1 /* SPARC-specific support for ELF
2 Copyright 2005, 2006, 2007, 2008, 2009, 2010 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"
35 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
36 #define MINUS_ONE (~ (bfd_vma) 0)
38 #define ABI_64_P(abfd) \
39 (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
41 /* The relocation "howto" table. */
43 /* Utility for performing the standard initial work of an instruction
45 *PRELOCATION will contain the relocated item.
46 *PINSN will contain the instruction from the input stream.
47 If the result is `bfd_reloc_other' the caller can continue with
48 performing the relocation. Otherwise it must stop and return the
49 value to its caller. */
51 static bfd_reloc_status_type
52 init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
53 PTR data, asection *input_section, bfd *output_bfd,
54 bfd_vma *prelocation, bfd_vma *pinsn)
57 reloc_howto_type *howto = reloc_entry->howto;
59 if (output_bfd != (bfd *) NULL
60 && (symbol->flags & BSF_SECTION_SYM) == 0
61 && (! howto->partial_inplace
62 || reloc_entry->addend == 0))
64 reloc_entry->address += input_section->output_offset;
68 /* This works because partial_inplace is FALSE. */
69 if (output_bfd != NULL)
70 return bfd_reloc_continue;
72 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
73 return bfd_reloc_outofrange;
75 relocation = (symbol->value
76 + symbol->section->output_section->vma
77 + symbol->section->output_offset);
78 relocation += reloc_entry->addend;
79 if (howto->pc_relative)
81 relocation -= (input_section->output_section->vma
82 + input_section->output_offset);
83 relocation -= reloc_entry->address;
86 *prelocation = relocation;
87 *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
88 return bfd_reloc_other;
91 /* For unsupported relocs. */
93 static bfd_reloc_status_type
94 sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
95 arelent *reloc_entry ATTRIBUTE_UNUSED,
96 asymbol *symbol ATTRIBUTE_UNUSED,
97 PTR data ATTRIBUTE_UNUSED,
98 asection *input_section ATTRIBUTE_UNUSED,
99 bfd *output_bfd ATTRIBUTE_UNUSED,
100 char **error_message ATTRIBUTE_UNUSED)
102 return bfd_reloc_notsupported;
105 /* Handle the WDISP16 reloc. */
107 static bfd_reloc_status_type
108 sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
109 PTR data, asection *input_section, bfd *output_bfd,
110 char **error_message ATTRIBUTE_UNUSED)
114 bfd_reloc_status_type status;
116 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
117 input_section, output_bfd, &relocation, &insn);
118 if (status != bfd_reloc_other)
121 insn &= ~ (bfd_vma) 0x303fff;
122 insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
123 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
125 if ((bfd_signed_vma) relocation < - 0x40000
126 || (bfd_signed_vma) relocation > 0x3ffff)
127 return bfd_reloc_overflow;
132 /* Handle the HIX22 reloc. */
134 static bfd_reloc_status_type
135 sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
136 PTR data, asection *input_section, bfd *output_bfd,
137 char **error_message ATTRIBUTE_UNUSED)
141 bfd_reloc_status_type status;
143 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
144 input_section, output_bfd, &relocation, &insn);
145 if (status != bfd_reloc_other)
148 relocation ^= MINUS_ONE;
149 insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
150 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
152 if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
153 return bfd_reloc_overflow;
158 /* Handle the LOX10 reloc. */
160 static bfd_reloc_status_type
161 sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
162 PTR data, asection *input_section, bfd *output_bfd,
163 char **error_message ATTRIBUTE_UNUSED)
167 bfd_reloc_status_type status;
169 status = init_insn_reloc (abfd, reloc_entry, symbol, data,
170 input_section, output_bfd, &relocation, &insn);
171 if (status != bfd_reloc_other)
174 insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
175 bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
180 static reloc_howto_type _bfd_sparc_elf_howto_table[] =
182 HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
183 HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
184 HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
185 HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
186 HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
187 HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
188 HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
189 HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
190 HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
191 HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
192 HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
193 HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
194 HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
195 HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
196 HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
197 HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
198 HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
199 HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
200 HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
201 HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
202 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),
203 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),
204 HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
205 HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
206 HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
207 HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
208 HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
209 HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
210 HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
211 HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
212 HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
213 HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
214 HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE),
215 HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE),
216 HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE),
217 HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE),
218 HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE),
219 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),
220 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),
221 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),
222 HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
223 HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
224 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),
225 HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
226 HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
227 HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
228 HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE),
229 HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE),
230 HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE),
231 HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE),
232 HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE),
233 HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE),
234 HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE),
235 HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE),
236 HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE),
237 HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
238 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),
239 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),
240 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),
241 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),
242 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),
243 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),
244 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),
245 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),
246 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),
247 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),
248 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),
249 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),
250 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),
251 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),
252 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),
253 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),
254 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),
255 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),
256 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),
257 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),
258 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),
259 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),
260 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),
261 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),
262 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),
263 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),
264 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),
265 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),
266 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),
268 static reloc_howto_type sparc_vtinherit_howto =
269 HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE);
270 static reloc_howto_type sparc_vtentry_howto =
271 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);
272 static reloc_howto_type sparc_rev32_howto =
273 HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE);
275 struct elf_reloc_map {
276 bfd_reloc_code_real_type bfd_reloc_val;
277 unsigned char elf_reloc_val;
280 static const struct elf_reloc_map sparc_reloc_map[] =
282 { BFD_RELOC_NONE, R_SPARC_NONE, },
283 { BFD_RELOC_16, R_SPARC_16, },
284 { BFD_RELOC_16_PCREL, R_SPARC_DISP16 },
285 { BFD_RELOC_8, R_SPARC_8 },
286 { BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
287 { BFD_RELOC_CTOR, R_SPARC_64 },
288 { BFD_RELOC_32, R_SPARC_32 },
289 { BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
290 { BFD_RELOC_HI22, R_SPARC_HI22 },
291 { BFD_RELOC_LO10, R_SPARC_LO10, },
292 { BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 },
293 { BFD_RELOC_64_PCREL, R_SPARC_DISP64 },
294 { BFD_RELOC_SPARC22, R_SPARC_22 },
295 { BFD_RELOC_SPARC13, R_SPARC_13 },
296 { BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 },
297 { BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 },
298 { BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 },
299 { BFD_RELOC_SPARC_PC10, R_SPARC_PC10 },
300 { BFD_RELOC_SPARC_PC22, R_SPARC_PC22 },
301 { BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 },
302 { BFD_RELOC_SPARC_COPY, R_SPARC_COPY },
303 { BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT },
304 { BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
305 { BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
306 { BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
307 { BFD_RELOC_SPARC_UA16, R_SPARC_UA16 },
308 { BFD_RELOC_SPARC_UA32, R_SPARC_UA32 },
309 { BFD_RELOC_SPARC_UA64, R_SPARC_UA64 },
310 { BFD_RELOC_SPARC_10, R_SPARC_10 },
311 { BFD_RELOC_SPARC_11, R_SPARC_11 },
312 { BFD_RELOC_SPARC_64, R_SPARC_64 },
313 { BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10 },
314 { BFD_RELOC_SPARC_HH22, R_SPARC_HH22 },
315 { BFD_RELOC_SPARC_HM10, R_SPARC_HM10 },
316 { BFD_RELOC_SPARC_LM22, R_SPARC_LM22 },
317 { BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22 },
318 { BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10 },
319 { BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22 },
320 { BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16 },
321 { BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19 },
322 { BFD_RELOC_SPARC_7, R_SPARC_7 },
323 { BFD_RELOC_SPARC_5, R_SPARC_5 },
324 { BFD_RELOC_SPARC_6, R_SPARC_6 },
325 { BFD_RELOC_SPARC_DISP64, R_SPARC_DISP64 },
326 { BFD_RELOC_SPARC_TLS_GD_HI22, R_SPARC_TLS_GD_HI22 },
327 { BFD_RELOC_SPARC_TLS_GD_LO10, R_SPARC_TLS_GD_LO10 },
328 { BFD_RELOC_SPARC_TLS_GD_ADD, R_SPARC_TLS_GD_ADD },
329 { BFD_RELOC_SPARC_TLS_GD_CALL, R_SPARC_TLS_GD_CALL },
330 { BFD_RELOC_SPARC_TLS_LDM_HI22, R_SPARC_TLS_LDM_HI22 },
331 { BFD_RELOC_SPARC_TLS_LDM_LO10, R_SPARC_TLS_LDM_LO10 },
332 { BFD_RELOC_SPARC_TLS_LDM_ADD, R_SPARC_TLS_LDM_ADD },
333 { BFD_RELOC_SPARC_TLS_LDM_CALL, R_SPARC_TLS_LDM_CALL },
334 { BFD_RELOC_SPARC_TLS_LDO_HIX22, R_SPARC_TLS_LDO_HIX22 },
335 { BFD_RELOC_SPARC_TLS_LDO_LOX10, R_SPARC_TLS_LDO_LOX10 },
336 { BFD_RELOC_SPARC_TLS_LDO_ADD, R_SPARC_TLS_LDO_ADD },
337 { BFD_RELOC_SPARC_TLS_IE_HI22, R_SPARC_TLS_IE_HI22 },
338 { BFD_RELOC_SPARC_TLS_IE_LO10, R_SPARC_TLS_IE_LO10 },
339 { BFD_RELOC_SPARC_TLS_IE_LD, R_SPARC_TLS_IE_LD },
340 { BFD_RELOC_SPARC_TLS_IE_LDX, R_SPARC_TLS_IE_LDX },
341 { BFD_RELOC_SPARC_TLS_IE_ADD, R_SPARC_TLS_IE_ADD },
342 { BFD_RELOC_SPARC_TLS_LE_HIX22, R_SPARC_TLS_LE_HIX22 },
343 { BFD_RELOC_SPARC_TLS_LE_LOX10, R_SPARC_TLS_LE_LOX10 },
344 { BFD_RELOC_SPARC_TLS_DTPMOD32, R_SPARC_TLS_DTPMOD32 },
345 { BFD_RELOC_SPARC_TLS_DTPMOD64, R_SPARC_TLS_DTPMOD64 },
346 { BFD_RELOC_SPARC_TLS_DTPOFF32, R_SPARC_TLS_DTPOFF32 },
347 { BFD_RELOC_SPARC_TLS_DTPOFF64, R_SPARC_TLS_DTPOFF64 },
348 { BFD_RELOC_SPARC_TLS_TPOFF32, R_SPARC_TLS_TPOFF32 },
349 { BFD_RELOC_SPARC_TLS_TPOFF64, R_SPARC_TLS_TPOFF64 },
350 { BFD_RELOC_SPARC_PLT32, R_SPARC_PLT32 },
351 { BFD_RELOC_SPARC_PLT64, R_SPARC_PLT64 },
352 { BFD_RELOC_SPARC_HIX22, R_SPARC_HIX22 },
353 { BFD_RELOC_SPARC_LOX10, R_SPARC_LOX10 },
354 { BFD_RELOC_SPARC_H44, R_SPARC_H44 },
355 { BFD_RELOC_SPARC_M44, R_SPARC_M44 },
356 { BFD_RELOC_SPARC_L44, R_SPARC_L44 },
357 { BFD_RELOC_SPARC_GOTDATA_HIX22, R_SPARC_GOTDATA_HIX22 },
358 { BFD_RELOC_SPARC_GOTDATA_LOX10, R_SPARC_GOTDATA_LOX10 },
359 { BFD_RELOC_SPARC_GOTDATA_OP_HIX22, R_SPARC_GOTDATA_OP_HIX22 },
360 { BFD_RELOC_SPARC_GOTDATA_OP_LOX10, R_SPARC_GOTDATA_OP_LOX10 },
361 { BFD_RELOC_SPARC_GOTDATA_OP, R_SPARC_GOTDATA_OP },
362 { BFD_RELOC_SPARC_REGISTER, R_SPARC_REGISTER },
363 { BFD_RELOC_VTABLE_INHERIT, R_SPARC_GNU_VTINHERIT },
364 { BFD_RELOC_VTABLE_ENTRY, R_SPARC_GNU_VTENTRY },
365 { BFD_RELOC_SPARC_REV32, R_SPARC_REV32 },
369 _bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
370 bfd_reloc_code_real_type code)
376 case BFD_RELOC_VTABLE_INHERIT:
377 return &sparc_vtinherit_howto;
379 case BFD_RELOC_VTABLE_ENTRY:
380 return &sparc_vtentry_howto;
382 case BFD_RELOC_SPARC_REV32:
383 return &sparc_rev32_howto;
387 i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map);
390 if (sparc_reloc_map[i].bfd_reloc_val == code)
391 return (_bfd_sparc_elf_howto_table
392 + (int) sparc_reloc_map[i].elf_reloc_val);
395 bfd_set_error (bfd_error_bad_value);
400 _bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
406 i < (sizeof (_bfd_sparc_elf_howto_table)
407 / sizeof (_bfd_sparc_elf_howto_table[0]));
409 if (_bfd_sparc_elf_howto_table[i].name != NULL
410 && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
411 return &_bfd_sparc_elf_howto_table[i];
413 if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
414 return &sparc_vtinherit_howto;
415 if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
416 return &sparc_vtentry_howto;
417 if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
418 return &sparc_rev32_howto;
424 _bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type)
428 case R_SPARC_GNU_VTINHERIT:
429 return &sparc_vtinherit_howto;
431 case R_SPARC_GNU_VTENTRY:
432 return &sparc_vtentry_howto;
435 return &sparc_rev32_howto;
438 if (r_type >= (unsigned int) R_SPARC_max_std)
440 (*_bfd_error_handler) (_("invalid relocation type %d"),
442 r_type = R_SPARC_NONE;
444 return &_bfd_sparc_elf_howto_table[r_type];
448 /* Both 32-bit and 64-bit sparc encode this in an identical manner,
449 so just take advantage of that. */
450 #define SPARC_ELF_R_TYPE(r_info) \
454 _bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
455 Elf_Internal_Rela *dst)
457 unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
459 cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type);
463 /* The nop opcode we use. */
464 #define SPARC_NOP 0x01000000
466 #define SPARC_INSN_BYTES 4
468 /* The SPARC linker needs to keep track of the number of relocs that it
469 decides to copy as dynamic relocs in check_relocs for each symbol.
470 This is so that it can later discard them if they are found to be
471 unnecessary. We store the information in a field extending the
472 regular ELF linker hash table. */
474 struct _bfd_sparc_elf_dyn_relocs
476 struct _bfd_sparc_elf_dyn_relocs *next;
478 /* The input section of the reloc. */
481 /* Total number of relocs copied for the input section. */
484 /* Number of pc-relative relocs copied for the input section. */
485 bfd_size_type pc_count;
488 /* SPARC ELF linker hash entry. */
490 struct _bfd_sparc_elf_link_hash_entry
492 struct elf_link_hash_entry elf;
494 /* Track dynamic relocs copied for this symbol. */
495 struct _bfd_sparc_elf_dyn_relocs *dyn_relocs;
497 #define GOT_UNKNOWN 0
501 unsigned char tls_type;
504 #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
506 struct _bfd_sparc_elf_obj_tdata
508 struct elf_obj_tdata root;
510 /* tls_type for each local got entry. */
511 char *local_got_tls_type;
513 /* TRUE if TLS GD relocs has been seen for this object. */
514 bfd_boolean has_tlsgd;
517 #define _bfd_sparc_elf_tdata(abfd) \
518 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
520 #define _bfd_sparc_elf_local_got_tls_type(abfd) \
521 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
523 #define is_sparc_elf(bfd) \
524 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
525 && elf_tdata (bfd) != NULL \
526 && elf_object_id (bfd) == SPARC_ELF_DATA)
529 _bfd_sparc_elf_mkobject (bfd *abfd)
531 return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
536 sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr)
538 bfd_put_32 (abfd, val, ptr);
542 sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr)
544 bfd_put_64 (abfd, val, ptr);
548 sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
550 const struct elf_backend_data *bed;
553 bed = get_elf_backend_data (abfd);
554 loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
555 bed->s->swap_reloca_out (abfd, rel, loc);
559 sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
560 bfd_vma rel_index ATTRIBUTE_UNUSED,
561 bfd_vma type ATTRIBUTE_UNUSED)
563 return ELF64_R_INFO (rel_index,
565 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
570 sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
571 bfd_vma rel_index, bfd_vma type)
573 return ELF32_R_INFO (rel_index, type);
577 sparc_elf_r_symndx_64 (bfd_vma r_info)
579 bfd_vma r_symndx = ELF32_R_SYM (r_info);
580 return (r_symndx >> 24);
584 sparc_elf_r_symndx_32 (bfd_vma r_info)
586 return ELF32_R_SYM (r_info);
591 #define PLT32_ENTRY_SIZE 12
592 #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
594 /* The first four entries in a 32-bit procedure linkage table are reserved,
595 and the initial contents are unimportant (we zero them out).
596 Subsequent entries look like this. See the SVR4 ABI SPARC
597 supplement to see how this works. */
599 /* sethi %hi(.-.plt0),%g1. We fill in the address later. */
600 #define PLT32_ENTRY_WORD0 0x03000000
601 /* b,a .plt0. We fill in the offset later. */
602 #define PLT32_ENTRY_WORD1 0x30800000
604 #define PLT32_ENTRY_WORD2 SPARC_NOP
607 sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
608 bfd_vma max ATTRIBUTE_UNUSED,
611 bfd_put_32 (output_bfd,
612 PLT32_ENTRY_WORD0 + offset,
613 splt->contents + offset);
614 bfd_put_32 (output_bfd,
616 + (((- (offset + 4)) >> 2) & 0x3fffff)),
617 splt->contents + offset + 4);
618 bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
619 splt->contents + offset + 8);
623 return offset / PLT32_ENTRY_SIZE - 4;
626 /* Both the headers and the entries are icache aligned. */
627 #define PLT64_ENTRY_SIZE 32
628 #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
629 #define PLT64_LARGE_THRESHOLD 32768
632 sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
633 bfd_vma max, bfd_vma *r_offset)
635 unsigned char *entry = splt->contents + offset;
636 const unsigned int nop = SPARC_NOP;
639 if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
641 unsigned int sethi, ba;
645 plt_index = (offset / PLT64_ENTRY_SIZE);
647 sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE);
649 | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
651 bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
652 bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
653 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
654 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
655 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
656 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
657 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
658 bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
664 int block, last_block, ofs, last_ofs, chunks_this_block;
665 const int insn_chunk_size = (6 * 4);
666 const int ptr_chunk_size = (1 * 8);
667 const int entries_per_block = 160;
668 const int block_size = entries_per_block * (insn_chunk_size
671 /* Entries 32768 and higher are grouped into blocks of 160.
672 The blocks are further subdivided into 160 sequences of
673 6 instructions and 160 pointers. If a block does not require
674 the full 160 entries, let's say it requires N, then there
675 will be N sequences of 6 instructions and N pointers. */
677 offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
678 max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
680 block = offset / block_size;
681 last_block = max / block_size;
682 if (block != last_block)
684 chunks_this_block = 160;
688 last_ofs = max % block_size;
689 chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
692 ofs = offset % block_size;
694 plt_index = (PLT64_LARGE_THRESHOLD +
696 (ofs / insn_chunk_size));
699 + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
700 + (block * block_size)
701 + (chunks_this_block * insn_chunk_size)
702 + (ofs / insn_chunk_size) * ptr_chunk_size;
704 *r_offset = (bfd_vma) (ptr - splt->contents);
706 ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
714 bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
715 bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
716 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
717 bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
718 bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
719 bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
721 bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
724 return plt_index - 4;
727 /* The format of the first PLT entry in a VxWorks executable. */
728 static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
730 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
731 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
732 0xc4008000, /* ld [ %g2 ], %g2 */
733 0x81c08000, /* jmp %g2 */
737 /* The format of subsequent PLT entries. */
738 static const bfd_vma sparc_vxworks_exec_plt_entry[] =
740 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
741 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
742 0xc2004000, /* ld [ %g1 ], %g1 */
743 0x81c04000, /* jmp %g1 */
744 0x01000000, /* nop */
745 0x03000000, /* sethi %hi(f@pltindex), %g1 */
746 0x10800000, /* b _PLT_resolve */
747 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
750 /* The format of the first PLT entry in a VxWorks shared object. */
751 static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
753 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
754 0x81c08000, /* jmp %g2 */
758 /* The format of subsequent PLT entries. */
759 static const bfd_vma sparc_vxworks_shared_plt_entry[] =
761 0x03000000, /* sethi %hi(f@got), %g1 */
762 0x82106000, /* or %g1, %lo(f@got), %g1 */
763 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
764 0x81c04000, /* jmp %g1 */
765 0x01000000, /* nop */
766 0x03000000, /* sethi %hi(f@pltindex), %g1 */
767 0x10800000, /* b _PLT_resolve */
768 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
771 #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
772 htab->put_word(bfd, val, ptr)
774 #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
775 htab->r_info(in_rel, index, type)
777 #define SPARC_ELF_R_SYMNDX(htab, r_info) \
778 htab->r_symndx(r_info)
780 #define SPARC_ELF_WORD_BYTES(htab) \
783 #define SPARC_ELF_RELA_BYTES(htab) \
786 #define SPARC_ELF_DTPOFF_RELOC(htab) \
789 #define SPARC_ELF_DTPMOD_RELOC(htab) \
792 #define SPARC_ELF_TPOFF_RELOC(htab) \
795 #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
796 htab->build_plt_entry (obfd, splt, off, max, r_off)
798 /* Create an entry in an SPARC ELF linker hash table. */
800 static struct bfd_hash_entry *
801 link_hash_newfunc (struct bfd_hash_entry *entry,
802 struct bfd_hash_table *table, const char *string)
804 /* Allocate the structure if it has not already been allocated by a
808 entry = bfd_hash_allocate (table,
809 sizeof (struct _bfd_sparc_elf_link_hash_entry));
814 /* Call the allocation method of the superclass. */
815 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
818 struct _bfd_sparc_elf_link_hash_entry *eh;
820 eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
821 eh->dyn_relocs = NULL;
822 eh->tls_type = GOT_UNKNOWN;
828 /* The name of the dynamic interpreter. This is put in the .interp
831 #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
832 #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
834 /* Create a SPARC ELF linker hash table. */
836 struct bfd_link_hash_table *
837 _bfd_sparc_elf_link_hash_table_create (bfd *abfd)
839 struct _bfd_sparc_elf_link_hash_table *ret;
840 bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
842 ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
848 ret->put_word = sparc_put_word_64;
849 ret->r_info = sparc_elf_r_info_64;
850 ret->r_symndx = sparc_elf_r_symndx_64;
851 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
852 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
853 ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
854 ret->word_align_power = 3;
855 ret->align_power_max = 4;
856 ret->bytes_per_word = 8;
857 ret->bytes_per_rela = sizeof (Elf64_External_Rela);
858 ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
859 ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
863 ret->put_word = sparc_put_word_32;
864 ret->r_info = sparc_elf_r_info_32;
865 ret->r_symndx = sparc_elf_r_symndx_32;
866 ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
867 ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
868 ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
869 ret->word_align_power = 2;
870 ret->align_power_max = 3;
871 ret->bytes_per_word = 4;
872 ret->bytes_per_rela = sizeof (Elf32_External_Rela);
873 ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
874 ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
877 if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
878 sizeof (struct _bfd_sparc_elf_link_hash_entry),
885 return &ret->elf.root;
888 /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
889 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
893 _bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
894 struct bfd_link_info *info)
896 struct _bfd_sparc_elf_link_hash_table *htab;
898 htab = _bfd_sparc_elf_hash_table (info);
899 BFD_ASSERT (htab != NULL);
901 if (!_bfd_elf_create_dynamic_sections (dynobj, info))
904 htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
906 htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
908 if (htab->is_vxworks)
910 if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
914 htab->plt_header_size
915 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
917 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
921 htab->plt_header_size
922 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
924 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
929 if (ABI_64_P (dynobj))
931 htab->build_plt_entry = sparc64_plt_entry_build;
932 htab->plt_header_size = PLT64_HEADER_SIZE;
933 htab->plt_entry_size = PLT64_ENTRY_SIZE;
937 htab->build_plt_entry = sparc32_plt_entry_build;
938 htab->plt_header_size = PLT32_HEADER_SIZE;
939 htab->plt_entry_size = PLT32_ENTRY_SIZE;
943 if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss
944 || (!info->shared && !htab->srelbss))
950 /* Copy the extra info we tack onto an elf_link_hash_entry. */
953 _bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
954 struct elf_link_hash_entry *dir,
955 struct elf_link_hash_entry *ind)
957 struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
959 edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
960 eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
962 if (eind->dyn_relocs != NULL)
964 if (edir->dyn_relocs != NULL)
966 struct _bfd_sparc_elf_dyn_relocs **pp;
967 struct _bfd_sparc_elf_dyn_relocs *p;
969 /* Add reloc counts against the indirect sym to the direct sym
970 list. Merge any entries against the same section. */
971 for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
973 struct _bfd_sparc_elf_dyn_relocs *q;
975 for (q = edir->dyn_relocs; q != NULL; q = q->next)
976 if (q->sec == p->sec)
978 q->pc_count += p->pc_count;
979 q->count += p->count;
986 *pp = edir->dyn_relocs;
989 edir->dyn_relocs = eind->dyn_relocs;
990 eind->dyn_relocs = NULL;
993 if (ind->root.type == bfd_link_hash_indirect
994 && dir->got.refcount <= 0)
996 edir->tls_type = eind->tls_type;
997 eind->tls_type = GOT_UNKNOWN;
999 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1003 sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
1004 int r_type, int is_local)
1006 if (! ABI_64_P (abfd)
1007 && r_type == R_SPARC_TLS_GD_HI22
1008 && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
1009 r_type = R_SPARC_REV32;
1016 case R_SPARC_TLS_GD_HI22:
1018 return R_SPARC_TLS_LE_HIX22;
1019 return R_SPARC_TLS_IE_HI22;
1020 case R_SPARC_TLS_GD_LO10:
1022 return R_SPARC_TLS_LE_LOX10;
1023 return R_SPARC_TLS_IE_LO10;
1024 case R_SPARC_TLS_IE_HI22:
1026 return R_SPARC_TLS_LE_HIX22;
1028 case R_SPARC_TLS_IE_LO10:
1030 return R_SPARC_TLS_LE_LOX10;
1032 case R_SPARC_TLS_LDM_HI22:
1033 return R_SPARC_TLS_LE_HIX22;
1034 case R_SPARC_TLS_LDM_LO10:
1035 return R_SPARC_TLS_LE_LOX10;
1041 /* Look through the relocs for a section during the first phase, and
1042 allocate space in the global offset table or procedure linkage
1046 _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
1047 asection *sec, const Elf_Internal_Rela *relocs)
1049 struct _bfd_sparc_elf_link_hash_table *htab;
1050 Elf_Internal_Shdr *symtab_hdr;
1051 struct elf_link_hash_entry **sym_hashes;
1052 bfd_vma *local_got_offsets;
1053 const Elf_Internal_Rela *rel;
1054 const Elf_Internal_Rela *rel_end;
1057 bfd_boolean checked_tlsgd = FALSE;
1059 if (info->relocatable)
1062 htab = _bfd_sparc_elf_hash_table (info);
1063 BFD_ASSERT (htab != NULL);
1064 symtab_hdr = &elf_symtab_hdr (abfd);
1065 sym_hashes = elf_sym_hashes (abfd);
1066 local_got_offsets = elf_local_got_offsets (abfd);
1070 if (ABI_64_P (abfd))
1071 num_relocs = NUM_SHDR_ENTRIES (& elf_section_data (sec)->rel_hdr);
1073 num_relocs = sec->reloc_count;
1075 BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
1077 rel_end = relocs + num_relocs;
1078 for (rel = relocs; rel < rel_end; rel++)
1080 unsigned int r_type;
1081 unsigned long r_symndx;
1082 struct elf_link_hash_entry *h;
1084 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1085 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1087 if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
1089 (*_bfd_error_handler) (_("%B: bad symbol index: %d"),
1094 if (r_symndx < symtab_hdr->sh_info)
1098 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1099 while (h->root.type == bfd_link_hash_indirect
1100 || h->root.type == bfd_link_hash_warning)
1101 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1104 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1105 with R_SPARC_TLS_GD_HI22. */
1106 if (! ABI_64_P (abfd) && ! checked_tlsgd)
1109 case R_SPARC_TLS_GD_HI22:
1111 const Elf_Internal_Rela *relt;
1113 for (relt = rel + 1; relt < rel_end; relt++)
1114 if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
1115 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
1116 || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
1118 checked_tlsgd = TRUE;
1119 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
1122 case R_SPARC_TLS_GD_LO10:
1123 case R_SPARC_TLS_GD_ADD:
1124 case R_SPARC_TLS_GD_CALL:
1125 checked_tlsgd = TRUE;
1126 _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
1130 r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
1133 case R_SPARC_TLS_LDM_HI22:
1134 case R_SPARC_TLS_LDM_LO10:
1135 htab->tls_ldm_got.refcount += 1;
1138 case R_SPARC_TLS_LE_HIX22:
1139 case R_SPARC_TLS_LE_LOX10:
1144 case R_SPARC_TLS_IE_HI22:
1145 case R_SPARC_TLS_IE_LO10:
1147 info->flags |= DF_STATIC_TLS;
1153 case R_SPARC_GOTDATA_HIX22:
1154 case R_SPARC_GOTDATA_LOX10:
1155 case R_SPARC_GOTDATA_OP_HIX22:
1156 case R_SPARC_GOTDATA_OP_LOX10:
1157 case R_SPARC_TLS_GD_HI22:
1158 case R_SPARC_TLS_GD_LO10:
1159 /* This symbol requires a global offset table entry. */
1161 int tls_type, old_tls_type;
1169 case R_SPARC_GOTDATA_HIX22:
1170 case R_SPARC_GOTDATA_LOX10:
1171 case R_SPARC_GOTDATA_OP_HIX22:
1172 case R_SPARC_GOTDATA_OP_LOX10:
1173 tls_type = GOT_NORMAL;
1175 case R_SPARC_TLS_GD_HI22:
1176 case R_SPARC_TLS_GD_LO10:
1177 tls_type = GOT_TLS_GD;
1179 case R_SPARC_TLS_IE_HI22:
1180 case R_SPARC_TLS_IE_LO10:
1181 tls_type = GOT_TLS_IE;
1187 h->got.refcount += 1;
1188 old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1192 bfd_signed_vma *local_got_refcounts;
1194 /* This is a global offset table entry for a local symbol. */
1195 local_got_refcounts = elf_local_got_refcounts (abfd);
1196 if (local_got_refcounts == NULL)
1200 size = symtab_hdr->sh_info;
1201 size *= (sizeof (bfd_signed_vma) + sizeof(char));
1202 local_got_refcounts = ((bfd_signed_vma *)
1203 bfd_zalloc (abfd, size));
1204 if (local_got_refcounts == NULL)
1206 elf_local_got_refcounts (abfd) = local_got_refcounts;
1207 _bfd_sparc_elf_local_got_tls_type (abfd)
1208 = (char *) (local_got_refcounts + symtab_hdr->sh_info);
1210 local_got_refcounts[r_symndx] += 1;
1211 old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
1214 /* If a TLS symbol is accessed using IE at least once,
1215 there is no point to use dynamic model for it. */
1216 if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
1217 && (old_tls_type != GOT_TLS_GD
1218 || tls_type != GOT_TLS_IE))
1220 if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
1221 tls_type = old_tls_type;
1224 (*_bfd_error_handler)
1225 (_("%B: `%s' accessed both as normal and thread local symbol"),
1226 abfd, h ? h->root.root.string : "<local>");
1231 if (old_tls_type != tls_type)
1234 _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
1236 _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1240 if (htab->elf.sgot == NULL)
1242 if (htab->elf.dynobj == NULL)
1243 htab->elf.dynobj = abfd;
1244 if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
1249 case R_SPARC_TLS_GD_CALL:
1250 case R_SPARC_TLS_LDM_CALL:
1253 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1255 struct bfd_link_hash_entry *bh = NULL;
1256 if (! _bfd_generic_link_add_one_symbol (info, abfd,
1257 "__tls_get_addr", 0,
1258 bfd_und_section_ptr, 0,
1262 h = (struct elf_link_hash_entry *) bh;
1269 case R_SPARC_WPLT30:
1270 case R_SPARC_HIPLT22:
1271 case R_SPARC_LOPLT10:
1272 case R_SPARC_PCPLT32:
1273 case R_SPARC_PCPLT22:
1274 case R_SPARC_PCPLT10:
1276 /* This symbol requires a procedure linkage table entry. We
1277 actually build the entry in adjust_dynamic_symbol,
1278 because this might be a case of linking PIC code without
1279 linking in any dynamic objects, in which case we don't
1280 need to generate a procedure linkage table after all. */
1284 if (! ABI_64_P (abfd))
1286 /* The Solaris native assembler will generate a WPLT30
1287 reloc for a local symbol if you assemble a call from
1288 one section to another when using -K pic. We treat
1290 if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
1294 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1295 else if (r_type == R_SPARC_WPLT30)
1298 /* It does not make sense to have a procedure linkage
1299 table entry for a local symbol. */
1300 bfd_set_error (bfd_error_bad_value);
1309 this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
1310 if (this_r_type == R_SPARC_PLT32
1311 || this_r_type == R_SPARC_PLT64)
1314 h->plt.refcount += 1;
1319 case R_SPARC_PC_HH22:
1320 case R_SPARC_PC_HM10:
1321 case R_SPARC_PC_LM22:
1326 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1331 case R_SPARC_DISP16:
1332 case R_SPARC_DISP32:
1333 case R_SPARC_DISP64:
1334 case R_SPARC_WDISP30:
1335 case R_SPARC_WDISP22:
1336 case R_SPARC_WDISP19:
1337 case R_SPARC_WDISP16:
1367 if (h != NULL && !info->shared)
1369 /* We may need a .plt entry if the function this reloc
1370 refers to is in a shared lib. */
1371 h->plt.refcount += 1;
1374 /* If we are creating a shared library, and this is a reloc
1375 against a global symbol, or a non PC relative reloc
1376 against a local symbol, then we need to copy the reloc
1377 into the shared library. However, if we are linking with
1378 -Bsymbolic, we do not need to copy a reloc against a
1379 global symbol which is defined in an object we are
1380 including in the link (i.e., DEF_REGULAR is set). At
1381 this point we have not seen all the input files, so it is
1382 possible that DEF_REGULAR is not set now but will be set
1383 later (it is never cleared). In case of a weak definition,
1384 DEF_REGULAR may be cleared later by a strong definition in
1385 a shared library. We account for that possibility below by
1386 storing information in the relocs_copied field of the hash
1387 table entry. A similar situation occurs when creating
1388 shared libraries and symbol visibility changes render the
1391 If on the other hand, we are creating an executable, we
1392 may need to keep relocations for symbols satisfied by a
1393 dynamic library if we manage to avoid copy relocs for the
1396 && (sec->flags & SEC_ALLOC) != 0
1397 && (! _bfd_sparc_elf_howto_table[r_type].pc_relative
1399 && (! SYMBOLIC_BIND (info, h)
1400 || h->root.type == bfd_link_hash_defweak
1401 || !h->def_regular))))
1403 && (sec->flags & SEC_ALLOC) != 0
1405 && (h->root.type == bfd_link_hash_defweak
1406 || !h->def_regular)))
1408 struct _bfd_sparc_elf_dyn_relocs *p;
1409 struct _bfd_sparc_elf_dyn_relocs **head;
1411 /* When creating a shared object, we must copy these
1412 relocs into the output file. We create a reloc
1413 section in dynobj and make room for the reloc. */
1416 if (htab->elf.dynobj == NULL)
1417 htab->elf.dynobj = abfd;
1419 sreloc = _bfd_elf_make_dynamic_reloc_section
1420 (sec, htab->elf.dynobj, htab->word_align_power,
1421 abfd, /*rela?*/ TRUE);
1427 /* If this is a global symbol, we count the number of
1428 relocations we need for this symbol. */
1430 head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
1433 /* Track dynamic relocs needed for local syms too.
1434 We really need local syms available to do this
1438 Elf_Internal_Sym *isym;
1440 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1445 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
1449 vpp = &elf_section_data (s)->local_dynrel;
1450 head = (struct _bfd_sparc_elf_dyn_relocs **) vpp;
1454 if (p == NULL || p->sec != sec)
1456 bfd_size_type amt = sizeof *p;
1457 p = ((struct _bfd_sparc_elf_dyn_relocs *)
1458 bfd_alloc (htab->elf.dynobj, amt));
1469 if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
1475 case R_SPARC_GNU_VTINHERIT:
1476 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
1480 case R_SPARC_GNU_VTENTRY:
1481 BFD_ASSERT (h != NULL);
1483 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
1487 case R_SPARC_REGISTER:
1488 /* Nothing to do. */
1500 _bfd_sparc_elf_gc_mark_hook (asection *sec,
1501 struct bfd_link_info *info,
1502 Elf_Internal_Rela *rel,
1503 struct elf_link_hash_entry *h,
1504 Elf_Internal_Sym *sym)
1507 switch (SPARC_ELF_R_TYPE (rel->r_info))
1509 case R_SPARC_GNU_VTINHERIT:
1510 case R_SPARC_GNU_VTENTRY:
1514 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
1517 /* Update the got entry reference counts for the section being removed. */
1519 _bfd_sparc_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
1520 asection *sec, const Elf_Internal_Rela *relocs)
1522 struct _bfd_sparc_elf_link_hash_table *htab;
1523 Elf_Internal_Shdr *symtab_hdr;
1524 struct elf_link_hash_entry **sym_hashes;
1525 bfd_signed_vma *local_got_refcounts;
1526 const Elf_Internal_Rela *rel, *relend;
1528 if (info->relocatable)
1531 BFD_ASSERT (is_sparc_elf (abfd) || sec->reloc_count == 0);
1533 elf_section_data (sec)->local_dynrel = NULL;
1535 htab = _bfd_sparc_elf_hash_table (info);
1536 BFD_ASSERT (htab != NULL);
1537 symtab_hdr = &elf_symtab_hdr (abfd);
1538 sym_hashes = elf_sym_hashes (abfd);
1539 local_got_refcounts = elf_local_got_refcounts (abfd);
1541 relend = relocs + sec->reloc_count;
1542 for (rel = relocs; rel < relend; rel++)
1544 unsigned long r_symndx;
1545 unsigned int r_type;
1546 struct elf_link_hash_entry *h = NULL;
1548 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
1549 if (r_symndx >= symtab_hdr->sh_info)
1551 struct _bfd_sparc_elf_link_hash_entry *eh;
1552 struct _bfd_sparc_elf_dyn_relocs **pp;
1553 struct _bfd_sparc_elf_dyn_relocs *p;
1555 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1556 while (h->root.type == bfd_link_hash_indirect
1557 || h->root.type == bfd_link_hash_warning)
1558 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1559 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1560 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
1563 /* Everything must go for SEC. */
1569 r_type = SPARC_ELF_R_TYPE (rel->r_info);
1570 r_type = sparc_elf_tls_transition (info, abfd, r_type, h != NULL);
1573 case R_SPARC_TLS_LDM_HI22:
1574 case R_SPARC_TLS_LDM_LO10:
1575 if (_bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount > 0)
1576 _bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount -= 1;
1579 case R_SPARC_TLS_GD_HI22:
1580 case R_SPARC_TLS_GD_LO10:
1581 case R_SPARC_TLS_IE_HI22:
1582 case R_SPARC_TLS_IE_LO10:
1586 case R_SPARC_GOTDATA_HIX22:
1587 case R_SPARC_GOTDATA_LOX10:
1588 case R_SPARC_GOTDATA_OP_HIX22:
1589 case R_SPARC_GOTDATA_OP_LOX10:
1592 if (h->got.refcount > 0)
1597 if (local_got_refcounts[r_symndx] > 0)
1598 local_got_refcounts[r_symndx]--;
1604 case R_SPARC_PC_HH22:
1605 case R_SPARC_PC_HM10:
1606 case R_SPARC_PC_LM22:
1608 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1613 case R_SPARC_DISP16:
1614 case R_SPARC_DISP32:
1615 case R_SPARC_DISP64:
1616 case R_SPARC_WDISP30:
1617 case R_SPARC_WDISP22:
1618 case R_SPARC_WDISP19:
1619 case R_SPARC_WDISP16:
1650 case R_SPARC_WPLT30:
1653 if (h->plt.refcount > 0)
1666 /* Adjust a symbol defined by a dynamic object and referenced by a
1667 regular object. The current definition is in some section of the
1668 dynamic object, but we're not including those sections. We have to
1669 change the definition to something the rest of the link can
1673 _bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1674 struct elf_link_hash_entry *h)
1676 struct _bfd_sparc_elf_link_hash_table *htab;
1677 struct _bfd_sparc_elf_link_hash_entry * eh;
1678 struct _bfd_sparc_elf_dyn_relocs *p;
1681 htab = _bfd_sparc_elf_hash_table (info);
1682 BFD_ASSERT (htab != NULL);
1684 /* Make sure we know what is going on here. */
1685 BFD_ASSERT (htab->elf.dynobj != NULL
1687 || h->u.weakdef != NULL
1690 && !h->def_regular)));
1692 /* If this is a function, put it in the procedure linkage table. We
1693 will fill in the contents of the procedure linkage table later
1694 (although we could actually do it here). The STT_NOTYPE
1695 condition is a hack specifically for the Oracle libraries
1696 delivered for Solaris; for some inexplicable reason, they define
1697 some of their functions as STT_NOTYPE when they really should be
1699 if (h->type == STT_FUNC
1701 || (h->type == STT_NOTYPE
1702 && (h->root.type == bfd_link_hash_defined
1703 || h->root.type == bfd_link_hash_defweak)
1704 && (h->root.u.def.section->flags & SEC_CODE) != 0))
1706 if (h->plt.refcount <= 0
1707 || SYMBOL_CALLS_LOCAL (info, h)
1708 || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
1709 && h->root.type == bfd_link_hash_undefweak))
1711 /* This case can occur if we saw a WPLT30 reloc in an input
1712 file, but the symbol was never referred to by a dynamic
1713 object, or if all references were garbage collected. In
1714 such a case, we don't actually need to build a procedure
1715 linkage table, and we can just do a WDISP30 reloc instead. */
1716 h->plt.offset = (bfd_vma) -1;
1723 h->plt.offset = (bfd_vma) -1;
1725 /* If this is a weak symbol, and there is a real definition, the
1726 processor independent code will have arranged for us to see the
1727 real definition first, and we can just use the same value. */
1728 if (h->u.weakdef != NULL)
1730 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1731 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1732 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1733 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1737 /* This is a reference to a symbol defined by a dynamic object which
1738 is not a function. */
1740 /* If we are creating a shared library, we must presume that the
1741 only references to the symbol are via the global offset table.
1742 For such cases we need not do anything here; the relocations will
1743 be handled correctly by relocate_section. */
1747 /* If there are no references to this symbol that do not use the
1748 GOT, we don't need to generate a copy reloc. */
1749 if (!h->non_got_ref)
1752 /* If -z nocopyreloc was given, we won't generate them either. */
1753 if (info->nocopyreloc)
1759 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1760 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1762 s = p->sec->output_section;
1763 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1767 /* If we didn't find any dynamic relocs in read-only sections, then
1768 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1777 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1778 h->root.root.string);
1782 /* We must allocate the symbol in our .dynbss section, which will
1783 become part of the .bss section of the executable. There will be
1784 an entry for this symbol in the .dynsym section. The dynamic
1785 object will contain position independent code, so all references
1786 from the dynamic object to this symbol will go through the global
1787 offset table. The dynamic linker will use the .dynsym entry to
1788 determine the address it must put in the global offset table, so
1789 both the dynamic object and the regular object will refer to the
1790 same memory location for the variable. */
1792 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
1793 to copy the initial value out of the dynamic object and into the
1794 runtime process image. We need to remember the offset into the
1795 .rel.bss section we are going to use. */
1796 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1798 htab->srelbss->size += SPARC_ELF_RELA_BYTES (htab);
1804 return _bfd_elf_adjust_dynamic_copy (h, s);
1807 /* Allocate space in .plt, .got and associated reloc sections for
1811 allocate_dynrelocs (struct elf_link_hash_entry *h, PTR inf)
1813 struct bfd_link_info *info;
1814 struct _bfd_sparc_elf_link_hash_table *htab;
1815 struct _bfd_sparc_elf_link_hash_entry *eh;
1816 struct _bfd_sparc_elf_dyn_relocs *p;
1818 if (h->root.type == bfd_link_hash_indirect)
1821 if (h->root.type == bfd_link_hash_warning)
1822 /* When warning symbols are created, they **replace** the "real"
1823 entry in the hash table, thus we never get to see the real
1824 symbol in a hash traversal. So look at it now. */
1825 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1827 info = (struct bfd_link_info *) inf;
1828 htab = _bfd_sparc_elf_hash_table (info);
1829 BFD_ASSERT (htab != NULL);
1831 if (htab->elf.dynamic_sections_created
1832 && h->plt.refcount > 0)
1834 /* Make sure this symbol is output as a dynamic symbol.
1835 Undefined weak syms won't yet be marked as dynamic. */
1836 if (h->dynindx == -1
1837 && !h->forced_local)
1839 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1843 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
1845 asection *s = htab->elf.splt;
1847 /* Allocate room for the header. */
1850 s->size = htab->plt_header_size;
1852 /* Allocate space for the .rela.plt.unloaded relocations. */
1853 if (htab->is_vxworks && !info->shared)
1854 htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
1857 /* The procedure linkage table size is bounded by the magnitude
1858 of the offset we can describe in the entry. */
1859 if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
1860 (((bfd_vma)1 << 31) << 1) : 0x400000))
1862 bfd_set_error (bfd_error_bad_value);
1866 if (SPARC_ELF_WORD_BYTES(htab) == 8
1867 && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
1869 bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
1872 off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
1874 h->plt.offset = (s->size - (off * 8));
1877 h->plt.offset = s->size;
1879 /* If this symbol is not defined in a regular file, and we are
1880 not generating a shared library, then set the symbol to this
1881 location in the .plt. This is required to make function
1882 pointers compare as equal between the normal executable and
1883 the shared library. */
1887 h->root.u.def.section = s;
1888 h->root.u.def.value = h->plt.offset;
1891 /* Make room for this entry. */
1892 s->size += htab->plt_entry_size;
1894 /* We also need to make an entry in the .rela.plt section. */
1895 htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab);
1897 if (htab->is_vxworks)
1899 /* Allocate space for the .got.plt entry. */
1900 htab->elf.sgotplt->size += 4;
1902 /* ...and for the .rela.plt.unloaded relocations. */
1904 htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
1909 h->plt.offset = (bfd_vma) -1;
1915 h->plt.offset = (bfd_vma) -1;
1919 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
1920 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
1921 if (h->got.refcount > 0
1924 && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
1925 h->got.offset = (bfd_vma) -1;
1926 else if (h->got.refcount > 0)
1930 int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
1932 /* Make sure this symbol is output as a dynamic symbol.
1933 Undefined weak syms won't yet be marked as dynamic. */
1934 if (h->dynindx == -1
1935 && !h->forced_local)
1937 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1942 h->got.offset = s->size;
1943 s->size += SPARC_ELF_WORD_BYTES (htab);
1944 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
1945 if (tls_type == GOT_TLS_GD)
1946 s->size += SPARC_ELF_WORD_BYTES (htab);
1947 dyn = htab->elf.dynamic_sections_created;
1948 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
1949 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
1951 if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
1952 || tls_type == GOT_TLS_IE)
1953 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
1954 else if (tls_type == GOT_TLS_GD)
1955 htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
1956 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
1957 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
1960 h->got.offset = (bfd_vma) -1;
1962 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
1963 if (eh->dyn_relocs == NULL)
1966 /* In the shared -Bsymbolic case, discard space allocated for
1967 dynamic pc-relative relocs against symbols which turn out to be
1968 defined in regular objects. For the normal shared case, discard
1969 space for pc-relative relocs that have become local due to symbol
1970 visibility changes. */
1974 if (SYMBOL_CALLS_LOCAL (info, h))
1976 struct _bfd_sparc_elf_dyn_relocs **pp;
1978 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
1980 p->count -= p->pc_count;
1989 if (htab->is_vxworks)
1991 struct _bfd_sparc_elf_dyn_relocs **pp;
1993 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
1995 if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
2002 /* Also discard relocs on undefined weak syms with non-default
2004 if (eh->dyn_relocs != NULL
2005 && h->root.type == bfd_link_hash_undefweak)
2007 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2008 eh->dyn_relocs = NULL;
2010 /* Make sure undefined weak symbols are output as a dynamic
2012 else if (h->dynindx == -1
2013 && !h->forced_local)
2015 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2022 /* For the non-shared case, discard space for relocs against
2023 symbols which turn out to need copy relocs or are not
2029 || (htab->elf.dynamic_sections_created
2030 && (h->root.type == bfd_link_hash_undefweak
2031 || h->root.type == bfd_link_hash_undefined))))
2033 /* Make sure this symbol is output as a dynamic symbol.
2034 Undefined weak syms won't yet be marked as dynamic. */
2035 if (h->dynindx == -1
2036 && !h->forced_local)
2038 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2042 /* If that succeeded, we know we'll be keeping all the
2044 if (h->dynindx != -1)
2048 eh->dyn_relocs = NULL;
2053 /* Finally, allocate space. */
2054 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2056 asection *sreloc = elf_section_data (p->sec)->sreloc;
2057 sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2063 /* Find any dynamic relocs that apply to read-only sections. */
2066 readonly_dynrelocs (struct elf_link_hash_entry *h, PTR inf)
2068 struct _bfd_sparc_elf_link_hash_entry *eh;
2069 struct _bfd_sparc_elf_dyn_relocs *p;
2071 if (h->root.type == bfd_link_hash_warning)
2072 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2074 eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
2075 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2077 asection *s = p->sec->output_section;
2079 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2081 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2083 info->flags |= DF_TEXTREL;
2085 /* Not an error, just cut short the traversal. */
2092 /* Return true if the dynamic symbol for a given section should be
2093 omitted when creating a shared library. */
2096 _bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
2097 struct bfd_link_info *info,
2100 /* We keep the .got section symbol so that explicit relocations
2101 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2102 can be turned into relocations against the .got symbol. */
2103 if (strcmp (p->name, ".got") == 0)
2106 return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
2109 /* Set the sizes of the dynamic sections. */
2112 _bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
2113 struct bfd_link_info *info)
2115 struct _bfd_sparc_elf_link_hash_table *htab;
2120 htab = _bfd_sparc_elf_hash_table (info);
2121 BFD_ASSERT (htab != NULL);
2122 dynobj = htab->elf.dynobj;
2123 BFD_ASSERT (dynobj != NULL);
2125 if (elf_hash_table (info)->dynamic_sections_created)
2127 /* Set the contents of the .interp section to the interpreter. */
2128 if (info->executable)
2130 s = bfd_get_section_by_name (dynobj, ".interp");
2131 BFD_ASSERT (s != NULL);
2132 s->size = htab->dynamic_interpreter_size;
2133 s->contents = (unsigned char *) htab->dynamic_interpreter;
2137 /* Set up .got offsets for local syms, and space for local dynamic
2139 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2141 bfd_signed_vma *local_got;
2142 bfd_signed_vma *end_local_got;
2143 char *local_tls_type;
2144 bfd_size_type locsymcount;
2145 Elf_Internal_Shdr *symtab_hdr;
2148 if (! is_sparc_elf (ibfd))
2151 for (s = ibfd->sections; s != NULL; s = s->next)
2153 struct _bfd_sparc_elf_dyn_relocs *p;
2155 for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
2157 if (!bfd_is_abs_section (p->sec)
2158 && bfd_is_abs_section (p->sec->output_section))
2160 /* Input section has been discarded, either because
2161 it is a copy of a linkonce section or due to
2162 linker script /DISCARD/, so we'll be discarding
2165 else if (htab->is_vxworks
2166 && strcmp (p->sec->output_section->name,
2169 /* Relocations in vxworks .tls_vars sections are
2170 handled specially by the loader. */
2172 else if (p->count != 0)
2174 srel = elf_section_data (p->sec)->sreloc;
2175 srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
2176 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2177 info->flags |= DF_TEXTREL;
2182 local_got = elf_local_got_refcounts (ibfd);
2186 symtab_hdr = &elf_symtab_hdr (ibfd);
2187 locsymcount = symtab_hdr->sh_info;
2188 end_local_got = local_got + locsymcount;
2189 local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
2191 srel = htab->elf.srelgot;
2192 for (; local_got < end_local_got; ++local_got, ++local_tls_type)
2196 *local_got = s->size;
2197 s->size += SPARC_ELF_WORD_BYTES (htab);
2198 if (*local_tls_type == GOT_TLS_GD)
2199 s->size += SPARC_ELF_WORD_BYTES (htab);
2201 || *local_tls_type == GOT_TLS_GD
2202 || *local_tls_type == GOT_TLS_IE)
2203 srel->size += SPARC_ELF_RELA_BYTES (htab);
2206 *local_got = (bfd_vma) -1;
2210 if (htab->tls_ldm_got.refcount > 0)
2212 /* Allocate 2 got entries and 1 dynamic reloc for
2213 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
2214 htab->tls_ldm_got.offset = htab->elf.sgot->size;
2215 htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
2216 htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab);
2219 htab->tls_ldm_got.offset = -1;
2221 /* Allocate global sym .plt and .got entries, and space for global
2222 sym dynamic relocs. */
2223 elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info);
2225 if (! ABI_64_P (output_bfd)
2226 && !htab->is_vxworks
2227 && elf_hash_table (info)->dynamic_sections_created)
2229 /* Make space for the trailing nop in .plt. */
2230 if (htab->elf.splt->size > 0)
2231 htab->elf.splt->size += 1 * SPARC_INSN_BYTES;
2233 /* If the .got section is more than 0x1000 bytes, we add
2234 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2235 bit relocations have a greater chance of working.
2237 FIXME: Make this optimization work for 64-bit too. */
2238 if (htab->elf.sgot->size >= 0x1000
2239 && elf_hash_table (info)->hgot->root.u.def.value == 0)
2240 elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
2243 /* The check_relocs and adjust_dynamic_symbol entry points have
2244 determined the sizes of the various dynamic sections. Allocate
2246 for (s = dynobj->sections; s != NULL; s = s->next)
2248 if ((s->flags & SEC_LINKER_CREATED) == 0)
2251 if (s == htab->elf.splt
2252 || s == htab->elf.sgot
2253 || s == htab->sdynbss
2254 || s == htab->elf.sgotplt)
2256 /* Strip this section if we don't need it; see the
2259 else if (CONST_STRNEQ (s->name, ".rela"))
2263 /* We use the reloc_count field as a counter if we need
2264 to copy relocs into the output file. */
2270 /* It's not one of our sections. */
2276 /* If we don't need this section, strip it from the
2277 output file. This is mostly to handle .rela.bss and
2278 .rela.plt. We must create both sections in
2279 create_dynamic_sections, because they must be created
2280 before the linker maps input sections to output
2281 sections. The linker does that before
2282 adjust_dynamic_symbol is called, and it is that
2283 function which decides whether anything needs to go
2284 into these sections. */
2285 s->flags |= SEC_EXCLUDE;
2289 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2292 /* Allocate memory for the section contents. Zero the memory
2293 for the benefit of .rela.plt, which has 4 unused entries
2294 at the beginning, and we don't want garbage. */
2295 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
2296 if (s->contents == NULL)
2300 if (elf_hash_table (info)->dynamic_sections_created)
2302 /* Add some entries to the .dynamic section. We fill in the
2303 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2304 must add the entries now so that we get the correct size for
2305 the .dynamic section. The DT_DEBUG entry is filled in by the
2306 dynamic linker and used by the debugger. */
2307 #define add_dynamic_entry(TAG, VAL) \
2308 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2310 if (info->executable)
2312 if (!add_dynamic_entry (DT_DEBUG, 0))
2316 if (htab->elf.srelplt->size != 0)
2318 if (!add_dynamic_entry (DT_PLTGOT, 0)
2319 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2320 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2321 || !add_dynamic_entry (DT_JMPREL, 0))
2325 if (!add_dynamic_entry (DT_RELA, 0)
2326 || !add_dynamic_entry (DT_RELASZ, 0)
2327 || !add_dynamic_entry (DT_RELAENT,
2328 SPARC_ELF_RELA_BYTES (htab)))
2331 /* If any dynamic relocs apply to a read-only section,
2332 then we need a DT_TEXTREL entry. */
2333 if ((info->flags & DF_TEXTREL) == 0)
2334 elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
2337 if (info->flags & DF_TEXTREL)
2339 if (!add_dynamic_entry (DT_TEXTREL, 0))
2343 if (ABI_64_P (output_bfd))
2346 struct _bfd_sparc_elf_app_reg * app_regs;
2347 struct elf_strtab_hash *dynstr;
2348 struct elf_link_hash_table *eht = elf_hash_table (info);
2350 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2351 entries if needed. */
2352 app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
2353 dynstr = eht->dynstr;
2355 for (reg = 0; reg < 4; reg++)
2356 if (app_regs [reg].name != NULL)
2358 struct elf_link_local_dynamic_entry *entry, *e;
2360 if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
2363 entry = (struct elf_link_local_dynamic_entry *)
2364 bfd_hash_allocate (&info->hash->table, sizeof (*entry));
2368 /* We cheat here a little bit: the symbol will not be local, so we
2369 put it at the end of the dynlocal linked list. We will fix it
2370 later on, as we have to fix other fields anyway. */
2371 entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
2372 entry->isym.st_size = 0;
2373 if (*app_regs [reg].name != '\0')
2375 = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
2377 entry->isym.st_name = 0;
2378 entry->isym.st_other = 0;
2379 entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
2381 entry->isym.st_shndx = app_regs [reg].shndx;
2383 entry->input_bfd = output_bfd;
2384 entry->input_indx = -1;
2386 if (eht->dynlocal == NULL)
2387 eht->dynlocal = entry;
2390 for (e = eht->dynlocal; e->next; e = e->next)
2397 if (htab->is_vxworks
2398 && !elf_vxworks_add_dynamic_entries (output_bfd, info))
2401 #undef add_dynamic_entry
2407 _bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
2409 if (!sec->used_by_bfd)
2411 struct _bfd_sparc_elf_section_data *sdata;
2412 bfd_size_type amt = sizeof (*sdata);
2414 sdata = bfd_zalloc (abfd, amt);
2417 sec->used_by_bfd = sdata;
2420 return _bfd_elf_new_section_hook (abfd, sec);
2424 _bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
2425 struct bfd_section *section,
2426 struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
2429 if (link_info->relocatable)
2430 (*link_info->callbacks->einfo)
2431 (_("%P%F: --relax and -r may not be used together\n"));
2434 sec_do_relax (section) = 1;
2438 /* Return the base VMA address which should be subtracted from real addresses
2439 when resolving @dtpoff relocation.
2440 This is PT_TLS segment p_vaddr. */
2443 dtpoff_base (struct bfd_link_info *info)
2445 /* If tls_sec is NULL, we should have signalled an error already. */
2446 if (elf_hash_table (info)->tls_sec == NULL)
2448 return elf_hash_table (info)->tls_sec->vma;
2451 /* Return the relocation value for @tpoff relocation
2452 if STT_TLS virtual address is ADDRESS. */
2455 tpoff (struct bfd_link_info *info, bfd_vma address)
2457 struct elf_link_hash_table *htab = elf_hash_table (info);
2459 /* If tls_sec is NULL, we should have signalled an error already. */
2460 if (htab->tls_sec == NULL)
2462 return address - htab->tls_size - htab->tls_sec->vma;
2465 /* Relocate a SPARC ELF section. */
2468 _bfd_sparc_elf_relocate_section (bfd *output_bfd,
2469 struct bfd_link_info *info,
2471 asection *input_section,
2473 Elf_Internal_Rela *relocs,
2474 Elf_Internal_Sym *local_syms,
2475 asection **local_sections)
2477 struct _bfd_sparc_elf_link_hash_table *htab;
2478 Elf_Internal_Shdr *symtab_hdr;
2479 struct elf_link_hash_entry **sym_hashes;
2480 bfd_vma *local_got_offsets;
2483 Elf_Internal_Rela *rel;
2484 Elf_Internal_Rela *relend;
2486 bfd_boolean is_vxworks_tls;
2488 htab = _bfd_sparc_elf_hash_table (info);
2489 BFD_ASSERT (htab != NULL);
2490 symtab_hdr = &elf_symtab_hdr (input_bfd);
2491 sym_hashes = elf_sym_hashes (input_bfd);
2492 local_got_offsets = elf_local_got_offsets (input_bfd);
2494 if (elf_hash_table (info)->hgot == NULL)
2497 got_base = elf_hash_table (info)->hgot->root.u.def.value;
2499 sreloc = elf_section_data (input_section)->sreloc;
2500 /* We have to handle relocations in vxworks .tls_vars sections
2501 specially, because the dynamic loader is 'weird'. */
2502 is_vxworks_tls = (htab->is_vxworks && info->shared
2503 && !strcmp (input_section->output_section->name,
2507 if (ABI_64_P (output_bfd))
2508 num_relocs = NUM_SHDR_ENTRIES (& elf_section_data (input_section)->rel_hdr);
2510 num_relocs = input_section->reloc_count;
2511 relend = relocs + num_relocs;
2512 for (; rel < relend; rel++)
2514 int r_type, tls_type;
2515 reloc_howto_type *howto;
2516 unsigned long r_symndx;
2517 struct elf_link_hash_entry *h;
2518 Elf_Internal_Sym *sym;
2520 bfd_vma relocation, off;
2521 bfd_reloc_status_type r;
2522 bfd_boolean is_plt = FALSE;
2523 bfd_boolean unresolved_reloc;
2525 r_type = SPARC_ELF_R_TYPE (rel->r_info);
2526 if (r_type == R_SPARC_GNU_VTINHERIT
2527 || r_type == R_SPARC_GNU_VTENTRY)
2530 if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
2532 bfd_set_error (bfd_error_bad_value);
2535 howto = _bfd_sparc_elf_howto_table + r_type;
2537 r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
2541 unresolved_reloc = FALSE;
2542 if (r_symndx < symtab_hdr->sh_info)
2544 sym = local_syms + r_symndx;
2545 sec = local_sections[r_symndx];
2546 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2552 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
2553 r_symndx, symtab_hdr, sym_hashes,
2555 unresolved_reloc, warned);
2558 /* To avoid generating warning messages about truncated
2559 relocations, set the relocation's address to be the same as
2560 the start of this section. */
2561 if (input_section->output_section != NULL)
2562 relocation = input_section->output_section->vma;
2568 if (sec != NULL && elf_discarded_section (sec))
2570 /* For relocs against symbols from removed linkonce
2571 sections, or sections discarded by a linker script, we
2572 just want the section contents zeroed. Avoid any
2573 special processing. */
2574 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
2580 if (info->relocatable)
2585 case R_SPARC_GOTDATA_HIX22:
2586 case R_SPARC_GOTDATA_LOX10:
2587 case R_SPARC_GOTDATA_OP_HIX22:
2588 case R_SPARC_GOTDATA_OP_LOX10:
2589 /* We don't support these code transformation optimizations
2590 yet, so just leave the sequence alone and treat as
2592 if (r_type == R_SPARC_GOTDATA_HIX22
2593 || r_type == R_SPARC_GOTDATA_OP_HIX22)
2594 r_type = R_SPARC_GOT22;
2596 r_type = R_SPARC_GOT10;
2602 /* Relocation is to the entry for this symbol in the global
2604 if (htab->elf.sgot == NULL)
2611 off = h->got.offset;
2612 BFD_ASSERT (off != (bfd_vma) -1);
2613 dyn = elf_hash_table (info)->dynamic_sections_created;
2615 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2617 && SYMBOL_REFERENCES_LOCAL (info, h)))
2619 /* This is actually a static link, or it is a
2620 -Bsymbolic link and the symbol is defined
2621 locally, or the symbol was forced to be local
2622 because of a version file. We must initialize
2623 this entry in the global offset table. Since the
2624 offset must always be a multiple of 8 for 64-bit
2625 and 4 for 32-bit, we use the least significant bit
2626 to record whether we have initialized it already.
2628 When doing a dynamic link, we create a .rela.got
2629 relocation entry to initialize the value. This
2630 is done in the finish_dynamic_symbol routine. */
2635 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
2636 htab->elf.sgot->contents + off);
2641 unresolved_reloc = FALSE;
2645 BFD_ASSERT (local_got_offsets != NULL
2646 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2648 off = local_got_offsets[r_symndx];
2650 /* The offset must always be a multiple of 8 on 64-bit and
2651 4 on 32-bit. We use the least significant bit to record
2652 whether we have already processed this entry. */
2661 Elf_Internal_Rela outrel;
2663 /* We need to generate a R_SPARC_RELATIVE reloc
2664 for the dynamic linker. */
2665 s = htab->elf.srelgot;
2666 BFD_ASSERT (s != NULL);
2668 outrel.r_offset = (htab->elf.sgot->output_section->vma
2669 + htab->elf.sgot->output_offset
2671 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
2672 0, R_SPARC_RELATIVE);
2673 outrel.r_addend = relocation;
2675 sparc_elf_append_rela (output_bfd, s, &outrel);
2678 SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
2679 htab->elf.sgot->contents + off);
2680 local_got_offsets[r_symndx] |= 1;
2683 relocation = htab->elf.sgot->output_offset + off - got_base;
2688 if (h == NULL || h->plt.offset == (bfd_vma) -1)
2690 r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
2695 case R_SPARC_WPLT30:
2696 case R_SPARC_HIPLT22:
2697 case R_SPARC_LOPLT10:
2698 case R_SPARC_PCPLT32:
2699 case R_SPARC_PCPLT22:
2700 case R_SPARC_PCPLT10:
2702 /* Relocation is to the entry for this symbol in the
2703 procedure linkage table. */
2705 if (! ABI_64_P (output_bfd))
2707 /* The Solaris native assembler will generate a WPLT30 reloc
2708 for a local symbol if you assemble a call from one
2709 section to another when using -K pic. We treat it as
2714 /* PR 7027: We need similar behaviour for 64-bit binaries. */
2715 else if (r_type == R_SPARC_WPLT30 && h == NULL)
2719 BFD_ASSERT (h != NULL);
2722 if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL)
2724 /* We didn't make a PLT entry for this symbol. This
2725 happens when statically linking PIC code, or when
2726 using -Bsymbolic. */
2730 relocation = (htab->elf.splt->output_section->vma
2731 + htab->elf.splt->output_offset
2733 unresolved_reloc = FALSE;
2734 if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
2736 r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
2744 case R_SPARC_PC_HH22:
2745 case R_SPARC_PC_HM10:
2746 case R_SPARC_PC_LM22:
2748 && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
2752 case R_SPARC_DISP16:
2753 case R_SPARC_DISP32:
2754 case R_SPARC_DISP64:
2755 case R_SPARC_WDISP30:
2756 case R_SPARC_WDISP22:
2757 case R_SPARC_WDISP19:
2758 case R_SPARC_WDISP16:
2785 if ((input_section->flags & SEC_ALLOC) == 0
2791 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2792 || h->root.type != bfd_link_hash_undefweak)
2793 && (! howto->pc_relative
2794 || !SYMBOL_CALLS_LOCAL (info, h)))
2801 || h->root.type == bfd_link_hash_undefweak
2802 || h->root.type == bfd_link_hash_undefined)))
2804 Elf_Internal_Rela outrel;
2805 bfd_boolean skip, relocate = FALSE;
2807 /* When generating a shared object, these relocations
2808 are copied into the output file to be resolved at run
2811 BFD_ASSERT (sreloc != NULL);
2816 _bfd_elf_section_offset (output_bfd, info, input_section,
2818 if (outrel.r_offset == (bfd_vma) -1)
2820 else if (outrel.r_offset == (bfd_vma) -2)
2821 skip = TRUE, relocate = TRUE;
2822 outrel.r_offset += (input_section->output_section->vma
2823 + input_section->output_offset);
2825 /* Optimize unaligned reloc usage now that we know where
2826 it finally resides. */
2830 if (outrel.r_offset & 1)
2831 r_type = R_SPARC_UA16;
2834 if (!(outrel.r_offset & 1))
2835 r_type = R_SPARC_16;
2838 if (outrel.r_offset & 3)
2839 r_type = R_SPARC_UA32;
2842 if (!(outrel.r_offset & 3))
2843 r_type = R_SPARC_32;
2846 if (outrel.r_offset & 7)
2847 r_type = R_SPARC_UA64;
2850 if (!(outrel.r_offset & 7))
2851 r_type = R_SPARC_64;
2854 case R_SPARC_DISP16:
2855 case R_SPARC_DISP32:
2856 case R_SPARC_DISP64:
2857 /* If the symbol is not dynamic, we should not keep
2858 a dynamic relocation. But an .rela.* slot has been
2859 allocated for it, output R_SPARC_NONE.
2860 FIXME: Add code tracking needed dynamic relocs as
2862 if (h->dynindx == -1)
2863 skip = TRUE, relocate = TRUE;
2868 memset (&outrel, 0, sizeof outrel);
2869 /* h->dynindx may be -1 if the symbol was marked to
2871 else if (h != NULL &&
2875 || !SYMBOLIC_BIND (info, h)
2876 || !h->def_regular))
2878 BFD_ASSERT (h->dynindx != -1);
2879 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
2880 outrel.r_addend = rel->r_addend;
2884 if (r_type == R_SPARC_32 || r_type == R_SPARC_64)
2886 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
2887 0, R_SPARC_RELATIVE);
2888 outrel.r_addend = relocation + rel->r_addend;
2894 outrel.r_addend = relocation + rel->r_addend;
2897 sec = htab->elf.splt;
2899 if (bfd_is_abs_section (sec))
2901 else if (sec == NULL || sec->owner == NULL)
2903 bfd_set_error (bfd_error_bad_value);
2910 /* We are turning this relocation into one
2911 against a section symbol. It would be
2912 proper to subtract the symbol's value,
2913 osec->vma, from the emitted reloc addend,
2914 but ld.so expects buggy relocs. */
2915 osec = sec->output_section;
2916 indx = elf_section_data (osec)->dynindx;
2920 osec = htab->elf.text_index_section;
2921 indx = elf_section_data (osec)->dynindx;
2924 /* FIXME: we really should be able to link non-pic
2925 shared libraries. */
2929 (*_bfd_error_handler)
2930 (_("%B: probably compiled without -fPIC?"),
2932 bfd_set_error (bfd_error_bad_value);
2937 outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
2942 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
2944 /* This reloc will be computed at runtime, so there's no
2945 need to do anything now. */
2951 case R_SPARC_TLS_GD_HI22:
2952 if (! ABI_64_P (input_bfd)
2953 && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
2955 /* R_SPARC_REV32 used the same reloc number as
2956 R_SPARC_TLS_GD_HI22. */
2957 r_type = R_SPARC_REV32;
2962 case R_SPARC_TLS_GD_LO10:
2963 case R_SPARC_TLS_IE_HI22:
2964 case R_SPARC_TLS_IE_LO10:
2965 r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
2966 tls_type = GOT_UNKNOWN;
2967 if (h == NULL && local_got_offsets)
2968 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
2971 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
2972 if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE)
2973 switch (SPARC_ELF_R_TYPE (rel->r_info))
2975 case R_SPARC_TLS_GD_HI22:
2976 case R_SPARC_TLS_IE_HI22:
2977 r_type = R_SPARC_TLS_LE_HIX22;
2980 r_type = R_SPARC_TLS_LE_LOX10;
2984 if (tls_type == GOT_TLS_IE)
2987 case R_SPARC_TLS_GD_HI22:
2988 r_type = R_SPARC_TLS_IE_HI22;
2990 case R_SPARC_TLS_GD_LO10:
2991 r_type = R_SPARC_TLS_IE_LO10;
2995 if (r_type == R_SPARC_TLS_LE_HIX22)
2997 relocation = tpoff (info, relocation);
3000 if (r_type == R_SPARC_TLS_LE_LOX10)
3002 /* Change add into xor. */
3003 relocation = tpoff (info, relocation);
3004 bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
3005 contents + rel->r_offset)
3006 | 0x80182000), contents + rel->r_offset);
3012 off = h->got.offset;
3017 BFD_ASSERT (local_got_offsets != NULL);
3018 off = local_got_offsets[r_symndx];
3019 local_got_offsets[r_symndx] |= 1;
3023 if (htab->elf.sgot == NULL)
3030 Elf_Internal_Rela outrel;
3033 if (htab->elf.srelgot == NULL)
3036 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3037 htab->elf.sgot->contents + off);
3038 outrel.r_offset = (htab->elf.sgot->output_section->vma
3039 + htab->elf.sgot->output_offset + off);
3040 indx = h && h->dynindx != -1 ? h->dynindx : 0;
3041 if (r_type == R_SPARC_TLS_IE_HI22
3042 || r_type == R_SPARC_TLS_IE_LO10)
3043 dr_type = SPARC_ELF_TPOFF_RELOC (htab);
3045 dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
3046 if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
3047 outrel.r_addend = relocation - dtpoff_base (info);
3049 outrel.r_addend = 0;
3050 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
3051 sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel);
3053 if (r_type == R_SPARC_TLS_GD_HI22
3054 || r_type == R_SPARC_TLS_GD_LO10)
3058 BFD_ASSERT (! unresolved_reloc);
3059 SPARC_ELF_PUT_WORD (htab, output_bfd,
3060 relocation - dtpoff_base (info),
3061 (htab->elf.sgot->contents + off
3062 + SPARC_ELF_WORD_BYTES (htab)));
3066 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3067 (htab->elf.sgot->contents + off
3068 + SPARC_ELF_WORD_BYTES (htab)));
3069 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
3070 SPARC_ELF_DTPOFF_RELOC (htab));
3071 outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
3072 sparc_elf_append_rela (output_bfd, htab->elf.srelgot,
3076 else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
3078 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3079 (htab->elf.sgot->contents + off
3080 + SPARC_ELF_WORD_BYTES (htab)));
3084 if (off >= (bfd_vma) -2)
3087 relocation = htab->elf.sgot->output_offset + off - got_base;
3088 unresolved_reloc = FALSE;
3089 howto = _bfd_sparc_elf_howto_table + r_type;
3092 case R_SPARC_TLS_LDM_HI22:
3093 case R_SPARC_TLS_LDM_LO10:
3096 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3099 off = htab->tls_ldm_got.offset;
3100 htab->tls_ldm_got.offset |= 1;
3101 goto r_sparc_tlsldm;
3103 case R_SPARC_TLS_LDO_HIX22:
3104 case R_SPARC_TLS_LDO_LOX10:
3107 relocation -= dtpoff_base (info);
3111 r_type = (r_type == R_SPARC_TLS_LDO_HIX22
3112 ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
3115 case R_SPARC_TLS_LE_HIX22:
3116 case R_SPARC_TLS_LE_LOX10:
3119 Elf_Internal_Rela outrel;
3120 bfd_boolean skip, relocate = FALSE;
3122 BFD_ASSERT (sreloc != NULL);
3125 _bfd_elf_section_offset (output_bfd, info, input_section,
3127 if (outrel.r_offset == (bfd_vma) -1)
3129 else if (outrel.r_offset == (bfd_vma) -2)
3130 skip = TRUE, relocate = TRUE;
3131 outrel.r_offset += (input_section->output_section->vma
3132 + input_section->output_offset);
3134 memset (&outrel, 0, sizeof outrel);
3137 outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
3138 outrel.r_addend = relocation - dtpoff_base (info)
3142 sparc_elf_append_rela (output_bfd, sreloc, &outrel);
3145 relocation = tpoff (info, relocation);
3148 case R_SPARC_TLS_LDM_CALL:
3152 bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
3157 case R_SPARC_TLS_GD_CALL:
3158 tls_type = GOT_UNKNOWN;
3159 if (h == NULL && local_got_offsets)
3160 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3162 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3164 || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
3168 if (!info->shared && (h == NULL || h->dynindx == -1))
3171 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3176 if (rel + 1 < relend
3177 && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
3178 && rel[1].r_offset == rel->r_offset + 4
3179 && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
3180 && (((insn = bfd_get_32 (input_bfd,
3181 contents + rel[1].r_offset))
3182 >> 25) & 0x1f) == 8)
3185 call __tls_get_addr, %tgd_call(foo)
3186 add %reg1, %reg2, %o0, %tgd_add(foo)
3187 and change it into IE:
3188 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3189 add %g7, %o0, %o0, %tie_add(foo).
3190 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3191 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3192 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3193 bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
3194 contents + rel->r_offset);
3195 bfd_put_32 (output_bfd, 0x9001c008,
3196 contents + rel->r_offset + 4);
3201 bfd_put_32 (output_bfd, 0x9001c008, contents + rel->r_offset);
3205 h = (struct elf_link_hash_entry *)
3206 bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
3208 BFD_ASSERT (h != NULL);
3209 r_type = R_SPARC_WPLT30;
3210 howto = _bfd_sparc_elf_howto_table + r_type;
3211 goto r_sparc_wplt30;
3213 case R_SPARC_TLS_GD_ADD:
3214 tls_type = GOT_UNKNOWN;
3215 if (h == NULL && local_got_offsets)
3216 tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
3218 tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
3219 if (! info->shared || tls_type == GOT_TLS_IE)
3221 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3223 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3225 add %g7, %reg2, %reg3. */
3226 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3227 if ((h != NULL && h->dynindx != -1) || info->shared)
3228 relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
3230 relocation = (insn & ~0x7c000) | 0x1c000;
3231 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3235 case R_SPARC_TLS_LDM_ADD:
3237 bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
3240 case R_SPARC_TLS_LDO_ADD:
3243 /* Change rs1 into %g7. */
3244 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3245 insn = (insn & ~0x7c000) | 0x1c000;
3246 bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
3250 case R_SPARC_GOTDATA_OP:
3251 /* We don't support gotdata code transformation optimizations
3252 yet, so simply leave the sequence as-is. */
3255 case R_SPARC_TLS_IE_LD:
3256 case R_SPARC_TLS_IE_LDX:
3257 if (! info->shared && (h == NULL || h->dynindx == -1))
3259 bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
3260 int rs2 = insn & 0x1f;
3261 int rd = (insn >> 25) & 0x1f;
3264 relocation = SPARC_NOP;
3266 relocation = 0x80100000 | (insn & 0x3e00001f);
3267 bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
3271 case R_SPARC_TLS_IE_ADD:
3272 /* Totally useless relocation. */
3275 case R_SPARC_TLS_DTPOFF32:
3276 case R_SPARC_TLS_DTPOFF64:
3277 relocation -= dtpoff_base (info);
3284 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3285 because such sections are not SEC_ALLOC and thus ld.so will
3286 not process them. */
3287 if (unresolved_reloc
3288 && !((input_section->flags & SEC_DEBUGGING) != 0
3290 (*_bfd_error_handler)
3291 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
3294 (long) rel->r_offset,
3296 h->root.root.string);
3298 r = bfd_reloc_continue;
3299 if (r_type == R_SPARC_OLO10)
3303 if (! ABI_64_P (output_bfd))
3306 relocation += rel->r_addend;
3307 relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
3309 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3310 x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
3311 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3313 r = bfd_check_overflow (howto->complain_on_overflow,
3314 howto->bitsize, howto->rightshift,
3315 bfd_arch_bits_per_address (input_bfd),
3318 else if (r_type == R_SPARC_WDISP16)
3322 relocation += rel->r_addend;
3323 relocation -= (input_section->output_section->vma
3324 + input_section->output_offset);
3325 relocation -= rel->r_offset;
3327 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3328 x |= ((((relocation >> 2) & 0xc000) << 6)
3329 | ((relocation >> 2) & 0x3fff));
3330 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3332 r = bfd_check_overflow (howto->complain_on_overflow,
3333 howto->bitsize, howto->rightshift,
3334 bfd_arch_bits_per_address (input_bfd),
3337 else if (r_type == R_SPARC_REV32)
3341 relocation = relocation + rel->r_addend;
3343 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3345 bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
3348 else if (r_type == R_SPARC_TLS_LDO_HIX22
3349 || r_type == R_SPARC_TLS_LE_HIX22)
3353 relocation += rel->r_addend;
3354 if (r_type == R_SPARC_TLS_LE_HIX22)
3355 relocation ^= MINUS_ONE;
3357 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3358 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3359 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3362 else if (r_type == R_SPARC_TLS_LDO_LOX10
3363 || r_type == R_SPARC_TLS_LE_LOX10)
3367 relocation += rel->r_addend;
3368 relocation &= 0x3ff;
3369 if (r_type == R_SPARC_TLS_LE_LOX10)
3370 relocation |= 0x1c00;
3372 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3373 x = (x & ~(bfd_vma) 0x1fff) | relocation;
3374 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3378 else if (r_type == R_SPARC_HIX22)
3382 relocation += rel->r_addend;
3383 relocation = relocation ^ MINUS_ONE;
3385 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3386 x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
3387 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3389 r = bfd_check_overflow (howto->complain_on_overflow,
3390 howto->bitsize, howto->rightshift,
3391 bfd_arch_bits_per_address (input_bfd),
3394 else if (r_type == R_SPARC_LOX10)
3398 relocation += rel->r_addend;
3399 relocation = (relocation & 0x3ff) | 0x1c00;
3401 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3402 x = (x & ~(bfd_vma) 0x1fff) | relocation;
3403 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3407 else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
3408 && sec_do_relax (input_section)
3409 && rel->r_offset + 4 < input_section->size)
3413 #define XCC (2 << 20)
3414 #define COND(x) (((x)&0xf)<<25)
3415 #define CONDA COND(0x8)
3416 #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
3417 #define INSN_BA (F2(0,2) | CONDA)
3418 #define INSN_OR F3(2, 0x2, 0)
3419 #define INSN_NOP F2(0,4)
3423 /* If the instruction is a call with either:
3425 arithmetic instruction with rd == %o7
3426 where rs1 != %o7 and rs2 if it is register != %o7
3427 then we can optimize if the call destination is near
3428 by changing the call into a branch always. */
3429 x = bfd_get_32 (input_bfd, contents + rel->r_offset);
3430 y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
3431 if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
3433 if (((y & OP3(~0)) == OP3(0x3d) /* restore */
3434 || ((y & OP3(0x28)) == 0 /* arithmetic */
3435 && (y & RD(~0)) == RD(O7)))
3436 && (y & RS1(~0)) != RS1(O7)
3438 || (y & RS2(~0)) != RS2(O7)))
3442 reloc = relocation + rel->r_addend - rel->r_offset;
3443 reloc -= (input_section->output_section->vma
3444 + input_section->output_offset);
3446 /* Ensure the branch fits into simm22. */
3447 if ((reloc & 3) == 0
3448 && ((reloc & ~(bfd_vma)0x7fffff) == 0
3449 || ((reloc | 0x7fffff) == ~(bfd_vma)0)))
3453 /* Check whether it fits into simm19. */
3454 if (((reloc & 0x3c0000) == 0
3455 || (reloc & 0x3c0000) == 0x3c0000)
3456 && (ABI_64_P (output_bfd)
3457 || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
3458 x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
3460 x = INSN_BA | (reloc & 0x3fffff); /* ba */
3461 bfd_put_32 (input_bfd, x, contents + rel->r_offset);
3463 if (rel->r_offset >= 4
3464 && (y & (0xffffffff ^ RS1(~0)))
3465 == (INSN_OR | RD(O7) | RS2(G0)))
3470 z = bfd_get_32 (input_bfd,
3471 contents + rel->r_offset - 4);
3472 if ((z & (0xffffffff ^ RD(~0)))
3473 != (INSN_OR | RS1(O7) | RS2(G0)))
3481 If call foo was replaced with ba, replace
3482 or %rN, %g0, %o7 with nop. */
3484 reg = (y & RS1(~0)) >> 14;
3485 if (reg != ((z & RD(~0)) >> 25)
3486 || reg == G0 || reg == O7)
3489 bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
3490 contents + rel->r_offset + 4);
3498 if (r == bfd_reloc_continue)
3499 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3500 contents, rel->r_offset,
3501 relocation, rel->r_addend);
3503 if (r != bfd_reloc_ok)
3508 case bfd_reloc_outofrange:
3510 case bfd_reloc_overflow:
3514 /* The Solaris native linker silently disregards overflows.
3515 We don't, but this breaks stabs debugging info, whose
3516 relocations are only 32-bits wide. Ignore overflows in
3517 this case and also for discarded entries. */
3518 if ((r_type == R_SPARC_32 || r_type == R_SPARC_DISP32)
3519 && (((input_section->flags & SEC_DEBUGGING) != 0
3520 && strcmp (bfd_section_name (input_bfd,
3523 || _bfd_elf_section_offset (output_bfd, info,
3531 /* Assume this is a call protected by other code that
3532 detect the symbol is undefined. If this is the case,
3533 we can safely ignore the overflow. If not, the
3534 program is hosed anyway, and a little warning isn't
3536 if (h->root.type == bfd_link_hash_undefweak
3537 && howto->pc_relative)
3544 name = bfd_elf_string_from_elf_section (input_bfd,
3545 symtab_hdr->sh_link,
3550 name = bfd_section_name (input_bfd, sec);
3552 if (! ((*info->callbacks->reloc_overflow)
3553 (info, (h ? &h->root : NULL), name, howto->name,
3554 (bfd_vma) 0, input_bfd, input_section,
3566 /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
3567 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
3568 is the offset of the associated .got.plt entry from
3569 _GLOBAL_OFFSET_TABLE_. */
3572 sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
3573 bfd_vma plt_offset, bfd_vma plt_index,
3577 const bfd_vma *plt_entry;
3578 struct _bfd_sparc_elf_link_hash_table *htab;
3580 Elf_Internal_Rela rela;
3582 htab = _bfd_sparc_elf_hash_table (info);
3583 BFD_ASSERT (htab != NULL);
3587 plt_entry = sparc_vxworks_shared_plt_entry;
3592 plt_entry = sparc_vxworks_exec_plt_entry;
3593 got_base = (htab->elf.hgot->root.u.def.value
3594 + htab->elf.hgot->root.u.def.section->output_offset
3595 + htab->elf.hgot->root.u.def.section->output_section->vma);
3598 /* Fill in the entry in the procedure linkage table. */
3599 bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
3600 htab->elf.splt->contents + plt_offset);
3601 bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
3602 htab->elf.splt->contents + plt_offset + 4);
3603 bfd_put_32 (output_bfd, plt_entry[2],
3604 htab->elf.splt->contents + plt_offset + 8);
3605 bfd_put_32 (output_bfd, plt_entry[3],
3606 htab->elf.splt->contents + plt_offset + 12);
3607 bfd_put_32 (output_bfd, plt_entry[4],
3608 htab->elf.splt->contents + plt_offset + 16);
3609 bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
3610 htab->elf.splt->contents + plt_offset + 20);
3611 /* PC-relative displacement for a branch to the start of
3613 bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
3615 htab->elf.splt->contents + plt_offset + 24);
3616 bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
3617 htab->elf.splt->contents + plt_offset + 28);
3619 /* Fill in the .got.plt entry, pointing initially at the
3620 second half of the PLT entry. */
3621 BFD_ASSERT (htab->elf.sgotplt != NULL);
3622 bfd_put_32 (output_bfd,
3623 htab->elf.splt->output_section->vma
3624 + htab->elf.splt->output_offset
3626 htab->elf.sgotplt->contents + got_offset);
3628 /* Add relocations to .rela.plt.unloaded. */
3631 loc = (htab->srelplt2->contents
3632 + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
3634 /* Relocate the initial sethi. */
3635 rela.r_offset = (htab->elf.splt->output_section->vma
3636 + htab->elf.splt->output_offset
3638 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
3639 rela.r_addend = got_offset;
3640 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3641 loc += sizeof (Elf32_External_Rela);
3643 /* Likewise the following or. */
3645 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
3646 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3647 loc += sizeof (Elf32_External_Rela);
3649 /* Relocate the .got.plt entry. */
3650 rela.r_offset = (htab->elf.sgotplt->output_section->vma
3651 + htab->elf.sgotplt->output_offset
3653 rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
3654 rela.r_addend = plt_offset + 20;
3655 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3659 /* Finish up dynamic symbol handling. We set the contents of various
3660 dynamic sections here. */
3663 _bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
3664 struct bfd_link_info *info,
3665 struct elf_link_hash_entry *h,
3666 Elf_Internal_Sym *sym)
3668 struct _bfd_sparc_elf_link_hash_table *htab;
3669 const struct elf_backend_data *bed;
3671 htab = _bfd_sparc_elf_hash_table (info);
3672 BFD_ASSERT (htab != NULL);
3673 bed = get_elf_backend_data (output_bfd);
3675 if (h->plt.offset != (bfd_vma) -1)
3679 Elf_Internal_Rela rela;
3681 bfd_vma r_offset, got_offset;
3684 /* This symbol has an entry in the PLT. Set it up. */
3686 BFD_ASSERT (h->dynindx != -1);
3688 splt = htab->elf.splt;
3689 srela = htab->elf.srelplt;
3690 BFD_ASSERT (splt != NULL && srela != NULL);
3692 /* Fill in the entry in the .rela.plt section. */
3693 if (htab->is_vxworks)
3695 /* Work out the index of this PLT entry. */
3696 rela_index = ((h->plt.offset - htab->plt_header_size)
3697 / htab->plt_entry_size);
3699 /* Calculate the offset of the associated .got.plt entry.
3700 The first three entries are reserved. */
3701 got_offset = (rela_index + 3) * 4;
3703 sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
3704 rela_index, got_offset);
3707 /* On VxWorks, the relocation points to the .got.plt entry,
3708 not the .plt entry. */
3709 rela.r_offset = (htab->elf.sgotplt->output_section->vma
3710 + htab->elf.sgotplt->output_offset
3716 /* Fill in the entry in the procedure linkage table. */
3717 rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
3718 h->plt.offset, splt->size,
3721 rela.r_offset = r_offset
3722 + (splt->output_section->vma + splt->output_offset);
3723 if (! ABI_64_P (output_bfd)
3724 || h->plt.offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
3730 rela.r_addend = (-(h->plt.offset + 4)
3731 - splt->output_section->vma
3732 - splt->output_offset);
3735 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_JMP_SLOT);
3737 /* Adjust for the first 4 reserved elements in the .plt section
3738 when setting the offset in the .rela.plt section.
3739 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
3740 thus .plt[4] has corresponding .rela.plt[0] and so on. */
3742 loc = srela->contents;
3743 loc += rela_index * bed->s->sizeof_rela;
3744 bed->s->swap_reloca_out (output_bfd, &rela, loc);
3746 if (!h->def_regular)
3748 /* Mark the symbol as undefined, rather than as defined in
3749 the .plt section. Leave the value alone. */
3750 sym->st_shndx = SHN_UNDEF;
3751 /* If the symbol is weak, we do need to clear the value.
3752 Otherwise, the PLT entry would provide a definition for
3753 the symbol even if the symbol wasn't defined anywhere,
3754 and so the symbol would never be NULL. */
3755 if (!h->ref_regular_nonweak)
3760 if (h->got.offset != (bfd_vma) -1
3761 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
3762 && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
3766 Elf_Internal_Rela rela;
3768 /* This symbol has an entry in the GOT. Set it up. */
3770 sgot = htab->elf.sgot;
3771 srela = htab->elf.srelgot;
3772 BFD_ASSERT (sgot != NULL && srela != NULL);
3774 rela.r_offset = (sgot->output_section->vma
3775 + sgot->output_offset
3776 + (h->got.offset &~ (bfd_vma) 1));
3778 /* If this is a -Bsymbolic link, and the symbol is defined
3779 locally, we just want to emit a RELATIVE reloc. Likewise if
3780 the symbol was forced to be local because of a version file.
3781 The entry in the global offset table will already have been
3782 initialized in the relocate_section function. */
3784 && SYMBOL_REFERENCES_LOCAL (info, h))
3786 asection *sec = h->root.u.def.section;
3787 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
3788 rela.r_addend = (h->root.u.def.value
3789 + sec->output_section->vma
3790 + sec->output_offset);
3794 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
3798 SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
3799 sgot->contents + (h->got.offset & ~(bfd_vma) 1));
3800 sparc_elf_append_rela (output_bfd, srela, &rela);
3806 Elf_Internal_Rela rela;
3808 /* This symbols needs a copy reloc. Set it up. */
3809 BFD_ASSERT (h->dynindx != -1);
3811 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3813 BFD_ASSERT (s != NULL);
3815 rela.r_offset = (h->root.u.def.value
3816 + h->root.u.def.section->output_section->vma
3817 + h->root.u.def.section->output_offset);
3818 rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
3820 sparc_elf_append_rela (output_bfd, s, &rela);
3823 /* Mark some specially defined symbols as absolute. On VxWorks,
3824 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
3825 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
3826 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3827 || (!htab->is_vxworks
3828 && (h == htab->elf.hgot || h == htab->elf.hplt)))
3829 sym->st_shndx = SHN_ABS;
3834 /* Finish up the dynamic sections. */
3837 sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
3838 bfd *dynobj, asection *sdyn,
3839 asection *splt ATTRIBUTE_UNUSED)
3841 struct _bfd_sparc_elf_link_hash_table *htab;
3842 const struct elf_backend_data *bed;
3843 bfd_byte *dyncon, *dynconend;
3845 int stt_regidx = -1;
3846 bfd_boolean abi_64_p;
3848 htab = _bfd_sparc_elf_hash_table (info);
3849 BFD_ASSERT (htab != NULL);
3850 bed = get_elf_backend_data (output_bfd);
3851 dynsize = bed->s->sizeof_dyn;
3852 dynconend = sdyn->contents + sdyn->size;
3853 abi_64_p = ABI_64_P (output_bfd);
3854 for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
3856 Elf_Internal_Dyn dyn;
3860 bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
3862 if (htab->is_vxworks && dyn.d_tag == DT_RELASZ)
3864 /* On VxWorks, DT_RELASZ should not include the relocations
3866 if (htab->elf.srelplt)
3868 dyn.d_un.d_val -= htab->elf.srelplt->size;
3869 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
3872 else if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
3874 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
3875 not to the start of the PLT. */
3876 if (htab->elf.sgotplt)
3878 dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma
3879 + htab->elf.sgotplt->output_offset);
3880 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
3883 else if (htab->is_vxworks
3884 && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
3885 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
3886 else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
3888 if (stt_regidx == -1)
3891 _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
3892 if (stt_regidx == -1)
3895 dyn.d_un.d_val = stt_regidx++;
3896 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
3902 case DT_PLTGOT: name = ".plt"; size = FALSE; break;
3903 case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break;
3904 case DT_JMPREL: name = ".rela.plt"; size = FALSE; break;
3905 default: name = NULL; size = FALSE; break;
3912 s = bfd_get_section_by_name (output_bfd, name);
3918 dyn.d_un.d_ptr = s->vma;
3920 dyn.d_un.d_val = s->size;
3922 bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
3929 /* Install the first PLT entry in a VxWorks executable and make sure that
3930 .rela.plt.unloaded relocations have the correct symbol indexes. */
3933 sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
3935 struct _bfd_sparc_elf_link_hash_table *htab;
3936 Elf_Internal_Rela rela;
3940 htab = _bfd_sparc_elf_hash_table (info);
3941 BFD_ASSERT (htab != NULL);
3943 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
3944 got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
3945 + htab->elf.hgot->root.u.def.section->output_offset
3946 + htab->elf.hgot->root.u.def.value);
3948 /* Install the initial PLT entry. */
3949 bfd_put_32 (output_bfd,
3950 sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
3951 htab->elf.splt->contents);
3952 bfd_put_32 (output_bfd,
3953 sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
3954 htab->elf.splt->contents + 4);
3955 bfd_put_32 (output_bfd,
3956 sparc_vxworks_exec_plt0_entry[2],
3957 htab->elf.splt->contents + 8);
3958 bfd_put_32 (output_bfd,
3959 sparc_vxworks_exec_plt0_entry[3],
3960 htab->elf.splt->contents + 12);
3961 bfd_put_32 (output_bfd,
3962 sparc_vxworks_exec_plt0_entry[4],
3963 htab->elf.splt->contents + 16);
3965 loc = htab->srelplt2->contents;
3967 /* Add an unloaded relocation for the initial entry's "sethi". */
3968 rela.r_offset = (htab->elf.splt->output_section->vma
3969 + htab->elf.splt->output_offset);
3970 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
3972 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3973 loc += sizeof (Elf32_External_Rela);
3975 /* Likewise the following "or". */
3977 rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
3978 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3979 loc += sizeof (Elf32_External_Rela);
3981 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
3982 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
3983 in which symbols were output. */
3984 while (loc < htab->srelplt2->contents + htab->srelplt2->size)
3986 Elf_Internal_Rela rel;
3988 /* The entry's initial "sethi" (against _G_O_T_). */
3989 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
3990 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
3991 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
3992 loc += sizeof (Elf32_External_Rela);
3994 /* The following "or" (also against _G_O_T_). */
3995 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
3996 rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
3997 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
3998 loc += sizeof (Elf32_External_Rela);
4000 /* The .got.plt entry (against _P_L_T_). */
4001 bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
4002 rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
4003 bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
4004 loc += sizeof (Elf32_External_Rela);
4008 /* Install the first PLT entry in a VxWorks shared object. */
4011 sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
4013 struct _bfd_sparc_elf_link_hash_table *htab;
4016 htab = _bfd_sparc_elf_hash_table (info);
4017 BFD_ASSERT (htab != NULL);
4019 for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
4020 bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
4021 htab->elf.splt->contents + i * 4);
4025 _bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
4029 struct _bfd_sparc_elf_link_hash_table *htab;
4031 htab = _bfd_sparc_elf_hash_table (info);
4032 BFD_ASSERT (htab != NULL);
4033 dynobj = htab->elf.dynobj;
4035 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4037 if (elf_hash_table (info)->dynamic_sections_created)
4041 splt = bfd_get_section_by_name (dynobj, ".plt");
4042 BFD_ASSERT (splt != NULL && sdyn != NULL);
4044 if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
4047 /* Initialize the contents of the .plt section. */
4050 if (htab->is_vxworks)
4053 sparc_vxworks_finish_shared_plt (output_bfd, info);
4055 sparc_vxworks_finish_exec_plt (output_bfd, info);
4059 memset (splt->contents, 0, htab->plt_header_size);
4060 if (!ABI_64_P (output_bfd))
4061 bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
4062 splt->contents + splt->size - 4);
4066 elf_section_data (splt->output_section)->this_hdr.sh_entsize
4067 = (htab->is_vxworks || !ABI_64_P (output_bfd))
4068 ? 0 : htab->plt_entry_size;
4071 /* Set the first entry in the global offset table to the address of
4072 the dynamic section. */
4073 if (htab->elf.sgot && htab->elf.sgot->size > 0)
4075 bfd_vma val = (sdyn ?
4076 sdyn->output_section->vma + sdyn->output_offset :
4079 SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents);
4083 elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize =
4084 SPARC_ELF_WORD_BYTES (htab);
4090 /* Set the right machine number for a SPARC ELF file. */
4093 _bfd_sparc_elf_object_p (bfd *abfd)
4095 if (ABI_64_P (abfd))
4097 unsigned long mach = bfd_mach_sparc_v9;
4099 if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4100 mach = bfd_mach_sparc_v9b;
4101 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4102 mach = bfd_mach_sparc_v9a;
4103 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
4107 if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
4109 if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
4110 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4111 bfd_mach_sparc_v8plusb);
4112 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
4113 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4114 bfd_mach_sparc_v8plusa);
4115 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
4116 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4117 bfd_mach_sparc_v8plus);
4121 else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
4122 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
4123 bfd_mach_sparc_sparclite_le);
4125 return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
4129 /* Return address for Ith PLT stub in section PLT, for relocation REL
4130 or (bfd_vma) -1 if it should not be included. */
4133 _bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
4135 if (ABI_64_P (plt->owner))
4139 i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
4140 if (i < PLT64_LARGE_THRESHOLD)
4141 return plt->vma + i * PLT64_ENTRY_SIZE;
4143 j = (i - PLT64_LARGE_THRESHOLD) % 160;
4145 return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
4148 return rel->address;