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Check if __start/__stop symbols are referenced by shared objects
[deliverable/binutils-gdb.git] / bfd / elfxx-sparc.c
CommitLineData
22b75d0a 1/* SPARC-specific support for ELF
219d1afa 2 Copyright (C) 2005-2018 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
DM		 313reloc_howto_type *
314_bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
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
DM		 587 }
588 bfd_set_error (bfd_error_bad_value);
589 return NULL;
590}
591
157090f7
AM		 592reloc_howto_type *
593_bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
594 const char *r_name)
595{
596 unsigned int i;
597
598 for (i = 0;
599 i < (sizeof (_bfd_sparc_elf_howto_table)
600 / sizeof (_bfd_sparc_elf_howto_table[0]));
601 i++)
602 if (_bfd_sparc_elf_howto_table[i].name != NULL
603 && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
604 return &_bfd_sparc_elf_howto_table[i];
605
606 if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
607 return &sparc_vtinherit_howto;
608 if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
609 return &sparc_vtentry_howto;
610 if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
611 return &sparc_rev32_howto;
612
613 return NULL;
614}
615
22b75d0a
DM		 616reloc_howto_type *
617_bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type)
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 {
4eca0228 639 _bfd_error_handler (_("invalid relocation type %d"), (int) r_type);
d0fb9a8d
JJ		 640 r_type = R_SPARC_NONE;
641 }
22b75d0a
DM		 642 return &_bfd_sparc_elf_howto_table[r_type];
643 }
644}
645
646/* Both 32-bit and 64-bit sparc encode this in an identical manner,
647 so just take advantage of that. */
648#define SPARC_ELF_R_TYPE(r_info) \
649 ((r_info) & 0xff)
650
651void
652_bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
653 Elf_Internal_Rela *dst)
654{
655 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
656
657 cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type);
658}
659\f
660
661/* The nop opcode we use. */
662#define SPARC_NOP 0x01000000
663
664#define SPARC_INSN_BYTES 4
665
bb1dd176
QZ		 666/* Is an undefined weak symbol resolved to 0 ?
667 Reference to an undefined weak symbol is resolved to 0 when
668 building an executable if it isn't dynamic and
669 1. Has non-GOT/non-PLT relocations in text section.
670 Or
671 2. Has no GOT/PLT relocation. */
07d6d2b8
AM		 672#define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
673 ((EH)->elf.root.type == bfd_link_hash_undefweak \
674 && bfd_link_executable (INFO) \
675 && (_bfd_sparc_elf_hash_table (INFO)->interp == NULL \
676 || !(EH)->has_got_reloc \
677 || (EH)->has_non_got_reloc \
bb1dd176
QZ		 678 || !(INFO)->dynamic_undefined_weak))
679
22b75d0a
DM		 680/* SPARC ELF linker hash entry. */
681
682struct _bfd_sparc_elf_link_hash_entry
683{
684 struct elf_link_hash_entry elf;
685
686 /* Track dynamic relocs copied for this symbol. */
3bf083ed 687 struct elf_dyn_relocs *dyn_relocs;
22b75d0a
DM		 688
689#define GOT_UNKNOWN 0
690#define GOT_NORMAL 1
691#define GOT_TLS_GD 2
692#define GOT_TLS_IE 3
693 unsigned char tls_type;
bb1dd176
QZ		 694
695 /* Symbol has GOT or PLT relocations. */
696 unsigned int has_got_reloc : 1;
697
698 /* Symbol has non-GOT/non-PLT relocations in text sections. */
699 unsigned int has_non_got_reloc : 1;
700
22b75d0a
DM		 701};
702
703#define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
704
705struct _bfd_sparc_elf_obj_tdata
706{
707 struct elf_obj_tdata root;
708
709 /* tls_type for each local got entry. */
710 char *local_got_tls_type;
711
712 /* TRUE if TLS GD relocs has been seen for this object. */
713 bfd_boolean has_tlsgd;
714};
715
716#define _bfd_sparc_elf_tdata(abfd) \
717 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
718
719#define _bfd_sparc_elf_local_got_tls_type(abfd) \
720 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
721
0ffa91dd
NC		 722#define is_sparc_elf(bfd) \
723 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
724 && elf_tdata (bfd) != NULL \
4dfe6ac6 725 && elf_object_id (bfd) == SPARC_ELF_DATA)
0ffa91dd 726
22b75d0a
DM		 727bfd_boolean
728_bfd_sparc_elf_mkobject (bfd *abfd)
729{
0ffa91dd 730 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
4dfe6ac6 731 SPARC_ELF_DATA);
22b75d0a
DM		 732}
733
734static void
91d6fa6a 735sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 736{
91d6fa6a 737 bfd_put_32 (abfd, val, ptr);
22b75d0a
DM		 738}
739
740static void
91d6fa6a 741sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 742{
91d6fa6a 743 bfd_put_64 (abfd, val, ptr);
22b75d0a
DM		 744}
745
746static void
39817122 747sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
22b75d0a 748{
39817122
RS		 749 const struct elf_backend_data *bed;
750 bfd_byte *loc;
22b75d0a 751
39817122
RS		 752 bed = get_elf_backend_data (abfd);
753 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
754 bed->s->swap_reloca_out (abfd, rel, loc);
22b75d0a
DM		 755}
756
757static bfd_vma
e459dc7b 758sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 759 bfd_vma rel_index ATTRIBUTE_UNUSED,
e459dc7b 760 bfd_vma type ATTRIBUTE_UNUSED)
22b75d0a 761{
91d6fa6a 762 return ELF64_R_INFO (rel_index,
22b75d0a
DM		 763 (in_rel ?
764 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
765 type) : type));
766}
767
768static bfd_vma
769sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 770 bfd_vma rel_index, bfd_vma type)
22b75d0a 771{
91d6fa6a 772 return ELF32_R_INFO (rel_index, type);
22b75d0a
DM		 773}
774
775static bfd_vma
776sparc_elf_r_symndx_64 (bfd_vma r_info)
777{
e8be8da4
DM		 778 bfd_vma r_symndx = ELF32_R_SYM (r_info);
779 return (r_symndx >> 24);
22b75d0a
DM		 780}
781
782static bfd_vma
783sparc_elf_r_symndx_32 (bfd_vma r_info)
784{
785 return ELF32_R_SYM (r_info);
786}
787
788/* PLT/GOT stuff */
789
790#define PLT32_ENTRY_SIZE 12
791#define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
792
793/* The first four entries in a 32-bit procedure linkage table are reserved,
794 and the initial contents are unimportant (we zero them out).
795 Subsequent entries look like this. See the SVR4 ABI SPARC
796 supplement to see how this works. */
797
798/* sethi %hi(.-.plt0),%g1. We fill in the address later. */
799#define PLT32_ENTRY_WORD0 0x03000000
800/* b,a .plt0. We fill in the offset later. */
801#define PLT32_ENTRY_WORD1 0x30800000
802/* nop. */
803#define PLT32_ENTRY_WORD2 SPARC_NOP
804
805static int
806sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
807 bfd_vma max ATTRIBUTE_UNUSED,
808 bfd_vma *r_offset)
809{
810 bfd_put_32 (output_bfd,
811 PLT32_ENTRY_WORD0 + offset,
812 splt->contents + offset);
813 bfd_put_32 (output_bfd,
814 (PLT32_ENTRY_WORD1
815 + (((- (offset + 4)) >> 2) & 0x3fffff)),
816 splt->contents + offset + 4);
817 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
818 splt->contents + offset + 8);
819
820 *r_offset = offset;
821
822 return offset / PLT32_ENTRY_SIZE - 4;
823}
824
825/* Both the headers and the entries are icache aligned. */
826#define PLT64_ENTRY_SIZE 32
827#define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
828#define PLT64_LARGE_THRESHOLD 32768
829
830static int
831sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
832 bfd_vma max, bfd_vma *r_offset)
833{
834 unsigned char *entry = splt->contents + offset;
835 const unsigned int nop = SPARC_NOP;
91d6fa6a 836 int plt_index;
22b75d0a
DM		 837
838 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
839 {
840 unsigned int sethi, ba;
841
842 *r_offset = offset;
843
91d6fa6a 844 plt_index = (offset / PLT64_ENTRY_SIZE);
22b75d0a 845
91d6fa6a 846 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
22b75d0a
DM		 847 ba = 0x30680000
848 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
849
850 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
851 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
852 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
853 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
854 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
855 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
856 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
857 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
858 }
859 else
860 {
861 unsigned char *ptr;
862 unsigned int ldx;
863 int block, last_block, ofs, last_ofs, chunks_this_block;
864 const int insn_chunk_size = (6 * 4);
865 const int ptr_chunk_size = (1 * 8);
866 const int entries_per_block = 160;
867 const int block_size = entries_per_block * (insn_chunk_size
868 + ptr_chunk_size);
869
870 /* Entries 32768 and higher are grouped into blocks of 160.
871 The blocks are further subdivided into 160 sequences of
872 6 instructions and 160 pointers. If a block does not require
873 the full 160 entries, let's say it requires N, then there
874 will be N sequences of 6 instructions and N pointers. */
875
876 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
877 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
878
879 block = offset / block_size;
880 last_block = max / block_size;
881 if (block != last_block)
882 {
883 chunks_this_block = 160;
884 }
885 else
886 {
887 last_ofs = max % block_size;
888 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
889 }
890
891 ofs = offset % block_size;
892
91d6fa6a 893 plt_index = (PLT64_LARGE_THRESHOLD +
22b75d0a
DM		 894 (block * 160) +
895 (ofs / insn_chunk_size));
896
897 ptr = splt->contents
898 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
899 + (block * block_size)
900 + (chunks_this_block * insn_chunk_size)
901 + (ofs / insn_chunk_size) * ptr_chunk_size;
902
903 *r_offset = (bfd_vma) (ptr - splt->contents);
904
905 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
906
907 /* mov %o7,%g5
908 call .+8
909 nop
910 ldx [%o7+P],%g1
911 jmpl %o7+%g1,%g1
912 mov %g5,%o7 */
913 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
914 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
915 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
07d6d2b8 916 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
22b75d0a
DM		 917 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
918 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
919
920 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
921 }
922
91d6fa6a 923 return plt_index - 4;
22b75d0a
DM		 924}
925
910600e9
RS		 926/* The format of the first PLT entry in a VxWorks executable. */
927static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
928 {
929 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
930 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
931 0xc4008000, /* ld [ %g2 ], %g2 */
932 0x81c08000, /* jmp %g2 */
933 0x01000000 /* nop */
934 };
935
936/* The format of subsequent PLT entries. */
937static const bfd_vma sparc_vxworks_exec_plt_entry[] =
938 {
939 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
940 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
941 0xc2004000, /* ld [ %g1 ], %g1 */
942 0x81c04000, /* jmp %g1 */
943 0x01000000, /* nop */
944 0x03000000, /* sethi %hi(f@pltindex), %g1 */
945 0x10800000, /* b _PLT_resolve */
946 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
947 };
948
949/* The format of the first PLT entry in a VxWorks shared object. */
950static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
951 {
952 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
953 0x81c08000, /* jmp %g2 */
954 0x01000000 /* nop */
955 };
956
957/* The format of subsequent PLT entries. */
958static const bfd_vma sparc_vxworks_shared_plt_entry[] =
959 {
960 0x03000000, /* sethi %hi(f@got), %g1 */
961 0x82106000, /* or %g1, %lo(f@got), %g1 */
962 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
963 0x81c04000, /* jmp %g1 */
964 0x01000000, /* nop */
965 0x03000000, /* sethi %hi(f@pltindex), %g1 */
966 0x10800000, /* b _PLT_resolve */
967 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
968 };
969
22b75d0a
DM		 970#define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
971 htab->put_word(bfd, val, ptr)
972
22b75d0a
DM		 973#define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
974 htab->r_info(in_rel, index, type)
975
976#define SPARC_ELF_R_SYMNDX(htab, r_info) \
977 htab->r_symndx(r_info)
978
979#define SPARC_ELF_WORD_BYTES(htab) \
980 htab->bytes_per_word
981
982#define SPARC_ELF_RELA_BYTES(htab) \
983 htab->bytes_per_rela
984
985#define SPARC_ELF_DTPOFF_RELOC(htab) \
986 htab->dtpoff_reloc
987
988#define SPARC_ELF_DTPMOD_RELOC(htab) \
989 htab->dtpmod_reloc
990
991#define SPARC_ELF_TPOFF_RELOC(htab) \
992 htab->tpoff_reloc
993
994#define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
995 htab->build_plt_entry (obfd, splt, off, max, r_off)
996
997/* Create an entry in an SPARC ELF linker hash table. */
998
999static struct bfd_hash_entry *
1000link_hash_newfunc (struct bfd_hash_entry *entry,
1001 struct bfd_hash_table *table, const char *string)
1002{
1003 /* Allocate the structure if it has not already been allocated by a
1004 subclass. */
1005 if (entry == NULL)
1006 {
1007 entry = bfd_hash_allocate (table,
1008 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1009 if (entry == NULL)
1010 return entry;
1011 }
1012
1013 /* Call the allocation method of the superclass. */
1014 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1015 if (entry != NULL)
1016 {
1017 struct _bfd_sparc_elf_link_hash_entry *eh;
1018
1019 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
1020 eh->dyn_relocs = NULL;
1021 eh->tls_type = GOT_UNKNOWN;
bb1dd176
QZ		 1022 eh->has_got_reloc = 0;
1023 eh->has_non_got_reloc = 0;
22b75d0a
DM		 1024 }
1025
1026 return entry;
1027}
1028
1029/* The name of the dynamic interpreter. This is put in the .interp
1030 section. */
1031
1032#define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1033#define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1034
d0c9aeb3
DM		 1035/* Compute a hash of a local hash entry. We use elf_link_hash_entry
1036 for local symbol so that we can handle local STT_GNU_IFUNC symbols
1037 as global symbol. We reuse indx and dynstr_index for local symbol
1038 hash since they aren't used by global symbols in this backend. */
1039
1040static hashval_t
1041elf_sparc_local_htab_hash (const void *ptr)
1042{
1043 struct elf_link_hash_entry *h
1044 = (struct elf_link_hash_entry *) ptr;
1045 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1046}
1047
1048/* Compare local hash entries. */
1049
1050static int
1051elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1052{
1053 struct elf_link_hash_entry *h1
1054 = (struct elf_link_hash_entry *) ptr1;
1055 struct elf_link_hash_entry *h2
1056 = (struct elf_link_hash_entry *) ptr2;
1057
1058 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1059}
1060
1061/* Find and/or create a hash entry for local symbol. */
1062
1063static struct elf_link_hash_entry *
1064elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1065 bfd *abfd, const Elf_Internal_Rela *rel,
1066 bfd_boolean create)
1067{
1068 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1069 asection *sec = abfd->sections;
1070 unsigned long r_symndx;
1071 hashval_t h;
1072 void **slot;
1073
1074 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1075 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1076
1077 e.elf.indx = sec->id;
1078 e.elf.dynstr_index = r_symndx;
1079 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1080 create ? INSERT : NO_INSERT);
1081
1082 if (!slot)
1083 return NULL;
1084
1085 if (*slot)
1086 {
1087 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1088 return &ret->elf;
1089 }
1090
1091 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1092 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1093 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1094 if (ret)
1095 {
1096 memset (ret, 0, sizeof (*ret));
1097 ret->elf.indx = sec->id;
1098 ret->elf.dynstr_index = r_symndx;
1099 ret->elf.dynindx = -1;
1100 ret->elf.plt.offset = (bfd_vma) -1;
1101 ret->elf.got.offset = (bfd_vma) -1;
1102 *slot = ret;
1103 }
1104 return &ret->elf;
1105}
1106
68faa637
AM		 1107/* Destroy a SPARC ELF linker hash table. */
1108
d495ab0d
AM		 1109static void
1110_bfd_sparc_elf_link_hash_table_free (bfd *obfd)
68faa637
AM		 1111{
1112 struct _bfd_sparc_elf_link_hash_table *htab
d495ab0d 1113 = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
68faa637
AM		 1114
1115 if (htab->loc_hash_table)
1116 htab_delete (htab->loc_hash_table);
1117 if (htab->loc_hash_memory)
1118 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
d495ab0d 1119 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM		 1120}
1121
22b75d0a
DM		 1122/* Create a SPARC ELF linker hash table. */
1123
1124struct bfd_link_hash_table *
1125_bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1126{
1127 struct _bfd_sparc_elf_link_hash_table *ret;
1128 bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1129
1130 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1131 if (ret == NULL)
1132 return NULL;
1133
1134 if (ABI_64_P (abfd))
1135 {
1136 ret->put_word = sparc_put_word_64;
22b75d0a
DM		 1137 ret->r_info = sparc_elf_r_info_64;
1138 ret->r_symndx = sparc_elf_r_symndx_64;
22b75d0a
DM		 1139 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1140 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1141 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1142 ret->word_align_power = 3;
1143 ret->align_power_max = 4;
1144 ret->bytes_per_word = 8;
1145 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
c2e70a82 1146 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
22b75d0a 1147 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1148
1149 ret->build_plt_entry = sparc64_plt_entry_build;
1150 ret->plt_header_size = PLT64_HEADER_SIZE;
1151 ret->plt_entry_size = PLT64_ENTRY_SIZE;
22b75d0a
DM		 1152 }
1153 else
1154 {
1155 ret->put_word = sparc_put_word_32;
22b75d0a
DM		 1156 ret->r_info = sparc_elf_r_info_32;
1157 ret->r_symndx = sparc_elf_r_symndx_32;
22b75d0a
DM		 1158 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1159 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1160 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1161 ret->word_align_power = 2;
1162 ret->align_power_max = 3;
1163 ret->bytes_per_word = 4;
1164 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
c2e70a82 1165 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
22b75d0a 1166 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1167
1168 ret->build_plt_entry = sparc32_plt_entry_build;
1169 ret->plt_header_size = PLT32_HEADER_SIZE;
1170 ret->plt_entry_size = PLT32_ENTRY_SIZE;
22b75d0a
DM		 1171 }
1172
66eb6687 1173 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC		 1174 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1175 SPARC_ELF_DATA))
22b75d0a
DM		 1176 {
1177 free (ret);
1178 return NULL;
1179 }
1180
d0c9aeb3
DM		 1181 ret->loc_hash_table = htab_try_create (1024,
1182 elf_sparc_local_htab_hash,
1183 elf_sparc_local_htab_eq,
1184 NULL);
1185 ret->loc_hash_memory = objalloc_create ();
1186 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1187 {
d495ab0d 1188 _bfd_sparc_elf_link_hash_table_free (abfd);
d0c9aeb3
DM		 1189 return NULL;
1190 }
d495ab0d 1191 ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
d0c9aeb3 1192
22b75d0a
DM		 1193 return &ret->elf.root;
1194}
1195
22b75d0a
DM		 1196/* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1197 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1198 hash table. */
1199
1200bfd_boolean
1201_bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1202 struct bfd_link_info *info)
1203{
1204 struct _bfd_sparc_elf_link_hash_table *htab;
1205
1206 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 1207 BFD_ASSERT (htab != NULL);
1208
22b75d0a
DM		 1209 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1210 return FALSE;
1211
910600e9
RS		 1212 if (htab->is_vxworks)
1213 {
1214 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1215 return FALSE;
0e1862bb 1216 if (bfd_link_pic (info))
910600e9
RS		 1217 {
1218 htab->plt_header_size
1219 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1220 htab->plt_entry_size
1221 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1222 }
1223 else
1224 {
1225 htab->plt_header_size
1226 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1227 htab->plt_entry_size
1228 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1229 }
1230 }
910600e9 1231
9d19e4fd
AM		 1232 if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1233 || (!bfd_link_pic (info) && !htab->elf.srelbss))
22b75d0a
DM		 1234 abort ();
1235
1236 return TRUE;
1237}
1238
d0c9aeb3
DM		 1239static bfd_boolean
1240create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1241{
1242 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1243 struct elf_link_hash_table *htab = elf_hash_table (info);
1244 flagword flags, pltflags;
1245 asection *s;
1246
1247 if (htab->irelifunc != NULL || htab->iplt != NULL)
1248 return TRUE;
1249
1250 flags = bed->dynamic_sec_flags;
1251 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1252
1253 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1254 if (s == NULL
1255 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1256 return FALSE;
1257 htab->iplt = s;
1258
1259 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1260 flags | SEC_READONLY);
1261 if (s == NULL
1262 || ! bfd_set_section_alignment (abfd, s,
1263 bed->s->log_file_align))
1264 return FALSE;
1265 htab->irelplt = s;
1266
1267 return TRUE;
1268}
1269
22b75d0a
DM		 1270/* Copy the extra info we tack onto an elf_link_hash_entry. */
1271
1272void
fcfa13d2 1273_bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
22b75d0a
DM		 1274 struct elf_link_hash_entry *dir,
1275 struct elf_link_hash_entry *ind)
1276{
1277 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1278
1279 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1280 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1281
1282 if (eind->dyn_relocs != NULL)
1283 {
1284 if (edir->dyn_relocs != NULL)
1285 {
3bf083ed
AM		 1286 struct elf_dyn_relocs **pp;
1287 struct elf_dyn_relocs *p;
22b75d0a 1288
fcfa13d2 1289 /* Add reloc counts against the indirect sym to the direct sym
22b75d0a
DM		 1290 list. Merge any entries against the same section. */
1291 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1292 {
3bf083ed 1293 struct elf_dyn_relocs *q;
22b75d0a
DM		 1294
1295 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1296 if (q->sec == p->sec)
1297 {
1298 q->pc_count += p->pc_count;
1299 q->count += p->count;
1300 *pp = p->next;
1301 break;
1302 }
1303 if (q == NULL)
1304 pp = &p->next;
1305 }
1306 *pp = edir->dyn_relocs;
1307 }
1308
1309 edir->dyn_relocs = eind->dyn_relocs;
1310 eind->dyn_relocs = NULL;
1311 }
1312
1313 if (ind->root.type == bfd_link_hash_indirect
1314 && dir->got.refcount <= 0)
1315 {
1316 edir->tls_type = eind->tls_type;
1317 eind->tls_type = GOT_UNKNOWN;
1318 }
bb1dd176
QZ		 1319
1320 /* Copy has_got_reloc and has_non_got_reloc. */
1321 edir->has_got_reloc |= eind->has_got_reloc;
1322 edir->has_non_got_reloc |= eind->has_non_got_reloc;
1323
fcfa13d2 1324 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
22b75d0a
DM		 1325}
1326
1327static int
1328sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1329 int r_type, int is_local)
1330{
1331 if (! ABI_64_P (abfd)
1332 && r_type == R_SPARC_TLS_GD_HI22
1333 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1334 r_type = R_SPARC_REV32;
1335
bb363086 1336 if (bfd_link_pic (info))
22b75d0a
DM		 1337 return r_type;
1338
1339 switch (r_type)
1340 {
1341 case R_SPARC_TLS_GD_HI22:
1342 if (is_local)
1343 return R_SPARC_TLS_LE_HIX22;
1344 return R_SPARC_TLS_IE_HI22;
1345 case R_SPARC_TLS_GD_LO10:
1346 if (is_local)
1347 return R_SPARC_TLS_LE_LOX10;
1348 return R_SPARC_TLS_IE_LO10;
1349 case R_SPARC_TLS_IE_HI22:
1350 if (is_local)
1351 return R_SPARC_TLS_LE_HIX22;
1352 return r_type;
1353 case R_SPARC_TLS_IE_LO10:
1354 if (is_local)
1355 return R_SPARC_TLS_LE_LOX10;
1356 return r_type;
1357 case R_SPARC_TLS_LDM_HI22:
1358 return R_SPARC_TLS_LE_HIX22;
1359 case R_SPARC_TLS_LDM_LO10:
1360 return R_SPARC_TLS_LE_LOX10;
1361 }
1362
1363 return r_type;
1364}
1365\f
1366/* Look through the relocs for a section during the first phase, and
1367 allocate space in the global offset table or procedure linkage
1368 table. */
1369
1370bfd_boolean
1371_bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1372 asection *sec, const Elf_Internal_Rela *relocs)
1373{
1374 struct _bfd_sparc_elf_link_hash_table *htab;
1375 Elf_Internal_Shdr *symtab_hdr;
1376 struct elf_link_hash_entry **sym_hashes;
22b75d0a
DM		 1377 const Elf_Internal_Rela *rel;
1378 const Elf_Internal_Rela *rel_end;
1379 asection *sreloc;
1380 int num_relocs;
1381 bfd_boolean checked_tlsgd = FALSE;
1382
0e1862bb 1383 if (bfd_link_relocatable (info))
22b75d0a
DM		 1384 return TRUE;
1385
1386 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1387 BFD_ASSERT (htab != NULL);
0ffa91dd 1388 symtab_hdr = &elf_symtab_hdr (abfd);
22b75d0a 1389 sym_hashes = elf_sym_hashes (abfd);
22b75d0a
DM		 1390
1391 sreloc = NULL;
1392
1393 if (ABI_64_P (abfd))
d4730f92 1394 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
22b75d0a
DM		 1395 else
1396 num_relocs = sec->reloc_count;
0ffa91dd
NC		 1397
1398 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1399
d0c9aeb3
DM		 1400 if (htab->elf.dynobj == NULL)
1401 htab->elf.dynobj = abfd;
1402 if (!create_ifunc_sections (htab->elf.dynobj, info))
1403 return FALSE;
1404
22b75d0a
DM		 1405 rel_end = relocs + num_relocs;
1406 for (rel = relocs; rel < rel_end; rel++)
1407 {
1408 unsigned int r_type;
d42c267e 1409 unsigned int r_symndx;
22b75d0a 1410 struct elf_link_hash_entry *h;
bb1dd176 1411 struct _bfd_sparc_elf_link_hash_entry *eh;
d0c9aeb3 1412 Elf_Internal_Sym *isym;
22b75d0a
DM		 1413
1414 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1415 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1416
1417 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1418 {
695344c0 1419 /* xgettext:c-format */
4eca0228 1420 _bfd_error_handler (_("%B: bad symbol index: %d"), abfd, r_symndx);
22b75d0a
DM		 1421 return FALSE;
1422 }
1423
d0c9aeb3 1424 isym = NULL;
22b75d0a 1425 if (r_symndx < symtab_hdr->sh_info)
d0c9aeb3
DM		 1426 {
1427 /* A local symbol. */
1428 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1429 abfd, r_symndx);
1430 if (isym == NULL)
1431 return FALSE;
1432
1433 /* Check relocation against local STT_GNU_IFUNC symbol. */
1434 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1435 {
1436 h = elf_sparc_get_local_sym_hash (htab, abfd, rel,
1437 TRUE);
1438 if (h == NULL)
1439 return FALSE;
68ffbac6 1440
d0c9aeb3
DM		 1441 /* Fake a STT_GNU_IFUNC symbol. */
1442 h->type = STT_GNU_IFUNC;
1443 h->def_regular = 1;
1444 h->ref_regular = 1;
1445 h->forced_local = 1;
1446 h->root.type = bfd_link_hash_defined;
1447 }
1448 else
1449 h = NULL;
1450 }
22b75d0a 1451 else
973a3492
L		 1452 {
1453 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1454 while (h->root.type == bfd_link_hash_indirect
1455 || h->root.type == bfd_link_hash_warning)
1456 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1457 }
22b75d0a 1458
d0c9aeb3
DM		 1459 if (h && h->type == STT_GNU_IFUNC)
1460 {
1461 if (h->def_regular)
b48ca1d4
DM		 1462 {
1463 h->ref_regular = 1;
1464 h->plt.refcount += 1;
1465 }
d0c9aeb3
DM		 1466 }
1467
22b75d0a
DM		 1468 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1469 with R_SPARC_TLS_GD_HI22. */
1470 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1471 switch (r_type)
1472 {
1473 case R_SPARC_TLS_GD_HI22:
1474 {
1475 const Elf_Internal_Rela *relt;
1476
1477 for (relt = rel + 1; relt < rel_end; relt++)
1478 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1479 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1480 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1481 break;
1482 checked_tlsgd = TRUE;
1483 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1484 }
1485 break;
1486 case R_SPARC_TLS_GD_LO10:
1487 case R_SPARC_TLS_GD_ADD:
1488 case R_SPARC_TLS_GD_CALL:
1489 checked_tlsgd = TRUE;
1490 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1491 break;
1492 }
1493
1494 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
bb1dd176
QZ		 1495 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1496
22b75d0a
DM		 1497 switch (r_type)
1498 {
1499 case R_SPARC_TLS_LDM_HI22:
1500 case R_SPARC_TLS_LDM_LO10:
1501 htab->tls_ldm_got.refcount += 1;
07d6d2b8
AM		 1502 if (eh != NULL)
1503 eh->has_got_reloc = 1;
22b75d0a
DM		 1504 break;
1505
1506 case R_SPARC_TLS_LE_HIX22:
1507 case R_SPARC_TLS_LE_LOX10:
bb363086 1508 if (bfd_link_pic (info))
22b75d0a
DM		 1509 goto r_sparc_plt32;
1510 break;
1511
1512 case R_SPARC_TLS_IE_HI22:
1513 case R_SPARC_TLS_IE_LO10:
bb363086 1514 if (bfd_link_pic (info))
22b75d0a
DM		 1515 info->flags |= DF_STATIC_TLS;
1516 /* Fall through */
1517
1518 case R_SPARC_GOT10:
1519 case R_SPARC_GOT13:
1520 case R_SPARC_GOT22:
739f7f82
DM		 1521 case R_SPARC_GOTDATA_HIX22:
1522 case R_SPARC_GOTDATA_LOX10:
1523 case R_SPARC_GOTDATA_OP_HIX22:
1524 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1525 case R_SPARC_TLS_GD_HI22:
1526 case R_SPARC_TLS_GD_LO10:
1527 /* This symbol requires a global offset table entry. */
1528 {
1529 int tls_type, old_tls_type;
1530
1531 switch (r_type)
1532 {
1533 default:
1534 case R_SPARC_GOT10:
1535 case R_SPARC_GOT13:
1536 case R_SPARC_GOT22:
739f7f82
DM		 1537 case R_SPARC_GOTDATA_OP_HIX22:
1538 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1539 tls_type = GOT_NORMAL;
1540 break;
1541 case R_SPARC_TLS_GD_HI22:
1542 case R_SPARC_TLS_GD_LO10:
1543 tls_type = GOT_TLS_GD;
1544 break;
1545 case R_SPARC_TLS_IE_HI22:
1546 case R_SPARC_TLS_IE_LO10:
1547 tls_type = GOT_TLS_IE;
1548 break;
1549 }
1550
1551 if (h != NULL)
1552 {
1553 h->got.refcount += 1;
1554 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1555 }
1556 else
1557 {
1558 bfd_signed_vma *local_got_refcounts;
1559
1560 /* This is a global offset table entry for a local symbol. */
1561 local_got_refcounts = elf_local_got_refcounts (abfd);
1562 if (local_got_refcounts == NULL)
1563 {
1564 bfd_size_type size;
1565
1566 size = symtab_hdr->sh_info;
1567 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1568 local_got_refcounts = ((bfd_signed_vma *)
1569 bfd_zalloc (abfd, size));
1570 if (local_got_refcounts == NULL)
1571 return FALSE;
1572 elf_local_got_refcounts (abfd) = local_got_refcounts;
1573 _bfd_sparc_elf_local_got_tls_type (abfd)
1574 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1575 }
00c50991
DM		 1576 switch (r_type)
1577 {
1578 case R_SPARC_GOTDATA_OP_HIX22:
1579 case R_SPARC_GOTDATA_OP_LOX10:
1580 break;
1581
1582 default:
1583 local_got_refcounts[r_symndx] += 1;
1584 break;
1585 }
22b75d0a
DM		 1586 old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1587 }
1588
1589 /* If a TLS symbol is accessed using IE at least once,
1590 there is no point to use dynamic model for it. */
1591 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1592 && (old_tls_type != GOT_TLS_GD
1593 || tls_type != GOT_TLS_IE))
1594 {
1595 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1596 tls_type = old_tls_type;
1597 else
1598 {
4eca0228 1599 _bfd_error_handler
695344c0 1600 /* xgettext:c-format */
22b75d0a
DM		 1601 (_("%B: `%s' accessed both as normal and thread local symbol"),
1602 abfd, h ? h->root.root.string : "<local>");
1603 return FALSE;
1604 }
1605 }
1606
1607 if (old_tls_type != tls_type)
1608 {
1609 if (h != NULL)
1610 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1611 else
1612 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1613 }
1614 }
1615
72fbc6e5 1616 if (htab->elf.sgot == NULL)
22b75d0a 1617 {
72fbc6e5 1618 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
22b75d0a
DM		 1619 return FALSE;
1620 }
bb1dd176 1621
07d6d2b8
AM		 1622 if (eh != NULL)
1623 eh->has_got_reloc = 1;
22b75d0a
DM		 1624 break;
1625
1626 case R_SPARC_TLS_GD_CALL:
1627 case R_SPARC_TLS_LDM_CALL:
bb363086 1628 if (bfd_link_pic (info))
22b75d0a
DM		 1629 {
1630 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1631 __tls_get_addr. */
bb363086
EB		 1632 h = (struct elf_link_hash_entry *)
1633 bfd_link_hash_lookup (info->hash, "__tls_get_addr", TRUE,
1634 FALSE, TRUE);
22b75d0a
DM		 1635 }
1636 else
1637 break;
1638 /* Fall through */
1639
1640 case R_SPARC_PLT32:
1641 case R_SPARC_WPLT30:
1642 case R_SPARC_HIPLT22:
1643 case R_SPARC_LOPLT10:
1644 case R_SPARC_PCPLT32:
1645 case R_SPARC_PCPLT22:
1646 case R_SPARC_PCPLT10:
1647 case R_SPARC_PLT64:
1648 /* This symbol requires a procedure linkage table entry. We
1649 actually build the entry in adjust_dynamic_symbol,
1650 because this might be a case of linking PIC code without
1651 linking in any dynamic objects, in which case we don't
1652 need to generate a procedure linkage table after all. */
1653
1654 if (h == NULL)
1655 {
1656 if (! ABI_64_P (abfd))
1657 {
1658 /* The Solaris native assembler will generate a WPLT30
1659 reloc for a local symbol if you assemble a call from
1660 one section to another when using -K pic. We treat
1661 it as WDISP30. */
1662 if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
1663 goto r_sparc_plt32;
1664 break;
1665 }
af1fb11f
NC		 1666 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1667 else if (r_type == R_SPARC_WPLT30)
1668 break;
22b75d0a
DM		 1669
1670 /* It does not make sense to have a procedure linkage
07d6d2b8 1671 table entry for a local symbol. */
22b75d0a
DM		 1672 bfd_set_error (bfd_error_bad_value);
1673 return FALSE;
1674 }
1675
1676 h->needs_plt = 1;
1677
1678 {
1679 int this_r_type;
1680
1681 this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
1682 if (this_r_type == R_SPARC_PLT32
1683 || this_r_type == R_SPARC_PLT64)
1684 goto r_sparc_plt32;
1685 }
1686 h->plt.refcount += 1;
bb1dd176 1687
07d6d2b8
AM		 1688 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1689 eh->has_got_reloc = 1;
22b75d0a
DM		 1690 break;
1691
1692 case R_SPARC_PC10:
1693 case R_SPARC_PC22:
1694 case R_SPARC_PC_HH22:
1695 case R_SPARC_PC_HM10:
1696 case R_SPARC_PC_LM22:
1697 if (h != NULL)
1698 h->non_got_ref = 1;
1699
1700 if (h != NULL
1701 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1702 break;
1703 /* Fall through. */
1704
1705 case R_SPARC_DISP8:
1706 case R_SPARC_DISP16:
1707 case R_SPARC_DISP32:
1708 case R_SPARC_DISP64:
1709 case R_SPARC_WDISP30:
1710 case R_SPARC_WDISP22:
1711 case R_SPARC_WDISP19:
1712 case R_SPARC_WDISP16:
2615994e 1713 case R_SPARC_WDISP10:
22b75d0a
DM		 1714 case R_SPARC_8:
1715 case R_SPARC_16:
1716 case R_SPARC_32:
1717 case R_SPARC_HI22:
1718 case R_SPARC_22:
1719 case R_SPARC_13:
1720 case R_SPARC_LO10:
1721 case R_SPARC_UA16:
1722 case R_SPARC_UA32:
1723 case R_SPARC_10:
1724 case R_SPARC_11:
1725 case R_SPARC_64:
1726 case R_SPARC_OLO10:
1727 case R_SPARC_HH22:
1728 case R_SPARC_HM10:
1729 case R_SPARC_LM22:
1730 case R_SPARC_7:
1731 case R_SPARC_5:
1732 case R_SPARC_6:
1733 case R_SPARC_HIX22:
1734 case R_SPARC_LOX10:
1735 case R_SPARC_H44:
1736 case R_SPARC_M44:
1737 case R_SPARC_L44:
2615994e 1738 case R_SPARC_H34:
22b75d0a
DM		 1739 case R_SPARC_UA64:
1740 if (h != NULL)
1741 h->non_got_ref = 1;
1742
07d6d2b8
AM		 1743 if (eh != NULL && (sec->flags & SEC_CODE) != 0)
1744 eh->has_non_got_reloc = 1;
bb1dd176 1745
22b75d0a 1746 r_sparc_plt32:
0e1862bb 1747 if (h != NULL && !bfd_link_pic (info))
22b75d0a
DM		 1748 {
1749 /* We may need a .plt entry if the function this reloc
1750 refers to is in a shared lib. */
1751 h->plt.refcount += 1;
1752 }
1753
1754 /* If we are creating a shared library, and this is a reloc
1755 against a global symbol, or a non PC relative reloc
1756 against a local symbol, then we need to copy the reloc
1757 into the shared library. However, if we are linking with
1758 -Bsymbolic, we do not need to copy a reloc against a
1759 global symbol which is defined in an object we are
1760 including in the link (i.e., DEF_REGULAR is set). At
1761 this point we have not seen all the input files, so it is
1762 possible that DEF_REGULAR is not set now but will be set
1763 later (it is never cleared). In case of a weak definition,
1764 DEF_REGULAR may be cleared later by a strong definition in
1765 a shared library. We account for that possibility below by
1766 storing information in the relocs_copied field of the hash
1767 table entry. A similar situation occurs when creating
1768 shared libraries and symbol visibility changes render the
1769 symbol local.
1770
1771 If on the other hand, we are creating an executable, we
1772 may need to keep relocations for symbols satisfied by a
1773 dynamic library if we manage to avoid copy relocs for the
1774 symbol. */
0e1862bb 1775 if ((bfd_link_pic (info)
22b75d0a
DM		 1776 && (sec->flags & SEC_ALLOC) != 0
1777 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1778 || (h != NULL
72fbc6e5 1779 && (! SYMBOLIC_BIND (info, h)
22b75d0a
DM		 1780 || h->root.type == bfd_link_hash_defweak
1781 || !h->def_regular))))
0e1862bb 1782 || (!bfd_link_pic (info)
22b75d0a
DM		 1783 && (sec->flags & SEC_ALLOC) != 0
1784 && h != NULL
1785 && (h->root.type == bfd_link_hash_defweak
d0c9aeb3 1786 || !h->def_regular))
0e1862bb 1787 || (!bfd_link_pic (info)
d0c9aeb3
DM		 1788 && h != NULL
1789 && h->type == STT_GNU_IFUNC))
22b75d0a 1790 {
3bf083ed
AM		 1791 struct elf_dyn_relocs *p;
1792 struct elf_dyn_relocs **head;
22b75d0a
DM		 1793
1794 /* When creating a shared object, we must copy these
1795 relocs into the output file. We create a reloc
1796 section in dynobj and make room for the reloc. */
1797 if (sreloc == NULL)
1798 {
83bac4b0
NC		 1799 sreloc = _bfd_elf_make_dynamic_reloc_section
1800 (sec, htab->elf.dynobj, htab->word_align_power,
1801 abfd, /*rela?*/ TRUE);
1802
22b75d0a 1803 if (sreloc == NULL)
83bac4b0 1804 return FALSE;
22b75d0a
DM		 1805 }
1806
1807 /* If this is a global symbol, we count the number of
1808 relocations we need for this symbol. */
1809 if (h != NULL)
1810 head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
1811 else
1812 {
1813 /* Track dynamic relocs needed for local syms too.
1814 We really need local syms available to do this
1815 easily. Oh well. */
22b75d0a 1816 asection *s;
6edfbbad 1817 void *vpp;
22b75d0a 1818
d0c9aeb3 1819 BFD_ASSERT (isym != NULL);
87d72d41
AM		 1820 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1821 if (s == NULL)
1822 s = sec;
1823
6edfbbad 1824 vpp = &elf_section_data (s)->local_dynrel;
3bf083ed 1825 head = (struct elf_dyn_relocs **) vpp;
22b75d0a
DM		 1826 }
1827
1828 p = *head;
1829 if (p == NULL || p->sec != sec)
1830 {
1831 bfd_size_type amt = sizeof *p;
3bf083ed 1832 p = ((struct elf_dyn_relocs *)
22b75d0a
DM		 1833 bfd_alloc (htab->elf.dynobj, amt));
1834 if (p == NULL)
1835 return FALSE;
1836 p->next = *head;
1837 *head = p;
1838 p->sec = sec;
1839 p->count = 0;
1840 p->pc_count = 0;
1841 }
1842
1843 p->count += 1;
1844 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1845 p->pc_count += 1;
1846 }
1847
1848 break;
1849
1850 case R_SPARC_GNU_VTINHERIT:
1851 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1852 return FALSE;
1853 break;
1854
1855 case R_SPARC_GNU_VTENTRY:
d17e0c6e
JB		 1856 BFD_ASSERT (h != NULL);
1857 if (h != NULL
1858 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
22b75d0a
DM		 1859 return FALSE;
1860 break;
1861
1862 case R_SPARC_REGISTER:
1863 /* Nothing to do. */
1864 break;
1865
1866 default:
1867 break;
1868 }
1869 }
1870
1871 return TRUE;
1872}
1873\f
1874asection *
1875_bfd_sparc_elf_gc_mark_hook (asection *sec,
1876 struct bfd_link_info *info,
1877 Elf_Internal_Rela *rel,
1878 struct elf_link_hash_entry *h,
1879 Elf_Internal_Sym *sym)
1880{
1881 if (h != NULL)
07adf181 1882 switch (SPARC_ELF_R_TYPE (rel->r_info))
22b75d0a
DM		 1883 {
1884 case R_SPARC_GNU_VTINHERIT:
1885 case R_SPARC_GNU_VTENTRY:
07adf181 1886 return NULL;
22b75d0a 1887 }
22b75d0a 1888
b45b6908 1889 /* FIXME: The test here, in check_relocs and in relocate_section
0e1862bb
L		 1890 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1891 if (bfd_link_pic (info))
b45b6908
AM		 1892 {
1893 switch (SPARC_ELF_R_TYPE (rel->r_info))
1894 {
1895 case R_SPARC_TLS_GD_CALL:
1896 case R_SPARC_TLS_LDM_CALL:
1897 /* This reloc implicitly references __tls_get_addr. We know
1898 another reloc will reference the same symbol as the one
1899 on this reloc, so the real symbol and section will be
1900 gc marked when processing the other reloc. That lets
1901 us handle __tls_get_addr here. */
1902 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1903 FALSE, FALSE, TRUE);
1904 BFD_ASSERT (h != NULL);
1905 h->mark = 1;
60d67dc8
AM		 1906 if (h->is_weakalias)
1907 weakdef (h)->mark = 1;
b45b6908
AM		 1908 sym = NULL;
1909 }
1910 }
1911
07adf181 1912 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
22b75d0a
DM		 1913}
1914
abd242a9
DM		 1915static Elf_Internal_Rela *
1916sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
1917 Elf_Internal_Rela *relend,
1918 bfd_vma offset)
1919{
1920 while (rel < relend)
1921 {
1922 if (rel->r_offset == offset)
1923 return rel;
1924 rel++;
1925 }
1926 return NULL;
1927}
1928
bb1dd176
QZ		 1929/* Remove undefined weak symbol from the dynamic symbol table if it
1930 is resolved to 0. */
1931
1932bfd_boolean
1933_bfd_sparc_elf_fixup_symbol (struct bfd_link_info *info,
07d6d2b8 1934 struct elf_link_hash_entry *h)
bb1dd176
QZ		 1935{
1936 if (h->dynindx != -1
1937 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
07d6d2b8 1938 _bfd_sparc_elf_hash_entry (h)))
bb1dd176
QZ		 1939 {
1940 h->dynindx = -1;
1941 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
07d6d2b8 1942 h->dynstr_index);
bb1dd176
QZ		 1943 }
1944 return TRUE;
1945}
1946
63c1f59d
AM		 1947/* Find dynamic relocs for H that apply to read-only sections. */
1948
1949static asection *
1950readonly_dynrelocs (struct elf_link_hash_entry *h)
1951{
3bf083ed 1952 struct elf_dyn_relocs *p;
63c1f59d
AM		 1953
1954 for (p = _bfd_sparc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
1955 {
1956 asection *s = p->sec->output_section;
1957
1958 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1959 return p->sec;
1960 }
1961 return NULL;
1962}
1963
22b75d0a
DM		 1964/* Adjust a symbol defined by a dynamic object and referenced by a
1965 regular object. The current definition is in some section of the
1966 dynamic object, but we're not including those sections. We have to
1967 change the definition to something the rest of the link can
1968 understand. */
1969
1970bfd_boolean
1971_bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1972 struct elf_link_hash_entry *h)
1973{
1974 struct _bfd_sparc_elf_link_hash_table *htab;
5474d94f 1975 asection *s, *srel;
22b75d0a
DM		 1976
1977 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1978 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 1979
1980 /* Make sure we know what is going on here. */
1981 BFD_ASSERT (htab->elf.dynobj != NULL
1982 && (h->needs_plt
d0c9aeb3 1983 || h->type == STT_GNU_IFUNC
60d67dc8 1984 || h->is_weakalias
22b75d0a
DM		 1985 || (h->def_dynamic
1986 && h->ref_regular
1987 && !h->def_regular)));
1988
1989 /* If this is a function, put it in the procedure linkage table. We
1990 will fill in the contents of the procedure linkage table later
1991 (although we could actually do it here). The STT_NOTYPE
1992 condition is a hack specifically for the Oracle libraries
1993 delivered for Solaris; for some inexplicable reason, they define
1994 some of their functions as STT_NOTYPE when they really should be
1995 STT_FUNC. */
1996 if (h->type == STT_FUNC
d0c9aeb3 1997 || h->type == STT_GNU_IFUNC
22b75d0a
DM		 1998 || h->needs_plt
1999 || (h->type == STT_NOTYPE
2000 && (h->root.type == bfd_link_hash_defined
2001 || h->root.type == bfd_link_hash_defweak)
2002 && (h->root.u.def.section->flags & SEC_CODE) != 0))
2003 {
2004 if (h->plt.refcount <= 0
d0c9aeb3
DM		 2005 || (h->type != STT_GNU_IFUNC
2006 && (SYMBOL_CALLS_LOCAL (info, h)
2007 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2008 && h->root.type == bfd_link_hash_undefweak))))
22b75d0a
DM		 2009 {
2010 /* This case can occur if we saw a WPLT30 reloc in an input
2011 file, but the symbol was never referred to by a dynamic
2012 object, or if all references were garbage collected. In
2013 such a case, we don't actually need to build a procedure
2014 linkage table, and we can just do a WDISP30 reloc instead. */
2015 h->plt.offset = (bfd_vma) -1;
2016 h->needs_plt = 0;
2017 }
2018
2019 return TRUE;
2020 }
2021 else
2022 h->plt.offset = (bfd_vma) -1;
2023
2024 /* If this is a weak symbol, and there is a real definition, the
2025 processor independent code will have arranged for us to see the
2026 real definition first, and we can just use the same value. */
60d67dc8 2027 if (h->is_weakalias)
22b75d0a 2028 {
60d67dc8
AM		 2029 struct elf_link_hash_entry *def = weakdef (h);
2030 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2031 h->root.u.def.section = def->root.u.def.section;
2032 h->root.u.def.value = def->root.u.def.value;
22b75d0a
DM		 2033 return TRUE;
2034 }
2035
2036 /* This is a reference to a symbol defined by a dynamic object which
2037 is not a function. */
2038
2039 /* If we are creating a shared library, we must presume that the
2040 only references to the symbol are via the global offset table.
2041 For such cases we need not do anything here; the relocations will
2042 be handled correctly by relocate_section. */
0e1862bb 2043 if (bfd_link_pic (info))
22b75d0a
DM		 2044 return TRUE;
2045
2046 /* If there are no references to this symbol that do not use the
2047 GOT, we don't need to generate a copy reloc. */
2048 if (!h->non_got_ref)
2049 return TRUE;
2050
72fbc6e5
DM		 2051 /* If -z nocopyreloc was given, we won't generate them either. */
2052 if (info->nocopyreloc)
2053 {
2054 h->non_got_ref = 0;
2055 return TRUE;
2056 }
2057
3bf083ed 2058 /* If we don't find any dynamic relocs in read-only sections, then
22b75d0a 2059 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
3bf083ed 2060 if (!readonly_dynrelocs (h))
22b75d0a
DM		 2061 {
2062 h->non_got_ref = 0;
2063 return TRUE;
2064 }
2065
2066 /* We must allocate the symbol in our .dynbss section, which will
2067 become part of the .bss section of the executable. There will be
2068 an entry for this symbol in the .dynsym section. The dynamic
2069 object will contain position independent code, so all references
2070 from the dynamic object to this symbol will go through the global
2071 offset table. The dynamic linker will use the .dynsym entry to
2072 determine the address it must put in the global offset table, so
2073 both the dynamic object and the regular object will refer to the
2074 same memory location for the variable. */
2075
2076 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2077 to copy the initial value out of the dynamic object and into the
2078 runtime process image. We need to remember the offset into the
2079 .rel.bss section we are going to use. */
5474d94f
AM		 2080 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2081 {
2082 s = htab->elf.sdynrelro;
2083 srel = htab->elf.sreldynrelro;
2084 }
2085 else
2086 {
2087 s = htab->elf.sdynbss;
2088 srel = htab->elf.srelbss;
2089 }
1d7e9d18 2090 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
22b75d0a 2091 {
5474d94f 2092 srel->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2093 h->needs_copy = 1;
2094 }
2095
6cabe1ea 2096 return _bfd_elf_adjust_dynamic_copy (info, h, s);
22b75d0a
DM		 2097}
2098
2099/* Allocate space in .plt, .got and associated reloc sections for
2100 dynamic relocs. */
2101
2102static bfd_boolean
2c3fc389 2103allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
22b75d0a
DM		 2104{
2105 struct bfd_link_info *info;
2106 struct _bfd_sparc_elf_link_hash_table *htab;
2107 struct _bfd_sparc_elf_link_hash_entry *eh;
3bf083ed 2108 struct elf_dyn_relocs *p;
bb1dd176 2109 bfd_boolean resolved_to_zero;
22b75d0a
DM		 2110
2111 if (h->root.type == bfd_link_hash_indirect)
2112 return TRUE;
2113
22b75d0a
DM		 2114 info = (struct bfd_link_info *) inf;
2115 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2116 BFD_ASSERT (htab != NULL);
22b75d0a 2117
bb1dd176
QZ		 2118 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2119 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
2120
d0c9aeb3
DM		 2121 if ((htab->elf.dynamic_sections_created
2122 && h->plt.refcount > 0)
2123 || (h->type == STT_GNU_IFUNC
b48ca1d4
DM		 2124 && h->def_regular
2125 && h->ref_regular))
22b75d0a
DM		 2126 {
2127 /* Make sure this symbol is output as a dynamic symbol.
2128 Undefined weak syms won't yet be marked as dynamic. */
2129 if (h->dynindx == -1
bb1dd176 2130 && !h->forced_local
07d6d2b8
AM		 2131 && !resolved_to_zero
2132 && h->root.type == bfd_link_hash_undefweak)
22b75d0a
DM		 2133 {
2134 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2135 return FALSE;
2136 }
2137
0e1862bb 2138 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
b48ca1d4
DM		 2139 || (h->type == STT_GNU_IFUNC
2140 && h->def_regular))
22b75d0a 2141 {
72fbc6e5 2142 asection *s = htab->elf.splt;
22b75d0a 2143
d0c9aeb3
DM		 2144 if (s == NULL)
2145 s = htab->elf.iplt;
2146
910600e9 2147 /* Allocate room for the header. */
22b75d0a 2148 if (s->size == 0)
910600e9
RS		 2149 {
2150 s->size = htab->plt_header_size;
2151
2152 /* Allocate space for the .rela.plt.unloaded relocations. */
0e1862bb 2153 if (htab->is_vxworks && !bfd_link_pic (info))
910600e9
RS		 2154 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2155 }
22b75d0a
DM		 2156
2157 /* The procedure linkage table size is bounded by the magnitude
2158 of the offset we can describe in the entry. */
2159 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
e8be8da4 2160 (((bfd_vma)1 << 31) << 1) : 0x400000))
22b75d0a
DM		 2161 {
2162 bfd_set_error (bfd_error_bad_value);
2163 return FALSE;
2164 }
2165
2166 if (SPARC_ELF_WORD_BYTES(htab) == 8
2167 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2168 {
2169 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2170
2171
2172 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2173
2174 h->plt.offset = (s->size - (off * 8));
2175 }
2176 else
2177 h->plt.offset = s->size;
2178
2179 /* If this symbol is not defined in a regular file, and we are
2180 not generating a shared library, then set the symbol to this
2181 location in the .plt. This is required to make function
2182 pointers compare as equal between the normal executable and
2183 the shared library. */
0e1862bb 2184 if (! bfd_link_pic (info)
22b75d0a
DM		 2185 && !h->def_regular)
2186 {
2187 h->root.u.def.section = s;
2188 h->root.u.def.value = h->plt.offset;
2189 }
2190
2191 /* Make room for this entry. */
910600e9 2192 s->size += htab->plt_entry_size;
22b75d0a 2193
07d6d2b8
AM		 2194 /* There should be no PLT relocations against resolved undefined
2195 weak symbols in the executable. */
2196 if (!resolved_to_zero)
2197 {
bb1dd176
QZ		 2198 /* We also need to make an entry in the .rela.plt section. */
2199 if (s == htab->elf.splt)
07d6d2b8 2200 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
bb1dd176 2201 else
07d6d2b8
AM		 2202 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
2203 }
910600e9
RS		 2204
2205 if (htab->is_vxworks)
2206 {
2207 /* Allocate space for the .got.plt entry. */
72fbc6e5 2208 htab->elf.sgotplt->size += 4;
910600e9
RS		 2209
2210 /* ...and for the .rela.plt.unloaded relocations. */
0e1862bb 2211 if (!bfd_link_pic (info))
910600e9
RS		 2212 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2213 }
22b75d0a
DM		 2214 }
2215 else
2216 {
2217 h->plt.offset = (bfd_vma) -1;
2218 h->needs_plt = 0;
2219 }
2220 }
2221 else
2222 {
2223 h->plt.offset = (bfd_vma) -1;
2224 h->needs_plt = 0;
2225 }
2226
2227 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2228 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2229 if (h->got.refcount > 0
bb363086 2230 && !bfd_link_pic (info)
22b75d0a
DM		 2231 && h->dynindx == -1
2232 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2233 h->got.offset = (bfd_vma) -1;
2234 else if (h->got.refcount > 0)
2235 {
2236 asection *s;
2237 bfd_boolean dyn;
2238 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2239
2240 /* Make sure this symbol is output as a dynamic symbol.
2241 Undefined weak syms won't yet be marked as dynamic. */
2242 if (h->dynindx == -1
bb1dd176 2243 && !h->forced_local
07d6d2b8
AM		 2244 && !resolved_to_zero
2245 && h->root.type == bfd_link_hash_undefweak)
22b75d0a
DM		 2246 {
2247 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2248 return FALSE;
2249 }
2250
72fbc6e5 2251 s = htab->elf.sgot;
22b75d0a
DM		 2252 h->got.offset = s->size;
2253 s->size += SPARC_ELF_WORD_BYTES (htab);
2254 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2255 if (tls_type == GOT_TLS_GD)
2256 s->size += SPARC_ELF_WORD_BYTES (htab);
2257 dyn = htab->elf.dynamic_sections_created;
2258 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2259 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
bb1dd176
QZ		 2260 global. No dynamic relocations are needed against resolved
2261 undefined weak symbols in an executable. */
22b75d0a 2262 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
d0c9aeb3
DM		 2263 || tls_type == GOT_TLS_IE
2264 || h->type == STT_GNU_IFUNC)
72fbc6e5 2265 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a 2266 else if (tls_type == GOT_TLS_GD)
72fbc6e5 2267 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
bb1dd176 2268 else if (((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
07d6d2b8
AM		 2269 && !resolved_to_zero)
2270 || h->root.type != bfd_link_hash_undefweak)
2271 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2272 bfd_link_pic (info),
bb1dd176 2273 h))
72fbc6e5 2274 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2275 }
2276 else
2277 h->got.offset = (bfd_vma) -1;
2278
22b75d0a
DM		 2279 if (eh->dyn_relocs == NULL)
2280 return TRUE;
2281
2282 /* In the shared -Bsymbolic case, discard space allocated for
2283 dynamic pc-relative relocs against symbols which turn out to be
2284 defined in regular objects. For the normal shared case, discard
2285 space for pc-relative relocs that have become local due to symbol
2286 visibility changes. */
2287
0e1862bb 2288 if (bfd_link_pic (info))
22b75d0a 2289 {
72fbc6e5 2290 if (SYMBOL_CALLS_LOCAL (info, h))
22b75d0a 2291 {
3bf083ed 2292 struct elf_dyn_relocs **pp;
22b75d0a
DM		 2293
2294 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2295 {
2296 p->count -= p->pc_count;
2297 p->pc_count = 0;
2298 if (p->count == 0)
2299 *pp = p->next;
2300 else
2301 pp = &p->next;
2302 }
2303 }
22d606e9 2304
3348747a
NS		 2305 if (htab->is_vxworks)
2306 {
3bf083ed 2307 struct elf_dyn_relocs **pp;
3348747a
NS		 2308
2309 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2310 {
2311 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2312 *pp = p->next;
2313 else
2314 pp = &p->next;
2315 }
2316 }
2317
22d606e9 2318 /* Also discard relocs on undefined weak syms with non-default
bb1dd176 2319 visibility or in PIE. */
22d606e9
AM		 2320 if (eh->dyn_relocs != NULL
2321 && h->root.type == bfd_link_hash_undefweak)
2322 {
07d6d2b8 2323 /* An undefined weak symbol is never
bb1dd176
QZ		 2324 bound locally in a shared library. */
2325
2326 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
07d6d2b8
AM		 2327 || resolved_to_zero)
2328 {
2329 if (h->non_got_ref)
2330 {
2331 /* Keep dynamic non-GOT/non-PLT relocation so that we
2332 can branch to 0 without PLT. */
2333 struct elf_dyn_relocs **pp;
2334
2335 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2336 if (p->pc_count == 0)
2337 *pp = p->next;
2338 else
2339 {
2340 /* Remove other relocations. */
2341 p->count = p->pc_count;
2342 pp = &p->next;
2343 }
2344
2345 if (eh->dyn_relocs != NULL)
2346 {
2347 /* Make sure undefined weak symbols are output
2348 as dynamic symbols in PIEs for dynamic non-GOT
2349 non-PLT reloations. */
2350 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2351 return FALSE;
2352 }
2353 }
2354 else
2355 eh->dyn_relocs = NULL;
2356 }
22d606e9
AM		 2357
2358 /* Make sure undefined weak symbols are output as a dynamic
2359 symbol in PIEs. */
2360 else if (h->dynindx == -1
2361 && !h->forced_local)
2362 {
2363 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2364 return FALSE;
2365 }
2366 }
22b75d0a
DM		 2367 }
2368 else
2369 {
2370 /* For the non-shared case, discard space for relocs against
2371 symbols which turn out to need copy relocs or are not
2372 dynamic. */
2373
bb1dd176 2374 if ((!h->non_got_ref
07d6d2b8
AM		 2375 || (h->root.type == bfd_link_hash_undefweak
2376 && !resolved_to_zero))
22b75d0a
DM		 2377 && ((h->def_dynamic
2378 && !h->def_regular)
2379 || (htab->elf.dynamic_sections_created
2380 && (h->root.type == bfd_link_hash_undefweak
2381 || h->root.type == bfd_link_hash_undefined))))
2382 {
2383 /* Make sure this symbol is output as a dynamic symbol.
2384 Undefined weak syms won't yet be marked as dynamic. */
2385 if (h->dynindx == -1
bb1dd176 2386 && !h->forced_local
07d6d2b8
AM		 2387 && !resolved_to_zero
2388 && h->root.type == bfd_link_hash_undefweak)
22b75d0a
DM		 2389 {
2390 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2391 return FALSE;
2392 }
2393
2394 /* If that succeeded, we know we'll be keeping all the
2395 relocs. */
2396 if (h->dynindx != -1)
2397 goto keep;
2398 }
2399
2400 eh->dyn_relocs = NULL;
2401
2402 keep: ;
2403 }
2404
2405 /* Finally, allocate space. */
2406 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2407 {
2408 asection *sreloc = elf_section_data (p->sec)->sreloc;
2409 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2410 }
2411
2412 return TRUE;
2413}
2414
d0c9aeb3
DM		 2415/* Allocate space in .plt, .got and associated reloc sections for
2416 local dynamic relocs. */
2417
2418static bfd_boolean
2419allocate_local_dynrelocs (void **slot, void *inf)
2420{
2421 struct elf_link_hash_entry *h
2422 = (struct elf_link_hash_entry *) *slot;
2423
2424 if (h->type != STT_GNU_IFUNC
2425 || !h->def_regular
2426 || !h->ref_regular
2427 || !h->forced_local
2428 || h->root.type != bfd_link_hash_defined)
2429 abort ();
2430
2431 return allocate_dynrelocs (h, inf);
2432}
2433
63c1f59d
AM		 2434/* Set DF_TEXTREL if we find any dynamic relocs that apply to
2435 read-only sections. */
22b75d0a
DM		 2436
2437static bfd_boolean
63c1f59d 2438maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
22b75d0a 2439{
63c1f59d 2440 asection *sec;
22b75d0a 2441
63c1f59d
AM		 2442 if (h->root.type == bfd_link_hash_indirect)
2443 return TRUE;
22b75d0a 2444
63c1f59d
AM		 2445 sec = readonly_dynrelocs (h);
2446 if (sec != NULL)
2447 {
2448 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
22b75d0a 2449
63c1f59d
AM		 2450 info->flags |= DF_TEXTREL;
2451 info->callbacks->minfo
2452 (_("%B: dynamic relocation against `%T' in read-only section `%A'\n"),
2453 sec->owner, h->root.root.string, sec);
f0f07ad1 2454
63c1f59d
AM		 2455 /* Not an error, just cut short the traversal. */
2456 return FALSE;
22b75d0a
DM		 2457 }
2458 return TRUE;
2459}
2460
2461/* Return true if the dynamic symbol for a given section should be
2462 omitted when creating a shared library. */
2463
2464bfd_boolean
2465_bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2466 struct bfd_link_info *info,
2467 asection *p)
2468{
2469 /* We keep the .got section symbol so that explicit relocations
2470 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2471 can be turned into relocations against the .got symbol. */
2472 if (strcmp (p->name, ".got") == 0)
2473 return FALSE;
2474
2475 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2476}
2477
2478/* Set the sizes of the dynamic sections. */
2479
2480bfd_boolean
2481_bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2482 struct bfd_link_info *info)
2483{
2484 struct _bfd_sparc_elf_link_hash_table *htab;
2485 bfd *dynobj;
2486 asection *s;
2487 bfd *ibfd;
2488
2489 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2490 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 2491 dynobj = htab->elf.dynobj;
2492 BFD_ASSERT (dynobj != NULL);
2493
2494 if (elf_hash_table (info)->dynamic_sections_created)
2495 {
2496 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2497 if (bfd_link_executable (info) && !info->nointerp)
07d6d2b8
AM		 2498 {
2499 s = bfd_get_linker_section (dynobj, ".interp");
2500 BFD_ASSERT (s != NULL);
2501 s->size = htab->dynamic_interpreter_size;
2502 s->contents = (unsigned char *) htab->dynamic_interpreter;
2503 htab->interp = s;
2504 }
22b75d0a
DM		 2505 }
2506
2507 /* Set up .got offsets for local syms, and space for local dynamic
2508 relocs. */
c72f2fb2 2509 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
22b75d0a
DM		 2510 {
2511 bfd_signed_vma *local_got;
2512 bfd_signed_vma *end_local_got;
2513 char *local_tls_type;
2514 bfd_size_type locsymcount;
2515 Elf_Internal_Shdr *symtab_hdr;
2516 asection *srel;
2517
0ffa91dd 2518 if (! is_sparc_elf (ibfd))
22b75d0a
DM		 2519 continue;
2520
2521 for (s = ibfd->sections; s != NULL; s = s->next)
2522 {
3bf083ed 2523 struct elf_dyn_relocs *p;
22b75d0a 2524
6edfbbad 2525 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
22b75d0a
DM		 2526 {
2527 if (!bfd_is_abs_section (p->sec)
2528 && bfd_is_abs_section (p->sec->output_section))
2529 {
2530 /* Input section has been discarded, either because
2531 it is a copy of a linkonce section or due to
2532 linker script /DISCARD/, so we'll be discarding
2533 the relocs too. */
2534 }
3348747a
NS		 2535 else if (htab->is_vxworks
2536 && strcmp (p->sec->output_section->name,
2537 ".tls_vars") == 0)
2538 {
2539 /* Relocations in vxworks .tls_vars sections are
2540 handled specially by the loader. */
2541 }
22b75d0a
DM		 2542 else if (p->count != 0)
2543 {
2544 srel = elf_section_data (p->sec)->sreloc;
d0c9aeb3
DM		 2545 if (!htab->elf.dynamic_sections_created)
2546 srel = htab->elf.irelplt;
22b75d0a
DM		 2547 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2548 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
f0f07ad1
L		 2549 {
2550 info->flags |= DF_TEXTREL;
2551 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2552 p->sec->owner, p->sec);
2553 }
22b75d0a
DM		 2554 }
2555 }
2556 }
2557
2558 local_got = elf_local_got_refcounts (ibfd);
2559 if (!local_got)
2560 continue;
2561
0ffa91dd 2562 symtab_hdr = &elf_symtab_hdr (ibfd);
22b75d0a
DM		 2563 locsymcount = symtab_hdr->sh_info;
2564 end_local_got = local_got + locsymcount;
2565 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
72fbc6e5
DM		 2566 s = htab->elf.sgot;
2567 srel = htab->elf.srelgot;
22b75d0a
DM		 2568 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2569 {
2570 if (*local_got > 0)
2571 {
2572 *local_got = s->size;
2573 s->size += SPARC_ELF_WORD_BYTES (htab);
2574 if (*local_tls_type == GOT_TLS_GD)
2575 s->size += SPARC_ELF_WORD_BYTES (htab);
0e1862bb 2576 if (bfd_link_pic (info)
22b75d0a
DM		 2577 || *local_tls_type == GOT_TLS_GD
2578 || *local_tls_type == GOT_TLS_IE)
2579 srel->size += SPARC_ELF_RELA_BYTES (htab);
2580 }
2581 else
2582 *local_got = (bfd_vma) -1;
2583 }
2584 }
2585
2586 if (htab->tls_ldm_got.refcount > 0)
2587 {
2588 /* Allocate 2 got entries and 1 dynamic reloc for
2589 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
72fbc6e5
DM		 2590 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2591 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2592 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2593 }
2594 else
2595 htab->tls_ldm_got.offset = -1;
2596
2597 /* Allocate global sym .plt and .got entries, and space for global
2598 sym dynamic relocs. */
2c3fc389 2599 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
22b75d0a 2600
d0c9aeb3
DM		 2601 /* Allocate .plt and .got entries, and space for local symbols. */
2602 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2603
0fc9967d
JM		 2604 if (! ABI_64_P (output_bfd)
2605 && !htab->is_vxworks
22b75d0a
DM		 2606 && elf_hash_table (info)->dynamic_sections_created)
2607 {
0fc9967d
JM		 2608 /* Make space for the trailing nop in .plt. */
2609 if (htab->elf.splt->size > 0)
2610 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
22b75d0a
DM		 2611
2612 /* If the .got section is more than 0x1000 bytes, we add
2613 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
0fc9967d
JM		 2614 bit relocations have a greater chance of working.
2615
2616 FIXME: Make this optimization work for 64-bit too. */
72fbc6e5 2617 if (htab->elf.sgot->size >= 0x1000
22b75d0a
DM		 2618 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2619 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2620 }
2621
2622 /* The check_relocs and adjust_dynamic_symbol entry points have
2623 determined the sizes of the various dynamic sections. Allocate
2624 memory for them. */
2625 for (s = dynobj->sections; s != NULL; s = s->next)
2626 {
22b75d0a
DM		 2627 if ((s->flags & SEC_LINKER_CREATED) == 0)
2628 continue;
2629
72fbc6e5
DM		 2630 if (s == htab->elf.splt
2631 || s == htab->elf.sgot
9d19e4fd 2632 || s == htab->elf.sdynbss
5474d94f 2633 || s == htab->elf.sdynrelro
d0c9aeb3 2634 || s == htab->elf.iplt
72fbc6e5 2635 || s == htab->elf.sgotplt)
22b75d0a 2636 {
c456f082
AM		 2637 /* Strip this section if we don't need it; see the
2638 comment below. */
2639 }
0112cd26 2640 else if (CONST_STRNEQ (s->name, ".rela"))
c456f082
AM		 2641 {
2642 if (s->size != 0)
22b75d0a
DM		 2643 {
2644 /* We use the reloc_count field as a counter if we need
2645 to copy relocs into the output file. */
2646 s->reloc_count = 0;
2647 }
2648 }
c456f082 2649 else
22b75d0a 2650 {
c456f082 2651 /* It's not one of our sections. */
22b75d0a
DM		 2652 continue;
2653 }
2654
c456f082 2655 if (s->size == 0)
22b75d0a 2656 {
c456f082
AM		 2657 /* If we don't need this section, strip it from the
2658 output file. This is mostly to handle .rela.bss and
2659 .rela.plt. We must create both sections in
2660 create_dynamic_sections, because they must be created
2661 before the linker maps input sections to output
2662 sections. The linker does that before
2663 adjust_dynamic_symbol is called, and it is that
2664 function which decides whether anything needs to go
2665 into these sections. */
8423293d 2666 s->flags |= SEC_EXCLUDE;
22b75d0a
DM		 2667 continue;
2668 }
2669
c456f082
AM		 2670 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2671 continue;
2672
22b75d0a
DM		 2673 /* Allocate memory for the section contents. Zero the memory
2674 for the benefit of .rela.plt, which has 4 unused entries
2675 at the beginning, and we don't want garbage. */
2676 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
c456f082 2677 if (s->contents == NULL)
22b75d0a
DM		 2678 return FALSE;
2679 }
2680
2681 if (elf_hash_table (info)->dynamic_sections_created)
2682 {
2683 /* Add some entries to the .dynamic section. We fill in the
2684 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2685 must add the entries now so that we get the correct size for
2686 the .dynamic section. The DT_DEBUG entry is filled in by the
2687 dynamic linker and used by the debugger. */
2688#define add_dynamic_entry(TAG, VAL) \
2689 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2690
0e1862bb 2691 if (bfd_link_executable (info))
22b75d0a
DM		 2692 {
2693 if (!add_dynamic_entry (DT_DEBUG, 0))
2694 return FALSE;
2695 }
2696
72fbc6e5 2697 if (htab->elf.srelplt->size != 0)
22b75d0a
DM		 2698 {
2699 if (!add_dynamic_entry (DT_PLTGOT, 0)
2700 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2701 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2702 || !add_dynamic_entry (DT_JMPREL, 0))
2703 return FALSE;
2704 }
2705
2706 if (!add_dynamic_entry (DT_RELA, 0)
2707 || !add_dynamic_entry (DT_RELASZ, 0)
2708 || !add_dynamic_entry (DT_RELAENT,
2709 SPARC_ELF_RELA_BYTES (htab)))
2710 return FALSE;
2711
2712 /* If any dynamic relocs apply to a read-only section,
2713 then we need a DT_TEXTREL entry. */
2714 if ((info->flags & DF_TEXTREL) == 0)
63c1f59d 2715 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
22b75d0a
DM		 2716
2717 if (info->flags & DF_TEXTREL)
2718 {
2719 if (!add_dynamic_entry (DT_TEXTREL, 0))
2720 return FALSE;
2721 }
2722
2723 if (ABI_64_P (output_bfd))
2724 {
2725 int reg;
2726 struct _bfd_sparc_elf_app_reg * app_regs;
2727 struct elf_strtab_hash *dynstr;
2728 struct elf_link_hash_table *eht = elf_hash_table (info);
2729
2730 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2731 entries if needed. */
2732 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2733 dynstr = eht->dynstr;
2734
2735 for (reg = 0; reg < 4; reg++)
2736 if (app_regs [reg].name != NULL)
2737 {
2738 struct elf_link_local_dynamic_entry *entry, *e;
2739
2740 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2741 return FALSE;
2742
2743 entry = (struct elf_link_local_dynamic_entry *)
2744 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2745 if (entry == NULL)
2746 return FALSE;
2747
2748 /* We cheat here a little bit: the symbol will not be local, so we
2749 put it at the end of the dynlocal linked list. We will fix it
2750 later on, as we have to fix other fields anyway. */
2751 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2752 entry->isym.st_size = 0;
2753 if (*app_regs [reg].name != '\0')
2754 entry->isym.st_name
2755 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2756 else
2757 entry->isym.st_name = 0;
2758 entry->isym.st_other = 0;
2759 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2760 STT_REGISTER);
2761 entry->isym.st_shndx = app_regs [reg].shndx;
35fc36a8 2762 entry->isym.st_target_internal = 0;
22b75d0a
DM		 2763 entry->next = NULL;
2764 entry->input_bfd = output_bfd;
2765 entry->input_indx = -1;
2766
2767 if (eht->dynlocal == NULL)
2768 eht->dynlocal = entry;
2769 else
2770 {
2771 for (e = eht->dynlocal; e->next; e = e->next)
2772 ;
2773 e->next = entry;
2774 }
2775 eht->dynsymcount++;
2776 }
2777 }
7a2b07ff
NS		 2778 if (htab->is_vxworks
2779 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2780 return FALSE;
22b75d0a
DM		 2781 }
2782#undef add_dynamic_entry
2783
2784 return TRUE;
2785}
2786\f
2787bfd_boolean
2788_bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2789{
f592407e
AM		 2790 if (!sec->used_by_bfd)
2791 {
2792 struct _bfd_sparc_elf_section_data *sdata;
2793 bfd_size_type amt = sizeof (*sdata);
22b75d0a 2794
f592407e
AM		 2795 sdata = bfd_zalloc (abfd, amt);
2796 if (sdata == NULL)
2797 return FALSE;
2798 sec->used_by_bfd = sdata;
2799 }
22b75d0a
DM		 2800
2801 return _bfd_elf_new_section_hook (abfd, sec);
2802}
2803
2804bfd_boolean
2805_bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2806 struct bfd_section *section,
2807 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2808 bfd_boolean *again)
2809{
0e1862bb 2810 if (bfd_link_relocatable (link_info))
c8a1f254
NS		 2811 (*link_info->callbacks->einfo)
2812 (_("%P%F: --relax and -r may not be used together\n"));
2813
22b75d0a
DM		 2814 *again = FALSE;
2815 sec_do_relax (section) = 1;
2816 return TRUE;
2817}
2818\f
2819/* Return the base VMA address which should be subtracted from real addresses
2820 when resolving @dtpoff relocation.
2821 This is PT_TLS segment p_vaddr. */
2822
2823static bfd_vma
2824dtpoff_base (struct bfd_link_info *info)
2825{
2826 /* If tls_sec is NULL, we should have signalled an error already. */
2827 if (elf_hash_table (info)->tls_sec == NULL)
2828 return 0;
2829 return elf_hash_table (info)->tls_sec->vma;
2830}
2831
2832/* Return the relocation value for @tpoff relocation
2833 if STT_TLS virtual address is ADDRESS. */
2834
2835static bfd_vma
2836tpoff (struct bfd_link_info *info, bfd_vma address)
2837{
2838 struct elf_link_hash_table *htab = elf_hash_table (info);
1360ba76
RO		 2839 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
2840 bfd_vma static_tls_size;
22b75d0a
DM		 2841
2842 /* If tls_sec is NULL, we should have signalled an error already. */
2843 if (htab->tls_sec == NULL)
2844 return 0;
1360ba76
RO		 2845
2846 /* Consider special static TLS alignment requirements. */
2847 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
2848 return address - static_tls_size - htab->tls_sec->vma;
22b75d0a
DM		 2849}
2850
00c50991
DM		 2851/* Return the relocation value for a %gdop relocation. */
2852
2853static bfd_vma
2854gdopoff (struct bfd_link_info *info, bfd_vma address)
2855{
2856 struct elf_link_hash_table *htab = elf_hash_table (info);
2857 bfd_vma got_base;
2858
2859 got_base = (htab->hgot->root.u.def.value
2860 + htab->hgot->root.u.def.section->output_offset
2861 + htab->hgot->root.u.def.section->output_section->vma);
2862
2863 return address - got_base;
2864}
2865
5b86074c
AM		 2866/* Return whether H is local and its ADDRESS is within 4G of
2867 _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
2868 sethi, xor sequence. */
2869
2870static bfd_boolean
2871gdop_relative_offset_ok (struct bfd_link_info *info,
2872 struct elf_link_hash_entry *h,
2873 bfd_vma address ATTRIBUTE_UNUSED)
2874{
2875 if (!SYMBOL_REFERENCES_LOCAL (info, h))
2876 return FALSE;
2877 /* If H is undefined, ADDRESS will be zero. We can't allow a
2878 relative offset to "zero" when producing PIEs or shared libs.
2879 Note that to get here with an undefined symbol it must also be
2880 hidden or internal visibility. */
2881 if (bfd_link_pic (info)
2882 && h != NULL
2883 && (h->root.type == bfd_link_hash_undefweak
2884 || h->root.type == bfd_link_hash_undefined))
2885 return FALSE;
2886#ifdef BFD64
2887 return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
2888#else
2889 return TRUE;
2890#endif
2891}
2892
22b75d0a
DM		 2893/* Relocate a SPARC ELF section. */
2894
2895bfd_boolean
ab96bf03
AM		 2896_bfd_sparc_elf_relocate_section (bfd *output_bfd,
2897 struct bfd_link_info *info,
2898 bfd *input_bfd,
2899 asection *input_section,
2900 bfd_byte *contents,
2901 Elf_Internal_Rela *relocs,
2902 Elf_Internal_Sym *local_syms,
2903 asection **local_sections)
22b75d0a
DM		 2904{
2905 struct _bfd_sparc_elf_link_hash_table *htab;
2906 Elf_Internal_Shdr *symtab_hdr;
2907 struct elf_link_hash_entry **sym_hashes;
2908 bfd_vma *local_got_offsets;
2909 bfd_vma got_base;
2910 asection *sreloc;
2911 Elf_Internal_Rela *rel;
2912 Elf_Internal_Rela *relend;
2913 int num_relocs;
3348747a 2914 bfd_boolean is_vxworks_tls;
22b75d0a 2915
22b75d0a 2916 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2917 BFD_ASSERT (htab != NULL);
0ffa91dd 2918 symtab_hdr = &elf_symtab_hdr (input_bfd);
22b75d0a
DM		 2919 sym_hashes = elf_sym_hashes (input_bfd);
2920 local_got_offsets = elf_local_got_offsets (input_bfd);
2921
2922 if (elf_hash_table (info)->hgot == NULL)
2923 got_base = 0;
2924 else
2925 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2926
2927 sreloc = elf_section_data (input_section)->sreloc;
3348747a
NS		 2928 /* We have to handle relocations in vxworks .tls_vars sections
2929 specially, because the dynamic loader is 'weird'. */
0e1862bb 2930 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
3348747a
NS		 2931 && !strcmp (input_section->output_section->name,
2932 ".tls_vars"));
22b75d0a
DM		 2933
2934 rel = relocs;
2935 if (ABI_64_P (output_bfd))
d4730f92 2936 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
22b75d0a
DM		 2937 else
2938 num_relocs = input_section->reloc_count;
2939 relend = relocs + num_relocs;
2940 for (; rel < relend; rel++)
2941 {
2942 int r_type, tls_type;
2943 reloc_howto_type *howto;
2944 unsigned long r_symndx;
2945 struct elf_link_hash_entry *h;
bb1dd176 2946 struct _bfd_sparc_elf_link_hash_entry *eh;
22b75d0a
DM		 2947 Elf_Internal_Sym *sym;
2948 asection *sec;
2949 bfd_vma relocation, off;
2950 bfd_reloc_status_type r;
2951 bfd_boolean is_plt = FALSE;
2952 bfd_boolean unresolved_reloc;
bb1dd176 2953 bfd_boolean resolved_to_zero;
ec1acaba 2954 bfd_boolean relative_reloc;
22b75d0a
DM		 2955
2956 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2957 if (r_type == R_SPARC_GNU_VTINHERIT
2958 || r_type == R_SPARC_GNU_VTENTRY)
2959 continue;
2960
2961 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2962 {
2963 bfd_set_error (bfd_error_bad_value);
2964 return FALSE;
2965 }
2966 howto = _bfd_sparc_elf_howto_table + r_type;
2967
22b75d0a
DM		 2968 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2969 h = NULL;
2970 sym = NULL;
2971 sec = NULL;
2972 unresolved_reloc = FALSE;
2973 if (r_symndx < symtab_hdr->sh_info)
2974 {
2975 sym = local_syms + r_symndx;
2976 sec = local_sections[r_symndx];
2977 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
d0c9aeb3 2978
0e1862bb 2979 if (!bfd_link_relocatable (info)
d0c9aeb3
DM		 2980 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2981 {
2982 /* Relocate against local STT_GNU_IFUNC symbol. */
2983 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
2984 rel, FALSE);
2985 if (h == NULL)
2986 abort ();
2987
68ffbac6 2988 /* Set STT_GNU_IFUNC symbol value. */
d0c9aeb3
DM		 2989 h->root.u.def.value = sym->st_value;
2990 h->root.u.def.section = sec;
2991 }
22b75d0a
DM		 2992 }
2993 else
2994 {
62d887d4 2995 bfd_boolean warned, ignored;
22b75d0a
DM		 2996
2997 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2998 r_symndx, symtab_hdr, sym_hashes,
2999 h, sec, relocation,
62d887d4 3000 unresolved_reloc, warned, ignored);
22b75d0a
DM		 3001 if (warned)
3002 {
3003 /* To avoid generating warning messages about truncated
3004 relocations, set the relocation's address to be the same as
3005 the start of this section. */
3006 if (input_section->output_section != NULL)
3007 relocation = input_section->output_section->vma;
3008 else
3009 relocation = 0;
3010 }
3011 }
3012
dbaa2011 3013 if (sec != NULL && discarded_section (sec))
e4067dbb 3014 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 3015 rel, 1, relend, howto, 0, contents);
ab96bf03 3016
0e1862bb 3017 if (bfd_link_relocatable (info))
ab96bf03
AM		 3018 continue;
3019
d0c9aeb3
DM		 3020 if (h != NULL
3021 && h->type == STT_GNU_IFUNC
3022 && h->def_regular)
3023 {
3024 asection *plt_sec;
3025 const char *name;
3026
3027 if ((input_section->flags & SEC_ALLOC) == 0
3028 || h->plt.offset == (bfd_vma) -1)
3029 abort ();
3030
3031 plt_sec = htab->elf.splt;
3032 if (! plt_sec)
3033 plt_sec =htab->elf.iplt;
3034
3035 switch (r_type)
3036 {
00c50991
DM		 3037 case R_SPARC_GOTDATA_OP:
3038 continue;
3039
d0c9aeb3
DM		 3040 case R_SPARC_GOTDATA_OP_HIX22:
3041 case R_SPARC_GOTDATA_OP_LOX10:
00c50991
DM		 3042 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3043 ? R_SPARC_GOT22
3044 : R_SPARC_GOT10);
3045 howto = _bfd_sparc_elf_howto_table + r_type;
3046 /* Fall through. */
3047
d0c9aeb3
DM		 3048 case R_SPARC_GOT10:
3049 case R_SPARC_GOT13:
3050 case R_SPARC_GOT22:
3051 if (htab->elf.sgot == NULL)
3052 abort ();
3053 off = h->got.offset;
3054 if (off == (bfd_vma) -1)
3055 abort();
3056 relocation = htab->elf.sgot->output_offset + off - got_base;
3057 goto do_relocation;
3058
3059 case R_SPARC_WPLT30:
3060 case R_SPARC_WDISP30:
3061 relocation = (plt_sec->output_section->vma
3062 + plt_sec->output_offset + h->plt.offset);
3063 goto do_relocation;
3064
3065 case R_SPARC_32:
3066 case R_SPARC_64:
0e1862bb 3067 if (bfd_link_pic (info) && h->non_got_ref)
d0c9aeb3
DM		 3068 {
3069 Elf_Internal_Rela outrel;
3070 bfd_vma offset;
3071
3072 offset = _bfd_elf_section_offset (output_bfd, info,
3073 input_section,
3074 rel->r_offset);
3075 if (offset == (bfd_vma) -1
3076 || offset == (bfd_vma) -2)
3077 abort();
3078
3079 outrel.r_offset = (input_section->output_section->vma
3080 + input_section->output_offset
3081 + offset);
3082
3083 if (h->dynindx == -1
3084 || h->forced_local
0e1862bb 3085 || bfd_link_executable (info))
d0c9aeb3
DM		 3086 {
3087 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3088 0, R_SPARC_IRELATIVE);
3089 outrel.r_addend = relocation + rel->r_addend;
3090 }
3091 else
3092 {
3093 if (h->dynindx == -1)
3094 abort();
3095 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3096 outrel.r_addend = rel->r_addend;
3097 }
3098
3099 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3100 continue;
3101 }
3102
3103 relocation = (plt_sec->output_section->vma
3104 + plt_sec->output_offset + h->plt.offset);
3105 goto do_relocation;
3106
3107 case R_SPARC_HI22:
3108 case R_SPARC_LO10:
3109 /* We should only see such relocs in static links. */
0e1862bb 3110 if (bfd_link_pic (info))
d0c9aeb3
DM		 3111 abort();
3112 relocation = (plt_sec->output_section->vma
3113 + plt_sec->output_offset + h->plt.offset);
3114 goto do_relocation;
3115
3116 default:
3117 if (h->root.root.string)
3118 name = h->root.root.string;
3119 else
3120 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3121 NULL);
4eca0228 3122 _bfd_error_handler
695344c0 3123 /* xgettext:c-format */
d0c9aeb3
DM		 3124 (_("%B: relocation %s against STT_GNU_IFUNC "
3125 "symbol `%s' isn't handled by %s"), input_bfd,
3126 _bfd_sparc_elf_howto_table[r_type].name,
3127 name, __FUNCTION__);
3128 bfd_set_error (bfd_error_bad_value);
3129 return FALSE;
3130 }
3131 }
3132
bb1dd176
QZ		 3133 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
3134 resolved_to_zero = (eh != NULL
07d6d2b8 3135 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh));
bb1dd176 3136
22b75d0a
DM		 3137 switch (r_type)
3138 {
739f7f82
DM		 3139 case R_SPARC_GOTDATA_OP_HIX22:
3140 case R_SPARC_GOTDATA_OP_LOX10:
5b86074c 3141 if (gdop_relative_offset_ok (info, h, relocation))
cc133f9f
JC		 3142 {
3143 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3144 ? R_SPARC_GOTDATA_HIX22
3145 : R_SPARC_GOTDATA_LOX10);
3146 howto = _bfd_sparc_elf_howto_table + r_type;
3147 }
00c50991
DM		 3148 break;
3149
3150 case R_SPARC_GOTDATA_OP:
5b86074c 3151 if (gdop_relative_offset_ok (info, h, relocation))
00c50991
DM		 3152 {
3153 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3154
3155 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3156 relocation = 0x80000000 | (insn & 0x3e07c01f);
3157 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3158 }
3159 continue;
3160 }
3161
3162 switch (r_type)
3163 {
3164 case R_SPARC_GOTDATA_HIX22:
3165 case R_SPARC_GOTDATA_LOX10:
3166 relocation = gdopoff (info, relocation);
3167 break;
739f7f82 3168
cc133f9f
JC		 3169 case R_SPARC_GOTDATA_OP_HIX22:
3170 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 3171 case R_SPARC_GOT10:
3172 case R_SPARC_GOT13:
3173 case R_SPARC_GOT22:
3174 /* Relocation is to the entry for this symbol in the global
3175 offset table. */
72fbc6e5 3176 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3177 abort ();
3178
ec1acaba 3179 relative_reloc = FALSE;
22b75d0a
DM		 3180 if (h != NULL)
3181 {
3182 bfd_boolean dyn;
3183
3184 off = h->got.offset;
3185 BFD_ASSERT (off != (bfd_vma) -1);
3186 dyn = elf_hash_table (info)->dynamic_sections_created;
3187
0e1862bb
L		 3188 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3189 bfd_link_pic (info),
3190 h)
3191 || (bfd_link_pic (info)
72fbc6e5 3192 && SYMBOL_REFERENCES_LOCAL (info, h)))
22b75d0a
DM		 3193 {
3194 /* This is actually a static link, or it is a
3195 -Bsymbolic link and the symbol is defined
3196 locally, or the symbol was forced to be local
3197 because of a version file. We must initialize
3198 this entry in the global offset table. Since the
3199 offset must always be a multiple of 8 for 64-bit
3200 and 4 for 32-bit, we use the least significant bit
3201 to record whether we have initialized it already.
3202
3203 When doing a dynamic link, we create a .rela.got
3204 relocation entry to initialize the value. This
3205 is done in the finish_dynamic_symbol routine. */
3206 if ((off & 1) != 0)
3207 off &= ~1;
3208 else
3209 {
ec1acaba
EB		 3210 if (h->dynindx == -1
3211 && !h->forced_local
3212 && h->root.type != bfd_link_hash_undefweak
3213 && bfd_link_pic (info))
3214 {
3215 /* If this symbol isn't dynamic in PIC
3216 generate R_SPARC_RELATIVE here. */
3217 relative_reloc = TRUE;
3218 }
a9d44aad
AM		 3219 else
3220 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3221 htab->elf.sgot->contents + off);
3222 h->got.offset |= 1;
22b75d0a
DM		 3223 }
3224 }
3225 else
3226 unresolved_reloc = FALSE;
3227 }
3228 else
3229 {
3230 BFD_ASSERT (local_got_offsets != NULL
3231 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3232
3233 off = local_got_offsets[r_symndx];
3234
3235 /* The offset must always be a multiple of 8 on 64-bit and
3236 4 on 32-bit. We use the least significant bit to record
3237 whether we have already processed this entry. */
3238 if ((off & 1) != 0)
3239 off &= ~1;
3240 else
3241 {
0e1862bb 3242 if (bfd_link_pic (info))
a9d44aad
AM		 3243 relative_reloc = TRUE;
3244 else
3245 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3246 htab->elf.sgot->contents + off);
22b75d0a
DM		 3247 local_got_offsets[r_symndx] |= 1;
3248 }
3249 }
ec1acaba
EB		 3250
3251 if (relative_reloc)
3252 {
3253 asection *s;
3254 Elf_Internal_Rela outrel;
3255
3256 /* We need to generate a R_SPARC_RELATIVE reloc
3257 for the dynamic linker. */
3258 s = htab->elf.srelgot;
3259 BFD_ASSERT (s != NULL);
3260
3261 outrel.r_offset = (htab->elf.sgot->output_section->vma
3262 + htab->elf.sgot->output_offset
3263 + off);
3264 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3265 0, R_SPARC_RELATIVE);
3266 outrel.r_addend = relocation;
ec1acaba 3267 sparc_elf_append_rela (output_bfd, s, &outrel);
a9d44aad
AM		 3268 /* Versions of glibc ld.so at least up to 2.26 wrongly
3269 add the section contents to the value calculated for
3270 a RELATIVE reloc. Zero the contents to work around
3271 this bug. */
3272 relocation = 0;
3273 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3274 htab->elf.sgot->contents + off);
ec1acaba
EB		 3275 }
3276
72fbc6e5 3277 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3278 break;
3279
3280 case R_SPARC_PLT32:
3281 case R_SPARC_PLT64:
3282 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3283 {
3284 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3285 goto r_sparc_plt32;
3286 }
3287 /* Fall through. */
3288
3289 case R_SPARC_WPLT30:
3290 case R_SPARC_HIPLT22:
3291 case R_SPARC_LOPLT10:
3292 case R_SPARC_PCPLT32:
3293 case R_SPARC_PCPLT22:
3294 case R_SPARC_PCPLT10:
3295 r_sparc_wplt30:
3296 /* Relocation is to the entry for this symbol in the
3297 procedure linkage table. */
3298
3299 if (! ABI_64_P (output_bfd))
3300 {
3301 /* The Solaris native assembler will generate a WPLT30 reloc
3302 for a local symbol if you assemble a call from one
3303 section to another when using -K pic. We treat it as
3304 WDISP30. */
3305 if (h == NULL)
3306 break;
3307 }
68ffbac6 3308 /* PR 7027: We need similar behaviour for 64-bit binaries. */
af1fb11f
NC		 3309 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3310 break;
22b75d0a
DM		 3311 else
3312 {
3313 BFD_ASSERT (h != NULL);
3314 }
3315
72fbc6e5 3316 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
22b75d0a
DM		 3317 {
3318 /* We didn't make a PLT entry for this symbol. This
3319 happens when statically linking PIC code, or when
3320 using -Bsymbolic. */
3321 break;
3322 }
3323
72fbc6e5
DM		 3324 relocation = (htab->elf.splt->output_section->vma
3325 + htab->elf.splt->output_offset
22b75d0a
DM		 3326 + h->plt.offset);
3327 unresolved_reloc = FALSE;
3328 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3329 {
3330 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3331 is_plt = TRUE;
3332 goto r_sparc_plt32;
3333 }
3334 break;
3335
3336 case R_SPARC_PC10:
3337 case R_SPARC_PC22:
3338 case R_SPARC_PC_HH22:
3339 case R_SPARC_PC_HM10:
3340 case R_SPARC_PC_LM22:
3341 if (h != NULL
3342 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3343 break;
3344 /* Fall through. */
3345 case R_SPARC_DISP8:
3346 case R_SPARC_DISP16:
3347 case R_SPARC_DISP32:
3348 case R_SPARC_DISP64:
3349 case R_SPARC_WDISP30:
3350 case R_SPARC_WDISP22:
3351 case R_SPARC_WDISP19:
3352 case R_SPARC_WDISP16:
2615994e 3353 case R_SPARC_WDISP10:
22b75d0a
DM		 3354 case R_SPARC_8:
3355 case R_SPARC_16:
3356 case R_SPARC_32:
3357 case R_SPARC_HI22:
3358 case R_SPARC_22:
3359 case R_SPARC_13:
3360 case R_SPARC_LO10:
3361 case R_SPARC_UA16:
3362 case R_SPARC_UA32:
3363 case R_SPARC_10:
3364 case R_SPARC_11:
3365 case R_SPARC_64:
3366 case R_SPARC_OLO10:
3367 case R_SPARC_HH22:
3368 case R_SPARC_HM10:
3369 case R_SPARC_LM22:
3370 case R_SPARC_7:
3371 case R_SPARC_5:
3372 case R_SPARC_6:
3373 case R_SPARC_HIX22:
3374 case R_SPARC_LOX10:
3375 case R_SPARC_H44:
3376 case R_SPARC_M44:
3377 case R_SPARC_L44:
2615994e 3378 case R_SPARC_H34:
22b75d0a
DM		 3379 case R_SPARC_UA64:
3380 r_sparc_plt32:
3348747a
NS		 3381 if ((input_section->flags & SEC_ALLOC) == 0
3382 || is_vxworks_tls)
22b75d0a
DM		 3383 break;
3384
07d6d2b8
AM		 3385 /* Copy dynamic function pointer relocations. Don't generate
3386 dynamic relocations against resolved undefined weak symbols
3387 in PIE. */
0e1862bb 3388 if ((bfd_link_pic (info)
22b75d0a 3389 && (h == NULL
bb1dd176 3390 || ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
07d6d2b8 3391 && !resolved_to_zero)
bb1dd176 3392 || h->root.type != bfd_link_hash_undefweak))
22b75d0a 3393 && (! howto->pc_relative
72fbc6e5 3394 || !SYMBOL_CALLS_LOCAL (info, h)))
0e1862bb 3395 || (!bfd_link_pic (info)
22b75d0a
DM		 3396 && h != NULL
3397 && h->dynindx != -1
3398 && !h->non_got_ref
3399 && ((h->def_dynamic
3400 && !h->def_regular)
bb1dd176 3401 || (h->root.type == bfd_link_hash_undefweak
07d6d2b8 3402 && !resolved_to_zero)
22b75d0a
DM		 3403 || h->root.type == bfd_link_hash_undefined)))
3404 {
3405 Elf_Internal_Rela outrel;
3406 bfd_boolean skip, relocate = FALSE;
3407
3408 /* When generating a shared object, these relocations
3409 are copied into the output file to be resolved at run
3410 time. */
3411
3412 BFD_ASSERT (sreloc != NULL);
3413
3414 skip = FALSE;
3415
3416 outrel.r_offset =
3417 _bfd_elf_section_offset (output_bfd, info, input_section,
3418 rel->r_offset);
3419 if (outrel.r_offset == (bfd_vma) -1)
3420 skip = TRUE;
3421 else if (outrel.r_offset == (bfd_vma) -2)
3422 skip = TRUE, relocate = TRUE;
3423 outrel.r_offset += (input_section->output_section->vma
3424 + input_section->output_offset);
3425
3426 /* Optimize unaligned reloc usage now that we know where
3427 it finally resides. */
3428 switch (r_type)
3429 {
3430 case R_SPARC_16:
3431 if (outrel.r_offset & 1)
3432 r_type = R_SPARC_UA16;
3433 break;
3434 case R_SPARC_UA16:
3435 if (!(outrel.r_offset & 1))
3436 r_type = R_SPARC_16;
3437 break;
3438 case R_SPARC_32:
3439 if (outrel.r_offset & 3)
3440 r_type = R_SPARC_UA32;
3441 break;
3442 case R_SPARC_UA32:
3443 if (!(outrel.r_offset & 3))
3444 r_type = R_SPARC_32;
3445 break;
3446 case R_SPARC_64:
3447 if (outrel.r_offset & 7)
3448 r_type = R_SPARC_UA64;
3449 break;
3450 case R_SPARC_UA64:
3451 if (!(outrel.r_offset & 7))
3452 r_type = R_SPARC_64;
3453 break;
07d6d2b8 3454 case R_SPARC_DISP8:
22b75d0a 3455 case R_SPARC_DISP16:
07d6d2b8
AM		 3456 case R_SPARC_DISP32:
3457 case R_SPARC_DISP64:
22b75d0a
DM		 3458 /* If the symbol is not dynamic, we should not keep
3459 a dynamic relocation. But an .rela.* slot has been
3460 allocated for it, output R_SPARC_NONE.
3461 FIXME: Add code tracking needed dynamic relocs as
3462 e.g. i386 has. */
3463 if (h->dynindx == -1)
3464 skip = TRUE, relocate = TRUE;
3465 break;
3466 }
3467
3468 if (skip)
3469 memset (&outrel, 0, sizeof outrel);
3470 /* h->dynindx may be -1 if the symbol was marked to
3471 become local. */
886a2506
NC		 3472 else if (h != NULL
3473 && h->dynindx != -1
3474 && (_bfd_sparc_elf_howto_table[r_type].pc_relative
0e1862bb 3475 || !bfd_link_pic (info)
72fbc6e5 3476 || !SYMBOLIC_BIND (info, h)
22b75d0a
DM		 3477 || !h->def_regular))
3478 {
3479 BFD_ASSERT (h->dynindx != -1);
3480 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3481 outrel.r_addend = rel->r_addend;
3482 }
3483 else
3484 {
7160c10d
JC		 3485 if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3486 || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
22b75d0a
DM		 3487 {
3488 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3489 0, R_SPARC_RELATIVE);
3490 outrel.r_addend = relocation + rel->r_addend;
3491 }
3492 else
3493 {
3494 long indx;
3495
74541ad4
AM		 3496 outrel.r_addend = relocation + rel->r_addend;
3497
22b75d0a 3498 if (is_plt)
72fbc6e5 3499 sec = htab->elf.splt;
22b75d0a
DM		 3500
3501 if (bfd_is_abs_section (sec))
3502 indx = 0;
3503 else if (sec == NULL || sec->owner == NULL)
3504 {
3505 bfd_set_error (bfd_error_bad_value);
3506 return FALSE;
3507 }
3508 else
3509 {
3510 asection *osec;
3511
74541ad4
AM		 3512 /* We are turning this relocation into one
3513 against a section symbol. It would be
3514 proper to subtract the symbol's value,
3515 osec->vma, from the emitted reloc addend,
3516 but ld.so expects buggy relocs. */
22b75d0a
DM		 3517 osec = sec->output_section;
3518 indx = elf_section_data (osec)->dynindx;
3519
74541ad4
AM		 3520 if (indx == 0)
3521 {
3522 osec = htab->elf.text_index_section;
3523 indx = elf_section_data (osec)->dynindx;
3524 }
3525
22b75d0a
DM		 3526 /* FIXME: we really should be able to link non-pic
3527 shared libraries. */
3528 if (indx == 0)
3529 {
3530 BFD_FAIL ();
4eca0228 3531 _bfd_error_handler
22b75d0a
DM		 3532 (_("%B: probably compiled without -fPIC?"),
3533 input_bfd);
3534 bfd_set_error (bfd_error_bad_value);
3535 return FALSE;
3536 }
3537 }
3538
74541ad4
AM		 3539 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3540 r_type);
22b75d0a
DM		 3541 }
3542 }
3543
39817122 3544 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3545
3546 /* This reloc will be computed at runtime, so there's no
3547 need to do anything now. */
3548 if (! relocate)
3549 continue;
3550 }
3551 break;
3552
3553 case R_SPARC_TLS_GD_HI22:
3554 if (! ABI_64_P (input_bfd)
3555 && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
3556 {
3557 /* R_SPARC_REV32 used the same reloc number as
3558 R_SPARC_TLS_GD_HI22. */
3559 r_type = R_SPARC_REV32;
3560 break;
3561 }
3562 /* Fall through */
3563
3564 case R_SPARC_TLS_GD_LO10:
3565 case R_SPARC_TLS_IE_HI22:
3566 case R_SPARC_TLS_IE_LO10:
3567 r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
3568 tls_type = GOT_UNKNOWN;
3569 if (h == NULL && local_got_offsets)
3570 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3571 else if (h != NULL)
3572 {
3573 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
bb363086 3574 if (!bfd_link_pic (info)
0e1862bb
L		 3575 && h->dynindx == -1
3576 && tls_type == GOT_TLS_IE)
22b75d0a
DM		 3577 switch (SPARC_ELF_R_TYPE (rel->r_info))
3578 {
3579 case R_SPARC_TLS_GD_HI22:
3580 case R_SPARC_TLS_IE_HI22:
3581 r_type = R_SPARC_TLS_LE_HIX22;
3582 break;
3583 default:
3584 r_type = R_SPARC_TLS_LE_LOX10;
3585 break;
3586 }
3587 }
3588 if (tls_type == GOT_TLS_IE)
3589 switch (r_type)
3590 {
3591 case R_SPARC_TLS_GD_HI22:
3592 r_type = R_SPARC_TLS_IE_HI22;
3593 break;
3594 case R_SPARC_TLS_GD_LO10:
3595 r_type = R_SPARC_TLS_IE_LO10;
3596 break;
3597 }
3598
3599 if (r_type == R_SPARC_TLS_LE_HIX22)
3600 {
3601 relocation = tpoff (info, relocation);
3602 break;
3603 }
3604 if (r_type == R_SPARC_TLS_LE_LOX10)
3605 {
3606 /* Change add into xor. */
3607 relocation = tpoff (info, relocation);
3608 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3609 contents + rel->r_offset)
3610 | 0x80182000), contents + rel->r_offset);
3611 break;
3612 }
3613
3614 if (h != NULL)
3615 {
3616 off = h->got.offset;
3617 h->got.offset |= 1;
3618 }
3619 else
3620 {
3621 BFD_ASSERT (local_got_offsets != NULL);
3622 off = local_got_offsets[r_symndx];
3623 local_got_offsets[r_symndx] |= 1;
3624 }
3625
3626 r_sparc_tlsldm:
72fbc6e5 3627 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3628 abort ();
3629
3630 if ((off & 1) != 0)
3631 off &= ~1;
3632 else
3633 {
3634 Elf_Internal_Rela outrel;
3635 int dr_type, indx;
3636
72fbc6e5 3637 if (htab->elf.srelgot == NULL)
22b75d0a
DM		 3638 abort ();
3639
72fbc6e5
DM		 3640 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3641 htab->elf.sgot->contents + off);
3642 outrel.r_offset = (htab->elf.sgot->output_section->vma
3643 + htab->elf.sgot->output_offset + off);
22b75d0a
DM		 3644 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3645 if (r_type == R_SPARC_TLS_IE_HI22
3646 || r_type == R_SPARC_TLS_IE_LO10)
3647 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3648 else
3649 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3650 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3651 outrel.r_addend = relocation - dtpoff_base (info);
3652 else
3653 outrel.r_addend = 0;
3654 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
72fbc6e5 3655 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
22b75d0a
DM		 3656
3657 if (r_type == R_SPARC_TLS_GD_HI22
3658 || r_type == R_SPARC_TLS_GD_LO10)
3659 {
3660 if (indx == 0)
3661 {
07d6d2b8 3662 BFD_ASSERT (! unresolved_reloc);
22b75d0a
DM		 3663 SPARC_ELF_PUT_WORD (htab, output_bfd,
3664 relocation - dtpoff_base (info),
72fbc6e5 3665 (htab->elf.sgot->contents + off
22b75d0a
DM		 3666 + SPARC_ELF_WORD_BYTES (htab)));
3667 }
3668 else
3669 {
3670 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3671 (htab->elf.sgot->contents + off
22b75d0a
DM		 3672 + SPARC_ELF_WORD_BYTES (htab)));
3673 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3674 SPARC_ELF_DTPOFF_RELOC (htab));
3675 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
72fbc6e5 3676 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
39817122 3677 &outrel);
22b75d0a
DM		 3678 }
3679 }
3680 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3681 {
3682 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3683 (htab->elf.sgot->contents + off
22b75d0a
DM		 3684 + SPARC_ELF_WORD_BYTES (htab)));
3685 }
3686 }
3687
3688 if (off >= (bfd_vma) -2)
3689 abort ();
3690
72fbc6e5 3691 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3692 unresolved_reloc = FALSE;
3693 howto = _bfd_sparc_elf_howto_table + r_type;
3694 break;
3695
3696 case R_SPARC_TLS_LDM_HI22:
3697 case R_SPARC_TLS_LDM_LO10:
0e1862bb 3698 if (! bfd_link_pic (info))
22b75d0a
DM		 3699 {
3700 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3701 continue;
3702 }
3703 off = htab->tls_ldm_got.offset;
3704 htab->tls_ldm_got.offset |= 1;
3705 goto r_sparc_tlsldm;
3706
3707 case R_SPARC_TLS_LDO_HIX22:
3708 case R_SPARC_TLS_LDO_LOX10:
0e1862bb 3709 if (bfd_link_pic (info))
22b75d0a
DM		 3710 {
3711 relocation -= dtpoff_base (info);
3712 break;
3713 }
3714
3715 r_type = (r_type == R_SPARC_TLS_LDO_HIX22
3716 ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
3717 /* Fall through. */
3718
3719 case R_SPARC_TLS_LE_HIX22:
3720 case R_SPARC_TLS_LE_LOX10:
bb363086 3721 if (bfd_link_pic (info))
22b75d0a
DM		 3722 {
3723 Elf_Internal_Rela outrel;
c7e2358a 3724 bfd_boolean skip;
22b75d0a
DM		 3725
3726 BFD_ASSERT (sreloc != NULL);
3727 skip = FALSE;
3728 outrel.r_offset =
3729 _bfd_elf_section_offset (output_bfd, info, input_section,
3730 rel->r_offset);
3731 if (outrel.r_offset == (bfd_vma) -1)
3732 skip = TRUE;
3733 else if (outrel.r_offset == (bfd_vma) -2)
c7e2358a 3734 skip = TRUE;
22b75d0a
DM		 3735 outrel.r_offset += (input_section->output_section->vma
3736 + input_section->output_offset);
3737 if (skip)
3738 memset (&outrel, 0, sizeof outrel);
3739 else
3740 {
3741 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3742 outrel.r_addend = relocation - dtpoff_base (info)
3743 + rel->r_addend;
3744 }
3745
39817122 3746 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3747 continue;
3748 }
3749 relocation = tpoff (info, relocation);
3750 break;
3751
3752 case R_SPARC_TLS_LDM_CALL:
bb363086 3753 if (! bfd_link_pic (info))
22b75d0a
DM		 3754 {
3755 /* mov %g0, %o0 */
3756 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3757 continue;
3758 }
3759 /* Fall through */
3760
3761 case R_SPARC_TLS_GD_CALL:
3762 tls_type = GOT_UNKNOWN;
3763 if (h == NULL && local_got_offsets)
3764 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3765 else if (h != NULL)
3766 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
bb363086 3767 if (! bfd_link_pic (info)
22b75d0a
DM		 3768 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3769 {
abd242a9 3770 Elf_Internal_Rela *rel2;
22b75d0a
DM		 3771 bfd_vma insn;
3772
0e1862bb 3773 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
22b75d0a
DM		 3774 {
3775 /* GD -> LE */
3776 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3777 continue;
3778 }
3779
3780 /* GD -> IE */
3781 if (rel + 1 < relend
3782 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3783 && rel[1].r_offset == rel->r_offset + 4
3784 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3785 && (((insn = bfd_get_32 (input_bfd,
3786 contents + rel[1].r_offset))
3787 >> 25) & 0x1f) == 8)
3788 {
3789 /* We have
3790 call __tls_get_addr, %tgd_call(foo)
3791 add %reg1, %reg2, %o0, %tgd_add(foo)
3792 and change it into IE:
3793 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3794 add %g7, %o0, %o0, %tie_add(foo).
3795 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3796 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3797 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3798 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3799 contents + rel->r_offset);
3800 bfd_put_32 (output_bfd, 0x9001c008,
3801 contents + rel->r_offset + 4);
3802 rel++;
3803 continue;
3804 }
3805
abd242a9
DM		 3806 /* We cannot just overwrite the delay slot instruction,
3807 as it might be what puts the %o0 argument to
3808 __tls_get_addr into place. So we have to transpose
3809 the delay slot with the add we patch in. */
3810 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3811 bfd_put_32 (output_bfd, insn,
3812 contents + rel->r_offset);
3813 bfd_put_32 (output_bfd, 0x9001c008,
3814 contents + rel->r_offset + 4);
3815
3816 rel2 = rel;
3817 while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3818 rel->r_offset + 4))
3819 != NULL)
3820 {
3821 /* If the instruction we moved has a relocation attached to
3822 it, adjust the offset so that it will apply to the correct
3823 instruction. */
3824 rel2->r_offset -= 4;
3825 }
22b75d0a
DM		 3826 continue;
3827 }
3828
3829 h = (struct elf_link_hash_entry *)
3830 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3831 FALSE, TRUE);
3832 BFD_ASSERT (h != NULL);
3833 r_type = R_SPARC_WPLT30;
3834 howto = _bfd_sparc_elf_howto_table + r_type;
3835 goto r_sparc_wplt30;
3836
3837 case R_SPARC_TLS_GD_ADD:
3838 tls_type = GOT_UNKNOWN;
3839 if (h == NULL && local_got_offsets)
3840 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3841 else if (h != NULL)
3842 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
0e1862bb 3843 if (! bfd_link_pic (info) || tls_type == GOT_TLS_IE)
22b75d0a
DM		 3844 {
3845 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3846 changed into IE:
3847 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3848 or LE:
3849 add %g7, %reg2, %reg3. */
3850 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
0e1862bb 3851 if ((h != NULL && h->dynindx != -1) || bfd_link_pic (info))
22b75d0a
DM		 3852 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
3853 else
3854 relocation = (insn & ~0x7c000) | 0x1c000;
3855 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3856 }
3857 continue;
3858
3859 case R_SPARC_TLS_LDM_ADD:
0e1862bb 3860 if (! bfd_link_pic (info))
22b75d0a
DM		 3861 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3862 continue;
3863
3864 case R_SPARC_TLS_LDO_ADD:
0e1862bb 3865 if (! bfd_link_pic (info))
22b75d0a
DM		 3866 {
3867 /* Change rs1 into %g7. */
3868 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3869 insn = (insn & ~0x7c000) | 0x1c000;
3870 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3871 }
3872 continue;
3873
3874 case R_SPARC_TLS_IE_LD:
3875 case R_SPARC_TLS_IE_LDX:
bb363086 3876 if (! bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
22b75d0a
DM		 3877 {
3878 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3879 int rs2 = insn & 0x1f;
3880 int rd = (insn >> 25) & 0x1f;
3881
3882 if (rs2 == rd)
3883 relocation = SPARC_NOP;
3884 else
3885 relocation = 0x80100000 | (insn & 0x3e00001f);
3886 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3887 }
3888 continue;
3889
3890 case R_SPARC_TLS_IE_ADD:
3891 /* Totally useless relocation. */
3892 continue;
3893
3894 case R_SPARC_TLS_DTPOFF32:
3895 case R_SPARC_TLS_DTPOFF64:
3896 relocation -= dtpoff_base (info);
3897 break;
3898
3899 default:
3900 break;
3901 }
3902
3903 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3904 because such sections are not SEC_ALLOC and thus ld.so will
3905 not process them. */
3906 if (unresolved_reloc
3907 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 3908 && h->def_dynamic)
3909 && _bfd_elf_section_offset (output_bfd, info, input_section,
3910 rel->r_offset) != (bfd_vma) -1)
4eca0228 3911 _bfd_error_handler
695344c0 3912 /* xgettext:c-format */
d42c267e 3913 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
22b75d0a
DM		 3914 input_bfd,
3915 input_section,
d42c267e 3916 rel->r_offset,
843fe662 3917 howto->name,
22b75d0a
DM		 3918 h->root.root.string);
3919
3920 r = bfd_reloc_continue;
3921 if (r_type == R_SPARC_OLO10)
3922 {
3923 bfd_vma x;
3924
3925 if (! ABI_64_P (output_bfd))
3926 abort ();
3927
3928 relocation += rel->r_addend;
3929 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3930
3931 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3932 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3933 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3934
3935 r = bfd_check_overflow (howto->complain_on_overflow,
3936 howto->bitsize, howto->rightshift,
3937 bfd_arch_bits_per_address (input_bfd),
3938 relocation);
3939 }
3940 else if (r_type == R_SPARC_WDISP16)
3941 {
3942 bfd_vma x;
3943
3944 relocation += rel->r_addend;
3945 relocation -= (input_section->output_section->vma
3946 + input_section->output_offset);
3947 relocation -= rel->r_offset;
3948
3949 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3950 x |= ((((relocation >> 2) & 0xc000) << 6)
3951 | ((relocation >> 2) & 0x3fff));
3952 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3953
2615994e
DM		 3954 r = bfd_check_overflow (howto->complain_on_overflow,
3955 howto->bitsize, howto->rightshift,
3956 bfd_arch_bits_per_address (input_bfd),
3957 relocation);
3958 }
3959 else if (r_type == R_SPARC_WDISP10)
3960 {
3961 bfd_vma x;
3962
3963 relocation += rel->r_addend;
3964 relocation -= (input_section->output_section->vma
3965 + input_section->output_offset);
3966 relocation -= rel->r_offset;
3967
3968 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3969 x |= ((((relocation >> 2) & 0x300) << 11)
3970 | (((relocation >> 2) & 0xff) << 5));
3971 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3972
22b75d0a
DM		 3973 r = bfd_check_overflow (howto->complain_on_overflow,
3974 howto->bitsize, howto->rightshift,
3975 bfd_arch_bits_per_address (input_bfd),
3976 relocation);
3977 }
3978 else if (r_type == R_SPARC_REV32)
3979 {
3980 bfd_vma x;
3981
3982 relocation = relocation + rel->r_addend;
3983
3984 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3985 x = x + relocation;
3986 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
3987 r = bfd_reloc_ok;
3988 }
3989 else if (r_type == R_SPARC_TLS_LDO_HIX22
3990 || r_type == R_SPARC_TLS_LE_HIX22)
3991 {
3992 bfd_vma x;
3993
3994 relocation += rel->r_addend;
3995 if (r_type == R_SPARC_TLS_LE_HIX22)
3996 relocation ^= MINUS_ONE;
3997
3998 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3999 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4000 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4001 r = bfd_reloc_ok;
4002 }
4003 else if (r_type == R_SPARC_TLS_LDO_LOX10
4004 || r_type == R_SPARC_TLS_LE_LOX10)
4005 {
4006 bfd_vma x;
4007
4008 relocation += rel->r_addend;
4009 relocation &= 0x3ff;
4010 if (r_type == R_SPARC_TLS_LE_LOX10)
4011 relocation |= 0x1c00;
4012
4013 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4014 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4015 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4016
4017 r = bfd_reloc_ok;
4018 }
00c50991 4019 else if (r_type == R_SPARC_HIX22
cc133f9f
JC		 4020 || r_type == R_SPARC_GOTDATA_HIX22
4021 || r_type == R_SPARC_GOTDATA_OP_HIX22)
22b75d0a
DM		 4022 {
4023 bfd_vma x;
4024
4025 relocation += rel->r_addend;
00c50991
DM		 4026 if (r_type == R_SPARC_HIX22
4027 || (bfd_signed_vma) relocation < 0)
4028 relocation = relocation ^ MINUS_ONE;
22b75d0a
DM		 4029
4030 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4031 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4032 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4033
4034 r = bfd_check_overflow (howto->complain_on_overflow,
4035 howto->bitsize, howto->rightshift,
4036 bfd_arch_bits_per_address (input_bfd),
4037 relocation);
4038 }
00c50991 4039 else if (r_type == R_SPARC_LOX10
cc133f9f
JC		 4040 || r_type == R_SPARC_GOTDATA_LOX10
4041 || r_type == R_SPARC_GOTDATA_OP_LOX10)
22b75d0a
DM		 4042 {
4043 bfd_vma x;
4044
4045 relocation += rel->r_addend;
00c50991
DM		 4046 if (r_type == R_SPARC_LOX10
4047 || (bfd_signed_vma) relocation < 0)
4048 relocation = (relocation & 0x3ff) | 0x1c00;
4049 else
4050 relocation = (relocation & 0x3ff);
22b75d0a
DM		 4051
4052 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4053 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4054 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4055
4056 r = bfd_reloc_ok;
4057 }
4058 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
4059 && sec_do_relax (input_section)
4060 && rel->r_offset + 4 < input_section->size)
4061 {
4062#define G0 0
4063#define O7 15
4064#define XCC (2 << 20)
4065#define COND(x) (((x)&0xf)<<25)
4066#define CONDA COND(0x8)
4067#define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
4068#define INSN_BA (F2(0,2) | CONDA)
4069#define INSN_OR F3(2, 0x2, 0)
4070#define INSN_NOP F2(0,4)
4071
4072 bfd_vma x, y;
4073
4074 /* If the instruction is a call with either:
4075 restore
4076 arithmetic instruction with rd == %o7
4077 where rs1 != %o7 and rs2 if it is register != %o7
4078 then we can optimize if the call destination is near
4079 by changing the call into a branch always. */
4080 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4081 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
4082 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
4083 {
4084 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
4085 || ((y & OP3(0x28)) == 0 /* arithmetic */
4086 && (y & RD(~0)) == RD(O7)))
4087 && (y & RS1(~0)) != RS1(O7)
4088 && ((y & F3I(~0))
4089 || (y & RS2(~0)) != RS2(O7)))
4090 {
4091 bfd_vma reloc;
4092
4093 reloc = relocation + rel->r_addend - rel->r_offset;
4094 reloc -= (input_section->output_section->vma
4095 + input_section->output_offset);
4096
4097 /* Ensure the branch fits into simm22. */
4098 if ((reloc & 3) == 0
4099 && ((reloc & ~(bfd_vma)0x7fffff) == 0
4100 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4101 {
4102 reloc >>= 2;
4103
4104 /* Check whether it fits into simm19. */
4105 if (((reloc & 0x3c0000) == 0
4106 || (reloc & 0x3c0000) == 0x3c0000)
4107 && (ABI_64_P (output_bfd)
4108 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4109 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4110 else
4111 x = INSN_BA | (reloc & 0x3fffff); /* ba */
4112 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4113 r = bfd_reloc_ok;
4114 if (rel->r_offset >= 4
4115 && (y & (0xffffffff ^ RS1(~0)))
4116 == (INSN_OR | RD(O7) | RS2(G0)))
4117 {
4118 bfd_vma z;
4119 unsigned int reg;
4120
4121 z = bfd_get_32 (input_bfd,
4122 contents + rel->r_offset - 4);
4123 if ((z & (0xffffffff ^ RD(~0)))
4124 != (INSN_OR | RS1(O7) | RS2(G0)))
597e138c 4125 continue;
22b75d0a
DM		 4126
4127 /* The sequence was
4128 or %o7, %g0, %rN
4129 call foo
4130 or %rN, %g0, %o7
4131
4132 If call foo was replaced with ba, replace
4133 or %rN, %g0, %o7 with nop. */
4134
4135 reg = (y & RS1(~0)) >> 14;
4136 if (reg != ((z & RD(~0)) >> 25)
4137 || reg == G0 || reg == O7)
597e138c 4138 continue;
22b75d0a
DM		 4139
4140 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4141 contents + rel->r_offset + 4);
4142 }
4143
4144 }
4145 }
4146 }
4147 }
4148
4149 if (r == bfd_reloc_continue)
d0c9aeb3
DM		 4150 {
4151do_relocation:
4152 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4153 contents, rel->r_offset,
4154 relocation, rel->r_addend);
4155 }
22b75d0a
DM		 4156 if (r != bfd_reloc_ok)
4157 {
4158 switch (r)
4159 {
4160 default:
4161 case bfd_reloc_outofrange:
4162 abort ();
4163 case bfd_reloc_overflow:
4164 {
4165 const char *name;
4166
68ffbac6 4167 /* The Solaris native linker silently disregards overflows.
dc669dc8
EB		 4168 We don't, but this breaks stabs debugging info, whose
4169 relocations are only 32-bits wide. Ignore overflows in
4170 this case and also for discarded entries. */
0bef263a
RO		 4171 if ((r_type == R_SPARC_32
4172 || r_type == R_SPARC_UA32
4173 || r_type == R_SPARC_DISP32)
dc669dc8
EB		 4174 && (((input_section->flags & SEC_DEBUGGING) != 0
4175 && strcmp (bfd_section_name (input_bfd,
4176 input_section),
4177 ".stab") == 0)
4178 || _bfd_elf_section_offset (output_bfd, info,
4179 input_section,
4180 rel->r_offset)
4181 == (bfd_vma)-1))
4182 break;
4183
22b75d0a 4184 if (h != NULL)
bb29dfea
EB		 4185 {
4186 /* Assume this is a call protected by other code that
4187 detect the symbol is undefined. If this is the case,
4188 we can safely ignore the overflow. If not, the
4189 program is hosed anyway, and a little warning isn't
4190 going to help. */
4191 if (h->root.type == bfd_link_hash_undefweak
4192 && howto->pc_relative)
4193 break;
4194
07d6d2b8 4195 name = NULL;
bb29dfea 4196 }
22b75d0a
DM		 4197 else
4198 {
4199 name = bfd_elf_string_from_elf_section (input_bfd,
4200 symtab_hdr->sh_link,
4201 sym->st_name);
4202 if (name == NULL)
4203 return FALSE;
4204 if (*name == '\0')
4205 name = bfd_section_name (input_bfd, sec);
4206 }
1a72702b
AM		 4207 (*info->callbacks->reloc_overflow)
4208 (info, (h ? &h->root : NULL), name, howto->name,
4209 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
22b75d0a
DM		 4210 }
4211 break;
4212 }
4213 }
4214 }
4215
4216 return TRUE;
4217}
4218
910600e9
RS		 4219/* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4220 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4221 is the offset of the associated .got.plt entry from
4222 _GLOBAL_OFFSET_TABLE_. */
4223
4224static void
4225sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4226 bfd_vma plt_offset, bfd_vma plt_index,
4227 bfd_vma got_offset)
4228{
4229 bfd_vma got_base;
4230 const bfd_vma *plt_entry;
4231 struct _bfd_sparc_elf_link_hash_table *htab;
4232 bfd_byte *loc;
4233 Elf_Internal_Rela rela;
4234
4235 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4236 BFD_ASSERT (htab != NULL);
4237
0e1862bb 4238 if (bfd_link_pic (info))
910600e9
RS		 4239 {
4240 plt_entry = sparc_vxworks_shared_plt_entry;
4241 got_base = 0;
4242 }
4243 else
4244 {
4245 plt_entry = sparc_vxworks_exec_plt_entry;
4246 got_base = (htab->elf.hgot->root.u.def.value
4247 + htab->elf.hgot->root.u.def.section->output_offset
4248 + htab->elf.hgot->root.u.def.section->output_section->vma);
4249 }
4250
4251 /* Fill in the entry in the procedure linkage table. */
4252 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
72fbc6e5 4253 htab->elf.splt->contents + plt_offset);
910600e9 4254 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
72fbc6e5 4255 htab->elf.splt->contents + plt_offset + 4);
910600e9 4256 bfd_put_32 (output_bfd, plt_entry[2],
72fbc6e5 4257 htab->elf.splt->contents + plt_offset + 8);
910600e9 4258 bfd_put_32 (output_bfd, plt_entry[3],
72fbc6e5 4259 htab->elf.splt->contents + plt_offset + 12);
910600e9 4260 bfd_put_32 (output_bfd, plt_entry[4],
72fbc6e5 4261 htab->elf.splt->contents + plt_offset + 16);
910600e9 4262 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
72fbc6e5 4263 htab->elf.splt->contents + plt_offset + 20);
910600e9
RS		 4264 /* PC-relative displacement for a branch to the start of
4265 the PLT section. */
4266 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4267 & 0x003fffff),
72fbc6e5 4268 htab->elf.splt->contents + plt_offset + 24);
910600e9 4269 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
72fbc6e5 4270 htab->elf.splt->contents + plt_offset + 28);
910600e9
RS		 4271
4272 /* Fill in the .got.plt entry, pointing initially at the
4273 second half of the PLT entry. */
72fbc6e5 4274 BFD_ASSERT (htab->elf.sgotplt != NULL);
910600e9 4275 bfd_put_32 (output_bfd,
72fbc6e5
DM		 4276 htab->elf.splt->output_section->vma
4277 + htab->elf.splt->output_offset
910600e9 4278 + plt_offset + 20,
72fbc6e5 4279 htab->elf.sgotplt->contents + got_offset);
910600e9
RS		 4280
4281 /* Add relocations to .rela.plt.unloaded. */
0e1862bb 4282 if (!bfd_link_pic (info))
910600e9
RS		 4283 {
4284 loc = (htab->srelplt2->contents
4285 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4286
4287 /* Relocate the initial sethi. */
72fbc6e5
DM		 4288 rela.r_offset = (htab->elf.splt->output_section->vma
4289 + htab->elf.splt->output_offset
910600e9
RS		 4290 + plt_offset);
4291 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4292 rela.r_addend = got_offset;
4293 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4294 loc += sizeof (Elf32_External_Rela);
4295
4296 /* Likewise the following or. */
4297 rela.r_offset += 4;
4298 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4299 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4300 loc += sizeof (Elf32_External_Rela);
4301
4302 /* Relocate the .got.plt entry. */
72fbc6e5
DM		 4303 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4304 + htab->elf.sgotplt->output_offset
910600e9
RS		 4305 + got_offset);
4306 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4307 rela.r_addend = plt_offset + 20;
4308 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4309 }
4310}
4311
22b75d0a
DM		 4312/* Finish up dynamic symbol handling. We set the contents of various
4313 dynamic sections here. */
4314
4315bfd_boolean
4316_bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4317 struct bfd_link_info *info,
4318 struct elf_link_hash_entry *h,
4319 Elf_Internal_Sym *sym)
4320{
22b75d0a 4321 struct _bfd_sparc_elf_link_hash_table *htab;
39817122 4322 const struct elf_backend_data *bed;
bb1dd176
QZ		 4323 struct _bfd_sparc_elf_link_hash_entry *eh;
4324 bfd_boolean local_undefweak;
22b75d0a
DM		 4325
4326 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4327 BFD_ASSERT (htab != NULL);
39817122 4328 bed = get_elf_backend_data (output_bfd);
22b75d0a 4329
bb1dd176
QZ		 4330 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4331
4332 /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4333 resolved undefined weak symbols in executable so that their
4334 references have value 0 at run-time. */
4335 local_undefweak = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
4336
22b75d0a
DM		 4337 if (h->plt.offset != (bfd_vma) -1)
4338 {
4339 asection *splt;
4340 asection *srela;
4341 Elf_Internal_Rela rela;
4342 bfd_byte *loc;
910600e9 4343 bfd_vma r_offset, got_offset;
22b75d0a
DM		 4344 int rela_index;
4345
d0c9aeb3
DM		 4346 /* When building a static executable, use .iplt and
4347 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4348 if (htab->elf.splt != NULL)
4349 {
4350 splt = htab->elf.splt;
4351 srela = htab->elf.srelplt;
4352 }
4353 else
4354 {
4355 splt = htab->elf.iplt;
4356 srela = htab->elf.irelplt;
4357 }
22b75d0a 4358
d0c9aeb3
DM		 4359 if (splt == NULL || srela == NULL)
4360 abort ();
22b75d0a 4361
22b75d0a 4362 /* Fill in the entry in the .rela.plt section. */
910600e9 4363 if (htab->is_vxworks)
22b75d0a 4364 {
910600e9
RS		 4365 /* Work out the index of this PLT entry. */
4366 rela_index = ((h->plt.offset - htab->plt_header_size)
4367 / htab->plt_entry_size);
4368
4369 /* Calculate the offset of the associated .got.plt entry.
4370 The first three entries are reserved. */
4371 got_offset = (rela_index + 3) * 4;
4372
4373 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4374 rela_index, got_offset);
4375
4376
4377 /* On VxWorks, the relocation points to the .got.plt entry,
4378 not the .plt entry. */
72fbc6e5
DM		 4379 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4380 + htab->elf.sgotplt->output_offset
910600e9 4381 + got_offset);
22b75d0a 4382 rela.r_addend = 0;
d0c9aeb3
DM		 4383 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4384 R_SPARC_JMP_SLOT);
22b75d0a
DM		 4385 }
4386 else
4387 {
d0c9aeb3
DM		 4388 bfd_boolean ifunc = FALSE;
4389
910600e9
RS		 4390 /* Fill in the entry in the procedure linkage table. */
4391 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4392 h->plt.offset, splt->size,
4393 &r_offset);
4394
d0c9aeb3
DM		 4395 if (h == NULL
4396 || h->dynindx == -1
0e1862bb 4397 || ((bfd_link_executable (info)
d0c9aeb3
DM		 4398 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4399 && h->def_regular
4400 && h->type == STT_GNU_IFUNC))
4401 {
4402 ifunc = TRUE;
4403 BFD_ASSERT (h == NULL
4404 || (h->type == STT_GNU_IFUNC
4405 && h->def_regular
4406 && (h->root.type == bfd_link_hash_defined
4407 || h->root.type == bfd_link_hash_defweak)));
4408 }
4409
910600e9
RS		 4410 rela.r_offset = r_offset
4411 + (splt->output_section->vma + splt->output_offset);
d0c9aeb3
DM		 4412 if (ABI_64_P (output_bfd)
4413 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
910600e9 4414 {
d0c9aeb3
DM		 4415 if (ifunc)
4416 {
4417 rela.r_addend = (h->root.u.def.section->output_section->vma
4418 + h->root.u.def.section->output_offset
4419 + h->root.u.def.value);
4420 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4421 R_SPARC_IRELATIVE);
4422 }
4423 else
4424 {
4425 rela.r_addend = (-(h->plt.offset + 4)
4426 - splt->output_section->vma
4427 - splt->output_offset);
4428 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4429 R_SPARC_JMP_SLOT);
4430 }
910600e9
RS		 4431 }
4432 else
4433 {
d0c9aeb3
DM		 4434 if (ifunc)
4435 {
4436 rela.r_addend = (h->root.u.def.section->output_section->vma
4437 + h->root.u.def.section->output_offset
4438 + h->root.u.def.value);
4439 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4440 R_SPARC_JMP_IREL);
4441 }
4442 else
4443 {
4444 rela.r_addend = 0;
4445 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4446 R_SPARC_JMP_SLOT);
4447 }
910600e9 4448 }
22b75d0a 4449 }
22b75d0a
DM		 4450
4451 /* Adjust for the first 4 reserved elements in the .plt section
4452 when setting the offset in the .rela.plt section.
4453 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4454 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4455
4456 loc = srela->contents;
39817122
RS		 4457 loc += rela_index * bed->s->sizeof_rela;
4458 bed->s->swap_reloca_out (output_bfd, &rela, loc);
22b75d0a 4459
bb1dd176 4460 if (!local_undefweak
07d6d2b8 4461 && !h->def_regular)
22b75d0a
DM		 4462 {
4463 /* Mark the symbol as undefined, rather than as defined in
4464 the .plt section. Leave the value alone. */
4465 sym->st_shndx = SHN_UNDEF;
4466 /* If the symbol is weak, we do need to clear the value.
4467 Otherwise, the PLT entry would provide a definition for
4468 the symbol even if the symbol wasn't defined anywhere,
4469 and so the symbol would never be NULL. */
4470 if (!h->ref_regular_nonweak)
4471 sym->st_value = 0;
4472 }
4473 }
4474
bb1dd176
QZ		 4475 /* Don't generate dynamic GOT relocation against undefined weak
4476 symbol in executable. */
22b75d0a
DM		 4477 if (h->got.offset != (bfd_vma) -1
4478 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
bb1dd176
QZ		 4479 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
4480 && !local_undefweak)
22b75d0a
DM		 4481 {
4482 asection *sgot;
4483 asection *srela;
4484 Elf_Internal_Rela rela;
4485
4486 /* This symbol has an entry in the GOT. Set it up. */
4487
72fbc6e5
DM		 4488 sgot = htab->elf.sgot;
4489 srela = htab->elf.srelgot;
22b75d0a
DM		 4490 BFD_ASSERT (sgot != NULL && srela != NULL);
4491
4492 rela.r_offset = (sgot->output_section->vma
4493 + sgot->output_offset
4494 + (h->got.offset &~ (bfd_vma) 1));
4495
4496 /* If this is a -Bsymbolic link, and the symbol is defined
4497 locally, we just want to emit a RELATIVE reloc. Likewise if
4498 the symbol was forced to be local because of a version file.
4499 The entry in the global offset table will already have been
4500 initialized in the relocate_section function. */
0e1862bb 4501 if (! bfd_link_pic (info)
d0c9aeb3
DM		 4502 && h->type == STT_GNU_IFUNC
4503 && h->def_regular)
4504 {
4505 asection *plt;
4506
4507 /* We load the GOT entry with the PLT entry. */
4508 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4509 SPARC_ELF_PUT_WORD (htab, output_bfd,
4510 (plt->output_section->vma
4511 + plt->output_offset + h->plt.offset),
4512 htab->elf.sgot->contents
4513 + (h->got.offset & ~(bfd_vma) 1));
4514 return TRUE;
4515 }
0e1862bb 4516 else if (bfd_link_pic (info)
d0c9aeb3 4517 && SYMBOL_REFERENCES_LOCAL (info, h))
22b75d0a
DM		 4518 {
4519 asection *sec = h->root.u.def.section;
d0c9aeb3
DM		 4520 if (h->type == STT_GNU_IFUNC)
4521 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4522 else
4523 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
22b75d0a
DM		 4524 rela.r_addend = (h->root.u.def.value
4525 + sec->output_section->vma
4526 + sec->output_offset);
4527 }
4528 else
4529 {
4530 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4531 rela.r_addend = 0;
4532 }
4533
4534 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4535 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
39817122 4536 sparc_elf_append_rela (output_bfd, srela, &rela);
22b75d0a
DM		 4537 }
4538
4539 if (h->needs_copy)
4540 {
4541 asection *s;
4542 Elf_Internal_Rela rela;
4543
4544 /* This symbols needs a copy reloc. Set it up. */
4545 BFD_ASSERT (h->dynindx != -1);
4546
22b75d0a
DM		 4547 rela.r_offset = (h->root.u.def.value
4548 + h->root.u.def.section->output_section->vma
4549 + h->root.u.def.section->output_offset);
4550 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4551 rela.r_addend = 0;
afbf7e8e 4552 if (h->root.u.def.section == htab->elf.sdynrelro)
5474d94f
AM		 4553 s = htab->elf.sreldynrelro;
4554 else
4555 s = htab->elf.srelbss;
39817122 4556 sparc_elf_append_rela (output_bfd, s, &rela);
22b75d0a
DM		 4557 }
4558
910600e9
RS		 4559 /* Mark some specially defined symbols as absolute. On VxWorks,
4560 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4561 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
d0c9aeb3 4562 if (sym != NULL
9637f6ef 4563 && (h == htab->elf.hdynamic
d0c9aeb3
DM		 4564 || (!htab->is_vxworks
4565 && (h == htab->elf.hgot || h == htab->elf.hplt))))
22b75d0a
DM		 4566 sym->st_shndx = SHN_ABS;
4567
4568 return TRUE;
4569}
4570
4571/* Finish up the dynamic sections. */
4572
22b75d0a 4573static bfd_boolean
39817122
RS		 4574sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4575 bfd *dynobj, asection *sdyn,
4576 asection *splt ATTRIBUTE_UNUSED)
22b75d0a 4577{
910600e9 4578 struct _bfd_sparc_elf_link_hash_table *htab;
39817122
RS		 4579 const struct elf_backend_data *bed;
4580 bfd_byte *dyncon, *dynconend;
4581 size_t dynsize;
4582 int stt_regidx = -1;
4583 bfd_boolean abi_64_p;
22b75d0a 4584
910600e9 4585 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4586 BFD_ASSERT (htab != NULL);
39817122
RS		 4587 bed = get_elf_backend_data (output_bfd);
4588 dynsize = bed->s->sizeof_dyn;
4589 dynconend = sdyn->contents + sdyn->size;
4590 abi_64_p = ABI_64_P (output_bfd);
4591 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
22b75d0a
DM		 4592 {
4593 Elf_Internal_Dyn dyn;
22b75d0a
DM		 4594 bfd_boolean size;
4595
39817122 4596 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
22b75d0a 4597
64f52338 4598 if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
22b75d0a 4599 {
910600e9
RS		 4600 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4601 not to the start of the PLT. */
72fbc6e5 4602 if (htab->elf.sgotplt)
910600e9 4603 {
72fbc6e5
DM		 4604 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4605 + htab->elf.sgotplt->output_offset);
39817122 4606 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
910600e9
RS		 4607 }
4608 }
7a2b07ff
NS		 4609 else if (htab->is_vxworks
4610 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4611 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
39817122
RS		 4612 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4613 {
4614 if (stt_regidx == -1)
4615 {
4616 stt_regidx =
4617 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4618 if (stt_regidx == -1)
4619 return FALSE;
4620 }
4621 dyn.d_un.d_val = stt_regidx++;
4622 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4623 }
910600e9
RS		 4624 else
4625 {
ce558b89
AM		 4626 asection *s;
4627
910600e9
RS		 4628 switch (dyn.d_tag)
4629 {
ce558b89
AM		 4630 case DT_PLTGOT:
4631 s = htab->elf.splt;
4632 size = FALSE;
4633 break;
4634 case DT_PLTRELSZ:
4635 s = htab->elf.srelplt;
4636 size = TRUE;
4637 break;
4638 case DT_JMPREL:
4639 s = htab->elf.srelplt;
4640 size = FALSE;
4641 break;
4642 default:
4643 continue;
910600e9 4644 }
22b75d0a 4645
ce558b89
AM		 4646 if (s == NULL)
4647 dyn.d_un.d_val = 0;
4648 else
22b75d0a 4649 {
ce558b89
AM		 4650 if (!size)
4651 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
22b75d0a 4652 else
ce558b89 4653 dyn.d_un.d_val = s->size;
22b75d0a 4654 }
ce558b89 4655 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
22b75d0a
DM		 4656 }
4657 }
4658 return TRUE;
4659}
4660
910600e9
RS		 4661/* Install the first PLT entry in a VxWorks executable and make sure that
4662 .rela.plt.unloaded relocations have the correct symbol indexes. */
4663
4664static void
4665sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4666{
4667 struct _bfd_sparc_elf_link_hash_table *htab;
4668 Elf_Internal_Rela rela;
4669 bfd_vma got_base;
4670 bfd_byte *loc;
4671
4672 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4673 BFD_ASSERT (htab != NULL);
910600e9
RS		 4674
4675 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4676 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4677 + htab->elf.hgot->root.u.def.section->output_offset
4678 + htab->elf.hgot->root.u.def.value);
4679
4680 /* Install the initial PLT entry. */
4681 bfd_put_32 (output_bfd,
4682 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
72fbc6e5 4683 htab->elf.splt->contents);
910600e9
RS		 4684 bfd_put_32 (output_bfd,
4685 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
72fbc6e5 4686 htab->elf.splt->contents + 4);
910600e9
RS		 4687 bfd_put_32 (output_bfd,
4688 sparc_vxworks_exec_plt0_entry[2],
72fbc6e5 4689 htab->elf.splt->contents + 8);
910600e9
RS		 4690 bfd_put_32 (output_bfd,
4691 sparc_vxworks_exec_plt0_entry[3],
72fbc6e5 4692 htab->elf.splt->contents + 12);
910600e9
RS		 4693 bfd_put_32 (output_bfd,
4694 sparc_vxworks_exec_plt0_entry[4],
72fbc6e5 4695 htab->elf.splt->contents + 16);
910600e9
RS		 4696
4697 loc = htab->srelplt2->contents;
4698
4699 /* Add an unloaded relocation for the initial entry's "sethi". */
72fbc6e5
DM		 4700 rela.r_offset = (htab->elf.splt->output_section->vma
4701 + htab->elf.splt->output_offset);
910600e9
RS		 4702 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4703 rela.r_addend = 8;
4704 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4705 loc += sizeof (Elf32_External_Rela);
4706
4707 /* Likewise the following "or". */
4708 rela.r_offset += 4;
4709 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4710 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4711 loc += sizeof (Elf32_External_Rela);
4712
4713 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4714 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4715 in which symbols were output. */
4716 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4717 {
4718 Elf_Internal_Rela rel;
4719
4720 /* The entry's initial "sethi" (against _G_O_T_). */
4721 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4722 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4723 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4724 loc += sizeof (Elf32_External_Rela);
4725
4726 /* The following "or" (also against _G_O_T_). */
4727 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4728 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4729 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4730 loc += sizeof (Elf32_External_Rela);
4731
4732 /* The .got.plt entry (against _P_L_T_). */
4733 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4734 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4735 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4736 loc += sizeof (Elf32_External_Rela);
4737 }
4738}
4739
4740/* Install the first PLT entry in a VxWorks shared object. */
4741
4742static void
4743sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4744{
4745 struct _bfd_sparc_elf_link_hash_table *htab;
4746 unsigned int i;
4747
4748 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4749 BFD_ASSERT (htab != NULL);
4750
910600e9
RS		 4751 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4752 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
72fbc6e5 4753 htab->elf.splt->contents + i * 4);
910600e9
RS		 4754}
4755
d0c9aeb3
DM		 4756/* Finish up local dynamic symbol handling. We set the contents of
4757 various dynamic sections here. */
4758
4759static bfd_boolean
4760finish_local_dynamic_symbol (void **slot, void *inf)
4761{
4762 struct elf_link_hash_entry *h
4763 = (struct elf_link_hash_entry *) *slot;
4764 struct bfd_link_info *info
68ffbac6 4765 = (struct bfd_link_info *) inf;
d0c9aeb3
DM		 4766
4767 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4768 h, NULL);
4769}
4770
bb1dd176
QZ		 4771/* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4772 here since undefined weak symbol may not be dynamic and may not be
4773 called for _bfd_sparc_elf_finish_dynamic_symbol. */
4774
4775static bfd_boolean
4776pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
07d6d2b8 4777 void *inf)
bb1dd176
QZ		 4778{
4779 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4780 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4781
4782 if (h->root.type != bfd_link_hash_undefweak
4783 || h->dynindx != -1)
4784 return TRUE;
4785
4786 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
07d6d2b8 4787 h, NULL);
bb1dd176
QZ		 4788}
4789
22b75d0a
DM		 4790bfd_boolean
4791_bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4792{
4793 bfd *dynobj;
4794 asection *sdyn;
4795 struct _bfd_sparc_elf_link_hash_table *htab;
4796
4797 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4798 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 4799 dynobj = htab->elf.dynobj;
4800
3d4d4302 4801 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
22b75d0a
DM		 4802
4803 if (elf_hash_table (info)->dynamic_sections_created)
4804 {
4805 asection *splt;
22b75d0a 4806
3d4d4302 4807 splt = htab->elf.splt;
22b75d0a
DM		 4808 BFD_ASSERT (splt != NULL && sdyn != NULL);
4809
39817122
RS		 4810 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4811 return FALSE;
22b75d0a
DM		 4812
4813 /* Initialize the contents of the .plt section. */
4814 if (splt->size > 0)
4815 {
910600e9
RS		 4816 if (htab->is_vxworks)
4817 {
0e1862bb 4818 if (bfd_link_pic (info))
910600e9
RS		 4819 sparc_vxworks_finish_shared_plt (output_bfd, info);
4820 else
4821 sparc_vxworks_finish_exec_plt (output_bfd, info);
4822 }
22b75d0a
DM		 4823 else
4824 {
910600e9
RS		 4825 memset (splt->contents, 0, htab->plt_header_size);
4826 if (!ABI_64_P (output_bfd))
4827 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4828 splt->contents + splt->size - 4);
22b75d0a
DM		 4829 }
4830 }
4831
387f8054 4832 if (elf_section_data (splt->output_section) != NULL)
07d6d2b8
AM		 4833 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4834 = ((htab->is_vxworks || !ABI_64_P (output_bfd))
4835 ? 0 : htab->plt_entry_size);
22b75d0a
DM		 4836 }
4837
4838 /* Set the first entry in the global offset table to the address of
4839 the dynamic section. */
72fbc6e5 4840 if (htab->elf.sgot && htab->elf.sgot->size > 0)
22b75d0a
DM		 4841 {
4842 bfd_vma val = (sdyn ?
4843 sdyn->output_section->vma + sdyn->output_offset :
4844 0);
4845
72fbc6e5 4846 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
22b75d0a
DM		 4847 }
4848
72fbc6e5
DM		 4849 if (htab->elf.sgot)
4850 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
22b75d0a
DM		 4851 SPARC_ELF_WORD_BYTES (htab);
4852
d0c9aeb3
DM		 4853 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4854 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4855
bb1dd176
QZ		 4856 /* Fill PLT entries for undefined weak symbols in PIE. */
4857 if (bfd_link_pie (info))
4858 bfd_hash_traverse (&info->hash->table,
07d6d2b8
AM		 4859 pie_finish_undefweak_symbol,
4860 info);
22b75d0a
DM		 4861 return TRUE;
4862}
4863
4864\f
4865/* Set the right machine number for a SPARC ELF file. */
4866
4867bfd_boolean
4868_bfd_sparc_elf_object_p (bfd *abfd)
4869{
4f26fb3a
JM		 4870 obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
4871 obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
4872 obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
4873
4874 unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
4875 unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
07d6d2b8
AM		 4876 | ELF_SPARC_HWCAP_VIS3
4877 | ELF_SPARC_HWCAP_HPC);
4f26fb3a 4878 unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
07d6d2b8
AM		 4879 | ELF_SPARC_HWCAP_DES
4880 | ELF_SPARC_HWCAP_KASUMI
4881 | ELF_SPARC_HWCAP_CAMELLIA
4882 | ELF_SPARC_HWCAP_MD5
4883 | ELF_SPARC_HWCAP_SHA1
4884 | ELF_SPARC_HWCAP_SHA256
4885 | ELF_SPARC_HWCAP_SHA512
4886 | ELF_SPARC_HWCAP_MPMUL
4887 | ELF_SPARC_HWCAP_MONT
4888 | ELF_SPARC_HWCAP_CRC32C
4889 | ELF_SPARC_HWCAP_CBCOND
4890 | ELF_SPARC_HWCAP_PAUSE);
4f26fb3a 4891 unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
07d6d2b8 4892 | ELF_SPARC_HWCAP_IMA);
4f26fb3a 4893 unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
07d6d2b8
AM		 4894 | ELF_SPARC_HWCAP2_MWAIT
4895 | ELF_SPARC_HWCAP2_XMPMUL
4896 | ELF_SPARC_HWCAP2_XMONT);
64517994 4897 unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6
07d6d2b8
AM		 4898 | ELF_SPARC_HWCAP2_ONADDSUB
4899 | ELF_SPARC_HWCAP2_ONMUL
4900 | ELF_SPARC_HWCAP2_ONDIV
4901 | ELF_SPARC_HWCAP2_DICTUNP
4902 | ELF_SPARC_HWCAP2_FPCMPSHL
4903 | ELF_SPARC_HWCAP2_RLE
4904 | ELF_SPARC_HWCAP2_SHA3);
4f26fb3a 4905
22b75d0a
DM		 4906 if (ABI_64_P (abfd))
4907 {
4908 unsigned long mach = bfd_mach_sparc_v9;
4909
64517994 4910 if (hwcaps2->i & m8_hwcaps2_mask)
07d6d2b8 4911 mach = bfd_mach_sparc_v9m8;
64517994 4912 else if (hwcaps2->i & v9m_hwcaps2_mask)
07d6d2b8 4913 mach = bfd_mach_sparc_v9m;
4f26fb3a 4914 else if (hwcaps->i & v9v_hwcaps_mask)
07d6d2b8 4915 mach = bfd_mach_sparc_v9v;
4f26fb3a 4916 else if (hwcaps->i & v9e_hwcaps_mask)
07d6d2b8 4917 mach = bfd_mach_sparc_v9e;
4f26fb3a 4918 else if (hwcaps->i & v9d_hwcaps_mask)
07d6d2b8 4919 mach = bfd_mach_sparc_v9d;
4f26fb3a 4920 else if (hwcaps->i & v9c_hwcaps_mask)
07d6d2b8 4921 mach = bfd_mach_sparc_v9c;
4f26fb3a 4922 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
22b75d0a
DM		 4923 mach = bfd_mach_sparc_v9b;
4924 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4925 mach = bfd_mach_sparc_v9a;
4926 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4927 }
4928 else
4929 {
4930 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4931 {
07d6d2b8
AM		 4932 if (hwcaps2->i & m8_hwcaps2_mask)
4933 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4934 bfd_mach_sparc_v8plusm8);
4935 else if (hwcaps2->i & v9m_hwcaps2_mask)
4f26fb3a
JM		 4936 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4937 bfd_mach_sparc_v8plusm);
07d6d2b8
AM		 4938 else if (hwcaps->i & v9v_hwcaps_mask)
4939 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a 4940 bfd_mach_sparc_v8plusv);
07d6d2b8
AM		 4941 else if (hwcaps->i & v9e_hwcaps_mask)
4942 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a 4943 bfd_mach_sparc_v8pluse);
07d6d2b8
AM		 4944 else if (hwcaps->i & v9d_hwcaps_mask)
4945 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a 4946 bfd_mach_sparc_v8plusd);
07d6d2b8
AM		 4947 else if (hwcaps->i & v9c_hwcaps_mask)
4948 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a
JM		 4949 bfd_mach_sparc_v8plusc);
4950 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
22b75d0a
DM		 4951 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4952 bfd_mach_sparc_v8plusb);
4953 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4954 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4955 bfd_mach_sparc_v8plusa);
4956 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4957 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4958 bfd_mach_sparc_v8plus);
4959 else
4960 return FALSE;
4961 }
4962 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4963 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4964 bfd_mach_sparc_sparclite_le);
4965 else
4966 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4967 }
4968}
4969
4970/* Return address for Ith PLT stub in section PLT, for relocation REL
4971 or (bfd_vma) -1 if it should not be included. */
4972
4973bfd_vma
4974_bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
4975{
4976 if (ABI_64_P (plt->owner))
4977 {
4978 bfd_vma j;
4979
4980 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
4981 if (i < PLT64_LARGE_THRESHOLD)
4982 return plt->vma + i * PLT64_ENTRY_SIZE;
4983
4984 j = (i - PLT64_LARGE_THRESHOLD) % 160;
4985 i -= j;
4986 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
4987 }
4988 else
4989 return rel->address;
4990}
9e8c70f9
DM		 4991
4992/* Merge backend specific data from an object file to the output
4993 object file when linking. */
4994
4995bfd_boolean
50e03d47 4996_bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
9e8c70f9 4997{
50e03d47 4998 bfd *obfd = info->output_bfd;
9e8c70f9
DM		 4999 obj_attribute *in_attr, *in_attrs;
5000 obj_attribute *out_attr, *out_attrs;
5001
5002 if (!elf_known_obj_attributes_proc (obfd)[0].i)
5003 {
5004 /* This is the first object. Copy the attributes. */
5005 _bfd_elf_copy_obj_attributes (ibfd, obfd);
5006
5007 /* Use the Tag_null value to indicate the attributes have been
5008 initialized. */
5009 elf_known_obj_attributes_proc (obfd)[0].i = 1;
5010
5011 return TRUE;
5012 }
5013
5014 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
5015 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
5016
5017 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
5018 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
1b786873 5019
3d68f91c
JM		 5020 out_attr->i |= in_attr->i;
5021 out_attr->type = 1;
9e8c70f9 5022
3d68f91c
JM		 5023 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
5024 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
1b786873 5025
9e8c70f9 5026 out_attr->i |= in_attr->i;
209be8d2 5027 out_attr->type = 1;
9e8c70f9
DM		 5028
5029 /* Merge Tag_compatibility attributes and any common GNU ones. */
50e03d47 5030 _bfd_elf_merge_object_attributes (ibfd, info);
9e8c70f9
DM		 5031
5032 return TRUE;
5033}
GDB Binutils - Deliverables
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