1 /* SPARC-specific support for ELF
2 Copyright 2005 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
20 /* This file handles functionality common to the different SPARC ABI's. */
27 #include "elf/sparc.h"
28 #include "opcode/sparc.h"
29 #include "elfxx-sparc.h"
31 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
32 #define MINUS_ONE (~ (bfd_vma) 0)
34 #define ABI_64_P(abfd) \
35 (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
37 /* The relocation "howto" table. */
39 /* Utility for performing the standard initial work of an instruction
41 *PRELOCATION will contain the relocated item.
42 *PINSN will contain the instruction from the input stream.
43 If the result is `bfd_reloc_other' the caller can continue with
44 performing the relocation. Otherwise it must stop and return the
45 value to its caller. */
47 static bfd_reloc_status_type
48 init_insn_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
49 PTR data
, asection
*input_section
, bfd
*output_bfd
,
50 bfd_vma
*prelocation
, bfd_vma
*pinsn
)
53 reloc_howto_type
*howto
= reloc_entry
->howto
;
55 if (output_bfd
!= (bfd
*) NULL
56 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
57 && (! howto
->partial_inplace
58 || reloc_entry
->addend
== 0))
60 reloc_entry
->address
+= input_section
->output_offset
;
64 /* This works because partial_inplace is FALSE. */
65 if (output_bfd
!= NULL
)
66 return bfd_reloc_continue
;
68 if (reloc_entry
->address
> bfd_get_section_limit (abfd
, input_section
))
69 return bfd_reloc_outofrange
;
71 relocation
= (symbol
->value
72 + symbol
->section
->output_section
->vma
73 + symbol
->section
->output_offset
);
74 relocation
+= reloc_entry
->addend
;
75 if (howto
->pc_relative
)
77 relocation
-= (input_section
->output_section
->vma
78 + input_section
->output_offset
);
79 relocation
-= reloc_entry
->address
;
82 *prelocation
= relocation
;
83 *pinsn
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ reloc_entry
->address
);
84 return bfd_reloc_other
;
87 /* For unsupported relocs. */
89 static bfd_reloc_status_type
90 sparc_elf_notsup_reloc (bfd
*abfd ATTRIBUTE_UNUSED
,
91 arelent
*reloc_entry ATTRIBUTE_UNUSED
,
92 asymbol
*symbol ATTRIBUTE_UNUSED
,
93 PTR data ATTRIBUTE_UNUSED
,
94 asection
*input_section ATTRIBUTE_UNUSED
,
95 bfd
*output_bfd ATTRIBUTE_UNUSED
,
96 char **error_message ATTRIBUTE_UNUSED
)
98 return bfd_reloc_notsupported
;
101 /* Handle the WDISP16 reloc. */
103 static bfd_reloc_status_type
104 sparc_elf_wdisp16_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
105 PTR data
, asection
*input_section
, bfd
*output_bfd
,
106 char **error_message ATTRIBUTE_UNUSED
)
110 bfd_reloc_status_type status
;
112 status
= init_insn_reloc (abfd
, reloc_entry
, symbol
, data
,
113 input_section
, output_bfd
, &relocation
, &insn
);
114 if (status
!= bfd_reloc_other
)
117 insn
&= ~ (bfd_vma
) 0x303fff;
118 insn
|= (((relocation
>> 2) & 0xc000) << 6) | ((relocation
>> 2) & 0x3fff);
119 bfd_put_32 (abfd
, insn
, (bfd_byte
*) data
+ reloc_entry
->address
);
121 if ((bfd_signed_vma
) relocation
< - 0x40000
122 || (bfd_signed_vma
) relocation
> 0x3ffff)
123 return bfd_reloc_overflow
;
128 /* Handle the HIX22 reloc. */
130 static bfd_reloc_status_type
131 sparc_elf_hix22_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
132 PTR data
, asection
*input_section
, bfd
*output_bfd
,
133 char **error_message ATTRIBUTE_UNUSED
)
137 bfd_reloc_status_type status
;
139 status
= init_insn_reloc (abfd
, reloc_entry
, symbol
, data
,
140 input_section
, output_bfd
, &relocation
, &insn
);
141 if (status
!= bfd_reloc_other
)
144 relocation
^= MINUS_ONE
;
145 insn
= (insn
&~ (bfd_vma
) 0x3fffff) | ((relocation
>> 10) & 0x3fffff);
146 bfd_put_32 (abfd
, insn
, (bfd_byte
*) data
+ reloc_entry
->address
);
148 if ((relocation
& ~ (bfd_vma
) 0xffffffff) != 0)
149 return bfd_reloc_overflow
;
154 /* Handle the LOX10 reloc. */
156 static bfd_reloc_status_type
157 sparc_elf_lox10_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
158 PTR data
, asection
*input_section
, bfd
*output_bfd
,
159 char **error_message ATTRIBUTE_UNUSED
)
163 bfd_reloc_status_type status
;
165 status
= init_insn_reloc (abfd
, reloc_entry
, symbol
, data
,
166 input_section
, output_bfd
, &relocation
, &insn
);
167 if (status
!= bfd_reloc_other
)
170 insn
= (insn
&~ (bfd_vma
) 0x1fff) | 0x1c00 | (relocation
& 0x3ff);
171 bfd_put_32 (abfd
, insn
, (bfd_byte
*) data
+ reloc_entry
->address
);
176 static reloc_howto_type _bfd_sparc_elf_howto_table
[] =
178 HOWTO(R_SPARC_NONE
, 0,0, 0,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_NONE", FALSE
,0,0x00000000,TRUE
),
179 HOWTO(R_SPARC_8
, 0,0, 8,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_8", FALSE
,0,0x000000ff,TRUE
),
180 HOWTO(R_SPARC_16
, 0,1,16,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_16", FALSE
,0,0x0000ffff,TRUE
),
181 HOWTO(R_SPARC_32
, 0,2,32,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_32", FALSE
,0,0xffffffff,TRUE
),
182 HOWTO(R_SPARC_DISP8
, 0,0, 8,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_DISP8", FALSE
,0,0x000000ff,TRUE
),
183 HOWTO(R_SPARC_DISP16
, 0,1,16,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_DISP16", FALSE
,0,0x0000ffff,TRUE
),
184 HOWTO(R_SPARC_DISP32
, 0,2,32,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_DISP32", FALSE
,0,0xffffffff,TRUE
),
185 HOWTO(R_SPARC_WDISP30
, 2,2,30,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_WDISP30", FALSE
,0,0x3fffffff,TRUE
),
186 HOWTO(R_SPARC_WDISP22
, 2,2,22,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_WDISP22", FALSE
,0,0x003fffff,TRUE
),
187 HOWTO(R_SPARC_HI22
, 10,2,22,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_HI22", FALSE
,0,0x003fffff,TRUE
),
188 HOWTO(R_SPARC_22
, 0,2,22,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_22", FALSE
,0,0x003fffff,TRUE
),
189 HOWTO(R_SPARC_13
, 0,2,13,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_13", FALSE
,0,0x00001fff,TRUE
),
190 HOWTO(R_SPARC_LO10
, 0,2,10,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_LO10", FALSE
,0,0x000003ff,TRUE
),
191 HOWTO(R_SPARC_GOT10
, 0,2,10,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_GOT10", FALSE
,0,0x000003ff,TRUE
),
192 HOWTO(R_SPARC_GOT13
, 0,2,13,FALSE
,0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_GOT13", FALSE
,0,0x00001fff,TRUE
),
193 HOWTO(R_SPARC_GOT22
, 10,2,22,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_GOT22", FALSE
,0,0x003fffff,TRUE
),
194 HOWTO(R_SPARC_PC10
, 0,2,10,TRUE
, 0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_PC10", FALSE
,0,0x000003ff,TRUE
),
195 HOWTO(R_SPARC_PC22
, 10,2,22,TRUE
, 0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_PC22", FALSE
,0,0x003fffff,TRUE
),
196 HOWTO(R_SPARC_WPLT30
, 2,2,30,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_WPLT30", FALSE
,0,0x3fffffff,TRUE
),
197 HOWTO(R_SPARC_COPY
, 0,0,00,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_COPY", FALSE
,0,0x00000000,TRUE
),
198 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
),
199 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
),
200 HOWTO(R_SPARC_RELATIVE
, 0,0,00,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_RELATIVE",FALSE
,0,0x00000000,TRUE
),
201 HOWTO(R_SPARC_UA32
, 0,2,32,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_UA32", FALSE
,0,0xffffffff,TRUE
),
202 HOWTO(R_SPARC_PLT32
, 0,2,32,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_PLT32", FALSE
,0,0xffffffff,TRUE
),
203 HOWTO(R_SPARC_HIPLT22
, 0,0,00,FALSE
,0,complain_overflow_dont
, sparc_elf_notsup_reloc
, "R_SPARC_HIPLT22", FALSE
,0,0x00000000,TRUE
),
204 HOWTO(R_SPARC_LOPLT10
, 0,0,00,FALSE
,0,complain_overflow_dont
, sparc_elf_notsup_reloc
, "R_SPARC_LOPLT10", FALSE
,0,0x00000000,TRUE
),
205 HOWTO(R_SPARC_PCPLT32
, 0,0,00,FALSE
,0,complain_overflow_dont
, sparc_elf_notsup_reloc
, "R_SPARC_PCPLT32", FALSE
,0,0x00000000,TRUE
),
206 HOWTO(R_SPARC_PCPLT22
, 0,0,00,FALSE
,0,complain_overflow_dont
, sparc_elf_notsup_reloc
, "R_SPARC_PCPLT22", FALSE
,0,0x00000000,TRUE
),
207 HOWTO(R_SPARC_PCPLT10
, 0,0,00,FALSE
,0,complain_overflow_dont
, sparc_elf_notsup_reloc
, "R_SPARC_PCPLT10", FALSE
,0,0x00000000,TRUE
),
208 HOWTO(R_SPARC_10
, 0,2,10,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_10", FALSE
,0,0x000003ff,TRUE
),
209 HOWTO(R_SPARC_11
, 0,2,11,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_11", FALSE
,0,0x000007ff,TRUE
),
210 HOWTO(R_SPARC_64
, 0,4,64,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_64", FALSE
,0,MINUS_ONE
, TRUE
),
211 HOWTO(R_SPARC_OLO10
, 0,2,13,FALSE
,0,complain_overflow_signed
, sparc_elf_notsup_reloc
, "R_SPARC_OLO10", FALSE
,0,0x00001fff,TRUE
),
212 HOWTO(R_SPARC_HH22
, 42,2,22,FALSE
,0,complain_overflow_unsigned
,bfd_elf_generic_reloc
, "R_SPARC_HH22", FALSE
,0,0x003fffff,TRUE
),
213 HOWTO(R_SPARC_HM10
, 32,2,10,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_HM10", FALSE
,0,0x000003ff,TRUE
),
214 HOWTO(R_SPARC_LM22
, 10,2,22,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_LM22", FALSE
,0,0x003fffff,TRUE
),
215 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
),
216 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
),
217 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
),
218 HOWTO(R_SPARC_WDISP16
, 2,2,16,TRUE
, 0,complain_overflow_signed
, sparc_elf_wdisp16_reloc
,"R_SPARC_WDISP16", FALSE
,0,0x00000000,TRUE
),
219 HOWTO(R_SPARC_WDISP19
, 2,2,19,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_WDISP19", FALSE
,0,0x0007ffff,TRUE
),
220 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
),
221 HOWTO(R_SPARC_7
, 0,2, 7,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_7", FALSE
,0,0x0000007f,TRUE
),
222 HOWTO(R_SPARC_5
, 0,2, 5,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_5", FALSE
,0,0x0000001f,TRUE
),
223 HOWTO(R_SPARC_6
, 0,2, 6,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_6", FALSE
,0,0x0000003f,TRUE
),
224 HOWTO(R_SPARC_DISP64
, 0,4,64,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_DISP64", FALSE
,0,MINUS_ONE
, TRUE
),
225 HOWTO(R_SPARC_PLT64
, 0,4,64,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_PLT64", FALSE
,0,MINUS_ONE
, TRUE
),
226 HOWTO(R_SPARC_HIX22
, 0,4, 0,FALSE
,0,complain_overflow_bitfield
,sparc_elf_hix22_reloc
, "R_SPARC_HIX22", FALSE
,0,MINUS_ONE
, FALSE
),
227 HOWTO(R_SPARC_LOX10
, 0,4, 0,FALSE
,0,complain_overflow_dont
, sparc_elf_lox10_reloc
, "R_SPARC_LOX10", FALSE
,0,MINUS_ONE
, FALSE
),
228 HOWTO(R_SPARC_H44
, 22,2,22,FALSE
,0,complain_overflow_unsigned
,bfd_elf_generic_reloc
, "R_SPARC_H44", FALSE
,0,0x003fffff,FALSE
),
229 HOWTO(R_SPARC_M44
, 12,2,10,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_M44", FALSE
,0,0x000003ff,FALSE
),
230 HOWTO(R_SPARC_L44
, 0,2,13,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_L44", FALSE
,0,0x00000fff,FALSE
),
231 HOWTO(R_SPARC_REGISTER
, 0,4, 0,FALSE
,0,complain_overflow_bitfield
,sparc_elf_notsup_reloc
, "R_SPARC_REGISTER",FALSE
,0,MINUS_ONE
, FALSE
),
232 HOWTO(R_SPARC_UA64
, 0,4,64,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_UA64", FALSE
,0,MINUS_ONE
, TRUE
),
233 HOWTO(R_SPARC_UA16
, 0,1,16,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_UA16", FALSE
,0,0x0000ffff,TRUE
),
234 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
),
235 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
),
236 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
),
237 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
),
238 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
),
239 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
),
240 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
),
241 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
),
242 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
),
243 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
),
244 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
),
245 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
),
246 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
),
247 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
),
248 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
),
249 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
),
250 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
),
251 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
),
252 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
),
253 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
),
254 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
),
255 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
),
256 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
),
257 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
)
259 static reloc_howto_type sparc_vtinherit_howto
=
260 HOWTO (R_SPARC_GNU_VTINHERIT
, 0,2,0,FALSE
,0,complain_overflow_dont
, NULL
, "R_SPARC_GNU_VTINHERIT", FALSE
,0, 0, FALSE
);
261 static reloc_howto_type sparc_vtentry_howto
=
262 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
);
263 static reloc_howto_type sparc_rev32_howto
=
264 HOWTO(R_SPARC_REV32
, 0,2,32,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_REV32", FALSE
,0,0xffffffff,TRUE
);
266 struct elf_reloc_map
{
267 bfd_reloc_code_real_type bfd_reloc_val
;
268 unsigned char elf_reloc_val
;
271 static const struct elf_reloc_map sparc_reloc_map
[] =
273 { BFD_RELOC_NONE
, R_SPARC_NONE
, },
274 { BFD_RELOC_16
, R_SPARC_16
, },
275 { BFD_RELOC_16_PCREL
, R_SPARC_DISP16
},
276 { BFD_RELOC_8
, R_SPARC_8
},
277 { BFD_RELOC_8_PCREL
, R_SPARC_DISP8
},
278 { BFD_RELOC_CTOR
, R_SPARC_64
},
279 { BFD_RELOC_32
, R_SPARC_32
},
280 { BFD_RELOC_32_PCREL
, R_SPARC_DISP32
},
281 { BFD_RELOC_HI22
, R_SPARC_HI22
},
282 { BFD_RELOC_LO10
, R_SPARC_LO10
, },
283 { BFD_RELOC_32_PCREL_S2
, R_SPARC_WDISP30
},
284 { BFD_RELOC_64_PCREL
, R_SPARC_DISP64
},
285 { BFD_RELOC_SPARC22
, R_SPARC_22
},
286 { BFD_RELOC_SPARC13
, R_SPARC_13
},
287 { BFD_RELOC_SPARC_GOT10
, R_SPARC_GOT10
},
288 { BFD_RELOC_SPARC_GOT13
, R_SPARC_GOT13
},
289 { BFD_RELOC_SPARC_GOT22
, R_SPARC_GOT22
},
290 { BFD_RELOC_SPARC_PC10
, R_SPARC_PC10
},
291 { BFD_RELOC_SPARC_PC22
, R_SPARC_PC22
},
292 { BFD_RELOC_SPARC_WPLT30
, R_SPARC_WPLT30
},
293 { BFD_RELOC_SPARC_COPY
, R_SPARC_COPY
},
294 { BFD_RELOC_SPARC_GLOB_DAT
, R_SPARC_GLOB_DAT
},
295 { BFD_RELOC_SPARC_JMP_SLOT
, R_SPARC_JMP_SLOT
},
296 { BFD_RELOC_SPARC_RELATIVE
, R_SPARC_RELATIVE
},
297 { BFD_RELOC_SPARC_WDISP22
, R_SPARC_WDISP22
},
298 { BFD_RELOC_SPARC_UA16
, R_SPARC_UA16
},
299 { BFD_RELOC_SPARC_UA32
, R_SPARC_UA32
},
300 { BFD_RELOC_SPARC_UA64
, R_SPARC_UA64
},
301 { BFD_RELOC_SPARC_10
, R_SPARC_10
},
302 { BFD_RELOC_SPARC_11
, R_SPARC_11
},
303 { BFD_RELOC_SPARC_64
, R_SPARC_64
},
304 { BFD_RELOC_SPARC_OLO10
, R_SPARC_OLO10
},
305 { BFD_RELOC_SPARC_HH22
, R_SPARC_HH22
},
306 { BFD_RELOC_SPARC_HM10
, R_SPARC_HM10
},
307 { BFD_RELOC_SPARC_LM22
, R_SPARC_LM22
},
308 { BFD_RELOC_SPARC_PC_HH22
, R_SPARC_PC_HH22
},
309 { BFD_RELOC_SPARC_PC_HM10
, R_SPARC_PC_HM10
},
310 { BFD_RELOC_SPARC_PC_LM22
, R_SPARC_PC_LM22
},
311 { BFD_RELOC_SPARC_WDISP16
, R_SPARC_WDISP16
},
312 { BFD_RELOC_SPARC_WDISP19
, R_SPARC_WDISP19
},
313 { BFD_RELOC_SPARC_7
, R_SPARC_7
},
314 { BFD_RELOC_SPARC_5
, R_SPARC_5
},
315 { BFD_RELOC_SPARC_6
, R_SPARC_6
},
316 { BFD_RELOC_SPARC_DISP64
, R_SPARC_DISP64
},
317 { BFD_RELOC_SPARC_TLS_GD_HI22
, R_SPARC_TLS_GD_HI22
},
318 { BFD_RELOC_SPARC_TLS_GD_LO10
, R_SPARC_TLS_GD_LO10
},
319 { BFD_RELOC_SPARC_TLS_GD_ADD
, R_SPARC_TLS_GD_ADD
},
320 { BFD_RELOC_SPARC_TLS_GD_CALL
, R_SPARC_TLS_GD_CALL
},
321 { BFD_RELOC_SPARC_TLS_LDM_HI22
, R_SPARC_TLS_LDM_HI22
},
322 { BFD_RELOC_SPARC_TLS_LDM_LO10
, R_SPARC_TLS_LDM_LO10
},
323 { BFD_RELOC_SPARC_TLS_LDM_ADD
, R_SPARC_TLS_LDM_ADD
},
324 { BFD_RELOC_SPARC_TLS_LDM_CALL
, R_SPARC_TLS_LDM_CALL
},
325 { BFD_RELOC_SPARC_TLS_LDO_HIX22
, R_SPARC_TLS_LDO_HIX22
},
326 { BFD_RELOC_SPARC_TLS_LDO_LOX10
, R_SPARC_TLS_LDO_LOX10
},
327 { BFD_RELOC_SPARC_TLS_LDO_ADD
, R_SPARC_TLS_LDO_ADD
},
328 { BFD_RELOC_SPARC_TLS_IE_HI22
, R_SPARC_TLS_IE_HI22
},
329 { BFD_RELOC_SPARC_TLS_IE_LO10
, R_SPARC_TLS_IE_LO10
},
330 { BFD_RELOC_SPARC_TLS_IE_LD
, R_SPARC_TLS_IE_LD
},
331 { BFD_RELOC_SPARC_TLS_IE_LDX
, R_SPARC_TLS_IE_LDX
},
332 { BFD_RELOC_SPARC_TLS_IE_ADD
, R_SPARC_TLS_IE_ADD
},
333 { BFD_RELOC_SPARC_TLS_LE_HIX22
, R_SPARC_TLS_LE_HIX22
},
334 { BFD_RELOC_SPARC_TLS_LE_LOX10
, R_SPARC_TLS_LE_LOX10
},
335 { BFD_RELOC_SPARC_TLS_DTPMOD32
, R_SPARC_TLS_DTPMOD32
},
336 { BFD_RELOC_SPARC_TLS_DTPMOD64
, R_SPARC_TLS_DTPMOD64
},
337 { BFD_RELOC_SPARC_TLS_DTPOFF32
, R_SPARC_TLS_DTPOFF32
},
338 { BFD_RELOC_SPARC_TLS_DTPOFF64
, R_SPARC_TLS_DTPOFF64
},
339 { BFD_RELOC_SPARC_TLS_TPOFF32
, R_SPARC_TLS_TPOFF32
},
340 { BFD_RELOC_SPARC_TLS_TPOFF64
, R_SPARC_TLS_TPOFF64
},
341 { BFD_RELOC_SPARC_PLT32
, R_SPARC_PLT32
},
342 { BFD_RELOC_SPARC_PLT64
, R_SPARC_PLT64
},
343 { BFD_RELOC_SPARC_HIX22
, R_SPARC_HIX22
},
344 { BFD_RELOC_SPARC_LOX10
, R_SPARC_LOX10
},
345 { BFD_RELOC_SPARC_H44
, R_SPARC_H44
},
346 { BFD_RELOC_SPARC_M44
, R_SPARC_M44
},
347 { BFD_RELOC_SPARC_L44
, R_SPARC_L44
},
348 { BFD_RELOC_SPARC_REGISTER
, R_SPARC_REGISTER
},
349 { BFD_RELOC_VTABLE_INHERIT
, R_SPARC_GNU_VTINHERIT
},
350 { BFD_RELOC_VTABLE_ENTRY
, R_SPARC_GNU_VTENTRY
},
351 { BFD_RELOC_SPARC_REV32
, R_SPARC_REV32
},
355 _bfd_sparc_elf_reloc_type_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
356 bfd_reloc_code_real_type code
)
362 case BFD_RELOC_VTABLE_INHERIT
:
363 return &sparc_vtinherit_howto
;
365 case BFD_RELOC_VTABLE_ENTRY
:
366 return &sparc_vtentry_howto
;
368 case BFD_RELOC_SPARC_REV32
:
369 return &sparc_rev32_howto
;
373 i
< sizeof (sparc_reloc_map
) / sizeof (struct elf_reloc_map
);
376 if (sparc_reloc_map
[i
].bfd_reloc_val
== code
)
377 return (_bfd_sparc_elf_howto_table
378 + (int) sparc_reloc_map
[i
].elf_reloc_val
);
381 bfd_set_error (bfd_error_bad_value
);
386 _bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type
)
390 case R_SPARC_GNU_VTINHERIT
:
391 return &sparc_vtinherit_howto
;
393 case R_SPARC_GNU_VTENTRY
:
394 return &sparc_vtentry_howto
;
397 return &sparc_rev32_howto
;
400 if (r_type
>= (unsigned int) R_SPARC_max_std
)
402 (*_bfd_error_handler
) (_("invalid relocation type %d"),
404 r_type
= R_SPARC_NONE
;
406 return &_bfd_sparc_elf_howto_table
[r_type
];
410 /* Both 32-bit and 64-bit sparc encode this in an identical manner,
411 so just take advantage of that. */
412 #define SPARC_ELF_R_TYPE(r_info) \
416 _bfd_sparc_elf_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*cache_ptr
,
417 Elf_Internal_Rela
*dst
)
419 unsigned int r_type
= SPARC_ELF_R_TYPE (dst
->r_info
);
421 cache_ptr
->howto
= _bfd_sparc_elf_info_to_howto_ptr (r_type
);
425 /* The nop opcode we use. */
426 #define SPARC_NOP 0x01000000
428 #define SPARC_INSN_BYTES 4
430 /* The SPARC linker needs to keep track of the number of relocs that it
431 decides to copy as dynamic relocs in check_relocs for each symbol.
432 This is so that it can later discard them if they are found to be
433 unnecessary. We store the information in a field extending the
434 regular ELF linker hash table. */
436 struct _bfd_sparc_elf_dyn_relocs
438 struct _bfd_sparc_elf_dyn_relocs
*next
;
440 /* The input section of the reloc. */
443 /* Total number of relocs copied for the input section. */
446 /* Number of pc-relative relocs copied for the input section. */
447 bfd_size_type pc_count
;
450 /* SPARC ELF linker hash entry. */
452 struct _bfd_sparc_elf_link_hash_entry
454 struct elf_link_hash_entry elf
;
456 /* Track dynamic relocs copied for this symbol. */
457 struct _bfd_sparc_elf_dyn_relocs
*dyn_relocs
;
459 #define GOT_UNKNOWN 0
463 unsigned char tls_type
;
466 #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
468 struct _bfd_sparc_elf_obj_tdata
470 struct elf_obj_tdata root
;
472 /* tls_type for each local got entry. */
473 char *local_got_tls_type
;
475 /* TRUE if TLS GD relocs has been seen for this object. */
476 bfd_boolean has_tlsgd
;
479 #define _bfd_sparc_elf_tdata(abfd) \
480 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
482 #define _bfd_sparc_elf_local_got_tls_type(abfd) \
483 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
486 _bfd_sparc_elf_mkobject (bfd
*abfd
)
488 bfd_size_type amt
= sizeof (struct _bfd_sparc_elf_obj_tdata
);
489 abfd
->tdata
.any
= bfd_zalloc (abfd
, amt
);
490 if (abfd
->tdata
.any
== NULL
)
496 sparc_put_word_32 (bfd
*bfd
, bfd_vma val
, void *ptr
)
498 bfd_put_32 (bfd
, val
, ptr
);
502 sparc_put_word_64 (bfd
*bfd
, bfd_vma val
, void *ptr
)
504 bfd_put_64 (bfd
, val
, ptr
);
508 sparc_elf_append_rela_64 (bfd
*abfd ATTRIBUTE_UNUSED
,
509 asection
*s ATTRIBUTE_UNUSED
,
510 Elf_Internal_Rela
*rel ATTRIBUTE_UNUSED
)
513 Elf64_External_Rela
*loc64
;
515 loc64
= (Elf64_External_Rela
*) s
->contents
;
516 loc64
+= s
->reloc_count
++;
517 bfd_elf64_swap_reloca_out (abfd
, rel
, (bfd_byte
*) loc64
);
522 sparc_elf_append_rela_32 (bfd
*abfd
, asection
*s
, Elf_Internal_Rela
*rel
)
524 Elf32_External_Rela
*loc32
;
526 loc32
= (Elf32_External_Rela
*) s
->contents
;
527 loc32
+= s
->reloc_count
++;
528 bfd_elf32_swap_reloca_out (abfd
, rel
, (bfd_byte
*) loc32
);
532 sparc_elf_r_info_64 (Elf_Internal_Rela
*in_rel ATTRIBUTE_UNUSED
,
533 bfd_vma index ATTRIBUTE_UNUSED
,
534 bfd_vma type ATTRIBUTE_UNUSED
)
536 return ELF64_R_INFO (index
,
538 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel
->r_info
),
543 sparc_elf_r_info_32 (Elf_Internal_Rela
*in_rel ATTRIBUTE_UNUSED
,
544 bfd_vma index
, bfd_vma type
)
546 return ELF32_R_INFO (index
, type
);
550 sparc_elf_r_symndx_64 (bfd_vma r_info
)
552 bfd_vma r_symndx
= ELF32_R_SYM (r_info
);
553 return (r_symndx
>> 24);
557 sparc_elf_r_symndx_32 (bfd_vma r_info
)
559 return ELF32_R_SYM (r_info
);
564 #define PLT32_ENTRY_SIZE 12
565 #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
567 /* The first four entries in a 32-bit procedure linkage table are reserved,
568 and the initial contents are unimportant (we zero them out).
569 Subsequent entries look like this. See the SVR4 ABI SPARC
570 supplement to see how this works. */
572 /* sethi %hi(.-.plt0),%g1. We fill in the address later. */
573 #define PLT32_ENTRY_WORD0 0x03000000
574 /* b,a .plt0. We fill in the offset later. */
575 #define PLT32_ENTRY_WORD1 0x30800000
577 #define PLT32_ENTRY_WORD2 SPARC_NOP
580 sparc32_plt_entry_build (bfd
*output_bfd
, asection
*splt
, bfd_vma offset
,
581 bfd_vma max ATTRIBUTE_UNUSED
,
584 bfd_put_32 (output_bfd
,
585 PLT32_ENTRY_WORD0
+ offset
,
586 splt
->contents
+ offset
);
587 bfd_put_32 (output_bfd
,
589 + (((- (offset
+ 4)) >> 2) & 0x3fffff)),
590 splt
->contents
+ offset
+ 4);
591 bfd_put_32 (output_bfd
, (bfd_vma
) PLT32_ENTRY_WORD2
,
592 splt
->contents
+ offset
+ 8);
596 return offset
/ PLT32_ENTRY_SIZE
- 4;
599 /* Both the headers and the entries are icache aligned. */
600 #define PLT64_ENTRY_SIZE 32
601 #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
602 #define PLT64_LARGE_THRESHOLD 32768
605 sparc64_plt_entry_build (bfd
*output_bfd
, asection
*splt
, bfd_vma offset
,
606 bfd_vma max
, bfd_vma
*r_offset
)
608 unsigned char *entry
= splt
->contents
+ offset
;
609 const unsigned int nop
= SPARC_NOP
;
612 if (offset
< (PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
))
614 unsigned int sethi
, ba
;
618 index
= (offset
/ PLT64_ENTRY_SIZE
);
620 sethi
= 0x03000000 | (index
* PLT64_ENTRY_SIZE
);
622 | (((splt
->contents
+ PLT64_ENTRY_SIZE
) - (entry
+ 4)) / 4 & 0x7ffff);
624 bfd_put_32 (output_bfd
, (bfd_vma
) sethi
, entry
);
625 bfd_put_32 (output_bfd
, (bfd_vma
) ba
, entry
+ 4);
626 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 8);
627 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 12);
628 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 16);
629 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 20);
630 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 24);
631 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 28);
637 int block
, last_block
, ofs
, last_ofs
, chunks_this_block
;
638 const int insn_chunk_size
= (6 * 4);
639 const int ptr_chunk_size
= (1 * 8);
640 const int entries_per_block
= 160;
641 const int block_size
= entries_per_block
* (insn_chunk_size
644 /* Entries 32768 and higher are grouped into blocks of 160.
645 The blocks are further subdivided into 160 sequences of
646 6 instructions and 160 pointers. If a block does not require
647 the full 160 entries, let's say it requires N, then there
648 will be N sequences of 6 instructions and N pointers. */
650 offset
-= (PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
);
651 max
-= (PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
);
653 block
= offset
/ block_size
;
654 last_block
= max
/ block_size
;
655 if (block
!= last_block
)
657 chunks_this_block
= 160;
661 last_ofs
= max
% block_size
;
662 chunks_this_block
= last_ofs
/ (insn_chunk_size
+ ptr_chunk_size
);
665 ofs
= offset
% block_size
;
667 index
= (PLT64_LARGE_THRESHOLD
+
669 (ofs
/ insn_chunk_size
));
672 + (PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
)
673 + (block
* block_size
)
674 + (chunks_this_block
* insn_chunk_size
)
675 + (ofs
/ insn_chunk_size
) * ptr_chunk_size
;
677 *r_offset
= (bfd_vma
) (ptr
- splt
->contents
);
679 ldx
= 0xc25be000 | ((ptr
- (entry
+4)) & 0x1fff);
687 bfd_put_32 (output_bfd
, (bfd_vma
) 0x8a10000f, entry
);
688 bfd_put_32 (output_bfd
, (bfd_vma
) 0x40000002, entry
+ 4);
689 bfd_put_32 (output_bfd
, (bfd_vma
) SPARC_NOP
, entry
+ 8);
690 bfd_put_32 (output_bfd
, (bfd_vma
) ldx
, entry
+ 12);
691 bfd_put_32 (output_bfd
, (bfd_vma
) 0x83c3c001, entry
+ 16);
692 bfd_put_32 (output_bfd
, (bfd_vma
) 0x9e100005, entry
+ 20);
694 bfd_put_64 (output_bfd
, (bfd_vma
) (splt
->contents
- (entry
+ 4)), ptr
);
700 #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
701 htab->put_word(bfd, val, ptr)
703 #define SPARC_ELF_APPEND_RELA(htab, bfd, sec, rela) \
704 htab->append_rela(bfd, sec, rela)
706 #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
707 htab->r_info(in_rel, index, type)
709 #define SPARC_ELF_R_SYMNDX(htab, r_info) \
710 htab->r_symndx(r_info)
712 #define SPARC_ELF_WORD_BYTES(htab) \
715 #define SPARC_ELF_RELA_BYTES(htab) \
718 #define SPARC_ELF_DTPOFF_RELOC(htab) \
721 #define SPARC_ELF_DTPMOD_RELOC(htab) \
724 #define SPARC_ELF_TPOFF_RELOC(htab) \
727 #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
728 htab->build_plt_entry (obfd, splt, off, max, r_off)
730 /* Create an entry in an SPARC ELF linker hash table. */
732 static struct bfd_hash_entry
*
733 link_hash_newfunc (struct bfd_hash_entry
*entry
,
734 struct bfd_hash_table
*table
, const char *string
)
736 /* Allocate the structure if it has not already been allocated by a
740 entry
= bfd_hash_allocate (table
,
741 sizeof (struct _bfd_sparc_elf_link_hash_entry
));
746 /* Call the allocation method of the superclass. */
747 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
750 struct _bfd_sparc_elf_link_hash_entry
*eh
;
752 eh
= (struct _bfd_sparc_elf_link_hash_entry
*) entry
;
753 eh
->dyn_relocs
= NULL
;
754 eh
->tls_type
= GOT_UNKNOWN
;
760 /* The name of the dynamic interpreter. This is put in the .interp
763 #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
764 #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
766 /* Create a SPARC ELF linker hash table. */
768 struct bfd_link_hash_table
*
769 _bfd_sparc_elf_link_hash_table_create (bfd
*abfd
)
771 struct _bfd_sparc_elf_link_hash_table
*ret
;
772 bfd_size_type amt
= sizeof (struct _bfd_sparc_elf_link_hash_table
);
774 ret
= (struct _bfd_sparc_elf_link_hash_table
*) bfd_zmalloc (amt
);
780 ret
->put_word
= sparc_put_word_64
;
781 ret
->append_rela
= sparc_elf_append_rela_64
;
782 ret
->r_info
= sparc_elf_r_info_64
;
783 ret
->r_symndx
= sparc_elf_r_symndx_64
;
784 ret
->build_plt_entry
= sparc64_plt_entry_build
;
785 ret
->dtpoff_reloc
= R_SPARC_TLS_DTPOFF64
;
786 ret
->dtpmod_reloc
= R_SPARC_TLS_DTPMOD64
;
787 ret
->tpoff_reloc
= R_SPARC_TLS_TPOFF64
;
788 ret
->word_align_power
= 3;
789 ret
->align_power_max
= 4;
790 ret
->bytes_per_word
= 8;
791 ret
->bytes_per_rela
= sizeof (Elf64_External_Rela
);
792 ret
->dynamic_interpreter
= ELF64_DYNAMIC_INTERPRETER
;
793 ret
->dynamic_interpreter_size
= sizeof ELF64_DYNAMIC_INTERPRETER
;
797 ret
->put_word
= sparc_put_word_32
;
798 ret
->append_rela
= sparc_elf_append_rela_32
;
799 ret
->r_info
= sparc_elf_r_info_32
;
800 ret
->r_symndx
= sparc_elf_r_symndx_32
;
801 ret
->build_plt_entry
= sparc32_plt_entry_build
;
802 ret
->dtpoff_reloc
= R_SPARC_TLS_DTPOFF32
;
803 ret
->dtpmod_reloc
= R_SPARC_TLS_DTPMOD32
;
804 ret
->tpoff_reloc
= R_SPARC_TLS_TPOFF32
;
805 ret
->word_align_power
= 2;
806 ret
->align_power_max
= 3;
807 ret
->bytes_per_word
= 4;
808 ret
->bytes_per_rela
= sizeof (Elf32_External_Rela
);
809 ret
->dynamic_interpreter
= ELF32_DYNAMIC_INTERPRETER
;
810 ret
->dynamic_interpreter_size
= sizeof ELF32_DYNAMIC_INTERPRETER
;
813 if (! _bfd_elf_link_hash_table_init (&ret
->elf
, abfd
, link_hash_newfunc
))
819 return &ret
->elf
.root
;
822 /* Create .got and .rela.got sections in DYNOBJ, and set up
823 shortcuts to them in our hash table. */
826 create_got_section (bfd
*dynobj
, struct bfd_link_info
*info
)
828 struct _bfd_sparc_elf_link_hash_table
*htab
;
830 if (! _bfd_elf_create_got_section (dynobj
, info
))
833 htab
= _bfd_sparc_elf_hash_table (info
);
834 htab
->sgot
= bfd_get_section_by_name (dynobj
, ".got");
835 BFD_ASSERT (htab
->sgot
!= NULL
);
837 htab
->srelgot
= bfd_make_section_with_flags (dynobj
, ".rela.got",
844 if (htab
->srelgot
== NULL
845 || ! bfd_set_section_alignment (dynobj
, htab
->srelgot
,
846 htab
->word_align_power
))
851 /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
852 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
856 _bfd_sparc_elf_create_dynamic_sections (bfd
*dynobj
,
857 struct bfd_link_info
*info
)
859 struct _bfd_sparc_elf_link_hash_table
*htab
;
861 htab
= _bfd_sparc_elf_hash_table (info
);
862 if (!htab
->sgot
&& !create_got_section (dynobj
, info
))
865 if (!_bfd_elf_create_dynamic_sections (dynobj
, info
))
868 htab
->splt
= bfd_get_section_by_name (dynobj
, ".plt");
869 htab
->srelplt
= bfd_get_section_by_name (dynobj
, ".rela.plt");
870 htab
->sdynbss
= bfd_get_section_by_name (dynobj
, ".dynbss");
872 htab
->srelbss
= bfd_get_section_by_name (dynobj
, ".rela.bss");
874 if (!htab
->splt
|| !htab
->srelplt
|| !htab
->sdynbss
875 || (!info
->shared
&& !htab
->srelbss
))
881 /* Copy the extra info we tack onto an elf_link_hash_entry. */
884 _bfd_sparc_elf_copy_indirect_symbol (const struct elf_backend_data
*bed
,
885 struct elf_link_hash_entry
*dir
,
886 struct elf_link_hash_entry
*ind
)
888 struct _bfd_sparc_elf_link_hash_entry
*edir
, *eind
;
890 edir
= (struct _bfd_sparc_elf_link_hash_entry
*) dir
;
891 eind
= (struct _bfd_sparc_elf_link_hash_entry
*) ind
;
893 if (eind
->dyn_relocs
!= NULL
)
895 if (edir
->dyn_relocs
!= NULL
)
897 struct _bfd_sparc_elf_dyn_relocs
**pp
;
898 struct _bfd_sparc_elf_dyn_relocs
*p
;
900 if (ind
->root
.type
== bfd_link_hash_indirect
)
903 /* Add reloc counts against the weak sym to the strong sym
904 list. Merge any entries against the same section. */
905 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
; )
907 struct _bfd_sparc_elf_dyn_relocs
*q
;
909 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
910 if (q
->sec
== p
->sec
)
912 q
->pc_count
+= p
->pc_count
;
913 q
->count
+= p
->count
;
920 *pp
= edir
->dyn_relocs
;
923 edir
->dyn_relocs
= eind
->dyn_relocs
;
924 eind
->dyn_relocs
= NULL
;
927 if (ind
->root
.type
== bfd_link_hash_indirect
928 && dir
->got
.refcount
<= 0)
930 edir
->tls_type
= eind
->tls_type
;
931 eind
->tls_type
= GOT_UNKNOWN
;
933 _bfd_elf_link_hash_copy_indirect (bed
, dir
, ind
);
937 sparc_elf_tls_transition (struct bfd_link_info
*info
, bfd
*abfd
,
938 int r_type
, int is_local
)
940 if (! ABI_64_P (abfd
)
941 && r_type
== R_SPARC_TLS_GD_HI22
942 && ! _bfd_sparc_elf_tdata (abfd
)->has_tlsgd
)
943 r_type
= R_SPARC_REV32
;
950 case R_SPARC_TLS_GD_HI22
:
952 return R_SPARC_TLS_LE_HIX22
;
953 return R_SPARC_TLS_IE_HI22
;
954 case R_SPARC_TLS_GD_LO10
:
956 return R_SPARC_TLS_LE_LOX10
;
957 return R_SPARC_TLS_IE_LO10
;
958 case R_SPARC_TLS_IE_HI22
:
960 return R_SPARC_TLS_LE_HIX22
;
962 case R_SPARC_TLS_IE_LO10
:
964 return R_SPARC_TLS_LE_LOX10
;
966 case R_SPARC_TLS_LDM_HI22
:
967 return R_SPARC_TLS_LE_HIX22
;
968 case R_SPARC_TLS_LDM_LO10
:
969 return R_SPARC_TLS_LE_LOX10
;
975 /* Look through the relocs for a section during the first phase, and
976 allocate space in the global offset table or procedure linkage
980 _bfd_sparc_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
981 asection
*sec
, const Elf_Internal_Rela
*relocs
)
983 struct _bfd_sparc_elf_link_hash_table
*htab
;
984 Elf_Internal_Shdr
*symtab_hdr
;
985 struct elf_link_hash_entry
**sym_hashes
;
986 bfd_vma
*local_got_offsets
;
987 const Elf_Internal_Rela
*rel
;
988 const Elf_Internal_Rela
*rel_end
;
991 bfd_boolean checked_tlsgd
= FALSE
;
993 if (info
->relocatable
)
996 htab
= _bfd_sparc_elf_hash_table (info
);
997 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
998 sym_hashes
= elf_sym_hashes (abfd
);
999 local_got_offsets
= elf_local_got_offsets (abfd
);
1003 if (ABI_64_P (abfd
))
1004 num_relocs
= NUM_SHDR_ENTRIES (& elf_section_data (sec
)->rel_hdr
);
1006 num_relocs
= sec
->reloc_count
;
1007 rel_end
= relocs
+ num_relocs
;
1008 for (rel
= relocs
; rel
< rel_end
; rel
++)
1010 unsigned int r_type
;
1011 unsigned long r_symndx
;
1012 struct elf_link_hash_entry
*h
;
1014 r_symndx
= SPARC_ELF_R_SYMNDX (htab
, rel
->r_info
);
1015 r_type
= SPARC_ELF_R_TYPE (rel
->r_info
);
1017 if (r_symndx
>= NUM_SHDR_ENTRIES (symtab_hdr
))
1019 (*_bfd_error_handler
) (_("%B: bad symbol index: %d"),
1024 if (r_symndx
< symtab_hdr
->sh_info
)
1028 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
1029 while (h
->root
.type
== bfd_link_hash_indirect
1030 || h
->root
.type
== bfd_link_hash_warning
)
1031 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1034 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1035 with R_SPARC_TLS_GD_HI22. */
1036 if (! ABI_64_P (abfd
) && ! checked_tlsgd
)
1039 case R_SPARC_TLS_GD_HI22
:
1041 const Elf_Internal_Rela
*relt
;
1043 for (relt
= rel
+ 1; relt
< rel_end
; relt
++)
1044 if (ELF32_R_TYPE (relt
->r_info
) == R_SPARC_TLS_GD_LO10
1045 || ELF32_R_TYPE (relt
->r_info
) == R_SPARC_TLS_GD_ADD
1046 || ELF32_R_TYPE (relt
->r_info
) == R_SPARC_TLS_GD_CALL
)
1048 checked_tlsgd
= TRUE
;
1049 _bfd_sparc_elf_tdata (abfd
)->has_tlsgd
= relt
< rel_end
;
1052 case R_SPARC_TLS_GD_LO10
:
1053 case R_SPARC_TLS_GD_ADD
:
1054 case R_SPARC_TLS_GD_CALL
:
1055 checked_tlsgd
= TRUE
;
1056 _bfd_sparc_elf_tdata (abfd
)->has_tlsgd
= TRUE
;
1060 r_type
= sparc_elf_tls_transition (info
, abfd
, r_type
, h
== NULL
);
1063 case R_SPARC_TLS_LDM_HI22
:
1064 case R_SPARC_TLS_LDM_LO10
:
1065 htab
->tls_ldm_got
.refcount
+= 1;
1068 case R_SPARC_TLS_LE_HIX22
:
1069 case R_SPARC_TLS_LE_LOX10
:
1074 case R_SPARC_TLS_IE_HI22
:
1075 case R_SPARC_TLS_IE_LO10
:
1077 info
->flags
|= DF_STATIC_TLS
;
1083 case R_SPARC_TLS_GD_HI22
:
1084 case R_SPARC_TLS_GD_LO10
:
1085 /* This symbol requires a global offset table entry. */
1087 int tls_type
, old_tls_type
;
1095 tls_type
= GOT_NORMAL
;
1097 case R_SPARC_TLS_GD_HI22
:
1098 case R_SPARC_TLS_GD_LO10
:
1099 tls_type
= GOT_TLS_GD
;
1101 case R_SPARC_TLS_IE_HI22
:
1102 case R_SPARC_TLS_IE_LO10
:
1103 tls_type
= GOT_TLS_IE
;
1109 h
->got
.refcount
+= 1;
1110 old_tls_type
= _bfd_sparc_elf_hash_entry(h
)->tls_type
;
1114 bfd_signed_vma
*local_got_refcounts
;
1116 /* This is a global offset table entry for a local symbol. */
1117 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1118 if (local_got_refcounts
== NULL
)
1122 size
= symtab_hdr
->sh_info
;
1123 size
*= (sizeof (bfd_signed_vma
) + sizeof(char));
1124 local_got_refcounts
= ((bfd_signed_vma
*)
1125 bfd_zalloc (abfd
, size
));
1126 if (local_got_refcounts
== NULL
)
1128 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
1129 _bfd_sparc_elf_local_got_tls_type (abfd
)
1130 = (char *) (local_got_refcounts
+ symtab_hdr
->sh_info
);
1132 local_got_refcounts
[r_symndx
] += 1;
1133 old_tls_type
= _bfd_sparc_elf_local_got_tls_type (abfd
) [r_symndx
];
1136 /* If a TLS symbol is accessed using IE at least once,
1137 there is no point to use dynamic model for it. */
1138 if (old_tls_type
!= tls_type
&& old_tls_type
!= GOT_UNKNOWN
1139 && (old_tls_type
!= GOT_TLS_GD
1140 || tls_type
!= GOT_TLS_IE
))
1142 if (old_tls_type
== GOT_TLS_IE
&& tls_type
== GOT_TLS_GD
)
1143 tls_type
= old_tls_type
;
1146 (*_bfd_error_handler
)
1147 (_("%B: `%s' accessed both as normal and thread local symbol"),
1148 abfd
, h
? h
->root
.root
.string
: "<local>");
1153 if (old_tls_type
!= tls_type
)
1156 _bfd_sparc_elf_hash_entry (h
)->tls_type
= tls_type
;
1158 _bfd_sparc_elf_local_got_tls_type (abfd
) [r_symndx
] = tls_type
;
1162 if (htab
->sgot
== NULL
)
1164 if (htab
->elf
.dynobj
== NULL
)
1165 htab
->elf
.dynobj
= abfd
;
1166 if (!create_got_section (htab
->elf
.dynobj
, info
))
1171 case R_SPARC_TLS_GD_CALL
:
1172 case R_SPARC_TLS_LDM_CALL
:
1175 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1177 struct bfd_link_hash_entry
*bh
= NULL
;
1178 if (! _bfd_generic_link_add_one_symbol (info
, abfd
,
1179 "__tls_get_addr", 0,
1180 bfd_und_section_ptr
, 0,
1184 h
= (struct elf_link_hash_entry
*) bh
;
1191 case R_SPARC_WPLT30
:
1192 case R_SPARC_HIPLT22
:
1193 case R_SPARC_LOPLT10
:
1194 case R_SPARC_PCPLT32
:
1195 case R_SPARC_PCPLT22
:
1196 case R_SPARC_PCPLT10
:
1198 /* This symbol requires a procedure linkage table entry. We
1199 actually build the entry in adjust_dynamic_symbol,
1200 because this might be a case of linking PIC code without
1201 linking in any dynamic objects, in which case we don't
1202 need to generate a procedure linkage table after all. */
1206 if (! ABI_64_P (abfd
))
1208 /* The Solaris native assembler will generate a WPLT30
1209 reloc for a local symbol if you assemble a call from
1210 one section to another when using -K pic. We treat
1212 if (ELF32_R_TYPE (rel
->r_info
) == R_SPARC_PLT32
)
1217 /* It does not make sense to have a procedure linkage
1218 table entry for a local symbol. */
1219 bfd_set_error (bfd_error_bad_value
);
1228 this_r_type
= SPARC_ELF_R_TYPE (rel
->r_info
);
1229 if (this_r_type
== R_SPARC_PLT32
1230 || this_r_type
== R_SPARC_PLT64
)
1233 h
->plt
.refcount
+= 1;
1238 case R_SPARC_PC_HH22
:
1239 case R_SPARC_PC_HM10
:
1240 case R_SPARC_PC_LM22
:
1245 && strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
1250 case R_SPARC_DISP16
:
1251 case R_SPARC_DISP32
:
1252 case R_SPARC_DISP64
:
1253 case R_SPARC_WDISP30
:
1254 case R_SPARC_WDISP22
:
1255 case R_SPARC_WDISP19
:
1256 case R_SPARC_WDISP16
:
1286 if (h
!= NULL
&& !info
->shared
)
1288 /* We may need a .plt entry if the function this reloc
1289 refers to is in a shared lib. */
1290 h
->plt
.refcount
+= 1;
1293 /* If we are creating a shared library, and this is a reloc
1294 against a global symbol, or a non PC relative reloc
1295 against a local symbol, then we need to copy the reloc
1296 into the shared library. However, if we are linking with
1297 -Bsymbolic, we do not need to copy a reloc against a
1298 global symbol which is defined in an object we are
1299 including in the link (i.e., DEF_REGULAR is set). At
1300 this point we have not seen all the input files, so it is
1301 possible that DEF_REGULAR is not set now but will be set
1302 later (it is never cleared). In case of a weak definition,
1303 DEF_REGULAR may be cleared later by a strong definition in
1304 a shared library. We account for that possibility below by
1305 storing information in the relocs_copied field of the hash
1306 table entry. A similar situation occurs when creating
1307 shared libraries and symbol visibility changes render the
1310 If on the other hand, we are creating an executable, we
1311 may need to keep relocations for symbols satisfied by a
1312 dynamic library if we manage to avoid copy relocs for the
1315 && (sec
->flags
& SEC_ALLOC
) != 0
1316 && (! _bfd_sparc_elf_howto_table
[r_type
].pc_relative
1318 && (! info
->symbolic
1319 || h
->root
.type
== bfd_link_hash_defweak
1320 || !h
->def_regular
))))
1322 && (sec
->flags
& SEC_ALLOC
) != 0
1324 && (h
->root
.type
== bfd_link_hash_defweak
1325 || !h
->def_regular
)))
1327 struct _bfd_sparc_elf_dyn_relocs
*p
;
1328 struct _bfd_sparc_elf_dyn_relocs
**head
;
1330 /* When creating a shared object, we must copy these
1331 relocs into the output file. We create a reloc
1332 section in dynobj and make room for the reloc. */
1338 name
= (bfd_elf_string_from_elf_section
1340 elf_elfheader (abfd
)->e_shstrndx
,
1341 elf_section_data (sec
)->rel_hdr
.sh_name
));
1345 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
1346 && strcmp (bfd_get_section_name (abfd
, sec
),
1349 if (htab
->elf
.dynobj
== NULL
)
1350 htab
->elf
.dynobj
= abfd
;
1351 dynobj
= htab
->elf
.dynobj
;
1353 sreloc
= bfd_get_section_by_name (dynobj
, name
);
1358 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
1359 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
1360 if ((sec
->flags
& SEC_ALLOC
) != 0)
1361 flags
|= SEC_ALLOC
| SEC_LOAD
;
1362 sreloc
= bfd_make_section_with_flags (dynobj
,
1366 || ! bfd_set_section_alignment (dynobj
, sreloc
,
1367 htab
->word_align_power
))
1370 elf_section_data (sec
)->sreloc
= sreloc
;
1373 /* If this is a global symbol, we count the number of
1374 relocations we need for this symbol. */
1376 head
= &((struct _bfd_sparc_elf_link_hash_entry
*) h
)->dyn_relocs
;
1379 /* Track dynamic relocs needed for local syms too.
1380 We really need local syms available to do this
1384 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
,
1389 head
= ((struct _bfd_sparc_elf_dyn_relocs
**)
1390 &elf_section_data (s
)->local_dynrel
);
1394 if (p
== NULL
|| p
->sec
!= sec
)
1396 bfd_size_type amt
= sizeof *p
;
1397 p
= ((struct _bfd_sparc_elf_dyn_relocs
*)
1398 bfd_alloc (htab
->elf
.dynobj
, amt
));
1409 if (_bfd_sparc_elf_howto_table
[r_type
].pc_relative
)
1415 case R_SPARC_GNU_VTINHERIT
:
1416 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
1420 case R_SPARC_GNU_VTENTRY
:
1421 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
1425 case R_SPARC_REGISTER
:
1426 /* Nothing to do. */
1438 _bfd_sparc_elf_gc_mark_hook (asection
*sec
,
1439 struct bfd_link_info
*info
,
1440 Elf_Internal_Rela
*rel
,
1441 struct elf_link_hash_entry
*h
,
1442 Elf_Internal_Sym
*sym
)
1446 struct _bfd_sparc_elf_link_hash_table
*htab
;
1448 htab
= _bfd_sparc_elf_hash_table (info
);
1449 switch (SPARC_ELF_R_TYPE (rel
->r_info
))
1451 case R_SPARC_GNU_VTINHERIT
:
1452 case R_SPARC_GNU_VTENTRY
:
1456 switch (h
->root
.type
)
1458 case bfd_link_hash_defined
:
1459 case bfd_link_hash_defweak
:
1460 return h
->root
.u
.def
.section
;
1462 case bfd_link_hash_common
:
1463 return h
->root
.u
.c
.p
->section
;
1471 return bfd_section_from_elf_index (sec
->owner
, sym
->st_shndx
);
1476 /* Update the got entry reference counts for the section being removed. */
1478 _bfd_sparc_elf_gc_sweep_hook (bfd
*abfd
, struct bfd_link_info
*info
,
1479 asection
*sec
, const Elf_Internal_Rela
*relocs
)
1481 struct _bfd_sparc_elf_link_hash_table
*htab
;
1482 Elf_Internal_Shdr
*symtab_hdr
;
1483 struct elf_link_hash_entry
**sym_hashes
;
1484 bfd_signed_vma
*local_got_refcounts
;
1485 const Elf_Internal_Rela
*rel
, *relend
;
1487 elf_section_data (sec
)->local_dynrel
= NULL
;
1489 htab
= _bfd_sparc_elf_hash_table (info
);
1490 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1491 sym_hashes
= elf_sym_hashes (abfd
);
1492 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1494 relend
= relocs
+ sec
->reloc_count
;
1495 for (rel
= relocs
; rel
< relend
; rel
++)
1497 unsigned long r_symndx
;
1498 unsigned int r_type
;
1499 struct elf_link_hash_entry
*h
= NULL
;
1501 r_symndx
= SPARC_ELF_R_SYMNDX (htab
, rel
->r_info
);
1502 if (r_symndx
>= symtab_hdr
->sh_info
)
1504 struct _bfd_sparc_elf_link_hash_entry
*eh
;
1505 struct _bfd_sparc_elf_dyn_relocs
**pp
;
1506 struct _bfd_sparc_elf_dyn_relocs
*p
;
1508 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
1509 while (h
->root
.type
== bfd_link_hash_indirect
1510 || h
->root
.type
== bfd_link_hash_warning
)
1511 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1512 eh
= (struct _bfd_sparc_elf_link_hash_entry
*) h
;
1513 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
1516 /* Everything must go for SEC. */
1522 r_type
= SPARC_ELF_R_TYPE (rel
->r_info
);
1523 r_type
= sparc_elf_tls_transition (info
, abfd
, r_type
, h
!= NULL
);
1526 case R_SPARC_TLS_LDM_HI22
:
1527 case R_SPARC_TLS_LDM_LO10
:
1528 if (_bfd_sparc_elf_hash_table (info
)->tls_ldm_got
.refcount
> 0)
1529 _bfd_sparc_elf_hash_table (info
)->tls_ldm_got
.refcount
-= 1;
1532 case R_SPARC_TLS_GD_HI22
:
1533 case R_SPARC_TLS_GD_LO10
:
1534 case R_SPARC_TLS_IE_HI22
:
1535 case R_SPARC_TLS_IE_LO10
:
1541 if (h
->got
.refcount
> 0)
1546 if (local_got_refcounts
[r_symndx
] > 0)
1547 local_got_refcounts
[r_symndx
]--;
1553 case R_SPARC_PC_HH22
:
1554 case R_SPARC_PC_HM10
:
1555 case R_SPARC_PC_LM22
:
1557 && strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
1562 case R_SPARC_DISP16
:
1563 case R_SPARC_DISP32
:
1564 case R_SPARC_DISP64
:
1565 case R_SPARC_WDISP30
:
1566 case R_SPARC_WDISP22
:
1567 case R_SPARC_WDISP19
:
1568 case R_SPARC_WDISP16
:
1599 case R_SPARC_WPLT30
:
1602 if (h
->plt
.refcount
> 0)
1615 /* Adjust a symbol defined by a dynamic object and referenced by a
1616 regular object. The current definition is in some section of the
1617 dynamic object, but we're not including those sections. We have to
1618 change the definition to something the rest of the link can
1622 _bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
1623 struct elf_link_hash_entry
*h
)
1625 struct _bfd_sparc_elf_link_hash_table
*htab
;
1626 struct _bfd_sparc_elf_link_hash_entry
* eh
;
1627 struct _bfd_sparc_elf_dyn_relocs
*p
;
1629 unsigned int power_of_two
;
1631 htab
= _bfd_sparc_elf_hash_table (info
);
1633 /* Make sure we know what is going on here. */
1634 BFD_ASSERT (htab
->elf
.dynobj
!= NULL
1636 || h
->u
.weakdef
!= NULL
1639 && !h
->def_regular
)));
1641 /* If this is a function, put it in the procedure linkage table. We
1642 will fill in the contents of the procedure linkage table later
1643 (although we could actually do it here). The STT_NOTYPE
1644 condition is a hack specifically for the Oracle libraries
1645 delivered for Solaris; for some inexplicable reason, they define
1646 some of their functions as STT_NOTYPE when they really should be
1648 if (h
->type
== STT_FUNC
1650 || (h
->type
== STT_NOTYPE
1651 && (h
->root
.type
== bfd_link_hash_defined
1652 || h
->root
.type
== bfd_link_hash_defweak
)
1653 && (h
->root
.u
.def
.section
->flags
& SEC_CODE
) != 0))
1655 if (h
->plt
.refcount
<= 0
1659 && h
->root
.type
!= bfd_link_hash_undefweak
1660 && h
->root
.type
!= bfd_link_hash_undefined
))
1662 /* This case can occur if we saw a WPLT30 reloc in an input
1663 file, but the symbol was never referred to by a dynamic
1664 object, or if all references were garbage collected. In
1665 such a case, we don't actually need to build a procedure
1666 linkage table, and we can just do a WDISP30 reloc instead. */
1667 h
->plt
.offset
= (bfd_vma
) -1;
1674 h
->plt
.offset
= (bfd_vma
) -1;
1676 /* If this is a weak symbol, and there is a real definition, the
1677 processor independent code will have arranged for us to see the
1678 real definition first, and we can just use the same value. */
1679 if (h
->u
.weakdef
!= NULL
)
1681 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
1682 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
1683 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
1684 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
1688 /* This is a reference to a symbol defined by a dynamic object which
1689 is not a function. */
1691 /* If we are creating a shared library, we must presume that the
1692 only references to the symbol are via the global offset table.
1693 For such cases we need not do anything here; the relocations will
1694 be handled correctly by relocate_section. */
1698 /* If there are no references to this symbol that do not use the
1699 GOT, we don't need to generate a copy reloc. */
1700 if (!h
->non_got_ref
)
1703 eh
= (struct _bfd_sparc_elf_link_hash_entry
*) h
;
1704 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
1706 s
= p
->sec
->output_section
;
1707 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
1711 /* If we didn't find any dynamic relocs in read-only sections, then
1712 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1719 /* We must allocate the symbol in our .dynbss section, which will
1720 become part of the .bss section of the executable. There will be
1721 an entry for this symbol in the .dynsym section. The dynamic
1722 object will contain position independent code, so all references
1723 from the dynamic object to this symbol will go through the global
1724 offset table. The dynamic linker will use the .dynsym entry to
1725 determine the address it must put in the global offset table, so
1726 both the dynamic object and the regular object will refer to the
1727 same memory location for the variable. */
1729 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
1730 to copy the initial value out of the dynamic object and into the
1731 runtime process image. We need to remember the offset into the
1732 .rel.bss section we are going to use. */
1733 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
1735 htab
->srelbss
->size
+= SPARC_ELF_RELA_BYTES (htab
);
1739 /* We need to figure out the alignment required for this symbol. I
1740 have no idea how ELF linkers handle this. */
1741 power_of_two
= bfd_log2 (h
->size
);
1742 if (power_of_two
> htab
->align_power_max
)
1743 power_of_two
= htab
->align_power_max
;
1745 /* Apply the required alignment. */
1747 s
->size
= BFD_ALIGN (s
->size
, (bfd_size_type
) (1 << power_of_two
));
1748 if (power_of_two
> bfd_get_section_alignment (dynobj
, s
))
1750 if (! bfd_set_section_alignment (dynobj
, s
, power_of_two
))
1754 /* Define the symbol as being at this point in the section. */
1755 h
->root
.u
.def
.section
= s
;
1756 h
->root
.u
.def
.value
= s
->size
;
1758 /* Increment the section size to make room for the symbol. */
1764 /* Allocate space in .plt, .got and associated reloc sections for
1768 allocate_dynrelocs (struct elf_link_hash_entry
*h
, PTR inf
)
1770 struct bfd_link_info
*info
;
1771 struct _bfd_sparc_elf_link_hash_table
*htab
;
1772 struct _bfd_sparc_elf_link_hash_entry
*eh
;
1773 struct _bfd_sparc_elf_dyn_relocs
*p
;
1775 if (h
->root
.type
== bfd_link_hash_indirect
)
1778 if (h
->root
.type
== bfd_link_hash_warning
)
1779 /* When warning symbols are created, they **replace** the "real"
1780 entry in the hash table, thus we never get to see the real
1781 symbol in a hash traversal. So look at it now. */
1782 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1784 info
= (struct bfd_link_info
*) inf
;
1785 htab
= _bfd_sparc_elf_hash_table (info
);
1787 if (htab
->elf
.dynamic_sections_created
1788 && h
->plt
.refcount
> 0)
1790 /* Make sure this symbol is output as a dynamic symbol.
1791 Undefined weak syms won't yet be marked as dynamic. */
1792 if (h
->dynindx
== -1
1793 && !h
->forced_local
)
1795 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1799 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info
->shared
, h
))
1801 asection
*s
= htab
->splt
;
1803 /* The first four entries in .plt is reserved. */
1805 s
->size
= (SPARC_ELF_WORD_BYTES(htab
) == 8 ?
1806 PLT64_HEADER_SIZE
: PLT32_HEADER_SIZE
);
1808 /* The procedure linkage table size is bounded by the magnitude
1809 of the offset we can describe in the entry. */
1810 if (s
->size
>= (SPARC_ELF_WORD_BYTES(htab
) == 8 ?
1811 (((bfd_vma
)1 << 31) << 1) : 0x400000))
1813 bfd_set_error (bfd_error_bad_value
);
1817 if (SPARC_ELF_WORD_BYTES(htab
) == 8
1818 && s
->size
>= PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
)
1820 bfd_vma off
= s
->size
- PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
;
1823 off
= (off
% (160 * PLT64_ENTRY_SIZE
)) / PLT64_ENTRY_SIZE
;
1825 h
->plt
.offset
= (s
->size
- (off
* 8));
1828 h
->plt
.offset
= s
->size
;
1830 /* If this symbol is not defined in a regular file, and we are
1831 not generating a shared library, then set the symbol to this
1832 location in the .plt. This is required to make function
1833 pointers compare as equal between the normal executable and
1834 the shared library. */
1838 h
->root
.u
.def
.section
= s
;
1839 h
->root
.u
.def
.value
= h
->plt
.offset
;
1842 /* Make room for this entry. */
1843 s
->size
+= (SPARC_ELF_WORD_BYTES(htab
) == 8 ?
1844 PLT64_ENTRY_SIZE
: PLT32_ENTRY_SIZE
);
1846 /* We also need to make an entry in the .rela.plt section. */
1847 htab
->srelplt
->size
+= SPARC_ELF_RELA_BYTES (htab
);
1851 h
->plt
.offset
= (bfd_vma
) -1;
1857 h
->plt
.offset
= (bfd_vma
) -1;
1861 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
1862 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
1863 if (h
->got
.refcount
> 0
1866 && _bfd_sparc_elf_hash_entry(h
)->tls_type
== GOT_TLS_IE
)
1867 h
->got
.offset
= (bfd_vma
) -1;
1868 else if (h
->got
.refcount
> 0)
1872 int tls_type
= _bfd_sparc_elf_hash_entry(h
)->tls_type
;
1874 /* Make sure this symbol is output as a dynamic symbol.
1875 Undefined weak syms won't yet be marked as dynamic. */
1876 if (h
->dynindx
== -1
1877 && !h
->forced_local
)
1879 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1884 h
->got
.offset
= s
->size
;
1885 s
->size
+= SPARC_ELF_WORD_BYTES (htab
);
1886 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
1887 if (tls_type
== GOT_TLS_GD
)
1888 s
->size
+= SPARC_ELF_WORD_BYTES (htab
);
1889 dyn
= htab
->elf
.dynamic_sections_created
;
1890 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
1891 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
1893 if ((tls_type
== GOT_TLS_GD
&& h
->dynindx
== -1)
1894 || tls_type
== GOT_TLS_IE
)
1895 htab
->srelgot
->size
+= SPARC_ELF_RELA_BYTES (htab
);
1896 else if (tls_type
== GOT_TLS_GD
)
1897 htab
->srelgot
->size
+= 2 * SPARC_ELF_RELA_BYTES (htab
);
1898 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
))
1899 htab
->srelgot
->size
+= SPARC_ELF_RELA_BYTES (htab
);
1902 h
->got
.offset
= (bfd_vma
) -1;
1904 eh
= (struct _bfd_sparc_elf_link_hash_entry
*) h
;
1905 if (eh
->dyn_relocs
== NULL
)
1908 /* In the shared -Bsymbolic case, discard space allocated for
1909 dynamic pc-relative relocs against symbols which turn out to be
1910 defined in regular objects. For the normal shared case, discard
1911 space for pc-relative relocs that have become local due to symbol
1912 visibility changes. */
1920 struct _bfd_sparc_elf_dyn_relocs
**pp
;
1922 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
1924 p
->count
-= p
->pc_count
;
1935 /* For the non-shared case, discard space for relocs against
1936 symbols which turn out to need copy relocs or are not
1942 || (htab
->elf
.dynamic_sections_created
1943 && (h
->root
.type
== bfd_link_hash_undefweak
1944 || h
->root
.type
== bfd_link_hash_undefined
))))
1946 /* Make sure this symbol is output as a dynamic symbol.
1947 Undefined weak syms won't yet be marked as dynamic. */
1948 if (h
->dynindx
== -1
1949 && !h
->forced_local
)
1951 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1955 /* If that succeeded, we know we'll be keeping all the
1957 if (h
->dynindx
!= -1)
1961 eh
->dyn_relocs
= NULL
;
1966 /* Finally, allocate space. */
1967 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
1969 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
1970 sreloc
->size
+= p
->count
* SPARC_ELF_RELA_BYTES (htab
);
1976 /* Find any dynamic relocs that apply to read-only sections. */
1979 readonly_dynrelocs (struct elf_link_hash_entry
*h
, PTR inf
)
1981 struct _bfd_sparc_elf_link_hash_entry
*eh
;
1982 struct _bfd_sparc_elf_dyn_relocs
*p
;
1984 if (h
->root
.type
== bfd_link_hash_warning
)
1985 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1987 eh
= (struct _bfd_sparc_elf_link_hash_entry
*) h
;
1988 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
1990 asection
*s
= p
->sec
->output_section
;
1992 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
1994 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
1996 info
->flags
|= DF_TEXTREL
;
1998 /* Not an error, just cut short the traversal. */
2005 /* Return true if the dynamic symbol for a given section should be
2006 omitted when creating a shared library. */
2009 _bfd_sparc_elf_omit_section_dynsym (bfd
*output_bfd
,
2010 struct bfd_link_info
*info
,
2013 /* We keep the .got section symbol so that explicit relocations
2014 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2015 can be turned into relocations against the .got symbol. */
2016 if (strcmp (p
->name
, ".got") == 0)
2019 return _bfd_elf_link_omit_section_dynsym (output_bfd
, info
, p
);
2022 /* Set the sizes of the dynamic sections. */
2025 _bfd_sparc_elf_size_dynamic_sections (bfd
*output_bfd
,
2026 struct bfd_link_info
*info
)
2028 struct _bfd_sparc_elf_link_hash_table
*htab
;
2033 htab
= _bfd_sparc_elf_hash_table (info
);
2034 dynobj
= htab
->elf
.dynobj
;
2035 BFD_ASSERT (dynobj
!= NULL
);
2037 if (elf_hash_table (info
)->dynamic_sections_created
)
2039 /* Set the contents of the .interp section to the interpreter. */
2040 if (info
->executable
)
2042 s
= bfd_get_section_by_name (dynobj
, ".interp");
2043 BFD_ASSERT (s
!= NULL
);
2044 s
->size
= htab
->dynamic_interpreter_size
;
2045 s
->contents
= (unsigned char *) htab
->dynamic_interpreter
;
2049 /* Set up .got offsets for local syms, and space for local dynamic
2051 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
2053 bfd_signed_vma
*local_got
;
2054 bfd_signed_vma
*end_local_got
;
2055 char *local_tls_type
;
2056 bfd_size_type locsymcount
;
2057 Elf_Internal_Shdr
*symtab_hdr
;
2060 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2063 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
2065 struct _bfd_sparc_elf_dyn_relocs
*p
;
2067 for (p
= *((struct _bfd_sparc_elf_dyn_relocs
**)
2068 &elf_section_data (s
)->local_dynrel
);
2072 if (!bfd_is_abs_section (p
->sec
)
2073 && bfd_is_abs_section (p
->sec
->output_section
))
2075 /* Input section has been discarded, either because
2076 it is a copy of a linkonce section or due to
2077 linker script /DISCARD/, so we'll be discarding
2080 else if (p
->count
!= 0)
2082 srel
= elf_section_data (p
->sec
)->sreloc
;
2083 srel
->size
+= p
->count
* SPARC_ELF_RELA_BYTES (htab
);
2084 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2085 info
->flags
|= DF_TEXTREL
;
2090 local_got
= elf_local_got_refcounts (ibfd
);
2094 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
2095 locsymcount
= symtab_hdr
->sh_info
;
2096 end_local_got
= local_got
+ locsymcount
;
2097 local_tls_type
= _bfd_sparc_elf_local_got_tls_type (ibfd
);
2099 srel
= htab
->srelgot
;
2100 for (; local_got
< end_local_got
; ++local_got
, ++local_tls_type
)
2104 *local_got
= s
->size
;
2105 s
->size
+= SPARC_ELF_WORD_BYTES (htab
);
2106 if (*local_tls_type
== GOT_TLS_GD
)
2107 s
->size
+= SPARC_ELF_WORD_BYTES (htab
);
2109 || *local_tls_type
== GOT_TLS_GD
2110 || *local_tls_type
== GOT_TLS_IE
)
2111 srel
->size
+= SPARC_ELF_RELA_BYTES (htab
);
2114 *local_got
= (bfd_vma
) -1;
2118 if (htab
->tls_ldm_got
.refcount
> 0)
2120 /* Allocate 2 got entries and 1 dynamic reloc for
2121 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
2122 htab
->tls_ldm_got
.offset
= htab
->sgot
->size
;
2123 htab
->sgot
->size
+= (2 * SPARC_ELF_WORD_BYTES (htab
));
2124 htab
->srelgot
->size
+= SPARC_ELF_RELA_BYTES (htab
);
2127 htab
->tls_ldm_got
.offset
= -1;
2129 /* Allocate global sym .plt and .got entries, and space for global
2130 sym dynamic relocs. */
2131 elf_link_hash_traverse (&htab
->elf
, allocate_dynrelocs
, (PTR
) info
);
2133 if (! ABI_64_P (output_bfd
)
2134 && elf_hash_table (info
)->dynamic_sections_created
)
2136 /* Make space for the trailing nop in .plt. */
2137 if (htab
->splt
->size
> 0)
2138 htab
->splt
->size
+= 1 * SPARC_INSN_BYTES
;
2140 /* If the .got section is more than 0x1000 bytes, we add
2141 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2142 bit relocations have a greater chance of working.
2144 FIXME: Make this optimization work for 64-bit too. */
2145 if (htab
->sgot
->size
>= 0x1000
2146 && elf_hash_table (info
)->hgot
->root
.u
.def
.value
== 0)
2147 elf_hash_table (info
)->hgot
->root
.u
.def
.value
= 0x1000;
2150 /* The check_relocs and adjust_dynamic_symbol entry points have
2151 determined the sizes of the various dynamic sections. Allocate
2153 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
2156 bfd_boolean strip
= FALSE
;
2158 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
2161 /* It's OK to base decisions on the section name, because none
2162 of the dynobj section names depend upon the input files. */
2163 name
= bfd_get_section_name (dynobj
, s
);
2165 if (strncmp (name
, ".rela", 5) == 0)
2169 /* If we don't need this section, strip it from the
2170 output file. This is to handle .rela.bss and
2171 .rel.plt. We must create it in
2172 create_dynamic_sections, because it must be created
2173 before the linker maps input sections to output
2174 sections. The linker does that before
2175 adjust_dynamic_symbol is called, and it is that
2176 function which decides whether anything needs to go
2177 into these sections. */
2182 /* We use the reloc_count field as a counter if we need
2183 to copy relocs into the output file. */
2187 else if (s
!= htab
->splt
&& s
!= htab
->sgot
)
2189 /* It's not one of our sections, so don't allocate space. */
2195 s
->flags
|= SEC_EXCLUDE
;
2199 /* Allocate memory for the section contents. Zero the memory
2200 for the benefit of .rela.plt, which has 4 unused entries
2201 at the beginning, and we don't want garbage. */
2202 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
2203 if (s
->contents
== NULL
&& s
->size
!= 0)
2207 if (elf_hash_table (info
)->dynamic_sections_created
)
2209 /* Add some entries to the .dynamic section. We fill in the
2210 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2211 must add the entries now so that we get the correct size for
2212 the .dynamic section. The DT_DEBUG entry is filled in by the
2213 dynamic linker and used by the debugger. */
2214 #define add_dynamic_entry(TAG, VAL) \
2215 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2217 if (info
->executable
)
2219 if (!add_dynamic_entry (DT_DEBUG
, 0))
2223 if (htab
->srelplt
->size
!= 0)
2225 if (!add_dynamic_entry (DT_PLTGOT
, 0)
2226 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
2227 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
2228 || !add_dynamic_entry (DT_JMPREL
, 0))
2232 if (!add_dynamic_entry (DT_RELA
, 0)
2233 || !add_dynamic_entry (DT_RELASZ
, 0)
2234 || !add_dynamic_entry (DT_RELAENT
,
2235 SPARC_ELF_RELA_BYTES (htab
)))
2238 /* If any dynamic relocs apply to a read-only section,
2239 then we need a DT_TEXTREL entry. */
2240 if ((info
->flags
& DF_TEXTREL
) == 0)
2241 elf_link_hash_traverse (&htab
->elf
, readonly_dynrelocs
,
2244 if (info
->flags
& DF_TEXTREL
)
2246 if (!add_dynamic_entry (DT_TEXTREL
, 0))
2250 if (ABI_64_P (output_bfd
))
2253 struct _bfd_sparc_elf_app_reg
* app_regs
;
2254 struct elf_strtab_hash
*dynstr
;
2255 struct elf_link_hash_table
*eht
= elf_hash_table (info
);
2257 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2258 entries if needed. */
2259 app_regs
= _bfd_sparc_elf_hash_table (info
)->app_regs
;
2260 dynstr
= eht
->dynstr
;
2262 for (reg
= 0; reg
< 4; reg
++)
2263 if (app_regs
[reg
].name
!= NULL
)
2265 struct elf_link_local_dynamic_entry
*entry
, *e
;
2267 if (!add_dynamic_entry (DT_SPARC_REGISTER
, 0))
2270 entry
= (struct elf_link_local_dynamic_entry
*)
2271 bfd_hash_allocate (&info
->hash
->table
, sizeof (*entry
));
2275 /* We cheat here a little bit: the symbol will not be local, so we
2276 put it at the end of the dynlocal linked list. We will fix it
2277 later on, as we have to fix other fields anyway. */
2278 entry
->isym
.st_value
= reg
< 2 ? reg
+ 2 : reg
+ 4;
2279 entry
->isym
.st_size
= 0;
2280 if (*app_regs
[reg
].name
!= '\0')
2282 = _bfd_elf_strtab_add (dynstr
, app_regs
[reg
].name
, FALSE
);
2284 entry
->isym
.st_name
= 0;
2285 entry
->isym
.st_other
= 0;
2286 entry
->isym
.st_info
= ELF_ST_INFO (app_regs
[reg
].bind
,
2288 entry
->isym
.st_shndx
= app_regs
[reg
].shndx
;
2290 entry
->input_bfd
= output_bfd
;
2291 entry
->input_indx
= -1;
2293 if (eht
->dynlocal
== NULL
)
2294 eht
->dynlocal
= entry
;
2297 for (e
= eht
->dynlocal
; e
->next
; e
= e
->next
)
2305 #undef add_dynamic_entry
2311 _bfd_sparc_elf_new_section_hook (bfd
*abfd
, asection
*sec
)
2313 struct _bfd_sparc_elf_section_data
*sdata
;
2314 bfd_size_type amt
= sizeof (*sdata
);
2316 sdata
= (struct _bfd_sparc_elf_section_data
*) bfd_zalloc (abfd
, amt
);
2319 sec
->used_by_bfd
= (PTR
) sdata
;
2321 return _bfd_elf_new_section_hook (abfd
, sec
);
2325 _bfd_sparc_elf_relax_section (bfd
*abfd ATTRIBUTE_UNUSED
,
2326 struct bfd_section
*section
,
2327 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
,
2331 sec_do_relax (section
) = 1;
2335 /* Return the base VMA address which should be subtracted from real addresses
2336 when resolving @dtpoff relocation.
2337 This is PT_TLS segment p_vaddr. */
2340 dtpoff_base (struct bfd_link_info
*info
)
2342 /* If tls_sec is NULL, we should have signalled an error already. */
2343 if (elf_hash_table (info
)->tls_sec
== NULL
)
2345 return elf_hash_table (info
)->tls_sec
->vma
;
2348 /* Return the relocation value for @tpoff relocation
2349 if STT_TLS virtual address is ADDRESS. */
2352 tpoff (struct bfd_link_info
*info
, bfd_vma address
)
2354 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
2356 /* If tls_sec is NULL, we should have signalled an error already. */
2357 if (htab
->tls_sec
== NULL
)
2359 return address
- htab
->tls_size
- htab
->tls_sec
->vma
;
2362 /* Relocate a SPARC ELF section. */
2365 _bfd_sparc_elf_relocate_section (bfd
*output_bfd
, struct bfd_link_info
*info
,
2366 bfd
*input_bfd
, asection
*input_section
,
2367 bfd_byte
*contents
, Elf_Internal_Rela
*relocs
,
2368 Elf_Internal_Sym
*local_syms
, asection
**local_sections
)
2370 struct _bfd_sparc_elf_link_hash_table
*htab
;
2371 Elf_Internal_Shdr
*symtab_hdr
;
2372 struct elf_link_hash_entry
**sym_hashes
;
2373 bfd_vma
*local_got_offsets
;
2376 Elf_Internal_Rela
*rel
;
2377 Elf_Internal_Rela
*relend
;
2380 if (info
->relocatable
)
2383 htab
= _bfd_sparc_elf_hash_table (info
);
2384 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2385 sym_hashes
= elf_sym_hashes (input_bfd
);
2386 local_got_offsets
= elf_local_got_offsets (input_bfd
);
2388 if (elf_hash_table (info
)->hgot
== NULL
)
2391 got_base
= elf_hash_table (info
)->hgot
->root
.u
.def
.value
;
2393 sreloc
= elf_section_data (input_section
)->sreloc
;
2396 if (ABI_64_P (output_bfd
))
2397 num_relocs
= NUM_SHDR_ENTRIES (& elf_section_data (input_section
)->rel_hdr
);
2399 num_relocs
= input_section
->reloc_count
;
2400 relend
= relocs
+ num_relocs
;
2401 for (; rel
< relend
; rel
++)
2403 int r_type
, tls_type
;
2404 reloc_howto_type
*howto
;
2405 unsigned long r_symndx
;
2406 struct elf_link_hash_entry
*h
;
2407 Elf_Internal_Sym
*sym
;
2409 bfd_vma relocation
, off
;
2410 bfd_reloc_status_type r
;
2411 bfd_boolean is_plt
= FALSE
;
2412 bfd_boolean unresolved_reloc
;
2414 r_type
= SPARC_ELF_R_TYPE (rel
->r_info
);
2415 if (r_type
== R_SPARC_GNU_VTINHERIT
2416 || r_type
== R_SPARC_GNU_VTENTRY
)
2419 if (r_type
< 0 || r_type
>= (int) R_SPARC_max_std
)
2421 bfd_set_error (bfd_error_bad_value
);
2424 howto
= _bfd_sparc_elf_howto_table
+ r_type
;
2426 /* This is a final link. */
2427 r_symndx
= SPARC_ELF_R_SYMNDX (htab
, rel
->r_info
);
2431 unresolved_reloc
= FALSE
;
2432 if (r_symndx
< symtab_hdr
->sh_info
)
2434 sym
= local_syms
+ r_symndx
;
2435 sec
= local_sections
[r_symndx
];
2436 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
2442 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
2443 r_symndx
, symtab_hdr
, sym_hashes
,
2445 unresolved_reloc
, warned
);
2448 /* To avoid generating warning messages about truncated
2449 relocations, set the relocation's address to be the same as
2450 the start of this section. */
2451 if (input_section
->output_section
!= NULL
)
2452 relocation
= input_section
->output_section
->vma
;
2463 /* Relocation is to the entry for this symbol in the global
2465 if (htab
->sgot
== NULL
)
2472 off
= h
->got
.offset
;
2473 BFD_ASSERT (off
!= (bfd_vma
) -1);
2474 dyn
= elf_hash_table (info
)->dynamic_sections_created
;
2476 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
)
2483 /* This is actually a static link, or it is a
2484 -Bsymbolic link and the symbol is defined
2485 locally, or the symbol was forced to be local
2486 because of a version file. We must initialize
2487 this entry in the global offset table. Since the
2488 offset must always be a multiple of 8 for 64-bit
2489 and 4 for 32-bit, we use the least significant bit
2490 to record whether we have initialized it already.
2492 When doing a dynamic link, we create a .rela.got
2493 relocation entry to initialize the value. This
2494 is done in the finish_dynamic_symbol routine. */
2499 SPARC_ELF_PUT_WORD (htab
, output_bfd
, relocation
,
2500 htab
->sgot
->contents
+ off
);
2505 unresolved_reloc
= FALSE
;
2509 BFD_ASSERT (local_got_offsets
!= NULL
2510 && local_got_offsets
[r_symndx
] != (bfd_vma
) -1);
2512 off
= local_got_offsets
[r_symndx
];
2514 /* The offset must always be a multiple of 8 on 64-bit and
2515 4 on 32-bit. We use the least significant bit to record
2516 whether we have already processed this entry. */
2525 Elf_Internal_Rela outrel
;
2527 /* We need to generate a R_SPARC_RELATIVE reloc
2528 for the dynamic linker. */
2530 BFD_ASSERT (s
!= NULL
);
2532 outrel
.r_offset
= (htab
->sgot
->output_section
->vma
2533 + htab
->sgot
->output_offset
2535 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
,
2536 0, R_SPARC_RELATIVE
);
2537 outrel
.r_addend
= relocation
;
2539 SPARC_ELF_APPEND_RELA (htab
, output_bfd
, s
, &outrel
);
2542 SPARC_ELF_PUT_WORD (htab
, output_bfd
, relocation
,
2543 htab
->sgot
->contents
+ off
);
2544 local_got_offsets
[r_symndx
] |= 1;
2547 relocation
= htab
->sgot
->output_offset
+ off
- got_base
;
2552 if (h
== NULL
|| h
->plt
.offset
== (bfd_vma
) -1)
2554 r_type
= (r_type
== R_SPARC_PLT32
) ? R_SPARC_32
: R_SPARC_64
;
2559 case R_SPARC_WPLT30
:
2560 case R_SPARC_HIPLT22
:
2561 case R_SPARC_LOPLT10
:
2562 case R_SPARC_PCPLT32
:
2563 case R_SPARC_PCPLT22
:
2564 case R_SPARC_PCPLT10
:
2566 /* Relocation is to the entry for this symbol in the
2567 procedure linkage table. */
2569 if (! ABI_64_P (output_bfd
))
2571 /* The Solaris native assembler will generate a WPLT30 reloc
2572 for a local symbol if you assemble a call from one
2573 section to another when using -K pic. We treat it as
2580 BFD_ASSERT (h
!= NULL
);
2583 if (h
->plt
.offset
== (bfd_vma
) -1 || htab
->splt
== NULL
)
2585 /* We didn't make a PLT entry for this symbol. This
2586 happens when statically linking PIC code, or when
2587 using -Bsymbolic. */
2591 relocation
= (htab
->splt
->output_section
->vma
2592 + htab
->splt
->output_offset
2594 unresolved_reloc
= FALSE
;
2595 if (r_type
== R_SPARC_PLT32
|| r_type
== R_SPARC_PLT64
)
2597 r_type
= r_type
== R_SPARC_PLT32
? R_SPARC_32
: R_SPARC_64
;
2605 case R_SPARC_PC_HH22
:
2606 case R_SPARC_PC_HM10
:
2607 case R_SPARC_PC_LM22
:
2609 && strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
2613 case R_SPARC_DISP16
:
2614 case R_SPARC_DISP32
:
2615 case R_SPARC_DISP64
:
2616 case R_SPARC_WDISP30
:
2617 case R_SPARC_WDISP22
:
2618 case R_SPARC_WDISP19
:
2619 case R_SPARC_WDISP16
:
2646 /* r_symndx will be zero only for relocs against symbols
2647 from removed linkonce sections, or sections discarded by
2650 || (input_section
->flags
& SEC_ALLOC
) == 0)
2655 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2656 || h
->root
.type
!= bfd_link_hash_undefweak
)
2657 && (! howto
->pc_relative
2660 && (! info
->symbolic
2661 || !h
->def_regular
))))
2668 || h
->root
.type
== bfd_link_hash_undefweak
2669 || h
->root
.type
== bfd_link_hash_undefined
)))
2671 Elf_Internal_Rela outrel
;
2672 bfd_boolean skip
, relocate
= FALSE
;
2674 /* When generating a shared object, these relocations
2675 are copied into the output file to be resolved at run
2678 BFD_ASSERT (sreloc
!= NULL
);
2683 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
2685 if (outrel
.r_offset
== (bfd_vma
) -1)
2687 else if (outrel
.r_offset
== (bfd_vma
) -2)
2688 skip
= TRUE
, relocate
= TRUE
;
2689 outrel
.r_offset
+= (input_section
->output_section
->vma
2690 + input_section
->output_offset
);
2692 /* Optimize unaligned reloc usage now that we know where
2693 it finally resides. */
2697 if (outrel
.r_offset
& 1)
2698 r_type
= R_SPARC_UA16
;
2701 if (!(outrel
.r_offset
& 1))
2702 r_type
= R_SPARC_16
;
2705 if (outrel
.r_offset
& 3)
2706 r_type
= R_SPARC_UA32
;
2709 if (!(outrel
.r_offset
& 3))
2710 r_type
= R_SPARC_32
;
2713 if (outrel
.r_offset
& 7)
2714 r_type
= R_SPARC_UA64
;
2717 if (!(outrel
.r_offset
& 7))
2718 r_type
= R_SPARC_64
;
2721 case R_SPARC_DISP16
:
2722 case R_SPARC_DISP32
:
2723 case R_SPARC_DISP64
:
2724 /* If the symbol is not dynamic, we should not keep
2725 a dynamic relocation. But an .rela.* slot has been
2726 allocated for it, output R_SPARC_NONE.
2727 FIXME: Add code tracking needed dynamic relocs as
2729 if (h
->dynindx
== -1)
2730 skip
= TRUE
, relocate
= TRUE
;
2735 memset (&outrel
, 0, sizeof outrel
);
2736 /* h->dynindx may be -1 if the symbol was marked to
2738 else if (h
!= NULL
&& ! is_plt
2739 && ((! info
->symbolic
&& h
->dynindx
!= -1)
2740 || !h
->def_regular
))
2742 BFD_ASSERT (h
->dynindx
!= -1);
2743 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, rel
, h
->dynindx
, r_type
);
2744 outrel
.r_addend
= rel
->r_addend
;
2748 if (r_type
== R_SPARC_32
|| r_type
== R_SPARC_64
)
2750 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
,
2751 0, R_SPARC_RELATIVE
);
2752 outrel
.r_addend
= relocation
+ rel
->r_addend
;
2761 if (bfd_is_abs_section (sec
))
2763 else if (sec
== NULL
|| sec
->owner
== NULL
)
2765 bfd_set_error (bfd_error_bad_value
);
2772 osec
= sec
->output_section
;
2773 indx
= elf_section_data (osec
)->dynindx
;
2775 /* FIXME: we really should be able to link non-pic
2776 shared libraries. */
2780 (*_bfd_error_handler
)
2781 (_("%B: probably compiled without -fPIC?"),
2783 bfd_set_error (bfd_error_bad_value
);
2788 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, rel
, indx
, r_type
);
2789 outrel
.r_addend
= relocation
+ rel
->r_addend
;
2793 SPARC_ELF_APPEND_RELA (htab
, output_bfd
, sreloc
, &outrel
);
2795 /* This reloc will be computed at runtime, so there's no
2796 need to do anything now. */
2802 case R_SPARC_TLS_GD_HI22
:
2803 if (! ABI_64_P (input_bfd
)
2804 && ! _bfd_sparc_elf_tdata (input_bfd
)->has_tlsgd
)
2806 /* R_SPARC_REV32 used the same reloc number as
2807 R_SPARC_TLS_GD_HI22. */
2808 r_type
= R_SPARC_REV32
;
2813 case R_SPARC_TLS_GD_LO10
:
2814 case R_SPARC_TLS_IE_HI22
:
2815 case R_SPARC_TLS_IE_LO10
:
2816 r_type
= sparc_elf_tls_transition (info
, input_bfd
, r_type
, h
== NULL
);
2817 tls_type
= GOT_UNKNOWN
;
2818 if (h
== NULL
&& local_got_offsets
)
2819 tls_type
= _bfd_sparc_elf_local_got_tls_type (input_bfd
) [r_symndx
];
2822 tls_type
= _bfd_sparc_elf_hash_entry(h
)->tls_type
;
2823 if (!info
->shared
&& h
->dynindx
== -1 && tls_type
== GOT_TLS_IE
)
2824 switch (SPARC_ELF_R_TYPE (rel
->r_info
))
2826 case R_SPARC_TLS_GD_HI22
:
2827 case R_SPARC_TLS_IE_HI22
:
2828 r_type
= R_SPARC_TLS_LE_HIX22
;
2831 r_type
= R_SPARC_TLS_LE_LOX10
;
2835 if (tls_type
== GOT_TLS_IE
)
2838 case R_SPARC_TLS_GD_HI22
:
2839 r_type
= R_SPARC_TLS_IE_HI22
;
2841 case R_SPARC_TLS_GD_LO10
:
2842 r_type
= R_SPARC_TLS_IE_LO10
;
2846 if (r_type
== R_SPARC_TLS_LE_HIX22
)
2848 relocation
= tpoff (info
, relocation
);
2851 if (r_type
== R_SPARC_TLS_LE_LOX10
)
2853 /* Change add into xor. */
2854 relocation
= tpoff (info
, relocation
);
2855 bfd_put_32 (output_bfd
, (bfd_get_32 (input_bfd
,
2856 contents
+ rel
->r_offset
)
2857 | 0x80182000), contents
+ rel
->r_offset
);
2863 off
= h
->got
.offset
;
2868 BFD_ASSERT (local_got_offsets
!= NULL
);
2869 off
= local_got_offsets
[r_symndx
];
2870 local_got_offsets
[r_symndx
] |= 1;
2874 if (htab
->sgot
== NULL
)
2881 Elf_Internal_Rela outrel
;
2884 if (htab
->srelgot
== NULL
)
2887 SPARC_ELF_PUT_WORD (htab
, output_bfd
, 0, htab
->sgot
->contents
+ off
);
2888 outrel
.r_offset
= (htab
->sgot
->output_section
->vma
2889 + htab
->sgot
->output_offset
+ off
);
2890 indx
= h
&& h
->dynindx
!= -1 ? h
->dynindx
: 0;
2891 if (r_type
== R_SPARC_TLS_IE_HI22
2892 || r_type
== R_SPARC_TLS_IE_LO10
)
2893 dr_type
= SPARC_ELF_TPOFF_RELOC (htab
);
2895 dr_type
= SPARC_ELF_DTPMOD_RELOC (htab
);
2896 if (dr_type
== SPARC_ELF_TPOFF_RELOC (htab
) && indx
== 0)
2897 outrel
.r_addend
= relocation
- dtpoff_base (info
);
2899 outrel
.r_addend
= 0;
2900 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, indx
, dr_type
);
2901 SPARC_ELF_APPEND_RELA (htab
, output_bfd
, htab
->srelgot
, &outrel
);
2903 if (r_type
== R_SPARC_TLS_GD_HI22
2904 || r_type
== R_SPARC_TLS_GD_LO10
)
2908 BFD_ASSERT (! unresolved_reloc
);
2909 SPARC_ELF_PUT_WORD (htab
, output_bfd
,
2910 relocation
- dtpoff_base (info
),
2911 (htab
->sgot
->contents
+ off
2912 + SPARC_ELF_WORD_BYTES (htab
)));
2916 SPARC_ELF_PUT_WORD (htab
, output_bfd
, 0,
2917 (htab
->sgot
->contents
+ off
2918 + SPARC_ELF_WORD_BYTES (htab
)));
2919 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, indx
,
2920 SPARC_ELF_DTPOFF_RELOC (htab
));
2921 outrel
.r_offset
+= SPARC_ELF_WORD_BYTES (htab
);
2922 SPARC_ELF_APPEND_RELA (htab
, output_bfd
, htab
->srelgot
, &outrel
);
2925 else if (dr_type
== SPARC_ELF_DTPMOD_RELOC (htab
))
2927 SPARC_ELF_PUT_WORD (htab
, output_bfd
, 0,
2928 (htab
->sgot
->contents
+ off
2929 + SPARC_ELF_WORD_BYTES (htab
)));
2933 if (off
>= (bfd_vma
) -2)
2936 relocation
= htab
->sgot
->output_offset
+ off
- got_base
;
2937 unresolved_reloc
= FALSE
;
2938 howto
= _bfd_sparc_elf_howto_table
+ r_type
;
2941 case R_SPARC_TLS_LDM_HI22
:
2942 case R_SPARC_TLS_LDM_LO10
:
2945 bfd_put_32 (output_bfd
, SPARC_NOP
, contents
+ rel
->r_offset
);
2948 off
= htab
->tls_ldm_got
.offset
;
2949 htab
->tls_ldm_got
.offset
|= 1;
2950 goto r_sparc_tlsldm
;
2952 case R_SPARC_TLS_LDO_HIX22
:
2953 case R_SPARC_TLS_LDO_LOX10
:
2956 relocation
-= dtpoff_base (info
);
2960 r_type
= (r_type
== R_SPARC_TLS_LDO_HIX22
2961 ? R_SPARC_TLS_LE_HIX22
: R_SPARC_TLS_LE_LOX10
);
2964 case R_SPARC_TLS_LE_HIX22
:
2965 case R_SPARC_TLS_LE_LOX10
:
2968 Elf_Internal_Rela outrel
;
2969 bfd_boolean skip
, relocate
= FALSE
;
2971 BFD_ASSERT (sreloc
!= NULL
);
2974 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
2976 if (outrel
.r_offset
== (bfd_vma
) -1)
2978 else if (outrel
.r_offset
== (bfd_vma
) -2)
2979 skip
= TRUE
, relocate
= TRUE
;
2980 outrel
.r_offset
+= (input_section
->output_section
->vma
2981 + input_section
->output_offset
);
2983 memset (&outrel
, 0, sizeof outrel
);
2986 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, 0, r_type
);
2987 outrel
.r_addend
= relocation
- dtpoff_base (info
)
2991 SPARC_ELF_APPEND_RELA (htab
, output_bfd
, sreloc
, &outrel
);
2994 relocation
= tpoff (info
, relocation
);
2997 case R_SPARC_TLS_LDM_CALL
:
3001 bfd_put_32 (output_bfd
, 0x90100000, contents
+ rel
->r_offset
);
3006 case R_SPARC_TLS_GD_CALL
:
3007 tls_type
= GOT_UNKNOWN
;
3008 if (h
== NULL
&& local_got_offsets
)
3009 tls_type
= _bfd_sparc_elf_local_got_tls_type (input_bfd
) [r_symndx
];
3011 tls_type
= _bfd_sparc_elf_hash_entry(h
)->tls_type
;
3013 || (r_type
== R_SPARC_TLS_GD_CALL
&& tls_type
== GOT_TLS_IE
))
3017 if (!info
->shared
&& (h
== NULL
|| h
->dynindx
== -1))
3020 bfd_put_32 (output_bfd
, SPARC_NOP
, contents
+ rel
->r_offset
);
3025 if (rel
+ 1 < relend
3026 && SPARC_ELF_R_TYPE (rel
[1].r_info
) == R_SPARC_TLS_GD_ADD
3027 && rel
[1].r_offset
== rel
->r_offset
+ 4
3028 && SPARC_ELF_R_SYMNDX (htab
, rel
[1].r_info
) == r_symndx
3029 && (((insn
= bfd_get_32 (input_bfd
,
3030 contents
+ rel
[1].r_offset
))
3031 >> 25) & 0x1f) == 8)
3034 call __tls_get_addr, %tgd_call(foo)
3035 add %reg1, %reg2, %o0, %tgd_add(foo)
3036 and change it into IE:
3037 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3038 add %g7, %o0, %o0, %tie_add(foo).
3039 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3040 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3041 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3042 bfd_put_32 (output_bfd
, insn
| (ABI_64_P (output_bfd
) ? 0xc0580000 : 0xc0000000),
3043 contents
+ rel
->r_offset
);
3044 bfd_put_32 (output_bfd
, 0x9001c008,
3045 contents
+ rel
->r_offset
+ 4);
3050 bfd_put_32 (output_bfd
, 0x9001c008, contents
+ rel
->r_offset
);
3054 h
= (struct elf_link_hash_entry
*)
3055 bfd_link_hash_lookup (info
->hash
, "__tls_get_addr", FALSE
,
3057 BFD_ASSERT (h
!= NULL
);
3058 r_type
= R_SPARC_WPLT30
;
3059 howto
= _bfd_sparc_elf_howto_table
+ r_type
;
3060 goto r_sparc_wplt30
;
3062 case R_SPARC_TLS_GD_ADD
:
3063 tls_type
= GOT_UNKNOWN
;
3064 if (h
== NULL
&& local_got_offsets
)
3065 tls_type
= _bfd_sparc_elf_local_got_tls_type (input_bfd
) [r_symndx
];
3067 tls_type
= _bfd_sparc_elf_hash_entry(h
)->tls_type
;
3068 if (! info
->shared
|| tls_type
== GOT_TLS_IE
)
3070 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3072 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3074 add %g7, %reg2, %reg3. */
3075 bfd_vma insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3076 if ((h
!= NULL
&& h
->dynindx
!= -1) || info
->shared
)
3077 relocation
= insn
| (ABI_64_P (output_bfd
) ? 0xc0580000 : 0xc0000000);
3079 relocation
= (insn
& ~0x7c000) | 0x1c000;
3080 bfd_put_32 (output_bfd
, relocation
, contents
+ rel
->r_offset
);
3084 case R_SPARC_TLS_LDM_ADD
:
3086 bfd_put_32 (output_bfd
, SPARC_NOP
, contents
+ rel
->r_offset
);
3089 case R_SPARC_TLS_LDO_ADD
:
3092 /* Change rs1 into %g7. */
3093 bfd_vma insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3094 insn
= (insn
& ~0x7c000) | 0x1c000;
3095 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
3099 case R_SPARC_TLS_IE_LD
:
3100 case R_SPARC_TLS_IE_LDX
:
3101 if (! info
->shared
&& (h
== NULL
|| h
->dynindx
== -1))
3103 bfd_vma insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3104 int rs2
= insn
& 0x1f;
3105 int rd
= (insn
>> 25) & 0x1f;
3108 relocation
= SPARC_NOP
;
3110 relocation
= 0x80100000 | (insn
& 0x3e00001f);
3111 bfd_put_32 (output_bfd
, relocation
, contents
+ rel
->r_offset
);
3115 case R_SPARC_TLS_IE_ADD
:
3116 /* Totally useless relocation. */
3119 case R_SPARC_TLS_DTPOFF32
:
3120 case R_SPARC_TLS_DTPOFF64
:
3121 relocation
-= dtpoff_base (info
);
3128 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3129 because such sections are not SEC_ALLOC and thus ld.so will
3130 not process them. */
3131 if (unresolved_reloc
3132 && !((input_section
->flags
& SEC_DEBUGGING
) != 0
3134 (*_bfd_error_handler
)
3135 (_("%B(%A+0x%lx): unresolvable relocation against symbol `%s'"),
3138 (long) rel
->r_offset
,
3139 h
->root
.root
.string
);
3141 r
= bfd_reloc_continue
;
3142 if (r_type
== R_SPARC_OLO10
)
3146 if (! ABI_64_P (output_bfd
))
3149 relocation
+= rel
->r_addend
;
3150 relocation
= (relocation
& 0x3ff) + ELF64_R_TYPE_DATA (rel
->r_info
);
3152 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3153 x
= (x
& ~(bfd_vma
) 0x1fff) | (relocation
& 0x1fff);
3154 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3156 r
= bfd_check_overflow (howto
->complain_on_overflow
,
3157 howto
->bitsize
, howto
->rightshift
,
3158 bfd_arch_bits_per_address (input_bfd
),
3161 else if (r_type
== R_SPARC_WDISP16
)
3165 relocation
+= rel
->r_addend
;
3166 relocation
-= (input_section
->output_section
->vma
3167 + input_section
->output_offset
);
3168 relocation
-= rel
->r_offset
;
3170 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3171 x
|= ((((relocation
>> 2) & 0xc000) << 6)
3172 | ((relocation
>> 2) & 0x3fff));
3173 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3175 r
= bfd_check_overflow (howto
->complain_on_overflow
,
3176 howto
->bitsize
, howto
->rightshift
,
3177 bfd_arch_bits_per_address (input_bfd
),
3180 else if (r_type
== R_SPARC_REV32
)
3184 relocation
= relocation
+ rel
->r_addend
;
3186 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3188 bfd_putl32 (/*input_bfd,*/ x
, contents
+ rel
->r_offset
);
3191 else if (r_type
== R_SPARC_TLS_LDO_HIX22
3192 || r_type
== R_SPARC_TLS_LE_HIX22
)
3196 relocation
+= rel
->r_addend
;
3197 if (r_type
== R_SPARC_TLS_LE_HIX22
)
3198 relocation
^= MINUS_ONE
;
3200 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3201 x
= (x
& ~(bfd_vma
) 0x3fffff) | ((relocation
>> 10) & 0x3fffff);
3202 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3205 else if (r_type
== R_SPARC_TLS_LDO_LOX10
3206 || r_type
== R_SPARC_TLS_LE_LOX10
)
3210 relocation
+= rel
->r_addend
;
3211 relocation
&= 0x3ff;
3212 if (r_type
== R_SPARC_TLS_LE_LOX10
)
3213 relocation
|= 0x1c00;
3215 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3216 x
= (x
& ~(bfd_vma
) 0x1fff) | relocation
;
3217 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3221 else if (r_type
== R_SPARC_HIX22
)
3225 relocation
+= rel
->r_addend
;
3226 relocation
= relocation
^ MINUS_ONE
;
3228 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3229 x
= (x
& ~(bfd_vma
) 0x3fffff) | ((relocation
>> 10) & 0x3fffff);
3230 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3232 r
= bfd_check_overflow (howto
->complain_on_overflow
,
3233 howto
->bitsize
, howto
->rightshift
,
3234 bfd_arch_bits_per_address (input_bfd
),
3237 else if (r_type
== R_SPARC_LOX10
)
3241 relocation
+= rel
->r_addend
;
3242 relocation
= (relocation
& 0x3ff) | 0x1c00;
3244 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3245 x
= (x
& ~(bfd_vma
) 0x1fff) | relocation
;
3246 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3250 else if ((r_type
== R_SPARC_WDISP30
|| r_type
== R_SPARC_WPLT30
)
3251 && sec_do_relax (input_section
)
3252 && rel
->r_offset
+ 4 < input_section
->size
)
3256 #define XCC (2 << 20)
3257 #define COND(x) (((x)&0xf)<<25)
3258 #define CONDA COND(0x8)
3259 #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
3260 #define INSN_BA (F2(0,2) | CONDA)
3261 #define INSN_OR F3(2, 0x2, 0)
3262 #define INSN_NOP F2(0,4)
3266 /* If the instruction is a call with either:
3268 arithmetic instruction with rd == %o7
3269 where rs1 != %o7 and rs2 if it is register != %o7
3270 then we can optimize if the call destination is near
3271 by changing the call into a branch always. */
3272 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3273 y
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
+ 4);
3274 if ((x
& OP(~0)) == OP(1) && (y
& OP(~0)) == OP(2))
3276 if (((y
& OP3(~0)) == OP3(0x3d) /* restore */
3277 || ((y
& OP3(0x28)) == 0 /* arithmetic */
3278 && (y
& RD(~0)) == RD(O7
)))
3279 && (y
& RS1(~0)) != RS1(O7
)
3281 || (y
& RS2(~0)) != RS2(O7
)))
3285 reloc
= relocation
+ rel
->r_addend
- rel
->r_offset
;
3286 reloc
-= (input_section
->output_section
->vma
3287 + input_section
->output_offset
);
3289 /* Ensure the branch fits into simm22. */
3290 if ((reloc
& 3) == 0
3291 && ((reloc
& ~(bfd_vma
)0x7fffff) == 0
3292 || ((reloc
| 0x7fffff) == ~(bfd_vma
)0)))
3296 /* Check whether it fits into simm19. */
3297 if (((reloc
& 0x3c0000) == 0
3298 || (reloc
& 0x3c0000) == 0x3c0000)
3299 && (ABI_64_P (output_bfd
)
3300 || elf_elfheader (output_bfd
)->e_flags
& EF_SPARC_32PLUS
))
3301 x
= INSN_BPA
| (reloc
& 0x7ffff); /* ba,pt %xcc */
3303 x
= INSN_BA
| (reloc
& 0x3fffff); /* ba */
3304 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3306 if (rel
->r_offset
>= 4
3307 && (y
& (0xffffffff ^ RS1(~0)))
3308 == (INSN_OR
| RD(O7
) | RS2(G0
)))
3313 z
= bfd_get_32 (input_bfd
,
3314 contents
+ rel
->r_offset
- 4);
3315 if ((z
& (0xffffffff ^ RD(~0)))
3316 != (INSN_OR
| RS1(O7
) | RS2(G0
)))
3324 If call foo was replaced with ba, replace
3325 or %rN, %g0, %o7 with nop. */
3327 reg
= (y
& RS1(~0)) >> 14;
3328 if (reg
!= ((z
& RD(~0)) >> 25)
3329 || reg
== G0
|| reg
== O7
)
3332 bfd_put_32 (input_bfd
, (bfd_vma
) INSN_NOP
,
3333 contents
+ rel
->r_offset
+ 4);
3341 if (r
== bfd_reloc_continue
)
3342 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
3343 contents
, rel
->r_offset
,
3344 relocation
, rel
->r_addend
);
3346 if (r
!= bfd_reloc_ok
)
3351 case bfd_reloc_outofrange
:
3353 case bfd_reloc_overflow
:
3361 name
= bfd_elf_string_from_elf_section (input_bfd
,
3362 symtab_hdr
->sh_link
,
3367 name
= bfd_section_name (input_bfd
, sec
);
3369 if (! ((*info
->callbacks
->reloc_overflow
)
3370 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
3371 (bfd_vma
) 0, input_bfd
, input_section
,
3383 /* Finish up dynamic symbol handling. We set the contents of various
3384 dynamic sections here. */
3387 _bfd_sparc_elf_finish_dynamic_symbol (bfd
*output_bfd
,
3388 struct bfd_link_info
*info
,
3389 struct elf_link_hash_entry
*h
,
3390 Elf_Internal_Sym
*sym
)
3393 struct _bfd_sparc_elf_link_hash_table
*htab
;
3395 htab
= _bfd_sparc_elf_hash_table (info
);
3396 dynobj
= htab
->elf
.dynobj
;
3398 if (h
->plt
.offset
!= (bfd_vma
) -1)
3402 Elf_Internal_Rela rela
;
3407 /* This symbol has an entry in the PLT. Set it up. */
3409 BFD_ASSERT (h
->dynindx
!= -1);
3412 srela
= htab
->srelplt
;
3413 BFD_ASSERT (splt
!= NULL
&& srela
!= NULL
);
3415 /* Fill in the entry in the procedure linkage table. */
3416 rela_index
= SPARC_ELF_BUILD_PLT_ENTRY (htab
, output_bfd
, splt
,
3417 h
->plt
.offset
, splt
->size
,
3420 /* Fill in the entry in the .rela.plt section. */
3421 rela
.r_offset
= r_offset
3422 + (splt
->output_section
->vma
+ splt
->output_offset
);
3423 if (! ABI_64_P (output_bfd
)
3424 || h
->plt
.offset
< (PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
))
3430 rela
.r_addend
= -(h
->plt
.offset
+ 4)
3431 -(splt
->output_section
->vma
+ splt
->output_offset
);
3433 rela
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, h
->dynindx
, R_SPARC_JMP_SLOT
);
3435 /* Adjust for the first 4 reserved elements in the .plt section
3436 when setting the offset in the .rela.plt section.
3437 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
3438 thus .plt[4] has corresponding .rela.plt[0] and so on. */
3440 loc
= srela
->contents
;
3442 if (ABI_64_P (output_bfd
))
3444 loc
+= rela_index
* sizeof (Elf64_External_Rela
);
3445 bfd_elf64_swap_reloca_out (output_bfd
, &rela
, loc
);
3450 loc
+= rela_index
* sizeof (Elf32_External_Rela
);
3451 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3454 if (!h
->def_regular
)
3456 /* Mark the symbol as undefined, rather than as defined in
3457 the .plt section. Leave the value alone. */
3458 sym
->st_shndx
= SHN_UNDEF
;
3459 /* If the symbol is weak, we do need to clear the value.
3460 Otherwise, the PLT entry would provide a definition for
3461 the symbol even if the symbol wasn't defined anywhere,
3462 and so the symbol would never be NULL. */
3463 if (!h
->ref_regular_nonweak
)
3468 if (h
->got
.offset
!= (bfd_vma
) -1
3469 && _bfd_sparc_elf_hash_entry(h
)->tls_type
!= GOT_TLS_GD
3470 && _bfd_sparc_elf_hash_entry(h
)->tls_type
!= GOT_TLS_IE
)
3474 Elf_Internal_Rela rela
;
3476 /* This symbol has an entry in the GOT. Set it up. */
3479 srela
= htab
->srelgot
;
3480 BFD_ASSERT (sgot
!= NULL
&& srela
!= NULL
);
3482 rela
.r_offset
= (sgot
->output_section
->vma
3483 + sgot
->output_offset
3484 + (h
->got
.offset
&~ (bfd_vma
) 1));
3486 /* If this is a -Bsymbolic link, and the symbol is defined
3487 locally, we just want to emit a RELATIVE reloc. Likewise if
3488 the symbol was forced to be local because of a version file.
3489 The entry in the global offset table will already have been
3490 initialized in the relocate_section function. */
3492 && (info
->symbolic
|| h
->dynindx
== -1)
3495 asection
*sec
= h
->root
.u
.def
.section
;
3496 rela
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, 0, R_SPARC_RELATIVE
);
3497 rela
.r_addend
= (h
->root
.u
.def
.value
3498 + sec
->output_section
->vma
3499 + sec
->output_offset
);
3503 rela
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, h
->dynindx
, R_SPARC_GLOB_DAT
);
3507 SPARC_ELF_PUT_WORD (htab
, output_bfd
, 0,
3508 sgot
->contents
+ (h
->got
.offset
& ~(bfd_vma
) 1));
3509 SPARC_ELF_APPEND_RELA (htab
, output_bfd
, srela
, &rela
);
3515 Elf_Internal_Rela rela
;
3517 /* This symbols needs a copy reloc. Set it up. */
3518 BFD_ASSERT (h
->dynindx
!= -1);
3520 s
= bfd_get_section_by_name (h
->root
.u
.def
.section
->owner
,
3522 BFD_ASSERT (s
!= NULL
);
3524 rela
.r_offset
= (h
->root
.u
.def
.value
3525 + h
->root
.u
.def
.section
->output_section
->vma
3526 + h
->root
.u
.def
.section
->output_offset
);
3527 rela
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, h
->dynindx
, R_SPARC_COPY
);
3529 SPARC_ELF_APPEND_RELA (htab
, output_bfd
, s
, &rela
);
3532 /* Mark some specially defined symbols as absolute. */
3533 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
3534 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0
3535 || strcmp (h
->root
.root
.string
, "_PROCEDURE_LINKAGE_TABLE_") == 0)
3536 sym
->st_shndx
= SHN_ABS
;
3541 /* Finish up the dynamic sections. */
3545 sparc64_finish_dyn (bfd
*output_bfd
, struct bfd_link_info
*info
,
3546 bfd
*dynobj
, asection
*sdyn
,
3547 asection
*splt ATTRIBUTE_UNUSED
)
3549 Elf64_External_Dyn
*dyncon
, *dynconend
;
3550 int stt_regidx
= -1;
3552 dyncon
= (Elf64_External_Dyn
*) sdyn
->contents
;
3553 dynconend
= (Elf64_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
3554 for (; dyncon
< dynconend
; dyncon
++)
3556 Elf_Internal_Dyn dyn
;
3560 bfd_elf64_swap_dyn_in (dynobj
, dyncon
, &dyn
);
3564 case DT_PLTGOT
: name
= ".plt"; size
= FALSE
; break;
3565 case DT_PLTRELSZ
: name
= ".rela.plt"; size
= TRUE
; break;
3566 case DT_JMPREL
: name
= ".rela.plt"; size
= FALSE
; break;
3567 case DT_SPARC_REGISTER
:
3568 if (stt_regidx
== -1)
3571 _bfd_elf_link_lookup_local_dynindx (info
, output_bfd
, -1);
3572 if (stt_regidx
== -1)
3575 dyn
.d_un
.d_val
= stt_regidx
++;
3576 bfd_elf64_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3578 default: name
= NULL
; size
= FALSE
; break;
3585 s
= bfd_get_section_by_name (output_bfd
, name
);
3591 dyn
.d_un
.d_ptr
= s
->vma
;
3593 dyn
.d_un
.d_val
= s
->size
;
3595 bfd_elf64_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3603 sparc32_finish_dyn (bfd
*output_bfd
,
3604 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
3605 bfd
*dynobj
, asection
*sdyn
,
3606 asection
*splt ATTRIBUTE_UNUSED
)
3608 Elf32_External_Dyn
*dyncon
, *dynconend
;
3610 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
3611 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
3612 for (; dyncon
< dynconend
; dyncon
++)
3614 Elf_Internal_Dyn dyn
;
3618 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
3622 case DT_PLTGOT
: name
= ".plt"; size
= FALSE
; break;
3623 case DT_PLTRELSZ
: name
= ".rela.plt"; size
= TRUE
; break;
3624 case DT_JMPREL
: name
= ".rela.plt"; size
= FALSE
; break;
3625 default: name
= NULL
; size
= FALSE
; break;
3632 s
= bfd_get_section_by_name (output_bfd
, name
);
3638 dyn
.d_un
.d_ptr
= s
->vma
;
3640 dyn
.d_un
.d_val
= s
->size
;
3642 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3649 _bfd_sparc_elf_finish_dynamic_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
3653 struct _bfd_sparc_elf_link_hash_table
*htab
;
3655 htab
= _bfd_sparc_elf_hash_table (info
);
3656 dynobj
= htab
->elf
.dynobj
;
3658 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
3660 if (elf_hash_table (info
)->dynamic_sections_created
)
3665 splt
= bfd_get_section_by_name (dynobj
, ".plt");
3666 BFD_ASSERT (splt
!= NULL
&& sdyn
!= NULL
);
3669 if (ABI_64_P (output_bfd
))
3670 ret
= sparc64_finish_dyn (output_bfd
, info
, dynobj
, sdyn
, splt
);
3673 ret
= sparc32_finish_dyn (output_bfd
, info
, dynobj
, sdyn
, splt
);
3678 /* Initialize the contents of the .plt section. */
3681 if (ABI_64_P (output_bfd
))
3682 memset (splt
->contents
, 0, 4 * PLT64_ENTRY_SIZE
);
3685 memset (splt
->contents
, 0, 4 * PLT32_ENTRY_SIZE
);
3686 bfd_put_32 (output_bfd
, (bfd_vma
) SPARC_NOP
,
3687 splt
->contents
+ splt
->size
- 4);
3691 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
=
3692 (ABI_64_P (output_bfd
) ? PLT64_ENTRY_SIZE
: PLT32_ENTRY_SIZE
);
3695 /* Set the first entry in the global offset table to the address of
3696 the dynamic section. */
3697 if (htab
->sgot
&& htab
->sgot
->size
> 0)
3699 bfd_vma val
= (sdyn
?
3700 sdyn
->output_section
->vma
+ sdyn
->output_offset
:
3703 SPARC_ELF_PUT_WORD (htab
, output_bfd
, val
, htab
->sgot
->contents
);
3707 elf_section_data (htab
->sgot
->output_section
)->this_hdr
.sh_entsize
=
3708 SPARC_ELF_WORD_BYTES (htab
);
3714 /* Set the right machine number for a SPARC ELF file. */
3717 _bfd_sparc_elf_object_p (bfd
*abfd
)
3719 if (ABI_64_P (abfd
))
3721 unsigned long mach
= bfd_mach_sparc_v9
;
3723 if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_SUN_US3
)
3724 mach
= bfd_mach_sparc_v9b
;
3725 else if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_SUN_US1
)
3726 mach
= bfd_mach_sparc_v9a
;
3727 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
, mach
);
3731 if (elf_elfheader (abfd
)->e_machine
== EM_SPARC32PLUS
)
3733 if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_SUN_US3
)
3734 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
,
3735 bfd_mach_sparc_v8plusb
);
3736 else if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_SUN_US1
)
3737 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
,
3738 bfd_mach_sparc_v8plusa
);
3739 else if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_32PLUS
)
3740 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
,
3741 bfd_mach_sparc_v8plus
);
3745 else if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_LEDATA
)
3746 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
,
3747 bfd_mach_sparc_sparclite_le
);
3749 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
, bfd_mach_sparc
);
3753 /* Return address for Ith PLT stub in section PLT, for relocation REL
3754 or (bfd_vma) -1 if it should not be included. */
3757 _bfd_sparc_elf_plt_sym_val (bfd_vma i
, const asection
*plt
, const arelent
*rel
)
3759 if (ABI_64_P (plt
->owner
))
3763 i
+= PLT64_HEADER_SIZE
/ PLT64_ENTRY_SIZE
;
3764 if (i
< PLT64_LARGE_THRESHOLD
)
3765 return plt
->vma
+ i
* PLT64_ENTRY_SIZE
;
3767 j
= (i
- PLT64_LARGE_THRESHOLD
) % 160;
3769 return plt
->vma
+ i
* PLT64_ENTRY_SIZE
+ j
* 4 * 6;
3772 return rel
->address
;