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1 /* SPARC-specific support for ELF
2 Copyright (C) 2005-2018 Free Software Foundation, Inc.
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
8 the Free Software Foundation; either version 3 of the License, or
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
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21
22 /* This file handles functionality common to the different SPARC ABI's. */
23
24 #include "sysdep.h"
25 #include "bfd.h"
26 #include "bfdlink.h"
27 #include "libbfd.h"
28 #include "libiberty.h"
29 #include "elf-bfd.h"
30 #include "elf/sparc.h"
31 #include "opcode/sparc.h"
32 #include "elfxx-sparc.h"
33 #include "elf-vxworks.h"
34 #include "objalloc.h"
35 #include "hashtab.h"
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
53 static bfd_reloc_status_type
54 init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
55 void * data, asection *input_section, bfd *output_bfd,
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
95 static bfd_reloc_status_type
96 sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
97 arelent *reloc_entry ATTRIBUTE_UNUSED,
98 asymbol *symbol ATTRIBUTE_UNUSED,
99 void * data ATTRIBUTE_UNUSED,
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
109 static bfd_reloc_status_type
110 sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
111 void * data, asection *input_section, bfd *output_bfd,
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
134 /* Handle the WDISP10 reloc. */
135
136 static bfd_reloc_status_type
137 sparc_elf_wdisp10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
138 void * data, asection *input_section, bfd *output_bfd,
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
162 /* Handle the HIX22 reloc. */
163
164 static bfd_reloc_status_type
165 sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
166 void * data, asection *input_section, bfd *output_bfd,
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
190 static bfd_reloc_status_type
191 sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
192 void * data, asection *input_section, bfd *output_bfd,
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
210 static reloc_howto_type _bfd_sparc_elf_howto_table[] =
211 {
212 HOWTO(R_SPARC_NONE, 0,3, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
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),
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),
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),
301 };
302 static 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);
304 static 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);
306 static 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);
308 static 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);
310 static 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
313 reloc_howto_type *
314 _bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
315 bfd_reloc_code_real_type code)
316 {
317 /* We explicitly handle each relocation type in the switch
318 instead of using a lookup table for efficiency. */
319 switch (code)
320 {
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
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
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
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:
586 break;
587 }
588 bfd_set_error (bfd_error_bad_value);
589 return NULL;
590 }
591
592 reloc_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
616 reloc_howto_type *
617 _bfd_sparc_elf_info_to_howto_ptr (bfd *abfd, unsigned int r_type)
618 {
619 switch (r_type)
620 {
621 case R_SPARC_JMP_IREL:
622 return &sparc_jmp_irel_howto;
623
624 case R_SPARC_IRELATIVE:
625 return &sparc_irelative_howto;
626
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:
637 if (r_type >= (unsigned int) R_SPARC_max_std)
638 {
639 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
640 abfd, r_type);
641 r_type = R_SPARC_NONE;
642 }
643 return &_bfd_sparc_elf_howto_table[r_type];
644 }
645 }
646
647 /* Both 32-bit and 64-bit sparc encode this in an identical manner,
648 so just take advantage of that. */
649 #define SPARC_ELF_R_TYPE(r_info) \
650 ((r_info) & 0xff)
651
652 void
653 _bfd_sparc_elf_info_to_howto (bfd *abfd, arelent *cache_ptr,
654 Elf_Internal_Rela *dst)
655 {
656 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
657
658 cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (abfd, r_type);
659 }
660 \f
661
662 /* The nop opcode we use. */
663 #define SPARC_NOP 0x01000000
664
665 #define SPARC_INSN_BYTES 4
666
667 /* Is an undefined weak symbol resolved to 0 ?
668 Reference to an undefined weak symbol is resolved to 0 when
669 building an executable if it isn't dynamic and
670 1. Has non-GOT/non-PLT relocations in text section.
671 Or
672 2. Has no GOT/PLT relocation. */
673 #define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
674 ((EH)->elf.root.type == bfd_link_hash_undefweak \
675 && bfd_link_executable (INFO) \
676 && (_bfd_sparc_elf_hash_table (INFO)->interp == NULL \
677 || !(INFO)->dynamic_undefined_weak \
678 || (EH)->has_non_got_reloc \
679 || !(EH)->has_got_reloc))
680
681 /* SPARC ELF linker hash entry. */
682
683 struct _bfd_sparc_elf_link_hash_entry
684 {
685 struct elf_link_hash_entry elf;
686
687 /* Track dynamic relocs copied for this symbol. */
688 struct elf_dyn_relocs *dyn_relocs;
689
690 #define GOT_UNKNOWN 0
691 #define GOT_NORMAL 1
692 #define GOT_TLS_GD 2
693 #define GOT_TLS_IE 3
694 unsigned char tls_type;
695
696 /* Symbol has GOT or PLT relocations. */
697 unsigned int has_got_reloc : 1;
698
699 /* Symbol has non-GOT/non-PLT relocations in text sections. */
700 unsigned int has_non_got_reloc : 1;
701
702 };
703
704 #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
705
706 struct _bfd_sparc_elf_obj_tdata
707 {
708 struct elf_obj_tdata root;
709
710 /* tls_type for each local got entry. */
711 char *local_got_tls_type;
712
713 /* TRUE if TLS GD relocs has been seen for this object. */
714 bfd_boolean has_tlsgd;
715 };
716
717 #define _bfd_sparc_elf_tdata(abfd) \
718 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
719
720 #define _bfd_sparc_elf_local_got_tls_type(abfd) \
721 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
722
723 #define is_sparc_elf(bfd) \
724 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
725 && elf_tdata (bfd) != NULL \
726 && elf_object_id (bfd) == SPARC_ELF_DATA)
727
728 bfd_boolean
729 _bfd_sparc_elf_mkobject (bfd *abfd)
730 {
731 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
732 SPARC_ELF_DATA);
733 }
734
735 static void
736 sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
737 {
738 bfd_put_32 (abfd, val, ptr);
739 }
740
741 static void
742 sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
743 {
744 bfd_put_64 (abfd, val, ptr);
745 }
746
747 static void
748 sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
749 {
750 const struct elf_backend_data *bed;
751 bfd_byte *loc;
752
753 bed = get_elf_backend_data (abfd);
754 BFD_ASSERT (s->reloc_count * bed->s->sizeof_rela < s->size);
755 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
756 bed->s->swap_reloca_out (abfd, rel, loc);
757 }
758
759 static bfd_vma
760 sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
761 bfd_vma rel_index ATTRIBUTE_UNUSED,
762 bfd_vma type ATTRIBUTE_UNUSED)
763 {
764 return ELF64_R_INFO (rel_index,
765 (in_rel ?
766 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
767 type) : type));
768 }
769
770 static bfd_vma
771 sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
772 bfd_vma rel_index, bfd_vma type)
773 {
774 return ELF32_R_INFO (rel_index, type);
775 }
776
777 static bfd_vma
778 sparc_elf_r_symndx_64 (bfd_vma r_info)
779 {
780 bfd_vma r_symndx = ELF32_R_SYM (r_info);
781 return (r_symndx >> 24);
782 }
783
784 static bfd_vma
785 sparc_elf_r_symndx_32 (bfd_vma r_info)
786 {
787 return ELF32_R_SYM (r_info);
788 }
789
790 /* PLT/GOT stuff */
791
792 #define PLT32_ENTRY_SIZE 12
793 #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
794
795 /* The first four entries in a 32-bit procedure linkage table are reserved,
796 and the initial contents are unimportant (we zero them out).
797 Subsequent entries look like this. See the SVR4 ABI SPARC
798 supplement to see how this works. */
799
800 /* sethi %hi(.-.plt0),%g1. We fill in the address later. */
801 #define PLT32_ENTRY_WORD0 0x03000000
802 /* b,a .plt0. We fill in the offset later. */
803 #define PLT32_ENTRY_WORD1 0x30800000
804 /* nop. */
805 #define PLT32_ENTRY_WORD2 SPARC_NOP
806
807 static int
808 sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
809 bfd_vma max ATTRIBUTE_UNUSED,
810 bfd_vma *r_offset)
811 {
812 bfd_put_32 (output_bfd,
813 PLT32_ENTRY_WORD0 + offset,
814 splt->contents + offset);
815 bfd_put_32 (output_bfd,
816 (PLT32_ENTRY_WORD1
817 + (((- (offset + 4)) >> 2) & 0x3fffff)),
818 splt->contents + offset + 4);
819 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
820 splt->contents + offset + 8);
821
822 *r_offset = offset;
823
824 return offset / PLT32_ENTRY_SIZE - 4;
825 }
826
827 /* Both the headers and the entries are icache aligned. */
828 #define PLT64_ENTRY_SIZE 32
829 #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
830 #define PLT64_LARGE_THRESHOLD 32768
831
832 static int
833 sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
834 bfd_vma max, bfd_vma *r_offset)
835 {
836 unsigned char *entry = splt->contents + offset;
837 const unsigned int nop = SPARC_NOP;
838 int plt_index;
839
840 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
841 {
842 unsigned int sethi, ba;
843
844 *r_offset = offset;
845
846 plt_index = (offset / PLT64_ENTRY_SIZE);
847
848 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
849 ba = 0x30680000
850 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
851
852 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
853 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
854 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
855 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
856 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
857 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
858 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
859 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
860 }
861 else
862 {
863 unsigned char *ptr;
864 unsigned int ldx;
865 int block, last_block, ofs, last_ofs, chunks_this_block;
866 const int insn_chunk_size = (6 * 4);
867 const int ptr_chunk_size = (1 * 8);
868 const int entries_per_block = 160;
869 const int block_size = entries_per_block * (insn_chunk_size
870 + ptr_chunk_size);
871
872 /* Entries 32768 and higher are grouped into blocks of 160.
873 The blocks are further subdivided into 160 sequences of
874 6 instructions and 160 pointers. If a block does not require
875 the full 160 entries, let's say it requires N, then there
876 will be N sequences of 6 instructions and N pointers. */
877
878 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
879 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
880
881 block = offset / block_size;
882 last_block = max / block_size;
883 if (block != last_block)
884 {
885 chunks_this_block = 160;
886 }
887 else
888 {
889 last_ofs = max % block_size;
890 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
891 }
892
893 ofs = offset % block_size;
894
895 plt_index = (PLT64_LARGE_THRESHOLD +
896 (block * 160) +
897 (ofs / insn_chunk_size));
898
899 ptr = splt->contents
900 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
901 + (block * block_size)
902 + (chunks_this_block * insn_chunk_size)
903 + (ofs / insn_chunk_size) * ptr_chunk_size;
904
905 *r_offset = (bfd_vma) (ptr - splt->contents);
906
907 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
908
909 /* mov %o7,%g5
910 call .+8
911 nop
912 ldx [%o7+P],%g1
913 jmpl %o7+%g1,%g1
914 mov %g5,%o7 */
915 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
916 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
917 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
918 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
919 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
920 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
921
922 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
923 }
924
925 return plt_index - 4;
926 }
927
928 /* The format of the first PLT entry in a VxWorks executable. */
929 static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
930 {
931 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
932 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
933 0xc4008000, /* ld [ %g2 ], %g2 */
934 0x81c08000, /* jmp %g2 */
935 0x01000000 /* nop */
936 };
937
938 /* The format of subsequent PLT entries. */
939 static const bfd_vma sparc_vxworks_exec_plt_entry[] =
940 {
941 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
942 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
943 0xc2004000, /* ld [ %g1 ], %g1 */
944 0x81c04000, /* jmp %g1 */
945 0x01000000, /* nop */
946 0x03000000, /* sethi %hi(f@pltindex), %g1 */
947 0x10800000, /* b _PLT_resolve */
948 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
949 };
950
951 /* The format of the first PLT entry in a VxWorks shared object. */
952 static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
953 {
954 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
955 0x81c08000, /* jmp %g2 */
956 0x01000000 /* nop */
957 };
958
959 /* The format of subsequent PLT entries. */
960 static const bfd_vma sparc_vxworks_shared_plt_entry[] =
961 {
962 0x03000000, /* sethi %hi(f@got), %g1 */
963 0x82106000, /* or %g1, %lo(f@got), %g1 */
964 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
965 0x81c04000, /* jmp %g1 */
966 0x01000000, /* nop */
967 0x03000000, /* sethi %hi(f@pltindex), %g1 */
968 0x10800000, /* b _PLT_resolve */
969 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
970 };
971
972 #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
973 htab->put_word(bfd, val, ptr)
974
975 #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
976 htab->r_info(in_rel, index, type)
977
978 #define SPARC_ELF_R_SYMNDX(htab, r_info) \
979 htab->r_symndx(r_info)
980
981 #define SPARC_ELF_WORD_BYTES(htab) \
982 htab->bytes_per_word
983
984 #define SPARC_ELF_RELA_BYTES(htab) \
985 htab->bytes_per_rela
986
987 #define SPARC_ELF_DTPOFF_RELOC(htab) \
988 htab->dtpoff_reloc
989
990 #define SPARC_ELF_DTPMOD_RELOC(htab) \
991 htab->dtpmod_reloc
992
993 #define SPARC_ELF_TPOFF_RELOC(htab) \
994 htab->tpoff_reloc
995
996 #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
997 htab->build_plt_entry (obfd, splt, off, max, r_off)
998
999 /* Create an entry in an SPARC ELF linker hash table. */
1000
1001 static struct bfd_hash_entry *
1002 link_hash_newfunc (struct bfd_hash_entry *entry,
1003 struct bfd_hash_table *table, const char *string)
1004 {
1005 /* Allocate the structure if it has not already been allocated by a
1006 subclass. */
1007 if (entry == NULL)
1008 {
1009 entry = bfd_hash_allocate (table,
1010 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1011 if (entry == NULL)
1012 return entry;
1013 }
1014
1015 /* Call the allocation method of the superclass. */
1016 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1017 if (entry != NULL)
1018 {
1019 struct _bfd_sparc_elf_link_hash_entry *eh;
1020
1021 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
1022 eh->dyn_relocs = NULL;
1023 eh->tls_type = GOT_UNKNOWN;
1024 eh->has_got_reloc = 0;
1025 eh->has_non_got_reloc = 0;
1026 }
1027
1028 return entry;
1029 }
1030
1031 /* The name of the dynamic interpreter. This is put in the .interp
1032 section. */
1033
1034 #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1035 #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1036
1037 /* Compute a hash of a local hash entry. We use elf_link_hash_entry
1038 for local symbol so that we can handle local STT_GNU_IFUNC symbols
1039 as global symbol. We reuse indx and dynstr_index for local symbol
1040 hash since they aren't used by global symbols in this backend. */
1041
1042 static hashval_t
1043 elf_sparc_local_htab_hash (const void *ptr)
1044 {
1045 struct elf_link_hash_entry *h
1046 = (struct elf_link_hash_entry *) ptr;
1047 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1048 }
1049
1050 /* Compare local hash entries. */
1051
1052 static int
1053 elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1054 {
1055 struct elf_link_hash_entry *h1
1056 = (struct elf_link_hash_entry *) ptr1;
1057 struct elf_link_hash_entry *h2
1058 = (struct elf_link_hash_entry *) ptr2;
1059
1060 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1061 }
1062
1063 /* Find and/or create a hash entry for local symbol. */
1064
1065 static struct elf_link_hash_entry *
1066 elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1067 bfd *abfd, const Elf_Internal_Rela *rel,
1068 bfd_boolean create)
1069 {
1070 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1071 asection *sec = abfd->sections;
1072 unsigned long r_symndx;
1073 hashval_t h;
1074 void **slot;
1075
1076 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1077 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1078
1079 e.elf.indx = sec->id;
1080 e.elf.dynstr_index = r_symndx;
1081 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1082 create ? INSERT : NO_INSERT);
1083
1084 if (!slot)
1085 return NULL;
1086
1087 if (*slot)
1088 {
1089 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1090 return &ret->elf;
1091 }
1092
1093 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1094 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1095 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1096 if (ret)
1097 {
1098 memset (ret, 0, sizeof (*ret));
1099 ret->elf.indx = sec->id;
1100 ret->elf.dynstr_index = r_symndx;
1101 ret->elf.dynindx = -1;
1102 ret->elf.plt.offset = (bfd_vma) -1;
1103 ret->elf.got.offset = (bfd_vma) -1;
1104 *slot = ret;
1105 }
1106 return &ret->elf;
1107 }
1108
1109 /* Destroy a SPARC ELF linker hash table. */
1110
1111 static void
1112 _bfd_sparc_elf_link_hash_table_free (bfd *obfd)
1113 {
1114 struct _bfd_sparc_elf_link_hash_table *htab
1115 = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
1116
1117 if (htab->loc_hash_table)
1118 htab_delete (htab->loc_hash_table);
1119 if (htab->loc_hash_memory)
1120 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
1121 _bfd_elf_link_hash_table_free (obfd);
1122 }
1123
1124 /* Create a SPARC ELF linker hash table. */
1125
1126 struct bfd_link_hash_table *
1127 _bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1128 {
1129 struct _bfd_sparc_elf_link_hash_table *ret;
1130 bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1131
1132 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1133 if (ret == NULL)
1134 return NULL;
1135
1136 if (ABI_64_P (abfd))
1137 {
1138 ret->put_word = sparc_put_word_64;
1139 ret->r_info = sparc_elf_r_info_64;
1140 ret->r_symndx = sparc_elf_r_symndx_64;
1141 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1142 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1143 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1144 ret->word_align_power = 3;
1145 ret->align_power_max = 4;
1146 ret->bytes_per_word = 8;
1147 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1148 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1149 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
1150
1151 ret->build_plt_entry = sparc64_plt_entry_build;
1152 ret->plt_header_size = PLT64_HEADER_SIZE;
1153 ret->plt_entry_size = PLT64_ENTRY_SIZE;
1154 }
1155 else
1156 {
1157 ret->put_word = sparc_put_word_32;
1158 ret->r_info = sparc_elf_r_info_32;
1159 ret->r_symndx = sparc_elf_r_symndx_32;
1160 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1161 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1162 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1163 ret->word_align_power = 2;
1164 ret->align_power_max = 3;
1165 ret->bytes_per_word = 4;
1166 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1167 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1168 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
1169
1170 ret->build_plt_entry = sparc32_plt_entry_build;
1171 ret->plt_header_size = PLT32_HEADER_SIZE;
1172 ret->plt_entry_size = PLT32_ENTRY_SIZE;
1173 }
1174
1175 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1176 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1177 SPARC_ELF_DATA))
1178 {
1179 free (ret);
1180 return NULL;
1181 }
1182
1183 ret->loc_hash_table = htab_try_create (1024,
1184 elf_sparc_local_htab_hash,
1185 elf_sparc_local_htab_eq,
1186 NULL);
1187 ret->loc_hash_memory = objalloc_create ();
1188 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1189 {
1190 _bfd_sparc_elf_link_hash_table_free (abfd);
1191 return NULL;
1192 }
1193 ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
1194
1195 return &ret->elf.root;
1196 }
1197
1198 /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1199 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1200 hash table. */
1201
1202 bfd_boolean
1203 _bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1204 struct bfd_link_info *info)
1205 {
1206 struct _bfd_sparc_elf_link_hash_table *htab;
1207
1208 htab = _bfd_sparc_elf_hash_table (info);
1209 BFD_ASSERT (htab != NULL);
1210
1211 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1212 return FALSE;
1213
1214 if (htab->is_vxworks)
1215 {
1216 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1217 return FALSE;
1218 if (bfd_link_pic (info))
1219 {
1220 htab->plt_header_size
1221 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1222 htab->plt_entry_size
1223 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1224 }
1225 else
1226 {
1227 htab->plt_header_size
1228 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1229 htab->plt_entry_size
1230 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1231 }
1232 }
1233
1234 if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1235 || (!bfd_link_pic (info) && !htab->elf.srelbss))
1236 abort ();
1237
1238 return TRUE;
1239 }
1240
1241 static bfd_boolean
1242 create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1243 {
1244 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1245 struct elf_link_hash_table *htab = elf_hash_table (info);
1246 flagword flags, pltflags;
1247 asection *s;
1248
1249 if (htab->irelifunc != NULL || htab->iplt != NULL)
1250 return TRUE;
1251
1252 flags = bed->dynamic_sec_flags;
1253 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1254
1255 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1256 if (s == NULL
1257 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1258 return FALSE;
1259 htab->iplt = s;
1260
1261 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1262 flags | SEC_READONLY);
1263 if (s == NULL
1264 || ! bfd_set_section_alignment (abfd, s,
1265 bed->s->log_file_align))
1266 return FALSE;
1267 htab->irelplt = s;
1268
1269 return TRUE;
1270 }
1271
1272 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1273
1274 void
1275 _bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
1276 struct elf_link_hash_entry *dir,
1277 struct elf_link_hash_entry *ind)
1278 {
1279 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1280
1281 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1282 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1283
1284 if (eind->dyn_relocs != NULL)
1285 {
1286 if (edir->dyn_relocs != NULL)
1287 {
1288 struct elf_dyn_relocs **pp;
1289 struct elf_dyn_relocs *p;
1290
1291 /* Add reloc counts against the indirect sym to the direct sym
1292 list. Merge any entries against the same section. */
1293 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1294 {
1295 struct elf_dyn_relocs *q;
1296
1297 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1298 if (q->sec == p->sec)
1299 {
1300 q->pc_count += p->pc_count;
1301 q->count += p->count;
1302 *pp = p->next;
1303 break;
1304 }
1305 if (q == NULL)
1306 pp = &p->next;
1307 }
1308 *pp = edir->dyn_relocs;
1309 }
1310
1311 edir->dyn_relocs = eind->dyn_relocs;
1312 eind->dyn_relocs = NULL;
1313 }
1314
1315 if (ind->root.type == bfd_link_hash_indirect && dir->got.refcount <= 0)
1316 {
1317 edir->tls_type = eind->tls_type;
1318 eind->tls_type = GOT_UNKNOWN;
1319 }
1320
1321 /* Copy has_got_reloc and has_non_got_reloc. */
1322 edir->has_got_reloc |= eind->has_got_reloc;
1323 edir->has_non_got_reloc |= eind->has_non_got_reloc;
1324
1325 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1326 }
1327
1328 static int
1329 sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1330 int r_type, int is_local)
1331 {
1332 if (! ABI_64_P (abfd)
1333 && r_type == R_SPARC_TLS_GD_HI22
1334 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1335 return R_SPARC_REV32;
1336
1337 if (!bfd_link_executable (info))
1338 return r_type;
1339
1340 switch (r_type)
1341 {
1342 case R_SPARC_TLS_GD_HI22:
1343 return is_local ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_IE_HI22;
1344 case R_SPARC_TLS_GD_LO10:
1345 return is_local ? R_SPARC_TLS_LE_LOX10 : R_SPARC_TLS_IE_LO10;
1346 case R_SPARC_TLS_LDM_HI22:
1347 return R_SPARC_TLS_LE_HIX22;
1348 case R_SPARC_TLS_LDM_LO10:
1349 return R_SPARC_TLS_LE_LOX10;
1350 case R_SPARC_TLS_IE_HI22:
1351 return is_local ? R_SPARC_TLS_LE_HIX22 : r_type;
1352 case R_SPARC_TLS_IE_LO10:
1353 return is_local ? R_SPARC_TLS_LE_LOX10 : r_type;
1354 }
1355
1356 return r_type;
1357 }
1358 \f
1359 /* Look through the relocs for a section during the first phase, and
1360 allocate space in the global offset table or procedure linkage
1361 table. */
1362
1363 bfd_boolean
1364 _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1365 asection *sec, const Elf_Internal_Rela *relocs)
1366 {
1367 struct _bfd_sparc_elf_link_hash_table *htab;
1368 Elf_Internal_Shdr *symtab_hdr;
1369 struct elf_link_hash_entry **sym_hashes;
1370 const Elf_Internal_Rela *rel;
1371 const Elf_Internal_Rela *rel_end;
1372 asection *sreloc;
1373 int num_relocs;
1374 bfd_boolean checked_tlsgd = FALSE;
1375
1376 if (bfd_link_relocatable (info))
1377 return TRUE;
1378
1379 htab = _bfd_sparc_elf_hash_table (info);
1380 BFD_ASSERT (htab != NULL);
1381 symtab_hdr = &elf_symtab_hdr (abfd);
1382 sym_hashes = elf_sym_hashes (abfd);
1383
1384 sreloc = NULL;
1385
1386 if (ABI_64_P (abfd))
1387 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
1388 else
1389 num_relocs = sec->reloc_count;
1390
1391 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1392
1393 if (htab->elf.dynobj == NULL)
1394 htab->elf.dynobj = abfd;
1395 if (!create_ifunc_sections (htab->elf.dynobj, info))
1396 return FALSE;
1397
1398 rel_end = relocs + num_relocs;
1399 for (rel = relocs; rel < rel_end; rel++)
1400 {
1401 unsigned int r_type;
1402 unsigned int r_symndx;
1403 struct elf_link_hash_entry *h;
1404 struct _bfd_sparc_elf_link_hash_entry *eh;
1405 Elf_Internal_Sym *isym;
1406
1407 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1408 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1409
1410 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1411 {
1412 /* xgettext:c-format */
1413 _bfd_error_handler (_("%pB: bad symbol index: %d"), abfd, r_symndx);
1414 return FALSE;
1415 }
1416
1417 isym = NULL;
1418 if (r_symndx < symtab_hdr->sh_info)
1419 {
1420 /* A local symbol. */
1421 isym = bfd_sym_from_r_symndx (&htab->sym_cache, abfd, r_symndx);
1422 if (isym == NULL)
1423 return FALSE;
1424
1425 /* Check relocation against local STT_GNU_IFUNC symbol. */
1426 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1427 {
1428 h = elf_sparc_get_local_sym_hash (htab, abfd, rel, TRUE);
1429 if (h == NULL)
1430 return FALSE;
1431
1432 /* Fake a STT_GNU_IFUNC symbol. */
1433 h->type = STT_GNU_IFUNC;
1434 h->def_regular = 1;
1435 h->ref_regular = 1;
1436 h->forced_local = 1;
1437 h->root.type = bfd_link_hash_defined;
1438 }
1439 else
1440 h = NULL;
1441 }
1442 else
1443 {
1444 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1445 while (h->root.type == bfd_link_hash_indirect
1446 || h->root.type == bfd_link_hash_warning)
1447 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1448 }
1449
1450 if (h && h->type == STT_GNU_IFUNC && h->def_regular)
1451 {
1452 h->ref_regular = 1;
1453 h->plt.refcount += 1;
1454 }
1455
1456 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1457 with R_SPARC_TLS_GD_HI22. */
1458 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1459 switch (r_type)
1460 {
1461 case R_SPARC_TLS_GD_HI22:
1462 {
1463 const Elf_Internal_Rela *relt;
1464
1465 for (relt = rel + 1; relt < rel_end; relt++)
1466 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1467 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1468 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1469 break;
1470 checked_tlsgd = TRUE;
1471 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1472 }
1473 break;
1474 case R_SPARC_TLS_GD_LO10:
1475 case R_SPARC_TLS_GD_ADD:
1476 case R_SPARC_TLS_GD_CALL:
1477 checked_tlsgd = TRUE;
1478 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1479 break;
1480 }
1481
1482 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
1483 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1484
1485 switch (r_type)
1486 {
1487 case R_SPARC_TLS_LDM_HI22:
1488 case R_SPARC_TLS_LDM_LO10:
1489 htab->tls_ldm_got.refcount += 1;
1490 if (eh != NULL)
1491 eh->has_got_reloc = 1;
1492 break;
1493
1494 case R_SPARC_TLS_LE_HIX22:
1495 case R_SPARC_TLS_LE_LOX10:
1496 if (!bfd_link_executable (info))
1497 goto r_sparc_plt32;
1498 break;
1499
1500 case R_SPARC_TLS_IE_HI22:
1501 case R_SPARC_TLS_IE_LO10:
1502 if (!bfd_link_executable (info))
1503 info->flags |= DF_STATIC_TLS;
1504 /* Fall through */
1505
1506 case R_SPARC_GOT10:
1507 case R_SPARC_GOT13:
1508 case R_SPARC_GOT22:
1509 case R_SPARC_GOTDATA_HIX22:
1510 case R_SPARC_GOTDATA_LOX10:
1511 case R_SPARC_GOTDATA_OP_HIX22:
1512 case R_SPARC_GOTDATA_OP_LOX10:
1513 case R_SPARC_TLS_GD_HI22:
1514 case R_SPARC_TLS_GD_LO10:
1515 /* This symbol requires a global offset table entry. */
1516 {
1517 int tls_type, old_tls_type;
1518
1519 switch (r_type)
1520 {
1521 case R_SPARC_TLS_GD_HI22:
1522 case R_SPARC_TLS_GD_LO10:
1523 tls_type = GOT_TLS_GD;
1524 break;
1525 case R_SPARC_TLS_IE_HI22:
1526 case R_SPARC_TLS_IE_LO10:
1527 tls_type = GOT_TLS_IE;
1528 break;
1529 default:
1530 tls_type = GOT_NORMAL;
1531 break;
1532 }
1533
1534 if (h != NULL)
1535 {
1536 h->got.refcount += 1;
1537 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1538 }
1539 else
1540 {
1541 bfd_signed_vma *local_got_refcounts;
1542
1543 /* This is a global offset table entry for a local symbol. */
1544 local_got_refcounts = elf_local_got_refcounts (abfd);
1545 if (local_got_refcounts == NULL)
1546 {
1547 bfd_size_type size;
1548
1549 size = symtab_hdr->sh_info;
1550 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1551 local_got_refcounts = ((bfd_signed_vma *)
1552 bfd_zalloc (abfd, size));
1553 if (local_got_refcounts == NULL)
1554 return FALSE;
1555 elf_local_got_refcounts (abfd) = local_got_refcounts;
1556 _bfd_sparc_elf_local_got_tls_type (abfd)
1557 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1558 }
1559
1560 if (r_type != R_SPARC_GOTDATA_OP_HIX22
1561 && r_type != R_SPARC_GOTDATA_OP_LOX10)
1562 local_got_refcounts[r_symndx] += 1;
1563
1564 old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1565 }
1566
1567 /* If a TLS symbol is accessed using IE at least once, there is no point
1568 in using the dynamic model for it. */
1569 if (old_tls_type != tls_type)
1570 {
1571 if (old_tls_type == GOT_UNKNOWN)
1572 ;
1573 else if (old_tls_type == GOT_TLS_GD && tls_type == GOT_TLS_IE)
1574 ;
1575 else if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1576 tls_type = old_tls_type;
1577 else
1578 {
1579 _bfd_error_handler
1580 /* xgettext:c-format */
1581 (_("%pB: `%s' accessed both as normal and thread local symbol"),
1582 abfd, h ? h->root.root.string : "<local>");
1583 return FALSE;
1584 }
1585
1586 if (h != NULL)
1587 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1588 else
1589 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1590 }
1591 }
1592
1593 if (!htab->elf.sgot
1594 && !_bfd_elf_create_got_section (htab->elf.dynobj, info))
1595 return FALSE;
1596
1597 if (eh != NULL)
1598 eh->has_got_reloc = 1;
1599 break;
1600
1601 case R_SPARC_TLS_GD_CALL:
1602 case R_SPARC_TLS_LDM_CALL:
1603 if (bfd_link_executable (info))
1604 break;
1605
1606 /* Essentially R_SPARC_WPLT30 relocs against __tls_get_addr. */
1607 h = (struct elf_link_hash_entry *)
1608 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
1609 FALSE, TRUE);
1610 BFD_ASSERT (h != NULL);
1611 /* Fall through */
1612
1613 case R_SPARC_WPLT30:
1614 case R_SPARC_PLT32:
1615 case R_SPARC_PLT64:
1616 case R_SPARC_HIPLT22:
1617 case R_SPARC_LOPLT10:
1618 case R_SPARC_PCPLT32:
1619 case R_SPARC_PCPLT22:
1620 case R_SPARC_PCPLT10:
1621 /* This symbol requires a procedure linkage table entry.
1622 We actually build the entry in adjust_dynamic_symbol,
1623 because this might be a case of linking PIC code without
1624 linking in any dynamic objects, in which case we don't
1625 need to generate a procedure linkage table after all. */
1626
1627 if (h == NULL)
1628 {
1629 if (! ABI_64_P (abfd))
1630 {
1631 /* The Solaris native assembler will generate a WPLT30
1632 reloc for a local symbol if you assemble a call from
1633 one section to another when using -K pic. We treat
1634 it as WDISP30. */
1635 if (r_type == R_SPARC_PLT32)
1636 goto r_sparc_plt32;
1637 break;
1638 }
1639 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1640 else if (r_type == R_SPARC_WPLT30)
1641 break;
1642
1643 /* It does not make sense to have a procedure linkage
1644 table entry for a local symbol. */
1645 bfd_set_error (bfd_error_bad_value);
1646 return FALSE;
1647 }
1648
1649 h->needs_plt = 1;
1650
1651 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
1652 goto r_sparc_plt32;
1653
1654 h->plt.refcount += 1;
1655
1656 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1657 eh->has_got_reloc = 1;
1658 break;
1659
1660 case R_SPARC_PC10:
1661 case R_SPARC_PC22:
1662 case R_SPARC_PC_HH22:
1663 case R_SPARC_PC_HM10:
1664 case R_SPARC_PC_LM22:
1665 if (h != NULL)
1666 h->non_got_ref = 1;
1667
1668 if (h != NULL
1669 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1670 break;
1671 /* Fall through. */
1672
1673 case R_SPARC_DISP8:
1674 case R_SPARC_DISP16:
1675 case R_SPARC_DISP32:
1676 case R_SPARC_DISP64:
1677 case R_SPARC_WDISP30:
1678 case R_SPARC_WDISP22:
1679 case R_SPARC_WDISP19:
1680 case R_SPARC_WDISP16:
1681 case R_SPARC_WDISP10:
1682 case R_SPARC_8:
1683 case R_SPARC_16:
1684 case R_SPARC_32:
1685 case R_SPARC_HI22:
1686 case R_SPARC_22:
1687 case R_SPARC_13:
1688 case R_SPARC_LO10:
1689 case R_SPARC_UA16:
1690 case R_SPARC_UA32:
1691 case R_SPARC_10:
1692 case R_SPARC_11:
1693 case R_SPARC_64:
1694 case R_SPARC_OLO10:
1695 case R_SPARC_HH22:
1696 case R_SPARC_HM10:
1697 case R_SPARC_LM22:
1698 case R_SPARC_7:
1699 case R_SPARC_5:
1700 case R_SPARC_6:
1701 case R_SPARC_HIX22:
1702 case R_SPARC_LOX10:
1703 case R_SPARC_H44:
1704 case R_SPARC_M44:
1705 case R_SPARC_L44:
1706 case R_SPARC_H34:
1707 case R_SPARC_UA64:
1708 if (h != NULL)
1709 h->non_got_ref = 1;
1710
1711 if (eh != NULL && (sec->flags & SEC_CODE) != 0)
1712 eh->has_non_got_reloc = 1;
1713
1714 r_sparc_plt32:
1715 if (h != NULL && !bfd_link_pic (info))
1716 {
1717 /* We may need a .plt entry if the function this reloc
1718 refers to is in a shared lib. */
1719 h->plt.refcount += 1;
1720 }
1721
1722 /* If we are creating a shared library, and this is a reloc
1723 against a global symbol, or a non PC relative reloc
1724 against a local symbol, then we need to copy the reloc
1725 into the shared library. However, if we are linking with
1726 -Bsymbolic, we do not need to copy a reloc against a
1727 global symbol which is defined in an object we are
1728 including in the link (i.e., DEF_REGULAR is set). At
1729 this point we have not seen all the input files, so it is
1730 possible that DEF_REGULAR is not set now but will be set
1731 later (it is never cleared). In case of a weak definition,
1732 DEF_REGULAR may be cleared later by a strong definition in
1733 a shared library. We account for that possibility below by
1734 storing information in the relocs_copied field of the hash
1735 table entry. A similar situation occurs when creating
1736 shared libraries and symbol visibility changes render the
1737 symbol local.
1738
1739 If on the other hand, we are creating an executable, we
1740 may need to keep relocations for symbols satisfied by a
1741 dynamic library if we manage to avoid copy relocs for the
1742 symbol. */
1743 if ((bfd_link_pic (info)
1744 && (sec->flags & SEC_ALLOC) != 0
1745 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1746 || (h != NULL
1747 && (! SYMBOLIC_BIND (info, h)
1748 || h->root.type == bfd_link_hash_defweak
1749 || !h->def_regular))))
1750 || (!bfd_link_pic (info)
1751 && (sec->flags & SEC_ALLOC) != 0
1752 && h != NULL
1753 && (h->root.type == bfd_link_hash_defweak
1754 || !h->def_regular))
1755 || (!bfd_link_pic (info)
1756 && h != NULL
1757 && h->type == STT_GNU_IFUNC))
1758 {
1759 struct elf_dyn_relocs *p;
1760 struct elf_dyn_relocs **head;
1761
1762 /* When creating a shared object, we must copy these
1763 relocs into the output file. We create a reloc
1764 section in dynobj and make room for the reloc. */
1765 if (sreloc == NULL)
1766 {
1767 sreloc = _bfd_elf_make_dynamic_reloc_section
1768 (sec, htab->elf.dynobj, htab->word_align_power,
1769 abfd, /*rela?*/ TRUE);
1770
1771 if (sreloc == NULL)
1772 return FALSE;
1773 }
1774
1775 /* If this is a global symbol, we count the number of
1776 relocations we need for this symbol. */
1777 if (h != NULL)
1778 head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
1779 else
1780 {
1781 /* Track dynamic relocs needed for local syms too.
1782 We really need local syms available to do this
1783 easily. Oh well. */
1784 asection *s;
1785 void *vpp;
1786
1787 BFD_ASSERT (isym != NULL);
1788 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1789 if (s == NULL)
1790 s = sec;
1791
1792 vpp = &elf_section_data (s)->local_dynrel;
1793 head = (struct elf_dyn_relocs **) vpp;
1794 }
1795
1796 p = *head;
1797 if (p == NULL || p->sec != sec)
1798 {
1799 bfd_size_type amt = sizeof *p;
1800 p = ((struct elf_dyn_relocs *)
1801 bfd_alloc (htab->elf.dynobj, amt));
1802 if (p == NULL)
1803 return FALSE;
1804 p->next = *head;
1805 *head = p;
1806 p->sec = sec;
1807 p->count = 0;
1808 p->pc_count = 0;
1809 }
1810
1811 p->count += 1;
1812 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1813 p->pc_count += 1;
1814 }
1815
1816 break;
1817
1818 case R_SPARC_GNU_VTINHERIT:
1819 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1820 return FALSE;
1821 break;
1822
1823 case R_SPARC_GNU_VTENTRY:
1824 BFD_ASSERT (h != NULL);
1825 if (h != NULL
1826 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1827 return FALSE;
1828 break;
1829
1830 case R_SPARC_REGISTER:
1831 /* Nothing to do. */
1832 break;
1833
1834 default:
1835 break;
1836 }
1837 }
1838
1839 return TRUE;
1840 }
1841 \f
1842 asection *
1843 _bfd_sparc_elf_gc_mark_hook (asection *sec,
1844 struct bfd_link_info *info,
1845 Elf_Internal_Rela *rel,
1846 struct elf_link_hash_entry *h,
1847 Elf_Internal_Sym *sym)
1848 {
1849 if (h != NULL)
1850 switch (SPARC_ELF_R_TYPE (rel->r_info))
1851 {
1852 case R_SPARC_GNU_VTINHERIT:
1853 case R_SPARC_GNU_VTENTRY:
1854 return NULL;
1855 }
1856
1857 if (!bfd_link_executable (info))
1858 {
1859 switch (SPARC_ELF_R_TYPE (rel->r_info))
1860 {
1861 case R_SPARC_TLS_GD_CALL:
1862 case R_SPARC_TLS_LDM_CALL:
1863 /* This reloc implicitly references __tls_get_addr. We know
1864 another reloc will reference the same symbol as the one
1865 on this reloc, so the real symbol and section will be
1866 gc marked when processing the other reloc. That lets
1867 us handle __tls_get_addr here. */
1868 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1869 FALSE, FALSE, TRUE);
1870 BFD_ASSERT (h != NULL);
1871 h->mark = 1;
1872 if (h->is_weakalias)
1873 weakdef (h)->mark = 1;
1874 sym = NULL;
1875 }
1876 }
1877
1878 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1879 }
1880
1881 static Elf_Internal_Rela *
1882 sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
1883 Elf_Internal_Rela *relend,
1884 bfd_vma offset)
1885 {
1886 while (rel < relend)
1887 {
1888 if (rel->r_offset == offset)
1889 return rel;
1890 rel++;
1891 }
1892 return NULL;
1893 }
1894
1895 /* Remove undefined weak symbol from the dynamic symbol table if it
1896 is resolved to 0. */
1897
1898 bfd_boolean
1899 _bfd_sparc_elf_fixup_symbol (struct bfd_link_info *info,
1900 struct elf_link_hash_entry *h)
1901 {
1902 if (h->dynindx != -1
1903 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
1904 _bfd_sparc_elf_hash_entry (h)))
1905 {
1906 h->dynindx = -1;
1907 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1908 h->dynstr_index);
1909 }
1910 return TRUE;
1911 }
1912
1913 /* Find dynamic relocs for H that apply to read-only sections. */
1914
1915 static asection *
1916 readonly_dynrelocs (struct elf_link_hash_entry *h)
1917 {
1918 struct elf_dyn_relocs *p;
1919
1920 for (p = _bfd_sparc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
1921 {
1922 asection *s = p->sec->output_section;
1923
1924 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1925 return p->sec;
1926 }
1927 return NULL;
1928 }
1929
1930 /* Adjust a symbol defined by a dynamic object and referenced by a
1931 regular object. The current definition is in some section of the
1932 dynamic object, but we're not including those sections. We have to
1933 change the definition to something the rest of the link can
1934 understand. */
1935
1936 bfd_boolean
1937 _bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1938 struct elf_link_hash_entry *h)
1939 {
1940 struct _bfd_sparc_elf_link_hash_table *htab;
1941 asection *s, *srel;
1942
1943 htab = _bfd_sparc_elf_hash_table (info);
1944 BFD_ASSERT (htab != NULL);
1945
1946 /* Make sure we know what is going on here. */
1947 BFD_ASSERT (htab->elf.dynobj != NULL
1948 && (h->needs_plt
1949 || h->type == STT_GNU_IFUNC
1950 || h->is_weakalias
1951 || (h->def_dynamic
1952 && h->ref_regular
1953 && !h->def_regular)));
1954
1955 /* If this is a function, put it in the procedure linkage table. We
1956 will fill in the contents of the procedure linkage table later
1957 (although we could actually do it here). The STT_NOTYPE
1958 condition is a hack specifically for the Oracle libraries
1959 delivered for Solaris; for some inexplicable reason, they define
1960 some of their functions as STT_NOTYPE when they really should be
1961 STT_FUNC. */
1962 if (h->type == STT_FUNC
1963 || h->type == STT_GNU_IFUNC
1964 || h->needs_plt
1965 || (h->type == STT_NOTYPE
1966 && (h->root.type == bfd_link_hash_defined
1967 || h->root.type == bfd_link_hash_defweak)
1968 && (h->root.u.def.section->flags & SEC_CODE) != 0))
1969 {
1970 if (h->plt.refcount <= 0
1971 || (h->type != STT_GNU_IFUNC
1972 && (SYMBOL_CALLS_LOCAL (info, h)
1973 || (h->root.type == bfd_link_hash_undefweak
1974 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT))))
1975 {
1976 /* This case can occur if we saw a WPLT30 reloc in an input
1977 file, but the symbol was never referred to by a dynamic
1978 object, or if all references were garbage collected. In
1979 such a case, we don't actually need to build a procedure
1980 linkage table, and we can just do a WDISP30 reloc instead. */
1981 h->plt.offset = (bfd_vma) -1;
1982 h->needs_plt = 0;
1983 }
1984
1985 return TRUE;
1986 }
1987 else
1988 h->plt.offset = (bfd_vma) -1;
1989
1990 /* If this is a weak symbol, and there is a real definition, the
1991 processor independent code will have arranged for us to see the
1992 real definition first, and we can just use the same value. */
1993 if (h->is_weakalias)
1994 {
1995 struct elf_link_hash_entry *def = weakdef (h);
1996 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1997 h->root.u.def.section = def->root.u.def.section;
1998 h->root.u.def.value = def->root.u.def.value;
1999 return TRUE;
2000 }
2001
2002 /* This is a reference to a symbol defined by a dynamic object which
2003 is not a function. */
2004
2005 /* If we are creating a shared library, we must presume that the
2006 only references to the symbol are via the global offset table.
2007 For such cases we need not do anything here; the relocations will
2008 be handled correctly by relocate_section. */
2009 if (bfd_link_pic (info))
2010 return TRUE;
2011
2012 /* If there are no references to this symbol that do not use the
2013 GOT, we don't need to generate a copy reloc. */
2014 if (!h->non_got_ref)
2015 return TRUE;
2016
2017 /* If -z nocopyreloc was given, we won't generate them either. */
2018 if (info->nocopyreloc)
2019 {
2020 h->non_got_ref = 0;
2021 return TRUE;
2022 }
2023
2024 /* If we don't find any dynamic relocs in read-only sections, then
2025 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2026 if (!readonly_dynrelocs (h))
2027 {
2028 h->non_got_ref = 0;
2029 return TRUE;
2030 }
2031
2032 /* We must allocate the symbol in our .dynbss section, which will
2033 become part of the .bss section of the executable. There will be
2034 an entry for this symbol in the .dynsym section. The dynamic
2035 object will contain position independent code, so all references
2036 from the dynamic object to this symbol will go through the global
2037 offset table. The dynamic linker will use the .dynsym entry to
2038 determine the address it must put in the global offset table, so
2039 both the dynamic object and the regular object will refer to the
2040 same memory location for the variable. */
2041
2042 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2043 to copy the initial value out of the dynamic object and into the
2044 runtime process image. We need to remember the offset into the
2045 .rel.bss section we are going to use. */
2046 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2047 {
2048 s = htab->elf.sdynrelro;
2049 srel = htab->elf.sreldynrelro;
2050 }
2051 else
2052 {
2053 s = htab->elf.sdynbss;
2054 srel = htab->elf.srelbss;
2055 }
2056 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2057 {
2058 srel->size += SPARC_ELF_RELA_BYTES (htab);
2059 h->needs_copy = 1;
2060 }
2061
2062 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2063 }
2064
2065 /* Allocate space in .plt, .got and associated reloc sections for
2066 dynamic relocs. */
2067
2068 static bfd_boolean
2069 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2070 {
2071 struct bfd_link_info *info;
2072 struct _bfd_sparc_elf_link_hash_table *htab;
2073 struct _bfd_sparc_elf_link_hash_entry *eh;
2074 struct elf_dyn_relocs *p;
2075 bfd_boolean resolved_to_zero;
2076
2077 if (h->root.type == bfd_link_hash_indirect)
2078 return TRUE;
2079
2080 info = (struct bfd_link_info *) inf;
2081 htab = _bfd_sparc_elf_hash_table (info);
2082 BFD_ASSERT (htab != NULL);
2083
2084 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2085 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
2086
2087 if ((htab->elf.dynamic_sections_created
2088 && h->plt.refcount > 0)
2089 || (h->type == STT_GNU_IFUNC
2090 && h->def_regular
2091 && h->ref_regular))
2092 {
2093 /* Undefined weak syms won't yet be marked as dynamic. */
2094 if (h->root.type == bfd_link_hash_undefweak
2095 && !resolved_to_zero
2096 && h->dynindx == -1
2097 && !h->forced_local)
2098 {
2099 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2100 return FALSE;
2101 }
2102
2103 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
2104 || (h->type == STT_GNU_IFUNC
2105 && h->def_regular))
2106 {
2107 asection *s = htab->elf.splt;
2108
2109 if (s == NULL)
2110 s = htab->elf.iplt;
2111
2112 /* Allocate room for the header. */
2113 if (s->size == 0)
2114 {
2115 s->size = htab->plt_header_size;
2116
2117 /* Allocate space for the .rela.plt.unloaded relocations. */
2118 if (htab->is_vxworks && !bfd_link_pic (info))
2119 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2120 }
2121
2122 /* The procedure linkage table size is bounded by the magnitude
2123 of the offset we can describe in the entry. */
2124 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
2125 (((bfd_vma)1 << 31) << 1) : 0x400000))
2126 {
2127 bfd_set_error (bfd_error_bad_value);
2128 return FALSE;
2129 }
2130
2131 if (SPARC_ELF_WORD_BYTES(htab) == 8
2132 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2133 {
2134 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2135
2136
2137 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2138
2139 h->plt.offset = (s->size - (off * 8));
2140 }
2141 else
2142 h->plt.offset = s->size;
2143
2144 /* If this symbol is not defined in a regular file, and we are
2145 not generating a shared library, then set the symbol to this
2146 location in the .plt. This is required to make function
2147 pointers compare as equal between the normal executable and
2148 the shared library. */
2149 if (! bfd_link_pic (info)
2150 && !h->def_regular)
2151 {
2152 h->root.u.def.section = s;
2153 h->root.u.def.value = h->plt.offset;
2154 }
2155
2156 /* Make room for this entry. */
2157 s->size += htab->plt_entry_size;
2158
2159 /* There should be no PLT relocations against resolved undefined
2160 weak symbols in the executable. */
2161 if (!resolved_to_zero)
2162 {
2163 /* We also need to make an entry in the .rela.plt section. */
2164 if (s == htab->elf.splt)
2165 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
2166 else
2167 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
2168 }
2169
2170 if (htab->is_vxworks)
2171 {
2172 /* Allocate space for the .got.plt entry. */
2173 htab->elf.sgotplt->size += 4;
2174
2175 /* ...and for the .rela.plt.unloaded relocations. */
2176 if (!bfd_link_pic (info))
2177 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2178 }
2179 }
2180 else
2181 {
2182 h->plt.offset = (bfd_vma) -1;
2183 h->needs_plt = 0;
2184 }
2185 }
2186 else
2187 {
2188 h->plt.offset = (bfd_vma) -1;
2189 h->needs_plt = 0;
2190 }
2191
2192 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2193 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2194 if (h->got.refcount > 0
2195 && bfd_link_executable (info)
2196 && h->dynindx == -1
2197 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2198 h->got.offset = (bfd_vma) -1;
2199 else if (h->got.refcount > 0)
2200 {
2201 asection *s;
2202 bfd_boolean dyn;
2203 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2204
2205 /* Undefined weak syms won't yet be marked as dynamic. */
2206 if (h->root.type == bfd_link_hash_undefweak
2207 && !resolved_to_zero
2208 && h->dynindx == -1
2209 && !h->forced_local)
2210 {
2211 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2212 return FALSE;
2213 }
2214
2215 s = htab->elf.sgot;
2216 h->got.offset = s->size;
2217 s->size += SPARC_ELF_WORD_BYTES (htab);
2218 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2219 if (tls_type == GOT_TLS_GD)
2220 s->size += SPARC_ELF_WORD_BYTES (htab);
2221 dyn = htab->elf.dynamic_sections_created;
2222 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2223 R_SPARC_TLS_GD_{HI22,LO10} needs one if local and two if global. */
2224 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
2225 || tls_type == GOT_TLS_IE
2226 || h->type == STT_GNU_IFUNC)
2227 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2228 else if (tls_type == GOT_TLS_GD)
2229 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
2230 else if ((WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)
2231 /* Even if the symbol isn't dynamic, we may generate a
2232 reloc for the dynamic linker in PIC mode. */
2233 || (h->dynindx == -1
2234 && !h->forced_local
2235 && h->root.type != bfd_link_hash_undefweak
2236 && bfd_link_pic (info)))
2237 /* No dynamic relocations are needed against resolved
2238 undefined weak symbols in an executable. */
2239 && !(h->root.type == bfd_link_hash_undefweak
2240 && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2241 || resolved_to_zero)))
2242 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2243 }
2244 else
2245 h->got.offset = (bfd_vma) -1;
2246
2247 if (eh->dyn_relocs == NULL)
2248 return TRUE;
2249
2250 /* In the shared -Bsymbolic case, discard space allocated for
2251 dynamic pc-relative relocs against symbols which turn out to be
2252 defined in regular objects. For the normal shared case, discard
2253 space for pc-relative relocs that have become local due to symbol
2254 visibility changes. */
2255
2256 if (bfd_link_pic (info))
2257 {
2258 if (SYMBOL_CALLS_LOCAL (info, h))
2259 {
2260 struct elf_dyn_relocs **pp;
2261
2262 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2263 {
2264 p->count -= p->pc_count;
2265 p->pc_count = 0;
2266 if (p->count == 0)
2267 *pp = p->next;
2268 else
2269 pp = &p->next;
2270 }
2271 }
2272
2273 if (htab->is_vxworks)
2274 {
2275 struct elf_dyn_relocs **pp;
2276
2277 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2278 {
2279 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2280 *pp = p->next;
2281 else
2282 pp = &p->next;
2283 }
2284 }
2285
2286 /* Also discard relocs on undefined weak syms with non-default
2287 visibility or in PIE. */
2288 if (eh->dyn_relocs != NULL
2289 && h->root.type == bfd_link_hash_undefweak)
2290 {
2291 /* An undefined weak symbol is never
2292 bound locally in a shared library. */
2293
2294 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2295 || resolved_to_zero)
2296 {
2297 if (h->non_got_ref)
2298 {
2299 /* Keep dynamic non-GOT/non-PLT relocation so that we
2300 can branch to 0 without PLT. */
2301 struct elf_dyn_relocs **pp;
2302
2303 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2304 if (p->pc_count == 0)
2305 *pp = p->next;
2306 else
2307 {
2308 /* Remove other relocations. */
2309 p->count = p->pc_count;
2310 pp = &p->next;
2311 }
2312
2313 if (eh->dyn_relocs != NULL)
2314 {
2315 /* Make sure undefined weak symbols are output
2316 as dynamic symbols in PIEs for dynamic non-GOT
2317 non-PLT reloations. */
2318 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2319 return FALSE;
2320 }
2321 }
2322 else
2323 eh->dyn_relocs = NULL;
2324 }
2325
2326 /* Make sure undefined weak symbols are output as a dynamic
2327 symbol in PIEs. */
2328 else if (h->dynindx == -1
2329 && !h->forced_local)
2330 {
2331 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2332 return FALSE;
2333 }
2334 }
2335 }
2336 else
2337 {
2338 /* For the non-shared case, discard space for relocs against
2339 symbols which turn out to need copy relocs or are not
2340 dynamic. */
2341
2342 if ((!h->non_got_ref
2343 || (h->root.type == bfd_link_hash_undefweak
2344 && !resolved_to_zero))
2345 && ((h->def_dynamic
2346 && !h->def_regular)
2347 || (htab->elf.dynamic_sections_created
2348 && (h->root.type == bfd_link_hash_undefweak
2349 || h->root.type == bfd_link_hash_undefined))))
2350 {
2351 /* Undefined weak syms won't yet be marked as dynamic. */
2352 if (h->root.type == bfd_link_hash_undefweak
2353 && !resolved_to_zero
2354 && h->dynindx == -1
2355 && !h->forced_local)
2356 {
2357 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2358 return FALSE;
2359 }
2360
2361 /* If that succeeded, we know we'll be keeping all the
2362 relocs. */
2363 if (h->dynindx != -1)
2364 goto keep;
2365 }
2366
2367 eh->dyn_relocs = NULL;
2368
2369 keep: ;
2370 }
2371
2372 /* Finally, allocate space. */
2373 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2374 {
2375 asection *sreloc = elf_section_data (p->sec)->sreloc;
2376 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2377 }
2378
2379 return TRUE;
2380 }
2381
2382 /* Allocate space in .plt, .got and associated reloc sections for
2383 local dynamic relocs. */
2384
2385 static bfd_boolean
2386 allocate_local_dynrelocs (void **slot, void *inf)
2387 {
2388 struct elf_link_hash_entry *h
2389 = (struct elf_link_hash_entry *) *slot;
2390
2391 if (h->type != STT_GNU_IFUNC
2392 || !h->def_regular
2393 || !h->ref_regular
2394 || !h->forced_local
2395 || h->root.type != bfd_link_hash_defined)
2396 abort ();
2397
2398 return allocate_dynrelocs (h, inf);
2399 }
2400
2401 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2402 read-only sections. */
2403
2404 static bfd_boolean
2405 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
2406 {
2407 asection *sec;
2408
2409 if (h->root.type == bfd_link_hash_indirect)
2410 return TRUE;
2411
2412 sec = readonly_dynrelocs (h);
2413 if (sec != NULL)
2414 {
2415 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
2416
2417 info->flags |= DF_TEXTREL;
2418 info->callbacks->minfo
2419 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
2420 sec->owner, h->root.root.string, sec);
2421
2422 /* Not an error, just cut short the traversal. */
2423 return FALSE;
2424 }
2425 return TRUE;
2426 }
2427
2428 /* Return true if the dynamic symbol for a given section should be
2429 omitted when creating a shared library. */
2430
2431 bfd_boolean
2432 _bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2433 struct bfd_link_info *info,
2434 asection *p)
2435 {
2436 /* We keep the .got section symbol so that explicit relocations
2437 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2438 can be turned into relocations against the .got symbol. */
2439 if (strcmp (p->name, ".got") == 0)
2440 return FALSE;
2441
2442 return _bfd_elf_omit_section_dynsym_default (output_bfd, info, p);
2443 }
2444
2445 /* Set the sizes of the dynamic sections. */
2446
2447 bfd_boolean
2448 _bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2449 struct bfd_link_info *info)
2450 {
2451 struct _bfd_sparc_elf_link_hash_table *htab;
2452 bfd *dynobj;
2453 asection *s;
2454 bfd *ibfd;
2455
2456 htab = _bfd_sparc_elf_hash_table (info);
2457 BFD_ASSERT (htab != NULL);
2458 dynobj = htab->elf.dynobj;
2459 BFD_ASSERT (dynobj != NULL);
2460
2461 if (elf_hash_table (info)->dynamic_sections_created)
2462 {
2463 /* Set the contents of the .interp section to the interpreter. */
2464 if (bfd_link_executable (info) && !info->nointerp)
2465 {
2466 s = bfd_get_linker_section (dynobj, ".interp");
2467 BFD_ASSERT (s != NULL);
2468 s->size = htab->dynamic_interpreter_size;
2469 s->contents = (unsigned char *) htab->dynamic_interpreter;
2470 htab->interp = s;
2471 }
2472 }
2473
2474 /* Set up .got offsets for local syms, and space for local dynamic
2475 relocs. */
2476 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2477 {
2478 bfd_signed_vma *local_got;
2479 bfd_signed_vma *end_local_got;
2480 char *local_tls_type;
2481 bfd_size_type locsymcount;
2482 Elf_Internal_Shdr *symtab_hdr;
2483 asection *srel;
2484
2485 if (! is_sparc_elf (ibfd))
2486 continue;
2487
2488 for (s = ibfd->sections; s != NULL; s = s->next)
2489 {
2490 struct elf_dyn_relocs *p;
2491
2492 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2493 {
2494 if (!bfd_is_abs_section (p->sec)
2495 && bfd_is_abs_section (p->sec->output_section))
2496 {
2497 /* Input section has been discarded, either because
2498 it is a copy of a linkonce section or due to
2499 linker script /DISCARD/, so we'll be discarding
2500 the relocs too. */
2501 }
2502 else if (htab->is_vxworks
2503 && strcmp (p->sec->output_section->name,
2504 ".tls_vars") == 0)
2505 {
2506 /* Relocations in vxworks .tls_vars sections are
2507 handled specially by the loader. */
2508 }
2509 else if (p->count != 0)
2510 {
2511 srel = elf_section_data (p->sec)->sreloc;
2512 if (!htab->elf.dynamic_sections_created)
2513 srel = htab->elf.irelplt;
2514 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2515 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2516 {
2517 info->flags |= DF_TEXTREL;
2518 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
2519 p->sec->owner, p->sec);
2520 }
2521 }
2522 }
2523 }
2524
2525 local_got = elf_local_got_refcounts (ibfd);
2526 if (!local_got)
2527 continue;
2528
2529 symtab_hdr = &elf_symtab_hdr (ibfd);
2530 locsymcount = symtab_hdr->sh_info;
2531 end_local_got = local_got + locsymcount;
2532 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
2533 s = htab->elf.sgot;
2534 srel = htab->elf.srelgot;
2535 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2536 {
2537 if (*local_got > 0)
2538 {
2539 *local_got = s->size;
2540 s->size += SPARC_ELF_WORD_BYTES (htab);
2541 if (*local_tls_type == GOT_TLS_GD)
2542 s->size += SPARC_ELF_WORD_BYTES (htab);
2543 if (bfd_link_pic (info)
2544 || *local_tls_type == GOT_TLS_GD
2545 || *local_tls_type == GOT_TLS_IE)
2546 srel->size += SPARC_ELF_RELA_BYTES (htab);
2547 }
2548 else
2549 *local_got = (bfd_vma) -1;
2550 }
2551 }
2552
2553 if (htab->tls_ldm_got.refcount > 0)
2554 {
2555 /* Allocate 2 got entries and 1 dynamic reloc for
2556 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
2557 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2558 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2559 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2560 }
2561 else
2562 htab->tls_ldm_got.offset = -1;
2563
2564 /* Allocate global sym .plt and .got entries, and space for global
2565 sym dynamic relocs. */
2566 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2567
2568 /* Allocate .plt and .got entries, and space for local symbols. */
2569 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2570
2571 if (! ABI_64_P (output_bfd)
2572 && !htab->is_vxworks
2573 && elf_hash_table (info)->dynamic_sections_created)
2574 {
2575 /* Make space for the trailing nop in .plt. */
2576 if (htab->elf.splt->size > 0)
2577 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
2578
2579 /* If the .got section is more than 0x1000 bytes, we add
2580 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2581 bit relocations have a greater chance of working.
2582
2583 FIXME: Make this optimization work for 64-bit too. */
2584 if (htab->elf.sgot->size >= 0x1000
2585 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2586 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2587 }
2588
2589 /* The check_relocs and adjust_dynamic_symbol entry points have
2590 determined the sizes of the various dynamic sections. Allocate
2591 memory for them. */
2592 for (s = dynobj->sections; s != NULL; s = s->next)
2593 {
2594 if ((s->flags & SEC_LINKER_CREATED) == 0)
2595 continue;
2596
2597 if (s == htab->elf.splt
2598 || s == htab->elf.sgot
2599 || s == htab->elf.sdynbss
2600 || s == htab->elf.sdynrelro
2601 || s == htab->elf.iplt
2602 || s == htab->elf.sgotplt)
2603 {
2604 /* Strip this section if we don't need it; see the
2605 comment below. */
2606 }
2607 else if (CONST_STRNEQ (s->name, ".rela"))
2608 {
2609 if (s->size != 0)
2610 {
2611 /* We use the reloc_count field as a counter if we need
2612 to copy relocs into the output file. */
2613 s->reloc_count = 0;
2614 }
2615 }
2616 else
2617 {
2618 /* It's not one of our sections. */
2619 continue;
2620 }
2621
2622 if (s->size == 0)
2623 {
2624 /* If we don't need this section, strip it from the
2625 output file. This is mostly to handle .rela.bss and
2626 .rela.plt. We must create both sections in
2627 create_dynamic_sections, because they must be created
2628 before the linker maps input sections to output
2629 sections. The linker does that before
2630 adjust_dynamic_symbol is called, and it is that
2631 function which decides whether anything needs to go
2632 into these sections. */
2633 s->flags |= SEC_EXCLUDE;
2634 continue;
2635 }
2636
2637 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2638 continue;
2639
2640 /* Allocate memory for the section contents. Zero the memory
2641 for the benefit of .rela.plt, which has 4 unused entries
2642 at the beginning, and we don't want garbage. */
2643 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2644 if (s->contents == NULL)
2645 return FALSE;
2646 }
2647
2648 if (elf_hash_table (info)->dynamic_sections_created)
2649 {
2650 /* Add some entries to the .dynamic section. We fill in the
2651 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2652 must add the entries now so that we get the correct size for
2653 the .dynamic section. The DT_DEBUG entry is filled in by the
2654 dynamic linker and used by the debugger. */
2655 #define add_dynamic_entry(TAG, VAL) \
2656 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2657
2658 if (bfd_link_executable (info))
2659 {
2660 if (!add_dynamic_entry (DT_DEBUG, 0))
2661 return FALSE;
2662 }
2663
2664 if (htab->elf.srelplt->size != 0)
2665 {
2666 if (!add_dynamic_entry (DT_PLTGOT, 0)
2667 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2668 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2669 || !add_dynamic_entry (DT_JMPREL, 0))
2670 return FALSE;
2671 }
2672
2673 if (!add_dynamic_entry (DT_RELA, 0)
2674 || !add_dynamic_entry (DT_RELASZ, 0)
2675 || !add_dynamic_entry (DT_RELAENT,
2676 SPARC_ELF_RELA_BYTES (htab)))
2677 return FALSE;
2678
2679 /* If any dynamic relocs apply to a read-only section,
2680 then we need a DT_TEXTREL entry. */
2681 if ((info->flags & DF_TEXTREL) == 0)
2682 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
2683
2684 if (info->flags & DF_TEXTREL)
2685 {
2686 if (!add_dynamic_entry (DT_TEXTREL, 0))
2687 return FALSE;
2688 }
2689
2690 if (ABI_64_P (output_bfd))
2691 {
2692 int reg;
2693 struct _bfd_sparc_elf_app_reg * app_regs;
2694 struct elf_strtab_hash *dynstr;
2695 struct elf_link_hash_table *eht = elf_hash_table (info);
2696
2697 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2698 entries if needed. */
2699 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2700 dynstr = eht->dynstr;
2701
2702 for (reg = 0; reg < 4; reg++)
2703 if (app_regs [reg].name != NULL)
2704 {
2705 struct elf_link_local_dynamic_entry *entry, *e;
2706
2707 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2708 return FALSE;
2709
2710 entry = (struct elf_link_local_dynamic_entry *)
2711 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2712 if (entry == NULL)
2713 return FALSE;
2714
2715 /* We cheat here a little bit: the symbol will not be local, so we
2716 put it at the end of the dynlocal linked list. We will fix it
2717 later on, as we have to fix other fields anyway. */
2718 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2719 entry->isym.st_size = 0;
2720 if (*app_regs [reg].name != '\0')
2721 entry->isym.st_name
2722 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2723 else
2724 entry->isym.st_name = 0;
2725 entry->isym.st_other = 0;
2726 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2727 STT_REGISTER);
2728 entry->isym.st_shndx = app_regs [reg].shndx;
2729 entry->isym.st_target_internal = 0;
2730 entry->next = NULL;
2731 entry->input_bfd = output_bfd;
2732 entry->input_indx = -1;
2733
2734 if (eht->dynlocal == NULL)
2735 eht->dynlocal = entry;
2736 else
2737 {
2738 for (e = eht->dynlocal; e->next; e = e->next)
2739 ;
2740 e->next = entry;
2741 }
2742 eht->dynsymcount++;
2743 }
2744 }
2745 if (htab->is_vxworks
2746 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2747 return FALSE;
2748 }
2749 #undef add_dynamic_entry
2750
2751 return TRUE;
2752 }
2753 \f
2754 bfd_boolean
2755 _bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2756 {
2757 if (!sec->used_by_bfd)
2758 {
2759 struct _bfd_sparc_elf_section_data *sdata;
2760 bfd_size_type amt = sizeof (*sdata);
2761
2762 sdata = bfd_zalloc (abfd, amt);
2763 if (sdata == NULL)
2764 return FALSE;
2765 sec->used_by_bfd = sdata;
2766 }
2767
2768 return _bfd_elf_new_section_hook (abfd, sec);
2769 }
2770
2771 bfd_boolean
2772 _bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2773 struct bfd_section *section,
2774 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2775 bfd_boolean *again)
2776 {
2777 if (bfd_link_relocatable (link_info))
2778 (*link_info->callbacks->einfo)
2779 (_("%P%F: --relax and -r may not be used together\n"));
2780
2781 *again = FALSE;
2782 sec_do_relax (section) = 1;
2783 return TRUE;
2784 }
2785 \f
2786 /* Return the base VMA address which should be subtracted from real addresses
2787 when resolving @dtpoff relocation.
2788 This is PT_TLS segment p_vaddr. */
2789
2790 static bfd_vma
2791 dtpoff_base (struct bfd_link_info *info)
2792 {
2793 /* If tls_sec is NULL, we should have signalled an error already. */
2794 if (elf_hash_table (info)->tls_sec == NULL)
2795 return 0;
2796 return elf_hash_table (info)->tls_sec->vma;
2797 }
2798
2799 /* Return the relocation value for @tpoff relocation
2800 if STT_TLS virtual address is ADDRESS. */
2801
2802 static bfd_vma
2803 tpoff (struct bfd_link_info *info, bfd_vma address)
2804 {
2805 struct elf_link_hash_table *htab = elf_hash_table (info);
2806 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
2807 bfd_vma static_tls_size;
2808
2809 /* If tls_sec is NULL, we should have signalled an error already. */
2810 if (htab->tls_sec == NULL)
2811 return 0;
2812
2813 /* Consider special static TLS alignment requirements. */
2814 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
2815 return address - static_tls_size - htab->tls_sec->vma;
2816 }
2817
2818 /* Return the relocation value for a %gdop relocation. */
2819
2820 static bfd_vma
2821 gdopoff (struct bfd_link_info *info, bfd_vma address)
2822 {
2823 struct elf_link_hash_table *htab = elf_hash_table (info);
2824 bfd_vma got_base;
2825
2826 got_base = (htab->hgot->root.u.def.value
2827 + htab->hgot->root.u.def.section->output_offset
2828 + htab->hgot->root.u.def.section->output_section->vma);
2829
2830 return address - got_base;
2831 }
2832
2833 /* Return whether H is local and its ADDRESS is within 4G of
2834 _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
2835 sethi, xor sequence. */
2836
2837 static bfd_boolean
2838 gdop_relative_offset_ok (struct bfd_link_info *info,
2839 struct elf_link_hash_entry *h,
2840 bfd_vma address ATTRIBUTE_UNUSED)
2841 {
2842 if (!SYMBOL_REFERENCES_LOCAL (info, h))
2843 return FALSE;
2844 /* If H is undefined, ADDRESS will be zero. We can't allow a
2845 relative offset to "zero" when producing PIEs or shared libs.
2846 Note that to get here with an undefined symbol it must also be
2847 hidden or internal visibility. */
2848 if (bfd_link_pic (info)
2849 && h != NULL
2850 && (h->root.type == bfd_link_hash_undefweak
2851 || h->root.type == bfd_link_hash_undefined))
2852 return FALSE;
2853 #ifdef BFD64
2854 return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
2855 #else
2856 return TRUE;
2857 #endif
2858 }
2859
2860 /* Relocate a SPARC ELF section. */
2861
2862 bfd_boolean
2863 _bfd_sparc_elf_relocate_section (bfd *output_bfd,
2864 struct bfd_link_info *info,
2865 bfd *input_bfd,
2866 asection *input_section,
2867 bfd_byte *contents,
2868 Elf_Internal_Rela *relocs,
2869 Elf_Internal_Sym *local_syms,
2870 asection **local_sections)
2871 {
2872 struct _bfd_sparc_elf_link_hash_table *htab;
2873 Elf_Internal_Shdr *symtab_hdr;
2874 struct elf_link_hash_entry **sym_hashes;
2875 bfd_vma *local_got_offsets;
2876 bfd_vma got_base;
2877 asection *sreloc;
2878 Elf_Internal_Rela *rel;
2879 Elf_Internal_Rela *relend;
2880 int num_relocs;
2881 bfd_boolean is_vxworks_tls;
2882
2883 htab = _bfd_sparc_elf_hash_table (info);
2884 BFD_ASSERT (htab != NULL);
2885 symtab_hdr = &elf_symtab_hdr (input_bfd);
2886 sym_hashes = elf_sym_hashes (input_bfd);
2887 local_got_offsets = elf_local_got_offsets (input_bfd);
2888
2889 if (elf_hash_table (info)->hgot == NULL)
2890 got_base = 0;
2891 else
2892 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2893
2894 sreloc = elf_section_data (input_section)->sreloc;
2895 /* We have to handle relocations in vxworks .tls_vars sections
2896 specially, because the dynamic loader is 'weird'. */
2897 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
2898 && !strcmp (input_section->output_section->name,
2899 ".tls_vars"));
2900
2901 rel = relocs;
2902 if (ABI_64_P (output_bfd))
2903 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
2904 else
2905 num_relocs = input_section->reloc_count;
2906 relend = relocs + num_relocs;
2907 for (; rel < relend; rel++)
2908 {
2909 int r_type, tls_type;
2910 reloc_howto_type *howto;
2911 unsigned long r_symndx;
2912 struct elf_link_hash_entry *h;
2913 struct _bfd_sparc_elf_link_hash_entry *eh;
2914 Elf_Internal_Sym *sym;
2915 asection *sec;
2916 bfd_vma relocation, off;
2917 bfd_reloc_status_type r;
2918 bfd_boolean is_plt = FALSE;
2919 bfd_boolean unresolved_reloc;
2920 bfd_boolean resolved_to_zero;
2921 bfd_boolean relative_reloc;
2922
2923 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2924 if (r_type == R_SPARC_GNU_VTINHERIT
2925 || r_type == R_SPARC_GNU_VTENTRY)
2926 continue;
2927
2928 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2929 {
2930 bfd_set_error (bfd_error_bad_value);
2931 return FALSE;
2932 }
2933
2934 howto = _bfd_sparc_elf_howto_table + r_type;
2935 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2936 h = NULL;
2937 sym = NULL;
2938 sec = NULL;
2939 unresolved_reloc = FALSE;
2940 if (r_symndx < symtab_hdr->sh_info)
2941 {
2942 sym = local_syms + r_symndx;
2943 sec = local_sections[r_symndx];
2944 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2945
2946 if (!bfd_link_relocatable (info)
2947 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2948 {
2949 /* Relocate against local STT_GNU_IFUNC symbol. */
2950 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
2951 rel, FALSE);
2952 if (h == NULL)
2953 abort ();
2954
2955 /* Set STT_GNU_IFUNC symbol value. */
2956 h->root.u.def.value = sym->st_value;
2957 h->root.u.def.section = sec;
2958 }
2959 }
2960 else
2961 {
2962 bfd_boolean warned, ignored;
2963
2964 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2965 r_symndx, symtab_hdr, sym_hashes,
2966 h, sec, relocation,
2967 unresolved_reloc, warned, ignored);
2968 if (warned)
2969 {
2970 /* To avoid generating warning messages about truncated
2971 relocations, set the relocation's address to be the same as
2972 the start of this section. */
2973 if (input_section->output_section != NULL)
2974 relocation = input_section->output_section->vma;
2975 else
2976 relocation = 0;
2977 }
2978 }
2979
2980 if (sec != NULL && discarded_section (sec))
2981 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2982 rel, 1, relend, howto, 0, contents);
2983
2984 if (bfd_link_relocatable (info))
2985 continue;
2986
2987 if (h != NULL
2988 && h->type == STT_GNU_IFUNC
2989 && h->def_regular)
2990 {
2991 asection *plt_sec;
2992 const char *name;
2993
2994 if ((input_section->flags & SEC_ALLOC) == 0
2995 || h->plt.offset == (bfd_vma) -1)
2996 abort ();
2997
2998 plt_sec = htab->elf.splt;
2999 if (! plt_sec)
3000 plt_sec =htab->elf.iplt;
3001
3002 switch (r_type)
3003 {
3004 case R_SPARC_GOTDATA_OP:
3005 continue;
3006
3007 case R_SPARC_GOTDATA_OP_HIX22:
3008 case R_SPARC_GOTDATA_OP_LOX10:
3009 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3010 ? R_SPARC_GOT22
3011 : R_SPARC_GOT10);
3012 howto = _bfd_sparc_elf_howto_table + r_type;
3013 /* Fall through. */
3014
3015 case R_SPARC_GOT10:
3016 case R_SPARC_GOT13:
3017 case R_SPARC_GOT22:
3018 if (htab->elf.sgot == NULL)
3019 abort ();
3020 off = h->got.offset;
3021 if (off == (bfd_vma) -1)
3022 abort();
3023 relocation = htab->elf.sgot->output_offset + off - got_base;
3024 goto do_relocation;
3025
3026 case R_SPARC_WPLT30:
3027 case R_SPARC_WDISP30:
3028 relocation = (plt_sec->output_section->vma
3029 + plt_sec->output_offset + h->plt.offset);
3030 goto do_relocation;
3031
3032 case R_SPARC_32:
3033 case R_SPARC_64:
3034 if (bfd_link_pic (info) && h->non_got_ref)
3035 {
3036 Elf_Internal_Rela outrel;
3037 bfd_vma offset;
3038
3039 offset = _bfd_elf_section_offset (output_bfd, info,
3040 input_section,
3041 rel->r_offset);
3042 if (offset == (bfd_vma) -1
3043 || offset == (bfd_vma) -2)
3044 abort();
3045
3046 outrel.r_offset = (input_section->output_section->vma
3047 + input_section->output_offset
3048 + offset);
3049
3050 if (h->dynindx == -1
3051 || h->forced_local
3052 || bfd_link_executable (info))
3053 {
3054 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3055 0, R_SPARC_IRELATIVE);
3056 outrel.r_addend = relocation + rel->r_addend;
3057 }
3058 else
3059 {
3060 if (h->dynindx == -1)
3061 abort();
3062 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3063 outrel.r_addend = rel->r_addend;
3064 }
3065
3066 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3067 continue;
3068 }
3069
3070 relocation = (plt_sec->output_section->vma
3071 + plt_sec->output_offset + h->plt.offset);
3072 goto do_relocation;
3073
3074 case R_SPARC_HI22:
3075 case R_SPARC_LO10:
3076 /* We should only see such relocs in static links. */
3077 if (bfd_link_pic (info))
3078 abort();
3079 relocation = (plt_sec->output_section->vma
3080 + plt_sec->output_offset + h->plt.offset);
3081 goto do_relocation;
3082
3083 default:
3084 if (h->root.root.string)
3085 name = h->root.root.string;
3086 else
3087 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3088 NULL);
3089 _bfd_error_handler
3090 /* xgettext:c-format */
3091 (_("%pB: relocation %s against STT_GNU_IFUNC "
3092 "symbol `%s' isn't handled by %s"), input_bfd,
3093 _bfd_sparc_elf_howto_table[r_type].name,
3094 name, __FUNCTION__);
3095 bfd_set_error (bfd_error_bad_value);
3096 return FALSE;
3097 }
3098 }
3099
3100 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
3101 resolved_to_zero = eh && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
3102
3103 switch (r_type)
3104 {
3105 case R_SPARC_GOTDATA_OP_HIX22:
3106 case R_SPARC_GOTDATA_OP_LOX10:
3107 if (gdop_relative_offset_ok (info, h, relocation))
3108 {
3109 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3110 ? R_SPARC_GOTDATA_HIX22
3111 : R_SPARC_GOTDATA_LOX10);
3112 howto = _bfd_sparc_elf_howto_table + r_type;
3113 }
3114 break;
3115
3116 case R_SPARC_GOTDATA_OP:
3117 if (gdop_relative_offset_ok (info, h, relocation))
3118 {
3119 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3120
3121 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3122 relocation = 0x80000000 | (insn & 0x3e07c01f);
3123 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3124
3125 /* If the symbol is global but not dynamic, an .rela.* slot has
3126 been allocated for it in the GOT so output R_SPARC_NONE here.
3127 See also the handling of other GOT relocations just below. */
3128 if (h != NULL
3129 && h->dynindx == -1
3130 && !h->forced_local
3131 && h->root.type != bfd_link_hash_undefweak
3132 && (h->got.offset & 1) == 0
3133 && bfd_link_pic (info))
3134 {
3135 asection *s = htab->elf.srelgot;
3136 Elf_Internal_Rela outrel;
3137
3138 BFD_ASSERT (s != NULL);
3139
3140 memset (&outrel, 0, sizeof outrel);
3141 sparc_elf_append_rela (output_bfd, s, &outrel);
3142 h->got.offset |= 1;
3143 }
3144 }
3145 continue;
3146 }
3147
3148 switch (r_type)
3149 {
3150 case R_SPARC_GOTDATA_HIX22:
3151 case R_SPARC_GOTDATA_LOX10:
3152 relocation = gdopoff (info, relocation);
3153 break;
3154
3155 case R_SPARC_GOTDATA_OP_HIX22:
3156 case R_SPARC_GOTDATA_OP_LOX10:
3157 case R_SPARC_GOT10:
3158 case R_SPARC_GOT13:
3159 case R_SPARC_GOT22:
3160 /* Relocation is to the entry for this symbol in the global
3161 offset table. */
3162 if (htab->elf.sgot == NULL)
3163 abort ();
3164
3165 relative_reloc = FALSE;
3166 if (h != NULL)
3167 {
3168 bfd_boolean dyn;
3169
3170 off = h->got.offset;
3171 BFD_ASSERT (off != (bfd_vma) -1);
3172 dyn = elf_hash_table (info)->dynamic_sections_created;
3173
3174 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3175 bfd_link_pic (info),
3176 h)
3177 || (bfd_link_pic (info)
3178 && SYMBOL_REFERENCES_LOCAL (info, h)))
3179 {
3180 /* This is actually a static link, or it is a
3181 -Bsymbolic link and the symbol is defined
3182 locally, or the symbol was forced to be local
3183 because of a version file. We must initialize
3184 this entry in the global offset table. Since the
3185 offset must always be a multiple of 8 for 64-bit
3186 and 4 for 32-bit, we use the least significant bit
3187 to record whether we have initialized it already.
3188
3189 When doing a dynamic link, we create a .rela.got
3190 relocation entry to initialize the value. This
3191 is done in the finish_dynamic_symbol routine. */
3192 if ((off & 1) != 0)
3193 off &= ~1;
3194 else
3195 {
3196 /* If this symbol isn't dynamic in PIC mode, treat it
3197 like a local symbol in PIC mode below. */
3198 if (h->dynindx == -1
3199 && !h->forced_local
3200 && h->root.type != bfd_link_hash_undefweak
3201 && bfd_link_pic (info))
3202 relative_reloc = TRUE;
3203 else
3204 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3205 htab->elf.sgot->contents + off);
3206 h->got.offset |= 1;
3207 }
3208 }
3209 else
3210 unresolved_reloc = FALSE;
3211 }
3212 else
3213 {
3214 BFD_ASSERT (local_got_offsets != NULL
3215 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3216
3217 off = local_got_offsets[r_symndx];
3218
3219 /* The offset must always be a multiple of 8 on 64-bit and
3220 4 on 32-bit. We use the least significant bit to record
3221 whether we have already processed this entry. */
3222 if ((off & 1) != 0)
3223 off &= ~1;
3224 else
3225 {
3226 /* For a local symbol in PIC mode, we need to generate a
3227 R_SPARC_RELATIVE reloc for the dynamic linker. */
3228 if (bfd_link_pic (info))
3229 relative_reloc = TRUE;
3230 else
3231 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3232 htab->elf.sgot->contents + off);
3233 local_got_offsets[r_symndx] |= 1;
3234 }
3235 }
3236
3237 if (relative_reloc)
3238 {
3239 asection *s = htab->elf.srelgot;
3240 Elf_Internal_Rela outrel;
3241
3242 BFD_ASSERT (s != NULL);
3243
3244 outrel.r_offset = (htab->elf.sgot->output_section->vma
3245 + htab->elf.sgot->output_offset
3246 + off);
3247 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3248 0, R_SPARC_RELATIVE);
3249 outrel.r_addend = relocation;
3250 sparc_elf_append_rela (output_bfd, s, &outrel);
3251 /* Versions of glibc ld.so at least up to 2.26 wrongly
3252 add the section contents to the value calculated for
3253 a RELATIVE reloc. Zero the contents to work around
3254 this bug. */
3255 relocation = 0;
3256 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3257 htab->elf.sgot->contents + off);
3258 }
3259
3260 relocation = htab->elf.sgot->output_offset + off - got_base;
3261 break;
3262
3263 case R_SPARC_PLT32:
3264 case R_SPARC_PLT64:
3265 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3266 {
3267 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3268 goto r_sparc_plt32;
3269 }
3270 /* Fall through. */
3271
3272 case R_SPARC_WPLT30:
3273 case R_SPARC_HIPLT22:
3274 case R_SPARC_LOPLT10:
3275 case R_SPARC_PCPLT32:
3276 case R_SPARC_PCPLT22:
3277 case R_SPARC_PCPLT10:
3278 r_sparc_wplt30:
3279 /* Relocation is to the entry for this symbol in the
3280 procedure linkage table. */
3281
3282 if (! ABI_64_P (output_bfd))
3283 {
3284 /* The Solaris native assembler will generate a WPLT30 reloc
3285 for a local symbol if you assemble a call from one
3286 section to another when using -K pic. We treat it as
3287 WDISP30. */
3288 if (h == NULL)
3289 break;
3290 }
3291 /* PR 7027: We need similar behaviour for 64-bit binaries. */
3292 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3293 break;
3294 else
3295 {
3296 BFD_ASSERT (h != NULL);
3297 }
3298
3299 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3300 {
3301 /* We didn't make a PLT entry for this symbol. This
3302 happens when statically linking PIC code, or when
3303 using -Bsymbolic. */
3304 break;
3305 }
3306
3307 relocation = (htab->elf.splt->output_section->vma
3308 + htab->elf.splt->output_offset
3309 + h->plt.offset);
3310 unresolved_reloc = FALSE;
3311 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3312 {
3313 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3314 is_plt = TRUE;
3315 goto r_sparc_plt32;
3316 }
3317 break;
3318
3319 case R_SPARC_PC10:
3320 case R_SPARC_PC22:
3321 case R_SPARC_PC_HH22:
3322 case R_SPARC_PC_HM10:
3323 case R_SPARC_PC_LM22:
3324 if (h != NULL
3325 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3326 break;
3327 /* Fall through. */
3328 case R_SPARC_DISP8:
3329 case R_SPARC_DISP16:
3330 case R_SPARC_DISP32:
3331 case R_SPARC_DISP64:
3332 case R_SPARC_WDISP30:
3333 case R_SPARC_WDISP22:
3334 case R_SPARC_WDISP19:
3335 case R_SPARC_WDISP16:
3336 case R_SPARC_WDISP10:
3337 case R_SPARC_8:
3338 case R_SPARC_16:
3339 case R_SPARC_32:
3340 case R_SPARC_HI22:
3341 case R_SPARC_22:
3342 case R_SPARC_13:
3343 case R_SPARC_LO10:
3344 case R_SPARC_UA16:
3345 case R_SPARC_UA32:
3346 case R_SPARC_10:
3347 case R_SPARC_11:
3348 case R_SPARC_64:
3349 case R_SPARC_OLO10:
3350 case R_SPARC_HH22:
3351 case R_SPARC_HM10:
3352 case R_SPARC_LM22:
3353 case R_SPARC_7:
3354 case R_SPARC_5:
3355 case R_SPARC_6:
3356 case R_SPARC_HIX22:
3357 case R_SPARC_LOX10:
3358 case R_SPARC_H44:
3359 case R_SPARC_M44:
3360 case R_SPARC_L44:
3361 case R_SPARC_H34:
3362 case R_SPARC_UA64:
3363 r_sparc_plt32:
3364 if ((input_section->flags & SEC_ALLOC) == 0 || is_vxworks_tls)
3365 break;
3366
3367 /* Copy dynamic function pointer relocations. Don't generate
3368 dynamic relocations against resolved undefined weak symbols
3369 in PIE. */
3370 if ((bfd_link_pic (info)
3371 && (h == NULL
3372 || !(h->root.type == bfd_link_hash_undefweak
3373 && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
3374 || resolved_to_zero)))
3375 && (! howto->pc_relative
3376 || !SYMBOL_CALLS_LOCAL (info, h)))
3377 || (!bfd_link_pic (info)
3378 && h != NULL
3379 && h->dynindx != -1
3380 && !h->non_got_ref
3381 && ((h->def_dynamic
3382 && !h->def_regular)
3383 || (h->root.type == bfd_link_hash_undefweak
3384 && !resolved_to_zero)
3385 || h->root.type == bfd_link_hash_undefined)))
3386 {
3387 Elf_Internal_Rela outrel;
3388 bfd_boolean skip, relocate = FALSE;
3389
3390 /* When generating a shared object, these relocations
3391 are copied into the output file to be resolved at run
3392 time. */
3393
3394 BFD_ASSERT (sreloc != NULL);
3395
3396 skip = FALSE;
3397
3398 outrel.r_offset =
3399 _bfd_elf_section_offset (output_bfd, info, input_section,
3400 rel->r_offset);
3401 if (outrel.r_offset == (bfd_vma) -1)
3402 skip = TRUE;
3403 else if (outrel.r_offset == (bfd_vma) -2)
3404 skip = TRUE, relocate = TRUE;
3405 outrel.r_offset += (input_section->output_section->vma
3406 + input_section->output_offset);
3407
3408 /* Optimize unaligned reloc usage now that we know where
3409 it finally resides. */
3410 switch (r_type)
3411 {
3412 case R_SPARC_16:
3413 if (outrel.r_offset & 1)
3414 r_type = R_SPARC_UA16;
3415 break;
3416 case R_SPARC_UA16:
3417 if (!(outrel.r_offset & 1))
3418 r_type = R_SPARC_16;
3419 break;
3420 case R_SPARC_32:
3421 if (outrel.r_offset & 3)
3422 r_type = R_SPARC_UA32;
3423 break;
3424 case R_SPARC_UA32:
3425 if (!(outrel.r_offset & 3))
3426 r_type = R_SPARC_32;
3427 break;
3428 case R_SPARC_64:
3429 if (outrel.r_offset & 7)
3430 r_type = R_SPARC_UA64;
3431 break;
3432 case R_SPARC_UA64:
3433 if (!(outrel.r_offset & 7))
3434 r_type = R_SPARC_64;
3435 break;
3436 case R_SPARC_DISP8:
3437 case R_SPARC_DISP16:
3438 case R_SPARC_DISP32:
3439 case R_SPARC_DISP64:
3440 /* If the symbol is not dynamic, we should not keep
3441 a dynamic relocation. But an .rela.* slot has been
3442 allocated for it, output R_SPARC_NONE.
3443 FIXME: Add code tracking needed dynamic relocs as
3444 e.g. i386 has. */
3445 if (h->dynindx == -1)
3446 skip = TRUE, relocate = TRUE;
3447 break;
3448 }
3449
3450 if (skip)
3451 memset (&outrel, 0, sizeof outrel);
3452 /* h->dynindx may be -1 if the symbol was marked to
3453 become local. */
3454 else if (h != NULL
3455 && h->dynindx != -1
3456 && (_bfd_sparc_elf_howto_table[r_type].pc_relative
3457 || !bfd_link_pic (info)
3458 || !SYMBOLIC_BIND (info, h)
3459 || !h->def_regular))
3460 {
3461 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3462 outrel.r_addend = rel->r_addend;
3463 }
3464 else
3465 {
3466 if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3467 || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
3468 {
3469 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3470 0, R_SPARC_RELATIVE);
3471 outrel.r_addend = relocation + rel->r_addend;
3472 }
3473 else
3474 {
3475 long indx;
3476
3477 outrel.r_addend = relocation + rel->r_addend;
3478
3479 if (is_plt)
3480 sec = htab->elf.splt;
3481
3482 if (bfd_is_abs_section (sec))
3483 indx = 0;
3484 else if (sec == NULL || sec->owner == NULL)
3485 {
3486 bfd_set_error (bfd_error_bad_value);
3487 return FALSE;
3488 }
3489 else
3490 {
3491 asection *osec;
3492
3493 /* We are turning this relocation into one
3494 against a section symbol. It would be
3495 proper to subtract the symbol's value,
3496 osec->vma, from the emitted reloc addend,
3497 but ld.so expects buggy relocs. */
3498 osec = sec->output_section;
3499 indx = elf_section_data (osec)->dynindx;
3500
3501 if (indx == 0)
3502 {
3503 osec = htab->elf.text_index_section;
3504 indx = elf_section_data (osec)->dynindx;
3505 }
3506
3507 /* FIXME: we really should be able to link non-pic
3508 shared libraries. */
3509 if (indx == 0)
3510 {
3511 BFD_FAIL ();
3512 _bfd_error_handler
3513 (_("%pB: probably compiled without -fPIC?"),
3514 input_bfd);
3515 bfd_set_error (bfd_error_bad_value);
3516 return FALSE;
3517 }
3518 }
3519
3520 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3521 r_type);
3522 }
3523 }
3524
3525 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3526
3527 /* This reloc will be computed at runtime, so there's no
3528 need to do anything now. */
3529 if (! relocate)
3530 continue;
3531 }
3532 break;
3533
3534 case R_SPARC_TLS_GD_HI22:
3535 case R_SPARC_TLS_GD_LO10:
3536 case R_SPARC_TLS_IE_HI22:
3537 case R_SPARC_TLS_IE_LO10:
3538 r_type = sparc_elf_tls_transition (info, input_bfd, r_type,
3539 h == NULL || h->dynindx == -1);
3540 if (r_type == R_SPARC_REV32)
3541 break;
3542 if (h != NULL)
3543 tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3544 else if (local_got_offsets)
3545 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3546 else
3547 tls_type = GOT_UNKNOWN;
3548 if (tls_type == GOT_TLS_IE)
3549 switch (r_type)
3550 {
3551 case R_SPARC_TLS_GD_HI22:
3552 r_type = R_SPARC_TLS_IE_HI22;
3553 break;
3554 case R_SPARC_TLS_GD_LO10:
3555 r_type = R_SPARC_TLS_IE_LO10;
3556 break;
3557 }
3558
3559 if (r_type == R_SPARC_TLS_LE_HIX22)
3560 {
3561 relocation = tpoff (info, relocation);
3562 break;
3563 }
3564 if (r_type == R_SPARC_TLS_LE_LOX10)
3565 {
3566 /* Change add into xor. */
3567 relocation = tpoff (info, relocation);
3568 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3569 contents + rel->r_offset)
3570 | 0x80182000), contents + rel->r_offset);
3571 break;
3572 }
3573
3574 if (h != NULL)
3575 {
3576 off = h->got.offset;
3577 h->got.offset |= 1;
3578 }
3579 else
3580 {
3581 BFD_ASSERT (local_got_offsets != NULL);
3582 off = local_got_offsets[r_symndx];
3583 local_got_offsets[r_symndx] |= 1;
3584 }
3585
3586 r_sparc_tlsldm:
3587 if (htab->elf.sgot == NULL)
3588 abort ();
3589
3590 if ((off & 1) != 0)
3591 off &= ~1;
3592 else
3593 {
3594 Elf_Internal_Rela outrel;
3595 int dr_type, indx;
3596
3597 if (htab->elf.srelgot == NULL)
3598 abort ();
3599
3600 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3601 htab->elf.sgot->contents + off);
3602 outrel.r_offset = (htab->elf.sgot->output_section->vma
3603 + htab->elf.sgot->output_offset + off);
3604 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3605 if (r_type == R_SPARC_TLS_IE_HI22
3606 || r_type == R_SPARC_TLS_IE_LO10)
3607 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3608 else
3609 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3610 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3611 outrel.r_addend = relocation - dtpoff_base (info);
3612 else
3613 outrel.r_addend = 0;
3614 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
3615 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3616
3617 if (r_type == R_SPARC_TLS_GD_HI22
3618 || r_type == R_SPARC_TLS_GD_LO10)
3619 {
3620 if (indx == 0)
3621 {
3622 BFD_ASSERT (! unresolved_reloc);
3623 SPARC_ELF_PUT_WORD (htab, output_bfd,
3624 relocation - dtpoff_base (info),
3625 (htab->elf.sgot->contents + off
3626 + SPARC_ELF_WORD_BYTES (htab)));
3627 }
3628 else
3629 {
3630 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3631 (htab->elf.sgot->contents + off
3632 + SPARC_ELF_WORD_BYTES (htab)));
3633 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3634 SPARC_ELF_DTPOFF_RELOC (htab));
3635 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
3636 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
3637 &outrel);
3638 }
3639 }
3640 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3641 {
3642 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3643 (htab->elf.sgot->contents + off
3644 + SPARC_ELF_WORD_BYTES (htab)));
3645 }
3646 }
3647
3648 if (off >= (bfd_vma) -2)
3649 abort ();
3650
3651 relocation = htab->elf.sgot->output_offset + off - got_base;
3652 unresolved_reloc = FALSE;
3653 howto = _bfd_sparc_elf_howto_table + r_type;
3654 break;
3655
3656 case R_SPARC_TLS_LDM_HI22:
3657 case R_SPARC_TLS_LDM_LO10:
3658 /* LD -> LE */
3659 if (bfd_link_executable (info))
3660 {
3661 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3662 continue;
3663 }
3664 off = htab->tls_ldm_got.offset;
3665 htab->tls_ldm_got.offset |= 1;
3666 goto r_sparc_tlsldm;
3667
3668 case R_SPARC_TLS_LDO_HIX22:
3669 case R_SPARC_TLS_LDO_LOX10:
3670 /* LD -> LE */
3671 if (bfd_link_executable (info))
3672 {
3673 if (r_type == R_SPARC_TLS_LDO_HIX22)
3674 r_type = R_SPARC_TLS_LE_HIX22;
3675 else
3676 r_type = R_SPARC_TLS_LE_LOX10;
3677 }
3678 else
3679 {
3680 relocation -= dtpoff_base (info);
3681 break;
3682 }
3683 /* Fall through. */
3684
3685 case R_SPARC_TLS_LE_HIX22:
3686 case R_SPARC_TLS_LE_LOX10:
3687 if (!bfd_link_executable (info))
3688 {
3689 Elf_Internal_Rela outrel;
3690 bfd_vma offset
3691 = _bfd_elf_section_offset (output_bfd, info, input_section,
3692 rel->r_offset);
3693 if (offset == (bfd_vma) -1 || offset == (bfd_vma) -2)
3694 memset (&outrel, 0, sizeof outrel);
3695 else
3696 {
3697 outrel.r_offset = offset
3698 + input_section->output_section->vma
3699 + input_section->output_offset;
3700 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3701 outrel.r_addend
3702 = relocation - dtpoff_base (info) + rel->r_addend;
3703 }
3704
3705 BFD_ASSERT (sreloc != NULL);
3706 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3707 continue;
3708 }
3709 relocation = tpoff (info, relocation);
3710 break;
3711
3712 case R_SPARC_TLS_LDM_CALL:
3713 /* LD -> LE */
3714 if (bfd_link_executable (info))
3715 {
3716 /* mov %g0, %o0 */
3717 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3718 continue;
3719 }
3720 /* Fall through */
3721
3722 case R_SPARC_TLS_GD_CALL:
3723 if (h != NULL)
3724 tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3725 else if (local_got_offsets)
3726 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3727 else
3728 tls_type = GOT_UNKNOWN;
3729 /* GD -> IE or LE */
3730 if (bfd_link_executable (info)
3731 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3732 {
3733 Elf_Internal_Rela *rel2;
3734 bfd_vma insn;
3735
3736 /* GD -> LE */
3737 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
3738 {
3739 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3740 continue;
3741 }
3742
3743 /* GD -> IE */
3744 if (rel + 1 < relend
3745 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3746 && rel[1].r_offset == rel->r_offset + 4
3747 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3748 && (((insn = bfd_get_32 (input_bfd,
3749 contents + rel[1].r_offset))
3750 >> 25) & 0x1f) == 8)
3751 {
3752 /* We have
3753 call __tls_get_addr, %tgd_call(foo)
3754 add %reg1, %reg2, %o0, %tgd_add(foo)
3755 and change it into IE:
3756 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3757 add %g7, %o0, %o0, %tie_add(foo).
3758 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3759 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3760 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3761 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3762 contents + rel->r_offset);
3763 bfd_put_32 (output_bfd, 0x9001c008,
3764 contents + rel->r_offset + 4);
3765 rel++;
3766 continue;
3767 }
3768
3769 /* We cannot just overwrite the delay slot instruction,
3770 as it might be what puts the %o0 argument to
3771 __tls_get_addr into place. So we have to transpose
3772 the delay slot with the add we patch in. */
3773 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3774 bfd_put_32 (output_bfd, insn,
3775 contents + rel->r_offset);
3776 bfd_put_32 (output_bfd, 0x9001c008,
3777 contents + rel->r_offset + 4);
3778
3779 rel2 = rel;
3780 while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3781 rel->r_offset + 4))
3782 != NULL)
3783 {
3784 /* If the instruction we moved has a relocation attached to
3785 it, adjust the offset so that it will apply to the correct
3786 instruction. */
3787 rel2->r_offset -= 4;
3788 }
3789 continue;
3790 }
3791
3792 h = (struct elf_link_hash_entry *)
3793 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3794 FALSE, TRUE);
3795 BFD_ASSERT (h != NULL);
3796 r_type = R_SPARC_WPLT30;
3797 howto = _bfd_sparc_elf_howto_table + r_type;
3798 goto r_sparc_wplt30;
3799
3800 case R_SPARC_TLS_GD_ADD:
3801 if (h != NULL)
3802 tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3803 else if (local_got_offsets)
3804 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3805 else
3806 tls_type = GOT_UNKNOWN;
3807 /* GD -> IE or LE */
3808 if (bfd_link_executable (info) || tls_type == GOT_TLS_IE)
3809 {
3810 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3811 changed into IE:
3812 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3813 or LE:
3814 add %g7, %reg2, %reg3. */
3815 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3816 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
3817 relocation = (insn & ~0x7c000) | 0x1c000;
3818 else
3819 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
3820 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3821 }
3822 continue;
3823
3824 case R_SPARC_TLS_LDM_ADD:
3825 /* LD -> LE */
3826 if (bfd_link_executable (info))
3827 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3828 continue;
3829
3830 case R_SPARC_TLS_LDO_ADD:
3831 /* LD -> LE */
3832 if (bfd_link_executable (info))
3833 {
3834 /* Change rs1 into %g7. */
3835 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3836 insn = (insn & ~0x7c000) | 0x1c000;
3837 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3838 }
3839 continue;
3840
3841 case R_SPARC_TLS_IE_LD:
3842 case R_SPARC_TLS_IE_LDX:
3843 /* IE -> LE */
3844 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
3845 {
3846 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3847 int rs2 = insn & 0x1f;
3848 int rd = (insn >> 25) & 0x1f;
3849
3850 if (rs2 == rd)
3851 relocation = SPARC_NOP;
3852 else
3853 relocation = 0x80100000 | (insn & 0x3e00001f);
3854 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3855 }
3856 continue;
3857
3858 case R_SPARC_TLS_IE_ADD:
3859 /* Totally useless relocation. */
3860 continue;
3861
3862 case R_SPARC_TLS_DTPOFF32:
3863 case R_SPARC_TLS_DTPOFF64:
3864 relocation -= dtpoff_base (info);
3865 break;
3866
3867 default:
3868 break;
3869 }
3870
3871 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3872 because such sections are not SEC_ALLOC and thus ld.so will
3873 not process them. */
3874 if (unresolved_reloc
3875 && !((input_section->flags & SEC_DEBUGGING) != 0
3876 && h->def_dynamic)
3877 && _bfd_elf_section_offset (output_bfd, info, input_section,
3878 rel->r_offset) != (bfd_vma) -1)
3879 _bfd_error_handler
3880 /* xgettext:c-format */
3881 (_("%pB(%pA+%#" PRIx64 "): "
3882 "unresolvable %s relocation against symbol `%s'"),
3883 input_bfd,
3884 input_section,
3885 (uint64_t) rel->r_offset,
3886 howto->name,
3887 h->root.root.string);
3888
3889 r = bfd_reloc_continue;
3890 if (r_type == R_SPARC_OLO10)
3891 {
3892 bfd_vma x;
3893
3894 if (! ABI_64_P (output_bfd))
3895 abort ();
3896
3897 relocation += rel->r_addend;
3898 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3899
3900 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3901 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3902 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3903
3904 r = bfd_check_overflow (howto->complain_on_overflow,
3905 howto->bitsize, howto->rightshift,
3906 bfd_arch_bits_per_address (input_bfd),
3907 relocation);
3908 }
3909 else if (r_type == R_SPARC_WDISP16)
3910 {
3911 bfd_vma x;
3912
3913 relocation += rel->r_addend;
3914 relocation -= (input_section->output_section->vma
3915 + input_section->output_offset);
3916 relocation -= rel->r_offset;
3917
3918 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3919 x |= ((((relocation >> 2) & 0xc000) << 6)
3920 | ((relocation >> 2) & 0x3fff));
3921 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3922
3923 r = bfd_check_overflow (howto->complain_on_overflow,
3924 howto->bitsize, howto->rightshift,
3925 bfd_arch_bits_per_address (input_bfd),
3926 relocation);
3927 }
3928 else if (r_type == R_SPARC_WDISP10)
3929 {
3930 bfd_vma x;
3931
3932 relocation += rel->r_addend;
3933 relocation -= (input_section->output_section->vma
3934 + input_section->output_offset);
3935 relocation -= rel->r_offset;
3936
3937 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3938 x |= ((((relocation >> 2) & 0x300) << 11)
3939 | (((relocation >> 2) & 0xff) << 5));
3940 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3941
3942 r = bfd_check_overflow (howto->complain_on_overflow,
3943 howto->bitsize, howto->rightshift,
3944 bfd_arch_bits_per_address (input_bfd),
3945 relocation);
3946 }
3947 else if (r_type == R_SPARC_REV32)
3948 {
3949 bfd_vma x;
3950
3951 relocation = relocation + rel->r_addend;
3952
3953 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3954 x = x + relocation;
3955 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
3956 r = bfd_reloc_ok;
3957 }
3958 else if (r_type == R_SPARC_TLS_LDO_HIX22
3959 || r_type == R_SPARC_TLS_LE_HIX22)
3960 {
3961 bfd_vma x;
3962
3963 relocation += rel->r_addend;
3964 if (r_type == R_SPARC_TLS_LE_HIX22)
3965 relocation ^= MINUS_ONE;
3966
3967 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3968 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3969 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3970 r = bfd_reloc_ok;
3971 }
3972 else if (r_type == R_SPARC_TLS_LDO_LOX10
3973 || r_type == R_SPARC_TLS_LE_LOX10)
3974 {
3975 bfd_vma x;
3976
3977 relocation += rel->r_addend;
3978 relocation &= 0x3ff;
3979 if (r_type == R_SPARC_TLS_LE_LOX10)
3980 relocation |= 0x1c00;
3981
3982 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3983 x = (x & ~(bfd_vma) 0x1fff) | relocation;
3984 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3985
3986 r = bfd_reloc_ok;
3987 }
3988 else if (r_type == R_SPARC_HIX22
3989 || r_type == R_SPARC_GOTDATA_HIX22
3990 || r_type == R_SPARC_GOTDATA_OP_HIX22)
3991 {
3992 bfd_vma x;
3993
3994 relocation += rel->r_addend;
3995 if (r_type == R_SPARC_HIX22
3996 || (bfd_signed_vma) relocation < 0)
3997 relocation = relocation ^ MINUS_ONE;
3998
3999 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4000 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4001 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4002
4003 r = bfd_check_overflow (howto->complain_on_overflow,
4004 howto->bitsize, howto->rightshift,
4005 bfd_arch_bits_per_address (input_bfd),
4006 relocation);
4007 }
4008 else if (r_type == R_SPARC_LOX10
4009 || r_type == R_SPARC_GOTDATA_LOX10
4010 || r_type == R_SPARC_GOTDATA_OP_LOX10)
4011 {
4012 bfd_vma x;
4013
4014 relocation += rel->r_addend;
4015 if (r_type == R_SPARC_LOX10
4016 || (bfd_signed_vma) relocation < 0)
4017 relocation = (relocation & 0x3ff) | 0x1c00;
4018 else
4019 relocation = (relocation & 0x3ff);
4020
4021 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4022 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4023 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4024
4025 r = bfd_reloc_ok;
4026 }
4027 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
4028 && sec_do_relax (input_section)
4029 && rel->r_offset + 4 < input_section->size)
4030 {
4031 #define G0 0
4032 #define O7 15
4033 #define XCC (2 << 20)
4034 #define COND(x) (((x)&0xf)<<25)
4035 #define CONDA COND(0x8)
4036 #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
4037 #define INSN_BA (F2(0,2) | CONDA)
4038 #define INSN_OR F3(2, 0x2, 0)
4039 #define INSN_NOP F2(0,4)
4040
4041 bfd_vma x, y;
4042
4043 /* If the instruction is a call with either:
4044 restore
4045 arithmetic instruction with rd == %o7
4046 where rs1 != %o7 and rs2 if it is register != %o7
4047 then we can optimize if the call destination is near
4048 by changing the call into a branch always. */
4049 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4050 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
4051 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
4052 {
4053 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
4054 || ((y & OP3(0x28)) == 0 /* arithmetic */
4055 && (y & RD(~0)) == RD(O7)))
4056 && (y & RS1(~0)) != RS1(O7)
4057 && ((y & F3I(~0))
4058 || (y & RS2(~0)) != RS2(O7)))
4059 {
4060 bfd_vma reloc;
4061
4062 reloc = relocation + rel->r_addend - rel->r_offset;
4063 reloc -= (input_section->output_section->vma
4064 + input_section->output_offset);
4065
4066 /* Ensure the branch fits into simm22. */
4067 if ((reloc & 3) == 0
4068 && ((reloc & ~(bfd_vma)0x7fffff) == 0
4069 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4070 {
4071 reloc >>= 2;
4072
4073 /* Check whether it fits into simm19. */
4074 if (((reloc & 0x3c0000) == 0
4075 || (reloc & 0x3c0000) == 0x3c0000)
4076 && (ABI_64_P (output_bfd)
4077 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4078 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4079 else
4080 x = INSN_BA | (reloc & 0x3fffff); /* ba */
4081 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4082 r = bfd_reloc_ok;
4083 if (rel->r_offset >= 4
4084 && (y & (0xffffffff ^ RS1(~0)))
4085 == (INSN_OR | RD(O7) | RS2(G0)))
4086 {
4087 bfd_vma z;
4088 unsigned int reg;
4089
4090 z = bfd_get_32 (input_bfd,
4091 contents + rel->r_offset - 4);
4092 if ((z & (0xffffffff ^ RD(~0)))
4093 != (INSN_OR | RS1(O7) | RS2(G0)))
4094 continue;
4095
4096 /* The sequence was
4097 or %o7, %g0, %rN
4098 call foo
4099 or %rN, %g0, %o7
4100
4101 If call foo was replaced with ba, replace
4102 or %rN, %g0, %o7 with nop. */
4103
4104 reg = (y & RS1(~0)) >> 14;
4105 if (reg != ((z & RD(~0)) >> 25)
4106 || reg == G0 || reg == O7)
4107 continue;
4108
4109 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4110 contents + rel->r_offset + 4);
4111 }
4112
4113 }
4114 }
4115 }
4116 }
4117
4118 if (r == bfd_reloc_continue)
4119 {
4120 do_relocation:
4121 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4122 contents, rel->r_offset,
4123 relocation, rel->r_addend);
4124 }
4125 if (r != bfd_reloc_ok)
4126 {
4127 switch (r)
4128 {
4129 default:
4130 case bfd_reloc_outofrange:
4131 abort ();
4132 case bfd_reloc_overflow:
4133 {
4134 const char *name;
4135
4136 /* The Solaris native linker silently disregards overflows.
4137 We don't, but this breaks stabs debugging info, whose
4138 relocations are only 32-bits wide. Ignore overflows in
4139 this case and also for discarded entries. */
4140 if ((r_type == R_SPARC_32
4141 || r_type == R_SPARC_UA32
4142 || r_type == R_SPARC_DISP32)
4143 && (((input_section->flags & SEC_DEBUGGING) != 0
4144 && strcmp (bfd_section_name (input_bfd,
4145 input_section),
4146 ".stab") == 0)
4147 || _bfd_elf_section_offset (output_bfd, info,
4148 input_section,
4149 rel->r_offset)
4150 == (bfd_vma)-1))
4151 break;
4152
4153 if (h != NULL)
4154 {
4155 /* Assume this is a call protected by other code that
4156 detect the symbol is undefined. If this is the case,
4157 we can safely ignore the overflow. If not, the
4158 program is hosed anyway, and a little warning isn't
4159 going to help. */
4160 if (h->root.type == bfd_link_hash_undefweak
4161 && howto->pc_relative)
4162 break;
4163
4164 name = NULL;
4165 }
4166 else
4167 {
4168 name = bfd_elf_string_from_elf_section (input_bfd,
4169 symtab_hdr->sh_link,
4170 sym->st_name);
4171 if (name == NULL)
4172 return FALSE;
4173 if (*name == '\0')
4174 name = bfd_section_name (input_bfd, sec);
4175 }
4176 (*info->callbacks->reloc_overflow)
4177 (info, (h ? &h->root : NULL), name, howto->name,
4178 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4179 }
4180 break;
4181 }
4182 }
4183 }
4184
4185 return TRUE;
4186 }
4187
4188 /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4189 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4190 is the offset of the associated .got.plt entry from
4191 _GLOBAL_OFFSET_TABLE_. */
4192
4193 static void
4194 sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4195 bfd_vma plt_offset, bfd_vma plt_index,
4196 bfd_vma got_offset)
4197 {
4198 bfd_vma got_base;
4199 const bfd_vma *plt_entry;
4200 struct _bfd_sparc_elf_link_hash_table *htab;
4201 bfd_byte *loc;
4202 Elf_Internal_Rela rela;
4203
4204 htab = _bfd_sparc_elf_hash_table (info);
4205 BFD_ASSERT (htab != NULL);
4206
4207 if (bfd_link_pic (info))
4208 {
4209 plt_entry = sparc_vxworks_shared_plt_entry;
4210 got_base = 0;
4211 }
4212 else
4213 {
4214 plt_entry = sparc_vxworks_exec_plt_entry;
4215 got_base = (htab->elf.hgot->root.u.def.value
4216 + htab->elf.hgot->root.u.def.section->output_offset
4217 + htab->elf.hgot->root.u.def.section->output_section->vma);
4218 }
4219
4220 /* Fill in the entry in the procedure linkage table. */
4221 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
4222 htab->elf.splt->contents + plt_offset);
4223 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
4224 htab->elf.splt->contents + plt_offset + 4);
4225 bfd_put_32 (output_bfd, plt_entry[2],
4226 htab->elf.splt->contents + plt_offset + 8);
4227 bfd_put_32 (output_bfd, plt_entry[3],
4228 htab->elf.splt->contents + plt_offset + 12);
4229 bfd_put_32 (output_bfd, plt_entry[4],
4230 htab->elf.splt->contents + plt_offset + 16);
4231 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
4232 htab->elf.splt->contents + plt_offset + 20);
4233 /* PC-relative displacement for a branch to the start of
4234 the PLT section. */
4235 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4236 & 0x003fffff),
4237 htab->elf.splt->contents + plt_offset + 24);
4238 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
4239 htab->elf.splt->contents + plt_offset + 28);
4240
4241 /* Fill in the .got.plt entry, pointing initially at the
4242 second half of the PLT entry. */
4243 BFD_ASSERT (htab->elf.sgotplt != NULL);
4244 bfd_put_32 (output_bfd,
4245 htab->elf.splt->output_section->vma
4246 + htab->elf.splt->output_offset
4247 + plt_offset + 20,
4248 htab->elf.sgotplt->contents + got_offset);
4249
4250 /* Add relocations to .rela.plt.unloaded. */
4251 if (!bfd_link_pic (info))
4252 {
4253 loc = (htab->srelplt2->contents
4254 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4255
4256 /* Relocate the initial sethi. */
4257 rela.r_offset = (htab->elf.splt->output_section->vma
4258 + htab->elf.splt->output_offset
4259 + plt_offset);
4260 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4261 rela.r_addend = got_offset;
4262 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4263 loc += sizeof (Elf32_External_Rela);
4264
4265 /* Likewise the following or. */
4266 rela.r_offset += 4;
4267 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4268 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4269 loc += sizeof (Elf32_External_Rela);
4270
4271 /* Relocate the .got.plt entry. */
4272 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4273 + htab->elf.sgotplt->output_offset
4274 + got_offset);
4275 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4276 rela.r_addend = plt_offset + 20;
4277 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4278 }
4279 }
4280
4281 /* Finish up dynamic symbol handling. We set the contents of various
4282 dynamic sections here. */
4283
4284 bfd_boolean
4285 _bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4286 struct bfd_link_info *info,
4287 struct elf_link_hash_entry *h,
4288 Elf_Internal_Sym *sym)
4289 {
4290 struct _bfd_sparc_elf_link_hash_table *htab;
4291 const struct elf_backend_data *bed;
4292 struct _bfd_sparc_elf_link_hash_entry *eh;
4293 bfd_boolean resolved_to_zero;
4294
4295 htab = _bfd_sparc_elf_hash_table (info);
4296 BFD_ASSERT (htab != NULL);
4297 bed = get_elf_backend_data (output_bfd);
4298
4299 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4300
4301 /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4302 resolved undefined weak symbols in executable so that their
4303 references have value 0 at run-time. */
4304 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
4305
4306 if (h->plt.offset != (bfd_vma) -1)
4307 {
4308 asection *splt;
4309 asection *srela;
4310 Elf_Internal_Rela rela;
4311 bfd_byte *loc;
4312 bfd_vma r_offset, got_offset;
4313 int rela_index;
4314
4315 /* When building a static executable, use .iplt and
4316 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4317 if (htab->elf.splt != NULL)
4318 {
4319 splt = htab->elf.splt;
4320 srela = htab->elf.srelplt;
4321 }
4322 else
4323 {
4324 splt = htab->elf.iplt;
4325 srela = htab->elf.irelplt;
4326 }
4327
4328 if (splt == NULL || srela == NULL)
4329 abort ();
4330
4331 /* Fill in the entry in the .rela.plt section. */
4332 if (htab->is_vxworks)
4333 {
4334 /* Work out the index of this PLT entry. */
4335 rela_index = ((h->plt.offset - htab->plt_header_size)
4336 / htab->plt_entry_size);
4337
4338 /* Calculate the offset of the associated .got.plt entry.
4339 The first three entries are reserved. */
4340 got_offset = (rela_index + 3) * 4;
4341
4342 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4343 rela_index, got_offset);
4344
4345
4346 /* On VxWorks, the relocation points to the .got.plt entry,
4347 not the .plt entry. */
4348 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4349 + htab->elf.sgotplt->output_offset
4350 + got_offset);
4351 rela.r_addend = 0;
4352 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4353 R_SPARC_JMP_SLOT);
4354 }
4355 else
4356 {
4357 bfd_boolean ifunc = FALSE;
4358
4359 /* Fill in the entry in the procedure linkage table. */
4360 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4361 h->plt.offset, splt->size,
4362 &r_offset);
4363
4364 if (h == NULL
4365 || h->dynindx == -1
4366 || ((bfd_link_executable (info)
4367 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4368 && h->def_regular
4369 && h->type == STT_GNU_IFUNC))
4370 {
4371 ifunc = TRUE;
4372 BFD_ASSERT (h == NULL
4373 || (h->type == STT_GNU_IFUNC
4374 && h->def_regular
4375 && (h->root.type == bfd_link_hash_defined
4376 || h->root.type == bfd_link_hash_defweak)));
4377 }
4378
4379 rela.r_offset = r_offset
4380 + (splt->output_section->vma + splt->output_offset);
4381 if (ABI_64_P (output_bfd)
4382 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
4383 {
4384 if (ifunc)
4385 {
4386 rela.r_addend = (h->root.u.def.section->output_section->vma
4387 + h->root.u.def.section->output_offset
4388 + h->root.u.def.value);
4389 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4390 R_SPARC_IRELATIVE);
4391 }
4392 else
4393 {
4394 rela.r_addend = (-(h->plt.offset + 4)
4395 - splt->output_section->vma
4396 - splt->output_offset);
4397 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4398 R_SPARC_JMP_SLOT);
4399 }
4400 }
4401 else
4402 {
4403 if (ifunc)
4404 {
4405 rela.r_addend = (h->root.u.def.section->output_section->vma
4406 + h->root.u.def.section->output_offset
4407 + h->root.u.def.value);
4408 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4409 R_SPARC_JMP_IREL);
4410 }
4411 else
4412 {
4413 rela.r_addend = 0;
4414 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4415 R_SPARC_JMP_SLOT);
4416 }
4417 }
4418 }
4419
4420 /* Adjust for the first 4 reserved elements in the .plt section
4421 when setting the offset in the .rela.plt section.
4422 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4423 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4424
4425 loc = srela->contents;
4426 loc += rela_index * bed->s->sizeof_rela;
4427 bed->s->swap_reloca_out (output_bfd, &rela, loc);
4428
4429 if (!resolved_to_zero && !h->def_regular)
4430 {
4431 /* Mark the symbol as undefined, rather than as defined in
4432 the .plt section. Leave the value alone. */
4433 sym->st_shndx = SHN_UNDEF;
4434 /* If the symbol is weak, we do need to clear the value.
4435 Otherwise, the PLT entry would provide a definition for
4436 the symbol even if the symbol wasn't defined anywhere,
4437 and so the symbol would never be NULL. */
4438 if (!h->ref_regular_nonweak)
4439 sym->st_value = 0;
4440 }
4441 }
4442
4443 /* Don't generate dynamic GOT relocation against resolved undefined weak
4444 symbols in an executable. */
4445 if (h->got.offset != (bfd_vma) -1
4446 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4447 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
4448 && !(h->root.type == bfd_link_hash_undefweak
4449 && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4450 || resolved_to_zero)))
4451 {
4452 asection *sgot;
4453 asection *srela;
4454 Elf_Internal_Rela rela;
4455
4456 /* This symbol has an entry in the GOT. Set it up. */
4457
4458 sgot = htab->elf.sgot;
4459 srela = htab->elf.srelgot;
4460 BFD_ASSERT (sgot != NULL && srela != NULL);
4461
4462 rela.r_offset = (sgot->output_section->vma
4463 + sgot->output_offset
4464 + (h->got.offset &~ (bfd_vma) 1));
4465
4466 /* If this is a -Bsymbolic link, and the symbol is defined
4467 locally, we just want to emit a RELATIVE reloc. Likewise if
4468 the symbol was forced to be local because of a version file.
4469 The entry in the global offset table will already have been
4470 initialized in the relocate_section function. */
4471 if (! bfd_link_pic (info)
4472 && h->type == STT_GNU_IFUNC
4473 && h->def_regular)
4474 {
4475 asection *plt;
4476
4477 /* We load the GOT entry with the PLT entry. */
4478 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4479 SPARC_ELF_PUT_WORD (htab, output_bfd,
4480 (plt->output_section->vma
4481 + plt->output_offset + h->plt.offset),
4482 htab->elf.sgot->contents
4483 + (h->got.offset & ~(bfd_vma) 1));
4484 return TRUE;
4485 }
4486
4487 if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
4488 {
4489 asection *sec = h->root.u.def.section;
4490 if (h->type == STT_GNU_IFUNC)
4491 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4492 else
4493 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
4494 rela.r_addend = (h->root.u.def.value
4495 + sec->output_section->vma
4496 + sec->output_offset);
4497 }
4498 else
4499 {
4500 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4501 rela.r_addend = 0;
4502 }
4503
4504 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4505 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4506 sparc_elf_append_rela (output_bfd, srela, &rela);
4507 }
4508
4509 if (h->needs_copy)
4510 {
4511 asection *s;
4512 Elf_Internal_Rela rela;
4513
4514 /* This symbols needs a copy reloc. Set it up. */
4515 BFD_ASSERT (h->dynindx != -1);
4516
4517 rela.r_offset = (h->root.u.def.value
4518 + h->root.u.def.section->output_section->vma
4519 + h->root.u.def.section->output_offset);
4520 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4521 rela.r_addend = 0;
4522 if (h->root.u.def.section == htab->elf.sdynrelro)
4523 s = htab->elf.sreldynrelro;
4524 else
4525 s = htab->elf.srelbss;
4526 sparc_elf_append_rela (output_bfd, s, &rela);
4527 }
4528
4529 /* Mark some specially defined symbols as absolute. On VxWorks,
4530 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4531 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
4532 if (sym != NULL
4533 && (h == htab->elf.hdynamic
4534 || (!htab->is_vxworks
4535 && (h == htab->elf.hgot || h == htab->elf.hplt))))
4536 sym->st_shndx = SHN_ABS;
4537
4538 return TRUE;
4539 }
4540
4541 /* Finish up the dynamic sections. */
4542
4543 static bfd_boolean
4544 sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4545 bfd *dynobj, asection *sdyn,
4546 asection *splt ATTRIBUTE_UNUSED)
4547 {
4548 struct _bfd_sparc_elf_link_hash_table *htab;
4549 const struct elf_backend_data *bed;
4550 bfd_byte *dyncon, *dynconend;
4551 size_t dynsize;
4552 int stt_regidx = -1;
4553 bfd_boolean abi_64_p;
4554
4555 htab = _bfd_sparc_elf_hash_table (info);
4556 BFD_ASSERT (htab != NULL);
4557 bed = get_elf_backend_data (output_bfd);
4558 dynsize = bed->s->sizeof_dyn;
4559 dynconend = sdyn->contents + sdyn->size;
4560 abi_64_p = ABI_64_P (output_bfd);
4561 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4562 {
4563 Elf_Internal_Dyn dyn;
4564 bfd_boolean size;
4565
4566 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4567
4568 if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
4569 {
4570 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4571 not to the start of the PLT. */
4572 if (htab->elf.sgotplt)
4573 {
4574 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4575 + htab->elf.sgotplt->output_offset);
4576 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4577 }
4578 }
4579 else if (htab->is_vxworks
4580 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4581 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4582 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4583 {
4584 if (stt_regidx == -1)
4585 {
4586 stt_regidx =
4587 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4588 if (stt_regidx == -1)
4589 return FALSE;
4590 }
4591 dyn.d_un.d_val = stt_regidx++;
4592 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4593 }
4594 else
4595 {
4596 asection *s;
4597
4598 switch (dyn.d_tag)
4599 {
4600 case DT_PLTGOT:
4601 s = htab->elf.splt;
4602 size = FALSE;
4603 break;
4604 case DT_PLTRELSZ:
4605 s = htab->elf.srelplt;
4606 size = TRUE;
4607 break;
4608 case DT_JMPREL:
4609 s = htab->elf.srelplt;
4610 size = FALSE;
4611 break;
4612 default:
4613 continue;
4614 }
4615
4616 if (s == NULL)
4617 dyn.d_un.d_val = 0;
4618 else
4619 {
4620 if (!size)
4621 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4622 else
4623 dyn.d_un.d_val = s->size;
4624 }
4625 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4626 }
4627 }
4628 return TRUE;
4629 }
4630
4631 /* Install the first PLT entry in a VxWorks executable and make sure that
4632 .rela.plt.unloaded relocations have the correct symbol indexes. */
4633
4634 static void
4635 sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4636 {
4637 struct _bfd_sparc_elf_link_hash_table *htab;
4638 Elf_Internal_Rela rela;
4639 bfd_vma got_base;
4640 bfd_byte *loc;
4641
4642 htab = _bfd_sparc_elf_hash_table (info);
4643 BFD_ASSERT (htab != NULL);
4644
4645 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4646 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4647 + htab->elf.hgot->root.u.def.section->output_offset
4648 + htab->elf.hgot->root.u.def.value);
4649
4650 /* Install the initial PLT entry. */
4651 bfd_put_32 (output_bfd,
4652 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
4653 htab->elf.splt->contents);
4654 bfd_put_32 (output_bfd,
4655 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
4656 htab->elf.splt->contents + 4);
4657 bfd_put_32 (output_bfd,
4658 sparc_vxworks_exec_plt0_entry[2],
4659 htab->elf.splt->contents + 8);
4660 bfd_put_32 (output_bfd,
4661 sparc_vxworks_exec_plt0_entry[3],
4662 htab->elf.splt->contents + 12);
4663 bfd_put_32 (output_bfd,
4664 sparc_vxworks_exec_plt0_entry[4],
4665 htab->elf.splt->contents + 16);
4666
4667 loc = htab->srelplt2->contents;
4668
4669 /* Add an unloaded relocation for the initial entry's "sethi". */
4670 rela.r_offset = (htab->elf.splt->output_section->vma
4671 + htab->elf.splt->output_offset);
4672 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4673 rela.r_addend = 8;
4674 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4675 loc += sizeof (Elf32_External_Rela);
4676
4677 /* Likewise the following "or". */
4678 rela.r_offset += 4;
4679 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4680 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4681 loc += sizeof (Elf32_External_Rela);
4682
4683 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4684 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4685 in which symbols were output. */
4686 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4687 {
4688 Elf_Internal_Rela rel;
4689
4690 /* The entry's initial "sethi" (against _G_O_T_). */
4691 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4692 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4693 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4694 loc += sizeof (Elf32_External_Rela);
4695
4696 /* The following "or" (also against _G_O_T_). */
4697 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4698 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4699 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4700 loc += sizeof (Elf32_External_Rela);
4701
4702 /* The .got.plt entry (against _P_L_T_). */
4703 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4704 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4705 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4706 loc += sizeof (Elf32_External_Rela);
4707 }
4708 }
4709
4710 /* Install the first PLT entry in a VxWorks shared object. */
4711
4712 static void
4713 sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4714 {
4715 struct _bfd_sparc_elf_link_hash_table *htab;
4716 unsigned int i;
4717
4718 htab = _bfd_sparc_elf_hash_table (info);
4719 BFD_ASSERT (htab != NULL);
4720
4721 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4722 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
4723 htab->elf.splt->contents + i * 4);
4724 }
4725
4726 /* Finish up local dynamic symbol handling. We set the contents of
4727 various dynamic sections here. */
4728
4729 static bfd_boolean
4730 finish_local_dynamic_symbol (void **slot, void *inf)
4731 {
4732 struct elf_link_hash_entry *h
4733 = (struct elf_link_hash_entry *) *slot;
4734 struct bfd_link_info *info
4735 = (struct bfd_link_info *) inf;
4736
4737 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4738 h, NULL);
4739 }
4740
4741 /* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4742 here since undefined weak symbol may not be dynamic and may not be
4743 called for _bfd_sparc_elf_finish_dynamic_symbol. */
4744
4745 static bfd_boolean
4746 pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
4747 void *inf)
4748 {
4749 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4750 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4751
4752 if (h->root.type != bfd_link_hash_undefweak
4753 || h->dynindx != -1)
4754 return TRUE;
4755
4756 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4757 h, NULL);
4758 }
4759
4760 bfd_boolean
4761 _bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4762 {
4763 bfd *dynobj;
4764 asection *sdyn;
4765 struct _bfd_sparc_elf_link_hash_table *htab;
4766
4767 htab = _bfd_sparc_elf_hash_table (info);
4768 BFD_ASSERT (htab != NULL);
4769 dynobj = htab->elf.dynobj;
4770
4771 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4772
4773 if (elf_hash_table (info)->dynamic_sections_created)
4774 {
4775 asection *splt;
4776
4777 splt = htab->elf.splt;
4778 BFD_ASSERT (splt != NULL && sdyn != NULL);
4779
4780 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4781 return FALSE;
4782
4783 /* Initialize the contents of the .plt section. */
4784 if (splt->size > 0)
4785 {
4786 if (htab->is_vxworks)
4787 {
4788 if (bfd_link_pic (info))
4789 sparc_vxworks_finish_shared_plt (output_bfd, info);
4790 else
4791 sparc_vxworks_finish_exec_plt (output_bfd, info);
4792 }
4793 else
4794 {
4795 memset (splt->contents, 0, htab->plt_header_size);
4796 if (!ABI_64_P (output_bfd))
4797 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4798 splt->contents + splt->size - 4);
4799 }
4800 }
4801
4802 if (elf_section_data (splt->output_section) != NULL)
4803 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4804 = ((htab->is_vxworks || !ABI_64_P (output_bfd))
4805 ? 0 : htab->plt_entry_size);
4806 }
4807
4808 /* Set the first entry in the global offset table to the address of
4809 the dynamic section. */
4810 if (htab->elf.sgot && htab->elf.sgot->size > 0)
4811 {
4812 bfd_vma val = (sdyn ?
4813 sdyn->output_section->vma + sdyn->output_offset :
4814 0);
4815
4816 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
4817 }
4818
4819 if (htab->elf.sgot)
4820 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4821 SPARC_ELF_WORD_BYTES (htab);
4822
4823 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4824 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4825
4826 /* Fill PLT entries for undefined weak symbols in PIE. */
4827 if (bfd_link_pie (info))
4828 bfd_hash_traverse (&info->hash->table,
4829 pie_finish_undefweak_symbol,
4830 info);
4831 return TRUE;
4832 }
4833
4834 \f
4835 /* Set the right machine number for a SPARC ELF file. */
4836
4837 bfd_boolean
4838 _bfd_sparc_elf_object_p (bfd *abfd)
4839 {
4840 obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
4841 obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
4842 obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
4843
4844 unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
4845 unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
4846 | ELF_SPARC_HWCAP_VIS3
4847 | ELF_SPARC_HWCAP_HPC);
4848 unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
4849 | ELF_SPARC_HWCAP_DES
4850 | ELF_SPARC_HWCAP_KASUMI
4851 | ELF_SPARC_HWCAP_CAMELLIA
4852 | ELF_SPARC_HWCAP_MD5
4853 | ELF_SPARC_HWCAP_SHA1
4854 | ELF_SPARC_HWCAP_SHA256
4855 | ELF_SPARC_HWCAP_SHA512
4856 | ELF_SPARC_HWCAP_MPMUL
4857 | ELF_SPARC_HWCAP_MONT
4858 | ELF_SPARC_HWCAP_CRC32C
4859 | ELF_SPARC_HWCAP_CBCOND
4860 | ELF_SPARC_HWCAP_PAUSE);
4861 unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
4862 | ELF_SPARC_HWCAP_IMA);
4863 unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
4864 | ELF_SPARC_HWCAP2_MWAIT
4865 | ELF_SPARC_HWCAP2_XMPMUL
4866 | ELF_SPARC_HWCAP2_XMONT);
4867 unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6
4868 | ELF_SPARC_HWCAP2_ONADDSUB
4869 | ELF_SPARC_HWCAP2_ONMUL
4870 | ELF_SPARC_HWCAP2_ONDIV
4871 | ELF_SPARC_HWCAP2_DICTUNP
4872 | ELF_SPARC_HWCAP2_FPCMPSHL
4873 | ELF_SPARC_HWCAP2_RLE
4874 | ELF_SPARC_HWCAP2_SHA3);
4875
4876 if (ABI_64_P (abfd))
4877 {
4878 unsigned long mach = bfd_mach_sparc_v9;
4879
4880 if (hwcaps2->i & m8_hwcaps2_mask)
4881 mach = bfd_mach_sparc_v9m8;
4882 else if (hwcaps2->i & v9m_hwcaps2_mask)
4883 mach = bfd_mach_sparc_v9m;
4884 else if (hwcaps->i & v9v_hwcaps_mask)
4885 mach = bfd_mach_sparc_v9v;
4886 else if (hwcaps->i & v9e_hwcaps_mask)
4887 mach = bfd_mach_sparc_v9e;
4888 else if (hwcaps->i & v9d_hwcaps_mask)
4889 mach = bfd_mach_sparc_v9d;
4890 else if (hwcaps->i & v9c_hwcaps_mask)
4891 mach = bfd_mach_sparc_v9c;
4892 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4893 mach = bfd_mach_sparc_v9b;
4894 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4895 mach = bfd_mach_sparc_v9a;
4896 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4897 }
4898 else
4899 {
4900 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4901 {
4902 if (hwcaps2->i & m8_hwcaps2_mask)
4903 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4904 bfd_mach_sparc_v8plusm8);
4905 else if (hwcaps2->i & v9m_hwcaps2_mask)
4906 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4907 bfd_mach_sparc_v8plusm);
4908 else if (hwcaps->i & v9v_hwcaps_mask)
4909 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4910 bfd_mach_sparc_v8plusv);
4911 else if (hwcaps->i & v9e_hwcaps_mask)
4912 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4913 bfd_mach_sparc_v8pluse);
4914 else if (hwcaps->i & v9d_hwcaps_mask)
4915 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4916 bfd_mach_sparc_v8plusd);
4917 else if (hwcaps->i & v9c_hwcaps_mask)
4918 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4919 bfd_mach_sparc_v8plusc);
4920 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4921 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4922 bfd_mach_sparc_v8plusb);
4923 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4924 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4925 bfd_mach_sparc_v8plusa);
4926 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4927 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4928 bfd_mach_sparc_v8plus);
4929 else
4930 return FALSE;
4931 }
4932 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4933 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4934 bfd_mach_sparc_sparclite_le);
4935 else
4936 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4937 }
4938 }
4939
4940 /* Return address for Ith PLT stub in section PLT, for relocation REL
4941 or (bfd_vma) -1 if it should not be included. */
4942
4943 bfd_vma
4944 _bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
4945 {
4946 if (ABI_64_P (plt->owner))
4947 {
4948 bfd_vma j;
4949
4950 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
4951 if (i < PLT64_LARGE_THRESHOLD)
4952 return plt->vma + i * PLT64_ENTRY_SIZE;
4953
4954 j = (i - PLT64_LARGE_THRESHOLD) % 160;
4955 i -= j;
4956 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
4957 }
4958 else
4959 return rel->address;
4960 }
4961
4962 /* Merge backend specific data from an object file to the output
4963 object file when linking. */
4964
4965 bfd_boolean
4966 _bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
4967 {
4968 bfd *obfd = info->output_bfd;
4969 obj_attribute *in_attr, *in_attrs;
4970 obj_attribute *out_attr, *out_attrs;
4971
4972 if (!elf_known_obj_attributes_proc (obfd)[0].i)
4973 {
4974 /* This is the first object. Copy the attributes. */
4975 _bfd_elf_copy_obj_attributes (ibfd, obfd);
4976
4977 /* Use the Tag_null value to indicate the attributes have been
4978 initialized. */
4979 elf_known_obj_attributes_proc (obfd)[0].i = 1;
4980
4981 return TRUE;
4982 }
4983
4984 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4985 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4986
4987 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
4988 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
4989
4990 out_attr->i |= in_attr->i;
4991 out_attr->type = 1;
4992
4993 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
4994 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
4995
4996 out_attr->i |= in_attr->i;
4997 out_attr->type = 1;
4998
4999 /* Merge Tag_compatibility attributes and any common GNU ones. */
5000 _bfd_elf_merge_object_attributes (ibfd, info);
5001
5002 return TRUE;
5003 }