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Remove usage of find_inferior in linux_stabilize_threads
[deliverable/binutils-gdb.git] / bfd / elfxx-sparc.c
CommitLineData
22b75d0a 1/* SPARC-specific support for ELF
2571583a 2 Copyright (C) 2005-2017 Free Software Foundation, Inc.
22b75d0a
DM		 3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
cd123cb7 8 the Free Software Foundation; either version 3 of the License, or
22b75d0a
DM		 9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
cd123cb7
NC		 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
22b75d0a
DM		 21
22/* This file handles functionality common to the different SPARC ABI's. */
23
22b75d0a 24#include "sysdep.h"
3db64b00 25#include "bfd.h"
22b75d0a
DM		 26#include "bfdlink.h"
27#include "libbfd.h"
910600e9 28#include "libiberty.h"
22b75d0a
DM		 29#include "elf-bfd.h"
30#include "elf/sparc.h"
31#include "opcode/sparc.h"
32#include "elfxx-sparc.h"
910600e9 33#include "elf-vxworks.h"
d0c9aeb3
DM		 34#include "objalloc.h"
35#include "hashtab.h"
22b75d0a
DM		 36
37/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
38#define MINUS_ONE (~ (bfd_vma) 0)
39
40#define ABI_64_P(abfd) \
41 (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
42
43/* The relocation "howto" table. */
44
45/* Utility for performing the standard initial work of an instruction
46 relocation.
47 *PRELOCATION will contain the relocated item.
48 *PINSN will contain the instruction from the input stream.
49 If the result is `bfd_reloc_other' the caller can continue with
50 performing the relocation. Otherwise it must stop and return the
51 value to its caller. */
52
53static bfd_reloc_status_type
54init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 55 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 56 bfd_vma *prelocation, bfd_vma *pinsn)
57{
58 bfd_vma relocation;
59 reloc_howto_type *howto = reloc_entry->howto;
60
61 if (output_bfd != (bfd *) NULL
62 && (symbol->flags & BSF_SECTION_SYM) == 0
63 && (! howto->partial_inplace
64 || reloc_entry->addend == 0))
65 {
66 reloc_entry->address += input_section->output_offset;
67 return bfd_reloc_ok;
68 }
69
70 /* This works because partial_inplace is FALSE. */
71 if (output_bfd != NULL)
72 return bfd_reloc_continue;
73
74 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
75 return bfd_reloc_outofrange;
76
77 relocation = (symbol->value
78 + symbol->section->output_section->vma
79 + symbol->section->output_offset);
80 relocation += reloc_entry->addend;
81 if (howto->pc_relative)
82 {
83 relocation -= (input_section->output_section->vma
84 + input_section->output_offset);
85 relocation -= reloc_entry->address;
86 }
87
88 *prelocation = relocation;
89 *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
90 return bfd_reloc_other;
91}
92
93/* For unsupported relocs. */
94
95static bfd_reloc_status_type
96sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
97 arelent *reloc_entry ATTRIBUTE_UNUSED,
98 asymbol *symbol ATTRIBUTE_UNUSED,
2c3fc389 99 void * data ATTRIBUTE_UNUSED,
22b75d0a
DM		 100 asection *input_section ATTRIBUTE_UNUSED,
101 bfd *output_bfd ATTRIBUTE_UNUSED,
102 char **error_message ATTRIBUTE_UNUSED)
103{
104 return bfd_reloc_notsupported;
105}
106
107/* Handle the WDISP16 reloc. */
108
109static bfd_reloc_status_type
110sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 111 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 112 char **error_message ATTRIBUTE_UNUSED)
113{
114 bfd_vma relocation;
115 bfd_vma insn;
116 bfd_reloc_status_type status;
117
118 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
119 input_section, output_bfd, &relocation, &insn);
120 if (status != bfd_reloc_other)
121 return status;
122
123 insn &= ~ (bfd_vma) 0x303fff;
124 insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
125 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
126
127 if ((bfd_signed_vma) relocation < - 0x40000
128 || (bfd_signed_vma) relocation > 0x3ffff)
129 return bfd_reloc_overflow;
130 else
131 return bfd_reloc_ok;
132}
133
2615994e
DM		 134/* Handle the WDISP10 reloc. */
135
136static bfd_reloc_status_type
137sparc_elf_wdisp10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 138 void * data, asection *input_section, bfd *output_bfd,
2615994e
DM		 139 char **error_message ATTRIBUTE_UNUSED)
140{
141 bfd_vma relocation;
142 bfd_vma insn;
143 bfd_reloc_status_type status;
144
145 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
146 input_section, output_bfd, &relocation, &insn);
147 if (status != bfd_reloc_other)
148 return status;
149
150 insn &= ~ (bfd_vma) 0x181fe0;
151 insn |= (((relocation >> 2) & 0x300) << 11)
152 | (((relocation >> 2) & 0xff) << 5);
153 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
154
155 if ((bfd_signed_vma) relocation < - 0x1000
156 || (bfd_signed_vma) relocation > 0xfff)
157 return bfd_reloc_overflow;
158 else
159 return bfd_reloc_ok;
160}
161
22b75d0a
DM		 162/* Handle the HIX22 reloc. */
163
164static bfd_reloc_status_type
165sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 166 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 167 char **error_message ATTRIBUTE_UNUSED)
168{
169 bfd_vma relocation;
170 bfd_vma insn;
171 bfd_reloc_status_type status;
172
173 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
174 input_section, output_bfd, &relocation, &insn);
175 if (status != bfd_reloc_other)
176 return status;
177
178 relocation ^= MINUS_ONE;
179 insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
180 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
181
182 if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
183 return bfd_reloc_overflow;
184 else
185 return bfd_reloc_ok;
186}
187
188/* Handle the LOX10 reloc. */
189
190static bfd_reloc_status_type
191sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 192 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 193 char **error_message ATTRIBUTE_UNUSED)
194{
195 bfd_vma relocation;
196 bfd_vma insn;
197 bfd_reloc_status_type status;
198
199 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
200 input_section, output_bfd, &relocation, &insn);
201 if (status != bfd_reloc_other)
202 return status;
203
204 insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
205 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
206
207 return bfd_reloc_ok;
208}
209
210static reloc_howto_type _bfd_sparc_elf_howto_table[] =
211{
6346d5ca 212 HOWTO(R_SPARC_NONE, 0,3, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
22b75d0a
DM		 213 HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
214 HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
215 HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
216 HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
217 HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
218 HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
219 HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
220 HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
221 HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
222 HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
223 HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
224 HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
225 HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
226 HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
227 HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
228 HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
229 HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
230 HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
231 HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
232 HOWTO(R_SPARC_GLOB_DAT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",FALSE,0,0x00000000,TRUE),
233 HOWTO(R_SPARC_JMP_SLOT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",FALSE,0,0x00000000,TRUE),
234 HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
235 HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
236 HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
237 HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
238 HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
239 HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
240 HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
241 HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
242 HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
243 HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
244 HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE),
245 HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE),
246 HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE),
247 HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE),
248 HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE),
249 HOWTO(R_SPARC_PC_HH22, 42,2,22,TRUE, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", FALSE,0,0x003fffff,TRUE),
250 HOWTO(R_SPARC_PC_HM10, 32,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", FALSE,0,0x000003ff,TRUE),
251 HOWTO(R_SPARC_PC_LM22, 10,2,22,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", FALSE,0,0x003fffff,TRUE),
252 HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
253 HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
254 HOWTO(R_SPARC_UNUSED_42, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",FALSE,0,0x00000000,TRUE),
255 HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
256 HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
257 HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
258 HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE),
259 HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE),
260 HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE),
261 HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE),
262 HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE),
263 HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE),
264 HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE),
265 HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE),
266 HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE),
267 HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
268 HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE),
269 HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE),
270 HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",FALSE,0,0x00000000,TRUE),
271 HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE),
272 HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE),
273 HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE),
274 HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",FALSE,0,0x00000000,TRUE),
275 HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE),
276 HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE),
277 HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE),
278 HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",FALSE,0,0x00000000,TRUE),
279 HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE),
280 HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE),
281 HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",FALSE,0,0x00000000,TRUE),
282 HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",FALSE,0,0x00000000,TRUE),
283 HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",FALSE,0,0x00000000,TRUE),
284 HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE),
285 HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE),
286 HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",FALSE,0,0x00000000,TRUE),
287 HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",FALSE,0,0x00000000,TRUE),
288 HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE),
289 HOWTO(R_SPARC_TLS_DTPOFF64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",FALSE,0,MINUS_ONE,TRUE),
290 HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE),
739f7f82
DM		 291 HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE),
292 HOWTO(R_SPARC_GOTDATA_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",FALSE,0,0x003fffff, FALSE),
293 HOWTO(R_SPARC_GOTDATA_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",FALSE,0,0x000003ff, FALSE),
294 HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",FALSE,0,0x003fffff, FALSE),
295 HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",FALSE,0,0x000003ff, FALSE),
296 HOWTO(R_SPARC_GOTDATA_OP,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOTDATA_OP",FALSE,0,0x00000000,TRUE),
2615994e
DM		 297 HOWTO(R_SPARC_H34,12,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc,"R_SPARC_H34",FALSE,0,0x003fffff,FALSE),
298 HOWTO(R_SPARC_SIZE32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE32",FALSE,0,0xffffffff,TRUE),
299 HOWTO(R_SPARC_SIZE64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE64",FALSE,0,MINUS_ONE, TRUE),
300 HOWTO(R_SPARC_WDISP10,2,2,10,TRUE, 0,complain_overflow_signed,sparc_elf_wdisp10_reloc,"R_SPARC_WDISP10",FALSE,0,0x00000000,TRUE),
22b75d0a 301};
d0c9aeb3
DM		 302static reloc_howto_type sparc_jmp_irel_howto =
303 HOWTO(R_SPARC_JMP_IREL, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_IREL",FALSE,0,0x00000000,TRUE);
304static reloc_howto_type sparc_irelative_howto =
305 HOWTO(R_SPARC_IRELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_IRELATIVE",FALSE,0,0x00000000,TRUE);
22b75d0a
DM		 306static reloc_howto_type sparc_vtinherit_howto =
307 HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE);
308static reloc_howto_type sparc_vtentry_howto =
309 HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", FALSE,0,0, FALSE);
310static reloc_howto_type sparc_rev32_howto =
311 HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE);
312
22b75d0a
DM		 313reloc_howto_type *
314_bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
315 bfd_reloc_code_real_type code)
316{
679b7c76
DM		 317 /* We explicitly handle each relocation type in the switch
318 instead of using a lookup table for efficiency. */
22b75d0a
DM		 319 switch (code)
320 {
679b7c76
DM		 321 case BFD_RELOC_NONE:
322 return &_bfd_sparc_elf_howto_table[R_SPARC_NONE];
323
324 case BFD_RELOC_8:
325 return &_bfd_sparc_elf_howto_table[R_SPARC_8];
326
327 case BFD_RELOC_16:
328 return &_bfd_sparc_elf_howto_table[R_SPARC_16];
329
330 case BFD_RELOC_32:
331 return &_bfd_sparc_elf_howto_table[R_SPARC_32];
332
333 case BFD_RELOC_8_PCREL:
334 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP8];
335
336 case BFD_RELOC_16_PCREL:
337 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP16];
338
339 case BFD_RELOC_32_PCREL:
340 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP32];
341
342 case BFD_RELOC_32_PCREL_S2:
343 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP30];
344
345 case BFD_RELOC_SPARC_WDISP22:
346 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP22];
347
348 case BFD_RELOC_HI22:
349 return &_bfd_sparc_elf_howto_table[R_SPARC_HI22];
350
351 case BFD_RELOC_SPARC22:
352 return &_bfd_sparc_elf_howto_table[R_SPARC_22];
353
354 case BFD_RELOC_SPARC13:
355 return &_bfd_sparc_elf_howto_table[R_SPARC_13];
356
357 case BFD_RELOC_LO10:
358 return &_bfd_sparc_elf_howto_table[R_SPARC_LO10];
359
360 case BFD_RELOC_SPARC_GOT10:
361 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT10];
362
363 case BFD_RELOC_SPARC_GOT13:
364 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT13];
365
366 case BFD_RELOC_SPARC_GOT22:
367 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT22];
368
369 case BFD_RELOC_SPARC_PC10:
370 return &_bfd_sparc_elf_howto_table[R_SPARC_PC10];
371
372 case BFD_RELOC_SPARC_PC22:
373 return &_bfd_sparc_elf_howto_table[R_SPARC_PC22];
374
375 case BFD_RELOC_SPARC_WPLT30:
376 return &_bfd_sparc_elf_howto_table[R_SPARC_WPLT30];
377
378 case BFD_RELOC_SPARC_COPY:
379 return &_bfd_sparc_elf_howto_table[R_SPARC_COPY];
380
381 case BFD_RELOC_SPARC_GLOB_DAT:
382 return &_bfd_sparc_elf_howto_table[R_SPARC_GLOB_DAT];
383
384 case BFD_RELOC_SPARC_JMP_SLOT:
385 return &_bfd_sparc_elf_howto_table[R_SPARC_JMP_SLOT];
386
387 case BFD_RELOC_SPARC_RELATIVE:
388 return &_bfd_sparc_elf_howto_table[R_SPARC_RELATIVE];
389
390 case BFD_RELOC_SPARC_UA32:
391 return &_bfd_sparc_elf_howto_table[R_SPARC_UA32];
392
393 case BFD_RELOC_SPARC_PLT32:
394 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT32];
395
396 case BFD_RELOC_SPARC_10:
397 return &_bfd_sparc_elf_howto_table[R_SPARC_10];
398
399 case BFD_RELOC_SPARC_11:
400 return &_bfd_sparc_elf_howto_table[R_SPARC_11];
401
402 case BFD_RELOC_SPARC_64:
403 return &_bfd_sparc_elf_howto_table[R_SPARC_64];
404
405 case BFD_RELOC_SPARC_OLO10:
406 return &_bfd_sparc_elf_howto_table[R_SPARC_OLO10];
407
408 case BFD_RELOC_SPARC_HH22:
409 return &_bfd_sparc_elf_howto_table[R_SPARC_HH22];
410
411 case BFD_RELOC_SPARC_HM10:
412 return &_bfd_sparc_elf_howto_table[R_SPARC_HM10];
413
414 case BFD_RELOC_SPARC_LM22:
415 return &_bfd_sparc_elf_howto_table[R_SPARC_LM22];
416
417 case BFD_RELOC_SPARC_PC_HH22:
418 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HH22];
419
420 case BFD_RELOC_SPARC_PC_HM10:
421 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HM10];
422
423 case BFD_RELOC_SPARC_PC_LM22:
424 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_LM22];
425
426 case BFD_RELOC_SPARC_WDISP16:
427 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP16];
428
429 case BFD_RELOC_SPARC_WDISP19:
430 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP19];
431
432 case BFD_RELOC_SPARC_7:
433 return &_bfd_sparc_elf_howto_table[R_SPARC_7];
434
435 case BFD_RELOC_SPARC_5:
436 return &_bfd_sparc_elf_howto_table[R_SPARC_5];
437
438 case BFD_RELOC_SPARC_6:
439 return &_bfd_sparc_elf_howto_table[R_SPARC_6];
440
441 case BFD_RELOC_SPARC_DISP64:
442 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP64];
443
444 case BFD_RELOC_SPARC_PLT64:
445 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT64];
446
447 case BFD_RELOC_SPARC_HIX22:
448 return &_bfd_sparc_elf_howto_table[R_SPARC_HIX22];
449
450 case BFD_RELOC_SPARC_LOX10:
451 return &_bfd_sparc_elf_howto_table[R_SPARC_LOX10];
452
453 case BFD_RELOC_SPARC_H44:
454 return &_bfd_sparc_elf_howto_table[R_SPARC_H44];
455
456 case BFD_RELOC_SPARC_M44:
457 return &_bfd_sparc_elf_howto_table[R_SPARC_M44];
458
459 case BFD_RELOC_SPARC_L44:
460 return &_bfd_sparc_elf_howto_table[R_SPARC_L44];
461
462 case BFD_RELOC_SPARC_REGISTER:
463 return &_bfd_sparc_elf_howto_table[R_SPARC_REGISTER];
464
465 case BFD_RELOC_SPARC_UA64:
466 return &_bfd_sparc_elf_howto_table[R_SPARC_UA64];
467
468 case BFD_RELOC_SPARC_UA16:
469 return &_bfd_sparc_elf_howto_table[R_SPARC_UA16];
470
471 case BFD_RELOC_SPARC_TLS_GD_HI22:
472 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_HI22];
473
474 case BFD_RELOC_SPARC_TLS_GD_LO10:
475 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_LO10];
476
477 case BFD_RELOC_SPARC_TLS_GD_ADD:
478 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_ADD];
479
480 case BFD_RELOC_SPARC_TLS_GD_CALL:
481 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_CALL];
482
483 case BFD_RELOC_SPARC_TLS_LDM_HI22:
484 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_HI22];
485
486 case BFD_RELOC_SPARC_TLS_LDM_LO10:
487 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_LO10];
488
489 case BFD_RELOC_SPARC_TLS_LDM_ADD:
490 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_ADD];
491
492 case BFD_RELOC_SPARC_TLS_LDM_CALL:
493 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_CALL];
494
495 case BFD_RELOC_SPARC_TLS_LDO_HIX22:
496 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_HIX22];
497
498 case BFD_RELOC_SPARC_TLS_LDO_LOX10:
499 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_LOX10];
500
501 case BFD_RELOC_SPARC_TLS_LDO_ADD:
502 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_ADD];
503
504 case BFD_RELOC_SPARC_TLS_IE_HI22:
505 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_HI22];
506
507 case BFD_RELOC_SPARC_TLS_IE_LO10:
508 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LO10];
509
510 case BFD_RELOC_SPARC_TLS_IE_LD:
511 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LD];
512
513 case BFD_RELOC_SPARC_TLS_IE_LDX:
514 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LDX];
515
516 case BFD_RELOC_SPARC_TLS_IE_ADD:
517 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_ADD];
518
519 case BFD_RELOC_SPARC_TLS_LE_HIX22:
520 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_HIX22];
521
522 case BFD_RELOC_SPARC_TLS_LE_LOX10:
523 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_LOX10];
524
525 case BFD_RELOC_SPARC_TLS_DTPMOD32:
526 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD32];
527
528 case BFD_RELOC_SPARC_TLS_DTPMOD64:
529 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD64];
530
531 case BFD_RELOC_SPARC_TLS_DTPOFF32:
532 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF32];
533
534 case BFD_RELOC_SPARC_TLS_DTPOFF64:
535 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF64];
536
537 case BFD_RELOC_SPARC_TLS_TPOFF32:
538 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF32];
539
540 case BFD_RELOC_SPARC_TLS_TPOFF64:
541 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF64];
542
543 case BFD_RELOC_SPARC_GOTDATA_HIX22:
544 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_HIX22];
545
546 case BFD_RELOC_SPARC_GOTDATA_LOX10:
547 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_LOX10];
548
549 case BFD_RELOC_SPARC_GOTDATA_OP_HIX22:
550 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_HIX22];
551
552 case BFD_RELOC_SPARC_GOTDATA_OP_LOX10:
553 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_LOX10];
554
555 case BFD_RELOC_SPARC_GOTDATA_OP:
556 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP];
557
2615994e
DM		 558 case BFD_RELOC_SPARC_H34:
559 return &_bfd_sparc_elf_howto_table[R_SPARC_H34];
560
561 case BFD_RELOC_SPARC_SIZE32:
562 return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE32];
563
564 case BFD_RELOC_SPARC_SIZE64:
565 return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE64];
566
567 case BFD_RELOC_SPARC_WDISP10:
568 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP10];
569
d0c9aeb3
DM		 570 case BFD_RELOC_SPARC_JMP_IREL:
571 return &sparc_jmp_irel_howto;
572
573 case BFD_RELOC_SPARC_IRELATIVE:
574 return &sparc_irelative_howto;
575
22b75d0a
DM		 576 case BFD_RELOC_VTABLE_INHERIT:
577 return &sparc_vtinherit_howto;
578
579 case BFD_RELOC_VTABLE_ENTRY:
580 return &sparc_vtentry_howto;
581
582 case BFD_RELOC_SPARC_REV32:
583 return &sparc_rev32_howto;
584
585 default:
679b7c76 586 break;
22b75d0a
DM		 587 }
588 bfd_set_error (bfd_error_bad_value);
589 return NULL;
590}
591
157090f7
AM		 592reloc_howto_type *
593_bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
594 const char *r_name)
595{
596 unsigned int i;
597
598 for (i = 0;
599 i < (sizeof (_bfd_sparc_elf_howto_table)
600 / sizeof (_bfd_sparc_elf_howto_table[0]));
601 i++)
602 if (_bfd_sparc_elf_howto_table[i].name != NULL
603 && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
604 return &_bfd_sparc_elf_howto_table[i];
605
606 if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
607 return &sparc_vtinherit_howto;
608 if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
609 return &sparc_vtentry_howto;
610 if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
611 return &sparc_rev32_howto;
612
613 return NULL;
614}
615
22b75d0a
DM		 616reloc_howto_type *
617_bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type)
618{
619 switch (r_type)
620 {
d0c9aeb3
DM		 621 case R_SPARC_JMP_IREL:
622 return &sparc_jmp_irel_howto;
623
624 case R_SPARC_IRELATIVE:
625 return &sparc_irelative_howto;
626
22b75d0a
DM		 627 case R_SPARC_GNU_VTINHERIT:
628 return &sparc_vtinherit_howto;
629
630 case R_SPARC_GNU_VTENTRY:
631 return &sparc_vtentry_howto;
632
633 case R_SPARC_REV32:
634 return &sparc_rev32_howto;
635
636 default:
d0fb9a8d
JJ		 637 if (r_type >= (unsigned int) R_SPARC_max_std)
638 {
4eca0228 639 _bfd_error_handler (_("invalid relocation type %d"), (int) r_type);
d0fb9a8d
JJ		 640 r_type = R_SPARC_NONE;
641 }
22b75d0a
DM		 642 return &_bfd_sparc_elf_howto_table[r_type];
643 }
644}
645
646/* Both 32-bit and 64-bit sparc encode this in an identical manner,
647 so just take advantage of that. */
648#define SPARC_ELF_R_TYPE(r_info) \
649 ((r_info) & 0xff)
650
651void
652_bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
653 Elf_Internal_Rela *dst)
654{
655 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
656
657 cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type);
658}
659\f
660
661/* The nop opcode we use. */
662#define SPARC_NOP 0x01000000
663
664#define SPARC_INSN_BYTES 4
665
666/* The SPARC linker needs to keep track of the number of relocs that it
667 decides to copy as dynamic relocs in check_relocs for each symbol.
668 This is so that it can later discard them if they are found to be
669 unnecessary. We store the information in a field extending the
670 regular ELF linker hash table. */
671
672struct _bfd_sparc_elf_dyn_relocs
673{
674 struct _bfd_sparc_elf_dyn_relocs *next;
675
676 /* The input section of the reloc. */
677 asection *sec;
678
679 /* Total number of relocs copied for the input section. */
680 bfd_size_type count;
681
682 /* Number of pc-relative relocs copied for the input section. */
683 bfd_size_type pc_count;
684};
685
bb1dd176
QZ		 686/* Is an undefined weak symbol resolved to 0 ?
687 Reference to an undefined weak symbol is resolved to 0 when
688 building an executable if it isn't dynamic and
689 1. Has non-GOT/non-PLT relocations in text section.
690 Or
691 2. Has no GOT/PLT relocation. */
692#define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
693 ((EH)->elf.root.type == bfd_link_hash_undefweak \
694 && bfd_link_executable (INFO) \
695 && (_bfd_sparc_elf_hash_table (INFO)->interp == NULL \
696 || !(EH)->has_got_reloc \
697 || (EH)->has_non_got_reloc \
698 || !(INFO)->dynamic_undefined_weak))
699
22b75d0a
DM		 700/* SPARC ELF linker hash entry. */
701
702struct _bfd_sparc_elf_link_hash_entry
703{
704 struct elf_link_hash_entry elf;
705
706 /* Track dynamic relocs copied for this symbol. */
707 struct _bfd_sparc_elf_dyn_relocs *dyn_relocs;
708
709#define GOT_UNKNOWN 0
710#define GOT_NORMAL 1
711#define GOT_TLS_GD 2
712#define GOT_TLS_IE 3
713 unsigned char tls_type;
bb1dd176
QZ		 714
715 /* Symbol has GOT or PLT relocations. */
716 unsigned int has_got_reloc : 1;
717
718 /* Symbol has non-GOT/non-PLT relocations in text sections. */
719 unsigned int has_non_got_reloc : 1;
720
22b75d0a
DM		 721};
722
723#define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
724
725struct _bfd_sparc_elf_obj_tdata
726{
727 struct elf_obj_tdata root;
728
729 /* tls_type for each local got entry. */
730 char *local_got_tls_type;
731
732 /* TRUE if TLS GD relocs has been seen for this object. */
733 bfd_boolean has_tlsgd;
734};
735
736#define _bfd_sparc_elf_tdata(abfd) \
737 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
738
739#define _bfd_sparc_elf_local_got_tls_type(abfd) \
740 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
741
0ffa91dd
NC		 742#define is_sparc_elf(bfd) \
743 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
744 && elf_tdata (bfd) != NULL \
4dfe6ac6 745 && elf_object_id (bfd) == SPARC_ELF_DATA)
0ffa91dd 746
22b75d0a
DM		 747bfd_boolean
748_bfd_sparc_elf_mkobject (bfd *abfd)
749{
0ffa91dd 750 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
4dfe6ac6 751 SPARC_ELF_DATA);
22b75d0a
DM		 752}
753
754static void
91d6fa6a 755sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 756{
91d6fa6a 757 bfd_put_32 (abfd, val, ptr);
22b75d0a
DM		 758}
759
760static void
91d6fa6a 761sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 762{
91d6fa6a 763 bfd_put_64 (abfd, val, ptr);
22b75d0a
DM		 764}
765
766static void
39817122 767sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
22b75d0a 768{
39817122
RS		 769 const struct elf_backend_data *bed;
770 bfd_byte *loc;
22b75d0a 771
39817122
RS		 772 bed = get_elf_backend_data (abfd);
773 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
774 bed->s->swap_reloca_out (abfd, rel, loc);
22b75d0a
DM		 775}
776
777static bfd_vma
e459dc7b 778sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 779 bfd_vma rel_index ATTRIBUTE_UNUSED,
e459dc7b 780 bfd_vma type ATTRIBUTE_UNUSED)
22b75d0a 781{
91d6fa6a 782 return ELF64_R_INFO (rel_index,
22b75d0a
DM		 783 (in_rel ?
784 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
785 type) : type));
786}
787
788static bfd_vma
789sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 790 bfd_vma rel_index, bfd_vma type)
22b75d0a 791{
91d6fa6a 792 return ELF32_R_INFO (rel_index, type);
22b75d0a
DM		 793}
794
795static bfd_vma
796sparc_elf_r_symndx_64 (bfd_vma r_info)
797{
e8be8da4
DM		 798 bfd_vma r_symndx = ELF32_R_SYM (r_info);
799 return (r_symndx >> 24);
22b75d0a
DM		 800}
801
802static bfd_vma
803sparc_elf_r_symndx_32 (bfd_vma r_info)
804{
805 return ELF32_R_SYM (r_info);
806}
807
808/* PLT/GOT stuff */
809
810#define PLT32_ENTRY_SIZE 12
811#define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
812
813/* The first four entries in a 32-bit procedure linkage table are reserved,
814 and the initial contents are unimportant (we zero them out).
815 Subsequent entries look like this. See the SVR4 ABI SPARC
816 supplement to see how this works. */
817
818/* sethi %hi(.-.plt0),%g1. We fill in the address later. */
819#define PLT32_ENTRY_WORD0 0x03000000
820/* b,a .plt0. We fill in the offset later. */
821#define PLT32_ENTRY_WORD1 0x30800000
822/* nop. */
823#define PLT32_ENTRY_WORD2 SPARC_NOP
824
825static int
826sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
827 bfd_vma max ATTRIBUTE_UNUSED,
828 bfd_vma *r_offset)
829{
830 bfd_put_32 (output_bfd,
831 PLT32_ENTRY_WORD0 + offset,
832 splt->contents + offset);
833 bfd_put_32 (output_bfd,
834 (PLT32_ENTRY_WORD1
835 + (((- (offset + 4)) >> 2) & 0x3fffff)),
836 splt->contents + offset + 4);
837 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
838 splt->contents + offset + 8);
839
840 *r_offset = offset;
841
842 return offset / PLT32_ENTRY_SIZE - 4;
843}
844
845/* Both the headers and the entries are icache aligned. */
846#define PLT64_ENTRY_SIZE 32
847#define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
848#define PLT64_LARGE_THRESHOLD 32768
849
850static int
851sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
852 bfd_vma max, bfd_vma *r_offset)
853{
854 unsigned char *entry = splt->contents + offset;
855 const unsigned int nop = SPARC_NOP;
91d6fa6a 856 int plt_index;
22b75d0a
DM		 857
858 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
859 {
860 unsigned int sethi, ba;
861
862 *r_offset = offset;
863
91d6fa6a 864 plt_index = (offset / PLT64_ENTRY_SIZE);
22b75d0a 865
91d6fa6a 866 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
22b75d0a
DM		 867 ba = 0x30680000
868 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
869
870 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
871 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
872 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
873 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
874 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
875 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
876 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
877 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
878 }
879 else
880 {
881 unsigned char *ptr;
882 unsigned int ldx;
883 int block, last_block, ofs, last_ofs, chunks_this_block;
884 const int insn_chunk_size = (6 * 4);
885 const int ptr_chunk_size = (1 * 8);
886 const int entries_per_block = 160;
887 const int block_size = entries_per_block * (insn_chunk_size
888 + ptr_chunk_size);
889
890 /* Entries 32768 and higher are grouped into blocks of 160.
891 The blocks are further subdivided into 160 sequences of
892 6 instructions and 160 pointers. If a block does not require
893 the full 160 entries, let's say it requires N, then there
894 will be N sequences of 6 instructions and N pointers. */
895
896 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
897 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
898
899 block = offset / block_size;
900 last_block = max / block_size;
901 if (block != last_block)
902 {
903 chunks_this_block = 160;
904 }
905 else
906 {
907 last_ofs = max % block_size;
908 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
909 }
910
911 ofs = offset % block_size;
912
91d6fa6a 913 plt_index = (PLT64_LARGE_THRESHOLD +
22b75d0a
DM		 914 (block * 160) +
915 (ofs / insn_chunk_size));
916
917 ptr = splt->contents
918 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
919 + (block * block_size)
920 + (chunks_this_block * insn_chunk_size)
921 + (ofs / insn_chunk_size) * ptr_chunk_size;
922
923 *r_offset = (bfd_vma) (ptr - splt->contents);
924
925 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
926
927 /* mov %o7,%g5
928 call .+8
929 nop
930 ldx [%o7+P],%g1
931 jmpl %o7+%g1,%g1
932 mov %g5,%o7 */
933 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
934 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
935 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
936 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
937 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
938 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
939
940 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
941 }
942
91d6fa6a 943 return plt_index - 4;
22b75d0a
DM		 944}
945
910600e9
RS		 946/* The format of the first PLT entry in a VxWorks executable. */
947static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
948 {
949 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
950 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
951 0xc4008000, /* ld [ %g2 ], %g2 */
952 0x81c08000, /* jmp %g2 */
953 0x01000000 /* nop */
954 };
955
956/* The format of subsequent PLT entries. */
957static const bfd_vma sparc_vxworks_exec_plt_entry[] =
958 {
959 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
960 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
961 0xc2004000, /* ld [ %g1 ], %g1 */
962 0x81c04000, /* jmp %g1 */
963 0x01000000, /* nop */
964 0x03000000, /* sethi %hi(f@pltindex), %g1 */
965 0x10800000, /* b _PLT_resolve */
966 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
967 };
968
969/* The format of the first PLT entry in a VxWorks shared object. */
970static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
971 {
972 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
973 0x81c08000, /* jmp %g2 */
974 0x01000000 /* nop */
975 };
976
977/* The format of subsequent PLT entries. */
978static const bfd_vma sparc_vxworks_shared_plt_entry[] =
979 {
980 0x03000000, /* sethi %hi(f@got), %g1 */
981 0x82106000, /* or %g1, %lo(f@got), %g1 */
982 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
983 0x81c04000, /* jmp %g1 */
984 0x01000000, /* nop */
985 0x03000000, /* sethi %hi(f@pltindex), %g1 */
986 0x10800000, /* b _PLT_resolve */
987 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
988 };
989
22b75d0a
DM		 990#define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
991 htab->put_word(bfd, val, ptr)
992
22b75d0a
DM		 993#define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
994 htab->r_info(in_rel, index, type)
995
996#define SPARC_ELF_R_SYMNDX(htab, r_info) \
997 htab->r_symndx(r_info)
998
999#define SPARC_ELF_WORD_BYTES(htab) \
1000 htab->bytes_per_word
1001
1002#define SPARC_ELF_RELA_BYTES(htab) \
1003 htab->bytes_per_rela
1004
1005#define SPARC_ELF_DTPOFF_RELOC(htab) \
1006 htab->dtpoff_reloc
1007
1008#define SPARC_ELF_DTPMOD_RELOC(htab) \
1009 htab->dtpmod_reloc
1010
1011#define SPARC_ELF_TPOFF_RELOC(htab) \
1012 htab->tpoff_reloc
1013
1014#define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
1015 htab->build_plt_entry (obfd, splt, off, max, r_off)
1016
1017/* Create an entry in an SPARC ELF linker hash table. */
1018
1019static struct bfd_hash_entry *
1020link_hash_newfunc (struct bfd_hash_entry *entry,
1021 struct bfd_hash_table *table, const char *string)
1022{
1023 /* Allocate the structure if it has not already been allocated by a
1024 subclass. */
1025 if (entry == NULL)
1026 {
1027 entry = bfd_hash_allocate (table,
1028 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1029 if (entry == NULL)
1030 return entry;
1031 }
1032
1033 /* Call the allocation method of the superclass. */
1034 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1035 if (entry != NULL)
1036 {
1037 struct _bfd_sparc_elf_link_hash_entry *eh;
1038
1039 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
1040 eh->dyn_relocs = NULL;
1041 eh->tls_type = GOT_UNKNOWN;
bb1dd176
QZ		 1042 eh->has_got_reloc = 0;
1043 eh->has_non_got_reloc = 0;
22b75d0a
DM		 1044 }
1045
1046 return entry;
1047}
1048
1049/* The name of the dynamic interpreter. This is put in the .interp
1050 section. */
1051
1052#define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1053#define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1054
d0c9aeb3
DM		 1055/* Compute a hash of a local hash entry. We use elf_link_hash_entry
1056 for local symbol so that we can handle local STT_GNU_IFUNC symbols
1057 as global symbol. We reuse indx and dynstr_index for local symbol
1058 hash since they aren't used by global symbols in this backend. */
1059
1060static hashval_t
1061elf_sparc_local_htab_hash (const void *ptr)
1062{
1063 struct elf_link_hash_entry *h
1064 = (struct elf_link_hash_entry *) ptr;
1065 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1066}
1067
1068/* Compare local hash entries. */
1069
1070static int
1071elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1072{
1073 struct elf_link_hash_entry *h1
1074 = (struct elf_link_hash_entry *) ptr1;
1075 struct elf_link_hash_entry *h2
1076 = (struct elf_link_hash_entry *) ptr2;
1077
1078 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1079}
1080
1081/* Find and/or create a hash entry for local symbol. */
1082
1083static struct elf_link_hash_entry *
1084elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1085 bfd *abfd, const Elf_Internal_Rela *rel,
1086 bfd_boolean create)
1087{
1088 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1089 asection *sec = abfd->sections;
1090 unsigned long r_symndx;
1091 hashval_t h;
1092 void **slot;
1093
1094 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1095 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1096
1097 e.elf.indx = sec->id;
1098 e.elf.dynstr_index = r_symndx;
1099 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1100 create ? INSERT : NO_INSERT);
1101
1102 if (!slot)
1103 return NULL;
1104
1105 if (*slot)
1106 {
1107 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1108 return &ret->elf;
1109 }
1110
1111 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1112 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1113 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1114 if (ret)
1115 {
1116 memset (ret, 0, sizeof (*ret));
1117 ret->elf.indx = sec->id;
1118 ret->elf.dynstr_index = r_symndx;
1119 ret->elf.dynindx = -1;
1120 ret->elf.plt.offset = (bfd_vma) -1;
1121 ret->elf.got.offset = (bfd_vma) -1;
1122 *slot = ret;
1123 }
1124 return &ret->elf;
1125}
1126
68faa637
AM		 1127/* Destroy a SPARC ELF linker hash table. */
1128
d495ab0d
AM		 1129static void
1130_bfd_sparc_elf_link_hash_table_free (bfd *obfd)
68faa637
AM		 1131{
1132 struct _bfd_sparc_elf_link_hash_table *htab
d495ab0d 1133 = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
68faa637
AM		 1134
1135 if (htab->loc_hash_table)
1136 htab_delete (htab->loc_hash_table);
1137 if (htab->loc_hash_memory)
1138 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
d495ab0d 1139 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM		 1140}
1141
22b75d0a
DM		 1142/* Create a SPARC ELF linker hash table. */
1143
1144struct bfd_link_hash_table *
1145_bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1146{
1147 struct _bfd_sparc_elf_link_hash_table *ret;
1148 bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1149
1150 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1151 if (ret == NULL)
1152 return NULL;
1153
1154 if (ABI_64_P (abfd))
1155 {
1156 ret->put_word = sparc_put_word_64;
22b75d0a
DM		 1157 ret->r_info = sparc_elf_r_info_64;
1158 ret->r_symndx = sparc_elf_r_symndx_64;
22b75d0a
DM		 1159 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1160 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1161 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1162 ret->word_align_power = 3;
1163 ret->align_power_max = 4;
1164 ret->bytes_per_word = 8;
1165 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
c2e70a82 1166 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
22b75d0a 1167 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1168
1169 ret->build_plt_entry = sparc64_plt_entry_build;
1170 ret->plt_header_size = PLT64_HEADER_SIZE;
1171 ret->plt_entry_size = PLT64_ENTRY_SIZE;
22b75d0a
DM		 1172 }
1173 else
1174 {
1175 ret->put_word = sparc_put_word_32;
22b75d0a
DM		 1176 ret->r_info = sparc_elf_r_info_32;
1177 ret->r_symndx = sparc_elf_r_symndx_32;
22b75d0a
DM		 1178 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1179 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1180 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1181 ret->word_align_power = 2;
1182 ret->align_power_max = 3;
1183 ret->bytes_per_word = 4;
1184 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
c2e70a82 1185 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
22b75d0a 1186 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1187
1188 ret->build_plt_entry = sparc32_plt_entry_build;
1189 ret->plt_header_size = PLT32_HEADER_SIZE;
1190 ret->plt_entry_size = PLT32_ENTRY_SIZE;
22b75d0a
DM		 1191 }
1192
66eb6687 1193 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC		 1194 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1195 SPARC_ELF_DATA))
22b75d0a
DM		 1196 {
1197 free (ret);
1198 return NULL;
1199 }
1200
d0c9aeb3
DM		 1201 ret->loc_hash_table = htab_try_create (1024,
1202 elf_sparc_local_htab_hash,
1203 elf_sparc_local_htab_eq,
1204 NULL);
1205 ret->loc_hash_memory = objalloc_create ();
1206 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1207 {
d495ab0d 1208 _bfd_sparc_elf_link_hash_table_free (abfd);
d0c9aeb3
DM		 1209 return NULL;
1210 }
d495ab0d 1211 ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
d0c9aeb3 1212
22b75d0a
DM		 1213 return &ret->elf.root;
1214}
1215
22b75d0a
DM		 1216/* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1217 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1218 hash table. */
1219
1220bfd_boolean
1221_bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1222 struct bfd_link_info *info)
1223{
1224 struct _bfd_sparc_elf_link_hash_table *htab;
1225
1226 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 1227 BFD_ASSERT (htab != NULL);
1228
22b75d0a
DM		 1229 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1230 return FALSE;
1231
910600e9
RS		 1232 if (htab->is_vxworks)
1233 {
1234 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1235 return FALSE;
0e1862bb 1236 if (bfd_link_pic (info))
910600e9
RS		 1237 {
1238 htab->plt_header_size
1239 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1240 htab->plt_entry_size
1241 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1242 }
1243 else
1244 {
1245 htab->plt_header_size
1246 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1247 htab->plt_entry_size
1248 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1249 }
1250 }
910600e9 1251
9d19e4fd
AM		 1252 if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1253 || (!bfd_link_pic (info) && !htab->elf.srelbss))
22b75d0a
DM		 1254 abort ();
1255
1256 return TRUE;
1257}
1258
d0c9aeb3
DM		 1259static bfd_boolean
1260create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1261{
1262 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1263 struct elf_link_hash_table *htab = elf_hash_table (info);
1264 flagword flags, pltflags;
1265 asection *s;
1266
1267 if (htab->irelifunc != NULL || htab->iplt != NULL)
1268 return TRUE;
1269
1270 flags = bed->dynamic_sec_flags;
1271 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1272
1273 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1274 if (s == NULL
1275 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1276 return FALSE;
1277 htab->iplt = s;
1278
1279 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1280 flags | SEC_READONLY);
1281 if (s == NULL
1282 || ! bfd_set_section_alignment (abfd, s,
1283 bed->s->log_file_align))
1284 return FALSE;
1285 htab->irelplt = s;
1286
1287 return TRUE;
1288}
1289
22b75d0a
DM		 1290/* Copy the extra info we tack onto an elf_link_hash_entry. */
1291
1292void
fcfa13d2 1293_bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
22b75d0a
DM		 1294 struct elf_link_hash_entry *dir,
1295 struct elf_link_hash_entry *ind)
1296{
1297 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1298
1299 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1300 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1301
1302 if (eind->dyn_relocs != NULL)
1303 {
1304 if (edir->dyn_relocs != NULL)
1305 {
1306 struct _bfd_sparc_elf_dyn_relocs **pp;
1307 struct _bfd_sparc_elf_dyn_relocs *p;
1308
fcfa13d2 1309 /* Add reloc counts against the indirect sym to the direct sym
22b75d0a
DM		 1310 list. Merge any entries against the same section. */
1311 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1312 {
1313 struct _bfd_sparc_elf_dyn_relocs *q;
1314
1315 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1316 if (q->sec == p->sec)
1317 {
1318 q->pc_count += p->pc_count;
1319 q->count += p->count;
1320 *pp = p->next;
1321 break;
1322 }
1323 if (q == NULL)
1324 pp = &p->next;
1325 }
1326 *pp = edir->dyn_relocs;
1327 }
1328
1329 edir->dyn_relocs = eind->dyn_relocs;
1330 eind->dyn_relocs = NULL;
1331 }
1332
1333 if (ind->root.type == bfd_link_hash_indirect
1334 && dir->got.refcount <= 0)
1335 {
1336 edir->tls_type = eind->tls_type;
1337 eind->tls_type = GOT_UNKNOWN;
1338 }
bb1dd176
QZ		 1339
1340 /* Copy has_got_reloc and has_non_got_reloc. */
1341 edir->has_got_reloc |= eind->has_got_reloc;
1342 edir->has_non_got_reloc |= eind->has_non_got_reloc;
1343
fcfa13d2 1344 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
22b75d0a
DM		 1345}
1346
1347static int
1348sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1349 int r_type, int is_local)
1350{
1351 if (! ABI_64_P (abfd)
1352 && r_type == R_SPARC_TLS_GD_HI22
1353 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1354 r_type = R_SPARC_REV32;
1355
0fb7012e 1356 if (!bfd_link_executable (info))
22b75d0a
DM		 1357 return r_type;
1358
1359 switch (r_type)
1360 {
1361 case R_SPARC_TLS_GD_HI22:
1362 if (is_local)
1363 return R_SPARC_TLS_LE_HIX22;
1364 return R_SPARC_TLS_IE_HI22;
1365 case R_SPARC_TLS_GD_LO10:
1366 if (is_local)
1367 return R_SPARC_TLS_LE_LOX10;
1368 return R_SPARC_TLS_IE_LO10;
1369 case R_SPARC_TLS_IE_HI22:
1370 if (is_local)
1371 return R_SPARC_TLS_LE_HIX22;
1372 return r_type;
1373 case R_SPARC_TLS_IE_LO10:
1374 if (is_local)
1375 return R_SPARC_TLS_LE_LOX10;
1376 return r_type;
1377 case R_SPARC_TLS_LDM_HI22:
1378 return R_SPARC_TLS_LE_HIX22;
1379 case R_SPARC_TLS_LDM_LO10:
1380 return R_SPARC_TLS_LE_LOX10;
1381 }
1382
1383 return r_type;
1384}
1385\f
1386/* Look through the relocs for a section during the first phase, and
1387 allocate space in the global offset table or procedure linkage
1388 table. */
1389
1390bfd_boolean
1391_bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1392 asection *sec, const Elf_Internal_Rela *relocs)
1393{
1394 struct _bfd_sparc_elf_link_hash_table *htab;
1395 Elf_Internal_Shdr *symtab_hdr;
1396 struct elf_link_hash_entry **sym_hashes;
22b75d0a
DM		 1397 const Elf_Internal_Rela *rel;
1398 const Elf_Internal_Rela *rel_end;
1399 asection *sreloc;
1400 int num_relocs;
1401 bfd_boolean checked_tlsgd = FALSE;
1402
0e1862bb 1403 if (bfd_link_relocatable (info))
22b75d0a
DM		 1404 return TRUE;
1405
1406 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1407 BFD_ASSERT (htab != NULL);
0ffa91dd 1408 symtab_hdr = &elf_symtab_hdr (abfd);
22b75d0a 1409 sym_hashes = elf_sym_hashes (abfd);
22b75d0a
DM		 1410
1411 sreloc = NULL;
1412
1413 if (ABI_64_P (abfd))
d4730f92 1414 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
22b75d0a
DM		 1415 else
1416 num_relocs = sec->reloc_count;
0ffa91dd
NC		 1417
1418 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1419
d0c9aeb3
DM		 1420 if (htab->elf.dynobj == NULL)
1421 htab->elf.dynobj = abfd;
1422 if (!create_ifunc_sections (htab->elf.dynobj, info))
1423 return FALSE;
1424
22b75d0a
DM		 1425 rel_end = relocs + num_relocs;
1426 for (rel = relocs; rel < rel_end; rel++)
1427 {
1428 unsigned int r_type;
d42c267e 1429 unsigned int r_symndx;
22b75d0a 1430 struct elf_link_hash_entry *h;
bb1dd176 1431 struct _bfd_sparc_elf_link_hash_entry *eh;
d0c9aeb3 1432 Elf_Internal_Sym *isym;
22b75d0a
DM		 1433
1434 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1435 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1436
1437 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1438 {
695344c0 1439 /* xgettext:c-format */
4eca0228 1440 _bfd_error_handler (_("%B: bad symbol index: %d"), abfd, r_symndx);
22b75d0a
DM		 1441 return FALSE;
1442 }
1443
d0c9aeb3 1444 isym = NULL;
22b75d0a 1445 if (r_symndx < symtab_hdr->sh_info)
d0c9aeb3
DM		 1446 {
1447 /* A local symbol. */
1448 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1449 abfd, r_symndx);
1450 if (isym == NULL)
1451 return FALSE;
1452
1453 /* Check relocation against local STT_GNU_IFUNC symbol. */
1454 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1455 {
1456 h = elf_sparc_get_local_sym_hash (htab, abfd, rel,
1457 TRUE);
1458 if (h == NULL)
1459 return FALSE;
68ffbac6 1460
d0c9aeb3
DM		 1461 /* Fake a STT_GNU_IFUNC symbol. */
1462 h->type = STT_GNU_IFUNC;
1463 h->def_regular = 1;
1464 h->ref_regular = 1;
1465 h->forced_local = 1;
1466 h->root.type = bfd_link_hash_defined;
1467 }
1468 else
1469 h = NULL;
1470 }
22b75d0a 1471 else
973a3492
L		 1472 {
1473 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1474 while (h->root.type == bfd_link_hash_indirect
1475 || h->root.type == bfd_link_hash_warning)
1476 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1477 }
22b75d0a 1478
d0c9aeb3
DM		 1479 if (h && h->type == STT_GNU_IFUNC)
1480 {
1481 if (h->def_regular)
b48ca1d4
DM		 1482 {
1483 h->ref_regular = 1;
1484 h->plt.refcount += 1;
1485 }
d0c9aeb3
DM		 1486 }
1487
22b75d0a
DM		 1488 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1489 with R_SPARC_TLS_GD_HI22. */
1490 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1491 switch (r_type)
1492 {
1493 case R_SPARC_TLS_GD_HI22:
1494 {
1495 const Elf_Internal_Rela *relt;
1496
1497 for (relt = rel + 1; relt < rel_end; relt++)
1498 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1499 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1500 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1501 break;
1502 checked_tlsgd = TRUE;
1503 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1504 }
1505 break;
1506 case R_SPARC_TLS_GD_LO10:
1507 case R_SPARC_TLS_GD_ADD:
1508 case R_SPARC_TLS_GD_CALL:
1509 checked_tlsgd = TRUE;
1510 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1511 break;
1512 }
1513
1514 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
bb1dd176
QZ		 1515 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1516
22b75d0a
DM		 1517 switch (r_type)
1518 {
1519 case R_SPARC_TLS_LDM_HI22:
1520 case R_SPARC_TLS_LDM_LO10:
1521 htab->tls_ldm_got.refcount += 1;
bb1dd176
QZ		 1522 if (eh != NULL)
1523 eh->has_got_reloc = 1;
22b75d0a
DM		 1524 break;
1525
1526 case R_SPARC_TLS_LE_HIX22:
1527 case R_SPARC_TLS_LE_LOX10:
0fb7012e 1528 if (!bfd_link_executable (info))
22b75d0a
DM		 1529 goto r_sparc_plt32;
1530 break;
1531
1532 case R_SPARC_TLS_IE_HI22:
1533 case R_SPARC_TLS_IE_LO10:
0fb7012e 1534 if (!bfd_link_executable (info))
22b75d0a
DM		 1535 info->flags |= DF_STATIC_TLS;
1536 /* Fall through */
1537
1538 case R_SPARC_GOT10:
1539 case R_SPARC_GOT13:
1540 case R_SPARC_GOT22:
739f7f82
DM		 1541 case R_SPARC_GOTDATA_HIX22:
1542 case R_SPARC_GOTDATA_LOX10:
1543 case R_SPARC_GOTDATA_OP_HIX22:
1544 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1545 case R_SPARC_TLS_GD_HI22:
1546 case R_SPARC_TLS_GD_LO10:
1547 /* This symbol requires a global offset table entry. */
1548 {
1549 int tls_type, old_tls_type;
1550
1551 switch (r_type)
1552 {
1553 default:
1554 case R_SPARC_GOT10:
1555 case R_SPARC_GOT13:
1556 case R_SPARC_GOT22:
739f7f82
DM		 1557 case R_SPARC_GOTDATA_OP_HIX22:
1558 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1559 tls_type = GOT_NORMAL;
1560 break;
1561 case R_SPARC_TLS_GD_HI22:
1562 case R_SPARC_TLS_GD_LO10:
1563 tls_type = GOT_TLS_GD;
1564 break;
1565 case R_SPARC_TLS_IE_HI22:
1566 case R_SPARC_TLS_IE_LO10:
1567 tls_type = GOT_TLS_IE;
1568 break;
1569 }
1570
1571 if (h != NULL)
1572 {
1573 h->got.refcount += 1;
1574 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1575 }
1576 else
1577 {
1578 bfd_signed_vma *local_got_refcounts;
1579
1580 /* This is a global offset table entry for a local symbol. */
1581 local_got_refcounts = elf_local_got_refcounts (abfd);
1582 if (local_got_refcounts == NULL)
1583 {
1584 bfd_size_type size;
1585
1586 size = symtab_hdr->sh_info;
1587 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1588 local_got_refcounts = ((bfd_signed_vma *)
1589 bfd_zalloc (abfd, size));
1590 if (local_got_refcounts == NULL)
1591 return FALSE;
1592 elf_local_got_refcounts (abfd) = local_got_refcounts;
1593 _bfd_sparc_elf_local_got_tls_type (abfd)
1594 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1595 }
00c50991
DM		 1596 switch (r_type)
1597 {
1598 case R_SPARC_GOTDATA_OP_HIX22:
1599 case R_SPARC_GOTDATA_OP_LOX10:
1600 break;
1601
1602 default:
1603 local_got_refcounts[r_symndx] += 1;
1604 break;
1605 }
22b75d0a
DM		 1606 old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1607 }
1608
1609 /* If a TLS symbol is accessed using IE at least once,
1610 there is no point to use dynamic model for it. */
1611 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1612 && (old_tls_type != GOT_TLS_GD
1613 || tls_type != GOT_TLS_IE))
1614 {
1615 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1616 tls_type = old_tls_type;
1617 else
1618 {
4eca0228 1619 _bfd_error_handler
695344c0 1620 /* xgettext:c-format */
22b75d0a
DM		 1621 (_("%B: `%s' accessed both as normal and thread local symbol"),
1622 abfd, h ? h->root.root.string : "<local>");
1623 return FALSE;
1624 }
1625 }
1626
1627 if (old_tls_type != tls_type)
1628 {
1629 if (h != NULL)
1630 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1631 else
1632 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1633 }
1634 }
1635
72fbc6e5 1636 if (htab->elf.sgot == NULL)
22b75d0a 1637 {
72fbc6e5 1638 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
22b75d0a
DM		 1639 return FALSE;
1640 }
bb1dd176
QZ		 1641
1642 if (eh != NULL)
1643 eh->has_got_reloc = 1;
22b75d0a
DM		 1644 break;
1645
1646 case R_SPARC_TLS_GD_CALL:
1647 case R_SPARC_TLS_LDM_CALL:
0fb7012e 1648 if (!bfd_link_executable (info))
22b75d0a
DM		 1649 {
1650 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1651 __tls_get_addr. */
1652 struct bfd_link_hash_entry *bh = NULL;
1653 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1654 "__tls_get_addr", 0,
1655 bfd_und_section_ptr, 0,
1656 NULL, FALSE, FALSE,
1657 &bh))
1658 return FALSE;
1659 h = (struct elf_link_hash_entry *) bh;
1660 }
1661 else
1662 break;
1663 /* Fall through */
1664
1665 case R_SPARC_PLT32:
1666 case R_SPARC_WPLT30:
1667 case R_SPARC_HIPLT22:
1668 case R_SPARC_LOPLT10:
1669 case R_SPARC_PCPLT32:
1670 case R_SPARC_PCPLT22:
1671 case R_SPARC_PCPLT10:
1672 case R_SPARC_PLT64:
1673 /* This symbol requires a procedure linkage table entry. We
1674 actually build the entry in adjust_dynamic_symbol,
1675 because this might be a case of linking PIC code without
1676 linking in any dynamic objects, in which case we don't
1677 need to generate a procedure linkage table after all. */
1678
1679 if (h == NULL)
1680 {
1681 if (! ABI_64_P (abfd))
1682 {
1683 /* The Solaris native assembler will generate a WPLT30
1684 reloc for a local symbol if you assemble a call from
1685 one section to another when using -K pic. We treat
1686 it as WDISP30. */
1687 if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
1688 goto r_sparc_plt32;
1689 break;
1690 }
af1fb11f
NC		 1691 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1692 else if (r_type == R_SPARC_WPLT30)
1693 break;
22b75d0a
DM		 1694
1695 /* It does not make sense to have a procedure linkage
1696 table entry for a local symbol. */
1697 bfd_set_error (bfd_error_bad_value);
1698 return FALSE;
1699 }
1700
1701 h->needs_plt = 1;
1702
1703 {
1704 int this_r_type;
1705
1706 this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
1707 if (this_r_type == R_SPARC_PLT32
1708 || this_r_type == R_SPARC_PLT64)
1709 goto r_sparc_plt32;
1710 }
1711 h->plt.refcount += 1;
bb1dd176
QZ		 1712
1713 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1714 eh->has_got_reloc = 1;
22b75d0a
DM		 1715 break;
1716
1717 case R_SPARC_PC10:
1718 case R_SPARC_PC22:
1719 case R_SPARC_PC_HH22:
1720 case R_SPARC_PC_HM10:
1721 case R_SPARC_PC_LM22:
1722 if (h != NULL)
1723 h->non_got_ref = 1;
1724
1725 if (h != NULL
1726 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1727 break;
1728 /* Fall through. */
1729
1730 case R_SPARC_DISP8:
1731 case R_SPARC_DISP16:
1732 case R_SPARC_DISP32:
1733 case R_SPARC_DISP64:
1734 case R_SPARC_WDISP30:
1735 case R_SPARC_WDISP22:
1736 case R_SPARC_WDISP19:
1737 case R_SPARC_WDISP16:
2615994e 1738 case R_SPARC_WDISP10:
22b75d0a
DM		 1739 case R_SPARC_8:
1740 case R_SPARC_16:
1741 case R_SPARC_32:
1742 case R_SPARC_HI22:
1743 case R_SPARC_22:
1744 case R_SPARC_13:
1745 case R_SPARC_LO10:
1746 case R_SPARC_UA16:
1747 case R_SPARC_UA32:
1748 case R_SPARC_10:
1749 case R_SPARC_11:
1750 case R_SPARC_64:
1751 case R_SPARC_OLO10:
1752 case R_SPARC_HH22:
1753 case R_SPARC_HM10:
1754 case R_SPARC_LM22:
1755 case R_SPARC_7:
1756 case R_SPARC_5:
1757 case R_SPARC_6:
1758 case R_SPARC_HIX22:
1759 case R_SPARC_LOX10:
1760 case R_SPARC_H44:
1761 case R_SPARC_M44:
1762 case R_SPARC_L44:
2615994e 1763 case R_SPARC_H34:
22b75d0a
DM		 1764 case R_SPARC_UA64:
1765 if (h != NULL)
1766 h->non_got_ref = 1;
1767
bb1dd176
QZ		 1768 if (eh != NULL && (sec->flags & SEC_CODE) != 0)
1769 eh->has_non_got_reloc = 1;
1770
22b75d0a 1771 r_sparc_plt32:
0e1862bb 1772 if (h != NULL && !bfd_link_pic (info))
22b75d0a
DM		 1773 {
1774 /* We may need a .plt entry if the function this reloc
1775 refers to is in a shared lib. */
1776 h->plt.refcount += 1;
1777 }
1778
1779 /* If we are creating a shared library, and this is a reloc
1780 against a global symbol, or a non PC relative reloc
1781 against a local symbol, then we need to copy the reloc
1782 into the shared library. However, if we are linking with
1783 -Bsymbolic, we do not need to copy a reloc against a
1784 global symbol which is defined in an object we are
1785 including in the link (i.e., DEF_REGULAR is set). At
1786 this point we have not seen all the input files, so it is
1787 possible that DEF_REGULAR is not set now but will be set
1788 later (it is never cleared). In case of a weak definition,
1789 DEF_REGULAR may be cleared later by a strong definition in
1790 a shared library. We account for that possibility below by
1791 storing information in the relocs_copied field of the hash
1792 table entry. A similar situation occurs when creating
1793 shared libraries and symbol visibility changes render the
1794 symbol local.
1795
1796 If on the other hand, we are creating an executable, we
1797 may need to keep relocations for symbols satisfied by a
1798 dynamic library if we manage to avoid copy relocs for the
1799 symbol. */
0e1862bb 1800 if ((bfd_link_pic (info)
22b75d0a
DM		 1801 && (sec->flags & SEC_ALLOC) != 0
1802 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1803 || (h != NULL
72fbc6e5 1804 && (! SYMBOLIC_BIND (info, h)
22b75d0a
DM		 1805 || h->root.type == bfd_link_hash_defweak
1806 || !h->def_regular))))
0e1862bb 1807 || (!bfd_link_pic (info)
22b75d0a
DM		 1808 && (sec->flags & SEC_ALLOC) != 0
1809 && h != NULL
1810 && (h->root.type == bfd_link_hash_defweak
d0c9aeb3 1811 || !h->def_regular))
0e1862bb 1812 || (!bfd_link_pic (info)
d0c9aeb3
DM		 1813 && h != NULL
1814 && h->type == STT_GNU_IFUNC))
22b75d0a
DM		 1815 {
1816 struct _bfd_sparc_elf_dyn_relocs *p;
1817 struct _bfd_sparc_elf_dyn_relocs **head;
1818
1819 /* When creating a shared object, we must copy these
1820 relocs into the output file. We create a reloc
1821 section in dynobj and make room for the reloc. */
1822 if (sreloc == NULL)
1823 {
83bac4b0
NC		 1824 sreloc = _bfd_elf_make_dynamic_reloc_section
1825 (sec, htab->elf.dynobj, htab->word_align_power,
1826 abfd, /*rela?*/ TRUE);
1827
22b75d0a 1828 if (sreloc == NULL)
83bac4b0 1829 return FALSE;
22b75d0a
DM		 1830 }
1831
1832 /* If this is a global symbol, we count the number of
1833 relocations we need for this symbol. */
1834 if (h != NULL)
1835 head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
1836 else
1837 {
1838 /* Track dynamic relocs needed for local syms too.
1839 We really need local syms available to do this
1840 easily. Oh well. */
22b75d0a 1841 asection *s;
6edfbbad 1842 void *vpp;
22b75d0a 1843
d0c9aeb3 1844 BFD_ASSERT (isym != NULL);
87d72d41
AM		 1845 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1846 if (s == NULL)
1847 s = sec;
1848
6edfbbad
DJ		 1849 vpp = &elf_section_data (s)->local_dynrel;
1850 head = (struct _bfd_sparc_elf_dyn_relocs **) vpp;
22b75d0a
DM		 1851 }
1852
1853 p = *head;
1854 if (p == NULL || p->sec != sec)
1855 {
1856 bfd_size_type amt = sizeof *p;
1857 p = ((struct _bfd_sparc_elf_dyn_relocs *)
1858 bfd_alloc (htab->elf.dynobj, amt));
1859 if (p == NULL)
1860 return FALSE;
1861 p->next = *head;
1862 *head = p;
1863 p->sec = sec;
1864 p->count = 0;
1865 p->pc_count = 0;
1866 }
1867
1868 p->count += 1;
1869 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1870 p->pc_count += 1;
1871 }
1872
1873 break;
1874
1875 case R_SPARC_GNU_VTINHERIT:
1876 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1877 return FALSE;
1878 break;
1879
1880 case R_SPARC_GNU_VTENTRY:
d17e0c6e
JB		 1881 BFD_ASSERT (h != NULL);
1882 if (h != NULL
1883 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
22b75d0a
DM		 1884 return FALSE;
1885 break;
1886
1887 case R_SPARC_REGISTER:
1888 /* Nothing to do. */
1889 break;
1890
1891 default:
1892 break;
1893 }
1894 }
1895
1896 return TRUE;
1897}
1898\f
1899asection *
1900_bfd_sparc_elf_gc_mark_hook (asection *sec,
1901 struct bfd_link_info *info,
1902 Elf_Internal_Rela *rel,
1903 struct elf_link_hash_entry *h,
1904 Elf_Internal_Sym *sym)
1905{
1906 if (h != NULL)
07adf181 1907 switch (SPARC_ELF_R_TYPE (rel->r_info))
22b75d0a
DM		 1908 {
1909 case R_SPARC_GNU_VTINHERIT:
1910 case R_SPARC_GNU_VTENTRY:
07adf181 1911 return NULL;
22b75d0a 1912 }
22b75d0a 1913
b45b6908 1914 /* FIXME: The test here, in check_relocs and in relocate_section
0e1862bb
L		 1915 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1916 if (bfd_link_pic (info))
b45b6908
AM		 1917 {
1918 switch (SPARC_ELF_R_TYPE (rel->r_info))
1919 {
1920 case R_SPARC_TLS_GD_CALL:
1921 case R_SPARC_TLS_LDM_CALL:
1922 /* This reloc implicitly references __tls_get_addr. We know
1923 another reloc will reference the same symbol as the one
1924 on this reloc, so the real symbol and section will be
1925 gc marked when processing the other reloc. That lets
1926 us handle __tls_get_addr here. */
1927 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1928 FALSE, FALSE, TRUE);
1929 BFD_ASSERT (h != NULL);
1930 h->mark = 1;
60d67dc8
AM		 1931 if (h->is_weakalias)
1932 weakdef (h)->mark = 1;
b45b6908
AM		 1933 sym = NULL;
1934 }
1935 }
1936
07adf181 1937 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
22b75d0a
DM		 1938}
1939
abd242a9
DM		 1940static Elf_Internal_Rela *
1941sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
1942 Elf_Internal_Rela *relend,
1943 bfd_vma offset)
1944{
1945 while (rel < relend)
1946 {
1947 if (rel->r_offset == offset)
1948 return rel;
1949 rel++;
1950 }
1951 return NULL;
1952}
1953
bb1dd176
QZ		 1954/* Remove undefined weak symbol from the dynamic symbol table if it
1955 is resolved to 0. */
1956
1957bfd_boolean
1958_bfd_sparc_elf_fixup_symbol (struct bfd_link_info *info,
1959 struct elf_link_hash_entry *h)
1960{
1961 if (h->dynindx != -1
1962 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
1963 _bfd_sparc_elf_hash_entry (h)))
1964 {
1965 h->dynindx = -1;
1966 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1967 h->dynstr_index);
1968 }
1969 return TRUE;
1970}
1971
63c1f59d
AM		 1972/* Find dynamic relocs for H that apply to read-only sections. */
1973
1974static asection *
1975readonly_dynrelocs (struct elf_link_hash_entry *h)
1976{
1977 struct _bfd_sparc_elf_dyn_relocs *p;
1978
1979 for (p = _bfd_sparc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
1980 {
1981 asection *s = p->sec->output_section;
1982
1983 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1984 return p->sec;
1985 }
1986 return NULL;
1987}
1988
22b75d0a
DM		 1989/* Adjust a symbol defined by a dynamic object and referenced by a
1990 regular object. The current definition is in some section of the
1991 dynamic object, but we're not including those sections. We have to
1992 change the definition to something the rest of the link can
1993 understand. */
1994
1995bfd_boolean
1996_bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1997 struct elf_link_hash_entry *h)
1998{
1999 struct _bfd_sparc_elf_link_hash_table *htab;
2000 struct _bfd_sparc_elf_link_hash_entry * eh;
2001 struct _bfd_sparc_elf_dyn_relocs *p;
5474d94f 2002 asection *s, *srel;
22b75d0a
DM		 2003
2004 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2005 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 2006
2007 /* Make sure we know what is going on here. */
2008 BFD_ASSERT (htab->elf.dynobj != NULL
2009 && (h->needs_plt
d0c9aeb3 2010 || h->type == STT_GNU_IFUNC
60d67dc8 2011 || h->is_weakalias
22b75d0a
DM		 2012 || (h->def_dynamic
2013 && h->ref_regular
2014 && !h->def_regular)));
2015
2016 /* If this is a function, put it in the procedure linkage table. We
2017 will fill in the contents of the procedure linkage table later
2018 (although we could actually do it here). The STT_NOTYPE
2019 condition is a hack specifically for the Oracle libraries
2020 delivered for Solaris; for some inexplicable reason, they define
2021 some of their functions as STT_NOTYPE when they really should be
2022 STT_FUNC. */
2023 if (h->type == STT_FUNC
d0c9aeb3 2024 || h->type == STT_GNU_IFUNC
22b75d0a
DM		 2025 || h->needs_plt
2026 || (h->type == STT_NOTYPE
2027 && (h->root.type == bfd_link_hash_defined
2028 || h->root.type == bfd_link_hash_defweak)
2029 && (h->root.u.def.section->flags & SEC_CODE) != 0))
2030 {
2031 if (h->plt.refcount <= 0
d0c9aeb3
DM		 2032 || (h->type != STT_GNU_IFUNC
2033 && (SYMBOL_CALLS_LOCAL (info, h)
2034 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2035 && h->root.type == bfd_link_hash_undefweak))))
22b75d0a
DM		 2036 {
2037 /* This case can occur if we saw a WPLT30 reloc in an input
2038 file, but the symbol was never referred to by a dynamic
2039 object, or if all references were garbage collected. In
2040 such a case, we don't actually need to build a procedure
2041 linkage table, and we can just do a WDISP30 reloc instead. */
2042 h->plt.offset = (bfd_vma) -1;
2043 h->needs_plt = 0;
2044 }
2045
2046 return TRUE;
2047 }
2048 else
2049 h->plt.offset = (bfd_vma) -1;
2050
2051 /* If this is a weak symbol, and there is a real definition, the
2052 processor independent code will have arranged for us to see the
2053 real definition first, and we can just use the same value. */
60d67dc8 2054 if (h->is_weakalias)
22b75d0a 2055 {
60d67dc8
AM		 2056 struct elf_link_hash_entry *def = weakdef (h);
2057 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2058 h->root.u.def.section = def->root.u.def.section;
2059 h->root.u.def.value = def->root.u.def.value;
22b75d0a
DM		 2060 return TRUE;
2061 }
2062
2063 /* This is a reference to a symbol defined by a dynamic object which
2064 is not a function. */
2065
2066 /* If we are creating a shared library, we must presume that the
2067 only references to the symbol are via the global offset table.
2068 For such cases we need not do anything here; the relocations will
2069 be handled correctly by relocate_section. */
0e1862bb 2070 if (bfd_link_pic (info))
22b75d0a
DM		 2071 return TRUE;
2072
2073 /* If there are no references to this symbol that do not use the
2074 GOT, we don't need to generate a copy reloc. */
2075 if (!h->non_got_ref)
2076 return TRUE;
2077
72fbc6e5
DM		 2078 /* If -z nocopyreloc was given, we won't generate them either. */
2079 if (info->nocopyreloc)
2080 {
2081 h->non_got_ref = 0;
2082 return TRUE;
2083 }
2084
22b75d0a
DM		 2085 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2086 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2087 {
2088 s = p->sec->output_section;
2089 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2090 break;
2091 }
2092
2093 /* If we didn't find any dynamic relocs in read-only sections, then
2094 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2095 if (p == NULL)
2096 {
2097 h->non_got_ref = 0;
2098 return TRUE;
2099 }
2100
2101 /* We must allocate the symbol in our .dynbss section, which will
2102 become part of the .bss section of the executable. There will be
2103 an entry for this symbol in the .dynsym section. The dynamic
2104 object will contain position independent code, so all references
2105 from the dynamic object to this symbol will go through the global
2106 offset table. The dynamic linker will use the .dynsym entry to
2107 determine the address it must put in the global offset table, so
2108 both the dynamic object and the regular object will refer to the
2109 same memory location for the variable. */
2110
2111 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2112 to copy the initial value out of the dynamic object and into the
2113 runtime process image. We need to remember the offset into the
2114 .rel.bss section we are going to use. */
5474d94f
AM		 2115 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2116 {
2117 s = htab->elf.sdynrelro;
2118 srel = htab->elf.sreldynrelro;
2119 }
2120 else
2121 {
2122 s = htab->elf.sdynbss;
2123 srel = htab->elf.srelbss;
2124 }
1d7e9d18 2125 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
22b75d0a 2126 {
5474d94f 2127 srel->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2128 h->needs_copy = 1;
2129 }
2130
6cabe1ea 2131 return _bfd_elf_adjust_dynamic_copy (info, h, s);
22b75d0a
DM		 2132}
2133
2134/* Allocate space in .plt, .got and associated reloc sections for
2135 dynamic relocs. */
2136
2137static bfd_boolean
2c3fc389 2138allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
22b75d0a
DM		 2139{
2140 struct bfd_link_info *info;
2141 struct _bfd_sparc_elf_link_hash_table *htab;
2142 struct _bfd_sparc_elf_link_hash_entry *eh;
2143 struct _bfd_sparc_elf_dyn_relocs *p;
bb1dd176 2144 bfd_boolean resolved_to_zero;
22b75d0a
DM		 2145
2146 if (h->root.type == bfd_link_hash_indirect)
2147 return TRUE;
2148
22b75d0a
DM		 2149 info = (struct bfd_link_info *) inf;
2150 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2151 BFD_ASSERT (htab != NULL);
22b75d0a 2152
bb1dd176
QZ		 2153 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2154 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
2155
d0c9aeb3
DM		 2156 if ((htab->elf.dynamic_sections_created
2157 && h->plt.refcount > 0)
2158 || (h->type == STT_GNU_IFUNC
b48ca1d4
DM		 2159 && h->def_regular
2160 && h->ref_regular))
22b75d0a
DM		 2161 {
2162 /* Make sure this symbol is output as a dynamic symbol.
2163 Undefined weak syms won't yet be marked as dynamic. */
2164 if (h->dynindx == -1
bb1dd176 2165 && !h->forced_local
ec1acaba
EB		 2166 && !resolved_to_zero
2167 && h->root.type == bfd_link_hash_undefweak)
22b75d0a
DM		 2168 {
2169 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2170 return FALSE;
2171 }
2172
0e1862bb 2173 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
b48ca1d4
DM		 2174 || (h->type == STT_GNU_IFUNC
2175 && h->def_regular))
22b75d0a 2176 {
72fbc6e5 2177 asection *s = htab->elf.splt;
22b75d0a 2178
d0c9aeb3
DM		 2179 if (s == NULL)
2180 s = htab->elf.iplt;
2181
910600e9 2182 /* Allocate room for the header. */
22b75d0a 2183 if (s->size == 0)
910600e9
RS		 2184 {
2185 s->size = htab->plt_header_size;
2186
2187 /* Allocate space for the .rela.plt.unloaded relocations. */
0e1862bb 2188 if (htab->is_vxworks && !bfd_link_pic (info))
910600e9
RS		 2189 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2190 }
22b75d0a
DM		 2191
2192 /* The procedure linkage table size is bounded by the magnitude
2193 of the offset we can describe in the entry. */
2194 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
e8be8da4 2195 (((bfd_vma)1 << 31) << 1) : 0x400000))
22b75d0a
DM		 2196 {
2197 bfd_set_error (bfd_error_bad_value);
2198 return FALSE;
2199 }
2200
2201 if (SPARC_ELF_WORD_BYTES(htab) == 8
2202 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2203 {
2204 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2205
2206
2207 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2208
2209 h->plt.offset = (s->size - (off * 8));
2210 }
2211 else
2212 h->plt.offset = s->size;
2213
2214 /* If this symbol is not defined in a regular file, and we are
2215 not generating a shared library, then set the symbol to this
2216 location in the .plt. This is required to make function
2217 pointers compare as equal between the normal executable and
2218 the shared library. */
0e1862bb 2219 if (! bfd_link_pic (info)
22b75d0a
DM		 2220 && !h->def_regular)
2221 {
2222 h->root.u.def.section = s;
2223 h->root.u.def.value = h->plt.offset;
2224 }
2225
2226 /* Make room for this entry. */
910600e9 2227 s->size += htab->plt_entry_size;
22b75d0a 2228
bb1dd176
QZ		 2229 /* There should be no PLT relocations against resolved undefined
2230 weak symbols in the executable. */
2231 if (!resolved_to_zero)
2232 {
2233 /* We also need to make an entry in the .rela.plt section. */
2234 if (s == htab->elf.splt)
2235 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
2236 else
2237 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
2238 }
910600e9
RS		 2239
2240 if (htab->is_vxworks)
2241 {
2242 /* Allocate space for the .got.plt entry. */
72fbc6e5 2243 htab->elf.sgotplt->size += 4;
910600e9
RS		 2244
2245 /* ...and for the .rela.plt.unloaded relocations. */
0e1862bb 2246 if (!bfd_link_pic (info))
910600e9
RS		 2247 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2248 }
22b75d0a
DM		 2249 }
2250 else
2251 {
2252 h->plt.offset = (bfd_vma) -1;
2253 h->needs_plt = 0;
2254 }
2255 }
2256 else
2257 {
2258 h->plt.offset = (bfd_vma) -1;
2259 h->needs_plt = 0;
2260 }
2261
2262 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2263 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2264 if (h->got.refcount > 0
0fb7012e 2265 && bfd_link_executable (info)
22b75d0a
DM		 2266 && h->dynindx == -1
2267 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2268 h->got.offset = (bfd_vma) -1;
2269 else if (h->got.refcount > 0)
2270 {
2271 asection *s;
2272 bfd_boolean dyn;
2273 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2274
2275 /* Make sure this symbol is output as a dynamic symbol.
2276 Undefined weak syms won't yet be marked as dynamic. */
2277 if (h->dynindx == -1
bb1dd176 2278 && !h->forced_local
ec1acaba
EB		 2279 && !resolved_to_zero
2280 && h->root.type == bfd_link_hash_undefweak)
22b75d0a
DM		 2281 {
2282 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2283 return FALSE;
2284 }
2285
72fbc6e5 2286 s = htab->elf.sgot;
22b75d0a
DM		 2287 h->got.offset = s->size;
2288 s->size += SPARC_ELF_WORD_BYTES (htab);
2289 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2290 if (tls_type == GOT_TLS_GD)
2291 s->size += SPARC_ELF_WORD_BYTES (htab);
2292 dyn = htab->elf.dynamic_sections_created;
2293 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2294 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
bb1dd176
QZ		 2295 global. No dynamic relocations are needed against resolved
2296 undefined weak symbols in an executable. */
22b75d0a 2297 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
d0c9aeb3
DM		 2298 || tls_type == GOT_TLS_IE
2299 || h->type == STT_GNU_IFUNC)
72fbc6e5 2300 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a 2301 else if (tls_type == GOT_TLS_GD)
72fbc6e5 2302 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
bb1dd176
QZ		 2303 else if (((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2304 && !resolved_to_zero)
2305 || h->root.type != bfd_link_hash_undefweak)
2306 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2307 bfd_link_pic (info),
2308 h))
72fbc6e5 2309 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2310 }
2311 else
2312 h->got.offset = (bfd_vma) -1;
2313
22b75d0a
DM		 2314 if (eh->dyn_relocs == NULL)
2315 return TRUE;
2316
2317 /* In the shared -Bsymbolic case, discard space allocated for
2318 dynamic pc-relative relocs against symbols which turn out to be
2319 defined in regular objects. For the normal shared case, discard
2320 space for pc-relative relocs that have become local due to symbol
2321 visibility changes. */
2322
0e1862bb 2323 if (bfd_link_pic (info))
22b75d0a 2324 {
72fbc6e5 2325 if (SYMBOL_CALLS_LOCAL (info, h))
22b75d0a
DM		 2326 {
2327 struct _bfd_sparc_elf_dyn_relocs **pp;
2328
2329 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2330 {
2331 p->count -= p->pc_count;
2332 p->pc_count = 0;
2333 if (p->count == 0)
2334 *pp = p->next;
2335 else
2336 pp = &p->next;
2337 }
2338 }
22d606e9 2339
3348747a
NS		 2340 if (htab->is_vxworks)
2341 {
2342 struct _bfd_sparc_elf_dyn_relocs **pp;
2343
2344 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2345 {
2346 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2347 *pp = p->next;
2348 else
2349 pp = &p->next;
2350 }
2351 }
2352
22d606e9 2353 /* Also discard relocs on undefined weak syms with non-default
bb1dd176 2354 visibility or in PIE. */
22d606e9
AM		 2355 if (eh->dyn_relocs != NULL
2356 && h->root.type == bfd_link_hash_undefweak)
2357 {
bb1dd176
QZ		 2358 /* An undefined weak symbol is never
2359 bound locally in a shared library. */
2360
2361 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2362 || resolved_to_zero)
2363 {
2364 if (h->non_got_ref)
2365 {
2366 /* Keep dynamic non-GOT/non-PLT relocation so that we
2367 can branch to 0 without PLT. */
2368 struct _bfd_sparc_elf_dyn_relocs **pp;
2369
2370 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2371 if (p->pc_count == 0)
2372 *pp = p->next;
2373 else
2374 {
2375 /* Remove other relocations. */
2376 p->count = p->pc_count;
2377 pp = &p->next;
2378 }
2379
2380 if (eh->dyn_relocs != NULL)
2381 {
2382 /* Make sure undefined weak symbols are output
2383 as dynamic symbols in PIEs for dynamic non-GOT
2384 non-PLT reloations. */
2385 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2386 return FALSE;
2387 }
2388 }
2389 else
2390 eh->dyn_relocs = NULL;
2391 }
22d606e9
AM		 2392
2393 /* Make sure undefined weak symbols are output as a dynamic
2394 symbol in PIEs. */
2395 else if (h->dynindx == -1
2396 && !h->forced_local)
2397 {
2398 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2399 return FALSE;
2400 }
2401 }
22b75d0a
DM		 2402 }
2403 else
2404 {
2405 /* For the non-shared case, discard space for relocs against
2406 symbols which turn out to need copy relocs or are not
2407 dynamic. */
2408
bb1dd176
QZ		 2409 if ((!h->non_got_ref
2410 || (h->root.type == bfd_link_hash_undefweak
2411 && !resolved_to_zero))
22b75d0a
DM		 2412 && ((h->def_dynamic
2413 && !h->def_regular)
2414 || (htab->elf.dynamic_sections_created
2415 && (h->root.type == bfd_link_hash_undefweak
2416 || h->root.type == bfd_link_hash_undefined))))
2417 {
2418 /* Make sure this symbol is output as a dynamic symbol.
2419 Undefined weak syms won't yet be marked as dynamic. */
2420 if (h->dynindx == -1
bb1dd176 2421 && !h->forced_local
ec1acaba
EB		 2422 && !resolved_to_zero
2423 && h->root.type == bfd_link_hash_undefweak)
22b75d0a
DM		 2424 {
2425 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2426 return FALSE;
2427 }
2428
2429 /* If that succeeded, we know we'll be keeping all the
2430 relocs. */
2431 if (h->dynindx != -1)
2432 goto keep;
2433 }
2434
2435 eh->dyn_relocs = NULL;
2436
2437 keep: ;
2438 }
2439
2440 /* Finally, allocate space. */
2441 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2442 {
2443 asection *sreloc = elf_section_data (p->sec)->sreloc;
2444 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2445 }
2446
2447 return TRUE;
2448}
2449
d0c9aeb3
DM		 2450/* Allocate space in .plt, .got and associated reloc sections for
2451 local dynamic relocs. */
2452
2453static bfd_boolean
2454allocate_local_dynrelocs (void **slot, void *inf)
2455{
2456 struct elf_link_hash_entry *h
2457 = (struct elf_link_hash_entry *) *slot;
2458
2459 if (h->type != STT_GNU_IFUNC
2460 || !h->def_regular
2461 || !h->ref_regular
2462 || !h->forced_local
2463 || h->root.type != bfd_link_hash_defined)
2464 abort ();
2465
2466 return allocate_dynrelocs (h, inf);
2467}
2468
63c1f59d
AM		 2469/* Set DF_TEXTREL if we find any dynamic relocs that apply to
2470 read-only sections. */
22b75d0a
DM		 2471
2472static bfd_boolean
63c1f59d 2473maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
22b75d0a 2474{
63c1f59d 2475 asection *sec;
22b75d0a 2476
63c1f59d
AM		 2477 if (h->root.type == bfd_link_hash_indirect)
2478 return TRUE;
22b75d0a 2479
63c1f59d
AM		 2480 sec = readonly_dynrelocs (h);
2481 if (sec != NULL)
2482 {
2483 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
22b75d0a 2484
63c1f59d
AM		 2485 info->flags |= DF_TEXTREL;
2486 info->callbacks->minfo
2487 (_("%B: dynamic relocation against `%T' in read-only section `%A'\n"),
2488 sec->owner, h->root.root.string, sec);
f0f07ad1 2489
63c1f59d
AM		 2490 /* Not an error, just cut short the traversal. */
2491 return FALSE;
22b75d0a
DM		 2492 }
2493 return TRUE;
2494}
2495
2496/* Return true if the dynamic symbol for a given section should be
2497 omitted when creating a shared library. */
2498
2499bfd_boolean
2500_bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2501 struct bfd_link_info *info,
2502 asection *p)
2503{
2504 /* We keep the .got section symbol so that explicit relocations
2505 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2506 can be turned into relocations against the .got symbol. */
2507 if (strcmp (p->name, ".got") == 0)
2508 return FALSE;
2509
2510 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2511}
2512
2513/* Set the sizes of the dynamic sections. */
2514
2515bfd_boolean
2516_bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2517 struct bfd_link_info *info)
2518{
2519 struct _bfd_sparc_elf_link_hash_table *htab;
2520 bfd *dynobj;
2521 asection *s;
2522 bfd *ibfd;
2523
2524 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2525 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 2526 dynobj = htab->elf.dynobj;
2527 BFD_ASSERT (dynobj != NULL);
2528
2529 if (elf_hash_table (info)->dynamic_sections_created)
2530 {
2531 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2532 if (bfd_link_executable (info) && !info->nointerp)
bb1dd176
QZ		 2533 {
2534 s = bfd_get_linker_section (dynobj, ".interp");
2535 BFD_ASSERT (s != NULL);
2536 s->size = htab->dynamic_interpreter_size;
2537 s->contents = (unsigned char *) htab->dynamic_interpreter;
2538 htab->interp = s;
2539 }
22b75d0a
DM		 2540 }
2541
2542 /* Set up .got offsets for local syms, and space for local dynamic
2543 relocs. */
c72f2fb2 2544 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
22b75d0a
DM		 2545 {
2546 bfd_signed_vma *local_got;
2547 bfd_signed_vma *end_local_got;
2548 char *local_tls_type;
2549 bfd_size_type locsymcount;
2550 Elf_Internal_Shdr *symtab_hdr;
2551 asection *srel;
2552
0ffa91dd 2553 if (! is_sparc_elf (ibfd))
22b75d0a
DM		 2554 continue;
2555
2556 for (s = ibfd->sections; s != NULL; s = s->next)
2557 {
2558 struct _bfd_sparc_elf_dyn_relocs *p;
2559
6edfbbad 2560 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
22b75d0a
DM		 2561 {
2562 if (!bfd_is_abs_section (p->sec)
2563 && bfd_is_abs_section (p->sec->output_section))
2564 {
2565 /* Input section has been discarded, either because
2566 it is a copy of a linkonce section or due to
2567 linker script /DISCARD/, so we'll be discarding
2568 the relocs too. */
2569 }
3348747a
NS		 2570 else if (htab->is_vxworks
2571 && strcmp (p->sec->output_section->name,
2572 ".tls_vars") == 0)
2573 {
2574 /* Relocations in vxworks .tls_vars sections are
2575 handled specially by the loader. */
2576 }
22b75d0a
DM		 2577 else if (p->count != 0)
2578 {
2579 srel = elf_section_data (p->sec)->sreloc;
d0c9aeb3
DM		 2580 if (!htab->elf.dynamic_sections_created)
2581 srel = htab->elf.irelplt;
22b75d0a
DM		 2582 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2583 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
f0f07ad1
L		 2584 {
2585 info->flags |= DF_TEXTREL;
2586 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2587 p->sec->owner, p->sec);
2588 }
22b75d0a
DM		 2589 }
2590 }
2591 }
2592
2593 local_got = elf_local_got_refcounts (ibfd);
2594 if (!local_got)
2595 continue;
2596
0ffa91dd 2597 symtab_hdr = &elf_symtab_hdr (ibfd);
22b75d0a
DM		 2598 locsymcount = symtab_hdr->sh_info;
2599 end_local_got = local_got + locsymcount;
2600 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
72fbc6e5
DM		 2601 s = htab->elf.sgot;
2602 srel = htab->elf.srelgot;
22b75d0a
DM		 2603 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2604 {
2605 if (*local_got > 0)
2606 {
2607 *local_got = s->size;
2608 s->size += SPARC_ELF_WORD_BYTES (htab);
2609 if (*local_tls_type == GOT_TLS_GD)
2610 s->size += SPARC_ELF_WORD_BYTES (htab);
0e1862bb 2611 if (bfd_link_pic (info)
22b75d0a
DM		 2612 || *local_tls_type == GOT_TLS_GD
2613 || *local_tls_type == GOT_TLS_IE)
2614 srel->size += SPARC_ELF_RELA_BYTES (htab);
2615 }
2616 else
2617 *local_got = (bfd_vma) -1;
2618 }
2619 }
2620
2621 if (htab->tls_ldm_got.refcount > 0)
2622 {
2623 /* Allocate 2 got entries and 1 dynamic reloc for
2624 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
72fbc6e5
DM		 2625 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2626 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2627 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2628 }
2629 else
2630 htab->tls_ldm_got.offset = -1;
2631
2632 /* Allocate global sym .plt and .got entries, and space for global
2633 sym dynamic relocs. */
2c3fc389 2634 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
22b75d0a 2635
d0c9aeb3
DM		 2636 /* Allocate .plt and .got entries, and space for local symbols. */
2637 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2638
0fc9967d
JM		 2639 if (! ABI_64_P (output_bfd)
2640 && !htab->is_vxworks
22b75d0a
DM		 2641 && elf_hash_table (info)->dynamic_sections_created)
2642 {
0fc9967d
JM		 2643 /* Make space for the trailing nop in .plt. */
2644 if (htab->elf.splt->size > 0)
2645 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
22b75d0a
DM		 2646
2647 /* If the .got section is more than 0x1000 bytes, we add
2648 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
0fc9967d
JM		 2649 bit relocations have a greater chance of working.
2650
2651 FIXME: Make this optimization work for 64-bit too. */
72fbc6e5 2652 if (htab->elf.sgot->size >= 0x1000
22b75d0a
DM		 2653 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2654 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2655 }
2656
2657 /* The check_relocs and adjust_dynamic_symbol entry points have
2658 determined the sizes of the various dynamic sections. Allocate
2659 memory for them. */
2660 for (s = dynobj->sections; s != NULL; s = s->next)
2661 {
22b75d0a
DM		 2662 if ((s->flags & SEC_LINKER_CREATED) == 0)
2663 continue;
2664
72fbc6e5
DM		 2665 if (s == htab->elf.splt
2666 || s == htab->elf.sgot
9d19e4fd 2667 || s == htab->elf.sdynbss
5474d94f 2668 || s == htab->elf.sdynrelro
d0c9aeb3 2669 || s == htab->elf.iplt
72fbc6e5 2670 || s == htab->elf.sgotplt)
22b75d0a 2671 {
c456f082
AM		 2672 /* Strip this section if we don't need it; see the
2673 comment below. */
2674 }
0112cd26 2675 else if (CONST_STRNEQ (s->name, ".rela"))
c456f082
AM		 2676 {
2677 if (s->size != 0)
22b75d0a
DM		 2678 {
2679 /* We use the reloc_count field as a counter if we need
2680 to copy relocs into the output file. */
2681 s->reloc_count = 0;
2682 }
2683 }
c456f082 2684 else
22b75d0a 2685 {
c456f082 2686 /* It's not one of our sections. */
22b75d0a
DM		 2687 continue;
2688 }
2689
c456f082 2690 if (s->size == 0)
22b75d0a 2691 {
c456f082
AM		 2692 /* If we don't need this section, strip it from the
2693 output file. This is mostly to handle .rela.bss and
2694 .rela.plt. We must create both sections in
2695 create_dynamic_sections, because they must be created
2696 before the linker maps input sections to output
2697 sections. The linker does that before
2698 adjust_dynamic_symbol is called, and it is that
2699 function which decides whether anything needs to go
2700 into these sections. */
8423293d 2701 s->flags |= SEC_EXCLUDE;
22b75d0a
DM		 2702 continue;
2703 }
2704
c456f082
AM		 2705 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2706 continue;
2707
22b75d0a
DM		 2708 /* Allocate memory for the section contents. Zero the memory
2709 for the benefit of .rela.plt, which has 4 unused entries
2710 at the beginning, and we don't want garbage. */
2711 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
c456f082 2712 if (s->contents == NULL)
22b75d0a
DM		 2713 return FALSE;
2714 }
2715
2716 if (elf_hash_table (info)->dynamic_sections_created)
2717 {
2718 /* Add some entries to the .dynamic section. We fill in the
2719 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2720 must add the entries now so that we get the correct size for
2721 the .dynamic section. The DT_DEBUG entry is filled in by the
2722 dynamic linker and used by the debugger. */
2723#define add_dynamic_entry(TAG, VAL) \
2724 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2725
0e1862bb 2726 if (bfd_link_executable (info))
22b75d0a
DM		 2727 {
2728 if (!add_dynamic_entry (DT_DEBUG, 0))
2729 return FALSE;
2730 }
2731
72fbc6e5 2732 if (htab->elf.srelplt->size != 0)
22b75d0a
DM		 2733 {
2734 if (!add_dynamic_entry (DT_PLTGOT, 0)
2735 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2736 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2737 || !add_dynamic_entry (DT_JMPREL, 0))
2738 return FALSE;
2739 }
2740
2741 if (!add_dynamic_entry (DT_RELA, 0)
2742 || !add_dynamic_entry (DT_RELASZ, 0)
2743 || !add_dynamic_entry (DT_RELAENT,
2744 SPARC_ELF_RELA_BYTES (htab)))
2745 return FALSE;
2746
2747 /* If any dynamic relocs apply to a read-only section,
2748 then we need a DT_TEXTREL entry. */
2749 if ((info->flags & DF_TEXTREL) == 0)
63c1f59d 2750 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
22b75d0a
DM		 2751
2752 if (info->flags & DF_TEXTREL)
2753 {
2754 if (!add_dynamic_entry (DT_TEXTREL, 0))
2755 return FALSE;
2756 }
2757
2758 if (ABI_64_P (output_bfd))
2759 {
2760 int reg;
2761 struct _bfd_sparc_elf_app_reg * app_regs;
2762 struct elf_strtab_hash *dynstr;
2763 struct elf_link_hash_table *eht = elf_hash_table (info);
2764
2765 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2766 entries if needed. */
2767 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2768 dynstr = eht->dynstr;
2769
2770 for (reg = 0; reg < 4; reg++)
2771 if (app_regs [reg].name != NULL)
2772 {
2773 struct elf_link_local_dynamic_entry *entry, *e;
2774
2775 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2776 return FALSE;
2777
2778 entry = (struct elf_link_local_dynamic_entry *)
2779 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2780 if (entry == NULL)
2781 return FALSE;
2782
2783 /* We cheat here a little bit: the symbol will not be local, so we
2784 put it at the end of the dynlocal linked list. We will fix it
2785 later on, as we have to fix other fields anyway. */
2786 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2787 entry->isym.st_size = 0;
2788 if (*app_regs [reg].name != '\0')
2789 entry->isym.st_name
2790 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2791 else
2792 entry->isym.st_name = 0;
2793 entry->isym.st_other = 0;
2794 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2795 STT_REGISTER);
2796 entry->isym.st_shndx = app_regs [reg].shndx;
35fc36a8 2797 entry->isym.st_target_internal = 0;
22b75d0a
DM		 2798 entry->next = NULL;
2799 entry->input_bfd = output_bfd;
2800 entry->input_indx = -1;
2801
2802 if (eht->dynlocal == NULL)
2803 eht->dynlocal = entry;
2804 else
2805 {
2806 for (e = eht->dynlocal; e->next; e = e->next)
2807 ;
2808 e->next = entry;
2809 }
2810 eht->dynsymcount++;
2811 }
2812 }
7a2b07ff
NS		 2813 if (htab->is_vxworks
2814 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2815 return FALSE;
22b75d0a
DM		 2816 }
2817#undef add_dynamic_entry
2818
2819 return TRUE;
2820}
2821\f
2822bfd_boolean
2823_bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2824{
f592407e
AM		 2825 if (!sec->used_by_bfd)
2826 {
2827 struct _bfd_sparc_elf_section_data *sdata;
2828 bfd_size_type amt = sizeof (*sdata);
22b75d0a 2829
f592407e
AM		 2830 sdata = bfd_zalloc (abfd, amt);
2831 if (sdata == NULL)
2832 return FALSE;
2833 sec->used_by_bfd = sdata;
2834 }
22b75d0a
DM		 2835
2836 return _bfd_elf_new_section_hook (abfd, sec);
2837}
2838
2839bfd_boolean
2840_bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2841 struct bfd_section *section,
2842 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2843 bfd_boolean *again)
2844{
0e1862bb 2845 if (bfd_link_relocatable (link_info))
c8a1f254
NS		 2846 (*link_info->callbacks->einfo)
2847 (_("%P%F: --relax and -r may not be used together\n"));
2848
22b75d0a
DM		 2849 *again = FALSE;
2850 sec_do_relax (section) = 1;
2851 return TRUE;
2852}
2853\f
2854/* Return the base VMA address which should be subtracted from real addresses
2855 when resolving @dtpoff relocation.
2856 This is PT_TLS segment p_vaddr. */
2857
2858static bfd_vma
2859dtpoff_base (struct bfd_link_info *info)
2860{
2861 /* If tls_sec is NULL, we should have signalled an error already. */
2862 if (elf_hash_table (info)->tls_sec == NULL)
2863 return 0;
2864 return elf_hash_table (info)->tls_sec->vma;
2865}
2866
2867/* Return the relocation value for @tpoff relocation
2868 if STT_TLS virtual address is ADDRESS. */
2869
2870static bfd_vma
2871tpoff (struct bfd_link_info *info, bfd_vma address)
2872{
2873 struct elf_link_hash_table *htab = elf_hash_table (info);
1360ba76
RO		 2874 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
2875 bfd_vma static_tls_size;
22b75d0a
DM		 2876
2877 /* If tls_sec is NULL, we should have signalled an error already. */
2878 if (htab->tls_sec == NULL)
2879 return 0;
1360ba76
RO		 2880
2881 /* Consider special static TLS alignment requirements. */
2882 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
2883 return address - static_tls_size - htab->tls_sec->vma;
22b75d0a
DM		 2884}
2885
00c50991
DM		 2886/* Return the relocation value for a %gdop relocation. */
2887
2888static bfd_vma
2889gdopoff (struct bfd_link_info *info, bfd_vma address)
2890{
2891 struct elf_link_hash_table *htab = elf_hash_table (info);
2892 bfd_vma got_base;
2893
2894 got_base = (htab->hgot->root.u.def.value
2895 + htab->hgot->root.u.def.section->output_offset
2896 + htab->hgot->root.u.def.section->output_section->vma);
2897
2898 return address - got_base;
2899}
2900
5b86074c
AM		 2901/* Return whether H is local and its ADDRESS is within 4G of
2902 _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
2903 sethi, xor sequence. */
2904
2905static bfd_boolean
2906gdop_relative_offset_ok (struct bfd_link_info *info,
2907 struct elf_link_hash_entry *h,
2908 bfd_vma address ATTRIBUTE_UNUSED)
2909{
2910 if (!SYMBOL_REFERENCES_LOCAL (info, h))
2911 return FALSE;
2912 /* If H is undefined, ADDRESS will be zero. We can't allow a
2913 relative offset to "zero" when producing PIEs or shared libs.
2914 Note that to get here with an undefined symbol it must also be
2915 hidden or internal visibility. */
2916 if (bfd_link_pic (info)
2917 && h != NULL
2918 && (h->root.type == bfd_link_hash_undefweak
2919 || h->root.type == bfd_link_hash_undefined))
2920 return FALSE;
2921#ifdef BFD64
2922 return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
2923#else
2924 return TRUE;
2925#endif
2926}
2927
22b75d0a
DM		 2928/* Relocate a SPARC ELF section. */
2929
2930bfd_boolean
ab96bf03
AM		 2931_bfd_sparc_elf_relocate_section (bfd *output_bfd,
2932 struct bfd_link_info *info,
2933 bfd *input_bfd,
2934 asection *input_section,
2935 bfd_byte *contents,
2936 Elf_Internal_Rela *relocs,
2937 Elf_Internal_Sym *local_syms,
2938 asection **local_sections)
22b75d0a
DM		 2939{
2940 struct _bfd_sparc_elf_link_hash_table *htab;
2941 Elf_Internal_Shdr *symtab_hdr;
2942 struct elf_link_hash_entry **sym_hashes;
2943 bfd_vma *local_got_offsets;
2944 bfd_vma got_base;
2945 asection *sreloc;
2946 Elf_Internal_Rela *rel;
2947 Elf_Internal_Rela *relend;
2948 int num_relocs;
3348747a 2949 bfd_boolean is_vxworks_tls;
22b75d0a 2950
22b75d0a 2951 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2952 BFD_ASSERT (htab != NULL);
0ffa91dd 2953 symtab_hdr = &elf_symtab_hdr (input_bfd);
22b75d0a
DM		 2954 sym_hashes = elf_sym_hashes (input_bfd);
2955 local_got_offsets = elf_local_got_offsets (input_bfd);
2956
2957 if (elf_hash_table (info)->hgot == NULL)
2958 got_base = 0;
2959 else
2960 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2961
2962 sreloc = elf_section_data (input_section)->sreloc;
3348747a
NS		 2963 /* We have to handle relocations in vxworks .tls_vars sections
2964 specially, because the dynamic loader is 'weird'. */
0e1862bb 2965 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3348747a
NS		 2966 && !strcmp (input_section->output_section->name,
2967 ".tls_vars"));
22b75d0a
DM		 2968
2969 rel = relocs;
2970 if (ABI_64_P (output_bfd))
d4730f92 2971 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
22b75d0a
DM		 2972 else
2973 num_relocs = input_section->reloc_count;
2974 relend = relocs + num_relocs;
2975 for (; rel < relend; rel++)
2976 {
2977 int r_type, tls_type;
2978 reloc_howto_type *howto;
2979 unsigned long r_symndx;
2980 struct elf_link_hash_entry *h;
bb1dd176 2981 struct _bfd_sparc_elf_link_hash_entry *eh;
22b75d0a
DM		 2982 Elf_Internal_Sym *sym;
2983 asection *sec;
2984 bfd_vma relocation, off;
2985 bfd_reloc_status_type r;
2986 bfd_boolean is_plt = FALSE;
2987 bfd_boolean unresolved_reloc;
bb1dd176 2988 bfd_boolean resolved_to_zero;
ec1acaba 2989 bfd_boolean relative_reloc;
22b75d0a
DM		 2990
2991 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2992 if (r_type == R_SPARC_GNU_VTINHERIT
2993 || r_type == R_SPARC_GNU_VTENTRY)
2994 continue;
2995
2996 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2997 {
2998 bfd_set_error (bfd_error_bad_value);
2999 return FALSE;
3000 }
3001 howto = _bfd_sparc_elf_howto_table + r_type;
3002
22b75d0a
DM		 3003 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
3004 h = NULL;
3005 sym = NULL;
3006 sec = NULL;
3007 unresolved_reloc = FALSE;
3008 if (r_symndx < symtab_hdr->sh_info)
3009 {
3010 sym = local_syms + r_symndx;
3011 sec = local_sections[r_symndx];
3012 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
d0c9aeb3 3013
0e1862bb 3014 if (!bfd_link_relocatable (info)
d0c9aeb3
DM		 3015 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
3016 {
3017 /* Relocate against local STT_GNU_IFUNC symbol. */
3018 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
3019 rel, FALSE);
3020 if (h == NULL)
3021 abort ();
3022
68ffbac6 3023 /* Set STT_GNU_IFUNC symbol value. */
d0c9aeb3
DM		 3024 h->root.u.def.value = sym->st_value;
3025 h->root.u.def.section = sec;
3026 }
22b75d0a
DM		 3027 }
3028 else
3029 {
62d887d4 3030 bfd_boolean warned, ignored;
22b75d0a
DM		 3031
3032 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3033 r_symndx, symtab_hdr, sym_hashes,
3034 h, sec, relocation,
62d887d4 3035 unresolved_reloc, warned, ignored);
22b75d0a
DM		 3036 if (warned)
3037 {
3038 /* To avoid generating warning messages about truncated
3039 relocations, set the relocation's address to be the same as
3040 the start of this section. */
3041 if (input_section->output_section != NULL)
3042 relocation = input_section->output_section->vma;
3043 else
3044 relocation = 0;
3045 }
3046 }
3047
dbaa2011 3048 if (sec != NULL && discarded_section (sec))
e4067dbb 3049 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 3050 rel, 1, relend, howto, 0, contents);
ab96bf03 3051
0e1862bb 3052 if (bfd_link_relocatable (info))
ab96bf03
AM		 3053 continue;
3054
d0c9aeb3
DM		 3055 if (h != NULL
3056 && h->type == STT_GNU_IFUNC
3057 && h->def_regular)
3058 {
3059 asection *plt_sec;
3060 const char *name;
3061
3062 if ((input_section->flags & SEC_ALLOC) == 0
3063 || h->plt.offset == (bfd_vma) -1)
3064 abort ();
3065
3066 plt_sec = htab->elf.splt;
3067 if (! plt_sec)
3068 plt_sec =htab->elf.iplt;
3069
3070 switch (r_type)
3071 {
00c50991
DM		 3072 case R_SPARC_GOTDATA_OP:
3073 continue;
3074
d0c9aeb3
DM		 3075 case R_SPARC_GOTDATA_OP_HIX22:
3076 case R_SPARC_GOTDATA_OP_LOX10:
00c50991
DM		 3077 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3078 ? R_SPARC_GOT22
3079 : R_SPARC_GOT10);
3080 howto = _bfd_sparc_elf_howto_table + r_type;
3081 /* Fall through. */
3082
d0c9aeb3
DM		 3083 case R_SPARC_GOT10:
3084 case R_SPARC_GOT13:
3085 case R_SPARC_GOT22:
3086 if (htab->elf.sgot == NULL)
3087 abort ();
3088 off = h->got.offset;
3089 if (off == (bfd_vma) -1)
3090 abort();
3091 relocation = htab->elf.sgot->output_offset + off - got_base;
3092 goto do_relocation;
3093
3094 case R_SPARC_WPLT30:
3095 case R_SPARC_WDISP30:
3096 relocation = (plt_sec->output_section->vma
3097 + plt_sec->output_offset + h->plt.offset);
3098 goto do_relocation;
3099
3100 case R_SPARC_32:
3101 case R_SPARC_64:
0e1862bb 3102 if (bfd_link_pic (info) && h->non_got_ref)
d0c9aeb3
DM		 3103 {
3104 Elf_Internal_Rela outrel;
3105 bfd_vma offset;
3106
3107 offset = _bfd_elf_section_offset (output_bfd, info,
3108 input_section,
3109 rel->r_offset);
3110 if (offset == (bfd_vma) -1
3111 || offset == (bfd_vma) -2)
3112 abort();
3113
3114 outrel.r_offset = (input_section->output_section->vma
3115 + input_section->output_offset
3116 + offset);
3117
3118 if (h->dynindx == -1
3119 || h->forced_local
0e1862bb 3120 || bfd_link_executable (info))
d0c9aeb3
DM		 3121 {
3122 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3123 0, R_SPARC_IRELATIVE);
3124 outrel.r_addend = relocation + rel->r_addend;
3125 }
3126 else
3127 {
3128 if (h->dynindx == -1)
3129 abort();
3130 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3131 outrel.r_addend = rel->r_addend;
3132 }
3133
3134 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3135 continue;
3136 }
3137
3138 relocation = (plt_sec->output_section->vma
3139 + plt_sec->output_offset + h->plt.offset);
3140 goto do_relocation;
3141
3142 case R_SPARC_HI22:
3143 case R_SPARC_LO10:
3144 /* We should only see such relocs in static links. */
0e1862bb 3145 if (bfd_link_pic (info))
d0c9aeb3
DM		 3146 abort();
3147 relocation = (plt_sec->output_section->vma
3148 + plt_sec->output_offset + h->plt.offset);
3149 goto do_relocation;
3150
3151 default:
3152 if (h->root.root.string)
3153 name = h->root.root.string;
3154 else
3155 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3156 NULL);
4eca0228 3157 _bfd_error_handler
695344c0 3158 /* xgettext:c-format */
d0c9aeb3
DM		 3159 (_("%B: relocation %s against STT_GNU_IFUNC "
3160 "symbol `%s' isn't handled by %s"), input_bfd,
3161 _bfd_sparc_elf_howto_table[r_type].name,
3162 name, __FUNCTION__);
3163 bfd_set_error (bfd_error_bad_value);
3164 return FALSE;
3165 }
3166 }
3167
bb1dd176
QZ		 3168 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
3169 resolved_to_zero = (eh != NULL
3170 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh));
3171
22b75d0a
DM		 3172 switch (r_type)
3173 {
739f7f82
DM		 3174 case R_SPARC_GOTDATA_OP_HIX22:
3175 case R_SPARC_GOTDATA_OP_LOX10:
5b86074c 3176 if (gdop_relative_offset_ok (info, h, relocation))
cc133f9f
JC		 3177 {
3178 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3179 ? R_SPARC_GOTDATA_HIX22
3180 : R_SPARC_GOTDATA_LOX10);
3181 howto = _bfd_sparc_elf_howto_table + r_type;
3182 }
00c50991
DM		 3183 break;
3184
3185 case R_SPARC_GOTDATA_OP:
5b86074c 3186 if (gdop_relative_offset_ok (info, h, relocation))
00c50991
DM		 3187 {
3188 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3189
3190 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3191 relocation = 0x80000000 | (insn & 0x3e07c01f);
3192 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3193 }
3194 continue;
3195 }
3196
3197 switch (r_type)
3198 {
3199 case R_SPARC_GOTDATA_HIX22:
3200 case R_SPARC_GOTDATA_LOX10:
3201 relocation = gdopoff (info, relocation);
3202 break;
739f7f82 3203
cc133f9f
JC		 3204 case R_SPARC_GOTDATA_OP_HIX22:
3205 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 3206 case R_SPARC_GOT10:
3207 case R_SPARC_GOT13:
3208 case R_SPARC_GOT22:
3209 /* Relocation is to the entry for this symbol in the global
3210 offset table. */
72fbc6e5 3211 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3212 abort ();
3213
ec1acaba 3214 relative_reloc = FALSE;
22b75d0a
DM		 3215 if (h != NULL)
3216 {
3217 bfd_boolean dyn;
3218
3219 off = h->got.offset;
3220 BFD_ASSERT (off != (bfd_vma) -1);
3221 dyn = elf_hash_table (info)->dynamic_sections_created;
3222
0e1862bb
L		 3223 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3224 bfd_link_pic (info),
3225 h)
3226 || (bfd_link_pic (info)
72fbc6e5 3227 && SYMBOL_REFERENCES_LOCAL (info, h)))
22b75d0a
DM		 3228 {
3229 /* This is actually a static link, or it is a
3230 -Bsymbolic link and the symbol is defined
3231 locally, or the symbol was forced to be local
3232 because of a version file. We must initialize
3233 this entry in the global offset table. Since the
3234 offset must always be a multiple of 8 for 64-bit
3235 and 4 for 32-bit, we use the least significant bit
3236 to record whether we have initialized it already.
3237
3238 When doing a dynamic link, we create a .rela.got
3239 relocation entry to initialize the value. This
3240 is done in the finish_dynamic_symbol routine. */
3241 if ((off & 1) != 0)
3242 off &= ~1;
3243 else
3244 {
3245 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
72fbc6e5 3246 htab->elf.sgot->contents + off);
22b75d0a 3247 h->got.offset |= 1;
ec1acaba
EB		 3248
3249 if (h->dynindx == -1
3250 && !h->forced_local
3251 && h->root.type != bfd_link_hash_undefweak
3252 && bfd_link_pic (info))
3253 {
3254 /* If this symbol isn't dynamic in PIC
3255 generate R_SPARC_RELATIVE here. */
3256 relative_reloc = TRUE;
3257 }
22b75d0a
DM		 3258 }
3259 }
3260 else
3261 unresolved_reloc = FALSE;
3262 }
3263 else
3264 {
3265 BFD_ASSERT (local_got_offsets != NULL
3266 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3267
3268 off = local_got_offsets[r_symndx];
3269
3270 /* The offset must always be a multiple of 8 on 64-bit and
3271 4 on 32-bit. We use the least significant bit to record
3272 whether we have already processed this entry. */
3273 if ((off & 1) != 0)
3274 off &= ~1;
3275 else
3276 {
0e1862bb 3277 if (bfd_link_pic (info))
22b75d0a 3278 {
ec1acaba 3279 relative_reloc = TRUE;
22b75d0a
DM		 3280 }
3281
3282 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
72fbc6e5 3283 htab->elf.sgot->contents + off);
22b75d0a
DM		 3284 local_got_offsets[r_symndx] |= 1;
3285 }
3286 }
ec1acaba
EB		 3287
3288 if (relative_reloc)
3289 {
3290 asection *s;
3291 Elf_Internal_Rela outrel;
3292
3293 /* We need to generate a R_SPARC_RELATIVE reloc
3294 for the dynamic linker. */
3295 s = htab->elf.srelgot;
3296 BFD_ASSERT (s != NULL);
3297
3298 outrel.r_offset = (htab->elf.sgot->output_section->vma
3299 + htab->elf.sgot->output_offset
3300 + off);
3301 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3302 0, R_SPARC_RELATIVE);
3303 outrel.r_addend = relocation;
3304 relocation = 0;
3305 sparc_elf_append_rela (output_bfd, s, &outrel);
3306 }
3307
72fbc6e5 3308 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3309 break;
3310
3311 case R_SPARC_PLT32:
3312 case R_SPARC_PLT64:
3313 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3314 {
3315 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3316 goto r_sparc_plt32;
3317 }
3318 /* Fall through. */
3319
3320 case R_SPARC_WPLT30:
3321 case R_SPARC_HIPLT22:
3322 case R_SPARC_LOPLT10:
3323 case R_SPARC_PCPLT32:
3324 case R_SPARC_PCPLT22:
3325 case R_SPARC_PCPLT10:
3326 r_sparc_wplt30:
3327 /* Relocation is to the entry for this symbol in the
3328 procedure linkage table. */
3329
3330 if (! ABI_64_P (output_bfd))
3331 {
3332 /* The Solaris native assembler will generate a WPLT30 reloc
3333 for a local symbol if you assemble a call from one
3334 section to another when using -K pic. We treat it as
3335 WDISP30. */
3336 if (h == NULL)
3337 break;
3338 }
68ffbac6 3339 /* PR 7027: We need similar behaviour for 64-bit binaries. */
af1fb11f
NC		 3340 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3341 break;
22b75d0a
DM		 3342 else
3343 {
3344 BFD_ASSERT (h != NULL);
3345 }
3346
72fbc6e5 3347 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
22b75d0a
DM		 3348 {
3349 /* We didn't make a PLT entry for this symbol. This
3350 happens when statically linking PIC code, or when
3351 using -Bsymbolic. */
3352 break;
3353 }
3354
72fbc6e5
DM		 3355 relocation = (htab->elf.splt->output_section->vma
3356 + htab->elf.splt->output_offset
22b75d0a
DM		 3357 + h->plt.offset);
3358 unresolved_reloc = FALSE;
3359 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3360 {
3361 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3362 is_plt = TRUE;
3363 goto r_sparc_plt32;
3364 }
3365 break;
3366
3367 case R_SPARC_PC10:
3368 case R_SPARC_PC22:
3369 case R_SPARC_PC_HH22:
3370 case R_SPARC_PC_HM10:
3371 case R_SPARC_PC_LM22:
3372 if (h != NULL
3373 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3374 break;
3375 /* Fall through. */
3376 case R_SPARC_DISP8:
3377 case R_SPARC_DISP16:
3378 case R_SPARC_DISP32:
3379 case R_SPARC_DISP64:
3380 case R_SPARC_WDISP30:
3381 case R_SPARC_WDISP22:
3382 case R_SPARC_WDISP19:
3383 case R_SPARC_WDISP16:
2615994e 3384 case R_SPARC_WDISP10:
22b75d0a
DM		 3385 case R_SPARC_8:
3386 case R_SPARC_16:
3387 case R_SPARC_32:
3388 case R_SPARC_HI22:
3389 case R_SPARC_22:
3390 case R_SPARC_13:
3391 case R_SPARC_LO10:
3392 case R_SPARC_UA16:
3393 case R_SPARC_UA32:
3394 case R_SPARC_10:
3395 case R_SPARC_11:
3396 case R_SPARC_64:
3397 case R_SPARC_OLO10:
3398 case R_SPARC_HH22:
3399 case R_SPARC_HM10:
3400 case R_SPARC_LM22:
3401 case R_SPARC_7:
3402 case R_SPARC_5:
3403 case R_SPARC_6:
3404 case R_SPARC_HIX22:
3405 case R_SPARC_LOX10:
3406 case R_SPARC_H44:
3407 case R_SPARC_M44:
3408 case R_SPARC_L44:
2615994e 3409 case R_SPARC_H34:
22b75d0a
DM		 3410 case R_SPARC_UA64:
3411 r_sparc_plt32:
3348747a
NS		 3412 if ((input_section->flags & SEC_ALLOC) == 0
3413 || is_vxworks_tls)
22b75d0a
DM		 3414 break;
3415
bb1dd176
QZ		 3416 /* Copy dynamic function pointer relocations. Don't generate
3417 dynamic relocations against resolved undefined weak symbols
3418 in PIE. */
0e1862bb 3419 if ((bfd_link_pic (info)
22b75d0a 3420 && (h == NULL
bb1dd176
QZ		 3421 || ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3422 && !resolved_to_zero)
3423 || h->root.type != bfd_link_hash_undefweak))
22b75d0a 3424 && (! howto->pc_relative
72fbc6e5 3425 || !SYMBOL_CALLS_LOCAL (info, h)))
0e1862bb 3426 || (!bfd_link_pic (info)
22b75d0a
DM		 3427 && h != NULL
3428 && h->dynindx != -1
3429 && !h->non_got_ref
3430 && ((h->def_dynamic
3431 && !h->def_regular)
bb1dd176
QZ		 3432 || (h->root.type == bfd_link_hash_undefweak
3433 && !resolved_to_zero)
22b75d0a
DM		 3434 || h->root.type == bfd_link_hash_undefined)))
3435 {
3436 Elf_Internal_Rela outrel;
3437 bfd_boolean skip, relocate = FALSE;
3438
3439 /* When generating a shared object, these relocations
3440 are copied into the output file to be resolved at run
3441 time. */
3442
3443 BFD_ASSERT (sreloc != NULL);
3444
3445 skip = FALSE;
3446
3447 outrel.r_offset =
3448 _bfd_elf_section_offset (output_bfd, info, input_section,
3449 rel->r_offset);
3450 if (outrel.r_offset == (bfd_vma) -1)
3451 skip = TRUE;
3452 else if (outrel.r_offset == (bfd_vma) -2)
3453 skip = TRUE, relocate = TRUE;
3454 outrel.r_offset += (input_section->output_section->vma
3455 + input_section->output_offset);
3456
3457 /* Optimize unaligned reloc usage now that we know where
3458 it finally resides. */
3459 switch (r_type)
3460 {
3461 case R_SPARC_16:
3462 if (outrel.r_offset & 1)
3463 r_type = R_SPARC_UA16;
3464 break;
3465 case R_SPARC_UA16:
3466 if (!(outrel.r_offset & 1))
3467 r_type = R_SPARC_16;
3468 break;
3469 case R_SPARC_32:
3470 if (outrel.r_offset & 3)
3471 r_type = R_SPARC_UA32;
3472 break;
3473 case R_SPARC_UA32:
3474 if (!(outrel.r_offset & 3))
3475 r_type = R_SPARC_32;
3476 break;
3477 case R_SPARC_64:
3478 if (outrel.r_offset & 7)
3479 r_type = R_SPARC_UA64;
3480 break;
3481 case R_SPARC_UA64:
3482 if (!(outrel.r_offset & 7))
3483 r_type = R_SPARC_64;
3484 break;
3485 case R_SPARC_DISP8:
3486 case R_SPARC_DISP16:
3487 case R_SPARC_DISP32:
3488 case R_SPARC_DISP64:
3489 /* If the symbol is not dynamic, we should not keep
3490 a dynamic relocation. But an .rela.* slot has been
3491 allocated for it, output R_SPARC_NONE.
3492 FIXME: Add code tracking needed dynamic relocs as
3493 e.g. i386 has. */
3494 if (h->dynindx == -1)
3495 skip = TRUE, relocate = TRUE;
3496 break;
3497 }
3498
3499 if (skip)
3500 memset (&outrel, 0, sizeof outrel);
3501 /* h->dynindx may be -1 if the symbol was marked to
3502 become local. */
886a2506
NC		 3503 else if (h != NULL
3504 && h->dynindx != -1
3505 && (_bfd_sparc_elf_howto_table[r_type].pc_relative
0e1862bb 3506 || !bfd_link_pic (info)
72fbc6e5 3507 || !SYMBOLIC_BIND (info, h)
22b75d0a
DM		 3508 || !h->def_regular))
3509 {
3510 BFD_ASSERT (h->dynindx != -1);
3511 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3512 outrel.r_addend = rel->r_addend;
3513 }
3514 else
3515 {
7160c10d
JC		 3516 if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3517 || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
22b75d0a
DM		 3518 {
3519 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3520 0, R_SPARC_RELATIVE);
3521 outrel.r_addend = relocation + rel->r_addend;
3522 }
3523 else
3524 {
3525 long indx;
3526
74541ad4
AM		 3527 outrel.r_addend = relocation + rel->r_addend;
3528
22b75d0a 3529 if (is_plt)
72fbc6e5 3530 sec = htab->elf.splt;
22b75d0a
DM		 3531
3532 if (bfd_is_abs_section (sec))
3533 indx = 0;
3534 else if (sec == NULL || sec->owner == NULL)
3535 {
3536 bfd_set_error (bfd_error_bad_value);
3537 return FALSE;
3538 }
3539 else
3540 {
3541 asection *osec;
3542
74541ad4
AM		 3543 /* We are turning this relocation into one
3544 against a section symbol. It would be
3545 proper to subtract the symbol's value,
3546 osec->vma, from the emitted reloc addend,
3547 but ld.so expects buggy relocs. */
22b75d0a
DM		 3548 osec = sec->output_section;
3549 indx = elf_section_data (osec)->dynindx;
3550
74541ad4
AM		 3551 if (indx == 0)
3552 {
3553 osec = htab->elf.text_index_section;
3554 indx = elf_section_data (osec)->dynindx;
3555 }
3556
22b75d0a
DM		 3557 /* FIXME: we really should be able to link non-pic
3558 shared libraries. */
3559 if (indx == 0)
3560 {
3561 BFD_FAIL ();
4eca0228 3562 _bfd_error_handler
22b75d0a
DM		 3563 (_("%B: probably compiled without -fPIC?"),
3564 input_bfd);
3565 bfd_set_error (bfd_error_bad_value);
3566 return FALSE;
3567 }
3568 }
3569
74541ad4
AM		 3570 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3571 r_type);
22b75d0a
DM		 3572 }
3573 }
3574
39817122 3575 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3576
3577 /* This reloc will be computed at runtime, so there's no
3578 need to do anything now. */
3579 if (! relocate)
3580 continue;
3581 }
3582 break;
3583
3584 case R_SPARC_TLS_GD_HI22:
3585 if (! ABI_64_P (input_bfd)
3586 && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
3587 {
3588 /* R_SPARC_REV32 used the same reloc number as
3589 R_SPARC_TLS_GD_HI22. */
3590 r_type = R_SPARC_REV32;
3591 break;
3592 }
3593 /* Fall through */
3594
3595 case R_SPARC_TLS_GD_LO10:
3596 case R_SPARC_TLS_IE_HI22:
3597 case R_SPARC_TLS_IE_LO10:
3598 r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
3599 tls_type = GOT_UNKNOWN;
3600 if (h == NULL && local_got_offsets)
3601 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3602 else if (h != NULL)
3603 {
3604 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
0fb7012e 3605 if (bfd_link_executable (info)
0e1862bb
L		 3606 && h->dynindx == -1
3607 && tls_type == GOT_TLS_IE)
22b75d0a
DM		 3608 switch (SPARC_ELF_R_TYPE (rel->r_info))
3609 {
3610 case R_SPARC_TLS_GD_HI22:
3611 case R_SPARC_TLS_IE_HI22:
3612 r_type = R_SPARC_TLS_LE_HIX22;
3613 break;
3614 default:
3615 r_type = R_SPARC_TLS_LE_LOX10;
3616 break;
3617 }
3618 }
3619 if (tls_type == GOT_TLS_IE)
3620 switch (r_type)
3621 {
3622 case R_SPARC_TLS_GD_HI22:
3623 r_type = R_SPARC_TLS_IE_HI22;
3624 break;
3625 case R_SPARC_TLS_GD_LO10:
3626 r_type = R_SPARC_TLS_IE_LO10;
3627 break;
3628 }
3629
3630 if (r_type == R_SPARC_TLS_LE_HIX22)
3631 {
3632 relocation = tpoff (info, relocation);
3633 break;
3634 }
3635 if (r_type == R_SPARC_TLS_LE_LOX10)
3636 {
3637 /* Change add into xor. */
3638 relocation = tpoff (info, relocation);
3639 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3640 contents + rel->r_offset)
3641 | 0x80182000), contents + rel->r_offset);
3642 break;
3643 }
3644
3645 if (h != NULL)
3646 {
3647 off = h->got.offset;
3648 h->got.offset |= 1;
3649 }
3650 else
3651 {
3652 BFD_ASSERT (local_got_offsets != NULL);
3653 off = local_got_offsets[r_symndx];
3654 local_got_offsets[r_symndx] |= 1;
3655 }
3656
3657 r_sparc_tlsldm:
72fbc6e5 3658 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3659 abort ();
3660
3661 if ((off & 1) != 0)
3662 off &= ~1;
3663 else
3664 {
3665 Elf_Internal_Rela outrel;
3666 int dr_type, indx;
3667
72fbc6e5 3668 if (htab->elf.srelgot == NULL)
22b75d0a
DM		 3669 abort ();
3670
72fbc6e5
DM		 3671 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3672 htab->elf.sgot->contents + off);
3673 outrel.r_offset = (htab->elf.sgot->output_section->vma
3674 + htab->elf.sgot->output_offset + off);
22b75d0a
DM		 3675 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3676 if (r_type == R_SPARC_TLS_IE_HI22
3677 || r_type == R_SPARC_TLS_IE_LO10)
3678 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3679 else
3680 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3681 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3682 outrel.r_addend = relocation - dtpoff_base (info);
3683 else
3684 outrel.r_addend = 0;
3685 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
72fbc6e5 3686 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
22b75d0a
DM		 3687
3688 if (r_type == R_SPARC_TLS_GD_HI22
3689 || r_type == R_SPARC_TLS_GD_LO10)
3690 {
3691 if (indx == 0)
3692 {
3693 BFD_ASSERT (! unresolved_reloc);
3694 SPARC_ELF_PUT_WORD (htab, output_bfd,
3695 relocation - dtpoff_base (info),
72fbc6e5 3696 (htab->elf.sgot->contents + off
22b75d0a
DM		 3697 + SPARC_ELF_WORD_BYTES (htab)));
3698 }
3699 else
3700 {
3701 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3702 (htab->elf.sgot->contents + off
22b75d0a
DM		 3703 + SPARC_ELF_WORD_BYTES (htab)));
3704 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3705 SPARC_ELF_DTPOFF_RELOC (htab));
3706 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
72fbc6e5 3707 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
39817122 3708 &outrel);
22b75d0a
DM		 3709 }
3710 }
3711 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3712 {
3713 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3714 (htab->elf.sgot->contents + off
22b75d0a
DM		 3715 + SPARC_ELF_WORD_BYTES (htab)));
3716 }
3717 }
3718
3719 if (off >= (bfd_vma) -2)
3720 abort ();
3721
72fbc6e5 3722 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3723 unresolved_reloc = FALSE;
3724 howto = _bfd_sparc_elf_howto_table + r_type;
3725 break;
3726
3727 case R_SPARC_TLS_LDM_HI22:
3728 case R_SPARC_TLS_LDM_LO10:
0e1862bb 3729 if (! bfd_link_pic (info))
22b75d0a
DM		 3730 {
3731 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3732 continue;
3733 }
3734 off = htab->tls_ldm_got.offset;
3735 htab->tls_ldm_got.offset |= 1;
3736 goto r_sparc_tlsldm;
3737
3738 case R_SPARC_TLS_LDO_HIX22:
3739 case R_SPARC_TLS_LDO_LOX10:
0e1862bb 3740 if (bfd_link_pic (info))
22b75d0a
DM		 3741 {
3742 relocation -= dtpoff_base (info);
3743 break;
3744 }
3745
3746 r_type = (r_type == R_SPARC_TLS_LDO_HIX22
3747 ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
3748 /* Fall through. */
3749
3750 case R_SPARC_TLS_LE_HIX22:
3751 case R_SPARC_TLS_LE_LOX10:
0fb7012e 3752 if (!bfd_link_executable (info))
22b75d0a
DM		 3753 {
3754 Elf_Internal_Rela outrel;
c7e2358a 3755 bfd_boolean skip;
22b75d0a
DM		 3756
3757 BFD_ASSERT (sreloc != NULL);
3758 skip = FALSE;
3759 outrel.r_offset =
3760 _bfd_elf_section_offset (output_bfd, info, input_section,
3761 rel->r_offset);
3762 if (outrel.r_offset == (bfd_vma) -1)
3763 skip = TRUE;
3764 else if (outrel.r_offset == (bfd_vma) -2)
c7e2358a 3765 skip = TRUE;
22b75d0a
DM		 3766 outrel.r_offset += (input_section->output_section->vma
3767 + input_section->output_offset);
3768 if (skip)
3769 memset (&outrel, 0, sizeof outrel);
3770 else
3771 {
3772 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3773 outrel.r_addend = relocation - dtpoff_base (info)
3774 + rel->r_addend;
3775 }
3776
39817122 3777 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3778 continue;
3779 }
3780 relocation = tpoff (info, relocation);
3781 break;
3782
3783 case R_SPARC_TLS_LDM_CALL:
0fb7012e 3784 if (bfd_link_executable (info))
22b75d0a
DM		 3785 {
3786 /* mov %g0, %o0 */
3787 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3788 continue;
3789 }
3790 /* Fall through */
3791
3792 case R_SPARC_TLS_GD_CALL:
3793 tls_type = GOT_UNKNOWN;
3794 if (h == NULL && local_got_offsets)
3795 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3796 else if (h != NULL)
3797 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
0fb7012e 3798 if (bfd_link_executable (info)
22b75d0a
DM		 3799 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3800 {
abd242a9 3801 Elf_Internal_Rela *rel2;
22b75d0a
DM		 3802 bfd_vma insn;
3803
0e1862bb 3804 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
22b75d0a
DM		 3805 {
3806 /* GD -> LE */
3807 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3808 continue;
3809 }
3810
3811 /* GD -> IE */
3812 if (rel + 1 < relend
3813 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3814 && rel[1].r_offset == rel->r_offset + 4
3815 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3816 && (((insn = bfd_get_32 (input_bfd,
3817 contents + rel[1].r_offset))
3818 >> 25) & 0x1f) == 8)
3819 {
3820 /* We have
3821 call __tls_get_addr, %tgd_call(foo)
3822 add %reg1, %reg2, %o0, %tgd_add(foo)
3823 and change it into IE:
3824 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3825 add %g7, %o0, %o0, %tie_add(foo).
3826 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3827 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3828 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3829 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3830 contents + rel->r_offset);
3831 bfd_put_32 (output_bfd, 0x9001c008,
3832 contents + rel->r_offset + 4);
3833 rel++;
3834 continue;
3835 }
3836
abd242a9
DM		 3837 /* We cannot just overwrite the delay slot instruction,
3838 as it might be what puts the %o0 argument to
3839 __tls_get_addr into place. So we have to transpose
3840 the delay slot with the add we patch in. */
3841 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3842 bfd_put_32 (output_bfd, insn,
3843 contents + rel->r_offset);
3844 bfd_put_32 (output_bfd, 0x9001c008,
3845 contents + rel->r_offset + 4);
3846
3847 rel2 = rel;
3848 while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3849 rel->r_offset + 4))
3850 != NULL)
3851 {
3852 /* If the instruction we moved has a relocation attached to
3853 it, adjust the offset so that it will apply to the correct
3854 instruction. */
3855 rel2->r_offset -= 4;
3856 }
22b75d0a
DM		 3857 continue;
3858 }
3859
3860 h = (struct elf_link_hash_entry *)
3861 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3862 FALSE, TRUE);
3863 BFD_ASSERT (h != NULL);
3864 r_type = R_SPARC_WPLT30;
3865 howto = _bfd_sparc_elf_howto_table + r_type;
3866 goto r_sparc_wplt30;
3867
3868 case R_SPARC_TLS_GD_ADD:
3869 tls_type = GOT_UNKNOWN;
3870 if (h == NULL && local_got_offsets)
3871 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3872 else if (h != NULL)
3873 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
0e1862bb 3874 if (! bfd_link_pic (info) || tls_type == GOT_TLS_IE)
22b75d0a
DM		 3875 {
3876 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3877 changed into IE:
3878 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3879 or LE:
3880 add %g7, %reg2, %reg3. */
3881 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
0e1862bb 3882 if ((h != NULL && h->dynindx != -1) || bfd_link_pic (info))
22b75d0a
DM		 3883 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
3884 else
3885 relocation = (insn & ~0x7c000) | 0x1c000;
3886 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3887 }
3888 continue;
3889
3890 case R_SPARC_TLS_LDM_ADD:
0e1862bb 3891 if (! bfd_link_pic (info))
22b75d0a
DM		 3892 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3893 continue;
3894
3895 case R_SPARC_TLS_LDO_ADD:
0e1862bb 3896 if (! bfd_link_pic (info))
22b75d0a
DM		 3897 {
3898 /* Change rs1 into %g7. */
3899 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3900 insn = (insn & ~0x7c000) | 0x1c000;
3901 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3902 }
3903 continue;
3904
3905 case R_SPARC_TLS_IE_LD:
3906 case R_SPARC_TLS_IE_LDX:
0fb7012e 3907 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
22b75d0a
DM		 3908 {
3909 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3910 int rs2 = insn & 0x1f;
3911 int rd = (insn >> 25) & 0x1f;
3912
3913 if (rs2 == rd)
3914 relocation = SPARC_NOP;
3915 else
3916 relocation = 0x80100000 | (insn & 0x3e00001f);
3917 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3918 }
3919 continue;
3920
3921 case R_SPARC_TLS_IE_ADD:
3922 /* Totally useless relocation. */
3923 continue;
3924
3925 case R_SPARC_TLS_DTPOFF32:
3926 case R_SPARC_TLS_DTPOFF64:
3927 relocation -= dtpoff_base (info);
3928 break;
3929
3930 default:
3931 break;
3932 }
3933
3934 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3935 because such sections are not SEC_ALLOC and thus ld.so will
3936 not process them. */
3937 if (unresolved_reloc
3938 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 3939 && h->def_dynamic)
3940 && _bfd_elf_section_offset (output_bfd, info, input_section,
3941 rel->r_offset) != (bfd_vma) -1)
4eca0228 3942 _bfd_error_handler
695344c0 3943 /* xgettext:c-format */
d42c267e 3944 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
22b75d0a
DM		 3945 input_bfd,
3946 input_section,
d42c267e 3947 rel->r_offset,
843fe662 3948 howto->name,
22b75d0a
DM		 3949 h->root.root.string);
3950
3951 r = bfd_reloc_continue;
3952 if (r_type == R_SPARC_OLO10)
3953 {
3954 bfd_vma x;
3955
3956 if (! ABI_64_P (output_bfd))
3957 abort ();
3958
3959 relocation += rel->r_addend;
3960 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3961
3962 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3963 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3964 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3965
3966 r = bfd_check_overflow (howto->complain_on_overflow,
3967 howto->bitsize, howto->rightshift,
3968 bfd_arch_bits_per_address (input_bfd),
3969 relocation);
3970 }
3971 else if (r_type == R_SPARC_WDISP16)
3972 {
3973 bfd_vma x;
3974
3975 relocation += rel->r_addend;
3976 relocation -= (input_section->output_section->vma
3977 + input_section->output_offset);
3978 relocation -= rel->r_offset;
3979
3980 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3981 x |= ((((relocation >> 2) & 0xc000) << 6)
3982 | ((relocation >> 2) & 0x3fff));
3983 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3984
2615994e
DM		 3985 r = bfd_check_overflow (howto->complain_on_overflow,
3986 howto->bitsize, howto->rightshift,
3987 bfd_arch_bits_per_address (input_bfd),
3988 relocation);
3989 }
3990 else if (r_type == R_SPARC_WDISP10)
3991 {
3992 bfd_vma x;
3993
3994 relocation += rel->r_addend;
3995 relocation -= (input_section->output_section->vma
3996 + input_section->output_offset);
3997 relocation -= rel->r_offset;
3998
3999 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4000 x |= ((((relocation >> 2) & 0x300) << 11)
4001 | (((relocation >> 2) & 0xff) << 5));
4002 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4003
22b75d0a
DM		 4004 r = bfd_check_overflow (howto->complain_on_overflow,
4005 howto->bitsize, howto->rightshift,
4006 bfd_arch_bits_per_address (input_bfd),
4007 relocation);
4008 }
4009 else if (r_type == R_SPARC_REV32)
4010 {
4011 bfd_vma x;
4012
4013 relocation = relocation + rel->r_addend;
4014
4015 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4016 x = x + relocation;
4017 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
4018 r = bfd_reloc_ok;
4019 }
4020 else if (r_type == R_SPARC_TLS_LDO_HIX22
4021 || r_type == R_SPARC_TLS_LE_HIX22)
4022 {
4023 bfd_vma x;
4024
4025 relocation += rel->r_addend;
4026 if (r_type == R_SPARC_TLS_LE_HIX22)
4027 relocation ^= MINUS_ONE;
4028
4029 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4030 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4031 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4032 r = bfd_reloc_ok;
4033 }
4034 else if (r_type == R_SPARC_TLS_LDO_LOX10
4035 || r_type == R_SPARC_TLS_LE_LOX10)
4036 {
4037 bfd_vma x;
4038
4039 relocation += rel->r_addend;
4040 relocation &= 0x3ff;
4041 if (r_type == R_SPARC_TLS_LE_LOX10)
4042 relocation |= 0x1c00;
4043
4044 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4045 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4046 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4047
4048 r = bfd_reloc_ok;
4049 }
00c50991 4050 else if (r_type == R_SPARC_HIX22
cc133f9f
JC		 4051 || r_type == R_SPARC_GOTDATA_HIX22
4052 || r_type == R_SPARC_GOTDATA_OP_HIX22)
22b75d0a
DM		 4053 {
4054 bfd_vma x;
4055
4056 relocation += rel->r_addend;
00c50991
DM		 4057 if (r_type == R_SPARC_HIX22
4058 || (bfd_signed_vma) relocation < 0)
4059 relocation = relocation ^ MINUS_ONE;
22b75d0a
DM		 4060
4061 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4062 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4063 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4064
4065 r = bfd_check_overflow (howto->complain_on_overflow,
4066 howto->bitsize, howto->rightshift,
4067 bfd_arch_bits_per_address (input_bfd),
4068 relocation);
4069 }
00c50991 4070 else if (r_type == R_SPARC_LOX10
cc133f9f
JC		 4071 || r_type == R_SPARC_GOTDATA_LOX10
4072 || r_type == R_SPARC_GOTDATA_OP_LOX10)
22b75d0a
DM		 4073 {
4074 bfd_vma x;
4075
4076 relocation += rel->r_addend;
00c50991
DM		 4077 if (r_type == R_SPARC_LOX10
4078 || (bfd_signed_vma) relocation < 0)
4079 relocation = (relocation & 0x3ff) | 0x1c00;
4080 else
4081 relocation = (relocation & 0x3ff);
22b75d0a
DM		 4082
4083 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4084 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4085 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4086
4087 r = bfd_reloc_ok;
4088 }
4089 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
4090 && sec_do_relax (input_section)
4091 && rel->r_offset + 4 < input_section->size)
4092 {
4093#define G0 0
4094#define O7 15
4095#define XCC (2 << 20)
4096#define COND(x) (((x)&0xf)<<25)
4097#define CONDA COND(0x8)
4098#define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
4099#define INSN_BA (F2(0,2) | CONDA)
4100#define INSN_OR F3(2, 0x2, 0)
4101#define INSN_NOP F2(0,4)
4102
4103 bfd_vma x, y;
4104
4105 /* If the instruction is a call with either:
4106 restore
4107 arithmetic instruction with rd == %o7
4108 where rs1 != %o7 and rs2 if it is register != %o7
4109 then we can optimize if the call destination is near
4110 by changing the call into a branch always. */
4111 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4112 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
4113 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
4114 {
4115 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
4116 || ((y & OP3(0x28)) == 0 /* arithmetic */
4117 && (y & RD(~0)) == RD(O7)))
4118 && (y & RS1(~0)) != RS1(O7)
4119 && ((y & F3I(~0))
4120 || (y & RS2(~0)) != RS2(O7)))
4121 {
4122 bfd_vma reloc;
4123
4124 reloc = relocation + rel->r_addend - rel->r_offset;
4125 reloc -= (input_section->output_section->vma
4126 + input_section->output_offset);
4127
4128 /* Ensure the branch fits into simm22. */
4129 if ((reloc & 3) == 0
4130 && ((reloc & ~(bfd_vma)0x7fffff) == 0
4131 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4132 {
4133 reloc >>= 2;
4134
4135 /* Check whether it fits into simm19. */
4136 if (((reloc & 0x3c0000) == 0
4137 || (reloc & 0x3c0000) == 0x3c0000)
4138 && (ABI_64_P (output_bfd)
4139 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4140 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4141 else
4142 x = INSN_BA | (reloc & 0x3fffff); /* ba */
4143 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4144 r = bfd_reloc_ok;
4145 if (rel->r_offset >= 4
4146 && (y & (0xffffffff ^ RS1(~0)))
4147 == (INSN_OR | RD(O7) | RS2(G0)))
4148 {
4149 bfd_vma z;
4150 unsigned int reg;
4151
4152 z = bfd_get_32 (input_bfd,
4153 contents + rel->r_offset - 4);
4154 if ((z & (0xffffffff ^ RD(~0)))
4155 != (INSN_OR | RS1(O7) | RS2(G0)))
597e138c 4156 continue;
22b75d0a
DM		 4157
4158 /* The sequence was
4159 or %o7, %g0, %rN
4160 call foo
4161 or %rN, %g0, %o7
4162
4163 If call foo was replaced with ba, replace
4164 or %rN, %g0, %o7 with nop. */
4165
4166 reg = (y & RS1(~0)) >> 14;
4167 if (reg != ((z & RD(~0)) >> 25)
4168 || reg == G0 || reg == O7)
597e138c 4169 continue;
22b75d0a
DM		 4170
4171 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4172 contents + rel->r_offset + 4);
4173 }
4174
4175 }
4176 }
4177 }
4178 }
4179
4180 if (r == bfd_reloc_continue)
d0c9aeb3
DM		 4181 {
4182do_relocation:
4183 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4184 contents, rel->r_offset,
4185 relocation, rel->r_addend);
4186 }
22b75d0a
DM		 4187 if (r != bfd_reloc_ok)
4188 {
4189 switch (r)
4190 {
4191 default:
4192 case bfd_reloc_outofrange:
4193 abort ();
4194 case bfd_reloc_overflow:
4195 {
4196 const char *name;
4197
68ffbac6 4198 /* The Solaris native linker silently disregards overflows.
dc669dc8
EB		 4199 We don't, but this breaks stabs debugging info, whose
4200 relocations are only 32-bits wide. Ignore overflows in
4201 this case and also for discarded entries. */
0bef263a
RO		 4202 if ((r_type == R_SPARC_32
4203 || r_type == R_SPARC_UA32
4204 || r_type == R_SPARC_DISP32)
dc669dc8
EB		 4205 && (((input_section->flags & SEC_DEBUGGING) != 0
4206 && strcmp (bfd_section_name (input_bfd,
4207 input_section),
4208 ".stab") == 0)
4209 || _bfd_elf_section_offset (output_bfd, info,
4210 input_section,
4211 rel->r_offset)
4212 == (bfd_vma)-1))
4213 break;
4214
22b75d0a 4215 if (h != NULL)
bb29dfea
EB		 4216 {
4217 /* Assume this is a call protected by other code that
4218 detect the symbol is undefined. If this is the case,
4219 we can safely ignore the overflow. If not, the
4220 program is hosed anyway, and a little warning isn't
4221 going to help. */
4222 if (h->root.type == bfd_link_hash_undefweak
4223 && howto->pc_relative)
4224 break;
4225
4226 name = NULL;
4227 }
22b75d0a
DM		 4228 else
4229 {
4230 name = bfd_elf_string_from_elf_section (input_bfd,
4231 symtab_hdr->sh_link,
4232 sym->st_name);
4233 if (name == NULL)
4234 return FALSE;
4235 if (*name == '\0')
4236 name = bfd_section_name (input_bfd, sec);
4237 }
1a72702b
AM		 4238 (*info->callbacks->reloc_overflow)
4239 (info, (h ? &h->root : NULL), name, howto->name,
4240 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
22b75d0a
DM		 4241 }
4242 break;
4243 }
4244 }
4245 }
4246
4247 return TRUE;
4248}
4249
910600e9
RS		 4250/* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4251 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4252 is the offset of the associated .got.plt entry from
4253 _GLOBAL_OFFSET_TABLE_. */
4254
4255static void
4256sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4257 bfd_vma plt_offset, bfd_vma plt_index,
4258 bfd_vma got_offset)
4259{
4260 bfd_vma got_base;
4261 const bfd_vma *plt_entry;
4262 struct _bfd_sparc_elf_link_hash_table *htab;
4263 bfd_byte *loc;
4264 Elf_Internal_Rela rela;
4265
4266 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4267 BFD_ASSERT (htab != NULL);
4268
0e1862bb 4269 if (bfd_link_pic (info))
910600e9
RS		 4270 {
4271 plt_entry = sparc_vxworks_shared_plt_entry;
4272 got_base = 0;
4273 }
4274 else
4275 {
4276 plt_entry = sparc_vxworks_exec_plt_entry;
4277 got_base = (htab->elf.hgot->root.u.def.value
4278 + htab->elf.hgot->root.u.def.section->output_offset
4279 + htab->elf.hgot->root.u.def.section->output_section->vma);
4280 }
4281
4282 /* Fill in the entry in the procedure linkage table. */
4283 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
72fbc6e5 4284 htab->elf.splt->contents + plt_offset);
910600e9 4285 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
72fbc6e5 4286 htab->elf.splt->contents + plt_offset + 4);
910600e9 4287 bfd_put_32 (output_bfd, plt_entry[2],
72fbc6e5 4288 htab->elf.splt->contents + plt_offset + 8);
910600e9 4289 bfd_put_32 (output_bfd, plt_entry[3],
72fbc6e5 4290 htab->elf.splt->contents + plt_offset + 12);
910600e9 4291 bfd_put_32 (output_bfd, plt_entry[4],
72fbc6e5 4292 htab->elf.splt->contents + plt_offset + 16);
910600e9 4293 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
72fbc6e5 4294 htab->elf.splt->contents + plt_offset + 20);
910600e9
RS		 4295 /* PC-relative displacement for a branch to the start of
4296 the PLT section. */
4297 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4298 & 0x003fffff),
72fbc6e5 4299 htab->elf.splt->contents + plt_offset + 24);
910600e9 4300 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
72fbc6e5 4301 htab->elf.splt->contents + plt_offset + 28);
910600e9
RS		 4302
4303 /* Fill in the .got.plt entry, pointing initially at the
4304 second half of the PLT entry. */
72fbc6e5 4305 BFD_ASSERT (htab->elf.sgotplt != NULL);
910600e9 4306 bfd_put_32 (output_bfd,
72fbc6e5
DM		 4307 htab->elf.splt->output_section->vma
4308 + htab->elf.splt->output_offset
910600e9 4309 + plt_offset + 20,
72fbc6e5 4310 htab->elf.sgotplt->contents + got_offset);
910600e9
RS		 4311
4312 /* Add relocations to .rela.plt.unloaded. */
0e1862bb 4313 if (!bfd_link_pic (info))
910600e9
RS		 4314 {
4315 loc = (htab->srelplt2->contents
4316 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4317
4318 /* Relocate the initial sethi. */
72fbc6e5
DM		 4319 rela.r_offset = (htab->elf.splt->output_section->vma
4320 + htab->elf.splt->output_offset
910600e9
RS		 4321 + plt_offset);
4322 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4323 rela.r_addend = got_offset;
4324 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4325 loc += sizeof (Elf32_External_Rela);
4326
4327 /* Likewise the following or. */
4328 rela.r_offset += 4;
4329 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4330 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4331 loc += sizeof (Elf32_External_Rela);
4332
4333 /* Relocate the .got.plt entry. */
72fbc6e5
DM		 4334 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4335 + htab->elf.sgotplt->output_offset
910600e9
RS		 4336 + got_offset);
4337 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4338 rela.r_addend = plt_offset + 20;
4339 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4340 }
4341}
4342
22b75d0a
DM		 4343/* Finish up dynamic symbol handling. We set the contents of various
4344 dynamic sections here. */
4345
4346bfd_boolean
4347_bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4348 struct bfd_link_info *info,
4349 struct elf_link_hash_entry *h,
4350 Elf_Internal_Sym *sym)
4351{
22b75d0a 4352 struct _bfd_sparc_elf_link_hash_table *htab;
39817122 4353 const struct elf_backend_data *bed;
bb1dd176
QZ		 4354 struct _bfd_sparc_elf_link_hash_entry *eh;
4355 bfd_boolean local_undefweak;
22b75d0a
DM		 4356
4357 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4358 BFD_ASSERT (htab != NULL);
39817122 4359 bed = get_elf_backend_data (output_bfd);
22b75d0a 4360
bb1dd176
QZ		 4361 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4362
4363 /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4364 resolved undefined weak symbols in executable so that their
4365 references have value 0 at run-time. */
4366 local_undefweak = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
4367
22b75d0a
DM		 4368 if (h->plt.offset != (bfd_vma) -1)
4369 {
4370 asection *splt;
4371 asection *srela;
4372 Elf_Internal_Rela rela;
4373 bfd_byte *loc;
910600e9 4374 bfd_vma r_offset, got_offset;
22b75d0a
DM		 4375 int rela_index;
4376
d0c9aeb3
DM		 4377 /* When building a static executable, use .iplt and
4378 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4379 if (htab->elf.splt != NULL)
4380 {
4381 splt = htab->elf.splt;
4382 srela = htab->elf.srelplt;
4383 }
4384 else
4385 {
4386 splt = htab->elf.iplt;
4387 srela = htab->elf.irelplt;
4388 }
22b75d0a 4389
d0c9aeb3
DM		 4390 if (splt == NULL || srela == NULL)
4391 abort ();
22b75d0a 4392
22b75d0a 4393 /* Fill in the entry in the .rela.plt section. */
910600e9 4394 if (htab->is_vxworks)
22b75d0a 4395 {
910600e9
RS		 4396 /* Work out the index of this PLT entry. */
4397 rela_index = ((h->plt.offset - htab->plt_header_size)
4398 / htab->plt_entry_size);
4399
4400 /* Calculate the offset of the associated .got.plt entry.
4401 The first three entries are reserved. */
4402 got_offset = (rela_index + 3) * 4;
4403
4404 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4405 rela_index, got_offset);
4406
4407
4408 /* On VxWorks, the relocation points to the .got.plt entry,
4409 not the .plt entry. */
72fbc6e5
DM		 4410 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4411 + htab->elf.sgotplt->output_offset
910600e9 4412 + got_offset);
22b75d0a 4413 rela.r_addend = 0;
d0c9aeb3
DM		 4414 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4415 R_SPARC_JMP_SLOT);
22b75d0a
DM		 4416 }
4417 else
4418 {
d0c9aeb3
DM		 4419 bfd_boolean ifunc = FALSE;
4420
910600e9
RS		 4421 /* Fill in the entry in the procedure linkage table. */
4422 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4423 h->plt.offset, splt->size,
4424 &r_offset);
4425
d0c9aeb3
DM		 4426 if (h == NULL
4427 || h->dynindx == -1
0e1862bb 4428 || ((bfd_link_executable (info)
d0c9aeb3
DM		 4429 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4430 && h->def_regular
4431 && h->type == STT_GNU_IFUNC))
4432 {
4433 ifunc = TRUE;
4434 BFD_ASSERT (h == NULL
4435 || (h->type == STT_GNU_IFUNC
4436 && h->def_regular
4437 && (h->root.type == bfd_link_hash_defined
4438 || h->root.type == bfd_link_hash_defweak)));
4439 }
4440
910600e9
RS		 4441 rela.r_offset = r_offset
4442 + (splt->output_section->vma + splt->output_offset);
d0c9aeb3
DM		 4443 if (ABI_64_P (output_bfd)
4444 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
910600e9 4445 {
d0c9aeb3
DM		 4446 if (ifunc)
4447 {
4448 rela.r_addend = (h->root.u.def.section->output_section->vma
4449 + h->root.u.def.section->output_offset
4450 + h->root.u.def.value);
4451 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4452 R_SPARC_IRELATIVE);
4453 }
4454 else
4455 {
4456 rela.r_addend = (-(h->plt.offset + 4)
4457 - splt->output_section->vma
4458 - splt->output_offset);
4459 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4460 R_SPARC_JMP_SLOT);
4461 }
910600e9
RS		 4462 }
4463 else
4464 {
d0c9aeb3
DM		 4465 if (ifunc)
4466 {
4467 rela.r_addend = (h->root.u.def.section->output_section->vma
4468 + h->root.u.def.section->output_offset
4469 + h->root.u.def.value);
4470 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4471 R_SPARC_JMP_IREL);
4472 }
4473 else
4474 {
4475 rela.r_addend = 0;
4476 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4477 R_SPARC_JMP_SLOT);
4478 }
910600e9 4479 }
22b75d0a 4480 }
22b75d0a
DM		 4481
4482 /* Adjust for the first 4 reserved elements in the .plt section
4483 when setting the offset in the .rela.plt section.
4484 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4485 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4486
4487 loc = srela->contents;
39817122
RS		 4488 loc += rela_index * bed->s->sizeof_rela;
4489 bed->s->swap_reloca_out (output_bfd, &rela, loc);
22b75d0a 4490
bb1dd176
QZ		 4491 if (!local_undefweak
4492 && !h->def_regular)
22b75d0a
DM		 4493 {
4494 /* Mark the symbol as undefined, rather than as defined in
4495 the .plt section. Leave the value alone. */
4496 sym->st_shndx = SHN_UNDEF;
4497 /* If the symbol is weak, we do need to clear the value.
4498 Otherwise, the PLT entry would provide a definition for
4499 the symbol even if the symbol wasn't defined anywhere,
4500 and so the symbol would never be NULL. */
4501 if (!h->ref_regular_nonweak)
4502 sym->st_value = 0;
4503 }
4504 }
4505
bb1dd176
QZ		 4506 /* Don't generate dynamic GOT relocation against undefined weak
4507 symbol in executable. */
22b75d0a
DM		 4508 if (h->got.offset != (bfd_vma) -1
4509 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
bb1dd176
QZ		 4510 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
4511 && !local_undefweak)
22b75d0a
DM		 4512 {
4513 asection *sgot;
4514 asection *srela;
4515 Elf_Internal_Rela rela;
4516
4517 /* This symbol has an entry in the GOT. Set it up. */
4518
72fbc6e5
DM		 4519 sgot = htab->elf.sgot;
4520 srela = htab->elf.srelgot;
22b75d0a
DM		 4521 BFD_ASSERT (sgot != NULL && srela != NULL);
4522
4523 rela.r_offset = (sgot->output_section->vma
4524 + sgot->output_offset
4525 + (h->got.offset &~ (bfd_vma) 1));
4526
4527 /* If this is a -Bsymbolic link, and the symbol is defined
4528 locally, we just want to emit a RELATIVE reloc. Likewise if
4529 the symbol was forced to be local because of a version file.
4530 The entry in the global offset table will already have been
4531 initialized in the relocate_section function. */
0e1862bb 4532 if (! bfd_link_pic (info)
d0c9aeb3
DM		 4533 && h->type == STT_GNU_IFUNC
4534 && h->def_regular)
4535 {
4536 asection *plt;
4537
4538 /* We load the GOT entry with the PLT entry. */
4539 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4540 SPARC_ELF_PUT_WORD (htab, output_bfd,
4541 (plt->output_section->vma
4542 + plt->output_offset + h->plt.offset),
4543 htab->elf.sgot->contents
4544 + (h->got.offset & ~(bfd_vma) 1));
4545 return TRUE;
4546 }
0e1862bb 4547 else if (bfd_link_pic (info)
d0c9aeb3 4548 && SYMBOL_REFERENCES_LOCAL (info, h))
22b75d0a
DM		 4549 {
4550 asection *sec = h->root.u.def.section;
d0c9aeb3
DM		 4551 if (h->type == STT_GNU_IFUNC)
4552 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4553 else
4554 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
22b75d0a
DM		 4555 rela.r_addend = (h->root.u.def.value
4556 + sec->output_section->vma
4557 + sec->output_offset);
4558 }
4559 else
4560 {
4561 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4562 rela.r_addend = 0;
4563 }
4564
4565 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4566 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
39817122 4567 sparc_elf_append_rela (output_bfd, srela, &rela);
22b75d0a
DM		 4568 }
4569
4570 if (h->needs_copy)
4571 {
4572 asection *s;
4573 Elf_Internal_Rela rela;
4574
4575 /* This symbols needs a copy reloc. Set it up. */
4576 BFD_ASSERT (h->dynindx != -1);
4577
22b75d0a
DM		 4578 rela.r_offset = (h->root.u.def.value
4579 + h->root.u.def.section->output_section->vma
4580 + h->root.u.def.section->output_offset);
4581 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4582 rela.r_addend = 0;
afbf7e8e 4583 if (h->root.u.def.section == htab->elf.sdynrelro)
5474d94f
AM		 4584 s = htab->elf.sreldynrelro;
4585 else
4586 s = htab->elf.srelbss;
39817122 4587 sparc_elf_append_rela (output_bfd, s, &rela);
22b75d0a
DM		 4588 }
4589
910600e9
RS		 4590 /* Mark some specially defined symbols as absolute. On VxWorks,
4591 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4592 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
d0c9aeb3 4593 if (sym != NULL
9637f6ef 4594 && (h == htab->elf.hdynamic
d0c9aeb3
DM		 4595 || (!htab->is_vxworks
4596 && (h == htab->elf.hgot || h == htab->elf.hplt))))
22b75d0a
DM		 4597 sym->st_shndx = SHN_ABS;
4598
4599 return TRUE;
4600}
4601
4602/* Finish up the dynamic sections. */
4603
22b75d0a 4604static bfd_boolean
39817122
RS		 4605sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4606 bfd *dynobj, asection *sdyn,
4607 asection *splt ATTRIBUTE_UNUSED)
22b75d0a 4608{
910600e9 4609 struct _bfd_sparc_elf_link_hash_table *htab;
39817122
RS		 4610 const struct elf_backend_data *bed;
4611 bfd_byte *dyncon, *dynconend;
4612 size_t dynsize;
4613 int stt_regidx = -1;
4614 bfd_boolean abi_64_p;
22b75d0a 4615
910600e9 4616 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4617 BFD_ASSERT (htab != NULL);
39817122
RS		 4618 bed = get_elf_backend_data (output_bfd);
4619 dynsize = bed->s->sizeof_dyn;
4620 dynconend = sdyn->contents + sdyn->size;
4621 abi_64_p = ABI_64_P (output_bfd);
4622 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
22b75d0a
DM		 4623 {
4624 Elf_Internal_Dyn dyn;
22b75d0a
DM		 4625 bfd_boolean size;
4626
39817122 4627 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
22b75d0a 4628
64f52338 4629 if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
22b75d0a 4630 {
910600e9
RS		 4631 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4632 not to the start of the PLT. */
72fbc6e5 4633 if (htab->elf.sgotplt)
910600e9 4634 {
72fbc6e5
DM		 4635 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4636 + htab->elf.sgotplt->output_offset);
39817122 4637 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
910600e9
RS		 4638 }
4639 }
7a2b07ff
NS		 4640 else if (htab->is_vxworks
4641 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4642 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
39817122
RS		 4643 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4644 {
4645 if (stt_regidx == -1)
4646 {
4647 stt_regidx =
4648 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4649 if (stt_regidx == -1)
4650 return FALSE;
4651 }
4652 dyn.d_un.d_val = stt_regidx++;
4653 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4654 }
910600e9
RS		 4655 else
4656 {
ce558b89
AM		 4657 asection *s;
4658
910600e9
RS		 4659 switch (dyn.d_tag)
4660 {
ce558b89
AM		 4661 case DT_PLTGOT:
4662 s = htab->elf.splt;
4663 size = FALSE;
4664 break;
4665 case DT_PLTRELSZ:
4666 s = htab->elf.srelplt;
4667 size = TRUE;
4668 break;
4669 case DT_JMPREL:
4670 s = htab->elf.srelplt;
4671 size = FALSE;
4672 break;
4673 default:
4674 continue;
910600e9 4675 }
22b75d0a 4676
ce558b89
AM		 4677 if (s == NULL)
4678 dyn.d_un.d_val = 0;
4679 else
22b75d0a 4680 {
ce558b89
AM		 4681 if (!size)
4682 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
22b75d0a 4683 else
ce558b89 4684 dyn.d_un.d_val = s->size;
22b75d0a 4685 }
ce558b89 4686 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
22b75d0a
DM		 4687 }
4688 }
4689 return TRUE;
4690}
4691
910600e9
RS		 4692/* Install the first PLT entry in a VxWorks executable and make sure that
4693 .rela.plt.unloaded relocations have the correct symbol indexes. */
4694
4695static void
4696sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4697{
4698 struct _bfd_sparc_elf_link_hash_table *htab;
4699 Elf_Internal_Rela rela;
4700 bfd_vma got_base;
4701 bfd_byte *loc;
4702
4703 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4704 BFD_ASSERT (htab != NULL);
910600e9
RS		 4705
4706 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4707 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4708 + htab->elf.hgot->root.u.def.section->output_offset
4709 + htab->elf.hgot->root.u.def.value);
4710
4711 /* Install the initial PLT entry. */
4712 bfd_put_32 (output_bfd,
4713 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
72fbc6e5 4714 htab->elf.splt->contents);
910600e9
RS		 4715 bfd_put_32 (output_bfd,
4716 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
72fbc6e5 4717 htab->elf.splt->contents + 4);
910600e9
RS		 4718 bfd_put_32 (output_bfd,
4719 sparc_vxworks_exec_plt0_entry[2],
72fbc6e5 4720 htab->elf.splt->contents + 8);
910600e9
RS		 4721 bfd_put_32 (output_bfd,
4722 sparc_vxworks_exec_plt0_entry[3],
72fbc6e5 4723 htab->elf.splt->contents + 12);
910600e9
RS		 4724 bfd_put_32 (output_bfd,
4725 sparc_vxworks_exec_plt0_entry[4],
72fbc6e5 4726 htab->elf.splt->contents + 16);
910600e9
RS		 4727
4728 loc = htab->srelplt2->contents;
4729
4730 /* Add an unloaded relocation for the initial entry's "sethi". */
72fbc6e5
DM		 4731 rela.r_offset = (htab->elf.splt->output_section->vma
4732 + htab->elf.splt->output_offset);
910600e9
RS		 4733 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4734 rela.r_addend = 8;
4735 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4736 loc += sizeof (Elf32_External_Rela);
4737
4738 /* Likewise the following "or". */
4739 rela.r_offset += 4;
4740 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4741 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4742 loc += sizeof (Elf32_External_Rela);
4743
4744 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4745 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4746 in which symbols were output. */
4747 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4748 {
4749 Elf_Internal_Rela rel;
4750
4751 /* The entry's initial "sethi" (against _G_O_T_). */
4752 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4753 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4754 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4755 loc += sizeof (Elf32_External_Rela);
4756
4757 /* The following "or" (also against _G_O_T_). */
4758 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4759 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4760 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4761 loc += sizeof (Elf32_External_Rela);
4762
4763 /* The .got.plt entry (against _P_L_T_). */
4764 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4765 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4766 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4767 loc += sizeof (Elf32_External_Rela);
4768 }
4769}
4770
4771/* Install the first PLT entry in a VxWorks shared object. */
4772
4773static void
4774sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4775{
4776 struct _bfd_sparc_elf_link_hash_table *htab;
4777 unsigned int i;
4778
4779 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4780 BFD_ASSERT (htab != NULL);
4781
910600e9
RS		 4782 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4783 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
72fbc6e5 4784 htab->elf.splt->contents + i * 4);
910600e9
RS		 4785}
4786
d0c9aeb3
DM		 4787/* Finish up local dynamic symbol handling. We set the contents of
4788 various dynamic sections here. */
4789
4790static bfd_boolean
4791finish_local_dynamic_symbol (void **slot, void *inf)
4792{
4793 struct elf_link_hash_entry *h
4794 = (struct elf_link_hash_entry *) *slot;
4795 struct bfd_link_info *info
68ffbac6 4796 = (struct bfd_link_info *) inf;
d0c9aeb3
DM		 4797
4798 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4799 h, NULL);
4800}
4801
bb1dd176
QZ		 4802/* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4803 here since undefined weak symbol may not be dynamic and may not be
4804 called for _bfd_sparc_elf_finish_dynamic_symbol. */
4805
4806static bfd_boolean
4807pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
4808 void *inf)
4809{
4810 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4811 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4812
4813 if (h->root.type != bfd_link_hash_undefweak
4814 || h->dynindx != -1)
4815 return TRUE;
4816
4817 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4818 h, NULL);
4819}
4820
22b75d0a
DM		 4821bfd_boolean
4822_bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4823{
4824 bfd *dynobj;
4825 asection *sdyn;
4826 struct _bfd_sparc_elf_link_hash_table *htab;
4827
4828 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4829 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 4830 dynobj = htab->elf.dynobj;
4831
3d4d4302 4832 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
22b75d0a
DM		 4833
4834 if (elf_hash_table (info)->dynamic_sections_created)
4835 {
4836 asection *splt;
22b75d0a 4837
3d4d4302 4838 splt = htab->elf.splt;
22b75d0a
DM		 4839 BFD_ASSERT (splt != NULL && sdyn != NULL);
4840
39817122
RS		 4841 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4842 return FALSE;
22b75d0a
DM		 4843
4844 /* Initialize the contents of the .plt section. */
4845 if (splt->size > 0)
4846 {
910600e9
RS		 4847 if (htab->is_vxworks)
4848 {
0e1862bb 4849 if (bfd_link_pic (info))
910600e9
RS		 4850 sparc_vxworks_finish_shared_plt (output_bfd, info);
4851 else
4852 sparc_vxworks_finish_exec_plt (output_bfd, info);
4853 }
22b75d0a
DM		 4854 else
4855 {
910600e9
RS		 4856 memset (splt->contents, 0, htab->plt_header_size);
4857 if (!ABI_64_P (output_bfd))
4858 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4859 splt->contents + splt->size - 4);
22b75d0a
DM		 4860 }
4861 }
4862
387f8054
MR		 4863 if (elf_section_data (splt->output_section) != NULL)
4864 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4865 = ((htab->is_vxworks || !ABI_64_P (output_bfd))
4866 ? 0 : htab->plt_entry_size);
22b75d0a
DM		 4867 }
4868
4869 /* Set the first entry in the global offset table to the address of
4870 the dynamic section. */
72fbc6e5 4871 if (htab->elf.sgot && htab->elf.sgot->size > 0)
22b75d0a
DM		 4872 {
4873 bfd_vma val = (sdyn ?
4874 sdyn->output_section->vma + sdyn->output_offset :
4875 0);
4876
72fbc6e5 4877 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
22b75d0a
DM		 4878 }
4879
72fbc6e5
DM		 4880 if (htab->elf.sgot)
4881 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
22b75d0a
DM		 4882 SPARC_ELF_WORD_BYTES (htab);
4883
d0c9aeb3
DM		 4884 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4885 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4886
bb1dd176
QZ		 4887 /* Fill PLT entries for undefined weak symbols in PIE. */
4888 if (bfd_link_pie (info))
4889 bfd_hash_traverse (&info->hash->table,
4890 pie_finish_undefweak_symbol,
4891 info);
22b75d0a
DM		 4892 return TRUE;
4893}
4894
4895\f
4896/* Set the right machine number for a SPARC ELF file. */
4897
4898bfd_boolean
4899_bfd_sparc_elf_object_p (bfd *abfd)
4900{
4f26fb3a
JM		 4901 obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
4902 obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
4903 obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
4904
4905 unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
4906 unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
4907 | ELF_SPARC_HWCAP_VIS3
4908 | ELF_SPARC_HWCAP_HPC);
4909 unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
4910 | ELF_SPARC_HWCAP_DES
4911 | ELF_SPARC_HWCAP_KASUMI
4912 | ELF_SPARC_HWCAP_CAMELLIA
4913 | ELF_SPARC_HWCAP_MD5
4914 | ELF_SPARC_HWCAP_SHA1
4915 | ELF_SPARC_HWCAP_SHA256
4916 | ELF_SPARC_HWCAP_SHA512
4917 | ELF_SPARC_HWCAP_MPMUL
4918 | ELF_SPARC_HWCAP_MONT
4919 | ELF_SPARC_HWCAP_CRC32C
4920 | ELF_SPARC_HWCAP_CBCOND
4921 | ELF_SPARC_HWCAP_PAUSE);
4922 unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
4923 | ELF_SPARC_HWCAP_IMA);
4924 unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
4925 | ELF_SPARC_HWCAP2_MWAIT
4926 | ELF_SPARC_HWCAP2_XMPMUL
4927 | ELF_SPARC_HWCAP2_XMONT);
64517994
JM		 4928 unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6
4929 | ELF_SPARC_HWCAP2_ONADDSUB
4930 | ELF_SPARC_HWCAP2_ONMUL
4931 | ELF_SPARC_HWCAP2_ONDIV
4932 | ELF_SPARC_HWCAP2_DICTUNP
4933 | ELF_SPARC_HWCAP2_FPCMPSHL
4934 | ELF_SPARC_HWCAP2_RLE
4935 | ELF_SPARC_HWCAP2_SHA3);
4f26fb3a 4936
22b75d0a
DM		 4937 if (ABI_64_P (abfd))
4938 {
4939 unsigned long mach = bfd_mach_sparc_v9;
4940
64517994
JM		 4941 if (hwcaps2->i & m8_hwcaps2_mask)
4942 mach = bfd_mach_sparc_v9m8;
4943 else if (hwcaps2->i & v9m_hwcaps2_mask)
4f26fb3a
JM		 4944 mach = bfd_mach_sparc_v9m;
4945 else if (hwcaps->i & v9v_hwcaps_mask)
4946 mach = bfd_mach_sparc_v9v;
4947 else if (hwcaps->i & v9e_hwcaps_mask)
4948 mach = bfd_mach_sparc_v9e;
4949 else if (hwcaps->i & v9d_hwcaps_mask)
4950 mach = bfd_mach_sparc_v9d;
4951 else if (hwcaps->i & v9c_hwcaps_mask)
4952 mach = bfd_mach_sparc_v9c;
4953 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
22b75d0a
DM		 4954 mach = bfd_mach_sparc_v9b;
4955 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4956 mach = bfd_mach_sparc_v9a;
4957 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4958 }
4959 else
4960 {
4961 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4962 {
64517994
JM		 4963 if (hwcaps2->i & m8_hwcaps2_mask)
4964 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4965 bfd_mach_sparc_v8plusm8);
4966 else if (hwcaps2->i & v9m_hwcaps2_mask)
4f26fb3a
JM		 4967 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4968 bfd_mach_sparc_v8plusm);
4969 else if (hwcaps->i & v9v_hwcaps_mask)
4970 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4971 bfd_mach_sparc_v8plusv);
4972 else if (hwcaps->i & v9e_hwcaps_mask)
4973 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4974 bfd_mach_sparc_v8pluse);
4975 else if (hwcaps->i & v9d_hwcaps_mask)
4976 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4977 bfd_mach_sparc_v8plusd);
4978 else if (hwcaps->i & v9c_hwcaps_mask)
4979 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4980 bfd_mach_sparc_v8plusc);
4981 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
22b75d0a
DM		 4982 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4983 bfd_mach_sparc_v8plusb);
4984 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4985 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4986 bfd_mach_sparc_v8plusa);
4987 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4988 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4989 bfd_mach_sparc_v8plus);
4990 else
4991 return FALSE;
4992 }
4993 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4994 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4995 bfd_mach_sparc_sparclite_le);
4996 else
4997 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4998 }
4999}
5000
5001/* Return address for Ith PLT stub in section PLT, for relocation REL
5002 or (bfd_vma) -1 if it should not be included. */
5003
5004bfd_vma
5005_bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
5006{
5007 if (ABI_64_P (plt->owner))
5008 {
5009 bfd_vma j;
5010
5011 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
5012 if (i < PLT64_LARGE_THRESHOLD)
5013 return plt->vma + i * PLT64_ENTRY_SIZE;
5014
5015 j = (i - PLT64_LARGE_THRESHOLD) % 160;
5016 i -= j;
5017 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
5018 }
5019 else
5020 return rel->address;
5021}
9e8c70f9
DM		 5022
5023/* Merge backend specific data from an object file to the output
5024 object file when linking. */
5025
5026bfd_boolean
50e03d47 5027_bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
9e8c70f9 5028{
50e03d47 5029 bfd *obfd = info->output_bfd;
9e8c70f9
DM		 5030 obj_attribute *in_attr, *in_attrs;
5031 obj_attribute *out_attr, *out_attrs;
5032
5033 if (!elf_known_obj_attributes_proc (obfd)[0].i)
5034 {
5035 /* This is the first object. Copy the attributes. */
5036 _bfd_elf_copy_obj_attributes (ibfd, obfd);
5037
5038 /* Use the Tag_null value to indicate the attributes have been
5039 initialized. */
5040 elf_known_obj_attributes_proc (obfd)[0].i = 1;
5041
5042 return TRUE;
5043 }
5044
5045 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
5046 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
5047
5048 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
5049 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
1b786873 5050
3d68f91c
JM		 5051 out_attr->i |= in_attr->i;
5052 out_attr->type = 1;
9e8c70f9 5053
3d68f91c
JM		 5054 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
5055 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
1b786873 5056
9e8c70f9 5057 out_attr->i |= in_attr->i;
209be8d2 5058 out_attr->type = 1;
9e8c70f9
DM		 5059
5060 /* Merge Tag_compatibility attributes and any common GNU ones. */
50e03d47 5061 _bfd_elf_merge_object_attributes (ibfd, info);
9e8c70f9
DM		 5062
5063 return TRUE;
5064}
GDB Binutils - Deliverables
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