dyn_relocs tidy
[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 /* Is an undefined weak symbol resolved to 0 ?
667 Reference to an undefined weak symbol is resolved to 0 when
668 building an executable if it isn't dynamic and
669 1. Has non-GOT/non-PLT relocations in text section.
670 Or
671 2. Has no GOT/PLT relocation. */
672 #define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
673 ((EH)->elf.root.type == bfd_link_hash_undefweak \
674 && bfd_link_executable (INFO) \
675 && (_bfd_sparc_elf_hash_table (INFO)->interp == NULL \
676 || !(EH)->has_got_reloc \
677 || (EH)->has_non_got_reloc \
678 || !(INFO)->dynamic_undefined_weak))
679
680 /* SPARC ELF linker hash entry. */
681
682 struct _bfd_sparc_elf_link_hash_entry
683 {
684 struct elf_link_hash_entry elf;
685
686 /* Track dynamic relocs copied for this symbol. */
687 struct elf_dyn_relocs *dyn_relocs;
688
689 #define GOT_UNKNOWN 0
690 #define GOT_NORMAL 1
691 #define GOT_TLS_GD 2
692 #define GOT_TLS_IE 3
693 unsigned char tls_type;
694
695 /* Symbol has GOT or PLT relocations. */
696 unsigned int has_got_reloc : 1;
697
698 /* Symbol has non-GOT/non-PLT relocations in text sections. */
699 unsigned int has_non_got_reloc : 1;
700
701 };
702
703 #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
704
705 struct _bfd_sparc_elf_obj_tdata
706 {
707 struct elf_obj_tdata root;
708
709 /* tls_type for each local got entry. */
710 char *local_got_tls_type;
711
712 /* TRUE if TLS GD relocs has been seen for this object. */
713 bfd_boolean has_tlsgd;
714 };
715
716 #define _bfd_sparc_elf_tdata(abfd) \
717 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
718
719 #define _bfd_sparc_elf_local_got_tls_type(abfd) \
720 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
721
722 #define is_sparc_elf(bfd) \
723 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
724 && elf_tdata (bfd) != NULL \
725 && elf_object_id (bfd) == SPARC_ELF_DATA)
726
727 bfd_boolean
728 _bfd_sparc_elf_mkobject (bfd *abfd)
729 {
730 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
731 SPARC_ELF_DATA);
732 }
733
734 static void
735 sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
736 {
737 bfd_put_32 (abfd, val, ptr);
738 }
739
740 static void
741 sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
742 {
743 bfd_put_64 (abfd, val, ptr);
744 }
745
746 static void
747 sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
748 {
749 const struct elf_backend_data *bed;
750 bfd_byte *loc;
751
752 bed = get_elf_backend_data (abfd);
753 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
754 bed->s->swap_reloca_out (abfd, rel, loc);
755 }
756
757 static bfd_vma
758 sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
759 bfd_vma rel_index ATTRIBUTE_UNUSED,
760 bfd_vma type ATTRIBUTE_UNUSED)
761 {
762 return ELF64_R_INFO (rel_index,
763 (in_rel ?
764 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
765 type) : type));
766 }
767
768 static bfd_vma
769 sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
770 bfd_vma rel_index, bfd_vma type)
771 {
772 return ELF32_R_INFO (rel_index, type);
773 }
774
775 static bfd_vma
776 sparc_elf_r_symndx_64 (bfd_vma r_info)
777 {
778 bfd_vma r_symndx = ELF32_R_SYM (r_info);
779 return (r_symndx >> 24);
780 }
781
782 static bfd_vma
783 sparc_elf_r_symndx_32 (bfd_vma r_info)
784 {
785 return ELF32_R_SYM (r_info);
786 }
787
788 /* PLT/GOT stuff */
789
790 #define PLT32_ENTRY_SIZE 12
791 #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
792
793 /* The first four entries in a 32-bit procedure linkage table are reserved,
794 and the initial contents are unimportant (we zero them out).
795 Subsequent entries look like this. See the SVR4 ABI SPARC
796 supplement to see how this works. */
797
798 /* sethi %hi(.-.plt0),%g1. We fill in the address later. */
799 #define PLT32_ENTRY_WORD0 0x03000000
800 /* b,a .plt0. We fill in the offset later. */
801 #define PLT32_ENTRY_WORD1 0x30800000
802 /* nop. */
803 #define PLT32_ENTRY_WORD2 SPARC_NOP
804
805 static int
806 sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
807 bfd_vma max ATTRIBUTE_UNUSED,
808 bfd_vma *r_offset)
809 {
810 bfd_put_32 (output_bfd,
811 PLT32_ENTRY_WORD0 + offset,
812 splt->contents + offset);
813 bfd_put_32 (output_bfd,
814 (PLT32_ENTRY_WORD1
815 + (((- (offset + 4)) >> 2) & 0x3fffff)),
816 splt->contents + offset + 4);
817 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
818 splt->contents + offset + 8);
819
820 *r_offset = offset;
821
822 return offset / PLT32_ENTRY_SIZE - 4;
823 }
824
825 /* Both the headers and the entries are icache aligned. */
826 #define PLT64_ENTRY_SIZE 32
827 #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
828 #define PLT64_LARGE_THRESHOLD 32768
829
830 static int
831 sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
832 bfd_vma max, bfd_vma *r_offset)
833 {
834 unsigned char *entry = splt->contents + offset;
835 const unsigned int nop = SPARC_NOP;
836 int plt_index;
837
838 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
839 {
840 unsigned int sethi, ba;
841
842 *r_offset = offset;
843
844 plt_index = (offset / PLT64_ENTRY_SIZE);
845
846 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
847 ba = 0x30680000
848 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
849
850 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
851 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
852 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
853 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
854 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
855 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
856 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
857 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
858 }
859 else
860 {
861 unsigned char *ptr;
862 unsigned int ldx;
863 int block, last_block, ofs, last_ofs, chunks_this_block;
864 const int insn_chunk_size = (6 * 4);
865 const int ptr_chunk_size = (1 * 8);
866 const int entries_per_block = 160;
867 const int block_size = entries_per_block * (insn_chunk_size
868 + ptr_chunk_size);
869
870 /* Entries 32768 and higher are grouped into blocks of 160.
871 The blocks are further subdivided into 160 sequences of
872 6 instructions and 160 pointers. If a block does not require
873 the full 160 entries, let's say it requires N, then there
874 will be N sequences of 6 instructions and N pointers. */
875
876 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
877 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
878
879 block = offset / block_size;
880 last_block = max / block_size;
881 if (block != last_block)
882 {
883 chunks_this_block = 160;
884 }
885 else
886 {
887 last_ofs = max % block_size;
888 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
889 }
890
891 ofs = offset % block_size;
892
893 plt_index = (PLT64_LARGE_THRESHOLD +
894 (block * 160) +
895 (ofs / insn_chunk_size));
896
897 ptr = splt->contents
898 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
899 + (block * block_size)
900 + (chunks_this_block * insn_chunk_size)
901 + (ofs / insn_chunk_size) * ptr_chunk_size;
902
903 *r_offset = (bfd_vma) (ptr - splt->contents);
904
905 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
906
907 /* mov %o7,%g5
908 call .+8
909 nop
910 ldx [%o7+P],%g1
911 jmpl %o7+%g1,%g1
912 mov %g5,%o7 */
913 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
914 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
915 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
916 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
917 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
918 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
919
920 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
921 }
922
923 return plt_index - 4;
924 }
925
926 /* The format of the first PLT entry in a VxWorks executable. */
927 static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
928 {
929 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
930 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
931 0xc4008000, /* ld [ %g2 ], %g2 */
932 0x81c08000, /* jmp %g2 */
933 0x01000000 /* nop */
934 };
935
936 /* The format of subsequent PLT entries. */
937 static const bfd_vma sparc_vxworks_exec_plt_entry[] =
938 {
939 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
940 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
941 0xc2004000, /* ld [ %g1 ], %g1 */
942 0x81c04000, /* jmp %g1 */
943 0x01000000, /* nop */
944 0x03000000, /* sethi %hi(f@pltindex), %g1 */
945 0x10800000, /* b _PLT_resolve */
946 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
947 };
948
949 /* The format of the first PLT entry in a VxWorks shared object. */
950 static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
951 {
952 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
953 0x81c08000, /* jmp %g2 */
954 0x01000000 /* nop */
955 };
956
957 /* The format of subsequent PLT entries. */
958 static const bfd_vma sparc_vxworks_shared_plt_entry[] =
959 {
960 0x03000000, /* sethi %hi(f@got), %g1 */
961 0x82106000, /* or %g1, %lo(f@got), %g1 */
962 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
963 0x81c04000, /* jmp %g1 */
964 0x01000000, /* nop */
965 0x03000000, /* sethi %hi(f@pltindex), %g1 */
966 0x10800000, /* b _PLT_resolve */
967 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
968 };
969
970 #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
971 htab->put_word(bfd, val, ptr)
972
973 #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
974 htab->r_info(in_rel, index, type)
975
976 #define SPARC_ELF_R_SYMNDX(htab, r_info) \
977 htab->r_symndx(r_info)
978
979 #define SPARC_ELF_WORD_BYTES(htab) \
980 htab->bytes_per_word
981
982 #define SPARC_ELF_RELA_BYTES(htab) \
983 htab->bytes_per_rela
984
985 #define SPARC_ELF_DTPOFF_RELOC(htab) \
986 htab->dtpoff_reloc
987
988 #define SPARC_ELF_DTPMOD_RELOC(htab) \
989 htab->dtpmod_reloc
990
991 #define SPARC_ELF_TPOFF_RELOC(htab) \
992 htab->tpoff_reloc
993
994 #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
995 htab->build_plt_entry (obfd, splt, off, max, r_off)
996
997 /* Create an entry in an SPARC ELF linker hash table. */
998
999 static struct bfd_hash_entry *
1000 link_hash_newfunc (struct bfd_hash_entry *entry,
1001 struct bfd_hash_table *table, const char *string)
1002 {
1003 /* Allocate the structure if it has not already been allocated by a
1004 subclass. */
1005 if (entry == NULL)
1006 {
1007 entry = bfd_hash_allocate (table,
1008 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1009 if (entry == NULL)
1010 return entry;
1011 }
1012
1013 /* Call the allocation method of the superclass. */
1014 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1015 if (entry != NULL)
1016 {
1017 struct _bfd_sparc_elf_link_hash_entry *eh;
1018
1019 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
1020 eh->dyn_relocs = NULL;
1021 eh->tls_type = GOT_UNKNOWN;
1022 eh->has_got_reloc = 0;
1023 eh->has_non_got_reloc = 0;
1024 }
1025
1026 return entry;
1027 }
1028
1029 /* The name of the dynamic interpreter. This is put in the .interp
1030 section. */
1031
1032 #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1033 #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1034
1035 /* Compute a hash of a local hash entry. We use elf_link_hash_entry
1036 for local symbol so that we can handle local STT_GNU_IFUNC symbols
1037 as global symbol. We reuse indx and dynstr_index for local symbol
1038 hash since they aren't used by global symbols in this backend. */
1039
1040 static hashval_t
1041 elf_sparc_local_htab_hash (const void *ptr)
1042 {
1043 struct elf_link_hash_entry *h
1044 = (struct elf_link_hash_entry *) ptr;
1045 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1046 }
1047
1048 /* Compare local hash entries. */
1049
1050 static int
1051 elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1052 {
1053 struct elf_link_hash_entry *h1
1054 = (struct elf_link_hash_entry *) ptr1;
1055 struct elf_link_hash_entry *h2
1056 = (struct elf_link_hash_entry *) ptr2;
1057
1058 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1059 }
1060
1061 /* Find and/or create a hash entry for local symbol. */
1062
1063 static struct elf_link_hash_entry *
1064 elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1065 bfd *abfd, const Elf_Internal_Rela *rel,
1066 bfd_boolean create)
1067 {
1068 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1069 asection *sec = abfd->sections;
1070 unsigned long r_symndx;
1071 hashval_t h;
1072 void **slot;
1073
1074 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1075 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1076
1077 e.elf.indx = sec->id;
1078 e.elf.dynstr_index = r_symndx;
1079 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1080 create ? INSERT : NO_INSERT);
1081
1082 if (!slot)
1083 return NULL;
1084
1085 if (*slot)
1086 {
1087 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1088 return &ret->elf;
1089 }
1090
1091 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1092 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1093 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1094 if (ret)
1095 {
1096 memset (ret, 0, sizeof (*ret));
1097 ret->elf.indx = sec->id;
1098 ret->elf.dynstr_index = r_symndx;
1099 ret->elf.dynindx = -1;
1100 ret->elf.plt.offset = (bfd_vma) -1;
1101 ret->elf.got.offset = (bfd_vma) -1;
1102 *slot = ret;
1103 }
1104 return &ret->elf;
1105 }
1106
1107 /* Destroy a SPARC ELF linker hash table. */
1108
1109 static void
1110 _bfd_sparc_elf_link_hash_table_free (bfd *obfd)
1111 {
1112 struct _bfd_sparc_elf_link_hash_table *htab
1113 = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
1114
1115 if (htab->loc_hash_table)
1116 htab_delete (htab->loc_hash_table);
1117 if (htab->loc_hash_memory)
1118 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
1119 _bfd_elf_link_hash_table_free (obfd);
1120 }
1121
1122 /* Create a SPARC ELF linker hash table. */
1123
1124 struct bfd_link_hash_table *
1125 _bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1126 {
1127 struct _bfd_sparc_elf_link_hash_table *ret;
1128 bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1129
1130 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1131 if (ret == NULL)
1132 return NULL;
1133
1134 if (ABI_64_P (abfd))
1135 {
1136 ret->put_word = sparc_put_word_64;
1137 ret->r_info = sparc_elf_r_info_64;
1138 ret->r_symndx = sparc_elf_r_symndx_64;
1139 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1140 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1141 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1142 ret->word_align_power = 3;
1143 ret->align_power_max = 4;
1144 ret->bytes_per_word = 8;
1145 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1146 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1147 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
1148
1149 ret->build_plt_entry = sparc64_plt_entry_build;
1150 ret->plt_header_size = PLT64_HEADER_SIZE;
1151 ret->plt_entry_size = PLT64_ENTRY_SIZE;
1152 }
1153 else
1154 {
1155 ret->put_word = sparc_put_word_32;
1156 ret->r_info = sparc_elf_r_info_32;
1157 ret->r_symndx = sparc_elf_r_symndx_32;
1158 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1159 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1160 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1161 ret->word_align_power = 2;
1162 ret->align_power_max = 3;
1163 ret->bytes_per_word = 4;
1164 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1165 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1166 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
1167
1168 ret->build_plt_entry = sparc32_plt_entry_build;
1169 ret->plt_header_size = PLT32_HEADER_SIZE;
1170 ret->plt_entry_size = PLT32_ENTRY_SIZE;
1171 }
1172
1173 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1174 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1175 SPARC_ELF_DATA))
1176 {
1177 free (ret);
1178 return NULL;
1179 }
1180
1181 ret->loc_hash_table = htab_try_create (1024,
1182 elf_sparc_local_htab_hash,
1183 elf_sparc_local_htab_eq,
1184 NULL);
1185 ret->loc_hash_memory = objalloc_create ();
1186 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1187 {
1188 _bfd_sparc_elf_link_hash_table_free (abfd);
1189 return NULL;
1190 }
1191 ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
1192
1193 return &ret->elf.root;
1194 }
1195
1196 /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1197 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1198 hash table. */
1199
1200 bfd_boolean
1201 _bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1202 struct bfd_link_info *info)
1203 {
1204 struct _bfd_sparc_elf_link_hash_table *htab;
1205
1206 htab = _bfd_sparc_elf_hash_table (info);
1207 BFD_ASSERT (htab != NULL);
1208
1209 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1210 return FALSE;
1211
1212 if (htab->is_vxworks)
1213 {
1214 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1215 return FALSE;
1216 if (bfd_link_pic (info))
1217 {
1218 htab->plt_header_size
1219 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1220 htab->plt_entry_size
1221 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1222 }
1223 else
1224 {
1225 htab->plt_header_size
1226 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1227 htab->plt_entry_size
1228 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1229 }
1230 }
1231
1232 if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1233 || (!bfd_link_pic (info) && !htab->elf.srelbss))
1234 abort ();
1235
1236 return TRUE;
1237 }
1238
1239 static bfd_boolean
1240 create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1241 {
1242 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1243 struct elf_link_hash_table *htab = elf_hash_table (info);
1244 flagword flags, pltflags;
1245 asection *s;
1246
1247 if (htab->irelifunc != NULL || htab->iplt != NULL)
1248 return TRUE;
1249
1250 flags = bed->dynamic_sec_flags;
1251 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1252
1253 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1254 if (s == NULL
1255 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1256 return FALSE;
1257 htab->iplt = s;
1258
1259 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1260 flags | SEC_READONLY);
1261 if (s == NULL
1262 || ! bfd_set_section_alignment (abfd, s,
1263 bed->s->log_file_align))
1264 return FALSE;
1265 htab->irelplt = s;
1266
1267 return TRUE;
1268 }
1269
1270 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1271
1272 void
1273 _bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
1274 struct elf_link_hash_entry *dir,
1275 struct elf_link_hash_entry *ind)
1276 {
1277 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1278
1279 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1280 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1281
1282 if (eind->dyn_relocs != NULL)
1283 {
1284 if (edir->dyn_relocs != NULL)
1285 {
1286 struct elf_dyn_relocs **pp;
1287 struct elf_dyn_relocs *p;
1288
1289 /* Add reloc counts against the indirect sym to the direct sym
1290 list. Merge any entries against the same section. */
1291 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1292 {
1293 struct elf_dyn_relocs *q;
1294
1295 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1296 if (q->sec == p->sec)
1297 {
1298 q->pc_count += p->pc_count;
1299 q->count += p->count;
1300 *pp = p->next;
1301 break;
1302 }
1303 if (q == NULL)
1304 pp = &p->next;
1305 }
1306 *pp = edir->dyn_relocs;
1307 }
1308
1309 edir->dyn_relocs = eind->dyn_relocs;
1310 eind->dyn_relocs = NULL;
1311 }
1312
1313 if (ind->root.type == bfd_link_hash_indirect
1314 && dir->got.refcount <= 0)
1315 {
1316 edir->tls_type = eind->tls_type;
1317 eind->tls_type = GOT_UNKNOWN;
1318 }
1319
1320 /* Copy has_got_reloc and has_non_got_reloc. */
1321 edir->has_got_reloc |= eind->has_got_reloc;
1322 edir->has_non_got_reloc |= eind->has_non_got_reloc;
1323
1324 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1325 }
1326
1327 static int
1328 sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1329 int r_type, int is_local)
1330 {
1331 if (! ABI_64_P (abfd)
1332 && r_type == R_SPARC_TLS_GD_HI22
1333 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1334 r_type = R_SPARC_REV32;
1335
1336 if (!bfd_link_executable (info))
1337 return r_type;
1338
1339 switch (r_type)
1340 {
1341 case R_SPARC_TLS_GD_HI22:
1342 if (is_local)
1343 return R_SPARC_TLS_LE_HIX22;
1344 return R_SPARC_TLS_IE_HI22;
1345 case R_SPARC_TLS_GD_LO10:
1346 if (is_local)
1347 return R_SPARC_TLS_LE_LOX10;
1348 return R_SPARC_TLS_IE_LO10;
1349 case R_SPARC_TLS_IE_HI22:
1350 if (is_local)
1351 return R_SPARC_TLS_LE_HIX22;
1352 return r_type;
1353 case R_SPARC_TLS_IE_LO10:
1354 if (is_local)
1355 return R_SPARC_TLS_LE_LOX10;
1356 return r_type;
1357 case R_SPARC_TLS_LDM_HI22:
1358 return R_SPARC_TLS_LE_HIX22;
1359 case R_SPARC_TLS_LDM_LO10:
1360 return R_SPARC_TLS_LE_LOX10;
1361 }
1362
1363 return r_type;
1364 }
1365 \f
1366 /* Look through the relocs for a section during the first phase, and
1367 allocate space in the global offset table or procedure linkage
1368 table. */
1369
1370 bfd_boolean
1371 _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1372 asection *sec, const Elf_Internal_Rela *relocs)
1373 {
1374 struct _bfd_sparc_elf_link_hash_table *htab;
1375 Elf_Internal_Shdr *symtab_hdr;
1376 struct elf_link_hash_entry **sym_hashes;
1377 const Elf_Internal_Rela *rel;
1378 const Elf_Internal_Rela *rel_end;
1379 asection *sreloc;
1380 int num_relocs;
1381 bfd_boolean checked_tlsgd = FALSE;
1382
1383 if (bfd_link_relocatable (info))
1384 return TRUE;
1385
1386 htab = _bfd_sparc_elf_hash_table (info);
1387 BFD_ASSERT (htab != NULL);
1388 symtab_hdr = &elf_symtab_hdr (abfd);
1389 sym_hashes = elf_sym_hashes (abfd);
1390
1391 sreloc = NULL;
1392
1393 if (ABI_64_P (abfd))
1394 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
1395 else
1396 num_relocs = sec->reloc_count;
1397
1398 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1399
1400 if (htab->elf.dynobj == NULL)
1401 htab->elf.dynobj = abfd;
1402 if (!create_ifunc_sections (htab->elf.dynobj, info))
1403 return FALSE;
1404
1405 rel_end = relocs + num_relocs;
1406 for (rel = relocs; rel < rel_end; rel++)
1407 {
1408 unsigned int r_type;
1409 unsigned int r_symndx;
1410 struct elf_link_hash_entry *h;
1411 struct _bfd_sparc_elf_link_hash_entry *eh;
1412 Elf_Internal_Sym *isym;
1413
1414 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1415 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1416
1417 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1418 {
1419 /* xgettext:c-format */
1420 _bfd_error_handler (_("%B: bad symbol index: %d"), abfd, r_symndx);
1421 return FALSE;
1422 }
1423
1424 isym = NULL;
1425 if (r_symndx < symtab_hdr->sh_info)
1426 {
1427 /* A local symbol. */
1428 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1429 abfd, r_symndx);
1430 if (isym == NULL)
1431 return FALSE;
1432
1433 /* Check relocation against local STT_GNU_IFUNC symbol. */
1434 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1435 {
1436 h = elf_sparc_get_local_sym_hash (htab, abfd, rel,
1437 TRUE);
1438 if (h == NULL)
1439 return FALSE;
1440
1441 /* Fake a STT_GNU_IFUNC symbol. */
1442 h->type = STT_GNU_IFUNC;
1443 h->def_regular = 1;
1444 h->ref_regular = 1;
1445 h->forced_local = 1;
1446 h->root.type = bfd_link_hash_defined;
1447 }
1448 else
1449 h = NULL;
1450 }
1451 else
1452 {
1453 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1454 while (h->root.type == bfd_link_hash_indirect
1455 || h->root.type == bfd_link_hash_warning)
1456 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1457 }
1458
1459 if (h && h->type == STT_GNU_IFUNC)
1460 {
1461 if (h->def_regular)
1462 {
1463 h->ref_regular = 1;
1464 h->plt.refcount += 1;
1465 }
1466 }
1467
1468 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1469 with R_SPARC_TLS_GD_HI22. */
1470 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1471 switch (r_type)
1472 {
1473 case R_SPARC_TLS_GD_HI22:
1474 {
1475 const Elf_Internal_Rela *relt;
1476
1477 for (relt = rel + 1; relt < rel_end; relt++)
1478 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1479 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1480 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1481 break;
1482 checked_tlsgd = TRUE;
1483 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1484 }
1485 break;
1486 case R_SPARC_TLS_GD_LO10:
1487 case R_SPARC_TLS_GD_ADD:
1488 case R_SPARC_TLS_GD_CALL:
1489 checked_tlsgd = TRUE;
1490 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1491 break;
1492 }
1493
1494 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
1495 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1496
1497 switch (r_type)
1498 {
1499 case R_SPARC_TLS_LDM_HI22:
1500 case R_SPARC_TLS_LDM_LO10:
1501 htab->tls_ldm_got.refcount += 1;
1502 if (eh != NULL)
1503 eh->has_got_reloc = 1;
1504 break;
1505
1506 case R_SPARC_TLS_LE_HIX22:
1507 case R_SPARC_TLS_LE_LOX10:
1508 if (!bfd_link_executable (info))
1509 goto r_sparc_plt32;
1510 break;
1511
1512 case R_SPARC_TLS_IE_HI22:
1513 case R_SPARC_TLS_IE_LO10:
1514 if (!bfd_link_executable (info))
1515 info->flags |= DF_STATIC_TLS;
1516 /* Fall through */
1517
1518 case R_SPARC_GOT10:
1519 case R_SPARC_GOT13:
1520 case R_SPARC_GOT22:
1521 case R_SPARC_GOTDATA_HIX22:
1522 case R_SPARC_GOTDATA_LOX10:
1523 case R_SPARC_GOTDATA_OP_HIX22:
1524 case R_SPARC_GOTDATA_OP_LOX10:
1525 case R_SPARC_TLS_GD_HI22:
1526 case R_SPARC_TLS_GD_LO10:
1527 /* This symbol requires a global offset table entry. */
1528 {
1529 int tls_type, old_tls_type;
1530
1531 switch (r_type)
1532 {
1533 default:
1534 case R_SPARC_GOT10:
1535 case R_SPARC_GOT13:
1536 case R_SPARC_GOT22:
1537 case R_SPARC_GOTDATA_OP_HIX22:
1538 case R_SPARC_GOTDATA_OP_LOX10:
1539 tls_type = GOT_NORMAL;
1540 break;
1541 case R_SPARC_TLS_GD_HI22:
1542 case R_SPARC_TLS_GD_LO10:
1543 tls_type = GOT_TLS_GD;
1544 break;
1545 case R_SPARC_TLS_IE_HI22:
1546 case R_SPARC_TLS_IE_LO10:
1547 tls_type = GOT_TLS_IE;
1548 break;
1549 }
1550
1551 if (h != NULL)
1552 {
1553 h->got.refcount += 1;
1554 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1555 }
1556 else
1557 {
1558 bfd_signed_vma *local_got_refcounts;
1559
1560 /* This is a global offset table entry for a local symbol. */
1561 local_got_refcounts = elf_local_got_refcounts (abfd);
1562 if (local_got_refcounts == NULL)
1563 {
1564 bfd_size_type size;
1565
1566 size = symtab_hdr->sh_info;
1567 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1568 local_got_refcounts = ((bfd_signed_vma *)
1569 bfd_zalloc (abfd, size));
1570 if (local_got_refcounts == NULL)
1571 return FALSE;
1572 elf_local_got_refcounts (abfd) = local_got_refcounts;
1573 _bfd_sparc_elf_local_got_tls_type (abfd)
1574 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1575 }
1576 switch (r_type)
1577 {
1578 case R_SPARC_GOTDATA_OP_HIX22:
1579 case R_SPARC_GOTDATA_OP_LOX10:
1580 break;
1581
1582 default:
1583 local_got_refcounts[r_symndx] += 1;
1584 break;
1585 }
1586 old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1587 }
1588
1589 /* If a TLS symbol is accessed using IE at least once,
1590 there is no point to use dynamic model for it. */
1591 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1592 && (old_tls_type != GOT_TLS_GD
1593 || tls_type != GOT_TLS_IE))
1594 {
1595 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1596 tls_type = old_tls_type;
1597 else
1598 {
1599 _bfd_error_handler
1600 /* xgettext:c-format */
1601 (_("%B: `%s' accessed both as normal and thread local symbol"),
1602 abfd, h ? h->root.root.string : "<local>");
1603 return FALSE;
1604 }
1605 }
1606
1607 if (old_tls_type != tls_type)
1608 {
1609 if (h != NULL)
1610 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1611 else
1612 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1613 }
1614 }
1615
1616 if (htab->elf.sgot == NULL)
1617 {
1618 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
1619 return FALSE;
1620 }
1621
1622 if (eh != NULL)
1623 eh->has_got_reloc = 1;
1624 break;
1625
1626 case R_SPARC_TLS_GD_CALL:
1627 case R_SPARC_TLS_LDM_CALL:
1628 if (!bfd_link_executable (info))
1629 {
1630 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1631 __tls_get_addr. */
1632 struct bfd_link_hash_entry *bh = NULL;
1633 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1634 "__tls_get_addr", 0,
1635 bfd_und_section_ptr, 0,
1636 NULL, FALSE, FALSE,
1637 &bh))
1638 return FALSE;
1639 h = (struct elf_link_hash_entry *) bh;
1640 }
1641 else
1642 break;
1643 /* Fall through */
1644
1645 case R_SPARC_PLT32:
1646 case R_SPARC_WPLT30:
1647 case R_SPARC_HIPLT22:
1648 case R_SPARC_LOPLT10:
1649 case R_SPARC_PCPLT32:
1650 case R_SPARC_PCPLT22:
1651 case R_SPARC_PCPLT10:
1652 case R_SPARC_PLT64:
1653 /* This symbol requires a procedure linkage table entry. We
1654 actually build the entry in adjust_dynamic_symbol,
1655 because this might be a case of linking PIC code without
1656 linking in any dynamic objects, in which case we don't
1657 need to generate a procedure linkage table after all. */
1658
1659 if (h == NULL)
1660 {
1661 if (! ABI_64_P (abfd))
1662 {
1663 /* The Solaris native assembler will generate a WPLT30
1664 reloc for a local symbol if you assemble a call from
1665 one section to another when using -K pic. We treat
1666 it as WDISP30. */
1667 if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
1668 goto r_sparc_plt32;
1669 break;
1670 }
1671 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1672 else if (r_type == R_SPARC_WPLT30)
1673 break;
1674
1675 /* It does not make sense to have a procedure linkage
1676 table entry for a local symbol. */
1677 bfd_set_error (bfd_error_bad_value);
1678 return FALSE;
1679 }
1680
1681 h->needs_plt = 1;
1682
1683 {
1684 int this_r_type;
1685
1686 this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
1687 if (this_r_type == R_SPARC_PLT32
1688 || this_r_type == R_SPARC_PLT64)
1689 goto r_sparc_plt32;
1690 }
1691 h->plt.refcount += 1;
1692
1693 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1694 eh->has_got_reloc = 1;
1695 break;
1696
1697 case R_SPARC_PC10:
1698 case R_SPARC_PC22:
1699 case R_SPARC_PC_HH22:
1700 case R_SPARC_PC_HM10:
1701 case R_SPARC_PC_LM22:
1702 if (h != NULL)
1703 h->non_got_ref = 1;
1704
1705 if (h != NULL
1706 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1707 break;
1708 /* Fall through. */
1709
1710 case R_SPARC_DISP8:
1711 case R_SPARC_DISP16:
1712 case R_SPARC_DISP32:
1713 case R_SPARC_DISP64:
1714 case R_SPARC_WDISP30:
1715 case R_SPARC_WDISP22:
1716 case R_SPARC_WDISP19:
1717 case R_SPARC_WDISP16:
1718 case R_SPARC_WDISP10:
1719 case R_SPARC_8:
1720 case R_SPARC_16:
1721 case R_SPARC_32:
1722 case R_SPARC_HI22:
1723 case R_SPARC_22:
1724 case R_SPARC_13:
1725 case R_SPARC_LO10:
1726 case R_SPARC_UA16:
1727 case R_SPARC_UA32:
1728 case R_SPARC_10:
1729 case R_SPARC_11:
1730 case R_SPARC_64:
1731 case R_SPARC_OLO10:
1732 case R_SPARC_HH22:
1733 case R_SPARC_HM10:
1734 case R_SPARC_LM22:
1735 case R_SPARC_7:
1736 case R_SPARC_5:
1737 case R_SPARC_6:
1738 case R_SPARC_HIX22:
1739 case R_SPARC_LOX10:
1740 case R_SPARC_H44:
1741 case R_SPARC_M44:
1742 case R_SPARC_L44:
1743 case R_SPARC_H34:
1744 case R_SPARC_UA64:
1745 if (h != NULL)
1746 h->non_got_ref = 1;
1747
1748 if (eh != NULL && (sec->flags & SEC_CODE) != 0)
1749 eh->has_non_got_reloc = 1;
1750
1751 r_sparc_plt32:
1752 if (h != NULL && !bfd_link_pic (info))
1753 {
1754 /* We may need a .plt entry if the function this reloc
1755 refers to is in a shared lib. */
1756 h->plt.refcount += 1;
1757 }
1758
1759 /* If we are creating a shared library, and this is a reloc
1760 against a global symbol, or a non PC relative reloc
1761 against a local symbol, then we need to copy the reloc
1762 into the shared library. However, if we are linking with
1763 -Bsymbolic, we do not need to copy a reloc against a
1764 global symbol which is defined in an object we are
1765 including in the link (i.e., DEF_REGULAR is set). At
1766 this point we have not seen all the input files, so it is
1767 possible that DEF_REGULAR is not set now but will be set
1768 later (it is never cleared). In case of a weak definition,
1769 DEF_REGULAR may be cleared later by a strong definition in
1770 a shared library. We account for that possibility below by
1771 storing information in the relocs_copied field of the hash
1772 table entry. A similar situation occurs when creating
1773 shared libraries and symbol visibility changes render the
1774 symbol local.
1775
1776 If on the other hand, we are creating an executable, we
1777 may need to keep relocations for symbols satisfied by a
1778 dynamic library if we manage to avoid copy relocs for the
1779 symbol. */
1780 if ((bfd_link_pic (info)
1781 && (sec->flags & SEC_ALLOC) != 0
1782 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1783 || (h != NULL
1784 && (! SYMBOLIC_BIND (info, h)
1785 || h->root.type == bfd_link_hash_defweak
1786 || !h->def_regular))))
1787 || (!bfd_link_pic (info)
1788 && (sec->flags & SEC_ALLOC) != 0
1789 && h != NULL
1790 && (h->root.type == bfd_link_hash_defweak
1791 || !h->def_regular))
1792 || (!bfd_link_pic (info)
1793 && h != NULL
1794 && h->type == STT_GNU_IFUNC))
1795 {
1796 struct elf_dyn_relocs *p;
1797 struct elf_dyn_relocs **head;
1798
1799 /* When creating a shared object, we must copy these
1800 relocs into the output file. We create a reloc
1801 section in dynobj and make room for the reloc. */
1802 if (sreloc == NULL)
1803 {
1804 sreloc = _bfd_elf_make_dynamic_reloc_section
1805 (sec, htab->elf.dynobj, htab->word_align_power,
1806 abfd, /*rela?*/ TRUE);
1807
1808 if (sreloc == NULL)
1809 return FALSE;
1810 }
1811
1812 /* If this is a global symbol, we count the number of
1813 relocations we need for this symbol. */
1814 if (h != NULL)
1815 head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
1816 else
1817 {
1818 /* Track dynamic relocs needed for local syms too.
1819 We really need local syms available to do this
1820 easily. Oh well. */
1821 asection *s;
1822 void *vpp;
1823
1824 BFD_ASSERT (isym != NULL);
1825 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1826 if (s == NULL)
1827 s = sec;
1828
1829 vpp = &elf_section_data (s)->local_dynrel;
1830 head = (struct elf_dyn_relocs **) vpp;
1831 }
1832
1833 p = *head;
1834 if (p == NULL || p->sec != sec)
1835 {
1836 bfd_size_type amt = sizeof *p;
1837 p = ((struct elf_dyn_relocs *)
1838 bfd_alloc (htab->elf.dynobj, amt));
1839 if (p == NULL)
1840 return FALSE;
1841 p->next = *head;
1842 *head = p;
1843 p->sec = sec;
1844 p->count = 0;
1845 p->pc_count = 0;
1846 }
1847
1848 p->count += 1;
1849 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1850 p->pc_count += 1;
1851 }
1852
1853 break;
1854
1855 case R_SPARC_GNU_VTINHERIT:
1856 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1857 return FALSE;
1858 break;
1859
1860 case R_SPARC_GNU_VTENTRY:
1861 BFD_ASSERT (h != NULL);
1862 if (h != NULL
1863 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1864 return FALSE;
1865 break;
1866
1867 case R_SPARC_REGISTER:
1868 /* Nothing to do. */
1869 break;
1870
1871 default:
1872 break;
1873 }
1874 }
1875
1876 return TRUE;
1877 }
1878 \f
1879 asection *
1880 _bfd_sparc_elf_gc_mark_hook (asection *sec,
1881 struct bfd_link_info *info,
1882 Elf_Internal_Rela *rel,
1883 struct elf_link_hash_entry *h,
1884 Elf_Internal_Sym *sym)
1885 {
1886 if (h != NULL)
1887 switch (SPARC_ELF_R_TYPE (rel->r_info))
1888 {
1889 case R_SPARC_GNU_VTINHERIT:
1890 case R_SPARC_GNU_VTENTRY:
1891 return NULL;
1892 }
1893
1894 /* FIXME: The test here, in check_relocs and in relocate_section
1895 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1896 if (bfd_link_pic (info))
1897 {
1898 switch (SPARC_ELF_R_TYPE (rel->r_info))
1899 {
1900 case R_SPARC_TLS_GD_CALL:
1901 case R_SPARC_TLS_LDM_CALL:
1902 /* This reloc implicitly references __tls_get_addr. We know
1903 another reloc will reference the same symbol as the one
1904 on this reloc, so the real symbol and section will be
1905 gc marked when processing the other reloc. That lets
1906 us handle __tls_get_addr here. */
1907 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1908 FALSE, FALSE, TRUE);
1909 BFD_ASSERT (h != NULL);
1910 h->mark = 1;
1911 if (h->is_weakalias)
1912 weakdef (h)->mark = 1;
1913 sym = NULL;
1914 }
1915 }
1916
1917 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1918 }
1919
1920 static Elf_Internal_Rela *
1921 sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
1922 Elf_Internal_Rela *relend,
1923 bfd_vma offset)
1924 {
1925 while (rel < relend)
1926 {
1927 if (rel->r_offset == offset)
1928 return rel;
1929 rel++;
1930 }
1931 return NULL;
1932 }
1933
1934 /* Remove undefined weak symbol from the dynamic symbol table if it
1935 is resolved to 0. */
1936
1937 bfd_boolean
1938 _bfd_sparc_elf_fixup_symbol (struct bfd_link_info *info,
1939 struct elf_link_hash_entry *h)
1940 {
1941 if (h->dynindx != -1
1942 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
1943 _bfd_sparc_elf_hash_entry (h)))
1944 {
1945 h->dynindx = -1;
1946 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1947 h->dynstr_index);
1948 }
1949 return TRUE;
1950 }
1951
1952 /* Find dynamic relocs for H that apply to read-only sections. */
1953
1954 static asection *
1955 readonly_dynrelocs (struct elf_link_hash_entry *h)
1956 {
1957 struct elf_dyn_relocs *p;
1958
1959 for (p = _bfd_sparc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
1960 {
1961 asection *s = p->sec->output_section;
1962
1963 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1964 return p->sec;
1965 }
1966 return NULL;
1967 }
1968
1969 /* Adjust a symbol defined by a dynamic object and referenced by a
1970 regular object. The current definition is in some section of the
1971 dynamic object, but we're not including those sections. We have to
1972 change the definition to something the rest of the link can
1973 understand. */
1974
1975 bfd_boolean
1976 _bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1977 struct elf_link_hash_entry *h)
1978 {
1979 struct _bfd_sparc_elf_link_hash_table *htab;
1980 asection *s, *srel;
1981
1982 htab = _bfd_sparc_elf_hash_table (info);
1983 BFD_ASSERT (htab != NULL);
1984
1985 /* Make sure we know what is going on here. */
1986 BFD_ASSERT (htab->elf.dynobj != NULL
1987 && (h->needs_plt
1988 || h->type == STT_GNU_IFUNC
1989 || h->is_weakalias
1990 || (h->def_dynamic
1991 && h->ref_regular
1992 && !h->def_regular)));
1993
1994 /* If this is a function, put it in the procedure linkage table. We
1995 will fill in the contents of the procedure linkage table later
1996 (although we could actually do it here). The STT_NOTYPE
1997 condition is a hack specifically for the Oracle libraries
1998 delivered for Solaris; for some inexplicable reason, they define
1999 some of their functions as STT_NOTYPE when they really should be
2000 STT_FUNC. */
2001 if (h->type == STT_FUNC
2002 || h->type == STT_GNU_IFUNC
2003 || h->needs_plt
2004 || (h->type == STT_NOTYPE
2005 && (h->root.type == bfd_link_hash_defined
2006 || h->root.type == bfd_link_hash_defweak)
2007 && (h->root.u.def.section->flags & SEC_CODE) != 0))
2008 {
2009 if (h->plt.refcount <= 0
2010 || (h->type != STT_GNU_IFUNC
2011 && (SYMBOL_CALLS_LOCAL (info, h)
2012 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2013 && h->root.type == bfd_link_hash_undefweak))))
2014 {
2015 /* This case can occur if we saw a WPLT30 reloc in an input
2016 file, but the symbol was never referred to by a dynamic
2017 object, or if all references were garbage collected. In
2018 such a case, we don't actually need to build a procedure
2019 linkage table, and we can just do a WDISP30 reloc instead. */
2020 h->plt.offset = (bfd_vma) -1;
2021 h->needs_plt = 0;
2022 }
2023
2024 return TRUE;
2025 }
2026 else
2027 h->plt.offset = (bfd_vma) -1;
2028
2029 /* If this is a weak symbol, and there is a real definition, the
2030 processor independent code will have arranged for us to see the
2031 real definition first, and we can just use the same value. */
2032 if (h->is_weakalias)
2033 {
2034 struct elf_link_hash_entry *def = weakdef (h);
2035 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2036 h->root.u.def.section = def->root.u.def.section;
2037 h->root.u.def.value = def->root.u.def.value;
2038 return TRUE;
2039 }
2040
2041 /* This is a reference to a symbol defined by a dynamic object which
2042 is not a function. */
2043
2044 /* If we are creating a shared library, we must presume that the
2045 only references to the symbol are via the global offset table.
2046 For such cases we need not do anything here; the relocations will
2047 be handled correctly by relocate_section. */
2048 if (bfd_link_pic (info))
2049 return TRUE;
2050
2051 /* If there are no references to this symbol that do not use the
2052 GOT, we don't need to generate a copy reloc. */
2053 if (!h->non_got_ref)
2054 return TRUE;
2055
2056 /* If -z nocopyreloc was given, we won't generate them either. */
2057 if (info->nocopyreloc)
2058 {
2059 h->non_got_ref = 0;
2060 return TRUE;
2061 }
2062
2063 /* If we don't find any dynamic relocs in read-only sections, then
2064 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2065 if (!readonly_dynrelocs (h))
2066 {
2067 h->non_got_ref = 0;
2068 return TRUE;
2069 }
2070
2071 /* We must allocate the symbol in our .dynbss section, which will
2072 become part of the .bss section of the executable. There will be
2073 an entry for this symbol in the .dynsym section. The dynamic
2074 object will contain position independent code, so all references
2075 from the dynamic object to this symbol will go through the global
2076 offset table. The dynamic linker will use the .dynsym entry to
2077 determine the address it must put in the global offset table, so
2078 both the dynamic object and the regular object will refer to the
2079 same memory location for the variable. */
2080
2081 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2082 to copy the initial value out of the dynamic object and into the
2083 runtime process image. We need to remember the offset into the
2084 .rel.bss section we are going to use. */
2085 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2086 {
2087 s = htab->elf.sdynrelro;
2088 srel = htab->elf.sreldynrelro;
2089 }
2090 else
2091 {
2092 s = htab->elf.sdynbss;
2093 srel = htab->elf.srelbss;
2094 }
2095 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2096 {
2097 srel->size += SPARC_ELF_RELA_BYTES (htab);
2098 h->needs_copy = 1;
2099 }
2100
2101 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2102 }
2103
2104 /* Allocate space in .plt, .got and associated reloc sections for
2105 dynamic relocs. */
2106
2107 static bfd_boolean
2108 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2109 {
2110 struct bfd_link_info *info;
2111 struct _bfd_sparc_elf_link_hash_table *htab;
2112 struct _bfd_sparc_elf_link_hash_entry *eh;
2113 struct elf_dyn_relocs *p;
2114 bfd_boolean resolved_to_zero;
2115
2116 if (h->root.type == bfd_link_hash_indirect)
2117 return TRUE;
2118
2119 info = (struct bfd_link_info *) inf;
2120 htab = _bfd_sparc_elf_hash_table (info);
2121 BFD_ASSERT (htab != NULL);
2122
2123 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2124 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
2125
2126 if ((htab->elf.dynamic_sections_created
2127 && h->plt.refcount > 0)
2128 || (h->type == STT_GNU_IFUNC
2129 && h->def_regular
2130 && h->ref_regular))
2131 {
2132 /* Make sure this symbol is output as a dynamic symbol.
2133 Undefined weak syms won't yet be marked as dynamic. */
2134 if (h->dynindx == -1
2135 && !h->forced_local
2136 && !resolved_to_zero
2137 && h->root.type == bfd_link_hash_undefweak)
2138 {
2139 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2140 return FALSE;
2141 }
2142
2143 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
2144 || (h->type == STT_GNU_IFUNC
2145 && h->def_regular))
2146 {
2147 asection *s = htab->elf.splt;
2148
2149 if (s == NULL)
2150 s = htab->elf.iplt;
2151
2152 /* Allocate room for the header. */
2153 if (s->size == 0)
2154 {
2155 s->size = htab->plt_header_size;
2156
2157 /* Allocate space for the .rela.plt.unloaded relocations. */
2158 if (htab->is_vxworks && !bfd_link_pic (info))
2159 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2160 }
2161
2162 /* The procedure linkage table size is bounded by the magnitude
2163 of the offset we can describe in the entry. */
2164 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
2165 (((bfd_vma)1 << 31) << 1) : 0x400000))
2166 {
2167 bfd_set_error (bfd_error_bad_value);
2168 return FALSE;
2169 }
2170
2171 if (SPARC_ELF_WORD_BYTES(htab) == 8
2172 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2173 {
2174 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2175
2176
2177 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2178
2179 h->plt.offset = (s->size - (off * 8));
2180 }
2181 else
2182 h->plt.offset = s->size;
2183
2184 /* If this symbol is not defined in a regular file, and we are
2185 not generating a shared library, then set the symbol to this
2186 location in the .plt. This is required to make function
2187 pointers compare as equal between the normal executable and
2188 the shared library. */
2189 if (! bfd_link_pic (info)
2190 && !h->def_regular)
2191 {
2192 h->root.u.def.section = s;
2193 h->root.u.def.value = h->plt.offset;
2194 }
2195
2196 /* Make room for this entry. */
2197 s->size += htab->plt_entry_size;
2198
2199 /* There should be no PLT relocations against resolved undefined
2200 weak symbols in the executable. */
2201 if (!resolved_to_zero)
2202 {
2203 /* We also need to make an entry in the .rela.plt section. */
2204 if (s == htab->elf.splt)
2205 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
2206 else
2207 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
2208 }
2209
2210 if (htab->is_vxworks)
2211 {
2212 /* Allocate space for the .got.plt entry. */
2213 htab->elf.sgotplt->size += 4;
2214
2215 /* ...and for the .rela.plt.unloaded relocations. */
2216 if (!bfd_link_pic (info))
2217 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2218 }
2219 }
2220 else
2221 {
2222 h->plt.offset = (bfd_vma) -1;
2223 h->needs_plt = 0;
2224 }
2225 }
2226 else
2227 {
2228 h->plt.offset = (bfd_vma) -1;
2229 h->needs_plt = 0;
2230 }
2231
2232 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2233 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2234 if (h->got.refcount > 0
2235 && bfd_link_executable (info)
2236 && h->dynindx == -1
2237 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2238 h->got.offset = (bfd_vma) -1;
2239 else if (h->got.refcount > 0)
2240 {
2241 asection *s;
2242 bfd_boolean dyn;
2243 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2244
2245 /* Make sure this symbol is output as a dynamic symbol.
2246 Undefined weak syms won't yet be marked as dynamic. */
2247 if (h->dynindx == -1
2248 && !h->forced_local
2249 && !resolved_to_zero
2250 && h->root.type == bfd_link_hash_undefweak)
2251 {
2252 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2253 return FALSE;
2254 }
2255
2256 s = htab->elf.sgot;
2257 h->got.offset = s->size;
2258 s->size += SPARC_ELF_WORD_BYTES (htab);
2259 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2260 if (tls_type == GOT_TLS_GD)
2261 s->size += SPARC_ELF_WORD_BYTES (htab);
2262 dyn = htab->elf.dynamic_sections_created;
2263 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2264 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
2265 global. No dynamic relocations are needed against resolved
2266 undefined weak symbols in an executable. */
2267 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
2268 || tls_type == GOT_TLS_IE
2269 || h->type == STT_GNU_IFUNC)
2270 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2271 else if (tls_type == GOT_TLS_GD)
2272 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
2273 else if (((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2274 && !resolved_to_zero)
2275 || h->root.type != bfd_link_hash_undefweak)
2276 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2277 bfd_link_pic (info),
2278 h))
2279 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2280 }
2281 else
2282 h->got.offset = (bfd_vma) -1;
2283
2284 if (eh->dyn_relocs == NULL)
2285 return TRUE;
2286
2287 /* In the shared -Bsymbolic case, discard space allocated for
2288 dynamic pc-relative relocs against symbols which turn out to be
2289 defined in regular objects. For the normal shared case, discard
2290 space for pc-relative relocs that have become local due to symbol
2291 visibility changes. */
2292
2293 if (bfd_link_pic (info))
2294 {
2295 if (SYMBOL_CALLS_LOCAL (info, h))
2296 {
2297 struct elf_dyn_relocs **pp;
2298
2299 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2300 {
2301 p->count -= p->pc_count;
2302 p->pc_count = 0;
2303 if (p->count == 0)
2304 *pp = p->next;
2305 else
2306 pp = &p->next;
2307 }
2308 }
2309
2310 if (htab->is_vxworks)
2311 {
2312 struct elf_dyn_relocs **pp;
2313
2314 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2315 {
2316 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2317 *pp = p->next;
2318 else
2319 pp = &p->next;
2320 }
2321 }
2322
2323 /* Also discard relocs on undefined weak syms with non-default
2324 visibility or in PIE. */
2325 if (eh->dyn_relocs != NULL
2326 && h->root.type == bfd_link_hash_undefweak)
2327 {
2328 /* An undefined weak symbol is never
2329 bound locally in a shared library. */
2330
2331 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2332 || resolved_to_zero)
2333 {
2334 if (h->non_got_ref)
2335 {
2336 /* Keep dynamic non-GOT/non-PLT relocation so that we
2337 can branch to 0 without PLT. */
2338 struct elf_dyn_relocs **pp;
2339
2340 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2341 if (p->pc_count == 0)
2342 *pp = p->next;
2343 else
2344 {
2345 /* Remove other relocations. */
2346 p->count = p->pc_count;
2347 pp = &p->next;
2348 }
2349
2350 if (eh->dyn_relocs != NULL)
2351 {
2352 /* Make sure undefined weak symbols are output
2353 as dynamic symbols in PIEs for dynamic non-GOT
2354 non-PLT reloations. */
2355 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2356 return FALSE;
2357 }
2358 }
2359 else
2360 eh->dyn_relocs = NULL;
2361 }
2362
2363 /* Make sure undefined weak symbols are output as a dynamic
2364 symbol in PIEs. */
2365 else if (h->dynindx == -1
2366 && !h->forced_local)
2367 {
2368 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2369 return FALSE;
2370 }
2371 }
2372 }
2373 else
2374 {
2375 /* For the non-shared case, discard space for relocs against
2376 symbols which turn out to need copy relocs or are not
2377 dynamic. */
2378
2379 if ((!h->non_got_ref
2380 || (h->root.type == bfd_link_hash_undefweak
2381 && !resolved_to_zero))
2382 && ((h->def_dynamic
2383 && !h->def_regular)
2384 || (htab->elf.dynamic_sections_created
2385 && (h->root.type == bfd_link_hash_undefweak
2386 || h->root.type == bfd_link_hash_undefined))))
2387 {
2388 /* Make sure this symbol is output as a dynamic symbol.
2389 Undefined weak syms won't yet be marked as dynamic. */
2390 if (h->dynindx == -1
2391 && !h->forced_local
2392 && !resolved_to_zero
2393 && h->root.type == bfd_link_hash_undefweak)
2394 {
2395 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2396 return FALSE;
2397 }
2398
2399 /* If that succeeded, we know we'll be keeping all the
2400 relocs. */
2401 if (h->dynindx != -1)
2402 goto keep;
2403 }
2404
2405 eh->dyn_relocs = NULL;
2406
2407 keep: ;
2408 }
2409
2410 /* Finally, allocate space. */
2411 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2412 {
2413 asection *sreloc = elf_section_data (p->sec)->sreloc;
2414 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2415 }
2416
2417 return TRUE;
2418 }
2419
2420 /* Allocate space in .plt, .got and associated reloc sections for
2421 local dynamic relocs. */
2422
2423 static bfd_boolean
2424 allocate_local_dynrelocs (void **slot, void *inf)
2425 {
2426 struct elf_link_hash_entry *h
2427 = (struct elf_link_hash_entry *) *slot;
2428
2429 if (h->type != STT_GNU_IFUNC
2430 || !h->def_regular
2431 || !h->ref_regular
2432 || !h->forced_local
2433 || h->root.type != bfd_link_hash_defined)
2434 abort ();
2435
2436 return allocate_dynrelocs (h, inf);
2437 }
2438
2439 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2440 read-only sections. */
2441
2442 static bfd_boolean
2443 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
2444 {
2445 asection *sec;
2446
2447 if (h->root.type == bfd_link_hash_indirect)
2448 return TRUE;
2449
2450 sec = readonly_dynrelocs (h);
2451 if (sec != NULL)
2452 {
2453 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
2454
2455 info->flags |= DF_TEXTREL;
2456 info->callbacks->minfo
2457 (_("%B: dynamic relocation against `%T' in read-only section `%A'\n"),
2458 sec->owner, h->root.root.string, sec);
2459
2460 /* Not an error, just cut short the traversal. */
2461 return FALSE;
2462 }
2463 return TRUE;
2464 }
2465
2466 /* Return true if the dynamic symbol for a given section should be
2467 omitted when creating a shared library. */
2468
2469 bfd_boolean
2470 _bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2471 struct bfd_link_info *info,
2472 asection *p)
2473 {
2474 /* We keep the .got section symbol so that explicit relocations
2475 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2476 can be turned into relocations against the .got symbol. */
2477 if (strcmp (p->name, ".got") == 0)
2478 return FALSE;
2479
2480 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2481 }
2482
2483 /* Set the sizes of the dynamic sections. */
2484
2485 bfd_boolean
2486 _bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2487 struct bfd_link_info *info)
2488 {
2489 struct _bfd_sparc_elf_link_hash_table *htab;
2490 bfd *dynobj;
2491 asection *s;
2492 bfd *ibfd;
2493
2494 htab = _bfd_sparc_elf_hash_table (info);
2495 BFD_ASSERT (htab != NULL);
2496 dynobj = htab->elf.dynobj;
2497 BFD_ASSERT (dynobj != NULL);
2498
2499 if (elf_hash_table (info)->dynamic_sections_created)
2500 {
2501 /* Set the contents of the .interp section to the interpreter. */
2502 if (bfd_link_executable (info) && !info->nointerp)
2503 {
2504 s = bfd_get_linker_section (dynobj, ".interp");
2505 BFD_ASSERT (s != NULL);
2506 s->size = htab->dynamic_interpreter_size;
2507 s->contents = (unsigned char *) htab->dynamic_interpreter;
2508 htab->interp = s;
2509 }
2510 }
2511
2512 /* Set up .got offsets for local syms, and space for local dynamic
2513 relocs. */
2514 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2515 {
2516 bfd_signed_vma *local_got;
2517 bfd_signed_vma *end_local_got;
2518 char *local_tls_type;
2519 bfd_size_type locsymcount;
2520 Elf_Internal_Shdr *symtab_hdr;
2521 asection *srel;
2522
2523 if (! is_sparc_elf (ibfd))
2524 continue;
2525
2526 for (s = ibfd->sections; s != NULL; s = s->next)
2527 {
2528 struct elf_dyn_relocs *p;
2529
2530 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2531 {
2532 if (!bfd_is_abs_section (p->sec)
2533 && bfd_is_abs_section (p->sec->output_section))
2534 {
2535 /* Input section has been discarded, either because
2536 it is a copy of a linkonce section or due to
2537 linker script /DISCARD/, so we'll be discarding
2538 the relocs too. */
2539 }
2540 else if (htab->is_vxworks
2541 && strcmp (p->sec->output_section->name,
2542 ".tls_vars") == 0)
2543 {
2544 /* Relocations in vxworks .tls_vars sections are
2545 handled specially by the loader. */
2546 }
2547 else if (p->count != 0)
2548 {
2549 srel = elf_section_data (p->sec)->sreloc;
2550 if (!htab->elf.dynamic_sections_created)
2551 srel = htab->elf.irelplt;
2552 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2553 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2554 {
2555 info->flags |= DF_TEXTREL;
2556 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2557 p->sec->owner, p->sec);
2558 }
2559 }
2560 }
2561 }
2562
2563 local_got = elf_local_got_refcounts (ibfd);
2564 if (!local_got)
2565 continue;
2566
2567 symtab_hdr = &elf_symtab_hdr (ibfd);
2568 locsymcount = symtab_hdr->sh_info;
2569 end_local_got = local_got + locsymcount;
2570 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
2571 s = htab->elf.sgot;
2572 srel = htab->elf.srelgot;
2573 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2574 {
2575 if (*local_got > 0)
2576 {
2577 *local_got = s->size;
2578 s->size += SPARC_ELF_WORD_BYTES (htab);
2579 if (*local_tls_type == GOT_TLS_GD)
2580 s->size += SPARC_ELF_WORD_BYTES (htab);
2581 if (bfd_link_pic (info)
2582 || *local_tls_type == GOT_TLS_GD
2583 || *local_tls_type == GOT_TLS_IE)
2584 srel->size += SPARC_ELF_RELA_BYTES (htab);
2585 }
2586 else
2587 *local_got = (bfd_vma) -1;
2588 }
2589 }
2590
2591 if (htab->tls_ldm_got.refcount > 0)
2592 {
2593 /* Allocate 2 got entries and 1 dynamic reloc for
2594 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
2595 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2596 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2597 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2598 }
2599 else
2600 htab->tls_ldm_got.offset = -1;
2601
2602 /* Allocate global sym .plt and .got entries, and space for global
2603 sym dynamic relocs. */
2604 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2605
2606 /* Allocate .plt and .got entries, and space for local symbols. */
2607 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2608
2609 if (! ABI_64_P (output_bfd)
2610 && !htab->is_vxworks
2611 && elf_hash_table (info)->dynamic_sections_created)
2612 {
2613 /* Make space for the trailing nop in .plt. */
2614 if (htab->elf.splt->size > 0)
2615 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
2616
2617 /* If the .got section is more than 0x1000 bytes, we add
2618 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2619 bit relocations have a greater chance of working.
2620
2621 FIXME: Make this optimization work for 64-bit too. */
2622 if (htab->elf.sgot->size >= 0x1000
2623 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2624 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2625 }
2626
2627 /* The check_relocs and adjust_dynamic_symbol entry points have
2628 determined the sizes of the various dynamic sections. Allocate
2629 memory for them. */
2630 for (s = dynobj->sections; s != NULL; s = s->next)
2631 {
2632 if ((s->flags & SEC_LINKER_CREATED) == 0)
2633 continue;
2634
2635 if (s == htab->elf.splt
2636 || s == htab->elf.sgot
2637 || s == htab->elf.sdynbss
2638 || s == htab->elf.sdynrelro
2639 || s == htab->elf.iplt
2640 || s == htab->elf.sgotplt)
2641 {
2642 /* Strip this section if we don't need it; see the
2643 comment below. */
2644 }
2645 else if (CONST_STRNEQ (s->name, ".rela"))
2646 {
2647 if (s->size != 0)
2648 {
2649 /* We use the reloc_count field as a counter if we need
2650 to copy relocs into the output file. */
2651 s->reloc_count = 0;
2652 }
2653 }
2654 else
2655 {
2656 /* It's not one of our sections. */
2657 continue;
2658 }
2659
2660 if (s->size == 0)
2661 {
2662 /* If we don't need this section, strip it from the
2663 output file. This is mostly to handle .rela.bss and
2664 .rela.plt. We must create both sections in
2665 create_dynamic_sections, because they must be created
2666 before the linker maps input sections to output
2667 sections. The linker does that before
2668 adjust_dynamic_symbol is called, and it is that
2669 function which decides whether anything needs to go
2670 into these sections. */
2671 s->flags |= SEC_EXCLUDE;
2672 continue;
2673 }
2674
2675 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2676 continue;
2677
2678 /* Allocate memory for the section contents. Zero the memory
2679 for the benefit of .rela.plt, which has 4 unused entries
2680 at the beginning, and we don't want garbage. */
2681 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2682 if (s->contents == NULL)
2683 return FALSE;
2684 }
2685
2686 if (elf_hash_table (info)->dynamic_sections_created)
2687 {
2688 /* Add some entries to the .dynamic section. We fill in the
2689 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2690 must add the entries now so that we get the correct size for
2691 the .dynamic section. The DT_DEBUG entry is filled in by the
2692 dynamic linker and used by the debugger. */
2693 #define add_dynamic_entry(TAG, VAL) \
2694 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2695
2696 if (bfd_link_executable (info))
2697 {
2698 if (!add_dynamic_entry (DT_DEBUG, 0))
2699 return FALSE;
2700 }
2701
2702 if (htab->elf.srelplt->size != 0)
2703 {
2704 if (!add_dynamic_entry (DT_PLTGOT, 0)
2705 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2706 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2707 || !add_dynamic_entry (DT_JMPREL, 0))
2708 return FALSE;
2709 }
2710
2711 if (!add_dynamic_entry (DT_RELA, 0)
2712 || !add_dynamic_entry (DT_RELASZ, 0)
2713 || !add_dynamic_entry (DT_RELAENT,
2714 SPARC_ELF_RELA_BYTES (htab)))
2715 return FALSE;
2716
2717 /* If any dynamic relocs apply to a read-only section,
2718 then we need a DT_TEXTREL entry. */
2719 if ((info->flags & DF_TEXTREL) == 0)
2720 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
2721
2722 if (info->flags & DF_TEXTREL)
2723 {
2724 if (!add_dynamic_entry (DT_TEXTREL, 0))
2725 return FALSE;
2726 }
2727
2728 if (ABI_64_P (output_bfd))
2729 {
2730 int reg;
2731 struct _bfd_sparc_elf_app_reg * app_regs;
2732 struct elf_strtab_hash *dynstr;
2733 struct elf_link_hash_table *eht = elf_hash_table (info);
2734
2735 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2736 entries if needed. */
2737 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2738 dynstr = eht->dynstr;
2739
2740 for (reg = 0; reg < 4; reg++)
2741 if (app_regs [reg].name != NULL)
2742 {
2743 struct elf_link_local_dynamic_entry *entry, *e;
2744
2745 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2746 return FALSE;
2747
2748 entry = (struct elf_link_local_dynamic_entry *)
2749 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2750 if (entry == NULL)
2751 return FALSE;
2752
2753 /* We cheat here a little bit: the symbol will not be local, so we
2754 put it at the end of the dynlocal linked list. We will fix it
2755 later on, as we have to fix other fields anyway. */
2756 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2757 entry->isym.st_size = 0;
2758 if (*app_regs [reg].name != '\0')
2759 entry->isym.st_name
2760 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2761 else
2762 entry->isym.st_name = 0;
2763 entry->isym.st_other = 0;
2764 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2765 STT_REGISTER);
2766 entry->isym.st_shndx = app_regs [reg].shndx;
2767 entry->isym.st_target_internal = 0;
2768 entry->next = NULL;
2769 entry->input_bfd = output_bfd;
2770 entry->input_indx = -1;
2771
2772 if (eht->dynlocal == NULL)
2773 eht->dynlocal = entry;
2774 else
2775 {
2776 for (e = eht->dynlocal; e->next; e = e->next)
2777 ;
2778 e->next = entry;
2779 }
2780 eht->dynsymcount++;
2781 }
2782 }
2783 if (htab->is_vxworks
2784 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2785 return FALSE;
2786 }
2787 #undef add_dynamic_entry
2788
2789 return TRUE;
2790 }
2791 \f
2792 bfd_boolean
2793 _bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2794 {
2795 if (!sec->used_by_bfd)
2796 {
2797 struct _bfd_sparc_elf_section_data *sdata;
2798 bfd_size_type amt = sizeof (*sdata);
2799
2800 sdata = bfd_zalloc (abfd, amt);
2801 if (sdata == NULL)
2802 return FALSE;
2803 sec->used_by_bfd = sdata;
2804 }
2805
2806 return _bfd_elf_new_section_hook (abfd, sec);
2807 }
2808
2809 bfd_boolean
2810 _bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2811 struct bfd_section *section,
2812 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2813 bfd_boolean *again)
2814 {
2815 if (bfd_link_relocatable (link_info))
2816 (*link_info->callbacks->einfo)
2817 (_("%P%F: --relax and -r may not be used together\n"));
2818
2819 *again = FALSE;
2820 sec_do_relax (section) = 1;
2821 return TRUE;
2822 }
2823 \f
2824 /* Return the base VMA address which should be subtracted from real addresses
2825 when resolving @dtpoff relocation.
2826 This is PT_TLS segment p_vaddr. */
2827
2828 static bfd_vma
2829 dtpoff_base (struct bfd_link_info *info)
2830 {
2831 /* If tls_sec is NULL, we should have signalled an error already. */
2832 if (elf_hash_table (info)->tls_sec == NULL)
2833 return 0;
2834 return elf_hash_table (info)->tls_sec->vma;
2835 }
2836
2837 /* Return the relocation value for @tpoff relocation
2838 if STT_TLS virtual address is ADDRESS. */
2839
2840 static bfd_vma
2841 tpoff (struct bfd_link_info *info, bfd_vma address)
2842 {
2843 struct elf_link_hash_table *htab = elf_hash_table (info);
2844 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
2845 bfd_vma static_tls_size;
2846
2847 /* If tls_sec is NULL, we should have signalled an error already. */
2848 if (htab->tls_sec == NULL)
2849 return 0;
2850
2851 /* Consider special static TLS alignment requirements. */
2852 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
2853 return address - static_tls_size - htab->tls_sec->vma;
2854 }
2855
2856 /* Return the relocation value for a %gdop relocation. */
2857
2858 static bfd_vma
2859 gdopoff (struct bfd_link_info *info, bfd_vma address)
2860 {
2861 struct elf_link_hash_table *htab = elf_hash_table (info);
2862 bfd_vma got_base;
2863
2864 got_base = (htab->hgot->root.u.def.value
2865 + htab->hgot->root.u.def.section->output_offset
2866 + htab->hgot->root.u.def.section->output_section->vma);
2867
2868 return address - got_base;
2869 }
2870
2871 /* Return whether H is local and its ADDRESS is within 4G of
2872 _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
2873 sethi, xor sequence. */
2874
2875 static bfd_boolean
2876 gdop_relative_offset_ok (struct bfd_link_info *info,
2877 struct elf_link_hash_entry *h,
2878 bfd_vma address ATTRIBUTE_UNUSED)
2879 {
2880 if (!SYMBOL_REFERENCES_LOCAL (info, h))
2881 return FALSE;
2882 /* If H is undefined, ADDRESS will be zero. We can't allow a
2883 relative offset to "zero" when producing PIEs or shared libs.
2884 Note that to get here with an undefined symbol it must also be
2885 hidden or internal visibility. */
2886 if (bfd_link_pic (info)
2887 && h != NULL
2888 && (h->root.type == bfd_link_hash_undefweak
2889 || h->root.type == bfd_link_hash_undefined))
2890 return FALSE;
2891 #ifdef BFD64
2892 return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
2893 #else
2894 return TRUE;
2895 #endif
2896 }
2897
2898 /* Relocate a SPARC ELF section. */
2899
2900 bfd_boolean
2901 _bfd_sparc_elf_relocate_section (bfd *output_bfd,
2902 struct bfd_link_info *info,
2903 bfd *input_bfd,
2904 asection *input_section,
2905 bfd_byte *contents,
2906 Elf_Internal_Rela *relocs,
2907 Elf_Internal_Sym *local_syms,
2908 asection **local_sections)
2909 {
2910 struct _bfd_sparc_elf_link_hash_table *htab;
2911 Elf_Internal_Shdr *symtab_hdr;
2912 struct elf_link_hash_entry **sym_hashes;
2913 bfd_vma *local_got_offsets;
2914 bfd_vma got_base;
2915 asection *sreloc;
2916 Elf_Internal_Rela *rel;
2917 Elf_Internal_Rela *relend;
2918 int num_relocs;
2919 bfd_boolean is_vxworks_tls;
2920
2921 htab = _bfd_sparc_elf_hash_table (info);
2922 BFD_ASSERT (htab != NULL);
2923 symtab_hdr = &elf_symtab_hdr (input_bfd);
2924 sym_hashes = elf_sym_hashes (input_bfd);
2925 local_got_offsets = elf_local_got_offsets (input_bfd);
2926
2927 if (elf_hash_table (info)->hgot == NULL)
2928 got_base = 0;
2929 else
2930 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2931
2932 sreloc = elf_section_data (input_section)->sreloc;
2933 /* We have to handle relocations in vxworks .tls_vars sections
2934 specially, because the dynamic loader is 'weird'. */
2935 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
2936 && !strcmp (input_section->output_section->name,
2937 ".tls_vars"));
2938
2939 rel = relocs;
2940 if (ABI_64_P (output_bfd))
2941 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
2942 else
2943 num_relocs = input_section->reloc_count;
2944 relend = relocs + num_relocs;
2945 for (; rel < relend; rel++)
2946 {
2947 int r_type, tls_type;
2948 reloc_howto_type *howto;
2949 unsigned long r_symndx;
2950 struct elf_link_hash_entry *h;
2951 struct _bfd_sparc_elf_link_hash_entry *eh;
2952 Elf_Internal_Sym *sym;
2953 asection *sec;
2954 bfd_vma relocation, off;
2955 bfd_reloc_status_type r;
2956 bfd_boolean is_plt = FALSE;
2957 bfd_boolean unresolved_reloc;
2958 bfd_boolean resolved_to_zero;
2959 bfd_boolean relative_reloc;
2960
2961 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2962 if (r_type == R_SPARC_GNU_VTINHERIT
2963 || r_type == R_SPARC_GNU_VTENTRY)
2964 continue;
2965
2966 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2967 {
2968 bfd_set_error (bfd_error_bad_value);
2969 return FALSE;
2970 }
2971 howto = _bfd_sparc_elf_howto_table + r_type;
2972
2973 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2974 h = NULL;
2975 sym = NULL;
2976 sec = NULL;
2977 unresolved_reloc = FALSE;
2978 if (r_symndx < symtab_hdr->sh_info)
2979 {
2980 sym = local_syms + r_symndx;
2981 sec = local_sections[r_symndx];
2982 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2983
2984 if (!bfd_link_relocatable (info)
2985 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2986 {
2987 /* Relocate against local STT_GNU_IFUNC symbol. */
2988 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
2989 rel, FALSE);
2990 if (h == NULL)
2991 abort ();
2992
2993 /* Set STT_GNU_IFUNC symbol value. */
2994 h->root.u.def.value = sym->st_value;
2995 h->root.u.def.section = sec;
2996 }
2997 }
2998 else
2999 {
3000 bfd_boolean warned, ignored;
3001
3002 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3003 r_symndx, symtab_hdr, sym_hashes,
3004 h, sec, relocation,
3005 unresolved_reloc, warned, ignored);
3006 if (warned)
3007 {
3008 /* To avoid generating warning messages about truncated
3009 relocations, set the relocation's address to be the same as
3010 the start of this section. */
3011 if (input_section->output_section != NULL)
3012 relocation = input_section->output_section->vma;
3013 else
3014 relocation = 0;
3015 }
3016 }
3017
3018 if (sec != NULL && discarded_section (sec))
3019 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3020 rel, 1, relend, howto, 0, contents);
3021
3022 if (bfd_link_relocatable (info))
3023 continue;
3024
3025 if (h != NULL
3026 && h->type == STT_GNU_IFUNC
3027 && h->def_regular)
3028 {
3029 asection *plt_sec;
3030 const char *name;
3031
3032 if ((input_section->flags & SEC_ALLOC) == 0
3033 || h->plt.offset == (bfd_vma) -1)
3034 abort ();
3035
3036 plt_sec = htab->elf.splt;
3037 if (! plt_sec)
3038 plt_sec =htab->elf.iplt;
3039
3040 switch (r_type)
3041 {
3042 case R_SPARC_GOTDATA_OP:
3043 continue;
3044
3045 case R_SPARC_GOTDATA_OP_HIX22:
3046 case R_SPARC_GOTDATA_OP_LOX10:
3047 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3048 ? R_SPARC_GOT22
3049 : R_SPARC_GOT10);
3050 howto = _bfd_sparc_elf_howto_table + r_type;
3051 /* Fall through. */
3052
3053 case R_SPARC_GOT10:
3054 case R_SPARC_GOT13:
3055 case R_SPARC_GOT22:
3056 if (htab->elf.sgot == NULL)
3057 abort ();
3058 off = h->got.offset;
3059 if (off == (bfd_vma) -1)
3060 abort();
3061 relocation = htab->elf.sgot->output_offset + off - got_base;
3062 goto do_relocation;
3063
3064 case R_SPARC_WPLT30:
3065 case R_SPARC_WDISP30:
3066 relocation = (plt_sec->output_section->vma
3067 + plt_sec->output_offset + h->plt.offset);
3068 goto do_relocation;
3069
3070 case R_SPARC_32:
3071 case R_SPARC_64:
3072 if (bfd_link_pic (info) && h->non_got_ref)
3073 {
3074 Elf_Internal_Rela outrel;
3075 bfd_vma offset;
3076
3077 offset = _bfd_elf_section_offset (output_bfd, info,
3078 input_section,
3079 rel->r_offset);
3080 if (offset == (bfd_vma) -1
3081 || offset == (bfd_vma) -2)
3082 abort();
3083
3084 outrel.r_offset = (input_section->output_section->vma
3085 + input_section->output_offset
3086 + offset);
3087
3088 if (h->dynindx == -1
3089 || h->forced_local
3090 || bfd_link_executable (info))
3091 {
3092 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3093 0, R_SPARC_IRELATIVE);
3094 outrel.r_addend = relocation + rel->r_addend;
3095 }
3096 else
3097 {
3098 if (h->dynindx == -1)
3099 abort();
3100 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3101 outrel.r_addend = rel->r_addend;
3102 }
3103
3104 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3105 continue;
3106 }
3107
3108 relocation = (plt_sec->output_section->vma
3109 + plt_sec->output_offset + h->plt.offset);
3110 goto do_relocation;
3111
3112 case R_SPARC_HI22:
3113 case R_SPARC_LO10:
3114 /* We should only see such relocs in static links. */
3115 if (bfd_link_pic (info))
3116 abort();
3117 relocation = (plt_sec->output_section->vma
3118 + plt_sec->output_offset + h->plt.offset);
3119 goto do_relocation;
3120
3121 default:
3122 if (h->root.root.string)
3123 name = h->root.root.string;
3124 else
3125 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3126 NULL);
3127 _bfd_error_handler
3128 /* xgettext:c-format */
3129 (_("%B: relocation %s against STT_GNU_IFUNC "
3130 "symbol `%s' isn't handled by %s"), input_bfd,
3131 _bfd_sparc_elf_howto_table[r_type].name,
3132 name, __FUNCTION__);
3133 bfd_set_error (bfd_error_bad_value);
3134 return FALSE;
3135 }
3136 }
3137
3138 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
3139 resolved_to_zero = (eh != NULL
3140 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh));
3141
3142 switch (r_type)
3143 {
3144 case R_SPARC_GOTDATA_OP_HIX22:
3145 case R_SPARC_GOTDATA_OP_LOX10:
3146 if (gdop_relative_offset_ok (info, h, relocation))
3147 {
3148 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3149 ? R_SPARC_GOTDATA_HIX22
3150 : R_SPARC_GOTDATA_LOX10);
3151 howto = _bfd_sparc_elf_howto_table + r_type;
3152 }
3153 break;
3154
3155 case R_SPARC_GOTDATA_OP:
3156 if (gdop_relative_offset_ok (info, h, relocation))
3157 {
3158 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3159
3160 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3161 relocation = 0x80000000 | (insn & 0x3e07c01f);
3162 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3163 }
3164 continue;
3165 }
3166
3167 switch (r_type)
3168 {
3169 case R_SPARC_GOTDATA_HIX22:
3170 case R_SPARC_GOTDATA_LOX10:
3171 relocation = gdopoff (info, relocation);
3172 break;
3173
3174 case R_SPARC_GOTDATA_OP_HIX22:
3175 case R_SPARC_GOTDATA_OP_LOX10:
3176 case R_SPARC_GOT10:
3177 case R_SPARC_GOT13:
3178 case R_SPARC_GOT22:
3179 /* Relocation is to the entry for this symbol in the global
3180 offset table. */
3181 if (htab->elf.sgot == NULL)
3182 abort ();
3183
3184 relative_reloc = FALSE;
3185 if (h != NULL)
3186 {
3187 bfd_boolean dyn;
3188
3189 off = h->got.offset;
3190 BFD_ASSERT (off != (bfd_vma) -1);
3191 dyn = elf_hash_table (info)->dynamic_sections_created;
3192
3193 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3194 bfd_link_pic (info),
3195 h)
3196 || (bfd_link_pic (info)
3197 && SYMBOL_REFERENCES_LOCAL (info, h)))
3198 {
3199 /* This is actually a static link, or it is a
3200 -Bsymbolic link and the symbol is defined
3201 locally, or the symbol was forced to be local
3202 because of a version file. We must initialize
3203 this entry in the global offset table. Since the
3204 offset must always be a multiple of 8 for 64-bit
3205 and 4 for 32-bit, we use the least significant bit
3206 to record whether we have initialized it already.
3207
3208 When doing a dynamic link, we create a .rela.got
3209 relocation entry to initialize the value. This
3210 is done in the finish_dynamic_symbol routine. */
3211 if ((off & 1) != 0)
3212 off &= ~1;
3213 else
3214 {
3215 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3216 htab->elf.sgot->contents + off);
3217 h->got.offset |= 1;
3218
3219 if (h->dynindx == -1
3220 && !h->forced_local
3221 && h->root.type != bfd_link_hash_undefweak
3222 && bfd_link_pic (info))
3223 {
3224 /* If this symbol isn't dynamic in PIC
3225 generate R_SPARC_RELATIVE here. */
3226 relative_reloc = TRUE;
3227 }
3228 }
3229 }
3230 else
3231 unresolved_reloc = FALSE;
3232 }
3233 else
3234 {
3235 BFD_ASSERT (local_got_offsets != NULL
3236 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3237
3238 off = local_got_offsets[r_symndx];
3239
3240 /* The offset must always be a multiple of 8 on 64-bit and
3241 4 on 32-bit. We use the least significant bit to record
3242 whether we have already processed this entry. */
3243 if ((off & 1) != 0)
3244 off &= ~1;
3245 else
3246 {
3247 if (bfd_link_pic (info))
3248 {
3249 relative_reloc = TRUE;
3250 }
3251
3252 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3253 htab->elf.sgot->contents + off);
3254 local_got_offsets[r_symndx] |= 1;
3255 }
3256 }
3257
3258 if (relative_reloc)
3259 {
3260 asection *s;
3261 Elf_Internal_Rela outrel;
3262
3263 /* We need to generate a R_SPARC_RELATIVE reloc
3264 for the dynamic linker. */
3265 s = htab->elf.srelgot;
3266 BFD_ASSERT (s != NULL);
3267
3268 outrel.r_offset = (htab->elf.sgot->output_section->vma
3269 + htab->elf.sgot->output_offset
3270 + off);
3271 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3272 0, R_SPARC_RELATIVE);
3273 outrel.r_addend = relocation;
3274 relocation = 0;
3275 sparc_elf_append_rela (output_bfd, s, &outrel);
3276 }
3277
3278 relocation = htab->elf.sgot->output_offset + off - got_base;
3279 break;
3280
3281 case R_SPARC_PLT32:
3282 case R_SPARC_PLT64:
3283 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3284 {
3285 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3286 goto r_sparc_plt32;
3287 }
3288 /* Fall through. */
3289
3290 case R_SPARC_WPLT30:
3291 case R_SPARC_HIPLT22:
3292 case R_SPARC_LOPLT10:
3293 case R_SPARC_PCPLT32:
3294 case R_SPARC_PCPLT22:
3295 case R_SPARC_PCPLT10:
3296 r_sparc_wplt30:
3297 /* Relocation is to the entry for this symbol in the
3298 procedure linkage table. */
3299
3300 if (! ABI_64_P (output_bfd))
3301 {
3302 /* The Solaris native assembler will generate a WPLT30 reloc
3303 for a local symbol if you assemble a call from one
3304 section to another when using -K pic. We treat it as
3305 WDISP30. */
3306 if (h == NULL)
3307 break;
3308 }
3309 /* PR 7027: We need similar behaviour for 64-bit binaries. */
3310 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3311 break;
3312 else
3313 {
3314 BFD_ASSERT (h != NULL);
3315 }
3316
3317 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3318 {
3319 /* We didn't make a PLT entry for this symbol. This
3320 happens when statically linking PIC code, or when
3321 using -Bsymbolic. */
3322 break;
3323 }
3324
3325 relocation = (htab->elf.splt->output_section->vma
3326 + htab->elf.splt->output_offset
3327 + h->plt.offset);
3328 unresolved_reloc = FALSE;
3329 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3330 {
3331 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3332 is_plt = TRUE;
3333 goto r_sparc_plt32;
3334 }
3335 break;
3336
3337 case R_SPARC_PC10:
3338 case R_SPARC_PC22:
3339 case R_SPARC_PC_HH22:
3340 case R_SPARC_PC_HM10:
3341 case R_SPARC_PC_LM22:
3342 if (h != NULL
3343 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3344 break;
3345 /* Fall through. */
3346 case R_SPARC_DISP8:
3347 case R_SPARC_DISP16:
3348 case R_SPARC_DISP32:
3349 case R_SPARC_DISP64:
3350 case R_SPARC_WDISP30:
3351 case R_SPARC_WDISP22:
3352 case R_SPARC_WDISP19:
3353 case R_SPARC_WDISP16:
3354 case R_SPARC_WDISP10:
3355 case R_SPARC_8:
3356 case R_SPARC_16:
3357 case R_SPARC_32:
3358 case R_SPARC_HI22:
3359 case R_SPARC_22:
3360 case R_SPARC_13:
3361 case R_SPARC_LO10:
3362 case R_SPARC_UA16:
3363 case R_SPARC_UA32:
3364 case R_SPARC_10:
3365 case R_SPARC_11:
3366 case R_SPARC_64:
3367 case R_SPARC_OLO10:
3368 case R_SPARC_HH22:
3369 case R_SPARC_HM10:
3370 case R_SPARC_LM22:
3371 case R_SPARC_7:
3372 case R_SPARC_5:
3373 case R_SPARC_6:
3374 case R_SPARC_HIX22:
3375 case R_SPARC_LOX10:
3376 case R_SPARC_H44:
3377 case R_SPARC_M44:
3378 case R_SPARC_L44:
3379 case R_SPARC_H34:
3380 case R_SPARC_UA64:
3381 r_sparc_plt32:
3382 if ((input_section->flags & SEC_ALLOC) == 0
3383 || is_vxworks_tls)
3384 break;
3385
3386 /* Copy dynamic function pointer relocations. Don't generate
3387 dynamic relocations against resolved undefined weak symbols
3388 in PIE. */
3389 if ((bfd_link_pic (info)
3390 && (h == NULL
3391 || ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3392 && !resolved_to_zero)
3393 || h->root.type != bfd_link_hash_undefweak))
3394 && (! howto->pc_relative
3395 || !SYMBOL_CALLS_LOCAL (info, h)))
3396 || (!bfd_link_pic (info)
3397 && h != NULL
3398 && h->dynindx != -1
3399 && !h->non_got_ref
3400 && ((h->def_dynamic
3401 && !h->def_regular)
3402 || (h->root.type == bfd_link_hash_undefweak
3403 && !resolved_to_zero)
3404 || h->root.type == bfd_link_hash_undefined)))
3405 {
3406 Elf_Internal_Rela outrel;
3407 bfd_boolean skip, relocate = FALSE;
3408
3409 /* When generating a shared object, these relocations
3410 are copied into the output file to be resolved at run
3411 time. */
3412
3413 BFD_ASSERT (sreloc != NULL);
3414
3415 skip = FALSE;
3416
3417 outrel.r_offset =
3418 _bfd_elf_section_offset (output_bfd, info, input_section,
3419 rel->r_offset);
3420 if (outrel.r_offset == (bfd_vma) -1)
3421 skip = TRUE;
3422 else if (outrel.r_offset == (bfd_vma) -2)
3423 skip = TRUE, relocate = TRUE;
3424 outrel.r_offset += (input_section->output_section->vma
3425 + input_section->output_offset);
3426
3427 /* Optimize unaligned reloc usage now that we know where
3428 it finally resides. */
3429 switch (r_type)
3430 {
3431 case R_SPARC_16:
3432 if (outrel.r_offset & 1)
3433 r_type = R_SPARC_UA16;
3434 break;
3435 case R_SPARC_UA16:
3436 if (!(outrel.r_offset & 1))
3437 r_type = R_SPARC_16;
3438 break;
3439 case R_SPARC_32:
3440 if (outrel.r_offset & 3)
3441 r_type = R_SPARC_UA32;
3442 break;
3443 case R_SPARC_UA32:
3444 if (!(outrel.r_offset & 3))
3445 r_type = R_SPARC_32;
3446 break;
3447 case R_SPARC_64:
3448 if (outrel.r_offset & 7)
3449 r_type = R_SPARC_UA64;
3450 break;
3451 case R_SPARC_UA64:
3452 if (!(outrel.r_offset & 7))
3453 r_type = R_SPARC_64;
3454 break;
3455 case R_SPARC_DISP8:
3456 case R_SPARC_DISP16:
3457 case R_SPARC_DISP32:
3458 case R_SPARC_DISP64:
3459 /* If the symbol is not dynamic, we should not keep
3460 a dynamic relocation. But an .rela.* slot has been
3461 allocated for it, output R_SPARC_NONE.
3462 FIXME: Add code tracking needed dynamic relocs as
3463 e.g. i386 has. */
3464 if (h->dynindx == -1)
3465 skip = TRUE, relocate = TRUE;
3466 break;
3467 }
3468
3469 if (skip)
3470 memset (&outrel, 0, sizeof outrel);
3471 /* h->dynindx may be -1 if the symbol was marked to
3472 become local. */
3473 else if (h != NULL
3474 && h->dynindx != -1
3475 && (_bfd_sparc_elf_howto_table[r_type].pc_relative
3476 || !bfd_link_pic (info)
3477 || !SYMBOLIC_BIND (info, h)
3478 || !h->def_regular))
3479 {
3480 BFD_ASSERT (h->dynindx != -1);
3481 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3482 outrel.r_addend = rel->r_addend;
3483 }
3484 else
3485 {
3486 if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3487 || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
3488 {
3489 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3490 0, R_SPARC_RELATIVE);
3491 outrel.r_addend = relocation + rel->r_addend;
3492 }
3493 else
3494 {
3495 long indx;
3496
3497 outrel.r_addend = relocation + rel->r_addend;
3498
3499 if (is_plt)
3500 sec = htab->elf.splt;
3501
3502 if (bfd_is_abs_section (sec))
3503 indx = 0;
3504 else if (sec == NULL || sec->owner == NULL)
3505 {
3506 bfd_set_error (bfd_error_bad_value);
3507 return FALSE;
3508 }
3509 else
3510 {
3511 asection *osec;
3512
3513 /* We are turning this relocation into one
3514 against a section symbol. It would be
3515 proper to subtract the symbol's value,
3516 osec->vma, from the emitted reloc addend,
3517 but ld.so expects buggy relocs. */
3518 osec = sec->output_section;
3519 indx = elf_section_data (osec)->dynindx;
3520
3521 if (indx == 0)
3522 {
3523 osec = htab->elf.text_index_section;
3524 indx = elf_section_data (osec)->dynindx;
3525 }
3526
3527 /* FIXME: we really should be able to link non-pic
3528 shared libraries. */
3529 if (indx == 0)
3530 {
3531 BFD_FAIL ();
3532 _bfd_error_handler
3533 (_("%B: probably compiled without -fPIC?"),
3534 input_bfd);
3535 bfd_set_error (bfd_error_bad_value);
3536 return FALSE;
3537 }
3538 }
3539
3540 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3541 r_type);
3542 }
3543 }
3544
3545 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3546
3547 /* This reloc will be computed at runtime, so there's no
3548 need to do anything now. */
3549 if (! relocate)
3550 continue;
3551 }
3552 break;
3553
3554 case R_SPARC_TLS_GD_HI22:
3555 if (! ABI_64_P (input_bfd)
3556 && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
3557 {
3558 /* R_SPARC_REV32 used the same reloc number as
3559 R_SPARC_TLS_GD_HI22. */
3560 r_type = R_SPARC_REV32;
3561 break;
3562 }
3563 /* Fall through */
3564
3565 case R_SPARC_TLS_GD_LO10:
3566 case R_SPARC_TLS_IE_HI22:
3567 case R_SPARC_TLS_IE_LO10:
3568 r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
3569 tls_type = GOT_UNKNOWN;
3570 if (h == NULL && local_got_offsets)
3571 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3572 else if (h != NULL)
3573 {
3574 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3575 if (bfd_link_executable (info)
3576 && h->dynindx == -1
3577 && tls_type == GOT_TLS_IE)
3578 switch (SPARC_ELF_R_TYPE (rel->r_info))
3579 {
3580 case R_SPARC_TLS_GD_HI22:
3581 case R_SPARC_TLS_IE_HI22:
3582 r_type = R_SPARC_TLS_LE_HIX22;
3583 break;
3584 default:
3585 r_type = R_SPARC_TLS_LE_LOX10;
3586 break;
3587 }
3588 }
3589 if (tls_type == GOT_TLS_IE)
3590 switch (r_type)
3591 {
3592 case R_SPARC_TLS_GD_HI22:
3593 r_type = R_SPARC_TLS_IE_HI22;
3594 break;
3595 case R_SPARC_TLS_GD_LO10:
3596 r_type = R_SPARC_TLS_IE_LO10;
3597 break;
3598 }
3599
3600 if (r_type == R_SPARC_TLS_LE_HIX22)
3601 {
3602 relocation = tpoff (info, relocation);
3603 break;
3604 }
3605 if (r_type == R_SPARC_TLS_LE_LOX10)
3606 {
3607 /* Change add into xor. */
3608 relocation = tpoff (info, relocation);
3609 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3610 contents + rel->r_offset)
3611 | 0x80182000), contents + rel->r_offset);
3612 break;
3613 }
3614
3615 if (h != NULL)
3616 {
3617 off = h->got.offset;
3618 h->got.offset |= 1;
3619 }
3620 else
3621 {
3622 BFD_ASSERT (local_got_offsets != NULL);
3623 off = local_got_offsets[r_symndx];
3624 local_got_offsets[r_symndx] |= 1;
3625 }
3626
3627 r_sparc_tlsldm:
3628 if (htab->elf.sgot == NULL)
3629 abort ();
3630
3631 if ((off & 1) != 0)
3632 off &= ~1;
3633 else
3634 {
3635 Elf_Internal_Rela outrel;
3636 int dr_type, indx;
3637
3638 if (htab->elf.srelgot == NULL)
3639 abort ();
3640
3641 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3642 htab->elf.sgot->contents + off);
3643 outrel.r_offset = (htab->elf.sgot->output_section->vma
3644 + htab->elf.sgot->output_offset + off);
3645 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3646 if (r_type == R_SPARC_TLS_IE_HI22
3647 || r_type == R_SPARC_TLS_IE_LO10)
3648 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3649 else
3650 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3651 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3652 outrel.r_addend = relocation - dtpoff_base (info);
3653 else
3654 outrel.r_addend = 0;
3655 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
3656 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3657
3658 if (r_type == R_SPARC_TLS_GD_HI22
3659 || r_type == R_SPARC_TLS_GD_LO10)
3660 {
3661 if (indx == 0)
3662 {
3663 BFD_ASSERT (! unresolved_reloc);
3664 SPARC_ELF_PUT_WORD (htab, output_bfd,
3665 relocation - dtpoff_base (info),
3666 (htab->elf.sgot->contents + off
3667 + SPARC_ELF_WORD_BYTES (htab)));
3668 }
3669 else
3670 {
3671 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3672 (htab->elf.sgot->contents + off
3673 + SPARC_ELF_WORD_BYTES (htab)));
3674 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3675 SPARC_ELF_DTPOFF_RELOC (htab));
3676 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
3677 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
3678 &outrel);
3679 }
3680 }
3681 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3682 {
3683 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3684 (htab->elf.sgot->contents + off
3685 + SPARC_ELF_WORD_BYTES (htab)));
3686 }
3687 }
3688
3689 if (off >= (bfd_vma) -2)
3690 abort ();
3691
3692 relocation = htab->elf.sgot->output_offset + off - got_base;
3693 unresolved_reloc = FALSE;
3694 howto = _bfd_sparc_elf_howto_table + r_type;
3695 break;
3696
3697 case R_SPARC_TLS_LDM_HI22:
3698 case R_SPARC_TLS_LDM_LO10:
3699 if (! bfd_link_pic (info))
3700 {
3701 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3702 continue;
3703 }
3704 off = htab->tls_ldm_got.offset;
3705 htab->tls_ldm_got.offset |= 1;
3706 goto r_sparc_tlsldm;
3707
3708 case R_SPARC_TLS_LDO_HIX22:
3709 case R_SPARC_TLS_LDO_LOX10:
3710 if (bfd_link_pic (info))
3711 {
3712 relocation -= dtpoff_base (info);
3713 break;
3714 }
3715
3716 r_type = (r_type == R_SPARC_TLS_LDO_HIX22
3717 ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
3718 /* Fall through. */
3719
3720 case R_SPARC_TLS_LE_HIX22:
3721 case R_SPARC_TLS_LE_LOX10:
3722 if (!bfd_link_executable (info))
3723 {
3724 Elf_Internal_Rela outrel;
3725 bfd_boolean skip;
3726
3727 BFD_ASSERT (sreloc != NULL);
3728 skip = FALSE;
3729 outrel.r_offset =
3730 _bfd_elf_section_offset (output_bfd, info, input_section,
3731 rel->r_offset);
3732 if (outrel.r_offset == (bfd_vma) -1)
3733 skip = TRUE;
3734 else if (outrel.r_offset == (bfd_vma) -2)
3735 skip = TRUE;
3736 outrel.r_offset += (input_section->output_section->vma
3737 + input_section->output_offset);
3738 if (skip)
3739 memset (&outrel, 0, sizeof outrel);
3740 else
3741 {
3742 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3743 outrel.r_addend = relocation - dtpoff_base (info)
3744 + rel->r_addend;
3745 }
3746
3747 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3748 continue;
3749 }
3750 relocation = tpoff (info, relocation);
3751 break;
3752
3753 case R_SPARC_TLS_LDM_CALL:
3754 if (bfd_link_executable (info))
3755 {
3756 /* mov %g0, %o0 */
3757 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3758 continue;
3759 }
3760 /* Fall through */
3761
3762 case R_SPARC_TLS_GD_CALL:
3763 tls_type = GOT_UNKNOWN;
3764 if (h == NULL && local_got_offsets)
3765 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3766 else if (h != NULL)
3767 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3768 if (bfd_link_executable (info)
3769 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3770 {
3771 Elf_Internal_Rela *rel2;
3772 bfd_vma insn;
3773
3774 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
3775 {
3776 /* GD -> LE */
3777 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3778 continue;
3779 }
3780
3781 /* GD -> IE */
3782 if (rel + 1 < relend
3783 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3784 && rel[1].r_offset == rel->r_offset + 4
3785 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3786 && (((insn = bfd_get_32 (input_bfd,
3787 contents + rel[1].r_offset))
3788 >> 25) & 0x1f) == 8)
3789 {
3790 /* We have
3791 call __tls_get_addr, %tgd_call(foo)
3792 add %reg1, %reg2, %o0, %tgd_add(foo)
3793 and change it into IE:
3794 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3795 add %g7, %o0, %o0, %tie_add(foo).
3796 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3797 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3798 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3799 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3800 contents + rel->r_offset);
3801 bfd_put_32 (output_bfd, 0x9001c008,
3802 contents + rel->r_offset + 4);
3803 rel++;
3804 continue;
3805 }
3806
3807 /* We cannot just overwrite the delay slot instruction,
3808 as it might be what puts the %o0 argument to
3809 __tls_get_addr into place. So we have to transpose
3810 the delay slot with the add we patch in. */
3811 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3812 bfd_put_32 (output_bfd, insn,
3813 contents + rel->r_offset);
3814 bfd_put_32 (output_bfd, 0x9001c008,
3815 contents + rel->r_offset + 4);
3816
3817 rel2 = rel;
3818 while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3819 rel->r_offset + 4))
3820 != NULL)
3821 {
3822 /* If the instruction we moved has a relocation attached to
3823 it, adjust the offset so that it will apply to the correct
3824 instruction. */
3825 rel2->r_offset -= 4;
3826 }
3827 continue;
3828 }
3829
3830 h = (struct elf_link_hash_entry *)
3831 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3832 FALSE, TRUE);
3833 BFD_ASSERT (h != NULL);
3834 r_type = R_SPARC_WPLT30;
3835 howto = _bfd_sparc_elf_howto_table + r_type;
3836 goto r_sparc_wplt30;
3837
3838 case R_SPARC_TLS_GD_ADD:
3839 tls_type = GOT_UNKNOWN;
3840 if (h == NULL && local_got_offsets)
3841 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3842 else if (h != NULL)
3843 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3844 if (! bfd_link_pic (info) || tls_type == GOT_TLS_IE)
3845 {
3846 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3847 changed into IE:
3848 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3849 or LE:
3850 add %g7, %reg2, %reg3. */
3851 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3852 if ((h != NULL && h->dynindx != -1) || bfd_link_pic (info))
3853 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
3854 else
3855 relocation = (insn & ~0x7c000) | 0x1c000;
3856 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3857 }
3858 continue;
3859
3860 case R_SPARC_TLS_LDM_ADD:
3861 if (! bfd_link_pic (info))
3862 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3863 continue;
3864
3865 case R_SPARC_TLS_LDO_ADD:
3866 if (! bfd_link_pic (info))
3867 {
3868 /* Change rs1 into %g7. */
3869 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3870 insn = (insn & ~0x7c000) | 0x1c000;
3871 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3872 }
3873 continue;
3874
3875 case R_SPARC_TLS_IE_LD:
3876 case R_SPARC_TLS_IE_LDX:
3877 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
3878 {
3879 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3880 int rs2 = insn & 0x1f;
3881 int rd = (insn >> 25) & 0x1f;
3882
3883 if (rs2 == rd)
3884 relocation = SPARC_NOP;
3885 else
3886 relocation = 0x80100000 | (insn & 0x3e00001f);
3887 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3888 }
3889 continue;
3890
3891 case R_SPARC_TLS_IE_ADD:
3892 /* Totally useless relocation. */
3893 continue;
3894
3895 case R_SPARC_TLS_DTPOFF32:
3896 case R_SPARC_TLS_DTPOFF64:
3897 relocation -= dtpoff_base (info);
3898 break;
3899
3900 default:
3901 break;
3902 }
3903
3904 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3905 because such sections are not SEC_ALLOC and thus ld.so will
3906 not process them. */
3907 if (unresolved_reloc
3908 && !((input_section->flags & SEC_DEBUGGING) != 0
3909 && h->def_dynamic)
3910 && _bfd_elf_section_offset (output_bfd, info, input_section,
3911 rel->r_offset) != (bfd_vma) -1)
3912 _bfd_error_handler
3913 /* xgettext:c-format */
3914 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
3915 input_bfd,
3916 input_section,
3917 rel->r_offset,
3918 howto->name,
3919 h->root.root.string);
3920
3921 r = bfd_reloc_continue;
3922 if (r_type == R_SPARC_OLO10)
3923 {
3924 bfd_vma x;
3925
3926 if (! ABI_64_P (output_bfd))
3927 abort ();
3928
3929 relocation += rel->r_addend;
3930 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3931
3932 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3933 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3934 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3935
3936 r = bfd_check_overflow (howto->complain_on_overflow,
3937 howto->bitsize, howto->rightshift,
3938 bfd_arch_bits_per_address (input_bfd),
3939 relocation);
3940 }
3941 else if (r_type == R_SPARC_WDISP16)
3942 {
3943 bfd_vma x;
3944
3945 relocation += rel->r_addend;
3946 relocation -= (input_section->output_section->vma
3947 + input_section->output_offset);
3948 relocation -= rel->r_offset;
3949
3950 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3951 x |= ((((relocation >> 2) & 0xc000) << 6)
3952 | ((relocation >> 2) & 0x3fff));
3953 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3954
3955 r = bfd_check_overflow (howto->complain_on_overflow,
3956 howto->bitsize, howto->rightshift,
3957 bfd_arch_bits_per_address (input_bfd),
3958 relocation);
3959 }
3960 else if (r_type == R_SPARC_WDISP10)
3961 {
3962 bfd_vma x;
3963
3964 relocation += rel->r_addend;
3965 relocation -= (input_section->output_section->vma
3966 + input_section->output_offset);
3967 relocation -= rel->r_offset;
3968
3969 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3970 x |= ((((relocation >> 2) & 0x300) << 11)
3971 | (((relocation >> 2) & 0xff) << 5));
3972 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3973
3974 r = bfd_check_overflow (howto->complain_on_overflow,
3975 howto->bitsize, howto->rightshift,
3976 bfd_arch_bits_per_address (input_bfd),
3977 relocation);
3978 }
3979 else if (r_type == R_SPARC_REV32)
3980 {
3981 bfd_vma x;
3982
3983 relocation = relocation + rel->r_addend;
3984
3985 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3986 x = x + relocation;
3987 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
3988 r = bfd_reloc_ok;
3989 }
3990 else if (r_type == R_SPARC_TLS_LDO_HIX22
3991 || r_type == R_SPARC_TLS_LE_HIX22)
3992 {
3993 bfd_vma x;
3994
3995 relocation += rel->r_addend;
3996 if (r_type == R_SPARC_TLS_LE_HIX22)
3997 relocation ^= MINUS_ONE;
3998
3999 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4000 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4001 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4002 r = bfd_reloc_ok;
4003 }
4004 else if (r_type == R_SPARC_TLS_LDO_LOX10
4005 || r_type == R_SPARC_TLS_LE_LOX10)
4006 {
4007 bfd_vma x;
4008
4009 relocation += rel->r_addend;
4010 relocation &= 0x3ff;
4011 if (r_type == R_SPARC_TLS_LE_LOX10)
4012 relocation |= 0x1c00;
4013
4014 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4015 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4016 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4017
4018 r = bfd_reloc_ok;
4019 }
4020 else if (r_type == R_SPARC_HIX22
4021 || r_type == R_SPARC_GOTDATA_HIX22
4022 || r_type == R_SPARC_GOTDATA_OP_HIX22)
4023 {
4024 bfd_vma x;
4025
4026 relocation += rel->r_addend;
4027 if (r_type == R_SPARC_HIX22
4028 || (bfd_signed_vma) relocation < 0)
4029 relocation = relocation ^ MINUS_ONE;
4030
4031 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4032 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4033 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4034
4035 r = bfd_check_overflow (howto->complain_on_overflow,
4036 howto->bitsize, howto->rightshift,
4037 bfd_arch_bits_per_address (input_bfd),
4038 relocation);
4039 }
4040 else if (r_type == R_SPARC_LOX10
4041 || r_type == R_SPARC_GOTDATA_LOX10
4042 || r_type == R_SPARC_GOTDATA_OP_LOX10)
4043 {
4044 bfd_vma x;
4045
4046 relocation += rel->r_addend;
4047 if (r_type == R_SPARC_LOX10
4048 || (bfd_signed_vma) relocation < 0)
4049 relocation = (relocation & 0x3ff) | 0x1c00;
4050 else
4051 relocation = (relocation & 0x3ff);
4052
4053 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4054 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4055 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4056
4057 r = bfd_reloc_ok;
4058 }
4059 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
4060 && sec_do_relax (input_section)
4061 && rel->r_offset + 4 < input_section->size)
4062 {
4063 #define G0 0
4064 #define O7 15
4065 #define XCC (2 << 20)
4066 #define COND(x) (((x)&0xf)<<25)
4067 #define CONDA COND(0x8)
4068 #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
4069 #define INSN_BA (F2(0,2) | CONDA)
4070 #define INSN_OR F3(2, 0x2, 0)
4071 #define INSN_NOP F2(0,4)
4072
4073 bfd_vma x, y;
4074
4075 /* If the instruction is a call with either:
4076 restore
4077 arithmetic instruction with rd == %o7
4078 where rs1 != %o7 and rs2 if it is register != %o7
4079 then we can optimize if the call destination is near
4080 by changing the call into a branch always. */
4081 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4082 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
4083 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
4084 {
4085 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
4086 || ((y & OP3(0x28)) == 0 /* arithmetic */
4087 && (y & RD(~0)) == RD(O7)))
4088 && (y & RS1(~0)) != RS1(O7)
4089 && ((y & F3I(~0))
4090 || (y & RS2(~0)) != RS2(O7)))
4091 {
4092 bfd_vma reloc;
4093
4094 reloc = relocation + rel->r_addend - rel->r_offset;
4095 reloc -= (input_section->output_section->vma
4096 + input_section->output_offset);
4097
4098 /* Ensure the branch fits into simm22. */
4099 if ((reloc & 3) == 0
4100 && ((reloc & ~(bfd_vma)0x7fffff) == 0
4101 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4102 {
4103 reloc >>= 2;
4104
4105 /* Check whether it fits into simm19. */
4106 if (((reloc & 0x3c0000) == 0
4107 || (reloc & 0x3c0000) == 0x3c0000)
4108 && (ABI_64_P (output_bfd)
4109 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4110 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4111 else
4112 x = INSN_BA | (reloc & 0x3fffff); /* ba */
4113 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4114 r = bfd_reloc_ok;
4115 if (rel->r_offset >= 4
4116 && (y & (0xffffffff ^ RS1(~0)))
4117 == (INSN_OR | RD(O7) | RS2(G0)))
4118 {
4119 bfd_vma z;
4120 unsigned int reg;
4121
4122 z = bfd_get_32 (input_bfd,
4123 contents + rel->r_offset - 4);
4124 if ((z & (0xffffffff ^ RD(~0)))
4125 != (INSN_OR | RS1(O7) | RS2(G0)))
4126 continue;
4127
4128 /* The sequence was
4129 or %o7, %g0, %rN
4130 call foo
4131 or %rN, %g0, %o7
4132
4133 If call foo was replaced with ba, replace
4134 or %rN, %g0, %o7 with nop. */
4135
4136 reg = (y & RS1(~0)) >> 14;
4137 if (reg != ((z & RD(~0)) >> 25)
4138 || reg == G0 || reg == O7)
4139 continue;
4140
4141 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4142 contents + rel->r_offset + 4);
4143 }
4144
4145 }
4146 }
4147 }
4148 }
4149
4150 if (r == bfd_reloc_continue)
4151 {
4152 do_relocation:
4153 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4154 contents, rel->r_offset,
4155 relocation, rel->r_addend);
4156 }
4157 if (r != bfd_reloc_ok)
4158 {
4159 switch (r)
4160 {
4161 default:
4162 case bfd_reloc_outofrange:
4163 abort ();
4164 case bfd_reloc_overflow:
4165 {
4166 const char *name;
4167
4168 /* The Solaris native linker silently disregards overflows.
4169 We don't, but this breaks stabs debugging info, whose
4170 relocations are only 32-bits wide. Ignore overflows in
4171 this case and also for discarded entries. */
4172 if ((r_type == R_SPARC_32
4173 || r_type == R_SPARC_UA32
4174 || r_type == R_SPARC_DISP32)
4175 && (((input_section->flags & SEC_DEBUGGING) != 0
4176 && strcmp (bfd_section_name (input_bfd,
4177 input_section),
4178 ".stab") == 0)
4179 || _bfd_elf_section_offset (output_bfd, info,
4180 input_section,
4181 rel->r_offset)
4182 == (bfd_vma)-1))
4183 break;
4184
4185 if (h != NULL)
4186 {
4187 /* Assume this is a call protected by other code that
4188 detect the symbol is undefined. If this is the case,
4189 we can safely ignore the overflow. If not, the
4190 program is hosed anyway, and a little warning isn't
4191 going to help. */
4192 if (h->root.type == bfd_link_hash_undefweak
4193 && howto->pc_relative)
4194 break;
4195
4196 name = NULL;
4197 }
4198 else
4199 {
4200 name = bfd_elf_string_from_elf_section (input_bfd,
4201 symtab_hdr->sh_link,
4202 sym->st_name);
4203 if (name == NULL)
4204 return FALSE;
4205 if (*name == '\0')
4206 name = bfd_section_name (input_bfd, sec);
4207 }
4208 (*info->callbacks->reloc_overflow)
4209 (info, (h ? &h->root : NULL), name, howto->name,
4210 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4211 }
4212 break;
4213 }
4214 }
4215 }
4216
4217 return TRUE;
4218 }
4219
4220 /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4221 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4222 is the offset of the associated .got.plt entry from
4223 _GLOBAL_OFFSET_TABLE_. */
4224
4225 static void
4226 sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4227 bfd_vma plt_offset, bfd_vma plt_index,
4228 bfd_vma got_offset)
4229 {
4230 bfd_vma got_base;
4231 const bfd_vma *plt_entry;
4232 struct _bfd_sparc_elf_link_hash_table *htab;
4233 bfd_byte *loc;
4234 Elf_Internal_Rela rela;
4235
4236 htab = _bfd_sparc_elf_hash_table (info);
4237 BFD_ASSERT (htab != NULL);
4238
4239 if (bfd_link_pic (info))
4240 {
4241 plt_entry = sparc_vxworks_shared_plt_entry;
4242 got_base = 0;
4243 }
4244 else
4245 {
4246 plt_entry = sparc_vxworks_exec_plt_entry;
4247 got_base = (htab->elf.hgot->root.u.def.value
4248 + htab->elf.hgot->root.u.def.section->output_offset
4249 + htab->elf.hgot->root.u.def.section->output_section->vma);
4250 }
4251
4252 /* Fill in the entry in the procedure linkage table. */
4253 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
4254 htab->elf.splt->contents + plt_offset);
4255 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
4256 htab->elf.splt->contents + plt_offset + 4);
4257 bfd_put_32 (output_bfd, plt_entry[2],
4258 htab->elf.splt->contents + plt_offset + 8);
4259 bfd_put_32 (output_bfd, plt_entry[3],
4260 htab->elf.splt->contents + plt_offset + 12);
4261 bfd_put_32 (output_bfd, plt_entry[4],
4262 htab->elf.splt->contents + plt_offset + 16);
4263 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
4264 htab->elf.splt->contents + plt_offset + 20);
4265 /* PC-relative displacement for a branch to the start of
4266 the PLT section. */
4267 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4268 & 0x003fffff),
4269 htab->elf.splt->contents + plt_offset + 24);
4270 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
4271 htab->elf.splt->contents + plt_offset + 28);
4272
4273 /* Fill in the .got.plt entry, pointing initially at the
4274 second half of the PLT entry. */
4275 BFD_ASSERT (htab->elf.sgotplt != NULL);
4276 bfd_put_32 (output_bfd,
4277 htab->elf.splt->output_section->vma
4278 + htab->elf.splt->output_offset
4279 + plt_offset + 20,
4280 htab->elf.sgotplt->contents + got_offset);
4281
4282 /* Add relocations to .rela.plt.unloaded. */
4283 if (!bfd_link_pic (info))
4284 {
4285 loc = (htab->srelplt2->contents
4286 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4287
4288 /* Relocate the initial sethi. */
4289 rela.r_offset = (htab->elf.splt->output_section->vma
4290 + htab->elf.splt->output_offset
4291 + plt_offset);
4292 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4293 rela.r_addend = got_offset;
4294 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4295 loc += sizeof (Elf32_External_Rela);
4296
4297 /* Likewise the following or. */
4298 rela.r_offset += 4;
4299 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4300 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4301 loc += sizeof (Elf32_External_Rela);
4302
4303 /* Relocate the .got.plt entry. */
4304 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4305 + htab->elf.sgotplt->output_offset
4306 + got_offset);
4307 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4308 rela.r_addend = plt_offset + 20;
4309 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4310 }
4311 }
4312
4313 /* Finish up dynamic symbol handling. We set the contents of various
4314 dynamic sections here. */
4315
4316 bfd_boolean
4317 _bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4318 struct bfd_link_info *info,
4319 struct elf_link_hash_entry *h,
4320 Elf_Internal_Sym *sym)
4321 {
4322 struct _bfd_sparc_elf_link_hash_table *htab;
4323 const struct elf_backend_data *bed;
4324 struct _bfd_sparc_elf_link_hash_entry *eh;
4325 bfd_boolean local_undefweak;
4326
4327 htab = _bfd_sparc_elf_hash_table (info);
4328 BFD_ASSERT (htab != NULL);
4329 bed = get_elf_backend_data (output_bfd);
4330
4331 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4332
4333 /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4334 resolved undefined weak symbols in executable so that their
4335 references have value 0 at run-time. */
4336 local_undefweak = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
4337
4338 if (h->plt.offset != (bfd_vma) -1)
4339 {
4340 asection *splt;
4341 asection *srela;
4342 Elf_Internal_Rela rela;
4343 bfd_byte *loc;
4344 bfd_vma r_offset, got_offset;
4345 int rela_index;
4346
4347 /* When building a static executable, use .iplt and
4348 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4349 if (htab->elf.splt != NULL)
4350 {
4351 splt = htab->elf.splt;
4352 srela = htab->elf.srelplt;
4353 }
4354 else
4355 {
4356 splt = htab->elf.iplt;
4357 srela = htab->elf.irelplt;
4358 }
4359
4360 if (splt == NULL || srela == NULL)
4361 abort ();
4362
4363 /* Fill in the entry in the .rela.plt section. */
4364 if (htab->is_vxworks)
4365 {
4366 /* Work out the index of this PLT entry. */
4367 rela_index = ((h->plt.offset - htab->plt_header_size)
4368 / htab->plt_entry_size);
4369
4370 /* Calculate the offset of the associated .got.plt entry.
4371 The first three entries are reserved. */
4372 got_offset = (rela_index + 3) * 4;
4373
4374 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4375 rela_index, got_offset);
4376
4377
4378 /* On VxWorks, the relocation points to the .got.plt entry,
4379 not the .plt entry. */
4380 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4381 + htab->elf.sgotplt->output_offset
4382 + got_offset);
4383 rela.r_addend = 0;
4384 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4385 R_SPARC_JMP_SLOT);
4386 }
4387 else
4388 {
4389 bfd_boolean ifunc = FALSE;
4390
4391 /* Fill in the entry in the procedure linkage table. */
4392 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4393 h->plt.offset, splt->size,
4394 &r_offset);
4395
4396 if (h == NULL
4397 || h->dynindx == -1
4398 || ((bfd_link_executable (info)
4399 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4400 && h->def_regular
4401 && h->type == STT_GNU_IFUNC))
4402 {
4403 ifunc = TRUE;
4404 BFD_ASSERT (h == NULL
4405 || (h->type == STT_GNU_IFUNC
4406 && h->def_regular
4407 && (h->root.type == bfd_link_hash_defined
4408 || h->root.type == bfd_link_hash_defweak)));
4409 }
4410
4411 rela.r_offset = r_offset
4412 + (splt->output_section->vma + splt->output_offset);
4413 if (ABI_64_P (output_bfd)
4414 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
4415 {
4416 if (ifunc)
4417 {
4418 rela.r_addend = (h->root.u.def.section->output_section->vma
4419 + h->root.u.def.section->output_offset
4420 + h->root.u.def.value);
4421 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4422 R_SPARC_IRELATIVE);
4423 }
4424 else
4425 {
4426 rela.r_addend = (-(h->plt.offset + 4)
4427 - splt->output_section->vma
4428 - splt->output_offset);
4429 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4430 R_SPARC_JMP_SLOT);
4431 }
4432 }
4433 else
4434 {
4435 if (ifunc)
4436 {
4437 rela.r_addend = (h->root.u.def.section->output_section->vma
4438 + h->root.u.def.section->output_offset
4439 + h->root.u.def.value);
4440 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4441 R_SPARC_JMP_IREL);
4442 }
4443 else
4444 {
4445 rela.r_addend = 0;
4446 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4447 R_SPARC_JMP_SLOT);
4448 }
4449 }
4450 }
4451
4452 /* Adjust for the first 4 reserved elements in the .plt section
4453 when setting the offset in the .rela.plt section.
4454 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4455 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4456
4457 loc = srela->contents;
4458 loc += rela_index * bed->s->sizeof_rela;
4459 bed->s->swap_reloca_out (output_bfd, &rela, loc);
4460
4461 if (!local_undefweak
4462 && !h->def_regular)
4463 {
4464 /* Mark the symbol as undefined, rather than as defined in
4465 the .plt section. Leave the value alone. */
4466 sym->st_shndx = SHN_UNDEF;
4467 /* If the symbol is weak, we do need to clear the value.
4468 Otherwise, the PLT entry would provide a definition for
4469 the symbol even if the symbol wasn't defined anywhere,
4470 and so the symbol would never be NULL. */
4471 if (!h->ref_regular_nonweak)
4472 sym->st_value = 0;
4473 }
4474 }
4475
4476 /* Don't generate dynamic GOT relocation against undefined weak
4477 symbol in executable. */
4478 if (h->got.offset != (bfd_vma) -1
4479 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4480 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
4481 && !local_undefweak)
4482 {
4483 asection *sgot;
4484 asection *srela;
4485 Elf_Internal_Rela rela;
4486
4487 /* This symbol has an entry in the GOT. Set it up. */
4488
4489 sgot = htab->elf.sgot;
4490 srela = htab->elf.srelgot;
4491 BFD_ASSERT (sgot != NULL && srela != NULL);
4492
4493 rela.r_offset = (sgot->output_section->vma
4494 + sgot->output_offset
4495 + (h->got.offset &~ (bfd_vma) 1));
4496
4497 /* If this is a -Bsymbolic link, and the symbol is defined
4498 locally, we just want to emit a RELATIVE reloc. Likewise if
4499 the symbol was forced to be local because of a version file.
4500 The entry in the global offset table will already have been
4501 initialized in the relocate_section function. */
4502 if (! bfd_link_pic (info)
4503 && h->type == STT_GNU_IFUNC
4504 && h->def_regular)
4505 {
4506 asection *plt;
4507
4508 /* We load the GOT entry with the PLT entry. */
4509 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4510 SPARC_ELF_PUT_WORD (htab, output_bfd,
4511 (plt->output_section->vma
4512 + plt->output_offset + h->plt.offset),
4513 htab->elf.sgot->contents
4514 + (h->got.offset & ~(bfd_vma) 1));
4515 return TRUE;
4516 }
4517 else if (bfd_link_pic (info)
4518 && SYMBOL_REFERENCES_LOCAL (info, h))
4519 {
4520 asection *sec = h->root.u.def.section;
4521 if (h->type == STT_GNU_IFUNC)
4522 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4523 else
4524 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
4525 rela.r_addend = (h->root.u.def.value
4526 + sec->output_section->vma
4527 + sec->output_offset);
4528 }
4529 else
4530 {
4531 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4532 rela.r_addend = 0;
4533 }
4534
4535 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4536 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4537 sparc_elf_append_rela (output_bfd, srela, &rela);
4538 }
4539
4540 if (h->needs_copy)
4541 {
4542 asection *s;
4543 Elf_Internal_Rela rela;
4544
4545 /* This symbols needs a copy reloc. Set it up. */
4546 BFD_ASSERT (h->dynindx != -1);
4547
4548 rela.r_offset = (h->root.u.def.value
4549 + h->root.u.def.section->output_section->vma
4550 + h->root.u.def.section->output_offset);
4551 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4552 rela.r_addend = 0;
4553 if (h->root.u.def.section == htab->elf.sdynrelro)
4554 s = htab->elf.sreldynrelro;
4555 else
4556 s = htab->elf.srelbss;
4557 sparc_elf_append_rela (output_bfd, s, &rela);
4558 }
4559
4560 /* Mark some specially defined symbols as absolute. On VxWorks,
4561 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4562 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
4563 if (sym != NULL
4564 && (h == htab->elf.hdynamic
4565 || (!htab->is_vxworks
4566 && (h == htab->elf.hgot || h == htab->elf.hplt))))
4567 sym->st_shndx = SHN_ABS;
4568
4569 return TRUE;
4570 }
4571
4572 /* Finish up the dynamic sections. */
4573
4574 static bfd_boolean
4575 sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4576 bfd *dynobj, asection *sdyn,
4577 asection *splt ATTRIBUTE_UNUSED)
4578 {
4579 struct _bfd_sparc_elf_link_hash_table *htab;
4580 const struct elf_backend_data *bed;
4581 bfd_byte *dyncon, *dynconend;
4582 size_t dynsize;
4583 int stt_regidx = -1;
4584 bfd_boolean abi_64_p;
4585
4586 htab = _bfd_sparc_elf_hash_table (info);
4587 BFD_ASSERT (htab != NULL);
4588 bed = get_elf_backend_data (output_bfd);
4589 dynsize = bed->s->sizeof_dyn;
4590 dynconend = sdyn->contents + sdyn->size;
4591 abi_64_p = ABI_64_P (output_bfd);
4592 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4593 {
4594 Elf_Internal_Dyn dyn;
4595 bfd_boolean size;
4596
4597 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4598
4599 if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
4600 {
4601 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4602 not to the start of the PLT. */
4603 if (htab->elf.sgotplt)
4604 {
4605 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4606 + htab->elf.sgotplt->output_offset);
4607 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4608 }
4609 }
4610 else if (htab->is_vxworks
4611 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4612 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4613 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4614 {
4615 if (stt_regidx == -1)
4616 {
4617 stt_regidx =
4618 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4619 if (stt_regidx == -1)
4620 return FALSE;
4621 }
4622 dyn.d_un.d_val = stt_regidx++;
4623 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4624 }
4625 else
4626 {
4627 asection *s;
4628
4629 switch (dyn.d_tag)
4630 {
4631 case DT_PLTGOT:
4632 s = htab->elf.splt;
4633 size = FALSE;
4634 break;
4635 case DT_PLTRELSZ:
4636 s = htab->elf.srelplt;
4637 size = TRUE;
4638 break;
4639 case DT_JMPREL:
4640 s = htab->elf.srelplt;
4641 size = FALSE;
4642 break;
4643 default:
4644 continue;
4645 }
4646
4647 if (s == NULL)
4648 dyn.d_un.d_val = 0;
4649 else
4650 {
4651 if (!size)
4652 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4653 else
4654 dyn.d_un.d_val = s->size;
4655 }
4656 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4657 }
4658 }
4659 return TRUE;
4660 }
4661
4662 /* Install the first PLT entry in a VxWorks executable and make sure that
4663 .rela.plt.unloaded relocations have the correct symbol indexes. */
4664
4665 static void
4666 sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4667 {
4668 struct _bfd_sparc_elf_link_hash_table *htab;
4669 Elf_Internal_Rela rela;
4670 bfd_vma got_base;
4671 bfd_byte *loc;
4672
4673 htab = _bfd_sparc_elf_hash_table (info);
4674 BFD_ASSERT (htab != NULL);
4675
4676 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4677 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4678 + htab->elf.hgot->root.u.def.section->output_offset
4679 + htab->elf.hgot->root.u.def.value);
4680
4681 /* Install the initial PLT entry. */
4682 bfd_put_32 (output_bfd,
4683 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
4684 htab->elf.splt->contents);
4685 bfd_put_32 (output_bfd,
4686 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
4687 htab->elf.splt->contents + 4);
4688 bfd_put_32 (output_bfd,
4689 sparc_vxworks_exec_plt0_entry[2],
4690 htab->elf.splt->contents + 8);
4691 bfd_put_32 (output_bfd,
4692 sparc_vxworks_exec_plt0_entry[3],
4693 htab->elf.splt->contents + 12);
4694 bfd_put_32 (output_bfd,
4695 sparc_vxworks_exec_plt0_entry[4],
4696 htab->elf.splt->contents + 16);
4697
4698 loc = htab->srelplt2->contents;
4699
4700 /* Add an unloaded relocation for the initial entry's "sethi". */
4701 rela.r_offset = (htab->elf.splt->output_section->vma
4702 + htab->elf.splt->output_offset);
4703 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4704 rela.r_addend = 8;
4705 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4706 loc += sizeof (Elf32_External_Rela);
4707
4708 /* Likewise the following "or". */
4709 rela.r_offset += 4;
4710 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4711 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4712 loc += sizeof (Elf32_External_Rela);
4713
4714 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4715 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4716 in which symbols were output. */
4717 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4718 {
4719 Elf_Internal_Rela rel;
4720
4721 /* The entry's initial "sethi" (against _G_O_T_). */
4722 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4723 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4724 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4725 loc += sizeof (Elf32_External_Rela);
4726
4727 /* The following "or" (also against _G_O_T_). */
4728 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4729 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4730 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4731 loc += sizeof (Elf32_External_Rela);
4732
4733 /* The .got.plt entry (against _P_L_T_). */
4734 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4735 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4736 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4737 loc += sizeof (Elf32_External_Rela);
4738 }
4739 }
4740
4741 /* Install the first PLT entry in a VxWorks shared object. */
4742
4743 static void
4744 sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4745 {
4746 struct _bfd_sparc_elf_link_hash_table *htab;
4747 unsigned int i;
4748
4749 htab = _bfd_sparc_elf_hash_table (info);
4750 BFD_ASSERT (htab != NULL);
4751
4752 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4753 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
4754 htab->elf.splt->contents + i * 4);
4755 }
4756
4757 /* Finish up local dynamic symbol handling. We set the contents of
4758 various dynamic sections here. */
4759
4760 static bfd_boolean
4761 finish_local_dynamic_symbol (void **slot, void *inf)
4762 {
4763 struct elf_link_hash_entry *h
4764 = (struct elf_link_hash_entry *) *slot;
4765 struct bfd_link_info *info
4766 = (struct bfd_link_info *) inf;
4767
4768 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4769 h, NULL);
4770 }
4771
4772 /* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4773 here since undefined weak symbol may not be dynamic and may not be
4774 called for _bfd_sparc_elf_finish_dynamic_symbol. */
4775
4776 static bfd_boolean
4777 pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
4778 void *inf)
4779 {
4780 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4781 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4782
4783 if (h->root.type != bfd_link_hash_undefweak
4784 || h->dynindx != -1)
4785 return TRUE;
4786
4787 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4788 h, NULL);
4789 }
4790
4791 bfd_boolean
4792 _bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4793 {
4794 bfd *dynobj;
4795 asection *sdyn;
4796 struct _bfd_sparc_elf_link_hash_table *htab;
4797
4798 htab = _bfd_sparc_elf_hash_table (info);
4799 BFD_ASSERT (htab != NULL);
4800 dynobj = htab->elf.dynobj;
4801
4802 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4803
4804 if (elf_hash_table (info)->dynamic_sections_created)
4805 {
4806 asection *splt;
4807
4808 splt = htab->elf.splt;
4809 BFD_ASSERT (splt != NULL && sdyn != NULL);
4810
4811 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4812 return FALSE;
4813
4814 /* Initialize the contents of the .plt section. */
4815 if (splt->size > 0)
4816 {
4817 if (htab->is_vxworks)
4818 {
4819 if (bfd_link_pic (info))
4820 sparc_vxworks_finish_shared_plt (output_bfd, info);
4821 else
4822 sparc_vxworks_finish_exec_plt (output_bfd, info);
4823 }
4824 else
4825 {
4826 memset (splt->contents, 0, htab->plt_header_size);
4827 if (!ABI_64_P (output_bfd))
4828 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4829 splt->contents + splt->size - 4);
4830 }
4831 }
4832
4833 if (elf_section_data (splt->output_section) != NULL)
4834 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4835 = ((htab->is_vxworks || !ABI_64_P (output_bfd))
4836 ? 0 : htab->plt_entry_size);
4837 }
4838
4839 /* Set the first entry in the global offset table to the address of
4840 the dynamic section. */
4841 if (htab->elf.sgot && htab->elf.sgot->size > 0)
4842 {
4843 bfd_vma val = (sdyn ?
4844 sdyn->output_section->vma + sdyn->output_offset :
4845 0);
4846
4847 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
4848 }
4849
4850 if (htab->elf.sgot)
4851 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4852 SPARC_ELF_WORD_BYTES (htab);
4853
4854 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4855 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4856
4857 /* Fill PLT entries for undefined weak symbols in PIE. */
4858 if (bfd_link_pie (info))
4859 bfd_hash_traverse (&info->hash->table,
4860 pie_finish_undefweak_symbol,
4861 info);
4862 return TRUE;
4863 }
4864
4865 \f
4866 /* Set the right machine number for a SPARC ELF file. */
4867
4868 bfd_boolean
4869 _bfd_sparc_elf_object_p (bfd *abfd)
4870 {
4871 obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
4872 obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
4873 obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
4874
4875 unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
4876 unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
4877 | ELF_SPARC_HWCAP_VIS3
4878 | ELF_SPARC_HWCAP_HPC);
4879 unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
4880 | ELF_SPARC_HWCAP_DES
4881 | ELF_SPARC_HWCAP_KASUMI
4882 | ELF_SPARC_HWCAP_CAMELLIA
4883 | ELF_SPARC_HWCAP_MD5
4884 | ELF_SPARC_HWCAP_SHA1
4885 | ELF_SPARC_HWCAP_SHA256
4886 | ELF_SPARC_HWCAP_SHA512
4887 | ELF_SPARC_HWCAP_MPMUL
4888 | ELF_SPARC_HWCAP_MONT
4889 | ELF_SPARC_HWCAP_CRC32C
4890 | ELF_SPARC_HWCAP_CBCOND
4891 | ELF_SPARC_HWCAP_PAUSE);
4892 unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
4893 | ELF_SPARC_HWCAP_IMA);
4894 unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
4895 | ELF_SPARC_HWCAP2_MWAIT
4896 | ELF_SPARC_HWCAP2_XMPMUL
4897 | ELF_SPARC_HWCAP2_XMONT);
4898 unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6
4899 | ELF_SPARC_HWCAP2_ONADDSUB
4900 | ELF_SPARC_HWCAP2_ONMUL
4901 | ELF_SPARC_HWCAP2_ONDIV
4902 | ELF_SPARC_HWCAP2_DICTUNP
4903 | ELF_SPARC_HWCAP2_FPCMPSHL
4904 | ELF_SPARC_HWCAP2_RLE
4905 | ELF_SPARC_HWCAP2_SHA3);
4906
4907 if (ABI_64_P (abfd))
4908 {
4909 unsigned long mach = bfd_mach_sparc_v9;
4910
4911 if (hwcaps2->i & m8_hwcaps2_mask)
4912 mach = bfd_mach_sparc_v9m8;
4913 else if (hwcaps2->i & v9m_hwcaps2_mask)
4914 mach = bfd_mach_sparc_v9m;
4915 else if (hwcaps->i & v9v_hwcaps_mask)
4916 mach = bfd_mach_sparc_v9v;
4917 else if (hwcaps->i & v9e_hwcaps_mask)
4918 mach = bfd_mach_sparc_v9e;
4919 else if (hwcaps->i & v9d_hwcaps_mask)
4920 mach = bfd_mach_sparc_v9d;
4921 else if (hwcaps->i & v9c_hwcaps_mask)
4922 mach = bfd_mach_sparc_v9c;
4923 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4924 mach = bfd_mach_sparc_v9b;
4925 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4926 mach = bfd_mach_sparc_v9a;
4927 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4928 }
4929 else
4930 {
4931 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4932 {
4933 if (hwcaps2->i & m8_hwcaps2_mask)
4934 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4935 bfd_mach_sparc_v8plusm8);
4936 else if (hwcaps2->i & v9m_hwcaps2_mask)
4937 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4938 bfd_mach_sparc_v8plusm);
4939 else if (hwcaps->i & v9v_hwcaps_mask)
4940 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4941 bfd_mach_sparc_v8plusv);
4942 else if (hwcaps->i & v9e_hwcaps_mask)
4943 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4944 bfd_mach_sparc_v8pluse);
4945 else if (hwcaps->i & v9d_hwcaps_mask)
4946 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4947 bfd_mach_sparc_v8plusd);
4948 else if (hwcaps->i & v9c_hwcaps_mask)
4949 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4950 bfd_mach_sparc_v8plusc);
4951 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4952 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4953 bfd_mach_sparc_v8plusb);
4954 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4955 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4956 bfd_mach_sparc_v8plusa);
4957 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4958 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4959 bfd_mach_sparc_v8plus);
4960 else
4961 return FALSE;
4962 }
4963 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4964 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4965 bfd_mach_sparc_sparclite_le);
4966 else
4967 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4968 }
4969 }
4970
4971 /* Return address for Ith PLT stub in section PLT, for relocation REL
4972 or (bfd_vma) -1 if it should not be included. */
4973
4974 bfd_vma
4975 _bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
4976 {
4977 if (ABI_64_P (plt->owner))
4978 {
4979 bfd_vma j;
4980
4981 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
4982 if (i < PLT64_LARGE_THRESHOLD)
4983 return plt->vma + i * PLT64_ENTRY_SIZE;
4984
4985 j = (i - PLT64_LARGE_THRESHOLD) % 160;
4986 i -= j;
4987 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
4988 }
4989 else
4990 return rel->address;
4991 }
4992
4993 /* Merge backend specific data from an object file to the output
4994 object file when linking. */
4995
4996 bfd_boolean
4997 _bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
4998 {
4999 bfd *obfd = info->output_bfd;
5000 obj_attribute *in_attr, *in_attrs;
5001 obj_attribute *out_attr, *out_attrs;
5002
5003 if (!elf_known_obj_attributes_proc (obfd)[0].i)
5004 {
5005 /* This is the first object. Copy the attributes. */
5006 _bfd_elf_copy_obj_attributes (ibfd, obfd);
5007
5008 /* Use the Tag_null value to indicate the attributes have been
5009 initialized. */
5010 elf_known_obj_attributes_proc (obfd)[0].i = 1;
5011
5012 return TRUE;
5013 }
5014
5015 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
5016 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
5017
5018 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
5019 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
5020
5021 out_attr->i |= in_attr->i;
5022 out_attr->type = 1;
5023
5024 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
5025 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
5026
5027 out_attr->i |= in_attr->i;
5028 out_attr->type = 1;
5029
5030 /* Merge Tag_compatibility attributes and any common GNU ones. */
5031 _bfd_elf_merge_object_attributes (ibfd, info);
5032
5033 return TRUE;
5034 }
This page took 0.193248 seconds and 5 git commands to generate.