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Have ptype handle types declared pragma Unchecked_Variants.
[deliverable/binutils-gdb.git] / bfd / elfxx-sparc.c
CommitLineData
22b75d0a 1/* SPARC-specific support for ELF
4dfe6ac6 2 Copyright 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
22b75d0a
DM		 3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
cd123cb7 8 the Free Software Foundation; either version 3 of the License, or
22b75d0a
DM		 9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
cd123cb7
NC		 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
22b75d0a
DM		 21
22/* This file handles functionality common to the different SPARC ABI's. */
23
22b75d0a 24#include "sysdep.h"
3db64b00 25#include "bfd.h"
22b75d0a
DM		 26#include "bfdlink.h"
27#include "libbfd.h"
910600e9 28#include "libiberty.h"
22b75d0a
DM		 29#include "elf-bfd.h"
30#include "elf/sparc.h"
31#include "opcode/sparc.h"
32#include "elfxx-sparc.h"
910600e9 33#include "elf-vxworks.h"
d0c9aeb3
DM		 34#include "objalloc.h"
35#include "hashtab.h"
22b75d0a
DM		 36
37/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
38#define MINUS_ONE (~ (bfd_vma) 0)
39
40#define ABI_64_P(abfd) \
41 (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
42
43/* The relocation "howto" table. */
44
45/* Utility for performing the standard initial work of an instruction
46 relocation.
47 *PRELOCATION will contain the relocated item.
48 *PINSN will contain the instruction from the input stream.
49 If the result is `bfd_reloc_other' the caller can continue with
50 performing the relocation. Otherwise it must stop and return the
51 value to its caller. */
52
53static bfd_reloc_status_type
54init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
55 PTR data, asection *input_section, bfd *output_bfd,
56 bfd_vma *prelocation, bfd_vma *pinsn)
57{
58 bfd_vma relocation;
59 reloc_howto_type *howto = reloc_entry->howto;
60
61 if (output_bfd != (bfd *) NULL
62 && (symbol->flags & BSF_SECTION_SYM) == 0
63 && (! howto->partial_inplace
64 || reloc_entry->addend == 0))
65 {
66 reloc_entry->address += input_section->output_offset;
67 return bfd_reloc_ok;
68 }
69
70 /* This works because partial_inplace is FALSE. */
71 if (output_bfd != NULL)
72 return bfd_reloc_continue;
73
74 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
75 return bfd_reloc_outofrange;
76
77 relocation = (symbol->value
78 + symbol->section->output_section->vma
79 + symbol->section->output_offset);
80 relocation += reloc_entry->addend;
81 if (howto->pc_relative)
82 {
83 relocation -= (input_section->output_section->vma
84 + input_section->output_offset);
85 relocation -= reloc_entry->address;
86 }
87
88 *prelocation = relocation;
89 *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
90 return bfd_reloc_other;
91}
92
93/* For unsupported relocs. */
94
95static bfd_reloc_status_type
96sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
97 arelent *reloc_entry ATTRIBUTE_UNUSED,
98 asymbol *symbol ATTRIBUTE_UNUSED,
99 PTR data ATTRIBUTE_UNUSED,
100 asection *input_section ATTRIBUTE_UNUSED,
101 bfd *output_bfd ATTRIBUTE_UNUSED,
102 char **error_message ATTRIBUTE_UNUSED)
103{
104 return bfd_reloc_notsupported;
105}
106
107/* Handle the WDISP16 reloc. */
108
109static bfd_reloc_status_type
110sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
111 PTR data, asection *input_section, bfd *output_bfd,
112 char **error_message ATTRIBUTE_UNUSED)
113{
114 bfd_vma relocation;
115 bfd_vma insn;
116 bfd_reloc_status_type status;
117
118 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
119 input_section, output_bfd, &relocation, &insn);
120 if (status != bfd_reloc_other)
121 return status;
122
123 insn &= ~ (bfd_vma) 0x303fff;
124 insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
125 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
126
127 if ((bfd_signed_vma) relocation < - 0x40000
128 || (bfd_signed_vma) relocation > 0x3ffff)
129 return bfd_reloc_overflow;
130 else
131 return bfd_reloc_ok;
132}
133
134/* Handle the HIX22 reloc. */
135
136static bfd_reloc_status_type
137sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
138 PTR data, asection *input_section, bfd *output_bfd,
139 char **error_message ATTRIBUTE_UNUSED)
140{
141 bfd_vma relocation;
142 bfd_vma insn;
143 bfd_reloc_status_type status;
144
145 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
146 input_section, output_bfd, &relocation, &insn);
147 if (status != bfd_reloc_other)
148 return status;
149
150 relocation ^= MINUS_ONE;
151 insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
152 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
153
154 if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
155 return bfd_reloc_overflow;
156 else
157 return bfd_reloc_ok;
158}
159
160/* Handle the LOX10 reloc. */
161
162static bfd_reloc_status_type
163sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
164 PTR data, asection *input_section, bfd *output_bfd,
165 char **error_message ATTRIBUTE_UNUSED)
166{
167 bfd_vma relocation;
168 bfd_vma insn;
169 bfd_reloc_status_type status;
170
171 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
172 input_section, output_bfd, &relocation, &insn);
173 if (status != bfd_reloc_other)
174 return status;
175
176 insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
177 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
178
179 return bfd_reloc_ok;
180}
181
182static reloc_howto_type _bfd_sparc_elf_howto_table[] =
183{
184 HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
185 HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
186 HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
187 HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
188 HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
189 HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
190 HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
191 HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
192 HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
193 HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
194 HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
195 HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
196 HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
197 HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
198 HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
199 HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
200 HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
201 HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
202 HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
203 HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
204 HOWTO(R_SPARC_GLOB_DAT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",FALSE,0,0x00000000,TRUE),
205 HOWTO(R_SPARC_JMP_SLOT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",FALSE,0,0x00000000,TRUE),
206 HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
207 HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
208 HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
209 HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
210 HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
211 HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
212 HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
213 HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
214 HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
215 HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
216 HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE),
217 HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE),
218 HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE),
219 HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE),
220 HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE),
221 HOWTO(R_SPARC_PC_HH22, 42,2,22,TRUE, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", FALSE,0,0x003fffff,TRUE),
222 HOWTO(R_SPARC_PC_HM10, 32,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", FALSE,0,0x000003ff,TRUE),
223 HOWTO(R_SPARC_PC_LM22, 10,2,22,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", FALSE,0,0x003fffff,TRUE),
224 HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
225 HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
226 HOWTO(R_SPARC_UNUSED_42, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",FALSE,0,0x00000000,TRUE),
227 HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
228 HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
229 HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
230 HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE),
231 HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE),
232 HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE),
233 HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE),
234 HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE),
235 HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE),
236 HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE),
237 HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE),
238 HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE),
239 HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
240 HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE),
241 HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE),
242 HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",FALSE,0,0x00000000,TRUE),
243 HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE),
244 HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE),
245 HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE),
246 HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",FALSE,0,0x00000000,TRUE),
247 HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE),
248 HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE),
249 HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE),
250 HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",FALSE,0,0x00000000,TRUE),
251 HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE),
252 HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE),
253 HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",FALSE,0,0x00000000,TRUE),
254 HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",FALSE,0,0x00000000,TRUE),
255 HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",FALSE,0,0x00000000,TRUE),
256 HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE),
257 HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE),
258 HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",FALSE,0,0x00000000,TRUE),
259 HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",FALSE,0,0x00000000,TRUE),
260 HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE),
261 HOWTO(R_SPARC_TLS_DTPOFF64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",FALSE,0,MINUS_ONE,TRUE),
262 HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE),
739f7f82
DM		 263 HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE),
264 HOWTO(R_SPARC_GOTDATA_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",FALSE,0,0x003fffff, FALSE),
265 HOWTO(R_SPARC_GOTDATA_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",FALSE,0,0x000003ff, FALSE),
266 HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",FALSE,0,0x003fffff, FALSE),
267 HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",FALSE,0,0x000003ff, FALSE),
268 HOWTO(R_SPARC_GOTDATA_OP,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOTDATA_OP",FALSE,0,0x00000000,TRUE),
22b75d0a 269};
d0c9aeb3
DM		 270static reloc_howto_type sparc_jmp_irel_howto =
271 HOWTO(R_SPARC_JMP_IREL, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_IREL",FALSE,0,0x00000000,TRUE);
272static reloc_howto_type sparc_irelative_howto =
273 HOWTO(R_SPARC_IRELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_IRELATIVE",FALSE,0,0x00000000,TRUE);
22b75d0a
DM		 274static reloc_howto_type sparc_vtinherit_howto =
275 HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE);
276static reloc_howto_type sparc_vtentry_howto =
277 HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", FALSE,0,0, FALSE);
278static reloc_howto_type sparc_rev32_howto =
279 HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE);
280
22b75d0a
DM		 281reloc_howto_type *
282_bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
283 bfd_reloc_code_real_type code)
284{
679b7c76
DM		 285 /* We explicitly handle each relocation type in the switch
286 instead of using a lookup table for efficiency. */
22b75d0a
DM		 287 switch (code)
288 {
679b7c76
DM		 289 case BFD_RELOC_NONE:
290 return &_bfd_sparc_elf_howto_table[R_SPARC_NONE];
291
292 case BFD_RELOC_8:
293 return &_bfd_sparc_elf_howto_table[R_SPARC_8];
294
295 case BFD_RELOC_16:
296 return &_bfd_sparc_elf_howto_table[R_SPARC_16];
297
298 case BFD_RELOC_32:
299 return &_bfd_sparc_elf_howto_table[R_SPARC_32];
300
301 case BFD_RELOC_8_PCREL:
302 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP8];
303
304 case BFD_RELOC_16_PCREL:
305 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP16];
306
307 case BFD_RELOC_32_PCREL:
308 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP32];
309
310 case BFD_RELOC_32_PCREL_S2:
311 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP30];
312
313 case BFD_RELOC_SPARC_WDISP22:
314 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP22];
315
316 case BFD_RELOC_HI22:
317 return &_bfd_sparc_elf_howto_table[R_SPARC_HI22];
318
319 case BFD_RELOC_SPARC22:
320 return &_bfd_sparc_elf_howto_table[R_SPARC_22];
321
322 case BFD_RELOC_SPARC13:
323 return &_bfd_sparc_elf_howto_table[R_SPARC_13];
324
325 case BFD_RELOC_LO10:
326 return &_bfd_sparc_elf_howto_table[R_SPARC_LO10];
327
328 case BFD_RELOC_SPARC_GOT10:
329 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT10];
330
331 case BFD_RELOC_SPARC_GOT13:
332 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT13];
333
334 case BFD_RELOC_SPARC_GOT22:
335 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT22];
336
337 case BFD_RELOC_SPARC_PC10:
338 return &_bfd_sparc_elf_howto_table[R_SPARC_PC10];
339
340 case BFD_RELOC_SPARC_PC22:
341 return &_bfd_sparc_elf_howto_table[R_SPARC_PC22];
342
343 case BFD_RELOC_SPARC_WPLT30:
344 return &_bfd_sparc_elf_howto_table[R_SPARC_WPLT30];
345
346 case BFD_RELOC_SPARC_COPY:
347 return &_bfd_sparc_elf_howto_table[R_SPARC_COPY];
348
349 case BFD_RELOC_SPARC_GLOB_DAT:
350 return &_bfd_sparc_elf_howto_table[R_SPARC_GLOB_DAT];
351
352 case BFD_RELOC_SPARC_JMP_SLOT:
353 return &_bfd_sparc_elf_howto_table[R_SPARC_JMP_SLOT];
354
355 case BFD_RELOC_SPARC_RELATIVE:
356 return &_bfd_sparc_elf_howto_table[R_SPARC_RELATIVE];
357
358 case BFD_RELOC_SPARC_UA32:
359 return &_bfd_sparc_elf_howto_table[R_SPARC_UA32];
360
361 case BFD_RELOC_SPARC_PLT32:
362 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT32];
363
364 case BFD_RELOC_SPARC_10:
365 return &_bfd_sparc_elf_howto_table[R_SPARC_10];
366
367 case BFD_RELOC_SPARC_11:
368 return &_bfd_sparc_elf_howto_table[R_SPARC_11];
369
370 case BFD_RELOC_SPARC_64:
371 return &_bfd_sparc_elf_howto_table[R_SPARC_64];
372
373 case BFD_RELOC_SPARC_OLO10:
374 return &_bfd_sparc_elf_howto_table[R_SPARC_OLO10];
375
376 case BFD_RELOC_SPARC_HH22:
377 return &_bfd_sparc_elf_howto_table[R_SPARC_HH22];
378
379 case BFD_RELOC_SPARC_HM10:
380 return &_bfd_sparc_elf_howto_table[R_SPARC_HM10];
381
382 case BFD_RELOC_SPARC_LM22:
383 return &_bfd_sparc_elf_howto_table[R_SPARC_LM22];
384
385 case BFD_RELOC_SPARC_PC_HH22:
386 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HH22];
387
388 case BFD_RELOC_SPARC_PC_HM10:
389 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HM10];
390
391 case BFD_RELOC_SPARC_PC_LM22:
392 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_LM22];
393
394 case BFD_RELOC_SPARC_WDISP16:
395 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP16];
396
397 case BFD_RELOC_SPARC_WDISP19:
398 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP19];
399
400 case BFD_RELOC_SPARC_7:
401 return &_bfd_sparc_elf_howto_table[R_SPARC_7];
402
403 case BFD_RELOC_SPARC_5:
404 return &_bfd_sparc_elf_howto_table[R_SPARC_5];
405
406 case BFD_RELOC_SPARC_6:
407 return &_bfd_sparc_elf_howto_table[R_SPARC_6];
408
409 case BFD_RELOC_SPARC_DISP64:
410 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP64];
411
412 case BFD_RELOC_SPARC_PLT64:
413 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT64];
414
415 case BFD_RELOC_SPARC_HIX22:
416 return &_bfd_sparc_elf_howto_table[R_SPARC_HIX22];
417
418 case BFD_RELOC_SPARC_LOX10:
419 return &_bfd_sparc_elf_howto_table[R_SPARC_LOX10];
420
421 case BFD_RELOC_SPARC_H44:
422 return &_bfd_sparc_elf_howto_table[R_SPARC_H44];
423
424 case BFD_RELOC_SPARC_M44:
425 return &_bfd_sparc_elf_howto_table[R_SPARC_M44];
426
427 case BFD_RELOC_SPARC_L44:
428 return &_bfd_sparc_elf_howto_table[R_SPARC_L44];
429
430 case BFD_RELOC_SPARC_REGISTER:
431 return &_bfd_sparc_elf_howto_table[R_SPARC_REGISTER];
432
433 case BFD_RELOC_SPARC_UA64:
434 return &_bfd_sparc_elf_howto_table[R_SPARC_UA64];
435
436 case BFD_RELOC_SPARC_UA16:
437 return &_bfd_sparc_elf_howto_table[R_SPARC_UA16];
438
439 case BFD_RELOC_SPARC_TLS_GD_HI22:
440 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_HI22];
441
442 case BFD_RELOC_SPARC_TLS_GD_LO10:
443 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_LO10];
444
445 case BFD_RELOC_SPARC_TLS_GD_ADD:
446 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_ADD];
447
448 case BFD_RELOC_SPARC_TLS_GD_CALL:
449 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_CALL];
450
451 case BFD_RELOC_SPARC_TLS_LDM_HI22:
452 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_HI22];
453
454 case BFD_RELOC_SPARC_TLS_LDM_LO10:
455 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_LO10];
456
457 case BFD_RELOC_SPARC_TLS_LDM_ADD:
458 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_ADD];
459
460 case BFD_RELOC_SPARC_TLS_LDM_CALL:
461 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_CALL];
462
463 case BFD_RELOC_SPARC_TLS_LDO_HIX22:
464 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_HIX22];
465
466 case BFD_RELOC_SPARC_TLS_LDO_LOX10:
467 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_LOX10];
468
469 case BFD_RELOC_SPARC_TLS_LDO_ADD:
470 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_ADD];
471
472 case BFD_RELOC_SPARC_TLS_IE_HI22:
473 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_HI22];
474
475 case BFD_RELOC_SPARC_TLS_IE_LO10:
476 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LO10];
477
478 case BFD_RELOC_SPARC_TLS_IE_LD:
479 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LD];
480
481 case BFD_RELOC_SPARC_TLS_IE_LDX:
482 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LDX];
483
484 case BFD_RELOC_SPARC_TLS_IE_ADD:
485 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_ADD];
486
487 case BFD_RELOC_SPARC_TLS_LE_HIX22:
488 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_HIX22];
489
490 case BFD_RELOC_SPARC_TLS_LE_LOX10:
491 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_LOX10];
492
493 case BFD_RELOC_SPARC_TLS_DTPMOD32:
494 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD32];
495
496 case BFD_RELOC_SPARC_TLS_DTPMOD64:
497 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD64];
498
499 case BFD_RELOC_SPARC_TLS_DTPOFF32:
500 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF32];
501
502 case BFD_RELOC_SPARC_TLS_DTPOFF64:
503 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF64];
504
505 case BFD_RELOC_SPARC_TLS_TPOFF32:
506 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF32];
507
508 case BFD_RELOC_SPARC_TLS_TPOFF64:
509 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF64];
510
511 case BFD_RELOC_SPARC_GOTDATA_HIX22:
512 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_HIX22];
513
514 case BFD_RELOC_SPARC_GOTDATA_LOX10:
515 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_LOX10];
516
517 case BFD_RELOC_SPARC_GOTDATA_OP_HIX22:
518 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_HIX22];
519
520 case BFD_RELOC_SPARC_GOTDATA_OP_LOX10:
521 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_LOX10];
522
523 case BFD_RELOC_SPARC_GOTDATA_OP:
524 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP];
525
d0c9aeb3
DM		 526 case BFD_RELOC_SPARC_JMP_IREL:
527 return &sparc_jmp_irel_howto;
528
529 case BFD_RELOC_SPARC_IRELATIVE:
530 return &sparc_irelative_howto;
531
22b75d0a
DM		 532 case BFD_RELOC_VTABLE_INHERIT:
533 return &sparc_vtinherit_howto;
534
535 case BFD_RELOC_VTABLE_ENTRY:
536 return &sparc_vtentry_howto;
537
538 case BFD_RELOC_SPARC_REV32:
539 return &sparc_rev32_howto;
540
541 default:
679b7c76 542 break;
22b75d0a
DM		 543 }
544 bfd_set_error (bfd_error_bad_value);
545 return NULL;
546}
547
157090f7
AM		 548reloc_howto_type *
549_bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
550 const char *r_name)
551{
552 unsigned int i;
553
554 for (i = 0;
555 i < (sizeof (_bfd_sparc_elf_howto_table)
556 / sizeof (_bfd_sparc_elf_howto_table[0]));
557 i++)
558 if (_bfd_sparc_elf_howto_table[i].name != NULL
559 && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
560 return &_bfd_sparc_elf_howto_table[i];
561
562 if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
563 return &sparc_vtinherit_howto;
564 if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
565 return &sparc_vtentry_howto;
566 if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
567 return &sparc_rev32_howto;
568
569 return NULL;
570}
571
22b75d0a
DM		 572reloc_howto_type *
573_bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type)
574{
575 switch (r_type)
576 {
d0c9aeb3
DM		 577 case R_SPARC_JMP_IREL:
578 return &sparc_jmp_irel_howto;
579
580 case R_SPARC_IRELATIVE:
581 return &sparc_irelative_howto;
582
22b75d0a
DM		 583 case R_SPARC_GNU_VTINHERIT:
584 return &sparc_vtinherit_howto;
585
586 case R_SPARC_GNU_VTENTRY:
587 return &sparc_vtentry_howto;
588
589 case R_SPARC_REV32:
590 return &sparc_rev32_howto;
591
592 default:
d0fb9a8d
JJ		 593 if (r_type >= (unsigned int) R_SPARC_max_std)
594 {
595 (*_bfd_error_handler) (_("invalid relocation type %d"),
596 (int) r_type);
597 r_type = R_SPARC_NONE;
598 }
22b75d0a
DM		 599 return &_bfd_sparc_elf_howto_table[r_type];
600 }
601}
602
603/* Both 32-bit and 64-bit sparc encode this in an identical manner,
604 so just take advantage of that. */
605#define SPARC_ELF_R_TYPE(r_info) \
606 ((r_info) & 0xff)
607
608void
609_bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
610 Elf_Internal_Rela *dst)
611{
612 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
613
614 cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type);
615}
616\f
617
618/* The nop opcode we use. */
619#define SPARC_NOP 0x01000000
620
621#define SPARC_INSN_BYTES 4
622
623/* The SPARC linker needs to keep track of the number of relocs that it
624 decides to copy as dynamic relocs in check_relocs for each symbol.
625 This is so that it can later discard them if they are found to be
626 unnecessary. We store the information in a field extending the
627 regular ELF linker hash table. */
628
629struct _bfd_sparc_elf_dyn_relocs
630{
631 struct _bfd_sparc_elf_dyn_relocs *next;
632
633 /* The input section of the reloc. */
634 asection *sec;
635
636 /* Total number of relocs copied for the input section. */
637 bfd_size_type count;
638
639 /* Number of pc-relative relocs copied for the input section. */
640 bfd_size_type pc_count;
641};
642
643/* SPARC ELF linker hash entry. */
644
645struct _bfd_sparc_elf_link_hash_entry
646{
647 struct elf_link_hash_entry elf;
648
649 /* Track dynamic relocs copied for this symbol. */
650 struct _bfd_sparc_elf_dyn_relocs *dyn_relocs;
651
652#define GOT_UNKNOWN 0
653#define GOT_NORMAL 1
654#define GOT_TLS_GD 2
655#define GOT_TLS_IE 3
656 unsigned char tls_type;
657};
658
659#define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
660
661struct _bfd_sparc_elf_obj_tdata
662{
663 struct elf_obj_tdata root;
664
665 /* tls_type for each local got entry. */
666 char *local_got_tls_type;
667
668 /* TRUE if TLS GD relocs has been seen for this object. */
669 bfd_boolean has_tlsgd;
670};
671
672#define _bfd_sparc_elf_tdata(abfd) \
673 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
674
675#define _bfd_sparc_elf_local_got_tls_type(abfd) \
676 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
677
0ffa91dd
NC		 678#define is_sparc_elf(bfd) \
679 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
680 && elf_tdata (bfd) != NULL \
4dfe6ac6 681 && elf_object_id (bfd) == SPARC_ELF_DATA)
0ffa91dd 682
22b75d0a
DM		 683bfd_boolean
684_bfd_sparc_elf_mkobject (bfd *abfd)
685{
0ffa91dd 686 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
4dfe6ac6 687 SPARC_ELF_DATA);
22b75d0a
DM		 688}
689
690static void
91d6fa6a 691sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 692{
91d6fa6a 693 bfd_put_32 (abfd, val, ptr);
22b75d0a
DM		 694}
695
696static void
91d6fa6a 697sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
22b75d0a 698{
91d6fa6a 699 bfd_put_64 (abfd, val, ptr);
22b75d0a
DM		 700}
701
702static void
39817122 703sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
22b75d0a 704{
39817122
RS		 705 const struct elf_backend_data *bed;
706 bfd_byte *loc;
22b75d0a 707
39817122
RS		 708 bed = get_elf_backend_data (abfd);
709 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
710 bed->s->swap_reloca_out (abfd, rel, loc);
22b75d0a
DM		 711}
712
713static bfd_vma
e459dc7b 714sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 715 bfd_vma rel_index ATTRIBUTE_UNUSED,
e459dc7b 716 bfd_vma type ATTRIBUTE_UNUSED)
22b75d0a 717{
91d6fa6a 718 return ELF64_R_INFO (rel_index,
22b75d0a
DM		 719 (in_rel ?
720 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
721 type) : type));
722}
723
724static bfd_vma
725sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
91d6fa6a 726 bfd_vma rel_index, bfd_vma type)
22b75d0a 727{
91d6fa6a 728 return ELF32_R_INFO (rel_index, type);
22b75d0a
DM		 729}
730
731static bfd_vma
732sparc_elf_r_symndx_64 (bfd_vma r_info)
733{
e8be8da4
DM		 734 bfd_vma r_symndx = ELF32_R_SYM (r_info);
735 return (r_symndx >> 24);
22b75d0a
DM		 736}
737
738static bfd_vma
739sparc_elf_r_symndx_32 (bfd_vma r_info)
740{
741 return ELF32_R_SYM (r_info);
742}
743
744/* PLT/GOT stuff */
745
746#define PLT32_ENTRY_SIZE 12
747#define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
748
749/* The first four entries in a 32-bit procedure linkage table are reserved,
750 and the initial contents are unimportant (we zero them out).
751 Subsequent entries look like this. See the SVR4 ABI SPARC
752 supplement to see how this works. */
753
754/* sethi %hi(.-.plt0),%g1. We fill in the address later. */
755#define PLT32_ENTRY_WORD0 0x03000000
756/* b,a .plt0. We fill in the offset later. */
757#define PLT32_ENTRY_WORD1 0x30800000
758/* nop. */
759#define PLT32_ENTRY_WORD2 SPARC_NOP
760
761static int
762sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
763 bfd_vma max ATTRIBUTE_UNUSED,
764 bfd_vma *r_offset)
765{
766 bfd_put_32 (output_bfd,
767 PLT32_ENTRY_WORD0 + offset,
768 splt->contents + offset);
769 bfd_put_32 (output_bfd,
770 (PLT32_ENTRY_WORD1
771 + (((- (offset + 4)) >> 2) & 0x3fffff)),
772 splt->contents + offset + 4);
773 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
774 splt->contents + offset + 8);
775
776 *r_offset = offset;
777
778 return offset / PLT32_ENTRY_SIZE - 4;
779}
780
781/* Both the headers and the entries are icache aligned. */
782#define PLT64_ENTRY_SIZE 32
783#define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
784#define PLT64_LARGE_THRESHOLD 32768
785
786static int
787sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
788 bfd_vma max, bfd_vma *r_offset)
789{
790 unsigned char *entry = splt->contents + offset;
791 const unsigned int nop = SPARC_NOP;
91d6fa6a 792 int plt_index;
22b75d0a
DM		 793
794 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
795 {
796 unsigned int sethi, ba;
797
798 *r_offset = offset;
799
91d6fa6a 800 plt_index = (offset / PLT64_ENTRY_SIZE);
22b75d0a 801
91d6fa6a 802 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
22b75d0a
DM		 803 ba = 0x30680000
804 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
805
806 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
807 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
808 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
809 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
810 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
811 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
812 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
813 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
814 }
815 else
816 {
817 unsigned char *ptr;
818 unsigned int ldx;
819 int block, last_block, ofs, last_ofs, chunks_this_block;
820 const int insn_chunk_size = (6 * 4);
821 const int ptr_chunk_size = (1 * 8);
822 const int entries_per_block = 160;
823 const int block_size = entries_per_block * (insn_chunk_size
824 + ptr_chunk_size);
825
826 /* Entries 32768 and higher are grouped into blocks of 160.
827 The blocks are further subdivided into 160 sequences of
828 6 instructions and 160 pointers. If a block does not require
829 the full 160 entries, let's say it requires N, then there
830 will be N sequences of 6 instructions and N pointers. */
831
832 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
833 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
834
835 block = offset / block_size;
836 last_block = max / block_size;
837 if (block != last_block)
838 {
839 chunks_this_block = 160;
840 }
841 else
842 {
843 last_ofs = max % block_size;
844 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
845 }
846
847 ofs = offset % block_size;
848
91d6fa6a 849 plt_index = (PLT64_LARGE_THRESHOLD +
22b75d0a
DM		 850 (block * 160) +
851 (ofs / insn_chunk_size));
852
853 ptr = splt->contents
854 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
855 + (block * block_size)
856 + (chunks_this_block * insn_chunk_size)
857 + (ofs / insn_chunk_size) * ptr_chunk_size;
858
859 *r_offset = (bfd_vma) (ptr - splt->contents);
860
861 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
862
863 /* mov %o7,%g5
864 call .+8
865 nop
866 ldx [%o7+P],%g1
867 jmpl %o7+%g1,%g1
868 mov %g5,%o7 */
869 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
870 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
871 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
872 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
873 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
874 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
875
876 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
877 }
878
91d6fa6a 879 return plt_index - 4;
22b75d0a
DM		 880}
881
910600e9
RS		 882/* The format of the first PLT entry in a VxWorks executable. */
883static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
884 {
885 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
886 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
887 0xc4008000, /* ld [ %g2 ], %g2 */
888 0x81c08000, /* jmp %g2 */
889 0x01000000 /* nop */
890 };
891
892/* The format of subsequent PLT entries. */
893static const bfd_vma sparc_vxworks_exec_plt_entry[] =
894 {
895 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
896 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
897 0xc2004000, /* ld [ %g1 ], %g1 */
898 0x81c04000, /* jmp %g1 */
899 0x01000000, /* nop */
900 0x03000000, /* sethi %hi(f@pltindex), %g1 */
901 0x10800000, /* b _PLT_resolve */
902 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
903 };
904
905/* The format of the first PLT entry in a VxWorks shared object. */
906static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
907 {
908 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
909 0x81c08000, /* jmp %g2 */
910 0x01000000 /* nop */
911 };
912
913/* The format of subsequent PLT entries. */
914static const bfd_vma sparc_vxworks_shared_plt_entry[] =
915 {
916 0x03000000, /* sethi %hi(f@got), %g1 */
917 0x82106000, /* or %g1, %lo(f@got), %g1 */
918 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
919 0x81c04000, /* jmp %g1 */
920 0x01000000, /* nop */
921 0x03000000, /* sethi %hi(f@pltindex), %g1 */
922 0x10800000, /* b _PLT_resolve */
923 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
924 };
925
22b75d0a
DM		 926#define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
927 htab->put_word(bfd, val, ptr)
928
22b75d0a
DM		 929#define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
930 htab->r_info(in_rel, index, type)
931
932#define SPARC_ELF_R_SYMNDX(htab, r_info) \
933 htab->r_symndx(r_info)
934
935#define SPARC_ELF_WORD_BYTES(htab) \
936 htab->bytes_per_word
937
938#define SPARC_ELF_RELA_BYTES(htab) \
939 htab->bytes_per_rela
940
941#define SPARC_ELF_DTPOFF_RELOC(htab) \
942 htab->dtpoff_reloc
943
944#define SPARC_ELF_DTPMOD_RELOC(htab) \
945 htab->dtpmod_reloc
946
947#define SPARC_ELF_TPOFF_RELOC(htab) \
948 htab->tpoff_reloc
949
950#define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
951 htab->build_plt_entry (obfd, splt, off, max, r_off)
952
953/* Create an entry in an SPARC ELF linker hash table. */
954
955static struct bfd_hash_entry *
956link_hash_newfunc (struct bfd_hash_entry *entry,
957 struct bfd_hash_table *table, const char *string)
958{
959 /* Allocate the structure if it has not already been allocated by a
960 subclass. */
961 if (entry == NULL)
962 {
963 entry = bfd_hash_allocate (table,
964 sizeof (struct _bfd_sparc_elf_link_hash_entry));
965 if (entry == NULL)
966 return entry;
967 }
968
969 /* Call the allocation method of the superclass. */
970 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
971 if (entry != NULL)
972 {
973 struct _bfd_sparc_elf_link_hash_entry *eh;
974
975 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
976 eh->dyn_relocs = NULL;
977 eh->tls_type = GOT_UNKNOWN;
978 }
979
980 return entry;
981}
982
983/* The name of the dynamic interpreter. This is put in the .interp
984 section. */
985
986#define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
987#define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
988
d0c9aeb3
DM		 989/* Compute a hash of a local hash entry. We use elf_link_hash_entry
990 for local symbol so that we can handle local STT_GNU_IFUNC symbols
991 as global symbol. We reuse indx and dynstr_index for local symbol
992 hash since they aren't used by global symbols in this backend. */
993
994static hashval_t
995elf_sparc_local_htab_hash (const void *ptr)
996{
997 struct elf_link_hash_entry *h
998 = (struct elf_link_hash_entry *) ptr;
999 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1000}
1001
1002/* Compare local hash entries. */
1003
1004static int
1005elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1006{
1007 struct elf_link_hash_entry *h1
1008 = (struct elf_link_hash_entry *) ptr1;
1009 struct elf_link_hash_entry *h2
1010 = (struct elf_link_hash_entry *) ptr2;
1011
1012 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1013}
1014
1015/* Find and/or create a hash entry for local symbol. */
1016
1017static struct elf_link_hash_entry *
1018elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1019 bfd *abfd, const Elf_Internal_Rela *rel,
1020 bfd_boolean create)
1021{
1022 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1023 asection *sec = abfd->sections;
1024 unsigned long r_symndx;
1025 hashval_t h;
1026 void **slot;
1027
1028 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1029 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1030
1031 e.elf.indx = sec->id;
1032 e.elf.dynstr_index = r_symndx;
1033 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1034 create ? INSERT : NO_INSERT);
1035
1036 if (!slot)
1037 return NULL;
1038
1039 if (*slot)
1040 {
1041 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1042 return &ret->elf;
1043 }
1044
1045 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1046 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1047 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1048 if (ret)
1049 {
1050 memset (ret, 0, sizeof (*ret));
1051 ret->elf.indx = sec->id;
1052 ret->elf.dynstr_index = r_symndx;
1053 ret->elf.dynindx = -1;
1054 ret->elf.plt.offset = (bfd_vma) -1;
1055 ret->elf.got.offset = (bfd_vma) -1;
1056 *slot = ret;
1057 }
1058 return &ret->elf;
1059}
1060
22b75d0a
DM		 1061/* Create a SPARC ELF linker hash table. */
1062
1063struct bfd_link_hash_table *
1064_bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1065{
1066 struct _bfd_sparc_elf_link_hash_table *ret;
1067 bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1068
1069 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1070 if (ret == NULL)
1071 return NULL;
1072
1073 if (ABI_64_P (abfd))
1074 {
1075 ret->put_word = sparc_put_word_64;
22b75d0a
DM		 1076 ret->r_info = sparc_elf_r_info_64;
1077 ret->r_symndx = sparc_elf_r_symndx_64;
22b75d0a
DM		 1078 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1079 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1080 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1081 ret->word_align_power = 3;
1082 ret->align_power_max = 4;
1083 ret->bytes_per_word = 8;
1084 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
c2e70a82 1085 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
22b75d0a 1086 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1087
1088 ret->build_plt_entry = sparc64_plt_entry_build;
1089 ret->plt_header_size = PLT64_HEADER_SIZE;
1090 ret->plt_entry_size = PLT64_ENTRY_SIZE;
22b75d0a
DM		 1091 }
1092 else
1093 {
1094 ret->put_word = sparc_put_word_32;
22b75d0a
DM		 1095 ret->r_info = sparc_elf_r_info_32;
1096 ret->r_symndx = sparc_elf_r_symndx_32;
22b75d0a
DM		 1097 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1098 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1099 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1100 ret->word_align_power = 2;
1101 ret->align_power_max = 3;
1102 ret->bytes_per_word = 4;
1103 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
c2e70a82 1104 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
22b75d0a 1105 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
d0c9aeb3
DM		 1106
1107 ret->build_plt_entry = sparc32_plt_entry_build;
1108 ret->plt_header_size = PLT32_HEADER_SIZE;
1109 ret->plt_entry_size = PLT32_ENTRY_SIZE;
22b75d0a
DM		 1110 }
1111
66eb6687 1112 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
4dfe6ac6
NC		 1113 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1114 SPARC_ELF_DATA))
22b75d0a
DM		 1115 {
1116 free (ret);
1117 return NULL;
1118 }
1119
d0c9aeb3
DM		 1120 ret->loc_hash_table = htab_try_create (1024,
1121 elf_sparc_local_htab_hash,
1122 elf_sparc_local_htab_eq,
1123 NULL);
1124 ret->loc_hash_memory = objalloc_create ();
1125 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1126 {
1127 free (ret);
1128 return NULL;
1129 }
1130
22b75d0a
DM		 1131 return &ret->elf.root;
1132}
1133
d0c9aeb3
DM		 1134/* Destroy a SPARC ELF linker hash table. */
1135
1136void
1137_bfd_sparc_elf_link_hash_table_free (struct bfd_link_hash_table *hash)
1138{
1139 struct _bfd_sparc_elf_link_hash_table *htab
1140 = (struct _bfd_sparc_elf_link_hash_table *) hash;
1141
1142 if (htab->loc_hash_table)
1143 htab_delete (htab->loc_hash_table);
1144 if (htab->loc_hash_memory)
1145 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
1146 _bfd_generic_link_hash_table_free (hash);
1147}
1148
22b75d0a
DM		 1149/* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1150 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1151 hash table. */
1152
1153bfd_boolean
1154_bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1155 struct bfd_link_info *info)
1156{
1157 struct _bfd_sparc_elf_link_hash_table *htab;
1158
1159 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 1160 BFD_ASSERT (htab != NULL);
1161
22b75d0a
DM		 1162 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1163 return FALSE;
1164
22b75d0a
DM		 1165 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
1166 if (!info->shared)
1167 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
1168
910600e9
RS		 1169 if (htab->is_vxworks)
1170 {
1171 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1172 return FALSE;
1173 if (info->shared)
1174 {
1175 htab->plt_header_size
1176 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1177 htab->plt_entry_size
1178 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1179 }
1180 else
1181 {
1182 htab->plt_header_size
1183 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1184 htab->plt_entry_size
1185 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1186 }
1187 }
910600e9 1188
72fbc6e5 1189 if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss
22b75d0a
DM		 1190 || (!info->shared && !htab->srelbss))
1191 abort ();
1192
1193 return TRUE;
1194}
1195
d0c9aeb3
DM		 1196static bfd_boolean
1197create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1198{
1199 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1200 struct elf_link_hash_table *htab = elf_hash_table (info);
1201 flagword flags, pltflags;
1202 asection *s;
1203
1204 if (htab->irelifunc != NULL || htab->iplt != NULL)
1205 return TRUE;
1206
1207 flags = bed->dynamic_sec_flags;
1208 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1209
1210 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1211 if (s == NULL
1212 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1213 return FALSE;
1214 htab->iplt = s;
1215
1216 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1217 flags | SEC_READONLY);
1218 if (s == NULL
1219 || ! bfd_set_section_alignment (abfd, s,
1220 bed->s->log_file_align))
1221 return FALSE;
1222 htab->irelplt = s;
1223
1224 return TRUE;
1225}
1226
22b75d0a
DM		 1227/* Copy the extra info we tack onto an elf_link_hash_entry. */
1228
1229void
fcfa13d2 1230_bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
22b75d0a
DM		 1231 struct elf_link_hash_entry *dir,
1232 struct elf_link_hash_entry *ind)
1233{
1234 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1235
1236 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1237 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1238
1239 if (eind->dyn_relocs != NULL)
1240 {
1241 if (edir->dyn_relocs != NULL)
1242 {
1243 struct _bfd_sparc_elf_dyn_relocs **pp;
1244 struct _bfd_sparc_elf_dyn_relocs *p;
1245
fcfa13d2 1246 /* Add reloc counts against the indirect sym to the direct sym
22b75d0a
DM		 1247 list. Merge any entries against the same section. */
1248 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1249 {
1250 struct _bfd_sparc_elf_dyn_relocs *q;
1251
1252 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1253 if (q->sec == p->sec)
1254 {
1255 q->pc_count += p->pc_count;
1256 q->count += p->count;
1257 *pp = p->next;
1258 break;
1259 }
1260 if (q == NULL)
1261 pp = &p->next;
1262 }
1263 *pp = edir->dyn_relocs;
1264 }
1265
1266 edir->dyn_relocs = eind->dyn_relocs;
1267 eind->dyn_relocs = NULL;
1268 }
1269
1270 if (ind->root.type == bfd_link_hash_indirect
1271 && dir->got.refcount <= 0)
1272 {
1273 edir->tls_type = eind->tls_type;
1274 eind->tls_type = GOT_UNKNOWN;
1275 }
fcfa13d2 1276 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
22b75d0a
DM		 1277}
1278
1279static int
1280sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1281 int r_type, int is_local)
1282{
1283 if (! ABI_64_P (abfd)
1284 && r_type == R_SPARC_TLS_GD_HI22
1285 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1286 r_type = R_SPARC_REV32;
1287
1288 if (info->shared)
1289 return r_type;
1290
1291 switch (r_type)
1292 {
1293 case R_SPARC_TLS_GD_HI22:
1294 if (is_local)
1295 return R_SPARC_TLS_LE_HIX22;
1296 return R_SPARC_TLS_IE_HI22;
1297 case R_SPARC_TLS_GD_LO10:
1298 if (is_local)
1299 return R_SPARC_TLS_LE_LOX10;
1300 return R_SPARC_TLS_IE_LO10;
1301 case R_SPARC_TLS_IE_HI22:
1302 if (is_local)
1303 return R_SPARC_TLS_LE_HIX22;
1304 return r_type;
1305 case R_SPARC_TLS_IE_LO10:
1306 if (is_local)
1307 return R_SPARC_TLS_LE_LOX10;
1308 return r_type;
1309 case R_SPARC_TLS_LDM_HI22:
1310 return R_SPARC_TLS_LE_HIX22;
1311 case R_SPARC_TLS_LDM_LO10:
1312 return R_SPARC_TLS_LE_LOX10;
1313 }
1314
1315 return r_type;
1316}
1317\f
1318/* Look through the relocs for a section during the first phase, and
1319 allocate space in the global offset table or procedure linkage
1320 table. */
1321
1322bfd_boolean
1323_bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1324 asection *sec, const Elf_Internal_Rela *relocs)
1325{
1326 struct _bfd_sparc_elf_link_hash_table *htab;
1327 Elf_Internal_Shdr *symtab_hdr;
1328 struct elf_link_hash_entry **sym_hashes;
22b75d0a
DM		 1329 const Elf_Internal_Rela *rel;
1330 const Elf_Internal_Rela *rel_end;
1331 asection *sreloc;
1332 int num_relocs;
1333 bfd_boolean checked_tlsgd = FALSE;
1334
1335 if (info->relocatable)
1336 return TRUE;
1337
1338 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1339 BFD_ASSERT (htab != NULL);
0ffa91dd 1340 symtab_hdr = &elf_symtab_hdr (abfd);
22b75d0a 1341 sym_hashes = elf_sym_hashes (abfd);
22b75d0a
DM		 1342
1343 sreloc = NULL;
1344
1345 if (ABI_64_P (abfd))
1346 num_relocs = NUM_SHDR_ENTRIES (& elf_section_data (sec)->rel_hdr);
1347 else
1348 num_relocs = sec->reloc_count;
0ffa91dd
NC		 1349
1350 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1351
d0c9aeb3
DM		 1352 if (htab->elf.dynobj == NULL)
1353 htab->elf.dynobj = abfd;
1354 if (!create_ifunc_sections (htab->elf.dynobj, info))
1355 return FALSE;
1356
22b75d0a
DM		 1357 rel_end = relocs + num_relocs;
1358 for (rel = relocs; rel < rel_end; rel++)
1359 {
1360 unsigned int r_type;
1361 unsigned long r_symndx;
1362 struct elf_link_hash_entry *h;
d0c9aeb3 1363 Elf_Internal_Sym *isym;
22b75d0a
DM		 1364
1365 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1366 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1367
1368 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1369 {
1370 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
1371 abfd, r_symndx);
1372 return FALSE;
1373 }
1374
d0c9aeb3 1375 isym = NULL;
22b75d0a 1376 if (r_symndx < symtab_hdr->sh_info)
d0c9aeb3
DM		 1377 {
1378 /* A local symbol. */
1379 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1380 abfd, r_symndx);
1381 if (isym == NULL)
1382 return FALSE;
1383
1384 /* Check relocation against local STT_GNU_IFUNC symbol. */
1385 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1386 {
1387 h = elf_sparc_get_local_sym_hash (htab, abfd, rel,
1388 TRUE);
1389 if (h == NULL)
1390 return FALSE;
1391
1392 /* Fake a STT_GNU_IFUNC symbol. */
1393 h->type = STT_GNU_IFUNC;
1394 h->def_regular = 1;
1395 h->ref_regular = 1;
1396 h->forced_local = 1;
1397 h->root.type = bfd_link_hash_defined;
1398 }
1399 else
1400 h = NULL;
1401 }
22b75d0a 1402 else
973a3492
L		 1403 {
1404 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1405 while (h->root.type == bfd_link_hash_indirect
1406 || h->root.type == bfd_link_hash_warning)
1407 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1408 }
22b75d0a 1409
d0c9aeb3
DM		 1410 if (h && h->type == STT_GNU_IFUNC)
1411 {
1412 if (h->def_regular)
b48ca1d4
DM		 1413 {
1414 h->ref_regular = 1;
1415 h->plt.refcount += 1;
1416 }
d0c9aeb3
DM		 1417 }
1418
22b75d0a
DM		 1419 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1420 with R_SPARC_TLS_GD_HI22. */
1421 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1422 switch (r_type)
1423 {
1424 case R_SPARC_TLS_GD_HI22:
1425 {
1426 const Elf_Internal_Rela *relt;
1427
1428 for (relt = rel + 1; relt < rel_end; relt++)
1429 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1430 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1431 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1432 break;
1433 checked_tlsgd = TRUE;
1434 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1435 }
1436 break;
1437 case R_SPARC_TLS_GD_LO10:
1438 case R_SPARC_TLS_GD_ADD:
1439 case R_SPARC_TLS_GD_CALL:
1440 checked_tlsgd = TRUE;
1441 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1442 break;
1443 }
1444
1445 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
1446 switch (r_type)
1447 {
1448 case R_SPARC_TLS_LDM_HI22:
1449 case R_SPARC_TLS_LDM_LO10:
1450 htab->tls_ldm_got.refcount += 1;
1451 break;
1452
1453 case R_SPARC_TLS_LE_HIX22:
1454 case R_SPARC_TLS_LE_LOX10:
1455 if (info->shared)
1456 goto r_sparc_plt32;
1457 break;
1458
1459 case R_SPARC_TLS_IE_HI22:
1460 case R_SPARC_TLS_IE_LO10:
1461 if (info->shared)
1462 info->flags |= DF_STATIC_TLS;
1463 /* Fall through */
1464
1465 case R_SPARC_GOT10:
1466 case R_SPARC_GOT13:
1467 case R_SPARC_GOT22:
739f7f82
DM		 1468 case R_SPARC_GOTDATA_HIX22:
1469 case R_SPARC_GOTDATA_LOX10:
1470 case R_SPARC_GOTDATA_OP_HIX22:
1471 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1472 case R_SPARC_TLS_GD_HI22:
1473 case R_SPARC_TLS_GD_LO10:
1474 /* This symbol requires a global offset table entry. */
1475 {
1476 int tls_type, old_tls_type;
1477
1478 switch (r_type)
1479 {
1480 default:
1481 case R_SPARC_GOT10:
1482 case R_SPARC_GOT13:
1483 case R_SPARC_GOT22:
739f7f82
DM		 1484 case R_SPARC_GOTDATA_OP_HIX22:
1485 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1486 tls_type = GOT_NORMAL;
1487 break;
1488 case R_SPARC_TLS_GD_HI22:
1489 case R_SPARC_TLS_GD_LO10:
1490 tls_type = GOT_TLS_GD;
1491 break;
1492 case R_SPARC_TLS_IE_HI22:
1493 case R_SPARC_TLS_IE_LO10:
1494 tls_type = GOT_TLS_IE;
1495 break;
1496 }
1497
1498 if (h != NULL)
1499 {
1500 h->got.refcount += 1;
1501 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1502 }
1503 else
1504 {
1505 bfd_signed_vma *local_got_refcounts;
1506
1507 /* This is a global offset table entry for a local symbol. */
1508 local_got_refcounts = elf_local_got_refcounts (abfd);
1509 if (local_got_refcounts == NULL)
1510 {
1511 bfd_size_type size;
1512
1513 size = symtab_hdr->sh_info;
1514 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1515 local_got_refcounts = ((bfd_signed_vma *)
1516 bfd_zalloc (abfd, size));
1517 if (local_got_refcounts == NULL)
1518 return FALSE;
1519 elf_local_got_refcounts (abfd) = local_got_refcounts;
1520 _bfd_sparc_elf_local_got_tls_type (abfd)
1521 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1522 }
00c50991
DM		 1523 switch (r_type)
1524 {
1525 case R_SPARC_GOTDATA_OP_HIX22:
1526 case R_SPARC_GOTDATA_OP_LOX10:
1527 break;
1528
1529 default:
1530 local_got_refcounts[r_symndx] += 1;
1531 break;
1532 }
22b75d0a
DM		 1533 old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1534 }
1535
1536 /* If a TLS symbol is accessed using IE at least once,
1537 there is no point to use dynamic model for it. */
1538 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1539 && (old_tls_type != GOT_TLS_GD
1540 || tls_type != GOT_TLS_IE))
1541 {
1542 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1543 tls_type = old_tls_type;
1544 else
1545 {
1546 (*_bfd_error_handler)
1547 (_("%B: `%s' accessed both as normal and thread local symbol"),
1548 abfd, h ? h->root.root.string : "<local>");
1549 return FALSE;
1550 }
1551 }
1552
1553 if (old_tls_type != tls_type)
1554 {
1555 if (h != NULL)
1556 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1557 else
1558 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1559 }
1560 }
1561
72fbc6e5 1562 if (htab->elf.sgot == NULL)
22b75d0a 1563 {
72fbc6e5 1564 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
22b75d0a
DM		 1565 return FALSE;
1566 }
1567 break;
1568
1569 case R_SPARC_TLS_GD_CALL:
1570 case R_SPARC_TLS_LDM_CALL:
1571 if (info->shared)
1572 {
1573 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1574 __tls_get_addr. */
1575 struct bfd_link_hash_entry *bh = NULL;
1576 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1577 "__tls_get_addr", 0,
1578 bfd_und_section_ptr, 0,
1579 NULL, FALSE, FALSE,
1580 &bh))
1581 return FALSE;
1582 h = (struct elf_link_hash_entry *) bh;
1583 }
1584 else
1585 break;
1586 /* Fall through */
1587
1588 case R_SPARC_PLT32:
1589 case R_SPARC_WPLT30:
1590 case R_SPARC_HIPLT22:
1591 case R_SPARC_LOPLT10:
1592 case R_SPARC_PCPLT32:
1593 case R_SPARC_PCPLT22:
1594 case R_SPARC_PCPLT10:
1595 case R_SPARC_PLT64:
1596 /* This symbol requires a procedure linkage table entry. We
1597 actually build the entry in adjust_dynamic_symbol,
1598 because this might be a case of linking PIC code without
1599 linking in any dynamic objects, in which case we don't
1600 need to generate a procedure linkage table after all. */
1601
1602 if (h == NULL)
1603 {
1604 if (! ABI_64_P (abfd))
1605 {
1606 /* The Solaris native assembler will generate a WPLT30
1607 reloc for a local symbol if you assemble a call from
1608 one section to another when using -K pic. We treat
1609 it as WDISP30. */
1610 if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
1611 goto r_sparc_plt32;
1612 break;
1613 }
af1fb11f
NC		 1614 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1615 else if (r_type == R_SPARC_WPLT30)
1616 break;
22b75d0a
DM		 1617
1618 /* It does not make sense to have a procedure linkage
1619 table entry for a local symbol. */
1620 bfd_set_error (bfd_error_bad_value);
1621 return FALSE;
1622 }
1623
1624 h->needs_plt = 1;
1625
1626 {
1627 int this_r_type;
1628
1629 this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
1630 if (this_r_type == R_SPARC_PLT32
1631 || this_r_type == R_SPARC_PLT64)
1632 goto r_sparc_plt32;
1633 }
1634 h->plt.refcount += 1;
1635 break;
1636
1637 case R_SPARC_PC10:
1638 case R_SPARC_PC22:
1639 case R_SPARC_PC_HH22:
1640 case R_SPARC_PC_HM10:
1641 case R_SPARC_PC_LM22:
1642 if (h != NULL)
1643 h->non_got_ref = 1;
1644
1645 if (h != NULL
1646 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1647 break;
1648 /* Fall through. */
1649
1650 case R_SPARC_DISP8:
1651 case R_SPARC_DISP16:
1652 case R_SPARC_DISP32:
1653 case R_SPARC_DISP64:
1654 case R_SPARC_WDISP30:
1655 case R_SPARC_WDISP22:
1656 case R_SPARC_WDISP19:
1657 case R_SPARC_WDISP16:
1658 case R_SPARC_8:
1659 case R_SPARC_16:
1660 case R_SPARC_32:
1661 case R_SPARC_HI22:
1662 case R_SPARC_22:
1663 case R_SPARC_13:
1664 case R_SPARC_LO10:
1665 case R_SPARC_UA16:
1666 case R_SPARC_UA32:
1667 case R_SPARC_10:
1668 case R_SPARC_11:
1669 case R_SPARC_64:
1670 case R_SPARC_OLO10:
1671 case R_SPARC_HH22:
1672 case R_SPARC_HM10:
1673 case R_SPARC_LM22:
1674 case R_SPARC_7:
1675 case R_SPARC_5:
1676 case R_SPARC_6:
1677 case R_SPARC_HIX22:
1678 case R_SPARC_LOX10:
1679 case R_SPARC_H44:
1680 case R_SPARC_M44:
1681 case R_SPARC_L44:
1682 case R_SPARC_UA64:
1683 if (h != NULL)
1684 h->non_got_ref = 1;
1685
1686 r_sparc_plt32:
1687 if (h != NULL && !info->shared)
1688 {
1689 /* We may need a .plt entry if the function this reloc
1690 refers to is in a shared lib. */
1691 h->plt.refcount += 1;
1692 }
1693
1694 /* If we are creating a shared library, and this is a reloc
1695 against a global symbol, or a non PC relative reloc
1696 against a local symbol, then we need to copy the reloc
1697 into the shared library. However, if we are linking with
1698 -Bsymbolic, we do not need to copy a reloc against a
1699 global symbol which is defined in an object we are
1700 including in the link (i.e., DEF_REGULAR is set). At
1701 this point we have not seen all the input files, so it is
1702 possible that DEF_REGULAR is not set now but will be set
1703 later (it is never cleared). In case of a weak definition,
1704 DEF_REGULAR may be cleared later by a strong definition in
1705 a shared library. We account for that possibility below by
1706 storing information in the relocs_copied field of the hash
1707 table entry. A similar situation occurs when creating
1708 shared libraries and symbol visibility changes render the
1709 symbol local.
1710
1711 If on the other hand, we are creating an executable, we
1712 may need to keep relocations for symbols satisfied by a
1713 dynamic library if we manage to avoid copy relocs for the
1714 symbol. */
1715 if ((info->shared
1716 && (sec->flags & SEC_ALLOC) != 0
1717 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1718 || (h != NULL
72fbc6e5 1719 && (! SYMBOLIC_BIND (info, h)
22b75d0a
DM		 1720 || h->root.type == bfd_link_hash_defweak
1721 || !h->def_regular))))
1722 || (!info->shared
1723 && (sec->flags & SEC_ALLOC) != 0
1724 && h != NULL
1725 && (h->root.type == bfd_link_hash_defweak
d0c9aeb3
DM		 1726 || !h->def_regular))
1727 || (!info->shared
1728 && h != NULL
1729 && h->type == STT_GNU_IFUNC))
22b75d0a
DM		 1730 {
1731 struct _bfd_sparc_elf_dyn_relocs *p;
1732 struct _bfd_sparc_elf_dyn_relocs **head;
1733
1734 /* When creating a shared object, we must copy these
1735 relocs into the output file. We create a reloc
1736 section in dynobj and make room for the reloc. */
1737 if (sreloc == NULL)
1738 {
83bac4b0
NC		 1739 sreloc = _bfd_elf_make_dynamic_reloc_section
1740 (sec, htab->elf.dynobj, htab->word_align_power,
1741 abfd, /*rela?*/ TRUE);
1742
22b75d0a 1743 if (sreloc == NULL)
83bac4b0 1744 return FALSE;
22b75d0a
DM		 1745 }
1746
1747 /* If this is a global symbol, we count the number of
1748 relocations we need for this symbol. */
1749 if (h != NULL)
1750 head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
1751 else
1752 {
1753 /* Track dynamic relocs needed for local syms too.
1754 We really need local syms available to do this
1755 easily. Oh well. */
22b75d0a 1756 asection *s;
6edfbbad 1757 void *vpp;
22b75d0a 1758
d0c9aeb3 1759 BFD_ASSERT (isym != NULL);
87d72d41
AM		 1760 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1761 if (s == NULL)
1762 s = sec;
1763
6edfbbad
DJ		 1764 vpp = &elf_section_data (s)->local_dynrel;
1765 head = (struct _bfd_sparc_elf_dyn_relocs **) vpp;
22b75d0a
DM		 1766 }
1767
1768 p = *head;
1769 if (p == NULL || p->sec != sec)
1770 {
1771 bfd_size_type amt = sizeof *p;
1772 p = ((struct _bfd_sparc_elf_dyn_relocs *)
1773 bfd_alloc (htab->elf.dynobj, amt));
1774 if (p == NULL)
1775 return FALSE;
1776 p->next = *head;
1777 *head = p;
1778 p->sec = sec;
1779 p->count = 0;
1780 p->pc_count = 0;
1781 }
1782
1783 p->count += 1;
1784 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1785 p->pc_count += 1;
1786 }
1787
1788 break;
1789
1790 case R_SPARC_GNU_VTINHERIT:
1791 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1792 return FALSE;
1793 break;
1794
1795 case R_SPARC_GNU_VTENTRY:
d17e0c6e
JB		 1796 BFD_ASSERT (h != NULL);
1797 if (h != NULL
1798 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
22b75d0a
DM		 1799 return FALSE;
1800 break;
1801
1802 case R_SPARC_REGISTER:
1803 /* Nothing to do. */
1804 break;
1805
1806 default:
1807 break;
1808 }
1809 }
1810
1811 return TRUE;
1812}
1813\f
1814asection *
1815_bfd_sparc_elf_gc_mark_hook (asection *sec,
1816 struct bfd_link_info *info,
1817 Elf_Internal_Rela *rel,
1818 struct elf_link_hash_entry *h,
1819 Elf_Internal_Sym *sym)
1820{
1821 if (h != NULL)
07adf181 1822 switch (SPARC_ELF_R_TYPE (rel->r_info))
22b75d0a
DM		 1823 {
1824 case R_SPARC_GNU_VTINHERIT:
1825 case R_SPARC_GNU_VTENTRY:
07adf181 1826 return NULL;
22b75d0a 1827 }
22b75d0a 1828
07adf181 1829 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
22b75d0a
DM		 1830}
1831
1832/* Update the got entry reference counts for the section being removed. */
1833bfd_boolean
1834_bfd_sparc_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
1835 asection *sec, const Elf_Internal_Rela *relocs)
1836{
1837 struct _bfd_sparc_elf_link_hash_table *htab;
1838 Elf_Internal_Shdr *symtab_hdr;
1839 struct elf_link_hash_entry **sym_hashes;
1840 bfd_signed_vma *local_got_refcounts;
1841 const Elf_Internal_Rela *rel, *relend;
1842
7dda2462
TG		 1843 if (info->relocatable)
1844 return TRUE;
1845
0ffa91dd
NC		 1846 BFD_ASSERT (is_sparc_elf (abfd) || sec->reloc_count == 0);
1847
22b75d0a
DM		 1848 elf_section_data (sec)->local_dynrel = NULL;
1849
1850 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 1851 BFD_ASSERT (htab != NULL);
0ffa91dd 1852 symtab_hdr = &elf_symtab_hdr (abfd);
22b75d0a
DM		 1853 sym_hashes = elf_sym_hashes (abfd);
1854 local_got_refcounts = elf_local_got_refcounts (abfd);
1855
1856 relend = relocs + sec->reloc_count;
1857 for (rel = relocs; rel < relend; rel++)
1858 {
1859 unsigned long r_symndx;
1860 unsigned int r_type;
1861 struct elf_link_hash_entry *h = NULL;
1862
1863 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1864 if (r_symndx >= symtab_hdr->sh_info)
1865 {
1866 struct _bfd_sparc_elf_link_hash_entry *eh;
1867 struct _bfd_sparc_elf_dyn_relocs **pp;
1868 struct _bfd_sparc_elf_dyn_relocs *p;
1869
1870 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1871 while (h->root.type == bfd_link_hash_indirect
1872 || h->root.type == bfd_link_hash_warning)
1873 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1874 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1875 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1876 if (p->sec == sec)
1877 {
1878 /* Everything must go for SEC. */
1879 *pp = p->next;
1880 break;
1881 }
1882 }
1883
1884 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1885 r_type = sparc_elf_tls_transition (info, abfd, r_type, h != NULL);
1886 switch (r_type)
1887 {
1888 case R_SPARC_TLS_LDM_HI22:
1889 case R_SPARC_TLS_LDM_LO10:
1890 if (_bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount > 0)
1891 _bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount -= 1;
1892 break;
1893
1894 case R_SPARC_TLS_GD_HI22:
1895 case R_SPARC_TLS_GD_LO10:
1896 case R_SPARC_TLS_IE_HI22:
1897 case R_SPARC_TLS_IE_LO10:
1898 case R_SPARC_GOT10:
1899 case R_SPARC_GOT13:
1900 case R_SPARC_GOT22:
739f7f82
DM		 1901 case R_SPARC_GOTDATA_HIX22:
1902 case R_SPARC_GOTDATA_LOX10:
1903 case R_SPARC_GOTDATA_OP_HIX22:
1904 case R_SPARC_GOTDATA_OP_LOX10:
22b75d0a
DM		 1905 if (h != NULL)
1906 {
1907 if (h->got.refcount > 0)
1908 h->got.refcount--;
1909 }
1910 else
1911 {
00c50991
DM		 1912 switch (r_type)
1913 {
1914 case R_SPARC_GOTDATA_OP_HIX22:
1915 case R_SPARC_GOTDATA_OP_LOX10:
1916 break;
1917
1918 default:
1919 if (local_got_refcounts[r_symndx] > 0)
1920 local_got_refcounts[r_symndx]--;
1921 break;
1922 }
22b75d0a
DM		 1923 }
1924 break;
1925
1926 case R_SPARC_PC10:
1927 case R_SPARC_PC22:
1928 case R_SPARC_PC_HH22:
1929 case R_SPARC_PC_HM10:
1930 case R_SPARC_PC_LM22:
1931 if (h != NULL
1932 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1933 break;
1934 /* Fall through. */
1935
1936 case R_SPARC_DISP8:
1937 case R_SPARC_DISP16:
1938 case R_SPARC_DISP32:
1939 case R_SPARC_DISP64:
1940 case R_SPARC_WDISP30:
1941 case R_SPARC_WDISP22:
1942 case R_SPARC_WDISP19:
1943 case R_SPARC_WDISP16:
1944 case R_SPARC_8:
1945 case R_SPARC_16:
1946 case R_SPARC_32:
1947 case R_SPARC_HI22:
1948 case R_SPARC_22:
1949 case R_SPARC_13:
1950 case R_SPARC_LO10:
1951 case R_SPARC_UA16:
1952 case R_SPARC_UA32:
1953 case R_SPARC_PLT32:
1954 case R_SPARC_10:
1955 case R_SPARC_11:
1956 case R_SPARC_64:
1957 case R_SPARC_OLO10:
1958 case R_SPARC_HH22:
1959 case R_SPARC_HM10:
1960 case R_SPARC_LM22:
1961 case R_SPARC_7:
1962 case R_SPARC_5:
1963 case R_SPARC_6:
1964 case R_SPARC_HIX22:
1965 case R_SPARC_LOX10:
1966 case R_SPARC_H44:
1967 case R_SPARC_M44:
1968 case R_SPARC_L44:
1969 case R_SPARC_UA64:
1970 if (info->shared)
1971 break;
1972 /* Fall through. */
1973
1974 case R_SPARC_WPLT30:
1975 if (h != NULL)
1976 {
1977 if (h->plt.refcount > 0)
1978 h->plt.refcount--;
1979 }
1980 break;
1981
1982 default:
1983 break;
1984 }
1985 }
1986
1987 return TRUE;
1988}
1989
1990/* Adjust a symbol defined by a dynamic object and referenced by a
1991 regular object. The current definition is in some section of the
1992 dynamic object, but we're not including those sections. We have to
1993 change the definition to something the rest of the link can
1994 understand. */
1995
1996bfd_boolean
1997_bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1998 struct elf_link_hash_entry *h)
1999{
2000 struct _bfd_sparc_elf_link_hash_table *htab;
2001 struct _bfd_sparc_elf_link_hash_entry * eh;
2002 struct _bfd_sparc_elf_dyn_relocs *p;
2003 asection *s;
22b75d0a
DM		 2004
2005 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2006 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 2007
2008 /* Make sure we know what is going on here. */
2009 BFD_ASSERT (htab->elf.dynobj != NULL
2010 && (h->needs_plt
d0c9aeb3 2011 || h->type == STT_GNU_IFUNC
22b75d0a
DM		 2012 || h->u.weakdef != NULL
2013 || (h->def_dynamic
2014 && h->ref_regular
2015 && !h->def_regular)));
2016
2017 /* If this is a function, put it in the procedure linkage table. We
2018 will fill in the contents of the procedure linkage table later
2019 (although we could actually do it here). The STT_NOTYPE
2020 condition is a hack specifically for the Oracle libraries
2021 delivered for Solaris; for some inexplicable reason, they define
2022 some of their functions as STT_NOTYPE when they really should be
2023 STT_FUNC. */
2024 if (h->type == STT_FUNC
d0c9aeb3 2025 || h->type == STT_GNU_IFUNC
22b75d0a
DM		 2026 || h->needs_plt
2027 || (h->type == STT_NOTYPE
2028 && (h->root.type == bfd_link_hash_defined
2029 || h->root.type == bfd_link_hash_defweak)
2030 && (h->root.u.def.section->flags & SEC_CODE) != 0))
2031 {
2032 if (h->plt.refcount <= 0
d0c9aeb3
DM		 2033 || (h->type != STT_GNU_IFUNC
2034 && (SYMBOL_CALLS_LOCAL (info, h)
2035 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2036 && h->root.type == bfd_link_hash_undefweak))))
22b75d0a
DM		 2037 {
2038 /* This case can occur if we saw a WPLT30 reloc in an input
2039 file, but the symbol was never referred to by a dynamic
2040 object, or if all references were garbage collected. In
2041 such a case, we don't actually need to build a procedure
2042 linkage table, and we can just do a WDISP30 reloc instead. */
2043 h->plt.offset = (bfd_vma) -1;
2044 h->needs_plt = 0;
2045 }
2046
2047 return TRUE;
2048 }
2049 else
2050 h->plt.offset = (bfd_vma) -1;
2051
2052 /* If this is a weak symbol, and there is a real definition, the
2053 processor independent code will have arranged for us to see the
2054 real definition first, and we can just use the same value. */
2055 if (h->u.weakdef != NULL)
2056 {
2057 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
2058 || h->u.weakdef->root.type == bfd_link_hash_defweak);
2059 h->root.u.def.section = h->u.weakdef->root.u.def.section;
2060 h->root.u.def.value = h->u.weakdef->root.u.def.value;
2061 return TRUE;
2062 }
2063
2064 /* This is a reference to a symbol defined by a dynamic object which
2065 is not a function. */
2066
2067 /* If we are creating a shared library, we must presume that the
2068 only references to the symbol are via the global offset table.
2069 For such cases we need not do anything here; the relocations will
2070 be handled correctly by relocate_section. */
2071 if (info->shared)
2072 return TRUE;
2073
2074 /* If there are no references to this symbol that do not use the
2075 GOT, we don't need to generate a copy reloc. */
2076 if (!h->non_got_ref)
2077 return TRUE;
2078
72fbc6e5
DM		 2079 /* If -z nocopyreloc was given, we won't generate them either. */
2080 if (info->nocopyreloc)
2081 {
2082 h->non_got_ref = 0;
2083 return TRUE;
2084 }
2085
22b75d0a
DM		 2086 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2087 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2088 {
2089 s = p->sec->output_section;
2090 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2091 break;
2092 }
2093
2094 /* If we didn't find any dynamic relocs in read-only sections, then
2095 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2096 if (p == NULL)
2097 {
2098 h->non_got_ref = 0;
2099 return TRUE;
2100 }
2101
909272ee
AM		 2102 if (h->size == 0)
2103 {
2104 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
2105 h->root.root.string);
2106 return TRUE;
2107 }
2108
22b75d0a
DM		 2109 /* We must allocate the symbol in our .dynbss section, which will
2110 become part of the .bss section of the executable. There will be
2111 an entry for this symbol in the .dynsym section. The dynamic
2112 object will contain position independent code, so all references
2113 from the dynamic object to this symbol will go through the global
2114 offset table. The dynamic linker will use the .dynsym entry to
2115 determine the address it must put in the global offset table, so
2116 both the dynamic object and the regular object will refer to the
2117 same memory location for the variable. */
2118
2119 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2120 to copy the initial value out of the dynamic object and into the
2121 runtime process image. We need to remember the offset into the
2122 .rel.bss section we are going to use. */
2123 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
2124 {
2125 htab->srelbss->size += SPARC_ELF_RELA_BYTES (htab);
2126 h->needs_copy = 1;
2127 }
2128
22b75d0a 2129 s = htab->sdynbss;
22b75d0a 2130
027297b7 2131 return _bfd_elf_adjust_dynamic_copy (h, s);
22b75d0a
DM		 2132}
2133
2134/* Allocate space in .plt, .got and associated reloc sections for
2135 dynamic relocs. */
2136
2137static bfd_boolean
2138allocate_dynrelocs (struct elf_link_hash_entry *h, PTR inf)
2139{
2140 struct bfd_link_info *info;
2141 struct _bfd_sparc_elf_link_hash_table *htab;
2142 struct _bfd_sparc_elf_link_hash_entry *eh;
2143 struct _bfd_sparc_elf_dyn_relocs *p;
2144
2145 if (h->root.type == bfd_link_hash_indirect)
2146 return TRUE;
2147
2148 if (h->root.type == bfd_link_hash_warning)
2149 /* When warning symbols are created, they **replace** the "real"
2150 entry in the hash table, thus we never get to see the real
2151 symbol in a hash traversal. So look at it now. */
2152 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2153
2154 info = (struct bfd_link_info *) inf;
2155 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2156 BFD_ASSERT (htab != NULL);
22b75d0a 2157
d0c9aeb3
DM		 2158 if ((htab->elf.dynamic_sections_created
2159 && h->plt.refcount > 0)
2160 || (h->type == STT_GNU_IFUNC
b48ca1d4
DM		 2161 && h->def_regular
2162 && h->ref_regular))
22b75d0a
DM		 2163 {
2164 /* Make sure this symbol is output as a dynamic symbol.
2165 Undefined weak syms won't yet be marked as dynamic. */
2166 if (h->dynindx == -1
2167 && !h->forced_local)
2168 {
2169 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2170 return FALSE;
2171 }
2172
d0c9aeb3 2173 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)
b48ca1d4
DM		 2174 || (h->type == STT_GNU_IFUNC
2175 && h->def_regular))
22b75d0a 2176 {
72fbc6e5 2177 asection *s = htab->elf.splt;
22b75d0a 2178
d0c9aeb3
DM		 2179 if (s == NULL)
2180 s = htab->elf.iplt;
2181
910600e9 2182 /* Allocate room for the header. */
22b75d0a 2183 if (s->size == 0)
910600e9
RS		 2184 {
2185 s->size = htab->plt_header_size;
2186
2187 /* Allocate space for the .rela.plt.unloaded relocations. */
2188 if (htab->is_vxworks && !info->shared)
2189 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2190 }
22b75d0a
DM		 2191
2192 /* The procedure linkage table size is bounded by the magnitude
2193 of the offset we can describe in the entry. */
2194 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
e8be8da4 2195 (((bfd_vma)1 << 31) << 1) : 0x400000))
22b75d0a
DM		 2196 {
2197 bfd_set_error (bfd_error_bad_value);
2198 return FALSE;
2199 }
2200
2201 if (SPARC_ELF_WORD_BYTES(htab) == 8
2202 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2203 {
2204 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2205
2206
2207 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2208
2209 h->plt.offset = (s->size - (off * 8));
2210 }
2211 else
2212 h->plt.offset = s->size;
2213
2214 /* If this symbol is not defined in a regular file, and we are
2215 not generating a shared library, then set the symbol to this
2216 location in the .plt. This is required to make function
2217 pointers compare as equal between the normal executable and
2218 the shared library. */
2219 if (! info->shared
2220 && !h->def_regular)
2221 {
2222 h->root.u.def.section = s;
2223 h->root.u.def.value = h->plt.offset;
2224 }
2225
2226 /* Make room for this entry. */
910600e9 2227 s->size += htab->plt_entry_size;
22b75d0a
DM		 2228
2229 /* We also need to make an entry in the .rela.plt section. */
d0c9aeb3
DM		 2230 if (s == htab->elf.splt)
2231 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
2232 else
2233 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
910600e9
RS		 2234
2235 if (htab->is_vxworks)
2236 {
2237 /* Allocate space for the .got.plt entry. */
72fbc6e5 2238 htab->elf.sgotplt->size += 4;
910600e9
RS		 2239
2240 /* ...and for the .rela.plt.unloaded relocations. */
2241 if (!info->shared)
2242 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2243 }
22b75d0a
DM		 2244 }
2245 else
2246 {
2247 h->plt.offset = (bfd_vma) -1;
2248 h->needs_plt = 0;
2249 }
2250 }
2251 else
2252 {
2253 h->plt.offset = (bfd_vma) -1;
2254 h->needs_plt = 0;
2255 }
2256
2257 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2258 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2259 if (h->got.refcount > 0
2260 && !info->shared
2261 && h->dynindx == -1
2262 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2263 h->got.offset = (bfd_vma) -1;
2264 else if (h->got.refcount > 0)
2265 {
2266 asection *s;
2267 bfd_boolean dyn;
2268 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2269
2270 /* Make sure this symbol is output as a dynamic symbol.
2271 Undefined weak syms won't yet be marked as dynamic. */
2272 if (h->dynindx == -1
2273 && !h->forced_local)
2274 {
2275 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2276 return FALSE;
2277 }
2278
72fbc6e5 2279 s = htab->elf.sgot;
22b75d0a
DM		 2280 h->got.offset = s->size;
2281 s->size += SPARC_ELF_WORD_BYTES (htab);
2282 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2283 if (tls_type == GOT_TLS_GD)
2284 s->size += SPARC_ELF_WORD_BYTES (htab);
2285 dyn = htab->elf.dynamic_sections_created;
2286 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2287 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
2288 global. */
2289 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
d0c9aeb3
DM		 2290 || tls_type == GOT_TLS_IE
2291 || h->type == STT_GNU_IFUNC)
72fbc6e5 2292 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a 2293 else if (tls_type == GOT_TLS_GD)
72fbc6e5 2294 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
22b75d0a 2295 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
72fbc6e5 2296 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2297 }
2298 else
2299 h->got.offset = (bfd_vma) -1;
2300
2301 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2302 if (eh->dyn_relocs == NULL)
2303 return TRUE;
2304
2305 /* In the shared -Bsymbolic case, discard space allocated for
2306 dynamic pc-relative relocs against symbols which turn out to be
2307 defined in regular objects. For the normal shared case, discard
2308 space for pc-relative relocs that have become local due to symbol
2309 visibility changes. */
2310
2311 if (info->shared)
2312 {
72fbc6e5 2313 if (SYMBOL_CALLS_LOCAL (info, h))
22b75d0a
DM		 2314 {
2315 struct _bfd_sparc_elf_dyn_relocs **pp;
2316
2317 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2318 {
2319 p->count -= p->pc_count;
2320 p->pc_count = 0;
2321 if (p->count == 0)
2322 *pp = p->next;
2323 else
2324 pp = &p->next;
2325 }
2326 }
22d606e9 2327
3348747a
NS		 2328 if (htab->is_vxworks)
2329 {
2330 struct _bfd_sparc_elf_dyn_relocs **pp;
2331
2332 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2333 {
2334 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2335 *pp = p->next;
2336 else
2337 pp = &p->next;
2338 }
2339 }
2340
22d606e9
AM		 2341 /* Also discard relocs on undefined weak syms with non-default
2342 visibility. */
2343 if (eh->dyn_relocs != NULL
2344 && h->root.type == bfd_link_hash_undefweak)
2345 {
2346 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2347 eh->dyn_relocs = NULL;
2348
2349 /* Make sure undefined weak symbols are output as a dynamic
2350 symbol in PIEs. */
2351 else if (h->dynindx == -1
2352 && !h->forced_local)
2353 {
2354 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2355 return FALSE;
2356 }
2357 }
22b75d0a
DM		 2358 }
2359 else
2360 {
2361 /* For the non-shared case, discard space for relocs against
2362 symbols which turn out to need copy relocs or are not
2363 dynamic. */
2364
2365 if (!h->non_got_ref
2366 && ((h->def_dynamic
2367 && !h->def_regular)
2368 || (htab->elf.dynamic_sections_created
2369 && (h->root.type == bfd_link_hash_undefweak
2370 || h->root.type == bfd_link_hash_undefined))))
2371 {
2372 /* Make sure this symbol is output as a dynamic symbol.
2373 Undefined weak syms won't yet be marked as dynamic. */
2374 if (h->dynindx == -1
2375 && !h->forced_local)
2376 {
2377 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2378 return FALSE;
2379 }
2380
2381 /* If that succeeded, we know we'll be keeping all the
2382 relocs. */
2383 if (h->dynindx != -1)
2384 goto keep;
2385 }
2386
2387 eh->dyn_relocs = NULL;
2388
2389 keep: ;
2390 }
2391
2392 /* Finally, allocate space. */
2393 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2394 {
2395 asection *sreloc = elf_section_data (p->sec)->sreloc;
2396 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2397 }
2398
2399 return TRUE;
2400}
2401
d0c9aeb3
DM		 2402/* Allocate space in .plt, .got and associated reloc sections for
2403 local dynamic relocs. */
2404
2405static bfd_boolean
2406allocate_local_dynrelocs (void **slot, void *inf)
2407{
2408 struct elf_link_hash_entry *h
2409 = (struct elf_link_hash_entry *) *slot;
2410
2411 if (h->type != STT_GNU_IFUNC
2412 || !h->def_regular
2413 || !h->ref_regular
2414 || !h->forced_local
2415 || h->root.type != bfd_link_hash_defined)
2416 abort ();
2417
2418 return allocate_dynrelocs (h, inf);
2419}
2420
22b75d0a
DM		 2421/* Find any dynamic relocs that apply to read-only sections. */
2422
2423static bfd_boolean
2424readonly_dynrelocs (struct elf_link_hash_entry *h, PTR inf)
2425{
2426 struct _bfd_sparc_elf_link_hash_entry *eh;
2427 struct _bfd_sparc_elf_dyn_relocs *p;
2428
2429 if (h->root.type == bfd_link_hash_warning)
2430 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2431
2432 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2433 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2434 {
2435 asection *s = p->sec->output_section;
2436
2437 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2438 {
2439 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2440
2441 info->flags |= DF_TEXTREL;
2442
2443 /* Not an error, just cut short the traversal. */
2444 return FALSE;
2445 }
2446 }
2447 return TRUE;
2448}
2449
2450/* Return true if the dynamic symbol for a given section should be
2451 omitted when creating a shared library. */
2452
2453bfd_boolean
2454_bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2455 struct bfd_link_info *info,
2456 asection *p)
2457{
2458 /* We keep the .got section symbol so that explicit relocations
2459 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2460 can be turned into relocations against the .got symbol. */
2461 if (strcmp (p->name, ".got") == 0)
2462 return FALSE;
2463
2464 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2465}
2466
2467/* Set the sizes of the dynamic sections. */
2468
2469bfd_boolean
2470_bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2471 struct bfd_link_info *info)
2472{
2473 struct _bfd_sparc_elf_link_hash_table *htab;
2474 bfd *dynobj;
2475 asection *s;
2476 bfd *ibfd;
2477
2478 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2479 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 2480 dynobj = htab->elf.dynobj;
2481 BFD_ASSERT (dynobj != NULL);
2482
2483 if (elf_hash_table (info)->dynamic_sections_created)
2484 {
2485 /* Set the contents of the .interp section to the interpreter. */
2486 if (info->executable)
2487 {
2488 s = bfd_get_section_by_name (dynobj, ".interp");
2489 BFD_ASSERT (s != NULL);
2490 s->size = htab->dynamic_interpreter_size;
2491 s->contents = (unsigned char *) htab->dynamic_interpreter;
2492 }
2493 }
2494
2495 /* Set up .got offsets for local syms, and space for local dynamic
2496 relocs. */
2497 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2498 {
2499 bfd_signed_vma *local_got;
2500 bfd_signed_vma *end_local_got;
2501 char *local_tls_type;
2502 bfd_size_type locsymcount;
2503 Elf_Internal_Shdr *symtab_hdr;
2504 asection *srel;
2505
0ffa91dd 2506 if (! is_sparc_elf (ibfd))
22b75d0a
DM		 2507 continue;
2508
2509 for (s = ibfd->sections; s != NULL; s = s->next)
2510 {
2511 struct _bfd_sparc_elf_dyn_relocs *p;
2512
6edfbbad 2513 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
22b75d0a
DM		 2514 {
2515 if (!bfd_is_abs_section (p->sec)
2516 && bfd_is_abs_section (p->sec->output_section))
2517 {
2518 /* Input section has been discarded, either because
2519 it is a copy of a linkonce section or due to
2520 linker script /DISCARD/, so we'll be discarding
2521 the relocs too. */
2522 }
3348747a
NS		 2523 else if (htab->is_vxworks
2524 && strcmp (p->sec->output_section->name,
2525 ".tls_vars") == 0)
2526 {
2527 /* Relocations in vxworks .tls_vars sections are
2528 handled specially by the loader. */
2529 }
22b75d0a
DM		 2530 else if (p->count != 0)
2531 {
2532 srel = elf_section_data (p->sec)->sreloc;
d0c9aeb3
DM		 2533 if (!htab->elf.dynamic_sections_created)
2534 srel = htab->elf.irelplt;
22b75d0a
DM		 2535 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2536 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2537 info->flags |= DF_TEXTREL;
2538 }
2539 }
2540 }
2541
2542 local_got = elf_local_got_refcounts (ibfd);
2543 if (!local_got)
2544 continue;
2545
0ffa91dd 2546 symtab_hdr = &elf_symtab_hdr (ibfd);
22b75d0a
DM		 2547 locsymcount = symtab_hdr->sh_info;
2548 end_local_got = local_got + locsymcount;
2549 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
72fbc6e5
DM		 2550 s = htab->elf.sgot;
2551 srel = htab->elf.srelgot;
22b75d0a
DM		 2552 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2553 {
2554 if (*local_got > 0)
2555 {
2556 *local_got = s->size;
2557 s->size += SPARC_ELF_WORD_BYTES (htab);
2558 if (*local_tls_type == GOT_TLS_GD)
2559 s->size += SPARC_ELF_WORD_BYTES (htab);
2560 if (info->shared
2561 || *local_tls_type == GOT_TLS_GD
2562 || *local_tls_type == GOT_TLS_IE)
2563 srel->size += SPARC_ELF_RELA_BYTES (htab);
2564 }
2565 else
2566 *local_got = (bfd_vma) -1;
2567 }
2568 }
2569
2570 if (htab->tls_ldm_got.refcount > 0)
2571 {
2572 /* Allocate 2 got entries and 1 dynamic reloc for
2573 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
72fbc6e5
DM		 2574 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2575 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2576 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
22b75d0a
DM		 2577 }
2578 else
2579 htab->tls_ldm_got.offset = -1;
2580
2581 /* Allocate global sym .plt and .got entries, and space for global
2582 sym dynamic relocs. */
2583 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info);
2584
d0c9aeb3
DM		 2585 /* Allocate .plt and .got entries, and space for local symbols. */
2586 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2587
22b75d0a 2588 if (! ABI_64_P (output_bfd)
910600e9 2589 && !htab->is_vxworks
22b75d0a
DM		 2590 && elf_hash_table (info)->dynamic_sections_created)
2591 {
2592 /* Make space for the trailing nop in .plt. */
72fbc6e5
DM		 2593 if (htab->elf.splt->size > 0)
2594 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
22b75d0a
DM		 2595
2596 /* If the .got section is more than 0x1000 bytes, we add
2597 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2598 bit relocations have a greater chance of working.
2599
2600 FIXME: Make this optimization work for 64-bit too. */
72fbc6e5 2601 if (htab->elf.sgot->size >= 0x1000
22b75d0a
DM		 2602 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2603 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2604 }
2605
2606 /* The check_relocs and adjust_dynamic_symbol entry points have
2607 determined the sizes of the various dynamic sections. Allocate
2608 memory for them. */
2609 for (s = dynobj->sections; s != NULL; s = s->next)
2610 {
22b75d0a
DM		 2611 if ((s->flags & SEC_LINKER_CREATED) == 0)
2612 continue;
2613
72fbc6e5
DM		 2614 if (s == htab->elf.splt
2615 || s == htab->elf.sgot
910600e9 2616 || s == htab->sdynbss
d0c9aeb3 2617 || s == htab->elf.iplt
72fbc6e5 2618 || s == htab->elf.sgotplt)
22b75d0a 2619 {
c456f082
AM		 2620 /* Strip this section if we don't need it; see the
2621 comment below. */
2622 }
0112cd26 2623 else if (CONST_STRNEQ (s->name, ".rela"))
c456f082
AM		 2624 {
2625 if (s->size != 0)
22b75d0a
DM		 2626 {
2627 /* We use the reloc_count field as a counter if we need
2628 to copy relocs into the output file. */
2629 s->reloc_count = 0;
2630 }
2631 }
c456f082 2632 else
22b75d0a 2633 {
c456f082 2634 /* It's not one of our sections. */
22b75d0a
DM		 2635 continue;
2636 }
2637
c456f082 2638 if (s->size == 0)
22b75d0a 2639 {
c456f082
AM		 2640 /* If we don't need this section, strip it from the
2641 output file. This is mostly to handle .rela.bss and
2642 .rela.plt. We must create both sections in
2643 create_dynamic_sections, because they must be created
2644 before the linker maps input sections to output
2645 sections. The linker does that before
2646 adjust_dynamic_symbol is called, and it is that
2647 function which decides whether anything needs to go
2648 into these sections. */
8423293d 2649 s->flags |= SEC_EXCLUDE;
22b75d0a
DM		 2650 continue;
2651 }
2652
c456f082
AM		 2653 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2654 continue;
2655
22b75d0a
DM		 2656 /* Allocate memory for the section contents. Zero the memory
2657 for the benefit of .rela.plt, which has 4 unused entries
2658 at the beginning, and we don't want garbage. */
2659 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
c456f082 2660 if (s->contents == NULL)
22b75d0a
DM		 2661 return FALSE;
2662 }
2663
2664 if (elf_hash_table (info)->dynamic_sections_created)
2665 {
2666 /* Add some entries to the .dynamic section. We fill in the
2667 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2668 must add the entries now so that we get the correct size for
2669 the .dynamic section. The DT_DEBUG entry is filled in by the
2670 dynamic linker and used by the debugger. */
2671#define add_dynamic_entry(TAG, VAL) \
2672 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2673
2674 if (info->executable)
2675 {
2676 if (!add_dynamic_entry (DT_DEBUG, 0))
2677 return FALSE;
2678 }
2679
72fbc6e5 2680 if (htab->elf.srelplt->size != 0)
22b75d0a
DM		 2681 {
2682 if (!add_dynamic_entry (DT_PLTGOT, 0)
2683 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2684 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2685 || !add_dynamic_entry (DT_JMPREL, 0))
2686 return FALSE;
2687 }
2688
2689 if (!add_dynamic_entry (DT_RELA, 0)
2690 || !add_dynamic_entry (DT_RELASZ, 0)
2691 || !add_dynamic_entry (DT_RELAENT,
2692 SPARC_ELF_RELA_BYTES (htab)))
2693 return FALSE;
2694
2695 /* If any dynamic relocs apply to a read-only section,
2696 then we need a DT_TEXTREL entry. */
2697 if ((info->flags & DF_TEXTREL) == 0)
2698 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
2699 (PTR) info);
2700
2701 if (info->flags & DF_TEXTREL)
2702 {
2703 if (!add_dynamic_entry (DT_TEXTREL, 0))
2704 return FALSE;
2705 }
2706
2707 if (ABI_64_P (output_bfd))
2708 {
2709 int reg;
2710 struct _bfd_sparc_elf_app_reg * app_regs;
2711 struct elf_strtab_hash *dynstr;
2712 struct elf_link_hash_table *eht = elf_hash_table (info);
2713
2714 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2715 entries if needed. */
2716 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2717 dynstr = eht->dynstr;
2718
2719 for (reg = 0; reg < 4; reg++)
2720 if (app_regs [reg].name != NULL)
2721 {
2722 struct elf_link_local_dynamic_entry *entry, *e;
2723
2724 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2725 return FALSE;
2726
2727 entry = (struct elf_link_local_dynamic_entry *)
2728 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2729 if (entry == NULL)
2730 return FALSE;
2731
2732 /* We cheat here a little bit: the symbol will not be local, so we
2733 put it at the end of the dynlocal linked list. We will fix it
2734 later on, as we have to fix other fields anyway. */
2735 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2736 entry->isym.st_size = 0;
2737 if (*app_regs [reg].name != '\0')
2738 entry->isym.st_name
2739 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2740 else
2741 entry->isym.st_name = 0;
2742 entry->isym.st_other = 0;
2743 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2744 STT_REGISTER);
2745 entry->isym.st_shndx = app_regs [reg].shndx;
2746 entry->next = NULL;
2747 entry->input_bfd = output_bfd;
2748 entry->input_indx = -1;
2749
2750 if (eht->dynlocal == NULL)
2751 eht->dynlocal = entry;
2752 else
2753 {
2754 for (e = eht->dynlocal; e->next; e = e->next)
2755 ;
2756 e->next = entry;
2757 }
2758 eht->dynsymcount++;
2759 }
2760 }
7a2b07ff
NS		 2761 if (htab->is_vxworks
2762 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2763 return FALSE;
22b75d0a
DM		 2764 }
2765#undef add_dynamic_entry
2766
2767 return TRUE;
2768}
2769\f
2770bfd_boolean
2771_bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2772{
f592407e
AM		 2773 if (!sec->used_by_bfd)
2774 {
2775 struct _bfd_sparc_elf_section_data *sdata;
2776 bfd_size_type amt = sizeof (*sdata);
22b75d0a 2777
f592407e
AM		 2778 sdata = bfd_zalloc (abfd, amt);
2779 if (sdata == NULL)
2780 return FALSE;
2781 sec->used_by_bfd = sdata;
2782 }
22b75d0a
DM		 2783
2784 return _bfd_elf_new_section_hook (abfd, sec);
2785}
2786
2787bfd_boolean
2788_bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2789 struct bfd_section *section,
2790 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2791 bfd_boolean *again)
2792{
c8a1f254
NS		 2793 if (link_info->relocatable)
2794 (*link_info->callbacks->einfo)
2795 (_("%P%F: --relax and -r may not be used together\n"));
2796
22b75d0a
DM		 2797 *again = FALSE;
2798 sec_do_relax (section) = 1;
2799 return TRUE;
2800}
2801\f
2802/* Return the base VMA address which should be subtracted from real addresses
2803 when resolving @dtpoff relocation.
2804 This is PT_TLS segment p_vaddr. */
2805
2806static bfd_vma
2807dtpoff_base (struct bfd_link_info *info)
2808{
2809 /* If tls_sec is NULL, we should have signalled an error already. */
2810 if (elf_hash_table (info)->tls_sec == NULL)
2811 return 0;
2812 return elf_hash_table (info)->tls_sec->vma;
2813}
2814
2815/* Return the relocation value for @tpoff relocation
2816 if STT_TLS virtual address is ADDRESS. */
2817
2818static bfd_vma
2819tpoff (struct bfd_link_info *info, bfd_vma address)
2820{
2821 struct elf_link_hash_table *htab = elf_hash_table (info);
2822
2823 /* If tls_sec is NULL, we should have signalled an error already. */
2824 if (htab->tls_sec == NULL)
2825 return 0;
2826 return address - htab->tls_size - htab->tls_sec->vma;
2827}
2828
00c50991
DM		 2829/* Return the relocation value for a %gdop relocation. */
2830
2831static bfd_vma
2832gdopoff (struct bfd_link_info *info, bfd_vma address)
2833{
2834 struct elf_link_hash_table *htab = elf_hash_table (info);
2835 bfd_vma got_base;
2836
2837 got_base = (htab->hgot->root.u.def.value
2838 + htab->hgot->root.u.def.section->output_offset
2839 + htab->hgot->root.u.def.section->output_section->vma);
2840
2841 return address - got_base;
2842}
2843
22b75d0a
DM		 2844/* Relocate a SPARC ELF section. */
2845
2846bfd_boolean
ab96bf03
AM		 2847_bfd_sparc_elf_relocate_section (bfd *output_bfd,
2848 struct bfd_link_info *info,
2849 bfd *input_bfd,
2850 asection *input_section,
2851 bfd_byte *contents,
2852 Elf_Internal_Rela *relocs,
2853 Elf_Internal_Sym *local_syms,
2854 asection **local_sections)
22b75d0a
DM		 2855{
2856 struct _bfd_sparc_elf_link_hash_table *htab;
2857 Elf_Internal_Shdr *symtab_hdr;
2858 struct elf_link_hash_entry **sym_hashes;
2859 bfd_vma *local_got_offsets;
2860 bfd_vma got_base;
2861 asection *sreloc;
2862 Elf_Internal_Rela *rel;
2863 Elf_Internal_Rela *relend;
2864 int num_relocs;
3348747a 2865 bfd_boolean is_vxworks_tls;
22b75d0a 2866
22b75d0a 2867 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 2868 BFD_ASSERT (htab != NULL);
0ffa91dd 2869 symtab_hdr = &elf_symtab_hdr (input_bfd);
22b75d0a
DM		 2870 sym_hashes = elf_sym_hashes (input_bfd);
2871 local_got_offsets = elf_local_got_offsets (input_bfd);
2872
2873 if (elf_hash_table (info)->hgot == NULL)
2874 got_base = 0;
2875 else
2876 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2877
2878 sreloc = elf_section_data (input_section)->sreloc;
3348747a
NS		 2879 /* We have to handle relocations in vxworks .tls_vars sections
2880 specially, because the dynamic loader is 'weird'. */
2881 is_vxworks_tls = (htab->is_vxworks && info->shared
2882 && !strcmp (input_section->output_section->name,
2883 ".tls_vars"));
22b75d0a
DM		 2884
2885 rel = relocs;
2886 if (ABI_64_P (output_bfd))
2887 num_relocs = NUM_SHDR_ENTRIES (& elf_section_data (input_section)->rel_hdr);
2888 else
2889 num_relocs = input_section->reloc_count;
2890 relend = relocs + num_relocs;
2891 for (; rel < relend; rel++)
2892 {
2893 int r_type, tls_type;
2894 reloc_howto_type *howto;
2895 unsigned long r_symndx;
2896 struct elf_link_hash_entry *h;
2897 Elf_Internal_Sym *sym;
2898 asection *sec;
2899 bfd_vma relocation, off;
2900 bfd_reloc_status_type r;
2901 bfd_boolean is_plt = FALSE;
2902 bfd_boolean unresolved_reloc;
2903
2904 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2905 if (r_type == R_SPARC_GNU_VTINHERIT
2906 || r_type == R_SPARC_GNU_VTENTRY)
2907 continue;
2908
2909 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2910 {
2911 bfd_set_error (bfd_error_bad_value);
2912 return FALSE;
2913 }
2914 howto = _bfd_sparc_elf_howto_table + r_type;
2915
22b75d0a
DM		 2916 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2917 h = NULL;
2918 sym = NULL;
2919 sec = NULL;
2920 unresolved_reloc = FALSE;
2921 if (r_symndx < symtab_hdr->sh_info)
2922 {
2923 sym = local_syms + r_symndx;
2924 sec = local_sections[r_symndx];
2925 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
d0c9aeb3
DM		 2926
2927 if (!info->relocatable
2928 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2929 {
2930 /* Relocate against local STT_GNU_IFUNC symbol. */
2931 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
2932 rel, FALSE);
2933 if (h == NULL)
2934 abort ();
2935
2936 /* Set STT_GNU_IFUNC symbol value. */
2937 h->root.u.def.value = sym->st_value;
2938 h->root.u.def.section = sec;
2939 }
22b75d0a
DM		 2940 }
2941 else
2942 {
2943 bfd_boolean warned;
2944
2945 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2946 r_symndx, symtab_hdr, sym_hashes,
2947 h, sec, relocation,
2948 unresolved_reloc, warned);
2949 if (warned)
2950 {
2951 /* To avoid generating warning messages about truncated
2952 relocations, set the relocation's address to be the same as
2953 the start of this section. */
2954 if (input_section->output_section != NULL)
2955 relocation = input_section->output_section->vma;
2956 else
2957 relocation = 0;
2958 }
2959 }
2960
ab96bf03
AM		 2961 if (sec != NULL && elf_discarded_section (sec))
2962 {
2963 /* For relocs against symbols from removed linkonce
2964 sections, or sections discarded by a linker script, we
2965 just want the section contents zeroed. Avoid any
2966 special processing. */
2967 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
2968 rel->r_info = 0;
2969 rel->r_addend = 0;
2970 continue;
2971 }
2972
2973 if (info->relocatable)
2974 continue;
2975
d0c9aeb3
DM		 2976 if (h != NULL
2977 && h->type == STT_GNU_IFUNC
2978 && h->def_regular)
2979 {
2980 asection *plt_sec;
2981 const char *name;
2982
2983 if ((input_section->flags & SEC_ALLOC) == 0
2984 || h->plt.offset == (bfd_vma) -1)
2985 abort ();
2986
2987 plt_sec = htab->elf.splt;
2988 if (! plt_sec)
2989 plt_sec =htab->elf.iplt;
2990
2991 switch (r_type)
2992 {
00c50991
DM		 2993 case R_SPARC_GOTDATA_OP:
2994 continue;
2995
d0c9aeb3
DM		 2996 case R_SPARC_GOTDATA_OP_HIX22:
2997 case R_SPARC_GOTDATA_OP_LOX10:
00c50991
DM		 2998 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
2999 ? R_SPARC_GOT22
3000 : R_SPARC_GOT10);
3001 howto = _bfd_sparc_elf_howto_table + r_type;
3002 /* Fall through. */
3003
d0c9aeb3
DM		 3004 case R_SPARC_GOT10:
3005 case R_SPARC_GOT13:
3006 case R_SPARC_GOT22:
3007 if (htab->elf.sgot == NULL)
3008 abort ();
3009 off = h->got.offset;
3010 if (off == (bfd_vma) -1)
3011 abort();
3012 relocation = htab->elf.sgot->output_offset + off - got_base;
3013 goto do_relocation;
3014
3015 case R_SPARC_WPLT30:
3016 case R_SPARC_WDISP30:
3017 relocation = (plt_sec->output_section->vma
3018 + plt_sec->output_offset + h->plt.offset);
3019 goto do_relocation;
3020
3021 case R_SPARC_32:
3022 case R_SPARC_64:
3023 if (info->shared && h->non_got_ref)
3024 {
3025 Elf_Internal_Rela outrel;
3026 bfd_vma offset;
3027
3028 offset = _bfd_elf_section_offset (output_bfd, info,
3029 input_section,
3030 rel->r_offset);
3031 if (offset == (bfd_vma) -1
3032 || offset == (bfd_vma) -2)
3033 abort();
3034
3035 outrel.r_offset = (input_section->output_section->vma
3036 + input_section->output_offset
3037 + offset);
3038
3039 if (h->dynindx == -1
3040 || h->forced_local
3041 || info->executable)
3042 {
3043 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3044 0, R_SPARC_IRELATIVE);
3045 outrel.r_addend = relocation + rel->r_addend;
3046 }
3047 else
3048 {
3049 if (h->dynindx == -1)
3050 abort();
3051 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3052 outrel.r_addend = rel->r_addend;
3053 }
3054
3055 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3056 continue;
3057 }
3058
3059 relocation = (plt_sec->output_section->vma
3060 + plt_sec->output_offset + h->plt.offset);
3061 goto do_relocation;
3062
3063 case R_SPARC_HI22:
3064 case R_SPARC_LO10:
3065 /* We should only see such relocs in static links. */
3066 if (info->shared)
3067 abort();
3068 relocation = (plt_sec->output_section->vma
3069 + plt_sec->output_offset + h->plt.offset);
3070 goto do_relocation;
3071
3072 default:
3073 if (h->root.root.string)
3074 name = h->root.root.string;
3075 else
3076 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3077 NULL);
3078 (*_bfd_error_handler)
3079 (_("%B: relocation %s against STT_GNU_IFUNC "
3080 "symbol `%s' isn't handled by %s"), input_bfd,
3081 _bfd_sparc_elf_howto_table[r_type].name,
3082 name, __FUNCTION__);
3083 bfd_set_error (bfd_error_bad_value);
3084 return FALSE;
3085 }
3086 }
3087
22b75d0a
DM		 3088 switch (r_type)
3089 {
739f7f82
DM		 3090 case R_SPARC_GOTDATA_OP_HIX22:
3091 case R_SPARC_GOTDATA_OP_LOX10:
00c50991
DM		 3092 if (SYMBOL_REFERENCES_LOCAL (info, h))
3093 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3094 ? R_SPARC_GOTDATA_HIX22
3095 : R_SPARC_GOTDATA_LOX10);
739f7f82 3096 else
00c50991
DM		 3097 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3098 ? R_SPARC_GOT22
3099 : R_SPARC_GOT10);
3100 howto = _bfd_sparc_elf_howto_table + r_type;
3101 break;
3102
3103 case R_SPARC_GOTDATA_OP:
3104 if (SYMBOL_REFERENCES_LOCAL (info, h))
3105 {
3106 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3107
3108 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3109 relocation = 0x80000000 | (insn & 0x3e07c01f);
3110 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3111 }
3112 continue;
3113 }
3114
3115 switch (r_type)
3116 {
3117 case R_SPARC_GOTDATA_HIX22:
3118 case R_SPARC_GOTDATA_LOX10:
3119 relocation = gdopoff (info, relocation);
3120 break;
739f7f82 3121
22b75d0a
DM		 3122 case R_SPARC_GOT10:
3123 case R_SPARC_GOT13:
3124 case R_SPARC_GOT22:
3125 /* Relocation is to the entry for this symbol in the global
3126 offset table. */
72fbc6e5 3127 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3128 abort ();
3129
3130 if (h != NULL)
3131 {
3132 bfd_boolean dyn;
3133
3134 off = h->got.offset;
3135 BFD_ASSERT (off != (bfd_vma) -1);
3136 dyn = elf_hash_table (info)->dynamic_sections_created;
3137
3138 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
3139 || (info->shared
72fbc6e5 3140 && SYMBOL_REFERENCES_LOCAL (info, h)))
22b75d0a
DM		 3141 {
3142 /* This is actually a static link, or it is a
3143 -Bsymbolic link and the symbol is defined
3144 locally, or the symbol was forced to be local
3145 because of a version file. We must initialize
3146 this entry in the global offset table. Since the
3147 offset must always be a multiple of 8 for 64-bit
3148 and 4 for 32-bit, we use the least significant bit
3149 to record whether we have initialized it already.
3150
3151 When doing a dynamic link, we create a .rela.got
3152 relocation entry to initialize the value. This
3153 is done in the finish_dynamic_symbol routine. */
3154 if ((off & 1) != 0)
3155 off &= ~1;
3156 else
3157 {
3158 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
72fbc6e5 3159 htab->elf.sgot->contents + off);
22b75d0a
DM		 3160 h->got.offset |= 1;
3161 }
3162 }
3163 else
3164 unresolved_reloc = FALSE;
3165 }
3166 else
3167 {
3168 BFD_ASSERT (local_got_offsets != NULL
3169 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3170
3171 off = local_got_offsets[r_symndx];
3172
3173 /* The offset must always be a multiple of 8 on 64-bit and
3174 4 on 32-bit. We use the least significant bit to record
3175 whether we have already processed this entry. */
3176 if ((off & 1) != 0)
3177 off &= ~1;
3178 else
3179 {
3180
3181 if (info->shared)
3182 {
3183 asection *s;
3184 Elf_Internal_Rela outrel;
3185
3186 /* We need to generate a R_SPARC_RELATIVE reloc
3187 for the dynamic linker. */
72fbc6e5 3188 s = htab->elf.srelgot;
22b75d0a
DM		 3189 BFD_ASSERT (s != NULL);
3190
72fbc6e5
DM		 3191 outrel.r_offset = (htab->elf.sgot->output_section->vma
3192 + htab->elf.sgot->output_offset
22b75d0a
DM		 3193 + off);
3194 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3195 0, R_SPARC_RELATIVE);
3196 outrel.r_addend = relocation;
3197 relocation = 0;
39817122 3198 sparc_elf_append_rela (output_bfd, s, &outrel);
22b75d0a
DM		 3199 }
3200
3201 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
72fbc6e5 3202 htab->elf.sgot->contents + off);
22b75d0a
DM		 3203 local_got_offsets[r_symndx] |= 1;
3204 }
3205 }
72fbc6e5 3206 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3207 break;
3208
3209 case R_SPARC_PLT32:
3210 case R_SPARC_PLT64:
3211 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3212 {
3213 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3214 goto r_sparc_plt32;
3215 }
3216 /* Fall through. */
3217
3218 case R_SPARC_WPLT30:
3219 case R_SPARC_HIPLT22:
3220 case R_SPARC_LOPLT10:
3221 case R_SPARC_PCPLT32:
3222 case R_SPARC_PCPLT22:
3223 case R_SPARC_PCPLT10:
3224 r_sparc_wplt30:
3225 /* Relocation is to the entry for this symbol in the
3226 procedure linkage table. */
3227
3228 if (! ABI_64_P (output_bfd))
3229 {
3230 /* The Solaris native assembler will generate a WPLT30 reloc
3231 for a local symbol if you assemble a call from one
3232 section to another when using -K pic. We treat it as
3233 WDISP30. */
3234 if (h == NULL)
3235 break;
3236 }
af1fb11f
NC		 3237 /* PR 7027: We need similar behaviour for 64-bit binaries. */
3238 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3239 break;
22b75d0a
DM		 3240 else
3241 {
3242 BFD_ASSERT (h != NULL);
3243 }
3244
72fbc6e5 3245 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
22b75d0a
DM		 3246 {
3247 /* We didn't make a PLT entry for this symbol. This
3248 happens when statically linking PIC code, or when
3249 using -Bsymbolic. */
3250 break;
3251 }
3252
72fbc6e5
DM		 3253 relocation = (htab->elf.splt->output_section->vma
3254 + htab->elf.splt->output_offset
22b75d0a
DM		 3255 + h->plt.offset);
3256 unresolved_reloc = FALSE;
3257 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3258 {
3259 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3260 is_plt = TRUE;
3261 goto r_sparc_plt32;
3262 }
3263 break;
3264
3265 case R_SPARC_PC10:
3266 case R_SPARC_PC22:
3267 case R_SPARC_PC_HH22:
3268 case R_SPARC_PC_HM10:
3269 case R_SPARC_PC_LM22:
3270 if (h != NULL
3271 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3272 break;
3273 /* Fall through. */
3274 case R_SPARC_DISP8:
3275 case R_SPARC_DISP16:
3276 case R_SPARC_DISP32:
3277 case R_SPARC_DISP64:
3278 case R_SPARC_WDISP30:
3279 case R_SPARC_WDISP22:
3280 case R_SPARC_WDISP19:
3281 case R_SPARC_WDISP16:
3282 case R_SPARC_8:
3283 case R_SPARC_16:
3284 case R_SPARC_32:
3285 case R_SPARC_HI22:
3286 case R_SPARC_22:
3287 case R_SPARC_13:
3288 case R_SPARC_LO10:
3289 case R_SPARC_UA16:
3290 case R_SPARC_UA32:
3291 case R_SPARC_10:
3292 case R_SPARC_11:
3293 case R_SPARC_64:
3294 case R_SPARC_OLO10:
3295 case R_SPARC_HH22:
3296 case R_SPARC_HM10:
3297 case R_SPARC_LM22:
3298 case R_SPARC_7:
3299 case R_SPARC_5:
3300 case R_SPARC_6:
3301 case R_SPARC_HIX22:
3302 case R_SPARC_LOX10:
3303 case R_SPARC_H44:
3304 case R_SPARC_M44:
3305 case R_SPARC_L44:
3306 case R_SPARC_UA64:
3307 r_sparc_plt32:
3348747a
NS		 3308 if ((input_section->flags & SEC_ALLOC) == 0
3309 || is_vxworks_tls)
22b75d0a
DM		 3310 break;
3311
3312 if ((info->shared
3313 && (h == NULL
3314 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3315 || h->root.type != bfd_link_hash_undefweak)
3316 && (! howto->pc_relative
72fbc6e5 3317 || !SYMBOL_CALLS_LOCAL (info, h)))
22b75d0a
DM		 3318 || (!info->shared
3319 && h != NULL
3320 && h->dynindx != -1
3321 && !h->non_got_ref
3322 && ((h->def_dynamic
3323 && !h->def_regular)
3324 || h->root.type == bfd_link_hash_undefweak
3325 || h->root.type == bfd_link_hash_undefined)))
3326 {
3327 Elf_Internal_Rela outrel;
3328 bfd_boolean skip, relocate = FALSE;
3329
3330 /* When generating a shared object, these relocations
3331 are copied into the output file to be resolved at run
3332 time. */
3333
3334 BFD_ASSERT (sreloc != NULL);
3335
3336 skip = FALSE;
3337
3338 outrel.r_offset =
3339 _bfd_elf_section_offset (output_bfd, info, input_section,
3340 rel->r_offset);
3341 if (outrel.r_offset == (bfd_vma) -1)
3342 skip = TRUE;
3343 else if (outrel.r_offset == (bfd_vma) -2)
3344 skip = TRUE, relocate = TRUE;
3345 outrel.r_offset += (input_section->output_section->vma
3346 + input_section->output_offset);
3347
3348 /* Optimize unaligned reloc usage now that we know where
3349 it finally resides. */
3350 switch (r_type)
3351 {
3352 case R_SPARC_16:
3353 if (outrel.r_offset & 1)
3354 r_type = R_SPARC_UA16;
3355 break;
3356 case R_SPARC_UA16:
3357 if (!(outrel.r_offset & 1))
3358 r_type = R_SPARC_16;
3359 break;
3360 case R_SPARC_32:
3361 if (outrel.r_offset & 3)
3362 r_type = R_SPARC_UA32;
3363 break;
3364 case R_SPARC_UA32:
3365 if (!(outrel.r_offset & 3))
3366 r_type = R_SPARC_32;
3367 break;
3368 case R_SPARC_64:
3369 if (outrel.r_offset & 7)
3370 r_type = R_SPARC_UA64;
3371 break;
3372 case R_SPARC_UA64:
3373 if (!(outrel.r_offset & 7))
3374 r_type = R_SPARC_64;
3375 break;
3376 case R_SPARC_DISP8:
3377 case R_SPARC_DISP16:
3378 case R_SPARC_DISP32:
3379 case R_SPARC_DISP64:
3380 /* If the symbol is not dynamic, we should not keep
3381 a dynamic relocation. But an .rela.* slot has been
3382 allocated for it, output R_SPARC_NONE.
3383 FIXME: Add code tracking needed dynamic relocs as
3384 e.g. i386 has. */
3385 if (h->dynindx == -1)
3386 skip = TRUE, relocate = TRUE;
3387 break;
3388 }
3389
3390 if (skip)
3391 memset (&outrel, 0, sizeof outrel);
3392 /* h->dynindx may be -1 if the symbol was marked to
3393 become local. */
72fbc6e5
DM		 3394 else if (h != NULL &&
3395 h->dynindx != -1
3396 && (! is_plt
3397 || !info->shared
3398 || !SYMBOLIC_BIND (info, h)
22b75d0a
DM		 3399 || !h->def_regular))
3400 {
3401 BFD_ASSERT (h->dynindx != -1);
3402 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3403 outrel.r_addend = rel->r_addend;
3404 }
3405 else
3406 {
3407 if (r_type == R_SPARC_32 || r_type == R_SPARC_64)
3408 {
3409 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3410 0, R_SPARC_RELATIVE);
3411 outrel.r_addend = relocation + rel->r_addend;
3412 }
3413 else
3414 {
3415 long indx;
3416
74541ad4
AM		 3417 outrel.r_addend = relocation + rel->r_addend;
3418
22b75d0a 3419 if (is_plt)
72fbc6e5 3420 sec = htab->elf.splt;
22b75d0a
DM		 3421
3422 if (bfd_is_abs_section (sec))
3423 indx = 0;
3424 else if (sec == NULL || sec->owner == NULL)
3425 {
3426 bfd_set_error (bfd_error_bad_value);
3427 return FALSE;
3428 }
3429 else
3430 {
3431 asection *osec;
3432
74541ad4
AM		 3433 /* We are turning this relocation into one
3434 against a section symbol. It would be
3435 proper to subtract the symbol's value,
3436 osec->vma, from the emitted reloc addend,
3437 but ld.so expects buggy relocs. */
22b75d0a
DM		 3438 osec = sec->output_section;
3439 indx = elf_section_data (osec)->dynindx;
3440
74541ad4
AM		 3441 if (indx == 0)
3442 {
3443 osec = htab->elf.text_index_section;
3444 indx = elf_section_data (osec)->dynindx;
3445 }
3446
22b75d0a
DM		 3447 /* FIXME: we really should be able to link non-pic
3448 shared libraries. */
3449 if (indx == 0)
3450 {
3451 BFD_FAIL ();
3452 (*_bfd_error_handler)
3453 (_("%B: probably compiled without -fPIC?"),
3454 input_bfd);
3455 bfd_set_error (bfd_error_bad_value);
3456 return FALSE;
3457 }
3458 }
3459
74541ad4
AM		 3460 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3461 r_type);
22b75d0a
DM		 3462 }
3463 }
3464
39817122 3465 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3466
3467 /* This reloc will be computed at runtime, so there's no
3468 need to do anything now. */
3469 if (! relocate)
3470 continue;
3471 }
3472 break;
3473
3474 case R_SPARC_TLS_GD_HI22:
3475 if (! ABI_64_P (input_bfd)
3476 && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
3477 {
3478 /* R_SPARC_REV32 used the same reloc number as
3479 R_SPARC_TLS_GD_HI22. */
3480 r_type = R_SPARC_REV32;
3481 break;
3482 }
3483 /* Fall through */
3484
3485 case R_SPARC_TLS_GD_LO10:
3486 case R_SPARC_TLS_IE_HI22:
3487 case R_SPARC_TLS_IE_LO10:
3488 r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
3489 tls_type = GOT_UNKNOWN;
3490 if (h == NULL && local_got_offsets)
3491 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3492 else if (h != NULL)
3493 {
3494 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3495 if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE)
3496 switch (SPARC_ELF_R_TYPE (rel->r_info))
3497 {
3498 case R_SPARC_TLS_GD_HI22:
3499 case R_SPARC_TLS_IE_HI22:
3500 r_type = R_SPARC_TLS_LE_HIX22;
3501 break;
3502 default:
3503 r_type = R_SPARC_TLS_LE_LOX10;
3504 break;
3505 }
3506 }
3507 if (tls_type == GOT_TLS_IE)
3508 switch (r_type)
3509 {
3510 case R_SPARC_TLS_GD_HI22:
3511 r_type = R_SPARC_TLS_IE_HI22;
3512 break;
3513 case R_SPARC_TLS_GD_LO10:
3514 r_type = R_SPARC_TLS_IE_LO10;
3515 break;
3516 }
3517
3518 if (r_type == R_SPARC_TLS_LE_HIX22)
3519 {
3520 relocation = tpoff (info, relocation);
3521 break;
3522 }
3523 if (r_type == R_SPARC_TLS_LE_LOX10)
3524 {
3525 /* Change add into xor. */
3526 relocation = tpoff (info, relocation);
3527 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3528 contents + rel->r_offset)
3529 | 0x80182000), contents + rel->r_offset);
3530 break;
3531 }
3532
3533 if (h != NULL)
3534 {
3535 off = h->got.offset;
3536 h->got.offset |= 1;
3537 }
3538 else
3539 {
3540 BFD_ASSERT (local_got_offsets != NULL);
3541 off = local_got_offsets[r_symndx];
3542 local_got_offsets[r_symndx] |= 1;
3543 }
3544
3545 r_sparc_tlsldm:
72fbc6e5 3546 if (htab->elf.sgot == NULL)
22b75d0a
DM		 3547 abort ();
3548
3549 if ((off & 1) != 0)
3550 off &= ~1;
3551 else
3552 {
3553 Elf_Internal_Rela outrel;
3554 int dr_type, indx;
3555
72fbc6e5 3556 if (htab->elf.srelgot == NULL)
22b75d0a
DM		 3557 abort ();
3558
72fbc6e5
DM		 3559 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3560 htab->elf.sgot->contents + off);
3561 outrel.r_offset = (htab->elf.sgot->output_section->vma
3562 + htab->elf.sgot->output_offset + off);
22b75d0a
DM		 3563 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3564 if (r_type == R_SPARC_TLS_IE_HI22
3565 || r_type == R_SPARC_TLS_IE_LO10)
3566 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3567 else
3568 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3569 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3570 outrel.r_addend = relocation - dtpoff_base (info);
3571 else
3572 outrel.r_addend = 0;
3573 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
72fbc6e5 3574 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
22b75d0a
DM		 3575
3576 if (r_type == R_SPARC_TLS_GD_HI22
3577 || r_type == R_SPARC_TLS_GD_LO10)
3578 {
3579 if (indx == 0)
3580 {
3581 BFD_ASSERT (! unresolved_reloc);
3582 SPARC_ELF_PUT_WORD (htab, output_bfd,
3583 relocation - dtpoff_base (info),
72fbc6e5 3584 (htab->elf.sgot->contents + off
22b75d0a
DM		 3585 + SPARC_ELF_WORD_BYTES (htab)));
3586 }
3587 else
3588 {
3589 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3590 (htab->elf.sgot->contents + off
22b75d0a
DM		 3591 + SPARC_ELF_WORD_BYTES (htab)));
3592 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3593 SPARC_ELF_DTPOFF_RELOC (htab));
3594 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
72fbc6e5 3595 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
39817122 3596 &outrel);
22b75d0a
DM		 3597 }
3598 }
3599 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3600 {
3601 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
72fbc6e5 3602 (htab->elf.sgot->contents + off
22b75d0a
DM		 3603 + SPARC_ELF_WORD_BYTES (htab)));
3604 }
3605 }
3606
3607 if (off >= (bfd_vma) -2)
3608 abort ();
3609
72fbc6e5 3610 relocation = htab->elf.sgot->output_offset + off - got_base;
22b75d0a
DM		 3611 unresolved_reloc = FALSE;
3612 howto = _bfd_sparc_elf_howto_table + r_type;
3613 break;
3614
3615 case R_SPARC_TLS_LDM_HI22:
3616 case R_SPARC_TLS_LDM_LO10:
3617 if (! info->shared)
3618 {
3619 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3620 continue;
3621 }
3622 off = htab->tls_ldm_got.offset;
3623 htab->tls_ldm_got.offset |= 1;
3624 goto r_sparc_tlsldm;
3625
3626 case R_SPARC_TLS_LDO_HIX22:
3627 case R_SPARC_TLS_LDO_LOX10:
3628 if (info->shared)
3629 {
3630 relocation -= dtpoff_base (info);
3631 break;
3632 }
3633
3634 r_type = (r_type == R_SPARC_TLS_LDO_HIX22
3635 ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
3636 /* Fall through. */
3637
3638 case R_SPARC_TLS_LE_HIX22:
3639 case R_SPARC_TLS_LE_LOX10:
3640 if (info->shared)
3641 {
3642 Elf_Internal_Rela outrel;
c7e2358a 3643 bfd_boolean skip;
22b75d0a
DM		 3644
3645 BFD_ASSERT (sreloc != NULL);
3646 skip = FALSE;
3647 outrel.r_offset =
3648 _bfd_elf_section_offset (output_bfd, info, input_section,
3649 rel->r_offset);
3650 if (outrel.r_offset == (bfd_vma) -1)
3651 skip = TRUE;
3652 else if (outrel.r_offset == (bfd_vma) -2)
c7e2358a 3653 skip = TRUE;
22b75d0a
DM		 3654 outrel.r_offset += (input_section->output_section->vma
3655 + input_section->output_offset);
3656 if (skip)
3657 memset (&outrel, 0, sizeof outrel);
3658 else
3659 {
3660 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3661 outrel.r_addend = relocation - dtpoff_base (info)
3662 + rel->r_addend;
3663 }
3664
39817122 3665 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
22b75d0a
DM		 3666 continue;
3667 }
3668 relocation = tpoff (info, relocation);
3669 break;
3670
3671 case R_SPARC_TLS_LDM_CALL:
3672 if (! info->shared)
3673 {
3674 /* mov %g0, %o0 */
3675 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3676 continue;
3677 }
3678 /* Fall through */
3679
3680 case R_SPARC_TLS_GD_CALL:
3681 tls_type = GOT_UNKNOWN;
3682 if (h == NULL && local_got_offsets)
3683 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3684 else if (h != NULL)
3685 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3686 if (! info->shared
3687 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3688 {
3689 bfd_vma insn;
3690
3691 if (!info->shared && (h == NULL || h->dynindx == -1))
3692 {
3693 /* GD -> LE */
3694 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3695 continue;
3696 }
3697
3698 /* GD -> IE */
3699 if (rel + 1 < relend
3700 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3701 && rel[1].r_offset == rel->r_offset + 4
3702 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3703 && (((insn = bfd_get_32 (input_bfd,
3704 contents + rel[1].r_offset))
3705 >> 25) & 0x1f) == 8)
3706 {
3707 /* We have
3708 call __tls_get_addr, %tgd_call(foo)
3709 add %reg1, %reg2, %o0, %tgd_add(foo)
3710 and change it into IE:
3711 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3712 add %g7, %o0, %o0, %tie_add(foo).
3713 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3714 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3715 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3716 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3717 contents + rel->r_offset);
3718 bfd_put_32 (output_bfd, 0x9001c008,
3719 contents + rel->r_offset + 4);
3720 rel++;
3721 continue;
3722 }
3723
3724 bfd_put_32 (output_bfd, 0x9001c008, contents + rel->r_offset);
3725 continue;
3726 }
3727
3728 h = (struct elf_link_hash_entry *)
3729 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3730 FALSE, TRUE);
3731 BFD_ASSERT (h != NULL);
3732 r_type = R_SPARC_WPLT30;
3733 howto = _bfd_sparc_elf_howto_table + r_type;
3734 goto r_sparc_wplt30;
3735
3736 case R_SPARC_TLS_GD_ADD:
3737 tls_type = GOT_UNKNOWN;
3738 if (h == NULL && local_got_offsets)
3739 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3740 else if (h != NULL)
3741 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3742 if (! info->shared || tls_type == GOT_TLS_IE)
3743 {
3744 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3745 changed into IE:
3746 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3747 or LE:
3748 add %g7, %reg2, %reg3. */
3749 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3750 if ((h != NULL && h->dynindx != -1) || info->shared)
3751 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
3752 else
3753 relocation = (insn & ~0x7c000) | 0x1c000;
3754 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3755 }
3756 continue;
3757
3758 case R_SPARC_TLS_LDM_ADD:
3759 if (! info->shared)
3760 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3761 continue;
3762
3763 case R_SPARC_TLS_LDO_ADD:
3764 if (! info->shared)
3765 {
3766 /* Change rs1 into %g7. */
3767 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3768 insn = (insn & ~0x7c000) | 0x1c000;
3769 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3770 }
3771 continue;
3772
3773 case R_SPARC_TLS_IE_LD:
3774 case R_SPARC_TLS_IE_LDX:
3775 if (! info->shared && (h == NULL || h->dynindx == -1))
3776 {
3777 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3778 int rs2 = insn & 0x1f;
3779 int rd = (insn >> 25) & 0x1f;
3780
3781 if (rs2 == rd)
3782 relocation = SPARC_NOP;
3783 else
3784 relocation = 0x80100000 | (insn & 0x3e00001f);
3785 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3786 }
3787 continue;
3788
3789 case R_SPARC_TLS_IE_ADD:
3790 /* Totally useless relocation. */
3791 continue;
3792
3793 case R_SPARC_TLS_DTPOFF32:
3794 case R_SPARC_TLS_DTPOFF64:
3795 relocation -= dtpoff_base (info);
3796 break;
3797
3798 default:
3799 break;
3800 }
3801
3802 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3803 because such sections are not SEC_ALLOC and thus ld.so will
3804 not process them. */
3805 if (unresolved_reloc
3806 && !((input_section->flags & SEC_DEBUGGING) != 0
3807 && h->def_dynamic))
3808 (*_bfd_error_handler)
843fe662 3809 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
22b75d0a
DM		 3810 input_bfd,
3811 input_section,
3812 (long) rel->r_offset,
843fe662 3813 howto->name,
22b75d0a
DM		 3814 h->root.root.string);
3815
3816 r = bfd_reloc_continue;
3817 if (r_type == R_SPARC_OLO10)
3818 {
3819 bfd_vma x;
3820
3821 if (! ABI_64_P (output_bfd))
3822 abort ();
3823
3824 relocation += rel->r_addend;
3825 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3826
3827 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3828 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3829 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3830
3831 r = bfd_check_overflow (howto->complain_on_overflow,
3832 howto->bitsize, howto->rightshift,
3833 bfd_arch_bits_per_address (input_bfd),
3834 relocation);
3835 }
3836 else if (r_type == R_SPARC_WDISP16)
3837 {
3838 bfd_vma x;
3839
3840 relocation += rel->r_addend;
3841 relocation -= (input_section->output_section->vma
3842 + input_section->output_offset);
3843 relocation -= rel->r_offset;
3844
3845 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3846 x |= ((((relocation >> 2) & 0xc000) << 6)
3847 | ((relocation >> 2) & 0x3fff));
3848 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3849
3850 r = bfd_check_overflow (howto->complain_on_overflow,
3851 howto->bitsize, howto->rightshift,
3852 bfd_arch_bits_per_address (input_bfd),
3853 relocation);
3854 }
3855 else if (r_type == R_SPARC_REV32)
3856 {
3857 bfd_vma x;
3858
3859 relocation = relocation + rel->r_addend;
3860
3861 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3862 x = x + relocation;
3863 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
3864 r = bfd_reloc_ok;
3865 }
3866 else if (r_type == R_SPARC_TLS_LDO_HIX22
3867 || r_type == R_SPARC_TLS_LE_HIX22)
3868 {
3869 bfd_vma x;
3870
3871 relocation += rel->r_addend;
3872 if (r_type == R_SPARC_TLS_LE_HIX22)
3873 relocation ^= MINUS_ONE;
3874
3875 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3876 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3877 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3878 r = bfd_reloc_ok;
3879 }
3880 else if (r_type == R_SPARC_TLS_LDO_LOX10
3881 || r_type == R_SPARC_TLS_LE_LOX10)
3882 {
3883 bfd_vma x;
3884
3885 relocation += rel->r_addend;
3886 relocation &= 0x3ff;
3887 if (r_type == R_SPARC_TLS_LE_LOX10)
3888 relocation |= 0x1c00;
3889
3890 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3891 x = (x & ~(bfd_vma) 0x1fff) | relocation;
3892 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3893
3894 r = bfd_reloc_ok;
3895 }
00c50991
DM		 3896 else if (r_type == R_SPARC_HIX22
3897 || r_type == R_SPARC_GOTDATA_HIX22)
22b75d0a
DM		 3898 {
3899 bfd_vma x;
3900
3901 relocation += rel->r_addend;
00c50991
DM		 3902 if (r_type == R_SPARC_HIX22
3903 || (bfd_signed_vma) relocation < 0)
3904 relocation = relocation ^ MINUS_ONE;
22b75d0a
DM		 3905
3906 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3907 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3908 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3909
3910 r = bfd_check_overflow (howto->complain_on_overflow,
3911 howto->bitsize, howto->rightshift,
3912 bfd_arch_bits_per_address (input_bfd),
3913 relocation);
3914 }
00c50991
DM		 3915 else if (r_type == R_SPARC_LOX10
3916 || r_type == R_SPARC_GOTDATA_LOX10)
22b75d0a
DM		 3917 {
3918 bfd_vma x;
3919
3920 relocation += rel->r_addend;
00c50991
DM		 3921 if (r_type == R_SPARC_LOX10
3922 || (bfd_signed_vma) relocation < 0)
3923 relocation = (relocation & 0x3ff) | 0x1c00;
3924 else
3925 relocation = (relocation & 0x3ff);
22b75d0a
DM		 3926
3927 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3928 x = (x & ~(bfd_vma) 0x1fff) | relocation;
3929 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3930
3931 r = bfd_reloc_ok;
3932 }
3933 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
3934 && sec_do_relax (input_section)
3935 && rel->r_offset + 4 < input_section->size)
3936 {
3937#define G0 0
3938#define O7 15
3939#define XCC (2 << 20)
3940#define COND(x) (((x)&0xf)<<25)
3941#define CONDA COND(0x8)
3942#define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
3943#define INSN_BA (F2(0,2) | CONDA)
3944#define INSN_OR F3(2, 0x2, 0)
3945#define INSN_NOP F2(0,4)
3946
3947 bfd_vma x, y;
3948
3949 /* If the instruction is a call with either:
3950 restore
3951 arithmetic instruction with rd == %o7
3952 where rs1 != %o7 and rs2 if it is register != %o7
3953 then we can optimize if the call destination is near
3954 by changing the call into a branch always. */
3955 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3956 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3957 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
3958 {
3959 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
3960 || ((y & OP3(0x28)) == 0 /* arithmetic */
3961 && (y & RD(~0)) == RD(O7)))
3962 && (y & RS1(~0)) != RS1(O7)
3963 && ((y & F3I(~0))
3964 || (y & RS2(~0)) != RS2(O7)))
3965 {
3966 bfd_vma reloc;
3967
3968 reloc = relocation + rel->r_addend - rel->r_offset;
3969 reloc -= (input_section->output_section->vma
3970 + input_section->output_offset);
3971
3972 /* Ensure the branch fits into simm22. */
3973 if ((reloc & 3) == 0
3974 && ((reloc & ~(bfd_vma)0x7fffff) == 0
3975 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
3976 {
3977 reloc >>= 2;
3978
3979 /* Check whether it fits into simm19. */
3980 if (((reloc & 0x3c0000) == 0
3981 || (reloc & 0x3c0000) == 0x3c0000)
3982 && (ABI_64_P (output_bfd)
3983 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
3984 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
3985 else
3986 x = INSN_BA | (reloc & 0x3fffff); /* ba */
3987 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3988 r = bfd_reloc_ok;
3989 if (rel->r_offset >= 4
3990 && (y & (0xffffffff ^ RS1(~0)))
3991 == (INSN_OR | RD(O7) | RS2(G0)))
3992 {
3993 bfd_vma z;
3994 unsigned int reg;
3995
3996 z = bfd_get_32 (input_bfd,
3997 contents + rel->r_offset - 4);
3998 if ((z & (0xffffffff ^ RD(~0)))
3999 != (INSN_OR | RS1(O7) | RS2(G0)))
4000 break;
4001
4002 /* The sequence was
4003 or %o7, %g0, %rN
4004 call foo
4005 or %rN, %g0, %o7
4006
4007 If call foo was replaced with ba, replace
4008 or %rN, %g0, %o7 with nop. */
4009
4010 reg = (y & RS1(~0)) >> 14;
4011 if (reg != ((z & RD(~0)) >> 25)
4012 || reg == G0 || reg == O7)
4013 break;
4014
4015 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4016 contents + rel->r_offset + 4);
4017 }
4018
4019 }
4020 }
4021 }
4022 }
4023
4024 if (r == bfd_reloc_continue)
d0c9aeb3
DM		 4025 {
4026do_relocation:
4027 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4028 contents, rel->r_offset,
4029 relocation, rel->r_addend);
4030 }
22b75d0a
DM		 4031 if (r != bfd_reloc_ok)
4032 {
4033 switch (r)
4034 {
4035 default:
4036 case bfd_reloc_outofrange:
4037 abort ();
4038 case bfd_reloc_overflow:
4039 {
4040 const char *name;
4041
dc669dc8
EB		 4042 /* The Solaris native linker silently disregards overflows.
4043 We don't, but this breaks stabs debugging info, whose
4044 relocations are only 32-bits wide. Ignore overflows in
4045 this case and also for discarded entries. */
4046 if ((r_type == R_SPARC_32 || r_type == R_SPARC_DISP32)
4047 && (((input_section->flags & SEC_DEBUGGING) != 0
4048 && strcmp (bfd_section_name (input_bfd,
4049 input_section),
4050 ".stab") == 0)
4051 || _bfd_elf_section_offset (output_bfd, info,
4052 input_section,
4053 rel->r_offset)
4054 == (bfd_vma)-1))
4055 break;
4056
22b75d0a 4057 if (h != NULL)
bb29dfea
EB		 4058 {
4059 /* Assume this is a call protected by other code that
4060 detect the symbol is undefined. If this is the case,
4061 we can safely ignore the overflow. If not, the
4062 program is hosed anyway, and a little warning isn't
4063 going to help. */
4064 if (h->root.type == bfd_link_hash_undefweak
4065 && howto->pc_relative)
4066 break;
4067
4068 name = NULL;
4069 }
22b75d0a
DM		 4070 else
4071 {
4072 name = bfd_elf_string_from_elf_section (input_bfd,
4073 symtab_hdr->sh_link,
4074 sym->st_name);
4075 if (name == NULL)
4076 return FALSE;
4077 if (*name == '\0')
4078 name = bfd_section_name (input_bfd, sec);
4079 }
4080 if (! ((*info->callbacks->reloc_overflow)
4081 (info, (h ? &h->root : NULL), name, howto->name,
4082 (bfd_vma) 0, input_bfd, input_section,
4083 rel->r_offset)))
4084 return FALSE;
4085 }
4086 break;
4087 }
4088 }
4089 }
4090
4091 return TRUE;
4092}
4093
910600e9
RS		 4094/* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4095 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4096 is the offset of the associated .got.plt entry from
4097 _GLOBAL_OFFSET_TABLE_. */
4098
4099static void
4100sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4101 bfd_vma plt_offset, bfd_vma plt_index,
4102 bfd_vma got_offset)
4103{
4104 bfd_vma got_base;
4105 const bfd_vma *plt_entry;
4106 struct _bfd_sparc_elf_link_hash_table *htab;
4107 bfd_byte *loc;
4108 Elf_Internal_Rela rela;
4109
4110 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4111 BFD_ASSERT (htab != NULL);
4112
910600e9
RS		 4113 if (info->shared)
4114 {
4115 plt_entry = sparc_vxworks_shared_plt_entry;
4116 got_base = 0;
4117 }
4118 else
4119 {
4120 plt_entry = sparc_vxworks_exec_plt_entry;
4121 got_base = (htab->elf.hgot->root.u.def.value
4122 + htab->elf.hgot->root.u.def.section->output_offset
4123 + htab->elf.hgot->root.u.def.section->output_section->vma);
4124 }
4125
4126 /* Fill in the entry in the procedure linkage table. */
4127 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
72fbc6e5 4128 htab->elf.splt->contents + plt_offset);
910600e9 4129 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
72fbc6e5 4130 htab->elf.splt->contents + plt_offset + 4);
910600e9 4131 bfd_put_32 (output_bfd, plt_entry[2],
72fbc6e5 4132 htab->elf.splt->contents + plt_offset + 8);
910600e9 4133 bfd_put_32 (output_bfd, plt_entry[3],
72fbc6e5 4134 htab->elf.splt->contents + plt_offset + 12);
910600e9 4135 bfd_put_32 (output_bfd, plt_entry[4],
72fbc6e5 4136 htab->elf.splt->contents + plt_offset + 16);
910600e9 4137 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
72fbc6e5 4138 htab->elf.splt->contents + plt_offset + 20);
910600e9
RS		 4139 /* PC-relative displacement for a branch to the start of
4140 the PLT section. */
4141 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4142 & 0x003fffff),
72fbc6e5 4143 htab->elf.splt->contents + plt_offset + 24);
910600e9 4144 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
72fbc6e5 4145 htab->elf.splt->contents + plt_offset + 28);
910600e9
RS		 4146
4147 /* Fill in the .got.plt entry, pointing initially at the
4148 second half of the PLT entry. */
72fbc6e5 4149 BFD_ASSERT (htab->elf.sgotplt != NULL);
910600e9 4150 bfd_put_32 (output_bfd,
72fbc6e5
DM		 4151 htab->elf.splt->output_section->vma
4152 + htab->elf.splt->output_offset
910600e9 4153 + plt_offset + 20,
72fbc6e5 4154 htab->elf.sgotplt->contents + got_offset);
910600e9
RS		 4155
4156 /* Add relocations to .rela.plt.unloaded. */
4157 if (!info->shared)
4158 {
4159 loc = (htab->srelplt2->contents
4160 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4161
4162 /* Relocate the initial sethi. */
72fbc6e5
DM		 4163 rela.r_offset = (htab->elf.splt->output_section->vma
4164 + htab->elf.splt->output_offset
910600e9
RS		 4165 + plt_offset);
4166 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4167 rela.r_addend = got_offset;
4168 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4169 loc += sizeof (Elf32_External_Rela);
4170
4171 /* Likewise the following or. */
4172 rela.r_offset += 4;
4173 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4174 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4175 loc += sizeof (Elf32_External_Rela);
4176
4177 /* Relocate the .got.plt entry. */
72fbc6e5
DM		 4178 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4179 + htab->elf.sgotplt->output_offset
910600e9
RS		 4180 + got_offset);
4181 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4182 rela.r_addend = plt_offset + 20;
4183 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4184 }
4185}
4186
22b75d0a
DM		 4187/* Finish up dynamic symbol handling. We set the contents of various
4188 dynamic sections here. */
4189
4190bfd_boolean
4191_bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4192 struct bfd_link_info *info,
4193 struct elf_link_hash_entry *h,
4194 Elf_Internal_Sym *sym)
4195{
22b75d0a 4196 struct _bfd_sparc_elf_link_hash_table *htab;
39817122 4197 const struct elf_backend_data *bed;
22b75d0a
DM		 4198
4199 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4200 BFD_ASSERT (htab != NULL);
39817122 4201 bed = get_elf_backend_data (output_bfd);
22b75d0a
DM		 4202
4203 if (h->plt.offset != (bfd_vma) -1)
4204 {
4205 asection *splt;
4206 asection *srela;
4207 Elf_Internal_Rela rela;
4208 bfd_byte *loc;
910600e9 4209 bfd_vma r_offset, got_offset;
22b75d0a
DM		 4210 int rela_index;
4211
d0c9aeb3
DM		 4212 /* When building a static executable, use .iplt and
4213 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4214 if (htab->elf.splt != NULL)
4215 {
4216 splt = htab->elf.splt;
4217 srela = htab->elf.srelplt;
4218 }
4219 else
4220 {
4221 splt = htab->elf.iplt;
4222 srela = htab->elf.irelplt;
4223 }
22b75d0a 4224
d0c9aeb3
DM		 4225 if (splt == NULL || srela == NULL)
4226 abort ();
22b75d0a 4227
22b75d0a 4228 /* Fill in the entry in the .rela.plt section. */
910600e9 4229 if (htab->is_vxworks)
22b75d0a 4230 {
910600e9
RS		 4231 /* Work out the index of this PLT entry. */
4232 rela_index = ((h->plt.offset - htab->plt_header_size)
4233 / htab->plt_entry_size);
4234
4235 /* Calculate the offset of the associated .got.plt entry.
4236 The first three entries are reserved. */
4237 got_offset = (rela_index + 3) * 4;
4238
4239 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4240 rela_index, got_offset);
4241
4242
4243 /* On VxWorks, the relocation points to the .got.plt entry,
4244 not the .plt entry. */
72fbc6e5
DM		 4245 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4246 + htab->elf.sgotplt->output_offset
910600e9 4247 + got_offset);
22b75d0a 4248 rela.r_addend = 0;
d0c9aeb3
DM		 4249 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4250 R_SPARC_JMP_SLOT);
22b75d0a
DM		 4251 }
4252 else
4253 {
d0c9aeb3
DM		 4254 bfd_boolean ifunc = FALSE;
4255
910600e9
RS		 4256 /* Fill in the entry in the procedure linkage table. */
4257 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4258 h->plt.offset, splt->size,
4259 &r_offset);
4260
d0c9aeb3
DM		 4261 if (h == NULL
4262 || h->dynindx == -1
4263 || ((info->executable
4264 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4265 && h->def_regular
4266 && h->type == STT_GNU_IFUNC))
4267 {
4268 ifunc = TRUE;
4269 BFD_ASSERT (h == NULL
4270 || (h->type == STT_GNU_IFUNC
4271 && h->def_regular
4272 && (h->root.type == bfd_link_hash_defined
4273 || h->root.type == bfd_link_hash_defweak)));
4274 }
4275
910600e9
RS		 4276 rela.r_offset = r_offset
4277 + (splt->output_section->vma + splt->output_offset);
d0c9aeb3
DM		 4278 if (ABI_64_P (output_bfd)
4279 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
910600e9 4280 {
d0c9aeb3
DM		 4281 if (ifunc)
4282 {
4283 rela.r_addend = (h->root.u.def.section->output_section->vma
4284 + h->root.u.def.section->output_offset
4285 + h->root.u.def.value);
4286 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4287 R_SPARC_IRELATIVE);
4288 }
4289 else
4290 {
4291 rela.r_addend = (-(h->plt.offset + 4)
4292 - splt->output_section->vma
4293 - splt->output_offset);
4294 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4295 R_SPARC_JMP_SLOT);
4296 }
910600e9
RS		 4297 }
4298 else
4299 {
d0c9aeb3
DM		 4300 if (ifunc)
4301 {
4302 rela.r_addend = (h->root.u.def.section->output_section->vma
4303 + h->root.u.def.section->output_offset
4304 + h->root.u.def.value);
4305 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4306 R_SPARC_JMP_IREL);
4307 }
4308 else
4309 {
4310 rela.r_addend = 0;
4311 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4312 R_SPARC_JMP_SLOT);
4313 }
910600e9 4314 }
22b75d0a 4315 }
22b75d0a
DM		 4316
4317 /* Adjust for the first 4 reserved elements in the .plt section
4318 when setting the offset in the .rela.plt section.
4319 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4320 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4321
4322 loc = srela->contents;
39817122
RS		 4323 loc += rela_index * bed->s->sizeof_rela;
4324 bed->s->swap_reloca_out (output_bfd, &rela, loc);
22b75d0a
DM		 4325
4326 if (!h->def_regular)
4327 {
4328 /* Mark the symbol as undefined, rather than as defined in
4329 the .plt section. Leave the value alone. */
4330 sym->st_shndx = SHN_UNDEF;
4331 /* If the symbol is weak, we do need to clear the value.
4332 Otherwise, the PLT entry would provide a definition for
4333 the symbol even if the symbol wasn't defined anywhere,
4334 and so the symbol would never be NULL. */
4335 if (!h->ref_regular_nonweak)
4336 sym->st_value = 0;
4337 }
4338 }
4339
4340 if (h->got.offset != (bfd_vma) -1
4341 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4342 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
4343 {
4344 asection *sgot;
4345 asection *srela;
4346 Elf_Internal_Rela rela;
4347
4348 /* This symbol has an entry in the GOT. Set it up. */
4349
72fbc6e5
DM		 4350 sgot = htab->elf.sgot;
4351 srela = htab->elf.srelgot;
22b75d0a
DM		 4352 BFD_ASSERT (sgot != NULL && srela != NULL);
4353
4354 rela.r_offset = (sgot->output_section->vma
4355 + sgot->output_offset
4356 + (h->got.offset &~ (bfd_vma) 1));
4357
4358 /* If this is a -Bsymbolic link, and the symbol is defined
4359 locally, we just want to emit a RELATIVE reloc. Likewise if
4360 the symbol was forced to be local because of a version file.
4361 The entry in the global offset table will already have been
4362 initialized in the relocate_section function. */
d0c9aeb3
DM		 4363 if (! info->shared
4364 && h->type == STT_GNU_IFUNC
4365 && h->def_regular)
4366 {
4367 asection *plt;
4368
4369 /* We load the GOT entry with the PLT entry. */
4370 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4371 SPARC_ELF_PUT_WORD (htab, output_bfd,
4372 (plt->output_section->vma
4373 + plt->output_offset + h->plt.offset),
4374 htab->elf.sgot->contents
4375 + (h->got.offset & ~(bfd_vma) 1));
4376 return TRUE;
4377 }
4378 else if (info->shared
4379 && SYMBOL_REFERENCES_LOCAL (info, h))
22b75d0a
DM		 4380 {
4381 asection *sec = h->root.u.def.section;
d0c9aeb3
DM		 4382 if (h->type == STT_GNU_IFUNC)
4383 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4384 else
4385 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
22b75d0a
DM		 4386 rela.r_addend = (h->root.u.def.value
4387 + sec->output_section->vma
4388 + sec->output_offset);
4389 }
4390 else
4391 {
4392 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4393 rela.r_addend = 0;
4394 }
4395
4396 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4397 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
39817122 4398 sparc_elf_append_rela (output_bfd, srela, &rela);
22b75d0a
DM		 4399 }
4400
4401 if (h->needs_copy)
4402 {
4403 asection *s;
4404 Elf_Internal_Rela rela;
4405
4406 /* This symbols needs a copy reloc. Set it up. */
4407 BFD_ASSERT (h->dynindx != -1);
4408
4409 s = bfd_get_section_by_name (h->root.u.def.section->owner,
4410 ".rela.bss");
4411 BFD_ASSERT (s != NULL);
4412
4413 rela.r_offset = (h->root.u.def.value
4414 + h->root.u.def.section->output_section->vma
4415 + h->root.u.def.section->output_offset);
4416 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4417 rela.r_addend = 0;
39817122 4418 sparc_elf_append_rela (output_bfd, s, &rela);
22b75d0a
DM		 4419 }
4420
910600e9
RS		 4421 /* Mark some specially defined symbols as absolute. On VxWorks,
4422 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4423 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
d0c9aeb3
DM		 4424 if (sym != NULL
4425 && (strcmp (h->root.root.string, "_DYNAMIC") == 0
4426 || (!htab->is_vxworks
4427 && (h == htab->elf.hgot || h == htab->elf.hplt))))
22b75d0a
DM		 4428 sym->st_shndx = SHN_ABS;
4429
4430 return TRUE;
4431}
4432
4433/* Finish up the dynamic sections. */
4434
22b75d0a 4435static bfd_boolean
39817122
RS		 4436sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4437 bfd *dynobj, asection *sdyn,
4438 asection *splt ATTRIBUTE_UNUSED)
22b75d0a 4439{
910600e9 4440 struct _bfd_sparc_elf_link_hash_table *htab;
39817122
RS		 4441 const struct elf_backend_data *bed;
4442 bfd_byte *dyncon, *dynconend;
4443 size_t dynsize;
4444 int stt_regidx = -1;
4445 bfd_boolean abi_64_p;
22b75d0a 4446
910600e9 4447 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4448 BFD_ASSERT (htab != NULL);
39817122
RS		 4449 bed = get_elf_backend_data (output_bfd);
4450 dynsize = bed->s->sizeof_dyn;
4451 dynconend = sdyn->contents + sdyn->size;
4452 abi_64_p = ABI_64_P (output_bfd);
4453 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
22b75d0a
DM		 4454 {
4455 Elf_Internal_Dyn dyn;
4456 const char *name;
4457 bfd_boolean size;
4458
39817122 4459 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
22b75d0a 4460
910600e9 4461 if (htab->is_vxworks && dyn.d_tag == DT_RELASZ)
22b75d0a 4462 {
910600e9
RS		 4463 /* On VxWorks, DT_RELASZ should not include the relocations
4464 in .rela.plt. */
72fbc6e5 4465 if (htab->elf.srelplt)
910600e9 4466 {
72fbc6e5 4467 dyn.d_un.d_val -= htab->elf.srelplt->size;
39817122 4468 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
910600e9 4469 }
22b75d0a 4470 }
910600e9 4471 else if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
22b75d0a 4472 {
910600e9
RS		 4473 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4474 not to the start of the PLT. */
72fbc6e5 4475 if (htab->elf.sgotplt)
910600e9 4476 {
72fbc6e5
DM		 4477 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4478 + htab->elf.sgotplt->output_offset);
39817122 4479 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
910600e9
RS		 4480 }
4481 }
7a2b07ff
NS		 4482 else if (htab->is_vxworks
4483 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4484 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
39817122
RS		 4485 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4486 {
4487 if (stt_regidx == -1)
4488 {
4489 stt_regidx =
4490 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4491 if (stt_regidx == -1)
4492 return FALSE;
4493 }
4494 dyn.d_un.d_val = stt_regidx++;
4495 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4496 }
910600e9
RS		 4497 else
4498 {
4499 switch (dyn.d_tag)
4500 {
4501 case DT_PLTGOT: name = ".plt"; size = FALSE; break;
4502 case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break;
4503 case DT_JMPREL: name = ".rela.plt"; size = FALSE; break;
39817122 4504 default: name = NULL; size = FALSE; break;
910600e9 4505 }
22b75d0a 4506
910600e9 4507 if (name != NULL)
22b75d0a 4508 {
910600e9
RS		 4509 asection *s;
4510
4511 s = bfd_get_section_by_name (output_bfd, name);
4512 if (s == NULL)
4513 dyn.d_un.d_val = 0;
22b75d0a 4514 else
910600e9
RS		 4515 {
4516 if (! size)
4517 dyn.d_un.d_ptr = s->vma;
4518 else
4519 dyn.d_un.d_val = s->size;
4520 }
39817122 4521 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
22b75d0a 4522 }
22b75d0a
DM		 4523 }
4524 }
4525 return TRUE;
4526}
4527
910600e9
RS		 4528/* Install the first PLT entry in a VxWorks executable and make sure that
4529 .rela.plt.unloaded relocations have the correct symbol indexes. */
4530
4531static void
4532sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4533{
4534 struct _bfd_sparc_elf_link_hash_table *htab;
4535 Elf_Internal_Rela rela;
4536 bfd_vma got_base;
4537 bfd_byte *loc;
4538
4539 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4540 BFD_ASSERT (htab != NULL);
910600e9
RS		 4541
4542 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4543 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4544 + htab->elf.hgot->root.u.def.section->output_offset
4545 + htab->elf.hgot->root.u.def.value);
4546
4547 /* Install the initial PLT entry. */
4548 bfd_put_32 (output_bfd,
4549 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
72fbc6e5 4550 htab->elf.splt->contents);
910600e9
RS		 4551 bfd_put_32 (output_bfd,
4552 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
72fbc6e5 4553 htab->elf.splt->contents + 4);
910600e9
RS		 4554 bfd_put_32 (output_bfd,
4555 sparc_vxworks_exec_plt0_entry[2],
72fbc6e5 4556 htab->elf.splt->contents + 8);
910600e9
RS		 4557 bfd_put_32 (output_bfd,
4558 sparc_vxworks_exec_plt0_entry[3],
72fbc6e5 4559 htab->elf.splt->contents + 12);
910600e9
RS		 4560 bfd_put_32 (output_bfd,
4561 sparc_vxworks_exec_plt0_entry[4],
72fbc6e5 4562 htab->elf.splt->contents + 16);
910600e9
RS		 4563
4564 loc = htab->srelplt2->contents;
4565
4566 /* Add an unloaded relocation for the initial entry's "sethi". */
72fbc6e5
DM		 4567 rela.r_offset = (htab->elf.splt->output_section->vma
4568 + htab->elf.splt->output_offset);
910600e9
RS		 4569 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4570 rela.r_addend = 8;
4571 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4572 loc += sizeof (Elf32_External_Rela);
4573
4574 /* Likewise the following "or". */
4575 rela.r_offset += 4;
4576 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4577 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4578 loc += sizeof (Elf32_External_Rela);
4579
4580 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4581 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4582 in which symbols were output. */
4583 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4584 {
4585 Elf_Internal_Rela rel;
4586
4587 /* The entry's initial "sethi" (against _G_O_T_). */
4588 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4589 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4590 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4591 loc += sizeof (Elf32_External_Rela);
4592
4593 /* The following "or" (also against _G_O_T_). */
4594 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4595 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4596 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4597 loc += sizeof (Elf32_External_Rela);
4598
4599 /* The .got.plt entry (against _P_L_T_). */
4600 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4601 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4602 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4603 loc += sizeof (Elf32_External_Rela);
4604 }
4605}
4606
4607/* Install the first PLT entry in a VxWorks shared object. */
4608
4609static void
4610sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4611{
4612 struct _bfd_sparc_elf_link_hash_table *htab;
4613 unsigned int i;
4614
4615 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6
NC		 4616 BFD_ASSERT (htab != NULL);
4617
910600e9
RS		 4618 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4619 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
72fbc6e5 4620 htab->elf.splt->contents + i * 4);
910600e9
RS		 4621}
4622
d0c9aeb3
DM		 4623/* Finish up local dynamic symbol handling. We set the contents of
4624 various dynamic sections here. */
4625
4626static bfd_boolean
4627finish_local_dynamic_symbol (void **slot, void *inf)
4628{
4629 struct elf_link_hash_entry *h
4630 = (struct elf_link_hash_entry *) *slot;
4631 struct bfd_link_info *info
4632 = (struct bfd_link_info *) inf;
4633
4634 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4635 h, NULL);
4636}
4637
22b75d0a
DM		 4638bfd_boolean
4639_bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4640{
4641 bfd *dynobj;
4642 asection *sdyn;
4643 struct _bfd_sparc_elf_link_hash_table *htab;
4644
4645 htab = _bfd_sparc_elf_hash_table (info);
4dfe6ac6 4646 BFD_ASSERT (htab != NULL);
22b75d0a
DM		 4647 dynobj = htab->elf.dynobj;
4648
4649 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4650
4651 if (elf_hash_table (info)->dynamic_sections_created)
4652 {
4653 asection *splt;
22b75d0a
DM		 4654
4655 splt = bfd_get_section_by_name (dynobj, ".plt");
4656 BFD_ASSERT (splt != NULL && sdyn != NULL);
4657
39817122
RS		 4658 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4659 return FALSE;
22b75d0a
DM		 4660
4661 /* Initialize the contents of the .plt section. */
4662 if (splt->size > 0)
4663 {
910600e9
RS		 4664 if (htab->is_vxworks)
4665 {
4666 if (info->shared)
4667 sparc_vxworks_finish_shared_plt (output_bfd, info);
4668 else
4669 sparc_vxworks_finish_exec_plt (output_bfd, info);
4670 }
22b75d0a
DM		 4671 else
4672 {
910600e9
RS		 4673 memset (splt->contents, 0, htab->plt_header_size);
4674 if (!ABI_64_P (output_bfd))
4675 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4676 splt->contents + splt->size - 4);
22b75d0a
DM		 4677 }
4678 }
4679
910600e9 4680 elf_section_data (splt->output_section)->this_hdr.sh_entsize
7eeb1be6
JJ		 4681 = (htab->is_vxworks || !ABI_64_P (output_bfd))
4682 ? 0 : htab->plt_entry_size;
22b75d0a
DM		 4683 }
4684
4685 /* Set the first entry in the global offset table to the address of
4686 the dynamic section. */
72fbc6e5 4687 if (htab->elf.sgot && htab->elf.sgot->size > 0)
22b75d0a
DM		 4688 {
4689 bfd_vma val = (sdyn ?
4690 sdyn->output_section->vma + sdyn->output_offset :
4691 0);
4692
72fbc6e5 4693 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
22b75d0a
DM		 4694 }
4695
72fbc6e5
DM		 4696 if (htab->elf.sgot)
4697 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
22b75d0a
DM		 4698 SPARC_ELF_WORD_BYTES (htab);
4699
d0c9aeb3
DM		 4700 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4701 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4702
22b75d0a
DM		 4703 return TRUE;
4704}
4705
4706\f
4707/* Set the right machine number for a SPARC ELF file. */
4708
4709bfd_boolean
4710_bfd_sparc_elf_object_p (bfd *abfd)
4711{
4712 if (ABI_64_P (abfd))
4713 {
4714 unsigned long mach = bfd_mach_sparc_v9;
4715
4716 if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4717 mach = bfd_mach_sparc_v9b;
4718 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4719 mach = bfd_mach_sparc_v9a;
4720 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4721 }
4722 else
4723 {
4724 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4725 {
4726 if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4727 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4728 bfd_mach_sparc_v8plusb);
4729 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4730 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4731 bfd_mach_sparc_v8plusa);
4732 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4733 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4734 bfd_mach_sparc_v8plus);
4735 else
4736 return FALSE;
4737 }
4738 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4739 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4740 bfd_mach_sparc_sparclite_le);
4741 else
4742 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4743 }
4744}
4745
4746/* Return address for Ith PLT stub in section PLT, for relocation REL
4747 or (bfd_vma) -1 if it should not be included. */
4748
4749bfd_vma
4750_bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
4751{
4752 if (ABI_64_P (plt->owner))
4753 {
4754 bfd_vma j;
4755
4756 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
4757 if (i < PLT64_LARGE_THRESHOLD)
4758 return plt->vma + i * PLT64_ENTRY_SIZE;
4759
4760 j = (i - PLT64_LARGE_THRESHOLD) % 160;
4761 i -= j;
4762 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
4763 }
4764 else
4765 return rel->address;
4766}
GDB Binutils - Deliverables
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