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22b75d0a | 1 | /* SPARC-specific support for ELF |
4b95cf5c | 2 | Copyright (C) 2005-2014 Free Software Foundation, Inc. |
22b75d0a DM |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 8 | the Free Software Foundation; either version 3 of the License, or |
22b75d0a DM |
9 | (at your option) any later version. |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
19 | MA 02110-1301, USA. */ | |
20 | ||
22b75d0a DM |
21 | |
22 | /* This file handles functionality common to the different SPARC ABI's. */ | |
23 | ||
22b75d0a | 24 | #include "sysdep.h" |
3db64b00 | 25 | #include "bfd.h" |
22b75d0a DM |
26 | #include "bfdlink.h" |
27 | #include "libbfd.h" | |
910600e9 | 28 | #include "libiberty.h" |
22b75d0a DM |
29 | #include "elf-bfd.h" |
30 | #include "elf/sparc.h" | |
31 | #include "opcode/sparc.h" | |
32 | #include "elfxx-sparc.h" | |
910600e9 | 33 | #include "elf-vxworks.h" |
d0c9aeb3 DM |
34 | #include "objalloc.h" |
35 | #include "hashtab.h" | |
22b75d0a DM |
36 | |
37 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */ | |
38 | #define MINUS_ONE (~ (bfd_vma) 0) | |
39 | ||
40 | #define ABI_64_P(abfd) \ | |
41 | (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64) | |
42 | ||
43 | /* The relocation "howto" table. */ | |
44 | ||
45 | /* Utility for performing the standard initial work of an instruction | |
46 | relocation. | |
47 | *PRELOCATION will contain the relocated item. | |
48 | *PINSN will contain the instruction from the input stream. | |
49 | If the result is `bfd_reloc_other' the caller can continue with | |
50 | performing the relocation. Otherwise it must stop and return the | |
51 | value to its caller. */ | |
52 | ||
53 | static bfd_reloc_status_type | |
54 | init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
2c3fc389 | 55 | void * data, asection *input_section, bfd *output_bfd, |
22b75d0a DM |
56 | bfd_vma *prelocation, bfd_vma *pinsn) |
57 | { | |
58 | bfd_vma relocation; | |
59 | reloc_howto_type *howto = reloc_entry->howto; | |
60 | ||
61 | if (output_bfd != (bfd *) NULL | |
62 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
63 | && (! howto->partial_inplace | |
64 | || reloc_entry->addend == 0)) | |
65 | { | |
66 | reloc_entry->address += input_section->output_offset; | |
67 | return bfd_reloc_ok; | |
68 | } | |
69 | ||
70 | /* This works because partial_inplace is FALSE. */ | |
71 | if (output_bfd != NULL) | |
72 | return bfd_reloc_continue; | |
73 | ||
74 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
75 | return bfd_reloc_outofrange; | |
76 | ||
77 | relocation = (symbol->value | |
78 | + symbol->section->output_section->vma | |
79 | + symbol->section->output_offset); | |
80 | relocation += reloc_entry->addend; | |
81 | if (howto->pc_relative) | |
82 | { | |
83 | relocation -= (input_section->output_section->vma | |
84 | + input_section->output_offset); | |
85 | relocation -= reloc_entry->address; | |
86 | } | |
87 | ||
88 | *prelocation = relocation; | |
89 | *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
90 | return bfd_reloc_other; | |
91 | } | |
92 | ||
93 | /* For unsupported relocs. */ | |
94 | ||
95 | static bfd_reloc_status_type | |
96 | sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
97 | arelent *reloc_entry ATTRIBUTE_UNUSED, | |
98 | asymbol *symbol ATTRIBUTE_UNUSED, | |
2c3fc389 | 99 | void * data ATTRIBUTE_UNUSED, |
22b75d0a DM |
100 | asection *input_section ATTRIBUTE_UNUSED, |
101 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
102 | char **error_message ATTRIBUTE_UNUSED) | |
103 | { | |
104 | return bfd_reloc_notsupported; | |
105 | } | |
106 | ||
107 | /* Handle the WDISP16 reloc. */ | |
108 | ||
109 | static bfd_reloc_status_type | |
110 | sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
2c3fc389 | 111 | void * data, asection *input_section, bfd *output_bfd, |
22b75d0a DM |
112 | char **error_message ATTRIBUTE_UNUSED) |
113 | { | |
114 | bfd_vma relocation; | |
115 | bfd_vma insn; | |
116 | bfd_reloc_status_type status; | |
117 | ||
118 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
119 | input_section, output_bfd, &relocation, &insn); | |
120 | if (status != bfd_reloc_other) | |
121 | return status; | |
122 | ||
123 | insn &= ~ (bfd_vma) 0x303fff; | |
124 | insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff); | |
125 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
126 | ||
127 | if ((bfd_signed_vma) relocation < - 0x40000 | |
128 | || (bfd_signed_vma) relocation > 0x3ffff) | |
129 | return bfd_reloc_overflow; | |
130 | else | |
131 | return bfd_reloc_ok; | |
132 | } | |
133 | ||
2615994e DM |
134 | /* Handle the WDISP10 reloc. */ |
135 | ||
136 | static bfd_reloc_status_type | |
137 | sparc_elf_wdisp10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
2c3fc389 | 138 | void * data, asection *input_section, bfd *output_bfd, |
2615994e DM |
139 | char **error_message ATTRIBUTE_UNUSED) |
140 | { | |
141 | bfd_vma relocation; | |
142 | bfd_vma insn; | |
143 | bfd_reloc_status_type status; | |
144 | ||
145 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
146 | input_section, output_bfd, &relocation, &insn); | |
147 | if (status != bfd_reloc_other) | |
148 | return status; | |
149 | ||
150 | insn &= ~ (bfd_vma) 0x181fe0; | |
151 | insn |= (((relocation >> 2) & 0x300) << 11) | |
152 | | (((relocation >> 2) & 0xff) << 5); | |
153 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
154 | ||
155 | if ((bfd_signed_vma) relocation < - 0x1000 | |
156 | || (bfd_signed_vma) relocation > 0xfff) | |
157 | return bfd_reloc_overflow; | |
158 | else | |
159 | return bfd_reloc_ok; | |
160 | } | |
161 | ||
22b75d0a DM |
162 | /* Handle the HIX22 reloc. */ |
163 | ||
164 | static bfd_reloc_status_type | |
165 | sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
2c3fc389 | 166 | void * data, asection *input_section, bfd *output_bfd, |
22b75d0a DM |
167 | char **error_message ATTRIBUTE_UNUSED) |
168 | { | |
169 | bfd_vma relocation; | |
170 | bfd_vma insn; | |
171 | bfd_reloc_status_type status; | |
172 | ||
173 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
174 | input_section, output_bfd, &relocation, &insn); | |
175 | if (status != bfd_reloc_other) | |
176 | return status; | |
177 | ||
178 | relocation ^= MINUS_ONE; | |
179 | insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); | |
180 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
181 | ||
182 | if ((relocation & ~ (bfd_vma) 0xffffffff) != 0) | |
183 | return bfd_reloc_overflow; | |
184 | else | |
185 | return bfd_reloc_ok; | |
186 | } | |
187 | ||
188 | /* Handle the LOX10 reloc. */ | |
189 | ||
190 | static bfd_reloc_status_type | |
191 | sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
2c3fc389 | 192 | void * data, asection *input_section, bfd *output_bfd, |
22b75d0a DM |
193 | char **error_message ATTRIBUTE_UNUSED) |
194 | { | |
195 | bfd_vma relocation; | |
196 | bfd_vma insn; | |
197 | bfd_reloc_status_type status; | |
198 | ||
199 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
200 | input_section, output_bfd, &relocation, &insn); | |
201 | if (status != bfd_reloc_other) | |
202 | return status; | |
203 | ||
204 | insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff); | |
205 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
206 | ||
207 | return bfd_reloc_ok; | |
208 | } | |
209 | ||
210 | static reloc_howto_type _bfd_sparc_elf_howto_table[] = | |
211 | { | |
212 | HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE), | |
213 | HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE), | |
214 | HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE), | |
215 | HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE), | |
216 | HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE), | |
217 | HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE), | |
218 | HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE), | |
219 | HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE), | |
220 | HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE), | |
221 | HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE), | |
222 | HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE), | |
223 | HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE), | |
224 | HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE), | |
225 | HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE), | |
226 | HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE), | |
227 | HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE), | |
228 | HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE), | |
229 | HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE), | |
230 | HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE), | |
231 | HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE), | |
232 | HOWTO(R_SPARC_GLOB_DAT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",FALSE,0,0x00000000,TRUE), | |
233 | HOWTO(R_SPARC_JMP_SLOT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",FALSE,0,0x00000000,TRUE), | |
234 | HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE), | |
235 | HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE), | |
236 | HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE), | |
237 | HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE), | |
238 | HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE), | |
239 | HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE), | |
240 | HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE), | |
241 | HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE), | |
242 | HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE), | |
243 | HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE), | |
244 | HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE), | |
245 | HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE), | |
246 | HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE), | |
247 | HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE), | |
248 | HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE), | |
249 | HOWTO(R_SPARC_PC_HH22, 42,2,22,TRUE, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", FALSE,0,0x003fffff,TRUE), | |
250 | HOWTO(R_SPARC_PC_HM10, 32,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", FALSE,0,0x000003ff,TRUE), | |
251 | HOWTO(R_SPARC_PC_LM22, 10,2,22,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", FALSE,0,0x003fffff,TRUE), | |
252 | HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE), | |
253 | HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE), | |
254 | HOWTO(R_SPARC_UNUSED_42, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",FALSE,0,0x00000000,TRUE), | |
255 | HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE), | |
256 | HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE), | |
257 | HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE), | |
258 | HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE), | |
259 | HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE), | |
260 | HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE), | |
261 | HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE), | |
262 | HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE), | |
263 | HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE), | |
264 | HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE), | |
265 | HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE), | |
266 | HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE), | |
267 | HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE), | |
268 | HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE), | |
269 | HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE), | |
270 | HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",FALSE,0,0x00000000,TRUE), | |
271 | HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE), | |
272 | HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE), | |
273 | HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE), | |
274 | HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",FALSE,0,0x00000000,TRUE), | |
275 | HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE), | |
276 | HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE), | |
277 | HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE), | |
278 | HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",FALSE,0,0x00000000,TRUE), | |
279 | HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE), | |
280 | HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE), | |
281 | HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",FALSE,0,0x00000000,TRUE), | |
282 | HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",FALSE,0,0x00000000,TRUE), | |
283 | HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",FALSE,0,0x00000000,TRUE), | |
284 | HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE), | |
285 | HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE), | |
286 | HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",FALSE,0,0x00000000,TRUE), | |
287 | HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",FALSE,0,0x00000000,TRUE), | |
288 | HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE), | |
289 | HOWTO(R_SPARC_TLS_DTPOFF64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",FALSE,0,MINUS_ONE,TRUE), | |
290 | HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE), | |
739f7f82 DM |
291 | HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE), |
292 | HOWTO(R_SPARC_GOTDATA_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",FALSE,0,0x003fffff, FALSE), | |
293 | HOWTO(R_SPARC_GOTDATA_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",FALSE,0,0x000003ff, FALSE), | |
294 | HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",FALSE,0,0x003fffff, FALSE), | |
295 | HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",FALSE,0,0x000003ff, FALSE), | |
296 | HOWTO(R_SPARC_GOTDATA_OP,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOTDATA_OP",FALSE,0,0x00000000,TRUE), | |
2615994e DM |
297 | HOWTO(R_SPARC_H34,12,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc,"R_SPARC_H34",FALSE,0,0x003fffff,FALSE), |
298 | HOWTO(R_SPARC_SIZE32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE32",FALSE,0,0xffffffff,TRUE), | |
299 | HOWTO(R_SPARC_SIZE64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE64",FALSE,0,MINUS_ONE, TRUE), | |
300 | HOWTO(R_SPARC_WDISP10,2,2,10,TRUE, 0,complain_overflow_signed,sparc_elf_wdisp10_reloc,"R_SPARC_WDISP10",FALSE,0,0x00000000,TRUE), | |
22b75d0a | 301 | }; |
d0c9aeb3 DM |
302 | static reloc_howto_type sparc_jmp_irel_howto = |
303 | HOWTO(R_SPARC_JMP_IREL, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_IREL",FALSE,0,0x00000000,TRUE); | |
304 | static reloc_howto_type sparc_irelative_howto = | |
305 | HOWTO(R_SPARC_IRELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_IRELATIVE",FALSE,0,0x00000000,TRUE); | |
22b75d0a DM |
306 | static reloc_howto_type sparc_vtinherit_howto = |
307 | HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE); | |
308 | static reloc_howto_type sparc_vtentry_howto = | |
309 | HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", FALSE,0,0, FALSE); | |
310 | static reloc_howto_type sparc_rev32_howto = | |
311 | HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE); | |
312 | ||
22b75d0a DM |
313 | reloc_howto_type * |
314 | _bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
315 | bfd_reloc_code_real_type code) | |
316 | { | |
679b7c76 DM |
317 | /* We explicitly handle each relocation type in the switch |
318 | instead of using a lookup table for efficiency. */ | |
22b75d0a DM |
319 | switch (code) |
320 | { | |
679b7c76 DM |
321 | case BFD_RELOC_NONE: |
322 | return &_bfd_sparc_elf_howto_table[R_SPARC_NONE]; | |
323 | ||
324 | case BFD_RELOC_8: | |
325 | return &_bfd_sparc_elf_howto_table[R_SPARC_8]; | |
326 | ||
327 | case BFD_RELOC_16: | |
328 | return &_bfd_sparc_elf_howto_table[R_SPARC_16]; | |
329 | ||
330 | case BFD_RELOC_32: | |
331 | return &_bfd_sparc_elf_howto_table[R_SPARC_32]; | |
332 | ||
333 | case BFD_RELOC_8_PCREL: | |
334 | return &_bfd_sparc_elf_howto_table[R_SPARC_DISP8]; | |
335 | ||
336 | case BFD_RELOC_16_PCREL: | |
337 | return &_bfd_sparc_elf_howto_table[R_SPARC_DISP16]; | |
338 | ||
339 | case BFD_RELOC_32_PCREL: | |
340 | return &_bfd_sparc_elf_howto_table[R_SPARC_DISP32]; | |
341 | ||
342 | case BFD_RELOC_32_PCREL_S2: | |
343 | return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP30]; | |
344 | ||
345 | case BFD_RELOC_SPARC_WDISP22: | |
346 | return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP22]; | |
347 | ||
348 | case BFD_RELOC_HI22: | |
349 | return &_bfd_sparc_elf_howto_table[R_SPARC_HI22]; | |
350 | ||
351 | case BFD_RELOC_SPARC22: | |
352 | return &_bfd_sparc_elf_howto_table[R_SPARC_22]; | |
353 | ||
354 | case BFD_RELOC_SPARC13: | |
355 | return &_bfd_sparc_elf_howto_table[R_SPARC_13]; | |
356 | ||
357 | case BFD_RELOC_LO10: | |
358 | return &_bfd_sparc_elf_howto_table[R_SPARC_LO10]; | |
359 | ||
360 | case BFD_RELOC_SPARC_GOT10: | |
361 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOT10]; | |
362 | ||
363 | case BFD_RELOC_SPARC_GOT13: | |
364 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOT13]; | |
365 | ||
366 | case BFD_RELOC_SPARC_GOT22: | |
367 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOT22]; | |
368 | ||
369 | case BFD_RELOC_SPARC_PC10: | |
370 | return &_bfd_sparc_elf_howto_table[R_SPARC_PC10]; | |
371 | ||
372 | case BFD_RELOC_SPARC_PC22: | |
373 | return &_bfd_sparc_elf_howto_table[R_SPARC_PC22]; | |
374 | ||
375 | case BFD_RELOC_SPARC_WPLT30: | |
376 | return &_bfd_sparc_elf_howto_table[R_SPARC_WPLT30]; | |
377 | ||
378 | case BFD_RELOC_SPARC_COPY: | |
379 | return &_bfd_sparc_elf_howto_table[R_SPARC_COPY]; | |
380 | ||
381 | case BFD_RELOC_SPARC_GLOB_DAT: | |
382 | return &_bfd_sparc_elf_howto_table[R_SPARC_GLOB_DAT]; | |
383 | ||
384 | case BFD_RELOC_SPARC_JMP_SLOT: | |
385 | return &_bfd_sparc_elf_howto_table[R_SPARC_JMP_SLOT]; | |
386 | ||
387 | case BFD_RELOC_SPARC_RELATIVE: | |
388 | return &_bfd_sparc_elf_howto_table[R_SPARC_RELATIVE]; | |
389 | ||
390 | case BFD_RELOC_SPARC_UA32: | |
391 | return &_bfd_sparc_elf_howto_table[R_SPARC_UA32]; | |
392 | ||
393 | case BFD_RELOC_SPARC_PLT32: | |
394 | return &_bfd_sparc_elf_howto_table[R_SPARC_PLT32]; | |
395 | ||
396 | case BFD_RELOC_SPARC_10: | |
397 | return &_bfd_sparc_elf_howto_table[R_SPARC_10]; | |
398 | ||
399 | case BFD_RELOC_SPARC_11: | |
400 | return &_bfd_sparc_elf_howto_table[R_SPARC_11]; | |
401 | ||
402 | case BFD_RELOC_SPARC_64: | |
403 | return &_bfd_sparc_elf_howto_table[R_SPARC_64]; | |
404 | ||
405 | case BFD_RELOC_SPARC_OLO10: | |
406 | return &_bfd_sparc_elf_howto_table[R_SPARC_OLO10]; | |
407 | ||
408 | case BFD_RELOC_SPARC_HH22: | |
409 | return &_bfd_sparc_elf_howto_table[R_SPARC_HH22]; | |
410 | ||
411 | case BFD_RELOC_SPARC_HM10: | |
412 | return &_bfd_sparc_elf_howto_table[R_SPARC_HM10]; | |
413 | ||
414 | case BFD_RELOC_SPARC_LM22: | |
415 | return &_bfd_sparc_elf_howto_table[R_SPARC_LM22]; | |
416 | ||
417 | case BFD_RELOC_SPARC_PC_HH22: | |
418 | return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HH22]; | |
419 | ||
420 | case BFD_RELOC_SPARC_PC_HM10: | |
421 | return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HM10]; | |
422 | ||
423 | case BFD_RELOC_SPARC_PC_LM22: | |
424 | return &_bfd_sparc_elf_howto_table[R_SPARC_PC_LM22]; | |
425 | ||
426 | case BFD_RELOC_SPARC_WDISP16: | |
427 | return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP16]; | |
428 | ||
429 | case BFD_RELOC_SPARC_WDISP19: | |
430 | return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP19]; | |
431 | ||
432 | case BFD_RELOC_SPARC_7: | |
433 | return &_bfd_sparc_elf_howto_table[R_SPARC_7]; | |
434 | ||
435 | case BFD_RELOC_SPARC_5: | |
436 | return &_bfd_sparc_elf_howto_table[R_SPARC_5]; | |
437 | ||
438 | case BFD_RELOC_SPARC_6: | |
439 | return &_bfd_sparc_elf_howto_table[R_SPARC_6]; | |
440 | ||
441 | case BFD_RELOC_SPARC_DISP64: | |
442 | return &_bfd_sparc_elf_howto_table[R_SPARC_DISP64]; | |
443 | ||
444 | case BFD_RELOC_SPARC_PLT64: | |
445 | return &_bfd_sparc_elf_howto_table[R_SPARC_PLT64]; | |
446 | ||
447 | case BFD_RELOC_SPARC_HIX22: | |
448 | return &_bfd_sparc_elf_howto_table[R_SPARC_HIX22]; | |
449 | ||
450 | case BFD_RELOC_SPARC_LOX10: | |
451 | return &_bfd_sparc_elf_howto_table[R_SPARC_LOX10]; | |
452 | ||
453 | case BFD_RELOC_SPARC_H44: | |
454 | return &_bfd_sparc_elf_howto_table[R_SPARC_H44]; | |
455 | ||
456 | case BFD_RELOC_SPARC_M44: | |
457 | return &_bfd_sparc_elf_howto_table[R_SPARC_M44]; | |
458 | ||
459 | case BFD_RELOC_SPARC_L44: | |
460 | return &_bfd_sparc_elf_howto_table[R_SPARC_L44]; | |
461 | ||
462 | case BFD_RELOC_SPARC_REGISTER: | |
463 | return &_bfd_sparc_elf_howto_table[R_SPARC_REGISTER]; | |
464 | ||
465 | case BFD_RELOC_SPARC_UA64: | |
466 | return &_bfd_sparc_elf_howto_table[R_SPARC_UA64]; | |
467 | ||
468 | case BFD_RELOC_SPARC_UA16: | |
469 | return &_bfd_sparc_elf_howto_table[R_SPARC_UA16]; | |
470 | ||
471 | case BFD_RELOC_SPARC_TLS_GD_HI22: | |
472 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_HI22]; | |
473 | ||
474 | case BFD_RELOC_SPARC_TLS_GD_LO10: | |
475 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_LO10]; | |
476 | ||
477 | case BFD_RELOC_SPARC_TLS_GD_ADD: | |
478 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_ADD]; | |
479 | ||
480 | case BFD_RELOC_SPARC_TLS_GD_CALL: | |
481 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_CALL]; | |
482 | ||
483 | case BFD_RELOC_SPARC_TLS_LDM_HI22: | |
484 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_HI22]; | |
485 | ||
486 | case BFD_RELOC_SPARC_TLS_LDM_LO10: | |
487 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_LO10]; | |
488 | ||
489 | case BFD_RELOC_SPARC_TLS_LDM_ADD: | |
490 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_ADD]; | |
491 | ||
492 | case BFD_RELOC_SPARC_TLS_LDM_CALL: | |
493 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_CALL]; | |
494 | ||
495 | case BFD_RELOC_SPARC_TLS_LDO_HIX22: | |
496 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_HIX22]; | |
497 | ||
498 | case BFD_RELOC_SPARC_TLS_LDO_LOX10: | |
499 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_LOX10]; | |
500 | ||
501 | case BFD_RELOC_SPARC_TLS_LDO_ADD: | |
502 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_ADD]; | |
503 | ||
504 | case BFD_RELOC_SPARC_TLS_IE_HI22: | |
505 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_HI22]; | |
506 | ||
507 | case BFD_RELOC_SPARC_TLS_IE_LO10: | |
508 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LO10]; | |
509 | ||
510 | case BFD_RELOC_SPARC_TLS_IE_LD: | |
511 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LD]; | |
512 | ||
513 | case BFD_RELOC_SPARC_TLS_IE_LDX: | |
514 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LDX]; | |
515 | ||
516 | case BFD_RELOC_SPARC_TLS_IE_ADD: | |
517 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_ADD]; | |
518 | ||
519 | case BFD_RELOC_SPARC_TLS_LE_HIX22: | |
520 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_HIX22]; | |
521 | ||
522 | case BFD_RELOC_SPARC_TLS_LE_LOX10: | |
523 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_LOX10]; | |
524 | ||
525 | case BFD_RELOC_SPARC_TLS_DTPMOD32: | |
526 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD32]; | |
527 | ||
528 | case BFD_RELOC_SPARC_TLS_DTPMOD64: | |
529 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD64]; | |
530 | ||
531 | case BFD_RELOC_SPARC_TLS_DTPOFF32: | |
532 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF32]; | |
533 | ||
534 | case BFD_RELOC_SPARC_TLS_DTPOFF64: | |
535 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF64]; | |
536 | ||
537 | case BFD_RELOC_SPARC_TLS_TPOFF32: | |
538 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF32]; | |
539 | ||
540 | case BFD_RELOC_SPARC_TLS_TPOFF64: | |
541 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF64]; | |
542 | ||
543 | case BFD_RELOC_SPARC_GOTDATA_HIX22: | |
544 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_HIX22]; | |
545 | ||
546 | case BFD_RELOC_SPARC_GOTDATA_LOX10: | |
547 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_LOX10]; | |
548 | ||
549 | case BFD_RELOC_SPARC_GOTDATA_OP_HIX22: | |
550 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_HIX22]; | |
551 | ||
552 | case BFD_RELOC_SPARC_GOTDATA_OP_LOX10: | |
553 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_LOX10]; | |
554 | ||
555 | case BFD_RELOC_SPARC_GOTDATA_OP: | |
556 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP]; | |
557 | ||
2615994e DM |
558 | case BFD_RELOC_SPARC_H34: |
559 | return &_bfd_sparc_elf_howto_table[R_SPARC_H34]; | |
560 | ||
561 | case BFD_RELOC_SPARC_SIZE32: | |
562 | return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE32]; | |
563 | ||
564 | case BFD_RELOC_SPARC_SIZE64: | |
565 | return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE64]; | |
566 | ||
567 | case BFD_RELOC_SPARC_WDISP10: | |
568 | return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP10]; | |
569 | ||
d0c9aeb3 DM |
570 | case BFD_RELOC_SPARC_JMP_IREL: |
571 | return &sparc_jmp_irel_howto; | |
572 | ||
573 | case BFD_RELOC_SPARC_IRELATIVE: | |
574 | return &sparc_irelative_howto; | |
575 | ||
22b75d0a DM |
576 | case BFD_RELOC_VTABLE_INHERIT: |
577 | return &sparc_vtinherit_howto; | |
578 | ||
579 | case BFD_RELOC_VTABLE_ENTRY: | |
580 | return &sparc_vtentry_howto; | |
581 | ||
582 | case BFD_RELOC_SPARC_REV32: | |
583 | return &sparc_rev32_howto; | |
584 | ||
585 | default: | |
679b7c76 | 586 | break; |
22b75d0a DM |
587 | } |
588 | bfd_set_error (bfd_error_bad_value); | |
589 | return NULL; | |
590 | } | |
591 | ||
157090f7 AM |
592 | reloc_howto_type * |
593 | _bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
594 | const char *r_name) | |
595 | { | |
596 | unsigned int i; | |
597 | ||
598 | for (i = 0; | |
599 | i < (sizeof (_bfd_sparc_elf_howto_table) | |
600 | / sizeof (_bfd_sparc_elf_howto_table[0])); | |
601 | i++) | |
602 | if (_bfd_sparc_elf_howto_table[i].name != NULL | |
603 | && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0) | |
604 | return &_bfd_sparc_elf_howto_table[i]; | |
605 | ||
606 | if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0) | |
607 | return &sparc_vtinherit_howto; | |
608 | if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0) | |
609 | return &sparc_vtentry_howto; | |
610 | if (strcasecmp (sparc_rev32_howto.name, r_name) == 0) | |
611 | return &sparc_rev32_howto; | |
612 | ||
613 | return NULL; | |
614 | } | |
615 | ||
22b75d0a DM |
616 | reloc_howto_type * |
617 | _bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type) | |
618 | { | |
619 | switch (r_type) | |
620 | { | |
d0c9aeb3 DM |
621 | case R_SPARC_JMP_IREL: |
622 | return &sparc_jmp_irel_howto; | |
623 | ||
624 | case R_SPARC_IRELATIVE: | |
625 | return &sparc_irelative_howto; | |
626 | ||
22b75d0a DM |
627 | case R_SPARC_GNU_VTINHERIT: |
628 | return &sparc_vtinherit_howto; | |
629 | ||
630 | case R_SPARC_GNU_VTENTRY: | |
631 | return &sparc_vtentry_howto; | |
632 | ||
633 | case R_SPARC_REV32: | |
634 | return &sparc_rev32_howto; | |
635 | ||
636 | default: | |
d0fb9a8d JJ |
637 | if (r_type >= (unsigned int) R_SPARC_max_std) |
638 | { | |
639 | (*_bfd_error_handler) (_("invalid relocation type %d"), | |
640 | (int) r_type); | |
641 | r_type = R_SPARC_NONE; | |
642 | } | |
22b75d0a DM |
643 | return &_bfd_sparc_elf_howto_table[r_type]; |
644 | } | |
645 | } | |
646 | ||
647 | /* Both 32-bit and 64-bit sparc encode this in an identical manner, | |
648 | so just take advantage of that. */ | |
649 | #define SPARC_ELF_R_TYPE(r_info) \ | |
650 | ((r_info) & 0xff) | |
651 | ||
652 | void | |
653 | _bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, | |
654 | Elf_Internal_Rela *dst) | |
655 | { | |
656 | unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info); | |
657 | ||
658 | cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type); | |
659 | } | |
660 | \f | |
661 | ||
662 | /* The nop opcode we use. */ | |
663 | #define SPARC_NOP 0x01000000 | |
664 | ||
665 | #define SPARC_INSN_BYTES 4 | |
666 | ||
667 | /* The SPARC linker needs to keep track of the number of relocs that it | |
668 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
669 | This is so that it can later discard them if they are found to be | |
670 | unnecessary. We store the information in a field extending the | |
671 | regular ELF linker hash table. */ | |
672 | ||
673 | struct _bfd_sparc_elf_dyn_relocs | |
674 | { | |
675 | struct _bfd_sparc_elf_dyn_relocs *next; | |
676 | ||
677 | /* The input section of the reloc. */ | |
678 | asection *sec; | |
679 | ||
680 | /* Total number of relocs copied for the input section. */ | |
681 | bfd_size_type count; | |
682 | ||
683 | /* Number of pc-relative relocs copied for the input section. */ | |
684 | bfd_size_type pc_count; | |
685 | }; | |
686 | ||
687 | /* SPARC ELF linker hash entry. */ | |
688 | ||
689 | struct _bfd_sparc_elf_link_hash_entry | |
690 | { | |
691 | struct elf_link_hash_entry elf; | |
692 | ||
693 | /* Track dynamic relocs copied for this symbol. */ | |
694 | struct _bfd_sparc_elf_dyn_relocs *dyn_relocs; | |
695 | ||
696 | #define GOT_UNKNOWN 0 | |
697 | #define GOT_NORMAL 1 | |
698 | #define GOT_TLS_GD 2 | |
699 | #define GOT_TLS_IE 3 | |
700 | unsigned char tls_type; | |
701 | }; | |
702 | ||
703 | #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent)) | |
704 | ||
705 | struct _bfd_sparc_elf_obj_tdata | |
706 | { | |
707 | struct elf_obj_tdata root; | |
708 | ||
709 | /* tls_type for each local got entry. */ | |
710 | char *local_got_tls_type; | |
711 | ||
712 | /* TRUE if TLS GD relocs has been seen for this object. */ | |
713 | bfd_boolean has_tlsgd; | |
714 | }; | |
715 | ||
716 | #define _bfd_sparc_elf_tdata(abfd) \ | |
717 | ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any) | |
718 | ||
719 | #define _bfd_sparc_elf_local_got_tls_type(abfd) \ | |
720 | (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type) | |
721 | ||
0ffa91dd NC |
722 | #define is_sparc_elf(bfd) \ |
723 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
724 | && elf_tdata (bfd) != NULL \ | |
4dfe6ac6 | 725 | && elf_object_id (bfd) == SPARC_ELF_DATA) |
0ffa91dd | 726 | |
22b75d0a DM |
727 | bfd_boolean |
728 | _bfd_sparc_elf_mkobject (bfd *abfd) | |
729 | { | |
0ffa91dd | 730 | return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata), |
4dfe6ac6 | 731 | SPARC_ELF_DATA); |
22b75d0a DM |
732 | } |
733 | ||
734 | static void | |
91d6fa6a | 735 | sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr) |
22b75d0a | 736 | { |
91d6fa6a | 737 | bfd_put_32 (abfd, val, ptr); |
22b75d0a DM |
738 | } |
739 | ||
740 | static void | |
91d6fa6a | 741 | sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr) |
22b75d0a | 742 | { |
91d6fa6a | 743 | bfd_put_64 (abfd, val, ptr); |
22b75d0a DM |
744 | } |
745 | ||
746 | static void | |
39817122 | 747 | sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel) |
22b75d0a | 748 | { |
39817122 RS |
749 | const struct elf_backend_data *bed; |
750 | bfd_byte *loc; | |
22b75d0a | 751 | |
39817122 RS |
752 | bed = get_elf_backend_data (abfd); |
753 | loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela); | |
754 | bed->s->swap_reloca_out (abfd, rel, loc); | |
22b75d0a DM |
755 | } |
756 | ||
757 | static bfd_vma | |
e459dc7b | 758 | sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED, |
91d6fa6a | 759 | bfd_vma rel_index ATTRIBUTE_UNUSED, |
e459dc7b | 760 | bfd_vma type ATTRIBUTE_UNUSED) |
22b75d0a | 761 | { |
91d6fa6a | 762 | return ELF64_R_INFO (rel_index, |
22b75d0a DM |
763 | (in_rel ? |
764 | ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info), | |
765 | type) : type)); | |
766 | } | |
767 | ||
768 | static bfd_vma | |
769 | sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED, | |
91d6fa6a | 770 | bfd_vma rel_index, bfd_vma type) |
22b75d0a | 771 | { |
91d6fa6a | 772 | return ELF32_R_INFO (rel_index, type); |
22b75d0a DM |
773 | } |
774 | ||
775 | static bfd_vma | |
776 | sparc_elf_r_symndx_64 (bfd_vma r_info) | |
777 | { | |
e8be8da4 DM |
778 | bfd_vma r_symndx = ELF32_R_SYM (r_info); |
779 | return (r_symndx >> 24); | |
22b75d0a DM |
780 | } |
781 | ||
782 | static bfd_vma | |
783 | sparc_elf_r_symndx_32 (bfd_vma r_info) | |
784 | { | |
785 | return ELF32_R_SYM (r_info); | |
786 | } | |
787 | ||
788 | /* PLT/GOT stuff */ | |
789 | ||
790 | #define PLT32_ENTRY_SIZE 12 | |
791 | #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE) | |
792 | ||
793 | /* The first four entries in a 32-bit procedure linkage table are reserved, | |
794 | and the initial contents are unimportant (we zero them out). | |
795 | Subsequent entries look like this. See the SVR4 ABI SPARC | |
796 | supplement to see how this works. */ | |
797 | ||
798 | /* sethi %hi(.-.plt0),%g1. We fill in the address later. */ | |
799 | #define PLT32_ENTRY_WORD0 0x03000000 | |
800 | /* b,a .plt0. We fill in the offset later. */ | |
801 | #define PLT32_ENTRY_WORD1 0x30800000 | |
802 | /* nop. */ | |
803 | #define PLT32_ENTRY_WORD2 SPARC_NOP | |
804 | ||
805 | static int | |
806 | sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset, | |
807 | bfd_vma max ATTRIBUTE_UNUSED, | |
808 | bfd_vma *r_offset) | |
809 | { | |
810 | bfd_put_32 (output_bfd, | |
811 | PLT32_ENTRY_WORD0 + offset, | |
812 | splt->contents + offset); | |
813 | bfd_put_32 (output_bfd, | |
814 | (PLT32_ENTRY_WORD1 | |
815 | + (((- (offset + 4)) >> 2) & 0x3fffff)), | |
816 | splt->contents + offset + 4); | |
817 | bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2, | |
818 | splt->contents + offset + 8); | |
819 | ||
820 | *r_offset = offset; | |
821 | ||
822 | return offset / PLT32_ENTRY_SIZE - 4; | |
823 | } | |
824 | ||
825 | /* Both the headers and the entries are icache aligned. */ | |
826 | #define PLT64_ENTRY_SIZE 32 | |
827 | #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE) | |
828 | #define PLT64_LARGE_THRESHOLD 32768 | |
829 | ||
830 | static int | |
831 | sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset, | |
832 | bfd_vma max, bfd_vma *r_offset) | |
833 | { | |
834 | unsigned char *entry = splt->contents + offset; | |
835 | const unsigned int nop = SPARC_NOP; | |
91d6fa6a | 836 | int plt_index; |
22b75d0a DM |
837 | |
838 | if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)) | |
839 | { | |
840 | unsigned int sethi, ba; | |
841 | ||
842 | *r_offset = offset; | |
843 | ||
91d6fa6a | 844 | plt_index = (offset / PLT64_ENTRY_SIZE); |
22b75d0a | 845 | |
91d6fa6a | 846 | sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE); |
22b75d0a DM |
847 | ba = 0x30680000 |
848 | | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff); | |
849 | ||
850 | bfd_put_32 (output_bfd, (bfd_vma) sethi, entry); | |
851 | bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4); | |
852 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8); | |
853 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12); | |
854 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16); | |
855 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20); | |
856 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24); | |
857 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28); | |
858 | } | |
859 | else | |
860 | { | |
861 | unsigned char *ptr; | |
862 | unsigned int ldx; | |
863 | int block, last_block, ofs, last_ofs, chunks_this_block; | |
864 | const int insn_chunk_size = (6 * 4); | |
865 | const int ptr_chunk_size = (1 * 8); | |
866 | const int entries_per_block = 160; | |
867 | const int block_size = entries_per_block * (insn_chunk_size | |
868 | + ptr_chunk_size); | |
869 | ||
870 | /* Entries 32768 and higher are grouped into blocks of 160. | |
871 | The blocks are further subdivided into 160 sequences of | |
872 | 6 instructions and 160 pointers. If a block does not require | |
873 | the full 160 entries, let's say it requires N, then there | |
874 | will be N sequences of 6 instructions and N pointers. */ | |
875 | ||
876 | offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE); | |
877 | max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE); | |
878 | ||
879 | block = offset / block_size; | |
880 | last_block = max / block_size; | |
881 | if (block != last_block) | |
882 | { | |
883 | chunks_this_block = 160; | |
884 | } | |
885 | else | |
886 | { | |
887 | last_ofs = max % block_size; | |
888 | chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size); | |
889 | } | |
890 | ||
891 | ofs = offset % block_size; | |
892 | ||
91d6fa6a | 893 | plt_index = (PLT64_LARGE_THRESHOLD + |
22b75d0a DM |
894 | (block * 160) + |
895 | (ofs / insn_chunk_size)); | |
896 | ||
897 | ptr = splt->contents | |
898 | + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE) | |
899 | + (block * block_size) | |
900 | + (chunks_this_block * insn_chunk_size) | |
901 | + (ofs / insn_chunk_size) * ptr_chunk_size; | |
902 | ||
903 | *r_offset = (bfd_vma) (ptr - splt->contents); | |
904 | ||
905 | ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff); | |
906 | ||
907 | /* mov %o7,%g5 | |
908 | call .+8 | |
909 | nop | |
910 | ldx [%o7+P],%g1 | |
911 | jmpl %o7+%g1,%g1 | |
912 | mov %g5,%o7 */ | |
913 | bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry); | |
914 | bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4); | |
915 | bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8); | |
916 | bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12); | |
917 | bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16); | |
918 | bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20); | |
919 | ||
920 | bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr); | |
921 | } | |
922 | ||
91d6fa6a | 923 | return plt_index - 4; |
22b75d0a DM |
924 | } |
925 | ||
910600e9 RS |
926 | /* The format of the first PLT entry in a VxWorks executable. */ |
927 | static const bfd_vma sparc_vxworks_exec_plt0_entry[] = | |
928 | { | |
929 | 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */ | |
930 | 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */ | |
931 | 0xc4008000, /* ld [ %g2 ], %g2 */ | |
932 | 0x81c08000, /* jmp %g2 */ | |
933 | 0x01000000 /* nop */ | |
934 | }; | |
935 | ||
936 | /* The format of subsequent PLT entries. */ | |
937 | static const bfd_vma sparc_vxworks_exec_plt_entry[] = | |
938 | { | |
939 | 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */ | |
940 | 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */ | |
941 | 0xc2004000, /* ld [ %g1 ], %g1 */ | |
942 | 0x81c04000, /* jmp %g1 */ | |
943 | 0x01000000, /* nop */ | |
944 | 0x03000000, /* sethi %hi(f@pltindex), %g1 */ | |
945 | 0x10800000, /* b _PLT_resolve */ | |
946 | 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */ | |
947 | }; | |
948 | ||
949 | /* The format of the first PLT entry in a VxWorks shared object. */ | |
950 | static const bfd_vma sparc_vxworks_shared_plt0_entry[] = | |
951 | { | |
952 | 0xc405e008, /* ld [ %l7 + 8 ], %g2 */ | |
953 | 0x81c08000, /* jmp %g2 */ | |
954 | 0x01000000 /* nop */ | |
955 | }; | |
956 | ||
957 | /* The format of subsequent PLT entries. */ | |
958 | static const bfd_vma sparc_vxworks_shared_plt_entry[] = | |
959 | { | |
960 | 0x03000000, /* sethi %hi(f@got), %g1 */ | |
961 | 0x82106000, /* or %g1, %lo(f@got), %g1 */ | |
962 | 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */ | |
963 | 0x81c04000, /* jmp %g1 */ | |
964 | 0x01000000, /* nop */ | |
965 | 0x03000000, /* sethi %hi(f@pltindex), %g1 */ | |
966 | 0x10800000, /* b _PLT_resolve */ | |
967 | 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */ | |
968 | }; | |
969 | ||
22b75d0a DM |
970 | #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \ |
971 | htab->put_word(bfd, val, ptr) | |
972 | ||
22b75d0a DM |
973 | #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \ |
974 | htab->r_info(in_rel, index, type) | |
975 | ||
976 | #define SPARC_ELF_R_SYMNDX(htab, r_info) \ | |
977 | htab->r_symndx(r_info) | |
978 | ||
979 | #define SPARC_ELF_WORD_BYTES(htab) \ | |
980 | htab->bytes_per_word | |
981 | ||
982 | #define SPARC_ELF_RELA_BYTES(htab) \ | |
983 | htab->bytes_per_rela | |
984 | ||
985 | #define SPARC_ELF_DTPOFF_RELOC(htab) \ | |
986 | htab->dtpoff_reloc | |
987 | ||
988 | #define SPARC_ELF_DTPMOD_RELOC(htab) \ | |
989 | htab->dtpmod_reloc | |
990 | ||
991 | #define SPARC_ELF_TPOFF_RELOC(htab) \ | |
992 | htab->tpoff_reloc | |
993 | ||
994 | #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \ | |
995 | htab->build_plt_entry (obfd, splt, off, max, r_off) | |
996 | ||
997 | /* Create an entry in an SPARC ELF linker hash table. */ | |
998 | ||
999 | static struct bfd_hash_entry * | |
1000 | link_hash_newfunc (struct bfd_hash_entry *entry, | |
1001 | struct bfd_hash_table *table, const char *string) | |
1002 | { | |
1003 | /* Allocate the structure if it has not already been allocated by a | |
1004 | subclass. */ | |
1005 | if (entry == NULL) | |
1006 | { | |
1007 | entry = bfd_hash_allocate (table, | |
1008 | sizeof (struct _bfd_sparc_elf_link_hash_entry)); | |
1009 | if (entry == NULL) | |
1010 | return entry; | |
1011 | } | |
1012 | ||
1013 | /* Call the allocation method of the superclass. */ | |
1014 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
1015 | if (entry != NULL) | |
1016 | { | |
1017 | struct _bfd_sparc_elf_link_hash_entry *eh; | |
1018 | ||
1019 | eh = (struct _bfd_sparc_elf_link_hash_entry *) entry; | |
1020 | eh->dyn_relocs = NULL; | |
1021 | eh->tls_type = GOT_UNKNOWN; | |
1022 | } | |
1023 | ||
1024 | return entry; | |
1025 | } | |
1026 | ||
1027 | /* The name of the dynamic interpreter. This is put in the .interp | |
1028 | section. */ | |
1029 | ||
1030 | #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
1031 | #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1" | |
1032 | ||
d0c9aeb3 DM |
1033 | /* Compute a hash of a local hash entry. We use elf_link_hash_entry |
1034 | for local symbol so that we can handle local STT_GNU_IFUNC symbols | |
1035 | as global symbol. We reuse indx and dynstr_index for local symbol | |
1036 | hash since they aren't used by global symbols in this backend. */ | |
1037 | ||
1038 | static hashval_t | |
1039 | elf_sparc_local_htab_hash (const void *ptr) | |
1040 | { | |
1041 | struct elf_link_hash_entry *h | |
1042 | = (struct elf_link_hash_entry *) ptr; | |
1043 | return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index); | |
1044 | } | |
1045 | ||
1046 | /* Compare local hash entries. */ | |
1047 | ||
1048 | static int | |
1049 | elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2) | |
1050 | { | |
1051 | struct elf_link_hash_entry *h1 | |
1052 | = (struct elf_link_hash_entry *) ptr1; | |
1053 | struct elf_link_hash_entry *h2 | |
1054 | = (struct elf_link_hash_entry *) ptr2; | |
1055 | ||
1056 | return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index; | |
1057 | } | |
1058 | ||
1059 | /* Find and/or create a hash entry for local symbol. */ | |
1060 | ||
1061 | static struct elf_link_hash_entry * | |
1062 | elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab, | |
1063 | bfd *abfd, const Elf_Internal_Rela *rel, | |
1064 | bfd_boolean create) | |
1065 | { | |
1066 | struct _bfd_sparc_elf_link_hash_entry e, *ret; | |
1067 | asection *sec = abfd->sections; | |
1068 | unsigned long r_symndx; | |
1069 | hashval_t h; | |
1070 | void **slot; | |
1071 | ||
1072 | r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info); | |
1073 | h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx); | |
1074 | ||
1075 | e.elf.indx = sec->id; | |
1076 | e.elf.dynstr_index = r_symndx; | |
1077 | slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h, | |
1078 | create ? INSERT : NO_INSERT); | |
1079 | ||
1080 | if (!slot) | |
1081 | return NULL; | |
1082 | ||
1083 | if (*slot) | |
1084 | { | |
1085 | ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot; | |
1086 | return &ret->elf; | |
1087 | } | |
1088 | ||
1089 | ret = (struct _bfd_sparc_elf_link_hash_entry *) | |
1090 | objalloc_alloc ((struct objalloc *) htab->loc_hash_memory, | |
1091 | sizeof (struct _bfd_sparc_elf_link_hash_entry)); | |
1092 | if (ret) | |
1093 | { | |
1094 | memset (ret, 0, sizeof (*ret)); | |
1095 | ret->elf.indx = sec->id; | |
1096 | ret->elf.dynstr_index = r_symndx; | |
1097 | ret->elf.dynindx = -1; | |
1098 | ret->elf.plt.offset = (bfd_vma) -1; | |
1099 | ret->elf.got.offset = (bfd_vma) -1; | |
1100 | *slot = ret; | |
1101 | } | |
1102 | return &ret->elf; | |
1103 | } | |
1104 | ||
22b75d0a DM |
1105 | /* Create a SPARC ELF linker hash table. */ |
1106 | ||
1107 | struct bfd_link_hash_table * | |
1108 | _bfd_sparc_elf_link_hash_table_create (bfd *abfd) | |
1109 | { | |
1110 | struct _bfd_sparc_elf_link_hash_table *ret; | |
1111 | bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table); | |
1112 | ||
1113 | ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt); | |
1114 | if (ret == NULL) | |
1115 | return NULL; | |
1116 | ||
1117 | if (ABI_64_P (abfd)) | |
1118 | { | |
1119 | ret->put_word = sparc_put_word_64; | |
22b75d0a DM |
1120 | ret->r_info = sparc_elf_r_info_64; |
1121 | ret->r_symndx = sparc_elf_r_symndx_64; | |
22b75d0a DM |
1122 | ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64; |
1123 | ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64; | |
1124 | ret->tpoff_reloc = R_SPARC_TLS_TPOFF64; | |
1125 | ret->word_align_power = 3; | |
1126 | ret->align_power_max = 4; | |
1127 | ret->bytes_per_word = 8; | |
1128 | ret->bytes_per_rela = sizeof (Elf64_External_Rela); | |
c2e70a82 | 1129 | ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER; |
22b75d0a | 1130 | ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER; |
d0c9aeb3 DM |
1131 | |
1132 | ret->build_plt_entry = sparc64_plt_entry_build; | |
1133 | ret->plt_header_size = PLT64_HEADER_SIZE; | |
1134 | ret->plt_entry_size = PLT64_ENTRY_SIZE; | |
22b75d0a DM |
1135 | } |
1136 | else | |
1137 | { | |
1138 | ret->put_word = sparc_put_word_32; | |
22b75d0a DM |
1139 | ret->r_info = sparc_elf_r_info_32; |
1140 | ret->r_symndx = sparc_elf_r_symndx_32; | |
22b75d0a DM |
1141 | ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32; |
1142 | ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32; | |
1143 | ret->tpoff_reloc = R_SPARC_TLS_TPOFF32; | |
1144 | ret->word_align_power = 2; | |
1145 | ret->align_power_max = 3; | |
1146 | ret->bytes_per_word = 4; | |
1147 | ret->bytes_per_rela = sizeof (Elf32_External_Rela); | |
c2e70a82 | 1148 | ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER; |
22b75d0a | 1149 | ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER; |
d0c9aeb3 DM |
1150 | |
1151 | ret->build_plt_entry = sparc32_plt_entry_build; | |
1152 | ret->plt_header_size = PLT32_HEADER_SIZE; | |
1153 | ret->plt_entry_size = PLT32_ENTRY_SIZE; | |
22b75d0a DM |
1154 | } |
1155 | ||
66eb6687 | 1156 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc, |
4dfe6ac6 NC |
1157 | sizeof (struct _bfd_sparc_elf_link_hash_entry), |
1158 | SPARC_ELF_DATA)) | |
22b75d0a DM |
1159 | { |
1160 | free (ret); | |
1161 | return NULL; | |
1162 | } | |
1163 | ||
d0c9aeb3 DM |
1164 | ret->loc_hash_table = htab_try_create (1024, |
1165 | elf_sparc_local_htab_hash, | |
1166 | elf_sparc_local_htab_eq, | |
1167 | NULL); | |
1168 | ret->loc_hash_memory = objalloc_create (); | |
1169 | if (!ret->loc_hash_table || !ret->loc_hash_memory) | |
1170 | { | |
1171 | free (ret); | |
1172 | return NULL; | |
1173 | } | |
1174 | ||
22b75d0a DM |
1175 | return &ret->elf.root; |
1176 | } | |
1177 | ||
d0c9aeb3 DM |
1178 | /* Destroy a SPARC ELF linker hash table. */ |
1179 | ||
1180 | void | |
1181 | _bfd_sparc_elf_link_hash_table_free (struct bfd_link_hash_table *hash) | |
1182 | { | |
1183 | struct _bfd_sparc_elf_link_hash_table *htab | |
1184 | = (struct _bfd_sparc_elf_link_hash_table *) hash; | |
1185 | ||
1186 | if (htab->loc_hash_table) | |
1187 | htab_delete (htab->loc_hash_table); | |
1188 | if (htab->loc_hash_memory) | |
1189 | objalloc_free ((struct objalloc *) htab->loc_hash_memory); | |
1190 | _bfd_generic_link_hash_table_free (hash); | |
1191 | } | |
1192 | ||
22b75d0a DM |
1193 | /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and |
1194 | .rela.bss sections in DYNOBJ, and set up shortcuts to them in our | |
1195 | hash table. */ | |
1196 | ||
1197 | bfd_boolean | |
1198 | _bfd_sparc_elf_create_dynamic_sections (bfd *dynobj, | |
1199 | struct bfd_link_info *info) | |
1200 | { | |
1201 | struct _bfd_sparc_elf_link_hash_table *htab; | |
1202 | ||
1203 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 NC |
1204 | BFD_ASSERT (htab != NULL); |
1205 | ||
22b75d0a DM |
1206 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
1207 | return FALSE; | |
1208 | ||
3d4d4302 | 1209 | htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss"); |
22b75d0a | 1210 | if (!info->shared) |
3d4d4302 | 1211 | htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss"); |
22b75d0a | 1212 | |
910600e9 RS |
1213 | if (htab->is_vxworks) |
1214 | { | |
1215 | if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2)) | |
1216 | return FALSE; | |
1217 | if (info->shared) | |
1218 | { | |
1219 | htab->plt_header_size | |
1220 | = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); | |
1221 | htab->plt_entry_size | |
1222 | = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry); | |
1223 | } | |
1224 | else | |
1225 | { | |
1226 | htab->plt_header_size | |
1227 | = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry); | |
1228 | htab->plt_entry_size | |
1229 | = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry); | |
1230 | } | |
1231 | } | |
910600e9 | 1232 | |
72fbc6e5 | 1233 | if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss |
22b75d0a DM |
1234 | || (!info->shared && !htab->srelbss)) |
1235 | abort (); | |
1236 | ||
1237 | return TRUE; | |
1238 | } | |
1239 | ||
d0c9aeb3 DM |
1240 | static bfd_boolean |
1241 | create_ifunc_sections (bfd *abfd, struct bfd_link_info *info) | |
1242 | { | |
1243 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
1244 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
1245 | flagword flags, pltflags; | |
1246 | asection *s; | |
1247 | ||
1248 | if (htab->irelifunc != NULL || htab->iplt != NULL) | |
1249 | return TRUE; | |
1250 | ||
1251 | flags = bed->dynamic_sec_flags; | |
1252 | pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD; | |
1253 | ||
1254 | s = bfd_make_section_with_flags (abfd, ".iplt", pltflags); | |
1255 | if (s == NULL | |
1256 | || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) | |
1257 | return FALSE; | |
1258 | htab->iplt = s; | |
1259 | ||
1260 | s = bfd_make_section_with_flags (abfd, ".rela.iplt", | |
1261 | flags | SEC_READONLY); | |
1262 | if (s == NULL | |
1263 | || ! bfd_set_section_alignment (abfd, s, | |
1264 | bed->s->log_file_align)) | |
1265 | return FALSE; | |
1266 | htab->irelplt = s; | |
1267 | ||
1268 | return TRUE; | |
1269 | } | |
1270 | ||
22b75d0a DM |
1271 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
1272 | ||
1273 | void | |
fcfa13d2 | 1274 | _bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info, |
22b75d0a DM |
1275 | struct elf_link_hash_entry *dir, |
1276 | struct elf_link_hash_entry *ind) | |
1277 | { | |
1278 | struct _bfd_sparc_elf_link_hash_entry *edir, *eind; | |
1279 | ||
1280 | edir = (struct _bfd_sparc_elf_link_hash_entry *) dir; | |
1281 | eind = (struct _bfd_sparc_elf_link_hash_entry *) ind; | |
1282 | ||
1283 | if (eind->dyn_relocs != NULL) | |
1284 | { | |
1285 | if (edir->dyn_relocs != NULL) | |
1286 | { | |
1287 | struct _bfd_sparc_elf_dyn_relocs **pp; | |
1288 | struct _bfd_sparc_elf_dyn_relocs *p; | |
1289 | ||
fcfa13d2 | 1290 | /* Add reloc counts against the indirect sym to the direct sym |
22b75d0a DM |
1291 | list. Merge any entries against the same section. */ |
1292 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
1293 | { | |
1294 | struct _bfd_sparc_elf_dyn_relocs *q; | |
1295 | ||
1296 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
1297 | if (q->sec == p->sec) | |
1298 | { | |
1299 | q->pc_count += p->pc_count; | |
1300 | q->count += p->count; | |
1301 | *pp = p->next; | |
1302 | break; | |
1303 | } | |
1304 | if (q == NULL) | |
1305 | pp = &p->next; | |
1306 | } | |
1307 | *pp = edir->dyn_relocs; | |
1308 | } | |
1309 | ||
1310 | edir->dyn_relocs = eind->dyn_relocs; | |
1311 | eind->dyn_relocs = NULL; | |
1312 | } | |
1313 | ||
1314 | if (ind->root.type == bfd_link_hash_indirect | |
1315 | && dir->got.refcount <= 0) | |
1316 | { | |
1317 | edir->tls_type = eind->tls_type; | |
1318 | eind->tls_type = GOT_UNKNOWN; | |
1319 | } | |
fcfa13d2 | 1320 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
22b75d0a DM |
1321 | } |
1322 | ||
1323 | static int | |
1324 | sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd, | |
1325 | int r_type, int is_local) | |
1326 | { | |
1327 | if (! ABI_64_P (abfd) | |
1328 | && r_type == R_SPARC_TLS_GD_HI22 | |
1329 | && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd) | |
1330 | r_type = R_SPARC_REV32; | |
1331 | ||
1332 | if (info->shared) | |
1333 | return r_type; | |
1334 | ||
1335 | switch (r_type) | |
1336 | { | |
1337 | case R_SPARC_TLS_GD_HI22: | |
1338 | if (is_local) | |
1339 | return R_SPARC_TLS_LE_HIX22; | |
1340 | return R_SPARC_TLS_IE_HI22; | |
1341 | case R_SPARC_TLS_GD_LO10: | |
1342 | if (is_local) | |
1343 | return R_SPARC_TLS_LE_LOX10; | |
1344 | return R_SPARC_TLS_IE_LO10; | |
1345 | case R_SPARC_TLS_IE_HI22: | |
1346 | if (is_local) | |
1347 | return R_SPARC_TLS_LE_HIX22; | |
1348 | return r_type; | |
1349 | case R_SPARC_TLS_IE_LO10: | |
1350 | if (is_local) | |
1351 | return R_SPARC_TLS_LE_LOX10; | |
1352 | return r_type; | |
1353 | case R_SPARC_TLS_LDM_HI22: | |
1354 | return R_SPARC_TLS_LE_HIX22; | |
1355 | case R_SPARC_TLS_LDM_LO10: | |
1356 | return R_SPARC_TLS_LE_LOX10; | |
1357 | } | |
1358 | ||
1359 | return r_type; | |
1360 | } | |
1361 | \f | |
1362 | /* Look through the relocs for a section during the first phase, and | |
1363 | allocate space in the global offset table or procedure linkage | |
1364 | table. */ | |
1365 | ||
1366 | bfd_boolean | |
1367 | _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, | |
1368 | asection *sec, const Elf_Internal_Rela *relocs) | |
1369 | { | |
1370 | struct _bfd_sparc_elf_link_hash_table *htab; | |
1371 | Elf_Internal_Shdr *symtab_hdr; | |
1372 | struct elf_link_hash_entry **sym_hashes; | |
22b75d0a DM |
1373 | const Elf_Internal_Rela *rel; |
1374 | const Elf_Internal_Rela *rel_end; | |
1375 | asection *sreloc; | |
1376 | int num_relocs; | |
1377 | bfd_boolean checked_tlsgd = FALSE; | |
1378 | ||
1379 | if (info->relocatable) | |
1380 | return TRUE; | |
1381 | ||
1382 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 1383 | BFD_ASSERT (htab != NULL); |
0ffa91dd | 1384 | symtab_hdr = &elf_symtab_hdr (abfd); |
22b75d0a | 1385 | sym_hashes = elf_sym_hashes (abfd); |
22b75d0a DM |
1386 | |
1387 | sreloc = NULL; | |
1388 | ||
1389 | if (ABI_64_P (abfd)) | |
d4730f92 | 1390 | num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec)); |
22b75d0a DM |
1391 | else |
1392 | num_relocs = sec->reloc_count; | |
0ffa91dd NC |
1393 | |
1394 | BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0); | |
1395 | ||
d0c9aeb3 DM |
1396 | if (htab->elf.dynobj == NULL) |
1397 | htab->elf.dynobj = abfd; | |
1398 | if (!create_ifunc_sections (htab->elf.dynobj, info)) | |
1399 | return FALSE; | |
1400 | ||
22b75d0a DM |
1401 | rel_end = relocs + num_relocs; |
1402 | for (rel = relocs; rel < rel_end; rel++) | |
1403 | { | |
1404 | unsigned int r_type; | |
1405 | unsigned long r_symndx; | |
1406 | struct elf_link_hash_entry *h; | |
d0c9aeb3 | 1407 | Elf_Internal_Sym *isym; |
22b75d0a DM |
1408 | |
1409 | r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info); | |
1410 | r_type = SPARC_ELF_R_TYPE (rel->r_info); | |
1411 | ||
1412 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) | |
1413 | { | |
1414 | (*_bfd_error_handler) (_("%B: bad symbol index: %d"), | |
1415 | abfd, r_symndx); | |
1416 | return FALSE; | |
1417 | } | |
1418 | ||
d0c9aeb3 | 1419 | isym = NULL; |
22b75d0a | 1420 | if (r_symndx < symtab_hdr->sh_info) |
d0c9aeb3 DM |
1421 | { |
1422 | /* A local symbol. */ | |
1423 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
1424 | abfd, r_symndx); | |
1425 | if (isym == NULL) | |
1426 | return FALSE; | |
1427 | ||
1428 | /* Check relocation against local STT_GNU_IFUNC symbol. */ | |
1429 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
1430 | { | |
1431 | h = elf_sparc_get_local_sym_hash (htab, abfd, rel, | |
1432 | TRUE); | |
1433 | if (h == NULL) | |
1434 | return FALSE; | |
68ffbac6 | 1435 | |
d0c9aeb3 DM |
1436 | /* Fake a STT_GNU_IFUNC symbol. */ |
1437 | h->type = STT_GNU_IFUNC; | |
1438 | h->def_regular = 1; | |
1439 | h->ref_regular = 1; | |
1440 | h->forced_local = 1; | |
1441 | h->root.type = bfd_link_hash_defined; | |
1442 | } | |
1443 | else | |
1444 | h = NULL; | |
1445 | } | |
22b75d0a | 1446 | else |
973a3492 L |
1447 | { |
1448 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1449 | while (h->root.type == bfd_link_hash_indirect | |
1450 | || h->root.type == bfd_link_hash_warning) | |
1451 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
81fbe831 AM |
1452 | |
1453 | /* PR15323, ref flags aren't set for references in the same | |
1454 | object. */ | |
1455 | h->root.non_ir_ref = 1; | |
973a3492 | 1456 | } |
22b75d0a | 1457 | |
d0c9aeb3 DM |
1458 | if (h && h->type == STT_GNU_IFUNC) |
1459 | { | |
1460 | if (h->def_regular) | |
b48ca1d4 DM |
1461 | { |
1462 | h->ref_regular = 1; | |
1463 | h->plt.refcount += 1; | |
1464 | } | |
d0c9aeb3 DM |
1465 | } |
1466 | ||
22b75d0a DM |
1467 | /* Compatibility with old R_SPARC_REV32 reloc conflicting |
1468 | with R_SPARC_TLS_GD_HI22. */ | |
1469 | if (! ABI_64_P (abfd) && ! checked_tlsgd) | |
1470 | switch (r_type) | |
1471 | { | |
1472 | case R_SPARC_TLS_GD_HI22: | |
1473 | { | |
1474 | const Elf_Internal_Rela *relt; | |
1475 | ||
1476 | for (relt = rel + 1; relt < rel_end; relt++) | |
1477 | if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10 | |
1478 | || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD | |
1479 | || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL) | |
1480 | break; | |
1481 | checked_tlsgd = TRUE; | |
1482 | _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end; | |
1483 | } | |
1484 | break; | |
1485 | case R_SPARC_TLS_GD_LO10: | |
1486 | case R_SPARC_TLS_GD_ADD: | |
1487 | case R_SPARC_TLS_GD_CALL: | |
1488 | checked_tlsgd = TRUE; | |
1489 | _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE; | |
1490 | break; | |
1491 | } | |
1492 | ||
1493 | r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL); | |
1494 | switch (r_type) | |
1495 | { | |
1496 | case R_SPARC_TLS_LDM_HI22: | |
1497 | case R_SPARC_TLS_LDM_LO10: | |
1498 | htab->tls_ldm_got.refcount += 1; | |
1499 | break; | |
1500 | ||
1501 | case R_SPARC_TLS_LE_HIX22: | |
1502 | case R_SPARC_TLS_LE_LOX10: | |
1503 | if (info->shared) | |
1504 | goto r_sparc_plt32; | |
1505 | break; | |
1506 | ||
1507 | case R_SPARC_TLS_IE_HI22: | |
1508 | case R_SPARC_TLS_IE_LO10: | |
1509 | if (info->shared) | |
1510 | info->flags |= DF_STATIC_TLS; | |
1511 | /* Fall through */ | |
1512 | ||
1513 | case R_SPARC_GOT10: | |
1514 | case R_SPARC_GOT13: | |
1515 | case R_SPARC_GOT22: | |
739f7f82 DM |
1516 | case R_SPARC_GOTDATA_HIX22: |
1517 | case R_SPARC_GOTDATA_LOX10: | |
1518 | case R_SPARC_GOTDATA_OP_HIX22: | |
1519 | case R_SPARC_GOTDATA_OP_LOX10: | |
22b75d0a DM |
1520 | case R_SPARC_TLS_GD_HI22: |
1521 | case R_SPARC_TLS_GD_LO10: | |
1522 | /* This symbol requires a global offset table entry. */ | |
1523 | { | |
1524 | int tls_type, old_tls_type; | |
1525 | ||
1526 | switch (r_type) | |
1527 | { | |
1528 | default: | |
1529 | case R_SPARC_GOT10: | |
1530 | case R_SPARC_GOT13: | |
1531 | case R_SPARC_GOT22: | |
739f7f82 DM |
1532 | case R_SPARC_GOTDATA_OP_HIX22: |
1533 | case R_SPARC_GOTDATA_OP_LOX10: | |
22b75d0a DM |
1534 | tls_type = GOT_NORMAL; |
1535 | break; | |
1536 | case R_SPARC_TLS_GD_HI22: | |
1537 | case R_SPARC_TLS_GD_LO10: | |
1538 | tls_type = GOT_TLS_GD; | |
1539 | break; | |
1540 | case R_SPARC_TLS_IE_HI22: | |
1541 | case R_SPARC_TLS_IE_LO10: | |
1542 | tls_type = GOT_TLS_IE; | |
1543 | break; | |
1544 | } | |
1545 | ||
1546 | if (h != NULL) | |
1547 | { | |
1548 | h->got.refcount += 1; | |
1549 | old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type; | |
1550 | } | |
1551 | else | |
1552 | { | |
1553 | bfd_signed_vma *local_got_refcounts; | |
1554 | ||
1555 | /* This is a global offset table entry for a local symbol. */ | |
1556 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1557 | if (local_got_refcounts == NULL) | |
1558 | { | |
1559 | bfd_size_type size; | |
1560 | ||
1561 | size = symtab_hdr->sh_info; | |
1562 | size *= (sizeof (bfd_signed_vma) + sizeof(char)); | |
1563 | local_got_refcounts = ((bfd_signed_vma *) | |
1564 | bfd_zalloc (abfd, size)); | |
1565 | if (local_got_refcounts == NULL) | |
1566 | return FALSE; | |
1567 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
1568 | _bfd_sparc_elf_local_got_tls_type (abfd) | |
1569 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
1570 | } | |
00c50991 DM |
1571 | switch (r_type) |
1572 | { | |
1573 | case R_SPARC_GOTDATA_OP_HIX22: | |
1574 | case R_SPARC_GOTDATA_OP_LOX10: | |
1575 | break; | |
1576 | ||
1577 | default: | |
1578 | local_got_refcounts[r_symndx] += 1; | |
1579 | break; | |
1580 | } | |
22b75d0a DM |
1581 | old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx]; |
1582 | } | |
1583 | ||
1584 | /* If a TLS symbol is accessed using IE at least once, | |
1585 | there is no point to use dynamic model for it. */ | |
1586 | if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN | |
1587 | && (old_tls_type != GOT_TLS_GD | |
1588 | || tls_type != GOT_TLS_IE)) | |
1589 | { | |
1590 | if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD) | |
1591 | tls_type = old_tls_type; | |
1592 | else | |
1593 | { | |
1594 | (*_bfd_error_handler) | |
1595 | (_("%B: `%s' accessed both as normal and thread local symbol"), | |
1596 | abfd, h ? h->root.root.string : "<local>"); | |
1597 | return FALSE; | |
1598 | } | |
1599 | } | |
1600 | ||
1601 | if (old_tls_type != tls_type) | |
1602 | { | |
1603 | if (h != NULL) | |
1604 | _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type; | |
1605 | else | |
1606 | _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
1607 | } | |
1608 | } | |
1609 | ||
72fbc6e5 | 1610 | if (htab->elf.sgot == NULL) |
22b75d0a | 1611 | { |
72fbc6e5 | 1612 | if (!_bfd_elf_create_got_section (htab->elf.dynobj, info)) |
22b75d0a DM |
1613 | return FALSE; |
1614 | } | |
1615 | break; | |
1616 | ||
1617 | case R_SPARC_TLS_GD_CALL: | |
1618 | case R_SPARC_TLS_LDM_CALL: | |
1619 | if (info->shared) | |
1620 | { | |
1621 | /* These are basically R_SPARC_TLS_WPLT30 relocs against | |
1622 | __tls_get_addr. */ | |
1623 | struct bfd_link_hash_entry *bh = NULL; | |
1624 | if (! _bfd_generic_link_add_one_symbol (info, abfd, | |
1625 | "__tls_get_addr", 0, | |
1626 | bfd_und_section_ptr, 0, | |
1627 | NULL, FALSE, FALSE, | |
1628 | &bh)) | |
1629 | return FALSE; | |
1630 | h = (struct elf_link_hash_entry *) bh; | |
1631 | } | |
1632 | else | |
1633 | break; | |
1634 | /* Fall through */ | |
1635 | ||
1636 | case R_SPARC_PLT32: | |
1637 | case R_SPARC_WPLT30: | |
1638 | case R_SPARC_HIPLT22: | |
1639 | case R_SPARC_LOPLT10: | |
1640 | case R_SPARC_PCPLT32: | |
1641 | case R_SPARC_PCPLT22: | |
1642 | case R_SPARC_PCPLT10: | |
1643 | case R_SPARC_PLT64: | |
1644 | /* This symbol requires a procedure linkage table entry. We | |
1645 | actually build the entry in adjust_dynamic_symbol, | |
1646 | because this might be a case of linking PIC code without | |
1647 | linking in any dynamic objects, in which case we don't | |
1648 | need to generate a procedure linkage table after all. */ | |
1649 | ||
1650 | if (h == NULL) | |
1651 | { | |
1652 | if (! ABI_64_P (abfd)) | |
1653 | { | |
1654 | /* The Solaris native assembler will generate a WPLT30 | |
1655 | reloc for a local symbol if you assemble a call from | |
1656 | one section to another when using -K pic. We treat | |
1657 | it as WDISP30. */ | |
1658 | if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32) | |
1659 | goto r_sparc_plt32; | |
1660 | break; | |
1661 | } | |
af1fb11f NC |
1662 | /* PR 7027: We need similar behaviour for 64-bit binaries. */ |
1663 | else if (r_type == R_SPARC_WPLT30) | |
1664 | break; | |
22b75d0a DM |
1665 | |
1666 | /* It does not make sense to have a procedure linkage | |
1667 | table entry for a local symbol. */ | |
1668 | bfd_set_error (bfd_error_bad_value); | |
1669 | return FALSE; | |
1670 | } | |
1671 | ||
1672 | h->needs_plt = 1; | |
1673 | ||
1674 | { | |
1675 | int this_r_type; | |
1676 | ||
1677 | this_r_type = SPARC_ELF_R_TYPE (rel->r_info); | |
1678 | if (this_r_type == R_SPARC_PLT32 | |
1679 | || this_r_type == R_SPARC_PLT64) | |
1680 | goto r_sparc_plt32; | |
1681 | } | |
1682 | h->plt.refcount += 1; | |
1683 | break; | |
1684 | ||
1685 | case R_SPARC_PC10: | |
1686 | case R_SPARC_PC22: | |
1687 | case R_SPARC_PC_HH22: | |
1688 | case R_SPARC_PC_HM10: | |
1689 | case R_SPARC_PC_LM22: | |
1690 | if (h != NULL) | |
1691 | h->non_got_ref = 1; | |
1692 | ||
1693 | if (h != NULL | |
1694 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1695 | break; | |
1696 | /* Fall through. */ | |
1697 | ||
1698 | case R_SPARC_DISP8: | |
1699 | case R_SPARC_DISP16: | |
1700 | case R_SPARC_DISP32: | |
1701 | case R_SPARC_DISP64: | |
1702 | case R_SPARC_WDISP30: | |
1703 | case R_SPARC_WDISP22: | |
1704 | case R_SPARC_WDISP19: | |
1705 | case R_SPARC_WDISP16: | |
2615994e | 1706 | case R_SPARC_WDISP10: |
22b75d0a DM |
1707 | case R_SPARC_8: |
1708 | case R_SPARC_16: | |
1709 | case R_SPARC_32: | |
1710 | case R_SPARC_HI22: | |
1711 | case R_SPARC_22: | |
1712 | case R_SPARC_13: | |
1713 | case R_SPARC_LO10: | |
1714 | case R_SPARC_UA16: | |
1715 | case R_SPARC_UA32: | |
1716 | case R_SPARC_10: | |
1717 | case R_SPARC_11: | |
1718 | case R_SPARC_64: | |
1719 | case R_SPARC_OLO10: | |
1720 | case R_SPARC_HH22: | |
1721 | case R_SPARC_HM10: | |
1722 | case R_SPARC_LM22: | |
1723 | case R_SPARC_7: | |
1724 | case R_SPARC_5: | |
1725 | case R_SPARC_6: | |
1726 | case R_SPARC_HIX22: | |
1727 | case R_SPARC_LOX10: | |
1728 | case R_SPARC_H44: | |
1729 | case R_SPARC_M44: | |
1730 | case R_SPARC_L44: | |
2615994e | 1731 | case R_SPARC_H34: |
22b75d0a DM |
1732 | case R_SPARC_UA64: |
1733 | if (h != NULL) | |
1734 | h->non_got_ref = 1; | |
1735 | ||
1736 | r_sparc_plt32: | |
1737 | if (h != NULL && !info->shared) | |
1738 | { | |
1739 | /* We may need a .plt entry if the function this reloc | |
1740 | refers to is in a shared lib. */ | |
1741 | h->plt.refcount += 1; | |
1742 | } | |
1743 | ||
1744 | /* If we are creating a shared library, and this is a reloc | |
1745 | against a global symbol, or a non PC relative reloc | |
1746 | against a local symbol, then we need to copy the reloc | |
1747 | into the shared library. However, if we are linking with | |
1748 | -Bsymbolic, we do not need to copy a reloc against a | |
1749 | global symbol which is defined in an object we are | |
1750 | including in the link (i.e., DEF_REGULAR is set). At | |
1751 | this point we have not seen all the input files, so it is | |
1752 | possible that DEF_REGULAR is not set now but will be set | |
1753 | later (it is never cleared). In case of a weak definition, | |
1754 | DEF_REGULAR may be cleared later by a strong definition in | |
1755 | a shared library. We account for that possibility below by | |
1756 | storing information in the relocs_copied field of the hash | |
1757 | table entry. A similar situation occurs when creating | |
1758 | shared libraries and symbol visibility changes render the | |
1759 | symbol local. | |
1760 | ||
1761 | If on the other hand, we are creating an executable, we | |
1762 | may need to keep relocations for symbols satisfied by a | |
1763 | dynamic library if we manage to avoid copy relocs for the | |
1764 | symbol. */ | |
1765 | if ((info->shared | |
1766 | && (sec->flags & SEC_ALLOC) != 0 | |
1767 | && (! _bfd_sparc_elf_howto_table[r_type].pc_relative | |
1768 | || (h != NULL | |
72fbc6e5 | 1769 | && (! SYMBOLIC_BIND (info, h) |
22b75d0a DM |
1770 | || h->root.type == bfd_link_hash_defweak |
1771 | || !h->def_regular)))) | |
1772 | || (!info->shared | |
1773 | && (sec->flags & SEC_ALLOC) != 0 | |
1774 | && h != NULL | |
1775 | && (h->root.type == bfd_link_hash_defweak | |
d0c9aeb3 DM |
1776 | || !h->def_regular)) |
1777 | || (!info->shared | |
1778 | && h != NULL | |
1779 | && h->type == STT_GNU_IFUNC)) | |
22b75d0a DM |
1780 | { |
1781 | struct _bfd_sparc_elf_dyn_relocs *p; | |
1782 | struct _bfd_sparc_elf_dyn_relocs **head; | |
1783 | ||
1784 | /* When creating a shared object, we must copy these | |
1785 | relocs into the output file. We create a reloc | |
1786 | section in dynobj and make room for the reloc. */ | |
1787 | if (sreloc == NULL) | |
1788 | { | |
83bac4b0 NC |
1789 | sreloc = _bfd_elf_make_dynamic_reloc_section |
1790 | (sec, htab->elf.dynobj, htab->word_align_power, | |
1791 | abfd, /*rela?*/ TRUE); | |
1792 | ||
22b75d0a | 1793 | if (sreloc == NULL) |
83bac4b0 | 1794 | return FALSE; |
22b75d0a DM |
1795 | } |
1796 | ||
1797 | /* If this is a global symbol, we count the number of | |
1798 | relocations we need for this symbol. */ | |
1799 | if (h != NULL) | |
1800 | head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs; | |
1801 | else | |
1802 | { | |
1803 | /* Track dynamic relocs needed for local syms too. | |
1804 | We really need local syms available to do this | |
1805 | easily. Oh well. */ | |
22b75d0a | 1806 | asection *s; |
6edfbbad | 1807 | void *vpp; |
22b75d0a | 1808 | |
d0c9aeb3 | 1809 | BFD_ASSERT (isym != NULL); |
87d72d41 AM |
1810 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
1811 | if (s == NULL) | |
1812 | s = sec; | |
1813 | ||
6edfbbad DJ |
1814 | vpp = &elf_section_data (s)->local_dynrel; |
1815 | head = (struct _bfd_sparc_elf_dyn_relocs **) vpp; | |
22b75d0a DM |
1816 | } |
1817 | ||
1818 | p = *head; | |
1819 | if (p == NULL || p->sec != sec) | |
1820 | { | |
1821 | bfd_size_type amt = sizeof *p; | |
1822 | p = ((struct _bfd_sparc_elf_dyn_relocs *) | |
1823 | bfd_alloc (htab->elf.dynobj, amt)); | |
1824 | if (p == NULL) | |
1825 | return FALSE; | |
1826 | p->next = *head; | |
1827 | *head = p; | |
1828 | p->sec = sec; | |
1829 | p->count = 0; | |
1830 | p->pc_count = 0; | |
1831 | } | |
1832 | ||
1833 | p->count += 1; | |
1834 | if (_bfd_sparc_elf_howto_table[r_type].pc_relative) | |
1835 | p->pc_count += 1; | |
1836 | } | |
1837 | ||
1838 | break; | |
1839 | ||
1840 | case R_SPARC_GNU_VTINHERIT: | |
1841 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
1842 | return FALSE; | |
1843 | break; | |
1844 | ||
1845 | case R_SPARC_GNU_VTENTRY: | |
d17e0c6e JB |
1846 | BFD_ASSERT (h != NULL); |
1847 | if (h != NULL | |
1848 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
22b75d0a DM |
1849 | return FALSE; |
1850 | break; | |
1851 | ||
1852 | case R_SPARC_REGISTER: | |
1853 | /* Nothing to do. */ | |
1854 | break; | |
1855 | ||
1856 | default: | |
1857 | break; | |
1858 | } | |
1859 | } | |
1860 | ||
1861 | return TRUE; | |
1862 | } | |
1863 | \f | |
1864 | asection * | |
1865 | _bfd_sparc_elf_gc_mark_hook (asection *sec, | |
1866 | struct bfd_link_info *info, | |
1867 | Elf_Internal_Rela *rel, | |
1868 | struct elf_link_hash_entry *h, | |
1869 | Elf_Internal_Sym *sym) | |
1870 | { | |
1871 | if (h != NULL) | |
07adf181 | 1872 | switch (SPARC_ELF_R_TYPE (rel->r_info)) |
22b75d0a DM |
1873 | { |
1874 | case R_SPARC_GNU_VTINHERIT: | |
1875 | case R_SPARC_GNU_VTENTRY: | |
07adf181 | 1876 | return NULL; |
22b75d0a | 1877 | } |
22b75d0a | 1878 | |
b45b6908 AM |
1879 | /* FIXME: The test here, in check_relocs and in relocate_section |
1880 | dealing with TLS optimization, ought to be !info->executable. */ | |
1881 | if (info->shared) | |
1882 | { | |
1883 | switch (SPARC_ELF_R_TYPE (rel->r_info)) | |
1884 | { | |
1885 | case R_SPARC_TLS_GD_CALL: | |
1886 | case R_SPARC_TLS_LDM_CALL: | |
1887 | /* This reloc implicitly references __tls_get_addr. We know | |
1888 | another reloc will reference the same symbol as the one | |
1889 | on this reloc, so the real symbol and section will be | |
1890 | gc marked when processing the other reloc. That lets | |
1891 | us handle __tls_get_addr here. */ | |
1892 | h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr", | |
1893 | FALSE, FALSE, TRUE); | |
1894 | BFD_ASSERT (h != NULL); | |
1895 | h->mark = 1; | |
1896 | if (h->u.weakdef != NULL) | |
1897 | h->u.weakdef->mark = 1; | |
1898 | sym = NULL; | |
1899 | } | |
1900 | } | |
1901 | ||
07adf181 | 1902 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
22b75d0a DM |
1903 | } |
1904 | ||
abd242a9 DM |
1905 | static Elf_Internal_Rela * |
1906 | sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel, | |
1907 | Elf_Internal_Rela *relend, | |
1908 | bfd_vma offset) | |
1909 | { | |
1910 | while (rel < relend) | |
1911 | { | |
1912 | if (rel->r_offset == offset) | |
1913 | return rel; | |
1914 | rel++; | |
1915 | } | |
1916 | return NULL; | |
1917 | } | |
1918 | ||
22b75d0a DM |
1919 | /* Update the got entry reference counts for the section being removed. */ |
1920 | bfd_boolean | |
1921 | _bfd_sparc_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, | |
1922 | asection *sec, const Elf_Internal_Rela *relocs) | |
1923 | { | |
1924 | struct _bfd_sparc_elf_link_hash_table *htab; | |
1925 | Elf_Internal_Shdr *symtab_hdr; | |
1926 | struct elf_link_hash_entry **sym_hashes; | |
1927 | bfd_signed_vma *local_got_refcounts; | |
1928 | const Elf_Internal_Rela *rel, *relend; | |
1929 | ||
7dda2462 TG |
1930 | if (info->relocatable) |
1931 | return TRUE; | |
1932 | ||
0ffa91dd NC |
1933 | BFD_ASSERT (is_sparc_elf (abfd) || sec->reloc_count == 0); |
1934 | ||
22b75d0a DM |
1935 | elf_section_data (sec)->local_dynrel = NULL; |
1936 | ||
1937 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 1938 | BFD_ASSERT (htab != NULL); |
0ffa91dd | 1939 | symtab_hdr = &elf_symtab_hdr (abfd); |
22b75d0a DM |
1940 | sym_hashes = elf_sym_hashes (abfd); |
1941 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1942 | ||
1943 | relend = relocs + sec->reloc_count; | |
1944 | for (rel = relocs; rel < relend; rel++) | |
1945 | { | |
1946 | unsigned long r_symndx; | |
1947 | unsigned int r_type; | |
1948 | struct elf_link_hash_entry *h = NULL; | |
1949 | ||
1950 | r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info); | |
1951 | if (r_symndx >= symtab_hdr->sh_info) | |
1952 | { | |
1953 | struct _bfd_sparc_elf_link_hash_entry *eh; | |
1954 | struct _bfd_sparc_elf_dyn_relocs **pp; | |
1955 | struct _bfd_sparc_elf_dyn_relocs *p; | |
1956 | ||
1957 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1958 | while (h->root.type == bfd_link_hash_indirect | |
1959 | || h->root.type == bfd_link_hash_warning) | |
1960 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1961 | eh = (struct _bfd_sparc_elf_link_hash_entry *) h; | |
1962 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1963 | if (p->sec == sec) | |
1964 | { | |
1965 | /* Everything must go for SEC. */ | |
1966 | *pp = p->next; | |
1967 | break; | |
1968 | } | |
1969 | } | |
1970 | ||
1971 | r_type = SPARC_ELF_R_TYPE (rel->r_info); | |
1972 | r_type = sparc_elf_tls_transition (info, abfd, r_type, h != NULL); | |
1973 | switch (r_type) | |
1974 | { | |
1975 | case R_SPARC_TLS_LDM_HI22: | |
1976 | case R_SPARC_TLS_LDM_LO10: | |
1977 | if (_bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount > 0) | |
1978 | _bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount -= 1; | |
1979 | break; | |
1980 | ||
1981 | case R_SPARC_TLS_GD_HI22: | |
1982 | case R_SPARC_TLS_GD_LO10: | |
1983 | case R_SPARC_TLS_IE_HI22: | |
1984 | case R_SPARC_TLS_IE_LO10: | |
1985 | case R_SPARC_GOT10: | |
1986 | case R_SPARC_GOT13: | |
1987 | case R_SPARC_GOT22: | |
739f7f82 DM |
1988 | case R_SPARC_GOTDATA_HIX22: |
1989 | case R_SPARC_GOTDATA_LOX10: | |
1990 | case R_SPARC_GOTDATA_OP_HIX22: | |
1991 | case R_SPARC_GOTDATA_OP_LOX10: | |
22b75d0a DM |
1992 | if (h != NULL) |
1993 | { | |
1994 | if (h->got.refcount > 0) | |
1995 | h->got.refcount--; | |
1996 | } | |
1997 | else | |
1998 | { | |
00c50991 DM |
1999 | switch (r_type) |
2000 | { | |
2001 | case R_SPARC_GOTDATA_OP_HIX22: | |
2002 | case R_SPARC_GOTDATA_OP_LOX10: | |
2003 | break; | |
2004 | ||
2005 | default: | |
2006 | if (local_got_refcounts[r_symndx] > 0) | |
2007 | local_got_refcounts[r_symndx]--; | |
2008 | break; | |
2009 | } | |
22b75d0a DM |
2010 | } |
2011 | break; | |
2012 | ||
2013 | case R_SPARC_PC10: | |
2014 | case R_SPARC_PC22: | |
2015 | case R_SPARC_PC_HH22: | |
2016 | case R_SPARC_PC_HM10: | |
2017 | case R_SPARC_PC_LM22: | |
2018 | if (h != NULL | |
2019 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
2020 | break; | |
2021 | /* Fall through. */ | |
2022 | ||
2023 | case R_SPARC_DISP8: | |
2024 | case R_SPARC_DISP16: | |
2025 | case R_SPARC_DISP32: | |
2026 | case R_SPARC_DISP64: | |
2027 | case R_SPARC_WDISP30: | |
2028 | case R_SPARC_WDISP22: | |
2029 | case R_SPARC_WDISP19: | |
2030 | case R_SPARC_WDISP16: | |
2615994e | 2031 | case R_SPARC_WDISP10: |
22b75d0a DM |
2032 | case R_SPARC_8: |
2033 | case R_SPARC_16: | |
2034 | case R_SPARC_32: | |
2035 | case R_SPARC_HI22: | |
2036 | case R_SPARC_22: | |
2037 | case R_SPARC_13: | |
2038 | case R_SPARC_LO10: | |
2039 | case R_SPARC_UA16: | |
2040 | case R_SPARC_UA32: | |
2041 | case R_SPARC_PLT32: | |
2042 | case R_SPARC_10: | |
2043 | case R_SPARC_11: | |
2044 | case R_SPARC_64: | |
2045 | case R_SPARC_OLO10: | |
2046 | case R_SPARC_HH22: | |
2047 | case R_SPARC_HM10: | |
2048 | case R_SPARC_LM22: | |
2049 | case R_SPARC_7: | |
2050 | case R_SPARC_5: | |
2051 | case R_SPARC_6: | |
2052 | case R_SPARC_HIX22: | |
2053 | case R_SPARC_LOX10: | |
2054 | case R_SPARC_H44: | |
2055 | case R_SPARC_M44: | |
2056 | case R_SPARC_L44: | |
2615994e | 2057 | case R_SPARC_H34: |
22b75d0a DM |
2058 | case R_SPARC_UA64: |
2059 | if (info->shared) | |
2060 | break; | |
2061 | /* Fall through. */ | |
2062 | ||
2063 | case R_SPARC_WPLT30: | |
2064 | if (h != NULL) | |
2065 | { | |
2066 | if (h->plt.refcount > 0) | |
2067 | h->plt.refcount--; | |
2068 | } | |
2069 | break; | |
2070 | ||
2071 | default: | |
2072 | break; | |
2073 | } | |
2074 | } | |
2075 | ||
2076 | return TRUE; | |
2077 | } | |
2078 | ||
2079 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
2080 | regular object. The current definition is in some section of the | |
2081 | dynamic object, but we're not including those sections. We have to | |
2082 | change the definition to something the rest of the link can | |
2083 | understand. */ | |
2084 | ||
2085 | bfd_boolean | |
2086 | _bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
2087 | struct elf_link_hash_entry *h) | |
2088 | { | |
2089 | struct _bfd_sparc_elf_link_hash_table *htab; | |
2090 | struct _bfd_sparc_elf_link_hash_entry * eh; | |
2091 | struct _bfd_sparc_elf_dyn_relocs *p; | |
2092 | asection *s; | |
22b75d0a DM |
2093 | |
2094 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 2095 | BFD_ASSERT (htab != NULL); |
22b75d0a DM |
2096 | |
2097 | /* Make sure we know what is going on here. */ | |
2098 | BFD_ASSERT (htab->elf.dynobj != NULL | |
2099 | && (h->needs_plt | |
d0c9aeb3 | 2100 | || h->type == STT_GNU_IFUNC |
22b75d0a DM |
2101 | || h->u.weakdef != NULL |
2102 | || (h->def_dynamic | |
2103 | && h->ref_regular | |
2104 | && !h->def_regular))); | |
2105 | ||
2106 | /* If this is a function, put it in the procedure linkage table. We | |
2107 | will fill in the contents of the procedure linkage table later | |
2108 | (although we could actually do it here). The STT_NOTYPE | |
2109 | condition is a hack specifically for the Oracle libraries | |
2110 | delivered for Solaris; for some inexplicable reason, they define | |
2111 | some of their functions as STT_NOTYPE when they really should be | |
2112 | STT_FUNC. */ | |
2113 | if (h->type == STT_FUNC | |
d0c9aeb3 | 2114 | || h->type == STT_GNU_IFUNC |
22b75d0a DM |
2115 | || h->needs_plt |
2116 | || (h->type == STT_NOTYPE | |
2117 | && (h->root.type == bfd_link_hash_defined | |
2118 | || h->root.type == bfd_link_hash_defweak) | |
2119 | && (h->root.u.def.section->flags & SEC_CODE) != 0)) | |
2120 | { | |
2121 | if (h->plt.refcount <= 0 | |
d0c9aeb3 DM |
2122 | || (h->type != STT_GNU_IFUNC |
2123 | && (SYMBOL_CALLS_LOCAL (info, h) | |
2124 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
2125 | && h->root.type == bfd_link_hash_undefweak)))) | |
22b75d0a DM |
2126 | { |
2127 | /* This case can occur if we saw a WPLT30 reloc in an input | |
2128 | file, but the symbol was never referred to by a dynamic | |
2129 | object, or if all references were garbage collected. In | |
2130 | such a case, we don't actually need to build a procedure | |
2131 | linkage table, and we can just do a WDISP30 reloc instead. */ | |
2132 | h->plt.offset = (bfd_vma) -1; | |
2133 | h->needs_plt = 0; | |
2134 | } | |
2135 | ||
2136 | return TRUE; | |
2137 | } | |
2138 | else | |
2139 | h->plt.offset = (bfd_vma) -1; | |
2140 | ||
2141 | /* If this is a weak symbol, and there is a real definition, the | |
2142 | processor independent code will have arranged for us to see the | |
2143 | real definition first, and we can just use the same value. */ | |
2144 | if (h->u.weakdef != NULL) | |
2145 | { | |
2146 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined | |
2147 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
2148 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
2149 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
2150 | return TRUE; | |
2151 | } | |
2152 | ||
2153 | /* This is a reference to a symbol defined by a dynamic object which | |
2154 | is not a function. */ | |
2155 | ||
2156 | /* If we are creating a shared library, we must presume that the | |
2157 | only references to the symbol are via the global offset table. | |
2158 | For such cases we need not do anything here; the relocations will | |
2159 | be handled correctly by relocate_section. */ | |
2160 | if (info->shared) | |
2161 | return TRUE; | |
2162 | ||
2163 | /* If there are no references to this symbol that do not use the | |
2164 | GOT, we don't need to generate a copy reloc. */ | |
2165 | if (!h->non_got_ref) | |
2166 | return TRUE; | |
2167 | ||
72fbc6e5 DM |
2168 | /* If -z nocopyreloc was given, we won't generate them either. */ |
2169 | if (info->nocopyreloc) | |
2170 | { | |
2171 | h->non_got_ref = 0; | |
2172 | return TRUE; | |
2173 | } | |
2174 | ||
22b75d0a DM |
2175 | eh = (struct _bfd_sparc_elf_link_hash_entry *) h; |
2176 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2177 | { | |
2178 | s = p->sec->output_section; | |
2179 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2180 | break; | |
2181 | } | |
2182 | ||
2183 | /* If we didn't find any dynamic relocs in read-only sections, then | |
2184 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
2185 | if (p == NULL) | |
2186 | { | |
2187 | h->non_got_ref = 0; | |
2188 | return TRUE; | |
2189 | } | |
2190 | ||
2191 | /* We must allocate the symbol in our .dynbss section, which will | |
2192 | become part of the .bss section of the executable. There will be | |
2193 | an entry for this symbol in the .dynsym section. The dynamic | |
2194 | object will contain position independent code, so all references | |
2195 | from the dynamic object to this symbol will go through the global | |
2196 | offset table. The dynamic linker will use the .dynsym entry to | |
2197 | determine the address it must put in the global offset table, so | |
2198 | both the dynamic object and the regular object will refer to the | |
2199 | same memory location for the variable. */ | |
2200 | ||
2201 | /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker | |
2202 | to copy the initial value out of the dynamic object and into the | |
2203 | runtime process image. We need to remember the offset into the | |
2204 | .rel.bss section we are going to use. */ | |
1d7e9d18 | 2205 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
22b75d0a DM |
2206 | { |
2207 | htab->srelbss->size += SPARC_ELF_RELA_BYTES (htab); | |
2208 | h->needs_copy = 1; | |
2209 | } | |
2210 | ||
22b75d0a | 2211 | s = htab->sdynbss; |
22b75d0a | 2212 | |
027297b7 | 2213 | return _bfd_elf_adjust_dynamic_copy (h, s); |
22b75d0a DM |
2214 | } |
2215 | ||
2216 | /* Allocate space in .plt, .got and associated reloc sections for | |
2217 | dynamic relocs. */ | |
2218 | ||
2219 | static bfd_boolean | |
2c3fc389 | 2220 | allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) |
22b75d0a DM |
2221 | { |
2222 | struct bfd_link_info *info; | |
2223 | struct _bfd_sparc_elf_link_hash_table *htab; | |
2224 | struct _bfd_sparc_elf_link_hash_entry *eh; | |
2225 | struct _bfd_sparc_elf_dyn_relocs *p; | |
2226 | ||
2227 | if (h->root.type == bfd_link_hash_indirect) | |
2228 | return TRUE; | |
2229 | ||
22b75d0a DM |
2230 | info = (struct bfd_link_info *) inf; |
2231 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 2232 | BFD_ASSERT (htab != NULL); |
22b75d0a | 2233 | |
d0c9aeb3 DM |
2234 | if ((htab->elf.dynamic_sections_created |
2235 | && h->plt.refcount > 0) | |
2236 | || (h->type == STT_GNU_IFUNC | |
b48ca1d4 DM |
2237 | && h->def_regular |
2238 | && h->ref_regular)) | |
22b75d0a DM |
2239 | { |
2240 | /* Make sure this symbol is output as a dynamic symbol. | |
2241 | Undefined weak syms won't yet be marked as dynamic. */ | |
2242 | if (h->dynindx == -1 | |
2243 | && !h->forced_local) | |
2244 | { | |
2245 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2246 | return FALSE; | |
2247 | } | |
2248 | ||
d0c9aeb3 | 2249 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h) |
b48ca1d4 DM |
2250 | || (h->type == STT_GNU_IFUNC |
2251 | && h->def_regular)) | |
22b75d0a | 2252 | { |
72fbc6e5 | 2253 | asection *s = htab->elf.splt; |
22b75d0a | 2254 | |
d0c9aeb3 DM |
2255 | if (s == NULL) |
2256 | s = htab->elf.iplt; | |
2257 | ||
910600e9 | 2258 | /* Allocate room for the header. */ |
22b75d0a | 2259 | if (s->size == 0) |
910600e9 RS |
2260 | { |
2261 | s->size = htab->plt_header_size; | |
2262 | ||
2263 | /* Allocate space for the .rela.plt.unloaded relocations. */ | |
2264 | if (htab->is_vxworks && !info->shared) | |
2265 | htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2; | |
2266 | } | |
22b75d0a DM |
2267 | |
2268 | /* The procedure linkage table size is bounded by the magnitude | |
2269 | of the offset we can describe in the entry. */ | |
2270 | if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ? | |
e8be8da4 | 2271 | (((bfd_vma)1 << 31) << 1) : 0x400000)) |
22b75d0a DM |
2272 | { |
2273 | bfd_set_error (bfd_error_bad_value); | |
2274 | return FALSE; | |
2275 | } | |
2276 | ||
2277 | if (SPARC_ELF_WORD_BYTES(htab) == 8 | |
2278 | && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE) | |
2279 | { | |
2280 | bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE; | |
2281 | ||
2282 | ||
2283 | off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE; | |
2284 | ||
2285 | h->plt.offset = (s->size - (off * 8)); | |
2286 | } | |
2287 | else | |
2288 | h->plt.offset = s->size; | |
2289 | ||
2290 | /* If this symbol is not defined in a regular file, and we are | |
2291 | not generating a shared library, then set the symbol to this | |
2292 | location in the .plt. This is required to make function | |
2293 | pointers compare as equal between the normal executable and | |
2294 | the shared library. */ | |
2295 | if (! info->shared | |
2296 | && !h->def_regular) | |
2297 | { | |
2298 | h->root.u.def.section = s; | |
2299 | h->root.u.def.value = h->plt.offset; | |
2300 | } | |
2301 | ||
2302 | /* Make room for this entry. */ | |
910600e9 | 2303 | s->size += htab->plt_entry_size; |
22b75d0a DM |
2304 | |
2305 | /* We also need to make an entry in the .rela.plt section. */ | |
d0c9aeb3 DM |
2306 | if (s == htab->elf.splt) |
2307 | htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab); | |
2308 | else | |
2309 | htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab); | |
910600e9 RS |
2310 | |
2311 | if (htab->is_vxworks) | |
2312 | { | |
2313 | /* Allocate space for the .got.plt entry. */ | |
72fbc6e5 | 2314 | htab->elf.sgotplt->size += 4; |
910600e9 RS |
2315 | |
2316 | /* ...and for the .rela.plt.unloaded relocations. */ | |
2317 | if (!info->shared) | |
2318 | htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3; | |
2319 | } | |
22b75d0a DM |
2320 | } |
2321 | else | |
2322 | { | |
2323 | h->plt.offset = (bfd_vma) -1; | |
2324 | h->needs_plt = 0; | |
2325 | } | |
2326 | } | |
2327 | else | |
2328 | { | |
2329 | h->plt.offset = (bfd_vma) -1; | |
2330 | h->needs_plt = 0; | |
2331 | } | |
2332 | ||
2333 | /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary, | |
2334 | make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */ | |
2335 | if (h->got.refcount > 0 | |
2336 | && !info->shared | |
2337 | && h->dynindx == -1 | |
2338 | && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE) | |
2339 | h->got.offset = (bfd_vma) -1; | |
2340 | else if (h->got.refcount > 0) | |
2341 | { | |
2342 | asection *s; | |
2343 | bfd_boolean dyn; | |
2344 | int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type; | |
2345 | ||
2346 | /* Make sure this symbol is output as a dynamic symbol. | |
2347 | Undefined weak syms won't yet be marked as dynamic. */ | |
2348 | if (h->dynindx == -1 | |
2349 | && !h->forced_local) | |
2350 | { | |
2351 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2352 | return FALSE; | |
2353 | } | |
2354 | ||
72fbc6e5 | 2355 | s = htab->elf.sgot; |
22b75d0a DM |
2356 | h->got.offset = s->size; |
2357 | s->size += SPARC_ELF_WORD_BYTES (htab); | |
2358 | /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */ | |
2359 | if (tls_type == GOT_TLS_GD) | |
2360 | s->size += SPARC_ELF_WORD_BYTES (htab); | |
2361 | dyn = htab->elf.dynamic_sections_created; | |
2362 | /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation, | |
2363 | R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if | |
2364 | global. */ | |
2365 | if ((tls_type == GOT_TLS_GD && h->dynindx == -1) | |
d0c9aeb3 DM |
2366 | || tls_type == GOT_TLS_IE |
2367 | || h->type == STT_GNU_IFUNC) | |
72fbc6e5 | 2368 | htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab); |
22b75d0a | 2369 | else if (tls_type == GOT_TLS_GD) |
72fbc6e5 | 2370 | htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab); |
22b75d0a | 2371 | else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)) |
72fbc6e5 | 2372 | htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab); |
22b75d0a DM |
2373 | } |
2374 | else | |
2375 | h->got.offset = (bfd_vma) -1; | |
2376 | ||
2377 | eh = (struct _bfd_sparc_elf_link_hash_entry *) h; | |
2378 | if (eh->dyn_relocs == NULL) | |
2379 | return TRUE; | |
2380 | ||
2381 | /* In the shared -Bsymbolic case, discard space allocated for | |
2382 | dynamic pc-relative relocs against symbols which turn out to be | |
2383 | defined in regular objects. For the normal shared case, discard | |
2384 | space for pc-relative relocs that have become local due to symbol | |
2385 | visibility changes. */ | |
2386 | ||
2387 | if (info->shared) | |
2388 | { | |
72fbc6e5 | 2389 | if (SYMBOL_CALLS_LOCAL (info, h)) |
22b75d0a DM |
2390 | { |
2391 | struct _bfd_sparc_elf_dyn_relocs **pp; | |
2392 | ||
2393 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
2394 | { | |
2395 | p->count -= p->pc_count; | |
2396 | p->pc_count = 0; | |
2397 | if (p->count == 0) | |
2398 | *pp = p->next; | |
2399 | else | |
2400 | pp = &p->next; | |
2401 | } | |
2402 | } | |
22d606e9 | 2403 | |
3348747a NS |
2404 | if (htab->is_vxworks) |
2405 | { | |
2406 | struct _bfd_sparc_elf_dyn_relocs **pp; | |
2407 | ||
2408 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
2409 | { | |
2410 | if (strcmp (p->sec->output_section->name, ".tls_vars") == 0) | |
2411 | *pp = p->next; | |
2412 | else | |
2413 | pp = &p->next; | |
2414 | } | |
2415 | } | |
2416 | ||
22d606e9 AM |
2417 | /* Also discard relocs on undefined weak syms with non-default |
2418 | visibility. */ | |
2419 | if (eh->dyn_relocs != NULL | |
2420 | && h->root.type == bfd_link_hash_undefweak) | |
2421 | { | |
2422 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
2423 | eh->dyn_relocs = NULL; | |
2424 | ||
2425 | /* Make sure undefined weak symbols are output as a dynamic | |
2426 | symbol in PIEs. */ | |
2427 | else if (h->dynindx == -1 | |
2428 | && !h->forced_local) | |
2429 | { | |
2430 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2431 | return FALSE; | |
2432 | } | |
2433 | } | |
22b75d0a DM |
2434 | } |
2435 | else | |
2436 | { | |
2437 | /* For the non-shared case, discard space for relocs against | |
2438 | symbols which turn out to need copy relocs or are not | |
2439 | dynamic. */ | |
2440 | ||
2441 | if (!h->non_got_ref | |
2442 | && ((h->def_dynamic | |
2443 | && !h->def_regular) | |
2444 | || (htab->elf.dynamic_sections_created | |
2445 | && (h->root.type == bfd_link_hash_undefweak | |
2446 | || h->root.type == bfd_link_hash_undefined)))) | |
2447 | { | |
2448 | /* Make sure this symbol is output as a dynamic symbol. | |
2449 | Undefined weak syms won't yet be marked as dynamic. */ | |
2450 | if (h->dynindx == -1 | |
2451 | && !h->forced_local) | |
2452 | { | |
2453 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2454 | return FALSE; | |
2455 | } | |
2456 | ||
2457 | /* If that succeeded, we know we'll be keeping all the | |
2458 | relocs. */ | |
2459 | if (h->dynindx != -1) | |
2460 | goto keep; | |
2461 | } | |
2462 | ||
2463 | eh->dyn_relocs = NULL; | |
2464 | ||
2465 | keep: ; | |
2466 | } | |
2467 | ||
2468 | /* Finally, allocate space. */ | |
2469 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2470 | { | |
2471 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
2472 | sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab); | |
2473 | } | |
2474 | ||
2475 | return TRUE; | |
2476 | } | |
2477 | ||
d0c9aeb3 DM |
2478 | /* Allocate space in .plt, .got and associated reloc sections for |
2479 | local dynamic relocs. */ | |
2480 | ||
2481 | static bfd_boolean | |
2482 | allocate_local_dynrelocs (void **slot, void *inf) | |
2483 | { | |
2484 | struct elf_link_hash_entry *h | |
2485 | = (struct elf_link_hash_entry *) *slot; | |
2486 | ||
2487 | if (h->type != STT_GNU_IFUNC | |
2488 | || !h->def_regular | |
2489 | || !h->ref_regular | |
2490 | || !h->forced_local | |
2491 | || h->root.type != bfd_link_hash_defined) | |
2492 | abort (); | |
2493 | ||
2494 | return allocate_dynrelocs (h, inf); | |
2495 | } | |
2496 | ||
22b75d0a DM |
2497 | /* Find any dynamic relocs that apply to read-only sections. */ |
2498 | ||
2499 | static bfd_boolean | |
2c3fc389 | 2500 | readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf) |
22b75d0a DM |
2501 | { |
2502 | struct _bfd_sparc_elf_link_hash_entry *eh; | |
2503 | struct _bfd_sparc_elf_dyn_relocs *p; | |
2504 | ||
22b75d0a DM |
2505 | eh = (struct _bfd_sparc_elf_link_hash_entry *) h; |
2506 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2507 | { | |
2508 | asection *s = p->sec->output_section; | |
2509 | ||
2510 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2511 | { | |
2512 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
2513 | ||
2514 | info->flags |= DF_TEXTREL; | |
2515 | ||
2516 | /* Not an error, just cut short the traversal. */ | |
2517 | return FALSE; | |
2518 | } | |
2519 | } | |
2520 | return TRUE; | |
2521 | } | |
2522 | ||
2523 | /* Return true if the dynamic symbol for a given section should be | |
2524 | omitted when creating a shared library. */ | |
2525 | ||
2526 | bfd_boolean | |
2527 | _bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd, | |
2528 | struct bfd_link_info *info, | |
2529 | asection *p) | |
2530 | { | |
2531 | /* We keep the .got section symbol so that explicit relocations | |
2532 | against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode | |
2533 | can be turned into relocations against the .got symbol. */ | |
2534 | if (strcmp (p->name, ".got") == 0) | |
2535 | return FALSE; | |
2536 | ||
2537 | return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p); | |
2538 | } | |
2539 | ||
2540 | /* Set the sizes of the dynamic sections. */ | |
2541 | ||
2542 | bfd_boolean | |
2543 | _bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd, | |
2544 | struct bfd_link_info *info) | |
2545 | { | |
2546 | struct _bfd_sparc_elf_link_hash_table *htab; | |
2547 | bfd *dynobj; | |
2548 | asection *s; | |
2549 | bfd *ibfd; | |
2550 | ||
2551 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 2552 | BFD_ASSERT (htab != NULL); |
22b75d0a DM |
2553 | dynobj = htab->elf.dynobj; |
2554 | BFD_ASSERT (dynobj != NULL); | |
2555 | ||
2556 | if (elf_hash_table (info)->dynamic_sections_created) | |
2557 | { | |
2558 | /* Set the contents of the .interp section to the interpreter. */ | |
2559 | if (info->executable) | |
2560 | { | |
3d4d4302 | 2561 | s = bfd_get_linker_section (dynobj, ".interp"); |
22b75d0a DM |
2562 | BFD_ASSERT (s != NULL); |
2563 | s->size = htab->dynamic_interpreter_size; | |
2564 | s->contents = (unsigned char *) htab->dynamic_interpreter; | |
2565 | } | |
2566 | } | |
2567 | ||
2568 | /* Set up .got offsets for local syms, and space for local dynamic | |
2569 | relocs. */ | |
2570 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
2571 | { | |
2572 | bfd_signed_vma *local_got; | |
2573 | bfd_signed_vma *end_local_got; | |
2574 | char *local_tls_type; | |
2575 | bfd_size_type locsymcount; | |
2576 | Elf_Internal_Shdr *symtab_hdr; | |
2577 | asection *srel; | |
2578 | ||
0ffa91dd | 2579 | if (! is_sparc_elf (ibfd)) |
22b75d0a DM |
2580 | continue; |
2581 | ||
2582 | for (s = ibfd->sections; s != NULL; s = s->next) | |
2583 | { | |
2584 | struct _bfd_sparc_elf_dyn_relocs *p; | |
2585 | ||
6edfbbad | 2586 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
22b75d0a DM |
2587 | { |
2588 | if (!bfd_is_abs_section (p->sec) | |
2589 | && bfd_is_abs_section (p->sec->output_section)) | |
2590 | { | |
2591 | /* Input section has been discarded, either because | |
2592 | it is a copy of a linkonce section or due to | |
2593 | linker script /DISCARD/, so we'll be discarding | |
2594 | the relocs too. */ | |
2595 | } | |
3348747a NS |
2596 | else if (htab->is_vxworks |
2597 | && strcmp (p->sec->output_section->name, | |
2598 | ".tls_vars") == 0) | |
2599 | { | |
2600 | /* Relocations in vxworks .tls_vars sections are | |
2601 | handled specially by the loader. */ | |
2602 | } | |
22b75d0a DM |
2603 | else if (p->count != 0) |
2604 | { | |
2605 | srel = elf_section_data (p->sec)->sreloc; | |
d0c9aeb3 DM |
2606 | if (!htab->elf.dynamic_sections_created) |
2607 | srel = htab->elf.irelplt; | |
22b75d0a DM |
2608 | srel->size += p->count * SPARC_ELF_RELA_BYTES (htab); |
2609 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
2610 | info->flags |= DF_TEXTREL; | |
2611 | } | |
2612 | } | |
2613 | } | |
2614 | ||
2615 | local_got = elf_local_got_refcounts (ibfd); | |
2616 | if (!local_got) | |
2617 | continue; | |
2618 | ||
0ffa91dd | 2619 | symtab_hdr = &elf_symtab_hdr (ibfd); |
22b75d0a DM |
2620 | locsymcount = symtab_hdr->sh_info; |
2621 | end_local_got = local_got + locsymcount; | |
2622 | local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd); | |
72fbc6e5 DM |
2623 | s = htab->elf.sgot; |
2624 | srel = htab->elf.srelgot; | |
22b75d0a DM |
2625 | for (; local_got < end_local_got; ++local_got, ++local_tls_type) |
2626 | { | |
2627 | if (*local_got > 0) | |
2628 | { | |
2629 | *local_got = s->size; | |
2630 | s->size += SPARC_ELF_WORD_BYTES (htab); | |
2631 | if (*local_tls_type == GOT_TLS_GD) | |
2632 | s->size += SPARC_ELF_WORD_BYTES (htab); | |
2633 | if (info->shared | |
2634 | || *local_tls_type == GOT_TLS_GD | |
2635 | || *local_tls_type == GOT_TLS_IE) | |
2636 | srel->size += SPARC_ELF_RELA_BYTES (htab); | |
2637 | } | |
2638 | else | |
2639 | *local_got = (bfd_vma) -1; | |
2640 | } | |
2641 | } | |
2642 | ||
2643 | if (htab->tls_ldm_got.refcount > 0) | |
2644 | { | |
2645 | /* Allocate 2 got entries and 1 dynamic reloc for | |
2646 | R_SPARC_TLS_LDM_{HI22,LO10} relocs. */ | |
72fbc6e5 DM |
2647 | htab->tls_ldm_got.offset = htab->elf.sgot->size; |
2648 | htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab)); | |
2649 | htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab); | |
22b75d0a DM |
2650 | } |
2651 | else | |
2652 | htab->tls_ldm_got.offset = -1; | |
2653 | ||
2654 | /* Allocate global sym .plt and .got entries, and space for global | |
2655 | sym dynamic relocs. */ | |
2c3fc389 | 2656 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
22b75d0a | 2657 | |
d0c9aeb3 DM |
2658 | /* Allocate .plt and .got entries, and space for local symbols. */ |
2659 | htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info); | |
2660 | ||
22b75d0a | 2661 | if (! ABI_64_P (output_bfd) |
910600e9 | 2662 | && !htab->is_vxworks |
22b75d0a DM |
2663 | && elf_hash_table (info)->dynamic_sections_created) |
2664 | { | |
2665 | /* Make space for the trailing nop in .plt. */ | |
72fbc6e5 DM |
2666 | if (htab->elf.splt->size > 0) |
2667 | htab->elf.splt->size += 1 * SPARC_INSN_BYTES; | |
22b75d0a DM |
2668 | |
2669 | /* If the .got section is more than 0x1000 bytes, we add | |
2670 | 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13 | |
2671 | bit relocations have a greater chance of working. | |
2672 | ||
2673 | FIXME: Make this optimization work for 64-bit too. */ | |
72fbc6e5 | 2674 | if (htab->elf.sgot->size >= 0x1000 |
22b75d0a DM |
2675 | && elf_hash_table (info)->hgot->root.u.def.value == 0) |
2676 | elf_hash_table (info)->hgot->root.u.def.value = 0x1000; | |
2677 | } | |
2678 | ||
2679 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2680 | determined the sizes of the various dynamic sections. Allocate | |
2681 | memory for them. */ | |
2682 | for (s = dynobj->sections; s != NULL; s = s->next) | |
2683 | { | |
22b75d0a DM |
2684 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2685 | continue; | |
2686 | ||
72fbc6e5 DM |
2687 | if (s == htab->elf.splt |
2688 | || s == htab->elf.sgot | |
910600e9 | 2689 | || s == htab->sdynbss |
d0c9aeb3 | 2690 | || s == htab->elf.iplt |
72fbc6e5 | 2691 | || s == htab->elf.sgotplt) |
22b75d0a | 2692 | { |
c456f082 AM |
2693 | /* Strip this section if we don't need it; see the |
2694 | comment below. */ | |
2695 | } | |
0112cd26 | 2696 | else if (CONST_STRNEQ (s->name, ".rela")) |
c456f082 AM |
2697 | { |
2698 | if (s->size != 0) | |
22b75d0a DM |
2699 | { |
2700 | /* We use the reloc_count field as a counter if we need | |
2701 | to copy relocs into the output file. */ | |
2702 | s->reloc_count = 0; | |
2703 | } | |
2704 | } | |
c456f082 | 2705 | else |
22b75d0a | 2706 | { |
c456f082 | 2707 | /* It's not one of our sections. */ |
22b75d0a DM |
2708 | continue; |
2709 | } | |
2710 | ||
c456f082 | 2711 | if (s->size == 0) |
22b75d0a | 2712 | { |
c456f082 AM |
2713 | /* If we don't need this section, strip it from the |
2714 | output file. This is mostly to handle .rela.bss and | |
2715 | .rela.plt. We must create both sections in | |
2716 | create_dynamic_sections, because they must be created | |
2717 | before the linker maps input sections to output | |
2718 | sections. The linker does that before | |
2719 | adjust_dynamic_symbol is called, and it is that | |
2720 | function which decides whether anything needs to go | |
2721 | into these sections. */ | |
8423293d | 2722 | s->flags |= SEC_EXCLUDE; |
22b75d0a DM |
2723 | continue; |
2724 | } | |
2725 | ||
c456f082 AM |
2726 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
2727 | continue; | |
2728 | ||
22b75d0a DM |
2729 | /* Allocate memory for the section contents. Zero the memory |
2730 | for the benefit of .rela.plt, which has 4 unused entries | |
2731 | at the beginning, and we don't want garbage. */ | |
2732 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); | |
c456f082 | 2733 | if (s->contents == NULL) |
22b75d0a DM |
2734 | return FALSE; |
2735 | } | |
2736 | ||
2737 | if (elf_hash_table (info)->dynamic_sections_created) | |
2738 | { | |
2739 | /* Add some entries to the .dynamic section. We fill in the | |
2740 | values later, in _bfd_sparc_elf_finish_dynamic_sections, but we | |
2741 | must add the entries now so that we get the correct size for | |
2742 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2743 | dynamic linker and used by the debugger. */ | |
2744 | #define add_dynamic_entry(TAG, VAL) \ | |
2745 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
2746 | ||
2747 | if (info->executable) | |
2748 | { | |
2749 | if (!add_dynamic_entry (DT_DEBUG, 0)) | |
2750 | return FALSE; | |
2751 | } | |
2752 | ||
72fbc6e5 | 2753 | if (htab->elf.srelplt->size != 0) |
22b75d0a DM |
2754 | { |
2755 | if (!add_dynamic_entry (DT_PLTGOT, 0) | |
2756 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
2757 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2758 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
2759 | return FALSE; | |
2760 | } | |
2761 | ||
2762 | if (!add_dynamic_entry (DT_RELA, 0) | |
2763 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2764 | || !add_dynamic_entry (DT_RELAENT, | |
2765 | SPARC_ELF_RELA_BYTES (htab))) | |
2766 | return FALSE; | |
2767 | ||
2768 | /* If any dynamic relocs apply to a read-only section, | |
2769 | then we need a DT_TEXTREL entry. */ | |
2770 | if ((info->flags & DF_TEXTREL) == 0) | |
2c3fc389 | 2771 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info); |
22b75d0a DM |
2772 | |
2773 | if (info->flags & DF_TEXTREL) | |
2774 | { | |
2775 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
2776 | return FALSE; | |
2777 | } | |
2778 | ||
2779 | if (ABI_64_P (output_bfd)) | |
2780 | { | |
2781 | int reg; | |
2782 | struct _bfd_sparc_elf_app_reg * app_regs; | |
2783 | struct elf_strtab_hash *dynstr; | |
2784 | struct elf_link_hash_table *eht = elf_hash_table (info); | |
2785 | ||
2786 | /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER | |
2787 | entries if needed. */ | |
2788 | app_regs = _bfd_sparc_elf_hash_table (info)->app_regs; | |
2789 | dynstr = eht->dynstr; | |
2790 | ||
2791 | for (reg = 0; reg < 4; reg++) | |
2792 | if (app_regs [reg].name != NULL) | |
2793 | { | |
2794 | struct elf_link_local_dynamic_entry *entry, *e; | |
2795 | ||
2796 | if (!add_dynamic_entry (DT_SPARC_REGISTER, 0)) | |
2797 | return FALSE; | |
2798 | ||
2799 | entry = (struct elf_link_local_dynamic_entry *) | |
2800 | bfd_hash_allocate (&info->hash->table, sizeof (*entry)); | |
2801 | if (entry == NULL) | |
2802 | return FALSE; | |
2803 | ||
2804 | /* We cheat here a little bit: the symbol will not be local, so we | |
2805 | put it at the end of the dynlocal linked list. We will fix it | |
2806 | later on, as we have to fix other fields anyway. */ | |
2807 | entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4; | |
2808 | entry->isym.st_size = 0; | |
2809 | if (*app_regs [reg].name != '\0') | |
2810 | entry->isym.st_name | |
2811 | = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE); | |
2812 | else | |
2813 | entry->isym.st_name = 0; | |
2814 | entry->isym.st_other = 0; | |
2815 | entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind, | |
2816 | STT_REGISTER); | |
2817 | entry->isym.st_shndx = app_regs [reg].shndx; | |
35fc36a8 | 2818 | entry->isym.st_target_internal = 0; |
22b75d0a DM |
2819 | entry->next = NULL; |
2820 | entry->input_bfd = output_bfd; | |
2821 | entry->input_indx = -1; | |
2822 | ||
2823 | if (eht->dynlocal == NULL) | |
2824 | eht->dynlocal = entry; | |
2825 | else | |
2826 | { | |
2827 | for (e = eht->dynlocal; e->next; e = e->next) | |
2828 | ; | |
2829 | e->next = entry; | |
2830 | } | |
2831 | eht->dynsymcount++; | |
2832 | } | |
2833 | } | |
7a2b07ff NS |
2834 | if (htab->is_vxworks |
2835 | && !elf_vxworks_add_dynamic_entries (output_bfd, info)) | |
2836 | return FALSE; | |
22b75d0a DM |
2837 | } |
2838 | #undef add_dynamic_entry | |
2839 | ||
2840 | return TRUE; | |
2841 | } | |
2842 | \f | |
2843 | bfd_boolean | |
2844 | _bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec) | |
2845 | { | |
f592407e AM |
2846 | if (!sec->used_by_bfd) |
2847 | { | |
2848 | struct _bfd_sparc_elf_section_data *sdata; | |
2849 | bfd_size_type amt = sizeof (*sdata); | |
22b75d0a | 2850 | |
f592407e AM |
2851 | sdata = bfd_zalloc (abfd, amt); |
2852 | if (sdata == NULL) | |
2853 | return FALSE; | |
2854 | sec->used_by_bfd = sdata; | |
2855 | } | |
22b75d0a DM |
2856 | |
2857 | return _bfd_elf_new_section_hook (abfd, sec); | |
2858 | } | |
2859 | ||
2860 | bfd_boolean | |
2861 | _bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED, | |
2862 | struct bfd_section *section, | |
2863 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED, | |
2864 | bfd_boolean *again) | |
2865 | { | |
c8a1f254 NS |
2866 | if (link_info->relocatable) |
2867 | (*link_info->callbacks->einfo) | |
2868 | (_("%P%F: --relax and -r may not be used together\n")); | |
2869 | ||
22b75d0a DM |
2870 | *again = FALSE; |
2871 | sec_do_relax (section) = 1; | |
2872 | return TRUE; | |
2873 | } | |
2874 | \f | |
2875 | /* Return the base VMA address which should be subtracted from real addresses | |
2876 | when resolving @dtpoff relocation. | |
2877 | This is PT_TLS segment p_vaddr. */ | |
2878 | ||
2879 | static bfd_vma | |
2880 | dtpoff_base (struct bfd_link_info *info) | |
2881 | { | |
2882 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
2883 | if (elf_hash_table (info)->tls_sec == NULL) | |
2884 | return 0; | |
2885 | return elf_hash_table (info)->tls_sec->vma; | |
2886 | } | |
2887 | ||
2888 | /* Return the relocation value for @tpoff relocation | |
2889 | if STT_TLS virtual address is ADDRESS. */ | |
2890 | ||
2891 | static bfd_vma | |
2892 | tpoff (struct bfd_link_info *info, bfd_vma address) | |
2893 | { | |
2894 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
1360ba76 RO |
2895 | const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd); |
2896 | bfd_vma static_tls_size; | |
22b75d0a DM |
2897 | |
2898 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
2899 | if (htab->tls_sec == NULL) | |
2900 | return 0; | |
1360ba76 RO |
2901 | |
2902 | /* Consider special static TLS alignment requirements. */ | |
2903 | static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment); | |
2904 | return address - static_tls_size - htab->tls_sec->vma; | |
22b75d0a DM |
2905 | } |
2906 | ||
00c50991 DM |
2907 | /* Return the relocation value for a %gdop relocation. */ |
2908 | ||
2909 | static bfd_vma | |
2910 | gdopoff (struct bfd_link_info *info, bfd_vma address) | |
2911 | { | |
2912 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
2913 | bfd_vma got_base; | |
2914 | ||
2915 | got_base = (htab->hgot->root.u.def.value | |
2916 | + htab->hgot->root.u.def.section->output_offset | |
2917 | + htab->hgot->root.u.def.section->output_section->vma); | |
2918 | ||
2919 | return address - got_base; | |
2920 | } | |
2921 | ||
22b75d0a DM |
2922 | /* Relocate a SPARC ELF section. */ |
2923 | ||
2924 | bfd_boolean | |
ab96bf03 AM |
2925 | _bfd_sparc_elf_relocate_section (bfd *output_bfd, |
2926 | struct bfd_link_info *info, | |
2927 | bfd *input_bfd, | |
2928 | asection *input_section, | |
2929 | bfd_byte *contents, | |
2930 | Elf_Internal_Rela *relocs, | |
2931 | Elf_Internal_Sym *local_syms, | |
2932 | asection **local_sections) | |
22b75d0a DM |
2933 | { |
2934 | struct _bfd_sparc_elf_link_hash_table *htab; | |
2935 | Elf_Internal_Shdr *symtab_hdr; | |
2936 | struct elf_link_hash_entry **sym_hashes; | |
2937 | bfd_vma *local_got_offsets; | |
2938 | bfd_vma got_base; | |
2939 | asection *sreloc; | |
2940 | Elf_Internal_Rela *rel; | |
2941 | Elf_Internal_Rela *relend; | |
2942 | int num_relocs; | |
3348747a | 2943 | bfd_boolean is_vxworks_tls; |
22b75d0a | 2944 | |
22b75d0a | 2945 | htab = _bfd_sparc_elf_hash_table (info); |
4dfe6ac6 | 2946 | BFD_ASSERT (htab != NULL); |
0ffa91dd | 2947 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
22b75d0a DM |
2948 | sym_hashes = elf_sym_hashes (input_bfd); |
2949 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
2950 | ||
2951 | if (elf_hash_table (info)->hgot == NULL) | |
2952 | got_base = 0; | |
2953 | else | |
2954 | got_base = elf_hash_table (info)->hgot->root.u.def.value; | |
2955 | ||
2956 | sreloc = elf_section_data (input_section)->sreloc; | |
3348747a NS |
2957 | /* We have to handle relocations in vxworks .tls_vars sections |
2958 | specially, because the dynamic loader is 'weird'. */ | |
2959 | is_vxworks_tls = (htab->is_vxworks && info->shared | |
2960 | && !strcmp (input_section->output_section->name, | |
2961 | ".tls_vars")); | |
22b75d0a DM |
2962 | |
2963 | rel = relocs; | |
2964 | if (ABI_64_P (output_bfd)) | |
d4730f92 | 2965 | num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section)); |
22b75d0a DM |
2966 | else |
2967 | num_relocs = input_section->reloc_count; | |
2968 | relend = relocs + num_relocs; | |
2969 | for (; rel < relend; rel++) | |
2970 | { | |
2971 | int r_type, tls_type; | |
2972 | reloc_howto_type *howto; | |
2973 | unsigned long r_symndx; | |
2974 | struct elf_link_hash_entry *h; | |
2975 | Elf_Internal_Sym *sym; | |
2976 | asection *sec; | |
2977 | bfd_vma relocation, off; | |
2978 | bfd_reloc_status_type r; | |
2979 | bfd_boolean is_plt = FALSE; | |
2980 | bfd_boolean unresolved_reloc; | |
2981 | ||
2982 | r_type = SPARC_ELF_R_TYPE (rel->r_info); | |
2983 | if (r_type == R_SPARC_GNU_VTINHERIT | |
2984 | || r_type == R_SPARC_GNU_VTENTRY) | |
2985 | continue; | |
2986 | ||
2987 | if (r_type < 0 || r_type >= (int) R_SPARC_max_std) | |
2988 | { | |
2989 | bfd_set_error (bfd_error_bad_value); | |
2990 | return FALSE; | |
2991 | } | |
2992 | howto = _bfd_sparc_elf_howto_table + r_type; | |
2993 | ||
22b75d0a DM |
2994 | r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info); |
2995 | h = NULL; | |
2996 | sym = NULL; | |
2997 | sec = NULL; | |
2998 | unresolved_reloc = FALSE; | |
2999 | if (r_symndx < symtab_hdr->sh_info) | |
3000 | { | |
3001 | sym = local_syms + r_symndx; | |
3002 | sec = local_sections[r_symndx]; | |
3003 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
d0c9aeb3 DM |
3004 | |
3005 | if (!info->relocatable | |
3006 | && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
3007 | { | |
3008 | /* Relocate against local STT_GNU_IFUNC symbol. */ | |
3009 | h = elf_sparc_get_local_sym_hash (htab, input_bfd, | |
3010 | rel, FALSE); | |
3011 | if (h == NULL) | |
3012 | abort (); | |
3013 | ||
68ffbac6 | 3014 | /* Set STT_GNU_IFUNC symbol value. */ |
d0c9aeb3 DM |
3015 | h->root.u.def.value = sym->st_value; |
3016 | h->root.u.def.section = sec; | |
3017 | } | |
22b75d0a DM |
3018 | } |
3019 | else | |
3020 | { | |
62d887d4 | 3021 | bfd_boolean warned, ignored; |
22b75d0a DM |
3022 | |
3023 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
3024 | r_symndx, symtab_hdr, sym_hashes, | |
3025 | h, sec, relocation, | |
62d887d4 | 3026 | unresolved_reloc, warned, ignored); |
22b75d0a DM |
3027 | if (warned) |
3028 | { | |
3029 | /* To avoid generating warning messages about truncated | |
3030 | relocations, set the relocation's address to be the same as | |
3031 | the start of this section. */ | |
3032 | if (input_section->output_section != NULL) | |
3033 | relocation = input_section->output_section->vma; | |
3034 | else | |
3035 | relocation = 0; | |
3036 | } | |
3037 | } | |
3038 | ||
dbaa2011 | 3039 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 3040 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 3041 | rel, 1, relend, howto, 0, contents); |
ab96bf03 AM |
3042 | |
3043 | if (info->relocatable) | |
3044 | continue; | |
3045 | ||
d0c9aeb3 DM |
3046 | if (h != NULL |
3047 | && h->type == STT_GNU_IFUNC | |
3048 | && h->def_regular) | |
3049 | { | |
3050 | asection *plt_sec; | |
3051 | const char *name; | |
3052 | ||
3053 | if ((input_section->flags & SEC_ALLOC) == 0 | |
3054 | || h->plt.offset == (bfd_vma) -1) | |
3055 | abort (); | |
3056 | ||
3057 | plt_sec = htab->elf.splt; | |
3058 | if (! plt_sec) | |
3059 | plt_sec =htab->elf.iplt; | |
3060 | ||
3061 | switch (r_type) | |
3062 | { | |
00c50991 DM |
3063 | case R_SPARC_GOTDATA_OP: |
3064 | continue; | |
3065 | ||
d0c9aeb3 DM |
3066 | case R_SPARC_GOTDATA_OP_HIX22: |
3067 | case R_SPARC_GOTDATA_OP_LOX10: | |
00c50991 DM |
3068 | r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22 |
3069 | ? R_SPARC_GOT22 | |
3070 | : R_SPARC_GOT10); | |
3071 | howto = _bfd_sparc_elf_howto_table + r_type; | |
3072 | /* Fall through. */ | |
3073 | ||
d0c9aeb3 DM |
3074 | case R_SPARC_GOT10: |
3075 | case R_SPARC_GOT13: | |
3076 | case R_SPARC_GOT22: | |
3077 | if (htab->elf.sgot == NULL) | |
3078 | abort (); | |
3079 | off = h->got.offset; | |
3080 | if (off == (bfd_vma) -1) | |
3081 | abort(); | |
3082 | relocation = htab->elf.sgot->output_offset + off - got_base; | |
3083 | goto do_relocation; | |
3084 | ||
3085 | case R_SPARC_WPLT30: | |
3086 | case R_SPARC_WDISP30: | |
3087 | relocation = (plt_sec->output_section->vma | |
3088 | + plt_sec->output_offset + h->plt.offset); | |
3089 | goto do_relocation; | |
3090 | ||
3091 | case R_SPARC_32: | |
3092 | case R_SPARC_64: | |
3093 | if (info->shared && h->non_got_ref) | |
3094 | { | |
3095 | Elf_Internal_Rela outrel; | |
3096 | bfd_vma offset; | |
3097 | ||
3098 | offset = _bfd_elf_section_offset (output_bfd, info, | |
3099 | input_section, | |
3100 | rel->r_offset); | |
3101 | if (offset == (bfd_vma) -1 | |
3102 | || offset == (bfd_vma) -2) | |
3103 | abort(); | |
3104 | ||
3105 | outrel.r_offset = (input_section->output_section->vma | |
3106 | + input_section->output_offset | |
3107 | + offset); | |
3108 | ||
3109 | if (h->dynindx == -1 | |
3110 | || h->forced_local | |
3111 | || info->executable) | |
3112 | { | |
3113 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, | |
3114 | 0, R_SPARC_IRELATIVE); | |
3115 | outrel.r_addend = relocation + rel->r_addend; | |
3116 | } | |
3117 | else | |
3118 | { | |
3119 | if (h->dynindx == -1) | |
3120 | abort(); | |
3121 | outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type); | |
3122 | outrel.r_addend = rel->r_addend; | |
3123 | } | |
3124 | ||
3125 | sparc_elf_append_rela (output_bfd, sreloc, &outrel); | |
3126 | continue; | |
3127 | } | |
3128 | ||
3129 | relocation = (plt_sec->output_section->vma | |
3130 | + plt_sec->output_offset + h->plt.offset); | |
3131 | goto do_relocation; | |
3132 | ||
3133 | case R_SPARC_HI22: | |
3134 | case R_SPARC_LO10: | |
3135 | /* We should only see such relocs in static links. */ | |
3136 | if (info->shared) | |
3137 | abort(); | |
3138 | relocation = (plt_sec->output_section->vma | |
3139 | + plt_sec->output_offset + h->plt.offset); | |
3140 | goto do_relocation; | |
3141 | ||
3142 | default: | |
3143 | if (h->root.root.string) | |
3144 | name = h->root.root.string; | |
3145 | else | |
3146 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, | |
3147 | NULL); | |
3148 | (*_bfd_error_handler) | |
3149 | (_("%B: relocation %s against STT_GNU_IFUNC " | |
3150 | "symbol `%s' isn't handled by %s"), input_bfd, | |
3151 | _bfd_sparc_elf_howto_table[r_type].name, | |
3152 | name, __FUNCTION__); | |
3153 | bfd_set_error (bfd_error_bad_value); | |
3154 | return FALSE; | |
3155 | } | |
3156 | } | |
3157 | ||
22b75d0a DM |
3158 | switch (r_type) |
3159 | { | |
739f7f82 DM |
3160 | case R_SPARC_GOTDATA_OP_HIX22: |
3161 | case R_SPARC_GOTDATA_OP_LOX10: | |
00c50991 DM |
3162 | if (SYMBOL_REFERENCES_LOCAL (info, h)) |
3163 | r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22 | |
3164 | ? R_SPARC_GOTDATA_HIX22 | |
3165 | : R_SPARC_GOTDATA_LOX10); | |
739f7f82 | 3166 | else |
00c50991 DM |
3167 | r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22 |
3168 | ? R_SPARC_GOT22 | |
3169 | : R_SPARC_GOT10); | |
3170 | howto = _bfd_sparc_elf_howto_table + r_type; | |
3171 | break; | |
3172 | ||
3173 | case R_SPARC_GOTDATA_OP: | |
3174 | if (SYMBOL_REFERENCES_LOCAL (info, h)) | |
3175 | { | |
3176 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3177 | ||
3178 | /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */ | |
3179 | relocation = 0x80000000 | (insn & 0x3e07c01f); | |
3180 | bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); | |
3181 | } | |
3182 | continue; | |
3183 | } | |
3184 | ||
3185 | switch (r_type) | |
3186 | { | |
3187 | case R_SPARC_GOTDATA_HIX22: | |
3188 | case R_SPARC_GOTDATA_LOX10: | |
3189 | relocation = gdopoff (info, relocation); | |
3190 | break; | |
739f7f82 | 3191 | |
22b75d0a DM |
3192 | case R_SPARC_GOT10: |
3193 | case R_SPARC_GOT13: | |
3194 | case R_SPARC_GOT22: | |
3195 | /* Relocation is to the entry for this symbol in the global | |
3196 | offset table. */ | |
72fbc6e5 | 3197 | if (htab->elf.sgot == NULL) |
22b75d0a DM |
3198 | abort (); |
3199 | ||
3200 | if (h != NULL) | |
3201 | { | |
3202 | bfd_boolean dyn; | |
3203 | ||
3204 | off = h->got.offset; | |
3205 | BFD_ASSERT (off != (bfd_vma) -1); | |
3206 | dyn = elf_hash_table (info)->dynamic_sections_created; | |
3207 | ||
3208 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) | |
3209 | || (info->shared | |
72fbc6e5 | 3210 | && SYMBOL_REFERENCES_LOCAL (info, h))) |
22b75d0a DM |
3211 | { |
3212 | /* This is actually a static link, or it is a | |
3213 | -Bsymbolic link and the symbol is defined | |
3214 | locally, or the symbol was forced to be local | |
3215 | because of a version file. We must initialize | |
3216 | this entry in the global offset table. Since the | |
3217 | offset must always be a multiple of 8 for 64-bit | |
3218 | and 4 for 32-bit, we use the least significant bit | |
3219 | to record whether we have initialized it already. | |
3220 | ||
3221 | When doing a dynamic link, we create a .rela.got | |
3222 | relocation entry to initialize the value. This | |
3223 | is done in the finish_dynamic_symbol routine. */ | |
3224 | if ((off & 1) != 0) | |
3225 | off &= ~1; | |
3226 | else | |
3227 | { | |
3228 | SPARC_ELF_PUT_WORD (htab, output_bfd, relocation, | |
72fbc6e5 | 3229 | htab->elf.sgot->contents + off); |
22b75d0a DM |
3230 | h->got.offset |= 1; |
3231 | } | |
3232 | } | |
3233 | else | |
3234 | unresolved_reloc = FALSE; | |
3235 | } | |
3236 | else | |
3237 | { | |
3238 | BFD_ASSERT (local_got_offsets != NULL | |
3239 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
3240 | ||
3241 | off = local_got_offsets[r_symndx]; | |
3242 | ||
3243 | /* The offset must always be a multiple of 8 on 64-bit and | |
3244 | 4 on 32-bit. We use the least significant bit to record | |
3245 | whether we have already processed this entry. */ | |
3246 | if ((off & 1) != 0) | |
3247 | off &= ~1; | |
3248 | else | |
3249 | { | |
3250 | ||
3251 | if (info->shared) | |
3252 | { | |
3253 | asection *s; | |
3254 | Elf_Internal_Rela outrel; | |
3255 | ||
3256 | /* We need to generate a R_SPARC_RELATIVE reloc | |
3257 | for the dynamic linker. */ | |
72fbc6e5 | 3258 | s = htab->elf.srelgot; |
22b75d0a DM |
3259 | BFD_ASSERT (s != NULL); |
3260 | ||
72fbc6e5 DM |
3261 | outrel.r_offset = (htab->elf.sgot->output_section->vma |
3262 | + htab->elf.sgot->output_offset | |
22b75d0a DM |
3263 | + off); |
3264 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, | |
3265 | 0, R_SPARC_RELATIVE); | |
3266 | outrel.r_addend = relocation; | |
3267 | relocation = 0; | |
39817122 | 3268 | sparc_elf_append_rela (output_bfd, s, &outrel); |
22b75d0a DM |
3269 | } |
3270 | ||
3271 | SPARC_ELF_PUT_WORD (htab, output_bfd, relocation, | |
72fbc6e5 | 3272 | htab->elf.sgot->contents + off); |
22b75d0a DM |
3273 | local_got_offsets[r_symndx] |= 1; |
3274 | } | |
3275 | } | |
72fbc6e5 | 3276 | relocation = htab->elf.sgot->output_offset + off - got_base; |
22b75d0a DM |
3277 | break; |
3278 | ||
3279 | case R_SPARC_PLT32: | |
3280 | case R_SPARC_PLT64: | |
3281 | if (h == NULL || h->plt.offset == (bfd_vma) -1) | |
3282 | { | |
3283 | r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64; | |
3284 | goto r_sparc_plt32; | |
3285 | } | |
3286 | /* Fall through. */ | |
3287 | ||
3288 | case R_SPARC_WPLT30: | |
3289 | case R_SPARC_HIPLT22: | |
3290 | case R_SPARC_LOPLT10: | |
3291 | case R_SPARC_PCPLT32: | |
3292 | case R_SPARC_PCPLT22: | |
3293 | case R_SPARC_PCPLT10: | |
3294 | r_sparc_wplt30: | |
3295 | /* Relocation is to the entry for this symbol in the | |
3296 | procedure linkage table. */ | |
3297 | ||
3298 | if (! ABI_64_P (output_bfd)) | |
3299 | { | |
3300 | /* The Solaris native assembler will generate a WPLT30 reloc | |
3301 | for a local symbol if you assemble a call from one | |
3302 | section to another when using -K pic. We treat it as | |
3303 | WDISP30. */ | |
3304 | if (h == NULL) | |
3305 | break; | |
3306 | } | |
68ffbac6 | 3307 | /* PR 7027: We need similar behaviour for 64-bit binaries. */ |
af1fb11f NC |
3308 | else if (r_type == R_SPARC_WPLT30 && h == NULL) |
3309 | break; | |
22b75d0a DM |
3310 | else |
3311 | { | |
3312 | BFD_ASSERT (h != NULL); | |
3313 | } | |
3314 | ||
72fbc6e5 | 3315 | if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL) |
22b75d0a DM |
3316 | { |
3317 | /* We didn't make a PLT entry for this symbol. This | |
3318 | happens when statically linking PIC code, or when | |
3319 | using -Bsymbolic. */ | |
3320 | break; | |
3321 | } | |
3322 | ||
72fbc6e5 DM |
3323 | relocation = (htab->elf.splt->output_section->vma |
3324 | + htab->elf.splt->output_offset | |
22b75d0a DM |
3325 | + h->plt.offset); |
3326 | unresolved_reloc = FALSE; | |
3327 | if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64) | |
3328 | { | |
3329 | r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64; | |
3330 | is_plt = TRUE; | |
3331 | goto r_sparc_plt32; | |
3332 | } | |
3333 | break; | |
3334 | ||
3335 | case R_SPARC_PC10: | |
3336 | case R_SPARC_PC22: | |
3337 | case R_SPARC_PC_HH22: | |
3338 | case R_SPARC_PC_HM10: | |
3339 | case R_SPARC_PC_LM22: | |
3340 | if (h != NULL | |
3341 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
3342 | break; | |
3343 | /* Fall through. */ | |
3344 | case R_SPARC_DISP8: | |
3345 | case R_SPARC_DISP16: | |
3346 | case R_SPARC_DISP32: | |
3347 | case R_SPARC_DISP64: | |
3348 | case R_SPARC_WDISP30: | |
3349 | case R_SPARC_WDISP22: | |
3350 | case R_SPARC_WDISP19: | |
3351 | case R_SPARC_WDISP16: | |
2615994e | 3352 | case R_SPARC_WDISP10: |
22b75d0a DM |
3353 | case R_SPARC_8: |
3354 | case R_SPARC_16: | |
3355 | case R_SPARC_32: | |
3356 | case R_SPARC_HI22: | |
3357 | case R_SPARC_22: | |
3358 | case R_SPARC_13: | |
3359 | case R_SPARC_LO10: | |
3360 | case R_SPARC_UA16: | |
3361 | case R_SPARC_UA32: | |
3362 | case R_SPARC_10: | |
3363 | case R_SPARC_11: | |
3364 | case R_SPARC_64: | |
3365 | case R_SPARC_OLO10: | |
3366 | case R_SPARC_HH22: | |
3367 | case R_SPARC_HM10: | |
3368 | case R_SPARC_LM22: | |
3369 | case R_SPARC_7: | |
3370 | case R_SPARC_5: | |
3371 | case R_SPARC_6: | |
3372 | case R_SPARC_HIX22: | |
3373 | case R_SPARC_LOX10: | |
3374 | case R_SPARC_H44: | |
3375 | case R_SPARC_M44: | |
3376 | case R_SPARC_L44: | |
2615994e | 3377 | case R_SPARC_H34: |
22b75d0a DM |
3378 | case R_SPARC_UA64: |
3379 | r_sparc_plt32: | |
3348747a NS |
3380 | if ((input_section->flags & SEC_ALLOC) == 0 |
3381 | || is_vxworks_tls) | |
22b75d0a DM |
3382 | break; |
3383 | ||
3384 | if ((info->shared | |
3385 | && (h == NULL | |
3386 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
3387 | || h->root.type != bfd_link_hash_undefweak) | |
3388 | && (! howto->pc_relative | |
72fbc6e5 | 3389 | || !SYMBOL_CALLS_LOCAL (info, h))) |
22b75d0a DM |
3390 | || (!info->shared |
3391 | && h != NULL | |
3392 | && h->dynindx != -1 | |
3393 | && !h->non_got_ref | |
3394 | && ((h->def_dynamic | |
3395 | && !h->def_regular) | |
3396 | || h->root.type == bfd_link_hash_undefweak | |
3397 | || h->root.type == bfd_link_hash_undefined))) | |
3398 | { | |
3399 | Elf_Internal_Rela outrel; | |
3400 | bfd_boolean skip, relocate = FALSE; | |
3401 | ||
3402 | /* When generating a shared object, these relocations | |
3403 | are copied into the output file to be resolved at run | |
3404 | time. */ | |
3405 | ||
3406 | BFD_ASSERT (sreloc != NULL); | |
3407 | ||
3408 | skip = FALSE; | |
3409 | ||
3410 | outrel.r_offset = | |
3411 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
3412 | rel->r_offset); | |
3413 | if (outrel.r_offset == (bfd_vma) -1) | |
3414 | skip = TRUE; | |
3415 | else if (outrel.r_offset == (bfd_vma) -2) | |
3416 | skip = TRUE, relocate = TRUE; | |
3417 | outrel.r_offset += (input_section->output_section->vma | |
3418 | + input_section->output_offset); | |
3419 | ||
3420 | /* Optimize unaligned reloc usage now that we know where | |
3421 | it finally resides. */ | |
3422 | switch (r_type) | |
3423 | { | |
3424 | case R_SPARC_16: | |
3425 | if (outrel.r_offset & 1) | |
3426 | r_type = R_SPARC_UA16; | |
3427 | break; | |
3428 | case R_SPARC_UA16: | |
3429 | if (!(outrel.r_offset & 1)) | |
3430 | r_type = R_SPARC_16; | |
3431 | break; | |
3432 | case R_SPARC_32: | |
3433 | if (outrel.r_offset & 3) | |
3434 | r_type = R_SPARC_UA32; | |
3435 | break; | |
3436 | case R_SPARC_UA32: | |
3437 | if (!(outrel.r_offset & 3)) | |
3438 | r_type = R_SPARC_32; | |
3439 | break; | |
3440 | case R_SPARC_64: | |
3441 | if (outrel.r_offset & 7) | |
3442 | r_type = R_SPARC_UA64; | |
3443 | break; | |
3444 | case R_SPARC_UA64: | |
3445 | if (!(outrel.r_offset & 7)) | |
3446 | r_type = R_SPARC_64; | |
3447 | break; | |
3448 | case R_SPARC_DISP8: | |
3449 | case R_SPARC_DISP16: | |
3450 | case R_SPARC_DISP32: | |
3451 | case R_SPARC_DISP64: | |
3452 | /* If the symbol is not dynamic, we should not keep | |
3453 | a dynamic relocation. But an .rela.* slot has been | |
3454 | allocated for it, output R_SPARC_NONE. | |
3455 | FIXME: Add code tracking needed dynamic relocs as | |
3456 | e.g. i386 has. */ | |
3457 | if (h->dynindx == -1) | |
3458 | skip = TRUE, relocate = TRUE; | |
3459 | break; | |
3460 | } | |
3461 | ||
3462 | if (skip) | |
3463 | memset (&outrel, 0, sizeof outrel); | |
3464 | /* h->dynindx may be -1 if the symbol was marked to | |
3465 | become local. */ | |
72fbc6e5 DM |
3466 | else if (h != NULL && |
3467 | h->dynindx != -1 | |
3468 | && (! is_plt | |
3469 | || !info->shared | |
3470 | || !SYMBOLIC_BIND (info, h) | |
22b75d0a DM |
3471 | || !h->def_regular)) |
3472 | { | |
3473 | BFD_ASSERT (h->dynindx != -1); | |
3474 | outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type); | |
3475 | outrel.r_addend = rel->r_addend; | |
3476 | } | |
3477 | else | |
3478 | { | |
3479 | if (r_type == R_SPARC_32 || r_type == R_SPARC_64) | |
3480 | { | |
3481 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, | |
3482 | 0, R_SPARC_RELATIVE); | |
3483 | outrel.r_addend = relocation + rel->r_addend; | |
3484 | } | |
3485 | else | |
3486 | { | |
3487 | long indx; | |
3488 | ||
74541ad4 AM |
3489 | outrel.r_addend = relocation + rel->r_addend; |
3490 | ||
22b75d0a | 3491 | if (is_plt) |
72fbc6e5 | 3492 | sec = htab->elf.splt; |
22b75d0a DM |
3493 | |
3494 | if (bfd_is_abs_section (sec)) | |
3495 | indx = 0; | |
3496 | else if (sec == NULL || sec->owner == NULL) | |
3497 | { | |
3498 | bfd_set_error (bfd_error_bad_value); | |
3499 | return FALSE; | |
3500 | } | |
3501 | else | |
3502 | { | |
3503 | asection *osec; | |
3504 | ||
74541ad4 AM |
3505 | /* We are turning this relocation into one |
3506 | against a section symbol. It would be | |
3507 | proper to subtract the symbol's value, | |
3508 | osec->vma, from the emitted reloc addend, | |
3509 | but ld.so expects buggy relocs. */ | |
22b75d0a DM |
3510 | osec = sec->output_section; |
3511 | indx = elf_section_data (osec)->dynindx; | |
3512 | ||
74541ad4 AM |
3513 | if (indx == 0) |
3514 | { | |
3515 | osec = htab->elf.text_index_section; | |
3516 | indx = elf_section_data (osec)->dynindx; | |
3517 | } | |
3518 | ||
22b75d0a DM |
3519 | /* FIXME: we really should be able to link non-pic |
3520 | shared libraries. */ | |
3521 | if (indx == 0) | |
3522 | { | |
3523 | BFD_FAIL (); | |
3524 | (*_bfd_error_handler) | |
3525 | (_("%B: probably compiled without -fPIC?"), | |
3526 | input_bfd); | |
3527 | bfd_set_error (bfd_error_bad_value); | |
3528 | return FALSE; | |
3529 | } | |
3530 | } | |
3531 | ||
74541ad4 AM |
3532 | outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx, |
3533 | r_type); | |
22b75d0a DM |
3534 | } |
3535 | } | |
3536 | ||
39817122 | 3537 | sparc_elf_append_rela (output_bfd, sreloc, &outrel); |
22b75d0a DM |
3538 | |
3539 | /* This reloc will be computed at runtime, so there's no | |
3540 | need to do anything now. */ | |
3541 | if (! relocate) | |
3542 | continue; | |
3543 | } | |
3544 | break; | |
3545 | ||
3546 | case R_SPARC_TLS_GD_HI22: | |
3547 | if (! ABI_64_P (input_bfd) | |
3548 | && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd) | |
3549 | { | |
3550 | /* R_SPARC_REV32 used the same reloc number as | |
3551 | R_SPARC_TLS_GD_HI22. */ | |
3552 | r_type = R_SPARC_REV32; | |
3553 | break; | |
3554 | } | |
3555 | /* Fall through */ | |
3556 | ||
3557 | case R_SPARC_TLS_GD_LO10: | |
3558 | case R_SPARC_TLS_IE_HI22: | |
3559 | case R_SPARC_TLS_IE_LO10: | |
3560 | r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL); | |
3561 | tls_type = GOT_UNKNOWN; | |
3562 | if (h == NULL && local_got_offsets) | |
3563 | tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx]; | |
3564 | else if (h != NULL) | |
3565 | { | |
3566 | tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type; | |
3567 | if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE) | |
3568 | switch (SPARC_ELF_R_TYPE (rel->r_info)) | |
3569 | { | |
3570 | case R_SPARC_TLS_GD_HI22: | |
3571 | case R_SPARC_TLS_IE_HI22: | |
3572 | r_type = R_SPARC_TLS_LE_HIX22; | |
3573 | break; | |
3574 | default: | |
3575 | r_type = R_SPARC_TLS_LE_LOX10; | |
3576 | break; | |
3577 | } | |
3578 | } | |
3579 | if (tls_type == GOT_TLS_IE) | |
3580 | switch (r_type) | |
3581 | { | |
3582 | case R_SPARC_TLS_GD_HI22: | |
3583 | r_type = R_SPARC_TLS_IE_HI22; | |
3584 | break; | |
3585 | case R_SPARC_TLS_GD_LO10: | |
3586 | r_type = R_SPARC_TLS_IE_LO10; | |
3587 | break; | |
3588 | } | |
3589 | ||
3590 | if (r_type == R_SPARC_TLS_LE_HIX22) | |
3591 | { | |
3592 | relocation = tpoff (info, relocation); | |
3593 | break; | |
3594 | } | |
3595 | if (r_type == R_SPARC_TLS_LE_LOX10) | |
3596 | { | |
3597 | /* Change add into xor. */ | |
3598 | relocation = tpoff (info, relocation); | |
3599 | bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd, | |
3600 | contents + rel->r_offset) | |
3601 | | 0x80182000), contents + rel->r_offset); | |
3602 | break; | |
3603 | } | |
3604 | ||
3605 | if (h != NULL) | |
3606 | { | |
3607 | off = h->got.offset; | |
3608 | h->got.offset |= 1; | |
3609 | } | |
3610 | else | |
3611 | { | |
3612 | BFD_ASSERT (local_got_offsets != NULL); | |
3613 | off = local_got_offsets[r_symndx]; | |
3614 | local_got_offsets[r_symndx] |= 1; | |
3615 | } | |
3616 | ||
3617 | r_sparc_tlsldm: | |
72fbc6e5 | 3618 | if (htab->elf.sgot == NULL) |
22b75d0a DM |
3619 | abort (); |
3620 | ||
3621 | if ((off & 1) != 0) | |
3622 | off &= ~1; | |
3623 | else | |
3624 | { | |
3625 | Elf_Internal_Rela outrel; | |
3626 | int dr_type, indx; | |
3627 | ||
72fbc6e5 | 3628 | if (htab->elf.srelgot == NULL) |
22b75d0a DM |
3629 | abort (); |
3630 | ||
72fbc6e5 DM |
3631 | SPARC_ELF_PUT_WORD (htab, output_bfd, 0, |
3632 | htab->elf.sgot->contents + off); | |
3633 | outrel.r_offset = (htab->elf.sgot->output_section->vma | |
3634 | + htab->elf.sgot->output_offset + off); | |
22b75d0a DM |
3635 | indx = h && h->dynindx != -1 ? h->dynindx : 0; |
3636 | if (r_type == R_SPARC_TLS_IE_HI22 | |
3637 | || r_type == R_SPARC_TLS_IE_LO10) | |
3638 | dr_type = SPARC_ELF_TPOFF_RELOC (htab); | |
3639 | else | |
3640 | dr_type = SPARC_ELF_DTPMOD_RELOC (htab); | |
3641 | if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0) | |
3642 | outrel.r_addend = relocation - dtpoff_base (info); | |
3643 | else | |
3644 | outrel.r_addend = 0; | |
3645 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type); | |
72fbc6e5 | 3646 | sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel); |
22b75d0a DM |
3647 | |
3648 | if (r_type == R_SPARC_TLS_GD_HI22 | |
3649 | || r_type == R_SPARC_TLS_GD_LO10) | |
3650 | { | |
3651 | if (indx == 0) | |
3652 | { | |
3653 | BFD_ASSERT (! unresolved_reloc); | |
3654 | SPARC_ELF_PUT_WORD (htab, output_bfd, | |
3655 | relocation - dtpoff_base (info), | |
72fbc6e5 | 3656 | (htab->elf.sgot->contents + off |
22b75d0a DM |
3657 | + SPARC_ELF_WORD_BYTES (htab))); |
3658 | } | |
3659 | else | |
3660 | { | |
3661 | SPARC_ELF_PUT_WORD (htab, output_bfd, 0, | |
72fbc6e5 | 3662 | (htab->elf.sgot->contents + off |
22b75d0a DM |
3663 | + SPARC_ELF_WORD_BYTES (htab))); |
3664 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, | |
3665 | SPARC_ELF_DTPOFF_RELOC (htab)); | |
3666 | outrel.r_offset += SPARC_ELF_WORD_BYTES (htab); | |
72fbc6e5 | 3667 | sparc_elf_append_rela (output_bfd, htab->elf.srelgot, |
39817122 | 3668 | &outrel); |
22b75d0a DM |
3669 | } |
3670 | } | |
3671 | else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab)) | |
3672 | { | |
3673 | SPARC_ELF_PUT_WORD (htab, output_bfd, 0, | |
72fbc6e5 | 3674 | (htab->elf.sgot->contents + off |
22b75d0a DM |
3675 | + SPARC_ELF_WORD_BYTES (htab))); |
3676 | } | |
3677 | } | |
3678 | ||
3679 | if (off >= (bfd_vma) -2) | |
3680 | abort (); | |
3681 | ||
72fbc6e5 | 3682 | relocation = htab->elf.sgot->output_offset + off - got_base; |
22b75d0a DM |
3683 | unresolved_reloc = FALSE; |
3684 | howto = _bfd_sparc_elf_howto_table + r_type; | |
3685 | break; | |
3686 | ||
3687 | case R_SPARC_TLS_LDM_HI22: | |
3688 | case R_SPARC_TLS_LDM_LO10: | |
3689 | if (! info->shared) | |
3690 | { | |
3691 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); | |
3692 | continue; | |
3693 | } | |
3694 | off = htab->tls_ldm_got.offset; | |
3695 | htab->tls_ldm_got.offset |= 1; | |
3696 | goto r_sparc_tlsldm; | |
3697 | ||
3698 | case R_SPARC_TLS_LDO_HIX22: | |
3699 | case R_SPARC_TLS_LDO_LOX10: | |
3700 | if (info->shared) | |
3701 | { | |
3702 | relocation -= dtpoff_base (info); | |
3703 | break; | |
3704 | } | |
3705 | ||
3706 | r_type = (r_type == R_SPARC_TLS_LDO_HIX22 | |
3707 | ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10); | |
3708 | /* Fall through. */ | |
3709 | ||
3710 | case R_SPARC_TLS_LE_HIX22: | |
3711 | case R_SPARC_TLS_LE_LOX10: | |
3712 | if (info->shared) | |
3713 | { | |
3714 | Elf_Internal_Rela outrel; | |
c7e2358a | 3715 | bfd_boolean skip; |
22b75d0a DM |
3716 | |
3717 | BFD_ASSERT (sreloc != NULL); | |
3718 | skip = FALSE; | |
3719 | outrel.r_offset = | |
3720 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
3721 | rel->r_offset); | |
3722 | if (outrel.r_offset == (bfd_vma) -1) | |
3723 | skip = TRUE; | |
3724 | else if (outrel.r_offset == (bfd_vma) -2) | |
c7e2358a | 3725 | skip = TRUE; |
22b75d0a DM |
3726 | outrel.r_offset += (input_section->output_section->vma |
3727 | + input_section->output_offset); | |
3728 | if (skip) | |
3729 | memset (&outrel, 0, sizeof outrel); | |
3730 | else | |
3731 | { | |
3732 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type); | |
3733 | outrel.r_addend = relocation - dtpoff_base (info) | |
3734 | + rel->r_addend; | |
3735 | } | |
3736 | ||
39817122 | 3737 | sparc_elf_append_rela (output_bfd, sreloc, &outrel); |
22b75d0a DM |
3738 | continue; |
3739 | } | |
3740 | relocation = tpoff (info, relocation); | |
3741 | break; | |
3742 | ||
3743 | case R_SPARC_TLS_LDM_CALL: | |
3744 | if (! info->shared) | |
3745 | { | |
3746 | /* mov %g0, %o0 */ | |
3747 | bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset); | |
3748 | continue; | |
3749 | } | |
3750 | /* Fall through */ | |
3751 | ||
3752 | case R_SPARC_TLS_GD_CALL: | |
3753 | tls_type = GOT_UNKNOWN; | |
3754 | if (h == NULL && local_got_offsets) | |
3755 | tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx]; | |
3756 | else if (h != NULL) | |
3757 | tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type; | |
3758 | if (! info->shared | |
3759 | || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE)) | |
3760 | { | |
abd242a9 | 3761 | Elf_Internal_Rela *rel2; |
22b75d0a DM |
3762 | bfd_vma insn; |
3763 | ||
3764 | if (!info->shared && (h == NULL || h->dynindx == -1)) | |
3765 | { | |
3766 | /* GD -> LE */ | |
3767 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); | |
3768 | continue; | |
3769 | } | |
3770 | ||
3771 | /* GD -> IE */ | |
3772 | if (rel + 1 < relend | |
3773 | && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD | |
3774 | && rel[1].r_offset == rel->r_offset + 4 | |
3775 | && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx | |
3776 | && (((insn = bfd_get_32 (input_bfd, | |
3777 | contents + rel[1].r_offset)) | |
3778 | >> 25) & 0x1f) == 8) | |
3779 | { | |
3780 | /* We have | |
3781 | call __tls_get_addr, %tgd_call(foo) | |
3782 | add %reg1, %reg2, %o0, %tgd_add(foo) | |
3783 | and change it into IE: | |
3784 | {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo) | |
3785 | add %g7, %o0, %o0, %tie_add(foo). | |
3786 | add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2, | |
3787 | ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2, | |
3788 | ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */ | |
3789 | bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000), | |
3790 | contents + rel->r_offset); | |
3791 | bfd_put_32 (output_bfd, 0x9001c008, | |
3792 | contents + rel->r_offset + 4); | |
3793 | rel++; | |
3794 | continue; | |
3795 | } | |
3796 | ||
abd242a9 DM |
3797 | /* We cannot just overwrite the delay slot instruction, |
3798 | as it might be what puts the %o0 argument to | |
3799 | __tls_get_addr into place. So we have to transpose | |
3800 | the delay slot with the add we patch in. */ | |
3801 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
3802 | bfd_put_32 (output_bfd, insn, | |
3803 | contents + rel->r_offset); | |
3804 | bfd_put_32 (output_bfd, 0x9001c008, | |
3805 | contents + rel->r_offset + 4); | |
3806 | ||
3807 | rel2 = rel; | |
3808 | while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend, | |
3809 | rel->r_offset + 4)) | |
3810 | != NULL) | |
3811 | { | |
3812 | /* If the instruction we moved has a relocation attached to | |
3813 | it, adjust the offset so that it will apply to the correct | |
3814 | instruction. */ | |
3815 | rel2->r_offset -= 4; | |
3816 | } | |
22b75d0a DM |
3817 | continue; |
3818 | } | |
3819 | ||
3820 | h = (struct elf_link_hash_entry *) | |
3821 | bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE, | |
3822 | FALSE, TRUE); | |
3823 | BFD_ASSERT (h != NULL); | |
3824 | r_type = R_SPARC_WPLT30; | |
3825 | howto = _bfd_sparc_elf_howto_table + r_type; | |
3826 | goto r_sparc_wplt30; | |
3827 | ||
3828 | case R_SPARC_TLS_GD_ADD: | |
3829 | tls_type = GOT_UNKNOWN; | |
3830 | if (h == NULL && local_got_offsets) | |
3831 | tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx]; | |
3832 | else if (h != NULL) | |
3833 | tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type; | |
3834 | if (! info->shared || tls_type == GOT_TLS_IE) | |
3835 | { | |
3836 | /* add %reg1, %reg2, %reg3, %tgd_add(foo) | |
3837 | changed into IE: | |
3838 | {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo) | |
3839 | or LE: | |
3840 | add %g7, %reg2, %reg3. */ | |
3841 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3842 | if ((h != NULL && h->dynindx != -1) || info->shared) | |
3843 | relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000); | |
3844 | else | |
3845 | relocation = (insn & ~0x7c000) | 0x1c000; | |
3846 | bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); | |
3847 | } | |
3848 | continue; | |
3849 | ||
3850 | case R_SPARC_TLS_LDM_ADD: | |
3851 | if (! info->shared) | |
3852 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); | |
3853 | continue; | |
3854 | ||
3855 | case R_SPARC_TLS_LDO_ADD: | |
3856 | if (! info->shared) | |
3857 | { | |
3858 | /* Change rs1 into %g7. */ | |
3859 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3860 | insn = (insn & ~0x7c000) | 0x1c000; | |
3861 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
3862 | } | |
3863 | continue; | |
3864 | ||
3865 | case R_SPARC_TLS_IE_LD: | |
3866 | case R_SPARC_TLS_IE_LDX: | |
3867 | if (! info->shared && (h == NULL || h->dynindx == -1)) | |
3868 | { | |
3869 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3870 | int rs2 = insn & 0x1f; | |
3871 | int rd = (insn >> 25) & 0x1f; | |
3872 | ||
3873 | if (rs2 == rd) | |
3874 | relocation = SPARC_NOP; | |
3875 | else | |
3876 | relocation = 0x80100000 | (insn & 0x3e00001f); | |
3877 | bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); | |
3878 | } | |
3879 | continue; | |
3880 | ||
3881 | case R_SPARC_TLS_IE_ADD: | |
3882 | /* Totally useless relocation. */ | |
3883 | continue; | |
3884 | ||
3885 | case R_SPARC_TLS_DTPOFF32: | |
3886 | case R_SPARC_TLS_DTPOFF64: | |
3887 | relocation -= dtpoff_base (info); | |
3888 | break; | |
3889 | ||
3890 | default: | |
3891 | break; | |
3892 | } | |
3893 | ||
3894 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections | |
3895 | because such sections are not SEC_ALLOC and thus ld.so will | |
3896 | not process them. */ | |
3897 | if (unresolved_reloc | |
3898 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
1d5316ab AM |
3899 | && h->def_dynamic) |
3900 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
3901 | rel->r_offset) != (bfd_vma) -1) | |
22b75d0a | 3902 | (*_bfd_error_handler) |
843fe662 | 3903 | (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), |
22b75d0a DM |
3904 | input_bfd, |
3905 | input_section, | |
3906 | (long) rel->r_offset, | |
843fe662 | 3907 | howto->name, |
22b75d0a DM |
3908 | h->root.root.string); |
3909 | ||
3910 | r = bfd_reloc_continue; | |
3911 | if (r_type == R_SPARC_OLO10) | |
3912 | { | |
3913 | bfd_vma x; | |
3914 | ||
3915 | if (! ABI_64_P (output_bfd)) | |
3916 | abort (); | |
3917 | ||
3918 | relocation += rel->r_addend; | |
3919 | relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info); | |
3920 | ||
3921 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3922 | x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff); | |
3923 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
3924 | ||
3925 | r = bfd_check_overflow (howto->complain_on_overflow, | |
3926 | howto->bitsize, howto->rightshift, | |
3927 | bfd_arch_bits_per_address (input_bfd), | |
3928 | relocation); | |
3929 | } | |
3930 | else if (r_type == R_SPARC_WDISP16) | |
3931 | { | |
3932 | bfd_vma x; | |
3933 | ||
3934 | relocation += rel->r_addend; | |
3935 | relocation -= (input_section->output_section->vma | |
3936 | + input_section->output_offset); | |
3937 | relocation -= rel->r_offset; | |
3938 | ||
3939 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3940 | x |= ((((relocation >> 2) & 0xc000) << 6) | |
3941 | | ((relocation >> 2) & 0x3fff)); | |
3942 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
3943 | ||
2615994e DM |
3944 | r = bfd_check_overflow (howto->complain_on_overflow, |
3945 | howto->bitsize, howto->rightshift, | |
3946 | bfd_arch_bits_per_address (input_bfd), | |
3947 | relocation); | |
3948 | } | |
3949 | else if (r_type == R_SPARC_WDISP10) | |
3950 | { | |
3951 | bfd_vma x; | |
3952 | ||
3953 | relocation += rel->r_addend; | |
3954 | relocation -= (input_section->output_section->vma | |
3955 | + input_section->output_offset); | |
3956 | relocation -= rel->r_offset; | |
3957 | ||
3958 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3959 | x |= ((((relocation >> 2) & 0x300) << 11) | |
3960 | | (((relocation >> 2) & 0xff) << 5)); | |
3961 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
3962 | ||
22b75d0a DM |
3963 | r = bfd_check_overflow (howto->complain_on_overflow, |
3964 | howto->bitsize, howto->rightshift, | |
3965 | bfd_arch_bits_per_address (input_bfd), | |
3966 | relocation); | |
3967 | } | |
3968 | else if (r_type == R_SPARC_REV32) | |
3969 | { | |
3970 | bfd_vma x; | |
3971 | ||
3972 | relocation = relocation + rel->r_addend; | |
3973 | ||
3974 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3975 | x = x + relocation; | |
3976 | bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset); | |
3977 | r = bfd_reloc_ok; | |
3978 | } | |
3979 | else if (r_type == R_SPARC_TLS_LDO_HIX22 | |
3980 | || r_type == R_SPARC_TLS_LE_HIX22) | |
3981 | { | |
3982 | bfd_vma x; | |
3983 | ||
3984 | relocation += rel->r_addend; | |
3985 | if (r_type == R_SPARC_TLS_LE_HIX22) | |
3986 | relocation ^= MINUS_ONE; | |
3987 | ||
3988 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3989 | x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); | |
3990 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
3991 | r = bfd_reloc_ok; | |
3992 | } | |
3993 | else if (r_type == R_SPARC_TLS_LDO_LOX10 | |
3994 | || r_type == R_SPARC_TLS_LE_LOX10) | |
3995 | { | |
3996 | bfd_vma x; | |
3997 | ||
3998 | relocation += rel->r_addend; | |
3999 | relocation &= 0x3ff; | |
4000 | if (r_type == R_SPARC_TLS_LE_LOX10) | |
4001 | relocation |= 0x1c00; | |
4002 | ||
4003 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
4004 | x = (x & ~(bfd_vma) 0x1fff) | relocation; | |
4005 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
4006 | ||
4007 | r = bfd_reloc_ok; | |
4008 | } | |
00c50991 DM |
4009 | else if (r_type == R_SPARC_HIX22 |
4010 | || r_type == R_SPARC_GOTDATA_HIX22) | |
22b75d0a DM |
4011 | { |
4012 | bfd_vma x; | |
4013 | ||
4014 | relocation += rel->r_addend; | |
00c50991 DM |
4015 | if (r_type == R_SPARC_HIX22 |
4016 | || (bfd_signed_vma) relocation < 0) | |
4017 | relocation = relocation ^ MINUS_ONE; | |
22b75d0a DM |
4018 | |
4019 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
4020 | x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); | |
4021 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
4022 | ||
4023 | r = bfd_check_overflow (howto->complain_on_overflow, | |
4024 | howto->bitsize, howto->rightshift, | |
4025 | bfd_arch_bits_per_address (input_bfd), | |
4026 | relocation); | |
4027 | } | |
00c50991 DM |
4028 | else if (r_type == R_SPARC_LOX10 |
4029 | || r_type == R_SPARC_GOTDATA_LOX10) | |
22b75d0a DM |
4030 | { |
4031 | bfd_vma x; | |
4032 | ||
4033 | relocation += rel->r_addend; | |
00c50991 DM |
4034 | if (r_type == R_SPARC_LOX10 |
4035 | || (bfd_signed_vma) relocation < 0) | |
4036 | relocation = (relocation & 0x3ff) | 0x1c00; | |
4037 | else | |
4038 | relocation = (relocation & 0x3ff); | |
22b75d0a DM |
4039 | |
4040 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
4041 | x = (x & ~(bfd_vma) 0x1fff) | relocation; | |
4042 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
4043 | ||
4044 | r = bfd_reloc_ok; | |
4045 | } | |
4046 | else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30) | |
4047 | && sec_do_relax (input_section) | |
4048 | && rel->r_offset + 4 < input_section->size) | |
4049 | { | |
4050 | #define G0 0 | |
4051 | #define O7 15 | |
4052 | #define XCC (2 << 20) | |
4053 | #define COND(x) (((x)&0xf)<<25) | |
4054 | #define CONDA COND(0x8) | |
4055 | #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC) | |
4056 | #define INSN_BA (F2(0,2) | CONDA) | |
4057 | #define INSN_OR F3(2, 0x2, 0) | |
4058 | #define INSN_NOP F2(0,4) | |
4059 | ||
4060 | bfd_vma x, y; | |
4061 | ||
4062 | /* If the instruction is a call with either: | |
4063 | restore | |
4064 | arithmetic instruction with rd == %o7 | |
4065 | where rs1 != %o7 and rs2 if it is register != %o7 | |
4066 | then we can optimize if the call destination is near | |
4067 | by changing the call into a branch always. */ | |
4068 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
4069 | y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
4070 | if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2)) | |
4071 | { | |
4072 | if (((y & OP3(~0)) == OP3(0x3d) /* restore */ | |
4073 | || ((y & OP3(0x28)) == 0 /* arithmetic */ | |
4074 | && (y & RD(~0)) == RD(O7))) | |
4075 | && (y & RS1(~0)) != RS1(O7) | |
4076 | && ((y & F3I(~0)) | |
4077 | || (y & RS2(~0)) != RS2(O7))) | |
4078 | { | |
4079 | bfd_vma reloc; | |
4080 | ||
4081 | reloc = relocation + rel->r_addend - rel->r_offset; | |
4082 | reloc -= (input_section->output_section->vma | |
4083 | + input_section->output_offset); | |
4084 | ||
4085 | /* Ensure the branch fits into simm22. */ | |
4086 | if ((reloc & 3) == 0 | |
4087 | && ((reloc & ~(bfd_vma)0x7fffff) == 0 | |
4088 | || ((reloc | 0x7fffff) == ~(bfd_vma)0))) | |
4089 | { | |
4090 | reloc >>= 2; | |
4091 | ||
4092 | /* Check whether it fits into simm19. */ | |
4093 | if (((reloc & 0x3c0000) == 0 | |
4094 | || (reloc & 0x3c0000) == 0x3c0000) | |
4095 | && (ABI_64_P (output_bfd) | |
4096 | || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS)) | |
4097 | x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */ | |
4098 | else | |
4099 | x = INSN_BA | (reloc & 0x3fffff); /* ba */ | |
4100 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
4101 | r = bfd_reloc_ok; | |
4102 | if (rel->r_offset >= 4 | |
4103 | && (y & (0xffffffff ^ RS1(~0))) | |
4104 | == (INSN_OR | RD(O7) | RS2(G0))) | |
4105 | { | |
4106 | bfd_vma z; | |
4107 | unsigned int reg; | |
4108 | ||
4109 | z = bfd_get_32 (input_bfd, | |
4110 | contents + rel->r_offset - 4); | |
4111 | if ((z & (0xffffffff ^ RD(~0))) | |
4112 | != (INSN_OR | RS1(O7) | RS2(G0))) | |
4113 | break; | |
4114 | ||
4115 | /* The sequence was | |
4116 | or %o7, %g0, %rN | |
4117 | call foo | |
4118 | or %rN, %g0, %o7 | |
4119 | ||
4120 | If call foo was replaced with ba, replace | |
4121 | or %rN, %g0, %o7 with nop. */ | |
4122 | ||
4123 | reg = (y & RS1(~0)) >> 14; | |
4124 | if (reg != ((z & RD(~0)) >> 25) | |
4125 | || reg == G0 || reg == O7) | |
4126 | break; | |
4127 | ||
4128 | bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP, | |
4129 | contents + rel->r_offset + 4); | |
4130 | } | |
4131 | ||
4132 | } | |
4133 | } | |
4134 | } | |
4135 | } | |
4136 | ||
4137 | if (r == bfd_reloc_continue) | |
d0c9aeb3 DM |
4138 | { |
4139 | do_relocation: | |
4140 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
4141 | contents, rel->r_offset, | |
4142 | relocation, rel->r_addend); | |
4143 | } | |
22b75d0a DM |
4144 | if (r != bfd_reloc_ok) |
4145 | { | |
4146 | switch (r) | |
4147 | { | |
4148 | default: | |
4149 | case bfd_reloc_outofrange: | |
4150 | abort (); | |
4151 | case bfd_reloc_overflow: | |
4152 | { | |
4153 | const char *name; | |
4154 | ||
68ffbac6 | 4155 | /* The Solaris native linker silently disregards overflows. |
dc669dc8 EB |
4156 | We don't, but this breaks stabs debugging info, whose |
4157 | relocations are only 32-bits wide. Ignore overflows in | |
4158 | this case and also for discarded entries. */ | |
0bef263a RO |
4159 | if ((r_type == R_SPARC_32 |
4160 | || r_type == R_SPARC_UA32 | |
4161 | || r_type == R_SPARC_DISP32) | |
dc669dc8 EB |
4162 | && (((input_section->flags & SEC_DEBUGGING) != 0 |
4163 | && strcmp (bfd_section_name (input_bfd, | |
4164 | input_section), | |
4165 | ".stab") == 0) | |
4166 | || _bfd_elf_section_offset (output_bfd, info, | |
4167 | input_section, | |
4168 | rel->r_offset) | |
4169 | == (bfd_vma)-1)) | |
4170 | break; | |
4171 | ||
22b75d0a | 4172 | if (h != NULL) |
bb29dfea EB |
4173 | { |
4174 | /* Assume this is a call protected by other code that | |
4175 | detect the symbol is undefined. If this is the case, | |
4176 | we can safely ignore the overflow. If not, the | |
4177 | program is hosed anyway, and a little warning isn't | |
4178 | going to help. */ | |
4179 | if (h->root.type == bfd_link_hash_undefweak | |
4180 | && howto->pc_relative) | |
4181 | break; | |
4182 | ||
4183 | name = NULL; | |
4184 | } | |
22b75d0a DM |
4185 | else |
4186 | { | |
4187 | name = bfd_elf_string_from_elf_section (input_bfd, | |
4188 | symtab_hdr->sh_link, | |
4189 | sym->st_name); | |
4190 | if (name == NULL) | |
4191 | return FALSE; | |
4192 | if (*name == '\0') | |
4193 | name = bfd_section_name (input_bfd, sec); | |
4194 | } | |
4195 | if (! ((*info->callbacks->reloc_overflow) | |
4196 | (info, (h ? &h->root : NULL), name, howto->name, | |
4197 | (bfd_vma) 0, input_bfd, input_section, | |
4198 | rel->r_offset))) | |
4199 | return FALSE; | |
4200 | } | |
4201 | break; | |
4202 | } | |
4203 | } | |
4204 | } | |
4205 | ||
4206 | return TRUE; | |
4207 | } | |
4208 | ||
910600e9 RS |
4209 | /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry |
4210 | and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET | |
4211 | is the offset of the associated .got.plt entry from | |
4212 | _GLOBAL_OFFSET_TABLE_. */ | |
4213 | ||
4214 | static void | |
4215 | sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info, | |
4216 | bfd_vma plt_offset, bfd_vma plt_index, | |
4217 | bfd_vma got_offset) | |
4218 | { | |
4219 | bfd_vma got_base; | |
4220 | const bfd_vma *plt_entry; | |
4221 | struct _bfd_sparc_elf_link_hash_table *htab; | |
4222 | bfd_byte *loc; | |
4223 | Elf_Internal_Rela rela; | |
4224 | ||
4225 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 NC |
4226 | BFD_ASSERT (htab != NULL); |
4227 | ||
910600e9 RS |
4228 | if (info->shared) |
4229 | { | |
4230 | plt_entry = sparc_vxworks_shared_plt_entry; | |
4231 | got_base = 0; | |
4232 | } | |
4233 | else | |
4234 | { | |
4235 | plt_entry = sparc_vxworks_exec_plt_entry; | |
4236 | got_base = (htab->elf.hgot->root.u.def.value | |
4237 | + htab->elf.hgot->root.u.def.section->output_offset | |
4238 | + htab->elf.hgot->root.u.def.section->output_section->vma); | |
4239 | } | |
4240 | ||
4241 | /* Fill in the entry in the procedure linkage table. */ | |
4242 | bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10), | |
72fbc6e5 | 4243 | htab->elf.splt->contents + plt_offset); |
910600e9 | 4244 | bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff), |
72fbc6e5 | 4245 | htab->elf.splt->contents + plt_offset + 4); |
910600e9 | 4246 | bfd_put_32 (output_bfd, plt_entry[2], |
72fbc6e5 | 4247 | htab->elf.splt->contents + plt_offset + 8); |
910600e9 | 4248 | bfd_put_32 (output_bfd, plt_entry[3], |
72fbc6e5 | 4249 | htab->elf.splt->contents + plt_offset + 12); |
910600e9 | 4250 | bfd_put_32 (output_bfd, plt_entry[4], |
72fbc6e5 | 4251 | htab->elf.splt->contents + plt_offset + 16); |
910600e9 | 4252 | bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10), |
72fbc6e5 | 4253 | htab->elf.splt->contents + plt_offset + 20); |
910600e9 RS |
4254 | /* PC-relative displacement for a branch to the start of |
4255 | the PLT section. */ | |
4256 | bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2) | |
4257 | & 0x003fffff), | |
72fbc6e5 | 4258 | htab->elf.splt->contents + plt_offset + 24); |
910600e9 | 4259 | bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff), |
72fbc6e5 | 4260 | htab->elf.splt->contents + plt_offset + 28); |
910600e9 RS |
4261 | |
4262 | /* Fill in the .got.plt entry, pointing initially at the | |
4263 | second half of the PLT entry. */ | |
72fbc6e5 | 4264 | BFD_ASSERT (htab->elf.sgotplt != NULL); |
910600e9 | 4265 | bfd_put_32 (output_bfd, |
72fbc6e5 DM |
4266 | htab->elf.splt->output_section->vma |
4267 | + htab->elf.splt->output_offset | |
910600e9 | 4268 | + plt_offset + 20, |
72fbc6e5 | 4269 | htab->elf.sgotplt->contents + got_offset); |
910600e9 RS |
4270 | |
4271 | /* Add relocations to .rela.plt.unloaded. */ | |
4272 | if (!info->shared) | |
4273 | { | |
4274 | loc = (htab->srelplt2->contents | |
4275 | + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela)); | |
4276 | ||
4277 | /* Relocate the initial sethi. */ | |
72fbc6e5 DM |
4278 | rela.r_offset = (htab->elf.splt->output_section->vma |
4279 | + htab->elf.splt->output_offset | |
910600e9 RS |
4280 | + plt_offset); |
4281 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22); | |
4282 | rela.r_addend = got_offset; | |
4283 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
4284 | loc += sizeof (Elf32_External_Rela); | |
4285 | ||
4286 | /* Likewise the following or. */ | |
4287 | rela.r_offset += 4; | |
4288 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10); | |
4289 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
4290 | loc += sizeof (Elf32_External_Rela); | |
4291 | ||
4292 | /* Relocate the .got.plt entry. */ | |
72fbc6e5 DM |
4293 | rela.r_offset = (htab->elf.sgotplt->output_section->vma |
4294 | + htab->elf.sgotplt->output_offset | |
910600e9 RS |
4295 | + got_offset); |
4296 | rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32); | |
4297 | rela.r_addend = plt_offset + 20; | |
4298 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
4299 | } | |
4300 | } | |
4301 | ||
22b75d0a DM |
4302 | /* Finish up dynamic symbol handling. We set the contents of various |
4303 | dynamic sections here. */ | |
4304 | ||
4305 | bfd_boolean | |
4306 | _bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd, | |
4307 | struct bfd_link_info *info, | |
4308 | struct elf_link_hash_entry *h, | |
4309 | Elf_Internal_Sym *sym) | |
4310 | { | |
22b75d0a | 4311 | struct _bfd_sparc_elf_link_hash_table *htab; |
39817122 | 4312 | const struct elf_backend_data *bed; |
22b75d0a DM |
4313 | |
4314 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 4315 | BFD_ASSERT (htab != NULL); |
39817122 | 4316 | bed = get_elf_backend_data (output_bfd); |
22b75d0a DM |
4317 | |
4318 | if (h->plt.offset != (bfd_vma) -1) | |
4319 | { | |
4320 | asection *splt; | |
4321 | asection *srela; | |
4322 | Elf_Internal_Rela rela; | |
4323 | bfd_byte *loc; | |
910600e9 | 4324 | bfd_vma r_offset, got_offset; |
22b75d0a DM |
4325 | int rela_index; |
4326 | ||
d0c9aeb3 DM |
4327 | /* When building a static executable, use .iplt and |
4328 | .rela.iplt sections for STT_GNU_IFUNC symbols. */ | |
4329 | if (htab->elf.splt != NULL) | |
4330 | { | |
4331 | splt = htab->elf.splt; | |
4332 | srela = htab->elf.srelplt; | |
4333 | } | |
4334 | else | |
4335 | { | |
4336 | splt = htab->elf.iplt; | |
4337 | srela = htab->elf.irelplt; | |
4338 | } | |
22b75d0a | 4339 | |
d0c9aeb3 DM |
4340 | if (splt == NULL || srela == NULL) |
4341 | abort (); | |
22b75d0a | 4342 | |
22b75d0a | 4343 | /* Fill in the entry in the .rela.plt section. */ |
910600e9 | 4344 | if (htab->is_vxworks) |
22b75d0a | 4345 | { |
910600e9 RS |
4346 | /* Work out the index of this PLT entry. */ |
4347 | rela_index = ((h->plt.offset - htab->plt_header_size) | |
4348 | / htab->plt_entry_size); | |
4349 | ||
4350 | /* Calculate the offset of the associated .got.plt entry. | |
4351 | The first three entries are reserved. */ | |
4352 | got_offset = (rela_index + 3) * 4; | |
4353 | ||
4354 | sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset, | |
4355 | rela_index, got_offset); | |
4356 | ||
4357 | ||
4358 | /* On VxWorks, the relocation points to the .got.plt entry, | |
4359 | not the .plt entry. */ | |
72fbc6e5 DM |
4360 | rela.r_offset = (htab->elf.sgotplt->output_section->vma |
4361 | + htab->elf.sgotplt->output_offset | |
910600e9 | 4362 | + got_offset); |
22b75d0a | 4363 | rela.r_addend = 0; |
d0c9aeb3 DM |
4364 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, |
4365 | R_SPARC_JMP_SLOT); | |
22b75d0a DM |
4366 | } |
4367 | else | |
4368 | { | |
d0c9aeb3 DM |
4369 | bfd_boolean ifunc = FALSE; |
4370 | ||
910600e9 RS |
4371 | /* Fill in the entry in the procedure linkage table. */ |
4372 | rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt, | |
4373 | h->plt.offset, splt->size, | |
4374 | &r_offset); | |
4375 | ||
d0c9aeb3 DM |
4376 | if (h == NULL |
4377 | || h->dynindx == -1 | |
4378 | || ((info->executable | |
4379 | || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
4380 | && h->def_regular | |
4381 | && h->type == STT_GNU_IFUNC)) | |
4382 | { | |
4383 | ifunc = TRUE; | |
4384 | BFD_ASSERT (h == NULL | |
4385 | || (h->type == STT_GNU_IFUNC | |
4386 | && h->def_regular | |
4387 | && (h->root.type == bfd_link_hash_defined | |
4388 | || h->root.type == bfd_link_hash_defweak))); | |
4389 | } | |
4390 | ||
910600e9 RS |
4391 | rela.r_offset = r_offset |
4392 | + (splt->output_section->vma + splt->output_offset); | |
d0c9aeb3 DM |
4393 | if (ABI_64_P (output_bfd) |
4394 | && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)) | |
910600e9 | 4395 | { |
d0c9aeb3 DM |
4396 | if (ifunc) |
4397 | { | |
4398 | rela.r_addend = (h->root.u.def.section->output_section->vma | |
4399 | + h->root.u.def.section->output_offset | |
4400 | + h->root.u.def.value); | |
4401 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, | |
4402 | R_SPARC_IRELATIVE); | |
4403 | } | |
4404 | else | |
4405 | { | |
4406 | rela.r_addend = (-(h->plt.offset + 4) | |
4407 | - splt->output_section->vma | |
4408 | - splt->output_offset); | |
4409 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, | |
4410 | R_SPARC_JMP_SLOT); | |
4411 | } | |
910600e9 RS |
4412 | } |
4413 | else | |
4414 | { | |
d0c9aeb3 DM |
4415 | if (ifunc) |
4416 | { | |
4417 | rela.r_addend = (h->root.u.def.section->output_section->vma | |
4418 | + h->root.u.def.section->output_offset | |
4419 | + h->root.u.def.value); | |
4420 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, | |
4421 | R_SPARC_JMP_IREL); | |
4422 | } | |
4423 | else | |
4424 | { | |
4425 | rela.r_addend = 0; | |
4426 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, | |
4427 | R_SPARC_JMP_SLOT); | |
4428 | } | |
910600e9 | 4429 | } |
22b75d0a | 4430 | } |
22b75d0a DM |
4431 | |
4432 | /* Adjust for the first 4 reserved elements in the .plt section | |
4433 | when setting the offset in the .rela.plt section. | |
4434 | Sun forgot to read their own ABI and copied elf32-sparc behaviour, | |
4435 | thus .plt[4] has corresponding .rela.plt[0] and so on. */ | |
4436 | ||
4437 | loc = srela->contents; | |
39817122 RS |
4438 | loc += rela_index * bed->s->sizeof_rela; |
4439 | bed->s->swap_reloca_out (output_bfd, &rela, loc); | |
22b75d0a DM |
4440 | |
4441 | if (!h->def_regular) | |
4442 | { | |
4443 | /* Mark the symbol as undefined, rather than as defined in | |
4444 | the .plt section. Leave the value alone. */ | |
4445 | sym->st_shndx = SHN_UNDEF; | |
4446 | /* If the symbol is weak, we do need to clear the value. | |
4447 | Otherwise, the PLT entry would provide a definition for | |
4448 | the symbol even if the symbol wasn't defined anywhere, | |
4449 | and so the symbol would never be NULL. */ | |
4450 | if (!h->ref_regular_nonweak) | |
4451 | sym->st_value = 0; | |
4452 | } | |
4453 | } | |
4454 | ||
4455 | if (h->got.offset != (bfd_vma) -1 | |
4456 | && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD | |
4457 | && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE) | |
4458 | { | |
4459 | asection *sgot; | |
4460 | asection *srela; | |
4461 | Elf_Internal_Rela rela; | |
4462 | ||
4463 | /* This symbol has an entry in the GOT. Set it up. */ | |
4464 | ||
72fbc6e5 DM |
4465 | sgot = htab->elf.sgot; |
4466 | srela = htab->elf.srelgot; | |
22b75d0a DM |
4467 | BFD_ASSERT (sgot != NULL && srela != NULL); |
4468 | ||
4469 | rela.r_offset = (sgot->output_section->vma | |
4470 | + sgot->output_offset | |
4471 | + (h->got.offset &~ (bfd_vma) 1)); | |
4472 | ||
4473 | /* If this is a -Bsymbolic link, and the symbol is defined | |
4474 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
4475 | the symbol was forced to be local because of a version file. | |
4476 | The entry in the global offset table will already have been | |
4477 | initialized in the relocate_section function. */ | |
d0c9aeb3 DM |
4478 | if (! info->shared |
4479 | && h->type == STT_GNU_IFUNC | |
4480 | && h->def_regular) | |
4481 | { | |
4482 | asection *plt; | |
4483 | ||
4484 | /* We load the GOT entry with the PLT entry. */ | |
4485 | plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt; | |
4486 | SPARC_ELF_PUT_WORD (htab, output_bfd, | |
4487 | (plt->output_section->vma | |
4488 | + plt->output_offset + h->plt.offset), | |
4489 | htab->elf.sgot->contents | |
4490 | + (h->got.offset & ~(bfd_vma) 1)); | |
4491 | return TRUE; | |
4492 | } | |
4493 | else if (info->shared | |
4494 | && SYMBOL_REFERENCES_LOCAL (info, h)) | |
22b75d0a DM |
4495 | { |
4496 | asection *sec = h->root.u.def.section; | |
d0c9aeb3 DM |
4497 | if (h->type == STT_GNU_IFUNC) |
4498 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE); | |
4499 | else | |
4500 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE); | |
22b75d0a DM |
4501 | rela.r_addend = (h->root.u.def.value |
4502 | + sec->output_section->vma | |
4503 | + sec->output_offset); | |
4504 | } | |
4505 | else | |
4506 | { | |
4507 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT); | |
4508 | rela.r_addend = 0; | |
4509 | } | |
4510 | ||
4511 | SPARC_ELF_PUT_WORD (htab, output_bfd, 0, | |
4512 | sgot->contents + (h->got.offset & ~(bfd_vma) 1)); | |
39817122 | 4513 | sparc_elf_append_rela (output_bfd, srela, &rela); |
22b75d0a DM |
4514 | } |
4515 | ||
4516 | if (h->needs_copy) | |
4517 | { | |
4518 | asection *s; | |
4519 | Elf_Internal_Rela rela; | |
4520 | ||
4521 | /* This symbols needs a copy reloc. Set it up. */ | |
4522 | BFD_ASSERT (h->dynindx != -1); | |
4523 | ||
3d4d4302 AM |
4524 | s = bfd_get_linker_section (h->root.u.def.section->owner, |
4525 | ".rela.bss"); | |
22b75d0a DM |
4526 | BFD_ASSERT (s != NULL); |
4527 | ||
4528 | rela.r_offset = (h->root.u.def.value | |
4529 | + h->root.u.def.section->output_section->vma | |
4530 | + h->root.u.def.section->output_offset); | |
4531 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY); | |
4532 | rela.r_addend = 0; | |
39817122 | 4533 | sparc_elf_append_rela (output_bfd, s, &rela); |
22b75d0a DM |
4534 | } |
4535 | ||
910600e9 RS |
4536 | /* Mark some specially defined symbols as absolute. On VxWorks, |
4537 | _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the | |
4538 | ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */ | |
d0c9aeb3 | 4539 | if (sym != NULL |
9637f6ef | 4540 | && (h == htab->elf.hdynamic |
d0c9aeb3 DM |
4541 | || (!htab->is_vxworks |
4542 | && (h == htab->elf.hgot || h == htab->elf.hplt)))) | |
22b75d0a DM |
4543 | sym->st_shndx = SHN_ABS; |
4544 | ||
4545 | return TRUE; | |
4546 | } | |
4547 | ||
4548 | /* Finish up the dynamic sections. */ | |
4549 | ||
22b75d0a | 4550 | static bfd_boolean |
39817122 RS |
4551 | sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info, |
4552 | bfd *dynobj, asection *sdyn, | |
4553 | asection *splt ATTRIBUTE_UNUSED) | |
22b75d0a | 4554 | { |
910600e9 | 4555 | struct _bfd_sparc_elf_link_hash_table *htab; |
39817122 RS |
4556 | const struct elf_backend_data *bed; |
4557 | bfd_byte *dyncon, *dynconend; | |
4558 | size_t dynsize; | |
4559 | int stt_regidx = -1; | |
4560 | bfd_boolean abi_64_p; | |
22b75d0a | 4561 | |
910600e9 | 4562 | htab = _bfd_sparc_elf_hash_table (info); |
4dfe6ac6 | 4563 | BFD_ASSERT (htab != NULL); |
39817122 RS |
4564 | bed = get_elf_backend_data (output_bfd); |
4565 | dynsize = bed->s->sizeof_dyn; | |
4566 | dynconend = sdyn->contents + sdyn->size; | |
4567 | abi_64_p = ABI_64_P (output_bfd); | |
4568 | for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize) | |
22b75d0a DM |
4569 | { |
4570 | Elf_Internal_Dyn dyn; | |
4571 | const char *name; | |
4572 | bfd_boolean size; | |
4573 | ||
39817122 | 4574 | bed->s->swap_dyn_in (dynobj, dyncon, &dyn); |
22b75d0a | 4575 | |
910600e9 | 4576 | if (htab->is_vxworks && dyn.d_tag == DT_RELASZ) |
22b75d0a | 4577 | { |
910600e9 RS |
4578 | /* On VxWorks, DT_RELASZ should not include the relocations |
4579 | in .rela.plt. */ | |
72fbc6e5 | 4580 | if (htab->elf.srelplt) |
910600e9 | 4581 | { |
72fbc6e5 | 4582 | dyn.d_un.d_val -= htab->elf.srelplt->size; |
39817122 | 4583 | bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); |
910600e9 | 4584 | } |
22b75d0a | 4585 | } |
910600e9 | 4586 | else if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT) |
22b75d0a | 4587 | { |
910600e9 RS |
4588 | /* On VxWorks, DT_PLTGOT should point to the start of the GOT, |
4589 | not to the start of the PLT. */ | |
72fbc6e5 | 4590 | if (htab->elf.sgotplt) |
910600e9 | 4591 | { |
72fbc6e5 DM |
4592 | dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma |
4593 | + htab->elf.sgotplt->output_offset); | |
39817122 | 4594 | bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); |
910600e9 RS |
4595 | } |
4596 | } | |
7a2b07ff NS |
4597 | else if (htab->is_vxworks |
4598 | && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn)) | |
4599 | bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); | |
39817122 RS |
4600 | else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER) |
4601 | { | |
4602 | if (stt_regidx == -1) | |
4603 | { | |
4604 | stt_regidx = | |
4605 | _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1); | |
4606 | if (stt_regidx == -1) | |
4607 | return FALSE; | |
4608 | } | |
4609 | dyn.d_un.d_val = stt_regidx++; | |
4610 | bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); | |
4611 | } | |
910600e9 RS |
4612 | else |
4613 | { | |
4614 | switch (dyn.d_tag) | |
4615 | { | |
4616 | case DT_PLTGOT: name = ".plt"; size = FALSE; break; | |
4617 | case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break; | |
4618 | case DT_JMPREL: name = ".rela.plt"; size = FALSE; break; | |
39817122 | 4619 | default: name = NULL; size = FALSE; break; |
910600e9 | 4620 | } |
22b75d0a | 4621 | |
910600e9 | 4622 | if (name != NULL) |
22b75d0a | 4623 | { |
910600e9 RS |
4624 | asection *s; |
4625 | ||
4626 | s = bfd_get_section_by_name (output_bfd, name); | |
4627 | if (s == NULL) | |
4628 | dyn.d_un.d_val = 0; | |
22b75d0a | 4629 | else |
910600e9 RS |
4630 | { |
4631 | if (! size) | |
4632 | dyn.d_un.d_ptr = s->vma; | |
4633 | else | |
4634 | dyn.d_un.d_val = s->size; | |
4635 | } | |
39817122 | 4636 | bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); |
22b75d0a | 4637 | } |
22b75d0a DM |
4638 | } |
4639 | } | |
4640 | return TRUE; | |
4641 | } | |
4642 | ||
910600e9 RS |
4643 | /* Install the first PLT entry in a VxWorks executable and make sure that |
4644 | .rela.plt.unloaded relocations have the correct symbol indexes. */ | |
4645 | ||
4646 | static void | |
4647 | sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info) | |
4648 | { | |
4649 | struct _bfd_sparc_elf_link_hash_table *htab; | |
4650 | Elf_Internal_Rela rela; | |
4651 | bfd_vma got_base; | |
4652 | bfd_byte *loc; | |
4653 | ||
4654 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 4655 | BFD_ASSERT (htab != NULL); |
910600e9 RS |
4656 | |
4657 | /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */ | |
4658 | got_base = (htab->elf.hgot->root.u.def.section->output_section->vma | |
4659 | + htab->elf.hgot->root.u.def.section->output_offset | |
4660 | + htab->elf.hgot->root.u.def.value); | |
4661 | ||
4662 | /* Install the initial PLT entry. */ | |
4663 | bfd_put_32 (output_bfd, | |
4664 | sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10), | |
72fbc6e5 | 4665 | htab->elf.splt->contents); |
910600e9 RS |
4666 | bfd_put_32 (output_bfd, |
4667 | sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff), | |
72fbc6e5 | 4668 | htab->elf.splt->contents + 4); |
910600e9 RS |
4669 | bfd_put_32 (output_bfd, |
4670 | sparc_vxworks_exec_plt0_entry[2], | |
72fbc6e5 | 4671 | htab->elf.splt->contents + 8); |
910600e9 RS |
4672 | bfd_put_32 (output_bfd, |
4673 | sparc_vxworks_exec_plt0_entry[3], | |
72fbc6e5 | 4674 | htab->elf.splt->contents + 12); |
910600e9 RS |
4675 | bfd_put_32 (output_bfd, |
4676 | sparc_vxworks_exec_plt0_entry[4], | |
72fbc6e5 | 4677 | htab->elf.splt->contents + 16); |
910600e9 RS |
4678 | |
4679 | loc = htab->srelplt2->contents; | |
4680 | ||
4681 | /* Add an unloaded relocation for the initial entry's "sethi". */ | |
72fbc6e5 DM |
4682 | rela.r_offset = (htab->elf.splt->output_section->vma |
4683 | + htab->elf.splt->output_offset); | |
910600e9 RS |
4684 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22); |
4685 | rela.r_addend = 8; | |
4686 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
4687 | loc += sizeof (Elf32_External_Rela); | |
4688 | ||
4689 | /* Likewise the following "or". */ | |
4690 | rela.r_offset += 4; | |
4691 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10); | |
4692 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
4693 | loc += sizeof (Elf32_External_Rela); | |
4694 | ||
4695 | /* Fix up the remaining .rela.plt.unloaded relocations. They may have | |
4696 | the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order | |
4697 | in which symbols were output. */ | |
4698 | while (loc < htab->srelplt2->contents + htab->srelplt2->size) | |
4699 | { | |
4700 | Elf_Internal_Rela rel; | |
4701 | ||
4702 | /* The entry's initial "sethi" (against _G_O_T_). */ | |
4703 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
4704 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22); | |
4705 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
4706 | loc += sizeof (Elf32_External_Rela); | |
4707 | ||
4708 | /* The following "or" (also against _G_O_T_). */ | |
4709 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
4710 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10); | |
4711 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
4712 | loc += sizeof (Elf32_External_Rela); | |
4713 | ||
4714 | /* The .got.plt entry (against _P_L_T_). */ | |
4715 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
4716 | rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32); | |
4717 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
4718 | loc += sizeof (Elf32_External_Rela); | |
4719 | } | |
4720 | } | |
4721 | ||
4722 | /* Install the first PLT entry in a VxWorks shared object. */ | |
4723 | ||
4724 | static void | |
4725 | sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info) | |
4726 | { | |
4727 | struct _bfd_sparc_elf_link_hash_table *htab; | |
4728 | unsigned int i; | |
4729 | ||
4730 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 NC |
4731 | BFD_ASSERT (htab != NULL); |
4732 | ||
910600e9 RS |
4733 | for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++) |
4734 | bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i], | |
72fbc6e5 | 4735 | htab->elf.splt->contents + i * 4); |
910600e9 RS |
4736 | } |
4737 | ||
d0c9aeb3 DM |
4738 | /* Finish up local dynamic symbol handling. We set the contents of |
4739 | various dynamic sections here. */ | |
4740 | ||
4741 | static bfd_boolean | |
4742 | finish_local_dynamic_symbol (void **slot, void *inf) | |
4743 | { | |
4744 | struct elf_link_hash_entry *h | |
4745 | = (struct elf_link_hash_entry *) *slot; | |
4746 | struct bfd_link_info *info | |
68ffbac6 | 4747 | = (struct bfd_link_info *) inf; |
d0c9aeb3 DM |
4748 | |
4749 | return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info, | |
4750 | h, NULL); | |
4751 | } | |
4752 | ||
22b75d0a DM |
4753 | bfd_boolean |
4754 | _bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) | |
4755 | { | |
4756 | bfd *dynobj; | |
4757 | asection *sdyn; | |
4758 | struct _bfd_sparc_elf_link_hash_table *htab; | |
4759 | ||
4760 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 4761 | BFD_ASSERT (htab != NULL); |
22b75d0a DM |
4762 | dynobj = htab->elf.dynobj; |
4763 | ||
3d4d4302 | 4764 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
22b75d0a DM |
4765 | |
4766 | if (elf_hash_table (info)->dynamic_sections_created) | |
4767 | { | |
4768 | asection *splt; | |
22b75d0a | 4769 | |
3d4d4302 | 4770 | splt = htab->elf.splt; |
22b75d0a DM |
4771 | BFD_ASSERT (splt != NULL && sdyn != NULL); |
4772 | ||
39817122 RS |
4773 | if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt)) |
4774 | return FALSE; | |
22b75d0a DM |
4775 | |
4776 | /* Initialize the contents of the .plt section. */ | |
4777 | if (splt->size > 0) | |
4778 | { | |
910600e9 RS |
4779 | if (htab->is_vxworks) |
4780 | { | |
4781 | if (info->shared) | |
4782 | sparc_vxworks_finish_shared_plt (output_bfd, info); | |
4783 | else | |
4784 | sparc_vxworks_finish_exec_plt (output_bfd, info); | |
4785 | } | |
22b75d0a DM |
4786 | else |
4787 | { | |
910600e9 RS |
4788 | memset (splt->contents, 0, htab->plt_header_size); |
4789 | if (!ABI_64_P (output_bfd)) | |
4790 | bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, | |
4791 | splt->contents + splt->size - 4); | |
22b75d0a DM |
4792 | } |
4793 | } | |
4794 | ||
387f8054 MR |
4795 | if (elf_section_data (splt->output_section) != NULL) |
4796 | elf_section_data (splt->output_section)->this_hdr.sh_entsize | |
4797 | = ((htab->is_vxworks || !ABI_64_P (output_bfd)) | |
4798 | ? 0 : htab->plt_entry_size); | |
22b75d0a DM |
4799 | } |
4800 | ||
4801 | /* Set the first entry in the global offset table to the address of | |
4802 | the dynamic section. */ | |
72fbc6e5 | 4803 | if (htab->elf.sgot && htab->elf.sgot->size > 0) |
22b75d0a DM |
4804 | { |
4805 | bfd_vma val = (sdyn ? | |
4806 | sdyn->output_section->vma + sdyn->output_offset : | |
4807 | 0); | |
4808 | ||
72fbc6e5 | 4809 | SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents); |
22b75d0a DM |
4810 | } |
4811 | ||
72fbc6e5 DM |
4812 | if (htab->elf.sgot) |
4813 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = | |
22b75d0a DM |
4814 | SPARC_ELF_WORD_BYTES (htab); |
4815 | ||
d0c9aeb3 DM |
4816 | /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */ |
4817 | htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info); | |
4818 | ||
22b75d0a DM |
4819 | return TRUE; |
4820 | } | |
4821 | ||
4822 | \f | |
4823 | /* Set the right machine number for a SPARC ELF file. */ | |
4824 | ||
4825 | bfd_boolean | |
4826 | _bfd_sparc_elf_object_p (bfd *abfd) | |
4827 | { | |
4828 | if (ABI_64_P (abfd)) | |
4829 | { | |
4830 | unsigned long mach = bfd_mach_sparc_v9; | |
4831 | ||
4832 | if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3) | |
4833 | mach = bfd_mach_sparc_v9b; | |
4834 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) | |
4835 | mach = bfd_mach_sparc_v9a; | |
4836 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach); | |
4837 | } | |
4838 | else | |
4839 | { | |
4840 | if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS) | |
4841 | { | |
4842 | if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3) | |
4843 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
4844 | bfd_mach_sparc_v8plusb); | |
4845 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) | |
4846 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
4847 | bfd_mach_sparc_v8plusa); | |
4848 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS) | |
4849 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
4850 | bfd_mach_sparc_v8plus); | |
4851 | else | |
4852 | return FALSE; | |
4853 | } | |
4854 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA) | |
4855 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
4856 | bfd_mach_sparc_sparclite_le); | |
4857 | else | |
4858 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc); | |
4859 | } | |
4860 | } | |
4861 | ||
4862 | /* Return address for Ith PLT stub in section PLT, for relocation REL | |
4863 | or (bfd_vma) -1 if it should not be included. */ | |
4864 | ||
4865 | bfd_vma | |
4866 | _bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel) | |
4867 | { | |
4868 | if (ABI_64_P (plt->owner)) | |
4869 | { | |
4870 | bfd_vma j; | |
4871 | ||
4872 | i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE; | |
4873 | if (i < PLT64_LARGE_THRESHOLD) | |
4874 | return plt->vma + i * PLT64_ENTRY_SIZE; | |
4875 | ||
4876 | j = (i - PLT64_LARGE_THRESHOLD) % 160; | |
4877 | i -= j; | |
4878 | return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6; | |
4879 | } | |
4880 | else | |
4881 | return rel->address; | |
4882 | } | |
9e8c70f9 DM |
4883 | |
4884 | /* Merge backend specific data from an object file to the output | |
4885 | object file when linking. */ | |
4886 | ||
4887 | bfd_boolean | |
4888 | _bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
4889 | { | |
4890 | obj_attribute *in_attr, *in_attrs; | |
4891 | obj_attribute *out_attr, *out_attrs; | |
4892 | ||
4893 | if (!elf_known_obj_attributes_proc (obfd)[0].i) | |
4894 | { | |
4895 | /* This is the first object. Copy the attributes. */ | |
4896 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
4897 | ||
4898 | /* Use the Tag_null value to indicate the attributes have been | |
4899 | initialized. */ | |
4900 | elf_known_obj_attributes_proc (obfd)[0].i = 1; | |
4901 | ||
4902 | return TRUE; | |
4903 | } | |
4904 | ||
4905 | in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU]; | |
4906 | out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU]; | |
4907 | ||
4908 | in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS]; | |
4909 | out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS]; | |
4910 | ||
4911 | out_attr->i |= in_attr->i; | |
209be8d2 | 4912 | out_attr->type = 1; |
9e8c70f9 DM |
4913 | |
4914 | /* Merge Tag_compatibility attributes and any common GNU ones. */ | |
4915 | _bfd_elf_merge_object_attributes (ibfd, obfd); | |
4916 | ||
4917 | return TRUE; | |
4918 | } |