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[deliverable/binutils-gdb.git] / bfd / elfxx-sparc.c
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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
281struct elf_reloc_map {
282 bfd_reloc_code_real_type bfd_reloc_val;
283 unsigned char elf_reloc_val;
284};
285
286static const struct elf_reloc_map sparc_reloc_map[] =
287{
288 { BFD_RELOC_NONE, R_SPARC_NONE, },
289 { BFD_RELOC_16, R_SPARC_16, },
290 { BFD_RELOC_16_PCREL, R_SPARC_DISP16 },
291 { BFD_RELOC_8, R_SPARC_8 },
292 { BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
293 { BFD_RELOC_CTOR, R_SPARC_64 },
294 { BFD_RELOC_32, R_SPARC_32 },
295 { BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
296 { BFD_RELOC_HI22, R_SPARC_HI22 },
297 { BFD_RELOC_LO10, R_SPARC_LO10, },
298 { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 },
299 { BFD_RELOC_64_PCREL, R_SPARC_DISP64 },
300 { BFD_RELOC_SPARC22, R_SPARC_22 },
301 { BFD_RELOC_SPARC13, R_SPARC_13 },
302 { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 },
303 { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 },
304 { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 },
305 { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 },
306 { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 },
307 { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 },
308 { BFD_RELOC_SPARC_COPY, R_SPARC_COPY },
309 { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT },
310 { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
311 { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
312 { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
313 { BFD_RELOC_SPARC_UA16, R_SPARC_UA16 },
314 { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 },
315 { BFD_RELOC_SPARC_UA64, R_SPARC_UA64 },
316 { BFD_RELOC_SPARC_10, R_SPARC_10 },
317 { BFD_RELOC_SPARC_11, R_SPARC_11 },
318 { BFD_RELOC_SPARC_64, R_SPARC_64 },
319 { BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10 },
320 { BFD_RELOC_SPARC_HH22, R_SPARC_HH22 },
321 { BFD_RELOC_SPARC_HM10, R_SPARC_HM10 },
322 { BFD_RELOC_SPARC_LM22, R_SPARC_LM22 },
323 { BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22 },
324 { BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10 },
325 { BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22 },
326 { BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16 },
327 { BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19 },
328 { BFD_RELOC_SPARC_7, R_SPARC_7 },
329 { BFD_RELOC_SPARC_5, R_SPARC_5 },
330 { BFD_RELOC_SPARC_6, R_SPARC_6 },
331 { BFD_RELOC_SPARC_DISP64, R_SPARC_DISP64 },
332 { BFD_RELOC_SPARC_TLS_GD_HI22, R_SPARC_TLS_GD_HI22 },
333 { BFD_RELOC_SPARC_TLS_GD_LO10, R_SPARC_TLS_GD_LO10 },
334 { BFD_RELOC_SPARC_TLS_GD_ADD, R_SPARC_TLS_GD_ADD },
335 { BFD_RELOC_SPARC_TLS_GD_CALL, R_SPARC_TLS_GD_CALL },
336 { BFD_RELOC_SPARC_TLS_LDM_HI22, R_SPARC_TLS_LDM_HI22 },
337 { BFD_RELOC_SPARC_TLS_LDM_LO10, R_SPARC_TLS_LDM_LO10 },
338 { BFD_RELOC_SPARC_TLS_LDM_ADD, R_SPARC_TLS_LDM_ADD },
339 { BFD_RELOC_SPARC_TLS_LDM_CALL, R_SPARC_TLS_LDM_CALL },
340 { BFD_RELOC_SPARC_TLS_LDO_HIX22, R_SPARC_TLS_LDO_HIX22 },
341 { BFD_RELOC_SPARC_TLS_LDO_LOX10, R_SPARC_TLS_LDO_LOX10 },
342 { BFD_RELOC_SPARC_TLS_LDO_ADD, R_SPARC_TLS_LDO_ADD },
343 { BFD_RELOC_SPARC_TLS_IE_HI22, R_SPARC_TLS_IE_HI22 },
344 { BFD_RELOC_SPARC_TLS_IE_LO10, R_SPARC_TLS_IE_LO10 },
345 { BFD_RELOC_SPARC_TLS_IE_LD, R_SPARC_TLS_IE_LD },
346 { BFD_RELOC_SPARC_TLS_IE_LDX, R_SPARC_TLS_IE_LDX },
347 { BFD_RELOC_SPARC_TLS_IE_ADD, R_SPARC_TLS_IE_ADD },
348 { BFD_RELOC_SPARC_TLS_LE_HIX22, R_SPARC_TLS_LE_HIX22 },
349 { BFD_RELOC_SPARC_TLS_LE_LOX10, R_SPARC_TLS_LE_LOX10 },
350 { BFD_RELOC_SPARC_TLS_DTPMOD32, R_SPARC_TLS_DTPMOD32 },
351 { BFD_RELOC_SPARC_TLS_DTPMOD64, R_SPARC_TLS_DTPMOD64 },
352 { BFD_RELOC_SPARC_TLS_DTPOFF32, R_SPARC_TLS_DTPOFF32 },
353 { BFD_RELOC_SPARC_TLS_DTPOFF64, R_SPARC_TLS_DTPOFF64 },
354 { BFD_RELOC_SPARC_TLS_TPOFF32, R_SPARC_TLS_TPOFF32 },
355 { BFD_RELOC_SPARC_TLS_TPOFF64, R_SPARC_TLS_TPOFF64 },
356 { BFD_RELOC_SPARC_PLT32, R_SPARC_PLT32 },
357 { BFD_RELOC_SPARC_PLT64, R_SPARC_PLT64 },
358 { BFD_RELOC_SPARC_HIX22, R_SPARC_HIX22 },
359 { BFD_RELOC_SPARC_LOX10, R_SPARC_LOX10 },
360 { BFD_RELOC_SPARC_H44, R_SPARC_H44 },
361 { BFD_RELOC_SPARC_M44, R_SPARC_M44 },
362 { BFD_RELOC_SPARC_L44, R_SPARC_L44 },
739f7f82
DM		 363 { BFD_RELOC_SPARC_GOTDATA_HIX22, R_SPARC_GOTDATA_HIX22 },
364 { BFD_RELOC_SPARC_GOTDATA_LOX10, R_SPARC_GOTDATA_LOX10 },
365 { BFD_RELOC_SPARC_GOTDATA_OP_HIX22, R_SPARC_GOTDATA_OP_HIX22 },
366 { BFD_RELOC_SPARC_GOTDATA_OP_LOX10, R_SPARC_GOTDATA_OP_LOX10 },
367 { BFD_RELOC_SPARC_GOTDATA_OP, R_SPARC_GOTDATA_OP },
22b75d0a 368 { BFD_RELOC_SPARC_REGISTER, R_SPARC_REGISTER },
d0c9aeb3
DM		 369 { BFD_RELOC_SPARC_JMP_IREL, R_SPARC_JMP_IREL },
370 { BFD_RELOC_SPARC_IRELATIVE, R_SPARC_IRELATIVE },
22b75d0a
DM		 371 { BFD_RELOC_VTABLE_INHERIT, R_SPARC_GNU_VTINHERIT },
372 { BFD_RELOC_VTABLE_ENTRY, R_SPARC_GNU_VTENTRY },
373 { BFD_RELOC_SPARC_REV32, R_SPARC_REV32 },
374};
375
376reloc_howto_type *
377_bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
378 bfd_reloc_code_real_type code)
379{
380 unsigned int i;
381
382 switch (code)
383 {
d0c9aeb3
DM		 384 case BFD_RELOC_SPARC_JMP_IREL:
385 return &sparc_jmp_irel_howto;
386
387 case BFD_RELOC_SPARC_IRELATIVE:
388 return &sparc_irelative_howto;
389
22b75d0a
DM		 390 case BFD_RELOC_VTABLE_INHERIT:
391 return &sparc_vtinherit_howto;
392
393 case BFD_RELOC_VTABLE_ENTRY:
394 return &sparc_vtentry_howto;
395
396 case BFD_RELOC_SPARC_REV32:
397 return &sparc_rev32_howto;
398
399 default:
400 for (i = 0;
401 i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map);
402 i++)
403 {
404 if (sparc_reloc_map[i].bfd_reloc_val == code)
405 return (_bfd_sparc_elf_howto_table
406 + (int) sparc_reloc_map[i].elf_reloc_val);
407 }
408 }
409 bfd_set_error (bfd_error_bad_value);
410 return NULL;
411}
412
157090f7
AM		 413reloc_howto_type *
414_bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
415 const char *r_name)
416{
417 unsigned int i;
418
419 for (i = 0;
420 i < (sizeof (_bfd_sparc_elf_howto_table)
421 / sizeof (_bfd_sparc_elf_howto_table[0]));
422 i++)
423 if (_bfd_sparc_elf_howto_table[i].name != NULL
424 && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
425 return &_bfd_sparc_elf_howto_table[i];
426
427 if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
428 return &sparc_vtinherit_howto;
429 if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
430 return &sparc_vtentry_howto;
431 if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
432 return &sparc_rev32_howto;
433
434 return NULL;
435}
436
22b75d0a
DM		 437reloc_howto_type *
438_bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type)
439{
440 switch (r_type)
441 {
d0c9aeb3
DM		 442 case R_SPARC_JMP_IREL:
443 return &sparc_jmp_irel_howto;
444
445 case R_SPARC_IRELATIVE:
446 return &sparc_irelative_howto;
447
22b75d0a
DM		 448 case R_SPARC_GNU_VTINHERIT:
449 return &sparc_vtinherit_howto;
450
451 case R_SPARC_GNU_VTENTRY:
452 return &sparc_vtentry_howto;
453
454 case R_SPARC_REV32:
455 return &sparc_rev32_howto;
456
457 default:
d0fb9a8d
JJ		 458 if (r_type >= (unsigned int) R_SPARC_max_std)
459 {
460 (*_bfd_error_handler) (_("invalid relocation type %d"),
461 (int) r_type);
462 r_type = R_SPARC_NONE;
463 }
22b75d0a
DM		 464 return &_bfd_sparc_elf_howto_table[r_type];
465 }
466}
467
468/* Both 32-bit and 64-bit sparc encode this in an identical manner,
469 so just take advantage of that. */
470#define SPARC_ELF_R_TYPE(r_info) \
471 ((r_info) & 0xff)
472
473void
474_bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
475 Elf_Internal_Rela *dst)
476{
477 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
478
479 cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type);
480}
481\f
482
483/* The nop opcode we use. */
484#define SPARC_NOP 0x01000000
485
486#define SPARC_INSN_BYTES 4
487
488/* The SPARC linker needs to keep track of the number of relocs that it
489 decides to copy as dynamic relocs in check_relocs for each symbol.
490 This is so that it can later discard them if they are found to be
491 unnecessary. We store the information in a field extending the
492 regular ELF linker hash table. */
493
494struct _bfd_sparc_elf_dyn_relocs
495{
496 struct _bfd_sparc_elf_dyn_relocs *next;
497
498 /* The input section of the reloc. */
499 asection *sec;
500
501 /* Total number of relocs copied for the input section. */
502 bfd_size_type count;
503
504 /* Number of pc-relative relocs copied for the input section. */
505 bfd_size_type pc_count;
506};
507
508/* SPARC ELF linker hash entry. */
509
510struct _bfd_sparc_elf_link_hash_entry
511{
512 struct elf_link_hash_entry elf;
513
514 /* Track dynamic relocs copied for this symbol. */
515 struct _bfd_sparc_elf_dyn_relocs *dyn_relocs;
516
517#define GOT_UNKNOWN 0
518#define GOT_NORMAL 1
519#define GOT_TLS_GD 2
520#define GOT_TLS_IE 3
521 unsigned char tls_type;
522};
523
524#define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
525
526struct _bfd_sparc_elf_obj_tdata
527{
528 struct elf_obj_tdata root;
529
530 /* tls_type for each local got entry. */
531 char *local_got_tls_type;
532
533 /* TRUE if TLS GD relocs has been seen for this object. */
534 bfd_boolean has_tlsgd;
535};
536
537#define _bfd_sparc_elf_tdata(abfd) \
538 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
539
540#define _bfd_sparc_elf_local_got_tls_type(abfd) \
541 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
542
0ffa91dd
NC		 543#define is_sparc_elf(bfd) \
544 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
545 && elf_tdata (bfd) != NULL \
4dfe6ac6 546 && elf_object_id (bfd) == SPARC_ELF_DATA)
0ffa91dd 547
22b75d0a
DM		 548bfd_boolean
549_bfd_sparc_elf_mkobject (bfd *abfd)
550{
0ffa91dd 551 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
4dfe6ac6 552 SPARC_ELF_DATA);
22b75d0a
DM		 553}
554
555static void
91d6fa6a 556sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 557{
91d6fa6a 558 bfd_put_32 (abfd, val, ptr);
22b75d0a
DM		 559}
560
561static void
91d6fa6a 562sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 563{
91d6fa6a 564 bfd_put_64 (abfd, val, ptr);
22b75d0a
DM		 565}
566
567static void
39817122 568sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
22b75d0a 569{
39817122
RS		 570 const struct elf_backend_data *bed;
571 bfd_byte *loc;
22b75d0a 572
39817122
RS		 573 bed = get_elf_backend_data (abfd);
574 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
575 bed->s->swap_reloca_out (abfd, rel, loc);
22b75d0a
DM		 576}
577
578static bfd_vma
e459dc7b 579sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 580 bfd_vma rel_index ATTRIBUTE_UNUSED,
e459dc7b 581 bfd_vma type ATTRIBUTE_UNUSED)
22b75d0a 582{
91d6fa6a 583 return ELF64_R_INFO (rel_index,
22b75d0a
DM		 584 (in_rel ?
585 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
586 type) : type));
587}
588
589static bfd_vma
590sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 591 bfd_vma rel_index, bfd_vma type)
22b75d0a 592{
91d6fa6a 593 return ELF32_R_INFO (rel_index, type);
22b75d0a
DM		 594}
595
596static bfd_vma
597sparc_elf_r_symndx_64 (bfd_vma r_info)
598{
e8be8da4
DM		 599 bfd_vma r_symndx = ELF32_R_SYM (r_info);
600 return (r_symndx >> 24);
22b75d0a
DM		 601}
602
603static bfd_vma
604sparc_elf_r_symndx_32 (bfd_vma r_info)
605{
606 return ELF32_R_SYM (r_info);
607}
608
609/* PLT/GOT stuff */
610
611#define PLT32_ENTRY_SIZE 12
612#define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
613
614/* The first four entries in a 32-bit procedure linkage table are reserved,
615 and the initial contents are unimportant (we zero them out).
616 Subsequent entries look like this. See the SVR4 ABI SPARC
617 supplement to see how this works. */
618
619/* sethi %hi(.-.plt0),%g1. We fill in the address later. */
620#define PLT32_ENTRY_WORD0 0x03000000
621/* b,a .plt0. We fill in the offset later. */
622#define PLT32_ENTRY_WORD1 0x30800000
623/* nop. */
624#define PLT32_ENTRY_WORD2 SPARC_NOP
625
626static int
627sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
628 bfd_vma max ATTRIBUTE_UNUSED,
629 bfd_vma *r_offset)
630{
631 bfd_put_32 (output_bfd,
632 PLT32_ENTRY_WORD0 + offset,
633 splt->contents + offset);
634 bfd_put_32 (output_bfd,
635 (PLT32_ENTRY_WORD1
636 + (((- (offset + 4)) >> 2) & 0x3fffff)),
637 splt->contents + offset + 4);
638 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
639 splt->contents + offset + 8);
640
641 *r_offset = offset;
642
643 return offset / PLT32_ENTRY_SIZE - 4;
644}
645
646/* Both the headers and the entries are icache aligned. */
647#define PLT64_ENTRY_SIZE 32
648#define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
649#define PLT64_LARGE_THRESHOLD 32768
650
651static int
652sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
653 bfd_vma max, bfd_vma *r_offset)
654{
655 unsigned char *entry = splt->contents + offset;
656 const unsigned int nop = SPARC_NOP;
91d6fa6a 657 int plt_index;
22b75d0a
DM		 658
659 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
660 {
661 unsigned int sethi, ba;
662
663 *r_offset = offset;
664
91d6fa6a 665 plt_index = (offset / PLT64_ENTRY_SIZE);
22b75d0a 666
91d6fa6a 667 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
22b75d0a
DM		 668 ba = 0x30680000
669 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
670
671 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
672 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
673 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
674 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
675 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
676 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
677 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
678 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
679 }
680 else
681 {
682 unsigned char *ptr;
683 unsigned int ldx;
684 int block, last_block, ofs, last_ofs, chunks_this_block;
685 const int insn_chunk_size = (6 * 4);
686 const int ptr_chunk_size = (1 * 8);
687 const int entries_per_block = 160;
688 const int block_size = entries_per_block * (insn_chunk_size
689 + ptr_chunk_size);
690
691 /* Entries 32768 and higher are grouped into blocks of 160.
692 The blocks are further subdivided into 160 sequences of
693 6 instructions and 160 pointers. If a block does not require
694 the full 160 entries, let's say it requires N, then there
695 will be N sequences of 6 instructions and N pointers. */
696
697 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
698 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
699
700 block = offset / block_size;
701 last_block = max / block_size;
702 if (block != last_block)
703 {
704 chunks_this_block = 160;
705 }
706 else
707 {
708 last_ofs = max % block_size;
709 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
710 }
711
712 ofs = offset % block_size;
713
91d6fa6a 714 plt_index = (PLT64_LARGE_THRESHOLD +
22b75d0a
DM		 715 (block * 160) +
716 (ofs / insn_chunk_size));
717
718 ptr = splt->contents
719 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
720 + (block * block_size)
721 + (chunks_this_block * insn_chunk_size)
722 + (ofs / insn_chunk_size) * ptr_chunk_size;
723
724 *r_offset = (bfd_vma) (ptr - splt->contents);
725
726 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
727
728 /* mov %o7,%g5
729 call .+8
730 nop
731 ldx [%o7+P],%g1
732 jmpl %o7+%g1,%g1
733 mov %g5,%o7 */
734 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
735 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
736 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
737 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
738 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
739 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
740
741 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
742 }
743
91d6fa6a 744 return plt_index - 4;
22b75d0a
DM		 745}
746
910600e9
RS		 747/* The format of the first PLT entry in a VxWorks executable. */
748static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
749 {
750 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
751 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
752 0xc4008000, /* ld [ %g2 ], %g2 */
753 0x81c08000, /* jmp %g2 */
754 0x01000000 /* nop */
755 };
756
757/* The format of subsequent PLT entries. */
758static const bfd_vma sparc_vxworks_exec_plt_entry[] =
759 {
760 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
761 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
762 0xc2004000, /* ld [ %g1 ], %g1 */
763 0x81c04000, /* jmp %g1 */
764 0x01000000, /* nop */
765 0x03000000, /* sethi %hi(f@pltindex), %g1 */
766 0x10800000, /* b _PLT_resolve */
767 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
768 };
769
770/* The format of the first PLT entry in a VxWorks shared object. */
771static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
772 {
773 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
774 0x81c08000, /* jmp %g2 */
775 0x01000000 /* nop */
776 };
777
778/* The format of subsequent PLT entries. */
779static const bfd_vma sparc_vxworks_shared_plt_entry[] =
780 {
781 0x03000000, /* sethi %hi(f@got), %g1 */
782 0x82106000, /* or %g1, %lo(f@got), %g1 */
783 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
784 0x81c04000, /* jmp %g1 */
785 0x01000000, /* nop */
786 0x03000000, /* sethi %hi(f@pltindex), %g1 */
787 0x10800000, /* b _PLT_resolve */
788 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
789 };
790
22b75d0a
DM		 791#define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
792 htab->put_word(bfd, val, ptr)
793
22b75d0a
DM		 794#define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
795 htab->r_info(in_rel, index, type)
796
797#define SPARC_ELF_R_SYMNDX(htab, r_info) \
798 htab->r_symndx(r_info)
799
800#define SPARC_ELF_WORD_BYTES(htab) \
801 htab->bytes_per_word
802
803#define SPARC_ELF_RELA_BYTES(htab) \
804 htab->bytes_per_rela
805
806#define SPARC_ELF_DTPOFF_RELOC(htab) \
807 htab->dtpoff_reloc
808
809#define SPARC_ELF_DTPMOD_RELOC(htab) \
810 htab->dtpmod_reloc
811
812#define SPARC_ELF_TPOFF_RELOC(htab) \
813 htab->tpoff_reloc
814
815#define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
816 htab->build_plt_entry (obfd, splt, off, max, r_off)
817
818/* Create an entry in an SPARC ELF linker hash table. */
819
820static struct bfd_hash_entry *
821link_hash_newfunc (struct bfd_hash_entry *entry,
822 struct bfd_hash_table *table, const char *string)
823{
824 /* Allocate the structure if it has not already been allocated by a
825 subclass. */
826 if (entry == NULL)
827 {
828 entry = bfd_hash_allocate (table,
829 sizeof (struct _bfd_sparc_elf_link_hash_entry));
830 if (entry == NULL)
831 return entry;
832 }
833
834 /* Call the allocation method of the superclass. */
835 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
836 if (entry != NULL)
837 {
838 struct _bfd_sparc_elf_link_hash_entry *eh;
839
840 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
841 eh->dyn_relocs = NULL;
842 eh->tls_type = GOT_UNKNOWN;
843 }
844
845 return entry;
846}
847
848/* The name of the dynamic interpreter. This is put in the .interp
849 section. */
850
851#define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
852#define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
853
d0c9aeb3
DM		 854/* Compute a hash of a local hash entry. We use elf_link_hash_entry
855 for local symbol so that we can handle local STT_GNU_IFUNC symbols
856 as global symbol. We reuse indx and dynstr_index for local symbol
857 hash since they aren't used by global symbols in this backend. */
858
859static hashval_t
860elf_sparc_local_htab_hash (const void *ptr)
861{
862 struct elf_link_hash_entry *h
863 = (struct elf_link_hash_entry *) ptr;
864 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
865}
866
867/* Compare local hash entries. */
868
869static int
870elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
871{
872 struct elf_link_hash_entry *h1
873 = (struct elf_link_hash_entry *) ptr1;
874 struct elf_link_hash_entry *h2
875 = (struct elf_link_hash_entry *) ptr2;
876
877 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
878}
879
880/* Find and/or create a hash entry for local symbol. */
881
882static struct elf_link_hash_entry *
883elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
884 bfd *abfd, const Elf_Internal_Rela *rel,
885 bfd_boolean create)
886{
887 struct _bfd_sparc_elf_link_hash_entry e, *ret;
888 asection *sec = abfd->sections;
889 unsigned long r_symndx;
890 hashval_t h;
891 void **slot;
892
893 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
894 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
895
896 e.elf.indx = sec->id;
897 e.elf.dynstr_index = r_symndx;
898 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
899 create ? INSERT : NO_INSERT);
900
901 if (!slot)
902 return NULL;
903
904 if (*slot)
905 {
906 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
907 return &ret->elf;
908 }
909
910 ret = (struct _bfd_sparc_elf_link_hash_entry *)
911 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
912 sizeof (struct _bfd_sparc_elf_link_hash_entry));
913 if (ret)
914 {
915 memset (ret, 0, sizeof (*ret));
916 ret->elf.indx = sec->id;
917 ret->elf.dynstr_index = r_symndx;
918 ret->elf.dynindx = -1;
919 ret->elf.plt.offset = (bfd_vma) -1;
920 ret->elf.got.offset = (bfd_vma) -1;
921 *slot = ret;
922 }
923 return &ret->elf;
924}
925
22b75d0a
DM		 926/* Create a SPARC ELF linker hash table. */
927
928struct bfd_link_hash_table *
929_bfd_sparc_elf_link_hash_table_create (bfd *abfd)
930{
931 struct _bfd_sparc_elf_link_hash_table *ret;
932 bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
933
934 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
935 if (ret == NULL)
936 return NULL;
937
938 if (ABI_64_P (abfd))
939 {
940 ret->put_word = sparc_put_word_64;
22b75d0a
DM		 941 ret->r_info = sparc_elf_r_info_64;
942 ret->r_symndx = sparc_elf_r_symndx_64;
22b75d0a
DM		 943 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
944 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
945 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
946 ret->word_align_power = 3;
947 ret->align_power_max = 4;
948 ret->bytes_per_word = 8;
949 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
c2e70a82 950 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
22b75d0a 951 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 952
953 ret->build_plt_entry = sparc64_plt_entry_build;
954 ret->plt_header_size = PLT64_HEADER_SIZE;
955 ret->plt_entry_size = PLT64_ENTRY_SIZE;
22b75d0a
DM		 956 }
957 else
958 {
959 ret->put_word = sparc_put_word_32;
22b75d0a
DM		 960 ret->r_info = sparc_elf_r_info_32;
961 ret->r_symndx = sparc_elf_r_symndx_32;
22b75d0a
DM		 962 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
963 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
964 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
965 ret->word_align_power = 2;
966 ret->align_power_max = 3;
967 ret->bytes_per_word = 4;
968 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
c2e70a82 969 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
22b75d0a 970 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 971
972 ret->build_plt_entry = sparc32_plt_entry_build;
973 ret->plt_header_size = PLT32_HEADER_SIZE;
974 ret->plt_entry_size = PLT32_ENTRY_SIZE;
22b75d0a
DM		 975 }
976
66eb6687 977 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC		 978 sizeof (struct _bfd_sparc_elf_link_hash_entry),
979 SPARC_ELF_DATA))
22b75d0a
DM		 980 {
981 free (ret);
982 return NULL;
983 }
984
d0c9aeb3
DM		 985 ret->loc_hash_table = htab_try_create (1024,
986 elf_sparc_local_htab_hash,
987 elf_sparc_local_htab_eq,
988 NULL);
989 ret->loc_hash_memory = objalloc_create ();
990 if (!ret->loc_hash_table || !ret->loc_hash_memory)
991 {
992 free (ret);
993 return NULL;
994 }
995
22b75d0a
DM		 996 return &ret->elf.root;
997}
998
d0c9aeb3
DM		 999/* Destroy a SPARC ELF linker hash table. */
1000
1001void
1002_bfd_sparc_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
1003{
1004 struct _bfd_sparc_elf_link_hash_table *htab
1005 = (struct _bfd_sparc_elf_link_hash_table *) hash;
1006
1007 if (htab->loc_hash_table)
1008 htab_delete (htab->loc_hash_table);
1009 if (htab->loc_hash_memory)
1010 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
1011 _bfd_generic_link_hash_table_free (hash);
1012}
1013
22b75d0a
DM		 1014/* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1015 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1016 hash table. */
1017
1018bfd_boolean
1019_bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1020 struct bfd_link_info *info)
1021{
1022 struct _bfd_sparc_elf_link_hash_table *htab;
1023
1024 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 1025 BFD_ASSERT (htab != NULL);
1026
22b75d0a
DM		 1027 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1028 return FALSE;
1029
22b75d0a
DM		 1030 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
1031 if (!info->shared)
1032 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
1033
910600e9
RS		 1034 if (htab->is_vxworks)
1035 {
1036 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1037 return FALSE;
1038 if (info->shared)
1039 {
1040 htab->plt_header_size
1041 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1042 htab->plt_entry_size
1043 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1044 }
1045 else
1046 {
1047 htab->plt_header_size
1048 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1049 htab->plt_entry_size
1050 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1051 }
1052 }
910600e9 1053
72fbc6e5 1054 if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss
22b75d0a
DM		 1055 || (!info->shared && !htab->srelbss))
1056 abort ();
1057
1058 return TRUE;
1059}
1060
d0c9aeb3
DM		 1061static bfd_boolean
1062create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1063{
1064 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1065 struct elf_link_hash_table *htab = elf_hash_table (info);
1066 flagword flags, pltflags;
1067 asection *s;
1068
1069 if (htab->irelifunc != NULL || htab->iplt != NULL)
1070 return TRUE;
1071
1072 flags = bed->dynamic_sec_flags;
1073 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1074
1075 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1076 if (s == NULL
1077 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1078 return FALSE;
1079 htab->iplt = s;
1080
1081 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1082 flags | SEC_READONLY);
1083 if (s == NULL
1084 || ! bfd_set_section_alignment (abfd, s,
1085 bed->s->log_file_align))
1086 return FALSE;
1087 htab->irelplt = s;
1088
1089 return TRUE;
1090}
1091
22b75d0a
DM		 1092/* Copy the extra info we tack onto an elf_link_hash_entry. */
1093
1094void
fcfa13d2 1095_bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
22b75d0a
DM		 1096 struct elf_link_hash_entry *dir,
1097 struct elf_link_hash_entry *ind)
1098{
1099 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1100
1101 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1102 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1103
1104 if (eind->dyn_relocs != NULL)
1105 {
1106 if (edir->dyn_relocs != NULL)
1107 {
1108 struct _bfd_sparc_elf_dyn_relocs **pp;
1109 struct _bfd_sparc_elf_dyn_relocs *p;
1110
fcfa13d2 1111 /* Add reloc counts against the indirect sym to the direct sym
22b75d0a
DM		 1112 list. Merge any entries against the same section. */
1113 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1114 {
1115 struct _bfd_sparc_elf_dyn_relocs *q;
1116
1117 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1118 if (q->sec == p->sec)
1119 {
1120 q->pc_count += p->pc_count;
1121 q->count += p->count;
1122 *pp = p->next;
1123 break;
1124 }
1125 if (q == NULL)
1126 pp = &p->next;
1127 }
1128 *pp = edir->dyn_relocs;
1129 }
1130
1131 edir->dyn_relocs = eind->dyn_relocs;
1132 eind->dyn_relocs = NULL;
1133 }
1134
1135 if (ind->root.type == bfd_link_hash_indirect
1136 && dir->got.refcount <= 0)
1137 {
1138 edir->tls_type = eind->tls_type;
1139 eind->tls_type = GOT_UNKNOWN;
1140 }
fcfa13d2 1141 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
22b75d0a
DM		 1142}
1143
1144static int
1145sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1146 int r_type, int is_local)
1147{
1148 if (! ABI_64_P (abfd)
1149 && r_type == R_SPARC_TLS_GD_HI22
1150 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1151 r_type = R_SPARC_REV32;
1152
1153 if (info->shared)
1154 return r_type;
1155
1156 switch (r_type)
1157 {
1158 case R_SPARC_TLS_GD_HI22:
1159 if (is_local)
1160 return R_SPARC_TLS_LE_HIX22;
1161 return R_SPARC_TLS_IE_HI22;
1162 case R_SPARC_TLS_GD_LO10:
1163 if (is_local)
1164 return R_SPARC_TLS_LE_LOX10;
1165 return R_SPARC_TLS_IE_LO10;
1166 case R_SPARC_TLS_IE_HI22:
1167 if (is_local)
1168 return R_SPARC_TLS_LE_HIX22;
1169 return r_type;
1170 case R_SPARC_TLS_IE_LO10:
1171 if (is_local)
1172 return R_SPARC_TLS_LE_LOX10;
1173 return r_type;
1174 case R_SPARC_TLS_LDM_HI22:
1175 return R_SPARC_TLS_LE_HIX22;
1176 case R_SPARC_TLS_LDM_LO10:
1177 return R_SPARC_TLS_LE_LOX10;
1178 }
1179
1180 return r_type;
1181}
1182\f
1183/* Look through the relocs for a section during the first phase, and
1184 allocate space in the global offset table or procedure linkage
1185 table. */
1186
1187bfd_boolean
1188_bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1189 asection *sec, const Elf_Internal_Rela *relocs)
1190{
1191 struct _bfd_sparc_elf_link_hash_table *htab;
1192 Elf_Internal_Shdr *symtab_hdr;
1193 struct elf_link_hash_entry **sym_hashes;
1194 bfd_vma *local_got_offsets;
1195 const Elf_Internal_Rela *rel;
1196 const Elf_Internal_Rela *rel_end;
1197 asection *sreloc;
1198 int num_relocs;
1199 bfd_boolean checked_tlsgd = FALSE;
1200
1201 if (info->relocatable)
1202 return TRUE;
1203
1204 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1205 BFD_ASSERT (htab != NULL);
0ffa91dd 1206 symtab_hdr = &elf_symtab_hdr (abfd);
22b75d0a
DM		 1207 sym_hashes = elf_sym_hashes (abfd);
1208 local_got_offsets = elf_local_got_offsets (abfd);
1209
1210 sreloc = NULL;
1211
1212 if (ABI_64_P (abfd))
1213 num_relocs = NUM_SHDR_ENTRIES (& elf_section_data (sec)->rel_hdr);
1214 else
1215 num_relocs = sec->reloc_count;
0ffa91dd
NC		 1216
1217 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1218
d0c9aeb3
DM		 1219 if (htab->elf.dynobj == NULL)
1220 htab->elf.dynobj = abfd;
1221 if (!create_ifunc_sections (htab->elf.dynobj, info))
1222 return FALSE;
1223
22b75d0a
DM		 1224 rel_end = relocs + num_relocs;
1225 for (rel = relocs; rel < rel_end; rel++)
1226 {
1227 unsigned int r_type;
1228 unsigned long r_symndx;
1229 struct elf_link_hash_entry *h;
d0c9aeb3 1230 Elf_Internal_Sym *isym;
22b75d0a
DM		 1231
1232 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1233 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1234
1235 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1236 {
1237 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
1238 abfd, r_symndx);
1239 return FALSE;
1240 }
1241
d0c9aeb3 1242 isym = NULL;
22b75d0a 1243 if (r_symndx < symtab_hdr->sh_info)
d0c9aeb3
DM		 1244 {
1245 /* A local symbol. */
1246 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1247 abfd, r_symndx);
1248 if (isym == NULL)
1249 return FALSE;
1250
1251 /* Check relocation against local STT_GNU_IFUNC symbol. */
1252 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1253 {
1254 h = elf_sparc_get_local_sym_hash (htab, abfd, rel,
1255 TRUE);
1256 if (h == NULL)
1257 return FALSE;
1258
1259 /* Fake a STT_GNU_IFUNC symbol. */
1260 h->type = STT_GNU_IFUNC;
1261 h->def_regular = 1;
1262 h->ref_regular = 1;
1263 h->forced_local = 1;
1264 h->root.type = bfd_link_hash_defined;
1265 }
1266 else
1267 h = NULL;
1268 }
22b75d0a 1269 else
973a3492
L		 1270 {
1271 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1272 while (h->root.type == bfd_link_hash_indirect
1273 || h->root.type == bfd_link_hash_warning)
1274 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1275 }
22b75d0a 1276
d0c9aeb3
DM		 1277 if (h && h->type == STT_GNU_IFUNC)
1278 {
1279 if (h->def_regular)
1280 h->plt.refcount += 1;
1281 }
1282
22b75d0a
DM		 1283 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1284 with R_SPARC_TLS_GD_HI22. */
1285 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1286 switch (r_type)
1287 {
1288 case R_SPARC_TLS_GD_HI22:
1289 {
1290 const Elf_Internal_Rela *relt;
1291
1292 for (relt = rel + 1; relt < rel_end; relt++)
1293 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1294 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1295 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1296 break;
1297 checked_tlsgd = TRUE;
1298 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1299 }
1300 break;
1301 case R_SPARC_TLS_GD_LO10:
1302 case R_SPARC_TLS_GD_ADD:
1303 case R_SPARC_TLS_GD_CALL:
1304 checked_tlsgd = TRUE;
1305 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1306 break;
1307 }
1308
1309 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
1310 switch (r_type)
1311 {
1312 case R_SPARC_TLS_LDM_HI22:
1313 case R_SPARC_TLS_LDM_LO10:
1314 htab->tls_ldm_got.refcount += 1;
1315 break;
1316
1317 case R_SPARC_TLS_LE_HIX22:
1318 case R_SPARC_TLS_LE_LOX10:
1319 if (info->shared)
1320 goto r_sparc_plt32;
1321 break;
1322
1323 case R_SPARC_TLS_IE_HI22:
1324 case R_SPARC_TLS_IE_LO10:
1325 if (info->shared)
1326 info->flags |= DF_STATIC_TLS;
1327 /* Fall through */
1328
1329 case R_SPARC_GOT10:
1330 case R_SPARC_GOT13:
1331 case R_SPARC_GOT22:
739f7f82
DM		 1332 case R_SPARC_GOTDATA_HIX22:
1333 case R_SPARC_GOTDATA_LOX10:
1334 case R_SPARC_GOTDATA_OP_HIX22:
1335 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1336 case R_SPARC_TLS_GD_HI22:
1337 case R_SPARC_TLS_GD_LO10:
1338 /* This symbol requires a global offset table entry. */
1339 {
1340 int tls_type, old_tls_type;
1341
1342 switch (r_type)
1343 {
1344 default:
1345 case R_SPARC_GOT10:
1346 case R_SPARC_GOT13:
1347 case R_SPARC_GOT22:
739f7f82
DM		 1348 case R_SPARC_GOTDATA_OP_HIX22:
1349 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1350 tls_type = GOT_NORMAL;
1351 break;
1352 case R_SPARC_TLS_GD_HI22:
1353 case R_SPARC_TLS_GD_LO10:
1354 tls_type = GOT_TLS_GD;
1355 break;
1356 case R_SPARC_TLS_IE_HI22:
1357 case R_SPARC_TLS_IE_LO10:
1358 tls_type = GOT_TLS_IE;
1359 break;
1360 }
1361
1362 if (h != NULL)
1363 {
1364 h->got.refcount += 1;
1365 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1366 }
1367 else
1368 {
1369 bfd_signed_vma *local_got_refcounts;
1370
1371 /* This is a global offset table entry for a local symbol. */
1372 local_got_refcounts = elf_local_got_refcounts (abfd);
1373 if (local_got_refcounts == NULL)
1374 {
1375 bfd_size_type size;
1376
1377 size = symtab_hdr->sh_info;
1378 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1379 local_got_refcounts = ((bfd_signed_vma *)
1380 bfd_zalloc (abfd, size));
1381 if (local_got_refcounts == NULL)
1382 return FALSE;
1383 elf_local_got_refcounts (abfd) = local_got_refcounts;
1384 _bfd_sparc_elf_local_got_tls_type (abfd)
1385 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1386 }
00c50991
DM		 1387 switch (r_type)
1388 {
1389 case R_SPARC_GOTDATA_OP_HIX22:
1390 case R_SPARC_GOTDATA_OP_LOX10:
1391 break;
1392
1393 default:
1394 local_got_refcounts[r_symndx] += 1;
1395 break;
1396 }
22b75d0a
DM		 1397 old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1398 }
1399
1400 /* If a TLS symbol is accessed using IE at least once,
1401 there is no point to use dynamic model for it. */
1402 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1403 && (old_tls_type != GOT_TLS_GD
1404 || tls_type != GOT_TLS_IE))
1405 {
1406 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1407 tls_type = old_tls_type;
1408 else
1409 {
1410 (*_bfd_error_handler)
1411 (_("%B: `%s' accessed both as normal and thread local symbol"),
1412 abfd, h ? h->root.root.string : "<local>");
1413 return FALSE;
1414 }
1415 }
1416
1417 if (old_tls_type != tls_type)
1418 {
1419 if (h != NULL)
1420 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1421 else
1422 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1423 }
1424 }
1425
72fbc6e5 1426 if (htab->elf.sgot == NULL)
22b75d0a 1427 {
72fbc6e5 1428 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
22b75d0a
DM		 1429 return FALSE;
1430 }
1431 break;
1432
1433 case R_SPARC_TLS_GD_CALL:
1434 case R_SPARC_TLS_LDM_CALL:
1435 if (info->shared)
1436 {
1437 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1438 __tls_get_addr. */
1439 struct bfd_link_hash_entry *bh = NULL;
1440 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1441 "__tls_get_addr", 0,
1442 bfd_und_section_ptr, 0,
1443 NULL, FALSE, FALSE,
1444 &bh))
1445 return FALSE;
1446 h = (struct elf_link_hash_entry *) bh;
1447 }
1448 else
1449 break;
1450 /* Fall through */
1451
1452 case R_SPARC_PLT32:
1453 case R_SPARC_WPLT30:
1454 case R_SPARC_HIPLT22:
1455 case R_SPARC_LOPLT10:
1456 case R_SPARC_PCPLT32:
1457 case R_SPARC_PCPLT22:
1458 case R_SPARC_PCPLT10:
1459 case R_SPARC_PLT64:
1460 /* This symbol requires a procedure linkage table entry. We
1461 actually build the entry in adjust_dynamic_symbol,
1462 because this might be a case of linking PIC code without
1463 linking in any dynamic objects, in which case we don't
1464 need to generate a procedure linkage table after all. */
1465
1466 if (h == NULL)
1467 {
1468 if (! ABI_64_P (abfd))
1469 {
1470 /* The Solaris native assembler will generate a WPLT30
1471 reloc for a local symbol if you assemble a call from
1472 one section to another when using -K pic. We treat
1473 it as WDISP30. */
1474 if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
1475 goto r_sparc_plt32;
1476 break;
1477 }
af1fb11f
NC		 1478 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1479 else if (r_type == R_SPARC_WPLT30)
1480 break;
22b75d0a
DM		 1481
1482 /* It does not make sense to have a procedure linkage
1483 table entry for a local symbol. */
1484 bfd_set_error (bfd_error_bad_value);
1485 return FALSE;
1486 }
1487
1488 h->needs_plt = 1;
1489
1490 {
1491 int this_r_type;
1492
1493 this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
1494 if (this_r_type == R_SPARC_PLT32
1495 || this_r_type == R_SPARC_PLT64)
1496 goto r_sparc_plt32;
1497 }
1498 h->plt.refcount += 1;
1499 break;
1500
1501 case R_SPARC_PC10:
1502 case R_SPARC_PC22:
1503 case R_SPARC_PC_HH22:
1504 case R_SPARC_PC_HM10:
1505 case R_SPARC_PC_LM22:
1506 if (h != NULL)
1507 h->non_got_ref = 1;
1508
1509 if (h != NULL
1510 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1511 break;
1512 /* Fall through. */
1513
1514 case R_SPARC_DISP8:
1515 case R_SPARC_DISP16:
1516 case R_SPARC_DISP32:
1517 case R_SPARC_DISP64:
1518 case R_SPARC_WDISP30:
1519 case R_SPARC_WDISP22:
1520 case R_SPARC_WDISP19:
1521 case R_SPARC_WDISP16:
1522 case R_SPARC_8:
1523 case R_SPARC_16:
1524 case R_SPARC_32:
1525 case R_SPARC_HI22:
1526 case R_SPARC_22:
1527 case R_SPARC_13:
1528 case R_SPARC_LO10:
1529 case R_SPARC_UA16:
1530 case R_SPARC_UA32:
1531 case R_SPARC_10:
1532 case R_SPARC_11:
1533 case R_SPARC_64:
1534 case R_SPARC_OLO10:
1535 case R_SPARC_HH22:
1536 case R_SPARC_HM10:
1537 case R_SPARC_LM22:
1538 case R_SPARC_7:
1539 case R_SPARC_5:
1540 case R_SPARC_6:
1541 case R_SPARC_HIX22:
1542 case R_SPARC_LOX10:
1543 case R_SPARC_H44:
1544 case R_SPARC_M44:
1545 case R_SPARC_L44:
1546 case R_SPARC_UA64:
1547 if (h != NULL)
1548 h->non_got_ref = 1;
1549
1550 r_sparc_plt32:
1551 if (h != NULL && !info->shared)
1552 {
1553 /* We may need a .plt entry if the function this reloc
1554 refers to is in a shared lib. */
1555 h->plt.refcount += 1;
1556 }
1557
1558 /* If we are creating a shared library, and this is a reloc
1559 against a global symbol, or a non PC relative reloc
1560 against a local symbol, then we need to copy the reloc
1561 into the shared library. However, if we are linking with
1562 -Bsymbolic, we do not need to copy a reloc against a
1563 global symbol which is defined in an object we are
1564 including in the link (i.e., DEF_REGULAR is set). At
1565 this point we have not seen all the input files, so it is
1566 possible that DEF_REGULAR is not set now but will be set
1567 later (it is never cleared). In case of a weak definition,
1568 DEF_REGULAR may be cleared later by a strong definition in
1569 a shared library. We account for that possibility below by
1570 storing information in the relocs_copied field of the hash
1571 table entry. A similar situation occurs when creating
1572 shared libraries and symbol visibility changes render the
1573 symbol local.
1574
1575 If on the other hand, we are creating an executable, we
1576 may need to keep relocations for symbols satisfied by a
1577 dynamic library if we manage to avoid copy relocs for the
1578 symbol. */
1579 if ((info->shared
1580 && (sec->flags & SEC_ALLOC) != 0
1581 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1582 || (h != NULL
72fbc6e5 1583 && (! SYMBOLIC_BIND (info, h)
22b75d0a
DM		 1584 || h->root.type == bfd_link_hash_defweak
1585 || !h->def_regular))))
1586 || (!info->shared
1587 && (sec->flags & SEC_ALLOC) != 0
1588 && h != NULL
1589 && (h->root.type == bfd_link_hash_defweak
d0c9aeb3
DM		 1590 || !h->def_regular))
1591 || (!info->shared
1592 && h != NULL
1593 && h->type == STT_GNU_IFUNC))
22b75d0a
DM		 1594 {
1595 struct _bfd_sparc_elf_dyn_relocs *p;
1596 struct _bfd_sparc_elf_dyn_relocs **head;
1597
1598 /* When creating a shared object, we must copy these
1599 relocs into the output file. We create a reloc
1600 section in dynobj and make room for the reloc. */
1601 if (sreloc == NULL)
1602 {
83bac4b0
NC		 1603 sreloc = _bfd_elf_make_dynamic_reloc_section
1604 (sec, htab->elf.dynobj, htab->word_align_power,
1605 abfd, /*rela?*/ TRUE);
1606
22b75d0a 1607 if (sreloc == NULL)
83bac4b0 1608 return FALSE;
22b75d0a
DM		 1609 }
1610
1611 /* If this is a global symbol, we count the number of
1612 relocations we need for this symbol. */
1613 if (h != NULL)
1614 head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
1615 else
1616 {
1617 /* Track dynamic relocs needed for local syms too.
1618 We really need local syms available to do this
1619 easily. Oh well. */
22b75d0a 1620 asection *s;
6edfbbad 1621 void *vpp;
22b75d0a 1622
d0c9aeb3 1623 BFD_ASSERT (isym != NULL);
87d72d41
AM		 1624 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1625 if (s == NULL)
1626 s = sec;
1627
6edfbbad
DJ		 1628 vpp = &elf_section_data (s)->local_dynrel;
1629 head = (struct _bfd_sparc_elf_dyn_relocs **) vpp;
22b75d0a
DM		 1630 }
1631
1632 p = *head;
1633 if (p == NULL || p->sec != sec)
1634 {
1635 bfd_size_type amt = sizeof *p;
1636 p = ((struct _bfd_sparc_elf_dyn_relocs *)
1637 bfd_alloc (htab->elf.dynobj, amt));
1638 if (p == NULL)
1639 return FALSE;
1640 p->next = *head;
1641 *head = p;
1642 p->sec = sec;
1643 p->count = 0;
1644 p->pc_count = 0;
1645 }
1646
1647 p->count += 1;
1648 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1649 p->pc_count += 1;
1650 }
1651
1652 break;
1653
1654 case R_SPARC_GNU_VTINHERIT:
1655 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1656 return FALSE;
1657 break;
1658
1659 case R_SPARC_GNU_VTENTRY:
d17e0c6e
JB		 1660 BFD_ASSERT (h != NULL);
1661 if (h != NULL
1662 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
22b75d0a
DM		 1663 return FALSE;
1664 break;
1665
1666 case R_SPARC_REGISTER:
1667 /* Nothing to do. */
1668 break;
1669
1670 default:
1671 break;
1672 }
1673 }
1674
1675 return TRUE;
1676}
1677\f
1678asection *
1679_bfd_sparc_elf_gc_mark_hook (asection *sec,
1680 struct bfd_link_info *info,
1681 Elf_Internal_Rela *rel,
1682 struct elf_link_hash_entry *h,
1683 Elf_Internal_Sym *sym)
1684{
1685 if (h != NULL)
07adf181 1686 switch (SPARC_ELF_R_TYPE (rel->r_info))
22b75d0a
DM		 1687 {
1688 case R_SPARC_GNU_VTINHERIT:
1689 case R_SPARC_GNU_VTENTRY:
07adf181 1690 return NULL;
22b75d0a 1691 }
22b75d0a 1692
07adf181 1693 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
22b75d0a
DM		 1694}
1695
1696/* Update the got entry reference counts for the section being removed. */
1697bfd_boolean
1698_bfd_sparc_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
1699 asection *sec, const Elf_Internal_Rela *relocs)
1700{
1701 struct _bfd_sparc_elf_link_hash_table *htab;
1702 Elf_Internal_Shdr *symtab_hdr;
1703 struct elf_link_hash_entry **sym_hashes;
1704 bfd_signed_vma *local_got_refcounts;
1705 const Elf_Internal_Rela *rel, *relend;
1706
7dda2462
TG		 1707 if (info->relocatable)
1708 return TRUE;
1709
0ffa91dd
NC		 1710 BFD_ASSERT (is_sparc_elf (abfd) || sec->reloc_count == 0);
1711
22b75d0a
DM		 1712 elf_section_data (sec)->local_dynrel = NULL;
1713
1714 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1715 BFD_ASSERT (htab != NULL);
0ffa91dd 1716 symtab_hdr = &elf_symtab_hdr (abfd);
22b75d0a
DM		 1717 sym_hashes = elf_sym_hashes (abfd);
1718 local_got_refcounts = elf_local_got_refcounts (abfd);
1719
1720 relend = relocs + sec->reloc_count;
1721 for (rel = relocs; rel < relend; rel++)
1722 {
1723 unsigned long r_symndx;
1724 unsigned int r_type;
1725 struct elf_link_hash_entry *h = NULL;
1726
1727 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1728 if (r_symndx >= symtab_hdr->sh_info)
1729 {
1730 struct _bfd_sparc_elf_link_hash_entry *eh;
1731 struct _bfd_sparc_elf_dyn_relocs **pp;
1732 struct _bfd_sparc_elf_dyn_relocs *p;
1733
1734 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1735 while (h->root.type == bfd_link_hash_indirect
1736 || h->root.type == bfd_link_hash_warning)
1737 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1738 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1739 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1740 if (p->sec == sec)
1741 {
1742 /* Everything must go for SEC. */
1743 *pp = p->next;
1744 break;
1745 }
1746 }
1747
1748 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1749 r_type = sparc_elf_tls_transition (info, abfd, r_type, h != NULL);
1750 switch (r_type)
1751 {
1752 case R_SPARC_TLS_LDM_HI22:
1753 case R_SPARC_TLS_LDM_LO10:
1754 if (_bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount > 0)
1755 _bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount -= 1;
1756 break;
1757
1758 case R_SPARC_TLS_GD_HI22:
1759 case R_SPARC_TLS_GD_LO10:
1760 case R_SPARC_TLS_IE_HI22:
1761 case R_SPARC_TLS_IE_LO10:
1762 case R_SPARC_GOT10:
1763 case R_SPARC_GOT13:
1764 case R_SPARC_GOT22:
739f7f82
DM		 1765 case R_SPARC_GOTDATA_HIX22:
1766 case R_SPARC_GOTDATA_LOX10:
1767 case R_SPARC_GOTDATA_OP_HIX22:
1768 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1769 if (h != NULL)
1770 {
1771 if (h->got.refcount > 0)
1772 h->got.refcount--;
1773 }
1774 else
1775 {
00c50991
DM		 1776 switch (r_type)
1777 {
1778 case R_SPARC_GOTDATA_OP_HIX22:
1779 case R_SPARC_GOTDATA_OP_LOX10:
1780 break;
1781
1782 default:
1783 if (local_got_refcounts[r_symndx] > 0)
1784 local_got_refcounts[r_symndx]--;
1785 break;
1786 }
22b75d0a
DM		 1787 }
1788 break;
1789
1790 case R_SPARC_PC10:
1791 case R_SPARC_PC22:
1792 case R_SPARC_PC_HH22:
1793 case R_SPARC_PC_HM10:
1794 case R_SPARC_PC_LM22:
1795 if (h != NULL
1796 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1797 break;
1798 /* Fall through. */
1799
1800 case R_SPARC_DISP8:
1801 case R_SPARC_DISP16:
1802 case R_SPARC_DISP32:
1803 case R_SPARC_DISP64:
1804 case R_SPARC_WDISP30:
1805 case R_SPARC_WDISP22:
1806 case R_SPARC_WDISP19:
1807 case R_SPARC_WDISP16:
1808 case R_SPARC_8:
1809 case R_SPARC_16:
1810 case R_SPARC_32:
1811 case R_SPARC_HI22:
1812 case R_SPARC_22:
1813 case R_SPARC_13:
1814 case R_SPARC_LO10:
1815 case R_SPARC_UA16:
1816 case R_SPARC_UA32:
1817 case R_SPARC_PLT32:
1818 case R_SPARC_10:
1819 case R_SPARC_11:
1820 case R_SPARC_64:
1821 case R_SPARC_OLO10:
1822 case R_SPARC_HH22:
1823 case R_SPARC_HM10:
1824 case R_SPARC_LM22:
1825 case R_SPARC_7:
1826 case R_SPARC_5:
1827 case R_SPARC_6:
1828 case R_SPARC_HIX22:
1829 case R_SPARC_LOX10:
1830 case R_SPARC_H44:
1831 case R_SPARC_M44:
1832 case R_SPARC_L44:
1833 case R_SPARC_UA64:
1834 if (info->shared)
1835 break;
1836 /* Fall through. */
1837
1838 case R_SPARC_WPLT30:
1839 if (h != NULL)
1840 {
1841 if (h->plt.refcount > 0)
1842 h->plt.refcount--;
1843 }
1844 break;
1845
1846 default:
1847 break;
1848 }
1849 }
1850
1851 return TRUE;
1852}
1853
1854/* Adjust a symbol defined by a dynamic object and referenced by a
1855 regular object. The current definition is in some section of the
1856 dynamic object, but we're not including those sections. We have to
1857 change the definition to something the rest of the link can
1858 understand. */
1859
1860bfd_boolean
1861_bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1862 struct elf_link_hash_entry *h)
1863{
1864 struct _bfd_sparc_elf_link_hash_table *htab;
1865 struct _bfd_sparc_elf_link_hash_entry * eh;
1866 struct _bfd_sparc_elf_dyn_relocs *p;
1867 asection *s;
22b75d0a
DM		 1868
1869 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1870 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 1871
1872 /* Make sure we know what is going on here. */
1873 BFD_ASSERT (htab->elf.dynobj != NULL
1874 && (h->needs_plt
d0c9aeb3 1875 || h->type == STT_GNU_IFUNC
22b75d0a
DM		 1876 || h->u.weakdef != NULL
1877 || (h->def_dynamic
1878 && h->ref_regular
1879 && !h->def_regular)));
1880
1881 /* If this is a function, put it in the procedure linkage table. We
1882 will fill in the contents of the procedure linkage table later
1883 (although we could actually do it here). The STT_NOTYPE
1884 condition is a hack specifically for the Oracle libraries
1885 delivered for Solaris; for some inexplicable reason, they define
1886 some of their functions as STT_NOTYPE when they really should be
1887 STT_FUNC. */
1888 if (h->type == STT_FUNC
d0c9aeb3 1889 || h->type == STT_GNU_IFUNC
22b75d0a
DM		 1890 || h->needs_plt
1891 || (h->type == STT_NOTYPE
1892 && (h->root.type == bfd_link_hash_defined
1893 || h->root.type == bfd_link_hash_defweak)
1894 && (h->root.u.def.section->flags & SEC_CODE) != 0))
1895 {
1896 if (h->plt.refcount <= 0
d0c9aeb3
DM		 1897 || (h->type != STT_GNU_IFUNC
1898 && (SYMBOL_CALLS_LOCAL (info, h)
1899 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1900 && h->root.type == bfd_link_hash_undefweak))))
22b75d0a
DM		 1901 {
1902 /* This case can occur if we saw a WPLT30 reloc in an input
1903 file, but the symbol was never referred to by a dynamic
1904 object, or if all references were garbage collected. In
1905 such a case, we don't actually need to build a procedure
1906 linkage table, and we can just do a WDISP30 reloc instead. */
1907 h->plt.offset = (bfd_vma) -1;
1908 h->needs_plt = 0;
1909 }
1910
1911 return TRUE;
1912 }
1913 else
1914 h->plt.offset = (bfd_vma) -1;
1915
1916 /* If this is a weak symbol, and there is a real definition, the
1917 processor independent code will have arranged for us to see the
1918 real definition first, and we can just use the same value. */
1919 if (h->u.weakdef != NULL)
1920 {
1921 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1922 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1923 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1924 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1925 return TRUE;
1926 }
1927
1928 /* This is a reference to a symbol defined by a dynamic object which
1929 is not a function. */
1930
1931 /* If we are creating a shared library, we must presume that the
1932 only references to the symbol are via the global offset table.
1933 For such cases we need not do anything here; the relocations will
1934 be handled correctly by relocate_section. */
1935 if (info->shared)
1936 return TRUE;
1937
1938 /* If there are no references to this symbol that do not use the
1939 GOT, we don't need to generate a copy reloc. */
1940 if (!h->non_got_ref)
1941 return TRUE;
1942
72fbc6e5
DM		 1943 /* If -z nocopyreloc was given, we won't generate them either. */
1944 if (info->nocopyreloc)
1945 {
1946 h->non_got_ref = 0;
1947 return TRUE;
1948 }
1949
22b75d0a
DM		 1950 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1951 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1952 {
1953 s = p->sec->output_section;
1954 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1955 break;
1956 }
1957
1958 /* If we didn't find any dynamic relocs in read-only sections, then
1959 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1960 if (p == NULL)
1961 {
1962 h->non_got_ref = 0;
1963 return TRUE;
1964 }
1965
909272ee
AM		 1966 if (h->size == 0)
1967 {
1968 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1969 h->root.root.string);
1970 return TRUE;
1971 }
1972
22b75d0a
DM		 1973 /* We must allocate the symbol in our .dynbss section, which will
1974 become part of the .bss section of the executable. There will be
1975 an entry for this symbol in the .dynsym section. The dynamic
1976 object will contain position independent code, so all references
1977 from the dynamic object to this symbol will go through the global
1978 offset table. The dynamic linker will use the .dynsym entry to
1979 determine the address it must put in the global offset table, so
1980 both the dynamic object and the regular object will refer to the
1981 same memory location for the variable. */
1982
1983 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
1984 to copy the initial value out of the dynamic object and into the
1985 runtime process image. We need to remember the offset into the
1986 .rel.bss section we are going to use. */
1987 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1988 {
1989 htab->srelbss->size += SPARC_ELF_RELA_BYTES (htab);
1990 h->needs_copy = 1;
1991 }
1992
22b75d0a 1993 s = htab->sdynbss;
22b75d0a 1994
027297b7 1995 return _bfd_elf_adjust_dynamic_copy (h, s);
22b75d0a
DM		 1996}
1997
1998/* Allocate space in .plt, .got and associated reloc sections for
1999 dynamic relocs. */
2000
2001static bfd_boolean
2002allocate_dynrelocs (struct elf_link_hash_entry *h, PTR inf)
2003{
2004 struct bfd_link_info *info;
2005 struct _bfd_sparc_elf_link_hash_table *htab;
2006 struct _bfd_sparc_elf_link_hash_entry *eh;
2007 struct _bfd_sparc_elf_dyn_relocs *p;
2008
2009 if (h->root.type == bfd_link_hash_indirect)
2010 return TRUE;
2011
2012 if (h->root.type == bfd_link_hash_warning)
2013 /* When warning symbols are created, they **replace** the "real"
2014 entry in the hash table, thus we never get to see the real
2015 symbol in a hash traversal. So look at it now. */
2016 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2017
2018 info = (struct bfd_link_info *) inf;
2019 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2020 BFD_ASSERT (htab != NULL);
22b75d0a 2021
d0c9aeb3
DM		 2022 if ((htab->elf.dynamic_sections_created
2023 && h->plt.refcount > 0)
2024 || (h->type == STT_GNU_IFUNC
2025 && h->def_regular))
22b75d0a
DM		 2026 {
2027 /* Make sure this symbol is output as a dynamic symbol.
2028 Undefined weak syms won't yet be marked as dynamic. */
2029 if (h->dynindx == -1
2030 && !h->forced_local)
2031 {
2032 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2033 return FALSE;
2034 }
2035
d0c9aeb3
DM		 2036 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)
2037 || h->type == STT_GNU_IFUNC)
22b75d0a 2038 {
72fbc6e5 2039 asection *s = htab->elf.splt;
22b75d0a 2040
d0c9aeb3
DM		 2041 if (s == NULL)
2042 s = htab->elf.iplt;
2043
910600e9 2044 /* Allocate room for the header. */
22b75d0a 2045 if (s->size == 0)
910600e9
RS		 2046 {
2047 s->size = htab->plt_header_size;
2048
2049 /* Allocate space for the .rela.plt.unloaded relocations. */
2050 if (htab->is_vxworks && !info->shared)
2051 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2052 }
22b75d0a
DM		 2053
2054 /* The procedure linkage table size is bounded by the magnitude
2055 of the offset we can describe in the entry. */
2056 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
e8be8da4 2057 (((bfd_vma)1 << 31) << 1) : 0x400000))
22b75d0a
DM		 2058 {
2059 bfd_set_error (bfd_error_bad_value);
2060 return FALSE;
2061 }
2062
2063 if (SPARC_ELF_WORD_BYTES(htab) == 8
2064 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2065 {
2066 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2067
2068
2069 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2070
2071 h->plt.offset = (s->size - (off * 8));
2072 }
2073 else
2074 h->plt.offset = s->size;
2075
2076 /* If this symbol is not defined in a regular file, and we are
2077 not generating a shared library, then set the symbol to this
2078 location in the .plt. This is required to make function
2079 pointers compare as equal between the normal executable and
2080 the shared library. */
2081 if (! info->shared
2082 && !h->def_regular)
2083 {
2084 h->root.u.def.section = s;
2085 h->root.u.def.value = h->plt.offset;
2086 }
2087
2088 /* Make room for this entry. */
910600e9 2089 s->size += htab->plt_entry_size;
22b75d0a
DM		 2090
2091 /* We also need to make an entry in the .rela.plt section. */
d0c9aeb3
DM		 2092 if (s == htab->elf.splt)
2093 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
2094 else
2095 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
910600e9
RS		 2096
2097 if (htab->is_vxworks)
2098 {
2099 /* Allocate space for the .got.plt entry. */
72fbc6e5 2100 htab->elf.sgotplt->size += 4;
910600e9
RS		 2101
2102 /* ...and for the .rela.plt.unloaded relocations. */
2103 if (!info->shared)
2104 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2105 }
22b75d0a
DM		 2106 }
2107 else
2108 {
2109 h->plt.offset = (bfd_vma) -1;
2110 h->needs_plt = 0;
2111 }
2112 }
2113 else
2114 {
2115 h->plt.offset = (bfd_vma) -1;
2116 h->needs_plt = 0;
2117 }
2118
2119 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2120 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2121 if (h->got.refcount > 0
2122 && !info->shared
2123 && h->dynindx == -1
2124 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2125 h->got.offset = (bfd_vma) -1;
2126 else if (h->got.refcount > 0)
2127 {
2128 asection *s;
2129 bfd_boolean dyn;
2130 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2131
2132 /* Make sure this symbol is output as a dynamic symbol.
2133 Undefined weak syms won't yet be marked as dynamic. */
2134 if (h->dynindx == -1
2135 && !h->forced_local)
2136 {
2137 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2138 return FALSE;
2139 }
2140
72fbc6e5 2141 s = htab->elf.sgot;
22b75d0a
DM		 2142 h->got.offset = s->size;
2143 s->size += SPARC_ELF_WORD_BYTES (htab);
2144 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2145 if (tls_type == GOT_TLS_GD)
2146 s->size += SPARC_ELF_WORD_BYTES (htab);
2147 dyn = htab->elf.dynamic_sections_created;
2148 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2149 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
2150 global. */
2151 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
d0c9aeb3
DM		 2152 || tls_type == GOT_TLS_IE
2153 || h->type == STT_GNU_IFUNC)
72fbc6e5 2154 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a 2155 else if (tls_type == GOT_TLS_GD)
72fbc6e5 2156 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
22b75d0a 2157 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
72fbc6e5 2158 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2159 }
2160 else
2161 h->got.offset = (bfd_vma) -1;
2162
2163 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2164 if (eh->dyn_relocs == NULL)
2165 return TRUE;
2166
2167 /* In the shared -Bsymbolic case, discard space allocated for
2168 dynamic pc-relative relocs against symbols which turn out to be
2169 defined in regular objects. For the normal shared case, discard
2170 space for pc-relative relocs that have become local due to symbol
2171 visibility changes. */
2172
2173 if (info->shared)
2174 {
72fbc6e5 2175 if (SYMBOL_CALLS_LOCAL (info, h))
22b75d0a
DM		 2176 {
2177 struct _bfd_sparc_elf_dyn_relocs **pp;
2178
2179 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2180 {
2181 p->count -= p->pc_count;
2182 p->pc_count = 0;
2183 if (p->count == 0)
2184 *pp = p->next;
2185 else
2186 pp = &p->next;
2187 }
2188 }
22d606e9 2189
3348747a
NS		 2190 if (htab->is_vxworks)
2191 {
2192 struct _bfd_sparc_elf_dyn_relocs **pp;
2193
2194 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2195 {
2196 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2197 *pp = p->next;
2198 else
2199 pp = &p->next;
2200 }
2201 }
2202
22d606e9
AM		 2203 /* Also discard relocs on undefined weak syms with non-default
2204 visibility. */
2205 if (eh->dyn_relocs != NULL
2206 && h->root.type == bfd_link_hash_undefweak)
2207 {
2208 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2209 eh->dyn_relocs = NULL;
2210
2211 /* Make sure undefined weak symbols are output as a dynamic
2212 symbol in PIEs. */
2213 else if (h->dynindx == -1
2214 && !h->forced_local)
2215 {
2216 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2217 return FALSE;
2218 }
2219 }
22b75d0a
DM		 2220 }
2221 else
2222 {
2223 /* For the non-shared case, discard space for relocs against
2224 symbols which turn out to need copy relocs or are not
2225 dynamic. */
2226
2227 if (!h->non_got_ref
2228 && ((h->def_dynamic
2229 && !h->def_regular)
2230 || (htab->elf.dynamic_sections_created
2231 && (h->root.type == bfd_link_hash_undefweak
2232 || h->root.type == bfd_link_hash_undefined))))
2233 {
2234 /* Make sure this symbol is output as a dynamic symbol.
2235 Undefined weak syms won't yet be marked as dynamic. */
2236 if (h->dynindx == -1
2237 && !h->forced_local)
2238 {
2239 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2240 return FALSE;
2241 }
2242
2243 /* If that succeeded, we know we'll be keeping all the
2244 relocs. */
2245 if (h->dynindx != -1)
2246 goto keep;
2247 }
2248
2249 eh->dyn_relocs = NULL;
2250
2251 keep: ;
2252 }
2253
2254 /* Finally, allocate space. */
2255 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2256 {
2257 asection *sreloc = elf_section_data (p->sec)->sreloc;
2258 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2259 }
2260
2261 return TRUE;
2262}
2263
d0c9aeb3
DM		 2264/* Allocate space in .plt, .got and associated reloc sections for
2265 local dynamic relocs. */
2266
2267static bfd_boolean
2268allocate_local_dynrelocs (void **slot, void *inf)
2269{
2270 struct elf_link_hash_entry *h
2271 = (struct elf_link_hash_entry *) *slot;
2272
2273 if (h->type != STT_GNU_IFUNC
2274 || !h->def_regular
2275 || !h->ref_regular
2276 || !h->forced_local
2277 || h->root.type != bfd_link_hash_defined)
2278 abort ();
2279
2280 return allocate_dynrelocs (h, inf);
2281}
2282
22b75d0a
DM		 2283/* Find any dynamic relocs that apply to read-only sections. */
2284
2285static bfd_boolean
2286readonly_dynrelocs (struct elf_link_hash_entry *h, PTR inf)
2287{
2288 struct _bfd_sparc_elf_link_hash_entry *eh;
2289 struct _bfd_sparc_elf_dyn_relocs *p;
2290
2291 if (h->root.type == bfd_link_hash_warning)
2292 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2293
2294 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2295 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2296 {
2297 asection *s = p->sec->output_section;
2298
2299 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2300 {
2301 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2302
2303 info->flags |= DF_TEXTREL;
2304
2305 /* Not an error, just cut short the traversal. */
2306 return FALSE;
2307 }
2308 }
2309 return TRUE;
2310}
2311
2312/* Return true if the dynamic symbol for a given section should be
2313 omitted when creating a shared library. */
2314
2315bfd_boolean
2316_bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2317 struct bfd_link_info *info,
2318 asection *p)
2319{
2320 /* We keep the .got section symbol so that explicit relocations
2321 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2322 can be turned into relocations against the .got symbol. */
2323 if (strcmp (p->name, ".got") == 0)
2324 return FALSE;
2325
2326 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2327}
2328
2329/* Set the sizes of the dynamic sections. */
2330
2331bfd_boolean
2332_bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2333 struct bfd_link_info *info)
2334{
2335 struct _bfd_sparc_elf_link_hash_table *htab;
2336 bfd *dynobj;
2337 asection *s;
2338 bfd *ibfd;
2339
2340 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2341 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 2342 dynobj = htab->elf.dynobj;
2343 BFD_ASSERT (dynobj != NULL);
2344
2345 if (elf_hash_table (info)->dynamic_sections_created)
2346 {
2347 /* Set the contents of the .interp section to the interpreter. */
2348 if (info->executable)
2349 {
2350 s = bfd_get_section_by_name (dynobj, ".interp");
2351 BFD_ASSERT (s != NULL);
2352 s->size = htab->dynamic_interpreter_size;
2353 s->contents = (unsigned char *) htab->dynamic_interpreter;
2354 }
2355 }
2356
2357 /* Set up .got offsets for local syms, and space for local dynamic
2358 relocs. */
2359 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2360 {
2361 bfd_signed_vma *local_got;
2362 bfd_signed_vma *end_local_got;
2363 char *local_tls_type;
2364 bfd_size_type locsymcount;
2365 Elf_Internal_Shdr *symtab_hdr;
2366 asection *srel;
2367
0ffa91dd 2368 if (! is_sparc_elf (ibfd))
22b75d0a
DM		 2369 continue;
2370
2371 for (s = ibfd->sections; s != NULL; s = s->next)
2372 {
2373 struct _bfd_sparc_elf_dyn_relocs *p;
2374
6edfbbad 2375 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
22b75d0a
DM		 2376 {
2377 if (!bfd_is_abs_section (p->sec)
2378 && bfd_is_abs_section (p->sec->output_section))
2379 {
2380 /* Input section has been discarded, either because
2381 it is a copy of a linkonce section or due to
2382 linker script /DISCARD/, so we'll be discarding
2383 the relocs too. */
2384 }
3348747a
NS		 2385 else if (htab->is_vxworks
2386 && strcmp (p->sec->output_section->name,
2387 ".tls_vars") == 0)
2388 {
2389 /* Relocations in vxworks .tls_vars sections are
2390 handled specially by the loader. */
2391 }
22b75d0a
DM		 2392 else if (p->count != 0)
2393 {
2394 srel = elf_section_data (p->sec)->sreloc;
d0c9aeb3
DM		 2395 if (!htab->elf.dynamic_sections_created)
2396 srel = htab->elf.irelplt;
22b75d0a
DM		 2397 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2398 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2399 info->flags |= DF_TEXTREL;
2400 }
2401 }
2402 }
2403
2404 local_got = elf_local_got_refcounts (ibfd);
2405 if (!local_got)
2406 continue;
2407
0ffa91dd 2408 symtab_hdr = &elf_symtab_hdr (ibfd);
22b75d0a
DM		 2409 locsymcount = symtab_hdr->sh_info;
2410 end_local_got = local_got + locsymcount;
2411 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
72fbc6e5
DM		 2412 s = htab->elf.sgot;
2413 srel = htab->elf.srelgot;
22b75d0a
DM		 2414 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2415 {
2416 if (*local_got > 0)
2417 {
2418 *local_got = s->size;
2419 s->size += SPARC_ELF_WORD_BYTES (htab);
2420 if (*local_tls_type == GOT_TLS_GD)
2421 s->size += SPARC_ELF_WORD_BYTES (htab);
2422 if (info->shared
2423 || *local_tls_type == GOT_TLS_GD
2424 || *local_tls_type == GOT_TLS_IE)
2425 srel->size += SPARC_ELF_RELA_BYTES (htab);
2426 }
2427 else
2428 *local_got = (bfd_vma) -1;
2429 }
2430 }
2431
2432 if (htab->tls_ldm_got.refcount > 0)
2433 {
2434 /* Allocate 2 got entries and 1 dynamic reloc for
2435 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
72fbc6e5
DM		 2436 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2437 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2438 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2439 }
2440 else
2441 htab->tls_ldm_got.offset = -1;
2442
2443 /* Allocate global sym .plt and .got entries, and space for global
2444 sym dynamic relocs. */
2445 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info);
2446
d0c9aeb3
DM		 2447 /* Allocate .plt and .got entries, and space for local symbols. */
2448 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2449
22b75d0a 2450 if (! ABI_64_P (output_bfd)
910600e9 2451 && !htab->is_vxworks
22b75d0a
DM		 2452 && elf_hash_table (info)->dynamic_sections_created)
2453 {
2454 /* Make space for the trailing nop in .plt. */
72fbc6e5
DM		 2455 if (htab->elf.splt->size > 0)
2456 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
22b75d0a
DM		 2457
2458 /* If the .got section is more than 0x1000 bytes, we add
2459 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2460 bit relocations have a greater chance of working.
2461
2462 FIXME: Make this optimization work for 64-bit too. */
72fbc6e5 2463 if (htab->elf.sgot->size >= 0x1000
22b75d0a
DM		 2464 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2465 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2466 }
2467
2468 /* The check_relocs and adjust_dynamic_symbol entry points have
2469 determined the sizes of the various dynamic sections. Allocate
2470 memory for them. */
2471 for (s = dynobj->sections; s != NULL; s = s->next)
2472 {
22b75d0a
DM		 2473 if ((s->flags & SEC_LINKER_CREATED) == 0)
2474 continue;
2475
72fbc6e5
DM		 2476 if (s == htab->elf.splt
2477 || s == htab->elf.sgot
910600e9 2478 || s == htab->sdynbss
d0c9aeb3 2479 || s == htab->elf.iplt
72fbc6e5 2480 || s == htab->elf.sgotplt)
22b75d0a 2481 {
c456f082
AM		 2482 /* Strip this section if we don't need it; see the
2483 comment below. */
2484 }
0112cd26 2485 else if (CONST_STRNEQ (s->name, ".rela"))
c456f082
AM		 2486 {
2487 if (s->size != 0)
22b75d0a
DM		 2488 {
2489 /* We use the reloc_count field as a counter if we need
2490 to copy relocs into the output file. */
2491 s->reloc_count = 0;
2492 }
2493 }
c456f082 2494 else
22b75d0a 2495 {
c456f082 2496 /* It's not one of our sections. */
22b75d0a
DM		 2497 continue;
2498 }
2499
c456f082 2500 if (s->size == 0)
22b75d0a 2501 {
c456f082
AM		 2502 /* If we don't need this section, strip it from the
2503 output file. This is mostly to handle .rela.bss and
2504 .rela.plt. We must create both sections in
2505 create_dynamic_sections, because they must be created
2506 before the linker maps input sections to output
2507 sections. The linker does that before
2508 adjust_dynamic_symbol is called, and it is that
2509 function which decides whether anything needs to go
2510 into these sections. */
8423293d 2511 s->flags |= SEC_EXCLUDE;
22b75d0a
DM		 2512 continue;
2513 }
2514
c456f082
AM		 2515 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2516 continue;
2517
22b75d0a
DM		 2518 /* Allocate memory for the section contents. Zero the memory
2519 for the benefit of .rela.plt, which has 4 unused entries
2520 at the beginning, and we don't want garbage. */
2521 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
c456f082 2522 if (s->contents == NULL)
22b75d0a
DM		 2523 return FALSE;
2524 }
2525
2526 if (elf_hash_table (info)->dynamic_sections_created)
2527 {
2528 /* Add some entries to the .dynamic section. We fill in the
2529 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2530 must add the entries now so that we get the correct size for
2531 the .dynamic section. The DT_DEBUG entry is filled in by the
2532 dynamic linker and used by the debugger. */
2533#define add_dynamic_entry(TAG, VAL) \
2534 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2535
2536 if (info->executable)
2537 {
2538 if (!add_dynamic_entry (DT_DEBUG, 0))
2539 return FALSE;
2540 }
2541
72fbc6e5 2542 if (htab->elf.srelplt->size != 0)
22b75d0a
DM		 2543 {
2544 if (!add_dynamic_entry (DT_PLTGOT, 0)
2545 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2546 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2547 || !add_dynamic_entry (DT_JMPREL, 0))
2548 return FALSE;
2549 }
2550
2551 if (!add_dynamic_entry (DT_RELA, 0)
2552 || !add_dynamic_entry (DT_RELASZ, 0)
2553 || !add_dynamic_entry (DT_RELAENT,
2554 SPARC_ELF_RELA_BYTES (htab)))
2555 return FALSE;
2556
2557 /* If any dynamic relocs apply to a read-only section,
2558 then we need a DT_TEXTREL entry. */
2559 if ((info->flags & DF_TEXTREL) == 0)
2560 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
2561 (PTR) info);
2562
2563 if (info->flags & DF_TEXTREL)
2564 {
2565 if (!add_dynamic_entry (DT_TEXTREL, 0))
2566 return FALSE;
2567 }
2568
2569 if (ABI_64_P (output_bfd))
2570 {
2571 int reg;
2572 struct _bfd_sparc_elf_app_reg * app_regs;
2573 struct elf_strtab_hash *dynstr;
2574 struct elf_link_hash_table *eht = elf_hash_table (info);
2575
2576 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2577 entries if needed. */
2578 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2579 dynstr = eht->dynstr;
2580
2581 for (reg = 0; reg < 4; reg++)
2582 if (app_regs [reg].name != NULL)
2583 {
2584 struct elf_link_local_dynamic_entry *entry, *e;
2585
2586 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2587 return FALSE;
2588
2589 entry = (struct elf_link_local_dynamic_entry *)
2590 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2591 if (entry == NULL)
2592 return FALSE;
2593
2594 /* We cheat here a little bit: the symbol will not be local, so we
2595 put it at the end of the dynlocal linked list. We will fix it
2596 later on, as we have to fix other fields anyway. */
2597 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2598 entry->isym.st_size = 0;
2599 if (*app_regs [reg].name != '\0')
2600 entry->isym.st_name
2601 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2602 else
2603 entry->isym.st_name = 0;
2604 entry->isym.st_other = 0;
2605 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2606 STT_REGISTER);
2607 entry->isym.st_shndx = app_regs [reg].shndx;
2608 entry->next = NULL;
2609 entry->input_bfd = output_bfd;
2610 entry->input_indx = -1;
2611
2612 if (eht->dynlocal == NULL)
2613 eht->dynlocal = entry;
2614 else
2615 {
2616 for (e = eht->dynlocal; e->next; e = e->next)
2617 ;
2618 e->next = entry;
2619 }
2620 eht->dynsymcount++;
2621 }
2622 }
7a2b07ff
NS		 2623 if (htab->is_vxworks
2624 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2625 return FALSE;
22b75d0a
DM		 2626 }
2627#undef add_dynamic_entry
2628
2629 return TRUE;
2630}
2631\f
2632bfd_boolean
2633_bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2634{
f592407e
AM		 2635 if (!sec->used_by_bfd)
2636 {
2637 struct _bfd_sparc_elf_section_data *sdata;
2638 bfd_size_type amt = sizeof (*sdata);
22b75d0a 2639
f592407e
AM		 2640 sdata = bfd_zalloc (abfd, amt);
2641 if (sdata == NULL)
2642 return FALSE;
2643 sec->used_by_bfd = sdata;
2644 }
22b75d0a
DM		 2645
2646 return _bfd_elf_new_section_hook (abfd, sec);
2647}
2648
2649bfd_boolean
2650_bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2651 struct bfd_section *section,
2652 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2653 bfd_boolean *again)
2654{
c8a1f254
NS		 2655 if (link_info->relocatable)
2656 (*link_info->callbacks->einfo)
2657 (_("%P%F: --relax and -r may not be used together\n"));
2658
22b75d0a
DM		 2659 *again = FALSE;
2660 sec_do_relax (section) = 1;
2661 return TRUE;
2662}
2663\f
2664/* Return the base VMA address which should be subtracted from real addresses
2665 when resolving @dtpoff relocation.
2666 This is PT_TLS segment p_vaddr. */
2667
2668static bfd_vma
2669dtpoff_base (struct bfd_link_info *info)
2670{
2671 /* If tls_sec is NULL, we should have signalled an error already. */
2672 if (elf_hash_table (info)->tls_sec == NULL)
2673 return 0;
2674 return elf_hash_table (info)->tls_sec->vma;
2675}
2676
2677/* Return the relocation value for @tpoff relocation
2678 if STT_TLS virtual address is ADDRESS. */
2679
2680static bfd_vma
2681tpoff (struct bfd_link_info *info, bfd_vma address)
2682{
2683 struct elf_link_hash_table *htab = elf_hash_table (info);
2684
2685 /* If tls_sec is NULL, we should have signalled an error already. */
2686 if (htab->tls_sec == NULL)
2687 return 0;
2688 return address - htab->tls_size - htab->tls_sec->vma;
2689}
2690
00c50991
DM		 2691/* Return the relocation value for a %gdop relocation. */
2692
2693static bfd_vma
2694gdopoff (struct bfd_link_info *info, bfd_vma address)
2695{
2696 struct elf_link_hash_table *htab = elf_hash_table (info);
2697 bfd_vma got_base;
2698
2699 got_base = (htab->hgot->root.u.def.value
2700 + htab->hgot->root.u.def.section->output_offset
2701 + htab->hgot->root.u.def.section->output_section->vma);
2702
2703 return address - got_base;
2704}
2705
22b75d0a
DM		 2706/* Relocate a SPARC ELF section. */
2707
2708bfd_boolean
ab96bf03
AM		 2709_bfd_sparc_elf_relocate_section (bfd *output_bfd,
2710 struct bfd_link_info *info,
2711 bfd *input_bfd,
2712 asection *input_section,
2713 bfd_byte *contents,
2714 Elf_Internal_Rela *relocs,
2715 Elf_Internal_Sym *local_syms,
2716 asection **local_sections)
22b75d0a
DM		 2717{
2718 struct _bfd_sparc_elf_link_hash_table *htab;
2719 Elf_Internal_Shdr *symtab_hdr;
2720 struct elf_link_hash_entry **sym_hashes;
2721 bfd_vma *local_got_offsets;
2722 bfd_vma got_base;
2723 asection *sreloc;
2724 Elf_Internal_Rela *rel;
2725 Elf_Internal_Rela *relend;
2726 int num_relocs;
3348747a 2727 bfd_boolean is_vxworks_tls;
22b75d0a 2728
22b75d0a 2729 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2730 BFD_ASSERT (htab != NULL);
0ffa91dd 2731 symtab_hdr = &elf_symtab_hdr (input_bfd);
22b75d0a
DM		 2732 sym_hashes = elf_sym_hashes (input_bfd);
2733 local_got_offsets = elf_local_got_offsets (input_bfd);
2734
2735 if (elf_hash_table (info)->hgot == NULL)
2736 got_base = 0;
2737 else
2738 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2739
2740 sreloc = elf_section_data (input_section)->sreloc;
3348747a
NS		 2741 /* We have to handle relocations in vxworks .tls_vars sections
2742 specially, because the dynamic loader is 'weird'. */
2743 is_vxworks_tls = (htab->is_vxworks && info->shared
2744 && !strcmp (input_section->output_section->name,
2745 ".tls_vars"));
22b75d0a
DM		 2746
2747 rel = relocs;
2748 if (ABI_64_P (output_bfd))
2749 num_relocs = NUM_SHDR_ENTRIES (& elf_section_data (input_section)->rel_hdr);
2750 else
2751 num_relocs = input_section->reloc_count;
2752 relend = relocs + num_relocs;
2753 for (; rel < relend; rel++)
2754 {
2755 int r_type, tls_type;
2756 reloc_howto_type *howto;
2757 unsigned long r_symndx;
2758 struct elf_link_hash_entry *h;
2759 Elf_Internal_Sym *sym;
2760 asection *sec;
2761 bfd_vma relocation, off;
2762 bfd_reloc_status_type r;
2763 bfd_boolean is_plt = FALSE;
2764 bfd_boolean unresolved_reloc;
2765
2766 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2767 if (r_type == R_SPARC_GNU_VTINHERIT
2768 || r_type == R_SPARC_GNU_VTENTRY)
2769 continue;
2770
2771 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2772 {
2773 bfd_set_error (bfd_error_bad_value);
2774 return FALSE;
2775 }
2776 howto = _bfd_sparc_elf_howto_table + r_type;
2777
22b75d0a
DM		 2778 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2779 h = NULL;
2780 sym = NULL;
2781 sec = NULL;
2782 unresolved_reloc = FALSE;
2783 if (r_symndx < symtab_hdr->sh_info)
2784 {
2785 sym = local_syms + r_symndx;
2786 sec = local_sections[r_symndx];
2787 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
d0c9aeb3
DM		 2788
2789 if (!info->relocatable
2790 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2791 {
2792 /* Relocate against local STT_GNU_IFUNC symbol. */
2793 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
2794 rel, FALSE);
2795 if (h == NULL)
2796 abort ();
2797
2798 /* Set STT_GNU_IFUNC symbol value. */
2799 h->root.u.def.value = sym->st_value;
2800 h->root.u.def.section = sec;
2801 }
22b75d0a
DM		 2802 }
2803 else
2804 {
2805 bfd_boolean warned;
2806
2807 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2808 r_symndx, symtab_hdr, sym_hashes,
2809 h, sec, relocation,
2810 unresolved_reloc, warned);
2811 if (warned)
2812 {
2813 /* To avoid generating warning messages about truncated
2814 relocations, set the relocation's address to be the same as
2815 the start of this section. */
2816 if (input_section->output_section != NULL)
2817 relocation = input_section->output_section->vma;
2818 else
2819 relocation = 0;
2820 }
2821 }
2822
ab96bf03
AM		 2823 if (sec != NULL && elf_discarded_section (sec))
2824 {
2825 /* For relocs against symbols from removed linkonce
2826 sections, or sections discarded by a linker script, we
2827 just want the section contents zeroed. Avoid any
2828 special processing. */
2829 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
2830 rel->r_info = 0;
2831 rel->r_addend = 0;
2832 continue;
2833 }
2834
2835 if (info->relocatable)
2836 continue;
2837
d0c9aeb3
DM		 2838 if (h != NULL
2839 && h->type == STT_GNU_IFUNC
2840 && h->def_regular)
2841 {
2842 asection *plt_sec;
2843 const char *name;
2844
2845 if ((input_section->flags & SEC_ALLOC) == 0
2846 || h->plt.offset == (bfd_vma) -1)
2847 abort ();
2848
2849 plt_sec = htab->elf.splt;
2850 if (! plt_sec)
2851 plt_sec =htab->elf.iplt;
2852
2853 switch (r_type)
2854 {
00c50991
DM		 2855 case R_SPARC_GOTDATA_OP:
2856 continue;
2857
d0c9aeb3
DM		 2858 case R_SPARC_GOTDATA_OP_HIX22:
2859 case R_SPARC_GOTDATA_OP_LOX10:
00c50991
DM		 2860 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
2861 ? R_SPARC_GOT22
2862 : R_SPARC_GOT10);
2863 howto = _bfd_sparc_elf_howto_table + r_type;
2864 /* Fall through. */
2865
d0c9aeb3
DM		 2866 case R_SPARC_GOT10:
2867 case R_SPARC_GOT13:
2868 case R_SPARC_GOT22:
2869 if (htab->elf.sgot == NULL)
2870 abort ();
2871 off = h->got.offset;
2872 if (off == (bfd_vma) -1)
2873 abort();
2874 relocation = htab->elf.sgot->output_offset + off - got_base;
2875 goto do_relocation;
2876
2877 case R_SPARC_WPLT30:
2878 case R_SPARC_WDISP30:
2879 relocation = (plt_sec->output_section->vma
2880 + plt_sec->output_offset + h->plt.offset);
2881 goto do_relocation;
2882
2883 case R_SPARC_32:
2884 case R_SPARC_64:
2885 if (info->shared && h->non_got_ref)
2886 {
2887 Elf_Internal_Rela outrel;
2888 bfd_vma offset;
2889
2890 offset = _bfd_elf_section_offset (output_bfd, info,
2891 input_section,
2892 rel->r_offset);
2893 if (offset == (bfd_vma) -1
2894 || offset == (bfd_vma) -2)
2895 abort();
2896
2897 outrel.r_offset = (input_section->output_section->vma
2898 + input_section->output_offset
2899 + offset);
2900
2901 if (h->dynindx == -1
2902 || h->forced_local
2903 || info->executable)
2904 {
2905 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
2906 0, R_SPARC_IRELATIVE);
2907 outrel.r_addend = relocation + rel->r_addend;
2908 }
2909 else
2910 {
2911 if (h->dynindx == -1)
2912 abort();
2913 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
2914 outrel.r_addend = rel->r_addend;
2915 }
2916
2917 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
2918 continue;
2919 }
2920
2921 relocation = (plt_sec->output_section->vma
2922 + plt_sec->output_offset + h->plt.offset);
2923 goto do_relocation;
2924
2925 case R_SPARC_HI22:
2926 case R_SPARC_LO10:
2927 /* We should only see such relocs in static links. */
2928 if (info->shared)
2929 abort();
2930 relocation = (plt_sec->output_section->vma
2931 + plt_sec->output_offset + h->plt.offset);
2932 goto do_relocation;
2933
2934 default:
2935 if (h->root.root.string)
2936 name = h->root.root.string;
2937 else
2938 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
2939 NULL);
2940 (*_bfd_error_handler)
2941 (_("%B: relocation %s against STT_GNU_IFUNC "
2942 "symbol `%s' isn't handled by %s"), input_bfd,
2943 _bfd_sparc_elf_howto_table[r_type].name,
2944 name, __FUNCTION__);
2945 bfd_set_error (bfd_error_bad_value);
2946 return FALSE;
2947 }
2948 }
2949
22b75d0a
DM		 2950 switch (r_type)
2951 {
739f7f82
DM		 2952 case R_SPARC_GOTDATA_OP_HIX22:
2953 case R_SPARC_GOTDATA_OP_LOX10:
00c50991
DM		 2954 if (SYMBOL_REFERENCES_LOCAL (info, h))
2955 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
2956 ? R_SPARC_GOTDATA_HIX22
2957 : R_SPARC_GOTDATA_LOX10);
739f7f82 2958 else
00c50991
DM		 2959 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
2960 ? R_SPARC_GOT22
2961 : R_SPARC_GOT10);
2962 howto = _bfd_sparc_elf_howto_table + r_type;
2963 break;
2964
2965 case R_SPARC_GOTDATA_OP:
2966 if (SYMBOL_REFERENCES_LOCAL (info, h))
2967 {
2968 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
2969
2970 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
2971 relocation = 0x80000000 | (insn & 0x3e07c01f);
2972 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
2973 }
2974 continue;
2975 }
2976
2977 switch (r_type)
2978 {
2979 case R_SPARC_GOTDATA_HIX22:
2980 case R_SPARC_GOTDATA_LOX10:
2981 relocation = gdopoff (info, relocation);
2982 break;
739f7f82 2983
22b75d0a
DM		 2984 case R_SPARC_GOT10:
2985 case R_SPARC_GOT13:
2986 case R_SPARC_GOT22:
2987 /* Relocation is to the entry for this symbol in the global
2988 offset table. */
72fbc6e5 2989 if (htab->elf.sgot == NULL)
22b75d0a
DM		 2990 abort ();
2991
2992 if (h != NULL)
2993 {
2994 bfd_boolean dyn;
2995
2996 off = h->got.offset;
2997 BFD_ASSERT (off != (bfd_vma) -1);
2998 dyn = elf_hash_table (info)->dynamic_sections_created;
2999
3000 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
3001 || (info->shared
72fbc6e5 3002 && SYMBOL_REFERENCES_LOCAL (info, h)))
22b75d0a
DM		 3003 {
3004 /* This is actually a static link, or it is a
3005 -Bsymbolic link and the symbol is defined
3006 locally, or the symbol was forced to be local
3007 because of a version file. We must initialize
3008 this entry in the global offset table. Since the
3009 offset must always be a multiple of 8 for 64-bit
3010 and 4 for 32-bit, we use the least significant bit
3011 to record whether we have initialized it already.
3012
3013 When doing a dynamic link, we create a .rela.got
3014 relocation entry to initialize the value. This
3015 is done in the finish_dynamic_symbol routine. */
3016 if ((off & 1) != 0)
3017 off &= ~1;
3018 else
3019 {
3020 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
72fbc6e5 3021 htab->elf.sgot->contents + off);
22b75d0a
DM		 3022 h->got.offset |= 1;
3023 }
3024 }
3025 else
3026 unresolved_reloc = FALSE;
3027 }
3028 else
3029 {
3030 BFD_ASSERT (local_got_offsets != NULL
3031 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3032
3033 off = local_got_offsets[r_symndx];
3034
3035 /* The offset must always be a multiple of 8 on 64-bit and
3036 4 on 32-bit. We use the least significant bit to record
3037 whether we have already processed this entry. */
3038 if ((off & 1) != 0)
3039 off &= ~1;
3040 else
3041 {
3042
3043 if (info->shared)
3044 {
3045 asection *s;
3046 Elf_Internal_Rela outrel;
3047
3048 /* We need to generate a R_SPARC_RELATIVE reloc
3049 for the dynamic linker. */
72fbc6e5 3050 s = htab->elf.srelgot;
22b75d0a
DM		 3051 BFD_ASSERT (s != NULL);
3052
72fbc6e5
DM		 3053 outrel.r_offset = (htab->elf.sgot->output_section->vma
3054 + htab->elf.sgot->output_offset
22b75d0a
DM		 3055 + off);
3056 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3057 0, R_SPARC_RELATIVE);
3058 outrel.r_addend = relocation;
3059 relocation = 0;
39817122 3060 sparc_elf_append_rela (output_bfd, s, &outrel);
22b75d0a
DM		 3061 }
3062
3063 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
72fbc6e5 3064 htab->elf.sgot->contents + off);
22b75d0a
DM		 3065 local_got_offsets[r_symndx] |= 1;
3066 }
3067 }
72fbc6e5 3068 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3069 break;
3070
3071 case R_SPARC_PLT32:
3072 case R_SPARC_PLT64:
3073 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3074 {
3075 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3076 goto r_sparc_plt32;
3077 }
3078 /* Fall through. */
3079
3080 case R_SPARC_WPLT30:
3081 case R_SPARC_HIPLT22:
3082 case R_SPARC_LOPLT10:
3083 case R_SPARC_PCPLT32:
3084 case R_SPARC_PCPLT22:
3085 case R_SPARC_PCPLT10:
3086 r_sparc_wplt30:
3087 /* Relocation is to the entry for this symbol in the
3088 procedure linkage table. */
3089
3090 if (! ABI_64_P (output_bfd))
3091 {
3092 /* The Solaris native assembler will generate a WPLT30 reloc
3093 for a local symbol if you assemble a call from one
3094 section to another when using -K pic. We treat it as
3095 WDISP30. */
3096 if (h == NULL)
3097 break;
3098 }
af1fb11f
NC		 3099 /* PR 7027: We need similar behaviour for 64-bit binaries. */
3100 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3101 break;
22b75d0a
DM		 3102 else
3103 {
3104 BFD_ASSERT (h != NULL);
3105 }
3106
72fbc6e5 3107 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
22b75d0a
DM		 3108 {
3109 /* We didn't make a PLT entry for this symbol. This
3110 happens when statically linking PIC code, or when
3111 using -Bsymbolic. */
3112 break;
3113 }
3114
72fbc6e5
DM		 3115 relocation = (htab->elf.splt->output_section->vma
3116 + htab->elf.splt->output_offset
22b75d0a
DM		 3117 + h->plt.offset);
3118 unresolved_reloc = FALSE;
3119 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3120 {
3121 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3122 is_plt = TRUE;
3123 goto r_sparc_plt32;
3124 }
3125 break;
3126
3127 case R_SPARC_PC10:
3128 case R_SPARC_PC22:
3129 case R_SPARC_PC_HH22:
3130 case R_SPARC_PC_HM10:
3131 case R_SPARC_PC_LM22:
3132 if (h != NULL
3133 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3134 break;
3135 /* Fall through. */
3136 case R_SPARC_DISP8:
3137 case R_SPARC_DISP16:
3138 case R_SPARC_DISP32:
3139 case R_SPARC_DISP64:
3140 case R_SPARC_WDISP30:
3141 case R_SPARC_WDISP22:
3142 case R_SPARC_WDISP19:
3143 case R_SPARC_WDISP16:
3144 case R_SPARC_8:
3145 case R_SPARC_16:
3146 case R_SPARC_32:
3147 case R_SPARC_HI22:
3148 case R_SPARC_22:
3149 case R_SPARC_13:
3150 case R_SPARC_LO10:
3151 case R_SPARC_UA16:
3152 case R_SPARC_UA32:
3153 case R_SPARC_10:
3154 case R_SPARC_11:
3155 case R_SPARC_64:
3156 case R_SPARC_OLO10:
3157 case R_SPARC_HH22:
3158 case R_SPARC_HM10:
3159 case R_SPARC_LM22:
3160 case R_SPARC_7:
3161 case R_SPARC_5:
3162 case R_SPARC_6:
3163 case R_SPARC_HIX22:
3164 case R_SPARC_LOX10:
3165 case R_SPARC_H44:
3166 case R_SPARC_M44:
3167 case R_SPARC_L44:
3168 case R_SPARC_UA64:
3169 r_sparc_plt32:
3348747a
NS		 3170 if ((input_section->flags & SEC_ALLOC) == 0
3171 || is_vxworks_tls)
22b75d0a
DM		 3172 break;
3173
3174 if ((info->shared
3175 && (h == NULL
3176 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3177 || h->root.type != bfd_link_hash_undefweak)
3178 && (! howto->pc_relative
72fbc6e5 3179 || !SYMBOL_CALLS_LOCAL (info, h)))
22b75d0a
DM		 3180 || (!info->shared
3181 && h != NULL
3182 && h->dynindx != -1
3183 && !h->non_got_ref
3184 && ((h->def_dynamic
3185 && !h->def_regular)
3186 || h->root.type == bfd_link_hash_undefweak
3187 || h->root.type == bfd_link_hash_undefined)))
3188 {
3189 Elf_Internal_Rela outrel;
3190 bfd_boolean skip, relocate = FALSE;
3191
3192 /* When generating a shared object, these relocations
3193 are copied into the output file to be resolved at run
3194 time. */
3195
3196 BFD_ASSERT (sreloc != NULL);
3197
3198 skip = FALSE;
3199
3200 outrel.r_offset =
3201 _bfd_elf_section_offset (output_bfd, info, input_section,
3202 rel->r_offset);
3203 if (outrel.r_offset == (bfd_vma) -1)
3204 skip = TRUE;
3205 else if (outrel.r_offset == (bfd_vma) -2)
3206 skip = TRUE, relocate = TRUE;
3207 outrel.r_offset += (input_section->output_section->vma
3208 + input_section->output_offset);
3209
3210 /* Optimize unaligned reloc usage now that we know where
3211 it finally resides. */
3212 switch (r_type)
3213 {
3214 case R_SPARC_16:
3215 if (outrel.r_offset & 1)
3216 r_type = R_SPARC_UA16;
3217 break;
3218 case R_SPARC_UA16:
3219 if (!(outrel.r_offset & 1))
3220 r_type = R_SPARC_16;
3221 break;
3222 case R_SPARC_32:
3223 if (outrel.r_offset & 3)
3224 r_type = R_SPARC_UA32;
3225 break;
3226 case R_SPARC_UA32:
3227 if (!(outrel.r_offset & 3))
3228 r_type = R_SPARC_32;
3229 break;
3230 case R_SPARC_64:
3231 if (outrel.r_offset & 7)
3232 r_type = R_SPARC_UA64;
3233 break;
3234 case R_SPARC_UA64:
3235 if (!(outrel.r_offset & 7))
3236 r_type = R_SPARC_64;
3237 break;
3238 case R_SPARC_DISP8:
3239 case R_SPARC_DISP16:
3240 case R_SPARC_DISP32:
3241 case R_SPARC_DISP64:
3242 /* If the symbol is not dynamic, we should not keep
3243 a dynamic relocation. But an .rela.* slot has been
3244 allocated for it, output R_SPARC_NONE.
3245 FIXME: Add code tracking needed dynamic relocs as
3246 e.g. i386 has. */
3247 if (h->dynindx == -1)
3248 skip = TRUE, relocate = TRUE;
3249 break;
3250 }
3251
3252 if (skip)
3253 memset (&outrel, 0, sizeof outrel);
3254 /* h->dynindx may be -1 if the symbol was marked to
3255 become local. */
72fbc6e5
DM		 3256 else if (h != NULL &&
3257 h->dynindx != -1
3258 && (! is_plt
3259 || !info->shared
3260 || !SYMBOLIC_BIND (info, h)
22b75d0a
DM		 3261 || !h->def_regular))
3262 {
3263 BFD_ASSERT (h->dynindx != -1);
3264 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3265 outrel.r_addend = rel->r_addend;
3266 }
3267 else
3268 {
3269 if (r_type == R_SPARC_32 || r_type == R_SPARC_64)
3270 {
3271 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3272 0, R_SPARC_RELATIVE);
3273 outrel.r_addend = relocation + rel->r_addend;
3274 }
3275 else
3276 {
3277 long indx;
3278
74541ad4
AM		 3279 outrel.r_addend = relocation + rel->r_addend;
3280
22b75d0a 3281 if (is_plt)
72fbc6e5 3282 sec = htab->elf.splt;
22b75d0a
DM		 3283
3284 if (bfd_is_abs_section (sec))
3285 indx = 0;
3286 else if (sec == NULL || sec->owner == NULL)
3287 {
3288 bfd_set_error (bfd_error_bad_value);
3289 return FALSE;
3290 }
3291 else
3292 {
3293 asection *osec;
3294
74541ad4
AM		 3295 /* We are turning this relocation into one
3296 against a section symbol. It would be
3297 proper to subtract the symbol's value,
3298 osec->vma, from the emitted reloc addend,
3299 but ld.so expects buggy relocs. */
22b75d0a
DM		 3300 osec = sec->output_section;
3301 indx = elf_section_data (osec)->dynindx;
3302
74541ad4
AM		 3303 if (indx == 0)
3304 {
3305 osec = htab->elf.text_index_section;
3306 indx = elf_section_data (osec)->dynindx;
3307 }
3308
22b75d0a
DM		 3309 /* FIXME: we really should be able to link non-pic
3310 shared libraries. */
3311 if (indx == 0)
3312 {
3313 BFD_FAIL ();
3314 (*_bfd_error_handler)
3315 (_("%B: probably compiled without -fPIC?"),
3316 input_bfd);
3317 bfd_set_error (bfd_error_bad_value);
3318 return FALSE;
3319 }
3320 }
3321
74541ad4
AM		 3322 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3323 r_type);
22b75d0a
DM		 3324 }
3325 }
3326
39817122 3327 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3328
3329 /* This reloc will be computed at runtime, so there's no
3330 need to do anything now. */
3331 if (! relocate)
3332 continue;
3333 }
3334 break;
3335
3336 case R_SPARC_TLS_GD_HI22:
3337 if (! ABI_64_P (input_bfd)
3338 && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
3339 {
3340 /* R_SPARC_REV32 used the same reloc number as
3341 R_SPARC_TLS_GD_HI22. */
3342 r_type = R_SPARC_REV32;
3343 break;
3344 }
3345 /* Fall through */
3346
3347 case R_SPARC_TLS_GD_LO10:
3348 case R_SPARC_TLS_IE_HI22:
3349 case R_SPARC_TLS_IE_LO10:
3350 r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
3351 tls_type = GOT_UNKNOWN;
3352 if (h == NULL && local_got_offsets)
3353 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3354 else if (h != NULL)
3355 {
3356 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3357 if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE)
3358 switch (SPARC_ELF_R_TYPE (rel->r_info))
3359 {
3360 case R_SPARC_TLS_GD_HI22:
3361 case R_SPARC_TLS_IE_HI22:
3362 r_type = R_SPARC_TLS_LE_HIX22;
3363 break;
3364 default:
3365 r_type = R_SPARC_TLS_LE_LOX10;
3366 break;
3367 }
3368 }
3369 if (tls_type == GOT_TLS_IE)
3370 switch (r_type)
3371 {
3372 case R_SPARC_TLS_GD_HI22:
3373 r_type = R_SPARC_TLS_IE_HI22;
3374 break;
3375 case R_SPARC_TLS_GD_LO10:
3376 r_type = R_SPARC_TLS_IE_LO10;
3377 break;
3378 }
3379
3380 if (r_type == R_SPARC_TLS_LE_HIX22)
3381 {
3382 relocation = tpoff (info, relocation);
3383 break;
3384 }
3385 if (r_type == R_SPARC_TLS_LE_LOX10)
3386 {
3387 /* Change add into xor. */
3388 relocation = tpoff (info, relocation);
3389 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3390 contents + rel->r_offset)
3391 | 0x80182000), contents + rel->r_offset);
3392 break;
3393 }
3394
3395 if (h != NULL)
3396 {
3397 off = h->got.offset;
3398 h->got.offset |= 1;
3399 }
3400 else
3401 {
3402 BFD_ASSERT (local_got_offsets != NULL);
3403 off = local_got_offsets[r_symndx];
3404 local_got_offsets[r_symndx] |= 1;
3405 }
3406
3407 r_sparc_tlsldm:
72fbc6e5 3408 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3409 abort ();
3410
3411 if ((off & 1) != 0)
3412 off &= ~1;
3413 else
3414 {
3415 Elf_Internal_Rela outrel;
3416 int dr_type, indx;
3417
72fbc6e5 3418 if (htab->elf.srelgot == NULL)
22b75d0a
DM		 3419 abort ();
3420
72fbc6e5
DM		 3421 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3422 htab->elf.sgot->contents + off);
3423 outrel.r_offset = (htab->elf.sgot->output_section->vma
3424 + htab->elf.sgot->output_offset + off);
22b75d0a
DM		 3425 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3426 if (r_type == R_SPARC_TLS_IE_HI22
3427 || r_type == R_SPARC_TLS_IE_LO10)
3428 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3429 else
3430 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3431 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3432 outrel.r_addend = relocation - dtpoff_base (info);
3433 else
3434 outrel.r_addend = 0;
3435 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
72fbc6e5 3436 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
22b75d0a
DM		 3437
3438 if (r_type == R_SPARC_TLS_GD_HI22
3439 || r_type == R_SPARC_TLS_GD_LO10)
3440 {
3441 if (indx == 0)
3442 {
3443 BFD_ASSERT (! unresolved_reloc);
3444 SPARC_ELF_PUT_WORD (htab, output_bfd,
3445 relocation - dtpoff_base (info),
72fbc6e5 3446 (htab->elf.sgot->contents + off
22b75d0a
DM		 3447 + SPARC_ELF_WORD_BYTES (htab)));
3448 }
3449 else
3450 {
3451 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3452 (htab->elf.sgot->contents + off
22b75d0a
DM		 3453 + SPARC_ELF_WORD_BYTES (htab)));
3454 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3455 SPARC_ELF_DTPOFF_RELOC (htab));
3456 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
72fbc6e5 3457 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
39817122 3458 &outrel);
22b75d0a
DM		 3459 }
3460 }
3461 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3462 {
3463 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3464 (htab->elf.sgot->contents + off
22b75d0a
DM		 3465 + SPARC_ELF_WORD_BYTES (htab)));
3466 }
3467 }
3468
3469 if (off >= (bfd_vma) -2)
3470 abort ();
3471
72fbc6e5 3472 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3473 unresolved_reloc = FALSE;
3474 howto = _bfd_sparc_elf_howto_table + r_type;
3475 break;
3476
3477 case R_SPARC_TLS_LDM_HI22:
3478 case R_SPARC_TLS_LDM_LO10:
3479 if (! info->shared)
3480 {
3481 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3482 continue;
3483 }
3484 off = htab->tls_ldm_got.offset;
3485 htab->tls_ldm_got.offset |= 1;
3486 goto r_sparc_tlsldm;
3487
3488 case R_SPARC_TLS_LDO_HIX22:
3489 case R_SPARC_TLS_LDO_LOX10:
3490 if (info->shared)
3491 {
3492 relocation -= dtpoff_base (info);
3493 break;
3494 }
3495
3496 r_type = (r_type == R_SPARC_TLS_LDO_HIX22
3497 ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
3498 /* Fall through. */
3499
3500 case R_SPARC_TLS_LE_HIX22:
3501 case R_SPARC_TLS_LE_LOX10:
3502 if (info->shared)
3503 {
3504 Elf_Internal_Rela outrel;
3505 bfd_boolean skip, relocate = FALSE;
3506
3507 BFD_ASSERT (sreloc != NULL);
3508 skip = FALSE;
3509 outrel.r_offset =
3510 _bfd_elf_section_offset (output_bfd, info, input_section,
3511 rel->r_offset);
3512 if (outrel.r_offset == (bfd_vma) -1)
3513 skip = TRUE;
3514 else if (outrel.r_offset == (bfd_vma) -2)
3515 skip = TRUE, relocate = TRUE;
3516 outrel.r_offset += (input_section->output_section->vma
3517 + input_section->output_offset);
3518 if (skip)
3519 memset (&outrel, 0, sizeof outrel);
3520 else
3521 {
3522 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3523 outrel.r_addend = relocation - dtpoff_base (info)
3524 + rel->r_addend;
3525 }
3526
39817122 3527 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3528 continue;
3529 }
3530 relocation = tpoff (info, relocation);
3531 break;
3532
3533 case R_SPARC_TLS_LDM_CALL:
3534 if (! info->shared)
3535 {
3536 /* mov %g0, %o0 */
3537 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3538 continue;
3539 }
3540 /* Fall through */
3541
3542 case R_SPARC_TLS_GD_CALL:
3543 tls_type = GOT_UNKNOWN;
3544 if (h == NULL && local_got_offsets)
3545 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3546 else if (h != NULL)
3547 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3548 if (! info->shared
3549 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3550 {
3551 bfd_vma insn;
3552
3553 if (!info->shared && (h == NULL || h->dynindx == -1))
3554 {
3555 /* GD -> LE */
3556 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3557 continue;
3558 }
3559
3560 /* GD -> IE */
3561 if (rel + 1 < relend
3562 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3563 && rel[1].r_offset == rel->r_offset + 4
3564 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3565 && (((insn = bfd_get_32 (input_bfd,
3566 contents + rel[1].r_offset))
3567 >> 25) & 0x1f) == 8)
3568 {
3569 /* We have
3570 call __tls_get_addr, %tgd_call(foo)
3571 add %reg1, %reg2, %o0, %tgd_add(foo)
3572 and change it into IE:
3573 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3574 add %g7, %o0, %o0, %tie_add(foo).
3575 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3576 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3577 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3578 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3579 contents + rel->r_offset);
3580 bfd_put_32 (output_bfd, 0x9001c008,
3581 contents + rel->r_offset + 4);
3582 rel++;
3583 continue;
3584 }
3585
3586 bfd_put_32 (output_bfd, 0x9001c008, contents + rel->r_offset);
3587 continue;
3588 }
3589
3590 h = (struct elf_link_hash_entry *)
3591 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3592 FALSE, TRUE);
3593 BFD_ASSERT (h != NULL);
3594 r_type = R_SPARC_WPLT30;
3595 howto = _bfd_sparc_elf_howto_table + r_type;
3596 goto r_sparc_wplt30;
3597
3598 case R_SPARC_TLS_GD_ADD:
3599 tls_type = GOT_UNKNOWN;
3600 if (h == NULL && local_got_offsets)
3601 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3602 else if (h != NULL)
3603 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3604 if (! info->shared || tls_type == GOT_TLS_IE)
3605 {
3606 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3607 changed into IE:
3608 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3609 or LE:
3610 add %g7, %reg2, %reg3. */
3611 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3612 if ((h != NULL && h->dynindx != -1) || info->shared)
3613 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
3614 else
3615 relocation = (insn & ~0x7c000) | 0x1c000;
3616 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3617 }
3618 continue;
3619
3620 case R_SPARC_TLS_LDM_ADD:
3621 if (! info->shared)
3622 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3623 continue;
3624
3625 case R_SPARC_TLS_LDO_ADD:
3626 if (! info->shared)
3627 {
3628 /* Change rs1 into %g7. */
3629 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3630 insn = (insn & ~0x7c000) | 0x1c000;
3631 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3632 }
3633 continue;
3634
3635 case R_SPARC_TLS_IE_LD:
3636 case R_SPARC_TLS_IE_LDX:
3637 if (! info->shared && (h == NULL || h->dynindx == -1))
3638 {
3639 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3640 int rs2 = insn & 0x1f;
3641 int rd = (insn >> 25) & 0x1f;
3642
3643 if (rs2 == rd)
3644 relocation = SPARC_NOP;
3645 else
3646 relocation = 0x80100000 | (insn & 0x3e00001f);
3647 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3648 }
3649 continue;
3650
3651 case R_SPARC_TLS_IE_ADD:
3652 /* Totally useless relocation. */
3653 continue;
3654
3655 case R_SPARC_TLS_DTPOFF32:
3656 case R_SPARC_TLS_DTPOFF64:
3657 relocation -= dtpoff_base (info);
3658 break;
3659
3660 default:
3661 break;
3662 }
3663
3664 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3665 because such sections are not SEC_ALLOC and thus ld.so will
3666 not process them. */
3667 if (unresolved_reloc
3668 && !((input_section->flags & SEC_DEBUGGING) != 0
3669 && h->def_dynamic))
3670 (*_bfd_error_handler)
843fe662 3671 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
22b75d0a
DM		 3672 input_bfd,
3673 input_section,
3674 (long) rel->r_offset,
843fe662 3675 howto->name,
22b75d0a
DM		 3676 h->root.root.string);
3677
3678 r = bfd_reloc_continue;
3679 if (r_type == R_SPARC_OLO10)
3680 {
3681 bfd_vma x;
3682
3683 if (! ABI_64_P (output_bfd))
3684 abort ();
3685
3686 relocation += rel->r_addend;
3687 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3688
3689 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3690 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3691 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3692
3693 r = bfd_check_overflow (howto->complain_on_overflow,
3694 howto->bitsize, howto->rightshift,
3695 bfd_arch_bits_per_address (input_bfd),
3696 relocation);
3697 }
3698 else if (r_type == R_SPARC_WDISP16)
3699 {
3700 bfd_vma x;
3701
3702 relocation += rel->r_addend;
3703 relocation -= (input_section->output_section->vma
3704 + input_section->output_offset);
3705 relocation -= rel->r_offset;
3706
3707 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3708 x |= ((((relocation >> 2) & 0xc000) << 6)
3709 | ((relocation >> 2) & 0x3fff));
3710 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3711
3712 r = bfd_check_overflow (howto->complain_on_overflow,
3713 howto->bitsize, howto->rightshift,
3714 bfd_arch_bits_per_address (input_bfd),
3715 relocation);
3716 }
3717 else if (r_type == R_SPARC_REV32)
3718 {
3719 bfd_vma x;
3720
3721 relocation = relocation + rel->r_addend;
3722
3723 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3724 x = x + relocation;
3725 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
3726 r = bfd_reloc_ok;
3727 }
3728 else if (r_type == R_SPARC_TLS_LDO_HIX22
3729 || r_type == R_SPARC_TLS_LE_HIX22)
3730 {
3731 bfd_vma x;
3732
3733 relocation += rel->r_addend;
3734 if (r_type == R_SPARC_TLS_LE_HIX22)
3735 relocation ^= MINUS_ONE;
3736
3737 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3738 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3739 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3740 r = bfd_reloc_ok;
3741 }
3742 else if (r_type == R_SPARC_TLS_LDO_LOX10
3743 || r_type == R_SPARC_TLS_LE_LOX10)
3744 {
3745 bfd_vma x;
3746
3747 relocation += rel->r_addend;
3748 relocation &= 0x3ff;
3749 if (r_type == R_SPARC_TLS_LE_LOX10)
3750 relocation |= 0x1c00;
3751
3752 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3753 x = (x & ~(bfd_vma) 0x1fff) | relocation;
3754 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3755
3756 r = bfd_reloc_ok;
3757 }
00c50991
DM		 3758 else if (r_type == R_SPARC_HIX22
3759 || r_type == R_SPARC_GOTDATA_HIX22)
22b75d0a
DM		 3760 {
3761 bfd_vma x;
3762
3763 relocation += rel->r_addend;
00c50991
DM		 3764 if (r_type == R_SPARC_HIX22
3765 || (bfd_signed_vma) relocation < 0)
3766 relocation = relocation ^ MINUS_ONE;
22b75d0a
DM		 3767
3768 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3769 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3770 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3771
3772 r = bfd_check_overflow (howto->complain_on_overflow,
3773 howto->bitsize, howto->rightshift,
3774 bfd_arch_bits_per_address (input_bfd),
3775 relocation);
3776 }
00c50991
DM		 3777 else if (r_type == R_SPARC_LOX10
3778 || r_type == R_SPARC_GOTDATA_LOX10)
22b75d0a
DM		 3779 {
3780 bfd_vma x;
3781
3782 relocation += rel->r_addend;
00c50991
DM		 3783 if (r_type == R_SPARC_LOX10
3784 || (bfd_signed_vma) relocation < 0)
3785 relocation = (relocation & 0x3ff) | 0x1c00;
3786 else
3787 relocation = (relocation & 0x3ff);
22b75d0a
DM		 3788
3789 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3790 x = (x & ~(bfd_vma) 0x1fff) | relocation;
3791 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3792
3793 r = bfd_reloc_ok;
3794 }
3795 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
3796 && sec_do_relax (input_section)
3797 && rel->r_offset + 4 < input_section->size)
3798 {
3799#define G0 0
3800#define O7 15
3801#define XCC (2 << 20)
3802#define COND(x) (((x)&0xf)<<25)
3803#define CONDA COND(0x8)
3804#define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
3805#define INSN_BA (F2(0,2) | CONDA)
3806#define INSN_OR F3(2, 0x2, 0)
3807#define INSN_NOP F2(0,4)
3808
3809 bfd_vma x, y;
3810
3811 /* If the instruction is a call with either:
3812 restore
3813 arithmetic instruction with rd == %o7
3814 where rs1 != %o7 and rs2 if it is register != %o7
3815 then we can optimize if the call destination is near
3816 by changing the call into a branch always. */
3817 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3818 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3819 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
3820 {
3821 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
3822 || ((y & OP3(0x28)) == 0 /* arithmetic */
3823 && (y & RD(~0)) == RD(O7)))
3824 && (y & RS1(~0)) != RS1(O7)
3825 && ((y & F3I(~0))
3826 || (y & RS2(~0)) != RS2(O7)))
3827 {
3828 bfd_vma reloc;
3829
3830 reloc = relocation + rel->r_addend - rel->r_offset;
3831 reloc -= (input_section->output_section->vma
3832 + input_section->output_offset);
3833
3834 /* Ensure the branch fits into simm22. */
3835 if ((reloc & 3) == 0
3836 && ((reloc & ~(bfd_vma)0x7fffff) == 0
3837 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
3838 {
3839 reloc >>= 2;
3840
3841 /* Check whether it fits into simm19. */
3842 if (((reloc & 0x3c0000) == 0
3843 || (reloc & 0x3c0000) == 0x3c0000)
3844 && (ABI_64_P (output_bfd)
3845 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
3846 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
3847 else
3848 x = INSN_BA | (reloc & 0x3fffff); /* ba */
3849 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3850 r = bfd_reloc_ok;
3851 if (rel->r_offset >= 4
3852 && (y & (0xffffffff ^ RS1(~0)))
3853 == (INSN_OR | RD(O7) | RS2(G0)))
3854 {
3855 bfd_vma z;
3856 unsigned int reg;
3857
3858 z = bfd_get_32 (input_bfd,
3859 contents + rel->r_offset - 4);
3860 if ((z & (0xffffffff ^ RD(~0)))
3861 != (INSN_OR | RS1(O7) | RS2(G0)))
3862 break;
3863
3864 /* The sequence was
3865 or %o7, %g0, %rN
3866 call foo
3867 or %rN, %g0, %o7
3868
3869 If call foo was replaced with ba, replace
3870 or %rN, %g0, %o7 with nop. */
3871
3872 reg = (y & RS1(~0)) >> 14;
3873 if (reg != ((z & RD(~0)) >> 25)
3874 || reg == G0 || reg == O7)
3875 break;
3876
3877 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
3878 contents + rel->r_offset + 4);
3879 }
3880
3881 }
3882 }
3883 }
3884 }
3885
3886 if (r == bfd_reloc_continue)
d0c9aeb3
DM		 3887 {
3888do_relocation:
3889 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3890 contents, rel->r_offset,
3891 relocation, rel->r_addend);
3892 }
22b75d0a
DM		 3893 if (r != bfd_reloc_ok)
3894 {
3895 switch (r)
3896 {
3897 default:
3898 case bfd_reloc_outofrange:
3899 abort ();
3900 case bfd_reloc_overflow:
3901 {
3902 const char *name;
3903
dc669dc8
EB		 3904 /* The Solaris native linker silently disregards overflows.
3905 We don't, but this breaks stabs debugging info, whose
3906 relocations are only 32-bits wide. Ignore overflows in
3907 this case and also for discarded entries. */
3908 if ((r_type == R_SPARC_32 || r_type == R_SPARC_DISP32)
3909 && (((input_section->flags & SEC_DEBUGGING) != 0
3910 && strcmp (bfd_section_name (input_bfd,
3911 input_section),
3912 ".stab") == 0)
3913 || _bfd_elf_section_offset (output_bfd, info,
3914 input_section,
3915 rel->r_offset)
3916 == (bfd_vma)-1))
3917 break;
3918
22b75d0a 3919 if (h != NULL)
bb29dfea
EB		 3920 {
3921 /* Assume this is a call protected by other code that
3922 detect the symbol is undefined. If this is the case,
3923 we can safely ignore the overflow. If not, the
3924 program is hosed anyway, and a little warning isn't
3925 going to help. */
3926 if (h->root.type == bfd_link_hash_undefweak
3927 && howto->pc_relative)
3928 break;
3929
3930 name = NULL;
3931 }
22b75d0a
DM		 3932 else
3933 {
3934 name = bfd_elf_string_from_elf_section (input_bfd,
3935 symtab_hdr->sh_link,
3936 sym->st_name);
3937 if (name == NULL)
3938 return FALSE;
3939 if (*name == '\0')
3940 name = bfd_section_name (input_bfd, sec);
3941 }
3942 if (! ((*info->callbacks->reloc_overflow)
3943 (info, (h ? &h->root : NULL), name, howto->name,
3944 (bfd_vma) 0, input_bfd, input_section,
3945 rel->r_offset)))
3946 return FALSE;
3947 }
3948 break;
3949 }
3950 }
3951 }
3952
3953 return TRUE;
3954}
3955
910600e9
RS		 3956/* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
3957 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
3958 is the offset of the associated .got.plt entry from
3959 _GLOBAL_OFFSET_TABLE_. */
3960
3961static void
3962sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
3963 bfd_vma plt_offset, bfd_vma plt_index,
3964 bfd_vma got_offset)
3965{
3966 bfd_vma got_base;
3967 const bfd_vma *plt_entry;
3968 struct _bfd_sparc_elf_link_hash_table *htab;
3969 bfd_byte *loc;
3970 Elf_Internal_Rela rela;
3971
3972 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 3973 BFD_ASSERT (htab != NULL);
3974
910600e9
RS		 3975 if (info->shared)
3976 {
3977 plt_entry = sparc_vxworks_shared_plt_entry;
3978 got_base = 0;
3979 }
3980 else
3981 {
3982 plt_entry = sparc_vxworks_exec_plt_entry;
3983 got_base = (htab->elf.hgot->root.u.def.value
3984 + htab->elf.hgot->root.u.def.section->output_offset
3985 + htab->elf.hgot->root.u.def.section->output_section->vma);
3986 }
3987
3988 /* Fill in the entry in the procedure linkage table. */
3989 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
72fbc6e5 3990 htab->elf.splt->contents + plt_offset);
910600e9 3991 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
72fbc6e5 3992 htab->elf.splt->contents + plt_offset + 4);
910600e9 3993 bfd_put_32 (output_bfd, plt_entry[2],
72fbc6e5 3994 htab->elf.splt->contents + plt_offset + 8);
910600e9 3995 bfd_put_32 (output_bfd, plt_entry[3],
72fbc6e5 3996 htab->elf.splt->contents + plt_offset + 12);
910600e9 3997 bfd_put_32 (output_bfd, plt_entry[4],
72fbc6e5 3998 htab->elf.splt->contents + plt_offset + 16);
910600e9 3999 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
72fbc6e5 4000 htab->elf.splt->contents + plt_offset + 20);
910600e9
RS		 4001 /* PC-relative displacement for a branch to the start of
4002 the PLT section. */
4003 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4004 & 0x003fffff),
72fbc6e5 4005 htab->elf.splt->contents + plt_offset + 24);
910600e9 4006 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
72fbc6e5 4007 htab->elf.splt->contents + plt_offset + 28);
910600e9
RS		 4008
4009 /* Fill in the .got.plt entry, pointing initially at the
4010 second half of the PLT entry. */
72fbc6e5 4011 BFD_ASSERT (htab->elf.sgotplt != NULL);
910600e9 4012 bfd_put_32 (output_bfd,
72fbc6e5
DM		 4013 htab->elf.splt->output_section->vma
4014 + htab->elf.splt->output_offset
910600e9 4015 + plt_offset + 20,
72fbc6e5 4016 htab->elf.sgotplt->contents + got_offset);
910600e9
RS		 4017
4018 /* Add relocations to .rela.plt.unloaded. */
4019 if (!info->shared)
4020 {
4021 loc = (htab->srelplt2->contents
4022 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4023
4024 /* Relocate the initial sethi. */
72fbc6e5
DM		 4025 rela.r_offset = (htab->elf.splt->output_section->vma
4026 + htab->elf.splt->output_offset
910600e9
RS		 4027 + plt_offset);
4028 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4029 rela.r_addend = got_offset;
4030 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4031 loc += sizeof (Elf32_External_Rela);
4032
4033 /* Likewise the following or. */
4034 rela.r_offset += 4;
4035 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4036 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4037 loc += sizeof (Elf32_External_Rela);
4038
4039 /* Relocate the .got.plt entry. */
72fbc6e5
DM		 4040 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4041 + htab->elf.sgotplt->output_offset
910600e9
RS		 4042 + got_offset);
4043 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4044 rela.r_addend = plt_offset + 20;
4045 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4046 }
4047}
4048
22b75d0a
DM		 4049/* Finish up dynamic symbol handling. We set the contents of various
4050 dynamic sections here. */
4051
4052bfd_boolean
4053_bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4054 struct bfd_link_info *info,
4055 struct elf_link_hash_entry *h,
4056 Elf_Internal_Sym *sym)
4057{
22b75d0a 4058 struct _bfd_sparc_elf_link_hash_table *htab;
39817122 4059 const struct elf_backend_data *bed;
22b75d0a
DM		 4060
4061 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4062 BFD_ASSERT (htab != NULL);
39817122 4063 bed = get_elf_backend_data (output_bfd);
22b75d0a
DM		 4064
4065 if (h->plt.offset != (bfd_vma) -1)
4066 {
4067 asection *splt;
4068 asection *srela;
4069 Elf_Internal_Rela rela;
4070 bfd_byte *loc;
910600e9 4071 bfd_vma r_offset, got_offset;
22b75d0a
DM		 4072 int rela_index;
4073
d0c9aeb3
DM		 4074 /* When building a static executable, use .iplt and
4075 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4076 if (htab->elf.splt != NULL)
4077 {
4078 splt = htab->elf.splt;
4079 srela = htab->elf.srelplt;
4080 }
4081 else
4082 {
4083 splt = htab->elf.iplt;
4084 srela = htab->elf.irelplt;
4085 }
22b75d0a 4086
d0c9aeb3
DM		 4087 if (splt == NULL || srela == NULL)
4088 abort ();
22b75d0a 4089
22b75d0a 4090 /* Fill in the entry in the .rela.plt section. */
910600e9 4091 if (htab->is_vxworks)
22b75d0a 4092 {
910600e9
RS		 4093 /* Work out the index of this PLT entry. */
4094 rela_index = ((h->plt.offset - htab->plt_header_size)
4095 / htab->plt_entry_size);
4096
4097 /* Calculate the offset of the associated .got.plt entry.
4098 The first three entries are reserved. */
4099 got_offset = (rela_index + 3) * 4;
4100
4101 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4102 rela_index, got_offset);
4103
4104
4105 /* On VxWorks, the relocation points to the .got.plt entry,
4106 not the .plt entry. */
72fbc6e5
DM		 4107 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4108 + htab->elf.sgotplt->output_offset
910600e9 4109 + got_offset);
22b75d0a 4110 rela.r_addend = 0;
d0c9aeb3
DM		 4111 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4112 R_SPARC_JMP_SLOT);
22b75d0a
DM		 4113 }
4114 else
4115 {
d0c9aeb3
DM		 4116 bfd_boolean ifunc = FALSE;
4117
910600e9
RS		 4118 /* Fill in the entry in the procedure linkage table. */
4119 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4120 h->plt.offset, splt->size,
4121 &r_offset);
4122
d0c9aeb3
DM		 4123 if (h == NULL
4124 || h->dynindx == -1
4125 || ((info->executable
4126 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4127 && h->def_regular
4128 && h->type == STT_GNU_IFUNC))
4129 {
4130 ifunc = TRUE;
4131 BFD_ASSERT (h == NULL
4132 || (h->type == STT_GNU_IFUNC
4133 && h->def_regular
4134 && (h->root.type == bfd_link_hash_defined
4135 || h->root.type == bfd_link_hash_defweak)));
4136 }
4137
910600e9
RS		 4138 rela.r_offset = r_offset
4139 + (splt->output_section->vma + splt->output_offset);
d0c9aeb3
DM		 4140 if (ABI_64_P (output_bfd)
4141 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
910600e9 4142 {
d0c9aeb3
DM		 4143 if (ifunc)
4144 {
4145 rela.r_addend = (h->root.u.def.section->output_section->vma
4146 + h->root.u.def.section->output_offset
4147 + h->root.u.def.value);
4148 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4149 R_SPARC_IRELATIVE);
4150 }
4151 else
4152 {
4153 rela.r_addend = (-(h->plt.offset + 4)
4154 - splt->output_section->vma
4155 - splt->output_offset);
4156 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4157 R_SPARC_JMP_SLOT);
4158 }
910600e9
RS		 4159 }
4160 else
4161 {
d0c9aeb3
DM		 4162 if (ifunc)
4163 {
4164 rela.r_addend = (h->root.u.def.section->output_section->vma
4165 + h->root.u.def.section->output_offset
4166 + h->root.u.def.value);
4167 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4168 R_SPARC_JMP_IREL);
4169 }
4170 else
4171 {
4172 rela.r_addend = 0;
4173 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4174 R_SPARC_JMP_SLOT);
4175 }
910600e9 4176 }
22b75d0a 4177 }
22b75d0a
DM		 4178
4179 /* Adjust for the first 4 reserved elements in the .plt section
4180 when setting the offset in the .rela.plt section.
4181 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4182 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4183
4184 loc = srela->contents;
39817122
RS		 4185 loc += rela_index * bed->s->sizeof_rela;
4186 bed->s->swap_reloca_out (output_bfd, &rela, loc);
22b75d0a
DM		 4187
4188 if (!h->def_regular)
4189 {
4190 /* Mark the symbol as undefined, rather than as defined in
4191 the .plt section. Leave the value alone. */
4192 sym->st_shndx = SHN_UNDEF;
4193 /* If the symbol is weak, we do need to clear the value.
4194 Otherwise, the PLT entry would provide a definition for
4195 the symbol even if the symbol wasn't defined anywhere,
4196 and so the symbol would never be NULL. */
4197 if (!h->ref_regular_nonweak)
4198 sym->st_value = 0;
4199 }
4200 }
4201
4202 if (h->got.offset != (bfd_vma) -1
4203 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4204 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
4205 {
4206 asection *sgot;
4207 asection *srela;
4208 Elf_Internal_Rela rela;
4209
4210 /* This symbol has an entry in the GOT. Set it up. */
4211
72fbc6e5
DM		 4212 sgot = htab->elf.sgot;
4213 srela = htab->elf.srelgot;
22b75d0a
DM		 4214 BFD_ASSERT (sgot != NULL && srela != NULL);
4215
4216 rela.r_offset = (sgot->output_section->vma
4217 + sgot->output_offset
4218 + (h->got.offset &~ (bfd_vma) 1));
4219
4220 /* If this is a -Bsymbolic link, and the symbol is defined
4221 locally, we just want to emit a RELATIVE reloc. Likewise if
4222 the symbol was forced to be local because of a version file.
4223 The entry in the global offset table will already have been
4224 initialized in the relocate_section function. */
d0c9aeb3
DM		 4225 if (! info->shared
4226 && h->type == STT_GNU_IFUNC
4227 && h->def_regular)
4228 {
4229 asection *plt;
4230
4231 /* We load the GOT entry with the PLT entry. */
4232 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4233 SPARC_ELF_PUT_WORD (htab, output_bfd,
4234 (plt->output_section->vma
4235 + plt->output_offset + h->plt.offset),
4236 htab->elf.sgot->contents
4237 + (h->got.offset & ~(bfd_vma) 1));
4238 return TRUE;
4239 }
4240 else if (info->shared
4241 && SYMBOL_REFERENCES_LOCAL (info, h))
22b75d0a
DM		 4242 {
4243 asection *sec = h->root.u.def.section;
d0c9aeb3
DM		 4244 if (h->type == STT_GNU_IFUNC)
4245 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4246 else
4247 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
22b75d0a
DM		 4248 rela.r_addend = (h->root.u.def.value
4249 + sec->output_section->vma
4250 + sec->output_offset);
4251 }
4252 else
4253 {
4254 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4255 rela.r_addend = 0;
4256 }
4257
4258 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4259 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
39817122 4260 sparc_elf_append_rela (output_bfd, srela, &rela);
22b75d0a
DM		 4261 }
4262
4263 if (h->needs_copy)
4264 {
4265 asection *s;
4266 Elf_Internal_Rela rela;
4267
4268 /* This symbols needs a copy reloc. Set it up. */
4269 BFD_ASSERT (h->dynindx != -1);
4270
4271 s = bfd_get_section_by_name (h->root.u.def.section->owner,
4272 ".rela.bss");
4273 BFD_ASSERT (s != NULL);
4274
4275 rela.r_offset = (h->root.u.def.value
4276 + h->root.u.def.section->output_section->vma
4277 + h->root.u.def.section->output_offset);
4278 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4279 rela.r_addend = 0;
39817122 4280 sparc_elf_append_rela (output_bfd, s, &rela);
22b75d0a
DM		 4281 }
4282
910600e9
RS		 4283 /* Mark some specially defined symbols as absolute. On VxWorks,
4284 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4285 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
d0c9aeb3
DM		 4286 if (sym != NULL
4287 && (strcmp (h->root.root.string, "_DYNAMIC") == 0
4288 || (!htab->is_vxworks
4289 && (h == htab->elf.hgot || h == htab->elf.hplt))))
22b75d0a
DM		 4290 sym->st_shndx = SHN_ABS;
4291
4292 return TRUE;
4293}
4294
4295/* Finish up the dynamic sections. */
4296
22b75d0a 4297static bfd_boolean
39817122
RS		 4298sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4299 bfd *dynobj, asection *sdyn,
4300 asection *splt ATTRIBUTE_UNUSED)
22b75d0a 4301{
910600e9 4302 struct _bfd_sparc_elf_link_hash_table *htab;
39817122
RS		 4303 const struct elf_backend_data *bed;
4304 bfd_byte *dyncon, *dynconend;
4305 size_t dynsize;
4306 int stt_regidx = -1;
4307 bfd_boolean abi_64_p;
22b75d0a 4308
910600e9 4309 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4310 BFD_ASSERT (htab != NULL);
39817122
RS		 4311 bed = get_elf_backend_data (output_bfd);
4312 dynsize = bed->s->sizeof_dyn;
4313 dynconend = sdyn->contents + sdyn->size;
4314 abi_64_p = ABI_64_P (output_bfd);
4315 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
22b75d0a
DM		 4316 {
4317 Elf_Internal_Dyn dyn;
4318 const char *name;
4319 bfd_boolean size;
4320
39817122 4321 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
22b75d0a 4322
910600e9 4323 if (htab->is_vxworks && dyn.d_tag == DT_RELASZ)
22b75d0a 4324 {
910600e9
RS		 4325 /* On VxWorks, DT_RELASZ should not include the relocations
4326 in .rela.plt. */
72fbc6e5 4327 if (htab->elf.srelplt)
910600e9 4328 {
72fbc6e5 4329 dyn.d_un.d_val -= htab->elf.srelplt->size;
39817122 4330 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
910600e9 4331 }
22b75d0a 4332 }
910600e9 4333 else if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
22b75d0a 4334 {
910600e9
RS		 4335 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4336 not to the start of the PLT. */
72fbc6e5 4337 if (htab->elf.sgotplt)
910600e9 4338 {
72fbc6e5
DM		 4339 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4340 + htab->elf.sgotplt->output_offset);
39817122 4341 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
910600e9
RS		 4342 }
4343 }
7a2b07ff
NS		 4344 else if (htab->is_vxworks
4345 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4346 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
39817122
RS		 4347 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4348 {
4349 if (stt_regidx == -1)
4350 {
4351 stt_regidx =
4352 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4353 if (stt_regidx == -1)
4354 return FALSE;
4355 }
4356 dyn.d_un.d_val = stt_regidx++;
4357 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4358 }
910600e9
RS		 4359 else
4360 {
4361 switch (dyn.d_tag)
4362 {
4363 case DT_PLTGOT: name = ".plt"; size = FALSE; break;
4364 case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break;
4365 case DT_JMPREL: name = ".rela.plt"; size = FALSE; break;
39817122 4366 default: name = NULL; size = FALSE; break;
910600e9 4367 }
22b75d0a 4368
910600e9 4369 if (name != NULL)
22b75d0a 4370 {
910600e9
RS		 4371 asection *s;
4372
4373 s = bfd_get_section_by_name (output_bfd, name);
4374 if (s == NULL)
4375 dyn.d_un.d_val = 0;
22b75d0a 4376 else
910600e9
RS		 4377 {
4378 if (! size)
4379 dyn.d_un.d_ptr = s->vma;
4380 else
4381 dyn.d_un.d_val = s->size;
4382 }
39817122 4383 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
22b75d0a 4384 }
22b75d0a
DM		 4385 }
4386 }
4387 return TRUE;
4388}
4389
910600e9
RS		 4390/* Install the first PLT entry in a VxWorks executable and make sure that
4391 .rela.plt.unloaded relocations have the correct symbol indexes. */
4392
4393static void
4394sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4395{
4396 struct _bfd_sparc_elf_link_hash_table *htab;
4397 Elf_Internal_Rela rela;
4398 bfd_vma got_base;
4399 bfd_byte *loc;
4400
4401 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4402 BFD_ASSERT (htab != NULL);
910600e9
RS		 4403
4404 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4405 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4406 + htab->elf.hgot->root.u.def.section->output_offset
4407 + htab->elf.hgot->root.u.def.value);
4408
4409 /* Install the initial PLT entry. */
4410 bfd_put_32 (output_bfd,
4411 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
72fbc6e5 4412 htab->elf.splt->contents);
910600e9
RS		 4413 bfd_put_32 (output_bfd,
4414 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
72fbc6e5 4415 htab->elf.splt->contents + 4);
910600e9
RS		 4416 bfd_put_32 (output_bfd,
4417 sparc_vxworks_exec_plt0_entry[2],
72fbc6e5 4418 htab->elf.splt->contents + 8);
910600e9
RS		 4419 bfd_put_32 (output_bfd,
4420 sparc_vxworks_exec_plt0_entry[3],
72fbc6e5 4421 htab->elf.splt->contents + 12);
910600e9
RS		 4422 bfd_put_32 (output_bfd,
4423 sparc_vxworks_exec_plt0_entry[4],
72fbc6e5 4424 htab->elf.splt->contents + 16);
910600e9
RS		 4425
4426 loc = htab->srelplt2->contents;
4427
4428 /* Add an unloaded relocation for the initial entry's "sethi". */
72fbc6e5
DM		 4429 rela.r_offset = (htab->elf.splt->output_section->vma
4430 + htab->elf.splt->output_offset);
910600e9
RS		 4431 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4432 rela.r_addend = 8;
4433 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4434 loc += sizeof (Elf32_External_Rela);
4435
4436 /* Likewise the following "or". */
4437 rela.r_offset += 4;
4438 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4439 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4440 loc += sizeof (Elf32_External_Rela);
4441
4442 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4443 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4444 in which symbols were output. */
4445 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4446 {
4447 Elf_Internal_Rela rel;
4448
4449 /* The entry's initial "sethi" (against _G_O_T_). */
4450 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4451 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4452 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4453 loc += sizeof (Elf32_External_Rela);
4454
4455 /* The following "or" (also against _G_O_T_). */
4456 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4457 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4458 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4459 loc += sizeof (Elf32_External_Rela);
4460
4461 /* The .got.plt entry (against _P_L_T_). */
4462 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4463 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4464 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4465 loc += sizeof (Elf32_External_Rela);
4466 }
4467}
4468
4469/* Install the first PLT entry in a VxWorks shared object. */
4470
4471static void
4472sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4473{
4474 struct _bfd_sparc_elf_link_hash_table *htab;
4475 unsigned int i;
4476
4477 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4478 BFD_ASSERT (htab != NULL);
4479
910600e9
RS		 4480 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4481 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
72fbc6e5 4482 htab->elf.splt->contents + i * 4);
910600e9
RS		 4483}
4484
d0c9aeb3
DM		 4485/* Finish up local dynamic symbol handling. We set the contents of
4486 various dynamic sections here. */
4487
4488static bfd_boolean
4489finish_local_dynamic_symbol (void **slot, void *inf)
4490{
4491 struct elf_link_hash_entry *h
4492 = (struct elf_link_hash_entry *) *slot;
4493 struct bfd_link_info *info
4494 = (struct bfd_link_info *) inf;
4495
4496 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4497 h, NULL);
4498}
4499
22b75d0a
DM		 4500bfd_boolean
4501_bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4502{
4503 bfd *dynobj;
4504 asection *sdyn;
4505 struct _bfd_sparc_elf_link_hash_table *htab;
4506
4507 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4508 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 4509 dynobj = htab->elf.dynobj;
4510
4511 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4512
4513 if (elf_hash_table (info)->dynamic_sections_created)
4514 {
4515 asection *splt;
22b75d0a
DM		 4516
4517 splt = bfd_get_section_by_name (dynobj, ".plt");
4518 BFD_ASSERT (splt != NULL && sdyn != NULL);
4519
39817122
RS		 4520 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4521 return FALSE;
22b75d0a
DM		 4522
4523 /* Initialize the contents of the .plt section. */
4524 if (splt->size > 0)
4525 {
910600e9
RS		 4526 if (htab->is_vxworks)
4527 {
4528 if (info->shared)
4529 sparc_vxworks_finish_shared_plt (output_bfd, info);
4530 else
4531 sparc_vxworks_finish_exec_plt (output_bfd, info);
4532 }
22b75d0a
DM		 4533 else
4534 {
910600e9
RS		 4535 memset (splt->contents, 0, htab->plt_header_size);
4536 if (!ABI_64_P (output_bfd))
4537 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4538 splt->contents + splt->size - 4);
22b75d0a
DM		 4539 }
4540 }
4541
910600e9 4542 elf_section_data (splt->output_section)->this_hdr.sh_entsize
7eeb1be6
JJ		 4543 = (htab->is_vxworks || !ABI_64_P (output_bfd))
4544 ? 0 : htab->plt_entry_size;
22b75d0a
DM		 4545 }
4546
4547 /* Set the first entry in the global offset table to the address of
4548 the dynamic section. */
72fbc6e5 4549 if (htab->elf.sgot && htab->elf.sgot->size > 0)
22b75d0a
DM		 4550 {
4551 bfd_vma val = (sdyn ?
4552 sdyn->output_section->vma + sdyn->output_offset :
4553 0);
4554
72fbc6e5 4555 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
22b75d0a
DM		 4556 }
4557
72fbc6e5
DM		 4558 if (htab->elf.sgot)
4559 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
22b75d0a
DM		 4560 SPARC_ELF_WORD_BYTES (htab);
4561
d0c9aeb3
DM		 4562 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4563 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4564
22b75d0a
DM		 4565 return TRUE;
4566}
4567
4568\f
4569/* Set the right machine number for a SPARC ELF file. */
4570
4571bfd_boolean
4572_bfd_sparc_elf_object_p (bfd *abfd)
4573{
4574 if (ABI_64_P (abfd))
4575 {
4576 unsigned long mach = bfd_mach_sparc_v9;
4577
4578 if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4579 mach = bfd_mach_sparc_v9b;
4580 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4581 mach = bfd_mach_sparc_v9a;
4582 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4583 }
4584 else
4585 {
4586 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4587 {
4588 if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4589 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4590 bfd_mach_sparc_v8plusb);
4591 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4592 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4593 bfd_mach_sparc_v8plusa);
4594 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4595 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4596 bfd_mach_sparc_v8plus);
4597 else
4598 return FALSE;
4599 }
4600 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4601 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4602 bfd_mach_sparc_sparclite_le);
4603 else
4604 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4605 }
4606}
4607
4608/* Return address for Ith PLT stub in section PLT, for relocation REL
4609 or (bfd_vma) -1 if it should not be included. */
4610
4611bfd_vma
4612_bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
4613{
4614 if (ABI_64_P (plt->owner))
4615 {
4616 bfd_vma j;
4617
4618 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
4619 if (i < PLT64_LARGE_THRESHOLD)
4620 return plt->vma + i * PLT64_ENTRY_SIZE;
4621
4622 j = (i - PLT64_LARGE_THRESHOLD) % 160;
4623 i -= j;
4624 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
4625 }
4626 else
4627 return rel->address;
4628}
GDB Binutils - Deliverables
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