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[thirdparty/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 }
2740 }
2741
2742 local_got = elf_local_got_refcounts (ibfd);
2743 if (!local_got)
2744 continue;
2745
2746 symtab_hdr = &elf_symtab_hdr (ibfd);
2747 locsymcount = symtab_hdr->sh_info;
2748 end_local_got = local_got + locsymcount;
2749 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
2750 s = htab->elf.sgot;
2751 srel = htab->elf.srelgot;
2752 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2753 {
2754 if (*local_got > 0)
2755 {
2756 *local_got = s->size;
2757 s->size += SPARC_ELF_WORD_BYTES (htab);
2758 if (*local_tls_type == GOT_TLS_GD)
2759 s->size += SPARC_ELF_WORD_BYTES (htab);
2760 if (bfd_link_pic (info)
2761 || *local_tls_type == GOT_TLS_GD
2762 || *local_tls_type == GOT_TLS_IE)
2763 srel->size += SPARC_ELF_RELA_BYTES (htab);
2764 }
2765 else
2766 *local_got = (bfd_vma) -1;
2767 }
2768 }
2769
2770 if (htab->tls_ldm_got.refcount > 0)
2771 {
2772 /* Allocate 2 got entries and 1 dynamic reloc for
2773 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
2774 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2775 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2776 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2777 }
2778 else
2779 htab->tls_ldm_got.offset = -1;
2780
2781 /* Allocate global sym .plt and .got entries, and space for global
2782 sym dynamic relocs. */
2783 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2784
2785 /* Allocate .plt and .got entries, and space for local symbols. */
2786 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2787
2788 if (! ABI_64_P (output_bfd)
2789 && !htab->is_vxworks
2790 && elf_hash_table (info)->dynamic_sections_created)
2791 {
2792 /* Make space for the trailing nop in .plt. */
2793 if (htab->elf.splt->size > 0)
2794 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
2795
2796 /* If the .got section is more than 0x1000 bytes, we add
2797 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2798 bit relocations have a greater chance of working.
2799
2800 FIXME: Make this optimization work for 64-bit too. */
2801 if (htab->elf.sgot->size >= 0x1000
2802 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2803 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2804 }
2805
2806 /* The check_relocs and adjust_dynamic_symbol entry points have
2807 determined the sizes of the various dynamic sections. Allocate
2808 memory for them. */
2809 for (s = dynobj->sections; s != NULL; s = s->next)
2810 {
2811 if ((s->flags & SEC_LINKER_CREATED) == 0)
2812 continue;
2813
2814 if (s == htab->elf.splt
2815 || s == htab->elf.sgot
2816 || s == htab->elf.sdynbss
2817 || s == htab->elf.sdynrelro
2818 || s == htab->elf.iplt
2819 || s == htab->elf.sgotplt)
2820 {
2821 /* Strip this section if we don't need it; see the
2822 comment below. */
2823 }
2824 else if (CONST_STRNEQ (s->name, ".rela"))
2825 {
2826 if (s->size != 0)
2827 {
2828 /* We use the reloc_count field as a counter if we need
2829 to copy relocs into the output file. */
2830 s->reloc_count = 0;
2831 }
2832 }
2833 else
2834 {
2835 /* It's not one of our sections. */
2836 continue;
2837 }
2838
2839 if (s->size == 0)
2840 {
2841 /* If we don't need this section, strip it from the
2842 output file. This is mostly to handle .rela.bss and
2843 .rela.plt. We must create both sections in
2844 create_dynamic_sections, because they must be created
2845 before the linker maps input sections to output
2846 sections. The linker does that before
2847 adjust_dynamic_symbol is called, and it is that
2848 function which decides whether anything needs to go
2849 into these sections. */
2850 s->flags |= SEC_EXCLUDE;
2851 continue;
2852 }
2853
2854 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2855 continue;
2856
2857 /* Allocate memory for the section contents. Zero the memory
2858 for the benefit of .rela.plt, which has 4 unused entries
2859 at the beginning, and we don't want garbage. */
2860 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2861 if (s->contents == NULL)
2862 return FALSE;
2863 }
2864
2865 if (elf_hash_table (info)->dynamic_sections_created)
2866 {
2867 /* Add some entries to the .dynamic section. We fill in the
2868 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2869 must add the entries now so that we get the correct size for
2870 the .dynamic section. The DT_DEBUG entry is filled in by the
2871 dynamic linker and used by the debugger. */
2872 #define add_dynamic_entry(TAG, VAL) \
2873 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2874
2875 if (bfd_link_executable (info))
2876 {
2877 if (!add_dynamic_entry (DT_DEBUG, 0))
2878 return FALSE;
2879 }
2880
2881 if (htab->elf.srelplt->size != 0)
2882 {
2883 if (!add_dynamic_entry (DT_PLTGOT, 0)
2884 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2885 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2886 || !add_dynamic_entry (DT_JMPREL, 0))
2887 return FALSE;
2888 }
2889
2890 if (!add_dynamic_entry (DT_RELA, 0)
2891 || !add_dynamic_entry (DT_RELASZ, 0)
2892 || !add_dynamic_entry (DT_RELAENT,
2893 SPARC_ELF_RELA_BYTES (htab)))
2894 return FALSE;
2895
2896 /* If any dynamic relocs apply to a read-only section,
2897 then we need a DT_TEXTREL entry. */
2898 if ((info->flags & DF_TEXTREL) == 0)
2899 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
2900
2901 if (info->flags & DF_TEXTREL)
2902 {
2903 if (!add_dynamic_entry (DT_TEXTREL, 0))
2904 return FALSE;
2905 }
2906
2907 if (ABI_64_P (output_bfd))
2908 {
2909 int reg;
2910 struct _bfd_sparc_elf_app_reg * app_regs;
2911 struct elf_strtab_hash *dynstr;
2912 struct elf_link_hash_table *eht = elf_hash_table (info);
2913
2914 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2915 entries if needed. */
2916 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2917 dynstr = eht->dynstr;
2918
2919 for (reg = 0; reg < 4; reg++)
2920 if (app_regs [reg].name != NULL)
2921 {
2922 struct elf_link_local_dynamic_entry *entry, *e;
2923
2924 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2925 return FALSE;
2926
2927 entry = (struct elf_link_local_dynamic_entry *)
2928 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2929 if (entry == NULL)
2930 return FALSE;
2931
2932 /* We cheat here a little bit: the symbol will not be local, so we
2933 put it at the end of the dynlocal linked list. We will fix it
2934 later on, as we have to fix other fields anyway. */
2935 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2936 entry->isym.st_size = 0;
2937 if (*app_regs [reg].name != '\0')
2938 entry->isym.st_name
2939 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2940 else
2941 entry->isym.st_name = 0;
2942 entry->isym.st_other = 0;
2943 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2944 STT_REGISTER);
2945 entry->isym.st_shndx = app_regs [reg].shndx;
2946 entry->isym.st_target_internal = 0;
2947 entry->next = NULL;
2948 entry->input_bfd = output_bfd;
2949 entry->input_indx = -1;
2950
2951 if (eht->dynlocal == NULL)
2952 eht->dynlocal = entry;
2953 else
2954 {
2955 for (e = eht->dynlocal; e->next; e = e->next)
2956 ;
2957 e->next = entry;
2958 }
2959 eht->dynsymcount++;
2960 }
2961 }
2962 if (htab->is_vxworks
2963 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2964 return FALSE;
2965 }
2966 #undef add_dynamic_entry
2967
2968 return TRUE;
2969 }
2970 \f
2971 bfd_boolean
2972 _bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2973 {
2974 if (!sec->used_by_bfd)
2975 {
2976 struct _bfd_sparc_elf_section_data *sdata;
2977 bfd_size_type amt = sizeof (*sdata);
2978
2979 sdata = bfd_zalloc (abfd, amt);
2980 if (sdata == NULL)
2981 return FALSE;
2982 sec->used_by_bfd = sdata;
2983 }
2984
2985 return _bfd_elf_new_section_hook (abfd, sec);
2986 }
2987
2988 bfd_boolean
2989 _bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2990 struct bfd_section *section,
2991 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2992 bfd_boolean *again)
2993 {
2994 if (bfd_link_relocatable (link_info))
2995 (*link_info->callbacks->einfo)
2996 (_("%P%F: --relax and -r may not be used together\n"));
2997
2998 *again = FALSE;
2999 sec_do_relax (section) = 1;
3000 return TRUE;
3001 }
3002 \f
3003 /* Return the base VMA address which should be subtracted from real addresses
3004 when resolving @dtpoff relocation.
3005 This is PT_TLS segment p_vaddr. */
3006
3007 static bfd_vma
3008 dtpoff_base (struct bfd_link_info *info)
3009 {
3010 /* If tls_sec is NULL, we should have signalled an error already. */
3011 if (elf_hash_table (info)->tls_sec == NULL)
3012 return 0;
3013 return elf_hash_table (info)->tls_sec->vma;
3014 }
3015
3016 /* Return the relocation value for @tpoff relocation
3017 if STT_TLS virtual address is ADDRESS. */
3018
3019 static bfd_vma
3020 tpoff (struct bfd_link_info *info, bfd_vma address)
3021 {
3022 struct elf_link_hash_table *htab = elf_hash_table (info);
3023 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
3024 bfd_vma static_tls_size;
3025
3026 /* If tls_sec is NULL, we should have signalled an error already. */
3027 if (htab->tls_sec == NULL)
3028 return 0;
3029
3030 /* Consider special static TLS alignment requirements. */
3031 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
3032 return address - static_tls_size - htab->tls_sec->vma;
3033 }
3034
3035 /* Return the relocation value for a %gdop relocation. */
3036
3037 static bfd_vma
3038 gdopoff (struct bfd_link_info *info, bfd_vma address)
3039 {
3040 struct elf_link_hash_table *htab = elf_hash_table (info);
3041 bfd_vma got_base;
3042
3043 got_base = (htab->hgot->root.u.def.value
3044 + htab->hgot->root.u.def.section->output_offset
3045 + htab->hgot->root.u.def.section->output_section->vma);
3046
3047 return address - got_base;
3048 }
3049
3050 /* Return whether H is local and its ADDRESS is within 4G of
3051 _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
3052 sethi, xor sequence. */
3053
3054 static bfd_boolean
3055 gdop_relative_offset_ok (struct bfd_link_info *info,
3056 struct elf_link_hash_entry *h,
3057 bfd_vma address ATTRIBUTE_UNUSED)
3058 {
3059 if (!SYMBOL_REFERENCES_LOCAL (info, h))
3060 return FALSE;
3061 /* If H is undefined, ADDRESS will be zero. We can't allow a
3062 relative offset to "zero" when producing PIEs or shared libs.
3063 Note that to get here with an undefined symbol it must also be
3064 hidden or internal visibility. */
3065 if (bfd_link_pic (info)
3066 && h != NULL
3067 && (h->root.type == bfd_link_hash_undefweak
3068 || h->root.type == bfd_link_hash_undefined))
3069 return FALSE;
3070 #ifdef BFD64
3071 return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
3072 #else
3073 return TRUE;
3074 #endif
3075 }
3076
3077 /* Relocate a SPARC ELF section. */
3078
3079 bfd_boolean
3080 _bfd_sparc_elf_relocate_section (bfd *output_bfd,
3081 struct bfd_link_info *info,
3082 bfd *input_bfd,
3083 asection *input_section,
3084 bfd_byte *contents,
3085 Elf_Internal_Rela *relocs,
3086 Elf_Internal_Sym *local_syms,
3087 asection **local_sections)
3088 {
3089 struct _bfd_sparc_elf_link_hash_table *htab;
3090 Elf_Internal_Shdr *symtab_hdr;
3091 struct elf_link_hash_entry **sym_hashes;
3092 bfd_vma *local_got_offsets;
3093 bfd_vma got_base;
3094 asection *sreloc;
3095 Elf_Internal_Rela *rel;
3096 Elf_Internal_Rela *relend;
3097 int num_relocs;
3098 bfd_boolean is_vxworks_tls;
3099
3100 htab = _bfd_sparc_elf_hash_table (info);
3101 BFD_ASSERT (htab != NULL);
3102 symtab_hdr = &elf_symtab_hdr (input_bfd);
3103 sym_hashes = elf_sym_hashes (input_bfd);
3104 local_got_offsets = elf_local_got_offsets (input_bfd);
3105
3106 if (elf_hash_table (info)->hgot == NULL)
3107 got_base = 0;
3108 else
3109 got_base = elf_hash_table (info)->hgot->root.u.def.value;
3110
3111 sreloc = elf_section_data (input_section)->sreloc;
3112 /* We have to handle relocations in vxworks .tls_vars sections
3113 specially, because the dynamic loader is 'weird'. */
3114 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3115 && !strcmp (input_section->output_section->name,
3116 ".tls_vars"));
3117
3118 rel = relocs;
3119 if (ABI_64_P (output_bfd))
3120 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
3121 else
3122 num_relocs = input_section->reloc_count;
3123 relend = relocs + num_relocs;
3124 for (; rel < relend; rel++)
3125 {
3126 int r_type, tls_type;
3127 reloc_howto_type *howto;
3128 unsigned long r_symndx;
3129 struct elf_link_hash_entry *h;
3130 struct _bfd_sparc_elf_link_hash_entry *eh;
3131 Elf_Internal_Sym *sym;
3132 asection *sec;
3133 bfd_vma relocation, off;
3134 bfd_reloc_status_type r;
3135 bfd_boolean is_plt = FALSE;
3136 bfd_boolean unresolved_reloc;
3137 bfd_boolean resolved_to_zero;
3138 bfd_boolean relative_reloc;
3139
3140 r_type = SPARC_ELF_R_TYPE (rel->r_info);
3141 if (r_type == R_SPARC_GNU_VTINHERIT
3142 || r_type == R_SPARC_GNU_VTENTRY)
3143 continue;
3144
3145 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
3146 {
3147 bfd_set_error (bfd_error_bad_value);
3148 return FALSE;
3149 }
3150 howto = _bfd_sparc_elf_howto_table + r_type;
3151
3152 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
3153 h = NULL;
3154 sym = NULL;
3155 sec = NULL;
3156 unresolved_reloc = FALSE;
3157 if (r_symndx < symtab_hdr->sh_info)
3158 {
3159 sym = local_syms + r_symndx;
3160 sec = local_sections[r_symndx];
3161 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
3162
3163 if (!bfd_link_relocatable (info)
3164 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
3165 {
3166 /* Relocate against local STT_GNU_IFUNC symbol. */
3167 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
3168 rel, FALSE);
3169 if (h == NULL)
3170 abort ();
3171
3172 /* Set STT_GNU_IFUNC symbol value. */
3173 h->root.u.def.value = sym->st_value;
3174 h->root.u.def.section = sec;
3175 }
3176 }
3177 else
3178 {
3179 bfd_boolean warned, ignored;
3180
3181 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3182 r_symndx, symtab_hdr, sym_hashes,
3183 h, sec, relocation,
3184 unresolved_reloc, warned, ignored);
3185 if (warned)
3186 {
3187 /* To avoid generating warning messages about truncated
3188 relocations, set the relocation's address to be the same as
3189 the start of this section. */
3190 if (input_section->output_section != NULL)
3191 relocation = input_section->output_section->vma;
3192 else
3193 relocation = 0;
3194 }
3195 }
3196
3197 if (sec != NULL && discarded_section (sec))
3198 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3199 rel, 1, relend, howto, 0, contents);
3200
3201 if (bfd_link_relocatable (info))
3202 continue;
3203
3204 if (h != NULL
3205 && h->type == STT_GNU_IFUNC
3206 && h->def_regular)
3207 {
3208 asection *plt_sec;
3209 const char *name;
3210
3211 if ((input_section->flags & SEC_ALLOC) == 0
3212 || h->plt.offset == (bfd_vma) -1)
3213 abort ();
3214
3215 plt_sec = htab->elf.splt;
3216 if (! plt_sec)
3217 plt_sec =htab->elf.iplt;
3218
3219 switch (r_type)
3220 {
3221 case R_SPARC_GOTDATA_OP:
3222 continue;
3223
3224 case R_SPARC_GOTDATA_OP_HIX22:
3225 case R_SPARC_GOTDATA_OP_LOX10:
3226 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3227 ? R_SPARC_GOT22
3228 : R_SPARC_GOT10);
3229 howto = _bfd_sparc_elf_howto_table + r_type;
3230 /* Fall through. */
3231
3232 case R_SPARC_GOT10:
3233 case R_SPARC_GOT13:
3234 case R_SPARC_GOT22:
3235 if (htab->elf.sgot == NULL)
3236 abort ();
3237 off = h->got.offset;
3238 if (off == (bfd_vma) -1)
3239 abort();
3240 relocation = htab->elf.sgot->output_offset + off - got_base;
3241 goto do_relocation;
3242
3243 case R_SPARC_WPLT30:
3244 case R_SPARC_WDISP30:
3245 relocation = (plt_sec->output_section->vma
3246 + plt_sec->output_offset + h->plt.offset);
3247 goto do_relocation;
3248
3249 case R_SPARC_32:
3250 case R_SPARC_64:
3251 if (bfd_link_pic (info) && h->non_got_ref)
3252 {
3253 Elf_Internal_Rela outrel;
3254 bfd_vma offset;
3255
3256 offset = _bfd_elf_section_offset (output_bfd, info,
3257 input_section,
3258 rel->r_offset);
3259 if (offset == (bfd_vma) -1
3260 || offset == (bfd_vma) -2)
3261 abort();
3262
3263 outrel.r_offset = (input_section->output_section->vma
3264 + input_section->output_offset
3265 + offset);
3266
3267 if (h->dynindx == -1
3268 || h->forced_local
3269 || bfd_link_executable (info))
3270 {
3271 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3272 0, R_SPARC_IRELATIVE);
3273 outrel.r_addend = relocation + rel->r_addend;
3274 }
3275 else
3276 {
3277 if (h->dynindx == -1)
3278 abort();
3279 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3280 outrel.r_addend = rel->r_addend;
3281 }
3282
3283 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3284 continue;
3285 }
3286
3287 relocation = (plt_sec->output_section->vma
3288 + plt_sec->output_offset + h->plt.offset);
3289 goto do_relocation;
3290
3291 case R_SPARC_HI22:
3292 case R_SPARC_LO10:
3293 /* We should only see such relocs in static links. */
3294 if (bfd_link_pic (info))
3295 abort();
3296 relocation = (plt_sec->output_section->vma
3297 + plt_sec->output_offset + h->plt.offset);
3298 goto do_relocation;
3299
3300 default:
3301 if (h->root.root.string)
3302 name = h->root.root.string;
3303 else
3304 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3305 NULL);
3306 _bfd_error_handler
3307 /* xgettext:c-format */
3308 (_("%B: relocation %s against STT_GNU_IFUNC "
3309 "symbol `%s' isn't handled by %s"), input_bfd,
3310 _bfd_sparc_elf_howto_table[r_type].name,
3311 name, __FUNCTION__);
3312 bfd_set_error (bfd_error_bad_value);
3313 return FALSE;
3314 }
3315 }
3316
3317 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
3318 resolved_to_zero = (eh != NULL
3319 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh));
3320
3321 switch (r_type)
3322 {
3323 case R_SPARC_GOTDATA_OP_HIX22:
3324 case R_SPARC_GOTDATA_OP_LOX10:
3325 if (gdop_relative_offset_ok (info, h, relocation))
3326 {
3327 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3328 ? R_SPARC_GOTDATA_HIX22
3329 : R_SPARC_GOTDATA_LOX10);
3330 howto = _bfd_sparc_elf_howto_table + r_type;
3331 }
3332 break;
3333
3334 case R_SPARC_GOTDATA_OP:
3335 if (gdop_relative_offset_ok (info, h, relocation))
3336 {
3337 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3338
3339 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3340 relocation = 0x80000000 | (insn & 0x3e07c01f);
3341 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3342 }
3343 continue;
3344 }
3345
3346 switch (r_type)
3347 {
3348 case R_SPARC_GOTDATA_HIX22:
3349 case R_SPARC_GOTDATA_LOX10:
3350 relocation = gdopoff (info, relocation);
3351 break;
3352
3353 case R_SPARC_GOTDATA_OP_HIX22:
3354 case R_SPARC_GOTDATA_OP_LOX10:
3355 case R_SPARC_GOT10:
3356 case R_SPARC_GOT13:
3357 case R_SPARC_GOT22:
3358 /* Relocation is to the entry for this symbol in the global
3359 offset table. */
3360 if (htab->elf.sgot == NULL)
3361 abort ();
3362
3363 relative_reloc = FALSE;
3364 if (h != NULL)
3365 {
3366 bfd_boolean dyn;
3367
3368 off = h->got.offset;
3369 BFD_ASSERT (off != (bfd_vma) -1);
3370 dyn = elf_hash_table (info)->dynamic_sections_created;
3371
3372 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3373 bfd_link_pic (info),
3374 h)
3375 || (bfd_link_pic (info)
3376 && SYMBOL_REFERENCES_LOCAL (info, h)))
3377 {
3378 /* This is actually a static link, or it is a
3379 -Bsymbolic link and the symbol is defined
3380 locally, or the symbol was forced to be local
3381 because of a version file. We must initialize
3382 this entry in the global offset table. Since the
3383 offset must always be a multiple of 8 for 64-bit
3384 and 4 for 32-bit, we use the least significant bit
3385 to record whether we have initialized it already.
3386
3387 When doing a dynamic link, we create a .rela.got
3388 relocation entry to initialize the value. This
3389 is done in the finish_dynamic_symbol routine. */
3390 if ((off & 1) != 0)
3391 off &= ~1;
3392 else
3393 {
3394 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3395 htab->elf.sgot->contents + off);
3396 h->got.offset |= 1;
3397
3398 if (h->dynindx == -1
3399 && !h->forced_local
3400 && h->root.type != bfd_link_hash_undefweak
3401 && bfd_link_pic (info))
3402 {
3403 /* If this symbol isn't dynamic in PIC
3404 generate R_SPARC_RELATIVE here. */
3405 relative_reloc = TRUE;
3406 }
3407 }
3408 }
3409 else
3410 unresolved_reloc = FALSE;
3411 }
3412 else
3413 {
3414 BFD_ASSERT (local_got_offsets != NULL
3415 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3416
3417 off = local_got_offsets[r_symndx];
3418
3419 /* The offset must always be a multiple of 8 on 64-bit and
3420 4 on 32-bit. We use the least significant bit to record
3421 whether we have already processed this entry. */
3422 if ((off & 1) != 0)
3423 off &= ~1;
3424 else
3425 {
3426 if (bfd_link_pic (info))
3427 {
3428 relative_reloc = TRUE;
3429 }
3430
3431 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3432 htab->elf.sgot->contents + off);
3433 local_got_offsets[r_symndx] |= 1;
3434 }
3435 }
3436
3437 if (relative_reloc)
3438 {
3439 asection *s;
3440 Elf_Internal_Rela outrel;
3441
3442 /* We need to generate a R_SPARC_RELATIVE reloc
3443 for the dynamic linker. */
3444 s = htab->elf.srelgot;
3445 BFD_ASSERT (s != NULL);
3446
3447 outrel.r_offset = (htab->elf.sgot->output_section->vma
3448 + htab->elf.sgot->output_offset
3449 + off);
3450 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3451 0, R_SPARC_RELATIVE);
3452 outrel.r_addend = relocation;
3453 relocation = 0;
3454 sparc_elf_append_rela (output_bfd, s, &outrel);
3455 }
3456
3457 relocation = htab->elf.sgot->output_offset + off - got_base;
3458 break;
3459
3460 case R_SPARC_PLT32:
3461 case R_SPARC_PLT64:
3462 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3463 {
3464 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3465 goto r_sparc_plt32;
3466 }
3467 /* Fall through. */
3468
3469 case R_SPARC_WPLT30:
3470 case R_SPARC_HIPLT22:
3471 case R_SPARC_LOPLT10:
3472 case R_SPARC_PCPLT32:
3473 case R_SPARC_PCPLT22:
3474 case R_SPARC_PCPLT10:
3475 r_sparc_wplt30:
3476 /* Relocation is to the entry for this symbol in the
3477 procedure linkage table. */
3478
3479 if (! ABI_64_P (output_bfd))
3480 {
3481 /* The Solaris native assembler will generate a WPLT30 reloc
3482 for a local symbol if you assemble a call from one
3483 section to another when using -K pic. We treat it as
3484 WDISP30. */
3485 if (h == NULL)
3486 break;
3487 }
3488 /* PR 7027: We need similar behaviour for 64-bit binaries. */
3489 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3490 break;
3491 else
3492 {
3493 BFD_ASSERT (h != NULL);
3494 }
3495
3496 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3497 {
3498 /* We didn't make a PLT entry for this symbol. This
3499 happens when statically linking PIC code, or when
3500 using -Bsymbolic. */
3501 break;
3502 }
3503
3504 relocation = (htab->elf.splt->output_section->vma
3505 + htab->elf.splt->output_offset
3506 + h->plt.offset);
3507 unresolved_reloc = FALSE;
3508 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3509 {
3510 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3511 is_plt = TRUE;
3512 goto r_sparc_plt32;
3513 }
3514 break;
3515
3516 case R_SPARC_PC10:
3517 case R_SPARC_PC22:
3518 case R_SPARC_PC_HH22:
3519 case R_SPARC_PC_HM10:
3520 case R_SPARC_PC_LM22:
3521 if (h != NULL
3522 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3523 break;
3524 /* Fall through. */
3525 case R_SPARC_DISP8:
3526 case R_SPARC_DISP16:
3527 case R_SPARC_DISP32:
3528 case R_SPARC_DISP64:
3529 case R_SPARC_WDISP30:
3530 case R_SPARC_WDISP22:
3531 case R_SPARC_WDISP19:
3532 case R_SPARC_WDISP16:
3533 case R_SPARC_WDISP10:
3534 case R_SPARC_8:
3535 case R_SPARC_16:
3536 case R_SPARC_32:
3537 case R_SPARC_HI22:
3538 case R_SPARC_22:
3539 case R_SPARC_13:
3540 case R_SPARC_LO10:
3541 case R_SPARC_UA16:
3542 case R_SPARC_UA32:
3543 case R_SPARC_10:
3544 case R_SPARC_11:
3545 case R_SPARC_64:
3546 case R_SPARC_OLO10:
3547 case R_SPARC_HH22:
3548 case R_SPARC_HM10:
3549 case R_SPARC_LM22:
3550 case R_SPARC_7:
3551 case R_SPARC_5:
3552 case R_SPARC_6:
3553 case R_SPARC_HIX22:
3554 case R_SPARC_LOX10:
3555 case R_SPARC_H44:
3556 case R_SPARC_M44:
3557 case R_SPARC_L44:
3558 case R_SPARC_H34:
3559 case R_SPARC_UA64:
3560 r_sparc_plt32:
3561 if ((input_section->flags & SEC_ALLOC) == 0
3562 || is_vxworks_tls)
3563 break;
3564
3565 /* Copy dynamic function pointer relocations. Don't generate
3566 dynamic relocations against resolved undefined weak symbols
3567 in PIE. */
3568 if ((bfd_link_pic (info)
3569 && (h == NULL
3570 || ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3571 && !resolved_to_zero)
3572 || h->root.type != bfd_link_hash_undefweak))
3573 && (! howto->pc_relative
3574 || !SYMBOL_CALLS_LOCAL (info, h)))
3575 || (!bfd_link_pic (info)
3576 && h != NULL
3577 && h->dynindx != -1
3578 && !h->non_got_ref
3579 && ((h->def_dynamic
3580 && !h->def_regular)
3581 || (h->root.type == bfd_link_hash_undefweak
3582 && !resolved_to_zero)
3583 || h->root.type == bfd_link_hash_undefined)))
3584 {
3585 Elf_Internal_Rela outrel;
3586 bfd_boolean skip, relocate = FALSE;
3587
3588 /* When generating a shared object, these relocations
3589 are copied into the output file to be resolved at run
3590 time. */
3591
3592 BFD_ASSERT (sreloc != NULL);
3593
3594 skip = FALSE;
3595
3596 outrel.r_offset =
3597 _bfd_elf_section_offset (output_bfd, info, input_section,
3598 rel->r_offset);
3599 if (outrel.r_offset == (bfd_vma) -1)
3600 skip = TRUE;
3601 else if (outrel.r_offset == (bfd_vma) -2)
3602 skip = TRUE, relocate = TRUE;
3603 outrel.r_offset += (input_section->output_section->vma
3604 + input_section->output_offset);
3605
3606 /* Optimize unaligned reloc usage now that we know where
3607 it finally resides. */
3608 switch (r_type)
3609 {
3610 case R_SPARC_16:
3611 if (outrel.r_offset & 1)
3612 r_type = R_SPARC_UA16;
3613 break;
3614 case R_SPARC_UA16:
3615 if (!(outrel.r_offset & 1))
3616 r_type = R_SPARC_16;
3617 break;
3618 case R_SPARC_32:
3619 if (outrel.r_offset & 3)
3620 r_type = R_SPARC_UA32;
3621 break;
3622 case R_SPARC_UA32:
3623 if (!(outrel.r_offset & 3))
3624 r_type = R_SPARC_32;
3625 break;
3626 case R_SPARC_64:
3627 if (outrel.r_offset & 7)
3628 r_type = R_SPARC_UA64;
3629 break;
3630 case R_SPARC_UA64:
3631 if (!(outrel.r_offset & 7))
3632 r_type = R_SPARC_64;
3633 break;
3634 case R_SPARC_DISP8:
3635 case R_SPARC_DISP16:
3636 case R_SPARC_DISP32:
3637 case R_SPARC_DISP64:
3638 /* If the symbol is not dynamic, we should not keep
3639 a dynamic relocation. But an .rela.* slot has been
3640 allocated for it, output R_SPARC_NONE.
3641 FIXME: Add code tracking needed dynamic relocs as
3642 e.g. i386 has. */
3643 if (h->dynindx == -1)
3644 skip = TRUE, relocate = TRUE;
3645 break;
3646 }
3647
3648 if (skip)
3649 memset (&outrel, 0, sizeof outrel);
3650 /* h->dynindx may be -1 if the symbol was marked to
3651 become local. */
3652 else if (h != NULL
3653 && h->dynindx != -1
3654 && (_bfd_sparc_elf_howto_table[r_type].pc_relative
3655 || !bfd_link_pic (info)
3656 || !SYMBOLIC_BIND (info, h)
3657 || !h->def_regular))
3658 {
3659 BFD_ASSERT (h->dynindx != -1);
3660 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3661 outrel.r_addend = rel->r_addend;
3662 }
3663 else
3664 {
3665 if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3666 || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
3667 {
3668 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3669 0, R_SPARC_RELATIVE);
3670 outrel.r_addend = relocation + rel->r_addend;
3671 }
3672 else
3673 {
3674 long indx;
3675
3676 outrel.r_addend = relocation + rel->r_addend;
3677
3678 if (is_plt)
3679 sec = htab->elf.splt;
3680
3681 if (bfd_is_abs_section (sec))
3682 indx = 0;
3683 else if (sec == NULL || sec->owner == NULL)
3684 {
3685 bfd_set_error (bfd_error_bad_value);
3686 return FALSE;
3687 }
3688 else
3689 {
3690 asection *osec;
3691
3692 /* We are turning this relocation into one
3693 against a section symbol. It would be
3694 proper to subtract the symbol's value,
3695 osec->vma, from the emitted reloc addend,
3696 but ld.so expects buggy relocs. */
3697 osec = sec->output_section;
3698 indx = elf_section_data (osec)->dynindx;
3699
3700 if (indx == 0)
3701 {
3702 osec = htab->elf.text_index_section;
3703 indx = elf_section_data (osec)->dynindx;
3704 }
3705
3706 /* FIXME: we really should be able to link non-pic
3707 shared libraries. */
3708 if (indx == 0)
3709 {
3710 BFD_FAIL ();
3711 _bfd_error_handler
3712 (_("%B: probably compiled without -fPIC?"),
3713 input_bfd);
3714 bfd_set_error (bfd_error_bad_value);
3715 return FALSE;
3716 }
3717 }
3718
3719 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3720 r_type);
3721 }
3722 }
3723
3724 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3725
3726 /* This reloc will be computed at runtime, so there's no
3727 need to do anything now. */
3728 if (! relocate)
3729 continue;
3730 }
3731 break;
3732
3733 case R_SPARC_TLS_GD_HI22:
3734 if (! ABI_64_P (input_bfd)
3735 && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
3736 {
3737 /* R_SPARC_REV32 used the same reloc number as
3738 R_SPARC_TLS_GD_HI22. */
3739 r_type = R_SPARC_REV32;
3740 break;
3741 }
3742 /* Fall through */
3743
3744 case R_SPARC_TLS_GD_LO10:
3745 case R_SPARC_TLS_IE_HI22:
3746 case R_SPARC_TLS_IE_LO10:
3747 r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
3748 tls_type = GOT_UNKNOWN;
3749 if (h == NULL && local_got_offsets)
3750 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3751 else if (h != NULL)
3752 {
3753 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3754 if (!bfd_link_pic (info)
3755 && h->dynindx == -1
3756 && tls_type == GOT_TLS_IE)
3757 switch (SPARC_ELF_R_TYPE (rel->r_info))
3758 {
3759 case R_SPARC_TLS_GD_HI22:
3760 case R_SPARC_TLS_IE_HI22:
3761 r_type = R_SPARC_TLS_LE_HIX22;
3762 break;
3763 default:
3764 r_type = R_SPARC_TLS_LE_LOX10;
3765 break;
3766 }
3767 }
3768 if (tls_type == GOT_TLS_IE)
3769 switch (r_type)
3770 {
3771 case R_SPARC_TLS_GD_HI22:
3772 r_type = R_SPARC_TLS_IE_HI22;
3773 break;
3774 case R_SPARC_TLS_GD_LO10:
3775 r_type = R_SPARC_TLS_IE_LO10;
3776 break;
3777 }
3778
3779 if (r_type == R_SPARC_TLS_LE_HIX22)
3780 {
3781 relocation = tpoff (info, relocation);
3782 break;
3783 }
3784 if (r_type == R_SPARC_TLS_LE_LOX10)
3785 {
3786 /* Change add into xor. */
3787 relocation = tpoff (info, relocation);
3788 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3789 contents + rel->r_offset)
3790 | 0x80182000), contents + rel->r_offset);
3791 break;
3792 }
3793
3794 if (h != NULL)
3795 {
3796 off = h->got.offset;
3797 h->got.offset |= 1;
3798 }
3799 else
3800 {
3801 BFD_ASSERT (local_got_offsets != NULL);
3802 off = local_got_offsets[r_symndx];
3803 local_got_offsets[r_symndx] |= 1;
3804 }
3805
3806 r_sparc_tlsldm:
3807 if (htab->elf.sgot == NULL)
3808 abort ();
3809
3810 if ((off & 1) != 0)
3811 off &= ~1;
3812 else
3813 {
3814 Elf_Internal_Rela outrel;
3815 int dr_type, indx;
3816
3817 if (htab->elf.srelgot == NULL)
3818 abort ();
3819
3820 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3821 htab->elf.sgot->contents + off);
3822 outrel.r_offset = (htab->elf.sgot->output_section->vma
3823 + htab->elf.sgot->output_offset + off);
3824 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3825 if (r_type == R_SPARC_TLS_IE_HI22
3826 || r_type == R_SPARC_TLS_IE_LO10)
3827 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3828 else
3829 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3830 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3831 outrel.r_addend = relocation - dtpoff_base (info);
3832 else
3833 outrel.r_addend = 0;
3834 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
3835 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3836
3837 if (r_type == R_SPARC_TLS_GD_HI22
3838 || r_type == R_SPARC_TLS_GD_LO10)
3839 {
3840 if (indx == 0)
3841 {
3842 BFD_ASSERT (! unresolved_reloc);
3843 SPARC_ELF_PUT_WORD (htab, output_bfd,
3844 relocation - dtpoff_base (info),
3845 (htab->elf.sgot->contents + off
3846 + SPARC_ELF_WORD_BYTES (htab)));
3847 }
3848 else
3849 {
3850 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3851 (htab->elf.sgot->contents + off
3852 + SPARC_ELF_WORD_BYTES (htab)));
3853 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3854 SPARC_ELF_DTPOFF_RELOC (htab));
3855 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
3856 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
3857 &outrel);
3858 }
3859 }
3860 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3861 {
3862 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3863 (htab->elf.sgot->contents + off
3864 + SPARC_ELF_WORD_BYTES (htab)));
3865 }
3866 }
3867
3868 if (off >= (bfd_vma) -2)
3869 abort ();
3870
3871 relocation = htab->elf.sgot->output_offset + off - got_base;
3872 unresolved_reloc = FALSE;
3873 howto = _bfd_sparc_elf_howto_table + r_type;
3874 break;
3875
3876 case R_SPARC_TLS_LDM_HI22:
3877 case R_SPARC_TLS_LDM_LO10:
3878 if (! bfd_link_pic (info))
3879 {
3880 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3881 continue;
3882 }
3883 off = htab->tls_ldm_got.offset;
3884 htab->tls_ldm_got.offset |= 1;
3885 goto r_sparc_tlsldm;
3886
3887 case R_SPARC_TLS_LDO_HIX22:
3888 case R_SPARC_TLS_LDO_LOX10:
3889 if (bfd_link_pic (info))
3890 {
3891 relocation -= dtpoff_base (info);
3892 break;
3893 }
3894
3895 r_type = (r_type == R_SPARC_TLS_LDO_HIX22
3896 ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
3897 /* Fall through. */
3898
3899 case R_SPARC_TLS_LE_HIX22:
3900 case R_SPARC_TLS_LE_LOX10:
3901 if (bfd_link_pic (info))
3902 {
3903 Elf_Internal_Rela outrel;
3904 bfd_boolean skip;
3905
3906 BFD_ASSERT (sreloc != NULL);
3907 skip = FALSE;
3908 outrel.r_offset =
3909 _bfd_elf_section_offset (output_bfd, info, input_section,
3910 rel->r_offset);
3911 if (outrel.r_offset == (bfd_vma) -1)
3912 skip = TRUE;
3913 else if (outrel.r_offset == (bfd_vma) -2)
3914 skip = TRUE;
3915 outrel.r_offset += (input_section->output_section->vma
3916 + input_section->output_offset);
3917 if (skip)
3918 memset (&outrel, 0, sizeof outrel);
3919 else
3920 {
3921 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3922 outrel.r_addend = relocation - dtpoff_base (info)
3923 + rel->r_addend;
3924 }
3925
3926 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3927 continue;
3928 }
3929 relocation = tpoff (info, relocation);
3930 break;
3931
3932 case R_SPARC_TLS_LDM_CALL:
3933 if (! bfd_link_pic (info))
3934 {
3935 /* mov %g0, %o0 */
3936 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3937 continue;
3938 }
3939 /* Fall through */
3940
3941 case R_SPARC_TLS_GD_CALL:
3942 tls_type = GOT_UNKNOWN;
3943 if (h == NULL && local_got_offsets)
3944 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3945 else if (h != NULL)
3946 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3947 if (! bfd_link_pic (info)
3948 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3949 {
3950 Elf_Internal_Rela *rel2;
3951 bfd_vma insn;
3952
3953 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
3954 {
3955 /* GD -> LE */
3956 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3957 continue;
3958 }
3959
3960 /* GD -> IE */
3961 if (rel + 1 < relend
3962 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3963 && rel[1].r_offset == rel->r_offset + 4
3964 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3965 && (((insn = bfd_get_32 (input_bfd,
3966 contents + rel[1].r_offset))
3967 >> 25) & 0x1f) == 8)
3968 {
3969 /* We have
3970 call __tls_get_addr, %tgd_call(foo)
3971 add %reg1, %reg2, %o0, %tgd_add(foo)
3972 and change it into IE:
3973 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3974 add %g7, %o0, %o0, %tie_add(foo).
3975 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3976 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3977 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3978 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3979 contents + rel->r_offset);
3980 bfd_put_32 (output_bfd, 0x9001c008,
3981 contents + rel->r_offset + 4);
3982 rel++;
3983 continue;
3984 }
3985
3986 /* We cannot just overwrite the delay slot instruction,
3987 as it might be what puts the %o0 argument to
3988 __tls_get_addr into place. So we have to transpose
3989 the delay slot with the add we patch in. */
3990 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3991 bfd_put_32 (output_bfd, insn,
3992 contents + rel->r_offset);
3993 bfd_put_32 (output_bfd, 0x9001c008,
3994 contents + rel->r_offset + 4);
3995
3996 rel2 = rel;
3997 while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3998 rel->r_offset + 4))
3999 != NULL)
4000 {
4001 /* If the instruction we moved has a relocation attached to
4002 it, adjust the offset so that it will apply to the correct
4003 instruction. */
4004 rel2->r_offset -= 4;
4005 }
4006 continue;
4007 }
4008
4009 h = (struct elf_link_hash_entry *)
4010 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
4011 FALSE, TRUE);
4012 BFD_ASSERT (h != NULL);
4013 r_type = R_SPARC_WPLT30;
4014 howto = _bfd_sparc_elf_howto_table + r_type;
4015 goto r_sparc_wplt30;
4016
4017 case R_SPARC_TLS_GD_ADD:
4018 tls_type = GOT_UNKNOWN;
4019 if (h == NULL && local_got_offsets)
4020 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
4021 else if (h != NULL)
4022 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
4023 if (! bfd_link_pic (info) || tls_type == GOT_TLS_IE)
4024 {
4025 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
4026 changed into IE:
4027 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
4028 or LE:
4029 add %g7, %reg2, %reg3. */
4030 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
4031 if ((h != NULL && h->dynindx != -1) || bfd_link_pic (info))
4032 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
4033 else
4034 relocation = (insn & ~0x7c000) | 0x1c000;
4035 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
4036 }
4037 continue;
4038
4039 case R_SPARC_TLS_LDM_ADD:
4040 if (! bfd_link_pic (info))
4041 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
4042 continue;
4043
4044 case R_SPARC_TLS_LDO_ADD:
4045 if (! bfd_link_pic (info))
4046 {
4047 /* Change rs1 into %g7. */
4048 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
4049 insn = (insn & ~0x7c000) | 0x1c000;
4050 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
4051 }
4052 continue;
4053
4054 case R_SPARC_TLS_IE_LD:
4055 case R_SPARC_TLS_IE_LDX:
4056 if (! bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
4057 {
4058 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
4059 int rs2 = insn & 0x1f;
4060 int rd = (insn >> 25) & 0x1f;
4061
4062 if (rs2 == rd)
4063 relocation = SPARC_NOP;
4064 else
4065 relocation = 0x80100000 | (insn & 0x3e00001f);
4066 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
4067 }
4068 continue;
4069
4070 case R_SPARC_TLS_IE_ADD:
4071 /* Totally useless relocation. */
4072 continue;
4073
4074 case R_SPARC_TLS_DTPOFF32:
4075 case R_SPARC_TLS_DTPOFF64:
4076 relocation -= dtpoff_base (info);
4077 break;
4078
4079 default:
4080 break;
4081 }
4082
4083 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
4084 because such sections are not SEC_ALLOC and thus ld.so will
4085 not process them. */
4086 if (unresolved_reloc
4087 && !((input_section->flags & SEC_DEBUGGING) != 0
4088 && h->def_dynamic)
4089 && _bfd_elf_section_offset (output_bfd, info, input_section,
4090 rel->r_offset) != (bfd_vma) -1)
4091 _bfd_error_handler
4092 /* xgettext:c-format */
4093 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
4094 input_bfd,
4095 input_section,
4096 rel->r_offset,
4097 howto->name,
4098 h->root.root.string);
4099
4100 r = bfd_reloc_continue;
4101 if (r_type == R_SPARC_OLO10)
4102 {
4103 bfd_vma x;
4104
4105 if (! ABI_64_P (output_bfd))
4106 abort ();
4107
4108 relocation += rel->r_addend;
4109 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
4110
4111 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4112 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
4113 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4114
4115 r = bfd_check_overflow (howto->complain_on_overflow,
4116 howto->bitsize, howto->rightshift,
4117 bfd_arch_bits_per_address (input_bfd),
4118 relocation);
4119 }
4120 else if (r_type == R_SPARC_WDISP16)
4121 {
4122 bfd_vma x;
4123
4124 relocation += rel->r_addend;
4125 relocation -= (input_section->output_section->vma
4126 + input_section->output_offset);
4127 relocation -= rel->r_offset;
4128
4129 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4130 x |= ((((relocation >> 2) & 0xc000) << 6)
4131 | ((relocation >> 2) & 0x3fff));
4132 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4133
4134 r = bfd_check_overflow (howto->complain_on_overflow,
4135 howto->bitsize, howto->rightshift,
4136 bfd_arch_bits_per_address (input_bfd),
4137 relocation);
4138 }
4139 else if (r_type == R_SPARC_WDISP10)
4140 {
4141 bfd_vma x;
4142
4143 relocation += rel->r_addend;
4144 relocation -= (input_section->output_section->vma
4145 + input_section->output_offset);
4146 relocation -= rel->r_offset;
4147
4148 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4149 x |= ((((relocation >> 2) & 0x300) << 11)
4150 | (((relocation >> 2) & 0xff) << 5));
4151 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4152
4153 r = bfd_check_overflow (howto->complain_on_overflow,
4154 howto->bitsize, howto->rightshift,
4155 bfd_arch_bits_per_address (input_bfd),
4156 relocation);
4157 }
4158 else if (r_type == R_SPARC_REV32)
4159 {
4160 bfd_vma x;
4161
4162 relocation = relocation + rel->r_addend;
4163
4164 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4165 x = x + relocation;
4166 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
4167 r = bfd_reloc_ok;
4168 }
4169 else if (r_type == R_SPARC_TLS_LDO_HIX22
4170 || r_type == R_SPARC_TLS_LE_HIX22)
4171 {
4172 bfd_vma x;
4173
4174 relocation += rel->r_addend;
4175 if (r_type == R_SPARC_TLS_LE_HIX22)
4176 relocation ^= MINUS_ONE;
4177
4178 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4179 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4180 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4181 r = bfd_reloc_ok;
4182 }
4183 else if (r_type == R_SPARC_TLS_LDO_LOX10
4184 || r_type == R_SPARC_TLS_LE_LOX10)
4185 {
4186 bfd_vma x;
4187
4188 relocation += rel->r_addend;
4189 relocation &= 0x3ff;
4190 if (r_type == R_SPARC_TLS_LE_LOX10)
4191 relocation |= 0x1c00;
4192
4193 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4194 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4195 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4196
4197 r = bfd_reloc_ok;
4198 }
4199 else if (r_type == R_SPARC_HIX22
4200 || r_type == R_SPARC_GOTDATA_HIX22
4201 || r_type == R_SPARC_GOTDATA_OP_HIX22)
4202 {
4203 bfd_vma x;
4204
4205 relocation += rel->r_addend;
4206 if (r_type == R_SPARC_HIX22
4207 || (bfd_signed_vma) relocation < 0)
4208 relocation = relocation ^ MINUS_ONE;
4209
4210 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4211 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4212 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4213
4214 r = bfd_check_overflow (howto->complain_on_overflow,
4215 howto->bitsize, howto->rightshift,
4216 bfd_arch_bits_per_address (input_bfd),
4217 relocation);
4218 }
4219 else if (r_type == R_SPARC_LOX10
4220 || r_type == R_SPARC_GOTDATA_LOX10
4221 || r_type == R_SPARC_GOTDATA_OP_LOX10)
4222 {
4223 bfd_vma x;
4224
4225 relocation += rel->r_addend;
4226 if (r_type == R_SPARC_LOX10
4227 || (bfd_signed_vma) relocation < 0)
4228 relocation = (relocation & 0x3ff) | 0x1c00;
4229 else
4230 relocation = (relocation & 0x3ff);
4231
4232 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4233 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4234 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4235
4236 r = bfd_reloc_ok;
4237 }
4238 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
4239 && sec_do_relax (input_section)
4240 && rel->r_offset + 4 < input_section->size)
4241 {
4242 #define G0 0
4243 #define O7 15
4244 #define XCC (2 << 20)
4245 #define COND(x) (((x)&0xf)<<25)
4246 #define CONDA COND(0x8)
4247 #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
4248 #define INSN_BA (F2(0,2) | CONDA)
4249 #define INSN_OR F3(2, 0x2, 0)
4250 #define INSN_NOP F2(0,4)
4251
4252 bfd_vma x, y;
4253
4254 /* If the instruction is a call with either:
4255 restore
4256 arithmetic instruction with rd == %o7
4257 where rs1 != %o7 and rs2 if it is register != %o7
4258 then we can optimize if the call destination is near
4259 by changing the call into a branch always. */
4260 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4261 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
4262 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
4263 {
4264 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
4265 || ((y & OP3(0x28)) == 0 /* arithmetic */
4266 && (y & RD(~0)) == RD(O7)))
4267 && (y & RS1(~0)) != RS1(O7)
4268 && ((y & F3I(~0))
4269 || (y & RS2(~0)) != RS2(O7)))
4270 {
4271 bfd_vma reloc;
4272
4273 reloc = relocation + rel->r_addend - rel->r_offset;
4274 reloc -= (input_section->output_section->vma
4275 + input_section->output_offset);
4276
4277 /* Ensure the branch fits into simm22. */
4278 if ((reloc & 3) == 0
4279 && ((reloc & ~(bfd_vma)0x7fffff) == 0
4280 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4281 {
4282 reloc >>= 2;
4283
4284 /* Check whether it fits into simm19. */
4285 if (((reloc & 0x3c0000) == 0
4286 || (reloc & 0x3c0000) == 0x3c0000)
4287 && (ABI_64_P (output_bfd)
4288 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4289 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4290 else
4291 x = INSN_BA | (reloc & 0x3fffff); /* ba */
4292 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4293 r = bfd_reloc_ok;
4294 if (rel->r_offset >= 4
4295 && (y & (0xffffffff ^ RS1(~0)))
4296 == (INSN_OR | RD(O7) | RS2(G0)))
4297 {
4298 bfd_vma z;
4299 unsigned int reg;
4300
4301 z = bfd_get_32 (input_bfd,
4302 contents + rel->r_offset - 4);
4303 if ((z & (0xffffffff ^ RD(~0)))
4304 != (INSN_OR | RS1(O7) | RS2(G0)))
4305 continue;
4306
4307 /* The sequence was
4308 or %o7, %g0, %rN
4309 call foo
4310 or %rN, %g0, %o7
4311
4312 If call foo was replaced with ba, replace
4313 or %rN, %g0, %o7 with nop. */
4314
4315 reg = (y & RS1(~0)) >> 14;
4316 if (reg != ((z & RD(~0)) >> 25)
4317 || reg == G0 || reg == O7)
4318 continue;
4319
4320 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4321 contents + rel->r_offset + 4);
4322 }
4323
4324 }
4325 }
4326 }
4327 }
4328
4329 if (r == bfd_reloc_continue)
4330 {
4331 do_relocation:
4332 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4333 contents, rel->r_offset,
4334 relocation, rel->r_addend);
4335 }
4336 if (r != bfd_reloc_ok)
4337 {
4338 switch (r)
4339 {
4340 default:
4341 case bfd_reloc_outofrange:
4342 abort ();
4343 case bfd_reloc_overflow:
4344 {
4345 const char *name;
4346
4347 /* The Solaris native linker silently disregards overflows.
4348 We don't, but this breaks stabs debugging info, whose
4349 relocations are only 32-bits wide. Ignore overflows in
4350 this case and also for discarded entries. */
4351 if ((r_type == R_SPARC_32
4352 || r_type == R_SPARC_UA32
4353 || r_type == R_SPARC_DISP32)
4354 && (((input_section->flags & SEC_DEBUGGING) != 0
4355 && strcmp (bfd_section_name (input_bfd,
4356 input_section),
4357 ".stab") == 0)
4358 || _bfd_elf_section_offset (output_bfd, info,
4359 input_section,
4360 rel->r_offset)
4361 == (bfd_vma)-1))
4362 break;
4363
4364 if (h != NULL)
4365 {
4366 /* Assume this is a call protected by other code that
4367 detect the symbol is undefined. If this is the case,
4368 we can safely ignore the overflow. If not, the
4369 program is hosed anyway, and a little warning isn't
4370 going to help. */
4371 if (h->root.type == bfd_link_hash_undefweak
4372 && howto->pc_relative)
4373 break;
4374
4375 name = NULL;
4376 }
4377 else
4378 {
4379 name = bfd_elf_string_from_elf_section (input_bfd,
4380 symtab_hdr->sh_link,
4381 sym->st_name);
4382 if (name == NULL)
4383 return FALSE;
4384 if (*name == '\0')
4385 name = bfd_section_name (input_bfd, sec);
4386 }
4387 (*info->callbacks->reloc_overflow)
4388 (info, (h ? &h->root : NULL), name, howto->name,
4389 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4390 }
4391 break;
4392 }
4393 }
4394 }
4395
4396 return TRUE;
4397 }
4398
4399 /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4400 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4401 is the offset of the associated .got.plt entry from
4402 _GLOBAL_OFFSET_TABLE_. */
4403
4404 static void
4405 sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4406 bfd_vma plt_offset, bfd_vma plt_index,
4407 bfd_vma got_offset)
4408 {
4409 bfd_vma got_base;
4410 const bfd_vma *plt_entry;
4411 struct _bfd_sparc_elf_link_hash_table *htab;
4412 bfd_byte *loc;
4413 Elf_Internal_Rela rela;
4414
4415 htab = _bfd_sparc_elf_hash_table (info);
4416 BFD_ASSERT (htab != NULL);
4417
4418 if (bfd_link_pic (info))
4419 {
4420 plt_entry = sparc_vxworks_shared_plt_entry;
4421 got_base = 0;
4422 }
4423 else
4424 {
4425 plt_entry = sparc_vxworks_exec_plt_entry;
4426 got_base = (htab->elf.hgot->root.u.def.value
4427 + htab->elf.hgot->root.u.def.section->output_offset
4428 + htab->elf.hgot->root.u.def.section->output_section->vma);
4429 }
4430
4431 /* Fill in the entry in the procedure linkage table. */
4432 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
4433 htab->elf.splt->contents + plt_offset);
4434 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
4435 htab->elf.splt->contents + plt_offset + 4);
4436 bfd_put_32 (output_bfd, plt_entry[2],
4437 htab->elf.splt->contents + plt_offset + 8);
4438 bfd_put_32 (output_bfd, plt_entry[3],
4439 htab->elf.splt->contents + plt_offset + 12);
4440 bfd_put_32 (output_bfd, plt_entry[4],
4441 htab->elf.splt->contents + plt_offset + 16);
4442 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
4443 htab->elf.splt->contents + plt_offset + 20);
4444 /* PC-relative displacement for a branch to the start of
4445 the PLT section. */
4446 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4447 & 0x003fffff),
4448 htab->elf.splt->contents + plt_offset + 24);
4449 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
4450 htab->elf.splt->contents + plt_offset + 28);
4451
4452 /* Fill in the .got.plt entry, pointing initially at the
4453 second half of the PLT entry. */
4454 BFD_ASSERT (htab->elf.sgotplt != NULL);
4455 bfd_put_32 (output_bfd,
4456 htab->elf.splt->output_section->vma
4457 + htab->elf.splt->output_offset
4458 + plt_offset + 20,
4459 htab->elf.sgotplt->contents + got_offset);
4460
4461 /* Add relocations to .rela.plt.unloaded. */
4462 if (!bfd_link_pic (info))
4463 {
4464 loc = (htab->srelplt2->contents
4465 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4466
4467 /* Relocate the initial sethi. */
4468 rela.r_offset = (htab->elf.splt->output_section->vma
4469 + htab->elf.splt->output_offset
4470 + plt_offset);
4471 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4472 rela.r_addend = got_offset;
4473 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4474 loc += sizeof (Elf32_External_Rela);
4475
4476 /* Likewise the following or. */
4477 rela.r_offset += 4;
4478 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4479 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4480 loc += sizeof (Elf32_External_Rela);
4481
4482 /* Relocate the .got.plt entry. */
4483 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4484 + htab->elf.sgotplt->output_offset
4485 + got_offset);
4486 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4487 rela.r_addend = plt_offset + 20;
4488 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4489 }
4490 }
4491
4492 /* Finish up dynamic symbol handling. We set the contents of various
4493 dynamic sections here. */
4494
4495 bfd_boolean
4496 _bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4497 struct bfd_link_info *info,
4498 struct elf_link_hash_entry *h,
4499 Elf_Internal_Sym *sym)
4500 {
4501 struct _bfd_sparc_elf_link_hash_table *htab;
4502 const struct elf_backend_data *bed;
4503 struct _bfd_sparc_elf_link_hash_entry *eh;
4504 bfd_boolean local_undefweak;
4505
4506 htab = _bfd_sparc_elf_hash_table (info);
4507 BFD_ASSERT (htab != NULL);
4508 bed = get_elf_backend_data (output_bfd);
4509
4510 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4511
4512 /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4513 resolved undefined weak symbols in executable so that their
4514 references have value 0 at run-time. */
4515 local_undefweak = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
4516
4517 if (h->plt.offset != (bfd_vma) -1)
4518 {
4519 asection *splt;
4520 asection *srela;
4521 Elf_Internal_Rela rela;
4522 bfd_byte *loc;
4523 bfd_vma r_offset, got_offset;
4524 int rela_index;
4525
4526 /* When building a static executable, use .iplt and
4527 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4528 if (htab->elf.splt != NULL)
4529 {
4530 splt = htab->elf.splt;
4531 srela = htab->elf.srelplt;
4532 }
4533 else
4534 {
4535 splt = htab->elf.iplt;
4536 srela = htab->elf.irelplt;
4537 }
4538
4539 if (splt == NULL || srela == NULL)
4540 abort ();
4541
4542 /* Fill in the entry in the .rela.plt section. */
4543 if (htab->is_vxworks)
4544 {
4545 /* Work out the index of this PLT entry. */
4546 rela_index = ((h->plt.offset - htab->plt_header_size)
4547 / htab->plt_entry_size);
4548
4549 /* Calculate the offset of the associated .got.plt entry.
4550 The first three entries are reserved. */
4551 got_offset = (rela_index + 3) * 4;
4552
4553 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4554 rela_index, got_offset);
4555
4556
4557 /* On VxWorks, the relocation points to the .got.plt entry,
4558 not the .plt entry. */
4559 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4560 + htab->elf.sgotplt->output_offset
4561 + got_offset);
4562 rela.r_addend = 0;
4563 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4564 R_SPARC_JMP_SLOT);
4565 }
4566 else
4567 {
4568 bfd_boolean ifunc = FALSE;
4569
4570 /* Fill in the entry in the procedure linkage table. */
4571 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4572 h->plt.offset, splt->size,
4573 &r_offset);
4574
4575 if (h == NULL
4576 || h->dynindx == -1
4577 || ((bfd_link_executable (info)
4578 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4579 && h->def_regular
4580 && h->type == STT_GNU_IFUNC))
4581 {
4582 ifunc = TRUE;
4583 BFD_ASSERT (h == NULL
4584 || (h->type == STT_GNU_IFUNC
4585 && h->def_regular
4586 && (h->root.type == bfd_link_hash_defined
4587 || h->root.type == bfd_link_hash_defweak)));
4588 }
4589
4590 rela.r_offset = r_offset
4591 + (splt->output_section->vma + splt->output_offset);
4592 if (ABI_64_P (output_bfd)
4593 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
4594 {
4595 if (ifunc)
4596 {
4597 rela.r_addend = (h->root.u.def.section->output_section->vma
4598 + h->root.u.def.section->output_offset
4599 + h->root.u.def.value);
4600 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4601 R_SPARC_IRELATIVE);
4602 }
4603 else
4604 {
4605 rela.r_addend = (-(h->plt.offset + 4)
4606 - splt->output_section->vma
4607 - splt->output_offset);
4608 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4609 R_SPARC_JMP_SLOT);
4610 }
4611 }
4612 else
4613 {
4614 if (ifunc)
4615 {
4616 rela.r_addend = (h->root.u.def.section->output_section->vma
4617 + h->root.u.def.section->output_offset
4618 + h->root.u.def.value);
4619 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4620 R_SPARC_JMP_IREL);
4621 }
4622 else
4623 {
4624 rela.r_addend = 0;
4625 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4626 R_SPARC_JMP_SLOT);
4627 }
4628 }
4629 }
4630
4631 /* Adjust for the first 4 reserved elements in the .plt section
4632 when setting the offset in the .rela.plt section.
4633 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4634 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4635
4636 loc = srela->contents;
4637 loc += rela_index * bed->s->sizeof_rela;
4638 bed->s->swap_reloca_out (output_bfd, &rela, loc);
4639
4640 if (!local_undefweak
4641 && !h->def_regular)
4642 {
4643 /* Mark the symbol as undefined, rather than as defined in
4644 the .plt section. Leave the value alone. */
4645 sym->st_shndx = SHN_UNDEF;
4646 /* If the symbol is weak, we do need to clear the value.
4647 Otherwise, the PLT entry would provide a definition for
4648 the symbol even if the symbol wasn't defined anywhere,
4649 and so the symbol would never be NULL. */
4650 if (!h->ref_regular_nonweak)
4651 sym->st_value = 0;
4652 }
4653 }
4654
4655 /* Don't generate dynamic GOT relocation against undefined weak
4656 symbol in executable. */
4657 if (h->got.offset != (bfd_vma) -1
4658 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4659 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
4660 && !local_undefweak)
4661 {
4662 asection *sgot;
4663 asection *srela;
4664 Elf_Internal_Rela rela;
4665
4666 /* This symbol has an entry in the GOT. Set it up. */
4667
4668 sgot = htab->elf.sgot;
4669 srela = htab->elf.srelgot;
4670 BFD_ASSERT (sgot != NULL && srela != NULL);
4671
4672 rela.r_offset = (sgot->output_section->vma
4673 + sgot->output_offset
4674 + (h->got.offset &~ (bfd_vma) 1));
4675
4676 /* If this is a -Bsymbolic link, and the symbol is defined
4677 locally, we just want to emit a RELATIVE reloc. Likewise if
4678 the symbol was forced to be local because of a version file.
4679 The entry in the global offset table will already have been
4680 initialized in the relocate_section function. */
4681 if (! bfd_link_pic (info)
4682 && h->type == STT_GNU_IFUNC
4683 && h->def_regular)
4684 {
4685 asection *plt;
4686
4687 /* We load the GOT entry with the PLT entry. */
4688 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4689 SPARC_ELF_PUT_WORD (htab, output_bfd,
4690 (plt->output_section->vma
4691 + plt->output_offset + h->plt.offset),
4692 htab->elf.sgot->contents
4693 + (h->got.offset & ~(bfd_vma) 1));
4694 return TRUE;
4695 }
4696 else if (bfd_link_pic (info)
4697 && SYMBOL_REFERENCES_LOCAL (info, h))
4698 {
4699 asection *sec = h->root.u.def.section;
4700 if (h->type == STT_GNU_IFUNC)
4701 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4702 else
4703 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
4704 rela.r_addend = (h->root.u.def.value
4705 + sec->output_section->vma
4706 + sec->output_offset);
4707 }
4708 else
4709 {
4710 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4711 rela.r_addend = 0;
4712 }
4713
4714 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4715 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4716 sparc_elf_append_rela (output_bfd, srela, &rela);
4717 }
4718
4719 if (h->needs_copy)
4720 {
4721 asection *s;
4722 Elf_Internal_Rela rela;
4723
4724 /* This symbols needs a copy reloc. Set it up. */
4725 BFD_ASSERT (h->dynindx != -1);
4726
4727 rela.r_offset = (h->root.u.def.value
4728 + h->root.u.def.section->output_section->vma
4729 + h->root.u.def.section->output_offset);
4730 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4731 rela.r_addend = 0;
4732 if (h->root.u.def.section == htab->elf.sdynrelro)
4733 s = htab->elf.sreldynrelro;
4734 else
4735 s = htab->elf.srelbss;
4736 sparc_elf_append_rela (output_bfd, s, &rela);
4737 }
4738
4739 /* Mark some specially defined symbols as absolute. On VxWorks,
4740 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4741 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
4742 if (sym != NULL
4743 && (h == htab->elf.hdynamic
4744 || (!htab->is_vxworks
4745 && (h == htab->elf.hgot || h == htab->elf.hplt))))
4746 sym->st_shndx = SHN_ABS;
4747
4748 return TRUE;
4749 }
4750
4751 /* Finish up the dynamic sections. */
4752
4753 static bfd_boolean
4754 sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4755 bfd *dynobj, asection *sdyn,
4756 asection *splt ATTRIBUTE_UNUSED)
4757 {
4758 struct _bfd_sparc_elf_link_hash_table *htab;
4759 const struct elf_backend_data *bed;
4760 bfd_byte *dyncon, *dynconend;
4761 size_t dynsize;
4762 int stt_regidx = -1;
4763 bfd_boolean abi_64_p;
4764
4765 htab = _bfd_sparc_elf_hash_table (info);
4766 BFD_ASSERT (htab != NULL);
4767 bed = get_elf_backend_data (output_bfd);
4768 dynsize = bed->s->sizeof_dyn;
4769 dynconend = sdyn->contents + sdyn->size;
4770 abi_64_p = ABI_64_P (output_bfd);
4771 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4772 {
4773 Elf_Internal_Dyn dyn;
4774 bfd_boolean size;
4775
4776 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4777
4778 if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
4779 {
4780 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4781 not to the start of the PLT. */
4782 if (htab->elf.sgotplt)
4783 {
4784 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4785 + htab->elf.sgotplt->output_offset);
4786 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4787 }
4788 }
4789 else if (htab->is_vxworks
4790 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4791 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4792 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4793 {
4794 if (stt_regidx == -1)
4795 {
4796 stt_regidx =
4797 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4798 if (stt_regidx == -1)
4799 return FALSE;
4800 }
4801 dyn.d_un.d_val = stt_regidx++;
4802 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4803 }
4804 else
4805 {
4806 asection *s;
4807
4808 switch (dyn.d_tag)
4809 {
4810 case DT_PLTGOT:
4811 s = htab->elf.splt;
4812 size = FALSE;
4813 break;
4814 case DT_PLTRELSZ:
4815 s = htab->elf.srelplt;
4816 size = TRUE;
4817 break;
4818 case DT_JMPREL:
4819 s = htab->elf.srelplt;
4820 size = FALSE;
4821 break;
4822 default:
4823 continue;
4824 }
4825
4826 if (s == NULL)
4827 dyn.d_un.d_val = 0;
4828 else
4829 {
4830 if (!size)
4831 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4832 else
4833 dyn.d_un.d_val = s->size;
4834 }
4835 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4836 }
4837 }
4838 return TRUE;
4839 }
4840
4841 /* Install the first PLT entry in a VxWorks executable and make sure that
4842 .rela.plt.unloaded relocations have the correct symbol indexes. */
4843
4844 static void
4845 sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4846 {
4847 struct _bfd_sparc_elf_link_hash_table *htab;
4848 Elf_Internal_Rela rela;
4849 bfd_vma got_base;
4850 bfd_byte *loc;
4851
4852 htab = _bfd_sparc_elf_hash_table (info);
4853 BFD_ASSERT (htab != NULL);
4854
4855 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4856 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4857 + htab->elf.hgot->root.u.def.section->output_offset
4858 + htab->elf.hgot->root.u.def.value);
4859
4860 /* Install the initial PLT entry. */
4861 bfd_put_32 (output_bfd,
4862 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
4863 htab->elf.splt->contents);
4864 bfd_put_32 (output_bfd,
4865 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
4866 htab->elf.splt->contents + 4);
4867 bfd_put_32 (output_bfd,
4868 sparc_vxworks_exec_plt0_entry[2],
4869 htab->elf.splt->contents + 8);
4870 bfd_put_32 (output_bfd,
4871 sparc_vxworks_exec_plt0_entry[3],
4872 htab->elf.splt->contents + 12);
4873 bfd_put_32 (output_bfd,
4874 sparc_vxworks_exec_plt0_entry[4],
4875 htab->elf.splt->contents + 16);
4876
4877 loc = htab->srelplt2->contents;
4878
4879 /* Add an unloaded relocation for the initial entry's "sethi". */
4880 rela.r_offset = (htab->elf.splt->output_section->vma
4881 + htab->elf.splt->output_offset);
4882 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4883 rela.r_addend = 8;
4884 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4885 loc += sizeof (Elf32_External_Rela);
4886
4887 /* Likewise the following "or". */
4888 rela.r_offset += 4;
4889 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4890 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4891 loc += sizeof (Elf32_External_Rela);
4892
4893 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4894 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4895 in which symbols were output. */
4896 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4897 {
4898 Elf_Internal_Rela rel;
4899
4900 /* The entry's initial "sethi" (against _G_O_T_). */
4901 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4902 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4903 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4904 loc += sizeof (Elf32_External_Rela);
4905
4906 /* The following "or" (also against _G_O_T_). */
4907 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4908 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4909 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4910 loc += sizeof (Elf32_External_Rela);
4911
4912 /* The .got.plt entry (against _P_L_T_). */
4913 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4914 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4915 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4916 loc += sizeof (Elf32_External_Rela);
4917 }
4918 }
4919
4920 /* Install the first PLT entry in a VxWorks shared object. */
4921
4922 static void
4923 sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4924 {
4925 struct _bfd_sparc_elf_link_hash_table *htab;
4926 unsigned int i;
4927
4928 htab = _bfd_sparc_elf_hash_table (info);
4929 BFD_ASSERT (htab != NULL);
4930
4931 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4932 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
4933 htab->elf.splt->contents + i * 4);
4934 }
4935
4936 /* Finish up local dynamic symbol handling. We set the contents of
4937 various dynamic sections here. */
4938
4939 static bfd_boolean
4940 finish_local_dynamic_symbol (void **slot, void *inf)
4941 {
4942 struct elf_link_hash_entry *h
4943 = (struct elf_link_hash_entry *) *slot;
4944 struct bfd_link_info *info
4945 = (struct bfd_link_info *) inf;
4946
4947 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4948 h, NULL);
4949 }
4950
4951 /* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4952 here since undefined weak symbol may not be dynamic and may not be
4953 called for _bfd_sparc_elf_finish_dynamic_symbol. */
4954
4955 static bfd_boolean
4956 pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
4957 void *inf)
4958 {
4959 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4960 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4961
4962 if (h->root.type != bfd_link_hash_undefweak
4963 || h->dynindx != -1)
4964 return TRUE;
4965
4966 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4967 h, NULL);
4968 }
4969
4970 bfd_boolean
4971 _bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4972 {
4973 bfd *dynobj;
4974 asection *sdyn;
4975 struct _bfd_sparc_elf_link_hash_table *htab;
4976
4977 htab = _bfd_sparc_elf_hash_table (info);
4978 BFD_ASSERT (htab != NULL);
4979 dynobj = htab->elf.dynobj;
4980
4981 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4982
4983 if (elf_hash_table (info)->dynamic_sections_created)
4984 {
4985 asection *splt;
4986
4987 splt = htab->elf.splt;
4988 BFD_ASSERT (splt != NULL && sdyn != NULL);
4989
4990 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4991 return FALSE;
4992
4993 /* Initialize the contents of the .plt section. */
4994 if (splt->size > 0)
4995 {
4996 if (htab->is_vxworks)
4997 {
4998 if (bfd_link_pic (info))
4999 sparc_vxworks_finish_shared_plt (output_bfd, info);
5000 else
5001 sparc_vxworks_finish_exec_plt (output_bfd, info);
5002 }
5003 else
5004 {
5005 memset (splt->contents, 0, htab->plt_header_size);
5006 if (!ABI_64_P (output_bfd))
5007 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
5008 splt->contents + splt->size - 4);
5009 }
5010 }
5011
5012 if (elf_section_data (splt->output_section) != NULL)
5013 elf_section_data (splt->output_section)->this_hdr.sh_entsize
5014 = ((htab->is_vxworks || !ABI_64_P (output_bfd))
5015 ? 0 : htab->plt_entry_size);
5016 }
5017
5018 /* Set the first entry in the global offset table to the address of
5019 the dynamic section. */
5020 if (htab->elf.sgot && htab->elf.sgot->size > 0)
5021 {
5022 bfd_vma val = (sdyn ?
5023 sdyn->output_section->vma + sdyn->output_offset :
5024 0);
5025
5026 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
5027 }
5028
5029 if (htab->elf.sgot)
5030 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
5031 SPARC_ELF_WORD_BYTES (htab);
5032
5033 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
5034 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
5035
5036 /* Fill PLT entries for undefined weak symbols in PIE. */
5037 if (bfd_link_pie (info))
5038 bfd_hash_traverse (&info->hash->table,
5039 pie_finish_undefweak_symbol,
5040 info);
5041 return TRUE;
5042 }
5043
5044 \f
5045 /* Set the right machine number for a SPARC ELF file. */
5046
5047 bfd_boolean
5048 _bfd_sparc_elf_object_p (bfd *abfd)
5049 {
5050 obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
5051 obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
5052 obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
5053
5054 unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
5055 unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
5056 | ELF_SPARC_HWCAP_VIS3
5057 | ELF_SPARC_HWCAP_HPC);
5058 unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
5059 | ELF_SPARC_HWCAP_DES
5060 | ELF_SPARC_HWCAP_KASUMI
5061 | ELF_SPARC_HWCAP_CAMELLIA
5062 | ELF_SPARC_HWCAP_MD5
5063 | ELF_SPARC_HWCAP_SHA1
5064 | ELF_SPARC_HWCAP_SHA256
5065 | ELF_SPARC_HWCAP_SHA512
5066 | ELF_SPARC_HWCAP_MPMUL
5067 | ELF_SPARC_HWCAP_MONT
5068 | ELF_SPARC_HWCAP_CRC32C
5069 | ELF_SPARC_HWCAP_CBCOND
5070 | ELF_SPARC_HWCAP_PAUSE);
5071 unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
5072 | ELF_SPARC_HWCAP_IMA);
5073 unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
5074 | ELF_SPARC_HWCAP2_MWAIT
5075 | ELF_SPARC_HWCAP2_XMPMUL
5076 | ELF_SPARC_HWCAP2_XMONT);
5077 unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6
5078 | ELF_SPARC_HWCAP2_ONADDSUB
5079 | ELF_SPARC_HWCAP2_ONMUL
5080 | ELF_SPARC_HWCAP2_ONDIV
5081 | ELF_SPARC_HWCAP2_DICTUNP
5082 | ELF_SPARC_HWCAP2_FPCMPSHL
5083 | ELF_SPARC_HWCAP2_RLE
5084 | ELF_SPARC_HWCAP2_SHA3);
5085
5086 if (ABI_64_P (abfd))
5087 {
5088 unsigned long mach = bfd_mach_sparc_v9;
5089
5090 if (hwcaps2->i & m8_hwcaps2_mask)
5091 mach = bfd_mach_sparc_v9m8;
5092 else if (hwcaps2->i & v9m_hwcaps2_mask)
5093 mach = bfd_mach_sparc_v9m;
5094 else if (hwcaps->i & v9v_hwcaps_mask)
5095 mach = bfd_mach_sparc_v9v;
5096 else if (hwcaps->i & v9e_hwcaps_mask)
5097 mach = bfd_mach_sparc_v9e;
5098 else if (hwcaps->i & v9d_hwcaps_mask)
5099 mach = bfd_mach_sparc_v9d;
5100 else if (hwcaps->i & v9c_hwcaps_mask)
5101 mach = bfd_mach_sparc_v9c;
5102 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
5103 mach = bfd_mach_sparc_v9b;
5104 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
5105 mach = bfd_mach_sparc_v9a;
5106 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
5107 }
5108 else
5109 {
5110 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
5111 {
5112 if (hwcaps2->i & m8_hwcaps2_mask)
5113 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5114 bfd_mach_sparc_v8plusm8);
5115 else if (hwcaps2->i & v9m_hwcaps2_mask)
5116 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5117 bfd_mach_sparc_v8plusm);
5118 else if (hwcaps->i & v9v_hwcaps_mask)
5119 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5120 bfd_mach_sparc_v8plusv);
5121 else if (hwcaps->i & v9e_hwcaps_mask)
5122 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5123 bfd_mach_sparc_v8pluse);
5124 else if (hwcaps->i & v9d_hwcaps_mask)
5125 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5126 bfd_mach_sparc_v8plusd);
5127 else if (hwcaps->i & v9c_hwcaps_mask)
5128 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5129 bfd_mach_sparc_v8plusc);
5130 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
5131 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5132 bfd_mach_sparc_v8plusb);
5133 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
5134 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5135 bfd_mach_sparc_v8plusa);
5136 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
5137 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5138 bfd_mach_sparc_v8plus);
5139 else
5140 return FALSE;
5141 }
5142 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
5143 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5144 bfd_mach_sparc_sparclite_le);
5145 else
5146 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
5147 }
5148 }
5149
5150 /* Return address for Ith PLT stub in section PLT, for relocation REL
5151 or (bfd_vma) -1 if it should not be included. */
5152
5153 bfd_vma
5154 _bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
5155 {
5156 if (ABI_64_P (plt->owner))
5157 {
5158 bfd_vma j;
5159
5160 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
5161 if (i < PLT64_LARGE_THRESHOLD)
5162 return plt->vma + i * PLT64_ENTRY_SIZE;
5163
5164 j = (i - PLT64_LARGE_THRESHOLD) % 160;
5165 i -= j;
5166 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
5167 }
5168 else
5169 return rel->address;
5170 }
5171
5172 /* Merge backend specific data from an object file to the output
5173 object file when linking. */
5174
5175 bfd_boolean
5176 _bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
5177 {
5178 bfd *obfd = info->output_bfd;
5179 obj_attribute *in_attr, *in_attrs;
5180 obj_attribute *out_attr, *out_attrs;
5181
5182 if (!elf_known_obj_attributes_proc (obfd)[0].i)
5183 {
5184 /* This is the first object. Copy the attributes. */
5185 _bfd_elf_copy_obj_attributes (ibfd, obfd);
5186
5187 /* Use the Tag_null value to indicate the attributes have been
5188 initialized. */
5189 elf_known_obj_attributes_proc (obfd)[0].i = 1;
5190
5191 return TRUE;
5192 }
5193
5194 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
5195 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
5196
5197 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
5198 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
5199
5200 out_attr->i |= in_attr->i;
5201 out_attr->type = 1;
5202
5203 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
5204 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
5205
5206 out_attr->i |= in_attr->i;
5207 out_attr->type = 1;
5208
5209 /* Merge Tag_compatibility attributes and any common GNU ones. */
5210 _bfd_elf_merge_object_attributes (ibfd, info);
5211
5212 return TRUE;
5213 }
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