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bfd_error_handler bfd_vma and bfd_size_type args
[deliverable/binutils-gdb.git] / bfd / elfxx-sparc.c
1 /* SPARC-specific support for ELF
2 Copyright (C) 2005-2017 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21
22 /* This file handles functionality common to the different SPARC ABI's. */
23
24 #include "sysdep.h"
25 #include "bfd.h"
26 #include "bfdlink.h"
27 #include "libbfd.h"
28 #include "libiberty.h"
29 #include "elf-bfd.h"
30 #include "elf/sparc.h"
31 #include "opcode/sparc.h"
32 #include "elfxx-sparc.h"
33 #include "elf-vxworks.h"
34 #include "objalloc.h"
35 #include "hashtab.h"
36
37 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
38 #define MINUS_ONE (~ (bfd_vma) 0)
39
40 #define ABI_64_P(abfd) \
41 (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
42
43 /* The relocation "howto" table. */
44
45 /* Utility for performing the standard initial work of an instruction
46 relocation.
47 *PRELOCATION will contain the relocated item.
48 *PINSN will contain the instruction from the input stream.
49 If the result is `bfd_reloc_other' the caller can continue with
50 performing the relocation. Otherwise it must stop and return the
51 value to its caller. */
52
53 static bfd_reloc_status_type
54 init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
55 void * data, asection *input_section, bfd *output_bfd,
56 bfd_vma *prelocation, bfd_vma *pinsn)
57 {
58 bfd_vma relocation;
59 reloc_howto_type *howto = reloc_entry->howto;
60
61 if (output_bfd != (bfd *) NULL
62 && (symbol->flags & BSF_SECTION_SYM) == 0
63 && (! howto->partial_inplace
64 || reloc_entry->addend == 0))
65 {
66 reloc_entry->address += input_section->output_offset;
67 return bfd_reloc_ok;
68 }
69
70 /* This works because partial_inplace is FALSE. */
71 if (output_bfd != NULL)
72 return bfd_reloc_continue;
73
74 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
75 return bfd_reloc_outofrange;
76
77 relocation = (symbol->value
78 + symbol->section->output_section->vma
79 + symbol->section->output_offset);
80 relocation += reloc_entry->addend;
81 if (howto->pc_relative)
82 {
83 relocation -= (input_section->output_section->vma
84 + input_section->output_offset);
85 relocation -= reloc_entry->address;
86 }
87
88 *prelocation = relocation;
89 *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
90 return bfd_reloc_other;
91 }
92
93 /* For unsupported relocs. */
94
95 static bfd_reloc_status_type
96 sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
97 arelent *reloc_entry ATTRIBUTE_UNUSED,
98 asymbol *symbol ATTRIBUTE_UNUSED,
99 void * data ATTRIBUTE_UNUSED,
100 asection *input_section ATTRIBUTE_UNUSED,
101 bfd *output_bfd ATTRIBUTE_UNUSED,
102 char **error_message ATTRIBUTE_UNUSED)
103 {
104 return bfd_reloc_notsupported;
105 }
106
107 /* Handle the WDISP16 reloc. */
108
109 static bfd_reloc_status_type
110 sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
111 void * data, asection *input_section, bfd *output_bfd,
112 char **error_message ATTRIBUTE_UNUSED)
113 {
114 bfd_vma relocation;
115 bfd_vma insn;
116 bfd_reloc_status_type status;
117
118 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
119 input_section, output_bfd, &relocation, &insn);
120 if (status != bfd_reloc_other)
121 return status;
122
123 insn &= ~ (bfd_vma) 0x303fff;
124 insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
125 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
126
127 if ((bfd_signed_vma) relocation < - 0x40000
128 || (bfd_signed_vma) relocation > 0x3ffff)
129 return bfd_reloc_overflow;
130 else
131 return bfd_reloc_ok;
132 }
133
134 /* Handle the WDISP10 reloc. */
135
136 static bfd_reloc_status_type
137 sparc_elf_wdisp10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
138 void * data, asection *input_section, bfd *output_bfd,
139 char **error_message ATTRIBUTE_UNUSED)
140 {
141 bfd_vma relocation;
142 bfd_vma insn;
143 bfd_reloc_status_type status;
144
145 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
146 input_section, output_bfd, &relocation, &insn);
147 if (status != bfd_reloc_other)
148 return status;
149
150 insn &= ~ (bfd_vma) 0x181fe0;
151 insn |= (((relocation >> 2) & 0x300) << 11)
152 | (((relocation >> 2) & 0xff) << 5);
153 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
154
155 if ((bfd_signed_vma) relocation < - 0x1000
156 || (bfd_signed_vma) relocation > 0xfff)
157 return bfd_reloc_overflow;
158 else
159 return bfd_reloc_ok;
160 }
161
162 /* Handle the HIX22 reloc. */
163
164 static bfd_reloc_status_type
165 sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
166 void * data, asection *input_section, bfd *output_bfd,
167 char **error_message ATTRIBUTE_UNUSED)
168 {
169 bfd_vma relocation;
170 bfd_vma insn;
171 bfd_reloc_status_type status;
172
173 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
174 input_section, output_bfd, &relocation, &insn);
175 if (status != bfd_reloc_other)
176 return status;
177
178 relocation ^= MINUS_ONE;
179 insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
180 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
181
182 if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
183 return bfd_reloc_overflow;
184 else
185 return bfd_reloc_ok;
186 }
187
188 /* Handle the LOX10 reloc. */
189
190 static bfd_reloc_status_type
191 sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
192 void * data, asection *input_section, bfd *output_bfd,
193 char **error_message ATTRIBUTE_UNUSED)
194 {
195 bfd_vma relocation;
196 bfd_vma insn;
197 bfd_reloc_status_type status;
198
199 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
200 input_section, output_bfd, &relocation, &insn);
201 if (status != bfd_reloc_other)
202 return status;
203
204 insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
205 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
206
207 return bfd_reloc_ok;
208 }
209
210 static reloc_howto_type _bfd_sparc_elf_howto_table[] =
211 {
212 HOWTO(R_SPARC_NONE, 0,3, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
213 HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
214 HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
215 HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
216 HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
217 HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
218 HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
219 HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
220 HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
221 HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
222 HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
223 HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
224 HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
225 HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
226 HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
227 HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
228 HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
229 HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
230 HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
231 HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
232 HOWTO(R_SPARC_GLOB_DAT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",FALSE,0,0x00000000,TRUE),
233 HOWTO(R_SPARC_JMP_SLOT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",FALSE,0,0x00000000,TRUE),
234 HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
235 HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
236 HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
237 HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
238 HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
239 HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
240 HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
241 HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
242 HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
243 HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
244 HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE),
245 HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE),
246 HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE),
247 HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE),
248 HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE),
249 HOWTO(R_SPARC_PC_HH22, 42,2,22,TRUE, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", FALSE,0,0x003fffff,TRUE),
250 HOWTO(R_SPARC_PC_HM10, 32,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", FALSE,0,0x000003ff,TRUE),
251 HOWTO(R_SPARC_PC_LM22, 10,2,22,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", FALSE,0,0x003fffff,TRUE),
252 HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
253 HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
254 HOWTO(R_SPARC_UNUSED_42, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",FALSE,0,0x00000000,TRUE),
255 HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
256 HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
257 HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
258 HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE),
259 HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE),
260 HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE),
261 HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE),
262 HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE),
263 HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE),
264 HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE),
265 HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE),
266 HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE),
267 HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
268 HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE),
269 HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE),
270 HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",FALSE,0,0x00000000,TRUE),
271 HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE),
272 HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE),
273 HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE),
274 HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",FALSE,0,0x00000000,TRUE),
275 HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE),
276 HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE),
277 HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE),
278 HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",FALSE,0,0x00000000,TRUE),
279 HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE),
280 HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE),
281 HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",FALSE,0,0x00000000,TRUE),
282 HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",FALSE,0,0x00000000,TRUE),
283 HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",FALSE,0,0x00000000,TRUE),
284 HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE),
285 HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE),
286 HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",FALSE,0,0x00000000,TRUE),
287 HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",FALSE,0,0x00000000,TRUE),
288 HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE),
289 HOWTO(R_SPARC_TLS_DTPOFF64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",FALSE,0,MINUS_ONE,TRUE),
290 HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE),
291 HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE),
292 HOWTO(R_SPARC_GOTDATA_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",FALSE,0,0x003fffff, FALSE),
293 HOWTO(R_SPARC_GOTDATA_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",FALSE,0,0x000003ff, FALSE),
294 HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",FALSE,0,0x003fffff, FALSE),
295 HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",FALSE,0,0x000003ff, FALSE),
296 HOWTO(R_SPARC_GOTDATA_OP,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOTDATA_OP",FALSE,0,0x00000000,TRUE),
297 HOWTO(R_SPARC_H34,12,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc,"R_SPARC_H34",FALSE,0,0x003fffff,FALSE),
298 HOWTO(R_SPARC_SIZE32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE32",FALSE,0,0xffffffff,TRUE),
299 HOWTO(R_SPARC_SIZE64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE64",FALSE,0,MINUS_ONE, TRUE),
300 HOWTO(R_SPARC_WDISP10,2,2,10,TRUE, 0,complain_overflow_signed,sparc_elf_wdisp10_reloc,"R_SPARC_WDISP10",FALSE,0,0x00000000,TRUE),
301 };
302 static reloc_howto_type sparc_jmp_irel_howto =
303 HOWTO(R_SPARC_JMP_IREL, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_IREL",FALSE,0,0x00000000,TRUE);
304 static reloc_howto_type sparc_irelative_howto =
305 HOWTO(R_SPARC_IRELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_IRELATIVE",FALSE,0,0x00000000,TRUE);
306 static reloc_howto_type sparc_vtinherit_howto =
307 HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE);
308 static reloc_howto_type sparc_vtentry_howto =
309 HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", FALSE,0,0, FALSE);
310 static reloc_howto_type sparc_rev32_howto =
311 HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE);
312
313 reloc_howto_type *
314 _bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
315 bfd_reloc_code_real_type code)
316 {
317 /* We explicitly handle each relocation type in the switch
318 instead of using a lookup table for efficiency. */
319 switch (code)
320 {
321 case BFD_RELOC_NONE:
322 return &_bfd_sparc_elf_howto_table[R_SPARC_NONE];
323
324 case BFD_RELOC_8:
325 return &_bfd_sparc_elf_howto_table[R_SPARC_8];
326
327 case BFD_RELOC_16:
328 return &_bfd_sparc_elf_howto_table[R_SPARC_16];
329
330 case BFD_RELOC_32:
331 return &_bfd_sparc_elf_howto_table[R_SPARC_32];
332
333 case BFD_RELOC_8_PCREL:
334 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP8];
335
336 case BFD_RELOC_16_PCREL:
337 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP16];
338
339 case BFD_RELOC_32_PCREL:
340 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP32];
341
342 case BFD_RELOC_32_PCREL_S2:
343 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP30];
344
345 case BFD_RELOC_SPARC_WDISP22:
346 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP22];
347
348 case BFD_RELOC_HI22:
349 return &_bfd_sparc_elf_howto_table[R_SPARC_HI22];
350
351 case BFD_RELOC_SPARC22:
352 return &_bfd_sparc_elf_howto_table[R_SPARC_22];
353
354 case BFD_RELOC_SPARC13:
355 return &_bfd_sparc_elf_howto_table[R_SPARC_13];
356
357 case BFD_RELOC_LO10:
358 return &_bfd_sparc_elf_howto_table[R_SPARC_LO10];
359
360 case BFD_RELOC_SPARC_GOT10:
361 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT10];
362
363 case BFD_RELOC_SPARC_GOT13:
364 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT13];
365
366 case BFD_RELOC_SPARC_GOT22:
367 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT22];
368
369 case BFD_RELOC_SPARC_PC10:
370 return &_bfd_sparc_elf_howto_table[R_SPARC_PC10];
371
372 case BFD_RELOC_SPARC_PC22:
373 return &_bfd_sparc_elf_howto_table[R_SPARC_PC22];
374
375 case BFD_RELOC_SPARC_WPLT30:
376 return &_bfd_sparc_elf_howto_table[R_SPARC_WPLT30];
377
378 case BFD_RELOC_SPARC_COPY:
379 return &_bfd_sparc_elf_howto_table[R_SPARC_COPY];
380
381 case BFD_RELOC_SPARC_GLOB_DAT:
382 return &_bfd_sparc_elf_howto_table[R_SPARC_GLOB_DAT];
383
384 case BFD_RELOC_SPARC_JMP_SLOT:
385 return &_bfd_sparc_elf_howto_table[R_SPARC_JMP_SLOT];
386
387 case BFD_RELOC_SPARC_RELATIVE:
388 return &_bfd_sparc_elf_howto_table[R_SPARC_RELATIVE];
389
390 case BFD_RELOC_SPARC_UA32:
391 return &_bfd_sparc_elf_howto_table[R_SPARC_UA32];
392
393 case BFD_RELOC_SPARC_PLT32:
394 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT32];
395
396 case BFD_RELOC_SPARC_10:
397 return &_bfd_sparc_elf_howto_table[R_SPARC_10];
398
399 case BFD_RELOC_SPARC_11:
400 return &_bfd_sparc_elf_howto_table[R_SPARC_11];
401
402 case BFD_RELOC_SPARC_64:
403 return &_bfd_sparc_elf_howto_table[R_SPARC_64];
404
405 case BFD_RELOC_SPARC_OLO10:
406 return &_bfd_sparc_elf_howto_table[R_SPARC_OLO10];
407
408 case BFD_RELOC_SPARC_HH22:
409 return &_bfd_sparc_elf_howto_table[R_SPARC_HH22];
410
411 case BFD_RELOC_SPARC_HM10:
412 return &_bfd_sparc_elf_howto_table[R_SPARC_HM10];
413
414 case BFD_RELOC_SPARC_LM22:
415 return &_bfd_sparc_elf_howto_table[R_SPARC_LM22];
416
417 case BFD_RELOC_SPARC_PC_HH22:
418 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HH22];
419
420 case BFD_RELOC_SPARC_PC_HM10:
421 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HM10];
422
423 case BFD_RELOC_SPARC_PC_LM22:
424 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_LM22];
425
426 case BFD_RELOC_SPARC_WDISP16:
427 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP16];
428
429 case BFD_RELOC_SPARC_WDISP19:
430 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP19];
431
432 case BFD_RELOC_SPARC_7:
433 return &_bfd_sparc_elf_howto_table[R_SPARC_7];
434
435 case BFD_RELOC_SPARC_5:
436 return &_bfd_sparc_elf_howto_table[R_SPARC_5];
437
438 case BFD_RELOC_SPARC_6:
439 return &_bfd_sparc_elf_howto_table[R_SPARC_6];
440
441 case BFD_RELOC_SPARC_DISP64:
442 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP64];
443
444 case BFD_RELOC_SPARC_PLT64:
445 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT64];
446
447 case BFD_RELOC_SPARC_HIX22:
448 return &_bfd_sparc_elf_howto_table[R_SPARC_HIX22];
449
450 case BFD_RELOC_SPARC_LOX10:
451 return &_bfd_sparc_elf_howto_table[R_SPARC_LOX10];
452
453 case BFD_RELOC_SPARC_H44:
454 return &_bfd_sparc_elf_howto_table[R_SPARC_H44];
455
456 case BFD_RELOC_SPARC_M44:
457 return &_bfd_sparc_elf_howto_table[R_SPARC_M44];
458
459 case BFD_RELOC_SPARC_L44:
460 return &_bfd_sparc_elf_howto_table[R_SPARC_L44];
461
462 case BFD_RELOC_SPARC_REGISTER:
463 return &_bfd_sparc_elf_howto_table[R_SPARC_REGISTER];
464
465 case BFD_RELOC_SPARC_UA64:
466 return &_bfd_sparc_elf_howto_table[R_SPARC_UA64];
467
468 case BFD_RELOC_SPARC_UA16:
469 return &_bfd_sparc_elf_howto_table[R_SPARC_UA16];
470
471 case BFD_RELOC_SPARC_TLS_GD_HI22:
472 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_HI22];
473
474 case BFD_RELOC_SPARC_TLS_GD_LO10:
475 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_LO10];
476
477 case BFD_RELOC_SPARC_TLS_GD_ADD:
478 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_ADD];
479
480 case BFD_RELOC_SPARC_TLS_GD_CALL:
481 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_CALL];
482
483 case BFD_RELOC_SPARC_TLS_LDM_HI22:
484 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_HI22];
485
486 case BFD_RELOC_SPARC_TLS_LDM_LO10:
487 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_LO10];
488
489 case BFD_RELOC_SPARC_TLS_LDM_ADD:
490 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_ADD];
491
492 case BFD_RELOC_SPARC_TLS_LDM_CALL:
493 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_CALL];
494
495 case BFD_RELOC_SPARC_TLS_LDO_HIX22:
496 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_HIX22];
497
498 case BFD_RELOC_SPARC_TLS_LDO_LOX10:
499 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_LOX10];
500
501 case BFD_RELOC_SPARC_TLS_LDO_ADD:
502 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_ADD];
503
504 case BFD_RELOC_SPARC_TLS_IE_HI22:
505 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_HI22];
506
507 case BFD_RELOC_SPARC_TLS_IE_LO10:
508 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LO10];
509
510 case BFD_RELOC_SPARC_TLS_IE_LD:
511 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LD];
512
513 case BFD_RELOC_SPARC_TLS_IE_LDX:
514 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LDX];
515
516 case BFD_RELOC_SPARC_TLS_IE_ADD:
517 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_ADD];
518
519 case BFD_RELOC_SPARC_TLS_LE_HIX22:
520 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_HIX22];
521
522 case BFD_RELOC_SPARC_TLS_LE_LOX10:
523 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_LOX10];
524
525 case BFD_RELOC_SPARC_TLS_DTPMOD32:
526 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD32];
527
528 case BFD_RELOC_SPARC_TLS_DTPMOD64:
529 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD64];
530
531 case BFD_RELOC_SPARC_TLS_DTPOFF32:
532 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF32];
533
534 case BFD_RELOC_SPARC_TLS_DTPOFF64:
535 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF64];
536
537 case BFD_RELOC_SPARC_TLS_TPOFF32:
538 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF32];
539
540 case BFD_RELOC_SPARC_TLS_TPOFF64:
541 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF64];
542
543 case BFD_RELOC_SPARC_GOTDATA_HIX22:
544 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_HIX22];
545
546 case BFD_RELOC_SPARC_GOTDATA_LOX10:
547 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_LOX10];
548
549 case BFD_RELOC_SPARC_GOTDATA_OP_HIX22:
550 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_HIX22];
551
552 case BFD_RELOC_SPARC_GOTDATA_OP_LOX10:
553 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_LOX10];
554
555 case BFD_RELOC_SPARC_GOTDATA_OP:
556 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP];
557
558 case BFD_RELOC_SPARC_H34:
559 return &_bfd_sparc_elf_howto_table[R_SPARC_H34];
560
561 case BFD_RELOC_SPARC_SIZE32:
562 return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE32];
563
564 case BFD_RELOC_SPARC_SIZE64:
565 return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE64];
566
567 case BFD_RELOC_SPARC_WDISP10:
568 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP10];
569
570 case BFD_RELOC_SPARC_JMP_IREL:
571 return &sparc_jmp_irel_howto;
572
573 case BFD_RELOC_SPARC_IRELATIVE:
574 return &sparc_irelative_howto;
575
576 case BFD_RELOC_VTABLE_INHERIT:
577 return &sparc_vtinherit_howto;
578
579 case BFD_RELOC_VTABLE_ENTRY:
580 return &sparc_vtentry_howto;
581
582 case BFD_RELOC_SPARC_REV32:
583 return &sparc_rev32_howto;
584
585 default:
586 break;
587 }
588 bfd_set_error (bfd_error_bad_value);
589 return NULL;
590 }
591
592 reloc_howto_type *
593 _bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
594 const char *r_name)
595 {
596 unsigned int i;
597
598 for (i = 0;
599 i < (sizeof (_bfd_sparc_elf_howto_table)
600 / sizeof (_bfd_sparc_elf_howto_table[0]));
601 i++)
602 if (_bfd_sparc_elf_howto_table[i].name != NULL
603 && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
604 return &_bfd_sparc_elf_howto_table[i];
605
606 if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
607 return &sparc_vtinherit_howto;
608 if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
609 return &sparc_vtentry_howto;
610 if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
611 return &sparc_rev32_howto;
612
613 return NULL;
614 }
615
616 reloc_howto_type *
617 _bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type)
618 {
619 switch (r_type)
620 {
621 case R_SPARC_JMP_IREL:
622 return &sparc_jmp_irel_howto;
623
624 case R_SPARC_IRELATIVE:
625 return &sparc_irelative_howto;
626
627 case R_SPARC_GNU_VTINHERIT:
628 return &sparc_vtinherit_howto;
629
630 case R_SPARC_GNU_VTENTRY:
631 return &sparc_vtentry_howto;
632
633 case R_SPARC_REV32:
634 return &sparc_rev32_howto;
635
636 default:
637 if (r_type >= (unsigned int) R_SPARC_max_std)
638 {
639 _bfd_error_handler (_("invalid relocation type %d"), (int) r_type);
640 r_type = R_SPARC_NONE;
641 }
642 return &_bfd_sparc_elf_howto_table[r_type];
643 }
644 }
645
646 /* Both 32-bit and 64-bit sparc encode this in an identical manner,
647 so just take advantage of that. */
648 #define SPARC_ELF_R_TYPE(r_info) \
649 ((r_info) & 0xff)
650
651 void
652 _bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
653 Elf_Internal_Rela *dst)
654 {
655 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
656
657 cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type);
658 }
659 \f
660
661 /* The nop opcode we use. */
662 #define SPARC_NOP 0x01000000
663
664 #define SPARC_INSN_BYTES 4
665
666 /* The SPARC linker needs to keep track of the number of relocs that it
667 decides to copy as dynamic relocs in check_relocs for each symbol.
668 This is so that it can later discard them if they are found to be
669 unnecessary. We store the information in a field extending the
670 regular ELF linker hash table. */
671
672 struct _bfd_sparc_elf_dyn_relocs
673 {
674 struct _bfd_sparc_elf_dyn_relocs *next;
675
676 /* The input section of the reloc. */
677 asection *sec;
678
679 /* Total number of relocs copied for the input section. */
680 bfd_size_type count;
681
682 /* Number of pc-relative relocs copied for the input section. */
683 bfd_size_type pc_count;
684 };
685
686 /* Is an undefined weak symbol resolved to 0 ?
687 Reference to an undefined weak symbol is resolved to 0 when
688 building an executable if it isn't dynamic and
689 1. Has non-GOT/non-PLT relocations in text section.
690 Or
691 2. Has no GOT/PLT relocation. */
692 #define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
693 ((EH)->elf.root.type == bfd_link_hash_undefweak \
694 && bfd_link_executable (INFO) \
695 && (_bfd_sparc_elf_hash_table (INFO)->interp == NULL \
696 || !(EH)->has_got_reloc \
697 || (EH)->has_non_got_reloc \
698 || !(INFO)->dynamic_undefined_weak))
699
700 /* SPARC ELF linker hash entry. */
701
702 struct _bfd_sparc_elf_link_hash_entry
703 {
704 struct elf_link_hash_entry elf;
705
706 /* Track dynamic relocs copied for this symbol. */
707 struct _bfd_sparc_elf_dyn_relocs *dyn_relocs;
708
709 #define GOT_UNKNOWN 0
710 #define GOT_NORMAL 1
711 #define GOT_TLS_GD 2
712 #define GOT_TLS_IE 3
713 unsigned char tls_type;
714
715 /* Symbol has GOT or PLT relocations. */
716 unsigned int has_got_reloc : 1;
717
718 /* Symbol has non-GOT/non-PLT relocations in text sections. */
719 unsigned int has_non_got_reloc : 1;
720
721 };
722
723 #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
724
725 struct _bfd_sparc_elf_obj_tdata
726 {
727 struct elf_obj_tdata root;
728
729 /* tls_type for each local got entry. */
730 char *local_got_tls_type;
731
732 /* TRUE if TLS GD relocs has been seen for this object. */
733 bfd_boolean has_tlsgd;
734 };
735
736 #define _bfd_sparc_elf_tdata(abfd) \
737 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
738
739 #define _bfd_sparc_elf_local_got_tls_type(abfd) \
740 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
741
742 #define is_sparc_elf(bfd) \
743 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
744 && elf_tdata (bfd) != NULL \
745 && elf_object_id (bfd) == SPARC_ELF_DATA)
746
747 bfd_boolean
748 _bfd_sparc_elf_mkobject (bfd *abfd)
749 {
750 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
751 SPARC_ELF_DATA);
752 }
753
754 static void
755 sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
756 {
757 bfd_put_32 (abfd, val, ptr);
758 }
759
760 static void
761 sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
762 {
763 bfd_put_64 (abfd, val, ptr);
764 }
765
766 static void
767 sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
768 {
769 const struct elf_backend_data *bed;
770 bfd_byte *loc;
771
772 bed = get_elf_backend_data (abfd);
773 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
774 bed->s->swap_reloca_out (abfd, rel, loc);
775 }
776
777 static bfd_vma
778 sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
779 bfd_vma rel_index ATTRIBUTE_UNUSED,
780 bfd_vma type ATTRIBUTE_UNUSED)
781 {
782 return ELF64_R_INFO (rel_index,
783 (in_rel ?
784 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
785 type) : type));
786 }
787
788 static bfd_vma
789 sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
790 bfd_vma rel_index, bfd_vma type)
791 {
792 return ELF32_R_INFO (rel_index, type);
793 }
794
795 static bfd_vma
796 sparc_elf_r_symndx_64 (bfd_vma r_info)
797 {
798 bfd_vma r_symndx = ELF32_R_SYM (r_info);
799 return (r_symndx >> 24);
800 }
801
802 static bfd_vma
803 sparc_elf_r_symndx_32 (bfd_vma r_info)
804 {
805 return ELF32_R_SYM (r_info);
806 }
807
808 /* PLT/GOT stuff */
809
810 #define PLT32_ENTRY_SIZE 12
811 #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
812
813 /* The first four entries in a 32-bit procedure linkage table are reserved,
814 and the initial contents are unimportant (we zero them out).
815 Subsequent entries look like this. See the SVR4 ABI SPARC
816 supplement to see how this works. */
817
818 /* sethi %hi(.-.plt0),%g1. We fill in the address later. */
819 #define PLT32_ENTRY_WORD0 0x03000000
820 /* b,a .plt0. We fill in the offset later. */
821 #define PLT32_ENTRY_WORD1 0x30800000
822 /* nop. */
823 #define PLT32_ENTRY_WORD2 SPARC_NOP
824
825 static int
826 sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
827 bfd_vma max ATTRIBUTE_UNUSED,
828 bfd_vma *r_offset)
829 {
830 bfd_put_32 (output_bfd,
831 PLT32_ENTRY_WORD0 + offset,
832 splt->contents + offset);
833 bfd_put_32 (output_bfd,
834 (PLT32_ENTRY_WORD1
835 + (((- (offset + 4)) >> 2) & 0x3fffff)),
836 splt->contents + offset + 4);
837 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
838 splt->contents + offset + 8);
839
840 *r_offset = offset;
841
842 return offset / PLT32_ENTRY_SIZE - 4;
843 }
844
845 /* Both the headers and the entries are icache aligned. */
846 #define PLT64_ENTRY_SIZE 32
847 #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
848 #define PLT64_LARGE_THRESHOLD 32768
849
850 static int
851 sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
852 bfd_vma max, bfd_vma *r_offset)
853 {
854 unsigned char *entry = splt->contents + offset;
855 const unsigned int nop = SPARC_NOP;
856 int plt_index;
857
858 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
859 {
860 unsigned int sethi, ba;
861
862 *r_offset = offset;
863
864 plt_index = (offset / PLT64_ENTRY_SIZE);
865
866 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
867 ba = 0x30680000
868 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
869
870 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
871 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
872 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
873 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
874 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
875 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
876 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
877 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
878 }
879 else
880 {
881 unsigned char *ptr;
882 unsigned int ldx;
883 int block, last_block, ofs, last_ofs, chunks_this_block;
884 const int insn_chunk_size = (6 * 4);
885 const int ptr_chunk_size = (1 * 8);
886 const int entries_per_block = 160;
887 const int block_size = entries_per_block * (insn_chunk_size
888 + ptr_chunk_size);
889
890 /* Entries 32768 and higher are grouped into blocks of 160.
891 The blocks are further subdivided into 160 sequences of
892 6 instructions and 160 pointers. If a block does not require
893 the full 160 entries, let's say it requires N, then there
894 will be N sequences of 6 instructions and N pointers. */
895
896 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
897 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
898
899 block = offset / block_size;
900 last_block = max / block_size;
901 if (block != last_block)
902 {
903 chunks_this_block = 160;
904 }
905 else
906 {
907 last_ofs = max % block_size;
908 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
909 }
910
911 ofs = offset % block_size;
912
913 plt_index = (PLT64_LARGE_THRESHOLD +
914 (block * 160) +
915 (ofs / insn_chunk_size));
916
917 ptr = splt->contents
918 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
919 + (block * block_size)
920 + (chunks_this_block * insn_chunk_size)
921 + (ofs / insn_chunk_size) * ptr_chunk_size;
922
923 *r_offset = (bfd_vma) (ptr - splt->contents);
924
925 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
926
927 /* mov %o7,%g5
928 call .+8
929 nop
930 ldx [%o7+P],%g1
931 jmpl %o7+%g1,%g1
932 mov %g5,%o7 */
933 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
934 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
935 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
936 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
937 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
938 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
939
940 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
941 }
942
943 return plt_index - 4;
944 }
945
946 /* The format of the first PLT entry in a VxWorks executable. */
947 static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
948 {
949 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
950 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
951 0xc4008000, /* ld [ %g2 ], %g2 */
952 0x81c08000, /* jmp %g2 */
953 0x01000000 /* nop */
954 };
955
956 /* The format of subsequent PLT entries. */
957 static const bfd_vma sparc_vxworks_exec_plt_entry[] =
958 {
959 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
960 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
961 0xc2004000, /* ld [ %g1 ], %g1 */
962 0x81c04000, /* jmp %g1 */
963 0x01000000, /* nop */
964 0x03000000, /* sethi %hi(f@pltindex), %g1 */
965 0x10800000, /* b _PLT_resolve */
966 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
967 };
968
969 /* The format of the first PLT entry in a VxWorks shared object. */
970 static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
971 {
972 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
973 0x81c08000, /* jmp %g2 */
974 0x01000000 /* nop */
975 };
976
977 /* The format of subsequent PLT entries. */
978 static const bfd_vma sparc_vxworks_shared_plt_entry[] =
979 {
980 0x03000000, /* sethi %hi(f@got), %g1 */
981 0x82106000, /* or %g1, %lo(f@got), %g1 */
982 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
983 0x81c04000, /* jmp %g1 */
984 0x01000000, /* nop */
985 0x03000000, /* sethi %hi(f@pltindex), %g1 */
986 0x10800000, /* b _PLT_resolve */
987 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
988 };
989
990 #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
991 htab->put_word(bfd, val, ptr)
992
993 #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
994 htab->r_info(in_rel, index, type)
995
996 #define SPARC_ELF_R_SYMNDX(htab, r_info) \
997 htab->r_symndx(r_info)
998
999 #define SPARC_ELF_WORD_BYTES(htab) \
1000 htab->bytes_per_word
1001
1002 #define SPARC_ELF_RELA_BYTES(htab) \
1003 htab->bytes_per_rela
1004
1005 #define SPARC_ELF_DTPOFF_RELOC(htab) \
1006 htab->dtpoff_reloc
1007
1008 #define SPARC_ELF_DTPMOD_RELOC(htab) \
1009 htab->dtpmod_reloc
1010
1011 #define SPARC_ELF_TPOFF_RELOC(htab) \
1012 htab->tpoff_reloc
1013
1014 #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
1015 htab->build_plt_entry (obfd, splt, off, max, r_off)
1016
1017 /* Create an entry in an SPARC ELF linker hash table. */
1018
1019 static struct bfd_hash_entry *
1020 link_hash_newfunc (struct bfd_hash_entry *entry,
1021 struct bfd_hash_table *table, const char *string)
1022 {
1023 /* Allocate the structure if it has not already been allocated by a
1024 subclass. */
1025 if (entry == NULL)
1026 {
1027 entry = bfd_hash_allocate (table,
1028 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1029 if (entry == NULL)
1030 return entry;
1031 }
1032
1033 /* Call the allocation method of the superclass. */
1034 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1035 if (entry != NULL)
1036 {
1037 struct _bfd_sparc_elf_link_hash_entry *eh;
1038
1039 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
1040 eh->dyn_relocs = NULL;
1041 eh->tls_type = GOT_UNKNOWN;
1042 eh->has_got_reloc = 0;
1043 eh->has_non_got_reloc = 0;
1044 }
1045
1046 return entry;
1047 }
1048
1049 /* The name of the dynamic interpreter. This is put in the .interp
1050 section. */
1051
1052 #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1053 #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1054
1055 /* Compute a hash of a local hash entry. We use elf_link_hash_entry
1056 for local symbol so that we can handle local STT_GNU_IFUNC symbols
1057 as global symbol. We reuse indx and dynstr_index for local symbol
1058 hash since they aren't used by global symbols in this backend. */
1059
1060 static hashval_t
1061 elf_sparc_local_htab_hash (const void *ptr)
1062 {
1063 struct elf_link_hash_entry *h
1064 = (struct elf_link_hash_entry *) ptr;
1065 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1066 }
1067
1068 /* Compare local hash entries. */
1069
1070 static int
1071 elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1072 {
1073 struct elf_link_hash_entry *h1
1074 = (struct elf_link_hash_entry *) ptr1;
1075 struct elf_link_hash_entry *h2
1076 = (struct elf_link_hash_entry *) ptr2;
1077
1078 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1079 }
1080
1081 /* Find and/or create a hash entry for local symbol. */
1082
1083 static struct elf_link_hash_entry *
1084 elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1085 bfd *abfd, const Elf_Internal_Rela *rel,
1086 bfd_boolean create)
1087 {
1088 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1089 asection *sec = abfd->sections;
1090 unsigned long r_symndx;
1091 hashval_t h;
1092 void **slot;
1093
1094 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1095 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1096
1097 e.elf.indx = sec->id;
1098 e.elf.dynstr_index = r_symndx;
1099 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1100 create ? INSERT : NO_INSERT);
1101
1102 if (!slot)
1103 return NULL;
1104
1105 if (*slot)
1106 {
1107 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1108 return &ret->elf;
1109 }
1110
1111 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1112 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1113 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1114 if (ret)
1115 {
1116 memset (ret, 0, sizeof (*ret));
1117 ret->elf.indx = sec->id;
1118 ret->elf.dynstr_index = r_symndx;
1119 ret->elf.dynindx = -1;
1120 ret->elf.plt.offset = (bfd_vma) -1;
1121 ret->elf.got.offset = (bfd_vma) -1;
1122 *slot = ret;
1123 }
1124 return &ret->elf;
1125 }
1126
1127 /* Destroy a SPARC ELF linker hash table. */
1128
1129 static void
1130 _bfd_sparc_elf_link_hash_table_free (bfd *obfd)
1131 {
1132 struct _bfd_sparc_elf_link_hash_table *htab
1133 = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
1134
1135 if (htab->loc_hash_table)
1136 htab_delete (htab->loc_hash_table);
1137 if (htab->loc_hash_memory)
1138 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
1139 _bfd_elf_link_hash_table_free (obfd);
1140 }
1141
1142 /* Create a SPARC ELF linker hash table. */
1143
1144 struct bfd_link_hash_table *
1145 _bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1146 {
1147 struct _bfd_sparc_elf_link_hash_table *ret;
1148 bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1149
1150 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1151 if (ret == NULL)
1152 return NULL;
1153
1154 if (ABI_64_P (abfd))
1155 {
1156 ret->put_word = sparc_put_word_64;
1157 ret->r_info = sparc_elf_r_info_64;
1158 ret->r_symndx = sparc_elf_r_symndx_64;
1159 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1160 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1161 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1162 ret->word_align_power = 3;
1163 ret->align_power_max = 4;
1164 ret->bytes_per_word = 8;
1165 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1166 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1167 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
1168
1169 ret->build_plt_entry = sparc64_plt_entry_build;
1170 ret->plt_header_size = PLT64_HEADER_SIZE;
1171 ret->plt_entry_size = PLT64_ENTRY_SIZE;
1172 }
1173 else
1174 {
1175 ret->put_word = sparc_put_word_32;
1176 ret->r_info = sparc_elf_r_info_32;
1177 ret->r_symndx = sparc_elf_r_symndx_32;
1178 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1179 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1180 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1181 ret->word_align_power = 2;
1182 ret->align_power_max = 3;
1183 ret->bytes_per_word = 4;
1184 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1185 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1186 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
1187
1188 ret->build_plt_entry = sparc32_plt_entry_build;
1189 ret->plt_header_size = PLT32_HEADER_SIZE;
1190 ret->plt_entry_size = PLT32_ENTRY_SIZE;
1191 }
1192
1193 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1194 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1195 SPARC_ELF_DATA))
1196 {
1197 free (ret);
1198 return NULL;
1199 }
1200
1201 ret->loc_hash_table = htab_try_create (1024,
1202 elf_sparc_local_htab_hash,
1203 elf_sparc_local_htab_eq,
1204 NULL);
1205 ret->loc_hash_memory = objalloc_create ();
1206 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1207 {
1208 _bfd_sparc_elf_link_hash_table_free (abfd);
1209 return NULL;
1210 }
1211 ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
1212
1213 return &ret->elf.root;
1214 }
1215
1216 /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1217 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1218 hash table. */
1219
1220 bfd_boolean
1221 _bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1222 struct bfd_link_info *info)
1223 {
1224 struct _bfd_sparc_elf_link_hash_table *htab;
1225
1226 htab = _bfd_sparc_elf_hash_table (info);
1227 BFD_ASSERT (htab != NULL);
1228
1229 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1230 return FALSE;
1231
1232 if (htab->is_vxworks)
1233 {
1234 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1235 return FALSE;
1236 if (bfd_link_pic (info))
1237 {
1238 htab->plt_header_size
1239 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1240 htab->plt_entry_size
1241 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1242 }
1243 else
1244 {
1245 htab->plt_header_size
1246 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1247 htab->plt_entry_size
1248 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1249 }
1250 }
1251
1252 if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1253 || (!bfd_link_pic (info) && !htab->elf.srelbss))
1254 abort ();
1255
1256 return TRUE;
1257 }
1258
1259 static bfd_boolean
1260 create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1261 {
1262 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1263 struct elf_link_hash_table *htab = elf_hash_table (info);
1264 flagword flags, pltflags;
1265 asection *s;
1266
1267 if (htab->irelifunc != NULL || htab->iplt != NULL)
1268 return TRUE;
1269
1270 flags = bed->dynamic_sec_flags;
1271 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1272
1273 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1274 if (s == NULL
1275 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1276 return FALSE;
1277 htab->iplt = s;
1278
1279 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1280 flags | SEC_READONLY);
1281 if (s == NULL
1282 || ! bfd_set_section_alignment (abfd, s,
1283 bed->s->log_file_align))
1284 return FALSE;
1285 htab->irelplt = s;
1286
1287 return TRUE;
1288 }
1289
1290 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1291
1292 void
1293 _bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
1294 struct elf_link_hash_entry *dir,
1295 struct elf_link_hash_entry *ind)
1296 {
1297 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1298
1299 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1300 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1301
1302 if (eind->dyn_relocs != NULL)
1303 {
1304 if (edir->dyn_relocs != NULL)
1305 {
1306 struct _bfd_sparc_elf_dyn_relocs **pp;
1307 struct _bfd_sparc_elf_dyn_relocs *p;
1308
1309 /* Add reloc counts against the indirect sym to the direct sym
1310 list. Merge any entries against the same section. */
1311 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1312 {
1313 struct _bfd_sparc_elf_dyn_relocs *q;
1314
1315 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1316 if (q->sec == p->sec)
1317 {
1318 q->pc_count += p->pc_count;
1319 q->count += p->count;
1320 *pp = p->next;
1321 break;
1322 }
1323 if (q == NULL)
1324 pp = &p->next;
1325 }
1326 *pp = edir->dyn_relocs;
1327 }
1328
1329 edir->dyn_relocs = eind->dyn_relocs;
1330 eind->dyn_relocs = NULL;
1331 }
1332
1333 if (ind->root.type == bfd_link_hash_indirect
1334 && dir->got.refcount <= 0)
1335 {
1336 edir->tls_type = eind->tls_type;
1337 eind->tls_type = GOT_UNKNOWN;
1338 }
1339
1340 /* Copy has_got_reloc and has_non_got_reloc. */
1341 edir->has_got_reloc |= eind->has_got_reloc;
1342 edir->has_non_got_reloc |= eind->has_non_got_reloc;
1343
1344 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1345 }
1346
1347 static int
1348 sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1349 int r_type, int is_local)
1350 {
1351 if (! ABI_64_P (abfd)
1352 && r_type == R_SPARC_TLS_GD_HI22
1353 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1354 r_type = R_SPARC_REV32;
1355
1356 if (bfd_link_pic (info))
1357 return r_type;
1358
1359 switch (r_type)
1360 {
1361 case R_SPARC_TLS_GD_HI22:
1362 if (is_local)
1363 return R_SPARC_TLS_LE_HIX22;
1364 return R_SPARC_TLS_IE_HI22;
1365 case R_SPARC_TLS_GD_LO10:
1366 if (is_local)
1367 return R_SPARC_TLS_LE_LOX10;
1368 return R_SPARC_TLS_IE_LO10;
1369 case R_SPARC_TLS_IE_HI22:
1370 if (is_local)
1371 return R_SPARC_TLS_LE_HIX22;
1372 return r_type;
1373 case R_SPARC_TLS_IE_LO10:
1374 if (is_local)
1375 return R_SPARC_TLS_LE_LOX10;
1376 return r_type;
1377 case R_SPARC_TLS_LDM_HI22:
1378 return R_SPARC_TLS_LE_HIX22;
1379 case R_SPARC_TLS_LDM_LO10:
1380 return R_SPARC_TLS_LE_LOX10;
1381 }
1382
1383 return r_type;
1384 }
1385 \f
1386 /* Look through the relocs for a section during the first phase, and
1387 allocate space in the global offset table or procedure linkage
1388 table. */
1389
1390 bfd_boolean
1391 _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1392 asection *sec, const Elf_Internal_Rela *relocs)
1393 {
1394 struct _bfd_sparc_elf_link_hash_table *htab;
1395 Elf_Internal_Shdr *symtab_hdr;
1396 struct elf_link_hash_entry **sym_hashes;
1397 const Elf_Internal_Rela *rel;
1398 const Elf_Internal_Rela *rel_end;
1399 asection *sreloc;
1400 int num_relocs;
1401 bfd_boolean checked_tlsgd = FALSE;
1402
1403 if (bfd_link_relocatable (info))
1404 return TRUE;
1405
1406 htab = _bfd_sparc_elf_hash_table (info);
1407 BFD_ASSERT (htab != NULL);
1408 symtab_hdr = &elf_symtab_hdr (abfd);
1409 sym_hashes = elf_sym_hashes (abfd);
1410
1411 sreloc = NULL;
1412
1413 if (ABI_64_P (abfd))
1414 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
1415 else
1416 num_relocs = sec->reloc_count;
1417
1418 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1419
1420 if (htab->elf.dynobj == NULL)
1421 htab->elf.dynobj = abfd;
1422 if (!create_ifunc_sections (htab->elf.dynobj, info))
1423 return FALSE;
1424
1425 rel_end = relocs + num_relocs;
1426 for (rel = relocs; rel < rel_end; rel++)
1427 {
1428 unsigned int r_type;
1429 unsigned int r_symndx;
1430 struct elf_link_hash_entry *h;
1431 struct _bfd_sparc_elf_link_hash_entry *eh;
1432 Elf_Internal_Sym *isym;
1433
1434 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1435 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1436
1437 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1438 {
1439 /* xgettext:c-format */
1440 _bfd_error_handler (_("%B: bad symbol index: %d"), abfd, r_symndx);
1441 return FALSE;
1442 }
1443
1444 isym = NULL;
1445 if (r_symndx < symtab_hdr->sh_info)
1446 {
1447 /* A local symbol. */
1448 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1449 abfd, r_symndx);
1450 if (isym == NULL)
1451 return FALSE;
1452
1453 /* Check relocation against local STT_GNU_IFUNC symbol. */
1454 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1455 {
1456 h = elf_sparc_get_local_sym_hash (htab, abfd, rel,
1457 TRUE);
1458 if (h == NULL)
1459 return FALSE;
1460
1461 /* Fake a STT_GNU_IFUNC symbol. */
1462 h->type = STT_GNU_IFUNC;
1463 h->def_regular = 1;
1464 h->ref_regular = 1;
1465 h->forced_local = 1;
1466 h->root.type = bfd_link_hash_defined;
1467 }
1468 else
1469 h = NULL;
1470 }
1471 else
1472 {
1473 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1474 while (h->root.type == bfd_link_hash_indirect
1475 || h->root.type == bfd_link_hash_warning)
1476 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1477
1478 /* PR15323, ref flags aren't set for references in the same
1479 object. */
1480 h->root.non_ir_ref_regular = 1;
1481 }
1482
1483 if (h && h->type == STT_GNU_IFUNC)
1484 {
1485 if (h->def_regular)
1486 {
1487 h->ref_regular = 1;
1488 h->plt.refcount += 1;
1489 }
1490 }
1491
1492 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1493 with R_SPARC_TLS_GD_HI22. */
1494 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1495 switch (r_type)
1496 {
1497 case R_SPARC_TLS_GD_HI22:
1498 {
1499 const Elf_Internal_Rela *relt;
1500
1501 for (relt = rel + 1; relt < rel_end; relt++)
1502 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1503 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1504 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1505 break;
1506 checked_tlsgd = TRUE;
1507 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1508 }
1509 break;
1510 case R_SPARC_TLS_GD_LO10:
1511 case R_SPARC_TLS_GD_ADD:
1512 case R_SPARC_TLS_GD_CALL:
1513 checked_tlsgd = TRUE;
1514 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1515 break;
1516 }
1517
1518 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
1519 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1520
1521 switch (r_type)
1522 {
1523 case R_SPARC_TLS_LDM_HI22:
1524 case R_SPARC_TLS_LDM_LO10:
1525 htab->tls_ldm_got.refcount += 1;
1526 if (eh != NULL)
1527 eh->has_got_reloc = 1;
1528 break;
1529
1530 case R_SPARC_TLS_LE_HIX22:
1531 case R_SPARC_TLS_LE_LOX10:
1532 if (bfd_link_pic (info))
1533 goto r_sparc_plt32;
1534 break;
1535
1536 case R_SPARC_TLS_IE_HI22:
1537 case R_SPARC_TLS_IE_LO10:
1538 if (bfd_link_pic (info))
1539 info->flags |= DF_STATIC_TLS;
1540 /* Fall through */
1541
1542 case R_SPARC_GOT10:
1543 case R_SPARC_GOT13:
1544 case R_SPARC_GOT22:
1545 case R_SPARC_GOTDATA_HIX22:
1546 case R_SPARC_GOTDATA_LOX10:
1547 case R_SPARC_GOTDATA_OP_HIX22:
1548 case R_SPARC_GOTDATA_OP_LOX10:
1549 case R_SPARC_TLS_GD_HI22:
1550 case R_SPARC_TLS_GD_LO10:
1551 /* This symbol requires a global offset table entry. */
1552 {
1553 int tls_type, old_tls_type;
1554
1555 switch (r_type)
1556 {
1557 default:
1558 case R_SPARC_GOT10:
1559 case R_SPARC_GOT13:
1560 case R_SPARC_GOT22:
1561 case R_SPARC_GOTDATA_OP_HIX22:
1562 case R_SPARC_GOTDATA_OP_LOX10:
1563 tls_type = GOT_NORMAL;
1564 break;
1565 case R_SPARC_TLS_GD_HI22:
1566 case R_SPARC_TLS_GD_LO10:
1567 tls_type = GOT_TLS_GD;
1568 break;
1569 case R_SPARC_TLS_IE_HI22:
1570 case R_SPARC_TLS_IE_LO10:
1571 tls_type = GOT_TLS_IE;
1572 break;
1573 }
1574
1575 if (h != NULL)
1576 {
1577 h->got.refcount += 1;
1578 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1579 }
1580 else
1581 {
1582 bfd_signed_vma *local_got_refcounts;
1583
1584 /* This is a global offset table entry for a local symbol. */
1585 local_got_refcounts = elf_local_got_refcounts (abfd);
1586 if (local_got_refcounts == NULL)
1587 {
1588 bfd_size_type size;
1589
1590 size = symtab_hdr->sh_info;
1591 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1592 local_got_refcounts = ((bfd_signed_vma *)
1593 bfd_zalloc (abfd, size));
1594 if (local_got_refcounts == NULL)
1595 return FALSE;
1596 elf_local_got_refcounts (abfd) = local_got_refcounts;
1597 _bfd_sparc_elf_local_got_tls_type (abfd)
1598 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1599 }
1600 switch (r_type)
1601 {
1602 case R_SPARC_GOTDATA_OP_HIX22:
1603 case R_SPARC_GOTDATA_OP_LOX10:
1604 break;
1605
1606 default:
1607 local_got_refcounts[r_symndx] += 1;
1608 break;
1609 }
1610 old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1611 }
1612
1613 /* If a TLS symbol is accessed using IE at least once,
1614 there is no point to use dynamic model for it. */
1615 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1616 && (old_tls_type != GOT_TLS_GD
1617 || tls_type != GOT_TLS_IE))
1618 {
1619 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1620 tls_type = old_tls_type;
1621 else
1622 {
1623 _bfd_error_handler
1624 /* xgettext:c-format */
1625 (_("%B: `%s' accessed both as normal and thread local symbol"),
1626 abfd, h ? h->root.root.string : "<local>");
1627 return FALSE;
1628 }
1629 }
1630
1631 if (old_tls_type != tls_type)
1632 {
1633 if (h != NULL)
1634 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1635 else
1636 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1637 }
1638 }
1639
1640 if (htab->elf.sgot == NULL)
1641 {
1642 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
1643 return FALSE;
1644 }
1645
1646 if (eh != NULL)
1647 eh->has_got_reloc = 1;
1648 break;
1649
1650 case R_SPARC_TLS_GD_CALL:
1651 case R_SPARC_TLS_LDM_CALL:
1652 if (bfd_link_pic (info))
1653 {
1654 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1655 __tls_get_addr. */
1656 struct bfd_link_hash_entry *bh = NULL;
1657 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1658 "__tls_get_addr", 0,
1659 bfd_und_section_ptr, 0,
1660 NULL, FALSE, FALSE,
1661 &bh))
1662 return FALSE;
1663 h = (struct elf_link_hash_entry *) bh;
1664 }
1665 else
1666 break;
1667 /* Fall through */
1668
1669 case R_SPARC_PLT32:
1670 case R_SPARC_WPLT30:
1671 case R_SPARC_HIPLT22:
1672 case R_SPARC_LOPLT10:
1673 case R_SPARC_PCPLT32:
1674 case R_SPARC_PCPLT22:
1675 case R_SPARC_PCPLT10:
1676 case R_SPARC_PLT64:
1677 /* This symbol requires a procedure linkage table entry. We
1678 actually build the entry in adjust_dynamic_symbol,
1679 because this might be a case of linking PIC code without
1680 linking in any dynamic objects, in which case we don't
1681 need to generate a procedure linkage table after all. */
1682
1683 if (h == NULL)
1684 {
1685 if (! ABI_64_P (abfd))
1686 {
1687 /* The Solaris native assembler will generate a WPLT30
1688 reloc for a local symbol if you assemble a call from
1689 one section to another when using -K pic. We treat
1690 it as WDISP30. */
1691 if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
1692 goto r_sparc_plt32;
1693 break;
1694 }
1695 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1696 else if (r_type == R_SPARC_WPLT30)
1697 break;
1698
1699 /* It does not make sense to have a procedure linkage
1700 table entry for a local symbol. */
1701 bfd_set_error (bfd_error_bad_value);
1702 return FALSE;
1703 }
1704
1705 h->needs_plt = 1;
1706
1707 {
1708 int this_r_type;
1709
1710 this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
1711 if (this_r_type == R_SPARC_PLT32
1712 || this_r_type == R_SPARC_PLT64)
1713 goto r_sparc_plt32;
1714 }
1715 h->plt.refcount += 1;
1716
1717 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1718 eh->has_got_reloc = 1;
1719 break;
1720
1721 case R_SPARC_PC10:
1722 case R_SPARC_PC22:
1723 case R_SPARC_PC_HH22:
1724 case R_SPARC_PC_HM10:
1725 case R_SPARC_PC_LM22:
1726 if (h != NULL)
1727 h->non_got_ref = 1;
1728
1729 if (h != NULL
1730 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1731 break;
1732 /* Fall through. */
1733
1734 case R_SPARC_DISP8:
1735 case R_SPARC_DISP16:
1736 case R_SPARC_DISP32:
1737 case R_SPARC_DISP64:
1738 case R_SPARC_WDISP30:
1739 case R_SPARC_WDISP22:
1740 case R_SPARC_WDISP19:
1741 case R_SPARC_WDISP16:
1742 case R_SPARC_WDISP10:
1743 case R_SPARC_8:
1744 case R_SPARC_16:
1745 case R_SPARC_32:
1746 case R_SPARC_HI22:
1747 case R_SPARC_22:
1748 case R_SPARC_13:
1749 case R_SPARC_LO10:
1750 case R_SPARC_UA16:
1751 case R_SPARC_UA32:
1752 case R_SPARC_10:
1753 case R_SPARC_11:
1754 case R_SPARC_64:
1755 case R_SPARC_OLO10:
1756 case R_SPARC_HH22:
1757 case R_SPARC_HM10:
1758 case R_SPARC_LM22:
1759 case R_SPARC_7:
1760 case R_SPARC_5:
1761 case R_SPARC_6:
1762 case R_SPARC_HIX22:
1763 case R_SPARC_LOX10:
1764 case R_SPARC_H44:
1765 case R_SPARC_M44:
1766 case R_SPARC_L44:
1767 case R_SPARC_H34:
1768 case R_SPARC_UA64:
1769 if (h != NULL)
1770 h->non_got_ref = 1;
1771
1772 if (eh != NULL && (sec->flags & SEC_CODE) != 0)
1773 eh->has_non_got_reloc = 1;
1774
1775 r_sparc_plt32:
1776 if (h != NULL && !bfd_link_pic (info))
1777 {
1778 /* We may need a .plt entry if the function this reloc
1779 refers to is in a shared lib. */
1780 h->plt.refcount += 1;
1781 }
1782
1783 /* If we are creating a shared library, and this is a reloc
1784 against a global symbol, or a non PC relative reloc
1785 against a local symbol, then we need to copy the reloc
1786 into the shared library. However, if we are linking with
1787 -Bsymbolic, we do not need to copy a reloc against a
1788 global symbol which is defined in an object we are
1789 including in the link (i.e., DEF_REGULAR is set). At
1790 this point we have not seen all the input files, so it is
1791 possible that DEF_REGULAR is not set now but will be set
1792 later (it is never cleared). In case of a weak definition,
1793 DEF_REGULAR may be cleared later by a strong definition in
1794 a shared library. We account for that possibility below by
1795 storing information in the relocs_copied field of the hash
1796 table entry. A similar situation occurs when creating
1797 shared libraries and symbol visibility changes render the
1798 symbol local.
1799
1800 If on the other hand, we are creating an executable, we
1801 may need to keep relocations for symbols satisfied by a
1802 dynamic library if we manage to avoid copy relocs for the
1803 symbol. */
1804 if ((bfd_link_pic (info)
1805 && (sec->flags & SEC_ALLOC) != 0
1806 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1807 || (h != NULL
1808 && (! SYMBOLIC_BIND (info, h)
1809 || h->root.type == bfd_link_hash_defweak
1810 || !h->def_regular))))
1811 || (!bfd_link_pic (info)
1812 && (sec->flags & SEC_ALLOC) != 0
1813 && h != NULL
1814 && (h->root.type == bfd_link_hash_defweak
1815 || !h->def_regular))
1816 || (!bfd_link_pic (info)
1817 && h != NULL
1818 && h->type == STT_GNU_IFUNC))
1819 {
1820 struct _bfd_sparc_elf_dyn_relocs *p;
1821 struct _bfd_sparc_elf_dyn_relocs **head;
1822
1823 /* When creating a shared object, we must copy these
1824 relocs into the output file. We create a reloc
1825 section in dynobj and make room for the reloc. */
1826 if (sreloc == NULL)
1827 {
1828 sreloc = _bfd_elf_make_dynamic_reloc_section
1829 (sec, htab->elf.dynobj, htab->word_align_power,
1830 abfd, /*rela?*/ TRUE);
1831
1832 if (sreloc == NULL)
1833 return FALSE;
1834 }
1835
1836 /* If this is a global symbol, we count the number of
1837 relocations we need for this symbol. */
1838 if (h != NULL)
1839 head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
1840 else
1841 {
1842 /* Track dynamic relocs needed for local syms too.
1843 We really need local syms available to do this
1844 easily. Oh well. */
1845 asection *s;
1846 void *vpp;
1847
1848 BFD_ASSERT (isym != NULL);
1849 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1850 if (s == NULL)
1851 s = sec;
1852
1853 vpp = &elf_section_data (s)->local_dynrel;
1854 head = (struct _bfd_sparc_elf_dyn_relocs **) vpp;
1855 }
1856
1857 p = *head;
1858 if (p == NULL || p->sec != sec)
1859 {
1860 bfd_size_type amt = sizeof *p;
1861 p = ((struct _bfd_sparc_elf_dyn_relocs *)
1862 bfd_alloc (htab->elf.dynobj, amt));
1863 if (p == NULL)
1864 return FALSE;
1865 p->next = *head;
1866 *head = p;
1867 p->sec = sec;
1868 p->count = 0;
1869 p->pc_count = 0;
1870 }
1871
1872 p->count += 1;
1873 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1874 p->pc_count += 1;
1875 }
1876
1877 break;
1878
1879 case R_SPARC_GNU_VTINHERIT:
1880 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1881 return FALSE;
1882 break;
1883
1884 case R_SPARC_GNU_VTENTRY:
1885 BFD_ASSERT (h != NULL);
1886 if (h != NULL
1887 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1888 return FALSE;
1889 break;
1890
1891 case R_SPARC_REGISTER:
1892 /* Nothing to do. */
1893 break;
1894
1895 default:
1896 break;
1897 }
1898 }
1899
1900 return TRUE;
1901 }
1902 \f
1903 asection *
1904 _bfd_sparc_elf_gc_mark_hook (asection *sec,
1905 struct bfd_link_info *info,
1906 Elf_Internal_Rela *rel,
1907 struct elf_link_hash_entry *h,
1908 Elf_Internal_Sym *sym)
1909 {
1910 if (h != NULL)
1911 switch (SPARC_ELF_R_TYPE (rel->r_info))
1912 {
1913 case R_SPARC_GNU_VTINHERIT:
1914 case R_SPARC_GNU_VTENTRY:
1915 return NULL;
1916 }
1917
1918 /* FIXME: The test here, in check_relocs and in relocate_section
1919 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1920 if (bfd_link_pic (info))
1921 {
1922 switch (SPARC_ELF_R_TYPE (rel->r_info))
1923 {
1924 case R_SPARC_TLS_GD_CALL:
1925 case R_SPARC_TLS_LDM_CALL:
1926 /* This reloc implicitly references __tls_get_addr. We know
1927 another reloc will reference the same symbol as the one
1928 on this reloc, so the real symbol and section will be
1929 gc marked when processing the other reloc. That lets
1930 us handle __tls_get_addr here. */
1931 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1932 FALSE, FALSE, TRUE);
1933 BFD_ASSERT (h != NULL);
1934 h->mark = 1;
1935 if (h->u.weakdef != NULL)
1936 h->u.weakdef->mark = 1;
1937 sym = NULL;
1938 }
1939 }
1940
1941 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1942 }
1943
1944 static Elf_Internal_Rela *
1945 sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
1946 Elf_Internal_Rela *relend,
1947 bfd_vma offset)
1948 {
1949 while (rel < relend)
1950 {
1951 if (rel->r_offset == offset)
1952 return rel;
1953 rel++;
1954 }
1955 return NULL;
1956 }
1957
1958 /* Update the got entry reference counts for the section being removed. */
1959 bfd_boolean
1960 _bfd_sparc_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
1961 asection *sec, const Elf_Internal_Rela *relocs)
1962 {
1963 struct _bfd_sparc_elf_link_hash_table *htab;
1964 Elf_Internal_Shdr *symtab_hdr;
1965 struct elf_link_hash_entry **sym_hashes;
1966 bfd_signed_vma *local_got_refcounts;
1967 const Elf_Internal_Rela *rel, *relend;
1968
1969 if (bfd_link_relocatable (info))
1970 return TRUE;
1971
1972 BFD_ASSERT (is_sparc_elf (abfd) || sec->reloc_count == 0);
1973
1974 elf_section_data (sec)->local_dynrel = NULL;
1975
1976 htab = _bfd_sparc_elf_hash_table (info);
1977 BFD_ASSERT (htab != NULL);
1978 symtab_hdr = &elf_symtab_hdr (abfd);
1979 sym_hashes = elf_sym_hashes (abfd);
1980 local_got_refcounts = elf_local_got_refcounts (abfd);
1981
1982 relend = relocs + sec->reloc_count;
1983 for (rel = relocs; rel < relend; rel++)
1984 {
1985 unsigned long r_symndx;
1986 unsigned int r_type;
1987 struct elf_link_hash_entry *h = NULL;
1988
1989 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1990 if (r_symndx >= symtab_hdr->sh_info)
1991 {
1992 struct _bfd_sparc_elf_link_hash_entry *eh;
1993 struct _bfd_sparc_elf_dyn_relocs **pp;
1994 struct _bfd_sparc_elf_dyn_relocs *p;
1995
1996 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1997 while (h->root.type == bfd_link_hash_indirect
1998 || h->root.type == bfd_link_hash_warning)
1999 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2000 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2001 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
2002 if (p->sec == sec)
2003 {
2004 /* Everything must go for SEC. */
2005 *pp = p->next;
2006 break;
2007 }
2008 }
2009
2010 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2011 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
2012 switch (r_type)
2013 {
2014 case R_SPARC_TLS_LDM_HI22:
2015 case R_SPARC_TLS_LDM_LO10:
2016 if (_bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount > 0)
2017 _bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount -= 1;
2018 break;
2019
2020 case R_SPARC_TLS_GD_HI22:
2021 case R_SPARC_TLS_GD_LO10:
2022 case R_SPARC_TLS_IE_HI22:
2023 case R_SPARC_TLS_IE_LO10:
2024 case R_SPARC_GOT10:
2025 case R_SPARC_GOT13:
2026 case R_SPARC_GOT22:
2027 case R_SPARC_GOTDATA_HIX22:
2028 case R_SPARC_GOTDATA_LOX10:
2029 case R_SPARC_GOTDATA_OP_HIX22:
2030 case R_SPARC_GOTDATA_OP_LOX10:
2031 if (h != NULL)
2032 {
2033 if (h->got.refcount > 0)
2034 h->got.refcount--;
2035 }
2036 else
2037 {
2038 switch (r_type)
2039 {
2040 case R_SPARC_GOTDATA_OP_HIX22:
2041 case R_SPARC_GOTDATA_OP_LOX10:
2042 break;
2043
2044 default:
2045 if (local_got_refcounts[r_symndx] > 0)
2046 local_got_refcounts[r_symndx]--;
2047 break;
2048 }
2049 }
2050 break;
2051
2052 case R_SPARC_PC10:
2053 case R_SPARC_PC22:
2054 case R_SPARC_PC_HH22:
2055 case R_SPARC_PC_HM10:
2056 case R_SPARC_PC_LM22:
2057 if (h != NULL
2058 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2059 break;
2060 /* Fall through. */
2061
2062 case R_SPARC_DISP8:
2063 case R_SPARC_DISP16:
2064 case R_SPARC_DISP32:
2065 case R_SPARC_DISP64:
2066 case R_SPARC_WDISP30:
2067 case R_SPARC_WDISP22:
2068 case R_SPARC_WDISP19:
2069 case R_SPARC_WDISP16:
2070 case R_SPARC_WDISP10:
2071 case R_SPARC_8:
2072 case R_SPARC_16:
2073 case R_SPARC_32:
2074 case R_SPARC_HI22:
2075 case R_SPARC_22:
2076 case R_SPARC_13:
2077 case R_SPARC_LO10:
2078 case R_SPARC_UA16:
2079 case R_SPARC_UA32:
2080 case R_SPARC_PLT32:
2081 case R_SPARC_10:
2082 case R_SPARC_11:
2083 case R_SPARC_64:
2084 case R_SPARC_OLO10:
2085 case R_SPARC_HH22:
2086 case R_SPARC_HM10:
2087 case R_SPARC_LM22:
2088 case R_SPARC_7:
2089 case R_SPARC_5:
2090 case R_SPARC_6:
2091 case R_SPARC_HIX22:
2092 case R_SPARC_LOX10:
2093 case R_SPARC_H44:
2094 case R_SPARC_M44:
2095 case R_SPARC_L44:
2096 case R_SPARC_H34:
2097 case R_SPARC_UA64:
2098 if (bfd_link_pic (info))
2099 break;
2100 /* Fall through. */
2101
2102 case R_SPARC_WPLT30:
2103 if (h != NULL)
2104 {
2105 if (h->plt.refcount > 0)
2106 h->plt.refcount--;
2107 }
2108 break;
2109
2110 default:
2111 break;
2112 }
2113 }
2114
2115 return TRUE;
2116 }
2117
2118 /* Remove undefined weak symbol from the dynamic symbol table if it
2119 is resolved to 0. */
2120
2121 bfd_boolean
2122 _bfd_sparc_elf_fixup_symbol (struct bfd_link_info *info,
2123 struct elf_link_hash_entry *h)
2124 {
2125 if (h->dynindx != -1
2126 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
2127 _bfd_sparc_elf_hash_entry (h)))
2128 {
2129 h->dynindx = -1;
2130 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
2131 h->dynstr_index);
2132 }
2133 return TRUE;
2134 }
2135
2136 /* Adjust a symbol defined by a dynamic object and referenced by a
2137 regular object. The current definition is in some section of the
2138 dynamic object, but we're not including those sections. We have to
2139 change the definition to something the rest of the link can
2140 understand. */
2141
2142 bfd_boolean
2143 _bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
2144 struct elf_link_hash_entry *h)
2145 {
2146 struct _bfd_sparc_elf_link_hash_table *htab;
2147 struct _bfd_sparc_elf_link_hash_entry * eh;
2148 struct _bfd_sparc_elf_dyn_relocs *p;
2149 asection *s, *srel;
2150
2151 htab = _bfd_sparc_elf_hash_table (info);
2152 BFD_ASSERT (htab != NULL);
2153
2154 /* Make sure we know what is going on here. */
2155 BFD_ASSERT (htab->elf.dynobj != NULL
2156 && (h->needs_plt
2157 || h->type == STT_GNU_IFUNC
2158 || h->u.weakdef != NULL
2159 || (h->def_dynamic
2160 && h->ref_regular
2161 && !h->def_regular)));
2162
2163 /* If this is a function, put it in the procedure linkage table. We
2164 will fill in the contents of the procedure linkage table later
2165 (although we could actually do it here). The STT_NOTYPE
2166 condition is a hack specifically for the Oracle libraries
2167 delivered for Solaris; for some inexplicable reason, they define
2168 some of their functions as STT_NOTYPE when they really should be
2169 STT_FUNC. */
2170 if (h->type == STT_FUNC
2171 || h->type == STT_GNU_IFUNC
2172 || h->needs_plt
2173 || (h->type == STT_NOTYPE
2174 && (h->root.type == bfd_link_hash_defined
2175 || h->root.type == bfd_link_hash_defweak)
2176 && (h->root.u.def.section->flags & SEC_CODE) != 0))
2177 {
2178 if (h->plt.refcount <= 0
2179 || (h->type != STT_GNU_IFUNC
2180 && (SYMBOL_CALLS_LOCAL (info, h)
2181 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2182 && h->root.type == bfd_link_hash_undefweak))))
2183 {
2184 /* This case can occur if we saw a WPLT30 reloc in an input
2185 file, but the symbol was never referred to by a dynamic
2186 object, or if all references were garbage collected. In
2187 such a case, we don't actually need to build a procedure
2188 linkage table, and we can just do a WDISP30 reloc instead. */
2189 h->plt.offset = (bfd_vma) -1;
2190 h->needs_plt = 0;
2191 }
2192
2193 return TRUE;
2194 }
2195 else
2196 h->plt.offset = (bfd_vma) -1;
2197
2198 /* If this is a weak symbol, and there is a real definition, the
2199 processor independent code will have arranged for us to see the
2200 real definition first, and we can just use the same value. */
2201 if (h->u.weakdef != NULL)
2202 {
2203 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2204 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2205 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2206 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2207 return TRUE;
2208 }
2209
2210 /* This is a reference to a symbol defined by a dynamic object which
2211 is not a function. */
2212
2213 /* If we are creating a shared library, we must presume that the
2214 only references to the symbol are via the global offset table.
2215 For such cases we need not do anything here; the relocations will
2216 be handled correctly by relocate_section. */
2217 if (bfd_link_pic (info))
2218 return TRUE;
2219
2220 /* If there are no references to this symbol that do not use the
2221 GOT, we don't need to generate a copy reloc. */
2222 if (!h->non_got_ref)
2223 return TRUE;
2224
2225 /* If -z nocopyreloc was given, we won't generate them either. */
2226 if (info->nocopyreloc)
2227 {
2228 h->non_got_ref = 0;
2229 return TRUE;
2230 }
2231
2232 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2233 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2234 {
2235 s = p->sec->output_section;
2236 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2237 break;
2238 }
2239
2240 /* If we didn't find any dynamic relocs in read-only sections, then
2241 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2242 if (p == NULL)
2243 {
2244 h->non_got_ref = 0;
2245 return TRUE;
2246 }
2247
2248 /* We must allocate the symbol in our .dynbss section, which will
2249 become part of the .bss section of the executable. There will be
2250 an entry for this symbol in the .dynsym section. The dynamic
2251 object will contain position independent code, so all references
2252 from the dynamic object to this symbol will go through the global
2253 offset table. The dynamic linker will use the .dynsym entry to
2254 determine the address it must put in the global offset table, so
2255 both the dynamic object and the regular object will refer to the
2256 same memory location for the variable. */
2257
2258 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2259 to copy the initial value out of the dynamic object and into the
2260 runtime process image. We need to remember the offset into the
2261 .rel.bss section we are going to use. */
2262 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2263 {
2264 s = htab->elf.sdynrelro;
2265 srel = htab->elf.sreldynrelro;
2266 }
2267 else
2268 {
2269 s = htab->elf.sdynbss;
2270 srel = htab->elf.srelbss;
2271 }
2272 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2273 {
2274 srel->size += SPARC_ELF_RELA_BYTES (htab);
2275 h->needs_copy = 1;
2276 }
2277
2278 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2279 }
2280
2281 /* Allocate space in .plt, .got and associated reloc sections for
2282 dynamic relocs. */
2283
2284 static bfd_boolean
2285 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2286 {
2287 struct bfd_link_info *info;
2288 struct _bfd_sparc_elf_link_hash_table *htab;
2289 struct _bfd_sparc_elf_link_hash_entry *eh;
2290 struct _bfd_sparc_elf_dyn_relocs *p;
2291 bfd_boolean resolved_to_zero;
2292
2293 if (h->root.type == bfd_link_hash_indirect)
2294 return TRUE;
2295
2296 info = (struct bfd_link_info *) inf;
2297 htab = _bfd_sparc_elf_hash_table (info);
2298 BFD_ASSERT (htab != NULL);
2299
2300 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2301 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
2302
2303 if ((htab->elf.dynamic_sections_created
2304 && h->plt.refcount > 0)
2305 || (h->type == STT_GNU_IFUNC
2306 && h->def_regular
2307 && h->ref_regular))
2308 {
2309 /* Make sure this symbol is output as a dynamic symbol.
2310 Undefined weak syms won't yet be marked as dynamic. */
2311 if (h->dynindx == -1
2312 && !h->forced_local
2313 && !resolved_to_zero
2314 && h->root.type == bfd_link_hash_undefweak)
2315 {
2316 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2317 return FALSE;
2318 }
2319
2320 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
2321 || (h->type == STT_GNU_IFUNC
2322 && h->def_regular))
2323 {
2324 asection *s = htab->elf.splt;
2325
2326 if (s == NULL)
2327 s = htab->elf.iplt;
2328
2329 /* Allocate room for the header. */
2330 if (s->size == 0)
2331 {
2332 s->size = htab->plt_header_size;
2333
2334 /* Allocate space for the .rela.plt.unloaded relocations. */
2335 if (htab->is_vxworks && !bfd_link_pic (info))
2336 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2337 }
2338
2339 /* The procedure linkage table size is bounded by the magnitude
2340 of the offset we can describe in the entry. */
2341 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
2342 (((bfd_vma)1 << 31) << 1) : 0x400000))
2343 {
2344 bfd_set_error (bfd_error_bad_value);
2345 return FALSE;
2346 }
2347
2348 if (SPARC_ELF_WORD_BYTES(htab) == 8
2349 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2350 {
2351 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2352
2353
2354 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2355
2356 h->plt.offset = (s->size - (off * 8));
2357 }
2358 else
2359 h->plt.offset = s->size;
2360
2361 /* If this symbol is not defined in a regular file, and we are
2362 not generating a shared library, then set the symbol to this
2363 location in the .plt. This is required to make function
2364 pointers compare as equal between the normal executable and
2365 the shared library. */
2366 if (! bfd_link_pic (info)
2367 && !h->def_regular)
2368 {
2369 h->root.u.def.section = s;
2370 h->root.u.def.value = h->plt.offset;
2371 }
2372
2373 /* Make room for this entry. */
2374 s->size += htab->plt_entry_size;
2375
2376 /* There should be no PLT relocations against resolved undefined
2377 weak symbols in the executable. */
2378 if (!resolved_to_zero)
2379 {
2380 /* We also need to make an entry in the .rela.plt section. */
2381 if (s == htab->elf.splt)
2382 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
2383 else
2384 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
2385 }
2386
2387 if (htab->is_vxworks)
2388 {
2389 /* Allocate space for the .got.plt entry. */
2390 htab->elf.sgotplt->size += 4;
2391
2392 /* ...and for the .rela.plt.unloaded relocations. */
2393 if (!bfd_link_pic (info))
2394 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2395 }
2396 }
2397 else
2398 {
2399 h->plt.offset = (bfd_vma) -1;
2400 h->needs_plt = 0;
2401 }
2402 }
2403 else
2404 {
2405 h->plt.offset = (bfd_vma) -1;
2406 h->needs_plt = 0;
2407 }
2408
2409 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2410 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2411 if (h->got.refcount > 0
2412 && !bfd_link_pic (info)
2413 && h->dynindx == -1
2414 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2415 h->got.offset = (bfd_vma) -1;
2416 else if (h->got.refcount > 0)
2417 {
2418 asection *s;
2419 bfd_boolean dyn;
2420 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2421
2422 /* Make sure this symbol is output as a dynamic symbol.
2423 Undefined weak syms won't yet be marked as dynamic. */
2424 if (h->dynindx == -1
2425 && !h->forced_local
2426 && !resolved_to_zero
2427 && h->root.type == bfd_link_hash_undefweak)
2428 {
2429 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2430 return FALSE;
2431 }
2432
2433 s = htab->elf.sgot;
2434 h->got.offset = s->size;
2435 s->size += SPARC_ELF_WORD_BYTES (htab);
2436 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2437 if (tls_type == GOT_TLS_GD)
2438 s->size += SPARC_ELF_WORD_BYTES (htab);
2439 dyn = htab->elf.dynamic_sections_created;
2440 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2441 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
2442 global. No dynamic relocations are needed against resolved
2443 undefined weak symbols in an executable. */
2444 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
2445 || tls_type == GOT_TLS_IE
2446 || h->type == STT_GNU_IFUNC)
2447 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2448 else if (tls_type == GOT_TLS_GD)
2449 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
2450 else if (((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2451 && !resolved_to_zero)
2452 || h->root.type != bfd_link_hash_undefweak)
2453 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2454 bfd_link_pic (info),
2455 h))
2456 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2457 }
2458 else
2459 h->got.offset = (bfd_vma) -1;
2460
2461 if (eh->dyn_relocs == NULL)
2462 return TRUE;
2463
2464 /* In the shared -Bsymbolic case, discard space allocated for
2465 dynamic pc-relative relocs against symbols which turn out to be
2466 defined in regular objects. For the normal shared case, discard
2467 space for pc-relative relocs that have become local due to symbol
2468 visibility changes. */
2469
2470 if (bfd_link_pic (info))
2471 {
2472 if (SYMBOL_CALLS_LOCAL (info, h))
2473 {
2474 struct _bfd_sparc_elf_dyn_relocs **pp;
2475
2476 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2477 {
2478 p->count -= p->pc_count;
2479 p->pc_count = 0;
2480 if (p->count == 0)
2481 *pp = p->next;
2482 else
2483 pp = &p->next;
2484 }
2485 }
2486
2487 if (htab->is_vxworks)
2488 {
2489 struct _bfd_sparc_elf_dyn_relocs **pp;
2490
2491 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2492 {
2493 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2494 *pp = p->next;
2495 else
2496 pp = &p->next;
2497 }
2498 }
2499
2500 /* Also discard relocs on undefined weak syms with non-default
2501 visibility or in PIE. */
2502 if (eh->dyn_relocs != NULL
2503 && h->root.type == bfd_link_hash_undefweak)
2504 {
2505 /* An undefined weak symbol is never
2506 bound locally in a shared library. */
2507
2508 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2509 || resolved_to_zero)
2510 {
2511 if (h->non_got_ref)
2512 {
2513 /* Keep dynamic non-GOT/non-PLT relocation so that we
2514 can branch to 0 without PLT. */
2515 struct _bfd_sparc_elf_dyn_relocs **pp;
2516
2517 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2518 if (p->pc_count == 0)
2519 *pp = p->next;
2520 else
2521 {
2522 /* Remove other relocations. */
2523 p->count = p->pc_count;
2524 pp = &p->next;
2525 }
2526
2527 if (eh->dyn_relocs != NULL)
2528 {
2529 /* Make sure undefined weak symbols are output
2530 as dynamic symbols in PIEs for dynamic non-GOT
2531 non-PLT reloations. */
2532 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2533 return FALSE;
2534 }
2535 }
2536 else
2537 eh->dyn_relocs = NULL;
2538 }
2539
2540 /* Make sure undefined weak symbols are output as a dynamic
2541 symbol in PIEs. */
2542 else if (h->dynindx == -1
2543 && !h->forced_local)
2544 {
2545 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2546 return FALSE;
2547 }
2548 }
2549 }
2550 else
2551 {
2552 /* For the non-shared case, discard space for relocs against
2553 symbols which turn out to need copy relocs or are not
2554 dynamic. */
2555
2556 if ((!h->non_got_ref
2557 || (h->root.type == bfd_link_hash_undefweak
2558 && !resolved_to_zero))
2559 && ((h->def_dynamic
2560 && !h->def_regular)
2561 || (htab->elf.dynamic_sections_created
2562 && (h->root.type == bfd_link_hash_undefweak
2563 || h->root.type == bfd_link_hash_undefined))))
2564 {
2565 /* Make sure this symbol is output as a dynamic symbol.
2566 Undefined weak syms won't yet be marked as dynamic. */
2567 if (h->dynindx == -1
2568 && !h->forced_local
2569 && !resolved_to_zero
2570 && h->root.type == bfd_link_hash_undefweak)
2571 {
2572 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2573 return FALSE;
2574 }
2575
2576 /* If that succeeded, we know we'll be keeping all the
2577 relocs. */
2578 if (h->dynindx != -1)
2579 goto keep;
2580 }
2581
2582 eh->dyn_relocs = NULL;
2583
2584 keep: ;
2585 }
2586
2587 /* Finally, allocate space. */
2588 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2589 {
2590 asection *sreloc = elf_section_data (p->sec)->sreloc;
2591 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2592 }
2593
2594 return TRUE;
2595 }
2596
2597 /* Allocate space in .plt, .got and associated reloc sections for
2598 local dynamic relocs. */
2599
2600 static bfd_boolean
2601 allocate_local_dynrelocs (void **slot, void *inf)
2602 {
2603 struct elf_link_hash_entry *h
2604 = (struct elf_link_hash_entry *) *slot;
2605
2606 if (h->type != STT_GNU_IFUNC
2607 || !h->def_regular
2608 || !h->ref_regular
2609 || !h->forced_local
2610 || h->root.type != bfd_link_hash_defined)
2611 abort ();
2612
2613 return allocate_dynrelocs (h, inf);
2614 }
2615
2616 /* Find any dynamic relocs that apply to read-only sections. */
2617
2618 static bfd_boolean
2619 readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2620 {
2621 struct _bfd_sparc_elf_link_hash_entry *eh;
2622 struct _bfd_sparc_elf_dyn_relocs *p;
2623
2624 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2625 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2626 {
2627 asection *s = p->sec->output_section;
2628
2629 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2630 {
2631 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2632
2633 info->flags |= DF_TEXTREL;
2634
2635 /* Not an error, just cut short the traversal. */
2636 return FALSE;
2637 }
2638 }
2639 return TRUE;
2640 }
2641
2642 /* Return true if the dynamic symbol for a given section should be
2643 omitted when creating a shared library. */
2644
2645 bfd_boolean
2646 _bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2647 struct bfd_link_info *info,
2648 asection *p)
2649 {
2650 /* We keep the .got section symbol so that explicit relocations
2651 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2652 can be turned into relocations against the .got symbol. */
2653 if (strcmp (p->name, ".got") == 0)
2654 return FALSE;
2655
2656 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2657 }
2658
2659 /* Set the sizes of the dynamic sections. */
2660
2661 bfd_boolean
2662 _bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2663 struct bfd_link_info *info)
2664 {
2665 struct _bfd_sparc_elf_link_hash_table *htab;
2666 bfd *dynobj;
2667 asection *s;
2668 bfd *ibfd;
2669
2670 htab = _bfd_sparc_elf_hash_table (info);
2671 BFD_ASSERT (htab != NULL);
2672 dynobj = htab->elf.dynobj;
2673 BFD_ASSERT (dynobj != NULL);
2674
2675 if (elf_hash_table (info)->dynamic_sections_created)
2676 {
2677 /* Set the contents of the .interp section to the interpreter. */
2678 if (bfd_link_executable (info) && !info->nointerp)
2679 {
2680 s = bfd_get_linker_section (dynobj, ".interp");
2681 BFD_ASSERT (s != NULL);
2682 s->size = htab->dynamic_interpreter_size;
2683 s->contents = (unsigned char *) htab->dynamic_interpreter;
2684 htab->interp = s;
2685 }
2686 }
2687
2688 /* Set up .got offsets for local syms, and space for local dynamic
2689 relocs. */
2690 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2691 {
2692 bfd_signed_vma *local_got;
2693 bfd_signed_vma *end_local_got;
2694 char *local_tls_type;
2695 bfd_size_type locsymcount;
2696 Elf_Internal_Shdr *symtab_hdr;
2697 asection *srel;
2698
2699 if (! is_sparc_elf (ibfd))
2700 continue;
2701
2702 for (s = ibfd->sections; s != NULL; s = s->next)
2703 {
2704 struct _bfd_sparc_elf_dyn_relocs *p;
2705
2706 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2707 {
2708 if (!bfd_is_abs_section (p->sec)
2709 && bfd_is_abs_section (p->sec->output_section))
2710 {
2711 /* Input section has been discarded, either because
2712 it is a copy of a linkonce section or due to
2713 linker script /DISCARD/, so we'll be discarding
2714 the relocs too. */
2715 }
2716 else if (htab->is_vxworks
2717 && strcmp (p->sec->output_section->name,
2718 ".tls_vars") == 0)
2719 {
2720 /* Relocations in vxworks .tls_vars sections are
2721 handled specially by the loader. */
2722 }
2723 else if (p->count != 0)
2724 {
2725 srel = elf_section_data (p->sec)->sreloc;
2726 if (!htab->elf.dynamic_sections_created)
2727 srel = htab->elf.irelplt;
2728 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2729 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2730 info->flags |= DF_TEXTREL;
2731 }
2732 }
2733 }
2734
2735 local_got = elf_local_got_refcounts (ibfd);
2736 if (!local_got)
2737 continue;
2738
2739 symtab_hdr = &elf_symtab_hdr (ibfd);
2740 locsymcount = symtab_hdr->sh_info;
2741 end_local_got = local_got + locsymcount;
2742 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
2743 s = htab->elf.sgot;
2744 srel = htab->elf.srelgot;
2745 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2746 {
2747 if (*local_got > 0)
2748 {
2749 *local_got = s->size;
2750 s->size += SPARC_ELF_WORD_BYTES (htab);
2751 if (*local_tls_type == GOT_TLS_GD)
2752 s->size += SPARC_ELF_WORD_BYTES (htab);
2753 if (bfd_link_pic (info)
2754 || *local_tls_type == GOT_TLS_GD
2755 || *local_tls_type == GOT_TLS_IE)
2756 srel->size += SPARC_ELF_RELA_BYTES (htab);
2757 }
2758 else
2759 *local_got = (bfd_vma) -1;
2760 }
2761 }
2762
2763 if (htab->tls_ldm_got.refcount > 0)
2764 {
2765 /* Allocate 2 got entries and 1 dynamic reloc for
2766 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
2767 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2768 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2769 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2770 }
2771 else
2772 htab->tls_ldm_got.offset = -1;
2773
2774 /* Allocate global sym .plt and .got entries, and space for global
2775 sym dynamic relocs. */
2776 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2777
2778 /* Allocate .plt and .got entries, and space for local symbols. */
2779 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2780
2781 if (! ABI_64_P (output_bfd)
2782 && !htab->is_vxworks
2783 && elf_hash_table (info)->dynamic_sections_created)
2784 {
2785 /* Make space for the trailing nop in .plt. */
2786 if (htab->elf.splt->size > 0)
2787 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
2788
2789 /* If the .got section is more than 0x1000 bytes, we add
2790 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2791 bit relocations have a greater chance of working.
2792
2793 FIXME: Make this optimization work for 64-bit too. */
2794 if (htab->elf.sgot->size >= 0x1000
2795 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2796 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2797 }
2798
2799 /* The check_relocs and adjust_dynamic_symbol entry points have
2800 determined the sizes of the various dynamic sections. Allocate
2801 memory for them. */
2802 for (s = dynobj->sections; s != NULL; s = s->next)
2803 {
2804 if ((s->flags & SEC_LINKER_CREATED) == 0)
2805 continue;
2806
2807 if (s == htab->elf.splt
2808 || s == htab->elf.sgot
2809 || s == htab->elf.sdynbss
2810 || s == htab->elf.sdynrelro
2811 || s == htab->elf.iplt
2812 || s == htab->elf.sgotplt)
2813 {
2814 /* Strip this section if we don't need it; see the
2815 comment below. */
2816 }
2817 else if (CONST_STRNEQ (s->name, ".rela"))
2818 {
2819 if (s->size != 0)
2820 {
2821 /* We use the reloc_count field as a counter if we need
2822 to copy relocs into the output file. */
2823 s->reloc_count = 0;
2824 }
2825 }
2826 else
2827 {
2828 /* It's not one of our sections. */
2829 continue;
2830 }
2831
2832 if (s->size == 0)
2833 {
2834 /* If we don't need this section, strip it from the
2835 output file. This is mostly to handle .rela.bss and
2836 .rela.plt. We must create both sections in
2837 create_dynamic_sections, because they must be created
2838 before the linker maps input sections to output
2839 sections. The linker does that before
2840 adjust_dynamic_symbol is called, and it is that
2841 function which decides whether anything needs to go
2842 into these sections. */
2843 s->flags |= SEC_EXCLUDE;
2844 continue;
2845 }
2846
2847 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2848 continue;
2849
2850 /* Allocate memory for the section contents. Zero the memory
2851 for the benefit of .rela.plt, which has 4 unused entries
2852 at the beginning, and we don't want garbage. */
2853 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2854 if (s->contents == NULL)
2855 return FALSE;
2856 }
2857
2858 if (elf_hash_table (info)->dynamic_sections_created)
2859 {
2860 /* Add some entries to the .dynamic section. We fill in the
2861 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2862 must add the entries now so that we get the correct size for
2863 the .dynamic section. The DT_DEBUG entry is filled in by the
2864 dynamic linker and used by the debugger. */
2865 #define add_dynamic_entry(TAG, VAL) \
2866 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2867
2868 if (bfd_link_executable (info))
2869 {
2870 if (!add_dynamic_entry (DT_DEBUG, 0))
2871 return FALSE;
2872 }
2873
2874 if (htab->elf.srelplt->size != 0)
2875 {
2876 if (!add_dynamic_entry (DT_PLTGOT, 0)
2877 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2878 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2879 || !add_dynamic_entry (DT_JMPREL, 0))
2880 return FALSE;
2881 }
2882
2883 if (!add_dynamic_entry (DT_RELA, 0)
2884 || !add_dynamic_entry (DT_RELASZ, 0)
2885 || !add_dynamic_entry (DT_RELAENT,
2886 SPARC_ELF_RELA_BYTES (htab)))
2887 return FALSE;
2888
2889 /* If any dynamic relocs apply to a read-only section,
2890 then we need a DT_TEXTREL entry. */
2891 if ((info->flags & DF_TEXTREL) == 0)
2892 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info);
2893
2894 if (info->flags & DF_TEXTREL)
2895 {
2896 if (!add_dynamic_entry (DT_TEXTREL, 0))
2897 return FALSE;
2898 }
2899
2900 if (ABI_64_P (output_bfd))
2901 {
2902 int reg;
2903 struct _bfd_sparc_elf_app_reg * app_regs;
2904 struct elf_strtab_hash *dynstr;
2905 struct elf_link_hash_table *eht = elf_hash_table (info);
2906
2907 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2908 entries if needed. */
2909 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2910 dynstr = eht->dynstr;
2911
2912 for (reg = 0; reg < 4; reg++)
2913 if (app_regs [reg].name != NULL)
2914 {
2915 struct elf_link_local_dynamic_entry *entry, *e;
2916
2917 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2918 return FALSE;
2919
2920 entry = (struct elf_link_local_dynamic_entry *)
2921 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2922 if (entry == NULL)
2923 return FALSE;
2924
2925 /* We cheat here a little bit: the symbol will not be local, so we
2926 put it at the end of the dynlocal linked list. We will fix it
2927 later on, as we have to fix other fields anyway. */
2928 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2929 entry->isym.st_size = 0;
2930 if (*app_regs [reg].name != '\0')
2931 entry->isym.st_name
2932 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2933 else
2934 entry->isym.st_name = 0;
2935 entry->isym.st_other = 0;
2936 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2937 STT_REGISTER);
2938 entry->isym.st_shndx = app_regs [reg].shndx;
2939 entry->isym.st_target_internal = 0;
2940 entry->next = NULL;
2941 entry->input_bfd = output_bfd;
2942 entry->input_indx = -1;
2943
2944 if (eht->dynlocal == NULL)
2945 eht->dynlocal = entry;
2946 else
2947 {
2948 for (e = eht->dynlocal; e->next; e = e->next)
2949 ;
2950 e->next = entry;
2951 }
2952 eht->dynsymcount++;
2953 }
2954 }
2955 if (htab->is_vxworks
2956 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2957 return FALSE;
2958 }
2959 #undef add_dynamic_entry
2960
2961 return TRUE;
2962 }
2963 \f
2964 bfd_boolean
2965 _bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2966 {
2967 if (!sec->used_by_bfd)
2968 {
2969 struct _bfd_sparc_elf_section_data *sdata;
2970 bfd_size_type amt = sizeof (*sdata);
2971
2972 sdata = bfd_zalloc (abfd, amt);
2973 if (sdata == NULL)
2974 return FALSE;
2975 sec->used_by_bfd = sdata;
2976 }
2977
2978 return _bfd_elf_new_section_hook (abfd, sec);
2979 }
2980
2981 bfd_boolean
2982 _bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2983 struct bfd_section *section,
2984 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2985 bfd_boolean *again)
2986 {
2987 if (bfd_link_relocatable (link_info))
2988 (*link_info->callbacks->einfo)
2989 (_("%P%F: --relax and -r may not be used together\n"));
2990
2991 *again = FALSE;
2992 sec_do_relax (section) = 1;
2993 return TRUE;
2994 }
2995 \f
2996 /* Return the base VMA address which should be subtracted from real addresses
2997 when resolving @dtpoff relocation.
2998 This is PT_TLS segment p_vaddr. */
2999
3000 static bfd_vma
3001 dtpoff_base (struct bfd_link_info *info)
3002 {
3003 /* If tls_sec is NULL, we should have signalled an error already. */
3004 if (elf_hash_table (info)->tls_sec == NULL)
3005 return 0;
3006 return elf_hash_table (info)->tls_sec->vma;
3007 }
3008
3009 /* Return the relocation value for @tpoff relocation
3010 if STT_TLS virtual address is ADDRESS. */
3011
3012 static bfd_vma
3013 tpoff (struct bfd_link_info *info, bfd_vma address)
3014 {
3015 struct elf_link_hash_table *htab = elf_hash_table (info);
3016 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
3017 bfd_vma static_tls_size;
3018
3019 /* If tls_sec is NULL, we should have signalled an error already. */
3020 if (htab->tls_sec == NULL)
3021 return 0;
3022
3023 /* Consider special static TLS alignment requirements. */
3024 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
3025 return address - static_tls_size - htab->tls_sec->vma;
3026 }
3027
3028 /* Return the relocation value for a %gdop relocation. */
3029
3030 static bfd_vma
3031 gdopoff (struct bfd_link_info *info, bfd_vma address)
3032 {
3033 struct elf_link_hash_table *htab = elf_hash_table (info);
3034 bfd_vma got_base;
3035
3036 got_base = (htab->hgot->root.u.def.value
3037 + htab->hgot->root.u.def.section->output_offset
3038 + htab->hgot->root.u.def.section->output_section->vma);
3039
3040 return address - got_base;
3041 }
3042
3043 /* Return whether H is local and its ADDRESS is within 4G of
3044 _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
3045 sethi, xor sequence. */
3046
3047 static bfd_boolean
3048 gdop_relative_offset_ok (struct bfd_link_info *info,
3049 struct elf_link_hash_entry *h,
3050 bfd_vma address ATTRIBUTE_UNUSED)
3051 {
3052 if (!SYMBOL_REFERENCES_LOCAL (info, h))
3053 return FALSE;
3054 /* If H is undefined, ADDRESS will be zero. We can't allow a
3055 relative offset to "zero" when producing PIEs or shared libs.
3056 Note that to get here with an undefined symbol it must also be
3057 hidden or internal visibility. */
3058 if (bfd_link_pic (info)
3059 && h != NULL
3060 && (h->root.type == bfd_link_hash_undefweak
3061 || h->root.type == bfd_link_hash_undefined))
3062 return FALSE;
3063 #ifdef BFD64
3064 return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
3065 #else
3066 return TRUE;
3067 #endif
3068 }
3069
3070 /* Relocate a SPARC ELF section. */
3071
3072 bfd_boolean
3073 _bfd_sparc_elf_relocate_section (bfd *output_bfd,
3074 struct bfd_link_info *info,
3075 bfd *input_bfd,
3076 asection *input_section,
3077 bfd_byte *contents,
3078 Elf_Internal_Rela *relocs,
3079 Elf_Internal_Sym *local_syms,
3080 asection **local_sections)
3081 {
3082 struct _bfd_sparc_elf_link_hash_table *htab;
3083 Elf_Internal_Shdr *symtab_hdr;
3084 struct elf_link_hash_entry **sym_hashes;
3085 bfd_vma *local_got_offsets;
3086 bfd_vma got_base;
3087 asection *sreloc;
3088 Elf_Internal_Rela *rel;
3089 Elf_Internal_Rela *relend;
3090 int num_relocs;
3091 bfd_boolean is_vxworks_tls;
3092
3093 htab = _bfd_sparc_elf_hash_table (info);
3094 BFD_ASSERT (htab != NULL);
3095 symtab_hdr = &elf_symtab_hdr (input_bfd);
3096 sym_hashes = elf_sym_hashes (input_bfd);
3097 local_got_offsets = elf_local_got_offsets (input_bfd);
3098
3099 if (elf_hash_table (info)->hgot == NULL)
3100 got_base = 0;
3101 else
3102 got_base = elf_hash_table (info)->hgot->root.u.def.value;
3103
3104 sreloc = elf_section_data (input_section)->sreloc;
3105 /* We have to handle relocations in vxworks .tls_vars sections
3106 specially, because the dynamic loader is 'weird'. */
3107 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3108 && !strcmp (input_section->output_section->name,
3109 ".tls_vars"));
3110
3111 rel = relocs;
3112 if (ABI_64_P (output_bfd))
3113 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
3114 else
3115 num_relocs = input_section->reloc_count;
3116 relend = relocs + num_relocs;
3117 for (; rel < relend; rel++)
3118 {
3119 int r_type, tls_type;
3120 reloc_howto_type *howto;
3121 unsigned long r_symndx;
3122 struct elf_link_hash_entry *h;
3123 struct _bfd_sparc_elf_link_hash_entry *eh;
3124 Elf_Internal_Sym *sym;
3125 asection *sec;
3126 bfd_vma relocation, off;
3127 bfd_reloc_status_type r;
3128 bfd_boolean is_plt = FALSE;
3129 bfd_boolean unresolved_reloc;
3130 bfd_boolean resolved_to_zero;
3131 bfd_boolean relative_reloc;
3132
3133 r_type = SPARC_ELF_R_TYPE (rel->r_info);
3134 if (r_type == R_SPARC_GNU_VTINHERIT
3135 || r_type == R_SPARC_GNU_VTENTRY)
3136 continue;
3137
3138 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
3139 {
3140 bfd_set_error (bfd_error_bad_value);
3141 return FALSE;
3142 }
3143 howto = _bfd_sparc_elf_howto_table + r_type;
3144
3145 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
3146 h = NULL;
3147 sym = NULL;
3148 sec = NULL;
3149 unresolved_reloc = FALSE;
3150 if (r_symndx < symtab_hdr->sh_info)
3151 {
3152 sym = local_syms + r_symndx;
3153 sec = local_sections[r_symndx];
3154 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
3155
3156 if (!bfd_link_relocatable (info)
3157 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
3158 {
3159 /* Relocate against local STT_GNU_IFUNC symbol. */
3160 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
3161 rel, FALSE);
3162 if (h == NULL)
3163 abort ();
3164
3165 /* Set STT_GNU_IFUNC symbol value. */
3166 h->root.u.def.value = sym->st_value;
3167 h->root.u.def.section = sec;
3168 }
3169 }
3170 else
3171 {
3172 bfd_boolean warned, ignored;
3173
3174 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3175 r_symndx, symtab_hdr, sym_hashes,
3176 h, sec, relocation,
3177 unresolved_reloc, warned, ignored);
3178 if (warned)
3179 {
3180 /* To avoid generating warning messages about truncated
3181 relocations, set the relocation's address to be the same as
3182 the start of this section. */
3183 if (input_section->output_section != NULL)
3184 relocation = input_section->output_section->vma;
3185 else
3186 relocation = 0;
3187 }
3188 }
3189
3190 if (sec != NULL && discarded_section (sec))
3191 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3192 rel, 1, relend, howto, 0, contents);
3193
3194 if (bfd_link_relocatable (info))
3195 continue;
3196
3197 if (h != NULL
3198 && h->type == STT_GNU_IFUNC
3199 && h->def_regular)
3200 {
3201 asection *plt_sec;
3202 const char *name;
3203
3204 if ((input_section->flags & SEC_ALLOC) == 0
3205 || h->plt.offset == (bfd_vma) -1)
3206 abort ();
3207
3208 plt_sec = htab->elf.splt;
3209 if (! plt_sec)
3210 plt_sec =htab->elf.iplt;
3211
3212 switch (r_type)
3213 {
3214 case R_SPARC_GOTDATA_OP:
3215 continue;
3216
3217 case R_SPARC_GOTDATA_OP_HIX22:
3218 case R_SPARC_GOTDATA_OP_LOX10:
3219 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3220 ? R_SPARC_GOT22
3221 : R_SPARC_GOT10);
3222 howto = _bfd_sparc_elf_howto_table + r_type;
3223 /* Fall through. */
3224
3225 case R_SPARC_GOT10:
3226 case R_SPARC_GOT13:
3227 case R_SPARC_GOT22:
3228 if (htab->elf.sgot == NULL)
3229 abort ();
3230 off = h->got.offset;
3231 if (off == (bfd_vma) -1)
3232 abort();
3233 relocation = htab->elf.sgot->output_offset + off - got_base;
3234 goto do_relocation;
3235
3236 case R_SPARC_WPLT30:
3237 case R_SPARC_WDISP30:
3238 relocation = (plt_sec->output_section->vma
3239 + plt_sec->output_offset + h->plt.offset);
3240 goto do_relocation;
3241
3242 case R_SPARC_32:
3243 case R_SPARC_64:
3244 if (bfd_link_pic (info) && h->non_got_ref)
3245 {
3246 Elf_Internal_Rela outrel;
3247 bfd_vma offset;
3248
3249 offset = _bfd_elf_section_offset (output_bfd, info,
3250 input_section,
3251 rel->r_offset);
3252 if (offset == (bfd_vma) -1
3253 || offset == (bfd_vma) -2)
3254 abort();
3255
3256 outrel.r_offset = (input_section->output_section->vma
3257 + input_section->output_offset
3258 + offset);
3259
3260 if (h->dynindx == -1
3261 || h->forced_local
3262 || bfd_link_executable (info))
3263 {
3264 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3265 0, R_SPARC_IRELATIVE);
3266 outrel.r_addend = relocation + rel->r_addend;
3267 }
3268 else
3269 {
3270 if (h->dynindx == -1)
3271 abort();
3272 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3273 outrel.r_addend = rel->r_addend;
3274 }
3275
3276 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3277 continue;
3278 }
3279
3280 relocation = (plt_sec->output_section->vma
3281 + plt_sec->output_offset + h->plt.offset);
3282 goto do_relocation;
3283
3284 case R_SPARC_HI22:
3285 case R_SPARC_LO10:
3286 /* We should only see such relocs in static links. */
3287 if (bfd_link_pic (info))
3288 abort();
3289 relocation = (plt_sec->output_section->vma
3290 + plt_sec->output_offset + h->plt.offset);
3291 goto do_relocation;
3292
3293 default:
3294 if (h->root.root.string)
3295 name = h->root.root.string;
3296 else
3297 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3298 NULL);
3299 _bfd_error_handler
3300 /* xgettext:c-format */
3301 (_("%B: relocation %s against STT_GNU_IFUNC "
3302 "symbol `%s' isn't handled by %s"), input_bfd,
3303 _bfd_sparc_elf_howto_table[r_type].name,
3304 name, __FUNCTION__);
3305 bfd_set_error (bfd_error_bad_value);
3306 return FALSE;
3307 }
3308 }
3309
3310 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
3311 resolved_to_zero = (eh != NULL
3312 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh));
3313
3314 switch (r_type)
3315 {
3316 case R_SPARC_GOTDATA_OP_HIX22:
3317 case R_SPARC_GOTDATA_OP_LOX10:
3318 if (gdop_relative_offset_ok (info, h, relocation))
3319 {
3320 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3321 ? R_SPARC_GOTDATA_HIX22
3322 : R_SPARC_GOTDATA_LOX10);
3323 howto = _bfd_sparc_elf_howto_table + r_type;
3324 }
3325 break;
3326
3327 case R_SPARC_GOTDATA_OP:
3328 if (gdop_relative_offset_ok (info, h, relocation))
3329 {
3330 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3331
3332 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3333 relocation = 0x80000000 | (insn & 0x3e07c01f);
3334 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3335 }
3336 continue;
3337 }
3338
3339 switch (r_type)
3340 {
3341 case R_SPARC_GOTDATA_HIX22:
3342 case R_SPARC_GOTDATA_LOX10:
3343 relocation = gdopoff (info, relocation);
3344 break;
3345
3346 case R_SPARC_GOTDATA_OP_HIX22:
3347 case R_SPARC_GOTDATA_OP_LOX10:
3348 case R_SPARC_GOT10:
3349 case R_SPARC_GOT13:
3350 case R_SPARC_GOT22:
3351 /* Relocation is to the entry for this symbol in the global
3352 offset table. */
3353 if (htab->elf.sgot == NULL)
3354 abort ();
3355
3356 relative_reloc = FALSE;
3357 if (h != NULL)
3358 {
3359 bfd_boolean dyn;
3360
3361 off = h->got.offset;
3362 BFD_ASSERT (off != (bfd_vma) -1);
3363 dyn = elf_hash_table (info)->dynamic_sections_created;
3364
3365 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3366 bfd_link_pic (info),
3367 h)
3368 || (bfd_link_pic (info)
3369 && SYMBOL_REFERENCES_LOCAL (info, h)))
3370 {
3371 /* This is actually a static link, or it is a
3372 -Bsymbolic link and the symbol is defined
3373 locally, or the symbol was forced to be local
3374 because of a version file. We must initialize
3375 this entry in the global offset table. Since the
3376 offset must always be a multiple of 8 for 64-bit
3377 and 4 for 32-bit, we use the least significant bit
3378 to record whether we have initialized it already.
3379
3380 When doing a dynamic link, we create a .rela.got
3381 relocation entry to initialize the value. This
3382 is done in the finish_dynamic_symbol routine. */
3383 if ((off & 1) != 0)
3384 off &= ~1;
3385 else
3386 {
3387 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3388 htab->elf.sgot->contents + off);
3389 h->got.offset |= 1;
3390
3391 if (h->dynindx == -1
3392 && !h->forced_local
3393 && h->root.type != bfd_link_hash_undefweak
3394 && bfd_link_pic (info))
3395 {
3396 /* If this symbol isn't dynamic in PIC
3397 generate R_SPARC_RELATIVE here. */
3398 relative_reloc = TRUE;
3399 }
3400 }
3401 }
3402 else
3403 unresolved_reloc = FALSE;
3404 }
3405 else
3406 {
3407 BFD_ASSERT (local_got_offsets != NULL
3408 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3409
3410 off = local_got_offsets[r_symndx];
3411
3412 /* The offset must always be a multiple of 8 on 64-bit and
3413 4 on 32-bit. We use the least significant bit to record
3414 whether we have already processed this entry. */
3415 if ((off & 1) != 0)
3416 off &= ~1;
3417 else
3418 {
3419 if (bfd_link_pic (info))
3420 {
3421 relative_reloc = TRUE;
3422 }
3423
3424 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3425 htab->elf.sgot->contents + off);
3426 local_got_offsets[r_symndx] |= 1;
3427 }
3428 }
3429
3430 if (relative_reloc)
3431 {
3432 asection *s;
3433 Elf_Internal_Rela outrel;
3434
3435 /* We need to generate a R_SPARC_RELATIVE reloc
3436 for the dynamic linker. */
3437 s = htab->elf.srelgot;
3438 BFD_ASSERT (s != NULL);
3439
3440 outrel.r_offset = (htab->elf.sgot->output_section->vma
3441 + htab->elf.sgot->output_offset
3442 + off);
3443 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3444 0, R_SPARC_RELATIVE);
3445 outrel.r_addend = relocation;
3446 relocation = 0;
3447 sparc_elf_append_rela (output_bfd, s, &outrel);
3448 }
3449
3450 relocation = htab->elf.sgot->output_offset + off - got_base;
3451 break;
3452
3453 case R_SPARC_PLT32:
3454 case R_SPARC_PLT64:
3455 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3456 {
3457 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3458 goto r_sparc_plt32;
3459 }
3460 /* Fall through. */
3461
3462 case R_SPARC_WPLT30:
3463 case R_SPARC_HIPLT22:
3464 case R_SPARC_LOPLT10:
3465 case R_SPARC_PCPLT32:
3466 case R_SPARC_PCPLT22:
3467 case R_SPARC_PCPLT10:
3468 r_sparc_wplt30:
3469 /* Relocation is to the entry for this symbol in the
3470 procedure linkage table. */
3471
3472 if (! ABI_64_P (output_bfd))
3473 {
3474 /* The Solaris native assembler will generate a WPLT30 reloc
3475 for a local symbol if you assemble a call from one
3476 section to another when using -K pic. We treat it as
3477 WDISP30. */
3478 if (h == NULL)
3479 break;
3480 }
3481 /* PR 7027: We need similar behaviour for 64-bit binaries. */
3482 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3483 break;
3484 else
3485 {
3486 BFD_ASSERT (h != NULL);
3487 }
3488
3489 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3490 {
3491 /* We didn't make a PLT entry for this symbol. This
3492 happens when statically linking PIC code, or when
3493 using -Bsymbolic. */
3494 break;
3495 }
3496
3497 relocation = (htab->elf.splt->output_section->vma
3498 + htab->elf.splt->output_offset
3499 + h->plt.offset);
3500 unresolved_reloc = FALSE;
3501 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3502 {
3503 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3504 is_plt = TRUE;
3505 goto r_sparc_plt32;
3506 }
3507 break;
3508
3509 case R_SPARC_PC10:
3510 case R_SPARC_PC22:
3511 case R_SPARC_PC_HH22:
3512 case R_SPARC_PC_HM10:
3513 case R_SPARC_PC_LM22:
3514 if (h != NULL
3515 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3516 break;
3517 /* Fall through. */
3518 case R_SPARC_DISP8:
3519 case R_SPARC_DISP16:
3520 case R_SPARC_DISP32:
3521 case R_SPARC_DISP64:
3522 case R_SPARC_WDISP30:
3523 case R_SPARC_WDISP22:
3524 case R_SPARC_WDISP19:
3525 case R_SPARC_WDISP16:
3526 case R_SPARC_WDISP10:
3527 case R_SPARC_8:
3528 case R_SPARC_16:
3529 case R_SPARC_32:
3530 case R_SPARC_HI22:
3531 case R_SPARC_22:
3532 case R_SPARC_13:
3533 case R_SPARC_LO10:
3534 case R_SPARC_UA16:
3535 case R_SPARC_UA32:
3536 case R_SPARC_10:
3537 case R_SPARC_11:
3538 case R_SPARC_64:
3539 case R_SPARC_OLO10:
3540 case R_SPARC_HH22:
3541 case R_SPARC_HM10:
3542 case R_SPARC_LM22:
3543 case R_SPARC_7:
3544 case R_SPARC_5:
3545 case R_SPARC_6:
3546 case R_SPARC_HIX22:
3547 case R_SPARC_LOX10:
3548 case R_SPARC_H44:
3549 case R_SPARC_M44:
3550 case R_SPARC_L44:
3551 case R_SPARC_H34:
3552 case R_SPARC_UA64:
3553 r_sparc_plt32:
3554 if ((input_section->flags & SEC_ALLOC) == 0
3555 || is_vxworks_tls)
3556 break;
3557
3558 /* Copy dynamic function pointer relocations. Don't generate
3559 dynamic relocations against resolved undefined weak symbols
3560 in PIE. */
3561 if ((bfd_link_pic (info)
3562 && (h == NULL
3563 || ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3564 && !resolved_to_zero)
3565 || h->root.type != bfd_link_hash_undefweak))
3566 && (! howto->pc_relative
3567 || !SYMBOL_CALLS_LOCAL (info, h)))
3568 || (!bfd_link_pic (info)
3569 && h != NULL
3570 && h->dynindx != -1
3571 && !h->non_got_ref
3572 && ((h->def_dynamic
3573 && !h->def_regular)
3574 || (h->root.type == bfd_link_hash_undefweak
3575 && !resolved_to_zero)
3576 || h->root.type == bfd_link_hash_undefined)))
3577 {
3578 Elf_Internal_Rela outrel;
3579 bfd_boolean skip, relocate = FALSE;
3580
3581 /* When generating a shared object, these relocations
3582 are copied into the output file to be resolved at run
3583 time. */
3584
3585 BFD_ASSERT (sreloc != NULL);
3586
3587 skip = FALSE;
3588
3589 outrel.r_offset =
3590 _bfd_elf_section_offset (output_bfd, info, input_section,
3591 rel->r_offset);
3592 if (outrel.r_offset == (bfd_vma) -1)
3593 skip = TRUE;
3594 else if (outrel.r_offset == (bfd_vma) -2)
3595 skip = TRUE, relocate = TRUE;
3596 outrel.r_offset += (input_section->output_section->vma
3597 + input_section->output_offset);
3598
3599 /* Optimize unaligned reloc usage now that we know where
3600 it finally resides. */
3601 switch (r_type)
3602 {
3603 case R_SPARC_16:
3604 if (outrel.r_offset & 1)
3605 r_type = R_SPARC_UA16;
3606 break;
3607 case R_SPARC_UA16:
3608 if (!(outrel.r_offset & 1))
3609 r_type = R_SPARC_16;
3610 break;
3611 case R_SPARC_32:
3612 if (outrel.r_offset & 3)
3613 r_type = R_SPARC_UA32;
3614 break;
3615 case R_SPARC_UA32:
3616 if (!(outrel.r_offset & 3))
3617 r_type = R_SPARC_32;
3618 break;
3619 case R_SPARC_64:
3620 if (outrel.r_offset & 7)
3621 r_type = R_SPARC_UA64;
3622 break;
3623 case R_SPARC_UA64:
3624 if (!(outrel.r_offset & 7))
3625 r_type = R_SPARC_64;
3626 break;
3627 case R_SPARC_DISP8:
3628 case R_SPARC_DISP16:
3629 case R_SPARC_DISP32:
3630 case R_SPARC_DISP64:
3631 /* If the symbol is not dynamic, we should not keep
3632 a dynamic relocation. But an .rela.* slot has been
3633 allocated for it, output R_SPARC_NONE.
3634 FIXME: Add code tracking needed dynamic relocs as
3635 e.g. i386 has. */
3636 if (h->dynindx == -1)
3637 skip = TRUE, relocate = TRUE;
3638 break;
3639 }
3640
3641 if (skip)
3642 memset (&outrel, 0, sizeof outrel);
3643 /* h->dynindx may be -1 if the symbol was marked to
3644 become local. */
3645 else if (h != NULL
3646 && h->dynindx != -1
3647 && (_bfd_sparc_elf_howto_table[r_type].pc_relative
3648 || !bfd_link_pic (info)
3649 || !SYMBOLIC_BIND (info, h)
3650 || !h->def_regular))
3651 {
3652 BFD_ASSERT (h->dynindx != -1);
3653 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3654 outrel.r_addend = rel->r_addend;
3655 }
3656 else
3657 {
3658 if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3659 || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
3660 {
3661 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3662 0, R_SPARC_RELATIVE);
3663 outrel.r_addend = relocation + rel->r_addend;
3664 }
3665 else
3666 {
3667 long indx;
3668
3669 outrel.r_addend = relocation + rel->r_addend;
3670
3671 if (is_plt)
3672 sec = htab->elf.splt;
3673
3674 if (bfd_is_abs_section (sec))
3675 indx = 0;
3676 else if (sec == NULL || sec->owner == NULL)
3677 {
3678 bfd_set_error (bfd_error_bad_value);
3679 return FALSE;
3680 }
3681 else
3682 {
3683 asection *osec;
3684
3685 /* We are turning this relocation into one
3686 against a section symbol. It would be
3687 proper to subtract the symbol's value,
3688 osec->vma, from the emitted reloc addend,
3689 but ld.so expects buggy relocs. */
3690 osec = sec->output_section;
3691 indx = elf_section_data (osec)->dynindx;
3692
3693 if (indx == 0)
3694 {
3695 osec = htab->elf.text_index_section;
3696 indx = elf_section_data (osec)->dynindx;
3697 }
3698
3699 /* FIXME: we really should be able to link non-pic
3700 shared libraries. */
3701 if (indx == 0)
3702 {
3703 BFD_FAIL ();
3704 _bfd_error_handler
3705 (_("%B: probably compiled without -fPIC?"),
3706 input_bfd);
3707 bfd_set_error (bfd_error_bad_value);
3708 return FALSE;
3709 }
3710 }
3711
3712 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3713 r_type);
3714 }
3715 }
3716
3717 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3718
3719 /* This reloc will be computed at runtime, so there's no
3720 need to do anything now. */
3721 if (! relocate)
3722 continue;
3723 }
3724 break;
3725
3726 case R_SPARC_TLS_GD_HI22:
3727 if (! ABI_64_P (input_bfd)
3728 && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
3729 {
3730 /* R_SPARC_REV32 used the same reloc number as
3731 R_SPARC_TLS_GD_HI22. */
3732 r_type = R_SPARC_REV32;
3733 break;
3734 }
3735 /* Fall through */
3736
3737 case R_SPARC_TLS_GD_LO10:
3738 case R_SPARC_TLS_IE_HI22:
3739 case R_SPARC_TLS_IE_LO10:
3740 r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
3741 tls_type = GOT_UNKNOWN;
3742 if (h == NULL && local_got_offsets)
3743 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3744 else if (h != NULL)
3745 {
3746 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3747 if (!bfd_link_pic (info)
3748 && h->dynindx == -1
3749 && tls_type == GOT_TLS_IE)
3750 switch (SPARC_ELF_R_TYPE (rel->r_info))
3751 {
3752 case R_SPARC_TLS_GD_HI22:
3753 case R_SPARC_TLS_IE_HI22:
3754 r_type = R_SPARC_TLS_LE_HIX22;
3755 break;
3756 default:
3757 r_type = R_SPARC_TLS_LE_LOX10;
3758 break;
3759 }
3760 }
3761 if (tls_type == GOT_TLS_IE)
3762 switch (r_type)
3763 {
3764 case R_SPARC_TLS_GD_HI22:
3765 r_type = R_SPARC_TLS_IE_HI22;
3766 break;
3767 case R_SPARC_TLS_GD_LO10:
3768 r_type = R_SPARC_TLS_IE_LO10;
3769 break;
3770 }
3771
3772 if (r_type == R_SPARC_TLS_LE_HIX22)
3773 {
3774 relocation = tpoff (info, relocation);
3775 break;
3776 }
3777 if (r_type == R_SPARC_TLS_LE_LOX10)
3778 {
3779 /* Change add into xor. */
3780 relocation = tpoff (info, relocation);
3781 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3782 contents + rel->r_offset)
3783 | 0x80182000), contents + rel->r_offset);
3784 break;
3785 }
3786
3787 if (h != NULL)
3788 {
3789 off = h->got.offset;
3790 h->got.offset |= 1;
3791 }
3792 else
3793 {
3794 BFD_ASSERT (local_got_offsets != NULL);
3795 off = local_got_offsets[r_symndx];
3796 local_got_offsets[r_symndx] |= 1;
3797 }
3798
3799 r_sparc_tlsldm:
3800 if (htab->elf.sgot == NULL)
3801 abort ();
3802
3803 if ((off & 1) != 0)
3804 off &= ~1;
3805 else
3806 {
3807 Elf_Internal_Rela outrel;
3808 int dr_type, indx;
3809
3810 if (htab->elf.srelgot == NULL)
3811 abort ();
3812
3813 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3814 htab->elf.sgot->contents + off);
3815 outrel.r_offset = (htab->elf.sgot->output_section->vma
3816 + htab->elf.sgot->output_offset + off);
3817 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3818 if (r_type == R_SPARC_TLS_IE_HI22
3819 || r_type == R_SPARC_TLS_IE_LO10)
3820 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3821 else
3822 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3823 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3824 outrel.r_addend = relocation - dtpoff_base (info);
3825 else
3826 outrel.r_addend = 0;
3827 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
3828 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3829
3830 if (r_type == R_SPARC_TLS_GD_HI22
3831 || r_type == R_SPARC_TLS_GD_LO10)
3832 {
3833 if (indx == 0)
3834 {
3835 BFD_ASSERT (! unresolved_reloc);
3836 SPARC_ELF_PUT_WORD (htab, output_bfd,
3837 relocation - dtpoff_base (info),
3838 (htab->elf.sgot->contents + off
3839 + SPARC_ELF_WORD_BYTES (htab)));
3840 }
3841 else
3842 {
3843 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3844 (htab->elf.sgot->contents + off
3845 + SPARC_ELF_WORD_BYTES (htab)));
3846 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3847 SPARC_ELF_DTPOFF_RELOC (htab));
3848 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
3849 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
3850 &outrel);
3851 }
3852 }
3853 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3854 {
3855 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3856 (htab->elf.sgot->contents + off
3857 + SPARC_ELF_WORD_BYTES (htab)));
3858 }
3859 }
3860
3861 if (off >= (bfd_vma) -2)
3862 abort ();
3863
3864 relocation = htab->elf.sgot->output_offset + off - got_base;
3865 unresolved_reloc = FALSE;
3866 howto = _bfd_sparc_elf_howto_table + r_type;
3867 break;
3868
3869 case R_SPARC_TLS_LDM_HI22:
3870 case R_SPARC_TLS_LDM_LO10:
3871 if (! bfd_link_pic (info))
3872 {
3873 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3874 continue;
3875 }
3876 off = htab->tls_ldm_got.offset;
3877 htab->tls_ldm_got.offset |= 1;
3878 goto r_sparc_tlsldm;
3879
3880 case R_SPARC_TLS_LDO_HIX22:
3881 case R_SPARC_TLS_LDO_LOX10:
3882 if (bfd_link_pic (info))
3883 {
3884 relocation -= dtpoff_base (info);
3885 break;
3886 }
3887
3888 r_type = (r_type == R_SPARC_TLS_LDO_HIX22
3889 ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
3890 /* Fall through. */
3891
3892 case R_SPARC_TLS_LE_HIX22:
3893 case R_SPARC_TLS_LE_LOX10:
3894 if (bfd_link_pic (info))
3895 {
3896 Elf_Internal_Rela outrel;
3897 bfd_boolean skip;
3898
3899 BFD_ASSERT (sreloc != NULL);
3900 skip = FALSE;
3901 outrel.r_offset =
3902 _bfd_elf_section_offset (output_bfd, info, input_section,
3903 rel->r_offset);
3904 if (outrel.r_offset == (bfd_vma) -1)
3905 skip = TRUE;
3906 else if (outrel.r_offset == (bfd_vma) -2)
3907 skip = TRUE;
3908 outrel.r_offset += (input_section->output_section->vma
3909 + input_section->output_offset);
3910 if (skip)
3911 memset (&outrel, 0, sizeof outrel);
3912 else
3913 {
3914 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3915 outrel.r_addend = relocation - dtpoff_base (info)
3916 + rel->r_addend;
3917 }
3918
3919 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3920 continue;
3921 }
3922 relocation = tpoff (info, relocation);
3923 break;
3924
3925 case R_SPARC_TLS_LDM_CALL:
3926 if (! bfd_link_pic (info))
3927 {
3928 /* mov %g0, %o0 */
3929 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3930 continue;
3931 }
3932 /* Fall through */
3933
3934 case R_SPARC_TLS_GD_CALL:
3935 tls_type = GOT_UNKNOWN;
3936 if (h == NULL && local_got_offsets)
3937 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3938 else if (h != NULL)
3939 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3940 if (! bfd_link_pic (info)
3941 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3942 {
3943 Elf_Internal_Rela *rel2;
3944 bfd_vma insn;
3945
3946 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
3947 {
3948 /* GD -> LE */
3949 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3950 continue;
3951 }
3952
3953 /* GD -> IE */
3954 if (rel + 1 < relend
3955 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3956 && rel[1].r_offset == rel->r_offset + 4
3957 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3958 && (((insn = bfd_get_32 (input_bfd,
3959 contents + rel[1].r_offset))
3960 >> 25) & 0x1f) == 8)
3961 {
3962 /* We have
3963 call __tls_get_addr, %tgd_call(foo)
3964 add %reg1, %reg2, %o0, %tgd_add(foo)
3965 and change it into IE:
3966 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3967 add %g7, %o0, %o0, %tie_add(foo).
3968 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3969 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3970 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3971 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3972 contents + rel->r_offset);
3973 bfd_put_32 (output_bfd, 0x9001c008,
3974 contents + rel->r_offset + 4);
3975 rel++;
3976 continue;
3977 }
3978
3979 /* We cannot just overwrite the delay slot instruction,
3980 as it might be what puts the %o0 argument to
3981 __tls_get_addr into place. So we have to transpose
3982 the delay slot with the add we patch in. */
3983 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3984 bfd_put_32 (output_bfd, insn,
3985 contents + rel->r_offset);
3986 bfd_put_32 (output_bfd, 0x9001c008,
3987 contents + rel->r_offset + 4);
3988
3989 rel2 = rel;
3990 while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3991 rel->r_offset + 4))
3992 != NULL)
3993 {
3994 /* If the instruction we moved has a relocation attached to
3995 it, adjust the offset so that it will apply to the correct
3996 instruction. */
3997 rel2->r_offset -= 4;
3998 }
3999 continue;
4000 }
4001
4002 h = (struct elf_link_hash_entry *)
4003 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
4004 FALSE, TRUE);
4005 BFD_ASSERT (h != NULL);
4006 r_type = R_SPARC_WPLT30;
4007 howto = _bfd_sparc_elf_howto_table + r_type;
4008 goto r_sparc_wplt30;
4009
4010 case R_SPARC_TLS_GD_ADD:
4011 tls_type = GOT_UNKNOWN;
4012 if (h == NULL && local_got_offsets)
4013 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
4014 else if (h != NULL)
4015 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
4016 if (! bfd_link_pic (info) || tls_type == GOT_TLS_IE)
4017 {
4018 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
4019 changed into IE:
4020 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
4021 or LE:
4022 add %g7, %reg2, %reg3. */
4023 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
4024 if ((h != NULL && h->dynindx != -1) || bfd_link_pic (info))
4025 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
4026 else
4027 relocation = (insn & ~0x7c000) | 0x1c000;
4028 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
4029 }
4030 continue;
4031
4032 case R_SPARC_TLS_LDM_ADD:
4033 if (! bfd_link_pic (info))
4034 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
4035 continue;
4036
4037 case R_SPARC_TLS_LDO_ADD:
4038 if (! bfd_link_pic (info))
4039 {
4040 /* Change rs1 into %g7. */
4041 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
4042 insn = (insn & ~0x7c000) | 0x1c000;
4043 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
4044 }
4045 continue;
4046
4047 case R_SPARC_TLS_IE_LD:
4048 case R_SPARC_TLS_IE_LDX:
4049 if (! bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
4050 {
4051 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
4052 int rs2 = insn & 0x1f;
4053 int rd = (insn >> 25) & 0x1f;
4054
4055 if (rs2 == rd)
4056 relocation = SPARC_NOP;
4057 else
4058 relocation = 0x80100000 | (insn & 0x3e00001f);
4059 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
4060 }
4061 continue;
4062
4063 case R_SPARC_TLS_IE_ADD:
4064 /* Totally useless relocation. */
4065 continue;
4066
4067 case R_SPARC_TLS_DTPOFF32:
4068 case R_SPARC_TLS_DTPOFF64:
4069 relocation -= dtpoff_base (info);
4070 break;
4071
4072 default:
4073 break;
4074 }
4075
4076 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
4077 because such sections are not SEC_ALLOC and thus ld.so will
4078 not process them. */
4079 if (unresolved_reloc
4080 && !((input_section->flags & SEC_DEBUGGING) != 0
4081 && h->def_dynamic)
4082 && _bfd_elf_section_offset (output_bfd, info, input_section,
4083 rel->r_offset) != (bfd_vma) -1)
4084 _bfd_error_handler
4085 /* xgettext:c-format */
4086 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
4087 input_bfd,
4088 input_section,
4089 rel->r_offset,
4090 howto->name,
4091 h->root.root.string);
4092
4093 r = bfd_reloc_continue;
4094 if (r_type == R_SPARC_OLO10)
4095 {
4096 bfd_vma x;
4097
4098 if (! ABI_64_P (output_bfd))
4099 abort ();
4100
4101 relocation += rel->r_addend;
4102 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
4103
4104 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4105 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
4106 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4107
4108 r = bfd_check_overflow (howto->complain_on_overflow,
4109 howto->bitsize, howto->rightshift,
4110 bfd_arch_bits_per_address (input_bfd),
4111 relocation);
4112 }
4113 else if (r_type == R_SPARC_WDISP16)
4114 {
4115 bfd_vma x;
4116
4117 relocation += rel->r_addend;
4118 relocation -= (input_section->output_section->vma
4119 + input_section->output_offset);
4120 relocation -= rel->r_offset;
4121
4122 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4123 x |= ((((relocation >> 2) & 0xc000) << 6)
4124 | ((relocation >> 2) & 0x3fff));
4125 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4126
4127 r = bfd_check_overflow (howto->complain_on_overflow,
4128 howto->bitsize, howto->rightshift,
4129 bfd_arch_bits_per_address (input_bfd),
4130 relocation);
4131 }
4132 else if (r_type == R_SPARC_WDISP10)
4133 {
4134 bfd_vma x;
4135
4136 relocation += rel->r_addend;
4137 relocation -= (input_section->output_section->vma
4138 + input_section->output_offset);
4139 relocation -= rel->r_offset;
4140
4141 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4142 x |= ((((relocation >> 2) & 0x300) << 11)
4143 | (((relocation >> 2) & 0xff) << 5));
4144 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4145
4146 r = bfd_check_overflow (howto->complain_on_overflow,
4147 howto->bitsize, howto->rightshift,
4148 bfd_arch_bits_per_address (input_bfd),
4149 relocation);
4150 }
4151 else if (r_type == R_SPARC_REV32)
4152 {
4153 bfd_vma x;
4154
4155 relocation = relocation + rel->r_addend;
4156
4157 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4158 x = x + relocation;
4159 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
4160 r = bfd_reloc_ok;
4161 }
4162 else if (r_type == R_SPARC_TLS_LDO_HIX22
4163 || r_type == R_SPARC_TLS_LE_HIX22)
4164 {
4165 bfd_vma x;
4166
4167 relocation += rel->r_addend;
4168 if (r_type == R_SPARC_TLS_LE_HIX22)
4169 relocation ^= MINUS_ONE;
4170
4171 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4172 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4173 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4174 r = bfd_reloc_ok;
4175 }
4176 else if (r_type == R_SPARC_TLS_LDO_LOX10
4177 || r_type == R_SPARC_TLS_LE_LOX10)
4178 {
4179 bfd_vma x;
4180
4181 relocation += rel->r_addend;
4182 relocation &= 0x3ff;
4183 if (r_type == R_SPARC_TLS_LE_LOX10)
4184 relocation |= 0x1c00;
4185
4186 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4187 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4188 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4189
4190 r = bfd_reloc_ok;
4191 }
4192 else if (r_type == R_SPARC_HIX22
4193 || r_type == R_SPARC_GOTDATA_HIX22
4194 || r_type == R_SPARC_GOTDATA_OP_HIX22)
4195 {
4196 bfd_vma x;
4197
4198 relocation += rel->r_addend;
4199 if (r_type == R_SPARC_HIX22
4200 || (bfd_signed_vma) relocation < 0)
4201 relocation = relocation ^ MINUS_ONE;
4202
4203 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4204 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4205 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4206
4207 r = bfd_check_overflow (howto->complain_on_overflow,
4208 howto->bitsize, howto->rightshift,
4209 bfd_arch_bits_per_address (input_bfd),
4210 relocation);
4211 }
4212 else if (r_type == R_SPARC_LOX10
4213 || r_type == R_SPARC_GOTDATA_LOX10
4214 || r_type == R_SPARC_GOTDATA_OP_LOX10)
4215 {
4216 bfd_vma x;
4217
4218 relocation += rel->r_addend;
4219 if (r_type == R_SPARC_LOX10
4220 || (bfd_signed_vma) relocation < 0)
4221 relocation = (relocation & 0x3ff) | 0x1c00;
4222 else
4223 relocation = (relocation & 0x3ff);
4224
4225 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4226 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4227 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4228
4229 r = bfd_reloc_ok;
4230 }
4231 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
4232 && sec_do_relax (input_section)
4233 && rel->r_offset + 4 < input_section->size)
4234 {
4235 #define G0 0
4236 #define O7 15
4237 #define XCC (2 << 20)
4238 #define COND(x) (((x)&0xf)<<25)
4239 #define CONDA COND(0x8)
4240 #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
4241 #define INSN_BA (F2(0,2) | CONDA)
4242 #define INSN_OR F3(2, 0x2, 0)
4243 #define INSN_NOP F2(0,4)
4244
4245 bfd_vma x, y;
4246
4247 /* If the instruction is a call with either:
4248 restore
4249 arithmetic instruction with rd == %o7
4250 where rs1 != %o7 and rs2 if it is register != %o7
4251 then we can optimize if the call destination is near
4252 by changing the call into a branch always. */
4253 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4254 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
4255 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
4256 {
4257 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
4258 || ((y & OP3(0x28)) == 0 /* arithmetic */
4259 && (y & RD(~0)) == RD(O7)))
4260 && (y & RS1(~0)) != RS1(O7)
4261 && ((y & F3I(~0))
4262 || (y & RS2(~0)) != RS2(O7)))
4263 {
4264 bfd_vma reloc;
4265
4266 reloc = relocation + rel->r_addend - rel->r_offset;
4267 reloc -= (input_section->output_section->vma
4268 + input_section->output_offset);
4269
4270 /* Ensure the branch fits into simm22. */
4271 if ((reloc & 3) == 0
4272 && ((reloc & ~(bfd_vma)0x7fffff) == 0
4273 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4274 {
4275 reloc >>= 2;
4276
4277 /* Check whether it fits into simm19. */
4278 if (((reloc & 0x3c0000) == 0
4279 || (reloc & 0x3c0000) == 0x3c0000)
4280 && (ABI_64_P (output_bfd)
4281 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4282 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4283 else
4284 x = INSN_BA | (reloc & 0x3fffff); /* ba */
4285 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4286 r = bfd_reloc_ok;
4287 if (rel->r_offset >= 4
4288 && (y & (0xffffffff ^ RS1(~0)))
4289 == (INSN_OR | RD(O7) | RS2(G0)))
4290 {
4291 bfd_vma z;
4292 unsigned int reg;
4293
4294 z = bfd_get_32 (input_bfd,
4295 contents + rel->r_offset - 4);
4296 if ((z & (0xffffffff ^ RD(~0)))
4297 != (INSN_OR | RS1(O7) | RS2(G0)))
4298 continue;
4299
4300 /* The sequence was
4301 or %o7, %g0, %rN
4302 call foo
4303 or %rN, %g0, %o7
4304
4305 If call foo was replaced with ba, replace
4306 or %rN, %g0, %o7 with nop. */
4307
4308 reg = (y & RS1(~0)) >> 14;
4309 if (reg != ((z & RD(~0)) >> 25)
4310 || reg == G0 || reg == O7)
4311 continue;
4312
4313 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4314 contents + rel->r_offset + 4);
4315 }
4316
4317 }
4318 }
4319 }
4320 }
4321
4322 if (r == bfd_reloc_continue)
4323 {
4324 do_relocation:
4325 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4326 contents, rel->r_offset,
4327 relocation, rel->r_addend);
4328 }
4329 if (r != bfd_reloc_ok)
4330 {
4331 switch (r)
4332 {
4333 default:
4334 case bfd_reloc_outofrange:
4335 abort ();
4336 case bfd_reloc_overflow:
4337 {
4338 const char *name;
4339
4340 /* The Solaris native linker silently disregards overflows.
4341 We don't, but this breaks stabs debugging info, whose
4342 relocations are only 32-bits wide. Ignore overflows in
4343 this case and also for discarded entries. */
4344 if ((r_type == R_SPARC_32
4345 || r_type == R_SPARC_UA32
4346 || r_type == R_SPARC_DISP32)
4347 && (((input_section->flags & SEC_DEBUGGING) != 0
4348 && strcmp (bfd_section_name (input_bfd,
4349 input_section),
4350 ".stab") == 0)
4351 || _bfd_elf_section_offset (output_bfd, info,
4352 input_section,
4353 rel->r_offset)
4354 == (bfd_vma)-1))
4355 break;
4356
4357 if (h != NULL)
4358 {
4359 /* Assume this is a call protected by other code that
4360 detect the symbol is undefined. If this is the case,
4361 we can safely ignore the overflow. If not, the
4362 program is hosed anyway, and a little warning isn't
4363 going to help. */
4364 if (h->root.type == bfd_link_hash_undefweak
4365 && howto->pc_relative)
4366 break;
4367
4368 name = NULL;
4369 }
4370 else
4371 {
4372 name = bfd_elf_string_from_elf_section (input_bfd,
4373 symtab_hdr->sh_link,
4374 sym->st_name);
4375 if (name == NULL)
4376 return FALSE;
4377 if (*name == '\0')
4378 name = bfd_section_name (input_bfd, sec);
4379 }
4380 (*info->callbacks->reloc_overflow)
4381 (info, (h ? &h->root : NULL), name, howto->name,
4382 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4383 }
4384 break;
4385 }
4386 }
4387 }
4388
4389 return TRUE;
4390 }
4391
4392 /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4393 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4394 is the offset of the associated .got.plt entry from
4395 _GLOBAL_OFFSET_TABLE_. */
4396
4397 static void
4398 sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4399 bfd_vma plt_offset, bfd_vma plt_index,
4400 bfd_vma got_offset)
4401 {
4402 bfd_vma got_base;
4403 const bfd_vma *plt_entry;
4404 struct _bfd_sparc_elf_link_hash_table *htab;
4405 bfd_byte *loc;
4406 Elf_Internal_Rela rela;
4407
4408 htab = _bfd_sparc_elf_hash_table (info);
4409 BFD_ASSERT (htab != NULL);
4410
4411 if (bfd_link_pic (info))
4412 {
4413 plt_entry = sparc_vxworks_shared_plt_entry;
4414 got_base = 0;
4415 }
4416 else
4417 {
4418 plt_entry = sparc_vxworks_exec_plt_entry;
4419 got_base = (htab->elf.hgot->root.u.def.value
4420 + htab->elf.hgot->root.u.def.section->output_offset
4421 + htab->elf.hgot->root.u.def.section->output_section->vma);
4422 }
4423
4424 /* Fill in the entry in the procedure linkage table. */
4425 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
4426 htab->elf.splt->contents + plt_offset);
4427 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
4428 htab->elf.splt->contents + plt_offset + 4);
4429 bfd_put_32 (output_bfd, plt_entry[2],
4430 htab->elf.splt->contents + plt_offset + 8);
4431 bfd_put_32 (output_bfd, plt_entry[3],
4432 htab->elf.splt->contents + plt_offset + 12);
4433 bfd_put_32 (output_bfd, plt_entry[4],
4434 htab->elf.splt->contents + plt_offset + 16);
4435 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
4436 htab->elf.splt->contents + plt_offset + 20);
4437 /* PC-relative displacement for a branch to the start of
4438 the PLT section. */
4439 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4440 & 0x003fffff),
4441 htab->elf.splt->contents + plt_offset + 24);
4442 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
4443 htab->elf.splt->contents + plt_offset + 28);
4444
4445 /* Fill in the .got.plt entry, pointing initially at the
4446 second half of the PLT entry. */
4447 BFD_ASSERT (htab->elf.sgotplt != NULL);
4448 bfd_put_32 (output_bfd,
4449 htab->elf.splt->output_section->vma
4450 + htab->elf.splt->output_offset
4451 + plt_offset + 20,
4452 htab->elf.sgotplt->contents + got_offset);
4453
4454 /* Add relocations to .rela.plt.unloaded. */
4455 if (!bfd_link_pic (info))
4456 {
4457 loc = (htab->srelplt2->contents
4458 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4459
4460 /* Relocate the initial sethi. */
4461 rela.r_offset = (htab->elf.splt->output_section->vma
4462 + htab->elf.splt->output_offset
4463 + plt_offset);
4464 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4465 rela.r_addend = got_offset;
4466 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4467 loc += sizeof (Elf32_External_Rela);
4468
4469 /* Likewise the following or. */
4470 rela.r_offset += 4;
4471 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4472 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4473 loc += sizeof (Elf32_External_Rela);
4474
4475 /* Relocate the .got.plt entry. */
4476 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4477 + htab->elf.sgotplt->output_offset
4478 + got_offset);
4479 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4480 rela.r_addend = plt_offset + 20;
4481 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4482 }
4483 }
4484
4485 /* Finish up dynamic symbol handling. We set the contents of various
4486 dynamic sections here. */
4487
4488 bfd_boolean
4489 _bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4490 struct bfd_link_info *info,
4491 struct elf_link_hash_entry *h,
4492 Elf_Internal_Sym *sym)
4493 {
4494 struct _bfd_sparc_elf_link_hash_table *htab;
4495 const struct elf_backend_data *bed;
4496 struct _bfd_sparc_elf_link_hash_entry *eh;
4497 bfd_boolean local_undefweak;
4498
4499 htab = _bfd_sparc_elf_hash_table (info);
4500 BFD_ASSERT (htab != NULL);
4501 bed = get_elf_backend_data (output_bfd);
4502
4503 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4504
4505 /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4506 resolved undefined weak symbols in executable so that their
4507 references have value 0 at run-time. */
4508 local_undefweak = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
4509
4510 if (h->plt.offset != (bfd_vma) -1)
4511 {
4512 asection *splt;
4513 asection *srela;
4514 Elf_Internal_Rela rela;
4515 bfd_byte *loc;
4516 bfd_vma r_offset, got_offset;
4517 int rela_index;
4518
4519 /* When building a static executable, use .iplt and
4520 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4521 if (htab->elf.splt != NULL)
4522 {
4523 splt = htab->elf.splt;
4524 srela = htab->elf.srelplt;
4525 }
4526 else
4527 {
4528 splt = htab->elf.iplt;
4529 srela = htab->elf.irelplt;
4530 }
4531
4532 if (splt == NULL || srela == NULL)
4533 abort ();
4534
4535 /* Fill in the entry in the .rela.plt section. */
4536 if (htab->is_vxworks)
4537 {
4538 /* Work out the index of this PLT entry. */
4539 rela_index = ((h->plt.offset - htab->plt_header_size)
4540 / htab->plt_entry_size);
4541
4542 /* Calculate the offset of the associated .got.plt entry.
4543 The first three entries are reserved. */
4544 got_offset = (rela_index + 3) * 4;
4545
4546 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4547 rela_index, got_offset);
4548
4549
4550 /* On VxWorks, the relocation points to the .got.plt entry,
4551 not the .plt entry. */
4552 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4553 + htab->elf.sgotplt->output_offset
4554 + got_offset);
4555 rela.r_addend = 0;
4556 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4557 R_SPARC_JMP_SLOT);
4558 }
4559 else
4560 {
4561 bfd_boolean ifunc = FALSE;
4562
4563 /* Fill in the entry in the procedure linkage table. */
4564 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4565 h->plt.offset, splt->size,
4566 &r_offset);
4567
4568 if (h == NULL
4569 || h->dynindx == -1
4570 || ((bfd_link_executable (info)
4571 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4572 && h->def_regular
4573 && h->type == STT_GNU_IFUNC))
4574 {
4575 ifunc = TRUE;
4576 BFD_ASSERT (h == NULL
4577 || (h->type == STT_GNU_IFUNC
4578 && h->def_regular
4579 && (h->root.type == bfd_link_hash_defined
4580 || h->root.type == bfd_link_hash_defweak)));
4581 }
4582
4583 rela.r_offset = r_offset
4584 + (splt->output_section->vma + splt->output_offset);
4585 if (ABI_64_P (output_bfd)
4586 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
4587 {
4588 if (ifunc)
4589 {
4590 rela.r_addend = (h->root.u.def.section->output_section->vma
4591 + h->root.u.def.section->output_offset
4592 + h->root.u.def.value);
4593 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4594 R_SPARC_IRELATIVE);
4595 }
4596 else
4597 {
4598 rela.r_addend = (-(h->plt.offset + 4)
4599 - splt->output_section->vma
4600 - splt->output_offset);
4601 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4602 R_SPARC_JMP_SLOT);
4603 }
4604 }
4605 else
4606 {
4607 if (ifunc)
4608 {
4609 rela.r_addend = (h->root.u.def.section->output_section->vma
4610 + h->root.u.def.section->output_offset
4611 + h->root.u.def.value);
4612 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4613 R_SPARC_JMP_IREL);
4614 }
4615 else
4616 {
4617 rela.r_addend = 0;
4618 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4619 R_SPARC_JMP_SLOT);
4620 }
4621 }
4622 }
4623
4624 /* Adjust for the first 4 reserved elements in the .plt section
4625 when setting the offset in the .rela.plt section.
4626 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4627 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4628
4629 loc = srela->contents;
4630 loc += rela_index * bed->s->sizeof_rela;
4631 bed->s->swap_reloca_out (output_bfd, &rela, loc);
4632
4633 if (!local_undefweak
4634 && !h->def_regular)
4635 {
4636 /* Mark the symbol as undefined, rather than as defined in
4637 the .plt section. Leave the value alone. */
4638 sym->st_shndx = SHN_UNDEF;
4639 /* If the symbol is weak, we do need to clear the value.
4640 Otherwise, the PLT entry would provide a definition for
4641 the symbol even if the symbol wasn't defined anywhere,
4642 and so the symbol would never be NULL. */
4643 if (!h->ref_regular_nonweak)
4644 sym->st_value = 0;
4645 }
4646 }
4647
4648 /* Don't generate dynamic GOT relocation against undefined weak
4649 symbol in executable. */
4650 if (h->got.offset != (bfd_vma) -1
4651 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4652 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
4653 && !local_undefweak)
4654 {
4655 asection *sgot;
4656 asection *srela;
4657 Elf_Internal_Rela rela;
4658
4659 /* This symbol has an entry in the GOT. Set it up. */
4660
4661 sgot = htab->elf.sgot;
4662 srela = htab->elf.srelgot;
4663 BFD_ASSERT (sgot != NULL && srela != NULL);
4664
4665 rela.r_offset = (sgot->output_section->vma
4666 + sgot->output_offset
4667 + (h->got.offset &~ (bfd_vma) 1));
4668
4669 /* If this is a -Bsymbolic link, and the symbol is defined
4670 locally, we just want to emit a RELATIVE reloc. Likewise if
4671 the symbol was forced to be local because of a version file.
4672 The entry in the global offset table will already have been
4673 initialized in the relocate_section function. */
4674 if (! bfd_link_pic (info)
4675 && h->type == STT_GNU_IFUNC
4676 && h->def_regular)
4677 {
4678 asection *plt;
4679
4680 /* We load the GOT entry with the PLT entry. */
4681 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4682 SPARC_ELF_PUT_WORD (htab, output_bfd,
4683 (plt->output_section->vma
4684 + plt->output_offset + h->plt.offset),
4685 htab->elf.sgot->contents
4686 + (h->got.offset & ~(bfd_vma) 1));
4687 return TRUE;
4688 }
4689 else if (bfd_link_pic (info)
4690 && SYMBOL_REFERENCES_LOCAL (info, h))
4691 {
4692 asection *sec = h->root.u.def.section;
4693 if (h->type == STT_GNU_IFUNC)
4694 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4695 else
4696 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
4697 rela.r_addend = (h->root.u.def.value
4698 + sec->output_section->vma
4699 + sec->output_offset);
4700 }
4701 else
4702 {
4703 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4704 rela.r_addend = 0;
4705 }
4706
4707 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4708 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4709 sparc_elf_append_rela (output_bfd, srela, &rela);
4710 }
4711
4712 if (h->needs_copy)
4713 {
4714 asection *s;
4715 Elf_Internal_Rela rela;
4716
4717 /* This symbols needs a copy reloc. Set it up. */
4718 BFD_ASSERT (h->dynindx != -1);
4719
4720 rela.r_offset = (h->root.u.def.value
4721 + h->root.u.def.section->output_section->vma
4722 + h->root.u.def.section->output_offset);
4723 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4724 rela.r_addend = 0;
4725 if (h->root.u.def.section == htab->elf.sdynrelro)
4726 s = htab->elf.sreldynrelro;
4727 else
4728 s = htab->elf.srelbss;
4729 sparc_elf_append_rela (output_bfd, s, &rela);
4730 }
4731
4732 /* Mark some specially defined symbols as absolute. On VxWorks,
4733 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4734 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
4735 if (sym != NULL
4736 && (h == htab->elf.hdynamic
4737 || (!htab->is_vxworks
4738 && (h == htab->elf.hgot || h == htab->elf.hplt))))
4739 sym->st_shndx = SHN_ABS;
4740
4741 return TRUE;
4742 }
4743
4744 /* Finish up the dynamic sections. */
4745
4746 static bfd_boolean
4747 sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4748 bfd *dynobj, asection *sdyn,
4749 asection *splt ATTRIBUTE_UNUSED)
4750 {
4751 struct _bfd_sparc_elf_link_hash_table *htab;
4752 const struct elf_backend_data *bed;
4753 bfd_byte *dyncon, *dynconend;
4754 size_t dynsize;
4755 int stt_regidx = -1;
4756 bfd_boolean abi_64_p;
4757
4758 htab = _bfd_sparc_elf_hash_table (info);
4759 BFD_ASSERT (htab != NULL);
4760 bed = get_elf_backend_data (output_bfd);
4761 dynsize = bed->s->sizeof_dyn;
4762 dynconend = sdyn->contents + sdyn->size;
4763 abi_64_p = ABI_64_P (output_bfd);
4764 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4765 {
4766 Elf_Internal_Dyn dyn;
4767 bfd_boolean size;
4768
4769 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4770
4771 if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
4772 {
4773 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4774 not to the start of the PLT. */
4775 if (htab->elf.sgotplt)
4776 {
4777 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4778 + htab->elf.sgotplt->output_offset);
4779 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4780 }
4781 }
4782 else if (htab->is_vxworks
4783 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4784 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4785 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4786 {
4787 if (stt_regidx == -1)
4788 {
4789 stt_regidx =
4790 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4791 if (stt_regidx == -1)
4792 return FALSE;
4793 }
4794 dyn.d_un.d_val = stt_regidx++;
4795 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4796 }
4797 else
4798 {
4799 asection *s;
4800
4801 switch (dyn.d_tag)
4802 {
4803 case DT_PLTGOT:
4804 s = htab->elf.splt;
4805 size = FALSE;
4806 break;
4807 case DT_PLTRELSZ:
4808 s = htab->elf.srelplt;
4809 size = TRUE;
4810 break;
4811 case DT_JMPREL:
4812 s = htab->elf.srelplt;
4813 size = FALSE;
4814 break;
4815 default:
4816 continue;
4817 }
4818
4819 if (s == NULL)
4820 dyn.d_un.d_val = 0;
4821 else
4822 {
4823 if (!size)
4824 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4825 else
4826 dyn.d_un.d_val = s->size;
4827 }
4828 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4829 }
4830 }
4831 return TRUE;
4832 }
4833
4834 /* Install the first PLT entry in a VxWorks executable and make sure that
4835 .rela.plt.unloaded relocations have the correct symbol indexes. */
4836
4837 static void
4838 sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4839 {
4840 struct _bfd_sparc_elf_link_hash_table *htab;
4841 Elf_Internal_Rela rela;
4842 bfd_vma got_base;
4843 bfd_byte *loc;
4844
4845 htab = _bfd_sparc_elf_hash_table (info);
4846 BFD_ASSERT (htab != NULL);
4847
4848 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4849 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4850 + htab->elf.hgot->root.u.def.section->output_offset
4851 + htab->elf.hgot->root.u.def.value);
4852
4853 /* Install the initial PLT entry. */
4854 bfd_put_32 (output_bfd,
4855 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
4856 htab->elf.splt->contents);
4857 bfd_put_32 (output_bfd,
4858 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
4859 htab->elf.splt->contents + 4);
4860 bfd_put_32 (output_bfd,
4861 sparc_vxworks_exec_plt0_entry[2],
4862 htab->elf.splt->contents + 8);
4863 bfd_put_32 (output_bfd,
4864 sparc_vxworks_exec_plt0_entry[3],
4865 htab->elf.splt->contents + 12);
4866 bfd_put_32 (output_bfd,
4867 sparc_vxworks_exec_plt0_entry[4],
4868 htab->elf.splt->contents + 16);
4869
4870 loc = htab->srelplt2->contents;
4871
4872 /* Add an unloaded relocation for the initial entry's "sethi". */
4873 rela.r_offset = (htab->elf.splt->output_section->vma
4874 + htab->elf.splt->output_offset);
4875 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4876 rela.r_addend = 8;
4877 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4878 loc += sizeof (Elf32_External_Rela);
4879
4880 /* Likewise the following "or". */
4881 rela.r_offset += 4;
4882 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4883 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4884 loc += sizeof (Elf32_External_Rela);
4885
4886 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4887 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4888 in which symbols were output. */
4889 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4890 {
4891 Elf_Internal_Rela rel;
4892
4893 /* The entry's initial "sethi" (against _G_O_T_). */
4894 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4895 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4896 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4897 loc += sizeof (Elf32_External_Rela);
4898
4899 /* The following "or" (also against _G_O_T_). */
4900 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4901 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4902 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4903 loc += sizeof (Elf32_External_Rela);
4904
4905 /* The .got.plt entry (against _P_L_T_). */
4906 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4907 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4908 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4909 loc += sizeof (Elf32_External_Rela);
4910 }
4911 }
4912
4913 /* Install the first PLT entry in a VxWorks shared object. */
4914
4915 static void
4916 sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4917 {
4918 struct _bfd_sparc_elf_link_hash_table *htab;
4919 unsigned int i;
4920
4921 htab = _bfd_sparc_elf_hash_table (info);
4922 BFD_ASSERT (htab != NULL);
4923
4924 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4925 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
4926 htab->elf.splt->contents + i * 4);
4927 }
4928
4929 /* Finish up local dynamic symbol handling. We set the contents of
4930 various dynamic sections here. */
4931
4932 static bfd_boolean
4933 finish_local_dynamic_symbol (void **slot, void *inf)
4934 {
4935 struct elf_link_hash_entry *h
4936 = (struct elf_link_hash_entry *) *slot;
4937 struct bfd_link_info *info
4938 = (struct bfd_link_info *) inf;
4939
4940 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4941 h, NULL);
4942 }
4943
4944 /* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4945 here since undefined weak symbol may not be dynamic and may not be
4946 called for _bfd_sparc_elf_finish_dynamic_symbol. */
4947
4948 static bfd_boolean
4949 pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
4950 void *inf)
4951 {
4952 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4953 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4954
4955 if (h->root.type != bfd_link_hash_undefweak
4956 || h->dynindx != -1)
4957 return TRUE;
4958
4959 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4960 h, NULL);
4961 }
4962
4963 bfd_boolean
4964 _bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4965 {
4966 bfd *dynobj;
4967 asection *sdyn;
4968 struct _bfd_sparc_elf_link_hash_table *htab;
4969
4970 htab = _bfd_sparc_elf_hash_table (info);
4971 BFD_ASSERT (htab != NULL);
4972 dynobj = htab->elf.dynobj;
4973
4974 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4975
4976 if (elf_hash_table (info)->dynamic_sections_created)
4977 {
4978 asection *splt;
4979
4980 splt = htab->elf.splt;
4981 BFD_ASSERT (splt != NULL && sdyn != NULL);
4982
4983 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4984 return FALSE;
4985
4986 /* Initialize the contents of the .plt section. */
4987 if (splt->size > 0)
4988 {
4989 if (htab->is_vxworks)
4990 {
4991 if (bfd_link_pic (info))
4992 sparc_vxworks_finish_shared_plt (output_bfd, info);
4993 else
4994 sparc_vxworks_finish_exec_plt (output_bfd, info);
4995 }
4996 else
4997 {
4998 memset (splt->contents, 0, htab->plt_header_size);
4999 if (!ABI_64_P (output_bfd))
5000 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
5001 splt->contents + splt->size - 4);
5002 }
5003 }
5004
5005 if (elf_section_data (splt->output_section) != NULL)
5006 elf_section_data (splt->output_section)->this_hdr.sh_entsize
5007 = ((htab->is_vxworks || !ABI_64_P (output_bfd))
5008 ? 0 : htab->plt_entry_size);
5009 }
5010
5011 /* Set the first entry in the global offset table to the address of
5012 the dynamic section. */
5013 if (htab->elf.sgot && htab->elf.sgot->size > 0)
5014 {
5015 bfd_vma val = (sdyn ?
5016 sdyn->output_section->vma + sdyn->output_offset :
5017 0);
5018
5019 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
5020 }
5021
5022 if (htab->elf.sgot)
5023 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
5024 SPARC_ELF_WORD_BYTES (htab);
5025
5026 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
5027 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
5028
5029 /* Fill PLT entries for undefined weak symbols in PIE. */
5030 if (bfd_link_pie (info))
5031 bfd_hash_traverse (&info->hash->table,
5032 pie_finish_undefweak_symbol,
5033 info);
5034 return TRUE;
5035 }
5036
5037 \f
5038 /* Set the right machine number for a SPARC ELF file. */
5039
5040 bfd_boolean
5041 _bfd_sparc_elf_object_p (bfd *abfd)
5042 {
5043 obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
5044 obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
5045 obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
5046
5047 unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
5048 unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
5049 | ELF_SPARC_HWCAP_VIS3
5050 | ELF_SPARC_HWCAP_HPC);
5051 unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
5052 | ELF_SPARC_HWCAP_DES
5053 | ELF_SPARC_HWCAP_KASUMI
5054 | ELF_SPARC_HWCAP_CAMELLIA
5055 | ELF_SPARC_HWCAP_MD5
5056 | ELF_SPARC_HWCAP_SHA1
5057 | ELF_SPARC_HWCAP_SHA256
5058 | ELF_SPARC_HWCAP_SHA512
5059 | ELF_SPARC_HWCAP_MPMUL
5060 | ELF_SPARC_HWCAP_MONT
5061 | ELF_SPARC_HWCAP_CRC32C
5062 | ELF_SPARC_HWCAP_CBCOND
5063 | ELF_SPARC_HWCAP_PAUSE);
5064 unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
5065 | ELF_SPARC_HWCAP_IMA);
5066 unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
5067 | ELF_SPARC_HWCAP2_MWAIT
5068 | ELF_SPARC_HWCAP2_XMPMUL
5069 | ELF_SPARC_HWCAP2_XMONT);
5070 unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6
5071 | ELF_SPARC_HWCAP2_ONADDSUB
5072 | ELF_SPARC_HWCAP2_ONMUL
5073 | ELF_SPARC_HWCAP2_ONDIV
5074 | ELF_SPARC_HWCAP2_DICTUNP
5075 | ELF_SPARC_HWCAP2_FPCMPSHL
5076 | ELF_SPARC_HWCAP2_RLE
5077 | ELF_SPARC_HWCAP2_SHA3);
5078
5079 if (ABI_64_P (abfd))
5080 {
5081 unsigned long mach = bfd_mach_sparc_v9;
5082
5083 if (hwcaps2->i & m8_hwcaps2_mask)
5084 mach = bfd_mach_sparc_v9m8;
5085 else if (hwcaps2->i & v9m_hwcaps2_mask)
5086 mach = bfd_mach_sparc_v9m;
5087 else if (hwcaps->i & v9v_hwcaps_mask)
5088 mach = bfd_mach_sparc_v9v;
5089 else if (hwcaps->i & v9e_hwcaps_mask)
5090 mach = bfd_mach_sparc_v9e;
5091 else if (hwcaps->i & v9d_hwcaps_mask)
5092 mach = bfd_mach_sparc_v9d;
5093 else if (hwcaps->i & v9c_hwcaps_mask)
5094 mach = bfd_mach_sparc_v9c;
5095 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
5096 mach = bfd_mach_sparc_v9b;
5097 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
5098 mach = bfd_mach_sparc_v9a;
5099 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
5100 }
5101 else
5102 {
5103 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
5104 {
5105 if (hwcaps2->i & m8_hwcaps2_mask)
5106 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5107 bfd_mach_sparc_v8plusm8);
5108 else if (hwcaps2->i & v9m_hwcaps2_mask)
5109 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5110 bfd_mach_sparc_v8plusm);
5111 else if (hwcaps->i & v9v_hwcaps_mask)
5112 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5113 bfd_mach_sparc_v8plusv);
5114 else if (hwcaps->i & v9e_hwcaps_mask)
5115 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5116 bfd_mach_sparc_v8pluse);
5117 else if (hwcaps->i & v9d_hwcaps_mask)
5118 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5119 bfd_mach_sparc_v8plusd);
5120 else if (hwcaps->i & v9c_hwcaps_mask)
5121 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5122 bfd_mach_sparc_v8plusc);
5123 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
5124 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5125 bfd_mach_sparc_v8plusb);
5126 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
5127 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5128 bfd_mach_sparc_v8plusa);
5129 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
5130 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5131 bfd_mach_sparc_v8plus);
5132 else
5133 return FALSE;
5134 }
5135 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
5136 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
5137 bfd_mach_sparc_sparclite_le);
5138 else
5139 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
5140 }
5141 }
5142
5143 /* Return address for Ith PLT stub in section PLT, for relocation REL
5144 or (bfd_vma) -1 if it should not be included. */
5145
5146 bfd_vma
5147 _bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
5148 {
5149 if (ABI_64_P (plt->owner))
5150 {
5151 bfd_vma j;
5152
5153 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
5154 if (i < PLT64_LARGE_THRESHOLD)
5155 return plt->vma + i * PLT64_ENTRY_SIZE;
5156
5157 j = (i - PLT64_LARGE_THRESHOLD) % 160;
5158 i -= j;
5159 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
5160 }
5161 else
5162 return rel->address;
5163 }
5164
5165 /* Merge backend specific data from an object file to the output
5166 object file when linking. */
5167
5168 bfd_boolean
5169 _bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
5170 {
5171 bfd *obfd = info->output_bfd;
5172 obj_attribute *in_attr, *in_attrs;
5173 obj_attribute *out_attr, *out_attrs;
5174
5175 if (!elf_known_obj_attributes_proc (obfd)[0].i)
5176 {
5177 /* This is the first object. Copy the attributes. */
5178 _bfd_elf_copy_obj_attributes (ibfd, obfd);
5179
5180 /* Use the Tag_null value to indicate the attributes have been
5181 initialized. */
5182 elf_known_obj_attributes_proc (obfd)[0].i = 1;
5183
5184 return TRUE;
5185 }
5186
5187 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
5188 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
5189
5190 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
5191 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
5192
5193 out_attr->i |= in_attr->i;
5194 out_attr->type = 1;
5195
5196 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
5197 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
5198
5199 out_attr->i |= in_attr->i;
5200 out_attr->type = 1;
5201
5202 /* Merge Tag_compatibility attributes and any common GNU ones. */
5203 _bfd_elf_merge_object_attributes (ibfd, info);
5204
5205 return TRUE;
5206 }
GDB Binutils - Deliverables
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