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 elf_section_data (sec
)->local_dynrel
= NULL
;
1627 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1628 eh_syms
= elf_sym_hashes (abfd
);
1629 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1630 local_plt_refcounts
= local_got_refcounts
;
1631 if (local_plt_refcounts
!= NULL
)
1632 local_plt_refcounts
+= symtab_hdr
->sh_info
;
1634 relend
= relocs
+ sec
->reloc_count
;
1635 for (rela
= relocs
; rela
< relend
; rela
++)
1637 unsigned long r_symndx
;
1638 unsigned int r_type
;
1639 struct elf_link_hash_entry
*eh
= NULL
;
1641 r_symndx
= ELF32_R_SYM (rela
->r_info
);
1642 if (r_symndx
>= symtab_hdr
->sh_info
)
1644 struct elf32_hppa_link_hash_entry
*hh
;
1645 struct elf32_hppa_dyn_reloc_entry
**hdh_pp
;
1646 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1648 eh
= eh_syms
[r_symndx
- symtab_hdr
->sh_info
];
1649 while (eh
->root
.type
== bfd_link_hash_indirect
1650 || eh
->root
.type
== bfd_link_hash_warning
)
1651 eh
= (struct elf_link_hash_entry
*) eh
->root
.u
.i
.link
;
1652 hh
= hppa_elf_hash_entry (eh
);
1654 for (hdh_pp
= &hh
->dyn_relocs
; (hdh_p
= *hdh_pp
) != NULL
; hdh_pp
= &hdh_p
->hdh_next
)
1655 if (hdh_p
->sec
== sec
)
1657 /* Everything must go for SEC. */
1658 *hdh_pp
= hdh_p
->hdh_next
;
1663 r_type
= ELF32_R_TYPE (rela
->r_info
);
1664 r_type
= elf32_hppa_optimized_tls_reloc (info
, r_type
, eh
!= NULL
);
1668 case R_PARISC_DLTIND14F
:
1669 case R_PARISC_DLTIND14R
:
1670 case R_PARISC_DLTIND21L
:
1671 case R_PARISC_TLS_GD21L
:
1672 case R_PARISC_TLS_GD14R
:
1673 case R_PARISC_TLS_IE21L
:
1674 case R_PARISC_TLS_IE14R
:
1677 if (eh
->got
.refcount
> 0)
1678 eh
->got
.refcount
-= 1;
1680 else if (local_got_refcounts
!= NULL
)
1682 if (local_got_refcounts
[r_symndx
] > 0)
1683 local_got_refcounts
[r_symndx
] -= 1;
1687 case R_PARISC_TLS_LDM21L
:
1688 case R_PARISC_TLS_LDM14R
:
1689 hppa_link_hash_table (info
)->tls_ldm_got
.refcount
-= 1;
1692 case R_PARISC_PCREL12F
:
1693 case R_PARISC_PCREL17C
:
1694 case R_PARISC_PCREL17F
:
1695 case R_PARISC_PCREL22F
:
1698 if (eh
->plt
.refcount
> 0)
1699 eh
->plt
.refcount
-= 1;
1703 case R_PARISC_PLABEL14R
:
1704 case R_PARISC_PLABEL21L
:
1705 case R_PARISC_PLABEL32
:
1708 if (eh
->plt
.refcount
> 0)
1709 eh
->plt
.refcount
-= 1;
1711 else if (local_plt_refcounts
!= NULL
)
1713 if (local_plt_refcounts
[r_symndx
] > 0)
1714 local_plt_refcounts
[r_symndx
] -= 1;
1726 /* Support for core dump NOTE sections. */
1729 elf32_hppa_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
1734 switch (note
->descsz
)
1739 case 396: /* Linux/hppa */
1741 elf_tdata (abfd
)->core_signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
1744 elf_tdata (abfd
)->core_pid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
1753 /* Make a ".reg/999" section. */
1754 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
1755 size
, note
->descpos
+ offset
);
1759 elf32_hppa_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
1761 switch (note
->descsz
)
1766 case 124: /* Linux/hppa elf_prpsinfo. */
1767 elf_tdata (abfd
)->core_program
1768 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
1769 elf_tdata (abfd
)->core_command
1770 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
1773 /* Note that for some reason, a spurious space is tacked
1774 onto the end of the args in some (at least one anyway)
1775 implementations, so strip it off if it exists. */
1777 char *command
= elf_tdata (abfd
)->core_command
;
1778 int n
= strlen (command
);
1780 if (0 < n
&& command
[n
- 1] == ' ')
1781 command
[n
- 1] = '\0';
1787 /* Our own version of hide_symbol, so that we can keep plt entries for
1791 elf32_hppa_hide_symbol (struct bfd_link_info
*info
,
1792 struct elf_link_hash_entry
*eh
,
1793 bfd_boolean force_local
)
1797 eh
->forced_local
= 1;
1798 if (eh
->dynindx
!= -1)
1801 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
1806 if (! hppa_elf_hash_entry (eh
)->plabel
)
1809 eh
->plt
= elf_hash_table (info
)->init_plt_refcount
;
1813 /* Adjust a symbol defined by a dynamic object and referenced by a
1814 regular object. The current definition is in some section of the
1815 dynamic object, but we're not including those sections. We have to
1816 change the definition to something the rest of the link can
1820 elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info
*info
,
1821 struct elf_link_hash_entry
*eh
)
1823 struct elf32_hppa_link_hash_table
*htab
;
1826 /* If this is a function, put it in the procedure linkage table. We
1827 will fill in the contents of the procedure linkage table later. */
1828 if (eh
->type
== STT_FUNC
1831 if (eh
->plt
.refcount
<= 0
1833 && eh
->root
.type
!= bfd_link_hash_defweak
1834 && ! hppa_elf_hash_entry (eh
)->plabel
1835 && (!info
->shared
|| info
->symbolic
)))
1837 /* The .plt entry is not needed when:
1838 a) Garbage collection has removed all references to the
1840 b) We know for certain the symbol is defined in this
1841 object, and it's not a weak definition, nor is the symbol
1842 used by a plabel relocation. Either this object is the
1843 application or we are doing a shared symbolic link. */
1845 eh
->plt
.offset
= (bfd_vma
) -1;
1852 eh
->plt
.offset
= (bfd_vma
) -1;
1854 /* If this is a weak symbol, and there is a real definition, the
1855 processor independent code will have arranged for us to see the
1856 real definition first, and we can just use the same value. */
1857 if (eh
->u
.weakdef
!= NULL
)
1859 if (eh
->u
.weakdef
->root
.type
!= bfd_link_hash_defined
1860 && eh
->u
.weakdef
->root
.type
!= bfd_link_hash_defweak
)
1862 eh
->root
.u
.def
.section
= eh
->u
.weakdef
->root
.u
.def
.section
;
1863 eh
->root
.u
.def
.value
= eh
->u
.weakdef
->root
.u
.def
.value
;
1864 if (ELIMINATE_COPY_RELOCS
)
1865 eh
->non_got_ref
= eh
->u
.weakdef
->non_got_ref
;
1869 /* This is a reference to a symbol defined by a dynamic object which
1870 is not a function. */
1872 /* If we are creating a shared library, we must presume that the
1873 only references to the symbol are via the global offset table.
1874 For such cases we need not do anything here; the relocations will
1875 be handled correctly by relocate_section. */
1879 /* If there are no references to this symbol that do not use the
1880 GOT, we don't need to generate a copy reloc. */
1881 if (!eh
->non_got_ref
)
1884 if (ELIMINATE_COPY_RELOCS
)
1886 struct elf32_hppa_link_hash_entry
*hh
;
1887 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
1889 hh
= hppa_elf_hash_entry (eh
);
1890 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
1892 sec
= hdh_p
->sec
->output_section
;
1893 if (sec
!= NULL
&& (sec
->flags
& SEC_READONLY
) != 0)
1897 /* If we didn't find any dynamic relocs in read-only sections, then
1898 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1901 eh
->non_got_ref
= 0;
1908 (*_bfd_error_handler
) (_("dynamic variable `%s' is zero size"),
1909 eh
->root
.root
.string
);
1913 /* We must allocate the symbol in our .dynbss section, which will
1914 become part of the .bss section of the executable. There will be
1915 an entry for this symbol in the .dynsym section. The dynamic
1916 object will contain position independent code, so all references
1917 from the dynamic object to this symbol will go through the global
1918 offset table. The dynamic linker will use the .dynsym entry to
1919 determine the address it must put in the global offset table, so
1920 both the dynamic object and the regular object will refer to the
1921 same memory location for the variable. */
1923 htab
= hppa_link_hash_table (info
);
1925 /* We must generate a COPY reloc to tell the dynamic linker to
1926 copy the initial value out of the dynamic object and into the
1927 runtime process image. */
1928 if ((eh
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
1930 htab
->srelbss
->size
+= sizeof (Elf32_External_Rela
);
1934 sec
= htab
->sdynbss
;
1936 return _bfd_elf_adjust_dynamic_copy (eh
, sec
);
1939 /* Allocate space in the .plt for entries that won't have relocations.
1940 ie. plabel entries. */
1943 allocate_plt_static (struct elf_link_hash_entry
*eh
, void *inf
)
1945 struct bfd_link_info
*info
;
1946 struct elf32_hppa_link_hash_table
*htab
;
1947 struct elf32_hppa_link_hash_entry
*hh
;
1950 if (eh
->root
.type
== bfd_link_hash_indirect
)
1953 if (eh
->root
.type
== bfd_link_hash_warning
)
1954 eh
= (struct elf_link_hash_entry
*) eh
->root
.u
.i
.link
;
1956 info
= (struct bfd_link_info
*) inf
;
1957 hh
= hppa_elf_hash_entry (eh
);
1958 htab
= hppa_link_hash_table (info
);
1959 if (htab
->etab
.dynamic_sections_created
1960 && eh
->plt
.refcount
> 0)
1962 /* Make sure this symbol is output as a dynamic symbol.
1963 Undefined weak syms won't yet be marked as dynamic. */
1964 if (eh
->dynindx
== -1
1965 && !eh
->forced_local
1966 && eh
->type
!= STT_PARISC_MILLI
)
1968 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
1972 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info
->shared
, eh
))
1974 /* Allocate these later. From this point on, h->plabel
1975 means that the plt entry is only used by a plabel.
1976 We'll be using a normal plt entry for this symbol, so
1977 clear the plabel indicator. */
1981 else if (hh
->plabel
)
1983 /* Make an entry in the .plt section for plabel references
1984 that won't have a .plt entry for other reasons. */
1986 eh
->plt
.offset
= sec
->size
;
1987 sec
->size
+= PLT_ENTRY_SIZE
;
1991 /* No .plt entry needed. */
1992 eh
->plt
.offset
= (bfd_vma
) -1;
1998 eh
->plt
.offset
= (bfd_vma
) -1;
2005 /* Allocate space in .plt, .got and associated reloc sections for
2009 allocate_dynrelocs (struct elf_link_hash_entry
*eh
, void *inf
)
2011 struct bfd_link_info
*info
;
2012 struct elf32_hppa_link_hash_table
*htab
;
2014 struct elf32_hppa_link_hash_entry
*hh
;
2015 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
2017 if (eh
->root
.type
== bfd_link_hash_indirect
)
2020 if (eh
->root
.type
== bfd_link_hash_warning
)
2021 eh
= (struct elf_link_hash_entry
*) eh
->root
.u
.i
.link
;
2024 htab
= hppa_link_hash_table (info
);
2025 hh
= hppa_elf_hash_entry (eh
);
2027 if (htab
->etab
.dynamic_sections_created
2028 && eh
->plt
.offset
!= (bfd_vma
) -1
2030 && eh
->plt
.refcount
> 0)
2032 /* Make an entry in the .plt section. */
2034 eh
->plt
.offset
= sec
->size
;
2035 sec
->size
+= PLT_ENTRY_SIZE
;
2037 /* We also need to make an entry in the .rela.plt section. */
2038 htab
->srelplt
->size
+= sizeof (Elf32_External_Rela
);
2039 htab
->need_plt_stub
= 1;
2042 if (eh
->got
.refcount
> 0)
2044 /* Make sure this symbol is output as a dynamic symbol.
2045 Undefined weak syms won't yet be marked as dynamic. */
2046 if (eh
->dynindx
== -1
2047 && !eh
->forced_local
2048 && eh
->type
!= STT_PARISC_MILLI
)
2050 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
2055 eh
->got
.offset
= sec
->size
;
2056 sec
->size
+= GOT_ENTRY_SIZE
;
2057 /* R_PARISC_TLS_GD* needs two GOT entries */
2058 if ((hh
->tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2059 sec
->size
+= GOT_ENTRY_SIZE
* 2;
2060 else if ((hh
->tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2061 sec
->size
+= GOT_ENTRY_SIZE
;
2062 if (htab
->etab
.dynamic_sections_created
2064 || (eh
->dynindx
!= -1
2065 && !eh
->forced_local
)))
2067 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
2068 if ((hh
->tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2069 htab
->srelgot
->size
+= 2 * sizeof (Elf32_External_Rela
);
2070 else if ((hh
->tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2071 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
2075 eh
->got
.offset
= (bfd_vma
) -1;
2077 if (hh
->dyn_relocs
== NULL
)
2080 /* If this is a -Bsymbolic shared link, then we need to discard all
2081 space allocated for dynamic pc-relative relocs against symbols
2082 defined in a regular object. For the normal shared case, discard
2083 space for relocs that have become local due to symbol visibility
2087 #if RELATIVE_DYNRELOCS
2088 if (SYMBOL_CALLS_LOCAL (info
, eh
))
2090 struct elf32_hppa_dyn_reloc_entry
**hdh_pp
;
2092 for (hdh_pp
= &hh
->dyn_relocs
; (hdh_p
= *hdh_pp
) != NULL
; )
2094 hdh_p
->count
-= hdh_p
->relative_count
;
2095 hdh_p
->relative_count
= 0;
2096 if (hdh_p
->count
== 0)
2097 *hdh_pp
= hdh_p
->hdh_next
;
2099 hdh_pp
= &hdh_p
->hdh_next
;
2104 /* Also discard relocs on undefined weak syms with non-default
2106 if (hh
->dyn_relocs
!= NULL
2107 && eh
->root
.type
== bfd_link_hash_undefweak
)
2109 if (ELF_ST_VISIBILITY (eh
->other
) != STV_DEFAULT
)
2110 hh
->dyn_relocs
= NULL
;
2112 /* Make sure undefined weak symbols are output as a dynamic
2114 else if (eh
->dynindx
== -1
2115 && !eh
->forced_local
)
2117 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
2124 /* For the non-shared case, discard space for relocs against
2125 symbols which turn out to need copy relocs or are not
2128 if (!eh
->non_got_ref
2129 && ((ELIMINATE_COPY_RELOCS
2131 && !eh
->def_regular
)
2132 || (htab
->etab
.dynamic_sections_created
2133 && (eh
->root
.type
== bfd_link_hash_undefweak
2134 || eh
->root
.type
== bfd_link_hash_undefined
))))
2136 /* Make sure this symbol is output as a dynamic symbol.
2137 Undefined weak syms won't yet be marked as dynamic. */
2138 if (eh
->dynindx
== -1
2139 && !eh
->forced_local
2140 && eh
->type
!= STT_PARISC_MILLI
)
2142 if (! bfd_elf_link_record_dynamic_symbol (info
, eh
))
2146 /* If that succeeded, we know we'll be keeping all the
2148 if (eh
->dynindx
!= -1)
2152 hh
->dyn_relocs
= NULL
;
2158 /* Finally, allocate space. */
2159 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
2161 asection
*sreloc
= elf_section_data (hdh_p
->sec
)->sreloc
;
2162 sreloc
->size
+= hdh_p
->count
* sizeof (Elf32_External_Rela
);
2168 /* This function is called via elf_link_hash_traverse to force
2169 millicode symbols local so they do not end up as globals in the
2170 dynamic symbol table. We ought to be able to do this in
2171 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2172 for all dynamic symbols. Arguably, this is a bug in
2173 elf_adjust_dynamic_symbol. */
2176 clobber_millicode_symbols (struct elf_link_hash_entry
*eh
,
2177 struct bfd_link_info
*info
)
2179 if (eh
->root
.type
== bfd_link_hash_warning
)
2180 eh
= (struct elf_link_hash_entry
*) eh
->root
.u
.i
.link
;
2182 if (eh
->type
== STT_PARISC_MILLI
2183 && !eh
->forced_local
)
2185 elf32_hppa_hide_symbol (info
, eh
, TRUE
);
2190 /* Find any dynamic relocs that apply to read-only sections. */
2193 readonly_dynrelocs (struct elf_link_hash_entry
*eh
, void *inf
)
2195 struct elf32_hppa_link_hash_entry
*hh
;
2196 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
2198 if (eh
->root
.type
== bfd_link_hash_warning
)
2199 eh
= (struct elf_link_hash_entry
*) eh
->root
.u
.i
.link
;
2201 hh
= hppa_elf_hash_entry (eh
);
2202 for (hdh_p
= hh
->dyn_relocs
; hdh_p
!= NULL
; hdh_p
= hdh_p
->hdh_next
)
2204 asection
*sec
= hdh_p
->sec
->output_section
;
2206 if (sec
!= NULL
&& (sec
->flags
& SEC_READONLY
) != 0)
2208 struct bfd_link_info
*info
= inf
;
2210 info
->flags
|= DF_TEXTREL
;
2212 /* Not an error, just cut short the traversal. */
2219 /* Set the sizes of the dynamic sections. */
2222 elf32_hppa_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2223 struct bfd_link_info
*info
)
2225 struct elf32_hppa_link_hash_table
*htab
;
2231 htab
= hppa_link_hash_table (info
);
2232 dynobj
= htab
->etab
.dynobj
;
2236 if (htab
->etab
.dynamic_sections_created
)
2238 /* Set the contents of the .interp section to the interpreter. */
2239 if (info
->executable
)
2241 sec
= bfd_get_section_by_name (dynobj
, ".interp");
2244 sec
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
2245 sec
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
2248 /* Force millicode symbols local. */
2249 elf_link_hash_traverse (&htab
->etab
,
2250 clobber_millicode_symbols
,
2254 /* Set up .got and .plt offsets for local syms, and space for local
2256 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
2258 bfd_signed_vma
*local_got
;
2259 bfd_signed_vma
*end_local_got
;
2260 bfd_signed_vma
*local_plt
;
2261 bfd_signed_vma
*end_local_plt
;
2262 bfd_size_type locsymcount
;
2263 Elf_Internal_Shdr
*symtab_hdr
;
2265 char *local_tls_type
;
2267 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2270 for (sec
= ibfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
2272 struct elf32_hppa_dyn_reloc_entry
*hdh_p
;
2274 for (hdh_p
= ((struct elf32_hppa_dyn_reloc_entry
*)
2275 elf_section_data (sec
)->local_dynrel
);
2277 hdh_p
= hdh_p
->hdh_next
)
2279 if (!bfd_is_abs_section (hdh_p
->sec
)
2280 && bfd_is_abs_section (hdh_p
->sec
->output_section
))
2282 /* Input section has been discarded, either because
2283 it is a copy of a linkonce section or due to
2284 linker script /DISCARD/, so we'll be discarding
2287 else if (hdh_p
->count
!= 0)
2289 srel
= elf_section_data (hdh_p
->sec
)->sreloc
;
2290 srel
->size
+= hdh_p
->count
* sizeof (Elf32_External_Rela
);
2291 if ((hdh_p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2292 info
->flags
|= DF_TEXTREL
;
2297 local_got
= elf_local_got_refcounts (ibfd
);
2301 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
2302 locsymcount
= symtab_hdr
->sh_info
;
2303 end_local_got
= local_got
+ locsymcount
;
2304 local_tls_type
= hppa_elf_local_got_tls_type (ibfd
);
2306 srel
= htab
->srelgot
;
2307 for (; local_got
< end_local_got
; ++local_got
)
2311 *local_got
= sec
->size
;
2312 sec
->size
+= GOT_ENTRY_SIZE
;
2313 if ((*local_tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2314 sec
->size
+= 2 * GOT_ENTRY_SIZE
;
2315 else if ((*local_tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2316 sec
->size
+= GOT_ENTRY_SIZE
;
2319 srel
->size
+= sizeof (Elf32_External_Rela
);
2320 if ((*local_tls_type
& (GOT_TLS_GD
| GOT_TLS_IE
)) == (GOT_TLS_GD
| GOT_TLS_IE
))
2321 srel
->size
+= 2 * sizeof (Elf32_External_Rela
);
2322 else if ((*local_tls_type
& GOT_TLS_GD
) == GOT_TLS_GD
)
2323 srel
->size
+= sizeof (Elf32_External_Rela
);
2327 *local_got
= (bfd_vma
) -1;
2332 local_plt
= end_local_got
;
2333 end_local_plt
= local_plt
+ locsymcount
;
2334 if (! htab
->etab
.dynamic_sections_created
)
2336 /* Won't be used, but be safe. */
2337 for (; local_plt
< end_local_plt
; ++local_plt
)
2338 *local_plt
= (bfd_vma
) -1;
2343 srel
= htab
->srelplt
;
2344 for (; local_plt
< end_local_plt
; ++local_plt
)
2348 *local_plt
= sec
->size
;
2349 sec
->size
+= PLT_ENTRY_SIZE
;
2351 srel
->size
+= sizeof (Elf32_External_Rela
);
2354 *local_plt
= (bfd_vma
) -1;
2359 if (htab
->tls_ldm_got
.refcount
> 0)
2361 /* Allocate 2 got entries and 1 dynamic reloc for
2362 R_PARISC_TLS_DTPMOD32 relocs. */
2363 htab
->tls_ldm_got
.offset
= htab
->sgot
->size
;
2364 htab
->sgot
->size
+= (GOT_ENTRY_SIZE
* 2);
2365 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
2368 htab
->tls_ldm_got
.offset
= -1;
2370 /* Do all the .plt entries without relocs first. The dynamic linker
2371 uses the last .plt reloc to find the end of the .plt (and hence
2372 the start of the .got) for lazy linking. */
2373 elf_link_hash_traverse (&htab
->etab
, allocate_plt_static
, info
);
2375 /* Allocate global sym .plt and .got entries, and space for global
2376 sym dynamic relocs. */
2377 elf_link_hash_traverse (&htab
->etab
, allocate_dynrelocs
, info
);
2379 /* The check_relocs and adjust_dynamic_symbol entry points have
2380 determined the sizes of the various dynamic sections. Allocate
2383 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
2385 if ((sec
->flags
& SEC_LINKER_CREATED
) == 0)
2388 if (sec
== htab
->splt
)
2390 if (htab
->need_plt_stub
)
2392 /* Make space for the plt stub at the end of the .plt
2393 section. We want this stub right at the end, up
2394 against the .got section. */
2395 int gotalign
= bfd_section_alignment (dynobj
, htab
->sgot
);
2396 int pltalign
= bfd_section_alignment (dynobj
, sec
);
2399 if (gotalign
> pltalign
)
2400 bfd_set_section_alignment (dynobj
, sec
, gotalign
);
2401 mask
= ((bfd_size_type
) 1 << gotalign
) - 1;
2402 sec
->size
= (sec
->size
+ sizeof (plt_stub
) + mask
) & ~mask
;
2405 else if (sec
== htab
->sgot
2406 || sec
== htab
->sdynbss
)
2408 else if (CONST_STRNEQ (bfd_get_section_name (dynobj
, sec
), ".rela"))
2412 /* Remember whether there are any reloc sections other
2414 if (sec
!= htab
->srelplt
)
2417 /* We use the reloc_count field as a counter if we need
2418 to copy relocs into the output file. */
2419 sec
->reloc_count
= 0;
2424 /* It's not one of our sections, so don't allocate space. */
2430 /* If we don't need this section, strip it from the
2431 output file. This is mostly to handle .rela.bss and
2432 .rela.plt. We must create both sections in
2433 create_dynamic_sections, because they must be created
2434 before the linker maps input sections to output
2435 sections. The linker does that before
2436 adjust_dynamic_symbol is called, and it is that
2437 function which decides whether anything needs to go
2438 into these sections. */
2439 sec
->flags
|= SEC_EXCLUDE
;
2443 if ((sec
->flags
& SEC_HAS_CONTENTS
) == 0)
2446 /* Allocate memory for the section contents. Zero it, because
2447 we may not fill in all the reloc sections. */
2448 sec
->contents
= bfd_zalloc (dynobj
, sec
->size
);
2449 if (sec
->contents
== NULL
)
2453 if (htab
->etab
.dynamic_sections_created
)
2455 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2456 actually has nothing to do with the PLT, it is how we
2457 communicate the LTP value of a load module to the dynamic
2459 #define add_dynamic_entry(TAG, VAL) \
2460 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2462 if (!add_dynamic_entry (DT_PLTGOT
, 0))
2465 /* Add some entries to the .dynamic section. We fill in the
2466 values later, in elf32_hppa_finish_dynamic_sections, but we
2467 must add the entries now so that we get the correct size for
2468 the .dynamic section. The DT_DEBUG entry is filled in by the
2469 dynamic linker and used by the debugger. */
2470 if (info
->executable
)
2472 if (!add_dynamic_entry (DT_DEBUG
, 0))
2476 if (htab
->srelplt
->size
!= 0)
2478 if (!add_dynamic_entry (DT_PLTRELSZ
, 0)
2479 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
2480 || !add_dynamic_entry (DT_JMPREL
, 0))
2486 if (!add_dynamic_entry (DT_RELA
, 0)
2487 || !add_dynamic_entry (DT_RELASZ
, 0)
2488 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
2491 /* If any dynamic relocs apply to a read-only section,
2492 then we need a DT_TEXTREL entry. */
2493 if ((info
->flags
& DF_TEXTREL
) == 0)
2494 elf_link_hash_traverse (&htab
->etab
, readonly_dynrelocs
, info
);
2496 if ((info
->flags
& DF_TEXTREL
) != 0)
2498 if (!add_dynamic_entry (DT_TEXTREL
, 0))
2503 #undef add_dynamic_entry
2508 /* External entry points for sizing and building linker stubs. */
2510 /* Set up various things so that we can make a list of input sections
2511 for each output section included in the link. Returns -1 on error,
2512 0 when no stubs will be needed, and 1 on success. */
2515 elf32_hppa_setup_section_lists (bfd
*output_bfd
, struct bfd_link_info
*info
)
2518 unsigned int bfd_count
;
2519 int top_id
, top_index
;
2521 asection
**input_list
, **list
;
2523 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2525 /* Count the number of input BFDs and find the top input section id. */
2526 for (input_bfd
= info
->input_bfds
, bfd_count
= 0, top_id
= 0;
2528 input_bfd
= input_bfd
->link_next
)
2531 for (section
= input_bfd
->sections
;
2533 section
= section
->next
)
2535 if (top_id
< section
->id
)
2536 top_id
= section
->id
;
2539 htab
->bfd_count
= bfd_count
;
2541 amt
= sizeof (struct map_stub
) * (top_id
+ 1);
2542 htab
->stub_group
= bfd_zmalloc (amt
);
2543 if (htab
->stub_group
== NULL
)
2546 /* We can't use output_bfd->section_count here to find the top output
2547 section index as some sections may have been removed, and
2548 strip_excluded_output_sections doesn't renumber the indices. */
2549 for (section
= output_bfd
->sections
, top_index
= 0;
2551 section
= section
->next
)
2553 if (top_index
< section
->index
)
2554 top_index
= section
->index
;
2557 htab
->top_index
= top_index
;
2558 amt
= sizeof (asection
*) * (top_index
+ 1);
2559 input_list
= bfd_malloc (amt
);
2560 htab
->input_list
= input_list
;
2561 if (input_list
== NULL
)
2564 /* For sections we aren't interested in, mark their entries with a
2565 value we can check later. */
2566 list
= input_list
+ top_index
;
2568 *list
= bfd_abs_section_ptr
;
2569 while (list
-- != input_list
);
2571 for (section
= output_bfd
->sections
;
2573 section
= section
->next
)
2575 if ((section
->flags
& SEC_CODE
) != 0)
2576 input_list
[section
->index
] = NULL
;
2582 /* The linker repeatedly calls this function for each input section,
2583 in the order that input sections are linked into output sections.
2584 Build lists of input sections to determine groupings between which
2585 we may insert linker stubs. */
2588 elf32_hppa_next_input_section (struct bfd_link_info
*info
, asection
*isec
)
2590 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2592 if (isec
->output_section
->index
<= htab
->top_index
)
2594 asection
**list
= htab
->input_list
+ isec
->output_section
->index
;
2595 if (*list
!= bfd_abs_section_ptr
)
2597 /* Steal the link_sec pointer for our list. */
2598 #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2599 /* This happens to make the list in reverse order,
2600 which is what we want. */
2601 PREV_SEC (isec
) = *list
;
2607 /* See whether we can group stub sections together. Grouping stub
2608 sections may result in fewer stubs. More importantly, we need to
2609 put all .init* and .fini* stubs at the beginning of the .init or
2610 .fini output sections respectively, because glibc splits the
2611 _init and _fini functions into multiple parts. Putting a stub in
2612 the middle of a function is not a good idea. */
2615 group_sections (struct elf32_hppa_link_hash_table
*htab
,
2616 bfd_size_type stub_group_size
,
2617 bfd_boolean stubs_always_before_branch
)
2619 asection
**list
= htab
->input_list
+ htab
->top_index
;
2622 asection
*tail
= *list
;
2623 if (tail
== bfd_abs_section_ptr
)
2625 while (tail
!= NULL
)
2629 bfd_size_type total
;
2630 bfd_boolean big_sec
;
2634 big_sec
= total
>= stub_group_size
;
2636 while ((prev
= PREV_SEC (curr
)) != NULL
2637 && ((total
+= curr
->output_offset
- prev
->output_offset
)
2641 /* OK, the size from the start of CURR to the end is less
2642 than 240000 bytes and thus can be handled by one stub
2643 section. (or the tail section is itself larger than
2644 240000 bytes, in which case we may be toast.)
2645 We should really be keeping track of the total size of
2646 stubs added here, as stubs contribute to the final output
2647 section size. That's a little tricky, and this way will
2648 only break if stubs added total more than 22144 bytes, or
2649 2768 long branch stubs. It seems unlikely for more than
2650 2768 different functions to be called, especially from
2651 code only 240000 bytes long. This limit used to be
2652 250000, but c++ code tends to generate lots of little
2653 functions, and sometimes violated the assumption. */
2656 prev
= PREV_SEC (tail
);
2657 /* Set up this stub group. */
2658 htab
->stub_group
[tail
->id
].link_sec
= curr
;
2660 while (tail
!= curr
&& (tail
= prev
) != NULL
);
2662 /* But wait, there's more! Input sections up to 240000
2663 bytes before the stub section can be handled by it too.
2664 Don't do this if we have a really large section after the
2665 stubs, as adding more stubs increases the chance that
2666 branches may not reach into the stub section. */
2667 if (!stubs_always_before_branch
&& !big_sec
)
2671 && ((total
+= tail
->output_offset
- prev
->output_offset
)
2675 prev
= PREV_SEC (tail
);
2676 htab
->stub_group
[tail
->id
].link_sec
= curr
;
2682 while (list
-- != htab
->input_list
);
2683 free (htab
->input_list
);
2687 /* Read in all local syms for all input bfds, and create hash entries
2688 for export stubs if we are building a multi-subspace shared lib.
2689 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2692 get_local_syms (bfd
*output_bfd
, bfd
*input_bfd
, struct bfd_link_info
*info
)
2694 unsigned int bfd_indx
;
2695 Elf_Internal_Sym
*local_syms
, **all_local_syms
;
2696 int stub_changed
= 0;
2697 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2699 /* We want to read in symbol extension records only once. To do this
2700 we need to read in the local symbols in parallel and save them for
2701 later use; so hold pointers to the local symbols in an array. */
2702 bfd_size_type amt
= sizeof (Elf_Internal_Sym
*) * htab
->bfd_count
;
2703 all_local_syms
= bfd_zmalloc (amt
);
2704 htab
->all_local_syms
= all_local_syms
;
2705 if (all_local_syms
== NULL
)
2708 /* Walk over all the input BFDs, swapping in local symbols.
2709 If we are creating a shared library, create hash entries for the
2713 input_bfd
= input_bfd
->link_next
, bfd_indx
++)
2715 Elf_Internal_Shdr
*symtab_hdr
;
2717 /* We'll need the symbol table in a second. */
2718 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2719 if (symtab_hdr
->sh_info
== 0)
2722 /* We need an array of the local symbols attached to the input bfd. */
2723 local_syms
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
2724 if (local_syms
== NULL
)
2726 local_syms
= bfd_elf_get_elf_syms (input_bfd
, symtab_hdr
,
2727 symtab_hdr
->sh_info
, 0,
2729 /* Cache them for elf_link_input_bfd. */
2730 symtab_hdr
->contents
= (unsigned char *) local_syms
;
2732 if (local_syms
== NULL
)
2735 all_local_syms
[bfd_indx
] = local_syms
;
2737 if (info
->shared
&& htab
->multi_subspace
)
2739 struct elf_link_hash_entry
**eh_syms
;
2740 struct elf_link_hash_entry
**eh_symend
;
2741 unsigned int symcount
;
2743 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
2744 - symtab_hdr
->sh_info
);
2745 eh_syms
= (struct elf_link_hash_entry
**) elf_sym_hashes (input_bfd
);
2746 eh_symend
= (struct elf_link_hash_entry
**) (eh_syms
+ symcount
);
2748 /* Look through the global syms for functions; We need to
2749 build export stubs for all globally visible functions. */
2750 for (; eh_syms
< eh_symend
; eh_syms
++)
2752 struct elf32_hppa_link_hash_entry
*hh
;
2754 hh
= hppa_elf_hash_entry (*eh_syms
);
2756 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
2757 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
2758 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
2760 /* At this point in the link, undefined syms have been
2761 resolved, so we need to check that the symbol was
2762 defined in this BFD. */
2763 if ((hh
->eh
.root
.type
== bfd_link_hash_defined
2764 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)
2765 && hh
->eh
.type
== STT_FUNC
2766 && hh
->eh
.root
.u
.def
.section
->output_section
!= NULL
2767 && (hh
->eh
.root
.u
.def
.section
->output_section
->owner
2769 && hh
->eh
.root
.u
.def
.section
->owner
== input_bfd
2770 && hh
->eh
.def_regular
2771 && !hh
->eh
.forced_local
2772 && ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
)
2775 const char *stub_name
;
2776 struct elf32_hppa_stub_hash_entry
*hsh
;
2778 sec
= hh
->eh
.root
.u
.def
.section
;
2779 stub_name
= hh_name (hh
);
2780 hsh
= hppa_stub_hash_lookup (&htab
->bstab
,
2785 hsh
= hppa_add_stub (stub_name
, sec
, htab
);
2789 hsh
->target_value
= hh
->eh
.root
.u
.def
.value
;
2790 hsh
->target_section
= hh
->eh
.root
.u
.def
.section
;
2791 hsh
->stub_type
= hppa_stub_export
;
2797 (*_bfd_error_handler
) (_("%B: duplicate export stub %s"),
2806 return stub_changed
;
2809 /* Determine and set the size of the stub section for a final link.
2811 The basic idea here is to examine all the relocations looking for
2812 PC-relative calls to a target that is unreachable with a "bl"
2816 elf32_hppa_size_stubs
2817 (bfd
*output_bfd
, bfd
*stub_bfd
, struct bfd_link_info
*info
,
2818 bfd_boolean multi_subspace
, bfd_signed_vma group_size
,
2819 asection
* (*add_stub_section
) (const char *, asection
*),
2820 void (*layout_sections_again
) (void))
2822 bfd_size_type stub_group_size
;
2823 bfd_boolean stubs_always_before_branch
;
2824 bfd_boolean stub_changed
;
2825 struct elf32_hppa_link_hash_table
*htab
= hppa_link_hash_table (info
);
2827 /* Stash our params away. */
2828 htab
->stub_bfd
= stub_bfd
;
2829 htab
->multi_subspace
= multi_subspace
;
2830 htab
->add_stub_section
= add_stub_section
;
2831 htab
->layout_sections_again
= layout_sections_again
;
2832 stubs_always_before_branch
= group_size
< 0;
2834 stub_group_size
= -group_size
;
2836 stub_group_size
= group_size
;
2837 if (stub_group_size
== 1)
2839 /* Default values. */
2840 if (stubs_always_before_branch
)
2842 stub_group_size
= 7680000;
2843 if (htab
->has_17bit_branch
|| htab
->multi_subspace
)
2844 stub_group_size
= 240000;
2845 if (htab
->has_12bit_branch
)
2846 stub_group_size
= 7500;
2850 stub_group_size
= 6971392;
2851 if (htab
->has_17bit_branch
|| htab
->multi_subspace
)
2852 stub_group_size
= 217856;
2853 if (htab
->has_12bit_branch
)
2854 stub_group_size
= 6808;
2858 group_sections (htab
, stub_group_size
, stubs_always_before_branch
);
2860 switch (get_local_syms (output_bfd
, info
->input_bfds
, info
))
2863 if (htab
->all_local_syms
)
2864 goto error_ret_free_local
;
2868 stub_changed
= FALSE
;
2872 stub_changed
= TRUE
;
2879 unsigned int bfd_indx
;
2882 for (input_bfd
= info
->input_bfds
, bfd_indx
= 0;
2884 input_bfd
= input_bfd
->link_next
, bfd_indx
++)
2886 Elf_Internal_Shdr
*symtab_hdr
;
2888 Elf_Internal_Sym
*local_syms
;
2890 /* We'll need the symbol table in a second. */
2891 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2892 if (symtab_hdr
->sh_info
== 0)
2895 local_syms
= htab
->all_local_syms
[bfd_indx
];
2897 /* Walk over each section attached to the input bfd. */
2898 for (section
= input_bfd
->sections
;
2900 section
= section
->next
)
2902 Elf_Internal_Rela
*internal_relocs
, *irelaend
, *irela
;
2904 /* If there aren't any relocs, then there's nothing more
2906 if ((section
->flags
& SEC_RELOC
) == 0
2907 || section
->reloc_count
== 0)
2910 /* If this section is a link-once section that will be
2911 discarded, then don't create any stubs. */
2912 if (section
->output_section
== NULL
2913 || section
->output_section
->owner
!= output_bfd
)
2916 /* Get the relocs. */
2918 = _bfd_elf_link_read_relocs (input_bfd
, section
, NULL
, NULL
,
2920 if (internal_relocs
== NULL
)
2921 goto error_ret_free_local
;
2923 /* Now examine each relocation. */
2924 irela
= internal_relocs
;
2925 irelaend
= irela
+ section
->reloc_count
;
2926 for (; irela
< irelaend
; irela
++)
2928 unsigned int r_type
, r_indx
;
2929 enum elf32_hppa_stub_type stub_type
;
2930 struct elf32_hppa_stub_hash_entry
*hsh
;
2933 bfd_vma destination
;
2934 struct elf32_hppa_link_hash_entry
*hh
;
2936 const asection
*id_sec
;
2938 r_type
= ELF32_R_TYPE (irela
->r_info
);
2939 r_indx
= ELF32_R_SYM (irela
->r_info
);
2941 if (r_type
>= (unsigned int) R_PARISC_UNIMPLEMENTED
)
2943 bfd_set_error (bfd_error_bad_value
);
2944 error_ret_free_internal
:
2945 if (elf_section_data (section
)->relocs
== NULL
)
2946 free (internal_relocs
);
2947 goto error_ret_free_local
;
2950 /* Only look for stubs on call instructions. */
2951 if (r_type
!= (unsigned int) R_PARISC_PCREL12F
2952 && r_type
!= (unsigned int) R_PARISC_PCREL17F
2953 && r_type
!= (unsigned int) R_PARISC_PCREL22F
)
2956 /* Now determine the call target, its name, value,
2962 if (r_indx
< symtab_hdr
->sh_info
)
2964 /* It's a local symbol. */
2965 Elf_Internal_Sym
*sym
;
2966 Elf_Internal_Shdr
*hdr
;
2968 sym
= local_syms
+ r_indx
;
2969 hdr
= elf_elfsections (input_bfd
)[sym
->st_shndx
];
2970 sym_sec
= hdr
->bfd_section
;
2971 if (ELF_ST_TYPE (sym
->st_info
) != STT_SECTION
)
2972 sym_value
= sym
->st_value
;
2973 destination
= (sym_value
+ irela
->r_addend
2974 + sym_sec
->output_offset
2975 + sym_sec
->output_section
->vma
);
2979 /* It's an external symbol. */
2982 e_indx
= r_indx
- symtab_hdr
->sh_info
;
2983 hh
= hppa_elf_hash_entry (elf_sym_hashes (input_bfd
)[e_indx
]);
2985 while (hh
->eh
.root
.type
== bfd_link_hash_indirect
2986 || hh
->eh
.root
.type
== bfd_link_hash_warning
)
2987 hh
= hppa_elf_hash_entry (hh
->eh
.root
.u
.i
.link
);
2989 if (hh
->eh
.root
.type
== bfd_link_hash_defined
2990 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)
2992 sym_sec
= hh
->eh
.root
.u
.def
.section
;
2993 sym_value
= hh
->eh
.root
.u
.def
.value
;
2994 if (sym_sec
->output_section
!= NULL
)
2995 destination
= (sym_value
+ irela
->r_addend
2996 + sym_sec
->output_offset
2997 + sym_sec
->output_section
->vma
);
2999 else if (hh
->eh
.root
.type
== bfd_link_hash_undefweak
)
3004 else if (hh
->eh
.root
.type
== bfd_link_hash_undefined
)
3006 if (! (info
->unresolved_syms_in_objects
== RM_IGNORE
3007 && (ELF_ST_VISIBILITY (hh
->eh
.other
)
3009 && hh
->eh
.type
!= STT_PARISC_MILLI
))
3014 bfd_set_error (bfd_error_bad_value
);
3015 goto error_ret_free_internal
;
3019 /* Determine what (if any) linker stub is needed. */
3020 stub_type
= hppa_type_of_stub (section
, irela
, hh
,
3022 if (stub_type
== hppa_stub_none
)
3025 /* Support for grouping stub sections. */
3026 id_sec
= htab
->stub_group
[section
->id
].link_sec
;
3028 /* Get the name of this stub. */
3029 stub_name
= hppa_stub_name (id_sec
, sym_sec
, hh
, irela
);
3031 goto error_ret_free_internal
;
3033 hsh
= hppa_stub_hash_lookup (&htab
->bstab
,
3038 /* The proper stub has already been created. */
3043 hsh
= hppa_add_stub (stub_name
, section
, htab
);
3047 goto error_ret_free_internal
;
3050 hsh
->target_value
= sym_value
;
3051 hsh
->target_section
= sym_sec
;
3052 hsh
->stub_type
= stub_type
;
3055 if (stub_type
== hppa_stub_import
)
3056 hsh
->stub_type
= hppa_stub_import_shared
;
3057 else if (stub_type
== hppa_stub_long_branch
)
3058 hsh
->stub_type
= hppa_stub_long_branch_shared
;
3061 stub_changed
= TRUE
;
3064 /* We're done with the internal relocs, free them. */
3065 if (elf_section_data (section
)->relocs
== NULL
)
3066 free (internal_relocs
);
3073 /* OK, we've added some stubs. Find out the new size of the
3075 for (stub_sec
= htab
->stub_bfd
->sections
;
3077 stub_sec
= stub_sec
->next
)
3080 bfd_hash_traverse (&htab
->bstab
, hppa_size_one_stub
, htab
);
3082 /* Ask the linker to do its stuff. */
3083 (*htab
->layout_sections_again
) ();
3084 stub_changed
= FALSE
;
3087 free (htab
->all_local_syms
);
3090 error_ret_free_local
:
3091 free (htab
->all_local_syms
);
3095 /* For a final link, this function is called after we have sized the
3096 stubs to provide a value for __gp. */
3099 elf32_hppa_set_gp (bfd
*abfd
, struct bfd_link_info
*info
)
3101 struct bfd_link_hash_entry
*h
;
3102 asection
*sec
= NULL
;
3104 struct elf32_hppa_link_hash_table
*htab
;
3106 htab
= hppa_link_hash_table (info
);
3107 h
= bfd_link_hash_lookup (&htab
->etab
.root
, "$global$", FALSE
, FALSE
, FALSE
);
3110 && (h
->type
== bfd_link_hash_defined
3111 || h
->type
== bfd_link_hash_defweak
))
3113 gp_val
= h
->u
.def
.value
;
3114 sec
= h
->u
.def
.section
;
3118 asection
*splt
= bfd_get_section_by_name (abfd
, ".plt");
3119 asection
*sgot
= bfd_get_section_by_name (abfd
, ".got");
3121 /* Choose to point our LTP at, in this order, one of .plt, .got,
3122 or .data, if these sections exist. In the case of choosing
3123 .plt try to make the LTP ideal for addressing anywhere in the
3124 .plt or .got with a 14 bit signed offset. Typically, the end
3125 of the .plt is the start of the .got, so choose .plt + 0x2000
3126 if either the .plt or .got is larger than 0x2000. If both
3127 the .plt and .got are smaller than 0x2000, choose the end of
3128 the .plt section. */
3129 sec
= strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") == 0
3134 if (gp_val
> 0x2000 || (sgot
&& sgot
->size
> 0x2000))
3144 if (strcmp (bfd_get_target (abfd
), "elf32-hppa-netbsd") != 0)
3146 /* We know we don't have a .plt. If .got is large,
3148 if (sec
->size
> 0x2000)
3154 /* No .plt or .got. Who cares what the LTP is? */
3155 sec
= bfd_get_section_by_name (abfd
, ".data");
3161 h
->type
= bfd_link_hash_defined
;
3162 h
->u
.def
.value
= gp_val
;
3164 h
->u
.def
.section
= sec
;
3166 h
->u
.def
.section
= bfd_abs_section_ptr
;
3170 if (sec
!= NULL
&& sec
->output_section
!= NULL
)
3171 gp_val
+= sec
->output_section
->vma
+ sec
->output_offset
;
3173 elf_gp (abfd
) = gp_val
;
3177 /* Build all the stubs associated with the current output file. The
3178 stubs are kept in a hash table attached to the main linker hash
3179 table. We also set up the .plt entries for statically linked PIC
3180 functions here. This function is called via hppaelf_finish in the
3184 elf32_hppa_build_stubs (struct bfd_link_info
*info
)
3187 struct bfd_hash_table
*table
;
3188 struct elf32_hppa_link_hash_table
*htab
;
3190 htab
= hppa_link_hash_table (info
);
3192 for (stub_sec
= htab
->stub_bfd
->sections
;
3194 stub_sec
= stub_sec
->next
)
3198 /* Allocate memory to hold the linker stubs. */
3199 size
= stub_sec
->size
;
3200 stub_sec
->contents
= bfd_zalloc (htab
->stub_bfd
, size
);
3201 if (stub_sec
->contents
== NULL
&& size
!= 0)
3206 /* Build the stubs as directed by the stub hash table. */
3207 table
= &htab
->bstab
;
3208 bfd_hash_traverse (table
, hppa_build_one_stub
, info
);
3213 /* Return the base vma address which should be subtracted from the real
3214 address when resolving a dtpoff relocation.
3215 This is PT_TLS segment p_vaddr. */
3218 dtpoff_base (struct bfd_link_info
*info
)
3220 /* If tls_sec is NULL, we should have signalled an error already. */
3221 if (elf_hash_table (info
)->tls_sec
== NULL
)
3223 return elf_hash_table (info
)->tls_sec
->vma
;
3226 /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3229 tpoff (struct bfd_link_info
*info
, bfd_vma address
)
3231 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
3233 /* If tls_sec is NULL, we should have signalled an error already. */
3234 if (htab
->tls_sec
== NULL
)
3236 /* hppa TLS ABI is variant I and static TLS block start just after
3237 tcbhead structure which has 2 pointer fields. */
3238 return (address
- htab
->tls_sec
->vma
3239 + align_power ((bfd_vma
) 8, htab
->tls_sec
->alignment_power
));
3242 /* Perform a final link. */
3245 elf32_hppa_final_link (bfd
*abfd
, struct bfd_link_info
*info
)
3247 /* Invoke the regular ELF linker to do all the work. */
3248 if (!bfd_elf_final_link (abfd
, info
))
3251 /* If we're producing a final executable, sort the contents of the
3253 return elf_hppa_sort_unwind (abfd
);
3256 /* Record the lowest address for the data and text segments. */
3259 hppa_record_segment_addr (bfd
*abfd ATTRIBUTE_UNUSED
,
3263 struct elf32_hppa_link_hash_table
*htab
;
3265 htab
= (struct elf32_hppa_link_hash_table
*) data
;
3267 if ((section
->flags
& (SEC_ALLOC
| SEC_LOAD
)) == (SEC_ALLOC
| SEC_LOAD
))
3269 bfd_vma value
= section
->vma
- section
->filepos
;
3271 if ((section
->flags
& SEC_READONLY
) != 0)
3273 if (value
< htab
->text_segment_base
)
3274 htab
->text_segment_base
= value
;
3278 if (value
< htab
->data_segment_base
)
3279 htab
->data_segment_base
= value
;
3284 /* Perform a relocation as part of a final link. */
3286 static bfd_reloc_status_type
3287 final_link_relocate (asection
*input_section
,
3289 const Elf_Internal_Rela
*rela
,
3291 struct elf32_hppa_link_hash_table
*htab
,
3293 struct elf32_hppa_link_hash_entry
*hh
,
3294 struct bfd_link_info
*info
)
3297 unsigned int r_type
= ELF32_R_TYPE (rela
->r_info
);
3298 unsigned int orig_r_type
= r_type
;
3299 reloc_howto_type
*howto
= elf_hppa_howto_table
+ r_type
;
3300 int r_format
= howto
->bitsize
;
3301 enum hppa_reloc_field_selector_type_alt r_field
;
3302 bfd
*input_bfd
= input_section
->owner
;
3303 bfd_vma offset
= rela
->r_offset
;
3304 bfd_vma max_branch_offset
= 0;
3305 bfd_byte
*hit_data
= contents
+ offset
;
3306 bfd_signed_vma addend
= rela
->r_addend
;
3308 struct elf32_hppa_stub_hash_entry
*hsh
= NULL
;
3311 if (r_type
== R_PARISC_NONE
)
3312 return bfd_reloc_ok
;
3314 insn
= bfd_get_32 (input_bfd
, hit_data
);
3316 /* Find out where we are and where we're going. */
3317 location
= (offset
+
3318 input_section
->output_offset
+
3319 input_section
->output_section
->vma
);
3321 /* If we are not building a shared library, convert DLTIND relocs to
3327 case R_PARISC_DLTIND21L
:
3328 r_type
= R_PARISC_DPREL21L
;
3331 case R_PARISC_DLTIND14R
:
3332 r_type
= R_PARISC_DPREL14R
;
3335 case R_PARISC_DLTIND14F
:
3336 r_type
= R_PARISC_DPREL14F
;
3343 case R_PARISC_PCREL12F
:
3344 case R_PARISC_PCREL17F
:
3345 case R_PARISC_PCREL22F
:
3346 /* If this call should go via the plt, find the import stub in
3349 || sym_sec
->output_section
== NULL
3351 && hh
->eh
.plt
.offset
!= (bfd_vma
) -1
3352 && hh
->eh
.dynindx
!= -1
3355 || !hh
->eh
.def_regular
3356 || hh
->eh
.root
.type
== bfd_link_hash_defweak
)))
3358 hsh
= hppa_get_stub_entry (input_section
, sym_sec
,
3362 value
= (hsh
->stub_offset
3363 + hsh
->stub_sec
->output_offset
3364 + hsh
->stub_sec
->output_section
->vma
);
3367 else if (sym_sec
== NULL
&& hh
!= NULL
3368 && hh
->eh
.root
.type
== bfd_link_hash_undefweak
)
3370 /* It's OK if undefined weak. Calls to undefined weak
3371 symbols behave as if the "called" function
3372 immediately returns. We can thus call to a weak
3373 function without first checking whether the function
3379 return bfd_reloc_undefined
;
3383 case R_PARISC_PCREL21L
:
3384 case R_PARISC_PCREL17C
:
3385 case R_PARISC_PCREL17R
:
3386 case R_PARISC_PCREL14R
:
3387 case R_PARISC_PCREL14F
:
3388 case R_PARISC_PCREL32
:
3389 /* Make it a pc relative offset. */
3394 case R_PARISC_DPREL21L
:
3395 case R_PARISC_DPREL14R
:
3396 case R_PARISC_DPREL14F
:
3397 /* Convert instructions that use the linkage table pointer (r19) to
3398 instructions that use the global data pointer (dp). This is the
3399 most efficient way of using PIC code in an incomplete executable,
3400 but the user must follow the standard runtime conventions for
3401 accessing data for this to work. */
3402 if (orig_r_type
== R_PARISC_DLTIND21L
)
3404 /* Convert addil instructions if the original reloc was a
3405 DLTIND21L. GCC sometimes uses a register other than r19 for
3406 the operation, so we must convert any addil instruction
3407 that uses this relocation. */
3408 if ((insn
& 0xfc000000) == ((int) OP_ADDIL
<< 26))
3411 /* We must have a ldil instruction. It's too hard to find
3412 and convert the associated add instruction, so issue an
3414 (*_bfd_error_handler
)
3415 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3422 else if (orig_r_type
== R_PARISC_DLTIND14F
)
3424 /* This must be a format 1 load/store. Change the base
3426 insn
= (insn
& 0xfc1ffff) | (27 << 21);
3429 /* For all the DP relative relocations, we need to examine the symbol's
3430 section. If it has no section or if it's a code section, then
3431 "data pointer relative" makes no sense. In that case we don't
3432 adjust the "value", and for 21 bit addil instructions, we change the
3433 source addend register from %dp to %r0. This situation commonly
3434 arises for undefined weak symbols and when a variable's "constness"
3435 is declared differently from the way the variable is defined. For
3436 instance: "extern int foo" with foo defined as "const int foo". */
3437 if (sym_sec
== NULL
|| (sym_sec
->flags
& SEC_CODE
) != 0)
3439 if ((insn
& ((0x3f << 26) | (0x1f << 21)))
3440 == (((int) OP_ADDIL
<< 26) | (27 << 21)))
3442 insn
&= ~ (0x1f << 21);
3444 /* Now try to make things easy for the dynamic linker. */
3450 case R_PARISC_DLTIND21L
:
3451 case R_PARISC_DLTIND14R
:
3452 case R_PARISC_DLTIND14F
:
3453 case R_PARISC_TLS_GD21L
:
3454 case R_PARISC_TLS_GD14R
:
3455 case R_PARISC_TLS_LDM21L
:
3456 case R_PARISC_TLS_LDM14R
:
3457 case R_PARISC_TLS_IE21L
:
3458 case R_PARISC_TLS_IE14R
:
3459 value
-= elf_gp (input_section
->output_section
->owner
);
3462 case R_PARISC_SEGREL32
:
3463 if ((sym_sec
->flags
& SEC_CODE
) != 0)
3464 value
-= htab
->text_segment_base
;
3466 value
-= htab
->data_segment_base
;
3475 case R_PARISC_DIR32
:
3476 case R_PARISC_DIR14F
:
3477 case R_PARISC_DIR17F
:
3478 case R_PARISC_PCREL17C
:
3479 case R_PARISC_PCREL14F
:
3480 case R_PARISC_PCREL32
:
3481 case R_PARISC_DPREL14F
:
3482 case R_PARISC_PLABEL32
:
3483 case R_PARISC_DLTIND14F
:
3484 case R_PARISC_SEGBASE
:
3485 case R_PARISC_SEGREL32
:
3486 case R_PARISC_TLS_DTPMOD32
:
3487 case R_PARISC_TLS_DTPOFF32
:
3488 case R_PARISC_TLS_TPREL32
:
3492 case R_PARISC_DLTIND21L
:
3493 case R_PARISC_PCREL21L
:
3494 case R_PARISC_PLABEL21L
:
3498 case R_PARISC_DIR21L
:
3499 case R_PARISC_DPREL21L
:
3500 case R_PARISC_TLS_GD21L
:
3501 case R_PARISC_TLS_LDM21L
:
3502 case R_PARISC_TLS_LDO21L
:
3503 case R_PARISC_TLS_IE21L
:
3504 case R_PARISC_TLS_LE21L
:
3508 case R_PARISC_PCREL17R
:
3509 case R_PARISC_PCREL14R
:
3510 case R_PARISC_PLABEL14R
:
3511 case R_PARISC_DLTIND14R
:
3515 case R_PARISC_DIR17R
:
3516 case R_PARISC_DIR14R
:
3517 case R_PARISC_DPREL14R
:
3518 case R_PARISC_TLS_GD14R
:
3519 case R_PARISC_TLS_LDM14R
:
3520 case R_PARISC_TLS_LDO14R
:
3521 case R_PARISC_TLS_IE14R
:
3522 case R_PARISC_TLS_LE14R
:
3526 case R_PARISC_PCREL12F
:
3527 case R_PARISC_PCREL17F
:
3528 case R_PARISC_PCREL22F
:
3531 if (r_type
== (unsigned int) R_PARISC_PCREL17F
)
3533 max_branch_offset
= (1 << (17-1)) << 2;
3535 else if (r_type
== (unsigned int) R_PARISC_PCREL12F
)
3537 max_branch_offset
= (1 << (12-1)) << 2;
3541 max_branch_offset
= (1 << (22-1)) << 2;
3544 /* sym_sec is NULL on undefined weak syms or when shared on
3545 undefined syms. We've already checked for a stub for the
3546 shared undefined case. */
3547 if (sym_sec
== NULL
)
3550 /* If the branch is out of reach, then redirect the
3551 call to the local stub for this function. */
3552 if (value
+ addend
+ max_branch_offset
>= 2*max_branch_offset
)
3554 hsh
= hppa_get_stub_entry (input_section
, sym_sec
,
3557 return bfd_reloc_undefined
;
3559 /* Munge up the value and addend so that we call the stub
3560 rather than the procedure directly. */
3561 value
= (hsh
->stub_offset
3562 + hsh
->stub_sec
->output_offset
3563 + hsh
->stub_sec
->output_section
->vma
3569 /* Something we don't know how to handle. */
3571 return bfd_reloc_notsupported
;
3574 /* Make sure we can reach the stub. */
3575 if (max_branch_offset
!= 0
3576 && value
+ addend
+ max_branch_offset
>= 2*max_branch_offset
)
3578 (*_bfd_error_handler
)
3579 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3583 hsh
->bh_root
.string
);
3584 bfd_set_error (bfd_error_bad_value
);
3585 return bfd_reloc_notsupported
;
3588 val
= hppa_field_adjust (value
, addend
, r_field
);
3592 case R_PARISC_PCREL12F
:
3593 case R_PARISC_PCREL17C
:
3594 case R_PARISC_PCREL17F
:
3595 case R_PARISC_PCREL17R
:
3596 case R_PARISC_PCREL22F
:
3597 case R_PARISC_DIR17F
:
3598 case R_PARISC_DIR17R
:
3599 /* This is a branch. Divide the offset by four.
3600 Note that we need to decide whether it's a branch or
3601 otherwise by inspecting the reloc. Inspecting insn won't
3602 work as insn might be from a .word directive. */
3610 insn
= hppa_rebuild_insn (insn
, val
, r_format
);
3612 /* Update the instruction word. */
3613 bfd_put_32 (input_bfd
, (bfd_vma
) insn
, hit_data
);
3614 return bfd_reloc_ok
;
3617 /* Relocate an HPPA ELF section. */
3620 elf32_hppa_relocate_section (bfd
*output_bfd
,
3621 struct bfd_link_info
*info
,
3623 asection
*input_section
,
3625 Elf_Internal_Rela
*relocs
,
3626 Elf_Internal_Sym
*local_syms
,
3627 asection
**local_sections
)
3629 bfd_vma
*local_got_offsets
;
3630 struct elf32_hppa_link_hash_table
*htab
;
3631 Elf_Internal_Shdr
*symtab_hdr
;
3632 Elf_Internal_Rela
*rela
;
3633 Elf_Internal_Rela
*relend
;
3635 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3637 htab
= hppa_link_hash_table (info
);
3638 local_got_offsets
= elf_local_got_offsets (input_bfd
);
3641 relend
= relocs
+ input_section
->reloc_count
;
3642 for (; rela
< relend
; rela
++)
3644 unsigned int r_type
;
3645 reloc_howto_type
*howto
;
3646 unsigned int r_symndx
;
3647 struct elf32_hppa_link_hash_entry
*hh
;
3648 Elf_Internal_Sym
*sym
;
3651 bfd_reloc_status_type rstatus
;
3652 const char *sym_name
;
3654 bfd_boolean warned_undef
;
3656 r_type
= ELF32_R_TYPE (rela
->r_info
);
3657 if (r_type
>= (unsigned int) R_PARISC_UNIMPLEMENTED
)
3659 bfd_set_error (bfd_error_bad_value
);
3662 if (r_type
== (unsigned int) R_PARISC_GNU_VTENTRY
3663 || r_type
== (unsigned int) R_PARISC_GNU_VTINHERIT
)
3666 r_symndx
= ELF32_R_SYM (rela
->r_info
);
3670 warned_undef
= FALSE
;
3671 if (r_symndx
< symtab_hdr
->sh_info
)
3673 /* This is a local symbol, h defaults to NULL. */
3674 sym
= local_syms
+ r_symndx
;
3675 sym_sec
= local_sections
[r_symndx
];
3676 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sym_sec
, rela
);
3680 struct elf_link_hash_entry
*eh
;
3681 bfd_boolean unresolved_reloc
;
3682 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
3684 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rela
,
3685 r_symndx
, symtab_hdr
, sym_hashes
,
3686 eh
, sym_sec
, relocation
,
3687 unresolved_reloc
, warned_undef
);
3689 if (!info
->relocatable
3691 && eh
->root
.type
!= bfd_link_hash_defined
3692 && eh
->root
.type
!= bfd_link_hash_defweak
3693 && eh
->root
.type
!= bfd_link_hash_undefweak
)
3695 if (info
->unresolved_syms_in_objects
== RM_IGNORE
3696 && ELF_ST_VISIBILITY (eh
->other
) == STV_DEFAULT
3697 && eh
->type
== STT_PARISC_MILLI
)
3699 if (! info
->callbacks
->undefined_symbol
3700 (info
, eh_name (eh
), input_bfd
,
3701 input_section
, rela
->r_offset
, FALSE
))
3703 warned_undef
= TRUE
;
3706 hh
= hppa_elf_hash_entry (eh
);
3709 if (sym_sec
!= NULL
&& elf_discarded_section (sym_sec
))
3711 /* For relocs against symbols from removed linkonce
3712 sections, or sections discarded by a linker script,
3713 we just want the section contents zeroed. Avoid any
3714 special processing. */
3715 _bfd_clear_contents (elf_hppa_howto_table
+ r_type
, input_bfd
,
3716 contents
+ rela
->r_offset
);
3722 if (info
->relocatable
)
3725 /* Do any required modifications to the relocation value, and
3726 determine what types of dynamic info we need to output, if
3731 case R_PARISC_DLTIND14F
:
3732 case R_PARISC_DLTIND14R
:
3733 case R_PARISC_DLTIND21L
:
3736 bfd_boolean do_got
= 0;
3738 /* Relocation is to the entry for this symbol in the
3739 global offset table. */
3744 off
= hh
->eh
.got
.offset
;
3745 dyn
= htab
->etab
.dynamic_sections_created
;
3746 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
,
3749 /* If we aren't going to call finish_dynamic_symbol,
3750 then we need to handle initialisation of the .got
3751 entry and create needed relocs here. Since the
3752 offset must always be a multiple of 4, we use the
3753 least significant bit to record whether we have
3754 initialised it already. */
3759 hh
->eh
.got
.offset
|= 1;
3766 /* Local symbol case. */
3767 if (local_got_offsets
== NULL
)
3770 off
= local_got_offsets
[r_symndx
];
3772 /* The offset must always be a multiple of 4. We use
3773 the least significant bit to record whether we have
3774 already generated the necessary reloc. */
3779 local_got_offsets
[r_symndx
] |= 1;
3788 /* Output a dynamic relocation for this GOT entry.
3789 In this case it is relative to the base of the
3790 object because the symbol index is zero. */
3791 Elf_Internal_Rela outrel
;
3793 asection
*sec
= htab
->srelgot
;
3795 outrel
.r_offset
= (off
3796 + htab
->sgot
->output_offset
3797 + htab
->sgot
->output_section
->vma
);
3798 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_DIR32
);
3799 outrel
.r_addend
= relocation
;
3800 loc
= sec
->contents
;
3801 loc
+= sec
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3802 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3805 bfd_put_32 (output_bfd
, relocation
,
3806 htab
->sgot
->contents
+ off
);
3809 if (off
>= (bfd_vma
) -2)
3812 /* Add the base of the GOT to the relocation value. */
3814 + htab
->sgot
->output_offset
3815 + htab
->sgot
->output_section
->vma
);
3819 case R_PARISC_SEGREL32
:
3820 /* If this is the first SEGREL relocation, then initialize
3821 the segment base values. */
3822 if (htab
->text_segment_base
== (bfd_vma
) -1)
3823 bfd_map_over_sections (output_bfd
, hppa_record_segment_addr
, htab
);
3826 case R_PARISC_PLABEL14R
:
3827 case R_PARISC_PLABEL21L
:
3828 case R_PARISC_PLABEL32
:
3829 if (htab
->etab
.dynamic_sections_created
)
3832 bfd_boolean do_plt
= 0;
3833 /* If we have a global symbol with a PLT slot, then
3834 redirect this relocation to it. */
3837 off
= hh
->eh
.plt
.offset
;
3838 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info
->shared
,
3841 /* In a non-shared link, adjust_dynamic_symbols
3842 isn't called for symbols forced local. We
3843 need to write out the plt entry here. */
3848 hh
->eh
.plt
.offset
|= 1;
3855 bfd_vma
*local_plt_offsets
;
3857 if (local_got_offsets
== NULL
)
3860 local_plt_offsets
= local_got_offsets
+ symtab_hdr
->sh_info
;
3861 off
= local_plt_offsets
[r_symndx
];
3863 /* As for the local .got entry case, we use the last
3864 bit to record whether we've already initialised
3865 this local .plt entry. */
3870 local_plt_offsets
[r_symndx
] |= 1;
3879 /* Output a dynamic IPLT relocation for this
3881 Elf_Internal_Rela outrel
;
3883 asection
*s
= htab
->srelplt
;
3885 outrel
.r_offset
= (off
3886 + htab
->splt
->output_offset
3887 + htab
->splt
->output_section
->vma
);
3888 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_IPLT
);
3889 outrel
.r_addend
= relocation
;
3891 loc
+= s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3892 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3896 bfd_put_32 (output_bfd
,
3898 htab
->splt
->contents
+ off
);
3899 bfd_put_32 (output_bfd
,
3900 elf_gp (htab
->splt
->output_section
->owner
),
3901 htab
->splt
->contents
+ off
+ 4);
3905 if (off
>= (bfd_vma
) -2)
3908 /* PLABELs contain function pointers. Relocation is to
3909 the entry for the function in the .plt. The magic +2
3910 offset signals to $$dyncall that the function pointer
3911 is in the .plt and thus has a gp pointer too.
3912 Exception: Undefined PLABELs should have a value of
3915 || (hh
->eh
.root
.type
!= bfd_link_hash_undefweak
3916 && hh
->eh
.root
.type
!= bfd_link_hash_undefined
))
3919 + htab
->splt
->output_offset
3920 + htab
->splt
->output_section
->vma
3925 /* Fall through and possibly emit a dynamic relocation. */
3927 case R_PARISC_DIR17F
:
3928 case R_PARISC_DIR17R
:
3929 case R_PARISC_DIR14F
:
3930 case R_PARISC_DIR14R
:
3931 case R_PARISC_DIR21L
:
3932 case R_PARISC_DPREL14F
:
3933 case R_PARISC_DPREL14R
:
3934 case R_PARISC_DPREL21L
:
3935 case R_PARISC_DIR32
:
3936 if ((input_section
->flags
& SEC_ALLOC
) == 0)
3939 /* The reloc types handled here and this conditional
3940 expression must match the code in ..check_relocs and
3941 allocate_dynrelocs. ie. We need exactly the same condition
3942 as in ..check_relocs, with some extra conditions (dynindx
3943 test in this case) to cater for relocs removed by
3944 allocate_dynrelocs. If you squint, the non-shared test
3945 here does indeed match the one in ..check_relocs, the
3946 difference being that here we test DEF_DYNAMIC as well as
3947 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3948 which is why we can't use just that test here.
3949 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3950 there all files have not been loaded. */
3953 || ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
3954 || hh
->eh
.root
.type
!= bfd_link_hash_undefweak
)
3955 && (IS_ABSOLUTE_RELOC (r_type
)
3956 || !SYMBOL_CALLS_LOCAL (info
, &hh
->eh
)))
3959 && hh
->eh
.dynindx
!= -1
3960 && !hh
->eh
.non_got_ref
3961 && ((ELIMINATE_COPY_RELOCS
3962 && hh
->eh
.def_dynamic
3963 && !hh
->eh
.def_regular
)
3964 || hh
->eh
.root
.type
== bfd_link_hash_undefweak
3965 || hh
->eh
.root
.type
== bfd_link_hash_undefined
)))
3967 Elf_Internal_Rela outrel
;
3972 /* When generating a shared object, these relocations
3973 are copied into the output file to be resolved at run
3976 outrel
.r_addend
= rela
->r_addend
;
3978 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
3980 skip
= (outrel
.r_offset
== (bfd_vma
) -1
3981 || outrel
.r_offset
== (bfd_vma
) -2);
3982 outrel
.r_offset
+= (input_section
->output_offset
3983 + input_section
->output_section
->vma
);
3987 memset (&outrel
, 0, sizeof (outrel
));
3990 && hh
->eh
.dynindx
!= -1
3992 || !IS_ABSOLUTE_RELOC (r_type
)
3995 || !hh
->eh
.def_regular
))
3997 outrel
.r_info
= ELF32_R_INFO (hh
->eh
.dynindx
, r_type
);
3999 else /* It's a local symbol, or one marked to become local. */
4003 /* Add the absolute offset of the symbol. */
4004 outrel
.r_addend
+= relocation
;
4006 /* Global plabels need to be processed by the
4007 dynamic linker so that functions have at most one
4008 fptr. For this reason, we need to differentiate
4009 between global and local plabels, which we do by
4010 providing the function symbol for a global plabel
4011 reloc, and no symbol for local plabels. */
4014 && sym_sec
->output_section
!= NULL
4015 && ! bfd_is_abs_section (sym_sec
))
4019 osec
= sym_sec
->output_section
;
4020 indx
= elf_section_data (osec
)->dynindx
;
4023 osec
= htab
->etab
.text_index_section
;
4024 indx
= elf_section_data (osec
)->dynindx
;
4026 BFD_ASSERT (indx
!= 0);
4028 /* We are turning this relocation into one
4029 against a section symbol, so subtract out the
4030 output section's address but not the offset
4031 of the input section in the output section. */
4032 outrel
.r_addend
-= osec
->vma
;
4035 outrel
.r_info
= ELF32_R_INFO (indx
, r_type
);
4037 sreloc
= elf_section_data (input_section
)->sreloc
;
4041 loc
= sreloc
->contents
;
4042 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4043 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4047 case R_PARISC_TLS_LDM21L
:
4048 case R_PARISC_TLS_LDM14R
:
4052 off
= htab
->tls_ldm_got
.offset
;
4057 Elf_Internal_Rela outrel
;
4060 outrel
.r_offset
= (off
4061 + htab
->sgot
->output_section
->vma
4062 + htab
->sgot
->output_offset
);
4063 outrel
.r_addend
= 0;
4064 outrel
.r_info
= ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32
);
4065 loc
= htab
->srelgot
->contents
;
4066 loc
+= htab
->srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4068 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4069 htab
->tls_ldm_got
.offset
|= 1;
4072 /* Add the base of the GOT to the relocation value. */
4074 + htab
->sgot
->output_offset
4075 + htab
->sgot
->output_section
->vma
);
4080 case R_PARISC_TLS_LDO21L
:
4081 case R_PARISC_TLS_LDO14R
:
4082 relocation
-= dtpoff_base (info
);
4085 case R_PARISC_TLS_GD21L
:
4086 case R_PARISC_TLS_GD14R
:
4087 case R_PARISC_TLS_IE21L
:
4088 case R_PARISC_TLS_IE14R
:
4098 dyn
= htab
->etab
.dynamic_sections_created
;
4100 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, &hh
->eh
)
4102 || !SYMBOL_REFERENCES_LOCAL (info
, &hh
->eh
)))
4104 indx
= hh
->eh
.dynindx
;
4106 off
= hh
->eh
.got
.offset
;
4107 tls_type
= hh
->tls_type
;
4111 off
= local_got_offsets
[r_symndx
];
4112 tls_type
= hppa_elf_local_got_tls_type (input_bfd
)[r_symndx
];
4115 if (tls_type
== GOT_UNKNOWN
)
4122 bfd_boolean need_relocs
= FALSE
;
4123 Elf_Internal_Rela outrel
;
4124 bfd_byte
*loc
= NULL
;
4127 /* The GOT entries have not been initialized yet. Do it
4128 now, and emit any relocations. If both an IE GOT and a
4129 GD GOT are necessary, we emit the GD first. */
4131 if ((info
->shared
|| indx
!= 0)
4133 || ELF_ST_VISIBILITY (hh
->eh
.other
) == STV_DEFAULT
4134 || hh
->eh
.root
.type
!= bfd_link_hash_undefweak
))
4137 loc
= htab
->srelgot
->contents
;
4138 /* FIXME (CAO): Should this be reloc_count++ ? */
4139 loc
+= htab
->srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
4142 if (tls_type
& GOT_TLS_GD
)
4146 outrel
.r_offset
= (cur_off
4147 + htab
->sgot
->output_section
->vma
4148 + htab
->sgot
->output_offset
);
4149 outrel
.r_info
= ELF32_R_INFO (indx
,R_PARISC_TLS_DTPMOD32
);
4150 outrel
.r_addend
= 0;
4151 bfd_put_32 (output_bfd
, 0, htab
->sgot
->contents
+ cur_off
);
4152 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4153 htab
->srelgot
->reloc_count
++;
4154 loc
+= sizeof (Elf32_External_Rela
);
4157 bfd_put_32 (output_bfd
, relocation
- dtpoff_base (info
),
4158 htab
->sgot
->contents
+ cur_off
+ 4);
4161 bfd_put_32 (output_bfd
, 0,
4162 htab
->sgot
->contents
+ cur_off
+ 4);
4163 outrel
.r_info
= ELF32_R_INFO (indx
, R_PARISC_TLS_DTPOFF32
);
4164 outrel
.r_offset
+= 4;
4165 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,loc
);
4166 htab
->srelgot
->reloc_count
++;
4167 loc
+= sizeof (Elf32_External_Rela
);
4172 /* If we are not emitting relocations for a
4173 general dynamic reference, then we must be in a
4174 static link or an executable link with the
4175 symbol binding locally. Mark it as belonging
4176 to module 1, the executable. */
4177 bfd_put_32 (output_bfd
, 1,
4178 htab
->sgot
->contents
+ cur_off
);
4179 bfd_put_32 (output_bfd
, relocation
- dtpoff_base (info
),
4180 htab
->sgot
->contents
+ cur_off
+ 4);
4187 if (tls_type
& GOT_TLS_IE
)
4191 outrel
.r_offset
= (cur_off
4192 + htab
->sgot
->output_section
->vma
4193 + htab
->sgot
->output_offset
);
4194 outrel
.r_info
= ELF32_R_INFO (indx
, R_PARISC_TLS_TPREL32
);
4197 outrel
.r_addend
= relocation
- dtpoff_base (info
);
4199 outrel
.r_addend
= 0;
4201 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4202 htab
->srelgot
->reloc_count
++;
4203 loc
+= sizeof (Elf32_External_Rela
);
4206 bfd_put_32 (output_bfd
, tpoff (info
, relocation
),
4207 htab
->sgot
->contents
+ cur_off
);
4213 hh
->eh
.got
.offset
|= 1;
4215 local_got_offsets
[r_symndx
] |= 1;
4218 if ((tls_type
& GOT_TLS_GD
)
4219 && r_type
!= R_PARISC_TLS_GD21L
4220 && r_type
!= R_PARISC_TLS_GD14R
)
4221 off
+= 2 * GOT_ENTRY_SIZE
;
4223 /* Add the base of the GOT to the relocation value. */
4225 + htab
->sgot
->output_offset
4226 + htab
->sgot
->output_section
->vma
);
4231 case R_PARISC_TLS_LE21L
:
4232 case R_PARISC_TLS_LE14R
:
4234 relocation
= tpoff (info
, relocation
);
4243 rstatus
= final_link_relocate (input_section
, contents
, rela
, relocation
,
4244 htab
, sym_sec
, hh
, info
);
4246 if (rstatus
== bfd_reloc_ok
)
4250 sym_name
= hh_name (hh
);
4253 sym_name
= bfd_elf_string_from_elf_section (input_bfd
,
4254 symtab_hdr
->sh_link
,
4256 if (sym_name
== NULL
)
4258 if (*sym_name
== '\0')
4259 sym_name
= bfd_section_name (input_bfd
, sym_sec
);
4262 howto
= elf_hppa_howto_table
+ r_type
;
4264 if (rstatus
== bfd_reloc_undefined
|| rstatus
== bfd_reloc_notsupported
)
4266 if (rstatus
== bfd_reloc_notsupported
|| !warned_undef
)
4268 (*_bfd_error_handler
)
4269 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4272 (long) rela
->r_offset
,
4275 bfd_set_error (bfd_error_bad_value
);
4281 if (!((*info
->callbacks
->reloc_overflow
)
4282 (info
, (hh
? &hh
->eh
.root
: NULL
), sym_name
, howto
->name
,
4283 (bfd_vma
) 0, input_bfd
, input_section
, rela
->r_offset
)))
4291 /* Finish up dynamic symbol handling. We set the contents of various
4292 dynamic sections here. */
4295 elf32_hppa_finish_dynamic_symbol (bfd
*output_bfd
,
4296 struct bfd_link_info
*info
,
4297 struct elf_link_hash_entry
*eh
,
4298 Elf_Internal_Sym
*sym
)
4300 struct elf32_hppa_link_hash_table
*htab
;
4301 Elf_Internal_Rela rela
;
4304 htab
= hppa_link_hash_table (info
);
4306 if (eh
->plt
.offset
!= (bfd_vma
) -1)
4310 if (eh
->plt
.offset
& 1)
4313 /* This symbol has an entry in the procedure linkage table. Set
4316 The format of a plt entry is
4321 if (eh
->root
.type
== bfd_link_hash_defined
4322 || eh
->root
.type
== bfd_link_hash_defweak
)
4324 value
= eh
->root
.u
.def
.value
;
4325 if (eh
->root
.u
.def
.section
->output_section
!= NULL
)
4326 value
+= (eh
->root
.u
.def
.section
->output_offset
4327 + eh
->root
.u
.def
.section
->output_section
->vma
);
4330 /* Create a dynamic IPLT relocation for this entry. */
4331 rela
.r_offset
= (eh
->plt
.offset
4332 + htab
->splt
->output_offset
4333 + htab
->splt
->output_section
->vma
);
4334 if (eh
->dynindx
!= -1)
4336 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_IPLT
);
4341 /* This symbol has been marked to become local, and is
4342 used by a plabel so must be kept in the .plt. */
4343 rela
.r_info
= ELF32_R_INFO (0, R_PARISC_IPLT
);
4344 rela
.r_addend
= value
;
4347 loc
= htab
->srelplt
->contents
;
4348 loc
+= htab
->srelplt
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4349 bfd_elf32_swap_reloca_out (htab
->splt
->output_section
->owner
, &rela
, loc
);
4351 if (!eh
->def_regular
)
4353 /* Mark the symbol as undefined, rather than as defined in
4354 the .plt section. Leave the value alone. */
4355 sym
->st_shndx
= SHN_UNDEF
;
4359 if (eh
->got
.offset
!= (bfd_vma
) -1
4360 && (hppa_elf_hash_entry (eh
)->tls_type
& GOT_TLS_GD
) == 0
4361 && (hppa_elf_hash_entry (eh
)->tls_type
& GOT_TLS_IE
) == 0)
4363 /* This symbol has an entry in the global offset table. Set it
4366 rela
.r_offset
= ((eh
->got
.offset
&~ (bfd_vma
) 1)
4367 + htab
->sgot
->output_offset
4368 + htab
->sgot
->output_section
->vma
);
4370 /* If this is a -Bsymbolic link and the symbol is defined
4371 locally or was forced to be local because of a version file,
4372 we just want to emit a RELATIVE reloc. The entry in the
4373 global offset table will already have been initialized in the
4374 relocate_section function. */
4376 && (info
->symbolic
|| eh
->dynindx
== -1)
4379 rela
.r_info
= ELF32_R_INFO (0, R_PARISC_DIR32
);
4380 rela
.r_addend
= (eh
->root
.u
.def
.value
4381 + eh
->root
.u
.def
.section
->output_offset
4382 + eh
->root
.u
.def
.section
->output_section
->vma
);
4386 if ((eh
->got
.offset
& 1) != 0)
4389 bfd_put_32 (output_bfd
, 0, htab
->sgot
->contents
+ (eh
->got
.offset
& ~1));
4390 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_DIR32
);
4394 loc
= htab
->srelgot
->contents
;
4395 loc
+= htab
->srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4396 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4403 /* This symbol needs a copy reloc. Set it up. */
4405 if (! (eh
->dynindx
!= -1
4406 && (eh
->root
.type
== bfd_link_hash_defined
4407 || eh
->root
.type
== bfd_link_hash_defweak
)))
4410 sec
= htab
->srelbss
;
4412 rela
.r_offset
= (eh
->root
.u
.def
.value
4413 + eh
->root
.u
.def
.section
->output_offset
4414 + eh
->root
.u
.def
.section
->output_section
->vma
);
4416 rela
.r_info
= ELF32_R_INFO (eh
->dynindx
, R_PARISC_COPY
);
4417 loc
= sec
->contents
+ sec
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4418 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4421 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4422 if (eh_name (eh
)[0] == '_'
4423 && (strcmp (eh_name (eh
), "_DYNAMIC") == 0
4424 || eh
== htab
->etab
.hgot
))
4426 sym
->st_shndx
= SHN_ABS
;
4432 /* Used to decide how to sort relocs in an optimal manner for the
4433 dynamic linker, before writing them out. */
4435 static enum elf_reloc_type_class
4436 elf32_hppa_reloc_type_class (const Elf_Internal_Rela
*rela
)
4438 /* Handle TLS relocs first; we don't want them to be marked
4439 relative by the "if (ELF32_R_SYM (rela->r_info) == 0)"
4441 switch ((int) ELF32_R_TYPE (rela
->r_info
))
4443 case R_PARISC_TLS_DTPMOD32
:
4444 case R_PARISC_TLS_DTPOFF32
:
4445 case R_PARISC_TLS_TPREL32
:
4446 return reloc_class_normal
;
4449 if (ELF32_R_SYM (rela
->r_info
) == 0)
4450 return reloc_class_relative
;
4452 switch ((int) ELF32_R_TYPE (rela
->r_info
))
4455 return reloc_class_plt
;
4457 return reloc_class_copy
;
4459 return reloc_class_normal
;
4463 /* Finish up the dynamic sections. */
4466 elf32_hppa_finish_dynamic_sections (bfd
*output_bfd
,
4467 struct bfd_link_info
*info
)
4470 struct elf32_hppa_link_hash_table
*htab
;
4473 htab
= hppa_link_hash_table (info
);
4474 dynobj
= htab
->etab
.dynobj
;
4476 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
4478 if (htab
->etab
.dynamic_sections_created
)
4480 Elf32_External_Dyn
*dyncon
, *dynconend
;
4485 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
4486 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
4487 for (; dyncon
< dynconend
; dyncon
++)
4489 Elf_Internal_Dyn dyn
;
4492 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4500 /* Use PLTGOT to set the GOT register. */
4501 dyn
.d_un
.d_ptr
= elf_gp (output_bfd
);
4506 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
4511 dyn
.d_un
.d_val
= s
->size
;
4515 /* Don't count procedure linkage table relocs in the
4516 overall reloc count. */
4520 dyn
.d_un
.d_val
-= s
->size
;
4524 /* We may not be using the standard ELF linker script.
4525 If .rela.plt is the first .rela section, we adjust
4526 DT_RELA to not include it. */
4530 if (dyn
.d_un
.d_ptr
!= s
->output_section
->vma
+ s
->output_offset
)
4532 dyn
.d_un
.d_ptr
+= s
->size
;
4536 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
4540 if (htab
->sgot
!= NULL
&& htab
->sgot
->size
!= 0)
4542 /* Fill in the first entry in the global offset table.
4543 We use it to point to our dynamic section, if we have one. */
4544 bfd_put_32 (output_bfd
,
4545 sdyn
? sdyn
->output_section
->vma
+ sdyn
->output_offset
: 0,
4546 htab
->sgot
->contents
);
4548 /* The second entry is reserved for use by the dynamic linker. */
4549 memset (htab
->sgot
->contents
+ GOT_ENTRY_SIZE
, 0, GOT_ENTRY_SIZE
);
4551 /* Set .got entry size. */
4552 elf_section_data (htab
->sgot
->output_section
)
4553 ->this_hdr
.sh_entsize
= GOT_ENTRY_SIZE
;
4556 if (htab
->splt
!= NULL
&& htab
->splt
->size
!= 0)
4558 /* Set plt entry size. */
4559 elf_section_data (htab
->splt
->output_section
)
4560 ->this_hdr
.sh_entsize
= PLT_ENTRY_SIZE
;
4562 if (htab
->need_plt_stub
)
4564 /* Set up the .plt stub. */
4565 memcpy (htab
->splt
->contents
4566 + htab
->splt
->size
- sizeof (plt_stub
),
4567 plt_stub
, sizeof (plt_stub
));
4569 if ((htab
->splt
->output_offset
4570 + htab
->splt
->output_section
->vma
4572 != (htab
->sgot
->output_offset
4573 + htab
->sgot
->output_section
->vma
))
4575 (*_bfd_error_handler
)
4576 (_(".got section not immediately after .plt section"));
4585 /* Called when writing out an object file to decide the type of a
4588 elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym
*elf_sym
, int type
)
4590 if (ELF_ST_TYPE (elf_sym
->st_info
) == STT_PARISC_MILLI
)
4591 return STT_PARISC_MILLI
;
4596 /* Misc BFD support code. */
4597 #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4598 #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4599 #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4600 #define elf_info_to_howto elf_hppa_info_to_howto
4601 #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4603 /* Stuff for the BFD linker. */
4604 #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4605 #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4606 #define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free
4607 #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4608 #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4609 #define elf_backend_check_relocs elf32_hppa_check_relocs
4610 #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4611 #define elf_backend_fake_sections elf_hppa_fake_sections
4612 #define elf_backend_relocate_section elf32_hppa_relocate_section
4613 #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4614 #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4615 #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4616 #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4617 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4618 #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4619 #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
4620 #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4621 #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4622 #define elf_backend_object_p elf32_hppa_object_p
4623 #define elf_backend_final_write_processing elf_hppa_final_write_processing
4624 #define elf_backend_post_process_headers _bfd_elf_set_osabi
4625 #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4626 #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4627 #define elf_backend_action_discarded elf_hppa_action_discarded
4629 #define elf_backend_can_gc_sections 1
4630 #define elf_backend_can_refcount 1
4631 #define elf_backend_plt_alignment 2
4632 #define elf_backend_want_got_plt 0
4633 #define elf_backend_plt_readonly 0
4634 #define elf_backend_want_plt_sym 0
4635 #define elf_backend_got_header_size 8
4636 #define elf_backend_rela_normal 1
4638 #define TARGET_BIG_SYM bfd_elf32_hppa_vec
4639 #define TARGET_BIG_NAME "elf32-hppa"
4640 #define ELF_ARCH bfd_arch_hppa
4641 #define ELF_MACHINE_CODE EM_PARISC
4642 #define ELF_MAXPAGESIZE 0x1000
4643 #define ELF_OSABI ELFOSABI_HPUX
4644 #define elf32_bed elf32_hppa_hpux_bed
4646 #include "elf32-target.h"
4648 #undef TARGET_BIG_SYM
4649 #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec
4650 #undef TARGET_BIG_NAME
4651 #define TARGET_BIG_NAME "elf32-hppa-linux"
4653 #define ELF_OSABI ELFOSABI_LINUX
4655 #define elf32_bed elf32_hppa_linux_bed
4657 #include "elf32-target.h"
4659 #undef TARGET_BIG_SYM
4660 #define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec
4661 #undef TARGET_BIG_NAME
4662 #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4664 #define ELF_OSABI ELFOSABI_NETBSD
4666 #define elf32_bed elf32_hppa_netbsd_bed
4668 #include "elf32-target.h"