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Enable the Dot Product extension by default for Armv8.4-a.
[deliverable/binutils-gdb.git] / bfd / elfxx-sparc.c
CommitLineData
22b75d0a 1/* SPARC-specific support for ELF
2571583a 2 Copyright (C) 2005-2017 Free Software Foundation, Inc.
22b75d0a
DM		 3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
cd123cb7 8 the Free Software Foundation; either version 3 of the License, or
22b75d0a
DM		 9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
cd123cb7
NC		 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
22b75d0a
DM		 21
22/* This file handles functionality common to the different SPARC ABI's. */
23
22b75d0a 24#include "sysdep.h"
3db64b00 25#include "bfd.h"
22b75d0a
DM		 26#include "bfdlink.h"
27#include "libbfd.h"
910600e9 28#include "libiberty.h"
22b75d0a
DM		 29#include "elf-bfd.h"
30#include "elf/sparc.h"
31#include "opcode/sparc.h"
32#include "elfxx-sparc.h"
910600e9 33#include "elf-vxworks.h"
d0c9aeb3
DM		 34#include "objalloc.h"
35#include "hashtab.h"
22b75d0a
DM		 36
37/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
38#define MINUS_ONE (~ (bfd_vma) 0)
39
40#define ABI_64_P(abfd) \
41 (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
42
43/* The relocation "howto" table. */
44
45/* Utility for performing the standard initial work of an instruction
46 relocation.
47 *PRELOCATION will contain the relocated item.
48 *PINSN will contain the instruction from the input stream.
49 If the result is `bfd_reloc_other' the caller can continue with
50 performing the relocation. Otherwise it must stop and return the
51 value to its caller. */
52
53static bfd_reloc_status_type
54init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 55 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 56 bfd_vma *prelocation, bfd_vma *pinsn)
57{
58 bfd_vma relocation;
59 reloc_howto_type *howto = reloc_entry->howto;
60
61 if (output_bfd != (bfd *) NULL
62 && (symbol->flags & BSF_SECTION_SYM) == 0
63 && (! howto->partial_inplace
64 || reloc_entry->addend == 0))
65 {
66 reloc_entry->address += input_section->output_offset;
67 return bfd_reloc_ok;
68 }
69
70 /* This works because partial_inplace is FALSE. */
71 if (output_bfd != NULL)
72 return bfd_reloc_continue;
73
74 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
75 return bfd_reloc_outofrange;
76
77 relocation = (symbol->value
78 + symbol->section->output_section->vma
79 + symbol->section->output_offset);
80 relocation += reloc_entry->addend;
81 if (howto->pc_relative)
82 {
83 relocation -= (input_section->output_section->vma
84 + input_section->output_offset);
85 relocation -= reloc_entry->address;
86 }
87
88 *prelocation = relocation;
89 *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
90 return bfd_reloc_other;
91}
92
93/* For unsupported relocs. */
94
95static bfd_reloc_status_type
96sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
97 arelent *reloc_entry ATTRIBUTE_UNUSED,
98 asymbol *symbol ATTRIBUTE_UNUSED,
2c3fc389 99 void * data ATTRIBUTE_UNUSED,
22b75d0a
DM		 100 asection *input_section ATTRIBUTE_UNUSED,
101 bfd *output_bfd ATTRIBUTE_UNUSED,
102 char **error_message ATTRIBUTE_UNUSED)
103{
104 return bfd_reloc_notsupported;
105}
106
107/* Handle the WDISP16 reloc. */
108
109static bfd_reloc_status_type
110sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 111 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 112 char **error_message ATTRIBUTE_UNUSED)
113{
114 bfd_vma relocation;
115 bfd_vma insn;
116 bfd_reloc_status_type status;
117
118 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
119 input_section, output_bfd, &relocation, &insn);
120 if (status != bfd_reloc_other)
121 return status;
122
123 insn &= ~ (bfd_vma) 0x303fff;
124 insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
125 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
126
127 if ((bfd_signed_vma) relocation < - 0x40000
128 || (bfd_signed_vma) relocation > 0x3ffff)
129 return bfd_reloc_overflow;
130 else
131 return bfd_reloc_ok;
132}
133
2615994e
DM		 134/* Handle the WDISP10 reloc. */
135
136static bfd_reloc_status_type
137sparc_elf_wdisp10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 138 void * data, asection *input_section, bfd *output_bfd,
2615994e
DM		 139 char **error_message ATTRIBUTE_UNUSED)
140{
141 bfd_vma relocation;
142 bfd_vma insn;
143 bfd_reloc_status_type status;
144
145 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
146 input_section, output_bfd, &relocation, &insn);
147 if (status != bfd_reloc_other)
148 return status;
149
150 insn &= ~ (bfd_vma) 0x181fe0;
151 insn |= (((relocation >> 2) & 0x300) << 11)
152 | (((relocation >> 2) & 0xff) << 5);
153 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
154
155 if ((bfd_signed_vma) relocation < - 0x1000
156 || (bfd_signed_vma) relocation > 0xfff)
157 return bfd_reloc_overflow;
158 else
159 return bfd_reloc_ok;
160}
161
22b75d0a
DM		 162/* Handle the HIX22 reloc. */
163
164static bfd_reloc_status_type
165sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 166 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 167 char **error_message ATTRIBUTE_UNUSED)
168{
169 bfd_vma relocation;
170 bfd_vma insn;
171 bfd_reloc_status_type status;
172
173 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
174 input_section, output_bfd, &relocation, &insn);
175 if (status != bfd_reloc_other)
176 return status;
177
178 relocation ^= MINUS_ONE;
179 insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
180 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
181
182 if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
183 return bfd_reloc_overflow;
184 else
185 return bfd_reloc_ok;
186}
187
188/* Handle the LOX10 reloc. */
189
190static bfd_reloc_status_type
191sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 192 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 193 char **error_message ATTRIBUTE_UNUSED)
194{
195 bfd_vma relocation;
196 bfd_vma insn;
197 bfd_reloc_status_type status;
198
199 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
200 input_section, output_bfd, &relocation, &insn);
201 if (status != bfd_reloc_other)
202 return status;
203
204 insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
205 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
206
207 return bfd_reloc_ok;
208}
209
210static reloc_howto_type _bfd_sparc_elf_howto_table[] =
211{
6346d5ca 212 HOWTO(R_SPARC_NONE, 0,3, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
22b75d0a
DM		 213 HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
214 HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
215 HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
216 HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
217 HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
218 HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
219 HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
220 HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
221 HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
222 HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
223 HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
224 HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
225 HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
226 HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
227 HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
228 HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
229 HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
230 HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
231 HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
232 HOWTO(R_SPARC_GLOB_DAT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",FALSE,0,0x00000000,TRUE),
233 HOWTO(R_SPARC_JMP_SLOT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",FALSE,0,0x00000000,TRUE),
234 HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
235 HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
236 HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
237 HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
238 HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
239 HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
240 HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
241 HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
242 HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
243 HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
244 HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE),
245 HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE),
246 HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE),
247 HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE),
248 HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE),
249 HOWTO(R_SPARC_PC_HH22, 42,2,22,TRUE, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", FALSE,0,0x003fffff,TRUE),
250 HOWTO(R_SPARC_PC_HM10, 32,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", FALSE,0,0x000003ff,TRUE),
251 HOWTO(R_SPARC_PC_LM22, 10,2,22,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", FALSE,0,0x003fffff,TRUE),
252 HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
253 HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
254 HOWTO(R_SPARC_UNUSED_42, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",FALSE,0,0x00000000,TRUE),
255 HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
256 HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
257 HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
258 HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE),
259 HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE),
260 HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE),
261 HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE),
262 HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE),
263 HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE),
264 HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE),
265 HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE),
266 HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE),
267 HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
268 HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE),
269 HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE),
270 HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",FALSE,0,0x00000000,TRUE),
271 HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE),
272 HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE),
273 HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE),
274 HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",FALSE,0,0x00000000,TRUE),
275 HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE),
276 HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE),
277 HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE),
278 HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",FALSE,0,0x00000000,TRUE),
279 HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE),
280 HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE),
281 HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",FALSE,0,0x00000000,TRUE),
282 HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",FALSE,0,0x00000000,TRUE),
283 HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",FALSE,0,0x00000000,TRUE),
284 HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE),
285 HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE),
286 HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",FALSE,0,0x00000000,TRUE),
287 HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",FALSE,0,0x00000000,TRUE),
288 HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE),
289 HOWTO(R_SPARC_TLS_DTPOFF64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",FALSE,0,MINUS_ONE,TRUE),
290 HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE),
739f7f82
DM		 291 HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE),
292 HOWTO(R_SPARC_GOTDATA_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",FALSE,0,0x003fffff, FALSE),
293 HOWTO(R_SPARC_GOTDATA_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",FALSE,0,0x000003ff, FALSE),
294 HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",FALSE,0,0x003fffff, FALSE),
295 HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",FALSE,0,0x000003ff, FALSE),
296 HOWTO(R_SPARC_GOTDATA_OP,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOTDATA_OP",FALSE,0,0x00000000,TRUE),
2615994e
DM		 297 HOWTO(R_SPARC_H34,12,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc,"R_SPARC_H34",FALSE,0,0x003fffff,FALSE),
298 HOWTO(R_SPARC_SIZE32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE32",FALSE,0,0xffffffff,TRUE),
299 HOWTO(R_SPARC_SIZE64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE64",FALSE,0,MINUS_ONE, TRUE),
300 HOWTO(R_SPARC_WDISP10,2,2,10,TRUE, 0,complain_overflow_signed,sparc_elf_wdisp10_reloc,"R_SPARC_WDISP10",FALSE,0,0x00000000,TRUE),
22b75d0a 301};
d0c9aeb3
DM		 302static reloc_howto_type sparc_jmp_irel_howto =
303 HOWTO(R_SPARC_JMP_IREL, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_IREL",FALSE,0,0x00000000,TRUE);
304static reloc_howto_type sparc_irelative_howto =
305 HOWTO(R_SPARC_IRELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_IRELATIVE",FALSE,0,0x00000000,TRUE);
22b75d0a
DM		 306static reloc_howto_type sparc_vtinherit_howto =
307 HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE);
308static reloc_howto_type sparc_vtentry_howto =
309 HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", FALSE,0,0, FALSE);
310static reloc_howto_type sparc_rev32_howto =
311 HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE);
312
22b75d0a
DM		 313reloc_howto_type *
314_bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
315 bfd_reloc_code_real_type code)
316{
679b7c76
DM		 317 /* We explicitly handle each relocation type in the switch
318 instead of using a lookup table for efficiency. */
22b75d0a
DM		 319 switch (code)
320 {
679b7c76
DM		 321 case BFD_RELOC_NONE:
322 return &_bfd_sparc_elf_howto_table[R_SPARC_NONE];
323
324 case BFD_RELOC_8:
325 return &_bfd_sparc_elf_howto_table[R_SPARC_8];
326
327 case BFD_RELOC_16:
328 return &_bfd_sparc_elf_howto_table[R_SPARC_16];
329
330 case BFD_RELOC_32:
331 return &_bfd_sparc_elf_howto_table[R_SPARC_32];
332
333 case BFD_RELOC_8_PCREL:
334 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP8];
335
336 case BFD_RELOC_16_PCREL:
337 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP16];
338
339 case BFD_RELOC_32_PCREL:
340 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP32];
341
342 case BFD_RELOC_32_PCREL_S2:
343 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP30];
344
345 case BFD_RELOC_SPARC_WDISP22:
346 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP22];
347
348 case BFD_RELOC_HI22:
349 return &_bfd_sparc_elf_howto_table[R_SPARC_HI22];
350
351 case BFD_RELOC_SPARC22:
352 return &_bfd_sparc_elf_howto_table[R_SPARC_22];
353
354 case BFD_RELOC_SPARC13:
355 return &_bfd_sparc_elf_howto_table[R_SPARC_13];
356
357 case BFD_RELOC_LO10:
358 return &_bfd_sparc_elf_howto_table[R_SPARC_LO10];
359
360 case BFD_RELOC_SPARC_GOT10:
361 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT10];
362
363 case BFD_RELOC_SPARC_GOT13:
364 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT13];
365
366 case BFD_RELOC_SPARC_GOT22:
367 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT22];
368
369 case BFD_RELOC_SPARC_PC10:
370 return &_bfd_sparc_elf_howto_table[R_SPARC_PC10];
371
372 case BFD_RELOC_SPARC_PC22:
373 return &_bfd_sparc_elf_howto_table[R_SPARC_PC22];
374
375 case BFD_RELOC_SPARC_WPLT30:
376 return &_bfd_sparc_elf_howto_table[R_SPARC_WPLT30];
377
378 case BFD_RELOC_SPARC_COPY:
379 return &_bfd_sparc_elf_howto_table[R_SPARC_COPY];
380
381 case BFD_RELOC_SPARC_GLOB_DAT:
382 return &_bfd_sparc_elf_howto_table[R_SPARC_GLOB_DAT];
383
384 case BFD_RELOC_SPARC_JMP_SLOT:
385 return &_bfd_sparc_elf_howto_table[R_SPARC_JMP_SLOT];
386
387 case BFD_RELOC_SPARC_RELATIVE:
388 return &_bfd_sparc_elf_howto_table[R_SPARC_RELATIVE];
389
390 case BFD_RELOC_SPARC_UA32:
391 return &_bfd_sparc_elf_howto_table[R_SPARC_UA32];
392
393 case BFD_RELOC_SPARC_PLT32:
394 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT32];
395
396 case BFD_RELOC_SPARC_10:
397 return &_bfd_sparc_elf_howto_table[R_SPARC_10];
398
399 case BFD_RELOC_SPARC_11:
400 return &_bfd_sparc_elf_howto_table[R_SPARC_11];
401
402 case BFD_RELOC_SPARC_64:
403 return &_bfd_sparc_elf_howto_table[R_SPARC_64];
404
405 case BFD_RELOC_SPARC_OLO10:
406 return &_bfd_sparc_elf_howto_table[R_SPARC_OLO10];
407
408 case BFD_RELOC_SPARC_HH22:
409 return &_bfd_sparc_elf_howto_table[R_SPARC_HH22];
410
411 case BFD_RELOC_SPARC_HM10:
412 return &_bfd_sparc_elf_howto_table[R_SPARC_HM10];
413
414 case BFD_RELOC_SPARC_LM22:
415 return &_bfd_sparc_elf_howto_table[R_SPARC_LM22];
416
417 case BFD_RELOC_SPARC_PC_HH22:
418 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HH22];
419
420 case BFD_RELOC_SPARC_PC_HM10:
421 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HM10];
422
423 case BFD_RELOC_SPARC_PC_LM22:
424 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_LM22];
425
426 case BFD_RELOC_SPARC_WDISP16:
427 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP16];
428
429 case BFD_RELOC_SPARC_WDISP19:
430 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP19];
431
432 case BFD_RELOC_SPARC_7:
433 return &_bfd_sparc_elf_howto_table[R_SPARC_7];
434
435 case BFD_RELOC_SPARC_5:
436 return &_bfd_sparc_elf_howto_table[R_SPARC_5];
437
438 case BFD_RELOC_SPARC_6:
439 return &_bfd_sparc_elf_howto_table[R_SPARC_6];
440
441 case BFD_RELOC_SPARC_DISP64:
442 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP64];
443
444 case BFD_RELOC_SPARC_PLT64:
445 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT64];
446
447 case BFD_RELOC_SPARC_HIX22:
448 return &_bfd_sparc_elf_howto_table[R_SPARC_HIX22];
449
450 case BFD_RELOC_SPARC_LOX10:
451 return &_bfd_sparc_elf_howto_table[R_SPARC_LOX10];
452
453 case BFD_RELOC_SPARC_H44:
454 return &_bfd_sparc_elf_howto_table[R_SPARC_H44];
455
456 case BFD_RELOC_SPARC_M44:
457 return &_bfd_sparc_elf_howto_table[R_SPARC_M44];
458
459 case BFD_RELOC_SPARC_L44:
460 return &_bfd_sparc_elf_howto_table[R_SPARC_L44];
461
462 case BFD_RELOC_SPARC_REGISTER:
463 return &_bfd_sparc_elf_howto_table[R_SPARC_REGISTER];
464
465 case BFD_RELOC_SPARC_UA64:
466 return &_bfd_sparc_elf_howto_table[R_SPARC_UA64];
467
468 case BFD_RELOC_SPARC_UA16:
469 return &_bfd_sparc_elf_howto_table[R_SPARC_UA16];
470
471 case BFD_RELOC_SPARC_TLS_GD_HI22:
472 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_HI22];
473
474 case BFD_RELOC_SPARC_TLS_GD_LO10:
475 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_LO10];
476
477 case BFD_RELOC_SPARC_TLS_GD_ADD:
478 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_ADD];
479
480 case BFD_RELOC_SPARC_TLS_GD_CALL:
481 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_CALL];
482
483 case BFD_RELOC_SPARC_TLS_LDM_HI22:
484 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_HI22];
485
486 case BFD_RELOC_SPARC_TLS_LDM_LO10:
487 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_LO10];
488
489 case BFD_RELOC_SPARC_TLS_LDM_ADD:
490 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_ADD];
491
492 case BFD_RELOC_SPARC_TLS_LDM_CALL:
493 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_CALL];
494
495 case BFD_RELOC_SPARC_TLS_LDO_HIX22:
496 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_HIX22];
497
498 case BFD_RELOC_SPARC_TLS_LDO_LOX10:
499 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_LOX10];
500
501 case BFD_RELOC_SPARC_TLS_LDO_ADD:
502 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_ADD];
503
504 case BFD_RELOC_SPARC_TLS_IE_HI22:
505 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_HI22];
506
507 case BFD_RELOC_SPARC_TLS_IE_LO10:
508 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LO10];
509
510 case BFD_RELOC_SPARC_TLS_IE_LD:
511 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LD];
512
513 case BFD_RELOC_SPARC_TLS_IE_LDX:
514 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LDX];
515
516 case BFD_RELOC_SPARC_TLS_IE_ADD:
517 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_ADD];
518
519 case BFD_RELOC_SPARC_TLS_LE_HIX22:
520 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_HIX22];
521
522 case BFD_RELOC_SPARC_TLS_LE_LOX10:
523 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_LOX10];
524
525 case BFD_RELOC_SPARC_TLS_DTPMOD32:
526 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD32];
527
528 case BFD_RELOC_SPARC_TLS_DTPMOD64:
529 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD64];
530
531 case BFD_RELOC_SPARC_TLS_DTPOFF32:
532 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF32];
533
534 case BFD_RELOC_SPARC_TLS_DTPOFF64:
535 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF64];
536
537 case BFD_RELOC_SPARC_TLS_TPOFF32:
538 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF32];
539
540 case BFD_RELOC_SPARC_TLS_TPOFF64:
541 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF64];
542
543 case BFD_RELOC_SPARC_GOTDATA_HIX22:
544 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_HIX22];
545
546 case BFD_RELOC_SPARC_GOTDATA_LOX10:
547 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_LOX10];
548
549 case BFD_RELOC_SPARC_GOTDATA_OP_HIX22:
550 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_HIX22];
551
552 case BFD_RELOC_SPARC_GOTDATA_OP_LOX10:
553 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_LOX10];
554
555 case BFD_RELOC_SPARC_GOTDATA_OP:
556 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP];
557
2615994e
DM		 558 case BFD_RELOC_SPARC_H34:
559 return &_bfd_sparc_elf_howto_table[R_SPARC_H34];
560
561 case BFD_RELOC_SPARC_SIZE32:
562 return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE32];
563
564 case BFD_RELOC_SPARC_SIZE64:
565 return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE64];
566
567 case BFD_RELOC_SPARC_WDISP10:
568 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP10];
569
d0c9aeb3
DM		 570 case BFD_RELOC_SPARC_JMP_IREL:
571 return &sparc_jmp_irel_howto;
572
573 case BFD_RELOC_SPARC_IRELATIVE:
574 return &sparc_irelative_howto;
575
22b75d0a
DM		 576 case BFD_RELOC_VTABLE_INHERIT:
577 return &sparc_vtinherit_howto;
578
579 case BFD_RELOC_VTABLE_ENTRY:
580 return &sparc_vtentry_howto;
581
582 case BFD_RELOC_SPARC_REV32:
583 return &sparc_rev32_howto;
584
585 default:
679b7c76 586 break;
22b75d0a
DM		 587 }
588 bfd_set_error (bfd_error_bad_value);
589 return NULL;
590}
591
157090f7
AM		 592reloc_howto_type *
593_bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
594 const char *r_name)
595{
596 unsigned int i;
597
598 for (i = 0;
599 i < (sizeof (_bfd_sparc_elf_howto_table)
600 / sizeof (_bfd_sparc_elf_howto_table[0]));
601 i++)
602 if (_bfd_sparc_elf_howto_table[i].name != NULL
603 && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
604 return &_bfd_sparc_elf_howto_table[i];
605
606 if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
607 return &sparc_vtinherit_howto;
608 if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
609 return &sparc_vtentry_howto;
610 if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
611 return &sparc_rev32_howto;
612
613 return NULL;
614}
615
22b75d0a
DM		 616reloc_howto_type *
617_bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type)
618{
619 switch (r_type)
620 {
d0c9aeb3
DM		 621 case R_SPARC_JMP_IREL:
622 return &sparc_jmp_irel_howto;
623
624 case R_SPARC_IRELATIVE:
625 return &sparc_irelative_howto;
626
22b75d0a
DM		 627 case R_SPARC_GNU_VTINHERIT:
628 return &sparc_vtinherit_howto;
629
630 case R_SPARC_GNU_VTENTRY:
631 return &sparc_vtentry_howto;
632
633 case R_SPARC_REV32:
634 return &sparc_rev32_howto;
635
636 default:
d0fb9a8d
JJ		 637 if (r_type >= (unsigned int) R_SPARC_max_std)
638 {
4eca0228 639 _bfd_error_handler (_("invalid relocation type %d"), (int) r_type);
d0fb9a8d
JJ		 640 r_type = R_SPARC_NONE;
641 }
22b75d0a
DM		 642 return &_bfd_sparc_elf_howto_table[r_type];
643 }
644}
645
646/* Both 32-bit and 64-bit sparc encode this in an identical manner,
647 so just take advantage of that. */
648#define SPARC_ELF_R_TYPE(r_info) \
649 ((r_info) & 0xff)
650
651void
652_bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
653 Elf_Internal_Rela *dst)
654{
655 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
656
657 cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type);
658}
659\f
660
661/* The nop opcode we use. */
662#define SPARC_NOP 0x01000000
663
664#define SPARC_INSN_BYTES 4
665
666/* The SPARC linker needs to keep track of the number of relocs that it
667 decides to copy as dynamic relocs in check_relocs for each symbol.
668 This is so that it can later discard them if they are found to be
669 unnecessary. We store the information in a field extending the
670 regular ELF linker hash table. */
671
672struct _bfd_sparc_elf_dyn_relocs
673{
674 struct _bfd_sparc_elf_dyn_relocs *next;
675
676 /* The input section of the reloc. */
677 asection *sec;
678
679 /* Total number of relocs copied for the input section. */
680 bfd_size_type count;
681
682 /* Number of pc-relative relocs copied for the input section. */
683 bfd_size_type pc_count;
684};
685
bb1dd176
QZ		 686/* Is an undefined weak symbol resolved to 0 ?
687 Reference to an undefined weak symbol is resolved to 0 when
688 building an executable if it isn't dynamic and
689 1. Has non-GOT/non-PLT relocations in text section.
690 Or
691 2. Has no GOT/PLT relocation. */
692#define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
693 ((EH)->elf.root.type == bfd_link_hash_undefweak \
694 && bfd_link_executable (INFO) \
695 && (_bfd_sparc_elf_hash_table (INFO)->interp == NULL \
696 || !(EH)->has_got_reloc \
697 || (EH)->has_non_got_reloc \
698 || !(INFO)->dynamic_undefined_weak))
699
22b75d0a
DM		 700/* SPARC ELF linker hash entry. */
701
702struct _bfd_sparc_elf_link_hash_entry
703{
704 struct elf_link_hash_entry elf;
705
706 /* Track dynamic relocs copied for this symbol. */
707 struct _bfd_sparc_elf_dyn_relocs *dyn_relocs;
708
709#define GOT_UNKNOWN 0
710#define GOT_NORMAL 1
711#define GOT_TLS_GD 2
712#define GOT_TLS_IE 3
713 unsigned char tls_type;
bb1dd176
QZ		 714
715 /* Symbol has GOT or PLT relocations. */
716 unsigned int has_got_reloc : 1;
717
718 /* Symbol has non-GOT/non-PLT relocations in text sections. */
719 unsigned int has_non_got_reloc : 1;
720
22b75d0a
DM		 721};
722
723#define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
724
725struct _bfd_sparc_elf_obj_tdata
726{
727 struct elf_obj_tdata root;
728
729 /* tls_type for each local got entry. */
730 char *local_got_tls_type;
731
732 /* TRUE if TLS GD relocs has been seen for this object. */
733 bfd_boolean has_tlsgd;
734};
735
736#define _bfd_sparc_elf_tdata(abfd) \
737 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
738
739#define _bfd_sparc_elf_local_got_tls_type(abfd) \
740 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
741
0ffa91dd
NC		 742#define is_sparc_elf(bfd) \
743 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
744 && elf_tdata (bfd) != NULL \
4dfe6ac6 745 && elf_object_id (bfd) == SPARC_ELF_DATA)
0ffa91dd 746
22b75d0a
DM		 747bfd_boolean
748_bfd_sparc_elf_mkobject (bfd *abfd)
749{
0ffa91dd 750 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
4dfe6ac6 751 SPARC_ELF_DATA);
22b75d0a
DM		 752}
753
754static void
91d6fa6a 755sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 756{
91d6fa6a 757 bfd_put_32 (abfd, val, ptr);
22b75d0a
DM		 758}
759
760static void
91d6fa6a 761sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 762{
91d6fa6a 763 bfd_put_64 (abfd, val, ptr);
22b75d0a
DM		 764}
765
766static void
39817122 767sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
22b75d0a 768{
39817122
RS		 769 const struct elf_backend_data *bed;
770 bfd_byte *loc;
22b75d0a 771
39817122
RS		 772 bed = get_elf_backend_data (abfd);
773 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
774 bed->s->swap_reloca_out (abfd, rel, loc);
22b75d0a
DM		 775}
776
777static bfd_vma
e459dc7b 778sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 779 bfd_vma rel_index ATTRIBUTE_UNUSED,
e459dc7b 780 bfd_vma type ATTRIBUTE_UNUSED)
22b75d0a 781{
91d6fa6a 782 return ELF64_R_INFO (rel_index,
22b75d0a
DM		 783 (in_rel ?
784 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
785 type) : type));
786}
787
788static bfd_vma
789sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 790 bfd_vma rel_index, bfd_vma type)
22b75d0a 791{
91d6fa6a 792 return ELF32_R_INFO (rel_index, type);
22b75d0a
DM		 793}
794
795static bfd_vma
796sparc_elf_r_symndx_64 (bfd_vma r_info)
797{
e8be8da4
DM		 798 bfd_vma r_symndx = ELF32_R_SYM (r_info);
799 return (r_symndx >> 24);
22b75d0a
DM		 800}
801
802static bfd_vma
803sparc_elf_r_symndx_32 (bfd_vma r_info)
804{
805 return ELF32_R_SYM (r_info);
806}
807
808/* PLT/GOT stuff */
809
810#define PLT32_ENTRY_SIZE 12
811#define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
812
813/* The first four entries in a 32-bit procedure linkage table are reserved,
814 and the initial contents are unimportant (we zero them out).
815 Subsequent entries look like this. See the SVR4 ABI SPARC
816 supplement to see how this works. */
817
818/* sethi %hi(.-.plt0),%g1. We fill in the address later. */
819#define PLT32_ENTRY_WORD0 0x03000000
820/* b,a .plt0. We fill in the offset later. */
821#define PLT32_ENTRY_WORD1 0x30800000
822/* nop. */
823#define PLT32_ENTRY_WORD2 SPARC_NOP
824
825static int
826sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
827 bfd_vma max ATTRIBUTE_UNUSED,
828 bfd_vma *r_offset)
829{
830 bfd_put_32 (output_bfd,
831 PLT32_ENTRY_WORD0 + offset,
832 splt->contents + offset);
833 bfd_put_32 (output_bfd,
834 (PLT32_ENTRY_WORD1
835 + (((- (offset + 4)) >> 2) & 0x3fffff)),
836 splt->contents + offset + 4);
837 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
838 splt->contents + offset + 8);
839
840 *r_offset = offset;
841
842 return offset / PLT32_ENTRY_SIZE - 4;
843}
844
845/* Both the headers and the entries are icache aligned. */
846#define PLT64_ENTRY_SIZE 32
847#define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
848#define PLT64_LARGE_THRESHOLD 32768
849
850static int
851sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
852 bfd_vma max, bfd_vma *r_offset)
853{
854 unsigned char *entry = splt->contents + offset;
855 const unsigned int nop = SPARC_NOP;
91d6fa6a 856 int plt_index;
22b75d0a
DM		 857
858 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
859 {
860 unsigned int sethi, ba;
861
862 *r_offset = offset;
863
91d6fa6a 864 plt_index = (offset / PLT64_ENTRY_SIZE);
22b75d0a 865
91d6fa6a 866 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
22b75d0a
DM		 867 ba = 0x30680000
868 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
869
870 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
871 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
872 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
873 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
874 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
875 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
876 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
877 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
878 }
879 else
880 {
881 unsigned char *ptr;
882 unsigned int ldx;
883 int block, last_block, ofs, last_ofs, chunks_this_block;
884 const int insn_chunk_size = (6 * 4);
885 const int ptr_chunk_size = (1 * 8);
886 const int entries_per_block = 160;
887 const int block_size = entries_per_block * (insn_chunk_size
888 + ptr_chunk_size);
889
890 /* Entries 32768 and higher are grouped into blocks of 160.
891 The blocks are further subdivided into 160 sequences of
892 6 instructions and 160 pointers. If a block does not require
893 the full 160 entries, let's say it requires N, then there
894 will be N sequences of 6 instructions and N pointers. */
895
896 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
897 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
898
899 block = offset / block_size;
900 last_block = max / block_size;
901 if (block != last_block)
902 {
903 chunks_this_block = 160;
904 }
905 else
906 {
907 last_ofs = max % block_size;
908 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
909 }
910
911 ofs = offset % block_size;
912
91d6fa6a 913 plt_index = (PLT64_LARGE_THRESHOLD +
22b75d0a
DM		 914 (block * 160) +
915 (ofs / insn_chunk_size));
916
917 ptr = splt->contents
918 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
919 + (block * block_size)
920 + (chunks_this_block * insn_chunk_size)
921 + (ofs / insn_chunk_size) * ptr_chunk_size;
922
923 *r_offset = (bfd_vma) (ptr - splt->contents);
924
925 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
926
927 /* mov %o7,%g5
928 call .+8
929 nop
930 ldx [%o7+P],%g1
931 jmpl %o7+%g1,%g1
932 mov %g5,%o7 */
933 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
934 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
935 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
936 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
937 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
938 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
939
940 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
941 }
942
91d6fa6a 943 return plt_index - 4;
22b75d0a
DM		 944}
945
910600e9
RS		 946/* The format of the first PLT entry in a VxWorks executable. */
947static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
948 {
949 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
950 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
951 0xc4008000, /* ld [ %g2 ], %g2 */
952 0x81c08000, /* jmp %g2 */
953 0x01000000 /* nop */
954 };
955
956/* The format of subsequent PLT entries. */
957static const bfd_vma sparc_vxworks_exec_plt_entry[] =
958 {
959 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
960 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
961 0xc2004000, /* ld [ %g1 ], %g1 */
962 0x81c04000, /* jmp %g1 */
963 0x01000000, /* nop */
964 0x03000000, /* sethi %hi(f@pltindex), %g1 */
965 0x10800000, /* b _PLT_resolve */
966 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
967 };
968
969/* The format of the first PLT entry in a VxWorks shared object. */
970static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
971 {
972 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
973 0x81c08000, /* jmp %g2 */
974 0x01000000 /* nop */
975 };
976
977/* The format of subsequent PLT entries. */
978static const bfd_vma sparc_vxworks_shared_plt_entry[] =
979 {
980 0x03000000, /* sethi %hi(f@got), %g1 */
981 0x82106000, /* or %g1, %lo(f@got), %g1 */
982 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
983 0x81c04000, /* jmp %g1 */
984 0x01000000, /* nop */
985 0x03000000, /* sethi %hi(f@pltindex), %g1 */
986 0x10800000, /* b _PLT_resolve */
987 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
988 };
989
22b75d0a
DM		 990#define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
991 htab->put_word(bfd, val, ptr)
992
22b75d0a
DM		 993#define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
994 htab->r_info(in_rel, index, type)
995
996#define SPARC_ELF_R_SYMNDX(htab, r_info) \
997 htab->r_symndx(r_info)
998
999#define SPARC_ELF_WORD_BYTES(htab) \
1000 htab->bytes_per_word
1001
1002#define SPARC_ELF_RELA_BYTES(htab) \
1003 htab->bytes_per_rela
1004
1005#define SPARC_ELF_DTPOFF_RELOC(htab) \
1006 htab->dtpoff_reloc
1007
1008#define SPARC_ELF_DTPMOD_RELOC(htab) \
1009 htab->dtpmod_reloc
1010
1011#define SPARC_ELF_TPOFF_RELOC(htab) \
1012 htab->tpoff_reloc
1013
1014#define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
1015 htab->build_plt_entry (obfd, splt, off, max, r_off)
1016
1017/* Create an entry in an SPARC ELF linker hash table. */
1018
1019static struct bfd_hash_entry *
1020link_hash_newfunc (struct bfd_hash_entry *entry,
1021 struct bfd_hash_table *table, const char *string)
1022{
1023 /* Allocate the structure if it has not already been allocated by a
1024 subclass. */
1025 if (entry == NULL)
1026 {
1027 entry = bfd_hash_allocate (table,
1028 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1029 if (entry == NULL)
1030 return entry;
1031 }
1032
1033 /* Call the allocation method of the superclass. */
1034 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1035 if (entry != NULL)
1036 {
1037 struct _bfd_sparc_elf_link_hash_entry *eh;
1038
1039 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
1040 eh->dyn_relocs = NULL;
1041 eh->tls_type = GOT_UNKNOWN;
bb1dd176
QZ		 1042 eh->has_got_reloc = 0;
1043 eh->has_non_got_reloc = 0;
22b75d0a
DM		 1044 }
1045
1046 return entry;
1047}
1048
1049/* The name of the dynamic interpreter. This is put in the .interp
1050 section. */
1051
1052#define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1053#define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1054
d0c9aeb3
DM		 1055/* Compute a hash of a local hash entry. We use elf_link_hash_entry
1056 for local symbol so that we can handle local STT_GNU_IFUNC symbols
1057 as global symbol. We reuse indx and dynstr_index for local symbol
1058 hash since they aren't used by global symbols in this backend. */
1059
1060static hashval_t
1061elf_sparc_local_htab_hash (const void *ptr)
1062{
1063 struct elf_link_hash_entry *h
1064 = (struct elf_link_hash_entry *) ptr;
1065 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1066}
1067
1068/* Compare local hash entries. */
1069
1070static int
1071elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1072{
1073 struct elf_link_hash_entry *h1
1074 = (struct elf_link_hash_entry *) ptr1;
1075 struct elf_link_hash_entry *h2
1076 = (struct elf_link_hash_entry *) ptr2;
1077
1078 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1079}
1080
1081/* Find and/or create a hash entry for local symbol. */
1082
1083static struct elf_link_hash_entry *
1084elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1085 bfd *abfd, const Elf_Internal_Rela *rel,
1086 bfd_boolean create)
1087{
1088 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1089 asection *sec = abfd->sections;
1090 unsigned long r_symndx;
1091 hashval_t h;
1092 void **slot;
1093
1094 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1095 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1096
1097 e.elf.indx = sec->id;
1098 e.elf.dynstr_index = r_symndx;
1099 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1100 create ? INSERT : NO_INSERT);
1101
1102 if (!slot)
1103 return NULL;
1104
1105 if (*slot)
1106 {
1107 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1108 return &ret->elf;
1109 }
1110
1111 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1112 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1113 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1114 if (ret)
1115 {
1116 memset (ret, 0, sizeof (*ret));
1117 ret->elf.indx = sec->id;
1118 ret->elf.dynstr_index = r_symndx;
1119 ret->elf.dynindx = -1;
1120 ret->elf.plt.offset = (bfd_vma) -1;
1121 ret->elf.got.offset = (bfd_vma) -1;
1122 *slot = ret;
1123 }
1124 return &ret->elf;
1125}
1126
68faa637
AM		 1127/* Destroy a SPARC ELF linker hash table. */
1128
d495ab0d
AM		 1129static void
1130_bfd_sparc_elf_link_hash_table_free (bfd *obfd)
68faa637
AM		 1131{
1132 struct _bfd_sparc_elf_link_hash_table *htab
d495ab0d 1133 = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
68faa637
AM		 1134
1135 if (htab->loc_hash_table)
1136 htab_delete (htab->loc_hash_table);
1137 if (htab->loc_hash_memory)
1138 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
d495ab0d 1139 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM		 1140}
1141
22b75d0a
DM		 1142/* Create a SPARC ELF linker hash table. */
1143
1144struct bfd_link_hash_table *
1145_bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1146{
1147 struct _bfd_sparc_elf_link_hash_table *ret;
1148 bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1149
1150 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1151 if (ret == NULL)
1152 return NULL;
1153
1154 if (ABI_64_P (abfd))
1155 {
1156 ret->put_word = sparc_put_word_64;
22b75d0a
DM		 1157 ret->r_info = sparc_elf_r_info_64;
1158 ret->r_symndx = sparc_elf_r_symndx_64;
22b75d0a
DM		 1159 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1160 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1161 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1162 ret->word_align_power = 3;
1163 ret->align_power_max = 4;
1164 ret->bytes_per_word = 8;
1165 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
c2e70a82 1166 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
22b75d0a 1167 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1168
1169 ret->build_plt_entry = sparc64_plt_entry_build;
1170 ret->plt_header_size = PLT64_HEADER_SIZE;
1171 ret->plt_entry_size = PLT64_ENTRY_SIZE;
22b75d0a
DM		 1172 }
1173 else
1174 {
1175 ret->put_word = sparc_put_word_32;
22b75d0a
DM		 1176 ret->r_info = sparc_elf_r_info_32;
1177 ret->r_symndx = sparc_elf_r_symndx_32;
22b75d0a
DM		 1178 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1179 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1180 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1181 ret->word_align_power = 2;
1182 ret->align_power_max = 3;
1183 ret->bytes_per_word = 4;
1184 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
c2e70a82 1185 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
22b75d0a 1186 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1187
1188 ret->build_plt_entry = sparc32_plt_entry_build;
1189 ret->plt_header_size = PLT32_HEADER_SIZE;
1190 ret->plt_entry_size = PLT32_ENTRY_SIZE;
22b75d0a
DM		 1191 }
1192
66eb6687 1193 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC		 1194 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1195 SPARC_ELF_DATA))
22b75d0a
DM		 1196 {
1197 free (ret);
1198 return NULL;
1199 }
1200
d0c9aeb3
DM		 1201 ret->loc_hash_table = htab_try_create (1024,
1202 elf_sparc_local_htab_hash,
1203 elf_sparc_local_htab_eq,
1204 NULL);
1205 ret->loc_hash_memory = objalloc_create ();
1206 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1207 {
d495ab0d 1208 _bfd_sparc_elf_link_hash_table_free (abfd);
d0c9aeb3
DM		 1209 return NULL;
1210 }
d495ab0d 1211 ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
d0c9aeb3 1212
22b75d0a
DM		 1213 return &ret->elf.root;
1214}
1215
22b75d0a
DM		 1216/* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1217 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1218 hash table. */
1219
1220bfd_boolean
1221_bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1222 struct bfd_link_info *info)
1223{
1224 struct _bfd_sparc_elf_link_hash_table *htab;
1225
1226 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 1227 BFD_ASSERT (htab != NULL);
1228
22b75d0a
DM		 1229 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1230 return FALSE;
1231
910600e9
RS		 1232 if (htab->is_vxworks)
1233 {
1234 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1235 return FALSE;
0e1862bb 1236 if (bfd_link_pic (info))
910600e9
RS		 1237 {
1238 htab->plt_header_size
1239 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1240 htab->plt_entry_size
1241 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1242 }
1243 else
1244 {
1245 htab->plt_header_size
1246 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1247 htab->plt_entry_size
1248 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1249 }
1250 }
910600e9 1251
9d19e4fd
AM		 1252 if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1253 || (!bfd_link_pic (info) && !htab->elf.srelbss))
22b75d0a
DM		 1254 abort ();
1255
1256 return TRUE;
1257}
1258
d0c9aeb3
DM		 1259static bfd_boolean
1260create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1261{
1262 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1263 struct elf_link_hash_table *htab = elf_hash_table (info);
1264 flagword flags, pltflags;
1265 asection *s;
1266
1267 if (htab->irelifunc != NULL || htab->iplt != NULL)
1268 return TRUE;
1269
1270 flags = bed->dynamic_sec_flags;
1271 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1272
1273 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1274 if (s == NULL
1275 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1276 return FALSE;
1277 htab->iplt = s;
1278
1279 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1280 flags | SEC_READONLY);
1281 if (s == NULL
1282 || ! bfd_set_section_alignment (abfd, s,
1283 bed->s->log_file_align))
1284 return FALSE;
1285 htab->irelplt = s;
1286
1287 return TRUE;
1288}
1289
22b75d0a
DM		 1290/* Copy the extra info we tack onto an elf_link_hash_entry. */
1291
1292void
fcfa13d2 1293_bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
22b75d0a
DM		 1294 struct elf_link_hash_entry *dir,
1295 struct elf_link_hash_entry *ind)
1296{
1297 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1298
1299 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1300 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1301
1302 if (eind->dyn_relocs != NULL)
1303 {
1304 if (edir->dyn_relocs != NULL)
1305 {
1306 struct _bfd_sparc_elf_dyn_relocs **pp;
1307 struct _bfd_sparc_elf_dyn_relocs *p;
1308
fcfa13d2 1309 /* Add reloc counts against the indirect sym to the direct sym
22b75d0a
DM		 1310 list. Merge any entries against the same section. */
1311 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1312 {
1313 struct _bfd_sparc_elf_dyn_relocs *q;
1314
1315 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1316 if (q->sec == p->sec)
1317 {
1318 q->pc_count += p->pc_count;
1319 q->count += p->count;
1320 *pp = p->next;
1321 break;
1322 }
1323 if (q == NULL)
1324 pp = &p->next;
1325 }
1326 *pp = edir->dyn_relocs;
1327 }
1328
1329 edir->dyn_relocs = eind->dyn_relocs;
1330 eind->dyn_relocs = NULL;
1331 }
1332
1333 if (ind->root.type == bfd_link_hash_indirect
1334 && dir->got.refcount <= 0)
1335 {
1336 edir->tls_type = eind->tls_type;
1337 eind->tls_type = GOT_UNKNOWN;
1338 }
bb1dd176
QZ		 1339
1340 /* Copy has_got_reloc and has_non_got_reloc. */
1341 edir->has_got_reloc |= eind->has_got_reloc;
1342 edir->has_non_got_reloc |= eind->has_non_got_reloc;
1343
fcfa13d2 1344 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
22b75d0a
DM		 1345}
1346
1347static int
1348sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1349 int r_type, int is_local)
1350{
1351 if (! ABI_64_P (abfd)
1352 && r_type == R_SPARC_TLS_GD_HI22
1353 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1354 r_type = R_SPARC_REV32;
1355
0fb7012e 1356 if (!bfd_link_executable (info))
22b75d0a
DM		 1357 return r_type;
1358
1359 switch (r_type)
1360 {
1361 case R_SPARC_TLS_GD_HI22:
1362 if (is_local)
1363 return R_SPARC_TLS_LE_HIX22;
1364 return R_SPARC_TLS_IE_HI22;
1365 case R_SPARC_TLS_GD_LO10:
1366 if (is_local)
1367 return R_SPARC_TLS_LE_LOX10;
1368 return R_SPARC_TLS_IE_LO10;
1369 case R_SPARC_TLS_IE_HI22:
1370 if (is_local)
1371 return R_SPARC_TLS_LE_HIX22;
1372 return r_type;
1373 case R_SPARC_TLS_IE_LO10:
1374 if (is_local)
1375 return R_SPARC_TLS_LE_LOX10;
1376 return r_type;
1377 case R_SPARC_TLS_LDM_HI22:
1378 return R_SPARC_TLS_LE_HIX22;
1379 case R_SPARC_TLS_LDM_LO10:
1380 return R_SPARC_TLS_LE_LOX10;
1381 }
1382
1383 return r_type;
1384}
1385\f
1386/* Look through the relocs for a section during the first phase, and
1387 allocate space in the global offset table or procedure linkage
1388 table. */
1389
1390bfd_boolean
1391_bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1392 asection *sec, const Elf_Internal_Rela *relocs)
1393{
1394 struct _bfd_sparc_elf_link_hash_table *htab;
1395 Elf_Internal_Shdr *symtab_hdr;
1396 struct elf_link_hash_entry **sym_hashes;
22b75d0a
DM		 1397 const Elf_Internal_Rela *rel;
1398 const Elf_Internal_Rela *rel_end;
1399 asection *sreloc;
1400 int num_relocs;
1401 bfd_boolean checked_tlsgd = FALSE;
1402
0e1862bb 1403 if (bfd_link_relocatable (info))
22b75d0a
DM		 1404 return TRUE;
1405
1406 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1407 BFD_ASSERT (htab != NULL);
0ffa91dd 1408 symtab_hdr = &elf_symtab_hdr (abfd);
22b75d0a 1409 sym_hashes = elf_sym_hashes (abfd);
22b75d0a
DM		 1410
1411 sreloc = NULL;
1412
1413 if (ABI_64_P (abfd))
d4730f92 1414 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
22b75d0a
DM		 1415 else
1416 num_relocs = sec->reloc_count;
0ffa91dd
NC		 1417
1418 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1419
d0c9aeb3
DM		 1420 if (htab->elf.dynobj == NULL)
1421 htab->elf.dynobj = abfd;
1422 if (!create_ifunc_sections (htab->elf.dynobj, info))
1423 return FALSE;
1424
22b75d0a
DM		 1425 rel_end = relocs + num_relocs;
1426 for (rel = relocs; rel < rel_end; rel++)
1427 {
1428 unsigned int r_type;
d42c267e 1429 unsigned int r_symndx;
22b75d0a 1430 struct elf_link_hash_entry *h;
bb1dd176 1431 struct _bfd_sparc_elf_link_hash_entry *eh;
d0c9aeb3 1432 Elf_Internal_Sym *isym;
22b75d0a
DM		 1433
1434 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1435 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1436
1437 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1438 {
695344c0 1439 /* xgettext:c-format */
4eca0228 1440 _bfd_error_handler (_("%B: bad symbol index: %d"), abfd, r_symndx);
22b75d0a
DM		 1441 return FALSE;
1442 }
1443
d0c9aeb3 1444 isym = NULL;
22b75d0a 1445 if (r_symndx < symtab_hdr->sh_info)
d0c9aeb3
DM		 1446 {
1447 /* A local symbol. */
1448 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1449 abfd, r_symndx);
1450 if (isym == NULL)
1451 return FALSE;
1452
1453 /* Check relocation against local STT_GNU_IFUNC symbol. */
1454 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1455 {
1456 h = elf_sparc_get_local_sym_hash (htab, abfd, rel,
1457 TRUE);
1458 if (h == NULL)
1459 return FALSE;
68ffbac6 1460
d0c9aeb3
DM		 1461 /* Fake a STT_GNU_IFUNC symbol. */
1462 h->type = STT_GNU_IFUNC;
1463 h->def_regular = 1;
1464 h->ref_regular = 1;
1465 h->forced_local = 1;
1466 h->root.type = bfd_link_hash_defined;
1467 }
1468 else
1469 h = NULL;
1470 }
22b75d0a 1471 else
973a3492
L		 1472 {
1473 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1474 while (h->root.type == bfd_link_hash_indirect
1475 || h->root.type == bfd_link_hash_warning)
1476 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM		 1477
1478 /* PR15323, ref flags aren't set for references in the same
1479 object. */
bc4e12de 1480 h->root.non_ir_ref_regular = 1;
973a3492 1481 }
22b75d0a 1482
d0c9aeb3
DM		 1483 if (h && h->type == STT_GNU_IFUNC)
1484 {
1485 if (h->def_regular)
b48ca1d4
DM		 1486 {
1487 h->ref_regular = 1;
1488 h->plt.refcount += 1;
1489 }
d0c9aeb3
DM		 1490 }
1491
22b75d0a
DM		 1492 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1493 with R_SPARC_TLS_GD_HI22. */
1494 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1495 switch (r_type)
1496 {
1497 case R_SPARC_TLS_GD_HI22:
1498 {
1499 const Elf_Internal_Rela *relt;
1500
1501 for (relt = rel + 1; relt < rel_end; relt++)
1502 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1503 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1504 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1505 break;
1506 checked_tlsgd = TRUE;
1507 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1508 }
1509 break;
1510 case R_SPARC_TLS_GD_LO10:
1511 case R_SPARC_TLS_GD_ADD:
1512 case R_SPARC_TLS_GD_CALL:
1513 checked_tlsgd = TRUE;
1514 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1515 break;
1516 }
1517
1518 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
bb1dd176
QZ		 1519 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1520
22b75d0a
DM		 1521 switch (r_type)
1522 {
1523 case R_SPARC_TLS_LDM_HI22:
1524 case R_SPARC_TLS_LDM_LO10:
1525 htab->tls_ldm_got.refcount += 1;
bb1dd176
QZ		 1526 if (eh != NULL)
1527 eh->has_got_reloc = 1;
22b75d0a
DM		 1528 break;
1529
1530 case R_SPARC_TLS_LE_HIX22:
1531 case R_SPARC_TLS_LE_LOX10:
0fb7012e 1532 if (!bfd_link_executable (info))
22b75d0a
DM		 1533 goto r_sparc_plt32;
1534 break;
1535
1536 case R_SPARC_TLS_IE_HI22:
1537 case R_SPARC_TLS_IE_LO10:
0fb7012e 1538 if (!bfd_link_executable (info))
22b75d0a
DM		 1539 info->flags |= DF_STATIC_TLS;
1540 /* Fall through */
1541
1542 case R_SPARC_GOT10:
1543 case R_SPARC_GOT13:
1544 case R_SPARC_GOT22:
739f7f82
DM		 1545 case R_SPARC_GOTDATA_HIX22:
1546 case R_SPARC_GOTDATA_LOX10:
1547 case R_SPARC_GOTDATA_OP_HIX22:
1548 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1549 case R_SPARC_TLS_GD_HI22:
1550 case R_SPARC_TLS_GD_LO10:
1551 /* This symbol requires a global offset table entry. */
1552 {
1553 int tls_type, old_tls_type;
1554
1555 switch (r_type)
1556 {
1557 default:
1558 case R_SPARC_GOT10:
1559 case R_SPARC_GOT13:
1560 case R_SPARC_GOT22:
739f7f82
DM		 1561 case R_SPARC_GOTDATA_OP_HIX22:
1562 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1563 tls_type = GOT_NORMAL;
1564 break;
1565 case R_SPARC_TLS_GD_HI22:
1566 case R_SPARC_TLS_GD_LO10:
1567 tls_type = GOT_TLS_GD;
1568 break;
1569 case R_SPARC_TLS_IE_HI22:
1570 case R_SPARC_TLS_IE_LO10:
1571 tls_type = GOT_TLS_IE;
1572 break;
1573 }
1574
1575 if (h != NULL)
1576 {
1577 h->got.refcount += 1;
1578 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1579 }
1580 else
1581 {
1582 bfd_signed_vma *local_got_refcounts;
1583
1584 /* This is a global offset table entry for a local symbol. */
1585 local_got_refcounts = elf_local_got_refcounts (abfd);
1586 if (local_got_refcounts == NULL)
1587 {
1588 bfd_size_type size;
1589
1590 size = symtab_hdr->sh_info;
1591 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1592 local_got_refcounts = ((bfd_signed_vma *)
1593 bfd_zalloc (abfd, size));
1594 if (local_got_refcounts == NULL)
1595 return FALSE;
1596 elf_local_got_refcounts (abfd) = local_got_refcounts;
1597 _bfd_sparc_elf_local_got_tls_type (abfd)
1598 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1599 }
00c50991
DM		 1600 switch (r_type)
1601 {
1602 case R_SPARC_GOTDATA_OP_HIX22:
1603 case R_SPARC_GOTDATA_OP_LOX10:
1604 break;
1605
1606 default:
1607 local_got_refcounts[r_symndx] += 1;
1608 break;
1609 }
22b75d0a
DM		 1610 old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1611 }
1612
1613 /* If a TLS symbol is accessed using IE at least once,
1614 there is no point to use dynamic model for it. */
1615 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1616 && (old_tls_type != GOT_TLS_GD
1617 || tls_type != GOT_TLS_IE))
1618 {
1619 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1620 tls_type = old_tls_type;
1621 else
1622 {
4eca0228 1623 _bfd_error_handler
695344c0 1624 /* xgettext:c-format */
22b75d0a
DM		 1625 (_("%B: `%s' accessed both as normal and thread local symbol"),
1626 abfd, h ? h->root.root.string : "<local>");
1627 return FALSE;
1628 }
1629 }
1630
1631 if (old_tls_type != tls_type)
1632 {
1633 if (h != NULL)
1634 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1635 else
1636 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1637 }
1638 }
1639
72fbc6e5 1640 if (htab->elf.sgot == NULL)
22b75d0a 1641 {
72fbc6e5 1642 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
22b75d0a
DM		 1643 return FALSE;
1644 }
bb1dd176
QZ		 1645
1646 if (eh != NULL)
1647 eh->has_got_reloc = 1;
22b75d0a
DM		 1648 break;
1649
1650 case R_SPARC_TLS_GD_CALL:
1651 case R_SPARC_TLS_LDM_CALL:
0fb7012e 1652 if (!bfd_link_executable (info))
22b75d0a
DM		 1653 {
1654 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1655 __tls_get_addr. */
1656 struct bfd_link_hash_entry *bh = NULL;
1657 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1658 "__tls_get_addr", 0,
1659 bfd_und_section_ptr, 0,
1660 NULL, FALSE, FALSE,
1661 &bh))
1662 return FALSE;
1663 h = (struct elf_link_hash_entry *) bh;
1664 }
1665 else
1666 break;
1667 /* Fall through */
1668
1669 case R_SPARC_PLT32:
1670 case R_SPARC_WPLT30:
1671 case R_SPARC_HIPLT22:
1672 case R_SPARC_LOPLT10:
1673 case R_SPARC_PCPLT32:
1674 case R_SPARC_PCPLT22:
1675 case R_SPARC_PCPLT10:
1676 case R_SPARC_PLT64:
1677 /* This symbol requires a procedure linkage table entry. We
1678 actually build the entry in adjust_dynamic_symbol,
1679 because this might be a case of linking PIC code without
1680 linking in any dynamic objects, in which case we don't
1681 need to generate a procedure linkage table after all. */
1682
1683 if (h == NULL)
1684 {
1685 if (! ABI_64_P (abfd))
1686 {
1687 /* The Solaris native assembler will generate a WPLT30
1688 reloc for a local symbol if you assemble a call from
1689 one section to another when using -K pic. We treat
1690 it as WDISP30. */
1691 if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
1692 goto r_sparc_plt32;
1693 break;
1694 }
af1fb11f
NC		 1695 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1696 else if (r_type == R_SPARC_WPLT30)
1697 break;
22b75d0a
DM		 1698
1699 /* It does not make sense to have a procedure linkage
1700 table entry for a local symbol. */
1701 bfd_set_error (bfd_error_bad_value);
1702 return FALSE;
1703 }
1704
1705 h->needs_plt = 1;
1706
1707 {
1708 int this_r_type;
1709
1710 this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
1711 if (this_r_type == R_SPARC_PLT32
1712 || this_r_type == R_SPARC_PLT64)
1713 goto r_sparc_plt32;
1714 }
1715 h->plt.refcount += 1;
bb1dd176
QZ		 1716
1717 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1718 eh->has_got_reloc = 1;
22b75d0a
DM		 1719 break;
1720
1721 case R_SPARC_PC10:
1722 case R_SPARC_PC22:
1723 case R_SPARC_PC_HH22:
1724 case R_SPARC_PC_HM10:
1725 case R_SPARC_PC_LM22:
1726 if (h != NULL)
1727 h->non_got_ref = 1;
1728
1729 if (h != NULL
1730 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1731 break;
1732 /* Fall through. */
1733
1734 case R_SPARC_DISP8:
1735 case R_SPARC_DISP16:
1736 case R_SPARC_DISP32:
1737 case R_SPARC_DISP64:
1738 case R_SPARC_WDISP30:
1739 case R_SPARC_WDISP22:
1740 case R_SPARC_WDISP19:
1741 case R_SPARC_WDISP16:
2615994e 1742 case R_SPARC_WDISP10:
22b75d0a
DM		 1743 case R_SPARC_8:
1744 case R_SPARC_16:
1745 case R_SPARC_32:
1746 case R_SPARC_HI22:
1747 case R_SPARC_22:
1748 case R_SPARC_13:
1749 case R_SPARC_LO10:
1750 case R_SPARC_UA16:
1751 case R_SPARC_UA32:
1752 case R_SPARC_10:
1753 case R_SPARC_11:
1754 case R_SPARC_64:
1755 case R_SPARC_OLO10:
1756 case R_SPARC_HH22:
1757 case R_SPARC_HM10:
1758 case R_SPARC_LM22:
1759 case R_SPARC_7:
1760 case R_SPARC_5:
1761 case R_SPARC_6:
1762 case R_SPARC_HIX22:
1763 case R_SPARC_LOX10:
1764 case R_SPARC_H44:
1765 case R_SPARC_M44:
1766 case R_SPARC_L44:
2615994e 1767 case R_SPARC_H34:
22b75d0a
DM		 1768 case R_SPARC_UA64:
1769 if (h != NULL)
1770 h->non_got_ref = 1;
1771
bb1dd176
QZ		 1772 if (eh != NULL && (sec->flags & SEC_CODE) != 0)
1773 eh->has_non_got_reloc = 1;
1774
22b75d0a 1775 r_sparc_plt32:
0e1862bb 1776 if (h != NULL && !bfd_link_pic (info))
22b75d0a
DM		 1777 {
1778 /* We may need a .plt entry if the function this reloc
1779 refers to is in a shared lib. */
1780 h->plt.refcount += 1;
1781 }
1782
1783 /* If we are creating a shared library, and this is a reloc
1784 against a global symbol, or a non PC relative reloc
1785 against a local symbol, then we need to copy the reloc
1786 into the shared library. However, if we are linking with
1787 -Bsymbolic, we do not need to copy a reloc against a
1788 global symbol which is defined in an object we are
1789 including in the link (i.e., DEF_REGULAR is set). At
1790 this point we have not seen all the input files, so it is
1791 possible that DEF_REGULAR is not set now but will be set
1792 later (it is never cleared). In case of a weak definition,
1793 DEF_REGULAR may be cleared later by a strong definition in
1794 a shared library. We account for that possibility below by
1795 storing information in the relocs_copied field of the hash
1796 table entry. A similar situation occurs when creating
1797 shared libraries and symbol visibility changes render the
1798 symbol local.
1799
1800 If on the other hand, we are creating an executable, we
1801 may need to keep relocations for symbols satisfied by a
1802 dynamic library if we manage to avoid copy relocs for the
1803 symbol. */
0e1862bb 1804 if ((bfd_link_pic (info)
22b75d0a
DM		 1805 && (sec->flags & SEC_ALLOC) != 0
1806 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1807 || (h != NULL
72fbc6e5 1808 && (! SYMBOLIC_BIND (info, h)
22b75d0a
DM		 1809 || h->root.type == bfd_link_hash_defweak
1810 || !h->def_regular))))
0e1862bb 1811 || (!bfd_link_pic (info)
22b75d0a
DM		 1812 && (sec->flags & SEC_ALLOC) != 0
1813 && h != NULL
1814 && (h->root.type == bfd_link_hash_defweak
d0c9aeb3 1815 || !h->def_regular))
0e1862bb 1816 || (!bfd_link_pic (info)
d0c9aeb3
DM		 1817 && h != NULL
1818 && h->type == STT_GNU_IFUNC))
22b75d0a
DM		 1819 {
1820 struct _bfd_sparc_elf_dyn_relocs *p;
1821 struct _bfd_sparc_elf_dyn_relocs **head;
1822
1823 /* When creating a shared object, we must copy these
1824 relocs into the output file. We create a reloc
1825 section in dynobj and make room for the reloc. */
1826 if (sreloc == NULL)
1827 {
83bac4b0
NC		 1828 sreloc = _bfd_elf_make_dynamic_reloc_section
1829 (sec, htab->elf.dynobj, htab->word_align_power,
1830 abfd, /*rela?*/ TRUE);
1831
22b75d0a 1832 if (sreloc == NULL)
83bac4b0 1833 return FALSE;
22b75d0a
DM		 1834 }
1835
1836 /* If this is a global symbol, we count the number of
1837 relocations we need for this symbol. */
1838 if (h != NULL)
1839 head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
1840 else
1841 {
1842 /* Track dynamic relocs needed for local syms too.
1843 We really need local syms available to do this
1844 easily. Oh well. */
22b75d0a 1845 asection *s;
6edfbbad 1846 void *vpp;
22b75d0a 1847
d0c9aeb3 1848 BFD_ASSERT (isym != NULL);
87d72d41
AM		 1849 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1850 if (s == NULL)
1851 s = sec;
1852
6edfbbad
DJ		 1853 vpp = &elf_section_data (s)->local_dynrel;
1854 head = (struct _bfd_sparc_elf_dyn_relocs **) vpp;
22b75d0a
DM		 1855 }
1856
1857 p = *head;
1858 if (p == NULL || p->sec != sec)
1859 {
1860 bfd_size_type amt = sizeof *p;
1861 p = ((struct _bfd_sparc_elf_dyn_relocs *)
1862 bfd_alloc (htab->elf.dynobj, amt));
1863 if (p == NULL)
1864 return FALSE;
1865 p->next = *head;
1866 *head = p;
1867 p->sec = sec;
1868 p->count = 0;
1869 p->pc_count = 0;
1870 }
1871
1872 p->count += 1;
1873 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1874 p->pc_count += 1;
1875 }
1876
1877 break;
1878
1879 case R_SPARC_GNU_VTINHERIT:
1880 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1881 return FALSE;
1882 break;
1883
1884 case R_SPARC_GNU_VTENTRY:
d17e0c6e
JB		 1885 BFD_ASSERT (h != NULL);
1886 if (h != NULL
1887 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
22b75d0a
DM		 1888 return FALSE;
1889 break;
1890
1891 case R_SPARC_REGISTER:
1892 /* Nothing to do. */
1893 break;
1894
1895 default:
1896 break;
1897 }
1898 }
1899
1900 return TRUE;
1901}
1902\f
1903asection *
1904_bfd_sparc_elf_gc_mark_hook (asection *sec,
1905 struct bfd_link_info *info,
1906 Elf_Internal_Rela *rel,
1907 struct elf_link_hash_entry *h,
1908 Elf_Internal_Sym *sym)
1909{
1910 if (h != NULL)
07adf181 1911 switch (SPARC_ELF_R_TYPE (rel->r_info))
22b75d0a
DM		 1912 {
1913 case R_SPARC_GNU_VTINHERIT:
1914 case R_SPARC_GNU_VTENTRY:
07adf181 1915 return NULL;
22b75d0a 1916 }
22b75d0a 1917
b45b6908 1918 /* FIXME: The test here, in check_relocs and in relocate_section
0e1862bb
L		 1919 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1920 if (bfd_link_pic (info))
b45b6908
AM		 1921 {
1922 switch (SPARC_ELF_R_TYPE (rel->r_info))
1923 {
1924 case R_SPARC_TLS_GD_CALL:
1925 case R_SPARC_TLS_LDM_CALL:
1926 /* This reloc implicitly references __tls_get_addr. We know
1927 another reloc will reference the same symbol as the one
1928 on this reloc, so the real symbol and section will be
1929 gc marked when processing the other reloc. That lets
1930 us handle __tls_get_addr here. */
1931 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1932 FALSE, FALSE, TRUE);
1933 BFD_ASSERT (h != NULL);
1934 h->mark = 1;
1935 if (h->u.weakdef != NULL)
1936 h->u.weakdef->mark = 1;
1937 sym = NULL;
1938 }
1939 }
1940
07adf181 1941 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
22b75d0a
DM		 1942}
1943
abd242a9
DM		 1944static Elf_Internal_Rela *
1945sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
1946 Elf_Internal_Rela *relend,
1947 bfd_vma offset)
1948{
1949 while (rel < relend)
1950 {
1951 if (rel->r_offset == offset)
1952 return rel;
1953 rel++;
1954 }
1955 return NULL;
1956}
1957
bb1dd176
QZ		 1958/* Remove undefined weak symbol from the dynamic symbol table if it
1959 is resolved to 0. */
1960
1961bfd_boolean
1962_bfd_sparc_elf_fixup_symbol (struct bfd_link_info *info,
1963 struct elf_link_hash_entry *h)
1964{
1965 if (h->dynindx != -1
1966 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
1967 _bfd_sparc_elf_hash_entry (h)))
1968 {
1969 h->dynindx = -1;
1970 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1971 h->dynstr_index);
1972 }
1973 return TRUE;
1974}
1975
22b75d0a
DM		 1976/* Adjust a symbol defined by a dynamic object and referenced by a
1977 regular object. The current definition is in some section of the
1978 dynamic object, but we're not including those sections. We have to
1979 change the definition to something the rest of the link can
1980 understand. */
1981
1982bfd_boolean
1983_bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1984 struct elf_link_hash_entry *h)
1985{
1986 struct _bfd_sparc_elf_link_hash_table *htab;
1987 struct _bfd_sparc_elf_link_hash_entry * eh;
1988 struct _bfd_sparc_elf_dyn_relocs *p;
5474d94f 1989 asection *s, *srel;
22b75d0a
DM		 1990
1991 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1992 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 1993
1994 /* Make sure we know what is going on here. */
1995 BFD_ASSERT (htab->elf.dynobj != NULL
1996 && (h->needs_plt
d0c9aeb3 1997 || h->type == STT_GNU_IFUNC
22b75d0a
DM		 1998 || h->u.weakdef != NULL
1999 || (h->def_dynamic
2000 && h->ref_regular
2001 && !h->def_regular)));
2002
2003 /* If this is a function, put it in the procedure linkage table. We
2004 will fill in the contents of the procedure linkage table later
2005 (although we could actually do it here). The STT_NOTYPE
2006 condition is a hack specifically for the Oracle libraries
2007 delivered for Solaris; for some inexplicable reason, they define
2008 some of their functions as STT_NOTYPE when they really should be
2009 STT_FUNC. */
2010 if (h->type == STT_FUNC
d0c9aeb3 2011 || h->type == STT_GNU_IFUNC
22b75d0a
DM		 2012 || h->needs_plt
2013 || (h->type == STT_NOTYPE
2014 && (h->root.type == bfd_link_hash_defined
2015 || h->root.type == bfd_link_hash_defweak)
2016 && (h->root.u.def.section->flags & SEC_CODE) != 0))
2017 {
2018 if (h->plt.refcount <= 0
d0c9aeb3
DM		 2019 || (h->type != STT_GNU_IFUNC
2020 && (SYMBOL_CALLS_LOCAL (info, h)
2021 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2022 && h->root.type == bfd_link_hash_undefweak))))
22b75d0a
DM		 2023 {
2024 /* This case can occur if we saw a WPLT30 reloc in an input
2025 file, but the symbol was never referred to by a dynamic
2026 object, or if all references were garbage collected. In
2027 such a case, we don't actually need to build a procedure
2028 linkage table, and we can just do a WDISP30 reloc instead. */
2029 h->plt.offset = (bfd_vma) -1;
2030 h->needs_plt = 0;
2031 }
2032
2033 return TRUE;
2034 }
2035 else
2036 h->plt.offset = (bfd_vma) -1;
2037
2038 /* If this is a weak symbol, and there is a real definition, the
2039 processor independent code will have arranged for us to see the
2040 real definition first, and we can just use the same value. */
2041 if (h->u.weakdef != NULL)
2042 {
2043 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2044 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2045 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2046 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2047 return TRUE;
2048 }
2049
2050 /* This is a reference to a symbol defined by a dynamic object which
2051 is not a function. */
2052
2053 /* If we are creating a shared library, we must presume that the
2054 only references to the symbol are via the global offset table.
2055 For such cases we need not do anything here; the relocations will
2056 be handled correctly by relocate_section. */
0e1862bb 2057 if (bfd_link_pic (info))
22b75d0a
DM		 2058 return TRUE;
2059
2060 /* If there are no references to this symbol that do not use the
2061 GOT, we don't need to generate a copy reloc. */
2062 if (!h->non_got_ref)
2063 return TRUE;
2064
72fbc6e5
DM		 2065 /* If -z nocopyreloc was given, we won't generate them either. */
2066 if (info->nocopyreloc)
2067 {
2068 h->non_got_ref = 0;
2069 return TRUE;
2070 }
2071
22b75d0a
DM		 2072 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2073 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2074 {
2075 s = p->sec->output_section;
2076 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2077 break;
2078 }
2079
2080 /* If we didn't find any dynamic relocs in read-only sections, then
2081 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2082 if (p == NULL)
2083 {
2084 h->non_got_ref = 0;
2085 return TRUE;
2086 }
2087
2088 /* We must allocate the symbol in our .dynbss section, which will
2089 become part of the .bss section of the executable. There will be
2090 an entry for this symbol in the .dynsym section. The dynamic
2091 object will contain position independent code, so all references
2092 from the dynamic object to this symbol will go through the global
2093 offset table. The dynamic linker will use the .dynsym entry to
2094 determine the address it must put in the global offset table, so
2095 both the dynamic object and the regular object will refer to the
2096 same memory location for the variable. */
2097
2098 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2099 to copy the initial value out of the dynamic object and into the
2100 runtime process image. We need to remember the offset into the
2101 .rel.bss section we are going to use. */
5474d94f
AM		 2102 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2103 {
2104 s = htab->elf.sdynrelro;
2105 srel = htab->elf.sreldynrelro;
2106 }
2107 else
2108 {
2109 s = htab->elf.sdynbss;
2110 srel = htab->elf.srelbss;
2111 }
1d7e9d18 2112 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
22b75d0a 2113 {
5474d94f 2114 srel->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2115 h->needs_copy = 1;
2116 }
2117
6cabe1ea 2118 return _bfd_elf_adjust_dynamic_copy (info, h, s);
22b75d0a
DM		 2119}
2120
2121/* Allocate space in .plt, .got and associated reloc sections for
2122 dynamic relocs. */
2123
2124static bfd_boolean
2c3fc389 2125allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
22b75d0a
DM		 2126{
2127 struct bfd_link_info *info;
2128 struct _bfd_sparc_elf_link_hash_table *htab;
2129 struct _bfd_sparc_elf_link_hash_entry *eh;
2130 struct _bfd_sparc_elf_dyn_relocs *p;
bb1dd176 2131 bfd_boolean resolved_to_zero;
22b75d0a
DM		 2132
2133 if (h->root.type == bfd_link_hash_indirect)
2134 return TRUE;
2135
22b75d0a
DM		 2136 info = (struct bfd_link_info *) inf;
2137 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2138 BFD_ASSERT (htab != NULL);
22b75d0a 2139
bb1dd176
QZ		 2140 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2141 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
2142
d0c9aeb3
DM		 2143 if ((htab->elf.dynamic_sections_created
2144 && h->plt.refcount > 0)
2145 || (h->type == STT_GNU_IFUNC
b48ca1d4
DM		 2146 && h->def_regular
2147 && h->ref_regular))
22b75d0a
DM		 2148 {
2149 /* Make sure this symbol is output as a dynamic symbol.
2150 Undefined weak syms won't yet be marked as dynamic. */
2151 if (h->dynindx == -1
bb1dd176 2152 && !h->forced_local
ec1acaba
EB		 2153 && !resolved_to_zero
2154 && h->root.type == bfd_link_hash_undefweak)
22b75d0a
DM		 2155 {
2156 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2157 return FALSE;
2158 }
2159
0e1862bb 2160 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
b48ca1d4
DM		 2161 || (h->type == STT_GNU_IFUNC
2162 && h->def_regular))
22b75d0a 2163 {
72fbc6e5 2164 asection *s = htab->elf.splt;
22b75d0a 2165
d0c9aeb3
DM		 2166 if (s == NULL)
2167 s = htab->elf.iplt;
2168
910600e9 2169 /* Allocate room for the header. */
22b75d0a 2170 if (s->size == 0)
910600e9
RS		 2171 {
2172 s->size = htab->plt_header_size;
2173
2174 /* Allocate space for the .rela.plt.unloaded relocations. */
0e1862bb 2175 if (htab->is_vxworks && !bfd_link_pic (info))
910600e9
RS		 2176 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2177 }
22b75d0a
DM		 2178
2179 /* The procedure linkage table size is bounded by the magnitude
2180 of the offset we can describe in the entry. */
2181 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
e8be8da4 2182 (((bfd_vma)1 << 31) << 1) : 0x400000))
22b75d0a
DM		 2183 {
2184 bfd_set_error (bfd_error_bad_value);
2185 return FALSE;
2186 }
2187
2188 if (SPARC_ELF_WORD_BYTES(htab) == 8
2189 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2190 {
2191 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2192
2193
2194 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2195
2196 h->plt.offset = (s->size - (off * 8));
2197 }
2198 else
2199 h->plt.offset = s->size;
2200
2201 /* If this symbol is not defined in a regular file, and we are
2202 not generating a shared library, then set the symbol to this
2203 location in the .plt. This is required to make function
2204 pointers compare as equal between the normal executable and
2205 the shared library. */
0e1862bb 2206 if (! bfd_link_pic (info)
22b75d0a
DM		 2207 && !h->def_regular)
2208 {
2209 h->root.u.def.section = s;
2210 h->root.u.def.value = h->plt.offset;
2211 }
2212
2213 /* Make room for this entry. */
910600e9 2214 s->size += htab->plt_entry_size;
22b75d0a 2215
bb1dd176
QZ		 2216 /* There should be no PLT relocations against resolved undefined
2217 weak symbols in the executable. */
2218 if (!resolved_to_zero)
2219 {
2220 /* We also need to make an entry in the .rela.plt section. */
2221 if (s == htab->elf.splt)
2222 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
2223 else
2224 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
2225 }
910600e9
RS		 2226
2227 if (htab->is_vxworks)
2228 {
2229 /* Allocate space for the .got.plt entry. */
72fbc6e5 2230 htab->elf.sgotplt->size += 4;
910600e9
RS		 2231
2232 /* ...and for the .rela.plt.unloaded relocations. */
0e1862bb 2233 if (!bfd_link_pic (info))
910600e9
RS		 2234 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2235 }
22b75d0a
DM		 2236 }
2237 else
2238 {
2239 h->plt.offset = (bfd_vma) -1;
2240 h->needs_plt = 0;
2241 }
2242 }
2243 else
2244 {
2245 h->plt.offset = (bfd_vma) -1;
2246 h->needs_plt = 0;
2247 }
2248
2249 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2250 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2251 if (h->got.refcount > 0
0fb7012e 2252 && bfd_link_executable (info)
22b75d0a
DM		 2253 && h->dynindx == -1
2254 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2255 h->got.offset = (bfd_vma) -1;
2256 else if (h->got.refcount > 0)
2257 {
2258 asection *s;
2259 bfd_boolean dyn;
2260 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2261
2262 /* Make sure this symbol is output as a dynamic symbol.
2263 Undefined weak syms won't yet be marked as dynamic. */
2264 if (h->dynindx == -1
bb1dd176 2265 && !h->forced_local
ec1acaba
EB		 2266 && !resolved_to_zero
2267 && h->root.type == bfd_link_hash_undefweak)
22b75d0a
DM		 2268 {
2269 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2270 return FALSE;
2271 }
2272
72fbc6e5 2273 s = htab->elf.sgot;
22b75d0a
DM		 2274 h->got.offset = s->size;
2275 s->size += SPARC_ELF_WORD_BYTES (htab);
2276 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2277 if (tls_type == GOT_TLS_GD)
2278 s->size += SPARC_ELF_WORD_BYTES (htab);
2279 dyn = htab->elf.dynamic_sections_created;
2280 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2281 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
bb1dd176
QZ		 2282 global. No dynamic relocations are needed against resolved
2283 undefined weak symbols in an executable. */
22b75d0a 2284 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
d0c9aeb3
DM		 2285 || tls_type == GOT_TLS_IE
2286 || h->type == STT_GNU_IFUNC)
72fbc6e5 2287 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a 2288 else if (tls_type == GOT_TLS_GD)
72fbc6e5 2289 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
bb1dd176
QZ		 2290 else if (((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2291 && !resolved_to_zero)
2292 || h->root.type != bfd_link_hash_undefweak)
2293 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2294 bfd_link_pic (info),
2295 h))
72fbc6e5 2296 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2297 }
2298 else
2299 h->got.offset = (bfd_vma) -1;
2300
22b75d0a
DM		 2301 if (eh->dyn_relocs == NULL)
2302 return TRUE;
2303
2304 /* In the shared -Bsymbolic case, discard space allocated for
2305 dynamic pc-relative relocs against symbols which turn out to be
2306 defined in regular objects. For the normal shared case, discard
2307 space for pc-relative relocs that have become local due to symbol
2308 visibility changes. */
2309
0e1862bb 2310 if (bfd_link_pic (info))
22b75d0a 2311 {
72fbc6e5 2312 if (SYMBOL_CALLS_LOCAL (info, h))
22b75d0a
DM		 2313 {
2314 struct _bfd_sparc_elf_dyn_relocs **pp;
2315
2316 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2317 {
2318 p->count -= p->pc_count;
2319 p->pc_count = 0;
2320 if (p->count == 0)
2321 *pp = p->next;
2322 else
2323 pp = &p->next;
2324 }
2325 }
22d606e9 2326
3348747a
NS		 2327 if (htab->is_vxworks)
2328 {
2329 struct _bfd_sparc_elf_dyn_relocs **pp;
2330
2331 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2332 {
2333 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2334 *pp = p->next;
2335 else
2336 pp = &p->next;
2337 }
2338 }
2339
22d606e9 2340 /* Also discard relocs on undefined weak syms with non-default
bb1dd176 2341 visibility or in PIE. */
22d606e9
AM		 2342 if (eh->dyn_relocs != NULL
2343 && h->root.type == bfd_link_hash_undefweak)
2344 {
bb1dd176
QZ		 2345 /* An undefined weak symbol is never
2346 bound locally in a shared library. */
2347
2348 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2349 || resolved_to_zero)
2350 {
2351 if (h->non_got_ref)
2352 {
2353 /* Keep dynamic non-GOT/non-PLT relocation so that we
2354 can branch to 0 without PLT. */
2355 struct _bfd_sparc_elf_dyn_relocs **pp;
2356
2357 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2358 if (p->pc_count == 0)
2359 *pp = p->next;
2360 else
2361 {
2362 /* Remove other relocations. */
2363 p->count = p->pc_count;
2364 pp = &p->next;
2365 }
2366
2367 if (eh->dyn_relocs != NULL)
2368 {
2369 /* Make sure undefined weak symbols are output
2370 as dynamic symbols in PIEs for dynamic non-GOT
2371 non-PLT reloations. */
2372 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2373 return FALSE;
2374 }
2375 }
2376 else
2377 eh->dyn_relocs = NULL;
2378 }
22d606e9
AM		 2379
2380 /* Make sure undefined weak symbols are output as a dynamic
2381 symbol in PIEs. */
2382 else if (h->dynindx == -1
2383 && !h->forced_local)
2384 {
2385 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2386 return FALSE;
2387 }
2388 }
22b75d0a
DM		 2389 }
2390 else
2391 {
2392 /* For the non-shared case, discard space for relocs against
2393 symbols which turn out to need copy relocs or are not
2394 dynamic. */
2395
bb1dd176
QZ		 2396 if ((!h->non_got_ref
2397 || (h->root.type == bfd_link_hash_undefweak
2398 && !resolved_to_zero))
22b75d0a
DM		 2399 && ((h->def_dynamic
2400 && !h->def_regular)
2401 || (htab->elf.dynamic_sections_created
2402 && (h->root.type == bfd_link_hash_undefweak
2403 || h->root.type == bfd_link_hash_undefined))))
2404 {
2405 /* Make sure this symbol is output as a dynamic symbol.
2406 Undefined weak syms won't yet be marked as dynamic. */
2407 if (h->dynindx == -1
bb1dd176 2408 && !h->forced_local
ec1acaba
EB		 2409 && !resolved_to_zero
2410 && h->root.type == bfd_link_hash_undefweak)
22b75d0a
DM		 2411 {
2412 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2413 return FALSE;
2414 }
2415
2416 /* If that succeeded, we know we'll be keeping all the
2417 relocs. */
2418 if (h->dynindx != -1)
2419 goto keep;
2420 }
2421
2422 eh->dyn_relocs = NULL;
2423
2424 keep: ;
2425 }
2426
2427 /* Finally, allocate space. */
2428 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2429 {
2430 asection *sreloc = elf_section_data (p->sec)->sreloc;
2431 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2432 }
2433
2434 return TRUE;
2435}
2436
d0c9aeb3
DM		 2437/* Allocate space in .plt, .got and associated reloc sections for
2438 local dynamic relocs. */
2439
2440static bfd_boolean
2441allocate_local_dynrelocs (void **slot, void *inf)
2442{
2443 struct elf_link_hash_entry *h
2444 = (struct elf_link_hash_entry *) *slot;
2445
2446 if (h->type != STT_GNU_IFUNC
2447 || !h->def_regular
2448 || !h->ref_regular
2449 || !h->forced_local
2450 || h->root.type != bfd_link_hash_defined)
2451 abort ();
2452
2453 return allocate_dynrelocs (h, inf);
2454}
2455
22b75d0a
DM		 2456/* Find any dynamic relocs that apply to read-only sections. */
2457
2458static bfd_boolean
2c3fc389 2459readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
22b75d0a
DM		 2460{
2461 struct _bfd_sparc_elf_link_hash_entry *eh;
2462 struct _bfd_sparc_elf_dyn_relocs *p;
2463
22b75d0a
DM		 2464 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2465 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2466 {
2467 asection *s = p->sec->output_section;
2468
2469 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2470 {
2471 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2472
2473 info->flags |= DF_TEXTREL;
2474
f0f07ad1
L		 2475 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2476 p->sec->owner, p->sec);
2477
22b75d0a
DM		 2478 /* Not an error, just cut short the traversal. */
2479 return FALSE;
2480 }
2481 }
2482 return TRUE;
2483}
2484
2485/* Return true if the dynamic symbol for a given section should be
2486 omitted when creating a shared library. */
2487
2488bfd_boolean
2489_bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2490 struct bfd_link_info *info,
2491 asection *p)
2492{
2493 /* We keep the .got section symbol so that explicit relocations
2494 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2495 can be turned into relocations against the .got symbol. */
2496 if (strcmp (p->name, ".got") == 0)
2497 return FALSE;
2498
2499 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2500}
2501
2502/* Set the sizes of the dynamic sections. */
2503
2504bfd_boolean
2505_bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2506 struct bfd_link_info *info)
2507{
2508 struct _bfd_sparc_elf_link_hash_table *htab;
2509 bfd *dynobj;
2510 asection *s;
2511 bfd *ibfd;
2512
2513 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2514 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 2515 dynobj = htab->elf.dynobj;
2516 BFD_ASSERT (dynobj != NULL);
2517
2518 if (elf_hash_table (info)->dynamic_sections_created)
2519 {
2520 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2521 if (bfd_link_executable (info) && !info->nointerp)
bb1dd176
QZ		 2522 {
2523 s = bfd_get_linker_section (dynobj, ".interp");
2524 BFD_ASSERT (s != NULL);
2525 s->size = htab->dynamic_interpreter_size;
2526 s->contents = (unsigned char *) htab->dynamic_interpreter;
2527 htab->interp = s;
2528 }
22b75d0a
DM		 2529 }
2530
2531 /* Set up .got offsets for local syms, and space for local dynamic
2532 relocs. */
c72f2fb2 2533 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
22b75d0a
DM		 2534 {
2535 bfd_signed_vma *local_got;
2536 bfd_signed_vma *end_local_got;
2537 char *local_tls_type;
2538 bfd_size_type locsymcount;
2539 Elf_Internal_Shdr *symtab_hdr;
2540 asection *srel;
2541
0ffa91dd 2542 if (! is_sparc_elf (ibfd))
22b75d0a
DM		 2543 continue;
2544
2545 for (s = ibfd->sections; s != NULL; s = s->next)
2546 {
2547 struct _bfd_sparc_elf_dyn_relocs *p;
2548
6edfbbad 2549 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
22b75d0a
DM		 2550 {
2551 if (!bfd_is_abs_section (p->sec)
2552 && bfd_is_abs_section (p->sec->output_section))
2553 {
2554 /* Input section has been discarded, either because
2555 it is a copy of a linkonce section or due to
2556 linker script /DISCARD/, so we'll be discarding
2557 the relocs too. */
2558 }
3348747a
NS		 2559 else if (htab->is_vxworks
2560 && strcmp (p->sec->output_section->name,
2561 ".tls_vars") == 0)
2562 {
2563 /* Relocations in vxworks .tls_vars sections are
2564 handled specially by the loader. */
2565 }
22b75d0a
DM		 2566 else if (p->count != 0)
2567 {
2568 srel = elf_section_data (p->sec)->sreloc;
d0c9aeb3
DM		 2569 if (!htab->elf.dynamic_sections_created)
2570 srel = htab->elf.irelplt;
22b75d0a
DM		 2571 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2572 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
f0f07ad1
L		 2573 {
2574 info->flags |= DF_TEXTREL;
2575 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2576 p->sec->owner, p->sec);
2577 }
22b75d0a
DM		 2578 }
2579 }
2580 }
2581
2582 local_got = elf_local_got_refcounts (ibfd);
2583 if (!local_got)
2584 continue;
2585
0ffa91dd 2586 symtab_hdr = &elf_symtab_hdr (ibfd);
22b75d0a
DM		 2587 locsymcount = symtab_hdr->sh_info;
2588 end_local_got = local_got + locsymcount;
2589 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
72fbc6e5
DM		 2590 s = htab->elf.sgot;
2591 srel = htab->elf.srelgot;
22b75d0a
DM		 2592 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2593 {
2594 if (*local_got > 0)
2595 {
2596 *local_got = s->size;
2597 s->size += SPARC_ELF_WORD_BYTES (htab);
2598 if (*local_tls_type == GOT_TLS_GD)
2599 s->size += SPARC_ELF_WORD_BYTES (htab);
0e1862bb 2600 if (bfd_link_pic (info)
22b75d0a
DM		 2601 || *local_tls_type == GOT_TLS_GD
2602 || *local_tls_type == GOT_TLS_IE)
2603 srel->size += SPARC_ELF_RELA_BYTES (htab);
2604 }
2605 else
2606 *local_got = (bfd_vma) -1;
2607 }
2608 }
2609
2610 if (htab->tls_ldm_got.refcount > 0)
2611 {
2612 /* Allocate 2 got entries and 1 dynamic reloc for
2613 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
72fbc6e5
DM		 2614 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2615 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2616 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2617 }
2618 else
2619 htab->tls_ldm_got.offset = -1;
2620
2621 /* Allocate global sym .plt and .got entries, and space for global
2622 sym dynamic relocs. */
2c3fc389 2623 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
22b75d0a 2624
d0c9aeb3
DM		 2625 /* Allocate .plt and .got entries, and space for local symbols. */
2626 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2627
0fc9967d
JM		 2628 if (! ABI_64_P (output_bfd)
2629 && !htab->is_vxworks
22b75d0a
DM		 2630 && elf_hash_table (info)->dynamic_sections_created)
2631 {
0fc9967d
JM		 2632 /* Make space for the trailing nop in .plt. */
2633 if (htab->elf.splt->size > 0)
2634 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
22b75d0a
DM		 2635
2636 /* If the .got section is more than 0x1000 bytes, we add
2637 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
0fc9967d
JM		 2638 bit relocations have a greater chance of working.
2639
2640 FIXME: Make this optimization work for 64-bit too. */
72fbc6e5 2641 if (htab->elf.sgot->size >= 0x1000
22b75d0a
DM		 2642 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2643 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2644 }
2645
2646 /* The check_relocs and adjust_dynamic_symbol entry points have
2647 determined the sizes of the various dynamic sections. Allocate
2648 memory for them. */
2649 for (s = dynobj->sections; s != NULL; s = s->next)
2650 {
22b75d0a
DM		 2651 if ((s->flags & SEC_LINKER_CREATED) == 0)
2652 continue;
2653
72fbc6e5
DM		 2654 if (s == htab->elf.splt
2655 || s == htab->elf.sgot
9d19e4fd 2656 || s == htab->elf.sdynbss
5474d94f 2657 || s == htab->elf.sdynrelro
d0c9aeb3 2658 || s == htab->elf.iplt
72fbc6e5 2659 || s == htab->elf.sgotplt)
22b75d0a 2660 {
c456f082
AM		 2661 /* Strip this section if we don't need it; see the
2662 comment below. */
2663 }
0112cd26 2664 else if (CONST_STRNEQ (s->name, ".rela"))
c456f082
AM		 2665 {
2666 if (s->size != 0)
22b75d0a
DM		 2667 {
2668 /* We use the reloc_count field as a counter if we need
2669 to copy relocs into the output file. */
2670 s->reloc_count = 0;
2671 }
2672 }
c456f082 2673 else
22b75d0a 2674 {
c456f082 2675 /* It's not one of our sections. */
22b75d0a
DM		 2676 continue;
2677 }
2678
c456f082 2679 if (s->size == 0)
22b75d0a 2680 {
c456f082
AM		 2681 /* If we don't need this section, strip it from the
2682 output file. This is mostly to handle .rela.bss and
2683 .rela.plt. We must create both sections in
2684 create_dynamic_sections, because they must be created
2685 before the linker maps input sections to output
2686 sections. The linker does that before
2687 adjust_dynamic_symbol is called, and it is that
2688 function which decides whether anything needs to go
2689 into these sections. */
8423293d 2690 s->flags |= SEC_EXCLUDE;
22b75d0a
DM		 2691 continue;
2692 }
2693
c456f082
AM		 2694 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2695 continue;
2696
22b75d0a
DM		 2697 /* Allocate memory for the section contents. Zero the memory
2698 for the benefit of .rela.plt, which has 4 unused entries
2699 at the beginning, and we don't want garbage. */
2700 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
c456f082 2701 if (s->contents == NULL)
22b75d0a
DM		 2702 return FALSE;
2703 }
2704
2705 if (elf_hash_table (info)->dynamic_sections_created)
2706 {
2707 /* Add some entries to the .dynamic section. We fill in the
2708 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2709 must add the entries now so that we get the correct size for
2710 the .dynamic section. The DT_DEBUG entry is filled in by the
2711 dynamic linker and used by the debugger. */
2712#define add_dynamic_entry(TAG, VAL) \
2713 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2714
0e1862bb 2715 if (bfd_link_executable (info))
22b75d0a
DM		 2716 {
2717 if (!add_dynamic_entry (DT_DEBUG, 0))
2718 return FALSE;
2719 }
2720
72fbc6e5 2721 if (htab->elf.srelplt->size != 0)
22b75d0a
DM		 2722 {
2723 if (!add_dynamic_entry (DT_PLTGOT, 0)
2724 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2725 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2726 || !add_dynamic_entry (DT_JMPREL, 0))
2727 return FALSE;
2728 }
2729
2730 if (!add_dynamic_entry (DT_RELA, 0)
2731 || !add_dynamic_entry (DT_RELASZ, 0)
2732 || !add_dynamic_entry (DT_RELAENT,
2733 SPARC_ELF_RELA_BYTES (htab)))
2734 return FALSE;
2735
2736 /* If any dynamic relocs apply to a read-only section,
2737 then we need a DT_TEXTREL entry. */
2738 if ((info->flags & DF_TEXTREL) == 0)
2c3fc389 2739 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
22b75d0a
DM		 2740
2741 if (info->flags & DF_TEXTREL)
2742 {
2743 if (!add_dynamic_entry (DT_TEXTREL, 0))
2744 return FALSE;
2745 }
2746
2747 if (ABI_64_P (output_bfd))
2748 {
2749 int reg;
2750 struct _bfd_sparc_elf_app_reg * app_regs;
2751 struct elf_strtab_hash *dynstr;
2752 struct elf_link_hash_table *eht = elf_hash_table (info);
2753
2754 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2755 entries if needed. */
2756 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2757 dynstr = eht->dynstr;
2758
2759 for (reg = 0; reg < 4; reg++)
2760 if (app_regs [reg].name != NULL)
2761 {
2762 struct elf_link_local_dynamic_entry *entry, *e;
2763
2764 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2765 return FALSE;
2766
2767 entry = (struct elf_link_local_dynamic_entry *)
2768 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2769 if (entry == NULL)
2770 return FALSE;
2771
2772 /* We cheat here a little bit: the symbol will not be local, so we
2773 put it at the end of the dynlocal linked list. We will fix it
2774 later on, as we have to fix other fields anyway. */
2775 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2776 entry->isym.st_size = 0;
2777 if (*app_regs [reg].name != '\0')
2778 entry->isym.st_name
2779 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2780 else
2781 entry->isym.st_name = 0;
2782 entry->isym.st_other = 0;
2783 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2784 STT_REGISTER);
2785 entry->isym.st_shndx = app_regs [reg].shndx;
35fc36a8 2786 entry->isym.st_target_internal = 0;
22b75d0a
DM		 2787 entry->next = NULL;
2788 entry->input_bfd = output_bfd;
2789 entry->input_indx = -1;
2790
2791 if (eht->dynlocal == NULL)
2792 eht->dynlocal = entry;
2793 else
2794 {
2795 for (e = eht->dynlocal; e->next; e = e->next)
2796 ;
2797 e->next = entry;
2798 }
2799 eht->dynsymcount++;
2800 }
2801 }
7a2b07ff
NS		 2802 if (htab->is_vxworks
2803 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2804 return FALSE;
22b75d0a
DM		 2805 }
2806#undef add_dynamic_entry
2807
2808 return TRUE;
2809}
2810\f
2811bfd_boolean
2812_bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2813{
f592407e
AM		 2814 if (!sec->used_by_bfd)
2815 {
2816 struct _bfd_sparc_elf_section_data *sdata;
2817 bfd_size_type amt = sizeof (*sdata);
22b75d0a 2818
f592407e
AM		 2819 sdata = bfd_zalloc (abfd, amt);
2820 if (sdata == NULL)
2821 return FALSE;
2822 sec->used_by_bfd = sdata;
2823 }
22b75d0a
DM		 2824
2825 return _bfd_elf_new_section_hook (abfd, sec);
2826}
2827
2828bfd_boolean
2829_bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2830 struct bfd_section *section,
2831 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2832 bfd_boolean *again)
2833{
0e1862bb 2834 if (bfd_link_relocatable (link_info))
c8a1f254
NS		 2835 (*link_info->callbacks->einfo)
2836 (_("%P%F: --relax and -r may not be used together\n"));
2837
22b75d0a
DM		 2838 *again = FALSE;
2839 sec_do_relax (section) = 1;
2840 return TRUE;
2841}
2842\f
2843/* Return the base VMA address which should be subtracted from real addresses
2844 when resolving @dtpoff relocation.
2845 This is PT_TLS segment p_vaddr. */
2846
2847static bfd_vma
2848dtpoff_base (struct bfd_link_info *info)
2849{
2850 /* If tls_sec is NULL, we should have signalled an error already. */
2851 if (elf_hash_table (info)->tls_sec == NULL)
2852 return 0;
2853 return elf_hash_table (info)->tls_sec->vma;
2854}
2855
2856/* Return the relocation value for @tpoff relocation
2857 if STT_TLS virtual address is ADDRESS. */
2858
2859static bfd_vma
2860tpoff (struct bfd_link_info *info, bfd_vma address)
2861{
2862 struct elf_link_hash_table *htab = elf_hash_table (info);
1360ba76
RO		 2863 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
2864 bfd_vma static_tls_size;
22b75d0a
DM		 2865
2866 /* If tls_sec is NULL, we should have signalled an error already. */
2867 if (htab->tls_sec == NULL)
2868 return 0;
1360ba76
RO		 2869
2870 /* Consider special static TLS alignment requirements. */
2871 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
2872 return address - static_tls_size - htab->tls_sec->vma;
22b75d0a
DM		 2873}
2874
00c50991
DM		 2875/* Return the relocation value for a %gdop relocation. */
2876
2877static bfd_vma
2878gdopoff (struct bfd_link_info *info, bfd_vma address)
2879{
2880 struct elf_link_hash_table *htab = elf_hash_table (info);
2881 bfd_vma got_base;
2882
2883 got_base = (htab->hgot->root.u.def.value
2884 + htab->hgot->root.u.def.section->output_offset
2885 + htab->hgot->root.u.def.section->output_section->vma);
2886
2887 return address - got_base;
2888}
2889
5b86074c
AM		 2890/* Return whether H is local and its ADDRESS is within 4G of
2891 _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
2892 sethi, xor sequence. */
2893
2894static bfd_boolean
2895gdop_relative_offset_ok (struct bfd_link_info *info,
2896 struct elf_link_hash_entry *h,
2897 bfd_vma address ATTRIBUTE_UNUSED)
2898{
2899 if (!SYMBOL_REFERENCES_LOCAL (info, h))
2900 return FALSE;
2901 /* If H is undefined, ADDRESS will be zero. We can't allow a
2902 relative offset to "zero" when producing PIEs or shared libs.
2903 Note that to get here with an undefined symbol it must also be
2904 hidden or internal visibility. */
2905 if (bfd_link_pic (info)
2906 && h != NULL
2907 && (h->root.type == bfd_link_hash_undefweak
2908 || h->root.type == bfd_link_hash_undefined))
2909 return FALSE;
2910#ifdef BFD64
2911 return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
2912#else
2913 return TRUE;
2914#endif
2915}
2916
22b75d0a
DM		 2917/* Relocate a SPARC ELF section. */
2918
2919bfd_boolean
ab96bf03
AM		 2920_bfd_sparc_elf_relocate_section (bfd *output_bfd,
2921 struct bfd_link_info *info,
2922 bfd *input_bfd,
2923 asection *input_section,
2924 bfd_byte *contents,
2925 Elf_Internal_Rela *relocs,
2926 Elf_Internal_Sym *local_syms,
2927 asection **local_sections)
22b75d0a
DM		 2928{
2929 struct _bfd_sparc_elf_link_hash_table *htab;
2930 Elf_Internal_Shdr *symtab_hdr;
2931 struct elf_link_hash_entry **sym_hashes;
2932 bfd_vma *local_got_offsets;
2933 bfd_vma got_base;
2934 asection *sreloc;
2935 Elf_Internal_Rela *rel;
2936 Elf_Internal_Rela *relend;
2937 int num_relocs;
3348747a 2938 bfd_boolean is_vxworks_tls;
22b75d0a 2939
22b75d0a 2940 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2941 BFD_ASSERT (htab != NULL);
0ffa91dd 2942 symtab_hdr = &elf_symtab_hdr (input_bfd);
22b75d0a
DM		 2943 sym_hashes = elf_sym_hashes (input_bfd);
2944 local_got_offsets = elf_local_got_offsets (input_bfd);
2945
2946 if (elf_hash_table (info)->hgot == NULL)
2947 got_base = 0;
2948 else
2949 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2950
2951 sreloc = elf_section_data (input_section)->sreloc;
3348747a
NS		 2952 /* We have to handle relocations in vxworks .tls_vars sections
2953 specially, because the dynamic loader is 'weird'. */
0e1862bb 2954 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3348747a
NS		 2955 && !strcmp (input_section->output_section->name,
2956 ".tls_vars"));
22b75d0a
DM		 2957
2958 rel = relocs;
2959 if (ABI_64_P (output_bfd))
d4730f92 2960 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
22b75d0a
DM		 2961 else
2962 num_relocs = input_section->reloc_count;
2963 relend = relocs + num_relocs;
2964 for (; rel < relend; rel++)
2965 {
2966 int r_type, tls_type;
2967 reloc_howto_type *howto;
2968 unsigned long r_symndx;
2969 struct elf_link_hash_entry *h;
bb1dd176 2970 struct _bfd_sparc_elf_link_hash_entry *eh;
22b75d0a
DM		 2971 Elf_Internal_Sym *sym;
2972 asection *sec;
2973 bfd_vma relocation, off;
2974 bfd_reloc_status_type r;
2975 bfd_boolean is_plt = FALSE;
2976 bfd_boolean unresolved_reloc;
bb1dd176 2977 bfd_boolean resolved_to_zero;
ec1acaba 2978 bfd_boolean relative_reloc;
22b75d0a
DM		 2979
2980 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2981 if (r_type == R_SPARC_GNU_VTINHERIT
2982 || r_type == R_SPARC_GNU_VTENTRY)
2983 continue;
2984
2985 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2986 {
2987 bfd_set_error (bfd_error_bad_value);
2988 return FALSE;
2989 }
2990 howto = _bfd_sparc_elf_howto_table + r_type;
2991
22b75d0a
DM		 2992 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2993 h = NULL;
2994 sym = NULL;
2995 sec = NULL;
2996 unresolved_reloc = FALSE;
2997 if (r_symndx < symtab_hdr->sh_info)
2998 {
2999 sym = local_syms + r_symndx;
3000 sec = local_sections[r_symndx];
3001 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
d0c9aeb3 3002
0e1862bb 3003 if (!bfd_link_relocatable (info)
d0c9aeb3
DM		 3004 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
3005 {
3006 /* Relocate against local STT_GNU_IFUNC symbol. */
3007 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
3008 rel, FALSE);
3009 if (h == NULL)
3010 abort ();
3011
68ffbac6 3012 /* Set STT_GNU_IFUNC symbol value. */
d0c9aeb3
DM		 3013 h->root.u.def.value = sym->st_value;
3014 h->root.u.def.section = sec;
3015 }
22b75d0a
DM		 3016 }
3017 else
3018 {
62d887d4 3019 bfd_boolean warned, ignored;
22b75d0a
DM		 3020
3021 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3022 r_symndx, symtab_hdr, sym_hashes,
3023 h, sec, relocation,
62d887d4 3024 unresolved_reloc, warned, ignored);
22b75d0a
DM		 3025 if (warned)
3026 {
3027 /* To avoid generating warning messages about truncated
3028 relocations, set the relocation's address to be the same as
3029 the start of this section. */
3030 if (input_section->output_section != NULL)
3031 relocation = input_section->output_section->vma;
3032 else
3033 relocation = 0;
3034 }
3035 }
3036
dbaa2011 3037 if (sec != NULL && discarded_section (sec))
e4067dbb 3038 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 3039 rel, 1, relend, howto, 0, contents);
ab96bf03 3040
0e1862bb 3041 if (bfd_link_relocatable (info))
ab96bf03
AM		 3042 continue;
3043
d0c9aeb3
DM		 3044 if (h != NULL
3045 && h->type == STT_GNU_IFUNC
3046 && h->def_regular)
3047 {
3048 asection *plt_sec;
3049 const char *name;
3050
3051 if ((input_section->flags & SEC_ALLOC) == 0
3052 || h->plt.offset == (bfd_vma) -1)
3053 abort ();
3054
3055 plt_sec = htab->elf.splt;
3056 if (! plt_sec)
3057 plt_sec =htab->elf.iplt;
3058
3059 switch (r_type)
3060 {
00c50991
DM		 3061 case R_SPARC_GOTDATA_OP:
3062 continue;
3063
d0c9aeb3
DM		 3064 case R_SPARC_GOTDATA_OP_HIX22:
3065 case R_SPARC_GOTDATA_OP_LOX10:
00c50991
DM		 3066 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3067 ? R_SPARC_GOT22
3068 : R_SPARC_GOT10);
3069 howto = _bfd_sparc_elf_howto_table + r_type;
3070 /* Fall through. */
3071
d0c9aeb3
DM		 3072 case R_SPARC_GOT10:
3073 case R_SPARC_GOT13:
3074 case R_SPARC_GOT22:
3075 if (htab->elf.sgot == NULL)
3076 abort ();
3077 off = h->got.offset;
3078 if (off == (bfd_vma) -1)
3079 abort();
3080 relocation = htab->elf.sgot->output_offset + off - got_base;
3081 goto do_relocation;
3082
3083 case R_SPARC_WPLT30:
3084 case R_SPARC_WDISP30:
3085 relocation = (plt_sec->output_section->vma
3086 + plt_sec->output_offset + h->plt.offset);
3087 goto do_relocation;
3088
3089 case R_SPARC_32:
3090 case R_SPARC_64:
0e1862bb 3091 if (bfd_link_pic (info) && h->non_got_ref)
d0c9aeb3
DM		 3092 {
3093 Elf_Internal_Rela outrel;
3094 bfd_vma offset;
3095
3096 offset = _bfd_elf_section_offset (output_bfd, info,
3097 input_section,
3098 rel->r_offset);
3099 if (offset == (bfd_vma) -1
3100 || offset == (bfd_vma) -2)
3101 abort();
3102
3103 outrel.r_offset = (input_section->output_section->vma
3104 + input_section->output_offset
3105 + offset);
3106
3107 if (h->dynindx == -1
3108 || h->forced_local
0e1862bb 3109 || bfd_link_executable (info))
d0c9aeb3
DM		 3110 {
3111 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3112 0, R_SPARC_IRELATIVE);
3113 outrel.r_addend = relocation + rel->r_addend;
3114 }
3115 else
3116 {
3117 if (h->dynindx == -1)
3118 abort();
3119 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3120 outrel.r_addend = rel->r_addend;
3121 }
3122
3123 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3124 continue;
3125 }
3126
3127 relocation = (plt_sec->output_section->vma
3128 + plt_sec->output_offset + h->plt.offset);
3129 goto do_relocation;
3130
3131 case R_SPARC_HI22:
3132 case R_SPARC_LO10:
3133 /* We should only see such relocs in static links. */
0e1862bb 3134 if (bfd_link_pic (info))
d0c9aeb3
DM		 3135 abort();
3136 relocation = (plt_sec->output_section->vma
3137 + plt_sec->output_offset + h->plt.offset);
3138 goto do_relocation;
3139
3140 default:
3141 if (h->root.root.string)
3142 name = h->root.root.string;
3143 else
3144 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3145 NULL);
4eca0228 3146 _bfd_error_handler
695344c0 3147 /* xgettext:c-format */
d0c9aeb3
DM		 3148 (_("%B: relocation %s against STT_GNU_IFUNC "
3149 "symbol `%s' isn't handled by %s"), input_bfd,
3150 _bfd_sparc_elf_howto_table[r_type].name,
3151 name, __FUNCTION__);
3152 bfd_set_error (bfd_error_bad_value);
3153 return FALSE;
3154 }
3155 }
3156
bb1dd176
QZ		 3157 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
3158 resolved_to_zero = (eh != NULL
3159 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh));
3160
22b75d0a
DM		 3161 switch (r_type)
3162 {
739f7f82
DM		 3163 case R_SPARC_GOTDATA_OP_HIX22:
3164 case R_SPARC_GOTDATA_OP_LOX10:
5b86074c 3165 if (gdop_relative_offset_ok (info, h, relocation))
cc133f9f
JC		 3166 {
3167 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3168 ? R_SPARC_GOTDATA_HIX22
3169 : R_SPARC_GOTDATA_LOX10);
3170 howto = _bfd_sparc_elf_howto_table + r_type;
3171 }
00c50991
DM		 3172 break;
3173
3174 case R_SPARC_GOTDATA_OP:
5b86074c 3175 if (gdop_relative_offset_ok (info, h, relocation))
00c50991
DM		 3176 {
3177 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3178
3179 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3180 relocation = 0x80000000 | (insn & 0x3e07c01f);
3181 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3182 }
3183 continue;
3184 }
3185
3186 switch (r_type)
3187 {
3188 case R_SPARC_GOTDATA_HIX22:
3189 case R_SPARC_GOTDATA_LOX10:
3190 relocation = gdopoff (info, relocation);
3191 break;
739f7f82 3192
cc133f9f
JC		 3193 case R_SPARC_GOTDATA_OP_HIX22:
3194 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 3195 case R_SPARC_GOT10:
3196 case R_SPARC_GOT13:
3197 case R_SPARC_GOT22:
3198 /* Relocation is to the entry for this symbol in the global
3199 offset table. */
72fbc6e5 3200 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3201 abort ();
3202
ec1acaba 3203 relative_reloc = FALSE;
22b75d0a
DM		 3204 if (h != NULL)
3205 {
3206 bfd_boolean dyn;
3207
3208 off = h->got.offset;
3209 BFD_ASSERT (off != (bfd_vma) -1);
3210 dyn = elf_hash_table (info)->dynamic_sections_created;
3211
0e1862bb
L		 3212 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3213 bfd_link_pic (info),
3214 h)
3215 || (bfd_link_pic (info)
72fbc6e5 3216 && SYMBOL_REFERENCES_LOCAL (info, h)))
22b75d0a
DM		 3217 {
3218 /* This is actually a static link, or it is a
3219 -Bsymbolic link and the symbol is defined
3220 locally, or the symbol was forced to be local
3221 because of a version file. We must initialize
3222 this entry in the global offset table. Since the
3223 offset must always be a multiple of 8 for 64-bit
3224 and 4 for 32-bit, we use the least significant bit
3225 to record whether we have initialized it already.
3226
3227 When doing a dynamic link, we create a .rela.got
3228 relocation entry to initialize the value. This
3229 is done in the finish_dynamic_symbol routine. */
3230 if ((off & 1) != 0)
3231 off &= ~1;
3232 else
3233 {
3234 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
72fbc6e5 3235 htab->elf.sgot->contents + off);
22b75d0a 3236 h->got.offset |= 1;
ec1acaba
EB		 3237
3238 if (h->dynindx == -1
3239 && !h->forced_local
3240 && h->root.type != bfd_link_hash_undefweak
3241 && bfd_link_pic (info))
3242 {
3243 /* If this symbol isn't dynamic in PIC
3244 generate R_SPARC_RELATIVE here. */
3245 relative_reloc = TRUE;
3246 }
22b75d0a
DM		 3247 }
3248 }
3249 else
3250 unresolved_reloc = FALSE;
3251 }
3252 else
3253 {
3254 BFD_ASSERT (local_got_offsets != NULL
3255 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3256
3257 off = local_got_offsets[r_symndx];
3258
3259 /* The offset must always be a multiple of 8 on 64-bit and
3260 4 on 32-bit. We use the least significant bit to record
3261 whether we have already processed this entry. */
3262 if ((off & 1) != 0)
3263 off &= ~1;
3264 else
3265 {
0e1862bb 3266 if (bfd_link_pic (info))
22b75d0a 3267 {
ec1acaba 3268 relative_reloc = TRUE;
22b75d0a
DM		 3269 }
3270
3271 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
72fbc6e5 3272 htab->elf.sgot->contents + off);
22b75d0a
DM		 3273 local_got_offsets[r_symndx] |= 1;
3274 }
3275 }
ec1acaba
EB		 3276
3277 if (relative_reloc)
3278 {
3279 asection *s;
3280 Elf_Internal_Rela outrel;
3281
3282 /* We need to generate a R_SPARC_RELATIVE reloc
3283 for the dynamic linker. */
3284 s = htab->elf.srelgot;
3285 BFD_ASSERT (s != NULL);
3286
3287 outrel.r_offset = (htab->elf.sgot->output_section->vma
3288 + htab->elf.sgot->output_offset
3289 + off);
3290 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3291 0, R_SPARC_RELATIVE);
3292 outrel.r_addend = relocation;
3293 relocation = 0;
3294 sparc_elf_append_rela (output_bfd, s, &outrel);
3295 }
3296
72fbc6e5 3297 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3298 break;
3299
3300 case R_SPARC_PLT32:
3301 case R_SPARC_PLT64:
3302 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3303 {
3304 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3305 goto r_sparc_plt32;
3306 }
3307 /* Fall through. */
3308
3309 case R_SPARC_WPLT30:
3310 case R_SPARC_HIPLT22:
3311 case R_SPARC_LOPLT10:
3312 case R_SPARC_PCPLT32:
3313 case R_SPARC_PCPLT22:
3314 case R_SPARC_PCPLT10:
3315 r_sparc_wplt30:
3316 /* Relocation is to the entry for this symbol in the
3317 procedure linkage table. */
3318
3319 if (! ABI_64_P (output_bfd))
3320 {
3321 /* The Solaris native assembler will generate a WPLT30 reloc
3322 for a local symbol if you assemble a call from one
3323 section to another when using -K pic. We treat it as
3324 WDISP30. */
3325 if (h == NULL)
3326 break;
3327 }
68ffbac6 3328 /* PR 7027: We need similar behaviour for 64-bit binaries. */
af1fb11f
NC		 3329 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3330 break;
22b75d0a
DM		 3331 else
3332 {
3333 BFD_ASSERT (h != NULL);
3334 }
3335
72fbc6e5 3336 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
22b75d0a
DM		 3337 {
3338 /* We didn't make a PLT entry for this symbol. This
3339 happens when statically linking PIC code, or when
3340 using -Bsymbolic. */
3341 break;
3342 }
3343
72fbc6e5
DM		 3344 relocation = (htab->elf.splt->output_section->vma
3345 + htab->elf.splt->output_offset
22b75d0a
DM		 3346 + h->plt.offset);
3347 unresolved_reloc = FALSE;
3348 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3349 {
3350 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3351 is_plt = TRUE;
3352 goto r_sparc_plt32;
3353 }
3354 break;
3355
3356 case R_SPARC_PC10:
3357 case R_SPARC_PC22:
3358 case R_SPARC_PC_HH22:
3359 case R_SPARC_PC_HM10:
3360 case R_SPARC_PC_LM22:
3361 if (h != NULL
3362 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3363 break;
3364 /* Fall through. */
3365 case R_SPARC_DISP8:
3366 case R_SPARC_DISP16:
3367 case R_SPARC_DISP32:
3368 case R_SPARC_DISP64:
3369 case R_SPARC_WDISP30:
3370 case R_SPARC_WDISP22:
3371 case R_SPARC_WDISP19:
3372 case R_SPARC_WDISP16:
2615994e 3373 case R_SPARC_WDISP10:
22b75d0a
DM		 3374 case R_SPARC_8:
3375 case R_SPARC_16:
3376 case R_SPARC_32:
3377 case R_SPARC_HI22:
3378 case R_SPARC_22:
3379 case R_SPARC_13:
3380 case R_SPARC_LO10:
3381 case R_SPARC_UA16:
3382 case R_SPARC_UA32:
3383 case R_SPARC_10:
3384 case R_SPARC_11:
3385 case R_SPARC_64:
3386 case R_SPARC_OLO10:
3387 case R_SPARC_HH22:
3388 case R_SPARC_HM10:
3389 case R_SPARC_LM22:
3390 case R_SPARC_7:
3391 case R_SPARC_5:
3392 case R_SPARC_6:
3393 case R_SPARC_HIX22:
3394 case R_SPARC_LOX10:
3395 case R_SPARC_H44:
3396 case R_SPARC_M44:
3397 case R_SPARC_L44:
2615994e 3398 case R_SPARC_H34:
22b75d0a
DM		 3399 case R_SPARC_UA64:
3400 r_sparc_plt32:
3348747a
NS		 3401 if ((input_section->flags & SEC_ALLOC) == 0
3402 || is_vxworks_tls)
22b75d0a
DM		 3403 break;
3404
bb1dd176
QZ		 3405 /* Copy dynamic function pointer relocations. Don't generate
3406 dynamic relocations against resolved undefined weak symbols
3407 in PIE. */
0e1862bb 3408 if ((bfd_link_pic (info)
22b75d0a 3409 && (h == NULL
bb1dd176
QZ		 3410 || ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3411 && !resolved_to_zero)
3412 || h->root.type != bfd_link_hash_undefweak))
22b75d0a 3413 && (! howto->pc_relative
72fbc6e5 3414 || !SYMBOL_CALLS_LOCAL (info, h)))
0e1862bb 3415 || (!bfd_link_pic (info)
22b75d0a
DM		 3416 && h != NULL
3417 && h->dynindx != -1
3418 && !h->non_got_ref
3419 && ((h->def_dynamic
3420 && !h->def_regular)
bb1dd176
QZ		 3421 || (h->root.type == bfd_link_hash_undefweak
3422 && !resolved_to_zero)
22b75d0a
DM		 3423 || h->root.type == bfd_link_hash_undefined)))
3424 {
3425 Elf_Internal_Rela outrel;
3426 bfd_boolean skip, relocate = FALSE;
3427
3428 /* When generating a shared object, these relocations
3429 are copied into the output file to be resolved at run
3430 time. */
3431
3432 BFD_ASSERT (sreloc != NULL);
3433
3434 skip = FALSE;
3435
3436 outrel.r_offset =
3437 _bfd_elf_section_offset (output_bfd, info, input_section,
3438 rel->r_offset);
3439 if (outrel.r_offset == (bfd_vma) -1)
3440 skip = TRUE;
3441 else if (outrel.r_offset == (bfd_vma) -2)
3442 skip = TRUE, relocate = TRUE;
3443 outrel.r_offset += (input_section->output_section->vma
3444 + input_section->output_offset);
3445
3446 /* Optimize unaligned reloc usage now that we know where
3447 it finally resides. */
3448 switch (r_type)
3449 {
3450 case R_SPARC_16:
3451 if (outrel.r_offset & 1)
3452 r_type = R_SPARC_UA16;
3453 break;
3454 case R_SPARC_UA16:
3455 if (!(outrel.r_offset & 1))
3456 r_type = R_SPARC_16;
3457 break;
3458 case R_SPARC_32:
3459 if (outrel.r_offset & 3)
3460 r_type = R_SPARC_UA32;
3461 break;
3462 case R_SPARC_UA32:
3463 if (!(outrel.r_offset & 3))
3464 r_type = R_SPARC_32;
3465 break;
3466 case R_SPARC_64:
3467 if (outrel.r_offset & 7)
3468 r_type = R_SPARC_UA64;
3469 break;
3470 case R_SPARC_UA64:
3471 if (!(outrel.r_offset & 7))
3472 r_type = R_SPARC_64;
3473 break;
3474 case R_SPARC_DISP8:
3475 case R_SPARC_DISP16:
3476 case R_SPARC_DISP32:
3477 case R_SPARC_DISP64:
3478 /* If the symbol is not dynamic, we should not keep
3479 a dynamic relocation. But an .rela.* slot has been
3480 allocated for it, output R_SPARC_NONE.
3481 FIXME: Add code tracking needed dynamic relocs as
3482 e.g. i386 has. */
3483 if (h->dynindx == -1)
3484 skip = TRUE, relocate = TRUE;
3485 break;
3486 }
3487
3488 if (skip)
3489 memset (&outrel, 0, sizeof outrel);
3490 /* h->dynindx may be -1 if the symbol was marked to
3491 become local. */
886a2506
NC		 3492 else if (h != NULL
3493 && h->dynindx != -1
3494 && (_bfd_sparc_elf_howto_table[r_type].pc_relative
0e1862bb 3495 || !bfd_link_pic (info)
72fbc6e5 3496 || !SYMBOLIC_BIND (info, h)
22b75d0a
DM		 3497 || !h->def_regular))
3498 {
3499 BFD_ASSERT (h->dynindx != -1);
3500 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3501 outrel.r_addend = rel->r_addend;
3502 }
3503 else
3504 {
7160c10d
JC		 3505 if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3506 || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
22b75d0a
DM		 3507 {
3508 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3509 0, R_SPARC_RELATIVE);
3510 outrel.r_addend = relocation + rel->r_addend;
3511 }
3512 else
3513 {
3514 long indx;
3515
74541ad4
AM		 3516 outrel.r_addend = relocation + rel->r_addend;
3517
22b75d0a 3518 if (is_plt)
72fbc6e5 3519 sec = htab->elf.splt;
22b75d0a
DM		 3520
3521 if (bfd_is_abs_section (sec))
3522 indx = 0;
3523 else if (sec == NULL || sec->owner == NULL)
3524 {
3525 bfd_set_error (bfd_error_bad_value);
3526 return FALSE;
3527 }
3528 else
3529 {
3530 asection *osec;
3531
74541ad4
AM		 3532 /* We are turning this relocation into one
3533 against a section symbol. It would be
3534 proper to subtract the symbol's value,
3535 osec->vma, from the emitted reloc addend,
3536 but ld.so expects buggy relocs. */
22b75d0a
DM		 3537 osec = sec->output_section;
3538 indx = elf_section_data (osec)->dynindx;
3539
74541ad4
AM		 3540 if (indx == 0)
3541 {
3542 osec = htab->elf.text_index_section;
3543 indx = elf_section_data (osec)->dynindx;
3544 }
3545
22b75d0a
DM		 3546 /* FIXME: we really should be able to link non-pic
3547 shared libraries. */
3548 if (indx == 0)
3549 {
3550 BFD_FAIL ();
4eca0228 3551 _bfd_error_handler
22b75d0a
DM		 3552 (_("%B: probably compiled without -fPIC?"),
3553 input_bfd);
3554 bfd_set_error (bfd_error_bad_value);
3555 return FALSE;
3556 }
3557 }
3558
74541ad4
AM		 3559 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3560 r_type);
22b75d0a
DM		 3561 }
3562 }
3563
39817122 3564 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3565
3566 /* This reloc will be computed at runtime, so there's no
3567 need to do anything now. */
3568 if (! relocate)
3569 continue;
3570 }
3571 break;
3572
3573 case R_SPARC_TLS_GD_HI22:
3574 if (! ABI_64_P (input_bfd)
3575 && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
3576 {
3577 /* R_SPARC_REV32 used the same reloc number as
3578 R_SPARC_TLS_GD_HI22. */
3579 r_type = R_SPARC_REV32;
3580 break;
3581 }
3582 /* Fall through */
3583
3584 case R_SPARC_TLS_GD_LO10:
3585 case R_SPARC_TLS_IE_HI22:
3586 case R_SPARC_TLS_IE_LO10:
3587 r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
3588 tls_type = GOT_UNKNOWN;
3589 if (h == NULL && local_got_offsets)
3590 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3591 else if (h != NULL)
3592 {
3593 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
0fb7012e 3594 if (bfd_link_executable (info)
0e1862bb
L		 3595 && h->dynindx == -1
3596 && tls_type == GOT_TLS_IE)
22b75d0a
DM		 3597 switch (SPARC_ELF_R_TYPE (rel->r_info))
3598 {
3599 case R_SPARC_TLS_GD_HI22:
3600 case R_SPARC_TLS_IE_HI22:
3601 r_type = R_SPARC_TLS_LE_HIX22;
3602 break;
3603 default:
3604 r_type = R_SPARC_TLS_LE_LOX10;
3605 break;
3606 }
3607 }
3608 if (tls_type == GOT_TLS_IE)
3609 switch (r_type)
3610 {
3611 case R_SPARC_TLS_GD_HI22:
3612 r_type = R_SPARC_TLS_IE_HI22;
3613 break;
3614 case R_SPARC_TLS_GD_LO10:
3615 r_type = R_SPARC_TLS_IE_LO10;
3616 break;
3617 }
3618
3619 if (r_type == R_SPARC_TLS_LE_HIX22)
3620 {
3621 relocation = tpoff (info, relocation);
3622 break;
3623 }
3624 if (r_type == R_SPARC_TLS_LE_LOX10)
3625 {
3626 /* Change add into xor. */
3627 relocation = tpoff (info, relocation);
3628 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3629 contents + rel->r_offset)
3630 | 0x80182000), contents + rel->r_offset);
3631 break;
3632 }
3633
3634 if (h != NULL)
3635 {
3636 off = h->got.offset;
3637 h->got.offset |= 1;
3638 }
3639 else
3640 {
3641 BFD_ASSERT (local_got_offsets != NULL);
3642 off = local_got_offsets[r_symndx];
3643 local_got_offsets[r_symndx] |= 1;
3644 }
3645
3646 r_sparc_tlsldm:
72fbc6e5 3647 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3648 abort ();
3649
3650 if ((off & 1) != 0)
3651 off &= ~1;
3652 else
3653 {
3654 Elf_Internal_Rela outrel;
3655 int dr_type, indx;
3656
72fbc6e5 3657 if (htab->elf.srelgot == NULL)
22b75d0a
DM		 3658 abort ();
3659
72fbc6e5
DM		 3660 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3661 htab->elf.sgot->contents + off);
3662 outrel.r_offset = (htab->elf.sgot->output_section->vma
3663 + htab->elf.sgot->output_offset + off);
22b75d0a
DM		 3664 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3665 if (r_type == R_SPARC_TLS_IE_HI22
3666 || r_type == R_SPARC_TLS_IE_LO10)
3667 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3668 else
3669 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3670 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3671 outrel.r_addend = relocation - dtpoff_base (info);
3672 else
3673 outrel.r_addend = 0;
3674 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
72fbc6e5 3675 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
22b75d0a
DM		 3676
3677 if (r_type == R_SPARC_TLS_GD_HI22
3678 || r_type == R_SPARC_TLS_GD_LO10)
3679 {
3680 if (indx == 0)
3681 {
3682 BFD_ASSERT (! unresolved_reloc);
3683 SPARC_ELF_PUT_WORD (htab, output_bfd,
3684 relocation - dtpoff_base (info),
72fbc6e5 3685 (htab->elf.sgot->contents + off
22b75d0a
DM		 3686 + SPARC_ELF_WORD_BYTES (htab)));
3687 }
3688 else
3689 {
3690 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3691 (htab->elf.sgot->contents + off
22b75d0a
DM		 3692 + SPARC_ELF_WORD_BYTES (htab)));
3693 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3694 SPARC_ELF_DTPOFF_RELOC (htab));
3695 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
72fbc6e5 3696 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
39817122 3697 &outrel);
22b75d0a
DM		 3698 }
3699 }
3700 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3701 {
3702 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3703 (htab->elf.sgot->contents + off
22b75d0a
DM		 3704 + SPARC_ELF_WORD_BYTES (htab)));
3705 }
3706 }
3707
3708 if (off >= (bfd_vma) -2)
3709 abort ();
3710
72fbc6e5 3711 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3712 unresolved_reloc = FALSE;
3713 howto = _bfd_sparc_elf_howto_table + r_type;
3714 break;
3715
3716 case R_SPARC_TLS_LDM_HI22:
3717 case R_SPARC_TLS_LDM_LO10:
0e1862bb 3718 if (! bfd_link_pic (info))
22b75d0a
DM		 3719 {
3720 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3721 continue;
3722 }
3723 off = htab->tls_ldm_got.offset;
3724 htab->tls_ldm_got.offset |= 1;
3725 goto r_sparc_tlsldm;
3726
3727 case R_SPARC_TLS_LDO_HIX22:
3728 case R_SPARC_TLS_LDO_LOX10:
0e1862bb 3729 if (bfd_link_pic (info))
22b75d0a
DM		 3730 {
3731 relocation -= dtpoff_base (info);
3732 break;
3733 }
3734
3735 r_type = (r_type == R_SPARC_TLS_LDO_HIX22
3736 ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
3737 /* Fall through. */
3738
3739 case R_SPARC_TLS_LE_HIX22:
3740 case R_SPARC_TLS_LE_LOX10:
0fb7012e 3741 if (!bfd_link_executable (info))
22b75d0a
DM		 3742 {
3743 Elf_Internal_Rela outrel;
c7e2358a 3744 bfd_boolean skip;
22b75d0a
DM		 3745
3746 BFD_ASSERT (sreloc != NULL);
3747 skip = FALSE;
3748 outrel.r_offset =
3749 _bfd_elf_section_offset (output_bfd, info, input_section,
3750 rel->r_offset);
3751 if (outrel.r_offset == (bfd_vma) -1)
3752 skip = TRUE;
3753 else if (outrel.r_offset == (bfd_vma) -2)
c7e2358a 3754 skip = TRUE;
22b75d0a
DM		 3755 outrel.r_offset += (input_section->output_section->vma
3756 + input_section->output_offset);
3757 if (skip)
3758 memset (&outrel, 0, sizeof outrel);
3759 else
3760 {
3761 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3762 outrel.r_addend = relocation - dtpoff_base (info)
3763 + rel->r_addend;
3764 }
3765
39817122 3766 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3767 continue;
3768 }
3769 relocation = tpoff (info, relocation);
3770 break;
3771
3772 case R_SPARC_TLS_LDM_CALL:
0fb7012e 3773 if (bfd_link_executable (info))
22b75d0a
DM		 3774 {
3775 /* mov %g0, %o0 */
3776 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3777 continue;
3778 }
3779 /* Fall through */
3780
3781 case R_SPARC_TLS_GD_CALL:
3782 tls_type = GOT_UNKNOWN;
3783 if (h == NULL && local_got_offsets)
3784 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3785 else if (h != NULL)
3786 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
0fb7012e 3787 if (bfd_link_executable (info)
22b75d0a
DM		 3788 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3789 {
abd242a9 3790 Elf_Internal_Rela *rel2;
22b75d0a
DM		 3791 bfd_vma insn;
3792
0e1862bb 3793 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
22b75d0a
DM		 3794 {
3795 /* GD -> LE */
3796 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3797 continue;
3798 }
3799
3800 /* GD -> IE */
3801 if (rel + 1 < relend
3802 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3803 && rel[1].r_offset == rel->r_offset + 4
3804 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3805 && (((insn = bfd_get_32 (input_bfd,
3806 contents + rel[1].r_offset))
3807 >> 25) & 0x1f) == 8)
3808 {
3809 /* We have
3810 call __tls_get_addr, %tgd_call(foo)
3811 add %reg1, %reg2, %o0, %tgd_add(foo)
3812 and change it into IE:
3813 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3814 add %g7, %o0, %o0, %tie_add(foo).
3815 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3816 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3817 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3818 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3819 contents + rel->r_offset);
3820 bfd_put_32 (output_bfd, 0x9001c008,
3821 contents + rel->r_offset + 4);
3822 rel++;
3823 continue;
3824 }
3825
abd242a9
DM		 3826 /* We cannot just overwrite the delay slot instruction,
3827 as it might be what puts the %o0 argument to
3828 __tls_get_addr into place. So we have to transpose
3829 the delay slot with the add we patch in. */
3830 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3831 bfd_put_32 (output_bfd, insn,
3832 contents + rel->r_offset);
3833 bfd_put_32 (output_bfd, 0x9001c008,
3834 contents + rel->r_offset + 4);
3835
3836 rel2 = rel;
3837 while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3838 rel->r_offset + 4))
3839 != NULL)
3840 {
3841 /* If the instruction we moved has a relocation attached to
3842 it, adjust the offset so that it will apply to the correct
3843 instruction. */
3844 rel2->r_offset -= 4;
3845 }
22b75d0a
DM		 3846 continue;
3847 }
3848
3849 h = (struct elf_link_hash_entry *)
3850 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3851 FALSE, TRUE);
3852 BFD_ASSERT (h != NULL);
3853 r_type = R_SPARC_WPLT30;
3854 howto = _bfd_sparc_elf_howto_table + r_type;
3855 goto r_sparc_wplt30;
3856
3857 case R_SPARC_TLS_GD_ADD:
3858 tls_type = GOT_UNKNOWN;
3859 if (h == NULL && local_got_offsets)
3860 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3861 else if (h != NULL)
3862 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
0e1862bb 3863 if (! bfd_link_pic (info) || tls_type == GOT_TLS_IE)
22b75d0a
DM		 3864 {
3865 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3866 changed into IE:
3867 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3868 or LE:
3869 add %g7, %reg2, %reg3. */
3870 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
0e1862bb 3871 if ((h != NULL && h->dynindx != -1) || bfd_link_pic (info))
22b75d0a
DM		 3872 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
3873 else
3874 relocation = (insn & ~0x7c000) | 0x1c000;
3875 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3876 }
3877 continue;
3878
3879 case R_SPARC_TLS_LDM_ADD:
0e1862bb 3880 if (! bfd_link_pic (info))
22b75d0a
DM		 3881 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3882 continue;
3883
3884 case R_SPARC_TLS_LDO_ADD:
0e1862bb 3885 if (! bfd_link_pic (info))
22b75d0a
DM		 3886 {
3887 /* Change rs1 into %g7. */
3888 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3889 insn = (insn & ~0x7c000) | 0x1c000;
3890 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3891 }
3892 continue;
3893
3894 case R_SPARC_TLS_IE_LD:
3895 case R_SPARC_TLS_IE_LDX:
0fb7012e 3896 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
22b75d0a
DM		 3897 {
3898 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3899 int rs2 = insn & 0x1f;
3900 int rd = (insn >> 25) & 0x1f;
3901
3902 if (rs2 == rd)
3903 relocation = SPARC_NOP;
3904 else
3905 relocation = 0x80100000 | (insn & 0x3e00001f);
3906 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3907 }
3908 continue;
3909
3910 case R_SPARC_TLS_IE_ADD:
3911 /* Totally useless relocation. */
3912 continue;
3913
3914 case R_SPARC_TLS_DTPOFF32:
3915 case R_SPARC_TLS_DTPOFF64:
3916 relocation -= dtpoff_base (info);
3917 break;
3918
3919 default:
3920 break;
3921 }
3922
3923 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3924 because such sections are not SEC_ALLOC and thus ld.so will
3925 not process them. */
3926 if (unresolved_reloc
3927 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 3928 && h->def_dynamic)
3929 && _bfd_elf_section_offset (output_bfd, info, input_section,
3930 rel->r_offset) != (bfd_vma) -1)
4eca0228 3931 _bfd_error_handler
695344c0 3932 /* xgettext:c-format */
d42c267e 3933 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
22b75d0a
DM		 3934 input_bfd,
3935 input_section,
d42c267e 3936 rel->r_offset,
843fe662 3937 howto->name,
22b75d0a
DM		 3938 h->root.root.string);
3939
3940 r = bfd_reloc_continue;
3941 if (r_type == R_SPARC_OLO10)
3942 {
3943 bfd_vma x;
3944
3945 if (! ABI_64_P (output_bfd))
3946 abort ();
3947
3948 relocation += rel->r_addend;
3949 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3950
3951 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3952 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3953 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3954
3955 r = bfd_check_overflow (howto->complain_on_overflow,
3956 howto->bitsize, howto->rightshift,
3957 bfd_arch_bits_per_address (input_bfd),
3958 relocation);
3959 }
3960 else if (r_type == R_SPARC_WDISP16)
3961 {
3962 bfd_vma x;
3963
3964 relocation += rel->r_addend;
3965 relocation -= (input_section->output_section->vma
3966 + input_section->output_offset);
3967 relocation -= rel->r_offset;
3968
3969 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3970 x |= ((((relocation >> 2) & 0xc000) << 6)
3971 | ((relocation >> 2) & 0x3fff));
3972 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3973
2615994e
DM		 3974 r = bfd_check_overflow (howto->complain_on_overflow,
3975 howto->bitsize, howto->rightshift,
3976 bfd_arch_bits_per_address (input_bfd),
3977 relocation);
3978 }
3979 else if (r_type == R_SPARC_WDISP10)
3980 {
3981 bfd_vma x;
3982
3983 relocation += rel->r_addend;
3984 relocation -= (input_section->output_section->vma
3985 + input_section->output_offset);
3986 relocation -= rel->r_offset;
3987
3988 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3989 x |= ((((relocation >> 2) & 0x300) << 11)
3990 | (((relocation >> 2) & 0xff) << 5));
3991 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3992
22b75d0a
DM		 3993 r = bfd_check_overflow (howto->complain_on_overflow,
3994 howto->bitsize, howto->rightshift,
3995 bfd_arch_bits_per_address (input_bfd),
3996 relocation);
3997 }
3998 else if (r_type == R_SPARC_REV32)
3999 {
4000 bfd_vma x;
4001
4002 relocation = relocation + rel->r_addend;
4003
4004 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4005 x = x + relocation;
4006 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
4007 r = bfd_reloc_ok;
4008 }
4009 else if (r_type == R_SPARC_TLS_LDO_HIX22
4010 || r_type == R_SPARC_TLS_LE_HIX22)
4011 {
4012 bfd_vma x;
4013
4014 relocation += rel->r_addend;
4015 if (r_type == R_SPARC_TLS_LE_HIX22)
4016 relocation ^= MINUS_ONE;
4017
4018 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4019 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4020 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4021 r = bfd_reloc_ok;
4022 }
4023 else if (r_type == R_SPARC_TLS_LDO_LOX10
4024 || r_type == R_SPARC_TLS_LE_LOX10)
4025 {
4026 bfd_vma x;
4027
4028 relocation += rel->r_addend;
4029 relocation &= 0x3ff;
4030 if (r_type == R_SPARC_TLS_LE_LOX10)
4031 relocation |= 0x1c00;
4032
4033 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4034 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4035 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4036
4037 r = bfd_reloc_ok;
4038 }
00c50991 4039 else if (r_type == R_SPARC_HIX22
cc133f9f
JC		 4040 || r_type == R_SPARC_GOTDATA_HIX22
4041 || r_type == R_SPARC_GOTDATA_OP_HIX22)
22b75d0a
DM		 4042 {
4043 bfd_vma x;
4044
4045 relocation += rel->r_addend;
00c50991
DM		 4046 if (r_type == R_SPARC_HIX22
4047 || (bfd_signed_vma) relocation < 0)
4048 relocation = relocation ^ MINUS_ONE;
22b75d0a
DM		 4049
4050 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4051 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4052 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4053
4054 r = bfd_check_overflow (howto->complain_on_overflow,
4055 howto->bitsize, howto->rightshift,
4056 bfd_arch_bits_per_address (input_bfd),
4057 relocation);
4058 }
00c50991 4059 else if (r_type == R_SPARC_LOX10
cc133f9f
JC		 4060 || r_type == R_SPARC_GOTDATA_LOX10
4061 || r_type == R_SPARC_GOTDATA_OP_LOX10)
22b75d0a
DM		 4062 {
4063 bfd_vma x;
4064
4065 relocation += rel->r_addend;
00c50991
DM		 4066 if (r_type == R_SPARC_LOX10
4067 || (bfd_signed_vma) relocation < 0)
4068 relocation = (relocation & 0x3ff) | 0x1c00;
4069 else
4070 relocation = (relocation & 0x3ff);
22b75d0a
DM		 4071
4072 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4073 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4074 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4075
4076 r = bfd_reloc_ok;
4077 }
4078 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
4079 && sec_do_relax (input_section)
4080 && rel->r_offset + 4 < input_section->size)
4081 {
4082#define G0 0
4083#define O7 15
4084#define XCC (2 << 20)
4085#define COND(x) (((x)&0xf)<<25)
4086#define CONDA COND(0x8)
4087#define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
4088#define INSN_BA (F2(0,2) | CONDA)
4089#define INSN_OR F3(2, 0x2, 0)
4090#define INSN_NOP F2(0,4)
4091
4092 bfd_vma x, y;
4093
4094 /* If the instruction is a call with either:
4095 restore
4096 arithmetic instruction with rd == %o7
4097 where rs1 != %o7 and rs2 if it is register != %o7
4098 then we can optimize if the call destination is near
4099 by changing the call into a branch always. */
4100 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4101 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
4102 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
4103 {
4104 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
4105 || ((y & OP3(0x28)) == 0 /* arithmetic */
4106 && (y & RD(~0)) == RD(O7)))
4107 && (y & RS1(~0)) != RS1(O7)
4108 && ((y & F3I(~0))
4109 || (y & RS2(~0)) != RS2(O7)))
4110 {
4111 bfd_vma reloc;
4112
4113 reloc = relocation + rel->r_addend - rel->r_offset;
4114 reloc -= (input_section->output_section->vma
4115 + input_section->output_offset);
4116
4117 /* Ensure the branch fits into simm22. */
4118 if ((reloc & 3) == 0
4119 && ((reloc & ~(bfd_vma)0x7fffff) == 0
4120 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4121 {
4122 reloc >>= 2;
4123
4124 /* Check whether it fits into simm19. */
4125 if (((reloc & 0x3c0000) == 0
4126 || (reloc & 0x3c0000) == 0x3c0000)
4127 && (ABI_64_P (output_bfd)
4128 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4129 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4130 else
4131 x = INSN_BA | (reloc & 0x3fffff); /* ba */
4132 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4133 r = bfd_reloc_ok;
4134 if (rel->r_offset >= 4
4135 && (y & (0xffffffff ^ RS1(~0)))
4136 == (INSN_OR | RD(O7) | RS2(G0)))
4137 {
4138 bfd_vma z;
4139 unsigned int reg;
4140
4141 z = bfd_get_32 (input_bfd,
4142 contents + rel->r_offset - 4);
4143 if ((z & (0xffffffff ^ RD(~0)))
4144 != (INSN_OR | RS1(O7) | RS2(G0)))
597e138c 4145 continue;
22b75d0a
DM		 4146
4147 /* The sequence was
4148 or %o7, %g0, %rN
4149 call foo
4150 or %rN, %g0, %o7
4151
4152 If call foo was replaced with ba, replace
4153 or %rN, %g0, %o7 with nop. */
4154
4155 reg = (y & RS1(~0)) >> 14;
4156 if (reg != ((z & RD(~0)) >> 25)
4157 || reg == G0 || reg == O7)
597e138c 4158 continue;
22b75d0a
DM		 4159
4160 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4161 contents + rel->r_offset + 4);
4162 }
4163
4164 }
4165 }
4166 }
4167 }
4168
4169 if (r == bfd_reloc_continue)
d0c9aeb3
DM		 4170 {
4171do_relocation:
4172 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4173 contents, rel->r_offset,
4174 relocation, rel->r_addend);
4175 }
22b75d0a
DM		 4176 if (r != bfd_reloc_ok)
4177 {
4178 switch (r)
4179 {
4180 default:
4181 case bfd_reloc_outofrange:
4182 abort ();
4183 case bfd_reloc_overflow:
4184 {
4185 const char *name;
4186
68ffbac6 4187 /* The Solaris native linker silently disregards overflows.
dc669dc8
EB		 4188 We don't, but this breaks stabs debugging info, whose
4189 relocations are only 32-bits wide. Ignore overflows in
4190 this case and also for discarded entries. */
0bef263a
RO		 4191 if ((r_type == R_SPARC_32
4192 || r_type == R_SPARC_UA32
4193 || r_type == R_SPARC_DISP32)
dc669dc8
EB		 4194 && (((input_section->flags & SEC_DEBUGGING) != 0
4195 && strcmp (bfd_section_name (input_bfd,
4196 input_section),
4197 ".stab") == 0)
4198 || _bfd_elf_section_offset (output_bfd, info,
4199 input_section,
4200 rel->r_offset)
4201 == (bfd_vma)-1))
4202 break;
4203
22b75d0a 4204 if (h != NULL)
bb29dfea
EB		 4205 {
4206 /* Assume this is a call protected by other code that
4207 detect the symbol is undefined. If this is the case,
4208 we can safely ignore the overflow. If not, the
4209 program is hosed anyway, and a little warning isn't
4210 going to help. */
4211 if (h->root.type == bfd_link_hash_undefweak
4212 && howto->pc_relative)
4213 break;
4214
4215 name = NULL;
4216 }
22b75d0a
DM		 4217 else
4218 {
4219 name = bfd_elf_string_from_elf_section (input_bfd,
4220 symtab_hdr->sh_link,
4221 sym->st_name);
4222 if (name == NULL)
4223 return FALSE;
4224 if (*name == '\0')
4225 name = bfd_section_name (input_bfd, sec);
4226 }
1a72702b
AM		 4227 (*info->callbacks->reloc_overflow)
4228 (info, (h ? &h->root : NULL), name, howto->name,
4229 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
22b75d0a
DM		 4230 }
4231 break;
4232 }
4233 }
4234 }
4235
4236 return TRUE;
4237}
4238
910600e9
RS		 4239/* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4240 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4241 is the offset of the associated .got.plt entry from
4242 _GLOBAL_OFFSET_TABLE_. */
4243
4244static void
4245sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4246 bfd_vma plt_offset, bfd_vma plt_index,
4247 bfd_vma got_offset)
4248{
4249 bfd_vma got_base;
4250 const bfd_vma *plt_entry;
4251 struct _bfd_sparc_elf_link_hash_table *htab;
4252 bfd_byte *loc;
4253 Elf_Internal_Rela rela;
4254
4255 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4256 BFD_ASSERT (htab != NULL);
4257
0e1862bb 4258 if (bfd_link_pic (info))
910600e9
RS		 4259 {
4260 plt_entry = sparc_vxworks_shared_plt_entry;
4261 got_base = 0;
4262 }
4263 else
4264 {
4265 plt_entry = sparc_vxworks_exec_plt_entry;
4266 got_base = (htab->elf.hgot->root.u.def.value
4267 + htab->elf.hgot->root.u.def.section->output_offset
4268 + htab->elf.hgot->root.u.def.section->output_section->vma);
4269 }
4270
4271 /* Fill in the entry in the procedure linkage table. */
4272 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
72fbc6e5 4273 htab->elf.splt->contents + plt_offset);
910600e9 4274 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
72fbc6e5 4275 htab->elf.splt->contents + plt_offset + 4);
910600e9 4276 bfd_put_32 (output_bfd, plt_entry[2],
72fbc6e5 4277 htab->elf.splt->contents + plt_offset + 8);
910600e9 4278 bfd_put_32 (output_bfd, plt_entry[3],
72fbc6e5 4279 htab->elf.splt->contents + plt_offset + 12);
910600e9 4280 bfd_put_32 (output_bfd, plt_entry[4],
72fbc6e5 4281 htab->elf.splt->contents + plt_offset + 16);
910600e9 4282 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
72fbc6e5 4283 htab->elf.splt->contents + plt_offset + 20);
910600e9
RS		 4284 /* PC-relative displacement for a branch to the start of
4285 the PLT section. */
4286 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4287 & 0x003fffff),
72fbc6e5 4288 htab->elf.splt->contents + plt_offset + 24);
910600e9 4289 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
72fbc6e5 4290 htab->elf.splt->contents + plt_offset + 28);
910600e9
RS		 4291
4292 /* Fill in the .got.plt entry, pointing initially at the
4293 second half of the PLT entry. */
72fbc6e5 4294 BFD_ASSERT (htab->elf.sgotplt != NULL);
910600e9 4295 bfd_put_32 (output_bfd,
72fbc6e5
DM		 4296 htab->elf.splt->output_section->vma
4297 + htab->elf.splt->output_offset
910600e9 4298 + plt_offset + 20,
72fbc6e5 4299 htab->elf.sgotplt->contents + got_offset);
910600e9
RS		 4300
4301 /* Add relocations to .rela.plt.unloaded. */
0e1862bb 4302 if (!bfd_link_pic (info))
910600e9
RS		 4303 {
4304 loc = (htab->srelplt2->contents
4305 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4306
4307 /* Relocate the initial sethi. */
72fbc6e5
DM		 4308 rela.r_offset = (htab->elf.splt->output_section->vma
4309 + htab->elf.splt->output_offset
910600e9
RS		 4310 + plt_offset);
4311 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4312 rela.r_addend = got_offset;
4313 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4314 loc += sizeof (Elf32_External_Rela);
4315
4316 /* Likewise the following or. */
4317 rela.r_offset += 4;
4318 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4319 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4320 loc += sizeof (Elf32_External_Rela);
4321
4322 /* Relocate the .got.plt entry. */
72fbc6e5
DM		 4323 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4324 + htab->elf.sgotplt->output_offset
910600e9
RS		 4325 + got_offset);
4326 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4327 rela.r_addend = plt_offset + 20;
4328 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4329 }
4330}
4331
22b75d0a
DM		 4332/* Finish up dynamic symbol handling. We set the contents of various
4333 dynamic sections here. */
4334
4335bfd_boolean
4336_bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4337 struct bfd_link_info *info,
4338 struct elf_link_hash_entry *h,
4339 Elf_Internal_Sym *sym)
4340{
22b75d0a 4341 struct _bfd_sparc_elf_link_hash_table *htab;
39817122 4342 const struct elf_backend_data *bed;
bb1dd176
QZ		 4343 struct _bfd_sparc_elf_link_hash_entry *eh;
4344 bfd_boolean local_undefweak;
22b75d0a
DM		 4345
4346 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4347 BFD_ASSERT (htab != NULL);
39817122 4348 bed = get_elf_backend_data (output_bfd);
22b75d0a 4349
bb1dd176
QZ		 4350 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4351
4352 /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4353 resolved undefined weak symbols in executable so that their
4354 references have value 0 at run-time. */
4355 local_undefweak = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
4356
22b75d0a
DM		 4357 if (h->plt.offset != (bfd_vma) -1)
4358 {
4359 asection *splt;
4360 asection *srela;
4361 Elf_Internal_Rela rela;
4362 bfd_byte *loc;
910600e9 4363 bfd_vma r_offset, got_offset;
22b75d0a
DM		 4364 int rela_index;
4365
d0c9aeb3
DM		 4366 /* When building a static executable, use .iplt and
4367 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4368 if (htab->elf.splt != NULL)
4369 {
4370 splt = htab->elf.splt;
4371 srela = htab->elf.srelplt;
4372 }
4373 else
4374 {
4375 splt = htab->elf.iplt;
4376 srela = htab->elf.irelplt;
4377 }
22b75d0a 4378
d0c9aeb3
DM		 4379 if (splt == NULL || srela == NULL)
4380 abort ();
22b75d0a 4381
22b75d0a 4382 /* Fill in the entry in the .rela.plt section. */
910600e9 4383 if (htab->is_vxworks)
22b75d0a 4384 {
910600e9
RS		 4385 /* Work out the index of this PLT entry. */
4386 rela_index = ((h->plt.offset - htab->plt_header_size)
4387 / htab->plt_entry_size);
4388
4389 /* Calculate the offset of the associated .got.plt entry.
4390 The first three entries are reserved. */
4391 got_offset = (rela_index + 3) * 4;
4392
4393 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4394 rela_index, got_offset);
4395
4396
4397 /* On VxWorks, the relocation points to the .got.plt entry,
4398 not the .plt entry. */
72fbc6e5
DM		 4399 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4400 + htab->elf.sgotplt->output_offset
910600e9 4401 + got_offset);
22b75d0a 4402 rela.r_addend = 0;
d0c9aeb3
DM		 4403 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4404 R_SPARC_JMP_SLOT);
22b75d0a
DM		 4405 }
4406 else
4407 {
d0c9aeb3
DM		 4408 bfd_boolean ifunc = FALSE;
4409
910600e9
RS		 4410 /* Fill in the entry in the procedure linkage table. */
4411 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4412 h->plt.offset, splt->size,
4413 &r_offset);
4414
d0c9aeb3
DM		 4415 if (h == NULL
4416 || h->dynindx == -1
0e1862bb 4417 || ((bfd_link_executable (info)
d0c9aeb3
DM		 4418 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4419 && h->def_regular
4420 && h->type == STT_GNU_IFUNC))
4421 {
4422 ifunc = TRUE;
4423 BFD_ASSERT (h == NULL
4424 || (h->type == STT_GNU_IFUNC
4425 && h->def_regular
4426 && (h->root.type == bfd_link_hash_defined
4427 || h->root.type == bfd_link_hash_defweak)));
4428 }
4429
910600e9
RS		 4430 rela.r_offset = r_offset
4431 + (splt->output_section->vma + splt->output_offset);
d0c9aeb3
DM		 4432 if (ABI_64_P (output_bfd)
4433 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
910600e9 4434 {
d0c9aeb3
DM		 4435 if (ifunc)
4436 {
4437 rela.r_addend = (h->root.u.def.section->output_section->vma
4438 + h->root.u.def.section->output_offset
4439 + h->root.u.def.value);
4440 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4441 R_SPARC_IRELATIVE);
4442 }
4443 else
4444 {
4445 rela.r_addend = (-(h->plt.offset + 4)
4446 - splt->output_section->vma
4447 - splt->output_offset);
4448 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4449 R_SPARC_JMP_SLOT);
4450 }
910600e9
RS		 4451 }
4452 else
4453 {
d0c9aeb3
DM		 4454 if (ifunc)
4455 {
4456 rela.r_addend = (h->root.u.def.section->output_section->vma
4457 + h->root.u.def.section->output_offset
4458 + h->root.u.def.value);
4459 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4460 R_SPARC_JMP_IREL);
4461 }
4462 else
4463 {
4464 rela.r_addend = 0;
4465 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4466 R_SPARC_JMP_SLOT);
4467 }
910600e9 4468 }
22b75d0a 4469 }
22b75d0a
DM		 4470
4471 /* Adjust for the first 4 reserved elements in the .plt section
4472 when setting the offset in the .rela.plt section.
4473 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4474 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4475
4476 loc = srela->contents;
39817122
RS		 4477 loc += rela_index * bed->s->sizeof_rela;
4478 bed->s->swap_reloca_out (output_bfd, &rela, loc);
22b75d0a 4479
bb1dd176
QZ		 4480 if (!local_undefweak
4481 && !h->def_regular)
22b75d0a
DM		 4482 {
4483 /* Mark the symbol as undefined, rather than as defined in
4484 the .plt section. Leave the value alone. */
4485 sym->st_shndx = SHN_UNDEF;
4486 /* If the symbol is weak, we do need to clear the value.
4487 Otherwise, the PLT entry would provide a definition for
4488 the symbol even if the symbol wasn't defined anywhere,
4489 and so the symbol would never be NULL. */
4490 if (!h->ref_regular_nonweak)
4491 sym->st_value = 0;
4492 }
4493 }
4494
bb1dd176
QZ		 4495 /* Don't generate dynamic GOT relocation against undefined weak
4496 symbol in executable. */
22b75d0a
DM		 4497 if (h->got.offset != (bfd_vma) -1
4498 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
bb1dd176
QZ		 4499 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
4500 && !local_undefweak)
22b75d0a
DM		 4501 {
4502 asection *sgot;
4503 asection *srela;
4504 Elf_Internal_Rela rela;
4505
4506 /* This symbol has an entry in the GOT. Set it up. */
4507
72fbc6e5
DM		 4508 sgot = htab->elf.sgot;
4509 srela = htab->elf.srelgot;
22b75d0a
DM		 4510 BFD_ASSERT (sgot != NULL && srela != NULL);
4511
4512 rela.r_offset = (sgot->output_section->vma
4513 + sgot->output_offset
4514 + (h->got.offset &~ (bfd_vma) 1));
4515
4516 /* If this is a -Bsymbolic link, and the symbol is defined
4517 locally, we just want to emit a RELATIVE reloc. Likewise if
4518 the symbol was forced to be local because of a version file.
4519 The entry in the global offset table will already have been
4520 initialized in the relocate_section function. */
0e1862bb 4521 if (! bfd_link_pic (info)
d0c9aeb3
DM		 4522 && h->type == STT_GNU_IFUNC
4523 && h->def_regular)
4524 {
4525 asection *plt;
4526
4527 /* We load the GOT entry with the PLT entry. */
4528 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4529 SPARC_ELF_PUT_WORD (htab, output_bfd,
4530 (plt->output_section->vma
4531 + plt->output_offset + h->plt.offset),
4532 htab->elf.sgot->contents
4533 + (h->got.offset & ~(bfd_vma) 1));
4534 return TRUE;
4535 }
0e1862bb 4536 else if (bfd_link_pic (info)
d0c9aeb3 4537 && SYMBOL_REFERENCES_LOCAL (info, h))
22b75d0a
DM		 4538 {
4539 asection *sec = h->root.u.def.section;
d0c9aeb3
DM		 4540 if (h->type == STT_GNU_IFUNC)
4541 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4542 else
4543 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
22b75d0a
DM		 4544 rela.r_addend = (h->root.u.def.value
4545 + sec->output_section->vma
4546 + sec->output_offset);
4547 }
4548 else
4549 {
4550 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4551 rela.r_addend = 0;
4552 }
4553
4554 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4555 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
39817122 4556 sparc_elf_append_rela (output_bfd, srela, &rela);
22b75d0a
DM		 4557 }
4558
4559 if (h->needs_copy)
4560 {
4561 asection *s;
4562 Elf_Internal_Rela rela;
4563
4564 /* This symbols needs a copy reloc. Set it up. */
4565 BFD_ASSERT (h->dynindx != -1);
4566
22b75d0a
DM		 4567 rela.r_offset = (h->root.u.def.value
4568 + h->root.u.def.section->output_section->vma
4569 + h->root.u.def.section->output_offset);
4570 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4571 rela.r_addend = 0;
afbf7e8e 4572 if (h->root.u.def.section == htab->elf.sdynrelro)
5474d94f
AM		 4573 s = htab->elf.sreldynrelro;
4574 else
4575 s = htab->elf.srelbss;
39817122 4576 sparc_elf_append_rela (output_bfd, s, &rela);
22b75d0a
DM		 4577 }
4578
910600e9
RS		 4579 /* Mark some specially defined symbols as absolute. On VxWorks,
4580 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4581 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
d0c9aeb3 4582 if (sym != NULL
9637f6ef 4583 && (h == htab->elf.hdynamic
d0c9aeb3
DM		 4584 || (!htab->is_vxworks
4585 && (h == htab->elf.hgot || h == htab->elf.hplt))))
22b75d0a
DM		 4586 sym->st_shndx = SHN_ABS;
4587
4588 return TRUE;
4589}
4590
4591/* Finish up the dynamic sections. */
4592
22b75d0a 4593static bfd_boolean
39817122
RS		 4594sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4595 bfd *dynobj, asection *sdyn,
4596 asection *splt ATTRIBUTE_UNUSED)
22b75d0a 4597{
910600e9 4598 struct _bfd_sparc_elf_link_hash_table *htab;
39817122
RS		 4599 const struct elf_backend_data *bed;
4600 bfd_byte *dyncon, *dynconend;
4601 size_t dynsize;
4602 int stt_regidx = -1;
4603 bfd_boolean abi_64_p;
22b75d0a 4604
910600e9 4605 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4606 BFD_ASSERT (htab != NULL);
39817122
RS		 4607 bed = get_elf_backend_data (output_bfd);
4608 dynsize = bed->s->sizeof_dyn;
4609 dynconend = sdyn->contents + sdyn->size;
4610 abi_64_p = ABI_64_P (output_bfd);
4611 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
22b75d0a
DM		 4612 {
4613 Elf_Internal_Dyn dyn;
22b75d0a
DM		 4614 bfd_boolean size;
4615
39817122 4616 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
22b75d0a 4617
64f52338 4618 if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
22b75d0a 4619 {
910600e9
RS		 4620 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4621 not to the start of the PLT. */
72fbc6e5 4622 if (htab->elf.sgotplt)
910600e9 4623 {
72fbc6e5
DM		 4624 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4625 + htab->elf.sgotplt->output_offset);
39817122 4626 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
910600e9
RS		 4627 }
4628 }
7a2b07ff
NS		 4629 else if (htab->is_vxworks
4630 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4631 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
39817122
RS		 4632 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4633 {
4634 if (stt_regidx == -1)
4635 {
4636 stt_regidx =
4637 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4638 if (stt_regidx == -1)
4639 return FALSE;
4640 }
4641 dyn.d_un.d_val = stt_regidx++;
4642 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4643 }
910600e9
RS		 4644 else
4645 {
ce558b89
AM		 4646 asection *s;
4647
910600e9
RS		 4648 switch (dyn.d_tag)
4649 {
ce558b89
AM		 4650 case DT_PLTGOT:
4651 s = htab->elf.splt;
4652 size = FALSE;
4653 break;
4654 case DT_PLTRELSZ:
4655 s = htab->elf.srelplt;
4656 size = TRUE;
4657 break;
4658 case DT_JMPREL:
4659 s = htab->elf.srelplt;
4660 size = FALSE;
4661 break;
4662 default:
4663 continue;
910600e9 4664 }
22b75d0a 4665
ce558b89
AM		 4666 if (s == NULL)
4667 dyn.d_un.d_val = 0;
4668 else
22b75d0a 4669 {
ce558b89
AM		 4670 if (!size)
4671 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
22b75d0a 4672 else
ce558b89 4673 dyn.d_un.d_val = s->size;
22b75d0a 4674 }
ce558b89 4675 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
22b75d0a
DM		 4676 }
4677 }
4678 return TRUE;
4679}
4680
910600e9
RS		 4681/* Install the first PLT entry in a VxWorks executable and make sure that
4682 .rela.plt.unloaded relocations have the correct symbol indexes. */
4683
4684static void
4685sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4686{
4687 struct _bfd_sparc_elf_link_hash_table *htab;
4688 Elf_Internal_Rela rela;
4689 bfd_vma got_base;
4690 bfd_byte *loc;
4691
4692 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4693 BFD_ASSERT (htab != NULL);
910600e9
RS		 4694
4695 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4696 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4697 + htab->elf.hgot->root.u.def.section->output_offset
4698 + htab->elf.hgot->root.u.def.value);
4699
4700 /* Install the initial PLT entry. */
4701 bfd_put_32 (output_bfd,
4702 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
72fbc6e5 4703 htab->elf.splt->contents);
910600e9
RS		 4704 bfd_put_32 (output_bfd,
4705 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
72fbc6e5 4706 htab->elf.splt->contents + 4);
910600e9
RS		 4707 bfd_put_32 (output_bfd,
4708 sparc_vxworks_exec_plt0_entry[2],
72fbc6e5 4709 htab->elf.splt->contents + 8);
910600e9
RS		 4710 bfd_put_32 (output_bfd,
4711 sparc_vxworks_exec_plt0_entry[3],
72fbc6e5 4712 htab->elf.splt->contents + 12);
910600e9
RS		 4713 bfd_put_32 (output_bfd,
4714 sparc_vxworks_exec_plt0_entry[4],
72fbc6e5 4715 htab->elf.splt->contents + 16);
910600e9
RS		 4716
4717 loc = htab->srelplt2->contents;
4718
4719 /* Add an unloaded relocation for the initial entry's "sethi". */
72fbc6e5
DM		 4720 rela.r_offset = (htab->elf.splt->output_section->vma
4721 + htab->elf.splt->output_offset);
910600e9
RS		 4722 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4723 rela.r_addend = 8;
4724 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4725 loc += sizeof (Elf32_External_Rela);
4726
4727 /* Likewise the following "or". */
4728 rela.r_offset += 4;
4729 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4730 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4731 loc += sizeof (Elf32_External_Rela);
4732
4733 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4734 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4735 in which symbols were output. */
4736 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4737 {
4738 Elf_Internal_Rela rel;
4739
4740 /* The entry's initial "sethi" (against _G_O_T_). */
4741 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4742 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4743 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4744 loc += sizeof (Elf32_External_Rela);
4745
4746 /* The following "or" (also against _G_O_T_). */
4747 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4748 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4749 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4750 loc += sizeof (Elf32_External_Rela);
4751
4752 /* The .got.plt entry (against _P_L_T_). */
4753 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4754 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4755 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4756 loc += sizeof (Elf32_External_Rela);
4757 }
4758}
4759
4760/* Install the first PLT entry in a VxWorks shared object. */
4761
4762static void
4763sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4764{
4765 struct _bfd_sparc_elf_link_hash_table *htab;
4766 unsigned int i;
4767
4768 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4769 BFD_ASSERT (htab != NULL);
4770
910600e9
RS		 4771 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4772 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
72fbc6e5 4773 htab->elf.splt->contents + i * 4);
910600e9
RS		 4774}
4775
d0c9aeb3
DM		 4776/* Finish up local dynamic symbol handling. We set the contents of
4777 various dynamic sections here. */
4778
4779static bfd_boolean
4780finish_local_dynamic_symbol (void **slot, void *inf)
4781{
4782 struct elf_link_hash_entry *h
4783 = (struct elf_link_hash_entry *) *slot;
4784 struct bfd_link_info *info
68ffbac6 4785 = (struct bfd_link_info *) inf;
d0c9aeb3
DM		 4786
4787 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4788 h, NULL);
4789}
4790
bb1dd176
QZ		 4791/* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4792 here since undefined weak symbol may not be dynamic and may not be
4793 called for _bfd_sparc_elf_finish_dynamic_symbol. */
4794
4795static bfd_boolean
4796pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
4797 void *inf)
4798{
4799 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4800 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4801
4802 if (h->root.type != bfd_link_hash_undefweak
4803 || h->dynindx != -1)
4804 return TRUE;
4805
4806 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4807 h, NULL);
4808}
4809
22b75d0a
DM		 4810bfd_boolean
4811_bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4812{
4813 bfd *dynobj;
4814 asection *sdyn;
4815 struct _bfd_sparc_elf_link_hash_table *htab;
4816
4817 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4818 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 4819 dynobj = htab->elf.dynobj;
4820
3d4d4302 4821 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
22b75d0a
DM		 4822
4823 if (elf_hash_table (info)->dynamic_sections_created)
4824 {
4825 asection *splt;
22b75d0a 4826
3d4d4302 4827 splt = htab->elf.splt;
22b75d0a
DM		 4828 BFD_ASSERT (splt != NULL && sdyn != NULL);
4829
39817122
RS		 4830 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4831 return FALSE;
22b75d0a
DM		 4832
4833 /* Initialize the contents of the .plt section. */
4834 if (splt->size > 0)
4835 {
910600e9
RS		 4836 if (htab->is_vxworks)
4837 {
0e1862bb 4838 if (bfd_link_pic (info))
910600e9
RS		 4839 sparc_vxworks_finish_shared_plt (output_bfd, info);
4840 else
4841 sparc_vxworks_finish_exec_plt (output_bfd, info);
4842 }
22b75d0a
DM		 4843 else
4844 {
910600e9
RS		 4845 memset (splt->contents, 0, htab->plt_header_size);
4846 if (!ABI_64_P (output_bfd))
4847 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4848 splt->contents + splt->size - 4);
22b75d0a
DM		 4849 }
4850 }
4851
387f8054
MR		 4852 if (elf_section_data (splt->output_section) != NULL)
4853 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4854 = ((htab->is_vxworks || !ABI_64_P (output_bfd))
4855 ? 0 : htab->plt_entry_size);
22b75d0a
DM		 4856 }
4857
4858 /* Set the first entry in the global offset table to the address of
4859 the dynamic section. */
72fbc6e5 4860 if (htab->elf.sgot && htab->elf.sgot->size > 0)
22b75d0a
DM		 4861 {
4862 bfd_vma val = (sdyn ?
4863 sdyn->output_section->vma + sdyn->output_offset :
4864 0);
4865
72fbc6e5 4866 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
22b75d0a
DM		 4867 }
4868
72fbc6e5
DM		 4869 if (htab->elf.sgot)
4870 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
22b75d0a
DM		 4871 SPARC_ELF_WORD_BYTES (htab);
4872
d0c9aeb3
DM		 4873 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4874 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4875
bb1dd176
QZ		 4876 /* Fill PLT entries for undefined weak symbols in PIE. */
4877 if (bfd_link_pie (info))
4878 bfd_hash_traverse (&info->hash->table,
4879 pie_finish_undefweak_symbol,
4880 info);
22b75d0a
DM		 4881 return TRUE;
4882}
4883
4884\f
4885/* Set the right machine number for a SPARC ELF file. */
4886
4887bfd_boolean
4888_bfd_sparc_elf_object_p (bfd *abfd)
4889{
4f26fb3a
JM		 4890 obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
4891 obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
4892 obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
4893
4894 unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
4895 unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
4896 | ELF_SPARC_HWCAP_VIS3
4897 | ELF_SPARC_HWCAP_HPC);
4898 unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
4899 | ELF_SPARC_HWCAP_DES
4900 | ELF_SPARC_HWCAP_KASUMI
4901 | ELF_SPARC_HWCAP_CAMELLIA
4902 | ELF_SPARC_HWCAP_MD5
4903 | ELF_SPARC_HWCAP_SHA1
4904 | ELF_SPARC_HWCAP_SHA256
4905 | ELF_SPARC_HWCAP_SHA512
4906 | ELF_SPARC_HWCAP_MPMUL
4907 | ELF_SPARC_HWCAP_MONT
4908 | ELF_SPARC_HWCAP_CRC32C
4909 | ELF_SPARC_HWCAP_CBCOND
4910 | ELF_SPARC_HWCAP_PAUSE);
4911 unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
4912 | ELF_SPARC_HWCAP_IMA);
4913 unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
4914 | ELF_SPARC_HWCAP2_MWAIT
4915 | ELF_SPARC_HWCAP2_XMPMUL
4916 | ELF_SPARC_HWCAP2_XMONT);
64517994
JM		 4917 unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6
4918 | ELF_SPARC_HWCAP2_ONADDSUB
4919 | ELF_SPARC_HWCAP2_ONMUL
4920 | ELF_SPARC_HWCAP2_ONDIV
4921 | ELF_SPARC_HWCAP2_DICTUNP
4922 | ELF_SPARC_HWCAP2_FPCMPSHL
4923 | ELF_SPARC_HWCAP2_RLE
4924 | ELF_SPARC_HWCAP2_SHA3);
4f26fb3a 4925
22b75d0a
DM		 4926 if (ABI_64_P (abfd))
4927 {
4928 unsigned long mach = bfd_mach_sparc_v9;
4929
64517994
JM		 4930 if (hwcaps2->i & m8_hwcaps2_mask)
4931 mach = bfd_mach_sparc_v9m8;
4932 else if (hwcaps2->i & v9m_hwcaps2_mask)
4f26fb3a
JM		 4933 mach = bfd_mach_sparc_v9m;
4934 else if (hwcaps->i & v9v_hwcaps_mask)
4935 mach = bfd_mach_sparc_v9v;
4936 else if (hwcaps->i & v9e_hwcaps_mask)
4937 mach = bfd_mach_sparc_v9e;
4938 else if (hwcaps->i & v9d_hwcaps_mask)
4939 mach = bfd_mach_sparc_v9d;
4940 else if (hwcaps->i & v9c_hwcaps_mask)
4941 mach = bfd_mach_sparc_v9c;
4942 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
22b75d0a
DM		 4943 mach = bfd_mach_sparc_v9b;
4944 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4945 mach = bfd_mach_sparc_v9a;
4946 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4947 }
4948 else
4949 {
4950 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4951 {
64517994
JM		 4952 if (hwcaps2->i & m8_hwcaps2_mask)
4953 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4954 bfd_mach_sparc_v8plusm8);
4955 else if (hwcaps2->i & v9m_hwcaps2_mask)
4f26fb3a
JM		 4956 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4957 bfd_mach_sparc_v8plusm);
4958 else if (hwcaps->i & v9v_hwcaps_mask)
4959 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4960 bfd_mach_sparc_v8plusv);
4961 else if (hwcaps->i & v9e_hwcaps_mask)
4962 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4963 bfd_mach_sparc_v8pluse);
4964 else if (hwcaps->i & v9d_hwcaps_mask)
4965 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4966 bfd_mach_sparc_v8plusd);
4967 else if (hwcaps->i & v9c_hwcaps_mask)
4968 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4969 bfd_mach_sparc_v8plusc);
4970 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
22b75d0a
DM		 4971 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4972 bfd_mach_sparc_v8plusb);
4973 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4974 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4975 bfd_mach_sparc_v8plusa);
4976 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4977 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4978 bfd_mach_sparc_v8plus);
4979 else
4980 return FALSE;
4981 }
4982 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4983 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4984 bfd_mach_sparc_sparclite_le);
4985 else
4986 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4987 }
4988}
4989
4990/* Return address for Ith PLT stub in section PLT, for relocation REL
4991 or (bfd_vma) -1 if it should not be included. */
4992
4993bfd_vma
4994_bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
4995{
4996 if (ABI_64_P (plt->owner))
4997 {
4998 bfd_vma j;
4999
5000 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
5001 if (i < PLT64_LARGE_THRESHOLD)
5002 return plt->vma + i * PLT64_ENTRY_SIZE;
5003
5004 j = (i - PLT64_LARGE_THRESHOLD) % 160;
5005 i -= j;
5006 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
5007 }
5008 else
5009 return rel->address;
5010}
9e8c70f9
DM		 5011
5012/* Merge backend specific data from an object file to the output
5013 object file when linking. */
5014
5015bfd_boolean
50e03d47 5016_bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
9e8c70f9 5017{
50e03d47 5018 bfd *obfd = info->output_bfd;
9e8c70f9
DM		 5019 obj_attribute *in_attr, *in_attrs;
5020 obj_attribute *out_attr, *out_attrs;
5021
5022 if (!elf_known_obj_attributes_proc (obfd)[0].i)
5023 {
5024 /* This is the first object. Copy the attributes. */
5025 _bfd_elf_copy_obj_attributes (ibfd, obfd);
5026
5027 /* Use the Tag_null value to indicate the attributes have been
5028 initialized. */
5029 elf_known_obj_attributes_proc (obfd)[0].i = 1;
5030
5031 return TRUE;
5032 }
5033
5034 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
5035 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
5036
5037 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
5038 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
1b786873 5039
3d68f91c
JM		 5040 out_attr->i |= in_attr->i;
5041 out_attr->type = 1;
9e8c70f9 5042
3d68f91c
JM		 5043 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
5044 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
1b786873 5045
9e8c70f9 5046 out_attr->i |= in_attr->i;
209be8d2 5047 out_attr->type = 1;
9e8c70f9
DM		 5048
5049 /* Merge Tag_compatibility attributes and any common GNU ones. */
50e03d47 5050 _bfd_elf_merge_object_attributes (ibfd, info);
9e8c70f9
DM		 5051
5052 return TRUE;
5053}
GDB Binutils - Deliverables
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