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bfd/
[deliverable/binutils-gdb.git] / bfd / elfxx-sparc.c
CommitLineData
22b75d0a 1/* SPARC-specific support for ELF
4dfe6ac6 2 Copyright 2005, 2006, 2007, 2008, 2009, 2010 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,
55 PTR data, asection *input_section, bfd *output_bfd,
56 bfd_vma *prelocation, bfd_vma *pinsn)
57{
58 bfd_vma relocation;
59 reloc_howto_type *howto = reloc_entry->howto;
60
61 if (output_bfd != (bfd *) NULL
62 && (symbol->flags & BSF_SECTION_SYM) == 0
63 && (! howto->partial_inplace
64 || reloc_entry->addend == 0))
65 {
66 reloc_entry->address += input_section->output_offset;
67 return bfd_reloc_ok;
68 }
69
70 /* This works because partial_inplace is FALSE. */
71 if (output_bfd != NULL)
72 return bfd_reloc_continue;
73
74 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
75 return bfd_reloc_outofrange;
76
77 relocation = (symbol->value
78 + symbol->section->output_section->vma
79 + symbol->section->output_offset);
80 relocation += reloc_entry->addend;
81 if (howto->pc_relative)
82 {
83 relocation -= (input_section->output_section->vma
84 + input_section->output_offset);
85 relocation -= reloc_entry->address;
86 }
87
88 *prelocation = relocation;
89 *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
90 return bfd_reloc_other;
91}
92
93/* For unsupported relocs. */
94
95static bfd_reloc_status_type
96sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
97 arelent *reloc_entry ATTRIBUTE_UNUSED,
98 asymbol *symbol ATTRIBUTE_UNUSED,
99 PTR data ATTRIBUTE_UNUSED,
100 asection *input_section ATTRIBUTE_UNUSED,
101 bfd *output_bfd ATTRIBUTE_UNUSED,
102 char **error_message ATTRIBUTE_UNUSED)
103{
104 return bfd_reloc_notsupported;
105}
106
107/* Handle the WDISP16 reloc. */
108
109static bfd_reloc_status_type
110sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
111 PTR data, asection *input_section, bfd *output_bfd,
112 char **error_message ATTRIBUTE_UNUSED)
113{
114 bfd_vma relocation;
115 bfd_vma insn;
116 bfd_reloc_status_type status;
117
118 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
119 input_section, output_bfd, &relocation, &insn);
120 if (status != bfd_reloc_other)
121 return status;
122
123 insn &= ~ (bfd_vma) 0x303fff;
124 insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
125 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
126
127 if ((bfd_signed_vma) relocation < - 0x40000
128 || (bfd_signed_vma) relocation > 0x3ffff)
129 return bfd_reloc_overflow;
130 else
131 return bfd_reloc_ok;
132}
133
134/* Handle the HIX22 reloc. */
135
136static bfd_reloc_status_type
137sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
138 PTR data, asection *input_section, bfd *output_bfd,
139 char **error_message ATTRIBUTE_UNUSED)
140{
141 bfd_vma relocation;
142 bfd_vma insn;
143 bfd_reloc_status_type status;
144
145 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
146 input_section, output_bfd, &relocation, &insn);
147 if (status != bfd_reloc_other)
148 return status;
149
150 relocation ^= MINUS_ONE;
151 insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
152 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
153
154 if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
155 return bfd_reloc_overflow;
156 else
157 return bfd_reloc_ok;
158}
159
160/* Handle the LOX10 reloc. */
161
162static bfd_reloc_status_type
163sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
164 PTR data, asection *input_section, bfd *output_bfd,
165 char **error_message ATTRIBUTE_UNUSED)
166{
167 bfd_vma relocation;
168 bfd_vma insn;
169 bfd_reloc_status_type status;
170
171 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
172 input_section, output_bfd, &relocation, &insn);
173 if (status != bfd_reloc_other)
174 return status;
175
176 insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
177 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
178
179 return bfd_reloc_ok;
180}
181
182static reloc_howto_type _bfd_sparc_elf_howto_table[] =
183{
184 HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
185 HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
186 HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
187 HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
188 HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
189 HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
190 HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
191 HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
192 HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
193 HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
194 HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
195 HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
196 HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
197 HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
198 HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
199 HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
200 HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
201 HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
202 HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
203 HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
204 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),
205 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),
206 HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
207 HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
208 HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
209 HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
210 HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
211 HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
212 HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
213 HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
214 HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
215 HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
216 HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE),
217 HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE),
218 HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE),
219 HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE),
220 HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE),
221 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),
222 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),
223 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),
224 HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
225 HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
226 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),
227 HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
228 HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
229 HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
230 HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE),
231 HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE),
232 HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE),
233 HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE),
234 HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE),
235 HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE),
236 HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE),
237 HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE),
238 HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE),
239 HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
240 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),
241 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),
242 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),
243 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),
244 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),
245 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),
246 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),
247 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),
248 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),
249 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),
250 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),
251 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),
252 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),
253 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),
254 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),
255 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),
256 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),
257 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),
258 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),
259 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),
260 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),
261 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),
262 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		 263 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),
264 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),
265 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),
266 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),
267 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),
268 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),
22b75d0a 269};
d0c9aeb3
DM		 270static reloc_howto_type sparc_jmp_irel_howto =
271 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);
272static reloc_howto_type sparc_irelative_howto =
273 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		 274static reloc_howto_type sparc_vtinherit_howto =
275 HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE);
276static reloc_howto_type sparc_vtentry_howto =
277 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);
278static reloc_howto_type sparc_rev32_howto =
279 HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE);
280
22b75d0a
DM		 281reloc_howto_type *
282_bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
283 bfd_reloc_code_real_type code)
284{
679b7c76
DM		 285 /* We explicitly handle each relocation type in the switch
286 instead of using a lookup table for efficiency. */
22b75d0a
DM		 287 switch (code)
288 {
679b7c76
DM		 289 case BFD_RELOC_NONE:
290 return &_bfd_sparc_elf_howto_table[R_SPARC_NONE];
291
292 case BFD_RELOC_8:
293 return &_bfd_sparc_elf_howto_table[R_SPARC_8];
294
295 case BFD_RELOC_16:
296 return &_bfd_sparc_elf_howto_table[R_SPARC_16];
297
298 case BFD_RELOC_32:
299 return &_bfd_sparc_elf_howto_table[R_SPARC_32];
300
301 case BFD_RELOC_8_PCREL:
302 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP8];
303
304 case BFD_RELOC_16_PCREL:
305 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP16];
306
307 case BFD_RELOC_32_PCREL:
308 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP32];
309
310 case BFD_RELOC_32_PCREL_S2:
311 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP30];
312
313 case BFD_RELOC_SPARC_WDISP22:
314 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP22];
315
316 case BFD_RELOC_HI22:
317 return &_bfd_sparc_elf_howto_table[R_SPARC_HI22];
318
319 case BFD_RELOC_SPARC22:
320 return &_bfd_sparc_elf_howto_table[R_SPARC_22];
321
322 case BFD_RELOC_SPARC13:
323 return &_bfd_sparc_elf_howto_table[R_SPARC_13];
324
325 case BFD_RELOC_LO10:
326 return &_bfd_sparc_elf_howto_table[R_SPARC_LO10];
327
328 case BFD_RELOC_SPARC_GOT10:
329 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT10];
330
331 case BFD_RELOC_SPARC_GOT13:
332 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT13];
333
334 case BFD_RELOC_SPARC_GOT22:
335 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT22];
336
337 case BFD_RELOC_SPARC_PC10:
338 return &_bfd_sparc_elf_howto_table[R_SPARC_PC10];
339
340 case BFD_RELOC_SPARC_PC22:
341 return &_bfd_sparc_elf_howto_table[R_SPARC_PC22];
342
343 case BFD_RELOC_SPARC_WPLT30:
344 return &_bfd_sparc_elf_howto_table[R_SPARC_WPLT30];
345
346 case BFD_RELOC_SPARC_COPY:
347 return &_bfd_sparc_elf_howto_table[R_SPARC_COPY];
348
349 case BFD_RELOC_SPARC_GLOB_DAT:
350 return &_bfd_sparc_elf_howto_table[R_SPARC_GLOB_DAT];
351
352 case BFD_RELOC_SPARC_JMP_SLOT:
353 return &_bfd_sparc_elf_howto_table[R_SPARC_JMP_SLOT];
354
355 case BFD_RELOC_SPARC_RELATIVE:
356 return &_bfd_sparc_elf_howto_table[R_SPARC_RELATIVE];
357
358 case BFD_RELOC_SPARC_UA32:
359 return &_bfd_sparc_elf_howto_table[R_SPARC_UA32];
360
361 case BFD_RELOC_SPARC_PLT32:
362 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT32];
363
364 case BFD_RELOC_SPARC_10:
365 return &_bfd_sparc_elf_howto_table[R_SPARC_10];
366
367 case BFD_RELOC_SPARC_11:
368 return &_bfd_sparc_elf_howto_table[R_SPARC_11];
369
370 case BFD_RELOC_SPARC_64:
371 return &_bfd_sparc_elf_howto_table[R_SPARC_64];
372
373 case BFD_RELOC_SPARC_OLO10:
374 return &_bfd_sparc_elf_howto_table[R_SPARC_OLO10];
375
376 case BFD_RELOC_SPARC_HH22:
377 return &_bfd_sparc_elf_howto_table[R_SPARC_HH22];
378
379 case BFD_RELOC_SPARC_HM10:
380 return &_bfd_sparc_elf_howto_table[R_SPARC_HM10];
381
382 case BFD_RELOC_SPARC_LM22:
383 return &_bfd_sparc_elf_howto_table[R_SPARC_LM22];
384
385 case BFD_RELOC_SPARC_PC_HH22:
386 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HH22];
387
388 case BFD_RELOC_SPARC_PC_HM10:
389 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HM10];
390
391 case BFD_RELOC_SPARC_PC_LM22:
392 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_LM22];
393
394 case BFD_RELOC_SPARC_WDISP16:
395 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP16];
396
397 case BFD_RELOC_SPARC_WDISP19:
398 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP19];
399
400 case BFD_RELOC_SPARC_7:
401 return &_bfd_sparc_elf_howto_table[R_SPARC_7];
402
403 case BFD_RELOC_SPARC_5:
404 return &_bfd_sparc_elf_howto_table[R_SPARC_5];
405
406 case BFD_RELOC_SPARC_6:
407 return &_bfd_sparc_elf_howto_table[R_SPARC_6];
408
409 case BFD_RELOC_SPARC_DISP64:
410 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP64];
411
412 case BFD_RELOC_SPARC_PLT64:
413 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT64];
414
415 case BFD_RELOC_SPARC_HIX22:
416 return &_bfd_sparc_elf_howto_table[R_SPARC_HIX22];
417
418 case BFD_RELOC_SPARC_LOX10:
419 return &_bfd_sparc_elf_howto_table[R_SPARC_LOX10];
420
421 case BFD_RELOC_SPARC_H44:
422 return &_bfd_sparc_elf_howto_table[R_SPARC_H44];
423
424 case BFD_RELOC_SPARC_M44:
425 return &_bfd_sparc_elf_howto_table[R_SPARC_M44];
426
427 case BFD_RELOC_SPARC_L44:
428 return &_bfd_sparc_elf_howto_table[R_SPARC_L44];
429
430 case BFD_RELOC_SPARC_REGISTER:
431 return &_bfd_sparc_elf_howto_table[R_SPARC_REGISTER];
432
433 case BFD_RELOC_SPARC_UA64:
434 return &_bfd_sparc_elf_howto_table[R_SPARC_UA64];
435
436 case BFD_RELOC_SPARC_UA16:
437 return &_bfd_sparc_elf_howto_table[R_SPARC_UA16];
438
439 case BFD_RELOC_SPARC_TLS_GD_HI22:
440 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_HI22];
441
442 case BFD_RELOC_SPARC_TLS_GD_LO10:
443 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_LO10];
444
445 case BFD_RELOC_SPARC_TLS_GD_ADD:
446 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_ADD];
447
448 case BFD_RELOC_SPARC_TLS_GD_CALL:
449 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_CALL];
450
451 case BFD_RELOC_SPARC_TLS_LDM_HI22:
452 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_HI22];
453
454 case BFD_RELOC_SPARC_TLS_LDM_LO10:
455 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_LO10];
456
457 case BFD_RELOC_SPARC_TLS_LDM_ADD:
458 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_ADD];
459
460 case BFD_RELOC_SPARC_TLS_LDM_CALL:
461 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_CALL];
462
463 case BFD_RELOC_SPARC_TLS_LDO_HIX22:
464 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_HIX22];
465
466 case BFD_RELOC_SPARC_TLS_LDO_LOX10:
467 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_LOX10];
468
469 case BFD_RELOC_SPARC_TLS_LDO_ADD:
470 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_ADD];
471
472 case BFD_RELOC_SPARC_TLS_IE_HI22:
473 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_HI22];
474
475 case BFD_RELOC_SPARC_TLS_IE_LO10:
476 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LO10];
477
478 case BFD_RELOC_SPARC_TLS_IE_LD:
479 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LD];
480
481 case BFD_RELOC_SPARC_TLS_IE_LDX:
482 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LDX];
483
484 case BFD_RELOC_SPARC_TLS_IE_ADD:
485 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_ADD];
486
487 case BFD_RELOC_SPARC_TLS_LE_HIX22:
488 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_HIX22];
489
490 case BFD_RELOC_SPARC_TLS_LE_LOX10:
491 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_LOX10];
492
493 case BFD_RELOC_SPARC_TLS_DTPMOD32:
494 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD32];
495
496 case BFD_RELOC_SPARC_TLS_DTPMOD64:
497 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD64];
498
499 case BFD_RELOC_SPARC_TLS_DTPOFF32:
500 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF32];
501
502 case BFD_RELOC_SPARC_TLS_DTPOFF64:
503 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF64];
504
505 case BFD_RELOC_SPARC_TLS_TPOFF32:
506 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF32];
507
508 case BFD_RELOC_SPARC_TLS_TPOFF64:
509 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF64];
510
511 case BFD_RELOC_SPARC_GOTDATA_HIX22:
512 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_HIX22];
513
514 case BFD_RELOC_SPARC_GOTDATA_LOX10:
515 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_LOX10];
516
517 case BFD_RELOC_SPARC_GOTDATA_OP_HIX22:
518 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_HIX22];
519
520 case BFD_RELOC_SPARC_GOTDATA_OP_LOX10:
521 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_LOX10];
522
523 case BFD_RELOC_SPARC_GOTDATA_OP:
524 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP];
525
d0c9aeb3
DM		 526 case BFD_RELOC_SPARC_JMP_IREL:
527 return &sparc_jmp_irel_howto;
528
529 case BFD_RELOC_SPARC_IRELATIVE:
530 return &sparc_irelative_howto;
531
22b75d0a
DM		 532 case BFD_RELOC_VTABLE_INHERIT:
533 return &sparc_vtinherit_howto;
534
535 case BFD_RELOC_VTABLE_ENTRY:
536 return &sparc_vtentry_howto;
537
538 case BFD_RELOC_SPARC_REV32:
539 return &sparc_rev32_howto;
540
541 default:
679b7c76 542 break;
22b75d0a
DM		 543 }
544 bfd_set_error (bfd_error_bad_value);
545 return NULL;
546}
547
157090f7
AM		 548reloc_howto_type *
549_bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
550 const char *r_name)
551{
552 unsigned int i;
553
554 for (i = 0;
555 i < (sizeof (_bfd_sparc_elf_howto_table)
556 / sizeof (_bfd_sparc_elf_howto_table[0]));
557 i++)
558 if (_bfd_sparc_elf_howto_table[i].name != NULL
559 && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
560 return &_bfd_sparc_elf_howto_table[i];
561
562 if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
563 return &sparc_vtinherit_howto;
564 if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
565 return &sparc_vtentry_howto;
566 if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
567 return &sparc_rev32_howto;
568
569 return NULL;
570}
571
22b75d0a
DM		 572reloc_howto_type *
573_bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type)
574{
575 switch (r_type)
576 {
d0c9aeb3
DM		 577 case R_SPARC_JMP_IREL:
578 return &sparc_jmp_irel_howto;
579
580 case R_SPARC_IRELATIVE:
581 return &sparc_irelative_howto;
582
22b75d0a
DM		 583 case R_SPARC_GNU_VTINHERIT:
584 return &sparc_vtinherit_howto;
585
586 case R_SPARC_GNU_VTENTRY:
587 return &sparc_vtentry_howto;
588
589 case R_SPARC_REV32:
590 return &sparc_rev32_howto;
591
592 default:
d0fb9a8d
JJ		 593 if (r_type >= (unsigned int) R_SPARC_max_std)
594 {
595 (*_bfd_error_handler) (_("invalid relocation type %d"),
596 (int) r_type);
597 r_type = R_SPARC_NONE;
598 }
22b75d0a
DM		 599 return &_bfd_sparc_elf_howto_table[r_type];
600 }
601}
602
603/* Both 32-bit and 64-bit sparc encode this in an identical manner,
604 so just take advantage of that. */
605#define SPARC_ELF_R_TYPE(r_info) \
606 ((r_info) & 0xff)
607
608void
609_bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
610 Elf_Internal_Rela *dst)
611{
612 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
613
614 cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type);
615}
616\f
617
618/* The nop opcode we use. */
619#define SPARC_NOP 0x01000000
620
621#define SPARC_INSN_BYTES 4
622
623/* The SPARC linker needs to keep track of the number of relocs that it
624 decides to copy as dynamic relocs in check_relocs for each symbol.
625 This is so that it can later discard them if they are found to be
626 unnecessary. We store the information in a field extending the
627 regular ELF linker hash table. */
628
629struct _bfd_sparc_elf_dyn_relocs
630{
631 struct _bfd_sparc_elf_dyn_relocs *next;
632
633 /* The input section of the reloc. */
634 asection *sec;
635
636 /* Total number of relocs copied for the input section. */
637 bfd_size_type count;
638
639 /* Number of pc-relative relocs copied for the input section. */
640 bfd_size_type pc_count;
641};
642
643/* SPARC ELF linker hash entry. */
644
645struct _bfd_sparc_elf_link_hash_entry
646{
647 struct elf_link_hash_entry elf;
648
649 /* Track dynamic relocs copied for this symbol. */
650 struct _bfd_sparc_elf_dyn_relocs *dyn_relocs;
651
652#define GOT_UNKNOWN 0
653#define GOT_NORMAL 1
654#define GOT_TLS_GD 2
655#define GOT_TLS_IE 3
656 unsigned char tls_type;
657};
658
659#define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
660
661struct _bfd_sparc_elf_obj_tdata
662{
663 struct elf_obj_tdata root;
664
665 /* tls_type for each local got entry. */
666 char *local_got_tls_type;
667
668 /* TRUE if TLS GD relocs has been seen for this object. */
669 bfd_boolean has_tlsgd;
670};
671
672#define _bfd_sparc_elf_tdata(abfd) \
673 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
674
675#define _bfd_sparc_elf_local_got_tls_type(abfd) \
676 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
677
0ffa91dd
NC		 678#define is_sparc_elf(bfd) \
679 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
680 && elf_tdata (bfd) != NULL \
4dfe6ac6 681 && elf_object_id (bfd) == SPARC_ELF_DATA)
0ffa91dd 682
22b75d0a
DM		 683bfd_boolean
684_bfd_sparc_elf_mkobject (bfd *abfd)
685{
0ffa91dd 686 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
4dfe6ac6 687 SPARC_ELF_DATA);
22b75d0a
DM		 688}
689
690static void
91d6fa6a 691sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 692{
91d6fa6a 693 bfd_put_32 (abfd, val, ptr);
22b75d0a
DM		 694}
695
696static void
91d6fa6a 697sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 698{
91d6fa6a 699 bfd_put_64 (abfd, val, ptr);
22b75d0a
DM		 700}
701
702static void
39817122 703sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
22b75d0a 704{
39817122
RS		 705 const struct elf_backend_data *bed;
706 bfd_byte *loc;
22b75d0a 707
39817122
RS		 708 bed = get_elf_backend_data (abfd);
709 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
710 bed->s->swap_reloca_out (abfd, rel, loc);
22b75d0a
DM		 711}
712
713static bfd_vma
e459dc7b 714sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 715 bfd_vma rel_index ATTRIBUTE_UNUSED,
e459dc7b 716 bfd_vma type ATTRIBUTE_UNUSED)
22b75d0a 717{
91d6fa6a 718 return ELF64_R_INFO (rel_index,
22b75d0a
DM		 719 (in_rel ?
720 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
721 type) : type));
722}
723
724static bfd_vma
725sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 726 bfd_vma rel_index, bfd_vma type)
22b75d0a 727{
91d6fa6a 728 return ELF32_R_INFO (rel_index, type);
22b75d0a
DM		 729}
730
731static bfd_vma
732sparc_elf_r_symndx_64 (bfd_vma r_info)
733{
e8be8da4
DM		 734 bfd_vma r_symndx = ELF32_R_SYM (r_info);
735 return (r_symndx >> 24);
22b75d0a
DM		 736}
737
738static bfd_vma
739sparc_elf_r_symndx_32 (bfd_vma r_info)
740{
741 return ELF32_R_SYM (r_info);
742}
743
744/* PLT/GOT stuff */
745
746#define PLT32_ENTRY_SIZE 12
747#define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
748
749/* The first four entries in a 32-bit procedure linkage table are reserved,
750 and the initial contents are unimportant (we zero them out).
751 Subsequent entries look like this. See the SVR4 ABI SPARC
752 supplement to see how this works. */
753
754/* sethi %hi(.-.plt0),%g1. We fill in the address later. */
755#define PLT32_ENTRY_WORD0 0x03000000
756/* b,a .plt0. We fill in the offset later. */
757#define PLT32_ENTRY_WORD1 0x30800000
758/* nop. */
759#define PLT32_ENTRY_WORD2 SPARC_NOP
760
761static int
762sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
763 bfd_vma max ATTRIBUTE_UNUSED,
764 bfd_vma *r_offset)
765{
766 bfd_put_32 (output_bfd,
767 PLT32_ENTRY_WORD0 + offset,
768 splt->contents + offset);
769 bfd_put_32 (output_bfd,
770 (PLT32_ENTRY_WORD1
771 + (((- (offset + 4)) >> 2) & 0x3fffff)),
772 splt->contents + offset + 4);
773 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
774 splt->contents + offset + 8);
775
776 *r_offset = offset;
777
778 return offset / PLT32_ENTRY_SIZE - 4;
779}
780
781/* Both the headers and the entries are icache aligned. */
782#define PLT64_ENTRY_SIZE 32
783#define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
784#define PLT64_LARGE_THRESHOLD 32768
785
786static int
787sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
788 bfd_vma max, bfd_vma *r_offset)
789{
790 unsigned char *entry = splt->contents + offset;
791 const unsigned int nop = SPARC_NOP;
91d6fa6a 792 int plt_index;
22b75d0a
DM		 793
794 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
795 {
796 unsigned int sethi, ba;
797
798 *r_offset = offset;
799
91d6fa6a 800 plt_index = (offset / PLT64_ENTRY_SIZE);
22b75d0a 801
91d6fa6a 802 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
22b75d0a
DM		 803 ba = 0x30680000
804 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
805
806 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
807 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
808 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
809 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
810 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
811 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
812 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
813 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
814 }
815 else
816 {
817 unsigned char *ptr;
818 unsigned int ldx;
819 int block, last_block, ofs, last_ofs, chunks_this_block;
820 const int insn_chunk_size = (6 * 4);
821 const int ptr_chunk_size = (1 * 8);
822 const int entries_per_block = 160;
823 const int block_size = entries_per_block * (insn_chunk_size
824 + ptr_chunk_size);
825
826 /* Entries 32768 and higher are grouped into blocks of 160.
827 The blocks are further subdivided into 160 sequences of
828 6 instructions and 160 pointers. If a block does not require
829 the full 160 entries, let's say it requires N, then there
830 will be N sequences of 6 instructions and N pointers. */
831
832 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
833 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
834
835 block = offset / block_size;
836 last_block = max / block_size;
837 if (block != last_block)
838 {
839 chunks_this_block = 160;
840 }
841 else
842 {
843 last_ofs = max % block_size;
844 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
845 }
846
847 ofs = offset % block_size;
848
91d6fa6a 849 plt_index = (PLT64_LARGE_THRESHOLD +
22b75d0a
DM		 850 (block * 160) +
851 (ofs / insn_chunk_size));
852
853 ptr = splt->contents
854 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
855 + (block * block_size)
856 + (chunks_this_block * insn_chunk_size)
857 + (ofs / insn_chunk_size) * ptr_chunk_size;
858
859 *r_offset = (bfd_vma) (ptr - splt->contents);
860
861 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
862
863 /* mov %o7,%g5
864 call .+8
865 nop
866 ldx [%o7+P],%g1
867 jmpl %o7+%g1,%g1
868 mov %g5,%o7 */
869 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
870 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
871 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
872 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
873 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
874 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
875
876 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
877 }
878
91d6fa6a 879 return plt_index - 4;
22b75d0a
DM		 880}
881
910600e9
RS		 882/* The format of the first PLT entry in a VxWorks executable. */
883static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
884 {
885 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
886 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
887 0xc4008000, /* ld [ %g2 ], %g2 */
888 0x81c08000, /* jmp %g2 */
889 0x01000000 /* nop */
890 };
891
892/* The format of subsequent PLT entries. */
893static const bfd_vma sparc_vxworks_exec_plt_entry[] =
894 {
895 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
896 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
897 0xc2004000, /* ld [ %g1 ], %g1 */
898 0x81c04000, /* jmp %g1 */
899 0x01000000, /* nop */
900 0x03000000, /* sethi %hi(f@pltindex), %g1 */
901 0x10800000, /* b _PLT_resolve */
902 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
903 };
904
905/* The format of the first PLT entry in a VxWorks shared object. */
906static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
907 {
908 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
909 0x81c08000, /* jmp %g2 */
910 0x01000000 /* nop */
911 };
912
913/* The format of subsequent PLT entries. */
914static const bfd_vma sparc_vxworks_shared_plt_entry[] =
915 {
916 0x03000000, /* sethi %hi(f@got), %g1 */
917 0x82106000, /* or %g1, %lo(f@got), %g1 */
918 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
919 0x81c04000, /* jmp %g1 */
920 0x01000000, /* nop */
921 0x03000000, /* sethi %hi(f@pltindex), %g1 */
922 0x10800000, /* b _PLT_resolve */
923 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
924 };
925
22b75d0a
DM		 926#define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
927 htab->put_word(bfd, val, ptr)
928
22b75d0a
DM		 929#define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
930 htab->r_info(in_rel, index, type)
931
932#define SPARC_ELF_R_SYMNDX(htab, r_info) \
933 htab->r_symndx(r_info)
934
935#define SPARC_ELF_WORD_BYTES(htab) \
936 htab->bytes_per_word
937
938#define SPARC_ELF_RELA_BYTES(htab) \
939 htab->bytes_per_rela
940
941#define SPARC_ELF_DTPOFF_RELOC(htab) \
942 htab->dtpoff_reloc
943
944#define SPARC_ELF_DTPMOD_RELOC(htab) \
945 htab->dtpmod_reloc
946
947#define SPARC_ELF_TPOFF_RELOC(htab) \
948 htab->tpoff_reloc
949
950#define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
951 htab->build_plt_entry (obfd, splt, off, max, r_off)
952
953/* Create an entry in an SPARC ELF linker hash table. */
954
955static struct bfd_hash_entry *
956link_hash_newfunc (struct bfd_hash_entry *entry,
957 struct bfd_hash_table *table, const char *string)
958{
959 /* Allocate the structure if it has not already been allocated by a
960 subclass. */
961 if (entry == NULL)
962 {
963 entry = bfd_hash_allocate (table,
964 sizeof (struct _bfd_sparc_elf_link_hash_entry));
965 if (entry == NULL)
966 return entry;
967 }
968
969 /* Call the allocation method of the superclass. */
970 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
971 if (entry != NULL)
972 {
973 struct _bfd_sparc_elf_link_hash_entry *eh;
974
975 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
976 eh->dyn_relocs = NULL;
977 eh->tls_type = GOT_UNKNOWN;
978 }
979
980 return entry;
981}
982
983/* The name of the dynamic interpreter. This is put in the .interp
984 section. */
985
986#define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
987#define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
988
d0c9aeb3
DM		 989/* Compute a hash of a local hash entry. We use elf_link_hash_entry
990 for local symbol so that we can handle local STT_GNU_IFUNC symbols
991 as global symbol. We reuse indx and dynstr_index for local symbol
992 hash since they aren't used by global symbols in this backend. */
993
994static hashval_t
995elf_sparc_local_htab_hash (const void *ptr)
996{
997 struct elf_link_hash_entry *h
998 = (struct elf_link_hash_entry *) ptr;
999 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1000}
1001
1002/* Compare local hash entries. */
1003
1004static int
1005elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1006{
1007 struct elf_link_hash_entry *h1
1008 = (struct elf_link_hash_entry *) ptr1;
1009 struct elf_link_hash_entry *h2
1010 = (struct elf_link_hash_entry *) ptr2;
1011
1012 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1013}
1014
1015/* Find and/or create a hash entry for local symbol. */
1016
1017static struct elf_link_hash_entry *
1018elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1019 bfd *abfd, const Elf_Internal_Rela *rel,
1020 bfd_boolean create)
1021{
1022 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1023 asection *sec = abfd->sections;
1024 unsigned long r_symndx;
1025 hashval_t h;
1026 void **slot;
1027
1028 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1029 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1030
1031 e.elf.indx = sec->id;
1032 e.elf.dynstr_index = r_symndx;
1033 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1034 create ? INSERT : NO_INSERT);
1035
1036 if (!slot)
1037 return NULL;
1038
1039 if (*slot)
1040 {
1041 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1042 return &ret->elf;
1043 }
1044
1045 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1046 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1047 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1048 if (ret)
1049 {
1050 memset (ret, 0, sizeof (*ret));
1051 ret->elf.indx = sec->id;
1052 ret->elf.dynstr_index = r_symndx;
1053 ret->elf.dynindx = -1;
1054 ret->elf.plt.offset = (bfd_vma) -1;
1055 ret->elf.got.offset = (bfd_vma) -1;
1056 *slot = ret;
1057 }
1058 return &ret->elf;
1059}
1060
22b75d0a
DM		 1061/* Create a SPARC ELF linker hash table. */
1062
1063struct bfd_link_hash_table *
1064_bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1065{
1066 struct _bfd_sparc_elf_link_hash_table *ret;
1067 bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1068
1069 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1070 if (ret == NULL)
1071 return NULL;
1072
1073 if (ABI_64_P (abfd))
1074 {
1075 ret->put_word = sparc_put_word_64;
22b75d0a
DM		 1076 ret->r_info = sparc_elf_r_info_64;
1077 ret->r_symndx = sparc_elf_r_symndx_64;
22b75d0a
DM		 1078 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1079 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1080 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1081 ret->word_align_power = 3;
1082 ret->align_power_max = 4;
1083 ret->bytes_per_word = 8;
1084 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
c2e70a82 1085 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
22b75d0a 1086 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1087
1088 ret->build_plt_entry = sparc64_plt_entry_build;
1089 ret->plt_header_size = PLT64_HEADER_SIZE;
1090 ret->plt_entry_size = PLT64_ENTRY_SIZE;
22b75d0a
DM		 1091 }
1092 else
1093 {
1094 ret->put_word = sparc_put_word_32;
22b75d0a
DM		 1095 ret->r_info = sparc_elf_r_info_32;
1096 ret->r_symndx = sparc_elf_r_symndx_32;
22b75d0a
DM		 1097 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1098 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1099 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1100 ret->word_align_power = 2;
1101 ret->align_power_max = 3;
1102 ret->bytes_per_word = 4;
1103 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
c2e70a82 1104 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
22b75d0a 1105 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1106
1107 ret->build_plt_entry = sparc32_plt_entry_build;
1108 ret->plt_header_size = PLT32_HEADER_SIZE;
1109 ret->plt_entry_size = PLT32_ENTRY_SIZE;
22b75d0a
DM		 1110 }
1111
66eb6687 1112 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC		 1113 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1114 SPARC_ELF_DATA))
22b75d0a
DM		 1115 {
1116 free (ret);
1117 return NULL;
1118 }
1119
d0c9aeb3
DM		 1120 ret->loc_hash_table = htab_try_create (1024,
1121 elf_sparc_local_htab_hash,
1122 elf_sparc_local_htab_eq,
1123 NULL);
1124 ret->loc_hash_memory = objalloc_create ();
1125 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1126 {
1127 free (ret);
1128 return NULL;
1129 }
1130
22b75d0a
DM		 1131 return &ret->elf.root;
1132}
1133
d0c9aeb3
DM		 1134/* Destroy a SPARC ELF linker hash table. */
1135
1136void
1137_bfd_sparc_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
1138{
1139 struct _bfd_sparc_elf_link_hash_table *htab
1140 = (struct _bfd_sparc_elf_link_hash_table *) hash;
1141
1142 if (htab->loc_hash_table)
1143 htab_delete (htab->loc_hash_table);
1144 if (htab->loc_hash_memory)
1145 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
1146 _bfd_generic_link_hash_table_free (hash);
1147}
1148
22b75d0a
DM		 1149/* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1150 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1151 hash table. */
1152
1153bfd_boolean
1154_bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1155 struct bfd_link_info *info)
1156{
1157 struct _bfd_sparc_elf_link_hash_table *htab;
1158
1159 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 1160 BFD_ASSERT (htab != NULL);
1161
22b75d0a
DM		 1162 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1163 return FALSE;
1164
22b75d0a
DM		 1165 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
1166 if (!info->shared)
1167 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
1168
910600e9
RS		 1169 if (htab->is_vxworks)
1170 {
1171 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1172 return FALSE;
1173 if (info->shared)
1174 {
1175 htab->plt_header_size
1176 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1177 htab->plt_entry_size
1178 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1179 }
1180 else
1181 {
1182 htab->plt_header_size
1183 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1184 htab->plt_entry_size
1185 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1186 }
1187 }
910600e9 1188
72fbc6e5 1189 if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss
22b75d0a
DM		 1190 || (!info->shared && !htab->srelbss))
1191 abort ();
1192
1193 return TRUE;
1194}
1195
d0c9aeb3
DM		 1196static bfd_boolean
1197create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1198{
1199 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1200 struct elf_link_hash_table *htab = elf_hash_table (info);
1201 flagword flags, pltflags;
1202 asection *s;
1203
1204 if (htab->irelifunc != NULL || htab->iplt != NULL)
1205 return TRUE;
1206
1207 flags = bed->dynamic_sec_flags;
1208 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1209
1210 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1211 if (s == NULL
1212 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1213 return FALSE;
1214 htab->iplt = s;
1215
1216 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1217 flags | SEC_READONLY);
1218 if (s == NULL
1219 || ! bfd_set_section_alignment (abfd, s,
1220 bed->s->log_file_align))
1221 return FALSE;
1222 htab->irelplt = s;
1223
1224 return TRUE;
1225}
1226
22b75d0a
DM		 1227/* Copy the extra info we tack onto an elf_link_hash_entry. */
1228
1229void
fcfa13d2 1230_bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
22b75d0a
DM		 1231 struct elf_link_hash_entry *dir,
1232 struct elf_link_hash_entry *ind)
1233{
1234 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1235
1236 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1237 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1238
1239 if (eind->dyn_relocs != NULL)
1240 {
1241 if (edir->dyn_relocs != NULL)
1242 {
1243 struct _bfd_sparc_elf_dyn_relocs **pp;
1244 struct _bfd_sparc_elf_dyn_relocs *p;
1245
fcfa13d2 1246 /* Add reloc counts against the indirect sym to the direct sym
22b75d0a
DM		 1247 list. Merge any entries against the same section. */
1248 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1249 {
1250 struct _bfd_sparc_elf_dyn_relocs *q;
1251
1252 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1253 if (q->sec == p->sec)
1254 {
1255 q->pc_count += p->pc_count;
1256 q->count += p->count;
1257 *pp = p->next;
1258 break;
1259 }
1260 if (q == NULL)
1261 pp = &p->next;
1262 }
1263 *pp = edir->dyn_relocs;
1264 }
1265
1266 edir->dyn_relocs = eind->dyn_relocs;
1267 eind->dyn_relocs = NULL;
1268 }
1269
1270 if (ind->root.type == bfd_link_hash_indirect
1271 && dir->got.refcount <= 0)
1272 {
1273 edir->tls_type = eind->tls_type;
1274 eind->tls_type = GOT_UNKNOWN;
1275 }
fcfa13d2 1276 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
22b75d0a
DM		 1277}
1278
1279static int
1280sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1281 int r_type, int is_local)
1282{
1283 if (! ABI_64_P (abfd)
1284 && r_type == R_SPARC_TLS_GD_HI22
1285 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1286 r_type = R_SPARC_REV32;
1287
1288 if (info->shared)
1289 return r_type;
1290
1291 switch (r_type)
1292 {
1293 case R_SPARC_TLS_GD_HI22:
1294 if (is_local)
1295 return R_SPARC_TLS_LE_HIX22;
1296 return R_SPARC_TLS_IE_HI22;
1297 case R_SPARC_TLS_GD_LO10:
1298 if (is_local)
1299 return R_SPARC_TLS_LE_LOX10;
1300 return R_SPARC_TLS_IE_LO10;
1301 case R_SPARC_TLS_IE_HI22:
1302 if (is_local)
1303 return R_SPARC_TLS_LE_HIX22;
1304 return r_type;
1305 case R_SPARC_TLS_IE_LO10:
1306 if (is_local)
1307 return R_SPARC_TLS_LE_LOX10;
1308 return r_type;
1309 case R_SPARC_TLS_LDM_HI22:
1310 return R_SPARC_TLS_LE_HIX22;
1311 case R_SPARC_TLS_LDM_LO10:
1312 return R_SPARC_TLS_LE_LOX10;
1313 }
1314
1315 return r_type;
1316}
1317\f
1318/* Look through the relocs for a section during the first phase, and
1319 allocate space in the global offset table or procedure linkage
1320 table. */
1321
1322bfd_boolean
1323_bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1324 asection *sec, const Elf_Internal_Rela *relocs)
1325{
1326 struct _bfd_sparc_elf_link_hash_table *htab;
1327 Elf_Internal_Shdr *symtab_hdr;
1328 struct elf_link_hash_entry **sym_hashes;
22b75d0a
DM		 1329 const Elf_Internal_Rela *rel;
1330 const Elf_Internal_Rela *rel_end;
1331 asection *sreloc;
1332 int num_relocs;
1333 bfd_boolean checked_tlsgd = FALSE;
1334
1335 if (info->relocatable)
1336 return TRUE;
1337
1338 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1339 BFD_ASSERT (htab != NULL);
0ffa91dd 1340 symtab_hdr = &elf_symtab_hdr (abfd);
22b75d0a 1341 sym_hashes = elf_sym_hashes (abfd);
22b75d0a
DM		 1342
1343 sreloc = NULL;
1344
1345 if (ABI_64_P (abfd))
d4730f92 1346 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
22b75d0a
DM		 1347 else
1348 num_relocs = sec->reloc_count;
0ffa91dd
NC		 1349
1350 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1351
d0c9aeb3
DM		 1352 if (htab->elf.dynobj == NULL)
1353 htab->elf.dynobj = abfd;
1354 if (!create_ifunc_sections (htab->elf.dynobj, info))
1355 return FALSE;
1356
22b75d0a
DM		 1357 rel_end = relocs + num_relocs;
1358 for (rel = relocs; rel < rel_end; rel++)
1359 {
1360 unsigned int r_type;
1361 unsigned long r_symndx;
1362 struct elf_link_hash_entry *h;
d0c9aeb3 1363 Elf_Internal_Sym *isym;
22b75d0a
DM		 1364
1365 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1366 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1367
1368 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1369 {
1370 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
1371 abfd, r_symndx);
1372 return FALSE;
1373 }
1374
d0c9aeb3 1375 isym = NULL;
22b75d0a 1376 if (r_symndx < symtab_hdr->sh_info)
d0c9aeb3
DM		 1377 {
1378 /* A local symbol. */
1379 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1380 abfd, r_symndx);
1381 if (isym == NULL)
1382 return FALSE;
1383
1384 /* Check relocation against local STT_GNU_IFUNC symbol. */
1385 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1386 {
1387 h = elf_sparc_get_local_sym_hash (htab, abfd, rel,
1388 TRUE);
1389 if (h == NULL)
1390 return FALSE;
1391
1392 /* Fake a STT_GNU_IFUNC symbol. */
1393 h->type = STT_GNU_IFUNC;
1394 h->def_regular = 1;
1395 h->ref_regular = 1;
1396 h->forced_local = 1;
1397 h->root.type = bfd_link_hash_defined;
1398 }
1399 else
1400 h = NULL;
1401 }
22b75d0a 1402 else
973a3492
L		 1403 {
1404 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1405 while (h->root.type == bfd_link_hash_indirect
1406 || h->root.type == bfd_link_hash_warning)
1407 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1408 }
22b75d0a 1409
d0c9aeb3
DM		 1410 if (h && h->type == STT_GNU_IFUNC)
1411 {
1412 if (h->def_regular)
b48ca1d4
DM		 1413 {
1414 h->ref_regular = 1;
1415 h->plt.refcount += 1;
1416 }
d0c9aeb3
DM		 1417 }
1418
22b75d0a
DM		 1419 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1420 with R_SPARC_TLS_GD_HI22. */
1421 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1422 switch (r_type)
1423 {
1424 case R_SPARC_TLS_GD_HI22:
1425 {
1426 const Elf_Internal_Rela *relt;
1427
1428 for (relt = rel + 1; relt < rel_end; relt++)
1429 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1430 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1431 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1432 break;
1433 checked_tlsgd = TRUE;
1434 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1435 }
1436 break;
1437 case R_SPARC_TLS_GD_LO10:
1438 case R_SPARC_TLS_GD_ADD:
1439 case R_SPARC_TLS_GD_CALL:
1440 checked_tlsgd = TRUE;
1441 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1442 break;
1443 }
1444
1445 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
1446 switch (r_type)
1447 {
1448 case R_SPARC_TLS_LDM_HI22:
1449 case R_SPARC_TLS_LDM_LO10:
1450 htab->tls_ldm_got.refcount += 1;
1451 break;
1452
1453 case R_SPARC_TLS_LE_HIX22:
1454 case R_SPARC_TLS_LE_LOX10:
1455 if (info->shared)
1456 goto r_sparc_plt32;
1457 break;
1458
1459 case R_SPARC_TLS_IE_HI22:
1460 case R_SPARC_TLS_IE_LO10:
1461 if (info->shared)
1462 info->flags |= DF_STATIC_TLS;
1463 /* Fall through */
1464
1465 case R_SPARC_GOT10:
1466 case R_SPARC_GOT13:
1467 case R_SPARC_GOT22:
739f7f82
DM		 1468 case R_SPARC_GOTDATA_HIX22:
1469 case R_SPARC_GOTDATA_LOX10:
1470 case R_SPARC_GOTDATA_OP_HIX22:
1471 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1472 case R_SPARC_TLS_GD_HI22:
1473 case R_SPARC_TLS_GD_LO10:
1474 /* This symbol requires a global offset table entry. */
1475 {
1476 int tls_type, old_tls_type;
1477
1478 switch (r_type)
1479 {
1480 default:
1481 case R_SPARC_GOT10:
1482 case R_SPARC_GOT13:
1483 case R_SPARC_GOT22:
739f7f82
DM		 1484 case R_SPARC_GOTDATA_OP_HIX22:
1485 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1486 tls_type = GOT_NORMAL;
1487 break;
1488 case R_SPARC_TLS_GD_HI22:
1489 case R_SPARC_TLS_GD_LO10:
1490 tls_type = GOT_TLS_GD;
1491 break;
1492 case R_SPARC_TLS_IE_HI22:
1493 case R_SPARC_TLS_IE_LO10:
1494 tls_type = GOT_TLS_IE;
1495 break;
1496 }
1497
1498 if (h != NULL)
1499 {
1500 h->got.refcount += 1;
1501 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1502 }
1503 else
1504 {
1505 bfd_signed_vma *local_got_refcounts;
1506
1507 /* This is a global offset table entry for a local symbol. */
1508 local_got_refcounts = elf_local_got_refcounts (abfd);
1509 if (local_got_refcounts == NULL)
1510 {
1511 bfd_size_type size;
1512
1513 size = symtab_hdr->sh_info;
1514 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1515 local_got_refcounts = ((bfd_signed_vma *)
1516 bfd_zalloc (abfd, size));
1517 if (local_got_refcounts == NULL)
1518 return FALSE;
1519 elf_local_got_refcounts (abfd) = local_got_refcounts;
1520 _bfd_sparc_elf_local_got_tls_type (abfd)
1521 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1522 }
00c50991
DM		 1523 switch (r_type)
1524 {
1525 case R_SPARC_GOTDATA_OP_HIX22:
1526 case R_SPARC_GOTDATA_OP_LOX10:
1527 break;
1528
1529 default:
1530 local_got_refcounts[r_symndx] += 1;
1531 break;
1532 }
22b75d0a
DM		 1533 old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1534 }
1535
1536 /* If a TLS symbol is accessed using IE at least once,
1537 there is no point to use dynamic model for it. */
1538 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1539 && (old_tls_type != GOT_TLS_GD
1540 || tls_type != GOT_TLS_IE))
1541 {
1542 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1543 tls_type = old_tls_type;
1544 else
1545 {
1546 (*_bfd_error_handler)
1547 (_("%B: `%s' accessed both as normal and thread local symbol"),
1548 abfd, h ? h->root.root.string : "<local>");
1549 return FALSE;
1550 }
1551 }
1552
1553 if (old_tls_type != tls_type)
1554 {
1555 if (h != NULL)
1556 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1557 else
1558 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1559 }
1560 }
1561
72fbc6e5 1562 if (htab->elf.sgot == NULL)
22b75d0a 1563 {
72fbc6e5 1564 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
22b75d0a
DM		 1565 return FALSE;
1566 }
1567 break;
1568
1569 case R_SPARC_TLS_GD_CALL:
1570 case R_SPARC_TLS_LDM_CALL:
1571 if (info->shared)
1572 {
1573 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1574 __tls_get_addr. */
1575 struct bfd_link_hash_entry *bh = NULL;
1576 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1577 "__tls_get_addr", 0,
1578 bfd_und_section_ptr, 0,
1579 NULL, FALSE, FALSE,
1580 &bh))
1581 return FALSE;
1582 h = (struct elf_link_hash_entry *) bh;
1583 }
1584 else
1585 break;
1586 /* Fall through */
1587
1588 case R_SPARC_PLT32:
1589 case R_SPARC_WPLT30:
1590 case R_SPARC_HIPLT22:
1591 case R_SPARC_LOPLT10:
1592 case R_SPARC_PCPLT32:
1593 case R_SPARC_PCPLT22:
1594 case R_SPARC_PCPLT10:
1595 case R_SPARC_PLT64:
1596 /* This symbol requires a procedure linkage table entry. We
1597 actually build the entry in adjust_dynamic_symbol,
1598 because this might be a case of linking PIC code without
1599 linking in any dynamic objects, in which case we don't
1600 need to generate a procedure linkage table after all. */
1601
1602 if (h == NULL)
1603 {
1604 if (! ABI_64_P (abfd))
1605 {
1606 /* The Solaris native assembler will generate a WPLT30
1607 reloc for a local symbol if you assemble a call from
1608 one section to another when using -K pic. We treat
1609 it as WDISP30. */
1610 if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
1611 goto r_sparc_plt32;
1612 break;
1613 }
af1fb11f
NC		 1614 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1615 else if (r_type == R_SPARC_WPLT30)
1616 break;
22b75d0a
DM		 1617
1618 /* It does not make sense to have a procedure linkage
1619 table entry for a local symbol. */
1620 bfd_set_error (bfd_error_bad_value);
1621 return FALSE;
1622 }
1623
1624 h->needs_plt = 1;
1625
1626 {
1627 int this_r_type;
1628
1629 this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
1630 if (this_r_type == R_SPARC_PLT32
1631 || this_r_type == R_SPARC_PLT64)
1632 goto r_sparc_plt32;
1633 }
1634 h->plt.refcount += 1;
1635 break;
1636
1637 case R_SPARC_PC10:
1638 case R_SPARC_PC22:
1639 case R_SPARC_PC_HH22:
1640 case R_SPARC_PC_HM10:
1641 case R_SPARC_PC_LM22:
1642 if (h != NULL)
1643 h->non_got_ref = 1;
1644
1645 if (h != NULL
1646 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1647 break;
1648 /* Fall through. */
1649
1650 case R_SPARC_DISP8:
1651 case R_SPARC_DISP16:
1652 case R_SPARC_DISP32:
1653 case R_SPARC_DISP64:
1654 case R_SPARC_WDISP30:
1655 case R_SPARC_WDISP22:
1656 case R_SPARC_WDISP19:
1657 case R_SPARC_WDISP16:
1658 case R_SPARC_8:
1659 case R_SPARC_16:
1660 case R_SPARC_32:
1661 case R_SPARC_HI22:
1662 case R_SPARC_22:
1663 case R_SPARC_13:
1664 case R_SPARC_LO10:
1665 case R_SPARC_UA16:
1666 case R_SPARC_UA32:
1667 case R_SPARC_10:
1668 case R_SPARC_11:
1669 case R_SPARC_64:
1670 case R_SPARC_OLO10:
1671 case R_SPARC_HH22:
1672 case R_SPARC_HM10:
1673 case R_SPARC_LM22:
1674 case R_SPARC_7:
1675 case R_SPARC_5:
1676 case R_SPARC_6:
1677 case R_SPARC_HIX22:
1678 case R_SPARC_LOX10:
1679 case R_SPARC_H44:
1680 case R_SPARC_M44:
1681 case R_SPARC_L44:
1682 case R_SPARC_UA64:
1683 if (h != NULL)
1684 h->non_got_ref = 1;
1685
1686 r_sparc_plt32:
1687 if (h != NULL && !info->shared)
1688 {
1689 /* We may need a .plt entry if the function this reloc
1690 refers to is in a shared lib. */
1691 h->plt.refcount += 1;
1692 }
1693
1694 /* If we are creating a shared library, and this is a reloc
1695 against a global symbol, or a non PC relative reloc
1696 against a local symbol, then we need to copy the reloc
1697 into the shared library. However, if we are linking with
1698 -Bsymbolic, we do not need to copy a reloc against a
1699 global symbol which is defined in an object we are
1700 including in the link (i.e., DEF_REGULAR is set). At
1701 this point we have not seen all the input files, so it is
1702 possible that DEF_REGULAR is not set now but will be set
1703 later (it is never cleared). In case of a weak definition,
1704 DEF_REGULAR may be cleared later by a strong definition in
1705 a shared library. We account for that possibility below by
1706 storing information in the relocs_copied field of the hash
1707 table entry. A similar situation occurs when creating
1708 shared libraries and symbol visibility changes render the
1709 symbol local.
1710
1711 If on the other hand, we are creating an executable, we
1712 may need to keep relocations for symbols satisfied by a
1713 dynamic library if we manage to avoid copy relocs for the
1714 symbol. */
1715 if ((info->shared
1716 && (sec->flags & SEC_ALLOC) != 0
1717 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1718 || (h != NULL
72fbc6e5 1719 && (! SYMBOLIC_BIND (info, h)
22b75d0a
DM		 1720 || h->root.type == bfd_link_hash_defweak
1721 || !h->def_regular))))
1722 || (!info->shared
1723 && (sec->flags & SEC_ALLOC) != 0
1724 && h != NULL
1725 && (h->root.type == bfd_link_hash_defweak
d0c9aeb3
DM		 1726 || !h->def_regular))
1727 || (!info->shared
1728 && h != NULL
1729 && h->type == STT_GNU_IFUNC))
22b75d0a
DM		 1730 {
1731 struct _bfd_sparc_elf_dyn_relocs *p;
1732 struct _bfd_sparc_elf_dyn_relocs **head;
1733
1734 /* When creating a shared object, we must copy these
1735 relocs into the output file. We create a reloc
1736 section in dynobj and make room for the reloc. */
1737 if (sreloc == NULL)
1738 {
83bac4b0
NC		 1739 sreloc = _bfd_elf_make_dynamic_reloc_section
1740 (sec, htab->elf.dynobj, htab->word_align_power,
1741 abfd, /*rela?*/ TRUE);
1742
22b75d0a 1743 if (sreloc == NULL)
83bac4b0 1744 return FALSE;
22b75d0a
DM		 1745 }
1746
1747 /* If this is a global symbol, we count the number of
1748 relocations we need for this symbol. */
1749 if (h != NULL)
1750 head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
1751 else
1752 {
1753 /* Track dynamic relocs needed for local syms too.
1754 We really need local syms available to do this
1755 easily. Oh well. */
22b75d0a 1756 asection *s;
6edfbbad 1757 void *vpp;
22b75d0a 1758
d0c9aeb3 1759 BFD_ASSERT (isym != NULL);
87d72d41
AM		 1760 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1761 if (s == NULL)
1762 s = sec;
1763
6edfbbad
DJ		 1764 vpp = &elf_section_data (s)->local_dynrel;
1765 head = (struct _bfd_sparc_elf_dyn_relocs **) vpp;
22b75d0a
DM		 1766 }
1767
1768 p = *head;
1769 if (p == NULL || p->sec != sec)
1770 {
1771 bfd_size_type amt = sizeof *p;
1772 p = ((struct _bfd_sparc_elf_dyn_relocs *)
1773 bfd_alloc (htab->elf.dynobj, amt));
1774 if (p == NULL)
1775 return FALSE;
1776 p->next = *head;
1777 *head = p;
1778 p->sec = sec;
1779 p->count = 0;
1780 p->pc_count = 0;
1781 }
1782
1783 p->count += 1;
1784 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1785 p->pc_count += 1;
1786 }
1787
1788 break;
1789
1790 case R_SPARC_GNU_VTINHERIT:
1791 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1792 return FALSE;
1793 break;
1794
1795 case R_SPARC_GNU_VTENTRY:
d17e0c6e
JB		 1796 BFD_ASSERT (h != NULL);
1797 if (h != NULL
1798 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
22b75d0a
DM		 1799 return FALSE;
1800 break;
1801
1802 case R_SPARC_REGISTER:
1803 /* Nothing to do. */
1804 break;
1805
1806 default:
1807 break;
1808 }
1809 }
1810
1811 return TRUE;
1812}
1813\f
1814asection *
1815_bfd_sparc_elf_gc_mark_hook (asection *sec,
1816 struct bfd_link_info *info,
1817 Elf_Internal_Rela *rel,
1818 struct elf_link_hash_entry *h,
1819 Elf_Internal_Sym *sym)
1820{
1821 if (h != NULL)
07adf181 1822 switch (SPARC_ELF_R_TYPE (rel->r_info))
22b75d0a
DM		 1823 {
1824 case R_SPARC_GNU_VTINHERIT:
1825 case R_SPARC_GNU_VTENTRY:
07adf181 1826 return NULL;
22b75d0a 1827 }
22b75d0a 1828
07adf181 1829 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
22b75d0a
DM		 1830}
1831
1832/* Update the got entry reference counts for the section being removed. */
1833bfd_boolean
1834_bfd_sparc_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
1835 asection *sec, const Elf_Internal_Rela *relocs)
1836{
1837 struct _bfd_sparc_elf_link_hash_table *htab;
1838 Elf_Internal_Shdr *symtab_hdr;
1839 struct elf_link_hash_entry **sym_hashes;
1840 bfd_signed_vma *local_got_refcounts;
1841 const Elf_Internal_Rela *rel, *relend;
1842
7dda2462
TG		 1843 if (info->relocatable)
1844 return TRUE;
1845
0ffa91dd
NC		 1846 BFD_ASSERT (is_sparc_elf (abfd) || sec->reloc_count == 0);
1847
22b75d0a
DM		 1848 elf_section_data (sec)->local_dynrel = NULL;
1849
1850 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1851 BFD_ASSERT (htab != NULL);
0ffa91dd 1852 symtab_hdr = &elf_symtab_hdr (abfd);
22b75d0a
DM		 1853 sym_hashes = elf_sym_hashes (abfd);
1854 local_got_refcounts = elf_local_got_refcounts (abfd);
1855
1856 relend = relocs + sec->reloc_count;
1857 for (rel = relocs; rel < relend; rel++)
1858 {
1859 unsigned long r_symndx;
1860 unsigned int r_type;
1861 struct elf_link_hash_entry *h = NULL;
1862
1863 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1864 if (r_symndx >= symtab_hdr->sh_info)
1865 {
1866 struct _bfd_sparc_elf_link_hash_entry *eh;
1867 struct _bfd_sparc_elf_dyn_relocs **pp;
1868 struct _bfd_sparc_elf_dyn_relocs *p;
1869
1870 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1871 while (h->root.type == bfd_link_hash_indirect
1872 || h->root.type == bfd_link_hash_warning)
1873 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1874 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1875 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1876 if (p->sec == sec)
1877 {
1878 /* Everything must go for SEC. */
1879 *pp = p->next;
1880 break;
1881 }
1882 }
1883
1884 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1885 r_type = sparc_elf_tls_transition (info, abfd, r_type, h != NULL);
1886 switch (r_type)
1887 {
1888 case R_SPARC_TLS_LDM_HI22:
1889 case R_SPARC_TLS_LDM_LO10:
1890 if (_bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount > 0)
1891 _bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount -= 1;
1892 break;
1893
1894 case R_SPARC_TLS_GD_HI22:
1895 case R_SPARC_TLS_GD_LO10:
1896 case R_SPARC_TLS_IE_HI22:
1897 case R_SPARC_TLS_IE_LO10:
1898 case R_SPARC_GOT10:
1899 case R_SPARC_GOT13:
1900 case R_SPARC_GOT22:
739f7f82
DM		 1901 case R_SPARC_GOTDATA_HIX22:
1902 case R_SPARC_GOTDATA_LOX10:
1903 case R_SPARC_GOTDATA_OP_HIX22:
1904 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1905 if (h != NULL)
1906 {
1907 if (h->got.refcount > 0)
1908 h->got.refcount--;
1909 }
1910 else
1911 {
00c50991
DM		 1912 switch (r_type)
1913 {
1914 case R_SPARC_GOTDATA_OP_HIX22:
1915 case R_SPARC_GOTDATA_OP_LOX10:
1916 break;
1917
1918 default:
1919 if (local_got_refcounts[r_symndx] > 0)
1920 local_got_refcounts[r_symndx]--;
1921 break;
1922 }
22b75d0a
DM		 1923 }
1924 break;
1925
1926 case R_SPARC_PC10:
1927 case R_SPARC_PC22:
1928 case R_SPARC_PC_HH22:
1929 case R_SPARC_PC_HM10:
1930 case R_SPARC_PC_LM22:
1931 if (h != NULL
1932 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1933 break;
1934 /* Fall through. */
1935
1936 case R_SPARC_DISP8:
1937 case R_SPARC_DISP16:
1938 case R_SPARC_DISP32:
1939 case R_SPARC_DISP64:
1940 case R_SPARC_WDISP30:
1941 case R_SPARC_WDISP22:
1942 case R_SPARC_WDISP19:
1943 case R_SPARC_WDISP16:
1944 case R_SPARC_8:
1945 case R_SPARC_16:
1946 case R_SPARC_32:
1947 case R_SPARC_HI22:
1948 case R_SPARC_22:
1949 case R_SPARC_13:
1950 case R_SPARC_LO10:
1951 case R_SPARC_UA16:
1952 case R_SPARC_UA32:
1953 case R_SPARC_PLT32:
1954 case R_SPARC_10:
1955 case R_SPARC_11:
1956 case R_SPARC_64:
1957 case R_SPARC_OLO10:
1958 case R_SPARC_HH22:
1959 case R_SPARC_HM10:
1960 case R_SPARC_LM22:
1961 case R_SPARC_7:
1962 case R_SPARC_5:
1963 case R_SPARC_6:
1964 case R_SPARC_HIX22:
1965 case R_SPARC_LOX10:
1966 case R_SPARC_H44:
1967 case R_SPARC_M44:
1968 case R_SPARC_L44:
1969 case R_SPARC_UA64:
1970 if (info->shared)
1971 break;
1972 /* Fall through. */
1973
1974 case R_SPARC_WPLT30:
1975 if (h != NULL)
1976 {
1977 if (h->plt.refcount > 0)
1978 h->plt.refcount--;
1979 }
1980 break;
1981
1982 default:
1983 break;
1984 }
1985 }
1986
1987 return TRUE;
1988}
1989
1990/* Adjust a symbol defined by a dynamic object and referenced by a
1991 regular object. The current definition is in some section of the
1992 dynamic object, but we're not including those sections. We have to
1993 change the definition to something the rest of the link can
1994 understand. */
1995
1996bfd_boolean
1997_bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1998 struct elf_link_hash_entry *h)
1999{
2000 struct _bfd_sparc_elf_link_hash_table *htab;
2001 struct _bfd_sparc_elf_link_hash_entry * eh;
2002 struct _bfd_sparc_elf_dyn_relocs *p;
2003 asection *s;
22b75d0a
DM		 2004
2005 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2006 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 2007
2008 /* Make sure we know what is going on here. */
2009 BFD_ASSERT (htab->elf.dynobj != NULL
2010 && (h->needs_plt
d0c9aeb3 2011 || h->type == STT_GNU_IFUNC
22b75d0a
DM		 2012 || h->u.weakdef != NULL
2013 || (h->def_dynamic
2014 && h->ref_regular
2015 && !h->def_regular)));
2016
2017 /* If this is a function, put it in the procedure linkage table. We
2018 will fill in the contents of the procedure linkage table later
2019 (although we could actually do it here). The STT_NOTYPE
2020 condition is a hack specifically for the Oracle libraries
2021 delivered for Solaris; for some inexplicable reason, they define
2022 some of their functions as STT_NOTYPE when they really should be
2023 STT_FUNC. */
2024 if (h->type == STT_FUNC
d0c9aeb3 2025 || h->type == STT_GNU_IFUNC
22b75d0a
DM		 2026 || h->needs_plt
2027 || (h->type == STT_NOTYPE
2028 && (h->root.type == bfd_link_hash_defined
2029 || h->root.type == bfd_link_hash_defweak)
2030 && (h->root.u.def.section->flags & SEC_CODE) != 0))
2031 {
2032 if (h->plt.refcount <= 0
d0c9aeb3
DM		 2033 || (h->type != STT_GNU_IFUNC
2034 && (SYMBOL_CALLS_LOCAL (info, h)
2035 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2036 && h->root.type == bfd_link_hash_undefweak))))
22b75d0a
DM		 2037 {
2038 /* This case can occur if we saw a WPLT30 reloc in an input
2039 file, but the symbol was never referred to by a dynamic
2040 object, or if all references were garbage collected. In
2041 such a case, we don't actually need to build a procedure
2042 linkage table, and we can just do a WDISP30 reloc instead. */
2043 h->plt.offset = (bfd_vma) -1;
2044 h->needs_plt = 0;
2045 }
2046
2047 return TRUE;
2048 }
2049 else
2050 h->plt.offset = (bfd_vma) -1;
2051
2052 /* If this is a weak symbol, and there is a real definition, the
2053 processor independent code will have arranged for us to see the
2054 real definition first, and we can just use the same value. */
2055 if (h->u.weakdef != NULL)
2056 {
2057 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2058 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2059 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2060 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2061 return TRUE;
2062 }
2063
2064 /* This is a reference to a symbol defined by a dynamic object which
2065 is not a function. */
2066
2067 /* If we are creating a shared library, we must presume that the
2068 only references to the symbol are via the global offset table.
2069 For such cases we need not do anything here; the relocations will
2070 be handled correctly by relocate_section. */
2071 if (info->shared)
2072 return TRUE;
2073
2074 /* If there are no references to this symbol that do not use the
2075 GOT, we don't need to generate a copy reloc. */
2076 if (!h->non_got_ref)
2077 return TRUE;
2078
72fbc6e5
DM		 2079 /* If -z nocopyreloc was given, we won't generate them either. */
2080 if (info->nocopyreloc)
2081 {
2082 h->non_got_ref = 0;
2083 return TRUE;
2084 }
2085
22b75d0a
DM		 2086 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2087 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2088 {
2089 s = p->sec->output_section;
2090 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2091 break;
2092 }
2093
2094 /* If we didn't find any dynamic relocs in read-only sections, then
2095 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2096 if (p == NULL)
2097 {
2098 h->non_got_ref = 0;
2099 return TRUE;
2100 }
2101
909272ee
AM		 2102 if (h->size == 0)
2103 {
2104 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
2105 h->root.root.string);
2106 return TRUE;
2107 }
2108
22b75d0a
DM		 2109 /* We must allocate the symbol in our .dynbss section, which will
2110 become part of the .bss section of the executable. There will be
2111 an entry for this symbol in the .dynsym section. The dynamic
2112 object will contain position independent code, so all references
2113 from the dynamic object to this symbol will go through the global
2114 offset table. The dynamic linker will use the .dynsym entry to
2115 determine the address it must put in the global offset table, so
2116 both the dynamic object and the regular object will refer to the
2117 same memory location for the variable. */
2118
2119 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2120 to copy the initial value out of the dynamic object and into the
2121 runtime process image. We need to remember the offset into the
2122 .rel.bss section we are going to use. */
2123 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
2124 {
2125 htab->srelbss->size += SPARC_ELF_RELA_BYTES (htab);
2126 h->needs_copy = 1;
2127 }
2128
22b75d0a 2129 s = htab->sdynbss;
22b75d0a 2130
027297b7 2131 return _bfd_elf_adjust_dynamic_copy (h, s);
22b75d0a
DM		 2132}
2133
2134/* Allocate space in .plt, .got and associated reloc sections for
2135 dynamic relocs. */
2136
2137static bfd_boolean
2138allocate_dynrelocs (struct elf_link_hash_entry *h, PTR inf)
2139{
2140 struct bfd_link_info *info;
2141 struct _bfd_sparc_elf_link_hash_table *htab;
2142 struct _bfd_sparc_elf_link_hash_entry *eh;
2143 struct _bfd_sparc_elf_dyn_relocs *p;
2144
2145 if (h->root.type == bfd_link_hash_indirect)
2146 return TRUE;
2147
2148 if (h->root.type == bfd_link_hash_warning)
2149 /* When warning symbols are created, they **replace** the "real"
2150 entry in the hash table, thus we never get to see the real
2151 symbol in a hash traversal. So look at it now. */
2152 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2153
2154 info = (struct bfd_link_info *) inf;
2155 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2156 BFD_ASSERT (htab != NULL);
22b75d0a 2157
d0c9aeb3
DM		 2158 if ((htab->elf.dynamic_sections_created
2159 && h->plt.refcount > 0)
2160 || (h->type == STT_GNU_IFUNC
b48ca1d4
DM		 2161 && h->def_regular
2162 && h->ref_regular))
22b75d0a
DM		 2163 {
2164 /* Make sure this symbol is output as a dynamic symbol.
2165 Undefined weak syms won't yet be marked as dynamic. */
2166 if (h->dynindx == -1
2167 && !h->forced_local)
2168 {
2169 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2170 return FALSE;
2171 }
2172
d0c9aeb3 2173 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)
b48ca1d4
DM		 2174 || (h->type == STT_GNU_IFUNC
2175 && h->def_regular))
22b75d0a 2176 {
72fbc6e5 2177 asection *s = htab->elf.splt;
22b75d0a 2178
d0c9aeb3
DM		 2179 if (s == NULL)
2180 s = htab->elf.iplt;
2181
910600e9 2182 /* Allocate room for the header. */
22b75d0a 2183 if (s->size == 0)
910600e9
RS		 2184 {
2185 s->size = htab->plt_header_size;
2186
2187 /* Allocate space for the .rela.plt.unloaded relocations. */
2188 if (htab->is_vxworks && !info->shared)
2189 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2190 }
22b75d0a
DM		 2191
2192 /* The procedure linkage table size is bounded by the magnitude
2193 of the offset we can describe in the entry. */
2194 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
e8be8da4 2195 (((bfd_vma)1 << 31) << 1) : 0x400000))
22b75d0a
DM		 2196 {
2197 bfd_set_error (bfd_error_bad_value);
2198 return FALSE;
2199 }
2200
2201 if (SPARC_ELF_WORD_BYTES(htab) == 8
2202 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2203 {
2204 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2205
2206
2207 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2208
2209 h->plt.offset = (s->size - (off * 8));
2210 }
2211 else
2212 h->plt.offset = s->size;
2213
2214 /* If this symbol is not defined in a regular file, and we are
2215 not generating a shared library, then set the symbol to this
2216 location in the .plt. This is required to make function
2217 pointers compare as equal between the normal executable and
2218 the shared library. */
2219 if (! info->shared
2220 && !h->def_regular)
2221 {
2222 h->root.u.def.section = s;
2223 h->root.u.def.value = h->plt.offset;
2224 }
2225
2226 /* Make room for this entry. */
910600e9 2227 s->size += htab->plt_entry_size;
22b75d0a
DM		 2228
2229 /* We also need to make an entry in the .rela.plt section. */
d0c9aeb3
DM		 2230 if (s == htab->elf.splt)
2231 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
2232 else
2233 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
910600e9
RS		 2234
2235 if (htab->is_vxworks)
2236 {
2237 /* Allocate space for the .got.plt entry. */
72fbc6e5 2238 htab->elf.sgotplt->size += 4;
910600e9
RS		 2239
2240 /* ...and for the .rela.plt.unloaded relocations. */
2241 if (!info->shared)
2242 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2243 }
22b75d0a
DM		 2244 }
2245 else
2246 {
2247 h->plt.offset = (bfd_vma) -1;
2248 h->needs_plt = 0;
2249 }
2250 }
2251 else
2252 {
2253 h->plt.offset = (bfd_vma) -1;
2254 h->needs_plt = 0;
2255 }
2256
2257 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2258 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2259 if (h->got.refcount > 0
2260 && !info->shared
2261 && h->dynindx == -1
2262 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2263 h->got.offset = (bfd_vma) -1;
2264 else if (h->got.refcount > 0)
2265 {
2266 asection *s;
2267 bfd_boolean dyn;
2268 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2269
2270 /* Make sure this symbol is output as a dynamic symbol.
2271 Undefined weak syms won't yet be marked as dynamic. */
2272 if (h->dynindx == -1
2273 && !h->forced_local)
2274 {
2275 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2276 return FALSE;
2277 }
2278
72fbc6e5 2279 s = htab->elf.sgot;
22b75d0a
DM		 2280 h->got.offset = s->size;
2281 s->size += SPARC_ELF_WORD_BYTES (htab);
2282 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2283 if (tls_type == GOT_TLS_GD)
2284 s->size += SPARC_ELF_WORD_BYTES (htab);
2285 dyn = htab->elf.dynamic_sections_created;
2286 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2287 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
2288 global. */
2289 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
d0c9aeb3
DM		 2290 || tls_type == GOT_TLS_IE
2291 || h->type == STT_GNU_IFUNC)
72fbc6e5 2292 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a 2293 else if (tls_type == GOT_TLS_GD)
72fbc6e5 2294 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
22b75d0a 2295 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
72fbc6e5 2296 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2297 }
2298 else
2299 h->got.offset = (bfd_vma) -1;
2300
2301 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2302 if (eh->dyn_relocs == NULL)
2303 return TRUE;
2304
2305 /* In the shared -Bsymbolic case, discard space allocated for
2306 dynamic pc-relative relocs against symbols which turn out to be
2307 defined in regular objects. For the normal shared case, discard
2308 space for pc-relative relocs that have become local due to symbol
2309 visibility changes. */
2310
2311 if (info->shared)
2312 {
72fbc6e5 2313 if (SYMBOL_CALLS_LOCAL (info, h))
22b75d0a
DM		 2314 {
2315 struct _bfd_sparc_elf_dyn_relocs **pp;
2316
2317 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2318 {
2319 p->count -= p->pc_count;
2320 p->pc_count = 0;
2321 if (p->count == 0)
2322 *pp = p->next;
2323 else
2324 pp = &p->next;
2325 }
2326 }
22d606e9 2327
3348747a
NS		 2328 if (htab->is_vxworks)
2329 {
2330 struct _bfd_sparc_elf_dyn_relocs **pp;
2331
2332 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2333 {
2334 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2335 *pp = p->next;
2336 else
2337 pp = &p->next;
2338 }
2339 }
2340
22d606e9
AM		 2341 /* Also discard relocs on undefined weak syms with non-default
2342 visibility. */
2343 if (eh->dyn_relocs != NULL
2344 && h->root.type == bfd_link_hash_undefweak)
2345 {
2346 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2347 eh->dyn_relocs = NULL;
2348
2349 /* Make sure undefined weak symbols are output as a dynamic
2350 symbol in PIEs. */
2351 else if (h->dynindx == -1
2352 && !h->forced_local)
2353 {
2354 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2355 return FALSE;
2356 }
2357 }
22b75d0a
DM		 2358 }
2359 else
2360 {
2361 /* For the non-shared case, discard space for relocs against
2362 symbols which turn out to need copy relocs or are not
2363 dynamic. */
2364
2365 if (!h->non_got_ref
2366 && ((h->def_dynamic
2367 && !h->def_regular)
2368 || (htab->elf.dynamic_sections_created
2369 && (h->root.type == bfd_link_hash_undefweak
2370 || h->root.type == bfd_link_hash_undefined))))
2371 {
2372 /* Make sure this symbol is output as a dynamic symbol.
2373 Undefined weak syms won't yet be marked as dynamic. */
2374 if (h->dynindx == -1
2375 && !h->forced_local)
2376 {
2377 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2378 return FALSE;
2379 }
2380
2381 /* If that succeeded, we know we'll be keeping all the
2382 relocs. */
2383 if (h->dynindx != -1)
2384 goto keep;
2385 }
2386
2387 eh->dyn_relocs = NULL;
2388
2389 keep: ;
2390 }
2391
2392 /* Finally, allocate space. */
2393 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2394 {
2395 asection *sreloc = elf_section_data (p->sec)->sreloc;
2396 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2397 }
2398
2399 return TRUE;
2400}
2401
d0c9aeb3
DM		 2402/* Allocate space in .plt, .got and associated reloc sections for
2403 local dynamic relocs. */
2404
2405static bfd_boolean
2406allocate_local_dynrelocs (void **slot, void *inf)
2407{
2408 struct elf_link_hash_entry *h
2409 = (struct elf_link_hash_entry *) *slot;
2410
2411 if (h->type != STT_GNU_IFUNC
2412 || !h->def_regular
2413 || !h->ref_regular
2414 || !h->forced_local
2415 || h->root.type != bfd_link_hash_defined)
2416 abort ();
2417
2418 return allocate_dynrelocs (h, inf);
2419}
2420
22b75d0a
DM		 2421/* Find any dynamic relocs that apply to read-only sections. */
2422
2423static bfd_boolean
2424readonly_dynrelocs (struct elf_link_hash_entry *h, PTR inf)
2425{
2426 struct _bfd_sparc_elf_link_hash_entry *eh;
2427 struct _bfd_sparc_elf_dyn_relocs *p;
2428
2429 if (h->root.type == bfd_link_hash_warning)
2430 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2431
2432 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2433 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2434 {
2435 asection *s = p->sec->output_section;
2436
2437 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2438 {
2439 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2440
2441 info->flags |= DF_TEXTREL;
2442
2443 /* Not an error, just cut short the traversal. */
2444 return FALSE;
2445 }
2446 }
2447 return TRUE;
2448}
2449
2450/* Return true if the dynamic symbol for a given section should be
2451 omitted when creating a shared library. */
2452
2453bfd_boolean
2454_bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2455 struct bfd_link_info *info,
2456 asection *p)
2457{
2458 /* We keep the .got section symbol so that explicit relocations
2459 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2460 can be turned into relocations against the .got symbol. */
2461 if (strcmp (p->name, ".got") == 0)
2462 return FALSE;
2463
2464 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2465}
2466
2467/* Set the sizes of the dynamic sections. */
2468
2469bfd_boolean
2470_bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2471 struct bfd_link_info *info)
2472{
2473 struct _bfd_sparc_elf_link_hash_table *htab;
2474 bfd *dynobj;
2475 asection *s;
2476 bfd *ibfd;
2477
2478 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2479 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 2480 dynobj = htab->elf.dynobj;
2481 BFD_ASSERT (dynobj != NULL);
2482
2483 if (elf_hash_table (info)->dynamic_sections_created)
2484 {
2485 /* Set the contents of the .interp section to the interpreter. */
2486 if (info->executable)
2487 {
2488 s = bfd_get_section_by_name (dynobj, ".interp");
2489 BFD_ASSERT (s != NULL);
2490 s->size = htab->dynamic_interpreter_size;
2491 s->contents = (unsigned char *) htab->dynamic_interpreter;
2492 }
2493 }
2494
2495 /* Set up .got offsets for local syms, and space for local dynamic
2496 relocs. */
2497 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2498 {
2499 bfd_signed_vma *local_got;
2500 bfd_signed_vma *end_local_got;
2501 char *local_tls_type;
2502 bfd_size_type locsymcount;
2503 Elf_Internal_Shdr *symtab_hdr;
2504 asection *srel;
2505
0ffa91dd 2506 if (! is_sparc_elf (ibfd))
22b75d0a
DM		 2507 continue;
2508
2509 for (s = ibfd->sections; s != NULL; s = s->next)
2510 {
2511 struct _bfd_sparc_elf_dyn_relocs *p;
2512
6edfbbad 2513 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
22b75d0a
DM		 2514 {
2515 if (!bfd_is_abs_section (p->sec)
2516 && bfd_is_abs_section (p->sec->output_section))
2517 {
2518 /* Input section has been discarded, either because
2519 it is a copy of a linkonce section or due to
2520 linker script /DISCARD/, so we'll be discarding
2521 the relocs too. */
2522 }
3348747a
NS		 2523 else if (htab->is_vxworks
2524 && strcmp (p->sec->output_section->name,
2525 ".tls_vars") == 0)
2526 {
2527 /* Relocations in vxworks .tls_vars sections are
2528 handled specially by the loader. */
2529 }
22b75d0a
DM		 2530 else if (p->count != 0)
2531 {
2532 srel = elf_section_data (p->sec)->sreloc;
d0c9aeb3
DM		 2533 if (!htab->elf.dynamic_sections_created)
2534 srel = htab->elf.irelplt;
22b75d0a
DM		 2535 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2536 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2537 info->flags |= DF_TEXTREL;
2538 }
2539 }
2540 }
2541
2542 local_got = elf_local_got_refcounts (ibfd);
2543 if (!local_got)
2544 continue;
2545
0ffa91dd 2546 symtab_hdr = &elf_symtab_hdr (ibfd);
22b75d0a
DM		 2547 locsymcount = symtab_hdr->sh_info;
2548 end_local_got = local_got + locsymcount;
2549 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
72fbc6e5
DM		 2550 s = htab->elf.sgot;
2551 srel = htab->elf.srelgot;
22b75d0a
DM		 2552 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2553 {
2554 if (*local_got > 0)
2555 {
2556 *local_got = s->size;
2557 s->size += SPARC_ELF_WORD_BYTES (htab);
2558 if (*local_tls_type == GOT_TLS_GD)
2559 s->size += SPARC_ELF_WORD_BYTES (htab);
2560 if (info->shared
2561 || *local_tls_type == GOT_TLS_GD
2562 || *local_tls_type == GOT_TLS_IE)
2563 srel->size += SPARC_ELF_RELA_BYTES (htab);
2564 }
2565 else
2566 *local_got = (bfd_vma) -1;
2567 }
2568 }
2569
2570 if (htab->tls_ldm_got.refcount > 0)
2571 {
2572 /* Allocate 2 got entries and 1 dynamic reloc for
2573 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
72fbc6e5
DM		 2574 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2575 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2576 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2577 }
2578 else
2579 htab->tls_ldm_got.offset = -1;
2580
2581 /* Allocate global sym .plt and .got entries, and space for global
2582 sym dynamic relocs. */
2583 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info);
2584
d0c9aeb3
DM		 2585 /* Allocate .plt and .got entries, and space for local symbols. */
2586 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2587
22b75d0a 2588 if (! ABI_64_P (output_bfd)
910600e9 2589 && !htab->is_vxworks
22b75d0a
DM		 2590 && elf_hash_table (info)->dynamic_sections_created)
2591 {
2592 /* Make space for the trailing nop in .plt. */
72fbc6e5
DM		 2593 if (htab->elf.splt->size > 0)
2594 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
22b75d0a
DM		 2595
2596 /* If the .got section is more than 0x1000 bytes, we add
2597 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2598 bit relocations have a greater chance of working.
2599
2600 FIXME: Make this optimization work for 64-bit too. */
72fbc6e5 2601 if (htab->elf.sgot->size >= 0x1000
22b75d0a
DM		 2602 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2603 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2604 }
2605
2606 /* The check_relocs and adjust_dynamic_symbol entry points have
2607 determined the sizes of the various dynamic sections. Allocate
2608 memory for them. */
2609 for (s = dynobj->sections; s != NULL; s = s->next)
2610 {
22b75d0a
DM		 2611 if ((s->flags & SEC_LINKER_CREATED) == 0)
2612 continue;
2613
72fbc6e5
DM		 2614 if (s == htab->elf.splt
2615 || s == htab->elf.sgot
910600e9 2616 || s == htab->sdynbss
d0c9aeb3 2617 || s == htab->elf.iplt
72fbc6e5 2618 || s == htab->elf.sgotplt)
22b75d0a 2619 {
c456f082
AM		 2620 /* Strip this section if we don't need it; see the
2621 comment below. */
2622 }
0112cd26 2623 else if (CONST_STRNEQ (s->name, ".rela"))
c456f082
AM		 2624 {
2625 if (s->size != 0)
22b75d0a
DM		 2626 {
2627 /* We use the reloc_count field as a counter if we need
2628 to copy relocs into the output file. */
2629 s->reloc_count = 0;
2630 }
2631 }
c456f082 2632 else
22b75d0a 2633 {
c456f082 2634 /* It's not one of our sections. */
22b75d0a
DM		 2635 continue;
2636 }
2637
c456f082 2638 if (s->size == 0)
22b75d0a 2639 {
c456f082
AM		 2640 /* If we don't need this section, strip it from the
2641 output file. This is mostly to handle .rela.bss and
2642 .rela.plt. We must create both sections in
2643 create_dynamic_sections, because they must be created
2644 before the linker maps input sections to output
2645 sections. The linker does that before
2646 adjust_dynamic_symbol is called, and it is that
2647 function which decides whether anything needs to go
2648 into these sections. */
8423293d 2649 s->flags |= SEC_EXCLUDE;
22b75d0a
DM		 2650 continue;
2651 }
2652
c456f082
AM		 2653 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2654 continue;
2655
22b75d0a
DM		 2656 /* Allocate memory for the section contents. Zero the memory
2657 for the benefit of .rela.plt, which has 4 unused entries
2658 at the beginning, and we don't want garbage. */
2659 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
c456f082 2660 if (s->contents == NULL)
22b75d0a
DM		 2661 return FALSE;
2662 }
2663
2664 if (elf_hash_table (info)->dynamic_sections_created)
2665 {
2666 /* Add some entries to the .dynamic section. We fill in the
2667 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2668 must add the entries now so that we get the correct size for
2669 the .dynamic section. The DT_DEBUG entry is filled in by the
2670 dynamic linker and used by the debugger. */
2671#define add_dynamic_entry(TAG, VAL) \
2672 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2673
2674 if (info->executable)
2675 {
2676 if (!add_dynamic_entry (DT_DEBUG, 0))
2677 return FALSE;
2678 }
2679
72fbc6e5 2680 if (htab->elf.srelplt->size != 0)
22b75d0a
DM		 2681 {
2682 if (!add_dynamic_entry (DT_PLTGOT, 0)
2683 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2684 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2685 || !add_dynamic_entry (DT_JMPREL, 0))
2686 return FALSE;
2687 }
2688
2689 if (!add_dynamic_entry (DT_RELA, 0)
2690 || !add_dynamic_entry (DT_RELASZ, 0)
2691 || !add_dynamic_entry (DT_RELAENT,
2692 SPARC_ELF_RELA_BYTES (htab)))
2693 return FALSE;
2694
2695 /* If any dynamic relocs apply to a read-only section,
2696 then we need a DT_TEXTREL entry. */
2697 if ((info->flags & DF_TEXTREL) == 0)
2698 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
2699 (PTR) info);
2700
2701 if (info->flags & DF_TEXTREL)
2702 {
2703 if (!add_dynamic_entry (DT_TEXTREL, 0))
2704 return FALSE;
2705 }
2706
2707 if (ABI_64_P (output_bfd))
2708 {
2709 int reg;
2710 struct _bfd_sparc_elf_app_reg * app_regs;
2711 struct elf_strtab_hash *dynstr;
2712 struct elf_link_hash_table *eht = elf_hash_table (info);
2713
2714 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2715 entries if needed. */
2716 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2717 dynstr = eht->dynstr;
2718
2719 for (reg = 0; reg < 4; reg++)
2720 if (app_regs [reg].name != NULL)
2721 {
2722 struct elf_link_local_dynamic_entry *entry, *e;
2723
2724 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2725 return FALSE;
2726
2727 entry = (struct elf_link_local_dynamic_entry *)
2728 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2729 if (entry == NULL)
2730 return FALSE;
2731
2732 /* We cheat here a little bit: the symbol will not be local, so we
2733 put it at the end of the dynlocal linked list. We will fix it
2734 later on, as we have to fix other fields anyway. */
2735 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2736 entry->isym.st_size = 0;
2737 if (*app_regs [reg].name != '\0')
2738 entry->isym.st_name
2739 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2740 else
2741 entry->isym.st_name = 0;
2742 entry->isym.st_other = 0;
2743 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2744 STT_REGISTER);
2745 entry->isym.st_shndx = app_regs [reg].shndx;
2746 entry->next = NULL;
2747 entry->input_bfd = output_bfd;
2748 entry->input_indx = -1;
2749
2750 if (eht->dynlocal == NULL)
2751 eht->dynlocal = entry;
2752 else
2753 {
2754 for (e = eht->dynlocal; e->next; e = e->next)
2755 ;
2756 e->next = entry;
2757 }
2758 eht->dynsymcount++;
2759 }
2760 }
7a2b07ff
NS		 2761 if (htab->is_vxworks
2762 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2763 return FALSE;
22b75d0a
DM		 2764 }
2765#undef add_dynamic_entry
2766
2767 return TRUE;
2768}
2769\f
2770bfd_boolean
2771_bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2772{
f592407e
AM		 2773 if (!sec->used_by_bfd)
2774 {
2775 struct _bfd_sparc_elf_section_data *sdata;
2776 bfd_size_type amt = sizeof (*sdata);
22b75d0a 2777
f592407e
AM		 2778 sdata = bfd_zalloc (abfd, amt);
2779 if (sdata == NULL)
2780 return FALSE;
2781 sec->used_by_bfd = sdata;
2782 }
22b75d0a
DM		 2783
2784 return _bfd_elf_new_section_hook (abfd, sec);
2785}
2786
2787bfd_boolean
2788_bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2789 struct bfd_section *section,
2790 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2791 bfd_boolean *again)
2792{
c8a1f254
NS		 2793 if (link_info->relocatable)
2794 (*link_info->callbacks->einfo)
2795 (_("%P%F: --relax and -r may not be used together\n"));
2796
22b75d0a
DM		 2797 *again = FALSE;
2798 sec_do_relax (section) = 1;
2799 return TRUE;
2800}
2801\f
2802/* Return the base VMA address which should be subtracted from real addresses
2803 when resolving @dtpoff relocation.
2804 This is PT_TLS segment p_vaddr. */
2805
2806static bfd_vma
2807dtpoff_base (struct bfd_link_info *info)
2808{
2809 /* If tls_sec is NULL, we should have signalled an error already. */
2810 if (elf_hash_table (info)->tls_sec == NULL)
2811 return 0;
2812 return elf_hash_table (info)->tls_sec->vma;
2813}
2814
2815/* Return the relocation value for @tpoff relocation
2816 if STT_TLS virtual address is ADDRESS. */
2817
2818static bfd_vma
2819tpoff (struct bfd_link_info *info, bfd_vma address)
2820{
2821 struct elf_link_hash_table *htab = elf_hash_table (info);
1360ba76
RO		 2822 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
2823 bfd_vma static_tls_size;
22b75d0a
DM		 2824
2825 /* If tls_sec is NULL, we should have signalled an error already. */
2826 if (htab->tls_sec == NULL)
2827 return 0;
1360ba76
RO		 2828
2829 /* Consider special static TLS alignment requirements. */
2830 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
2831 return address - static_tls_size - htab->tls_sec->vma;
22b75d0a
DM		 2832}
2833
00c50991
DM		 2834/* Return the relocation value for a %gdop relocation. */
2835
2836static bfd_vma
2837gdopoff (struct bfd_link_info *info, bfd_vma address)
2838{
2839 struct elf_link_hash_table *htab = elf_hash_table (info);
2840 bfd_vma got_base;
2841
2842 got_base = (htab->hgot->root.u.def.value
2843 + htab->hgot->root.u.def.section->output_offset
2844 + htab->hgot->root.u.def.section->output_section->vma);
2845
2846 return address - got_base;
2847}
2848
22b75d0a
DM		 2849/* Relocate a SPARC ELF section. */
2850
2851bfd_boolean
ab96bf03
AM		 2852_bfd_sparc_elf_relocate_section (bfd *output_bfd,
2853 struct bfd_link_info *info,
2854 bfd *input_bfd,
2855 asection *input_section,
2856 bfd_byte *contents,
2857 Elf_Internal_Rela *relocs,
2858 Elf_Internal_Sym *local_syms,
2859 asection **local_sections)
22b75d0a
DM		 2860{
2861 struct _bfd_sparc_elf_link_hash_table *htab;
2862 Elf_Internal_Shdr *symtab_hdr;
2863 struct elf_link_hash_entry **sym_hashes;
2864 bfd_vma *local_got_offsets;
2865 bfd_vma got_base;
2866 asection *sreloc;
2867 Elf_Internal_Rela *rel;
2868 Elf_Internal_Rela *relend;
2869 int num_relocs;
3348747a 2870 bfd_boolean is_vxworks_tls;
22b75d0a 2871
22b75d0a 2872 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2873 BFD_ASSERT (htab != NULL);
0ffa91dd 2874 symtab_hdr = &elf_symtab_hdr (input_bfd);
22b75d0a
DM		 2875 sym_hashes = elf_sym_hashes (input_bfd);
2876 local_got_offsets = elf_local_got_offsets (input_bfd);
2877
2878 if (elf_hash_table (info)->hgot == NULL)
2879 got_base = 0;
2880 else
2881 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2882
2883 sreloc = elf_section_data (input_section)->sreloc;
3348747a
NS		 2884 /* We have to handle relocations in vxworks .tls_vars sections
2885 specially, because the dynamic loader is 'weird'. */
2886 is_vxworks_tls = (htab->is_vxworks && info->shared
2887 && !strcmp (input_section->output_section->name,
2888 ".tls_vars"));
22b75d0a
DM		 2889
2890 rel = relocs;
2891 if (ABI_64_P (output_bfd))
d4730f92 2892 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
22b75d0a
DM		 2893 else
2894 num_relocs = input_section->reloc_count;
2895 relend = relocs + num_relocs;
2896 for (; rel < relend; rel++)
2897 {
2898 int r_type, tls_type;
2899 reloc_howto_type *howto;
2900 unsigned long r_symndx;
2901 struct elf_link_hash_entry *h;
2902 Elf_Internal_Sym *sym;
2903 asection *sec;
2904 bfd_vma relocation, off;
2905 bfd_reloc_status_type r;
2906 bfd_boolean is_plt = FALSE;
2907 bfd_boolean unresolved_reloc;
2908
2909 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2910 if (r_type == R_SPARC_GNU_VTINHERIT
2911 || r_type == R_SPARC_GNU_VTENTRY)
2912 continue;
2913
2914 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2915 {
2916 bfd_set_error (bfd_error_bad_value);
2917 return FALSE;
2918 }
2919 howto = _bfd_sparc_elf_howto_table + r_type;
2920
22b75d0a
DM		 2921 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2922 h = NULL;
2923 sym = NULL;
2924 sec = NULL;
2925 unresolved_reloc = FALSE;
2926 if (r_symndx < symtab_hdr->sh_info)
2927 {
2928 sym = local_syms + r_symndx;
2929 sec = local_sections[r_symndx];
2930 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
d0c9aeb3
DM		 2931
2932 if (!info->relocatable
2933 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2934 {
2935 /* Relocate against local STT_GNU_IFUNC symbol. */
2936 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
2937 rel, FALSE);
2938 if (h == NULL)
2939 abort ();
2940
2941 /* Set STT_GNU_IFUNC symbol value. */
2942 h->root.u.def.value = sym->st_value;
2943 h->root.u.def.section = sec;
2944 }
22b75d0a
DM		 2945 }
2946 else
2947 {
2948 bfd_boolean warned;
2949
2950 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2951 r_symndx, symtab_hdr, sym_hashes,
2952 h, sec, relocation,
2953 unresolved_reloc, warned);
2954 if (warned)
2955 {
2956 /* To avoid generating warning messages about truncated
2957 relocations, set the relocation's address to be the same as
2958 the start of this section. */
2959 if (input_section->output_section != NULL)
2960 relocation = input_section->output_section->vma;
2961 else
2962 relocation = 0;
2963 }
2964 }
2965
ab96bf03
AM		 2966 if (sec != NULL && elf_discarded_section (sec))
2967 {
2968 /* For relocs against symbols from removed linkonce
2969 sections, or sections discarded by a linker script, we
2970 just want the section contents zeroed. Avoid any
2971 special processing. */
2972 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
2973 rel->r_info = 0;
2974 rel->r_addend = 0;
2975 continue;
2976 }
2977
2978 if (info->relocatable)
2979 continue;
2980
d0c9aeb3
DM		 2981 if (h != NULL
2982 && h->type == STT_GNU_IFUNC
2983 && h->def_regular)
2984 {
2985 asection *plt_sec;
2986 const char *name;
2987
2988 if ((input_section->flags & SEC_ALLOC) == 0
2989 || h->plt.offset == (bfd_vma) -1)
2990 abort ();
2991
2992 plt_sec = htab->elf.splt;
2993 if (! plt_sec)
2994 plt_sec =htab->elf.iplt;
2995
2996 switch (r_type)
2997 {
00c50991
DM		 2998 case R_SPARC_GOTDATA_OP:
2999 continue;
3000
d0c9aeb3
DM		 3001 case R_SPARC_GOTDATA_OP_HIX22:
3002 case R_SPARC_GOTDATA_OP_LOX10:
00c50991
DM		 3003 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3004 ? R_SPARC_GOT22
3005 : R_SPARC_GOT10);
3006 howto = _bfd_sparc_elf_howto_table + r_type;
3007 /* Fall through. */
3008
d0c9aeb3
DM		 3009 case R_SPARC_GOT10:
3010 case R_SPARC_GOT13:
3011 case R_SPARC_GOT22:
3012 if (htab->elf.sgot == NULL)
3013 abort ();
3014 off = h->got.offset;
3015 if (off == (bfd_vma) -1)
3016 abort();
3017 relocation = htab->elf.sgot->output_offset + off - got_base;
3018 goto do_relocation;
3019
3020 case R_SPARC_WPLT30:
3021 case R_SPARC_WDISP30:
3022 relocation = (plt_sec->output_section->vma
3023 + plt_sec->output_offset + h->plt.offset);
3024 goto do_relocation;
3025
3026 case R_SPARC_32:
3027 case R_SPARC_64:
3028 if (info->shared && h->non_got_ref)
3029 {
3030 Elf_Internal_Rela outrel;
3031 bfd_vma offset;
3032
3033 offset = _bfd_elf_section_offset (output_bfd, info,
3034 input_section,
3035 rel->r_offset);
3036 if (offset == (bfd_vma) -1
3037 || offset == (bfd_vma) -2)
3038 abort();
3039
3040 outrel.r_offset = (input_section->output_section->vma
3041 + input_section->output_offset
3042 + offset);
3043
3044 if (h->dynindx == -1
3045 || h->forced_local
3046 || info->executable)
3047 {
3048 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3049 0, R_SPARC_IRELATIVE);
3050 outrel.r_addend = relocation + rel->r_addend;
3051 }
3052 else
3053 {
3054 if (h->dynindx == -1)
3055 abort();
3056 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3057 outrel.r_addend = rel->r_addend;
3058 }
3059
3060 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3061 continue;
3062 }
3063
3064 relocation = (plt_sec->output_section->vma
3065 + plt_sec->output_offset + h->plt.offset);
3066 goto do_relocation;
3067
3068 case R_SPARC_HI22:
3069 case R_SPARC_LO10:
3070 /* We should only see such relocs in static links. */
3071 if (info->shared)
3072 abort();
3073 relocation = (plt_sec->output_section->vma
3074 + plt_sec->output_offset + h->plt.offset);
3075 goto do_relocation;
3076
3077 default:
3078 if (h->root.root.string)
3079 name = h->root.root.string;
3080 else
3081 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3082 NULL);
3083 (*_bfd_error_handler)
3084 (_("%B: relocation %s against STT_GNU_IFUNC "
3085 "symbol `%s' isn't handled by %s"), input_bfd,
3086 _bfd_sparc_elf_howto_table[r_type].name,
3087 name, __FUNCTION__);
3088 bfd_set_error (bfd_error_bad_value);
3089 return FALSE;
3090 }
3091 }
3092
22b75d0a
DM		 3093 switch (r_type)
3094 {
739f7f82
DM		 3095 case R_SPARC_GOTDATA_OP_HIX22:
3096 case R_SPARC_GOTDATA_OP_LOX10:
00c50991
DM		 3097 if (SYMBOL_REFERENCES_LOCAL (info, h))
3098 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3099 ? R_SPARC_GOTDATA_HIX22
3100 : R_SPARC_GOTDATA_LOX10);
739f7f82 3101 else
00c50991
DM		 3102 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3103 ? R_SPARC_GOT22
3104 : R_SPARC_GOT10);
3105 howto = _bfd_sparc_elf_howto_table + r_type;
3106 break;
3107
3108 case R_SPARC_GOTDATA_OP:
3109 if (SYMBOL_REFERENCES_LOCAL (info, h))
3110 {
3111 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3112
3113 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3114 relocation = 0x80000000 | (insn & 0x3e07c01f);
3115 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3116 }
3117 continue;
3118 }
3119
3120 switch (r_type)
3121 {
3122 case R_SPARC_GOTDATA_HIX22:
3123 case R_SPARC_GOTDATA_LOX10:
3124 relocation = gdopoff (info, relocation);
3125 break;
739f7f82 3126
22b75d0a
DM		 3127 case R_SPARC_GOT10:
3128 case R_SPARC_GOT13:
3129 case R_SPARC_GOT22:
3130 /* Relocation is to the entry for this symbol in the global
3131 offset table. */
72fbc6e5 3132 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3133 abort ();
3134
3135 if (h != NULL)
3136 {
3137 bfd_boolean dyn;
3138
3139 off = h->got.offset;
3140 BFD_ASSERT (off != (bfd_vma) -1);
3141 dyn = elf_hash_table (info)->dynamic_sections_created;
3142
3143 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
3144 || (info->shared
72fbc6e5 3145 && SYMBOL_REFERENCES_LOCAL (info, h)))
22b75d0a
DM		 3146 {
3147 /* This is actually a static link, or it is a
3148 -Bsymbolic link and the symbol is defined
3149 locally, or the symbol was forced to be local
3150 because of a version file. We must initialize
3151 this entry in the global offset table. Since the
3152 offset must always be a multiple of 8 for 64-bit
3153 and 4 for 32-bit, we use the least significant bit
3154 to record whether we have initialized it already.
3155
3156 When doing a dynamic link, we create a .rela.got
3157 relocation entry to initialize the value. This
3158 is done in the finish_dynamic_symbol routine. */
3159 if ((off & 1) != 0)
3160 off &= ~1;
3161 else
3162 {
3163 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
72fbc6e5 3164 htab->elf.sgot->contents + off);
22b75d0a
DM		 3165 h->got.offset |= 1;
3166 }
3167 }
3168 else
3169 unresolved_reloc = FALSE;
3170 }
3171 else
3172 {
3173 BFD_ASSERT (local_got_offsets != NULL
3174 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3175
3176 off = local_got_offsets[r_symndx];
3177
3178 /* The offset must always be a multiple of 8 on 64-bit and
3179 4 on 32-bit. We use the least significant bit to record
3180 whether we have already processed this entry. */
3181 if ((off & 1) != 0)
3182 off &= ~1;
3183 else
3184 {
3185
3186 if (info->shared)
3187 {
3188 asection *s;
3189 Elf_Internal_Rela outrel;
3190
3191 /* We need to generate a R_SPARC_RELATIVE reloc
3192 for the dynamic linker. */
72fbc6e5 3193 s = htab->elf.srelgot;
22b75d0a
DM		 3194 BFD_ASSERT (s != NULL);
3195
72fbc6e5
DM		 3196 outrel.r_offset = (htab->elf.sgot->output_section->vma
3197 + htab->elf.sgot->output_offset
22b75d0a
DM		 3198 + off);
3199 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3200 0, R_SPARC_RELATIVE);
3201 outrel.r_addend = relocation;
3202 relocation = 0;
39817122 3203 sparc_elf_append_rela (output_bfd, s, &outrel);
22b75d0a
DM		 3204 }
3205
3206 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
72fbc6e5 3207 htab->elf.sgot->contents + off);
22b75d0a
DM		 3208 local_got_offsets[r_symndx] |= 1;
3209 }
3210 }
72fbc6e5 3211 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3212 break;
3213
3214 case R_SPARC_PLT32:
3215 case R_SPARC_PLT64:
3216 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3217 {
3218 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3219 goto r_sparc_plt32;
3220 }
3221 /* Fall through. */
3222
3223 case R_SPARC_WPLT30:
3224 case R_SPARC_HIPLT22:
3225 case R_SPARC_LOPLT10:
3226 case R_SPARC_PCPLT32:
3227 case R_SPARC_PCPLT22:
3228 case R_SPARC_PCPLT10:
3229 r_sparc_wplt30:
3230 /* Relocation is to the entry for this symbol in the
3231 procedure linkage table. */
3232
3233 if (! ABI_64_P (output_bfd))
3234 {
3235 /* The Solaris native assembler will generate a WPLT30 reloc
3236 for a local symbol if you assemble a call from one
3237 section to another when using -K pic. We treat it as
3238 WDISP30. */
3239 if (h == NULL)
3240 break;
3241 }
af1fb11f
NC		 3242 /* PR 7027: We need similar behaviour for 64-bit binaries. */
3243 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3244 break;
22b75d0a
DM		 3245 else
3246 {
3247 BFD_ASSERT (h != NULL);
3248 }
3249
72fbc6e5 3250 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
22b75d0a
DM		 3251 {
3252 /* We didn't make a PLT entry for this symbol. This
3253 happens when statically linking PIC code, or when
3254 using -Bsymbolic. */
3255 break;
3256 }
3257
72fbc6e5
DM		 3258 relocation = (htab->elf.splt->output_section->vma
3259 + htab->elf.splt->output_offset
22b75d0a
DM		 3260 + h->plt.offset);
3261 unresolved_reloc = FALSE;
3262 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3263 {
3264 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3265 is_plt = TRUE;
3266 goto r_sparc_plt32;
3267 }
3268 break;
3269
3270 case R_SPARC_PC10:
3271 case R_SPARC_PC22:
3272 case R_SPARC_PC_HH22:
3273 case R_SPARC_PC_HM10:
3274 case R_SPARC_PC_LM22:
3275 if (h != NULL
3276 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3277 break;
3278 /* Fall through. */
3279 case R_SPARC_DISP8:
3280 case R_SPARC_DISP16:
3281 case R_SPARC_DISP32:
3282 case R_SPARC_DISP64:
3283 case R_SPARC_WDISP30:
3284 case R_SPARC_WDISP22:
3285 case R_SPARC_WDISP19:
3286 case R_SPARC_WDISP16:
3287 case R_SPARC_8:
3288 case R_SPARC_16:
3289 case R_SPARC_32:
3290 case R_SPARC_HI22:
3291 case R_SPARC_22:
3292 case R_SPARC_13:
3293 case R_SPARC_LO10:
3294 case R_SPARC_UA16:
3295 case R_SPARC_UA32:
3296 case R_SPARC_10:
3297 case R_SPARC_11:
3298 case R_SPARC_64:
3299 case R_SPARC_OLO10:
3300 case R_SPARC_HH22:
3301 case R_SPARC_HM10:
3302 case R_SPARC_LM22:
3303 case R_SPARC_7:
3304 case R_SPARC_5:
3305 case R_SPARC_6:
3306 case R_SPARC_HIX22:
3307 case R_SPARC_LOX10:
3308 case R_SPARC_H44:
3309 case R_SPARC_M44:
3310 case R_SPARC_L44:
3311 case R_SPARC_UA64:
3312 r_sparc_plt32:
3348747a
NS		 3313 if ((input_section->flags & SEC_ALLOC) == 0
3314 || is_vxworks_tls)
22b75d0a
DM		 3315 break;
3316
3317 if ((info->shared
3318 && (h == NULL
3319 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3320 || h->root.type != bfd_link_hash_undefweak)
3321 && (! howto->pc_relative
72fbc6e5 3322 || !SYMBOL_CALLS_LOCAL (info, h)))
22b75d0a
DM		 3323 || (!info->shared
3324 && h != NULL
3325 && h->dynindx != -1
3326 && !h->non_got_ref
3327 && ((h->def_dynamic
3328 && !h->def_regular)
3329 || h->root.type == bfd_link_hash_undefweak
3330 || h->root.type == bfd_link_hash_undefined)))
3331 {
3332 Elf_Internal_Rela outrel;
3333 bfd_boolean skip, relocate = FALSE;
3334
3335 /* When generating a shared object, these relocations
3336 are copied into the output file to be resolved at run
3337 time. */
3338
3339 BFD_ASSERT (sreloc != NULL);
3340
3341 skip = FALSE;
3342
3343 outrel.r_offset =
3344 _bfd_elf_section_offset (output_bfd, info, input_section,
3345 rel->r_offset);
3346 if (outrel.r_offset == (bfd_vma) -1)
3347 skip = TRUE;
3348 else if (outrel.r_offset == (bfd_vma) -2)
3349 skip = TRUE, relocate = TRUE;
3350 outrel.r_offset += (input_section->output_section->vma
3351 + input_section->output_offset);
3352
3353 /* Optimize unaligned reloc usage now that we know where
3354 it finally resides. */
3355 switch (r_type)
3356 {
3357 case R_SPARC_16:
3358 if (outrel.r_offset & 1)
3359 r_type = R_SPARC_UA16;
3360 break;
3361 case R_SPARC_UA16:
3362 if (!(outrel.r_offset & 1))
3363 r_type = R_SPARC_16;
3364 break;
3365 case R_SPARC_32:
3366 if (outrel.r_offset & 3)
3367 r_type = R_SPARC_UA32;
3368 break;
3369 case R_SPARC_UA32:
3370 if (!(outrel.r_offset & 3))
3371 r_type = R_SPARC_32;
3372 break;
3373 case R_SPARC_64:
3374 if (outrel.r_offset & 7)
3375 r_type = R_SPARC_UA64;
3376 break;
3377 case R_SPARC_UA64:
3378 if (!(outrel.r_offset & 7))
3379 r_type = R_SPARC_64;
3380 break;
3381 case R_SPARC_DISP8:
3382 case R_SPARC_DISP16:
3383 case R_SPARC_DISP32:
3384 case R_SPARC_DISP64:
3385 /* If the symbol is not dynamic, we should not keep
3386 a dynamic relocation. But an .rela.* slot has been
3387 allocated for it, output R_SPARC_NONE.
3388 FIXME: Add code tracking needed dynamic relocs as
3389 e.g. i386 has. */
3390 if (h->dynindx == -1)
3391 skip = TRUE, relocate = TRUE;
3392 break;
3393 }
3394
3395 if (skip)
3396 memset (&outrel, 0, sizeof outrel);
3397 /* h->dynindx may be -1 if the symbol was marked to
3398 become local. */
72fbc6e5
DM		 3399 else if (h != NULL &&
3400 h->dynindx != -1
3401 && (! is_plt
3402 || !info->shared
3403 || !SYMBOLIC_BIND (info, h)
22b75d0a
DM		 3404 || !h->def_regular))
3405 {
3406 BFD_ASSERT (h->dynindx != -1);
3407 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3408 outrel.r_addend = rel->r_addend;
3409 }
3410 else
3411 {
3412 if (r_type == R_SPARC_32 || r_type == R_SPARC_64)
3413 {
3414 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3415 0, R_SPARC_RELATIVE);
3416 outrel.r_addend = relocation + rel->r_addend;
3417 }
3418 else
3419 {
3420 long indx;
3421
74541ad4
AM		 3422 outrel.r_addend = relocation + rel->r_addend;
3423
22b75d0a 3424 if (is_plt)
72fbc6e5 3425 sec = htab->elf.splt;
22b75d0a
DM		 3426
3427 if (bfd_is_abs_section (sec))
3428 indx = 0;
3429 else if (sec == NULL || sec->owner == NULL)
3430 {
3431 bfd_set_error (bfd_error_bad_value);
3432 return FALSE;
3433 }
3434 else
3435 {
3436 asection *osec;
3437
74541ad4
AM		 3438 /* We are turning this relocation into one
3439 against a section symbol. It would be
3440 proper to subtract the symbol's value,
3441 osec->vma, from the emitted reloc addend,
3442 but ld.so expects buggy relocs. */
22b75d0a
DM		 3443 osec = sec->output_section;
3444 indx = elf_section_data (osec)->dynindx;
3445
74541ad4
AM		 3446 if (indx == 0)
3447 {
3448 osec = htab->elf.text_index_section;
3449 indx = elf_section_data (osec)->dynindx;
3450 }
3451
22b75d0a
DM		 3452 /* FIXME: we really should be able to link non-pic
3453 shared libraries. */
3454 if (indx == 0)
3455 {
3456 BFD_FAIL ();
3457 (*_bfd_error_handler)
3458 (_("%B: probably compiled without -fPIC?"),
3459 input_bfd);
3460 bfd_set_error (bfd_error_bad_value);
3461 return FALSE;
3462 }
3463 }
3464
74541ad4
AM		 3465 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3466 r_type);
22b75d0a
DM		 3467 }
3468 }
3469
39817122 3470 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3471
3472 /* This reloc will be computed at runtime, so there's no
3473 need to do anything now. */
3474 if (! relocate)
3475 continue;
3476 }
3477 break;
3478
3479 case R_SPARC_TLS_GD_HI22:
3480 if (! ABI_64_P (input_bfd)
3481 && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
3482 {
3483 /* R_SPARC_REV32 used the same reloc number as
3484 R_SPARC_TLS_GD_HI22. */
3485 r_type = R_SPARC_REV32;
3486 break;
3487 }
3488 /* Fall through */
3489
3490 case R_SPARC_TLS_GD_LO10:
3491 case R_SPARC_TLS_IE_HI22:
3492 case R_SPARC_TLS_IE_LO10:
3493 r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
3494 tls_type = GOT_UNKNOWN;
3495 if (h == NULL && local_got_offsets)
3496 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3497 else if (h != NULL)
3498 {
3499 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3500 if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE)
3501 switch (SPARC_ELF_R_TYPE (rel->r_info))
3502 {
3503 case R_SPARC_TLS_GD_HI22:
3504 case R_SPARC_TLS_IE_HI22:
3505 r_type = R_SPARC_TLS_LE_HIX22;
3506 break;
3507 default:
3508 r_type = R_SPARC_TLS_LE_LOX10;
3509 break;
3510 }
3511 }
3512 if (tls_type == GOT_TLS_IE)
3513 switch (r_type)
3514 {
3515 case R_SPARC_TLS_GD_HI22:
3516 r_type = R_SPARC_TLS_IE_HI22;
3517 break;
3518 case R_SPARC_TLS_GD_LO10:
3519 r_type = R_SPARC_TLS_IE_LO10;
3520 break;
3521 }
3522
3523 if (r_type == R_SPARC_TLS_LE_HIX22)
3524 {
3525 relocation = tpoff (info, relocation);
3526 break;
3527 }
3528 if (r_type == R_SPARC_TLS_LE_LOX10)
3529 {
3530 /* Change add into xor. */
3531 relocation = tpoff (info, relocation);
3532 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3533 contents + rel->r_offset)
3534 | 0x80182000), contents + rel->r_offset);
3535 break;
3536 }
3537
3538 if (h != NULL)
3539 {
3540 off = h->got.offset;
3541 h->got.offset |= 1;
3542 }
3543 else
3544 {
3545 BFD_ASSERT (local_got_offsets != NULL);
3546 off = local_got_offsets[r_symndx];
3547 local_got_offsets[r_symndx] |= 1;
3548 }
3549
3550 r_sparc_tlsldm:
72fbc6e5 3551 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3552 abort ();
3553
3554 if ((off & 1) != 0)
3555 off &= ~1;
3556 else
3557 {
3558 Elf_Internal_Rela outrel;
3559 int dr_type, indx;
3560
72fbc6e5 3561 if (htab->elf.srelgot == NULL)
22b75d0a
DM		 3562 abort ();
3563
72fbc6e5
DM		 3564 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3565 htab->elf.sgot->contents + off);
3566 outrel.r_offset = (htab->elf.sgot->output_section->vma
3567 + htab->elf.sgot->output_offset + off);
22b75d0a
DM		 3568 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3569 if (r_type == R_SPARC_TLS_IE_HI22
3570 || r_type == R_SPARC_TLS_IE_LO10)
3571 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3572 else
3573 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3574 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3575 outrel.r_addend = relocation - dtpoff_base (info);
3576 else
3577 outrel.r_addend = 0;
3578 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
72fbc6e5 3579 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
22b75d0a
DM		 3580
3581 if (r_type == R_SPARC_TLS_GD_HI22
3582 || r_type == R_SPARC_TLS_GD_LO10)
3583 {
3584 if (indx == 0)
3585 {
3586 BFD_ASSERT (! unresolved_reloc);
3587 SPARC_ELF_PUT_WORD (htab, output_bfd,
3588 relocation - dtpoff_base (info),
72fbc6e5 3589 (htab->elf.sgot->contents + off
22b75d0a
DM		 3590 + SPARC_ELF_WORD_BYTES (htab)));
3591 }
3592 else
3593 {
3594 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3595 (htab->elf.sgot->contents + off
22b75d0a
DM		 3596 + SPARC_ELF_WORD_BYTES (htab)));
3597 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3598 SPARC_ELF_DTPOFF_RELOC (htab));
3599 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
72fbc6e5 3600 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
39817122 3601 &outrel);
22b75d0a
DM		 3602 }
3603 }
3604 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3605 {
3606 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3607 (htab->elf.sgot->contents + off
22b75d0a
DM		 3608 + SPARC_ELF_WORD_BYTES (htab)));
3609 }
3610 }
3611
3612 if (off >= (bfd_vma) -2)
3613 abort ();
3614
72fbc6e5 3615 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3616 unresolved_reloc = FALSE;
3617 howto = _bfd_sparc_elf_howto_table + r_type;
3618 break;
3619
3620 case R_SPARC_TLS_LDM_HI22:
3621 case R_SPARC_TLS_LDM_LO10:
3622 if (! info->shared)
3623 {
3624 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3625 continue;
3626 }
3627 off = htab->tls_ldm_got.offset;
3628 htab->tls_ldm_got.offset |= 1;
3629 goto r_sparc_tlsldm;
3630
3631 case R_SPARC_TLS_LDO_HIX22:
3632 case R_SPARC_TLS_LDO_LOX10:
3633 if (info->shared)
3634 {
3635 relocation -= dtpoff_base (info);
3636 break;
3637 }
3638
3639 r_type = (r_type == R_SPARC_TLS_LDO_HIX22
3640 ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
3641 /* Fall through. */
3642
3643 case R_SPARC_TLS_LE_HIX22:
3644 case R_SPARC_TLS_LE_LOX10:
3645 if (info->shared)
3646 {
3647 Elf_Internal_Rela outrel;
c7e2358a 3648 bfd_boolean skip;
22b75d0a
DM		 3649
3650 BFD_ASSERT (sreloc != NULL);
3651 skip = FALSE;
3652 outrel.r_offset =
3653 _bfd_elf_section_offset (output_bfd, info, input_section,
3654 rel->r_offset);
3655 if (outrel.r_offset == (bfd_vma) -1)
3656 skip = TRUE;
3657 else if (outrel.r_offset == (bfd_vma) -2)
c7e2358a 3658 skip = TRUE;
22b75d0a
DM		 3659 outrel.r_offset += (input_section->output_section->vma
3660 + input_section->output_offset);
3661 if (skip)
3662 memset (&outrel, 0, sizeof outrel);
3663 else
3664 {
3665 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3666 outrel.r_addend = relocation - dtpoff_base (info)
3667 + rel->r_addend;
3668 }
3669
39817122 3670 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3671 continue;
3672 }
3673 relocation = tpoff (info, relocation);
3674 break;
3675
3676 case R_SPARC_TLS_LDM_CALL:
3677 if (! info->shared)
3678 {
3679 /* mov %g0, %o0 */
3680 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3681 continue;
3682 }
3683 /* Fall through */
3684
3685 case R_SPARC_TLS_GD_CALL:
3686 tls_type = GOT_UNKNOWN;
3687 if (h == NULL && local_got_offsets)
3688 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3689 else if (h != NULL)
3690 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3691 if (! info->shared
3692 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3693 {
3694 bfd_vma insn;
3695
3696 if (!info->shared && (h == NULL || h->dynindx == -1))
3697 {
3698 /* GD -> LE */
3699 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3700 continue;
3701 }
3702
3703 /* GD -> IE */
3704 if (rel + 1 < relend
3705 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3706 && rel[1].r_offset == rel->r_offset + 4
3707 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3708 && (((insn = bfd_get_32 (input_bfd,
3709 contents + rel[1].r_offset))
3710 >> 25) & 0x1f) == 8)
3711 {
3712 /* We have
3713 call __tls_get_addr, %tgd_call(foo)
3714 add %reg1, %reg2, %o0, %tgd_add(foo)
3715 and change it into IE:
3716 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3717 add %g7, %o0, %o0, %tie_add(foo).
3718 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3719 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3720 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3721 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3722 contents + rel->r_offset);
3723 bfd_put_32 (output_bfd, 0x9001c008,
3724 contents + rel->r_offset + 4);
3725 rel++;
3726 continue;
3727 }
3728
3729 bfd_put_32 (output_bfd, 0x9001c008, contents + rel->r_offset);
3730 continue;
3731 }
3732
3733 h = (struct elf_link_hash_entry *)
3734 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3735 FALSE, TRUE);
3736 BFD_ASSERT (h != NULL);
3737 r_type = R_SPARC_WPLT30;
3738 howto = _bfd_sparc_elf_howto_table + r_type;
3739 goto r_sparc_wplt30;
3740
3741 case R_SPARC_TLS_GD_ADD:
3742 tls_type = GOT_UNKNOWN;
3743 if (h == NULL && local_got_offsets)
3744 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3745 else if (h != NULL)
3746 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3747 if (! info->shared || tls_type == GOT_TLS_IE)
3748 {
3749 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3750 changed into IE:
3751 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3752 or LE:
3753 add %g7, %reg2, %reg3. */
3754 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3755 if ((h != NULL && h->dynindx != -1) || info->shared)
3756 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
3757 else
3758 relocation = (insn & ~0x7c000) | 0x1c000;
3759 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3760 }
3761 continue;
3762
3763 case R_SPARC_TLS_LDM_ADD:
3764 if (! info->shared)
3765 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3766 continue;
3767
3768 case R_SPARC_TLS_LDO_ADD:
3769 if (! info->shared)
3770 {
3771 /* Change rs1 into %g7. */
3772 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3773 insn = (insn & ~0x7c000) | 0x1c000;
3774 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3775 }
3776 continue;
3777
3778 case R_SPARC_TLS_IE_LD:
3779 case R_SPARC_TLS_IE_LDX:
3780 if (! info->shared && (h == NULL || h->dynindx == -1))
3781 {
3782 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3783 int rs2 = insn & 0x1f;
3784 int rd = (insn >> 25) & 0x1f;
3785
3786 if (rs2 == rd)
3787 relocation = SPARC_NOP;
3788 else
3789 relocation = 0x80100000 | (insn & 0x3e00001f);
3790 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3791 }
3792 continue;
3793
3794 case R_SPARC_TLS_IE_ADD:
3795 /* Totally useless relocation. */
3796 continue;
3797
3798 case R_SPARC_TLS_DTPOFF32:
3799 case R_SPARC_TLS_DTPOFF64:
3800 relocation -= dtpoff_base (info);
3801 break;
3802
3803 default:
3804 break;
3805 }
3806
3807 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3808 because such sections are not SEC_ALLOC and thus ld.so will
3809 not process them. */
3810 if (unresolved_reloc
3811 && !((input_section->flags & SEC_DEBUGGING) != 0
3812 && h->def_dynamic))
3813 (*_bfd_error_handler)
843fe662 3814 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
22b75d0a
DM		 3815 input_bfd,
3816 input_section,
3817 (long) rel->r_offset,
843fe662 3818 howto->name,
22b75d0a
DM		 3819 h->root.root.string);
3820
3821 r = bfd_reloc_continue;
3822 if (r_type == R_SPARC_OLO10)
3823 {
3824 bfd_vma x;
3825
3826 if (! ABI_64_P (output_bfd))
3827 abort ();
3828
3829 relocation += rel->r_addend;
3830 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3831
3832 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3833 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3834 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3835
3836 r = bfd_check_overflow (howto->complain_on_overflow,
3837 howto->bitsize, howto->rightshift,
3838 bfd_arch_bits_per_address (input_bfd),
3839 relocation);
3840 }
3841 else if (r_type == R_SPARC_WDISP16)
3842 {
3843 bfd_vma x;
3844
3845 relocation += rel->r_addend;
3846 relocation -= (input_section->output_section->vma
3847 + input_section->output_offset);
3848 relocation -= rel->r_offset;
3849
3850 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3851 x |= ((((relocation >> 2) & 0xc000) << 6)
3852 | ((relocation >> 2) & 0x3fff));
3853 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3854
3855 r = bfd_check_overflow (howto->complain_on_overflow,
3856 howto->bitsize, howto->rightshift,
3857 bfd_arch_bits_per_address (input_bfd),
3858 relocation);
3859 }
3860 else if (r_type == R_SPARC_REV32)
3861 {
3862 bfd_vma x;
3863
3864 relocation = relocation + rel->r_addend;
3865
3866 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3867 x = x + relocation;
3868 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
3869 r = bfd_reloc_ok;
3870 }
3871 else if (r_type == R_SPARC_TLS_LDO_HIX22
3872 || r_type == R_SPARC_TLS_LE_HIX22)
3873 {
3874 bfd_vma x;
3875
3876 relocation += rel->r_addend;
3877 if (r_type == R_SPARC_TLS_LE_HIX22)
3878 relocation ^= MINUS_ONE;
3879
3880 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3881 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3882 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3883 r = bfd_reloc_ok;
3884 }
3885 else if (r_type == R_SPARC_TLS_LDO_LOX10
3886 || r_type == R_SPARC_TLS_LE_LOX10)
3887 {
3888 bfd_vma x;
3889
3890 relocation += rel->r_addend;
3891 relocation &= 0x3ff;
3892 if (r_type == R_SPARC_TLS_LE_LOX10)
3893 relocation |= 0x1c00;
3894
3895 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3896 x = (x & ~(bfd_vma) 0x1fff) | relocation;
3897 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3898
3899 r = bfd_reloc_ok;
3900 }
00c50991
DM		 3901 else if (r_type == R_SPARC_HIX22
3902 || r_type == R_SPARC_GOTDATA_HIX22)
22b75d0a
DM		 3903 {
3904 bfd_vma x;
3905
3906 relocation += rel->r_addend;
00c50991
DM		 3907 if (r_type == R_SPARC_HIX22
3908 || (bfd_signed_vma) relocation < 0)
3909 relocation = relocation ^ MINUS_ONE;
22b75d0a
DM		 3910
3911 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3912 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3913 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3914
3915 r = bfd_check_overflow (howto->complain_on_overflow,
3916 howto->bitsize, howto->rightshift,
3917 bfd_arch_bits_per_address (input_bfd),
3918 relocation);
3919 }
00c50991
DM		 3920 else if (r_type == R_SPARC_LOX10
3921 || r_type == R_SPARC_GOTDATA_LOX10)
22b75d0a
DM		 3922 {
3923 bfd_vma x;
3924
3925 relocation += rel->r_addend;
00c50991
DM		 3926 if (r_type == R_SPARC_LOX10
3927 || (bfd_signed_vma) relocation < 0)
3928 relocation = (relocation & 0x3ff) | 0x1c00;
3929 else
3930 relocation = (relocation & 0x3ff);
22b75d0a
DM		 3931
3932 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3933 x = (x & ~(bfd_vma) 0x1fff) | relocation;
3934 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3935
3936 r = bfd_reloc_ok;
3937 }
3938 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
3939 && sec_do_relax (input_section)
3940 && rel->r_offset + 4 < input_section->size)
3941 {
3942#define G0 0
3943#define O7 15
3944#define XCC (2 << 20)
3945#define COND(x) (((x)&0xf)<<25)
3946#define CONDA COND(0x8)
3947#define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
3948#define INSN_BA (F2(0,2) | CONDA)
3949#define INSN_OR F3(2, 0x2, 0)
3950#define INSN_NOP F2(0,4)
3951
3952 bfd_vma x, y;
3953
3954 /* If the instruction is a call with either:
3955 restore
3956 arithmetic instruction with rd == %o7
3957 where rs1 != %o7 and rs2 if it is register != %o7
3958 then we can optimize if the call destination is near
3959 by changing the call into a branch always. */
3960 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3961 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3962 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
3963 {
3964 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
3965 || ((y & OP3(0x28)) == 0 /* arithmetic */
3966 && (y & RD(~0)) == RD(O7)))
3967 && (y & RS1(~0)) != RS1(O7)
3968 && ((y & F3I(~0))
3969 || (y & RS2(~0)) != RS2(O7)))
3970 {
3971 bfd_vma reloc;
3972
3973 reloc = relocation + rel->r_addend - rel->r_offset;
3974 reloc -= (input_section->output_section->vma
3975 + input_section->output_offset);
3976
3977 /* Ensure the branch fits into simm22. */
3978 if ((reloc & 3) == 0
3979 && ((reloc & ~(bfd_vma)0x7fffff) == 0
3980 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
3981 {
3982 reloc >>= 2;
3983
3984 /* Check whether it fits into simm19. */
3985 if (((reloc & 0x3c0000) == 0
3986 || (reloc & 0x3c0000) == 0x3c0000)
3987 && (ABI_64_P (output_bfd)
3988 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
3989 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
3990 else
3991 x = INSN_BA | (reloc & 0x3fffff); /* ba */
3992 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3993 r = bfd_reloc_ok;
3994 if (rel->r_offset >= 4
3995 && (y & (0xffffffff ^ RS1(~0)))
3996 == (INSN_OR | RD(O7) | RS2(G0)))
3997 {
3998 bfd_vma z;
3999 unsigned int reg;
4000
4001 z = bfd_get_32 (input_bfd,
4002 contents + rel->r_offset - 4);
4003 if ((z & (0xffffffff ^ RD(~0)))
4004 != (INSN_OR | RS1(O7) | RS2(G0)))
4005 break;
4006
4007 /* The sequence was
4008 or %o7, %g0, %rN
4009 call foo
4010 or %rN, %g0, %o7
4011
4012 If call foo was replaced with ba, replace
4013 or %rN, %g0, %o7 with nop. */
4014
4015 reg = (y & RS1(~0)) >> 14;
4016 if (reg != ((z & RD(~0)) >> 25)
4017 || reg == G0 || reg == O7)
4018 break;
4019
4020 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4021 contents + rel->r_offset + 4);
4022 }
4023
4024 }
4025 }
4026 }
4027 }
4028
4029 if (r == bfd_reloc_continue)
d0c9aeb3
DM		 4030 {
4031do_relocation:
4032 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4033 contents, rel->r_offset,
4034 relocation, rel->r_addend);
4035 }
22b75d0a
DM		 4036 if (r != bfd_reloc_ok)
4037 {
4038 switch (r)
4039 {
4040 default:
4041 case bfd_reloc_outofrange:
4042 abort ();
4043 case bfd_reloc_overflow:
4044 {
4045 const char *name;
4046
dc669dc8
EB		 4047 /* The Solaris native linker silently disregards overflows.
4048 We don't, but this breaks stabs debugging info, whose
4049 relocations are only 32-bits wide. Ignore overflows in
4050 this case and also for discarded entries. */
4051 if ((r_type == R_SPARC_32 || r_type == R_SPARC_DISP32)
4052 && (((input_section->flags & SEC_DEBUGGING) != 0
4053 && strcmp (bfd_section_name (input_bfd,
4054 input_section),
4055 ".stab") == 0)
4056 || _bfd_elf_section_offset (output_bfd, info,
4057 input_section,
4058 rel->r_offset)
4059 == (bfd_vma)-1))
4060 break;
4061
22b75d0a 4062 if (h != NULL)
bb29dfea
EB		 4063 {
4064 /* Assume this is a call protected by other code that
4065 detect the symbol is undefined. If this is the case,
4066 we can safely ignore the overflow. If not, the
4067 program is hosed anyway, and a little warning isn't
4068 going to help. */
4069 if (h->root.type == bfd_link_hash_undefweak
4070 && howto->pc_relative)
4071 break;
4072
4073 name = NULL;
4074 }
22b75d0a
DM		 4075 else
4076 {
4077 name = bfd_elf_string_from_elf_section (input_bfd,
4078 symtab_hdr->sh_link,
4079 sym->st_name);
4080 if (name == NULL)
4081 return FALSE;
4082 if (*name == '\0')
4083 name = bfd_section_name (input_bfd, sec);
4084 }
4085 if (! ((*info->callbacks->reloc_overflow)
4086 (info, (h ? &h->root : NULL), name, howto->name,
4087 (bfd_vma) 0, input_bfd, input_section,
4088 rel->r_offset)))
4089 return FALSE;
4090 }
4091 break;
4092 }
4093 }
4094 }
4095
4096 return TRUE;
4097}
4098
910600e9
RS		 4099/* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4100 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4101 is the offset of the associated .got.plt entry from
4102 _GLOBAL_OFFSET_TABLE_. */
4103
4104static void
4105sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4106 bfd_vma plt_offset, bfd_vma plt_index,
4107 bfd_vma got_offset)
4108{
4109 bfd_vma got_base;
4110 const bfd_vma *plt_entry;
4111 struct _bfd_sparc_elf_link_hash_table *htab;
4112 bfd_byte *loc;
4113 Elf_Internal_Rela rela;
4114
4115 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4116 BFD_ASSERT (htab != NULL);
4117
910600e9
RS		 4118 if (info->shared)
4119 {
4120 plt_entry = sparc_vxworks_shared_plt_entry;
4121 got_base = 0;
4122 }
4123 else
4124 {
4125 plt_entry = sparc_vxworks_exec_plt_entry;
4126 got_base = (htab->elf.hgot->root.u.def.value
4127 + htab->elf.hgot->root.u.def.section->output_offset
4128 + htab->elf.hgot->root.u.def.section->output_section->vma);
4129 }
4130
4131 /* Fill in the entry in the procedure linkage table. */
4132 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
72fbc6e5 4133 htab->elf.splt->contents + plt_offset);
910600e9 4134 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
72fbc6e5 4135 htab->elf.splt->contents + plt_offset + 4);
910600e9 4136 bfd_put_32 (output_bfd, plt_entry[2],
72fbc6e5 4137 htab->elf.splt->contents + plt_offset + 8);
910600e9 4138 bfd_put_32 (output_bfd, plt_entry[3],
72fbc6e5 4139 htab->elf.splt->contents + plt_offset + 12);
910600e9 4140 bfd_put_32 (output_bfd, plt_entry[4],
72fbc6e5 4141 htab->elf.splt->contents + plt_offset + 16);
910600e9 4142 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
72fbc6e5 4143 htab->elf.splt->contents + plt_offset + 20);
910600e9
RS		 4144 /* PC-relative displacement for a branch to the start of
4145 the PLT section. */
4146 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4147 & 0x003fffff),
72fbc6e5 4148 htab->elf.splt->contents + plt_offset + 24);
910600e9 4149 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
72fbc6e5 4150 htab->elf.splt->contents + plt_offset + 28);
910600e9
RS		 4151
4152 /* Fill in the .got.plt entry, pointing initially at the
4153 second half of the PLT entry. */
72fbc6e5 4154 BFD_ASSERT (htab->elf.sgotplt != NULL);
910600e9 4155 bfd_put_32 (output_bfd,
72fbc6e5
DM		 4156 htab->elf.splt->output_section->vma
4157 + htab->elf.splt->output_offset
910600e9 4158 + plt_offset + 20,
72fbc6e5 4159 htab->elf.sgotplt->contents + got_offset);
910600e9
RS		 4160
4161 /* Add relocations to .rela.plt.unloaded. */
4162 if (!info->shared)
4163 {
4164 loc = (htab->srelplt2->contents
4165 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4166
4167 /* Relocate the initial sethi. */
72fbc6e5
DM		 4168 rela.r_offset = (htab->elf.splt->output_section->vma
4169 + htab->elf.splt->output_offset
910600e9
RS		 4170 + plt_offset);
4171 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4172 rela.r_addend = got_offset;
4173 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4174 loc += sizeof (Elf32_External_Rela);
4175
4176 /* Likewise the following or. */
4177 rela.r_offset += 4;
4178 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4179 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4180 loc += sizeof (Elf32_External_Rela);
4181
4182 /* Relocate the .got.plt entry. */
72fbc6e5
DM		 4183 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4184 + htab->elf.sgotplt->output_offset
910600e9
RS		 4185 + got_offset);
4186 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4187 rela.r_addend = plt_offset + 20;
4188 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4189 }
4190}
4191
22b75d0a
DM		 4192/* Finish up dynamic symbol handling. We set the contents of various
4193 dynamic sections here. */
4194
4195bfd_boolean
4196_bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4197 struct bfd_link_info *info,
4198 struct elf_link_hash_entry *h,
4199 Elf_Internal_Sym *sym)
4200{
22b75d0a 4201 struct _bfd_sparc_elf_link_hash_table *htab;
39817122 4202 const struct elf_backend_data *bed;
22b75d0a
DM		 4203
4204 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4205 BFD_ASSERT (htab != NULL);
39817122 4206 bed = get_elf_backend_data (output_bfd);
22b75d0a
DM		 4207
4208 if (h->plt.offset != (bfd_vma) -1)
4209 {
4210 asection *splt;
4211 asection *srela;
4212 Elf_Internal_Rela rela;
4213 bfd_byte *loc;
910600e9 4214 bfd_vma r_offset, got_offset;
22b75d0a
DM		 4215 int rela_index;
4216
d0c9aeb3
DM		 4217 /* When building a static executable, use .iplt and
4218 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4219 if (htab->elf.splt != NULL)
4220 {
4221 splt = htab->elf.splt;
4222 srela = htab->elf.srelplt;
4223 }
4224 else
4225 {
4226 splt = htab->elf.iplt;
4227 srela = htab->elf.irelplt;
4228 }
22b75d0a 4229
d0c9aeb3
DM		 4230 if (splt == NULL || srela == NULL)
4231 abort ();
22b75d0a 4232
22b75d0a 4233 /* Fill in the entry in the .rela.plt section. */
910600e9 4234 if (htab->is_vxworks)
22b75d0a 4235 {
910600e9
RS		 4236 /* Work out the index of this PLT entry. */
4237 rela_index = ((h->plt.offset - htab->plt_header_size)
4238 / htab->plt_entry_size);
4239
4240 /* Calculate the offset of the associated .got.plt entry.
4241 The first three entries are reserved. */
4242 got_offset = (rela_index + 3) * 4;
4243
4244 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4245 rela_index, got_offset);
4246
4247
4248 /* On VxWorks, the relocation points to the .got.plt entry,
4249 not the .plt entry. */
72fbc6e5
DM		 4250 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4251 + htab->elf.sgotplt->output_offset
910600e9 4252 + got_offset);
22b75d0a 4253 rela.r_addend = 0;
d0c9aeb3
DM		 4254 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4255 R_SPARC_JMP_SLOT);
22b75d0a
DM		 4256 }
4257 else
4258 {
d0c9aeb3
DM		 4259 bfd_boolean ifunc = FALSE;
4260
910600e9
RS		 4261 /* Fill in the entry in the procedure linkage table. */
4262 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4263 h->plt.offset, splt->size,
4264 &r_offset);
4265
d0c9aeb3
DM		 4266 if (h == NULL
4267 || h->dynindx == -1
4268 || ((info->executable
4269 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4270 && h->def_regular
4271 && h->type == STT_GNU_IFUNC))
4272 {
4273 ifunc = TRUE;
4274 BFD_ASSERT (h == NULL
4275 || (h->type == STT_GNU_IFUNC
4276 && h->def_regular
4277 && (h->root.type == bfd_link_hash_defined
4278 || h->root.type == bfd_link_hash_defweak)));
4279 }
4280
910600e9
RS		 4281 rela.r_offset = r_offset
4282 + (splt->output_section->vma + splt->output_offset);
d0c9aeb3
DM		 4283 if (ABI_64_P (output_bfd)
4284 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
910600e9 4285 {
d0c9aeb3
DM		 4286 if (ifunc)
4287 {
4288 rela.r_addend = (h->root.u.def.section->output_section->vma
4289 + h->root.u.def.section->output_offset
4290 + h->root.u.def.value);
4291 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4292 R_SPARC_IRELATIVE);
4293 }
4294 else
4295 {
4296 rela.r_addend = (-(h->plt.offset + 4)
4297 - splt->output_section->vma
4298 - splt->output_offset);
4299 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4300 R_SPARC_JMP_SLOT);
4301 }
910600e9
RS		 4302 }
4303 else
4304 {
d0c9aeb3
DM		 4305 if (ifunc)
4306 {
4307 rela.r_addend = (h->root.u.def.section->output_section->vma
4308 + h->root.u.def.section->output_offset
4309 + h->root.u.def.value);
4310 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4311 R_SPARC_JMP_IREL);
4312 }
4313 else
4314 {
4315 rela.r_addend = 0;
4316 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4317 R_SPARC_JMP_SLOT);
4318 }
910600e9 4319 }
22b75d0a 4320 }
22b75d0a
DM		 4321
4322 /* Adjust for the first 4 reserved elements in the .plt section
4323 when setting the offset in the .rela.plt section.
4324 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4325 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4326
4327 loc = srela->contents;
39817122
RS		 4328 loc += rela_index * bed->s->sizeof_rela;
4329 bed->s->swap_reloca_out (output_bfd, &rela, loc);
22b75d0a
DM		 4330
4331 if (!h->def_regular)
4332 {
4333 /* Mark the symbol as undefined, rather than as defined in
4334 the .plt section. Leave the value alone. */
4335 sym->st_shndx = SHN_UNDEF;
4336 /* If the symbol is weak, we do need to clear the value.
4337 Otherwise, the PLT entry would provide a definition for
4338 the symbol even if the symbol wasn't defined anywhere,
4339 and so the symbol would never be NULL. */
4340 if (!h->ref_regular_nonweak)
4341 sym->st_value = 0;
4342 }
4343 }
4344
4345 if (h->got.offset != (bfd_vma) -1
4346 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4347 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
4348 {
4349 asection *sgot;
4350 asection *srela;
4351 Elf_Internal_Rela rela;
4352
4353 /* This symbol has an entry in the GOT. Set it up. */
4354
72fbc6e5
DM		 4355 sgot = htab->elf.sgot;
4356 srela = htab->elf.srelgot;
22b75d0a
DM		 4357 BFD_ASSERT (sgot != NULL && srela != NULL);
4358
4359 rela.r_offset = (sgot->output_section->vma
4360 + sgot->output_offset
4361 + (h->got.offset &~ (bfd_vma) 1));
4362
4363 /* If this is a -Bsymbolic link, and the symbol is defined
4364 locally, we just want to emit a RELATIVE reloc. Likewise if
4365 the symbol was forced to be local because of a version file.
4366 The entry in the global offset table will already have been
4367 initialized in the relocate_section function. */
d0c9aeb3
DM		 4368 if (! info->shared
4369 && h->type == STT_GNU_IFUNC
4370 && h->def_regular)
4371 {
4372 asection *plt;
4373
4374 /* We load the GOT entry with the PLT entry. */
4375 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4376 SPARC_ELF_PUT_WORD (htab, output_bfd,
4377 (plt->output_section->vma
4378 + plt->output_offset + h->plt.offset),
4379 htab->elf.sgot->contents
4380 + (h->got.offset & ~(bfd_vma) 1));
4381 return TRUE;
4382 }
4383 else if (info->shared
4384 && SYMBOL_REFERENCES_LOCAL (info, h))
22b75d0a
DM		 4385 {
4386 asection *sec = h->root.u.def.section;
d0c9aeb3
DM		 4387 if (h->type == STT_GNU_IFUNC)
4388 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4389 else
4390 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
22b75d0a
DM		 4391 rela.r_addend = (h->root.u.def.value
4392 + sec->output_section->vma
4393 + sec->output_offset);
4394 }
4395 else
4396 {
4397 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4398 rela.r_addend = 0;
4399 }
4400
4401 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4402 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
39817122 4403 sparc_elf_append_rela (output_bfd, srela, &rela);
22b75d0a
DM		 4404 }
4405
4406 if (h->needs_copy)
4407 {
4408 asection *s;
4409 Elf_Internal_Rela rela;
4410
4411 /* This symbols needs a copy reloc. Set it up. */
4412 BFD_ASSERT (h->dynindx != -1);
4413
4414 s = bfd_get_section_by_name (h->root.u.def.section->owner,
4415 ".rela.bss");
4416 BFD_ASSERT (s != NULL);
4417
4418 rela.r_offset = (h->root.u.def.value
4419 + h->root.u.def.section->output_section->vma
4420 + h->root.u.def.section->output_offset);
4421 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4422 rela.r_addend = 0;
39817122 4423 sparc_elf_append_rela (output_bfd, s, &rela);
22b75d0a
DM		 4424 }
4425
910600e9
RS		 4426 /* Mark some specially defined symbols as absolute. On VxWorks,
4427 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4428 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
d0c9aeb3
DM		 4429 if (sym != NULL
4430 && (strcmp (h->root.root.string, "_DYNAMIC") == 0
4431 || (!htab->is_vxworks
4432 && (h == htab->elf.hgot || h == htab->elf.hplt))))
22b75d0a
DM		 4433 sym->st_shndx = SHN_ABS;
4434
4435 return TRUE;
4436}
4437
4438/* Finish up the dynamic sections. */
4439
22b75d0a 4440static bfd_boolean
39817122
RS		 4441sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4442 bfd *dynobj, asection *sdyn,
4443 asection *splt ATTRIBUTE_UNUSED)
22b75d0a 4444{
910600e9 4445 struct _bfd_sparc_elf_link_hash_table *htab;
39817122
RS		 4446 const struct elf_backend_data *bed;
4447 bfd_byte *dyncon, *dynconend;
4448 size_t dynsize;
4449 int stt_regidx = -1;
4450 bfd_boolean abi_64_p;
22b75d0a 4451
910600e9 4452 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4453 BFD_ASSERT (htab != NULL);
39817122
RS		 4454 bed = get_elf_backend_data (output_bfd);
4455 dynsize = bed->s->sizeof_dyn;
4456 dynconend = sdyn->contents + sdyn->size;
4457 abi_64_p = ABI_64_P (output_bfd);
4458 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
22b75d0a
DM		 4459 {
4460 Elf_Internal_Dyn dyn;
4461 const char *name;
4462 bfd_boolean size;
4463
39817122 4464 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
22b75d0a 4465
910600e9 4466 if (htab->is_vxworks && dyn.d_tag == DT_RELASZ)
22b75d0a 4467 {
910600e9
RS		 4468 /* On VxWorks, DT_RELASZ should not include the relocations
4469 in .rela.plt. */
72fbc6e5 4470 if (htab->elf.srelplt)
910600e9 4471 {
72fbc6e5 4472 dyn.d_un.d_val -= htab->elf.srelplt->size;
39817122 4473 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
910600e9 4474 }
22b75d0a 4475 }
910600e9 4476 else if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
22b75d0a 4477 {
910600e9
RS		 4478 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4479 not to the start of the PLT. */
72fbc6e5 4480 if (htab->elf.sgotplt)
910600e9 4481 {
72fbc6e5
DM		 4482 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4483 + htab->elf.sgotplt->output_offset);
39817122 4484 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
910600e9
RS		 4485 }
4486 }
7a2b07ff
NS		 4487 else if (htab->is_vxworks
4488 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4489 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
39817122
RS		 4490 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4491 {
4492 if (stt_regidx == -1)
4493 {
4494 stt_regidx =
4495 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4496 if (stt_regidx == -1)
4497 return FALSE;
4498 }
4499 dyn.d_un.d_val = stt_regidx++;
4500 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4501 }
910600e9
RS		 4502 else
4503 {
4504 switch (dyn.d_tag)
4505 {
4506 case DT_PLTGOT: name = ".plt"; size = FALSE; break;
4507 case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break;
4508 case DT_JMPREL: name = ".rela.plt"; size = FALSE; break;
39817122 4509 default: name = NULL; size = FALSE; break;
910600e9 4510 }
22b75d0a 4511
910600e9 4512 if (name != NULL)
22b75d0a 4513 {
910600e9
RS		 4514 asection *s;
4515
4516 s = bfd_get_section_by_name (output_bfd, name);
4517 if (s == NULL)
4518 dyn.d_un.d_val = 0;
22b75d0a 4519 else
910600e9
RS		 4520 {
4521 if (! size)
4522 dyn.d_un.d_ptr = s->vma;
4523 else
4524 dyn.d_un.d_val = s->size;
4525 }
39817122 4526 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
22b75d0a 4527 }
22b75d0a
DM		 4528 }
4529 }
4530 return TRUE;
4531}
4532
910600e9
RS		 4533/* Install the first PLT entry in a VxWorks executable and make sure that
4534 .rela.plt.unloaded relocations have the correct symbol indexes. */
4535
4536static void
4537sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4538{
4539 struct _bfd_sparc_elf_link_hash_table *htab;
4540 Elf_Internal_Rela rela;
4541 bfd_vma got_base;
4542 bfd_byte *loc;
4543
4544 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4545 BFD_ASSERT (htab != NULL);
910600e9
RS		 4546
4547 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4548 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4549 + htab->elf.hgot->root.u.def.section->output_offset
4550 + htab->elf.hgot->root.u.def.value);
4551
4552 /* Install the initial PLT entry. */
4553 bfd_put_32 (output_bfd,
4554 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
72fbc6e5 4555 htab->elf.splt->contents);
910600e9
RS		 4556 bfd_put_32 (output_bfd,
4557 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
72fbc6e5 4558 htab->elf.splt->contents + 4);
910600e9
RS		 4559 bfd_put_32 (output_bfd,
4560 sparc_vxworks_exec_plt0_entry[2],
72fbc6e5 4561 htab->elf.splt->contents + 8);
910600e9
RS		 4562 bfd_put_32 (output_bfd,
4563 sparc_vxworks_exec_plt0_entry[3],
72fbc6e5 4564 htab->elf.splt->contents + 12);
910600e9
RS		 4565 bfd_put_32 (output_bfd,
4566 sparc_vxworks_exec_plt0_entry[4],
72fbc6e5 4567 htab->elf.splt->contents + 16);
910600e9
RS		 4568
4569 loc = htab->srelplt2->contents;
4570
4571 /* Add an unloaded relocation for the initial entry's "sethi". */
72fbc6e5
DM		 4572 rela.r_offset = (htab->elf.splt->output_section->vma
4573 + htab->elf.splt->output_offset);
910600e9
RS		 4574 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4575 rela.r_addend = 8;
4576 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4577 loc += sizeof (Elf32_External_Rela);
4578
4579 /* Likewise the following "or". */
4580 rela.r_offset += 4;
4581 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4582 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4583 loc += sizeof (Elf32_External_Rela);
4584
4585 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4586 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4587 in which symbols were output. */
4588 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4589 {
4590 Elf_Internal_Rela rel;
4591
4592 /* The entry's initial "sethi" (against _G_O_T_). */
4593 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4594 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4595 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4596 loc += sizeof (Elf32_External_Rela);
4597
4598 /* The following "or" (also against _G_O_T_). */
4599 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4600 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4601 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4602 loc += sizeof (Elf32_External_Rela);
4603
4604 /* The .got.plt entry (against _P_L_T_). */
4605 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4606 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4607 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4608 loc += sizeof (Elf32_External_Rela);
4609 }
4610}
4611
4612/* Install the first PLT entry in a VxWorks shared object. */
4613
4614static void
4615sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4616{
4617 struct _bfd_sparc_elf_link_hash_table *htab;
4618 unsigned int i;
4619
4620 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4621 BFD_ASSERT (htab != NULL);
4622
910600e9
RS		 4623 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4624 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
72fbc6e5 4625 htab->elf.splt->contents + i * 4);
910600e9
RS		 4626}
4627
d0c9aeb3
DM		 4628/* Finish up local dynamic symbol handling. We set the contents of
4629 various dynamic sections here. */
4630
4631static bfd_boolean
4632finish_local_dynamic_symbol (void **slot, void *inf)
4633{
4634 struct elf_link_hash_entry *h
4635 = (struct elf_link_hash_entry *) *slot;
4636 struct bfd_link_info *info
4637 = (struct bfd_link_info *) inf;
4638
4639 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4640 h, NULL);
4641}
4642
22b75d0a
DM		 4643bfd_boolean
4644_bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4645{
4646 bfd *dynobj;
4647 asection *sdyn;
4648 struct _bfd_sparc_elf_link_hash_table *htab;
4649
4650 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4651 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 4652 dynobj = htab->elf.dynobj;
4653
4654 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4655
4656 if (elf_hash_table (info)->dynamic_sections_created)
4657 {
4658 asection *splt;
22b75d0a
DM		 4659
4660 splt = bfd_get_section_by_name (dynobj, ".plt");
4661 BFD_ASSERT (splt != NULL && sdyn != NULL);
4662
39817122
RS		 4663 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4664 return FALSE;
22b75d0a
DM		 4665
4666 /* Initialize the contents of the .plt section. */
4667 if (splt->size > 0)
4668 {
910600e9
RS		 4669 if (htab->is_vxworks)
4670 {
4671 if (info->shared)
4672 sparc_vxworks_finish_shared_plt (output_bfd, info);
4673 else
4674 sparc_vxworks_finish_exec_plt (output_bfd, info);
4675 }
22b75d0a
DM		 4676 else
4677 {
910600e9
RS		 4678 memset (splt->contents, 0, htab->plt_header_size);
4679 if (!ABI_64_P (output_bfd))
4680 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4681 splt->contents + splt->size - 4);
22b75d0a
DM		 4682 }
4683 }
4684
910600e9 4685 elf_section_data (splt->output_section)->this_hdr.sh_entsize
7eeb1be6
JJ		 4686 = (htab->is_vxworks || !ABI_64_P (output_bfd))
4687 ? 0 : htab->plt_entry_size;
22b75d0a
DM		 4688 }
4689
4690 /* Set the first entry in the global offset table to the address of
4691 the dynamic section. */
72fbc6e5 4692 if (htab->elf.sgot && htab->elf.sgot->size > 0)
22b75d0a
DM		 4693 {
4694 bfd_vma val = (sdyn ?
4695 sdyn->output_section->vma + sdyn->output_offset :
4696 0);
4697
72fbc6e5 4698 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
22b75d0a
DM		 4699 }
4700
72fbc6e5
DM		 4701 if (htab->elf.sgot)
4702 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
22b75d0a
DM		 4703 SPARC_ELF_WORD_BYTES (htab);
4704
d0c9aeb3
DM		 4705 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4706 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4707
22b75d0a
DM		 4708 return TRUE;
4709}
4710
4711\f
4712/* Set the right machine number for a SPARC ELF file. */
4713
4714bfd_boolean
4715_bfd_sparc_elf_object_p (bfd *abfd)
4716{
4717 if (ABI_64_P (abfd))
4718 {
4719 unsigned long mach = bfd_mach_sparc_v9;
4720
4721 if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4722 mach = bfd_mach_sparc_v9b;
4723 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4724 mach = bfd_mach_sparc_v9a;
4725 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4726 }
4727 else
4728 {
4729 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4730 {
4731 if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4732 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4733 bfd_mach_sparc_v8plusb);
4734 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4735 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4736 bfd_mach_sparc_v8plusa);
4737 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4738 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4739 bfd_mach_sparc_v8plus);
4740 else
4741 return FALSE;
4742 }
4743 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4744 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4745 bfd_mach_sparc_sparclite_le);
4746 else
4747 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4748 }
4749}
4750
4751/* Return address for Ith PLT stub in section PLT, for relocation REL
4752 or (bfd_vma) -1 if it should not be included. */
4753
4754bfd_vma
4755_bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
4756{
4757 if (ABI_64_P (plt->owner))
4758 {
4759 bfd_vma j;
4760
4761 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
4762 if (i < PLT64_LARGE_THRESHOLD)
4763 return plt->vma + i * PLT64_ENTRY_SIZE;
4764
4765 j = (i - PLT64_LARGE_THRESHOLD) % 160;
4766 i -= j;
4767 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
4768 }
4769 else
4770 return rel->address;
4771}
GDB Binutils - Deliverables
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