[sim] Run spellcheck.sh in sim (part 2)
[binutils-gdb.git] / bfd / elfxx-sparc.c
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1 /* SPARC-specific support for ELF
2 Copyright (C) 2005-2024 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
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
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
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.
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
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
22 /* This file handles functionality common to the different SPARC ABI's. */
24 #include "sysdep.h"
25 #include "bfd.h"
26 #include "bfdlink.h"
27 #include "libbfd.h"
28 #include "libiberty.h"
29 #include "elf-bfd.h"
30 #include "elf/sparc.h"
31 #include "opcode/sparc.h"
32 #include "elfxx-sparc.h"
33 #include "elf-vxworks.h"
34 #include "objalloc.h"
35 #include "hashtab.h"
37 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
38 #define MINUS_ONE (~ (bfd_vma) 0)
40 #define ABI_64_P(abfd) \
41 (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
43 /* The relocation "howto" table. */
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. */
53 static bfd_reloc_status_type
54 init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
55 void * data, asection *input_section, bfd *output_bfd,
56 bfd_vma *prelocation, bfd_vma *pinsn)
58 bfd_vma relocation;
59 reloc_howto_type *howto = reloc_entry->howto;
61 if (output_bfd != (bfd *) NULL
62 && (symbol->flags & BSF_SECTION_SYM) == 0
63 && (! howto->partial_inplace
64 || reloc_entry->addend == 0))
66 reloc_entry->address += input_section->output_offset;
67 return bfd_reloc_ok;
70 /* This works because partial_inplace is FALSE. */
71 if (output_bfd != NULL)
72 return bfd_reloc_continue;
74 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
75 return bfd_reloc_outofrange;
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)
83 relocation -= (input_section->output_section->vma
84 + input_section->output_offset);
85 relocation -= reloc_entry->address;
88 *prelocation = relocation;
89 *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
90 return bfd_reloc_other;
93 /* For unsupported relocs. */
95 static bfd_reloc_status_type
96 sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
97 arelent *reloc_entry ATTRIBUTE_UNUSED,
98 asymbol *symbol ATTRIBUTE_UNUSED,
99 void * data ATTRIBUTE_UNUSED,
100 asection *input_section ATTRIBUTE_UNUSED,
101 bfd *output_bfd ATTRIBUTE_UNUSED,
102 char **error_message ATTRIBUTE_UNUSED)
104 return bfd_reloc_notsupported;
107 /* Handle the WDISP16 reloc. */
109 static bfd_reloc_status_type
110 sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
111 void * data, asection *input_section, bfd *output_bfd,
112 char **error_message ATTRIBUTE_UNUSED)
114 bfd_vma relocation;
115 bfd_vma insn;
116 bfd_reloc_status_type status;
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;
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);
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;
134 /* Handle the WDISP10 reloc. */
136 static bfd_reloc_status_type
137 sparc_elf_wdisp10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
138 void * data, asection *input_section, bfd *output_bfd,
139 char **error_message ATTRIBUTE_UNUSED)
141 bfd_vma relocation;
142 bfd_vma insn;
143 bfd_reloc_status_type status;
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;
150 insn &= ~ (bfd_vma) 0x181fe0;
151 insn |= (((relocation >> 2) & 0x300) << 11)
152 | (((relocation >> 2) & 0xff) << 5);
153 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
155 if ((bfd_signed_vma) relocation < - 0x1000
156 || (bfd_signed_vma) relocation > 0xfff)
157 return bfd_reloc_overflow;
158 else
159 return bfd_reloc_ok;
162 /* Handle the HIX22 reloc. */
164 static bfd_reloc_status_type
165 sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
166 void * data, asection *input_section, bfd *output_bfd,
167 char **error_message ATTRIBUTE_UNUSED)
169 bfd_vma relocation;
170 bfd_vma insn;
171 bfd_reloc_status_type status;
173 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
174 input_section, output_bfd, &relocation, &insn);
175 if (status != bfd_reloc_other)
176 return status;
178 relocation ^= MINUS_ONE;
179 insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
180 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
182 if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
183 return bfd_reloc_overflow;
184 else
185 return bfd_reloc_ok;
188 /* Handle the LOX10 reloc. */
190 static bfd_reloc_status_type
191 sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
192 void * data, asection *input_section, bfd *output_bfd,
193 char **error_message ATTRIBUTE_UNUSED)
195 bfd_vma relocation;
196 bfd_vma insn;
197 bfd_reloc_status_type status;
199 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
200 input_section, output_bfd, &relocation, &insn);
201 if (status != bfd_reloc_other)
202 return status;
204 insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
205 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
207 return bfd_reloc_ok;
210 static reloc_howto_type _bfd_sparc_elf_howto_table[] =
212 HOWTO(R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", false,0,0x00000000,true),
213 HOWTO(R_SPARC_8, 0,1, 8,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", false,0,0x000000ff,true),
214 HOWTO(R_SPARC_16, 0,2,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", false,0,0x0000ffff,true),
215 HOWTO(R_SPARC_32, 0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", false,0,0xffffffff,true),
216 HOWTO(R_SPARC_DISP8, 0,1, 8,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", false,0,0x000000ff,true),
217 HOWTO(R_SPARC_DISP16, 0,2,16,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", false,0,0x0000ffff,true),
218 HOWTO(R_SPARC_DISP32, 0,4,32,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", false,0,0xffffffff,true),
219 HOWTO(R_SPARC_WDISP30, 2,4,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", false,0,0x3fffffff,true),
220 HOWTO(R_SPARC_WDISP22, 2,4,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", false,0,0x003fffff,true),
221 HOWTO(R_SPARC_HI22, 10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", false,0,0x003fffff,true),
222 HOWTO(R_SPARC_22, 0,4,22,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", false,0,0x003fffff,true),
223 HOWTO(R_SPARC_13, 0,4,13,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", false,0,0x00001fff,true),
224 HOWTO(R_SPARC_LO10, 0,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", false,0,0x000003ff,true),
225 HOWTO(R_SPARC_GOT10, 0,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", false,0,0x000003ff,true),
226 HOWTO(R_SPARC_GOT13, 0,4,13,false,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", false,0,0x00001fff,true),
227 HOWTO(R_SPARC_GOT22, 10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", false,0,0x003fffff,true),
228 HOWTO(R_SPARC_PC10, 0,4,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", false,0,0x000003ff,true),
229 HOWTO(R_SPARC_PC22, 10,4,22,true, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", false,0,0x003fffff,true),
230 HOWTO(R_SPARC_WPLT30, 2,4,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", false,0,0x3fffffff,true),
231 HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", false,0,0x00000000,true),
232 HOWTO(R_SPARC_GLOB_DAT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",false,0,0x00000000,true),
233 HOWTO(R_SPARC_JMP_SLOT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",false,0,0x00000000,true),
234 HOWTO(R_SPARC_RELATIVE, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",false,0,0x00000000,true),
235 HOWTO(R_SPARC_UA32, 0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", false,0,0xffffffff,true),
236 HOWTO(R_SPARC_PLT32, 0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", false,0,0xffffffff,true),
237 HOWTO(R_SPARC_HIPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", false,0,0x00000000,true),
238 HOWTO(R_SPARC_LOPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", false,0,0x00000000,true),
239 HOWTO(R_SPARC_PCPLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", false,0,0x00000000,true),
240 HOWTO(R_SPARC_PCPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", false,0,0x00000000,true),
241 HOWTO(R_SPARC_PCPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", false,0,0x00000000,true),
242 HOWTO(R_SPARC_10, 0,4,10,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", false,0,0x000003ff,true),
243 HOWTO(R_SPARC_11, 0,4,11,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", false,0,0x000007ff,true),
244 HOWTO(R_SPARC_64, 0,8,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", false,0,MINUS_ONE, true),
245 HOWTO(R_SPARC_OLO10, 0,4,13,false,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", false,0,0x00001fff,true),
246 HOWTO(R_SPARC_HH22, 42,4,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", false,0,0x003fffff,true),
247 HOWTO(R_SPARC_HM10, 32,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", false,0,0x000003ff,true),
248 HOWTO(R_SPARC_LM22, 10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", false,0,0x003fffff,true),
249 HOWTO(R_SPARC_PC_HH22, 42,4,22,true, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", false,0,0x003fffff,true),
250 HOWTO(R_SPARC_PC_HM10, 32,4,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", false,0,0x000003ff,true),
251 HOWTO(R_SPARC_PC_LM22, 10,4,22,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", false,0,0x003fffff,true),
252 HOWTO(R_SPARC_WDISP16, 2,4,16,true, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", false,0,0x00000000,true),
253 HOWTO(R_SPARC_WDISP19, 2,4,19,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", false,0,0x0007ffff,true),
254 HOWTO(R_SPARC_UNUSED_42, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",false,0,0x00000000,true),
255 HOWTO(R_SPARC_7, 0,4, 7,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", false,0,0x0000007f,true),
256 HOWTO(R_SPARC_5, 0,4, 5,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", false,0,0x0000001f,true),
257 HOWTO(R_SPARC_6, 0,4, 6,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", false,0,0x0000003f,true),
258 HOWTO(R_SPARC_DISP64, 0,8,64,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", false,0,MINUS_ONE, true),
259 HOWTO(R_SPARC_PLT64, 0,8,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", false,0,MINUS_ONE, true),
260 HOWTO(R_SPARC_HIX22, 0,8, 0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", false,0,MINUS_ONE, false),
261 HOWTO(R_SPARC_LOX10, 0,8, 0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", false,0,MINUS_ONE, false),
262 HOWTO(R_SPARC_H44, 22,4,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", false,0,0x003fffff,false),
263 HOWTO(R_SPARC_M44, 12,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", false,0,0x000003ff,false),
264 HOWTO(R_SPARC_L44, 0,4,13,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", false,0,0x00000fff,false),
265 HOWTO(R_SPARC_REGISTER, 0,8, 0,false,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",false,0,MINUS_ONE, false),
266 HOWTO(R_SPARC_UA64, 0,8,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", false,0,MINUS_ONE, true),
267 HOWTO(R_SPARC_UA16, 0,2,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", false,0,0x0000ffff,true),
268 HOWTO(R_SPARC_TLS_GD_HI22,10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",false,0,0x003fffff,true),
269 HOWTO(R_SPARC_TLS_GD_LO10,0,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",false,0,0x000003ff,true),
270 HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",false,0,0x00000000,true),
271 HOWTO(R_SPARC_TLS_GD_CALL,2,4,30,true,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",false,0,0x3fffffff,true),
272 HOWTO(R_SPARC_TLS_LDM_HI22,10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",false,0,0x003fffff,true),
273 HOWTO(R_SPARC_TLS_LDM_LO10,0,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",false,0,0x000003ff,true),
274 HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",false,0,0x00000000,true),
275 HOWTO(R_SPARC_TLS_LDM_CALL,2,4,30,true,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",false,0,0x3fffffff,true),
276 HOWTO(R_SPARC_TLS_LDO_HIX22,0,4,0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",false,0,0x003fffff, false),
277 HOWTO(R_SPARC_TLS_LDO_LOX10,0,4,0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",false,0,0x000003ff, false),
278 HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",false,0,0x00000000,true),
279 HOWTO(R_SPARC_TLS_IE_HI22,10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",false,0,0x003fffff,true),
280 HOWTO(R_SPARC_TLS_IE_LO10,0,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",false,0,0x000003ff,true),
281 HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",false,0,0x00000000,true),
282 HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",false,0,0x00000000,true),
283 HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",false,0,0x00000000,true),
284 HOWTO(R_SPARC_TLS_LE_HIX22,0,4,0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",false,0,0x003fffff, false),
285 HOWTO(R_SPARC_TLS_LE_LOX10,0,4,0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",false,0,0x000003ff, false),
286 HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",false,0,0x00000000,true),
287 HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",false,0,0x00000000,true),
288 HOWTO(R_SPARC_TLS_DTPOFF32,0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",false,0,0xffffffff,true),
289 HOWTO(R_SPARC_TLS_DTPOFF64,0,8,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",false,0,MINUS_ONE,true),
290 HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",false,0,0x00000000,true),
291 HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",false,0,0x00000000,true),
292 HOWTO(R_SPARC_GOTDATA_HIX22,0,4,0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",false,0,0x003fffff, false),
293 HOWTO(R_SPARC_GOTDATA_LOX10,0,4,0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",false,0,0x000003ff, false),
294 HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,4,0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",false,0,0x003fffff, false),
295 HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,4,0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",false,0,0x000003ff, false),
296 HOWTO(R_SPARC_GOTDATA_OP,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOTDATA_OP",false,0,0x00000000,true),
297 HOWTO(R_SPARC_H34,12,4,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc,"R_SPARC_H34",false,0,0x003fffff,false),
298 HOWTO(R_SPARC_SIZE32,0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE32",false,0,0xffffffff,true),
299 HOWTO(R_SPARC_SIZE64,0,8,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE64",false,0,MINUS_ONE, true),
300 HOWTO(R_SPARC_WDISP10,2,4,10,true, 0,complain_overflow_signed,sparc_elf_wdisp10_reloc,"R_SPARC_WDISP10",false,0,0x00000000,true),
302 static reloc_howto_type sparc_jmp_irel_howto =
303 HOWTO(R_SPARC_JMP_IREL, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_IREL",false,0,0x00000000,true);
304 static reloc_howto_type sparc_irelative_howto =
305 HOWTO(R_SPARC_IRELATIVE, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_IRELATIVE",false,0,0x00000000,true);
306 static reloc_howto_type sparc_vtinherit_howto =
307 HOWTO (R_SPARC_GNU_VTINHERIT, 0,4,0,false,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", false,0, 0, false);
308 static reloc_howto_type sparc_vtentry_howto =
309 HOWTO (R_SPARC_GNU_VTENTRY, 0,4,0,false,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", false,0,0, false);
310 static reloc_howto_type sparc_rev32_howto =
311 HOWTO(R_SPARC_REV32, 0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", false,0,0xffffffff,true);
313 reloc_howto_type *
314 _bfd_sparc_elf_reloc_type_lookup (bfd *abfd,
315 bfd_reloc_code_real_type code)
317 /* We explicitly handle each relocation type in the switch
318 instead of using a lookup table for efficiency. */
319 switch (code)
321 case BFD_RELOC_NONE:
322 return &_bfd_sparc_elf_howto_table[R_SPARC_NONE];
324 case BFD_RELOC_8:
325 return &_bfd_sparc_elf_howto_table[R_SPARC_8];
327 case BFD_RELOC_16:
328 return &_bfd_sparc_elf_howto_table[R_SPARC_16];
330 case BFD_RELOC_32:
331 return &_bfd_sparc_elf_howto_table[R_SPARC_32];
333 case BFD_RELOC_8_PCREL:
334 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP8];
336 case BFD_RELOC_16_PCREL:
337 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP16];
339 case BFD_RELOC_32_PCREL:
340 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP32];
342 case BFD_RELOC_32_PCREL_S2:
343 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP30];
345 case BFD_RELOC_SPARC_WDISP22:
346 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP22];
348 case BFD_RELOC_HI22:
349 return &_bfd_sparc_elf_howto_table[R_SPARC_HI22];
351 case BFD_RELOC_SPARC22:
352 return &_bfd_sparc_elf_howto_table[R_SPARC_22];
354 case BFD_RELOC_SPARC13:
355 return &_bfd_sparc_elf_howto_table[R_SPARC_13];
357 case BFD_RELOC_LO10:
358 return &_bfd_sparc_elf_howto_table[R_SPARC_LO10];
360 case BFD_RELOC_SPARC_GOT10:
361 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT10];
363 case BFD_RELOC_SPARC_GOT13:
364 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT13];
366 case BFD_RELOC_SPARC_GOT22:
367 return &_bfd_sparc_elf_howto_table[R_SPARC_GOT22];
369 case BFD_RELOC_SPARC_PC10:
370 return &_bfd_sparc_elf_howto_table[R_SPARC_PC10];
372 case BFD_RELOC_SPARC_PC22:
373 return &_bfd_sparc_elf_howto_table[R_SPARC_PC22];
375 case BFD_RELOC_SPARC_WPLT30:
376 return &_bfd_sparc_elf_howto_table[R_SPARC_WPLT30];
378 case BFD_RELOC_SPARC_COPY:
379 return &_bfd_sparc_elf_howto_table[R_SPARC_COPY];
381 case BFD_RELOC_SPARC_GLOB_DAT:
382 return &_bfd_sparc_elf_howto_table[R_SPARC_GLOB_DAT];
384 case BFD_RELOC_SPARC_JMP_SLOT:
385 return &_bfd_sparc_elf_howto_table[R_SPARC_JMP_SLOT];
387 case BFD_RELOC_SPARC_RELATIVE:
388 return &_bfd_sparc_elf_howto_table[R_SPARC_RELATIVE];
390 case BFD_RELOC_SPARC_UA32:
391 return &_bfd_sparc_elf_howto_table[R_SPARC_UA32];
393 case BFD_RELOC_SPARC_PLT32:
394 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT32];
396 case BFD_RELOC_SPARC_10:
397 return &_bfd_sparc_elf_howto_table[R_SPARC_10];
399 case BFD_RELOC_SPARC_11:
400 return &_bfd_sparc_elf_howto_table[R_SPARC_11];
402 case BFD_RELOC_SPARC_64:
403 return &_bfd_sparc_elf_howto_table[R_SPARC_64];
405 case BFD_RELOC_SPARC_OLO10:
406 return &_bfd_sparc_elf_howto_table[R_SPARC_OLO10];
408 case BFD_RELOC_SPARC_HH22:
409 return &_bfd_sparc_elf_howto_table[R_SPARC_HH22];
411 case BFD_RELOC_SPARC_HM10:
412 return &_bfd_sparc_elf_howto_table[R_SPARC_HM10];
414 case BFD_RELOC_SPARC_LM22:
415 return &_bfd_sparc_elf_howto_table[R_SPARC_LM22];
417 case BFD_RELOC_SPARC_PC_HH22:
418 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HH22];
420 case BFD_RELOC_SPARC_PC_HM10:
421 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HM10];
423 case BFD_RELOC_SPARC_PC_LM22:
424 return &_bfd_sparc_elf_howto_table[R_SPARC_PC_LM22];
426 case BFD_RELOC_SPARC_WDISP16:
427 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP16];
429 case BFD_RELOC_SPARC_WDISP19:
430 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP19];
432 case BFD_RELOC_SPARC_7:
433 return &_bfd_sparc_elf_howto_table[R_SPARC_7];
435 case BFD_RELOC_SPARC_5:
436 return &_bfd_sparc_elf_howto_table[R_SPARC_5];
438 case BFD_RELOC_SPARC_6:
439 return &_bfd_sparc_elf_howto_table[R_SPARC_6];
441 case BFD_RELOC_SPARC_DISP64:
442 return &_bfd_sparc_elf_howto_table[R_SPARC_DISP64];
444 case BFD_RELOC_SPARC_PLT64:
445 return &_bfd_sparc_elf_howto_table[R_SPARC_PLT64];
447 case BFD_RELOC_SPARC_HIX22:
448 return &_bfd_sparc_elf_howto_table[R_SPARC_HIX22];
450 case BFD_RELOC_SPARC_LOX10:
451 return &_bfd_sparc_elf_howto_table[R_SPARC_LOX10];
453 case BFD_RELOC_SPARC_H44:
454 return &_bfd_sparc_elf_howto_table[R_SPARC_H44];
456 case BFD_RELOC_SPARC_M44:
457 return &_bfd_sparc_elf_howto_table[R_SPARC_M44];
459 case BFD_RELOC_SPARC_L44:
460 return &_bfd_sparc_elf_howto_table[R_SPARC_L44];
462 case BFD_RELOC_SPARC_REGISTER:
463 return &_bfd_sparc_elf_howto_table[R_SPARC_REGISTER];
465 case BFD_RELOC_SPARC_UA64:
466 return &_bfd_sparc_elf_howto_table[R_SPARC_UA64];
468 case BFD_RELOC_SPARC_UA16:
469 return &_bfd_sparc_elf_howto_table[R_SPARC_UA16];
471 case BFD_RELOC_SPARC_TLS_GD_HI22:
472 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_HI22];
474 case BFD_RELOC_SPARC_TLS_GD_LO10:
475 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_LO10];
477 case BFD_RELOC_SPARC_TLS_GD_ADD:
478 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_ADD];
480 case BFD_RELOC_SPARC_TLS_GD_CALL:
481 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_CALL];
483 case BFD_RELOC_SPARC_TLS_LDM_HI22:
484 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_HI22];
486 case BFD_RELOC_SPARC_TLS_LDM_LO10:
487 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_LO10];
489 case BFD_RELOC_SPARC_TLS_LDM_ADD:
490 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_ADD];
492 case BFD_RELOC_SPARC_TLS_LDM_CALL:
493 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_CALL];
495 case BFD_RELOC_SPARC_TLS_LDO_HIX22:
496 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_HIX22];
498 case BFD_RELOC_SPARC_TLS_LDO_LOX10:
499 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_LOX10];
501 case BFD_RELOC_SPARC_TLS_LDO_ADD:
502 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_ADD];
504 case BFD_RELOC_SPARC_TLS_IE_HI22:
505 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_HI22];
507 case BFD_RELOC_SPARC_TLS_IE_LO10:
508 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LO10];
510 case BFD_RELOC_SPARC_TLS_IE_LD:
511 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LD];
513 case BFD_RELOC_SPARC_TLS_IE_LDX:
514 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LDX];
516 case BFD_RELOC_SPARC_TLS_IE_ADD:
517 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_ADD];
519 case BFD_RELOC_SPARC_TLS_LE_HIX22:
520 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_HIX22];
522 case BFD_RELOC_SPARC_TLS_LE_LOX10:
523 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_LOX10];
525 case BFD_RELOC_SPARC_TLS_DTPMOD32:
526 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD32];
528 case BFD_RELOC_SPARC_TLS_DTPMOD64:
529 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD64];
531 case BFD_RELOC_SPARC_TLS_DTPOFF32:
532 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF32];
534 case BFD_RELOC_SPARC_TLS_DTPOFF64:
535 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF64];
537 case BFD_RELOC_SPARC_TLS_TPOFF32:
538 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF32];
540 case BFD_RELOC_SPARC_TLS_TPOFF64:
541 return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF64];
543 case BFD_RELOC_SPARC_GOTDATA_HIX22:
544 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_HIX22];
546 case BFD_RELOC_SPARC_GOTDATA_LOX10:
547 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_LOX10];
549 case BFD_RELOC_SPARC_GOTDATA_OP_HIX22:
550 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_HIX22];
552 case BFD_RELOC_SPARC_GOTDATA_OP_LOX10:
553 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_LOX10];
555 case BFD_RELOC_SPARC_GOTDATA_OP:
556 return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP];
558 case BFD_RELOC_SPARC_H34:
559 return &_bfd_sparc_elf_howto_table[R_SPARC_H34];
561 case BFD_RELOC_SPARC_SIZE32:
562 return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE32];
564 case BFD_RELOC_SPARC_SIZE64:
565 return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE64];
567 case BFD_RELOC_SPARC_WDISP10:
568 return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP10];
570 case BFD_RELOC_SPARC_JMP_IREL:
571 return &sparc_jmp_irel_howto;
573 case BFD_RELOC_SPARC_IRELATIVE:
574 return &sparc_irelative_howto;
576 case BFD_RELOC_VTABLE_INHERIT:
577 return &sparc_vtinherit_howto;
579 case BFD_RELOC_VTABLE_ENTRY:
580 return &sparc_vtentry_howto;
582 case BFD_RELOC_SPARC_REV32:
583 return &sparc_rev32_howto;
585 default:
586 break;
588 /* xgettext:c-format */
589 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, (int) code);
590 bfd_set_error (bfd_error_bad_value);
591 return NULL;
594 reloc_howto_type *
595 _bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
596 const char *r_name)
598 unsigned int i;
600 for (i = 0; i < ARRAY_SIZE (_bfd_sparc_elf_howto_table); i++)
601 if (_bfd_sparc_elf_howto_table[i].name != NULL
602 && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
603 return &_bfd_sparc_elf_howto_table[i];
605 if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
606 return &sparc_vtinherit_howto;
607 if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
608 return &sparc_vtentry_howto;
609 if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
610 return &sparc_rev32_howto;
612 return NULL;
615 reloc_howto_type *
616 _bfd_sparc_elf_info_to_howto_ptr (bfd *abfd ATTRIBUTE_UNUSED,
617 unsigned int r_type)
619 switch (r_type)
621 case R_SPARC_JMP_IREL:
622 return &sparc_jmp_irel_howto;
624 case R_SPARC_IRELATIVE:
625 return &sparc_irelative_howto;
627 case R_SPARC_GNU_VTINHERIT:
628 return &sparc_vtinherit_howto;
630 case R_SPARC_GNU_VTENTRY:
631 return &sparc_vtentry_howto;
633 case R_SPARC_REV32:
634 return &sparc_rev32_howto;
636 default:
637 if (r_type >= (unsigned int) R_SPARC_max_std)
639 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
640 abfd, r_type);
641 bfd_set_error (bfd_error_bad_value);
642 return NULL;
644 return &_bfd_sparc_elf_howto_table[r_type];
648 /* Both 32-bit and 64-bit sparc encode this in an identical manner,
649 so just take advantage of that. */
650 #define SPARC_ELF_R_TYPE(r_info) \
651 ((r_info) & 0xff)
653 bool
654 _bfd_sparc_elf_info_to_howto (bfd *abfd, arelent *cache_ptr,
655 Elf_Internal_Rela *dst)
657 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
659 if ((cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (abfd, r_type)) == NULL)
661 bfd_set_error (bfd_error_bad_value);
662 return false;
664 return true;
668 /* The nop opcode we use. */
669 #define SPARC_NOP 0x01000000
671 #define SPARC_INSN_BYTES 4
673 /* Is an undefined weak symbol resolved to 0 ?
674 Reference to an undefined weak symbol is resolved to 0 when
675 building an executable if it isn't dynamic and
676 1. Has non-GOT/non-PLT relocations in text section.
678 2. Has no GOT/PLT relocation. */
679 #define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
680 ((EH)->elf.root.type == bfd_link_hash_undefweak \
681 && bfd_link_executable (INFO) \
682 && (_bfd_sparc_elf_hash_table (INFO)->interp == NULL \
683 || !(INFO)->dynamic_undefined_weak \
684 || (EH)->has_non_got_reloc \
685 || !(EH)->has_got_reloc))
687 /* SPARC ELF linker hash entry. */
689 struct _bfd_sparc_elf_link_hash_entry
691 struct elf_link_hash_entry elf;
693 #define GOT_UNKNOWN 0
694 #define GOT_NORMAL 1
695 #define GOT_TLS_GD 2
696 #define GOT_TLS_IE 3
697 unsigned char tls_type;
699 /* Symbol has GOT or PLT relocations. */
700 unsigned int has_got_reloc : 1;
702 /* Symbol has old-style, non-relaxable GOT relocations. */
703 unsigned int has_old_style_got_reloc : 1;
705 /* Symbol has non-GOT/non-PLT relocations in text sections. */
706 unsigned int has_non_got_reloc : 1;
710 #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
712 struct _bfd_sparc_elf_obj_tdata
714 struct elf_obj_tdata root;
716 /* tls_type for each local got entry. */
717 char *local_got_tls_type;
719 /* TRUE if TLS GD relocs has been seen for this object. */
720 bool has_tlsgd;
723 #define _bfd_sparc_elf_tdata(abfd) \
724 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
726 #define _bfd_sparc_elf_local_got_tls_type(abfd) \
727 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
729 #define is_sparc_elf(bfd) \
730 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
731 && elf_tdata (bfd) != NULL \
732 && elf_object_id (bfd) == SPARC_ELF_DATA)
734 bool
735 _bfd_sparc_elf_mkobject (bfd *abfd)
737 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
738 SPARC_ELF_DATA);
741 static void
742 sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
744 bfd_put_32 (abfd, val, ptr);
747 static void
748 sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
750 bfd_put_64 (abfd, val, ptr);
753 static void
754 sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
756 const struct elf_backend_data *bed;
757 bfd_byte *loc;
759 bed = get_elf_backend_data (abfd);
760 BFD_ASSERT (s->reloc_count * bed->s->sizeof_rela < s->size);
761 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
762 bed->s->swap_reloca_out (abfd, rel, loc);
765 static bfd_vma
766 sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
767 bfd_vma rel_index ATTRIBUTE_UNUSED,
768 bfd_vma type ATTRIBUTE_UNUSED)
770 return ELF64_R_INFO (rel_index,
771 (in_rel ?
772 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
773 type) : type));
776 static bfd_vma
777 sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
778 bfd_vma rel_index, bfd_vma type)
780 return ELF32_R_INFO (rel_index, type);
783 static bfd_vma
784 sparc_elf_r_symndx_64 (bfd_vma r_info)
786 bfd_vma r_symndx = ELF32_R_SYM (r_info);
787 return (r_symndx >> 24);
790 static bfd_vma
791 sparc_elf_r_symndx_32 (bfd_vma r_info)
793 return ELF32_R_SYM (r_info);
796 /* PLT/GOT stuff */
798 #define PLT32_ENTRY_SIZE 12
799 #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
801 /* The first four entries in a 32-bit procedure linkage table are reserved,
802 and the initial contents are unimportant (we zero them out).
803 Subsequent entries look like this. See the SVR4 ABI SPARC
804 supplement to see how this works. */
806 /* sethi %hi(.-.plt0),%g1. We fill in the address later. */
807 #define PLT32_ENTRY_WORD0 0x03000000
808 /* b,a .plt0. We fill in the offset later. */
809 #define PLT32_ENTRY_WORD1 0x30800000
810 /* nop. */
811 #define PLT32_ENTRY_WORD2 SPARC_NOP
813 static int
814 sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
815 bfd_vma max ATTRIBUTE_UNUSED,
816 bfd_vma *r_offset)
818 bfd_put_32 (output_bfd,
819 PLT32_ENTRY_WORD0 + offset,
820 splt->contents + offset);
821 bfd_put_32 (output_bfd,
822 (PLT32_ENTRY_WORD1
823 + (((- (offset + 4)) >> 2) & 0x3fffff)),
824 splt->contents + offset + 4);
825 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
826 splt->contents + offset + 8);
828 *r_offset = offset;
830 return offset / PLT32_ENTRY_SIZE - 4;
833 /* Both the headers and the entries are icache aligned. */
834 #define PLT64_ENTRY_SIZE 32
835 #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
836 #define PLT64_LARGE_THRESHOLD 32768
838 static int
839 sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
840 bfd_vma max, bfd_vma *r_offset)
842 unsigned char *entry = splt->contents + offset;
843 const unsigned int nop = SPARC_NOP;
844 int plt_index;
846 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
848 unsigned int sethi, ba;
850 *r_offset = offset;
852 plt_index = (offset / PLT64_ENTRY_SIZE);
854 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
855 ba = 0x30680000
856 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
858 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
859 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
860 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
861 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
862 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
863 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
864 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
865 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
867 else
869 unsigned char *ptr;
870 unsigned int ldx;
871 int block, last_block, ofs, last_ofs, chunks_this_block;
872 const int insn_chunk_size = (6 * 4);
873 const int ptr_chunk_size = (1 * 8);
874 const int entries_per_block = 160;
875 const int block_size = entries_per_block * (insn_chunk_size
876 + ptr_chunk_size);
878 /* Entries 32768 and higher are grouped into blocks of 160.
879 The blocks are further subdivided into 160 sequences of
880 6 instructions and 160 pointers. If a block does not require
881 the full 160 entries, let's say it requires N, then there
882 will be N sequences of 6 instructions and N pointers. */
884 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
885 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
887 block = offset / block_size;
888 last_block = max / block_size;
889 if (block != last_block)
891 chunks_this_block = 160;
893 else
895 last_ofs = max % block_size;
896 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
899 ofs = offset % block_size;
901 plt_index = (PLT64_LARGE_THRESHOLD +
902 (block * 160) +
903 (ofs / insn_chunk_size));
905 ptr = splt->contents
906 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
907 + (block * block_size)
908 + (chunks_this_block * insn_chunk_size)
909 + (ofs / insn_chunk_size) * ptr_chunk_size;
911 *r_offset = (bfd_vma) (ptr - splt->contents);
913 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
915 /* mov %o7,%g5
916 call .+8
918 ldx [%o7+P],%g1
919 jmpl %o7+%g1,%g1
920 mov %g5,%o7 */
921 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
922 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
923 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
924 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
925 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
926 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
928 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
931 return plt_index - 4;
934 /* The format of the first PLT entry in a VxWorks executable. */
935 static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
937 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
938 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
939 0xc4008000, /* ld [ %g2 ], %g2 */
940 0x81c08000, /* jmp %g2 */
941 0x01000000 /* nop */
944 /* The format of subsequent PLT entries. */
945 static const bfd_vma sparc_vxworks_exec_plt_entry[] =
947 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
948 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
949 0xc2004000, /* ld [ %g1 ], %g1 */
950 0x81c04000, /* jmp %g1 */
951 0x01000000, /* nop */
952 0x03000000, /* sethi %hi(f@pltindex), %g1 */
953 0x10800000, /* b _PLT_resolve */
954 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
957 /* The format of the first PLT entry in a VxWorks shared object. */
958 static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
960 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
961 0x81c08000, /* jmp %g2 */
962 0x01000000 /* nop */
965 /* The format of subsequent PLT entries. */
966 static const bfd_vma sparc_vxworks_shared_plt_entry[] =
968 0x03000000, /* sethi %hi(f@got), %g1 */
969 0x82106000, /* or %g1, %lo(f@got), %g1 */
970 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
971 0x81c04000, /* jmp %g1 */
972 0x01000000, /* nop */
973 0x03000000, /* sethi %hi(f@pltindex), %g1 */
974 0x10800000, /* b _PLT_resolve */
975 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
978 #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
979 htab->put_word(bfd, val, ptr)
981 #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
982 htab->r_info(in_rel, index, type)
984 #define SPARC_ELF_R_SYMNDX(htab, r_info) \
985 htab->r_symndx(r_info)
987 #define SPARC_ELF_WORD_BYTES(htab) \
988 htab->bytes_per_word
990 #define SPARC_ELF_RELA_BYTES(htab) \
991 htab->bytes_per_rela
993 #define SPARC_ELF_DTPOFF_RELOC(htab) \
994 htab->dtpoff_reloc
996 #define SPARC_ELF_DTPMOD_RELOC(htab) \
997 htab->dtpmod_reloc
999 #define SPARC_ELF_TPOFF_RELOC(htab) \
1000 htab->tpoff_reloc
1002 #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
1003 htab->build_plt_entry (obfd, splt, off, max, r_off)
1005 /* Create an entry in an SPARC ELF linker hash table. */
1007 static struct bfd_hash_entry *
1008 link_hash_newfunc (struct bfd_hash_entry *entry,
1009 struct bfd_hash_table *table, const char *string)
1011 /* Allocate the structure if it has not already been allocated by a
1012 subclass. */
1013 if (entry == NULL)
1015 entry = bfd_hash_allocate (table,
1016 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1017 if (entry == NULL)
1018 return entry;
1021 /* Call the allocation method of the superclass. */
1022 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1023 if (entry != NULL)
1025 struct _bfd_sparc_elf_link_hash_entry *eh;
1027 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
1028 eh->tls_type = GOT_UNKNOWN;
1029 eh->has_got_reloc = 0;
1030 eh->has_non_got_reloc = 0;
1033 return entry;
1036 /* The name of the dynamic interpreter. This is put in the .interp
1037 section. */
1039 #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1040 #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1042 /* Compute a hash of a local hash entry. We use elf_link_hash_entry
1043 for local symbol so that we can handle local STT_GNU_IFUNC symbols
1044 as global symbol. We reuse indx and dynstr_index for local symbol
1045 hash since they aren't used by global symbols in this backend. */
1047 static hashval_t
1048 elf_sparc_local_htab_hash (const void *ptr)
1050 struct elf_link_hash_entry *h
1051 = (struct elf_link_hash_entry *) ptr;
1052 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1055 /* Compare local hash entries. */
1057 static int
1058 elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1060 struct elf_link_hash_entry *h1
1061 = (struct elf_link_hash_entry *) ptr1;
1062 struct elf_link_hash_entry *h2
1063 = (struct elf_link_hash_entry *) ptr2;
1065 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1068 /* Find and/or create a hash entry for local symbol. */
1070 static struct elf_link_hash_entry *
1071 elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1072 bfd *abfd, const Elf_Internal_Rela *rel,
1073 bool create)
1075 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1076 asection *sec = abfd->sections;
1077 unsigned long r_symndx;
1078 hashval_t h;
1079 void **slot;
1081 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1082 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1084 e.elf.indx = sec->id;
1085 e.elf.dynstr_index = r_symndx;
1086 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1087 create ? INSERT : NO_INSERT);
1089 if (!slot)
1090 return NULL;
1092 if (*slot)
1094 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1095 return &ret->elf;
1098 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1099 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1100 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1101 if (ret)
1103 memset (ret, 0, sizeof (*ret));
1104 ret->elf.indx = sec->id;
1105 ret->elf.dynstr_index = r_symndx;
1106 ret->elf.dynindx = -1;
1107 ret->elf.plt.offset = (bfd_vma) -1;
1108 ret->elf.got.offset = (bfd_vma) -1;
1109 *slot = ret;
1111 return &ret->elf;
1114 /* Destroy a SPARC ELF linker hash table. */
1116 static void
1117 _bfd_sparc_elf_link_hash_table_free (bfd *obfd)
1119 struct _bfd_sparc_elf_link_hash_table *htab
1120 = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
1122 if (htab->loc_hash_table)
1123 htab_delete (htab->loc_hash_table);
1124 if (htab->loc_hash_memory)
1125 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
1126 _bfd_elf_link_hash_table_free (obfd);
1129 /* Create a SPARC ELF linker hash table. */
1131 struct bfd_link_hash_table *
1132 _bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1134 struct _bfd_sparc_elf_link_hash_table *ret;
1135 size_t amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1137 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1138 if (ret == NULL)
1139 return NULL;
1141 if (ABI_64_P (abfd))
1143 ret->put_word = sparc_put_word_64;
1144 ret->r_info = sparc_elf_r_info_64;
1145 ret->r_symndx = sparc_elf_r_symndx_64;
1146 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1147 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1148 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1149 ret->word_align_power = 3;
1150 ret->align_power_max = 4;
1151 ret->bytes_per_word = 8;
1152 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1153 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1154 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
1156 ret->build_plt_entry = sparc64_plt_entry_build;
1157 ret->plt_header_size = PLT64_HEADER_SIZE;
1158 ret->plt_entry_size = PLT64_ENTRY_SIZE;
1160 else
1162 ret->put_word = sparc_put_word_32;
1163 ret->r_info = sparc_elf_r_info_32;
1164 ret->r_symndx = sparc_elf_r_symndx_32;
1165 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1166 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1167 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1168 ret->word_align_power = 2;
1169 ret->align_power_max = 3;
1170 ret->bytes_per_word = 4;
1171 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1172 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1173 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
1175 ret->build_plt_entry = sparc32_plt_entry_build;
1176 ret->plt_header_size = PLT32_HEADER_SIZE;
1177 ret->plt_entry_size = PLT32_ENTRY_SIZE;
1180 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1181 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1182 SPARC_ELF_DATA))
1184 free (ret);
1185 return NULL;
1188 ret->loc_hash_table = htab_try_create (1024,
1189 elf_sparc_local_htab_hash,
1190 elf_sparc_local_htab_eq,
1191 NULL);
1192 ret->loc_hash_memory = objalloc_create ();
1193 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1195 _bfd_sparc_elf_link_hash_table_free (abfd);
1196 return NULL;
1198 ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
1200 return &ret->elf.root;
1203 /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1204 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1205 hash table. */
1207 bool
1208 _bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1209 struct bfd_link_info *info)
1211 struct _bfd_sparc_elf_link_hash_table *htab;
1213 htab = _bfd_sparc_elf_hash_table (info);
1214 BFD_ASSERT (htab != NULL);
1216 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1217 return false;
1219 if (htab->elf.target_os == is_vxworks)
1221 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1222 return false;
1223 if (bfd_link_pic (info))
1225 htab->plt_header_size
1226 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1227 htab->plt_entry_size
1228 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1230 else
1232 htab->plt_header_size
1233 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1234 htab->plt_entry_size
1235 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1239 if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1240 || (!bfd_link_pic (info) && !htab->elf.srelbss))
1241 abort ();
1243 return true;
1246 static bool
1247 create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1249 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1250 struct elf_link_hash_table *htab = elf_hash_table (info);
1251 flagword flags, pltflags;
1252 asection *s;
1254 if (htab->irelifunc != NULL || htab->iplt != NULL)
1255 return true;
1257 flags = bed->dynamic_sec_flags;
1258 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1260 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1261 if (s == NULL
1262 || !bfd_set_section_alignment (s, bed->plt_alignment))
1263 return false;
1264 htab->iplt = s;
1266 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1267 flags | SEC_READONLY);
1268 if (s == NULL
1269 || !bfd_set_section_alignment (s, bed->s->log_file_align))
1270 return false;
1271 htab->irelplt = s;
1273 return true;
1276 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1278 void
1279 _bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
1280 struct elf_link_hash_entry *dir,
1281 struct elf_link_hash_entry *ind)
1283 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1285 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1286 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1288 if (ind->root.type == bfd_link_hash_indirect && dir->got.refcount <= 0)
1290 edir->tls_type = eind->tls_type;
1291 eind->tls_type = GOT_UNKNOWN;
1294 /* Copy has_got_reloc and has_non_got_reloc. */
1295 edir->has_got_reloc |= eind->has_got_reloc;
1296 edir->has_non_got_reloc |= eind->has_non_got_reloc;
1298 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1301 static int
1302 sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1303 int r_type, int is_local)
1305 if (! ABI_64_P (abfd)
1306 && r_type == R_SPARC_TLS_GD_HI22
1307 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1308 return R_SPARC_REV32;
1310 if (!bfd_link_executable (info))
1311 return r_type;
1313 switch (r_type)
1315 case R_SPARC_TLS_GD_HI22:
1316 return is_local ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_IE_HI22;
1317 case R_SPARC_TLS_GD_LO10:
1318 return is_local ? R_SPARC_TLS_LE_LOX10 : R_SPARC_TLS_IE_LO10;
1319 case R_SPARC_TLS_LDM_HI22:
1320 return R_SPARC_TLS_LE_HIX22;
1321 case R_SPARC_TLS_LDM_LO10:
1322 return R_SPARC_TLS_LE_LOX10;
1323 case R_SPARC_TLS_IE_HI22:
1324 return is_local ? R_SPARC_TLS_LE_HIX22 : r_type;
1325 case R_SPARC_TLS_IE_LO10:
1326 return is_local ? R_SPARC_TLS_LE_LOX10 : r_type;
1329 return r_type;
1332 /* Look through the relocs for a section during the first phase, and
1333 allocate space in the global offset table or procedure linkage
1334 table. */
1336 bool
1337 _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1338 asection *sec, const Elf_Internal_Rela *relocs)
1340 struct _bfd_sparc_elf_link_hash_table *htab;
1341 Elf_Internal_Shdr *symtab_hdr;
1342 struct elf_link_hash_entry **sym_hashes;
1343 const Elf_Internal_Rela *rel;
1344 const Elf_Internal_Rela *rel_end;
1345 asection *sreloc;
1346 int num_relocs;
1347 bool checked_tlsgd = false;
1349 if (bfd_link_relocatable (info))
1350 return true;
1352 htab = _bfd_sparc_elf_hash_table (info);
1353 BFD_ASSERT (htab != NULL);
1354 symtab_hdr = &elf_symtab_hdr (abfd);
1355 sym_hashes = elf_sym_hashes (abfd);
1357 sreloc = NULL;
1359 if (ABI_64_P (abfd))
1360 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
1361 else
1362 num_relocs = sec->reloc_count;
1364 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1366 if (htab->elf.dynobj == NULL)
1367 htab->elf.dynobj = abfd;
1368 if (!create_ifunc_sections (htab->elf.dynobj, info))
1369 return false;
1371 rel_end = relocs + num_relocs;
1372 for (rel = relocs; rel < rel_end; rel++)
1374 unsigned int r_type;
1375 unsigned int r_symndx;
1376 struct elf_link_hash_entry *h;
1377 struct _bfd_sparc_elf_link_hash_entry *eh;
1378 Elf_Internal_Sym *isym;
1380 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1381 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1383 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1385 /* xgettext:c-format */
1386 _bfd_error_handler (_("%pB: bad symbol index: %d"), abfd, r_symndx);
1387 return false;
1390 isym = NULL;
1391 if (r_symndx < symtab_hdr->sh_info)
1393 /* A local symbol. */
1394 isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache, abfd,
1395 r_symndx);
1396 if (isym == NULL)
1397 return false;
1399 /* Check relocation against local STT_GNU_IFUNC symbol. */
1400 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1402 h = elf_sparc_get_local_sym_hash (htab, abfd, rel, true);
1403 if (h == NULL)
1404 return false;
1406 /* Fake a STT_GNU_IFUNC symbol. */
1407 h->type = STT_GNU_IFUNC;
1408 h->def_regular = 1;
1409 h->ref_regular = 1;
1410 h->forced_local = 1;
1411 h->root.type = bfd_link_hash_defined;
1413 else
1414 h = NULL;
1416 else
1418 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1419 while (h->root.type == bfd_link_hash_indirect
1420 || h->root.type == bfd_link_hash_warning)
1421 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1424 if (h && h->type == STT_GNU_IFUNC && h->def_regular)
1426 h->ref_regular = 1;
1427 h->plt.refcount += 1;
1430 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1431 with R_SPARC_TLS_GD_HI22. */
1432 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1433 switch (r_type)
1435 case R_SPARC_TLS_GD_HI22:
1437 const Elf_Internal_Rela *relt;
1439 for (relt = rel + 1; relt < rel_end; relt++)
1440 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1441 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1442 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1443 break;
1444 checked_tlsgd = true;
1445 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1447 break;
1448 case R_SPARC_TLS_GD_LO10:
1449 case R_SPARC_TLS_GD_ADD:
1450 case R_SPARC_TLS_GD_CALL:
1451 checked_tlsgd = true;
1452 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = true;
1453 break;
1456 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
1457 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1459 switch (r_type)
1461 case R_SPARC_TLS_LDM_HI22:
1462 case R_SPARC_TLS_LDM_LO10:
1463 htab->tls_ldm_got.refcount += 1;
1464 if (eh != NULL)
1465 eh->has_got_reloc = 1;
1466 break;
1468 case R_SPARC_TLS_LE_HIX22:
1469 case R_SPARC_TLS_LE_LOX10:
1470 if (!bfd_link_executable (info))
1471 goto r_sparc_plt32;
1472 break;
1474 case R_SPARC_TLS_IE_HI22:
1475 case R_SPARC_TLS_IE_LO10:
1476 if (!bfd_link_executable (info))
1477 info->flags |= DF_STATIC_TLS;
1478 /* Fall through */
1480 case R_SPARC_GOT10:
1481 case R_SPARC_GOT13:
1482 case R_SPARC_GOT22:
1483 case R_SPARC_GOTDATA_HIX22:
1484 case R_SPARC_GOTDATA_LOX10:
1485 case R_SPARC_GOTDATA_OP_HIX22:
1486 case R_SPARC_GOTDATA_OP_LOX10:
1487 case R_SPARC_TLS_GD_HI22:
1488 case R_SPARC_TLS_GD_LO10:
1489 /* This symbol requires a global offset table entry. */
1491 int tls_type, old_tls_type;
1493 switch (r_type)
1495 case R_SPARC_TLS_GD_HI22:
1496 case R_SPARC_TLS_GD_LO10:
1497 tls_type = GOT_TLS_GD;
1498 break;
1499 case R_SPARC_TLS_IE_HI22:
1500 case R_SPARC_TLS_IE_LO10:
1501 tls_type = GOT_TLS_IE;
1502 break;
1503 default:
1504 tls_type = GOT_NORMAL;
1505 break;
1508 if (h != NULL)
1510 h->got.refcount += 1;
1511 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1513 else
1515 bfd_signed_vma *local_got_refcounts;
1517 /* This is a global offset table entry for a local symbol. */
1518 local_got_refcounts = elf_local_got_refcounts (abfd);
1519 if (local_got_refcounts == NULL)
1521 bfd_size_type size;
1523 size = symtab_hdr->sh_info;
1524 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1525 local_got_refcounts = ((bfd_signed_vma *)
1526 bfd_zalloc (abfd, size));
1527 if (local_got_refcounts == NULL)
1528 return false;
1529 elf_local_got_refcounts (abfd) = local_got_refcounts;
1530 _bfd_sparc_elf_local_got_tls_type (abfd)
1531 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1534 if (r_type != R_SPARC_GOTDATA_OP_HIX22
1535 && r_type != R_SPARC_GOTDATA_OP_LOX10)
1536 local_got_refcounts[r_symndx] += 1;
1538 old_tls_type
1539 = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1542 /* If a TLS symbol is accessed using IE at least once, there is no
1543 point in using the dynamic model for it. */
1544 if (old_tls_type != tls_type)
1546 if (old_tls_type == GOT_UNKNOWN)
1548 else if (old_tls_type == GOT_TLS_GD && tls_type == GOT_TLS_IE)
1550 else if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1551 tls_type = old_tls_type;
1552 else
1554 _bfd_error_handler
1555 /* xgettext:c-format */
1556 (_("%pB: `%s' accessed both as normal and thread local symbol"),
1557 abfd, h ? h->root.root.string : "<local>");
1558 return false;
1561 if (h != NULL)
1562 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1563 else
1564 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1568 if (!htab->elf.sgot
1569 && !_bfd_elf_create_got_section (htab->elf.dynobj, info))
1570 return false;
1572 if (eh != NULL)
1574 eh->has_got_reloc = 1;
1575 if (r_type == R_SPARC_GOT10
1576 || r_type == R_SPARC_GOT13
1577 || r_type == R_SPARC_GOT22)
1578 eh->has_old_style_got_reloc = 1;
1580 break;
1582 case R_SPARC_TLS_GD_CALL:
1583 case R_SPARC_TLS_LDM_CALL:
1584 if (bfd_link_executable (info))
1585 break;
1587 /* Essentially R_SPARC_WPLT30 relocs against __tls_get_addr. */
1588 h = (struct elf_link_hash_entry *)
1589 bfd_link_hash_lookup (info->hash, "__tls_get_addr", false,
1590 false, true);
1591 BFD_ASSERT (h != NULL);
1592 /* Fall through */
1594 case R_SPARC_WPLT30:
1595 case R_SPARC_PLT32:
1596 case R_SPARC_PLT64:
1597 case R_SPARC_HIPLT22:
1598 case R_SPARC_LOPLT10:
1599 case R_SPARC_PCPLT32:
1600 case R_SPARC_PCPLT22:
1601 case R_SPARC_PCPLT10:
1602 /* This symbol requires a procedure linkage table entry.
1603 We actually build the entry in adjust_dynamic_symbol,
1604 because this might be a case of linking PIC code without
1605 linking in any dynamic objects, in which case we don't
1606 need to generate a procedure linkage table after all. */
1608 if (h == NULL)
1610 if (! ABI_64_P (abfd))
1612 /* The Solaris native assembler will generate a WPLT30
1613 reloc for a local symbol if you assemble a call from
1614 one section to another when using -K pic. We treat
1615 it as WDISP30. */
1616 if (r_type == R_SPARC_PLT32)
1617 goto r_sparc_plt32;
1618 break;
1620 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1621 else if (r_type == R_SPARC_WPLT30)
1622 break;
1624 /* It does not make sense to have a procedure linkage
1625 table entry for a local symbol. */
1626 bfd_set_error (bfd_error_bad_value);
1627 return false;
1630 h->needs_plt = 1;
1632 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
1633 goto r_sparc_plt32;
1635 h->plt.refcount += 1;
1637 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1638 eh->has_got_reloc = 1;
1639 break;
1641 case R_SPARC_PC10:
1642 case R_SPARC_PC22:
1643 case R_SPARC_PC_HH22:
1644 case R_SPARC_PC_HM10:
1645 case R_SPARC_PC_LM22:
1646 if (h != NULL)
1647 h->non_got_ref = 1;
1649 if (h != NULL
1650 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1651 break;
1652 /* Fall through. */
1654 case R_SPARC_DISP8:
1655 case R_SPARC_DISP16:
1656 case R_SPARC_DISP32:
1657 case R_SPARC_DISP64:
1658 case R_SPARC_WDISP30:
1659 case R_SPARC_WDISP22:
1660 case R_SPARC_WDISP19:
1661 case R_SPARC_WDISP16:
1662 case R_SPARC_WDISP10:
1663 case R_SPARC_8:
1664 case R_SPARC_16:
1665 case R_SPARC_32:
1666 case R_SPARC_HI22:
1667 case R_SPARC_22:
1668 case R_SPARC_13:
1669 case R_SPARC_LO10:
1670 case R_SPARC_UA16:
1671 case R_SPARC_UA32:
1672 case R_SPARC_10:
1673 case R_SPARC_11:
1674 case R_SPARC_64:
1675 case R_SPARC_OLO10:
1676 case R_SPARC_HH22:
1677 case R_SPARC_HM10:
1678 case R_SPARC_LM22:
1679 case R_SPARC_7:
1680 case R_SPARC_5:
1681 case R_SPARC_6:
1682 case R_SPARC_HIX22:
1683 case R_SPARC_LOX10:
1684 case R_SPARC_H44:
1685 case R_SPARC_M44:
1686 case R_SPARC_L44:
1687 case R_SPARC_H34:
1688 case R_SPARC_UA64:
1689 if (h != NULL)
1690 h->non_got_ref = 1;
1692 if (eh != NULL && (sec->flags & SEC_CODE) != 0)
1693 eh->has_non_got_reloc = 1;
1695 r_sparc_plt32:
1696 if (h != NULL && !bfd_link_pic (info))
1698 /* We may need a .plt entry if the function this reloc
1699 refers to is in a shared lib. */
1700 h->plt.refcount += 1;
1703 /* If we are creating a shared library, and this is a reloc
1704 against a global symbol, or a non PC relative reloc
1705 against a local symbol, then we need to copy the reloc
1706 into the shared library. However, if we are linking with
1707 -Bsymbolic, we do not need to copy a reloc against a
1708 global symbol which is defined in an object we are
1709 including in the link (i.e., DEF_REGULAR is set). At
1710 this point we have not seen all the input files, so it is
1711 possible that DEF_REGULAR is not set now but will be set
1712 later (it is never cleared). In case of a weak definition,
1713 DEF_REGULAR may be cleared later by a strong definition in
1714 a shared library. We account for that possibility below by
1715 storing information in the relocs_copied field of the hash
1716 table entry. A similar situation occurs when creating
1717 shared libraries and symbol visibility changes render the
1718 symbol local.
1720 If on the other hand, we are creating an executable, we
1721 may need to keep relocations for symbols satisfied by a
1722 dynamic library if we manage to avoid copy relocs for the
1723 symbol. */
1724 if ((bfd_link_pic (info)
1725 && (sec->flags & SEC_ALLOC) != 0
1726 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1727 || (h != NULL
1728 && (! SYMBOLIC_BIND (info, h)
1729 || h->root.type == bfd_link_hash_defweak
1730 || !h->def_regular))))
1731 || (!bfd_link_pic (info)
1732 && (sec->flags & SEC_ALLOC) != 0
1733 && h != NULL
1734 && (h->root.type == bfd_link_hash_defweak
1735 || !h->def_regular))
1736 || (!bfd_link_pic (info)
1737 && h != NULL
1738 && h->type == STT_GNU_IFUNC))
1740 struct elf_dyn_relocs *p;
1741 struct elf_dyn_relocs **head;
1743 /* When creating a shared object, we must copy these
1744 relocs into the output file. We create a reloc
1745 section in dynobj and make room for the reloc. */
1746 if (sreloc == NULL)
1748 sreloc = _bfd_elf_make_dynamic_reloc_section
1749 (sec, htab->elf.dynobj, htab->word_align_power,
1750 abfd, /*rela?*/ true);
1752 if (sreloc == NULL)
1753 return false;
1756 /* If this is a global symbol, we count the number of
1757 relocations we need for this symbol. */
1758 if (h != NULL)
1759 head = &h->dyn_relocs;
1760 else
1762 /* Track dynamic relocs needed for local syms too.
1763 We really need local syms available to do this
1764 easily. Oh well. */
1765 asection *s;
1766 void *vpp;
1768 BFD_ASSERT (isym != NULL);
1769 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1770 if (s == NULL)
1771 s = sec;
1773 vpp = &elf_section_data (s)->local_dynrel;
1774 head = (struct elf_dyn_relocs **) vpp;
1777 p = *head;
1778 if (p == NULL || p->sec != sec)
1780 size_t amt = sizeof *p;
1781 p = ((struct elf_dyn_relocs *)
1782 bfd_alloc (htab->elf.dynobj, amt));
1783 if (p == NULL)
1784 return false;
1785 p->next = *head;
1786 *head = p;
1787 p->sec = sec;
1788 p->count = 0;
1789 p->pc_count = 0;
1792 p->count += 1;
1793 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1794 p->pc_count += 1;
1797 break;
1799 case R_SPARC_GNU_VTINHERIT:
1800 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1801 return false;
1802 break;
1804 case R_SPARC_GNU_VTENTRY:
1805 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1806 return false;
1807 break;
1809 case R_SPARC_REGISTER:
1810 /* Nothing to do. */
1811 break;
1813 default:
1814 break;
1818 return true;
1821 asection *
1822 _bfd_sparc_elf_gc_mark_hook (asection *sec,
1823 struct bfd_link_info *info,
1824 Elf_Internal_Rela *rel,
1825 struct elf_link_hash_entry *h,
1826 Elf_Internal_Sym *sym)
1828 if (h != NULL)
1829 switch (SPARC_ELF_R_TYPE (rel->r_info))
1831 case R_SPARC_GNU_VTINHERIT:
1832 case R_SPARC_GNU_VTENTRY:
1833 return NULL;
1836 if (!bfd_link_executable (info))
1838 switch (SPARC_ELF_R_TYPE (rel->r_info))
1840 case R_SPARC_TLS_GD_CALL:
1841 case R_SPARC_TLS_LDM_CALL:
1842 /* This reloc implicitly references __tls_get_addr. We know
1843 another reloc will reference the same symbol as the one
1844 on this reloc, so the real symbol and section will be
1845 gc marked when processing the other reloc. That lets
1846 us handle __tls_get_addr here. */
1847 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1848 false, false, true);
1849 BFD_ASSERT (h != NULL);
1850 h->mark = 1;
1851 if (h->is_weakalias)
1852 weakdef (h)->mark = 1;
1853 sym = NULL;
1857 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1860 static Elf_Internal_Rela *
1861 sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
1862 Elf_Internal_Rela *relend,
1863 bfd_vma offset)
1865 while (rel < relend)
1867 if (rel->r_offset == offset)
1868 return rel;
1869 rel++;
1871 return NULL;
1874 /* Remove undefined weak symbol from the dynamic symbol table if it
1875 is resolved to 0. */
1877 bool
1878 _bfd_sparc_elf_fixup_symbol (struct bfd_link_info *info,
1879 struct elf_link_hash_entry *h)
1881 if (h->dynindx != -1
1882 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
1883 _bfd_sparc_elf_hash_entry (h)))
1885 h->dynindx = -1;
1886 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1887 h->dynstr_index);
1889 return true;
1892 /* Adjust a symbol defined by a dynamic object and referenced by a
1893 regular object. The current definition is in some section of the
1894 dynamic object, but we're not including those sections. We have to
1895 change the definition to something the rest of the link can
1896 understand. */
1898 bool
1899 _bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1900 struct elf_link_hash_entry *h)
1902 struct _bfd_sparc_elf_link_hash_table *htab;
1903 asection *s, *srel;
1905 htab = _bfd_sparc_elf_hash_table (info);
1906 BFD_ASSERT (htab != NULL);
1908 /* Make sure we know what is going on here. */
1909 BFD_ASSERT (htab->elf.dynobj != NULL
1910 && (h->needs_plt
1911 || h->type == STT_GNU_IFUNC
1912 || h->is_weakalias
1913 || (h->def_dynamic
1914 && h->ref_regular
1915 && !h->def_regular)));
1917 /* If this is a function, put it in the procedure linkage table. We
1918 will fill in the contents of the procedure linkage table later
1919 (although we could actually do it here). The STT_NOTYPE
1920 condition is a hack specifically for the Oracle libraries
1921 delivered for Solaris; for some inexplicable reason, they define
1922 some of their functions as STT_NOTYPE when they really should be
1923 STT_FUNC. */
1924 if (h->type == STT_FUNC
1925 || h->type == STT_GNU_IFUNC
1926 || h->needs_plt
1927 || (h->type == STT_NOTYPE
1928 && (h->root.type == bfd_link_hash_defined
1929 || h->root.type == bfd_link_hash_defweak)
1930 && (h->root.u.def.section->flags & SEC_CODE) != 0))
1932 if (h->plt.refcount <= 0
1933 || (h->type != STT_GNU_IFUNC
1934 && (SYMBOL_CALLS_LOCAL (info, h)
1935 || (h->root.type == bfd_link_hash_undefweak
1936 && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT))))
1938 /* This case can occur if we saw a WPLT30 reloc in an input
1939 file, but the symbol was never referred to by a dynamic
1940 object, or if all references were garbage collected. In
1941 such a case, we don't actually need to build a procedure
1942 linkage table, and we can just do a WDISP30 reloc instead. */
1943 h->plt.offset = (bfd_vma) -1;
1944 h->needs_plt = 0;
1947 return true;
1949 else
1950 h->plt.offset = (bfd_vma) -1;
1952 /* If this is a weak symbol, and there is a real definition, the
1953 processor independent code will have arranged for us to see the
1954 real definition first, and we can just use the same value. */
1955 if (h->is_weakalias)
1957 struct elf_link_hash_entry *def = weakdef (h);
1958 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1959 h->root.u.def.section = def->root.u.def.section;
1960 h->root.u.def.value = def->root.u.def.value;
1961 return true;
1964 /* This is a reference to a symbol defined by a dynamic object which
1965 is not a function. */
1967 /* If we are creating a shared library, we must presume that the
1968 only references to the symbol are via the global offset table.
1969 For such cases we need not do anything here; the relocations will
1970 be handled correctly by relocate_section. */
1971 if (bfd_link_pic (info))
1972 return true;
1974 /* If there are no references to this symbol that do not use the
1975 GOT, we don't need to generate a copy reloc. */
1976 if (!h->non_got_ref)
1977 return true;
1979 /* If -z nocopyreloc was given, we won't generate them either. */
1980 if (info->nocopyreloc)
1982 h->non_got_ref = 0;
1983 return true;
1986 /* If we don't find any dynamic relocs in read-only sections, then
1987 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1988 if (!_bfd_elf_readonly_dynrelocs (h))
1990 h->non_got_ref = 0;
1991 return true;
1994 /* We must allocate the symbol in our .dynbss section, which will
1995 become part of the .bss section of the executable. There will be
1996 an entry for this symbol in the .dynsym section. The dynamic
1997 object will contain position independent code, so all references
1998 from the dynamic object to this symbol will go through the global
1999 offset table. The dynamic linker will use the .dynsym entry to
2000 determine the address it must put in the global offset table, so
2001 both the dynamic object and the regular object will refer to the
2002 same memory location for the variable. */
2004 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2005 to copy the initial value out of the dynamic object and into the
2006 runtime process image. We need to remember the offset into the
2007 .rel.bss section we are going to use. */
2008 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2010 s = htab->elf.sdynrelro;
2011 srel = htab->elf.sreldynrelro;
2013 else
2015 s = htab->elf.sdynbss;
2016 srel = htab->elf.srelbss;
2018 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2020 srel->size += SPARC_ELF_RELA_BYTES (htab);
2021 h->needs_copy = 1;
2024 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2027 /* Allocate space in .plt, .got and associated reloc sections for
2028 dynamic relocs. */
2030 static bool
2031 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2033 struct bfd_link_info *info;
2034 struct _bfd_sparc_elf_link_hash_table *htab;
2035 struct _bfd_sparc_elf_link_hash_entry *eh;
2036 struct elf_dyn_relocs *p;
2037 bool resolved_to_zero;
2039 if (h->root.type == bfd_link_hash_indirect)
2040 return true;
2042 info = (struct bfd_link_info *) inf;
2043 htab = _bfd_sparc_elf_hash_table (info);
2044 BFD_ASSERT (htab != NULL);
2046 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2047 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
2049 if ((htab->elf.dynamic_sections_created
2050 && h->plt.refcount > 0)
2051 || (h->type == STT_GNU_IFUNC
2052 && h->def_regular
2053 && h->ref_regular))
2055 /* Undefined weak syms won't yet be marked as dynamic. */
2056 if (h->root.type == bfd_link_hash_undefweak
2057 && !resolved_to_zero
2058 && h->dynindx == -1
2059 && !h->forced_local)
2061 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2062 return false;
2065 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
2066 || (h->type == STT_GNU_IFUNC
2067 && h->def_regular))
2069 asection *s = htab->elf.splt;
2071 if (s == NULL)
2072 s = htab->elf.iplt;
2074 /* Allocate room for the header. */
2075 if (s->size == 0)
2077 s->size = htab->plt_header_size;
2079 /* Allocate space for the .rela.plt.unloaded relocations. */
2080 if (htab->elf.target_os == is_vxworks
2081 && !bfd_link_pic (info))
2082 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2085 /* The procedure linkage table size is bounded by the magnitude
2086 of the offset we can describe in the entry. */
2087 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
2088 (((bfd_vma)1 << 31) << 1) : 0x400000))
2090 bfd_set_error (bfd_error_bad_value);
2091 return false;
2094 if (SPARC_ELF_WORD_BYTES(htab) == 8
2095 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2097 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2100 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2102 h->plt.offset = (s->size - (off * 8));
2104 else
2105 h->plt.offset = s->size;
2107 /* If this symbol is not defined in a regular file, and we are
2108 not generating a shared library, then set the symbol to this
2109 location in the .plt. This is required to make function
2110 pointers compare as equal between the normal executable and
2111 the shared library. */
2112 if (! bfd_link_pic (info)
2113 && !h->def_regular)
2115 h->root.u.def.section = s;
2116 h->root.u.def.value = h->plt.offset;
2119 /* Make room for this entry. */
2120 s->size += htab->plt_entry_size;
2122 /* There should be no PLT relocations against resolved undefined
2123 weak symbols in the executable. */
2124 if (!resolved_to_zero)
2126 /* We also need to make an entry in the .rela.plt section. */
2127 if (s == htab->elf.splt)
2128 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
2129 else
2130 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
2133 if (htab->elf.target_os == is_vxworks)
2135 /* Allocate space for the .got.plt entry. */
2136 htab->elf.sgotplt->size += 4;
2138 /* ...and for the .rela.plt.unloaded relocations. */
2139 if (!bfd_link_pic (info))
2140 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2143 else
2145 h->plt.offset = (bfd_vma) -1;
2146 h->needs_plt = 0;
2149 else
2151 h->plt.offset = (bfd_vma) -1;
2152 h->needs_plt = 0;
2155 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2156 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2157 if (h->got.refcount > 0
2158 && bfd_link_executable (info)
2159 && h->dynindx == -1
2160 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2161 h->got.offset = (bfd_vma) -1;
2162 else if (h->got.refcount > 0)
2164 asection *s;
2165 bool dyn;
2166 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2168 /* Undefined weak syms won't yet be marked as dynamic. */
2169 if (h->root.type == bfd_link_hash_undefweak
2170 && !resolved_to_zero
2171 && h->dynindx == -1
2172 && !h->forced_local)
2174 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2175 return false;
2178 s = htab->elf.sgot;
2179 h->got.offset = s->size;
2180 s->size += SPARC_ELF_WORD_BYTES (htab);
2181 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2182 if (tls_type == GOT_TLS_GD)
2183 s->size += SPARC_ELF_WORD_BYTES (htab);
2184 dyn = htab->elf.dynamic_sections_created;
2185 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2186 R_SPARC_TLS_GD_{HI22,LO10} needs one if local and two if global. */
2187 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
2188 || tls_type == GOT_TLS_IE
2189 || h->type == STT_GNU_IFUNC)
2190 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2191 else if (tls_type == GOT_TLS_GD)
2192 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
2193 else if ((WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)
2194 /* Even if the symbol isn't dynamic, we may generate a
2195 reloc for the dynamic linker in PIC mode. */
2196 || (h->dynindx == -1
2197 && !h->forced_local
2198 && h->root.type != bfd_link_hash_undefweak
2199 && bfd_link_pic (info)))
2200 /* No dynamic relocations are needed against resolved
2201 undefined weak symbols in an executable. */
2202 && !(h->root.type == bfd_link_hash_undefweak
2203 && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2204 || resolved_to_zero)))
2205 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2207 else
2208 h->got.offset = (bfd_vma) -1;
2210 if (h->dyn_relocs == NULL)
2211 return true;
2213 /* In the shared -Bsymbolic case, discard space allocated for
2214 dynamic pc-relative relocs against symbols which turn out to be
2215 defined in regular objects. For the normal shared case, discard
2216 space for pc-relative relocs that have become local due to symbol
2217 visibility changes. */
2219 if (bfd_link_pic (info))
2221 if (SYMBOL_CALLS_LOCAL (info, h))
2223 struct elf_dyn_relocs **pp;
2225 for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
2227 p->count -= p->pc_count;
2228 p->pc_count = 0;
2229 if (p->count == 0)
2230 *pp = p->next;
2231 else
2232 pp = &p->next;
2236 if (htab->elf.target_os == is_vxworks)
2238 struct elf_dyn_relocs **pp;
2240 for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
2242 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2243 *pp = p->next;
2244 else
2245 pp = &p->next;
2249 /* Also discard relocs on undefined weak syms with non-default
2250 visibility or in PIE. */
2251 if (h->dyn_relocs != NULL
2252 && h->root.type == bfd_link_hash_undefweak)
2254 /* An undefined weak symbol is never
2255 bound locally in a shared library. */
2257 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2258 || resolved_to_zero)
2260 if (h->non_got_ref)
2262 /* Keep dynamic non-GOT/non-PLT relocation so that we
2263 can branch to 0 without PLT. */
2264 struct elf_dyn_relocs **pp;
2266 for (pp = &h->dyn_relocs; (p = *pp) != NULL;)
2267 if (p->pc_count == 0)
2268 *pp = p->next;
2269 else
2271 /* Remove other relocations. */
2272 p->count = p->pc_count;
2273 pp = &p->next;
2276 if (h->dyn_relocs != NULL)
2278 /* Make sure undefined weak symbols are output
2279 as dynamic symbols in PIEs for dynamic non-GOT
2280 non-PLT reloations. */
2281 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2282 return false;
2285 else
2286 h->dyn_relocs = NULL;
2289 /* Make sure undefined weak symbols are output as a dynamic
2290 symbol in PIEs. */
2291 else if (h->dynindx == -1
2292 && !h->forced_local)
2294 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2295 return false;
2299 else
2301 /* For the non-shared case, discard space for relocs against
2302 symbols which turn out to need copy relocs or are not
2303 dynamic. */
2305 if ((!h->non_got_ref
2306 || (h->root.type == bfd_link_hash_undefweak
2307 && !resolved_to_zero))
2308 && ((h->def_dynamic
2309 && !h->def_regular)
2310 || (htab->elf.dynamic_sections_created
2311 && (h->root.type == bfd_link_hash_undefweak
2312 || h->root.type == bfd_link_hash_undefined))))
2314 /* Undefined weak syms won't yet be marked as dynamic. */
2315 if (h->root.type == bfd_link_hash_undefweak
2316 && !resolved_to_zero
2317 && h->dynindx == -1
2318 && !h->forced_local)
2320 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2321 return false;
2324 /* If that succeeded, we know we'll be keeping all the
2325 relocs. */
2326 if (h->dynindx != -1)
2327 goto keep;
2330 h->dyn_relocs = NULL;
2332 keep: ;
2335 /* Finally, allocate space. */
2336 for (p = h->dyn_relocs; p != NULL; p = p->next)
2338 asection *sreloc = elf_section_data (p->sec)->sreloc;
2339 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2342 return true;
2345 /* Allocate space in .plt, .got and associated reloc sections for
2346 local dynamic relocs. */
2348 static int
2349 allocate_local_dynrelocs (void **slot, void *inf)
2351 struct elf_link_hash_entry *h
2352 = (struct elf_link_hash_entry *) *slot;
2354 if (h->type != STT_GNU_IFUNC
2355 || !h->def_regular
2356 || !h->ref_regular
2357 || !h->forced_local
2358 || h->root.type != bfd_link_hash_defined)
2359 abort ();
2361 return allocate_dynrelocs (h, inf);
2364 /* Return true if the dynamic symbol for a given section should be
2365 omitted when creating a shared library. */
2367 bool
2368 _bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2369 struct bfd_link_info *info,
2370 asection *p)
2372 /* We keep the .got section symbol so that explicit relocations
2373 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2374 can be turned into relocations against the .got symbol. */
2375 if (strcmp (p->name, ".got") == 0)
2376 return false;
2378 return _bfd_elf_omit_section_dynsym_default (output_bfd, info, p);
2381 /* Set the sizes of the dynamic sections. */
2383 bool
2384 _bfd_sparc_elf_late_size_sections (bfd *output_bfd,
2385 struct bfd_link_info *info)
2387 struct _bfd_sparc_elf_link_hash_table *htab;
2388 bfd *dynobj;
2389 asection *s;
2390 bfd *ibfd;
2392 htab = _bfd_sparc_elf_hash_table (info);
2393 BFD_ASSERT (htab != NULL);
2394 dynobj = htab->elf.dynobj;
2395 if (dynobj == NULL)
2396 return true;
2398 if (elf_hash_table (info)->dynamic_sections_created)
2400 /* Set the contents of the .interp section to the interpreter. */
2401 if (bfd_link_executable (info) && !info->nointerp)
2403 s = bfd_get_linker_section (dynobj, ".interp");
2404 BFD_ASSERT (s != NULL);
2405 s->size = htab->dynamic_interpreter_size;
2406 s->contents = (unsigned char *) htab->dynamic_interpreter;
2407 htab->interp = s;
2411 /* Set up .got offsets for local syms, and space for local dynamic
2412 relocs. */
2413 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2415 bfd_signed_vma *local_got;
2416 bfd_signed_vma *end_local_got;
2417 char *local_tls_type;
2418 bfd_size_type locsymcount;
2419 Elf_Internal_Shdr *symtab_hdr;
2420 asection *srel;
2422 if (! is_sparc_elf (ibfd))
2423 continue;
2425 for (s = ibfd->sections; s != NULL; s = s->next)
2427 struct elf_dyn_relocs *p;
2429 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2431 if (!bfd_is_abs_section (p->sec)
2432 && bfd_is_abs_section (p->sec->output_section))
2434 /* Input section has been discarded, either because
2435 it is a copy of a linkonce section or due to
2436 linker script /DISCARD/, so we'll be discarding
2437 the relocs too. */
2439 else if (htab->elf.target_os == is_vxworks
2440 && strcmp (p->sec->output_section->name,
2441 ".tls_vars") == 0)
2443 /* Relocations in vxworks .tls_vars sections are
2444 handled specially by the loader. */
2446 else if (p->count != 0)
2448 srel = elf_section_data (p->sec)->sreloc;
2449 if (!htab->elf.dynamic_sections_created)
2450 srel = htab->elf.irelplt;
2451 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2452 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2454 info->flags |= DF_TEXTREL;
2455 info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
2456 p->sec->owner, p->sec);
2462 local_got = elf_local_got_refcounts (ibfd);
2463 if (!local_got)
2464 continue;
2466 symtab_hdr = &elf_symtab_hdr (ibfd);
2467 locsymcount = symtab_hdr->sh_info;
2468 end_local_got = local_got + locsymcount;
2469 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
2470 s = htab->elf.sgot;
2471 srel = htab->elf.srelgot;
2472 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2474 if (*local_got > 0)
2476 *local_got = s->size;
2477 s->size += SPARC_ELF_WORD_BYTES (htab);
2478 if (*local_tls_type == GOT_TLS_GD)
2479 s->size += SPARC_ELF_WORD_BYTES (htab);
2480 if (bfd_link_pic (info)
2481 || *local_tls_type == GOT_TLS_GD
2482 || *local_tls_type == GOT_TLS_IE)
2483 srel->size += SPARC_ELF_RELA_BYTES (htab);
2485 else
2486 *local_got = (bfd_vma) -1;
2490 if (htab->tls_ldm_got.refcount > 0)
2492 /* Allocate 2 got entries and 1 dynamic reloc for
2493 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
2494 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2495 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2496 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2498 else
2499 htab->tls_ldm_got.offset = -1;
2501 /* Allocate global sym .plt and .got entries, and space for global
2502 sym dynamic relocs. */
2503 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2505 /* Allocate .plt and .got entries, and space for local symbols. */
2506 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2508 if (! ABI_64_P (output_bfd)
2509 && htab->elf.target_os != is_vxworks
2510 && elf_hash_table (info)->dynamic_sections_created)
2512 /* Make space for the trailing nop in .plt. */
2513 if (htab->elf.splt->size > 0)
2514 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
2516 /* If the .got section is more than 0x1000 bytes, we add
2517 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2518 bit relocations have a greater chance of working.
2520 FIXME: Make this optimization work for 64-bit too. */
2521 if (htab->elf.sgot->size >= 0x1000
2522 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2523 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2526 /* The check_relocs and adjust_dynamic_symbol entry points have
2527 determined the sizes of the various dynamic sections. Allocate
2528 memory for them. */
2529 for (s = dynobj->sections; s != NULL; s = s->next)
2531 if ((s->flags & SEC_LINKER_CREATED) == 0)
2532 continue;
2534 if (s == htab->elf.splt
2535 || s == htab->elf.sgot
2536 || s == htab->elf.sdynbss
2537 || s == htab->elf.sdynrelro
2538 || s == htab->elf.iplt
2539 || s == htab->elf.sgotplt)
2541 /* Strip this section if we don't need it; see the
2542 comment below. */
2544 else if (startswith (s->name, ".rela"))
2546 if (s->size != 0)
2548 /* We use the reloc_count field as a counter if we need
2549 to copy relocs into the output file. */
2550 s->reloc_count = 0;
2553 else
2555 /* It's not one of our sections. */
2556 continue;
2559 if (s->size == 0)
2561 /* If we don't need this section, strip it from the
2562 output file. This is mostly to handle .rela.bss and
2563 .rela.plt. We must create both sections in
2564 create_dynamic_sections, because they must be created
2565 before the linker maps input sections to output
2566 sections. The linker does that before
2567 adjust_dynamic_symbol is called, and it is that
2568 function which decides whether anything needs to go
2569 into these sections. */
2570 s->flags |= SEC_EXCLUDE;
2571 continue;
2574 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2575 continue;
2577 /* Allocate memory for the section contents. Zero the memory
2578 for the benefit of .rela.plt, which has 4 unused entries
2579 at the beginning, and we don't want garbage. */
2580 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2581 if (s->contents == NULL)
2582 return false;
2585 if (elf_hash_table (info)->dynamic_sections_created)
2587 /* Add some entries to the .dynamic section. We fill in the
2588 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2589 must add the entries now so that we get the correct size for
2590 the .dynamic section. The DT_DEBUG entry is filled in by the
2591 dynamic linker and used by the debugger. */
2592 #define add_dynamic_entry(TAG, VAL) \
2593 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2595 if (!_bfd_elf_maybe_vxworks_add_dynamic_tags (output_bfd, info,
2596 true))
2597 return false;
2599 if (ABI_64_P (output_bfd))
2601 int reg;
2602 struct _bfd_sparc_elf_app_reg * app_regs;
2603 struct elf_strtab_hash *dynstr;
2604 struct elf_link_hash_table *eht = elf_hash_table (info);
2606 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2607 entries if needed. */
2608 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2609 dynstr = eht->dynstr;
2611 for (reg = 0; reg < 4; reg++)
2612 if (app_regs [reg].name != NULL)
2614 struct elf_link_local_dynamic_entry *entry, *e;
2616 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2617 return false;
2619 entry = (struct elf_link_local_dynamic_entry *)
2620 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2621 if (entry == NULL)
2622 return false;
2624 /* We cheat here a little bit: the symbol will not be local, so we
2625 put it at the end of the dynlocal linked list. We will fix it
2626 later on, as we have to fix other fields anyway. */
2627 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2628 entry->isym.st_size = 0;
2629 if (*app_regs [reg].name != '\0')
2630 entry->isym.st_name
2631 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, false);
2632 else
2633 entry->isym.st_name = 0;
2634 entry->isym.st_other = 0;
2635 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2636 STT_REGISTER);
2637 entry->isym.st_shndx = app_regs [reg].shndx;
2638 entry->isym.st_target_internal = 0;
2639 entry->next = NULL;
2640 entry->input_bfd = output_bfd;
2641 entry->input_indx = -1;
2643 if (eht->dynlocal == NULL)
2644 eht->dynlocal = entry;
2645 else
2647 for (e = eht->dynlocal; e->next; e = e->next)
2649 e->next = entry;
2651 eht->dynsymcount++;
2655 #undef add_dynamic_entry
2657 return true;
2660 bool
2661 _bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2663 if (!sec->used_by_bfd)
2665 struct _bfd_sparc_elf_section_data *sdata;
2666 size_t amt = sizeof (*sdata);
2668 sdata = bfd_zalloc (abfd, amt);
2669 if (sdata == NULL)
2670 return false;
2671 sec->used_by_bfd = sdata;
2674 return _bfd_elf_new_section_hook (abfd, sec);
2677 bool
2678 _bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2679 struct bfd_section *section,
2680 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2681 bool *again)
2683 if (bfd_link_relocatable (link_info))
2684 (*link_info->callbacks->einfo)
2685 (_("%P%F: --relax and -r may not be used together\n"));
2687 *again = false;
2688 sec_do_relax (section) = 1;
2689 return true;
2692 /* Return the base VMA address which should be subtracted from real addresses
2693 when resolving @dtpoff relocation.
2694 This is PT_TLS segment p_vaddr. */
2696 static bfd_vma
2697 dtpoff_base (struct bfd_link_info *info)
2699 /* If tls_sec is NULL, we should have signalled an error already. */
2700 if (elf_hash_table (info)->tls_sec == NULL)
2701 return 0;
2702 return elf_hash_table (info)->tls_sec->vma;
2705 /* Return the relocation value for @tpoff relocation
2706 if STT_TLS virtual address is ADDRESS. */
2708 static bfd_vma
2709 tpoff (struct bfd_link_info *info, bfd_vma address)
2711 struct elf_link_hash_table *htab = elf_hash_table (info);
2712 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
2713 bfd_vma static_tls_size;
2715 /* If tls_sec is NULL, we should have signalled an error already. */
2716 if (htab->tls_sec == NULL)
2717 return 0;
2719 /* Consider special static TLS alignment requirements. */
2720 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
2721 return address - static_tls_size - htab->tls_sec->vma;
2724 /* Return the relocation value for a %gdop relocation. */
2726 static bfd_vma
2727 gdopoff (struct bfd_link_info *info, bfd_vma address)
2729 struct elf_link_hash_table *htab = elf_hash_table (info);
2730 bfd_vma got_base;
2732 got_base = (htab->hgot->root.u.def.value
2733 + htab->hgot->root.u.def.section->output_offset
2734 + htab->hgot->root.u.def.section->output_section->vma);
2736 return address - got_base;
2739 /* Return whether H is local and its ADDRESS is within 4G of
2740 _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
2741 sethi, xor sequence. */
2743 static bool
2744 gdop_relative_offset_ok (struct bfd_link_info *info,
2745 struct elf_link_hash_entry *h,
2746 bfd_vma address ATTRIBUTE_UNUSED)
2748 if (!SYMBOL_REFERENCES_LOCAL (info, h))
2749 return false;
2750 /* If H is undefined, ADDRESS will be zero. We can't allow a
2751 relative offset to "zero" when producing PIEs or shared libs.
2752 Note that to get here with an undefined symbol it must also be
2753 hidden or internal visibility. */
2754 if (bfd_link_pic (info)
2755 && h != NULL
2756 && (h->root.type == bfd_link_hash_undefweak
2757 || h->root.type == bfd_link_hash_undefined))
2758 return false;
2759 #ifdef BFD64
2760 return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
2761 #else
2762 return true;
2763 #endif
2766 /* Relocate a SPARC ELF section. */
2769 _bfd_sparc_elf_relocate_section (bfd *output_bfd,
2770 struct bfd_link_info *info,
2771 bfd *input_bfd,
2772 asection *input_section,
2773 bfd_byte *contents,
2774 Elf_Internal_Rela *relocs,
2775 Elf_Internal_Sym *local_syms,
2776 asection **local_sections)
2778 struct _bfd_sparc_elf_link_hash_table *htab;
2779 Elf_Internal_Shdr *symtab_hdr;
2780 struct elf_link_hash_entry **sym_hashes;
2781 bfd_vma *local_got_offsets;
2782 bfd_vma got_base;
2783 asection *sreloc;
2784 Elf_Internal_Rela *rel;
2785 Elf_Internal_Rela *relend;
2786 int num_relocs;
2787 bool is_vxworks_tls;
2789 htab = _bfd_sparc_elf_hash_table (info);
2790 BFD_ASSERT (htab != NULL);
2791 symtab_hdr = &elf_symtab_hdr (input_bfd);
2792 sym_hashes = elf_sym_hashes (input_bfd);
2793 local_got_offsets = elf_local_got_offsets (input_bfd);
2795 if (elf_hash_table (info)->hgot == NULL)
2796 got_base = 0;
2797 else
2798 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2800 sreloc = elf_section_data (input_section)->sreloc;
2801 /* We have to handle relocations in vxworks .tls_vars sections
2802 specially, because the dynamic loader is 'weird'. */
2803 is_vxworks_tls = (htab->elf.target_os == is_vxworks
2804 && bfd_link_pic (info)
2805 && !strcmp (input_section->output_section->name,
2806 ".tls_vars"));
2808 rel = relocs;
2809 if (ABI_64_P (output_bfd))
2810 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
2811 else
2812 num_relocs = input_section->reloc_count;
2813 relend = relocs + num_relocs;
2814 for (; rel < relend; rel++)
2816 int r_type, tls_type;
2817 reloc_howto_type *howto;
2818 unsigned long r_symndx;
2819 struct elf_link_hash_entry *h;
2820 struct _bfd_sparc_elf_link_hash_entry *eh;
2821 Elf_Internal_Sym *sym;
2822 asection *sec;
2823 bfd_vma relocation, off;
2824 bfd_reloc_status_type r;
2825 bool is_plt = false;
2826 bool unresolved_reloc;
2827 bool resolved_to_zero;
2828 bool relative_reloc;
2830 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2831 if (r_type == R_SPARC_GNU_VTINHERIT
2832 || r_type == R_SPARC_GNU_VTENTRY)
2833 continue;
2835 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2837 bfd_set_error (bfd_error_bad_value);
2838 return false;
2841 howto = _bfd_sparc_elf_howto_table + r_type;
2842 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2843 h = NULL;
2844 sym = NULL;
2845 sec = NULL;
2846 unresolved_reloc = false;
2847 if (r_symndx < symtab_hdr->sh_info)
2849 sym = local_syms + r_symndx;
2850 sec = local_sections[r_symndx];
2851 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2853 if (!bfd_link_relocatable (info)
2854 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2856 /* Relocate against local STT_GNU_IFUNC symbol. */
2857 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
2858 rel, false);
2859 if (h == NULL)
2860 abort ();
2862 /* Set STT_GNU_IFUNC symbol value. */
2863 h->root.u.def.value = sym->st_value;
2864 h->root.u.def.section = sec;
2867 else
2869 bool warned, ignored;
2871 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2872 r_symndx, symtab_hdr, sym_hashes,
2873 h, sec, relocation,
2874 unresolved_reloc, warned, ignored);
2875 if (warned)
2877 /* To avoid generating warning messages about truncated
2878 relocations, set the relocation's address to be the same as
2879 the start of this section. */
2880 if (input_section->output_section != NULL)
2881 relocation = input_section->output_section->vma;
2882 else
2883 relocation = 0;
2887 if (sec != NULL && discarded_section (sec))
2888 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2889 rel, 1, relend, howto, 0, contents);
2891 if (bfd_link_relocatable (info))
2892 continue;
2894 if (h != NULL
2895 && h->type == STT_GNU_IFUNC
2896 && h->def_regular)
2898 asection *plt_sec;
2899 const char *name;
2901 if ((input_section->flags & SEC_ALLOC) == 0
2902 || h->plt.offset == (bfd_vma) -1)
2904 /* If this is a SHT_NOTE section without SHF_ALLOC, treat
2905 STT_GNU_IFUNC symbol as STT_FUNC. */
2906 if (elf_section_type (input_section) == SHT_NOTE)
2907 goto skip_ifunc;
2909 /* Dynamic relocs are not propagated for SEC_DEBUGGING
2910 sections because such sections are not SEC_ALLOC and
2911 thus ld.so will not process them. */
2912 if ((input_section->flags & SEC_ALLOC) == 0
2913 && (input_section->flags & SEC_DEBUGGING) != 0)
2914 continue;
2916 _bfd_error_handler
2917 /* xgettext:c-format */
2918 (_("%pB(%pA+%#" PRIx64 "): "
2919 "unresolvable %s relocation against symbol `%s'"),
2920 input_bfd,
2921 input_section,
2922 (uint64_t) rel->r_offset,
2923 howto->name,
2924 h->root.root.string);
2925 bfd_set_error (bfd_error_bad_value);
2926 return false;
2929 plt_sec = htab->elf.splt;
2930 if (! plt_sec)
2931 plt_sec =htab->elf.iplt;
2933 switch (r_type)
2935 case R_SPARC_GOTDATA_OP:
2936 continue;
2938 case R_SPARC_GOTDATA_OP_HIX22:
2939 case R_SPARC_GOTDATA_OP_LOX10:
2940 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
2941 ? R_SPARC_GOT22
2942 : R_SPARC_GOT10);
2943 howto = _bfd_sparc_elf_howto_table + r_type;
2944 /* Fall through. */
2946 case R_SPARC_GOT10:
2947 case R_SPARC_GOT13:
2948 case R_SPARC_GOT22:
2949 if (htab->elf.sgot == NULL)
2950 abort ();
2951 off = h->got.offset;
2952 if (off == (bfd_vma) -1)
2953 abort();
2954 relocation = htab->elf.sgot->output_offset + off - got_base;
2955 goto do_relocation;
2957 case R_SPARC_WPLT30:
2958 case R_SPARC_WDISP30:
2959 relocation = (plt_sec->output_section->vma
2960 + plt_sec->output_offset + h->plt.offset);
2961 goto do_relocation;
2963 case R_SPARC_32:
2964 case R_SPARC_64:
2965 if (bfd_link_pic (info) && h->non_got_ref)
2967 Elf_Internal_Rela outrel;
2968 bfd_vma offset;
2970 offset = _bfd_elf_section_offset (output_bfd, info,
2971 input_section,
2972 rel->r_offset);
2973 if (offset == (bfd_vma) -1
2974 || offset == (bfd_vma) -2)
2975 abort();
2977 outrel.r_offset = (input_section->output_section->vma
2978 + input_section->output_offset
2979 + offset);
2981 if (h->dynindx == -1
2982 || h->forced_local
2983 || bfd_link_executable (info))
2985 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
2986 0, R_SPARC_IRELATIVE);
2987 outrel.r_addend = relocation + rel->r_addend;
2989 else
2991 if (h->dynindx == -1)
2992 abort();
2993 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
2994 outrel.r_addend = rel->r_addend;
2997 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
2998 continue;
3001 relocation = (plt_sec->output_section->vma
3002 + plt_sec->output_offset + h->plt.offset);
3003 goto do_relocation;
3005 case R_SPARC_HI22:
3006 case R_SPARC_LO10:
3007 /* We should only see such relocs in static links. */
3008 if (bfd_link_pic (info))
3009 abort();
3010 relocation = (plt_sec->output_section->vma
3011 + plt_sec->output_offset + h->plt.offset);
3012 goto do_relocation;
3014 default:
3015 if (h->root.root.string)
3016 name = h->root.root.string;
3017 else
3018 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3019 NULL);
3020 _bfd_error_handler
3021 /* xgettext:c-format */
3022 (_("%pB: relocation %s against STT_GNU_IFUNC "
3023 "symbol `%s' isn't handled by %s"), input_bfd,
3024 _bfd_sparc_elf_howto_table[r_type].name,
3025 name, __func__);
3026 bfd_set_error (bfd_error_bad_value);
3027 return false;
3031 skip_ifunc:
3032 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
3033 resolved_to_zero = eh && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
3035 switch (r_type)
3037 case R_SPARC_GOTDATA_OP_HIX22:
3038 case R_SPARC_GOTDATA_OP_LOX10:
3039 if (gdop_relative_offset_ok (info, h, relocation))
3041 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3042 ? R_SPARC_GOTDATA_HIX22
3043 : R_SPARC_GOTDATA_LOX10);
3044 howto = _bfd_sparc_elf_howto_table + r_type;
3046 break;
3048 case R_SPARC_GOTDATA_OP:
3049 if (gdop_relative_offset_ok (info, h, relocation))
3051 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3053 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3054 relocation = 0x80000000 | (insn & 0x3e07c01f);
3055 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3057 /* If the symbol is global but not dynamic, an .rela.* slot has
3058 been allocated for it in the GOT so output R_SPARC_NONE here,
3059 if it isn't also subject to another, old-style GOT relocation.
3060 See also the handling of these GOT relocations just below. */
3061 if (h != NULL
3062 && h->dynindx == -1
3063 && !h->forced_local
3064 && h->root.type != bfd_link_hash_undefweak
3065 && !eh->has_old_style_got_reloc
3066 && (h->got.offset & 1) == 0
3067 && bfd_link_pic (info))
3069 asection *s = htab->elf.srelgot;
3070 Elf_Internal_Rela outrel;
3072 BFD_ASSERT (s != NULL);
3074 memset (&outrel, 0, sizeof outrel);
3075 sparc_elf_append_rela (output_bfd, s, &outrel);
3076 h->got.offset |= 1;
3079 continue;
3082 switch (r_type)
3084 case R_SPARC_GOTDATA_HIX22:
3085 case R_SPARC_GOTDATA_LOX10:
3086 relocation = gdopoff (info, relocation);
3087 break;
3089 case R_SPARC_GOTDATA_OP_HIX22:
3090 case R_SPARC_GOTDATA_OP_LOX10:
3091 case R_SPARC_GOT10:
3092 case R_SPARC_GOT13:
3093 case R_SPARC_GOT22:
3094 /* Relocation is to the entry for this symbol in the global
3095 offset table. */
3096 if (htab->elf.sgot == NULL)
3097 abort ();
3099 relative_reloc = false;
3100 if (h != NULL)
3102 bool dyn;
3104 off = h->got.offset;
3105 BFD_ASSERT (off != (bfd_vma) -1);
3106 dyn = elf_hash_table (info)->dynamic_sections_created;
3108 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3109 bfd_link_pic (info),
3111 || (bfd_link_pic (info)
3112 && SYMBOL_REFERENCES_LOCAL (info, h)))
3114 /* This is actually a static link, or it is a
3115 -Bsymbolic link and the symbol is defined
3116 locally, or the symbol was forced to be local
3117 because of a version file. We must initialize
3118 this entry in the global offset table. Since the
3119 offset must always be a multiple of 8 for 64-bit
3120 and 4 for 32-bit, we use the least significant bit
3121 to record whether we have initialized it already.
3123 When doing a dynamic link, we create a .rela.got
3124 relocation entry to initialize the value. This
3125 is done in the finish_dynamic_symbol routine. */
3126 if ((off & 1) != 0)
3127 off &= ~1;
3128 else
3130 /* If this symbol isn't dynamic in PIC mode, treat it
3131 like a local symbol in PIC mode below. */
3132 if (h->dynindx == -1
3133 && !h->forced_local
3134 && h->root.type != bfd_link_hash_undefweak
3135 && bfd_link_pic (info))
3136 relative_reloc = true;
3137 else
3138 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3139 htab->elf.sgot->contents + off);
3140 h->got.offset |= 1;
3143 else
3144 unresolved_reloc = false;
3146 else
3148 BFD_ASSERT (local_got_offsets != NULL
3149 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3151 off = local_got_offsets[r_symndx];
3153 /* The offset must always be a multiple of 8 on 64-bit and
3154 4 on 32-bit. We use the least significant bit to record
3155 whether we have already processed this entry. */
3156 if ((off & 1) != 0)
3157 off &= ~1;
3158 else
3160 /* For a local symbol in PIC mode, we need to generate a
3161 R_SPARC_RELATIVE reloc for the dynamic linker. */
3162 if (bfd_link_pic (info))
3163 relative_reloc = true;
3164 else
3165 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3166 htab->elf.sgot->contents + off);
3167 local_got_offsets[r_symndx] |= 1;
3171 if (relative_reloc)
3173 asection *s = htab->elf.srelgot;
3174 Elf_Internal_Rela outrel;
3176 BFD_ASSERT (s != NULL);
3178 outrel.r_offset = (htab->elf.sgot->output_section->vma
3179 + htab->elf.sgot->output_offset
3180 + off);
3181 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3182 0, R_SPARC_RELATIVE);
3183 outrel.r_addend = relocation;
3184 sparc_elf_append_rela (output_bfd, s, &outrel);
3185 /* Versions of glibc ld.so at least up to 2.26 wrongly
3186 add the section contents to the value calculated for
3187 a RELATIVE reloc. Zero the contents to work around
3188 this bug. */
3189 relocation = 0;
3190 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3191 htab->elf.sgot->contents + off);
3194 relocation = htab->elf.sgot->output_offset + off - got_base;
3195 break;
3197 case R_SPARC_PLT32:
3198 case R_SPARC_PLT64:
3199 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3201 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3202 goto r_sparc_plt32;
3204 /* Fall through. */
3206 case R_SPARC_WPLT30:
3207 case R_SPARC_HIPLT22:
3208 case R_SPARC_LOPLT10:
3209 case R_SPARC_PCPLT32:
3210 case R_SPARC_PCPLT22:
3211 case R_SPARC_PCPLT10:
3212 r_sparc_wplt30:
3213 /* Relocation is to the entry for this symbol in the
3214 procedure linkage table. */
3216 if (! ABI_64_P (output_bfd))
3218 /* The Solaris native assembler will generate a WPLT30 reloc
3219 for a local symbol if you assemble a call from one
3220 section to another when using -K pic. We treat it as
3221 WDISP30. */
3222 if (h == NULL)
3223 break;
3225 /* PR 7027: We need similar behaviour for 64-bit binaries. */
3226 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3227 break;
3228 else
3230 BFD_ASSERT (h != NULL);
3233 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3235 /* We didn't make a PLT entry for this symbol. This
3236 happens when statically linking PIC code, or when
3237 using -Bsymbolic. */
3238 break;
3241 relocation = (htab->elf.splt->output_section->vma
3242 + htab->elf.splt->output_offset
3243 + h->plt.offset);
3244 unresolved_reloc = false;
3245 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3247 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3248 is_plt = true;
3249 goto r_sparc_plt32;
3251 break;
3253 case R_SPARC_PC10:
3254 case R_SPARC_PC22:
3255 case R_SPARC_PC_HH22:
3256 case R_SPARC_PC_HM10:
3257 case R_SPARC_PC_LM22:
3258 if (h != NULL
3259 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3260 break;
3261 /* Fall through. */
3262 case R_SPARC_DISP8:
3263 case R_SPARC_DISP16:
3264 case R_SPARC_DISP32:
3265 case R_SPARC_DISP64:
3266 case R_SPARC_WDISP30:
3267 case R_SPARC_WDISP22:
3268 case R_SPARC_WDISP19:
3269 case R_SPARC_WDISP16:
3270 case R_SPARC_WDISP10:
3271 case R_SPARC_8:
3272 case R_SPARC_16:
3273 case R_SPARC_32:
3274 case R_SPARC_HI22:
3275 case R_SPARC_22:
3276 case R_SPARC_13:
3277 case R_SPARC_LO10:
3278 case R_SPARC_UA16:
3279 case R_SPARC_UA32:
3280 case R_SPARC_10:
3281 case R_SPARC_11:
3282 case R_SPARC_64:
3283 case R_SPARC_OLO10:
3284 case R_SPARC_HH22:
3285 case R_SPARC_HM10:
3286 case R_SPARC_LM22:
3287 case R_SPARC_7:
3288 case R_SPARC_5:
3289 case R_SPARC_6:
3290 case R_SPARC_HIX22:
3291 case R_SPARC_LOX10:
3292 case R_SPARC_H44:
3293 case R_SPARC_M44:
3294 case R_SPARC_L44:
3295 case R_SPARC_H34:
3296 case R_SPARC_UA64:
3297 r_sparc_plt32:
3298 if ((input_section->flags & SEC_ALLOC) == 0 || is_vxworks_tls)
3299 break;
3301 /* Copy dynamic function pointer relocations. Don't generate
3302 dynamic relocations against resolved undefined weak symbols
3303 in PIE. */
3304 if ((bfd_link_pic (info)
3305 && (h == NULL
3306 || !(h->root.type == bfd_link_hash_undefweak
3307 && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
3308 || resolved_to_zero)))
3309 && (! howto->pc_relative
3310 || !SYMBOL_CALLS_LOCAL (info, h)))
3311 || (!bfd_link_pic (info)
3312 && h != NULL
3313 && h->dynindx != -1
3314 && !h->non_got_ref
3315 && ((h->def_dynamic
3316 && !h->def_regular)
3317 || (h->root.type == bfd_link_hash_undefweak
3318 && !resolved_to_zero)
3319 || h->root.type == bfd_link_hash_undefined)))
3321 Elf_Internal_Rela outrel;
3322 bool skip, relocate = false;
3324 /* When generating a shared object, these relocations
3325 are copied into the output file to be resolved at run
3326 time. */
3328 BFD_ASSERT (sreloc != NULL);
3330 skip = false;
3332 outrel.r_offset =
3333 _bfd_elf_section_offset (output_bfd, info, input_section,
3334 rel->r_offset);
3335 if (outrel.r_offset == (bfd_vma) -1)
3336 skip = true;
3337 else if (outrel.r_offset == (bfd_vma) -2)
3338 skip = true, relocate = true;
3339 outrel.r_offset += (input_section->output_section->vma
3340 + input_section->output_offset);
3342 /* Optimize unaligned reloc usage now that we know where
3343 it finally resides. */
3344 switch (r_type)
3346 case R_SPARC_16:
3347 if (outrel.r_offset & 1)
3348 r_type = R_SPARC_UA16;
3349 break;
3350 case R_SPARC_UA16:
3351 if (!(outrel.r_offset & 1))
3352 r_type = R_SPARC_16;
3353 break;
3354 case R_SPARC_32:
3355 if (outrel.r_offset & 3)
3356 r_type = R_SPARC_UA32;
3357 break;
3358 case R_SPARC_UA32:
3359 if (!(outrel.r_offset & 3))
3360 r_type = R_SPARC_32;
3361 break;
3362 case R_SPARC_64:
3363 if (outrel.r_offset & 7)
3364 r_type = R_SPARC_UA64;
3365 break;
3366 case R_SPARC_UA64:
3367 if (!(outrel.r_offset & 7))
3368 r_type = R_SPARC_64;
3369 break;
3370 case R_SPARC_DISP8:
3371 case R_SPARC_DISP16:
3372 case R_SPARC_DISP32:
3373 case R_SPARC_DISP64:
3374 /* If the symbol is not dynamic, we should not keep
3375 a dynamic relocation. But an .rela.* slot has been
3376 allocated for it, output R_SPARC_NONE.
3377 FIXME: Add code tracking needed dynamic relocs as
3378 e.g. i386 has. */
3379 if (h->dynindx == -1)
3380 skip = true, relocate = true;
3381 break;
3384 if (skip)
3385 memset (&outrel, 0, sizeof outrel);
3386 /* h->dynindx may be -1 if the symbol was marked to
3387 become local. */
3388 else if (h != NULL
3389 && h->dynindx != -1
3390 && (_bfd_sparc_elf_howto_table[r_type].pc_relative
3391 || !bfd_link_pic (info)
3392 || !SYMBOLIC_BIND (info, h)
3393 || !h->def_regular))
3395 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3396 outrel.r_addend = rel->r_addend;
3398 else
3400 if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3401 || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
3403 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3404 0, R_SPARC_RELATIVE);
3405 outrel.r_addend = relocation + rel->r_addend;
3407 else
3409 long indx;
3411 outrel.r_addend = relocation + rel->r_addend;
3413 if (is_plt)
3414 sec = htab->elf.splt;
3416 if (bfd_is_abs_section (sec))
3417 indx = 0;
3418 else if (sec == NULL || sec->owner == NULL)
3420 bfd_set_error (bfd_error_bad_value);
3421 return false;
3423 else
3425 asection *osec;
3427 /* We are turning this relocation into one
3428 against a section symbol. It would be
3429 proper to subtract the symbol's value,
3430 osec->vma, from the emitted reloc addend,
3431 but ld.so expects buggy relocs. */
3432 osec = sec->output_section;
3433 indx = elf_section_data (osec)->dynindx;
3435 if (indx == 0)
3437 osec = htab->elf.text_index_section;
3438 indx = elf_section_data (osec)->dynindx;
3441 /* FIXME: we really should be able to link non-pic
3442 shared libraries. */
3443 if (indx == 0)
3445 BFD_FAIL ();
3446 _bfd_error_handler
3447 (_("%pB: probably compiled without -fPIC?"),
3448 input_bfd);
3449 bfd_set_error (bfd_error_bad_value);
3450 return false;
3454 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3455 r_type);
3459 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3461 /* This reloc will be computed at runtime, so there's no
3462 need to do anything now. */
3463 if (! relocate)
3464 continue;
3466 break;
3468 case R_SPARC_TLS_GD_HI22:
3469 case R_SPARC_TLS_GD_LO10:
3470 case R_SPARC_TLS_IE_HI22:
3471 case R_SPARC_TLS_IE_LO10:
3472 r_type = sparc_elf_tls_transition (info, input_bfd, r_type,
3473 h == NULL || h->dynindx == -1);
3474 if (r_type == R_SPARC_REV32)
3475 break;
3476 if (h != NULL)
3477 tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3478 else if (local_got_offsets)
3479 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3480 else
3481 tls_type = GOT_UNKNOWN;
3482 if (tls_type == GOT_TLS_IE)
3483 switch (r_type)
3485 case R_SPARC_TLS_GD_HI22:
3486 r_type = R_SPARC_TLS_IE_HI22;
3487 break;
3488 case R_SPARC_TLS_GD_LO10:
3489 r_type = R_SPARC_TLS_IE_LO10;
3490 break;
3493 if (r_type == R_SPARC_TLS_LE_HIX22)
3495 relocation = tpoff (info, relocation);
3496 break;
3498 if (r_type == R_SPARC_TLS_LE_LOX10)
3500 /* Change add into xor. */
3501 relocation = tpoff (info, relocation);
3502 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3503 contents + rel->r_offset)
3504 | 0x80182000), contents + rel->r_offset);
3505 break;
3508 if (h != NULL)
3510 off = h->got.offset;
3511 h->got.offset |= 1;
3513 else
3515 BFD_ASSERT (local_got_offsets != NULL);
3516 off = local_got_offsets[r_symndx];
3517 local_got_offsets[r_symndx] |= 1;
3520 r_sparc_tlsldm:
3521 if (htab->elf.sgot == NULL)
3522 abort ();
3524 if ((off & 1) != 0)
3525 off &= ~1;
3526 else
3528 Elf_Internal_Rela outrel;
3529 int dr_type, indx;
3531 if (htab->elf.srelgot == NULL)
3532 abort ();
3534 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3535 htab->elf.sgot->contents + off);
3536 outrel.r_offset = (htab->elf.sgot->output_section->vma
3537 + htab->elf.sgot->output_offset + off);
3538 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3539 if (r_type == R_SPARC_TLS_IE_HI22
3540 || r_type == R_SPARC_TLS_IE_LO10)
3541 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3542 else
3543 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3544 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3545 outrel.r_addend = relocation - dtpoff_base (info);
3546 else
3547 outrel.r_addend = 0;
3548 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
3549 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3551 if (r_type == R_SPARC_TLS_GD_HI22
3552 || r_type == R_SPARC_TLS_GD_LO10)
3554 if (indx == 0)
3556 BFD_ASSERT (! unresolved_reloc);
3557 SPARC_ELF_PUT_WORD (htab, output_bfd,
3558 relocation - dtpoff_base (info),
3559 (htab->elf.sgot->contents + off
3560 + SPARC_ELF_WORD_BYTES (htab)));
3562 else
3564 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3565 (htab->elf.sgot->contents + off
3566 + SPARC_ELF_WORD_BYTES (htab)));
3567 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3568 SPARC_ELF_DTPOFF_RELOC (htab));
3569 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
3570 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
3571 &outrel);
3574 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3576 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3577 (htab->elf.sgot->contents + off
3578 + SPARC_ELF_WORD_BYTES (htab)));
3582 if (off >= (bfd_vma) -2)
3583 abort ();
3585 relocation = htab->elf.sgot->output_offset + off - got_base;
3586 unresolved_reloc = false;
3587 howto = _bfd_sparc_elf_howto_table + r_type;
3588 break;
3590 case R_SPARC_TLS_LDM_HI22:
3591 case R_SPARC_TLS_LDM_LO10:
3592 /* LD -> LE */
3593 if (bfd_link_executable (info))
3595 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3596 continue;
3598 off = htab->tls_ldm_got.offset;
3599 htab->tls_ldm_got.offset |= 1;
3600 goto r_sparc_tlsldm;
3602 case R_SPARC_TLS_LDO_HIX22:
3603 case R_SPARC_TLS_LDO_LOX10:
3604 /* LD -> LE */
3605 if (bfd_link_executable (info))
3607 if (r_type == R_SPARC_TLS_LDO_HIX22)
3608 r_type = R_SPARC_TLS_LE_HIX22;
3609 else
3610 r_type = R_SPARC_TLS_LE_LOX10;
3612 else
3614 relocation -= dtpoff_base (info);
3615 break;
3617 /* Fall through. */
3619 case R_SPARC_TLS_LE_HIX22:
3620 case R_SPARC_TLS_LE_LOX10:
3621 if (!bfd_link_executable (info))
3623 Elf_Internal_Rela outrel;
3624 bfd_vma offset
3625 = _bfd_elf_section_offset (output_bfd, info, input_section,
3626 rel->r_offset);
3627 if (offset == (bfd_vma) -1 || offset == (bfd_vma) -2)
3628 memset (&outrel, 0, sizeof outrel);
3629 else
3631 outrel.r_offset = offset
3632 + input_section->output_section->vma
3633 + input_section->output_offset;
3634 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3635 outrel.r_addend
3636 = relocation - dtpoff_base (info) + rel->r_addend;
3639 BFD_ASSERT (sreloc != NULL);
3640 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3641 continue;
3643 relocation = tpoff (info, relocation);
3644 break;
3646 case R_SPARC_TLS_LDM_CALL:
3647 /* LD -> LE */
3648 if (bfd_link_executable (info))
3650 /* mov %g0, %o0 */
3651 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3652 continue;
3654 /* Fall through */
3656 case R_SPARC_TLS_GD_CALL:
3657 if (h != NULL)
3658 tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3659 else if (local_got_offsets)
3660 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3661 else
3662 tls_type = GOT_UNKNOWN;
3663 /* GD -> IE or LE */
3664 if (bfd_link_executable (info)
3665 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3667 Elf_Internal_Rela *rel2;
3668 bfd_vma insn;
3670 /* GD -> LE */
3671 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
3673 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3674 continue;
3677 /* GD -> IE */
3678 if (rel + 1 < relend
3679 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3680 && rel[1].r_offset == rel->r_offset + 4
3681 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3682 && (((insn = bfd_get_32 (input_bfd,
3683 contents + rel[1].r_offset))
3684 >> 25) & 0x1f) == 8)
3686 /* We have
3687 call __tls_get_addr, %tgd_call(foo)
3688 add %reg1, %reg2, %o0, %tgd_add(foo)
3689 and change it into IE:
3690 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3691 add %g7, %o0, %o0, %tie_add(foo).
3692 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3693 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3694 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3695 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3696 contents + rel->r_offset);
3697 bfd_put_32 (output_bfd, 0x9001c008,
3698 contents + rel->r_offset + 4);
3699 rel++;
3700 continue;
3703 /* We cannot just overwrite the delay slot instruction,
3704 as it might be what puts the %o0 argument to
3705 __tls_get_addr into place. So we have to transpose
3706 the delay slot with the add we patch in. */
3707 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3708 bfd_put_32 (output_bfd, insn,
3709 contents + rel->r_offset);
3710 bfd_put_32 (output_bfd, 0x9001c008,
3711 contents + rel->r_offset + 4);
3713 rel2 = rel;
3714 while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3715 rel->r_offset + 4))
3716 != NULL)
3718 /* If the instruction we moved has a relocation attached to
3719 it, adjust the offset so that it will apply to the correct
3720 instruction. */
3721 rel2->r_offset -= 4;
3723 continue;
3726 h = (struct elf_link_hash_entry *)
3727 bfd_link_hash_lookup (info->hash, "__tls_get_addr", false,
3728 false, true);
3729 BFD_ASSERT (h != NULL);
3730 r_type = R_SPARC_WPLT30;
3731 howto = _bfd_sparc_elf_howto_table + r_type;
3732 goto r_sparc_wplt30;
3734 case R_SPARC_TLS_GD_ADD:
3735 if (h != NULL)
3736 tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type;
3737 else if (local_got_offsets)
3738 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3739 else
3740 tls_type = GOT_UNKNOWN;
3741 /* GD -> IE or LE */
3742 if (bfd_link_executable (info) || tls_type == GOT_TLS_IE)
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 (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
3751 relocation = (insn & ~0x7c000) | 0x1c000;
3752 else
3753 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
3754 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3756 continue;
3758 case R_SPARC_TLS_LDM_ADD:
3759 /* LD -> LE */
3760 if (bfd_link_executable (info))
3761 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3762 continue;
3764 case R_SPARC_TLS_LDO_ADD:
3765 /* LD -> LE */
3766 if (bfd_link_executable (info))
3768 /* Change rs1 into %g7. */
3769 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3770 insn = (insn & ~0x7c000) | 0x1c000;
3771 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3773 continue;
3775 case R_SPARC_TLS_IE_LD:
3776 case R_SPARC_TLS_IE_LDX:
3777 /* IE -> LE */
3778 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
3780 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3781 int rs2 = insn & 0x1f;
3782 int rd = (insn >> 25) & 0x1f;
3784 if (rs2 == rd)
3785 relocation = SPARC_NOP;
3786 else
3787 relocation = 0x80100000 | (insn & 0x3e00001f);
3788 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3790 continue;
3792 case R_SPARC_TLS_IE_ADD:
3793 /* Totally useless relocation. */
3794 continue;
3796 case R_SPARC_TLS_DTPOFF32:
3797 case R_SPARC_TLS_DTPOFF64:
3798 relocation -= dtpoff_base (info);
3799 break;
3801 default:
3802 break;
3805 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3806 because such sections are not SEC_ALLOC and thus ld.so will
3807 not process them. */
3808 if (unresolved_reloc
3809 && !((input_section->flags & SEC_DEBUGGING) != 0
3810 && h->def_dynamic)
3811 && _bfd_elf_section_offset (output_bfd, info, input_section,
3812 rel->r_offset) != (bfd_vma) -1)
3813 _bfd_error_handler
3814 /* xgettext:c-format */
3815 (_("%pB(%pA+%#" PRIx64 "): "
3816 "unresolvable %s relocation against symbol `%s'"),
3817 input_bfd,
3818 input_section,
3819 (uint64_t) rel->r_offset,
3820 howto->name,
3821 h->root.root.string);
3823 r = bfd_reloc_continue;
3824 if (r_type == R_SPARC_OLO10)
3826 bfd_vma x;
3828 if (! ABI_64_P (output_bfd))
3829 abort ();
3831 relocation += rel->r_addend;
3832 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3834 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3835 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3836 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3838 r = bfd_check_overflow (howto->complain_on_overflow,
3839 howto->bitsize, howto->rightshift,
3840 bfd_arch_bits_per_address (input_bfd),
3841 relocation);
3843 else if (r_type == R_SPARC_WDISP16)
3845 bfd_vma x;
3847 relocation += rel->r_addend;
3848 relocation -= (input_section->output_section->vma
3849 + input_section->output_offset);
3850 relocation -= rel->r_offset;
3852 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3853 x |= ((((relocation >> 2) & 0xc000) << 6)
3854 | ((relocation >> 2) & 0x3fff));
3855 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3857 r = bfd_check_overflow (howto->complain_on_overflow,
3858 howto->bitsize, howto->rightshift,
3859 bfd_arch_bits_per_address (input_bfd),
3860 relocation);
3862 else if (r_type == R_SPARC_WDISP10)
3864 bfd_vma x;
3866 relocation += rel->r_addend;
3867 relocation -= (input_section->output_section->vma
3868 + input_section->output_offset);
3869 relocation -= rel->r_offset;
3871 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3872 x |= ((((relocation >> 2) & 0x300) << 11)
3873 | (((relocation >> 2) & 0xff) << 5));
3874 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3876 r = bfd_check_overflow (howto->complain_on_overflow,
3877 howto->bitsize, howto->rightshift,
3878 bfd_arch_bits_per_address (input_bfd),
3879 relocation);
3881 else if (r_type == R_SPARC_REV32)
3883 bfd_vma x;
3885 relocation = relocation + rel->r_addend;
3887 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3888 x = x + relocation;
3889 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
3890 r = bfd_reloc_ok;
3892 else if (r_type == R_SPARC_TLS_LDO_HIX22
3893 || r_type == R_SPARC_TLS_LE_HIX22)
3895 bfd_vma x;
3897 relocation += rel->r_addend;
3898 if (r_type == R_SPARC_TLS_LE_HIX22)
3899 relocation ^= MINUS_ONE;
3901 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3902 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3903 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3904 r = bfd_reloc_ok;
3906 else if (r_type == R_SPARC_TLS_LDO_LOX10
3907 || r_type == R_SPARC_TLS_LE_LOX10)
3909 bfd_vma x;
3911 relocation += rel->r_addend;
3912 relocation &= 0x3ff;
3913 if (r_type == R_SPARC_TLS_LE_LOX10)
3914 relocation |= 0x1c00;
3916 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3917 x = (x & ~(bfd_vma) 0x1fff) | relocation;
3918 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3920 r = bfd_reloc_ok;
3922 else if (r_type == R_SPARC_HIX22
3923 || r_type == R_SPARC_GOTDATA_HIX22
3924 || r_type == R_SPARC_GOTDATA_OP_HIX22)
3926 bfd_vma x;
3928 relocation += rel->r_addend;
3929 if (r_type == R_SPARC_HIX22
3930 || (bfd_signed_vma) relocation < 0)
3931 relocation = relocation ^ MINUS_ONE;
3933 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3934 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3935 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3937 r = bfd_check_overflow (howto->complain_on_overflow,
3938 howto->bitsize, howto->rightshift,
3939 bfd_arch_bits_per_address (input_bfd),
3940 relocation);
3942 else if (r_type == R_SPARC_LOX10
3943 || r_type == R_SPARC_GOTDATA_LOX10
3944 || r_type == R_SPARC_GOTDATA_OP_LOX10)
3946 bfd_vma x;
3948 relocation += rel->r_addend;
3949 if (r_type == R_SPARC_LOX10
3950 || (bfd_signed_vma) relocation < 0)
3951 relocation = (relocation & 0x3ff) | 0x1c00;
3952 else
3953 relocation = (relocation & 0x3ff);
3955 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3956 x = (x & ~(bfd_vma) 0x1fff) | relocation;
3957 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3959 r = bfd_reloc_ok;
3961 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
3962 && sec_do_relax (input_section)
3963 && rel->r_offset + 4 < input_section->size)
3965 #define G0 0
3966 #define O7 15
3967 #define XCC (2 << 20)
3968 #define COND(x) (((x)&0xf)<<25)
3969 #define CONDA COND(0x8)
3970 #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
3971 #define INSN_BA (F2(0,2) | CONDA)
3972 #define INSN_OR F3(2, 0x2, 0)
3973 #define INSN_NOP F2(0,4)
3975 bfd_vma x, y;
3977 /* If the instruction is a call with either:
3978 restore
3979 arithmetic instruction with rd == %o7
3980 where rs1 != %o7 and rs2 if it is register != %o7
3981 then we can optimize if the call destination is near
3982 by changing the call into a branch always. */
3983 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3984 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3985 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
3987 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
3988 || ((y & OP3(0x28)) == 0 /* arithmetic */
3989 && (y & RD(~0)) == RD(O7)))
3990 && (y & RS1(~0)) != RS1(O7)
3991 && ((y & F3I(~0))
3992 || (y & RS2(~0)) != RS2(O7)))
3994 bfd_vma reloc;
3996 reloc = relocation + rel->r_addend - rel->r_offset;
3997 reloc -= (input_section->output_section->vma
3998 + input_section->output_offset);
4000 /* Ensure the branch fits into simm22. */
4001 if ((reloc & 3) == 0
4002 && ((reloc & ~(bfd_vma)0x7fffff) == 0
4003 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4005 reloc >>= 2;
4007 /* Check whether it fits into simm19. */
4008 if (((reloc & 0x3c0000) == 0
4009 || (reloc & 0x3c0000) == 0x3c0000)
4010 && (ABI_64_P (output_bfd)
4011 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4012 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4013 else
4014 x = INSN_BA | (reloc & 0x3fffff); /* ba */
4015 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4016 r = bfd_reloc_ok;
4017 if (rel->r_offset >= 4
4018 && (y & (0xffffffff ^ RS1(~0)))
4019 == (INSN_OR | RD(O7) | RS2(G0)))
4021 bfd_vma z;
4022 unsigned int reg;
4024 z = bfd_get_32 (input_bfd,
4025 contents + rel->r_offset - 4);
4026 if ((z & (0xffffffff ^ RD(~0)))
4027 != (INSN_OR | RS1(O7) | RS2(G0)))
4028 continue;
4030 /* The sequence was
4031 or %o7, %g0, %rN
4032 call foo
4033 or %rN, %g0, %o7
4035 If call foo was replaced with ba, replace
4036 or %rN, %g0, %o7 with nop. */
4038 reg = (y & RS1(~0)) >> 14;
4039 if (reg != ((z & RD(~0)) >> 25)
4040 || reg == G0 || reg == O7)
4041 continue;
4043 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4044 contents + rel->r_offset + 4);
4052 if (r == bfd_reloc_continue)
4054 do_relocation:
4055 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4056 contents, rel->r_offset,
4057 relocation, rel->r_addend);
4059 if (r != bfd_reloc_ok)
4061 switch (r)
4063 default:
4064 case bfd_reloc_outofrange:
4065 abort ();
4066 case bfd_reloc_overflow:
4068 const char *name;
4070 /* The Solaris native linker silently disregards overflows.
4071 We don't, but this breaks stabs debugging info, whose
4072 relocations are only 32-bits wide. Ignore overflows in
4073 this case and also for discarded entries. */
4074 if ((r_type == R_SPARC_32
4075 || r_type == R_SPARC_UA32
4076 || r_type == R_SPARC_DISP32)
4077 && (((input_section->flags & SEC_DEBUGGING) != 0
4078 && strcmp (bfd_section_name (input_section),
4079 ".stab") == 0)
4080 || _bfd_elf_section_offset (output_bfd, info,
4081 input_section,
4082 rel->r_offset)
4083 == (bfd_vma)-1))
4084 break;
4086 if (h != NULL)
4088 /* Assume this is a call protected by other code that
4089 detect the symbol is undefined. If this is the case,
4090 we can safely ignore the overflow. If not, the
4091 program is hosed anyway, and a little warning isn't
4092 going to help. */
4093 if (h->root.type == bfd_link_hash_undefweak
4094 && howto->pc_relative)
4095 break;
4097 name = NULL;
4099 else
4101 name = bfd_elf_string_from_elf_section (input_bfd,
4102 symtab_hdr->sh_link,
4103 sym->st_name);
4104 if (name == NULL)
4105 return false;
4106 if (*name == '\0')
4107 name = bfd_section_name (sec);
4109 (*info->callbacks->reloc_overflow)
4110 (info, (h ? &h->root : NULL), name, howto->name,
4111 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4113 break;
4118 return true;
4121 /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4122 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4123 is the offset of the associated .got.plt entry from
4124 _GLOBAL_OFFSET_TABLE_. */
4126 static void
4127 sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4128 bfd_vma plt_offset, bfd_vma plt_index,
4129 bfd_vma got_offset)
4131 bfd_vma got_base;
4132 const bfd_vma *plt_entry;
4133 struct _bfd_sparc_elf_link_hash_table *htab;
4134 bfd_byte *loc;
4135 Elf_Internal_Rela rela;
4137 htab = _bfd_sparc_elf_hash_table (info);
4138 BFD_ASSERT (htab != NULL);
4140 if (bfd_link_pic (info))
4142 plt_entry = sparc_vxworks_shared_plt_entry;
4143 got_base = 0;
4145 else
4147 plt_entry = sparc_vxworks_exec_plt_entry;
4148 got_base = (htab->elf.hgot->root.u.def.value
4149 + htab->elf.hgot->root.u.def.section->output_offset
4150 + htab->elf.hgot->root.u.def.section->output_section->vma);
4153 /* Fill in the entry in the procedure linkage table. */
4154 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
4155 htab->elf.splt->contents + plt_offset);
4156 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
4157 htab->elf.splt->contents + plt_offset + 4);
4158 bfd_put_32 (output_bfd, plt_entry[2],
4159 htab->elf.splt->contents + plt_offset + 8);
4160 bfd_put_32 (output_bfd, plt_entry[3],
4161 htab->elf.splt->contents + plt_offset + 12);
4162 bfd_put_32 (output_bfd, plt_entry[4],
4163 htab->elf.splt->contents + plt_offset + 16);
4164 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
4165 htab->elf.splt->contents + plt_offset + 20);
4166 /* PC-relative displacement for a branch to the start of
4167 the PLT section. */
4168 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4169 & 0x003fffff),
4170 htab->elf.splt->contents + plt_offset + 24);
4171 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
4172 htab->elf.splt->contents + plt_offset + 28);
4174 /* Fill in the .got.plt entry, pointing initially at the
4175 second half of the PLT entry. */
4176 BFD_ASSERT (htab->elf.sgotplt != NULL);
4177 bfd_put_32 (output_bfd,
4178 htab->elf.splt->output_section->vma
4179 + htab->elf.splt->output_offset
4180 + plt_offset + 20,
4181 htab->elf.sgotplt->contents + got_offset);
4183 /* Add relocations to .rela.plt.unloaded. */
4184 if (!bfd_link_pic (info))
4186 loc = (htab->srelplt2->contents
4187 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4189 /* Relocate the initial sethi. */
4190 rela.r_offset = (htab->elf.splt->output_section->vma
4191 + htab->elf.splt->output_offset
4192 + plt_offset);
4193 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4194 rela.r_addend = got_offset;
4195 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4196 loc += sizeof (Elf32_External_Rela);
4198 /* Likewise the following or. */
4199 rela.r_offset += 4;
4200 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4201 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4202 loc += sizeof (Elf32_External_Rela);
4204 /* Relocate the .got.plt entry. */
4205 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4206 + htab->elf.sgotplt->output_offset
4207 + got_offset);
4208 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4209 rela.r_addend = plt_offset + 20;
4210 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4214 /* Finish up dynamic symbol handling. We set the contents of various
4215 dynamic sections here. */
4217 bool
4218 _bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4219 struct bfd_link_info *info,
4220 struct elf_link_hash_entry *h,
4221 Elf_Internal_Sym *sym)
4223 struct _bfd_sparc_elf_link_hash_table *htab;
4224 const struct elf_backend_data *bed;
4225 struct _bfd_sparc_elf_link_hash_entry *eh;
4226 bool resolved_to_zero;
4228 htab = _bfd_sparc_elf_hash_table (info);
4229 BFD_ASSERT (htab != NULL);
4230 bed = get_elf_backend_data (output_bfd);
4232 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4234 /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4235 resolved undefined weak symbols in executable so that their
4236 references have value 0 at run-time. */
4237 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
4239 if (h->plt.offset != (bfd_vma) -1)
4241 asection *splt;
4242 asection *srela;
4243 Elf_Internal_Rela rela;
4244 bfd_byte *loc;
4245 bfd_vma r_offset, got_offset;
4246 int rela_index;
4248 /* When building a static executable, use .iplt and
4249 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4250 if (htab->elf.splt != NULL)
4252 splt = htab->elf.splt;
4253 srela = htab->elf.srelplt;
4255 else
4257 splt = htab->elf.iplt;
4258 srela = htab->elf.irelplt;
4261 if (splt == NULL || srela == NULL)
4262 abort ();
4264 /* Fill in the entry in the .rela.plt section. */
4265 if (htab->elf.target_os == is_vxworks)
4267 /* Work out the index of this PLT entry. */
4268 rela_index = ((h->plt.offset - htab->plt_header_size)
4269 / htab->plt_entry_size);
4271 /* Calculate the offset of the associated .got.plt entry.
4272 The first three entries are reserved. */
4273 got_offset = (rela_index + 3) * 4;
4275 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4276 rela_index, got_offset);
4279 /* On VxWorks, the relocation points to the .got.plt entry,
4280 not the .plt entry. */
4281 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4282 + htab->elf.sgotplt->output_offset
4283 + got_offset);
4284 rela.r_addend = 0;
4285 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4286 R_SPARC_JMP_SLOT);
4288 else
4290 bool ifunc = false;
4292 /* Fill in the entry in the procedure linkage table. */
4293 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4294 h->plt.offset, splt->size,
4295 &r_offset);
4297 if (h == NULL
4298 || h->dynindx == -1
4299 || ((bfd_link_executable (info)
4300 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4301 && h->def_regular
4302 && h->type == STT_GNU_IFUNC))
4304 ifunc = true;
4305 BFD_ASSERT (h == NULL
4306 || (h->type == STT_GNU_IFUNC
4307 && h->def_regular
4308 && (h->root.type == bfd_link_hash_defined
4309 || h->root.type == bfd_link_hash_defweak)));
4312 rela.r_offset = r_offset
4313 + (splt->output_section->vma + splt->output_offset);
4314 if (ABI_64_P (output_bfd)
4315 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
4317 if (ifunc)
4319 rela.r_addend = (h->root.u.def.section->output_section->vma
4320 + h->root.u.def.section->output_offset
4321 + h->root.u.def.value);
4322 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4323 R_SPARC_IRELATIVE);
4325 else
4327 rela.r_addend = (-(h->plt.offset + 4)
4328 - splt->output_section->vma
4329 - splt->output_offset);
4330 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4331 R_SPARC_JMP_SLOT);
4334 else
4336 if (ifunc)
4338 rela.r_addend = (h->root.u.def.section->output_section->vma
4339 + h->root.u.def.section->output_offset
4340 + h->root.u.def.value);
4341 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4342 R_SPARC_JMP_IREL);
4344 else
4346 rela.r_addend = 0;
4347 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4348 R_SPARC_JMP_SLOT);
4353 /* Adjust for the first 4 reserved elements in the .plt section
4354 when setting the offset in the .rela.plt section.
4355 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4356 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4358 loc = srela->contents;
4359 loc += rela_index * bed->s->sizeof_rela;
4360 bed->s->swap_reloca_out (output_bfd, &rela, loc);
4362 if (!resolved_to_zero && !h->def_regular)
4364 /* Mark the symbol as undefined, rather than as defined in
4365 the .plt section. Leave the value alone. */
4366 sym->st_shndx = SHN_UNDEF;
4367 /* If the symbol is weak, we do need to clear the value.
4368 Otherwise, the PLT entry would provide a definition for
4369 the symbol even if the symbol wasn't defined anywhere,
4370 and so the symbol would never be NULL. */
4371 if (!h->ref_regular_nonweak)
4372 sym->st_value = 0;
4376 /* Don't generate dynamic GOT relocation against resolved undefined weak
4377 symbols in an executable. */
4378 if (h->got.offset != (bfd_vma) -1
4379 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4380 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
4381 && !(h->root.type == bfd_link_hash_undefweak
4382 && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
4383 || resolved_to_zero)))
4385 asection *sgot;
4386 asection *srela;
4387 Elf_Internal_Rela rela;
4389 /* This symbol has an entry in the GOT. Set it up. */
4391 sgot = htab->elf.sgot;
4392 srela = htab->elf.srelgot;
4393 BFD_ASSERT (sgot != NULL && srela != NULL);
4395 rela.r_offset = (sgot->output_section->vma
4396 + sgot->output_offset
4397 + (h->got.offset &~ (bfd_vma) 1));
4399 /* If this is a -Bsymbolic link, and the symbol is defined
4400 locally, we just want to emit a RELATIVE reloc. Likewise if
4401 the symbol was forced to be local because of a version file.
4402 The entry in the global offset table will already have been
4403 initialized in the relocate_section function. */
4404 if (! bfd_link_pic (info)
4405 && h->type == STT_GNU_IFUNC
4406 && h->def_regular)
4408 asection *plt;
4410 /* We load the GOT entry with the PLT entry. */
4411 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4412 SPARC_ELF_PUT_WORD (htab, output_bfd,
4413 (plt->output_section->vma
4414 + plt->output_offset + h->plt.offset),
4415 htab->elf.sgot->contents
4416 + (h->got.offset & ~(bfd_vma) 1));
4417 return true;
4420 if (bfd_link_pic (info)
4421 && (h->root.type == bfd_link_hash_defined
4422 || h->root.type == bfd_link_hash_defweak)
4423 && SYMBOL_REFERENCES_LOCAL (info, h))
4425 asection *sec = h->root.u.def.section;
4426 if (h->type == STT_GNU_IFUNC)
4427 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4428 else
4429 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
4430 rela.r_addend = (h->root.u.def.value
4431 + sec->output_section->vma
4432 + sec->output_offset);
4434 else
4436 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4437 rela.r_addend = 0;
4440 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4441 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4442 sparc_elf_append_rela (output_bfd, srela, &rela);
4445 if (h->needs_copy)
4447 asection *s;
4448 Elf_Internal_Rela rela;
4450 /* This symbols needs a copy reloc. Set it up. */
4451 BFD_ASSERT (h->dynindx != -1);
4453 rela.r_offset = (h->root.u.def.value
4454 + h->root.u.def.section->output_section->vma
4455 + h->root.u.def.section->output_offset);
4456 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4457 rela.r_addend = 0;
4458 if (h->root.u.def.section == htab->elf.sdynrelro)
4459 s = htab->elf.sreldynrelro;
4460 else
4461 s = htab->elf.srelbss;
4462 sparc_elf_append_rela (output_bfd, s, &rela);
4465 /* Mark some specially defined symbols as absolute. On VxWorks,
4466 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4467 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
4468 if (sym != NULL
4469 && (h == htab->elf.hdynamic
4470 || (htab->elf.target_os != is_vxworks
4471 && (h == htab->elf.hgot || h == htab->elf.hplt))))
4472 sym->st_shndx = SHN_ABS;
4474 return true;
4477 /* Finish up the dynamic sections. */
4479 static bool
4480 sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4481 bfd *dynobj, asection *sdyn,
4482 asection *splt ATTRIBUTE_UNUSED)
4484 struct _bfd_sparc_elf_link_hash_table *htab;
4485 const struct elf_backend_data *bed;
4486 bfd_byte *dyncon, *dynconend;
4487 size_t dynsize;
4488 int stt_regidx = -1;
4489 bool abi_64_p;
4491 htab = _bfd_sparc_elf_hash_table (info);
4492 BFD_ASSERT (htab != NULL);
4493 bed = get_elf_backend_data (output_bfd);
4494 dynsize = bed->s->sizeof_dyn;
4495 dynconend = sdyn->contents + sdyn->size;
4496 abi_64_p = ABI_64_P (output_bfd);
4497 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4499 Elf_Internal_Dyn dyn;
4500 bool size;
4502 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4504 if (htab->elf.target_os == is_vxworks && dyn.d_tag == DT_PLTGOT)
4506 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4507 not to the start of the PLT. */
4508 if (htab->elf.sgotplt)
4510 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4511 + htab->elf.sgotplt->output_offset);
4512 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4515 else if (htab->elf.target_os == is_vxworks
4516 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4517 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4518 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4520 if (stt_regidx == -1)
4522 stt_regidx =
4523 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4524 if (stt_regidx == -1)
4525 return false;
4527 dyn.d_un.d_val = stt_regidx++;
4528 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4530 else
4532 asection *s;
4534 switch (dyn.d_tag)
4536 case DT_PLTGOT:
4537 s = htab->elf.splt;
4538 size = false;
4539 break;
4540 case DT_PLTRELSZ:
4541 s = htab->elf.srelplt;
4542 size = true;
4543 break;
4544 case DT_JMPREL:
4545 s = htab->elf.srelplt;
4546 size = false;
4547 break;
4548 default:
4549 continue;
4552 if (s == NULL)
4553 dyn.d_un.d_val = 0;
4554 else
4556 if (!size)
4557 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4558 else
4559 dyn.d_un.d_val = s->size;
4561 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4564 return true;
4567 /* Install the first PLT entry in a VxWorks executable and make sure that
4568 .rela.plt.unloaded relocations have the correct symbol indexes. */
4570 static void
4571 sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4573 struct _bfd_sparc_elf_link_hash_table *htab;
4574 Elf_Internal_Rela rela;
4575 bfd_vma got_base;
4576 bfd_byte *loc;
4578 htab = _bfd_sparc_elf_hash_table (info);
4579 BFD_ASSERT (htab != NULL);
4581 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4582 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4583 + htab->elf.hgot->root.u.def.section->output_offset
4584 + htab->elf.hgot->root.u.def.value);
4586 /* Install the initial PLT entry. */
4587 bfd_put_32 (output_bfd,
4588 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
4589 htab->elf.splt->contents);
4590 bfd_put_32 (output_bfd,
4591 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
4592 htab->elf.splt->contents + 4);
4593 bfd_put_32 (output_bfd,
4594 sparc_vxworks_exec_plt0_entry[2],
4595 htab->elf.splt->contents + 8);
4596 bfd_put_32 (output_bfd,
4597 sparc_vxworks_exec_plt0_entry[3],
4598 htab->elf.splt->contents + 12);
4599 bfd_put_32 (output_bfd,
4600 sparc_vxworks_exec_plt0_entry[4],
4601 htab->elf.splt->contents + 16);
4603 loc = htab->srelplt2->contents;
4605 /* Add an unloaded relocation for the initial entry's "sethi". */
4606 rela.r_offset = (htab->elf.splt->output_section->vma
4607 + htab->elf.splt->output_offset);
4608 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4609 rela.r_addend = 8;
4610 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4611 loc += sizeof (Elf32_External_Rela);
4613 /* Likewise the following "or". */
4614 rela.r_offset += 4;
4615 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4616 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4617 loc += sizeof (Elf32_External_Rela);
4619 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4620 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4621 in which symbols were output. */
4622 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4624 Elf_Internal_Rela rel;
4626 /* The entry's initial "sethi" (against _G_O_T_). */
4627 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4628 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4629 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4630 loc += sizeof (Elf32_External_Rela);
4632 /* The following "or" (also against _G_O_T_). */
4633 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4634 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4635 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4636 loc += sizeof (Elf32_External_Rela);
4638 /* The .got.plt entry (against _P_L_T_). */
4639 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4640 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4641 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4642 loc += sizeof (Elf32_External_Rela);
4646 /* Install the first PLT entry in a VxWorks shared object. */
4648 static void
4649 sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4651 struct _bfd_sparc_elf_link_hash_table *htab;
4652 unsigned int i;
4654 htab = _bfd_sparc_elf_hash_table (info);
4655 BFD_ASSERT (htab != NULL);
4657 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4658 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
4659 htab->elf.splt->contents + i * 4);
4662 /* Finish up local dynamic symbol handling. We set the contents of
4663 various dynamic sections here. */
4665 static int
4666 finish_local_dynamic_symbol (void **slot, void *inf)
4668 struct elf_link_hash_entry *h
4669 = (struct elf_link_hash_entry *) *slot;
4670 struct bfd_link_info *info
4671 = (struct bfd_link_info *) inf;
4673 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4674 h, NULL);
4677 /* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4678 here since undefined weak symbol may not be dynamic and may not be
4679 called for _bfd_sparc_elf_finish_dynamic_symbol. */
4681 static bool
4682 pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
4683 void *inf)
4685 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4686 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4688 if (h->root.type != bfd_link_hash_undefweak
4689 || h->dynindx != -1)
4690 return true;
4692 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4693 h, NULL);
4696 bool
4697 _bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4699 bfd *dynobj;
4700 asection *sdyn;
4701 struct _bfd_sparc_elf_link_hash_table *htab;
4703 htab = _bfd_sparc_elf_hash_table (info);
4704 BFD_ASSERT (htab != NULL);
4705 dynobj = htab->elf.dynobj;
4707 /* We arranged in size_dynamic_sections to put the STT_REGISTER
4708 entries at the end of the dynlocal list, so they came at the end
4709 of the local symbols in the symtab. Except that they aren't
4710 STB_LOCAL, so we need to back up symtab->sh_info. */
4711 if (ABI_64_P (output_bfd)
4712 && elf_hash_table (info)->dynlocal)
4714 asection *dynsymsec = bfd_get_linker_section (dynobj, ".dynsym");
4715 struct elf_link_local_dynamic_entry *e;
4717 for (e = elf_hash_table (info)->dynlocal; e ; e = e->next)
4718 if (e->input_indx == -1)
4719 break;
4720 if (e)
4721 elf_section_data (dynsymsec->output_section)->this_hdr.sh_info
4722 = e->dynindx;
4725 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4727 if (elf_hash_table (info)->dynamic_sections_created)
4729 asection *splt;
4731 splt = htab->elf.splt;
4732 BFD_ASSERT (splt != NULL && sdyn != NULL);
4734 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4735 return false;
4737 /* Initialize the contents of the .plt section. */
4738 if (splt->size > 0)
4740 if (htab->elf.target_os == is_vxworks)
4742 if (bfd_link_pic (info))
4743 sparc_vxworks_finish_shared_plt (output_bfd, info);
4744 else
4745 sparc_vxworks_finish_exec_plt (output_bfd, info);
4747 else
4749 memset (splt->contents, 0, htab->plt_header_size);
4750 if (!ABI_64_P (output_bfd))
4751 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4752 splt->contents + splt->size - 4);
4756 if (elf_section_data (splt->output_section) != NULL)
4757 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4758 = ((htab->elf.target_os == is_vxworks
4759 || !ABI_64_P (output_bfd))
4760 ? 0 : htab->plt_entry_size);
4763 /* Set the first entry in the global offset table to the address of
4764 the dynamic section. */
4765 if (htab->elf.sgot && htab->elf.sgot->size > 0)
4767 bfd_vma val = (sdyn ?
4768 sdyn->output_section->vma + sdyn->output_offset :
4771 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
4774 if (htab->elf.sgot)
4775 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4776 SPARC_ELF_WORD_BYTES (htab);
4778 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4779 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4781 /* Fill PLT entries for undefined weak symbols in PIE. */
4782 if (bfd_link_pie (info))
4783 bfd_hash_traverse (&info->hash->table,
4784 pie_finish_undefweak_symbol,
4785 info);
4786 return true;
4790 /* Set the right machine number for a SPARC ELF file. */
4792 bool
4793 _bfd_sparc_elf_object_p (bfd *abfd)
4795 obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
4796 obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
4797 obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
4799 unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
4800 unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
4801 | ELF_SPARC_HWCAP_VIS3
4802 | ELF_SPARC_HWCAP_HPC);
4803 unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
4804 | ELF_SPARC_HWCAP_DES
4805 | ELF_SPARC_HWCAP_KASUMI
4806 | ELF_SPARC_HWCAP_CAMELLIA
4807 | ELF_SPARC_HWCAP_MD5
4808 | ELF_SPARC_HWCAP_SHA1
4809 | ELF_SPARC_HWCAP_SHA256
4810 | ELF_SPARC_HWCAP_SHA512
4811 | ELF_SPARC_HWCAP_MPMUL
4812 | ELF_SPARC_HWCAP_MONT
4813 | ELF_SPARC_HWCAP_CRC32C
4814 | ELF_SPARC_HWCAP_CBCOND
4815 | ELF_SPARC_HWCAP_PAUSE);
4816 unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
4817 | ELF_SPARC_HWCAP_IMA);
4818 unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
4819 | ELF_SPARC_HWCAP2_MWAIT
4820 | ELF_SPARC_HWCAP2_XMPMUL
4821 | ELF_SPARC_HWCAP2_XMONT);
4822 unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6
4823 | ELF_SPARC_HWCAP2_ONADDSUB
4824 | ELF_SPARC_HWCAP2_ONMUL
4825 | ELF_SPARC_HWCAP2_ONDIV
4826 | ELF_SPARC_HWCAP2_DICTUNP
4827 | ELF_SPARC_HWCAP2_FPCMPSHL
4828 | ELF_SPARC_HWCAP2_RLE
4829 | ELF_SPARC_HWCAP2_SHA3);
4831 if (ABI_64_P (abfd))
4833 unsigned long mach = bfd_mach_sparc_v9;
4835 if (hwcaps2->i & m8_hwcaps2_mask)
4836 mach = bfd_mach_sparc_v9m8;
4837 else if (hwcaps2->i & v9m_hwcaps2_mask)
4838 mach = bfd_mach_sparc_v9m;
4839 else if (hwcaps->i & v9v_hwcaps_mask)
4840 mach = bfd_mach_sparc_v9v;
4841 else if (hwcaps->i & v9e_hwcaps_mask)
4842 mach = bfd_mach_sparc_v9e;
4843 else if (hwcaps->i & v9d_hwcaps_mask)
4844 mach = bfd_mach_sparc_v9d;
4845 else if (hwcaps->i & v9c_hwcaps_mask)
4846 mach = bfd_mach_sparc_v9c;
4847 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4848 mach = bfd_mach_sparc_v9b;
4849 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4850 mach = bfd_mach_sparc_v9a;
4851 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4853 else
4855 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4857 if (hwcaps2->i & m8_hwcaps2_mask)
4858 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4859 bfd_mach_sparc_v8plusm8);
4860 else if (hwcaps2->i & v9m_hwcaps2_mask)
4861 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4862 bfd_mach_sparc_v8plusm);
4863 else if (hwcaps->i & v9v_hwcaps_mask)
4864 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4865 bfd_mach_sparc_v8plusv);
4866 else if (hwcaps->i & v9e_hwcaps_mask)
4867 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4868 bfd_mach_sparc_v8pluse);
4869 else if (hwcaps->i & v9d_hwcaps_mask)
4870 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4871 bfd_mach_sparc_v8plusd);
4872 else if (hwcaps->i & v9c_hwcaps_mask)
4873 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4874 bfd_mach_sparc_v8plusc);
4875 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4876 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4877 bfd_mach_sparc_v8plusb);
4878 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4879 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4880 bfd_mach_sparc_v8plusa);
4881 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4882 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4883 bfd_mach_sparc_v8plus);
4884 else
4885 return false;
4887 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4888 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4889 bfd_mach_sparc_sparclite_le);
4890 else
4891 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4895 /* Return address for Ith PLT stub in section PLT, for relocation REL
4896 or (bfd_vma) -1 if it should not be included. */
4898 bfd_vma
4899 _bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
4901 if (ABI_64_P (plt->owner))
4903 bfd_vma j;
4905 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
4906 if (i < PLT64_LARGE_THRESHOLD)
4907 return plt->vma + i * PLT64_ENTRY_SIZE;
4909 j = (i - PLT64_LARGE_THRESHOLD) % 160;
4910 i -= j;
4911 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
4913 else
4914 return rel->address;
4917 /* Merge backend specific data from an object file to the output
4918 object file when linking. */
4920 bool
4921 _bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
4923 bfd *obfd = info->output_bfd;
4924 obj_attribute *in_attr, *in_attrs;
4925 obj_attribute *out_attr, *out_attrs;
4927 if (!elf_known_obj_attributes_proc (obfd)[0].i)
4929 /* This is the first object. Copy the attributes. */
4930 _bfd_elf_copy_obj_attributes (ibfd, obfd);
4932 /* Use the Tag_null value to indicate the attributes have been
4933 initialized. */
4934 elf_known_obj_attributes_proc (obfd)[0].i = 1;
4936 return true;
4939 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
4940 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
4942 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
4943 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
4945 out_attr->i |= in_attr->i;
4946 out_attr->type = 1;
4948 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
4949 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
4951 out_attr->i |= in_attr->i;
4952 out_attr->type = 1;
4954 /* Merge Tag_compatibility attributes and any common GNU ones. */
4955 _bfd_elf_merge_object_attributes (ibfd, info);
4957 return true;