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PR 26484-26488, 26490 UBSAN &h->elf null pointer
[deliverable/binutils-gdb.git] / bfd / elfxx-sparc.c
CommitLineData
22b75d0a 1/* SPARC-specific support for ELF
b3adc24a 2 Copyright (C) 2005-2020 Free Software Foundation, Inc.
22b75d0a
DM		 3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
cd123cb7 8 the Free Software Foundation; either version 3 of the License, or
22b75d0a
DM		 9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
cd123cb7
NC		 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
22b75d0a
DM		 21
22/* This file handles functionality common to the different SPARC ABI's. */
23
22b75d0a 24#include "sysdep.h"
3db64b00 25#include "bfd.h"
22b75d0a
DM		 26#include "bfdlink.h"
27#include "libbfd.h"
910600e9 28#include "libiberty.h"
22b75d0a
DM		 29#include "elf-bfd.h"
30#include "elf/sparc.h"
31#include "opcode/sparc.h"
32#include "elfxx-sparc.h"
910600e9 33#include "elf-vxworks.h"
d0c9aeb3
DM		 34#include "objalloc.h"
35#include "hashtab.h"
22b75d0a
DM		 36
37/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
38#define MINUS_ONE (~ (bfd_vma) 0)
39
40#define ABI_64_P(abfd) \
41 (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
42
43/* The relocation "howto" table. */
44
45/* Utility for performing the standard initial work of an instruction
46 relocation.
47 *PRELOCATION will contain the relocated item.
48 *PINSN will contain the instruction from the input stream.
49 If the result is `bfd_reloc_other' the caller can continue with
50 performing the relocation. Otherwise it must stop and return the
51 value to its caller. */
52
53static bfd_reloc_status_type
54init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 55 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 56 bfd_vma *prelocation, bfd_vma *pinsn)
57{
58 bfd_vma relocation;
59 reloc_howto_type *howto = reloc_entry->howto;
60
61 if (output_bfd != (bfd *) NULL
62 && (symbol->flags & BSF_SECTION_SYM) == 0
63 && (! howto->partial_inplace
64 || reloc_entry->addend == 0))
65 {
66 reloc_entry->address += input_section->output_offset;
67 return bfd_reloc_ok;
68 }
69
70 /* This works because partial_inplace is FALSE. */
71 if (output_bfd != NULL)
72 return bfd_reloc_continue;
73
74 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
75 return bfd_reloc_outofrange;
76
77 relocation = (symbol->value
78 + symbol->section->output_section->vma
79 + symbol->section->output_offset);
80 relocation += reloc_entry->addend;
81 if (howto->pc_relative)
82 {
83 relocation -= (input_section->output_section->vma
84 + input_section->output_offset);
85 relocation -= reloc_entry->address;
86 }
87
88 *prelocation = relocation;
89 *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
90 return bfd_reloc_other;
91}
92
93/* For unsupported relocs. */
94
95static bfd_reloc_status_type
96sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
97 arelent *reloc_entry ATTRIBUTE_UNUSED,
98 asymbol *symbol ATTRIBUTE_UNUSED,
2c3fc389 99 void * data ATTRIBUTE_UNUSED,
22b75d0a
DM		 100 asection *input_section ATTRIBUTE_UNUSED,
101 bfd *output_bfd ATTRIBUTE_UNUSED,
102 char **error_message ATTRIBUTE_UNUSED)
103{
104 return bfd_reloc_notsupported;
105}
106
107/* Handle the WDISP16 reloc. */
108
109static bfd_reloc_status_type
110sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 111 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 112 char **error_message ATTRIBUTE_UNUSED)
113{
114 bfd_vma relocation;
115 bfd_vma insn;
116 bfd_reloc_status_type status;
117
118 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
119 input_section, output_bfd, &relocation, &insn);
120 if (status != bfd_reloc_other)
121 return status;
122
123 insn &= ~ (bfd_vma) 0x303fff;
124 insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
125 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
126
127 if ((bfd_signed_vma) relocation < - 0x40000
128 || (bfd_signed_vma) relocation > 0x3ffff)
129 return bfd_reloc_overflow;
130 else
131 return bfd_reloc_ok;
132}
133
2615994e
DM		 134/* Handle the WDISP10 reloc. */
135
136static bfd_reloc_status_type
137sparc_elf_wdisp10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 138 void * data, asection *input_section, bfd *output_bfd,
2615994e
DM		 139 char **error_message ATTRIBUTE_UNUSED)
140{
141 bfd_vma relocation;
142 bfd_vma insn;
143 bfd_reloc_status_type status;
144
145 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
146 input_section, output_bfd, &relocation, &insn);
147 if (status != bfd_reloc_other)
148 return status;
149
150 insn &= ~ (bfd_vma) 0x181fe0;
151 insn |= (((relocation >> 2) & 0x300) << 11)
152 | (((relocation >> 2) & 0xff) << 5);
153 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
154
155 if ((bfd_signed_vma) relocation < - 0x1000
156 || (bfd_signed_vma) relocation > 0xfff)
157 return bfd_reloc_overflow;
158 else
159 return bfd_reloc_ok;
160}
161
22b75d0a
DM		 162/* Handle the HIX22 reloc. */
163
164static bfd_reloc_status_type
165sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 166 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 167 char **error_message ATTRIBUTE_UNUSED)
168{
169 bfd_vma relocation;
170 bfd_vma insn;
171 bfd_reloc_status_type status;
172
173 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
174 input_section, output_bfd, &relocation, &insn);
175 if (status != bfd_reloc_other)
176 return status;
177
178 relocation ^= MINUS_ONE;
179 insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
180 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
181
182 if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
183 return bfd_reloc_overflow;
184 else
185 return bfd_reloc_ok;
186}
187
188/* Handle the LOX10 reloc. */
189
190static bfd_reloc_status_type
191sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
2c3fc389 192 void * data, asection *input_section, bfd *output_bfd,
22b75d0a
DM		 193 char **error_message ATTRIBUTE_UNUSED)
194{
195 bfd_vma relocation;
196 bfd_vma insn;
197 bfd_reloc_status_type status;
198
199 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
200 input_section, output_bfd, &relocation, &insn);
201 if (status != bfd_reloc_other)
202 return status;
203
204 insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
205 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
206
207 return bfd_reloc_ok;
208}
209
210static reloc_howto_type _bfd_sparc_elf_howto_table[] =
211{
07d6d2b8
AM		 212 HOWTO(R_SPARC_NONE, 0,3, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
213 HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
214 HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
215 HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
216 HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
217 HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
218 HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
22b75d0a
DM		 219 HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
220 HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
07d6d2b8
AM		 221 HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
222 HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
223 HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
224 HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
225 HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
226 HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
227 HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
228 HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
229 HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
230 HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
231 HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
22b75d0a
DM		 232 HOWTO(R_SPARC_GLOB_DAT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",FALSE,0,0x00000000,TRUE),
233 HOWTO(R_SPARC_JMP_SLOT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",FALSE,0,0x00000000,TRUE),
234 HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
07d6d2b8
AM		 235 HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
236 HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
237 HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
238 HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
239 HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
240 HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
241 HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
242 HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
243 HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
244 HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE),
245 HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE),
246 HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE),
247 HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE),
248 HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE),
249 HOWTO(R_SPARC_PC_HH22, 42,2,22,TRUE, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", FALSE,0,0x003fffff,TRUE),
250 HOWTO(R_SPARC_PC_HM10, 32,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", FALSE,0,0x000003ff,TRUE),
251 HOWTO(R_SPARC_PC_LM22, 10,2,22,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", FALSE,0,0x003fffff,TRUE),
22b75d0a
DM		 252 HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
253 HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
254 HOWTO(R_SPARC_UNUSED_42, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",FALSE,0,0x00000000,TRUE),
07d6d2b8
AM		 255 HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
256 HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
257 HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
258 HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE),
259 HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE),
260 HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE),
261 HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE),
262 HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE),
263 HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE),
264 HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE),
22b75d0a 265 HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE),
07d6d2b8
AM		 266 HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE),
267 HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
22b75d0a
DM		 268 HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE),
269 HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE),
270 HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",FALSE,0,0x00000000,TRUE),
271 HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE),
272 HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE),
273 HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE),
274 HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",FALSE,0,0x00000000,TRUE),
275 HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE),
276 HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE),
277 HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE),
278 HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",FALSE,0,0x00000000,TRUE),
279 HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE),
280 HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE),
281 HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",FALSE,0,0x00000000,TRUE),
282 HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",FALSE,0,0x00000000,TRUE),
283 HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",FALSE,0,0x00000000,TRUE),
284 HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE),
285 HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE),
286 HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",FALSE,0,0x00000000,TRUE),
287 HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",FALSE,0,0x00000000,TRUE),
288 HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE),
289 HOWTO(R_SPARC_TLS_DTPOFF64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",FALSE,0,MINUS_ONE,TRUE),
290 HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE),
739f7f82
DM		 291 HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE),
292 HOWTO(R_SPARC_GOTDATA_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",FALSE,0,0x003fffff, FALSE),
293 HOWTO(R_SPARC_GOTDATA_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",FALSE,0,0x000003ff, FALSE),
294 HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",FALSE,0,0x003fffff, FALSE),
07d6d2b8 295 HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",FALSE,0,0x000003ff, FALSE),
739f7f82 296 HOWTO(R_SPARC_GOTDATA_OP,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOTDATA_OP",FALSE,0,0x00000000,TRUE),
2615994e
DM		 297 HOWTO(R_SPARC_H34,12,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc,"R_SPARC_H34",FALSE,0,0x003fffff,FALSE),
298 HOWTO(R_SPARC_SIZE32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE32",FALSE,0,0xffffffff,TRUE),
299 HOWTO(R_SPARC_SIZE64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE64",FALSE,0,MINUS_ONE, TRUE),
300 HOWTO(R_SPARC_WDISP10,2,2,10,TRUE, 0,complain_overflow_signed,sparc_elf_wdisp10_reloc,"R_SPARC_WDISP10",FALSE,0,0x00000000,TRUE),
22b75d0a 301};
d0c9aeb3
DM		 302static reloc_howto_type sparc_jmp_irel_howto =
303 HOWTO(R_SPARC_JMP_IREL, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_IREL",FALSE,0,0x00000000,TRUE);
304static reloc_howto_type sparc_irelative_howto =
305 HOWTO(R_SPARC_IRELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_IRELATIVE",FALSE,0,0x00000000,TRUE);
22b75d0a
DM		 306static reloc_howto_type sparc_vtinherit_howto =
307 HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE);
308static reloc_howto_type sparc_vtentry_howto =
309 HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", FALSE,0,0, FALSE);
310static reloc_howto_type sparc_rev32_howto =
311 HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE);
312
22b75d0a 313reloc_howto_type *
f3185997 314_bfd_sparc_elf_reloc_type_lookup (bfd *abfd,
22b75d0a
DM		 315 bfd_reloc_code_real_type code)
316{
679b7c76
DM		 317 /* We explicitly handle each relocation type in the switch
318 instead of using a lookup table for efficiency. */
22b75d0a
DM		 319 switch (code)
320 {
679b7c76
DM		 321 case BFD_RELOC_NONE:
322 return &_bfd_sparc_elf_howto_table[R_SPARC_NONE];
323
324 case BFD_RELOC_8:
325 return &_bfd_sparc_elf_howto_table[R_SPARC_8];
326
327 case BFD_RELOC_16:
328 return &_bfd_sparc_elf_howto_table[R_SPARC_16];
329
330 case BFD_RELOC_32:
331 return &_bfd_sparc_elf_howto_table[R_SPARC_32];
332
333 case BFD_RELOC_8_PCREL:
334 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP8];
335
336 case BFD_RELOC_16_PCREL:
337 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP16];
338
339 case BFD_RELOC_32_PCREL:
340 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP32];
341
342 case BFD_RELOC_32_PCREL_S2:
343 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP30];
344
345 case BFD_RELOC_SPARC_WDISP22:
346 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP22];
347
348 case BFD_RELOC_HI22:
349 return &_bfd_sparc_elf_howto_table[R_SPARC_HI22];
350
351 case BFD_RELOC_SPARC22:
352 return &_bfd_sparc_elf_howto_table[R_SPARC_22];
353
354 case BFD_RELOC_SPARC13:
355 return &_bfd_sparc_elf_howto_table[R_SPARC_13];
356
357 case BFD_RELOC_LO10:
358 return &_bfd_sparc_elf_howto_table[R_SPARC_LO10];
359
360 case BFD_RELOC_SPARC_GOT10:
361 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT10];
362
363 case BFD_RELOC_SPARC_GOT13:
364 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT13];
365
366 case BFD_RELOC_SPARC_GOT22:
367 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT22];
368
369 case BFD_RELOC_SPARC_PC10:
370 return &_bfd_sparc_elf_howto_table[R_SPARC_PC10];
371
372 case BFD_RELOC_SPARC_PC22:
373 return &_bfd_sparc_elf_howto_table[R_SPARC_PC22];
374
375 case BFD_RELOC_SPARC_WPLT30:
376 return &_bfd_sparc_elf_howto_table[R_SPARC_WPLT30];
377
378 case BFD_RELOC_SPARC_COPY:
379 return &_bfd_sparc_elf_howto_table[R_SPARC_COPY];
380
381 case BFD_RELOC_SPARC_GLOB_DAT:
382 return &_bfd_sparc_elf_howto_table[R_SPARC_GLOB_DAT];
383
384 case BFD_RELOC_SPARC_JMP_SLOT:
385 return &_bfd_sparc_elf_howto_table[R_SPARC_JMP_SLOT];
386
387 case BFD_RELOC_SPARC_RELATIVE:
388 return &_bfd_sparc_elf_howto_table[R_SPARC_RELATIVE];
389
390 case BFD_RELOC_SPARC_UA32:
391 return &_bfd_sparc_elf_howto_table[R_SPARC_UA32];
392
393 case BFD_RELOC_SPARC_PLT32:
394 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT32];
395
396 case BFD_RELOC_SPARC_10:
397 return &_bfd_sparc_elf_howto_table[R_SPARC_10];
398
399 case BFD_RELOC_SPARC_11:
400 return &_bfd_sparc_elf_howto_table[R_SPARC_11];
401
402 case BFD_RELOC_SPARC_64:
403 return &_bfd_sparc_elf_howto_table[R_SPARC_64];
404
405 case BFD_RELOC_SPARC_OLO10:
406 return &_bfd_sparc_elf_howto_table[R_SPARC_OLO10];
407
408 case BFD_RELOC_SPARC_HH22:
409 return &_bfd_sparc_elf_howto_table[R_SPARC_HH22];
410
411 case BFD_RELOC_SPARC_HM10:
412 return &_bfd_sparc_elf_howto_table[R_SPARC_HM10];
413
414 case BFD_RELOC_SPARC_LM22:
415 return &_bfd_sparc_elf_howto_table[R_SPARC_LM22];
416
417 case BFD_RELOC_SPARC_PC_HH22:
418 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HH22];
419
420 case BFD_RELOC_SPARC_PC_HM10:
421 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HM10];
422
423 case BFD_RELOC_SPARC_PC_LM22:
424 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_LM22];
425
426 case BFD_RELOC_SPARC_WDISP16:
427 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP16];
428
429 case BFD_RELOC_SPARC_WDISP19:
430 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP19];
431
432 case BFD_RELOC_SPARC_7:
433 return &_bfd_sparc_elf_howto_table[R_SPARC_7];
434
435 case BFD_RELOC_SPARC_5:
436 return &_bfd_sparc_elf_howto_table[R_SPARC_5];
437
438 case BFD_RELOC_SPARC_6:
439 return &_bfd_sparc_elf_howto_table[R_SPARC_6];
440
441 case BFD_RELOC_SPARC_DISP64:
442 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP64];
443
444 case BFD_RELOC_SPARC_PLT64:
445 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT64];
446
447 case BFD_RELOC_SPARC_HIX22:
448 return &_bfd_sparc_elf_howto_table[R_SPARC_HIX22];
449
450 case BFD_RELOC_SPARC_LOX10:
451 return &_bfd_sparc_elf_howto_table[R_SPARC_LOX10];
452
453 case BFD_RELOC_SPARC_H44:
454 return &_bfd_sparc_elf_howto_table[R_SPARC_H44];
455
456 case BFD_RELOC_SPARC_M44:
457 return &_bfd_sparc_elf_howto_table[R_SPARC_M44];
458
459 case BFD_RELOC_SPARC_L44:
460 return &_bfd_sparc_elf_howto_table[R_SPARC_L44];
461
462 case BFD_RELOC_SPARC_REGISTER:
463 return &_bfd_sparc_elf_howto_table[R_SPARC_REGISTER];
464
465 case BFD_RELOC_SPARC_UA64:
466 return &_bfd_sparc_elf_howto_table[R_SPARC_UA64];
467
468 case BFD_RELOC_SPARC_UA16:
469 return &_bfd_sparc_elf_howto_table[R_SPARC_UA16];
470
471 case BFD_RELOC_SPARC_TLS_GD_HI22:
472 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_HI22];
473
474 case BFD_RELOC_SPARC_TLS_GD_LO10:
475 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_LO10];
476
477 case BFD_RELOC_SPARC_TLS_GD_ADD:
478 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_ADD];
479
480 case BFD_RELOC_SPARC_TLS_GD_CALL:
481 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_CALL];
482
483 case BFD_RELOC_SPARC_TLS_LDM_HI22:
484 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_HI22];
485
486 case BFD_RELOC_SPARC_TLS_LDM_LO10:
487 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_LO10];
488
489 case BFD_RELOC_SPARC_TLS_LDM_ADD:
490 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_ADD];
491
492 case BFD_RELOC_SPARC_TLS_LDM_CALL:
493 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_CALL];
494
495 case BFD_RELOC_SPARC_TLS_LDO_HIX22:
496 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_HIX22];
497
498 case BFD_RELOC_SPARC_TLS_LDO_LOX10:
499 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_LOX10];
500
501 case BFD_RELOC_SPARC_TLS_LDO_ADD:
502 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_ADD];
503
504 case BFD_RELOC_SPARC_TLS_IE_HI22:
505 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_HI22];
506
507 case BFD_RELOC_SPARC_TLS_IE_LO10:
508 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LO10];
509
510 case BFD_RELOC_SPARC_TLS_IE_LD:
511 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LD];
512
513 case BFD_RELOC_SPARC_TLS_IE_LDX:
514 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LDX];
515
516 case BFD_RELOC_SPARC_TLS_IE_ADD:
517 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_ADD];
518
519 case BFD_RELOC_SPARC_TLS_LE_HIX22:
520 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_HIX22];
521
522 case BFD_RELOC_SPARC_TLS_LE_LOX10:
523 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_LOX10];
524
525 case BFD_RELOC_SPARC_TLS_DTPMOD32:
526 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD32];
527
528 case BFD_RELOC_SPARC_TLS_DTPMOD64:
529 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD64];
530
531 case BFD_RELOC_SPARC_TLS_DTPOFF32:
532 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF32];
533
534 case BFD_RELOC_SPARC_TLS_DTPOFF64:
535 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF64];
536
537 case BFD_RELOC_SPARC_TLS_TPOFF32:
538 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF32];
539
540 case BFD_RELOC_SPARC_TLS_TPOFF64:
541 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF64];
542
543 case BFD_RELOC_SPARC_GOTDATA_HIX22:
544 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_HIX22];
545
546 case BFD_RELOC_SPARC_GOTDATA_LOX10:
547 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_LOX10];
548
549 case BFD_RELOC_SPARC_GOTDATA_OP_HIX22:
550 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_HIX22];
551
552 case BFD_RELOC_SPARC_GOTDATA_OP_LOX10:
553 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_LOX10];
554
555 case BFD_RELOC_SPARC_GOTDATA_OP:
556 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP];
557
2615994e
DM		 558 case BFD_RELOC_SPARC_H34:
559 return &_bfd_sparc_elf_howto_table[R_SPARC_H34];
560
561 case BFD_RELOC_SPARC_SIZE32:
562 return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE32];
563
564 case BFD_RELOC_SPARC_SIZE64:
565 return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE64];
566
567 case BFD_RELOC_SPARC_WDISP10:
568 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP10];
569
d0c9aeb3
DM		 570 case BFD_RELOC_SPARC_JMP_IREL:
571 return &sparc_jmp_irel_howto;
572
573 case BFD_RELOC_SPARC_IRELATIVE:
574 return &sparc_irelative_howto;
575
22b75d0a
DM		 576 case BFD_RELOC_VTABLE_INHERIT:
577 return &sparc_vtinherit_howto;
578
579 case BFD_RELOC_VTABLE_ENTRY:
580 return &sparc_vtentry_howto;
581
582 case BFD_RELOC_SPARC_REV32:
583 return &sparc_rev32_howto;
584
585 default:
679b7c76 586 break;
22b75d0a 587 }
f3185997 588 /* xgettext:c-format */
e8f5af78 589 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, (int) code);
f3185997
NC		 590 bfd_set_error (bfd_error_bad_value);
591 return NULL;
22b75d0a
DM		 592}
593
157090f7
AM		 594reloc_howto_type *
595_bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
596 const char *r_name)
597{
598 unsigned int i;
599
f3185997 600 for (i = 0; i < ARRAY_SIZE (_bfd_sparc_elf_howto_table); i++)
157090f7
AM		 601 if (_bfd_sparc_elf_howto_table[i].name != NULL
602 && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
603 return &_bfd_sparc_elf_howto_table[i];
604
605 if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
606 return &sparc_vtinherit_howto;
607 if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
608 return &sparc_vtentry_howto;
609 if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
610 return &sparc_rev32_howto;
611
612 return NULL;
613}
614
22b75d0a 615reloc_howto_type *
f3185997
NC		 616_bfd_sparc_elf_info_to_howto_ptr (bfd *abfd ATTRIBUTE_UNUSED,
617 unsigned int r_type)
22b75d0a
DM		 618{
619 switch (r_type)
620 {
d0c9aeb3
DM		 621 case R_SPARC_JMP_IREL:
622 return &sparc_jmp_irel_howto;
623
624 case R_SPARC_IRELATIVE:
625 return &sparc_irelative_howto;
626
22b75d0a
DM		 627 case R_SPARC_GNU_VTINHERIT:
628 return &sparc_vtinherit_howto;
629
630 case R_SPARC_GNU_VTENTRY:
631 return &sparc_vtentry_howto;
632
633 case R_SPARC_REV32:
634 return &sparc_rev32_howto;
635
636 default:
d0fb9a8d
JJ		 637 if (r_type >= (unsigned int) R_SPARC_max_std)
638 {
0aa13fee
AM		 639 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
640 abfd, r_type);
f3185997
NC		 641 bfd_set_error (bfd_error_bad_value);
642 return NULL;
d0fb9a8d 643 }
22b75d0a
DM		 644 return &_bfd_sparc_elf_howto_table[r_type];
645 }
646}
647
648/* Both 32-bit and 64-bit sparc encode this in an identical manner,
649 so just take advantage of that. */
650#define SPARC_ELF_R_TYPE(r_info) \
651 ((r_info) & 0xff)
652
f3185997 653bfd_boolean
0aa13fee 654_bfd_sparc_elf_info_to_howto (bfd *abfd, arelent *cache_ptr,
22b75d0a
DM		 655 Elf_Internal_Rela *dst)
656{
657 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
658
f3185997
NC		 659 if ((cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (abfd, r_type)) == NULL)
660 {
f3185997
NC		 661 bfd_set_error (bfd_error_bad_value);
662 return FALSE;
663 }
664 return TRUE;
22b75d0a
DM		 665}
666\f
667
668/* The nop opcode we use. */
669#define SPARC_NOP 0x01000000
670
671#define SPARC_INSN_BYTES 4
672
bb1dd176
QZ		 673/* Is an undefined weak symbol resolved to 0 ?
674 Reference to an undefined weak symbol is resolved to 0 when
675 building an executable if it isn't dynamic and
676 1. Has non-GOT/non-PLT relocations in text section.
677 Or
678 2. Has no GOT/PLT relocation. */
07d6d2b8
AM		 679#define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
680 ((EH)->elf.root.type == bfd_link_hash_undefweak \
681 && bfd_link_executable (INFO) \
682 && (_bfd_sparc_elf_hash_table (INFO)->interp == NULL \
a8735c82 683 || !(INFO)->dynamic_undefined_weak \
07d6d2b8 684 || (EH)->has_non_got_reloc \
a8735c82 685 || !(EH)->has_got_reloc))
bb1dd176 686
22b75d0a
DM		 687/* SPARC ELF linker hash entry. */
688
689struct _bfd_sparc_elf_link_hash_entry
690{
691 struct elf_link_hash_entry elf;
692
22b75d0a
DM		 693#define GOT_UNKNOWN 0
694#define GOT_NORMAL 1
695#define GOT_TLS_GD 2
696#define GOT_TLS_IE 3
697 unsigned char tls_type;
bb1dd176 698
f8745e1c 699 /* Symbol has GOT or PLT relocations. */
bb1dd176
QZ		 700 unsigned int has_got_reloc : 1;
701
f8745e1c
EB		 702 /* Symbol has old-style, non-relaxable GOT relocations. */
703 unsigned int has_old_style_got_reloc : 1;
704
bb1dd176
QZ		 705 /* Symbol has non-GOT/non-PLT relocations in text sections. */
706 unsigned int has_non_got_reloc : 1;
707
22b75d0a
DM		 708};
709
710#define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
711
712struct _bfd_sparc_elf_obj_tdata
713{
714 struct elf_obj_tdata root;
715
716 /* tls_type for each local got entry. */
717 char *local_got_tls_type;
718
719 /* TRUE if TLS GD relocs has been seen for this object. */
720 bfd_boolean has_tlsgd;
721};
722
723#define _bfd_sparc_elf_tdata(abfd) \
724 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
725
726#define _bfd_sparc_elf_local_got_tls_type(abfd) \
727 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
728
0ffa91dd
NC		 729#define is_sparc_elf(bfd) \
730 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
731 && elf_tdata (bfd) != NULL \
4dfe6ac6 732 && elf_object_id (bfd) == SPARC_ELF_DATA)
0ffa91dd 733
22b75d0a
DM		 734bfd_boolean
735_bfd_sparc_elf_mkobject (bfd *abfd)
736{
0ffa91dd 737 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
4dfe6ac6 738 SPARC_ELF_DATA);
22b75d0a
DM		 739}
740
741static void
91d6fa6a 742sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 743{
91d6fa6a 744 bfd_put_32 (abfd, val, ptr);
22b75d0a
DM		 745}
746
747static void
91d6fa6a 748sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 749{
91d6fa6a 750 bfd_put_64 (abfd, val, ptr);
22b75d0a
DM		 751}
752
753static void
39817122 754sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
22b75d0a 755{
39817122
RS		 756 const struct elf_backend_data *bed;
757 bfd_byte *loc;
22b75d0a 758
39817122 759 bed = get_elf_backend_data (abfd);
a8735c82 760 BFD_ASSERT (s->reloc_count * bed->s->sizeof_rela < s->size);
39817122
RS		 761 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
762 bed->s->swap_reloca_out (abfd, rel, loc);
22b75d0a
DM		 763}
764
765static bfd_vma
e459dc7b 766sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 767 bfd_vma rel_index ATTRIBUTE_UNUSED,
e459dc7b 768 bfd_vma type ATTRIBUTE_UNUSED)
22b75d0a 769{
91d6fa6a 770 return ELF64_R_INFO (rel_index,
22b75d0a
DM		 771 (in_rel ?
772 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
773 type) : type));
774}
775
776static bfd_vma
777sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 778 bfd_vma rel_index, bfd_vma type)
22b75d0a 779{
91d6fa6a 780 return ELF32_R_INFO (rel_index, type);
22b75d0a
DM		 781}
782
783static bfd_vma
784sparc_elf_r_symndx_64 (bfd_vma r_info)
785{
e8be8da4
DM		 786 bfd_vma r_symndx = ELF32_R_SYM (r_info);
787 return (r_symndx >> 24);
22b75d0a
DM		 788}
789
790static bfd_vma
791sparc_elf_r_symndx_32 (bfd_vma r_info)
792{
793 return ELF32_R_SYM (r_info);
794}
795
796/* PLT/GOT stuff */
797
798#define PLT32_ENTRY_SIZE 12
799#define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
800
801/* The first four entries in a 32-bit procedure linkage table are reserved,
802 and the initial contents are unimportant (we zero them out).
803 Subsequent entries look like this. See the SVR4 ABI SPARC
804 supplement to see how this works. */
805
806/* sethi %hi(.-.plt0),%g1. We fill in the address later. */
807#define PLT32_ENTRY_WORD0 0x03000000
808/* b,a .plt0. We fill in the offset later. */
809#define PLT32_ENTRY_WORD1 0x30800000
810/* nop. */
811#define PLT32_ENTRY_WORD2 SPARC_NOP
812
813static int
814sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
815 bfd_vma max ATTRIBUTE_UNUSED,
816 bfd_vma *r_offset)
817{
818 bfd_put_32 (output_bfd,
819 PLT32_ENTRY_WORD0 + offset,
820 splt->contents + offset);
821 bfd_put_32 (output_bfd,
822 (PLT32_ENTRY_WORD1
823 + (((- (offset + 4)) >> 2) & 0x3fffff)),
824 splt->contents + offset + 4);
825 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
826 splt->contents + offset + 8);
827
828 *r_offset = offset;
829
830 return offset / PLT32_ENTRY_SIZE - 4;
831}
832
833/* Both the headers and the entries are icache aligned. */
834#define PLT64_ENTRY_SIZE 32
835#define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
836#define PLT64_LARGE_THRESHOLD 32768
837
838static int
839sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
840 bfd_vma max, bfd_vma *r_offset)
841{
842 unsigned char *entry = splt->contents + offset;
843 const unsigned int nop = SPARC_NOP;
91d6fa6a 844 int plt_index;
22b75d0a
DM		 845
846 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
847 {
848 unsigned int sethi, ba;
849
850 *r_offset = offset;
851
91d6fa6a 852 plt_index = (offset / PLT64_ENTRY_SIZE);
22b75d0a 853
91d6fa6a 854 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
22b75d0a
DM		 855 ba = 0x30680000
856 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
857
858 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
859 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
860 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
861 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
862 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
863 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
864 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
865 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
866 }
867 else
868 {
869 unsigned char *ptr;
870 unsigned int ldx;
871 int block, last_block, ofs, last_ofs, chunks_this_block;
872 const int insn_chunk_size = (6 * 4);
873 const int ptr_chunk_size = (1 * 8);
874 const int entries_per_block = 160;
875 const int block_size = entries_per_block * (insn_chunk_size
876 + ptr_chunk_size);
877
878 /* Entries 32768 and higher are grouped into blocks of 160.
879 The blocks are further subdivided into 160 sequences of
880 6 instructions and 160 pointers. If a block does not require
881 the full 160 entries, let's say it requires N, then there
882 will be N sequences of 6 instructions and N pointers. */
883
884 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
885 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
886
887 block = offset / block_size;
888 last_block = max / block_size;
889 if (block != last_block)
890 {
891 chunks_this_block = 160;
892 }
893 else
894 {
895 last_ofs = max % block_size;
896 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
897 }
898
899 ofs = offset % block_size;
900
91d6fa6a 901 plt_index = (PLT64_LARGE_THRESHOLD +
22b75d0a
DM		 902 (block * 160) +
903 (ofs / insn_chunk_size));
904
905 ptr = splt->contents
906 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
907 + (block * block_size)
908 + (chunks_this_block * insn_chunk_size)
909 + (ofs / insn_chunk_size) * ptr_chunk_size;
910
911 *r_offset = (bfd_vma) (ptr - splt->contents);
912
913 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
914
915 /* mov %o7,%g5
916 call .+8
917 nop
918 ldx [%o7+P],%g1
919 jmpl %o7+%g1,%g1
920 mov %g5,%o7 */
921 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
922 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
923 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
07d6d2b8 924 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
22b75d0a
DM		 925 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
926 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
927
928 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
929 }
930
91d6fa6a 931 return plt_index - 4;
22b75d0a
DM		 932}
933
910600e9
RS		 934/* The format of the first PLT entry in a VxWorks executable. */
935static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
936 {
937 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
938 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
939 0xc4008000, /* ld [ %g2 ], %g2 */
940 0x81c08000, /* jmp %g2 */
941 0x01000000 /* nop */
942 };
943
944/* The format of subsequent PLT entries. */
945static const bfd_vma sparc_vxworks_exec_plt_entry[] =
946 {
947 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
948 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
949 0xc2004000, /* ld [ %g1 ], %g1 */
950 0x81c04000, /* jmp %g1 */
951 0x01000000, /* nop */
952 0x03000000, /* sethi %hi(f@pltindex), %g1 */
953 0x10800000, /* b _PLT_resolve */
954 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
955 };
956
957/* The format of the first PLT entry in a VxWorks shared object. */
958static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
959 {
960 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
961 0x81c08000, /* jmp %g2 */
962 0x01000000 /* nop */
963 };
964
965/* The format of subsequent PLT entries. */
966static const bfd_vma sparc_vxworks_shared_plt_entry[] =
967 {
968 0x03000000, /* sethi %hi(f@got), %g1 */
969 0x82106000, /* or %g1, %lo(f@got), %g1 */
970 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
971 0x81c04000, /* jmp %g1 */
972 0x01000000, /* nop */
973 0x03000000, /* sethi %hi(f@pltindex), %g1 */
974 0x10800000, /* b _PLT_resolve */
975 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
976 };
977
22b75d0a
DM		 978#define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
979 htab->put_word(bfd, val, ptr)
980
22b75d0a
DM		 981#define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
982 htab->r_info(in_rel, index, type)
983
984#define SPARC_ELF_R_SYMNDX(htab, r_info) \
985 htab->r_symndx(r_info)
986
987#define SPARC_ELF_WORD_BYTES(htab) \
988 htab->bytes_per_word
989
990#define SPARC_ELF_RELA_BYTES(htab) \
991 htab->bytes_per_rela
992
993#define SPARC_ELF_DTPOFF_RELOC(htab) \
994 htab->dtpoff_reloc
995
996#define SPARC_ELF_DTPMOD_RELOC(htab) \
997 htab->dtpmod_reloc
998
999#define SPARC_ELF_TPOFF_RELOC(htab) \
1000 htab->tpoff_reloc
1001
1002#define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
1003 htab->build_plt_entry (obfd, splt, off, max, r_off)
1004
1005/* Create an entry in an SPARC ELF linker hash table. */
1006
1007static struct bfd_hash_entry *
1008link_hash_newfunc (struct bfd_hash_entry *entry,
1009 struct bfd_hash_table *table, const char *string)
1010{
1011 /* Allocate the structure if it has not already been allocated by a
1012 subclass. */
1013 if (entry == NULL)
1014 {
1015 entry = bfd_hash_allocate (table,
1016 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1017 if (entry == NULL)
1018 return entry;
1019 }
1020
1021 /* Call the allocation method of the superclass. */
1022 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1023 if (entry != NULL)
1024 {
1025 struct _bfd_sparc_elf_link_hash_entry *eh;
1026
1027 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
22b75d0a 1028 eh->tls_type = GOT_UNKNOWN;
bb1dd176
QZ		 1029 eh->has_got_reloc = 0;
1030 eh->has_non_got_reloc = 0;
22b75d0a
DM		 1031 }
1032
1033 return entry;
1034}
1035
1036/* The name of the dynamic interpreter. This is put in the .interp
1037 section. */
1038
1039#define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1040#define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1041
d0c9aeb3
DM		 1042/* Compute a hash of a local hash entry. We use elf_link_hash_entry
1043 for local symbol so that we can handle local STT_GNU_IFUNC symbols
1044 as global symbol. We reuse indx and dynstr_index for local symbol
1045 hash since they aren't used by global symbols in this backend. */
1046
1047static hashval_t
1048elf_sparc_local_htab_hash (const void *ptr)
1049{
1050 struct elf_link_hash_entry *h
1051 = (struct elf_link_hash_entry *) ptr;
1052 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1053}
1054
1055/* Compare local hash entries. */
1056
1057static int
1058elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1059{
1060 struct elf_link_hash_entry *h1
1061 = (struct elf_link_hash_entry *) ptr1;
1062 struct elf_link_hash_entry *h2
1063 = (struct elf_link_hash_entry *) ptr2;
1064
1065 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1066}
1067
1068/* Find and/or create a hash entry for local symbol. */
1069
1070static struct elf_link_hash_entry *
1071elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1072 bfd *abfd, const Elf_Internal_Rela *rel,
1073 bfd_boolean create)
1074{
1075 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1076 asection *sec = abfd->sections;
1077 unsigned long r_symndx;
1078 hashval_t h;
1079 void **slot;
1080
1081 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1082 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1083
1084 e.elf.indx = sec->id;
1085 e.elf.dynstr_index = r_symndx;
1086 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1087 create ? INSERT : NO_INSERT);
1088
1089 if (!slot)
1090 return NULL;
1091
1092 if (*slot)
1093 {
1094 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1095 return &ret->elf;
1096 }
1097
1098 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1099 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1100 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1101 if (ret)
1102 {
1103 memset (ret, 0, sizeof (*ret));
1104 ret->elf.indx = sec->id;
1105 ret->elf.dynstr_index = r_symndx;
1106 ret->elf.dynindx = -1;
1107 ret->elf.plt.offset = (bfd_vma) -1;
1108 ret->elf.got.offset = (bfd_vma) -1;
1109 *slot = ret;
1110 }
1111 return &ret->elf;
1112}
1113
68faa637
AM		 1114/* Destroy a SPARC ELF linker hash table. */
1115
d495ab0d
AM		 1116static void
1117_bfd_sparc_elf_link_hash_table_free (bfd *obfd)
68faa637
AM		 1118{
1119 struct _bfd_sparc_elf_link_hash_table *htab
d495ab0d 1120 = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
68faa637
AM		 1121
1122 if (htab->loc_hash_table)
1123 htab_delete (htab->loc_hash_table);
1124 if (htab->loc_hash_memory)
1125 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
d495ab0d 1126 _bfd_elf_link_hash_table_free (obfd);
68faa637
AM		 1127}
1128
22b75d0a
DM		 1129/* Create a SPARC ELF linker hash table. */
1130
1131struct bfd_link_hash_table *
1132_bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1133{
1134 struct _bfd_sparc_elf_link_hash_table *ret;
986f0783 1135 size_t amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
22b75d0a
DM		 1136
1137 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1138 if (ret == NULL)
1139 return NULL;
1140
1141 if (ABI_64_P (abfd))
1142 {
1143 ret->put_word = sparc_put_word_64;
22b75d0a
DM		 1144 ret->r_info = sparc_elf_r_info_64;
1145 ret->r_symndx = sparc_elf_r_symndx_64;
22b75d0a
DM		 1146 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1147 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1148 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1149 ret->word_align_power = 3;
1150 ret->align_power_max = 4;
1151 ret->bytes_per_word = 8;
1152 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
c2e70a82 1153 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
22b75d0a 1154 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1155
1156 ret->build_plt_entry = sparc64_plt_entry_build;
1157 ret->plt_header_size = PLT64_HEADER_SIZE;
1158 ret->plt_entry_size = PLT64_ENTRY_SIZE;
22b75d0a
DM		 1159 }
1160 else
1161 {
1162 ret->put_word = sparc_put_word_32;
22b75d0a
DM		 1163 ret->r_info = sparc_elf_r_info_32;
1164 ret->r_symndx = sparc_elf_r_symndx_32;
22b75d0a
DM		 1165 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1166 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1167 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1168 ret->word_align_power = 2;
1169 ret->align_power_max = 3;
1170 ret->bytes_per_word = 4;
1171 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
c2e70a82 1172 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
22b75d0a 1173 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1174
1175 ret->build_plt_entry = sparc32_plt_entry_build;
1176 ret->plt_header_size = PLT32_HEADER_SIZE;
1177 ret->plt_entry_size = PLT32_ENTRY_SIZE;
22b75d0a
DM		 1178 }
1179
66eb6687 1180 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC		 1181 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1182 SPARC_ELF_DATA))
22b75d0a
DM		 1183 {
1184 free (ret);
1185 return NULL;
1186 }
1187
d0c9aeb3
DM		 1188 ret->loc_hash_table = htab_try_create (1024,
1189 elf_sparc_local_htab_hash,
1190 elf_sparc_local_htab_eq,
1191 NULL);
1192 ret->loc_hash_memory = objalloc_create ();
1193 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1194 {
d495ab0d 1195 _bfd_sparc_elf_link_hash_table_free (abfd);
d0c9aeb3
DM		 1196 return NULL;
1197 }
d495ab0d 1198 ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
d0c9aeb3 1199
22b75d0a
DM		 1200 return &ret->elf.root;
1201}
1202
22b75d0a
DM		 1203/* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1204 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1205 hash table. */
1206
1207bfd_boolean
1208_bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1209 struct bfd_link_info *info)
1210{
1211 struct _bfd_sparc_elf_link_hash_table *htab;
1212
1213 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 1214 BFD_ASSERT (htab != NULL);
1215
22b75d0a
DM		 1216 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1217 return FALSE;
1218
90c14f0c 1219 if (htab->elf.target_os == is_vxworks)
910600e9
RS		 1220 {
1221 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1222 return FALSE;
0e1862bb 1223 if (bfd_link_pic (info))
910600e9
RS		 1224 {
1225 htab->plt_header_size
1226 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1227 htab->plt_entry_size
1228 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1229 }
1230 else
1231 {
1232 htab->plt_header_size
1233 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1234 htab->plt_entry_size
1235 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1236 }
1237 }
910600e9 1238
9d19e4fd
AM		 1239 if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1240 || (!bfd_link_pic (info) && !htab->elf.srelbss))
22b75d0a
DM		 1241 abort ();
1242
1243 return TRUE;
1244}
1245
d0c9aeb3
DM		 1246static bfd_boolean
1247create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1248{
1249 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1250 struct elf_link_hash_table *htab = elf_hash_table (info);
1251 flagword flags, pltflags;
1252 asection *s;
1253
1254 if (htab->irelifunc != NULL || htab->iplt != NULL)
1255 return TRUE;
1256
1257 flags = bed->dynamic_sec_flags;
1258 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1259
1260 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1261 if (s == NULL
fd361982 1262 || !bfd_set_section_alignment (s, bed->plt_alignment))
d0c9aeb3
DM		 1263 return FALSE;
1264 htab->iplt = s;
1265
1266 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1267 flags | SEC_READONLY);
1268 if (s == NULL
fd361982 1269 || !bfd_set_section_alignment (s, bed->s->log_file_align))
d0c9aeb3
DM		 1270 return FALSE;
1271 htab->irelplt = s;
1272
1273 return TRUE;
1274}
1275
22b75d0a
DM		 1276/* Copy the extra info we tack onto an elf_link_hash_entry. */
1277
1278void
fcfa13d2 1279_bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
22b75d0a
DM		 1280 struct elf_link_hash_entry *dir,
1281 struct elf_link_hash_entry *ind)
1282{
1283 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1284
1285 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1286 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1287
a8735c82 1288 if (ind->root.type == bfd_link_hash_indirect && dir->got.refcount <= 0)
22b75d0a
DM		 1289 {
1290 edir->tls_type = eind->tls_type;
1291 eind->tls_type = GOT_UNKNOWN;
1292 }
bb1dd176
QZ		 1293
1294 /* Copy has_got_reloc and has_non_got_reloc. */
1295 edir->has_got_reloc |= eind->has_got_reloc;
1296 edir->has_non_got_reloc |= eind->has_non_got_reloc;
1297
fcfa13d2 1298 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
22b75d0a
DM		 1299}
1300
1301static int
1302sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1303 int r_type, int is_local)
1304{
1305 if (! ABI_64_P (abfd)
1306 && r_type == R_SPARC_TLS_GD_HI22
1307 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
c20c30f6 1308 return R_SPARC_REV32;
22b75d0a 1309
c20c30f6 1310 if (!bfd_link_executable (info))
22b75d0a
DM		 1311 return r_type;
1312
1313 switch (r_type)
1314 {
1315 case R_SPARC_TLS_GD_HI22:
c20c30f6 1316 return is_local ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_IE_HI22;
22b75d0a 1317 case R_SPARC_TLS_GD_LO10:
c20c30f6 1318 return is_local ? R_SPARC_TLS_LE_LOX10 : R_SPARC_TLS_IE_LO10;
22b75d0a
DM		 1319 case R_SPARC_TLS_LDM_HI22:
1320 return R_SPARC_TLS_LE_HIX22;
1321 case R_SPARC_TLS_LDM_LO10:
1322 return R_SPARC_TLS_LE_LOX10;
c20c30f6
EB		 1323 case R_SPARC_TLS_IE_HI22:
1324 return is_local ? R_SPARC_TLS_LE_HIX22 : r_type;
1325 case R_SPARC_TLS_IE_LO10:
1326 return is_local ? R_SPARC_TLS_LE_LOX10 : r_type;
22b75d0a
DM		 1327 }
1328
1329 return r_type;
1330}
1331\f
1332/* Look through the relocs for a section during the first phase, and
1333 allocate space in the global offset table or procedure linkage
1334 table. */
1335
1336bfd_boolean
1337_bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1338 asection *sec, const Elf_Internal_Rela *relocs)
1339{
1340 struct _bfd_sparc_elf_link_hash_table *htab;
1341 Elf_Internal_Shdr *symtab_hdr;
1342 struct elf_link_hash_entry **sym_hashes;
22b75d0a
DM		 1343 const Elf_Internal_Rela *rel;
1344 const Elf_Internal_Rela *rel_end;
1345 asection *sreloc;
1346 int num_relocs;
1347 bfd_boolean checked_tlsgd = FALSE;
1348
0e1862bb 1349 if (bfd_link_relocatable (info))
22b75d0a
DM		 1350 return TRUE;
1351
1352 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1353 BFD_ASSERT (htab != NULL);
0ffa91dd 1354 symtab_hdr = &elf_symtab_hdr (abfd);
22b75d0a 1355 sym_hashes = elf_sym_hashes (abfd);
22b75d0a
DM		 1356
1357 sreloc = NULL;
1358
1359 if (ABI_64_P (abfd))
d4730f92 1360 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
22b75d0a
DM		 1361 else
1362 num_relocs = sec->reloc_count;
0ffa91dd
NC		 1363
1364 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1365
d0c9aeb3
DM		 1366 if (htab->elf.dynobj == NULL)
1367 htab->elf.dynobj = abfd;
1368 if (!create_ifunc_sections (htab->elf.dynobj, info))
1369 return FALSE;
1370
22b75d0a
DM		 1371 rel_end = relocs + num_relocs;
1372 for (rel = relocs; rel < rel_end; rel++)
1373 {
1374 unsigned int r_type;
d42c267e 1375 unsigned int r_symndx;
22b75d0a 1376 struct elf_link_hash_entry *h;
bb1dd176 1377 struct _bfd_sparc_elf_link_hash_entry *eh;
d0c9aeb3 1378 Elf_Internal_Sym *isym;
22b75d0a
DM		 1379
1380 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1381 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1382
1383 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1384 {
695344c0 1385 /* xgettext:c-format */
871b3ab2 1386 _bfd_error_handler (_("%pB: bad symbol index: %d"), abfd, r_symndx);
22b75d0a
DM		 1387 return FALSE;
1388 }
1389
d0c9aeb3 1390 isym = NULL;
22b75d0a 1391 if (r_symndx < symtab_hdr->sh_info)
d0c9aeb3
DM		 1392 {
1393 /* A local symbol. */
f1dfbfdb
L		 1394 isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache, abfd,
1395 r_symndx);
d0c9aeb3
DM		 1396 if (isym == NULL)
1397 return FALSE;
1398
1399 /* Check relocation against local STT_GNU_IFUNC symbol. */
1400 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1401 {
c20c30f6 1402 h = elf_sparc_get_local_sym_hash (htab, abfd, rel, TRUE);
d0c9aeb3
DM		 1403 if (h == NULL)
1404 return FALSE;
68ffbac6 1405
d0c9aeb3
DM		 1406 /* Fake a STT_GNU_IFUNC symbol. */
1407 h->type = STT_GNU_IFUNC;
1408 h->def_regular = 1;
1409 h->ref_regular = 1;
1410 h->forced_local = 1;
1411 h->root.type = bfd_link_hash_defined;
1412 }
1413 else
1414 h = NULL;
1415 }
22b75d0a 1416 else
973a3492
L		 1417 {
1418 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1419 while (h->root.type == bfd_link_hash_indirect
1420 || h->root.type == bfd_link_hash_warning)
1421 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1422 }
22b75d0a 1423
c20c30f6 1424 if (h && h->type == STT_GNU_IFUNC && h->def_regular)
d0c9aeb3 1425 {
c20c30f6
EB		 1426 h->ref_regular = 1;
1427 h->plt.refcount += 1;
d0c9aeb3
DM		 1428 }
1429
22b75d0a
DM		 1430 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1431 with R_SPARC_TLS_GD_HI22. */
1432 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1433 switch (r_type)
1434 {
1435 case R_SPARC_TLS_GD_HI22:
1436 {
1437 const Elf_Internal_Rela *relt;
1438
1439 for (relt = rel + 1; relt < rel_end; relt++)
1440 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1441 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1442 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1443 break;
1444 checked_tlsgd = TRUE;
1445 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1446 }
1447 break;
1448 case R_SPARC_TLS_GD_LO10:
1449 case R_SPARC_TLS_GD_ADD:
1450 case R_SPARC_TLS_GD_CALL:
1451 checked_tlsgd = TRUE;
1452 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1453 break;
1454 }
1455
1456 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
bb1dd176
QZ		 1457 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1458
22b75d0a
DM		 1459 switch (r_type)
1460 {
1461 case R_SPARC_TLS_LDM_HI22:
1462 case R_SPARC_TLS_LDM_LO10:
1463 htab->tls_ldm_got.refcount += 1;
07d6d2b8
AM		 1464 if (eh != NULL)
1465 eh->has_got_reloc = 1;
22b75d0a
DM		 1466 break;
1467
1468 case R_SPARC_TLS_LE_HIX22:
1469 case R_SPARC_TLS_LE_LOX10:
c20c30f6 1470 if (!bfd_link_executable (info))
22b75d0a
DM		 1471 goto r_sparc_plt32;
1472 break;
1473
1474 case R_SPARC_TLS_IE_HI22:
1475 case R_SPARC_TLS_IE_LO10:
c20c30f6 1476 if (!bfd_link_executable (info))
22b75d0a
DM		 1477 info->flags |= DF_STATIC_TLS;
1478 /* Fall through */
1479
1480 case R_SPARC_GOT10:
1481 case R_SPARC_GOT13:
1482 case R_SPARC_GOT22:
739f7f82
DM		 1483 case R_SPARC_GOTDATA_HIX22:
1484 case R_SPARC_GOTDATA_LOX10:
1485 case R_SPARC_GOTDATA_OP_HIX22:
1486 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1487 case R_SPARC_TLS_GD_HI22:
1488 case R_SPARC_TLS_GD_LO10:
1489 /* This symbol requires a global offset table entry. */
1490 {
1491 int tls_type, old_tls_type;
1492
1493 switch (r_type)
1494 {
22b75d0a
DM		 1495 case R_SPARC_TLS_GD_HI22:
1496 case R_SPARC_TLS_GD_LO10:
1497 tls_type = GOT_TLS_GD;
1498 break;
1499 case R_SPARC_TLS_IE_HI22:
1500 case R_SPARC_TLS_IE_LO10:
1501 tls_type = GOT_TLS_IE;
1502 break;
c20c30f6
EB		 1503 default:
1504 tls_type = GOT_NORMAL;
1505 break;
22b75d0a
DM		 1506 }
1507
1508 if (h != NULL)
1509 {
1510 h->got.refcount += 1;
1511 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1512 }
1513 else
1514 {
1515 bfd_signed_vma *local_got_refcounts;
1516
1517 /* This is a global offset table entry for a local symbol. */
1518 local_got_refcounts = elf_local_got_refcounts (abfd);
1519 if (local_got_refcounts == NULL)
1520 {
1521 bfd_size_type size;
1522
1523 size = symtab_hdr->sh_info;
1524 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1525 local_got_refcounts = ((bfd_signed_vma *)
1526 bfd_zalloc (abfd, size));
1527 if (local_got_refcounts == NULL)
1528 return FALSE;
1529 elf_local_got_refcounts (abfd) = local_got_refcounts;
1530 _bfd_sparc_elf_local_got_tls_type (abfd)
1531 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1532 }
00c50991 1533
c20c30f6
EB		 1534 if (r_type != R_SPARC_GOTDATA_OP_HIX22
1535 && r_type != R_SPARC_GOTDATA_OP_LOX10)
1536 local_got_refcounts[r_symndx] += 1;
1537
f8745e1c
EB		 1538 old_tls_type
1539 = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
22b75d0a
DM		 1540 }
1541
f8745e1c
EB		 1542 /* If a TLS symbol is accessed using IE at least once, there is no
1543 point in using the dynamic model for it. */
c20c30f6 1544 if (old_tls_type != tls_type)
22b75d0a 1545 {
c20c30f6
EB		 1546 if (old_tls_type == GOT_UNKNOWN)
1547 ;
1548 else if (old_tls_type == GOT_TLS_GD && tls_type == GOT_TLS_IE)
1549 ;
1550 else if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
22b75d0a
DM		 1551 tls_type = old_tls_type;
1552 else
1553 {
4eca0228 1554 _bfd_error_handler
695344c0 1555 /* xgettext:c-format */
871b3ab2 1556 (_("%pB: `%s' accessed both as normal and thread local symbol"),
22b75d0a
DM		 1557 abfd, h ? h->root.root.string : "<local>");
1558 return FALSE;
1559 }
22b75d0a 1560
22b75d0a
DM		 1561 if (h != NULL)
1562 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1563 else
1564 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1565 }
1566 }
1567
c20c30f6
EB		 1568 if (!htab->elf.sgot
1569 && !_bfd_elf_create_got_section (htab->elf.dynobj, info))
1570 return FALSE;
bb1dd176 1571
07d6d2b8 1572 if (eh != NULL)
f8745e1c
EB		 1573 {
1574 eh->has_got_reloc = 1;
1575 if (r_type == R_SPARC_GOT10
1576 || r_type == R_SPARC_GOT13
1577 || r_type == R_SPARC_GOT22)
1578 eh->has_old_style_got_reloc = 1;
1579 }
22b75d0a
DM		 1580 break;
1581
1582 case R_SPARC_TLS_GD_CALL:
1583 case R_SPARC_TLS_LDM_CALL:
c20c30f6 1584 if (bfd_link_executable (info))
22b75d0a 1585 break;
c20c30f6
EB		 1586
1587 /* Essentially R_SPARC_WPLT30 relocs against __tls_get_addr. */
1588 h = (struct elf_link_hash_entry *)
e513bd38 1589 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
c20c30f6 1590 FALSE, TRUE);
e513bd38 1591 BFD_ASSERT (h != NULL);
22b75d0a
DM		 1592 /* Fall through */
1593
22b75d0a 1594 case R_SPARC_WPLT30:
c20c30f6
EB		 1595 case R_SPARC_PLT32:
1596 case R_SPARC_PLT64:
22b75d0a
DM		 1597 case R_SPARC_HIPLT22:
1598 case R_SPARC_LOPLT10:
1599 case R_SPARC_PCPLT32:
1600 case R_SPARC_PCPLT22:
1601 case R_SPARC_PCPLT10:
c20c30f6
EB		 1602 /* This symbol requires a procedure linkage table entry.
1603 We actually build the entry in adjust_dynamic_symbol,
22b75d0a
DM		 1604 because this might be a case of linking PIC code without
1605 linking in any dynamic objects, in which case we don't
1606 need to generate a procedure linkage table after all. */
1607
1608 if (h == NULL)
1609 {
1610 if (! ABI_64_P (abfd))
1611 {
1612 /* The Solaris native assembler will generate a WPLT30
1613 reloc for a local symbol if you assemble a call from
1614 one section to another when using -K pic. We treat
1615 it as WDISP30. */
c20c30f6 1616 if (r_type == R_SPARC_PLT32)
22b75d0a
DM		 1617 goto r_sparc_plt32;
1618 break;
1619 }
af1fb11f
NC		 1620 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1621 else if (r_type == R_SPARC_WPLT30)
1622 break;
22b75d0a
DM		 1623
1624 /* It does not make sense to have a procedure linkage
07d6d2b8 1625 table entry for a local symbol. */
22b75d0a
DM		 1626 bfd_set_error (bfd_error_bad_value);
1627 return FALSE;
1628 }
1629
1630 h->needs_plt = 1;
1631
c20c30f6
EB		 1632 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
1633 goto r_sparc_plt32;
22b75d0a 1634
22b75d0a 1635 h->plt.refcount += 1;
bb1dd176 1636
07d6d2b8
AM		 1637 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1638 eh->has_got_reloc = 1;
22b75d0a
DM		 1639 break;
1640
1641 case R_SPARC_PC10:
1642 case R_SPARC_PC22:
1643 case R_SPARC_PC_HH22:
1644 case R_SPARC_PC_HM10:
1645 case R_SPARC_PC_LM22:
1646 if (h != NULL)
1647 h->non_got_ref = 1;
1648
1649 if (h != NULL
1650 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1651 break;
1652 /* Fall through. */
1653
1654 case R_SPARC_DISP8:
1655 case R_SPARC_DISP16:
1656 case R_SPARC_DISP32:
1657 case R_SPARC_DISP64:
1658 case R_SPARC_WDISP30:
1659 case R_SPARC_WDISP22:
1660 case R_SPARC_WDISP19:
1661 case R_SPARC_WDISP16:
2615994e 1662 case R_SPARC_WDISP10:
22b75d0a
DM		 1663 case R_SPARC_8:
1664 case R_SPARC_16:
1665 case R_SPARC_32:
1666 case R_SPARC_HI22:
1667 case R_SPARC_22:
1668 case R_SPARC_13:
1669 case R_SPARC_LO10:
1670 case R_SPARC_UA16:
1671 case R_SPARC_UA32:
1672 case R_SPARC_10:
1673 case R_SPARC_11:
1674 case R_SPARC_64:
1675 case R_SPARC_OLO10:
1676 case R_SPARC_HH22:
1677 case R_SPARC_HM10:
1678 case R_SPARC_LM22:
1679 case R_SPARC_7:
1680 case R_SPARC_5:
1681 case R_SPARC_6:
1682 case R_SPARC_HIX22:
1683 case R_SPARC_LOX10:
1684 case R_SPARC_H44:
1685 case R_SPARC_M44:
1686 case R_SPARC_L44:
2615994e 1687 case R_SPARC_H34:
22b75d0a
DM		 1688 case R_SPARC_UA64:
1689 if (h != NULL)
1690 h->non_got_ref = 1;
1691
07d6d2b8
AM		 1692 if (eh != NULL && (sec->flags & SEC_CODE) != 0)
1693 eh->has_non_got_reloc = 1;
bb1dd176 1694
22b75d0a 1695 r_sparc_plt32:
0e1862bb 1696 if (h != NULL && !bfd_link_pic (info))
22b75d0a
DM		 1697 {
1698 /* We may need a .plt entry if the function this reloc
1699 refers to is in a shared lib. */
1700 h->plt.refcount += 1;
1701 }
1702
1703 /* If we are creating a shared library, and this is a reloc
1704 against a global symbol, or a non PC relative reloc
1705 against a local symbol, then we need to copy the reloc
1706 into the shared library. However, if we are linking with
1707 -Bsymbolic, we do not need to copy a reloc against a
1708 global symbol which is defined in an object we are
1709 including in the link (i.e., DEF_REGULAR is set). At
1710 this point we have not seen all the input files, so it is
1711 possible that DEF_REGULAR is not set now but will be set
1712 later (it is never cleared). In case of a weak definition,
1713 DEF_REGULAR may be cleared later by a strong definition in
1714 a shared library. We account for that possibility below by
1715 storing information in the relocs_copied field of the hash
1716 table entry. A similar situation occurs when creating
1717 shared libraries and symbol visibility changes render the
1718 symbol local.
1719
1720 If on the other hand, we are creating an executable, we
1721 may need to keep relocations for symbols satisfied by a
1722 dynamic library if we manage to avoid copy relocs for the
1723 symbol. */
0e1862bb 1724 if ((bfd_link_pic (info)
22b75d0a
DM		 1725 && (sec->flags & SEC_ALLOC) != 0
1726 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1727 || (h != NULL
72fbc6e5 1728 && (! SYMBOLIC_BIND (info, h)
22b75d0a
DM		 1729 || h->root.type == bfd_link_hash_defweak
1730 || !h->def_regular))))
0e1862bb 1731 || (!bfd_link_pic (info)
22b75d0a
DM		 1732 && (sec->flags & SEC_ALLOC) != 0
1733 && h != NULL
1734 && (h->root.type == bfd_link_hash_defweak
d0c9aeb3 1735 || !h->def_regular))
0e1862bb 1736 || (!bfd_link_pic (info)
d0c9aeb3
DM		 1737 && h != NULL
1738 && h->type == STT_GNU_IFUNC))
22b75d0a 1739 {
3bf083ed
AM		 1740 struct elf_dyn_relocs *p;
1741 struct elf_dyn_relocs **head;
22b75d0a
DM		 1742
1743 /* When creating a shared object, we must copy these
1744 relocs into the output file. We create a reloc
1745 section in dynobj and make room for the reloc. */
1746 if (sreloc == NULL)
1747 {
83bac4b0
NC		 1748 sreloc = _bfd_elf_make_dynamic_reloc_section
1749 (sec, htab->elf.dynobj, htab->word_align_power,
1750 abfd, /*rela?*/ TRUE);
1751
22b75d0a 1752 if (sreloc == NULL)
83bac4b0 1753 return FALSE;
22b75d0a
DM		 1754 }
1755
1756 /* If this is a global symbol, we count the number of
1757 relocations we need for this symbol. */
1758 if (h != NULL)
190eb1dd 1759 head = &h->dyn_relocs;
22b75d0a
DM		 1760 else
1761 {
1762 /* Track dynamic relocs needed for local syms too.
1763 We really need local syms available to do this
1764 easily. Oh well. */
22b75d0a 1765 asection *s;
6edfbbad 1766 void *vpp;
22b75d0a 1767
d0c9aeb3 1768 BFD_ASSERT (isym != NULL);
87d72d41
AM		 1769 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1770 if (s == NULL)
1771 s = sec;
1772
6edfbbad 1773 vpp = &elf_section_data (s)->local_dynrel;
3bf083ed 1774 head = (struct elf_dyn_relocs **) vpp;
22b75d0a
DM		 1775 }
1776
1777 p = *head;
1778 if (p == NULL || p->sec != sec)
1779 {
986f0783 1780 size_t amt = sizeof *p;
3bf083ed 1781 p = ((struct elf_dyn_relocs *)
22b75d0a
DM		 1782 bfd_alloc (htab->elf.dynobj, amt));
1783 if (p == NULL)
1784 return FALSE;
1785 p->next = *head;
1786 *head = p;
1787 p->sec = sec;
1788 p->count = 0;
1789 p->pc_count = 0;
1790 }
1791
1792 p->count += 1;
1793 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1794 p->pc_count += 1;
1795 }
1796
1797 break;
1798
1799 case R_SPARC_GNU_VTINHERIT:
1800 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1801 return FALSE;
1802 break;
1803
1804 case R_SPARC_GNU_VTENTRY:
a0ea3a14 1805 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
22b75d0a
DM		 1806 return FALSE;
1807 break;
1808
1809 case R_SPARC_REGISTER:
1810 /* Nothing to do. */
1811 break;
1812
1813 default:
1814 break;
1815 }
1816 }
1817
1818 return TRUE;
1819}
1820\f
1821asection *
1822_bfd_sparc_elf_gc_mark_hook (asection *sec,
1823 struct bfd_link_info *info,
1824 Elf_Internal_Rela *rel,
1825 struct elf_link_hash_entry *h,
1826 Elf_Internal_Sym *sym)
1827{
1828 if (h != NULL)
07adf181 1829 switch (SPARC_ELF_R_TYPE (rel->r_info))
22b75d0a
DM		 1830 {
1831 case R_SPARC_GNU_VTINHERIT:
1832 case R_SPARC_GNU_VTENTRY:
07adf181 1833 return NULL;
22b75d0a 1834 }
22b75d0a 1835
c20c30f6 1836 if (!bfd_link_executable (info))
b45b6908
AM		 1837 {
1838 switch (SPARC_ELF_R_TYPE (rel->r_info))
1839 {
1840 case R_SPARC_TLS_GD_CALL:
1841 case R_SPARC_TLS_LDM_CALL:
1842 /* This reloc implicitly references __tls_get_addr. We know
1843 another reloc will reference the same symbol as the one
1844 on this reloc, so the real symbol and section will be
1845 gc marked when processing the other reloc. That lets
1846 us handle __tls_get_addr here. */
1847 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1848 FALSE, FALSE, TRUE);
1849 BFD_ASSERT (h != NULL);
1850 h->mark = 1;
60d67dc8
AM		 1851 if (h->is_weakalias)
1852 weakdef (h)->mark = 1;
b45b6908
AM		 1853 sym = NULL;
1854 }
1855 }
1856
07adf181 1857 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
22b75d0a
DM		 1858}
1859
abd242a9
DM		 1860static Elf_Internal_Rela *
1861sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
1862 Elf_Internal_Rela *relend,
1863 bfd_vma offset)
1864{
1865 while (rel < relend)
1866 {
1867 if (rel->r_offset == offset)
1868 return rel;
1869 rel++;
1870 }
1871 return NULL;
1872}
1873
bb1dd176
QZ		 1874/* Remove undefined weak symbol from the dynamic symbol table if it
1875 is resolved to 0. */
1876
1877bfd_boolean
1878_bfd_sparc_elf_fixup_symbol (struct bfd_link_info *info,
07d6d2b8 1879 struct elf_link_hash_entry *h)
bb1dd176
QZ		 1880{
1881 if (h->dynindx != -1
1882 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
07d6d2b8 1883 _bfd_sparc_elf_hash_entry (h)))
bb1dd176
QZ		 1884 {
1885 h->dynindx = -1;
1886 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
07d6d2b8 1887 h->dynstr_index);
bb1dd176
QZ		 1888 }
1889 return TRUE;
1890}
1891
22b75d0a
DM		 1892/* Adjust a symbol defined by a dynamic object and referenced by a
1893 regular object. The current definition is in some section of the
1894 dynamic object, but we're not including those sections. We have to
1895 change the definition to something the rest of the link can
1896 understand. */
1897
1898bfd_boolean
1899_bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1900 struct elf_link_hash_entry *h)
1901{
1902 struct _bfd_sparc_elf_link_hash_table *htab;
5474d94f 1903 asection *s, *srel;
22b75d0a
DM		 1904
1905 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1906 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 1907
1908 /* Make sure we know what is going on here. */
1909 BFD_ASSERT (htab->elf.dynobj != NULL
1910 && (h->needs_plt
d0c9aeb3 1911 || h->type == STT_GNU_IFUNC
60d67dc8 1912 || h->is_weakalias
22b75d0a
DM		 1913 || (h->def_dynamic
1914 && h->ref_regular
1915 && !h->def_regular)));
1916
1917 /* If this is a function, put it in the procedure linkage table. We
1918 will fill in the contents of the procedure linkage table later
1919 (although we could actually do it here). The STT_NOTYPE
1920 condition is a hack specifically for the Oracle libraries
1921 delivered for Solaris; for some inexplicable reason, they define
1922 some of their functions as STT_NOTYPE when they really should be
1923 STT_FUNC. */
1924 if (h->type == STT_FUNC
d0c9aeb3 1925 || h->type == STT_GNU_IFUNC
22b75d0a
DM		 1926 || h->needs_plt
1927 || (h->type == STT_NOTYPE
1928 && (h->root.type == bfd_link_hash_defined
1929 || h->root.type == bfd_link_hash_defweak)
1930 && (h->root.u.def.section->flags & SEC_CODE) != 0))
1931 {
1932 if (h->plt.refcount <= 0
d0c9aeb3
DM		 1933 || (h->type != STT_GNU_IFUNC
1934 && (SYMBOL_CALLS_LOCAL (info, h)
a8735c82
EB		 1935 || (h->root.type == bfd_link_hash_undefweak
1936 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT))))
22b75d0a
DM		 1937 {
1938 /* This case can occur if we saw a WPLT30 reloc in an input
1939 file, but the symbol was never referred to by a dynamic
1940 object, or if all references were garbage collected. In
1941 such a case, we don't actually need to build a procedure
1942 linkage table, and we can just do a WDISP30 reloc instead. */
1943 h->plt.offset = (bfd_vma) -1;
1944 h->needs_plt = 0;
1945 }
1946
1947 return TRUE;
1948 }
1949 else
1950 h->plt.offset = (bfd_vma) -1;
1951
1952 /* If this is a weak symbol, and there is a real definition, the
1953 processor independent code will have arranged for us to see the
1954 real definition first, and we can just use the same value. */
60d67dc8 1955 if (h->is_weakalias)
22b75d0a 1956 {
60d67dc8
AM		 1957 struct elf_link_hash_entry *def = weakdef (h);
1958 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1959 h->root.u.def.section = def->root.u.def.section;
1960 h->root.u.def.value = def->root.u.def.value;
22b75d0a
DM		 1961 return TRUE;
1962 }
1963
1964 /* This is a reference to a symbol defined by a dynamic object which
1965 is not a function. */
1966
1967 /* If we are creating a shared library, we must presume that the
1968 only references to the symbol are via the global offset table.
1969 For such cases we need not do anything here; the relocations will
1970 be handled correctly by relocate_section. */
0e1862bb 1971 if (bfd_link_pic (info))
22b75d0a
DM		 1972 return TRUE;
1973
1974 /* If there are no references to this symbol that do not use the
1975 GOT, we don't need to generate a copy reloc. */
1976 if (!h->non_got_ref)
1977 return TRUE;
1978
72fbc6e5
DM		 1979 /* If -z nocopyreloc was given, we won't generate them either. */
1980 if (info->nocopyreloc)
1981 {
1982 h->non_got_ref = 0;
1983 return TRUE;
1984 }
1985
3bf083ed 1986 /* If we don't find any dynamic relocs in read-only sections, then
22b75d0a 1987 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
5dbc8b37 1988 if (!_bfd_elf_readonly_dynrelocs (h))
22b75d0a
DM		 1989 {
1990 h->non_got_ref = 0;
1991 return TRUE;
1992 }
1993
1994 /* We must allocate the symbol in our .dynbss section, which will
1995 become part of the .bss section of the executable. There will be
1996 an entry for this symbol in the .dynsym section. The dynamic
1997 object will contain position independent code, so all references
1998 from the dynamic object to this symbol will go through the global
1999 offset table. The dynamic linker will use the .dynsym entry to
2000 determine the address it must put in the global offset table, so
2001 both the dynamic object and the regular object will refer to the
2002 same memory location for the variable. */
2003
2004 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2005 to copy the initial value out of the dynamic object and into the
2006 runtime process image. We need to remember the offset into the
2007 .rel.bss section we are going to use. */
5474d94f
AM		 2008 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2009 {
2010 s = htab->elf.sdynrelro;
2011 srel = htab->elf.sreldynrelro;
2012 }
2013 else
2014 {
2015 s = htab->elf.sdynbss;
2016 srel = htab->elf.srelbss;
2017 }
1d7e9d18 2018 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
22b75d0a 2019 {
5474d94f 2020 srel->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2021 h->needs_copy = 1;
2022 }
2023
6cabe1ea 2024 return _bfd_elf_adjust_dynamic_copy (info, h, s);
22b75d0a
DM		 2025}
2026
2027/* Allocate space in .plt, .got and associated reloc sections for
2028 dynamic relocs. */
2029
2030static bfd_boolean
2c3fc389 2031allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
22b75d0a
DM		 2032{
2033 struct bfd_link_info *info;
2034 struct _bfd_sparc_elf_link_hash_table *htab;
2035 struct _bfd_sparc_elf_link_hash_entry *eh;
3bf083ed 2036 struct elf_dyn_relocs *p;
bb1dd176 2037 bfd_boolean resolved_to_zero;
22b75d0a
DM		 2038
2039 if (h->root.type == bfd_link_hash_indirect)
2040 return TRUE;
2041
22b75d0a
DM		 2042 info = (struct bfd_link_info *) inf;
2043 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2044 BFD_ASSERT (htab != NULL);
22b75d0a 2045
bb1dd176
QZ		 2046 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2047 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
2048
d0c9aeb3
DM		 2049 if ((htab->elf.dynamic_sections_created
2050 && h->plt.refcount > 0)
2051 || (h->type == STT_GNU_IFUNC
b48ca1d4
DM		 2052 && h->def_regular
2053 && h->ref_regular))
22b75d0a 2054 {
a8735c82
EB		 2055 /* Undefined weak syms won't yet be marked as dynamic. */
2056 if (h->root.type == bfd_link_hash_undefweak
07d6d2b8 2057 && !resolved_to_zero
a8735c82
EB		 2058 && h->dynindx == -1
2059 && !h->forced_local)
22b75d0a
DM		 2060 {
2061 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2062 return FALSE;
2063 }
2064
0e1862bb 2065 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
b48ca1d4
DM		 2066 || (h->type == STT_GNU_IFUNC
2067 && h->def_regular))
22b75d0a 2068 {
72fbc6e5 2069 asection *s = htab->elf.splt;
22b75d0a 2070
d0c9aeb3
DM		 2071 if (s == NULL)
2072 s = htab->elf.iplt;
2073
910600e9 2074 /* Allocate room for the header. */
22b75d0a 2075 if (s->size == 0)
910600e9
RS		 2076 {
2077 s->size = htab->plt_header_size;
2078
2079 /* Allocate space for the .rela.plt.unloaded relocations. */
90c14f0c
L		 2080 if (htab->elf.target_os == is_vxworks
2081 && !bfd_link_pic (info))
910600e9
RS		 2082 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2083 }
22b75d0a
DM		 2084
2085 /* The procedure linkage table size is bounded by the magnitude
2086 of the offset we can describe in the entry. */
2087 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
e8be8da4 2088 (((bfd_vma)1 << 31) << 1) : 0x400000))
22b75d0a
DM		 2089 {
2090 bfd_set_error (bfd_error_bad_value);
2091 return FALSE;
2092 }
2093
2094 if (SPARC_ELF_WORD_BYTES(htab) == 8
2095 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2096 {
2097 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2098
2099
2100 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2101
2102 h->plt.offset = (s->size - (off * 8));
2103 }
2104 else
2105 h->plt.offset = s->size;
2106
2107 /* If this symbol is not defined in a regular file, and we are
2108 not generating a shared library, then set the symbol to this
2109 location in the .plt. This is required to make function
2110 pointers compare as equal between the normal executable and
2111 the shared library. */
0e1862bb 2112 if (! bfd_link_pic (info)
22b75d0a
DM		 2113 && !h->def_regular)
2114 {
2115 h->root.u.def.section = s;
2116 h->root.u.def.value = h->plt.offset;
2117 }
2118
2119 /* Make room for this entry. */
910600e9 2120 s->size += htab->plt_entry_size;
22b75d0a 2121
07d6d2b8
AM		 2122 /* There should be no PLT relocations against resolved undefined
2123 weak symbols in the executable. */
2124 if (!resolved_to_zero)
2125 {
bb1dd176
QZ		 2126 /* We also need to make an entry in the .rela.plt section. */
2127 if (s == htab->elf.splt)
07d6d2b8 2128 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
bb1dd176 2129 else
07d6d2b8
AM		 2130 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
2131 }
910600e9 2132
90c14f0c 2133 if (htab->elf.target_os == is_vxworks)
910600e9
RS		 2134 {
2135 /* Allocate space for the .got.plt entry. */
72fbc6e5 2136 htab->elf.sgotplt->size += 4;
910600e9
RS		 2137
2138 /* ...and for the .rela.plt.unloaded relocations. */
0e1862bb 2139 if (!bfd_link_pic (info))
910600e9
RS		 2140 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2141 }
22b75d0a
DM		 2142 }
2143 else
2144 {
2145 h->plt.offset = (bfd_vma) -1;
2146 h->needs_plt = 0;
2147 }
2148 }
2149 else
2150 {
2151 h->plt.offset = (bfd_vma) -1;
2152 h->needs_plt = 0;
2153 }
2154
2155 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2156 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2157 if (h->got.refcount > 0
c20c30f6 2158 && bfd_link_executable (info)
22b75d0a
DM		 2159 && h->dynindx == -1
2160 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2161 h->got.offset = (bfd_vma) -1;
2162 else if (h->got.refcount > 0)
2163 {
2164 asection *s;
2165 bfd_boolean dyn;
2166 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2167
a8735c82
EB		 2168 /* Undefined weak syms won't yet be marked as dynamic. */
2169 if (h->root.type == bfd_link_hash_undefweak
07d6d2b8 2170 && !resolved_to_zero
a8735c82
EB		 2171 && h->dynindx == -1
2172 && !h->forced_local)
22b75d0a
DM		 2173 {
2174 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2175 return FALSE;
2176 }
2177
72fbc6e5 2178 s = htab->elf.sgot;
22b75d0a
DM		 2179 h->got.offset = s->size;
2180 s->size += SPARC_ELF_WORD_BYTES (htab);
2181 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2182 if (tls_type == GOT_TLS_GD)
2183 s->size += SPARC_ELF_WORD_BYTES (htab);
2184 dyn = htab->elf.dynamic_sections_created;
2185 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
a8735c82 2186 R_SPARC_TLS_GD_{HI22,LO10} needs one if local and two if global. */
22b75d0a 2187 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
d0c9aeb3
DM		 2188 || tls_type == GOT_TLS_IE
2189 || h->type == STT_GNU_IFUNC)
72fbc6e5 2190 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a 2191 else if (tls_type == GOT_TLS_GD)
72fbc6e5 2192 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
a8735c82
EB		 2193 else if ((WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)
2194 /* Even if the symbol isn't dynamic, we may generate a
2195 reloc for the dynamic linker in PIC mode. */
2196 || (h->dynindx == -1
2197 && !h->forced_local
2198 && h->root.type != bfd_link_hash_undefweak
2199 && bfd_link_pic (info)))
2200 /* No dynamic relocations are needed against resolved
2201 undefined weak symbols in an executable. */
2202 && !(h->root.type == bfd_link_hash_undefweak
2203 && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2204 || resolved_to_zero)))
72fbc6e5 2205 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2206 }
2207 else
2208 h->got.offset = (bfd_vma) -1;
2209
190eb1dd 2210 if (h->dyn_relocs == NULL)
22b75d0a
DM		 2211 return TRUE;
2212
2213 /* In the shared -Bsymbolic case, discard space allocated for
2214 dynamic pc-relative relocs against symbols which turn out to be
2215 defined in regular objects. For the normal shared case, discard
2216 space for pc-relative relocs that have become local due to symbol
2217 visibility changes. */
2218
0e1862bb 2219 if (bfd_link_pic (info))
22b75d0a 2220 {
72fbc6e5 2221 if (SYMBOL_CALLS_LOCAL (info, h))
22b75d0a 2222 {
3bf083ed 2223 struct elf_dyn_relocs **pp;
22b75d0a 2224
190eb1dd 2225 for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
22b75d0a
DM		 2226 {
2227 p->count -= p->pc_count;
2228 p->pc_count = 0;
2229 if (p->count == 0)
2230 *pp = p->next;
2231 else
2232 pp = &p->next;
2233 }
2234 }
22d606e9 2235
90c14f0c 2236 if (htab->elf.target_os == is_vxworks)
3348747a 2237 {
3bf083ed 2238 struct elf_dyn_relocs **pp;
3348747a 2239
190eb1dd 2240 for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
3348747a
NS		 2241 {
2242 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2243 *pp = p->next;
2244 else
2245 pp = &p->next;
2246 }
2247 }
2248
22d606e9 2249 /* Also discard relocs on undefined weak syms with non-default
bb1dd176 2250 visibility or in PIE. */
190eb1dd 2251 if (h->dyn_relocs != NULL
22d606e9
AM		 2252 && h->root.type == bfd_link_hash_undefweak)
2253 {
07d6d2b8 2254 /* An undefined weak symbol is never
bb1dd176
QZ		 2255 bound locally in a shared library. */
2256
2257 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
07d6d2b8
AM		 2258 || resolved_to_zero)
2259 {
2260 if (h->non_got_ref)
2261 {
2262 /* Keep dynamic non-GOT/non-PLT relocation so that we
2263 can branch to 0 without PLT. */
2264 struct elf_dyn_relocs **pp;
2265
190eb1dd 2266 for (pp = &h->dyn_relocs; (p = *pp) != NULL;)
07d6d2b8
AM		 2267 if (p->pc_count == 0)
2268 *pp = p->next;
2269 else
2270 {
2271 /* Remove other relocations. */
2272 p->count = p->pc_count;
2273 pp = &p->next;
2274 }
2275
190eb1dd 2276 if (h->dyn_relocs != NULL)
07d6d2b8
AM		 2277 {
2278 /* Make sure undefined weak symbols are output
2279 as dynamic symbols in PIEs for dynamic non-GOT
2280 non-PLT reloations. */
2281 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2282 return FALSE;
2283 }
2284 }
2285 else
190eb1dd 2286 h->dyn_relocs = NULL;
07d6d2b8 2287 }
22d606e9
AM		 2288
2289 /* Make sure undefined weak symbols are output as a dynamic
2290 symbol in PIEs. */
2291 else if (h->dynindx == -1
2292 && !h->forced_local)
2293 {
2294 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2295 return FALSE;
2296 }
2297 }
22b75d0a
DM		 2298 }
2299 else
2300 {
2301 /* For the non-shared case, discard space for relocs against
2302 symbols which turn out to need copy relocs or are not
2303 dynamic. */
2304
bb1dd176 2305 if ((!h->non_got_ref
07d6d2b8
AM		 2306 || (h->root.type == bfd_link_hash_undefweak
2307 && !resolved_to_zero))
22b75d0a
DM		 2308 && ((h->def_dynamic
2309 && !h->def_regular)
2310 || (htab->elf.dynamic_sections_created
2311 && (h->root.type == bfd_link_hash_undefweak
2312 || h->root.type == bfd_link_hash_undefined))))
2313 {
a8735c82
EB		 2314 /* Undefined weak syms won't yet be marked as dynamic. */
2315 if (h->root.type == bfd_link_hash_undefweak
07d6d2b8 2316 && !resolved_to_zero
a8735c82
EB		 2317 && h->dynindx == -1
2318 && !h->forced_local)
22b75d0a
DM		 2319 {
2320 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2321 return FALSE;
2322 }
2323
2324 /* If that succeeded, we know we'll be keeping all the
2325 relocs. */
2326 if (h->dynindx != -1)
2327 goto keep;
2328 }
2329
190eb1dd 2330 h->dyn_relocs = NULL;
22b75d0a
DM		 2331
2332 keep: ;
2333 }
2334
2335 /* Finally, allocate space. */
190eb1dd 2336 for (p = h->dyn_relocs; p != NULL; p = p->next)
22b75d0a
DM		 2337 {
2338 asection *sreloc = elf_section_data (p->sec)->sreloc;
2339 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2340 }
2341
2342 return TRUE;
2343}
2344
d0c9aeb3
DM		 2345/* Allocate space in .plt, .got and associated reloc sections for
2346 local dynamic relocs. */
2347
2348static bfd_boolean
2349allocate_local_dynrelocs (void **slot, void *inf)
2350{
2351 struct elf_link_hash_entry *h
2352 = (struct elf_link_hash_entry *) *slot;
2353
2354 if (h->type != STT_GNU_IFUNC
2355 || !h->def_regular
2356 || !h->ref_regular
2357 || !h->forced_local
2358 || h->root.type != bfd_link_hash_defined)
2359 abort ();
2360
2361 return allocate_dynrelocs (h, inf);
2362}
2363
22b75d0a
DM		 2364/* Return true if the dynamic symbol for a given section should be
2365 omitted when creating a shared library. */
2366
2367bfd_boolean
2368_bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2369 struct bfd_link_info *info,
2370 asection *p)
2371{
2372 /* We keep the .got section symbol so that explicit relocations
2373 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2374 can be turned into relocations against the .got symbol. */
2375 if (strcmp (p->name, ".got") == 0)
2376 return FALSE;
2377
d00dd7dc 2378 return _bfd_elf_omit_section_dynsym_default (output_bfd, info, p);
22b75d0a
DM		 2379}
2380
2381/* Set the sizes of the dynamic sections. */
2382
2383bfd_boolean
2384_bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2385 struct bfd_link_info *info)
2386{
2387 struct _bfd_sparc_elf_link_hash_table *htab;
2388 bfd *dynobj;
2389 asection *s;
2390 bfd *ibfd;
2391
2392 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2393 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 2394 dynobj = htab->elf.dynobj;
2395 BFD_ASSERT (dynobj != NULL);
2396
2397 if (elf_hash_table (info)->dynamic_sections_created)
2398 {
2399 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2400 if (bfd_link_executable (info) && !info->nointerp)
07d6d2b8
AM		 2401 {
2402 s = bfd_get_linker_section (dynobj, ".interp");
2403 BFD_ASSERT (s != NULL);
2404 s->size = htab->dynamic_interpreter_size;
2405 s->contents = (unsigned char *) htab->dynamic_interpreter;
2406 htab->interp = s;
2407 }
22b75d0a
DM		 2408 }
2409
2410 /* Set up .got offsets for local syms, and space for local dynamic
2411 relocs. */
c72f2fb2 2412 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
22b75d0a
DM		 2413 {
2414 bfd_signed_vma *local_got;
2415 bfd_signed_vma *end_local_got;
2416 char *local_tls_type;
2417 bfd_size_type locsymcount;
2418 Elf_Internal_Shdr *symtab_hdr;
2419 asection *srel;
2420
0ffa91dd 2421 if (! is_sparc_elf (ibfd))
22b75d0a
DM		 2422 continue;
2423
2424 for (s = ibfd->sections; s != NULL; s = s->next)
2425 {
3bf083ed 2426 struct elf_dyn_relocs *p;
22b75d0a 2427
6edfbbad 2428 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
22b75d0a
DM		 2429 {
2430 if (!bfd_is_abs_section (p->sec)
2431 && bfd_is_abs_section (p->sec->output_section))
2432 {
2433 /* Input section has been discarded, either because
2434 it is a copy of a linkonce section or due to
2435 linker script /DISCARD/, so we'll be discarding
2436 the relocs too. */
2437 }
90c14f0c 2438 else if (htab->elf.target_os == is_vxworks
3348747a
NS		 2439 && strcmp (p->sec->output_section->name,
2440 ".tls_vars") == 0)
2441 {
2442 /* Relocations in vxworks .tls_vars sections are
2443 handled specially by the loader. */
2444 }
22b75d0a
DM		 2445 else if (p->count != 0)
2446 {
2447 srel = elf_section_data (p->sec)->sreloc;
d0c9aeb3
DM		 2448 if (!htab->elf.dynamic_sections_created)
2449 srel = htab->elf.irelplt;
22b75d0a
DM		 2450 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2451 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
f0f07ad1
L		 2452 {
2453 info->flags |= DF_TEXTREL;
871b3ab2 2454 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
f0f07ad1
L		 2455 p->sec->owner, p->sec);
2456 }
22b75d0a
DM		 2457 }
2458 }
2459 }
2460
2461 local_got = elf_local_got_refcounts (ibfd);
2462 if (!local_got)
2463 continue;
2464
0ffa91dd 2465 symtab_hdr = &elf_symtab_hdr (ibfd);
22b75d0a
DM		 2466 locsymcount = symtab_hdr->sh_info;
2467 end_local_got = local_got + locsymcount;
2468 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
72fbc6e5
DM		 2469 s = htab->elf.sgot;
2470 srel = htab->elf.srelgot;
22b75d0a
DM		 2471 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2472 {
2473 if (*local_got > 0)
2474 {
2475 *local_got = s->size;
2476 s->size += SPARC_ELF_WORD_BYTES (htab);
2477 if (*local_tls_type == GOT_TLS_GD)
2478 s->size += SPARC_ELF_WORD_BYTES (htab);
0e1862bb 2479 if (bfd_link_pic (info)
22b75d0a
DM		 2480 || *local_tls_type == GOT_TLS_GD
2481 || *local_tls_type == GOT_TLS_IE)
2482 srel->size += SPARC_ELF_RELA_BYTES (htab);
2483 }
2484 else
2485 *local_got = (bfd_vma) -1;
2486 }
2487 }
2488
2489 if (htab->tls_ldm_got.refcount > 0)
2490 {
2491 /* Allocate 2 got entries and 1 dynamic reloc for
2492 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
72fbc6e5
DM		 2493 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2494 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2495 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2496 }
2497 else
2498 htab->tls_ldm_got.offset = -1;
2499
2500 /* Allocate global sym .plt and .got entries, and space for global
2501 sym dynamic relocs. */
2c3fc389 2502 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
22b75d0a 2503
d0c9aeb3
DM		 2504 /* Allocate .plt and .got entries, and space for local symbols. */
2505 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2506
0fc9967d 2507 if (! ABI_64_P (output_bfd)
90c14f0c 2508 && htab->elf.target_os != is_vxworks
22b75d0a
DM		 2509 && elf_hash_table (info)->dynamic_sections_created)
2510 {
0fc9967d
JM		 2511 /* Make space for the trailing nop in .plt. */
2512 if (htab->elf.splt->size > 0)
2513 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
22b75d0a
DM		 2514
2515 /* If the .got section is more than 0x1000 bytes, we add
2516 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
0fc9967d
JM		 2517 bit relocations have a greater chance of working.
2518
2519 FIXME: Make this optimization work for 64-bit too. */
72fbc6e5 2520 if (htab->elf.sgot->size >= 0x1000
22b75d0a
DM		 2521 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2522 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2523 }
2524
2525 /* The check_relocs and adjust_dynamic_symbol entry points have
2526 determined the sizes of the various dynamic sections. Allocate
2527 memory for them. */
2528 for (s = dynobj->sections; s != NULL; s = s->next)
2529 {
22b75d0a
DM		 2530 if ((s->flags & SEC_LINKER_CREATED) == 0)
2531 continue;
2532
72fbc6e5
DM		 2533 if (s == htab->elf.splt
2534 || s == htab->elf.sgot
9d19e4fd 2535 || s == htab->elf.sdynbss
5474d94f 2536 || s == htab->elf.sdynrelro
d0c9aeb3 2537 || s == htab->elf.iplt
72fbc6e5 2538 || s == htab->elf.sgotplt)
22b75d0a 2539 {
c456f082
AM		 2540 /* Strip this section if we don't need it; see the
2541 comment below. */
2542 }
0112cd26 2543 else if (CONST_STRNEQ (s->name, ".rela"))
c456f082
AM		 2544 {
2545 if (s->size != 0)
22b75d0a
DM		 2546 {
2547 /* We use the reloc_count field as a counter if we need
2548 to copy relocs into the output file. */
2549 s->reloc_count = 0;
2550 }
2551 }
c456f082 2552 else
22b75d0a 2553 {
c456f082 2554 /* It's not one of our sections. */
22b75d0a
DM		 2555 continue;
2556 }
2557
c456f082 2558 if (s->size == 0)
22b75d0a 2559 {
c456f082
AM		 2560 /* If we don't need this section, strip it from the
2561 output file. This is mostly to handle .rela.bss and
2562 .rela.plt. We must create both sections in
2563 create_dynamic_sections, because they must be created
2564 before the linker maps input sections to output
2565 sections. The linker does that before
2566 adjust_dynamic_symbol is called, and it is that
2567 function which decides whether anything needs to go
2568 into these sections. */
8423293d 2569 s->flags |= SEC_EXCLUDE;
22b75d0a
DM		 2570 continue;
2571 }
2572
c456f082
AM		 2573 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2574 continue;
2575
22b75d0a
DM		 2576 /* Allocate memory for the section contents. Zero the memory
2577 for the benefit of .rela.plt, which has 4 unused entries
2578 at the beginning, and we don't want garbage. */
2579 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
c456f082 2580 if (s->contents == NULL)
22b75d0a
DM		 2581 return FALSE;
2582 }
2583
2584 if (elf_hash_table (info)->dynamic_sections_created)
2585 {
2586 /* Add some entries to the .dynamic section. We fill in the
2587 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2588 must add the entries now so that we get the correct size for
2589 the .dynamic section. The DT_DEBUG entry is filled in by the
2590 dynamic linker and used by the debugger. */
2591#define add_dynamic_entry(TAG, VAL) \
2592 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2593
3084d7a2
L		 2594 if (!_bfd_elf_maybe_vxworks_add_dynamic_tags (output_bfd, info,
2595 TRUE))
22b75d0a
DM		 2596 return FALSE;
2597
22b75d0a
DM		 2598 if (ABI_64_P (output_bfd))
2599 {
2600 int reg;
2601 struct _bfd_sparc_elf_app_reg * app_regs;
2602 struct elf_strtab_hash *dynstr;
2603 struct elf_link_hash_table *eht = elf_hash_table (info);
2604
2605 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2606 entries if needed. */
2607 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2608 dynstr = eht->dynstr;
2609
2610 for (reg = 0; reg < 4; reg++)
2611 if (app_regs [reg].name != NULL)
2612 {
2613 struct elf_link_local_dynamic_entry *entry, *e;
2614
2615 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2616 return FALSE;
2617
2618 entry = (struct elf_link_local_dynamic_entry *)
2619 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2620 if (entry == NULL)
2621 return FALSE;
2622
2623 /* We cheat here a little bit: the symbol will not be local, so we
2624 put it at the end of the dynlocal linked list. We will fix it
2625 later on, as we have to fix other fields anyway. */
2626 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2627 entry->isym.st_size = 0;
2628 if (*app_regs [reg].name != '\0')
2629 entry->isym.st_name
2630 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2631 else
2632 entry->isym.st_name = 0;
2633 entry->isym.st_other = 0;
2634 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2635 STT_REGISTER);
2636 entry->isym.st_shndx = app_regs [reg].shndx;
35fc36a8 2637 entry->isym.st_target_internal = 0;
22b75d0a
DM		 2638 entry->next = NULL;
2639 entry->input_bfd = output_bfd;
2640 entry->input_indx = -1;
2641
2642 if (eht->dynlocal == NULL)
2643 eht->dynlocal = entry;
2644 else
2645 {
2646 for (e = eht->dynlocal; e->next; e = e->next)
2647 ;
2648 e->next = entry;
2649 }
2650 eht->dynsymcount++;
2651 }
2652 }
2653 }
2654#undef add_dynamic_entry
2655
2656 return TRUE;
2657}
2658\f
2659bfd_boolean
2660_bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2661{
f592407e
AM		 2662 if (!sec->used_by_bfd)
2663 {
2664 struct _bfd_sparc_elf_section_data *sdata;
986f0783 2665 size_t amt = sizeof (*sdata);
22b75d0a 2666
f592407e
AM		 2667 sdata = bfd_zalloc (abfd, amt);
2668 if (sdata == NULL)
2669 return FALSE;
2670 sec->used_by_bfd = sdata;
2671 }
22b75d0a
DM		 2672
2673 return _bfd_elf_new_section_hook (abfd, sec);
2674}
2675
2676bfd_boolean
2677_bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2678 struct bfd_section *section,
2679 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2680 bfd_boolean *again)
2681{
0e1862bb 2682 if (bfd_link_relocatable (link_info))
c8a1f254
NS		 2683 (*link_info->callbacks->einfo)
2684 (_("%P%F: --relax and -r may not be used together\n"));
2685
22b75d0a
DM		 2686 *again = FALSE;
2687 sec_do_relax (section) = 1;
2688 return TRUE;
2689}
2690\f
2691/* Return the base VMA address which should be subtracted from real addresses
2692 when resolving @dtpoff relocation.
2693 This is PT_TLS segment p_vaddr. */
2694
2695static bfd_vma
2696dtpoff_base (struct bfd_link_info *info)
2697{
2698 /* If tls_sec is NULL, we should have signalled an error already. */
2699 if (elf_hash_table (info)->tls_sec == NULL)
2700 return 0;
2701 return elf_hash_table (info)->tls_sec->vma;
2702}
2703
2704/* Return the relocation value for @tpoff relocation
2705 if STT_TLS virtual address is ADDRESS. */
2706
2707static bfd_vma
2708tpoff (struct bfd_link_info *info, bfd_vma address)
2709{
2710 struct elf_link_hash_table *htab = elf_hash_table (info);
1360ba76
RO		 2711 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
2712 bfd_vma static_tls_size;
22b75d0a
DM		 2713
2714 /* If tls_sec is NULL, we should have signalled an error already. */
2715 if (htab->tls_sec == NULL)
2716 return 0;
1360ba76
RO		 2717
2718 /* Consider special static TLS alignment requirements. */
2719 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
2720 return address - static_tls_size - htab->tls_sec->vma;
22b75d0a
DM		 2721}
2722
00c50991
DM		 2723/* Return the relocation value for a %gdop relocation. */
2724
2725static bfd_vma
2726gdopoff (struct bfd_link_info *info, bfd_vma address)
2727{
2728 struct elf_link_hash_table *htab = elf_hash_table (info);
2729 bfd_vma got_base;
2730
2731 got_base = (htab->hgot->root.u.def.value
2732 + htab->hgot->root.u.def.section->output_offset
2733 + htab->hgot->root.u.def.section->output_section->vma);
2734
2735 return address - got_base;
2736}
2737
5b86074c
AM		 2738/* Return whether H is local and its ADDRESS is within 4G of
2739 _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
2740 sethi, xor sequence. */
2741
2742static bfd_boolean
2743gdop_relative_offset_ok (struct bfd_link_info *info,
2744 struct elf_link_hash_entry *h,
2745 bfd_vma address ATTRIBUTE_UNUSED)
2746{
2747 if (!SYMBOL_REFERENCES_LOCAL (info, h))
2748 return FALSE;
2749 /* If H is undefined, ADDRESS will be zero. We can't allow a
2750 relative offset to "zero" when producing PIEs or shared libs.
2751 Note that to get here with an undefined symbol it must also be
2752 hidden or internal visibility. */
2753 if (bfd_link_pic (info)
2754 && h != NULL
2755 && (h->root.type == bfd_link_hash_undefweak
2756 || h->root.type == bfd_link_hash_undefined))
2757 return FALSE;
2758#ifdef BFD64
2759 return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
2760#else
2761 return TRUE;
2762#endif
2763}
2764
22b75d0a
DM		 2765/* Relocate a SPARC ELF section. */
2766
2767bfd_boolean
ab96bf03
AM		 2768_bfd_sparc_elf_relocate_section (bfd *output_bfd,
2769 struct bfd_link_info *info,
2770 bfd *input_bfd,
2771 asection *input_section,
2772 bfd_byte *contents,
2773 Elf_Internal_Rela *relocs,
2774 Elf_Internal_Sym *local_syms,
2775 asection **local_sections)
22b75d0a
DM		 2776{
2777 struct _bfd_sparc_elf_link_hash_table *htab;
2778 Elf_Internal_Shdr *symtab_hdr;
2779 struct elf_link_hash_entry **sym_hashes;
2780 bfd_vma *local_got_offsets;
2781 bfd_vma got_base;
2782 asection *sreloc;
2783 Elf_Internal_Rela *rel;
2784 Elf_Internal_Rela *relend;
2785 int num_relocs;
3348747a 2786 bfd_boolean is_vxworks_tls;
22b75d0a 2787
22b75d0a 2788 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2789 BFD_ASSERT (htab != NULL);
0ffa91dd 2790 symtab_hdr = &elf_symtab_hdr (input_bfd);
22b75d0a
DM		 2791 sym_hashes = elf_sym_hashes (input_bfd);
2792 local_got_offsets = elf_local_got_offsets (input_bfd);
2793
2794 if (elf_hash_table (info)->hgot == NULL)
2795 got_base = 0;
2796 else
2797 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2798
2799 sreloc = elf_section_data (input_section)->sreloc;
3348747a
NS		 2800 /* We have to handle relocations in vxworks .tls_vars sections
2801 specially, because the dynamic loader is 'weird'. */
90c14f0c
L		 2802 is_vxworks_tls = (htab->elf.target_os == is_vxworks
2803 && bfd_link_pic (info)
3348747a
NS		 2804 && !strcmp (input_section->output_section->name,
2805 ".tls_vars"));
22b75d0a
DM		 2806
2807 rel = relocs;
2808 if (ABI_64_P (output_bfd))
d4730f92 2809 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
22b75d0a
DM		 2810 else
2811 num_relocs = input_section->reloc_count;
2812 relend = relocs + num_relocs;
2813 for (; rel < relend; rel++)
2814 {
2815 int r_type, tls_type;
2816 reloc_howto_type *howto;
2817 unsigned long r_symndx;
2818 struct elf_link_hash_entry *h;
bb1dd176 2819 struct _bfd_sparc_elf_link_hash_entry *eh;
22b75d0a
DM		 2820 Elf_Internal_Sym *sym;
2821 asection *sec;
2822 bfd_vma relocation, off;
2823 bfd_reloc_status_type r;
2824 bfd_boolean is_plt = FALSE;
2825 bfd_boolean unresolved_reloc;
bb1dd176 2826 bfd_boolean resolved_to_zero;
ec1acaba 2827 bfd_boolean relative_reloc;
22b75d0a
DM		 2828
2829 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2830 if (r_type == R_SPARC_GNU_VTINHERIT
2831 || r_type == R_SPARC_GNU_VTENTRY)
2832 continue;
2833
2834 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2835 {
2836 bfd_set_error (bfd_error_bad_value);
2837 return FALSE;
2838 }
22b75d0a 2839
c20c30f6 2840 howto = _bfd_sparc_elf_howto_table + r_type;
22b75d0a
DM		 2841 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2842 h = NULL;
2843 sym = NULL;
2844 sec = NULL;
2845 unresolved_reloc = FALSE;
2846 if (r_symndx < symtab_hdr->sh_info)
2847 {
2848 sym = local_syms + r_symndx;
2849 sec = local_sections[r_symndx];
2850 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
d0c9aeb3 2851
0e1862bb 2852 if (!bfd_link_relocatable (info)
d0c9aeb3
DM		 2853 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2854 {
2855 /* Relocate against local STT_GNU_IFUNC symbol. */
2856 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
2857 rel, FALSE);
2858 if (h == NULL)
2859 abort ();
2860
68ffbac6 2861 /* Set STT_GNU_IFUNC symbol value. */
d0c9aeb3
DM		 2862 h->root.u.def.value = sym->st_value;
2863 h->root.u.def.section = sec;
2864 }
22b75d0a
DM		 2865 }
2866 else
2867 {
62d887d4 2868 bfd_boolean warned, ignored;
22b75d0a
DM		 2869
2870 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2871 r_symndx, symtab_hdr, sym_hashes,
2872 h, sec, relocation,
62d887d4 2873 unresolved_reloc, warned, ignored);
22b75d0a
DM		 2874 if (warned)
2875 {
2876 /* To avoid generating warning messages about truncated
2877 relocations, set the relocation's address to be the same as
2878 the start of this section. */
2879 if (input_section->output_section != NULL)
2880 relocation = input_section->output_section->vma;
2881 else
2882 relocation = 0;
2883 }
2884 }
2885
dbaa2011 2886 if (sec != NULL && discarded_section (sec))
e4067dbb 2887 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2888 rel, 1, relend, howto, 0, contents);
ab96bf03 2889
0e1862bb 2890 if (bfd_link_relocatable (info))
ab96bf03
AM		 2891 continue;
2892
d0c9aeb3
DM		 2893 if (h != NULL
2894 && h->type == STT_GNU_IFUNC
2895 && h->def_regular)
2896 {
2897 asection *plt_sec;
2898 const char *name;
2899
2900 if ((input_section->flags & SEC_ALLOC) == 0
2901 || h->plt.offset == (bfd_vma) -1)
f657f8c4
NC		 2902 {
2903 /* If this is a SHT_NOTE section without SHF_ALLOC, treat
2904 STT_GNU_IFUNC symbol as STT_FUNC. */
2905 if (elf_section_type (input_section) == SHT_NOTE)
2906 goto skip_ifunc;
2907 abort ();
2908 }
d0c9aeb3
DM		 2909
2910 plt_sec = htab->elf.splt;
2911 if (! plt_sec)
2912 plt_sec =htab->elf.iplt;
2913
2914 switch (r_type)
2915 {
00c50991
DM		 2916 case R_SPARC_GOTDATA_OP:
2917 continue;
2918
d0c9aeb3
DM		 2919 case R_SPARC_GOTDATA_OP_HIX22:
2920 case R_SPARC_GOTDATA_OP_LOX10:
00c50991
DM		 2921 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
2922 ? R_SPARC_GOT22
2923 : R_SPARC_GOT10);
2924 howto = _bfd_sparc_elf_howto_table + r_type;
2925 /* Fall through. */
2926
d0c9aeb3
DM		 2927 case R_SPARC_GOT10:
2928 case R_SPARC_GOT13:
2929 case R_SPARC_GOT22:
2930 if (htab->elf.sgot == NULL)
2931 abort ();
2932 off = h->got.offset;
2933 if (off == (bfd_vma) -1)
2934 abort();
2935 relocation = htab->elf.sgot->output_offset + off - got_base;
2936 goto do_relocation;
2937
2938 case R_SPARC_WPLT30:
2939 case R_SPARC_WDISP30:
2940 relocation = (plt_sec->output_section->vma
2941 + plt_sec->output_offset + h->plt.offset);
2942 goto do_relocation;
2943
2944 case R_SPARC_32:
2945 case R_SPARC_64:
0e1862bb 2946 if (bfd_link_pic (info) && h->non_got_ref)
d0c9aeb3
DM		 2947 {
2948 Elf_Internal_Rela outrel;
2949 bfd_vma offset;
2950
2951 offset = _bfd_elf_section_offset (output_bfd, info,
2952 input_section,
2953 rel->r_offset);
2954 if (offset == (bfd_vma) -1
2955 || offset == (bfd_vma) -2)
2956 abort();
2957
2958 outrel.r_offset = (input_section->output_section->vma
2959 + input_section->output_offset
2960 + offset);
2961
2962 if (h->dynindx == -1
2963 || h->forced_local
0e1862bb 2964 || bfd_link_executable (info))
d0c9aeb3
DM		 2965 {
2966 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
2967 0, R_SPARC_IRELATIVE);
2968 outrel.r_addend = relocation + rel->r_addend;
2969 }
2970 else
2971 {
2972 if (h->dynindx == -1)
2973 abort();
2974 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
2975 outrel.r_addend = rel->r_addend;
2976 }
2977
2978 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
2979 continue;
2980 }
2981
2982 relocation = (plt_sec->output_section->vma
2983 + plt_sec->output_offset + h->plt.offset);
2984 goto do_relocation;
2985
2986 case R_SPARC_HI22:
2987 case R_SPARC_LO10:
2988 /* We should only see such relocs in static links. */
0e1862bb 2989 if (bfd_link_pic (info))
d0c9aeb3
DM		 2990 abort();
2991 relocation = (plt_sec->output_section->vma
2992 + plt_sec->output_offset + h->plt.offset);
2993 goto do_relocation;
2994
2995 default:
2996 if (h->root.root.string)
2997 name = h->root.root.string;
2998 else
2999 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3000 NULL);
4eca0228 3001 _bfd_error_handler
695344c0 3002 /* xgettext:c-format */
871b3ab2 3003 (_("%pB: relocation %s against STT_GNU_IFUNC "
d0c9aeb3
DM		 3004 "symbol `%s' isn't handled by %s"), input_bfd,
3005 _bfd_sparc_elf_howto_table[r_type].name,
3006 name, __FUNCTION__);
3007 bfd_set_error (bfd_error_bad_value);
3008 return FALSE;
3009 }
3010 }
3011
f657f8c4 3012 skip_ifunc:
bb1dd176 3013 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
c20c30f6 3014 resolved_to_zero = eh && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
bb1dd176 3015
22b75d0a
DM		 3016 switch (r_type)
3017 {
739f7f82
DM		 3018 case R_SPARC_GOTDATA_OP_HIX22:
3019 case R_SPARC_GOTDATA_OP_LOX10:
5b86074c 3020 if (gdop_relative_offset_ok (info, h, relocation))
cc133f9f
JC		 3021 {
3022 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3023 ? R_SPARC_GOTDATA_HIX22
3024 : R_SPARC_GOTDATA_LOX10);
3025 howto = _bfd_sparc_elf_howto_table + r_type;
3026 }
00c50991
DM		 3027 break;
3028
3029 case R_SPARC_GOTDATA_OP:
5b86074c 3030 if (gdop_relative_offset_ok (info, h, relocation))
00c50991
DM		 3031 {
3032 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3033
3034 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3035 relocation = 0x80000000 | (insn & 0x3e07c01f);
3036 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
a8735c82
EB		 3037
3038 /* If the symbol is global but not dynamic, an .rela.* slot has
f8745e1c
EB		 3039 been allocated for it in the GOT so output R_SPARC_NONE here,
3040 if it isn't also subject to another, old-style GOT relocation.
3041 See also the handling of these GOT relocations just below. */
a8735c82
EB		 3042 if (h != NULL
3043 && h->dynindx == -1
3044 && !h->forced_local
3045 && h->root.type != bfd_link_hash_undefweak
f8745e1c 3046 && !eh->has_old_style_got_reloc
a8735c82
EB		 3047 && (h->got.offset & 1) == 0
3048 && bfd_link_pic (info))
3049 {
3050 asection *s = htab->elf.srelgot;
3051 Elf_Internal_Rela outrel;
3052
3053 BFD_ASSERT (s != NULL);
3054
3055 memset (&outrel, 0, sizeof outrel);
3056 sparc_elf_append_rela (output_bfd, s, &outrel);
3057 h->got.offset |= 1;
3058 }
00c50991
DM		 3059 }
3060 continue;
3061 }
3062
3063 switch (r_type)
3064 {
3065 case R_SPARC_GOTDATA_HIX22:
3066 case R_SPARC_GOTDATA_LOX10:
3067 relocation = gdopoff (info, relocation);
3068 break;
739f7f82 3069
cc133f9f
JC		 3070 case R_SPARC_GOTDATA_OP_HIX22:
3071 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 3072 case R_SPARC_GOT10:
3073 case R_SPARC_GOT13:
3074 case R_SPARC_GOT22:
3075 /* Relocation is to the entry for this symbol in the global
3076 offset table. */
72fbc6e5 3077 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3078 abort ();
3079
ec1acaba 3080 relative_reloc = FALSE;
22b75d0a
DM		 3081 if (h != NULL)
3082 {
3083 bfd_boolean dyn;
3084
3085 off = h->got.offset;
3086 BFD_ASSERT (off != (bfd_vma) -1);
3087 dyn = elf_hash_table (info)->dynamic_sections_created;
3088
0e1862bb
L		 3089 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3090 bfd_link_pic (info),
3091 h)
3092 || (bfd_link_pic (info)
72fbc6e5 3093 && SYMBOL_REFERENCES_LOCAL (info, h)))
22b75d0a
DM		 3094 {
3095 /* This is actually a static link, or it is a
3096 -Bsymbolic link and the symbol is defined
3097 locally, or the symbol was forced to be local
3098 because of a version file. We must initialize
3099 this entry in the global offset table. Since the
3100 offset must always be a multiple of 8 for 64-bit
3101 and 4 for 32-bit, we use the least significant bit
3102 to record whether we have initialized it already.
3103
3104 When doing a dynamic link, we create a .rela.got
3105 relocation entry to initialize the value. This
3106 is done in the finish_dynamic_symbol routine. */
3107 if ((off & 1) != 0)
3108 off &= ~1;
3109 else
3110 {
a8735c82
EB		 3111 /* If this symbol isn't dynamic in PIC mode, treat it
3112 like a local symbol in PIC mode below. */
ec1acaba
EB		 3113 if (h->dynindx == -1
3114 && !h->forced_local
3115 && h->root.type != bfd_link_hash_undefweak
3116 && bfd_link_pic (info))
a8735c82 3117 relative_reloc = TRUE;
a9d44aad
AM		 3118 else
3119 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3120 htab->elf.sgot->contents + off);
3121 h->got.offset |= 1;
22b75d0a
DM		 3122 }
3123 }
3124 else
3125 unresolved_reloc = FALSE;
3126 }
3127 else
3128 {
3129 BFD_ASSERT (local_got_offsets != NULL
3130 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3131
3132 off = local_got_offsets[r_symndx];
3133
3134 /* The offset must always be a multiple of 8 on 64-bit and
3135 4 on 32-bit. We use the least significant bit to record
3136 whether we have already processed this entry. */
3137 if ((off & 1) != 0)
3138 off &= ~1;
3139 else
3140 {
a8735c82
EB		 3141 /* For a local symbol in PIC mode, we need to generate a
3142 R_SPARC_RELATIVE reloc for the dynamic linker. */
0e1862bb 3143 if (bfd_link_pic (info))
a9d44aad
AM		 3144 relative_reloc = TRUE;
3145 else
3146 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3147 htab->elf.sgot->contents + off);
22b75d0a
DM		 3148 local_got_offsets[r_symndx] |= 1;
3149 }
3150 }
ec1acaba
EB		 3151
3152 if (relative_reloc)
3153 {
a8735c82 3154 asection *s = htab->elf.srelgot;
ec1acaba
EB		 3155 Elf_Internal_Rela outrel;
3156
ec1acaba
EB		 3157 BFD_ASSERT (s != NULL);
3158
3159 outrel.r_offset = (htab->elf.sgot->output_section->vma
3160 + htab->elf.sgot->output_offset
3161 + off);
3162 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3163 0, R_SPARC_RELATIVE);
3164 outrel.r_addend = relocation;
ec1acaba 3165 sparc_elf_append_rela (output_bfd, s, &outrel);
a9d44aad
AM		 3166 /* Versions of glibc ld.so at least up to 2.26 wrongly
3167 add the section contents to the value calculated for
3168 a RELATIVE reloc. Zero the contents to work around
3169 this bug. */
3170 relocation = 0;
3171 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3172 htab->elf.sgot->contents + off);
ec1acaba
EB		 3173 }
3174
72fbc6e5 3175 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3176 break;
3177
3178 case R_SPARC_PLT32:
3179 case R_SPARC_PLT64:
3180 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3181 {
3182 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3183 goto r_sparc_plt32;
3184 }
3185 /* Fall through. */
3186
3187 case R_SPARC_WPLT30:
3188 case R_SPARC_HIPLT22:
3189 case R_SPARC_LOPLT10:
3190 case R_SPARC_PCPLT32:
3191 case R_SPARC_PCPLT22:
3192 case R_SPARC_PCPLT10:
3193 r_sparc_wplt30:
3194 /* Relocation is to the entry for this symbol in the
3195 procedure linkage table. */
3196
3197 if (! ABI_64_P (output_bfd))
3198 {
3199 /* The Solaris native assembler will generate a WPLT30 reloc
3200 for a local symbol if you assemble a call from one
3201 section to another when using -K pic. We treat it as
3202 WDISP30. */
3203 if (h == NULL)
3204 break;
3205 }
68ffbac6 3206 /* PR 7027: We need similar behaviour for 64-bit binaries. */
af1fb11f
NC		 3207 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3208 break;
22b75d0a
DM		 3209 else
3210 {
3211 BFD_ASSERT (h != NULL);
3212 }
3213
72fbc6e5 3214 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
22b75d0a
DM		 3215 {
3216 /* We didn't make a PLT entry for this symbol. This
3217 happens when statically linking PIC code, or when
3218 using -Bsymbolic. */
3219 break;
3220 }
3221
72fbc6e5
DM		 3222 relocation = (htab->elf.splt->output_section->vma
3223 + htab->elf.splt->output_offset
22b75d0a
DM		 3224 + h->plt.offset);
3225 unresolved_reloc = FALSE;
3226 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3227 {
3228 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3229 is_plt = TRUE;
3230 goto r_sparc_plt32;
3231 }
3232 break;
3233
3234 case R_SPARC_PC10:
3235 case R_SPARC_PC22:
3236 case R_SPARC_PC_HH22:
3237 case R_SPARC_PC_HM10:
3238 case R_SPARC_PC_LM22:
3239 if (h != NULL
3240 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3241 break;
3242 /* Fall through. */
3243 case R_SPARC_DISP8:
3244 case R_SPARC_DISP16:
3245 case R_SPARC_DISP32:
3246 case R_SPARC_DISP64:
3247 case R_SPARC_WDISP30:
3248 case R_SPARC_WDISP22:
3249 case R_SPARC_WDISP19:
3250 case R_SPARC_WDISP16:
2615994e 3251 case R_SPARC_WDISP10:
22b75d0a
DM		 3252 case R_SPARC_8:
3253 case R_SPARC_16:
3254 case R_SPARC_32:
3255 case R_SPARC_HI22:
3256 case R_SPARC_22:
3257 case R_SPARC_13:
3258 case R_SPARC_LO10:
3259 case R_SPARC_UA16:
3260 case R_SPARC_UA32:
3261 case R_SPARC_10:
3262 case R_SPARC_11:
3263 case R_SPARC_64:
3264 case R_SPARC_OLO10:
3265 case R_SPARC_HH22:
3266 case R_SPARC_HM10:
3267 case R_SPARC_LM22:
3268 case R_SPARC_7:
3269 case R_SPARC_5:
3270 case R_SPARC_6:
3271 case R_SPARC_HIX22:
3272 case R_SPARC_LOX10:
3273 case R_SPARC_H44:
3274 case R_SPARC_M44:
3275 case R_SPARC_L44:
2615994e 3276 case R_SPARC_H34:
22b75d0a
DM		 3277 case R_SPARC_UA64:
3278 r_sparc_plt32:
c20c30f6 3279 if ((input_section->flags & SEC_ALLOC) == 0 || is_vxworks_tls)
22b75d0a
DM		 3280 break;
3281
07d6d2b8
AM		 3282 /* Copy dynamic function pointer relocations. Don't generate
3283 dynamic relocations against resolved undefined weak symbols
3284 in PIE. */
0e1862bb 3285 if ((bfd_link_pic (info)
22b75d0a 3286 && (h == NULL
a8735c82
EB		 3287 || !(h->root.type == bfd_link_hash_undefweak
3288 && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
3289 || resolved_to_zero)))
22b75d0a 3290 && (! howto->pc_relative
72fbc6e5 3291 || !SYMBOL_CALLS_LOCAL (info, h)))
0e1862bb 3292 || (!bfd_link_pic (info)
22b75d0a
DM		 3293 && h != NULL
3294 && h->dynindx != -1
3295 && !h->non_got_ref
3296 && ((h->def_dynamic
3297 && !h->def_regular)
bb1dd176 3298 || (h->root.type == bfd_link_hash_undefweak
07d6d2b8 3299 && !resolved_to_zero)
22b75d0a
DM		 3300 || h->root.type == bfd_link_hash_undefined)))
3301 {
3302 Elf_Internal_Rela outrel;
3303 bfd_boolean skip, relocate = FALSE;
3304
3305 /* When generating a shared object, these relocations
3306 are copied into the output file to be resolved at run
3307 time. */
3308
3309 BFD_ASSERT (sreloc != NULL);
3310
3311 skip = FALSE;
3312
3313 outrel.r_offset =
3314 _bfd_elf_section_offset (output_bfd, info, input_section,
3315 rel->r_offset);
3316 if (outrel.r_offset == (bfd_vma) -1)
3317 skip = TRUE;
3318 else if (outrel.r_offset == (bfd_vma) -2)
3319 skip = TRUE, relocate = TRUE;
3320 outrel.r_offset += (input_section->output_section->vma
3321 + input_section->output_offset);
3322
3323 /* Optimize unaligned reloc usage now that we know where
3324 it finally resides. */
3325 switch (r_type)
3326 {
3327 case R_SPARC_16:
3328 if (outrel.r_offset & 1)
3329 r_type = R_SPARC_UA16;
3330 break;
3331 case R_SPARC_UA16:
3332 if (!(outrel.r_offset & 1))
3333 r_type = R_SPARC_16;
3334 break;
3335 case R_SPARC_32:
3336 if (outrel.r_offset & 3)
3337 r_type = R_SPARC_UA32;
3338 break;
3339 case R_SPARC_UA32:
3340 if (!(outrel.r_offset & 3))
3341 r_type = R_SPARC_32;
3342 break;
3343 case R_SPARC_64:
3344 if (outrel.r_offset & 7)
3345 r_type = R_SPARC_UA64;
3346 break;
3347 case R_SPARC_UA64:
3348 if (!(outrel.r_offset & 7))
3349 r_type = R_SPARC_64;
3350 break;
07d6d2b8 3351 case R_SPARC_DISP8:
22b75d0a 3352 case R_SPARC_DISP16:
07d6d2b8
AM		 3353 case R_SPARC_DISP32:
3354 case R_SPARC_DISP64:
22b75d0a
DM		 3355 /* If the symbol is not dynamic, we should not keep
3356 a dynamic relocation. But an .rela.* slot has been
3357 allocated for it, output R_SPARC_NONE.
3358 FIXME: Add code tracking needed dynamic relocs as
3359 e.g. i386 has. */
3360 if (h->dynindx == -1)
3361 skip = TRUE, relocate = TRUE;
3362 break;
3363 }
3364
3365 if (skip)
3366 memset (&outrel, 0, sizeof outrel);
3367 /* h->dynindx may be -1 if the symbol was marked to
3368 become local. */
886a2506
NC		 3369 else if (h != NULL
3370 && h->dynindx != -1
3371 && (_bfd_sparc_elf_howto_table[r_type].pc_relative
0e1862bb 3372 || !bfd_link_pic (info)
72fbc6e5 3373 || !SYMBOLIC_BIND (info, h)
22b75d0a
DM		 3374 || !h->def_regular))
3375 {
22b75d0a
DM		 3376 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3377 outrel.r_addend = rel->r_addend;
3378 }
3379 else
3380 {
7160c10d
JC		 3381 if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3382 || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
22b75d0a
DM		 3383 {
3384 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3385 0, R_SPARC_RELATIVE);
3386 outrel.r_addend = relocation + rel->r_addend;
3387 }
3388 else
3389 {
3390 long indx;
3391
74541ad4
AM		 3392 outrel.r_addend = relocation + rel->r_addend;
3393
22b75d0a 3394 if (is_plt)
72fbc6e5 3395 sec = htab->elf.splt;
22b75d0a
DM		 3396
3397 if (bfd_is_abs_section (sec))
3398 indx = 0;
3399 else if (sec == NULL || sec->owner == NULL)
3400 {
3401 bfd_set_error (bfd_error_bad_value);
3402 return FALSE;
3403 }
3404 else
3405 {
3406 asection *osec;
3407
74541ad4
AM		 3408 /* We are turning this relocation into one
3409 against a section symbol. It would be
3410 proper to subtract the symbol's value,
3411 osec->vma, from the emitted reloc addend,
3412 but ld.so expects buggy relocs. */
22b75d0a
DM		 3413 osec = sec->output_section;
3414 indx = elf_section_data (osec)->dynindx;
3415
74541ad4
AM		 3416 if (indx == 0)
3417 {
3418 osec = htab->elf.text_index_section;
3419 indx = elf_section_data (osec)->dynindx;
3420 }
3421
22b75d0a
DM		 3422 /* FIXME: we really should be able to link non-pic
3423 shared libraries. */
3424 if (indx == 0)
3425 {
3426 BFD_FAIL ();
4eca0228 3427 _bfd_error_handler
871b3ab2 3428 (_("%pB: probably compiled without -fPIC?"),
22b75d0a
DM		 3429 input_bfd);
3430 bfd_set_error (bfd_error_bad_value);
3431 return FALSE;
3432 }
3433 }
3434
74541ad4
AM		 3435 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3436 r_type);
22b75d0a
DM		 3437 }
3438 }
3439
39817122 3440 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3441
3442 /* This reloc will be computed at runtime, so there's no
3443 need to do anything now. */
3444 if (! relocate)
3445 continue;
3446 }
3447 break;
3448
3449 case R_SPARC_TLS_GD_HI22:
22b75d0a
DM		 3450 case R_SPARC_TLS_GD_LO10:
3451 case R_SPARC_TLS_IE_HI22:
3452 case R_SPARC_TLS_IE_LO10:
c20c30f6
EB		 3453 r_type = sparc_elf_tls_transition (info, input_bfd, r_type,
3454 h == NULL || h->dynindx == -1);
3455 if (r_type == R_SPARC_REV32)
3456 break;
3457 if (h != NULL)
3458 tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3459 else if (local_got_offsets)
22b75d0a 3460 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
c20c30f6
EB		 3461 else
3462 tls_type = GOT_UNKNOWN;
22b75d0a
DM		 3463 if (tls_type == GOT_TLS_IE)
3464 switch (r_type)
3465 {
3466 case R_SPARC_TLS_GD_HI22:
3467 r_type = R_SPARC_TLS_IE_HI22;
3468 break;
3469 case R_SPARC_TLS_GD_LO10:
3470 r_type = R_SPARC_TLS_IE_LO10;
3471 break;
3472 }
3473
3474 if (r_type == R_SPARC_TLS_LE_HIX22)
3475 {
3476 relocation = tpoff (info, relocation);
3477 break;
3478 }
3479 if (r_type == R_SPARC_TLS_LE_LOX10)
3480 {
3481 /* Change add into xor. */
3482 relocation = tpoff (info, relocation);
3483 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3484 contents + rel->r_offset)
3485 | 0x80182000), contents + rel->r_offset);
3486 break;
3487 }
3488
3489 if (h != NULL)
3490 {
3491 off = h->got.offset;
3492 h->got.offset |= 1;
3493 }
3494 else
3495 {
3496 BFD_ASSERT (local_got_offsets != NULL);
3497 off = local_got_offsets[r_symndx];
3498 local_got_offsets[r_symndx] |= 1;
3499 }
3500
3501 r_sparc_tlsldm:
72fbc6e5 3502 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3503 abort ();
3504
3505 if ((off & 1) != 0)
3506 off &= ~1;
3507 else
3508 {
3509 Elf_Internal_Rela outrel;
3510 int dr_type, indx;
3511
72fbc6e5 3512 if (htab->elf.srelgot == NULL)
22b75d0a
DM		 3513 abort ();
3514
72fbc6e5
DM		 3515 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3516 htab->elf.sgot->contents + off);
3517 outrel.r_offset = (htab->elf.sgot->output_section->vma
3518 + htab->elf.sgot->output_offset + off);
22b75d0a
DM		 3519 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3520 if (r_type == R_SPARC_TLS_IE_HI22
3521 || r_type == R_SPARC_TLS_IE_LO10)
3522 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3523 else
3524 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3525 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3526 outrel.r_addend = relocation - dtpoff_base (info);
3527 else
3528 outrel.r_addend = 0;
3529 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
72fbc6e5 3530 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
22b75d0a
DM		 3531
3532 if (r_type == R_SPARC_TLS_GD_HI22
3533 || r_type == R_SPARC_TLS_GD_LO10)
3534 {
3535 if (indx == 0)
3536 {
07d6d2b8 3537 BFD_ASSERT (! unresolved_reloc);
22b75d0a
DM		 3538 SPARC_ELF_PUT_WORD (htab, output_bfd,
3539 relocation - dtpoff_base (info),
72fbc6e5 3540 (htab->elf.sgot->contents + off
22b75d0a
DM		 3541 + SPARC_ELF_WORD_BYTES (htab)));
3542 }
3543 else
3544 {
3545 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3546 (htab->elf.sgot->contents + off
22b75d0a
DM		 3547 + SPARC_ELF_WORD_BYTES (htab)));
3548 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3549 SPARC_ELF_DTPOFF_RELOC (htab));
3550 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
72fbc6e5 3551 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
39817122 3552 &outrel);
22b75d0a
DM		 3553 }
3554 }
3555 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3556 {
3557 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3558 (htab->elf.sgot->contents + off
22b75d0a
DM		 3559 + SPARC_ELF_WORD_BYTES (htab)));
3560 }
3561 }
3562
3563 if (off >= (bfd_vma) -2)
3564 abort ();
3565
72fbc6e5 3566 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3567 unresolved_reloc = FALSE;
3568 howto = _bfd_sparc_elf_howto_table + r_type;
3569 break;
3570
3571 case R_SPARC_TLS_LDM_HI22:
3572 case R_SPARC_TLS_LDM_LO10:
c20c30f6
EB		 3573 /* LD -> LE */
3574 if (bfd_link_executable (info))
22b75d0a
DM		 3575 {
3576 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3577 continue;
3578 }
3579 off = htab->tls_ldm_got.offset;
3580 htab->tls_ldm_got.offset |= 1;
3581 goto r_sparc_tlsldm;
3582
3583 case R_SPARC_TLS_LDO_HIX22:
3584 case R_SPARC_TLS_LDO_LOX10:
c20c30f6
EB		 3585 /* LD -> LE */
3586 if (bfd_link_executable (info))
3587 {
3588 if (r_type == R_SPARC_TLS_LDO_HIX22)
3589 r_type = R_SPARC_TLS_LE_HIX22;
3590 else
3591 r_type = R_SPARC_TLS_LE_LOX10;
3592 }
3593 else
22b75d0a
DM		 3594 {
3595 relocation -= dtpoff_base (info);
3596 break;
3597 }
22b75d0a
DM		 3598 /* Fall through. */
3599
3600 case R_SPARC_TLS_LE_HIX22:
3601 case R_SPARC_TLS_LE_LOX10:
c20c30f6 3602 if (!bfd_link_executable (info))
22b75d0a
DM		 3603 {
3604 Elf_Internal_Rela outrel;
c20c30f6
EB		 3605 bfd_vma offset
3606 = _bfd_elf_section_offset (output_bfd, info, input_section,
3607 rel->r_offset);
3608 if (offset == (bfd_vma) -1 || offset == (bfd_vma) -2)
22b75d0a
DM		 3609 memset (&outrel, 0, sizeof outrel);
3610 else
3611 {
c20c30f6
EB		 3612 outrel.r_offset = offset
3613 + input_section->output_section->vma
3614 + input_section->output_offset;
22b75d0a 3615 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
c20c30f6
EB		 3616 outrel.r_addend
3617 = relocation - dtpoff_base (info) + rel->r_addend;
22b75d0a
DM		 3618 }
3619
c20c30f6 3620 BFD_ASSERT (sreloc != NULL);
39817122 3621 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3622 continue;
3623 }
3624 relocation = tpoff (info, relocation);
3625 break;
3626
3627 case R_SPARC_TLS_LDM_CALL:
c20c30f6
EB		 3628 /* LD -> LE */
3629 if (bfd_link_executable (info))
22b75d0a
DM		 3630 {
3631 /* mov %g0, %o0 */
3632 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3633 continue;
3634 }
3635 /* Fall through */
3636
3637 case R_SPARC_TLS_GD_CALL:
c20c30f6
EB		 3638 if (h != NULL)
3639 tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3640 else if (local_got_offsets)
22b75d0a 3641 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
c20c30f6
EB		 3642 else
3643 tls_type = GOT_UNKNOWN;
3644 /* GD -> IE or LE */
3645 if (bfd_link_executable (info)
22b75d0a
DM		 3646 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3647 {
abd242a9 3648 Elf_Internal_Rela *rel2;
22b75d0a
DM		 3649 bfd_vma insn;
3650
c20c30f6
EB		 3651 /* GD -> LE */
3652 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
22b75d0a 3653 {
22b75d0a
DM		 3654 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3655 continue;
3656 }
3657
3658 /* GD -> IE */
3659 if (rel + 1 < relend
3660 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3661 && rel[1].r_offset == rel->r_offset + 4
3662 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3663 && (((insn = bfd_get_32 (input_bfd,
3664 contents + rel[1].r_offset))
3665 >> 25) & 0x1f) == 8)
3666 {
3667 /* We have
3668 call __tls_get_addr, %tgd_call(foo)
3669 add %reg1, %reg2, %o0, %tgd_add(foo)
3670 and change it into IE:
3671 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3672 add %g7, %o0, %o0, %tie_add(foo).
3673 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3674 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3675 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3676 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3677 contents + rel->r_offset);
3678 bfd_put_32 (output_bfd, 0x9001c008,
3679 contents + rel->r_offset + 4);
3680 rel++;
3681 continue;
3682 }
3683
abd242a9
DM		 3684 /* We cannot just overwrite the delay slot instruction,
3685 as it might be what puts the %o0 argument to
3686 __tls_get_addr into place. So we have to transpose
3687 the delay slot with the add we patch in. */
3688 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3689 bfd_put_32 (output_bfd, insn,
3690 contents + rel->r_offset);
3691 bfd_put_32 (output_bfd, 0x9001c008,
3692 contents + rel->r_offset + 4);
3693
3694 rel2 = rel;
3695 while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3696 rel->r_offset + 4))
3697 != NULL)
3698 {
3699 /* If the instruction we moved has a relocation attached to
3700 it, adjust the offset so that it will apply to the correct
3701 instruction. */
3702 rel2->r_offset -= 4;
3703 }
22b75d0a
DM		 3704 continue;
3705 }
3706
3707 h = (struct elf_link_hash_entry *)
3708 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3709 FALSE, TRUE);
3710 BFD_ASSERT (h != NULL);
3711 r_type = R_SPARC_WPLT30;
3712 howto = _bfd_sparc_elf_howto_table + r_type;
3713 goto r_sparc_wplt30;
3714
3715 case R_SPARC_TLS_GD_ADD:
c20c30f6
EB		 3716 if (h != NULL)
3717 tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3718 else if (local_got_offsets)
22b75d0a 3719 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
c20c30f6
EB		 3720 else
3721 tls_type = GOT_UNKNOWN;
3722 /* GD -> IE or LE */
3723 if (bfd_link_executable (info) || tls_type == GOT_TLS_IE)
22b75d0a
DM		 3724 {
3725 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3726 changed into IE:
3727 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3728 or LE:
3729 add %g7, %reg2, %reg3. */
3730 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
c20c30f6 3731 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
22b75d0a 3732 relocation = (insn & ~0x7c000) | 0x1c000;
c20c30f6
EB		 3733 else
3734 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
22b75d0a
DM		 3735 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3736 }
3737 continue;
3738
3739 case R_SPARC_TLS_LDM_ADD:
c20c30f6
EB		 3740 /* LD -> LE */
3741 if (bfd_link_executable (info))
22b75d0a
DM		 3742 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3743 continue;
3744
3745 case R_SPARC_TLS_LDO_ADD:
c20c30f6
EB		 3746 /* LD -> LE */
3747 if (bfd_link_executable (info))
22b75d0a
DM		 3748 {
3749 /* Change rs1 into %g7. */
3750 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3751 insn = (insn & ~0x7c000) | 0x1c000;
3752 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3753 }
3754 continue;
3755
3756 case R_SPARC_TLS_IE_LD:
3757 case R_SPARC_TLS_IE_LDX:
c20c30f6
EB		 3758 /* IE -> LE */
3759 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
22b75d0a
DM		 3760 {
3761 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3762 int rs2 = insn & 0x1f;
3763 int rd = (insn >> 25) & 0x1f;
3764
3765 if (rs2 == rd)
3766 relocation = SPARC_NOP;
3767 else
3768 relocation = 0x80100000 | (insn & 0x3e00001f);
3769 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3770 }
3771 continue;
3772
3773 case R_SPARC_TLS_IE_ADD:
3774 /* Totally useless relocation. */
3775 continue;
3776
3777 case R_SPARC_TLS_DTPOFF32:
3778 case R_SPARC_TLS_DTPOFF64:
3779 relocation -= dtpoff_base (info);
3780 break;
3781
3782 default:
3783 break;
3784 }
3785
3786 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3787 because such sections are not SEC_ALLOC and thus ld.so will
3788 not process them. */
3789 if (unresolved_reloc
3790 && !((input_section->flags & SEC_DEBUGGING) != 0
1d5316ab
AM		 3791 && h->def_dynamic)
3792 && _bfd_elf_section_offset (output_bfd, info, input_section,
3793 rel->r_offset) != (bfd_vma) -1)
4eca0228 3794 _bfd_error_handler
695344c0 3795 /* xgettext:c-format */
2dcf00ce
AM		 3796 (_("%pB(%pA+%#" PRIx64 "): "
3797 "unresolvable %s relocation against symbol `%s'"),
22b75d0a
DM		 3798 input_bfd,
3799 input_section,
2dcf00ce 3800 (uint64_t) rel->r_offset,
843fe662 3801 howto->name,
22b75d0a
DM		 3802 h->root.root.string);
3803
3804 r = bfd_reloc_continue;
3805 if (r_type == R_SPARC_OLO10)
3806 {
3807 bfd_vma x;
3808
3809 if (! ABI_64_P (output_bfd))
3810 abort ();
3811
3812 relocation += rel->r_addend;
3813 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3814
3815 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3816 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3817 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3818
3819 r = bfd_check_overflow (howto->complain_on_overflow,
3820 howto->bitsize, howto->rightshift,
3821 bfd_arch_bits_per_address (input_bfd),
3822 relocation);
3823 }
3824 else if (r_type == R_SPARC_WDISP16)
3825 {
3826 bfd_vma x;
3827
3828 relocation += rel->r_addend;
3829 relocation -= (input_section->output_section->vma
3830 + input_section->output_offset);
3831 relocation -= rel->r_offset;
3832
3833 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3834 x |= ((((relocation >> 2) & 0xc000) << 6)
3835 | ((relocation >> 2) & 0x3fff));
3836 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3837
2615994e
DM		 3838 r = bfd_check_overflow (howto->complain_on_overflow,
3839 howto->bitsize, howto->rightshift,
3840 bfd_arch_bits_per_address (input_bfd),
3841 relocation);
3842 }
3843 else if (r_type == R_SPARC_WDISP10)
3844 {
3845 bfd_vma x;
3846
3847 relocation += rel->r_addend;
3848 relocation -= (input_section->output_section->vma
3849 + input_section->output_offset);
3850 relocation -= rel->r_offset;
3851
3852 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3853 x |= ((((relocation >> 2) & 0x300) << 11)
3854 | (((relocation >> 2) & 0xff) << 5));
3855 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3856
22b75d0a
DM		 3857 r = bfd_check_overflow (howto->complain_on_overflow,
3858 howto->bitsize, howto->rightshift,
3859 bfd_arch_bits_per_address (input_bfd),
3860 relocation);
3861 }
3862 else if (r_type == R_SPARC_REV32)
3863 {
3864 bfd_vma x;
3865
3866 relocation = relocation + rel->r_addend;
3867
3868 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3869 x = x + relocation;
3870 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
3871 r = bfd_reloc_ok;
3872 }
3873 else if (r_type == R_SPARC_TLS_LDO_HIX22
3874 || r_type == R_SPARC_TLS_LE_HIX22)
3875 {
3876 bfd_vma x;
3877
3878 relocation += rel->r_addend;
3879 if (r_type == R_SPARC_TLS_LE_HIX22)
3880 relocation ^= MINUS_ONE;
3881
3882 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3883 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3884 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3885 r = bfd_reloc_ok;
3886 }
3887 else if (r_type == R_SPARC_TLS_LDO_LOX10
3888 || r_type == R_SPARC_TLS_LE_LOX10)
3889 {
3890 bfd_vma x;
3891
3892 relocation += rel->r_addend;
3893 relocation &= 0x3ff;
3894 if (r_type == R_SPARC_TLS_LE_LOX10)
3895 relocation |= 0x1c00;
3896
3897 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3898 x = (x & ~(bfd_vma) 0x1fff) | relocation;
3899 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3900
3901 r = bfd_reloc_ok;
3902 }
00c50991 3903 else if (r_type == R_SPARC_HIX22
cc133f9f
JC		 3904 || r_type == R_SPARC_GOTDATA_HIX22
3905 || r_type == R_SPARC_GOTDATA_OP_HIX22)
22b75d0a
DM		 3906 {
3907 bfd_vma x;
3908
3909 relocation += rel->r_addend;
00c50991
DM		 3910 if (r_type == R_SPARC_HIX22
3911 || (bfd_signed_vma) relocation < 0)
3912 relocation = relocation ^ MINUS_ONE;
22b75d0a
DM		 3913
3914 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3915 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3916 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3917
3918 r = bfd_check_overflow (howto->complain_on_overflow,
3919 howto->bitsize, howto->rightshift,
3920 bfd_arch_bits_per_address (input_bfd),
3921 relocation);
3922 }
00c50991 3923 else if (r_type == R_SPARC_LOX10
cc133f9f
JC		 3924 || r_type == R_SPARC_GOTDATA_LOX10
3925 || r_type == R_SPARC_GOTDATA_OP_LOX10)
22b75d0a
DM		 3926 {
3927 bfd_vma x;
3928
3929 relocation += rel->r_addend;
00c50991
DM		 3930 if (r_type == R_SPARC_LOX10
3931 || (bfd_signed_vma) relocation < 0)
3932 relocation = (relocation & 0x3ff) | 0x1c00;
3933 else
3934 relocation = (relocation & 0x3ff);
22b75d0a
DM		 3935
3936 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3937 x = (x & ~(bfd_vma) 0x1fff) | relocation;
3938 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3939
3940 r = bfd_reloc_ok;
3941 }
3942 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
3943 && sec_do_relax (input_section)
3944 && rel->r_offset + 4 < input_section->size)
3945 {
3946#define G0 0
3947#define O7 15
3948#define XCC (2 << 20)
3949#define COND(x) (((x)&0xf)<<25)
3950#define CONDA COND(0x8)
3951#define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
3952#define INSN_BA (F2(0,2) | CONDA)
3953#define INSN_OR F3(2, 0x2, 0)
3954#define INSN_NOP F2(0,4)
3955
3956 bfd_vma x, y;
3957
3958 /* If the instruction is a call with either:
3959 restore
3960 arithmetic instruction with rd == %o7
3961 where rs1 != %o7 and rs2 if it is register != %o7
3962 then we can optimize if the call destination is near
3963 by changing the call into a branch always. */
3964 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3965 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3966 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
3967 {
3968 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
3969 || ((y & OP3(0x28)) == 0 /* arithmetic */
3970 && (y & RD(~0)) == RD(O7)))
3971 && (y & RS1(~0)) != RS1(O7)
3972 && ((y & F3I(~0))
3973 || (y & RS2(~0)) != RS2(O7)))
3974 {
3975 bfd_vma reloc;
3976
3977 reloc = relocation + rel->r_addend - rel->r_offset;
3978 reloc -= (input_section->output_section->vma
3979 + input_section->output_offset);
3980
3981 /* Ensure the branch fits into simm22. */
3982 if ((reloc & 3) == 0
3983 && ((reloc & ~(bfd_vma)0x7fffff) == 0
3984 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
3985 {
3986 reloc >>= 2;
3987
3988 /* Check whether it fits into simm19. */
3989 if (((reloc & 0x3c0000) == 0
3990 || (reloc & 0x3c0000) == 0x3c0000)
3991 && (ABI_64_P (output_bfd)
3992 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
3993 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
3994 else
3995 x = INSN_BA | (reloc & 0x3fffff); /* ba */
3996 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3997 r = bfd_reloc_ok;
3998 if (rel->r_offset >= 4
3999 && (y & (0xffffffff ^ RS1(~0)))
4000 == (INSN_OR | RD(O7) | RS2(G0)))
4001 {
4002 bfd_vma z;
4003 unsigned int reg;
4004
4005 z = bfd_get_32 (input_bfd,
4006 contents + rel->r_offset - 4);
4007 if ((z & (0xffffffff ^ RD(~0)))
4008 != (INSN_OR | RS1(O7) | RS2(G0)))
597e138c 4009 continue;
22b75d0a
DM		 4010
4011 /* The sequence was
4012 or %o7, %g0, %rN
4013 call foo
4014 or %rN, %g0, %o7
4015
4016 If call foo was replaced with ba, replace
4017 or %rN, %g0, %o7 with nop. */
4018
4019 reg = (y & RS1(~0)) >> 14;
4020 if (reg != ((z & RD(~0)) >> 25)
4021 || reg == G0 || reg == O7)
597e138c 4022 continue;
22b75d0a
DM		 4023
4024 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4025 contents + rel->r_offset + 4);
4026 }
4027
4028 }
4029 }
4030 }
4031 }
4032
4033 if (r == bfd_reloc_continue)
d0c9aeb3 4034 {
dc1e8a47 4035 do_relocation:
d0c9aeb3
DM		 4036 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4037 contents, rel->r_offset,
4038 relocation, rel->r_addend);
4039 }
22b75d0a
DM		 4040 if (r != bfd_reloc_ok)
4041 {
4042 switch (r)
4043 {
4044 default:
4045 case bfd_reloc_outofrange:
4046 abort ();
4047 case bfd_reloc_overflow:
4048 {
4049 const char *name;
4050
68ffbac6 4051 /* The Solaris native linker silently disregards overflows.
dc669dc8
EB		 4052 We don't, but this breaks stabs debugging info, whose
4053 relocations are only 32-bits wide. Ignore overflows in
4054 this case and also for discarded entries. */
0bef263a
RO		 4055 if ((r_type == R_SPARC_32
4056 || r_type == R_SPARC_UA32
4057 || r_type == R_SPARC_DISP32)
dc669dc8 4058 && (((input_section->flags & SEC_DEBUGGING) != 0
fd361982 4059 && strcmp (bfd_section_name (input_section),
dc669dc8
EB		 4060 ".stab") == 0)
4061 || _bfd_elf_section_offset (output_bfd, info,
4062 input_section,
4063 rel->r_offset)
4064 == (bfd_vma)-1))
4065 break;
4066
22b75d0a 4067 if (h != NULL)
bb29dfea
EB		 4068 {
4069 /* Assume this is a call protected by other code that
4070 detect the symbol is undefined. If this is the case,
4071 we can safely ignore the overflow. If not, the
4072 program is hosed anyway, and a little warning isn't
4073 going to help. */
4074 if (h->root.type == bfd_link_hash_undefweak
4075 && howto->pc_relative)
4076 break;
4077
07d6d2b8 4078 name = NULL;
bb29dfea 4079 }
22b75d0a
DM		 4080 else
4081 {
4082 name = bfd_elf_string_from_elf_section (input_bfd,
4083 symtab_hdr->sh_link,
4084 sym->st_name);
4085 if (name == NULL)
4086 return FALSE;
4087 if (*name == '\0')
fd361982 4088 name = bfd_section_name (sec);
22b75d0a 4089 }
1a72702b
AM		 4090 (*info->callbacks->reloc_overflow)
4091 (info, (h ? &h->root : NULL), name, howto->name,
4092 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
22b75d0a
DM		 4093 }
4094 break;
4095 }
4096 }
4097 }
4098
4099 return TRUE;
4100}
4101
910600e9
RS		 4102/* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4103 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4104 is the offset of the associated .got.plt entry from
4105 _GLOBAL_OFFSET_TABLE_. */
4106
4107static void
4108sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4109 bfd_vma plt_offset, bfd_vma plt_index,
4110 bfd_vma got_offset)
4111{
4112 bfd_vma got_base;
4113 const bfd_vma *plt_entry;
4114 struct _bfd_sparc_elf_link_hash_table *htab;
4115 bfd_byte *loc;
4116 Elf_Internal_Rela rela;
4117
4118 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4119 BFD_ASSERT (htab != NULL);
4120
0e1862bb 4121 if (bfd_link_pic (info))
910600e9
RS		 4122 {
4123 plt_entry = sparc_vxworks_shared_plt_entry;
4124 got_base = 0;
4125 }
4126 else
4127 {
4128 plt_entry = sparc_vxworks_exec_plt_entry;
4129 got_base = (htab->elf.hgot->root.u.def.value
4130 + htab->elf.hgot->root.u.def.section->output_offset
4131 + htab->elf.hgot->root.u.def.section->output_section->vma);
4132 }
4133
4134 /* Fill in the entry in the procedure linkage table. */
4135 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
72fbc6e5 4136 htab->elf.splt->contents + plt_offset);
910600e9 4137 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
72fbc6e5 4138 htab->elf.splt->contents + plt_offset + 4);
910600e9 4139 bfd_put_32 (output_bfd, plt_entry[2],
72fbc6e5 4140 htab->elf.splt->contents + plt_offset + 8);
910600e9 4141 bfd_put_32 (output_bfd, plt_entry[3],
72fbc6e5 4142 htab->elf.splt->contents + plt_offset + 12);
910600e9 4143 bfd_put_32 (output_bfd, plt_entry[4],
72fbc6e5 4144 htab->elf.splt->contents + plt_offset + 16);
910600e9 4145 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
72fbc6e5 4146 htab->elf.splt->contents + plt_offset + 20);
910600e9
RS		 4147 /* PC-relative displacement for a branch to the start of
4148 the PLT section. */
4149 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4150 & 0x003fffff),
72fbc6e5 4151 htab->elf.splt->contents + plt_offset + 24);
910600e9 4152 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
72fbc6e5 4153 htab->elf.splt->contents + plt_offset + 28);
910600e9
RS		 4154
4155 /* Fill in the .got.plt entry, pointing initially at the
4156 second half of the PLT entry. */
72fbc6e5 4157 BFD_ASSERT (htab->elf.sgotplt != NULL);
910600e9 4158 bfd_put_32 (output_bfd,
72fbc6e5
DM		 4159 htab->elf.splt->output_section->vma
4160 + htab->elf.splt->output_offset
910600e9 4161 + plt_offset + 20,
72fbc6e5 4162 htab->elf.sgotplt->contents + got_offset);
910600e9
RS		 4163
4164 /* Add relocations to .rela.plt.unloaded. */
0e1862bb 4165 if (!bfd_link_pic (info))
910600e9
RS		 4166 {
4167 loc = (htab->srelplt2->contents
4168 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4169
4170 /* Relocate the initial sethi. */
72fbc6e5
DM		 4171 rela.r_offset = (htab->elf.splt->output_section->vma
4172 + htab->elf.splt->output_offset
910600e9
RS		 4173 + plt_offset);
4174 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4175 rela.r_addend = got_offset;
4176 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4177 loc += sizeof (Elf32_External_Rela);
4178
4179 /* Likewise the following or. */
4180 rela.r_offset += 4;
4181 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4182 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4183 loc += sizeof (Elf32_External_Rela);
4184
4185 /* Relocate the .got.plt entry. */
72fbc6e5
DM		 4186 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4187 + htab->elf.sgotplt->output_offset
910600e9
RS		 4188 + got_offset);
4189 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4190 rela.r_addend = plt_offset + 20;
4191 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4192 }
4193}
4194
22b75d0a
DM		 4195/* Finish up dynamic symbol handling. We set the contents of various
4196 dynamic sections here. */
4197
4198bfd_boolean
4199_bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4200 struct bfd_link_info *info,
4201 struct elf_link_hash_entry *h,
4202 Elf_Internal_Sym *sym)
4203{
22b75d0a 4204 struct _bfd_sparc_elf_link_hash_table *htab;
39817122 4205 const struct elf_backend_data *bed;
bb1dd176 4206 struct _bfd_sparc_elf_link_hash_entry *eh;
a8735c82 4207 bfd_boolean resolved_to_zero;
22b75d0a
DM		 4208
4209 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4210 BFD_ASSERT (htab != NULL);
39817122 4211 bed = get_elf_backend_data (output_bfd);
22b75d0a 4212
bb1dd176
QZ		 4213 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4214
4215 /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4216 resolved undefined weak symbols in executable so that their
4217 references have value 0 at run-time. */
a8735c82 4218 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
bb1dd176 4219
22b75d0a
DM		 4220 if (h->plt.offset != (bfd_vma) -1)
4221 {
4222 asection *splt;
4223 asection *srela;
4224 Elf_Internal_Rela rela;
4225 bfd_byte *loc;
910600e9 4226 bfd_vma r_offset, got_offset;
22b75d0a
DM		 4227 int rela_index;
4228
d0c9aeb3
DM		 4229 /* When building a static executable, use .iplt and
4230 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4231 if (htab->elf.splt != NULL)
4232 {
4233 splt = htab->elf.splt;
4234 srela = htab->elf.srelplt;
4235 }
4236 else
4237 {
4238 splt = htab->elf.iplt;
4239 srela = htab->elf.irelplt;
4240 }
22b75d0a 4241
d0c9aeb3
DM		 4242 if (splt == NULL || srela == NULL)
4243 abort ();
22b75d0a 4244
22b75d0a 4245 /* Fill in the entry in the .rela.plt section. */
90c14f0c 4246 if (htab->elf.target_os == is_vxworks)
22b75d0a 4247 {
910600e9
RS		 4248 /* Work out the index of this PLT entry. */
4249 rela_index = ((h->plt.offset - htab->plt_header_size)
4250 / htab->plt_entry_size);
4251
4252 /* Calculate the offset of the associated .got.plt entry.
4253 The first three entries are reserved. */
4254 got_offset = (rela_index + 3) * 4;
4255
4256 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4257 rela_index, got_offset);
4258
4259
4260 /* On VxWorks, the relocation points to the .got.plt entry,
4261 not the .plt entry. */
72fbc6e5
DM		 4262 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4263 + htab->elf.sgotplt->output_offset
910600e9 4264 + got_offset);
22b75d0a 4265 rela.r_addend = 0;
d0c9aeb3
DM		 4266 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4267 R_SPARC_JMP_SLOT);
22b75d0a
DM		 4268 }
4269 else
4270 {
d0c9aeb3
DM		 4271 bfd_boolean ifunc = FALSE;
4272
910600e9
RS		 4273 /* Fill in the entry in the procedure linkage table. */
4274 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4275 h->plt.offset, splt->size,
4276 &r_offset);
4277
d0c9aeb3
DM		 4278 if (h == NULL
4279 || h->dynindx == -1
0e1862bb 4280 || ((bfd_link_executable (info)
d0c9aeb3
DM		 4281 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4282 && h->def_regular
4283 && h->type == STT_GNU_IFUNC))
4284 {
4285 ifunc = TRUE;
4286 BFD_ASSERT (h == NULL
4287 || (h->type == STT_GNU_IFUNC
4288 && h->def_regular
4289 && (h->root.type == bfd_link_hash_defined
4290 || h->root.type == bfd_link_hash_defweak)));
4291 }
4292
910600e9
RS		 4293 rela.r_offset = r_offset
4294 + (splt->output_section->vma + splt->output_offset);
d0c9aeb3
DM		 4295 if (ABI_64_P (output_bfd)
4296 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
910600e9 4297 {
d0c9aeb3
DM		 4298 if (ifunc)
4299 {
4300 rela.r_addend = (h->root.u.def.section->output_section->vma
4301 + h->root.u.def.section->output_offset
4302 + h->root.u.def.value);
4303 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4304 R_SPARC_IRELATIVE);
4305 }
4306 else
4307 {
4308 rela.r_addend = (-(h->plt.offset + 4)
4309 - splt->output_section->vma
4310 - splt->output_offset);
4311 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4312 R_SPARC_JMP_SLOT);
4313 }
910600e9
RS		 4314 }
4315 else
4316 {
d0c9aeb3
DM		 4317 if (ifunc)
4318 {
4319 rela.r_addend = (h->root.u.def.section->output_section->vma
4320 + h->root.u.def.section->output_offset
4321 + h->root.u.def.value);
4322 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4323 R_SPARC_JMP_IREL);
4324 }
4325 else
4326 {
4327 rela.r_addend = 0;
4328 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4329 R_SPARC_JMP_SLOT);
4330 }
910600e9 4331 }
22b75d0a 4332 }
22b75d0a
DM		 4333
4334 /* Adjust for the first 4 reserved elements in the .plt section
4335 when setting the offset in the .rela.plt section.
4336 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4337 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4338
4339 loc = srela->contents;
39817122
RS		 4340 loc += rela_index * bed->s->sizeof_rela;
4341 bed->s->swap_reloca_out (output_bfd, &rela, loc);
22b75d0a 4342
a8735c82 4343 if (!resolved_to_zero && !h->def_regular)
22b75d0a
DM		 4344 {
4345 /* Mark the symbol as undefined, rather than as defined in
4346 the .plt section. Leave the value alone. */
4347 sym->st_shndx = SHN_UNDEF;
4348 /* If the symbol is weak, we do need to clear the value.
4349 Otherwise, the PLT entry would provide a definition for
4350 the symbol even if the symbol wasn't defined anywhere,
4351 and so the symbol would never be NULL. */
4352 if (!h->ref_regular_nonweak)
4353 sym->st_value = 0;
4354 }
4355 }
4356
a8735c82
EB		 4357 /* Don't generate dynamic GOT relocation against resolved undefined weak
4358 symbols in an executable. */
22b75d0a
DM		 4359 if (h->got.offset != (bfd_vma) -1
4360 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
bb1dd176 4361 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
a8735c82
EB		 4362 && !(h->root.type == bfd_link_hash_undefweak
4363 && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4364 || resolved_to_zero)))
22b75d0a
DM		 4365 {
4366 asection *sgot;
4367 asection *srela;
4368 Elf_Internal_Rela rela;
4369
4370 /* This symbol has an entry in the GOT. Set it up. */
4371
72fbc6e5
DM		 4372 sgot = htab->elf.sgot;
4373 srela = htab->elf.srelgot;
22b75d0a
DM		 4374 BFD_ASSERT (sgot != NULL && srela != NULL);
4375
4376 rela.r_offset = (sgot->output_section->vma
4377 + sgot->output_offset
4378 + (h->got.offset &~ (bfd_vma) 1));
4379
4380 /* If this is a -Bsymbolic link, and the symbol is defined
4381 locally, we just want to emit a RELATIVE reloc. Likewise if
4382 the symbol was forced to be local because of a version file.
4383 The entry in the global offset table will already have been
4384 initialized in the relocate_section function. */
0e1862bb 4385 if (! bfd_link_pic (info)
d0c9aeb3
DM		 4386 && h->type == STT_GNU_IFUNC
4387 && h->def_regular)
4388 {
4389 asection *plt;
4390
4391 /* We load the GOT entry with the PLT entry. */
4392 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4393 SPARC_ELF_PUT_WORD (htab, output_bfd,
4394 (plt->output_section->vma
4395 + plt->output_offset + h->plt.offset),
4396 htab->elf.sgot->contents
4397 + (h->got.offset & ~(bfd_vma) 1));
4398 return TRUE;
4399 }
a8735c82
EB		 4400
4401 if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
22b75d0a
DM		 4402 {
4403 asection *sec = h->root.u.def.section;
d0c9aeb3
DM		 4404 if (h->type == STT_GNU_IFUNC)
4405 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4406 else
4407 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
22b75d0a
DM		 4408 rela.r_addend = (h->root.u.def.value
4409 + sec->output_section->vma
4410 + sec->output_offset);
4411 }
4412 else
4413 {
4414 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4415 rela.r_addend = 0;
4416 }
4417
4418 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4419 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
39817122 4420 sparc_elf_append_rela (output_bfd, srela, &rela);
22b75d0a
DM		 4421 }
4422
4423 if (h->needs_copy)
4424 {
4425 asection *s;
4426 Elf_Internal_Rela rela;
4427
4428 /* This symbols needs a copy reloc. Set it up. */
4429 BFD_ASSERT (h->dynindx != -1);
4430
22b75d0a
DM		 4431 rela.r_offset = (h->root.u.def.value
4432 + h->root.u.def.section->output_section->vma
4433 + h->root.u.def.section->output_offset);
4434 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4435 rela.r_addend = 0;
afbf7e8e 4436 if (h->root.u.def.section == htab->elf.sdynrelro)
5474d94f
AM		 4437 s = htab->elf.sreldynrelro;
4438 else
4439 s = htab->elf.srelbss;
39817122 4440 sparc_elf_append_rela (output_bfd, s, &rela);
22b75d0a
DM		 4441 }
4442
910600e9
RS		 4443 /* Mark some specially defined symbols as absolute. On VxWorks,
4444 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4445 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
d0c9aeb3 4446 if (sym != NULL
9637f6ef 4447 && (h == htab->elf.hdynamic
90c14f0c 4448 || (htab->elf.target_os != is_vxworks
d0c9aeb3 4449 && (h == htab->elf.hgot || h == htab->elf.hplt))))
22b75d0a
DM		 4450 sym->st_shndx = SHN_ABS;
4451
4452 return TRUE;
4453}
4454
4455/* Finish up the dynamic sections. */
4456
22b75d0a 4457static bfd_boolean
39817122
RS		 4458sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4459 bfd *dynobj, asection *sdyn,
4460 asection *splt ATTRIBUTE_UNUSED)
22b75d0a 4461{
910600e9 4462 struct _bfd_sparc_elf_link_hash_table *htab;
39817122
RS		 4463 const struct elf_backend_data *bed;
4464 bfd_byte *dyncon, *dynconend;
4465 size_t dynsize;
4466 int stt_regidx = -1;
4467 bfd_boolean abi_64_p;
22b75d0a 4468
910600e9 4469 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4470 BFD_ASSERT (htab != NULL);
39817122
RS		 4471 bed = get_elf_backend_data (output_bfd);
4472 dynsize = bed->s->sizeof_dyn;
4473 dynconend = sdyn->contents + sdyn->size;
4474 abi_64_p = ABI_64_P (output_bfd);
4475 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
22b75d0a
DM		 4476 {
4477 Elf_Internal_Dyn dyn;
22b75d0a
DM		 4478 bfd_boolean size;
4479
39817122 4480 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
22b75d0a 4481
90c14f0c 4482 if (htab->elf.target_os == is_vxworks && dyn.d_tag == DT_PLTGOT)
22b75d0a 4483 {
910600e9
RS		 4484 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4485 not to the start of the PLT. */
72fbc6e5 4486 if (htab->elf.sgotplt)
910600e9 4487 {
72fbc6e5
DM		 4488 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4489 + htab->elf.sgotplt->output_offset);
39817122 4490 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
910600e9
RS		 4491 }
4492 }
90c14f0c 4493 else if (htab->elf.target_os == is_vxworks
7a2b07ff
NS		 4494 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4495 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
39817122
RS		 4496 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4497 {
4498 if (stt_regidx == -1)
4499 {
4500 stt_regidx =
4501 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4502 if (stt_regidx == -1)
4503 return FALSE;
4504 }
4505 dyn.d_un.d_val = stt_regidx++;
4506 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4507 }
910600e9
RS		 4508 else
4509 {
ce558b89
AM		 4510 asection *s;
4511
910600e9
RS		 4512 switch (dyn.d_tag)
4513 {
ce558b89
AM		 4514 case DT_PLTGOT:
4515 s = htab->elf.splt;
4516 size = FALSE;
4517 break;
4518 case DT_PLTRELSZ:
4519 s = htab->elf.srelplt;
4520 size = TRUE;
4521 break;
4522 case DT_JMPREL:
4523 s = htab->elf.srelplt;
4524 size = FALSE;
4525 break;
4526 default:
4527 continue;
910600e9 4528 }
22b75d0a 4529
ce558b89
AM		 4530 if (s == NULL)
4531 dyn.d_un.d_val = 0;
4532 else
22b75d0a 4533 {
ce558b89
AM		 4534 if (!size)
4535 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
22b75d0a 4536 else
ce558b89 4537 dyn.d_un.d_val = s->size;
22b75d0a 4538 }
ce558b89 4539 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
22b75d0a
DM		 4540 }
4541 }
4542 return TRUE;
4543}
4544
910600e9
RS		 4545/* Install the first PLT entry in a VxWorks executable and make sure that
4546 .rela.plt.unloaded relocations have the correct symbol indexes. */
4547
4548static void
4549sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4550{
4551 struct _bfd_sparc_elf_link_hash_table *htab;
4552 Elf_Internal_Rela rela;
4553 bfd_vma got_base;
4554 bfd_byte *loc;
4555
4556 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4557 BFD_ASSERT (htab != NULL);
910600e9
RS		 4558
4559 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4560 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4561 + htab->elf.hgot->root.u.def.section->output_offset
4562 + htab->elf.hgot->root.u.def.value);
4563
4564 /* Install the initial PLT entry. */
4565 bfd_put_32 (output_bfd,
4566 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
72fbc6e5 4567 htab->elf.splt->contents);
910600e9
RS		 4568 bfd_put_32 (output_bfd,
4569 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
72fbc6e5 4570 htab->elf.splt->contents + 4);
910600e9
RS		 4571 bfd_put_32 (output_bfd,
4572 sparc_vxworks_exec_plt0_entry[2],
72fbc6e5 4573 htab->elf.splt->contents + 8);
910600e9
RS		 4574 bfd_put_32 (output_bfd,
4575 sparc_vxworks_exec_plt0_entry[3],
72fbc6e5 4576 htab->elf.splt->contents + 12);
910600e9
RS		 4577 bfd_put_32 (output_bfd,
4578 sparc_vxworks_exec_plt0_entry[4],
72fbc6e5 4579 htab->elf.splt->contents + 16);
910600e9
RS		 4580
4581 loc = htab->srelplt2->contents;
4582
4583 /* Add an unloaded relocation for the initial entry's "sethi". */
72fbc6e5
DM		 4584 rela.r_offset = (htab->elf.splt->output_section->vma
4585 + htab->elf.splt->output_offset);
910600e9
RS		 4586 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4587 rela.r_addend = 8;
4588 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4589 loc += sizeof (Elf32_External_Rela);
4590
4591 /* Likewise the following "or". */
4592 rela.r_offset += 4;
4593 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4594 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4595 loc += sizeof (Elf32_External_Rela);
4596
4597 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4598 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4599 in which symbols were output. */
4600 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4601 {
4602 Elf_Internal_Rela rel;
4603
4604 /* The entry's initial "sethi" (against _G_O_T_). */
4605 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4606 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4607 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4608 loc += sizeof (Elf32_External_Rela);
4609
4610 /* The following "or" (also against _G_O_T_). */
4611 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4612 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4613 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4614 loc += sizeof (Elf32_External_Rela);
4615
4616 /* The .got.plt entry (against _P_L_T_). */
4617 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4618 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4619 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4620 loc += sizeof (Elf32_External_Rela);
4621 }
4622}
4623
4624/* Install the first PLT entry in a VxWorks shared object. */
4625
4626static void
4627sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4628{
4629 struct _bfd_sparc_elf_link_hash_table *htab;
4630 unsigned int i;
4631
4632 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4633 BFD_ASSERT (htab != NULL);
4634
910600e9
RS		 4635 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4636 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
72fbc6e5 4637 htab->elf.splt->contents + i * 4);
910600e9
RS		 4638}
4639
d0c9aeb3
DM		 4640/* Finish up local dynamic symbol handling. We set the contents of
4641 various dynamic sections here. */
4642
4643static bfd_boolean
4644finish_local_dynamic_symbol (void **slot, void *inf)
4645{
4646 struct elf_link_hash_entry *h
4647 = (struct elf_link_hash_entry *) *slot;
4648 struct bfd_link_info *info
68ffbac6 4649 = (struct bfd_link_info *) inf;
d0c9aeb3
DM		 4650
4651 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4652 h, NULL);
4653}
4654
bb1dd176
QZ		 4655/* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4656 here since undefined weak symbol may not be dynamic and may not be
4657 called for _bfd_sparc_elf_finish_dynamic_symbol. */
4658
4659static bfd_boolean
4660pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
07d6d2b8 4661 void *inf)
bb1dd176
QZ		 4662{
4663 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4664 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4665
4666 if (h->root.type != bfd_link_hash_undefweak
4667 || h->dynindx != -1)
4668 return TRUE;
4669
4670 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
07d6d2b8 4671 h, NULL);
bb1dd176
QZ		 4672}
4673
22b75d0a
DM		 4674bfd_boolean
4675_bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4676{
4677 bfd *dynobj;
4678 asection *sdyn;
4679 struct _bfd_sparc_elf_link_hash_table *htab;
4680
4681 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4682 BFD_ASSERT (htab != NULL);
22b75d0a 4683 dynobj = htab->elf.dynobj;
4b24dd1a 4684
6d0a6093
JM		 4685 /* We arranged in size_dynamic_sections to put the STT_REGISTER
4686 entries at the end of the dynlocal list, so they came at the end
4687 of the local symbols in the symtab. Except that they aren't
4688 STB_LOCAL, so we need to back up symtab->sh_info. */
4689 if (ABI_64_P (output_bfd)
4690 && elf_hash_table (info)->dynlocal)
4691 {
4692 asection *dynsymsec = bfd_get_linker_section (dynobj, ".dynsym");
4693 struct elf_link_local_dynamic_entry *e;
4b24dd1a 4694
6d0a6093
JM		 4695 for (e = elf_hash_table (info)->dynlocal; e ; e = e->next)
4696 if (e->input_indx == -1)
4697 break;
4698 if (e)
4699 elf_section_data (dynsymsec->output_section)->this_hdr.sh_info
4700 = e->dynindx;
4701 }
4b24dd1a 4702
3d4d4302 4703 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
22b75d0a
DM		 4704
4705 if (elf_hash_table (info)->dynamic_sections_created)
4706 {
4707 asection *splt;
22b75d0a 4708
3d4d4302 4709 splt = htab->elf.splt;
22b75d0a
DM		 4710 BFD_ASSERT (splt != NULL && sdyn != NULL);
4711
39817122
RS		 4712 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4713 return FALSE;
22b75d0a
DM		 4714
4715 /* Initialize the contents of the .plt section. */
4716 if (splt->size > 0)
4717 {
90c14f0c 4718 if (htab->elf.target_os == is_vxworks)
910600e9 4719 {
0e1862bb 4720 if (bfd_link_pic (info))
910600e9
RS		 4721 sparc_vxworks_finish_shared_plt (output_bfd, info);
4722 else
4723 sparc_vxworks_finish_exec_plt (output_bfd, info);
4724 }
22b75d0a
DM		 4725 else
4726 {
910600e9
RS		 4727 memset (splt->contents, 0, htab->plt_header_size);
4728 if (!ABI_64_P (output_bfd))
4729 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4730 splt->contents + splt->size - 4);
22b75d0a
DM		 4731 }
4732 }
4733
387f8054 4734 if (elf_section_data (splt->output_section) != NULL)
07d6d2b8 4735 elf_section_data (splt->output_section)->this_hdr.sh_entsize
90c14f0c
L		 4736 = ((htab->elf.target_os == is_vxworks
4737 || !ABI_64_P (output_bfd))
07d6d2b8 4738 ? 0 : htab->plt_entry_size);
22b75d0a
DM		 4739 }
4740
4741 /* Set the first entry in the global offset table to the address of
4742 the dynamic section. */
72fbc6e5 4743 if (htab->elf.sgot && htab->elf.sgot->size > 0)
22b75d0a
DM		 4744 {
4745 bfd_vma val = (sdyn ?
4746 sdyn->output_section->vma + sdyn->output_offset :
4747 0);
4748
72fbc6e5 4749 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
22b75d0a
DM		 4750 }
4751
72fbc6e5
DM		 4752 if (htab->elf.sgot)
4753 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
22b75d0a
DM		 4754 SPARC_ELF_WORD_BYTES (htab);
4755
d0c9aeb3
DM		 4756 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4757 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4758
bb1dd176
QZ		 4759 /* Fill PLT entries for undefined weak symbols in PIE. */
4760 if (bfd_link_pie (info))
4761 bfd_hash_traverse (&info->hash->table,
07d6d2b8
AM		 4762 pie_finish_undefweak_symbol,
4763 info);
22b75d0a
DM		 4764 return TRUE;
4765}
4766
4767\f
4768/* Set the right machine number for a SPARC ELF file. */
4769
4770bfd_boolean
4771_bfd_sparc_elf_object_p (bfd *abfd)
4772{
4f26fb3a
JM		 4773 obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
4774 obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
4775 obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
4776
4777 unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
4778 unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
07d6d2b8
AM		 4779 | ELF_SPARC_HWCAP_VIS3
4780 | ELF_SPARC_HWCAP_HPC);
4f26fb3a 4781 unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
07d6d2b8
AM		 4782 | ELF_SPARC_HWCAP_DES
4783 | ELF_SPARC_HWCAP_KASUMI
4784 | ELF_SPARC_HWCAP_CAMELLIA
4785 | ELF_SPARC_HWCAP_MD5
4786 | ELF_SPARC_HWCAP_SHA1
4787 | ELF_SPARC_HWCAP_SHA256
4788 | ELF_SPARC_HWCAP_SHA512
4789 | ELF_SPARC_HWCAP_MPMUL
4790 | ELF_SPARC_HWCAP_MONT
4791 | ELF_SPARC_HWCAP_CRC32C
4792 | ELF_SPARC_HWCAP_CBCOND
4793 | ELF_SPARC_HWCAP_PAUSE);
4f26fb3a 4794 unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
07d6d2b8 4795 | ELF_SPARC_HWCAP_IMA);
4f26fb3a 4796 unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
07d6d2b8
AM		 4797 | ELF_SPARC_HWCAP2_MWAIT
4798 | ELF_SPARC_HWCAP2_XMPMUL
4799 | ELF_SPARC_HWCAP2_XMONT);
64517994 4800 unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6
07d6d2b8
AM		 4801 | ELF_SPARC_HWCAP2_ONADDSUB
4802 | ELF_SPARC_HWCAP2_ONMUL
4803 | ELF_SPARC_HWCAP2_ONDIV
4804 | ELF_SPARC_HWCAP2_DICTUNP
4805 | ELF_SPARC_HWCAP2_FPCMPSHL
4806 | ELF_SPARC_HWCAP2_RLE
4807 | ELF_SPARC_HWCAP2_SHA3);
4f26fb3a 4808
22b75d0a
DM		 4809 if (ABI_64_P (abfd))
4810 {
4811 unsigned long mach = bfd_mach_sparc_v9;
4812
64517994 4813 if (hwcaps2->i & m8_hwcaps2_mask)
07d6d2b8 4814 mach = bfd_mach_sparc_v9m8;
64517994 4815 else if (hwcaps2->i & v9m_hwcaps2_mask)
07d6d2b8 4816 mach = bfd_mach_sparc_v9m;
4f26fb3a 4817 else if (hwcaps->i & v9v_hwcaps_mask)
07d6d2b8 4818 mach = bfd_mach_sparc_v9v;
4f26fb3a 4819 else if (hwcaps->i & v9e_hwcaps_mask)
07d6d2b8 4820 mach = bfd_mach_sparc_v9e;
4f26fb3a 4821 else if (hwcaps->i & v9d_hwcaps_mask)
07d6d2b8 4822 mach = bfd_mach_sparc_v9d;
4f26fb3a 4823 else if (hwcaps->i & v9c_hwcaps_mask)
07d6d2b8 4824 mach = bfd_mach_sparc_v9c;
4f26fb3a 4825 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
22b75d0a
DM		 4826 mach = bfd_mach_sparc_v9b;
4827 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4828 mach = bfd_mach_sparc_v9a;
4829 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4830 }
4831 else
4832 {
4833 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4834 {
07d6d2b8
AM		 4835 if (hwcaps2->i & m8_hwcaps2_mask)
4836 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4837 bfd_mach_sparc_v8plusm8);
4838 else if (hwcaps2->i & v9m_hwcaps2_mask)
4f26fb3a
JM		 4839 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4840 bfd_mach_sparc_v8plusm);
07d6d2b8
AM		 4841 else if (hwcaps->i & v9v_hwcaps_mask)
4842 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a 4843 bfd_mach_sparc_v8plusv);
07d6d2b8
AM		 4844 else if (hwcaps->i & v9e_hwcaps_mask)
4845 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a 4846 bfd_mach_sparc_v8pluse);
07d6d2b8
AM		 4847 else if (hwcaps->i & v9d_hwcaps_mask)
4848 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a 4849 bfd_mach_sparc_v8plusd);
07d6d2b8
AM		 4850 else if (hwcaps->i & v9c_hwcaps_mask)
4851 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4f26fb3a
JM		 4852 bfd_mach_sparc_v8plusc);
4853 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
22b75d0a
DM		 4854 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4855 bfd_mach_sparc_v8plusb);
4856 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4857 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4858 bfd_mach_sparc_v8plusa);
4859 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4860 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4861 bfd_mach_sparc_v8plus);
4862 else
4863 return FALSE;
4864 }
4865 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4866 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4867 bfd_mach_sparc_sparclite_le);
4868 else
4869 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4870 }
4871}
4872
4873/* Return address for Ith PLT stub in section PLT, for relocation REL
4874 or (bfd_vma) -1 if it should not be included. */
4875
4876bfd_vma
4877_bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
4878{
4879 if (ABI_64_P (plt->owner))
4880 {
4881 bfd_vma j;
4882
4883 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
4884 if (i < PLT64_LARGE_THRESHOLD)
4885 return plt->vma + i * PLT64_ENTRY_SIZE;
4886
4887 j = (i - PLT64_LARGE_THRESHOLD) % 160;
4888 i -= j;
4889 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
4890 }
4891 else
4892 return rel->address;
4893}
9e8c70f9
DM		 4894
4895/* Merge backend specific data from an object file to the output
4896 object file when linking. */
4897
4898bfd_boolean
50e03d47 4899_bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
9e8c70f9 4900{
50e03d47 4901 bfd *obfd = info->output_bfd;
9e8c70f9
DM		 4902 obj_attribute *in_attr, *in_attrs;
4903 obj_attribute *out_attr, *out_attrs;
4904
4905 if (!elf_known_obj_attributes_proc (obfd)[0].i)
4906 {
4907 /* This is the first object. Copy the attributes. */
4908 _bfd_elf_copy_obj_attributes (ibfd, obfd);
4909
4910 /* Use the Tag_null value to indicate the attributes have been
4911 initialized. */
4912 elf_known_obj_attributes_proc (obfd)[0].i = 1;
4913
4914 return TRUE;
4915 }
4916
4917 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4918 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4919
4920 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
4921 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
1b786873 4922
3d68f91c
JM		 4923 out_attr->i |= in_attr->i;
4924 out_attr->type = 1;
9e8c70f9 4925
3d68f91c
JM		 4926 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
4927 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
1b786873 4928
9e8c70f9 4929 out_attr->i |= in_attr->i;
209be8d2 4930 out_attr->type = 1;
9e8c70f9
DM		 4931
4932 /* Merge Tag_compatibility attributes and any common GNU ones. */
50e03d47 4933 _bfd_elf_merge_object_attributes (ibfd, info);
9e8c70f9
DM		 4934
4935 return TRUE;
4936}
GDB Binutils - Deliverables
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