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Rename non_ir_ref to non_ir_ref_regular
[deliverable/binutils-gdb.git] / bfd / elfxx-sparc.c
1 /* SPARC-specific support for ELF
2 Copyright (C) 2005-2017 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21
22 /* This file handles functionality common to the different SPARC ABI's. */
23
24 #include "sysdep.h"
25 #include "bfd.h"
26 #include "bfdlink.h"
27 #include "libbfd.h"
28 #include "libiberty.h"
29 #include "elf-bfd.h"
30 #include "elf/sparc.h"
31 #include "opcode/sparc.h"
32 #include "elfxx-sparc.h"
33 #include "elf-vxworks.h"
34 #include "objalloc.h"
35 #include "hashtab.h"
36
37 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
38 #define MINUS_ONE (~ (bfd_vma) 0)
39
40 #define ABI_64_P(abfd) \
41 (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
42
43 /* The relocation "howto" table. */
44
45 /* Utility for performing the standard initial work of an instruction
46 relocation.
47 *PRELOCATION will contain the relocated item.
48 *PINSN will contain the instruction from the input stream.
49 If the result is `bfd_reloc_other' the caller can continue with
50 performing the relocation. Otherwise it must stop and return the
51 value to its caller. */
52
53 static bfd_reloc_status_type
54 init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
55 void * data, asection *input_section, bfd *output_bfd,
56 bfd_vma *prelocation, bfd_vma *pinsn)
57 {
58 bfd_vma relocation;
59 reloc_howto_type *howto = reloc_entry->howto;
60
61 if (output_bfd != (bfd *) NULL
62 && (symbol->flags & BSF_SECTION_SYM) == 0
63 && (! howto->partial_inplace
64 || reloc_entry->addend == 0))
65 {
66 reloc_entry->address += input_section->output_offset;
67 return bfd_reloc_ok;
68 }
69
70 /* This works because partial_inplace is FALSE. */
71 if (output_bfd != NULL)
72 return bfd_reloc_continue;
73
74 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
75 return bfd_reloc_outofrange;
76
77 relocation = (symbol->value
78 + symbol->section->output_section->vma
79 + symbol->section->output_offset);
80 relocation += reloc_entry->addend;
81 if (howto->pc_relative)
82 {
83 relocation -= (input_section->output_section->vma
84 + input_section->output_offset);
85 relocation -= reloc_entry->address;
86 }
87
88 *prelocation = relocation;
89 *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
90 return bfd_reloc_other;
91 }
92
93 /* For unsupported relocs. */
94
95 static bfd_reloc_status_type
96 sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
97 arelent *reloc_entry ATTRIBUTE_UNUSED,
98 asymbol *symbol ATTRIBUTE_UNUSED,
99 void * data ATTRIBUTE_UNUSED,
100 asection *input_section ATTRIBUTE_UNUSED,
101 bfd *output_bfd ATTRIBUTE_UNUSED,
102 char **error_message ATTRIBUTE_UNUSED)
103 {
104 return bfd_reloc_notsupported;
105 }
106
107 /* Handle the WDISP16 reloc. */
108
109 static bfd_reloc_status_type
110 sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
111 void * data, asection *input_section, bfd *output_bfd,
112 char **error_message ATTRIBUTE_UNUSED)
113 {
114 bfd_vma relocation;
115 bfd_vma insn;
116 bfd_reloc_status_type status;
117
118 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
119 input_section, output_bfd, &relocation, &insn);
120 if (status != bfd_reloc_other)
121 return status;
122
123 insn &= ~ (bfd_vma) 0x303fff;
124 insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
125 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
126
127 if ((bfd_signed_vma) relocation < - 0x40000
128 || (bfd_signed_vma) relocation > 0x3ffff)
129 return bfd_reloc_overflow;
130 else
131 return bfd_reloc_ok;
132 }
133
134 /* Handle the WDISP10 reloc. */
135
136 static bfd_reloc_status_type
137 sparc_elf_wdisp10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
138 void * data, asection *input_section, bfd *output_bfd,
139 char **error_message ATTRIBUTE_UNUSED)
140 {
141 bfd_vma relocation;
142 bfd_vma insn;
143 bfd_reloc_status_type status;
144
145 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
146 input_section, output_bfd, &relocation, &insn);
147 if (status != bfd_reloc_other)
148 return status;
149
150 insn &= ~ (bfd_vma) 0x181fe0;
151 insn |= (((relocation >> 2) & 0x300) << 11)
152 | (((relocation >> 2) & 0xff) << 5);
153 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
154
155 if ((bfd_signed_vma) relocation < - 0x1000
156 || (bfd_signed_vma) relocation > 0xfff)
157 return bfd_reloc_overflow;
158 else
159 return bfd_reloc_ok;
160 }
161
162 /* Handle the HIX22 reloc. */
163
164 static bfd_reloc_status_type
165 sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
166 void * data, asection *input_section, bfd *output_bfd,
167 char **error_message ATTRIBUTE_UNUSED)
168 {
169 bfd_vma relocation;
170 bfd_vma insn;
171 bfd_reloc_status_type status;
172
173 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
174 input_section, output_bfd, &relocation, &insn);
175 if (status != bfd_reloc_other)
176 return status;
177
178 relocation ^= MINUS_ONE;
179 insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
180 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
181
182 if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
183 return bfd_reloc_overflow;
184 else
185 return bfd_reloc_ok;
186 }
187
188 /* Handle the LOX10 reloc. */
189
190 static bfd_reloc_status_type
191 sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
192 void * data, asection *input_section, bfd *output_bfd,
193 char **error_message ATTRIBUTE_UNUSED)
194 {
195 bfd_vma relocation;
196 bfd_vma insn;
197 bfd_reloc_status_type status;
198
199 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
200 input_section, output_bfd, &relocation, &insn);
201 if (status != bfd_reloc_other)
202 return status;
203
204 insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
205 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
206
207 return bfd_reloc_ok;
208 }
209
210 static reloc_howto_type _bfd_sparc_elf_howto_table[] =
211 {
212 HOWTO(R_SPARC_NONE, 0,3, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
213 HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
214 HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
215 HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
216 HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
217 HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
218 HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
219 HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
220 HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
221 HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
222 HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
223 HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
224 HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
225 HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
226 HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
227 HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
228 HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
229 HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
230 HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
231 HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
232 HOWTO(R_SPARC_GLOB_DAT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",FALSE,0,0x00000000,TRUE),
233 HOWTO(R_SPARC_JMP_SLOT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",FALSE,0,0x00000000,TRUE),
234 HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
235 HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
236 HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
237 HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
238 HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
239 HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
240 HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
241 HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
242 HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
243 HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
244 HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE),
245 HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE),
246 HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE),
247 HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE),
248 HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE),
249 HOWTO(R_SPARC_PC_HH22, 42,2,22,TRUE, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", FALSE,0,0x003fffff,TRUE),
250 HOWTO(R_SPARC_PC_HM10, 32,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", FALSE,0,0x000003ff,TRUE),
251 HOWTO(R_SPARC_PC_LM22, 10,2,22,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", FALSE,0,0x003fffff,TRUE),
252 HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
253 HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
254 HOWTO(R_SPARC_UNUSED_42, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",FALSE,0,0x00000000,TRUE),
255 HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
256 HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
257 HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
258 HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE),
259 HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE),
260 HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE),
261 HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE),
262 HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE),
263 HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE),
264 HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE),
265 HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE),
266 HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE),
267 HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
268 HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE),
269 HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE),
270 HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",FALSE,0,0x00000000,TRUE),
271 HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE),
272 HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE),
273 HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE),
274 HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",FALSE,0,0x00000000,TRUE),
275 HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE),
276 HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE),
277 HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE),
278 HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",FALSE,0,0x00000000,TRUE),
279 HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE),
280 HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE),
281 HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",FALSE,0,0x00000000,TRUE),
282 HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",FALSE,0,0x00000000,TRUE),
283 HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",FALSE,0,0x00000000,TRUE),
284 HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE),
285 HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE),
286 HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",FALSE,0,0x00000000,TRUE),
287 HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",FALSE,0,0x00000000,TRUE),
288 HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE),
289 HOWTO(R_SPARC_TLS_DTPOFF64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",FALSE,0,MINUS_ONE,TRUE),
290 HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE),
291 HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE),
292 HOWTO(R_SPARC_GOTDATA_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",FALSE,0,0x003fffff, FALSE),
293 HOWTO(R_SPARC_GOTDATA_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",FALSE,0,0x000003ff, FALSE),
294 HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",FALSE,0,0x003fffff, FALSE),
295 HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",FALSE,0,0x000003ff, FALSE),
296 HOWTO(R_SPARC_GOTDATA_OP,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOTDATA_OP",FALSE,0,0x00000000,TRUE),
297 HOWTO(R_SPARC_H34,12,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc,"R_SPARC_H34",FALSE,0,0x003fffff,FALSE),
298 HOWTO(R_SPARC_SIZE32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE32",FALSE,0,0xffffffff,TRUE),
299 HOWTO(R_SPARC_SIZE64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE64",FALSE,0,MINUS_ONE, TRUE),
300 HOWTO(R_SPARC_WDISP10,2,2,10,TRUE, 0,complain_overflow_signed,sparc_elf_wdisp10_reloc,"R_SPARC_WDISP10",FALSE,0,0x00000000,TRUE),
301 };
302 static reloc_howto_type sparc_jmp_irel_howto =
303 HOWTO(R_SPARC_JMP_IREL, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_IREL",FALSE,0,0x00000000,TRUE);
304 static reloc_howto_type sparc_irelative_howto =
305 HOWTO(R_SPARC_IRELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_IRELATIVE",FALSE,0,0x00000000,TRUE);
306 static reloc_howto_type sparc_vtinherit_howto =
307 HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE);
308 static reloc_howto_type sparc_vtentry_howto =
309 HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", FALSE,0,0, FALSE);
310 static reloc_howto_type sparc_rev32_howto =
311 HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE);
312
313 reloc_howto_type *
314 _bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
315 bfd_reloc_code_real_type code)
316 {
317 /* We explicitly handle each relocation type in the switch
318 instead of using a lookup table for efficiency. */
319 switch (code)
320 {
321 case BFD_RELOC_NONE:
322 return &_bfd_sparc_elf_howto_table[R_SPARC_NONE];
323
324 case BFD_RELOC_8:
325 return &_bfd_sparc_elf_howto_table[R_SPARC_8];
326
327 case BFD_RELOC_16:
328 return &_bfd_sparc_elf_howto_table[R_SPARC_16];
329
330 case BFD_RELOC_32:
331 return &_bfd_sparc_elf_howto_table[R_SPARC_32];
332
333 case BFD_RELOC_8_PCREL:
334 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP8];
335
336 case BFD_RELOC_16_PCREL:
337 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP16];
338
339 case BFD_RELOC_32_PCREL:
340 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP32];
341
342 case BFD_RELOC_32_PCREL_S2:
343 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP30];
344
345 case BFD_RELOC_SPARC_WDISP22:
346 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP22];
347
348 case BFD_RELOC_HI22:
349 return &_bfd_sparc_elf_howto_table[R_SPARC_HI22];
350
351 case BFD_RELOC_SPARC22:
352 return &_bfd_sparc_elf_howto_table[R_SPARC_22];
353
354 case BFD_RELOC_SPARC13:
355 return &_bfd_sparc_elf_howto_table[R_SPARC_13];
356
357 case BFD_RELOC_LO10:
358 return &_bfd_sparc_elf_howto_table[R_SPARC_LO10];
359
360 case BFD_RELOC_SPARC_GOT10:
361 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT10];
362
363 case BFD_RELOC_SPARC_GOT13:
364 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT13];
365
366 case BFD_RELOC_SPARC_GOT22:
367 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT22];
368
369 case BFD_RELOC_SPARC_PC10:
370 return &_bfd_sparc_elf_howto_table[R_SPARC_PC10];
371
372 case BFD_RELOC_SPARC_PC22:
373 return &_bfd_sparc_elf_howto_table[R_SPARC_PC22];
374
375 case BFD_RELOC_SPARC_WPLT30:
376 return &_bfd_sparc_elf_howto_table[R_SPARC_WPLT30];
377
378 case BFD_RELOC_SPARC_COPY:
379 return &_bfd_sparc_elf_howto_table[R_SPARC_COPY];
380
381 case BFD_RELOC_SPARC_GLOB_DAT:
382 return &_bfd_sparc_elf_howto_table[R_SPARC_GLOB_DAT];
383
384 case BFD_RELOC_SPARC_JMP_SLOT:
385 return &_bfd_sparc_elf_howto_table[R_SPARC_JMP_SLOT];
386
387 case BFD_RELOC_SPARC_RELATIVE:
388 return &_bfd_sparc_elf_howto_table[R_SPARC_RELATIVE];
389
390 case BFD_RELOC_SPARC_UA32:
391 return &_bfd_sparc_elf_howto_table[R_SPARC_UA32];
392
393 case BFD_RELOC_SPARC_PLT32:
394 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT32];
395
396 case BFD_RELOC_SPARC_10:
397 return &_bfd_sparc_elf_howto_table[R_SPARC_10];
398
399 case BFD_RELOC_SPARC_11:
400 return &_bfd_sparc_elf_howto_table[R_SPARC_11];
401
402 case BFD_RELOC_SPARC_64:
403 return &_bfd_sparc_elf_howto_table[R_SPARC_64];
404
405 case BFD_RELOC_SPARC_OLO10:
406 return &_bfd_sparc_elf_howto_table[R_SPARC_OLO10];
407
408 case BFD_RELOC_SPARC_HH22:
409 return &_bfd_sparc_elf_howto_table[R_SPARC_HH22];
410
411 case BFD_RELOC_SPARC_HM10:
412 return &_bfd_sparc_elf_howto_table[R_SPARC_HM10];
413
414 case BFD_RELOC_SPARC_LM22:
415 return &_bfd_sparc_elf_howto_table[R_SPARC_LM22];
416
417 case BFD_RELOC_SPARC_PC_HH22:
418 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HH22];
419
420 case BFD_RELOC_SPARC_PC_HM10:
421 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HM10];
422
423 case BFD_RELOC_SPARC_PC_LM22:
424 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_LM22];
425
426 case BFD_RELOC_SPARC_WDISP16:
427 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP16];
428
429 case BFD_RELOC_SPARC_WDISP19:
430 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP19];
431
432 case BFD_RELOC_SPARC_7:
433 return &_bfd_sparc_elf_howto_table[R_SPARC_7];
434
435 case BFD_RELOC_SPARC_5:
436 return &_bfd_sparc_elf_howto_table[R_SPARC_5];
437
438 case BFD_RELOC_SPARC_6:
439 return &_bfd_sparc_elf_howto_table[R_SPARC_6];
440
441 case BFD_RELOC_SPARC_DISP64:
442 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP64];
443
444 case BFD_RELOC_SPARC_PLT64:
445 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT64];
446
447 case BFD_RELOC_SPARC_HIX22:
448 return &_bfd_sparc_elf_howto_table[R_SPARC_HIX22];
449
450 case BFD_RELOC_SPARC_LOX10:
451 return &_bfd_sparc_elf_howto_table[R_SPARC_LOX10];
452
453 case BFD_RELOC_SPARC_H44:
454 return &_bfd_sparc_elf_howto_table[R_SPARC_H44];
455
456 case BFD_RELOC_SPARC_M44:
457 return &_bfd_sparc_elf_howto_table[R_SPARC_M44];
458
459 case BFD_RELOC_SPARC_L44:
460 return &_bfd_sparc_elf_howto_table[R_SPARC_L44];
461
462 case BFD_RELOC_SPARC_REGISTER:
463 return &_bfd_sparc_elf_howto_table[R_SPARC_REGISTER];
464
465 case BFD_RELOC_SPARC_UA64:
466 return &_bfd_sparc_elf_howto_table[R_SPARC_UA64];
467
468 case BFD_RELOC_SPARC_UA16:
469 return &_bfd_sparc_elf_howto_table[R_SPARC_UA16];
470
471 case BFD_RELOC_SPARC_TLS_GD_HI22:
472 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_HI22];
473
474 case BFD_RELOC_SPARC_TLS_GD_LO10:
475 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_LO10];
476
477 case BFD_RELOC_SPARC_TLS_GD_ADD:
478 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_ADD];
479
480 case BFD_RELOC_SPARC_TLS_GD_CALL:
481 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_CALL];
482
483 case BFD_RELOC_SPARC_TLS_LDM_HI22:
484 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_HI22];
485
486 case BFD_RELOC_SPARC_TLS_LDM_LO10:
487 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_LO10];
488
489 case BFD_RELOC_SPARC_TLS_LDM_ADD:
490 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_ADD];
491
492 case BFD_RELOC_SPARC_TLS_LDM_CALL:
493 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_CALL];
494
495 case BFD_RELOC_SPARC_TLS_LDO_HIX22:
496 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_HIX22];
497
498 case BFD_RELOC_SPARC_TLS_LDO_LOX10:
499 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_LOX10];
500
501 case BFD_RELOC_SPARC_TLS_LDO_ADD:
502 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_ADD];
503
504 case BFD_RELOC_SPARC_TLS_IE_HI22:
505 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_HI22];
506
507 case BFD_RELOC_SPARC_TLS_IE_LO10:
508 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LO10];
509
510 case BFD_RELOC_SPARC_TLS_IE_LD:
511 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LD];
512
513 case BFD_RELOC_SPARC_TLS_IE_LDX:
514 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LDX];
515
516 case BFD_RELOC_SPARC_TLS_IE_ADD:
517 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_ADD];
518
519 case BFD_RELOC_SPARC_TLS_LE_HIX22:
520 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_HIX22];
521
522 case BFD_RELOC_SPARC_TLS_LE_LOX10:
523 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_LOX10];
524
525 case BFD_RELOC_SPARC_TLS_DTPMOD32:
526 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD32];
527
528 case BFD_RELOC_SPARC_TLS_DTPMOD64:
529 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD64];
530
531 case BFD_RELOC_SPARC_TLS_DTPOFF32:
532 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF32];
533
534 case BFD_RELOC_SPARC_TLS_DTPOFF64:
535 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF64];
536
537 case BFD_RELOC_SPARC_TLS_TPOFF32:
538 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF32];
539
540 case BFD_RELOC_SPARC_TLS_TPOFF64:
541 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF64];
542
543 case BFD_RELOC_SPARC_GOTDATA_HIX22:
544 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_HIX22];
545
546 case BFD_RELOC_SPARC_GOTDATA_LOX10:
547 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_LOX10];
548
549 case BFD_RELOC_SPARC_GOTDATA_OP_HIX22:
550 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_HIX22];
551
552 case BFD_RELOC_SPARC_GOTDATA_OP_LOX10:
553 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_LOX10];
554
555 case BFD_RELOC_SPARC_GOTDATA_OP:
556 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP];
557
558 case BFD_RELOC_SPARC_H34:
559 return &_bfd_sparc_elf_howto_table[R_SPARC_H34];
560
561 case BFD_RELOC_SPARC_SIZE32:
562 return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE32];
563
564 case BFD_RELOC_SPARC_SIZE64:
565 return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE64];
566
567 case BFD_RELOC_SPARC_WDISP10:
568 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP10];
569
570 case BFD_RELOC_SPARC_JMP_IREL:
571 return &sparc_jmp_irel_howto;
572
573 case BFD_RELOC_SPARC_IRELATIVE:
574 return &sparc_irelative_howto;
575
576 case BFD_RELOC_VTABLE_INHERIT:
577 return &sparc_vtinherit_howto;
578
579 case BFD_RELOC_VTABLE_ENTRY:
580 return &sparc_vtentry_howto;
581
582 case BFD_RELOC_SPARC_REV32:
583 return &sparc_rev32_howto;
584
585 default:
586 break;
587 }
588 bfd_set_error (bfd_error_bad_value);
589 return NULL;
590 }
591
592 reloc_howto_type *
593 _bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
594 const char *r_name)
595 {
596 unsigned int i;
597
598 for (i = 0;
599 i < (sizeof (_bfd_sparc_elf_howto_table)
600 / sizeof (_bfd_sparc_elf_howto_table[0]));
601 i++)
602 if (_bfd_sparc_elf_howto_table[i].name != NULL
603 && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
604 return &_bfd_sparc_elf_howto_table[i];
605
606 if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
607 return &sparc_vtinherit_howto;
608 if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
609 return &sparc_vtentry_howto;
610 if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
611 return &sparc_rev32_howto;
612
613 return NULL;
614 }
615
616 reloc_howto_type *
617 _bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type)
618 {
619 switch (r_type)
620 {
621 case R_SPARC_JMP_IREL:
622 return &sparc_jmp_irel_howto;
623
624 case R_SPARC_IRELATIVE:
625 return &sparc_irelative_howto;
626
627 case R_SPARC_GNU_VTINHERIT:
628 return &sparc_vtinherit_howto;
629
630 case R_SPARC_GNU_VTENTRY:
631 return &sparc_vtentry_howto;
632
633 case R_SPARC_REV32:
634 return &sparc_rev32_howto;
635
636 default:
637 if (r_type >= (unsigned int) R_SPARC_max_std)
638 {
639 _bfd_error_handler (_("invalid relocation type %d"), (int) r_type);
640 r_type = R_SPARC_NONE;
641 }
642 return &_bfd_sparc_elf_howto_table[r_type];
643 }
644 }
645
646 /* Both 32-bit and 64-bit sparc encode this in an identical manner,
647 so just take advantage of that. */
648 #define SPARC_ELF_R_TYPE(r_info) \
649 ((r_info) & 0xff)
650
651 void
652 _bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
653 Elf_Internal_Rela *dst)
654 {
655 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
656
657 cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type);
658 }
659 \f
660
661 /* The nop opcode we use. */
662 #define SPARC_NOP 0x01000000
663
664 #define SPARC_INSN_BYTES 4
665
666 /* The SPARC linker needs to keep track of the number of relocs that it
667 decides to copy as dynamic relocs in check_relocs for each symbol.
668 This is so that it can later discard them if they are found to be
669 unnecessary. We store the information in a field extending the
670 regular ELF linker hash table. */
671
672 struct _bfd_sparc_elf_dyn_relocs
673 {
674 struct _bfd_sparc_elf_dyn_relocs *next;
675
676 /* The input section of the reloc. */
677 asection *sec;
678
679 /* Total number of relocs copied for the input section. */
680 bfd_size_type count;
681
682 /* Number of pc-relative relocs copied for the input section. */
683 bfd_size_type pc_count;
684 };
685
686 /* Is an undefined weak symbol resolved to 0 ?
687 Reference to an undefined weak symbol is resolved to 0 when
688 building an executable if it isn't dynamic and
689 1. Has non-GOT/non-PLT relocations in text section.
690 Or
691 2. Has no GOT/PLT relocation. */
692 #define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
693 ((EH)->elf.root.type == bfd_link_hash_undefweak \
694 && bfd_link_executable (INFO) \
695 && (_bfd_sparc_elf_hash_table (INFO)->interp == NULL \
696 || !(EH)->has_got_reloc \
697 || (EH)->has_non_got_reloc \
698 || !(INFO)->dynamic_undefined_weak))
699
700 /* SPARC ELF linker hash entry. */
701
702 struct _bfd_sparc_elf_link_hash_entry
703 {
704 struct elf_link_hash_entry elf;
705
706 /* Track dynamic relocs copied for this symbol. */
707 struct _bfd_sparc_elf_dyn_relocs *dyn_relocs;
708
709 #define GOT_UNKNOWN 0
710 #define GOT_NORMAL 1
711 #define GOT_TLS_GD 2
712 #define GOT_TLS_IE 3
713 unsigned char tls_type;
714
715 /* Symbol has GOT or PLT relocations. */
716 unsigned int has_got_reloc : 1;
717
718 /* Symbol has non-GOT/non-PLT relocations in text sections. */
719 unsigned int has_non_got_reloc : 1;
720
721 };
722
723 #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
724
725 struct _bfd_sparc_elf_obj_tdata
726 {
727 struct elf_obj_tdata root;
728
729 /* tls_type for each local got entry. */
730 char *local_got_tls_type;
731
732 /* TRUE if TLS GD relocs has been seen for this object. */
733 bfd_boolean has_tlsgd;
734 };
735
736 #define _bfd_sparc_elf_tdata(abfd) \
737 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
738
739 #define _bfd_sparc_elf_local_got_tls_type(abfd) \
740 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
741
742 #define is_sparc_elf(bfd) \
743 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
744 && elf_tdata (bfd) != NULL \
745 && elf_object_id (bfd) == SPARC_ELF_DATA)
746
747 bfd_boolean
748 _bfd_sparc_elf_mkobject (bfd *abfd)
749 {
750 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
751 SPARC_ELF_DATA);
752 }
753
754 static void
755 sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
756 {
757 bfd_put_32 (abfd, val, ptr);
758 }
759
760 static void
761 sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
762 {
763 bfd_put_64 (abfd, val, ptr);
764 }
765
766 static void
767 sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
768 {
769 const struct elf_backend_data *bed;
770 bfd_byte *loc;
771
772 bed = get_elf_backend_data (abfd);
773 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
774 bed->s->swap_reloca_out (abfd, rel, loc);
775 }
776
777 static bfd_vma
778 sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
779 bfd_vma rel_index ATTRIBUTE_UNUSED,
780 bfd_vma type ATTRIBUTE_UNUSED)
781 {
782 return ELF64_R_INFO (rel_index,
783 (in_rel ?
784 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
785 type) : type));
786 }
787
788 static bfd_vma
789 sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
790 bfd_vma rel_index, bfd_vma type)
791 {
792 return ELF32_R_INFO (rel_index, type);
793 }
794
795 static bfd_vma
796 sparc_elf_r_symndx_64 (bfd_vma r_info)
797 {
798 bfd_vma r_symndx = ELF32_R_SYM (r_info);
799 return (r_symndx >> 24);
800 }
801
802 static bfd_vma
803 sparc_elf_r_symndx_32 (bfd_vma r_info)
804 {
805 return ELF32_R_SYM (r_info);
806 }
807
808 /* PLT/GOT stuff */
809
810 #define PLT32_ENTRY_SIZE 12
811 #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
812
813 /* The first four entries in a 32-bit procedure linkage table are reserved,
814 and the initial contents are unimportant (we zero them out).
815 Subsequent entries look like this. See the SVR4 ABI SPARC
816 supplement to see how this works. */
817
818 /* sethi %hi(.-.plt0),%g1. We fill in the address later. */
819 #define PLT32_ENTRY_WORD0 0x03000000
820 /* b,a .plt0. We fill in the offset later. */
821 #define PLT32_ENTRY_WORD1 0x30800000
822 /* nop. */
823 #define PLT32_ENTRY_WORD2 SPARC_NOP
824
825 static int
826 sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
827 bfd_vma max ATTRIBUTE_UNUSED,
828 bfd_vma *r_offset)
829 {
830 bfd_put_32 (output_bfd,
831 PLT32_ENTRY_WORD0 + offset,
832 splt->contents + offset);
833 bfd_put_32 (output_bfd,
834 (PLT32_ENTRY_WORD1
835 + (((- (offset + 4)) >> 2) & 0x3fffff)),
836 splt->contents + offset + 4);
837 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
838 splt->contents + offset + 8);
839
840 *r_offset = offset;
841
842 return offset / PLT32_ENTRY_SIZE - 4;
843 }
844
845 /* Both the headers and the entries are icache aligned. */
846 #define PLT64_ENTRY_SIZE 32
847 #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
848 #define PLT64_LARGE_THRESHOLD 32768
849
850 static int
851 sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
852 bfd_vma max, bfd_vma *r_offset)
853 {
854 unsigned char *entry = splt->contents + offset;
855 const unsigned int nop = SPARC_NOP;
856 int plt_index;
857
858 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
859 {
860 unsigned int sethi, ba;
861
862 *r_offset = offset;
863
864 plt_index = (offset / PLT64_ENTRY_SIZE);
865
866 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
867 ba = 0x30680000
868 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
869
870 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
871 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
872 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
873 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
874 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
875 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
876 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
877 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
878 }
879 else
880 {
881 unsigned char *ptr;
882 unsigned int ldx;
883 int block, last_block, ofs, last_ofs, chunks_this_block;
884 const int insn_chunk_size = (6 * 4);
885 const int ptr_chunk_size = (1 * 8);
886 const int entries_per_block = 160;
887 const int block_size = entries_per_block * (insn_chunk_size
888 + ptr_chunk_size);
889
890 /* Entries 32768 and higher are grouped into blocks of 160.
891 The blocks are further subdivided into 160 sequences of
892 6 instructions and 160 pointers. If a block does not require
893 the full 160 entries, let's say it requires N, then there
894 will be N sequences of 6 instructions and N pointers. */
895
896 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
897 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
898
899 block = offset / block_size;
900 last_block = max / block_size;
901 if (block != last_block)
902 {
903 chunks_this_block = 160;
904 }
905 else
906 {
907 last_ofs = max % block_size;
908 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
909 }
910
911 ofs = offset % block_size;
912
913 plt_index = (PLT64_LARGE_THRESHOLD +
914 (block * 160) +
915 (ofs / insn_chunk_size));
916
917 ptr = splt->contents
918 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
919 + (block * block_size)
920 + (chunks_this_block * insn_chunk_size)
921 + (ofs / insn_chunk_size) * ptr_chunk_size;
922
923 *r_offset = (bfd_vma) (ptr - splt->contents);
924
925 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
926
927 /* mov %o7,%g5
928 call .+8
929 nop
930 ldx [%o7+P],%g1
931 jmpl %o7+%g1,%g1
932 mov %g5,%o7 */
933 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
934 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
935 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
936 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
937 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
938 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
939
940 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
941 }
942
943 return plt_index - 4;
944 }
945
946 /* The format of the first PLT entry in a VxWorks executable. */
947 static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
948 {
949 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
950 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
951 0xc4008000, /* ld [ %g2 ], %g2 */
952 0x81c08000, /* jmp %g2 */
953 0x01000000 /* nop */
954 };
955
956 /* The format of subsequent PLT entries. */
957 static const bfd_vma sparc_vxworks_exec_plt_entry[] =
958 {
959 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
960 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
961 0xc2004000, /* ld [ %g1 ], %g1 */
962 0x81c04000, /* jmp %g1 */
963 0x01000000, /* nop */
964 0x03000000, /* sethi %hi(f@pltindex), %g1 */
965 0x10800000, /* b _PLT_resolve */
966 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
967 };
968
969 /* The format of the first PLT entry in a VxWorks shared object. */
970 static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
971 {
972 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
973 0x81c08000, /* jmp %g2 */
974 0x01000000 /* nop */
975 };
976
977 /* The format of subsequent PLT entries. */
978 static const bfd_vma sparc_vxworks_shared_plt_entry[] =
979 {
980 0x03000000, /* sethi %hi(f@got), %g1 */
981 0x82106000, /* or %g1, %lo(f@got), %g1 */
982 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
983 0x81c04000, /* jmp %g1 */
984 0x01000000, /* nop */
985 0x03000000, /* sethi %hi(f@pltindex), %g1 */
986 0x10800000, /* b _PLT_resolve */
987 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
988 };
989
990 #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
991 htab->put_word(bfd, val, ptr)
992
993 #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
994 htab->r_info(in_rel, index, type)
995
996 #define SPARC_ELF_R_SYMNDX(htab, r_info) \
997 htab->r_symndx(r_info)
998
999 #define SPARC_ELF_WORD_BYTES(htab) \
1000 htab->bytes_per_word
1001
1002 #define SPARC_ELF_RELA_BYTES(htab) \
1003 htab->bytes_per_rela
1004
1005 #define SPARC_ELF_DTPOFF_RELOC(htab) \
1006 htab->dtpoff_reloc
1007
1008 #define SPARC_ELF_DTPMOD_RELOC(htab) \
1009 htab->dtpmod_reloc
1010
1011 #define SPARC_ELF_TPOFF_RELOC(htab) \
1012 htab->tpoff_reloc
1013
1014 #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
1015 htab->build_plt_entry (obfd, splt, off, max, r_off)
1016
1017 /* Create an entry in an SPARC ELF linker hash table. */
1018
1019 static struct bfd_hash_entry *
1020 link_hash_newfunc (struct bfd_hash_entry *entry,
1021 struct bfd_hash_table *table, const char *string)
1022 {
1023 /* Allocate the structure if it has not already been allocated by a
1024 subclass. */
1025 if (entry == NULL)
1026 {
1027 entry = bfd_hash_allocate (table,
1028 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1029 if (entry == NULL)
1030 return entry;
1031 }
1032
1033 /* Call the allocation method of the superclass. */
1034 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1035 if (entry != NULL)
1036 {
1037 struct _bfd_sparc_elf_link_hash_entry *eh;
1038
1039 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
1040 eh->dyn_relocs = NULL;
1041 eh->tls_type = GOT_UNKNOWN;
1042 eh->has_got_reloc = 0;
1043 eh->has_non_got_reloc = 0;
1044 }
1045
1046 return entry;
1047 }
1048
1049 /* The name of the dynamic interpreter. This is put in the .interp
1050 section. */
1051
1052 #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1053 #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1054
1055 /* Compute a hash of a local hash entry. We use elf_link_hash_entry
1056 for local symbol so that we can handle local STT_GNU_IFUNC symbols
1057 as global symbol. We reuse indx and dynstr_index for local symbol
1058 hash since they aren't used by global symbols in this backend. */
1059
1060 static hashval_t
1061 elf_sparc_local_htab_hash (const void *ptr)
1062 {
1063 struct elf_link_hash_entry *h
1064 = (struct elf_link_hash_entry *) ptr;
1065 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1066 }
1067
1068 /* Compare local hash entries. */
1069
1070 static int
1071 elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1072 {
1073 struct elf_link_hash_entry *h1
1074 = (struct elf_link_hash_entry *) ptr1;
1075 struct elf_link_hash_entry *h2
1076 = (struct elf_link_hash_entry *) ptr2;
1077
1078 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1079 }
1080
1081 /* Find and/or create a hash entry for local symbol. */
1082
1083 static struct elf_link_hash_entry *
1084 elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1085 bfd *abfd, const Elf_Internal_Rela *rel,
1086 bfd_boolean create)
1087 {
1088 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1089 asection *sec = abfd->sections;
1090 unsigned long r_symndx;
1091 hashval_t h;
1092 void **slot;
1093
1094 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1095 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1096
1097 e.elf.indx = sec->id;
1098 e.elf.dynstr_index = r_symndx;
1099 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1100 create ? INSERT : NO_INSERT);
1101
1102 if (!slot)
1103 return NULL;
1104
1105 if (*slot)
1106 {
1107 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1108 return &ret->elf;
1109 }
1110
1111 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1112 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1113 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1114 if (ret)
1115 {
1116 memset (ret, 0, sizeof (*ret));
1117 ret->elf.indx = sec->id;
1118 ret->elf.dynstr_index = r_symndx;
1119 ret->elf.dynindx = -1;
1120 ret->elf.plt.offset = (bfd_vma) -1;
1121 ret->elf.got.offset = (bfd_vma) -1;
1122 *slot = ret;
1123 }
1124 return &ret->elf;
1125 }
1126
1127 /* Destroy a SPARC ELF linker hash table. */
1128
1129 static void
1130 _bfd_sparc_elf_link_hash_table_free (bfd *obfd)
1131 {
1132 struct _bfd_sparc_elf_link_hash_table *htab
1133 = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
1134
1135 if (htab->loc_hash_table)
1136 htab_delete (htab->loc_hash_table);
1137 if (htab->loc_hash_memory)
1138 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
1139 _bfd_elf_link_hash_table_free (obfd);
1140 }
1141
1142 /* Create a SPARC ELF linker hash table. */
1143
1144 struct bfd_link_hash_table *
1145 _bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1146 {
1147 struct _bfd_sparc_elf_link_hash_table *ret;
1148 bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1149
1150 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1151 if (ret == NULL)
1152 return NULL;
1153
1154 if (ABI_64_P (abfd))
1155 {
1156 ret->put_word = sparc_put_word_64;
1157 ret->r_info = sparc_elf_r_info_64;
1158 ret->r_symndx = sparc_elf_r_symndx_64;
1159 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1160 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1161 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1162 ret->word_align_power = 3;
1163 ret->align_power_max = 4;
1164 ret->bytes_per_word = 8;
1165 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1166 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1167 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
1168
1169 ret->build_plt_entry = sparc64_plt_entry_build;
1170 ret->plt_header_size = PLT64_HEADER_SIZE;
1171 ret->plt_entry_size = PLT64_ENTRY_SIZE;
1172 }
1173 else
1174 {
1175 ret->put_word = sparc_put_word_32;
1176 ret->r_info = sparc_elf_r_info_32;
1177 ret->r_symndx = sparc_elf_r_symndx_32;
1178 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1179 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1180 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1181 ret->word_align_power = 2;
1182 ret->align_power_max = 3;
1183 ret->bytes_per_word = 4;
1184 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1185 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1186 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
1187
1188 ret->build_plt_entry = sparc32_plt_entry_build;
1189 ret->plt_header_size = PLT32_HEADER_SIZE;
1190 ret->plt_entry_size = PLT32_ENTRY_SIZE;
1191 }
1192
1193 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1194 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1195 SPARC_ELF_DATA))
1196 {
1197 free (ret);
1198 return NULL;
1199 }
1200
1201 ret->loc_hash_table = htab_try_create (1024,
1202 elf_sparc_local_htab_hash,
1203 elf_sparc_local_htab_eq,
1204 NULL);
1205 ret->loc_hash_memory = objalloc_create ();
1206 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1207 {
1208 _bfd_sparc_elf_link_hash_table_free (abfd);
1209 return NULL;
1210 }
1211 ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
1212
1213 return &ret->elf.root;
1214 }
1215
1216 /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1217 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1218 hash table. */
1219
1220 bfd_boolean
1221 _bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1222 struct bfd_link_info *info)
1223 {
1224 struct _bfd_sparc_elf_link_hash_table *htab;
1225
1226 htab = _bfd_sparc_elf_hash_table (info);
1227 BFD_ASSERT (htab != NULL);
1228
1229 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1230 return FALSE;
1231
1232 if (htab->is_vxworks)
1233 {
1234 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1235 return FALSE;
1236 if (bfd_link_pic (info))
1237 {
1238 htab->plt_header_size
1239 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1240 htab->plt_entry_size
1241 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1242 }
1243 else
1244 {
1245 htab->plt_header_size
1246 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1247 htab->plt_entry_size
1248 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1249 }
1250 }
1251
1252 if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1253 || (!bfd_link_pic (info) && !htab->elf.srelbss))
1254 abort ();
1255
1256 return TRUE;
1257 }
1258
1259 static bfd_boolean
1260 create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1261 {
1262 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1263 struct elf_link_hash_table *htab = elf_hash_table (info);
1264 flagword flags, pltflags;
1265 asection *s;
1266
1267 if (htab->irelifunc != NULL || htab->iplt != NULL)
1268 return TRUE;
1269
1270 flags = bed->dynamic_sec_flags;
1271 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1272
1273 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1274 if (s == NULL
1275 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1276 return FALSE;
1277 htab->iplt = s;
1278
1279 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1280 flags | SEC_READONLY);
1281 if (s == NULL
1282 || ! bfd_set_section_alignment (abfd, s,
1283 bed->s->log_file_align))
1284 return FALSE;
1285 htab->irelplt = s;
1286
1287 return TRUE;
1288 }
1289
1290 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1291
1292 void
1293 _bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
1294 struct elf_link_hash_entry *dir,
1295 struct elf_link_hash_entry *ind)
1296 {
1297 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1298
1299 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1300 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1301
1302 if (eind->dyn_relocs != NULL)
1303 {
1304 if (edir->dyn_relocs != NULL)
1305 {
1306 struct _bfd_sparc_elf_dyn_relocs **pp;
1307 struct _bfd_sparc_elf_dyn_relocs *p;
1308
1309 /* Add reloc counts against the indirect sym to the direct sym
1310 list. Merge any entries against the same section. */
1311 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1312 {
1313 struct _bfd_sparc_elf_dyn_relocs *q;
1314
1315 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1316 if (q->sec == p->sec)
1317 {
1318 q->pc_count += p->pc_count;
1319 q->count += p->count;
1320 *pp = p->next;
1321 break;
1322 }
1323 if (q == NULL)
1324 pp = &p->next;
1325 }
1326 *pp = edir->dyn_relocs;
1327 }
1328
1329 edir->dyn_relocs = eind->dyn_relocs;
1330 eind->dyn_relocs = NULL;
1331 }
1332
1333 if (ind->root.type == bfd_link_hash_indirect
1334 && dir->got.refcount <= 0)
1335 {
1336 edir->tls_type = eind->tls_type;
1337 eind->tls_type = GOT_UNKNOWN;
1338 }
1339
1340 /* Copy has_got_reloc and has_non_got_reloc. */
1341 edir->has_got_reloc |= eind->has_got_reloc;
1342 edir->has_non_got_reloc |= eind->has_non_got_reloc;
1343
1344 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1345 }
1346
1347 static int
1348 sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1349 int r_type, int is_local)
1350 {
1351 if (! ABI_64_P (abfd)
1352 && r_type == R_SPARC_TLS_GD_HI22
1353 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1354 r_type = R_SPARC_REV32;
1355
1356 if (bfd_link_pic (info))
1357 return r_type;
1358
1359 switch (r_type)
1360 {
1361 case R_SPARC_TLS_GD_HI22:
1362 if (is_local)
1363 return R_SPARC_TLS_LE_HIX22;
1364 return R_SPARC_TLS_IE_HI22;
1365 case R_SPARC_TLS_GD_LO10:
1366 if (is_local)
1367 return R_SPARC_TLS_LE_LOX10;
1368 return R_SPARC_TLS_IE_LO10;
1369 case R_SPARC_TLS_IE_HI22:
1370 if (is_local)
1371 return R_SPARC_TLS_LE_HIX22;
1372 return r_type;
1373 case R_SPARC_TLS_IE_LO10:
1374 if (is_local)
1375 return R_SPARC_TLS_LE_LOX10;
1376 return r_type;
1377 case R_SPARC_TLS_LDM_HI22:
1378 return R_SPARC_TLS_LE_HIX22;
1379 case R_SPARC_TLS_LDM_LO10:
1380 return R_SPARC_TLS_LE_LOX10;
1381 }
1382
1383 return r_type;
1384 }
1385 \f
1386 /* Look through the relocs for a section during the first phase, and
1387 allocate space in the global offset table or procedure linkage
1388 table. */
1389
1390 bfd_boolean
1391 _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1392 asection *sec, const Elf_Internal_Rela *relocs)
1393 {
1394 struct _bfd_sparc_elf_link_hash_table *htab;
1395 Elf_Internal_Shdr *symtab_hdr;
1396 struct elf_link_hash_entry **sym_hashes;
1397 const Elf_Internal_Rela *rel;
1398 const Elf_Internal_Rela *rel_end;
1399 asection *sreloc;
1400 int num_relocs;
1401 bfd_boolean checked_tlsgd = FALSE;
1402
1403 if (bfd_link_relocatable (info))
1404 return TRUE;
1405
1406 htab = _bfd_sparc_elf_hash_table (info);
1407 BFD_ASSERT (htab != NULL);
1408 symtab_hdr = &elf_symtab_hdr (abfd);
1409 sym_hashes = elf_sym_hashes (abfd);
1410
1411 sreloc = NULL;
1412
1413 if (ABI_64_P (abfd))
1414 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
1415 else
1416 num_relocs = sec->reloc_count;
1417
1418 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1419
1420 if (htab->elf.dynobj == NULL)
1421 htab->elf.dynobj = abfd;
1422 if (!create_ifunc_sections (htab->elf.dynobj, info))
1423 return FALSE;
1424
1425 rel_end = relocs + num_relocs;
1426 for (rel = relocs; rel < rel_end; rel++)
1427 {
1428 unsigned int r_type;
1429 unsigned long 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 {
2315 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2316 return FALSE;
2317 }
2318
2319 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
2320 || (h->type == STT_GNU_IFUNC
2321 && h->def_regular))
2322 {
2323 asection *s = htab->elf.splt;
2324
2325 if (s == NULL)
2326 s = htab->elf.iplt;
2327
2328 /* Allocate room for the header. */
2329 if (s->size == 0)
2330 {
2331 s->size = htab->plt_header_size;
2332
2333 /* Allocate space for the .rela.plt.unloaded relocations. */
2334 if (htab->is_vxworks && !bfd_link_pic (info))
2335 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2336 }
2337
2338 /* The procedure linkage table size is bounded by the magnitude
2339 of the offset we can describe in the entry. */
2340 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
2341 (((bfd_vma)1 << 31) << 1) : 0x400000))
2342 {
2343 bfd_set_error (bfd_error_bad_value);
2344 return FALSE;
2345 }
2346
2347 if (SPARC_ELF_WORD_BYTES(htab) == 8
2348 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2349 {
2350 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2351
2352
2353 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2354
2355 h->plt.offset = (s->size - (off * 8));
2356 }
2357 else
2358 h->plt.offset = s->size;
2359
2360 /* If this symbol is not defined in a regular file, and we are
2361 not generating a shared library, then set the symbol to this
2362 location in the .plt. This is required to make function
2363 pointers compare as equal between the normal executable and
2364 the shared library. */
2365 if (! bfd_link_pic (info)
2366 && !h->def_regular)
2367 {
2368 h->root.u.def.section = s;
2369 h->root.u.def.value = h->plt.offset;
2370 }
2371
2372 /* Make room for this entry. */
2373 s->size += htab->plt_entry_size;
2374
2375 /* There should be no PLT relocations against resolved undefined
2376 weak symbols in the executable. */
2377 if (!resolved_to_zero)
2378 {
2379 /* We also need to make an entry in the .rela.plt section. */
2380 if (s == htab->elf.splt)
2381 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
2382 else
2383 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
2384 }
2385
2386 if (htab->is_vxworks)
2387 {
2388 /* Allocate space for the .got.plt entry. */
2389 htab->elf.sgotplt->size += 4;
2390
2391 /* ...and for the .rela.plt.unloaded relocations. */
2392 if (!bfd_link_pic (info))
2393 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2394 }
2395 }
2396 else
2397 {
2398 h->plt.offset = (bfd_vma) -1;
2399 h->needs_plt = 0;
2400 }
2401 }
2402 else
2403 {
2404 h->plt.offset = (bfd_vma) -1;
2405 h->needs_plt = 0;
2406 }
2407
2408 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2409 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2410 if (h->got.refcount > 0
2411 && !bfd_link_pic (info)
2412 && h->dynindx == -1
2413 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2414 h->got.offset = (bfd_vma) -1;
2415 else if (h->got.refcount > 0)
2416 {
2417 asection *s;
2418 bfd_boolean dyn;
2419 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2420
2421 /* Make sure this symbol is output as a dynamic symbol.
2422 Undefined weak syms won't yet be marked as dynamic. */
2423 if (h->dynindx == -1
2424 && !h->forced_local
2425 && !resolved_to_zero)
2426 {
2427 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2428 return FALSE;
2429 }
2430
2431 s = htab->elf.sgot;
2432 h->got.offset = s->size;
2433 s->size += SPARC_ELF_WORD_BYTES (htab);
2434 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2435 if (tls_type == GOT_TLS_GD)
2436 s->size += SPARC_ELF_WORD_BYTES (htab);
2437 dyn = htab->elf.dynamic_sections_created;
2438 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2439 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
2440 global. No dynamic relocations are needed against resolved
2441 undefined weak symbols in an executable. */
2442 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
2443 || tls_type == GOT_TLS_IE
2444 || h->type == STT_GNU_IFUNC)
2445 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2446 else if (tls_type == GOT_TLS_GD)
2447 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
2448 else if (((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2449 && !resolved_to_zero)
2450 || h->root.type != bfd_link_hash_undefweak)
2451 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2452 bfd_link_pic (info),
2453 h))
2454 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2455 }
2456 else
2457 h->got.offset = (bfd_vma) -1;
2458
2459 if (eh->dyn_relocs == NULL)
2460 return TRUE;
2461
2462 /* In the shared -Bsymbolic case, discard space allocated for
2463 dynamic pc-relative relocs against symbols which turn out to be
2464 defined in regular objects. For the normal shared case, discard
2465 space for pc-relative relocs that have become local due to symbol
2466 visibility changes. */
2467
2468 if (bfd_link_pic (info))
2469 {
2470 if (SYMBOL_CALLS_LOCAL (info, h))
2471 {
2472 struct _bfd_sparc_elf_dyn_relocs **pp;
2473
2474 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2475 {
2476 p->count -= p->pc_count;
2477 p->pc_count = 0;
2478 if (p->count == 0)
2479 *pp = p->next;
2480 else
2481 pp = &p->next;
2482 }
2483 }
2484
2485 if (htab->is_vxworks)
2486 {
2487 struct _bfd_sparc_elf_dyn_relocs **pp;
2488
2489 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2490 {
2491 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2492 *pp = p->next;
2493 else
2494 pp = &p->next;
2495 }
2496 }
2497
2498 /* Also discard relocs on undefined weak syms with non-default
2499 visibility or in PIE. */
2500 if (eh->dyn_relocs != NULL
2501 && h->root.type == bfd_link_hash_undefweak)
2502 {
2503 /* An undefined weak symbol is never
2504 bound locally in a shared library. */
2505
2506 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2507 || resolved_to_zero)
2508 {
2509 if (h->non_got_ref)
2510 {
2511 /* Keep dynamic non-GOT/non-PLT relocation so that we
2512 can branch to 0 without PLT. */
2513 struct _bfd_sparc_elf_dyn_relocs **pp;
2514
2515 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2516 if (p->pc_count == 0)
2517 *pp = p->next;
2518 else
2519 {
2520 /* Remove other relocations. */
2521 p->count = p->pc_count;
2522 pp = &p->next;
2523 }
2524
2525 if (eh->dyn_relocs != NULL)
2526 {
2527 /* Make sure undefined weak symbols are output
2528 as dynamic symbols in PIEs for dynamic non-GOT
2529 non-PLT reloations. */
2530 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2531 return FALSE;
2532 }
2533 }
2534 else
2535 eh->dyn_relocs = NULL;
2536 }
2537
2538 /* Make sure undefined weak symbols are output as a dynamic
2539 symbol in PIEs. */
2540 else if (h->dynindx == -1
2541 && !h->forced_local)
2542 {
2543 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2544 return FALSE;
2545 }
2546 }
2547 }
2548 else
2549 {
2550 /* For the non-shared case, discard space for relocs against
2551 symbols which turn out to need copy relocs or are not
2552 dynamic. */
2553
2554 if ((!h->non_got_ref
2555 || (h->root.type == bfd_link_hash_undefweak
2556 && !resolved_to_zero))
2557 && ((h->def_dynamic
2558 && !h->def_regular)
2559 || (htab->elf.dynamic_sections_created
2560 && (h->root.type == bfd_link_hash_undefweak
2561 || h->root.type == bfd_link_hash_undefined))))
2562 {
2563 /* Make sure this symbol is output as a dynamic symbol.
2564 Undefined weak syms won't yet be marked as dynamic. */
2565 if (h->dynindx == -1
2566 && !h->forced_local
2567 && !resolved_to_zero)
2568 {
2569 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2570 return FALSE;
2571 }
2572
2573 /* If that succeeded, we know we'll be keeping all the
2574 relocs. */
2575 if (h->dynindx != -1)
2576 goto keep;
2577 }
2578
2579 eh->dyn_relocs = NULL;
2580
2581 keep: ;
2582 }
2583
2584 /* Finally, allocate space. */
2585 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2586 {
2587 asection *sreloc = elf_section_data (p->sec)->sreloc;
2588 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2589 }
2590
2591 return TRUE;
2592 }
2593
2594 /* Allocate space in .plt, .got and associated reloc sections for
2595 local dynamic relocs. */
2596
2597 static bfd_boolean
2598 allocate_local_dynrelocs (void **slot, void *inf)
2599 {
2600 struct elf_link_hash_entry *h
2601 = (struct elf_link_hash_entry *) *slot;
2602
2603 if (h->type != STT_GNU_IFUNC
2604 || !h->def_regular
2605 || !h->ref_regular
2606 || !h->forced_local
2607 || h->root.type != bfd_link_hash_defined)
2608 abort ();
2609
2610 return allocate_dynrelocs (h, inf);
2611 }
2612
2613 /* Find any dynamic relocs that apply to read-only sections. */
2614
2615 static bfd_boolean
2616 readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2617 {
2618 struct _bfd_sparc_elf_link_hash_entry *eh;
2619 struct _bfd_sparc_elf_dyn_relocs *p;
2620
2621 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2622 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2623 {
2624 asection *s = p->sec->output_section;
2625
2626 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2627 {
2628 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2629
2630 info->flags |= DF_TEXTREL;
2631
2632 /* Not an error, just cut short the traversal. */
2633 return FALSE;
2634 }
2635 }
2636 return TRUE;
2637 }
2638
2639 /* Return true if the dynamic symbol for a given section should be
2640 omitted when creating a shared library. */
2641
2642 bfd_boolean
2643 _bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2644 struct bfd_link_info *info,
2645 asection *p)
2646 {
2647 /* We keep the .got section symbol so that explicit relocations
2648 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2649 can be turned into relocations against the .got symbol. */
2650 if (strcmp (p->name, ".got") == 0)
2651 return FALSE;
2652
2653 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2654 }
2655
2656 /* Set the sizes of the dynamic sections. */
2657
2658 bfd_boolean
2659 _bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2660 struct bfd_link_info *info)
2661 {
2662 struct _bfd_sparc_elf_link_hash_table *htab;
2663 bfd *dynobj;
2664 asection *s;
2665 bfd *ibfd;
2666
2667 htab = _bfd_sparc_elf_hash_table (info);
2668 BFD_ASSERT (htab != NULL);
2669 dynobj = htab->elf.dynobj;
2670 BFD_ASSERT (dynobj != NULL);
2671
2672 if (elf_hash_table (info)->dynamic_sections_created)
2673 {
2674 /* Set the contents of the .interp section to the interpreter. */
2675 if (bfd_link_executable (info) && !info->nointerp)
2676 {
2677 s = bfd_get_linker_section (dynobj, ".interp");
2678 BFD_ASSERT (s != NULL);
2679 s->size = htab->dynamic_interpreter_size;
2680 s->contents = (unsigned char *) htab->dynamic_interpreter;
2681 htab->interp = s;
2682 }
2683 }
2684
2685 /* Set up .got offsets for local syms, and space for local dynamic
2686 relocs. */
2687 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2688 {
2689 bfd_signed_vma *local_got;
2690 bfd_signed_vma *end_local_got;
2691 char *local_tls_type;
2692 bfd_size_type locsymcount;
2693 Elf_Internal_Shdr *symtab_hdr;
2694 asection *srel;
2695
2696 if (! is_sparc_elf (ibfd))
2697 continue;
2698
2699 for (s = ibfd->sections; s != NULL; s = s->next)
2700 {
2701 struct _bfd_sparc_elf_dyn_relocs *p;
2702
2703 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2704 {
2705 if (!bfd_is_abs_section (p->sec)
2706 && bfd_is_abs_section (p->sec->output_section))
2707 {
2708 /* Input section has been discarded, either because
2709 it is a copy of a linkonce section or due to
2710 linker script /DISCARD/, so we'll be discarding
2711 the relocs too. */
2712 }
2713 else if (htab->is_vxworks
2714 && strcmp (p->sec->output_section->name,
2715 ".tls_vars") == 0)
2716 {
2717 /* Relocations in vxworks .tls_vars sections are
2718 handled specially by the loader. */
2719 }
2720 else if (p->count != 0)
2721 {
2722 srel = elf_section_data (p->sec)->sreloc;
2723 if (!htab->elf.dynamic_sections_created)
2724 srel = htab->elf.irelplt;
2725 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2726 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2727 info->flags |= DF_TEXTREL;
2728 }
2729 }
2730 }
2731
2732 local_got = elf_local_got_refcounts (ibfd);
2733 if (!local_got)
2734 continue;
2735
2736 symtab_hdr = &elf_symtab_hdr (ibfd);
2737 locsymcount = symtab_hdr->sh_info;
2738 end_local_got = local_got + locsymcount;
2739 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
2740 s = htab->elf.sgot;
2741 srel = htab->elf.srelgot;
2742 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2743 {
2744 if (*local_got > 0)
2745 {
2746 *local_got = s->size;
2747 s->size += SPARC_ELF_WORD_BYTES (htab);
2748 if (*local_tls_type == GOT_TLS_GD)
2749 s->size += SPARC_ELF_WORD_BYTES (htab);
2750 if (bfd_link_pic (info)
2751 || *local_tls_type == GOT_TLS_GD
2752 || *local_tls_type == GOT_TLS_IE)
2753 srel->size += SPARC_ELF_RELA_BYTES (htab);
2754 }
2755 else
2756 *local_got = (bfd_vma) -1;
2757 }
2758 }
2759
2760 if (htab->tls_ldm_got.refcount > 0)
2761 {
2762 /* Allocate 2 got entries and 1 dynamic reloc for
2763 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
2764 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2765 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2766 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2767 }
2768 else
2769 htab->tls_ldm_got.offset = -1;
2770
2771 /* Allocate global sym .plt and .got entries, and space for global
2772 sym dynamic relocs. */
2773 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2774
2775 /* Allocate .plt and .got entries, and space for local symbols. */
2776 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2777
2778 if (! ABI_64_P (output_bfd)
2779 && !htab->is_vxworks
2780 && elf_hash_table (info)->dynamic_sections_created)
2781 {
2782 /* Make space for the trailing nop in .plt. */
2783 if (htab->elf.splt->size > 0)
2784 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
2785
2786 /* If the .got section is more than 0x1000 bytes, we add
2787 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2788 bit relocations have a greater chance of working.
2789
2790 FIXME: Make this optimization work for 64-bit too. */
2791 if (htab->elf.sgot->size >= 0x1000
2792 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2793 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2794 }
2795
2796 /* The check_relocs and adjust_dynamic_symbol entry points have
2797 determined the sizes of the various dynamic sections. Allocate
2798 memory for them. */
2799 for (s = dynobj->sections; s != NULL; s = s->next)
2800 {
2801 if ((s->flags & SEC_LINKER_CREATED) == 0)
2802 continue;
2803
2804 if (s == htab->elf.splt
2805 || s == htab->elf.sgot
2806 || s == htab->elf.sdynbss
2807 || s == htab->elf.sdynrelro
2808 || s == htab->elf.iplt
2809 || s == htab->elf.sgotplt)
2810 {
2811 /* Strip this section if we don't need it; see the
2812 comment below. */
2813 }
2814 else if (CONST_STRNEQ (s->name, ".rela"))
2815 {
2816 if (s->size != 0)
2817 {
2818 /* We use the reloc_count field as a counter if we need
2819 to copy relocs into the output file. */
2820 s->reloc_count = 0;
2821 }
2822 }
2823 else
2824 {
2825 /* It's not one of our sections. */
2826 continue;
2827 }
2828
2829 if (s->size == 0)
2830 {
2831 /* If we don't need this section, strip it from the
2832 output file. This is mostly to handle .rela.bss and
2833 .rela.plt. We must create both sections in
2834 create_dynamic_sections, because they must be created
2835 before the linker maps input sections to output
2836 sections. The linker does that before
2837 adjust_dynamic_symbol is called, and it is that
2838 function which decides whether anything needs to go
2839 into these sections. */
2840 s->flags |= SEC_EXCLUDE;
2841 continue;
2842 }
2843
2844 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2845 continue;
2846
2847 /* Allocate memory for the section contents. Zero the memory
2848 for the benefit of .rela.plt, which has 4 unused entries
2849 at the beginning, and we don't want garbage. */
2850 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2851 if (s->contents == NULL)
2852 return FALSE;
2853 }
2854
2855 if (elf_hash_table (info)->dynamic_sections_created)
2856 {
2857 /* Add some entries to the .dynamic section. We fill in the
2858 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2859 must add the entries now so that we get the correct size for
2860 the .dynamic section. The DT_DEBUG entry is filled in by the
2861 dynamic linker and used by the debugger. */
2862 #define add_dynamic_entry(TAG, VAL) \
2863 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2864
2865 if (bfd_link_executable (info))
2866 {
2867 if (!add_dynamic_entry (DT_DEBUG, 0))
2868 return FALSE;
2869 }
2870
2871 if (htab->elf.srelplt->size != 0)
2872 {
2873 if (!add_dynamic_entry (DT_PLTGOT, 0)
2874 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2875 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2876 || !add_dynamic_entry (DT_JMPREL, 0))
2877 return FALSE;
2878 }
2879
2880 if (!add_dynamic_entry (DT_RELA, 0)
2881 || !add_dynamic_entry (DT_RELASZ, 0)
2882 || !add_dynamic_entry (DT_RELAENT,
2883 SPARC_ELF_RELA_BYTES (htab)))
2884 return FALSE;
2885
2886 /* If any dynamic relocs apply to a read-only section,
2887 then we need a DT_TEXTREL entry. */
2888 if ((info->flags & DF_TEXTREL) == 0)
2889 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
2890
2891 if (info->flags & DF_TEXTREL)
2892 {
2893 if (!add_dynamic_entry (DT_TEXTREL, 0))
2894 return FALSE;
2895 }
2896
2897 if (ABI_64_P (output_bfd))
2898 {
2899 int reg;
2900 struct _bfd_sparc_elf_app_reg * app_regs;
2901 struct elf_strtab_hash *dynstr;
2902 struct elf_link_hash_table *eht = elf_hash_table (info);
2903
2904 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2905 entries if needed. */
2906 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2907 dynstr = eht->dynstr;
2908
2909 for (reg = 0; reg < 4; reg++)
2910 if (app_regs [reg].name != NULL)
2911 {
2912 struct elf_link_local_dynamic_entry *entry, *e;
2913
2914 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2915 return FALSE;
2916
2917 entry = (struct elf_link_local_dynamic_entry *)
2918 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2919 if (entry == NULL)
2920 return FALSE;
2921
2922 /* We cheat here a little bit: the symbol will not be local, so we
2923 put it at the end of the dynlocal linked list. We will fix it
2924 later on, as we have to fix other fields anyway. */
2925 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2926 entry->isym.st_size = 0;
2927 if (*app_regs [reg].name != '\0')
2928 entry->isym.st_name
2929 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2930 else
2931 entry->isym.st_name = 0;
2932 entry->isym.st_other = 0;
2933 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2934 STT_REGISTER);
2935 entry->isym.st_shndx = app_regs [reg].shndx;
2936 entry->isym.st_target_internal = 0;
2937 entry->next = NULL;
2938 entry->input_bfd = output_bfd;
2939 entry->input_indx = -1;
2940
2941 if (eht->dynlocal == NULL)
2942 eht->dynlocal = entry;
2943 else
2944 {
2945 for (e = eht->dynlocal; e->next; e = e->next)
2946 ;
2947 e->next = entry;
2948 }
2949 eht->dynsymcount++;
2950 }
2951 }
2952 if (htab->is_vxworks
2953 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2954 return FALSE;
2955 }
2956 #undef add_dynamic_entry
2957
2958 return TRUE;
2959 }
2960 \f
2961 bfd_boolean
2962 _bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2963 {
2964 if (!sec->used_by_bfd)
2965 {
2966 struct _bfd_sparc_elf_section_data *sdata;
2967 bfd_size_type amt = sizeof (*sdata);
2968
2969 sdata = bfd_zalloc (abfd, amt);
2970 if (sdata == NULL)
2971 return FALSE;
2972 sec->used_by_bfd = sdata;
2973 }
2974
2975 return _bfd_elf_new_section_hook (abfd, sec);
2976 }
2977
2978 bfd_boolean
2979 _bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2980 struct bfd_section *section,
2981 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2982 bfd_boolean *again)
2983 {
2984 if (bfd_link_relocatable (link_info))
2985 (*link_info->callbacks->einfo)
2986 (_("%P%F: --relax and -r may not be used together\n"));
2987
2988 *again = FALSE;
2989 sec_do_relax (section) = 1;
2990 return TRUE;
2991 }
2992 \f
2993 /* Return the base VMA address which should be subtracted from real addresses
2994 when resolving @dtpoff relocation.
2995 This is PT_TLS segment p_vaddr. */
2996
2997 static bfd_vma
2998 dtpoff_base (struct bfd_link_info *info)
2999 {
3000 /* If tls_sec is NULL, we should have signalled an error already. */
3001 if (elf_hash_table (info)->tls_sec == NULL)
3002 return 0;
3003 return elf_hash_table (info)->tls_sec->vma;
3004 }
3005
3006 /* Return the relocation value for @tpoff relocation
3007 if STT_TLS virtual address is ADDRESS. */
3008
3009 static bfd_vma
3010 tpoff (struct bfd_link_info *info, bfd_vma address)
3011 {
3012 struct elf_link_hash_table *htab = elf_hash_table (info);
3013 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
3014 bfd_vma static_tls_size;
3015
3016 /* If tls_sec is NULL, we should have signalled an error already. */
3017 if (htab->tls_sec == NULL)
3018 return 0;
3019
3020 /* Consider special static TLS alignment requirements. */
3021 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
3022 return address - static_tls_size - htab->tls_sec->vma;
3023 }
3024
3025 /* Return the relocation value for a %gdop relocation. */
3026
3027 static bfd_vma
3028 gdopoff (struct bfd_link_info *info, bfd_vma address)
3029 {
3030 struct elf_link_hash_table *htab = elf_hash_table (info);
3031 bfd_vma got_base;
3032
3033 got_base = (htab->hgot->root.u.def.value
3034 + htab->hgot->root.u.def.section->output_offset
3035 + htab->hgot->root.u.def.section->output_section->vma);
3036
3037 return address - got_base;
3038 }
3039
3040 /* Return whether H is local and its ADDRESS is within 4G of
3041 _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
3042 sethi, xor sequence. */
3043
3044 static bfd_boolean
3045 gdop_relative_offset_ok (struct bfd_link_info *info,
3046 struct elf_link_hash_entry *h,
3047 bfd_vma address ATTRIBUTE_UNUSED)
3048 {
3049 if (!SYMBOL_REFERENCES_LOCAL (info, h))
3050 return FALSE;
3051 /* If H is undefined, ADDRESS will be zero. We can't allow a
3052 relative offset to "zero" when producing PIEs or shared libs.
3053 Note that to get here with an undefined symbol it must also be
3054 hidden or internal visibility. */
3055 if (bfd_link_pic (info)
3056 && h != NULL
3057 && (h->root.type == bfd_link_hash_undefweak
3058 || h->root.type == bfd_link_hash_undefined))
3059 return FALSE;
3060 #ifdef BFD64
3061 return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
3062 #else
3063 return TRUE;
3064 #endif
3065 }
3066
3067 /* Relocate a SPARC ELF section. */
3068
3069 bfd_boolean
3070 _bfd_sparc_elf_relocate_section (bfd *output_bfd,
3071 struct bfd_link_info *info,
3072 bfd *input_bfd,
3073 asection *input_section,
3074 bfd_byte *contents,
3075 Elf_Internal_Rela *relocs,
3076 Elf_Internal_Sym *local_syms,
3077 asection **local_sections)
3078 {
3079 struct _bfd_sparc_elf_link_hash_table *htab;
3080 Elf_Internal_Shdr *symtab_hdr;
3081 struct elf_link_hash_entry **sym_hashes;
3082 bfd_vma *local_got_offsets;
3083 bfd_vma got_base;
3084 asection *sreloc;
3085 Elf_Internal_Rela *rel;
3086 Elf_Internal_Rela *relend;
3087 int num_relocs;
3088 bfd_boolean is_vxworks_tls;
3089
3090 htab = _bfd_sparc_elf_hash_table (info);
3091 BFD_ASSERT (htab != NULL);
3092 symtab_hdr = &elf_symtab_hdr (input_bfd);
3093 sym_hashes = elf_sym_hashes (input_bfd);
3094 local_got_offsets = elf_local_got_offsets (input_bfd);
3095
3096 if (elf_hash_table (info)->hgot == NULL)
3097 got_base = 0;
3098 else
3099 got_base = elf_hash_table (info)->hgot->root.u.def.value;
3100
3101 sreloc = elf_section_data (input_section)->sreloc;
3102 /* We have to handle relocations in vxworks .tls_vars sections
3103 specially, because the dynamic loader is 'weird'. */
3104 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3105 && !strcmp (input_section->output_section->name,
3106 ".tls_vars"));
3107
3108 rel = relocs;
3109 if (ABI_64_P (output_bfd))
3110 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
3111 else
3112 num_relocs = input_section->reloc_count;
3113 relend = relocs + num_relocs;
3114 for (; rel < relend; rel++)
3115 {
3116 int r_type, tls_type;
3117 reloc_howto_type *howto;
3118 unsigned long r_symndx;
3119 struct elf_link_hash_entry *h;
3120 struct _bfd_sparc_elf_link_hash_entry *eh;
3121 Elf_Internal_Sym *sym;
3122 asection *sec;
3123 bfd_vma relocation, off;
3124 bfd_reloc_status_type r;
3125 bfd_boolean is_plt = FALSE;
3126 bfd_boolean unresolved_reloc;
3127 bfd_boolean resolved_to_zero;
3128
3129 r_type = SPARC_ELF_R_TYPE (rel->r_info);
3130 if (r_type == R_SPARC_GNU_VTINHERIT
3131 || r_type == R_SPARC_GNU_VTENTRY)
3132 continue;
3133
3134 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
3135 {
3136 bfd_set_error (bfd_error_bad_value);
3137 return FALSE;
3138 }
3139 howto = _bfd_sparc_elf_howto_table + r_type;
3140
3141 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
3142 h = NULL;
3143 sym = NULL;
3144 sec = NULL;
3145 unresolved_reloc = FALSE;
3146 if (r_symndx < symtab_hdr->sh_info)
3147 {
3148 sym = local_syms + r_symndx;
3149 sec = local_sections[r_symndx];
3150 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
3151
3152 if (!bfd_link_relocatable (info)
3153 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
3154 {
3155 /* Relocate against local STT_GNU_IFUNC symbol. */
3156 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
3157 rel, FALSE);
3158 if (h == NULL)
3159 abort ();
3160
3161 /* Set STT_GNU_IFUNC symbol value. */
3162 h->root.u.def.value = sym->st_value;
3163 h->root.u.def.section = sec;
3164 }
3165 }
3166 else
3167 {
3168 bfd_boolean warned, ignored;
3169
3170 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3171 r_symndx, symtab_hdr, sym_hashes,
3172 h, sec, relocation,
3173 unresolved_reloc, warned, ignored);
3174 if (warned)
3175 {
3176 /* To avoid generating warning messages about truncated
3177 relocations, set the relocation's address to be the same as
3178 the start of this section. */
3179 if (input_section->output_section != NULL)
3180 relocation = input_section->output_section->vma;
3181 else
3182 relocation = 0;
3183 }
3184 }
3185
3186 if (sec != NULL && discarded_section (sec))
3187 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3188 rel, 1, relend, howto, 0, contents);
3189
3190 if (bfd_link_relocatable (info))
3191 continue;
3192
3193 if (h != NULL
3194 && h->type == STT_GNU_IFUNC
3195 && h->def_regular)
3196 {
3197 asection *plt_sec;
3198 const char *name;
3199
3200 if ((input_section->flags & SEC_ALLOC) == 0
3201 || h->plt.offset == (bfd_vma) -1)
3202 abort ();
3203
3204 plt_sec = htab->elf.splt;
3205 if (! plt_sec)
3206 plt_sec =htab->elf.iplt;
3207
3208 switch (r_type)
3209 {
3210 case R_SPARC_GOTDATA_OP:
3211 continue;
3212
3213 case R_SPARC_GOTDATA_OP_HIX22:
3214 case R_SPARC_GOTDATA_OP_LOX10:
3215 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3216 ? R_SPARC_GOT22
3217 : R_SPARC_GOT10);
3218 howto = _bfd_sparc_elf_howto_table + r_type;
3219 /* Fall through. */
3220
3221 case R_SPARC_GOT10:
3222 case R_SPARC_GOT13:
3223 case R_SPARC_GOT22:
3224 if (htab->elf.sgot == NULL)
3225 abort ();
3226 off = h->got.offset;
3227 if (off == (bfd_vma) -1)
3228 abort();
3229 relocation = htab->elf.sgot->output_offset + off - got_base;
3230 goto do_relocation;
3231
3232 case R_SPARC_WPLT30:
3233 case R_SPARC_WDISP30:
3234 relocation = (plt_sec->output_section->vma
3235 + plt_sec->output_offset + h->plt.offset);
3236 goto do_relocation;
3237
3238 case R_SPARC_32:
3239 case R_SPARC_64:
3240 if (bfd_link_pic (info) && h->non_got_ref)
3241 {
3242 Elf_Internal_Rela outrel;
3243 bfd_vma offset;
3244
3245 offset = _bfd_elf_section_offset (output_bfd, info,
3246 input_section,
3247 rel->r_offset);
3248 if (offset == (bfd_vma) -1
3249 || offset == (bfd_vma) -2)
3250 abort();
3251
3252 outrel.r_offset = (input_section->output_section->vma
3253 + input_section->output_offset
3254 + offset);
3255
3256 if (h->dynindx == -1
3257 || h->forced_local
3258 || bfd_link_executable (info))
3259 {
3260 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3261 0, R_SPARC_IRELATIVE);
3262 outrel.r_addend = relocation + rel->r_addend;
3263 }
3264 else
3265 {
3266 if (h->dynindx == -1)
3267 abort();
3268 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3269 outrel.r_addend = rel->r_addend;
3270 }
3271
3272 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3273 continue;
3274 }
3275
3276 relocation = (plt_sec->output_section->vma
3277 + plt_sec->output_offset + h->plt.offset);
3278 goto do_relocation;
3279
3280 case R_SPARC_HI22:
3281 case R_SPARC_LO10:
3282 /* We should only see such relocs in static links. */
3283 if (bfd_link_pic (info))
3284 abort();
3285 relocation = (plt_sec->output_section->vma
3286 + plt_sec->output_offset + h->plt.offset);
3287 goto do_relocation;
3288
3289 default:
3290 if (h->root.root.string)
3291 name = h->root.root.string;
3292 else
3293 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3294 NULL);
3295 _bfd_error_handler
3296 /* xgettext:c-format */
3297 (_("%B: relocation %s against STT_GNU_IFUNC "
3298 "symbol `%s' isn't handled by %s"), input_bfd,
3299 _bfd_sparc_elf_howto_table[r_type].name,
3300 name, __FUNCTION__);
3301 bfd_set_error (bfd_error_bad_value);
3302 return FALSE;
3303 }
3304 }
3305
3306 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
3307 resolved_to_zero = (eh != NULL
3308 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh));
3309
3310 switch (r_type)
3311 {
3312 case R_SPARC_GOTDATA_OP_HIX22:
3313 case R_SPARC_GOTDATA_OP_LOX10:
3314 if (gdop_relative_offset_ok (info, h, relocation))
3315 {
3316 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3317 ? R_SPARC_GOTDATA_HIX22
3318 : R_SPARC_GOTDATA_LOX10);
3319 howto = _bfd_sparc_elf_howto_table + r_type;
3320 }
3321 break;
3322
3323 case R_SPARC_GOTDATA_OP:
3324 if (gdop_relative_offset_ok (info, h, relocation))
3325 {
3326 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3327
3328 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3329 relocation = 0x80000000 | (insn & 0x3e07c01f);
3330 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3331 }
3332 continue;
3333 }
3334
3335 switch (r_type)
3336 {
3337 case R_SPARC_GOTDATA_HIX22:
3338 case R_SPARC_GOTDATA_LOX10:
3339 relocation = gdopoff (info, relocation);
3340 break;
3341
3342 case R_SPARC_GOTDATA_OP_HIX22:
3343 case R_SPARC_GOTDATA_OP_LOX10:
3344 case R_SPARC_GOT10:
3345 case R_SPARC_GOT13:
3346 case R_SPARC_GOT22:
3347 /* Relocation is to the entry for this symbol in the global
3348 offset table. */
3349 if (htab->elf.sgot == NULL)
3350 abort ();
3351
3352 if (h != NULL)
3353 {
3354 bfd_boolean dyn;
3355
3356 off = h->got.offset;
3357 BFD_ASSERT (off != (bfd_vma) -1);
3358 dyn = elf_hash_table (info)->dynamic_sections_created;
3359
3360 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3361 bfd_link_pic (info),
3362 h)
3363 || (bfd_link_pic (info)
3364 && SYMBOL_REFERENCES_LOCAL (info, h)))
3365 {
3366 /* This is actually a static link, or it is a
3367 -Bsymbolic link and the symbol is defined
3368 locally, or the symbol was forced to be local
3369 because of a version file. We must initialize
3370 this entry in the global offset table. Since the
3371 offset must always be a multiple of 8 for 64-bit
3372 and 4 for 32-bit, we use the least significant bit
3373 to record whether we have initialized it already.
3374
3375 When doing a dynamic link, we create a .rela.got
3376 relocation entry to initialize the value. This
3377 is done in the finish_dynamic_symbol routine. */
3378 if ((off & 1) != 0)
3379 off &= ~1;
3380 else
3381 {
3382 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3383 htab->elf.sgot->contents + off);
3384 h->got.offset |= 1;
3385 }
3386 }
3387 else
3388 unresolved_reloc = FALSE;
3389 }
3390 else
3391 {
3392 BFD_ASSERT (local_got_offsets != NULL
3393 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3394
3395 off = local_got_offsets[r_symndx];
3396
3397 /* The offset must always be a multiple of 8 on 64-bit and
3398 4 on 32-bit. We use the least significant bit to record
3399 whether we have already processed this entry. */
3400 if ((off & 1) != 0)
3401 off &= ~1;
3402 else
3403 {
3404
3405 if (bfd_link_pic (info))
3406 {
3407 asection *s;
3408 Elf_Internal_Rela outrel;
3409
3410 /* We need to generate a R_SPARC_RELATIVE reloc
3411 for the dynamic linker. */
3412 s = htab->elf.srelgot;
3413 BFD_ASSERT (s != NULL);
3414
3415 outrel.r_offset = (htab->elf.sgot->output_section->vma
3416 + htab->elf.sgot->output_offset
3417 + off);
3418 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3419 0, R_SPARC_RELATIVE);
3420 outrel.r_addend = relocation;
3421 relocation = 0;
3422 sparc_elf_append_rela (output_bfd, s, &outrel);
3423 }
3424
3425 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3426 htab->elf.sgot->contents + off);
3427 local_got_offsets[r_symndx] |= 1;
3428 }
3429 }
3430 relocation = htab->elf.sgot->output_offset + off - got_base;
3431 break;
3432
3433 case R_SPARC_PLT32:
3434 case R_SPARC_PLT64:
3435 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3436 {
3437 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3438 goto r_sparc_plt32;
3439 }
3440 /* Fall through. */
3441
3442 case R_SPARC_WPLT30:
3443 case R_SPARC_HIPLT22:
3444 case R_SPARC_LOPLT10:
3445 case R_SPARC_PCPLT32:
3446 case R_SPARC_PCPLT22:
3447 case R_SPARC_PCPLT10:
3448 r_sparc_wplt30:
3449 /* Relocation is to the entry for this symbol in the
3450 procedure linkage table. */
3451
3452 if (! ABI_64_P (output_bfd))
3453 {
3454 /* The Solaris native assembler will generate a WPLT30 reloc
3455 for a local symbol if you assemble a call from one
3456 section to another when using -K pic. We treat it as
3457 WDISP30. */
3458 if (h == NULL)
3459 break;
3460 }
3461 /* PR 7027: We need similar behaviour for 64-bit binaries. */
3462 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3463 break;
3464 else
3465 {
3466 BFD_ASSERT (h != NULL);
3467 }
3468
3469 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3470 {
3471 /* We didn't make a PLT entry for this symbol. This
3472 happens when statically linking PIC code, or when
3473 using -Bsymbolic. */
3474 break;
3475 }
3476
3477 relocation = (htab->elf.splt->output_section->vma
3478 + htab->elf.splt->output_offset
3479 + h->plt.offset);
3480 unresolved_reloc = FALSE;
3481 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3482 {
3483 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3484 is_plt = TRUE;
3485 goto r_sparc_plt32;
3486 }
3487 break;
3488
3489 case R_SPARC_PC10:
3490 case R_SPARC_PC22:
3491 case R_SPARC_PC_HH22:
3492 case R_SPARC_PC_HM10:
3493 case R_SPARC_PC_LM22:
3494 if (h != NULL
3495 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3496 break;
3497 /* Fall through. */
3498 case R_SPARC_DISP8:
3499 case R_SPARC_DISP16:
3500 case R_SPARC_DISP32:
3501 case R_SPARC_DISP64:
3502 case R_SPARC_WDISP30:
3503 case R_SPARC_WDISP22:
3504 case R_SPARC_WDISP19:
3505 case R_SPARC_WDISP16:
3506 case R_SPARC_WDISP10:
3507 case R_SPARC_8:
3508 case R_SPARC_16:
3509 case R_SPARC_32:
3510 case R_SPARC_HI22:
3511 case R_SPARC_22:
3512 case R_SPARC_13:
3513 case R_SPARC_LO10:
3514 case R_SPARC_UA16:
3515 case R_SPARC_UA32:
3516 case R_SPARC_10:
3517 case R_SPARC_11:
3518 case R_SPARC_64:
3519 case R_SPARC_OLO10:
3520 case R_SPARC_HH22:
3521 case R_SPARC_HM10:
3522 case R_SPARC_LM22:
3523 case R_SPARC_7:
3524 case R_SPARC_5:
3525 case R_SPARC_6:
3526 case R_SPARC_HIX22:
3527 case R_SPARC_LOX10:
3528 case R_SPARC_H44:
3529 case R_SPARC_M44:
3530 case R_SPARC_L44:
3531 case R_SPARC_H34:
3532 case R_SPARC_UA64:
3533 r_sparc_plt32:
3534 if ((input_section->flags & SEC_ALLOC) == 0
3535 || is_vxworks_tls)
3536 break;
3537
3538 /* Copy dynamic function pointer relocations. Don't generate
3539 dynamic relocations against resolved undefined weak symbols
3540 in PIE. */
3541 if ((bfd_link_pic (info)
3542 && (h == NULL
3543 || ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3544 && !resolved_to_zero)
3545 || h->root.type != bfd_link_hash_undefweak))
3546 && (! howto->pc_relative
3547 || !SYMBOL_CALLS_LOCAL (info, h)))
3548 || (!bfd_link_pic (info)
3549 && h != NULL
3550 && h->dynindx != -1
3551 && !h->non_got_ref
3552 && ((h->def_dynamic
3553 && !h->def_regular)
3554 || (h->root.type == bfd_link_hash_undefweak
3555 && !resolved_to_zero)
3556 || h->root.type == bfd_link_hash_undefined)))
3557 {
3558 Elf_Internal_Rela outrel;
3559 bfd_boolean skip, relocate = FALSE;
3560
3561 /* When generating a shared object, these relocations
3562 are copied into the output file to be resolved at run
3563 time. */
3564
3565 BFD_ASSERT (sreloc != NULL);
3566
3567 skip = FALSE;
3568
3569 outrel.r_offset =
3570 _bfd_elf_section_offset (output_bfd, info, input_section,
3571 rel->r_offset);
3572 if (outrel.r_offset == (bfd_vma) -1)
3573 skip = TRUE;
3574 else if (outrel.r_offset == (bfd_vma) -2)
3575 skip = TRUE, relocate = TRUE;
3576 outrel.r_offset += (input_section->output_section->vma
3577 + input_section->output_offset);
3578
3579 /* Optimize unaligned reloc usage now that we know where
3580 it finally resides. */
3581 switch (r_type)
3582 {
3583 case R_SPARC_16:
3584 if (outrel.r_offset & 1)
3585 r_type = R_SPARC_UA16;
3586 break;
3587 case R_SPARC_UA16:
3588 if (!(outrel.r_offset & 1))
3589 r_type = R_SPARC_16;
3590 break;
3591 case R_SPARC_32:
3592 if (outrel.r_offset & 3)
3593 r_type = R_SPARC_UA32;
3594 break;
3595 case R_SPARC_UA32:
3596 if (!(outrel.r_offset & 3))
3597 r_type = R_SPARC_32;
3598 break;
3599 case R_SPARC_64:
3600 if (outrel.r_offset & 7)
3601 r_type = R_SPARC_UA64;
3602 break;
3603 case R_SPARC_UA64:
3604 if (!(outrel.r_offset & 7))
3605 r_type = R_SPARC_64;
3606 break;
3607 case R_SPARC_DISP8:
3608 case R_SPARC_DISP16:
3609 case R_SPARC_DISP32:
3610 case R_SPARC_DISP64:
3611 /* If the symbol is not dynamic, we should not keep
3612 a dynamic relocation. But an .rela.* slot has been
3613 allocated for it, output R_SPARC_NONE.
3614 FIXME: Add code tracking needed dynamic relocs as
3615 e.g. i386 has. */
3616 if (h->dynindx == -1)
3617 skip = TRUE, relocate = TRUE;
3618 break;
3619 }
3620
3621 if (skip)
3622 memset (&outrel, 0, sizeof outrel);
3623 /* h->dynindx may be -1 if the symbol was marked to
3624 become local. */
3625 else if (h != NULL
3626 && h->dynindx != -1
3627 && (_bfd_sparc_elf_howto_table[r_type].pc_relative
3628 || !bfd_link_pic (info)
3629 || !SYMBOLIC_BIND (info, h)
3630 || !h->def_regular))
3631 {
3632 BFD_ASSERT (h->dynindx != -1);
3633 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3634 outrel.r_addend = rel->r_addend;
3635 }
3636 else
3637 {
3638 if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3639 || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
3640 {
3641 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3642 0, R_SPARC_RELATIVE);
3643 outrel.r_addend = relocation + rel->r_addend;
3644 }
3645 else
3646 {
3647 long indx;
3648
3649 outrel.r_addend = relocation + rel->r_addend;
3650
3651 if (is_plt)
3652 sec = htab->elf.splt;
3653
3654 if (bfd_is_abs_section (sec))
3655 indx = 0;
3656 else if (sec == NULL || sec->owner == NULL)
3657 {
3658 bfd_set_error (bfd_error_bad_value);
3659 return FALSE;
3660 }
3661 else
3662 {
3663 asection *osec;
3664
3665 /* We are turning this relocation into one
3666 against a section symbol. It would be
3667 proper to subtract the symbol's value,
3668 osec->vma, from the emitted reloc addend,
3669 but ld.so expects buggy relocs. */
3670 osec = sec->output_section;
3671 indx = elf_section_data (osec)->dynindx;
3672
3673 if (indx == 0)
3674 {
3675 osec = htab->elf.text_index_section;
3676 indx = elf_section_data (osec)->dynindx;
3677 }
3678
3679 /* FIXME: we really should be able to link non-pic
3680 shared libraries. */
3681 if (indx == 0)
3682 {
3683 BFD_FAIL ();
3684 _bfd_error_handler
3685 (_("%B: probably compiled without -fPIC?"),
3686 input_bfd);
3687 bfd_set_error (bfd_error_bad_value);
3688 return FALSE;
3689 }
3690 }
3691
3692 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3693 r_type);
3694 }
3695 }
3696
3697 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3698
3699 /* This reloc will be computed at runtime, so there's no
3700 need to do anything now. */
3701 if (! relocate)
3702 continue;
3703 }
3704 break;
3705
3706 case R_SPARC_TLS_GD_HI22:
3707 if (! ABI_64_P (input_bfd)
3708 && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
3709 {
3710 /* R_SPARC_REV32 used the same reloc number as
3711 R_SPARC_TLS_GD_HI22. */
3712 r_type = R_SPARC_REV32;
3713 break;
3714 }
3715 /* Fall through */
3716
3717 case R_SPARC_TLS_GD_LO10:
3718 case R_SPARC_TLS_IE_HI22:
3719 case R_SPARC_TLS_IE_LO10:
3720 r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
3721 tls_type = GOT_UNKNOWN;
3722 if (h == NULL && local_got_offsets)
3723 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3724 else if (h != NULL)
3725 {
3726 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3727 if (!bfd_link_pic (info)
3728 && h->dynindx == -1
3729 && tls_type == GOT_TLS_IE)
3730 switch (SPARC_ELF_R_TYPE (rel->r_info))
3731 {
3732 case R_SPARC_TLS_GD_HI22:
3733 case R_SPARC_TLS_IE_HI22:
3734 r_type = R_SPARC_TLS_LE_HIX22;
3735 break;
3736 default:
3737 r_type = R_SPARC_TLS_LE_LOX10;
3738 break;
3739 }
3740 }
3741 if (tls_type == GOT_TLS_IE)
3742 switch (r_type)
3743 {
3744 case R_SPARC_TLS_GD_HI22:
3745 r_type = R_SPARC_TLS_IE_HI22;
3746 break;
3747 case R_SPARC_TLS_GD_LO10:
3748 r_type = R_SPARC_TLS_IE_LO10;
3749 break;
3750 }
3751
3752 if (r_type == R_SPARC_TLS_LE_HIX22)
3753 {
3754 relocation = tpoff (info, relocation);
3755 break;
3756 }
3757 if (r_type == R_SPARC_TLS_LE_LOX10)
3758 {
3759 /* Change add into xor. */
3760 relocation = tpoff (info, relocation);
3761 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3762 contents + rel->r_offset)
3763 | 0x80182000), contents + rel->r_offset);
3764 break;
3765 }
3766
3767 if (h != NULL)
3768 {
3769 off = h->got.offset;
3770 h->got.offset |= 1;
3771 }
3772 else
3773 {
3774 BFD_ASSERT (local_got_offsets != NULL);
3775 off = local_got_offsets[r_symndx];
3776 local_got_offsets[r_symndx] |= 1;
3777 }
3778
3779 r_sparc_tlsldm:
3780 if (htab->elf.sgot == NULL)
3781 abort ();
3782
3783 if ((off & 1) != 0)
3784 off &= ~1;
3785 else
3786 {
3787 Elf_Internal_Rela outrel;
3788 int dr_type, indx;
3789
3790 if (htab->elf.srelgot == NULL)
3791 abort ();
3792
3793 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3794 htab->elf.sgot->contents + off);
3795 outrel.r_offset = (htab->elf.sgot->output_section->vma
3796 + htab->elf.sgot->output_offset + off);
3797 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3798 if (r_type == R_SPARC_TLS_IE_HI22
3799 || r_type == R_SPARC_TLS_IE_LO10)
3800 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3801 else
3802 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3803 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3804 outrel.r_addend = relocation - dtpoff_base (info);
3805 else
3806 outrel.r_addend = 0;
3807 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
3808 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3809
3810 if (r_type == R_SPARC_TLS_GD_HI22
3811 || r_type == R_SPARC_TLS_GD_LO10)
3812 {
3813 if (indx == 0)
3814 {
3815 BFD_ASSERT (! unresolved_reloc);
3816 SPARC_ELF_PUT_WORD (htab, output_bfd,
3817 relocation - dtpoff_base (info),
3818 (htab->elf.sgot->contents + off
3819 + SPARC_ELF_WORD_BYTES (htab)));
3820 }
3821 else
3822 {
3823 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3824 (htab->elf.sgot->contents + off
3825 + SPARC_ELF_WORD_BYTES (htab)));
3826 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3827 SPARC_ELF_DTPOFF_RELOC (htab));
3828 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
3829 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
3830 &outrel);
3831 }
3832 }
3833 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3834 {
3835 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3836 (htab->elf.sgot->contents + off
3837 + SPARC_ELF_WORD_BYTES (htab)));
3838 }
3839 }
3840
3841 if (off >= (bfd_vma) -2)
3842 abort ();
3843
3844 relocation = htab->elf.sgot->output_offset + off - got_base;
3845 unresolved_reloc = FALSE;
3846 howto = _bfd_sparc_elf_howto_table + r_type;
3847 break;
3848
3849 case R_SPARC_TLS_LDM_HI22:
3850 case R_SPARC_TLS_LDM_LO10:
3851 if (! bfd_link_pic (info))
3852 {
3853 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3854 continue;
3855 }
3856 off = htab->tls_ldm_got.offset;
3857 htab->tls_ldm_got.offset |= 1;
3858 goto r_sparc_tlsldm;
3859
3860 case R_SPARC_TLS_LDO_HIX22:
3861 case R_SPARC_TLS_LDO_LOX10:
3862 if (bfd_link_pic (info))
3863 {
3864 relocation -= dtpoff_base (info);
3865 break;
3866 }
3867
3868 r_type = (r_type == R_SPARC_TLS_LDO_HIX22
3869 ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
3870 /* Fall through. */
3871
3872 case R_SPARC_TLS_LE_HIX22:
3873 case R_SPARC_TLS_LE_LOX10:
3874 if (bfd_link_pic (info))
3875 {
3876 Elf_Internal_Rela outrel;
3877 bfd_boolean skip;
3878
3879 BFD_ASSERT (sreloc != NULL);
3880 skip = FALSE;
3881 outrel.r_offset =
3882 _bfd_elf_section_offset (output_bfd, info, input_section,
3883 rel->r_offset);
3884 if (outrel.r_offset == (bfd_vma) -1)
3885 skip = TRUE;
3886 else if (outrel.r_offset == (bfd_vma) -2)
3887 skip = TRUE;
3888 outrel.r_offset += (input_section->output_section->vma
3889 + input_section->output_offset);
3890 if (skip)
3891 memset (&outrel, 0, sizeof outrel);
3892 else
3893 {
3894 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3895 outrel.r_addend = relocation - dtpoff_base (info)
3896 + rel->r_addend;
3897 }
3898
3899 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3900 continue;
3901 }
3902 relocation = tpoff (info, relocation);
3903 break;
3904
3905 case R_SPARC_TLS_LDM_CALL:
3906 if (! bfd_link_pic (info))
3907 {
3908 /* mov %g0, %o0 */
3909 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3910 continue;
3911 }
3912 /* Fall through */
3913
3914 case R_SPARC_TLS_GD_CALL:
3915 tls_type = GOT_UNKNOWN;
3916 if (h == NULL && local_got_offsets)
3917 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3918 else if (h != NULL)
3919 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3920 if (! bfd_link_pic (info)
3921 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3922 {
3923 Elf_Internal_Rela *rel2;
3924 bfd_vma insn;
3925
3926 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
3927 {
3928 /* GD -> LE */
3929 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3930 continue;
3931 }
3932
3933 /* GD -> IE */
3934 if (rel + 1 < relend
3935 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3936 && rel[1].r_offset == rel->r_offset + 4
3937 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3938 && (((insn = bfd_get_32 (input_bfd,
3939 contents + rel[1].r_offset))
3940 >> 25) & 0x1f) == 8)
3941 {
3942 /* We have
3943 call __tls_get_addr, %tgd_call(foo)
3944 add %reg1, %reg2, %o0, %tgd_add(foo)
3945 and change it into IE:
3946 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3947 add %g7, %o0, %o0, %tie_add(foo).
3948 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3949 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3950 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3951 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3952 contents + rel->r_offset);
3953 bfd_put_32 (output_bfd, 0x9001c008,
3954 contents + rel->r_offset + 4);
3955 rel++;
3956 continue;
3957 }
3958
3959 /* We cannot just overwrite the delay slot instruction,
3960 as it might be what puts the %o0 argument to
3961 __tls_get_addr into place. So we have to transpose
3962 the delay slot with the add we patch in. */
3963 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3964 bfd_put_32 (output_bfd, insn,
3965 contents + rel->r_offset);
3966 bfd_put_32 (output_bfd, 0x9001c008,
3967 contents + rel->r_offset + 4);
3968
3969 rel2 = rel;
3970 while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3971 rel->r_offset + 4))
3972 != NULL)
3973 {
3974 /* If the instruction we moved has a relocation attached to
3975 it, adjust the offset so that it will apply to the correct
3976 instruction. */
3977 rel2->r_offset -= 4;
3978 }
3979 continue;
3980 }
3981
3982 h = (struct elf_link_hash_entry *)
3983 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3984 FALSE, TRUE);
3985 BFD_ASSERT (h != NULL);
3986 r_type = R_SPARC_WPLT30;
3987 howto = _bfd_sparc_elf_howto_table + r_type;
3988 goto r_sparc_wplt30;
3989
3990 case R_SPARC_TLS_GD_ADD:
3991 tls_type = GOT_UNKNOWN;
3992 if (h == NULL && local_got_offsets)
3993 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3994 else if (h != NULL)
3995 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3996 if (! bfd_link_pic (info) || tls_type == GOT_TLS_IE)
3997 {
3998 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3999 changed into IE:
4000 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
4001 or LE:
4002 add %g7, %reg2, %reg3. */
4003 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
4004 if ((h != NULL && h->dynindx != -1) || bfd_link_pic (info))
4005 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
4006 else
4007 relocation = (insn & ~0x7c000) | 0x1c000;
4008 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
4009 }
4010 continue;
4011
4012 case R_SPARC_TLS_LDM_ADD:
4013 if (! bfd_link_pic (info))
4014 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
4015 continue;
4016
4017 case R_SPARC_TLS_LDO_ADD:
4018 if (! bfd_link_pic (info))
4019 {
4020 /* Change rs1 into %g7. */
4021 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
4022 insn = (insn & ~0x7c000) | 0x1c000;
4023 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
4024 }
4025 continue;
4026
4027 case R_SPARC_TLS_IE_LD:
4028 case R_SPARC_TLS_IE_LDX:
4029 if (! bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
4030 {
4031 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
4032 int rs2 = insn & 0x1f;
4033 int rd = (insn >> 25) & 0x1f;
4034
4035 if (rs2 == rd)
4036 relocation = SPARC_NOP;
4037 else
4038 relocation = 0x80100000 | (insn & 0x3e00001f);
4039 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
4040 }
4041 continue;
4042
4043 case R_SPARC_TLS_IE_ADD:
4044 /* Totally useless relocation. */
4045 continue;
4046
4047 case R_SPARC_TLS_DTPOFF32:
4048 case R_SPARC_TLS_DTPOFF64:
4049 relocation -= dtpoff_base (info);
4050 break;
4051
4052 default:
4053 break;
4054 }
4055
4056 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
4057 because such sections are not SEC_ALLOC and thus ld.so will
4058 not process them. */
4059 if (unresolved_reloc
4060 && !((input_section->flags & SEC_DEBUGGING) != 0
4061 && h->def_dynamic)
4062 && _bfd_elf_section_offset (output_bfd, info, input_section,
4063 rel->r_offset) != (bfd_vma) -1)
4064 _bfd_error_handler
4065 /* xgettext:c-format */
4066 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
4067 input_bfd,
4068 input_section,
4069 (long) rel->r_offset,
4070 howto->name,
4071 h->root.root.string);
4072
4073 r = bfd_reloc_continue;
4074 if (r_type == R_SPARC_OLO10)
4075 {
4076 bfd_vma x;
4077
4078 if (! ABI_64_P (output_bfd))
4079 abort ();
4080
4081 relocation += rel->r_addend;
4082 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
4083
4084 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4085 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
4086 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4087
4088 r = bfd_check_overflow (howto->complain_on_overflow,
4089 howto->bitsize, howto->rightshift,
4090 bfd_arch_bits_per_address (input_bfd),
4091 relocation);
4092 }
4093 else if (r_type == R_SPARC_WDISP16)
4094 {
4095 bfd_vma x;
4096
4097 relocation += rel->r_addend;
4098 relocation -= (input_section->output_section->vma
4099 + input_section->output_offset);
4100 relocation -= rel->r_offset;
4101
4102 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4103 x |= ((((relocation >> 2) & 0xc000) << 6)
4104 | ((relocation >> 2) & 0x3fff));
4105 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4106
4107 r = bfd_check_overflow (howto->complain_on_overflow,
4108 howto->bitsize, howto->rightshift,
4109 bfd_arch_bits_per_address (input_bfd),
4110 relocation);
4111 }
4112 else if (r_type == R_SPARC_WDISP10)
4113 {
4114 bfd_vma x;
4115
4116 relocation += rel->r_addend;
4117 relocation -= (input_section->output_section->vma
4118 + input_section->output_offset);
4119 relocation -= rel->r_offset;
4120
4121 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4122 x |= ((((relocation >> 2) & 0x300) << 11)
4123 | (((relocation >> 2) & 0xff) << 5));
4124 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4125
4126 r = bfd_check_overflow (howto->complain_on_overflow,
4127 howto->bitsize, howto->rightshift,
4128 bfd_arch_bits_per_address (input_bfd),
4129 relocation);
4130 }
4131 else if (r_type == R_SPARC_REV32)
4132 {
4133 bfd_vma x;
4134
4135 relocation = relocation + rel->r_addend;
4136
4137 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4138 x = x + relocation;
4139 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
4140 r = bfd_reloc_ok;
4141 }
4142 else if (r_type == R_SPARC_TLS_LDO_HIX22
4143 || r_type == R_SPARC_TLS_LE_HIX22)
4144 {
4145 bfd_vma x;
4146
4147 relocation += rel->r_addend;
4148 if (r_type == R_SPARC_TLS_LE_HIX22)
4149 relocation ^= MINUS_ONE;
4150
4151 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4152 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4153 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4154 r = bfd_reloc_ok;
4155 }
4156 else if (r_type == R_SPARC_TLS_LDO_LOX10
4157 || r_type == R_SPARC_TLS_LE_LOX10)
4158 {
4159 bfd_vma x;
4160
4161 relocation += rel->r_addend;
4162 relocation &= 0x3ff;
4163 if (r_type == R_SPARC_TLS_LE_LOX10)
4164 relocation |= 0x1c00;
4165
4166 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4167 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4168 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4169
4170 r = bfd_reloc_ok;
4171 }
4172 else if (r_type == R_SPARC_HIX22
4173 || r_type == R_SPARC_GOTDATA_HIX22
4174 || r_type == R_SPARC_GOTDATA_OP_HIX22)
4175 {
4176 bfd_vma x;
4177
4178 relocation += rel->r_addend;
4179 if (r_type == R_SPARC_HIX22
4180 || (bfd_signed_vma) relocation < 0)
4181 relocation = relocation ^ MINUS_ONE;
4182
4183 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4184 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4185 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4186
4187 r = bfd_check_overflow (howto->complain_on_overflow,
4188 howto->bitsize, howto->rightshift,
4189 bfd_arch_bits_per_address (input_bfd),
4190 relocation);
4191 }
4192 else if (r_type == R_SPARC_LOX10
4193 || r_type == R_SPARC_GOTDATA_LOX10
4194 || r_type == R_SPARC_GOTDATA_OP_LOX10)
4195 {
4196 bfd_vma x;
4197
4198 relocation += rel->r_addend;
4199 if (r_type == R_SPARC_LOX10
4200 || (bfd_signed_vma) relocation < 0)
4201 relocation = (relocation & 0x3ff) | 0x1c00;
4202 else
4203 relocation = (relocation & 0x3ff);
4204
4205 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4206 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4207 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4208
4209 r = bfd_reloc_ok;
4210 }
4211 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
4212 && sec_do_relax (input_section)
4213 && rel->r_offset + 4 < input_section->size)
4214 {
4215 #define G0 0
4216 #define O7 15
4217 #define XCC (2 << 20)
4218 #define COND(x) (((x)&0xf)<<25)
4219 #define CONDA COND(0x8)
4220 #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
4221 #define INSN_BA (F2(0,2) | CONDA)
4222 #define INSN_OR F3(2, 0x2, 0)
4223 #define INSN_NOP F2(0,4)
4224
4225 bfd_vma x, y;
4226
4227 /* If the instruction is a call with either:
4228 restore
4229 arithmetic instruction with rd == %o7
4230 where rs1 != %o7 and rs2 if it is register != %o7
4231 then we can optimize if the call destination is near
4232 by changing the call into a branch always. */
4233 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4234 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
4235 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
4236 {
4237 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
4238 || ((y & OP3(0x28)) == 0 /* arithmetic */
4239 && (y & RD(~0)) == RD(O7)))
4240 && (y & RS1(~0)) != RS1(O7)
4241 && ((y & F3I(~0))
4242 || (y & RS2(~0)) != RS2(O7)))
4243 {
4244 bfd_vma reloc;
4245
4246 reloc = relocation + rel->r_addend - rel->r_offset;
4247 reloc -= (input_section->output_section->vma
4248 + input_section->output_offset);
4249
4250 /* Ensure the branch fits into simm22. */
4251 if ((reloc & 3) == 0
4252 && ((reloc & ~(bfd_vma)0x7fffff) == 0
4253 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4254 {
4255 reloc >>= 2;
4256
4257 /* Check whether it fits into simm19. */
4258 if (((reloc & 0x3c0000) == 0
4259 || (reloc & 0x3c0000) == 0x3c0000)
4260 && (ABI_64_P (output_bfd)
4261 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4262 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4263 else
4264 x = INSN_BA | (reloc & 0x3fffff); /* ba */
4265 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4266 r = bfd_reloc_ok;
4267 if (rel->r_offset >= 4
4268 && (y & (0xffffffff ^ RS1(~0)))
4269 == (INSN_OR | RD(O7) | RS2(G0)))
4270 {
4271 bfd_vma z;
4272 unsigned int reg;
4273
4274 z = bfd_get_32 (input_bfd,
4275 contents + rel->r_offset - 4);
4276 if ((z & (0xffffffff ^ RD(~0)))
4277 != (INSN_OR | RS1(O7) | RS2(G0)))
4278 continue;
4279
4280 /* The sequence was
4281 or %o7, %g0, %rN
4282 call foo
4283 or %rN, %g0, %o7
4284
4285 If call foo was replaced with ba, replace
4286 or %rN, %g0, %o7 with nop. */
4287
4288 reg = (y & RS1(~0)) >> 14;
4289 if (reg != ((z & RD(~0)) >> 25)
4290 || reg == G0 || reg == O7)
4291 continue;
4292
4293 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4294 contents + rel->r_offset + 4);
4295 }
4296
4297 }
4298 }
4299 }
4300 }
4301
4302 if (r == bfd_reloc_continue)
4303 {
4304 do_relocation:
4305 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4306 contents, rel->r_offset,
4307 relocation, rel->r_addend);
4308 }
4309 if (r != bfd_reloc_ok)
4310 {
4311 switch (r)
4312 {
4313 default:
4314 case bfd_reloc_outofrange:
4315 abort ();
4316 case bfd_reloc_overflow:
4317 {
4318 const char *name;
4319
4320 /* The Solaris native linker silently disregards overflows.
4321 We don't, but this breaks stabs debugging info, whose
4322 relocations are only 32-bits wide. Ignore overflows in
4323 this case and also for discarded entries. */
4324 if ((r_type == R_SPARC_32
4325 || r_type == R_SPARC_UA32
4326 || r_type == R_SPARC_DISP32)
4327 && (((input_section->flags & SEC_DEBUGGING) != 0
4328 && strcmp (bfd_section_name (input_bfd,
4329 input_section),
4330 ".stab") == 0)
4331 || _bfd_elf_section_offset (output_bfd, info,
4332 input_section,
4333 rel->r_offset)
4334 == (bfd_vma)-1))
4335 break;
4336
4337 if (h != NULL)
4338 {
4339 /* Assume this is a call protected by other code that
4340 detect the symbol is undefined. If this is the case,
4341 we can safely ignore the overflow. If not, the
4342 program is hosed anyway, and a little warning isn't
4343 going to help. */
4344 if (h->root.type == bfd_link_hash_undefweak
4345 && howto->pc_relative)
4346 break;
4347
4348 name = NULL;
4349 }
4350 else
4351 {
4352 name = bfd_elf_string_from_elf_section (input_bfd,
4353 symtab_hdr->sh_link,
4354 sym->st_name);
4355 if (name == NULL)
4356 return FALSE;
4357 if (*name == '\0')
4358 name = bfd_section_name (input_bfd, sec);
4359 }
4360 (*info->callbacks->reloc_overflow)
4361 (info, (h ? &h->root : NULL), name, howto->name,
4362 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4363 }
4364 break;
4365 }
4366 }
4367 }
4368
4369 return TRUE;
4370 }
4371
4372 /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4373 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4374 is the offset of the associated .got.plt entry from
4375 _GLOBAL_OFFSET_TABLE_. */
4376
4377 static void
4378 sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4379 bfd_vma plt_offset, bfd_vma plt_index,
4380 bfd_vma got_offset)
4381 {
4382 bfd_vma got_base;
4383 const bfd_vma *plt_entry;
4384 struct _bfd_sparc_elf_link_hash_table *htab;
4385 bfd_byte *loc;
4386 Elf_Internal_Rela rela;
4387
4388 htab = _bfd_sparc_elf_hash_table (info);
4389 BFD_ASSERT (htab != NULL);
4390
4391 if (bfd_link_pic (info))
4392 {
4393 plt_entry = sparc_vxworks_shared_plt_entry;
4394 got_base = 0;
4395 }
4396 else
4397 {
4398 plt_entry = sparc_vxworks_exec_plt_entry;
4399 got_base = (htab->elf.hgot->root.u.def.value
4400 + htab->elf.hgot->root.u.def.section->output_offset
4401 + htab->elf.hgot->root.u.def.section->output_section->vma);
4402 }
4403
4404 /* Fill in the entry in the procedure linkage table. */
4405 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
4406 htab->elf.splt->contents + plt_offset);
4407 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
4408 htab->elf.splt->contents + plt_offset + 4);
4409 bfd_put_32 (output_bfd, plt_entry[2],
4410 htab->elf.splt->contents + plt_offset + 8);
4411 bfd_put_32 (output_bfd, plt_entry[3],
4412 htab->elf.splt->contents + plt_offset + 12);
4413 bfd_put_32 (output_bfd, plt_entry[4],
4414 htab->elf.splt->contents + plt_offset + 16);
4415 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
4416 htab->elf.splt->contents + plt_offset + 20);
4417 /* PC-relative displacement for a branch to the start of
4418 the PLT section. */
4419 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4420 & 0x003fffff),
4421 htab->elf.splt->contents + plt_offset + 24);
4422 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
4423 htab->elf.splt->contents + plt_offset + 28);
4424
4425 /* Fill in the .got.plt entry, pointing initially at the
4426 second half of the PLT entry. */
4427 BFD_ASSERT (htab->elf.sgotplt != NULL);
4428 bfd_put_32 (output_bfd,
4429 htab->elf.splt->output_section->vma
4430 + htab->elf.splt->output_offset
4431 + plt_offset + 20,
4432 htab->elf.sgotplt->contents + got_offset);
4433
4434 /* Add relocations to .rela.plt.unloaded. */
4435 if (!bfd_link_pic (info))
4436 {
4437 loc = (htab->srelplt2->contents
4438 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4439
4440 /* Relocate the initial sethi. */
4441 rela.r_offset = (htab->elf.splt->output_section->vma
4442 + htab->elf.splt->output_offset
4443 + plt_offset);
4444 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4445 rela.r_addend = got_offset;
4446 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4447 loc += sizeof (Elf32_External_Rela);
4448
4449 /* Likewise the following or. */
4450 rela.r_offset += 4;
4451 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4452 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4453 loc += sizeof (Elf32_External_Rela);
4454
4455 /* Relocate the .got.plt entry. */
4456 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4457 + htab->elf.sgotplt->output_offset
4458 + got_offset);
4459 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4460 rela.r_addend = plt_offset + 20;
4461 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4462 }
4463 }
4464
4465 /* Finish up dynamic symbol handling. We set the contents of various
4466 dynamic sections here. */
4467
4468 bfd_boolean
4469 _bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4470 struct bfd_link_info *info,
4471 struct elf_link_hash_entry *h,
4472 Elf_Internal_Sym *sym)
4473 {
4474 struct _bfd_sparc_elf_link_hash_table *htab;
4475 const struct elf_backend_data *bed;
4476 struct _bfd_sparc_elf_link_hash_entry *eh;
4477 bfd_boolean local_undefweak;
4478
4479 htab = _bfd_sparc_elf_hash_table (info);
4480 BFD_ASSERT (htab != NULL);
4481 bed = get_elf_backend_data (output_bfd);
4482
4483 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4484
4485 /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4486 resolved undefined weak symbols in executable so that their
4487 references have value 0 at run-time. */
4488 local_undefweak = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
4489
4490 if (h->plt.offset != (bfd_vma) -1)
4491 {
4492 asection *splt;
4493 asection *srela;
4494 Elf_Internal_Rela rela;
4495 bfd_byte *loc;
4496 bfd_vma r_offset, got_offset;
4497 int rela_index;
4498
4499 /* When building a static executable, use .iplt and
4500 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4501 if (htab->elf.splt != NULL)
4502 {
4503 splt = htab->elf.splt;
4504 srela = htab->elf.srelplt;
4505 }
4506 else
4507 {
4508 splt = htab->elf.iplt;
4509 srela = htab->elf.irelplt;
4510 }
4511
4512 if (splt == NULL || srela == NULL)
4513 abort ();
4514
4515 /* Fill in the entry in the .rela.plt section. */
4516 if (htab->is_vxworks)
4517 {
4518 /* Work out the index of this PLT entry. */
4519 rela_index = ((h->plt.offset - htab->plt_header_size)
4520 / htab->plt_entry_size);
4521
4522 /* Calculate the offset of the associated .got.plt entry.
4523 The first three entries are reserved. */
4524 got_offset = (rela_index + 3) * 4;
4525
4526 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4527 rela_index, got_offset);
4528
4529
4530 /* On VxWorks, the relocation points to the .got.plt entry,
4531 not the .plt entry. */
4532 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4533 + htab->elf.sgotplt->output_offset
4534 + got_offset);
4535 rela.r_addend = 0;
4536 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4537 R_SPARC_JMP_SLOT);
4538 }
4539 else
4540 {
4541 bfd_boolean ifunc = FALSE;
4542
4543 /* Fill in the entry in the procedure linkage table. */
4544 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4545 h->plt.offset, splt->size,
4546 &r_offset);
4547
4548 if (h == NULL
4549 || h->dynindx == -1
4550 || ((bfd_link_executable (info)
4551 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4552 && h->def_regular
4553 && h->type == STT_GNU_IFUNC))
4554 {
4555 ifunc = TRUE;
4556 BFD_ASSERT (h == NULL
4557 || (h->type == STT_GNU_IFUNC
4558 && h->def_regular
4559 && (h->root.type == bfd_link_hash_defined
4560 || h->root.type == bfd_link_hash_defweak)));
4561 }
4562
4563 rela.r_offset = r_offset
4564 + (splt->output_section->vma + splt->output_offset);
4565 if (ABI_64_P (output_bfd)
4566 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
4567 {
4568 if (ifunc)
4569 {
4570 rela.r_addend = (h->root.u.def.section->output_section->vma
4571 + h->root.u.def.section->output_offset
4572 + h->root.u.def.value);
4573 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4574 R_SPARC_IRELATIVE);
4575 }
4576 else
4577 {
4578 rela.r_addend = (-(h->plt.offset + 4)
4579 - splt->output_section->vma
4580 - splt->output_offset);
4581 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4582 R_SPARC_JMP_SLOT);
4583 }
4584 }
4585 else
4586 {
4587 if (ifunc)
4588 {
4589 rela.r_addend = (h->root.u.def.section->output_section->vma
4590 + h->root.u.def.section->output_offset
4591 + h->root.u.def.value);
4592 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4593 R_SPARC_JMP_IREL);
4594 }
4595 else
4596 {
4597 rela.r_addend = 0;
4598 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4599 R_SPARC_JMP_SLOT);
4600 }
4601 }
4602 }
4603
4604 /* Adjust for the first 4 reserved elements in the .plt section
4605 when setting the offset in the .rela.plt section.
4606 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4607 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4608
4609 loc = srela->contents;
4610 loc += rela_index * bed->s->sizeof_rela;
4611 bed->s->swap_reloca_out (output_bfd, &rela, loc);
4612
4613 if (!local_undefweak
4614 && !h->def_regular)
4615 {
4616 /* Mark the symbol as undefined, rather than as defined in
4617 the .plt section. Leave the value alone. */
4618 sym->st_shndx = SHN_UNDEF;
4619 /* If the symbol is weak, we do need to clear the value.
4620 Otherwise, the PLT entry would provide a definition for
4621 the symbol even if the symbol wasn't defined anywhere,
4622 and so the symbol would never be NULL. */
4623 if (!h->ref_regular_nonweak)
4624 sym->st_value = 0;
4625 }
4626 }
4627
4628 /* Don't generate dynamic GOT relocation against undefined weak
4629 symbol in executable. */
4630 if (h->got.offset != (bfd_vma) -1
4631 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4632 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
4633 && !local_undefweak)
4634 {
4635 asection *sgot;
4636 asection *srela;
4637 Elf_Internal_Rela rela;
4638
4639 /* This symbol has an entry in the GOT. Set it up. */
4640
4641 sgot = htab->elf.sgot;
4642 srela = htab->elf.srelgot;
4643 BFD_ASSERT (sgot != NULL && srela != NULL);
4644
4645 rela.r_offset = (sgot->output_section->vma
4646 + sgot->output_offset
4647 + (h->got.offset &~ (bfd_vma) 1));
4648
4649 /* If this is a -Bsymbolic link, and the symbol is defined
4650 locally, we just want to emit a RELATIVE reloc. Likewise if
4651 the symbol was forced to be local because of a version file.
4652 The entry in the global offset table will already have been
4653 initialized in the relocate_section function. */
4654 if (! bfd_link_pic (info)
4655 && h->type == STT_GNU_IFUNC
4656 && h->def_regular)
4657 {
4658 asection *plt;
4659
4660 /* We load the GOT entry with the PLT entry. */
4661 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4662 SPARC_ELF_PUT_WORD (htab, output_bfd,
4663 (plt->output_section->vma
4664 + plt->output_offset + h->plt.offset),
4665 htab->elf.sgot->contents
4666 + (h->got.offset & ~(bfd_vma) 1));
4667 return TRUE;
4668 }
4669 else if (bfd_link_pic (info)
4670 && SYMBOL_REFERENCES_LOCAL (info, h))
4671 {
4672 asection *sec = h->root.u.def.section;
4673 if (h->type == STT_GNU_IFUNC)
4674 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4675 else
4676 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
4677 rela.r_addend = (h->root.u.def.value
4678 + sec->output_section->vma
4679 + sec->output_offset);
4680 }
4681 else
4682 {
4683 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4684 rela.r_addend = 0;
4685 }
4686
4687 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4688 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4689 sparc_elf_append_rela (output_bfd, srela, &rela);
4690 }
4691
4692 if (h->needs_copy)
4693 {
4694 asection *s;
4695 Elf_Internal_Rela rela;
4696
4697 /* This symbols needs a copy reloc. Set it up. */
4698 BFD_ASSERT (h->dynindx != -1);
4699
4700 rela.r_offset = (h->root.u.def.value
4701 + h->root.u.def.section->output_section->vma
4702 + h->root.u.def.section->output_offset);
4703 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4704 rela.r_addend = 0;
4705 if (h->root.u.def.section == htab->elf.sdynrelro)
4706 s = htab->elf.sreldynrelro;
4707 else
4708 s = htab->elf.srelbss;
4709 sparc_elf_append_rela (output_bfd, s, &rela);
4710 }
4711
4712 /* Mark some specially defined symbols as absolute. On VxWorks,
4713 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4714 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
4715 if (sym != NULL
4716 && (h == htab->elf.hdynamic
4717 || (!htab->is_vxworks
4718 && (h == htab->elf.hgot || h == htab->elf.hplt))))
4719 sym->st_shndx = SHN_ABS;
4720
4721 return TRUE;
4722 }
4723
4724 /* Finish up the dynamic sections. */
4725
4726 static bfd_boolean
4727 sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4728 bfd *dynobj, asection *sdyn,
4729 asection *splt ATTRIBUTE_UNUSED)
4730 {
4731 struct _bfd_sparc_elf_link_hash_table *htab;
4732 const struct elf_backend_data *bed;
4733 bfd_byte *dyncon, *dynconend;
4734 size_t dynsize;
4735 int stt_regidx = -1;
4736 bfd_boolean abi_64_p;
4737
4738 htab = _bfd_sparc_elf_hash_table (info);
4739 BFD_ASSERT (htab != NULL);
4740 bed = get_elf_backend_data (output_bfd);
4741 dynsize = bed->s->sizeof_dyn;
4742 dynconend = sdyn->contents + sdyn->size;
4743 abi_64_p = ABI_64_P (output_bfd);
4744 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4745 {
4746 Elf_Internal_Dyn dyn;
4747 bfd_boolean size;
4748
4749 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4750
4751 if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
4752 {
4753 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4754 not to the start of the PLT. */
4755 if (htab->elf.sgotplt)
4756 {
4757 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4758 + htab->elf.sgotplt->output_offset);
4759 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4760 }
4761 }
4762 else if (htab->is_vxworks
4763 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4764 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4765 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4766 {
4767 if (stt_regidx == -1)
4768 {
4769 stt_regidx =
4770 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4771 if (stt_regidx == -1)
4772 return FALSE;
4773 }
4774 dyn.d_un.d_val = stt_regidx++;
4775 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4776 }
4777 else
4778 {
4779 asection *s;
4780
4781 switch (dyn.d_tag)
4782 {
4783 case DT_PLTGOT:
4784 s = htab->elf.splt;
4785 size = FALSE;
4786 break;
4787 case DT_PLTRELSZ:
4788 s = htab->elf.srelplt;
4789 size = TRUE;
4790 break;
4791 case DT_JMPREL:
4792 s = htab->elf.srelplt;
4793 size = FALSE;
4794 break;
4795 default:
4796 continue;
4797 }
4798
4799 if (s == NULL)
4800 dyn.d_un.d_val = 0;
4801 else
4802 {
4803 if (!size)
4804 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4805 else
4806 dyn.d_un.d_val = s->size;
4807 }
4808 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4809 }
4810 }
4811 return TRUE;
4812 }
4813
4814 /* Install the first PLT entry in a VxWorks executable and make sure that
4815 .rela.plt.unloaded relocations have the correct symbol indexes. */
4816
4817 static void
4818 sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4819 {
4820 struct _bfd_sparc_elf_link_hash_table *htab;
4821 Elf_Internal_Rela rela;
4822 bfd_vma got_base;
4823 bfd_byte *loc;
4824
4825 htab = _bfd_sparc_elf_hash_table (info);
4826 BFD_ASSERT (htab != NULL);
4827
4828 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4829 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4830 + htab->elf.hgot->root.u.def.section->output_offset
4831 + htab->elf.hgot->root.u.def.value);
4832
4833 /* Install the initial PLT entry. */
4834 bfd_put_32 (output_bfd,
4835 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
4836 htab->elf.splt->contents);
4837 bfd_put_32 (output_bfd,
4838 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
4839 htab->elf.splt->contents + 4);
4840 bfd_put_32 (output_bfd,
4841 sparc_vxworks_exec_plt0_entry[2],
4842 htab->elf.splt->contents + 8);
4843 bfd_put_32 (output_bfd,
4844 sparc_vxworks_exec_plt0_entry[3],
4845 htab->elf.splt->contents + 12);
4846 bfd_put_32 (output_bfd,
4847 sparc_vxworks_exec_plt0_entry[4],
4848 htab->elf.splt->contents + 16);
4849
4850 loc = htab->srelplt2->contents;
4851
4852 /* Add an unloaded relocation for the initial entry's "sethi". */
4853 rela.r_offset = (htab->elf.splt->output_section->vma
4854 + htab->elf.splt->output_offset);
4855 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4856 rela.r_addend = 8;
4857 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4858 loc += sizeof (Elf32_External_Rela);
4859
4860 /* Likewise the following "or". */
4861 rela.r_offset += 4;
4862 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4863 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4864 loc += sizeof (Elf32_External_Rela);
4865
4866 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4867 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4868 in which symbols were output. */
4869 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4870 {
4871 Elf_Internal_Rela rel;
4872
4873 /* The entry's initial "sethi" (against _G_O_T_). */
4874 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4875 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4876 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4877 loc += sizeof (Elf32_External_Rela);
4878
4879 /* The following "or" (also against _G_O_T_). */
4880 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4881 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4882 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4883 loc += sizeof (Elf32_External_Rela);
4884
4885 /* The .got.plt entry (against _P_L_T_). */
4886 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4887 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4888 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4889 loc += sizeof (Elf32_External_Rela);
4890 }
4891 }
4892
4893 /* Install the first PLT entry in a VxWorks shared object. */
4894
4895 static void
4896 sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4897 {
4898 struct _bfd_sparc_elf_link_hash_table *htab;
4899 unsigned int i;
4900
4901 htab = _bfd_sparc_elf_hash_table (info);
4902 BFD_ASSERT (htab != NULL);
4903
4904 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4905 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
4906 htab->elf.splt->contents + i * 4);
4907 }
4908
4909 /* Finish up local dynamic symbol handling. We set the contents of
4910 various dynamic sections here. */
4911
4912 static bfd_boolean
4913 finish_local_dynamic_symbol (void **slot, void *inf)
4914 {
4915 struct elf_link_hash_entry *h
4916 = (struct elf_link_hash_entry *) *slot;
4917 struct bfd_link_info *info
4918 = (struct bfd_link_info *) inf;
4919
4920 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4921 h, NULL);
4922 }
4923
4924 /* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4925 here since undefined weak symbol may not be dynamic and may not be
4926 called for _bfd_sparc_elf_finish_dynamic_symbol. */
4927
4928 static bfd_boolean
4929 pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
4930 void *inf)
4931 {
4932 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4933 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4934
4935 if (h->root.type != bfd_link_hash_undefweak
4936 || h->dynindx != -1)
4937 return TRUE;
4938
4939 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4940 h, NULL);
4941 }
4942
4943 bfd_boolean
4944 _bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4945 {
4946 bfd *dynobj;
4947 asection *sdyn;
4948 struct _bfd_sparc_elf_link_hash_table *htab;
4949
4950 htab = _bfd_sparc_elf_hash_table (info);
4951 BFD_ASSERT (htab != NULL);
4952 dynobj = htab->elf.dynobj;
4953
4954 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4955
4956 if (elf_hash_table (info)->dynamic_sections_created)
4957 {
4958 asection *splt;
4959
4960 splt = htab->elf.splt;
4961 BFD_ASSERT (splt != NULL && sdyn != NULL);
4962
4963 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4964 return FALSE;
4965
4966 /* Initialize the contents of the .plt section. */
4967 if (splt->size > 0)
4968 {
4969 if (htab->is_vxworks)
4970 {
4971 if (bfd_link_pic (info))
4972 sparc_vxworks_finish_shared_plt (output_bfd, info);
4973 else
4974 sparc_vxworks_finish_exec_plt (output_bfd, info);
4975 }
4976 else
4977 {
4978 memset (splt->contents, 0, htab->plt_header_size);
4979 if (!ABI_64_P (output_bfd))
4980 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4981 splt->contents + splt->size - 4);
4982 }
4983 }
4984
4985 if (elf_section_data (splt->output_section) != NULL)
4986 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4987 = ((htab->is_vxworks || !ABI_64_P (output_bfd))
4988 ? 0 : htab->plt_entry_size);
4989 }
4990
4991 /* Set the first entry in the global offset table to the address of
4992 the dynamic section. */
4993 if (htab->elf.sgot && htab->elf.sgot->size > 0)
4994 {
4995 bfd_vma val = (sdyn ?
4996 sdyn->output_section->vma + sdyn->output_offset :
4997 0);
4998
4999 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
5000 }
5001
5002 if (htab->elf.sgot)
5003 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
5004 SPARC_ELF_WORD_BYTES (htab);
5005
5006 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
5007 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
5008
5009 /* Fill PLT entries for undefined weak symbols in PIE. */
5010 if (bfd_link_pie (info))
5011 bfd_hash_traverse (&info->hash->table,
5012 pie_finish_undefweak_symbol,
5013 info);
5014 return TRUE;
5015 }
5016
5017 \f
5018 /* Set the right machine number for a SPARC ELF file. */
5019
5020 bfd_boolean
5021 _bfd_sparc_elf_object_p (bfd *abfd)
5022 {
5023 obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
5024 obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
5025 obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
5026
5027 unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
5028 unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
5029 | ELF_SPARC_HWCAP_VIS3
5030 | ELF_SPARC_HWCAP_HPC);
5031 unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
5032 | ELF_SPARC_HWCAP_DES
5033 | ELF_SPARC_HWCAP_KASUMI
5034 | ELF_SPARC_HWCAP_CAMELLIA
5035 | ELF_SPARC_HWCAP_MD5
5036 | ELF_SPARC_HWCAP_SHA1
5037 | ELF_SPARC_HWCAP_SHA256
5038 | ELF_SPARC_HWCAP_SHA512
5039 | ELF_SPARC_HWCAP_MPMUL
5040 | ELF_SPARC_HWCAP_MONT
5041 | ELF_SPARC_HWCAP_CRC32C
5042 | ELF_SPARC_HWCAP_CBCOND
5043 | ELF_SPARC_HWCAP_PAUSE);
5044 unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
5045 | ELF_SPARC_HWCAP_IMA);
5046 unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
5047 | ELF_SPARC_HWCAP2_MWAIT
5048 | ELF_SPARC_HWCAP2_XMPMUL
5049 | ELF_SPARC_HWCAP2_XMONT);
5050
5051 if (ABI_64_P (abfd))
5052 {
5053 unsigned long mach = bfd_mach_sparc_v9;
5054
5055 if (hwcaps2->i & v9m_hwcaps2_mask)
5056 mach = bfd_mach_sparc_v9m;
5057 else if (hwcaps->i & v9v_hwcaps_mask)
5058 mach = bfd_mach_sparc_v9v;
5059 else if (hwcaps->i & v9e_hwcaps_mask)
5060 mach = bfd_mach_sparc_v9e;
5061 else if (hwcaps->i & v9d_hwcaps_mask)
5062 mach = bfd_mach_sparc_v9d;
5063 else if (hwcaps->i & v9c_hwcaps_mask)
5064 mach = bfd_mach_sparc_v9c;
5065 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
5066 mach = bfd_mach_sparc_v9b;
5067 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
5068 mach = bfd_mach_sparc_v9a;
5069 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
5070 }
5071 else
5072 {
5073 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
5074 {
5075 if (hwcaps2->i & v9m_hwcaps2_mask)
5076 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5077 bfd_mach_sparc_v8plusm);
5078 else if (hwcaps->i & v9v_hwcaps_mask)
5079 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5080 bfd_mach_sparc_v8plusv);
5081 else if (hwcaps->i & v9e_hwcaps_mask)
5082 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5083 bfd_mach_sparc_v8pluse);
5084 else if (hwcaps->i & v9d_hwcaps_mask)
5085 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5086 bfd_mach_sparc_v8plusd);
5087 else if (hwcaps->i & v9c_hwcaps_mask)
5088 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5089 bfd_mach_sparc_v8plusc);
5090 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
5091 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5092 bfd_mach_sparc_v8plusb);
5093 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
5094 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5095 bfd_mach_sparc_v8plusa);
5096 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
5097 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5098 bfd_mach_sparc_v8plus);
5099 else
5100 return FALSE;
5101 }
5102 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
5103 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5104 bfd_mach_sparc_sparclite_le);
5105 else
5106 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
5107 }
5108 }
5109
5110 /* Return address for Ith PLT stub in section PLT, for relocation REL
5111 or (bfd_vma) -1 if it should not be included. */
5112
5113 bfd_vma
5114 _bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
5115 {
5116 if (ABI_64_P (plt->owner))
5117 {
5118 bfd_vma j;
5119
5120 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
5121 if (i < PLT64_LARGE_THRESHOLD)
5122 return plt->vma + i * PLT64_ENTRY_SIZE;
5123
5124 j = (i - PLT64_LARGE_THRESHOLD) % 160;
5125 i -= j;
5126 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
5127 }
5128 else
5129 return rel->address;
5130 }
5131
5132 /* Merge backend specific data from an object file to the output
5133 object file when linking. */
5134
5135 bfd_boolean
5136 _bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
5137 {
5138 bfd *obfd = info->output_bfd;
5139 obj_attribute *in_attr, *in_attrs;
5140 obj_attribute *out_attr, *out_attrs;
5141
5142 if (!elf_known_obj_attributes_proc (obfd)[0].i)
5143 {
5144 /* This is the first object. Copy the attributes. */
5145 _bfd_elf_copy_obj_attributes (ibfd, obfd);
5146
5147 /* Use the Tag_null value to indicate the attributes have been
5148 initialized. */
5149 elf_known_obj_attributes_proc (obfd)[0].i = 1;
5150
5151 return TRUE;
5152 }
5153
5154 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
5155 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
5156
5157 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
5158 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
5159
5160 out_attr->i |= in_attr->i;
5161 out_attr->type = 1;
5162
5163 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
5164 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
5165
5166 out_attr->i |= in_attr->i;
5167 out_attr->type = 1;
5168
5169 /* Merge Tag_compatibility attributes and any common GNU ones. */
5170 _bfd_elf_merge_object_attributes (ibfd, info);
5171
5172 return TRUE;
5173 }
GDB Binutils - Deliverables
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