
= ELF32_R_INFO (indx
, R_PARISC_TLS_DTPOFF32
);
4170 outrel
.r_offset
+= 4;
4171 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,loc
);
4172 htab
->srelgot
->reloc_count
++;
4173 loc
+= sizeof (Elf32_External_Rela
);
4178 /* If we are not emitting relocations for a
4179 general dynamic reference, then we must be in a
4180 static link or an executable link with the
4181 symbol binding locally. Mark it as belonging
4182 to module 1, the executable. */
4183 bfd_put_32 (output_bfd
, 1,
4184 htab
->sgot
->contents
+ cur_off
);
4185 bfd_put_32 (output_bfd
, relocation
- dtpoff_base (info
),
4186 htab
->sgot
->contents
+ cur_off
+ 4);
4193 if (tls_type
& GOT_TLS_IE
)
4197 outrel
.r_offset
= (cur_off
4198 + htab
->sgot
->output_section
->vma
4199 + htab
->sgot
->output_offset
);
4200 outrel
.r_info
= ELF32_R_INFO (indx
, R_PARISC_TLS_TPREL32
);
4203 outrel
.r_addend
= relocation
- dtpoff_base (info
);
4205 outrel
.r_addend
= 0;
4207 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4208 htab
->srelgot
->reloc_count
++;
4209 loc
+= sizeof (Elf32_External_Rela
);
4212 bfd_put_32 (output_bfd
, tpoff (info
, relocation
),
4213 htab
->sgot
->contents
+ cur_off
);
4219 hh
->eh
.got
.offset
|= 1;
4221 local_got_offsets
[r_symndx
] |= 1;
4224 if ((tls_type
& GOT_TLS_GD
)
4225 && r_type
!= R_PARISC_TLS_GD21L
4226 && r_type
!= R_PARISC_TLS_GD14R
)
4227 off
+= 2 * GOT_ENTRY_SIZE
;
4229 /* Add the base of the GOT to the relocation value. */
4231 + htab
->sgot
->output_offset
4232 + htab
->sgot
->output_section
->vma
);
4237 case R_PARISC_TLS_LE21L
:
4238 case R_PARISC_TLS_LE14R
:
4240 relocation
= tpoff (info
, relocation
);
4249 rstatus
= final_link_relocate (input_section
, contents
, rela
, relocation
,
4250 htab
, sym_sec
, hh
, info
);
4252 if (rstatus
== bfd_reloc_ok
)
4256 sym_name
= hh_name (hh
);
4259 sym_name
= bfd_elf_string_from_elf_section (input_bfd
,
4260 symtab_hdr
->sh_link
,
4262 if (sym_name
== NULL
)
4264 if (*sym_name
== '\0')
4265 sym_name
= bfd_section_name (input_bfd
, sym_sec
);
4268 howto
= elf_hppa_howto_table
+ r_type
;
4270 if (rstatus
== bfd_reloc_undefined
|| rstatus
== bfd_reloc_notsupported
)
4272 if (rstatus
== bfd_reloc_notsupported
|| !warned_undef
)
4274 (*_bfd_error_handler
)
4275 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4278 (long) rela
->r_offset
,
4281 bfd_set_error (bfd_error_bad_value
);
4287 if (!((*info
->callbacks
->reloc_overflow
)
4288 (info
, (hh
? &hh
->eh
.root
: NULL
), sym_name
, howto
->name
,
4289 (bfd_vma
) 0, input_bfd
, input_section
, rela
->r_offset
)))
4297 /* Finish up dynamic symbol handling. We set the contents of various
4298 dynamic sections here. */
4301 elf32_hppa_finish_dynamic_symbol (bfd
*output_bfd
,
4302 struct bfd_link_info
*info
,
4303 struct elf_link_hash_entry
*eh
,
4304 Elf_Internal_Sym
*sym
)
4306 struct elf32_hppa_link_hash_table
*htab
;
4307 Elf_Internal_Rela rela
;
4310 htab
= hppa_link_hash_table (info
);
4312 if (eh
->plt
.offset
!= (bfd_vma
) -1)
4316 if (eh
->plt
.offset
& 1)
4319 /* This symbol has an entry in the procedure linkage table. Set
4322 The format of a plt entry is
4327 if (eh
->root
.type
== bfd_link_hash_defined
4328 || eh
->root
.type
== bfd_link_hash_defweak
)
4330 value
= eh
->root
.u
.def
.value
;
4331 if (eh
->root
.u
.def
.section
->output_section
!= NULL
)
4332 value
+= (eh
->root
.u
.def
.section
->output_offset
4333 + eh
->root
.u
.def
.section
->output_section
->vma
);
4336 /* Create a dynamic IPLT relocation for this entry. */
4337 rela
.r_offset
= (eh
->plt
.offset
4338 + htab
->splt
->output_offset
4339 + htab
->splt
->output_section
->vma
);
4340 if (eh
->dynindx
!= -1)
4342 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_IPLT
);
4347 /* This symbol has been marked to become local, and is
4348 used by a plabel so must be kept in the .plt. */
4349 rela
.r_info
= ELF32_R_INFO (0, R_PARISC_IPLT
);
4350 rela
.r_addend
= value
;
4353 loc
= htab
->srelplt
->contents
;
4354 loc
+= htab
->srelplt
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4355 bfd_elf32_swap_reloca_out (htab
->splt
->output_section
->owner
, &rela
, loc
);
4357 if (!eh
->def_regular
)
4359 /* Mark the symbol as undefined, rather than as defined in
4360 the .plt section. Leave the value alone. */
4361 sym
->st_shndx
= SHN_UNDEF
;
4365 if (eh
->got
.offset
!= (bfd_vma
) -1
4366 && (hppa_elf_hash_entry (eh
)->tls_type
& GOT_TLS_GD
) == 0
4367 && (hppa_elf_hash_entry (eh
)->tls_type
& GOT_TLS_IE
) == 0)
4369 /* This symbol has an entry in the global offset table. Set it
4372 rela
.r_offset
= ((eh
->got
.offset
&~ (bfd_vma
) 1)
4373 + htab
->sgot
->output_offset
4374 + htab
->sgot
->output_section
->vma
);
4376 /* If this is a -Bsymbolic link and the symbol is defined
4377 locally or was forced to be local because of a version file,
4378 we just want to emit a RELATIVE reloc. The entry in the
4379 global offset table will already have been initialized in the
4380 relocate_section function. */
4382 && (info
->symbolic
|| eh
->dynindx
== -1)
4385 rela
.r_info
= ELF32_R_INFO (0, R_PARISC_DIR32
);
4386 rela
.r_addend
= (eh
->root
.u
.def
.value
4387 + eh
->root
.u
.def
.section
->output_offset
4388 + eh
->root
.u
.def
.section
->output_section
->vma
);
4392 if ((eh
->got
.offset
& 1) != 0)
4395 bfd_put_32 (output_bfd
, 0, htab
->sgot
->contents
+ (eh
->got
.offset
& ~1));
4396 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_DIR32
);
4400 loc
= htab
->srelgot
->contents
;
4401 loc
+= htab
->srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4402 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4409 /* This symbol needs a copy reloc. Set it up. */
4411 if (! (eh
->dynindx
!= -1
4412 && (eh
->root
.type
== bfd_link_hash_defined
4413 || eh
->root
.type
== bfd_link_hash_defweak
)))
4416 sec
= htab
->srelbss
;
4418 rela
.r_offset
= (eh
->root
.u
.def
.value
4419 + eh
->root
.u
.def
.section
->output_offset
4420 + eh
->root
.u
.def
.section
->output_section
->vma
);
4422 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_COPY
);
4423 loc
= sec
->contents
+ sec
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4424 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4427 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4428 if (eh_name (eh
)[0] == '_'
4429 && (strcmp (eh_name (eh
), "_DYNAMIC") == 0
4430 || eh
== htab
->etab
.hgot
))
4432 sym
->st_shndx
= SHN_ABS
;
4438 /* Used to decide how to sort relocs in an optimal manner for the
4439 dynamic linker, before writing them out. */
4441 static enum elf_reloc_type_class
4442 elf32_hppa_reloc_type_class (const Elf_Internal_Rela
*rela
)
4444 /* Handle TLS relocs first; we don't want them to be marked
4445 relative by the "if (ELF32_R_SYM (rela->r_info) == 0)"
4447 switch ((int) ELF32_R_TYPE (rela
->r_info
))
4449 case R_PARISC_TLS_DTPMOD32
:
4450 case R_PARISC_TLS_DTPOFF32
:
4451 case R_PARISC_TLS_TPREL32
:
4452 return reloc_class_normal
;
4455 if (ELF32_R_SYM (rela
->r_info
) == 0)
4456 return reloc_class_relative
;
4458 switch ((int) ELF32_R_TYPE (rela
->r_info
))
4461 return reloc_class_plt
;
4463 return reloc_class_copy
;
4465 return reloc_class_normal
;
4469 /* Finish up the dynamic sections. */
4472 elf32_hppa_finish_dynamic_sections (bfd
*output_bfd
,
4473 struct bfd_link_info
*info
)
4476 struct elf32_hppa_link_hash_table
*htab
;
4479 htab
= hppa_link_hash_table (info
);
4480 dynobj
= htab
->etab
.dynobj
;
4482 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
4484 if (htab
->etab
.dynamic_sections_created
)
4486 Elf32_External_Dyn
*dyncon
, *dynconend
;
4491 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
4492 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
4493 for (; dyncon
< dynconend
; dyncon
++)
4495 Elf_Internal_Dyn dyn
;
4498 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4506 /* Use PLTGOT to set the GOT register. */
4507 dyn
.d_un
.d_ptr
= elf_gp (output_bfd
);
4512 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
4517 dyn
.d_un
.d_val
= s
->size
;
4521 /* Don't count procedure linkage table relocs in the
4522 overall reloc count. */
4526 dyn
.d_un
.d_val
-= s
->size
;
4530 /* We may not be using the standard ELF linker script.
4531 If .rela.plt is the first .rela section, we adjust
4532 DT_RELA to not include it. */
4536 if (dyn
.d_un
.d_ptr
!= s
->output_section
->vma
+ s
->output_offset
)
4538 dyn
.d_un
.d_ptr
+= s
->size
;
4542 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
4546 if (htab
->sgot
!= NULL
&& htab
->sgot
->size
!= 0)
4548 /* Fill in the first entry in the global offset table.
4549 We use it to point to our dynamic section, if we have one. */
4550 bfd_put_32 (output_bfd
,
4551 sdyn
? sdyn
->output_section
->vma
+ sdyn
->output_offset
: 0,
4552 htab
->sgot
->contents
);
4554 /* The second entry is reserved for use by the dynamic linker. */
4555 memset (htab
->sgot
->contents
+ GOT_ENTRY_SIZE
, 0, GOT_ENTRY_SIZE
);
4557 /* Set .got entry size. */
4558 elf_section_data (htab
->sgot
->output_section
)
4559 ->this_hdr
.sh_entsize
= GOT_ENTRY_SIZE
;
4562 if (htab
->splt
!= NULL
&& htab
->splt
->size
!= 0)
4564 /* Set plt entry size. */
4565 elf_section_data (htab
->splt
->output_section
)
4566 ->this_hdr
.sh_entsize
= PLT_ENTRY_SIZE
;
4568 if (htab
->need_plt_stub
)
4570 /* Set up the .plt stub. */
4571 memcpy (htab
->splt
->contents
4572 + htab
->splt
->size
- sizeof (plt_stub
),
4573 plt_stub
, sizeof (plt_stub
));
4575 if ((htab
->splt
->output_offset
4576 + htab
->splt
->output_section
->vma
4578 != (htab
->sgot
->output_offset
4579 + htab
->sgot
->output_section
->vma
))
4581 (*_bfd_error_handler
)
4582 (_(".got section not immediately after .plt section"));
4591 /* Called when writing out an object file to decide the type of a
4594 elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym
*elf_sym
, int type
)
4596 if (ELF_ST_TYPE (elf_sym
->st_info
) == STT_PARISC_MILLI
)
4597 return STT_PARISC_MILLI
;
4602 /* Misc BFD support code. */
4603 #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4604 #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4605 #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4606 #define elf_info_to_howto elf_hppa_info_to_howto
4607 #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4609 /* Stuff for the BFD linker. */
4610 #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4611 #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4612 #define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free
4613 #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4614 #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4615 #define elf_backend_check_relocs elf32_hppa_check_relocs
4616 #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4617 #define elf_backend_fake_sections elf_hppa_fake_sections
4618 #define elf_backend_relocate_section elf32_hppa_relocate_section
4619 #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4620 #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4621 #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4622 #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4623 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4624 #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4625 #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
4626 #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4627 #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4628 #define elf_backend_object_p elf32_hppa_object_p
4629 #define elf_backend_final_write_processing elf_hppa_final_write_processing
4630 #define elf_backend_post_process_headers _bfd_elf_set_osabi
4631 #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4632 #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4633 #define elf_backend_action_discarded elf_hppa_action_discarded
4635 #define elf_backend_can_gc_sections 1
4636 #define elf_backend_can_refcount 1
4637 #define elf_backend_plt_alignment 2
4638 #define elf_backend_want_got_plt 0
4639 #define elf_backend_plt_readonly 0
4640 #define elf_backend_want_plt_sym 0
4641 #define elf_backend_got_header_size 8
4642 #define elf_backend_rela_normal 1
4644 #define TARGET_BIG_SYM bfd_elf32_hppa_vec
4645 #define TARGET_BIG_NAME "elf32-hppa"
4646 #define ELF_ARCH bfd_arch_hppa
4647 #define ELF_MACHINE_CODE EM_PARISC
4648 #define ELF_MAXPAGESIZE 0x1000
4649 #define ELF_OSABI ELFOSABI_HPUX
4650 #define elf32_bed elf32_hppa_hpux_bed
4652 #include "elf32-target.h"
4654 #undef TARGET_BIG_SYM
4655 #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec
4656 #undef TARGET_BIG_NAME
4657 #define TARGET_BIG_NAME "elf32-hppa-linux"
4659 #define ELF_OSABI ELFOSABI_LINUX
4661 #define elf32_bed elf32_hppa_linux_bed
4663 #include "elf32-target.h"
4665 #undef TARGET_BIG_SYM
4666 #define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec
4667 #undef TARGET_BIG_NAME
4668 #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4670 #define ELF_OSABI ELFOSABI_NETBSD
4672 #define elf32_bed elf32_hppa_netbsd_bed
4674 #include "elf32-target.h"