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0f2b7ad53eefd0a5a50fa1c5ce05a288e1a17b70
[deliverable/binutils-gdb.git] / bfd / elfxx-sparc.c
1 /* SPARC-specific support for ELF
2 Copyright (C) 2005-2017 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 (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 (_("invalid relocation type %d"), (int) r_type);
640 r_type = R_SPARC_NONE;
641 }
642 return &_bfd_sparc_elf_howto_table[r_type];
643 }
644 }
645
646 /* Both 32-bit and 64-bit sparc encode this in an identical manner,
647 so just take advantage of that. */
648 #define SPARC_ELF_R_TYPE(r_info) \
649 ((r_info) & 0xff)
650
651 void
652 _bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
653 Elf_Internal_Rela *dst)
654 {
655 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
656
657 cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type);
658 }
659 \f
660
661 /* The nop opcode we use. */
662 #define SPARC_NOP 0x01000000
663
664 #define SPARC_INSN_BYTES 4
665
666 /* The SPARC linker needs to keep track of the number of relocs that it
667 decides to copy as dynamic relocs in check_relocs for each symbol.
668 This is so that it can later discard them if they are found to be
669 unnecessary. We store the information in a field extending the
670 regular ELF linker hash table. */
671
672 struct _bfd_sparc_elf_dyn_relocs
673 {
674 struct _bfd_sparc_elf_dyn_relocs *next;
675
676 /* The input section of the reloc. */
677 asection *sec;
678
679 /* Total number of relocs copied for the input section. */
680 bfd_size_type count;
681
682 /* Number of pc-relative relocs copied for the input section. */
683 bfd_size_type pc_count;
684 };
685
686 /* Is an undefined weak symbol resolved to 0 ?
687 Reference to an undefined weak symbol is resolved to 0 when
688 building an executable if it isn't dynamic and
689 1. Has non-GOT/non-PLT relocations in text section.
690 Or
691 2. Has no GOT/PLT relocation. */
692 #define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
693 ((EH)->elf.root.type == bfd_link_hash_undefweak \
694 && bfd_link_executable (INFO) \
695 && (_bfd_sparc_elf_hash_table (INFO)->interp == NULL \
696 || !(EH)->has_got_reloc \
697 || (EH)->has_non_got_reloc \
698 || !(INFO)->dynamic_undefined_weak))
699
700 /* SPARC ELF linker hash entry. */
701
702 struct _bfd_sparc_elf_link_hash_entry
703 {
704 struct elf_link_hash_entry elf;
705
706 /* Track dynamic relocs copied for this symbol. */
707 struct _bfd_sparc_elf_dyn_relocs *dyn_relocs;
708
709 #define GOT_UNKNOWN 0
710 #define GOT_NORMAL 1
711 #define GOT_TLS_GD 2
712 #define GOT_TLS_IE 3
713 unsigned char tls_type;
714
715 /* Symbol has GOT or PLT relocations. */
716 unsigned int has_got_reloc : 1;
717
718 /* Symbol has non-GOT/non-PLT relocations in text sections. */
719 unsigned int has_non_got_reloc : 1;
720
721 };
722
723 #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
724
725 struct _bfd_sparc_elf_obj_tdata
726 {
727 struct elf_obj_tdata root;
728
729 /* tls_type for each local got entry. */
730 char *local_got_tls_type;
731
732 /* TRUE if TLS GD relocs has been seen for this object. */
733 bfd_boolean has_tlsgd;
734 };
735
736 #define _bfd_sparc_elf_tdata(abfd) \
737 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
738
739 #define _bfd_sparc_elf_local_got_tls_type(abfd) \
740 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
741
742 #define is_sparc_elf(bfd) \
743 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
744 && elf_tdata (bfd) != NULL \
745 && elf_object_id (bfd) == SPARC_ELF_DATA)
746
747 bfd_boolean
748 _bfd_sparc_elf_mkobject (bfd *abfd)
749 {
750 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
751 SPARC_ELF_DATA);
752 }
753
754 static void
755 sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
756 {
757 bfd_put_32 (abfd, val, ptr);
758 }
759
760 static void
761 sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
762 {
763 bfd_put_64 (abfd, val, ptr);
764 }
765
766 static void
767 sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
768 {
769 const struct elf_backend_data *bed;
770 bfd_byte *loc;
771
772 bed = get_elf_backend_data (abfd);
773 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
774 bed->s->swap_reloca_out (abfd, rel, loc);
775 }
776
777 static bfd_vma
778 sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
779 bfd_vma rel_index ATTRIBUTE_UNUSED,
780 bfd_vma type ATTRIBUTE_UNUSED)
781 {
782 return ELF64_R_INFO (rel_index,
783 (in_rel ?
784 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
785 type) : type));
786 }
787
788 static bfd_vma
789 sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
790 bfd_vma rel_index, bfd_vma type)
791 {
792 return ELF32_R_INFO (rel_index, type);
793 }
794
795 static bfd_vma
796 sparc_elf_r_symndx_64 (bfd_vma r_info)
797 {
798 bfd_vma r_symndx = ELF32_R_SYM (r_info);
799 return (r_symndx >> 24);
800 }
801
802 static bfd_vma
803 sparc_elf_r_symndx_32 (bfd_vma r_info)
804 {
805 return ELF32_R_SYM (r_info);
806 }
807
808 /* PLT/GOT stuff */
809
810 #define PLT32_ENTRY_SIZE 12
811 #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
812
813 /* The first four entries in a 32-bit procedure linkage table are reserved,
814 and the initial contents are unimportant (we zero them out).
815 Subsequent entries look like this. See the SVR4 ABI SPARC
816 supplement to see how this works. */
817
818 /* sethi %hi(.-.plt0),%g1. We fill in the address later. */
819 #define PLT32_ENTRY_WORD0 0x03000000
820 /* b,a .plt0. We fill in the offset later. */
821 #define PLT32_ENTRY_WORD1 0x30800000
822 /* nop. */
823 #define PLT32_ENTRY_WORD2 SPARC_NOP
824
825 static int
826 sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
827 bfd_vma max ATTRIBUTE_UNUSED,
828 bfd_vma *r_offset)
829 {
830 bfd_put_32 (output_bfd,
831 PLT32_ENTRY_WORD0 + offset,
832 splt->contents + offset);
833 bfd_put_32 (output_bfd,
834 (PLT32_ENTRY_WORD1
835 + (((- (offset + 4)) >> 2) & 0x3fffff)),
836 splt->contents + offset + 4);
837 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
838 splt->contents + offset + 8);
839
840 *r_offset = offset;
841
842 return offset / PLT32_ENTRY_SIZE - 4;
843 }
844
845 /* Both the headers and the entries are icache aligned. */
846 #define PLT64_ENTRY_SIZE 32
847 #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
848 #define PLT64_LARGE_THRESHOLD 32768
849
850 static int
851 sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
852 bfd_vma max, bfd_vma *r_offset)
853 {
854 unsigned char *entry = splt->contents + offset;
855 const unsigned int nop = SPARC_NOP;
856 int plt_index;
857
858 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
859 {
860 unsigned int sethi, ba;
861
862 *r_offset = offset;
863
864 plt_index = (offset / PLT64_ENTRY_SIZE);
865
866 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
867 ba = 0x30680000
868 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
869
870 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
871 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
872 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
873 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
874 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
875 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
876 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
877 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
878 }
879 else
880 {
881 unsigned char *ptr;
882 unsigned int ldx;
883 int block, last_block, ofs, last_ofs, chunks_this_block;
884 const int insn_chunk_size = (6 * 4);
885 const int ptr_chunk_size = (1 * 8);
886 const int entries_per_block = 160;
887 const int block_size = entries_per_block * (insn_chunk_size
888 + ptr_chunk_size);
889
890 /* Entries 32768 and higher are grouped into blocks of 160.
891 The blocks are further subdivided into 160 sequences of
892 6 instructions and 160 pointers. If a block does not require
893 the full 160 entries, let's say it requires N, then there
894 will be N sequences of 6 instructions and N pointers. */
895
896 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
897 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
898
899 block = offset / block_size;
900 last_block = max / block_size;
901 if (block != last_block)
902 {
903 chunks_this_block = 160;
904 }
905 else
906 {
907 last_ofs = max % block_size;
908 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
909 }
910
911 ofs = offset % block_size;
912
913 plt_index = (PLT64_LARGE_THRESHOLD +
914 (block * 160) +
915 (ofs / insn_chunk_size));
916
917 ptr = splt->contents
918 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
919 + (block * block_size)
920 + (chunks_this_block * insn_chunk_size)
921 + (ofs / insn_chunk_size) * ptr_chunk_size;
922
923 *r_offset = (bfd_vma) (ptr - splt->contents);
924
925 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
926
927 /* mov %o7,%g5
928 call .+8
929 nop
930 ldx [%o7+P],%g1
931 jmpl %o7+%g1,%g1
932 mov %g5,%o7 */
933 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
934 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
935 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
936 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
937 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
938 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
939
940 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
941 }
942
943 return plt_index - 4;
944 }
945
946 /* The format of the first PLT entry in a VxWorks executable. */
947 static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
948 {
949 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
950 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
951 0xc4008000, /* ld [ %g2 ], %g2 */
952 0x81c08000, /* jmp %g2 */
953 0x01000000 /* nop */
954 };
955
956 /* The format of subsequent PLT entries. */
957 static const bfd_vma sparc_vxworks_exec_plt_entry[] =
958 {
959 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
960 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
961 0xc2004000, /* ld [ %g1 ], %g1 */
962 0x81c04000, /* jmp %g1 */
963 0x01000000, /* nop */
964 0x03000000, /* sethi %hi(f@pltindex), %g1 */
965 0x10800000, /* b _PLT_resolve */
966 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
967 };
968
969 /* The format of the first PLT entry in a VxWorks shared object. */
970 static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
971 {
972 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
973 0x81c08000, /* jmp %g2 */
974 0x01000000 /* nop */
975 };
976
977 /* The format of subsequent PLT entries. */
978 static const bfd_vma sparc_vxworks_shared_plt_entry[] =
979 {
980 0x03000000, /* sethi %hi(f@got), %g1 */
981 0x82106000, /* or %g1, %lo(f@got), %g1 */
982 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
983 0x81c04000, /* jmp %g1 */
984 0x01000000, /* nop */
985 0x03000000, /* sethi %hi(f@pltindex), %g1 */
986 0x10800000, /* b _PLT_resolve */
987 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
988 };
989
990 #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
991 htab->put_word(bfd, val, ptr)
992
993 #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
994 htab->r_info(in_rel, index, type)
995
996 #define SPARC_ELF_R_SYMNDX(htab, r_info) \
997 htab->r_symndx(r_info)
998
999 #define SPARC_ELF_WORD_BYTES(htab) \
1000 htab->bytes_per_word
1001
1002 #define SPARC_ELF_RELA_BYTES(htab) \
1003 htab->bytes_per_rela
1004
1005 #define SPARC_ELF_DTPOFF_RELOC(htab) \
1006 htab->dtpoff_reloc
1007
1008 #define SPARC_ELF_DTPMOD_RELOC(htab) \
1009 htab->dtpmod_reloc
1010
1011 #define SPARC_ELF_TPOFF_RELOC(htab) \
1012 htab->tpoff_reloc
1013
1014 #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
1015 htab->build_plt_entry (obfd, splt, off, max, r_off)
1016
1017 /* Create an entry in an SPARC ELF linker hash table. */
1018
1019 static struct bfd_hash_entry *
1020 link_hash_newfunc (struct bfd_hash_entry *entry,
1021 struct bfd_hash_table *table, const char *string)
1022 {
1023 /* Allocate the structure if it has not already been allocated by a
1024 subclass. */
1025 if (entry == NULL)
1026 {
1027 entry = bfd_hash_allocate (table,
1028 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1029 if (entry == NULL)
1030 return entry;
1031 }
1032
1033 /* Call the allocation method of the superclass. */
1034 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1035 if (entry != NULL)
1036 {
1037 struct _bfd_sparc_elf_link_hash_entry *eh;
1038
1039 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
1040 eh->dyn_relocs = NULL;
1041 eh->tls_type = GOT_UNKNOWN;
1042 eh->has_got_reloc = 0;
1043 eh->has_non_got_reloc = 0;
1044 }
1045
1046 return entry;
1047 }
1048
1049 /* The name of the dynamic interpreter. This is put in the .interp
1050 section. */
1051
1052 #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1053 #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1054
1055 /* Compute a hash of a local hash entry. We use elf_link_hash_entry
1056 for local symbol so that we can handle local STT_GNU_IFUNC symbols
1057 as global symbol. We reuse indx and dynstr_index for local symbol
1058 hash since they aren't used by global symbols in this backend. */
1059
1060 static hashval_t
1061 elf_sparc_local_htab_hash (const void *ptr)
1062 {
1063 struct elf_link_hash_entry *h
1064 = (struct elf_link_hash_entry *) ptr;
1065 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1066 }
1067
1068 /* Compare local hash entries. */
1069
1070 static int
1071 elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1072 {
1073 struct elf_link_hash_entry *h1
1074 = (struct elf_link_hash_entry *) ptr1;
1075 struct elf_link_hash_entry *h2
1076 = (struct elf_link_hash_entry *) ptr2;
1077
1078 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1079 }
1080
1081 /* Find and/or create a hash entry for local symbol. */
1082
1083 static struct elf_link_hash_entry *
1084 elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1085 bfd *abfd, const Elf_Internal_Rela *rel,
1086 bfd_boolean create)
1087 {
1088 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1089 asection *sec = abfd->sections;
1090 unsigned long r_symndx;
1091 hashval_t h;
1092 void **slot;
1093
1094 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1095 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1096
1097 e.elf.indx = sec->id;
1098 e.elf.dynstr_index = r_symndx;
1099 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1100 create ? INSERT : NO_INSERT);
1101
1102 if (!slot)
1103 return NULL;
1104
1105 if (*slot)
1106 {
1107 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1108 return &ret->elf;
1109 }
1110
1111 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1112 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1113 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1114 if (ret)
1115 {
1116 memset (ret, 0, sizeof (*ret));
1117 ret->elf.indx = sec->id;
1118 ret->elf.dynstr_index = r_symndx;
1119 ret->elf.dynindx = -1;
1120 ret->elf.plt.offset = (bfd_vma) -1;
1121 ret->elf.got.offset = (bfd_vma) -1;
1122 *slot = ret;
1123 }
1124 return &ret->elf;
1125 }
1126
1127 /* Destroy a SPARC ELF linker hash table. */
1128
1129 static void
1130 _bfd_sparc_elf_link_hash_table_free (bfd *obfd)
1131 {
1132 struct _bfd_sparc_elf_link_hash_table *htab
1133 = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
1134
1135 if (htab->loc_hash_table)
1136 htab_delete (htab->loc_hash_table);
1137 if (htab->loc_hash_memory)
1138 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
1139 _bfd_elf_link_hash_table_free (obfd);
1140 }
1141
1142 /* Create a SPARC ELF linker hash table. */
1143
1144 struct bfd_link_hash_table *
1145 _bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1146 {
1147 struct _bfd_sparc_elf_link_hash_table *ret;
1148 bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1149
1150 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1151 if (ret == NULL)
1152 return NULL;
1153
1154 if (ABI_64_P (abfd))
1155 {
1156 ret->put_word = sparc_put_word_64;
1157 ret->r_info = sparc_elf_r_info_64;
1158 ret->r_symndx = sparc_elf_r_symndx_64;
1159 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1160 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1161 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1162 ret->word_align_power = 3;
1163 ret->align_power_max = 4;
1164 ret->bytes_per_word = 8;
1165 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1166 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1167 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
1168
1169 ret->build_plt_entry = sparc64_plt_entry_build;
1170 ret->plt_header_size = PLT64_HEADER_SIZE;
1171 ret->plt_entry_size = PLT64_ENTRY_SIZE;
1172 }
1173 else
1174 {
1175 ret->put_word = sparc_put_word_32;
1176 ret->r_info = sparc_elf_r_info_32;
1177 ret->r_symndx = sparc_elf_r_symndx_32;
1178 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1179 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1180 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1181 ret->word_align_power = 2;
1182 ret->align_power_max = 3;
1183 ret->bytes_per_word = 4;
1184 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1185 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1186 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
1187
1188 ret->build_plt_entry = sparc32_plt_entry_build;
1189 ret->plt_header_size = PLT32_HEADER_SIZE;
1190 ret->plt_entry_size = PLT32_ENTRY_SIZE;
1191 }
1192
1193 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1194 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1195 SPARC_ELF_DATA))
1196 {
1197 free (ret);
1198 return NULL;
1199 }
1200
1201 ret->loc_hash_table = htab_try_create (1024,
1202 elf_sparc_local_htab_hash,
1203 elf_sparc_local_htab_eq,
1204 NULL);
1205 ret->loc_hash_memory = objalloc_create ();
1206 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1207 {
1208 _bfd_sparc_elf_link_hash_table_free (abfd);
1209 return NULL;
1210 }
1211 ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
1212
1213 return &ret->elf.root;
1214 }
1215
1216 /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1217 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1218 hash table. */
1219
1220 bfd_boolean
1221 _bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1222 struct bfd_link_info *info)
1223 {
1224 struct _bfd_sparc_elf_link_hash_table *htab;
1225
1226 htab = _bfd_sparc_elf_hash_table (info);
1227 BFD_ASSERT (htab != NULL);
1228
1229 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1230 return FALSE;
1231
1232 if (htab->is_vxworks)
1233 {
1234 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1235 return FALSE;
1236 if (bfd_link_pic (info))
1237 {
1238 htab->plt_header_size
1239 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1240 htab->plt_entry_size
1241 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1242 }
1243 else
1244 {
1245 htab->plt_header_size
1246 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1247 htab->plt_entry_size
1248 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1249 }
1250 }
1251
1252 if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1253 || (!bfd_link_pic (info) && !htab->elf.srelbss))
1254 abort ();
1255
1256 return TRUE;
1257 }
1258
1259 static bfd_boolean
1260 create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1261 {
1262 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1263 struct elf_link_hash_table *htab = elf_hash_table (info);
1264 flagword flags, pltflags;
1265 asection *s;
1266
1267 if (htab->irelifunc != NULL || htab->iplt != NULL)
1268 return TRUE;
1269
1270 flags = bed->dynamic_sec_flags;
1271 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1272
1273 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1274 if (s == NULL
1275 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1276 return FALSE;
1277 htab->iplt = s;
1278
1279 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1280 flags | SEC_READONLY);
1281 if (s == NULL
1282 || ! bfd_set_section_alignment (abfd, s,
1283 bed->s->log_file_align))
1284 return FALSE;
1285 htab->irelplt = s;
1286
1287 return TRUE;
1288 }
1289
1290 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1291
1292 void
1293 _bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
1294 struct elf_link_hash_entry *dir,
1295 struct elf_link_hash_entry *ind)
1296 {
1297 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1298
1299 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1300 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1301
1302 if (eind->dyn_relocs != NULL)
1303 {
1304 if (edir->dyn_relocs != NULL)
1305 {
1306 struct _bfd_sparc_elf_dyn_relocs **pp;
1307 struct _bfd_sparc_elf_dyn_relocs *p;
1308
1309 /* Add reloc counts against the indirect sym to the direct sym
1310 list. Merge any entries against the same section. */
1311 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1312 {
1313 struct _bfd_sparc_elf_dyn_relocs *q;
1314
1315 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1316 if (q->sec == p->sec)
1317 {
1318 q->pc_count += p->pc_count;
1319 q->count += p->count;
1320 *pp = p->next;
1321 break;
1322 }
1323 if (q == NULL)
1324 pp = &p->next;
1325 }
1326 *pp = edir->dyn_relocs;
1327 }
1328
1329 edir->dyn_relocs = eind->dyn_relocs;
1330 eind->dyn_relocs = NULL;
1331 }
1332
1333 if (ind->root.type == bfd_link_hash_indirect
1334 && dir->got.refcount <= 0)
1335 {
1336 edir->tls_type = eind->tls_type;
1337 eind->tls_type = GOT_UNKNOWN;
1338 }
1339
1340 /* Copy has_got_reloc and has_non_got_reloc. */
1341 edir->has_got_reloc |= eind->has_got_reloc;
1342 edir->has_non_got_reloc |= eind->has_non_got_reloc;
1343
1344 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1345 }
1346
1347 static int
1348 sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1349 int r_type, int is_local)
1350 {
1351 if (! ABI_64_P (abfd)
1352 && r_type == R_SPARC_TLS_GD_HI22
1353 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1354 r_type = R_SPARC_REV32;
1355
1356 if (bfd_link_pic (info))
1357 return r_type;
1358
1359 switch (r_type)
1360 {
1361 case R_SPARC_TLS_GD_HI22:
1362 if (is_local)
1363 return R_SPARC_TLS_LE_HIX22;
1364 return R_SPARC_TLS_IE_HI22;
1365 case R_SPARC_TLS_GD_LO10:
1366 if (is_local)
1367 return R_SPARC_TLS_LE_LOX10;
1368 return R_SPARC_TLS_IE_LO10;
1369 case R_SPARC_TLS_IE_HI22:
1370 if (is_local)
1371 return R_SPARC_TLS_LE_HIX22;
1372 return r_type;
1373 case R_SPARC_TLS_IE_LO10:
1374 if (is_local)
1375 return R_SPARC_TLS_LE_LOX10;
1376 return r_type;
1377 case R_SPARC_TLS_LDM_HI22:
1378 return R_SPARC_TLS_LE_HIX22;
1379 case R_SPARC_TLS_LDM_LO10:
1380 return R_SPARC_TLS_LE_LOX10;
1381 }
1382
1383 return r_type;
1384 }
1385 \f
1386 /* Look through the relocs for a section during the first phase, and
1387 allocate space in the global offset table or procedure linkage
1388 table. */
1389
1390 bfd_boolean
1391 _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1392 asection *sec, const Elf_Internal_Rela *relocs)
1393 {
1394 struct _bfd_sparc_elf_link_hash_table *htab;
1395 Elf_Internal_Shdr *symtab_hdr;
1396 struct elf_link_hash_entry **sym_hashes;
1397 const Elf_Internal_Rela *rel;
1398 const Elf_Internal_Rela *rel_end;
1399 asection *sreloc;
1400 int num_relocs;
1401 bfd_boolean checked_tlsgd = FALSE;
1402
1403 if (bfd_link_relocatable (info))
1404 return TRUE;
1405
1406 htab = _bfd_sparc_elf_hash_table (info);
1407 BFD_ASSERT (htab != NULL);
1408 symtab_hdr = &elf_symtab_hdr (abfd);
1409 sym_hashes = elf_sym_hashes (abfd);
1410
1411 sreloc = NULL;
1412
1413 if (ABI_64_P (abfd))
1414 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
1415 else
1416 num_relocs = sec->reloc_count;
1417
1418 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1419
1420 if (htab->elf.dynobj == NULL)
1421 htab->elf.dynobj = abfd;
1422 if (!create_ifunc_sections (htab->elf.dynobj, info))
1423 return FALSE;
1424
1425 rel_end = relocs + num_relocs;
1426 for (rel = relocs; rel < rel_end; rel++)
1427 {
1428 unsigned int r_type;
1429 unsigned int r_symndx;
1430 struct elf_link_hash_entry *h;
1431 struct _bfd_sparc_elf_link_hash_entry *eh;
1432 Elf_Internal_Sym *isym;
1433
1434 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1435 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1436
1437 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1438 {
1439 /* xgettext:c-format */
1440 _bfd_error_handler (_("%B: bad symbol index: %d"), abfd, r_symndx);
1441 return FALSE;
1442 }
1443
1444 isym = NULL;
1445 if (r_symndx < symtab_hdr->sh_info)
1446 {
1447 /* A local symbol. */
1448 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1449 abfd, r_symndx);
1450 if (isym == NULL)
1451 return FALSE;
1452
1453 /* Check relocation against local STT_GNU_IFUNC symbol. */
1454 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1455 {
1456 h = elf_sparc_get_local_sym_hash (htab, abfd, rel,
1457 TRUE);
1458 if (h == NULL)
1459 return FALSE;
1460
1461 /* Fake a STT_GNU_IFUNC symbol. */
1462 h->type = STT_GNU_IFUNC;
1463 h->def_regular = 1;
1464 h->ref_regular = 1;
1465 h->forced_local = 1;
1466 h->root.type = bfd_link_hash_defined;
1467 }
1468 else
1469 h = NULL;
1470 }
1471 else
1472 {
1473 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1474 while (h->root.type == bfd_link_hash_indirect
1475 || h->root.type == bfd_link_hash_warning)
1476 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1477
1478 /* PR15323, ref flags aren't set for references in the same
1479 object. */
1480 h->root.non_ir_ref_regular = 1;
1481 }
1482
1483 if (h && h->type == STT_GNU_IFUNC)
1484 {
1485 if (h->def_regular)
1486 {
1487 h->ref_regular = 1;
1488 h->plt.refcount += 1;
1489 }
1490 }
1491
1492 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1493 with R_SPARC_TLS_GD_HI22. */
1494 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1495 switch (r_type)
1496 {
1497 case R_SPARC_TLS_GD_HI22:
1498 {
1499 const Elf_Internal_Rela *relt;
1500
1501 for (relt = rel + 1; relt < rel_end; relt++)
1502 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1503 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1504 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1505 break;
1506 checked_tlsgd = TRUE;
1507 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1508 }
1509 break;
1510 case R_SPARC_TLS_GD_LO10:
1511 case R_SPARC_TLS_GD_ADD:
1512 case R_SPARC_TLS_GD_CALL:
1513 checked_tlsgd = TRUE;
1514 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1515 break;
1516 }
1517
1518 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
1519 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1520
1521 switch (r_type)
1522 {
1523 case R_SPARC_TLS_LDM_HI22:
1524 case R_SPARC_TLS_LDM_LO10:
1525 htab->tls_ldm_got.refcount += 1;
1526 if (eh != NULL)
1527 eh->has_got_reloc = 1;
1528 break;
1529
1530 case R_SPARC_TLS_LE_HIX22:
1531 case R_SPARC_TLS_LE_LOX10:
1532 if (bfd_link_pic (info))
1533 goto r_sparc_plt32;
1534 break;
1535
1536 case R_SPARC_TLS_IE_HI22:
1537 case R_SPARC_TLS_IE_LO10:
1538 if (bfd_link_pic (info))
1539 info->flags |= DF_STATIC_TLS;
1540 /* Fall through */
1541
1542 case R_SPARC_GOT10:
1543 case R_SPARC_GOT13:
1544 case R_SPARC_GOT22:
1545 case R_SPARC_GOTDATA_HIX22:
1546 case R_SPARC_GOTDATA_LOX10:
1547 case R_SPARC_GOTDATA_OP_HIX22:
1548 case R_SPARC_GOTDATA_OP_LOX10:
1549 case R_SPARC_TLS_GD_HI22:
1550 case R_SPARC_TLS_GD_LO10:
1551 /* This symbol requires a global offset table entry. */
1552 {
1553 int tls_type, old_tls_type;
1554
1555 switch (r_type)
1556 {
1557 default:
1558 case R_SPARC_GOT10:
1559 case R_SPARC_GOT13:
1560 case R_SPARC_GOT22:
1561 case R_SPARC_GOTDATA_OP_HIX22:
1562 case R_SPARC_GOTDATA_OP_LOX10:
1563 tls_type = GOT_NORMAL;
1564 break;
1565 case R_SPARC_TLS_GD_HI22:
1566 case R_SPARC_TLS_GD_LO10:
1567 tls_type = GOT_TLS_GD;
1568 break;
1569 case R_SPARC_TLS_IE_HI22:
1570 case R_SPARC_TLS_IE_LO10:
1571 tls_type = GOT_TLS_IE;
1572 break;
1573 }
1574
1575 if (h != NULL)
1576 {
1577 h->got.refcount += 1;
1578 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1579 }
1580 else
1581 {
1582 bfd_signed_vma *local_got_refcounts;
1583
1584 /* This is a global offset table entry for a local symbol. */
1585 local_got_refcounts = elf_local_got_refcounts (abfd);
1586 if (local_got_refcounts == NULL)
1587 {
1588 bfd_size_type size;
1589
1590 size = symtab_hdr->sh_info;
1591 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1592 local_got_refcounts = ((bfd_signed_vma *)
1593 bfd_zalloc (abfd, size));
1594 if (local_got_refcounts == NULL)
1595 return FALSE;
1596 elf_local_got_refcounts (abfd) = local_got_refcounts;
1597 _bfd_sparc_elf_local_got_tls_type (abfd)
1598 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1599 }
1600 switch (r_type)
1601 {
1602 case R_SPARC_GOTDATA_OP_HIX22:
1603 case R_SPARC_GOTDATA_OP_LOX10:
1604 break;
1605
1606 default:
1607 local_got_refcounts[r_symndx] += 1;
1608 break;
1609 }
1610 old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1611 }
1612
1613 /* If a TLS symbol is accessed using IE at least once,
1614 there is no point to use dynamic model for it. */
1615 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1616 && (old_tls_type != GOT_TLS_GD
1617 || tls_type != GOT_TLS_IE))
1618 {
1619 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1620 tls_type = old_tls_type;
1621 else
1622 {
1623 _bfd_error_handler
1624 /* xgettext:c-format */
1625 (_("%B: `%s' accessed both as normal and thread local symbol"),
1626 abfd, h ? h->root.root.string : "<local>");
1627 return FALSE;
1628 }
1629 }
1630
1631 if (old_tls_type != tls_type)
1632 {
1633 if (h != NULL)
1634 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1635 else
1636 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1637 }
1638 }
1639
1640 if (htab->elf.sgot == NULL)
1641 {
1642 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
1643 return FALSE;
1644 }
1645
1646 if (eh != NULL)
1647 eh->has_got_reloc = 1;
1648 break;
1649
1650 case R_SPARC_TLS_GD_CALL:
1651 case R_SPARC_TLS_LDM_CALL:
1652 if (bfd_link_pic (info))
1653 {
1654 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1655 __tls_get_addr. */
1656 struct bfd_link_hash_entry *bh = NULL;
1657 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1658 "__tls_get_addr", 0,
1659 bfd_und_section_ptr, 0,
1660 NULL, FALSE, FALSE,
1661 &bh))
1662 return FALSE;
1663 h = (struct elf_link_hash_entry *) bh;
1664 }
1665 else
1666 break;
1667 /* Fall through */
1668
1669 case R_SPARC_PLT32:
1670 case R_SPARC_WPLT30:
1671 case R_SPARC_HIPLT22:
1672 case R_SPARC_LOPLT10:
1673 case R_SPARC_PCPLT32:
1674 case R_SPARC_PCPLT22:
1675 case R_SPARC_PCPLT10:
1676 case R_SPARC_PLT64:
1677 /* This symbol requires a procedure linkage table entry. We
1678 actually build the entry in adjust_dynamic_symbol,
1679 because this might be a case of linking PIC code without
1680 linking in any dynamic objects, in which case we don't
1681 need to generate a procedure linkage table after all. */
1682
1683 if (h == NULL)
1684 {
1685 if (! ABI_64_P (abfd))
1686 {
1687 /* The Solaris native assembler will generate a WPLT30
1688 reloc for a local symbol if you assemble a call from
1689 one section to another when using -K pic. We treat
1690 it as WDISP30. */
1691 if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
1692 goto r_sparc_plt32;
1693 break;
1694 }
1695 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1696 else if (r_type == R_SPARC_WPLT30)
1697 break;
1698
1699 /* It does not make sense to have a procedure linkage
1700 table entry for a local symbol. */
1701 bfd_set_error (bfd_error_bad_value);
1702 return FALSE;
1703 }
1704
1705 h->needs_plt = 1;
1706
1707 {
1708 int this_r_type;
1709
1710 this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
1711 if (this_r_type == R_SPARC_PLT32
1712 || this_r_type == R_SPARC_PLT64)
1713 goto r_sparc_plt32;
1714 }
1715 h->plt.refcount += 1;
1716
1717 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1718 eh->has_got_reloc = 1;
1719 break;
1720
1721 case R_SPARC_PC10:
1722 case R_SPARC_PC22:
1723 case R_SPARC_PC_HH22:
1724 case R_SPARC_PC_HM10:
1725 case R_SPARC_PC_LM22:
1726 if (h != NULL)
1727 h->non_got_ref = 1;
1728
1729 if (h != NULL
1730 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1731 break;
1732 /* Fall through. */
1733
1734 case R_SPARC_DISP8:
1735 case R_SPARC_DISP16:
1736 case R_SPARC_DISP32:
1737 case R_SPARC_DISP64:
1738 case R_SPARC_WDISP30:
1739 case R_SPARC_WDISP22:
1740 case R_SPARC_WDISP19:
1741 case R_SPARC_WDISP16:
1742 case R_SPARC_WDISP10:
1743 case R_SPARC_8:
1744 case R_SPARC_16:
1745 case R_SPARC_32:
1746 case R_SPARC_HI22:
1747 case R_SPARC_22:
1748 case R_SPARC_13:
1749 case R_SPARC_LO10:
1750 case R_SPARC_UA16:
1751 case R_SPARC_UA32:
1752 case R_SPARC_10:
1753 case R_SPARC_11:
1754 case R_SPARC_64:
1755 case R_SPARC_OLO10:
1756 case R_SPARC_HH22:
1757 case R_SPARC_HM10:
1758 case R_SPARC_LM22:
1759 case R_SPARC_7:
1760 case R_SPARC_5:
1761 case R_SPARC_6:
1762 case R_SPARC_HIX22:
1763 case R_SPARC_LOX10:
1764 case R_SPARC_H44:
1765 case R_SPARC_M44:
1766 case R_SPARC_L44:
1767 case R_SPARC_H34:
1768 case R_SPARC_UA64:
1769 if (h != NULL)
1770 h->non_got_ref = 1;
1771
1772 if (eh != NULL && (sec->flags & SEC_CODE) != 0)
1773 eh->has_non_got_reloc = 1;
1774
1775 r_sparc_plt32:
1776 if (h != NULL && !bfd_link_pic (info))
1777 {
1778 /* We may need a .plt entry if the function this reloc
1779 refers to is in a shared lib. */
1780 h->plt.refcount += 1;
1781 }
1782
1783 /* If we are creating a shared library, and this is a reloc
1784 against a global symbol, or a non PC relative reloc
1785 against a local symbol, then we need to copy the reloc
1786 into the shared library. However, if we are linking with
1787 -Bsymbolic, we do not need to copy a reloc against a
1788 global symbol which is defined in an object we are
1789 including in the link (i.e., DEF_REGULAR is set). At
1790 this point we have not seen all the input files, so it is
1791 possible that DEF_REGULAR is not set now but will be set
1792 later (it is never cleared). In case of a weak definition,
1793 DEF_REGULAR may be cleared later by a strong definition in
1794 a shared library. We account for that possibility below by
1795 storing information in the relocs_copied field of the hash
1796 table entry. A similar situation occurs when creating
1797 shared libraries and symbol visibility changes render the
1798 symbol local.
1799
1800 If on the other hand, we are creating an executable, we
1801 may need to keep relocations for symbols satisfied by a
1802 dynamic library if we manage to avoid copy relocs for the
1803 symbol. */
1804 if ((bfd_link_pic (info)
1805 && (sec->flags & SEC_ALLOC) != 0
1806 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1807 || (h != NULL
1808 && (! SYMBOLIC_BIND (info, h)
1809 || h->root.type == bfd_link_hash_defweak
1810 || !h->def_regular))))
1811 || (!bfd_link_pic (info)
1812 && (sec->flags & SEC_ALLOC) != 0
1813 && h != NULL
1814 && (h->root.type == bfd_link_hash_defweak
1815 || !h->def_regular))
1816 || (!bfd_link_pic (info)
1817 && h != NULL
1818 && h->type == STT_GNU_IFUNC))
1819 {
1820 struct _bfd_sparc_elf_dyn_relocs *p;
1821 struct _bfd_sparc_elf_dyn_relocs **head;
1822
1823 /* When creating a shared object, we must copy these
1824 relocs into the output file. We create a reloc
1825 section in dynobj and make room for the reloc. */
1826 if (sreloc == NULL)
1827 {
1828 sreloc = _bfd_elf_make_dynamic_reloc_section
1829 (sec, htab->elf.dynobj, htab->word_align_power,
1830 abfd, /*rela?*/ TRUE);
1831
1832 if (sreloc == NULL)
1833 return FALSE;
1834 }
1835
1836 /* If this is a global symbol, we count the number of
1837 relocations we need for this symbol. */
1838 if (h != NULL)
1839 head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
1840 else
1841 {
1842 /* Track dynamic relocs needed for local syms too.
1843 We really need local syms available to do this
1844 easily. Oh well. */
1845 asection *s;
1846 void *vpp;
1847
1848 BFD_ASSERT (isym != NULL);
1849 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1850 if (s == NULL)
1851 s = sec;
1852
1853 vpp = &elf_section_data (s)->local_dynrel;
1854 head = (struct _bfd_sparc_elf_dyn_relocs **) vpp;
1855 }
1856
1857 p = *head;
1858 if (p == NULL || p->sec != sec)
1859 {
1860 bfd_size_type amt = sizeof *p;
1861 p = ((struct _bfd_sparc_elf_dyn_relocs *)
1862 bfd_alloc (htab->elf.dynobj, amt));
1863 if (p == NULL)
1864 return FALSE;
1865 p->next = *head;
1866 *head = p;
1867 p->sec = sec;
1868 p->count = 0;
1869 p->pc_count = 0;
1870 }
1871
1872 p->count += 1;
1873 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1874 p->pc_count += 1;
1875 }
1876
1877 break;
1878
1879 case R_SPARC_GNU_VTINHERIT:
1880 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1881 return FALSE;
1882 break;
1883
1884 case R_SPARC_GNU_VTENTRY:
1885 BFD_ASSERT (h != NULL);
1886 if (h != NULL
1887 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1888 return FALSE;
1889 break;
1890
1891 case R_SPARC_REGISTER:
1892 /* Nothing to do. */
1893 break;
1894
1895 default:
1896 break;
1897 }
1898 }
1899
1900 return TRUE;
1901 }
1902 \f
1903 asection *
1904 _bfd_sparc_elf_gc_mark_hook (asection *sec,
1905 struct bfd_link_info *info,
1906 Elf_Internal_Rela *rel,
1907 struct elf_link_hash_entry *h,
1908 Elf_Internal_Sym *sym)
1909 {
1910 if (h != NULL)
1911 switch (SPARC_ELF_R_TYPE (rel->r_info))
1912 {
1913 case R_SPARC_GNU_VTINHERIT:
1914 case R_SPARC_GNU_VTENTRY:
1915 return NULL;
1916 }
1917
1918 /* FIXME: The test here, in check_relocs and in relocate_section
1919 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1920 if (bfd_link_pic (info))
1921 {
1922 switch (SPARC_ELF_R_TYPE (rel->r_info))
1923 {
1924 case R_SPARC_TLS_GD_CALL:
1925 case R_SPARC_TLS_LDM_CALL:
1926 /* This reloc implicitly references __tls_get_addr. We know
1927 another reloc will reference the same symbol as the one
1928 on this reloc, so the real symbol and section will be
1929 gc marked when processing the other reloc. That lets
1930 us handle __tls_get_addr here. */
1931 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1932 FALSE, FALSE, TRUE);
1933 BFD_ASSERT (h != NULL);
1934 h->mark = 1;
1935 if (h->u.weakdef != NULL)
1936 h->u.weakdef->mark = 1;
1937 sym = NULL;
1938 }
1939 }
1940
1941 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1942 }
1943
1944 static Elf_Internal_Rela *
1945 sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
1946 Elf_Internal_Rela *relend,
1947 bfd_vma offset)
1948 {
1949 while (rel < relend)
1950 {
1951 if (rel->r_offset == offset)
1952 return rel;
1953 rel++;
1954 }
1955 return NULL;
1956 }
1957
1958 /* Update the got entry reference counts for the section being removed. */
1959 bfd_boolean
1960 _bfd_sparc_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
1961 asection *sec, const Elf_Internal_Rela *relocs)
1962 {
1963 struct _bfd_sparc_elf_link_hash_table *htab;
1964 Elf_Internal_Shdr *symtab_hdr;
1965 struct elf_link_hash_entry **sym_hashes;
1966 bfd_signed_vma *local_got_refcounts;
1967 const Elf_Internal_Rela *rel, *relend;
1968
1969 if (bfd_link_relocatable (info))
1970 return TRUE;
1971
1972 BFD_ASSERT (is_sparc_elf (abfd) || sec->reloc_count == 0);
1973
1974 elf_section_data (sec)->local_dynrel = NULL;
1975
1976 htab = _bfd_sparc_elf_hash_table (info);
1977 BFD_ASSERT (htab != NULL);
1978 symtab_hdr = &elf_symtab_hdr (abfd);
1979 sym_hashes = elf_sym_hashes (abfd);
1980 local_got_refcounts = elf_local_got_refcounts (abfd);
1981
1982 relend = relocs + sec->reloc_count;
1983 for (rel = relocs; rel < relend; rel++)
1984 {
1985 unsigned long r_symndx;
1986 unsigned int r_type;
1987 struct elf_link_hash_entry *h = NULL;
1988
1989 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1990 if (r_symndx >= symtab_hdr->sh_info)
1991 {
1992 struct _bfd_sparc_elf_link_hash_entry *eh;
1993 struct _bfd_sparc_elf_dyn_relocs **pp;
1994 struct _bfd_sparc_elf_dyn_relocs *p;
1995
1996 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1997 while (h->root.type == bfd_link_hash_indirect
1998 || h->root.type == bfd_link_hash_warning)
1999 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2000 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2001 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
2002 if (p->sec == sec)
2003 {
2004 /* Everything must go for SEC. */
2005 *pp = p->next;
2006 break;
2007 }
2008 }
2009
2010 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2011 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
2012 switch (r_type)
2013 {
2014 case R_SPARC_TLS_LDM_HI22:
2015 case R_SPARC_TLS_LDM_LO10:
2016 if (_bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount > 0)
2017 _bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount -= 1;
2018 break;
2019
2020 case R_SPARC_TLS_GD_HI22:
2021 case R_SPARC_TLS_GD_LO10:
2022 case R_SPARC_TLS_IE_HI22:
2023 case R_SPARC_TLS_IE_LO10:
2024 case R_SPARC_GOT10:
2025 case R_SPARC_GOT13:
2026 case R_SPARC_GOT22:
2027 case R_SPARC_GOTDATA_HIX22:
2028 case R_SPARC_GOTDATA_LOX10:
2029 case R_SPARC_GOTDATA_OP_HIX22:
2030 case R_SPARC_GOTDATA_OP_LOX10:
2031 if (h != NULL)
2032 {
2033 if (h->got.refcount > 0)
2034 h->got.refcount--;
2035 }
2036 else
2037 {
2038 switch (r_type)
2039 {
2040 case R_SPARC_GOTDATA_OP_HIX22:
2041 case R_SPARC_GOTDATA_OP_LOX10:
2042 break;
2043
2044 default:
2045 if (local_got_refcounts[r_symndx] > 0)
2046 local_got_refcounts[r_symndx]--;
2047 break;
2048 }
2049 }
2050 break;
2051
2052 case R_SPARC_PC10:
2053 case R_SPARC_PC22:
2054 case R_SPARC_PC_HH22:
2055 case R_SPARC_PC_HM10:
2056 case R_SPARC_PC_LM22:
2057 if (h != NULL
2058 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2059 break;
2060 /* Fall through. */
2061
2062 case R_SPARC_DISP8:
2063 case R_SPARC_DISP16:
2064 case R_SPARC_DISP32:
2065 case R_SPARC_DISP64:
2066 case R_SPARC_WDISP30:
2067 case R_SPARC_WDISP22:
2068 case R_SPARC_WDISP19:
2069 case R_SPARC_WDISP16:
2070 case R_SPARC_WDISP10:
2071 case R_SPARC_8:
2072 case R_SPARC_16:
2073 case R_SPARC_32:
2074 case R_SPARC_HI22:
2075 case R_SPARC_22:
2076 case R_SPARC_13:
2077 case R_SPARC_LO10:
2078 case R_SPARC_UA16:
2079 case R_SPARC_UA32:
2080 case R_SPARC_PLT32:
2081 case R_SPARC_10:
2082 case R_SPARC_11:
2083 case R_SPARC_64:
2084 case R_SPARC_OLO10:
2085 case R_SPARC_HH22:
2086 case R_SPARC_HM10:
2087 case R_SPARC_LM22:
2088 case R_SPARC_7:
2089 case R_SPARC_5:
2090 case R_SPARC_6:
2091 case R_SPARC_HIX22:
2092 case R_SPARC_LOX10:
2093 case R_SPARC_H44:
2094 case R_SPARC_M44:
2095 case R_SPARC_L44:
2096 case R_SPARC_H34:
2097 case R_SPARC_UA64:
2098 if (bfd_link_pic (info))
2099 break;
2100 /* Fall through. */
2101
2102 case R_SPARC_WPLT30:
2103 if (h != NULL)
2104 {
2105 if (h->plt.refcount > 0)
2106 h->plt.refcount--;
2107 }
2108 break;
2109
2110 default:
2111 break;
2112 }
2113 }
2114
2115 return TRUE;
2116 }
2117
2118 /* Remove undefined weak symbol from the dynamic symbol table if it
2119 is resolved to 0. */
2120
2121 bfd_boolean
2122 _bfd_sparc_elf_fixup_symbol (struct bfd_link_info *info,
2123 struct elf_link_hash_entry *h)
2124 {
2125 if (h->dynindx != -1
2126 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
2127 _bfd_sparc_elf_hash_entry (h)))
2128 {
2129 h->dynindx = -1;
2130 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
2131 h->dynstr_index);
2132 }
2133 return TRUE;
2134 }
2135
2136 /* Adjust a symbol defined by a dynamic object and referenced by a
2137 regular object. The current definition is in some section of the
2138 dynamic object, but we're not including those sections. We have to
2139 change the definition to something the rest of the link can
2140 understand. */
2141
2142 bfd_boolean
2143 _bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2144 struct elf_link_hash_entry *h)
2145 {
2146 struct _bfd_sparc_elf_link_hash_table *htab;
2147 struct _bfd_sparc_elf_link_hash_entry * eh;
2148 struct _bfd_sparc_elf_dyn_relocs *p;
2149 asection *s, *srel;
2150
2151 htab = _bfd_sparc_elf_hash_table (info);
2152 BFD_ASSERT (htab != NULL);
2153
2154 /* Make sure we know what is going on here. */
2155 BFD_ASSERT (htab->elf.dynobj != NULL
2156 && (h->needs_plt
2157 || h->type == STT_GNU_IFUNC
2158 || h->u.weakdef != NULL
2159 || (h->def_dynamic
2160 && h->ref_regular
2161 && !h->def_regular)));
2162
2163 /* If this is a function, put it in the procedure linkage table. We
2164 will fill in the contents of the procedure linkage table later
2165 (although we could actually do it here). The STT_NOTYPE
2166 condition is a hack specifically for the Oracle libraries
2167 delivered for Solaris; for some inexplicable reason, they define
2168 some of their functions as STT_NOTYPE when they really should be
2169 STT_FUNC. */
2170 if (h->type == STT_FUNC
2171 || h->type == STT_GNU_IFUNC
2172 || h->needs_plt
2173 || (h->type == STT_NOTYPE
2174 && (h->root.type == bfd_link_hash_defined
2175 || h->root.type == bfd_link_hash_defweak)
2176 && (h->root.u.def.section->flags & SEC_CODE) != 0))
2177 {
2178 if (h->plt.refcount <= 0
2179 || (h->type != STT_GNU_IFUNC
2180 && (SYMBOL_CALLS_LOCAL (info, h)
2181 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2182 && h->root.type == bfd_link_hash_undefweak))))
2183 {
2184 /* This case can occur if we saw a WPLT30 reloc in an input
2185 file, but the symbol was never referred to by a dynamic
2186 object, or if all references were garbage collected. In
2187 such a case, we don't actually need to build a procedure
2188 linkage table, and we can just do a WDISP30 reloc instead. */
2189 h->plt.offset = (bfd_vma) -1;
2190 h->needs_plt = 0;
2191 }
2192
2193 return TRUE;
2194 }
2195 else
2196 h->plt.offset = (bfd_vma) -1;
2197
2198 /* If this is a weak symbol, and there is a real definition, the
2199 processor independent code will have arranged for us to see the
2200 real definition first, and we can just use the same value. */
2201 if (h->u.weakdef != NULL)
2202 {
2203 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2204 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2205 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2206 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2207 return TRUE;
2208 }
2209
2210 /* This is a reference to a symbol defined by a dynamic object which
2211 is not a function. */
2212
2213 /* If we are creating a shared library, we must presume that the
2214 only references to the symbol are via the global offset table.
2215 For such cases we need not do anything here; the relocations will
2216 be handled correctly by relocate_section. */
2217 if (bfd_link_pic (info))
2218 return TRUE;
2219
2220 /* If there are no references to this symbol that do not use the
2221 GOT, we don't need to generate a copy reloc. */
2222 if (!h->non_got_ref)
2223 return TRUE;
2224
2225 /* If -z nocopyreloc was given, we won't generate them either. */
2226 if (info->nocopyreloc)
2227 {
2228 h->non_got_ref = 0;
2229 return TRUE;
2230 }
2231
2232 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2233 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2234 {
2235 s = p->sec->output_section;
2236 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2237 break;
2238 }
2239
2240 /* If we didn't find any dynamic relocs in read-only sections, then
2241 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2242 if (p == NULL)
2243 {
2244 h->non_got_ref = 0;
2245 return TRUE;
2246 }
2247
2248 /* We must allocate the symbol in our .dynbss section, which will
2249 become part of the .bss section of the executable. There will be
2250 an entry for this symbol in the .dynsym section. The dynamic
2251 object will contain position independent code, so all references
2252 from the dynamic object to this symbol will go through the global
2253 offset table. The dynamic linker will use the .dynsym entry to
2254 determine the address it must put in the global offset table, so
2255 both the dynamic object and the regular object will refer to the
2256 same memory location for the variable. */
2257
2258 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2259 to copy the initial value out of the dynamic object and into the
2260 runtime process image. We need to remember the offset into the
2261 .rel.bss section we are going to use. */
2262 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2263 {
2264 s = htab->elf.sdynrelro;
2265 srel = htab->elf.sreldynrelro;
2266 }
2267 else
2268 {
2269 s = htab->elf.sdynbss;
2270 srel = htab->elf.srelbss;
2271 }
2272 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2273 {
2274 srel->size += SPARC_ELF_RELA_BYTES (htab);
2275 h->needs_copy = 1;
2276 }
2277
2278 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2279 }
2280
2281 /* Allocate space in .plt, .got and associated reloc sections for
2282 dynamic relocs. */
2283
2284 static bfd_boolean
2285 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2286 {
2287 struct bfd_link_info *info;
2288 struct _bfd_sparc_elf_link_hash_table *htab;
2289 struct _bfd_sparc_elf_link_hash_entry *eh;
2290 struct _bfd_sparc_elf_dyn_relocs *p;
2291 bfd_boolean resolved_to_zero;
2292
2293 if (h->root.type == bfd_link_hash_indirect)
2294 return TRUE;
2295
2296 info = (struct bfd_link_info *) inf;
2297 htab = _bfd_sparc_elf_hash_table (info);
2298 BFD_ASSERT (htab != NULL);
2299
2300 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2301 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
2302
2303 if ((htab->elf.dynamic_sections_created
2304 && h->plt.refcount > 0)
2305 || (h->type == STT_GNU_IFUNC
2306 && h->def_regular
2307 && h->ref_regular))
2308 {
2309 /* Make sure this symbol is output as a dynamic symbol.
2310 Undefined weak syms won't yet be marked as dynamic. */
2311 if (h->dynindx == -1
2312 && !h->forced_local
2313 && !resolved_to_zero
2314 && h->root.type == bfd_link_hash_undefweak)
2315 {
2316 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2317 return FALSE;
2318 }
2319
2320 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
2321 || (h->type == STT_GNU_IFUNC
2322 && h->def_regular))
2323 {
2324 asection *s = htab->elf.splt;
2325
2326 if (s == NULL)
2327 s = htab->elf.iplt;
2328
2329 /* Allocate room for the header. */
2330 if (s->size == 0)
2331 {
2332 s->size = htab->plt_header_size;
2333
2334 /* Allocate space for the .rela.plt.unloaded relocations. */
2335 if (htab->is_vxworks && !bfd_link_pic (info))
2336 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2337 }
2338
2339 /* The procedure linkage table size is bounded by the magnitude
2340 of the offset we can describe in the entry. */
2341 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
2342 (((bfd_vma)1 << 31) << 1) : 0x400000))
2343 {
2344 bfd_set_error (bfd_error_bad_value);
2345 return FALSE;
2346 }
2347
2348 if (SPARC_ELF_WORD_BYTES(htab) == 8
2349 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2350 {
2351 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2352
2353
2354 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2355
2356 h->plt.offset = (s->size - (off * 8));
2357 }
2358 else
2359 h->plt.offset = s->size;
2360
2361 /* If this symbol is not defined in a regular file, and we are
2362 not generating a shared library, then set the symbol to this
2363 location in the .plt. This is required to make function
2364 pointers compare as equal between the normal executable and
2365 the shared library. */
2366 if (! bfd_link_pic (info)
2367 && !h->def_regular)
2368 {
2369 h->root.u.def.section = s;
2370 h->root.u.def.value = h->plt.offset;
2371 }
2372
2373 /* Make room for this entry. */
2374 s->size += htab->plt_entry_size;
2375
2376 /* There should be no PLT relocations against resolved undefined
2377 weak symbols in the executable. */
2378 if (!resolved_to_zero)
2379 {
2380 /* We also need to make an entry in the .rela.plt section. */
2381 if (s == htab->elf.splt)
2382 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
2383 else
2384 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
2385 }
2386
2387 if (htab->is_vxworks)
2388 {
2389 /* Allocate space for the .got.plt entry. */
2390 htab->elf.sgotplt->size += 4;
2391
2392 /* ...and for the .rela.plt.unloaded relocations. */
2393 if (!bfd_link_pic (info))
2394 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2395 }
2396 }
2397 else
2398 {
2399 h->plt.offset = (bfd_vma) -1;
2400 h->needs_plt = 0;
2401 }
2402 }
2403 else
2404 {
2405 h->plt.offset = (bfd_vma) -1;
2406 h->needs_plt = 0;
2407 }
2408
2409 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2410 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2411 if (h->got.refcount > 0
2412 && !bfd_link_pic (info)
2413 && h->dynindx == -1
2414 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2415 h->got.offset = (bfd_vma) -1;
2416 else if (h->got.refcount > 0)
2417 {
2418 asection *s;
2419 bfd_boolean dyn;
2420 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2421
2422 /* Make sure this symbol is output as a dynamic symbol.
2423 Undefined weak syms won't yet be marked as dynamic. */
2424 if (h->dynindx == -1
2425 && !h->forced_local
2426 && !resolved_to_zero
2427 && h->root.type == bfd_link_hash_undefweak)
2428 {
2429 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2430 return FALSE;
2431 }
2432
2433 s = htab->elf.sgot;
2434 h->got.offset = s->size;
2435 s->size += SPARC_ELF_WORD_BYTES (htab);
2436 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2437 if (tls_type == GOT_TLS_GD)
2438 s->size += SPARC_ELF_WORD_BYTES (htab);
2439 dyn = htab->elf.dynamic_sections_created;
2440 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2441 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
2442 global. No dynamic relocations are needed against resolved
2443 undefined weak symbols in an executable. */
2444 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
2445 || tls_type == GOT_TLS_IE
2446 || h->type == STT_GNU_IFUNC)
2447 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2448 else if (tls_type == GOT_TLS_GD)
2449 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
2450 else if (((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2451 && !resolved_to_zero)
2452 || h->root.type != bfd_link_hash_undefweak)
2453 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2454 bfd_link_pic (info),
2455 h))
2456 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2457 }
2458 else
2459 h->got.offset = (bfd_vma) -1;
2460
2461 if (eh->dyn_relocs == NULL)
2462 return TRUE;
2463
2464 /* In the shared -Bsymbolic case, discard space allocated for
2465 dynamic pc-relative relocs against symbols which turn out to be
2466 defined in regular objects. For the normal shared case, discard
2467 space for pc-relative relocs that have become local due to symbol
2468 visibility changes. */
2469
2470 if (bfd_link_pic (info))
2471 {
2472 if (SYMBOL_CALLS_LOCAL (info, h))
2473 {
2474 struct _bfd_sparc_elf_dyn_relocs **pp;
2475
2476 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2477 {
2478 p->count -= p->pc_count;
2479 p->pc_count = 0;
2480 if (p->count == 0)
2481 *pp = p->next;
2482 else
2483 pp = &p->next;
2484 }
2485 }
2486
2487 if (htab->is_vxworks)
2488 {
2489 struct _bfd_sparc_elf_dyn_relocs **pp;
2490
2491 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2492 {
2493 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2494 *pp = p->next;
2495 else
2496 pp = &p->next;
2497 }
2498 }
2499
2500 /* Also discard relocs on undefined weak syms with non-default
2501 visibility or in PIE. */
2502 if (eh->dyn_relocs != NULL
2503 && h->root.type == bfd_link_hash_undefweak)
2504 {
2505 /* An undefined weak symbol is never
2506 bound locally in a shared library. */
2507
2508 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2509 || resolved_to_zero)
2510 {
2511 if (h->non_got_ref)
2512 {
2513 /* Keep dynamic non-GOT/non-PLT relocation so that we
2514 can branch to 0 without PLT. */
2515 struct _bfd_sparc_elf_dyn_relocs **pp;
2516
2517 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2518 if (p->pc_count == 0)
2519 *pp = p->next;
2520 else
2521 {
2522 /* Remove other relocations. */
2523 p->count = p->pc_count;
2524 pp = &p->next;
2525 }
2526
2527 if (eh->dyn_relocs != NULL)
2528 {
2529 /* Make sure undefined weak symbols are output
2530 as dynamic symbols in PIEs for dynamic non-GOT
2531 non-PLT reloations. */
2532 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2533 return FALSE;
2534 }
2535 }
2536 else
2537 eh->dyn_relocs = NULL;
2538 }
2539
2540 /* Make sure undefined weak symbols are output as a dynamic
2541 symbol in PIEs. */
2542 else if (h->dynindx == -1
2543 && !h->forced_local)
2544 {
2545 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2546 return FALSE;
2547 }
2548 }
2549 }
2550 else
2551 {
2552 /* For the non-shared case, discard space for relocs against
2553 symbols which turn out to need copy relocs or are not
2554 dynamic. */
2555
2556 if ((!h->non_got_ref
2557 || (h->root.type == bfd_link_hash_undefweak
2558 && !resolved_to_zero))
2559 && ((h->def_dynamic
2560 && !h->def_regular)
2561 || (htab->elf.dynamic_sections_created
2562 && (h->root.type == bfd_link_hash_undefweak
2563 || h->root.type == bfd_link_hash_undefined))))
2564 {
2565 /* Make sure this symbol is output as a dynamic symbol.
2566 Undefined weak syms won't yet be marked as dynamic. */
2567 if (h->dynindx == -1
2568 && !h->forced_local
2569 && !resolved_to_zero
2570 && h->root.type == bfd_link_hash_undefweak)
2571 {
2572 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2573 return FALSE;
2574 }
2575
2576 /* If that succeeded, we know we'll be keeping all the
2577 relocs. */
2578 if (h->dynindx != -1)
2579 goto keep;
2580 }
2581
2582 eh->dyn_relocs = NULL;
2583
2584 keep: ;
2585 }
2586
2587 /* Finally, allocate space. */
2588 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2589 {
2590 asection *sreloc = elf_section_data (p->sec)->sreloc;
2591 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2592 }
2593
2594 return TRUE;
2595 }
2596
2597 /* Allocate space in .plt, .got and associated reloc sections for
2598 local dynamic relocs. */
2599
2600 static bfd_boolean
2601 allocate_local_dynrelocs (void **slot, void *inf)
2602 {
2603 struct elf_link_hash_entry *h
2604 = (struct elf_link_hash_entry *) *slot;
2605
2606 if (h->type != STT_GNU_IFUNC
2607 || !h->def_regular
2608 || !h->ref_regular
2609 || !h->forced_local
2610 || h->root.type != bfd_link_hash_defined)
2611 abort ();
2612
2613 return allocate_dynrelocs (h, inf);
2614 }
2615
2616 /* Find any dynamic relocs that apply to read-only sections. */
2617
2618 static bfd_boolean
2619 readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2620 {
2621 struct _bfd_sparc_elf_link_hash_entry *eh;
2622 struct _bfd_sparc_elf_dyn_relocs *p;
2623
2624 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2625 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2626 {
2627 asection *s = p->sec->output_section;
2628
2629 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2630 {
2631 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2632
2633 info->flags |= DF_TEXTREL;
2634
2635 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2636 p->sec->owner, p->sec);
2637
2638 /* Not an error, just cut short the traversal. */
2639 return FALSE;
2640 }
2641 }
2642 return TRUE;
2643 }
2644
2645 /* Return true if the dynamic symbol for a given section should be
2646 omitted when creating a shared library. */
2647
2648 bfd_boolean
2649 _bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2650 struct bfd_link_info *info,
2651 asection *p)
2652 {
2653 /* We keep the .got section symbol so that explicit relocations
2654 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2655 can be turned into relocations against the .got symbol. */
2656 if (strcmp (p->name, ".got") == 0)
2657 return FALSE;
2658
2659 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2660 }
2661
2662 /* Set the sizes of the dynamic sections. */
2663
2664 bfd_boolean
2665 _bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2666 struct bfd_link_info *info)
2667 {
2668 struct _bfd_sparc_elf_link_hash_table *htab;
2669 bfd *dynobj;
2670 asection *s;
2671 bfd *ibfd;
2672
2673 htab = _bfd_sparc_elf_hash_table (info);
2674 BFD_ASSERT (htab != NULL);
2675 dynobj = htab->elf.dynobj;
2676 BFD_ASSERT (dynobj != NULL);
2677
2678 if (elf_hash_table (info)->dynamic_sections_created)
2679 {
2680 /* Set the contents of the .interp section to the interpreter. */
2681 if (bfd_link_executable (info) && !info->nointerp)
2682 {
2683 s = bfd_get_linker_section (dynobj, ".interp");
2684 BFD_ASSERT (s != NULL);
2685 s->size = htab->dynamic_interpreter_size;
2686 s->contents = (unsigned char *) htab->dynamic_interpreter;
2687 htab->interp = s;
2688 }
2689 }
2690
2691 /* Set up .got offsets for local syms, and space for local dynamic
2692 relocs. */
2693 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2694 {
2695 bfd_signed_vma *local_got;
2696 bfd_signed_vma *end_local_got;
2697 char *local_tls_type;
2698 bfd_size_type locsymcount;
2699 Elf_Internal_Shdr *symtab_hdr;
2700 asection *srel;
2701
2702 if (! is_sparc_elf (ibfd))
2703 continue;
2704
2705 for (s = ibfd->sections; s != NULL; s = s->next)
2706 {
2707 struct _bfd_sparc_elf_dyn_relocs *p;
2708
2709 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2710 {
2711 if (!bfd_is_abs_section (p->sec)
2712 && bfd_is_abs_section (p->sec->output_section))
2713 {
2714 /* Input section has been discarded, either because
2715 it is a copy of a linkonce section or due to
2716 linker script /DISCARD/, so we'll be discarding
2717 the relocs too. */
2718 }
2719 else if (htab->is_vxworks
2720 && strcmp (p->sec->output_section->name,
2721 ".tls_vars") == 0)
2722 {
2723 /* Relocations in vxworks .tls_vars sections are
2724 handled specially by the loader. */
2725 }
2726 else if (p->count != 0)
2727 {
2728 srel = elf_section_data (p->sec)->sreloc;
2729 if (!htab->elf.dynamic_sections_created)
2730 srel = htab->elf.irelplt;
2731 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2732 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2733 {
2734 info->flags |= DF_TEXTREL;
2735 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2736 p->sec->owner, p->sec);
2737 }
2738
2739 /* Not an error, just cut short the traversal. */
2740 }
2741 }
2742 }
2743
2744 local_got = elf_local_got_refcounts (ibfd);
2745 if (!local_got)
2746 continue;
2747
2748 symtab_hdr = &elf_symtab_hdr (ibfd);
2749 locsymcount = symtab_hdr->sh_info;
2750 end_local_got = local_got + locsymcount;
2751 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
2752 s = htab->elf.sgot;
2753 srel = htab->elf.srelgot;
2754 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2755 {
2756 if (*local_got > 0)
2757 {
2758 *local_got = s->size;
2759 s->size += SPARC_ELF_WORD_BYTES (htab);
2760 if (*local_tls_type == GOT_TLS_GD)
2761 s->size += SPARC_ELF_WORD_BYTES (htab);
2762 if (bfd_link_pic (info)
2763 || *local_tls_type == GOT_TLS_GD
2764 || *local_tls_type == GOT_TLS_IE)
2765 srel->size += SPARC_ELF_RELA_BYTES (htab);
2766 }
2767 else
2768 *local_got = (bfd_vma) -1;
2769 }
2770 }
2771
2772 if (htab->tls_ldm_got.refcount > 0)
2773 {
2774 /* Allocate 2 got entries and 1 dynamic reloc for
2775 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
2776 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2777 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2778 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2779 }
2780 else
2781 htab->tls_ldm_got.offset = -1;
2782
2783 /* Allocate global sym .plt and .got entries, and space for global
2784 sym dynamic relocs. */
2785 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2786
2787 /* Allocate .plt and .got entries, and space for local symbols. */
2788 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2789
2790 if (! ABI_64_P (output_bfd)
2791 && !htab->is_vxworks
2792 && elf_hash_table (info)->dynamic_sections_created)
2793 {
2794 /* Make space for the trailing nop in .plt. */
2795 if (htab->elf.splt->size > 0)
2796 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
2797
2798 /* If the .got section is more than 0x1000 bytes, we add
2799 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2800 bit relocations have a greater chance of working.
2801
2802 FIXME: Make this optimization work for 64-bit too. */
2803 if (htab->elf.sgot->size >= 0x1000
2804 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2805 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2806 }
2807
2808 /* The check_relocs and adjust_dynamic_symbol entry points have
2809 determined the sizes of the various dynamic sections. Allocate
2810 memory for them. */
2811 for (s = dynobj->sections; s != NULL; s = s->next)
2812 {
2813 if ((s->flags & SEC_LINKER_CREATED) == 0)
2814 continue;
2815
2816 if (s == htab->elf.splt
2817 || s == htab->elf.sgot
2818 || s == htab->elf.sdynbss
2819 || s == htab->elf.sdynrelro
2820 || s == htab->elf.iplt
2821 || s == htab->elf.sgotplt)
2822 {
2823 /* Strip this section if we don't need it; see the
2824 comment below. */
2825 }
2826 else if (CONST_STRNEQ (s->name, ".rela"))
2827 {
2828 if (s->size != 0)
2829 {
2830 /* We use the reloc_count field as a counter if we need
2831 to copy relocs into the output file. */
2832 s->reloc_count = 0;
2833 }
2834 }
2835 else
2836 {
2837 /* It's not one of our sections. */
2838 continue;
2839 }
2840
2841 if (s->size == 0)
2842 {
2843 /* If we don't need this section, strip it from the
2844 output file. This is mostly to handle .rela.bss and
2845 .rela.plt. We must create both sections in
2846 create_dynamic_sections, because they must be created
2847 before the linker maps input sections to output
2848 sections. The linker does that before
2849 adjust_dynamic_symbol is called, and it is that
2850 function which decides whether anything needs to go
2851 into these sections. */
2852 s->flags |= SEC_EXCLUDE;
2853 continue;
2854 }
2855
2856 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2857 continue;
2858
2859 /* Allocate memory for the section contents. Zero the memory
2860 for the benefit of .rela.plt, which has 4 unused entries
2861 at the beginning, and we don't want garbage. */
2862 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2863 if (s->contents == NULL)
2864 return FALSE;
2865 }
2866
2867 if (elf_hash_table (info)->dynamic_sections_created)
2868 {
2869 /* Add some entries to the .dynamic section. We fill in the
2870 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2871 must add the entries now so that we get the correct size for
2872 the .dynamic section. The DT_DEBUG entry is filled in by the
2873 dynamic linker and used by the debugger. */
2874 #define add_dynamic_entry(TAG, VAL) \
2875 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2876
2877 if (bfd_link_executable (info))
2878 {
2879 if (!add_dynamic_entry (DT_DEBUG, 0))
2880 return FALSE;
2881 }
2882
2883 if (htab->elf.srelplt->size != 0)
2884 {
2885 if (!add_dynamic_entry (DT_PLTGOT, 0)
2886 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2887 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2888 || !add_dynamic_entry (DT_JMPREL, 0))
2889 return FALSE;
2890 }
2891
2892 if (!add_dynamic_entry (DT_RELA, 0)
2893 || !add_dynamic_entry (DT_RELASZ, 0)
2894 || !add_dynamic_entry (DT_RELAENT,
2895 SPARC_ELF_RELA_BYTES (htab)))
2896 return FALSE;
2897
2898 /* If any dynamic relocs apply to a read-only section,
2899 then we need a DT_TEXTREL entry. */
2900 if ((info->flags & DF_TEXTREL) == 0)
2901 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
2902
2903 if (info->flags & DF_TEXTREL)
2904 {
2905 if (!add_dynamic_entry (DT_TEXTREL, 0))
2906 return FALSE;
2907 }
2908
2909 if (ABI_64_P (output_bfd))
2910 {
2911 int reg;
2912 struct _bfd_sparc_elf_app_reg * app_regs;
2913 struct elf_strtab_hash *dynstr;
2914 struct elf_link_hash_table *eht = elf_hash_table (info);
2915
2916 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2917 entries if needed. */
2918 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2919 dynstr = eht->dynstr;
2920
2921 for (reg = 0; reg < 4; reg++)
2922 if (app_regs [reg].name != NULL)
2923 {
2924 struct elf_link_local_dynamic_entry *entry, *e;
2925
2926 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2927 return FALSE;
2928
2929 entry = (struct elf_link_local_dynamic_entry *)
2930 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2931 if (entry == NULL)
2932 return FALSE;
2933
2934 /* We cheat here a little bit: the symbol will not be local, so we
2935 put it at the end of the dynlocal linked list. We will fix it
2936 later on, as we have to fix other fields anyway. */
2937 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2938 entry->isym.st_size = 0;
2939 if (*app_regs [reg].name != '\0')
2940 entry->isym.st_name
2941 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2942 else
2943 entry->isym.st_name = 0;
2944 entry->isym.st_other = 0;
2945 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2946 STT_REGISTER);
2947 entry->isym.st_shndx = app_regs [reg].shndx;
2948 entry->isym.st_target_internal = 0;
2949 entry->next = NULL;
2950 entry->input_bfd = output_bfd;
2951 entry->input_indx = -1;
2952
2953 if (eht->dynlocal == NULL)
2954 eht->dynlocal = entry;
2955 else
2956 {
2957 for (e = eht->dynlocal; e->next; e = e->next)
2958 ;
2959 e->next = entry;
2960 }
2961 eht->dynsymcount++;
2962 }
2963 }
2964 if (htab->is_vxworks
2965 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2966 return FALSE;
2967 }
2968 #undef add_dynamic_entry
2969
2970 return TRUE;
2971 }
2972 \f
2973 bfd_boolean
2974 _bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2975 {
2976 if (!sec->used_by_bfd)
2977 {
2978 struct _bfd_sparc_elf_section_data *sdata;
2979 bfd_size_type amt = sizeof (*sdata);
2980
2981 sdata = bfd_zalloc (abfd, amt);
2982 if (sdata == NULL)
2983 return FALSE;
2984 sec->used_by_bfd = sdata;
2985 }
2986
2987 return _bfd_elf_new_section_hook (abfd, sec);
2988 }
2989
2990 bfd_boolean
2991 _bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2992 struct bfd_section *section,
2993 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2994 bfd_boolean *again)
2995 {
2996 if (bfd_link_relocatable (link_info))
2997 (*link_info->callbacks->einfo)
2998 (_("%P%F: --relax and -r may not be used together\n"));
2999
3000 *again = FALSE;
3001 sec_do_relax (section) = 1;
3002 return TRUE;
3003 }
3004 \f
3005 /* Return the base VMA address which should be subtracted from real addresses
3006 when resolving @dtpoff relocation.
3007 This is PT_TLS segment p_vaddr. */
3008
3009 static bfd_vma
3010 dtpoff_base (struct bfd_link_info *info)
3011 {
3012 /* If tls_sec is NULL, we should have signalled an error already. */
3013 if (elf_hash_table (info)->tls_sec == NULL)
3014 return 0;
3015 return elf_hash_table (info)->tls_sec->vma;
3016 }
3017
3018 /* Return the relocation value for @tpoff relocation
3019 if STT_TLS virtual address is ADDRESS. */
3020
3021 static bfd_vma
3022 tpoff (struct bfd_link_info *info, bfd_vma address)
3023 {
3024 struct elf_link_hash_table *htab = elf_hash_table (info);
3025 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
3026 bfd_vma static_tls_size;
3027
3028 /* If tls_sec is NULL, we should have signalled an error already. */
3029 if (htab->tls_sec == NULL)
3030 return 0;
3031
3032 /* Consider special static TLS alignment requirements. */
3033 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
3034 return address - static_tls_size - htab->tls_sec->vma;
3035 }
3036
3037 /* Return the relocation value for a %gdop relocation. */
3038
3039 static bfd_vma
3040 gdopoff (struct bfd_link_info *info, bfd_vma address)
3041 {
3042 struct elf_link_hash_table *htab = elf_hash_table (info);
3043 bfd_vma got_base;
3044
3045 got_base = (htab->hgot->root.u.def.value
3046 + htab->hgot->root.u.def.section->output_offset
3047 + htab->hgot->root.u.def.section->output_section->vma);
3048
3049 return address - got_base;
3050 }
3051
3052 /* Return whether H is local and its ADDRESS is within 4G of
3053 _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
3054 sethi, xor sequence. */
3055
3056 static bfd_boolean
3057 gdop_relative_offset_ok (struct bfd_link_info *info,
3058 struct elf_link_hash_entry *h,
3059 bfd_vma address ATTRIBUTE_UNUSED)
3060 {
3061 if (!SYMBOL_REFERENCES_LOCAL (info, h))
3062 return FALSE;
3063 /* If H is undefined, ADDRESS will be zero. We can't allow a
3064 relative offset to "zero" when producing PIEs or shared libs.
3065 Note that to get here with an undefined symbol it must also be
3066 hidden or internal visibility. */
3067 if (bfd_link_pic (info)
3068 && h != NULL
3069 && (h->root.type == bfd_link_hash_undefweak
3070 || h->root.type == bfd_link_hash_undefined))
3071 return FALSE;
3072 #ifdef BFD64
3073 return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
3074 #else
3075 return TRUE;
3076 #endif
3077 }
3078
3079 /* Relocate a SPARC ELF section. */
3080
3081 bfd_boolean
3082 _bfd_sparc_elf_relocate_section (bfd *output_bfd,
3083 struct bfd_link_info *info,
3084 bfd *input_bfd,
3085 asection *input_section,
3086 bfd_byte *contents,
3087 Elf_Internal_Rela *relocs,
3088 Elf_Internal_Sym *local_syms,
3089 asection **local_sections)
3090 {
3091 struct _bfd_sparc_elf_link_hash_table *htab;
3092 Elf_Internal_Shdr *symtab_hdr;
3093 struct elf_link_hash_entry **sym_hashes;
3094 bfd_vma *local_got_offsets;
3095 bfd_vma got_base;
3096 asection *sreloc;
3097 Elf_Internal_Rela *rel;
3098 Elf_Internal_Rela *relend;
3099 int num_relocs;
3100 bfd_boolean is_vxworks_tls;
3101
3102 htab = _bfd_sparc_elf_hash_table (info);
3103 BFD_ASSERT (htab != NULL);
3104 symtab_hdr = &elf_symtab_hdr (input_bfd);
3105 sym_hashes = elf_sym_hashes (input_bfd);
3106 local_got_offsets = elf_local_got_offsets (input_bfd);
3107
3108 if (elf_hash_table (info)->hgot == NULL)
3109 got_base = 0;
3110 else
3111 got_base = elf_hash_table (info)->hgot->root.u.def.value;
3112
3113 sreloc = elf_section_data (input_section)->sreloc;
3114 /* We have to handle relocations in vxworks .tls_vars sections
3115 specially, because the dynamic loader is 'weird'. */
3116 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3117 && !strcmp (input_section->output_section->name,
3118 ".tls_vars"));
3119
3120 rel = relocs;
3121 if (ABI_64_P (output_bfd))
3122 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
3123 else
3124 num_relocs = input_section->reloc_count;
3125 relend = relocs + num_relocs;
3126 for (; rel < relend; rel++)
3127 {
3128 int r_type, tls_type;
3129 reloc_howto_type *howto;
3130 unsigned long r_symndx;
3131 struct elf_link_hash_entry *h;
3132 struct _bfd_sparc_elf_link_hash_entry *eh;
3133 Elf_Internal_Sym *sym;
3134 asection *sec;
3135 bfd_vma relocation, off;
3136 bfd_reloc_status_type r;
3137 bfd_boolean is_plt = FALSE;
3138 bfd_boolean unresolved_reloc;
3139 bfd_boolean resolved_to_zero;
3140 bfd_boolean relative_reloc;
3141
3142 r_type = SPARC_ELF_R_TYPE (rel->r_info);
3143 if (r_type == R_SPARC_GNU_VTINHERIT
3144 || r_type == R_SPARC_GNU_VTENTRY)
3145 continue;
3146
3147 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
3148 {
3149 bfd_set_error (bfd_error_bad_value);
3150 return FALSE;
3151 }
3152 howto = _bfd_sparc_elf_howto_table + r_type;
3153
3154 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
3155 h = NULL;
3156 sym = NULL;
3157 sec = NULL;
3158 unresolved_reloc = FALSE;
3159 if (r_symndx < symtab_hdr->sh_info)
3160 {
3161 sym = local_syms + r_symndx;
3162 sec = local_sections[r_symndx];
3163 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
3164
3165 if (!bfd_link_relocatable (info)
3166 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
3167 {
3168 /* Relocate against local STT_GNU_IFUNC symbol. */
3169 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
3170 rel, FALSE);
3171 if (h == NULL)
3172 abort ();
3173
3174 /* Set STT_GNU_IFUNC symbol value. */
3175 h->root.u.def.value = sym->st_value;
3176 h->root.u.def.section = sec;
3177 }
3178 }
3179 else
3180 {
3181 bfd_boolean warned, ignored;
3182
3183 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3184 r_symndx, symtab_hdr, sym_hashes,
3185 h, sec, relocation,
3186 unresolved_reloc, warned, ignored);
3187 if (warned)
3188 {
3189 /* To avoid generating warning messages about truncated
3190 relocations, set the relocation's address to be the same as
3191 the start of this section. */
3192 if (input_section->output_section != NULL)
3193 relocation = input_section->output_section->vma;
3194 else
3195 relocation = 0;
3196 }
3197 }
3198
3199 if (sec != NULL && discarded_section (sec))
3200 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3201 rel, 1, relend, howto, 0, contents);
3202
3203 if (bfd_link_relocatable (info))
3204 continue;
3205
3206 if (h != NULL
3207 && h->type == STT_GNU_IFUNC
3208 && h->def_regular)
3209 {
3210 asection *plt_sec;
3211 const char *name;
3212
3213 if ((input_section->flags & SEC_ALLOC) == 0
3214 || h->plt.offset == (bfd_vma) -1)
3215 abort ();
3216
3217 plt_sec = htab->elf.splt;
3218 if (! plt_sec)
3219 plt_sec =htab->elf.iplt;
3220
3221 switch (r_type)
3222 {
3223 case R_SPARC_GOTDATA_OP:
3224 continue;
3225
3226 case R_SPARC_GOTDATA_OP_HIX22:
3227 case R_SPARC_GOTDATA_OP_LOX10:
3228 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3229 ? R_SPARC_GOT22
3230 : R_SPARC_GOT10);
3231 howto = _bfd_sparc_elf_howto_table + r_type;
3232 /* Fall through. */
3233
3234 case R_SPARC_GOT10:
3235 case R_SPARC_GOT13:
3236 case R_SPARC_GOT22:
3237 if (htab->elf.sgot == NULL)
3238 abort ();
3239 off = h->got.offset;
3240 if (off == (bfd_vma) -1)
3241 abort();
3242 relocation = htab->elf.sgot->output_offset + off - got_base;
3243 goto do_relocation;
3244
3245 case R_SPARC_WPLT30:
3246 case R_SPARC_WDISP30:
3247 relocation = (plt_sec->output_section->vma
3248 + plt_sec->output_offset + h->plt.offset);
3249 goto do_relocation;
3250
3251 case R_SPARC_32:
3252 case R_SPARC_64:
3253 if (bfd_link_pic (info) && h->non_got_ref)
3254 {
3255 Elf_Internal_Rela outrel;
3256 bfd_vma offset;
3257
3258 offset = _bfd_elf_section_offset (output_bfd, info,
3259 input_section,
3260 rel->r_offset);
3261 if (offset == (bfd_vma) -1
3262 || offset == (bfd_vma) -2)
3263 abort();
3264
3265 outrel.r_offset = (input_section->output_section->vma
3266 + input_section->output_offset
3267 + offset);
3268
3269 if (h->dynindx == -1
3270 || h->forced_local
3271 || bfd_link_executable (info))
3272 {
3273 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3274 0, R_SPARC_IRELATIVE);
3275 outrel.r_addend = relocation + rel->r_addend;
3276 }
3277 else
3278 {
3279 if (h->dynindx == -1)
3280 abort();
3281 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3282 outrel.r_addend = rel->r_addend;
3283 }
3284
3285 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3286 continue;
3287 }
3288
3289 relocation = (plt_sec->output_section->vma
3290 + plt_sec->output_offset + h->plt.offset);
3291 goto do_relocation;
3292
3293 case R_SPARC_HI22:
3294 case R_SPARC_LO10:
3295 /* We should only see such relocs in static links. */
3296 if (bfd_link_pic (info))
3297 abort();
3298 relocation = (plt_sec->output_section->vma
3299 + plt_sec->output_offset + h->plt.offset);
3300 goto do_relocation;
3301
3302 default:
3303 if (h->root.root.string)
3304 name = h->root.root.string;
3305 else
3306 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3307 NULL);
3308 _bfd_error_handler
3309 /* xgettext:c-format */
3310 (_("%B: relocation %s against STT_GNU_IFUNC "
3311 "symbol `%s' isn't handled by %s"), input_bfd,
3312 _bfd_sparc_elf_howto_table[r_type].name,
3313 name, __FUNCTION__);
3314 bfd_set_error (bfd_error_bad_value);
3315 return FALSE;
3316 }
3317 }
3318
3319 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
3320 resolved_to_zero = (eh != NULL
3321 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh));
3322
3323 switch (r_type)
3324 {
3325 case R_SPARC_GOTDATA_OP_HIX22:
3326 case R_SPARC_GOTDATA_OP_LOX10:
3327 if (gdop_relative_offset_ok (info, h, relocation))
3328 {
3329 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3330 ? R_SPARC_GOTDATA_HIX22
3331 : R_SPARC_GOTDATA_LOX10);
3332 howto = _bfd_sparc_elf_howto_table + r_type;
3333 }
3334 break;
3335
3336 case R_SPARC_GOTDATA_OP:
3337 if (gdop_relative_offset_ok (info, h, relocation))
3338 {
3339 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3340
3341 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3342 relocation = 0x80000000 | (insn & 0x3e07c01f);
3343 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3344 }
3345 continue;
3346 }
3347
3348 switch (r_type)
3349 {
3350 case R_SPARC_GOTDATA_HIX22:
3351 case R_SPARC_GOTDATA_LOX10:
3352 relocation = gdopoff (info, relocation);
3353 break;
3354
3355 case R_SPARC_GOTDATA_OP_HIX22:
3356 case R_SPARC_GOTDATA_OP_LOX10:
3357 case R_SPARC_GOT10:
3358 case R_SPARC_GOT13:
3359 case R_SPARC_GOT22:
3360 /* Relocation is to the entry for this symbol in the global
3361 offset table. */
3362 if (htab->elf.sgot == NULL)
3363 abort ();
3364
3365 relative_reloc = FALSE;
3366 if (h != NULL)
3367 {
3368 bfd_boolean dyn;
3369
3370 off = h->got.offset;
3371 BFD_ASSERT (off != (bfd_vma) -1);
3372 dyn = elf_hash_table (info)->dynamic_sections_created;
3373
3374 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3375 bfd_link_pic (info),
3376 h)
3377 || (bfd_link_pic (info)
3378 && SYMBOL_REFERENCES_LOCAL (info, h)))
3379 {
3380 /* This is actually a static link, or it is a
3381 -Bsymbolic link and the symbol is defined
3382 locally, or the symbol was forced to be local
3383 because of a version file. We must initialize
3384 this entry in the global offset table. Since the
3385 offset must always be a multiple of 8 for 64-bit
3386 and 4 for 32-bit, we use the least significant bit
3387 to record whether we have initialized it already.
3388
3389 When doing a dynamic link, we create a .rela.got
3390 relocation entry to initialize the value. This
3391 is done in the finish_dynamic_symbol routine. */
3392 if ((off & 1) != 0)
3393 off &= ~1;
3394 else
3395 {
3396 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3397 htab->elf.sgot->contents + off);
3398 h->got.offset |= 1;
3399
3400 if (h->dynindx == -1
3401 && !h->forced_local
3402 && h->root.type != bfd_link_hash_undefweak
3403 && bfd_link_pic (info))
3404 {
3405 /* If this symbol isn't dynamic in PIC
3406 generate R_SPARC_RELATIVE here. */
3407 relative_reloc = TRUE;
3408 }
3409 }
3410 }
3411 else
3412 unresolved_reloc = FALSE;
3413 }
3414 else
3415 {
3416 BFD_ASSERT (local_got_offsets != NULL
3417 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3418
3419 off = local_got_offsets[r_symndx];
3420
3421 /* The offset must always be a multiple of 8 on 64-bit and
3422 4 on 32-bit. We use the least significant bit to record
3423 whether we have already processed this entry. */
3424 if ((off & 1) != 0)
3425 off &= ~1;
3426 else
3427 {
3428 if (bfd_link_pic (info))
3429 {
3430 relative_reloc = TRUE;
3431 }
3432
3433 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3434 htab->elf.sgot->contents + off);
3435 local_got_offsets[r_symndx] |= 1;
3436 }
3437 }
3438
3439 if (relative_reloc)
3440 {
3441 asection *s;
3442 Elf_Internal_Rela outrel;
3443
3444 /* We need to generate a R_SPARC_RELATIVE reloc
3445 for the dynamic linker. */
3446 s = htab->elf.srelgot;
3447 BFD_ASSERT (s != NULL);
3448
3449 outrel.r_offset = (htab->elf.sgot->output_section->vma
3450 + htab->elf.sgot->output_offset
3451 + off);
3452 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3453 0, R_SPARC_RELATIVE);
3454 outrel.r_addend = relocation;
3455 relocation = 0;
3456 sparc_elf_append_rela (output_bfd, s, &outrel);
3457 }
3458
3459 relocation = htab->elf.sgot->output_offset + off - got_base;
3460 break;
3461
3462 case R_SPARC_PLT32:
3463 case R_SPARC_PLT64:
3464 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3465 {
3466 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3467 goto r_sparc_plt32;
3468 }
3469 /* Fall through. */
3470
3471 case R_SPARC_WPLT30:
3472 case R_SPARC_HIPLT22:
3473 case R_SPARC_LOPLT10:
3474 case R_SPARC_PCPLT32:
3475 case R_SPARC_PCPLT22:
3476 case R_SPARC_PCPLT10:
3477 r_sparc_wplt30:
3478 /* Relocation is to the entry for this symbol in the
3479 procedure linkage table. */
3480
3481 if (! ABI_64_P (output_bfd))
3482 {
3483 /* The Solaris native assembler will generate a WPLT30 reloc
3484 for a local symbol if you assemble a call from one
3485 section to another when using -K pic. We treat it as
3486 WDISP30. */
3487 if (h == NULL)
3488 break;
3489 }
3490 /* PR 7027: We need similar behaviour for 64-bit binaries. */
3491 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3492 break;
3493 else
3494 {
3495 BFD_ASSERT (h != NULL);
3496 }
3497
3498 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3499 {
3500 /* We didn't make a PLT entry for this symbol. This
3501 happens when statically linking PIC code, or when
3502 using -Bsymbolic. */
3503 break;
3504 }
3505
3506 relocation = (htab->elf.splt->output_section->vma
3507 + htab->elf.splt->output_offset
3508 + h->plt.offset);
3509 unresolved_reloc = FALSE;
3510 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3511 {
3512 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3513 is_plt = TRUE;
3514 goto r_sparc_plt32;
3515 }
3516 break;
3517
3518 case R_SPARC_PC10:
3519 case R_SPARC_PC22:
3520 case R_SPARC_PC_HH22:
3521 case R_SPARC_PC_HM10:
3522 case R_SPARC_PC_LM22:
3523 if (h != NULL
3524 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3525 break;
3526 /* Fall through. */
3527 case R_SPARC_DISP8:
3528 case R_SPARC_DISP16:
3529 case R_SPARC_DISP32:
3530 case R_SPARC_DISP64:
3531 case R_SPARC_WDISP30:
3532 case R_SPARC_WDISP22:
3533 case R_SPARC_WDISP19:
3534 case R_SPARC_WDISP16:
3535 case R_SPARC_WDISP10:
3536 case R_SPARC_8:
3537 case R_SPARC_16:
3538 case R_SPARC_32:
3539 case R_SPARC_HI22:
3540 case R_SPARC_22:
3541 case R_SPARC_13:
3542 case R_SPARC_LO10:
3543 case R_SPARC_UA16:
3544 case R_SPARC_UA32:
3545 case R_SPARC_10:
3546 case R_SPARC_11:
3547 case R_SPARC_64:
3548 case R_SPARC_OLO10:
3549 case R_SPARC_HH22:
3550 case R_SPARC_HM10:
3551 case R_SPARC_LM22:
3552 case R_SPARC_7:
3553 case R_SPARC_5:
3554 case R_SPARC_6:
3555 case R_SPARC_HIX22:
3556 case R_SPARC_LOX10:
3557 case R_SPARC_H44:
3558 case R_SPARC_M44:
3559 case R_SPARC_L44:
3560 case R_SPARC_H34:
3561 case R_SPARC_UA64:
3562 r_sparc_plt32:
3563 if ((input_section->flags & SEC_ALLOC) == 0
3564 || is_vxworks_tls)
3565 break;
3566
3567 /* Copy dynamic function pointer relocations. Don't generate
3568 dynamic relocations against resolved undefined weak symbols
3569 in PIE. */
3570 if ((bfd_link_pic (info)
3571 && (h == NULL
3572 || ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3573 && !resolved_to_zero)
3574 || h->root.type != bfd_link_hash_undefweak))
3575 && (! howto->pc_relative
3576 || !SYMBOL_CALLS_LOCAL (info, h)))
3577 || (!bfd_link_pic (info)
3578 && h != NULL
3579 && h->dynindx != -1
3580 && !h->non_got_ref
3581 && ((h->def_dynamic
3582 && !h->def_regular)
3583 || (h->root.type == bfd_link_hash_undefweak
3584 && !resolved_to_zero)
3585 || h->root.type == bfd_link_hash_undefined)))
3586 {
3587 Elf_Internal_Rela outrel;
3588 bfd_boolean skip, relocate = FALSE;
3589
3590 /* When generating a shared object, these relocations
3591 are copied into the output file to be resolved at run
3592 time. */
3593
3594 BFD_ASSERT (sreloc != NULL);
3595
3596 skip = FALSE;
3597
3598 outrel.r_offset =
3599 _bfd_elf_section_offset (output_bfd, info, input_section,
3600 rel->r_offset);
3601 if (outrel.r_offset == (bfd_vma) -1)
3602 skip = TRUE;
3603 else if (outrel.r_offset == (bfd_vma) -2)
3604 skip = TRUE, relocate = TRUE;
3605 outrel.r_offset += (input_section->output_section->vma
3606 + input_section->output_offset);
3607
3608 /* Optimize unaligned reloc usage now that we know where
3609 it finally resides. */
3610 switch (r_type)
3611 {
3612 case R_SPARC_16:
3613 if (outrel.r_offset & 1)
3614 r_type = R_SPARC_UA16;
3615 break;
3616 case R_SPARC_UA16:
3617 if (!(outrel.r_offset & 1))
3618 r_type = R_SPARC_16;
3619 break;
3620 case R_SPARC_32:
3621 if (outrel.r_offset & 3)
3622 r_type = R_SPARC_UA32;
3623 break;
3624 case R_SPARC_UA32:
3625 if (!(outrel.r_offset & 3))
3626 r_type = R_SPARC_32;
3627 break;
3628 case R_SPARC_64:
3629 if (outrel.r_offset & 7)
3630 r_type = R_SPARC_UA64;
3631 break;
3632 case R_SPARC_UA64:
3633 if (!(outrel.r_offset & 7))
3634 r_type = R_SPARC_64;
3635 break;
3636 case R_SPARC_DISP8:
3637 case R_SPARC_DISP16:
3638 case R_SPARC_DISP32:
3639 case R_SPARC_DISP64:
3640 /* If the symbol is not dynamic, we should not keep
3641 a dynamic relocation. But an .rela.* slot has been
3642 allocated for it, output R_SPARC_NONE.
3643 FIXME: Add code tracking needed dynamic relocs as
3644 e.g. i386 has. */
3645 if (h->dynindx == -1)
3646 skip = TRUE, relocate = TRUE;
3647 break;
3648 }
3649
3650 if (skip)
3651 memset (&outrel, 0, sizeof outrel);
3652 /* h->dynindx may be -1 if the symbol was marked to
3653 become local. */
3654 else if (h != NULL
3655 && h->dynindx != -1
3656 && (_bfd_sparc_elf_howto_table[r_type].pc_relative
3657 || !bfd_link_pic (info)
3658 || !SYMBOLIC_BIND (info, h)
3659 || !h->def_regular))
3660 {
3661 BFD_ASSERT (h->dynindx != -1);
3662 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3663 outrel.r_addend = rel->r_addend;
3664 }
3665 else
3666 {
3667 if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3668 || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
3669 {
3670 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3671 0, R_SPARC_RELATIVE);
3672 outrel.r_addend = relocation + rel->r_addend;
3673 }
3674 else
3675 {
3676 long indx;
3677
3678 outrel.r_addend = relocation + rel->r_addend;
3679
3680 if (is_plt)
3681 sec = htab->elf.splt;
3682
3683 if (bfd_is_abs_section (sec))
3684 indx = 0;
3685 else if (sec == NULL || sec->owner == NULL)
3686 {
3687 bfd_set_error (bfd_error_bad_value);
3688 return FALSE;
3689 }
3690 else
3691 {
3692 asection *osec;
3693
3694 /* We are turning this relocation into one
3695 against a section symbol. It would be
3696 proper to subtract the symbol's value,
3697 osec->vma, from the emitted reloc addend,
3698 but ld.so expects buggy relocs. */
3699 osec = sec->output_section;
3700 indx = elf_section_data (osec)->dynindx;
3701
3702 if (indx == 0)
3703 {
3704 osec = htab->elf.text_index_section;
3705 indx = elf_section_data (osec)->dynindx;
3706 }
3707
3708 /* FIXME: we really should be able to link non-pic
3709 shared libraries. */
3710 if (indx == 0)
3711 {
3712 BFD_FAIL ();
3713 _bfd_error_handler
3714 (_("%B: probably compiled without -fPIC?"),
3715 input_bfd);
3716 bfd_set_error (bfd_error_bad_value);
3717 return FALSE;
3718 }
3719 }
3720
3721 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3722 r_type);
3723 }
3724 }
3725
3726 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3727
3728 /* This reloc will be computed at runtime, so there's no
3729 need to do anything now. */
3730 if (! relocate)
3731 continue;
3732 }
3733 break;
3734
3735 case R_SPARC_TLS_GD_HI22:
3736 if (! ABI_64_P (input_bfd)
3737 && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
3738 {
3739 /* R_SPARC_REV32 used the same reloc number as
3740 R_SPARC_TLS_GD_HI22. */
3741 r_type = R_SPARC_REV32;
3742 break;
3743 }
3744 /* Fall through */
3745
3746 case R_SPARC_TLS_GD_LO10:
3747 case R_SPARC_TLS_IE_HI22:
3748 case R_SPARC_TLS_IE_LO10:
3749 r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
3750 tls_type = GOT_UNKNOWN;
3751 if (h == NULL && local_got_offsets)
3752 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3753 else if (h != NULL)
3754 {
3755 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3756 if (!bfd_link_pic (info)
3757 && h->dynindx == -1
3758 && tls_type == GOT_TLS_IE)
3759 switch (SPARC_ELF_R_TYPE (rel->r_info))
3760 {
3761 case R_SPARC_TLS_GD_HI22:
3762 case R_SPARC_TLS_IE_HI22:
3763 r_type = R_SPARC_TLS_LE_HIX22;
3764 break;
3765 default:
3766 r_type = R_SPARC_TLS_LE_LOX10;
3767 break;
3768 }
3769 }
3770 if (tls_type == GOT_TLS_IE)
3771 switch (r_type)
3772 {
3773 case R_SPARC_TLS_GD_HI22:
3774 r_type = R_SPARC_TLS_IE_HI22;
3775 break;
3776 case R_SPARC_TLS_GD_LO10:
3777 r_type = R_SPARC_TLS_IE_LO10;
3778 break;
3779 }
3780
3781 if (r_type == R_SPARC_TLS_LE_HIX22)
3782 {
3783 relocation = tpoff (info, relocation);
3784 break;
3785 }
3786 if (r_type == R_SPARC_TLS_LE_LOX10)
3787 {
3788 /* Change add into xor. */
3789 relocation = tpoff (info, relocation);
3790 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3791 contents + rel->r_offset)
3792 | 0x80182000), contents + rel->r_offset);
3793 break;
3794 }
3795
3796 if (h != NULL)
3797 {
3798 off = h->got.offset;
3799 h->got.offset |= 1;
3800 }
3801 else
3802 {
3803 BFD_ASSERT (local_got_offsets != NULL);
3804 off = local_got_offsets[r_symndx];
3805 local_got_offsets[r_symndx] |= 1;
3806 }
3807
3808 r_sparc_tlsldm:
3809 if (htab->elf.sgot == NULL)
3810 abort ();
3811
3812 if ((off & 1) != 0)
3813 off &= ~1;
3814 else
3815 {
3816 Elf_Internal_Rela outrel;
3817 int dr_type, indx;
3818
3819 if (htab->elf.srelgot == NULL)
3820 abort ();
3821
3822 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3823 htab->elf.sgot->contents + off);
3824 outrel.r_offset = (htab->elf.sgot->output_section->vma
3825 + htab->elf.sgot->output_offset + off);
3826 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3827 if (r_type == R_SPARC_TLS_IE_HI22
3828 || r_type == R_SPARC_TLS_IE_LO10)
3829 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3830 else
3831 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3832 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3833 outrel.r_addend = relocation - dtpoff_base (info);
3834 else
3835 outrel.r_addend = 0;
3836 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
3837 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3838
3839 if (r_type == R_SPARC_TLS_GD_HI22
3840 || r_type == R_SPARC_TLS_GD_LO10)
3841 {
3842 if (indx == 0)
3843 {
3844 BFD_ASSERT (! unresolved_reloc);
3845 SPARC_ELF_PUT_WORD (htab, output_bfd,
3846 relocation - dtpoff_base (info),
3847 (htab->elf.sgot->contents + off
3848 + SPARC_ELF_WORD_BYTES (htab)));
3849 }
3850 else
3851 {
3852 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3853 (htab->elf.sgot->contents + off
3854 + SPARC_ELF_WORD_BYTES (htab)));
3855 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3856 SPARC_ELF_DTPOFF_RELOC (htab));
3857 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
3858 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
3859 &outrel);
3860 }
3861 }
3862 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3863 {
3864 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3865 (htab->elf.sgot->contents + off
3866 + SPARC_ELF_WORD_BYTES (htab)));
3867 }
3868 }
3869
3870 if (off >= (bfd_vma) -2)
3871 abort ();
3872
3873 relocation = htab->elf.sgot->output_offset + off - got_base;
3874 unresolved_reloc = FALSE;
3875 howto = _bfd_sparc_elf_howto_table + r_type;
3876 break;
3877
3878 case R_SPARC_TLS_LDM_HI22:
3879 case R_SPARC_TLS_LDM_LO10:
3880 if (! bfd_link_pic (info))
3881 {
3882 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3883 continue;
3884 }
3885 off = htab->tls_ldm_got.offset;
3886 htab->tls_ldm_got.offset |= 1;
3887 goto r_sparc_tlsldm;
3888
3889 case R_SPARC_TLS_LDO_HIX22:
3890 case R_SPARC_TLS_LDO_LOX10:
3891 if (bfd_link_pic (info))
3892 {
3893 relocation -= dtpoff_base (info);
3894 break;
3895 }
3896
3897 r_type = (r_type == R_SPARC_TLS_LDO_HIX22
3898 ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
3899 /* Fall through. */
3900
3901 case R_SPARC_TLS_LE_HIX22:
3902 case R_SPARC_TLS_LE_LOX10:
3903 if (bfd_link_pic (info))
3904 {
3905 Elf_Internal_Rela outrel;
3906 bfd_boolean skip;
3907
3908 BFD_ASSERT (sreloc != NULL);
3909 skip = FALSE;
3910 outrel.r_offset =
3911 _bfd_elf_section_offset (output_bfd, info, input_section,
3912 rel->r_offset);
3913 if (outrel.r_offset == (bfd_vma) -1)
3914 skip = TRUE;
3915 else if (outrel.r_offset == (bfd_vma) -2)
3916 skip = TRUE;
3917 outrel.r_offset += (input_section->output_section->vma
3918 + input_section->output_offset);
3919 if (skip)
3920 memset (&outrel, 0, sizeof outrel);
3921 else
3922 {
3923 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3924 outrel.r_addend = relocation - dtpoff_base (info)
3925 + rel->r_addend;
3926 }
3927
3928 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3929 continue;
3930 }
3931 relocation = tpoff (info, relocation);
3932 break;
3933
3934 case R_SPARC_TLS_LDM_CALL:
3935 if (! bfd_link_pic (info))
3936 {
3937 /* mov %g0, %o0 */
3938 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3939 continue;
3940 }
3941 /* Fall through */
3942
3943 case R_SPARC_TLS_GD_CALL:
3944 tls_type = GOT_UNKNOWN;
3945 if (h == NULL && local_got_offsets)
3946 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3947 else if (h != NULL)
3948 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3949 if (! bfd_link_pic (info)
3950 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3951 {
3952 Elf_Internal_Rela *rel2;
3953 bfd_vma insn;
3954
3955 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
3956 {
3957 /* GD -> LE */
3958 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3959 continue;
3960 }
3961
3962 /* GD -> IE */
3963 if (rel + 1 < relend
3964 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3965 && rel[1].r_offset == rel->r_offset + 4
3966 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3967 && (((insn = bfd_get_32 (input_bfd,
3968 contents + rel[1].r_offset))
3969 >> 25) & 0x1f) == 8)
3970 {
3971 /* We have
3972 call __tls_get_addr, %tgd_call(foo)
3973 add %reg1, %reg2, %o0, %tgd_add(foo)
3974 and change it into IE:
3975 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3976 add %g7, %o0, %o0, %tie_add(foo).
3977 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3978 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3979 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3980 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3981 contents + rel->r_offset);
3982 bfd_put_32 (output_bfd, 0x9001c008,
3983 contents + rel->r_offset + 4);
3984 rel++;
3985 continue;
3986 }
3987
3988 /* We cannot just overwrite the delay slot instruction,
3989 as it might be what puts the %o0 argument to
3990 __tls_get_addr into place. So we have to transpose
3991 the delay slot with the add we patch in. */
3992 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3993 bfd_put_32 (output_bfd, insn,
3994 contents + rel->r_offset);
3995 bfd_put_32 (output_bfd, 0x9001c008,
3996 contents + rel->r_offset + 4);
3997
3998 rel2 = rel;
3999 while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
4000 rel->r_offset + 4))
4001 != NULL)
4002 {
4003 /* If the instruction we moved has a relocation attached to
4004 it, adjust the offset so that it will apply to the correct
4005 instruction. */
4006 rel2->r_offset -= 4;
4007 }
4008 continue;
4009 }
4010
4011 h = (struct elf_link_hash_entry *)
4012 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
4013 FALSE, TRUE);
4014 BFD_ASSERT (h != NULL);
4015 r_type = R_SPARC_WPLT30;
4016 howto = _bfd_sparc_elf_howto_table + r_type;
4017 goto r_sparc_wplt30;
4018
4019 case R_SPARC_TLS_GD_ADD:
4020 tls_type = GOT_UNKNOWN;
4021 if (h == NULL && local_got_offsets)
4022 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
4023 else if (h != NULL)
4024 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
4025 if (! bfd_link_pic (info) || tls_type == GOT_TLS_IE)
4026 {
4027 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
4028 changed into IE:
4029 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
4030 or LE:
4031 add %g7, %reg2, %reg3. */
4032 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
4033 if ((h != NULL && h->dynindx != -1) || bfd_link_pic (info))
4034 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
4035 else
4036 relocation = (insn & ~0x7c000) | 0x1c000;
4037 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
4038 }
4039 continue;
4040
4041 case R_SPARC_TLS_LDM_ADD:
4042 if (! bfd_link_pic (info))
4043 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
4044 continue;
4045
4046 case R_SPARC_TLS_LDO_ADD:
4047 if (! bfd_link_pic (info))
4048 {
4049 /* Change rs1 into %g7. */
4050 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
4051 insn = (insn & ~0x7c000) | 0x1c000;
4052 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
4053 }
4054 continue;
4055
4056 case R_SPARC_TLS_IE_LD:
4057 case R_SPARC_TLS_IE_LDX:
4058 if (! bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
4059 {
4060 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
4061 int rs2 = insn & 0x1f;
4062 int rd = (insn >> 25) & 0x1f;
4063
4064 if (rs2 == rd)
4065 relocation = SPARC_NOP;
4066 else
4067 relocation = 0x80100000 | (insn & 0x3e00001f);
4068 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
4069 }
4070 continue;
4071
4072 case R_SPARC_TLS_IE_ADD:
4073 /* Totally useless relocation. */
4074 continue;
4075
4076 case R_SPARC_TLS_DTPOFF32:
4077 case R_SPARC_TLS_DTPOFF64:
4078 relocation -= dtpoff_base (info);
4079 break;
4080
4081 default:
4082 break;
4083 }
4084
4085 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
4086 because such sections are not SEC_ALLOC and thus ld.so will
4087 not process them. */
4088 if (unresolved_reloc
4089 && !((input_section->flags & SEC_DEBUGGING) != 0
4090 && h->def_dynamic)
4091 && _bfd_elf_section_offset (output_bfd, info, input_section,
4092 rel->r_offset) != (bfd_vma) -1)
4093 _bfd_error_handler
4094 /* xgettext:c-format */
4095 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
4096 input_bfd,
4097 input_section,
4098 rel->r_offset,
4099 howto->name,
4100 h->root.root.string);
4101
4102 r = bfd_reloc_continue;
4103 if (r_type == R_SPARC_OLO10)
4104 {
4105 bfd_vma x;
4106
4107 if (! ABI_64_P (output_bfd))
4108 abort ();
4109
4110 relocation += rel->r_addend;
4111 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
4112
4113 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4114 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
4115 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4116
4117 r = bfd_check_overflow (howto->complain_on_overflow,
4118 howto->bitsize, howto->rightshift,
4119 bfd_arch_bits_per_address (input_bfd),
4120 relocation);
4121 }
4122 else if (r_type == R_SPARC_WDISP16)
4123 {
4124 bfd_vma x;
4125
4126 relocation += rel->r_addend;
4127 relocation -= (input_section->output_section->vma
4128 + input_section->output_offset);
4129 relocation -= rel->r_offset;
4130
4131 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4132 x |= ((((relocation >> 2) & 0xc000) << 6)
4133 | ((relocation >> 2) & 0x3fff));
4134 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4135
4136 r = bfd_check_overflow (howto->complain_on_overflow,
4137 howto->bitsize, howto->rightshift,
4138 bfd_arch_bits_per_address (input_bfd),
4139 relocation);
4140 }
4141 else if (r_type == R_SPARC_WDISP10)
4142 {
4143 bfd_vma x;
4144
4145 relocation += rel->r_addend;
4146 relocation -= (input_section->output_section->vma
4147 + input_section->output_offset);
4148 relocation -= rel->r_offset;
4149
4150 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4151 x |= ((((relocation >> 2) & 0x300) << 11)
4152 | (((relocation >> 2) & 0xff) << 5));
4153 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4154
4155 r = bfd_check_overflow (howto->complain_on_overflow,
4156 howto->bitsize, howto->rightshift,
4157 bfd_arch_bits_per_address (input_bfd),
4158 relocation);
4159 }
4160 else if (r_type == R_SPARC_REV32)
4161 {
4162 bfd_vma x;
4163
4164 relocation = relocation + rel->r_addend;
4165
4166 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4167 x = x + relocation;
4168 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
4169 r = bfd_reloc_ok;
4170 }
4171 else if (r_type == R_SPARC_TLS_LDO_HIX22
4172 || r_type == R_SPARC_TLS_LE_HIX22)
4173 {
4174 bfd_vma x;
4175
4176 relocation += rel->r_addend;
4177 if (r_type == R_SPARC_TLS_LE_HIX22)
4178 relocation ^= MINUS_ONE;
4179
4180 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4181 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4182 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4183 r = bfd_reloc_ok;
4184 }
4185 else if (r_type == R_SPARC_TLS_LDO_LOX10
4186 || r_type == R_SPARC_TLS_LE_LOX10)
4187 {
4188 bfd_vma x;
4189
4190 relocation += rel->r_addend;
4191 relocation &= 0x3ff;
4192 if (r_type == R_SPARC_TLS_LE_LOX10)
4193 relocation |= 0x1c00;
4194
4195 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4196 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4197 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4198
4199 r = bfd_reloc_ok;
4200 }
4201 else if (r_type == R_SPARC_HIX22
4202 || r_type == R_SPARC_GOTDATA_HIX22
4203 || r_type == R_SPARC_GOTDATA_OP_HIX22)
4204 {
4205 bfd_vma x;
4206
4207 relocation += rel->r_addend;
4208 if (r_type == R_SPARC_HIX22
4209 || (bfd_signed_vma) relocation < 0)
4210 relocation = relocation ^ MINUS_ONE;
4211
4212 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4213 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4214 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4215
4216 r = bfd_check_overflow (howto->complain_on_overflow,
4217 howto->bitsize, howto->rightshift,
4218 bfd_arch_bits_per_address (input_bfd),
4219 relocation);
4220 }
4221 else if (r_type == R_SPARC_LOX10
4222 || r_type == R_SPARC_GOTDATA_LOX10
4223 || r_type == R_SPARC_GOTDATA_OP_LOX10)
4224 {
4225 bfd_vma x;
4226
4227 relocation += rel->r_addend;
4228 if (r_type == R_SPARC_LOX10
4229 || (bfd_signed_vma) relocation < 0)
4230 relocation = (relocation & 0x3ff) | 0x1c00;
4231 else
4232 relocation = (relocation & 0x3ff);
4233
4234 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4235 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4236 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4237
4238 r = bfd_reloc_ok;
4239 }
4240 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
4241 && sec_do_relax (input_section)
4242 && rel->r_offset + 4 < input_section->size)
4243 {
4244 #define G0 0
4245 #define O7 15
4246 #define XCC (2 << 20)
4247 #define COND(x) (((x)&0xf)<<25)
4248 #define CONDA COND(0x8)
4249 #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
4250 #define INSN_BA (F2(0,2) | CONDA)
4251 #define INSN_OR F3(2, 0x2, 0)
4252 #define INSN_NOP F2(0,4)
4253
4254 bfd_vma x, y;
4255
4256 /* If the instruction is a call with either:
4257 restore
4258 arithmetic instruction with rd == %o7
4259 where rs1 != %o7 and rs2 if it is register != %o7
4260 then we can optimize if the call destination is near
4261 by changing the call into a branch always. */
4262 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4263 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
4264 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
4265 {
4266 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
4267 || ((y & OP3(0x28)) == 0 /* arithmetic */
4268 && (y & RD(~0)) == RD(O7)))
4269 && (y & RS1(~0)) != RS1(O7)
4270 && ((y & F3I(~0))
4271 || (y & RS2(~0)) != RS2(O7)))
4272 {
4273 bfd_vma reloc;
4274
4275 reloc = relocation + rel->r_addend - rel->r_offset;
4276 reloc -= (input_section->output_section->vma
4277 + input_section->output_offset);
4278
4279 /* Ensure the branch fits into simm22. */
4280 if ((reloc & 3) == 0
4281 && ((reloc & ~(bfd_vma)0x7fffff) == 0
4282 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4283 {
4284 reloc >>= 2;
4285
4286 /* Check whether it fits into simm19. */
4287 if (((reloc & 0x3c0000) == 0
4288 || (reloc & 0x3c0000) == 0x3c0000)
4289 && (ABI_64_P (output_bfd)
4290 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4291 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4292 else
4293 x = INSN_BA | (reloc & 0x3fffff); /* ba */
4294 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4295 r = bfd_reloc_ok;
4296 if (rel->r_offset >= 4
4297 && (y & (0xffffffff ^ RS1(~0)))
4298 == (INSN_OR | RD(O7) | RS2(G0)))
4299 {
4300 bfd_vma z;
4301 unsigned int reg;
4302
4303 z = bfd_get_32 (input_bfd,
4304 contents + rel->r_offset - 4);
4305 if ((z & (0xffffffff ^ RD(~0)))
4306 != (INSN_OR | RS1(O7) | RS2(G0)))
4307 continue;
4308
4309 /* The sequence was
4310 or %o7, %g0, %rN
4311 call foo
4312 or %rN, %g0, %o7
4313
4314 If call foo was replaced with ba, replace
4315 or %rN, %g0, %o7 with nop. */
4316
4317 reg = (y & RS1(~0)) >> 14;
4318 if (reg != ((z & RD(~0)) >> 25)
4319 || reg == G0 || reg == O7)
4320 continue;
4321
4322 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4323 contents + rel->r_offset + 4);
4324 }
4325
4326 }
4327 }
4328 }
4329 }
4330
4331 if (r == bfd_reloc_continue)
4332 {
4333 do_relocation:
4334 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4335 contents, rel->r_offset,
4336 relocation, rel->r_addend);
4337 }
4338 if (r != bfd_reloc_ok)
4339 {
4340 switch (r)
4341 {
4342 default:
4343 case bfd_reloc_outofrange:
4344 abort ();
4345 case bfd_reloc_overflow:
4346 {
4347 const char *name;
4348
4349 /* The Solaris native linker silently disregards overflows.
4350 We don't, but this breaks stabs debugging info, whose
4351 relocations are only 32-bits wide. Ignore overflows in
4352 this case and also for discarded entries. */
4353 if ((r_type == R_SPARC_32
4354 || r_type == R_SPARC_UA32
4355 || r_type == R_SPARC_DISP32)
4356 && (((input_section->flags & SEC_DEBUGGING) != 0
4357 && strcmp (bfd_section_name (input_bfd,
4358 input_section),
4359 ".stab") == 0)
4360 || _bfd_elf_section_offset (output_bfd, info,
4361 input_section,
4362 rel->r_offset)
4363 == (bfd_vma)-1))
4364 break;
4365
4366 if (h != NULL)
4367 {
4368 /* Assume this is a call protected by other code that
4369 detect the symbol is undefined. If this is the case,
4370 we can safely ignore the overflow. If not, the
4371 program is hosed anyway, and a little warning isn't
4372 going to help. */
4373 if (h->root.type == bfd_link_hash_undefweak
4374 && howto->pc_relative)
4375 break;
4376
4377 name = NULL;
4378 }
4379 else
4380 {
4381 name = bfd_elf_string_from_elf_section (input_bfd,
4382 symtab_hdr->sh_link,
4383 sym->st_name);
4384 if (name == NULL)
4385 return FALSE;
4386 if (*name == '\0')
4387 name = bfd_section_name (input_bfd, sec);
4388 }
4389 (*info->callbacks->reloc_overflow)
4390 (info, (h ? &h->root : NULL), name, howto->name,
4391 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4392 }
4393 break;
4394 }
4395 }
4396 }
4397
4398 return TRUE;
4399 }
4400
4401 /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4402 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4403 is the offset of the associated .got.plt entry from
4404 _GLOBAL_OFFSET_TABLE_. */
4405
4406 static void
4407 sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4408 bfd_vma plt_offset, bfd_vma plt_index,
4409 bfd_vma got_offset)
4410 {
4411 bfd_vma got_base;
4412 const bfd_vma *plt_entry;
4413 struct _bfd_sparc_elf_link_hash_table *htab;
4414 bfd_byte *loc;
4415 Elf_Internal_Rela rela;
4416
4417 htab = _bfd_sparc_elf_hash_table (info);
4418 BFD_ASSERT (htab != NULL);
4419
4420 if (bfd_link_pic (info))
4421 {
4422 plt_entry = sparc_vxworks_shared_plt_entry;
4423 got_base = 0;
4424 }
4425 else
4426 {
4427 plt_entry = sparc_vxworks_exec_plt_entry;
4428 got_base = (htab->elf.hgot->root.u.def.value
4429 + htab->elf.hgot->root.u.def.section->output_offset
4430 + htab->elf.hgot->root.u.def.section->output_section->vma);
4431 }
4432
4433 /* Fill in the entry in the procedure linkage table. */
4434 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
4435 htab->elf.splt->contents + plt_offset);
4436 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
4437 htab->elf.splt->contents + plt_offset + 4);
4438 bfd_put_32 (output_bfd, plt_entry[2],
4439 htab->elf.splt->contents + plt_offset + 8);
4440 bfd_put_32 (output_bfd, plt_entry[3],
4441 htab->elf.splt->contents + plt_offset + 12);
4442 bfd_put_32 (output_bfd, plt_entry[4],
4443 htab->elf.splt->contents + plt_offset + 16);
4444 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
4445 htab->elf.splt->contents + plt_offset + 20);
4446 /* PC-relative displacement for a branch to the start of
4447 the PLT section. */
4448 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4449 & 0x003fffff),
4450 htab->elf.splt->contents + plt_offset + 24);
4451 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
4452 htab->elf.splt->contents + plt_offset + 28);
4453
4454 /* Fill in the .got.plt entry, pointing initially at the
4455 second half of the PLT entry. */
4456 BFD_ASSERT (htab->elf.sgotplt != NULL);
4457 bfd_put_32 (output_bfd,
4458 htab->elf.splt->output_section->vma
4459 + htab->elf.splt->output_offset
4460 + plt_offset + 20,
4461 htab->elf.sgotplt->contents + got_offset);
4462
4463 /* Add relocations to .rela.plt.unloaded. */
4464 if (!bfd_link_pic (info))
4465 {
4466 loc = (htab->srelplt2->contents
4467 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4468
4469 /* Relocate the initial sethi. */
4470 rela.r_offset = (htab->elf.splt->output_section->vma
4471 + htab->elf.splt->output_offset
4472 + plt_offset);
4473 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4474 rela.r_addend = got_offset;
4475 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4476 loc += sizeof (Elf32_External_Rela);
4477
4478 /* Likewise the following or. */
4479 rela.r_offset += 4;
4480 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4481 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4482 loc += sizeof (Elf32_External_Rela);
4483
4484 /* Relocate the .got.plt entry. */
4485 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4486 + htab->elf.sgotplt->output_offset
4487 + got_offset);
4488 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4489 rela.r_addend = plt_offset + 20;
4490 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4491 }
4492 }
4493
4494 /* Finish up dynamic symbol handling. We set the contents of various
4495 dynamic sections here. */
4496
4497 bfd_boolean
4498 _bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4499 struct bfd_link_info *info,
4500 struct elf_link_hash_entry *h,
4501 Elf_Internal_Sym *sym)
4502 {
4503 struct _bfd_sparc_elf_link_hash_table *htab;
4504 const struct elf_backend_data *bed;
4505 struct _bfd_sparc_elf_link_hash_entry *eh;
4506 bfd_boolean local_undefweak;
4507
4508 htab = _bfd_sparc_elf_hash_table (info);
4509 BFD_ASSERT (htab != NULL);
4510 bed = get_elf_backend_data (output_bfd);
4511
4512 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4513
4514 /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4515 resolved undefined weak symbols in executable so that their
4516 references have value 0 at run-time. */
4517 local_undefweak = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
4518
4519 if (h->plt.offset != (bfd_vma) -1)
4520 {
4521 asection *splt;
4522 asection *srela;
4523 Elf_Internal_Rela rela;
4524 bfd_byte *loc;
4525 bfd_vma r_offset, got_offset;
4526 int rela_index;
4527
4528 /* When building a static executable, use .iplt and
4529 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4530 if (htab->elf.splt != NULL)
4531 {
4532 splt = htab->elf.splt;
4533 srela = htab->elf.srelplt;
4534 }
4535 else
4536 {
4537 splt = htab->elf.iplt;
4538 srela = htab->elf.irelplt;
4539 }
4540
4541 if (splt == NULL || srela == NULL)
4542 abort ();
4543
4544 /* Fill in the entry in the .rela.plt section. */
4545 if (htab->is_vxworks)
4546 {
4547 /* Work out the index of this PLT entry. */
4548 rela_index = ((h->plt.offset - htab->plt_header_size)
4549 / htab->plt_entry_size);
4550
4551 /* Calculate the offset of the associated .got.plt entry.
4552 The first three entries are reserved. */
4553 got_offset = (rela_index + 3) * 4;
4554
4555 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4556 rela_index, got_offset);
4557
4558
4559 /* On VxWorks, the relocation points to the .got.plt entry,
4560 not the .plt entry. */
4561 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4562 + htab->elf.sgotplt->output_offset
4563 + got_offset);
4564 rela.r_addend = 0;
4565 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4566 R_SPARC_JMP_SLOT);
4567 }
4568 else
4569 {
4570 bfd_boolean ifunc = FALSE;
4571
4572 /* Fill in the entry in the procedure linkage table. */
4573 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4574 h->plt.offset, splt->size,
4575 &r_offset);
4576
4577 if (h == NULL
4578 || h->dynindx == -1
4579 || ((bfd_link_executable (info)
4580 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4581 && h->def_regular
4582 && h->type == STT_GNU_IFUNC))
4583 {
4584 ifunc = TRUE;
4585 BFD_ASSERT (h == NULL
4586 || (h->type == STT_GNU_IFUNC
4587 && h->def_regular
4588 && (h->root.type == bfd_link_hash_defined
4589 || h->root.type == bfd_link_hash_defweak)));
4590 }
4591
4592 rela.r_offset = r_offset
4593 + (splt->output_section->vma + splt->output_offset);
4594 if (ABI_64_P (output_bfd)
4595 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
4596 {
4597 if (ifunc)
4598 {
4599 rela.r_addend = (h->root.u.def.section->output_section->vma
4600 + h->root.u.def.section->output_offset
4601 + h->root.u.def.value);
4602 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4603 R_SPARC_IRELATIVE);
4604 }
4605 else
4606 {
4607 rela.r_addend = (-(h->plt.offset + 4)
4608 - splt->output_section->vma
4609 - splt->output_offset);
4610 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4611 R_SPARC_JMP_SLOT);
4612 }
4613 }
4614 else
4615 {
4616 if (ifunc)
4617 {
4618 rela.r_addend = (h->root.u.def.section->output_section->vma
4619 + h->root.u.def.section->output_offset
4620 + h->root.u.def.value);
4621 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4622 R_SPARC_JMP_IREL);
4623 }
4624 else
4625 {
4626 rela.r_addend = 0;
4627 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4628 R_SPARC_JMP_SLOT);
4629 }
4630 }
4631 }
4632
4633 /* Adjust for the first 4 reserved elements in the .plt section
4634 when setting the offset in the .rela.plt section.
4635 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4636 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4637
4638 loc = srela->contents;
4639 loc += rela_index * bed->s->sizeof_rela;
4640 bed->s->swap_reloca_out (output_bfd, &rela, loc);
4641
4642 if (!local_undefweak
4643 && !h->def_regular)
4644 {
4645 /* Mark the symbol as undefined, rather than as defined in
4646 the .plt section. Leave the value alone. */
4647 sym->st_shndx = SHN_UNDEF;
4648 /* If the symbol is weak, we do need to clear the value.
4649 Otherwise, the PLT entry would provide a definition for
4650 the symbol even if the symbol wasn't defined anywhere,
4651 and so the symbol would never be NULL. */
4652 if (!h->ref_regular_nonweak)
4653 sym->st_value = 0;
4654 }
4655 }
4656
4657 /* Don't generate dynamic GOT relocation against undefined weak
4658 symbol in executable. */
4659 if (h->got.offset != (bfd_vma) -1
4660 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4661 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
4662 && !local_undefweak)
4663 {
4664 asection *sgot;
4665 asection *srela;
4666 Elf_Internal_Rela rela;
4667
4668 /* This symbol has an entry in the GOT. Set it up. */
4669
4670 sgot = htab->elf.sgot;
4671 srela = htab->elf.srelgot;
4672 BFD_ASSERT (sgot != NULL && srela != NULL);
4673
4674 rela.r_offset = (sgot->output_section->vma
4675 + sgot->output_offset
4676 + (h->got.offset &~ (bfd_vma) 1));
4677
4678 /* If this is a -Bsymbolic link, and the symbol is defined
4679 locally, we just want to emit a RELATIVE reloc. Likewise if
4680 the symbol was forced to be local because of a version file.
4681 The entry in the global offset table will already have been
4682 initialized in the relocate_section function. */
4683 if (! bfd_link_pic (info)
4684 && h->type == STT_GNU_IFUNC
4685 && h->def_regular)
4686 {
4687 asection *plt;
4688
4689 /* We load the GOT entry with the PLT entry. */
4690 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4691 SPARC_ELF_PUT_WORD (htab, output_bfd,
4692 (plt->output_section->vma
4693 + plt->output_offset + h->plt.offset),
4694 htab->elf.sgot->contents
4695 + (h->got.offset & ~(bfd_vma) 1));
4696 return TRUE;
4697 }
4698 else if (bfd_link_pic (info)
4699 && SYMBOL_REFERENCES_LOCAL (info, h))
4700 {
4701 asection *sec = h->root.u.def.section;
4702 if (h->type == STT_GNU_IFUNC)
4703 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4704 else
4705 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
4706 rela.r_addend = (h->root.u.def.value
4707 + sec->output_section->vma
4708 + sec->output_offset);
4709 }
4710 else
4711 {
4712 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4713 rela.r_addend = 0;
4714 }
4715
4716 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4717 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4718 sparc_elf_append_rela (output_bfd, srela, &rela);
4719 }
4720
4721 if (h->needs_copy)
4722 {
4723 asection *s;
4724 Elf_Internal_Rela rela;
4725
4726 /* This symbols needs a copy reloc. Set it up. */
4727 BFD_ASSERT (h->dynindx != -1);
4728
4729 rela.r_offset = (h->root.u.def.value
4730 + h->root.u.def.section->output_section->vma
4731 + h->root.u.def.section->output_offset);
4732 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4733 rela.r_addend = 0;
4734 if (h->root.u.def.section == htab->elf.sdynrelro)
4735 s = htab->elf.sreldynrelro;
4736 else
4737 s = htab->elf.srelbss;
4738 sparc_elf_append_rela (output_bfd, s, &rela);
4739 }
4740
4741 /* Mark some specially defined symbols as absolute. On VxWorks,
4742 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4743 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
4744 if (sym != NULL
4745 && (h == htab->elf.hdynamic
4746 || (!htab->is_vxworks
4747 && (h == htab->elf.hgot || h == htab->elf.hplt))))
4748 sym->st_shndx = SHN_ABS;
4749
4750 return TRUE;
4751 }
4752
4753 /* Finish up the dynamic sections. */
4754
4755 static bfd_boolean
4756 sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4757 bfd *dynobj, asection *sdyn,
4758 asection *splt ATTRIBUTE_UNUSED)
4759 {
4760 struct _bfd_sparc_elf_link_hash_table *htab;
4761 const struct elf_backend_data *bed;
4762 bfd_byte *dyncon, *dynconend;
4763 size_t dynsize;
4764 int stt_regidx = -1;
4765 bfd_boolean abi_64_p;
4766
4767 htab = _bfd_sparc_elf_hash_table (info);
4768 BFD_ASSERT (htab != NULL);
4769 bed = get_elf_backend_data (output_bfd);
4770 dynsize = bed->s->sizeof_dyn;
4771 dynconend = sdyn->contents + sdyn->size;
4772 abi_64_p = ABI_64_P (output_bfd);
4773 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4774 {
4775 Elf_Internal_Dyn dyn;
4776 bfd_boolean size;
4777
4778 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4779
4780 if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
4781 {
4782 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4783 not to the start of the PLT. */
4784 if (htab->elf.sgotplt)
4785 {
4786 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4787 + htab->elf.sgotplt->output_offset);
4788 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4789 }
4790 }
4791 else if (htab->is_vxworks
4792 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4793 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4794 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4795 {
4796 if (stt_regidx == -1)
4797 {
4798 stt_regidx =
4799 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4800 if (stt_regidx == -1)
4801 return FALSE;
4802 }
4803 dyn.d_un.d_val = stt_regidx++;
4804 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4805 }
4806 else
4807 {
4808 asection *s;
4809
4810 switch (dyn.d_tag)
4811 {
4812 case DT_PLTGOT:
4813 s = htab->elf.splt;
4814 size = FALSE;
4815 break;
4816 case DT_PLTRELSZ:
4817 s = htab->elf.srelplt;
4818 size = TRUE;
4819 break;
4820 case DT_JMPREL:
4821 s = htab->elf.srelplt;
4822 size = FALSE;
4823 break;
4824 default:
4825 continue;
4826 }
4827
4828 if (s == NULL)
4829 dyn.d_un.d_val = 0;
4830 else
4831 {
4832 if (!size)
4833 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4834 else
4835 dyn.d_un.d_val = s->size;
4836 }
4837 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4838 }
4839 }
4840 return TRUE;
4841 }
4842
4843 /* Install the first PLT entry in a VxWorks executable and make sure that
4844 .rela.plt.unloaded relocations have the correct symbol indexes. */
4845
4846 static void
4847 sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4848 {
4849 struct _bfd_sparc_elf_link_hash_table *htab;
4850 Elf_Internal_Rela rela;
4851 bfd_vma got_base;
4852 bfd_byte *loc;
4853
4854 htab = _bfd_sparc_elf_hash_table (info);
4855 BFD_ASSERT (htab != NULL);
4856
4857 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4858 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4859 + htab->elf.hgot->root.u.def.section->output_offset
4860 + htab->elf.hgot->root.u.def.value);
4861
4862 /* Install the initial PLT entry. */
4863 bfd_put_32 (output_bfd,
4864 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
4865 htab->elf.splt->contents);
4866 bfd_put_32 (output_bfd,
4867 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
4868 htab->elf.splt->contents + 4);
4869 bfd_put_32 (output_bfd,
4870 sparc_vxworks_exec_plt0_entry[2],
4871 htab->elf.splt->contents + 8);
4872 bfd_put_32 (output_bfd,
4873 sparc_vxworks_exec_plt0_entry[3],
4874 htab->elf.splt->contents + 12);
4875 bfd_put_32 (output_bfd,
4876 sparc_vxworks_exec_plt0_entry[4],
4877 htab->elf.splt->contents + 16);
4878
4879 loc = htab->srelplt2->contents;
4880
4881 /* Add an unloaded relocation for the initial entry's "sethi". */
4882 rela.r_offset = (htab->elf.splt->output_section->vma
4883 + htab->elf.splt->output_offset);
4884 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4885 rela.r_addend = 8;
4886 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4887 loc += sizeof (Elf32_External_Rela);
4888
4889 /* Likewise the following "or". */
4890 rela.r_offset += 4;
4891 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4892 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4893 loc += sizeof (Elf32_External_Rela);
4894
4895 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4896 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4897 in which symbols were output. */
4898 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4899 {
4900 Elf_Internal_Rela rel;
4901
4902 /* The entry's initial "sethi" (against _G_O_T_). */
4903 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4904 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4905 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4906 loc += sizeof (Elf32_External_Rela);
4907
4908 /* The following "or" (also against _G_O_T_). */
4909 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4910 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4911 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4912 loc += sizeof (Elf32_External_Rela);
4913
4914 /* The .got.plt entry (against _P_L_T_). */
4915 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4916 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4917 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4918 loc += sizeof (Elf32_External_Rela);
4919 }
4920 }
4921
4922 /* Install the first PLT entry in a VxWorks shared object. */
4923
4924 static void
4925 sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4926 {
4927 struct _bfd_sparc_elf_link_hash_table *htab;
4928 unsigned int i;
4929
4930 htab = _bfd_sparc_elf_hash_table (info);
4931 BFD_ASSERT (htab != NULL);
4932
4933 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4934 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
4935 htab->elf.splt->contents + i * 4);
4936 }
4937
4938 /* Finish up local dynamic symbol handling. We set the contents of
4939 various dynamic sections here. */
4940
4941 static bfd_boolean
4942 finish_local_dynamic_symbol (void **slot, void *inf)
4943 {
4944 struct elf_link_hash_entry *h
4945 = (struct elf_link_hash_entry *) *slot;
4946 struct bfd_link_info *info
4947 = (struct bfd_link_info *) inf;
4948
4949 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4950 h, NULL);
4951 }
4952
4953 /* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4954 here since undefined weak symbol may not be dynamic and may not be
4955 called for _bfd_sparc_elf_finish_dynamic_symbol. */
4956
4957 static bfd_boolean
4958 pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
4959 void *inf)
4960 {
4961 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4962 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4963
4964 if (h->root.type != bfd_link_hash_undefweak
4965 || h->dynindx != -1)
4966 return TRUE;
4967
4968 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4969 h, NULL);
4970 }
4971
4972 bfd_boolean
4973 _bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4974 {
4975 bfd *dynobj;
4976 asection *sdyn;
4977 struct _bfd_sparc_elf_link_hash_table *htab;
4978
4979 htab = _bfd_sparc_elf_hash_table (info);
4980 BFD_ASSERT (htab != NULL);
4981 dynobj = htab->elf.dynobj;
4982
4983 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4984
4985 if (elf_hash_table (info)->dynamic_sections_created)
4986 {
4987 asection *splt;
4988
4989 splt = htab->elf.splt;
4990 BFD_ASSERT (splt != NULL && sdyn != NULL);
4991
4992 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4993 return FALSE;
4994
4995 /* Initialize the contents of the .plt section. */
4996 if (splt->size > 0)
4997 {
4998 if (htab->is_vxworks)
4999 {
5000 if (bfd_link_pic (info))
5001 sparc_vxworks_finish_shared_plt (output_bfd, info);
5002 else
5003 sparc_vxworks_finish_exec_plt (output_bfd, info);
5004 }
5005 else
5006 {
5007 memset (splt->contents, 0, htab->plt_header_size);
5008 if (!ABI_64_P (output_bfd))
5009 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
5010 splt->contents + splt->size - 4);
5011 }
5012 }
5013
5014 if (elf_section_data (splt->output_section) != NULL)
5015 elf_section_data (splt->output_section)->this_hdr.sh_entsize
5016 = ((htab->is_vxworks || !ABI_64_P (output_bfd))
5017 ? 0 : htab->plt_entry_size);
5018 }
5019
5020 /* Set the first entry in the global offset table to the address of
5021 the dynamic section. */
5022 if (htab->elf.sgot && htab->elf.sgot->size > 0)
5023 {
5024 bfd_vma val = (sdyn ?
5025 sdyn->output_section->vma + sdyn->output_offset :
5026 0);
5027
5028 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
5029 }
5030
5031 if (htab->elf.sgot)
5032 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
5033 SPARC_ELF_WORD_BYTES (htab);
5034
5035 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
5036 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
5037
5038 /* Fill PLT entries for undefined weak symbols in PIE. */
5039 if (bfd_link_pie (info))
5040 bfd_hash_traverse (&info->hash->table,
5041 pie_finish_undefweak_symbol,
5042 info);
5043 return TRUE;
5044 }
5045
5046 \f
5047 /* Set the right machine number for a SPARC ELF file. */
5048
5049 bfd_boolean
5050 _bfd_sparc_elf_object_p (bfd *abfd)
5051 {
5052 obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
5053 obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
5054 obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
5055
5056 unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
5057 unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
5058 | ELF_SPARC_HWCAP_VIS3
5059 | ELF_SPARC_HWCAP_HPC);
5060 unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
5061 | ELF_SPARC_HWCAP_DES
5062 | ELF_SPARC_HWCAP_KASUMI
5063 | ELF_SPARC_HWCAP_CAMELLIA
5064 | ELF_SPARC_HWCAP_MD5
5065 | ELF_SPARC_HWCAP_SHA1
5066 | ELF_SPARC_HWCAP_SHA256
5067 | ELF_SPARC_HWCAP_SHA512
5068 | ELF_SPARC_HWCAP_MPMUL
5069 | ELF_SPARC_HWCAP_MONT
5070 | ELF_SPARC_HWCAP_CRC32C
5071 | ELF_SPARC_HWCAP_CBCOND
5072 | ELF_SPARC_HWCAP_PAUSE);
5073 unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
5074 | ELF_SPARC_HWCAP_IMA);
5075 unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
5076 | ELF_SPARC_HWCAP2_MWAIT
5077 | ELF_SPARC_HWCAP2_XMPMUL
5078 | ELF_SPARC_HWCAP2_XMONT);
5079 unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6
5080 | ELF_SPARC_HWCAP2_ONADDSUB
5081 | ELF_SPARC_HWCAP2_ONMUL
5082 | ELF_SPARC_HWCAP2_ONDIV
5083 | ELF_SPARC_HWCAP2_DICTUNP
5084 | ELF_SPARC_HWCAP2_FPCMPSHL
5085 | ELF_SPARC_HWCAP2_RLE
5086 | ELF_SPARC_HWCAP2_SHA3);
5087
5088 if (ABI_64_P (abfd))
5089 {
5090 unsigned long mach = bfd_mach_sparc_v9;
5091
5092 if (hwcaps2->i & m8_hwcaps2_mask)
5093 mach = bfd_mach_sparc_v9m8;
5094 else if (hwcaps2->i & v9m_hwcaps2_mask)
5095 mach = bfd_mach_sparc_v9m;
5096 else if (hwcaps->i & v9v_hwcaps_mask)
5097 mach = bfd_mach_sparc_v9v;
5098 else if (hwcaps->i & v9e_hwcaps_mask)
5099 mach = bfd_mach_sparc_v9e;
5100 else if (hwcaps->i & v9d_hwcaps_mask)
5101 mach = bfd_mach_sparc_v9d;
5102 else if (hwcaps->i & v9c_hwcaps_mask)
5103 mach = bfd_mach_sparc_v9c;
5104 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
5105 mach = bfd_mach_sparc_v9b;
5106 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
5107 mach = bfd_mach_sparc_v9a;
5108 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
5109 }
5110 else
5111 {
5112 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
5113 {
5114 if (hwcaps2->i & m8_hwcaps2_mask)
5115 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5116 bfd_mach_sparc_v8plusm8);
5117 else if (hwcaps2->i & v9m_hwcaps2_mask)
5118 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5119 bfd_mach_sparc_v8plusm);
5120 else if (hwcaps->i & v9v_hwcaps_mask)
5121 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5122 bfd_mach_sparc_v8plusv);
5123 else if (hwcaps->i & v9e_hwcaps_mask)
5124 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5125 bfd_mach_sparc_v8pluse);
5126 else if (hwcaps->i & v9d_hwcaps_mask)
5127 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5128 bfd_mach_sparc_v8plusd);
5129 else if (hwcaps->i & v9c_hwcaps_mask)
5130 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5131 bfd_mach_sparc_v8plusc);
5132 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
5133 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5134 bfd_mach_sparc_v8plusb);
5135 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
5136 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5137 bfd_mach_sparc_v8plusa);
5138 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
5139 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5140 bfd_mach_sparc_v8plus);
5141 else
5142 return FALSE;
5143 }
5144 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
5145 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5146 bfd_mach_sparc_sparclite_le);
5147 else
5148 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
5149 }
5150 }
5151
5152 /* Return address for Ith PLT stub in section PLT, for relocation REL
5153 or (bfd_vma) -1 if it should not be included. */
5154
5155 bfd_vma
5156 _bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
5157 {
5158 if (ABI_64_P (plt->owner))
5159 {
5160 bfd_vma j;
5161
5162 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
5163 if (i < PLT64_LARGE_THRESHOLD)
5164 return plt->vma + i * PLT64_ENTRY_SIZE;
5165
5166 j = (i - PLT64_LARGE_THRESHOLD) % 160;
5167 i -= j;
5168 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
5169 }
5170 else
5171 return rel->address;
5172 }
5173
5174 /* Merge backend specific data from an object file to the output
5175 object file when linking. */
5176
5177 bfd_boolean
5178 _bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
5179 {
5180 bfd *obfd = info->output_bfd;
5181 obj_attribute *in_attr, *in_attrs;
5182 obj_attribute *out_attr, *out_attrs;
5183
5184 if (!elf_known_obj_attributes_proc (obfd)[0].i)
5185 {
5186 /* This is the first object. Copy the attributes. */
5187 _bfd_elf_copy_obj_attributes (ibfd, obfd);
5188
5189 /* Use the Tag_null value to indicate the attributes have been
5190 initialized. */
5191 elf_known_obj_attributes_proc (obfd)[0].i = 1;
5192
5193 return TRUE;
5194 }
5195
5196 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
5197 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
5198
5199 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
5200 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
5201
5202 out_attr->i |= in_attr->i;
5203 out_attr->type = 1;
5204
5205 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
5206 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
5207
5208 out_attr->i |= in_attr->i;
5209 out_attr->type = 1;
5210
5211 /* Merge Tag_compatibility attributes and any common GNU ones. */
5212 _bfd_elf_merge_object_attributes (ibfd, info);
5213
5214 return TRUE;
5215 }
GDB Binutils - Deliverables
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