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[thirdparty/binutils-gdb.git] / bfd / elfxx-sparc.c
CommitLineData
22b75d0a 1/* SPARC-specific support for ELF
6f2750fe 2 Copyright (C) 2005-2016 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
686/* SPARC ELF linker hash entry. */
687
688struct _bfd_sparc_elf_link_hash_entry
689{
690 struct elf_link_hash_entry elf;
691
692 /* Track dynamic relocs copied for this symbol. */
693 struct _bfd_sparc_elf_dyn_relocs *dyn_relocs;
694
695#define GOT_UNKNOWN 0
696#define GOT_NORMAL 1
697#define GOT_TLS_GD 2
698#define GOT_TLS_IE 3
699 unsigned char tls_type;
700};
701
702#define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
703
704struct _bfd_sparc_elf_obj_tdata
705{
706 struct elf_obj_tdata root;
707
708 /* tls_type for each local got entry. */
709 char *local_got_tls_type;
710
711 /* TRUE if TLS GD relocs has been seen for this object. */
712 bfd_boolean has_tlsgd;
713};
714
715#define _bfd_sparc_elf_tdata(abfd) \
716 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
717
718#define _bfd_sparc_elf_local_got_tls_type(abfd) \
719 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
720
0ffa91dd
NC		 721#define is_sparc_elf(bfd) \
722 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
723 && elf_tdata (bfd) != NULL \
4dfe6ac6 724 && elf_object_id (bfd) == SPARC_ELF_DATA)
0ffa91dd 725
22b75d0a
DM		 726bfd_boolean
727_bfd_sparc_elf_mkobject (bfd *abfd)
728{
0ffa91dd 729 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
4dfe6ac6 730 SPARC_ELF_DATA);
22b75d0a
DM		 731}
732
733static void
91d6fa6a 734sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 735{
91d6fa6a 736 bfd_put_32 (abfd, val, ptr);
22b75d0a
DM		 737}
738
739static void
91d6fa6a 740sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 741{
91d6fa6a 742 bfd_put_64 (abfd, val, ptr);
22b75d0a
DM		 743}
744
745static void
39817122 746sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
22b75d0a 747{
39817122
RS		 748 const struct elf_backend_data *bed;
749 bfd_byte *loc;
22b75d0a 750
39817122
RS		 751 bed = get_elf_backend_data (abfd);
752 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
753 bed->s->swap_reloca_out (abfd, rel, loc);
22b75d0a
DM		 754}
755
756static bfd_vma
e459dc7b 757sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 758 bfd_vma rel_index ATTRIBUTE_UNUSED,
e459dc7b 759 bfd_vma type ATTRIBUTE_UNUSED)
22b75d0a 760{
91d6fa6a 761 return ELF64_R_INFO (rel_index,
22b75d0a
DM		 762 (in_rel ?
763 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
764 type) : type));
765}
766
767static bfd_vma
768sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 769 bfd_vma rel_index, bfd_vma type)
22b75d0a 770{
91d6fa6a 771 return ELF32_R_INFO (rel_index, type);
22b75d0a
DM		 772}
773
774static bfd_vma
775sparc_elf_r_symndx_64 (bfd_vma r_info)
776{
e8be8da4
DM		 777 bfd_vma r_symndx = ELF32_R_SYM (r_info);
778 return (r_symndx >> 24);
22b75d0a
DM		 779}
780
781static bfd_vma
782sparc_elf_r_symndx_32 (bfd_vma r_info)
783{
784 return ELF32_R_SYM (r_info);
785}
786
787/* PLT/GOT stuff */
788
789#define PLT32_ENTRY_SIZE 12
790#define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
791
792/* The first four entries in a 32-bit procedure linkage table are reserved,
793 and the initial contents are unimportant (we zero them out).
794 Subsequent entries look like this. See the SVR4 ABI SPARC
795 supplement to see how this works. */
796
797/* sethi %hi(.-.plt0),%g1. We fill in the address later. */
798#define PLT32_ENTRY_WORD0 0x03000000
799/* b,a .plt0. We fill in the offset later. */
800#define PLT32_ENTRY_WORD1 0x30800000
801/* nop. */
802#define PLT32_ENTRY_WORD2 SPARC_NOP
803
804static int
805sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
806 bfd_vma max ATTRIBUTE_UNUSED,
807 bfd_vma *r_offset)
808{
809 bfd_put_32 (output_bfd,
810 PLT32_ENTRY_WORD0 + offset,
811 splt->contents + offset);
812 bfd_put_32 (output_bfd,
813 (PLT32_ENTRY_WORD1
814 + (((- (offset + 4)) >> 2) & 0x3fffff)),
815 splt->contents + offset + 4);
816 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
817 splt->contents + offset + 8);
818
819 *r_offset = offset;
820
821 return offset / PLT32_ENTRY_SIZE - 4;
822}
823
824/* Both the headers and the entries are icache aligned. */
825#define PLT64_ENTRY_SIZE 32
826#define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
827#define PLT64_LARGE_THRESHOLD 32768
828
829static int
830sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
831 bfd_vma max, bfd_vma *r_offset)
832{
833 unsigned char *entry = splt->contents + offset;
834 const unsigned int nop = SPARC_NOP;
91d6fa6a 835 int plt_index;
22b75d0a
DM		 836
837 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
838 {
839 unsigned int sethi, ba;
840
841 *r_offset = offset;
842
91d6fa6a 843 plt_index = (offset / PLT64_ENTRY_SIZE);
22b75d0a 844
91d6fa6a 845 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
22b75d0a
DM		 846 ba = 0x30680000
847 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
848
849 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
850 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
851 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
852 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
853 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
854 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
855 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
856 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
857 }
858 else
859 {
860 unsigned char *ptr;
861 unsigned int ldx;
862 int block, last_block, ofs, last_ofs, chunks_this_block;
863 const int insn_chunk_size = (6 * 4);
864 const int ptr_chunk_size = (1 * 8);
865 const int entries_per_block = 160;
866 const int block_size = entries_per_block * (insn_chunk_size
867 + ptr_chunk_size);
868
869 /* Entries 32768 and higher are grouped into blocks of 160.
870 The blocks are further subdivided into 160 sequences of
871 6 instructions and 160 pointers. If a block does not require
872 the full 160 entries, let's say it requires N, then there
873 will be N sequences of 6 instructions and N pointers. */
874
875 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
876 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
877
878 block = offset / block_size;
879 last_block = max / block_size;
880 if (block != last_block)
881 {
882 chunks_this_block = 160;
883 }
884 else
885 {
886 last_ofs = max % block_size;
887 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
888 }
889
890 ofs = offset % block_size;
891
91d6fa6a 892 plt_index = (PLT64_LARGE_THRESHOLD +
22b75d0a
DM		 893 (block * 160) +
894 (ofs / insn_chunk_size));
895
896 ptr = splt->contents
897 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
898 + (block * block_size)
899 + (chunks_this_block * insn_chunk_size)
900 + (ofs / insn_chunk_size) * ptr_chunk_size;
901
902 *r_offset = (bfd_vma) (ptr - splt->contents);
903
904 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
905
906 /* mov %o7,%g5
907 call .+8
908 nop
909 ldx [%o7+P],%g1
910 jmpl %o7+%g1,%g1
911 mov %g5,%o7 */
912 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
913 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
914 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
915 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
916 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
917 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
918
919 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
920 }
921
91d6fa6a 922 return plt_index - 4;
22b75d0a
DM		 923}
924
910600e9
RS		 925/* The format of the first PLT entry in a VxWorks executable. */
926static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
927 {
928 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
929 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
930 0xc4008000, /* ld [ %g2 ], %g2 */
931 0x81c08000, /* jmp %g2 */
932 0x01000000 /* nop */
933 };
934
935/* The format of subsequent PLT entries. */
936static const bfd_vma sparc_vxworks_exec_plt_entry[] =
937 {
938 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
939 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
940 0xc2004000, /* ld [ %g1 ], %g1 */
941 0x81c04000, /* jmp %g1 */
942 0x01000000, /* nop */
943 0x03000000, /* sethi %hi(f@pltindex), %g1 */
944 0x10800000, /* b _PLT_resolve */
945 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
946 };
947
948/* The format of the first PLT entry in a VxWorks shared object. */
949static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
950 {
951 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
952 0x81c08000, /* jmp %g2 */
953 0x01000000 /* nop */
954 };
955
956/* The format of subsequent PLT entries. */
957static const bfd_vma sparc_vxworks_shared_plt_entry[] =
958 {
959 0x03000000, /* sethi %hi(f@got), %g1 */
960 0x82106000, /* or %g1, %lo(f@got), %g1 */
961 0xc205c001, /* ld [ %l7 + %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
22b75d0a
DM		 969#define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
970 htab->put_word(bfd, val, ptr)
971
22b75d0a
DM		 972#define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
973 htab->r_info(in_rel, index, type)
974
975#define SPARC_ELF_R_SYMNDX(htab, r_info) \
976 htab->r_symndx(r_info)
977
978#define SPARC_ELF_WORD_BYTES(htab) \
979 htab->bytes_per_word
980
981#define SPARC_ELF_RELA_BYTES(htab) \
982 htab->bytes_per_rela
983
984#define SPARC_ELF_DTPOFF_RELOC(htab) \
985 htab->dtpoff_reloc
986
987#define SPARC_ELF_DTPMOD_RELOC(htab) \
988 htab->dtpmod_reloc
989
990#define SPARC_ELF_TPOFF_RELOC(htab) \
991 htab->tpoff_reloc
992
993#define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
994 htab->build_plt_entry (obfd, splt, off, max, r_off)
995
996/* Create an entry in an SPARC ELF linker hash table. */
997
998static struct bfd_hash_entry *
999link_hash_newfunc (struct bfd_hash_entry *entry,
1000 struct bfd_hash_table *table, const char *string)
1001{
1002 /* Allocate the structure if it has not already been allocated by a
1003 subclass. */
1004 if (entry == NULL)
1005 {
1006 entry = bfd_hash_allocate (table,
1007 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1008 if (entry == NULL)
1009 return entry;
1010 }
1011
1012 /* Call the allocation method of the superclass. */
1013 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1014 if (entry != NULL)
1015 {
1016 struct _bfd_sparc_elf_link_hash_entry *eh;
1017
1018 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
1019 eh->dyn_relocs = NULL;
1020 eh->tls_type = GOT_UNKNOWN;
1021 }
1022
1023 return entry;
1024}
1025
1026/* The name of the dynamic interpreter. This is put in the .interp
1027 section. */
1028
1029#define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1030#define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1031
d0c9aeb3
DM		 1032/* Compute a hash of a local hash entry. We use elf_link_hash_entry
1033 for local symbol so that we can handle local STT_GNU_IFUNC symbols
1034 as global symbol. We reuse indx and dynstr_index for local symbol
1035 hash since they aren't used by global symbols in this backend. */
1036
1037static hashval_t
1038elf_sparc_local_htab_hash (const void *ptr)
1039{
1040 struct elf_link_hash_entry *h
1041 = (struct elf_link_hash_entry *) ptr;
1042 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1043}
1044
1045/* Compare local hash entries. */
1046
1047static int
1048elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1049{
1050 struct elf_link_hash_entry *h1
1051 = (struct elf_link_hash_entry *) ptr1;
1052 struct elf_link_hash_entry *h2
1053 = (struct elf_link_hash_entry *) ptr2;
1054
1055 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1056}
1057
1058/* Find and/or create a hash entry for local symbol. */
1059
1060static struct elf_link_hash_entry *
1061elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1062 bfd *abfd, const Elf_Internal_Rela *rel,
1063 bfd_boolean create)
1064{
1065 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1066 asection *sec = abfd->sections;
1067 unsigned long r_symndx;
1068 hashval_t h;
1069 void **slot;
1070
1071 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1072 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1073
1074 e.elf.indx = sec->id;
1075 e.elf.dynstr_index = r_symndx;
1076 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1077 create ? INSERT : NO_INSERT);
1078
1079 if (!slot)
1080 return NULL;
1081
1082 if (*slot)
1083 {
1084 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1085 return &ret->elf;
1086 }
1087
1088 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1089 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1090 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1091 if (ret)
1092 {
1093 memset (ret, 0, sizeof (*ret));
1094 ret->elf.indx = sec->id;
1095 ret->elf.dynstr_index = r_symndx;
1096 ret->elf.dynindx = -1;
1097 ret->elf.plt.offset = (bfd_vma) -1;
1098 ret->elf.got.offset = (bfd_vma) -1;
1099 *slot = ret;
1100 }
1101 return &ret->elf;
1102}
1103
68faa637
AM		 1104/* Destroy a SPARC ELF linker hash table. */
1105
d495ab0d
AM		 1106static void
1107_bfd_sparc_elf_link_hash_table_free (bfd *obfd)
68faa637
AM		 1108{
1109 struct _bfd_sparc_elf_link_hash_table *htab
d495ab0d 1110 = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
68faa637
AM		 1111
1112 if (htab->loc_hash_table)
1113 htab_delete (htab->loc_hash_table);
1114 if (htab->loc_hash_memory)
1115 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
d495ab0d 1116 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM		 1117}
1118
22b75d0a
DM		 1119/* Create a SPARC ELF linker hash table. */
1120
1121struct bfd_link_hash_table *
1122_bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1123{
1124 struct _bfd_sparc_elf_link_hash_table *ret;
1125 bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1126
1127 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1128 if (ret == NULL)
1129 return NULL;
1130
1131 if (ABI_64_P (abfd))
1132 {
1133 ret->put_word = sparc_put_word_64;
22b75d0a
DM		 1134 ret->r_info = sparc_elf_r_info_64;
1135 ret->r_symndx = sparc_elf_r_symndx_64;
22b75d0a
DM		 1136 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1137 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1138 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1139 ret->word_align_power = 3;
1140 ret->align_power_max = 4;
1141 ret->bytes_per_word = 8;
1142 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
c2e70a82 1143 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
22b75d0a 1144 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1145
1146 ret->build_plt_entry = sparc64_plt_entry_build;
1147 ret->plt_header_size = PLT64_HEADER_SIZE;
1148 ret->plt_entry_size = PLT64_ENTRY_SIZE;
22b75d0a
DM		 1149 }
1150 else
1151 {
1152 ret->put_word = sparc_put_word_32;
22b75d0a
DM		 1153 ret->r_info = sparc_elf_r_info_32;
1154 ret->r_symndx = sparc_elf_r_symndx_32;
22b75d0a
DM		 1155 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1156 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1157 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1158 ret->word_align_power = 2;
1159 ret->align_power_max = 3;
1160 ret->bytes_per_word = 4;
1161 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
c2e70a82 1162 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
22b75d0a 1163 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1164
1165 ret->build_plt_entry = sparc32_plt_entry_build;
1166 ret->plt_header_size = PLT32_HEADER_SIZE;
1167 ret->plt_entry_size = PLT32_ENTRY_SIZE;
22b75d0a
DM		 1168 }
1169
66eb6687 1170 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC		 1171 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1172 SPARC_ELF_DATA))
22b75d0a
DM		 1173 {
1174 free (ret);
1175 return NULL;
1176 }
1177
d0c9aeb3
DM		 1178 ret->loc_hash_table = htab_try_create (1024,
1179 elf_sparc_local_htab_hash,
1180 elf_sparc_local_htab_eq,
1181 NULL);
1182 ret->loc_hash_memory = objalloc_create ();
1183 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1184 {
d495ab0d 1185 _bfd_sparc_elf_link_hash_table_free (abfd);
d0c9aeb3
DM		 1186 return NULL;
1187 }
d495ab0d 1188 ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
d0c9aeb3 1189
22b75d0a
DM		 1190 return &ret->elf.root;
1191}
1192
22b75d0a
DM		 1193/* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1194 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1195 hash table. */
1196
1197bfd_boolean
1198_bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1199 struct bfd_link_info *info)
1200{
1201 struct _bfd_sparc_elf_link_hash_table *htab;
1202
1203 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 1204 BFD_ASSERT (htab != NULL);
1205
22b75d0a
DM		 1206 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1207 return FALSE;
1208
910600e9
RS		 1209 if (htab->is_vxworks)
1210 {
1211 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1212 return FALSE;
0e1862bb 1213 if (bfd_link_pic (info))
910600e9
RS		 1214 {
1215 htab->plt_header_size
1216 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1217 htab->plt_entry_size
1218 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1219 }
1220 else
1221 {
1222 htab->plt_header_size
1223 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1224 htab->plt_entry_size
1225 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1226 }
1227 }
910600e9 1228
9d19e4fd
AM		 1229 if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1230 || (!bfd_link_pic (info) && !htab->elf.srelbss))
22b75d0a
DM		 1231 abort ();
1232
1233 return TRUE;
1234}
1235
d0c9aeb3
DM		 1236static bfd_boolean
1237create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1238{
1239 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1240 struct elf_link_hash_table *htab = elf_hash_table (info);
1241 flagword flags, pltflags;
1242 asection *s;
1243
1244 if (htab->irelifunc != NULL || htab->iplt != NULL)
1245 return TRUE;
1246
1247 flags = bed->dynamic_sec_flags;
1248 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1249
1250 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1251 if (s == NULL
1252 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1253 return FALSE;
1254 htab->iplt = s;
1255
1256 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1257 flags | SEC_READONLY);
1258 if (s == NULL
1259 || ! bfd_set_section_alignment (abfd, s,
1260 bed->s->log_file_align))
1261 return FALSE;
1262 htab->irelplt = s;
1263
1264 return TRUE;
1265}
1266
22b75d0a
DM		 1267/* Copy the extra info we tack onto an elf_link_hash_entry. */
1268
1269void
fcfa13d2 1270_bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
22b75d0a
DM		 1271 struct elf_link_hash_entry *dir,
1272 struct elf_link_hash_entry *ind)
1273{
1274 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1275
1276 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1277 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1278
1279 if (eind->dyn_relocs != NULL)
1280 {
1281 if (edir->dyn_relocs != NULL)
1282 {
1283 struct _bfd_sparc_elf_dyn_relocs **pp;
1284 struct _bfd_sparc_elf_dyn_relocs *p;
1285
fcfa13d2 1286 /* Add reloc counts against the indirect sym to the direct sym
22b75d0a
DM		 1287 list. Merge any entries against the same section. */
1288 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1289 {
1290 struct _bfd_sparc_elf_dyn_relocs *q;
1291
1292 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1293 if (q->sec == p->sec)
1294 {
1295 q->pc_count += p->pc_count;
1296 q->count += p->count;
1297 *pp = p->next;
1298 break;
1299 }
1300 if (q == NULL)
1301 pp = &p->next;
1302 }
1303 *pp = edir->dyn_relocs;
1304 }
1305
1306 edir->dyn_relocs = eind->dyn_relocs;
1307 eind->dyn_relocs = NULL;
1308 }
1309
1310 if (ind->root.type == bfd_link_hash_indirect
1311 && dir->got.refcount <= 0)
1312 {
1313 edir->tls_type = eind->tls_type;
1314 eind->tls_type = GOT_UNKNOWN;
1315 }
fcfa13d2 1316 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
22b75d0a
DM		 1317}
1318
1319static int
1320sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1321 int r_type, int is_local)
1322{
1323 if (! ABI_64_P (abfd)
1324 && r_type == R_SPARC_TLS_GD_HI22
1325 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1326 r_type = R_SPARC_REV32;
1327
0e1862bb 1328 if (bfd_link_pic (info))
22b75d0a
DM		 1329 return r_type;
1330
1331 switch (r_type)
1332 {
1333 case R_SPARC_TLS_GD_HI22:
1334 if (is_local)
1335 return R_SPARC_TLS_LE_HIX22;
1336 return R_SPARC_TLS_IE_HI22;
1337 case R_SPARC_TLS_GD_LO10:
1338 if (is_local)
1339 return R_SPARC_TLS_LE_LOX10;
1340 return R_SPARC_TLS_IE_LO10;
1341 case R_SPARC_TLS_IE_HI22:
1342 if (is_local)
1343 return R_SPARC_TLS_LE_HIX22;
1344 return r_type;
1345 case R_SPARC_TLS_IE_LO10:
1346 if (is_local)
1347 return R_SPARC_TLS_LE_LOX10;
1348 return r_type;
1349 case R_SPARC_TLS_LDM_HI22:
1350 return R_SPARC_TLS_LE_HIX22;
1351 case R_SPARC_TLS_LDM_LO10:
1352 return R_SPARC_TLS_LE_LOX10;
1353 }
1354
1355 return r_type;
1356}
1357\f
1358/* Look through the relocs for a section during the first phase, and
1359 allocate space in the global offset table or procedure linkage
1360 table. */
1361
1362bfd_boolean
1363_bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1364 asection *sec, const Elf_Internal_Rela *relocs)
1365{
1366 struct _bfd_sparc_elf_link_hash_table *htab;
1367 Elf_Internal_Shdr *symtab_hdr;
1368 struct elf_link_hash_entry **sym_hashes;
22b75d0a
DM		 1369 const Elf_Internal_Rela *rel;
1370 const Elf_Internal_Rela *rel_end;
1371 asection *sreloc;
1372 int num_relocs;
1373 bfd_boolean checked_tlsgd = FALSE;
1374
0e1862bb 1375 if (bfd_link_relocatable (info))
22b75d0a
DM		 1376 return TRUE;
1377
1378 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1379 BFD_ASSERT (htab != NULL);
0ffa91dd 1380 symtab_hdr = &elf_symtab_hdr (abfd);
22b75d0a 1381 sym_hashes = elf_sym_hashes (abfd);
22b75d0a
DM		 1382
1383 sreloc = NULL;
1384
1385 if (ABI_64_P (abfd))
d4730f92 1386 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
22b75d0a
DM		 1387 else
1388 num_relocs = sec->reloc_count;
0ffa91dd
NC		 1389
1390 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1391
d0c9aeb3
DM		 1392 if (htab->elf.dynobj == NULL)
1393 htab->elf.dynobj = abfd;
1394 if (!create_ifunc_sections (htab->elf.dynobj, info))
1395 return FALSE;
1396
22b75d0a
DM		 1397 rel_end = relocs + num_relocs;
1398 for (rel = relocs; rel < rel_end; rel++)
1399 {
1400 unsigned int r_type;
1401 unsigned long r_symndx;
1402 struct elf_link_hash_entry *h;
d0c9aeb3 1403 Elf_Internal_Sym *isym;
22b75d0a
DM		 1404
1405 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1406 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1407
1408 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1409 {
695344c0 1410 /* xgettext:c-format */
4eca0228 1411 _bfd_error_handler (_("%B: bad symbol index: %d"), abfd, r_symndx);
22b75d0a
DM		 1412 return FALSE;
1413 }
1414
d0c9aeb3 1415 isym = NULL;
22b75d0a 1416 if (r_symndx < symtab_hdr->sh_info)
d0c9aeb3
DM		 1417 {
1418 /* A local symbol. */
1419 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1420 abfd, r_symndx);
1421 if (isym == NULL)
1422 return FALSE;
1423
1424 /* Check relocation against local STT_GNU_IFUNC symbol. */
1425 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1426 {
1427 h = elf_sparc_get_local_sym_hash (htab, abfd, rel,
1428 TRUE);
1429 if (h == NULL)
1430 return FALSE;
68ffbac6 1431
d0c9aeb3
DM		 1432 /* Fake a STT_GNU_IFUNC symbol. */
1433 h->type = STT_GNU_IFUNC;
1434 h->def_regular = 1;
1435 h->ref_regular = 1;
1436 h->forced_local = 1;
1437 h->root.type = bfd_link_hash_defined;
1438 }
1439 else
1440 h = NULL;
1441 }
22b75d0a 1442 else
973a3492
L		 1443 {
1444 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1445 while (h->root.type == bfd_link_hash_indirect
1446 || h->root.type == bfd_link_hash_warning)
1447 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM		 1448
1449 /* PR15323, ref flags aren't set for references in the same
1450 object. */
1451 h->root.non_ir_ref = 1;
973a3492 1452 }
22b75d0a 1453
d0c9aeb3
DM		 1454 if (h && h->type == STT_GNU_IFUNC)
1455 {
1456 if (h->def_regular)
b48ca1d4
DM		 1457 {
1458 h->ref_regular = 1;
1459 h->plt.refcount += 1;
1460 }
d0c9aeb3
DM		 1461 }
1462
22b75d0a
DM		 1463 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1464 with R_SPARC_TLS_GD_HI22. */
1465 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1466 switch (r_type)
1467 {
1468 case R_SPARC_TLS_GD_HI22:
1469 {
1470 const Elf_Internal_Rela *relt;
1471
1472 for (relt = rel + 1; relt < rel_end; relt++)
1473 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1474 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1475 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1476 break;
1477 checked_tlsgd = TRUE;
1478 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1479 }
1480 break;
1481 case R_SPARC_TLS_GD_LO10:
1482 case R_SPARC_TLS_GD_ADD:
1483 case R_SPARC_TLS_GD_CALL:
1484 checked_tlsgd = TRUE;
1485 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1486 break;
1487 }
1488
1489 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
1490 switch (r_type)
1491 {
1492 case R_SPARC_TLS_LDM_HI22:
1493 case R_SPARC_TLS_LDM_LO10:
1494 htab->tls_ldm_got.refcount += 1;
1495 break;
1496
1497 case R_SPARC_TLS_LE_HIX22:
1498 case R_SPARC_TLS_LE_LOX10:
0e1862bb 1499 if (bfd_link_pic (info))
22b75d0a
DM		 1500 goto r_sparc_plt32;
1501 break;
1502
1503 case R_SPARC_TLS_IE_HI22:
1504 case R_SPARC_TLS_IE_LO10:
0e1862bb 1505 if (bfd_link_pic (info))
22b75d0a
DM		 1506 info->flags |= DF_STATIC_TLS;
1507 /* Fall through */
1508
1509 case R_SPARC_GOT10:
1510 case R_SPARC_GOT13:
1511 case R_SPARC_GOT22:
739f7f82
DM		 1512 case R_SPARC_GOTDATA_HIX22:
1513 case R_SPARC_GOTDATA_LOX10:
1514 case R_SPARC_GOTDATA_OP_HIX22:
1515 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1516 case R_SPARC_TLS_GD_HI22:
1517 case R_SPARC_TLS_GD_LO10:
1518 /* This symbol requires a global offset table entry. */
1519 {
1520 int tls_type, old_tls_type;
1521
1522 switch (r_type)
1523 {
1524 default:
1525 case R_SPARC_GOT10:
1526 case R_SPARC_GOT13:
1527 case R_SPARC_GOT22:
739f7f82
DM		 1528 case R_SPARC_GOTDATA_OP_HIX22:
1529 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1530 tls_type = GOT_NORMAL;
1531 break;
1532 case R_SPARC_TLS_GD_HI22:
1533 case R_SPARC_TLS_GD_LO10:
1534 tls_type = GOT_TLS_GD;
1535 break;
1536 case R_SPARC_TLS_IE_HI22:
1537 case R_SPARC_TLS_IE_LO10:
1538 tls_type = GOT_TLS_IE;
1539 break;
1540 }
1541
1542 if (h != NULL)
1543 {
1544 h->got.refcount += 1;
1545 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1546 }
1547 else
1548 {
1549 bfd_signed_vma *local_got_refcounts;
1550
1551 /* This is a global offset table entry for a local symbol. */
1552 local_got_refcounts = elf_local_got_refcounts (abfd);
1553 if (local_got_refcounts == NULL)
1554 {
1555 bfd_size_type size;
1556
1557 size = symtab_hdr->sh_info;
1558 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1559 local_got_refcounts = ((bfd_signed_vma *)
1560 bfd_zalloc (abfd, size));
1561 if (local_got_refcounts == NULL)
1562 return FALSE;
1563 elf_local_got_refcounts (abfd) = local_got_refcounts;
1564 _bfd_sparc_elf_local_got_tls_type (abfd)
1565 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1566 }
00c50991
DM		 1567 switch (r_type)
1568 {
1569 case R_SPARC_GOTDATA_OP_HIX22:
1570 case R_SPARC_GOTDATA_OP_LOX10:
1571 break;
1572
1573 default:
1574 local_got_refcounts[r_symndx] += 1;
1575 break;
1576 }
22b75d0a
DM		 1577 old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1578 }
1579
1580 /* If a TLS symbol is accessed using IE at least once,
1581 there is no point to use dynamic model for it. */
1582 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1583 && (old_tls_type != GOT_TLS_GD
1584 || tls_type != GOT_TLS_IE))
1585 {
1586 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1587 tls_type = old_tls_type;
1588 else
1589 {
4eca0228 1590 _bfd_error_handler
695344c0 1591 /* xgettext:c-format */
22b75d0a
DM		 1592 (_("%B: `%s' accessed both as normal and thread local symbol"),
1593 abfd, h ? h->root.root.string : "<local>");
1594 return FALSE;
1595 }
1596 }
1597
1598 if (old_tls_type != tls_type)
1599 {
1600 if (h != NULL)
1601 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1602 else
1603 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1604 }
1605 }
1606
72fbc6e5 1607 if (htab->elf.sgot == NULL)
22b75d0a 1608 {
72fbc6e5 1609 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
22b75d0a
DM		 1610 return FALSE;
1611 }
1612 break;
1613
1614 case R_SPARC_TLS_GD_CALL:
1615 case R_SPARC_TLS_LDM_CALL:
0e1862bb 1616 if (bfd_link_pic (info))
22b75d0a
DM		 1617 {
1618 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1619 __tls_get_addr. */
1620 struct bfd_link_hash_entry *bh = NULL;
1621 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1622 "__tls_get_addr", 0,
1623 bfd_und_section_ptr, 0,
1624 NULL, FALSE, FALSE,
1625 &bh))
1626 return FALSE;
1627 h = (struct elf_link_hash_entry *) bh;
1628 }
1629 else
1630 break;
1631 /* Fall through */
1632
1633 case R_SPARC_PLT32:
1634 case R_SPARC_WPLT30:
1635 case R_SPARC_HIPLT22:
1636 case R_SPARC_LOPLT10:
1637 case R_SPARC_PCPLT32:
1638 case R_SPARC_PCPLT22:
1639 case R_SPARC_PCPLT10:
1640 case R_SPARC_PLT64:
1641 /* This symbol requires a procedure linkage table entry. We
1642 actually build the entry in adjust_dynamic_symbol,
1643 because this might be a case of linking PIC code without
1644 linking in any dynamic objects, in which case we don't
1645 need to generate a procedure linkage table after all. */
1646
1647 if (h == NULL)
1648 {
1649 if (! ABI_64_P (abfd))
1650 {
1651 /* The Solaris native assembler will generate a WPLT30
1652 reloc for a local symbol if you assemble a call from
1653 one section to another when using -K pic. We treat
1654 it as WDISP30. */
1655 if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
1656 goto r_sparc_plt32;
1657 break;
1658 }
af1fb11f
NC		 1659 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1660 else if (r_type == R_SPARC_WPLT30)
1661 break;
22b75d0a
DM		 1662
1663 /* It does not make sense to have a procedure linkage
1664 table entry for a local symbol. */
1665 bfd_set_error (bfd_error_bad_value);
1666 return FALSE;
1667 }
1668
1669 h->needs_plt = 1;
1670
1671 {
1672 int this_r_type;
1673
1674 this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
1675 if (this_r_type == R_SPARC_PLT32
1676 || this_r_type == R_SPARC_PLT64)
1677 goto r_sparc_plt32;
1678 }
1679 h->plt.refcount += 1;
1680 break;
1681
1682 case R_SPARC_PC10:
1683 case R_SPARC_PC22:
1684 case R_SPARC_PC_HH22:
1685 case R_SPARC_PC_HM10:
1686 case R_SPARC_PC_LM22:
1687 if (h != NULL)
1688 h->non_got_ref = 1;
1689
1690 if (h != NULL
1691 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1692 break;
1693 /* Fall through. */
1694
1695 case R_SPARC_DISP8:
1696 case R_SPARC_DISP16:
1697 case R_SPARC_DISP32:
1698 case R_SPARC_DISP64:
1699 case R_SPARC_WDISP30:
1700 case R_SPARC_WDISP22:
1701 case R_SPARC_WDISP19:
1702 case R_SPARC_WDISP16:
2615994e 1703 case R_SPARC_WDISP10:
22b75d0a
DM		 1704 case R_SPARC_8:
1705 case R_SPARC_16:
1706 case R_SPARC_32:
1707 case R_SPARC_HI22:
1708 case R_SPARC_22:
1709 case R_SPARC_13:
1710 case R_SPARC_LO10:
1711 case R_SPARC_UA16:
1712 case R_SPARC_UA32:
1713 case R_SPARC_10:
1714 case R_SPARC_11:
1715 case R_SPARC_64:
1716 case R_SPARC_OLO10:
1717 case R_SPARC_HH22:
1718 case R_SPARC_HM10:
1719 case R_SPARC_LM22:
1720 case R_SPARC_7:
1721 case R_SPARC_5:
1722 case R_SPARC_6:
1723 case R_SPARC_HIX22:
1724 case R_SPARC_LOX10:
1725 case R_SPARC_H44:
1726 case R_SPARC_M44:
1727 case R_SPARC_L44:
2615994e 1728 case R_SPARC_H34:
22b75d0a
DM		 1729 case R_SPARC_UA64:
1730 if (h != NULL)
1731 h->non_got_ref = 1;
1732
1733 r_sparc_plt32:
0e1862bb 1734 if (h != NULL && !bfd_link_pic (info))
22b75d0a
DM		 1735 {
1736 /* We may need a .plt entry if the function this reloc
1737 refers to is in a shared lib. */
1738 h->plt.refcount += 1;
1739 }
1740
1741 /* If we are creating a shared library, and this is a reloc
1742 against a global symbol, or a non PC relative reloc
1743 against a local symbol, then we need to copy the reloc
1744 into the shared library. However, if we are linking with
1745 -Bsymbolic, we do not need to copy a reloc against a
1746 global symbol which is defined in an object we are
1747 including in the link (i.e., DEF_REGULAR is set). At
1748 this point we have not seen all the input files, so it is
1749 possible that DEF_REGULAR is not set now but will be set
1750 later (it is never cleared). In case of a weak definition,
1751 DEF_REGULAR may be cleared later by a strong definition in
1752 a shared library. We account for that possibility below by
1753 storing information in the relocs_copied field of the hash
1754 table entry. A similar situation occurs when creating
1755 shared libraries and symbol visibility changes render the
1756 symbol local.
1757
1758 If on the other hand, we are creating an executable, we
1759 may need to keep relocations for symbols satisfied by a
1760 dynamic library if we manage to avoid copy relocs for the
1761 symbol. */
0e1862bb 1762 if ((bfd_link_pic (info)
22b75d0a
DM		 1763 && (sec->flags & SEC_ALLOC) != 0
1764 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1765 || (h != NULL
72fbc6e5 1766 && (! SYMBOLIC_BIND (info, h)
22b75d0a
DM		 1767 || h->root.type == bfd_link_hash_defweak
1768 || !h->def_regular))))
0e1862bb 1769 || (!bfd_link_pic (info)
22b75d0a
DM		 1770 && (sec->flags & SEC_ALLOC) != 0
1771 && h != NULL
1772 && (h->root.type == bfd_link_hash_defweak
d0c9aeb3 1773 || !h->def_regular))
0e1862bb 1774 || (!bfd_link_pic (info)
d0c9aeb3
DM		 1775 && h != NULL
1776 && h->type == STT_GNU_IFUNC))
22b75d0a
DM		 1777 {
1778 struct _bfd_sparc_elf_dyn_relocs *p;
1779 struct _bfd_sparc_elf_dyn_relocs **head;
1780
1781 /* When creating a shared object, we must copy these
1782 relocs into the output file. We create a reloc
1783 section in dynobj and make room for the reloc. */
1784 if (sreloc == NULL)
1785 {
83bac4b0
NC		 1786 sreloc = _bfd_elf_make_dynamic_reloc_section
1787 (sec, htab->elf.dynobj, htab->word_align_power,
1788 abfd, /*rela?*/ TRUE);
1789
22b75d0a 1790 if (sreloc == NULL)
83bac4b0 1791 return FALSE;
22b75d0a
DM		 1792 }
1793
1794 /* If this is a global symbol, we count the number of
1795 relocations we need for this symbol. */
1796 if (h != NULL)
1797 head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
1798 else
1799 {
1800 /* Track dynamic relocs needed for local syms too.
1801 We really need local syms available to do this
1802 easily. Oh well. */
22b75d0a 1803 asection *s;
6edfbbad 1804 void *vpp;
22b75d0a 1805
d0c9aeb3 1806 BFD_ASSERT (isym != NULL);
87d72d41
AM		 1807 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1808 if (s == NULL)
1809 s = sec;
1810
6edfbbad
DJ		 1811 vpp = &elf_section_data (s)->local_dynrel;
1812 head = (struct _bfd_sparc_elf_dyn_relocs **) vpp;
22b75d0a
DM		 1813 }
1814
1815 p = *head;
1816 if (p == NULL || p->sec != sec)
1817 {
1818 bfd_size_type amt = sizeof *p;
1819 p = ((struct _bfd_sparc_elf_dyn_relocs *)
1820 bfd_alloc (htab->elf.dynobj, amt));
1821 if (p == NULL)
1822 return FALSE;
1823 p->next = *head;
1824 *head = p;
1825 p->sec = sec;
1826 p->count = 0;
1827 p->pc_count = 0;
1828 }
1829
1830 p->count += 1;
1831 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1832 p->pc_count += 1;
1833 }
1834
1835 break;
1836
1837 case R_SPARC_GNU_VTINHERIT:
1838 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1839 return FALSE;
1840 break;
1841
1842 case R_SPARC_GNU_VTENTRY:
d17e0c6e
JB		 1843 BFD_ASSERT (h != NULL);
1844 if (h != NULL
1845 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
22b75d0a
DM		 1846 return FALSE;
1847 break;
1848
1849 case R_SPARC_REGISTER:
1850 /* Nothing to do. */
1851 break;
1852
1853 default:
1854 break;
1855 }
1856 }
1857
1858 return TRUE;
1859}
1860\f
1861asection *
1862_bfd_sparc_elf_gc_mark_hook (asection *sec,
1863 struct bfd_link_info *info,
1864 Elf_Internal_Rela *rel,
1865 struct elf_link_hash_entry *h,
1866 Elf_Internal_Sym *sym)
1867{
1868 if (h != NULL)
07adf181 1869 switch (SPARC_ELF_R_TYPE (rel->r_info))
22b75d0a
DM		 1870 {
1871 case R_SPARC_GNU_VTINHERIT:
1872 case R_SPARC_GNU_VTENTRY:
07adf181 1873 return NULL;
22b75d0a 1874 }
22b75d0a 1875
b45b6908 1876 /* FIXME: The test here, in check_relocs and in relocate_section
0e1862bb
L		 1877 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1878 if (bfd_link_pic (info))
b45b6908
AM		 1879 {
1880 switch (SPARC_ELF_R_TYPE (rel->r_info))
1881 {
1882 case R_SPARC_TLS_GD_CALL:
1883 case R_SPARC_TLS_LDM_CALL:
1884 /* This reloc implicitly references __tls_get_addr. We know
1885 another reloc will reference the same symbol as the one
1886 on this reloc, so the real symbol and section will be
1887 gc marked when processing the other reloc. That lets
1888 us handle __tls_get_addr here. */
1889 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1890 FALSE, FALSE, TRUE);
1891 BFD_ASSERT (h != NULL);
1892 h->mark = 1;
1893 if (h->u.weakdef != NULL)
1894 h->u.weakdef->mark = 1;
1895 sym = NULL;
1896 }
1897 }
1898
07adf181 1899 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
22b75d0a
DM		 1900}
1901
abd242a9
DM		 1902static Elf_Internal_Rela *
1903sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
1904 Elf_Internal_Rela *relend,
1905 bfd_vma offset)
1906{
1907 while (rel < relend)
1908 {
1909 if (rel->r_offset == offset)
1910 return rel;
1911 rel++;
1912 }
1913 return NULL;
1914}
1915
22b75d0a
DM		 1916/* Update the got entry reference counts for the section being removed. */
1917bfd_boolean
1918_bfd_sparc_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
1919 asection *sec, const Elf_Internal_Rela *relocs)
1920{
1921 struct _bfd_sparc_elf_link_hash_table *htab;
1922 Elf_Internal_Shdr *symtab_hdr;
1923 struct elf_link_hash_entry **sym_hashes;
1924 bfd_signed_vma *local_got_refcounts;
1925 const Elf_Internal_Rela *rel, *relend;
1926
0e1862bb 1927 if (bfd_link_relocatable (info))
7dda2462
TG		 1928 return TRUE;
1929
0ffa91dd
NC		 1930 BFD_ASSERT (is_sparc_elf (abfd) || sec->reloc_count == 0);
1931
22b75d0a
DM		 1932 elf_section_data (sec)->local_dynrel = NULL;
1933
1934 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1935 BFD_ASSERT (htab != NULL);
0ffa91dd 1936 symtab_hdr = &elf_symtab_hdr (abfd);
22b75d0a
DM		 1937 sym_hashes = elf_sym_hashes (abfd);
1938 local_got_refcounts = elf_local_got_refcounts (abfd);
1939
1940 relend = relocs + sec->reloc_count;
1941 for (rel = relocs; rel < relend; rel++)
1942 {
1943 unsigned long r_symndx;
1944 unsigned int r_type;
1945 struct elf_link_hash_entry *h = NULL;
1946
1947 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1948 if (r_symndx >= symtab_hdr->sh_info)
1949 {
1950 struct _bfd_sparc_elf_link_hash_entry *eh;
1951 struct _bfd_sparc_elf_dyn_relocs **pp;
1952 struct _bfd_sparc_elf_dyn_relocs *p;
1953
1954 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1955 while (h->root.type == bfd_link_hash_indirect
1956 || h->root.type == bfd_link_hash_warning)
1957 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1958 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1959 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1960 if (p->sec == sec)
1961 {
1962 /* Everything must go for SEC. */
1963 *pp = p->next;
1964 break;
1965 }
1966 }
1967
1968 r_type = SPARC_ELF_R_TYPE (rel->r_info);
7833fb7b 1969 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
22b75d0a
DM		 1970 switch (r_type)
1971 {
1972 case R_SPARC_TLS_LDM_HI22:
1973 case R_SPARC_TLS_LDM_LO10:
1974 if (_bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount > 0)
1975 _bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount -= 1;
1976 break;
1977
1978 case R_SPARC_TLS_GD_HI22:
1979 case R_SPARC_TLS_GD_LO10:
1980 case R_SPARC_TLS_IE_HI22:
1981 case R_SPARC_TLS_IE_LO10:
1982 case R_SPARC_GOT10:
1983 case R_SPARC_GOT13:
1984 case R_SPARC_GOT22:
739f7f82
DM		 1985 case R_SPARC_GOTDATA_HIX22:
1986 case R_SPARC_GOTDATA_LOX10:
1987 case R_SPARC_GOTDATA_OP_HIX22:
1988 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1989 if (h != NULL)
1990 {
1991 if (h->got.refcount > 0)
1992 h->got.refcount--;
1993 }
1994 else
1995 {
00c50991
DM		 1996 switch (r_type)
1997 {
1998 case R_SPARC_GOTDATA_OP_HIX22:
1999 case R_SPARC_GOTDATA_OP_LOX10:
2000 break;
2001
2002 default:
2003 if (local_got_refcounts[r_symndx] > 0)
2004 local_got_refcounts[r_symndx]--;
2005 break;
2006 }
22b75d0a
DM		 2007 }
2008 break;
2009
2010 case R_SPARC_PC10:
2011 case R_SPARC_PC22:
2012 case R_SPARC_PC_HH22:
2013 case R_SPARC_PC_HM10:
2014 case R_SPARC_PC_LM22:
2015 if (h != NULL
2016 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2017 break;
2018 /* Fall through. */
2019
2020 case R_SPARC_DISP8:
2021 case R_SPARC_DISP16:
2022 case R_SPARC_DISP32:
2023 case R_SPARC_DISP64:
2024 case R_SPARC_WDISP30:
2025 case R_SPARC_WDISP22:
2026 case R_SPARC_WDISP19:
2027 case R_SPARC_WDISP16:
2615994e 2028 case R_SPARC_WDISP10:
22b75d0a
DM		 2029 case R_SPARC_8:
2030 case R_SPARC_16:
2031 case R_SPARC_32:
2032 case R_SPARC_HI22:
2033 case R_SPARC_22:
2034 case R_SPARC_13:
2035 case R_SPARC_LO10:
2036 case R_SPARC_UA16:
2037 case R_SPARC_UA32:
2038 case R_SPARC_PLT32:
2039 case R_SPARC_10:
2040 case R_SPARC_11:
2041 case R_SPARC_64:
2042 case R_SPARC_OLO10:
2043 case R_SPARC_HH22:
2044 case R_SPARC_HM10:
2045 case R_SPARC_LM22:
2046 case R_SPARC_7:
2047 case R_SPARC_5:
2048 case R_SPARC_6:
2049 case R_SPARC_HIX22:
2050 case R_SPARC_LOX10:
2051 case R_SPARC_H44:
2052 case R_SPARC_M44:
2053 case R_SPARC_L44:
2615994e 2054 case R_SPARC_H34:
22b75d0a 2055 case R_SPARC_UA64:
0e1862bb 2056 if (bfd_link_pic (info))
22b75d0a
DM		 2057 break;
2058 /* Fall through. */
2059
2060 case R_SPARC_WPLT30:
2061 if (h != NULL)
2062 {
2063 if (h->plt.refcount > 0)
2064 h->plt.refcount--;
2065 }
2066 break;
2067
2068 default:
2069 break;
2070 }
2071 }
2072
2073 return TRUE;
2074}
2075
2076/* Adjust a symbol defined by a dynamic object and referenced by a
2077 regular object. The current definition is in some section of the
2078 dynamic object, but we're not including those sections. We have to
2079 change the definition to something the rest of the link can
2080 understand. */
2081
2082bfd_boolean
2083_bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2084 struct elf_link_hash_entry *h)
2085{
2086 struct _bfd_sparc_elf_link_hash_table *htab;
2087 struct _bfd_sparc_elf_link_hash_entry * eh;
2088 struct _bfd_sparc_elf_dyn_relocs *p;
2089 asection *s;
22b75d0a
DM		 2090
2091 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2092 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 2093
2094 /* Make sure we know what is going on here. */
2095 BFD_ASSERT (htab->elf.dynobj != NULL
2096 && (h->needs_plt
d0c9aeb3 2097 || h->type == STT_GNU_IFUNC
22b75d0a
DM		 2098 || h->u.weakdef != NULL
2099 || (h->def_dynamic
2100 && h->ref_regular
2101 && !h->def_regular)));
2102
2103 /* If this is a function, put it in the procedure linkage table. We
2104 will fill in the contents of the procedure linkage table later
2105 (although we could actually do it here). The STT_NOTYPE
2106 condition is a hack specifically for the Oracle libraries
2107 delivered for Solaris; for some inexplicable reason, they define
2108 some of their functions as STT_NOTYPE when they really should be
2109 STT_FUNC. */
2110 if (h->type == STT_FUNC
d0c9aeb3 2111 || h->type == STT_GNU_IFUNC
22b75d0a
DM		 2112 || h->needs_plt
2113 || (h->type == STT_NOTYPE
2114 && (h->root.type == bfd_link_hash_defined
2115 || h->root.type == bfd_link_hash_defweak)
2116 && (h->root.u.def.section->flags & SEC_CODE) != 0))
2117 {
2118 if (h->plt.refcount <= 0
d0c9aeb3
DM		 2119 || (h->type != STT_GNU_IFUNC
2120 && (SYMBOL_CALLS_LOCAL (info, h)
2121 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2122 && h->root.type == bfd_link_hash_undefweak))))
22b75d0a
DM		 2123 {
2124 /* This case can occur if we saw a WPLT30 reloc in an input
2125 file, but the symbol was never referred to by a dynamic
2126 object, or if all references were garbage collected. In
2127 such a case, we don't actually need to build a procedure
2128 linkage table, and we can just do a WDISP30 reloc instead. */
2129 h->plt.offset = (bfd_vma) -1;
2130 h->needs_plt = 0;
2131 }
2132
2133 return TRUE;
2134 }
2135 else
2136 h->plt.offset = (bfd_vma) -1;
2137
2138 /* If this is a weak symbol, and there is a real definition, the
2139 processor independent code will have arranged for us to see the
2140 real definition first, and we can just use the same value. */
2141 if (h->u.weakdef != NULL)
2142 {
2143 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2144 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2145 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2146 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2147 return TRUE;
2148 }
2149
2150 /* This is a reference to a symbol defined by a dynamic object which
2151 is not a function. */
2152
2153 /* If we are creating a shared library, we must presume that the
2154 only references to the symbol are via the global offset table.
2155 For such cases we need not do anything here; the relocations will
2156 be handled correctly by relocate_section. */
0e1862bb 2157 if (bfd_link_pic (info))
22b75d0a
DM		 2158 return TRUE;
2159
2160 /* If there are no references to this symbol that do not use the
2161 GOT, we don't need to generate a copy reloc. */
2162 if (!h->non_got_ref)
2163 return TRUE;
2164
72fbc6e5
DM		 2165 /* If -z nocopyreloc was given, we won't generate them either. */
2166 if (info->nocopyreloc)
2167 {
2168 h->non_got_ref = 0;
2169 return TRUE;
2170 }
2171
22b75d0a
DM		 2172 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2173 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2174 {
2175 s = p->sec->output_section;
2176 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2177 break;
2178 }
2179
2180 /* If we didn't find any dynamic relocs in read-only sections, then
2181 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2182 if (p == NULL)
2183 {
2184 h->non_got_ref = 0;
2185 return TRUE;
2186 }
2187
2188 /* We must allocate the symbol in our .dynbss section, which will
2189 become part of the .bss section of the executable. There will be
2190 an entry for this symbol in the .dynsym section. The dynamic
2191 object will contain position independent code, so all references
2192 from the dynamic object to this symbol will go through the global
2193 offset table. The dynamic linker will use the .dynsym entry to
2194 determine the address it must put in the global offset table, so
2195 both the dynamic object and the regular object will refer to the
2196 same memory location for the variable. */
2197
2198 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2199 to copy the initial value out of the dynamic object and into the
2200 runtime process image. We need to remember the offset into the
2201 .rel.bss section we are going to use. */
1d7e9d18 2202 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
22b75d0a 2203 {
9d19e4fd 2204 htab->elf.srelbss->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2205 h->needs_copy = 1;
2206 }
2207
9d19e4fd 2208 s = htab->elf.sdynbss;
22b75d0a 2209
6cabe1ea 2210 return _bfd_elf_adjust_dynamic_copy (info, h, s);
22b75d0a
DM		 2211}
2212
2213/* Allocate space in .plt, .got and associated reloc sections for
2214 dynamic relocs. */
2215
2216static bfd_boolean
2c3fc389 2217allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
22b75d0a
DM		 2218{
2219 struct bfd_link_info *info;
2220 struct _bfd_sparc_elf_link_hash_table *htab;
2221 struct _bfd_sparc_elf_link_hash_entry *eh;
2222 struct _bfd_sparc_elf_dyn_relocs *p;
2223
2224 if (h->root.type == bfd_link_hash_indirect)
2225 return TRUE;
2226
22b75d0a
DM		 2227 info = (struct bfd_link_info *) inf;
2228 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2229 BFD_ASSERT (htab != NULL);
22b75d0a 2230
d0c9aeb3
DM		 2231 if ((htab->elf.dynamic_sections_created
2232 && h->plt.refcount > 0)
2233 || (h->type == STT_GNU_IFUNC
b48ca1d4
DM		 2234 && h->def_regular
2235 && h->ref_regular))
22b75d0a
DM		 2236 {
2237 /* Make sure this symbol is output as a dynamic symbol.
2238 Undefined weak syms won't yet be marked as dynamic. */
2239 if (h->dynindx == -1
2240 && !h->forced_local)
2241 {
2242 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2243 return FALSE;
2244 }
2245
0e1862bb 2246 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
b48ca1d4
DM		 2247 || (h->type == STT_GNU_IFUNC
2248 && h->def_regular))
22b75d0a 2249 {
72fbc6e5 2250 asection *s = htab->elf.splt;
22b75d0a 2251
d0c9aeb3
DM		 2252 if (s == NULL)
2253 s = htab->elf.iplt;
2254
910600e9 2255 /* Allocate room for the header. */
22b75d0a 2256 if (s->size == 0)
910600e9
RS		 2257 {
2258 s->size = htab->plt_header_size;
2259
2260 /* Allocate space for the .rela.plt.unloaded relocations. */
0e1862bb 2261 if (htab->is_vxworks && !bfd_link_pic (info))
910600e9
RS		 2262 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2263 }
22b75d0a
DM		 2264
2265 /* The procedure linkage table size is bounded by the magnitude
2266 of the offset we can describe in the entry. */
2267 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
e8be8da4 2268 (((bfd_vma)1 << 31) << 1) : 0x400000))
22b75d0a
DM		 2269 {
2270 bfd_set_error (bfd_error_bad_value);
2271 return FALSE;
2272 }
2273
2274 if (SPARC_ELF_WORD_BYTES(htab) == 8
2275 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2276 {
2277 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2278
2279
2280 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2281
2282 h->plt.offset = (s->size - (off * 8));
2283 }
2284 else
2285 h->plt.offset = s->size;
2286
2287 /* If this symbol is not defined in a regular file, and we are
2288 not generating a shared library, then set the symbol to this
2289 location in the .plt. This is required to make function
2290 pointers compare as equal between the normal executable and
2291 the shared library. */
0e1862bb 2292 if (! bfd_link_pic (info)
22b75d0a
DM		 2293 && !h->def_regular)
2294 {
2295 h->root.u.def.section = s;
2296 h->root.u.def.value = h->plt.offset;
2297 }
2298
2299 /* Make room for this entry. */
910600e9 2300 s->size += htab->plt_entry_size;
22b75d0a
DM		 2301
2302 /* We also need to make an entry in the .rela.plt section. */
d0c9aeb3
DM		 2303 if (s == htab->elf.splt)
2304 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
2305 else
2306 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
910600e9
RS		 2307
2308 if (htab->is_vxworks)
2309 {
2310 /* Allocate space for the .got.plt entry. */
72fbc6e5 2311 htab->elf.sgotplt->size += 4;
910600e9
RS		 2312
2313 /* ...and for the .rela.plt.unloaded relocations. */
0e1862bb 2314 if (!bfd_link_pic (info))
910600e9
RS		 2315 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2316 }
22b75d0a
DM		 2317 }
2318 else
2319 {
2320 h->plt.offset = (bfd_vma) -1;
2321 h->needs_plt = 0;
2322 }
2323 }
2324 else
2325 {
2326 h->plt.offset = (bfd_vma) -1;
2327 h->needs_plt = 0;
2328 }
2329
2330 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2331 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2332 if (h->got.refcount > 0
0e1862bb 2333 && !bfd_link_pic (info)
22b75d0a
DM		 2334 && h->dynindx == -1
2335 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2336 h->got.offset = (bfd_vma) -1;
2337 else if (h->got.refcount > 0)
2338 {
2339 asection *s;
2340 bfd_boolean dyn;
2341 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2342
2343 /* Make sure this symbol is output as a dynamic symbol.
2344 Undefined weak syms won't yet be marked as dynamic. */
2345 if (h->dynindx == -1
2346 && !h->forced_local)
2347 {
2348 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2349 return FALSE;
2350 }
2351
72fbc6e5 2352 s = htab->elf.sgot;
22b75d0a
DM		 2353 h->got.offset = s->size;
2354 s->size += SPARC_ELF_WORD_BYTES (htab);
2355 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2356 if (tls_type == GOT_TLS_GD)
2357 s->size += SPARC_ELF_WORD_BYTES (htab);
2358 dyn = htab->elf.dynamic_sections_created;
2359 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2360 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
2361 global. */
2362 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
d0c9aeb3
DM		 2363 || tls_type == GOT_TLS_IE
2364 || h->type == STT_GNU_IFUNC)
72fbc6e5 2365 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a 2366 else if (tls_type == GOT_TLS_GD)
72fbc6e5 2367 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
0e1862bb
L		 2368 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2369 bfd_link_pic (info),
2370 h))
72fbc6e5 2371 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2372 }
2373 else
2374 h->got.offset = (bfd_vma) -1;
2375
2376 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2377 if (eh->dyn_relocs == NULL)
2378 return TRUE;
2379
2380 /* In the shared -Bsymbolic case, discard space allocated for
2381 dynamic pc-relative relocs against symbols which turn out to be
2382 defined in regular objects. For the normal shared case, discard
2383 space for pc-relative relocs that have become local due to symbol
2384 visibility changes. */
2385
0e1862bb 2386 if (bfd_link_pic (info))
22b75d0a 2387 {
72fbc6e5 2388 if (SYMBOL_CALLS_LOCAL (info, h))
22b75d0a
DM		 2389 {
2390 struct _bfd_sparc_elf_dyn_relocs **pp;
2391
2392 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2393 {
2394 p->count -= p->pc_count;
2395 p->pc_count = 0;
2396 if (p->count == 0)
2397 *pp = p->next;
2398 else
2399 pp = &p->next;
2400 }
2401 }
22d606e9 2402
3348747a
NS		 2403 if (htab->is_vxworks)
2404 {
2405 struct _bfd_sparc_elf_dyn_relocs **pp;
2406
2407 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2408 {
2409 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2410 *pp = p->next;
2411 else
2412 pp = &p->next;
2413 }
2414 }
2415
22d606e9
AM		 2416 /* Also discard relocs on undefined weak syms with non-default
2417 visibility. */
2418 if (eh->dyn_relocs != NULL
2419 && h->root.type == bfd_link_hash_undefweak)
2420 {
2421 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2422 eh->dyn_relocs = NULL;
2423
2424 /* Make sure undefined weak symbols are output as a dynamic
2425 symbol in PIEs. */
2426 else if (h->dynindx == -1
2427 && !h->forced_local)
2428 {
2429 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2430 return FALSE;
2431 }
2432 }
22b75d0a
DM		 2433 }
2434 else
2435 {
2436 /* For the non-shared case, discard space for relocs against
2437 symbols which turn out to need copy relocs or are not
2438 dynamic. */
2439
2440 if (!h->non_got_ref
2441 && ((h->def_dynamic
2442 && !h->def_regular)
2443 || (htab->elf.dynamic_sections_created
2444 && (h->root.type == bfd_link_hash_undefweak
2445 || h->root.type == bfd_link_hash_undefined))))
2446 {
2447 /* Make sure this symbol is output as a dynamic symbol.
2448 Undefined weak syms won't yet be marked as dynamic. */
2449 if (h->dynindx == -1
2450 && !h->forced_local)
2451 {
2452 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2453 return FALSE;
2454 }
2455
2456 /* If that succeeded, we know we'll be keeping all the
2457 relocs. */
2458 if (h->dynindx != -1)
2459 goto keep;
2460 }
2461
2462 eh->dyn_relocs = NULL;
2463
2464 keep: ;
2465 }
2466
2467 /* Finally, allocate space. */
2468 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2469 {
2470 asection *sreloc = elf_section_data (p->sec)->sreloc;
2471 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2472 }
2473
2474 return TRUE;
2475}
2476
d0c9aeb3
DM		 2477/* Allocate space in .plt, .got and associated reloc sections for
2478 local dynamic relocs. */
2479
2480static bfd_boolean
2481allocate_local_dynrelocs (void **slot, void *inf)
2482{
2483 struct elf_link_hash_entry *h
2484 = (struct elf_link_hash_entry *) *slot;
2485
2486 if (h->type != STT_GNU_IFUNC
2487 || !h->def_regular
2488 || !h->ref_regular
2489 || !h->forced_local
2490 || h->root.type != bfd_link_hash_defined)
2491 abort ();
2492
2493 return allocate_dynrelocs (h, inf);
2494}
2495
22b75d0a
DM		 2496/* Find any dynamic relocs that apply to read-only sections. */
2497
2498static bfd_boolean
2c3fc389 2499readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
22b75d0a
DM		 2500{
2501 struct _bfd_sparc_elf_link_hash_entry *eh;
2502 struct _bfd_sparc_elf_dyn_relocs *p;
2503
22b75d0a
DM		 2504 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2505 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2506 {
2507 asection *s = p->sec->output_section;
2508
2509 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2510 {
2511 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2512
2513 info->flags |= DF_TEXTREL;
2514
2515 /* Not an error, just cut short the traversal. */
2516 return FALSE;
2517 }
2518 }
2519 return TRUE;
2520}
2521
2522/* Return true if the dynamic symbol for a given section should be
2523 omitted when creating a shared library. */
2524
2525bfd_boolean
2526_bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2527 struct bfd_link_info *info,
2528 asection *p)
2529{
2530 /* We keep the .got section symbol so that explicit relocations
2531 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2532 can be turned into relocations against the .got symbol. */
2533 if (strcmp (p->name, ".got") == 0)
2534 return FALSE;
2535
2536 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2537}
2538
2539/* Set the sizes of the dynamic sections. */
2540
2541bfd_boolean
2542_bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2543 struct bfd_link_info *info)
2544{
2545 struct _bfd_sparc_elf_link_hash_table *htab;
2546 bfd *dynobj;
2547 asection *s;
2548 bfd *ibfd;
2549
2550 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2551 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 2552 dynobj = htab->elf.dynobj;
2553 BFD_ASSERT (dynobj != NULL);
2554
2555 if (elf_hash_table (info)->dynamic_sections_created)
2556 {
2557 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2558 if (bfd_link_executable (info) && !info->nointerp)
22b75d0a 2559 {
3d4d4302 2560 s = bfd_get_linker_section (dynobj, ".interp");
22b75d0a
DM		 2561 BFD_ASSERT (s != NULL);
2562 s->size = htab->dynamic_interpreter_size;
2563 s->contents = (unsigned char *) htab->dynamic_interpreter;
2564 }
2565 }
2566
2567 /* Set up .got offsets for local syms, and space for local dynamic
2568 relocs. */
c72f2fb2 2569 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
22b75d0a
DM		 2570 {
2571 bfd_signed_vma *local_got;
2572 bfd_signed_vma *end_local_got;
2573 char *local_tls_type;
2574 bfd_size_type locsymcount;
2575 Elf_Internal_Shdr *symtab_hdr;
2576 asection *srel;
2577
0ffa91dd 2578 if (! is_sparc_elf (ibfd))
22b75d0a
DM		 2579 continue;
2580
2581 for (s = ibfd->sections; s != NULL; s = s->next)
2582 {
2583 struct _bfd_sparc_elf_dyn_relocs *p;
2584
6edfbbad 2585 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
22b75d0a
DM		 2586 {
2587 if (!bfd_is_abs_section (p->sec)
2588 && bfd_is_abs_section (p->sec->output_section))
2589 {
2590 /* Input section has been discarded, either because
2591 it is a copy of a linkonce section or due to
2592 linker script /DISCARD/, so we'll be discarding
2593 the relocs too. */
2594 }
3348747a
NS		 2595 else if (htab->is_vxworks
2596 && strcmp (p->sec->output_section->name,
2597 ".tls_vars") == 0)
2598 {
2599 /* Relocations in vxworks .tls_vars sections are
2600 handled specially by the loader. */
2601 }
22b75d0a
DM		 2602 else if (p->count != 0)
2603 {
2604 srel = elf_section_data (p->sec)->sreloc;
d0c9aeb3
DM		 2605 if (!htab->elf.dynamic_sections_created)
2606 srel = htab->elf.irelplt;
22b75d0a
DM		 2607 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2608 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2609 info->flags |= DF_TEXTREL;
2610 }
2611 }
2612 }
2613
2614 local_got = elf_local_got_refcounts (ibfd);
2615 if (!local_got)
2616 continue;
2617
0ffa91dd 2618 symtab_hdr = &elf_symtab_hdr (ibfd);
22b75d0a
DM		 2619 locsymcount = symtab_hdr->sh_info;
2620 end_local_got = local_got + locsymcount;
2621 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
72fbc6e5
DM		 2622 s = htab->elf.sgot;
2623 srel = htab->elf.srelgot;
22b75d0a
DM		 2624 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2625 {
2626 if (*local_got > 0)
2627 {
2628 *local_got = s->size;
2629 s->size += SPARC_ELF_WORD_BYTES (htab);
2630 if (*local_tls_type == GOT_TLS_GD)
2631 s->size += SPARC_ELF_WORD_BYTES (htab);
0e1862bb 2632 if (bfd_link_pic (info)
22b75d0a
DM		 2633 || *local_tls_type == GOT_TLS_GD
2634 || *local_tls_type == GOT_TLS_IE)
2635 srel->size += SPARC_ELF_RELA_BYTES (htab);
2636 }
2637 else
2638 *local_got = (bfd_vma) -1;
2639 }
2640 }
2641
2642 if (htab->tls_ldm_got.refcount > 0)
2643 {
2644 /* Allocate 2 got entries and 1 dynamic reloc for
2645 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
72fbc6e5
DM		 2646 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2647 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2648 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2649 }
2650 else
2651 htab->tls_ldm_got.offset = -1;
2652
2653 /* Allocate global sym .plt and .got entries, and space for global
2654 sym dynamic relocs. */
2c3fc389 2655 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
22b75d0a 2656
d0c9aeb3
DM		 2657 /* Allocate .plt and .got entries, and space for local symbols. */
2658 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2659
0fc9967d
JM		 2660 if (! ABI_64_P (output_bfd)
2661 && !htab->is_vxworks
22b75d0a
DM		 2662 && elf_hash_table (info)->dynamic_sections_created)
2663 {
0fc9967d
JM		 2664 /* Make space for the trailing nop in .plt. */
2665 if (htab->elf.splt->size > 0)
2666 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
22b75d0a
DM		 2667
2668 /* If the .got section is more than 0x1000 bytes, we add
2669 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
0fc9967d
JM		 2670 bit relocations have a greater chance of working.
2671
2672 FIXME: Make this optimization work for 64-bit too. */
72fbc6e5 2673 if (htab->elf.sgot->size >= 0x1000
22b75d0a
DM		 2674 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2675 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2676 }
2677
2678 /* The check_relocs and adjust_dynamic_symbol entry points have
2679 determined the sizes of the various dynamic sections. Allocate
2680 memory for them. */
2681 for (s = dynobj->sections; s != NULL; s = s->next)
2682 {
22b75d0a
DM		 2683 if ((s->flags & SEC_LINKER_CREATED) == 0)
2684 continue;
2685
72fbc6e5
DM		 2686 if (s == htab->elf.splt
2687 || s == htab->elf.sgot
9d19e4fd 2688 || s == htab->elf.sdynbss
d0c9aeb3 2689 || s == htab->elf.iplt
72fbc6e5 2690 || s == htab->elf.sgotplt)
22b75d0a 2691 {
c456f082
AM		 2692 /* Strip this section if we don't need it; see the
2693 comment below. */
2694 }
0112cd26 2695 else if (CONST_STRNEQ (s->name, ".rela"))
c456f082
AM		 2696 {
2697 if (s->size != 0)
22b75d0a
DM		 2698 {
2699 /* We use the reloc_count field as a counter if we need
2700 to copy relocs into the output file. */
2701 s->reloc_count = 0;
2702 }
2703 }
c456f082 2704 else
22b75d0a 2705 {
c456f082 2706 /* It's not one of our sections. */
22b75d0a
DM		 2707 continue;
2708 }
2709
c456f082 2710 if (s->size == 0)
22b75d0a 2711 {
c456f082
AM		 2712 /* If we don't need this section, strip it from the
2713 output file. This is mostly to handle .rela.bss and
2714 .rela.plt. We must create both sections in
2715 create_dynamic_sections, because they must be created
2716 before the linker maps input sections to output
2717 sections. The linker does that before
2718 adjust_dynamic_symbol is called, and it is that
2719 function which decides whether anything needs to go
2720 into these sections. */
8423293d 2721 s->flags |= SEC_EXCLUDE;
22b75d0a
DM		 2722 continue;
2723 }
2724
c456f082
AM		 2725 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2726 continue;
2727
22b75d0a
DM		 2728 /* Allocate memory for the section contents. Zero the memory
2729 for the benefit of .rela.plt, which has 4 unused entries
2730 at the beginning, and we don't want garbage. */
2731 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
c456f082 2732 if (s->contents == NULL)
22b75d0a
DM		 2733 return FALSE;
2734 }
2735
2736 if (elf_hash_table (info)->dynamic_sections_created)
2737 {
2738 /* Add some entries to the .dynamic section. We fill in the
2739 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2740 must add the entries now so that we get the correct size for
2741 the .dynamic section. The DT_DEBUG entry is filled in by the
2742 dynamic linker and used by the debugger. */
2743#define add_dynamic_entry(TAG, VAL) \
2744 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2745
0e1862bb 2746 if (bfd_link_executable (info))
22b75d0a
DM		 2747 {
2748 if (!add_dynamic_entry (DT_DEBUG, 0))
2749 return FALSE;
2750 }
2751
72fbc6e5 2752 if (htab->elf.srelplt->size != 0)
22b75d0a
DM		 2753 {
2754 if (!add_dynamic_entry (DT_PLTGOT, 0)
2755 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2756 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2757 || !add_dynamic_entry (DT_JMPREL, 0))
2758 return FALSE;
2759 }
2760
2761 if (!add_dynamic_entry (DT_RELA, 0)
2762 || !add_dynamic_entry (DT_RELASZ, 0)
2763 || !add_dynamic_entry (DT_RELAENT,
2764 SPARC_ELF_RELA_BYTES (htab)))
2765 return FALSE;
2766
2767 /* If any dynamic relocs apply to a read-only section,
2768 then we need a DT_TEXTREL entry. */
2769 if ((info->flags & DF_TEXTREL) == 0)
2c3fc389 2770 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
22b75d0a
DM		 2771
2772 if (info->flags & DF_TEXTREL)
2773 {
2774 if (!add_dynamic_entry (DT_TEXTREL, 0))
2775 return FALSE;
2776 }
2777
2778 if (ABI_64_P (output_bfd))
2779 {
2780 int reg;
2781 struct _bfd_sparc_elf_app_reg * app_regs;
2782 struct elf_strtab_hash *dynstr;
2783 struct elf_link_hash_table *eht = elf_hash_table (info);
2784
2785 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2786 entries if needed. */
2787 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2788 dynstr = eht->dynstr;
2789
2790 for (reg = 0; reg < 4; reg++)
2791 if (app_regs [reg].name != NULL)
2792 {
2793 struct elf_link_local_dynamic_entry *entry, *e;
2794
2795 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2796 return FALSE;
2797
2798 entry = (struct elf_link_local_dynamic_entry *)
2799 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2800 if (entry == NULL)
2801 return FALSE;
2802
2803 /* We cheat here a little bit: the symbol will not be local, so we
2804 put it at the end of the dynlocal linked list. We will fix it
2805 later on, as we have to fix other fields anyway. */
2806 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2807 entry->isym.st_size = 0;
2808 if (*app_regs [reg].name != '\0')
2809 entry->isym.st_name
2810 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2811 else
2812 entry->isym.st_name = 0;
2813 entry->isym.st_other = 0;
2814 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2815 STT_REGISTER);
2816 entry->isym.st_shndx = app_regs [reg].shndx;
35fc36a8 2817 entry->isym.st_target_internal = 0;
22b75d0a
DM		 2818 entry->next = NULL;
2819 entry->input_bfd = output_bfd;
2820 entry->input_indx = -1;
2821
2822 if (eht->dynlocal == NULL)
2823 eht->dynlocal = entry;
2824 else
2825 {
2826 for (e = eht->dynlocal; e->next; e = e->next)
2827 ;
2828 e->next = entry;
2829 }
2830 eht->dynsymcount++;
2831 }
2832 }
7a2b07ff
NS		 2833 if (htab->is_vxworks
2834 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2835 return FALSE;
22b75d0a
DM		 2836 }
2837#undef add_dynamic_entry
2838
2839 return TRUE;
2840}
2841\f
2842bfd_boolean
2843_bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2844{
f592407e
AM		 2845 if (!sec->used_by_bfd)
2846 {
2847 struct _bfd_sparc_elf_section_data *sdata;
2848 bfd_size_type amt = sizeof (*sdata);
22b75d0a 2849
f592407e
AM		 2850 sdata = bfd_zalloc (abfd, amt);
2851 if (sdata == NULL)
2852 return FALSE;
2853 sec->used_by_bfd = sdata;
2854 }
22b75d0a
DM		 2855
2856 return _bfd_elf_new_section_hook (abfd, sec);
2857}
2858
2859bfd_boolean
2860_bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2861 struct bfd_section *section,
2862 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2863 bfd_boolean *again)
2864{
0e1862bb 2865 if (bfd_link_relocatable (link_info))
c8a1f254
NS		 2866 (*link_info->callbacks->einfo)
2867 (_("%P%F: --relax and -r may not be used together\n"));
2868
22b75d0a
DM		 2869 *again = FALSE;
2870 sec_do_relax (section) = 1;
2871 return TRUE;
2872}
2873\f
2874/* Return the base VMA address which should be subtracted from real addresses
2875 when resolving @dtpoff relocation.
2876 This is PT_TLS segment p_vaddr. */
2877
2878static bfd_vma
2879dtpoff_base (struct bfd_link_info *info)
2880{
2881 /* If tls_sec is NULL, we should have signalled an error already. */
2882 if (elf_hash_table (info)->tls_sec == NULL)
2883 return 0;
2884 return elf_hash_table (info)->tls_sec->vma;
2885}
2886
2887/* Return the relocation value for @tpoff relocation
2888 if STT_TLS virtual address is ADDRESS. */
2889
2890static bfd_vma
2891tpoff (struct bfd_link_info *info, bfd_vma address)
2892{
2893 struct elf_link_hash_table *htab = elf_hash_table (info);
1360ba76
RO		 2894 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
2895 bfd_vma static_tls_size;
22b75d0a
DM		 2896
2897 /* If tls_sec is NULL, we should have signalled an error already. */
2898 if (htab->tls_sec == NULL)
2899 return 0;
1360ba76
RO		 2900
2901 /* Consider special static TLS alignment requirements. */
2902 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
2903 return address - static_tls_size - htab->tls_sec->vma;
22b75d0a
DM		 2904}
2905
00c50991
DM		 2906/* Return the relocation value for a %gdop relocation. */
2907
2908static bfd_vma
2909gdopoff (struct bfd_link_info *info, bfd_vma address)
2910{
2911 struct elf_link_hash_table *htab = elf_hash_table (info);
2912 bfd_vma got_base;
2913
2914 got_base = (htab->hgot->root.u.def.value
2915 + htab->hgot->root.u.def.section->output_offset
2916 + htab->hgot->root.u.def.section->output_section->vma);
2917
2918 return address - got_base;
2919}
2920
22b75d0a
DM		 2921/* Relocate a SPARC ELF section. */
2922
2923bfd_boolean
ab96bf03
AM		 2924_bfd_sparc_elf_relocate_section (bfd *output_bfd,
2925 struct bfd_link_info *info,
2926 bfd *input_bfd,
2927 asection *input_section,
2928 bfd_byte *contents,
2929 Elf_Internal_Rela *relocs,
2930 Elf_Internal_Sym *local_syms,
2931 asection **local_sections)
22b75d0a
DM		 2932{
2933 struct _bfd_sparc_elf_link_hash_table *htab;
2934 Elf_Internal_Shdr *symtab_hdr;
2935 struct elf_link_hash_entry **sym_hashes;
2936 bfd_vma *local_got_offsets;
2937 bfd_vma got_base;
2938 asection *sreloc;
2939 Elf_Internal_Rela *rel;
2940 Elf_Internal_Rela *relend;
2941 int num_relocs;
3348747a 2942 bfd_boolean is_vxworks_tls;
22b75d0a 2943
22b75d0a 2944 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2945 BFD_ASSERT (htab != NULL);
0ffa91dd 2946 symtab_hdr = &elf_symtab_hdr (input_bfd);
22b75d0a
DM		 2947 sym_hashes = elf_sym_hashes (input_bfd);
2948 local_got_offsets = elf_local_got_offsets (input_bfd);
2949
2950 if (elf_hash_table (info)->hgot == NULL)
2951 got_base = 0;
2952 else
2953 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2954
2955 sreloc = elf_section_data (input_section)->sreloc;
3348747a
NS		 2956 /* We have to handle relocations in vxworks .tls_vars sections
2957 specially, because the dynamic loader is 'weird'. */
0e1862bb 2958 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3348747a
NS		 2959 && !strcmp (input_section->output_section->name,
2960 ".tls_vars"));
22b75d0a
DM		 2961
2962 rel = relocs;
2963 if (ABI_64_P (output_bfd))
d4730f92 2964 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
22b75d0a
DM		 2965 else
2966 num_relocs = input_section->reloc_count;
2967 relend = relocs + num_relocs;
2968 for (; rel < relend; rel++)
2969 {
2970 int r_type, tls_type;
2971 reloc_howto_type *howto;
2972 unsigned long r_symndx;
2973 struct elf_link_hash_entry *h;
2974 Elf_Internal_Sym *sym;
2975 asection *sec;
2976 bfd_vma relocation, off;
2977 bfd_reloc_status_type r;
2978 bfd_boolean is_plt = FALSE;
2979 bfd_boolean unresolved_reloc;
2980
2981 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2982 if (r_type == R_SPARC_GNU_VTINHERIT
2983 || r_type == R_SPARC_GNU_VTENTRY)
2984 continue;
2985
2986 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2987 {
2988 bfd_set_error (bfd_error_bad_value);
2989 return FALSE;
2990 }
2991 howto = _bfd_sparc_elf_howto_table + r_type;
2992
22b75d0a
DM		 2993 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2994 h = NULL;
2995 sym = NULL;
2996 sec = NULL;
2997 unresolved_reloc = FALSE;
2998 if (r_symndx < symtab_hdr->sh_info)
2999 {
3000 sym = local_syms + r_symndx;
3001 sec = local_sections[r_symndx];
3002 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
d0c9aeb3 3003
0e1862bb 3004 if (!bfd_link_relocatable (info)
d0c9aeb3
DM		 3005 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
3006 {
3007 /* Relocate against local STT_GNU_IFUNC symbol. */
3008 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
3009 rel, FALSE);
3010 if (h == NULL)
3011 abort ();
3012
68ffbac6 3013 /* Set STT_GNU_IFUNC symbol value. */
d0c9aeb3
DM		 3014 h->root.u.def.value = sym->st_value;
3015 h->root.u.def.section = sec;
3016 }
22b75d0a
DM		 3017 }
3018 else
3019 {
62d887d4 3020 bfd_boolean warned, ignored;
22b75d0a
DM		 3021
3022 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3023 r_symndx, symtab_hdr, sym_hashes,
3024 h, sec, relocation,
62d887d4 3025 unresolved_reloc, warned, ignored);
22b75d0a
DM		 3026 if (warned)
3027 {
3028 /* To avoid generating warning messages about truncated
3029 relocations, set the relocation's address to be the same as
3030 the start of this section. */
3031 if (input_section->output_section != NULL)
3032 relocation = input_section->output_section->vma;
3033 else
3034 relocation = 0;
3035 }
3036 }
3037
dbaa2011 3038 if (sec != NULL && discarded_section (sec))
e4067dbb 3039 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 3040 rel, 1, relend, howto, 0, contents);
ab96bf03 3041
0e1862bb 3042 if (bfd_link_relocatable (info))
ab96bf03
AM		 3043 continue;
3044
d0c9aeb3
DM		 3045 if (h != NULL
3046 && h->type == STT_GNU_IFUNC
3047 && h->def_regular)
3048 {
3049 asection *plt_sec;
3050 const char *name;
3051
3052 if ((input_section->flags & SEC_ALLOC) == 0
3053 || h->plt.offset == (bfd_vma) -1)
3054 abort ();
3055
3056 plt_sec = htab->elf.splt;
3057 if (! plt_sec)
3058 plt_sec =htab->elf.iplt;
3059
3060 switch (r_type)
3061 {
00c50991
DM		 3062 case R_SPARC_GOTDATA_OP:
3063 continue;
3064
d0c9aeb3
DM		 3065 case R_SPARC_GOTDATA_OP_HIX22:
3066 case R_SPARC_GOTDATA_OP_LOX10:
00c50991
DM		 3067 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3068 ? R_SPARC_GOT22
3069 : R_SPARC_GOT10);
3070 howto = _bfd_sparc_elf_howto_table + r_type;
3071 /* Fall through. */
3072
d0c9aeb3
DM		 3073 case R_SPARC_GOT10:
3074 case R_SPARC_GOT13:
3075 case R_SPARC_GOT22:
3076 if (htab->elf.sgot == NULL)
3077 abort ();
3078 off = h->got.offset;
3079 if (off == (bfd_vma) -1)
3080 abort();
3081 relocation = htab->elf.sgot->output_offset + off - got_base;
3082 goto do_relocation;
3083
3084 case R_SPARC_WPLT30:
3085 case R_SPARC_WDISP30:
3086 relocation = (plt_sec->output_section->vma
3087 + plt_sec->output_offset + h->plt.offset);
3088 goto do_relocation;
3089
3090 case R_SPARC_32:
3091 case R_SPARC_64:
0e1862bb 3092 if (bfd_link_pic (info) && h->non_got_ref)
d0c9aeb3
DM		 3093 {
3094 Elf_Internal_Rela outrel;
3095 bfd_vma offset;
3096
3097 offset = _bfd_elf_section_offset (output_bfd, info,
3098 input_section,
3099 rel->r_offset);
3100 if (offset == (bfd_vma) -1
3101 || offset == (bfd_vma) -2)
3102 abort();
3103
3104 outrel.r_offset = (input_section->output_section->vma
3105 + input_section->output_offset
3106 + offset);
3107
3108 if (h->dynindx == -1
3109 || h->forced_local
0e1862bb 3110 || bfd_link_executable (info))
d0c9aeb3
DM		 3111 {
3112 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3113 0, R_SPARC_IRELATIVE);
3114 outrel.r_addend = relocation + rel->r_addend;
3115 }
3116 else
3117 {
3118 if (h->dynindx == -1)
3119 abort();
3120 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3121 outrel.r_addend = rel->r_addend;
3122 }
3123
3124 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3125 continue;
3126 }
3127
3128 relocation = (plt_sec->output_section->vma
3129 + plt_sec->output_offset + h->plt.offset);
3130 goto do_relocation;
3131
3132 case R_SPARC_HI22:
3133 case R_SPARC_LO10:
3134 /* We should only see such relocs in static links. */
0e1862bb 3135 if (bfd_link_pic (info))
d0c9aeb3
DM		 3136 abort();
3137 relocation = (plt_sec->output_section->vma
3138 + plt_sec->output_offset + h->plt.offset);
3139 goto do_relocation;
3140
3141 default:
3142 if (h->root.root.string)
3143 name = h->root.root.string;
3144 else
3145 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3146 NULL);
4eca0228 3147 _bfd_error_handler
695344c0 3148 /* xgettext:c-format */
d0c9aeb3
DM		 3149 (_("%B: relocation %s against STT_GNU_IFUNC "
3150 "symbol `%s' isn't handled by %s"), input_bfd,
3151 _bfd_sparc_elf_howto_table[r_type].name,
3152 name, __FUNCTION__);
3153 bfd_set_error (bfd_error_bad_value);
3154 return FALSE;
3155 }
3156 }
3157
22b75d0a
DM		 3158 switch (r_type)
3159 {
739f7f82
DM		 3160 case R_SPARC_GOTDATA_OP_HIX22:
3161 case R_SPARC_GOTDATA_OP_LOX10:
00c50991 3162 if (SYMBOL_REFERENCES_LOCAL (info, h))
cc133f9f
JC		 3163 {
3164 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3165 ? R_SPARC_GOTDATA_HIX22
3166 : R_SPARC_GOTDATA_LOX10);
3167 howto = _bfd_sparc_elf_howto_table + r_type;
3168 }
00c50991
DM		 3169 break;
3170
3171 case R_SPARC_GOTDATA_OP:
3172 if (SYMBOL_REFERENCES_LOCAL (info, h))
3173 {
3174 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3175
3176 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3177 relocation = 0x80000000 | (insn & 0x3e07c01f);
3178 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3179 }
3180 continue;
3181 }
3182
3183 switch (r_type)
3184 {
3185 case R_SPARC_GOTDATA_HIX22:
3186 case R_SPARC_GOTDATA_LOX10:
3187 relocation = gdopoff (info, relocation);
3188 break;
739f7f82 3189
cc133f9f
JC		 3190 case R_SPARC_GOTDATA_OP_HIX22:
3191 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 3192 case R_SPARC_GOT10:
3193 case R_SPARC_GOT13:
3194 case R_SPARC_GOT22:
3195 /* Relocation is to the entry for this symbol in the global
3196 offset table. */
72fbc6e5 3197 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3198 abort ();
3199
3200 if (h != NULL)
3201 {
3202 bfd_boolean dyn;
3203
3204 off = h->got.offset;
3205 BFD_ASSERT (off != (bfd_vma) -1);
3206 dyn = elf_hash_table (info)->dynamic_sections_created;
3207
0e1862bb
L		 3208 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3209 bfd_link_pic (info),
3210 h)
3211 || (bfd_link_pic (info)
72fbc6e5 3212 && SYMBOL_REFERENCES_LOCAL (info, h)))
22b75d0a
DM		 3213 {
3214 /* This is actually a static link, or it is a
3215 -Bsymbolic link and the symbol is defined
3216 locally, or the symbol was forced to be local
3217 because of a version file. We must initialize
3218 this entry in the global offset table. Since the
3219 offset must always be a multiple of 8 for 64-bit
3220 and 4 for 32-bit, we use the least significant bit
3221 to record whether we have initialized it already.
3222
3223 When doing a dynamic link, we create a .rela.got
3224 relocation entry to initialize the value. This
3225 is done in the finish_dynamic_symbol routine. */
3226 if ((off & 1) != 0)
3227 off &= ~1;
3228 else
3229 {
3230 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
72fbc6e5 3231 htab->elf.sgot->contents + off);
22b75d0a
DM		 3232 h->got.offset |= 1;
3233 }
3234 }
3235 else
3236 unresolved_reloc = FALSE;
3237 }
3238 else
3239 {
3240 BFD_ASSERT (local_got_offsets != NULL
3241 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3242
3243 off = local_got_offsets[r_symndx];
3244
3245 /* The offset must always be a multiple of 8 on 64-bit and
3246 4 on 32-bit. We use the least significant bit to record
3247 whether we have already processed this entry. */
3248 if ((off & 1) != 0)
3249 off &= ~1;
3250 else
3251 {
3252
0e1862bb 3253 if (bfd_link_pic (info))
22b75d0a
DM		 3254 {
3255 asection *s;
3256 Elf_Internal_Rela outrel;
3257
3258 /* We need to generate a R_SPARC_RELATIVE reloc
3259 for the dynamic linker. */
72fbc6e5 3260 s = htab->elf.srelgot;
22b75d0a
DM		 3261 BFD_ASSERT (s != NULL);
3262
72fbc6e5
DM		 3263 outrel.r_offset = (htab->elf.sgot->output_section->vma
3264 + htab->elf.sgot->output_offset
22b75d0a
DM		 3265 + off);
3266 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3267 0, R_SPARC_RELATIVE);
3268 outrel.r_addend = relocation;
3269 relocation = 0;
39817122 3270 sparc_elf_append_rela (output_bfd, s, &outrel);
22b75d0a
DM		 3271 }
3272
3273 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
72fbc6e5 3274 htab->elf.sgot->contents + off);
22b75d0a
DM		 3275 local_got_offsets[r_symndx] |= 1;
3276 }
3277 }
72fbc6e5 3278 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3279 break;
3280
3281 case R_SPARC_PLT32:
3282 case R_SPARC_PLT64:
3283 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3284 {
3285 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3286 goto r_sparc_plt32;
3287 }
3288 /* Fall through. */
3289
3290 case R_SPARC_WPLT30:
3291 case R_SPARC_HIPLT22:
3292 case R_SPARC_LOPLT10:
3293 case R_SPARC_PCPLT32:
3294 case R_SPARC_PCPLT22:
3295 case R_SPARC_PCPLT10:
3296 r_sparc_wplt30:
3297 /* Relocation is to the entry for this symbol in the
3298 procedure linkage table. */
3299
3300 if (! ABI_64_P (output_bfd))
3301 {
3302 /* The Solaris native assembler will generate a WPLT30 reloc
3303 for a local symbol if you assemble a call from one
3304 section to another when using -K pic. We treat it as
3305 WDISP30. */
3306 if (h == NULL)
3307 break;
3308 }
68ffbac6 3309 /* PR 7027: We need similar behaviour for 64-bit binaries. */
af1fb11f
NC		 3310 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3311 break;
22b75d0a
DM		 3312 else
3313 {
3314 BFD_ASSERT (h != NULL);
3315 }
3316
72fbc6e5 3317 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
22b75d0a
DM		 3318 {
3319 /* We didn't make a PLT entry for this symbol. This
3320 happens when statically linking PIC code, or when
3321 using -Bsymbolic. */
3322 break;
3323 }
3324
72fbc6e5
DM		 3325 relocation = (htab->elf.splt->output_section->vma
3326 + htab->elf.splt->output_offset
22b75d0a
DM		 3327 + h->plt.offset);
3328 unresolved_reloc = FALSE;
3329 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3330 {
3331 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3332 is_plt = TRUE;
3333 goto r_sparc_plt32;
3334 }
3335 break;
3336
3337 case R_SPARC_PC10:
3338 case R_SPARC_PC22:
3339 case R_SPARC_PC_HH22:
3340 case R_SPARC_PC_HM10:
3341 case R_SPARC_PC_LM22:
3342 if (h != NULL
3343 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3344 break;
3345 /* Fall through. */
3346 case R_SPARC_DISP8:
3347 case R_SPARC_DISP16:
3348 case R_SPARC_DISP32:
3349 case R_SPARC_DISP64:
3350 case R_SPARC_WDISP30:
3351 case R_SPARC_WDISP22:
3352 case R_SPARC_WDISP19:
3353 case R_SPARC_WDISP16:
2615994e 3354 case R_SPARC_WDISP10:
22b75d0a
DM		 3355 case R_SPARC_8:
3356 case R_SPARC_16:
3357 case R_SPARC_32:
3358 case R_SPARC_HI22:
3359 case R_SPARC_22:
3360 case R_SPARC_13:
3361 case R_SPARC_LO10:
3362 case R_SPARC_UA16:
3363 case R_SPARC_UA32:
3364 case R_SPARC_10:
3365 case R_SPARC_11:
3366 case R_SPARC_64:
3367 case R_SPARC_OLO10:
3368 case R_SPARC_HH22:
3369 case R_SPARC_HM10:
3370 case R_SPARC_LM22:
3371 case R_SPARC_7:
3372 case R_SPARC_5:
3373 case R_SPARC_6:
3374 case R_SPARC_HIX22:
3375 case R_SPARC_LOX10:
3376 case R_SPARC_H44:
3377 case R_SPARC_M44:
3378 case R_SPARC_L44:
2615994e 3379 case R_SPARC_H34:
22b75d0a
DM		 3380 case R_SPARC_UA64:
3381 r_sparc_plt32:
3348747a
NS		 3382 if ((input_section->flags & SEC_ALLOC) == 0
3383 || is_vxworks_tls)
22b75d0a
DM		 3384 break;
3385
0e1862bb 3386 if ((bfd_link_pic (info)
22b75d0a
DM		 3387 && (h == NULL
3388 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3389 || h->root.type != bfd_link_hash_undefweak)
3390 && (! howto->pc_relative
72fbc6e5 3391 || !SYMBOL_CALLS_LOCAL (info, h)))
0e1862bb 3392 || (!bfd_link_pic (info)
22b75d0a
DM		 3393 && h != NULL
3394 && h->dynindx != -1
3395 && !h->non_got_ref
3396 && ((h->def_dynamic
3397 && !h->def_regular)
3398 || h->root.type == bfd_link_hash_undefweak
3399 || h->root.type == bfd_link_hash_undefined)))
3400 {
3401 Elf_Internal_Rela outrel;
3402 bfd_boolean skip, relocate = FALSE;
3403
3404 /* When generating a shared object, these relocations
3405 are copied into the output file to be resolved at run
3406 time. */
3407
3408 BFD_ASSERT (sreloc != NULL);
3409
3410 skip = FALSE;
3411
3412 outrel.r_offset =
3413 _bfd_elf_section_offset (output_bfd, info, input_section,
3414 rel->r_offset);
3415 if (outrel.r_offset == (bfd_vma) -1)
3416 skip = TRUE;
3417 else if (outrel.r_offset == (bfd_vma) -2)
3418 skip = TRUE, relocate = TRUE;
3419 outrel.r_offset += (input_section->output_section->vma
3420 + input_section->output_offset);
3421
3422 /* Optimize unaligned reloc usage now that we know where
3423 it finally resides. */
3424 switch (r_type)
3425 {
3426 case R_SPARC_16:
3427 if (outrel.r_offset & 1)
3428 r_type = R_SPARC_UA16;
3429 break;
3430 case R_SPARC_UA16:
3431 if (!(outrel.r_offset & 1))
3432 r_type = R_SPARC_16;
3433 break;
3434 case R_SPARC_32:
3435 if (outrel.r_offset & 3)
3436 r_type = R_SPARC_UA32;
3437 break;
3438 case R_SPARC_UA32:
3439 if (!(outrel.r_offset & 3))
3440 r_type = R_SPARC_32;
3441 break;
3442 case R_SPARC_64:
3443 if (outrel.r_offset & 7)
3444 r_type = R_SPARC_UA64;
3445 break;
3446 case R_SPARC_UA64:
3447 if (!(outrel.r_offset & 7))
3448 r_type = R_SPARC_64;
3449 break;
3450 case R_SPARC_DISP8:
3451 case R_SPARC_DISP16:
3452 case R_SPARC_DISP32:
3453 case R_SPARC_DISP64:
3454 /* If the symbol is not dynamic, we should not keep
3455 a dynamic relocation. But an .rela.* slot has been
3456 allocated for it, output R_SPARC_NONE.
3457 FIXME: Add code tracking needed dynamic relocs as
3458 e.g. i386 has. */
3459 if (h->dynindx == -1)
3460 skip = TRUE, relocate = TRUE;
3461 break;
3462 }
3463
3464 if (skip)
3465 memset (&outrel, 0, sizeof outrel);
3466 /* h->dynindx may be -1 if the symbol was marked to
3467 become local. */
886a2506
NC		 3468 else if (h != NULL
3469 && h->dynindx != -1
3470 && (_bfd_sparc_elf_howto_table[r_type].pc_relative
0e1862bb 3471 || !bfd_link_pic (info)
72fbc6e5 3472 || !SYMBOLIC_BIND (info, h)
22b75d0a
DM		 3473 || !h->def_regular))
3474 {
3475 BFD_ASSERT (h->dynindx != -1);
3476 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3477 outrel.r_addend = rel->r_addend;
3478 }
3479 else
3480 {
7160c10d
JC		 3481 if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3482 || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
22b75d0a
DM		 3483 {
3484 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3485 0, R_SPARC_RELATIVE);
3486 outrel.r_addend = relocation + rel->r_addend;
3487 }
3488 else
3489 {
3490 long indx;
3491
74541ad4
AM		 3492 outrel.r_addend = relocation + rel->r_addend;
3493
22b75d0a 3494 if (is_plt)
72fbc6e5 3495 sec = htab->elf.splt;
22b75d0a
DM		 3496
3497 if (bfd_is_abs_section (sec))
3498 indx = 0;
3499 else if (sec == NULL || sec->owner == NULL)
3500 {
3501 bfd_set_error (bfd_error_bad_value);
3502 return FALSE;
3503 }
3504 else
3505 {
3506 asection *osec;
3507
74541ad4
AM		 3508 /* We are turning this relocation into one
3509 against a section symbol. It would be
3510 proper to subtract the symbol's value,
3511 osec->vma, from the emitted reloc addend,
3512 but ld.so expects buggy relocs. */
22b75d0a
DM		 3513 osec = sec->output_section;
3514 indx = elf_section_data (osec)->dynindx;
3515
74541ad4
AM		 3516 if (indx == 0)
3517 {
3518 osec = htab->elf.text_index_section;
3519 indx = elf_section_data (osec)->dynindx;
3520 }
3521
22b75d0a
DM		 3522 /* FIXME: we really should be able to link non-pic
3523 shared libraries. */
3524 if (indx == 0)
3525 {
3526 BFD_FAIL ();
4eca0228 3527 _bfd_error_handler
22b75d0a
DM		 3528 (_("%B: probably compiled without -fPIC?"),
3529 input_bfd);
3530 bfd_set_error (bfd_error_bad_value);
3531 return FALSE;
3532 }
3533 }
3534
74541ad4
AM		 3535 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3536 r_type);
22b75d0a
DM		 3537 }
3538 }
3539
39817122 3540 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3541
3542 /* This reloc will be computed at runtime, so there's no
3543 need to do anything now. */
3544 if (! relocate)
3545 continue;
3546 }
3547 break;
3548
3549 case R_SPARC_TLS_GD_HI22:
3550 if (! ABI_64_P (input_bfd)
3551 && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
3552 {
3553 /* R_SPARC_REV32 used the same reloc number as
3554 R_SPARC_TLS_GD_HI22. */
3555 r_type = R_SPARC_REV32;
3556 break;
3557 }
3558 /* Fall through */
3559
3560 case R_SPARC_TLS_GD_LO10:
3561 case R_SPARC_TLS_IE_HI22:
3562 case R_SPARC_TLS_IE_LO10:
3563 r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
3564 tls_type = GOT_UNKNOWN;
3565 if (h == NULL && local_got_offsets)
3566 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3567 else if (h != NULL)
3568 {
3569 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
0e1862bb
L		 3570 if (!bfd_link_pic (info)
3571 && h->dynindx == -1
3572 && tls_type == GOT_TLS_IE)
22b75d0a
DM		 3573 switch (SPARC_ELF_R_TYPE (rel->r_info))
3574 {
3575 case R_SPARC_TLS_GD_HI22:
3576 case R_SPARC_TLS_IE_HI22:
3577 r_type = R_SPARC_TLS_LE_HIX22;
3578 break;
3579 default:
3580 r_type = R_SPARC_TLS_LE_LOX10;
3581 break;
3582 }
3583 }
3584 if (tls_type == GOT_TLS_IE)
3585 switch (r_type)
3586 {
3587 case R_SPARC_TLS_GD_HI22:
3588 r_type = R_SPARC_TLS_IE_HI22;
3589 break;
3590 case R_SPARC_TLS_GD_LO10:
3591 r_type = R_SPARC_TLS_IE_LO10;
3592 break;
3593 }
3594
3595 if (r_type == R_SPARC_TLS_LE_HIX22)
3596 {
3597 relocation = tpoff (info, relocation);
3598 break;
3599 }
3600 if (r_type == R_SPARC_TLS_LE_LOX10)
3601 {
3602 /* Change add into xor. */
3603 relocation = tpoff (info, relocation);
3604 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3605 contents + rel->r_offset)
3606 | 0x80182000), contents + rel->r_offset);
3607 break;
3608 }
3609
3610 if (h != NULL)
3611 {
3612 off = h->got.offset;
3613 h->got.offset |= 1;
3614 }
3615 else
3616 {
3617 BFD_ASSERT (local_got_offsets != NULL);
3618 off = local_got_offsets[r_symndx];
3619 local_got_offsets[r_symndx] |= 1;
3620 }
3621
3622 r_sparc_tlsldm:
72fbc6e5 3623 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3624 abort ();
3625
3626 if ((off & 1) != 0)
3627 off &= ~1;
3628 else
3629 {
3630 Elf_Internal_Rela outrel;
3631 int dr_type, indx;
3632
72fbc6e5 3633 if (htab->elf.srelgot == NULL)
22b75d0a
DM		 3634 abort ();
3635
72fbc6e5
DM		 3636 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3637 htab->elf.sgot->contents + off);
3638 outrel.r_offset = (htab->elf.sgot->output_section->vma
3639 + htab->elf.sgot->output_offset + off);
22b75d0a
DM		 3640 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3641 if (r_type == R_SPARC_TLS_IE_HI22
3642 || r_type == R_SPARC_TLS_IE_LO10)
3643 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3644 else
3645 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3646 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3647 outrel.r_addend = relocation - dtpoff_base (info);
3648 else
3649 outrel.r_addend = 0;
3650 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
72fbc6e5 3651 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
22b75d0a
DM		 3652
3653 if (r_type == R_SPARC_TLS_GD_HI22
3654 || r_type == R_SPARC_TLS_GD_LO10)
3655 {
3656 if (indx == 0)
3657 {
3658 BFD_ASSERT (! unresolved_reloc);
3659 SPARC_ELF_PUT_WORD (htab, output_bfd,
3660 relocation - dtpoff_base (info),
72fbc6e5 3661 (htab->elf.sgot->contents + off
22b75d0a
DM		 3662 + SPARC_ELF_WORD_BYTES (htab)));
3663 }
3664 else
3665 {
3666 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3667 (htab->elf.sgot->contents + off
22b75d0a
DM		 3668 + SPARC_ELF_WORD_BYTES (htab)));
3669 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3670 SPARC_ELF_DTPOFF_RELOC (htab));
3671 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
72fbc6e5 3672 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
39817122 3673 &outrel);
22b75d0a
DM		 3674 }
3675 }
3676 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3677 {
3678 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3679 (htab->elf.sgot->contents + off
22b75d0a
DM		 3680 + SPARC_ELF_WORD_BYTES (htab)));
3681 }
3682 }
3683
3684 if (off >= (bfd_vma) -2)
3685 abort ();
3686
72fbc6e5 3687 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3688 unresolved_reloc = FALSE;
3689 howto = _bfd_sparc_elf_howto_table + r_type;
3690 break;
3691
3692 case R_SPARC_TLS_LDM_HI22:
3693 case R_SPARC_TLS_LDM_LO10:
0e1862bb 3694 if (! bfd_link_pic (info))
22b75d0a
DM		 3695 {
3696 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3697 continue;
3698 }
3699 off = htab->tls_ldm_got.offset;
3700 htab->tls_ldm_got.offset |= 1;
3701 goto r_sparc_tlsldm;
3702
3703 case R_SPARC_TLS_LDO_HIX22:
3704 case R_SPARC_TLS_LDO_LOX10:
0e1862bb 3705 if (bfd_link_pic (info))
22b75d0a
DM		 3706 {
3707 relocation -= dtpoff_base (info);
3708 break;
3709 }
3710
3711 r_type = (r_type == R_SPARC_TLS_LDO_HIX22
3712 ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
3713 /* Fall through. */
3714
3715 case R_SPARC_TLS_LE_HIX22:
3716 case R_SPARC_TLS_LE_LOX10:
0e1862bb 3717 if (bfd_link_pic (info))
22b75d0a
DM		 3718 {
3719 Elf_Internal_Rela outrel;
c7e2358a 3720 bfd_boolean skip;
22b75d0a
DM		 3721
3722 BFD_ASSERT (sreloc != NULL);
3723 skip = FALSE;
3724 outrel.r_offset =
3725 _bfd_elf_section_offset (output_bfd, info, input_section,
3726 rel->r_offset);
3727 if (outrel.r_offset == (bfd_vma) -1)
3728 skip = TRUE;
3729 else if (outrel.r_offset == (bfd_vma) -2)
c7e2358a 3730 skip = TRUE;
22b75d0a
DM		 3731 outrel.r_offset += (input_section->output_section->vma
3732 + input_section->output_offset);
3733 if (skip)
3734 memset (&outrel, 0, sizeof outrel);
3735 else
3736 {
3737 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3738 outrel.r_addend = relocation - dtpoff_base (info)
3739 + rel->r_addend;
3740 }
3741
39817122 3742 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3743 continue;
3744 }
3745 relocation = tpoff (info, relocation);
3746 break;
3747
3748 case R_SPARC_TLS_LDM_CALL:
0e1862bb 3749 if (! bfd_link_pic (info))
22b75d0a
DM		 3750 {
3751 /* mov %g0, %o0 */
3752 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3753 continue;
3754 }
3755 /* Fall through */
3756
3757 case R_SPARC_TLS_GD_CALL:
3758 tls_type = GOT_UNKNOWN;
3759 if (h == NULL && local_got_offsets)
3760 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3761 else if (h != NULL)
3762 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
0e1862bb 3763 if (! bfd_link_pic (info)
22b75d0a
DM		 3764 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3765 {
abd242a9 3766 Elf_Internal_Rela *rel2;
22b75d0a
DM		 3767 bfd_vma insn;
3768
0e1862bb 3769 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
22b75d0a
DM		 3770 {
3771 /* GD -> LE */
3772 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3773 continue;
3774 }
3775
3776 /* GD -> IE */
3777 if (rel + 1 < relend
3778 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3779 && rel[1].r_offset == rel->r_offset + 4
3780 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3781 && (((insn = bfd_get_32 (input_bfd,
3782 contents + rel[1].r_offset))
3783 >> 25) & 0x1f) == 8)
3784 {
3785 /* We have
3786 call __tls_get_addr, %tgd_call(foo)
3787 add %reg1, %reg2, %o0, %tgd_add(foo)
3788 and change it into IE:
3789 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3790 add %g7, %o0, %o0, %tie_add(foo).
3791 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3792 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3793 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3794 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3795 contents + rel->r_offset);
3796 bfd_put_32 (output_bfd, 0x9001c008,
3797 contents + rel->r_offset + 4);
3798 rel++;
3799 continue;
3800 }
3801
abd242a9
DM		 3802 /* We cannot just overwrite the delay slot instruction,
3803 as it might be what puts the %o0 argument to
3804 __tls_get_addr into place. So we have to transpose
3805 the delay slot with the add we patch in. */
3806 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3807 bfd_put_32 (output_bfd, insn,
3808 contents + rel->r_offset);
3809 bfd_put_32 (output_bfd, 0x9001c008,
3810 contents + rel->r_offset + 4);
3811
3812 rel2 = rel;
3813 while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3814 rel->r_offset + 4))
3815 != NULL)
3816 {
3817 /* If the instruction we moved has a relocation attached to
3818 it, adjust the offset so that it will apply to the correct
3819 instruction. */
3820 rel2->r_offset -= 4;
3821 }
22b75d0a
DM		 3822 continue;
3823 }
3824
3825 h = (struct elf_link_hash_entry *)
3826 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3827 FALSE, TRUE);
3828 BFD_ASSERT (h != NULL);
3829 r_type = R_SPARC_WPLT30;
3830 howto = _bfd_sparc_elf_howto_table + r_type;
3831 goto r_sparc_wplt30;
3832
3833 case R_SPARC_TLS_GD_ADD:
3834 tls_type = GOT_UNKNOWN;
3835 if (h == NULL && local_got_offsets)
3836 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3837 else if (h != NULL)
3838 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
0e1862bb 3839 if (! bfd_link_pic (info) || tls_type == GOT_TLS_IE)
22b75d0a
DM		 3840 {
3841 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3842 changed into IE:
3843 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3844 or LE:
3845 add %g7, %reg2, %reg3. */
3846 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
0e1862bb 3847 if ((h != NULL && h->dynindx != -1) || bfd_link_pic (info))
22b75d0a
DM		 3848 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
3849 else
3850 relocation = (insn & ~0x7c000) | 0x1c000;
3851 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3852 }
3853 continue;
3854
3855 case R_SPARC_TLS_LDM_ADD:
0e1862bb 3856 if (! bfd_link_pic (info))
22b75d0a
DM		 3857 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3858 continue;
3859
3860 case R_SPARC_TLS_LDO_ADD:
0e1862bb 3861 if (! bfd_link_pic (info))
22b75d0a
DM		 3862 {
3863 /* Change rs1 into %g7. */
3864 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3865 insn = (insn & ~0x7c000) | 0x1c000;
3866 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3867 }
3868 continue;
3869
3870 case R_SPARC_TLS_IE_LD:
3871 case R_SPARC_TLS_IE_LDX:
0e1862bb 3872 if (! bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
22b75d0a
DM		 3873 {
3874 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3875 int rs2 = insn & 0x1f;
3876 int rd = (insn >> 25) & 0x1f;
3877
3878 if (rs2 == rd)
3879 relocation = SPARC_NOP;
3880 else
3881 relocation = 0x80100000 | (insn & 0x3e00001f);
3882 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3883 }
3884 continue;
3885
3886 case R_SPARC_TLS_IE_ADD:
3887 /* Totally useless relocation. */
3888 continue;
3889
3890 case R_SPARC_TLS_DTPOFF32:
3891 case R_SPARC_TLS_DTPOFF64:
3892 relocation -= dtpoff_base (info);
3893 break;
3894
3895 default:
3896 break;
3897 }
3898
3899 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3900 because such sections are not SEC_ALLOC and thus ld.so will
3901 not process them. */
3902 if (unresolved_reloc
3903 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 3904 && h->def_dynamic)
3905 && _bfd_elf_section_offset (output_bfd, info, input_section,
3906 rel->r_offset) != (bfd_vma) -1)
4eca0228 3907 _bfd_error_handler
695344c0 3908 /* xgettext:c-format */
843fe662 3909 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
22b75d0a
DM		 3910 input_bfd,
3911 input_section,
3912 (long) rel->r_offset,
843fe662 3913 howto->name,
22b75d0a
DM		 3914 h->root.root.string);
3915
3916 r = bfd_reloc_continue;
3917 if (r_type == R_SPARC_OLO10)
3918 {
3919 bfd_vma x;
3920
3921 if (! ABI_64_P (output_bfd))
3922 abort ();
3923
3924 relocation += rel->r_addend;
3925 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3926
3927 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3928 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3929 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3930
3931 r = bfd_check_overflow (howto->complain_on_overflow,
3932 howto->bitsize, howto->rightshift,
3933 bfd_arch_bits_per_address (input_bfd),
3934 relocation);
3935 }
3936 else if (r_type == R_SPARC_WDISP16)
3937 {
3938 bfd_vma x;
3939
3940 relocation += rel->r_addend;
3941 relocation -= (input_section->output_section->vma
3942 + input_section->output_offset);
3943 relocation -= rel->r_offset;
3944
3945 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3946 x |= ((((relocation >> 2) & 0xc000) << 6)
3947 | ((relocation >> 2) & 0x3fff));
3948 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3949
2615994e
DM		 3950 r = bfd_check_overflow (howto->complain_on_overflow,
3951 howto->bitsize, howto->rightshift,
3952 bfd_arch_bits_per_address (input_bfd),
3953 relocation);
3954 }
3955 else if (r_type == R_SPARC_WDISP10)
3956 {
3957 bfd_vma x;
3958
3959 relocation += rel->r_addend;
3960 relocation -= (input_section->output_section->vma
3961 + input_section->output_offset);
3962 relocation -= rel->r_offset;
3963
3964 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3965 x |= ((((relocation >> 2) & 0x300) << 11)
3966 | (((relocation >> 2) & 0xff) << 5));
3967 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3968
22b75d0a
DM		 3969 r = bfd_check_overflow (howto->complain_on_overflow,
3970 howto->bitsize, howto->rightshift,
3971 bfd_arch_bits_per_address (input_bfd),
3972 relocation);
3973 }
3974 else if (r_type == R_SPARC_REV32)
3975 {
3976 bfd_vma x;
3977
3978 relocation = relocation + rel->r_addend;
3979
3980 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3981 x = x + relocation;
3982 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
3983 r = bfd_reloc_ok;
3984 }
3985 else if (r_type == R_SPARC_TLS_LDO_HIX22
3986 || r_type == R_SPARC_TLS_LE_HIX22)
3987 {
3988 bfd_vma x;
3989
3990 relocation += rel->r_addend;
3991 if (r_type == R_SPARC_TLS_LE_HIX22)
3992 relocation ^= MINUS_ONE;
3993
3994 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3995 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3996 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3997 r = bfd_reloc_ok;
3998 }
3999 else if (r_type == R_SPARC_TLS_LDO_LOX10
4000 || r_type == R_SPARC_TLS_LE_LOX10)
4001 {
4002 bfd_vma x;
4003
4004 relocation += rel->r_addend;
4005 relocation &= 0x3ff;
4006 if (r_type == R_SPARC_TLS_LE_LOX10)
4007 relocation |= 0x1c00;
4008
4009 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4010 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4011 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4012
4013 r = bfd_reloc_ok;
4014 }
00c50991 4015 else if (r_type == R_SPARC_HIX22
cc133f9f
JC		 4016 || r_type == R_SPARC_GOTDATA_HIX22
4017 || r_type == R_SPARC_GOTDATA_OP_HIX22)
22b75d0a
DM		 4018 {
4019 bfd_vma x;
4020
4021 relocation += rel->r_addend;
00c50991
DM		 4022 if (r_type == R_SPARC_HIX22
4023 || (bfd_signed_vma) relocation < 0)
4024 relocation = relocation ^ MINUS_ONE;
22b75d0a
DM		 4025
4026 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4027 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4028 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4029
4030 r = bfd_check_overflow (howto->complain_on_overflow,
4031 howto->bitsize, howto->rightshift,
4032 bfd_arch_bits_per_address (input_bfd),
4033 relocation);
4034 }
00c50991 4035 else if (r_type == R_SPARC_LOX10
cc133f9f
JC		 4036 || r_type == R_SPARC_GOTDATA_LOX10
4037 || r_type == R_SPARC_GOTDATA_OP_LOX10)
22b75d0a
DM		 4038 {
4039 bfd_vma x;
4040
4041 relocation += rel->r_addend;
00c50991
DM		 4042 if (r_type == R_SPARC_LOX10
4043 || (bfd_signed_vma) relocation < 0)
4044 relocation = (relocation & 0x3ff) | 0x1c00;
4045 else
4046 relocation = (relocation & 0x3ff);
22b75d0a
DM		 4047
4048 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4049 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4050 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4051
4052 r = bfd_reloc_ok;
4053 }
4054 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
4055 && sec_do_relax (input_section)
4056 && rel->r_offset + 4 < input_section->size)
4057 {
4058#define G0 0
4059#define O7 15
4060#define XCC (2 << 20)
4061#define COND(x) (((x)&0xf)<<25)
4062#define CONDA COND(0x8)
4063#define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
4064#define INSN_BA (F2(0,2) | CONDA)
4065#define INSN_OR F3(2, 0x2, 0)
4066#define INSN_NOP F2(0,4)
4067
4068 bfd_vma x, y;
4069
4070 /* If the instruction is a call with either:
4071 restore
4072 arithmetic instruction with rd == %o7
4073 where rs1 != %o7 and rs2 if it is register != %o7
4074 then we can optimize if the call destination is near
4075 by changing the call into a branch always. */
4076 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4077 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
4078 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
4079 {
4080 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
4081 || ((y & OP3(0x28)) == 0 /* arithmetic */
4082 && (y & RD(~0)) == RD(O7)))
4083 && (y & RS1(~0)) != RS1(O7)
4084 && ((y & F3I(~0))
4085 || (y & RS2(~0)) != RS2(O7)))
4086 {
4087 bfd_vma reloc;
4088
4089 reloc = relocation + rel->r_addend - rel->r_offset;
4090 reloc -= (input_section->output_section->vma
4091 + input_section->output_offset);
4092
4093 /* Ensure the branch fits into simm22. */
4094 if ((reloc & 3) == 0
4095 && ((reloc & ~(bfd_vma)0x7fffff) == 0
4096 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4097 {
4098 reloc >>= 2;
4099
4100 /* Check whether it fits into simm19. */
4101 if (((reloc & 0x3c0000) == 0
4102 || (reloc & 0x3c0000) == 0x3c0000)
4103 && (ABI_64_P (output_bfd)
4104 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4105 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4106 else
4107 x = INSN_BA | (reloc & 0x3fffff); /* ba */
4108 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4109 r = bfd_reloc_ok;
4110 if (rel->r_offset >= 4
4111 && (y & (0xffffffff ^ RS1(~0)))
4112 == (INSN_OR | RD(O7) | RS2(G0)))
4113 {
4114 bfd_vma z;
4115 unsigned int reg;
4116
4117 z = bfd_get_32 (input_bfd,
4118 contents + rel->r_offset - 4);
4119 if ((z & (0xffffffff ^ RD(~0)))
4120 != (INSN_OR | RS1(O7) | RS2(G0)))
597e138c 4121 continue;
22b75d0a
DM		 4122
4123 /* The sequence was
4124 or %o7, %g0, %rN
4125 call foo
4126 or %rN, %g0, %o7
4127
4128 If call foo was replaced with ba, replace
4129 or %rN, %g0, %o7 with nop. */
4130
4131 reg = (y & RS1(~0)) >> 14;
4132 if (reg != ((z & RD(~0)) >> 25)
4133 || reg == G0 || reg == O7)
597e138c 4134 continue;
22b75d0a
DM		 4135
4136 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4137 contents + rel->r_offset + 4);
4138 }
4139
4140 }
4141 }
4142 }
4143 }
4144
4145 if (r == bfd_reloc_continue)
d0c9aeb3
DM		 4146 {
4147do_relocation:
4148 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4149 contents, rel->r_offset,
4150 relocation, rel->r_addend);
4151 }
22b75d0a
DM		 4152 if (r != bfd_reloc_ok)
4153 {
4154 switch (r)
4155 {
4156 default:
4157 case bfd_reloc_outofrange:
4158 abort ();
4159 case bfd_reloc_overflow:
4160 {
4161 const char *name;
4162
68ffbac6 4163 /* The Solaris native linker silently disregards overflows.
dc669dc8
EB		 4164 We don't, but this breaks stabs debugging info, whose
4165 relocations are only 32-bits wide. Ignore overflows in
4166 this case and also for discarded entries. */
0bef263a
RO		 4167 if ((r_type == R_SPARC_32
4168 || r_type == R_SPARC_UA32
4169 || r_type == R_SPARC_DISP32)
dc669dc8
EB		 4170 && (((input_section->flags & SEC_DEBUGGING) != 0
4171 && strcmp (bfd_section_name (input_bfd,
4172 input_section),
4173 ".stab") == 0)
4174 || _bfd_elf_section_offset (output_bfd, info,
4175 input_section,
4176 rel->r_offset)
4177 == (bfd_vma)-1))
4178 break;
4179
22b75d0a 4180 if (h != NULL)
bb29dfea
EB		 4181 {
4182 /* Assume this is a call protected by other code that
4183 detect the symbol is undefined. If this is the case,
4184 we can safely ignore the overflow. If not, the
4185 program is hosed anyway, and a little warning isn't
4186 going to help. */
4187 if (h->root.type == bfd_link_hash_undefweak
4188 && howto->pc_relative)
4189 break;
4190
4191 name = NULL;
4192 }
22b75d0a
DM		 4193 else
4194 {
4195 name = bfd_elf_string_from_elf_section (input_bfd,
4196 symtab_hdr->sh_link,
4197 sym->st_name);
4198 if (name == NULL)
4199 return FALSE;
4200 if (*name == '\0')
4201 name = bfd_section_name (input_bfd, sec);
4202 }
1a72702b
AM		 4203 (*info->callbacks->reloc_overflow)
4204 (info, (h ? &h->root : NULL), name, howto->name,
4205 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
22b75d0a
DM		 4206 }
4207 break;
4208 }
4209 }
4210 }
4211
4212 return TRUE;
4213}
4214
910600e9
RS		 4215/* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4216 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4217 is the offset of the associated .got.plt entry from
4218 _GLOBAL_OFFSET_TABLE_. */
4219
4220static void
4221sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4222 bfd_vma plt_offset, bfd_vma plt_index,
4223 bfd_vma got_offset)
4224{
4225 bfd_vma got_base;
4226 const bfd_vma *plt_entry;
4227 struct _bfd_sparc_elf_link_hash_table *htab;
4228 bfd_byte *loc;
4229 Elf_Internal_Rela rela;
4230
4231 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4232 BFD_ASSERT (htab != NULL);
4233
0e1862bb 4234 if (bfd_link_pic (info))
910600e9
RS		 4235 {
4236 plt_entry = sparc_vxworks_shared_plt_entry;
4237 got_base = 0;
4238 }
4239 else
4240 {
4241 plt_entry = sparc_vxworks_exec_plt_entry;
4242 got_base = (htab->elf.hgot->root.u.def.value
4243 + htab->elf.hgot->root.u.def.section->output_offset
4244 + htab->elf.hgot->root.u.def.section->output_section->vma);
4245 }
4246
4247 /* Fill in the entry in the procedure linkage table. */
4248 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
72fbc6e5 4249 htab->elf.splt->contents + plt_offset);
910600e9 4250 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
72fbc6e5 4251 htab->elf.splt->contents + plt_offset + 4);
910600e9 4252 bfd_put_32 (output_bfd, plt_entry[2],
72fbc6e5 4253 htab->elf.splt->contents + plt_offset + 8);
910600e9 4254 bfd_put_32 (output_bfd, plt_entry[3],
72fbc6e5 4255 htab->elf.splt->contents + plt_offset + 12);
910600e9 4256 bfd_put_32 (output_bfd, plt_entry[4],
72fbc6e5 4257 htab->elf.splt->contents + plt_offset + 16);
910600e9 4258 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
72fbc6e5 4259 htab->elf.splt->contents + plt_offset + 20);
910600e9
RS		 4260 /* PC-relative displacement for a branch to the start of
4261 the PLT section. */
4262 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4263 & 0x003fffff),
72fbc6e5 4264 htab->elf.splt->contents + plt_offset + 24);
910600e9 4265 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
72fbc6e5 4266 htab->elf.splt->contents + plt_offset + 28);
910600e9
RS		 4267
4268 /* Fill in the .got.plt entry, pointing initially at the
4269 second half of the PLT entry. */
72fbc6e5 4270 BFD_ASSERT (htab->elf.sgotplt != NULL);
910600e9 4271 bfd_put_32 (output_bfd,
72fbc6e5
DM		 4272 htab->elf.splt->output_section->vma
4273 + htab->elf.splt->output_offset
910600e9 4274 + plt_offset + 20,
72fbc6e5 4275 htab->elf.sgotplt->contents + got_offset);
910600e9
RS		 4276
4277 /* Add relocations to .rela.plt.unloaded. */
0e1862bb 4278 if (!bfd_link_pic (info))
910600e9
RS		 4279 {
4280 loc = (htab->srelplt2->contents
4281 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4282
4283 /* Relocate the initial sethi. */
72fbc6e5
DM		 4284 rela.r_offset = (htab->elf.splt->output_section->vma
4285 + htab->elf.splt->output_offset
910600e9
RS		 4286 + plt_offset);
4287 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4288 rela.r_addend = got_offset;
4289 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4290 loc += sizeof (Elf32_External_Rela);
4291
4292 /* Likewise the following or. */
4293 rela.r_offset += 4;
4294 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4295 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4296 loc += sizeof (Elf32_External_Rela);
4297
4298 /* Relocate the .got.plt entry. */
72fbc6e5
DM		 4299 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4300 + htab->elf.sgotplt->output_offset
910600e9
RS		 4301 + got_offset);
4302 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4303 rela.r_addend = plt_offset + 20;
4304 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4305 }
4306}
4307
22b75d0a
DM		 4308/* Finish up dynamic symbol handling. We set the contents of various
4309 dynamic sections here. */
4310
4311bfd_boolean
4312_bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4313 struct bfd_link_info *info,
4314 struct elf_link_hash_entry *h,
4315 Elf_Internal_Sym *sym)
4316{
22b75d0a 4317 struct _bfd_sparc_elf_link_hash_table *htab;
39817122 4318 const struct elf_backend_data *bed;
22b75d0a
DM		 4319
4320 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4321 BFD_ASSERT (htab != NULL);
39817122 4322 bed = get_elf_backend_data (output_bfd);
22b75d0a
DM		 4323
4324 if (h->plt.offset != (bfd_vma) -1)
4325 {
4326 asection *splt;
4327 asection *srela;
4328 Elf_Internal_Rela rela;
4329 bfd_byte *loc;
910600e9 4330 bfd_vma r_offset, got_offset;
22b75d0a
DM		 4331 int rela_index;
4332
d0c9aeb3
DM		 4333 /* When building a static executable, use .iplt and
4334 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4335 if (htab->elf.splt != NULL)
4336 {
4337 splt = htab->elf.splt;
4338 srela = htab->elf.srelplt;
4339 }
4340 else
4341 {
4342 splt = htab->elf.iplt;
4343 srela = htab->elf.irelplt;
4344 }
22b75d0a 4345
d0c9aeb3
DM		 4346 if (splt == NULL || srela == NULL)
4347 abort ();
22b75d0a 4348
22b75d0a 4349 /* Fill in the entry in the .rela.plt section. */
910600e9 4350 if (htab->is_vxworks)
22b75d0a 4351 {
910600e9
RS		 4352 /* Work out the index of this PLT entry. */
4353 rela_index = ((h->plt.offset - htab->plt_header_size)
4354 / htab->plt_entry_size);
4355
4356 /* Calculate the offset of the associated .got.plt entry.
4357 The first three entries are reserved. */
4358 got_offset = (rela_index + 3) * 4;
4359
4360 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4361 rela_index, got_offset);
4362
4363
4364 /* On VxWorks, the relocation points to the .got.plt entry,
4365 not the .plt entry. */
72fbc6e5
DM		 4366 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4367 + htab->elf.sgotplt->output_offset
910600e9 4368 + got_offset);
22b75d0a 4369 rela.r_addend = 0;
d0c9aeb3
DM		 4370 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4371 R_SPARC_JMP_SLOT);
22b75d0a
DM		 4372 }
4373 else
4374 {
d0c9aeb3
DM		 4375 bfd_boolean ifunc = FALSE;
4376
910600e9
RS		 4377 /* Fill in the entry in the procedure linkage table. */
4378 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4379 h->plt.offset, splt->size,
4380 &r_offset);
4381
d0c9aeb3
DM		 4382 if (h == NULL
4383 || h->dynindx == -1
0e1862bb 4384 || ((bfd_link_executable (info)
d0c9aeb3
DM		 4385 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4386 && h->def_regular
4387 && h->type == STT_GNU_IFUNC))
4388 {
4389 ifunc = TRUE;
4390 BFD_ASSERT (h == NULL
4391 || (h->type == STT_GNU_IFUNC
4392 && h->def_regular
4393 && (h->root.type == bfd_link_hash_defined
4394 || h->root.type == bfd_link_hash_defweak)));
4395 }
4396
910600e9
RS		 4397 rela.r_offset = r_offset
4398 + (splt->output_section->vma + splt->output_offset);
d0c9aeb3
DM		 4399 if (ABI_64_P (output_bfd)
4400 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
910600e9 4401 {
d0c9aeb3
DM		 4402 if (ifunc)
4403 {
4404 rela.r_addend = (h->root.u.def.section->output_section->vma
4405 + h->root.u.def.section->output_offset
4406 + h->root.u.def.value);
4407 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4408 R_SPARC_IRELATIVE);
4409 }
4410 else
4411 {
4412 rela.r_addend = (-(h->plt.offset + 4)
4413 - splt->output_section->vma
4414 - splt->output_offset);
4415 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4416 R_SPARC_JMP_SLOT);
4417 }
910600e9
RS		 4418 }
4419 else
4420 {
d0c9aeb3
DM		 4421 if (ifunc)
4422 {
4423 rela.r_addend = (h->root.u.def.section->output_section->vma
4424 + h->root.u.def.section->output_offset
4425 + h->root.u.def.value);
4426 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4427 R_SPARC_JMP_IREL);
4428 }
4429 else
4430 {
4431 rela.r_addend = 0;
4432 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4433 R_SPARC_JMP_SLOT);
4434 }
910600e9 4435 }
22b75d0a 4436 }
22b75d0a
DM		 4437
4438 /* Adjust for the first 4 reserved elements in the .plt section
4439 when setting the offset in the .rela.plt section.
4440 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4441 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4442
4443 loc = srela->contents;
39817122
RS		 4444 loc += rela_index * bed->s->sizeof_rela;
4445 bed->s->swap_reloca_out (output_bfd, &rela, loc);
22b75d0a
DM		 4446
4447 if (!h->def_regular)
4448 {
4449 /* Mark the symbol as undefined, rather than as defined in
4450 the .plt section. Leave the value alone. */
4451 sym->st_shndx = SHN_UNDEF;
4452 /* If the symbol is weak, we do need to clear the value.
4453 Otherwise, the PLT entry would provide a definition for
4454 the symbol even if the symbol wasn't defined anywhere,
4455 and so the symbol would never be NULL. */
4456 if (!h->ref_regular_nonweak)
4457 sym->st_value = 0;
4458 }
4459 }
4460
4461 if (h->got.offset != (bfd_vma) -1
4462 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4463 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
4464 {
4465 asection *sgot;
4466 asection *srela;
4467 Elf_Internal_Rela rela;
4468
4469 /* This symbol has an entry in the GOT. Set it up. */
4470
72fbc6e5
DM		 4471 sgot = htab->elf.sgot;
4472 srela = htab->elf.srelgot;
22b75d0a
DM		 4473 BFD_ASSERT (sgot != NULL && srela != NULL);
4474
4475 rela.r_offset = (sgot->output_section->vma
4476 + sgot->output_offset
4477 + (h->got.offset &~ (bfd_vma) 1));
4478
4479 /* If this is a -Bsymbolic link, and the symbol is defined
4480 locally, we just want to emit a RELATIVE reloc. Likewise if
4481 the symbol was forced to be local because of a version file.
4482 The entry in the global offset table will already have been
4483 initialized in the relocate_section function. */
0e1862bb 4484 if (! bfd_link_pic (info)
d0c9aeb3
DM		 4485 && h->type == STT_GNU_IFUNC
4486 && h->def_regular)
4487 {
4488 asection *plt;
4489
4490 /* We load the GOT entry with the PLT entry. */
4491 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4492 SPARC_ELF_PUT_WORD (htab, output_bfd,
4493 (plt->output_section->vma
4494 + plt->output_offset + h->plt.offset),
4495 htab->elf.sgot->contents
4496 + (h->got.offset & ~(bfd_vma) 1));
4497 return TRUE;
4498 }
0e1862bb 4499 else if (bfd_link_pic (info)
d0c9aeb3 4500 && SYMBOL_REFERENCES_LOCAL (info, h))
22b75d0a
DM		 4501 {
4502 asection *sec = h->root.u.def.section;
d0c9aeb3
DM		 4503 if (h->type == STT_GNU_IFUNC)
4504 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4505 else
4506 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
22b75d0a
DM		 4507 rela.r_addend = (h->root.u.def.value
4508 + sec->output_section->vma
4509 + sec->output_offset);
4510 }
4511 else
4512 {
4513 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4514 rela.r_addend = 0;
4515 }
4516
4517 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4518 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
39817122 4519 sparc_elf_append_rela (output_bfd, srela, &rela);
22b75d0a
DM		 4520 }
4521
4522 if (h->needs_copy)
4523 {
4524 asection *s;
4525 Elf_Internal_Rela rela;
4526
4527 /* This symbols needs a copy reloc. Set it up. */
4528 BFD_ASSERT (h->dynindx != -1);
4529
3d4d4302
AM		 4530 s = bfd_get_linker_section (h->root.u.def.section->owner,
4531 ".rela.bss");
22b75d0a
DM		 4532 BFD_ASSERT (s != NULL);
4533
4534 rela.r_offset = (h->root.u.def.value
4535 + h->root.u.def.section->output_section->vma
4536 + h->root.u.def.section->output_offset);
4537 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4538 rela.r_addend = 0;
39817122 4539 sparc_elf_append_rela (output_bfd, s, &rela);
22b75d0a
DM		 4540 }
4541
910600e9
RS		 4542 /* Mark some specially defined symbols as absolute. On VxWorks,
4543 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4544 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
d0c9aeb3 4545 if (sym != NULL
9637f6ef 4546 && (h == htab->elf.hdynamic
d0c9aeb3
DM		 4547 || (!htab->is_vxworks
4548 && (h == htab->elf.hgot || h == htab->elf.hplt))))
22b75d0a
DM		 4549 sym->st_shndx = SHN_ABS;
4550
4551 return TRUE;
4552}
4553
4554/* Finish up the dynamic sections. */
4555
22b75d0a 4556static bfd_boolean
39817122
RS		 4557sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4558 bfd *dynobj, asection *sdyn,
4559 asection *splt ATTRIBUTE_UNUSED)
22b75d0a 4560{
910600e9 4561 struct _bfd_sparc_elf_link_hash_table *htab;
39817122
RS		 4562 const struct elf_backend_data *bed;
4563 bfd_byte *dyncon, *dynconend;
4564 size_t dynsize;
4565 int stt_regidx = -1;
4566 bfd_boolean abi_64_p;
22b75d0a 4567
910600e9 4568 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4569 BFD_ASSERT (htab != NULL);
39817122
RS		 4570 bed = get_elf_backend_data (output_bfd);
4571 dynsize = bed->s->sizeof_dyn;
4572 dynconend = sdyn->contents + sdyn->size;
4573 abi_64_p = ABI_64_P (output_bfd);
4574 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
22b75d0a
DM		 4575 {
4576 Elf_Internal_Dyn dyn;
22b75d0a
DM		 4577 bfd_boolean size;
4578
39817122 4579 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
22b75d0a 4580
64f52338 4581 if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
22b75d0a 4582 {
910600e9
RS		 4583 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4584 not to the start of the PLT. */
72fbc6e5 4585 if (htab->elf.sgotplt)
910600e9 4586 {
72fbc6e5
DM		 4587 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4588 + htab->elf.sgotplt->output_offset);
39817122 4589 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
910600e9
RS		 4590 }
4591 }
7a2b07ff
NS		 4592 else if (htab->is_vxworks
4593 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4594 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
39817122
RS		 4595 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4596 {
4597 if (stt_regidx == -1)
4598 {
4599 stt_regidx =
4600 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4601 if (stt_regidx == -1)
4602 return FALSE;
4603 }
4604 dyn.d_un.d_val = stt_regidx++;
4605 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4606 }
910600e9
RS		 4607 else
4608 {
ce558b89
AM		 4609 asection *s;
4610
910600e9
RS		 4611 switch (dyn.d_tag)
4612 {
ce558b89
AM		 4613 case DT_PLTGOT:
4614 s = htab->elf.splt;
4615 size = FALSE;
4616 break;
4617 case DT_PLTRELSZ:
4618 s = htab->elf.srelplt;
4619 size = TRUE;
4620 break;
4621 case DT_JMPREL:
4622 s = htab->elf.srelplt;
4623 size = FALSE;
4624 break;
4625 default:
4626 continue;
910600e9 4627 }
22b75d0a 4628
ce558b89
AM		 4629 if (s == NULL)
4630 dyn.d_un.d_val = 0;
4631 else
22b75d0a 4632 {
ce558b89
AM		 4633 if (!size)
4634 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
22b75d0a 4635 else
ce558b89 4636 dyn.d_un.d_val = s->size;
22b75d0a 4637 }
ce558b89 4638 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
22b75d0a
DM		 4639 }
4640 }
4641 return TRUE;
4642}
4643
910600e9
RS		 4644/* Install the first PLT entry in a VxWorks executable and make sure that
4645 .rela.plt.unloaded relocations have the correct symbol indexes. */
4646
4647static void
4648sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4649{
4650 struct _bfd_sparc_elf_link_hash_table *htab;
4651 Elf_Internal_Rela rela;
4652 bfd_vma got_base;
4653 bfd_byte *loc;
4654
4655 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4656 BFD_ASSERT (htab != NULL);
910600e9
RS		 4657
4658 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4659 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4660 + htab->elf.hgot->root.u.def.section->output_offset
4661 + htab->elf.hgot->root.u.def.value);
4662
4663 /* Install the initial PLT entry. */
4664 bfd_put_32 (output_bfd,
4665 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
72fbc6e5 4666 htab->elf.splt->contents);
910600e9
RS		 4667 bfd_put_32 (output_bfd,
4668 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
72fbc6e5 4669 htab->elf.splt->contents + 4);
910600e9
RS		 4670 bfd_put_32 (output_bfd,
4671 sparc_vxworks_exec_plt0_entry[2],
72fbc6e5 4672 htab->elf.splt->contents + 8);
910600e9
RS		 4673 bfd_put_32 (output_bfd,
4674 sparc_vxworks_exec_plt0_entry[3],
72fbc6e5 4675 htab->elf.splt->contents + 12);
910600e9
RS		 4676 bfd_put_32 (output_bfd,
4677 sparc_vxworks_exec_plt0_entry[4],
72fbc6e5 4678 htab->elf.splt->contents + 16);
910600e9
RS		 4679
4680 loc = htab->srelplt2->contents;
4681
4682 /* Add an unloaded relocation for the initial entry's "sethi". */
72fbc6e5
DM		 4683 rela.r_offset = (htab->elf.splt->output_section->vma
4684 + htab->elf.splt->output_offset);
910600e9
RS		 4685 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4686 rela.r_addend = 8;
4687 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4688 loc += sizeof (Elf32_External_Rela);
4689
4690 /* Likewise the following "or". */
4691 rela.r_offset += 4;
4692 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4693 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4694 loc += sizeof (Elf32_External_Rela);
4695
4696 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4697 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4698 in which symbols were output. */
4699 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4700 {
4701 Elf_Internal_Rela rel;
4702
4703 /* The entry's initial "sethi" (against _G_O_T_). */
4704 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4705 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4706 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4707 loc += sizeof (Elf32_External_Rela);
4708
4709 /* The following "or" (also against _G_O_T_). */
4710 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4711 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4712 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4713 loc += sizeof (Elf32_External_Rela);
4714
4715 /* The .got.plt entry (against _P_L_T_). */
4716 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4717 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4718 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4719 loc += sizeof (Elf32_External_Rela);
4720 }
4721}
4722
4723/* Install the first PLT entry in a VxWorks shared object. */
4724
4725static void
4726sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4727{
4728 struct _bfd_sparc_elf_link_hash_table *htab;
4729 unsigned int i;
4730
4731 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4732 BFD_ASSERT (htab != NULL);
4733
910600e9
RS		 4734 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4735 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
72fbc6e5 4736 htab->elf.splt->contents + i * 4);
910600e9
RS		 4737}
4738
d0c9aeb3
DM		 4739/* Finish up local dynamic symbol handling. We set the contents of
4740 various dynamic sections here. */
4741
4742static bfd_boolean
4743finish_local_dynamic_symbol (void **slot, void *inf)
4744{
4745 struct elf_link_hash_entry *h
4746 = (struct elf_link_hash_entry *) *slot;
4747 struct bfd_link_info *info
68ffbac6 4748 = (struct bfd_link_info *) inf;
d0c9aeb3
DM		 4749
4750 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4751 h, NULL);
4752}
4753
22b75d0a
DM		 4754bfd_boolean
4755_bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4756{
4757 bfd *dynobj;
4758 asection *sdyn;
4759 struct _bfd_sparc_elf_link_hash_table *htab;
4760
4761 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4762 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 4763 dynobj = htab->elf.dynobj;
4764
3d4d4302 4765 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
22b75d0a
DM		 4766
4767 if (elf_hash_table (info)->dynamic_sections_created)
4768 {
4769 asection *splt;
22b75d0a 4770
3d4d4302 4771 splt = htab->elf.splt;
22b75d0a
DM		 4772 BFD_ASSERT (splt != NULL && sdyn != NULL);
4773
39817122
RS		 4774 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4775 return FALSE;
22b75d0a
DM		 4776
4777 /* Initialize the contents of the .plt section. */
4778 if (splt->size > 0)
4779 {
910600e9
RS		 4780 if (htab->is_vxworks)
4781 {
0e1862bb 4782 if (bfd_link_pic (info))
910600e9
RS		 4783 sparc_vxworks_finish_shared_plt (output_bfd, info);
4784 else
4785 sparc_vxworks_finish_exec_plt (output_bfd, info);
4786 }
22b75d0a
DM		 4787 else
4788 {
910600e9
RS		 4789 memset (splt->contents, 0, htab->plt_header_size);
4790 if (!ABI_64_P (output_bfd))
4791 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4792 splt->contents + splt->size - 4);
22b75d0a
DM		 4793 }
4794 }
4795
387f8054
MR		 4796 if (elf_section_data (splt->output_section) != NULL)
4797 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4798 = ((htab->is_vxworks || !ABI_64_P (output_bfd))
4799 ? 0 : htab->plt_entry_size);
22b75d0a
DM		 4800 }
4801
4802 /* Set the first entry in the global offset table to the address of
4803 the dynamic section. */
72fbc6e5 4804 if (htab->elf.sgot && htab->elf.sgot->size > 0)
22b75d0a
DM		 4805 {
4806 bfd_vma val = (sdyn ?
4807 sdyn->output_section->vma + sdyn->output_offset :
4808 0);
4809
72fbc6e5 4810 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
22b75d0a
DM		 4811 }
4812
72fbc6e5
DM		 4813 if (htab->elf.sgot)
4814 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
22b75d0a
DM		 4815 SPARC_ELF_WORD_BYTES (htab);
4816
d0c9aeb3
DM		 4817 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4818 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4819
22b75d0a
DM		 4820 return TRUE;
4821}
4822
4823\f
4824/* Set the right machine number for a SPARC ELF file. */
4825
4826bfd_boolean
4827_bfd_sparc_elf_object_p (bfd *abfd)
4828{
4f26fb3a
JM		 4829 obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
4830 obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
4831 obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
4832
4833 unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
4834 unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
4835 | ELF_SPARC_HWCAP_VIS3
4836 | ELF_SPARC_HWCAP_HPC);
4837 unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
4838 | ELF_SPARC_HWCAP_DES
4839 | ELF_SPARC_HWCAP_KASUMI
4840 | ELF_SPARC_HWCAP_CAMELLIA
4841 | ELF_SPARC_HWCAP_MD5
4842 | ELF_SPARC_HWCAP_SHA1
4843 | ELF_SPARC_HWCAP_SHA256
4844 | ELF_SPARC_HWCAP_SHA512
4845 | ELF_SPARC_HWCAP_MPMUL
4846 | ELF_SPARC_HWCAP_MONT
4847 | ELF_SPARC_HWCAP_CRC32C
4848 | ELF_SPARC_HWCAP_CBCOND
4849 | ELF_SPARC_HWCAP_PAUSE);
4850 unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
4851 | ELF_SPARC_HWCAP_IMA);
4852 unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
4853 | ELF_SPARC_HWCAP2_MWAIT
4854 | ELF_SPARC_HWCAP2_XMPMUL
4855 | ELF_SPARC_HWCAP2_XMONT);
4856
22b75d0a
DM		 4857 if (ABI_64_P (abfd))
4858 {
4859 unsigned long mach = bfd_mach_sparc_v9;
4860
4f26fb3a
JM		 4861 if (hwcaps2->i & v9m_hwcaps2_mask)
4862 mach = bfd_mach_sparc_v9m;
4863 else if (hwcaps->i & v9v_hwcaps_mask)
4864 mach = bfd_mach_sparc_v9v;
4865 else if (hwcaps->i & v9e_hwcaps_mask)
4866 mach = bfd_mach_sparc_v9e;
4867 else if (hwcaps->i & v9d_hwcaps_mask)
4868 mach = bfd_mach_sparc_v9d;
4869 else if (hwcaps->i & v9c_hwcaps_mask)
4870 mach = bfd_mach_sparc_v9c;
4871 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
22b75d0a
DM		 4872 mach = bfd_mach_sparc_v9b;
4873 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4874 mach = bfd_mach_sparc_v9a;
4875 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4876 }
4877 else
4878 {
4879 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4880 {
4f26fb3a
JM		 4881 if (hwcaps2->i & v9m_hwcaps2_mask)
4882 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4883 bfd_mach_sparc_v8plusm);
4884 else if (hwcaps->i & v9v_hwcaps_mask)
4885 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4886 bfd_mach_sparc_v8plusv);
4887 else if (hwcaps->i & v9e_hwcaps_mask)
4888 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4889 bfd_mach_sparc_v8pluse);
4890 else if (hwcaps->i & v9d_hwcaps_mask)
4891 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4892 bfd_mach_sparc_v8plusd);
4893 else if (hwcaps->i & v9c_hwcaps_mask)
4894 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4895 bfd_mach_sparc_v8plusc);
4896 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
22b75d0a
DM		 4897 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4898 bfd_mach_sparc_v8plusb);
4899 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4900 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4901 bfd_mach_sparc_v8plusa);
4902 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4903 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4904 bfd_mach_sparc_v8plus);
4905 else
4906 return FALSE;
4907 }
4908 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4909 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4910 bfd_mach_sparc_sparclite_le);
4911 else
4912 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4913 }
4914}
4915
4916/* Return address for Ith PLT stub in section PLT, for relocation REL
4917 or (bfd_vma) -1 if it should not be included. */
4918
4919bfd_vma
4920_bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
4921{
4922 if (ABI_64_P (plt->owner))
4923 {
4924 bfd_vma j;
4925
4926 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
4927 if (i < PLT64_LARGE_THRESHOLD)
4928 return plt->vma + i * PLT64_ENTRY_SIZE;
4929
4930 j = (i - PLT64_LARGE_THRESHOLD) % 160;
4931 i -= j;
4932 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
4933 }
4934 else
4935 return rel->address;
4936}
9e8c70f9
DM		 4937
4938/* Merge backend specific data from an object file to the output
4939 object file when linking. */
4940
4941bfd_boolean
50e03d47 4942_bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
9e8c70f9 4943{
50e03d47 4944 bfd *obfd = info->output_bfd;
9e8c70f9
DM		 4945 obj_attribute *in_attr, *in_attrs;
4946 obj_attribute *out_attr, *out_attrs;
4947
4948 if (!elf_known_obj_attributes_proc (obfd)[0].i)
4949 {
4950 /* This is the first object. Copy the attributes. */
4951 _bfd_elf_copy_obj_attributes (ibfd, obfd);
4952
4953 /* Use the Tag_null value to indicate the attributes have been
4954 initialized. */
4955 elf_known_obj_attributes_proc (obfd)[0].i = 1;
4956
4957 return TRUE;
4958 }
4959
4960 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4961 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4962
4963 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
4964 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
1b786873 4965
3d68f91c
JM		 4966 out_attr->i |= in_attr->i;
4967 out_attr->type = 1;
9e8c70f9 4968
3d68f91c
JM		 4969 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
4970 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
1b786873 4971
9e8c70f9 4972 out_attr->i |= in_attr->i;
209be8d2 4973 out_attr->type = 1;
9e8c70f9
DM		 4974
4975 /* Merge Tag_compatibility attributes and any common GNU ones. */
50e03d47 4976 _bfd_elf_merge_object_attributes (ibfd, info);
9e8c70f9
DM		 4977
4978 return TRUE;
4979}
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