/src/binutils-gdb/bfd/elfxx-sparc.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* SPARC-specific support for ELF |
2 | | Copyright (C) 2005-2025 Free Software Foundation, Inc. |
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 |
8 | | the Free Software Foundation; either version 3 of the License, or |
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 |
18 | | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
19 | | MA 02110-1301, USA. */ |
20 | | |
21 | | |
22 | | /* This file handles functionality common to the different SPARC ABI's. */ |
23 | | |
24 | | #include "sysdep.h" |
25 | | #include "bfd.h" |
26 | | #include "bfdlink.h" |
27 | | #include "libbfd.h" |
28 | | #include "libiberty.h" |
29 | | #include "elf-bfd.h" |
30 | | #include "elf/sparc.h" |
31 | | #include "opcode/sparc.h" |
32 | | #include "elfxx-sparc.h" |
33 | | #include "elf-vxworks.h" |
34 | | #include "objalloc.h" |
35 | | #include "hashtab.h" |
36 | | |
37 | | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */ |
38 | 0 | #define MINUS_ONE (~ (bfd_vma) 0) |
39 | | |
40 | | #define ABI_64_P(abfd) \ |
41 | 34.9k | (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, |
55 | | void * data, asection *input_section, bfd *output_bfd, |
56 | | bfd_vma *prelocation, bfd_vma *pinsn) |
57 | 0 | { |
58 | 0 | bfd_vma relocation; |
59 | 0 | reloc_howto_type *howto = reloc_entry->howto; |
60 | |
|
61 | 0 | if (output_bfd != (bfd *) NULL |
62 | 0 | && (symbol->flags & BSF_SECTION_SYM) == 0 |
63 | 0 | && (! howto->partial_inplace |
64 | 0 | || reloc_entry->addend == 0)) |
65 | 0 | { |
66 | 0 | reloc_entry->address += input_section->output_offset; |
67 | 0 | return bfd_reloc_ok; |
68 | 0 | } |
69 | | |
70 | | /* This works because partial_inplace is FALSE. */ |
71 | 0 | if (output_bfd != NULL) |
72 | 0 | return bfd_reloc_continue; |
73 | | |
74 | 0 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) |
75 | 0 | return bfd_reloc_outofrange; |
76 | | |
77 | 0 | relocation = (symbol->value |
78 | 0 | + symbol->section->output_section->vma |
79 | 0 | + symbol->section->output_offset); |
80 | 0 | relocation += reloc_entry->addend; |
81 | 0 | if (howto->pc_relative) |
82 | 0 | { |
83 | 0 | relocation -= (input_section->output_section->vma |
84 | 0 | + input_section->output_offset); |
85 | 0 | relocation -= reloc_entry->address; |
86 | 0 | } |
87 | |
|
88 | 0 | *prelocation = relocation; |
89 | 0 | *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); |
90 | 0 | return bfd_reloc_other; |
91 | 0 | } |
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, |
99 | | void * data ATTRIBUTE_UNUSED, |
100 | | asection *input_section ATTRIBUTE_UNUSED, |
101 | | bfd *output_bfd ATTRIBUTE_UNUSED, |
102 | | char **error_message ATTRIBUTE_UNUSED) |
103 | 0 | { |
104 | 0 | return bfd_reloc_notsupported; |
105 | 0 | } |
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, |
111 | | void * data, asection *input_section, bfd *output_bfd, |
112 | | char **error_message ATTRIBUTE_UNUSED) |
113 | 0 | { |
114 | 0 | bfd_vma relocation; |
115 | 0 | bfd_vma insn; |
116 | 0 | bfd_reloc_status_type status; |
117 | |
|
118 | 0 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, |
119 | 0 | input_section, output_bfd, &relocation, &insn); |
120 | 0 | if (status != bfd_reloc_other) |
121 | 0 | return status; |
122 | | |
123 | 0 | insn &= ~ (bfd_vma) 0x303fff; |
124 | 0 | insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff); |
125 | 0 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
126 | |
|
127 | 0 | if ((bfd_signed_vma) relocation < - 0x40000 |
128 | 0 | || (bfd_signed_vma) relocation > 0x3ffff) |
129 | 0 | return bfd_reloc_overflow; |
130 | 0 | else |
131 | 0 | return bfd_reloc_ok; |
132 | 0 | } |
133 | | |
134 | | /* Handle the WDISP10 reloc. */ |
135 | | |
136 | | static bfd_reloc_status_type |
137 | | sparc_elf_wdisp10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
138 | | void * data, asection *input_section, bfd *output_bfd, |
139 | | char **error_message ATTRIBUTE_UNUSED) |
140 | 0 | { |
141 | 0 | bfd_vma relocation; |
142 | 0 | bfd_vma insn; |
143 | 0 | bfd_reloc_status_type status; |
144 | |
|
145 | 0 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, |
146 | 0 | input_section, output_bfd, &relocation, &insn); |
147 | 0 | if (status != bfd_reloc_other) |
148 | 0 | return status; |
149 | | |
150 | 0 | insn &= ~ (bfd_vma) 0x181fe0; |
151 | 0 | insn |= (((relocation >> 2) & 0x300) << 11) |
152 | 0 | | (((relocation >> 2) & 0xff) << 5); |
153 | 0 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
154 | |
|
155 | 0 | if ((bfd_signed_vma) relocation < - 0x1000 |
156 | 0 | || (bfd_signed_vma) relocation > 0xfff) |
157 | 0 | return bfd_reloc_overflow; |
158 | 0 | else |
159 | 0 | return bfd_reloc_ok; |
160 | 0 | } |
161 | | |
162 | | /* Handle the HIX22 reloc. */ |
163 | | |
164 | | static bfd_reloc_status_type |
165 | | sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
166 | | void * data, asection *input_section, bfd *output_bfd, |
167 | | char **error_message ATTRIBUTE_UNUSED) |
168 | 0 | { |
169 | 0 | bfd_vma relocation; |
170 | 0 | bfd_vma insn; |
171 | 0 | bfd_reloc_status_type status; |
172 | |
|
173 | 0 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, |
174 | 0 | input_section, output_bfd, &relocation, &insn); |
175 | 0 | if (status != bfd_reloc_other) |
176 | 0 | return status; |
177 | | |
178 | 0 | relocation ^= MINUS_ONE; |
179 | 0 | insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); |
180 | 0 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
181 | |
|
182 | 0 | if ((relocation & ~ (bfd_vma) 0xffffffff) != 0) |
183 | 0 | return bfd_reloc_overflow; |
184 | 0 | else |
185 | 0 | return bfd_reloc_ok; |
186 | 0 | } |
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, |
192 | | void * data, asection *input_section, bfd *output_bfd, |
193 | | char **error_message ATTRIBUTE_UNUSED) |
194 | 0 | { |
195 | 0 | bfd_vma relocation; |
196 | 0 | bfd_vma insn; |
197 | 0 | bfd_reloc_status_type status; |
198 | |
|
199 | 0 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, |
200 | 0 | input_section, output_bfd, &relocation, &insn); |
201 | 0 | if (status != bfd_reloc_other) |
202 | 0 | return status; |
203 | | |
204 | 0 | insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff); |
205 | 0 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); |
206 | |
|
207 | 0 | return bfd_reloc_ok; |
208 | 0 | } |
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, 0,1, 8,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", false,0,0x000000ff,true), |
214 | | HOWTO(R_SPARC_16, 0,2,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", false,0,0x0000ffff,true), |
215 | | HOWTO(R_SPARC_32, 0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", false,0,0xffffffff,true), |
216 | | HOWTO(R_SPARC_DISP8, 0,1, 8,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", false,0,0x000000ff,true), |
217 | | HOWTO(R_SPARC_DISP16, 0,2,16,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", false,0,0x0000ffff,true), |
218 | | HOWTO(R_SPARC_DISP32, 0,4,32,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", false,0,0xffffffff,true), |
219 | | HOWTO(R_SPARC_WDISP30, 2,4,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", false,0,0x3fffffff,true), |
220 | | HOWTO(R_SPARC_WDISP22, 2,4,22,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", false,0,0x003fffff,true), |
221 | | HOWTO(R_SPARC_HI22, 10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", false,0,0x003fffff,true), |
222 | | HOWTO(R_SPARC_22, 0,4,22,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", false,0,0x003fffff,true), |
223 | | HOWTO(R_SPARC_13, 0,4,13,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", false,0,0x00001fff,true), |
224 | | HOWTO(R_SPARC_LO10, 0,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", false,0,0x000003ff,true), |
225 | | HOWTO(R_SPARC_GOT10, 0,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", false,0,0x000003ff,true), |
226 | | HOWTO(R_SPARC_GOT13, 0,4,13,false,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", false,0,0x00001fff,true), |
227 | | HOWTO(R_SPARC_GOT22, 10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", false,0,0x003fffff,true), |
228 | | HOWTO(R_SPARC_PC10, 0,4,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", false,0,0x000003ff,true), |
229 | | HOWTO(R_SPARC_PC22, 10,4,22,true, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", false,0,0x003fffff,true), |
230 | | HOWTO(R_SPARC_WPLT30, 2,4,30,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", false,0,0x3fffffff,true), |
231 | | HOWTO(R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", false,0,0x00000000,true), |
232 | | HOWTO(R_SPARC_GLOB_DAT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",false,0,0x00000000,true), |
233 | | HOWTO(R_SPARC_JMP_SLOT, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",false,0,0x00000000,true), |
234 | | HOWTO(R_SPARC_RELATIVE, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",false,0,0x00000000,true), |
235 | | HOWTO(R_SPARC_UA32, 0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", false,0,0xffffffff,true), |
236 | | HOWTO(R_SPARC_PLT32, 0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", false,0,0xffffffff,true), |
237 | | HOWTO(R_SPARC_HIPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", false,0,0x00000000,true), |
238 | | HOWTO(R_SPARC_LOPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", false,0,0x00000000,true), |
239 | | HOWTO(R_SPARC_PCPLT32, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", false,0,0x00000000,true), |
240 | | HOWTO(R_SPARC_PCPLT22, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", false,0,0x00000000,true), |
241 | | HOWTO(R_SPARC_PCPLT10, 0,0,00,false,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", false,0,0x00000000,true), |
242 | | HOWTO(R_SPARC_10, 0,4,10,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", false,0,0x000003ff,true), |
243 | | HOWTO(R_SPARC_11, 0,4,11,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", false,0,0x000007ff,true), |
244 | | HOWTO(R_SPARC_64, 0,8,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", false,0,MINUS_ONE, true), |
245 | | HOWTO(R_SPARC_OLO10, 0,4,13,false,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", false,0,0x00001fff,true), |
246 | | HOWTO(R_SPARC_HH22, 42,4,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", false,0,0x003fffff,true), |
247 | | HOWTO(R_SPARC_HM10, 32,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", false,0,0x000003ff,true), |
248 | | HOWTO(R_SPARC_LM22, 10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", false,0,0x003fffff,true), |
249 | | HOWTO(R_SPARC_PC_HH22, 42,4,22,true, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", false,0,0x003fffff,true), |
250 | | HOWTO(R_SPARC_PC_HM10, 32,4,10,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", false,0,0x000003ff,true), |
251 | | HOWTO(R_SPARC_PC_LM22, 10,4,22,true, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", false,0,0x003fffff,true), |
252 | | HOWTO(R_SPARC_WDISP16, 2,4,16,true, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", false,0,0x00000000,true), |
253 | | HOWTO(R_SPARC_WDISP19, 2,4,19,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", false,0,0x0007ffff,true), |
254 | | HOWTO(R_SPARC_UNUSED_42, 0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",false,0,0x00000000,true), |
255 | | HOWTO(R_SPARC_7, 0,4, 7,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", false,0,0x0000007f,true), |
256 | | HOWTO(R_SPARC_5, 0,4, 5,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", false,0,0x0000001f,true), |
257 | | HOWTO(R_SPARC_6, 0,4, 6,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", false,0,0x0000003f,true), |
258 | | HOWTO(R_SPARC_DISP64, 0,8,64,true, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", false,0,MINUS_ONE, true), |
259 | | HOWTO(R_SPARC_PLT64, 0,8,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", false,0,MINUS_ONE, true), |
260 | | HOWTO(R_SPARC_HIX22, 0,8, 0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", false,0,MINUS_ONE, false), |
261 | | HOWTO(R_SPARC_LOX10, 0,8, 0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", false,0,MINUS_ONE, false), |
262 | | HOWTO(R_SPARC_H44, 22,4,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", false,0,0x003fffff,false), |
263 | | HOWTO(R_SPARC_M44, 12,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", false,0,0x000003ff,false), |
264 | | HOWTO(R_SPARC_L44, 0,4,13,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", false,0,0x00000fff,false), |
265 | | HOWTO(R_SPARC_REGISTER, 0,8, 0,false,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",false,0,MINUS_ONE, false), |
266 | | HOWTO(R_SPARC_UA64, 0,8,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", false,0,MINUS_ONE, true), |
267 | | HOWTO(R_SPARC_UA16, 0,2,16,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", false,0,0x0000ffff,true), |
268 | | HOWTO(R_SPARC_TLS_GD_HI22,10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",false,0,0x003fffff,true), |
269 | | HOWTO(R_SPARC_TLS_GD_LO10,0,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",false,0,0x000003ff,true), |
270 | | HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",false,0,0x00000000,true), |
271 | | HOWTO(R_SPARC_TLS_GD_CALL,2,4,30,true,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",false,0,0x3fffffff,true), |
272 | | HOWTO(R_SPARC_TLS_LDM_HI22,10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",false,0,0x003fffff,true), |
273 | | HOWTO(R_SPARC_TLS_LDM_LO10,0,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",false,0,0x000003ff,true), |
274 | | HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",false,0,0x00000000,true), |
275 | | HOWTO(R_SPARC_TLS_LDM_CALL,2,4,30,true,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",false,0,0x3fffffff,true), |
276 | | HOWTO(R_SPARC_TLS_LDO_HIX22,0,4,0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",false,0,0x003fffff, false), |
277 | | HOWTO(R_SPARC_TLS_LDO_LOX10,0,4,0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",false,0,0x000003ff, false), |
278 | | HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",false,0,0x00000000,true), |
279 | | HOWTO(R_SPARC_TLS_IE_HI22,10,4,22,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",false,0,0x003fffff,true), |
280 | | HOWTO(R_SPARC_TLS_IE_LO10,0,4,10,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",false,0,0x000003ff,true), |
281 | | HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",false,0,0x00000000,true), |
282 | | HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",false,0,0x00000000,true), |
283 | | HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",false,0,0x00000000,true), |
284 | | HOWTO(R_SPARC_TLS_LE_HIX22,0,4,0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",false,0,0x003fffff, false), |
285 | | HOWTO(R_SPARC_TLS_LE_LOX10,0,4,0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",false,0,0x000003ff, false), |
286 | | HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",false,0,0x00000000,true), |
287 | | HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",false,0,0x00000000,true), |
288 | | HOWTO(R_SPARC_TLS_DTPOFF32,0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",false,0,0xffffffff,true), |
289 | | HOWTO(R_SPARC_TLS_DTPOFF64,0,8,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",false,0,MINUS_ONE,true), |
290 | | HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",false,0,0x00000000,true), |
291 | | HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",false,0,0x00000000,true), |
292 | | HOWTO(R_SPARC_GOTDATA_HIX22,0,4,0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",false,0,0x003fffff, false), |
293 | | HOWTO(R_SPARC_GOTDATA_LOX10,0,4,0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",false,0,0x000003ff, false), |
294 | | HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,4,0,false,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",false,0,0x003fffff, false), |
295 | | HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,4,0,false,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",false,0,0x000003ff, false), |
296 | | HOWTO(R_SPARC_GOTDATA_OP,0,0, 0,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOTDATA_OP",false,0,0x00000000,true), |
297 | | HOWTO(R_SPARC_H34,12,4,22,false,0,complain_overflow_unsigned,bfd_elf_generic_reloc,"R_SPARC_H34",false,0,0x003fffff,false), |
298 | | HOWTO(R_SPARC_SIZE32,0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE32",false,0,0xffffffff,true), |
299 | | HOWTO(R_SPARC_SIZE64,0,8,64,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_SIZE64",false,0,MINUS_ONE, true), |
300 | | HOWTO(R_SPARC_WDISP10,2,4,10,true, 0,complain_overflow_signed,sparc_elf_wdisp10_reloc,"R_SPARC_WDISP10",false,0,0x00000000,true), |
301 | | }; |
302 | | static reloc_howto_type sparc_jmp_irel_howto = |
303 | | HOWTO(R_SPARC_JMP_IREL, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_IREL",false,0,0x00000000,true); |
304 | | static reloc_howto_type sparc_irelative_howto = |
305 | | HOWTO(R_SPARC_IRELATIVE, 0,0,00,false,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_IRELATIVE",false,0,0x00000000,true); |
306 | | static reloc_howto_type sparc_vtinherit_howto = |
307 | | HOWTO (R_SPARC_GNU_VTINHERIT, 0,4,0,false,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", false,0, 0, false); |
308 | | static reloc_howto_type sparc_vtentry_howto = |
309 | | HOWTO (R_SPARC_GNU_VTENTRY, 0,4,0,false,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", false,0,0, false); |
310 | | static reloc_howto_type sparc_rev32_howto = |
311 | | HOWTO(R_SPARC_REV32, 0,4,32,false,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", false,0,0xffffffff,true); |
312 | | |
313 | | reloc_howto_type * |
314 | | _bfd_sparc_elf_reloc_type_lookup (bfd *abfd, |
315 | | bfd_reloc_code_real_type code) |
316 | 0 | { |
317 | | /* We explicitly handle each relocation type in the switch |
318 | | instead of using a lookup table for efficiency. */ |
319 | 0 | switch (code) |
320 | 0 | { |
321 | 0 | case BFD_RELOC_NONE: |
322 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_NONE]; |
323 | | |
324 | 0 | case BFD_RELOC_8: |
325 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_8]; |
326 | | |
327 | 0 | case BFD_RELOC_16: |
328 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_16]; |
329 | | |
330 | 0 | case BFD_RELOC_32: |
331 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_32]; |
332 | | |
333 | 0 | case BFD_RELOC_8_PCREL: |
334 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_DISP8]; |
335 | | |
336 | 0 | case BFD_RELOC_16_PCREL: |
337 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_DISP16]; |
338 | | |
339 | 0 | case BFD_RELOC_32_PCREL: |
340 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_DISP32]; |
341 | | |
342 | 0 | case BFD_RELOC_32_PCREL_S2: |
343 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP30]; |
344 | | |
345 | 0 | case BFD_RELOC_SPARC_WDISP22: |
346 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP22]; |
347 | | |
348 | 0 | case BFD_RELOC_HI22: |
349 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_HI22]; |
350 | | |
351 | 0 | case BFD_RELOC_SPARC22: |
352 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_22]; |
353 | | |
354 | 0 | case BFD_RELOC_SPARC13: |
355 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_13]; |
356 | | |
357 | 0 | case BFD_RELOC_LO10: |
358 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_LO10]; |
359 | | |
360 | 0 | case BFD_RELOC_SPARC_GOT10: |
361 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOT10]; |
362 | | |
363 | 0 | case BFD_RELOC_SPARC_GOT13: |
364 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOT13]; |
365 | | |
366 | 0 | case BFD_RELOC_SPARC_GOT22: |
367 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOT22]; |
368 | | |
369 | 0 | case BFD_RELOC_SPARC_PC10: |
370 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_PC10]; |
371 | | |
372 | 0 | case BFD_RELOC_SPARC_PC22: |
373 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_PC22]; |
374 | | |
375 | 0 | case BFD_RELOC_SPARC_WPLT30: |
376 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_WPLT30]; |
377 | | |
378 | 0 | case BFD_RELOC_SPARC_COPY: |
379 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_COPY]; |
380 | | |
381 | 0 | case BFD_RELOC_SPARC_GLOB_DAT: |
382 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_GLOB_DAT]; |
383 | | |
384 | 0 | case BFD_RELOC_SPARC_JMP_SLOT: |
385 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_JMP_SLOT]; |
386 | | |
387 | 0 | case BFD_RELOC_SPARC_RELATIVE: |
388 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_RELATIVE]; |
389 | | |
390 | 0 | case BFD_RELOC_SPARC_UA32: |
391 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_UA32]; |
392 | | |
393 | 0 | case BFD_RELOC_SPARC_PLT32: |
394 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_PLT32]; |
395 | | |
396 | 0 | case BFD_RELOC_SPARC_10: |
397 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_10]; |
398 | | |
399 | 0 | case BFD_RELOC_SPARC_11: |
400 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_11]; |
401 | | |
402 | 0 | case BFD_RELOC_SPARC_64: |
403 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_64]; |
404 | | |
405 | 0 | case BFD_RELOC_SPARC_OLO10: |
406 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_OLO10]; |
407 | | |
408 | 0 | case BFD_RELOC_SPARC_HH22: |
409 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_HH22]; |
410 | | |
411 | 0 | case BFD_RELOC_SPARC_HM10: |
412 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_HM10]; |
413 | | |
414 | 0 | case BFD_RELOC_SPARC_LM22: |
415 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_LM22]; |
416 | | |
417 | 0 | case BFD_RELOC_SPARC_PC_HH22: |
418 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HH22]; |
419 | | |
420 | 0 | case BFD_RELOC_SPARC_PC_HM10: |
421 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HM10]; |
422 | | |
423 | 0 | case BFD_RELOC_SPARC_PC_LM22: |
424 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_PC_LM22]; |
425 | | |
426 | 0 | case BFD_RELOC_SPARC_WDISP16: |
427 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP16]; |
428 | | |
429 | 0 | case BFD_RELOC_SPARC_WDISP19: |
430 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP19]; |
431 | | |
432 | 0 | case BFD_RELOC_SPARC_7: |
433 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_7]; |
434 | | |
435 | 0 | case BFD_RELOC_SPARC_5: |
436 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_5]; |
437 | | |
438 | 0 | case BFD_RELOC_SPARC_6: |
439 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_6]; |
440 | | |
441 | 0 | case BFD_RELOC_SPARC_DISP64: |
442 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_DISP64]; |
443 | | |
444 | 0 | case BFD_RELOC_SPARC_PLT64: |
445 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_PLT64]; |
446 | | |
447 | 0 | case BFD_RELOC_SPARC_HIX22: |
448 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_HIX22]; |
449 | | |
450 | 0 | case BFD_RELOC_SPARC_LOX10: |
451 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_LOX10]; |
452 | | |
453 | 0 | case BFD_RELOC_SPARC_H44: |
454 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_H44]; |
455 | | |
456 | 0 | case BFD_RELOC_SPARC_M44: |
457 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_M44]; |
458 | | |
459 | 0 | case BFD_RELOC_SPARC_L44: |
460 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_L44]; |
461 | | |
462 | 0 | case BFD_RELOC_SPARC_REGISTER: |
463 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_REGISTER]; |
464 | | |
465 | 0 | case BFD_RELOC_SPARC_UA64: |
466 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_UA64]; |
467 | | |
468 | 0 | case BFD_RELOC_SPARC_UA16: |
469 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_UA16]; |
470 | | |
471 | 0 | case BFD_RELOC_SPARC_TLS_GD_HI22: |
472 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_HI22]; |
473 | | |
474 | 0 | case BFD_RELOC_SPARC_TLS_GD_LO10: |
475 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_LO10]; |
476 | | |
477 | 0 | case BFD_RELOC_SPARC_TLS_GD_ADD: |
478 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_ADD]; |
479 | | |
480 | 0 | case BFD_RELOC_SPARC_TLS_GD_CALL: |
481 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_CALL]; |
482 | | |
483 | 0 | case BFD_RELOC_SPARC_TLS_LDM_HI22: |
484 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_HI22]; |
485 | | |
486 | 0 | case BFD_RELOC_SPARC_TLS_LDM_LO10: |
487 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_LO10]; |
488 | | |
489 | 0 | case BFD_RELOC_SPARC_TLS_LDM_ADD: |
490 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_ADD]; |
491 | | |
492 | 0 | case BFD_RELOC_SPARC_TLS_LDM_CALL: |
493 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_CALL]; |
494 | | |
495 | 0 | case BFD_RELOC_SPARC_TLS_LDO_HIX22: |
496 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_HIX22]; |
497 | | |
498 | 0 | case BFD_RELOC_SPARC_TLS_LDO_LOX10: |
499 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_LOX10]; |
500 | | |
501 | 0 | case BFD_RELOC_SPARC_TLS_LDO_ADD: |
502 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_ADD]; |
503 | | |
504 | 0 | case BFD_RELOC_SPARC_TLS_IE_HI22: |
505 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_HI22]; |
506 | | |
507 | 0 | case BFD_RELOC_SPARC_TLS_IE_LO10: |
508 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LO10]; |
509 | | |
510 | 0 | case BFD_RELOC_SPARC_TLS_IE_LD: |
511 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LD]; |
512 | | |
513 | 0 | case BFD_RELOC_SPARC_TLS_IE_LDX: |
514 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LDX]; |
515 | | |
516 | 0 | case BFD_RELOC_SPARC_TLS_IE_ADD: |
517 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_ADD]; |
518 | | |
519 | 0 | case BFD_RELOC_SPARC_TLS_LE_HIX22: |
520 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_HIX22]; |
521 | | |
522 | 0 | case BFD_RELOC_SPARC_TLS_LE_LOX10: |
523 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_LOX10]; |
524 | | |
525 | 0 | case BFD_RELOC_SPARC_TLS_DTPMOD32: |
526 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD32]; |
527 | | |
528 | 0 | case BFD_RELOC_SPARC_TLS_DTPMOD64: |
529 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD64]; |
530 | | |
531 | 0 | case BFD_RELOC_SPARC_TLS_DTPOFF32: |
532 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF32]; |
533 | | |
534 | 0 | case BFD_RELOC_SPARC_TLS_DTPOFF64: |
535 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF64]; |
536 | | |
537 | 0 | case BFD_RELOC_SPARC_TLS_TPOFF32: |
538 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF32]; |
539 | | |
540 | 0 | case BFD_RELOC_SPARC_TLS_TPOFF64: |
541 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF64]; |
542 | | |
543 | 0 | case BFD_RELOC_SPARC_GOTDATA_HIX22: |
544 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_HIX22]; |
545 | | |
546 | 0 | case BFD_RELOC_SPARC_GOTDATA_LOX10: |
547 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_LOX10]; |
548 | | |
549 | 0 | case BFD_RELOC_SPARC_GOTDATA_OP_HIX22: |
550 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_HIX22]; |
551 | | |
552 | 0 | case BFD_RELOC_SPARC_GOTDATA_OP_LOX10: |
553 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_LOX10]; |
554 | | |
555 | 0 | case BFD_RELOC_SPARC_GOTDATA_OP: |
556 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP]; |
557 | | |
558 | 0 | case BFD_RELOC_SPARC_H34: |
559 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_H34]; |
560 | | |
561 | 0 | case BFD_RELOC_SPARC_SIZE32: |
562 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE32]; |
563 | | |
564 | 0 | case BFD_RELOC_SPARC_SIZE64: |
565 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_SIZE64]; |
566 | | |
567 | 0 | case BFD_RELOC_SPARC_WDISP10: |
568 | 0 | return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP10]; |
569 | | |
570 | 0 | case BFD_RELOC_SPARC_JMP_IREL: |
571 | 0 | return &sparc_jmp_irel_howto; |
572 | | |
573 | 0 | case BFD_RELOC_SPARC_IRELATIVE: |
574 | 0 | return &sparc_irelative_howto; |
575 | | |
576 | 0 | case BFD_RELOC_VTABLE_INHERIT: |
577 | 0 | return &sparc_vtinherit_howto; |
578 | | |
579 | 0 | case BFD_RELOC_VTABLE_ENTRY: |
580 | 0 | return &sparc_vtentry_howto; |
581 | | |
582 | 0 | case BFD_RELOC_SPARC_REV32: |
583 | 0 | return &sparc_rev32_howto; |
584 | | |
585 | 0 | default: |
586 | 0 | break; |
587 | 0 | } |
588 | | /* xgettext:c-format */ |
589 | 0 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, (int) code); |
590 | 0 | bfd_set_error (bfd_error_bad_value); |
591 | 0 | return NULL; |
592 | 0 | } |
593 | | |
594 | | reloc_howto_type * |
595 | | _bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
596 | | const char *r_name) |
597 | 0 | { |
598 | 0 | unsigned int i; |
599 | |
|
600 | 0 | for (i = 0; i < ARRAY_SIZE (_bfd_sparc_elf_howto_table); i++) |
601 | 0 | if (_bfd_sparc_elf_howto_table[i].name != NULL |
602 | 0 | && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0) |
603 | 0 | return &_bfd_sparc_elf_howto_table[i]; |
604 | | |
605 | 0 | if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0) |
606 | 0 | return &sparc_vtinherit_howto; |
607 | 0 | if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0) |
608 | 0 | return &sparc_vtentry_howto; |
609 | 0 | if (strcasecmp (sparc_rev32_howto.name, r_name) == 0) |
610 | 0 | return &sparc_rev32_howto; |
611 | | |
612 | 0 | return NULL; |
613 | 0 | } |
614 | | |
615 | | reloc_howto_type * |
616 | | _bfd_sparc_elf_info_to_howto_ptr (bfd *abfd ATTRIBUTE_UNUSED, |
617 | | unsigned int r_type) |
618 | 903 | { |
619 | 903 | switch (r_type) |
620 | 903 | { |
621 | 0 | case R_SPARC_JMP_IREL: |
622 | 0 | return &sparc_jmp_irel_howto; |
623 | | |
624 | 0 | case R_SPARC_IRELATIVE: |
625 | 0 | return &sparc_irelative_howto; |
626 | | |
627 | 0 | case R_SPARC_GNU_VTINHERIT: |
628 | 0 | return &sparc_vtinherit_howto; |
629 | | |
630 | 0 | case R_SPARC_GNU_VTENTRY: |
631 | 0 | return &sparc_vtentry_howto; |
632 | | |
633 | 0 | case R_SPARC_REV32: |
634 | 0 | return &sparc_rev32_howto; |
635 | | |
636 | 903 | default: |
637 | 903 | if (r_type >= (unsigned int) R_SPARC_max_std) |
638 | 1 | { |
639 | 1 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
640 | 1 | abfd, r_type); |
641 | 1 | bfd_set_error (bfd_error_bad_value); |
642 | 1 | return NULL; |
643 | 1 | } |
644 | 902 | return &_bfd_sparc_elf_howto_table[r_type]; |
645 | 903 | } |
646 | 903 | } |
647 | | |
648 | | /* Both 32-bit and 64-bit sparc encode this in an identical manner, |
649 | | so just take advantage of that. */ |
650 | | #define SPARC_ELF_R_TYPE(r_info) \ |
651 | 903 | ((r_info) & 0xff) |
652 | | |
653 | | bool |
654 | | _bfd_sparc_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, |
655 | | Elf_Internal_Rela *dst) |
656 | 903 | { |
657 | 903 | unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info); |
658 | | |
659 | 903 | if ((cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (abfd, r_type)) == NULL) |
660 | 1 | { |
661 | 1 | bfd_set_error (bfd_error_bad_value); |
662 | 1 | return false; |
663 | 1 | } |
664 | 902 | return true; |
665 | 903 | } |
666 | | |
667 | | |
668 | | /* The nop opcode we use. */ |
669 | 0 | #define SPARC_NOP 0x01000000 |
670 | | |
671 | 0 | #define SPARC_INSN_BYTES 4 |
672 | | |
673 | | /* Is an undefined weak symbol resolved to 0 ? |
674 | | Reference to an undefined weak symbol is resolved to 0 when |
675 | | building an executable if it isn't dynamic and |
676 | | 1. Has non-GOT/non-PLT relocations in text section. |
677 | | Or |
678 | | 2. Has no GOT/PLT relocation. */ |
679 | | #define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, EH) \ |
680 | 0 | ((EH)->elf.root.type == bfd_link_hash_undefweak \ |
681 | 0 | && bfd_link_executable (INFO) \ |
682 | 0 | && (_bfd_sparc_elf_hash_table (INFO)->interp == NULL \ |
683 | 0 | || !(INFO)->dynamic_undefined_weak \ |
684 | 0 | || (EH)->has_non_got_reloc \ |
685 | 0 | || !(EH)->has_got_reloc)) |
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 | 0 | #define GOT_UNKNOWN 0 |
694 | 0 | #define GOT_NORMAL 1 |
695 | 0 | #define GOT_TLS_GD 2 |
696 | 0 | #define GOT_TLS_IE 3 |
697 | | unsigned char tls_type; |
698 | | |
699 | | /* Symbol has GOT or PLT relocations. */ |
700 | | unsigned int has_got_reloc : 1; |
701 | | |
702 | | /* Symbol has old-style, non-relaxable GOT relocations. */ |
703 | | unsigned int has_old_style_got_reloc : 1; |
704 | | |
705 | | /* Symbol has non-GOT/non-PLT relocations in text sections. */ |
706 | | unsigned int has_non_got_reloc : 1; |
707 | | |
708 | | }; |
709 | | |
710 | 0 | #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent)) |
711 | | |
712 | | struct _bfd_sparc_elf_obj_tdata |
713 | | { |
714 | | struct elf_obj_tdata root; |
715 | | |
716 | | /* tls_type for each local got entry. */ |
717 | | char *local_got_tls_type; |
718 | | |
719 | | /* TRUE if TLS GD relocs has been seen for this object. */ |
720 | | bool has_tlsgd; |
721 | | }; |
722 | | |
723 | | #define _bfd_sparc_elf_tdata(abfd) \ |
724 | 0 | ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any) |
725 | | |
726 | | #define _bfd_sparc_elf_local_got_tls_type(abfd) \ |
727 | 0 | (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type) |
728 | | |
729 | | #define is_sparc_elf(bfd) \ |
730 | 0 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ |
731 | 0 | && elf_tdata (bfd) != NULL \ |
732 | 0 | && elf_object_id (bfd) == SPARC_ELF_DATA) |
733 | | |
734 | | bool |
735 | | _bfd_sparc_elf_mkobject (bfd *abfd) |
736 | 215k | { |
737 | 215k | return bfd_elf_allocate_object (abfd, |
738 | 215k | sizeof (struct _bfd_sparc_elf_obj_tdata)); |
739 | 215k | } |
740 | | |
741 | | static void |
742 | | sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr) |
743 | 0 | { |
744 | 0 | bfd_put_32 (abfd, val, ptr); |
745 | 0 | } |
746 | | |
747 | | static void |
748 | | sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr) |
749 | 0 | { |
750 | 0 | bfd_put_64 (abfd, val, ptr); |
751 | 0 | } |
752 | | |
753 | | static void |
754 | | sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel) |
755 | 0 | { |
756 | 0 | const struct elf_backend_data *bed; |
757 | 0 | bfd_byte *loc; |
758 | |
|
759 | 0 | bed = get_elf_backend_data (abfd); |
760 | 0 | BFD_ASSERT (s->reloc_count * bed->s->sizeof_rela < s->size); |
761 | 0 | loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela); |
762 | 0 | bed->s->swap_reloca_out (abfd, rel, loc); |
763 | 0 | } |
764 | | |
765 | | static bfd_vma |
766 | | sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED, |
767 | | bfd_vma rel_index ATTRIBUTE_UNUSED, |
768 | | bfd_vma type ATTRIBUTE_UNUSED) |
769 | 0 | { |
770 | 0 | return ELF64_R_INFO (rel_index, |
771 | 0 | (in_rel ? |
772 | 0 | ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info), |
773 | 0 | type) : type)); |
774 | 0 | } |
775 | | |
776 | | static bfd_vma |
777 | | sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED, |
778 | | bfd_vma rel_index, bfd_vma type) |
779 | 0 | { |
780 | 0 | return ELF32_R_INFO (rel_index, type); |
781 | 0 | } |
782 | | |
783 | | static bfd_vma |
784 | | sparc_elf_r_symndx_64 (bfd_vma r_info) |
785 | 0 | { |
786 | 0 | bfd_vma r_symndx = ELF32_R_SYM (r_info); |
787 | 0 | return (r_symndx >> 24); |
788 | 0 | } |
789 | | |
790 | | static bfd_vma |
791 | | sparc_elf_r_symndx_32 (bfd_vma r_info) |
792 | 0 | { |
793 | 0 | return ELF32_R_SYM (r_info); |
794 | 0 | } |
795 | | |
796 | | /* PLT/GOT stuff */ |
797 | | |
798 | 0 | #define PLT32_ENTRY_SIZE 12 |
799 | 0 | #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE) |
800 | | |
801 | | /* The first four entries in a 32-bit procedure linkage table are reserved, |
802 | | and the initial contents are unimportant (we zero them out). |
803 | | Subsequent entries look like this. See the SVR4 ABI SPARC |
804 | | supplement to see how this works. */ |
805 | | |
806 | | /* sethi %hi(.-.plt0),%g1. We fill in the address later. */ |
807 | | #define PLT32_ENTRY_WORD0 0x03000000 |
808 | | /* b,a .plt0. We fill in the offset later. */ |
809 | | #define PLT32_ENTRY_WORD1 0x30800000 |
810 | | /* nop. */ |
811 | | #define PLT32_ENTRY_WORD2 SPARC_NOP |
812 | | |
813 | | static int |
814 | | sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset, |
815 | | bfd_vma max ATTRIBUTE_UNUSED, |
816 | | bfd_vma *r_offset) |
817 | 0 | { |
818 | 0 | bfd_put_32 (output_bfd, |
819 | 0 | PLT32_ENTRY_WORD0 + offset, |
820 | 0 | splt->contents + offset); |
821 | 0 | bfd_put_32 (output_bfd, |
822 | 0 | (PLT32_ENTRY_WORD1 |
823 | 0 | + (((- (offset + 4)) >> 2) & 0x3fffff)), |
824 | 0 | splt->contents + offset + 4); |
825 | 0 | bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2, |
826 | 0 | splt->contents + offset + 8); |
827 | |
|
828 | 0 | *r_offset = offset; |
829 | |
|
830 | 0 | return offset / PLT32_ENTRY_SIZE - 4; |
831 | 0 | } |
832 | | |
833 | | /* Both the headers and the entries are icache aligned. */ |
834 | 0 | #define PLT64_ENTRY_SIZE 32 |
835 | 0 | #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE) |
836 | 0 | #define PLT64_LARGE_THRESHOLD 32768 |
837 | | |
838 | | static int |
839 | | sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset, |
840 | | bfd_vma max, bfd_vma *r_offset) |
841 | 0 | { |
842 | 0 | unsigned char *entry = splt->contents + offset; |
843 | 0 | const unsigned int nop = SPARC_NOP; |
844 | 0 | int plt_index; |
845 | |
|
846 | 0 | if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)) |
847 | 0 | { |
848 | 0 | unsigned int sethi, ba; |
849 | |
|
850 | 0 | *r_offset = offset; |
851 | |
|
852 | 0 | plt_index = (offset / PLT64_ENTRY_SIZE); |
853 | |
|
854 | 0 | sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE); |
855 | 0 | ba = 0x30680000 |
856 | 0 | | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff); |
857 | |
|
858 | 0 | bfd_put_32 (output_bfd, (bfd_vma) sethi, entry); |
859 | 0 | bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4); |
860 | 0 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8); |
861 | 0 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12); |
862 | 0 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16); |
863 | 0 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20); |
864 | 0 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24); |
865 | 0 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28); |
866 | 0 | } |
867 | 0 | else |
868 | 0 | { |
869 | 0 | unsigned char *ptr; |
870 | 0 | unsigned int ldx; |
871 | 0 | int block, last_block, ofs, last_ofs, chunks_this_block; |
872 | 0 | const int insn_chunk_size = (6 * 4); |
873 | 0 | const int ptr_chunk_size = (1 * 8); |
874 | 0 | const int entries_per_block = 160; |
875 | 0 | const int block_size = entries_per_block * (insn_chunk_size |
876 | 0 | + ptr_chunk_size); |
877 | | |
878 | | /* Entries 32768 and higher are grouped into blocks of 160. |
879 | | The blocks are further subdivided into 160 sequences of |
880 | | 6 instructions and 160 pointers. If a block does not require |
881 | | the full 160 entries, let's say it requires N, then there |
882 | | will be N sequences of 6 instructions and N pointers. */ |
883 | |
|
884 | 0 | offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE); |
885 | 0 | max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE); |
886 | |
|
887 | 0 | block = offset / block_size; |
888 | 0 | last_block = max / block_size; |
889 | 0 | if (block != last_block) |
890 | 0 | { |
891 | 0 | chunks_this_block = 160; |
892 | 0 | } |
893 | 0 | else |
894 | 0 | { |
895 | 0 | last_ofs = max % block_size; |
896 | 0 | chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size); |
897 | 0 | } |
898 | |
|
899 | 0 | ofs = offset % block_size; |
900 | |
|
901 | 0 | plt_index = (PLT64_LARGE_THRESHOLD + |
902 | 0 | (block * 160) + |
903 | 0 | (ofs / insn_chunk_size)); |
904 | |
|
905 | 0 | ptr = splt->contents |
906 | 0 | + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE) |
907 | 0 | + (block * block_size) |
908 | 0 | + (chunks_this_block * insn_chunk_size) |
909 | 0 | + (ofs / insn_chunk_size) * ptr_chunk_size; |
910 | |
|
911 | 0 | *r_offset = (bfd_vma) (ptr - splt->contents); |
912 | |
|
913 | 0 | ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff); |
914 | | |
915 | | /* mov %o7,%g5 |
916 | | call .+8 |
917 | | nop |
918 | | ldx [%o7+P],%g1 |
919 | | jmpl %o7+%g1,%g1 |
920 | | mov %g5,%o7 */ |
921 | 0 | bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry); |
922 | 0 | bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4); |
923 | 0 | bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8); |
924 | 0 | bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12); |
925 | 0 | bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16); |
926 | 0 | bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20); |
927 | |
|
928 | 0 | bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr); |
929 | 0 | } |
930 | |
|
931 | 0 | return plt_index - 4; |
932 | 0 | } |
933 | | |
934 | | /* The format of the first PLT entry in a VxWorks executable. */ |
935 | | static const bfd_vma sparc_vxworks_exec_plt0_entry[] = |
936 | | { |
937 | | 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */ |
938 | | 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */ |
939 | | 0xc4008000, /* ld [ %g2 ], %g2 */ |
940 | | 0x81c08000, /* jmp %g2 */ |
941 | | 0x01000000 /* nop */ |
942 | | }; |
943 | | |
944 | | /* The format of subsequent PLT entries. */ |
945 | | static const bfd_vma sparc_vxworks_exec_plt_entry[] = |
946 | | { |
947 | | 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */ |
948 | | 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */ |
949 | | 0xc2004000, /* ld [ %g1 ], %g1 */ |
950 | | 0x81c04000, /* jmp %g1 */ |
951 | | 0x01000000, /* nop */ |
952 | | 0x03000000, /* sethi %hi(f@pltindex), %g1 */ |
953 | | 0x10800000, /* b _PLT_resolve */ |
954 | | 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */ |
955 | | }; |
956 | | |
957 | | /* The format of the first PLT entry in a VxWorks shared object. */ |
958 | | static const bfd_vma sparc_vxworks_shared_plt0_entry[] = |
959 | | { |
960 | | 0xc405e008, /* ld [ %l7 + 8 ], %g2 */ |
961 | | 0x81c08000, /* jmp %g2 */ |
962 | | 0x01000000 /* nop */ |
963 | | }; |
964 | | |
965 | | /* The format of subsequent PLT entries. */ |
966 | | static const bfd_vma sparc_vxworks_shared_plt_entry[] = |
967 | | { |
968 | | 0x03000000, /* sethi %hi(f@got), %g1 */ |
969 | | 0x82106000, /* or %g1, %lo(f@got), %g1 */ |
970 | | 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */ |
971 | | 0x81c04000, /* jmp %g1 */ |
972 | | 0x01000000, /* nop */ |
973 | | 0x03000000, /* sethi %hi(f@pltindex), %g1 */ |
974 | | 0x10800000, /* b _PLT_resolve */ |
975 | | 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */ |
976 | | }; |
977 | | |
978 | | #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \ |
979 | 0 | htab->put_word(bfd, val, ptr) |
980 | | |
981 | | #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \ |
982 | 0 | htab->r_info(in_rel, index, type) |
983 | | |
984 | | #define SPARC_ELF_R_SYMNDX(htab, r_info) \ |
985 | 0 | htab->r_symndx(r_info) |
986 | | |
987 | | #define SPARC_ELF_WORD_BYTES(htab) \ |
988 | 0 | htab->bytes_per_word |
989 | | |
990 | | #define SPARC_ELF_RELA_BYTES(htab) \ |
991 | 0 | htab->bytes_per_rela |
992 | | |
993 | | #define SPARC_ELF_DTPOFF_RELOC(htab) \ |
994 | | htab->dtpoff_reloc |
995 | | |
996 | | #define SPARC_ELF_DTPMOD_RELOC(htab) \ |
997 | 0 | htab->dtpmod_reloc |
998 | | |
999 | | #define SPARC_ELF_TPOFF_RELOC(htab) \ |
1000 | 0 | htab->tpoff_reloc |
1001 | | |
1002 | | #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \ |
1003 | 0 | htab->build_plt_entry (obfd, splt, off, max, r_off) |
1004 | | |
1005 | | /* Create an entry in an SPARC ELF linker hash table. */ |
1006 | | |
1007 | | static struct bfd_hash_entry * |
1008 | | link_hash_newfunc (struct bfd_hash_entry *entry, |
1009 | | struct bfd_hash_table *table, const char *string) |
1010 | 0 | { |
1011 | | /* Allocate the structure if it has not already been allocated by a |
1012 | | subclass. */ |
1013 | 0 | if (entry == NULL) |
1014 | 0 | { |
1015 | 0 | entry = bfd_hash_allocate (table, |
1016 | 0 | sizeof (struct _bfd_sparc_elf_link_hash_entry)); |
1017 | 0 | if (entry == NULL) |
1018 | 0 | return entry; |
1019 | 0 | } |
1020 | | |
1021 | | /* Call the allocation method of the superclass. */ |
1022 | 0 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
1023 | 0 | if (entry != NULL) |
1024 | 0 | { |
1025 | 0 | struct _bfd_sparc_elf_link_hash_entry *eh; |
1026 | |
|
1027 | 0 | eh = (struct _bfd_sparc_elf_link_hash_entry *) entry; |
1028 | 0 | eh->tls_type = GOT_UNKNOWN; |
1029 | 0 | eh->has_got_reloc = 0; |
1030 | 0 | eh->has_non_got_reloc = 0; |
1031 | 0 | } |
1032 | |
|
1033 | 0 | return entry; |
1034 | 0 | } |
1035 | | |
1036 | | /* The name of the dynamic interpreter. This is put in the .interp |
1037 | | section. */ |
1038 | | |
1039 | 0 | #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" |
1040 | 0 | #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1" |
1041 | | |
1042 | | /* Compute a hash of a local hash entry. We use elf_link_hash_entry |
1043 | | for local symbol so that we can handle local STT_GNU_IFUNC symbols |
1044 | | as global symbol. We reuse indx and dynstr_index for local symbol |
1045 | | hash since they aren't used by global symbols in this backend. */ |
1046 | | |
1047 | | static hashval_t |
1048 | | elf_sparc_local_htab_hash (const void *ptr) |
1049 | 0 | { |
1050 | 0 | struct elf_link_hash_entry *h |
1051 | 0 | = (struct elf_link_hash_entry *) ptr; |
1052 | 0 | return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index); |
1053 | 0 | } |
1054 | | |
1055 | | /* Compare local hash entries. */ |
1056 | | |
1057 | | static int |
1058 | | elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2) |
1059 | 0 | { |
1060 | 0 | struct elf_link_hash_entry *h1 |
1061 | 0 | = (struct elf_link_hash_entry *) ptr1; |
1062 | 0 | struct elf_link_hash_entry *h2 |
1063 | 0 | = (struct elf_link_hash_entry *) ptr2; |
1064 | |
|
1065 | 0 | return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index; |
1066 | 0 | } |
1067 | | |
1068 | | /* Find and/or create a hash entry for local symbol. */ |
1069 | | |
1070 | | static struct elf_link_hash_entry * |
1071 | | elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab, |
1072 | | bfd *abfd, const Elf_Internal_Rela *rel, |
1073 | | bool create) |
1074 | 0 | { |
1075 | 0 | struct _bfd_sparc_elf_link_hash_entry e, *ret; |
1076 | 0 | asection *sec = abfd->sections; |
1077 | 0 | unsigned long r_symndx; |
1078 | 0 | hashval_t h; |
1079 | 0 | void **slot; |
1080 | |
|
1081 | 0 | r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info); |
1082 | 0 | h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx); |
1083 | |
|
1084 | 0 | e.elf.indx = sec->id; |
1085 | 0 | e.elf.dynstr_index = r_symndx; |
1086 | 0 | slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h, |
1087 | 0 | create ? INSERT : NO_INSERT); |
1088 | |
|
1089 | 0 | if (!slot) |
1090 | 0 | return NULL; |
1091 | | |
1092 | 0 | if (*slot) |
1093 | 0 | { |
1094 | 0 | ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot; |
1095 | 0 | return &ret->elf; |
1096 | 0 | } |
1097 | | |
1098 | 0 | ret = (struct _bfd_sparc_elf_link_hash_entry *) |
1099 | 0 | objalloc_alloc ((struct objalloc *) htab->loc_hash_memory, |
1100 | 0 | sizeof (struct _bfd_sparc_elf_link_hash_entry)); |
1101 | 0 | if (ret) |
1102 | 0 | { |
1103 | 0 | memset (ret, 0, sizeof (*ret)); |
1104 | 0 | ret->elf.indx = sec->id; |
1105 | 0 | ret->elf.dynstr_index = r_symndx; |
1106 | 0 | ret->elf.dynindx = -1; |
1107 | 0 | ret->elf.plt.offset = (bfd_vma) -1; |
1108 | 0 | ret->elf.got.offset = (bfd_vma) -1; |
1109 | 0 | *slot = ret; |
1110 | 0 | } |
1111 | 0 | return &ret->elf; |
1112 | 0 | } |
1113 | | |
1114 | | /* Destroy a SPARC ELF linker hash table. */ |
1115 | | |
1116 | | static void |
1117 | | _bfd_sparc_elf_link_hash_table_free (bfd *obfd) |
1118 | 0 | { |
1119 | 0 | struct _bfd_sparc_elf_link_hash_table *htab |
1120 | 0 | = (struct _bfd_sparc_elf_link_hash_table *) obfd->link.hash; |
1121 | |
|
1122 | 0 | if (htab->loc_hash_table) |
1123 | 0 | htab_delete (htab->loc_hash_table); |
1124 | 0 | if (htab->loc_hash_memory) |
1125 | 0 | objalloc_free ((struct objalloc *) htab->loc_hash_memory); |
1126 | 0 | _bfd_elf_link_hash_table_free (obfd); |
1127 | 0 | } |
1128 | | |
1129 | | /* Create a SPARC ELF linker hash table. */ |
1130 | | |
1131 | | struct bfd_link_hash_table * |
1132 | | _bfd_sparc_elf_link_hash_table_create (bfd *abfd) |
1133 | 0 | { |
1134 | 0 | struct _bfd_sparc_elf_link_hash_table *ret; |
1135 | 0 | size_t amt = sizeof (struct _bfd_sparc_elf_link_hash_table); |
1136 | |
|
1137 | 0 | ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt); |
1138 | 0 | if (ret == NULL) |
1139 | 0 | return NULL; |
1140 | | |
1141 | 0 | if (ABI_64_P (abfd)) |
1142 | 0 | { |
1143 | 0 | ret->put_word = sparc_put_word_64; |
1144 | 0 | ret->r_info = sparc_elf_r_info_64; |
1145 | 0 | ret->r_symndx = sparc_elf_r_symndx_64; |
1146 | 0 | ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64; |
1147 | 0 | ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64; |
1148 | 0 | ret->tpoff_reloc = R_SPARC_TLS_TPOFF64; |
1149 | 0 | ret->word_align_power = 3; |
1150 | 0 | ret->align_power_max = 4; |
1151 | 0 | ret->bytes_per_word = 8; |
1152 | 0 | ret->bytes_per_rela = sizeof (Elf64_External_Rela); |
1153 | 0 | ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER; |
1154 | 0 | ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER; |
1155 | |
|
1156 | 0 | ret->build_plt_entry = sparc64_plt_entry_build; |
1157 | 0 | ret->plt_header_size = PLT64_HEADER_SIZE; |
1158 | 0 | ret->plt_entry_size = PLT64_ENTRY_SIZE; |
1159 | 0 | } |
1160 | 0 | else |
1161 | 0 | { |
1162 | 0 | ret->put_word = sparc_put_word_32; |
1163 | 0 | ret->r_info = sparc_elf_r_info_32; |
1164 | 0 | ret->r_symndx = sparc_elf_r_symndx_32; |
1165 | 0 | ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32; |
1166 | 0 | ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32; |
1167 | 0 | ret->tpoff_reloc = R_SPARC_TLS_TPOFF32; |
1168 | 0 | ret->word_align_power = 2; |
1169 | 0 | ret->align_power_max = 3; |
1170 | 0 | ret->bytes_per_word = 4; |
1171 | 0 | ret->bytes_per_rela = sizeof (Elf32_External_Rela); |
1172 | 0 | ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER; |
1173 | 0 | ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER; |
1174 | |
|
1175 | 0 | ret->build_plt_entry = sparc32_plt_entry_build; |
1176 | 0 | ret->plt_header_size = PLT32_HEADER_SIZE; |
1177 | 0 | ret->plt_entry_size = PLT32_ENTRY_SIZE; |
1178 | 0 | } |
1179 | |
|
1180 | 0 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc, |
1181 | 0 | sizeof (struct _bfd_sparc_elf_link_hash_entry))) |
1182 | 0 | { |
1183 | 0 | free (ret); |
1184 | 0 | return NULL; |
1185 | 0 | } |
1186 | | |
1187 | 0 | ret->loc_hash_table = htab_try_create (1024, |
1188 | 0 | elf_sparc_local_htab_hash, |
1189 | 0 | elf_sparc_local_htab_eq, |
1190 | 0 | NULL); |
1191 | 0 | ret->loc_hash_memory = objalloc_create (); |
1192 | 0 | if (!ret->loc_hash_table || !ret->loc_hash_memory) |
1193 | 0 | { |
1194 | 0 | _bfd_sparc_elf_link_hash_table_free (abfd); |
1195 | 0 | return NULL; |
1196 | 0 | } |
1197 | 0 | ret->elf.root.hash_table_free = _bfd_sparc_elf_link_hash_table_free; |
1198 | |
|
1199 | 0 | return &ret->elf.root; |
1200 | 0 | } |
1201 | | |
1202 | | /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and |
1203 | | .rela.bss sections in DYNOBJ, and set up shortcuts to them in our |
1204 | | hash table. */ |
1205 | | |
1206 | | bool |
1207 | | _bfd_sparc_elf_create_dynamic_sections (bfd *dynobj, |
1208 | | struct bfd_link_info *info) |
1209 | 0 | { |
1210 | 0 | struct _bfd_sparc_elf_link_hash_table *htab; |
1211 | |
|
1212 | 0 | htab = _bfd_sparc_elf_hash_table (info); |
1213 | 0 | BFD_ASSERT (htab != NULL); |
1214 | |
|
1215 | 0 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
1216 | 0 | return false; |
1217 | | |
1218 | 0 | if (htab->elf.target_os == is_vxworks) |
1219 | 0 | { |
1220 | 0 | if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2)) |
1221 | 0 | return false; |
1222 | 0 | if (bfd_link_pic (info)) |
1223 | 0 | { |
1224 | 0 | htab->plt_header_size |
1225 | 0 | = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); |
1226 | 0 | htab->plt_entry_size |
1227 | 0 | = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry); |
1228 | 0 | } |
1229 | 0 | else |
1230 | 0 | { |
1231 | 0 | htab->plt_header_size |
1232 | 0 | = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry); |
1233 | 0 | htab->plt_entry_size |
1234 | 0 | = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry); |
1235 | 0 | } |
1236 | 0 | } |
1237 | | |
1238 | 0 | if (!htab->elf.splt || !htab->elf.srelplt || !htab->elf.sdynbss |
1239 | 0 | || (!bfd_link_pic (info) && !htab->elf.srelbss)) |
1240 | 0 | abort (); |
1241 | | |
1242 | 0 | return true; |
1243 | 0 | } |
1244 | | |
1245 | | static bool |
1246 | | create_ifunc_sections (bfd *abfd, struct bfd_link_info *info) |
1247 | 0 | { |
1248 | 0 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
1249 | 0 | struct elf_link_hash_table *htab = elf_hash_table (info); |
1250 | 0 | flagword flags, pltflags; |
1251 | 0 | asection *s; |
1252 | |
|
1253 | 0 | if (htab->irelifunc != NULL || htab->iplt != NULL) |
1254 | 0 | return true; |
1255 | | |
1256 | 0 | flags = bed->dynamic_sec_flags; |
1257 | 0 | pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD; |
1258 | |
|
1259 | 0 | s = bfd_make_section_with_flags (abfd, ".iplt", pltflags); |
1260 | 0 | if (s == NULL |
1261 | 0 | || !bfd_set_section_alignment (s, bed->plt_alignment)) |
1262 | 0 | return false; |
1263 | 0 | htab->iplt = s; |
1264 | |
|
1265 | 0 | s = bfd_make_section_with_flags (abfd, ".rela.iplt", |
1266 | 0 | flags | SEC_READONLY); |
1267 | 0 | if (s == NULL |
1268 | 0 | || !bfd_set_section_alignment (s, bed->s->log_file_align)) |
1269 | 0 | return false; |
1270 | 0 | htab->irelplt = s; |
1271 | |
|
1272 | 0 | return true; |
1273 | 0 | } |
1274 | | |
1275 | | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
1276 | | |
1277 | | void |
1278 | | _bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info, |
1279 | | struct elf_link_hash_entry *dir, |
1280 | | struct elf_link_hash_entry *ind) |
1281 | 0 | { |
1282 | 0 | struct _bfd_sparc_elf_link_hash_entry *edir, *eind; |
1283 | |
|
1284 | 0 | edir = (struct _bfd_sparc_elf_link_hash_entry *) dir; |
1285 | 0 | eind = (struct _bfd_sparc_elf_link_hash_entry *) ind; |
1286 | |
|
1287 | 0 | if (ind->root.type == bfd_link_hash_indirect && dir->got.refcount <= 0) |
1288 | 0 | { |
1289 | 0 | edir->tls_type = eind->tls_type; |
1290 | 0 | eind->tls_type = GOT_UNKNOWN; |
1291 | 0 | } |
1292 | | |
1293 | | /* Copy has_got_reloc and has_non_got_reloc. */ |
1294 | 0 | edir->has_got_reloc |= eind->has_got_reloc; |
1295 | 0 | edir->has_non_got_reloc |= eind->has_non_got_reloc; |
1296 | |
|
1297 | 0 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
1298 | 0 | } |
1299 | | |
1300 | | static int |
1301 | | sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd, |
1302 | | int r_type, int is_local) |
1303 | 0 | { |
1304 | 0 | if (! ABI_64_P (abfd) |
1305 | 0 | && r_type == R_SPARC_TLS_GD_HI22 |
1306 | 0 | && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd) |
1307 | 0 | return R_SPARC_REV32; |
1308 | | |
1309 | 0 | if (!bfd_link_executable (info)) |
1310 | 0 | return r_type; |
1311 | | |
1312 | 0 | switch (r_type) |
1313 | 0 | { |
1314 | 0 | case R_SPARC_TLS_GD_HI22: |
1315 | 0 | return is_local ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_IE_HI22; |
1316 | 0 | case R_SPARC_TLS_GD_LO10: |
1317 | 0 | return is_local ? R_SPARC_TLS_LE_LOX10 : R_SPARC_TLS_IE_LO10; |
1318 | 0 | case R_SPARC_TLS_LDM_HI22: |
1319 | 0 | return R_SPARC_TLS_LE_HIX22; |
1320 | 0 | case R_SPARC_TLS_LDM_LO10: |
1321 | 0 | return R_SPARC_TLS_LE_LOX10; |
1322 | 0 | case R_SPARC_TLS_IE_HI22: |
1323 | 0 | return is_local ? R_SPARC_TLS_LE_HIX22 : r_type; |
1324 | 0 | case R_SPARC_TLS_IE_LO10: |
1325 | 0 | return is_local ? R_SPARC_TLS_LE_LOX10 : r_type; |
1326 | 0 | } |
1327 | | |
1328 | 0 | return r_type; |
1329 | 0 | } |
1330 | | |
1331 | | /* Look through the relocs for a section during the first phase, and |
1332 | | allocate space in the global offset table or procedure linkage |
1333 | | table. */ |
1334 | | |
1335 | | bool |
1336 | | _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
1337 | | asection *sec, const Elf_Internal_Rela *relocs) |
1338 | 0 | { |
1339 | 0 | struct _bfd_sparc_elf_link_hash_table *htab; |
1340 | 0 | Elf_Internal_Shdr *symtab_hdr; |
1341 | 0 | struct elf_link_hash_entry **sym_hashes; |
1342 | 0 | const Elf_Internal_Rela *rel; |
1343 | 0 | const Elf_Internal_Rela *rel_end; |
1344 | 0 | asection *sreloc; |
1345 | 0 | int num_relocs; |
1346 | 0 | bool checked_tlsgd = false; |
1347 | |
|
1348 | 0 | if (bfd_link_relocatable (info)) |
1349 | 0 | return true; |
1350 | | |
1351 | 0 | htab = _bfd_sparc_elf_hash_table (info); |
1352 | 0 | BFD_ASSERT (htab != NULL); |
1353 | 0 | symtab_hdr = &elf_symtab_hdr (abfd); |
1354 | 0 | sym_hashes = elf_sym_hashes (abfd); |
1355 | |
|
1356 | 0 | sreloc = NULL; |
1357 | |
|
1358 | 0 | if (ABI_64_P (abfd)) |
1359 | 0 | num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec)); |
1360 | 0 | else |
1361 | 0 | num_relocs = sec->reloc_count; |
1362 | |
|
1363 | 0 | BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0); |
1364 | |
|
1365 | 0 | if (htab->elf.dynobj == NULL) |
1366 | 0 | htab->elf.dynobj = abfd; |
1367 | 0 | if (!create_ifunc_sections (htab->elf.dynobj, info)) |
1368 | 0 | return false; |
1369 | | |
1370 | 0 | rel_end = relocs + num_relocs; |
1371 | 0 | for (rel = relocs; rel < rel_end; rel++) |
1372 | 0 | { |
1373 | 0 | unsigned int r_type; |
1374 | 0 | unsigned int r_symndx; |
1375 | 0 | struct elf_link_hash_entry *h; |
1376 | 0 | struct _bfd_sparc_elf_link_hash_entry *eh; |
1377 | 0 | Elf_Internal_Sym *isym; |
1378 | |
|
1379 | 0 | r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info); |
1380 | 0 | r_type = SPARC_ELF_R_TYPE (rel->r_info); |
1381 | |
|
1382 | 0 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) |
1383 | 0 | { |
1384 | | /* xgettext:c-format */ |
1385 | 0 | _bfd_error_handler (_("%pB: bad symbol index: %d"), abfd, r_symndx); |
1386 | 0 | return false; |
1387 | 0 | } |
1388 | | |
1389 | 0 | isym = NULL; |
1390 | 0 | if (r_symndx < symtab_hdr->sh_info) |
1391 | 0 | { |
1392 | | /* A local symbol. */ |
1393 | 0 | isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache, abfd, |
1394 | 0 | r_symndx); |
1395 | 0 | if (isym == NULL) |
1396 | 0 | return false; |
1397 | | |
1398 | | /* Check relocation against local STT_GNU_IFUNC symbol. */ |
1399 | 0 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) |
1400 | 0 | { |
1401 | 0 | h = elf_sparc_get_local_sym_hash (htab, abfd, rel, true); |
1402 | 0 | if (h == NULL) |
1403 | 0 | return false; |
1404 | | |
1405 | | /* Fake a STT_GNU_IFUNC symbol. */ |
1406 | 0 | h->type = STT_GNU_IFUNC; |
1407 | 0 | h->def_regular = 1; |
1408 | 0 | h->ref_regular = 1; |
1409 | 0 | h->forced_local = 1; |
1410 | 0 | h->root.type = bfd_link_hash_defined; |
1411 | 0 | } |
1412 | 0 | else |
1413 | 0 | h = NULL; |
1414 | 0 | } |
1415 | 0 | else |
1416 | 0 | { |
1417 | 0 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
1418 | 0 | while (h->root.type == bfd_link_hash_indirect |
1419 | 0 | || h->root.type == bfd_link_hash_warning) |
1420 | 0 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
1421 | 0 | } |
1422 | | |
1423 | 0 | if (h && h->type == STT_GNU_IFUNC && h->def_regular) |
1424 | 0 | { |
1425 | 0 | h->ref_regular = 1; |
1426 | 0 | h->plt.refcount += 1; |
1427 | 0 | } |
1428 | | |
1429 | | /* If a relocation refers to _GLOBAL_OFFSET_TABLE_, create the .got. */ |
1430 | 0 | if (h != NULL |
1431 | 0 | && htab->elf.sgot == NULL |
1432 | 0 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) |
1433 | 0 | { |
1434 | 0 | if (!_bfd_elf_create_got_section (htab->elf.dynobj, info)) |
1435 | 0 | return false; |
1436 | 0 | BFD_ASSERT (h == htab->elf.hgot); |
1437 | 0 | } |
1438 | | |
1439 | | /* Compatibility with old R_SPARC_REV32 reloc conflicting |
1440 | | with R_SPARC_TLS_GD_HI22. */ |
1441 | 0 | if (! ABI_64_P (abfd) && ! checked_tlsgd) |
1442 | 0 | switch (r_type) |
1443 | 0 | { |
1444 | 0 | case R_SPARC_TLS_GD_HI22: |
1445 | 0 | { |
1446 | 0 | const Elf_Internal_Rela *relt; |
1447 | |
|
1448 | 0 | for (relt = rel + 1; relt < rel_end; relt++) |
1449 | 0 | if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10 |
1450 | 0 | || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD |
1451 | 0 | || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL) |
1452 | 0 | break; |
1453 | 0 | checked_tlsgd = true; |
1454 | 0 | _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end; |
1455 | 0 | } |
1456 | 0 | break; |
1457 | 0 | case R_SPARC_TLS_GD_LO10: |
1458 | 0 | case R_SPARC_TLS_GD_ADD: |
1459 | 0 | case R_SPARC_TLS_GD_CALL: |
1460 | 0 | checked_tlsgd = true; |
1461 | 0 | _bfd_sparc_elf_tdata (abfd)->has_tlsgd = true; |
1462 | 0 | break; |
1463 | 0 | } |
1464 | | |
1465 | 0 | r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL); |
1466 | 0 | eh = (struct _bfd_sparc_elf_link_hash_entry *) h; |
1467 | |
|
1468 | 0 | switch (r_type) |
1469 | 0 | { |
1470 | 0 | case R_SPARC_TLS_LDM_HI22: |
1471 | 0 | case R_SPARC_TLS_LDM_LO10: |
1472 | 0 | htab->tls_ldm_got.refcount += 1; |
1473 | 0 | if (eh != NULL) |
1474 | 0 | eh->has_got_reloc = 1; |
1475 | 0 | break; |
1476 | | |
1477 | 0 | case R_SPARC_TLS_LE_HIX22: |
1478 | 0 | case R_SPARC_TLS_LE_LOX10: |
1479 | 0 | if (!bfd_link_executable (info)) |
1480 | 0 | goto r_sparc_plt32; |
1481 | 0 | break; |
1482 | | |
1483 | 0 | case R_SPARC_TLS_IE_HI22: |
1484 | 0 | case R_SPARC_TLS_IE_LO10: |
1485 | 0 | if (!bfd_link_executable (info)) |
1486 | 0 | info->flags |= DF_STATIC_TLS; |
1487 | | /* Fall through */ |
1488 | |
|
1489 | 0 | case R_SPARC_GOT10: |
1490 | 0 | case R_SPARC_GOT13: |
1491 | 0 | case R_SPARC_GOT22: |
1492 | 0 | case R_SPARC_GOTDATA_HIX22: |
1493 | 0 | case R_SPARC_GOTDATA_LOX10: |
1494 | 0 | case R_SPARC_GOTDATA_OP_HIX22: |
1495 | 0 | case R_SPARC_GOTDATA_OP_LOX10: |
1496 | 0 | case R_SPARC_TLS_GD_HI22: |
1497 | 0 | case R_SPARC_TLS_GD_LO10: |
1498 | | /* This symbol requires a global offset table entry. */ |
1499 | 0 | { |
1500 | 0 | int tls_type, old_tls_type; |
1501 | |
|
1502 | 0 | switch (r_type) |
1503 | 0 | { |
1504 | 0 | case R_SPARC_TLS_GD_HI22: |
1505 | 0 | case R_SPARC_TLS_GD_LO10: |
1506 | 0 | tls_type = GOT_TLS_GD; |
1507 | 0 | break; |
1508 | 0 | case R_SPARC_TLS_IE_HI22: |
1509 | 0 | case R_SPARC_TLS_IE_LO10: |
1510 | 0 | tls_type = GOT_TLS_IE; |
1511 | 0 | break; |
1512 | 0 | default: |
1513 | 0 | tls_type = GOT_NORMAL; |
1514 | 0 | break; |
1515 | 0 | } |
1516 | | |
1517 | 0 | if (h != NULL) |
1518 | 0 | { |
1519 | 0 | h->got.refcount += 1; |
1520 | 0 | old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type; |
1521 | 0 | } |
1522 | 0 | else |
1523 | 0 | { |
1524 | 0 | bfd_signed_vma *local_got_refcounts; |
1525 | | |
1526 | | /* This is a global offset table entry for a local symbol. */ |
1527 | 0 | local_got_refcounts = elf_local_got_refcounts (abfd); |
1528 | 0 | if (local_got_refcounts == NULL) |
1529 | 0 | { |
1530 | 0 | bfd_size_type size; |
1531 | |
|
1532 | 0 | size = symtab_hdr->sh_info; |
1533 | 0 | size *= (sizeof (bfd_signed_vma) + sizeof(char)); |
1534 | 0 | local_got_refcounts = ((bfd_signed_vma *) |
1535 | 0 | bfd_zalloc (abfd, size)); |
1536 | 0 | if (local_got_refcounts == NULL) |
1537 | 0 | return false; |
1538 | 0 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
1539 | 0 | _bfd_sparc_elf_local_got_tls_type (abfd) |
1540 | 0 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); |
1541 | 0 | } |
1542 | | |
1543 | 0 | if (r_type != R_SPARC_GOTDATA_OP_HIX22 |
1544 | 0 | && r_type != R_SPARC_GOTDATA_OP_LOX10) |
1545 | 0 | local_got_refcounts[r_symndx] += 1; |
1546 | |
|
1547 | 0 | old_tls_type |
1548 | 0 | = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx]; |
1549 | 0 | } |
1550 | | |
1551 | | /* If a TLS symbol is accessed using IE at least once, there is no |
1552 | | point in using the dynamic model for it. */ |
1553 | 0 | if (old_tls_type != tls_type) |
1554 | 0 | { |
1555 | 0 | if (old_tls_type == GOT_UNKNOWN) |
1556 | 0 | ; |
1557 | 0 | else if (old_tls_type == GOT_TLS_GD && tls_type == GOT_TLS_IE) |
1558 | 0 | ; |
1559 | 0 | else if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD) |
1560 | 0 | tls_type = old_tls_type; |
1561 | 0 | else |
1562 | 0 | { |
1563 | 0 | _bfd_error_handler |
1564 | | /* xgettext:c-format */ |
1565 | 0 | (_("%pB: `%s' accessed both as normal and thread local symbol"), |
1566 | 0 | abfd, h ? h->root.root.string : "<local>"); |
1567 | 0 | return false; |
1568 | 0 | } |
1569 | | |
1570 | 0 | if (h != NULL) |
1571 | 0 | _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type; |
1572 | 0 | else |
1573 | 0 | _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type; |
1574 | 0 | } |
1575 | 0 | } |
1576 | | |
1577 | 0 | if (!htab->elf.sgot |
1578 | 0 | && !_bfd_elf_create_got_section (htab->elf.dynobj, info)) |
1579 | 0 | return false; |
1580 | | |
1581 | 0 | if (eh != NULL) |
1582 | 0 | { |
1583 | 0 | eh->has_got_reloc = 1; |
1584 | 0 | if (r_type == R_SPARC_GOT10 |
1585 | 0 | || r_type == R_SPARC_GOT13 |
1586 | 0 | || r_type == R_SPARC_GOT22) |
1587 | 0 | eh->has_old_style_got_reloc = 1; |
1588 | 0 | } |
1589 | 0 | break; |
1590 | | |
1591 | 0 | case R_SPARC_TLS_GD_CALL: |
1592 | 0 | case R_SPARC_TLS_LDM_CALL: |
1593 | 0 | if (bfd_link_executable (info)) |
1594 | 0 | break; |
1595 | | |
1596 | | /* Essentially R_SPARC_WPLT30 relocs against __tls_get_addr. */ |
1597 | 0 | h = (struct elf_link_hash_entry *) |
1598 | 0 | bfd_link_hash_lookup (info->hash, "__tls_get_addr", false, |
1599 | 0 | false, true); |
1600 | 0 | BFD_ASSERT (h != NULL); |
1601 | | /* Fall through */ |
1602 | |
|
1603 | 0 | case R_SPARC_WPLT30: |
1604 | 0 | case R_SPARC_PLT32: |
1605 | 0 | case R_SPARC_PLT64: |
1606 | 0 | case R_SPARC_HIPLT22: |
1607 | 0 | case R_SPARC_LOPLT10: |
1608 | 0 | case R_SPARC_PCPLT32: |
1609 | 0 | case R_SPARC_PCPLT22: |
1610 | 0 | case R_SPARC_PCPLT10: |
1611 | | /* This symbol requires a procedure linkage table entry. |
1612 | | We actually build the entry in adjust_dynamic_symbol, |
1613 | | because this might be a case of linking PIC code without |
1614 | | linking in any dynamic objects, in which case we don't |
1615 | | need to generate a procedure linkage table after all. */ |
1616 | |
|
1617 | 0 | if (h == NULL) |
1618 | 0 | { |
1619 | 0 | if (! ABI_64_P (abfd)) |
1620 | 0 | { |
1621 | | /* The Solaris native assembler will generate a WPLT30 |
1622 | | reloc for a local symbol if you assemble a call from |
1623 | | one section to another when using -K pic. We treat |
1624 | | it as WDISP30. */ |
1625 | 0 | if (r_type == R_SPARC_PLT32) |
1626 | 0 | goto r_sparc_plt32; |
1627 | 0 | break; |
1628 | 0 | } |
1629 | | /* PR 7027: We need similar behaviour for 64-bit binaries. */ |
1630 | 0 | else if (r_type == R_SPARC_WPLT30) |
1631 | 0 | break; |
1632 | | |
1633 | | /* It does not make sense to have a procedure linkage |
1634 | | table entry for a local symbol. */ |
1635 | 0 | bfd_set_error (bfd_error_bad_value); |
1636 | 0 | return false; |
1637 | 0 | } |
1638 | | |
1639 | 0 | h->needs_plt = 1; |
1640 | |
|
1641 | 0 | if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64) |
1642 | 0 | goto r_sparc_plt32; |
1643 | | |
1644 | 0 | h->plt.refcount += 1; |
1645 | |
|
1646 | 0 | eh = (struct _bfd_sparc_elf_link_hash_entry *) h; |
1647 | 0 | eh->has_got_reloc = 1; |
1648 | 0 | break; |
1649 | | |
1650 | 0 | case R_SPARC_PC10: |
1651 | 0 | case R_SPARC_PC22: |
1652 | 0 | case R_SPARC_PC_HH22: |
1653 | 0 | case R_SPARC_PC_HM10: |
1654 | 0 | case R_SPARC_PC_LM22: |
1655 | 0 | if (h != NULL) |
1656 | 0 | h->non_got_ref = 1; |
1657 | |
|
1658 | 0 | if (h != NULL && h == htab->elf.hgot) |
1659 | 0 | break; |
1660 | | /* Fall through. */ |
1661 | | |
1662 | 0 | case R_SPARC_DISP8: |
1663 | 0 | case R_SPARC_DISP16: |
1664 | 0 | case R_SPARC_DISP32: |
1665 | 0 | case R_SPARC_DISP64: |
1666 | 0 | case R_SPARC_WDISP30: |
1667 | 0 | case R_SPARC_WDISP22: |
1668 | 0 | case R_SPARC_WDISP19: |
1669 | 0 | case R_SPARC_WDISP16: |
1670 | 0 | case R_SPARC_WDISP10: |
1671 | 0 | case R_SPARC_8: |
1672 | 0 | case R_SPARC_16: |
1673 | 0 | case R_SPARC_32: |
1674 | 0 | case R_SPARC_HI22: |
1675 | 0 | case R_SPARC_22: |
1676 | 0 | case R_SPARC_13: |
1677 | 0 | case R_SPARC_LO10: |
1678 | 0 | case R_SPARC_UA16: |
1679 | 0 | case R_SPARC_UA32: |
1680 | 0 | case R_SPARC_10: |
1681 | 0 | case R_SPARC_11: |
1682 | 0 | case R_SPARC_64: |
1683 | 0 | case R_SPARC_OLO10: |
1684 | 0 | case R_SPARC_HH22: |
1685 | 0 | case R_SPARC_HM10: |
1686 | 0 | case R_SPARC_LM22: |
1687 | 0 | case R_SPARC_7: |
1688 | 0 | case R_SPARC_5: |
1689 | 0 | case R_SPARC_6: |
1690 | 0 | case R_SPARC_HIX22: |
1691 | 0 | case R_SPARC_LOX10: |
1692 | 0 | case R_SPARC_H44: |
1693 | 0 | case R_SPARC_M44: |
1694 | 0 | case R_SPARC_L44: |
1695 | 0 | case R_SPARC_H34: |
1696 | 0 | case R_SPARC_UA64: |
1697 | 0 | if (h != NULL) |
1698 | 0 | h->non_got_ref = 1; |
1699 | |
|
1700 | 0 | if (eh != NULL && (sec->flags & SEC_CODE) != 0) |
1701 | 0 | eh->has_non_got_reloc = 1; |
1702 | |
|
1703 | 0 | r_sparc_plt32: |
1704 | 0 | if (h != NULL && !bfd_link_pic (info)) |
1705 | 0 | { |
1706 | | /* We may need a .plt entry if the function this reloc |
1707 | | refers to is in a shared lib. */ |
1708 | 0 | h->plt.refcount += 1; |
1709 | 0 | } |
1710 | | |
1711 | | /* If we are creating a shared library, and this is a reloc |
1712 | | against a global symbol, or a non PC relative reloc |
1713 | | against a local symbol, then we need to copy the reloc |
1714 | | into the shared library. However, if we are linking with |
1715 | | -Bsymbolic, we do not need to copy a reloc against a |
1716 | | global symbol which is defined in an object we are |
1717 | | including in the link (i.e., DEF_REGULAR is set). At |
1718 | | this point we have not seen all the input files, so it is |
1719 | | possible that DEF_REGULAR is not set now but will be set |
1720 | | later (it is never cleared). In case of a weak definition, |
1721 | | DEF_REGULAR may be cleared later by a strong definition in |
1722 | | a shared library. We account for that possibility below by |
1723 | | storing information in the relocs_copied field of the hash |
1724 | | table entry. A similar situation occurs when creating |
1725 | | shared libraries and symbol visibility changes render the |
1726 | | symbol local. |
1727 | | |
1728 | | If on the other hand, we are creating an executable, we |
1729 | | may need to keep relocations for symbols satisfied by a |
1730 | | dynamic library if we manage to avoid copy relocs for the |
1731 | | symbol. */ |
1732 | 0 | if ((bfd_link_pic (info) |
1733 | 0 | && (sec->flags & SEC_ALLOC) != 0 |
1734 | 0 | && (! _bfd_sparc_elf_howto_table[r_type].pc_relative |
1735 | 0 | || (h != NULL |
1736 | 0 | && (! SYMBOLIC_BIND (info, h) |
1737 | 0 | || h->root.type == bfd_link_hash_defweak |
1738 | 0 | || !h->def_regular)))) |
1739 | 0 | || (!bfd_link_pic (info) |
1740 | 0 | && (sec->flags & SEC_ALLOC) != 0 |
1741 | 0 | && h != NULL |
1742 | 0 | && (h->root.type == bfd_link_hash_defweak |
1743 | 0 | || !h->def_regular)) |
1744 | 0 | || (!bfd_link_pic (info) |
1745 | 0 | && h != NULL |
1746 | 0 | && h->type == STT_GNU_IFUNC)) |
1747 | 0 | { |
1748 | 0 | struct elf_dyn_relocs *p; |
1749 | 0 | struct elf_dyn_relocs **head; |
1750 | | |
1751 | | /* When creating a shared object, we must copy these |
1752 | | relocs into the output file. We create a reloc |
1753 | | section in dynobj and make room for the reloc. */ |
1754 | 0 | if (sreloc == NULL) |
1755 | 0 | { |
1756 | 0 | sreloc = _bfd_elf_make_dynamic_reloc_section |
1757 | 0 | (sec, htab->elf.dynobj, htab->word_align_power, |
1758 | 0 | abfd, /*rela?*/ true); |
1759 | |
|
1760 | 0 | if (sreloc == NULL) |
1761 | 0 | return false; |
1762 | 0 | } |
1763 | | |
1764 | | /* If this is a global symbol, we count the number of |
1765 | | relocations we need for this symbol. */ |
1766 | 0 | if (h != NULL) |
1767 | 0 | head = &h->dyn_relocs; |
1768 | 0 | else |
1769 | 0 | { |
1770 | | /* Track dynamic relocs needed for local syms too. |
1771 | | We really need local syms available to do this |
1772 | | easily. Oh well. */ |
1773 | 0 | asection *s; |
1774 | 0 | void *vpp; |
1775 | |
|
1776 | 0 | BFD_ASSERT (isym != NULL); |
1777 | 0 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
1778 | 0 | if (s == NULL) |
1779 | 0 | s = sec; |
1780 | |
|
1781 | 0 | vpp = &elf_section_data (s)->local_dynrel; |
1782 | 0 | head = (struct elf_dyn_relocs **) vpp; |
1783 | 0 | } |
1784 | |
|
1785 | 0 | p = *head; |
1786 | 0 | if (p == NULL || p->sec != sec) |
1787 | 0 | { |
1788 | 0 | size_t amt = sizeof *p; |
1789 | 0 | p = ((struct elf_dyn_relocs *) |
1790 | 0 | bfd_alloc (htab->elf.dynobj, amt)); |
1791 | 0 | if (p == NULL) |
1792 | 0 | return false; |
1793 | 0 | p->next = *head; |
1794 | 0 | *head = p; |
1795 | 0 | p->sec = sec; |
1796 | 0 | p->count = 0; |
1797 | 0 | p->pc_count = 0; |
1798 | 0 | } |
1799 | | |
1800 | 0 | p->count += 1; |
1801 | 0 | if (_bfd_sparc_elf_howto_table[r_type].pc_relative) |
1802 | 0 | p->pc_count += 1; |
1803 | 0 | } |
1804 | | |
1805 | 0 | break; |
1806 | | |
1807 | 0 | case R_SPARC_GNU_VTINHERIT: |
1808 | 0 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
1809 | 0 | return false; |
1810 | 0 | break; |
1811 | | |
1812 | 0 | case R_SPARC_GNU_VTENTRY: |
1813 | 0 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
1814 | 0 | return false; |
1815 | 0 | break; |
1816 | | |
1817 | 0 | case R_SPARC_REGISTER: |
1818 | | /* Nothing to do. */ |
1819 | 0 | break; |
1820 | | |
1821 | 0 | default: |
1822 | 0 | break; |
1823 | 0 | } |
1824 | 0 | } |
1825 | | |
1826 | 0 | return true; |
1827 | 0 | } |
1828 | | |
1829 | | asection * |
1830 | | _bfd_sparc_elf_gc_mark_hook (asection *sec, |
1831 | | struct bfd_link_info *info, |
1832 | | Elf_Internal_Rela *rel, |
1833 | | struct elf_link_hash_entry *h, |
1834 | | Elf_Internal_Sym *sym) |
1835 | 0 | { |
1836 | 0 | if (h != NULL) |
1837 | 0 | switch (SPARC_ELF_R_TYPE (rel->r_info)) |
1838 | 0 | { |
1839 | 0 | case R_SPARC_GNU_VTINHERIT: |
1840 | 0 | case R_SPARC_GNU_VTENTRY: |
1841 | 0 | return NULL; |
1842 | 0 | } |
1843 | | |
1844 | 0 | if (!bfd_link_executable (info)) |
1845 | 0 | { |
1846 | 0 | switch (SPARC_ELF_R_TYPE (rel->r_info)) |
1847 | 0 | { |
1848 | 0 | case R_SPARC_TLS_GD_CALL: |
1849 | 0 | case R_SPARC_TLS_LDM_CALL: |
1850 | | /* This reloc implicitly references __tls_get_addr. We know |
1851 | | another reloc will reference the same symbol as the one |
1852 | | on this reloc, so the real symbol and section will be |
1853 | | gc marked when processing the other reloc. That lets |
1854 | | us handle __tls_get_addr here. */ |
1855 | 0 | h = elf_link_hash_lookup (elf_hash_table (info), "__tls_get_addr", |
1856 | 0 | false, false, true); |
1857 | 0 | BFD_ASSERT (h != NULL); |
1858 | 0 | h->mark = 1; |
1859 | 0 | if (h->is_weakalias) |
1860 | 0 | weakdef (h)->mark = 1; |
1861 | 0 | sym = NULL; |
1862 | 0 | } |
1863 | 0 | } |
1864 | |
|
1865 | 0 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
1866 | 0 | } |
1867 | | |
1868 | | static Elf_Internal_Rela * |
1869 | | sparc_elf_find_reloc_at_ofs (Elf_Internal_Rela *rel, |
1870 | | Elf_Internal_Rela *relend, |
1871 | | bfd_vma offset) |
1872 | 0 | { |
1873 | 0 | while (rel < relend) |
1874 | 0 | { |
1875 | 0 | if (rel->r_offset == offset) |
1876 | 0 | return rel; |
1877 | 0 | rel++; |
1878 | 0 | } |
1879 | 0 | return NULL; |
1880 | 0 | } |
1881 | | |
1882 | | /* Remove undefined weak symbol from the dynamic symbol table if it |
1883 | | is resolved to 0. */ |
1884 | | |
1885 | | bool |
1886 | | _bfd_sparc_elf_fixup_symbol (struct bfd_link_info *info, |
1887 | | struct elf_link_hash_entry *h) |
1888 | 0 | { |
1889 | 0 | if (h->dynindx != -1 |
1890 | 0 | && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, |
1891 | 0 | _bfd_sparc_elf_hash_entry (h))) |
1892 | 0 | { |
1893 | 0 | h->dynindx = -1; |
1894 | 0 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, |
1895 | 0 | h->dynstr_index); |
1896 | 0 | } |
1897 | 0 | return true; |
1898 | 0 | } |
1899 | | |
1900 | | /* Adjust a symbol defined by a dynamic object and referenced by a |
1901 | | regular object. The current definition is in some section of the |
1902 | | dynamic object, but we're not including those sections. We have to |
1903 | | change the definition to something the rest of the link can |
1904 | | understand. */ |
1905 | | |
1906 | | bool |
1907 | | _bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
1908 | | struct elf_link_hash_entry *h) |
1909 | 0 | { |
1910 | 0 | struct _bfd_sparc_elf_link_hash_table *htab; |
1911 | 0 | asection *s, *srel; |
1912 | |
|
1913 | 0 | htab = _bfd_sparc_elf_hash_table (info); |
1914 | 0 | BFD_ASSERT (htab != NULL); |
1915 | | |
1916 | | /* Make sure we know what is going on here. */ |
1917 | 0 | BFD_ASSERT (htab->elf.dynobj != NULL |
1918 | 0 | && (h->needs_plt |
1919 | 0 | || h->type == STT_GNU_IFUNC |
1920 | 0 | || h->is_weakalias |
1921 | 0 | || (h->def_dynamic |
1922 | 0 | && h->ref_regular |
1923 | 0 | && !h->def_regular))); |
1924 | | |
1925 | | /* If this is a function, put it in the procedure linkage table. We |
1926 | | will fill in the contents of the procedure linkage table later |
1927 | | (although we could actually do it here). The STT_NOTYPE |
1928 | | condition is a hack specifically for the Oracle libraries |
1929 | | delivered for Solaris; for some inexplicable reason, they define |
1930 | | some of their functions as STT_NOTYPE when they really should be |
1931 | | STT_FUNC. */ |
1932 | 0 | if (h->type == STT_FUNC |
1933 | 0 | || h->type == STT_GNU_IFUNC |
1934 | 0 | || h->needs_plt |
1935 | 0 | || (h->type == STT_NOTYPE |
1936 | 0 | && (h->root.type == bfd_link_hash_defined |
1937 | 0 | || h->root.type == bfd_link_hash_defweak) |
1938 | 0 | && (h->root.u.def.section->flags & SEC_CODE) != 0)) |
1939 | 0 | { |
1940 | 0 | if (h->plt.refcount <= 0 |
1941 | 0 | || (h->type != STT_GNU_IFUNC |
1942 | 0 | && (SYMBOL_CALLS_LOCAL (info, h) |
1943 | 0 | || (h->root.type == bfd_link_hash_undefweak |
1944 | 0 | && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)))) |
1945 | 0 | { |
1946 | | /* This case can occur if we saw a WPLT30 reloc in an input |
1947 | | file, but the symbol was never referred to by a dynamic |
1948 | | object, or if all references were garbage collected. In |
1949 | | such a case, we don't actually need to build a procedure |
1950 | | linkage table, and we can just do a WDISP30 reloc instead. */ |
1951 | 0 | h->plt.offset = (bfd_vma) -1; |
1952 | 0 | h->needs_plt = 0; |
1953 | 0 | } |
1954 | |
|
1955 | 0 | return true; |
1956 | 0 | } |
1957 | 0 | else |
1958 | 0 | h->plt.offset = (bfd_vma) -1; |
1959 | | |
1960 | | /* If this is a weak symbol, and there is a real definition, the |
1961 | | processor independent code will have arranged for us to see the |
1962 | | real definition first, and we can just use the same value. */ |
1963 | 0 | if (h->is_weakalias) |
1964 | 0 | { |
1965 | 0 | struct elf_link_hash_entry *def = weakdef (h); |
1966 | 0 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); |
1967 | 0 | h->root.u.def.section = def->root.u.def.section; |
1968 | 0 | h->root.u.def.value = def->root.u.def.value; |
1969 | 0 | return true; |
1970 | 0 | } |
1971 | | |
1972 | | /* This is a reference to a symbol defined by a dynamic object which |
1973 | | is not a function. */ |
1974 | | |
1975 | | /* If we are creating a shared library, we must presume that the |
1976 | | only references to the symbol are via the global offset table. |
1977 | | For such cases we need not do anything here; the relocations will |
1978 | | be handled correctly by relocate_section. */ |
1979 | 0 | if (bfd_link_pic (info)) |
1980 | 0 | return true; |
1981 | | |
1982 | | /* If there are no references to this symbol that do not use the |
1983 | | GOT, we don't need to generate a copy reloc. */ |
1984 | 0 | if (!h->non_got_ref) |
1985 | 0 | return true; |
1986 | | |
1987 | | /* If -z nocopyreloc was given, we won't generate them either. */ |
1988 | 0 | if (info->nocopyreloc) |
1989 | 0 | { |
1990 | 0 | h->non_got_ref = 0; |
1991 | 0 | return true; |
1992 | 0 | } |
1993 | | |
1994 | | /* If we don't find any dynamic relocs in read-only sections, then |
1995 | | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
1996 | 0 | if (!_bfd_elf_readonly_dynrelocs (h)) |
1997 | 0 | { |
1998 | 0 | h->non_got_ref = 0; |
1999 | 0 | return true; |
2000 | 0 | } |
2001 | | |
2002 | | /* We must allocate the symbol in our .dynbss section, which will |
2003 | | become part of the .bss section of the executable. There will be |
2004 | | an entry for this symbol in the .dynsym section. The dynamic |
2005 | | object will contain position independent code, so all references |
2006 | | from the dynamic object to this symbol will go through the global |
2007 | | offset table. The dynamic linker will use the .dynsym entry to |
2008 | | determine the address it must put in the global offset table, so |
2009 | | both the dynamic object and the regular object will refer to the |
2010 | | same memory location for the variable. */ |
2011 | | |
2012 | | /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker |
2013 | | to copy the initial value out of the dynamic object and into the |
2014 | | runtime process image. We need to remember the offset into the |
2015 | | .rel.bss section we are going to use. */ |
2016 | 0 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
2017 | 0 | { |
2018 | 0 | s = htab->elf.sdynrelro; |
2019 | 0 | srel = htab->elf.sreldynrelro; |
2020 | 0 | } |
2021 | 0 | else |
2022 | 0 | { |
2023 | 0 | s = htab->elf.sdynbss; |
2024 | 0 | srel = htab->elf.srelbss; |
2025 | 0 | } |
2026 | 0 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
2027 | 0 | { |
2028 | 0 | srel->size += SPARC_ELF_RELA_BYTES (htab); |
2029 | 0 | h->needs_copy = 1; |
2030 | 0 | } |
2031 | |
|
2032 | 0 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
2033 | 0 | } |
2034 | | |
2035 | | /* Allocate space in .plt, .got and associated reloc sections for |
2036 | | dynamic relocs. */ |
2037 | | |
2038 | | static bool |
2039 | | allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) |
2040 | 0 | { |
2041 | 0 | struct bfd_link_info *info; |
2042 | 0 | struct _bfd_sparc_elf_link_hash_table *htab; |
2043 | 0 | struct _bfd_sparc_elf_link_hash_entry *eh; |
2044 | 0 | struct elf_dyn_relocs *p; |
2045 | 0 | bool resolved_to_zero; |
2046 | |
|
2047 | 0 | if (h->root.type == bfd_link_hash_indirect) |
2048 | 0 | return true; |
2049 | | |
2050 | 0 | info = (struct bfd_link_info *) inf; |
2051 | 0 | htab = _bfd_sparc_elf_hash_table (info); |
2052 | 0 | BFD_ASSERT (htab != NULL); |
2053 | |
|
2054 | 0 | eh = (struct _bfd_sparc_elf_link_hash_entry *) h; |
2055 | 0 | resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh); |
2056 | |
|
2057 | 0 | if ((htab->elf.dynamic_sections_created |
2058 | 0 | && h->plt.refcount > 0) |
2059 | 0 | || (h->type == STT_GNU_IFUNC |
2060 | 0 | && h->def_regular |
2061 | 0 | && h->ref_regular)) |
2062 | 0 | { |
2063 | | /* Undefined weak syms won't yet be marked as dynamic. */ |
2064 | 0 | if (h->root.type == bfd_link_hash_undefweak |
2065 | 0 | && !resolved_to_zero |
2066 | 0 | && h->dynindx == -1 |
2067 | 0 | && !h->forced_local) |
2068 | 0 | { |
2069 | 0 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
2070 | 0 | return false; |
2071 | 0 | } |
2072 | | |
2073 | 0 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h) |
2074 | 0 | || (h->type == STT_GNU_IFUNC |
2075 | 0 | && h->def_regular)) |
2076 | 0 | { |
2077 | 0 | asection *s = htab->elf.splt; |
2078 | |
|
2079 | 0 | if (s == NULL) |
2080 | 0 | s = htab->elf.iplt; |
2081 | | |
2082 | | /* Allocate room for the header. */ |
2083 | 0 | if (s->size == 0) |
2084 | 0 | { |
2085 | 0 | s->size = htab->plt_header_size; |
2086 | | |
2087 | | /* Allocate space for the .rela.plt.unloaded relocations. */ |
2088 | 0 | if (htab->elf.target_os == is_vxworks |
2089 | 0 | && !bfd_link_pic (info)) |
2090 | 0 | htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2; |
2091 | 0 | } |
2092 | | |
2093 | | /* The procedure linkage table size is bounded by the magnitude |
2094 | | of the offset we can describe in the entry. */ |
2095 | 0 | if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ? |
2096 | 0 | (((bfd_vma)1 << 31) << 1) : 0x400000)) |
2097 | 0 | { |
2098 | 0 | bfd_set_error (bfd_error_bad_value); |
2099 | 0 | return false; |
2100 | 0 | } |
2101 | | |
2102 | 0 | if (SPARC_ELF_WORD_BYTES(htab) == 8 |
2103 | 0 | && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE) |
2104 | 0 | { |
2105 | 0 | bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE; |
2106 | | |
2107 | |
|
2108 | 0 | off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE; |
2109 | |
|
2110 | 0 | h->plt.offset = (s->size - (off * 8)); |
2111 | 0 | } |
2112 | 0 | else |
2113 | 0 | h->plt.offset = s->size; |
2114 | | |
2115 | | /* If this symbol is not defined in a regular file, and we are |
2116 | | not generating a shared library, then set the symbol to this |
2117 | | location in the .plt. This is required to make function |
2118 | | pointers compare as equal between the normal executable and |
2119 | | the shared library. */ |
2120 | 0 | if (! bfd_link_pic (info) |
2121 | 0 | && !h->def_regular) |
2122 | 0 | { |
2123 | 0 | h->root.u.def.section = s; |
2124 | 0 | h->root.u.def.value = h->plt.offset; |
2125 | 0 | } |
2126 | | |
2127 | | /* Make room for this entry. */ |
2128 | 0 | s->size += htab->plt_entry_size; |
2129 | | |
2130 | | /* There should be no PLT relocations against resolved undefined |
2131 | | weak symbols in the executable. */ |
2132 | 0 | if (!resolved_to_zero) |
2133 | 0 | { |
2134 | | /* We also need to make an entry in the .rela.plt section. */ |
2135 | 0 | if (s == htab->elf.splt) |
2136 | 0 | htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab); |
2137 | 0 | else |
2138 | 0 | htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab); |
2139 | 0 | } |
2140 | |
|
2141 | 0 | if (htab->elf.target_os == is_vxworks) |
2142 | 0 | { |
2143 | | /* Allocate space for the .got.plt entry. */ |
2144 | 0 | htab->elf.sgotplt->size += 4; |
2145 | | |
2146 | | /* ...and for the .rela.plt.unloaded relocations. */ |
2147 | 0 | if (!bfd_link_pic (info)) |
2148 | 0 | htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3; |
2149 | 0 | } |
2150 | 0 | } |
2151 | 0 | else |
2152 | 0 | { |
2153 | 0 | h->plt.offset = (bfd_vma) -1; |
2154 | 0 | h->needs_plt = 0; |
2155 | 0 | } |
2156 | 0 | } |
2157 | 0 | else |
2158 | 0 | { |
2159 | 0 | h->plt.offset = (bfd_vma) -1; |
2160 | 0 | h->needs_plt = 0; |
2161 | 0 | } |
2162 | | |
2163 | | /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary, |
2164 | | make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */ |
2165 | 0 | if (h->got.refcount > 0 |
2166 | 0 | && bfd_link_executable (info) |
2167 | 0 | && h->dynindx == -1 |
2168 | 0 | && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE) |
2169 | 0 | h->got.offset = (bfd_vma) -1; |
2170 | 0 | else if (h->got.refcount > 0) |
2171 | 0 | { |
2172 | 0 | asection *s; |
2173 | 0 | bool dyn; |
2174 | 0 | int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type; |
2175 | | |
2176 | | /* Undefined weak syms won't yet be marked as dynamic. */ |
2177 | 0 | if (h->root.type == bfd_link_hash_undefweak |
2178 | 0 | && !resolved_to_zero |
2179 | 0 | && h->dynindx == -1 |
2180 | 0 | && !h->forced_local) |
2181 | 0 | { |
2182 | 0 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
2183 | 0 | return false; |
2184 | 0 | } |
2185 | | |
2186 | 0 | s = htab->elf.sgot; |
2187 | 0 | h->got.offset = s->size; |
2188 | 0 | s->size += SPARC_ELF_WORD_BYTES (htab); |
2189 | | /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */ |
2190 | 0 | if (tls_type == GOT_TLS_GD) |
2191 | 0 | s->size += SPARC_ELF_WORD_BYTES (htab); |
2192 | 0 | dyn = htab->elf.dynamic_sections_created; |
2193 | | /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation, |
2194 | | R_SPARC_TLS_GD_{HI22,LO10} needs one if local and two if global. */ |
2195 | 0 | if ((tls_type == GOT_TLS_GD && h->dynindx == -1) |
2196 | 0 | || tls_type == GOT_TLS_IE |
2197 | 0 | || h->type == STT_GNU_IFUNC) |
2198 | 0 | htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab); |
2199 | 0 | else if (tls_type == GOT_TLS_GD) |
2200 | 0 | htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab); |
2201 | 0 | else if ((WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h) |
2202 | | /* Even if the symbol isn't dynamic, we may generate a |
2203 | | reloc for the dynamic linker in PIC mode. */ |
2204 | 0 | || (h->dynindx == -1 |
2205 | 0 | && !h->forced_local |
2206 | 0 | && h->root.type != bfd_link_hash_undefweak |
2207 | 0 | && bfd_link_pic (info))) |
2208 | | /* No dynamic relocations are needed against resolved |
2209 | | undefined weak symbols in an executable. */ |
2210 | 0 | && !(h->root.type == bfd_link_hash_undefweak |
2211 | 0 | && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT |
2212 | 0 | || resolved_to_zero))) |
2213 | 0 | htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab); |
2214 | 0 | } |
2215 | 0 | else |
2216 | 0 | h->got.offset = (bfd_vma) -1; |
2217 | | |
2218 | 0 | if (h->dyn_relocs == NULL) |
2219 | 0 | return true; |
2220 | | |
2221 | | /* In the shared -Bsymbolic case, discard space allocated for |
2222 | | dynamic pc-relative relocs against symbols which turn out to be |
2223 | | defined in regular objects. For the normal shared case, discard |
2224 | | space for pc-relative relocs that have become local due to symbol |
2225 | | visibility changes. */ |
2226 | | |
2227 | 0 | if (bfd_link_pic (info)) |
2228 | 0 | { |
2229 | 0 | if (SYMBOL_CALLS_LOCAL (info, h)) |
2230 | 0 | { |
2231 | 0 | struct elf_dyn_relocs **pp; |
2232 | |
|
2233 | 0 | for (pp = &h->dyn_relocs; (p = *pp) != NULL; ) |
2234 | 0 | { |
2235 | 0 | p->count -= p->pc_count; |
2236 | 0 | p->pc_count = 0; |
2237 | 0 | if (p->count == 0) |
2238 | 0 | *pp = p->next; |
2239 | 0 | else |
2240 | 0 | pp = &p->next; |
2241 | 0 | } |
2242 | 0 | } |
2243 | |
|
2244 | 0 | if (htab->elf.target_os == is_vxworks) |
2245 | 0 | { |
2246 | 0 | struct elf_dyn_relocs **pp; |
2247 | |
|
2248 | 0 | for (pp = &h->dyn_relocs; (p = *pp) != NULL; ) |
2249 | 0 | { |
2250 | 0 | if (strcmp (p->sec->output_section->name, ".tls_vars") == 0) |
2251 | 0 | *pp = p->next; |
2252 | 0 | else |
2253 | 0 | pp = &p->next; |
2254 | 0 | } |
2255 | 0 | } |
2256 | | |
2257 | | /* Also discard relocs on undefined weak syms with non-default |
2258 | | visibility or in PIE. */ |
2259 | 0 | if (h->dyn_relocs != NULL |
2260 | 0 | && h->root.type == bfd_link_hash_undefweak) |
2261 | 0 | { |
2262 | | /* An undefined weak symbol is never |
2263 | | bound locally in a shared library. */ |
2264 | |
|
2265 | 0 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT |
2266 | 0 | || resolved_to_zero) |
2267 | 0 | { |
2268 | 0 | if (h->non_got_ref) |
2269 | 0 | { |
2270 | | /* Keep dynamic non-GOT/non-PLT relocation so that we |
2271 | | can branch to 0 without PLT. */ |
2272 | 0 | struct elf_dyn_relocs **pp; |
2273 | |
|
2274 | 0 | for (pp = &h->dyn_relocs; (p = *pp) != NULL;) |
2275 | 0 | if (p->pc_count == 0) |
2276 | 0 | *pp = p->next; |
2277 | 0 | else |
2278 | 0 | { |
2279 | | /* Remove other relocations. */ |
2280 | 0 | p->count = p->pc_count; |
2281 | 0 | pp = &p->next; |
2282 | 0 | } |
2283 | |
|
2284 | 0 | if (h->dyn_relocs != NULL) |
2285 | 0 | { |
2286 | | /* Make sure undefined weak symbols are output |
2287 | | as dynamic symbols in PIEs for dynamic non-GOT |
2288 | | non-PLT reloations. */ |
2289 | 0 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
2290 | 0 | return false; |
2291 | 0 | } |
2292 | 0 | } |
2293 | 0 | else |
2294 | 0 | h->dyn_relocs = NULL; |
2295 | 0 | } |
2296 | | |
2297 | | /* Make sure undefined weak symbols are output as a dynamic |
2298 | | symbol in PIEs. */ |
2299 | 0 | else if (h->dynindx == -1 |
2300 | 0 | && !h->forced_local) |
2301 | 0 | { |
2302 | 0 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
2303 | 0 | return false; |
2304 | 0 | } |
2305 | 0 | } |
2306 | 0 | } |
2307 | 0 | else |
2308 | 0 | { |
2309 | | /* For the non-shared case, discard space for relocs against |
2310 | | symbols which turn out to need copy relocs or are not |
2311 | | dynamic. */ |
2312 | |
|
2313 | 0 | if ((!h->non_got_ref |
2314 | 0 | || (h->root.type == bfd_link_hash_undefweak |
2315 | 0 | && !resolved_to_zero)) |
2316 | 0 | && ((h->def_dynamic |
2317 | 0 | && !h->def_regular) |
2318 | 0 | || (htab->elf.dynamic_sections_created |
2319 | 0 | && (h->root.type == bfd_link_hash_undefweak |
2320 | 0 | || h->root.type == bfd_link_hash_undefined)))) |
2321 | 0 | { |
2322 | | /* Undefined weak syms won't yet be marked as dynamic. */ |
2323 | 0 | if (h->root.type == bfd_link_hash_undefweak |
2324 | 0 | && !resolved_to_zero |
2325 | 0 | && h->dynindx == -1 |
2326 | 0 | && !h->forced_local) |
2327 | 0 | { |
2328 | 0 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
2329 | 0 | return false; |
2330 | 0 | } |
2331 | | |
2332 | | /* If that succeeded, we know we'll be keeping all the |
2333 | | relocs. */ |
2334 | 0 | if (h->dynindx != -1) |
2335 | 0 | goto keep; |
2336 | 0 | } |
2337 | | |
2338 | 0 | h->dyn_relocs = NULL; |
2339 | |
|
2340 | 0 | keep: ; |
2341 | 0 | } |
2342 | | |
2343 | | /* Finally, allocate space. */ |
2344 | 0 | for (p = h->dyn_relocs; p != NULL; p = p->next) |
2345 | 0 | { |
2346 | 0 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
2347 | 0 | sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab); |
2348 | 0 | } |
2349 | |
|
2350 | 0 | return true; |
2351 | 0 | } |
2352 | | |
2353 | | /* Allocate space in .plt, .got and associated reloc sections for |
2354 | | local dynamic relocs. */ |
2355 | | |
2356 | | static int |
2357 | | allocate_local_dynrelocs (void **slot, void *inf) |
2358 | 0 | { |
2359 | 0 | struct elf_link_hash_entry *h |
2360 | 0 | = (struct elf_link_hash_entry *) *slot; |
2361 | |
|
2362 | 0 | if (h->type != STT_GNU_IFUNC |
2363 | 0 | || !h->def_regular |
2364 | 0 | || !h->ref_regular |
2365 | 0 | || !h->forced_local |
2366 | 0 | || h->root.type != bfd_link_hash_defined) |
2367 | 0 | abort (); |
2368 | | |
2369 | 0 | return allocate_dynrelocs (h, inf); |
2370 | 0 | } |
2371 | | |
2372 | | /* Return true if the dynamic symbol for a given section should be |
2373 | | omitted when creating a shared library. */ |
2374 | | |
2375 | | bool |
2376 | | _bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd, |
2377 | | struct bfd_link_info *info, |
2378 | | asection *p) |
2379 | 0 | { |
2380 | | /* We keep the .got section symbol so that explicit relocations |
2381 | | against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode |
2382 | | can be turned into relocations against the .got symbol. */ |
2383 | 0 | if (strcmp (p->name, ".got") == 0) |
2384 | 0 | return false; |
2385 | | |
2386 | 0 | return _bfd_elf_omit_section_dynsym_default (output_bfd, info, p); |
2387 | 0 | } |
2388 | | |
2389 | | /* Set the sizes of the dynamic sections. */ |
2390 | | |
2391 | | bool |
2392 | | _bfd_sparc_elf_late_size_sections (bfd *output_bfd, |
2393 | | struct bfd_link_info *info) |
2394 | 0 | { |
2395 | 0 | struct _bfd_sparc_elf_link_hash_table *htab; |
2396 | 0 | bfd *dynobj; |
2397 | 0 | asection *s; |
2398 | 0 | bfd *ibfd; |
2399 | |
|
2400 | 0 | htab = _bfd_sparc_elf_hash_table (info); |
2401 | 0 | BFD_ASSERT (htab != NULL); |
2402 | 0 | dynobj = htab->elf.dynobj; |
2403 | 0 | if (dynobj == NULL) |
2404 | 0 | return true; |
2405 | | |
2406 | 0 | if (elf_hash_table (info)->dynamic_sections_created) |
2407 | 0 | { |
2408 | | /* Set the contents of the .interp section to the interpreter. */ |
2409 | 0 | if (bfd_link_executable (info) && !info->nointerp) |
2410 | 0 | { |
2411 | 0 | s = bfd_get_linker_section (dynobj, ".interp"); |
2412 | 0 | BFD_ASSERT (s != NULL); |
2413 | 0 | s->size = htab->dynamic_interpreter_size; |
2414 | 0 | s->contents = (unsigned char *) htab->dynamic_interpreter; |
2415 | 0 | s->alloced = 1; |
2416 | 0 | htab->interp = s; |
2417 | 0 | } |
2418 | 0 | } |
2419 | | |
2420 | | /* Set up .got offsets for local syms, and space for local dynamic |
2421 | | relocs. */ |
2422 | 0 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
2423 | 0 | { |
2424 | 0 | bfd_signed_vma *local_got; |
2425 | 0 | bfd_signed_vma *end_local_got; |
2426 | 0 | char *local_tls_type; |
2427 | 0 | bfd_size_type locsymcount; |
2428 | 0 | Elf_Internal_Shdr *symtab_hdr; |
2429 | 0 | asection *srel; |
2430 | |
|
2431 | 0 | if (! is_sparc_elf (ibfd)) |
2432 | 0 | continue; |
2433 | | |
2434 | 0 | for (s = ibfd->sections; s != NULL; s = s->next) |
2435 | 0 | { |
2436 | 0 | struct elf_dyn_relocs *p; |
2437 | |
|
2438 | 0 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
2439 | 0 | { |
2440 | 0 | if (!bfd_is_abs_section (p->sec) |
2441 | 0 | && bfd_is_abs_section (p->sec->output_section)) |
2442 | 0 | { |
2443 | | /* Input section has been discarded, either because |
2444 | | it is a copy of a linkonce section or due to |
2445 | | linker script /DISCARD/, so we'll be discarding |
2446 | | the relocs too. */ |
2447 | 0 | } |
2448 | 0 | else if (htab->elf.target_os == is_vxworks |
2449 | 0 | && strcmp (p->sec->output_section->name, |
2450 | 0 | ".tls_vars") == 0) |
2451 | 0 | { |
2452 | | /* Relocations in vxworks .tls_vars sections are |
2453 | | handled specially by the loader. */ |
2454 | 0 | } |
2455 | 0 | else if (p->count != 0) |
2456 | 0 | { |
2457 | 0 | srel = elf_section_data (p->sec)->sreloc; |
2458 | 0 | if (!htab->elf.dynamic_sections_created) |
2459 | 0 | srel = htab->elf.irelplt; |
2460 | 0 | srel->size += p->count * SPARC_ELF_RELA_BYTES (htab); |
2461 | 0 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
2462 | 0 | { |
2463 | 0 | info->flags |= DF_TEXTREL; |
2464 | 0 | info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"), |
2465 | 0 | p->sec->owner, p->sec); |
2466 | 0 | } |
2467 | 0 | } |
2468 | 0 | } |
2469 | 0 | } |
2470 | |
|
2471 | 0 | local_got = elf_local_got_refcounts (ibfd); |
2472 | 0 | if (!local_got) |
2473 | 0 | continue; |
2474 | | |
2475 | 0 | symtab_hdr = &elf_symtab_hdr (ibfd); |
2476 | 0 | locsymcount = symtab_hdr->sh_info; |
2477 | 0 | end_local_got = local_got + locsymcount; |
2478 | 0 | local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd); |
2479 | 0 | s = htab->elf.sgot; |
2480 | 0 | srel = htab->elf.srelgot; |
2481 | 0 | for (; local_got < end_local_got; ++local_got, ++local_tls_type) |
2482 | 0 | { |
2483 | 0 | if (*local_got > 0) |
2484 | 0 | { |
2485 | 0 | *local_got = s->size; |
2486 | 0 | s->size += SPARC_ELF_WORD_BYTES (htab); |
2487 | 0 | if (*local_tls_type == GOT_TLS_GD) |
2488 | 0 | s->size += SPARC_ELF_WORD_BYTES (htab); |
2489 | 0 | if (bfd_link_pic (info) |
2490 | 0 | || *local_tls_type == GOT_TLS_GD |
2491 | 0 | || *local_tls_type == GOT_TLS_IE) |
2492 | 0 | srel->size += SPARC_ELF_RELA_BYTES (htab); |
2493 | 0 | } |
2494 | 0 | else |
2495 | 0 | *local_got = (bfd_vma) -1; |
2496 | 0 | } |
2497 | 0 | } |
2498 | |
|
2499 | 0 | if (htab->tls_ldm_got.refcount > 0) |
2500 | 0 | { |
2501 | | /* Allocate 2 got entries and 1 dynamic reloc for |
2502 | | R_SPARC_TLS_LDM_{HI22,LO10} relocs. */ |
2503 | 0 | htab->tls_ldm_got.offset = htab->elf.sgot->size; |
2504 | 0 | htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab)); |
2505 | 0 | htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab); |
2506 | 0 | } |
2507 | 0 | else |
2508 | 0 | htab->tls_ldm_got.offset = -1; |
2509 | | |
2510 | | /* Allocate global sym .plt and .got entries, and space for global |
2511 | | sym dynamic relocs. */ |
2512 | 0 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
2513 | | |
2514 | | /* Allocate .plt and .got entries, and space for local symbols. */ |
2515 | 0 | htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info); |
2516 | |
|
2517 | 0 | if (! ABI_64_P (output_bfd) |
2518 | 0 | && htab->elf.target_os != is_vxworks |
2519 | 0 | && elf_hash_table (info)->dynamic_sections_created) |
2520 | 0 | { |
2521 | | /* Make space for the trailing nop in .plt. */ |
2522 | 0 | if (htab->elf.splt->size > 0) |
2523 | 0 | htab->elf.splt->size += 1 * SPARC_INSN_BYTES; |
2524 | | |
2525 | | /* If the .got section is more than 0x1000 bytes, we add |
2526 | | 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13 |
2527 | | bit relocations have a greater chance of working. |
2528 | | |
2529 | | FIXME: Make this optimization work for 64-bit too. */ |
2530 | 0 | if (htab->elf.sgot->size >= 0x1000 |
2531 | 0 | && elf_hash_table (info)->hgot->root.u.def.value == 0) |
2532 | 0 | elf_hash_table (info)->hgot->root.u.def.value = 0x1000; |
2533 | 0 | } |
2534 | | |
2535 | | /* The check_relocs and adjust_dynamic_symbol entry points have |
2536 | | determined the sizes of the various dynamic sections. Allocate |
2537 | | memory for them. */ |
2538 | 0 | for (s = dynobj->sections; s != NULL; s = s->next) |
2539 | 0 | { |
2540 | 0 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2541 | 0 | continue; |
2542 | | |
2543 | 0 | if (s == htab->elf.splt |
2544 | 0 | || s == htab->elf.sgot |
2545 | 0 | || s == htab->elf.sdynbss |
2546 | 0 | || s == htab->elf.sdynrelro |
2547 | 0 | || s == htab->elf.iplt |
2548 | 0 | || s == htab->elf.sgotplt) |
2549 | 0 | { |
2550 | | /* Strip this section if we don't need it; see the |
2551 | | comment below. */ |
2552 | 0 | } |
2553 | 0 | else if (startswith (s->name, ".rela")) |
2554 | 0 | { |
2555 | 0 | if (s->size != 0) |
2556 | 0 | { |
2557 | | /* We use the reloc_count field as a counter if we need |
2558 | | to copy relocs into the output file. */ |
2559 | 0 | s->reloc_count = 0; |
2560 | 0 | } |
2561 | 0 | } |
2562 | 0 | else |
2563 | 0 | { |
2564 | | /* It's not one of our sections. */ |
2565 | 0 | continue; |
2566 | 0 | } |
2567 | | |
2568 | 0 | if (s->size == 0) |
2569 | 0 | { |
2570 | | /* If we don't need this section, strip it from the |
2571 | | output file. This is mostly to handle .rela.bss and |
2572 | | .rela.plt. We must create both sections in |
2573 | | create_dynamic_sections, because they must be created |
2574 | | before the linker maps input sections to output |
2575 | | sections. The linker does that before |
2576 | | adjust_dynamic_symbol is called, and it is that |
2577 | | function which decides whether anything needs to go |
2578 | | into these sections. */ |
2579 | 0 | s->flags |= SEC_EXCLUDE; |
2580 | 0 | continue; |
2581 | 0 | } |
2582 | | |
2583 | 0 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
2584 | 0 | continue; |
2585 | | |
2586 | | /* Allocate memory for the section contents. Zero the memory |
2587 | | for the benefit of .rela.plt, which has 4 unused entries |
2588 | | at the beginning, and we don't want garbage. */ |
2589 | 0 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
2590 | 0 | if (s->contents == NULL) |
2591 | 0 | return false; |
2592 | 0 | s->alloced = 1; |
2593 | 0 | } |
2594 | | |
2595 | 0 | if (elf_hash_table (info)->dynamic_sections_created) |
2596 | 0 | { |
2597 | | /* Add some entries to the .dynamic section. We fill in the |
2598 | | values later, in _bfd_sparc_elf_finish_dynamic_sections, but we |
2599 | | must add the entries now so that we get the correct size for |
2600 | | the .dynamic section. The DT_DEBUG entry is filled in by the |
2601 | | dynamic linker and used by the debugger. */ |
2602 | 0 | #define add_dynamic_entry(TAG, VAL) \ |
2603 | 0 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
2604 | |
|
2605 | 0 | if (!_bfd_elf_maybe_vxworks_add_dynamic_tags (output_bfd, info, |
2606 | 0 | true)) |
2607 | 0 | return false; |
2608 | | |
2609 | 0 | if (ABI_64_P (output_bfd)) |
2610 | 0 | { |
2611 | 0 | int reg; |
2612 | 0 | struct _bfd_sparc_elf_app_reg * app_regs; |
2613 | 0 | struct elf_strtab_hash *dynstr; |
2614 | 0 | struct elf_link_hash_table *eht = elf_hash_table (info); |
2615 | | |
2616 | | /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER |
2617 | | entries if needed. */ |
2618 | 0 | app_regs = _bfd_sparc_elf_hash_table (info)->app_regs; |
2619 | 0 | dynstr = eht->dynstr; |
2620 | |
|
2621 | 0 | for (reg = 0; reg < 4; reg++) |
2622 | 0 | if (app_regs [reg].name != NULL) |
2623 | 0 | { |
2624 | 0 | struct elf_link_local_dynamic_entry *entry, *e; |
2625 | |
|
2626 | 0 | if (!add_dynamic_entry (DT_SPARC_REGISTER, 0)) |
2627 | 0 | return false; |
2628 | | |
2629 | 0 | entry = (struct elf_link_local_dynamic_entry *) |
2630 | 0 | bfd_hash_allocate (&info->hash->table, sizeof (*entry)); |
2631 | 0 | if (entry == NULL) |
2632 | 0 | return false; |
2633 | | |
2634 | | /* We cheat here a little bit: the symbol will not be local, so we |
2635 | | put it at the end of the dynlocal linked list. We will fix it |
2636 | | later on, as we have to fix other fields anyway. */ |
2637 | 0 | entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4; |
2638 | 0 | entry->isym.st_size = 0; |
2639 | 0 | if (*app_regs [reg].name != '\0') |
2640 | 0 | entry->isym.st_name |
2641 | 0 | = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, false); |
2642 | 0 | else |
2643 | 0 | entry->isym.st_name = 0; |
2644 | 0 | entry->isym.st_other = 0; |
2645 | 0 | entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind, |
2646 | 0 | STT_REGISTER); |
2647 | 0 | entry->isym.st_shndx = app_regs [reg].shndx; |
2648 | 0 | entry->isym.st_target_internal = 0; |
2649 | 0 | entry->next = NULL; |
2650 | 0 | entry->input_bfd = output_bfd; |
2651 | 0 | entry->input_indx = -1; |
2652 | |
|
2653 | 0 | if (eht->dynlocal == NULL) |
2654 | 0 | eht->dynlocal = entry; |
2655 | 0 | else |
2656 | 0 | { |
2657 | 0 | for (e = eht->dynlocal; e->next; e = e->next) |
2658 | 0 | ; |
2659 | 0 | e->next = entry; |
2660 | 0 | } |
2661 | 0 | eht->dynsymcount++; |
2662 | 0 | } |
2663 | 0 | } |
2664 | 0 | } |
2665 | 0 | #undef add_dynamic_entry |
2666 | | |
2667 | 0 | return true; |
2668 | 0 | } |
2669 | | |
2670 | | bool |
2671 | | _bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec) |
2672 | 43.0k | { |
2673 | 43.0k | struct _bfd_sparc_elf_section_data *sdata; |
2674 | | |
2675 | 43.0k | sdata = bfd_zalloc (abfd, sizeof (*sdata)); |
2676 | 43.0k | if (sdata == NULL) |
2677 | 0 | return false; |
2678 | 43.0k | sec->used_by_bfd = sdata; |
2679 | | |
2680 | 43.0k | return _bfd_elf_new_section_hook (abfd, sec); |
2681 | 43.0k | } |
2682 | | |
2683 | | bool |
2684 | | _bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED, |
2685 | | struct bfd_section *section, |
2686 | | struct bfd_link_info *link_info ATTRIBUTE_UNUSED, |
2687 | | bool *again) |
2688 | 0 | { |
2689 | 0 | if (bfd_link_relocatable (link_info)) |
2690 | 0 | link_info->callbacks->fatal |
2691 | 0 | (_("%P: --relax and -r may not be used together\n")); |
2692 | | |
2693 | 0 | *again = false; |
2694 | 0 | sec_do_relax (section) = 1; |
2695 | 0 | return true; |
2696 | 0 | } |
2697 | | |
2698 | | /* Return the base VMA address which should be subtracted from real addresses |
2699 | | when resolving @dtpoff relocation. |
2700 | | This is PT_TLS segment p_vaddr. */ |
2701 | | |
2702 | | static bfd_vma |
2703 | | dtpoff_base (struct bfd_link_info *info) |
2704 | 0 | { |
2705 | | /* If tls_sec is NULL, we should have signalled an error already. */ |
2706 | 0 | if (elf_hash_table (info)->tls_sec == NULL) |
2707 | 0 | return 0; |
2708 | 0 | return elf_hash_table (info)->tls_sec->vma; |
2709 | 0 | } |
2710 | | |
2711 | | /* Return the relocation value for @tpoff relocation |
2712 | | if STT_TLS virtual address is ADDRESS. */ |
2713 | | |
2714 | | static bfd_vma |
2715 | | tpoff (struct bfd_link_info *info, bfd_vma address) |
2716 | 0 | { |
2717 | 0 | struct elf_link_hash_table *htab = elf_hash_table (info); |
2718 | 0 | const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd); |
2719 | 0 | bfd_vma static_tls_size; |
2720 | | |
2721 | | /* If tls_sec is NULL, we should have signalled an error already. */ |
2722 | 0 | if (htab->tls_sec == NULL) |
2723 | 0 | return 0; |
2724 | | |
2725 | | /* Consider special static TLS alignment requirements. */ |
2726 | 0 | static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment); |
2727 | 0 | return address - static_tls_size - htab->tls_sec->vma; |
2728 | 0 | } |
2729 | | |
2730 | | /* Return the relocation value for a %gdop relocation. */ |
2731 | | |
2732 | | static bfd_vma |
2733 | | gdopoff (struct bfd_link_info *info, bfd_vma address) |
2734 | 0 | { |
2735 | 0 | struct elf_link_hash_table *htab = elf_hash_table (info); |
2736 | 0 | bfd_vma got_base; |
2737 | |
|
2738 | 0 | got_base = (htab->hgot->root.u.def.value |
2739 | 0 | + htab->hgot->root.u.def.section->output_offset |
2740 | 0 | + htab->hgot->root.u.def.section->output_section->vma); |
2741 | |
|
2742 | 0 | return address - got_base; |
2743 | 0 | } |
2744 | | |
2745 | | /* Return whether H is local and its ADDRESS is within 4G of |
2746 | | _GLOBAL_OFFSET_TABLE_ and thus the offset may be calculated by a |
2747 | | sethi, xor sequence. */ |
2748 | | |
2749 | | static bool |
2750 | | gdop_relative_offset_ok (struct bfd_link_info *info, |
2751 | | struct elf_link_hash_entry *h, |
2752 | | bfd_vma address ATTRIBUTE_UNUSED) |
2753 | 0 | { |
2754 | 0 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
2755 | 0 | return false; |
2756 | | /* If H is undefined, ADDRESS will be zero. We can't allow a |
2757 | | relative offset to "zero" when producing PIEs or shared libs. |
2758 | | Note that to get here with an undefined symbol it must also be |
2759 | | hidden or internal visibility. */ |
2760 | 0 | if (bfd_link_pic (info) |
2761 | 0 | && h != NULL |
2762 | 0 | && (h->root.type == bfd_link_hash_undefweak |
2763 | 0 | || h->root.type == bfd_link_hash_undefined)) |
2764 | 0 | return false; |
2765 | 0 | #ifdef BFD64 |
2766 | 0 | return gdopoff (info, address) + ((bfd_vma) 1 << 32) < (bfd_vma) 2 << 32; |
2767 | | #else |
2768 | | return true; |
2769 | | #endif |
2770 | 0 | } |
2771 | | |
2772 | | /* Relocate a SPARC ELF section. */ |
2773 | | |
2774 | | int |
2775 | | _bfd_sparc_elf_relocate_section (bfd *output_bfd, |
2776 | | struct bfd_link_info *info, |
2777 | | bfd *input_bfd, |
2778 | | asection *input_section, |
2779 | | bfd_byte *contents, |
2780 | | Elf_Internal_Rela *relocs, |
2781 | | Elf_Internal_Sym *local_syms, |
2782 | | asection **local_sections) |
2783 | 0 | { |
2784 | 0 | struct _bfd_sparc_elf_link_hash_table *htab; |
2785 | 0 | Elf_Internal_Shdr *symtab_hdr; |
2786 | 0 | struct elf_link_hash_entry **sym_hashes; |
2787 | 0 | bfd_vma *local_got_offsets; |
2788 | 0 | bfd_vma got_base; |
2789 | 0 | asection *sreloc; |
2790 | 0 | Elf_Internal_Rela *rel; |
2791 | 0 | Elf_Internal_Rela *relend; |
2792 | 0 | int num_relocs; |
2793 | 0 | bool is_vxworks_tls; |
2794 | |
|
2795 | 0 | htab = _bfd_sparc_elf_hash_table (info); |
2796 | 0 | BFD_ASSERT (htab != NULL); |
2797 | 0 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
2798 | 0 | sym_hashes = elf_sym_hashes (input_bfd); |
2799 | 0 | local_got_offsets = elf_local_got_offsets (input_bfd); |
2800 | |
|
2801 | 0 | if (elf_hash_table (info)->hgot == NULL) |
2802 | 0 | got_base = 0; |
2803 | 0 | else |
2804 | 0 | got_base = elf_hash_table (info)->hgot->root.u.def.value; |
2805 | |
|
2806 | 0 | sreloc = elf_section_data (input_section)->sreloc; |
2807 | | /* We have to handle relocations in vxworks .tls_vars sections |
2808 | | specially, because the dynamic loader is 'weird'. */ |
2809 | 0 | is_vxworks_tls = (htab->elf.target_os == is_vxworks |
2810 | 0 | && bfd_link_pic (info) |
2811 | 0 | && !strcmp (input_section->output_section->name, |
2812 | 0 | ".tls_vars")); |
2813 | |
|
2814 | 0 | rel = relocs; |
2815 | 0 | if (ABI_64_P (output_bfd)) |
2816 | 0 | num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section)); |
2817 | 0 | else |
2818 | 0 | num_relocs = input_section->reloc_count; |
2819 | 0 | relend = relocs + num_relocs; |
2820 | 0 | for (; rel < relend; rel++) |
2821 | 0 | { |
2822 | 0 | int r_type, tls_type; |
2823 | 0 | reloc_howto_type *howto; |
2824 | 0 | unsigned long r_symndx; |
2825 | 0 | struct elf_link_hash_entry *h; |
2826 | 0 | struct _bfd_sparc_elf_link_hash_entry *eh; |
2827 | 0 | Elf_Internal_Sym *sym; |
2828 | 0 | asection *sec; |
2829 | 0 | bfd_vma relocation, off; |
2830 | 0 | bfd_reloc_status_type r; |
2831 | 0 | bool is_plt = false; |
2832 | 0 | bool unresolved_reloc; |
2833 | 0 | bool resolved_to_zero; |
2834 | 0 | bool relative_reloc; |
2835 | |
|
2836 | 0 | r_type = SPARC_ELF_R_TYPE (rel->r_info); |
2837 | 0 | if (r_type == R_SPARC_GNU_VTINHERIT |
2838 | 0 | || r_type == R_SPARC_GNU_VTENTRY) |
2839 | 0 | continue; |
2840 | | |
2841 | 0 | if (r_type < 0 || r_type >= (int) R_SPARC_max_std) |
2842 | 0 | { |
2843 | 0 | bfd_set_error (bfd_error_bad_value); |
2844 | 0 | return false; |
2845 | 0 | } |
2846 | | |
2847 | 0 | howto = _bfd_sparc_elf_howto_table + r_type; |
2848 | 0 | r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info); |
2849 | 0 | h = NULL; |
2850 | 0 | sym = NULL; |
2851 | 0 | sec = NULL; |
2852 | 0 | unresolved_reloc = false; |
2853 | 0 | if (r_symndx < symtab_hdr->sh_info) |
2854 | 0 | { |
2855 | 0 | sym = local_syms + r_symndx; |
2856 | 0 | sec = local_sections[r_symndx]; |
2857 | 0 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
2858 | |
|
2859 | 0 | if (!bfd_link_relocatable (info) |
2860 | 0 | && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) |
2861 | 0 | { |
2862 | | /* Relocate against local STT_GNU_IFUNC symbol. */ |
2863 | 0 | h = elf_sparc_get_local_sym_hash (htab, input_bfd, |
2864 | 0 | rel, false); |
2865 | 0 | if (h == NULL) |
2866 | 0 | abort (); |
2867 | | |
2868 | | /* Set STT_GNU_IFUNC symbol value. */ |
2869 | 0 | h->root.u.def.value = sym->st_value; |
2870 | 0 | h->root.u.def.section = sec; |
2871 | 0 | } |
2872 | 0 | } |
2873 | 0 | else |
2874 | 0 | { |
2875 | 0 | bool warned, ignored; |
2876 | |
|
2877 | 0 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
2878 | 0 | r_symndx, symtab_hdr, sym_hashes, |
2879 | 0 | h, sec, relocation, |
2880 | 0 | unresolved_reloc, warned, ignored); |
2881 | 0 | if (warned) |
2882 | 0 | { |
2883 | | /* To avoid generating warning messages about truncated |
2884 | | relocations, set the relocation's address to be the same as |
2885 | | the start of this section. */ |
2886 | 0 | if (input_section->output_section != NULL) |
2887 | 0 | relocation = input_section->output_section->vma; |
2888 | 0 | else |
2889 | 0 | relocation = 0; |
2890 | 0 | } |
2891 | 0 | } |
2892 | | |
2893 | 0 | if (sec != NULL && discarded_section (sec)) |
2894 | 0 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
2895 | 0 | rel, 1, relend, howto, 0, contents); |
2896 | |
|
2897 | 0 | if (bfd_link_relocatable (info)) |
2898 | 0 | continue; |
2899 | | |
2900 | 0 | if (h != NULL |
2901 | 0 | && h->type == STT_GNU_IFUNC |
2902 | 0 | && h->def_regular) |
2903 | 0 | { |
2904 | 0 | asection *plt_sec; |
2905 | 0 | const char *name; |
2906 | |
|
2907 | 0 | if ((input_section->flags & SEC_ALLOC) == 0 |
2908 | 0 | || h->plt.offset == (bfd_vma) -1) |
2909 | 0 | { |
2910 | | /* If this is a SHT_NOTE section without SHF_ALLOC, treat |
2911 | | STT_GNU_IFUNC symbol as STT_FUNC. */ |
2912 | 0 | if (elf_section_type (input_section) == SHT_NOTE) |
2913 | 0 | goto skip_ifunc; |
2914 | | |
2915 | | /* Dynamic relocs are not propagated for SEC_DEBUGGING |
2916 | | sections because such sections are not SEC_ALLOC and |
2917 | | thus ld.so will not process them. */ |
2918 | 0 | if ((input_section->flags & SEC_ALLOC) == 0 |
2919 | 0 | && (input_section->flags & SEC_DEBUGGING) != 0) |
2920 | 0 | continue; |
2921 | | |
2922 | 0 | _bfd_error_handler |
2923 | | /* xgettext:c-format */ |
2924 | 0 | (_("%pB(%pA+%#" PRIx64 "): " |
2925 | 0 | "unresolvable %s relocation against symbol `%s'"), |
2926 | 0 | input_bfd, |
2927 | 0 | input_section, |
2928 | 0 | (uint64_t) rel->r_offset, |
2929 | 0 | howto->name, |
2930 | 0 | h->root.root.string); |
2931 | 0 | bfd_set_error (bfd_error_bad_value); |
2932 | 0 | return false; |
2933 | 0 | } |
2934 | | |
2935 | 0 | plt_sec = htab->elf.splt; |
2936 | 0 | if (! plt_sec) |
2937 | 0 | plt_sec =htab->elf.iplt; |
2938 | |
|
2939 | 0 | switch (r_type) |
2940 | 0 | { |
2941 | 0 | case R_SPARC_GOTDATA_OP: |
2942 | 0 | continue; |
2943 | | |
2944 | 0 | case R_SPARC_GOTDATA_OP_HIX22: |
2945 | 0 | case R_SPARC_GOTDATA_OP_LOX10: |
2946 | 0 | r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22 |
2947 | 0 | ? R_SPARC_GOT22 |
2948 | 0 | : R_SPARC_GOT10); |
2949 | 0 | howto = _bfd_sparc_elf_howto_table + r_type; |
2950 | | /* Fall through. */ |
2951 | |
|
2952 | 0 | case R_SPARC_GOT10: |
2953 | 0 | case R_SPARC_GOT13: |
2954 | 0 | case R_SPARC_GOT22: |
2955 | 0 | if (htab->elf.sgot == NULL) |
2956 | 0 | abort (); |
2957 | 0 | off = h->got.offset; |
2958 | 0 | if (off == (bfd_vma) -1) |
2959 | 0 | abort(); |
2960 | 0 | relocation = htab->elf.sgot->output_offset + off - got_base; |
2961 | 0 | goto do_relocation; |
2962 | | |
2963 | 0 | case R_SPARC_WPLT30: |
2964 | 0 | case R_SPARC_WDISP30: |
2965 | 0 | relocation = (plt_sec->output_section->vma |
2966 | 0 | + plt_sec->output_offset + h->plt.offset); |
2967 | 0 | goto do_relocation; |
2968 | | |
2969 | 0 | case R_SPARC_32: |
2970 | 0 | case R_SPARC_64: |
2971 | 0 | if (bfd_link_pic (info) && h->non_got_ref) |
2972 | 0 | { |
2973 | 0 | Elf_Internal_Rela outrel; |
2974 | 0 | bfd_vma offset; |
2975 | |
|
2976 | 0 | offset = _bfd_elf_section_offset (output_bfd, info, |
2977 | 0 | input_section, |
2978 | 0 | rel->r_offset); |
2979 | 0 | if (offset == (bfd_vma) -1 |
2980 | 0 | || offset == (bfd_vma) -2) |
2981 | 0 | abort(); |
2982 | | |
2983 | 0 | outrel.r_offset = (input_section->output_section->vma |
2984 | 0 | + input_section->output_offset |
2985 | 0 | + offset); |
2986 | |
|
2987 | 0 | if (h->dynindx == -1 |
2988 | 0 | || h->forced_local |
2989 | 0 | || bfd_link_executable (info)) |
2990 | 0 | { |
2991 | 0 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, |
2992 | 0 | 0, R_SPARC_IRELATIVE); |
2993 | 0 | outrel.r_addend = relocation + rel->r_addend; |
2994 | 0 | } |
2995 | 0 | else |
2996 | 0 | { |
2997 | 0 | if (h->dynindx == -1) |
2998 | 0 | abort(); |
2999 | 0 | outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type); |
3000 | 0 | outrel.r_addend = rel->r_addend; |
3001 | 0 | } |
3002 | | |
3003 | 0 | sparc_elf_append_rela (output_bfd, sreloc, &outrel); |
3004 | 0 | continue; |
3005 | 0 | } |
3006 | | |
3007 | 0 | relocation = (plt_sec->output_section->vma |
3008 | 0 | + plt_sec->output_offset + h->plt.offset); |
3009 | 0 | goto do_relocation; |
3010 | | |
3011 | 0 | case R_SPARC_HI22: |
3012 | 0 | case R_SPARC_LO10: |
3013 | | /* We should only see such relocs in static links. */ |
3014 | 0 | if (bfd_link_pic (info)) |
3015 | 0 | abort(); |
3016 | 0 | relocation = (plt_sec->output_section->vma |
3017 | 0 | + plt_sec->output_offset + h->plt.offset); |
3018 | 0 | goto do_relocation; |
3019 | | |
3020 | 0 | default: |
3021 | 0 | if (h->root.root.string) |
3022 | 0 | name = h->root.root.string; |
3023 | 0 | else |
3024 | 0 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, |
3025 | 0 | NULL); |
3026 | 0 | _bfd_error_handler |
3027 | | /* xgettext:c-format */ |
3028 | 0 | (_("%pB: relocation %s against STT_GNU_IFUNC " |
3029 | 0 | "symbol `%s' isn't handled by %s"), input_bfd, |
3030 | 0 | _bfd_sparc_elf_howto_table[r_type].name, |
3031 | 0 | name, __func__); |
3032 | 0 | bfd_set_error (bfd_error_bad_value); |
3033 | 0 | return false; |
3034 | 0 | } |
3035 | 0 | } |
3036 | | |
3037 | 0 | skip_ifunc: |
3038 | 0 | eh = (struct _bfd_sparc_elf_link_hash_entry *) h; |
3039 | 0 | resolved_to_zero = eh && UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh); |
3040 | |
|
3041 | 0 | switch (r_type) |
3042 | 0 | { |
3043 | 0 | case R_SPARC_GOTDATA_OP_HIX22: |
3044 | 0 | case R_SPARC_GOTDATA_OP_LOX10: |
3045 | 0 | if (gdop_relative_offset_ok (info, h, relocation)) |
3046 | 0 | { |
3047 | 0 | r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22 |
3048 | 0 | ? R_SPARC_GOTDATA_HIX22 |
3049 | 0 | : R_SPARC_GOTDATA_LOX10); |
3050 | 0 | howto = _bfd_sparc_elf_howto_table + r_type; |
3051 | 0 | } |
3052 | 0 | break; |
3053 | | |
3054 | 0 | case R_SPARC_GOTDATA_OP: |
3055 | 0 | if (gdop_relative_offset_ok (info, h, relocation)) |
3056 | 0 | { |
3057 | 0 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3058 | | |
3059 | | /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */ |
3060 | 0 | relocation = 0x80000000 | (insn & 0x3e07c01f); |
3061 | 0 | bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); |
3062 | | |
3063 | | /* If the symbol is global but not dynamic, an .rela.* slot has |
3064 | | been allocated for it in the GOT so output R_SPARC_NONE here, |
3065 | | if it isn't also subject to another, old-style GOT relocation. |
3066 | | See also the handling of these GOT relocations just below. */ |
3067 | 0 | if (h != NULL |
3068 | 0 | && h->dynindx == -1 |
3069 | 0 | && !h->forced_local |
3070 | 0 | && h->root.type != bfd_link_hash_undefweak |
3071 | 0 | && !eh->has_old_style_got_reloc |
3072 | 0 | && (h->got.offset & 1) == 0 |
3073 | 0 | && bfd_link_pic (info)) |
3074 | 0 | { |
3075 | 0 | asection *s = htab->elf.srelgot; |
3076 | 0 | Elf_Internal_Rela outrel; |
3077 | |
|
3078 | 0 | BFD_ASSERT (s != NULL); |
3079 | |
|
3080 | 0 | memset (&outrel, 0, sizeof outrel); |
3081 | 0 | sparc_elf_append_rela (output_bfd, s, &outrel); |
3082 | 0 | h->got.offset |= 1; |
3083 | 0 | } |
3084 | 0 | } |
3085 | 0 | continue; |
3086 | 0 | } |
3087 | | |
3088 | 0 | switch (r_type) |
3089 | 0 | { |
3090 | 0 | case R_SPARC_GOTDATA_HIX22: |
3091 | 0 | case R_SPARC_GOTDATA_LOX10: |
3092 | 0 | relocation = gdopoff (info, relocation); |
3093 | 0 | break; |
3094 | | |
3095 | 0 | case R_SPARC_GOTDATA_OP_HIX22: |
3096 | 0 | case R_SPARC_GOTDATA_OP_LOX10: |
3097 | 0 | case R_SPARC_GOT10: |
3098 | 0 | case R_SPARC_GOT13: |
3099 | 0 | case R_SPARC_GOT22: |
3100 | | /* Relocation is to the entry for this symbol in the global |
3101 | | offset table. */ |
3102 | 0 | if (htab->elf.sgot == NULL) |
3103 | 0 | abort (); |
3104 | | |
3105 | 0 | relative_reloc = false; |
3106 | 0 | if (h != NULL) |
3107 | 0 | { |
3108 | 0 | bool dyn; |
3109 | |
|
3110 | 0 | off = h->got.offset; |
3111 | 0 | BFD_ASSERT (off != (bfd_vma) -1); |
3112 | 0 | dyn = elf_hash_table (info)->dynamic_sections_created; |
3113 | |
|
3114 | 0 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
3115 | 0 | bfd_link_pic (info), |
3116 | 0 | h) |
3117 | 0 | || (bfd_link_pic (info) |
3118 | 0 | && SYMBOL_REFERENCES_LOCAL (info, h))) |
3119 | 0 | { |
3120 | | /* This is actually a static link, or it is a |
3121 | | -Bsymbolic link and the symbol is defined |
3122 | | locally, or the symbol was forced to be local |
3123 | | because of a version file. We must initialize |
3124 | | this entry in the global offset table. Since the |
3125 | | offset must always be a multiple of 8 for 64-bit |
3126 | | and 4 for 32-bit, we use the least significant bit |
3127 | | to record whether we have initialized it already. |
3128 | | |
3129 | | When doing a dynamic link, we create a .rela.got |
3130 | | relocation entry to initialize the value. This |
3131 | | is done in the finish_dynamic_symbol routine. */ |
3132 | 0 | if ((off & 1) != 0) |
3133 | 0 | off &= ~1; |
3134 | 0 | else |
3135 | 0 | { |
3136 | | /* If this symbol isn't dynamic in PIC mode, treat it |
3137 | | like a local symbol in PIC mode below. */ |
3138 | 0 | if (h->dynindx == -1 |
3139 | 0 | && !h->forced_local |
3140 | 0 | && h->root.type != bfd_link_hash_undefweak |
3141 | 0 | && bfd_link_pic (info)) |
3142 | 0 | relative_reloc = true; |
3143 | 0 | else |
3144 | 0 | SPARC_ELF_PUT_WORD (htab, output_bfd, relocation, |
3145 | 0 | htab->elf.sgot->contents + off); |
3146 | 0 | h->got.offset |= 1; |
3147 | 0 | } |
3148 | 0 | } |
3149 | 0 | else |
3150 | 0 | unresolved_reloc = false; |
3151 | 0 | } |
3152 | 0 | else |
3153 | 0 | { |
3154 | 0 | BFD_ASSERT (local_got_offsets != NULL |
3155 | 0 | && local_got_offsets[r_symndx] != (bfd_vma) -1); |
3156 | |
|
3157 | 0 | off = local_got_offsets[r_symndx]; |
3158 | | |
3159 | | /* The offset must always be a multiple of 8 on 64-bit and |
3160 | | 4 on 32-bit. We use the least significant bit to record |
3161 | | whether we have already processed this entry. */ |
3162 | 0 | if ((off & 1) != 0) |
3163 | 0 | off &= ~1; |
3164 | 0 | else |
3165 | 0 | { |
3166 | | /* For a local symbol in PIC mode, we need to generate a |
3167 | | R_SPARC_RELATIVE reloc for the dynamic linker. */ |
3168 | 0 | if (bfd_link_pic (info)) |
3169 | 0 | relative_reloc = true; |
3170 | 0 | else |
3171 | 0 | SPARC_ELF_PUT_WORD (htab, output_bfd, relocation, |
3172 | 0 | htab->elf.sgot->contents + off); |
3173 | 0 | local_got_offsets[r_symndx] |= 1; |
3174 | 0 | } |
3175 | 0 | } |
3176 | |
|
3177 | 0 | if (relative_reloc) |
3178 | 0 | { |
3179 | 0 | asection *s = htab->elf.srelgot; |
3180 | 0 | Elf_Internal_Rela outrel; |
3181 | |
|
3182 | 0 | BFD_ASSERT (s != NULL); |
3183 | |
|
3184 | 0 | outrel.r_offset = (htab->elf.sgot->output_section->vma |
3185 | 0 | + htab->elf.sgot->output_offset |
3186 | 0 | + off); |
3187 | 0 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, |
3188 | 0 | 0, R_SPARC_RELATIVE); |
3189 | 0 | outrel.r_addend = relocation; |
3190 | 0 | sparc_elf_append_rela (output_bfd, s, &outrel); |
3191 | | /* Versions of glibc ld.so at least up to 2.26 wrongly |
3192 | | add the section contents to the value calculated for |
3193 | | a RELATIVE reloc. Zero the contents to work around |
3194 | | this bug. */ |
3195 | 0 | relocation = 0; |
3196 | 0 | SPARC_ELF_PUT_WORD (htab, output_bfd, relocation, |
3197 | 0 | htab->elf.sgot->contents + off); |
3198 | 0 | } |
3199 | |
|
3200 | 0 | relocation = htab->elf.sgot->output_offset + off - got_base; |
3201 | 0 | break; |
3202 | | |
3203 | 0 | case R_SPARC_PLT32: |
3204 | 0 | case R_SPARC_PLT64: |
3205 | 0 | if (h == NULL || h->plt.offset == (bfd_vma) -1) |
3206 | 0 | { |
3207 | 0 | r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64; |
3208 | 0 | goto r_sparc_plt32; |
3209 | 0 | } |
3210 | | /* Fall through. */ |
3211 | | |
3212 | 0 | case R_SPARC_WPLT30: |
3213 | 0 | case R_SPARC_HIPLT22: |
3214 | 0 | case R_SPARC_LOPLT10: |
3215 | 0 | case R_SPARC_PCPLT32: |
3216 | 0 | case R_SPARC_PCPLT22: |
3217 | 0 | case R_SPARC_PCPLT10: |
3218 | 0 | r_sparc_wplt30: |
3219 | | /* Relocation is to the entry for this symbol in the |
3220 | | procedure linkage table. */ |
3221 | |
|
3222 | 0 | if (! ABI_64_P (output_bfd)) |
3223 | 0 | { |
3224 | | /* The Solaris native assembler will generate a WPLT30 reloc |
3225 | | for a local symbol if you assemble a call from one |
3226 | | section to another when using -K pic. We treat it as |
3227 | | WDISP30. */ |
3228 | 0 | if (h == NULL) |
3229 | 0 | break; |
3230 | 0 | } |
3231 | | /* PR 7027: We need similar behaviour for 64-bit binaries. */ |
3232 | 0 | else if (r_type == R_SPARC_WPLT30 && h == NULL) |
3233 | 0 | break; |
3234 | 0 | else |
3235 | 0 | { |
3236 | 0 | BFD_ASSERT (h != NULL); |
3237 | 0 | } |
3238 | | |
3239 | 0 | if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL) |
3240 | 0 | { |
3241 | | /* We didn't make a PLT entry for this symbol. This |
3242 | | happens when statically linking PIC code, or when |
3243 | | using -Bsymbolic. */ |
3244 | 0 | break; |
3245 | 0 | } |
3246 | | |
3247 | 0 | relocation = (htab->elf.splt->output_section->vma |
3248 | 0 | + htab->elf.splt->output_offset |
3249 | 0 | + h->plt.offset); |
3250 | 0 | unresolved_reloc = false; |
3251 | 0 | if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64) |
3252 | 0 | { |
3253 | 0 | r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64; |
3254 | 0 | is_plt = true; |
3255 | 0 | goto r_sparc_plt32; |
3256 | 0 | } |
3257 | 0 | break; |
3258 | | |
3259 | 0 | case R_SPARC_PC10: |
3260 | 0 | case R_SPARC_PC22: |
3261 | 0 | case R_SPARC_PC_HH22: |
3262 | 0 | case R_SPARC_PC_HM10: |
3263 | 0 | case R_SPARC_PC_LM22: |
3264 | 0 | if (h != NULL && h == htab->elf.hgot) |
3265 | 0 | break; |
3266 | | /* Fall through. */ |
3267 | 0 | case R_SPARC_DISP8: |
3268 | 0 | case R_SPARC_DISP16: |
3269 | 0 | case R_SPARC_DISP32: |
3270 | 0 | case R_SPARC_DISP64: |
3271 | 0 | case R_SPARC_WDISP30: |
3272 | 0 | case R_SPARC_WDISP22: |
3273 | 0 | case R_SPARC_WDISP19: |
3274 | 0 | case R_SPARC_WDISP16: |
3275 | 0 | case R_SPARC_WDISP10: |
3276 | 0 | case R_SPARC_8: |
3277 | 0 | case R_SPARC_16: |
3278 | 0 | case R_SPARC_32: |
3279 | 0 | case R_SPARC_HI22: |
3280 | 0 | case R_SPARC_22: |
3281 | 0 | case R_SPARC_13: |
3282 | 0 | case R_SPARC_LO10: |
3283 | 0 | case R_SPARC_UA16: |
3284 | 0 | case R_SPARC_UA32: |
3285 | 0 | case R_SPARC_10: |
3286 | 0 | case R_SPARC_11: |
3287 | 0 | case R_SPARC_64: |
3288 | 0 | case R_SPARC_OLO10: |
3289 | 0 | case R_SPARC_HH22: |
3290 | 0 | case R_SPARC_HM10: |
3291 | 0 | case R_SPARC_LM22: |
3292 | 0 | case R_SPARC_7: |
3293 | 0 | case R_SPARC_5: |
3294 | 0 | case R_SPARC_6: |
3295 | 0 | case R_SPARC_HIX22: |
3296 | 0 | case R_SPARC_LOX10: |
3297 | 0 | case R_SPARC_H44: |
3298 | 0 | case R_SPARC_M44: |
3299 | 0 | case R_SPARC_L44: |
3300 | 0 | case R_SPARC_H34: |
3301 | 0 | case R_SPARC_UA64: |
3302 | 0 | r_sparc_plt32: |
3303 | 0 | if ((input_section->flags & SEC_ALLOC) == 0 || is_vxworks_tls) |
3304 | 0 | break; |
3305 | | |
3306 | | /* Copy dynamic function pointer relocations. Don't generate |
3307 | | dynamic relocations against resolved undefined weak symbols |
3308 | | in PIE. */ |
3309 | 0 | if ((bfd_link_pic (info) |
3310 | 0 | && (h == NULL |
3311 | 0 | || !(h->root.type == bfd_link_hash_undefweak |
3312 | 0 | && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT |
3313 | 0 | || resolved_to_zero))) |
3314 | 0 | && (! howto->pc_relative |
3315 | 0 | || !SYMBOL_CALLS_LOCAL (info, h))) |
3316 | 0 | || (!bfd_link_pic (info) |
3317 | 0 | && h != NULL |
3318 | 0 | && h->dynindx != -1 |
3319 | 0 | && !h->non_got_ref |
3320 | 0 | && ((h->def_dynamic |
3321 | 0 | && !h->def_regular) |
3322 | 0 | || (h->root.type == bfd_link_hash_undefweak |
3323 | 0 | && !resolved_to_zero) |
3324 | 0 | || h->root.type == bfd_link_hash_undefined))) |
3325 | 0 | { |
3326 | 0 | Elf_Internal_Rela outrel; |
3327 | 0 | bool skip, relocate = false; |
3328 | | |
3329 | | /* When generating a shared object, these relocations |
3330 | | are copied into the output file to be resolved at run |
3331 | | time. */ |
3332 | |
|
3333 | 0 | BFD_ASSERT (sreloc != NULL); |
3334 | |
|
3335 | 0 | skip = false; |
3336 | |
|
3337 | 0 | outrel.r_offset = |
3338 | 0 | _bfd_elf_section_offset (output_bfd, info, input_section, |
3339 | 0 | rel->r_offset); |
3340 | 0 | if (outrel.r_offset == (bfd_vma) -1) |
3341 | 0 | skip = true; |
3342 | 0 | else if (outrel.r_offset == (bfd_vma) -2) |
3343 | 0 | skip = true, relocate = true; |
3344 | 0 | outrel.r_offset += (input_section->output_section->vma |
3345 | 0 | + input_section->output_offset); |
3346 | | |
3347 | | /* Optimize unaligned reloc usage now that we know where |
3348 | | it finally resides. */ |
3349 | 0 | switch (r_type) |
3350 | 0 | { |
3351 | 0 | case R_SPARC_16: |
3352 | 0 | if (outrel.r_offset & 1) |
3353 | 0 | r_type = R_SPARC_UA16; |
3354 | 0 | break; |
3355 | 0 | case R_SPARC_UA16: |
3356 | 0 | if (!(outrel.r_offset & 1)) |
3357 | 0 | r_type = R_SPARC_16; |
3358 | 0 | break; |
3359 | 0 | case R_SPARC_32: |
3360 | 0 | if (outrel.r_offset & 3) |
3361 | 0 | r_type = R_SPARC_UA32; |
3362 | 0 | break; |
3363 | 0 | case R_SPARC_UA32: |
3364 | 0 | if (!(outrel.r_offset & 3)) |
3365 | 0 | r_type = R_SPARC_32; |
3366 | 0 | break; |
3367 | 0 | case R_SPARC_64: |
3368 | 0 | if (outrel.r_offset & 7) |
3369 | 0 | r_type = R_SPARC_UA64; |
3370 | 0 | break; |
3371 | 0 | case R_SPARC_UA64: |
3372 | 0 | if (!(outrel.r_offset & 7)) |
3373 | 0 | r_type = R_SPARC_64; |
3374 | 0 | break; |
3375 | 0 | case R_SPARC_DISP8: |
3376 | 0 | case R_SPARC_DISP16: |
3377 | 0 | case R_SPARC_DISP32: |
3378 | 0 | case R_SPARC_DISP64: |
3379 | | /* If the symbol is not dynamic, we should not keep |
3380 | | a dynamic relocation. But an .rela.* slot has been |
3381 | | allocated for it, output R_SPARC_NONE. |
3382 | | FIXME: Add code tracking needed dynamic relocs as |
3383 | | e.g. i386 has. */ |
3384 | 0 | if (h->dynindx == -1) |
3385 | 0 | skip = true, relocate = true; |
3386 | 0 | break; |
3387 | 0 | } |
3388 | | |
3389 | 0 | if (skip) |
3390 | 0 | memset (&outrel, 0, sizeof outrel); |
3391 | | /* h->dynindx may be -1 if the symbol was marked to |
3392 | | become local. */ |
3393 | 0 | else if (h != NULL |
3394 | 0 | && h->dynindx != -1 |
3395 | 0 | && (_bfd_sparc_elf_howto_table[r_type].pc_relative |
3396 | 0 | || !bfd_link_pic (info) |
3397 | 0 | || !SYMBOLIC_BIND (info, h) |
3398 | 0 | || !h->def_regular)) |
3399 | 0 | { |
3400 | 0 | outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type); |
3401 | 0 | outrel.r_addend = rel->r_addend; |
3402 | 0 | } |
3403 | 0 | else |
3404 | 0 | { |
3405 | 0 | if ( (!ABI_64_P (output_bfd) && r_type == R_SPARC_32) |
3406 | 0 | || (ABI_64_P (output_bfd) && r_type == R_SPARC_64)) |
3407 | 0 | { |
3408 | 0 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, |
3409 | 0 | 0, R_SPARC_RELATIVE); |
3410 | 0 | outrel.r_addend = relocation + rel->r_addend; |
3411 | 0 | } |
3412 | 0 | else |
3413 | 0 | { |
3414 | 0 | long indx; |
3415 | |
|
3416 | 0 | outrel.r_addend = relocation + rel->r_addend; |
3417 | |
|
3418 | 0 | if (is_plt) |
3419 | 0 | sec = htab->elf.splt; |
3420 | |
|
3421 | 0 | if (bfd_is_abs_section (sec)) |
3422 | 0 | indx = 0; |
3423 | 0 | else if (sec == NULL || sec->owner == NULL) |
3424 | 0 | { |
3425 | 0 | bfd_set_error (bfd_error_bad_value); |
3426 | 0 | return false; |
3427 | 0 | } |
3428 | 0 | else |
3429 | 0 | { |
3430 | 0 | asection *osec; |
3431 | | |
3432 | | /* We are turning this relocation into one |
3433 | | against a section symbol. It would be |
3434 | | proper to subtract the symbol's value, |
3435 | | osec->vma, from the emitted reloc addend, |
3436 | | but ld.so expects buggy relocs. */ |
3437 | 0 | osec = sec->output_section; |
3438 | 0 | indx = elf_section_data (osec)->dynindx; |
3439 | |
|
3440 | 0 | if (indx == 0) |
3441 | 0 | { |
3442 | 0 | osec = htab->elf.text_index_section; |
3443 | 0 | indx = elf_section_data (osec)->dynindx; |
3444 | 0 | } |
3445 | | |
3446 | | /* FIXME: we really should be able to link non-pic |
3447 | | shared libraries. */ |
3448 | 0 | if (indx == 0) |
3449 | 0 | { |
3450 | 0 | BFD_FAIL (); |
3451 | 0 | _bfd_error_handler |
3452 | 0 | (_("%pB: probably compiled without -fPIC?"), |
3453 | 0 | input_bfd); |
3454 | 0 | bfd_set_error (bfd_error_bad_value); |
3455 | 0 | return false; |
3456 | 0 | } |
3457 | 0 | } |
3458 | | |
3459 | 0 | outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx, |
3460 | 0 | r_type); |
3461 | 0 | } |
3462 | 0 | } |
3463 | | |
3464 | 0 | sparc_elf_append_rela (output_bfd, sreloc, &outrel); |
3465 | | |
3466 | | /* This reloc will be computed at runtime, so there's no |
3467 | | need to do anything now. */ |
3468 | 0 | if (! relocate) |
3469 | 0 | continue; |
3470 | 0 | } |
3471 | 0 | break; |
3472 | | |
3473 | 0 | case R_SPARC_TLS_GD_HI22: |
3474 | 0 | case R_SPARC_TLS_GD_LO10: |
3475 | 0 | case R_SPARC_TLS_IE_HI22: |
3476 | 0 | case R_SPARC_TLS_IE_LO10: |
3477 | 0 | r_type = sparc_elf_tls_transition (info, input_bfd, r_type, |
3478 | 0 | h == NULL || h->dynindx == -1); |
3479 | 0 | if (r_type == R_SPARC_REV32) |
3480 | 0 | break; |
3481 | 0 | if (h != NULL) |
3482 | 0 | tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type; |
3483 | 0 | else if (local_got_offsets) |
3484 | 0 | tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx]; |
3485 | 0 | else |
3486 | 0 | tls_type = GOT_UNKNOWN; |
3487 | 0 | if (tls_type == GOT_TLS_IE) |
3488 | 0 | switch (r_type) |
3489 | 0 | { |
3490 | 0 | case R_SPARC_TLS_GD_HI22: |
3491 | 0 | r_type = R_SPARC_TLS_IE_HI22; |
3492 | 0 | break; |
3493 | 0 | case R_SPARC_TLS_GD_LO10: |
3494 | 0 | r_type = R_SPARC_TLS_IE_LO10; |
3495 | 0 | break; |
3496 | 0 | } |
3497 | | |
3498 | 0 | if (r_type == R_SPARC_TLS_LE_HIX22) |
3499 | 0 | { |
3500 | 0 | relocation = tpoff (info, relocation); |
3501 | 0 | break; |
3502 | 0 | } |
3503 | 0 | if (r_type == R_SPARC_TLS_LE_LOX10) |
3504 | 0 | { |
3505 | | /* Change add into xor. */ |
3506 | 0 | relocation = tpoff (info, relocation); |
3507 | 0 | bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd, |
3508 | 0 | contents + rel->r_offset) |
3509 | 0 | | 0x80182000), contents + rel->r_offset); |
3510 | 0 | break; |
3511 | 0 | } |
3512 | | |
3513 | 0 | if (h != NULL) |
3514 | 0 | { |
3515 | 0 | off = h->got.offset; |
3516 | 0 | h->got.offset |= 1; |
3517 | 0 | } |
3518 | 0 | else |
3519 | 0 | { |
3520 | 0 | BFD_ASSERT (local_got_offsets != NULL); |
3521 | 0 | off = local_got_offsets[r_symndx]; |
3522 | 0 | local_got_offsets[r_symndx] |= 1; |
3523 | 0 | } |
3524 | |
|
3525 | 0 | r_sparc_tlsldm: |
3526 | 0 | if (htab->elf.sgot == NULL) |
3527 | 0 | abort (); |
3528 | | |
3529 | 0 | if ((off & 1) != 0) |
3530 | 0 | off &= ~1; |
3531 | 0 | else |
3532 | 0 | { |
3533 | 0 | Elf_Internal_Rela outrel; |
3534 | 0 | int dr_type, indx; |
3535 | |
|
3536 | 0 | if (htab->elf.srelgot == NULL) |
3537 | 0 | abort (); |
3538 | | |
3539 | 0 | SPARC_ELF_PUT_WORD (htab, output_bfd, 0, |
3540 | 0 | htab->elf.sgot->contents + off); |
3541 | 0 | outrel.r_offset = (htab->elf.sgot->output_section->vma |
3542 | 0 | + htab->elf.sgot->output_offset + off); |
3543 | 0 | indx = h && h->dynindx != -1 ? h->dynindx : 0; |
3544 | 0 | if (r_type == R_SPARC_TLS_IE_HI22 |
3545 | 0 | || r_type == R_SPARC_TLS_IE_LO10) |
3546 | 0 | dr_type = SPARC_ELF_TPOFF_RELOC (htab); |
3547 | 0 | else |
3548 | 0 | dr_type = SPARC_ELF_DTPMOD_RELOC (htab); |
3549 | 0 | if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0) |
3550 | 0 | outrel.r_addend = relocation - dtpoff_base (info); |
3551 | 0 | else |
3552 | 0 | outrel.r_addend = 0; |
3553 | 0 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type); |
3554 | 0 | sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel); |
3555 | |
|
3556 | 0 | if (r_type == R_SPARC_TLS_GD_HI22 |
3557 | 0 | || r_type == R_SPARC_TLS_GD_LO10) |
3558 | 0 | { |
3559 | 0 | if (indx == 0) |
3560 | 0 | { |
3561 | 0 | BFD_ASSERT (! unresolved_reloc); |
3562 | 0 | SPARC_ELF_PUT_WORD (htab, output_bfd, |
3563 | 0 | relocation - dtpoff_base (info), |
3564 | 0 | (htab->elf.sgot->contents + off |
3565 | 0 | + SPARC_ELF_WORD_BYTES (htab))); |
3566 | 0 | } |
3567 | 0 | else |
3568 | 0 | { |
3569 | 0 | SPARC_ELF_PUT_WORD (htab, output_bfd, 0, |
3570 | 0 | (htab->elf.sgot->contents + off |
3571 | 0 | + SPARC_ELF_WORD_BYTES (htab))); |
3572 | 0 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, |
3573 | 0 | SPARC_ELF_DTPOFF_RELOC (htab)); |
3574 | 0 | outrel.r_offset += SPARC_ELF_WORD_BYTES (htab); |
3575 | 0 | sparc_elf_append_rela (output_bfd, htab->elf.srelgot, |
3576 | 0 | &outrel); |
3577 | 0 | } |
3578 | 0 | } |
3579 | 0 | else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab)) |
3580 | 0 | { |
3581 | 0 | SPARC_ELF_PUT_WORD (htab, output_bfd, 0, |
3582 | 0 | (htab->elf.sgot->contents + off |
3583 | 0 | + SPARC_ELF_WORD_BYTES (htab))); |
3584 | 0 | } |
3585 | 0 | } |
3586 | | |
3587 | 0 | if (off >= (bfd_vma) -2) |
3588 | 0 | abort (); |
3589 | | |
3590 | 0 | relocation = htab->elf.sgot->output_offset + off - got_base; |
3591 | 0 | unresolved_reloc = false; |
3592 | 0 | howto = _bfd_sparc_elf_howto_table + r_type; |
3593 | 0 | break; |
3594 | | |
3595 | 0 | case R_SPARC_TLS_LDM_HI22: |
3596 | 0 | case R_SPARC_TLS_LDM_LO10: |
3597 | | /* LD -> LE */ |
3598 | 0 | if (bfd_link_executable (info)) |
3599 | 0 | { |
3600 | 0 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); |
3601 | 0 | continue; |
3602 | 0 | } |
3603 | 0 | off = htab->tls_ldm_got.offset; |
3604 | 0 | htab->tls_ldm_got.offset |= 1; |
3605 | 0 | goto r_sparc_tlsldm; |
3606 | | |
3607 | 0 | case R_SPARC_TLS_LDO_HIX22: |
3608 | 0 | case R_SPARC_TLS_LDO_LOX10: |
3609 | | /* LD -> LE */ |
3610 | 0 | if (bfd_link_executable (info)) |
3611 | 0 | { |
3612 | 0 | if (r_type == R_SPARC_TLS_LDO_HIX22) |
3613 | 0 | r_type = R_SPARC_TLS_LE_HIX22; |
3614 | 0 | else |
3615 | 0 | r_type = R_SPARC_TLS_LE_LOX10; |
3616 | 0 | } |
3617 | 0 | else |
3618 | 0 | { |
3619 | 0 | relocation -= dtpoff_base (info); |
3620 | 0 | break; |
3621 | 0 | } |
3622 | | /* Fall through. */ |
3623 | | |
3624 | 0 | case R_SPARC_TLS_LE_HIX22: |
3625 | 0 | case R_SPARC_TLS_LE_LOX10: |
3626 | 0 | if (!bfd_link_executable (info)) |
3627 | 0 | { |
3628 | 0 | Elf_Internal_Rela outrel; |
3629 | 0 | bfd_vma offset |
3630 | 0 | = _bfd_elf_section_offset (output_bfd, info, input_section, |
3631 | 0 | rel->r_offset); |
3632 | 0 | if (offset == (bfd_vma) -1 || offset == (bfd_vma) -2) |
3633 | 0 | memset (&outrel, 0, sizeof outrel); |
3634 | 0 | else |
3635 | 0 | { |
3636 | 0 | outrel.r_offset = offset |
3637 | 0 | + input_section->output_section->vma |
3638 | 0 | + input_section->output_offset; |
3639 | 0 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type); |
3640 | 0 | outrel.r_addend |
3641 | 0 | = relocation - dtpoff_base (info) + rel->r_addend; |
3642 | 0 | } |
3643 | |
|
3644 | 0 | BFD_ASSERT (sreloc != NULL); |
3645 | 0 | sparc_elf_append_rela (output_bfd, sreloc, &outrel); |
3646 | 0 | continue; |
3647 | 0 | } |
3648 | 0 | relocation = tpoff (info, relocation); |
3649 | 0 | break; |
3650 | | |
3651 | 0 | case R_SPARC_TLS_LDM_CALL: |
3652 | | /* LD -> LE */ |
3653 | 0 | if (bfd_link_executable (info)) |
3654 | 0 | { |
3655 | | /* mov %g0, %o0 */ |
3656 | 0 | bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset); |
3657 | 0 | continue; |
3658 | 0 | } |
3659 | | /* Fall through */ |
3660 | | |
3661 | 0 | case R_SPARC_TLS_GD_CALL: |
3662 | 0 | if (h != NULL) |
3663 | 0 | tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type; |
3664 | 0 | else if (local_got_offsets) |
3665 | 0 | tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx]; |
3666 | 0 | else |
3667 | 0 | tls_type = GOT_UNKNOWN; |
3668 | | /* GD -> IE or LE */ |
3669 | 0 | if (bfd_link_executable (info) |
3670 | 0 | || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE)) |
3671 | 0 | { |
3672 | 0 | Elf_Internal_Rela *rel2; |
3673 | 0 | bfd_vma insn; |
3674 | | |
3675 | | /* GD -> LE */ |
3676 | 0 | if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1)) |
3677 | 0 | { |
3678 | 0 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); |
3679 | 0 | continue; |
3680 | 0 | } |
3681 | | |
3682 | | /* GD -> IE */ |
3683 | 0 | if (rel + 1 < relend |
3684 | 0 | && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD |
3685 | 0 | && rel[1].r_offset == rel->r_offset + 4 |
3686 | 0 | && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx |
3687 | 0 | && (((insn = bfd_get_32 (input_bfd, |
3688 | 0 | contents + rel[1].r_offset)) |
3689 | 0 | >> 25) & 0x1f) == 8) |
3690 | 0 | { |
3691 | | /* We have |
3692 | | call __tls_get_addr, %tgd_call(foo) |
3693 | | add %reg1, %reg2, %o0, %tgd_add(foo) |
3694 | | and change it into IE: |
3695 | | {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo) |
3696 | | add %g7, %o0, %o0, %tie_add(foo). |
3697 | | add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2, |
3698 | | ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2, |
3699 | | ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */ |
3700 | 0 | bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000), |
3701 | 0 | contents + rel->r_offset); |
3702 | 0 | bfd_put_32 (output_bfd, 0x9001c008, |
3703 | 0 | contents + rel->r_offset + 4); |
3704 | 0 | rel++; |
3705 | 0 | continue; |
3706 | 0 | } |
3707 | | |
3708 | | /* We cannot just overwrite the delay slot instruction, |
3709 | | as it might be what puts the %o0 argument to |
3710 | | __tls_get_addr into place. So we have to transpose |
3711 | | the delay slot with the add we patch in. */ |
3712 | 0 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); |
3713 | 0 | bfd_put_32 (output_bfd, insn, |
3714 | 0 | contents + rel->r_offset); |
3715 | 0 | bfd_put_32 (output_bfd, 0x9001c008, |
3716 | 0 | contents + rel->r_offset + 4); |
3717 | |
|
3718 | 0 | rel2 = rel; |
3719 | 0 | while ((rel2 = sparc_elf_find_reloc_at_ofs (rel2 + 1, relend, |
3720 | 0 | rel->r_offset + 4)) |
3721 | 0 | != NULL) |
3722 | 0 | { |
3723 | | /* If the instruction we moved has a relocation attached to |
3724 | | it, adjust the offset so that it will apply to the correct |
3725 | | instruction. */ |
3726 | 0 | rel2->r_offset -= 4; |
3727 | 0 | } |
3728 | 0 | continue; |
3729 | 0 | } |
3730 | | |
3731 | 0 | h = (struct elf_link_hash_entry *) |
3732 | 0 | bfd_link_hash_lookup (info->hash, "__tls_get_addr", false, |
3733 | 0 | false, true); |
3734 | 0 | BFD_ASSERT (h != NULL); |
3735 | 0 | r_type = R_SPARC_WPLT30; |
3736 | 0 | howto = _bfd_sparc_elf_howto_table + r_type; |
3737 | 0 | goto r_sparc_wplt30; |
3738 | | |
3739 | 0 | case R_SPARC_TLS_GD_ADD: |
3740 | 0 | if (h != NULL) |
3741 | 0 | tls_type = _bfd_sparc_elf_hash_entry (h)->tls_type; |
3742 | 0 | else if (local_got_offsets) |
3743 | 0 | tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx]; |
3744 | 0 | else |
3745 | 0 | tls_type = GOT_UNKNOWN; |
3746 | | /* GD -> IE or LE */ |
3747 | 0 | if (bfd_link_executable (info) || tls_type == GOT_TLS_IE) |
3748 | 0 | { |
3749 | | /* add %reg1, %reg2, %reg3, %tgd_add(foo) |
3750 | | changed into IE: |
3751 | | {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo) |
3752 | | or LE: |
3753 | | add %g7, %reg2, %reg3. */ |
3754 | 0 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3755 | 0 | if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1)) |
3756 | 0 | relocation = (insn & ~0x7c000) | 0x1c000; |
3757 | 0 | else |
3758 | 0 | relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000); |
3759 | 0 | bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); |
3760 | 0 | } |
3761 | 0 | continue; |
3762 | | |
3763 | 0 | case R_SPARC_TLS_LDM_ADD: |
3764 | | /* LD -> LE */ |
3765 | 0 | if (bfd_link_executable (info)) |
3766 | 0 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); |
3767 | 0 | continue; |
3768 | | |
3769 | 0 | case R_SPARC_TLS_LDO_ADD: |
3770 | | /* LD -> LE */ |
3771 | 0 | if (bfd_link_executable (info)) |
3772 | 0 | { |
3773 | | /* Change rs1 into %g7. */ |
3774 | 0 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3775 | 0 | insn = (insn & ~0x7c000) | 0x1c000; |
3776 | 0 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
3777 | 0 | } |
3778 | 0 | continue; |
3779 | | |
3780 | 0 | case R_SPARC_TLS_IE_LD: |
3781 | 0 | case R_SPARC_TLS_IE_LDX: |
3782 | | /* IE -> LE */ |
3783 | 0 | if (bfd_link_executable (info) && (h == NULL || h->dynindx == -1)) |
3784 | 0 | { |
3785 | 0 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3786 | 0 | int rs2 = insn & 0x1f; |
3787 | 0 | int rd = (insn >> 25) & 0x1f; |
3788 | |
|
3789 | 0 | if (rs2 == rd) |
3790 | 0 | relocation = SPARC_NOP; |
3791 | 0 | else |
3792 | 0 | relocation = 0x80100000 | (insn & 0x3e00001f); |
3793 | 0 | bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); |
3794 | 0 | } |
3795 | 0 | continue; |
3796 | | |
3797 | 0 | case R_SPARC_TLS_IE_ADD: |
3798 | | /* Totally useless relocation. */ |
3799 | 0 | continue; |
3800 | | |
3801 | 0 | case R_SPARC_TLS_DTPOFF32: |
3802 | 0 | case R_SPARC_TLS_DTPOFF64: |
3803 | 0 | relocation -= dtpoff_base (info); |
3804 | 0 | break; |
3805 | | |
3806 | 0 | default: |
3807 | 0 | break; |
3808 | 0 | } |
3809 | | |
3810 | | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
3811 | | because such sections are not SEC_ALLOC and thus ld.so will |
3812 | | not process them. */ |
3813 | 0 | if (unresolved_reloc |
3814 | 0 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
3815 | 0 | && h->def_dynamic) |
3816 | 0 | && _bfd_elf_section_offset (output_bfd, info, input_section, |
3817 | 0 | rel->r_offset) != (bfd_vma) -1) |
3818 | 0 | _bfd_error_handler |
3819 | | /* xgettext:c-format */ |
3820 | 0 | (_("%pB(%pA+%#" PRIx64 "): " |
3821 | 0 | "unresolvable %s relocation against symbol `%s'"), |
3822 | 0 | input_bfd, |
3823 | 0 | input_section, |
3824 | 0 | (uint64_t) rel->r_offset, |
3825 | 0 | howto->name, |
3826 | 0 | h->root.root.string); |
3827 | |
|
3828 | 0 | r = bfd_reloc_continue; |
3829 | 0 | if (r_type == R_SPARC_OLO10) |
3830 | 0 | { |
3831 | 0 | bfd_vma x; |
3832 | |
|
3833 | 0 | if (! ABI_64_P (output_bfd)) |
3834 | 0 | abort (); |
3835 | | |
3836 | 0 | relocation += rel->r_addend; |
3837 | 0 | relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info); |
3838 | |
|
3839 | 0 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3840 | 0 | x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff); |
3841 | 0 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
3842 | |
|
3843 | 0 | r = bfd_check_overflow (howto->complain_on_overflow, |
3844 | 0 | howto->bitsize, howto->rightshift, |
3845 | 0 | bfd_arch_bits_per_address (input_bfd), |
3846 | 0 | relocation); |
3847 | 0 | } |
3848 | 0 | else if (r_type == R_SPARC_WDISP16) |
3849 | 0 | { |
3850 | 0 | bfd_vma x; |
3851 | |
|
3852 | 0 | relocation += rel->r_addend; |
3853 | 0 | relocation -= (input_section->output_section->vma |
3854 | 0 | + input_section->output_offset); |
3855 | 0 | relocation -= rel->r_offset; |
3856 | |
|
3857 | 0 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3858 | 0 | x |= ((((relocation >> 2) & 0xc000) << 6) |
3859 | 0 | | ((relocation >> 2) & 0x3fff)); |
3860 | 0 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
3861 | |
|
3862 | 0 | r = bfd_check_overflow (howto->complain_on_overflow, |
3863 | 0 | howto->bitsize, howto->rightshift, |
3864 | 0 | bfd_arch_bits_per_address (input_bfd), |
3865 | 0 | relocation); |
3866 | 0 | } |
3867 | 0 | else if (r_type == R_SPARC_WDISP10) |
3868 | 0 | { |
3869 | 0 | bfd_vma x; |
3870 | |
|
3871 | 0 | relocation += rel->r_addend; |
3872 | 0 | relocation -= (input_section->output_section->vma |
3873 | 0 | + input_section->output_offset); |
3874 | 0 | relocation -= rel->r_offset; |
3875 | |
|
3876 | 0 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3877 | 0 | x |= ((((relocation >> 2) & 0x300) << 11) |
3878 | 0 | | (((relocation >> 2) & 0xff) << 5)); |
3879 | 0 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
3880 | |
|
3881 | 0 | r = bfd_check_overflow (howto->complain_on_overflow, |
3882 | 0 | howto->bitsize, howto->rightshift, |
3883 | 0 | bfd_arch_bits_per_address (input_bfd), |
3884 | 0 | relocation); |
3885 | 0 | } |
3886 | 0 | else if (r_type == R_SPARC_REV32) |
3887 | 0 | { |
3888 | 0 | bfd_vma x; |
3889 | |
|
3890 | 0 | relocation = relocation + rel->r_addend; |
3891 | |
|
3892 | 0 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3893 | 0 | x = x + relocation; |
3894 | 0 | bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset); |
3895 | 0 | r = bfd_reloc_ok; |
3896 | 0 | } |
3897 | 0 | else if (r_type == R_SPARC_TLS_LDO_HIX22 |
3898 | 0 | || r_type == R_SPARC_TLS_LE_HIX22) |
3899 | 0 | { |
3900 | 0 | bfd_vma x; |
3901 | |
|
3902 | 0 | relocation += rel->r_addend; |
3903 | 0 | if (r_type == R_SPARC_TLS_LE_HIX22) |
3904 | 0 | relocation ^= MINUS_ONE; |
3905 | |
|
3906 | 0 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3907 | 0 | x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); |
3908 | 0 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
3909 | 0 | r = bfd_reloc_ok; |
3910 | 0 | } |
3911 | 0 | else if (r_type == R_SPARC_TLS_LDO_LOX10 |
3912 | 0 | || r_type == R_SPARC_TLS_LE_LOX10) |
3913 | 0 | { |
3914 | 0 | bfd_vma x; |
3915 | |
|
3916 | 0 | relocation += rel->r_addend; |
3917 | 0 | relocation &= 0x3ff; |
3918 | 0 | if (r_type == R_SPARC_TLS_LE_LOX10) |
3919 | 0 | relocation |= 0x1c00; |
3920 | |
|
3921 | 0 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3922 | 0 | x = (x & ~(bfd_vma) 0x1fff) | relocation; |
3923 | 0 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
3924 | |
|
3925 | 0 | r = bfd_reloc_ok; |
3926 | 0 | } |
3927 | 0 | else if (r_type == R_SPARC_HIX22 |
3928 | 0 | || r_type == R_SPARC_GOTDATA_HIX22 |
3929 | 0 | || r_type == R_SPARC_GOTDATA_OP_HIX22) |
3930 | 0 | { |
3931 | 0 | bfd_vma x; |
3932 | |
|
3933 | 0 | relocation += rel->r_addend; |
3934 | 0 | if (r_type == R_SPARC_HIX22 |
3935 | 0 | || (bfd_signed_vma) relocation < 0) |
3936 | 0 | relocation = relocation ^ MINUS_ONE; |
3937 | |
|
3938 | 0 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3939 | 0 | x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); |
3940 | 0 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
3941 | |
|
3942 | 0 | r = bfd_check_overflow (howto->complain_on_overflow, |
3943 | 0 | howto->bitsize, howto->rightshift, |
3944 | 0 | bfd_arch_bits_per_address (input_bfd), |
3945 | 0 | relocation); |
3946 | 0 | } |
3947 | 0 | else if (r_type == R_SPARC_LOX10 |
3948 | 0 | || r_type == R_SPARC_GOTDATA_LOX10 |
3949 | 0 | || r_type == R_SPARC_GOTDATA_OP_LOX10) |
3950 | 0 | { |
3951 | 0 | bfd_vma x; |
3952 | |
|
3953 | 0 | relocation += rel->r_addend; |
3954 | 0 | if (r_type == R_SPARC_LOX10 |
3955 | 0 | || (bfd_signed_vma) relocation < 0) |
3956 | 0 | relocation = (relocation & 0x3ff) | 0x1c00; |
3957 | 0 | else |
3958 | 0 | relocation = (relocation & 0x3ff); |
3959 | |
|
3960 | 0 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3961 | 0 | x = (x & ~(bfd_vma) 0x1fff) | relocation; |
3962 | 0 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
3963 | |
|
3964 | 0 | r = bfd_reloc_ok; |
3965 | 0 | } |
3966 | 0 | else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30) |
3967 | 0 | && sec_do_relax (input_section) |
3968 | 0 | && rel->r_offset + 4 < input_section->size) |
3969 | 0 | { |
3970 | 0 | #define G0 0 |
3971 | 0 | #define O7 15 |
3972 | 0 | #define XCC (2 << 20) |
3973 | 0 | #define COND(x) (((x)&0xf)<<25) |
3974 | 0 | #define CONDA COND(0x8) |
3975 | 0 | #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC) |
3976 | 0 | #define INSN_BA (F2(0,2) | CONDA) |
3977 | 0 | #define INSN_OR F3(2, 0x2, 0) |
3978 | 0 | #define INSN_NOP F2(0,4) |
3979 | |
|
3980 | 0 | bfd_vma x, y; |
3981 | | |
3982 | | /* If the instruction is a call with either: |
3983 | | restore |
3984 | | arithmetic instruction with rd == %o7 |
3985 | | where rs1 != %o7 and rs2 if it is register != %o7 |
3986 | | then we can optimize if the call destination is near |
3987 | | by changing the call into a branch always. */ |
3988 | 0 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3989 | 0 | y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); |
3990 | 0 | if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2)) |
3991 | 0 | { |
3992 | 0 | if (((y & OP3(~0)) == OP3(0x3d) /* restore */ |
3993 | 0 | || ((y & OP3(0x28)) == 0 /* arithmetic */ |
3994 | 0 | && (y & RD(~0)) == RD(O7))) |
3995 | 0 | && (y & RS1(~0)) != RS1(O7) |
3996 | 0 | && ((y & F3I(~0)) |
3997 | 0 | || (y & RS2(~0)) != RS2(O7))) |
3998 | 0 | { |
3999 | 0 | bfd_vma reloc; |
4000 | |
|
4001 | 0 | reloc = relocation + rel->r_addend - rel->r_offset; |
4002 | 0 | reloc -= (input_section->output_section->vma |
4003 | 0 | + input_section->output_offset); |
4004 | | |
4005 | | /* Ensure the branch fits into simm22. */ |
4006 | 0 | if ((reloc & 3) == 0 |
4007 | 0 | && ((reloc & ~(bfd_vma)0x7fffff) == 0 |
4008 | 0 | || ((reloc | 0x7fffff) == ~(bfd_vma)0))) |
4009 | 0 | { |
4010 | 0 | reloc >>= 2; |
4011 | | |
4012 | | /* Check whether it fits into simm19. */ |
4013 | 0 | if (((reloc & 0x3c0000) == 0 |
4014 | 0 | || (reloc & 0x3c0000) == 0x3c0000) |
4015 | 0 | && (ABI_64_P (output_bfd) |
4016 | 0 | || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS)) |
4017 | 0 | x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */ |
4018 | 0 | else |
4019 | 0 | x = INSN_BA | (reloc & 0x3fffff); /* ba */ |
4020 | 0 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); |
4021 | 0 | r = bfd_reloc_ok; |
4022 | 0 | if (rel->r_offset >= 4 |
4023 | 0 | && (y & (0xffffffff ^ RS1(~0))) |
4024 | 0 | == (INSN_OR | RD(O7) | RS2(G0))) |
4025 | 0 | { |
4026 | 0 | bfd_vma z; |
4027 | 0 | unsigned int reg; |
4028 | |
|
4029 | 0 | z = bfd_get_32 (input_bfd, |
4030 | 0 | contents + rel->r_offset - 4); |
4031 | 0 | if ((z & (0xffffffff ^ RD(~0))) |
4032 | 0 | != (INSN_OR | RS1(O7) | RS2(G0))) |
4033 | 0 | continue; |
4034 | | |
4035 | | /* The sequence was |
4036 | | or %o7, %g0, %rN |
4037 | | call foo |
4038 | | or %rN, %g0, %o7 |
4039 | | |
4040 | | If call foo was replaced with ba, replace |
4041 | | or %rN, %g0, %o7 with nop. */ |
4042 | | |
4043 | 0 | reg = (y & RS1(~0)) >> 14; |
4044 | 0 | if (reg != ((z & RD(~0)) >> 25) |
4045 | 0 | || reg == G0 || reg == O7) |
4046 | 0 | continue; |
4047 | | |
4048 | 0 | bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP, |
4049 | 0 | contents + rel->r_offset + 4); |
4050 | 0 | } |
4051 | |
|
4052 | 0 | } |
4053 | 0 | } |
4054 | 0 | } |
4055 | 0 | } |
4056 | | |
4057 | 0 | if (r == bfd_reloc_continue) |
4058 | 0 | { |
4059 | 0 | do_relocation: |
4060 | 0 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
4061 | 0 | contents, rel->r_offset, |
4062 | 0 | relocation, rel->r_addend); |
4063 | 0 | } |
4064 | 0 | if (r != bfd_reloc_ok) |
4065 | 0 | { |
4066 | 0 | switch (r) |
4067 | 0 | { |
4068 | 0 | default: |
4069 | 0 | case bfd_reloc_outofrange: |
4070 | 0 | abort (); |
4071 | 0 | case bfd_reloc_overflow: |
4072 | 0 | { |
4073 | 0 | const char *name; |
4074 | | |
4075 | | /* The Solaris native linker silently disregards overflows. |
4076 | | We don't, but this breaks stabs debugging info, whose |
4077 | | relocations are only 32-bits wide. Ignore overflows in |
4078 | | this case and also for discarded entries. */ |
4079 | 0 | if ((r_type == R_SPARC_32 |
4080 | 0 | || r_type == R_SPARC_UA32 |
4081 | 0 | || r_type == R_SPARC_DISP32) |
4082 | 0 | && (((input_section->flags & SEC_DEBUGGING) != 0 |
4083 | 0 | && strcmp (bfd_section_name (input_section), |
4084 | 0 | ".stab") == 0) |
4085 | 0 | || _bfd_elf_section_offset (output_bfd, info, |
4086 | 0 | input_section, |
4087 | 0 | rel->r_offset) |
4088 | 0 | == (bfd_vma)-1)) |
4089 | 0 | break; |
4090 | | |
4091 | 0 | if (h != NULL) |
4092 | 0 | { |
4093 | | /* Assume this is a call protected by other code that |
4094 | | detect the symbol is undefined. If this is the case, |
4095 | | we can safely ignore the overflow. If not, the |
4096 | | program is hosed anyway, and a little warning isn't |
4097 | | going to help. */ |
4098 | 0 | if (h->root.type == bfd_link_hash_undefweak |
4099 | 0 | && howto->pc_relative) |
4100 | 0 | break; |
4101 | | |
4102 | 0 | name = NULL; |
4103 | 0 | } |
4104 | 0 | else |
4105 | 0 | { |
4106 | 0 | name = bfd_elf_string_from_elf_section (input_bfd, |
4107 | 0 | symtab_hdr->sh_link, |
4108 | 0 | sym->st_name); |
4109 | 0 | if (name == NULL) |
4110 | 0 | return false; |
4111 | 0 | if (*name == '\0') |
4112 | 0 | name = bfd_section_name (sec); |
4113 | 0 | } |
4114 | 0 | (*info->callbacks->reloc_overflow) |
4115 | 0 | (info, (h ? &h->root : NULL), name, howto->name, |
4116 | 0 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); |
4117 | 0 | } |
4118 | 0 | break; |
4119 | 0 | } |
4120 | 0 | } |
4121 | 0 | } |
4122 | | |
4123 | 0 | return true; |
4124 | 0 | } |
4125 | | |
4126 | | /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry |
4127 | | and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET |
4128 | | is the offset of the associated .got.plt entry from |
4129 | | _GLOBAL_OFFSET_TABLE_. */ |
4130 | | |
4131 | | static void |
4132 | | sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info, |
4133 | | bfd_vma plt_offset, bfd_vma plt_index, |
4134 | | bfd_vma got_offset) |
4135 | 0 | { |
4136 | 0 | bfd_vma got_base; |
4137 | 0 | const bfd_vma *plt_entry; |
4138 | 0 | struct _bfd_sparc_elf_link_hash_table *htab; |
4139 | 0 | bfd_byte *loc; |
4140 | 0 | Elf_Internal_Rela rela; |
4141 | |
|
4142 | 0 | htab = _bfd_sparc_elf_hash_table (info); |
4143 | 0 | BFD_ASSERT (htab != NULL); |
4144 | |
|
4145 | 0 | if (bfd_link_pic (info)) |
4146 | 0 | { |
4147 | 0 | plt_entry = sparc_vxworks_shared_plt_entry; |
4148 | 0 | got_base = 0; |
4149 | 0 | } |
4150 | 0 | else |
4151 | 0 | { |
4152 | 0 | plt_entry = sparc_vxworks_exec_plt_entry; |
4153 | 0 | got_base = (htab->elf.hgot->root.u.def.value |
4154 | 0 | + htab->elf.hgot->root.u.def.section->output_offset |
4155 | 0 | + htab->elf.hgot->root.u.def.section->output_section->vma); |
4156 | 0 | } |
4157 | | |
4158 | | /* Fill in the entry in the procedure linkage table. */ |
4159 | 0 | bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10), |
4160 | 0 | htab->elf.splt->contents + plt_offset); |
4161 | 0 | bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff), |
4162 | 0 | htab->elf.splt->contents + plt_offset + 4); |
4163 | 0 | bfd_put_32 (output_bfd, plt_entry[2], |
4164 | 0 | htab->elf.splt->contents + plt_offset + 8); |
4165 | 0 | bfd_put_32 (output_bfd, plt_entry[3], |
4166 | 0 | htab->elf.splt->contents + plt_offset + 12); |
4167 | 0 | bfd_put_32 (output_bfd, plt_entry[4], |
4168 | 0 | htab->elf.splt->contents + plt_offset + 16); |
4169 | 0 | bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10), |
4170 | 0 | htab->elf.splt->contents + plt_offset + 20); |
4171 | | /* PC-relative displacement for a branch to the start of |
4172 | | the PLT section. */ |
4173 | 0 | bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2) |
4174 | 0 | & 0x003fffff), |
4175 | 0 | htab->elf.splt->contents + plt_offset + 24); |
4176 | 0 | bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff), |
4177 | 0 | htab->elf.splt->contents + plt_offset + 28); |
4178 | | |
4179 | | /* Fill in the .got.plt entry, pointing initially at the |
4180 | | second half of the PLT entry. */ |
4181 | 0 | BFD_ASSERT (htab->elf.sgotplt != NULL); |
4182 | 0 | bfd_put_32 (output_bfd, |
4183 | 0 | htab->elf.splt->output_section->vma |
4184 | 0 | + htab->elf.splt->output_offset |
4185 | 0 | + plt_offset + 20, |
4186 | 0 | htab->elf.sgotplt->contents + got_offset); |
4187 | | |
4188 | | /* Add relocations to .rela.plt.unloaded. */ |
4189 | 0 | if (!bfd_link_pic (info)) |
4190 | 0 | { |
4191 | 0 | loc = (htab->srelplt2->contents |
4192 | 0 | + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela)); |
4193 | | |
4194 | | /* Relocate the initial sethi. */ |
4195 | 0 | rela.r_offset = (htab->elf.splt->output_section->vma |
4196 | 0 | + htab->elf.splt->output_offset |
4197 | 0 | + plt_offset); |
4198 | 0 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22); |
4199 | 0 | rela.r_addend = got_offset; |
4200 | 0 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
4201 | 0 | loc += sizeof (Elf32_External_Rela); |
4202 | | |
4203 | | /* Likewise the following or. */ |
4204 | 0 | rela.r_offset += 4; |
4205 | 0 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10); |
4206 | 0 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
4207 | 0 | loc += sizeof (Elf32_External_Rela); |
4208 | | |
4209 | | /* Relocate the .got.plt entry. */ |
4210 | 0 | rela.r_offset = (htab->elf.sgotplt->output_section->vma |
4211 | 0 | + htab->elf.sgotplt->output_offset |
4212 | 0 | + got_offset); |
4213 | 0 | rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32); |
4214 | 0 | rela.r_addend = plt_offset + 20; |
4215 | 0 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
4216 | 0 | } |
4217 | 0 | } |
4218 | | |
4219 | | /* Finish up dynamic symbol handling. We set the contents of various |
4220 | | dynamic sections here. */ |
4221 | | |
4222 | | bool |
4223 | | _bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd, |
4224 | | struct bfd_link_info *info, |
4225 | | struct elf_link_hash_entry *h, |
4226 | | Elf_Internal_Sym *sym) |
4227 | 0 | { |
4228 | 0 | struct _bfd_sparc_elf_link_hash_table *htab; |
4229 | 0 | const struct elf_backend_data *bed; |
4230 | 0 | struct _bfd_sparc_elf_link_hash_entry *eh; |
4231 | 0 | bool resolved_to_zero; |
4232 | |
|
4233 | 0 | htab = _bfd_sparc_elf_hash_table (info); |
4234 | 0 | BFD_ASSERT (htab != NULL); |
4235 | 0 | bed = get_elf_backend_data (output_bfd); |
4236 | |
|
4237 | 0 | eh = (struct _bfd_sparc_elf_link_hash_entry *) h; |
4238 | | |
4239 | | /* We keep PLT/GOT entries without dynamic PLT/GOT relocations for |
4240 | | resolved undefined weak symbols in executable so that their |
4241 | | references have value 0 at run-time. */ |
4242 | 0 | resolved_to_zero = UNDEFINED_WEAK_RESOLVED_TO_ZERO (info, eh); |
4243 | |
|
4244 | 0 | if (h->plt.offset != (bfd_vma) -1) |
4245 | 0 | { |
4246 | 0 | asection *splt; |
4247 | 0 | asection *srela; |
4248 | 0 | Elf_Internal_Rela rela; |
4249 | 0 | bfd_byte *loc; |
4250 | 0 | bfd_vma r_offset, got_offset; |
4251 | 0 | int rela_index; |
4252 | | |
4253 | | /* When building a static executable, use .iplt and |
4254 | | .rela.iplt sections for STT_GNU_IFUNC symbols. */ |
4255 | 0 | if (htab->elf.splt != NULL) |
4256 | 0 | { |
4257 | 0 | splt = htab->elf.splt; |
4258 | 0 | srela = htab->elf.srelplt; |
4259 | 0 | } |
4260 | 0 | else |
4261 | 0 | { |
4262 | 0 | splt = htab->elf.iplt; |
4263 | 0 | srela = htab->elf.irelplt; |
4264 | 0 | } |
4265 | |
|
4266 | 0 | if (splt == NULL || srela == NULL) |
4267 | 0 | abort (); |
4268 | | |
4269 | | /* Fill in the entry in the .rela.plt section. */ |
4270 | 0 | if (htab->elf.target_os == is_vxworks) |
4271 | 0 | { |
4272 | | /* Work out the index of this PLT entry. */ |
4273 | 0 | rela_index = ((h->plt.offset - htab->plt_header_size) |
4274 | 0 | / htab->plt_entry_size); |
4275 | | |
4276 | | /* Calculate the offset of the associated .got.plt entry. |
4277 | | The first three entries are reserved. */ |
4278 | 0 | got_offset = (rela_index + 3) * 4; |
4279 | |
|
4280 | 0 | sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset, |
4281 | 0 | rela_index, got_offset); |
4282 | | |
4283 | | |
4284 | | /* On VxWorks, the relocation points to the .got.plt entry, |
4285 | | not the .plt entry. */ |
4286 | 0 | rela.r_offset = (htab->elf.sgotplt->output_section->vma |
4287 | 0 | + htab->elf.sgotplt->output_offset |
4288 | 0 | + got_offset); |
4289 | 0 | rela.r_addend = 0; |
4290 | 0 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, |
4291 | 0 | R_SPARC_JMP_SLOT); |
4292 | 0 | } |
4293 | 0 | else |
4294 | 0 | { |
4295 | 0 | bool ifunc = false; |
4296 | | |
4297 | | /* Fill in the entry in the procedure linkage table. */ |
4298 | 0 | rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt, |
4299 | 0 | h->plt.offset, splt->size, |
4300 | 0 | &r_offset); |
4301 | |
|
4302 | 0 | if (h == NULL |
4303 | 0 | || h->dynindx == -1 |
4304 | 0 | || ((bfd_link_executable (info) |
4305 | 0 | || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) |
4306 | 0 | && h->def_regular |
4307 | 0 | && h->type == STT_GNU_IFUNC)) |
4308 | 0 | { |
4309 | 0 | ifunc = true; |
4310 | 0 | BFD_ASSERT (h == NULL |
4311 | 0 | || (h->type == STT_GNU_IFUNC |
4312 | 0 | && h->def_regular |
4313 | 0 | && (h->root.type == bfd_link_hash_defined |
4314 | 0 | || h->root.type == bfd_link_hash_defweak))); |
4315 | 0 | } |
4316 | |
|
4317 | 0 | rela.r_offset = r_offset |
4318 | 0 | + (splt->output_section->vma + splt->output_offset); |
4319 | 0 | if (ABI_64_P (output_bfd) |
4320 | 0 | && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)) |
4321 | 0 | { |
4322 | 0 | if (ifunc) |
4323 | 0 | { |
4324 | 0 | rela.r_addend = (h->root.u.def.section->output_section->vma |
4325 | 0 | + h->root.u.def.section->output_offset |
4326 | 0 | + h->root.u.def.value); |
4327 | 0 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, |
4328 | 0 | R_SPARC_IRELATIVE); |
4329 | 0 | } |
4330 | 0 | else |
4331 | 0 | { |
4332 | 0 | rela.r_addend = (-(h->plt.offset + 4) |
4333 | 0 | - splt->output_section->vma |
4334 | 0 | - splt->output_offset); |
4335 | 0 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, |
4336 | 0 | R_SPARC_JMP_SLOT); |
4337 | 0 | } |
4338 | 0 | } |
4339 | 0 | else |
4340 | 0 | { |
4341 | 0 | if (ifunc) |
4342 | 0 | { |
4343 | 0 | rela.r_addend = (h->root.u.def.section->output_section->vma |
4344 | 0 | + h->root.u.def.section->output_offset |
4345 | 0 | + h->root.u.def.value); |
4346 | 0 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, |
4347 | 0 | R_SPARC_JMP_IREL); |
4348 | 0 | } |
4349 | 0 | else |
4350 | 0 | { |
4351 | 0 | rela.r_addend = 0; |
4352 | 0 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, |
4353 | 0 | R_SPARC_JMP_SLOT); |
4354 | 0 | } |
4355 | 0 | } |
4356 | 0 | } |
4357 | | |
4358 | | /* Adjust for the first 4 reserved elements in the .plt section |
4359 | | when setting the offset in the .rela.plt section. |
4360 | | Sun forgot to read their own ABI and copied elf32-sparc behaviour, |
4361 | | thus .plt[4] has corresponding .rela.plt[0] and so on. */ |
4362 | |
|
4363 | 0 | loc = srela->contents; |
4364 | 0 | loc += rela_index * bed->s->sizeof_rela; |
4365 | 0 | bed->s->swap_reloca_out (output_bfd, &rela, loc); |
4366 | |
|
4367 | 0 | if (!resolved_to_zero && !h->def_regular) |
4368 | 0 | { |
4369 | | /* Mark the symbol as undefined, rather than as defined in |
4370 | | the .plt section. Leave the value alone. */ |
4371 | 0 | sym->st_shndx = SHN_UNDEF; |
4372 | | /* If the symbol is weak, we do need to clear the value. |
4373 | | Otherwise, the PLT entry would provide a definition for |
4374 | | the symbol even if the symbol wasn't defined anywhere, |
4375 | | and so the symbol would never be NULL. */ |
4376 | 0 | if (!h->ref_regular_nonweak) |
4377 | 0 | sym->st_value = 0; |
4378 | 0 | } |
4379 | 0 | } |
4380 | | |
4381 | | /* Don't generate dynamic GOT relocation against resolved undefined weak |
4382 | | symbols in an executable. */ |
4383 | 0 | if (h->got.offset != (bfd_vma) -1 |
4384 | 0 | && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD |
4385 | 0 | && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE |
4386 | 0 | && !(h->root.type == bfd_link_hash_undefweak |
4387 | 0 | && (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT |
4388 | 0 | || resolved_to_zero))) |
4389 | 0 | { |
4390 | 0 | asection *sgot; |
4391 | 0 | asection *srela; |
4392 | 0 | Elf_Internal_Rela rela; |
4393 | | |
4394 | | /* This symbol has an entry in the GOT. Set it up. */ |
4395 | |
|
4396 | 0 | sgot = htab->elf.sgot; |
4397 | 0 | srela = htab->elf.srelgot; |
4398 | 0 | BFD_ASSERT (sgot != NULL && srela != NULL); |
4399 | |
|
4400 | 0 | rela.r_offset = (sgot->output_section->vma |
4401 | 0 | + sgot->output_offset |
4402 | 0 | + (h->got.offset &~ (bfd_vma) 1)); |
4403 | | |
4404 | | /* If this is a -Bsymbolic link, and the symbol is defined |
4405 | | locally, we just want to emit a RELATIVE reloc. Likewise if |
4406 | | the symbol was forced to be local because of a version file. |
4407 | | The entry in the global offset table will already have been |
4408 | | initialized in the relocate_section function. */ |
4409 | 0 | if (! bfd_link_pic (info) |
4410 | 0 | && h->type == STT_GNU_IFUNC |
4411 | 0 | && h->def_regular) |
4412 | 0 | { |
4413 | 0 | asection *plt; |
4414 | | |
4415 | | /* We load the GOT entry with the PLT entry. */ |
4416 | 0 | plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt; |
4417 | 0 | SPARC_ELF_PUT_WORD (htab, output_bfd, |
4418 | 0 | (plt->output_section->vma |
4419 | 0 | + plt->output_offset + h->plt.offset), |
4420 | 0 | htab->elf.sgot->contents |
4421 | 0 | + (h->got.offset & ~(bfd_vma) 1)); |
4422 | 0 | return true; |
4423 | 0 | } |
4424 | | |
4425 | 0 | if (bfd_link_pic (info) |
4426 | 0 | && (h->root.type == bfd_link_hash_defined |
4427 | 0 | || h->root.type == bfd_link_hash_defweak) |
4428 | 0 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
4429 | 0 | { |
4430 | 0 | asection *sec = h->root.u.def.section; |
4431 | 0 | if (h->type == STT_GNU_IFUNC) |
4432 | 0 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE); |
4433 | 0 | else |
4434 | 0 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE); |
4435 | 0 | rela.r_addend = (h->root.u.def.value |
4436 | 0 | + sec->output_section->vma |
4437 | 0 | + sec->output_offset); |
4438 | 0 | } |
4439 | 0 | else |
4440 | 0 | { |
4441 | 0 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT); |
4442 | 0 | rela.r_addend = 0; |
4443 | 0 | } |
4444 | |
|
4445 | 0 | SPARC_ELF_PUT_WORD (htab, output_bfd, 0, |
4446 | 0 | sgot->contents + (h->got.offset & ~(bfd_vma) 1)); |
4447 | 0 | sparc_elf_append_rela (output_bfd, srela, &rela); |
4448 | 0 | } |
4449 | | |
4450 | 0 | if (h->needs_copy) |
4451 | 0 | { |
4452 | 0 | asection *s; |
4453 | 0 | Elf_Internal_Rela rela; |
4454 | | |
4455 | | /* This symbols needs a copy reloc. Set it up. */ |
4456 | 0 | BFD_ASSERT (h->dynindx != -1); |
4457 | |
|
4458 | 0 | rela.r_offset = (h->root.u.def.value |
4459 | 0 | + h->root.u.def.section->output_section->vma |
4460 | 0 | + h->root.u.def.section->output_offset); |
4461 | 0 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY); |
4462 | 0 | rela.r_addend = 0; |
4463 | 0 | if (h->root.u.def.section == htab->elf.sdynrelro) |
4464 | 0 | s = htab->elf.sreldynrelro; |
4465 | 0 | else |
4466 | 0 | s = htab->elf.srelbss; |
4467 | 0 | sparc_elf_append_rela (output_bfd, s, &rela); |
4468 | 0 | } |
4469 | | |
4470 | | /* Mark some specially defined symbols as absolute. On VxWorks, |
4471 | | _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the |
4472 | | ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */ |
4473 | 0 | if (sym != NULL |
4474 | 0 | && (h == htab->elf.hdynamic |
4475 | 0 | || (htab->elf.target_os != is_vxworks |
4476 | 0 | && (h == htab->elf.hgot || h == htab->elf.hplt)))) |
4477 | 0 | sym->st_shndx = SHN_ABS; |
4478 | |
|
4479 | 0 | return true; |
4480 | 0 | } |
4481 | | |
4482 | | /* Finish up the dynamic sections. */ |
4483 | | |
4484 | | static bool |
4485 | | sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info, |
4486 | | bfd *dynobj, asection *sdyn, |
4487 | | asection *splt ATTRIBUTE_UNUSED) |
4488 | 0 | { |
4489 | 0 | struct _bfd_sparc_elf_link_hash_table *htab; |
4490 | 0 | const struct elf_backend_data *bed; |
4491 | 0 | bfd_byte *dyncon, *dynconend; |
4492 | 0 | size_t dynsize; |
4493 | 0 | int stt_regidx = -1; |
4494 | 0 | bool abi_64_p; |
4495 | |
|
4496 | 0 | htab = _bfd_sparc_elf_hash_table (info); |
4497 | 0 | BFD_ASSERT (htab != NULL); |
4498 | 0 | bed = get_elf_backend_data (output_bfd); |
4499 | 0 | dynsize = bed->s->sizeof_dyn; |
4500 | 0 | dynconend = sdyn->contents + sdyn->size; |
4501 | 0 | abi_64_p = ABI_64_P (output_bfd); |
4502 | 0 | for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize) |
4503 | 0 | { |
4504 | 0 | Elf_Internal_Dyn dyn; |
4505 | 0 | bool size; |
4506 | |
|
4507 | 0 | bed->s->swap_dyn_in (dynobj, dyncon, &dyn); |
4508 | |
|
4509 | 0 | if (htab->elf.target_os == is_vxworks && dyn.d_tag == DT_PLTGOT) |
4510 | 0 | { |
4511 | | /* On VxWorks, DT_PLTGOT should point to the start of the GOT, |
4512 | | not to the start of the PLT. */ |
4513 | 0 | if (htab->elf.sgotplt) |
4514 | 0 | { |
4515 | 0 | dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma |
4516 | 0 | + htab->elf.sgotplt->output_offset); |
4517 | 0 | bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); |
4518 | 0 | } |
4519 | 0 | } |
4520 | 0 | else if (htab->elf.target_os == is_vxworks |
4521 | 0 | && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn)) |
4522 | 0 | bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); |
4523 | 0 | else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER) |
4524 | 0 | { |
4525 | 0 | if (stt_regidx == -1) |
4526 | 0 | { |
4527 | 0 | stt_regidx = |
4528 | 0 | _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1); |
4529 | 0 | if (stt_regidx == -1) |
4530 | 0 | return false; |
4531 | 0 | } |
4532 | 0 | dyn.d_un.d_val = stt_regidx++; |
4533 | 0 | bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); |
4534 | 0 | } |
4535 | 0 | else |
4536 | 0 | { |
4537 | 0 | asection *s; |
4538 | |
|
4539 | 0 | switch (dyn.d_tag) |
4540 | 0 | { |
4541 | 0 | case DT_PLTGOT: |
4542 | 0 | s = htab->elf.splt; |
4543 | 0 | size = false; |
4544 | 0 | break; |
4545 | 0 | case DT_PLTRELSZ: |
4546 | 0 | s = htab->elf.srelplt; |
4547 | 0 | size = true; |
4548 | 0 | break; |
4549 | 0 | case DT_JMPREL: |
4550 | 0 | s = htab->elf.srelplt; |
4551 | 0 | size = false; |
4552 | 0 | break; |
4553 | 0 | default: |
4554 | 0 | continue; |
4555 | 0 | } |
4556 | | |
4557 | 0 | if (s == NULL) |
4558 | 0 | dyn.d_un.d_val = 0; |
4559 | 0 | else |
4560 | 0 | { |
4561 | 0 | if (!size) |
4562 | 0 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
4563 | 0 | else |
4564 | 0 | dyn.d_un.d_val = s->size; |
4565 | 0 | } |
4566 | 0 | bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); |
4567 | 0 | } |
4568 | 0 | } |
4569 | 0 | return true; |
4570 | 0 | } |
4571 | | |
4572 | | /* Install the first PLT entry in a VxWorks executable and make sure that |
4573 | | .rela.plt.unloaded relocations have the correct symbol indexes. */ |
4574 | | |
4575 | | static void |
4576 | | sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info) |
4577 | 0 | { |
4578 | 0 | struct _bfd_sparc_elf_link_hash_table *htab; |
4579 | 0 | Elf_Internal_Rela rela; |
4580 | 0 | bfd_vma got_base; |
4581 | 0 | bfd_byte *loc; |
4582 | |
|
4583 | 0 | htab = _bfd_sparc_elf_hash_table (info); |
4584 | 0 | BFD_ASSERT (htab != NULL); |
4585 | | |
4586 | | /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */ |
4587 | 0 | got_base = (htab->elf.hgot->root.u.def.section->output_section->vma |
4588 | 0 | + htab->elf.hgot->root.u.def.section->output_offset |
4589 | 0 | + htab->elf.hgot->root.u.def.value); |
4590 | | |
4591 | | /* Install the initial PLT entry. */ |
4592 | 0 | bfd_put_32 (output_bfd, |
4593 | 0 | sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10), |
4594 | 0 | htab->elf.splt->contents); |
4595 | 0 | bfd_put_32 (output_bfd, |
4596 | 0 | sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff), |
4597 | 0 | htab->elf.splt->contents + 4); |
4598 | 0 | bfd_put_32 (output_bfd, |
4599 | 0 | sparc_vxworks_exec_plt0_entry[2], |
4600 | 0 | htab->elf.splt->contents + 8); |
4601 | 0 | bfd_put_32 (output_bfd, |
4602 | 0 | sparc_vxworks_exec_plt0_entry[3], |
4603 | 0 | htab->elf.splt->contents + 12); |
4604 | 0 | bfd_put_32 (output_bfd, |
4605 | 0 | sparc_vxworks_exec_plt0_entry[4], |
4606 | 0 | htab->elf.splt->contents + 16); |
4607 | |
|
4608 | 0 | loc = htab->srelplt2->contents; |
4609 | | |
4610 | | /* Add an unloaded relocation for the initial entry's "sethi". */ |
4611 | 0 | rela.r_offset = (htab->elf.splt->output_section->vma |
4612 | 0 | + htab->elf.splt->output_offset); |
4613 | 0 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22); |
4614 | 0 | rela.r_addend = 8; |
4615 | 0 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
4616 | 0 | loc += sizeof (Elf32_External_Rela); |
4617 | | |
4618 | | /* Likewise the following "or". */ |
4619 | 0 | rela.r_offset += 4; |
4620 | 0 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10); |
4621 | 0 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
4622 | 0 | loc += sizeof (Elf32_External_Rela); |
4623 | | |
4624 | | /* Fix up the remaining .rela.plt.unloaded relocations. They may have |
4625 | | the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order |
4626 | | in which symbols were output. */ |
4627 | 0 | while (loc < htab->srelplt2->contents + htab->srelplt2->size) |
4628 | 0 | { |
4629 | 0 | Elf_Internal_Rela rel; |
4630 | | |
4631 | | /* The entry's initial "sethi" (against _G_O_T_). */ |
4632 | 0 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); |
4633 | 0 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22); |
4634 | 0 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
4635 | 0 | loc += sizeof (Elf32_External_Rela); |
4636 | | |
4637 | | /* The following "or" (also against _G_O_T_). */ |
4638 | 0 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); |
4639 | 0 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10); |
4640 | 0 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
4641 | 0 | loc += sizeof (Elf32_External_Rela); |
4642 | | |
4643 | | /* The .got.plt entry (against _P_L_T_). */ |
4644 | 0 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); |
4645 | 0 | rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32); |
4646 | 0 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); |
4647 | 0 | loc += sizeof (Elf32_External_Rela); |
4648 | 0 | } |
4649 | 0 | } |
4650 | | |
4651 | | /* Install the first PLT entry in a VxWorks shared object. */ |
4652 | | |
4653 | | static void |
4654 | | sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info) |
4655 | 0 | { |
4656 | 0 | struct _bfd_sparc_elf_link_hash_table *htab; |
4657 | 0 | unsigned int i; |
4658 | |
|
4659 | 0 | htab = _bfd_sparc_elf_hash_table (info); |
4660 | 0 | BFD_ASSERT (htab != NULL); |
4661 | |
|
4662 | 0 | for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++) |
4663 | 0 | bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i], |
4664 | 0 | htab->elf.splt->contents + i * 4); |
4665 | 0 | } |
4666 | | |
4667 | | /* Finish up local dynamic symbol handling. We set the contents of |
4668 | | various dynamic sections here. */ |
4669 | | |
4670 | | static int |
4671 | | finish_local_dynamic_symbol (void **slot, void *inf) |
4672 | 0 | { |
4673 | 0 | struct elf_link_hash_entry *h |
4674 | 0 | = (struct elf_link_hash_entry *) *slot; |
4675 | 0 | struct bfd_link_info *info |
4676 | 0 | = (struct bfd_link_info *) inf; |
4677 | |
|
4678 | 0 | return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info, |
4679 | 0 | h, NULL); |
4680 | 0 | } |
4681 | | |
4682 | | /* Finish up undefined weak symbol handling in PIE. Fill its PLT entry |
4683 | | here since undefined weak symbol may not be dynamic and may not be |
4684 | | called for _bfd_sparc_elf_finish_dynamic_symbol. */ |
4685 | | |
4686 | | static bool |
4687 | | pie_finish_undefweak_symbol (struct bfd_hash_entry *bh, |
4688 | | void *inf) |
4689 | 0 | { |
4690 | 0 | struct elf_link_hash_entry *h = (struct elf_link_hash_entry *) bh; |
4691 | 0 | struct bfd_link_info *info = (struct bfd_link_info *) inf; |
4692 | |
|
4693 | 0 | if (h->root.type != bfd_link_hash_undefweak |
4694 | 0 | || h->dynindx != -1) |
4695 | 0 | return true; |
4696 | | |
4697 | 0 | return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info, |
4698 | 0 | h, NULL); |
4699 | 0 | } |
4700 | | |
4701 | | bool |
4702 | | _bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) |
4703 | 0 | { |
4704 | 0 | bfd *dynobj; |
4705 | 0 | asection *sdyn; |
4706 | 0 | struct _bfd_sparc_elf_link_hash_table *htab; |
4707 | |
|
4708 | 0 | htab = _bfd_sparc_elf_hash_table (info); |
4709 | 0 | BFD_ASSERT (htab != NULL); |
4710 | 0 | dynobj = htab->elf.dynobj; |
4711 | | |
4712 | | /* We arranged in size_dynamic_sections to put the STT_REGISTER |
4713 | | entries at the end of the dynlocal list, so they came at the end |
4714 | | of the local symbols in the symtab. Except that they aren't |
4715 | | STB_LOCAL, so we need to back up symtab->sh_info. */ |
4716 | 0 | if (ABI_64_P (output_bfd) |
4717 | 0 | && elf_hash_table (info)->dynlocal) |
4718 | 0 | { |
4719 | 0 | asection *dynsymsec = bfd_get_linker_section (dynobj, ".dynsym"); |
4720 | 0 | struct elf_link_local_dynamic_entry *e; |
4721 | |
|
4722 | 0 | for (e = elf_hash_table (info)->dynlocal; e ; e = e->next) |
4723 | 0 | if (e->input_indx == -1) |
4724 | 0 | break; |
4725 | 0 | if (e) |
4726 | 0 | elf_section_data (dynsymsec->output_section)->this_hdr.sh_info |
4727 | 0 | = e->dynindx; |
4728 | 0 | } |
4729 | |
|
4730 | 0 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
4731 | |
|
4732 | 0 | if (elf_hash_table (info)->dynamic_sections_created) |
4733 | 0 | { |
4734 | 0 | asection *splt; |
4735 | |
|
4736 | 0 | splt = htab->elf.splt; |
4737 | 0 | BFD_ASSERT (splt != NULL && sdyn != NULL); |
4738 | |
|
4739 | 0 | if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt)) |
4740 | 0 | return false; |
4741 | | |
4742 | | /* Initialize the contents of the .plt section. */ |
4743 | 0 | if (splt->size > 0) |
4744 | 0 | { |
4745 | 0 | if (htab->elf.target_os == is_vxworks) |
4746 | 0 | { |
4747 | 0 | if (bfd_link_pic (info)) |
4748 | 0 | sparc_vxworks_finish_shared_plt (output_bfd, info); |
4749 | 0 | else |
4750 | 0 | sparc_vxworks_finish_exec_plt (output_bfd, info); |
4751 | 0 | } |
4752 | 0 | else |
4753 | 0 | { |
4754 | 0 | memset (splt->contents, 0, htab->plt_header_size); |
4755 | 0 | if (!ABI_64_P (output_bfd)) |
4756 | 0 | bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, |
4757 | 0 | splt->contents + splt->size - 4); |
4758 | 0 | } |
4759 | 0 | } |
4760 | |
|
4761 | 0 | if (elf_section_data (splt->output_section) != NULL) |
4762 | 0 | elf_section_data (splt->output_section)->this_hdr.sh_entsize |
4763 | 0 | = ((htab->elf.target_os == is_vxworks |
4764 | 0 | || !ABI_64_P (output_bfd)) |
4765 | 0 | ? 0 : htab->plt_entry_size); |
4766 | 0 | } |
4767 | | |
4768 | | /* Set the first entry in the global offset table to the address of |
4769 | | the dynamic section. */ |
4770 | 0 | if (htab->elf.sgot && htab->elf.sgot->size > 0) |
4771 | 0 | { |
4772 | 0 | bfd_vma val = (sdyn ? |
4773 | 0 | sdyn->output_section->vma + sdyn->output_offset : |
4774 | 0 | 0); |
4775 | |
|
4776 | 0 | SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents); |
4777 | 0 | } |
4778 | |
|
4779 | 0 | if (htab->elf.sgot) |
4780 | 0 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = |
4781 | 0 | SPARC_ELF_WORD_BYTES (htab); |
4782 | | |
4783 | | /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */ |
4784 | 0 | htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info); |
4785 | | |
4786 | | /* Fill PLT entries for undefined weak symbols in PIE. */ |
4787 | 0 | if (bfd_link_pie (info)) |
4788 | 0 | bfd_hash_traverse (&info->hash->table, |
4789 | 0 | pie_finish_undefweak_symbol, |
4790 | 0 | info); |
4791 | 0 | return true; |
4792 | 0 | } |
4793 | | |
4794 | | |
4795 | | /* Set the right machine number for a SPARC ELF file. */ |
4796 | | |
4797 | | bool |
4798 | | _bfd_sparc_elf_object_p (bfd *abfd) |
4799 | 34.1k | { |
4800 | 34.1k | obj_attribute *attrs = elf_known_obj_attributes (abfd)[OBJ_ATTR_GNU]; |
4801 | 34.1k | obj_attribute *hwcaps = &attrs[Tag_GNU_Sparc_HWCAPS]; |
4802 | 34.1k | obj_attribute *hwcaps2 = &attrs[Tag_GNU_Sparc_HWCAPS2]; |
4803 | | |
4804 | 34.1k | unsigned int v9c_hwcaps_mask = ELF_SPARC_HWCAP_ASI_BLK_INIT; |
4805 | 34.1k | unsigned int v9d_hwcaps_mask = (ELF_SPARC_HWCAP_FMAF |
4806 | 34.1k | | ELF_SPARC_HWCAP_VIS3 |
4807 | 34.1k | | ELF_SPARC_HWCAP_HPC); |
4808 | 34.1k | unsigned int v9e_hwcaps_mask = (ELF_SPARC_HWCAP_AES |
4809 | 34.1k | | ELF_SPARC_HWCAP_DES |
4810 | 34.1k | | ELF_SPARC_HWCAP_KASUMI |
4811 | 34.1k | | ELF_SPARC_HWCAP_CAMELLIA |
4812 | 34.1k | | ELF_SPARC_HWCAP_MD5 |
4813 | 34.1k | | ELF_SPARC_HWCAP_SHA1 |
4814 | 34.1k | | ELF_SPARC_HWCAP_SHA256 |
4815 | 34.1k | | ELF_SPARC_HWCAP_SHA512 |
4816 | 34.1k | | ELF_SPARC_HWCAP_MPMUL |
4817 | 34.1k | | ELF_SPARC_HWCAP_MONT |
4818 | 34.1k | | ELF_SPARC_HWCAP_CRC32C |
4819 | 34.1k | | ELF_SPARC_HWCAP_CBCOND |
4820 | 34.1k | | ELF_SPARC_HWCAP_PAUSE); |
4821 | 34.1k | unsigned int v9v_hwcaps_mask = (ELF_SPARC_HWCAP_FJFMAU |
4822 | 34.1k | | ELF_SPARC_HWCAP_IMA); |
4823 | 34.1k | unsigned int v9m_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC5 |
4824 | 34.1k | | ELF_SPARC_HWCAP2_MWAIT |
4825 | 34.1k | | ELF_SPARC_HWCAP2_XMPMUL |
4826 | 34.1k | | ELF_SPARC_HWCAP2_XMONT); |
4827 | 34.1k | unsigned int m8_hwcaps2_mask = (ELF_SPARC_HWCAP2_SPARC6 |
4828 | 34.1k | | ELF_SPARC_HWCAP2_ONADDSUB |
4829 | 34.1k | | ELF_SPARC_HWCAP2_ONMUL |
4830 | 34.1k | | ELF_SPARC_HWCAP2_ONDIV |
4831 | 34.1k | | ELF_SPARC_HWCAP2_DICTUNP |
4832 | 34.1k | | ELF_SPARC_HWCAP2_FPCMPSHL |
4833 | 34.1k | | ELF_SPARC_HWCAP2_RLE |
4834 | 34.1k | | ELF_SPARC_HWCAP2_SHA3); |
4835 | | |
4836 | 34.1k | if (ABI_64_P (abfd)) |
4837 | 15.6k | { |
4838 | 15.6k | unsigned long mach = bfd_mach_sparc_v9; |
4839 | | |
4840 | 15.6k | if (hwcaps2->i & m8_hwcaps2_mask) |
4841 | 0 | mach = bfd_mach_sparc_v9m8; |
4842 | 15.6k | else if (hwcaps2->i & v9m_hwcaps2_mask) |
4843 | 0 | mach = bfd_mach_sparc_v9m; |
4844 | 15.6k | else if (hwcaps->i & v9v_hwcaps_mask) |
4845 | 0 | mach = bfd_mach_sparc_v9v; |
4846 | 15.6k | else if (hwcaps->i & v9e_hwcaps_mask) |
4847 | 0 | mach = bfd_mach_sparc_v9e; |
4848 | 15.6k | else if (hwcaps->i & v9d_hwcaps_mask) |
4849 | 0 | mach = bfd_mach_sparc_v9d; |
4850 | 15.6k | else if (hwcaps->i & v9c_hwcaps_mask) |
4851 | 0 | mach = bfd_mach_sparc_v9c; |
4852 | 15.6k | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3) |
4853 | 6.65k | mach = bfd_mach_sparc_v9b; |
4854 | 8.97k | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) |
4855 | 2.71k | mach = bfd_mach_sparc_v9a; |
4856 | 15.6k | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach); |
4857 | 15.6k | } |
4858 | 18.5k | else |
4859 | 18.5k | { |
4860 | 18.5k | if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS) |
4861 | 10.8k | { |
4862 | 10.8k | if (hwcaps2->i & m8_hwcaps2_mask) |
4863 | 0 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
4864 | 0 | bfd_mach_sparc_v8plusm8); |
4865 | 10.8k | else if (hwcaps2->i & v9m_hwcaps2_mask) |
4866 | 0 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
4867 | 0 | bfd_mach_sparc_v8plusm); |
4868 | 10.8k | else if (hwcaps->i & v9v_hwcaps_mask) |
4869 | 0 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
4870 | 0 | bfd_mach_sparc_v8plusv); |
4871 | 10.8k | else if (hwcaps->i & v9e_hwcaps_mask) |
4872 | 0 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
4873 | 0 | bfd_mach_sparc_v8pluse); |
4874 | 10.8k | else if (hwcaps->i & v9d_hwcaps_mask) |
4875 | 0 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
4876 | 0 | bfd_mach_sparc_v8plusd); |
4877 | 10.8k | else if (hwcaps->i & v9c_hwcaps_mask) |
4878 | 0 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
4879 | 0 | bfd_mach_sparc_v8plusc); |
4880 | 10.8k | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3) |
4881 | 3.05k | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
4882 | 3.05k | bfd_mach_sparc_v8plusb); |
4883 | 7.81k | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) |
4884 | 2.40k | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
4885 | 2.40k | bfd_mach_sparc_v8plusa); |
4886 | 5.40k | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS) |
4887 | 2.69k | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
4888 | 2.69k | bfd_mach_sparc_v8plus); |
4889 | 2.71k | else |
4890 | 2.71k | return false; |
4891 | 10.8k | } |
4892 | 7.64k | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA) |
4893 | 3.42k | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, |
4894 | 3.42k | bfd_mach_sparc_sparclite_le); |
4895 | 4.21k | else |
4896 | 4.21k | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc); |
4897 | 18.5k | } |
4898 | 34.1k | } |
4899 | | |
4900 | | /* Return address for Ith PLT stub in section PLT, for relocation REL |
4901 | | or (bfd_vma) -1 if it should not be included. */ |
4902 | | |
4903 | | bfd_vma |
4904 | | _bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel) |
4905 | 852 | { |
4906 | 852 | if (ABI_64_P (plt->owner)) |
4907 | 0 | { |
4908 | 0 | bfd_vma j; |
4909 | |
|
4910 | 0 | i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE; |
4911 | 0 | if (i < PLT64_LARGE_THRESHOLD) |
4912 | 0 | return plt->vma + i * PLT64_ENTRY_SIZE; |
4913 | | |
4914 | 0 | j = (i - PLT64_LARGE_THRESHOLD) % 160; |
4915 | 0 | i -= j; |
4916 | 0 | return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6; |
4917 | 0 | } |
4918 | 852 | else |
4919 | 852 | return rel->address; |
4920 | 852 | } |
4921 | | |
4922 | | /* Merge backend specific data from an object file to the output |
4923 | | object file when linking. */ |
4924 | | |
4925 | | bool |
4926 | | _bfd_sparc_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
4927 | 0 | { |
4928 | 0 | bfd *obfd = info->output_bfd; |
4929 | 0 | obj_attribute *in_attr, *in_attrs; |
4930 | 0 | obj_attribute *out_attr, *out_attrs; |
4931 | |
|
4932 | 0 | if (!elf_known_obj_attributes_proc (obfd)[0].i) |
4933 | 0 | { |
4934 | | /* This is the first object. Copy the attributes. */ |
4935 | 0 | _bfd_elf_copy_obj_attributes (ibfd, obfd); |
4936 | | |
4937 | | /* Use the Tag_null value to indicate the attributes have been |
4938 | | initialized. */ |
4939 | 0 | elf_known_obj_attributes_proc (obfd)[0].i = 1; |
4940 | |
|
4941 | 0 | return true; |
4942 | 0 | } |
4943 | | |
4944 | 0 | in_attrs = elf_known_obj_attributes (ibfd)[OBJ_ATTR_GNU]; |
4945 | 0 | out_attrs = elf_known_obj_attributes (obfd)[OBJ_ATTR_GNU]; |
4946 | |
|
4947 | 0 | in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS]; |
4948 | 0 | out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS]; |
4949 | |
|
4950 | 0 | out_attr->i |= in_attr->i; |
4951 | 0 | out_attr->type = 1; |
4952 | |
|
4953 | 0 | in_attr = &in_attrs[Tag_GNU_Sparc_HWCAPS2]; |
4954 | 0 | out_attr = &out_attrs[Tag_GNU_Sparc_HWCAPS2]; |
4955 | |
|
4956 | 0 | out_attr->i |= in_attr->i; |
4957 | 0 | out_attr->type = 1; |
4958 | | |
4959 | | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
4960 | 0 | _bfd_elf_merge_object_attributes (ibfd, info); |
4961 | |
|
4962 | 0 | return true; |
4963 | 0 | } |