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22b75d0a | 1 | /* SPARC-specific support for ELF |
4dfe6ac6 | 2 | Copyright 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
22b75d0a DM |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 8 | the Free Software Foundation; either version 3 of the License, or |
22b75d0a DM |
9 | (at your option) any later version. |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
19 | MA 02110-1301, USA. */ | |
20 | ||
22b75d0a DM |
21 | |
22 | /* This file handles functionality common to the different SPARC ABI's. */ | |
23 | ||
22b75d0a | 24 | #include "sysdep.h" |
3db64b00 | 25 | #include "bfd.h" |
22b75d0a DM |
26 | #include "bfdlink.h" |
27 | #include "libbfd.h" | |
910600e9 | 28 | #include "libiberty.h" |
22b75d0a DM |
29 | #include "elf-bfd.h" |
30 | #include "elf/sparc.h" | |
31 | #include "opcode/sparc.h" | |
32 | #include "elfxx-sparc.h" | |
910600e9 | 33 | #include "elf-vxworks.h" |
d0c9aeb3 DM |
34 | #include "objalloc.h" |
35 | #include "hashtab.h" | |
22b75d0a DM |
36 | |
37 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */ | |
38 | #define MINUS_ONE (~ (bfd_vma) 0) | |
39 | ||
40 | #define ABI_64_P(abfd) \ | |
41 | (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64) | |
42 | ||
43 | /* The relocation "howto" table. */ | |
44 | ||
45 | /* Utility for performing the standard initial work of an instruction | |
46 | relocation. | |
47 | *PRELOCATION will contain the relocated item. | |
48 | *PINSN will contain the instruction from the input stream. | |
49 | If the result is `bfd_reloc_other' the caller can continue with | |
50 | performing the relocation. Otherwise it must stop and return the | |
51 | value to its caller. */ | |
52 | ||
53 | static bfd_reloc_status_type | |
54 | init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
55 | PTR data, asection *input_section, bfd *output_bfd, | |
56 | bfd_vma *prelocation, bfd_vma *pinsn) | |
57 | { | |
58 | bfd_vma relocation; | |
59 | reloc_howto_type *howto = reloc_entry->howto; | |
60 | ||
61 | if (output_bfd != (bfd *) NULL | |
62 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
63 | && (! howto->partial_inplace | |
64 | || reloc_entry->addend == 0)) | |
65 | { | |
66 | reloc_entry->address += input_section->output_offset; | |
67 | return bfd_reloc_ok; | |
68 | } | |
69 | ||
70 | /* This works because partial_inplace is FALSE. */ | |
71 | if (output_bfd != NULL) | |
72 | return bfd_reloc_continue; | |
73 | ||
74 | if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) | |
75 | return bfd_reloc_outofrange; | |
76 | ||
77 | relocation = (symbol->value | |
78 | + symbol->section->output_section->vma | |
79 | + symbol->section->output_offset); | |
80 | relocation += reloc_entry->addend; | |
81 | if (howto->pc_relative) | |
82 | { | |
83 | relocation -= (input_section->output_section->vma | |
84 | + input_section->output_offset); | |
85 | relocation -= reloc_entry->address; | |
86 | } | |
87 | ||
88 | *prelocation = relocation; | |
89 | *pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address); | |
90 | return bfd_reloc_other; | |
91 | } | |
92 | ||
93 | /* For unsupported relocs. */ | |
94 | ||
95 | static bfd_reloc_status_type | |
96 | sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED, | |
97 | arelent *reloc_entry ATTRIBUTE_UNUSED, | |
98 | asymbol *symbol ATTRIBUTE_UNUSED, | |
99 | PTR data ATTRIBUTE_UNUSED, | |
100 | asection *input_section ATTRIBUTE_UNUSED, | |
101 | bfd *output_bfd ATTRIBUTE_UNUSED, | |
102 | char **error_message ATTRIBUTE_UNUSED) | |
103 | { | |
104 | return bfd_reloc_notsupported; | |
105 | } | |
106 | ||
107 | /* Handle the WDISP16 reloc. */ | |
108 | ||
109 | static bfd_reloc_status_type | |
110 | sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
111 | PTR data, asection *input_section, bfd *output_bfd, | |
112 | char **error_message ATTRIBUTE_UNUSED) | |
113 | { | |
114 | bfd_vma relocation; | |
115 | bfd_vma insn; | |
116 | bfd_reloc_status_type status; | |
117 | ||
118 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
119 | input_section, output_bfd, &relocation, &insn); | |
120 | if (status != bfd_reloc_other) | |
121 | return status; | |
122 | ||
123 | insn &= ~ (bfd_vma) 0x303fff; | |
124 | insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff); | |
125 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
126 | ||
127 | if ((bfd_signed_vma) relocation < - 0x40000 | |
128 | || (bfd_signed_vma) relocation > 0x3ffff) | |
129 | return bfd_reloc_overflow; | |
130 | else | |
131 | return bfd_reloc_ok; | |
132 | } | |
133 | ||
134 | /* Handle the HIX22 reloc. */ | |
135 | ||
136 | static bfd_reloc_status_type | |
137 | sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
138 | PTR data, asection *input_section, bfd *output_bfd, | |
139 | char **error_message ATTRIBUTE_UNUSED) | |
140 | { | |
141 | bfd_vma relocation; | |
142 | bfd_vma insn; | |
143 | bfd_reloc_status_type status; | |
144 | ||
145 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
146 | input_section, output_bfd, &relocation, &insn); | |
147 | if (status != bfd_reloc_other) | |
148 | return status; | |
149 | ||
150 | relocation ^= MINUS_ONE; | |
151 | insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); | |
152 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
153 | ||
154 | if ((relocation & ~ (bfd_vma) 0xffffffff) != 0) | |
155 | return bfd_reloc_overflow; | |
156 | else | |
157 | return bfd_reloc_ok; | |
158 | } | |
159 | ||
160 | /* Handle the LOX10 reloc. */ | |
161 | ||
162 | static bfd_reloc_status_type | |
163 | sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
164 | PTR data, asection *input_section, bfd *output_bfd, | |
165 | char **error_message ATTRIBUTE_UNUSED) | |
166 | { | |
167 | bfd_vma relocation; | |
168 | bfd_vma insn; | |
169 | bfd_reloc_status_type status; | |
170 | ||
171 | status = init_insn_reloc (abfd, reloc_entry, symbol, data, | |
172 | input_section, output_bfd, &relocation, &insn); | |
173 | if (status != bfd_reloc_other) | |
174 | return status; | |
175 | ||
176 | insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff); | |
177 | bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address); | |
178 | ||
179 | return bfd_reloc_ok; | |
180 | } | |
181 | ||
182 | static reloc_howto_type _bfd_sparc_elf_howto_table[] = | |
183 | { | |
184 | HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE), | |
185 | HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE), | |
186 | HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE), | |
187 | HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE), | |
188 | HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE), | |
189 | HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE), | |
190 | HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE), | |
191 | HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE), | |
192 | HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE), | |
193 | HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE), | |
194 | HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE), | |
195 | HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE), | |
196 | HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE), | |
197 | HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE), | |
198 | HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE), | |
199 | HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE), | |
200 | HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE), | |
201 | HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE), | |
202 | HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE), | |
203 | HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE), | |
204 | 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), | |
205 | 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), | |
206 | HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE), | |
207 | HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE), | |
208 | HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE), | |
209 | HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE), | |
210 | HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE), | |
211 | HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE), | |
212 | HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE), | |
213 | HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE), | |
214 | HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE), | |
215 | HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE), | |
216 | HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE), | |
217 | HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE), | |
218 | HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE), | |
219 | HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE), | |
220 | HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE), | |
221 | HOWTO(R_SPARC_PC_HH22, 42,2,22,TRUE, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", FALSE,0,0x003fffff,TRUE), | |
222 | HOWTO(R_SPARC_PC_HM10, 32,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", FALSE,0,0x000003ff,TRUE), | |
223 | HOWTO(R_SPARC_PC_LM22, 10,2,22,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", FALSE,0,0x003fffff,TRUE), | |
224 | HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE), | |
225 | HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE), | |
226 | 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), | |
227 | HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE), | |
228 | HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE), | |
229 | HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE), | |
230 | HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE), | |
231 | HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE), | |
232 | HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE), | |
233 | HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE), | |
234 | HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE), | |
235 | HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE), | |
236 | HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE), | |
237 | HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE), | |
238 | HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE), | |
239 | HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE), | |
240 | HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE), | |
241 | HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE), | |
242 | 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), | |
243 | HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE), | |
244 | HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE), | |
245 | HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE), | |
246 | 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), | |
247 | HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE), | |
248 | HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE), | |
249 | HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE), | |
250 | 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), | |
251 | HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE), | |
252 | HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE), | |
253 | 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), | |
254 | 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), | |
255 | 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), | |
256 | HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE), | |
257 | HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE), | |
258 | 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), | |
259 | 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), | |
260 | HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE), | |
261 | HOWTO(R_SPARC_TLS_DTPOFF64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",FALSE,0,MINUS_ONE,TRUE), | |
262 | HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE), | |
739f7f82 DM |
263 | 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), |
264 | HOWTO(R_SPARC_GOTDATA_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",FALSE,0,0x003fffff, FALSE), | |
265 | HOWTO(R_SPARC_GOTDATA_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",FALSE,0,0x000003ff, FALSE), | |
266 | HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",FALSE,0,0x003fffff, FALSE), | |
267 | HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",FALSE,0,0x000003ff, FALSE), | |
268 | 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), | |
22b75d0a | 269 | }; |
d0c9aeb3 DM |
270 | static reloc_howto_type sparc_jmp_irel_howto = |
271 | 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); | |
272 | static reloc_howto_type sparc_irelative_howto = | |
273 | HOWTO(R_SPARC_IRELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_IRELATIVE",FALSE,0,0x00000000,TRUE); | |
22b75d0a DM |
274 | static reloc_howto_type sparc_vtinherit_howto = |
275 | HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE); | |
276 | static reloc_howto_type sparc_vtentry_howto = | |
277 | HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", FALSE,0,0, FALSE); | |
278 | static reloc_howto_type sparc_rev32_howto = | |
279 | HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE); | |
280 | ||
22b75d0a DM |
281 | reloc_howto_type * |
282 | _bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
283 | bfd_reloc_code_real_type code) | |
284 | { | |
679b7c76 DM |
285 | /* We explicitly handle each relocation type in the switch |
286 | instead of using a lookup table for efficiency. */ | |
22b75d0a DM |
287 | switch (code) |
288 | { | |
679b7c76 DM |
289 | case BFD_RELOC_NONE: |
290 | return &_bfd_sparc_elf_howto_table[R_SPARC_NONE]; | |
291 | ||
292 | case BFD_RELOC_8: | |
293 | return &_bfd_sparc_elf_howto_table[R_SPARC_8]; | |
294 | ||
295 | case BFD_RELOC_16: | |
296 | return &_bfd_sparc_elf_howto_table[R_SPARC_16]; | |
297 | ||
298 | case BFD_RELOC_32: | |
299 | return &_bfd_sparc_elf_howto_table[R_SPARC_32]; | |
300 | ||
301 | case BFD_RELOC_8_PCREL: | |
302 | return &_bfd_sparc_elf_howto_table[R_SPARC_DISP8]; | |
303 | ||
304 | case BFD_RELOC_16_PCREL: | |
305 | return &_bfd_sparc_elf_howto_table[R_SPARC_DISP16]; | |
306 | ||
307 | case BFD_RELOC_32_PCREL: | |
308 | return &_bfd_sparc_elf_howto_table[R_SPARC_DISP32]; | |
309 | ||
310 | case BFD_RELOC_32_PCREL_S2: | |
311 | return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP30]; | |
312 | ||
313 | case BFD_RELOC_SPARC_WDISP22: | |
314 | return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP22]; | |
315 | ||
316 | case BFD_RELOC_HI22: | |
317 | return &_bfd_sparc_elf_howto_table[R_SPARC_HI22]; | |
318 | ||
319 | case BFD_RELOC_SPARC22: | |
320 | return &_bfd_sparc_elf_howto_table[R_SPARC_22]; | |
321 | ||
322 | case BFD_RELOC_SPARC13: | |
323 | return &_bfd_sparc_elf_howto_table[R_SPARC_13]; | |
324 | ||
325 | case BFD_RELOC_LO10: | |
326 | return &_bfd_sparc_elf_howto_table[R_SPARC_LO10]; | |
327 | ||
328 | case BFD_RELOC_SPARC_GOT10: | |
329 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOT10]; | |
330 | ||
331 | case BFD_RELOC_SPARC_GOT13: | |
332 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOT13]; | |
333 | ||
334 | case BFD_RELOC_SPARC_GOT22: | |
335 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOT22]; | |
336 | ||
337 | case BFD_RELOC_SPARC_PC10: | |
338 | return &_bfd_sparc_elf_howto_table[R_SPARC_PC10]; | |
339 | ||
340 | case BFD_RELOC_SPARC_PC22: | |
341 | return &_bfd_sparc_elf_howto_table[R_SPARC_PC22]; | |
342 | ||
343 | case BFD_RELOC_SPARC_WPLT30: | |
344 | return &_bfd_sparc_elf_howto_table[R_SPARC_WPLT30]; | |
345 | ||
346 | case BFD_RELOC_SPARC_COPY: | |
347 | return &_bfd_sparc_elf_howto_table[R_SPARC_COPY]; | |
348 | ||
349 | case BFD_RELOC_SPARC_GLOB_DAT: | |
350 | return &_bfd_sparc_elf_howto_table[R_SPARC_GLOB_DAT]; | |
351 | ||
352 | case BFD_RELOC_SPARC_JMP_SLOT: | |
353 | return &_bfd_sparc_elf_howto_table[R_SPARC_JMP_SLOT]; | |
354 | ||
355 | case BFD_RELOC_SPARC_RELATIVE: | |
356 | return &_bfd_sparc_elf_howto_table[R_SPARC_RELATIVE]; | |
357 | ||
358 | case BFD_RELOC_SPARC_UA32: | |
359 | return &_bfd_sparc_elf_howto_table[R_SPARC_UA32]; | |
360 | ||
361 | case BFD_RELOC_SPARC_PLT32: | |
362 | return &_bfd_sparc_elf_howto_table[R_SPARC_PLT32]; | |
363 | ||
364 | case BFD_RELOC_SPARC_10: | |
365 | return &_bfd_sparc_elf_howto_table[R_SPARC_10]; | |
366 | ||
367 | case BFD_RELOC_SPARC_11: | |
368 | return &_bfd_sparc_elf_howto_table[R_SPARC_11]; | |
369 | ||
370 | case BFD_RELOC_SPARC_64: | |
371 | return &_bfd_sparc_elf_howto_table[R_SPARC_64]; | |
372 | ||
373 | case BFD_RELOC_SPARC_OLO10: | |
374 | return &_bfd_sparc_elf_howto_table[R_SPARC_OLO10]; | |
375 | ||
376 | case BFD_RELOC_SPARC_HH22: | |
377 | return &_bfd_sparc_elf_howto_table[R_SPARC_HH22]; | |
378 | ||
379 | case BFD_RELOC_SPARC_HM10: | |
380 | return &_bfd_sparc_elf_howto_table[R_SPARC_HM10]; | |
381 | ||
382 | case BFD_RELOC_SPARC_LM22: | |
383 | return &_bfd_sparc_elf_howto_table[R_SPARC_LM22]; | |
384 | ||
385 | case BFD_RELOC_SPARC_PC_HH22: | |
386 | return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HH22]; | |
387 | ||
388 | case BFD_RELOC_SPARC_PC_HM10: | |
389 | return &_bfd_sparc_elf_howto_table[R_SPARC_PC_HM10]; | |
390 | ||
391 | case BFD_RELOC_SPARC_PC_LM22: | |
392 | return &_bfd_sparc_elf_howto_table[R_SPARC_PC_LM22]; | |
393 | ||
394 | case BFD_RELOC_SPARC_WDISP16: | |
395 | return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP16]; | |
396 | ||
397 | case BFD_RELOC_SPARC_WDISP19: | |
398 | return &_bfd_sparc_elf_howto_table[R_SPARC_WDISP19]; | |
399 | ||
400 | case BFD_RELOC_SPARC_7: | |
401 | return &_bfd_sparc_elf_howto_table[R_SPARC_7]; | |
402 | ||
403 | case BFD_RELOC_SPARC_5: | |
404 | return &_bfd_sparc_elf_howto_table[R_SPARC_5]; | |
405 | ||
406 | case BFD_RELOC_SPARC_6: | |
407 | return &_bfd_sparc_elf_howto_table[R_SPARC_6]; | |
408 | ||
409 | case BFD_RELOC_SPARC_DISP64: | |
410 | return &_bfd_sparc_elf_howto_table[R_SPARC_DISP64]; | |
411 | ||
412 | case BFD_RELOC_SPARC_PLT64: | |
413 | return &_bfd_sparc_elf_howto_table[R_SPARC_PLT64]; | |
414 | ||
415 | case BFD_RELOC_SPARC_HIX22: | |
416 | return &_bfd_sparc_elf_howto_table[R_SPARC_HIX22]; | |
417 | ||
418 | case BFD_RELOC_SPARC_LOX10: | |
419 | return &_bfd_sparc_elf_howto_table[R_SPARC_LOX10]; | |
420 | ||
421 | case BFD_RELOC_SPARC_H44: | |
422 | return &_bfd_sparc_elf_howto_table[R_SPARC_H44]; | |
423 | ||
424 | case BFD_RELOC_SPARC_M44: | |
425 | return &_bfd_sparc_elf_howto_table[R_SPARC_M44]; | |
426 | ||
427 | case BFD_RELOC_SPARC_L44: | |
428 | return &_bfd_sparc_elf_howto_table[R_SPARC_L44]; | |
429 | ||
430 | case BFD_RELOC_SPARC_REGISTER: | |
431 | return &_bfd_sparc_elf_howto_table[R_SPARC_REGISTER]; | |
432 | ||
433 | case BFD_RELOC_SPARC_UA64: | |
434 | return &_bfd_sparc_elf_howto_table[R_SPARC_UA64]; | |
435 | ||
436 | case BFD_RELOC_SPARC_UA16: | |
437 | return &_bfd_sparc_elf_howto_table[R_SPARC_UA16]; | |
438 | ||
439 | case BFD_RELOC_SPARC_TLS_GD_HI22: | |
440 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_HI22]; | |
441 | ||
442 | case BFD_RELOC_SPARC_TLS_GD_LO10: | |
443 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_LO10]; | |
444 | ||
445 | case BFD_RELOC_SPARC_TLS_GD_ADD: | |
446 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_ADD]; | |
447 | ||
448 | case BFD_RELOC_SPARC_TLS_GD_CALL: | |
449 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_GD_CALL]; | |
450 | ||
451 | case BFD_RELOC_SPARC_TLS_LDM_HI22: | |
452 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_HI22]; | |
453 | ||
454 | case BFD_RELOC_SPARC_TLS_LDM_LO10: | |
455 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_LO10]; | |
456 | ||
457 | case BFD_RELOC_SPARC_TLS_LDM_ADD: | |
458 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_ADD]; | |
459 | ||
460 | case BFD_RELOC_SPARC_TLS_LDM_CALL: | |
461 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDM_CALL]; | |
462 | ||
463 | case BFD_RELOC_SPARC_TLS_LDO_HIX22: | |
464 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_HIX22]; | |
465 | ||
466 | case BFD_RELOC_SPARC_TLS_LDO_LOX10: | |
467 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_LOX10]; | |
468 | ||
469 | case BFD_RELOC_SPARC_TLS_LDO_ADD: | |
470 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LDO_ADD]; | |
471 | ||
472 | case BFD_RELOC_SPARC_TLS_IE_HI22: | |
473 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_HI22]; | |
474 | ||
475 | case BFD_RELOC_SPARC_TLS_IE_LO10: | |
476 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LO10]; | |
477 | ||
478 | case BFD_RELOC_SPARC_TLS_IE_LD: | |
479 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LD]; | |
480 | ||
481 | case BFD_RELOC_SPARC_TLS_IE_LDX: | |
482 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_LDX]; | |
483 | ||
484 | case BFD_RELOC_SPARC_TLS_IE_ADD: | |
485 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_IE_ADD]; | |
486 | ||
487 | case BFD_RELOC_SPARC_TLS_LE_HIX22: | |
488 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_HIX22]; | |
489 | ||
490 | case BFD_RELOC_SPARC_TLS_LE_LOX10: | |
491 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_LE_LOX10]; | |
492 | ||
493 | case BFD_RELOC_SPARC_TLS_DTPMOD32: | |
494 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD32]; | |
495 | ||
496 | case BFD_RELOC_SPARC_TLS_DTPMOD64: | |
497 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPMOD64]; | |
498 | ||
499 | case BFD_RELOC_SPARC_TLS_DTPOFF32: | |
500 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF32]; | |
501 | ||
502 | case BFD_RELOC_SPARC_TLS_DTPOFF64: | |
503 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_DTPOFF64]; | |
504 | ||
505 | case BFD_RELOC_SPARC_TLS_TPOFF32: | |
506 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF32]; | |
507 | ||
508 | case BFD_RELOC_SPARC_TLS_TPOFF64: | |
509 | return &_bfd_sparc_elf_howto_table[R_SPARC_TLS_TPOFF64]; | |
510 | ||
511 | case BFD_RELOC_SPARC_GOTDATA_HIX22: | |
512 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_HIX22]; | |
513 | ||
514 | case BFD_RELOC_SPARC_GOTDATA_LOX10: | |
515 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_LOX10]; | |
516 | ||
517 | case BFD_RELOC_SPARC_GOTDATA_OP_HIX22: | |
518 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_HIX22]; | |
519 | ||
520 | case BFD_RELOC_SPARC_GOTDATA_OP_LOX10: | |
521 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP_LOX10]; | |
522 | ||
523 | case BFD_RELOC_SPARC_GOTDATA_OP: | |
524 | return &_bfd_sparc_elf_howto_table[R_SPARC_GOTDATA_OP]; | |
525 | ||
d0c9aeb3 DM |
526 | case BFD_RELOC_SPARC_JMP_IREL: |
527 | return &sparc_jmp_irel_howto; | |
528 | ||
529 | case BFD_RELOC_SPARC_IRELATIVE: | |
530 | return &sparc_irelative_howto; | |
531 | ||
22b75d0a DM |
532 | case BFD_RELOC_VTABLE_INHERIT: |
533 | return &sparc_vtinherit_howto; | |
534 | ||
535 | case BFD_RELOC_VTABLE_ENTRY: | |
536 | return &sparc_vtentry_howto; | |
537 | ||
538 | case BFD_RELOC_SPARC_REV32: | |
539 | return &sparc_rev32_howto; | |
540 | ||
541 | default: | |
679b7c76 | 542 | break; |
22b75d0a DM |
543 | } |
544 | bfd_set_error (bfd_error_bad_value); | |
545 | return NULL; | |
546 | } | |
547 | ||
157090f7 AM |
548 | reloc_howto_type * |
549 | _bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
550 | const char *r_name) | |
551 | { | |
552 | unsigned int i; | |
553 | ||
554 | for (i = 0; | |
555 | i < (sizeof (_bfd_sparc_elf_howto_table) | |
556 | / sizeof (_bfd_sparc_elf_howto_table[0])); | |
557 | i++) | |
558 | if (_bfd_sparc_elf_howto_table[i].name != NULL | |
559 | && strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0) | |
560 | return &_bfd_sparc_elf_howto_table[i]; | |
561 | ||
562 | if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0) | |
563 | return &sparc_vtinherit_howto; | |
564 | if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0) | |
565 | return &sparc_vtentry_howto; | |
566 | if (strcasecmp (sparc_rev32_howto.name, r_name) == 0) | |
567 | return &sparc_rev32_howto; | |
568 | ||
569 | return NULL; | |
570 | } | |
571 | ||
22b75d0a DM |
572 | reloc_howto_type * |
573 | _bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type) | |
574 | { | |
575 | switch (r_type) | |
576 | { | |
d0c9aeb3 DM |
577 | case R_SPARC_JMP_IREL: |
578 | return &sparc_jmp_irel_howto; | |
579 | ||
580 | case R_SPARC_IRELATIVE: | |
581 | return &sparc_irelative_howto; | |
582 | ||
22b75d0a DM |
583 | case R_SPARC_GNU_VTINHERIT: |
584 | return &sparc_vtinherit_howto; | |
585 | ||
586 | case R_SPARC_GNU_VTENTRY: | |
587 | return &sparc_vtentry_howto; | |
588 | ||
589 | case R_SPARC_REV32: | |
590 | return &sparc_rev32_howto; | |
591 | ||
592 | default: | |
d0fb9a8d JJ |
593 | if (r_type >= (unsigned int) R_SPARC_max_std) |
594 | { | |
595 | (*_bfd_error_handler) (_("invalid relocation type %d"), | |
596 | (int) r_type); | |
597 | r_type = R_SPARC_NONE; | |
598 | } | |
22b75d0a DM |
599 | return &_bfd_sparc_elf_howto_table[r_type]; |
600 | } | |
601 | } | |
602 | ||
603 | /* Both 32-bit and 64-bit sparc encode this in an identical manner, | |
604 | so just take advantage of that. */ | |
605 | #define SPARC_ELF_R_TYPE(r_info) \ | |
606 | ((r_info) & 0xff) | |
607 | ||
608 | void | |
609 | _bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, | |
610 | Elf_Internal_Rela *dst) | |
611 | { | |
612 | unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info); | |
613 | ||
614 | cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type); | |
615 | } | |
616 | \f | |
617 | ||
618 | /* The nop opcode we use. */ | |
619 | #define SPARC_NOP 0x01000000 | |
620 | ||
621 | #define SPARC_INSN_BYTES 4 | |
622 | ||
623 | /* The SPARC linker needs to keep track of the number of relocs that it | |
624 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
625 | This is so that it can later discard them if they are found to be | |
626 | unnecessary. We store the information in a field extending the | |
627 | regular ELF linker hash table. */ | |
628 | ||
629 | struct _bfd_sparc_elf_dyn_relocs | |
630 | { | |
631 | struct _bfd_sparc_elf_dyn_relocs *next; | |
632 | ||
633 | /* The input section of the reloc. */ | |
634 | asection *sec; | |
635 | ||
636 | /* Total number of relocs copied for the input section. */ | |
637 | bfd_size_type count; | |
638 | ||
639 | /* Number of pc-relative relocs copied for the input section. */ | |
640 | bfd_size_type pc_count; | |
641 | }; | |
642 | ||
643 | /* SPARC ELF linker hash entry. */ | |
644 | ||
645 | struct _bfd_sparc_elf_link_hash_entry | |
646 | { | |
647 | struct elf_link_hash_entry elf; | |
648 | ||
649 | /* Track dynamic relocs copied for this symbol. */ | |
650 | struct _bfd_sparc_elf_dyn_relocs *dyn_relocs; | |
651 | ||
652 | #define GOT_UNKNOWN 0 | |
653 | #define GOT_NORMAL 1 | |
654 | #define GOT_TLS_GD 2 | |
655 | #define GOT_TLS_IE 3 | |
656 | unsigned char tls_type; | |
657 | }; | |
658 | ||
659 | #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent)) | |
660 | ||
661 | struct _bfd_sparc_elf_obj_tdata | |
662 | { | |
663 | struct elf_obj_tdata root; | |
664 | ||
665 | /* tls_type for each local got entry. */ | |
666 | char *local_got_tls_type; | |
667 | ||
668 | /* TRUE if TLS GD relocs has been seen for this object. */ | |
669 | bfd_boolean has_tlsgd; | |
670 | }; | |
671 | ||
672 | #define _bfd_sparc_elf_tdata(abfd) \ | |
673 | ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any) | |
674 | ||
675 | #define _bfd_sparc_elf_local_got_tls_type(abfd) \ | |
676 | (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type) | |
677 | ||
0ffa91dd NC |
678 | #define is_sparc_elf(bfd) \ |
679 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
680 | && elf_tdata (bfd) != NULL \ | |
4dfe6ac6 | 681 | && elf_object_id (bfd) == SPARC_ELF_DATA) |
0ffa91dd | 682 | |
22b75d0a DM |
683 | bfd_boolean |
684 | _bfd_sparc_elf_mkobject (bfd *abfd) | |
685 | { | |
0ffa91dd | 686 | return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata), |
4dfe6ac6 | 687 | SPARC_ELF_DATA); |
22b75d0a DM |
688 | } |
689 | ||
690 | static void | |
91d6fa6a | 691 | sparc_put_word_32 (bfd *abfd, bfd_vma val, void *ptr) |
22b75d0a | 692 | { |
91d6fa6a | 693 | bfd_put_32 (abfd, val, ptr); |
22b75d0a DM |
694 | } |
695 | ||
696 | static void | |
91d6fa6a | 697 | sparc_put_word_64 (bfd *abfd, bfd_vma val, void *ptr) |
22b75d0a | 698 | { |
91d6fa6a | 699 | bfd_put_64 (abfd, val, ptr); |
22b75d0a DM |
700 | } |
701 | ||
702 | static void | |
39817122 | 703 | sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel) |
22b75d0a | 704 | { |
39817122 RS |
705 | const struct elf_backend_data *bed; |
706 | bfd_byte *loc; | |
22b75d0a | 707 | |
39817122 RS |
708 | bed = get_elf_backend_data (abfd); |
709 | loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela); | |
710 | bed->s->swap_reloca_out (abfd, rel, loc); | |
22b75d0a DM |
711 | } |
712 | ||
713 | static bfd_vma | |
e459dc7b | 714 | sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED, |
91d6fa6a | 715 | bfd_vma rel_index ATTRIBUTE_UNUSED, |
e459dc7b | 716 | bfd_vma type ATTRIBUTE_UNUSED) |
22b75d0a | 717 | { |
91d6fa6a | 718 | return ELF64_R_INFO (rel_index, |
22b75d0a DM |
719 | (in_rel ? |
720 | ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info), | |
721 | type) : type)); | |
722 | } | |
723 | ||
724 | static bfd_vma | |
725 | sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED, | |
91d6fa6a | 726 | bfd_vma rel_index, bfd_vma type) |
22b75d0a | 727 | { |
91d6fa6a | 728 | return ELF32_R_INFO (rel_index, type); |
22b75d0a DM |
729 | } |
730 | ||
731 | static bfd_vma | |
732 | sparc_elf_r_symndx_64 (bfd_vma r_info) | |
733 | { | |
e8be8da4 DM |
734 | bfd_vma r_symndx = ELF32_R_SYM (r_info); |
735 | return (r_symndx >> 24); | |
22b75d0a DM |
736 | } |
737 | ||
738 | static bfd_vma | |
739 | sparc_elf_r_symndx_32 (bfd_vma r_info) | |
740 | { | |
741 | return ELF32_R_SYM (r_info); | |
742 | } | |
743 | ||
744 | /* PLT/GOT stuff */ | |
745 | ||
746 | #define PLT32_ENTRY_SIZE 12 | |
747 | #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE) | |
748 | ||
749 | /* The first four entries in a 32-bit procedure linkage table are reserved, | |
750 | and the initial contents are unimportant (we zero them out). | |
751 | Subsequent entries look like this. See the SVR4 ABI SPARC | |
752 | supplement to see how this works. */ | |
753 | ||
754 | /* sethi %hi(.-.plt0),%g1. We fill in the address later. */ | |
755 | #define PLT32_ENTRY_WORD0 0x03000000 | |
756 | /* b,a .plt0. We fill in the offset later. */ | |
757 | #define PLT32_ENTRY_WORD1 0x30800000 | |
758 | /* nop. */ | |
759 | #define PLT32_ENTRY_WORD2 SPARC_NOP | |
760 | ||
761 | static int | |
762 | sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset, | |
763 | bfd_vma max ATTRIBUTE_UNUSED, | |
764 | bfd_vma *r_offset) | |
765 | { | |
766 | bfd_put_32 (output_bfd, | |
767 | PLT32_ENTRY_WORD0 + offset, | |
768 | splt->contents + offset); | |
769 | bfd_put_32 (output_bfd, | |
770 | (PLT32_ENTRY_WORD1 | |
771 | + (((- (offset + 4)) >> 2) & 0x3fffff)), | |
772 | splt->contents + offset + 4); | |
773 | bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2, | |
774 | splt->contents + offset + 8); | |
775 | ||
776 | *r_offset = offset; | |
777 | ||
778 | return offset / PLT32_ENTRY_SIZE - 4; | |
779 | } | |
780 | ||
781 | /* Both the headers and the entries are icache aligned. */ | |
782 | #define PLT64_ENTRY_SIZE 32 | |
783 | #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE) | |
784 | #define PLT64_LARGE_THRESHOLD 32768 | |
785 | ||
786 | static int | |
787 | sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset, | |
788 | bfd_vma max, bfd_vma *r_offset) | |
789 | { | |
790 | unsigned char *entry = splt->contents + offset; | |
791 | const unsigned int nop = SPARC_NOP; | |
91d6fa6a | 792 | int plt_index; |
22b75d0a DM |
793 | |
794 | if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)) | |
795 | { | |
796 | unsigned int sethi, ba; | |
797 | ||
798 | *r_offset = offset; | |
799 | ||
91d6fa6a | 800 | plt_index = (offset / PLT64_ENTRY_SIZE); |
22b75d0a | 801 | |
91d6fa6a | 802 | sethi = 0x03000000 | (plt_index * PLT64_ENTRY_SIZE); |
22b75d0a DM |
803 | ba = 0x30680000 |
804 | | (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff); | |
805 | ||
806 | bfd_put_32 (output_bfd, (bfd_vma) sethi, entry); | |
807 | bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4); | |
808 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8); | |
809 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12); | |
810 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16); | |
811 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20); | |
812 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24); | |
813 | bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28); | |
814 | } | |
815 | else | |
816 | { | |
817 | unsigned char *ptr; | |
818 | unsigned int ldx; | |
819 | int block, last_block, ofs, last_ofs, chunks_this_block; | |
820 | const int insn_chunk_size = (6 * 4); | |
821 | const int ptr_chunk_size = (1 * 8); | |
822 | const int entries_per_block = 160; | |
823 | const int block_size = entries_per_block * (insn_chunk_size | |
824 | + ptr_chunk_size); | |
825 | ||
826 | /* Entries 32768 and higher are grouped into blocks of 160. | |
827 | The blocks are further subdivided into 160 sequences of | |
828 | 6 instructions and 160 pointers. If a block does not require | |
829 | the full 160 entries, let's say it requires N, then there | |
830 | will be N sequences of 6 instructions and N pointers. */ | |
831 | ||
832 | offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE); | |
833 | max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE); | |
834 | ||
835 | block = offset / block_size; | |
836 | last_block = max / block_size; | |
837 | if (block != last_block) | |
838 | { | |
839 | chunks_this_block = 160; | |
840 | } | |
841 | else | |
842 | { | |
843 | last_ofs = max % block_size; | |
844 | chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size); | |
845 | } | |
846 | ||
847 | ofs = offset % block_size; | |
848 | ||
91d6fa6a | 849 | plt_index = (PLT64_LARGE_THRESHOLD + |
22b75d0a DM |
850 | (block * 160) + |
851 | (ofs / insn_chunk_size)); | |
852 | ||
853 | ptr = splt->contents | |
854 | + (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE) | |
855 | + (block * block_size) | |
856 | + (chunks_this_block * insn_chunk_size) | |
857 | + (ofs / insn_chunk_size) * ptr_chunk_size; | |
858 | ||
859 | *r_offset = (bfd_vma) (ptr - splt->contents); | |
860 | ||
861 | ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff); | |
862 | ||
863 | /* mov %o7,%g5 | |
864 | call .+8 | |
865 | nop | |
866 | ldx [%o7+P],%g1 | |
867 | jmpl %o7+%g1,%g1 | |
868 | mov %g5,%o7 */ | |
869 | bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry); | |
870 | bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4); | |
871 | bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8); | |
872 | bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12); | |
873 | bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16); | |
874 | bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20); | |
875 | ||
876 | bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr); | |
877 | } | |
878 | ||
91d6fa6a | 879 | return plt_index - 4; |
22b75d0a DM |
880 | } |
881 | ||
910600e9 RS |
882 | /* The format of the first PLT entry in a VxWorks executable. */ |
883 | static const bfd_vma sparc_vxworks_exec_plt0_entry[] = | |
884 | { | |
885 | 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */ | |
886 | 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */ | |
887 | 0xc4008000, /* ld [ %g2 ], %g2 */ | |
888 | 0x81c08000, /* jmp %g2 */ | |
889 | 0x01000000 /* nop */ | |
890 | }; | |
891 | ||
892 | /* The format of subsequent PLT entries. */ | |
893 | static const bfd_vma sparc_vxworks_exec_plt_entry[] = | |
894 | { | |
895 | 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */ | |
896 | 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */ | |
897 | 0xc2004000, /* ld [ %g1 ], %g1 */ | |
898 | 0x81c04000, /* jmp %g1 */ | |
899 | 0x01000000, /* nop */ | |
900 | 0x03000000, /* sethi %hi(f@pltindex), %g1 */ | |
901 | 0x10800000, /* b _PLT_resolve */ | |
902 | 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */ | |
903 | }; | |
904 | ||
905 | /* The format of the first PLT entry in a VxWorks shared object. */ | |
906 | static const bfd_vma sparc_vxworks_shared_plt0_entry[] = | |
907 | { | |
908 | 0xc405e008, /* ld [ %l7 + 8 ], %g2 */ | |
909 | 0x81c08000, /* jmp %g2 */ | |
910 | 0x01000000 /* nop */ | |
911 | }; | |
912 | ||
913 | /* The format of subsequent PLT entries. */ | |
914 | static const bfd_vma sparc_vxworks_shared_plt_entry[] = | |
915 | { | |
916 | 0x03000000, /* sethi %hi(f@got), %g1 */ | |
917 | 0x82106000, /* or %g1, %lo(f@got), %g1 */ | |
918 | 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */ | |
919 | 0x81c04000, /* jmp %g1 */ | |
920 | 0x01000000, /* nop */ | |
921 | 0x03000000, /* sethi %hi(f@pltindex), %g1 */ | |
922 | 0x10800000, /* b _PLT_resolve */ | |
923 | 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */ | |
924 | }; | |
925 | ||
22b75d0a DM |
926 | #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \ |
927 | htab->put_word(bfd, val, ptr) | |
928 | ||
22b75d0a DM |
929 | #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \ |
930 | htab->r_info(in_rel, index, type) | |
931 | ||
932 | #define SPARC_ELF_R_SYMNDX(htab, r_info) \ | |
933 | htab->r_symndx(r_info) | |
934 | ||
935 | #define SPARC_ELF_WORD_BYTES(htab) \ | |
936 | htab->bytes_per_word | |
937 | ||
938 | #define SPARC_ELF_RELA_BYTES(htab) \ | |
939 | htab->bytes_per_rela | |
940 | ||
941 | #define SPARC_ELF_DTPOFF_RELOC(htab) \ | |
942 | htab->dtpoff_reloc | |
943 | ||
944 | #define SPARC_ELF_DTPMOD_RELOC(htab) \ | |
945 | htab->dtpmod_reloc | |
946 | ||
947 | #define SPARC_ELF_TPOFF_RELOC(htab) \ | |
948 | htab->tpoff_reloc | |
949 | ||
950 | #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \ | |
951 | htab->build_plt_entry (obfd, splt, off, max, r_off) | |
952 | ||
953 | /* Create an entry in an SPARC ELF linker hash table. */ | |
954 | ||
955 | static struct bfd_hash_entry * | |
956 | link_hash_newfunc (struct bfd_hash_entry *entry, | |
957 | struct bfd_hash_table *table, const char *string) | |
958 | { | |
959 | /* Allocate the structure if it has not already been allocated by a | |
960 | subclass. */ | |
961 | if (entry == NULL) | |
962 | { | |
963 | entry = bfd_hash_allocate (table, | |
964 | sizeof (struct _bfd_sparc_elf_link_hash_entry)); | |
965 | if (entry == NULL) | |
966 | return entry; | |
967 | } | |
968 | ||
969 | /* Call the allocation method of the superclass. */ | |
970 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
971 | if (entry != NULL) | |
972 | { | |
973 | struct _bfd_sparc_elf_link_hash_entry *eh; | |
974 | ||
975 | eh = (struct _bfd_sparc_elf_link_hash_entry *) entry; | |
976 | eh->dyn_relocs = NULL; | |
977 | eh->tls_type = GOT_UNKNOWN; | |
978 | } | |
979 | ||
980 | return entry; | |
981 | } | |
982 | ||
983 | /* The name of the dynamic interpreter. This is put in the .interp | |
984 | section. */ | |
985 | ||
986 | #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
987 | #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1" | |
988 | ||
d0c9aeb3 DM |
989 | /* Compute a hash of a local hash entry. We use elf_link_hash_entry |
990 | for local symbol so that we can handle local STT_GNU_IFUNC symbols | |
991 | as global symbol. We reuse indx and dynstr_index for local symbol | |
992 | hash since they aren't used by global symbols in this backend. */ | |
993 | ||
994 | static hashval_t | |
995 | elf_sparc_local_htab_hash (const void *ptr) | |
996 | { | |
997 | struct elf_link_hash_entry *h | |
998 | = (struct elf_link_hash_entry *) ptr; | |
999 | return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index); | |
1000 | } | |
1001 | ||
1002 | /* Compare local hash entries. */ | |
1003 | ||
1004 | static int | |
1005 | elf_sparc_local_htab_eq (const void *ptr1, const void *ptr2) | |
1006 | { | |
1007 | struct elf_link_hash_entry *h1 | |
1008 | = (struct elf_link_hash_entry *) ptr1; | |
1009 | struct elf_link_hash_entry *h2 | |
1010 | = (struct elf_link_hash_entry *) ptr2; | |
1011 | ||
1012 | return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index; | |
1013 | } | |
1014 | ||
1015 | /* Find and/or create a hash entry for local symbol. */ | |
1016 | ||
1017 | static struct elf_link_hash_entry * | |
1018 | elf_sparc_get_local_sym_hash (struct _bfd_sparc_elf_link_hash_table *htab, | |
1019 | bfd *abfd, const Elf_Internal_Rela *rel, | |
1020 | bfd_boolean create) | |
1021 | { | |
1022 | struct _bfd_sparc_elf_link_hash_entry e, *ret; | |
1023 | asection *sec = abfd->sections; | |
1024 | unsigned long r_symndx; | |
1025 | hashval_t h; | |
1026 | void **slot; | |
1027 | ||
1028 | r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info); | |
1029 | h = ELF_LOCAL_SYMBOL_HASH (sec->id, r_symndx); | |
1030 | ||
1031 | e.elf.indx = sec->id; | |
1032 | e.elf.dynstr_index = r_symndx; | |
1033 | slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h, | |
1034 | create ? INSERT : NO_INSERT); | |
1035 | ||
1036 | if (!slot) | |
1037 | return NULL; | |
1038 | ||
1039 | if (*slot) | |
1040 | { | |
1041 | ret = (struct _bfd_sparc_elf_link_hash_entry *) *slot; | |
1042 | return &ret->elf; | |
1043 | } | |
1044 | ||
1045 | ret = (struct _bfd_sparc_elf_link_hash_entry *) | |
1046 | objalloc_alloc ((struct objalloc *) htab->loc_hash_memory, | |
1047 | sizeof (struct _bfd_sparc_elf_link_hash_entry)); | |
1048 | if (ret) | |
1049 | { | |
1050 | memset (ret, 0, sizeof (*ret)); | |
1051 | ret->elf.indx = sec->id; | |
1052 | ret->elf.dynstr_index = r_symndx; | |
1053 | ret->elf.dynindx = -1; | |
1054 | ret->elf.plt.offset = (bfd_vma) -1; | |
1055 | ret->elf.got.offset = (bfd_vma) -1; | |
1056 | *slot = ret; | |
1057 | } | |
1058 | return &ret->elf; | |
1059 | } | |
1060 | ||
22b75d0a DM |
1061 | /* Create a SPARC ELF linker hash table. */ |
1062 | ||
1063 | struct bfd_link_hash_table * | |
1064 | _bfd_sparc_elf_link_hash_table_create (bfd *abfd) | |
1065 | { | |
1066 | struct _bfd_sparc_elf_link_hash_table *ret; | |
1067 | bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table); | |
1068 | ||
1069 | ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt); | |
1070 | if (ret == NULL) | |
1071 | return NULL; | |
1072 | ||
1073 | if (ABI_64_P (abfd)) | |
1074 | { | |
1075 | ret->put_word = sparc_put_word_64; | |
22b75d0a DM |
1076 | ret->r_info = sparc_elf_r_info_64; |
1077 | ret->r_symndx = sparc_elf_r_symndx_64; | |
22b75d0a DM |
1078 | ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64; |
1079 | ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64; | |
1080 | ret->tpoff_reloc = R_SPARC_TLS_TPOFF64; | |
1081 | ret->word_align_power = 3; | |
1082 | ret->align_power_max = 4; | |
1083 | ret->bytes_per_word = 8; | |
1084 | ret->bytes_per_rela = sizeof (Elf64_External_Rela); | |
c2e70a82 | 1085 | ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER; |
22b75d0a | 1086 | ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER; |
d0c9aeb3 DM |
1087 | |
1088 | ret->build_plt_entry = sparc64_plt_entry_build; | |
1089 | ret->plt_header_size = PLT64_HEADER_SIZE; | |
1090 | ret->plt_entry_size = PLT64_ENTRY_SIZE; | |
22b75d0a DM |
1091 | } |
1092 | else | |
1093 | { | |
1094 | ret->put_word = sparc_put_word_32; | |
22b75d0a DM |
1095 | ret->r_info = sparc_elf_r_info_32; |
1096 | ret->r_symndx = sparc_elf_r_symndx_32; | |
22b75d0a DM |
1097 | ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32; |
1098 | ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32; | |
1099 | ret->tpoff_reloc = R_SPARC_TLS_TPOFF32; | |
1100 | ret->word_align_power = 2; | |
1101 | ret->align_power_max = 3; | |
1102 | ret->bytes_per_word = 4; | |
1103 | ret->bytes_per_rela = sizeof (Elf32_External_Rela); | |
c2e70a82 | 1104 | ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER; |
22b75d0a | 1105 | ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER; |
d0c9aeb3 DM |
1106 | |
1107 | ret->build_plt_entry = sparc32_plt_entry_build; | |
1108 | ret->plt_header_size = PLT32_HEADER_SIZE; | |
1109 | ret->plt_entry_size = PLT32_ENTRY_SIZE; | |
22b75d0a DM |
1110 | } |
1111 | ||
66eb6687 | 1112 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc, |
4dfe6ac6 NC |
1113 | sizeof (struct _bfd_sparc_elf_link_hash_entry), |
1114 | SPARC_ELF_DATA)) | |
22b75d0a DM |
1115 | { |
1116 | free (ret); | |
1117 | return NULL; | |
1118 | } | |
1119 | ||
d0c9aeb3 DM |
1120 | ret->loc_hash_table = htab_try_create (1024, |
1121 | elf_sparc_local_htab_hash, | |
1122 | elf_sparc_local_htab_eq, | |
1123 | NULL); | |
1124 | ret->loc_hash_memory = objalloc_create (); | |
1125 | if (!ret->loc_hash_table || !ret->loc_hash_memory) | |
1126 | { | |
1127 | free (ret); | |
1128 | return NULL; | |
1129 | } | |
1130 | ||
22b75d0a DM |
1131 | return &ret->elf.root; |
1132 | } | |
1133 | ||
d0c9aeb3 DM |
1134 | /* Destroy a SPARC ELF linker hash table. */ |
1135 | ||
1136 | void | |
1137 | _bfd_sparc_elf_link_hash_table_free (struct bfd_link_hash_table *hash) | |
1138 | { | |
1139 | struct _bfd_sparc_elf_link_hash_table *htab | |
1140 | = (struct _bfd_sparc_elf_link_hash_table *) hash; | |
1141 | ||
1142 | if (htab->loc_hash_table) | |
1143 | htab_delete (htab->loc_hash_table); | |
1144 | if (htab->loc_hash_memory) | |
1145 | objalloc_free ((struct objalloc *) htab->loc_hash_memory); | |
1146 | _bfd_generic_link_hash_table_free (hash); | |
1147 | } | |
1148 | ||
22b75d0a DM |
1149 | /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and |
1150 | .rela.bss sections in DYNOBJ, and set up shortcuts to them in our | |
1151 | hash table. */ | |
1152 | ||
1153 | bfd_boolean | |
1154 | _bfd_sparc_elf_create_dynamic_sections (bfd *dynobj, | |
1155 | struct bfd_link_info *info) | |
1156 | { | |
1157 | struct _bfd_sparc_elf_link_hash_table *htab; | |
1158 | ||
1159 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 NC |
1160 | BFD_ASSERT (htab != NULL); |
1161 | ||
22b75d0a DM |
1162 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
1163 | return FALSE; | |
1164 | ||
22b75d0a DM |
1165 | htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss"); |
1166 | if (!info->shared) | |
1167 | htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
1168 | ||
910600e9 RS |
1169 | if (htab->is_vxworks) |
1170 | { | |
1171 | if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2)) | |
1172 | return FALSE; | |
1173 | if (info->shared) | |
1174 | { | |
1175 | htab->plt_header_size | |
1176 | = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); | |
1177 | htab->plt_entry_size | |
1178 | = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry); | |
1179 | } | |
1180 | else | |
1181 | { | |
1182 | htab->plt_header_size | |
1183 | = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry); | |
1184 | htab->plt_entry_size | |
1185 | = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry); | |
1186 | } | |
1187 | } | |
910600e9 | 1188 | |
72fbc6e5 | 1189 | if (!htab->elf.splt || !htab->elf.srelplt || !htab->sdynbss |
22b75d0a DM |
1190 | || (!info->shared && !htab->srelbss)) |
1191 | abort (); | |
1192 | ||
1193 | return TRUE; | |
1194 | } | |
1195 | ||
d0c9aeb3 DM |
1196 | static bfd_boolean |
1197 | create_ifunc_sections (bfd *abfd, struct bfd_link_info *info) | |
1198 | { | |
1199 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
1200 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
1201 | flagword flags, pltflags; | |
1202 | asection *s; | |
1203 | ||
1204 | if (htab->irelifunc != NULL || htab->iplt != NULL) | |
1205 | return TRUE; | |
1206 | ||
1207 | flags = bed->dynamic_sec_flags; | |
1208 | pltflags = flags | SEC_ALLOC | SEC_CODE | SEC_LOAD; | |
1209 | ||
1210 | s = bfd_make_section_with_flags (abfd, ".iplt", pltflags); | |
1211 | if (s == NULL | |
1212 | || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) | |
1213 | return FALSE; | |
1214 | htab->iplt = s; | |
1215 | ||
1216 | s = bfd_make_section_with_flags (abfd, ".rela.iplt", | |
1217 | flags | SEC_READONLY); | |
1218 | if (s == NULL | |
1219 | || ! bfd_set_section_alignment (abfd, s, | |
1220 | bed->s->log_file_align)) | |
1221 | return FALSE; | |
1222 | htab->irelplt = s; | |
1223 | ||
1224 | return TRUE; | |
1225 | } | |
1226 | ||
22b75d0a DM |
1227 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
1228 | ||
1229 | void | |
fcfa13d2 | 1230 | _bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info, |
22b75d0a DM |
1231 | struct elf_link_hash_entry *dir, |
1232 | struct elf_link_hash_entry *ind) | |
1233 | { | |
1234 | struct _bfd_sparc_elf_link_hash_entry *edir, *eind; | |
1235 | ||
1236 | edir = (struct _bfd_sparc_elf_link_hash_entry *) dir; | |
1237 | eind = (struct _bfd_sparc_elf_link_hash_entry *) ind; | |
1238 | ||
1239 | if (eind->dyn_relocs != NULL) | |
1240 | { | |
1241 | if (edir->dyn_relocs != NULL) | |
1242 | { | |
1243 | struct _bfd_sparc_elf_dyn_relocs **pp; | |
1244 | struct _bfd_sparc_elf_dyn_relocs *p; | |
1245 | ||
fcfa13d2 | 1246 | /* Add reloc counts against the indirect sym to the direct sym |
22b75d0a DM |
1247 | list. Merge any entries against the same section. */ |
1248 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
1249 | { | |
1250 | struct _bfd_sparc_elf_dyn_relocs *q; | |
1251 | ||
1252 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
1253 | if (q->sec == p->sec) | |
1254 | { | |
1255 | q->pc_count += p->pc_count; | |
1256 | q->count += p->count; | |
1257 | *pp = p->next; | |
1258 | break; | |
1259 | } | |
1260 | if (q == NULL) | |
1261 | pp = &p->next; | |
1262 | } | |
1263 | *pp = edir->dyn_relocs; | |
1264 | } | |
1265 | ||
1266 | edir->dyn_relocs = eind->dyn_relocs; | |
1267 | eind->dyn_relocs = NULL; | |
1268 | } | |
1269 | ||
1270 | if (ind->root.type == bfd_link_hash_indirect | |
1271 | && dir->got.refcount <= 0) | |
1272 | { | |
1273 | edir->tls_type = eind->tls_type; | |
1274 | eind->tls_type = GOT_UNKNOWN; | |
1275 | } | |
fcfa13d2 | 1276 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
22b75d0a DM |
1277 | } |
1278 | ||
1279 | static int | |
1280 | sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd, | |
1281 | int r_type, int is_local) | |
1282 | { | |
1283 | if (! ABI_64_P (abfd) | |
1284 | && r_type == R_SPARC_TLS_GD_HI22 | |
1285 | && ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd) | |
1286 | r_type = R_SPARC_REV32; | |
1287 | ||
1288 | if (info->shared) | |
1289 | return r_type; | |
1290 | ||
1291 | switch (r_type) | |
1292 | { | |
1293 | case R_SPARC_TLS_GD_HI22: | |
1294 | if (is_local) | |
1295 | return R_SPARC_TLS_LE_HIX22; | |
1296 | return R_SPARC_TLS_IE_HI22; | |
1297 | case R_SPARC_TLS_GD_LO10: | |
1298 | if (is_local) | |
1299 | return R_SPARC_TLS_LE_LOX10; | |
1300 | return R_SPARC_TLS_IE_LO10; | |
1301 | case R_SPARC_TLS_IE_HI22: | |
1302 | if (is_local) | |
1303 | return R_SPARC_TLS_LE_HIX22; | |
1304 | return r_type; | |
1305 | case R_SPARC_TLS_IE_LO10: | |
1306 | if (is_local) | |
1307 | return R_SPARC_TLS_LE_LOX10; | |
1308 | return r_type; | |
1309 | case R_SPARC_TLS_LDM_HI22: | |
1310 | return R_SPARC_TLS_LE_HIX22; | |
1311 | case R_SPARC_TLS_LDM_LO10: | |
1312 | return R_SPARC_TLS_LE_LOX10; | |
1313 | } | |
1314 | ||
1315 | return r_type; | |
1316 | } | |
1317 | \f | |
1318 | /* Look through the relocs for a section during the first phase, and | |
1319 | allocate space in the global offset table or procedure linkage | |
1320 | table. */ | |
1321 | ||
1322 | bfd_boolean | |
1323 | _bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, | |
1324 | asection *sec, const Elf_Internal_Rela *relocs) | |
1325 | { | |
1326 | struct _bfd_sparc_elf_link_hash_table *htab; | |
1327 | Elf_Internal_Shdr *symtab_hdr; | |
1328 | struct elf_link_hash_entry **sym_hashes; | |
22b75d0a DM |
1329 | const Elf_Internal_Rela *rel; |
1330 | const Elf_Internal_Rela *rel_end; | |
1331 | asection *sreloc; | |
1332 | int num_relocs; | |
1333 | bfd_boolean checked_tlsgd = FALSE; | |
1334 | ||
1335 | if (info->relocatable) | |
1336 | return TRUE; | |
1337 | ||
1338 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 1339 | BFD_ASSERT (htab != NULL); |
0ffa91dd | 1340 | symtab_hdr = &elf_symtab_hdr (abfd); |
22b75d0a | 1341 | sym_hashes = elf_sym_hashes (abfd); |
22b75d0a DM |
1342 | |
1343 | sreloc = NULL; | |
1344 | ||
1345 | if (ABI_64_P (abfd)) | |
d4730f92 | 1346 | num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (sec)); |
22b75d0a DM |
1347 | else |
1348 | num_relocs = sec->reloc_count; | |
0ffa91dd NC |
1349 | |
1350 | BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0); | |
1351 | ||
d0c9aeb3 DM |
1352 | if (htab->elf.dynobj == NULL) |
1353 | htab->elf.dynobj = abfd; | |
1354 | if (!create_ifunc_sections (htab->elf.dynobj, info)) | |
1355 | return FALSE; | |
1356 | ||
22b75d0a DM |
1357 | rel_end = relocs + num_relocs; |
1358 | for (rel = relocs; rel < rel_end; rel++) | |
1359 | { | |
1360 | unsigned int r_type; | |
1361 | unsigned long r_symndx; | |
1362 | struct elf_link_hash_entry *h; | |
d0c9aeb3 | 1363 | Elf_Internal_Sym *isym; |
22b75d0a DM |
1364 | |
1365 | r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info); | |
1366 | r_type = SPARC_ELF_R_TYPE (rel->r_info); | |
1367 | ||
1368 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) | |
1369 | { | |
1370 | (*_bfd_error_handler) (_("%B: bad symbol index: %d"), | |
1371 | abfd, r_symndx); | |
1372 | return FALSE; | |
1373 | } | |
1374 | ||
d0c9aeb3 | 1375 | isym = NULL; |
22b75d0a | 1376 | if (r_symndx < symtab_hdr->sh_info) |
d0c9aeb3 DM |
1377 | { |
1378 | /* A local symbol. */ | |
1379 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
1380 | abfd, r_symndx); | |
1381 | if (isym == NULL) | |
1382 | return FALSE; | |
1383 | ||
1384 | /* Check relocation against local STT_GNU_IFUNC symbol. */ | |
1385 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
1386 | { | |
1387 | h = elf_sparc_get_local_sym_hash (htab, abfd, rel, | |
1388 | TRUE); | |
1389 | if (h == NULL) | |
1390 | return FALSE; | |
1391 | ||
1392 | /* Fake a STT_GNU_IFUNC symbol. */ | |
1393 | h->type = STT_GNU_IFUNC; | |
1394 | h->def_regular = 1; | |
1395 | h->ref_regular = 1; | |
1396 | h->forced_local = 1; | |
1397 | h->root.type = bfd_link_hash_defined; | |
1398 | } | |
1399 | else | |
1400 | h = NULL; | |
1401 | } | |
22b75d0a | 1402 | else |
973a3492 L |
1403 | { |
1404 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1405 | while (h->root.type == bfd_link_hash_indirect | |
1406 | || h->root.type == bfd_link_hash_warning) | |
1407 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1408 | } | |
22b75d0a | 1409 | |
d0c9aeb3 DM |
1410 | if (h && h->type == STT_GNU_IFUNC) |
1411 | { | |
1412 | if (h->def_regular) | |
b48ca1d4 DM |
1413 | { |
1414 | h->ref_regular = 1; | |
1415 | h->plt.refcount += 1; | |
1416 | } | |
d0c9aeb3 DM |
1417 | } |
1418 | ||
22b75d0a DM |
1419 | /* Compatibility with old R_SPARC_REV32 reloc conflicting |
1420 | with R_SPARC_TLS_GD_HI22. */ | |
1421 | if (! ABI_64_P (abfd) && ! checked_tlsgd) | |
1422 | switch (r_type) | |
1423 | { | |
1424 | case R_SPARC_TLS_GD_HI22: | |
1425 | { | |
1426 | const Elf_Internal_Rela *relt; | |
1427 | ||
1428 | for (relt = rel + 1; relt < rel_end; relt++) | |
1429 | if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10 | |
1430 | || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD | |
1431 | || ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL) | |
1432 | break; | |
1433 | checked_tlsgd = TRUE; | |
1434 | _bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end; | |
1435 | } | |
1436 | break; | |
1437 | case R_SPARC_TLS_GD_LO10: | |
1438 | case R_SPARC_TLS_GD_ADD: | |
1439 | case R_SPARC_TLS_GD_CALL: | |
1440 | checked_tlsgd = TRUE; | |
1441 | _bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE; | |
1442 | break; | |
1443 | } | |
1444 | ||
1445 | r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL); | |
1446 | switch (r_type) | |
1447 | { | |
1448 | case R_SPARC_TLS_LDM_HI22: | |
1449 | case R_SPARC_TLS_LDM_LO10: | |
1450 | htab->tls_ldm_got.refcount += 1; | |
1451 | break; | |
1452 | ||
1453 | case R_SPARC_TLS_LE_HIX22: | |
1454 | case R_SPARC_TLS_LE_LOX10: | |
1455 | if (info->shared) | |
1456 | goto r_sparc_plt32; | |
1457 | break; | |
1458 | ||
1459 | case R_SPARC_TLS_IE_HI22: | |
1460 | case R_SPARC_TLS_IE_LO10: | |
1461 | if (info->shared) | |
1462 | info->flags |= DF_STATIC_TLS; | |
1463 | /* Fall through */ | |
1464 | ||
1465 | case R_SPARC_GOT10: | |
1466 | case R_SPARC_GOT13: | |
1467 | case R_SPARC_GOT22: | |
739f7f82 DM |
1468 | case R_SPARC_GOTDATA_HIX22: |
1469 | case R_SPARC_GOTDATA_LOX10: | |
1470 | case R_SPARC_GOTDATA_OP_HIX22: | |
1471 | case R_SPARC_GOTDATA_OP_LOX10: | |
22b75d0a DM |
1472 | case R_SPARC_TLS_GD_HI22: |
1473 | case R_SPARC_TLS_GD_LO10: | |
1474 | /* This symbol requires a global offset table entry. */ | |
1475 | { | |
1476 | int tls_type, old_tls_type; | |
1477 | ||
1478 | switch (r_type) | |
1479 | { | |
1480 | default: | |
1481 | case R_SPARC_GOT10: | |
1482 | case R_SPARC_GOT13: | |
1483 | case R_SPARC_GOT22: | |
739f7f82 DM |
1484 | case R_SPARC_GOTDATA_OP_HIX22: |
1485 | case R_SPARC_GOTDATA_OP_LOX10: | |
22b75d0a DM |
1486 | tls_type = GOT_NORMAL; |
1487 | break; | |
1488 | case R_SPARC_TLS_GD_HI22: | |
1489 | case R_SPARC_TLS_GD_LO10: | |
1490 | tls_type = GOT_TLS_GD; | |
1491 | break; | |
1492 | case R_SPARC_TLS_IE_HI22: | |
1493 | case R_SPARC_TLS_IE_LO10: | |
1494 | tls_type = GOT_TLS_IE; | |
1495 | break; | |
1496 | } | |
1497 | ||
1498 | if (h != NULL) | |
1499 | { | |
1500 | h->got.refcount += 1; | |
1501 | old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type; | |
1502 | } | |
1503 | else | |
1504 | { | |
1505 | bfd_signed_vma *local_got_refcounts; | |
1506 | ||
1507 | /* This is a global offset table entry for a local symbol. */ | |
1508 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1509 | if (local_got_refcounts == NULL) | |
1510 | { | |
1511 | bfd_size_type size; | |
1512 | ||
1513 | size = symtab_hdr->sh_info; | |
1514 | size *= (sizeof (bfd_signed_vma) + sizeof(char)); | |
1515 | local_got_refcounts = ((bfd_signed_vma *) | |
1516 | bfd_zalloc (abfd, size)); | |
1517 | if (local_got_refcounts == NULL) | |
1518 | return FALSE; | |
1519 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
1520 | _bfd_sparc_elf_local_got_tls_type (abfd) | |
1521 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
1522 | } | |
00c50991 DM |
1523 | switch (r_type) |
1524 | { | |
1525 | case R_SPARC_GOTDATA_OP_HIX22: | |
1526 | case R_SPARC_GOTDATA_OP_LOX10: | |
1527 | break; | |
1528 | ||
1529 | default: | |
1530 | local_got_refcounts[r_symndx] += 1; | |
1531 | break; | |
1532 | } | |
22b75d0a DM |
1533 | old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx]; |
1534 | } | |
1535 | ||
1536 | /* If a TLS symbol is accessed using IE at least once, | |
1537 | there is no point to use dynamic model for it. */ | |
1538 | if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN | |
1539 | && (old_tls_type != GOT_TLS_GD | |
1540 | || tls_type != GOT_TLS_IE)) | |
1541 | { | |
1542 | if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD) | |
1543 | tls_type = old_tls_type; | |
1544 | else | |
1545 | { | |
1546 | (*_bfd_error_handler) | |
1547 | (_("%B: `%s' accessed both as normal and thread local symbol"), | |
1548 | abfd, h ? h->root.root.string : "<local>"); | |
1549 | return FALSE; | |
1550 | } | |
1551 | } | |
1552 | ||
1553 | if (old_tls_type != tls_type) | |
1554 | { | |
1555 | if (h != NULL) | |
1556 | _bfd_sparc_elf_hash_entry (h)->tls_type = tls_type; | |
1557 | else | |
1558 | _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
1559 | } | |
1560 | } | |
1561 | ||
72fbc6e5 | 1562 | if (htab->elf.sgot == NULL) |
22b75d0a | 1563 | { |
72fbc6e5 | 1564 | if (!_bfd_elf_create_got_section (htab->elf.dynobj, info)) |
22b75d0a DM |
1565 | return FALSE; |
1566 | } | |
1567 | break; | |
1568 | ||
1569 | case R_SPARC_TLS_GD_CALL: | |
1570 | case R_SPARC_TLS_LDM_CALL: | |
1571 | if (info->shared) | |
1572 | { | |
1573 | /* These are basically R_SPARC_TLS_WPLT30 relocs against | |
1574 | __tls_get_addr. */ | |
1575 | struct bfd_link_hash_entry *bh = NULL; | |
1576 | if (! _bfd_generic_link_add_one_symbol (info, abfd, | |
1577 | "__tls_get_addr", 0, | |
1578 | bfd_und_section_ptr, 0, | |
1579 | NULL, FALSE, FALSE, | |
1580 | &bh)) | |
1581 | return FALSE; | |
1582 | h = (struct elf_link_hash_entry *) bh; | |
1583 | } | |
1584 | else | |
1585 | break; | |
1586 | /* Fall through */ | |
1587 | ||
1588 | case R_SPARC_PLT32: | |
1589 | case R_SPARC_WPLT30: | |
1590 | case R_SPARC_HIPLT22: | |
1591 | case R_SPARC_LOPLT10: | |
1592 | case R_SPARC_PCPLT32: | |
1593 | case R_SPARC_PCPLT22: | |
1594 | case R_SPARC_PCPLT10: | |
1595 | case R_SPARC_PLT64: | |
1596 | /* This symbol requires a procedure linkage table entry. We | |
1597 | actually build the entry in adjust_dynamic_symbol, | |
1598 | because this might be a case of linking PIC code without | |
1599 | linking in any dynamic objects, in which case we don't | |
1600 | need to generate a procedure linkage table after all. */ | |
1601 | ||
1602 | if (h == NULL) | |
1603 | { | |
1604 | if (! ABI_64_P (abfd)) | |
1605 | { | |
1606 | /* The Solaris native assembler will generate a WPLT30 | |
1607 | reloc for a local symbol if you assemble a call from | |
1608 | one section to another when using -K pic. We treat | |
1609 | it as WDISP30. */ | |
1610 | if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32) | |
1611 | goto r_sparc_plt32; | |
1612 | break; | |
1613 | } | |
af1fb11f NC |
1614 | /* PR 7027: We need similar behaviour for 64-bit binaries. */ |
1615 | else if (r_type == R_SPARC_WPLT30) | |
1616 | break; | |
22b75d0a DM |
1617 | |
1618 | /* It does not make sense to have a procedure linkage | |
1619 | table entry for a local symbol. */ | |
1620 | bfd_set_error (bfd_error_bad_value); | |
1621 | return FALSE; | |
1622 | } | |
1623 | ||
1624 | h->needs_plt = 1; | |
1625 | ||
1626 | { | |
1627 | int this_r_type; | |
1628 | ||
1629 | this_r_type = SPARC_ELF_R_TYPE (rel->r_info); | |
1630 | if (this_r_type == R_SPARC_PLT32 | |
1631 | || this_r_type == R_SPARC_PLT64) | |
1632 | goto r_sparc_plt32; | |
1633 | } | |
1634 | h->plt.refcount += 1; | |
1635 | break; | |
1636 | ||
1637 | case R_SPARC_PC10: | |
1638 | case R_SPARC_PC22: | |
1639 | case R_SPARC_PC_HH22: | |
1640 | case R_SPARC_PC_HM10: | |
1641 | case R_SPARC_PC_LM22: | |
1642 | if (h != NULL) | |
1643 | h->non_got_ref = 1; | |
1644 | ||
1645 | if (h != NULL | |
1646 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1647 | break; | |
1648 | /* Fall through. */ | |
1649 | ||
1650 | case R_SPARC_DISP8: | |
1651 | case R_SPARC_DISP16: | |
1652 | case R_SPARC_DISP32: | |
1653 | case R_SPARC_DISP64: | |
1654 | case R_SPARC_WDISP30: | |
1655 | case R_SPARC_WDISP22: | |
1656 | case R_SPARC_WDISP19: | |
1657 | case R_SPARC_WDISP16: | |
1658 | case R_SPARC_8: | |
1659 | case R_SPARC_16: | |
1660 | case R_SPARC_32: | |
1661 | case R_SPARC_HI22: | |
1662 | case R_SPARC_22: | |
1663 | case R_SPARC_13: | |
1664 | case R_SPARC_LO10: | |
1665 | case R_SPARC_UA16: | |
1666 | case R_SPARC_UA32: | |
1667 | case R_SPARC_10: | |
1668 | case R_SPARC_11: | |
1669 | case R_SPARC_64: | |
1670 | case R_SPARC_OLO10: | |
1671 | case R_SPARC_HH22: | |
1672 | case R_SPARC_HM10: | |
1673 | case R_SPARC_LM22: | |
1674 | case R_SPARC_7: | |
1675 | case R_SPARC_5: | |
1676 | case R_SPARC_6: | |
1677 | case R_SPARC_HIX22: | |
1678 | case R_SPARC_LOX10: | |
1679 | case R_SPARC_H44: | |
1680 | case R_SPARC_M44: | |
1681 | case R_SPARC_L44: | |
1682 | case R_SPARC_UA64: | |
1683 | if (h != NULL) | |
1684 | h->non_got_ref = 1; | |
1685 | ||
1686 | r_sparc_plt32: | |
1687 | if (h != NULL && !info->shared) | |
1688 | { | |
1689 | /* We may need a .plt entry if the function this reloc | |
1690 | refers to is in a shared lib. */ | |
1691 | h->plt.refcount += 1; | |
1692 | } | |
1693 | ||
1694 | /* If we are creating a shared library, and this is a reloc | |
1695 | against a global symbol, or a non PC relative reloc | |
1696 | against a local symbol, then we need to copy the reloc | |
1697 | into the shared library. However, if we are linking with | |
1698 | -Bsymbolic, we do not need to copy a reloc against a | |
1699 | global symbol which is defined in an object we are | |
1700 | including in the link (i.e., DEF_REGULAR is set). At | |
1701 | this point we have not seen all the input files, so it is | |
1702 | possible that DEF_REGULAR is not set now but will be set | |
1703 | later (it is never cleared). In case of a weak definition, | |
1704 | DEF_REGULAR may be cleared later by a strong definition in | |
1705 | a shared library. We account for that possibility below by | |
1706 | storing information in the relocs_copied field of the hash | |
1707 | table entry. A similar situation occurs when creating | |
1708 | shared libraries and symbol visibility changes render the | |
1709 | symbol local. | |
1710 | ||
1711 | If on the other hand, we are creating an executable, we | |
1712 | may need to keep relocations for symbols satisfied by a | |
1713 | dynamic library if we manage to avoid copy relocs for the | |
1714 | symbol. */ | |
1715 | if ((info->shared | |
1716 | && (sec->flags & SEC_ALLOC) != 0 | |
1717 | && (! _bfd_sparc_elf_howto_table[r_type].pc_relative | |
1718 | || (h != NULL | |
72fbc6e5 | 1719 | && (! SYMBOLIC_BIND (info, h) |
22b75d0a DM |
1720 | || h->root.type == bfd_link_hash_defweak |
1721 | || !h->def_regular)))) | |
1722 | || (!info->shared | |
1723 | && (sec->flags & SEC_ALLOC) != 0 | |
1724 | && h != NULL | |
1725 | && (h->root.type == bfd_link_hash_defweak | |
d0c9aeb3 DM |
1726 | || !h->def_regular)) |
1727 | || (!info->shared | |
1728 | && h != NULL | |
1729 | && h->type == STT_GNU_IFUNC)) | |
22b75d0a DM |
1730 | { |
1731 | struct _bfd_sparc_elf_dyn_relocs *p; | |
1732 | struct _bfd_sparc_elf_dyn_relocs **head; | |
1733 | ||
1734 | /* When creating a shared object, we must copy these | |
1735 | relocs into the output file. We create a reloc | |
1736 | section in dynobj and make room for the reloc. */ | |
1737 | if (sreloc == NULL) | |
1738 | { | |
83bac4b0 NC |
1739 | sreloc = _bfd_elf_make_dynamic_reloc_section |
1740 | (sec, htab->elf.dynobj, htab->word_align_power, | |
1741 | abfd, /*rela?*/ TRUE); | |
1742 | ||
22b75d0a | 1743 | if (sreloc == NULL) |
83bac4b0 | 1744 | return FALSE; |
22b75d0a DM |
1745 | } |
1746 | ||
1747 | /* If this is a global symbol, we count the number of | |
1748 | relocations we need for this symbol. */ | |
1749 | if (h != NULL) | |
1750 | head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs; | |
1751 | else | |
1752 | { | |
1753 | /* Track dynamic relocs needed for local syms too. | |
1754 | We really need local syms available to do this | |
1755 | easily. Oh well. */ | |
22b75d0a | 1756 | asection *s; |
6edfbbad | 1757 | void *vpp; |
22b75d0a | 1758 | |
d0c9aeb3 | 1759 | BFD_ASSERT (isym != NULL); |
87d72d41 AM |
1760 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
1761 | if (s == NULL) | |
1762 | s = sec; | |
1763 | ||
6edfbbad DJ |
1764 | vpp = &elf_section_data (s)->local_dynrel; |
1765 | head = (struct _bfd_sparc_elf_dyn_relocs **) vpp; | |
22b75d0a DM |
1766 | } |
1767 | ||
1768 | p = *head; | |
1769 | if (p == NULL || p->sec != sec) | |
1770 | { | |
1771 | bfd_size_type amt = sizeof *p; | |
1772 | p = ((struct _bfd_sparc_elf_dyn_relocs *) | |
1773 | bfd_alloc (htab->elf.dynobj, amt)); | |
1774 | if (p == NULL) | |
1775 | return FALSE; | |
1776 | p->next = *head; | |
1777 | *head = p; | |
1778 | p->sec = sec; | |
1779 | p->count = 0; | |
1780 | p->pc_count = 0; | |
1781 | } | |
1782 | ||
1783 | p->count += 1; | |
1784 | if (_bfd_sparc_elf_howto_table[r_type].pc_relative) | |
1785 | p->pc_count += 1; | |
1786 | } | |
1787 | ||
1788 | break; | |
1789 | ||
1790 | case R_SPARC_GNU_VTINHERIT: | |
1791 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
1792 | return FALSE; | |
1793 | break; | |
1794 | ||
1795 | case R_SPARC_GNU_VTENTRY: | |
d17e0c6e JB |
1796 | BFD_ASSERT (h != NULL); |
1797 | if (h != NULL | |
1798 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
22b75d0a DM |
1799 | return FALSE; |
1800 | break; | |
1801 | ||
1802 | case R_SPARC_REGISTER: | |
1803 | /* Nothing to do. */ | |
1804 | break; | |
1805 | ||
1806 | default: | |
1807 | break; | |
1808 | } | |
1809 | } | |
1810 | ||
1811 | return TRUE; | |
1812 | } | |
1813 | \f | |
1814 | asection * | |
1815 | _bfd_sparc_elf_gc_mark_hook (asection *sec, | |
1816 | struct bfd_link_info *info, | |
1817 | Elf_Internal_Rela *rel, | |
1818 | struct elf_link_hash_entry *h, | |
1819 | Elf_Internal_Sym *sym) | |
1820 | { | |
1821 | if (h != NULL) | |
07adf181 | 1822 | switch (SPARC_ELF_R_TYPE (rel->r_info)) |
22b75d0a DM |
1823 | { |
1824 | case R_SPARC_GNU_VTINHERIT: | |
1825 | case R_SPARC_GNU_VTENTRY: | |
07adf181 | 1826 | return NULL; |
22b75d0a | 1827 | } |
22b75d0a | 1828 | |
07adf181 | 1829 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
22b75d0a DM |
1830 | } |
1831 | ||
1832 | /* Update the got entry reference counts for the section being removed. */ | |
1833 | bfd_boolean | |
1834 | _bfd_sparc_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, | |
1835 | asection *sec, const Elf_Internal_Rela *relocs) | |
1836 | { | |
1837 | struct _bfd_sparc_elf_link_hash_table *htab; | |
1838 | Elf_Internal_Shdr *symtab_hdr; | |
1839 | struct elf_link_hash_entry **sym_hashes; | |
1840 | bfd_signed_vma *local_got_refcounts; | |
1841 | const Elf_Internal_Rela *rel, *relend; | |
1842 | ||
7dda2462 TG |
1843 | if (info->relocatable) |
1844 | return TRUE; | |
1845 | ||
0ffa91dd NC |
1846 | BFD_ASSERT (is_sparc_elf (abfd) || sec->reloc_count == 0); |
1847 | ||
22b75d0a DM |
1848 | elf_section_data (sec)->local_dynrel = NULL; |
1849 | ||
1850 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 1851 | BFD_ASSERT (htab != NULL); |
0ffa91dd | 1852 | symtab_hdr = &elf_symtab_hdr (abfd); |
22b75d0a DM |
1853 | sym_hashes = elf_sym_hashes (abfd); |
1854 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1855 | ||
1856 | relend = relocs + sec->reloc_count; | |
1857 | for (rel = relocs; rel < relend; rel++) | |
1858 | { | |
1859 | unsigned long r_symndx; | |
1860 | unsigned int r_type; | |
1861 | struct elf_link_hash_entry *h = NULL; | |
1862 | ||
1863 | r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info); | |
1864 | if (r_symndx >= symtab_hdr->sh_info) | |
1865 | { | |
1866 | struct _bfd_sparc_elf_link_hash_entry *eh; | |
1867 | struct _bfd_sparc_elf_dyn_relocs **pp; | |
1868 | struct _bfd_sparc_elf_dyn_relocs *p; | |
1869 | ||
1870 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1871 | while (h->root.type == bfd_link_hash_indirect | |
1872 | || h->root.type == bfd_link_hash_warning) | |
1873 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1874 | eh = (struct _bfd_sparc_elf_link_hash_entry *) h; | |
1875 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1876 | if (p->sec == sec) | |
1877 | { | |
1878 | /* Everything must go for SEC. */ | |
1879 | *pp = p->next; | |
1880 | break; | |
1881 | } | |
1882 | } | |
1883 | ||
1884 | r_type = SPARC_ELF_R_TYPE (rel->r_info); | |
1885 | r_type = sparc_elf_tls_transition (info, abfd, r_type, h != NULL); | |
1886 | switch (r_type) | |
1887 | { | |
1888 | case R_SPARC_TLS_LDM_HI22: | |
1889 | case R_SPARC_TLS_LDM_LO10: | |
1890 | if (_bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount > 0) | |
1891 | _bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount -= 1; | |
1892 | break; | |
1893 | ||
1894 | case R_SPARC_TLS_GD_HI22: | |
1895 | case R_SPARC_TLS_GD_LO10: | |
1896 | case R_SPARC_TLS_IE_HI22: | |
1897 | case R_SPARC_TLS_IE_LO10: | |
1898 | case R_SPARC_GOT10: | |
1899 | case R_SPARC_GOT13: | |
1900 | case R_SPARC_GOT22: | |
739f7f82 DM |
1901 | case R_SPARC_GOTDATA_HIX22: |
1902 | case R_SPARC_GOTDATA_LOX10: | |
1903 | case R_SPARC_GOTDATA_OP_HIX22: | |
1904 | case R_SPARC_GOTDATA_OP_LOX10: | |
22b75d0a DM |
1905 | if (h != NULL) |
1906 | { | |
1907 | if (h->got.refcount > 0) | |
1908 | h->got.refcount--; | |
1909 | } | |
1910 | else | |
1911 | { | |
00c50991 DM |
1912 | switch (r_type) |
1913 | { | |
1914 | case R_SPARC_GOTDATA_OP_HIX22: | |
1915 | case R_SPARC_GOTDATA_OP_LOX10: | |
1916 | break; | |
1917 | ||
1918 | default: | |
1919 | if (local_got_refcounts[r_symndx] > 0) | |
1920 | local_got_refcounts[r_symndx]--; | |
1921 | break; | |
1922 | } | |
22b75d0a DM |
1923 | } |
1924 | break; | |
1925 | ||
1926 | case R_SPARC_PC10: | |
1927 | case R_SPARC_PC22: | |
1928 | case R_SPARC_PC_HH22: | |
1929 | case R_SPARC_PC_HM10: | |
1930 | case R_SPARC_PC_LM22: | |
1931 | if (h != NULL | |
1932 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1933 | break; | |
1934 | /* Fall through. */ | |
1935 | ||
1936 | case R_SPARC_DISP8: | |
1937 | case R_SPARC_DISP16: | |
1938 | case R_SPARC_DISP32: | |
1939 | case R_SPARC_DISP64: | |
1940 | case R_SPARC_WDISP30: | |
1941 | case R_SPARC_WDISP22: | |
1942 | case R_SPARC_WDISP19: | |
1943 | case R_SPARC_WDISP16: | |
1944 | case R_SPARC_8: | |
1945 | case R_SPARC_16: | |
1946 | case R_SPARC_32: | |
1947 | case R_SPARC_HI22: | |
1948 | case R_SPARC_22: | |
1949 | case R_SPARC_13: | |
1950 | case R_SPARC_LO10: | |
1951 | case R_SPARC_UA16: | |
1952 | case R_SPARC_UA32: | |
1953 | case R_SPARC_PLT32: | |
1954 | case R_SPARC_10: | |
1955 | case R_SPARC_11: | |
1956 | case R_SPARC_64: | |
1957 | case R_SPARC_OLO10: | |
1958 | case R_SPARC_HH22: | |
1959 | case R_SPARC_HM10: | |
1960 | case R_SPARC_LM22: | |
1961 | case R_SPARC_7: | |
1962 | case R_SPARC_5: | |
1963 | case R_SPARC_6: | |
1964 | case R_SPARC_HIX22: | |
1965 | case R_SPARC_LOX10: | |
1966 | case R_SPARC_H44: | |
1967 | case R_SPARC_M44: | |
1968 | case R_SPARC_L44: | |
1969 | case R_SPARC_UA64: | |
1970 | if (info->shared) | |
1971 | break; | |
1972 | /* Fall through. */ | |
1973 | ||
1974 | case R_SPARC_WPLT30: | |
1975 | if (h != NULL) | |
1976 | { | |
1977 | if (h->plt.refcount > 0) | |
1978 | h->plt.refcount--; | |
1979 | } | |
1980 | break; | |
1981 | ||
1982 | default: | |
1983 | break; | |
1984 | } | |
1985 | } | |
1986 | ||
1987 | return TRUE; | |
1988 | } | |
1989 | ||
1990 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
1991 | regular object. The current definition is in some section of the | |
1992 | dynamic object, but we're not including those sections. We have to | |
1993 | change the definition to something the rest of the link can | |
1994 | understand. */ | |
1995 | ||
1996 | bfd_boolean | |
1997 | _bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
1998 | struct elf_link_hash_entry *h) | |
1999 | { | |
2000 | struct _bfd_sparc_elf_link_hash_table *htab; | |
2001 | struct _bfd_sparc_elf_link_hash_entry * eh; | |
2002 | struct _bfd_sparc_elf_dyn_relocs *p; | |
2003 | asection *s; | |
22b75d0a DM |
2004 | |
2005 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 2006 | BFD_ASSERT (htab != NULL); |
22b75d0a DM |
2007 | |
2008 | /* Make sure we know what is going on here. */ | |
2009 | BFD_ASSERT (htab->elf.dynobj != NULL | |
2010 | && (h->needs_plt | |
d0c9aeb3 | 2011 | || h->type == STT_GNU_IFUNC |
22b75d0a DM |
2012 | || h->u.weakdef != NULL |
2013 | || (h->def_dynamic | |
2014 | && h->ref_regular | |
2015 | && !h->def_regular))); | |
2016 | ||
2017 | /* If this is a function, put it in the procedure linkage table. We | |
2018 | will fill in the contents of the procedure linkage table later | |
2019 | (although we could actually do it here). The STT_NOTYPE | |
2020 | condition is a hack specifically for the Oracle libraries | |
2021 | delivered for Solaris; for some inexplicable reason, they define | |
2022 | some of their functions as STT_NOTYPE when they really should be | |
2023 | STT_FUNC. */ | |
2024 | if (h->type == STT_FUNC | |
d0c9aeb3 | 2025 | || h->type == STT_GNU_IFUNC |
22b75d0a DM |
2026 | || h->needs_plt |
2027 | || (h->type == STT_NOTYPE | |
2028 | && (h->root.type == bfd_link_hash_defined | |
2029 | || h->root.type == bfd_link_hash_defweak) | |
2030 | && (h->root.u.def.section->flags & SEC_CODE) != 0)) | |
2031 | { | |
2032 | if (h->plt.refcount <= 0 | |
d0c9aeb3 DM |
2033 | || (h->type != STT_GNU_IFUNC |
2034 | && (SYMBOL_CALLS_LOCAL (info, h) | |
2035 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
2036 | && h->root.type == bfd_link_hash_undefweak)))) | |
22b75d0a DM |
2037 | { |
2038 | /* This case can occur if we saw a WPLT30 reloc in an input | |
2039 | file, but the symbol was never referred to by a dynamic | |
2040 | object, or if all references were garbage collected. In | |
2041 | such a case, we don't actually need to build a procedure | |
2042 | linkage table, and we can just do a WDISP30 reloc instead. */ | |
2043 | h->plt.offset = (bfd_vma) -1; | |
2044 | h->needs_plt = 0; | |
2045 | } | |
2046 | ||
2047 | return TRUE; | |
2048 | } | |
2049 | else | |
2050 | h->plt.offset = (bfd_vma) -1; | |
2051 | ||
2052 | /* If this is a weak symbol, and there is a real definition, the | |
2053 | processor independent code will have arranged for us to see the | |
2054 | real definition first, and we can just use the same value. */ | |
2055 | if (h->u.weakdef != NULL) | |
2056 | { | |
2057 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined | |
2058 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
2059 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
2060 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
2061 | return TRUE; | |
2062 | } | |
2063 | ||
2064 | /* This is a reference to a symbol defined by a dynamic object which | |
2065 | is not a function. */ | |
2066 | ||
2067 | /* If we are creating a shared library, we must presume that the | |
2068 | only references to the symbol are via the global offset table. | |
2069 | For such cases we need not do anything here; the relocations will | |
2070 | be handled correctly by relocate_section. */ | |
2071 | if (info->shared) | |
2072 | return TRUE; | |
2073 | ||
2074 | /* If there are no references to this symbol that do not use the | |
2075 | GOT, we don't need to generate a copy reloc. */ | |
2076 | if (!h->non_got_ref) | |
2077 | return TRUE; | |
2078 | ||
72fbc6e5 DM |
2079 | /* If -z nocopyreloc was given, we won't generate them either. */ |
2080 | if (info->nocopyreloc) | |
2081 | { | |
2082 | h->non_got_ref = 0; | |
2083 | return TRUE; | |
2084 | } | |
2085 | ||
22b75d0a DM |
2086 | eh = (struct _bfd_sparc_elf_link_hash_entry *) h; |
2087 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2088 | { | |
2089 | s = p->sec->output_section; | |
2090 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2091 | break; | |
2092 | } | |
2093 | ||
2094 | /* If we didn't find any dynamic relocs in read-only sections, then | |
2095 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
2096 | if (p == NULL) | |
2097 | { | |
2098 | h->non_got_ref = 0; | |
2099 | return TRUE; | |
2100 | } | |
2101 | ||
909272ee AM |
2102 | if (h->size == 0) |
2103 | { | |
2104 | (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), | |
2105 | h->root.root.string); | |
2106 | return TRUE; | |
2107 | } | |
2108 | ||
22b75d0a DM |
2109 | /* We must allocate the symbol in our .dynbss section, which will |
2110 | become part of the .bss section of the executable. There will be | |
2111 | an entry for this symbol in the .dynsym section. The dynamic | |
2112 | object will contain position independent code, so all references | |
2113 | from the dynamic object to this symbol will go through the global | |
2114 | offset table. The dynamic linker will use the .dynsym entry to | |
2115 | determine the address it must put in the global offset table, so | |
2116 | both the dynamic object and the regular object will refer to the | |
2117 | same memory location for the variable. */ | |
2118 | ||
2119 | /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker | |
2120 | to copy the initial value out of the dynamic object and into the | |
2121 | runtime process image. We need to remember the offset into the | |
2122 | .rel.bss section we are going to use. */ | |
2123 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
2124 | { | |
2125 | htab->srelbss->size += SPARC_ELF_RELA_BYTES (htab); | |
2126 | h->needs_copy = 1; | |
2127 | } | |
2128 | ||
22b75d0a | 2129 | s = htab->sdynbss; |
22b75d0a | 2130 | |
027297b7 | 2131 | return _bfd_elf_adjust_dynamic_copy (h, s); |
22b75d0a DM |
2132 | } |
2133 | ||
2134 | /* Allocate space in .plt, .got and associated reloc sections for | |
2135 | dynamic relocs. */ | |
2136 | ||
2137 | static bfd_boolean | |
2138 | allocate_dynrelocs (struct elf_link_hash_entry *h, PTR inf) | |
2139 | { | |
2140 | struct bfd_link_info *info; | |
2141 | struct _bfd_sparc_elf_link_hash_table *htab; | |
2142 | struct _bfd_sparc_elf_link_hash_entry *eh; | |
2143 | struct _bfd_sparc_elf_dyn_relocs *p; | |
2144 | ||
2145 | if (h->root.type == bfd_link_hash_indirect) | |
2146 | return TRUE; | |
2147 | ||
2148 | if (h->root.type == bfd_link_hash_warning) | |
2149 | /* When warning symbols are created, they **replace** the "real" | |
2150 | entry in the hash table, thus we never get to see the real | |
2151 | symbol in a hash traversal. So look at it now. */ | |
2152 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2153 | ||
2154 | info = (struct bfd_link_info *) inf; | |
2155 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 2156 | BFD_ASSERT (htab != NULL); |
22b75d0a | 2157 | |
d0c9aeb3 DM |
2158 | if ((htab->elf.dynamic_sections_created |
2159 | && h->plt.refcount > 0) | |
2160 | || (h->type == STT_GNU_IFUNC | |
b48ca1d4 DM |
2161 | && h->def_regular |
2162 | && h->ref_regular)) | |
22b75d0a DM |
2163 | { |
2164 | /* Make sure this symbol is output as a dynamic symbol. | |
2165 | Undefined weak syms won't yet be marked as dynamic. */ | |
2166 | if (h->dynindx == -1 | |
2167 | && !h->forced_local) | |
2168 | { | |
2169 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2170 | return FALSE; | |
2171 | } | |
2172 | ||
d0c9aeb3 | 2173 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h) |
b48ca1d4 DM |
2174 | || (h->type == STT_GNU_IFUNC |
2175 | && h->def_regular)) | |
22b75d0a | 2176 | { |
72fbc6e5 | 2177 | asection *s = htab->elf.splt; |
22b75d0a | 2178 | |
d0c9aeb3 DM |
2179 | if (s == NULL) |
2180 | s = htab->elf.iplt; | |
2181 | ||
910600e9 | 2182 | /* Allocate room for the header. */ |
22b75d0a | 2183 | if (s->size == 0) |
910600e9 RS |
2184 | { |
2185 | s->size = htab->plt_header_size; | |
2186 | ||
2187 | /* Allocate space for the .rela.plt.unloaded relocations. */ | |
2188 | if (htab->is_vxworks && !info->shared) | |
2189 | htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2; | |
2190 | } | |
22b75d0a DM |
2191 | |
2192 | /* The procedure linkage table size is bounded by the magnitude | |
2193 | of the offset we can describe in the entry. */ | |
2194 | if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ? | |
e8be8da4 | 2195 | (((bfd_vma)1 << 31) << 1) : 0x400000)) |
22b75d0a DM |
2196 | { |
2197 | bfd_set_error (bfd_error_bad_value); | |
2198 | return FALSE; | |
2199 | } | |
2200 | ||
2201 | if (SPARC_ELF_WORD_BYTES(htab) == 8 | |
2202 | && s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE) | |
2203 | { | |
2204 | bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE; | |
2205 | ||
2206 | ||
2207 | off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE; | |
2208 | ||
2209 | h->plt.offset = (s->size - (off * 8)); | |
2210 | } | |
2211 | else | |
2212 | h->plt.offset = s->size; | |
2213 | ||
2214 | /* If this symbol is not defined in a regular file, and we are | |
2215 | not generating a shared library, then set the symbol to this | |
2216 | location in the .plt. This is required to make function | |
2217 | pointers compare as equal between the normal executable and | |
2218 | the shared library. */ | |
2219 | if (! info->shared | |
2220 | && !h->def_regular) | |
2221 | { | |
2222 | h->root.u.def.section = s; | |
2223 | h->root.u.def.value = h->plt.offset; | |
2224 | } | |
2225 | ||
2226 | /* Make room for this entry. */ | |
910600e9 | 2227 | s->size += htab->plt_entry_size; |
22b75d0a DM |
2228 | |
2229 | /* We also need to make an entry in the .rela.plt section. */ | |
d0c9aeb3 DM |
2230 | if (s == htab->elf.splt) |
2231 | htab->elf.srelplt->size += SPARC_ELF_RELA_BYTES (htab); | |
2232 | else | |
2233 | htab->elf.irelplt->size += SPARC_ELF_RELA_BYTES (htab); | |
910600e9 RS |
2234 | |
2235 | if (htab->is_vxworks) | |
2236 | { | |
2237 | /* Allocate space for the .got.plt entry. */ | |
72fbc6e5 | 2238 | htab->elf.sgotplt->size += 4; |
910600e9 RS |
2239 | |
2240 | /* ...and for the .rela.plt.unloaded relocations. */ | |
2241 | if (!info->shared) | |
2242 | htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3; | |
2243 | } | |
22b75d0a DM |
2244 | } |
2245 | else | |
2246 | { | |
2247 | h->plt.offset = (bfd_vma) -1; | |
2248 | h->needs_plt = 0; | |
2249 | } | |
2250 | } | |
2251 | else | |
2252 | { | |
2253 | h->plt.offset = (bfd_vma) -1; | |
2254 | h->needs_plt = 0; | |
2255 | } | |
2256 | ||
2257 | /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary, | |
2258 | make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */ | |
2259 | if (h->got.refcount > 0 | |
2260 | && !info->shared | |
2261 | && h->dynindx == -1 | |
2262 | && _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE) | |
2263 | h->got.offset = (bfd_vma) -1; | |
2264 | else if (h->got.refcount > 0) | |
2265 | { | |
2266 | asection *s; | |
2267 | bfd_boolean dyn; | |
2268 | int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type; | |
2269 | ||
2270 | /* Make sure this symbol is output as a dynamic symbol. | |
2271 | Undefined weak syms won't yet be marked as dynamic. */ | |
2272 | if (h->dynindx == -1 | |
2273 | && !h->forced_local) | |
2274 | { | |
2275 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2276 | return FALSE; | |
2277 | } | |
2278 | ||
72fbc6e5 | 2279 | s = htab->elf.sgot; |
22b75d0a DM |
2280 | h->got.offset = s->size; |
2281 | s->size += SPARC_ELF_WORD_BYTES (htab); | |
2282 | /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */ | |
2283 | if (tls_type == GOT_TLS_GD) | |
2284 | s->size += SPARC_ELF_WORD_BYTES (htab); | |
2285 | dyn = htab->elf.dynamic_sections_created; | |
2286 | /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation, | |
2287 | R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if | |
2288 | global. */ | |
2289 | if ((tls_type == GOT_TLS_GD && h->dynindx == -1) | |
d0c9aeb3 DM |
2290 | || tls_type == GOT_TLS_IE |
2291 | || h->type == STT_GNU_IFUNC) | |
72fbc6e5 | 2292 | htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab); |
22b75d0a | 2293 | else if (tls_type == GOT_TLS_GD) |
72fbc6e5 | 2294 | htab->elf.srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab); |
22b75d0a | 2295 | else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)) |
72fbc6e5 | 2296 | htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab); |
22b75d0a DM |
2297 | } |
2298 | else | |
2299 | h->got.offset = (bfd_vma) -1; | |
2300 | ||
2301 | eh = (struct _bfd_sparc_elf_link_hash_entry *) h; | |
2302 | if (eh->dyn_relocs == NULL) | |
2303 | return TRUE; | |
2304 | ||
2305 | /* In the shared -Bsymbolic case, discard space allocated for | |
2306 | dynamic pc-relative relocs against symbols which turn out to be | |
2307 | defined in regular objects. For the normal shared case, discard | |
2308 | space for pc-relative relocs that have become local due to symbol | |
2309 | visibility changes. */ | |
2310 | ||
2311 | if (info->shared) | |
2312 | { | |
72fbc6e5 | 2313 | if (SYMBOL_CALLS_LOCAL (info, h)) |
22b75d0a DM |
2314 | { |
2315 | struct _bfd_sparc_elf_dyn_relocs **pp; | |
2316 | ||
2317 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
2318 | { | |
2319 | p->count -= p->pc_count; | |
2320 | p->pc_count = 0; | |
2321 | if (p->count == 0) | |
2322 | *pp = p->next; | |
2323 | else | |
2324 | pp = &p->next; | |
2325 | } | |
2326 | } | |
22d606e9 | 2327 | |
3348747a NS |
2328 | if (htab->is_vxworks) |
2329 | { | |
2330 | struct _bfd_sparc_elf_dyn_relocs **pp; | |
2331 | ||
2332 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
2333 | { | |
2334 | if (strcmp (p->sec->output_section->name, ".tls_vars") == 0) | |
2335 | *pp = p->next; | |
2336 | else | |
2337 | pp = &p->next; | |
2338 | } | |
2339 | } | |
2340 | ||
22d606e9 AM |
2341 | /* Also discard relocs on undefined weak syms with non-default |
2342 | visibility. */ | |
2343 | if (eh->dyn_relocs != NULL | |
2344 | && h->root.type == bfd_link_hash_undefweak) | |
2345 | { | |
2346 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
2347 | eh->dyn_relocs = NULL; | |
2348 | ||
2349 | /* Make sure undefined weak symbols are output as a dynamic | |
2350 | symbol in PIEs. */ | |
2351 | else if (h->dynindx == -1 | |
2352 | && !h->forced_local) | |
2353 | { | |
2354 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2355 | return FALSE; | |
2356 | } | |
2357 | } | |
22b75d0a DM |
2358 | } |
2359 | else | |
2360 | { | |
2361 | /* For the non-shared case, discard space for relocs against | |
2362 | symbols which turn out to need copy relocs or are not | |
2363 | dynamic. */ | |
2364 | ||
2365 | if (!h->non_got_ref | |
2366 | && ((h->def_dynamic | |
2367 | && !h->def_regular) | |
2368 | || (htab->elf.dynamic_sections_created | |
2369 | && (h->root.type == bfd_link_hash_undefweak | |
2370 | || h->root.type == bfd_link_hash_undefined)))) | |
2371 | { | |
2372 | /* Make sure this symbol is output as a dynamic symbol. | |
2373 | Undefined weak syms won't yet be marked as dynamic. */ | |
2374 | if (h->dynindx == -1 | |
2375 | && !h->forced_local) | |
2376 | { | |
2377 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2378 | return FALSE; | |
2379 | } | |
2380 | ||
2381 | /* If that succeeded, we know we'll be keeping all the | |
2382 | relocs. */ | |
2383 | if (h->dynindx != -1) | |
2384 | goto keep; | |
2385 | } | |
2386 | ||
2387 | eh->dyn_relocs = NULL; | |
2388 | ||
2389 | keep: ; | |
2390 | } | |
2391 | ||
2392 | /* Finally, allocate space. */ | |
2393 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2394 | { | |
2395 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
2396 | sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab); | |
2397 | } | |
2398 | ||
2399 | return TRUE; | |
2400 | } | |
2401 | ||
d0c9aeb3 DM |
2402 | /* Allocate space in .plt, .got and associated reloc sections for |
2403 | local dynamic relocs. */ | |
2404 | ||
2405 | static bfd_boolean | |
2406 | allocate_local_dynrelocs (void **slot, void *inf) | |
2407 | { | |
2408 | struct elf_link_hash_entry *h | |
2409 | = (struct elf_link_hash_entry *) *slot; | |
2410 | ||
2411 | if (h->type != STT_GNU_IFUNC | |
2412 | || !h->def_regular | |
2413 | || !h->ref_regular | |
2414 | || !h->forced_local | |
2415 | || h->root.type != bfd_link_hash_defined) | |
2416 | abort (); | |
2417 | ||
2418 | return allocate_dynrelocs (h, inf); | |
2419 | } | |
2420 | ||
22b75d0a DM |
2421 | /* Find any dynamic relocs that apply to read-only sections. */ |
2422 | ||
2423 | static bfd_boolean | |
2424 | readonly_dynrelocs (struct elf_link_hash_entry *h, PTR inf) | |
2425 | { | |
2426 | struct _bfd_sparc_elf_link_hash_entry *eh; | |
2427 | struct _bfd_sparc_elf_dyn_relocs *p; | |
2428 | ||
2429 | if (h->root.type == bfd_link_hash_warning) | |
2430 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2431 | ||
2432 | eh = (struct _bfd_sparc_elf_link_hash_entry *) h; | |
2433 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2434 | { | |
2435 | asection *s = p->sec->output_section; | |
2436 | ||
2437 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2438 | { | |
2439 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
2440 | ||
2441 | info->flags |= DF_TEXTREL; | |
2442 | ||
2443 | /* Not an error, just cut short the traversal. */ | |
2444 | return FALSE; | |
2445 | } | |
2446 | } | |
2447 | return TRUE; | |
2448 | } | |
2449 | ||
2450 | /* Return true if the dynamic symbol for a given section should be | |
2451 | omitted when creating a shared library. */ | |
2452 | ||
2453 | bfd_boolean | |
2454 | _bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd, | |
2455 | struct bfd_link_info *info, | |
2456 | asection *p) | |
2457 | { | |
2458 | /* We keep the .got section symbol so that explicit relocations | |
2459 | against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode | |
2460 | can be turned into relocations against the .got symbol. */ | |
2461 | if (strcmp (p->name, ".got") == 0) | |
2462 | return FALSE; | |
2463 | ||
2464 | return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p); | |
2465 | } | |
2466 | ||
2467 | /* Set the sizes of the dynamic sections. */ | |
2468 | ||
2469 | bfd_boolean | |
2470 | _bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd, | |
2471 | struct bfd_link_info *info) | |
2472 | { | |
2473 | struct _bfd_sparc_elf_link_hash_table *htab; | |
2474 | bfd *dynobj; | |
2475 | asection *s; | |
2476 | bfd *ibfd; | |
2477 | ||
2478 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 2479 | BFD_ASSERT (htab != NULL); |
22b75d0a DM |
2480 | dynobj = htab->elf.dynobj; |
2481 | BFD_ASSERT (dynobj != NULL); | |
2482 | ||
2483 | if (elf_hash_table (info)->dynamic_sections_created) | |
2484 | { | |
2485 | /* Set the contents of the .interp section to the interpreter. */ | |
2486 | if (info->executable) | |
2487 | { | |
2488 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
2489 | BFD_ASSERT (s != NULL); | |
2490 | s->size = htab->dynamic_interpreter_size; | |
2491 | s->contents = (unsigned char *) htab->dynamic_interpreter; | |
2492 | } | |
2493 | } | |
2494 | ||
2495 | /* Set up .got offsets for local syms, and space for local dynamic | |
2496 | relocs. */ | |
2497 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
2498 | { | |
2499 | bfd_signed_vma *local_got; | |
2500 | bfd_signed_vma *end_local_got; | |
2501 | char *local_tls_type; | |
2502 | bfd_size_type locsymcount; | |
2503 | Elf_Internal_Shdr *symtab_hdr; | |
2504 | asection *srel; | |
2505 | ||
0ffa91dd | 2506 | if (! is_sparc_elf (ibfd)) |
22b75d0a DM |
2507 | continue; |
2508 | ||
2509 | for (s = ibfd->sections; s != NULL; s = s->next) | |
2510 | { | |
2511 | struct _bfd_sparc_elf_dyn_relocs *p; | |
2512 | ||
6edfbbad | 2513 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
22b75d0a DM |
2514 | { |
2515 | if (!bfd_is_abs_section (p->sec) | |
2516 | && bfd_is_abs_section (p->sec->output_section)) | |
2517 | { | |
2518 | /* Input section has been discarded, either because | |
2519 | it is a copy of a linkonce section or due to | |
2520 | linker script /DISCARD/, so we'll be discarding | |
2521 | the relocs too. */ | |
2522 | } | |
3348747a NS |
2523 | else if (htab->is_vxworks |
2524 | && strcmp (p->sec->output_section->name, | |
2525 | ".tls_vars") == 0) | |
2526 | { | |
2527 | /* Relocations in vxworks .tls_vars sections are | |
2528 | handled specially by the loader. */ | |
2529 | } | |
22b75d0a DM |
2530 | else if (p->count != 0) |
2531 | { | |
2532 | srel = elf_section_data (p->sec)->sreloc; | |
d0c9aeb3 DM |
2533 | if (!htab->elf.dynamic_sections_created) |
2534 | srel = htab->elf.irelplt; | |
22b75d0a DM |
2535 | srel->size += p->count * SPARC_ELF_RELA_BYTES (htab); |
2536 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
2537 | info->flags |= DF_TEXTREL; | |
2538 | } | |
2539 | } | |
2540 | } | |
2541 | ||
2542 | local_got = elf_local_got_refcounts (ibfd); | |
2543 | if (!local_got) | |
2544 | continue; | |
2545 | ||
0ffa91dd | 2546 | symtab_hdr = &elf_symtab_hdr (ibfd); |
22b75d0a DM |
2547 | locsymcount = symtab_hdr->sh_info; |
2548 | end_local_got = local_got + locsymcount; | |
2549 | local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd); | |
72fbc6e5 DM |
2550 | s = htab->elf.sgot; |
2551 | srel = htab->elf.srelgot; | |
22b75d0a DM |
2552 | for (; local_got < end_local_got; ++local_got, ++local_tls_type) |
2553 | { | |
2554 | if (*local_got > 0) | |
2555 | { | |
2556 | *local_got = s->size; | |
2557 | s->size += SPARC_ELF_WORD_BYTES (htab); | |
2558 | if (*local_tls_type == GOT_TLS_GD) | |
2559 | s->size += SPARC_ELF_WORD_BYTES (htab); | |
2560 | if (info->shared | |
2561 | || *local_tls_type == GOT_TLS_GD | |
2562 | || *local_tls_type == GOT_TLS_IE) | |
2563 | srel->size += SPARC_ELF_RELA_BYTES (htab); | |
2564 | } | |
2565 | else | |
2566 | *local_got = (bfd_vma) -1; | |
2567 | } | |
2568 | } | |
2569 | ||
2570 | if (htab->tls_ldm_got.refcount > 0) | |
2571 | { | |
2572 | /* Allocate 2 got entries and 1 dynamic reloc for | |
2573 | R_SPARC_TLS_LDM_{HI22,LO10} relocs. */ | |
72fbc6e5 DM |
2574 | htab->tls_ldm_got.offset = htab->elf.sgot->size; |
2575 | htab->elf.sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab)); | |
2576 | htab->elf.srelgot->size += SPARC_ELF_RELA_BYTES (htab); | |
22b75d0a DM |
2577 | } |
2578 | else | |
2579 | htab->tls_ldm_got.offset = -1; | |
2580 | ||
2581 | /* Allocate global sym .plt and .got entries, and space for global | |
2582 | sym dynamic relocs. */ | |
2583 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); | |
2584 | ||
d0c9aeb3 DM |
2585 | /* Allocate .plt and .got entries, and space for local symbols. */ |
2586 | htab_traverse (htab->loc_hash_table, allocate_local_dynrelocs, info); | |
2587 | ||
22b75d0a | 2588 | if (! ABI_64_P (output_bfd) |
910600e9 | 2589 | && !htab->is_vxworks |
22b75d0a DM |
2590 | && elf_hash_table (info)->dynamic_sections_created) |
2591 | { | |
2592 | /* Make space for the trailing nop in .plt. */ | |
72fbc6e5 DM |
2593 | if (htab->elf.splt->size > 0) |
2594 | htab->elf.splt->size += 1 * SPARC_INSN_BYTES; | |
22b75d0a DM |
2595 | |
2596 | /* If the .got section is more than 0x1000 bytes, we add | |
2597 | 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13 | |
2598 | bit relocations have a greater chance of working. | |
2599 | ||
2600 | FIXME: Make this optimization work for 64-bit too. */ | |
72fbc6e5 | 2601 | if (htab->elf.sgot->size >= 0x1000 |
22b75d0a DM |
2602 | && elf_hash_table (info)->hgot->root.u.def.value == 0) |
2603 | elf_hash_table (info)->hgot->root.u.def.value = 0x1000; | |
2604 | } | |
2605 | ||
2606 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2607 | determined the sizes of the various dynamic sections. Allocate | |
2608 | memory for them. */ | |
2609 | for (s = dynobj->sections; s != NULL; s = s->next) | |
2610 | { | |
22b75d0a DM |
2611 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2612 | continue; | |
2613 | ||
72fbc6e5 DM |
2614 | if (s == htab->elf.splt |
2615 | || s == htab->elf.sgot | |
910600e9 | 2616 | || s == htab->sdynbss |
d0c9aeb3 | 2617 | || s == htab->elf.iplt |
72fbc6e5 | 2618 | || s == htab->elf.sgotplt) |
22b75d0a | 2619 | { |
c456f082 AM |
2620 | /* Strip this section if we don't need it; see the |
2621 | comment below. */ | |
2622 | } | |
0112cd26 | 2623 | else if (CONST_STRNEQ (s->name, ".rela")) |
c456f082 AM |
2624 | { |
2625 | if (s->size != 0) | |
22b75d0a DM |
2626 | { |
2627 | /* We use the reloc_count field as a counter if we need | |
2628 | to copy relocs into the output file. */ | |
2629 | s->reloc_count = 0; | |
2630 | } | |
2631 | } | |
c456f082 | 2632 | else |
22b75d0a | 2633 | { |
c456f082 | 2634 | /* It's not one of our sections. */ |
22b75d0a DM |
2635 | continue; |
2636 | } | |
2637 | ||
c456f082 | 2638 | if (s->size == 0) |
22b75d0a | 2639 | { |
c456f082 AM |
2640 | /* If we don't need this section, strip it from the |
2641 | output file. This is mostly to handle .rela.bss and | |
2642 | .rela.plt. We must create both sections in | |
2643 | create_dynamic_sections, because they must be created | |
2644 | before the linker maps input sections to output | |
2645 | sections. The linker does that before | |
2646 | adjust_dynamic_symbol is called, and it is that | |
2647 | function which decides whether anything needs to go | |
2648 | into these sections. */ | |
8423293d | 2649 | s->flags |= SEC_EXCLUDE; |
22b75d0a DM |
2650 | continue; |
2651 | } | |
2652 | ||
c456f082 AM |
2653 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
2654 | continue; | |
2655 | ||
22b75d0a DM |
2656 | /* Allocate memory for the section contents. Zero the memory |
2657 | for the benefit of .rela.plt, which has 4 unused entries | |
2658 | at the beginning, and we don't want garbage. */ | |
2659 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); | |
c456f082 | 2660 | if (s->contents == NULL) |
22b75d0a DM |
2661 | return FALSE; |
2662 | } | |
2663 | ||
2664 | if (elf_hash_table (info)->dynamic_sections_created) | |
2665 | { | |
2666 | /* Add some entries to the .dynamic section. We fill in the | |
2667 | values later, in _bfd_sparc_elf_finish_dynamic_sections, but we | |
2668 | must add the entries now so that we get the correct size for | |
2669 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2670 | dynamic linker and used by the debugger. */ | |
2671 | #define add_dynamic_entry(TAG, VAL) \ | |
2672 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
2673 | ||
2674 | if (info->executable) | |
2675 | { | |
2676 | if (!add_dynamic_entry (DT_DEBUG, 0)) | |
2677 | return FALSE; | |
2678 | } | |
2679 | ||
72fbc6e5 | 2680 | if (htab->elf.srelplt->size != 0) |
22b75d0a DM |
2681 | { |
2682 | if (!add_dynamic_entry (DT_PLTGOT, 0) | |
2683 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
2684 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2685 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
2686 | return FALSE; | |
2687 | } | |
2688 | ||
2689 | if (!add_dynamic_entry (DT_RELA, 0) | |
2690 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2691 | || !add_dynamic_entry (DT_RELAENT, | |
2692 | SPARC_ELF_RELA_BYTES (htab))) | |
2693 | return FALSE; | |
2694 | ||
2695 | /* If any dynamic relocs apply to a read-only section, | |
2696 | then we need a DT_TEXTREL entry. */ | |
2697 | if ((info->flags & DF_TEXTREL) == 0) | |
2698 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, | |
2699 | (PTR) info); | |
2700 | ||
2701 | if (info->flags & DF_TEXTREL) | |
2702 | { | |
2703 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
2704 | return FALSE; | |
2705 | } | |
2706 | ||
2707 | if (ABI_64_P (output_bfd)) | |
2708 | { | |
2709 | int reg; | |
2710 | struct _bfd_sparc_elf_app_reg * app_regs; | |
2711 | struct elf_strtab_hash *dynstr; | |
2712 | struct elf_link_hash_table *eht = elf_hash_table (info); | |
2713 | ||
2714 | /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER | |
2715 | entries if needed. */ | |
2716 | app_regs = _bfd_sparc_elf_hash_table (info)->app_regs; | |
2717 | dynstr = eht->dynstr; | |
2718 | ||
2719 | for (reg = 0; reg < 4; reg++) | |
2720 | if (app_regs [reg].name != NULL) | |
2721 | { | |
2722 | struct elf_link_local_dynamic_entry *entry, *e; | |
2723 | ||
2724 | if (!add_dynamic_entry (DT_SPARC_REGISTER, 0)) | |
2725 | return FALSE; | |
2726 | ||
2727 | entry = (struct elf_link_local_dynamic_entry *) | |
2728 | bfd_hash_allocate (&info->hash->table, sizeof (*entry)); | |
2729 | if (entry == NULL) | |
2730 | return FALSE; | |
2731 | ||
2732 | /* We cheat here a little bit: the symbol will not be local, so we | |
2733 | put it at the end of the dynlocal linked list. We will fix it | |
2734 | later on, as we have to fix other fields anyway. */ | |
2735 | entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4; | |
2736 | entry->isym.st_size = 0; | |
2737 | if (*app_regs [reg].name != '\0') | |
2738 | entry->isym.st_name | |
2739 | = _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE); | |
2740 | else | |
2741 | entry->isym.st_name = 0; | |
2742 | entry->isym.st_other = 0; | |
2743 | entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind, | |
2744 | STT_REGISTER); | |
2745 | entry->isym.st_shndx = app_regs [reg].shndx; | |
35fc36a8 | 2746 | entry->isym.st_target_internal = 0; |
22b75d0a DM |
2747 | entry->next = NULL; |
2748 | entry->input_bfd = output_bfd; | |
2749 | entry->input_indx = -1; | |
2750 | ||
2751 | if (eht->dynlocal == NULL) | |
2752 | eht->dynlocal = entry; | |
2753 | else | |
2754 | { | |
2755 | for (e = eht->dynlocal; e->next; e = e->next) | |
2756 | ; | |
2757 | e->next = entry; | |
2758 | } | |
2759 | eht->dynsymcount++; | |
2760 | } | |
2761 | } | |
7a2b07ff NS |
2762 | if (htab->is_vxworks |
2763 | && !elf_vxworks_add_dynamic_entries (output_bfd, info)) | |
2764 | return FALSE; | |
22b75d0a DM |
2765 | } |
2766 | #undef add_dynamic_entry | |
2767 | ||
2768 | return TRUE; | |
2769 | } | |
2770 | \f | |
2771 | bfd_boolean | |
2772 | _bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec) | |
2773 | { | |
f592407e AM |
2774 | if (!sec->used_by_bfd) |
2775 | { | |
2776 | struct _bfd_sparc_elf_section_data *sdata; | |
2777 | bfd_size_type amt = sizeof (*sdata); | |
22b75d0a | 2778 | |
f592407e AM |
2779 | sdata = bfd_zalloc (abfd, amt); |
2780 | if (sdata == NULL) | |
2781 | return FALSE; | |
2782 | sec->used_by_bfd = sdata; | |
2783 | } | |
22b75d0a DM |
2784 | |
2785 | return _bfd_elf_new_section_hook (abfd, sec); | |
2786 | } | |
2787 | ||
2788 | bfd_boolean | |
2789 | _bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED, | |
2790 | struct bfd_section *section, | |
2791 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED, | |
2792 | bfd_boolean *again) | |
2793 | { | |
c8a1f254 NS |
2794 | if (link_info->relocatable) |
2795 | (*link_info->callbacks->einfo) | |
2796 | (_("%P%F: --relax and -r may not be used together\n")); | |
2797 | ||
22b75d0a DM |
2798 | *again = FALSE; |
2799 | sec_do_relax (section) = 1; | |
2800 | return TRUE; | |
2801 | } | |
2802 | \f | |
2803 | /* Return the base VMA address which should be subtracted from real addresses | |
2804 | when resolving @dtpoff relocation. | |
2805 | This is PT_TLS segment p_vaddr. */ | |
2806 | ||
2807 | static bfd_vma | |
2808 | dtpoff_base (struct bfd_link_info *info) | |
2809 | { | |
2810 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
2811 | if (elf_hash_table (info)->tls_sec == NULL) | |
2812 | return 0; | |
2813 | return elf_hash_table (info)->tls_sec->vma; | |
2814 | } | |
2815 | ||
2816 | /* Return the relocation value for @tpoff relocation | |
2817 | if STT_TLS virtual address is ADDRESS. */ | |
2818 | ||
2819 | static bfd_vma | |
2820 | tpoff (struct bfd_link_info *info, bfd_vma address) | |
2821 | { | |
2822 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
1360ba76 RO |
2823 | const struct elf_backend_data *bed = get_elf_backend_data (info->output_bfd); |
2824 | bfd_vma static_tls_size; | |
22b75d0a DM |
2825 | |
2826 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
2827 | if (htab->tls_sec == NULL) | |
2828 | return 0; | |
1360ba76 RO |
2829 | |
2830 | /* Consider special static TLS alignment requirements. */ | |
2831 | static_tls_size = BFD_ALIGN (htab->tls_size, bed->static_tls_alignment); | |
2832 | return address - static_tls_size - htab->tls_sec->vma; | |
22b75d0a DM |
2833 | } |
2834 | ||
00c50991 DM |
2835 | /* Return the relocation value for a %gdop relocation. */ |
2836 | ||
2837 | static bfd_vma | |
2838 | gdopoff (struct bfd_link_info *info, bfd_vma address) | |
2839 | { | |
2840 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
2841 | bfd_vma got_base; | |
2842 | ||
2843 | got_base = (htab->hgot->root.u.def.value | |
2844 | + htab->hgot->root.u.def.section->output_offset | |
2845 | + htab->hgot->root.u.def.section->output_section->vma); | |
2846 | ||
2847 | return address - got_base; | |
2848 | } | |
2849 | ||
22b75d0a DM |
2850 | /* Relocate a SPARC ELF section. */ |
2851 | ||
2852 | bfd_boolean | |
ab96bf03 AM |
2853 | _bfd_sparc_elf_relocate_section (bfd *output_bfd, |
2854 | struct bfd_link_info *info, | |
2855 | bfd *input_bfd, | |
2856 | asection *input_section, | |
2857 | bfd_byte *contents, | |
2858 | Elf_Internal_Rela *relocs, | |
2859 | Elf_Internal_Sym *local_syms, | |
2860 | asection **local_sections) | |
22b75d0a DM |
2861 | { |
2862 | struct _bfd_sparc_elf_link_hash_table *htab; | |
2863 | Elf_Internal_Shdr *symtab_hdr; | |
2864 | struct elf_link_hash_entry **sym_hashes; | |
2865 | bfd_vma *local_got_offsets; | |
2866 | bfd_vma got_base; | |
2867 | asection *sreloc; | |
2868 | Elf_Internal_Rela *rel; | |
2869 | Elf_Internal_Rela *relend; | |
2870 | int num_relocs; | |
3348747a | 2871 | bfd_boolean is_vxworks_tls; |
22b75d0a | 2872 | |
22b75d0a | 2873 | htab = _bfd_sparc_elf_hash_table (info); |
4dfe6ac6 | 2874 | BFD_ASSERT (htab != NULL); |
0ffa91dd | 2875 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
22b75d0a DM |
2876 | sym_hashes = elf_sym_hashes (input_bfd); |
2877 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
2878 | ||
2879 | if (elf_hash_table (info)->hgot == NULL) | |
2880 | got_base = 0; | |
2881 | else | |
2882 | got_base = elf_hash_table (info)->hgot->root.u.def.value; | |
2883 | ||
2884 | sreloc = elf_section_data (input_section)->sreloc; | |
3348747a NS |
2885 | /* We have to handle relocations in vxworks .tls_vars sections |
2886 | specially, because the dynamic loader is 'weird'. */ | |
2887 | is_vxworks_tls = (htab->is_vxworks && info->shared | |
2888 | && !strcmp (input_section->output_section->name, | |
2889 | ".tls_vars")); | |
22b75d0a DM |
2890 | |
2891 | rel = relocs; | |
2892 | if (ABI_64_P (output_bfd)) | |
d4730f92 | 2893 | num_relocs = NUM_SHDR_ENTRIES (_bfd_elf_single_rel_hdr (input_section)); |
22b75d0a DM |
2894 | else |
2895 | num_relocs = input_section->reloc_count; | |
2896 | relend = relocs + num_relocs; | |
2897 | for (; rel < relend; rel++) | |
2898 | { | |
2899 | int r_type, tls_type; | |
2900 | reloc_howto_type *howto; | |
2901 | unsigned long r_symndx; | |
2902 | struct elf_link_hash_entry *h; | |
2903 | Elf_Internal_Sym *sym; | |
2904 | asection *sec; | |
2905 | bfd_vma relocation, off; | |
2906 | bfd_reloc_status_type r; | |
2907 | bfd_boolean is_plt = FALSE; | |
2908 | bfd_boolean unresolved_reloc; | |
2909 | ||
2910 | r_type = SPARC_ELF_R_TYPE (rel->r_info); | |
2911 | if (r_type == R_SPARC_GNU_VTINHERIT | |
2912 | || r_type == R_SPARC_GNU_VTENTRY) | |
2913 | continue; | |
2914 | ||
2915 | if (r_type < 0 || r_type >= (int) R_SPARC_max_std) | |
2916 | { | |
2917 | bfd_set_error (bfd_error_bad_value); | |
2918 | return FALSE; | |
2919 | } | |
2920 | howto = _bfd_sparc_elf_howto_table + r_type; | |
2921 | ||
22b75d0a DM |
2922 | r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info); |
2923 | h = NULL; | |
2924 | sym = NULL; | |
2925 | sec = NULL; | |
2926 | unresolved_reloc = FALSE; | |
2927 | if (r_symndx < symtab_hdr->sh_info) | |
2928 | { | |
2929 | sym = local_syms + r_symndx; | |
2930 | sec = local_sections[r_symndx]; | |
2931 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
d0c9aeb3 DM |
2932 | |
2933 | if (!info->relocatable | |
2934 | && ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
2935 | { | |
2936 | /* Relocate against local STT_GNU_IFUNC symbol. */ | |
2937 | h = elf_sparc_get_local_sym_hash (htab, input_bfd, | |
2938 | rel, FALSE); | |
2939 | if (h == NULL) | |
2940 | abort (); | |
2941 | ||
2942 | /* Set STT_GNU_IFUNC symbol value. */ | |
2943 | h->root.u.def.value = sym->st_value; | |
2944 | h->root.u.def.section = sec; | |
2945 | } | |
22b75d0a DM |
2946 | } |
2947 | else | |
2948 | { | |
2949 | bfd_boolean warned; | |
2950 | ||
2951 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
2952 | r_symndx, symtab_hdr, sym_hashes, | |
2953 | h, sec, relocation, | |
2954 | unresolved_reloc, warned); | |
2955 | if (warned) | |
2956 | { | |
2957 | /* To avoid generating warning messages about truncated | |
2958 | relocations, set the relocation's address to be the same as | |
2959 | the start of this section. */ | |
2960 | if (input_section->output_section != NULL) | |
2961 | relocation = input_section->output_section->vma; | |
2962 | else | |
2963 | relocation = 0; | |
2964 | } | |
2965 | } | |
2966 | ||
ab96bf03 | 2967 | if (sec != NULL && elf_discarded_section (sec)) |
e4067dbb DJ |
2968 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
2969 | rel, relend, howto, contents); | |
ab96bf03 AM |
2970 | |
2971 | if (info->relocatable) | |
2972 | continue; | |
2973 | ||
d0c9aeb3 DM |
2974 | if (h != NULL |
2975 | && h->type == STT_GNU_IFUNC | |
2976 | && h->def_regular) | |
2977 | { | |
2978 | asection *plt_sec; | |
2979 | const char *name; | |
2980 | ||
2981 | if ((input_section->flags & SEC_ALLOC) == 0 | |
2982 | || h->plt.offset == (bfd_vma) -1) | |
2983 | abort (); | |
2984 | ||
2985 | plt_sec = htab->elf.splt; | |
2986 | if (! plt_sec) | |
2987 | plt_sec =htab->elf.iplt; | |
2988 | ||
2989 | switch (r_type) | |
2990 | { | |
00c50991 DM |
2991 | case R_SPARC_GOTDATA_OP: |
2992 | continue; | |
2993 | ||
d0c9aeb3 DM |
2994 | case R_SPARC_GOTDATA_OP_HIX22: |
2995 | case R_SPARC_GOTDATA_OP_LOX10: | |
00c50991 DM |
2996 | r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22 |
2997 | ? R_SPARC_GOT22 | |
2998 | : R_SPARC_GOT10); | |
2999 | howto = _bfd_sparc_elf_howto_table + r_type; | |
3000 | /* Fall through. */ | |
3001 | ||
d0c9aeb3 DM |
3002 | case R_SPARC_GOT10: |
3003 | case R_SPARC_GOT13: | |
3004 | case R_SPARC_GOT22: | |
3005 | if (htab->elf.sgot == NULL) | |
3006 | abort (); | |
3007 | off = h->got.offset; | |
3008 | if (off == (bfd_vma) -1) | |
3009 | abort(); | |
3010 | relocation = htab->elf.sgot->output_offset + off - got_base; | |
3011 | goto do_relocation; | |
3012 | ||
3013 | case R_SPARC_WPLT30: | |
3014 | case R_SPARC_WDISP30: | |
3015 | relocation = (plt_sec->output_section->vma | |
3016 | + plt_sec->output_offset + h->plt.offset); | |
3017 | goto do_relocation; | |
3018 | ||
3019 | case R_SPARC_32: | |
3020 | case R_SPARC_64: | |
3021 | if (info->shared && h->non_got_ref) | |
3022 | { | |
3023 | Elf_Internal_Rela outrel; | |
3024 | bfd_vma offset; | |
3025 | ||
3026 | offset = _bfd_elf_section_offset (output_bfd, info, | |
3027 | input_section, | |
3028 | rel->r_offset); | |
3029 | if (offset == (bfd_vma) -1 | |
3030 | || offset == (bfd_vma) -2) | |
3031 | abort(); | |
3032 | ||
3033 | outrel.r_offset = (input_section->output_section->vma | |
3034 | + input_section->output_offset | |
3035 | + offset); | |
3036 | ||
3037 | if (h->dynindx == -1 | |
3038 | || h->forced_local | |
3039 | || info->executable) | |
3040 | { | |
3041 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, | |
3042 | 0, R_SPARC_IRELATIVE); | |
3043 | outrel.r_addend = relocation + rel->r_addend; | |
3044 | } | |
3045 | else | |
3046 | { | |
3047 | if (h->dynindx == -1) | |
3048 | abort(); | |
3049 | outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type); | |
3050 | outrel.r_addend = rel->r_addend; | |
3051 | } | |
3052 | ||
3053 | sparc_elf_append_rela (output_bfd, sreloc, &outrel); | |
3054 | continue; | |
3055 | } | |
3056 | ||
3057 | relocation = (plt_sec->output_section->vma | |
3058 | + plt_sec->output_offset + h->plt.offset); | |
3059 | goto do_relocation; | |
3060 | ||
3061 | case R_SPARC_HI22: | |
3062 | case R_SPARC_LO10: | |
3063 | /* We should only see such relocs in static links. */ | |
3064 | if (info->shared) | |
3065 | abort(); | |
3066 | relocation = (plt_sec->output_section->vma | |
3067 | + plt_sec->output_offset + h->plt.offset); | |
3068 | goto do_relocation; | |
3069 | ||
3070 | default: | |
3071 | if (h->root.root.string) | |
3072 | name = h->root.root.string; | |
3073 | else | |
3074 | name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, | |
3075 | NULL); | |
3076 | (*_bfd_error_handler) | |
3077 | (_("%B: relocation %s against STT_GNU_IFUNC " | |
3078 | "symbol `%s' isn't handled by %s"), input_bfd, | |
3079 | _bfd_sparc_elf_howto_table[r_type].name, | |
3080 | name, __FUNCTION__); | |
3081 | bfd_set_error (bfd_error_bad_value); | |
3082 | return FALSE; | |
3083 | } | |
3084 | } | |
3085 | ||
22b75d0a DM |
3086 | switch (r_type) |
3087 | { | |
739f7f82 DM |
3088 | case R_SPARC_GOTDATA_OP_HIX22: |
3089 | case R_SPARC_GOTDATA_OP_LOX10: | |
00c50991 DM |
3090 | if (SYMBOL_REFERENCES_LOCAL (info, h)) |
3091 | r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22 | |
3092 | ? R_SPARC_GOTDATA_HIX22 | |
3093 | : R_SPARC_GOTDATA_LOX10); | |
739f7f82 | 3094 | else |
00c50991 DM |
3095 | r_type = (r_type == R_SPARC_GOTDATA_OP_HIX22 |
3096 | ? R_SPARC_GOT22 | |
3097 | : R_SPARC_GOT10); | |
3098 | howto = _bfd_sparc_elf_howto_table + r_type; | |
3099 | break; | |
3100 | ||
3101 | case R_SPARC_GOTDATA_OP: | |
3102 | if (SYMBOL_REFERENCES_LOCAL (info, h)) | |
3103 | { | |
3104 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3105 | ||
3106 | /* {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd */ | |
3107 | relocation = 0x80000000 | (insn & 0x3e07c01f); | |
3108 | bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); | |
3109 | } | |
3110 | continue; | |
3111 | } | |
3112 | ||
3113 | switch (r_type) | |
3114 | { | |
3115 | case R_SPARC_GOTDATA_HIX22: | |
3116 | case R_SPARC_GOTDATA_LOX10: | |
3117 | relocation = gdopoff (info, relocation); | |
3118 | break; | |
739f7f82 | 3119 | |
22b75d0a DM |
3120 | case R_SPARC_GOT10: |
3121 | case R_SPARC_GOT13: | |
3122 | case R_SPARC_GOT22: | |
3123 | /* Relocation is to the entry for this symbol in the global | |
3124 | offset table. */ | |
72fbc6e5 | 3125 | if (htab->elf.sgot == NULL) |
22b75d0a DM |
3126 | abort (); |
3127 | ||
3128 | if (h != NULL) | |
3129 | { | |
3130 | bfd_boolean dyn; | |
3131 | ||
3132 | off = h->got.offset; | |
3133 | BFD_ASSERT (off != (bfd_vma) -1); | |
3134 | dyn = elf_hash_table (info)->dynamic_sections_created; | |
3135 | ||
3136 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) | |
3137 | || (info->shared | |
72fbc6e5 | 3138 | && SYMBOL_REFERENCES_LOCAL (info, h))) |
22b75d0a DM |
3139 | { |
3140 | /* This is actually a static link, or it is a | |
3141 | -Bsymbolic link and the symbol is defined | |
3142 | locally, or the symbol was forced to be local | |
3143 | because of a version file. We must initialize | |
3144 | this entry in the global offset table. Since the | |
3145 | offset must always be a multiple of 8 for 64-bit | |
3146 | and 4 for 32-bit, we use the least significant bit | |
3147 | to record whether we have initialized it already. | |
3148 | ||
3149 | When doing a dynamic link, we create a .rela.got | |
3150 | relocation entry to initialize the value. This | |
3151 | is done in the finish_dynamic_symbol routine. */ | |
3152 | if ((off & 1) != 0) | |
3153 | off &= ~1; | |
3154 | else | |
3155 | { | |
3156 | SPARC_ELF_PUT_WORD (htab, output_bfd, relocation, | |
72fbc6e5 | 3157 | htab->elf.sgot->contents + off); |
22b75d0a DM |
3158 | h->got.offset |= 1; |
3159 | } | |
3160 | } | |
3161 | else | |
3162 | unresolved_reloc = FALSE; | |
3163 | } | |
3164 | else | |
3165 | { | |
3166 | BFD_ASSERT (local_got_offsets != NULL | |
3167 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
3168 | ||
3169 | off = local_got_offsets[r_symndx]; | |
3170 | ||
3171 | /* The offset must always be a multiple of 8 on 64-bit and | |
3172 | 4 on 32-bit. We use the least significant bit to record | |
3173 | whether we have already processed this entry. */ | |
3174 | if ((off & 1) != 0) | |
3175 | off &= ~1; | |
3176 | else | |
3177 | { | |
3178 | ||
3179 | if (info->shared) | |
3180 | { | |
3181 | asection *s; | |
3182 | Elf_Internal_Rela outrel; | |
3183 | ||
3184 | /* We need to generate a R_SPARC_RELATIVE reloc | |
3185 | for the dynamic linker. */ | |
72fbc6e5 | 3186 | s = htab->elf.srelgot; |
22b75d0a DM |
3187 | BFD_ASSERT (s != NULL); |
3188 | ||
72fbc6e5 DM |
3189 | outrel.r_offset = (htab->elf.sgot->output_section->vma |
3190 | + htab->elf.sgot->output_offset | |
22b75d0a DM |
3191 | + off); |
3192 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, | |
3193 | 0, R_SPARC_RELATIVE); | |
3194 | outrel.r_addend = relocation; | |
3195 | relocation = 0; | |
39817122 | 3196 | sparc_elf_append_rela (output_bfd, s, &outrel); |
22b75d0a DM |
3197 | } |
3198 | ||
3199 | SPARC_ELF_PUT_WORD (htab, output_bfd, relocation, | |
72fbc6e5 | 3200 | htab->elf.sgot->contents + off); |
22b75d0a DM |
3201 | local_got_offsets[r_symndx] |= 1; |
3202 | } | |
3203 | } | |
72fbc6e5 | 3204 | relocation = htab->elf.sgot->output_offset + off - got_base; |
22b75d0a DM |
3205 | break; |
3206 | ||
3207 | case R_SPARC_PLT32: | |
3208 | case R_SPARC_PLT64: | |
3209 | if (h == NULL || h->plt.offset == (bfd_vma) -1) | |
3210 | { | |
3211 | r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64; | |
3212 | goto r_sparc_plt32; | |
3213 | } | |
3214 | /* Fall through. */ | |
3215 | ||
3216 | case R_SPARC_WPLT30: | |
3217 | case R_SPARC_HIPLT22: | |
3218 | case R_SPARC_LOPLT10: | |
3219 | case R_SPARC_PCPLT32: | |
3220 | case R_SPARC_PCPLT22: | |
3221 | case R_SPARC_PCPLT10: | |
3222 | r_sparc_wplt30: | |
3223 | /* Relocation is to the entry for this symbol in the | |
3224 | procedure linkage table. */ | |
3225 | ||
3226 | if (! ABI_64_P (output_bfd)) | |
3227 | { | |
3228 | /* The Solaris native assembler will generate a WPLT30 reloc | |
3229 | for a local symbol if you assemble a call from one | |
3230 | section to another when using -K pic. We treat it as | |
3231 | WDISP30. */ | |
3232 | if (h == NULL) | |
3233 | break; | |
3234 | } | |
af1fb11f NC |
3235 | /* PR 7027: We need similar behaviour for 64-bit binaries. */ |
3236 | else if (r_type == R_SPARC_WPLT30 && h == NULL) | |
3237 | break; | |
22b75d0a DM |
3238 | else |
3239 | { | |
3240 | BFD_ASSERT (h != NULL); | |
3241 | } | |
3242 | ||
72fbc6e5 | 3243 | if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL) |
22b75d0a DM |
3244 | { |
3245 | /* We didn't make a PLT entry for this symbol. This | |
3246 | happens when statically linking PIC code, or when | |
3247 | using -Bsymbolic. */ | |
3248 | break; | |
3249 | } | |
3250 | ||
72fbc6e5 DM |
3251 | relocation = (htab->elf.splt->output_section->vma |
3252 | + htab->elf.splt->output_offset | |
22b75d0a DM |
3253 | + h->plt.offset); |
3254 | unresolved_reloc = FALSE; | |
3255 | if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64) | |
3256 | { | |
3257 | r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64; | |
3258 | is_plt = TRUE; | |
3259 | goto r_sparc_plt32; | |
3260 | } | |
3261 | break; | |
3262 | ||
3263 | case R_SPARC_PC10: | |
3264 | case R_SPARC_PC22: | |
3265 | case R_SPARC_PC_HH22: | |
3266 | case R_SPARC_PC_HM10: | |
3267 | case R_SPARC_PC_LM22: | |
3268 | if (h != NULL | |
3269 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
3270 | break; | |
3271 | /* Fall through. */ | |
3272 | case R_SPARC_DISP8: | |
3273 | case R_SPARC_DISP16: | |
3274 | case R_SPARC_DISP32: | |
3275 | case R_SPARC_DISP64: | |
3276 | case R_SPARC_WDISP30: | |
3277 | case R_SPARC_WDISP22: | |
3278 | case R_SPARC_WDISP19: | |
3279 | case R_SPARC_WDISP16: | |
3280 | case R_SPARC_8: | |
3281 | case R_SPARC_16: | |
3282 | case R_SPARC_32: | |
3283 | case R_SPARC_HI22: | |
3284 | case R_SPARC_22: | |
3285 | case R_SPARC_13: | |
3286 | case R_SPARC_LO10: | |
3287 | case R_SPARC_UA16: | |
3288 | case R_SPARC_UA32: | |
3289 | case R_SPARC_10: | |
3290 | case R_SPARC_11: | |
3291 | case R_SPARC_64: | |
3292 | case R_SPARC_OLO10: | |
3293 | case R_SPARC_HH22: | |
3294 | case R_SPARC_HM10: | |
3295 | case R_SPARC_LM22: | |
3296 | case R_SPARC_7: | |
3297 | case R_SPARC_5: | |
3298 | case R_SPARC_6: | |
3299 | case R_SPARC_HIX22: | |
3300 | case R_SPARC_LOX10: | |
3301 | case R_SPARC_H44: | |
3302 | case R_SPARC_M44: | |
3303 | case R_SPARC_L44: | |
3304 | case R_SPARC_UA64: | |
3305 | r_sparc_plt32: | |
3348747a NS |
3306 | if ((input_section->flags & SEC_ALLOC) == 0 |
3307 | || is_vxworks_tls) | |
22b75d0a DM |
3308 | break; |
3309 | ||
3310 | if ((info->shared | |
3311 | && (h == NULL | |
3312 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
3313 | || h->root.type != bfd_link_hash_undefweak) | |
3314 | && (! howto->pc_relative | |
72fbc6e5 | 3315 | || !SYMBOL_CALLS_LOCAL (info, h))) |
22b75d0a DM |
3316 | || (!info->shared |
3317 | && h != NULL | |
3318 | && h->dynindx != -1 | |
3319 | && !h->non_got_ref | |
3320 | && ((h->def_dynamic | |
3321 | && !h->def_regular) | |
3322 | || h->root.type == bfd_link_hash_undefweak | |
3323 | || h->root.type == bfd_link_hash_undefined))) | |
3324 | { | |
3325 | Elf_Internal_Rela outrel; | |
3326 | bfd_boolean skip, relocate = FALSE; | |
3327 | ||
3328 | /* When generating a shared object, these relocations | |
3329 | are copied into the output file to be resolved at run | |
3330 | time. */ | |
3331 | ||
3332 | BFD_ASSERT (sreloc != NULL); | |
3333 | ||
3334 | skip = FALSE; | |
3335 | ||
3336 | outrel.r_offset = | |
3337 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
3338 | rel->r_offset); | |
3339 | if (outrel.r_offset == (bfd_vma) -1) | |
3340 | skip = TRUE; | |
3341 | else if (outrel.r_offset == (bfd_vma) -2) | |
3342 | skip = TRUE, relocate = TRUE; | |
3343 | outrel.r_offset += (input_section->output_section->vma | |
3344 | + input_section->output_offset); | |
3345 | ||
3346 | /* Optimize unaligned reloc usage now that we know where | |
3347 | it finally resides. */ | |
3348 | switch (r_type) | |
3349 | { | |
3350 | case R_SPARC_16: | |
3351 | if (outrel.r_offset & 1) | |
3352 | r_type = R_SPARC_UA16; | |
3353 | break; | |
3354 | case R_SPARC_UA16: | |
3355 | if (!(outrel.r_offset & 1)) | |
3356 | r_type = R_SPARC_16; | |
3357 | break; | |
3358 | case R_SPARC_32: | |
3359 | if (outrel.r_offset & 3) | |
3360 | r_type = R_SPARC_UA32; | |
3361 | break; | |
3362 | case R_SPARC_UA32: | |
3363 | if (!(outrel.r_offset & 3)) | |
3364 | r_type = R_SPARC_32; | |
3365 | break; | |
3366 | case R_SPARC_64: | |
3367 | if (outrel.r_offset & 7) | |
3368 | r_type = R_SPARC_UA64; | |
3369 | break; | |
3370 | case R_SPARC_UA64: | |
3371 | if (!(outrel.r_offset & 7)) | |
3372 | r_type = R_SPARC_64; | |
3373 | break; | |
3374 | case R_SPARC_DISP8: | |
3375 | case R_SPARC_DISP16: | |
3376 | case R_SPARC_DISP32: | |
3377 | case R_SPARC_DISP64: | |
3378 | /* If the symbol is not dynamic, we should not keep | |
3379 | a dynamic relocation. But an .rela.* slot has been | |
3380 | allocated for it, output R_SPARC_NONE. | |
3381 | FIXME: Add code tracking needed dynamic relocs as | |
3382 | e.g. i386 has. */ | |
3383 | if (h->dynindx == -1) | |
3384 | skip = TRUE, relocate = TRUE; | |
3385 | break; | |
3386 | } | |
3387 | ||
3388 | if (skip) | |
3389 | memset (&outrel, 0, sizeof outrel); | |
3390 | /* h->dynindx may be -1 if the symbol was marked to | |
3391 | become local. */ | |
72fbc6e5 DM |
3392 | else if (h != NULL && |
3393 | h->dynindx != -1 | |
3394 | && (! is_plt | |
3395 | || !info->shared | |
3396 | || !SYMBOLIC_BIND (info, h) | |
22b75d0a DM |
3397 | || !h->def_regular)) |
3398 | { | |
3399 | BFD_ASSERT (h->dynindx != -1); | |
3400 | outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type); | |
3401 | outrel.r_addend = rel->r_addend; | |
3402 | } | |
3403 | else | |
3404 | { | |
3405 | if (r_type == R_SPARC_32 || r_type == R_SPARC_64) | |
3406 | { | |
3407 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, | |
3408 | 0, R_SPARC_RELATIVE); | |
3409 | outrel.r_addend = relocation + rel->r_addend; | |
3410 | } | |
3411 | else | |
3412 | { | |
3413 | long indx; | |
3414 | ||
74541ad4 AM |
3415 | outrel.r_addend = relocation + rel->r_addend; |
3416 | ||
22b75d0a | 3417 | if (is_plt) |
72fbc6e5 | 3418 | sec = htab->elf.splt; |
22b75d0a DM |
3419 | |
3420 | if (bfd_is_abs_section (sec)) | |
3421 | indx = 0; | |
3422 | else if (sec == NULL || sec->owner == NULL) | |
3423 | { | |
3424 | bfd_set_error (bfd_error_bad_value); | |
3425 | return FALSE; | |
3426 | } | |
3427 | else | |
3428 | { | |
3429 | asection *osec; | |
3430 | ||
74541ad4 AM |
3431 | /* We are turning this relocation into one |
3432 | against a section symbol. It would be | |
3433 | proper to subtract the symbol's value, | |
3434 | osec->vma, from the emitted reloc addend, | |
3435 | but ld.so expects buggy relocs. */ | |
22b75d0a DM |
3436 | osec = sec->output_section; |
3437 | indx = elf_section_data (osec)->dynindx; | |
3438 | ||
74541ad4 AM |
3439 | if (indx == 0) |
3440 | { | |
3441 | osec = htab->elf.text_index_section; | |
3442 | indx = elf_section_data (osec)->dynindx; | |
3443 | } | |
3444 | ||
22b75d0a DM |
3445 | /* FIXME: we really should be able to link non-pic |
3446 | shared libraries. */ | |
3447 | if (indx == 0) | |
3448 | { | |
3449 | BFD_FAIL (); | |
3450 | (*_bfd_error_handler) | |
3451 | (_("%B: probably compiled without -fPIC?"), | |
3452 | input_bfd); | |
3453 | bfd_set_error (bfd_error_bad_value); | |
3454 | return FALSE; | |
3455 | } | |
3456 | } | |
3457 | ||
74541ad4 AM |
3458 | outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx, |
3459 | r_type); | |
22b75d0a DM |
3460 | } |
3461 | } | |
3462 | ||
39817122 | 3463 | sparc_elf_append_rela (output_bfd, sreloc, &outrel); |
22b75d0a DM |
3464 | |
3465 | /* This reloc will be computed at runtime, so there's no | |
3466 | need to do anything now. */ | |
3467 | if (! relocate) | |
3468 | continue; | |
3469 | } | |
3470 | break; | |
3471 | ||
3472 | case R_SPARC_TLS_GD_HI22: | |
3473 | if (! ABI_64_P (input_bfd) | |
3474 | && ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd) | |
3475 | { | |
3476 | /* R_SPARC_REV32 used the same reloc number as | |
3477 | R_SPARC_TLS_GD_HI22. */ | |
3478 | r_type = R_SPARC_REV32; | |
3479 | break; | |
3480 | } | |
3481 | /* Fall through */ | |
3482 | ||
3483 | case R_SPARC_TLS_GD_LO10: | |
3484 | case R_SPARC_TLS_IE_HI22: | |
3485 | case R_SPARC_TLS_IE_LO10: | |
3486 | r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL); | |
3487 | tls_type = GOT_UNKNOWN; | |
3488 | if (h == NULL && local_got_offsets) | |
3489 | tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx]; | |
3490 | else if (h != NULL) | |
3491 | { | |
3492 | tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type; | |
3493 | if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE) | |
3494 | switch (SPARC_ELF_R_TYPE (rel->r_info)) | |
3495 | { | |
3496 | case R_SPARC_TLS_GD_HI22: | |
3497 | case R_SPARC_TLS_IE_HI22: | |
3498 | r_type = R_SPARC_TLS_LE_HIX22; | |
3499 | break; | |
3500 | default: | |
3501 | r_type = R_SPARC_TLS_LE_LOX10; | |
3502 | break; | |
3503 | } | |
3504 | } | |
3505 | if (tls_type == GOT_TLS_IE) | |
3506 | switch (r_type) | |
3507 | { | |
3508 | case R_SPARC_TLS_GD_HI22: | |
3509 | r_type = R_SPARC_TLS_IE_HI22; | |
3510 | break; | |
3511 | case R_SPARC_TLS_GD_LO10: | |
3512 | r_type = R_SPARC_TLS_IE_LO10; | |
3513 | break; | |
3514 | } | |
3515 | ||
3516 | if (r_type == R_SPARC_TLS_LE_HIX22) | |
3517 | { | |
3518 | relocation = tpoff (info, relocation); | |
3519 | break; | |
3520 | } | |
3521 | if (r_type == R_SPARC_TLS_LE_LOX10) | |
3522 | { | |
3523 | /* Change add into xor. */ | |
3524 | relocation = tpoff (info, relocation); | |
3525 | bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd, | |
3526 | contents + rel->r_offset) | |
3527 | | 0x80182000), contents + rel->r_offset); | |
3528 | break; | |
3529 | } | |
3530 | ||
3531 | if (h != NULL) | |
3532 | { | |
3533 | off = h->got.offset; | |
3534 | h->got.offset |= 1; | |
3535 | } | |
3536 | else | |
3537 | { | |
3538 | BFD_ASSERT (local_got_offsets != NULL); | |
3539 | off = local_got_offsets[r_symndx]; | |
3540 | local_got_offsets[r_symndx] |= 1; | |
3541 | } | |
3542 | ||
3543 | r_sparc_tlsldm: | |
72fbc6e5 | 3544 | if (htab->elf.sgot == NULL) |
22b75d0a DM |
3545 | abort (); |
3546 | ||
3547 | if ((off & 1) != 0) | |
3548 | off &= ~1; | |
3549 | else | |
3550 | { | |
3551 | Elf_Internal_Rela outrel; | |
3552 | int dr_type, indx; | |
3553 | ||
72fbc6e5 | 3554 | if (htab->elf.srelgot == NULL) |
22b75d0a DM |
3555 | abort (); |
3556 | ||
72fbc6e5 DM |
3557 | SPARC_ELF_PUT_WORD (htab, output_bfd, 0, |
3558 | htab->elf.sgot->contents + off); | |
3559 | outrel.r_offset = (htab->elf.sgot->output_section->vma | |
3560 | + htab->elf.sgot->output_offset + off); | |
22b75d0a DM |
3561 | indx = h && h->dynindx != -1 ? h->dynindx : 0; |
3562 | if (r_type == R_SPARC_TLS_IE_HI22 | |
3563 | || r_type == R_SPARC_TLS_IE_LO10) | |
3564 | dr_type = SPARC_ELF_TPOFF_RELOC (htab); | |
3565 | else | |
3566 | dr_type = SPARC_ELF_DTPMOD_RELOC (htab); | |
3567 | if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0) | |
3568 | outrel.r_addend = relocation - dtpoff_base (info); | |
3569 | else | |
3570 | outrel.r_addend = 0; | |
3571 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type); | |
72fbc6e5 | 3572 | sparc_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel); |
22b75d0a DM |
3573 | |
3574 | if (r_type == R_SPARC_TLS_GD_HI22 | |
3575 | || r_type == R_SPARC_TLS_GD_LO10) | |
3576 | { | |
3577 | if (indx == 0) | |
3578 | { | |
3579 | BFD_ASSERT (! unresolved_reloc); | |
3580 | SPARC_ELF_PUT_WORD (htab, output_bfd, | |
3581 | relocation - dtpoff_base (info), | |
72fbc6e5 | 3582 | (htab->elf.sgot->contents + off |
22b75d0a DM |
3583 | + SPARC_ELF_WORD_BYTES (htab))); |
3584 | } | |
3585 | else | |
3586 | { | |
3587 | SPARC_ELF_PUT_WORD (htab, output_bfd, 0, | |
72fbc6e5 | 3588 | (htab->elf.sgot->contents + off |
22b75d0a DM |
3589 | + SPARC_ELF_WORD_BYTES (htab))); |
3590 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, | |
3591 | SPARC_ELF_DTPOFF_RELOC (htab)); | |
3592 | outrel.r_offset += SPARC_ELF_WORD_BYTES (htab); | |
72fbc6e5 | 3593 | sparc_elf_append_rela (output_bfd, htab->elf.srelgot, |
39817122 | 3594 | &outrel); |
22b75d0a DM |
3595 | } |
3596 | } | |
3597 | else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab)) | |
3598 | { | |
3599 | SPARC_ELF_PUT_WORD (htab, output_bfd, 0, | |
72fbc6e5 | 3600 | (htab->elf.sgot->contents + off |
22b75d0a DM |
3601 | + SPARC_ELF_WORD_BYTES (htab))); |
3602 | } | |
3603 | } | |
3604 | ||
3605 | if (off >= (bfd_vma) -2) | |
3606 | abort (); | |
3607 | ||
72fbc6e5 | 3608 | relocation = htab->elf.sgot->output_offset + off - got_base; |
22b75d0a DM |
3609 | unresolved_reloc = FALSE; |
3610 | howto = _bfd_sparc_elf_howto_table + r_type; | |
3611 | break; | |
3612 | ||
3613 | case R_SPARC_TLS_LDM_HI22: | |
3614 | case R_SPARC_TLS_LDM_LO10: | |
3615 | if (! info->shared) | |
3616 | { | |
3617 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); | |
3618 | continue; | |
3619 | } | |
3620 | off = htab->tls_ldm_got.offset; | |
3621 | htab->tls_ldm_got.offset |= 1; | |
3622 | goto r_sparc_tlsldm; | |
3623 | ||
3624 | case R_SPARC_TLS_LDO_HIX22: | |
3625 | case R_SPARC_TLS_LDO_LOX10: | |
3626 | if (info->shared) | |
3627 | { | |
3628 | relocation -= dtpoff_base (info); | |
3629 | break; | |
3630 | } | |
3631 | ||
3632 | r_type = (r_type == R_SPARC_TLS_LDO_HIX22 | |
3633 | ? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10); | |
3634 | /* Fall through. */ | |
3635 | ||
3636 | case R_SPARC_TLS_LE_HIX22: | |
3637 | case R_SPARC_TLS_LE_LOX10: | |
3638 | if (info->shared) | |
3639 | { | |
3640 | Elf_Internal_Rela outrel; | |
c7e2358a | 3641 | bfd_boolean skip; |
22b75d0a DM |
3642 | |
3643 | BFD_ASSERT (sreloc != NULL); | |
3644 | skip = FALSE; | |
3645 | outrel.r_offset = | |
3646 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
3647 | rel->r_offset); | |
3648 | if (outrel.r_offset == (bfd_vma) -1) | |
3649 | skip = TRUE; | |
3650 | else if (outrel.r_offset == (bfd_vma) -2) | |
c7e2358a | 3651 | skip = TRUE; |
22b75d0a DM |
3652 | outrel.r_offset += (input_section->output_section->vma |
3653 | + input_section->output_offset); | |
3654 | if (skip) | |
3655 | memset (&outrel, 0, sizeof outrel); | |
3656 | else | |
3657 | { | |
3658 | outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type); | |
3659 | outrel.r_addend = relocation - dtpoff_base (info) | |
3660 | + rel->r_addend; | |
3661 | } | |
3662 | ||
39817122 | 3663 | sparc_elf_append_rela (output_bfd, sreloc, &outrel); |
22b75d0a DM |
3664 | continue; |
3665 | } | |
3666 | relocation = tpoff (info, relocation); | |
3667 | break; | |
3668 | ||
3669 | case R_SPARC_TLS_LDM_CALL: | |
3670 | if (! info->shared) | |
3671 | { | |
3672 | /* mov %g0, %o0 */ | |
3673 | bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset); | |
3674 | continue; | |
3675 | } | |
3676 | /* Fall through */ | |
3677 | ||
3678 | case R_SPARC_TLS_GD_CALL: | |
3679 | tls_type = GOT_UNKNOWN; | |
3680 | if (h == NULL && local_got_offsets) | |
3681 | tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx]; | |
3682 | else if (h != NULL) | |
3683 | tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type; | |
3684 | if (! info->shared | |
3685 | || (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE)) | |
3686 | { | |
3687 | bfd_vma insn; | |
3688 | ||
3689 | if (!info->shared && (h == NULL || h->dynindx == -1)) | |
3690 | { | |
3691 | /* GD -> LE */ | |
3692 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); | |
3693 | continue; | |
3694 | } | |
3695 | ||
3696 | /* GD -> IE */ | |
3697 | if (rel + 1 < relend | |
3698 | && SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD | |
3699 | && rel[1].r_offset == rel->r_offset + 4 | |
3700 | && SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx | |
3701 | && (((insn = bfd_get_32 (input_bfd, | |
3702 | contents + rel[1].r_offset)) | |
3703 | >> 25) & 0x1f) == 8) | |
3704 | { | |
3705 | /* We have | |
3706 | call __tls_get_addr, %tgd_call(foo) | |
3707 | add %reg1, %reg2, %o0, %tgd_add(foo) | |
3708 | and change it into IE: | |
3709 | {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo) | |
3710 | add %g7, %o0, %o0, %tie_add(foo). | |
3711 | add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2, | |
3712 | ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2, | |
3713 | ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */ | |
3714 | bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000), | |
3715 | contents + rel->r_offset); | |
3716 | bfd_put_32 (output_bfd, 0x9001c008, | |
3717 | contents + rel->r_offset + 4); | |
3718 | rel++; | |
3719 | continue; | |
3720 | } | |
3721 | ||
3722 | bfd_put_32 (output_bfd, 0x9001c008, contents + rel->r_offset); | |
3723 | continue; | |
3724 | } | |
3725 | ||
3726 | h = (struct elf_link_hash_entry *) | |
3727 | bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE, | |
3728 | FALSE, TRUE); | |
3729 | BFD_ASSERT (h != NULL); | |
3730 | r_type = R_SPARC_WPLT30; | |
3731 | howto = _bfd_sparc_elf_howto_table + r_type; | |
3732 | goto r_sparc_wplt30; | |
3733 | ||
3734 | case R_SPARC_TLS_GD_ADD: | |
3735 | tls_type = GOT_UNKNOWN; | |
3736 | if (h == NULL && local_got_offsets) | |
3737 | tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx]; | |
3738 | else if (h != NULL) | |
3739 | tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type; | |
3740 | if (! info->shared || tls_type == GOT_TLS_IE) | |
3741 | { | |
3742 | /* add %reg1, %reg2, %reg3, %tgd_add(foo) | |
3743 | changed into IE: | |
3744 | {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo) | |
3745 | or LE: | |
3746 | add %g7, %reg2, %reg3. */ | |
3747 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3748 | if ((h != NULL && h->dynindx != -1) || info->shared) | |
3749 | relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000); | |
3750 | else | |
3751 | relocation = (insn & ~0x7c000) | 0x1c000; | |
3752 | bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); | |
3753 | } | |
3754 | continue; | |
3755 | ||
3756 | case R_SPARC_TLS_LDM_ADD: | |
3757 | if (! info->shared) | |
3758 | bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset); | |
3759 | continue; | |
3760 | ||
3761 | case R_SPARC_TLS_LDO_ADD: | |
3762 | if (! info->shared) | |
3763 | { | |
3764 | /* Change rs1 into %g7. */ | |
3765 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3766 | insn = (insn & ~0x7c000) | 0x1c000; | |
3767 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
3768 | } | |
3769 | continue; | |
3770 | ||
3771 | case R_SPARC_TLS_IE_LD: | |
3772 | case R_SPARC_TLS_IE_LDX: | |
3773 | if (! info->shared && (h == NULL || h->dynindx == -1)) | |
3774 | { | |
3775 | bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3776 | int rs2 = insn & 0x1f; | |
3777 | int rd = (insn >> 25) & 0x1f; | |
3778 | ||
3779 | if (rs2 == rd) | |
3780 | relocation = SPARC_NOP; | |
3781 | else | |
3782 | relocation = 0x80100000 | (insn & 0x3e00001f); | |
3783 | bfd_put_32 (output_bfd, relocation, contents + rel->r_offset); | |
3784 | } | |
3785 | continue; | |
3786 | ||
3787 | case R_SPARC_TLS_IE_ADD: | |
3788 | /* Totally useless relocation. */ | |
3789 | continue; | |
3790 | ||
3791 | case R_SPARC_TLS_DTPOFF32: | |
3792 | case R_SPARC_TLS_DTPOFF64: | |
3793 | relocation -= dtpoff_base (info); | |
3794 | break; | |
3795 | ||
3796 | default: | |
3797 | break; | |
3798 | } | |
3799 | ||
3800 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections | |
3801 | because such sections are not SEC_ALLOC and thus ld.so will | |
3802 | not process them. */ | |
3803 | if (unresolved_reloc | |
3804 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
3805 | && h->def_dynamic)) | |
3806 | (*_bfd_error_handler) | |
843fe662 | 3807 | (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), |
22b75d0a DM |
3808 | input_bfd, |
3809 | input_section, | |
3810 | (long) rel->r_offset, | |
843fe662 | 3811 | howto->name, |
22b75d0a DM |
3812 | h->root.root.string); |
3813 | ||
3814 | r = bfd_reloc_continue; | |
3815 | if (r_type == R_SPARC_OLO10) | |
3816 | { | |
3817 | bfd_vma x; | |
3818 | ||
3819 | if (! ABI_64_P (output_bfd)) | |
3820 | abort (); | |
3821 | ||
3822 | relocation += rel->r_addend; | |
3823 | relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info); | |
3824 | ||
3825 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3826 | x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff); | |
3827 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
3828 | ||
3829 | r = bfd_check_overflow (howto->complain_on_overflow, | |
3830 | howto->bitsize, howto->rightshift, | |
3831 | bfd_arch_bits_per_address (input_bfd), | |
3832 | relocation); | |
3833 | } | |
3834 | else if (r_type == R_SPARC_WDISP16) | |
3835 | { | |
3836 | bfd_vma x; | |
3837 | ||
3838 | relocation += rel->r_addend; | |
3839 | relocation -= (input_section->output_section->vma | |
3840 | + input_section->output_offset); | |
3841 | relocation -= rel->r_offset; | |
3842 | ||
3843 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3844 | x |= ((((relocation >> 2) & 0xc000) << 6) | |
3845 | | ((relocation >> 2) & 0x3fff)); | |
3846 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
3847 | ||
3848 | r = bfd_check_overflow (howto->complain_on_overflow, | |
3849 | howto->bitsize, howto->rightshift, | |
3850 | bfd_arch_bits_per_address (input_bfd), | |
3851 | relocation); | |
3852 | } | |
3853 | else if (r_type == R_SPARC_REV32) | |
3854 | { | |
3855 | bfd_vma x; | |
3856 | ||
3857 | relocation = relocation + rel->r_addend; | |
3858 | ||
3859 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3860 | x = x + relocation; | |
3861 | bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset); | |
3862 | r = bfd_reloc_ok; | |
3863 | } | |
3864 | else if (r_type == R_SPARC_TLS_LDO_HIX22 | |
3865 | || r_type == R_SPARC_TLS_LE_HIX22) | |
3866 | { | |
3867 | bfd_vma x; | |
3868 | ||
3869 | relocation += rel->r_addend; | |
3870 | if (r_type == R_SPARC_TLS_LE_HIX22) | |
3871 | relocation ^= MINUS_ONE; | |
3872 | ||
3873 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3874 | x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); | |
3875 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
3876 | r = bfd_reloc_ok; | |
3877 | } | |
3878 | else if (r_type == R_SPARC_TLS_LDO_LOX10 | |
3879 | || r_type == R_SPARC_TLS_LE_LOX10) | |
3880 | { | |
3881 | bfd_vma x; | |
3882 | ||
3883 | relocation += rel->r_addend; | |
3884 | relocation &= 0x3ff; | |
3885 | if (r_type == R_SPARC_TLS_LE_LOX10) | |
3886 | relocation |= 0x1c00; | |
3887 | ||
3888 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3889 | x = (x & ~(bfd_vma) 0x1fff) | relocation; | |
3890 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
3891 | ||
3892 | r = bfd_reloc_ok; | |
3893 | } | |
00c50991 DM |
3894 | else if (r_type == R_SPARC_HIX22 |
3895 | || r_type == R_SPARC_GOTDATA_HIX22) | |
22b75d0a DM |
3896 | { |
3897 | bfd_vma x; | |
3898 | ||
3899 | relocation += rel->r_addend; | |
00c50991 DM |
3900 | if (r_type == R_SPARC_HIX22 |
3901 | || (bfd_signed_vma) relocation < 0) | |
3902 | relocation = relocation ^ MINUS_ONE; | |
22b75d0a DM |
3903 | |
3904 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3905 | x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff); | |
3906 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
3907 | ||
3908 | r = bfd_check_overflow (howto->complain_on_overflow, | |
3909 | howto->bitsize, howto->rightshift, | |
3910 | bfd_arch_bits_per_address (input_bfd), | |
3911 | relocation); | |
3912 | } | |
00c50991 DM |
3913 | else if (r_type == R_SPARC_LOX10 |
3914 | || r_type == R_SPARC_GOTDATA_LOX10) | |
22b75d0a DM |
3915 | { |
3916 | bfd_vma x; | |
3917 | ||
3918 | relocation += rel->r_addend; | |
00c50991 DM |
3919 | if (r_type == R_SPARC_LOX10 |
3920 | || (bfd_signed_vma) relocation < 0) | |
3921 | relocation = (relocation & 0x3ff) | 0x1c00; | |
3922 | else | |
3923 | relocation = (relocation & 0x3ff); | |
22b75d0a DM |
3924 | |
3925 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3926 | x = (x & ~(bfd_vma) 0x1fff) | relocation; | |
3927 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
3928 | ||
3929 | r = bfd_reloc_ok; | |
3930 | } | |
3931 | else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30) | |
3932 | && sec_do_relax (input_section) | |
3933 | && rel->r_offset + 4 < input_section->size) | |
3934 | { | |
3935 | #define G0 0 | |
3936 | #define O7 15 | |
3937 | #define XCC (2 << 20) | |
3938 | #define COND(x) (((x)&0xf)<<25) | |
3939 | #define CONDA COND(0x8) | |
3940 | #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC) | |
3941 | #define INSN_BA (F2(0,2) | CONDA) | |
3942 | #define INSN_OR F3(2, 0x2, 0) | |
3943 | #define INSN_NOP F2(0,4) | |
3944 | ||
3945 | bfd_vma x, y; | |
3946 | ||
3947 | /* If the instruction is a call with either: | |
3948 | restore | |
3949 | arithmetic instruction with rd == %o7 | |
3950 | where rs1 != %o7 and rs2 if it is register != %o7 | |
3951 | then we can optimize if the call destination is near | |
3952 | by changing the call into a branch always. */ | |
3953 | x = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
3954 | y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
3955 | if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2)) | |
3956 | { | |
3957 | if (((y & OP3(~0)) == OP3(0x3d) /* restore */ | |
3958 | || ((y & OP3(0x28)) == 0 /* arithmetic */ | |
3959 | && (y & RD(~0)) == RD(O7))) | |
3960 | && (y & RS1(~0)) != RS1(O7) | |
3961 | && ((y & F3I(~0)) | |
3962 | || (y & RS2(~0)) != RS2(O7))) | |
3963 | { | |
3964 | bfd_vma reloc; | |
3965 | ||
3966 | reloc = relocation + rel->r_addend - rel->r_offset; | |
3967 | reloc -= (input_section->output_section->vma | |
3968 | + input_section->output_offset); | |
3969 | ||
3970 | /* Ensure the branch fits into simm22. */ | |
3971 | if ((reloc & 3) == 0 | |
3972 | && ((reloc & ~(bfd_vma)0x7fffff) == 0 | |
3973 | || ((reloc | 0x7fffff) == ~(bfd_vma)0))) | |
3974 | { | |
3975 | reloc >>= 2; | |
3976 | ||
3977 | /* Check whether it fits into simm19. */ | |
3978 | if (((reloc & 0x3c0000) == 0 | |
3979 | || (reloc & 0x3c0000) == 0x3c0000) | |
3980 | && (ABI_64_P (output_bfd) | |
3981 | || elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS)) | |
3982 | x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */ | |
3983 | else | |
3984 | x = INSN_BA | (reloc & 0x3fffff); /* ba */ | |
3985 | bfd_put_32 (input_bfd, x, contents + rel->r_offset); | |
3986 | r = bfd_reloc_ok; | |
3987 | if (rel->r_offset >= 4 | |
3988 | && (y & (0xffffffff ^ RS1(~0))) | |
3989 | == (INSN_OR | RD(O7) | RS2(G0))) | |
3990 | { | |
3991 | bfd_vma z; | |
3992 | unsigned int reg; | |
3993 | ||
3994 | z = bfd_get_32 (input_bfd, | |
3995 | contents + rel->r_offset - 4); | |
3996 | if ((z & (0xffffffff ^ RD(~0))) | |
3997 | != (INSN_OR | RS1(O7) | RS2(G0))) | |
3998 | break; | |
3999 | ||
4000 | /* The sequence was | |
4001 | or %o7, %g0, %rN | |
4002 | call foo | |
4003 | or %rN, %g0, %o7 | |
4004 | ||
4005 | If call foo was replaced with ba, replace | |
4006 | or %rN, %g0, %o7 with nop. */ | |
4007 | ||
4008 | reg = (y & RS1(~0)) >> 14; | |
4009 | if (reg != ((z & RD(~0)) >> 25) | |
4010 | || reg == G0 || reg == O7) | |
4011 | break; | |
4012 | ||
4013 | bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP, | |
4014 | contents + rel->r_offset + 4); | |
4015 | } | |
4016 | ||
4017 | } | |
4018 | } | |
4019 | } | |
4020 | } | |
4021 | ||
4022 | if (r == bfd_reloc_continue) | |
d0c9aeb3 DM |
4023 | { |
4024 | do_relocation: | |
4025 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
4026 | contents, rel->r_offset, | |
4027 | relocation, rel->r_addend); | |
4028 | } | |
22b75d0a DM |
4029 | if (r != bfd_reloc_ok) |
4030 | { | |
4031 | switch (r) | |
4032 | { | |
4033 | default: | |
4034 | case bfd_reloc_outofrange: | |
4035 | abort (); | |
4036 | case bfd_reloc_overflow: | |
4037 | { | |
4038 | const char *name; | |
4039 | ||
dc669dc8 EB |
4040 | /* The Solaris native linker silently disregards overflows. |
4041 | We don't, but this breaks stabs debugging info, whose | |
4042 | relocations are only 32-bits wide. Ignore overflows in | |
4043 | this case and also for discarded entries. */ | |
4044 | if ((r_type == R_SPARC_32 || r_type == R_SPARC_DISP32) | |
4045 | && (((input_section->flags & SEC_DEBUGGING) != 0 | |
4046 | && strcmp (bfd_section_name (input_bfd, | |
4047 | input_section), | |
4048 | ".stab") == 0) | |
4049 | || _bfd_elf_section_offset (output_bfd, info, | |
4050 | input_section, | |
4051 | rel->r_offset) | |
4052 | == (bfd_vma)-1)) | |
4053 | break; | |
4054 | ||
22b75d0a | 4055 | if (h != NULL) |
bb29dfea EB |
4056 | { |
4057 | /* Assume this is a call protected by other code that | |
4058 | detect the symbol is undefined. If this is the case, | |
4059 | we can safely ignore the overflow. If not, the | |
4060 | program is hosed anyway, and a little warning isn't | |
4061 | going to help. */ | |
4062 | if (h->root.type == bfd_link_hash_undefweak | |
4063 | && howto->pc_relative) | |
4064 | break; | |
4065 | ||
4066 | name = NULL; | |
4067 | } | |
22b75d0a DM |
4068 | else |
4069 | { | |
4070 | name = bfd_elf_string_from_elf_section (input_bfd, | |
4071 | symtab_hdr->sh_link, | |
4072 | sym->st_name); | |
4073 | if (name == NULL) | |
4074 | return FALSE; | |
4075 | if (*name == '\0') | |
4076 | name = bfd_section_name (input_bfd, sec); | |
4077 | } | |
4078 | if (! ((*info->callbacks->reloc_overflow) | |
4079 | (info, (h ? &h->root : NULL), name, howto->name, | |
4080 | (bfd_vma) 0, input_bfd, input_section, | |
4081 | rel->r_offset))) | |
4082 | return FALSE; | |
4083 | } | |
4084 | break; | |
4085 | } | |
4086 | } | |
4087 | } | |
4088 | ||
4089 | return TRUE; | |
4090 | } | |
4091 | ||
910600e9 RS |
4092 | /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry |
4093 | and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET | |
4094 | is the offset of the associated .got.plt entry from | |
4095 | _GLOBAL_OFFSET_TABLE_. */ | |
4096 | ||
4097 | static void | |
4098 | sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info, | |
4099 | bfd_vma plt_offset, bfd_vma plt_index, | |
4100 | bfd_vma got_offset) | |
4101 | { | |
4102 | bfd_vma got_base; | |
4103 | const bfd_vma *plt_entry; | |
4104 | struct _bfd_sparc_elf_link_hash_table *htab; | |
4105 | bfd_byte *loc; | |
4106 | Elf_Internal_Rela rela; | |
4107 | ||
4108 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 NC |
4109 | BFD_ASSERT (htab != NULL); |
4110 | ||
910600e9 RS |
4111 | if (info->shared) |
4112 | { | |
4113 | plt_entry = sparc_vxworks_shared_plt_entry; | |
4114 | got_base = 0; | |
4115 | } | |
4116 | else | |
4117 | { | |
4118 | plt_entry = sparc_vxworks_exec_plt_entry; | |
4119 | got_base = (htab->elf.hgot->root.u.def.value | |
4120 | + htab->elf.hgot->root.u.def.section->output_offset | |
4121 | + htab->elf.hgot->root.u.def.section->output_section->vma); | |
4122 | } | |
4123 | ||
4124 | /* Fill in the entry in the procedure linkage table. */ | |
4125 | bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10), | |
72fbc6e5 | 4126 | htab->elf.splt->contents + plt_offset); |
910600e9 | 4127 | bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff), |
72fbc6e5 | 4128 | htab->elf.splt->contents + plt_offset + 4); |
910600e9 | 4129 | bfd_put_32 (output_bfd, plt_entry[2], |
72fbc6e5 | 4130 | htab->elf.splt->contents + plt_offset + 8); |
910600e9 | 4131 | bfd_put_32 (output_bfd, plt_entry[3], |
72fbc6e5 | 4132 | htab->elf.splt->contents + plt_offset + 12); |
910600e9 | 4133 | bfd_put_32 (output_bfd, plt_entry[4], |
72fbc6e5 | 4134 | htab->elf.splt->contents + plt_offset + 16); |
910600e9 | 4135 | bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10), |
72fbc6e5 | 4136 | htab->elf.splt->contents + plt_offset + 20); |
910600e9 RS |
4137 | /* PC-relative displacement for a branch to the start of |
4138 | the PLT section. */ | |
4139 | bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2) | |
4140 | & 0x003fffff), | |
72fbc6e5 | 4141 | htab->elf.splt->contents + plt_offset + 24); |
910600e9 | 4142 | bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff), |
72fbc6e5 | 4143 | htab->elf.splt->contents + plt_offset + 28); |
910600e9 RS |
4144 | |
4145 | /* Fill in the .got.plt entry, pointing initially at the | |
4146 | second half of the PLT entry. */ | |
72fbc6e5 | 4147 | BFD_ASSERT (htab->elf.sgotplt != NULL); |
910600e9 | 4148 | bfd_put_32 (output_bfd, |
72fbc6e5 DM |
4149 | htab->elf.splt->output_section->vma |
4150 | + htab->elf.splt->output_offset | |
910600e9 | 4151 | + plt_offset + 20, |
72fbc6e5 | 4152 | htab->elf.sgotplt->contents + got_offset); |
910600e9 RS |
4153 | |
4154 | /* Add relocations to .rela.plt.unloaded. */ | |
4155 | if (!info->shared) | |
4156 | { | |
4157 | loc = (htab->srelplt2->contents | |
4158 | + (2 + 3 * plt_index) * sizeof (Elf32_External_Rela)); | |
4159 | ||
4160 | /* Relocate the initial sethi. */ | |
72fbc6e5 DM |
4161 | rela.r_offset = (htab->elf.splt->output_section->vma |
4162 | + htab->elf.splt->output_offset | |
910600e9 RS |
4163 | + plt_offset); |
4164 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22); | |
4165 | rela.r_addend = got_offset; | |
4166 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
4167 | loc += sizeof (Elf32_External_Rela); | |
4168 | ||
4169 | /* Likewise the following or. */ | |
4170 | rela.r_offset += 4; | |
4171 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10); | |
4172 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
4173 | loc += sizeof (Elf32_External_Rela); | |
4174 | ||
4175 | /* Relocate the .got.plt entry. */ | |
72fbc6e5 DM |
4176 | rela.r_offset = (htab->elf.sgotplt->output_section->vma |
4177 | + htab->elf.sgotplt->output_offset | |
910600e9 RS |
4178 | + got_offset); |
4179 | rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32); | |
4180 | rela.r_addend = plt_offset + 20; | |
4181 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
4182 | } | |
4183 | } | |
4184 | ||
22b75d0a DM |
4185 | /* Finish up dynamic symbol handling. We set the contents of various |
4186 | dynamic sections here. */ | |
4187 | ||
4188 | bfd_boolean | |
4189 | _bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd, | |
4190 | struct bfd_link_info *info, | |
4191 | struct elf_link_hash_entry *h, | |
4192 | Elf_Internal_Sym *sym) | |
4193 | { | |
22b75d0a | 4194 | struct _bfd_sparc_elf_link_hash_table *htab; |
39817122 | 4195 | const struct elf_backend_data *bed; |
22b75d0a DM |
4196 | |
4197 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 4198 | BFD_ASSERT (htab != NULL); |
39817122 | 4199 | bed = get_elf_backend_data (output_bfd); |
22b75d0a DM |
4200 | |
4201 | if (h->plt.offset != (bfd_vma) -1) | |
4202 | { | |
4203 | asection *splt; | |
4204 | asection *srela; | |
4205 | Elf_Internal_Rela rela; | |
4206 | bfd_byte *loc; | |
910600e9 | 4207 | bfd_vma r_offset, got_offset; |
22b75d0a DM |
4208 | int rela_index; |
4209 | ||
d0c9aeb3 DM |
4210 | /* When building a static executable, use .iplt and |
4211 | .rela.iplt sections for STT_GNU_IFUNC symbols. */ | |
4212 | if (htab->elf.splt != NULL) | |
4213 | { | |
4214 | splt = htab->elf.splt; | |
4215 | srela = htab->elf.srelplt; | |
4216 | } | |
4217 | else | |
4218 | { | |
4219 | splt = htab->elf.iplt; | |
4220 | srela = htab->elf.irelplt; | |
4221 | } | |
22b75d0a | 4222 | |
d0c9aeb3 DM |
4223 | if (splt == NULL || srela == NULL) |
4224 | abort (); | |
22b75d0a | 4225 | |
22b75d0a | 4226 | /* Fill in the entry in the .rela.plt section. */ |
910600e9 | 4227 | if (htab->is_vxworks) |
22b75d0a | 4228 | { |
910600e9 RS |
4229 | /* Work out the index of this PLT entry. */ |
4230 | rela_index = ((h->plt.offset - htab->plt_header_size) | |
4231 | / htab->plt_entry_size); | |
4232 | ||
4233 | /* Calculate the offset of the associated .got.plt entry. | |
4234 | The first three entries are reserved. */ | |
4235 | got_offset = (rela_index + 3) * 4; | |
4236 | ||
4237 | sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset, | |
4238 | rela_index, got_offset); | |
4239 | ||
4240 | ||
4241 | /* On VxWorks, the relocation points to the .got.plt entry, | |
4242 | not the .plt entry. */ | |
72fbc6e5 DM |
4243 | rela.r_offset = (htab->elf.sgotplt->output_section->vma |
4244 | + htab->elf.sgotplt->output_offset | |
910600e9 | 4245 | + got_offset); |
22b75d0a | 4246 | rela.r_addend = 0; |
d0c9aeb3 DM |
4247 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, |
4248 | R_SPARC_JMP_SLOT); | |
22b75d0a DM |
4249 | } |
4250 | else | |
4251 | { | |
d0c9aeb3 DM |
4252 | bfd_boolean ifunc = FALSE; |
4253 | ||
910600e9 RS |
4254 | /* Fill in the entry in the procedure linkage table. */ |
4255 | rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt, | |
4256 | h->plt.offset, splt->size, | |
4257 | &r_offset); | |
4258 | ||
d0c9aeb3 DM |
4259 | if (h == NULL |
4260 | || h->dynindx == -1 | |
4261 | || ((info->executable | |
4262 | || ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
4263 | && h->def_regular | |
4264 | && h->type == STT_GNU_IFUNC)) | |
4265 | { | |
4266 | ifunc = TRUE; | |
4267 | BFD_ASSERT (h == NULL | |
4268 | || (h->type == STT_GNU_IFUNC | |
4269 | && h->def_regular | |
4270 | && (h->root.type == bfd_link_hash_defined | |
4271 | || h->root.type == bfd_link_hash_defweak))); | |
4272 | } | |
4273 | ||
910600e9 RS |
4274 | rela.r_offset = r_offset |
4275 | + (splt->output_section->vma + splt->output_offset); | |
d0c9aeb3 DM |
4276 | if (ABI_64_P (output_bfd) |
4277 | && h->plt.offset >= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)) | |
910600e9 | 4278 | { |
d0c9aeb3 DM |
4279 | if (ifunc) |
4280 | { | |
4281 | rela.r_addend = (h->root.u.def.section->output_section->vma | |
4282 | + h->root.u.def.section->output_offset | |
4283 | + h->root.u.def.value); | |
4284 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, | |
4285 | R_SPARC_IRELATIVE); | |
4286 | } | |
4287 | else | |
4288 | { | |
4289 | rela.r_addend = (-(h->plt.offset + 4) | |
4290 | - splt->output_section->vma | |
4291 | - splt->output_offset); | |
4292 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, | |
4293 | R_SPARC_JMP_SLOT); | |
4294 | } | |
910600e9 RS |
4295 | } |
4296 | else | |
4297 | { | |
d0c9aeb3 DM |
4298 | if (ifunc) |
4299 | { | |
4300 | rela.r_addend = (h->root.u.def.section->output_section->vma | |
4301 | + h->root.u.def.section->output_offset | |
4302 | + h->root.u.def.value); | |
4303 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, | |
4304 | R_SPARC_JMP_IREL); | |
4305 | } | |
4306 | else | |
4307 | { | |
4308 | rela.r_addend = 0; | |
4309 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, | |
4310 | R_SPARC_JMP_SLOT); | |
4311 | } | |
910600e9 | 4312 | } |
22b75d0a | 4313 | } |
22b75d0a DM |
4314 | |
4315 | /* Adjust for the first 4 reserved elements in the .plt section | |
4316 | when setting the offset in the .rela.plt section. | |
4317 | Sun forgot to read their own ABI and copied elf32-sparc behaviour, | |
4318 | thus .plt[4] has corresponding .rela.plt[0] and so on. */ | |
4319 | ||
4320 | loc = srela->contents; | |
39817122 RS |
4321 | loc += rela_index * bed->s->sizeof_rela; |
4322 | bed->s->swap_reloca_out (output_bfd, &rela, loc); | |
22b75d0a DM |
4323 | |
4324 | if (!h->def_regular) | |
4325 | { | |
4326 | /* Mark the symbol as undefined, rather than as defined in | |
4327 | the .plt section. Leave the value alone. */ | |
4328 | sym->st_shndx = SHN_UNDEF; | |
4329 | /* If the symbol is weak, we do need to clear the value. | |
4330 | Otherwise, the PLT entry would provide a definition for | |
4331 | the symbol even if the symbol wasn't defined anywhere, | |
4332 | and so the symbol would never be NULL. */ | |
4333 | if (!h->ref_regular_nonweak) | |
4334 | sym->st_value = 0; | |
4335 | } | |
4336 | } | |
4337 | ||
4338 | if (h->got.offset != (bfd_vma) -1 | |
4339 | && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD | |
4340 | && _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE) | |
4341 | { | |
4342 | asection *sgot; | |
4343 | asection *srela; | |
4344 | Elf_Internal_Rela rela; | |
4345 | ||
4346 | /* This symbol has an entry in the GOT. Set it up. */ | |
4347 | ||
72fbc6e5 DM |
4348 | sgot = htab->elf.sgot; |
4349 | srela = htab->elf.srelgot; | |
22b75d0a DM |
4350 | BFD_ASSERT (sgot != NULL && srela != NULL); |
4351 | ||
4352 | rela.r_offset = (sgot->output_section->vma | |
4353 | + sgot->output_offset | |
4354 | + (h->got.offset &~ (bfd_vma) 1)); | |
4355 | ||
4356 | /* If this is a -Bsymbolic link, and the symbol is defined | |
4357 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
4358 | the symbol was forced to be local because of a version file. | |
4359 | The entry in the global offset table will already have been | |
4360 | initialized in the relocate_section function. */ | |
d0c9aeb3 DM |
4361 | if (! info->shared |
4362 | && h->type == STT_GNU_IFUNC | |
4363 | && h->def_regular) | |
4364 | { | |
4365 | asection *plt; | |
4366 | ||
4367 | /* We load the GOT entry with the PLT entry. */ | |
4368 | plt = htab->elf.splt ? htab->elf.splt : htab->elf.iplt; | |
4369 | SPARC_ELF_PUT_WORD (htab, output_bfd, | |
4370 | (plt->output_section->vma | |
4371 | + plt->output_offset + h->plt.offset), | |
4372 | htab->elf.sgot->contents | |
4373 | + (h->got.offset & ~(bfd_vma) 1)); | |
4374 | return TRUE; | |
4375 | } | |
4376 | else if (info->shared | |
4377 | && SYMBOL_REFERENCES_LOCAL (info, h)) | |
22b75d0a DM |
4378 | { |
4379 | asection *sec = h->root.u.def.section; | |
d0c9aeb3 DM |
4380 | if (h->type == STT_GNU_IFUNC) |
4381 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_IRELATIVE); | |
4382 | else | |
4383 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE); | |
22b75d0a DM |
4384 | rela.r_addend = (h->root.u.def.value |
4385 | + sec->output_section->vma | |
4386 | + sec->output_offset); | |
4387 | } | |
4388 | else | |
4389 | { | |
4390 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT); | |
4391 | rela.r_addend = 0; | |
4392 | } | |
4393 | ||
4394 | SPARC_ELF_PUT_WORD (htab, output_bfd, 0, | |
4395 | sgot->contents + (h->got.offset & ~(bfd_vma) 1)); | |
39817122 | 4396 | sparc_elf_append_rela (output_bfd, srela, &rela); |
22b75d0a DM |
4397 | } |
4398 | ||
4399 | if (h->needs_copy) | |
4400 | { | |
4401 | asection *s; | |
4402 | Elf_Internal_Rela rela; | |
4403 | ||
4404 | /* This symbols needs a copy reloc. Set it up. */ | |
4405 | BFD_ASSERT (h->dynindx != -1); | |
4406 | ||
4407 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
4408 | ".rela.bss"); | |
4409 | BFD_ASSERT (s != NULL); | |
4410 | ||
4411 | rela.r_offset = (h->root.u.def.value | |
4412 | + h->root.u.def.section->output_section->vma | |
4413 | + h->root.u.def.section->output_offset); | |
4414 | rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY); | |
4415 | rela.r_addend = 0; | |
39817122 | 4416 | sparc_elf_append_rela (output_bfd, s, &rela); |
22b75d0a DM |
4417 | } |
4418 | ||
910600e9 RS |
4419 | /* Mark some specially defined symbols as absolute. On VxWorks, |
4420 | _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the | |
4421 | ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */ | |
d0c9aeb3 DM |
4422 | if (sym != NULL |
4423 | && (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
4424 | || (!htab->is_vxworks | |
4425 | && (h == htab->elf.hgot || h == htab->elf.hplt)))) | |
22b75d0a DM |
4426 | sym->st_shndx = SHN_ABS; |
4427 | ||
4428 | return TRUE; | |
4429 | } | |
4430 | ||
4431 | /* Finish up the dynamic sections. */ | |
4432 | ||
22b75d0a | 4433 | static bfd_boolean |
39817122 RS |
4434 | sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info, |
4435 | bfd *dynobj, asection *sdyn, | |
4436 | asection *splt ATTRIBUTE_UNUSED) | |
22b75d0a | 4437 | { |
910600e9 | 4438 | struct _bfd_sparc_elf_link_hash_table *htab; |
39817122 RS |
4439 | const struct elf_backend_data *bed; |
4440 | bfd_byte *dyncon, *dynconend; | |
4441 | size_t dynsize; | |
4442 | int stt_regidx = -1; | |
4443 | bfd_boolean abi_64_p; | |
22b75d0a | 4444 | |
910600e9 | 4445 | htab = _bfd_sparc_elf_hash_table (info); |
4dfe6ac6 | 4446 | BFD_ASSERT (htab != NULL); |
39817122 RS |
4447 | bed = get_elf_backend_data (output_bfd); |
4448 | dynsize = bed->s->sizeof_dyn; | |
4449 | dynconend = sdyn->contents + sdyn->size; | |
4450 | abi_64_p = ABI_64_P (output_bfd); | |
4451 | for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize) | |
22b75d0a DM |
4452 | { |
4453 | Elf_Internal_Dyn dyn; | |
4454 | const char *name; | |
4455 | bfd_boolean size; | |
4456 | ||
39817122 | 4457 | bed->s->swap_dyn_in (dynobj, dyncon, &dyn); |
22b75d0a | 4458 | |
910600e9 | 4459 | if (htab->is_vxworks && dyn.d_tag == DT_RELASZ) |
22b75d0a | 4460 | { |
910600e9 RS |
4461 | /* On VxWorks, DT_RELASZ should not include the relocations |
4462 | in .rela.plt. */ | |
72fbc6e5 | 4463 | if (htab->elf.srelplt) |
910600e9 | 4464 | { |
72fbc6e5 | 4465 | dyn.d_un.d_val -= htab->elf.srelplt->size; |
39817122 | 4466 | bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); |
910600e9 | 4467 | } |
22b75d0a | 4468 | } |
910600e9 | 4469 | else if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT) |
22b75d0a | 4470 | { |
910600e9 RS |
4471 | /* On VxWorks, DT_PLTGOT should point to the start of the GOT, |
4472 | not to the start of the PLT. */ | |
72fbc6e5 | 4473 | if (htab->elf.sgotplt) |
910600e9 | 4474 | { |
72fbc6e5 DM |
4475 | dyn.d_un.d_val = (htab->elf.sgotplt->output_section->vma |
4476 | + htab->elf.sgotplt->output_offset); | |
39817122 | 4477 | bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); |
910600e9 RS |
4478 | } |
4479 | } | |
7a2b07ff NS |
4480 | else if (htab->is_vxworks |
4481 | && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn)) | |
4482 | bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); | |
39817122 RS |
4483 | else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER) |
4484 | { | |
4485 | if (stt_regidx == -1) | |
4486 | { | |
4487 | stt_regidx = | |
4488 | _bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1); | |
4489 | if (stt_regidx == -1) | |
4490 | return FALSE; | |
4491 | } | |
4492 | dyn.d_un.d_val = stt_regidx++; | |
4493 | bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); | |
4494 | } | |
910600e9 RS |
4495 | else |
4496 | { | |
4497 | switch (dyn.d_tag) | |
4498 | { | |
4499 | case DT_PLTGOT: name = ".plt"; size = FALSE; break; | |
4500 | case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break; | |
4501 | case DT_JMPREL: name = ".rela.plt"; size = FALSE; break; | |
39817122 | 4502 | default: name = NULL; size = FALSE; break; |
910600e9 | 4503 | } |
22b75d0a | 4504 | |
910600e9 | 4505 | if (name != NULL) |
22b75d0a | 4506 | { |
910600e9 RS |
4507 | asection *s; |
4508 | ||
4509 | s = bfd_get_section_by_name (output_bfd, name); | |
4510 | if (s == NULL) | |
4511 | dyn.d_un.d_val = 0; | |
22b75d0a | 4512 | else |
910600e9 RS |
4513 | { |
4514 | if (! size) | |
4515 | dyn.d_un.d_ptr = s->vma; | |
4516 | else | |
4517 | dyn.d_un.d_val = s->size; | |
4518 | } | |
39817122 | 4519 | bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); |
22b75d0a | 4520 | } |
22b75d0a DM |
4521 | } |
4522 | } | |
4523 | return TRUE; | |
4524 | } | |
4525 | ||
910600e9 RS |
4526 | /* Install the first PLT entry in a VxWorks executable and make sure that |
4527 | .rela.plt.unloaded relocations have the correct symbol indexes. */ | |
4528 | ||
4529 | static void | |
4530 | sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info) | |
4531 | { | |
4532 | struct _bfd_sparc_elf_link_hash_table *htab; | |
4533 | Elf_Internal_Rela rela; | |
4534 | bfd_vma got_base; | |
4535 | bfd_byte *loc; | |
4536 | ||
4537 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 4538 | BFD_ASSERT (htab != NULL); |
910600e9 RS |
4539 | |
4540 | /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */ | |
4541 | got_base = (htab->elf.hgot->root.u.def.section->output_section->vma | |
4542 | + htab->elf.hgot->root.u.def.section->output_offset | |
4543 | + htab->elf.hgot->root.u.def.value); | |
4544 | ||
4545 | /* Install the initial PLT entry. */ | |
4546 | bfd_put_32 (output_bfd, | |
4547 | sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10), | |
72fbc6e5 | 4548 | htab->elf.splt->contents); |
910600e9 RS |
4549 | bfd_put_32 (output_bfd, |
4550 | sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff), | |
72fbc6e5 | 4551 | htab->elf.splt->contents + 4); |
910600e9 RS |
4552 | bfd_put_32 (output_bfd, |
4553 | sparc_vxworks_exec_plt0_entry[2], | |
72fbc6e5 | 4554 | htab->elf.splt->contents + 8); |
910600e9 RS |
4555 | bfd_put_32 (output_bfd, |
4556 | sparc_vxworks_exec_plt0_entry[3], | |
72fbc6e5 | 4557 | htab->elf.splt->contents + 12); |
910600e9 RS |
4558 | bfd_put_32 (output_bfd, |
4559 | sparc_vxworks_exec_plt0_entry[4], | |
72fbc6e5 | 4560 | htab->elf.splt->contents + 16); |
910600e9 RS |
4561 | |
4562 | loc = htab->srelplt2->contents; | |
4563 | ||
4564 | /* Add an unloaded relocation for the initial entry's "sethi". */ | |
72fbc6e5 DM |
4565 | rela.r_offset = (htab->elf.splt->output_section->vma |
4566 | + htab->elf.splt->output_offset); | |
910600e9 RS |
4567 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22); |
4568 | rela.r_addend = 8; | |
4569 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
4570 | loc += sizeof (Elf32_External_Rela); | |
4571 | ||
4572 | /* Likewise the following "or". */ | |
4573 | rela.r_offset += 4; | |
4574 | rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10); | |
4575 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
4576 | loc += sizeof (Elf32_External_Rela); | |
4577 | ||
4578 | /* Fix up the remaining .rela.plt.unloaded relocations. They may have | |
4579 | the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order | |
4580 | in which symbols were output. */ | |
4581 | while (loc < htab->srelplt2->contents + htab->srelplt2->size) | |
4582 | { | |
4583 | Elf_Internal_Rela rel; | |
4584 | ||
4585 | /* The entry's initial "sethi" (against _G_O_T_). */ | |
4586 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
4587 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22); | |
4588 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
4589 | loc += sizeof (Elf32_External_Rela); | |
4590 | ||
4591 | /* The following "or" (also against _G_O_T_). */ | |
4592 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
4593 | rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10); | |
4594 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
4595 | loc += sizeof (Elf32_External_Rela); | |
4596 | ||
4597 | /* The .got.plt entry (against _P_L_T_). */ | |
4598 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
4599 | rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32); | |
4600 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
4601 | loc += sizeof (Elf32_External_Rela); | |
4602 | } | |
4603 | } | |
4604 | ||
4605 | /* Install the first PLT entry in a VxWorks shared object. */ | |
4606 | ||
4607 | static void | |
4608 | sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info) | |
4609 | { | |
4610 | struct _bfd_sparc_elf_link_hash_table *htab; | |
4611 | unsigned int i; | |
4612 | ||
4613 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 NC |
4614 | BFD_ASSERT (htab != NULL); |
4615 | ||
910600e9 RS |
4616 | for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++) |
4617 | bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i], | |
72fbc6e5 | 4618 | htab->elf.splt->contents + i * 4); |
910600e9 RS |
4619 | } |
4620 | ||
d0c9aeb3 DM |
4621 | /* Finish up local dynamic symbol handling. We set the contents of |
4622 | various dynamic sections here. */ | |
4623 | ||
4624 | static bfd_boolean | |
4625 | finish_local_dynamic_symbol (void **slot, void *inf) | |
4626 | { | |
4627 | struct elf_link_hash_entry *h | |
4628 | = (struct elf_link_hash_entry *) *slot; | |
4629 | struct bfd_link_info *info | |
4630 | = (struct bfd_link_info *) inf; | |
4631 | ||
4632 | return _bfd_sparc_elf_finish_dynamic_symbol (info->output_bfd, info, | |
4633 | h, NULL); | |
4634 | } | |
4635 | ||
22b75d0a DM |
4636 | bfd_boolean |
4637 | _bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) | |
4638 | { | |
4639 | bfd *dynobj; | |
4640 | asection *sdyn; | |
4641 | struct _bfd_sparc_elf_link_hash_table *htab; | |
4642 | ||
4643 | htab = _bfd_sparc_elf_hash_table (info); | |
4dfe6ac6 | 4644 | BFD_ASSERT (htab != NULL); |
22b75d0a DM |
4645 | dynobj = htab->elf.dynobj; |
4646 | ||
4647 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4648 | ||
4649 | if (elf_hash_table (info)->dynamic_sections_created) | |
4650 | { | |
4651 | asection *splt; | |
22b75d0a DM |
4652 | |
4653 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
4654 | BFD_ASSERT (splt != NULL && sdyn != NULL); | |
4655 | ||
39817122 RS |
4656 | if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt)) |
4657 | return FALSE; | |
22b75d0a DM |
4658 | |
4659 | /* Initialize the contents of the .plt section. */ | |
4660 | if (splt->size > 0) | |
4661 | { | |
910600e9 RS |
4662 | if (htab->is_vxworks) |
4663 | { | |
4664 | if (info->shared) | |
4665 | sparc_vxworks_finish_shared_plt (output_bfd, info); | |
4666 | else | |
4667 | sparc_vxworks_finish_exec_plt (output_bfd, info); | |
4668 | } | |
22b75d0a DM |
4669 | else |
4670 | { | |
910600e9 RS |
4671 | memset (splt->contents, 0, htab->plt_header_size); |
4672 | if (!ABI_64_P (output_bfd)) | |
4673 | bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, | |
4674 | splt->contents + splt->size - 4); | |
22b75d0a DM |
4675 | } |
4676 | } | |
4677 | ||
910600e9 | 4678 | elf_section_data (splt->output_section)->this_hdr.sh_entsize |
7eeb1be6 JJ |
4679 | = (htab->is_vxworks || !ABI_64_P (output_bfd)) |
4680 | ? 0 : htab->plt_entry_size; | |
22b75d0a DM |
4681 | } |
4682 | ||
4683 | /* Set the first entry in the global offset table to the address of | |
4684 | the dynamic section. */ | |
72fbc6e5 | 4685 | if (htab->elf.sgot && htab->elf.sgot->size > 0) |
22b75d0a DM |
4686 | { |
4687 | bfd_vma val = (sdyn ? | |
4688 | sdyn->output_section->vma + sdyn->output_offset : | |
4689 | 0); | |
4690 | ||
72fbc6e5 | 4691 | SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->elf.sgot->contents); |
22b75d0a DM |
4692 | } |
4693 | ||
72fbc6e5 DM |
4694 | if (htab->elf.sgot) |
4695 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = | |
22b75d0a DM |
4696 | SPARC_ELF_WORD_BYTES (htab); |
4697 | ||
d0c9aeb3 DM |
4698 | /* Fill PLT and GOT entries for local STT_GNU_IFUNC symbols. */ |
4699 | htab_traverse (htab->loc_hash_table, finish_local_dynamic_symbol, info); | |
4700 | ||
22b75d0a DM |
4701 | return TRUE; |
4702 | } | |
4703 | ||
4704 | \f | |
4705 | /* Set the right machine number for a SPARC ELF file. */ | |
4706 | ||
4707 | bfd_boolean | |
4708 | _bfd_sparc_elf_object_p (bfd *abfd) | |
4709 | { | |
4710 | if (ABI_64_P (abfd)) | |
4711 | { | |
4712 | unsigned long mach = bfd_mach_sparc_v9; | |
4713 | ||
4714 | if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3) | |
4715 | mach = bfd_mach_sparc_v9b; | |
4716 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) | |
4717 | mach = bfd_mach_sparc_v9a; | |
4718 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach); | |
4719 | } | |
4720 | else | |
4721 | { | |
4722 | if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS) | |
4723 | { | |
4724 | if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3) | |
4725 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
4726 | bfd_mach_sparc_v8plusb); | |
4727 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1) | |
4728 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
4729 | bfd_mach_sparc_v8plusa); | |
4730 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS) | |
4731 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
4732 | bfd_mach_sparc_v8plus); | |
4733 | else | |
4734 | return FALSE; | |
4735 | } | |
4736 | else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA) | |
4737 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, | |
4738 | bfd_mach_sparc_sparclite_le); | |
4739 | else | |
4740 | return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc); | |
4741 | } | |
4742 | } | |
4743 | ||
4744 | /* Return address for Ith PLT stub in section PLT, for relocation REL | |
4745 | or (bfd_vma) -1 if it should not be included. */ | |
4746 | ||
4747 | bfd_vma | |
4748 | _bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel) | |
4749 | { | |
4750 | if (ABI_64_P (plt->owner)) | |
4751 | { | |
4752 | bfd_vma j; | |
4753 | ||
4754 | i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE; | |
4755 | if (i < PLT64_LARGE_THRESHOLD) | |
4756 | return plt->vma + i * PLT64_ENTRY_SIZE; | |
4757 | ||
4758 | j = (i - PLT64_LARGE_THRESHOLD) % 160; | |
4759 | i -= j; | |
4760 | return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6; | |
4761 | } | |
4762 | else | |
4763 | return rel->address; | |
4764 | } |