1 /* SPARC-specific support for ELF
2 Copyright (C) 2005-2017 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. */
28 #include "libiberty.h"
30 #include "elf/sparc.h"
31 #include "opcode/sparc.h"
32 #include "elfxx-sparc.h"
33 #include "elf-vxworks.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
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)
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;
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)
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)
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;
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)
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)
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;
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)
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)
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;
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)
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)
204 insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
205 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
210 static reloc_howto_type _bfd_sparc_elf_howto_table[] =
212 HOWTO(R_SPARC_NONE, 0,3, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
213 HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
214 HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
215 HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
216 HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
217 HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
218 HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
219 HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
220 HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
221 HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
222 HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
223 HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
224 HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
225 HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
226 HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
227 HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
228 HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
229 HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
230 HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
231 HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
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, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
236 HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
237 HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
238 HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
239 HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
240 HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
241 HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
242 HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
243 HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
244 HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE),
245 HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE),
246 HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE),
247 HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE),
248 HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE),
249 HOWTO(R_SPARC_PC_HH22, 42,2,22,TRUE, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", FALSE,0,0x003fffff,TRUE),
250 HOWTO(R_SPARC_PC_HM10, 32,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", FALSE,0,0x000003ff,TRUE),
251 HOWTO(R_SPARC_PC_LM22, 10,2,22,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", FALSE,0,0x003fffff,TRUE),
252 HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
253 HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
254 HOWTO(R_SPARC_UNUSED_42, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",FALSE,0,0x00000000,TRUE),
255 HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
256 HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
257 HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
258 HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE),
259 HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE),
260 HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE),
261 HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE),
262 HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE),
263 HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE),
264 HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE),
265 HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE),
266 HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE),
267 HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
268 HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE),
269 HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE),
270 HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",FALSE,0,0x00000000,TRUE),
271 HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE),
272 HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE),
273 HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE),
274 HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",FALSE,0,0x00000000,TRUE),
275 HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE),
276 HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE),
277 HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE),
278 HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",FALSE,0,0x00000000,TRUE),
279 HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE),
280 HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE),
281 HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",FALSE,0,0x00000000,TRUE),
282 HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",FALSE,0,0x00000000,TRUE),
283 HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",FALSE,0,0x00000000,TRUE),
284 HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE),
285 HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE),
286 HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",FALSE,0,0x00000000,TRUE),
287 HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",FALSE,0,0x00000000,TRUE),
288 HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE),
289 HOWTO(R_SPARC_TLS_DTPOFF64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",FALSE,0,MINUS_ONE,TRUE),
290 HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE),
291 HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE),
292 HOWTO(R_SPARC_GOTDATA_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",FALSE,0,0x003fffff, FALSE),
293 HOWTO(R_SPARC_GOTDATA_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",FALSE,0,0x000003ff, FALSE),
294 HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",FALSE,0,0x003fffff, FALSE),
295 HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",FALSE,0,0x000003ff, FALSE),
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_H34,12,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc,"R_SPARC_H34",FALSE,0,0x003fffff,FALSE),
298 HOWTO(R_SPARC_SIZE32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE32",FALSE,0,0xffffffff,TRUE),
299 HOWTO(R_SPARC_SIZE64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE64",FALSE,0,MINUS_ONE, TRUE),
300 HOWTO(R_SPARC_WDISP10,2,2,10,TRUE, 0,complain_overflow_signed,sparc_elf_wdisp10_reloc,"R_SPARC_WDISP10",FALSE,0,0x00000000,TRUE),
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, 0,2,0,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, 0,2,0,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, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE);
314 _bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
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. */
322 return &_bfd_sparc_elf_howto_table[R_SPARC_NONE];
325 return &_bfd_sparc_elf_howto_table[R_SPARC_8];
328 return &_bfd_sparc_elf_howto_table[R_SPARC_16];
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];
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];
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;
588 bfd_set_error (bfd_error_bad_value);
593 _bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
599 i < (sizeof (_bfd_sparc_elf_howto_table)
600 / sizeof (_bfd_sparc_elf_howto_table[0]));
602 if (_bfd_sparc_elf_howto_table[i].name != NULL
603 && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
604 return &_bfd_sparc_elf_howto_table[i];
606 if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
607 return &sparc_vtinherit_howto;
608 if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
609 return &sparc_vtentry_howto;
610 if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
611 return &sparc_rev32_howto;
617 _bfd_sparc_elf_info_to_howto_ptr (unsigned int 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;
634 return &sparc_rev32_howto;
637 if (r_type >= (unsigned int) R_SPARC_max_std)
639 _bfd_error_handler (_("invalid relocation type %d"), (int) r_type);
640 r_type = R_SPARC_NONE;
642 return &_bfd_sparc_elf_howto_table[r_type];
646 /* Both 32-bit and 64-bit sparc encode this in an identical manner,
647 so just take advantage of that. */
648 #define SPARC_ELF_R_TYPE(r_info) \
652 _bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
653 Elf_Internal_Rela *dst)
655 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
657 cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type);
661 /* The nop opcode we use. */
662 #define SPARC_NOP 0x01000000
664 #define SPARC_INSN_BYTES 4
666 /* Is an undefined weak symbol resolved to 0 ?
667 Reference to an undefined weak symbol is resolved to 0 when
668 building an executable if it isn't dynamic and
669 1. Has non-GOT/non-PLT relocations in text section.
671 2. Has no GOT/PLT relocation. */
672 #define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \
673 ((EH)->elf.root.type == bfd_link_hash_undefweak \
674 && bfd_link_executable (INFO) \
675 && (_bfd_sparc_elf_hash_table (INFO)->interp == NULL \
676 || !(EH)->has_got_reloc \
677 || (EH)->has_non_got_reloc \
678 || !(INFO)->dynamic_undefined_weak))
680 /* SPARC ELF linker hash entry. */
682 struct _bfd_sparc_elf_link_hash_entry
684 struct elf_link_hash_entry elf;
686 /* Track dynamic relocs copied for this symbol. */
687 struct elf_dyn_relocs *dyn_relocs;
689 #define GOT_UNKNOWN 0
693 unsigned char tls_type;
695 /* Symbol has GOT or PLT relocations. */
696 unsigned int has_got_reloc : 1;
698 /* Symbol has non-GOT/non-PLT relocations in text sections. */
699 unsigned int has_non_got_reloc : 1;
703 #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
705 struct _bfd_sparc_elf_obj_tdata
707 struct elf_obj_tdata root;
709 /* tls_type for each local got entry. */
710 char *local_got_tls_type;
712 /* TRUE if TLS GD relocs has been seen for this object. */
713 bfd_boolean has_tlsgd;
716 #define _bfd_sparc_elf_tdata(abfd) \
717 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
719 #define _bfd_sparc_elf_local_got_tls_type(abfd) \
720 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
722 #define is_sparc_elf(bfd) \
723 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
724 && elf_tdata (bfd) != NULL \
725 && elf_object_id (bfd) == SPARC_ELF_DATA)
728 _bfd_sparc_elf_mkobject (bfd *abfd)
730 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
735 sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
737 bfd_put_32 (abfd, val, ptr);
741 sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
743 bfd_put_64 (abfd, val, ptr);
747 sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
749 const struct elf_backend_data *bed;
752 bed = get_elf_backend_data (abfd);
753 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
754 bed->s->swap_reloca_out (abfd, rel, loc);
758 sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
759 bfd_vma rel_index ATTRIBUTE_UNUSED,
760 bfd_vma type ATTRIBUTE_UNUSED)
762 return ELF64_R_INFO (rel_index,
764 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
769 sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
770 bfd_vma rel_index, bfd_vma type)
772 return ELF32_R_INFO (rel_index, type);
776 sparc_elf_r_symndx_64 (bfd_vma r_info)
778 bfd_vma r_symndx = ELF32_R_SYM (r_info);
779 return (r_symndx >> 24);
783 sparc_elf_r_symndx_32 (bfd_vma r_info)
785 return ELF32_R_SYM (r_info);
790 #define PLT32_ENTRY_SIZE 12
791 #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
793 /* The first four entries in a 32-bit procedure linkage table are reserved,
794 and the initial contents are unimportant (we zero them out).
795 Subsequent entries look like this. See the SVR4 ABI SPARC
796 supplement to see how this works. */
798 /* sethi %hi(.-.plt0),%g1. We fill in the address later. */
799 #define PLT32_ENTRY_WORD0 0x03000000
800 /* b,a .plt0. We fill in the offset later. */
801 #define PLT32_ENTRY_WORD1 0x30800000
803 #define PLT32_ENTRY_WORD2 SPARC_NOP
806 sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
807 bfd_vma max ATTRIBUTE_UNUSED,
810 bfd_put_32 (output_bfd,
811 PLT32_ENTRY_WORD0 + offset,
812 splt->contents + offset);
813 bfd_put_32 (output_bfd,
815 + (((- (offset + 4)) >> 2) & 0x3fffff)),
816 splt->contents + offset + 4);
817 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
818 splt->contents + offset + 8);
822 return offset / PLT32_ENTRY_SIZE - 4;
825 /* Both the headers and the entries are icache aligned. */
826 #define PLT64_ENTRY_SIZE 32
827 #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
828 #define PLT64_LARGE_THRESHOLD 32768
831 sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
832 bfd_vma max, bfd_vma *r_offset)
834 unsigned char *entry = splt->contents + offset;
835 const unsigned int nop = SPARC_NOP;
838 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
840 unsigned int sethi, ba;
844 plt_index = (offset / PLT64_ENTRY_SIZE);
846 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
848 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
850 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
851 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
852 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
853 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
854 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
855 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
856 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
857 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
863 int block, last_block, ofs, last_ofs, chunks_this_block;
864 const int insn_chunk_size = (6 * 4);
865 const int ptr_chunk_size = (1 * 8);
866 const int entries_per_block = 160;
867 const int block_size = entries_per_block * (insn_chunk_size
870 /* Entries 32768 and higher are grouped into blocks of 160.
871 The blocks are further subdivided into 160 sequences of
872 6 instructions and 160 pointers. If a block does not require
873 the full 160 entries, let's say it requires N, then there
874 will be N sequences of 6 instructions and N pointers. */
876 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
877 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
879 block = offset / block_size;
880 last_block = max / block_size;
881 if (block != last_block)
883 chunks_this_block = 160;
887 last_ofs = max % block_size;
888 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
891 ofs = offset % block_size;
893 plt_index = (PLT64_LARGE_THRESHOLD +
895 (ofs / insn_chunk_size));
898 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
899 + (block * block_size)
900 + (chunks_this_block * insn_chunk_size)
901 + (ofs / insn_chunk_size) * ptr_chunk_size;
903 *r_offset = (bfd_vma) (ptr - splt->contents);
905 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
913 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
914 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
915 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
916 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
917 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
918 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
920 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
923 return plt_index - 4;
926 /* The format of the first PLT entry in a VxWorks executable. */
927 static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
929 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
930 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
931 0xc4008000, /* ld [ %g2 ], %g2 */
932 0x81c08000, /* jmp %g2 */
936 /* The format of subsequent PLT entries. */
937 static const bfd_vma sparc_vxworks_exec_plt_entry[] =
939 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
940 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
941 0xc2004000, /* ld [ %g1 ], %g1 */
942 0x81c04000, /* jmp %g1 */
943 0x01000000, /* nop */
944 0x03000000, /* sethi %hi(f@pltindex), %g1 */
945 0x10800000, /* b _PLT_resolve */
946 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
949 /* The format of the first PLT entry in a VxWorks shared object. */
950 static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
952 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
953 0x81c08000, /* jmp %g2 */
957 /* The format of subsequent PLT entries. */
958 static const bfd_vma sparc_vxworks_shared_plt_entry[] =
960 0x03000000, /* sethi %hi(f@got), %g1 */
961 0x82106000, /* or %g1, %lo(f@got), %g1 */
962 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
963 0x81c04000, /* jmp %g1 */
964 0x01000000, /* nop */
965 0x03000000, /* sethi %hi(f@pltindex), %g1 */
966 0x10800000, /* b _PLT_resolve */
967 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
970 #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
971 htab->put_word(bfd, val, ptr)
973 #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
974 htab->r_info(in_rel, index, type)
976 #define SPARC_ELF_R_SYMNDX(htab, r_info) \
977 htab->r_symndx(r_info)
979 #define SPARC_ELF_WORD_BYTES(htab) \
982 #define SPARC_ELF_RELA_BYTES(htab) \
985 #define SPARC_ELF_DTPOFF_RELOC(htab) \
988 #define SPARC_ELF_DTPMOD_RELOC(htab) \
991 #define SPARC_ELF_TPOFF_RELOC(htab) \
994 #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
995 htab->build_plt_entry (obfd, splt, off, max, r_off)
997 /* Create an entry in an SPARC ELF linker hash table. */
999 static struct bfd_hash_entry *
1000 link_hash_newfunc (struct bfd_hash_entry *entry,
1001 struct bfd_hash_table *table, const char *string)
1003 /* Allocate the structure if it has not already been allocated by a
1007 entry = bfd_hash_allocate (table,
1008 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1013 /* Call the allocation method of the superclass. */
1014 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
1017 struct _bfd_sparc_elf_link_hash_entry *eh;
1019 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
1020 eh->dyn_relocs = NULL;
1021 eh->tls_type = GOT_UNKNOWN;
1022 eh->has_got_reloc = 0;
1023 eh->has_non_got_reloc = 0;
1029 /* The name of the dynamic interpreter. This is put in the .interp
1032 #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
1033 #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
1035 /* Compute a hash of a local hash entry. We use elf_link_hash_entry
1036 for local symbol so that we can handle local STT_GNU_IFUNC symbols
1037 as global symbol. We reuse indx and dynstr_index for local symbol
1038 hash since they aren't used by global symbols in this backend. */
1041 elf_sparc_local_htab_hash (const void *ptr)
1043 struct elf_link_hash_entry *h
1044 = (struct elf_link_hash_entry *) ptr;
1045 return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
1048 /* Compare local hash entries. */
1051 elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2)
1053 struct elf_link_hash_entry *h1
1054 = (struct elf_link_hash_entry *) ptr1;
1055 struct elf_link_hash_entry *h2
1056 = (struct elf_link_hash_entry *) ptr2;
1058 return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
1061 /* Find and/or create a hash entry for local symbol. */
1063 static struct elf_link_hash_entry *
1064 elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab,
1065 bfd *abfd, const Elf_Internal_Rela *rel,
1068 struct _bfd_sparc_elf_link_hash_entry e, *ret;
1069 asection *sec = abfd->sections;
1070 unsigned long r_symndx;
1074 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1075 h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx);
1077 e.elf.indx = sec->id;
1078 e.elf.dynstr_index = r_symndx;
1079 slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
1080 create ? INSERT : NO_INSERT);
1087 ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot;
1091 ret = (struct _bfd_sparc_elf_link_hash_entry *)
1092 objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
1093 sizeof (struct _bfd_sparc_elf_link_hash_entry));
1096 memset (ret, 0, sizeof (*ret));
1097 ret->elf.indx = sec->id;
1098 ret->elf.dynstr_index = r_symndx;
1099 ret->elf.dynindx = -1;
1100 ret->elf.plt.offset = (bfd_vma) -1;
1101 ret->elf.got.offset = (bfd_vma) -1;
1107 /* Destroy a SPARC ELF linker hash table. */
1110 _bfd_sparc_elf_link_hash_table_free (bfd *obfd)
1112 struct _bfd_sparc_elf_link_hash_table *htab
1113 = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash;
1115 if (htab->loc_hash_table)
1116 htab_delete (htab->loc_hash_table);
1117 if (htab->loc_hash_memory)
1118 objalloc_free ((struct objalloc *) htab->loc_hash_memory);
1119 _bfd_elf_link_hash_table_free (obfd);
1122 /* Create a SPARC ELF linker hash table. */
1124 struct bfd_link_hash_table *
1125 _bfd_sparc_elf_link_hash_table_create (bfd *abfd)
1127 struct _bfd_sparc_elf_link_hash_table *ret;
1128 bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
1130 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
1134 if (ABI_64_P (abfd))
1136 ret->put_word = sparc_put_word_64;
1137 ret->r_info = sparc_elf_r_info_64;
1138 ret->r_symndx = sparc_elf_r_symndx_64;
1139 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
1140 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
1141 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
1142 ret->word_align_power = 3;
1143 ret->align_power_max = 4;
1144 ret->bytes_per_word = 8;
1145 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
1146 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
1147 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
1149 ret->build_plt_entry = sparc64_plt_entry_build;
1150 ret->plt_header_size = PLT64_HEADER_SIZE;
1151 ret->plt_entry_size = PLT64_ENTRY_SIZE;
1155 ret->put_word = sparc_put_word_32;
1156 ret->r_info = sparc_elf_r_info_32;
1157 ret->r_symndx = sparc_elf_r_symndx_32;
1158 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
1159 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
1160 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
1161 ret->word_align_power = 2;
1162 ret->align_power_max = 3;
1163 ret->bytes_per_word = 4;
1164 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
1165 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
1166 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
1168 ret->build_plt_entry = sparc32_plt_entry_build;
1169 ret->plt_header_size = PLT32_HEADER_SIZE;
1170 ret->plt_entry_size = PLT32_ENTRY_SIZE;
1173 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
1174 sizeof (struct _bfd_sparc_elf_link_hash_entry),
1181 ret->loc_hash_table = htab_try_create (1024,
1182 elf_sparc_local_htab_hash,
1183 elf_sparc_local_htab_eq,
1185 ret->loc_hash_memory = objalloc_create ();
1186 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1188 _bfd_sparc_elf_link_hash_table_free (abfd);
1191 ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free;
1193 return &ret->elf.root;
1196 /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
1197 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
1201 _bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
1202 struct bfd_link_info *info)
1204 struct _bfd_sparc_elf_link_hash_table *htab;
1206 htab = _bfd_sparc_elf_hash_table (info);
1207 BFD_ASSERT (htab != NULL);
1209 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
1212 if (htab->is_vxworks)
1214 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
1216 if (bfd_link_pic (info))
1218 htab->plt_header_size
1219 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
1220 htab->plt_entry_size
1221 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
1225 htab->plt_header_size
1226 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
1227 htab->plt_entry_size
1228 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
1232 if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss
1233 || (!bfd_link_pic (info) && !htab->elf.srelbss))
1240 create_ifunc_sections (bfd *abfd, struct bfd_link_info *info)
1242 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1243 struct elf_link_hash_table *htab = elf_hash_table (info);
1244 flagword flags, pltflags;
1247 if (htab->irelifunc != NULL || htab->iplt != NULL)
1250 flags = bed->dynamic_sec_flags;
1251 pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD;
1253 s = bfd_make_section_with_flags (abfd, ".iplt", pltflags);
1255 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1259 s = bfd_make_section_with_flags (abfd, ".rela.iplt",
1260 flags | SEC_READONLY);
1262 || ! bfd_set_section_alignment (abfd, s,
1263 bed->s->log_file_align))
1270 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1273 _bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
1274 struct elf_link_hash_entry *dir,
1275 struct elf_link_hash_entry *ind)
1277 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
1279 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
1280 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
1282 if (eind->dyn_relocs != NULL)
1284 if (edir->dyn_relocs != NULL)
1286 struct elf_dyn_relocs **pp;
1287 struct elf_dyn_relocs *p;
1289 /* Add reloc counts against the indirect sym to the direct sym
1290 list. Merge any entries against the same section. */
1291 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
1293 struct elf_dyn_relocs *q;
1295 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1296 if (q->sec == p->sec)
1298 q->pc_count += p->pc_count;
1299 q->count += p->count;
1306 *pp = edir->dyn_relocs;
1309 edir->dyn_relocs = eind->dyn_relocs;
1310 eind->dyn_relocs = NULL;
1313 if (ind->root.type == bfd_link_hash_indirect
1314 && dir->got.refcount <= 0)
1316 edir->tls_type = eind->tls_type;
1317 eind->tls_type = GOT_UNKNOWN;
1320 /* Copy has_got_reloc and has_non_got_reloc. */
1321 edir->has_got_reloc |= eind->has_got_reloc;
1322 edir->has_non_got_reloc |= eind->has_non_got_reloc;
1324 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1328 sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1329 int r_type, int is_local)
1331 if (! ABI_64_P (abfd)
1332 && r_type == R_SPARC_TLS_GD_HI22
1333 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1334 r_type = R_SPARC_REV32;
1336 if (!bfd_link_executable (info))
1341 case R_SPARC_TLS_GD_HI22:
1343 return R_SPARC_TLS_LE_HIX22;
1344 return R_SPARC_TLS_IE_HI22;
1345 case R_SPARC_TLS_GD_LO10:
1347 return R_SPARC_TLS_LE_LOX10;
1348 return R_SPARC_TLS_IE_LO10;
1349 case R_SPARC_TLS_IE_HI22:
1351 return R_SPARC_TLS_LE_HIX22;
1353 case R_SPARC_TLS_IE_LO10:
1355 return R_SPARC_TLS_LE_LOX10;
1357 case R_SPARC_TLS_LDM_HI22:
1358 return R_SPARC_TLS_LE_HIX22;
1359 case R_SPARC_TLS_LDM_LO10:
1360 return R_SPARC_TLS_LE_LOX10;
1366 /* Look through the relocs for a section during the first phase, and
1367 allocate space in the global offset table or procedure linkage
1371 _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1372 asection *sec, const Elf_Internal_Rela *relocs)
1374 struct _bfd_sparc_elf_link_hash_table *htab;
1375 Elf_Internal_Shdr *symtab_hdr;
1376 struct elf_link_hash_entry **sym_hashes;
1377 const Elf_Internal_Rela *rel;
1378 const Elf_Internal_Rela *rel_end;
1381 bfd_boolean checked_tlsgd = FALSE;
1383 if (bfd_link_relocatable (info))
1386 htab = _bfd_sparc_elf_hash_table (info);
1387 BFD_ASSERT (htab != NULL);
1388 symtab_hdr = &elf_symtab_hdr (abfd);
1389 sym_hashes = elf_sym_hashes (abfd);
1393 if (ABI_64_P (abfd))
1394 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec));
1396 num_relocs = sec->reloc_count;
1398 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1400 if (htab->elf.dynobj == NULL)
1401 htab->elf.dynobj = abfd;
1402 if (!create_ifunc_sections (htab->elf.dynobj, info))
1405 rel_end = relocs + num_relocs;
1406 for (rel = relocs; rel < rel_end; rel++)
1408 unsigned int r_type;
1409 unsigned int r_symndx;
1410 struct elf_link_hash_entry *h;
1411 struct _bfd_sparc_elf_link_hash_entry *eh;
1412 Elf_Internal_Sym *isym;
1414 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1415 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1417 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1419 /* xgettext:c-format */
1420 _bfd_error_handler (_("%B: bad symbol index: %d"), abfd, r_symndx);
1425 if (r_symndx < symtab_hdr->sh_info)
1427 /* A local symbol. */
1428 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1433 /* Check relocation against local STT_GNU_IFUNC symbol. */
1434 if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC)
1436 h = elf_sparc_get_local_sym_hash (htab, abfd, rel,
1441 /* Fake a STT_GNU_IFUNC symbol. */
1442 h->type = STT_GNU_IFUNC;
1445 h->forced_local = 1;
1446 h->root.type = bfd_link_hash_defined;
1453 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1454 while (h->root.type == bfd_link_hash_indirect
1455 || h->root.type == bfd_link_hash_warning)
1456 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1459 if (h && h->type == STT_GNU_IFUNC)
1464 h->plt.refcount += 1;
1468 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1469 with R_SPARC_TLS_GD_HI22. */
1470 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1473 case R_SPARC_TLS_GD_HI22:
1475 const Elf_Internal_Rela *relt;
1477 for (relt = rel + 1; relt < rel_end; relt++)
1478 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1479 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1480 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1482 checked_tlsgd = TRUE;
1483 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1486 case R_SPARC_TLS_GD_LO10:
1487 case R_SPARC_TLS_GD_ADD:
1488 case R_SPARC_TLS_GD_CALL:
1489 checked_tlsgd = TRUE;
1490 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1494 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
1495 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1499 case R_SPARC_TLS_LDM_HI22:
1500 case R_SPARC_TLS_LDM_LO10:
1501 htab->tls_ldm_got.refcount += 1;
1503 eh->has_got_reloc = 1;
1506 case R_SPARC_TLS_LE_HIX22:
1507 case R_SPARC_TLS_LE_LOX10:
1508 if (!bfd_link_executable (info))
1512 case R_SPARC_TLS_IE_HI22:
1513 case R_SPARC_TLS_IE_LO10:
1514 if (!bfd_link_executable (info))
1515 info->flags |= DF_STATIC_TLS;
1521 case R_SPARC_GOTDATA_HIX22:
1522 case R_SPARC_GOTDATA_LOX10:
1523 case R_SPARC_GOTDATA_OP_HIX22:
1524 case R_SPARC_GOTDATA_OP_LOX10:
1525 case R_SPARC_TLS_GD_HI22:
1526 case R_SPARC_TLS_GD_LO10:
1527 /* This symbol requires a global offset table entry. */
1529 int tls_type, old_tls_type;
1537 case R_SPARC_GOTDATA_OP_HIX22:
1538 case R_SPARC_GOTDATA_OP_LOX10:
1539 tls_type = GOT_NORMAL;
1541 case R_SPARC_TLS_GD_HI22:
1542 case R_SPARC_TLS_GD_LO10:
1543 tls_type = GOT_TLS_GD;
1545 case R_SPARC_TLS_IE_HI22:
1546 case R_SPARC_TLS_IE_LO10:
1547 tls_type = GOT_TLS_IE;
1553 h->got.refcount += 1;
1554 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1558 bfd_signed_vma *local_got_refcounts;
1560 /* This is a global offset table entry for a local symbol. */
1561 local_got_refcounts = elf_local_got_refcounts (abfd);
1562 if (local_got_refcounts == NULL)
1566 size = symtab_hdr->sh_info;
1567 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1568 local_got_refcounts = ((bfd_signed_vma *)
1569 bfd_zalloc (abfd, size));
1570 if (local_got_refcounts == NULL)
1572 elf_local_got_refcounts (abfd) = local_got_refcounts;
1573 _bfd_sparc_elf_local_got_tls_type (abfd)
1574 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1578 case R_SPARC_GOTDATA_OP_HIX22:
1579 case R_SPARC_GOTDATA_OP_LOX10:
1583 local_got_refcounts[r_symndx] += 1;
1586 old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1589 /* If a TLS symbol is accessed using IE at least once,
1590 there is no point to use dynamic model for it. */
1591 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1592 && (old_tls_type != GOT_TLS_GD
1593 || tls_type != GOT_TLS_IE))
1595 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1596 tls_type = old_tls_type;
1600 /* xgettext:c-format */
1601 (_("%B: `%s' accessed both as normal and thread local symbol"),
1602 abfd, h ? h->root.root.string : "<local>");
1607 if (old_tls_type != tls_type)
1610 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1612 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1616 if (htab->elf.sgot == NULL)
1618 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
1623 eh->has_got_reloc = 1;
1626 case R_SPARC_TLS_GD_CALL:
1627 case R_SPARC_TLS_LDM_CALL:
1628 if (!bfd_link_executable (info))
1630 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1632 struct bfd_link_hash_entry *bh = NULL;
1633 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1634 "__tls_get_addr", 0,
1635 bfd_und_section_ptr, 0,
1639 h = (struct elf_link_hash_entry *) bh;
1646 case R_SPARC_WPLT30:
1647 case R_SPARC_HIPLT22:
1648 case R_SPARC_LOPLT10:
1649 case R_SPARC_PCPLT32:
1650 case R_SPARC_PCPLT22:
1651 case R_SPARC_PCPLT10:
1653 /* This symbol requires a procedure linkage table entry. We
1654 actually build the entry in adjust_dynamic_symbol,
1655 because this might be a case of linking PIC code without
1656 linking in any dynamic objects, in which case we don't
1657 need to generate a procedure linkage table after all. */
1661 if (! ABI_64_P (abfd))
1663 /* The Solaris native assembler will generate a WPLT30
1664 reloc for a local symbol if you assemble a call from
1665 one section to another when using -K pic. We treat
1667 if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
1671 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1672 else if (r_type == R_SPARC_WPLT30)
1675 /* It does not make sense to have a procedure linkage
1676 table entry for a local symbol. */
1677 bfd_set_error (bfd_error_bad_value);
1686 this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
1687 if (this_r_type == R_SPARC_PLT32
1688 || this_r_type == R_SPARC_PLT64)
1691 h->plt.refcount += 1;
1693 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1694 eh->has_got_reloc = 1;
1699 case R_SPARC_PC_HH22:
1700 case R_SPARC_PC_HM10:
1701 case R_SPARC_PC_LM22:
1706 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1711 case R_SPARC_DISP16:
1712 case R_SPARC_DISP32:
1713 case R_SPARC_DISP64:
1714 case R_SPARC_WDISP30:
1715 case R_SPARC_WDISP22:
1716 case R_SPARC_WDISP19:
1717 case R_SPARC_WDISP16:
1718 case R_SPARC_WDISP10:
1748 if (eh != NULL && (sec->flags & SEC_CODE) != 0)
1749 eh->has_non_got_reloc = 1;
1752 if (h != NULL && !bfd_link_pic (info))
1754 /* We may need a .plt entry if the function this reloc
1755 refers to is in a shared lib. */
1756 h->plt.refcount += 1;
1759 /* If we are creating a shared library, and this is a reloc
1760 against a global symbol, or a non PC relative reloc
1761 against a local symbol, then we need to copy the reloc
1762 into the shared library. However, if we are linking with
1763 -Bsymbolic, we do not need to copy a reloc against a
1764 global symbol which is defined in an object we are
1765 including in the link (i.e., DEF_REGULAR is set). At
1766 this point we have not seen all the input files, so it is
1767 possible that DEF_REGULAR is not set now but will be set
1768 later (it is never cleared). In case of a weak definition,
1769 DEF_REGULAR may be cleared later by a strong definition in
1770 a shared library. We account for that possibility below by
1771 storing information in the relocs_copied field of the hash
1772 table entry. A similar situation occurs when creating
1773 shared libraries and symbol visibility changes render the
1776 If on the other hand, we are creating an executable, we
1777 may need to keep relocations for symbols satisfied by a
1778 dynamic library if we manage to avoid copy relocs for the
1780 if ((bfd_link_pic (info)
1781 && (sec->flags & SEC_ALLOC) != 0
1782 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1784 && (! SYMBOLIC_BIND (info, h)
1785 || h->root.type == bfd_link_hash_defweak
1786 || !h->def_regular))))
1787 || (!bfd_link_pic (info)
1788 && (sec->flags & SEC_ALLOC) != 0
1790 && (h->root.type == bfd_link_hash_defweak
1791 || !h->def_regular))
1792 || (!bfd_link_pic (info)
1794 && h->type == STT_GNU_IFUNC))
1796 struct elf_dyn_relocs *p;
1797 struct elf_dyn_relocs **head;
1799 /* When creating a shared object, we must copy these
1800 relocs into the output file. We create a reloc
1801 section in dynobj and make room for the reloc. */
1804 sreloc = _bfd_elf_make_dynamic_reloc_section
1805 (sec, htab->elf.dynobj, htab->word_align_power,
1806 abfd, /*rela?*/ TRUE);
1812 /* If this is a global symbol, we count the number of
1813 relocations we need for this symbol. */
1815 head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
1818 /* Track dynamic relocs needed for local syms too.
1819 We really need local syms available to do this
1824 BFD_ASSERT (isym != NULL);
1825 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1829 vpp = &elf_section_data (s)->local_dynrel;
1830 head = (struct elf_dyn_relocs **) vpp;
1834 if (p == NULL || p->sec != sec)
1836 bfd_size_type amt = sizeof *p;
1837 p = ((struct elf_dyn_relocs *)
1838 bfd_alloc (htab->elf.dynobj, amt));
1849 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1855 case R_SPARC_GNU_VTINHERIT:
1856 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1860 case R_SPARC_GNU_VTENTRY:
1861 BFD_ASSERT (h != NULL);
1863 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1867 case R_SPARC_REGISTER:
1868 /* Nothing to do. */
1880 _bfd_sparc_elf_gc_mark_hook (asection *sec,
1881 struct bfd_link_info *info,
1882 Elf_Internal_Rela *rel,
1883 struct elf_link_hash_entry *h,
1884 Elf_Internal_Sym *sym)
1887 switch (SPARC_ELF_R_TYPE (rel->r_info))
1889 case R_SPARC_GNU_VTINHERIT:
1890 case R_SPARC_GNU_VTENTRY:
1894 /* FIXME: The test here, in check_relocs and in relocate_section
1895 dealing with TLS optimization, ought to be !bfd_link_executable (info). */
1896 if (bfd_link_pic (info))
1898 switch (SPARC_ELF_R_TYPE (rel->r_info))
1900 case R_SPARC_TLS_GD_CALL:
1901 case R_SPARC_TLS_LDM_CALL:
1902 /* This reloc implicitly references __tls_get_addr. We know
1903 another reloc will reference the same symbol as the one
1904 on this reloc, so the real symbol and section will be
1905 gc marked when processing the other reloc. That lets
1906 us handle __tls_get_addr here. */
1907 h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr",
1908 FALSE, FALSE, TRUE);
1909 BFD_ASSERT (h != NULL);
1911 if (h->is_weakalias)
1912 weakdef (h)->mark = 1;
1917 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1920 static Elf_Internal_Rela *
1921 sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel,
1922 Elf_Internal_Rela *relend,
1925 while (rel < relend)
1927 if (rel->r_offset == offset)
1934 /* Remove undefined weak symbol from the dynamic symbol table if it
1935 is resolved to 0. */
1938 _bfd_sparc_elf_fixup_symbol (struct bfd_link_info *info,
1939 struct elf_link_hash_entry *h)
1941 if (h->dynindx != -1
1942 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
1943 _bfd_sparc_elf_hash_entry (h)))
1946 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1952 /* Find dynamic relocs for H that apply to read-only sections. */
1955 readonly_dynrelocs (struct elf_link_hash_entry *h)
1957 struct elf_dyn_relocs *p;
1959 for (p = _bfd_sparc_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next)
1961 asection *s = p->sec->output_section;
1963 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1969 /* Adjust a symbol defined by a dynamic object and referenced by a
1970 regular object. The current definition is in some section of the
1971 dynamic object, but we're not including those sections. We have to
1972 change the definition to something the rest of the link can
1976 _bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1977 struct elf_link_hash_entry *h)
1979 struct _bfd_sparc_elf_link_hash_table *htab;
1982 htab = _bfd_sparc_elf_hash_table (info);
1983 BFD_ASSERT (htab != NULL);
1985 /* Make sure we know what is going on here. */
1986 BFD_ASSERT (htab->elf.dynobj != NULL
1988 || h->type == STT_GNU_IFUNC
1992 && !h->def_regular)));
1994 /* If this is a function, put it in the procedure linkage table. We
1995 will fill in the contents of the procedure linkage table later
1996 (although we could actually do it here). The STT_NOTYPE
1997 condition is a hack specifically for the Oracle libraries
1998 delivered for Solaris; for some inexplicable reason, they define
1999 some of their functions as STT_NOTYPE when they really should be
2001 if (h->type == STT_FUNC
2002 || h->type == STT_GNU_IFUNC
2004 || (h->type == STT_NOTYPE
2005 && (h->root.type == bfd_link_hash_defined
2006 || h->root.type == bfd_link_hash_defweak)
2007 && (h->root.u.def.section->flags & SEC_CODE) != 0))
2009 if (h->plt.refcount <= 0
2010 || (h->type != STT_GNU_IFUNC
2011 && (SYMBOL_CALLS_LOCAL (info, h)
2012 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2013 && h->root.type == bfd_link_hash_undefweak))))
2015 /* This case can occur if we saw a WPLT30 reloc in an input
2016 file, but the symbol was never referred to by a dynamic
2017 object, or if all references were garbage collected. In
2018 such a case, we don't actually need to build a procedure
2019 linkage table, and we can just do a WDISP30 reloc instead. */
2020 h->plt.offset = (bfd_vma) -1;
2027 h->plt.offset = (bfd_vma) -1;
2029 /* If this is a weak symbol, and there is a real definition, the
2030 processor independent code will have arranged for us to see the
2031 real definition first, and we can just use the same value. */
2032 if (h->is_weakalias)
2034 struct elf_link_hash_entry *def = weakdef (h);
2035 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
2036 h->root.u.def.section = def->root.u.def.section;
2037 h->root.u.def.value = def->root.u.def.value;
2041 /* This is a reference to a symbol defined by a dynamic object which
2042 is not a function. */
2044 /* If we are creating a shared library, we must presume that the
2045 only references to the symbol are via the global offset table.
2046 For such cases we need not do anything here; the relocations will
2047 be handled correctly by relocate_section. */
2048 if (bfd_link_pic (info))
2051 /* If there are no references to this symbol that do not use the
2052 GOT, we don't need to generate a copy reloc. */
2053 if (!h->non_got_ref)
2056 /* If -z nocopyreloc was given, we won't generate them either. */
2057 if (info->nocopyreloc)
2063 /* If we don't find any dynamic relocs in read-only sections, then
2064 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2065 if (!readonly_dynrelocs (h))
2071 /* We must allocate the symbol in our .dynbss section, which will
2072 become part of the .bss section of the executable. There will be
2073 an entry for this symbol in the .dynsym section. The dynamic
2074 object will contain position independent code, so all references
2075 from the dynamic object to this symbol will go through the global
2076 offset table. The dynamic linker will use the .dynsym entry to
2077 determine the address it must put in the global offset table, so
2078 both the dynamic object and the regular object will refer to the
2079 same memory location for the variable. */
2081 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
2082 to copy the initial value out of the dynamic object and into the
2083 runtime process image. We need to remember the offset into the
2084 .rel.bss section we are going to use. */
2085 if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
2087 s = htab->elf.sdynrelro;
2088 srel = htab->elf.sreldynrelro;
2092 s = htab->elf.sdynbss;
2093 srel = htab->elf.srelbss;
2095 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
2097 srel->size += SPARC_ELF_RELA_BYTES (htab);
2101 return _bfd_elf_adjust_dynamic_copy (info, h, s);
2104 /* Allocate space in .plt, .got and associated reloc sections for
2108 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2110 struct bfd_link_info *info;
2111 struct _bfd_sparc_elf_link_hash_table *htab;
2112 struct _bfd_sparc_elf_link_hash_entry *eh;
2113 struct elf_dyn_relocs *p;
2114 bfd_boolean resolved_to_zero;
2116 if (h->root.type == bfd_link_hash_indirect)
2119 info = (struct bfd_link_info *) inf;
2120 htab = _bfd_sparc_elf_hash_table (info);
2121 BFD_ASSERT (htab != NULL);
2123 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2124 resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
2126 if ((htab->elf.dynamic_sections_created
2127 && h->plt.refcount > 0)
2128 || (h->type == STT_GNU_IFUNC
2132 /* Make sure this symbol is output as a dynamic symbol.
2133 Undefined weak syms won't yet be marked as dynamic. */
2134 if (h->dynindx == -1
2136 && !resolved_to_zero
2137 && h->root.type == bfd_link_hash_undefweak)
2139 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2143 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)
2144 || (h->type == STT_GNU_IFUNC
2147 asection *s = htab->elf.splt;
2152 /* Allocate room for the header. */
2155 s->size = htab->plt_header_size;
2157 /* Allocate space for the .rela.plt.unloaded relocations. */
2158 if (htab->is_vxworks && !bfd_link_pic (info))
2159 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
2162 /* The procedure linkage table size is bounded by the magnitude
2163 of the offset we can describe in the entry. */
2164 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
2165 (((bfd_vma)1 << 31) << 1) : 0x400000))
2167 bfd_set_error (bfd_error_bad_value);
2171 if (SPARC_ELF_WORD_BYTES(htab) == 8
2172 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
2174 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
2177 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
2179 h->plt.offset = (s->size - (off * 8));
2182 h->plt.offset = s->size;
2184 /* If this symbol is not defined in a regular file, and we are
2185 not generating a shared library, then set the symbol to this
2186 location in the .plt. This is required to make function
2187 pointers compare as equal between the normal executable and
2188 the shared library. */
2189 if (! bfd_link_pic (info)
2192 h->root.u.def.section = s;
2193 h->root.u.def.value = h->plt.offset;
2196 /* Make room for this entry. */
2197 s->size += htab->plt_entry_size;
2199 /* There should be no PLT relocations against resolved undefined
2200 weak symbols in the executable. */
2201 if (!resolved_to_zero)
2203 /* We also need to make an entry in the .rela.plt section. */
2204 if (s == htab->elf.splt)
2205 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
2207 htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab);
2210 if (htab->is_vxworks)
2212 /* Allocate space for the .got.plt entry. */
2213 htab->elf.sgotplt->size += 4;
2215 /* ...and for the .rela.plt.unloaded relocations. */
2216 if (!bfd_link_pic (info))
2217 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
2222 h->plt.offset = (bfd_vma) -1;
2228 h->plt.offset = (bfd_vma) -1;
2232 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
2233 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
2234 if (h->got.refcount > 0
2235 && bfd_link_executable (info)
2237 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
2238 h->got.offset = (bfd_vma) -1;
2239 else if (h->got.refcount > 0)
2243 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2245 /* Make sure this symbol is output as a dynamic symbol.
2246 Undefined weak syms won't yet be marked as dynamic. */
2247 if (h->dynindx == -1
2249 && !resolved_to_zero
2250 && h->root.type == bfd_link_hash_undefweak)
2252 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2257 h->got.offset = s->size;
2258 s->size += SPARC_ELF_WORD_BYTES (htab);
2259 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
2260 if (tls_type == GOT_TLS_GD)
2261 s->size += SPARC_ELF_WORD_BYTES (htab);
2262 dyn = htab->elf.dynamic_sections_created;
2263 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2264 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
2265 global. No dynamic relocations are needed against resolved
2266 undefined weak symbols in an executable. */
2267 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
2268 || tls_type == GOT_TLS_IE
2269 || h->type == STT_GNU_IFUNC)
2270 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2271 else if (tls_type == GOT_TLS_GD)
2272 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
2273 else if (((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2274 && !resolved_to_zero)
2275 || h->root.type != bfd_link_hash_undefweak)
2276 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2277 bfd_link_pic (info),
2279 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2282 h->got.offset = (bfd_vma) -1;
2284 if (eh->dyn_relocs == NULL)
2287 /* In the shared -Bsymbolic case, discard space allocated for
2288 dynamic pc-relative relocs against symbols which turn out to be
2289 defined in regular objects. For the normal shared case, discard
2290 space for pc-relative relocs that have become local due to symbol
2291 visibility changes. */
2293 if (bfd_link_pic (info))
2295 if (SYMBOL_CALLS_LOCAL (info, h))
2297 struct elf_dyn_relocs **pp;
2299 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2301 p->count -= p->pc_count;
2310 if (htab->is_vxworks)
2312 struct elf_dyn_relocs **pp;
2314 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
2316 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2323 /* Also discard relocs on undefined weak syms with non-default
2324 visibility or in PIE. */
2325 if (eh->dyn_relocs != NULL
2326 && h->root.type == bfd_link_hash_undefweak)
2328 /* An undefined weak symbol is never
2329 bound locally in a shared library. */
2331 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
2332 || resolved_to_zero)
2336 /* Keep dynamic non-GOT/non-PLT relocation so that we
2337 can branch to 0 without PLT. */
2338 struct elf_dyn_relocs **pp;
2340 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2341 if (p->pc_count == 0)
2345 /* Remove other relocations. */
2346 p->count = p->pc_count;
2350 if (eh->dyn_relocs != NULL)
2352 /* Make sure undefined weak symbols are output
2353 as dynamic symbols in PIEs for dynamic non-GOT
2354 non-PLT reloations. */
2355 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2360 eh->dyn_relocs = NULL;
2363 /* Make sure undefined weak symbols are output as a dynamic
2365 else if (h->dynindx == -1
2366 && !h->forced_local)
2368 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2375 /* For the non-shared case, discard space for relocs against
2376 symbols which turn out to need copy relocs or are not
2379 if ((!h->non_got_ref
2380 || (h->root.type == bfd_link_hash_undefweak
2381 && !resolved_to_zero))
2384 || (htab->elf.dynamic_sections_created
2385 && (h->root.type == bfd_link_hash_undefweak
2386 || h->root.type == bfd_link_hash_undefined))))
2388 /* Make sure this symbol is output as a dynamic symbol.
2389 Undefined weak syms won't yet be marked as dynamic. */
2390 if (h->dynindx == -1
2392 && !resolved_to_zero
2393 && h->root.type == bfd_link_hash_undefweak)
2395 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2399 /* If that succeeded, we know we'll be keeping all the
2401 if (h->dynindx != -1)
2405 eh->dyn_relocs = NULL;
2410 /* Finally, allocate space. */
2411 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2413 asection *sreloc = elf_section_data (p->sec)->sreloc;
2414 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2420 /* Allocate space in .plt, .got and associated reloc sections for
2421 local dynamic relocs. */
2424 allocate_local_dynrelocs (void **slot, void *inf)
2426 struct elf_link_hash_entry *h
2427 = (struct elf_link_hash_entry *) *slot;
2429 if (h->type != STT_GNU_IFUNC
2433 || h->root.type != bfd_link_hash_defined)
2436 return allocate_dynrelocs (h, inf);
2439 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2440 read-only sections. */
2443 maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
2447 if (h->root.type == bfd_link_hash_indirect)
2450 sec = readonly_dynrelocs (h);
2453 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
2455 info->flags |= DF_TEXTREL;
2456 info->callbacks->minfo
2457 (_("%B: dynamic relocation against `%T' in read-only section `%A'\n"),
2458 sec->owner, h->root.root.string, sec);
2460 /* Not an error, just cut short the traversal. */
2466 /* Return true if the dynamic symbol for a given section should be
2467 omitted when creating a shared library. */
2470 _bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2471 struct bfd_link_info *info,
2474 /* We keep the .got section symbol so that explicit relocations
2475 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2476 can be turned into relocations against the .got symbol. */
2477 if (strcmp (p->name, ".got") == 0)
2480 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2483 /* Set the sizes of the dynamic sections. */
2486 _bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2487 struct bfd_link_info *info)
2489 struct _bfd_sparc_elf_link_hash_table *htab;
2494 htab = _bfd_sparc_elf_hash_table (info);
2495 BFD_ASSERT (htab != NULL);
2496 dynobj = htab->elf.dynobj;
2497 BFD_ASSERT (dynobj != NULL);
2499 if (elf_hash_table (info)->dynamic_sections_created)
2501 /* Set the contents of the .interp section to the interpreter. */
2502 if (bfd_link_executable (info) && !info->nointerp)
2504 s = bfd_get_linker_section (dynobj, ".interp");
2505 BFD_ASSERT (s != NULL);
2506 s->size = htab->dynamic_interpreter_size;
2507 s->contents = (unsigned char *) htab->dynamic_interpreter;
2512 /* Set up .got offsets for local syms, and space for local dynamic
2514 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2516 bfd_signed_vma *local_got;
2517 bfd_signed_vma *end_local_got;
2518 char *local_tls_type;
2519 bfd_size_type locsymcount;
2520 Elf_Internal_Shdr *symtab_hdr;
2523 if (! is_sparc_elf (ibfd))
2526 for (s = ibfd->sections; s != NULL; s = s->next)
2528 struct elf_dyn_relocs *p;
2530 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2532 if (!bfd_is_abs_section (p->sec)
2533 && bfd_is_abs_section (p->sec->output_section))
2535 /* Input section has been discarded, either because
2536 it is a copy of a linkonce section or due to
2537 linker script /DISCARD/, so we'll be discarding
2540 else if (htab->is_vxworks
2541 && strcmp (p->sec->output_section->name,
2544 /* Relocations in vxworks .tls_vars sections are
2545 handled specially by the loader. */
2547 else if (p->count != 0)
2549 srel = elf_section_data (p->sec)->sreloc;
2550 if (!htab->elf.dynamic_sections_created)
2551 srel = htab->elf.irelplt;
2552 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2553 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2555 info->flags |= DF_TEXTREL;
2556 info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"),
2557 p->sec->owner, p->sec);
2563 local_got = elf_local_got_refcounts (ibfd);
2567 symtab_hdr = &elf_symtab_hdr (ibfd);
2568 locsymcount = symtab_hdr->sh_info;
2569 end_local_got = local_got + locsymcount;
2570 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
2572 srel = htab->elf.srelgot;
2573 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2577 *local_got = s->size;
2578 s->size += SPARC_ELF_WORD_BYTES (htab);
2579 if (*local_tls_type == GOT_TLS_GD)
2580 s->size += SPARC_ELF_WORD_BYTES (htab);
2581 if (bfd_link_pic (info)
2582 || *local_tls_type == GOT_TLS_GD
2583 || *local_tls_type == GOT_TLS_IE)
2584 srel->size += SPARC_ELF_RELA_BYTES (htab);
2587 *local_got = (bfd_vma) -1;
2591 if (htab->tls_ldm_got.refcount > 0)
2593 /* Allocate 2 got entries and 1 dynamic reloc for
2594 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
2595 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2596 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2597 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2600 htab->tls_ldm_got.offset = -1;
2602 /* Allocate global sym .plt and .got entries, and space for global
2603 sym dynamic relocs. */
2604 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info);
2606 /* Allocate .plt and .got entries, and space for local symbols. */
2607 htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info);
2609 if (! ABI_64_P (output_bfd)
2610 && !htab->is_vxworks
2611 && elf_hash_table (info)->dynamic_sections_created)
2613 /* Make space for the trailing nop in .plt. */
2614 if (htab->elf.splt->size > 0)
2615 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
2617 /* If the .got section is more than 0x1000 bytes, we add
2618 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2619 bit relocations have a greater chance of working.
2621 FIXME: Make this optimization work for 64-bit too. */
2622 if (htab->elf.sgot->size >= 0x1000
2623 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2624 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2627 /* The check_relocs and adjust_dynamic_symbol entry points have
2628 determined the sizes of the various dynamic sections. Allocate
2630 for (s = dynobj->sections; s != NULL; s = s->next)
2632 if ((s->flags & SEC_LINKER_CREATED) == 0)
2635 if (s == htab->elf.splt
2636 || s == htab->elf.sgot
2637 || s == htab->elf.sdynbss
2638 || s == htab->elf.sdynrelro
2639 || s == htab->elf.iplt
2640 || s == htab->elf.sgotplt)
2642 /* Strip this section if we don't need it; see the
2645 else if (CONST_STRNEQ (s->name, ".rela"))
2649 /* We use the reloc_count field as a counter if we need
2650 to copy relocs into the output file. */
2656 /* It's not one of our sections. */
2662 /* If we don't need this section, strip it from the
2663 output file. This is mostly to handle .rela.bss and
2664 .rela.plt. We must create both sections in
2665 create_dynamic_sections, because they must be created
2666 before the linker maps input sections to output
2667 sections. The linker does that before
2668 adjust_dynamic_symbol is called, and it is that
2669 function which decides whether anything needs to go
2670 into these sections. */
2671 s->flags |= SEC_EXCLUDE;
2675 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2678 /* Allocate memory for the section contents. Zero the memory
2679 for the benefit of .rela.plt, which has 4 unused entries
2680 at the beginning, and we don't want garbage. */
2681 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2682 if (s->contents == NULL)
2686 if (elf_hash_table (info)->dynamic_sections_created)
2688 /* Add some entries to the .dynamic section. We fill in the
2689 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2690 must add the entries now so that we get the correct size for
2691 the .dynamic section. The DT_DEBUG entry is filled in by the
2692 dynamic linker and used by the debugger. */
2693 #define add_dynamic_entry(TAG, VAL) \
2694 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2696 if (bfd_link_executable (info))
2698 if (!add_dynamic_entry (DT_DEBUG, 0))
2702 if (htab->elf.srelplt->size != 0)
2704 if (!add_dynamic_entry (DT_PLTGOT, 0)
2705 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2706 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2707 || !add_dynamic_entry (DT_JMPREL, 0))
2711 if (!add_dynamic_entry (DT_RELA, 0)
2712 || !add_dynamic_entry (DT_RELASZ, 0)
2713 || !add_dynamic_entry (DT_RELAENT,
2714 SPARC_ELF_RELA_BYTES (htab)))
2717 /* If any dynamic relocs apply to a read-only section,
2718 then we need a DT_TEXTREL entry. */
2719 if ((info->flags & DF_TEXTREL) == 0)
2720 elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info);
2722 if (info->flags & DF_TEXTREL)
2724 if (!add_dynamic_entry (DT_TEXTREL, 0))
2728 if (ABI_64_P (output_bfd))
2731 struct _bfd_sparc_elf_app_reg * app_regs;
2732 struct elf_strtab_hash *dynstr;
2733 struct elf_link_hash_table *eht = elf_hash_table (info);
2735 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2736 entries if needed. */
2737 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2738 dynstr = eht->dynstr;
2740 for (reg = 0; reg < 4; reg++)
2741 if (app_regs [reg].name != NULL)
2743 struct elf_link_local_dynamic_entry *entry, *e;
2745 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2748 entry = (struct elf_link_local_dynamic_entry *)
2749 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2753 /* We cheat here a little bit: the symbol will not be local, so we
2754 put it at the end of the dynlocal linked list. We will fix it
2755 later on, as we have to fix other fields anyway. */
2756 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2757 entry->isym.st_size = 0;
2758 if (*app_regs [reg].name != '\0')
2760 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2762 entry->isym.st_name = 0;
2763 entry->isym.st_other = 0;
2764 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2766 entry->isym.st_shndx = app_regs [reg].shndx;
2767 entry->isym.st_target_internal = 0;
2769 entry->input_bfd = output_bfd;
2770 entry->input_indx = -1;
2772 if (eht->dynlocal == NULL)
2773 eht->dynlocal = entry;
2776 for (e = eht->dynlocal; e->next; e = e->next)
2783 if (htab->is_vxworks
2784 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2787 #undef add_dynamic_entry
2793 _bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2795 if (!sec->used_by_bfd)
2797 struct _bfd_sparc_elf_section_data *sdata;
2798 bfd_size_type amt = sizeof (*sdata);
2800 sdata = bfd_zalloc (abfd, amt);
2803 sec->used_by_bfd = sdata;
2806 return _bfd_elf_new_section_hook (abfd, sec);
2810 _bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2811 struct bfd_section *section,
2812 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2815 if (bfd_link_relocatable (link_info))
2816 (*link_info->callbacks->einfo)
2817 (_("%P%F: --relax and -r may not be used together\n"));
2820 sec_do_relax (section) = 1;
2824 /* Return the base VMA address which should be subtracted from real addresses
2825 when resolving @dtpoff relocation.
2826 This is PT_TLS segment p_vaddr. */
2829 dtpoff_base (struct bfd_link_info *info)
2831 /* If tls_sec is NULL, we should have signalled an error already. */
2832 if (elf_hash_table (info)->tls_sec == NULL)
2834 return elf_hash_table (info)->tls_sec->vma;
2837 /* Return the relocation value for @tpoff relocation
2838 if STT_TLS virtual address is ADDRESS. */
2841 tpoff (struct bfd_link_info *info, bfd_vma address)
2843 struct elf_link_hash_table *htab = elf_hash_table (info);
2844 const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd);
2845 bfd_vma static_tls_size;
2847 /* If tls_sec is NULL, we should have signalled an error already. */
2848 if (htab->tls_sec == NULL)
2851 /* Consider special static TLS alignment requirements. */
2852 static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment);
2853 return address - static_tls_size - htab->tls_sec->vma;
2856 /* Return the relocation value for a %gdop relocation. */
2859 gdopoff (struct bfd_link_info *info, bfd_vma address)
2861 struct elf_link_hash_table *htab = elf_hash_table (info);
2864 got_base = (htab->hgot->root.u.def.value
2865 + htab->hgot->root.u.def.section->output_offset
2866 + htab->hgot->root.u.def.section->output_section->vma);
2868 return address - got_base;
2871 /* Return whether H is local and its ADDRESS is within 4G of
2872 _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a
2873 sethi, xor sequence. */
2876 gdop_relative_offset_ok (struct bfd_link_info *info,
2877 struct elf_link_hash_entry *h,
2878 bfd_vma address ATTRIBUTE_UNUSED)
2880 if (!SYMBOL_REFERENCES_LOCAL (info, h))
2882 /* If H is undefined, ADDRESS will be zero. We can't allow a
2883 relative offset to "zero" when producing PIEs or shared libs.
2884 Note that to get here with an undefined symbol it must also be
2885 hidden or internal visibility. */
2886 if (bfd_link_pic (info)
2888 && (h->root.type == bfd_link_hash_undefweak
2889 || h->root.type == bfd_link_hash_undefined))
2892 return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32;
2898 /* Relocate a SPARC ELF section. */
2901 _bfd_sparc_elf_relocate_section (bfd *output_bfd,
2902 struct bfd_link_info *info,
2904 asection *input_section,
2906 Elf_Internal_Rela *relocs,
2907 Elf_Internal_Sym *local_syms,
2908 asection **local_sections)
2910 struct _bfd_sparc_elf_link_hash_table *htab;
2911 Elf_Internal_Shdr *symtab_hdr;
2912 struct elf_link_hash_entry **sym_hashes;
2913 bfd_vma *local_got_offsets;
2916 Elf_Internal_Rela *rel;
2917 Elf_Internal_Rela *relend;
2919 bfd_boolean is_vxworks_tls;
2921 htab = _bfd_sparc_elf_hash_table (info);
2922 BFD_ASSERT (htab != NULL);
2923 symtab_hdr = &elf_symtab_hdr (input_bfd);
2924 sym_hashes = elf_sym_hashes (input_bfd);
2925 local_got_offsets = elf_local_got_offsets (input_bfd);
2927 if (elf_hash_table (info)->hgot == NULL)
2930 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2932 sreloc = elf_section_data (input_section)->sreloc;
2933 /* We have to handle relocations in vxworks .tls_vars sections
2934 specially, because the dynamic loader is 'weird'. */
2935 is_vxworks_tls = (htab->is_vxworks && bfd_link_pic (info)
2936 && !strcmp (input_section->output_section->name,
2940 if (ABI_64_P (output_bfd))
2941 num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section));
2943 num_relocs = input_section->reloc_count;
2944 relend = relocs + num_relocs;
2945 for (; rel < relend; rel++)
2947 int r_type, tls_type;
2948 reloc_howto_type *howto;
2949 unsigned long r_symndx;
2950 struct elf_link_hash_entry *h;
2951 struct _bfd_sparc_elf_link_hash_entry *eh;
2952 Elf_Internal_Sym *sym;
2954 bfd_vma relocation, off;
2955 bfd_reloc_status_type r;
2956 bfd_boolean is_plt = FALSE;
2957 bfd_boolean unresolved_reloc;
2958 bfd_boolean resolved_to_zero;
2959 bfd_boolean relative_reloc;
2961 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2962 if (r_type == R_SPARC_GNU_VTINHERIT
2963 || r_type == R_SPARC_GNU_VTENTRY)
2966 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2968 bfd_set_error (bfd_error_bad_value);
2971 howto = _bfd_sparc_elf_howto_table + r_type;
2973 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2977 unresolved_reloc = FALSE;
2978 if (r_symndx < symtab_hdr->sh_info)
2980 sym = local_syms + r_symndx;
2981 sec = local_sections[r_symndx];
2982 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2984 if (!bfd_link_relocatable (info)
2985 && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)
2987 /* Relocate against local STT_GNU_IFUNC symbol. */
2988 h = elf_sparc_get_local_sym_hash (htab, input_bfd,
2993 /* Set STT_GNU_IFUNC symbol value. */
2994 h->root.u.def.value = sym->st_value;
2995 h->root.u.def.section = sec;
3000 bfd_boolean warned, ignored;
3002 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
3003 r_symndx, symtab_hdr, sym_hashes,
3005 unresolved_reloc, warned, ignored);
3008 /* To avoid generating warning messages about truncated
3009 relocations, set the relocation's address to be the same as
3010 the start of this section. */
3011 if (input_section->output_section != NULL)
3012 relocation = input_section->output_section->vma;
3018 if (sec != NULL && discarded_section (sec))
3019 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3020 rel, 1, relend, howto, 0, contents);
3022 if (bfd_link_relocatable (info))
3026 && h->type == STT_GNU_IFUNC
3032 if ((input_section->flags & SEC_ALLOC) == 0
3033 || h->plt.offset == (bfd_vma) -1)
3036 plt_sec = htab->elf.splt;
3038 plt_sec =htab->elf.iplt;
3042 case R_SPARC_GOTDATA_OP:
3045 case R_SPARC_GOTDATA_OP_HIX22:
3046 case R_SPARC_GOTDATA_OP_LOX10:
3047 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3050 howto = _bfd_sparc_elf_howto_table + r_type;
3056 if (htab->elf.sgot == NULL)
3058 off = h->got.offset;
3059 if (off == (bfd_vma) -1)
3061 relocation = htab->elf.sgot->output_offset + off - got_base;
3064 case R_SPARC_WPLT30:
3065 case R_SPARC_WDISP30:
3066 relocation = (plt_sec->output_section->vma
3067 + plt_sec->output_offset + h->plt.offset);
3072 if (bfd_link_pic (info) && h->non_got_ref)
3074 Elf_Internal_Rela outrel;
3077 offset = _bfd_elf_section_offset (output_bfd, info,
3080 if (offset == (bfd_vma) -1
3081 || offset == (bfd_vma) -2)
3084 outrel.r_offset = (input_section->output_section->vma
3085 + input_section->output_offset
3088 if (h->dynindx == -1
3090 || bfd_link_executable (info))
3092 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3093 0, R_SPARC_IRELATIVE);
3094 outrel.r_addend = relocation + rel->r_addend;
3098 if (h->dynindx == -1)
3100 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3101 outrel.r_addend = rel->r_addend;
3104 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3108 relocation = (plt_sec->output_section->vma
3109 + plt_sec->output_offset + h->plt.offset);
3114 /* We should only see such relocs in static links. */
3115 if (bfd_link_pic (info))
3117 relocation = (plt_sec->output_section->vma
3118 + plt_sec->output_offset + h->plt.offset);
3122 if (h->root.root.string)
3123 name = h->root.root.string;
3125 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
3128 /* xgettext:c-format */
3129 (_("%B: relocation %s against STT_GNU_IFUNC "
3130 "symbol `%s' isn't handled by %s"), input_bfd,
3131 _bfd_sparc_elf_howto_table[r_type].name,
3132 name, __FUNCTION__);
3133 bfd_set_error (bfd_error_bad_value);
3138 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
3139 resolved_to_zero = (eh != NULL
3140 && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh));
3144 case R_SPARC_GOTDATA_OP_HIX22:
3145 case R_SPARC_GOTDATA_OP_LOX10:
3146 if (gdop_relative_offset_ok (info, h, relocation))
3148 r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22
3149 ? R_SPARC_GOTDATA_HIX22
3150 : R_SPARC_GOTDATA_LOX10);
3151 howto = _bfd_sparc_elf_howto_table + r_type;
3155 case R_SPARC_GOTDATA_OP:
3156 if (gdop_relative_offset_ok (info, h, relocation))
3158 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3160 /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */
3161 relocation = 0x80000000 | (insn & 0x3e07c01f);
3162 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3169 case R_SPARC_GOTDATA_HIX22:
3170 case R_SPARC_GOTDATA_LOX10:
3171 relocation = gdopoff (info, relocation);
3174 case R_SPARC_GOTDATA_OP_HIX22:
3175 case R_SPARC_GOTDATA_OP_LOX10:
3179 /* Relocation is to the entry for this symbol in the global
3181 if (htab->elf.sgot == NULL)
3184 relative_reloc = FALSE;
3189 off = h->got.offset;
3190 BFD_ASSERT (off != (bfd_vma) -1);
3191 dyn = elf_hash_table (info)->dynamic_sections_created;
3193 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3194 bfd_link_pic (info),
3196 || (bfd_link_pic (info)
3197 && SYMBOL_REFERENCES_LOCAL (info, h)))
3199 /* This is actually a static link, or it is a
3200 -Bsymbolic link and the symbol is defined
3201 locally, or the symbol was forced to be local
3202 because of a version file. We must initialize
3203 this entry in the global offset table. Since the
3204 offset must always be a multiple of 8 for 64-bit
3205 and 4 for 32-bit, we use the least significant bit
3206 to record whether we have initialized it already.
3208 When doing a dynamic link, we create a .rela.got
3209 relocation entry to initialize the value. This
3210 is done in the finish_dynamic_symbol routine. */
3215 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3216 htab->elf.sgot->contents + off);
3219 if (h->dynindx == -1
3221 && h->root.type != bfd_link_hash_undefweak
3222 && bfd_link_pic (info))
3224 /* If this symbol isn't dynamic in PIC
3225 generate R_SPARC_RELATIVE here. */
3226 relative_reloc = TRUE;
3231 unresolved_reloc = FALSE;
3235 BFD_ASSERT (local_got_offsets != NULL
3236 && local_got_offsets[r_symndx] != (bfd_vma) -1);
3238 off = local_got_offsets[r_symndx];
3240 /* The offset must always be a multiple of 8 on 64-bit and
3241 4 on 32-bit. We use the least significant bit to record
3242 whether we have already processed this entry. */
3247 if (bfd_link_pic (info))
3249 relative_reloc = TRUE;
3252 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
3253 htab->elf.sgot->contents + off);
3254 local_got_offsets[r_symndx] |= 1;
3261 Elf_Internal_Rela outrel;
3263 /* We need to generate a R_SPARC_RELATIVE reloc
3264 for the dynamic linker. */
3265 s = htab->elf.srelgot;
3266 BFD_ASSERT (s != NULL);
3268 outrel.r_offset = (htab->elf.sgot->output_section->vma
3269 + htab->elf.sgot->output_offset
3271 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3272 0, R_SPARC_RELATIVE);
3273 outrel.r_addend = relocation;
3275 sparc_elf_append_rela (output_bfd, s, &outrel);
3278 relocation = htab->elf.sgot->output_offset + off - got_base;
3283 if (h == NULL || h->plt.offset == (bfd_vma) -1)
3285 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
3290 case R_SPARC_WPLT30:
3291 case R_SPARC_HIPLT22:
3292 case R_SPARC_LOPLT10:
3293 case R_SPARC_PCPLT32:
3294 case R_SPARC_PCPLT22:
3295 case R_SPARC_PCPLT10:
3297 /* Relocation is to the entry for this symbol in the
3298 procedure linkage table. */
3300 if (! ABI_64_P (output_bfd))
3302 /* The Solaris native assembler will generate a WPLT30 reloc
3303 for a local symbol if you assemble a call from one
3304 section to another when using -K pic. We treat it as
3309 /* PR 7027: We need similar behaviour for 64-bit binaries. */
3310 else if (r_type == R_SPARC_WPLT30 && h == NULL)
3314 BFD_ASSERT (h != NULL);
3317 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
3319 /* We didn't make a PLT entry for this symbol. This
3320 happens when statically linking PIC code, or when
3321 using -Bsymbolic. */
3325 relocation = (htab->elf.splt->output_section->vma
3326 + htab->elf.splt->output_offset
3328 unresolved_reloc = FALSE;
3329 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
3331 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
3339 case R_SPARC_PC_HH22:
3340 case R_SPARC_PC_HM10:
3341 case R_SPARC_PC_LM22:
3343 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3347 case R_SPARC_DISP16:
3348 case R_SPARC_DISP32:
3349 case R_SPARC_DISP64:
3350 case R_SPARC_WDISP30:
3351 case R_SPARC_WDISP22:
3352 case R_SPARC_WDISP19:
3353 case R_SPARC_WDISP16:
3354 case R_SPARC_WDISP10:
3382 if ((input_section->flags & SEC_ALLOC) == 0
3386 /* Copy dynamic function pointer relocations. Don't generate
3387 dynamic relocations against resolved undefined weak symbols
3389 if ((bfd_link_pic (info)
3391 || ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
3392 && !resolved_to_zero)
3393 || h->root.type != bfd_link_hash_undefweak))
3394 && (! howto->pc_relative
3395 || !SYMBOL_CALLS_LOCAL (info, h)))
3396 || (!bfd_link_pic (info)
3402 || (h->root.type == bfd_link_hash_undefweak
3403 && !resolved_to_zero)
3404 || h->root.type == bfd_link_hash_undefined)))
3406 Elf_Internal_Rela outrel;
3407 bfd_boolean skip, relocate = FALSE;
3409 /* When generating a shared object, these relocations
3410 are copied into the output file to be resolved at run
3413 BFD_ASSERT (sreloc != NULL);
3418 _bfd_elf_section_offset (output_bfd, info, input_section,
3420 if (outrel.r_offset == (bfd_vma) -1)
3422 else if (outrel.r_offset == (bfd_vma) -2)
3423 skip = TRUE, relocate = TRUE;
3424 outrel.r_offset += (input_section->output_section->vma
3425 + input_section->output_offset);
3427 /* Optimize unaligned reloc usage now that we know where
3428 it finally resides. */
3432 if (outrel.r_offset & 1)
3433 r_type = R_SPARC_UA16;
3436 if (!(outrel.r_offset & 1))
3437 r_type = R_SPARC_16;
3440 if (outrel.r_offset & 3)
3441 r_type = R_SPARC_UA32;
3444 if (!(outrel.r_offset & 3))
3445 r_type = R_SPARC_32;
3448 if (outrel.r_offset & 7)
3449 r_type = R_SPARC_UA64;
3452 if (!(outrel.r_offset & 7))
3453 r_type = R_SPARC_64;
3456 case R_SPARC_DISP16:
3457 case R_SPARC_DISP32:
3458 case R_SPARC_DISP64:
3459 /* If the symbol is not dynamic, we should not keep
3460 a dynamic relocation. But an .rela.* slot has been
3461 allocated for it, output R_SPARC_NONE.
3462 FIXME: Add code tracking needed dynamic relocs as
3464 if (h->dynindx == -1)
3465 skip = TRUE, relocate = TRUE;
3470 memset (&outrel, 0, sizeof outrel);
3471 /* h->dynindx may be -1 if the symbol was marked to
3475 && (_bfd_sparc_elf_howto_table[r_type].pc_relative
3476 || !bfd_link_pic (info)
3477 || !SYMBOLIC_BIND (info, h)
3478 || !h->def_regular))
3480 BFD_ASSERT (h->dynindx != -1);
3481 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
3482 outrel.r_addend = rel->r_addend;
3486 if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32)
3487 || (ABI_64_P (output_bfd) && r_type == R_SPARC_64))
3489 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
3490 0, R_SPARC_RELATIVE);
3491 outrel.r_addend = relocation + rel->r_addend;
3497 outrel.r_addend = relocation + rel->r_addend;
3500 sec = htab->elf.splt;
3502 if (bfd_is_abs_section (sec))
3504 else if (sec == NULL || sec->owner == NULL)
3506 bfd_set_error (bfd_error_bad_value);
3513 /* We are turning this relocation into one
3514 against a section symbol. It would be
3515 proper to subtract the symbol's value,
3516 osec->vma, from the emitted reloc addend,
3517 but ld.so expects buggy relocs. */
3518 osec = sec->output_section;
3519 indx = elf_section_data (osec)->dynindx;
3523 osec = htab->elf.text_index_section;
3524 indx = elf_section_data (osec)->dynindx;
3527 /* FIXME: we really should be able to link non-pic
3528 shared libraries. */
3533 (_("%B: probably compiled without -fPIC?"),
3535 bfd_set_error (bfd_error_bad_value);
3540 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
3545 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3547 /* This reloc will be computed at runtime, so there's no
3548 need to do anything now. */
3554 case R_SPARC_TLS_GD_HI22:
3555 if (! ABI_64_P (input_bfd)
3556 && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
3558 /* R_SPARC_REV32 used the same reloc number as
3559 R_SPARC_TLS_GD_HI22. */
3560 r_type = R_SPARC_REV32;
3565 case R_SPARC_TLS_GD_LO10:
3566 case R_SPARC_TLS_IE_HI22:
3567 case R_SPARC_TLS_IE_LO10:
3568 r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
3569 tls_type = GOT_UNKNOWN;
3570 if (h == NULL && local_got_offsets)
3571 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3574 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3575 if (bfd_link_executable (info)
3577 && tls_type == GOT_TLS_IE)
3578 switch (SPARC_ELF_R_TYPE (rel->r_info))
3580 case R_SPARC_TLS_GD_HI22:
3581 case R_SPARC_TLS_IE_HI22:
3582 r_type = R_SPARC_TLS_LE_HIX22;
3585 r_type = R_SPARC_TLS_LE_LOX10;
3589 if (tls_type == GOT_TLS_IE)
3592 case R_SPARC_TLS_GD_HI22:
3593 r_type = R_SPARC_TLS_IE_HI22;
3595 case R_SPARC_TLS_GD_LO10:
3596 r_type = R_SPARC_TLS_IE_LO10;
3600 if (r_type == R_SPARC_TLS_LE_HIX22)
3602 relocation = tpoff (info, relocation);
3605 if (r_type == R_SPARC_TLS_LE_LOX10)
3607 /* Change add into xor. */
3608 relocation = tpoff (info, relocation);
3609 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3610 contents + rel->r_offset)
3611 | 0x80182000), contents + rel->r_offset);
3617 off = h->got.offset;
3622 BFD_ASSERT (local_got_offsets != NULL);
3623 off = local_got_offsets[r_symndx];
3624 local_got_offsets[r_symndx] |= 1;
3628 if (htab->elf.sgot == NULL)
3635 Elf_Internal_Rela outrel;
3638 if (htab->elf.srelgot == NULL)
3641 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3642 htab->elf.sgot->contents + off);
3643 outrel.r_offset = (htab->elf.sgot->output_section->vma
3644 + htab->elf.sgot->output_offset + off);
3645 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3646 if (r_type == R_SPARC_TLS_IE_HI22
3647 || r_type == R_SPARC_TLS_IE_LO10)
3648 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3650 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3651 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3652 outrel.r_addend = relocation - dtpoff_base (info);
3654 outrel.r_addend = 0;
3655 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
3656 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3658 if (r_type == R_SPARC_TLS_GD_HI22
3659 || r_type == R_SPARC_TLS_GD_LO10)
3663 BFD_ASSERT (! unresolved_reloc);
3664 SPARC_ELF_PUT_WORD (htab, output_bfd,
3665 relocation - dtpoff_base (info),
3666 (htab->elf.sgot->contents + off
3667 + SPARC_ELF_WORD_BYTES (htab)));
3671 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3672 (htab->elf.sgot->contents + off
3673 + SPARC_ELF_WORD_BYTES (htab)));
3674 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3675 SPARC_ELF_DTPOFF_RELOC (htab));
3676 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
3677 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
3681 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3683 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3684 (htab->elf.sgot->contents + off
3685 + SPARC_ELF_WORD_BYTES (htab)));
3689 if (off >= (bfd_vma) -2)
3692 relocation = htab->elf.sgot->output_offset + off - got_base;
3693 unresolved_reloc = FALSE;
3694 howto = _bfd_sparc_elf_howto_table + r_type;
3697 case R_SPARC_TLS_LDM_HI22:
3698 case R_SPARC_TLS_LDM_LO10:
3699 if (! bfd_link_pic (info))
3701 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3704 off = htab->tls_ldm_got.offset;
3705 htab->tls_ldm_got.offset |= 1;
3706 goto r_sparc_tlsldm;
3708 case R_SPARC_TLS_LDO_HIX22:
3709 case R_SPARC_TLS_LDO_LOX10:
3710 if (bfd_link_pic (info))
3712 relocation -= dtpoff_base (info);
3716 r_type = (r_type == R_SPARC_TLS_LDO_HIX22
3717 ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
3720 case R_SPARC_TLS_LE_HIX22:
3721 case R_SPARC_TLS_LE_LOX10:
3722 if (!bfd_link_executable (info))
3724 Elf_Internal_Rela outrel;
3727 BFD_ASSERT (sreloc != NULL);
3730 _bfd_elf_section_offset (output_bfd, info, input_section,
3732 if (outrel.r_offset == (bfd_vma) -1)
3734 else if (outrel.r_offset == (bfd_vma) -2)
3736 outrel.r_offset += (input_section->output_section->vma
3737 + input_section->output_offset);
3739 memset (&outrel, 0, sizeof outrel);
3742 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3743 outrel.r_addend = relocation - dtpoff_base (info)
3747 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3750 relocation = tpoff (info, relocation);
3753 case R_SPARC_TLS_LDM_CALL:
3754 if (bfd_link_executable (info))
3757 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3762 case R_SPARC_TLS_GD_CALL:
3763 tls_type = GOT_UNKNOWN;
3764 if (h == NULL && local_got_offsets)
3765 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3767 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3768 if (bfd_link_executable (info)
3769 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3771 Elf_Internal_Rela *rel2;
3774 if (!bfd_link_pic (info) && (h == NULL || h->dynindx == -1))
3777 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3782 if (rel + 1 < relend
3783 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3784 && rel[1].r_offset == rel->r_offset + 4
3785 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3786 && (((insn = bfd_get_32 (input_bfd,
3787 contents + rel[1].r_offset))
3788 >> 25) & 0x1f) == 8)
3791 call __tls_get_addr, %tgd_call(foo)
3792 add %reg1, %reg2, %o0, %tgd_add(foo)
3793 and change it into IE:
3794 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3795 add %g7, %o0, %o0, %tie_add(foo).
3796 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3797 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3798 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3799 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3800 contents + rel->r_offset);
3801 bfd_put_32 (output_bfd, 0x9001c008,
3802 contents + rel->r_offset + 4);
3807 /* We cannot just overwrite the delay slot instruction,
3808 as it might be what puts the %o0 argument to
3809 __tls_get_addr into place. So we have to transpose
3810 the delay slot with the add we patch in. */
3811 insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3812 bfd_put_32 (output_bfd, insn,
3813 contents + rel->r_offset);
3814 bfd_put_32 (output_bfd, 0x9001c008,
3815 contents + rel->r_offset + 4);
3818 while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend,
3822 /* If the instruction we moved has a relocation attached to
3823 it, adjust the offset so that it will apply to the correct
3825 rel2->r_offset -= 4;
3830 h = (struct elf_link_hash_entry *)
3831 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3833 BFD_ASSERT (h != NULL);
3834 r_type = R_SPARC_WPLT30;
3835 howto = _bfd_sparc_elf_howto_table + r_type;
3836 goto r_sparc_wplt30;
3838 case R_SPARC_TLS_GD_ADD:
3839 tls_type = GOT_UNKNOWN;
3840 if (h == NULL && local_got_offsets)
3841 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3843 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3844 if (! bfd_link_pic (info) || tls_type == GOT_TLS_IE)
3846 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3848 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3850 add %g7, %reg2, %reg3. */
3851 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3852 if ((h != NULL && h->dynindx != -1) || bfd_link_pic (info))
3853 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
3855 relocation = (insn & ~0x7c000) | 0x1c000;
3856 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3860 case R_SPARC_TLS_LDM_ADD:
3861 if (! bfd_link_pic (info))
3862 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3865 case R_SPARC_TLS_LDO_ADD:
3866 if (! bfd_link_pic (info))
3868 /* Change rs1 into %g7. */
3869 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3870 insn = (insn & ~0x7c000) | 0x1c000;
3871 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3875 case R_SPARC_TLS_IE_LD:
3876 case R_SPARC_TLS_IE_LDX:
3877 if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1))
3879 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3880 int rs2 = insn & 0x1f;
3881 int rd = (insn >> 25) & 0x1f;
3884 relocation = SPARC_NOP;
3886 relocation = 0x80100000 | (insn & 0x3e00001f);
3887 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3891 case R_SPARC_TLS_IE_ADD:
3892 /* Totally useless relocation. */
3895 case R_SPARC_TLS_DTPOFF32:
3896 case R_SPARC_TLS_DTPOFF64:
3897 relocation -= dtpoff_base (info);
3904 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3905 because such sections are not SEC_ALLOC and thus ld.so will
3906 not process them. */
3907 if (unresolved_reloc
3908 && !((input_section->flags & SEC_DEBUGGING) != 0
3910 && _bfd_elf_section_offset (output_bfd, info, input_section,
3911 rel->r_offset) != (bfd_vma) -1)
3913 /* xgettext:c-format */
3914 (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"),
3919 h->root.root.string);
3921 r = bfd_reloc_continue;
3922 if (r_type == R_SPARC_OLO10)
3926 if (! ABI_64_P (output_bfd))
3929 relocation += rel->r_addend;
3930 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3932 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3933 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3934 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3936 r = bfd_check_overflow (howto->complain_on_overflow,
3937 howto->bitsize, howto->rightshift,
3938 bfd_arch_bits_per_address (input_bfd),
3941 else if (r_type == R_SPARC_WDISP16)
3945 relocation += rel->r_addend;
3946 relocation -= (input_section->output_section->vma
3947 + input_section->output_offset);
3948 relocation -= rel->r_offset;
3950 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3951 x |= ((((relocation >> 2) & 0xc000) << 6)
3952 | ((relocation >> 2) & 0x3fff));
3953 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3955 r = bfd_check_overflow (howto->complain_on_overflow,
3956 howto->bitsize, howto->rightshift,
3957 bfd_arch_bits_per_address (input_bfd),
3960 else if (r_type == R_SPARC_WDISP10)
3964 relocation += rel->r_addend;
3965 relocation -= (input_section->output_section->vma
3966 + input_section->output_offset);
3967 relocation -= rel->r_offset;
3969 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3970 x |= ((((relocation >> 2) & 0x300) << 11)
3971 | (((relocation >> 2) & 0xff) << 5));
3972 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3974 r = bfd_check_overflow (howto->complain_on_overflow,
3975 howto->bitsize, howto->rightshift,
3976 bfd_arch_bits_per_address (input_bfd),
3979 else if (r_type == R_SPARC_REV32)
3983 relocation = relocation + rel->r_addend;
3985 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3987 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
3990 else if (r_type == R_SPARC_TLS_LDO_HIX22
3991 || r_type == R_SPARC_TLS_LE_HIX22)
3995 relocation += rel->r_addend;
3996 if (r_type == R_SPARC_TLS_LE_HIX22)
3997 relocation ^= MINUS_ONE;
3999 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4000 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4001 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4004 else if (r_type == R_SPARC_TLS_LDO_LOX10
4005 || r_type == R_SPARC_TLS_LE_LOX10)
4009 relocation += rel->r_addend;
4010 relocation &= 0x3ff;
4011 if (r_type == R_SPARC_TLS_LE_LOX10)
4012 relocation |= 0x1c00;
4014 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4015 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4016 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4020 else if (r_type == R_SPARC_HIX22
4021 || r_type == R_SPARC_GOTDATA_HIX22
4022 || r_type == R_SPARC_GOTDATA_OP_HIX22)
4026 relocation += rel->r_addend;
4027 if (r_type == R_SPARC_HIX22
4028 || (bfd_signed_vma) relocation < 0)
4029 relocation = relocation ^ MINUS_ONE;
4031 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4032 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
4033 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4035 r = bfd_check_overflow (howto->complain_on_overflow,
4036 howto->bitsize, howto->rightshift,
4037 bfd_arch_bits_per_address (input_bfd),
4040 else if (r_type == R_SPARC_LOX10
4041 || r_type == R_SPARC_GOTDATA_LOX10
4042 || r_type == R_SPARC_GOTDATA_OP_LOX10)
4046 relocation += rel->r_addend;
4047 if (r_type == R_SPARC_LOX10
4048 || (bfd_signed_vma) relocation < 0)
4049 relocation = (relocation & 0x3ff) | 0x1c00;
4051 relocation = (relocation & 0x3ff);
4053 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4054 x = (x & ~(bfd_vma) 0x1fff) | relocation;
4055 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4059 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
4060 && sec_do_relax (input_section)
4061 && rel->r_offset + 4 < input_section->size)
4065 #define XCC (2 << 20)
4066 #define COND(x) (((x)&0xf)<<25)
4067 #define CONDA COND(0x8)
4068 #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
4069 #define INSN_BA (F2(0,2) | CONDA)
4070 #define INSN_OR F3(2, 0x2, 0)
4071 #define INSN_NOP F2(0,4)
4075 /* If the instruction is a call with either:
4077 arithmetic instruction with rd == %o7
4078 where rs1 != %o7 and rs2 if it is register != %o7
4079 then we can optimize if the call destination is near
4080 by changing the call into a branch always. */
4081 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
4082 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
4083 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
4085 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
4086 || ((y & OP3(0x28)) == 0 /* arithmetic */
4087 && (y & RD(~0)) == RD(O7)))
4088 && (y & RS1(~0)) != RS1(O7)
4090 || (y & RS2(~0)) != RS2(O7)))
4094 reloc = relocation + rel->r_addend - rel->r_offset;
4095 reloc -= (input_section->output_section->vma
4096 + input_section->output_offset);
4098 /* Ensure the branch fits into simm22. */
4099 if ((reloc & 3) == 0
4100 && ((reloc & ~(bfd_vma)0x7fffff) == 0
4101 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
4105 /* Check whether it fits into simm19. */
4106 if (((reloc & 0x3c0000) == 0
4107 || (reloc & 0x3c0000) == 0x3c0000)
4108 && (ABI_64_P (output_bfd)
4109 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
4110 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
4112 x = INSN_BA | (reloc & 0x3fffff); /* ba */
4113 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
4115 if (rel->r_offset >= 4
4116 && (y & (0xffffffff ^ RS1(~0)))
4117 == (INSN_OR | RD(O7) | RS2(G0)))
4122 z = bfd_get_32 (input_bfd,
4123 contents + rel->r_offset - 4);
4124 if ((z & (0xffffffff ^ RD(~0)))
4125 != (INSN_OR | RS1(O7) | RS2(G0)))
4133 If call foo was replaced with ba, replace
4134 or %rN, %g0, %o7 with nop. */
4136 reg = (y & RS1(~0)) >> 14;
4137 if (reg != ((z & RD(~0)) >> 25)
4138 || reg == G0 || reg == O7)
4141 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
4142 contents + rel->r_offset + 4);
4150 if (r == bfd_reloc_continue)
4153 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
4154 contents, rel->r_offset,
4155 relocation, rel->r_addend);
4157 if (r != bfd_reloc_ok)
4162 case bfd_reloc_outofrange:
4164 case bfd_reloc_overflow:
4168 /* The Solaris native linker silently disregards overflows.
4169 We don't, but this breaks stabs debugging info, whose
4170 relocations are only 32-bits wide. Ignore overflows in
4171 this case and also for discarded entries. */
4172 if ((r_type == R_SPARC_32
4173 || r_type == R_SPARC_UA32
4174 || r_type == R_SPARC_DISP32)
4175 && (((input_section->flags & SEC_DEBUGGING) != 0
4176 && strcmp (bfd_section_name (input_bfd,
4179 || _bfd_elf_section_offset (output_bfd, info,
4187 /* Assume this is a call protected by other code that
4188 detect the symbol is undefined. If this is the case,
4189 we can safely ignore the overflow. If not, the
4190 program is hosed anyway, and a little warning isn't
4192 if (h->root.type == bfd_link_hash_undefweak
4193 && howto->pc_relative)
4200 name = bfd_elf_string_from_elf_section (input_bfd,
4201 symtab_hdr->sh_link,
4206 name = bfd_section_name (input_bfd, sec);
4208 (*info->callbacks->reloc_overflow)
4209 (info, (h ? &h->root : NULL), name, howto->name,
4210 (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
4220 /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
4221 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
4222 is the offset of the associated .got.plt entry from
4223 _GLOBAL_OFFSET_TABLE_. */
4226 sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
4227 bfd_vma plt_offset, bfd_vma plt_index,
4231 const bfd_vma *plt_entry;
4232 struct _bfd_sparc_elf_link_hash_table *htab;
4234 Elf_Internal_Rela rela;
4236 htab = _bfd_sparc_elf_hash_table (info);
4237 BFD_ASSERT (htab != NULL);
4239 if (bfd_link_pic (info))
4241 plt_entry = sparc_vxworks_shared_plt_entry;
4246 plt_entry = sparc_vxworks_exec_plt_entry;
4247 got_base = (htab->elf.hgot->root.u.def.value
4248 + htab->elf.hgot->root.u.def.section->output_offset
4249 + htab->elf.hgot->root.u.def.section->output_section->vma);
4252 /* Fill in the entry in the procedure linkage table. */
4253 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
4254 htab->elf.splt->contents + plt_offset);
4255 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
4256 htab->elf.splt->contents + plt_offset + 4);
4257 bfd_put_32 (output_bfd, plt_entry[2],
4258 htab->elf.splt->contents + plt_offset + 8);
4259 bfd_put_32 (output_bfd, plt_entry[3],
4260 htab->elf.splt->contents + plt_offset + 12);
4261 bfd_put_32 (output_bfd, plt_entry[4],
4262 htab->elf.splt->contents + plt_offset + 16);
4263 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
4264 htab->elf.splt->contents + plt_offset + 20);
4265 /* PC-relative displacement for a branch to the start of
4267 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
4269 htab->elf.splt->contents + plt_offset + 24);
4270 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
4271 htab->elf.splt->contents + plt_offset + 28);
4273 /* Fill in the .got.plt entry, pointing initially at the
4274 second half of the PLT entry. */
4275 BFD_ASSERT (htab->elf.sgotplt != NULL);
4276 bfd_put_32 (output_bfd,
4277 htab->elf.splt->output_section->vma
4278 + htab->elf.splt->output_offset
4280 htab->elf.sgotplt->contents + got_offset);
4282 /* Add relocations to .rela.plt.unloaded. */
4283 if (!bfd_link_pic (info))
4285 loc = (htab->srelplt2->contents
4286 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
4288 /* Relocate the initial sethi. */
4289 rela.r_offset = (htab->elf.splt->output_section->vma
4290 + htab->elf.splt->output_offset
4292 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4293 rela.r_addend = got_offset;
4294 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4295 loc += sizeof (Elf32_External_Rela);
4297 /* Likewise the following or. */
4299 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4300 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4301 loc += sizeof (Elf32_External_Rela);
4303 /* Relocate the .got.plt entry. */
4304 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4305 + htab->elf.sgotplt->output_offset
4307 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4308 rela.r_addend = plt_offset + 20;
4309 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4313 /* Finish up dynamic symbol handling. We set the contents of various
4314 dynamic sections here. */
4317 _bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
4318 struct bfd_link_info *info,
4319 struct elf_link_hash_entry *h,
4320 Elf_Internal_Sym *sym)
4322 struct _bfd_sparc_elf_link_hash_table *htab;
4323 const struct elf_backend_data *bed;
4324 struct _bfd_sparc_elf_link_hash_entry *eh;
4325 bfd_boolean local_undefweak;
4327 htab = _bfd_sparc_elf_hash_table (info);
4328 BFD_ASSERT (htab != NULL);
4329 bed = get_elf_backend_data (output_bfd);
4331 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
4333 /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for
4334 resolved undefined weak symbols in executable so that their
4335 references have value 0 at run-time. */
4336 local_undefweak = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh);
4338 if (h->plt.offset != (bfd_vma) -1)
4342 Elf_Internal_Rela rela;
4344 bfd_vma r_offset, got_offset;
4347 /* When building a static executable, use .iplt and
4348 .rela.iplt sections for STT_GNU_IFUNC symbols. */
4349 if (htab->elf.splt != NULL)
4351 splt = htab->elf.splt;
4352 srela = htab->elf.srelplt;
4356 splt = htab->elf.iplt;
4357 srela = htab->elf.irelplt;
4360 if (splt == NULL || srela == NULL)
4363 /* Fill in the entry in the .rela.plt section. */
4364 if (htab->is_vxworks)
4366 /* Work out the index of this PLT entry. */
4367 rela_index = ((h->plt.offset - htab->plt_header_size)
4368 / htab->plt_entry_size);
4370 /* Calculate the offset of the associated .got.plt entry.
4371 The first three entries are reserved. */
4372 got_offset = (rela_index + 3) * 4;
4374 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
4375 rela_index, got_offset);
4378 /* On VxWorks, the relocation points to the .got.plt entry,
4379 not the .plt entry. */
4380 rela.r_offset = (htab->elf.sgotplt->output_section->vma
4381 + htab->elf.sgotplt->output_offset
4384 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4389 bfd_boolean ifunc = FALSE;
4391 /* Fill in the entry in the procedure linkage table. */
4392 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
4393 h->plt.offset, splt->size,
4398 || ((bfd_link_executable (info)
4399 || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
4401 && h->type == STT_GNU_IFUNC))
4404 BFD_ASSERT (h == NULL
4405 || (h->type == STT_GNU_IFUNC
4407 && (h->root.type == bfd_link_hash_defined
4408 || h->root.type == bfd_link_hash_defweak)));
4411 rela.r_offset = r_offset
4412 + (splt->output_section->vma + splt->output_offset);
4413 if (ABI_64_P (output_bfd)
4414 && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
4418 rela.r_addend = (h->root.u.def.section->output_section->vma
4419 + h->root.u.def.section->output_offset
4420 + h->root.u.def.value);
4421 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4426 rela.r_addend = (-(h->plt.offset + 4)
4427 - splt->output_section->vma
4428 - splt->output_offset);
4429 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4437 rela.r_addend = (h->root.u.def.section->output_section->vma
4438 + h->root.u.def.section->output_offset
4439 + h->root.u.def.value);
4440 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0,
4446 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx,
4452 /* Adjust for the first 4 reserved elements in the .plt section
4453 when setting the offset in the .rela.plt section.
4454 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
4455 thus .plt[4] has corresponding .rela.plt[0] and so on. */
4457 loc = srela->contents;
4458 loc += rela_index * bed->s->sizeof_rela;
4459 bed->s->swap_reloca_out (output_bfd, &rela, loc);
4461 if (!local_undefweak
4464 /* Mark the symbol as undefined, rather than as defined in
4465 the .plt section. Leave the value alone. */
4466 sym->st_shndx = SHN_UNDEF;
4467 /* If the symbol is weak, we do need to clear the value.
4468 Otherwise, the PLT entry would provide a definition for
4469 the symbol even if the symbol wasn't defined anywhere,
4470 and so the symbol would never be NULL. */
4471 if (!h->ref_regular_nonweak)
4476 /* Don't generate dynamic GOT relocation against undefined weak
4477 symbol in executable. */
4478 if (h->got.offset != (bfd_vma) -1
4479 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
4480 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE
4481 && !local_undefweak)
4485 Elf_Internal_Rela rela;
4487 /* This symbol has an entry in the GOT. Set it up. */
4489 sgot = htab->elf.sgot;
4490 srela = htab->elf.srelgot;
4491 BFD_ASSERT (sgot != NULL && srela != NULL);
4493 rela.r_offset = (sgot->output_section->vma
4494 + sgot->output_offset
4495 + (h->got.offset &~ (bfd_vma) 1));
4497 /* If this is a -Bsymbolic link, and the symbol is defined
4498 locally, we just want to emit a RELATIVE reloc. Likewise if
4499 the symbol was forced to be local because of a version file.
4500 The entry in the global offset table will already have been
4501 initialized in the relocate_section function. */
4502 if (! bfd_link_pic (info)
4503 && h->type == STT_GNU_IFUNC
4508 /* We load the GOT entry with the PLT entry. */
4509 plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt;
4510 SPARC_ELF_PUT_WORD (htab, output_bfd,
4511 (plt->output_section->vma
4512 + plt->output_offset + h->plt.offset),
4513 htab->elf.sgot->contents
4514 + (h->got.offset & ~(bfd_vma) 1));
4517 else if (bfd_link_pic (info)
4518 && SYMBOL_REFERENCES_LOCAL (info, h))
4520 asection *sec = h->root.u.def.section;
4521 if (h->type == STT_GNU_IFUNC)
4522 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE);
4524 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
4525 rela.r_addend = (h->root.u.def.value
4526 + sec->output_section->vma
4527 + sec->output_offset);
4531 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
4535 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
4536 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
4537 sparc_elf_append_rela (output_bfd, srela, &rela);
4543 Elf_Internal_Rela rela;
4545 /* This symbols needs a copy reloc. Set it up. */
4546 BFD_ASSERT (h->dynindx != -1);
4548 rela.r_offset = (h->root.u.def.value
4549 + h->root.u.def.section->output_section->vma
4550 + h->root.u.def.section->output_offset);
4551 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
4553 if (h->root.u.def.section == htab->elf.sdynrelro)
4554 s = htab->elf.sreldynrelro;
4556 s = htab->elf.srelbss;
4557 sparc_elf_append_rela (output_bfd, s, &rela);
4560 /* Mark some specially defined symbols as absolute. On VxWorks,
4561 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
4562 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
4564 && (h == htab->elf.hdynamic
4565 || (!htab->is_vxworks
4566 && (h == htab->elf.hgot || h == htab->elf.hplt))))
4567 sym->st_shndx = SHN_ABS;
4572 /* Finish up the dynamic sections. */
4575 sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
4576 bfd *dynobj, asection *sdyn,
4577 asection *splt ATTRIBUTE_UNUSED)
4579 struct _bfd_sparc_elf_link_hash_table *htab;
4580 const struct elf_backend_data *bed;
4581 bfd_byte *dyncon, *dynconend;
4583 int stt_regidx = -1;
4584 bfd_boolean abi_64_p;
4586 htab = _bfd_sparc_elf_hash_table (info);
4587 BFD_ASSERT (htab != NULL);
4588 bed = get_elf_backend_data (output_bfd);
4589 dynsize = bed->s->sizeof_dyn;
4590 dynconend = sdyn->contents + sdyn->size;
4591 abi_64_p = ABI_64_P (output_bfd);
4592 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
4594 Elf_Internal_Dyn dyn;
4597 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
4599 if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
4601 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
4602 not to the start of the PLT. */
4603 if (htab->elf.sgotplt)
4605 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
4606 + htab->elf.sgotplt->output_offset);
4607 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4610 else if (htab->is_vxworks
4611 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
4612 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4613 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
4615 if (stt_regidx == -1)
4618 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
4619 if (stt_regidx == -1)
4622 dyn.d_un.d_val = stt_regidx++;
4623 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4636 s = htab->elf.srelplt;
4640 s = htab->elf.srelplt;
4652 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4654 dyn.d_un.d_val = s->size;
4656 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
4662 /* Install the first PLT entry in a VxWorks executable and make sure that
4663 .rela.plt.unloaded relocations have the correct symbol indexes. */
4666 sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
4668 struct _bfd_sparc_elf_link_hash_table *htab;
4669 Elf_Internal_Rela rela;
4673 htab = _bfd_sparc_elf_hash_table (info);
4674 BFD_ASSERT (htab != NULL);
4676 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
4677 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
4678 + htab->elf.hgot->root.u.def.section->output_offset
4679 + htab->elf.hgot->root.u.def.value);
4681 /* Install the initial PLT entry. */
4682 bfd_put_32 (output_bfd,
4683 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
4684 htab->elf.splt->contents);
4685 bfd_put_32 (output_bfd,
4686 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
4687 htab->elf.splt->contents + 4);
4688 bfd_put_32 (output_bfd,
4689 sparc_vxworks_exec_plt0_entry[2],
4690 htab->elf.splt->contents + 8);
4691 bfd_put_32 (output_bfd,
4692 sparc_vxworks_exec_plt0_entry[3],
4693 htab->elf.splt->contents + 12);
4694 bfd_put_32 (output_bfd,
4695 sparc_vxworks_exec_plt0_entry[4],
4696 htab->elf.splt->contents + 16);
4698 loc = htab->srelplt2->contents;
4700 /* Add an unloaded relocation for the initial entry's "sethi". */
4701 rela.r_offset = (htab->elf.splt->output_section->vma
4702 + htab->elf.splt->output_offset);
4703 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4705 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4706 loc += sizeof (Elf32_External_Rela);
4708 /* Likewise the following "or". */
4710 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4711 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4712 loc += sizeof (Elf32_External_Rela);
4714 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4715 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4716 in which symbols were output. */
4717 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
4719 Elf_Internal_Rela rel;
4721 /* The entry's initial "sethi" (against _G_O_T_). */
4722 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4723 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
4724 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4725 loc += sizeof (Elf32_External_Rela);
4727 /* The following "or" (also against _G_O_T_). */
4728 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4729 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
4730 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4731 loc += sizeof (Elf32_External_Rela);
4733 /* The .got.plt entry (against _P_L_T_). */
4734 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4735 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4736 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4737 loc += sizeof (Elf32_External_Rela);
4741 /* Install the first PLT entry in a VxWorks shared object. */
4744 sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4746 struct _bfd_sparc_elf_link_hash_table *htab;
4749 htab = _bfd_sparc_elf_hash_table (info);
4750 BFD_ASSERT (htab != NULL);
4752 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4753 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
4754 htab->elf.splt->contents + i * 4);
4757 /* Finish up local dynamic symbol handling. We set the contents of
4758 various dynamic sections here. */
4761 finish_local_dynamic_symbol (void **slot, void *inf)
4763 struct elf_link_hash_entry *h
4764 = (struct elf_link_hash_entry *) *slot;
4765 struct bfd_link_info *info
4766 = (struct bfd_link_info *) inf;
4768 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4772 /* Finish up undefined weak symbol handling in PIE. Fill its PLT entry
4773 here since undefined weak symbol may not be dynamic and may not be
4774 called for _bfd_sparc_elf_finish_dynamic_symbol. */
4777 pie_finish_undefweak_symbol (struct bfd_hash_entry *bh,
4780 struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh;
4781 struct bfd_link_info *info = (struct bfd_link_info *) inf;
4783 if (h->root.type != bfd_link_hash_undefweak
4784 || h->dynindx != -1)
4787 return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info,
4792 _bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4796 struct _bfd_sparc_elf_link_hash_table *htab;
4798 htab = _bfd_sparc_elf_hash_table (info);
4799 BFD_ASSERT (htab != NULL);
4800 dynobj = htab->elf.dynobj;
4802 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4804 if (elf_hash_table (info)->dynamic_sections_created)
4808 splt = htab->elf.splt;
4809 BFD_ASSERT (splt != NULL && sdyn != NULL);
4811 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4814 /* Initialize the contents of the .plt section. */
4817 if (htab->is_vxworks)
4819 if (bfd_link_pic (info))
4820 sparc_vxworks_finish_shared_plt (output_bfd, info);
4822 sparc_vxworks_finish_exec_plt (output_bfd, info);
4826 memset (splt->contents, 0, htab->plt_header_size);
4827 if (!ABI_64_P (output_bfd))
4828 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4829 splt->contents + splt->size - 4);
4833 if (elf_section_data (splt->output_section) != NULL)
4834 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4835 = ((htab->is_vxworks || !ABI_64_P (output_bfd))
4836 ? 0 : htab->plt_entry_size);
4839 /* Set the first entry in the global offset table to the address of
4840 the dynamic section. */
4841 if (htab->elf.sgot && htab->elf.sgot->size > 0)
4843 bfd_vma val = (sdyn ?
4844 sdyn->output_section->vma + sdyn->output_offset :
4847 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
4851 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4852 SPARC_ELF_WORD_BYTES (htab);
4854 /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */
4855 htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info);
4857 /* Fill PLT entries for undefined weak symbols in PIE. */
4858 if (bfd_link_pie (info))
4859 bfd_hash_traverse (&info->hash->table,
4860 pie_finish_undefweak_symbol,
4866 /* Set the right machine number for a SPARC ELF file. */
4869 _bfd_sparc_elf_object_p (bfd *abfd)
4871 obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU];
4872 obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS];
4873 obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2];
4875 unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT;
4876 unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF
4877 | ELF_SPARC_HWCAP_VIS3
4878 | ELF_SPARC_HWCAP_HPC);
4879 unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES
4880 | ELF_SPARC_HWCAP_DES
4881 | ELF_SPARC_HWCAP_KASUMI
4882 | ELF_SPARC_HWCAP_CAMELLIA
4883 | ELF_SPARC_HWCAP_MD5
4884 | ELF_SPARC_HWCAP_SHA1
4885 | ELF_SPARC_HWCAP_SHA256
4886 | ELF_SPARC_HWCAP_SHA512
4887 | ELF_SPARC_HWCAP_MPMUL
4888 | ELF_SPARC_HWCAP_MONT
4889 | ELF_SPARC_HWCAP_CRC32C
4890 | ELF_SPARC_HWCAP_CBCOND
4891 | ELF_SPARC_HWCAP_PAUSE);
4892 unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU
4893 | ELF_SPARC_HWCAP_IMA);
4894 unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5
4895 | ELF_SPARC_HWCAP2_MWAIT
4896 | ELF_SPARC_HWCAP2_XMPMUL
4897 | ELF_SPARC_HWCAP2_XMONT);
4898 unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6
4899 | ELF_SPARC_HWCAP2_ONADDSUB
4900 | ELF_SPARC_HWCAP2_ONMUL
4901 | ELF_SPARC_HWCAP2_ONDIV
4902 | ELF_SPARC_HWCAP2_DICTUNP
4903 | ELF_SPARC_HWCAP2_FPCMPSHL
4904 | ELF_SPARC_HWCAP2_RLE
4905 | ELF_SPARC_HWCAP2_SHA3);
4907 if (ABI_64_P (abfd))
4909 unsigned long mach = bfd_mach_sparc_v9;
4911 if (hwcaps2->i & m8_hwcaps2_mask)
4912 mach = bfd_mach_sparc_v9m8;
4913 else if (hwcaps2->i & v9m_hwcaps2_mask)
4914 mach = bfd_mach_sparc_v9m;
4915 else if (hwcaps->i & v9v_hwcaps_mask)
4916 mach = bfd_mach_sparc_v9v;
4917 else if (hwcaps->i & v9e_hwcaps_mask)
4918 mach = bfd_mach_sparc_v9e;
4919 else if (hwcaps->i & v9d_hwcaps_mask)
4920 mach = bfd_mach_sparc_v9d;
4921 else if (hwcaps->i & v9c_hwcaps_mask)
4922 mach = bfd_mach_sparc_v9c;
4923 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4924 mach = bfd_mach_sparc_v9b;
4925 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4926 mach = bfd_mach_sparc_v9a;
4927 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4931 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4933 if (hwcaps2->i & m8_hwcaps2_mask)
4934 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4935 bfd_mach_sparc_v8plusm8);
4936 else if (hwcaps2->i & v9m_hwcaps2_mask)
4937 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4938 bfd_mach_sparc_v8plusm);
4939 else if (hwcaps->i & v9v_hwcaps_mask)
4940 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4941 bfd_mach_sparc_v8plusv);
4942 else if (hwcaps->i & v9e_hwcaps_mask)
4943 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4944 bfd_mach_sparc_v8pluse);
4945 else if (hwcaps->i & v9d_hwcaps_mask)
4946 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4947 bfd_mach_sparc_v8plusd);
4948 else if (hwcaps->i & v9c_hwcaps_mask)
4949 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4950 bfd_mach_sparc_v8plusc);
4951 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4952 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4953 bfd_mach_sparc_v8plusb);
4954 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4955 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4956 bfd_mach_sparc_v8plusa);
4957 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4958 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4959 bfd_mach_sparc_v8plus);
4963 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4964 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4965 bfd_mach_sparc_sparclite_le);
4967 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4971 /* Return address for Ith PLT stub in section PLT, for relocation REL
4972 or (bfd_vma) -1 if it should not be included. */
4975 _bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
4977 if (ABI_64_P (plt->owner))
4981 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
4982 if (i < PLT64_LARGE_THRESHOLD)
4983 return plt->vma + i * PLT64_ENTRY_SIZE;
4985 j = (i - PLT64_LARGE_THRESHOLD) % 160;
4987 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
4990 return rel->address;
4993 /* Merge backend specific data from an object file to the output
4994 object file when linking. */
4997 _bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
4999 bfd *obfd = info->output_bfd;
5000 obj_attribute *in_attr, *in_attrs;
5001 obj_attribute *out_attr, *out_attrs;
5003 if (!elf_known_obj_attributes_proc (obfd)[0].i)
5005 /* This is the first object. Copy the attributes. */
5006 _bfd_elf_copy_obj_attributes (ibfd, obfd);
5008 /* Use the Tag_null value to indicate the attributes have been
5010 elf_known_obj_attributes_proc (obfd)[0].i = 1;
5015 in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU];
5016 out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU];
5018 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS];
5019 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS];
5021 out_attr->i |= in_attr->i;
5024 in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2];
5025 out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2];
5027 out_attr->i |= in_attr->i;
5030 /* Merge Tag_compatibility attributes and any common GNU ones. */
5031 _bfd_elf_merge_object_attributes (ibfd, info);