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[thirdparty/binutils-gdb.git] / bfd / elfxx-sparc.c
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22b75d0a 1/* SPARC-specific support for ELF
250d07de 2 Copyright (C) 2005-2021 Free Software Foundation, Inc.
22b75d0a
DM		 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
cd123cb7 8 the Free Software Foundation; either version 3 of the License, or
22b75d0a
DM		 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
cd123cb7
NC		 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
22b75d0a
DM		 21
22/* This file handles functionality common to the different SPARC ABI's. */
23
22b75d0a 24#include "sysdep.h"
3db64b00 25#include "bfd.h"
22b75d0a
DM		 26#include "bfdlink.h"
27#include "libbfd.h"
910600e9 28#include "libiberty.h"
22b75d0a
DM		 29#include "elf-bfd.h"
30#include "elf/sparc.h"
31#include "opcode/sparc.h"
32#include "elfxx-sparc.h"
910600e9 33#include "elf-vxworks.h"
d0c9aeb3
DM		 34#include "objalloc.h"
35#include "hashtab.h"
22b75d0a
DM		 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
53static bfd_reloc_status_type
54init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 55 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 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
95static bfd_reloc_status_type
96sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
97 arelent *reloc_entry ATTRIBUTE_UNUSED,
98 asymbol *symbol ATTRIBUTE_UNUSED,
2c3fc389 99 void * data ATTRIBUTE_UNUSED,
22b75d0a
DM		 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
109static bfd_reloc_status_type
110sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 111 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 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
2615994e
DM		 134/* Handle the WDISP10 reloc. */
135
136static bfd_reloc_status_type
137sparc_elf_wdisp10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 138 void * data, asection *input_section, bfd *output_bfd,
2615994e
DM		 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
22b75d0a
DM		 162/* Handle the HIX22 reloc. */
163
164static bfd_reloc_status_type
165sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 166 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 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
190static bfd_reloc_status_type
191sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 192 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 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
210static reloc_howto_type _bfd_sparc_elf_howto_table[] =
211{
07d6d2b8
AM		 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),
22b75d0a
DM		 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),
07d6d2b8
AM		 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),
22b75d0a
DM		 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),
07d6d2b8
AM		 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),
22b75d0a
DM		 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),
07d6d2b8
AM		 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),
22b75d0a 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),
07d6d2b8
AM		 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),
22b75d0a
DM		 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),
739f7f82
DM		 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),
07d6d2b8 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),
739f7f82 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),
2615994e
DM		 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),
22b75d0a 301};
d0c9aeb3
DM		 302static 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);
304static 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);
22b75d0a
DM		 306static 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);
308static 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);
310static 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
22b75d0a 313reloc_howto_type *
f3185997 314_bfd_sparc_elf_reloc_type_lookup (bfd *abfd,
22b75d0a
DM		 315 bfd_reloc_code_real_type code)
316{
679b7c76
DM		 317 /* We explicitly handle each relocation type in the switch
318 instead of using a lookup table for efficiency. */
22b75d0a
DM		 319 switch (code)
320 {
679b7c76
DM		 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
2615994e
DM		 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
d0c9aeb3
DM		 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
22b75d0a
DM		 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:
679b7c76 586 break;
22b75d0a 587 }
f3185997 588 /* xgettext:c-format */
e8f5af78 589 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, (int) code);
f3185997
NC		 590 bfd_set_error (bfd_error_bad_value);
591 return NULL;
22b75d0a
DM		 592}
593
157090f7
AM		 594reloc_howto_type *
595_bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
596 const char *r_name)
597{
598 unsigned int i;
599
f3185997 600 for (i = 0; i < ARRAY_SIZE (_bfd_sparc_elf_howto_table); i++)
157090f7
AM		 601 if (_bfd_sparc_elf_howto_table[i].name != NULL
602 && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
603 return &_bfd_sparc_elf_howto_table[i];
604
605 if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
606 return &sparc_vtinherit_howto;
607 if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
608 return &sparc_vtentry_howto;
609 if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
610 return &sparc_rev32_howto;
611
612 return NULL;
613}
614
22b75d0a 615reloc_howto_type *
f3185997
NC		 616_bfd_sparc_elf_info_to_howto_ptr (bfd *abfd ATTRIBUTE_UNUSED,
617 unsigned int r_type)
22b75d0a
DM		 618{
619 switch (r_type)
620 {
d0c9aeb3
DM		 621 case R_SPARC_JMP_IREL:
622 return &sparc_jmp_irel_howto;
623
624 case R_SPARC_IRELATIVE:
625 return &sparc_irelative_howto;
626
22b75d0a
DM		 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:
d0fb9a8d
JJ		 637 if (r_type >= (unsigned int) R_SPARC_max_std)
638 {
0aa13fee
AM		 639 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
640 abfd, r_type);
f3185997
NC		 641 bfd_set_error (bfd_error_bad_value);
642 return NULL;
d0fb9a8d 643 }
22b75d0a
DM		 644 return &_bfd_sparc_elf_howto_table[r_type];
645 }
646}
647
648/* Both 32-bit and 64-bit sparc encode this in an identical manner,
649 so just take advantage of that. */
650#define SPARC_ELF_R_TYPE(r_info) \
651 ((r_info) & 0xff)
652
f3185997 653bfd_boolean
0aa13fee 654_bfd_sparc_elf_info_to_howto (bfd *abfd, arelent *cache_ptr,
22b75d0a
DM		 655 Elf_Internal_Rela *dst)
656{
657 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
658
f3185997
NC		 659 if ((cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (abfd, r_type)) == NULL)
660 {
f3185997
NC		 661 bfd_set_error (bfd_error_bad_value);
662 return FALSE;
663 }
664 return TRUE;
22b75d0a
DM		 665}
666\f
667
668/* The nop opcode we use. */
669#define SPARC_NOP 0x01000000
670
671#define SPARC_INSN_BYTES 4
672
bb1dd176
QZ		 673/* Is an undefined weak symbol resolved to 0 ?
674 Reference to an undefined weak symbol is resolved to 0 when
675 building an executable if it isn't dynamic and
676 1. Has non-GOT/non-PLT relocations in text section.
677 Or
678 2. Has no GOT/PLT relocation. */
07d6d2b8
AM		 679#define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
680 ((EH)->elf.root.type == bfd_link_hash_undefweak \
681 && bfd_link_executable (INFO) \
682 && (_bfd_sparc_elf_hash_table (INFO)->interp == NULL \
a8735c82 683 || !(INFO)->dynamic_undefined_weak \
07d6d2b8 684 || (EH)->has_non_got_reloc \
a8735c82 685 || !(EH)->has_got_reloc))
bb1dd176 686
22b75d0a
DM		 687/* SPARC ELF linker hash entry. */
688
689struct _bfd_sparc_elf_link_hash_entry
690{
691 struct elf_link_hash_entry elf;
692
22b75d0a
DM		 693#define GOT_UNKNOWN 0
694#define GOT_NORMAL 1
695#define GOT_TLS_GD 2
696#define GOT_TLS_IE 3
697 unsigned char tls_type;
bb1dd176 698
f8745e1c 699 /* Symbol has GOT or PLT relocations. */
bb1dd176
QZ		 700 unsigned int has_got_reloc : 1;
701
f8745e1c
EB		 702 /* Symbol has old-style, non-relaxable GOT relocations. */
703 unsigned int has_old_style_got_reloc : 1;
704
bb1dd176
QZ		 705 /* Symbol has non-GOT/non-PLT relocations in text sections. */
706 unsigned int has_non_got_reloc : 1;
707
22b75d0a
DM		 708};
709
710#define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
711
712struct _bfd_sparc_elf_obj_tdata
713{
714 struct elf_obj_tdata root;
715
716 /* tls_type for each local got entry. */
717 char *local_got_tls_type;
718
719 /* TRUE if TLS GD relocs has been seen for this object. */
720 bfd_boolean has_tlsgd;
721};
722
723#define _bfd_sparc_elf_tdata(abfd) \
724 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
725
726#define _bfd_sparc_elf_local_got_tls_type(abfd) \
727 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
728
0ffa91dd
NC		 729#define is_sparc_elf(bfd) \
730 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
731 && elf_tdata (bfd) != NULL \
4dfe6ac6 732 && elf_object_id (bfd) == SPARC_ELF_DATA)
0ffa91dd 733
22b75d0a
DM		 734bfd_boolean
735_bfd_sparc_elf_mkobject (bfd *abfd)
736{
0ffa91dd 737 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
4dfe6ac6 738 SPARC_ELF_DATA);
22b75d0a
DM		 739}
740
741static void
91d6fa6a 742sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 743{
91d6fa6a 744 bfd_put_32 (abfd, val, ptr);
22b75d0a
DM		 745}
746
747static void
91d6fa6a 748sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 749{
91d6fa6a 750 bfd_put_64 (abfd, val, ptr);
22b75d0a
DM		 751}
752
753static void
39817122 754sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
22b75d0a 755{
39817122
RS		 756 const struct elf_backend_data *bed;
757 bfd_byte *loc;
22b75d0a 758
39817122 759 bed = get_elf_backend_data (abfd);
a8735c82 760 BFD_ASSERT (s->reloc_count * bed->s->sizeof_rela < s->size);
39817122
RS		 761 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
762 bed->s->swap_reloca_out (abfd, rel, loc);
22b75d0a
DM		 763}
764
765static bfd_vma
e459dc7b 766sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 767 bfd_vma rel_index ATTRIBUTE_UNUSED,
e459dc7b 768 bfd_vma type ATTRIBUTE_UNUSED)
22b75d0a 769{
91d6fa6a 770 return ELF64_R_INFO (rel_index,
22b75d0a
DM		 771 (in_rel ?
772 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
773 type) : type));
774}
775
776static bfd_vma
777sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 778 bfd_vma rel_index, bfd_vma type)
22b75d0a 779{
91d6fa6a 780 return ELF32_R_INFO (rel_index, type);
22b75d0a
DM		 781}
782
783static bfd_vma
784sparc_elf_r_symndx_64 (bfd_vma r_info)
785{
e8be8da4
DM		 786 bfd_vma r_symndx = ELF32_R_SYM (r_info);
787 return (r_symndx >> 24);
22b75d0a
DM		 788}
789
790static bfd_vma
791sparc_elf_r_symndx_32 (bfd_vma r_info)
792{
793 return ELF32_R_SYM (r_info);
794}
795
796/* PLT/GOT stuff */
797
798#define PLT32_ENTRY_SIZE 12
799#define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
800
801/* The first four entries in a 32-bit procedure linkage table are reserved,
802 and the initial contents are unimportant (we zero them out).
803 Subsequent entries look like this. See the SVR4 ABI SPARC
804 supplement to see how this works. */
805
806/* sethi %hi(.-.plt0),%g1. We fill in the address later. */
807#define PLT32_ENTRY_WORD0 0x03000000
808/* b,a .plt0. We fill in the offset later. */
809#define PLT32_ENTRY_WORD1 0x30800000
810/* nop. */
811#define PLT32_ENTRY_WORD2 SPARC_NOP
812
813static int
814sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
815 bfd_vma max ATTRIBUTE_UNUSED,
816 bfd_vma *r_offset)
817{
818 bfd_put_32 (output_bfd,
819 PLT32_ENTRY_WORD0 + offset,
820 splt->contents + offset);
821 bfd_put_32 (output_bfd,
822 (PLT32_ENTRY_WORD1
823 + (((- (offset + 4)) >> 2) & 0x3fffff)),
824 splt->contents + offset + 4);
825 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
826 splt->contents + offset + 8);
827
828 *r_offset = offset;
829
830 return offset / PLT32_ENTRY_SIZE - 4;
831}
832
833/* Both the headers and the entries are icache aligned. */
834#define PLT64_ENTRY_SIZE 32
835#define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
836#define PLT64_LARGE_THRESHOLD 32768
837
838static int
839sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
840 bfd_vma max, bfd_vma *r_offset)
841{
842 unsigned char *entry = splt->contents + offset;
843 const unsigned int nop = SPARC_NOP;
91d6fa6a 844 int plt_index;
22b75d0a
DM		 845
846 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
847 {
848 unsigned int sethi, ba;
849
850 *r_offset = offset;
851
91d6fa6a 852 plt_index = (offset / PLT64_ENTRY_SIZE);
22b75d0a 853
91d6fa6a 854 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
22b75d0a
DM		 855 ba = 0x30680000
856 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
857
858 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
859 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
860 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
861 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
862 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
863 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
864 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
865 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
866 }
867 else
868 {
869 unsigned char *ptr;
870 unsigned int ldx;
871 int block, last_block, ofs, last_ofs, chunks_this_block;
872 const int insn_chunk_size = (6 * 4);
873 const int ptr_chunk_size = (1 * 8);
874 const int entries_per_block = 160;
875 const int block_size = entries_per_block * (insn_chunk_size
876 + ptr_chunk_size);
877
878 /* Entries 32768 and higher are grouped into blocks of 160.
879 The blocks are further subdivided into 160 sequences of
880 6 instructions and 160 pointers. If a block does not require
881 the full 160 entries, let's say it requires N, then there
882 will be N sequences of 6 instructions and N pointers. */
883
884 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
885 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
886
887 block = offset / block_size;
888 last_block = max / block_size;
889 if (block != last_block)
890 {
891 chunks_this_block = 160;
892 }
893 else
894 {
895 last_ofs = max % block_size;
896 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
897 }
898
899 ofs = offset % block_size;
900
91d6fa6a 901 plt_index = (PLT64_LARGE_THRESHOLD +
22b75d0a
DM		 902 (block * 160) +
903 (ofs / insn_chunk_size));
904
905 ptr = splt->contents
906 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
907 + (block * block_size)
908 + (chunks_this_block * insn_chunk_size)
909 + (ofs / insn_chunk_size) * ptr_chunk_size;
910
911 *r_offset = (bfd_vma) (ptr - splt->contents);
912
913 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
914
915 /* mov %o7,%g5
916 call .+8
917 nop
918 ldx [%o7+P],%g1
919 jmpl %o7+%g1,%g1
920 mov %g5,%o7 */
921 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
922 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
923 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
07d6d2b8 924 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
22b75d0a
DM		 925 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
926 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
927
928 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
929 }
930
91d6fa6a 931 return plt_index - 4;
22b75d0a
DM		 932}
933
910600e9
RS		 934/* The format of the first PLT entry in a VxWorks executable. */
935static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
936 {
937 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
938 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
939 0xc4008000, /* ld [ %g2 ], %g2 */
940 0x81c08000, /* jmp %g2 */
941 0x01000000 /* nop */
942 };
943
944/* The format of subsequent PLT entries. */
945static const bfd_vma sparc_vxworks_exec_plt_entry[] =
946 {
947 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
948 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
949 0xc2004000, /* ld [ %g1 ], %g1 */
950 0x81c04000, /* jmp %g1 */
951 0x01000000, /* nop */
952 0x03000000, /* sethi %hi(f@pltindex), %g1 */
953 0x10800000, /* b _PLT_resolve */
954 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
955 };
956
957/* The format of the first PLT entry in a VxWorks shared object. */
958static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
959 {
960 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
961 0x81c08000, /* jmp %g2 */
962 0x01000000 /* nop */
963 };
964
965/* The format of subsequent PLT entries. */
966static const bfd_vma sparc_vxworks_shared_plt_entry[] =
967 {
968 0x03000000, /* sethi %hi(f@got), %g1 */
969 0x82106000, /* or %g1, %lo(f@got), %g1 */
970 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
971 0x81c04000, /* jmp %g1 */
972 0x01000000, /* nop */
973 0x03000000, /* sethi %hi(f@pltindex), %g1 */
974 0x10800000, /* b _PLT_resolve */
975 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
976 };
977
22b75d0a
DM		 978#define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
979 htab->put_word(bfd, val, ptr)
980
22b75d0a
DM		 981#define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
982 htab->r_info(in_rel, index, type)
983
984#define SPARC_ELF_R_SYMNDX(htab, r_info) \
985 htab->r_symndx(r_info)
986
987#define SPARC_ELF_WORD_BYTES(htab) \
988 htab->bytes_per_word
989
990#define SPARC_ELF_RELA_BYTES(htab) \
991 htab->bytes_per_rela
992
993#define SPARC_ELF_DTPOFF_RELOC(htab) \
994 htab->dtpoff_reloc
995
996#define SPARC_ELF_DTPMOD_RELOC(htab) \
997 htab->dtpmod_reloc
998
999#define SPARC_ELF_TPOFF_RELOC(htab) \
1000 htab->tpoff_reloc
1001
1002#define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
1003 htab->build_plt_entry (obfd, splt, off, max, r_off)
1004
1005/* Create an entry in an SPARC ELF linker hash table. */
1006
1007static struct bfd_hash_entry *
1008link_hash_newfunc (struct bfd_hash_entry *entry,
1009 struct bfd_hash_table *table, const char *string)
1010{
1011 /* Allocate the structure if it has not already been allocated by a
1012 subclass. */
1013 if (entry == NULL)
1014 {
1015 entry = bfd_hash_allocate (table,
1016 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1017 if (entry == NULL)
1018 return entry;
1019 }
1020
1021 /* Call the allocation method of the superclass. */
1022 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1023 if (entry != NULL)
1024 {
1025 struct _bfd_sparc_elf_link_hash_entry *eh;
1026
1027 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
22b75d0a 1028 eh->tls_type = GOT_UNKNOWN;
bb1dd176
QZ		 1029 eh->has_got_reloc = 0;
1030 eh->has_non_got_reloc = 0;
22b75d0a
DM		 1031 }
1032
1033 return entry;
1034}
1035
1036/* The name of the dynamic interpreter. This is put in the .interp
1037 section. */
1038
1039#define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1040#define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1041
d0c9aeb3
DM		 1042/* Compute a hash of a local hash entry. We use elf_link_hash_entry
1043 for local symbol so that we can handle local STT_GNU_IFUNC symbols
1044 as global symbol. We reuse indx and dynstr_index for local symbol
1045 hash since they aren't used by global symbols in this backend. */
1046
1047static hashval_t
1048elf_sparc_local_htab_hash (const void *ptr)
1049{
1050 struct elf_link_hash_entry *h
1051 = (struct elf_link_hash_entry *) ptr;
1052 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1053}
1054
1055/* Compare local hash entries. */
1056
1057static int
1058elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1059{
1060 struct elf_link_hash_entry *h1
1061 = (struct elf_link_hash_entry *) ptr1;
1062 struct elf_link_hash_entry *h2
1063 = (struct elf_link_hash_entry *) ptr2;
1064
1065 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1066}
1067
1068/* Find and/or create a hash entry for local symbol. */
1069
1070static struct elf_link_hash_entry *
1071elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1072 bfd *abfd, const Elf_Internal_Rela *rel,
1073 bfd_boolean create)
1074{
1075 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1076 asection *sec = abfd->sections;
1077 unsigned long r_symndx;
1078 hashval_t h;
1079 void **slot;
1080
1081 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1082 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1083
1084 e.elf.indx = sec->id;
1085 e.elf.dynstr_index = r_symndx;
1086 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1087 create ? INSERT : NO_INSERT);
1088
1089 if (!slot)
1090 return NULL;
1091
1092 if (*slot)
1093 {
1094 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1095 return &ret->elf;
1096 }
1097
1098 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1099 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1100 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1101 if (ret)
1102 {
1103 memset (ret, 0, sizeof (*ret));
1104 ret->elf.indx = sec->id;
1105 ret->elf.dynstr_index = r_symndx;
1106 ret->elf.dynindx = -1;
1107 ret->elf.plt.offset = (bfd_vma) -1;
1108 ret->elf.got.offset = (bfd_vma) -1;
1109 *slot = ret;
1110 }
1111 return &ret->elf;
1112}
1113
68faa637
AM		 1114/* Destroy a SPARC ELF linker hash table. */
1115
d495ab0d
AM		 1116static void
1117_bfd_sparc_elf_link_hash_table_free (bfd *obfd)
68faa637
AM		 1118{
1119 struct _bfd_sparc_elf_link_hash_table *htab
d495ab0d 1120 = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
68faa637
AM		 1121
1122 if (htab->loc_hash_table)
1123 htab_delete (htab->loc_hash_table);
1124 if (htab->loc_hash_memory)
1125 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
d495ab0d 1126 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM		 1127}
1128
22b75d0a
DM		 1129/* Create a SPARC ELF linker hash table. */
1130
1131struct bfd_link_hash_table *
1132_bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1133{
1134 struct _bfd_sparc_elf_link_hash_table *ret;
986f0783 1135 size_t amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
22b75d0a
DM		 1136
1137 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1138 if (ret == NULL)
1139 return NULL;
1140
1141 if (ABI_64_P (abfd))
1142 {
1143 ret->put_word = sparc_put_word_64;
22b75d0a
DM		 1144 ret->r_info = sparc_elf_r_info_64;
1145 ret->r_symndx = sparc_elf_r_symndx_64;
22b75d0a
DM		 1146 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1147 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1148 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1149 ret->word_align_power = 3;
1150 ret->align_power_max = 4;
1151 ret->bytes_per_word = 8;
1152 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
c2e70a82 1153 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
22b75d0a 1154 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1155
1156 ret->build_plt_entry = sparc64_plt_entry_build;
1157 ret->plt_header_size = PLT64_HEADER_SIZE;
1158 ret->plt_entry_size = PLT64_ENTRY_SIZE;
22b75d0a
DM		 1159 }
1160 else
1161 {
1162 ret->put_word = sparc_put_word_32;
22b75d0a
DM		 1163 ret->r_info = sparc_elf_r_info_32;
1164 ret->r_symndx = sparc_elf_r_symndx_32;
22b75d0a
DM		 1165 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1166 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1167 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1168 ret->word_align_power = 2;
1169 ret->align_power_max = 3;
1170 ret->bytes_per_word = 4;
1171 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
c2e70a82 1172 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
22b75d0a 1173 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1174
1175 ret->build_plt_entry = sparc32_plt_entry_build;
1176 ret->plt_header_size = PLT32_HEADER_SIZE;
1177 ret->plt_entry_size = PLT32_ENTRY_SIZE;
22b75d0a
DM		 1178 }
1179
66eb6687 1180 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC		 1181 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1182 SPARC_ELF_DATA))
22b75d0a
DM		 1183 {
1184 free (ret);
1185 return NULL;
1186 }
1187
d0c9aeb3
DM		 1188 ret->loc_hash_table = htab_try_create (1024,
1189 elf_sparc_local_htab_hash,
1190 elf_sparc_local_htab_eq,
1191 NULL);
1192 ret->loc_hash_memory = objalloc_create ();
1193 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1194 {
d495ab0d 1195 _bfd_sparc_elf_link_hash_table_free (abfd);
d0c9aeb3
DM		 1196 return NULL;
1197 }
d495ab0d 1198 ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
d0c9aeb3 1199
22b75d0a
DM		 1200 return &ret->elf.root;
1201}
1202
22b75d0a
DM		 1203/* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1204 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1205 hash table. */
1206
1207bfd_boolean
1208_bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1209 struct bfd_link_info *info)
1210{
1211 struct _bfd_sparc_elf_link_hash_table *htab;
1212
1213 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 1214 BFD_ASSERT (htab != NULL);
1215
22b75d0a
DM		 1216 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1217 return FALSE;
1218
90c14f0c 1219 if (htab->elf.target_os == is_vxworks)
910600e9
RS		 1220 {
1221 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1222 return FALSE;
0e1862bb 1223 if (bfd_link_pic (info))
910600e9
RS		 1224 {
1225 htab->plt_header_size
1226 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1227 htab->plt_entry_size
1228 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1229 }
1230 else
1231 {
1232 htab->plt_header_size
1233 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1234 htab->plt_entry_size
1235 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1236 }
1237 }
910600e9 1238
9d19e4fd
AM		 1239 if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1240 || (!bfd_link_pic (info) && !htab->elf.srelbss))
22b75d0a
DM		 1241 abort ();
1242
1243 return TRUE;
1244}
1245
d0c9aeb3
DM		 1246static bfd_boolean
1247create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1248{
1249 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1250 struct elf_link_hash_table *htab = elf_hash_table (info);
1251 flagword flags, pltflags;
1252 asection *s;
1253
1254 if (htab->irelifunc != NULL || htab->iplt != NULL)
1255 return TRUE;
1256
1257 flags = bed->dynamic_sec_flags;
1258 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1259
1260 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1261 if (s == NULL
fd361982 1262 || !bfd_set_section_alignment (s, bed->plt_alignment))
d0c9aeb3
DM		 1263 return FALSE;
1264 htab->iplt = s;
1265
1266 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1267 flags | SEC_READONLY);
1268 if (s == NULL
fd361982 1269 || !bfd_set_section_alignment (s, bed->s->log_file_align))
d0c9aeb3
DM		 1270 return FALSE;
1271 htab->irelplt = s;
1272
1273 return TRUE;
1274}
1275
22b75d0a
DM		 1276/* Copy the extra info we tack onto an elf_link_hash_entry. */
1277
1278void
fcfa13d2 1279_bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
22b75d0a
DM		 1280 struct elf_link_hash_entry *dir,
1281 struct elf_link_hash_entry *ind)
1282{
1283 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1284
1285 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1286 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1287
a8735c82 1288 if (ind->root.type == bfd_link_hash_indirect && dir->got.refcount <= 0)
22b75d0a
DM		 1289 {
1290 edir->tls_type = eind->tls_type;
1291 eind->tls_type = GOT_UNKNOWN;
1292 }
bb1dd176
QZ		 1293
1294 /* Copy has_got_reloc and has_non_got_reloc. */
1295 edir->has_got_reloc |= eind->has_got_reloc;
1296 edir->has_non_got_reloc |= eind->has_non_got_reloc;
1297
fcfa13d2 1298 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
22b75d0a
DM		 1299}
1300
1301static int
1302sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1303 int r_type, int is_local)
1304{
1305 if (! ABI_64_P (abfd)
1306 && r_type == R_SPARC_TLS_GD_HI22
1307 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
c20c30f6 1308 return R_SPARC_REV32;
22b75d0a 1309
c20c30f6 1310 if (!bfd_link_executable (info))
22b75d0a
DM		 1311 return r_type;
1312
1313 switch (r_type)
1314 {
1315 case R_SPARC_TLS_GD_HI22:
c20c30f6 1316 return is_local ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_IE_HI22;
22b75d0a 1317 case R_SPARC_TLS_GD_LO10:
c20c30f6 1318 return is_local ? R_SPARC_TLS_LE_LOX10 : R_SPARC_TLS_IE_LO10;
22b75d0a
DM		 1319 case R_SPARC_TLS_LDM_HI22:
1320 return R_SPARC_TLS_LE_HIX22;
1321 case R_SPARC_TLS_LDM_LO10:
1322 return R_SPARC_TLS_LE_LOX10;
c20c30f6
EB		 1323 case R_SPARC_TLS_IE_HI22:
1324 return is_local ? R_SPARC_TLS_LE_HIX22 : r_type;
1325 case R_SPARC_TLS_IE_LO10:
1326 return is_local ? R_SPARC_TLS_LE_LOX10 : r_type;
22b75d0a
DM		 1327 }
1328
1329 return r_type;
1330}
1331\f
1332/* Look through the relocs for a section during the first phase, and
1333 allocate space in the global offset table or procedure linkage
1334 table. */
1335
1336bfd_boolean
1337_bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1338 asection *sec, const Elf_Internal_Rela *relocs)
1339{
1340 struct _bfd_sparc_elf_link_hash_table *htab;
1341 Elf_Internal_Shdr *symtab_hdr;
1342 struct elf_link_hash_entry **sym_hashes;
22b75d0a
DM		 1343 const Elf_Internal_Rela *rel;
1344 const Elf_Internal_Rela *rel_end;
1345 asection *sreloc;
1346 int num_relocs;
1347 bfd_boolean checked_tlsgd = FALSE;
1348
0e1862bb 1349 if (bfd_link_relocatable (info))
22b75d0a
DM		 1350 return TRUE;
1351
1352 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1353 BFD_ASSERT (htab != NULL);
0ffa91dd 1354 symtab_hdr = &elf_symtab_hdr (abfd);
22b75d0a 1355 sym_hashes = elf_sym_hashes (abfd);
22b75d0a
DM		 1356
1357 sreloc = NULL;
1358
1359 if (ABI_64_P (abfd))
d4730f92 1360 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
22b75d0a
DM		 1361 else
1362 num_relocs = sec->reloc_count;
0ffa91dd
NC		 1363
1364 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1365
d0c9aeb3
DM		 1366 if (htab->elf.dynobj == NULL)
1367 htab->elf.dynobj = abfd;
1368 if (!create_ifunc_sections (htab->elf.dynobj, info))
1369 return FALSE;
1370
22b75d0a
DM		 1371 rel_end = relocs + num_relocs;
1372 for (rel = relocs; rel < rel_end; rel++)
1373 {
1374 unsigned int r_type;
d42c267e 1375 unsigned int r_symndx;
22b75d0a 1376 struct elf_link_hash_entry *h;
bb1dd176 1377 struct _bfd_sparc_elf_link_hash_entry *eh;
d0c9aeb3 1378 Elf_Internal_Sym *isym;
22b75d0a
DM		 1379
1380 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1381 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1382
1383 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1384 {
695344c0 1385 /* xgettext:c-format */
871b3ab2 1386 _bfd_error_handler (_("%pB: bad symbol index: %d"), abfd, r_symndx);
22b75d0a
DM		 1387 return FALSE;
1388 }
1389
d0c9aeb3 1390 isym = NULL;
22b75d0a 1391 if (r_symndx < symtab_hdr->sh_info)
d0c9aeb3
DM		 1392 {
1393 /* A local symbol. */
f1dfbfdb
L		 1394 isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache, abfd,
1395 r_symndx);
d0c9aeb3
DM		 1396 if (isym == NULL)
1397 return FALSE;
1398
1399 /* Check relocation against local STT_GNU_IFUNC symbol. */
1400 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1401 {
c20c30f6 1402 h = elf_sparc_get_local_sym_hash (htab, abfd, rel, TRUE);
d0c9aeb3
DM		 1403 if (h == NULL)
1404 return FALSE;
68ffbac6 1405
d0c9aeb3
DM		 1406 /* Fake a STT_GNU_IFUNC symbol. */
1407 h->type = STT_GNU_IFUNC;
1408 h->def_regular = 1;
1409 h->ref_regular = 1;
1410 h->forced_local = 1;
1411 h->root.type = bfd_link_hash_defined;
1412 }
1413 else
1414 h = NULL;
1415 }
22b75d0a 1416 else
973a3492
L		 1417 {
1418 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1419 while (h->root.type == bfd_link_hash_indirect
1420 || h->root.type == bfd_link_hash_warning)
1421 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1422 }
22b75d0a 1423
c20c30f6 1424 if (h && h->type == STT_GNU_IFUNC && h->def_regular)
d0c9aeb3 1425 {
c20c30f6
EB		 1426 h->ref_regular = 1;
1427 h->plt.refcount += 1;
d0c9aeb3
DM		 1428 }
1429
22b75d0a
DM		 1430 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1431 with R_SPARC_TLS_GD_HI22. */
1432 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1433 switch (r_type)
1434 {
1435 case R_SPARC_TLS_GD_HI22:
1436 {
1437 const Elf_Internal_Rela *relt;
1438
1439 for (relt = rel + 1; relt < rel_end; relt++)
1440 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1441 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1442 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1443 break;
1444 checked_tlsgd = TRUE;
1445 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1446 }
1447 break;
1448 case R_SPARC_TLS_GD_LO10:
1449 case R_SPARC_TLS_GD_ADD:
1450 case R_SPARC_TLS_GD_CALL:
1451 checked_tlsgd = TRUE;
1452 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1453 break;
1454 }
1455
1456 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
bb1dd176
QZ		 1457 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1458
22b75d0a
DM		 1459 switch (r_type)
1460 {
1461 case R_SPARC_TLS_LDM_HI22:
1462 case R_SPARC_TLS_LDM_LO10:
1463 htab->tls_ldm_got.refcount += 1;
07d6d2b8
AM		 1464 if (eh != NULL)
1465 eh->has_got_reloc = 1;
22b75d0a
DM		 1466 break;
1467
1468 case R_SPARC_TLS_LE_HIX22:
1469 case R_SPARC_TLS_LE_LOX10:
c20c30f6 1470 if (!bfd_link_executable (info))
22b75d0a
DM		 1471 goto r_sparc_plt32;
1472 break;
1473
1474 case R_SPARC_TLS_IE_HI22:
1475 case R_SPARC_TLS_IE_LO10:
c20c30f6 1476 if (!bfd_link_executable (info))
22b75d0a
DM		 1477 info->flags |= DF_STATIC_TLS;
1478 /* Fall through */
1479
1480 case R_SPARC_GOT10:
1481 case R_SPARC_GOT13:
1482 case R_SPARC_GOT22:
739f7f82
DM		 1483 case R_SPARC_GOTDATA_HIX22:
1484 case R_SPARC_GOTDATA_LOX10:
1485 case R_SPARC_GOTDATA_OP_HIX22:
1486 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1487 case R_SPARC_TLS_GD_HI22:
1488 case R_SPARC_TLS_GD_LO10:
1489 /* This symbol requires a global offset table entry. */
1490 {
1491 int tls_type, old_tls_type;
1492
1493 switch (r_type)
1494 {
22b75d0a
DM		 1495 case R_SPARC_TLS_GD_HI22:
1496 case R_SPARC_TLS_GD_LO10:
1497 tls_type = GOT_TLS_GD;
1498 break;
1499 case R_SPARC_TLS_IE_HI22:
1500 case R_SPARC_TLS_IE_LO10:
1501 tls_type = GOT_TLS_IE;
1502 break;
c20c30f6
EB		 1503 default:
1504 tls_type = GOT_NORMAL;
1505 break;
22b75d0a
DM		 1506 }
1507
1508 if (h != NULL)
1509 {
1510 h->got.refcount += 1;
1511 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1512 }
1513 else
1514 {
1515 bfd_signed_vma *local_got_refcounts;
1516
1517 /* This is a global offset table entry for a local symbol. */
1518 local_got_refcounts = elf_local_got_refcounts (abfd);
1519 if (local_got_refcounts == NULL)
1520 {
1521 bfd_size_type size;
1522
1523 size = symtab_hdr->sh_info;
1524 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1525 local_got_refcounts = ((bfd_signed_vma *)
1526 bfd_zalloc (abfd, size));
1527 if (local_got_refcounts == NULL)
1528 return FALSE;
1529 elf_local_got_refcounts (abfd) = local_got_refcounts;
1530 _bfd_sparc_elf_local_got_tls_type (abfd)
1531 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1532 }
00c50991 1533
c20c30f6
EB		 1534 if (r_type != R_SPARC_GOTDATA_OP_HIX22
1535 && r_type != R_SPARC_GOTDATA_OP_LOX10)
1536 local_got_refcounts[r_symndx] += 1;
1537
f8745e1c
EB		 1538 old_tls_type
1539 = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
22b75d0a
DM		 1540 }
1541
f8745e1c
EB		 1542 /* If a TLS symbol is accessed using IE at least once, there is no
1543 point in using the dynamic model for it. */
c20c30f6 1544 if (old_tls_type != tls_type)
22b75d0a 1545 {
c20c30f6
EB		 1546 if (old_tls_type == GOT_UNKNOWN)
1547 ;
1548 else if (old_tls_type == GOT_TLS_GD && tls_type == GOT_TLS_IE)
1549 ;
1550 else if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
22b75d0a
DM		 1551 tls_type = old_tls_type;
1552 else
1553 {
4eca0228 1554 _bfd_error_handler
695344c0 1555 /* xgettext:c-format */
871b3ab2 1556 (_("%pB: `%s' accessed both as normal and thread local symbol"),
22b75d0a
DM		 1557 abfd, h ? h->root.root.string : "<local>");
1558 return FALSE;
1559 }
22b75d0a 1560
22b75d0a
DM		 1561 if (h != NULL)
1562 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1563 else
1564 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1565 }
1566 }
1567
c20c30f6
EB		 1568 if (!htab->elf.sgot
1569 && !_bfd_elf_create_got_section (htab->elf.dynobj, info))
1570 return FALSE;
bb1dd176 1571
07d6d2b8 1572 if (eh != NULL)
f8745e1c
EB		 1573 {
1574 eh->has_got_reloc = 1;
1575 if (r_type == R_SPARC_GOT10
1576 || r_type == R_SPARC_GOT13
1577 || r_type == R_SPARC_GOT22)
1578 eh->has_old_style_got_reloc = 1;
1579 }
22b75d0a
DM		 1580 break;
1581
1582 case R_SPARC_TLS_GD_CALL:
1583 case R_SPARC_TLS_LDM_CALL:
c20c30f6 1584 if (bfd_link_executable (info))
22b75d0a 1585 break;
c20c30f6
EB		 1586
1587 /* Essentially R_SPARC_WPLT30 relocs against __tls_get_addr. */
1588 h = (struct elf_link_hash_entry *)
e513bd38 1589 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
c20c30f6 1590 FALSE, TRUE);
e513bd38 1591 BFD_ASSERT (h != NULL);
22b75d0a
DM		 1592 /* Fall through */
1593
22b75d0a 1594 case R_SPARC_WPLT30:
c20c30f6
EB		 1595 case R_SPARC_PLT32:
1596 case R_SPARC_PLT64:
22b75d0a
DM		 1597 case R_SPARC_HIPLT22:
1598 case R_SPARC_LOPLT10:
1599 case R_SPARC_PCPLT32:
1600 case R_SPARC_PCPLT22:
1601 case R_SPARC_PCPLT10:
c20c30f6
EB		 1602 /* This symbol requires a procedure linkage table entry.
1603 We actually build the entry in adjust_dynamic_symbol,
22b75d0a
DM		 1604 because this might be a case of linking PIC code without
1605 linking in any dynamic objects, in which case we don't
1606 need to generate a procedure linkage table after all. */
1607
1608 if (h == NULL)
1609 {
1610 if (! ABI_64_P (abfd))
1611 {
1612 /* The Solaris native assembler will generate a WPLT30
1613 reloc for a local symbol if you assemble a call from
1614 one section to another when using -K pic. We treat
1615 it as WDISP30. */
c20c30f6 1616 if (r_type == R_SPARC_PLT32)
22b75d0a
DM		 1617 goto r_sparc_plt32;
1618 break;
1619 }
af1fb11f
NC		 1620 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1621 else if (r_type == R_SPARC_WPLT30)
1622 break;
22b75d0a
DM		 1623
1624 /* It does not make sense to have a procedure linkage
07d6d2b8 1625 table entry for a local symbol. */
22b75d0a
DM		 1626 bfd_set_error (bfd_error_bad_value);
1627 return FALSE;
1628 }
1629
1630 h->needs_plt = 1;
1631
c20c30f6
EB		 1632 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
1633 goto r_sparc_plt32;
22b75d0a 1634
22b75d0a 1635 h->plt.refcount += 1;
bb1dd176 1636
07d6d2b8
AM		 1637 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1638 eh->has_got_reloc = 1;
22b75d0a
DM		 1639 break;
1640
1641 case R_SPARC_PC10:
1642 case R_SPARC_PC22:
1643 case R_SPARC_PC_HH22:
1644 case R_SPARC_PC_HM10:
1645 case R_SPARC_PC_LM22:
1646 if (h != NULL)
1647 h->non_got_ref = 1;
1648
1649 if (h != NULL
1650 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1651 break;
1652 /* Fall through. */
1653
1654 case R_SPARC_DISP8:
1655 case R_SPARC_DISP16:
1656 case R_SPARC_DISP32:
1657 case R_SPARC_DISP64:
1658 case R_SPARC_WDISP30:
1659 case R_SPARC_WDISP22:
1660 case R_SPARC_WDISP19:
1661 case R_SPARC_WDISP16:
2615994e 1662 case R_SPARC_WDISP10:
22b75d0a
DM		 1663 case R_SPARC_8:
1664 case R_SPARC_16:
1665 case R_SPARC_32:
1666 case R_SPARC_HI22:
1667 case R_SPARC_22:
1668 case R_SPARC_13:
1669 case R_SPARC_LO10:
1670 case R_SPARC_UA16:
1671 case R_SPARC_UA32:
1672 case R_SPARC_10:
1673 case R_SPARC_11:
1674 case R_SPARC_64:
1675 case R_SPARC_OLO10:
1676 case R_SPARC_HH22:
1677 case R_SPARC_HM10:
1678 case R_SPARC_LM22:
1679 case R_SPARC_7:
1680 case R_SPARC_5:
1681 case R_SPARC_6:
1682 case R_SPARC_HIX22:
1683 case R_SPARC_LOX10:
1684 case R_SPARC_H44:
1685 case R_SPARC_M44:
1686 case R_SPARC_L44:
2615994e 1687 case R_SPARC_H34:
22b75d0a
DM		 1688 case R_SPARC_UA64:
1689 if (h != NULL)
1690 h->non_got_ref = 1;
1691
07d6d2b8
AM		 1692 if (eh != NULL && (sec->flags & SEC_CODE) != 0)
1693 eh->has_non_got_reloc = 1;
bb1dd176 1694
22b75d0a 1695 r_sparc_plt32:
0e1862bb 1696 if (h != NULL && !bfd_link_pic (info))
22b75d0a
DM		 1697 {
1698 /* We may need a .plt entry if the function this reloc
1699 refers to is in a shared lib. */
1700 h->plt.refcount += 1;
1701 }
1702
1703 /* If we are creating a shared library, and this is a reloc
1704 against a global symbol, or a non PC relative reloc
1705 against a local symbol, then we need to copy the reloc
1706 into the shared library. However, if we are linking with
1707 -Bsymbolic, we do not need to copy a reloc against a
1708 global symbol which is defined in an object we are
1709 including in the link (i.e., DEF_REGULAR is set). At
1710 this point we have not seen all the input files, so it is
1711 possible that DEF_REGULAR is not set now but will be set
1712 later (it is never cleared). In case of a weak definition,
1713 DEF_REGULAR may be cleared later by a strong definition in
1714 a shared library. We account for that possibility below by
1715 storing information in the relocs_copied field of the hash
1716 table entry. A similar situation occurs when creating
1717 shared libraries and symbol visibility changes render the
1718 symbol local.
1719
1720 If on the other hand, we are creating an executable, we
1721 may need to keep relocations for symbols satisfied by a
1722 dynamic library if we manage to avoid copy relocs for the
1723 symbol. */
0e1862bb 1724 if ((bfd_link_pic (info)
22b75d0a
DM		 1725 && (sec->flags & SEC_ALLOC) != 0
1726 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1727 || (h != NULL
72fbc6e5 1728 && (! SYMBOLIC_BIND (info, h)
22b75d0a
DM		 1729 || h->root.type == bfd_link_hash_defweak
1730 || !h->def_regular))))
0e1862bb 1731 || (!bfd_link_pic (info)
22b75d0a
DM		 1732 && (sec->flags & SEC_ALLOC) != 0
1733 && h != NULL
1734 && (h->root.type == bfd_link_hash_defweak
d0c9aeb3 1735 || !h->def_regular))
0e1862bb 1736 || (!bfd_link_pic (info)
d0c9aeb3
DM		 1737 && h != NULL
1738 && h->type == STT_GNU_IFUNC))
22b75d0a 1739 {
3bf083ed
AM		 1740 struct elf_dyn_relocs *p;
1741 struct elf_dyn_relocs **head;
22b75d0a
DM		 1742
1743 /* When creating a shared object, we must copy these
1744 relocs into the output file. We create a reloc
1745 section in dynobj and make room for the reloc. */
1746 if (sreloc == NULL)
1747 {
83bac4b0
NC		 1748 sreloc = _bfd_elf_make_dynamic_reloc_section
1749 (sec, htab->elf.dynobj, htab->word_align_power,
1750 abfd, /*rela?*/ TRUE);
1751
22b75d0a 1752 if (sreloc == NULL)
83bac4b0 1753 return FALSE;
22b75d0a
DM		 1754 }
1755
1756 /* If this is a global symbol, we count the number of
1757 relocations we need for this symbol. */
1758 if (h != NULL)
190eb1dd 1759 head = &h->dyn_relocs;
22b75d0a
DM		 1760 else
1761 {
1762 /* Track dynamic relocs needed for local syms too.
1763 We really need local syms available to do this
1764 easily. Oh well. */
22b75d0a 1765 asection *s;
6edfbbad 1766 void *vpp;
22b75d0a 1767
d0c9aeb3 1768 BFD_ASSERT (isym != NULL);
87d72d41
AM		 1769 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1770 if (s == NULL)
1771 s = sec;
1772
6edfbbad 1773 vpp = &elf_section_data (s)->local_dynrel;
3bf083ed 1774 head = (struct elf_dyn_relocs **) vpp;
22b75d0a
DM		 1775 }
1776
1777 p = *head;
1778 if (p == NULL || p->sec != sec)
1779 {
986f0783 1780 size_t amt = sizeof *p;
3bf083ed 1781 p = ((struct elf_dyn_relocs *)
22b75d0a
DM		 1782 bfd_alloc (htab->elf.dynobj, amt));
1783 if (p == NULL)
1784 return FALSE;
1785 p->next = *head;
1786 *head = p;
1787 p->sec = sec;
1788 p->count = 0;
1789 p->pc_count = 0;
1790 }
1791
1792 p->count += 1;
1793 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1794 p->pc_count += 1;
1795 }
1796
1797 break;
1798
1799 case R_SPARC_GNU_VTINHERIT:
1800 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1801 return FALSE;
1802 break;
1803
1804 case R_SPARC_GNU_VTENTRY:
a0ea3a14 1805 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
22b75d0a
DM		 1806 return FALSE;
1807 break;
1808
1809 case R_SPARC_REGISTER:
1810 /* Nothing to do. */
1811 break;
1812
1813 default:
1814 break;
1815 }
1816 }
1817
1818 return TRUE;
1819}
1820\f
1821asection *
1822_bfd_sparc_elf_gc_mark_hook (asection *sec,
1823 struct bfd_link_info *info,
1824 Elf_Internal_Rela *rel,
1825 struct elf_link_hash_entry *h,
1826 Elf_Internal_Sym *sym)
1827{
1828 if (h != NULL)
07adf181 1829 switch (SPARC_ELF_R_TYPE (rel->r_info))
22b75d0a
DM		 1830 {
1831 case R_SPARC_GNU_VTINHERIT:
1832 case R_SPARC_GNU_VTENTRY:
07adf181 1833 return NULL;
22b75d0a 1834 }
22b75d0a 1835
c20c30f6 1836 if (!bfd_link_executable (info))
b45b6908
AM		 1837 {
1838 switch (SPARC_ELF_R_TYPE (rel->r_info))
1839 {
1840 case R_SPARC_TLS_GD_CALL:
1841 case R_SPARC_TLS_LDM_CALL:
1842 /* This reloc implicitly references __tls_get_addr. We know
1843 another reloc will reference the same symbol as the one
1844 on this reloc, so the real symbol and section will be
1845 gc marked when processing the other reloc. That lets
1846 us handle __tls_get_addr here. */
1847 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1848 FALSE, FALSE, TRUE);
1849 BFD_ASSERT (h != NULL);
1850 h->mark = 1;
60d67dc8
AM		 1851 if (h->is_weakalias)
1852 weakdef (h)->mark = 1;
b45b6908
AM		 1853 sym = NULL;
1854 }
1855 }
1856
07adf181 1857 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
22b75d0a
DM		 1858}
1859
abd242a9
DM		 1860static Elf_Internal_Rela *
1861sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
1862 Elf_Internal_Rela *relend,
1863 bfd_vma offset)
1864{
1865 while (rel < relend)
1866 {
1867 if (rel->r_offset == offset)
1868 return rel;
1869 rel++;
1870 }
1871 return NULL;
1872}
1873
bb1dd176
QZ		 1874/* Remove undefined weak symbol from the dynamic symbol table if it
1875 is resolved to 0. */
1876
1877bfd_boolean
1878_bfd_sparc_elf_fixup_symbol (struct bfd_link_info *info,
07d6d2b8 1879 struct elf_link_hash_entry *h)
bb1dd176
QZ		 1880{
1881 if (h->dynindx != -1
1882 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
07d6d2b8 1883 _bfd_sparc_elf_hash_entry (h)))
bb1dd176
QZ		 1884 {
1885 h->dynindx = -1;
1886 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
07d6d2b8 1887 h->dynstr_index);
bb1dd176
QZ		 1888 }
1889 return TRUE;
1890}
1891
22b75d0a
DM		 1892/* Adjust a symbol defined by a dynamic object and referenced by a
1893 regular object. The current definition is in some section of the
1894 dynamic object, but we're not including those sections. We have to
1895 change the definition to something the rest of the link can
1896 understand. */
1897
1898bfd_boolean
1899_bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1900 struct elf_link_hash_entry *h)
1901{
1902 struct _bfd_sparc_elf_link_hash_table *htab;
5474d94f 1903 asection *s, *srel;
22b75d0a
DM		 1904
1905 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1906 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 1907
1908 /* Make sure we know what is going on here. */
1909 BFD_ASSERT (htab->elf.dynobj != NULL
1910 && (h->needs_plt
d0c9aeb3 1911 || h->type == STT_GNU_IFUNC
60d67dc8 1912 || h->is_weakalias
22b75d0a
DM		 1913 || (h->def_dynamic
1914 && h->ref_regular
1915 && !h->def_regular)));
1916
1917 /* If this is a function, put it in the procedure linkage table. We
1918 will fill in the contents of the procedure linkage table later
1919 (although we could actually do it here). The STT_NOTYPE
1920 condition is a hack specifically for the Oracle libraries
1921 delivered for Solaris; for some inexplicable reason, they define
1922 some of their functions as STT_NOTYPE when they really should be
1923 STT_FUNC. */
1924 if (h->type == STT_FUNC
d0c9aeb3 1925 || h->type == STT_GNU_IFUNC
22b75d0a
DM		 1926 || h->needs_plt
1927 || (h->type == STT_NOTYPE
1928 && (h->root.type == bfd_link_hash_defined
1929 || h->root.type == bfd_link_hash_defweak)
1930 && (h->root.u.def.section->flags & SEC_CODE) != 0))
1931 {
1932 if (h->plt.refcount <= 0
d0c9aeb3
DM		 1933 || (h->type != STT_GNU_IFUNC
1934 && (SYMBOL_CALLS_LOCAL (info, h)
a8735c82
EB		 1935 || (h->root.type == bfd_link_hash_undefweak
1936 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT))))
22b75d0a
DM		 1937 {
1938 /* This case can occur if we saw a WPLT30 reloc in an input
1939 file, but the symbol was never referred to by a dynamic
1940 object, or if all references were garbage collected. In
1941 such a case, we don't actually need to build a procedure
1942 linkage table, and we can just do a WDISP30 reloc instead. */
1943 h->plt.offset = (bfd_vma) -1;
1944 h->needs_plt = 0;
1945 }
1946
1947 return TRUE;
1948 }
1949 else
1950 h->plt.offset = (bfd_vma) -1;
1951
1952 /* If this is a weak symbol, and there is a real definition, the
1953 processor independent code will have arranged for us to see the
1954 real definition first, and we can just use the same value. */
60d67dc8 1955 if (h->is_weakalias)
22b75d0a 1956 {
60d67dc8
AM		 1957 struct elf_link_hash_entry *def = weakdef (h);
1958 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1959 h->root.u.def.section = def->root.u.def.section;
1960 h->root.u.def.value = def->root.u.def.value;
22b75d0a
DM		 1961 return TRUE;
1962 }
1963
1964 /* This is a reference to a symbol defined by a dynamic object which
1965 is not a function. */
1966
1967 /* If we are creating a shared library, we must presume that the
1968 only references to the symbol are via the global offset table.
1969 For such cases we need not do anything here; the relocations will
1970 be handled correctly by relocate_section. */
0e1862bb 1971 if (bfd_link_pic (info))
22b75d0a
DM		 1972 return TRUE;
1973
1974 /* If there are no references to this symbol that do not use the
1975 GOT, we don't need to generate a copy reloc. */
1976 if (!h->non_got_ref)
1977 return TRUE;
1978
72fbc6e5
DM		 1979 /* If -z nocopyreloc was given, we won't generate them either. */
1980 if (info->nocopyreloc)
1981 {
1982 h->non_got_ref = 0;
1983 return TRUE;
1984 }
1985
3bf083ed 1986 /* If we don't find any dynamic relocs in read-only sections, then
22b75d0a 1987 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
5dbc8b37 1988 if (!_bfd_elf_readonly_dynrelocs (h))
22b75d0a
DM		 1989 {
1990 h->non_got_ref = 0;
1991 return TRUE;
1992 }
1993
1994 /* We must allocate the symbol in our .dynbss section, which will
1995 become part of the .bss section of the executable. There will be
1996 an entry for this symbol in the .dynsym section. The dynamic
1997 object will contain position independent code, so all references
1998 from the dynamic object to this symbol will go through the global
1999 offset table. The dynamic linker will use the .dynsym entry to
2000 determine the address it must put in the global offset table, so
2001 both the dynamic object and the regular object will refer to the
2002 same memory location for the variable. */
2003
2004 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2005 to copy the initial value out of the dynamic object and into the
2006 runtime process image. We need to remember the offset into the
2007 .rel.bss section we are going to use. */
5474d94f
AM		 2008 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2009 {
2010 s = htab->elf.sdynrelro;
2011 srel = htab->elf.sreldynrelro;
2012 }
2013 else
2014 {
2015 s = htab->elf.sdynbss;
2016 srel = htab->elf.srelbss;
2017 }
1d7e9d18 2018 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
22b75d0a 2019 {
5474d94f 2020 srel->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2021 h->needs_copy = 1;
2022 }
2023
6cabe1ea 2024 return _bfd_elf_adjust_dynamic_copy (info, h, s);
22b75d0a
DM		 2025}
2026
2027/* Allocate space in .plt, .got and associated reloc sections for
2028 dynamic relocs. */
2029
2030static bfd_boolean
2c3fc389 2031allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
22b75d0a
DM		 2032{
2033 struct bfd_link_info *info;
2034 struct _bfd_sparc_elf_link_hash_table *htab;
2035 struct _bfd_sparc_elf_link_hash_entry *eh;
3bf083ed 2036 struct elf_dyn_relocs *p;
bb1dd176 2037 bfd_boolean resolved_to_zero;
22b75d0a
DM		 2038
2039 if (h->root.type == bfd_link_hash_indirect)
2040 return TRUE;
2041
22b75d0a
DM		 2042 info = (struct bfd_link_info *) inf;
2043 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2044 BFD_ASSERT (htab != NULL);
22b75d0a 2045
bb1dd176
QZ		 2046 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2047 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
2048
d0c9aeb3
DM		 2049 if ((htab->elf.dynamic_sections_created
2050 && h->plt.refcount > 0)
2051 || (h->type == STT_GNU_IFUNC
b48ca1d4
DM		 2052 && h->def_regular
2053 && h->ref_regular))
22b75d0a 2054 {
a8735c82
EB		 2055 /* Undefined weak syms won't yet be marked as dynamic. */
2056 if (h->root.type == bfd_link_hash_undefweak
07d6d2b8 2057 && !resolved_to_zero
a8735c82
EB		 2058 && h->dynindx == -1
2059 && !h->forced_local)
22b75d0a
DM		 2060 {
2061 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2062 return FALSE;
2063 }
2064
0e1862bb 2065 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
b48ca1d4
DM		 2066 || (h->type == STT_GNU_IFUNC
2067 && h->def_regular))
22b75d0a 2068 {
72fbc6e5 2069 asection *s = htab->elf.splt;
22b75d0a 2070
d0c9aeb3
DM		 2071 if (s == NULL)
2072 s = htab->elf.iplt;
2073
910600e9 2074 /* Allocate room for the header. */
22b75d0a 2075 if (s->size == 0)
910600e9
RS		 2076 {
2077 s->size = htab->plt_header_size;
2078
2079 /* Allocate space for the .rela.plt.unloaded relocations. */
90c14f0c
L		 2080 if (htab->elf.target_os == is_vxworks
2081 && !bfd_link_pic (info))
910600e9
RS		 2082 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2083 }
22b75d0a
DM		 2084
2085 /* The procedure linkage table size is bounded by the magnitude
2086 of the offset we can describe in the entry. */
2087 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
e8be8da4 2088 (((bfd_vma)1 << 31) << 1) : 0x400000))
22b75d0a
DM		 2089 {
2090 bfd_set_error (bfd_error_bad_value);
2091 return FALSE;
2092 }
2093
2094 if (SPARC_ELF_WORD_BYTES(htab) == 8
2095 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2096 {
2097 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2098
2099
2100 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2101
2102 h->plt.offset = (s->size - (off * 8));
2103 }
2104 else
2105 h->plt.offset = s->size;
2106
2107 /* If this symbol is not defined in a regular file, and we are
2108 not generating a shared library, then set the symbol to this
2109 location in the .plt. This is required to make function
2110 pointers compare as equal between the normal executable and
2111 the shared library. */
0e1862bb 2112 if (! bfd_link_pic (info)
22b75d0a
DM		 2113 && !h->def_regular)
2114 {
2115 h->root.u.def.section = s;
2116 h->root.u.def.value = h->plt.offset;
2117 }
2118
2119 /* Make room for this entry. */
910600e9 2120 s->size += htab->plt_entry_size;
22b75d0a 2121
07d6d2b8
AM		 2122 /* There should be no PLT relocations against resolved undefined
2123 weak symbols in the executable. */
2124 if (!resolved_to_zero)
2125 {
bb1dd176
QZ		 2126 /* We also need to make an entry in the .rela.plt section. */
2127 if (s == htab->elf.splt)
07d6d2b8 2128 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
bb1dd176 2129 else
07d6d2b8
AM		 2130 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
2131 }
910600e9 2132
90c14f0c 2133 if (htab->elf.target_os == is_vxworks)
910600e9
RS		 2134 {
2135 /* Allocate space for the .got.plt entry. */
72fbc6e5 2136 htab->elf.sgotplt->size += 4;
910600e9
RS		 2137
2138 /* ...and for the .rela.plt.unloaded relocations. */
0e1862bb 2139 if (!bfd_link_pic (info))
910600e9
RS		 2140 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2141 }
22b75d0a
DM		 2142 }
2143 else
2144 {
2145 h->plt.offset = (bfd_vma) -1;
2146 h->needs_plt = 0;
2147 }
2148 }
2149 else
2150 {
2151 h->plt.offset = (bfd_vma) -1;
2152 h->needs_plt = 0;
2153 }
2154
2155 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2156 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2157 if (h->got.refcount > 0
c20c30f6 2158 && bfd_link_executable (info)
22b75d0a
DM		 2159 && h->dynindx == -1
2160 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2161 h->got.offset = (bfd_vma) -1;
2162 else if (h->got.refcount > 0)
2163 {
2164 asection *s;
2165 bfd_boolean dyn;
2166 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2167
a8735c82
EB		 2168 /* Undefined weak syms won't yet be marked as dynamic. */
2169 if (h->root.type == bfd_link_hash_undefweak
07d6d2b8 2170 && !resolved_to_zero
a8735c82
EB		 2171 && h->dynindx == -1
2172 && !h->forced_local)
22b75d0a
DM		 2173 {
2174 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2175 return FALSE;
2176 }
2177
72fbc6e5 2178 s = htab->elf.sgot;
22b75d0a
DM		 2179 h->got.offset = s->size;
2180 s->size += SPARC_ELF_WORD_BYTES (htab);
2181 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2182 if (tls_type == GOT_TLS_GD)
2183 s->size += SPARC_ELF_WORD_BYTES (htab);
2184 dyn = htab->elf.dynamic_sections_created;
2185 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
a8735c82 2186 R_SPARC_TLS_GD_{HI22,LO10} needs one if local and two if global. */
22b75d0a 2187 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
d0c9aeb3
DM		 2188 || tls_type == GOT_TLS_IE
2189 || h->type == STT_GNU_IFUNC)
72fbc6e5 2190 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a 2191 else if (tls_type == GOT_TLS_GD)
72fbc6e5 2192 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
a8735c82
EB		 2193 else if ((WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)
2194 /* Even if the symbol isn't dynamic, we may generate a
2195 reloc for the dynamic linker in PIC mode. */
2196 || (h->dynindx == -1
2197 && !h->forced_local
2198 && h->root.type != bfd_link_hash_undefweak
2199 && bfd_link_pic (info)))
2200 /* No dynamic relocations are needed against resolved
2201 undefined weak symbols in an executable. */
2202 && !(h->root.type == bfd_link_hash_undefweak
2203 && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2204 || resolved_to_zero)))
72fbc6e5 2205 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2206 }
2207 else
2208 h->got.offset = (bfd_vma) -1;
2209
190eb1dd 2210 if (h->dyn_relocs == NULL)
22b75d0a
DM		 2211 return TRUE;
2212
2213 /* In the shared -Bsymbolic case, discard space allocated for
2214 dynamic pc-relative relocs against symbols which turn out to be
2215 defined in regular objects. For the normal shared case, discard
2216 space for pc-relative relocs that have become local due to symbol
2217 visibility changes. */
2218
0e1862bb 2219 if (bfd_link_pic (info))
22b75d0a 2220 {
72fbc6e5 2221 if (SYMBOL_CALLS_LOCAL (info, h))
22b75d0a 2222 {
3bf083ed 2223 struct elf_dyn_relocs **pp;
22b75d0a 2224
190eb1dd 2225 for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
22b75d0a
DM		 2226 {
2227 p->count -= p->pc_count;
2228 p->pc_count = 0;
2229 if (p->count == 0)
2230 *pp = p->next;
2231 else
2232 pp = &p->next;
2233 }
2234 }
22d606e9 2235
90c14f0c 2236 if (htab->elf.target_os == is_vxworks)
3348747a 2237 {
3bf083ed 2238 struct elf_dyn_relocs **pp;
3348747a 2239
190eb1dd 2240 for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
3348747a
NS		 2241 {
2242 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2243 *pp = p->next;
2244 else
2245 pp = &p->next;
2246 }
2247 }
2248
22d606e9 2249 /* Also discard relocs on undefined weak syms with non-default
bb1dd176 2250 visibility or in PIE. */
190eb1dd 2251 if (h->dyn_relocs != NULL
22d606e9
AM		 2252 && h->root.type == bfd_link_hash_undefweak)
2253 {
07d6d2b8 2254 /* An undefined weak symbol is never
bb1dd176
QZ		 2255 bound locally in a shared library. */
2256
2257 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
07d6d2b8
AM		 2258 || resolved_to_zero)
2259 {
2260 if (h->non_got_ref)
2261 {
2262 /* Keep dynamic non-GOT/non-PLT relocation so that we
2263 can branch to 0 without PLT. */
2264 struct elf_dyn_relocs **pp;
2265
190eb1dd 2266 for (pp = &h->dyn_relocs; (p = *pp) != NULL;)
07d6d2b8
AM		 2267 if (p->pc_count == 0)
2268 *pp = p->next;
2269 else
2270 {
2271 /* Remove other relocations. */
2272 p->count = p->pc_count;
2273 pp = &p->next;
2274 }
2275
190eb1dd 2276 if (h->dyn_relocs != NULL)
07d6d2b8
AM		 2277 {
2278 /* Make sure undefined weak symbols are output
2279 as dynamic symbols in PIEs for dynamic non-GOT
2280 non-PLT reloations. */
2281 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2282 return FALSE;
2283 }
2284 }
2285 else
190eb1dd 2286 h->dyn_relocs = NULL;
07d6d2b8 2287 }
22d606e9
AM		 2288
2289 /* Make sure undefined weak symbols are output as a dynamic
2290 symbol in PIEs. */
2291 else if (h->dynindx == -1
2292 && !h->forced_local)
2293 {
2294 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2295 return FALSE;
2296 }
2297 }
22b75d0a
DM		 2298 }
2299 else
2300 {
2301 /* For the non-shared case, discard space for relocs against
2302 symbols which turn out to need copy relocs or are not
2303 dynamic. */
2304
bb1dd176 2305 if ((!h->non_got_ref
07d6d2b8
AM		 2306 || (h->root.type == bfd_link_hash_undefweak
2307 && !resolved_to_zero))
22b75d0a
DM		 2308 && ((h->def_dynamic
2309 && !h->def_regular)
2310 || (htab->elf.dynamic_sections_created
2311 && (h->root.type == bfd_link_hash_undefweak
2312 || h->root.type == bfd_link_hash_undefined))))
2313 {
a8735c82
EB		 2314 /* Undefined weak syms won't yet be marked as dynamic. */
2315 if (h->root.type == bfd_link_hash_undefweak
07d6d2b8 2316 && !resolved_to_zero
a8735c82
EB		 2317 && h->dynindx == -1
2318 && !h->forced_local)
22b75d0a
DM		 2319 {
2320 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2321 return FALSE;
2322 }
2323
2324 /* If that succeeded, we know we'll be keeping all the
2325 relocs. */
2326 if (h->dynindx != -1)
2327 goto keep;
2328 }
2329
190eb1dd 2330 h->dyn_relocs = NULL;
22b75d0a
DM		 2331
2332 keep: ;
2333 }
2334
2335 /* Finally, allocate space. */
190eb1dd 2336 for (p = h->dyn_relocs; p != NULL; p = p->next)
22b75d0a
DM		 2337 {
2338 asection *sreloc = elf_section_data (p->sec)->sreloc;
2339 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2340 }
2341
2342 return TRUE;
2343}
2344
d0c9aeb3
DM		 2345/* Allocate space in .plt, .got and associated reloc sections for
2346 local dynamic relocs. */
2347
2348static bfd_boolean
2349allocate_local_dynrelocs (void **slot, void *inf)
2350{
2351 struct elf_link_hash_entry *h
2352 = (struct elf_link_hash_entry *) *slot;
2353
2354 if (h->type != STT_GNU_IFUNC
2355 || !h->def_regular
2356 || !h->ref_regular
2357 || !h->forced_local
2358 || h->root.type != bfd_link_hash_defined)
2359 abort ();
2360
2361 return allocate_dynrelocs (h, inf);
2362}
2363
22b75d0a
DM		 2364/* Return true if the dynamic symbol for a given section should be
2365 omitted when creating a shared library. */
2366
2367bfd_boolean
2368_bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2369 struct bfd_link_info *info,
2370 asection *p)
2371{
2372 /* We keep the .got section symbol so that explicit relocations
2373 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2374 can be turned into relocations against the .got symbol. */
2375 if (strcmp (p->name, ".got") == 0)
2376 return FALSE;
2377
d00dd7dc 2378 return _bfd_elf_omit_section_dynsym_default (output_bfd, info, p);
22b75d0a
DM		 2379}
2380
2381/* Set the sizes of the dynamic sections. */
2382
2383bfd_boolean
2384_bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2385 struct bfd_link_info *info)
2386{
2387 struct _bfd_sparc_elf_link_hash_table *htab;
2388 bfd *dynobj;
2389 asection *s;
2390 bfd *ibfd;
2391
2392 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2393 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 2394 dynobj = htab->elf.dynobj;
2395 BFD_ASSERT (dynobj != NULL);
2396
2397 if (elf_hash_table (info)->dynamic_sections_created)
2398 {
2399 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2400 if (bfd_link_executable (info) && !info->nointerp)
07d6d2b8
AM		 2401 {
2402 s = bfd_get_linker_section (dynobj, ".interp");
2403 BFD_ASSERT (s != NULL);
2404 s->size = htab->dynamic_interpreter_size;
2405 s->contents = (unsigned char *) htab->dynamic_interpreter;
2406 htab->interp = s;
2407 }
22b75d0a
DM		 2408 }
2409
2410 /* Set up .got offsets for local syms, and space for local dynamic
2411 relocs. */
c72f2fb2 2412 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
22b75d0a
DM		 2413 {
2414 bfd_signed_vma *local_got;
2415 bfd_signed_vma *end_local_got;
2416 char *local_tls_type;
2417 bfd_size_type locsymcount;
2418 Elf_Internal_Shdr *symtab_hdr;
2419 asection *srel;
2420
0ffa91dd 2421 if (! is_sparc_elf (ibfd))
22b75d0a
DM		 2422 continue;
2423
2424 for (s = ibfd->sections; s != NULL; s = s->next)
2425 {
3bf083ed 2426 struct elf_dyn_relocs *p;
22b75d0a 2427
6edfbbad 2428 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
22b75d0a
DM		 2429 {
2430 if (!bfd_is_abs_section (p->sec)
2431 && bfd_is_abs_section (p->sec->output_section))
2432 {
2433 /* Input section has been discarded, either because
2434 it is a copy of a linkonce section or due to
2435 linker script /DISCARD/, so we'll be discarding
2436 the relocs too. */
2437 }
90c14f0c 2438 else if (htab->elf.target_os == is_vxworks
3348747a
NS		 2439 && strcmp (p->sec->output_section->name,
2440 ".tls_vars") == 0)
2441 {
2442 /* Relocations in vxworks .tls_vars sections are
2443 handled specially by the loader. */
2444 }
22b75d0a
DM		 2445 else if (p->count != 0)
2446 {
2447 srel = elf_section_data (p->sec)->sreloc;
d0c9aeb3
DM		 2448 if (!htab->elf.dynamic_sections_created)
2449 srel = htab->elf.irelplt;
22b75d0a
DM		 2450 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2451 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
f0f07ad1
L		 2452 {
2453 info->flags |= DF_TEXTREL;
871b3ab2 2454 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
f0f07ad1
L		 2455 p->sec->owner, p->sec);
2456 }
22b75d0a
DM		 2457 }
2458 }
2459 }
2460
2461 local_got = elf_local_got_refcounts (ibfd);
2462 if (!local_got)
2463 continue;
2464
0ffa91dd 2465 symtab_hdr = &elf_symtab_hdr (ibfd);
22b75d0a
DM		 2466 locsymcount = symtab_hdr->sh_info;
2467 end_local_got = local_got + locsymcount;
2468 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
72fbc6e5
DM		 2469 s = htab->elf.sgot;
2470 srel = htab->elf.srelgot;
22b75d0a
DM		 2471 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2472 {
2473 if (*local_got > 0)
2474 {
2475 *local_got = s->size;
2476 s->size += SPARC_ELF_WORD_BYTES (htab);
2477 if (*local_tls_type == GOT_TLS_GD)
2478 s->size += SPARC_ELF_WORD_BYTES (htab);
0e1862bb 2479 if (bfd_link_pic (info)
22b75d0a
DM		 2480 || *local_tls_type == GOT_TLS_GD
2481 || *local_tls_type == GOT_TLS_IE)
2482 srel->size += SPARC_ELF_RELA_BYTES (htab);
2483 }
2484 else
2485 *local_got = (bfd_vma) -1;
2486 }
2487 }
2488
2489 if (htab->tls_ldm_got.refcount > 0)
2490 {
2491 /* Allocate 2 got entries and 1 dynamic reloc for
2492 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
72fbc6e5
DM		 2493 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2494 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2495 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2496 }
2497 else
2498 htab->tls_ldm_got.offset = -1;
2499
2500 /* Allocate global sym .plt and .got entries, and space for global
2501 sym dynamic relocs. */
2c3fc389 2502 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
22b75d0a 2503
d0c9aeb3
DM		 2504 /* Allocate .plt and .got entries, and space for local symbols. */
2505 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2506
0fc9967d 2507 if (! ABI_64_P (output_bfd)
90c14f0c 2508 && htab->elf.target_os != is_vxworks
22b75d0a
DM		 2509 && elf_hash_table (info)->dynamic_sections_created)
2510 {
0fc9967d
JM		 2511 /* Make space for the trailing nop in .plt. */
2512 if (htab->elf.splt->size > 0)
2513 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
22b75d0a
DM		 2514
2515 /* If the .got section is more than 0x1000 bytes, we add
2516 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
0fc9967d
JM		 2517 bit relocations have a greater chance of working.
2518
2519 FIXME: Make this optimization work for 64-bit too. */
72fbc6e5 2520 if (htab->elf.sgot->size >= 0x1000
22b75d0a
DM		 2521 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2522 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2523 }
2524
2525 /* The check_relocs and adjust_dynamic_symbol entry points have
2526 determined the sizes of the various dynamic sections. Allocate
2527 memory for them. */
2528 for (s = dynobj->sections; s != NULL; s = s->next)
2529 {
22b75d0a
DM		 2530 if ((s->flags & SEC_LINKER_CREATED) == 0)
2531 continue;
2532
72fbc6e5
DM		 2533 if (s == htab->elf.splt
2534 || s == htab->elf.sgot
9d19e4fd 2535 || s == htab->elf.sdynbss
5474d94f 2536 || s == htab->elf.sdynrelro
d0c9aeb3 2537 || s == htab->elf.iplt
72fbc6e5 2538 || s == htab->elf.sgotplt)
22b75d0a 2539 {
c456f082
AM		 2540 /* Strip this section if we don't need it; see the
2541 comment below. */
2542 }
0112cd26 2543 else if (CONST_STRNEQ (s->name, ".rela"))
c456f082
AM		 2544 {
2545 if (s->size != 0)
22b75d0a
DM		 2546 {
2547 /* We use the reloc_count field as a counter if we need
2548 to copy relocs into the output file. */
2549 s->reloc_count = 0;
2550 }
2551 }
c456f082 2552 else
22b75d0a 2553 {
c456f082 2554 /* It's not one of our sections. */
22b75d0a
DM		 2555 continue;
2556 }
2557
c456f082 2558 if (s->size == 0)
22b75d0a 2559 {
c456f082
AM		 2560 /* If we don't need this section, strip it from the
2561 output file. This is mostly to handle .rela.bss and
2562 .rela.plt. We must create both sections in
2563 create_dynamic_sections, because they must be created
2564 before the linker maps input sections to output
2565 sections. The linker does that before
2566 adjust_dynamic_symbol is called, and it is that
2567 function which decides whether anything needs to go
2568 into these sections. */
8423293d 2569 s->flags |= SEC_EXCLUDE;
22b75d0a
DM		 2570 continue;
2571 }
2572
c456f082
AM		 2573 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2574 continue;
2575
22b75d0a
DM		 2576 /* Allocate memory for the section contents. Zero the memory
2577 for the benefit of .rela.plt, which has 4 unused entries
2578 at the beginning, and we don't want garbage. */
2579 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
c456f082 2580 if (s->contents == NULL)
22b75d0a
DM		 2581 return FALSE;
2582 }
2583
2584 if (elf_hash_table (info)->dynamic_sections_created)
2585 {
2586 /* Add some entries to the .dynamic section. We fill in the
2587 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2588 must add the entries now so that we get the correct size for
2589 the .dynamic section. The DT_DEBUG entry is filled in by the
2590 dynamic linker and used by the debugger. */
2591#define add_dynamic_entry(TAG, VAL) \
2592 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2593
3084d7a2
L		 2594 if (!_bfd_elf_maybe_vxworks_add_dynamic_tags (output_bfd, info,
2595 TRUE))
22b75d0a
DM		 2596 return FALSE;
2597
22b75d0a
DM		 2598 if (ABI_64_P (output_bfd))
2599 {
2600 int reg;
2601 struct _bfd_sparc_elf_app_reg * app_regs;
2602 struct elf_strtab_hash *dynstr;
2603 struct elf_link_hash_table *eht = elf_hash_table (info);
2604
2605 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2606 entries if needed. */
2607 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2608 dynstr = eht->dynstr;
2609
2610 for (reg = 0; reg < 4; reg++)
2611 if (app_regs [reg].name != NULL)
2612 {
2613 struct elf_link_local_dynamic_entry *entry, *e;
2614
2615 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2616 return FALSE;
2617
2618 entry = (struct elf_link_local_dynamic_entry *)
2619 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2620 if (entry == NULL)
2621 return FALSE;
2622
2623 /* We cheat here a little bit: the symbol will not be local, so we
2624 put it at the end of the dynlocal linked list. We will fix it
2625 later on, as we have to fix other fields anyway. */
2626 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2627 entry->isym.st_size = 0;
2628 if (*app_regs [reg].name != '\0')
2629 entry->isym.st_name
2630 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2631 else
2632 entry->isym.st_name = 0;
2633 entry->isym.st_other = 0;
2634 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2635 STT_REGISTER);
2636 entry->isym.st_shndx = app_regs [reg].shndx;
35fc36a8 2637 entry->isym.st_target_internal = 0;
22b75d0a
DM		 2638 entry->next = NULL;
2639 entry->input_bfd = output_bfd;
2640 entry->input_indx = -1;
2641
2642 if (eht->dynlocal == NULL)
2643 eht->dynlocal = entry;
2644 else
2645 {
2646 for (e = eht->dynlocal; e->next; e = e->next)
2647 ;
2648 e->next = entry;
2649 }
2650 eht->dynsymcount++;
2651 }
2652 }
2653 }
2654#undef add_dynamic_entry
2655
2656 return TRUE;
2657}
2658\f
2659bfd_boolean
2660_bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2661{
f592407e
AM		 2662 if (!sec->used_by_bfd)
2663 {
2664 struct _bfd_sparc_elf_section_data *sdata;
986f0783 2665 size_t amt = sizeof (*sdata);
22b75d0a 2666
f592407e
AM		 2667 sdata = bfd_zalloc (abfd, amt);
2668 if (sdata == NULL)
2669 return FALSE;
2670 sec->used_by_bfd = sdata;
2671 }
22b75d0a
DM		 2672
2673 return _bfd_elf_new_section_hook (abfd, sec);
2674}
2675
2676bfd_boolean
2677_bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2678 struct bfd_section *section,
2679 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2680 bfd_boolean *again)
2681{
0e1862bb 2682 if (bfd_link_relocatable (link_info))
c8a1f254
NS		 2683 (*link_info->callbacks->einfo)
2684 (_("%P%F: --relax and -r may not be used together\n"));
2685
22b75d0a
DM		 2686 *again = FALSE;
2687 sec_do_relax (section) = 1;
2688 return TRUE;
2689}
2690\f
2691/* Return the base VMA address which should be subtracted from real addresses
2692 when resolving @dtpoff relocation.
2693 This is PT_TLS segment p_vaddr. */
2694
2695static bfd_vma
2696dtpoff_base (struct bfd_link_info *info)
2697{
2698 /* If tls_sec is NULL, we should have signalled an error already. */
2699 if (elf_hash_table (info)->tls_sec == NULL)
2700 return 0;
2701 return elf_hash_table (info)->tls_sec->vma;
2702}
2703
2704/* Return the relocation value for @tpoff relocation
2705 if STT_TLS virtual address is ADDRESS. */
2706
2707static bfd_vma
2708tpoff (struct bfd_link_info *info, bfd_vma address)
2709{
2710 struct elf_link_hash_table *htab = elf_hash_table (info);
1360ba76
RO		 2711 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
2712 bfd_vma static_tls_size;
22b75d0a
DM		 2713
2714 /* If tls_sec is NULL, we should have signalled an error already. */
2715 if (htab->tls_sec == NULL)
2716 return 0;
1360ba76
RO		 2717
2718 /* Consider special static TLS alignment requirements. */
2719 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
2720 return address - static_tls_size - htab->tls_sec->vma;
22b75d0a
DM		 2721}
2722
00c50991
DM		 2723/* Return the relocation value for a %gdop relocation. */
2724
2725static bfd_vma
2726gdopoff (struct bfd_link_info *info, bfd_vma address)
2727{
2728 struct elf_link_hash_table *htab = elf_hash_table (info);
2729 bfd_vma got_base;
2730
2731 got_base = (htab->hgot->root.u.def.value
2732 + htab->hgot->root.u.def.section->output_offset
2733 + htab->hgot->root.u.def.section->output_section->vma);
2734
2735 return address - got_base;
2736}
2737
5b86074c
AM		 2738/* Return whether H is local and its ADDRESS is within 4G of
2739 _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
2740 sethi, xor sequence. */
2741
2742static bfd_boolean
2743gdop_relative_offset_ok (struct bfd_link_info *info,
2744 struct elf_link_hash_entry *h,
2745 bfd_vma address ATTRIBUTE_UNUSED)
2746{
2747 if (!SYMBOL_REFERENCES_LOCAL (info, h))
2748 return FALSE;
2749 /* If H is undefined, ADDRESS will be zero. We can't allow a
2750 relative offset to "zero" when producing PIEs or shared libs.
2751 Note that to get here with an undefined symbol it must also be
2752 hidden or internal visibility. */
2753 if (bfd_link_pic (info)
2754 && h != NULL
2755 && (h->root.type == bfd_link_hash_undefweak
2756 || h->root.type == bfd_link_hash_undefined))
2757 return FALSE;
2758#ifdef BFD64
2759 return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
2760#else
2761 return TRUE;
2762#endif
2763}
2764
22b75d0a
DM		 2765/* Relocate a SPARC ELF section. */
2766
2767bfd_boolean
ab96bf03
AM		 2768_bfd_sparc_elf_relocate_section (bfd *output_bfd,
2769 struct bfd_link_info *info,
2770 bfd *input_bfd,
2771 asection *input_section,
2772 bfd_byte *contents,
2773 Elf_Internal_Rela *relocs,
2774 Elf_Internal_Sym *local_syms,
2775 asection **local_sections)
22b75d0a
DM		 2776{
2777 struct _bfd_sparc_elf_link_hash_table *htab;
2778 Elf_Internal_Shdr *symtab_hdr;
2779 struct elf_link_hash_entry **sym_hashes;
2780 bfd_vma *local_got_offsets;
2781 bfd_vma got_base;
2782 asection *sreloc;
2783 Elf_Internal_Rela *rel;
2784 Elf_Internal_Rela *relend;
2785 int num_relocs;
3348747a 2786 bfd_boolean is_vxworks_tls;
22b75d0a 2787
22b75d0a 2788 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2789 BFD_ASSERT (htab != NULL);
0ffa91dd 2790 symtab_hdr = &elf_symtab_hdr (input_bfd);
22b75d0a
DM		 2791 sym_hashes = elf_sym_hashes (input_bfd);
2792 local_got_offsets = elf_local_got_offsets (input_bfd);
2793
2794 if (elf_hash_table (info)->hgot == NULL)
2795 got_base = 0;
2796 else
2797 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2798
2799 sreloc = elf_section_data (input_section)->sreloc;
3348747a
NS		 2800 /* We have to handle relocations in vxworks .tls_vars sections
2801 specially, because the dynamic loader is 'weird'. */
90c14f0c
L		 2802 is_vxworks_tls = (htab->elf.target_os == is_vxworks
2803 && bfd_link_pic (info)
3348747a
NS		 2804 && !strcmp (input_section->output_section->name,
2805 ".tls_vars"));
22b75d0a
DM		 2806
2807 rel = relocs;
2808 if (ABI_64_P (output_bfd))
d4730f92 2809 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
22b75d0a
DM		 2810 else
2811 num_relocs = input_section->reloc_count;
2812 relend = relocs + num_relocs;
2813 for (; rel < relend; rel++)
2814 {
2815 int r_type, tls_type;
2816 reloc_howto_type *howto;
2817 unsigned long r_symndx;
2818 struct elf_link_hash_entry *h;
bb1dd176 2819 struct _bfd_sparc_elf_link_hash_entry *eh;
22b75d0a
DM		 2820 Elf_Internal_Sym *sym;
2821 asection *sec;
2822 bfd_vma relocation, off;
2823 bfd_reloc_status_type r;
2824 bfd_boolean is_plt = FALSE;
2825 bfd_boolean unresolved_reloc;
bb1dd176 2826 bfd_boolean resolved_to_zero;
ec1acaba 2827 bfd_boolean relative_reloc;
22b75d0a
DM		 2828
2829 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2830 if (r_type == R_SPARC_GNU_VTINHERIT
2831 || r_type == R_SPARC_GNU_VTENTRY)
2832 continue;
2833
2834 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2835 {
2836 bfd_set_error (bfd_error_bad_value);
2837 return FALSE;
2838 }
22b75d0a 2839
c20c30f6 2840 howto = _bfd_sparc_elf_howto_table + r_type;
22b75d0a
DM		 2841 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2842 h = NULL;
2843 sym = NULL;
2844 sec = NULL;
2845 unresolved_reloc = FALSE;
2846 if (r_symndx < symtab_hdr->sh_info)
2847 {
2848 sym = local_syms + r_symndx;
2849 sec = local_sections[r_symndx];
2850 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
d0c9aeb3 2851
0e1862bb 2852 if (!bfd_link_relocatable (info)
d0c9aeb3
DM		 2853 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2854 {
2855 /* Relocate against local STT_GNU_IFUNC symbol. */
2856 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
2857 rel, FALSE);
2858 if (h == NULL)
2859 abort ();
2860
68ffbac6 2861 /* Set STT_GNU_IFUNC symbol value. */
d0c9aeb3
DM		 2862 h->root.u.def.value = sym->st_value;
2863 h->root.u.def.section = sec;
2864 }
22b75d0a
DM		 2865 }
2866 else
2867 {
62d887d4 2868 bfd_boolean warned, ignored;
22b75d0a
DM		 2869
2870 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2871 r_symndx, symtab_hdr, sym_hashes,
2872 h, sec, relocation,
62d887d4 2873 unresolved_reloc, warned, ignored);
22b75d0a
DM		 2874 if (warned)
2875 {
2876 /* To avoid generating warning messages about truncated
2877 relocations, set the relocation's address to be the same as
2878 the start of this section. */
2879 if (input_section->output_section != NULL)
2880 relocation = input_section->output_section->vma;
2881 else
2882 relocation = 0;
2883 }
2884 }
2885
dbaa2011 2886 if (sec != NULL && discarded_section (sec))
e4067dbb 2887 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2888 rel, 1, relend, howto, 0, contents);
ab96bf03 2889
0e1862bb 2890 if (bfd_link_relocatable (info))
ab96bf03
AM		 2891 continue;
2892
d0c9aeb3
DM		 2893 if (h != NULL
2894 && h->type == STT_GNU_IFUNC
2895 && h->def_regular)
2896 {
2897 asection *plt_sec;
2898 const char *name;
2899
2900 if ((input_section->flags & SEC_ALLOC) == 0
2901 || h->plt.offset == (bfd_vma) -1)
f657f8c4
NC		 2902 {
2903 /* If this is a SHT_NOTE section without SHF_ALLOC, treat
2904 STT_GNU_IFUNC symbol as STT_FUNC. */
2905 if (elf_section_type (input_section) == SHT_NOTE)
2906 goto skip_ifunc;
dd80eb2c
MP		 2907
2908 /* Dynamic relocs are not propagated for SEC_DEBUGGING
2909 sections because such sections are not SEC_ALLOC and
2910 thus ld.so will not process them. */
2911 if ((input_section->flags & SEC_ALLOC) == 0
2912 && (input_section->flags & SEC_DEBUGGING) != 0)
2913 continue;
2914
2915 _bfd_error_handler
2916 /* xgettext:c-format */
2917 (_("%pB(%pA+%#" PRIx64 "): "
2918 "unresolvable %s relocation against symbol `%s'"),
2919 input_bfd,
2920 input_section,
2921 (uint64_t) rel->r_offset,
2922 howto->name,
2923 h->root.root.string);
2924 bfd_set_error (bfd_error_bad_value);
2925 return FALSE;
f657f8c4 2926 }
d0c9aeb3
DM		 2927
2928 plt_sec = htab->elf.splt;
2929 if (! plt_sec)
2930 plt_sec =htab->elf.iplt;
2931
2932 switch (r_type)
2933 {
00c50991
DM		 2934 case R_SPARC_GOTDATA_OP:
2935 continue;
2936
d0c9aeb3
DM		 2937 case R_SPARC_GOTDATA_OP_HIX22:
2938 case R_SPARC_GOTDATA_OP_LOX10:
00c50991
DM		 2939 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
2940 ? R_SPARC_GOT22
2941 : R_SPARC_GOT10);
2942 howto = _bfd_sparc_elf_howto_table + r_type;
2943 /* Fall through. */
2944
d0c9aeb3
DM		 2945 case R_SPARC_GOT10:
2946 case R_SPARC_GOT13:
2947 case R_SPARC_GOT22:
2948 if (htab->elf.sgot == NULL)
2949 abort ();
2950 off = h->got.offset;
2951 if (off == (bfd_vma) -1)
2952 abort();
2953 relocation = htab->elf.sgot->output_offset + off - got_base;
2954 goto do_relocation;
2955
2956 case R_SPARC_WPLT30:
2957 case R_SPARC_WDISP30:
2958 relocation = (plt_sec->output_section->vma
2959 + plt_sec->output_offset + h->plt.offset);
2960 goto do_relocation;
2961
2962 case R_SPARC_32:
2963 case R_SPARC_64:
0e1862bb 2964 if (bfd_link_pic (info) && h->non_got_ref)
d0c9aeb3
DM		 2965 {
2966 Elf_Internal_Rela outrel;
2967 bfd_vma offset;
2968
2969 offset = _bfd_elf_section_offset (output_bfd, info,
2970 input_section,
2971 rel->r_offset);
2972 if (offset == (bfd_vma) -1
2973 || offset == (bfd_vma) -2)
2974 abort();
2975
2976 outrel.r_offset = (input_section->output_section->vma
2977 + input_section->output_offset
2978 + offset);
2979
2980 if (h->dynindx == -1
2981 || h->forced_local
0e1862bb 2982 || bfd_link_executable (info))
d0c9aeb3
DM		 2983 {
2984 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
2985 0, R_SPARC_IRELATIVE);
2986 outrel.r_addend = relocation + rel->r_addend;
2987 }
2988 else
2989 {
2990 if (h->dynindx == -1)
2991 abort();
2992 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
2993 outrel.r_addend = rel->r_addend;
2994 }
2995
2996 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
2997 continue;
2998 }
2999
3000 relocation = (plt_sec->output_section->vma
3001 + plt_sec->output_offset + h->plt.offset);
3002 goto do_relocation;
3003
3004 case R_SPARC_HI22:
3005 case R_SPARC_LO10:
3006 /* We should only see such relocs in static links. */
0e1862bb 3007 if (bfd_link_pic (info))
d0c9aeb3
DM		 3008 abort();
3009 relocation = (plt_sec->output_section->vma
3010 + plt_sec->output_offset + h->plt.offset);
3011 goto do_relocation;
3012
3013 default:
3014 if (h->root.root.string)
3015 name = h->root.root.string;
3016 else
3017 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3018 NULL);
4eca0228 3019 _bfd_error_handler
695344c0 3020 /* xgettext:c-format */
871b3ab2 3021 (_("%pB: relocation %s against STT_GNU_IFUNC "
d0c9aeb3
DM		 3022 "symbol `%s' isn't handled by %s"), input_bfd,
3023 _bfd_sparc_elf_howto_table[r_type].name,
3024 name, __FUNCTION__);
3025 bfd_set_error (bfd_error_bad_value);
3026 return FALSE;
3027 }
3028 }
3029
f657f8c4 3030 skip_ifunc:
bb1dd176 3031 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
c20c30f6 3032 resolved_to_zero = eh && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
bb1dd176 3033
22b75d0a
DM		 3034 switch (r_type)
3035 {
739f7f82
DM		 3036 case R_SPARC_GOTDATA_OP_HIX22:
3037 case R_SPARC_GOTDATA_OP_LOX10:
5b86074c 3038 if (gdop_relative_offset_ok (info, h, relocation))
cc133f9f
JC		 3039 {
3040 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3041 ? R_SPARC_GOTDATA_HIX22
3042 : R_SPARC_GOTDATA_LOX10);
3043 howto = _bfd_sparc_elf_howto_table + r_type;
3044 }
00c50991
DM		 3045 break;
3046
3047 case R_SPARC_GOTDATA_OP:
5b86074c 3048 if (gdop_relative_offset_ok (info, h, relocation))
00c50991
DM		 3049 {
3050 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3051
3052 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3053 relocation = 0x80000000 | (insn & 0x3e07c01f);
3054 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
a8735c82
EB		 3055
3056 /* If the symbol is global but not dynamic, an .rela.* slot has
f8745e1c
EB		 3057 been allocated for it in the GOT so output R_SPARC_NONE here,
3058 if it isn't also subject to another, old-style GOT relocation.
3059 See also the handling of these GOT relocations just below. */
a8735c82
EB		 3060 if (h != NULL
3061 && h->dynindx == -1
3062 && !h->forced_local
3063 && h->root.type != bfd_link_hash_undefweak
f8745e1c 3064 && !eh->has_old_style_got_reloc
a8735c82
EB		 3065 && (h->got.offset & 1) == 0
3066 && bfd_link_pic (info))
3067 {
3068 asection *s = htab->elf.srelgot;
3069 Elf_Internal_Rela outrel;
3070
3071 BFD_ASSERT (s != NULL);
3072
3073 memset (&outrel, 0, sizeof outrel);
3074 sparc_elf_append_rela (output_bfd, s, &outrel);
3075 h->got.offset |= 1;
3076 }
00c50991
DM		 3077 }
3078 continue;
3079 }
3080
3081 switch (r_type)
3082 {
3083 case R_SPARC_GOTDATA_HIX22:
3084 case R_SPARC_GOTDATA_LOX10:
3085 relocation = gdopoff (info, relocation);
3086 break;
739f7f82 3087
cc133f9f
JC		 3088 case R_SPARC_GOTDATA_OP_HIX22:
3089 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 3090 case R_SPARC_GOT10:
3091 case R_SPARC_GOT13:
3092 case R_SPARC_GOT22:
3093 /* Relocation is to the entry for this symbol in the global
3094 offset table. */
72fbc6e5 3095 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3096 abort ();
3097
ec1acaba 3098 relative_reloc = FALSE;
22b75d0a
DM		 3099 if (h != NULL)
3100 {
3101 bfd_boolean dyn;
3102
3103 off = h->got.offset;
3104 BFD_ASSERT (off != (bfd_vma) -1);
3105 dyn = elf_hash_table (info)->dynamic_sections_created;
3106
0e1862bb
L		 3107 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3108 bfd_link_pic (info),
3109 h)
3110 || (bfd_link_pic (info)
72fbc6e5 3111 && SYMBOL_REFERENCES_LOCAL (info, h)))
22b75d0a
DM		 3112 {
3113 /* This is actually a static link, or it is a
3114 -Bsymbolic link and the symbol is defined
3115 locally, or the symbol was forced to be local
3116 because of a version file. We must initialize
3117 this entry in the global offset table. Since the
3118 offset must always be a multiple of 8 for 64-bit
3119 and 4 for 32-bit, we use the least significant bit
3120 to record whether we have initialized it already.
3121
3122 When doing a dynamic link, we create a .rela.got
3123 relocation entry to initialize the value. This
3124 is done in the finish_dynamic_symbol routine. */
3125 if ((off & 1) != 0)
3126 off &= ~1;
3127 else
3128 {
a8735c82
EB		 3129 /* If this symbol isn't dynamic in PIC mode, treat it
3130 like a local symbol in PIC mode below. */
ec1acaba
EB		 3131 if (h->dynindx == -1
3132 && !h->forced_local
3133 && h->root.type != bfd_link_hash_undefweak
3134 && bfd_link_pic (info))
a8735c82 3135 relative_reloc = TRUE;
a9d44aad
AM		 3136 else
3137 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3138 htab->elf.sgot->contents + off);
3139 h->got.offset |= 1;
22b75d0a
DM		 3140 }
3141 }
3142 else
3143 unresolved_reloc = FALSE;
3144 }
3145 else
3146 {
3147 BFD_ASSERT (local_got_offsets != NULL
3148 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3149
3150 off = local_got_offsets[r_symndx];
3151
3152 /* The offset must always be a multiple of 8 on 64-bit and
3153 4 on 32-bit. We use the least significant bit to record
3154 whether we have already processed this entry. */
3155 if ((off & 1) != 0)
3156 off &= ~1;
3157 else
3158 {
a8735c82
EB		 3159 /* For a local symbol in PIC mode, we need to generate a
3160 R_SPARC_RELATIVE reloc for the dynamic linker. */
0e1862bb 3161 if (bfd_link_pic (info))
a9d44aad
AM		 3162 relative_reloc = TRUE;
3163 else
3164 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3165 htab->elf.sgot->contents + off);
22b75d0a
DM		 3166 local_got_offsets[r_symndx] |= 1;
3167 }
3168 }
ec1acaba
EB		 3169
3170 if (relative_reloc)
3171 {
a8735c82 3172 asection *s = htab->elf.srelgot;
ec1acaba
EB		 3173 Elf_Internal_Rela outrel;
3174
ec1acaba
EB		 3175 BFD_ASSERT (s != NULL);
3176
3177 outrel.r_offset = (htab->elf.sgot->output_section->vma
3178 + htab->elf.sgot->output_offset
3179 + off);
3180 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3181 0, R_SPARC_RELATIVE);
3182 outrel.r_addend = relocation;
ec1acaba 3183 sparc_elf_append_rela (output_bfd, s, &outrel);
a9d44aad
AM		 3184 /* Versions of glibc ld.so at least up to 2.26 wrongly
3185 add the section contents to the value calculated for
3186 a RELATIVE reloc. Zero the contents to work around
3187 this bug. */
3188 relocation = 0;
3189 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3190 htab->elf.sgot->contents + off);
ec1acaba
EB		 3191 }
3192
72fbc6e5 3193 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3194 break;
3195
3196 case R_SPARC_PLT32:
3197 case R_SPARC_PLT64:
3198 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3199 {
3200 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3201 goto r_sparc_plt32;
3202 }
3203 /* Fall through. */
3204
3205 case R_SPARC_WPLT30:
3206 case R_SPARC_HIPLT22:
3207 case R_SPARC_LOPLT10:
3208 case R_SPARC_PCPLT32:
3209 case R_SPARC_PCPLT22:
3210 case R_SPARC_PCPLT10:
3211 r_sparc_wplt30:
3212 /* Relocation is to the entry for this symbol in the
3213 procedure linkage table. */
3214
3215 if (! ABI_64_P (output_bfd))
3216 {
3217 /* The Solaris native assembler will generate a WPLT30 reloc
3218 for a local symbol if you assemble a call from one
3219 section to another when using -K pic. We treat it as
3220 WDISP30. */
3221 if (h == NULL)
3222 break;
3223 }
68ffbac6 3224 /* PR 7027: We need similar behaviour for 64-bit binaries. */
af1fb11f
NC		 3225 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3226 break;
22b75d0a
DM		 3227 else
3228 {
3229 BFD_ASSERT (h != NULL);
3230 }
3231
72fbc6e5 3232 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
22b75d0a
DM		 3233 {
3234 /* We didn't make a PLT entry for this symbol. This
3235 happens when statically linking PIC code, or when
3236 using -Bsymbolic. */
3237 break;
3238 }
3239
72fbc6e5
DM		 3240 relocation = (htab->elf.splt->output_section->vma
3241 + htab->elf.splt->output_offset
22b75d0a
DM		 3242 + h->plt.offset);
3243 unresolved_reloc = FALSE;
3244 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3245 {
3246 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3247 is_plt = TRUE;
3248 goto r_sparc_plt32;
3249 }
3250 break;
3251
3252 case R_SPARC_PC10:
3253 case R_SPARC_PC22:
3254 case R_SPARC_PC_HH22:
3255 case R_SPARC_PC_HM10:
3256 case R_SPARC_PC_LM22:
3257 if (h != NULL
3258 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3259 break;
3260 /* Fall through. */
3261 case R_SPARC_DISP8:
3262 case R_SPARC_DISP16:
3263 case R_SPARC_DISP32:
3264 case R_SPARC_DISP64:
3265 case R_SPARC_WDISP30:
3266 case R_SPARC_WDISP22:
3267 case R_SPARC_WDISP19:
3268 case R_SPARC_WDISP16:
2615994e 3269 case R_SPARC_WDISP10:
22b75d0a
DM		 3270 case R_SPARC_8:
3271 case R_SPARC_16:
3272 case R_SPARC_32:
3273 case R_SPARC_HI22:
3274 case R_SPARC_22:
3275 case R_SPARC_13:
3276 case R_SPARC_LO10:
3277 case R_SPARC_UA16:
3278 case R_SPARC_UA32:
3279 case R_SPARC_10:
3280 case R_SPARC_11:
3281 case R_SPARC_64:
3282 case R_SPARC_OLO10:
3283 case R_SPARC_HH22:
3284 case R_SPARC_HM10:
3285 case R_SPARC_LM22:
3286 case R_SPARC_7:
3287 case R_SPARC_5:
3288 case R_SPARC_6:
3289 case R_SPARC_HIX22:
3290 case R_SPARC_LOX10:
3291 case R_SPARC_H44:
3292 case R_SPARC_M44:
3293 case R_SPARC_L44:
2615994e 3294 case R_SPARC_H34:
22b75d0a
DM		 3295 case R_SPARC_UA64:
3296 r_sparc_plt32:
c20c30f6 3297 if ((input_section->flags & SEC_ALLOC) == 0 || is_vxworks_tls)
22b75d0a
DM		 3298 break;
3299
07d6d2b8
AM		 3300 /* Copy dynamic function pointer relocations. Don't generate
3301 dynamic relocations against resolved undefined weak symbols
3302 in PIE. */
0e1862bb 3303 if ((bfd_link_pic (info)
22b75d0a 3304 && (h == NULL
a8735c82
EB		 3305 || !(h->root.type == bfd_link_hash_undefweak
3306 && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
3307 || resolved_to_zero)))
22b75d0a 3308 && (! howto->pc_relative
72fbc6e5 3309 || !SYMBOL_CALLS_LOCAL (info, h)))
0e1862bb 3310 || (!bfd_link_pic (info)
22b75d0a
DM		 3311 && h != NULL
3312 && h->dynindx != -1
3313 && !h->non_got_ref
3314 && ((h->def_dynamic
3315 && !h->def_regular)
bb1dd176 3316 || (h->root.type == bfd_link_hash_undefweak
07d6d2b8 3317 && !resolved_to_zero)
22b75d0a
DM		 3318 || h->root.type == bfd_link_hash_undefined)))
3319 {
3320 Elf_Internal_Rela outrel;
3321 bfd_boolean skip, relocate = FALSE;
3322
3323 /* When generating a shared object, these relocations
3324 are copied into the output file to be resolved at run
3325 time. */
3326
3327 BFD_ASSERT (sreloc != NULL);
3328
3329 skip = FALSE;
3330
3331 outrel.r_offset =
3332 _bfd_elf_section_offset (output_bfd, info, input_section,
3333 rel->r_offset);
3334 if (outrel.r_offset == (bfd_vma) -1)
3335 skip = TRUE;
3336 else if (outrel.r_offset == (bfd_vma) -2)
3337 skip = TRUE, relocate = TRUE;
3338 outrel.r_offset += (input_section->output_section->vma
3339 + input_section->output_offset);
3340
3341 /* Optimize unaligned reloc usage now that we know where
3342 it finally resides. */
3343 switch (r_type)
3344 {
3345 case R_SPARC_16:
3346 if (outrel.r_offset & 1)
3347 r_type = R_SPARC_UA16;
3348 break;
3349 case R_SPARC_UA16:
3350 if (!(outrel.r_offset & 1))
3351 r_type = R_SPARC_16;
3352 break;
3353 case R_SPARC_32:
3354 if (outrel.r_offset & 3)
3355 r_type = R_SPARC_UA32;
3356 break;
3357 case R_SPARC_UA32:
3358 if (!(outrel.r_offset & 3))
3359 r_type = R_SPARC_32;
3360 break;
3361 case R_SPARC_64:
3362 if (outrel.r_offset & 7)
3363 r_type = R_SPARC_UA64;
3364 break;
3365 case R_SPARC_UA64:
3366 if (!(outrel.r_offset & 7))
3367 r_type = R_SPARC_64;
3368 break;
07d6d2b8 3369 case R_SPARC_DISP8:
22b75d0a 3370 case R_SPARC_DISP16:
07d6d2b8
AM		 3371 case R_SPARC_DISP32:
3372 case R_SPARC_DISP64:
22b75d0a
DM		 3373 /* If the symbol is not dynamic, we should not keep
3374 a dynamic relocation. But an .rela.* slot has been
3375 allocated for it, output R_SPARC_NONE.
3376 FIXME: Add code tracking needed dynamic relocs as
3377 e.g. i386 has. */
3378 if (h->dynindx == -1)
3379 skip = TRUE, relocate = TRUE;
3380 break;
3381 }
3382
3383 if (skip)
3384 memset (&outrel, 0, sizeof outrel);
3385 /* h->dynindx may be -1 if the symbol was marked to
3386 become local. */
886a2506
NC		 3387 else if (h != NULL
3388 && h->dynindx != -1
3389 && (_bfd_sparc_elf_howto_table[r_type].pc_relative
0e1862bb 3390 || !bfd_link_pic (info)
72fbc6e5 3391 || !SYMBOLIC_BIND (info, h)
22b75d0a
DM		 3392 || !h->def_regular))
3393 {
22b75d0a
DM		 3394 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3395 outrel.r_addend = rel->r_addend;
3396 }
3397 else
3398 {
7160c10d
JC		 3399 if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3400 || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
22b75d0a
DM		 3401 {
3402 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3403 0, R_SPARC_RELATIVE);
3404 outrel.r_addend = relocation + rel->r_addend;
3405 }
3406 else
3407 {
3408 long indx;
3409
74541ad4
AM		 3410 outrel.r_addend = relocation + rel->r_addend;
3411
22b75d0a 3412 if (is_plt)
72fbc6e5 3413 sec = htab->elf.splt;
22b75d0a
DM		 3414
3415 if (bfd_is_abs_section (sec))
3416 indx = 0;
3417 else if (sec == NULL || sec->owner == NULL)
3418 {
3419 bfd_set_error (bfd_error_bad_value);
3420 return FALSE;
3421 }
3422 else
3423 {
3424 asection *osec;
3425
74541ad4
AM		 3426 /* We are turning this relocation into one
3427 against a section symbol. It would be
3428 proper to subtract the symbol's value,
3429 osec->vma, from the emitted reloc addend,
3430 but ld.so expects buggy relocs. */
22b75d0a
DM		 3431 osec = sec->output_section;
3432 indx = elf_section_data (osec)->dynindx;
3433
74541ad4
AM		 3434 if (indx == 0)
3435 {
3436 osec = htab->elf.text_index_section;
3437 indx = elf_section_data (osec)->dynindx;
3438 }
3439
22b75d0a
DM		 3440 /* FIXME: we really should be able to link non-pic
3441 shared libraries. */
3442 if (indx == 0)
3443 {
3444 BFD_FAIL ();
4eca0228 3445 _bfd_error_handler
871b3ab2 3446 (_("%pB: probably compiled without -fPIC?"),
22b75d0a
DM		 3447 input_bfd);
3448 bfd_set_error (bfd_error_bad_value);
3449 return FALSE;
3450 }
3451 }
3452
74541ad4
AM		 3453 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3454 r_type);
22b75d0a
DM		 3455 }
3456 }
3457
39817122 3458 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3459
3460 /* This reloc will be computed at runtime, so there's no
3461 need to do anything now. */
3462 if (! relocate)
3463 continue;
3464 }
3465 break;
3466
3467 case R_SPARC_TLS_GD_HI22:
22b75d0a
DM		 3468 case R_SPARC_TLS_GD_LO10:
3469 case R_SPARC_TLS_IE_HI22:
3470 case R_SPARC_TLS_IE_LO10:
c20c30f6
EB		 3471 r_type = sparc_elf_tls_transition (info, input_bfd, r_type,
3472 h == NULL || h->dynindx == -1);
3473 if (r_type == R_SPARC_REV32)
3474 break;
3475 if (h != NULL)
3476 tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3477 else if (local_got_offsets)
22b75d0a 3478 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
c20c30f6
EB		 3479 else
3480 tls_type = GOT_UNKNOWN;
22b75d0a
DM		 3481 if (tls_type == GOT_TLS_IE)
3482 switch (r_type)
3483 {
3484 case R_SPARC_TLS_GD_HI22:
3485 r_type = R_SPARC_TLS_IE_HI22;
3486 break;
3487 case R_SPARC_TLS_GD_LO10:
3488 r_type = R_SPARC_TLS_IE_LO10;
3489 break;
3490 }
3491
3492 if (r_type == R_SPARC_TLS_LE_HIX22)
3493 {
3494 relocation = tpoff (info, relocation);
3495 break;
3496 }
3497 if (r_type == R_SPARC_TLS_LE_LOX10)
3498 {
3499 /* Change add into xor. */
3500 relocation = tpoff (info, relocation);
3501 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3502 contents + rel->r_offset)
3503 | 0x80182000), contents + rel->r_offset);
3504 break;
3505 }
3506
3507 if (h != NULL)
3508 {
3509 off = h->got.offset;
3510 h->got.offset |= 1;
3511 }
3512 else
3513 {
3514 BFD_ASSERT (local_got_offsets != NULL);
3515 off = local_got_offsets[r_symndx];
3516 local_got_offsets[r_symndx] |= 1;
3517 }
3518
3519 r_sparc_tlsldm:
72fbc6e5 3520 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3521 abort ();
3522
3523 if ((off & 1) != 0)
3524 off &= ~1;
3525 else
3526 {
3527 Elf_Internal_Rela outrel;
3528 int dr_type, indx;
3529
72fbc6e5 3530 if (htab->elf.srelgot == NULL)
22b75d0a
DM		 3531 abort ();
3532
72fbc6e5
DM		 3533 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3534 htab->elf.sgot->contents + off);
3535 outrel.r_offset = (htab->elf.sgot->output_section->vma
3536 + htab->elf.sgot->output_offset + off);
22b75d0a
DM		 3537 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3538 if (r_type == R_SPARC_TLS_IE_HI22
3539 || r_type == R_SPARC_TLS_IE_LO10)
3540 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3541 else
3542 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3543 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3544 outrel.r_addend = relocation - dtpoff_base (info);
3545 else
3546 outrel.r_addend = 0;
3547 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
72fbc6e5 3548 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
22b75d0a
DM		 3549
3550 if (r_type == R_SPARC_TLS_GD_HI22
3551 || r_type == R_SPARC_TLS_GD_LO10)
3552 {
3553 if (indx == 0)
3554 {
07d6d2b8 3555 BFD_ASSERT (! unresolved_reloc);
22b75d0a
DM		 3556 SPARC_ELF_PUT_WORD (htab, output_bfd,
3557 relocation - dtpoff_base (info),
72fbc6e5 3558 (htab->elf.sgot->contents + off
22b75d0a
DM		 3559 + SPARC_ELF_WORD_BYTES (htab)));
3560 }
3561 else
3562 {
3563 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3564 (htab->elf.sgot->contents + off
22b75d0a
DM		 3565 + SPARC_ELF_WORD_BYTES (htab)));
3566 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3567 SPARC_ELF_DTPOFF_RELOC (htab));
3568 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
72fbc6e5 3569 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
39817122 3570 &outrel);
22b75d0a
DM		 3571 }
3572 }
3573 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3574 {
3575 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3576 (htab->elf.sgot->contents + off
22b75d0a
DM		 3577 + SPARC_ELF_WORD_BYTES (htab)));
3578 }
3579 }
3580
3581 if (off >= (bfd_vma) -2)
3582 abort ();
3583
72fbc6e5 3584 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3585 unresolved_reloc = FALSE;
3586 howto = _bfd_sparc_elf_howto_table + r_type;
3587 break;
3588
3589 case R_SPARC_TLS_LDM_HI22:
3590 case R_SPARC_TLS_LDM_LO10:
c20c30f6
EB		 3591 /* LD -> LE */
3592 if (bfd_link_executable (info))
22b75d0a
DM		 3593 {
3594 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3595 continue;
3596 }
3597 off = htab->tls_ldm_got.offset;
3598 htab->tls_ldm_got.offset |= 1;
3599 goto r_sparc_tlsldm;
3600
3601 case R_SPARC_TLS_LDO_HIX22:
3602 case R_SPARC_TLS_LDO_LOX10:
c20c30f6
EB		 3603 /* LD -> LE */
3604 if (bfd_link_executable (info))
3605 {
3606 if (r_type == R_SPARC_TLS_LDO_HIX22)
3607 r_type = R_SPARC_TLS_LE_HIX22;
3608 else
3609 r_type = R_SPARC_TLS_LE_LOX10;
3610 }
3611 else
22b75d0a
DM		 3612 {
3613 relocation -= dtpoff_base (info);
3614 break;
3615 }
22b75d0a
DM		 3616 /* Fall through. */
3617
3618 case R_SPARC_TLS_LE_HIX22:
3619 case R_SPARC_TLS_LE_LOX10:
c20c30f6 3620 if (!bfd_link_executable (info))
22b75d0a
DM		 3621 {
3622 Elf_Internal_Rela outrel;
c20c30f6
EB		 3623 bfd_vma offset
3624 = _bfd_elf_section_offset (output_bfd, info, input_section,
3625 rel->r_offset);
3626 if (offset == (bfd_vma) -1 || offset == (bfd_vma) -2)
22b75d0a
DM		 3627 memset (&outrel, 0, sizeof outrel);
3628 else
3629 {
c20c30f6
EB		 3630 outrel.r_offset = offset
3631 + input_section->output_section->vma
3632 + input_section->output_offset;
22b75d0a 3633 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
c20c30f6
EB		 3634 outrel.r_addend
3635 = relocation - dtpoff_base (info) + rel->r_addend;
22b75d0a
DM		 3636 }
3637
c20c30f6 3638 BFD_ASSERT (sreloc != NULL);
39817122 3639 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3640 continue;
3641 }
3642 relocation = tpoff (info, relocation);
3643 break;
3644
3645 case R_SPARC_TLS_LDM_CALL:
c20c30f6
EB		 3646 /* LD -> LE */
3647 if (bfd_link_executable (info))
22b75d0a
DM		 3648 {
3649 /* mov %g0, %o0 */
3650 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3651 continue;
3652 }
3653 /* Fall through */
3654
3655 case R_SPARC_TLS_GD_CALL:
c20c30f6
EB		 3656 if (h != NULL)
3657 tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3658 else if (local_got_offsets)
22b75d0a 3659 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
c20c30f6
EB		 3660 else
3661 tls_type = GOT_UNKNOWN;
3662 /* GD -> IE or LE */
3663 if (bfd_link_executable (info)
22b75d0a
DM		 3664 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3665 {
abd242a9 3666 Elf_Internal_Rela *rel2;
22b75d0a
DM		 3667 bfd_vma insn;
3668
c20c30f6
EB		 3669 /* GD -> LE */
3670 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
22b75d0a 3671 {
22b75d0a
DM		 3672 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3673 continue;
3674 }
3675
3676 /* GD -> IE */
3677 if (rel + 1 < relend
3678 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3679 && rel[1].r_offset == rel->r_offset + 4
3680 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3681 && (((insn = bfd_get_32 (input_bfd,
3682 contents + rel[1].r_offset))
3683 >> 25) & 0x1f) == 8)
3684 {
3685 /* We have
3686 call __tls_get_addr, %tgd_call(foo)
3687 add %reg1, %reg2, %o0, %tgd_add(foo)
3688 and change it into IE:
3689 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3690 add %g7, %o0, %o0, %tie_add(foo).
3691 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3692 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3693 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3694 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3695 contents + rel->r_offset);
3696 bfd_put_32 (output_bfd, 0x9001c008,
3697 contents + rel->r_offset + 4);
3698 rel++;
3699 continue;
3700 }
3701
abd242a9
DM		 3702 /* We cannot just overwrite the delay slot instruction,
3703 as it might be what puts the %o0 argument to
3704 __tls_get_addr into place. So we have to transpose
3705 the delay slot with the add we patch in. */
3706 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3707 bfd_put_32 (output_bfd, insn,
3708 contents + rel->r_offset);
3709 bfd_put_32 (output_bfd, 0x9001c008,
3710 contents + rel->r_offset + 4);
3711
3712 rel2 = rel;
3713 while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3714 rel->r_offset + 4))
3715 != NULL)
3716 {
3717 /* If the instruction we moved has a relocation attached to
3718 it, adjust the offset so that it will apply to the correct
3719 instruction. */
3720 rel2->r_offset -= 4;
3721 }
22b75d0a
DM		 3722 continue;
3723 }
3724
3725 h = (struct elf_link_hash_entry *)
3726 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3727 FALSE, TRUE);
3728 BFD_ASSERT (h != NULL);
3729 r_type = R_SPARC_WPLT30;
3730 howto = _bfd_sparc_elf_howto_table + r_type;
3731 goto r_sparc_wplt30;
3732
3733 case R_SPARC_TLS_GD_ADD:
c20c30f6
EB		 3734 if (h != NULL)
3735 tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3736 else if (local_got_offsets)
22b75d0a 3737 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
c20c30f6
EB		 3738 else
3739 tls_type = GOT_UNKNOWN;
3740 /* GD -> IE or LE */
3741 if (bfd_link_executable (info) || tls_type == GOT_TLS_IE)
22b75d0a
DM		 3742 {
3743 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3744 changed into IE:
3745 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3746 or LE:
3747 add %g7, %reg2, %reg3. */
3748 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
c20c30f6 3749 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
22b75d0a 3750 relocation = (insn & ~0x7c000) | 0x1c000;
c20c30f6
EB		 3751 else
3752 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
22b75d0a
DM		 3753 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3754 }
3755 continue;
3756
3757 case R_SPARC_TLS_LDM_ADD:
c20c30f6
EB		 3758 /* LD -> LE */
3759 if (bfd_link_executable (info))
22b75d0a
DM		 3760 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3761 continue;
3762
3763 case R_SPARC_TLS_LDO_ADD:
c20c30f6
EB		 3764 /* LD -> LE */
3765 if (bfd_link_executable (info))
22b75d0a
DM		 3766 {
3767 /* Change rs1 into %g7. */
3768 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3769 insn = (insn & ~0x7c000) | 0x1c000;
3770 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3771 }
3772 continue;
3773
3774 case R_SPARC_TLS_IE_LD:
3775 case R_SPARC_TLS_IE_LDX:
c20c30f6
EB		 3776 /* IE -> LE */
3777 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
22b75d0a
DM		 3778 {
3779 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3780 int rs2 = insn & 0x1f;
3781 int rd = (insn >> 25) & 0x1f;
3782
3783 if (rs2 == rd)
3784 relocation = SPARC_NOP;
3785 else
3786 relocation = 0x80100000 | (insn & 0x3e00001f);
3787 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3788 }
3789 continue;
3790
3791 case R_SPARC_TLS_IE_ADD:
3792 /* Totally useless relocation. */
3793 continue;
3794
3795 case R_SPARC_TLS_DTPOFF32:
3796 case R_SPARC_TLS_DTPOFF64:
3797 relocation -= dtpoff_base (info);
3798 break;
3799
3800 default:
3801 break;
3802 }
3803
3804 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3805 because such sections are not SEC_ALLOC and thus ld.so will
3806 not process them. */
3807 if (unresolved_reloc
3808 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 3809 && h->def_dynamic)
3810 && _bfd_elf_section_offset (output_bfd, info, input_section,
3811 rel->r_offset) != (bfd_vma) -1)
4eca0228 3812 _bfd_error_handler
695344c0 3813 /* xgettext:c-format */
2dcf00ce
AM		 3814 (_("%pB(%pA+%#" PRIx64 "): "
3815 "unresolvable %s relocation against symbol `%s'"),
22b75d0a
DM		 3816 input_bfd,
3817 input_section,
2dcf00ce 3818 (uint64_t) rel->r_offset,
843fe662 3819 howto->name,
22b75d0a
DM		 3820 h->root.root.string);
3821
3822 r = bfd_reloc_continue;
3823 if (r_type == R_SPARC_OLO10)
3824 {
3825 bfd_vma x;
3826
3827 if (! ABI_64_P (output_bfd))
3828 abort ();
3829
3830 relocation += rel->r_addend;
3831 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3832
3833 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3834 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3835 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3836
3837 r = bfd_check_overflow (howto->complain_on_overflow,
3838 howto->bitsize, howto->rightshift,
3839 bfd_arch_bits_per_address (input_bfd),
3840 relocation);
3841 }
3842 else if (r_type == R_SPARC_WDISP16)
3843 {
3844 bfd_vma x;
3845
3846 relocation += rel->r_addend;
3847 relocation -= (input_section->output_section->vma
3848 + input_section->output_offset);
3849 relocation -= rel->r_offset;
3850
3851 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3852 x |= ((((relocation >> 2) & 0xc000) << 6)
3853 | ((relocation >> 2) & 0x3fff));
3854 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3855
2615994e
DM		 3856 r = bfd_check_overflow (howto->complain_on_overflow,
3857 howto->bitsize, howto->rightshift,
3858 bfd_arch_bits_per_address (input_bfd),
3859 relocation);
3860 }
3861 else if (r_type == R_SPARC_WDISP10)
3862 {
3863 bfd_vma x;
3864
3865 relocation += rel->r_addend;
3866 relocation -= (input_section->output_section->vma
3867 + input_section->output_offset);
3868 relocation -= rel->r_offset;
3869
3870 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3871 x |= ((((relocation >> 2) & 0x300) << 11)
3872 | (((relocation >> 2) & 0xff) << 5));
3873 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3874
22b75d0a
DM		 3875 r = bfd_check_overflow (howto->complain_on_overflow,
3876 howto->bitsize, howto->rightshift,
3877 bfd_arch_bits_per_address (input_bfd),
3878 relocation);
3879 }
3880 else if (r_type == R_SPARC_REV32)
3881 {
3882 bfd_vma x;
3883
3884 relocation = relocation + rel->r_addend;
3885
3886 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3887 x = x + relocation;
3888 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
3889 r = bfd_reloc_ok;
3890 }
3891 else if (r_type == R_SPARC_TLS_LDO_HIX22
3892 || r_type == R_SPARC_TLS_LE_HIX22)
3893 {
3894 bfd_vma x;
3895
3896 relocation += rel->r_addend;
3897 if (r_type == R_SPARC_TLS_LE_HIX22)
3898 relocation ^= MINUS_ONE;
3899
3900 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3901 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3902 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3903 r = bfd_reloc_ok;
3904 }
3905 else if (r_type == R_SPARC_TLS_LDO_LOX10
3906 || r_type == R_SPARC_TLS_LE_LOX10)
3907 {
3908 bfd_vma x;
3909
3910 relocation += rel->r_addend;
3911 relocation &= 0x3ff;
3912 if (r_type == R_SPARC_TLS_LE_LOX10)
3913 relocation |= 0x1c00;
3914
3915 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3916 x = (x & ~(bfd_vma) 0x1fff) | relocation;
3917 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3918
3919 r = bfd_reloc_ok;
3920 }
00c50991 3921 else if (r_type == R_SPARC_HIX22
cc133f9f
JC		 3922 || r_type == R_SPARC_GOTDATA_HIX22
3923 || r_type == R_SPARC_GOTDATA_OP_HIX22)
22b75d0a
DM		 3924 {
3925 bfd_vma x;
3926
3927 relocation += rel->r_addend;
00c50991
DM		 3928 if (r_type == R_SPARC_HIX22
3929 || (bfd_signed_vma) relocation < 0)
3930 relocation = relocation ^ MINUS_ONE;
22b75d0a
DM		 3931
3932 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3933 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3934 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3935
3936 r = bfd_check_overflow (howto->complain_on_overflow,
3937 howto->bitsize, howto->rightshift,
3938 bfd_arch_bits_per_address (input_bfd),
3939 relocation);
3940 }
00c50991 3941 else if (r_type == R_SPARC_LOX10
cc133f9f
JC		 3942 || r_type == R_SPARC_GOTDATA_LOX10
3943 || r_type == R_SPARC_GOTDATA_OP_LOX10)
22b75d0a
DM		 3944 {
3945 bfd_vma x;
3946
3947 relocation += rel->r_addend;
00c50991
DM		 3948 if (r_type == R_SPARC_LOX10
3949 || (bfd_signed_vma) relocation < 0)
3950 relocation = (relocation & 0x3ff) | 0x1c00;
3951 else
3952 relocation = (relocation & 0x3ff);
22b75d0a
DM		 3953
3954 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3955 x = (x & ~(bfd_vma) 0x1fff) | relocation;
3956 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3957
3958 r = bfd_reloc_ok;
3959 }
3960 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
3961 && sec_do_relax (input_section)
3962 && rel->r_offset + 4 < input_section->size)
3963 {
3964#define G0 0
3965#define O7 15
3966#define XCC (2 << 20)
3967#define COND(x) (((x)&0xf)<<25)
3968#define CONDA COND(0x8)
3969#define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
3970#define INSN_BA (F2(0,2) | CONDA)
3971#define INSN_OR F3(2, 0x2, 0)
3972#define INSN_NOP F2(0,4)
3973
3974 bfd_vma x, y;
3975
3976 /* If the instruction is a call with either:
3977 restore
3978 arithmetic instruction with rd == %o7
3979 where rs1 != %o7 and rs2 if it is register != %o7
3980 then we can optimize if the call destination is near
3981 by changing the call into a branch always. */
3982 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3983 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3984 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
3985 {
3986 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
3987 || ((y & OP3(0x28)) == 0 /* arithmetic */
3988 && (y & RD(~0)) == RD(O7)))
3989 && (y & RS1(~0)) != RS1(O7)
3990 && ((y & F3I(~0))
3991 || (y & RS2(~0)) != RS2(O7)))
3992 {
3993 bfd_vma reloc;
3994
3995 reloc = relocation + rel->r_addend - rel->r_offset;
3996 reloc -= (input_section->output_section->vma
3997 + input_section->output_offset);
3998
3999 /* Ensure the branch fits into simm22. */
4000 if ((reloc & 3) == 0
4001 && ((reloc & ~(bfd_vma)0x7fffff) == 0
4002 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4003 {
4004 reloc >>= 2;
4005
4006 /* Check whether it fits into simm19. */
4007 if (((reloc & 0x3c0000) == 0
4008 || (reloc & 0x3c0000) == 0x3c0000)
4009 && (ABI_64_P (output_bfd)
4010 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4011 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4012 else
4013 x = INSN_BA | (reloc & 0x3fffff); /* ba */
4014 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4015 r = bfd_reloc_ok;
4016 if (rel->r_offset >= 4
4017 && (y & (0xffffffff ^ RS1(~0)))
4018 == (INSN_OR | RD(O7) | RS2(G0)))
4019 {
4020 bfd_vma z;
4021 unsigned int reg;
4022
4023 z = bfd_get_32 (input_bfd,
4024 contents + rel->r_offset - 4);
4025 if ((z & (0xffffffff ^ RD(~0)))
4026 != (INSN_OR | RS1(O7) | RS2(G0)))
597e138c 4027 continue;
22b75d0a
DM		 4028
4029 /* The sequence was
4030 or %o7, %g0, %rN
4031 call foo
4032 or %rN, %g0, %o7
4033
4034 If call foo was replaced with ba, replace
4035 or %rN, %g0, %o7 with nop. */
4036
4037 reg = (y & RS1(~0)) >> 14;
4038 if (reg != ((z & RD(~0)) >> 25)
4039 || reg == G0 || reg == O7)
597e138c 4040 continue;
22b75d0a
DM		 4041
4042 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4043 contents + rel->r_offset + 4);
4044 }
4045
4046 }
4047 }
4048 }
4049 }
4050
4051 if (r == bfd_reloc_continue)
d0c9aeb3 4052 {
dc1e8a47 4053 do_relocation:
d0c9aeb3
DM		 4054 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4055 contents, rel->r_offset,
4056 relocation, rel->r_addend);
4057 }
22b75d0a
DM		 4058 if (r != bfd_reloc_ok)
4059 {
4060 switch (r)
4061 {
4062 default:
4063 case bfd_reloc_outofrange:
4064 abort ();
4065 case bfd_reloc_overflow:
4066 {
4067 const char *name;
4068
68ffbac6 4069 /* The Solaris native linker silently disregards overflows.
dc669dc8
EB		 4070 We don't, but this breaks stabs debugging info, whose
4071 relocations are only 32-bits wide. Ignore overflows in
4072 this case and also for discarded entries. */
0bef263a
RO		 4073 if ((r_type == R_SPARC_32
4074 || r_type == R_SPARC_UA32
4075 || r_type == R_SPARC_DISP32)
dc669dc8 4076 && (((input_section->flags & SEC_DEBUGGING) != 0
fd361982 4077 && strcmp (bfd_section_name (input_section),
dc669dc8
EB		 4078 ".stab") == 0)
4079 || _bfd_elf_section_offset (output_bfd, info,
4080 input_section,
4081 rel->r_offset)
4082 == (bfd_vma)-1))
4083 break;
4084
22b75d0a 4085 if (h != NULL)
bb29dfea
EB		 4086 {
4087 /* Assume this is a call protected by other code that
4088 detect the symbol is undefined. If this is the case,
4089 we can safely ignore the overflow. If not, the
4090 program is hosed anyway, and a little warning isn't
4091 going to help. */
4092 if (h->root.type == bfd_link_hash_undefweak
4093 && howto->pc_relative)
4094 break;
4095
07d6d2b8 4096 name = NULL;
bb29dfea 4097 }
22b75d0a
DM		 4098 else
4099 {
4100 name = bfd_elf_string_from_elf_section (input_bfd,
4101 symtab_hdr->sh_link,
4102 sym->st_name);
4103 if (name == NULL)
4104 return FALSE;
4105 if (*name == '\0')
fd361982 4106 name = bfd_section_name (sec);
22b75d0a 4107 }
1a72702b
AM		 4108 (*info->callbacks->reloc_overflow)
4109 (info, (h ? &h->root : NULL), name, howto->name,
4110 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
22b75d0a
DM		 4111 }
4112 break;
4113 }
4114 }
4115 }
4116
4117 return TRUE;
4118}
4119
910600e9
RS		 4120/* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4121 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4122 is the offset of the associated .got.plt entry from
4123 _GLOBAL_OFFSET_TABLE_. */
4124
4125static void
4126sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4127 bfd_vma plt_offset, bfd_vma plt_index,
4128 bfd_vma got_offset)
4129{
4130 bfd_vma got_base;
4131 const bfd_vma *plt_entry;
4132 struct _bfd_sparc_elf_link_hash_table *htab;
4133 bfd_byte *loc;
4134 Elf_Internal_Rela rela;
4135
4136 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4137 BFD_ASSERT (htab != NULL);
4138
0e1862bb 4139 if (bfd_link_pic (info))
910600e9
RS		 4140 {
4141 plt_entry = sparc_vxworks_shared_plt_entry;
4142 got_base = 0;
4143 }
4144 else
4145 {
4146 plt_entry = sparc_vxworks_exec_plt_entry;
4147 got_base = (htab->elf.hgot->root.u.def.value
4148 + htab->elf.hgot->root.u.def.section->output_offset
4149 + htab->elf.hgot->root.u.def.section->output_section->vma);
4150 }
4151
4152 /* Fill in the entry in the procedure linkage table. */
4153 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
72fbc6e5 4154 htab->elf.splt->contents + plt_offset);
910600e9 4155 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
72fbc6e5 4156 htab->elf.splt->contents + plt_offset + 4);
910600e9 4157 bfd_put_32 (output_bfd, plt_entry[2],
72fbc6e5 4158 htab->elf.splt->contents + plt_offset + 8);
910600e9 4159 bfd_put_32 (output_bfd, plt_entry[3],
72fbc6e5 4160 htab->elf.splt->contents + plt_offset + 12);
910600e9 4161 bfd_put_32 (output_bfd, plt_entry[4],
72fbc6e5 4162 htab->elf.splt->contents + plt_offset + 16);
910600e9 4163 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
72fbc6e5 4164 htab->elf.splt->contents + plt_offset + 20);
910600e9
RS		 4165 /* PC-relative displacement for a branch to the start of
4166 the PLT section. */
4167 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4168 & 0x003fffff),
72fbc6e5 4169 htab->elf.splt->contents + plt_offset + 24);
910600e9 4170 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
72fbc6e5 4171 htab->elf.splt->contents + plt_offset + 28);
910600e9
RS		 4172
4173 /* Fill in the .got.plt entry, pointing initially at the
4174 second half of the PLT entry. */
72fbc6e5 4175 BFD_ASSERT (htab->elf.sgotplt != NULL);
910600e9 4176 bfd_put_32 (output_bfd,
72fbc6e5
DM		 4177 htab->elf.splt->output_section->vma
4178 + htab->elf.splt->output_offset
910600e9 4179 + plt_offset + 20,
72fbc6e5 4180 htab->elf.sgotplt->contents + got_offset);
910600e9
RS		 4181
4182 /* Add relocations to .rela.plt.unloaded. */
0e1862bb 4183 if (!bfd_link_pic (info))
910600e9
RS		 4184 {
4185 loc = (htab->srelplt2->contents
4186 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4187
4188 /* Relocate the initial sethi. */
72fbc6e5
DM		 4189 rela.r_offset = (htab->elf.splt->output_section->vma
4190 + htab->elf.splt->output_offset
910600e9
RS		 4191 + plt_offset);
4192 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4193 rela.r_addend = got_offset;
4194 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4195 loc += sizeof (Elf32_External_Rela);
4196
4197 /* Likewise the following or. */
4198 rela.r_offset += 4;
4199 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4200 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4201 loc += sizeof (Elf32_External_Rela);
4202
4203 /* Relocate the .got.plt entry. */
72fbc6e5
DM		 4204 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4205 + htab->elf.sgotplt->output_offset
910600e9
RS		 4206 + got_offset);
4207 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4208 rela.r_addend = plt_offset + 20;
4209 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4210 }
4211}
4212
22b75d0a
DM		 4213/* Finish up dynamic symbol handling. We set the contents of various
4214 dynamic sections here. */
4215
4216bfd_boolean
4217_bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4218 struct bfd_link_info *info,
4219 struct elf_link_hash_entry *h,
4220 Elf_Internal_Sym *sym)
4221{
22b75d0a 4222 struct _bfd_sparc_elf_link_hash_table *htab;
39817122 4223 const struct elf_backend_data *bed;
bb1dd176 4224 struct _bfd_sparc_elf_link_hash_entry *eh;
a8735c82 4225 bfd_boolean resolved_to_zero;
22b75d0a
DM		 4226
4227 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4228 BFD_ASSERT (htab != NULL);
39817122 4229 bed = get_elf_backend_data (output_bfd);
22b75d0a 4230
bb1dd176
QZ		 4231 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4232
4233 /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4234 resolved undefined weak symbols in executable so that their
4235 references have value 0 at run-time. */
a8735c82 4236 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
bb1dd176 4237
22b75d0a
DM		 4238 if (h->plt.offset != (bfd_vma) -1)
4239 {
4240 asection *splt;
4241 asection *srela;
4242 Elf_Internal_Rela rela;
4243 bfd_byte *loc;
910600e9 4244 bfd_vma r_offset, got_offset;
22b75d0a
DM		 4245 int rela_index;
4246
d0c9aeb3
DM		 4247 /* When building a static executable, use .iplt and
4248 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4249 if (htab->elf.splt != NULL)
4250 {
4251 splt = htab->elf.splt;
4252 srela = htab->elf.srelplt;
4253 }
4254 else
4255 {
4256 splt = htab->elf.iplt;
4257 srela = htab->elf.irelplt;
4258 }
22b75d0a 4259
d0c9aeb3
DM		 4260 if (splt == NULL || srela == NULL)
4261 abort ();
22b75d0a 4262
22b75d0a 4263 /* Fill in the entry in the .rela.plt section. */
90c14f0c 4264 if (htab->elf.target_os == is_vxworks)
22b75d0a 4265 {
910600e9
RS		 4266 /* Work out the index of this PLT entry. */
4267 rela_index = ((h->plt.offset - htab->plt_header_size)
4268 / htab->plt_entry_size);
4269
4270 /* Calculate the offset of the associated .got.plt entry.
4271 The first three entries are reserved. */
4272 got_offset = (rela_index + 3) * 4;
4273
4274 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4275 rela_index, got_offset);
4276
4277
4278 /* On VxWorks, the relocation points to the .got.plt entry,
4279 not the .plt entry. */
72fbc6e5
DM		 4280 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4281 + htab->elf.sgotplt->output_offset
910600e9 4282 + got_offset);
22b75d0a 4283 rela.r_addend = 0;
d0c9aeb3
DM		 4284 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4285 R_SPARC_JMP_SLOT);
22b75d0a
DM		 4286 }
4287 else
4288 {
d0c9aeb3
DM		 4289 bfd_boolean ifunc = FALSE;
4290
910600e9
RS		 4291 /* Fill in the entry in the procedure linkage table. */
4292 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4293 h->plt.offset, splt->size,
4294 &r_offset);
4295
d0c9aeb3
DM		 4296 if (h == NULL
4297 || h->dynindx == -1
0e1862bb 4298 || ((bfd_link_executable (info)
d0c9aeb3
DM		 4299 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4300 && h->def_regular
4301 && h->type == STT_GNU_IFUNC))
4302 {
4303 ifunc = TRUE;
4304 BFD_ASSERT (h == NULL
4305 || (h->type == STT_GNU_IFUNC
4306 && h->def_regular
4307 && (h->root.type == bfd_link_hash_defined
4308 || h->root.type == bfd_link_hash_defweak)));
4309 }
4310
910600e9
RS		 4311 rela.r_offset = r_offset
4312 + (splt->output_section->vma + splt->output_offset);
d0c9aeb3
DM		 4313 if (ABI_64_P (output_bfd)
4314 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
910600e9 4315 {
d0c9aeb3
DM		 4316 if (ifunc)
4317 {
4318 rela.r_addend = (h->root.u.def.section->output_section->vma
4319 + h->root.u.def.section->output_offset
4320 + h->root.u.def.value);
4321 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4322 R_SPARC_IRELATIVE);
4323 }
4324 else
4325 {
4326 rela.r_addend = (-(h->plt.offset + 4)
4327 - splt->output_section->vma
4328 - splt->output_offset);
4329 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4330 R_SPARC_JMP_SLOT);
4331 }
910600e9
RS		 4332 }
4333 else
4334 {
d0c9aeb3
DM		 4335 if (ifunc)
4336 {
4337 rela.r_addend = (h->root.u.def.section->output_section->vma
4338 + h->root.u.def.section->output_offset
4339 + h->root.u.def.value);
4340 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4341 R_SPARC_JMP_IREL);
4342 }
4343 else
4344 {
4345 rela.r_addend = 0;
4346 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4347 R_SPARC_JMP_SLOT);
4348 }
910600e9 4349 }
22b75d0a 4350 }
22b75d0a
DM		 4351
4352 /* Adjust for the first 4 reserved elements in the .plt section
4353 when setting the offset in the .rela.plt section.
4354 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4355 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4356
4357 loc = srela->contents;
39817122
RS		 4358 loc += rela_index * bed->s->sizeof_rela;
4359 bed->s->swap_reloca_out (output_bfd, &rela, loc);
22b75d0a 4360
a8735c82 4361 if (!resolved_to_zero && !h->def_regular)
22b75d0a
DM		 4362 {
4363 /* Mark the symbol as undefined, rather than as defined in
4364 the .plt section. Leave the value alone. */
4365 sym->st_shndx = SHN_UNDEF;
4366 /* If the symbol is weak, we do need to clear the value.
4367 Otherwise, the PLT entry would provide a definition for
4368 the symbol even if the symbol wasn't defined anywhere,
4369 and so the symbol would never be NULL. */
4370 if (!h->ref_regular_nonweak)
4371 sym->st_value = 0;
4372 }
4373 }
4374
a8735c82
EB		 4375 /* Don't generate dynamic GOT relocation against resolved undefined weak
4376 symbols in an executable. */
22b75d0a
DM		 4377 if (h->got.offset != (bfd_vma) -1
4378 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
bb1dd176 4379 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
a8735c82
EB		 4380 && !(h->root.type == bfd_link_hash_undefweak
4381 && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4382 || resolved_to_zero)))
22b75d0a
DM		 4383 {
4384 asection *sgot;
4385 asection *srela;
4386 Elf_Internal_Rela rela;
4387
4388 /* This symbol has an entry in the GOT. Set it up. */
4389
72fbc6e5
DM		 4390 sgot = htab->elf.sgot;
4391 srela = htab->elf.srelgot;
22b75d0a
DM		 4392 BFD_ASSERT (sgot != NULL && srela != NULL);
4393
4394 rela.r_offset = (sgot->output_section->vma
4395 + sgot->output_offset
4396 + (h->got.offset &~ (bfd_vma) 1));
4397
4398 /* If this is a -Bsymbolic link, and the symbol is defined
4399 locally, we just want to emit a RELATIVE reloc. Likewise if
4400 the symbol was forced to be local because of a version file.
4401 The entry in the global offset table will already have been
4402 initialized in the relocate_section function. */
0e1862bb 4403 if (! bfd_link_pic (info)
d0c9aeb3
DM		 4404 && h->type == STT_GNU_IFUNC
4405 && h->def_regular)
4406 {
4407 asection *plt;
4408
4409 /* We load the GOT entry with the PLT entry. */
4410 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4411 SPARC_ELF_PUT_WORD (htab, output_bfd,
4412 (plt->output_section->vma
4413 + plt->output_offset + h->plt.offset),
4414 htab->elf.sgot->contents
4415 + (h->got.offset & ~(bfd_vma) 1));
4416 return TRUE;
4417 }
a8735c82
EB		 4418
4419 if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
22b75d0a
DM		 4420 {
4421 asection *sec = h->root.u.def.section;
d0c9aeb3
DM		 4422 if (h->type == STT_GNU_IFUNC)
4423 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4424 else
4425 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
22b75d0a
DM		 4426 rela.r_addend = (h->root.u.def.value
4427 + sec->output_section->vma
4428 + sec->output_offset);
4429 }
4430 else
4431 {
4432 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4433 rela.r_addend = 0;
4434 }
4435
4436 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4437 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
39817122 4438 sparc_elf_append_rela (output_bfd, srela, &rela);
22b75d0a
DM		 4439 }
4440
4441 if (h->needs_copy)
4442 {
4443 asection *s;
4444 Elf_Internal_Rela rela;
4445
4446 /* This symbols needs a copy reloc. Set it up. */
4447 BFD_ASSERT (h->dynindx != -1);
4448
22b75d0a
DM		 4449 rela.r_offset = (h->root.u.def.value
4450 + h->root.u.def.section->output_section->vma
4451 + h->root.u.def.section->output_offset);
4452 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4453 rela.r_addend = 0;
afbf7e8e 4454 if (h->root.u.def.section == htab->elf.sdynrelro)
5474d94f
AM		 4455 s = htab->elf.sreldynrelro;
4456 else
4457 s = htab->elf.srelbss;
39817122 4458 sparc_elf_append_rela (output_bfd, s, &rela);
22b75d0a
DM		 4459 }
4460
910600e9
RS		 4461 /* Mark some specially defined symbols as absolute. On VxWorks,
4462 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4463 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
d0c9aeb3 4464 if (sym != NULL
9637f6ef 4465 && (h == htab->elf.hdynamic
90c14f0c 4466 || (htab->elf.target_os != is_vxworks
d0c9aeb3 4467 && (h == htab->elf.hgot || h == htab->elf.hplt))))
22b75d0a
DM		 4468 sym->st_shndx = SHN_ABS;
4469
4470 return TRUE;
4471}
4472
4473/* Finish up the dynamic sections. */
4474
22b75d0a 4475static bfd_boolean
39817122
RS		 4476sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4477 bfd *dynobj, asection *sdyn,
4478 asection *splt ATTRIBUTE_UNUSED)
22b75d0a 4479{
910600e9 4480 struct _bfd_sparc_elf_link_hash_table *htab;
39817122
RS		 4481 const struct elf_backend_data *bed;
4482 bfd_byte *dyncon, *dynconend;
4483 size_t dynsize;
4484 int stt_regidx = -1;
4485 bfd_boolean abi_64_p;
22b75d0a 4486
910600e9 4487 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4488 BFD_ASSERT (htab != NULL);
39817122
RS		 4489 bed = get_elf_backend_data (output_bfd);
4490 dynsize = bed->s->sizeof_dyn;
4491 dynconend = sdyn->contents + sdyn->size;
4492 abi_64_p = ABI_64_P (output_bfd);
4493 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
22b75d0a
DM		 4494 {
4495 Elf_Internal_Dyn dyn;
22b75d0a
DM		 4496 bfd_boolean size;
4497
39817122 4498 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
22b75d0a 4499
90c14f0c 4500 if (htab->elf.target_os == is_vxworks && dyn.d_tag == DT_PLTGOT)
22b75d0a 4501 {
910600e9
RS		 4502 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4503 not to the start of the PLT. */
72fbc6e5 4504 if (htab->elf.sgotplt)
910600e9 4505 {
72fbc6e5
DM		 4506 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4507 + htab->elf.sgotplt->output_offset);
39817122 4508 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
910600e9
RS		 4509 }
4510 }
90c14f0c 4511 else if (htab->elf.target_os == is_vxworks
7a2b07ff
NS		 4512 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4513 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
39817122
RS		 4514 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4515 {
4516 if (stt_regidx == -1)
4517 {
4518 stt_regidx =
4519 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4520 if (stt_regidx == -1)
4521 return FALSE;
4522 }
4523 dyn.d_un.d_val = stt_regidx++;
4524 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4525 }
910600e9
RS		 4526 else
4527 {
ce558b89
AM		 4528 asection *s;
4529
910600e9
RS		 4530 switch (dyn.d_tag)
4531 {
ce558b89
AM		 4532 case DT_PLTGOT:
4533 s = htab->elf.splt;
4534 size = FALSE;
4535 break;
4536 case DT_PLTRELSZ:
4537 s = htab->elf.srelplt;
4538 size = TRUE;
4539 break;
4540 case DT_JMPREL:
4541 s = htab->elf.srelplt;
4542 size = FALSE;
4543 break;
4544 default:
4545 continue;
910600e9 4546 }
22b75d0a 4547
ce558b89
AM		 4548 if (s == NULL)
4549 dyn.d_un.d_val = 0;
4550 else
22b75d0a 4551 {
ce558b89
AM		 4552 if (!size)
4553 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
22b75d0a 4554 else
ce558b89 4555 dyn.d_un.d_val = s->size;
22b75d0a 4556 }
ce558b89 4557 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
22b75d0a
DM		 4558 }
4559 }
4560 return TRUE;
4561}
4562
910600e9
RS		 4563/* Install the first PLT entry in a VxWorks executable and make sure that
4564 .rela.plt.unloaded relocations have the correct symbol indexes. */
4565
4566static void
4567sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4568{
4569 struct _bfd_sparc_elf_link_hash_table *htab;
4570 Elf_Internal_Rela rela;
4571 bfd_vma got_base;
4572 bfd_byte *loc;
4573
4574 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4575 BFD_ASSERT (htab != NULL);
910600e9
RS		 4576
4577 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4578 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4579 + htab->elf.hgot->root.u.def.section->output_offset
4580 + htab->elf.hgot->root.u.def.value);
4581
4582 /* Install the initial PLT entry. */
4583 bfd_put_32 (output_bfd,
4584 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
72fbc6e5 4585 htab->elf.splt->contents);
910600e9
RS		 4586 bfd_put_32 (output_bfd,
4587 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
72fbc6e5 4588 htab->elf.splt->contents + 4);
910600e9
RS		 4589 bfd_put_32 (output_bfd,
4590 sparc_vxworks_exec_plt0_entry[2],
72fbc6e5 4591 htab->elf.splt->contents + 8);
910600e9
RS		 4592 bfd_put_32 (output_bfd,
4593 sparc_vxworks_exec_plt0_entry[3],
72fbc6e5 4594 htab->elf.splt->contents + 12);
910600e9
RS		 4595 bfd_put_32 (output_bfd,
4596 sparc_vxworks_exec_plt0_entry[4],
72fbc6e5 4597 htab->elf.splt->contents + 16);
910600e9
RS		 4598
4599 loc = htab->srelplt2->contents;
4600
4601 /* Add an unloaded relocation for the initial entry's "sethi". */
72fbc6e5
DM		 4602 rela.r_offset = (htab->elf.splt->output_section->vma
4603 + htab->elf.splt->output_offset);
910600e9
RS		 4604 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4605 rela.r_addend = 8;
4606 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4607 loc += sizeof (Elf32_External_Rela);
4608
4609 /* Likewise the following "or". */
4610 rela.r_offset += 4;
4611 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4612 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4613 loc += sizeof (Elf32_External_Rela);
4614
4615 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4616 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4617 in which symbols were output. */
4618 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4619 {
4620 Elf_Internal_Rela rel;
4621
4622 /* The entry's initial "sethi" (against _G_O_T_). */
4623 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4624 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4625 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4626 loc += sizeof (Elf32_External_Rela);
4627
4628 /* The following "or" (also against _G_O_T_). */
4629 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4630 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4631 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4632 loc += sizeof (Elf32_External_Rela);
4633
4634 /* The .got.plt entry (against _P_L_T_). */
4635 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4636 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4637 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4638 loc += sizeof (Elf32_External_Rela);
4639 }
4640}
4641
4642/* Install the first PLT entry in a VxWorks shared object. */
4643
4644static void
4645sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4646{
4647 struct _bfd_sparc_elf_link_hash_table *htab;
4648 unsigned int i;
4649
4650 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4651 BFD_ASSERT (htab != NULL);
4652
910600e9
RS		 4653 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4654 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
72fbc6e5 4655 htab->elf.splt->contents + i * 4);
910600e9
RS		 4656}
4657
d0c9aeb3
DM		 4658/* Finish up local dynamic symbol handling. We set the contents of
4659 various dynamic sections here. */
4660
4661static bfd_boolean
4662finish_local_dynamic_symbol (void **slot, void *inf)
4663{
4664 struct elf_link_hash_entry *h
4665 = (struct elf_link_hash_entry *) *slot;
4666 struct bfd_link_info *info
68ffbac6 4667 = (struct bfd_link_info *) inf;
d0c9aeb3
DM		 4668
4669 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4670 h, NULL);
4671}
4672
bb1dd176
QZ		 4673/* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4674 here since undefined weak symbol may not be dynamic and may not be
4675 called for _bfd_sparc_elf_finish_dynamic_symbol. */
4676
4677static bfd_boolean
4678pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
07d6d2b8 4679 void *inf)
bb1dd176
QZ		 4680{
4681 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4682 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4683
4684 if (h->root.type != bfd_link_hash_undefweak
4685 || h->dynindx != -1)
4686 return TRUE;
4687
4688 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
07d6d2b8 4689 h, NULL);
bb1dd176
QZ		 4690}
4691
22b75d0a
DM		 4692bfd_boolean
4693_bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4694{
4695 bfd *dynobj;
4696 asection *sdyn;
4697 struct _bfd_sparc_elf_link_hash_table *htab;
4698
4699 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4700 BFD_ASSERT (htab != NULL);
22b75d0a 4701 dynobj = htab->elf.dynobj;
4b24dd1a 4702
6d0a6093
JM		 4703 /* We arranged in size_dynamic_sections to put the STT_REGISTER
4704 entries at the end of the dynlocal list, so they came at the end
4705 of the local symbols in the symtab. Except that they aren't
4706 STB_LOCAL, so we need to back up symtab->sh_info. */
4707 if (ABI_64_P (output_bfd)
4708 && elf_hash_table (info)->dynlocal)
4709 {
4710 asection *dynsymsec = bfd_get_linker_section (dynobj, ".dynsym");
4711 struct elf_link_local_dynamic_entry *e;
4b24dd1a 4712
6d0a6093
JM		 4713 for (e = elf_hash_table (info)->dynlocal; e ; e = e->next)
4714 if (e->input_indx == -1)
4715 break;
4716 if (e)
4717 elf_section_data (dynsymsec->output_section)->this_hdr.sh_info
4718 = e->dynindx;
4719 }
4b24dd1a 4720
3d4d4302 4721 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
22b75d0a
DM		 4722
4723 if (elf_hash_table (info)->dynamic_sections_created)
4724 {
4725 asection *splt;
22b75d0a 4726
3d4d4302 4727 splt = htab->elf.splt;
22b75d0a
DM		 4728 BFD_ASSERT (splt != NULL && sdyn != NULL);
4729
39817122
RS		 4730 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4731 return FALSE;
22b75d0a
DM		 4732
4733 /* Initialize the contents of the .plt section. */
4734 if (splt->size > 0)
4735 {
90c14f0c 4736 if (htab->elf.target_os == is_vxworks)
910600e9 4737 {
0e1862bb 4738 if (bfd_link_pic (info))
910600e9
RS		 4739 sparc_vxworks_finish_shared_plt (output_bfd, info);
4740 else
4741 sparc_vxworks_finish_exec_plt (output_bfd, info);
4742 }
22b75d0a
DM		 4743 else
4744 {
910600e9
RS		 4745 memset (splt->contents, 0, htab->plt_header_size);
4746 if (!ABI_64_P (output_bfd))
4747 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4748 splt->contents + splt->size - 4);
22b75d0a
DM		 4749 }
4750 }
4751
387f8054 4752 if (elf_section_data (splt->output_section) != NULL)
07d6d2b8 4753 elf_section_data (splt->output_section)->this_hdr.sh_entsize
90c14f0c
L		 4754 = ((htab->elf.target_os == is_vxworks
4755 || !ABI_64_P (output_bfd))
07d6d2b8 4756 ? 0 : htab->plt_entry_size);
22b75d0a
DM		 4757 }
4758
4759 /* Set the first entry in the global offset table to the address of
4760 the dynamic section. */
72fbc6e5 4761 if (htab->elf.sgot && htab->elf.sgot->size > 0)
22b75d0a
DM		 4762 {
4763 bfd_vma val = (sdyn ?
4764 sdyn->output_section->vma + sdyn->output_offset :
4765 0);
4766
72fbc6e5 4767 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
22b75d0a
DM		 4768 }
4769
72fbc6e5
DM		 4770 if (htab->elf.sgot)
4771 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
22b75d0a
DM		 4772 SPARC_ELF_WORD_BYTES (htab);
4773
d0c9aeb3
DM		 4774 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4775 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4776
bb1dd176
QZ		 4777 /* Fill PLT entries for undefined weak symbols in PIE. */
4778 if (bfd_link_pie (info))
4779 bfd_hash_traverse (&info->hash->table,
07d6d2b8
AM		 4780 pie_finish_undefweak_symbol,
4781 info);
22b75d0a
DM		 4782 return TRUE;
4783}
4784
4785\f
4786/* Set the right machine number for a SPARC ELF file. */
4787
4788bfd_boolean
4789_bfd_sparc_elf_object_p (bfd *abfd)
4790{
4f26fb3a
JM		 4791 obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
4792 obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
4793 obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
4794
4795 unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
4796 unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
07d6d2b8
AM		 4797 | ELF_SPARC_HWCAP_VIS3
4798 | ELF_SPARC_HWCAP_HPC);
4f26fb3a 4799 unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
07d6d2b8
AM		 4800 | ELF_SPARC_HWCAP_DES
4801 | ELF_SPARC_HWCAP_KASUMI
4802 | ELF_SPARC_HWCAP_CAMELLIA
4803 | ELF_SPARC_HWCAP_MD5
4804 | ELF_SPARC_HWCAP_SHA1
4805 | ELF_SPARC_HWCAP_SHA256
4806 | ELF_SPARC_HWCAP_SHA512
4807 | ELF_SPARC_HWCAP_MPMUL
4808 | ELF_SPARC_HWCAP_MONT
4809 | ELF_SPARC_HWCAP_CRC32C
4810 | ELF_SPARC_HWCAP_CBCOND
4811 | ELF_SPARC_HWCAP_PAUSE);
4f26fb3a 4812 unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
07d6d2b8 4813 | ELF_SPARC_HWCAP_IMA);
4f26fb3a 4814 unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
07d6d2b8
AM		 4815 | ELF_SPARC_HWCAP2_MWAIT
4816 | ELF_SPARC_HWCAP2_XMPMUL
4817 | ELF_SPARC_HWCAP2_XMONT);
64517994 4818 unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6
07d6d2b8
AM		 4819 | ELF_SPARC_HWCAP2_ONADDSUB
4820 | ELF_SPARC_HWCAP2_ONMUL
4821 | ELF_SPARC_HWCAP2_ONDIV
4822 | ELF_SPARC_HWCAP2_DICTUNP
4823 | ELF_SPARC_HWCAP2_FPCMPSHL
4824 | ELF_SPARC_HWCAP2_RLE
4825 | ELF_SPARC_HWCAP2_SHA3);
4f26fb3a 4826
22b75d0a
DM		 4827 if (ABI_64_P (abfd))
4828 {
4829 unsigned long mach = bfd_mach_sparc_v9;
4830
64517994 4831 if (hwcaps2->i & m8_hwcaps2_mask)
07d6d2b8 4832 mach = bfd_mach_sparc_v9m8;
64517994 4833 else if (hwcaps2->i & v9m_hwcaps2_mask)
07d6d2b8 4834 mach = bfd_mach_sparc_v9m;
4f26fb3a 4835 else if (hwcaps->i & v9v_hwcaps_mask)
07d6d2b8 4836 mach = bfd_mach_sparc_v9v;
4f26fb3a 4837 else if (hwcaps->i & v9e_hwcaps_mask)
07d6d2b8 4838 mach = bfd_mach_sparc_v9e;
4f26fb3a 4839 else if (hwcaps->i & v9d_hwcaps_mask)
07d6d2b8 4840 mach = bfd_mach_sparc_v9d;
4f26fb3a 4841 else if (hwcaps->i & v9c_hwcaps_mask)
07d6d2b8 4842 mach = bfd_mach_sparc_v9c;
4f26fb3a 4843 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
22b75d0a
DM		 4844 mach = bfd_mach_sparc_v9b;
4845 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4846 mach = bfd_mach_sparc_v9a;
4847 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4848 }
4849 else
4850 {
4851 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4852 {
07d6d2b8
AM		 4853 if (hwcaps2->i & m8_hwcaps2_mask)
4854 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4855 bfd_mach_sparc_v8plusm8);
4856 else if (hwcaps2->i & v9m_hwcaps2_mask)
4f26fb3a
JM		 4857 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4858 bfd_mach_sparc_v8plusm);
07d6d2b8
AM		 4859 else if (hwcaps->i & v9v_hwcaps_mask)
4860 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a 4861 bfd_mach_sparc_v8plusv);
07d6d2b8
AM		 4862 else if (hwcaps->i & v9e_hwcaps_mask)
4863 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a 4864 bfd_mach_sparc_v8pluse);
07d6d2b8
AM		 4865 else if (hwcaps->i & v9d_hwcaps_mask)
4866 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a 4867 bfd_mach_sparc_v8plusd);
07d6d2b8
AM		 4868 else if (hwcaps->i & v9c_hwcaps_mask)
4869 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a
JM		 4870 bfd_mach_sparc_v8plusc);
4871 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
22b75d0a
DM		 4872 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4873 bfd_mach_sparc_v8plusb);
4874 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4875 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4876 bfd_mach_sparc_v8plusa);
4877 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4878 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4879 bfd_mach_sparc_v8plus);
4880 else
4881 return FALSE;
4882 }
4883 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4884 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4885 bfd_mach_sparc_sparclite_le);
4886 else
4887 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4888 }
4889}
4890
4891/* Return address for Ith PLT stub in section PLT, for relocation REL
4892 or (bfd_vma) -1 if it should not be included. */
4893
4894bfd_vma
4895_bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
4896{
4897 if (ABI_64_P (plt->owner))
4898 {
4899 bfd_vma j;
4900
4901 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
4902 if (i < PLT64_LARGE_THRESHOLD)
4903 return plt->vma + i * PLT64_ENTRY_SIZE;
4904
4905 j = (i - PLT64_LARGE_THRESHOLD) % 160;
4906 i -= j;
4907 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
4908 }
4909 else
4910 return rel->address;
4911}
9e8c70f9
DM		 4912
4913/* Merge backend specific data from an object file to the output
4914 object file when linking. */
4915
4916bfd_boolean
50e03d47 4917_bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
9e8c70f9 4918{
50e03d47 4919 bfd *obfd = info->output_bfd;
9e8c70f9
DM		 4920 obj_attribute *in_attr, *in_attrs;
4921 obj_attribute *out_attr, *out_attrs;
4922
4923 if (!elf_known_obj_attributes_proc (obfd)[0].i)
4924 {
4925 /* This is the first object. Copy the attributes. */
4926 _bfd_elf_copy_obj_attributes (ibfd, obfd);
4927
4928 /* Use the Tag_null value to indicate the attributes have been
4929 initialized. */
4930 elf_known_obj_attributes_proc (obfd)[0].i = 1;
4931
4932 return TRUE;
4933 }
4934
4935 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4936 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4937
4938 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
4939 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
1b786873 4940
3d68f91c
JM		 4941 out_attr->i |= in_attr->i;
4942 out_attr->type = 1;
9e8c70f9 4943
3d68f91c
JM		 4944 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
4945 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
1b786873 4946
9e8c70f9 4947 out_attr->i |= in_attr->i;
209be8d2 4948 out_attr->type = 1;
9e8c70f9
DM		 4949
4950 /* Merge Tag_compatibility attributes and any common GNU ones. */
50e03d47 4951 _bfd_elf_merge_object_attributes (ibfd, info);
9e8c70f9
DM		 4952
4953 return TRUE;
4954}
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