1 /* SPARC-specific support for ELF
2 Copyright 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
22 /* This file handles functionality common to the different SPARC ABI's. */
28 #include "libiberty.h"
30 #include "elf/sparc.h"
31 #include "opcode/sparc.h"
32 #include "elfxx-sparc.h"
33 #include "elf-vxworks.h"
35 /* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
36 #define MINUS_ONE (~ (bfd_vma) 0)
38 #define ABI_64_P(abfd) \
39 (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
41 /* The relocation "howto" table. */
43 /* Utility for performing the standard initial work of an instruction
45 *PRELOCATION will contain the relocated item.
46 *PINSN will contain the instruction from the input stream.
47 If the result is `bfd_reloc_other' the caller can continue with
48 performing the relocation. Otherwise it must stop and return the
49 value to its caller. */
51 static bfd_reloc_status_type
52 init_insn_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
53 PTR data
, asection
*input_section
, bfd
*output_bfd
,
54 bfd_vma
*prelocation
, bfd_vma
*pinsn
)
57 reloc_howto_type
*howto
= reloc_entry
->howto
;
59 if (output_bfd
!= (bfd
*) NULL
60 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
61 && (! howto
->partial_inplace
62 || reloc_entry
->addend
== 0))
64 reloc_entry
->address
+= input_section
->output_offset
;
68 /* This works because partial_inplace is FALSE. */
69 if (output_bfd
!= NULL
)
70 return bfd_reloc_continue
;
72 if (reloc_entry
->address
> bfd_get_section_limit (abfd
, input_section
))
73 return bfd_reloc_outofrange
;
75 relocation
= (symbol
->value
76 + symbol
->section
->output_section
->vma
77 + symbol
->section
->output_offset
);
78 relocation
+= reloc_entry
->addend
;
79 if (howto
->pc_relative
)
81 relocation
-= (input_section
->output_section
->vma
82 + input_section
->output_offset
);
83 relocation
-= reloc_entry
->address
;
86 *prelocation
= relocation
;
87 *pinsn
= bfd_get_32 (abfd
, (bfd_byte
*) data
+ reloc_entry
->address
);
88 return bfd_reloc_other
;
91 /* For unsupported relocs. */
93 static bfd_reloc_status_type
94 sparc_elf_notsup_reloc (bfd
*abfd ATTRIBUTE_UNUSED
,
95 arelent
*reloc_entry ATTRIBUTE_UNUSED
,
96 asymbol
*symbol ATTRIBUTE_UNUSED
,
97 PTR data ATTRIBUTE_UNUSED
,
98 asection
*input_section ATTRIBUTE_UNUSED
,
99 bfd
*output_bfd ATTRIBUTE_UNUSED
,
100 char **error_message ATTRIBUTE_UNUSED
)
102 return bfd_reloc_notsupported
;
105 /* Handle the WDISP16 reloc. */
107 static bfd_reloc_status_type
108 sparc_elf_wdisp16_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
109 PTR data
, asection
*input_section
, bfd
*output_bfd
,
110 char **error_message ATTRIBUTE_UNUSED
)
114 bfd_reloc_status_type status
;
116 status
= init_insn_reloc (abfd
, reloc_entry
, symbol
, data
,
117 input_section
, output_bfd
, &relocation
, &insn
);
118 if (status
!= bfd_reloc_other
)
121 insn
&= ~ (bfd_vma
) 0x303fff;
122 insn
|= (((relocation
>> 2) & 0xc000) << 6) | ((relocation
>> 2) & 0x3fff);
123 bfd_put_32 (abfd
, insn
, (bfd_byte
*) data
+ reloc_entry
->address
);
125 if ((bfd_signed_vma
) relocation
< - 0x40000
126 || (bfd_signed_vma
) relocation
> 0x3ffff)
127 return bfd_reloc_overflow
;
132 /* Handle the HIX22 reloc. */
134 static bfd_reloc_status_type
135 sparc_elf_hix22_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
136 PTR data
, asection
*input_section
, bfd
*output_bfd
,
137 char **error_message ATTRIBUTE_UNUSED
)
141 bfd_reloc_status_type status
;
143 status
= init_insn_reloc (abfd
, reloc_entry
, symbol
, data
,
144 input_section
, output_bfd
, &relocation
, &insn
);
145 if (status
!= bfd_reloc_other
)
148 relocation
^= MINUS_ONE
;
149 insn
= (insn
&~ (bfd_vma
) 0x3fffff) | ((relocation
>> 10) & 0x3fffff);
150 bfd_put_32 (abfd
, insn
, (bfd_byte
*) data
+ reloc_entry
->address
);
152 if ((relocation
& ~ (bfd_vma
) 0xffffffff) != 0)
153 return bfd_reloc_overflow
;
158 /* Handle the LOX10 reloc. */
160 static bfd_reloc_status_type
161 sparc_elf_lox10_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
162 PTR data
, asection
*input_section
, bfd
*output_bfd
,
163 char **error_message ATTRIBUTE_UNUSED
)
167 bfd_reloc_status_type status
;
169 status
= init_insn_reloc (abfd
, reloc_entry
, symbol
, data
,
170 input_section
, output_bfd
, &relocation
, &insn
);
171 if (status
!= bfd_reloc_other
)
174 insn
= (insn
&~ (bfd_vma
) 0x1fff) | 0x1c00 | (relocation
& 0x3ff);
175 bfd_put_32 (abfd
, insn
, (bfd_byte
*) data
+ reloc_entry
->address
);
180 static reloc_howto_type _bfd_sparc_elf_howto_table
[] =
182 HOWTO(R_SPARC_NONE
, 0,0, 0,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_NONE", FALSE
,0,0x00000000,TRUE
),
183 HOWTO(R_SPARC_8
, 0,0, 8,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_8", FALSE
,0,0x000000ff,TRUE
),
184 HOWTO(R_SPARC_16
, 0,1,16,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_16", FALSE
,0,0x0000ffff,TRUE
),
185 HOWTO(R_SPARC_32
, 0,2,32,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_32", FALSE
,0,0xffffffff,TRUE
),
186 HOWTO(R_SPARC_DISP8
, 0,0, 8,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_DISP8", FALSE
,0,0x000000ff,TRUE
),
187 HOWTO(R_SPARC_DISP16
, 0,1,16,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_DISP16", FALSE
,0,0x0000ffff,TRUE
),
188 HOWTO(R_SPARC_DISP32
, 0,2,32,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_DISP32", FALSE
,0,0xffffffff,TRUE
),
189 HOWTO(R_SPARC_WDISP30
, 2,2,30,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_WDISP30", FALSE
,0,0x3fffffff,TRUE
),
190 HOWTO(R_SPARC_WDISP22
, 2,2,22,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_WDISP22", FALSE
,0,0x003fffff,TRUE
),
191 HOWTO(R_SPARC_HI22
, 10,2,22,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_HI22", FALSE
,0,0x003fffff,TRUE
),
192 HOWTO(R_SPARC_22
, 0,2,22,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_22", FALSE
,0,0x003fffff,TRUE
),
193 HOWTO(R_SPARC_13
, 0,2,13,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_13", FALSE
,0,0x00001fff,TRUE
),
194 HOWTO(R_SPARC_LO10
, 0,2,10,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_LO10", FALSE
,0,0x000003ff,TRUE
),
195 HOWTO(R_SPARC_GOT10
, 0,2,10,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_GOT10", FALSE
,0,0x000003ff,TRUE
),
196 HOWTO(R_SPARC_GOT13
, 0,2,13,FALSE
,0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_GOT13", FALSE
,0,0x00001fff,TRUE
),
197 HOWTO(R_SPARC_GOT22
, 10,2,22,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_GOT22", FALSE
,0,0x003fffff,TRUE
),
198 HOWTO(R_SPARC_PC10
, 0,2,10,TRUE
, 0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_PC10", FALSE
,0,0x000003ff,TRUE
),
199 HOWTO(R_SPARC_PC22
, 10,2,22,TRUE
, 0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_PC22", FALSE
,0,0x003fffff,TRUE
),
200 HOWTO(R_SPARC_WPLT30
, 2,2,30,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_WPLT30", FALSE
,0,0x3fffffff,TRUE
),
201 HOWTO(R_SPARC_COPY
, 0,0,00,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_COPY", FALSE
,0,0x00000000,TRUE
),
202 HOWTO(R_SPARC_GLOB_DAT
, 0,0,00,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_GLOB_DAT",FALSE
,0,0x00000000,TRUE
),
203 HOWTO(R_SPARC_JMP_SLOT
, 0,0,00,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_JMP_SLOT",FALSE
,0,0x00000000,TRUE
),
204 HOWTO(R_SPARC_RELATIVE
, 0,0,00,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_RELATIVE",FALSE
,0,0x00000000,TRUE
),
205 HOWTO(R_SPARC_UA32
, 0,2,32,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_UA32", FALSE
,0,0xffffffff,TRUE
),
206 HOWTO(R_SPARC_PLT32
, 0,2,32,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_PLT32", FALSE
,0,0xffffffff,TRUE
),
207 HOWTO(R_SPARC_HIPLT22
, 0,0,00,FALSE
,0,complain_overflow_dont
, sparc_elf_notsup_reloc
, "R_SPARC_HIPLT22", FALSE
,0,0x00000000,TRUE
),
208 HOWTO(R_SPARC_LOPLT10
, 0,0,00,FALSE
,0,complain_overflow_dont
, sparc_elf_notsup_reloc
, "R_SPARC_LOPLT10", FALSE
,0,0x00000000,TRUE
),
209 HOWTO(R_SPARC_PCPLT32
, 0,0,00,FALSE
,0,complain_overflow_dont
, sparc_elf_notsup_reloc
, "R_SPARC_PCPLT32", FALSE
,0,0x00000000,TRUE
),
210 HOWTO(R_SPARC_PCPLT22
, 0,0,00,FALSE
,0,complain_overflow_dont
, sparc_elf_notsup_reloc
, "R_SPARC_PCPLT22", FALSE
,0,0x00000000,TRUE
),
211 HOWTO(R_SPARC_PCPLT10
, 0,0,00,FALSE
,0,complain_overflow_dont
, sparc_elf_notsup_reloc
, "R_SPARC_PCPLT10", FALSE
,0,0x00000000,TRUE
),
212 HOWTO(R_SPARC_10
, 0,2,10,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_10", FALSE
,0,0x000003ff,TRUE
),
213 HOWTO(R_SPARC_11
, 0,2,11,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_11", FALSE
,0,0x000007ff,TRUE
),
214 HOWTO(R_SPARC_64
, 0,4,64,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_64", FALSE
,0,MINUS_ONE
, TRUE
),
215 HOWTO(R_SPARC_OLO10
, 0,2,13,FALSE
,0,complain_overflow_signed
, sparc_elf_notsup_reloc
, "R_SPARC_OLO10", FALSE
,0,0x00001fff,TRUE
),
216 HOWTO(R_SPARC_HH22
, 42,2,22,FALSE
,0,complain_overflow_unsigned
,bfd_elf_generic_reloc
, "R_SPARC_HH22", FALSE
,0,0x003fffff,TRUE
),
217 HOWTO(R_SPARC_HM10
, 32,2,10,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_HM10", FALSE
,0,0x000003ff,TRUE
),
218 HOWTO(R_SPARC_LM22
, 10,2,22,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_LM22", FALSE
,0,0x003fffff,TRUE
),
219 HOWTO(R_SPARC_PC_HH22
, 42,2,22,TRUE
, 0,complain_overflow_unsigned
,bfd_elf_generic_reloc
, "R_SPARC_PC_HH22", FALSE
,0,0x003fffff,TRUE
),
220 HOWTO(R_SPARC_PC_HM10
, 32,2,10,TRUE
, 0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_PC_HM10", FALSE
,0,0x000003ff,TRUE
),
221 HOWTO(R_SPARC_PC_LM22
, 10,2,22,TRUE
, 0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_PC_LM22", FALSE
,0,0x003fffff,TRUE
),
222 HOWTO(R_SPARC_WDISP16
, 2,2,16,TRUE
, 0,complain_overflow_signed
, sparc_elf_wdisp16_reloc
,"R_SPARC_WDISP16", FALSE
,0,0x00000000,TRUE
),
223 HOWTO(R_SPARC_WDISP19
, 2,2,19,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_WDISP19", FALSE
,0,0x0007ffff,TRUE
),
224 HOWTO(R_SPARC_UNUSED_42
, 0,0, 0,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_UNUSED_42",FALSE
,0,0x00000000,TRUE
),
225 HOWTO(R_SPARC_7
, 0,2, 7,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_7", FALSE
,0,0x0000007f,TRUE
),
226 HOWTO(R_SPARC_5
, 0,2, 5,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_5", FALSE
,0,0x0000001f,TRUE
),
227 HOWTO(R_SPARC_6
, 0,2, 6,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_6", FALSE
,0,0x0000003f,TRUE
),
228 HOWTO(R_SPARC_DISP64
, 0,4,64,TRUE
, 0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_DISP64", FALSE
,0,MINUS_ONE
, TRUE
),
229 HOWTO(R_SPARC_PLT64
, 0,4,64,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_PLT64", FALSE
,0,MINUS_ONE
, TRUE
),
230 HOWTO(R_SPARC_HIX22
, 0,4, 0,FALSE
,0,complain_overflow_bitfield
,sparc_elf_hix22_reloc
, "R_SPARC_HIX22", FALSE
,0,MINUS_ONE
, FALSE
),
231 HOWTO(R_SPARC_LOX10
, 0,4, 0,FALSE
,0,complain_overflow_dont
, sparc_elf_lox10_reloc
, "R_SPARC_LOX10", FALSE
,0,MINUS_ONE
, FALSE
),
232 HOWTO(R_SPARC_H44
, 22,2,22,FALSE
,0,complain_overflow_unsigned
,bfd_elf_generic_reloc
, "R_SPARC_H44", FALSE
,0,0x003fffff,FALSE
),
233 HOWTO(R_SPARC_M44
, 12,2,10,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_M44", FALSE
,0,0x000003ff,FALSE
),
234 HOWTO(R_SPARC_L44
, 0,2,13,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_L44", FALSE
,0,0x00000fff,FALSE
),
235 HOWTO(R_SPARC_REGISTER
, 0,4, 0,FALSE
,0,complain_overflow_bitfield
,sparc_elf_notsup_reloc
, "R_SPARC_REGISTER",FALSE
,0,MINUS_ONE
, FALSE
),
236 HOWTO(R_SPARC_UA64
, 0,4,64,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_UA64", FALSE
,0,MINUS_ONE
, TRUE
),
237 HOWTO(R_SPARC_UA16
, 0,1,16,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_UA16", FALSE
,0,0x0000ffff,TRUE
),
238 HOWTO(R_SPARC_TLS_GD_HI22
,10,2,22,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_GD_HI22",FALSE
,0,0x003fffff,TRUE
),
239 HOWTO(R_SPARC_TLS_GD_LO10
,0,2,10,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_GD_LO10",FALSE
,0,0x000003ff,TRUE
),
240 HOWTO(R_SPARC_TLS_GD_ADD
,0,0, 0,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_GD_ADD",FALSE
,0,0x00000000,TRUE
),
241 HOWTO(R_SPARC_TLS_GD_CALL
,2,2,30,TRUE
,0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_TLS_GD_CALL",FALSE
,0,0x3fffffff,TRUE
),
242 HOWTO(R_SPARC_TLS_LDM_HI22
,10,2,22,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_LDM_HI22",FALSE
,0,0x003fffff,TRUE
),
243 HOWTO(R_SPARC_TLS_LDM_LO10
,0,2,10,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_LDM_LO10",FALSE
,0,0x000003ff,TRUE
),
244 HOWTO(R_SPARC_TLS_LDM_ADD
,0,0, 0,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_LDM_ADD",FALSE
,0,0x00000000,TRUE
),
245 HOWTO(R_SPARC_TLS_LDM_CALL
,2,2,30,TRUE
,0,complain_overflow_signed
, bfd_elf_generic_reloc
, "R_SPARC_TLS_LDM_CALL",FALSE
,0,0x3fffffff,TRUE
),
246 HOWTO(R_SPARC_TLS_LDO_HIX22
,0,2,0,FALSE
,0,complain_overflow_bitfield
,sparc_elf_hix22_reloc
,"R_SPARC_TLS_LDO_HIX22",FALSE
,0,0x003fffff, FALSE
),
247 HOWTO(R_SPARC_TLS_LDO_LOX10
,0,2,0,FALSE
,0,complain_overflow_dont
, sparc_elf_lox10_reloc
, "R_SPARC_TLS_LDO_LOX10",FALSE
,0,0x000003ff, FALSE
),
248 HOWTO(R_SPARC_TLS_LDO_ADD
,0,0, 0,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_LDO_ADD",FALSE
,0,0x00000000,TRUE
),
249 HOWTO(R_SPARC_TLS_IE_HI22
,10,2,22,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_IE_HI22",FALSE
,0,0x003fffff,TRUE
),
250 HOWTO(R_SPARC_TLS_IE_LO10
,0,2,10,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_IE_LO10",FALSE
,0,0x000003ff,TRUE
),
251 HOWTO(R_SPARC_TLS_IE_LD
,0,0, 0,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_IE_LD",FALSE
,0,0x00000000,TRUE
),
252 HOWTO(R_SPARC_TLS_IE_LDX
,0,0, 0,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_IE_LDX",FALSE
,0,0x00000000,TRUE
),
253 HOWTO(R_SPARC_TLS_IE_ADD
,0,0, 0,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_IE_ADD",FALSE
,0,0x00000000,TRUE
),
254 HOWTO(R_SPARC_TLS_LE_HIX22
,0,2,0,FALSE
,0,complain_overflow_bitfield
,sparc_elf_hix22_reloc
, "R_SPARC_TLS_LE_HIX22",FALSE
,0,0x003fffff, FALSE
),
255 HOWTO(R_SPARC_TLS_LE_LOX10
,0,2,0,FALSE
,0,complain_overflow_dont
, sparc_elf_lox10_reloc
, "R_SPARC_TLS_LE_LOX10",FALSE
,0,0x000003ff, FALSE
),
256 HOWTO(R_SPARC_TLS_DTPMOD32
,0,0, 0,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_DTPMOD32",FALSE
,0,0x00000000,TRUE
),
257 HOWTO(R_SPARC_TLS_DTPMOD64
,0,0, 0,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_DTPMOD64",FALSE
,0,0x00000000,TRUE
),
258 HOWTO(R_SPARC_TLS_DTPOFF32
,0,2,32,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
,"R_SPARC_TLS_DTPOFF32",FALSE
,0,0xffffffff,TRUE
),
259 HOWTO(R_SPARC_TLS_DTPOFF64
,0,4,64,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
,"R_SPARC_TLS_DTPOFF64",FALSE
,0,MINUS_ONE
,TRUE
),
260 HOWTO(R_SPARC_TLS_TPOFF32
,0,0, 0,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_TPOFF32",FALSE
,0,0x00000000,TRUE
),
261 HOWTO(R_SPARC_TLS_TPOFF64
,0,0, 0,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_TLS_TPOFF64",FALSE
,0,0x00000000,TRUE
),
262 HOWTO(R_SPARC_GOTDATA_HIX22
,0,2,0,FALSE
,0,complain_overflow_bitfield
,sparc_elf_hix22_reloc
,"R_SPARC_GOTDATA_HIX22",FALSE
,0,0x003fffff, FALSE
),
263 HOWTO(R_SPARC_GOTDATA_LOX10
,0,2,0,FALSE
,0,complain_overflow_dont
, sparc_elf_lox10_reloc
, "R_SPARC_GOTDATA_LOX10",FALSE
,0,0x000003ff, FALSE
),
264 HOWTO(R_SPARC_GOTDATA_OP_HIX22
,0,2,0,FALSE
,0,complain_overflow_bitfield
,sparc_elf_hix22_reloc
,"R_SPARC_GOTDATA_OP_HIX22",FALSE
,0,0x003fffff, FALSE
),
265 HOWTO(R_SPARC_GOTDATA_OP_LOX10
,0,2,0,FALSE
,0,complain_overflow_dont
, sparc_elf_lox10_reloc
, "R_SPARC_GOTDATA_OP_LOX10",FALSE
,0,0x000003ff, FALSE
),
266 HOWTO(R_SPARC_GOTDATA_OP
,0,0, 0,FALSE
,0,complain_overflow_dont
, bfd_elf_generic_reloc
, "R_SPARC_GOTDATA_OP",FALSE
,0,0x00000000,TRUE
),
268 static reloc_howto_type sparc_vtinherit_howto
=
269 HOWTO (R_SPARC_GNU_VTINHERIT
, 0,2,0,FALSE
,0,complain_overflow_dont
, NULL
, "R_SPARC_GNU_VTINHERIT", FALSE
,0, 0, FALSE
);
270 static reloc_howto_type sparc_vtentry_howto
=
271 HOWTO (R_SPARC_GNU_VTENTRY
, 0,2,0,FALSE
,0,complain_overflow_dont
, _bfd_elf_rel_vtable_reloc_fn
,"R_SPARC_GNU_VTENTRY", FALSE
,0,0, FALSE
);
272 static reloc_howto_type sparc_rev32_howto
=
273 HOWTO(R_SPARC_REV32
, 0,2,32,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_REV32", FALSE
,0,0xffffffff,TRUE
);
275 struct elf_reloc_map
{
276 bfd_reloc_code_real_type bfd_reloc_val
;
277 unsigned char elf_reloc_val
;
280 static const struct elf_reloc_map sparc_reloc_map
[] =
282 { BFD_RELOC_NONE
, R_SPARC_NONE
, },
283 { BFD_RELOC_16
, R_SPARC_16
, },
284 { BFD_RELOC_16_PCREL
, R_SPARC_DISP16
},
285 { BFD_RELOC_8
, R_SPARC_8
},
286 { BFD_RELOC_8_PCREL
, R_SPARC_DISP8
},
287 { BFD_RELOC_CTOR
, R_SPARC_64
},
288 { BFD_RELOC_32
, R_SPARC_32
},
289 { BFD_RELOC_32_PCREL
, R_SPARC_DISP32
},
290 { BFD_RELOC_HI22
, R_SPARC_HI22
},
291 { BFD_RELOC_LO10
, R_SPARC_LO10
, },
292 { BFD_RELOC_32_PCREL_S2
, R_SPARC_WDISP30
},
293 { BFD_RELOC_64_PCREL
, R_SPARC_DISP64
},
294 { BFD_RELOC_SPARC22
, R_SPARC_22
},
295 { BFD_RELOC_SPARC13
, R_SPARC_13
},
296 { BFD_RELOC_SPARC_GOT10
, R_SPARC_GOT10
},
297 { BFD_RELOC_SPARC_GOT13
, R_SPARC_GOT13
},
298 { BFD_RELOC_SPARC_GOT22
, R_SPARC_GOT22
},
299 { BFD_RELOC_SPARC_PC10
, R_SPARC_PC10
},
300 { BFD_RELOC_SPARC_PC22
, R_SPARC_PC22
},
301 { BFD_RELOC_SPARC_WPLT30
, R_SPARC_WPLT30
},
302 { BFD_RELOC_SPARC_COPY
, R_SPARC_COPY
},
303 { BFD_RELOC_SPARC_GLOB_DAT
, R_SPARC_GLOB_DAT
},
304 { BFD_RELOC_SPARC_JMP_SLOT
, R_SPARC_JMP_SLOT
},
305 { BFD_RELOC_SPARC_RELATIVE
, R_SPARC_RELATIVE
},
306 { BFD_RELOC_SPARC_WDISP22
, R_SPARC_WDISP22
},
307 { BFD_RELOC_SPARC_UA16
, R_SPARC_UA16
},
308 { BFD_RELOC_SPARC_UA32
, R_SPARC_UA32
},
309 { BFD_RELOC_SPARC_UA64
, R_SPARC_UA64
},
310 { BFD_RELOC_SPARC_10
, R_SPARC_10
},
311 { BFD_RELOC_SPARC_11
, R_SPARC_11
},
312 { BFD_RELOC_SPARC_64
, R_SPARC_64
},
313 { BFD_RELOC_SPARC_OLO10
, R_SPARC_OLO10
},
314 { BFD_RELOC_SPARC_HH22
, R_SPARC_HH22
},
315 { BFD_RELOC_SPARC_HM10
, R_SPARC_HM10
},
316 { BFD_RELOC_SPARC_LM22
, R_SPARC_LM22
},
317 { BFD_RELOC_SPARC_PC_HH22
, R_SPARC_PC_HH22
},
318 { BFD_RELOC_SPARC_PC_HM10
, R_SPARC_PC_HM10
},
319 { BFD_RELOC_SPARC_PC_LM22
, R_SPARC_PC_LM22
},
320 { BFD_RELOC_SPARC_WDISP16
, R_SPARC_WDISP16
},
321 { BFD_RELOC_SPARC_WDISP19
, R_SPARC_WDISP19
},
322 { BFD_RELOC_SPARC_7
, R_SPARC_7
},
323 { BFD_RELOC_SPARC_5
, R_SPARC_5
},
324 { BFD_RELOC_SPARC_6
, R_SPARC_6
},
325 { BFD_RELOC_SPARC_DISP64
, R_SPARC_DISP64
},
326 { BFD_RELOC_SPARC_TLS_GD_HI22
, R_SPARC_TLS_GD_HI22
},
327 { BFD_RELOC_SPARC_TLS_GD_LO10
, R_SPARC_TLS_GD_LO10
},
328 { BFD_RELOC_SPARC_TLS_GD_ADD
, R_SPARC_TLS_GD_ADD
},
329 { BFD_RELOC_SPARC_TLS_GD_CALL
, R_SPARC_TLS_GD_CALL
},
330 { BFD_RELOC_SPARC_TLS_LDM_HI22
, R_SPARC_TLS_LDM_HI22
},
331 { BFD_RELOC_SPARC_TLS_LDM_LO10
, R_SPARC_TLS_LDM_LO10
},
332 { BFD_RELOC_SPARC_TLS_LDM_ADD
, R_SPARC_TLS_LDM_ADD
},
333 { BFD_RELOC_SPARC_TLS_LDM_CALL
, R_SPARC_TLS_LDM_CALL
},
334 { BFD_RELOC_SPARC_TLS_LDO_HIX22
, R_SPARC_TLS_LDO_HIX22
},
335 { BFD_RELOC_SPARC_TLS_LDO_LOX10
, R_SPARC_TLS_LDO_LOX10
},
336 { BFD_RELOC_SPARC_TLS_LDO_ADD
, R_SPARC_TLS_LDO_ADD
},
337 { BFD_RELOC_SPARC_TLS_IE_HI22
, R_SPARC_TLS_IE_HI22
},
338 { BFD_RELOC_SPARC_TLS_IE_LO10
, R_SPARC_TLS_IE_LO10
},
339 { BFD_RELOC_SPARC_TLS_IE_LD
, R_SPARC_TLS_IE_LD
},
340 { BFD_RELOC_SPARC_TLS_IE_LDX
, R_SPARC_TLS_IE_LDX
},
341 { BFD_RELOC_SPARC_TLS_IE_ADD
, R_SPARC_TLS_IE_ADD
},
342 { BFD_RELOC_SPARC_TLS_LE_HIX22
, R_SPARC_TLS_LE_HIX22
},
343 { BFD_RELOC_SPARC_TLS_LE_LOX10
, R_SPARC_TLS_LE_LOX10
},
344 { BFD_RELOC_SPARC_TLS_DTPMOD32
, R_SPARC_TLS_DTPMOD32
},
345 { BFD_RELOC_SPARC_TLS_DTPMOD64
, R_SPARC_TLS_DTPMOD64
},
346 { BFD_RELOC_SPARC_TLS_DTPOFF32
, R_SPARC_TLS_DTPOFF32
},
347 { BFD_RELOC_SPARC_TLS_DTPOFF64
, R_SPARC_TLS_DTPOFF64
},
348 { BFD_RELOC_SPARC_TLS_TPOFF32
, R_SPARC_TLS_TPOFF32
},
349 { BFD_RELOC_SPARC_TLS_TPOFF64
, R_SPARC_TLS_TPOFF64
},
350 { BFD_RELOC_SPARC_PLT32
, R_SPARC_PLT32
},
351 { BFD_RELOC_SPARC_PLT64
, R_SPARC_PLT64
},
352 { BFD_RELOC_SPARC_HIX22
, R_SPARC_HIX22
},
353 { BFD_RELOC_SPARC_LOX10
, R_SPARC_LOX10
},
354 { BFD_RELOC_SPARC_H44
, R_SPARC_H44
},
355 { BFD_RELOC_SPARC_M44
, R_SPARC_M44
},
356 { BFD_RELOC_SPARC_L44
, R_SPARC_L44
},
357 { BFD_RELOC_SPARC_GOTDATA_HIX22
, R_SPARC_GOTDATA_HIX22
},
358 { BFD_RELOC_SPARC_GOTDATA_LOX10
, R_SPARC_GOTDATA_LOX10
},
359 { BFD_RELOC_SPARC_GOTDATA_OP_HIX22
, R_SPARC_GOTDATA_OP_HIX22
},
360 { BFD_RELOC_SPARC_GOTDATA_OP_LOX10
, R_SPARC_GOTDATA_OP_LOX10
},
361 { BFD_RELOC_SPARC_GOTDATA_OP
, R_SPARC_GOTDATA_OP
},
362 { BFD_RELOC_SPARC_REGISTER
, R_SPARC_REGISTER
},
363 { BFD_RELOC_VTABLE_INHERIT
, R_SPARC_GNU_VTINHERIT
},
364 { BFD_RELOC_VTABLE_ENTRY
, R_SPARC_GNU_VTENTRY
},
365 { BFD_RELOC_SPARC_REV32
, R_SPARC_REV32
},
369 _bfd_sparc_elf_reloc_type_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
370 bfd_reloc_code_real_type code
)
376 case BFD_RELOC_VTABLE_INHERIT
:
377 return &sparc_vtinherit_howto
;
379 case BFD_RELOC_VTABLE_ENTRY
:
380 return &sparc_vtentry_howto
;
382 case BFD_RELOC_SPARC_REV32
:
383 return &sparc_rev32_howto
;
387 i
< sizeof (sparc_reloc_map
) / sizeof (struct elf_reloc_map
);
390 if (sparc_reloc_map
[i
].bfd_reloc_val
== code
)
391 return (_bfd_sparc_elf_howto_table
392 + (int) sparc_reloc_map
[i
].elf_reloc_val
);
395 bfd_set_error (bfd_error_bad_value
);
400 _bfd_sparc_elf_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
406 i
< (sizeof (_bfd_sparc_elf_howto_table
)
407 / sizeof (_bfd_sparc_elf_howto_table
[0]));
409 if (_bfd_sparc_elf_howto_table
[i
].name
!= NULL
410 && strcasecmp (_bfd_sparc_elf_howto_table
[i
].name
, r_name
) == 0)
411 return &_bfd_sparc_elf_howto_table
[i
];
413 if (strcasecmp (sparc_vtinherit_howto
.name
, r_name
) == 0)
414 return &sparc_vtinherit_howto
;
415 if (strcasecmp (sparc_vtentry_howto
.name
, r_name
) == 0)
416 return &sparc_vtentry_howto
;
417 if (strcasecmp (sparc_rev32_howto
.name
, r_name
) == 0)
418 return &sparc_rev32_howto
;
424 _bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type
)
428 case R_SPARC_GNU_VTINHERIT
:
429 return &sparc_vtinherit_howto
;
431 case R_SPARC_GNU_VTENTRY
:
432 return &sparc_vtentry_howto
;
435 return &sparc_rev32_howto
;
438 if (r_type
>= (unsigned int) R_SPARC_max_std
)
440 (*_bfd_error_handler
) (_("invalid relocation type %d"),
442 r_type
= R_SPARC_NONE
;
444 return &_bfd_sparc_elf_howto_table
[r_type
];
448 /* Both 32-bit and 64-bit sparc encode this in an identical manner,
449 so just take advantage of that. */
450 #define SPARC_ELF_R_TYPE(r_info) \
454 _bfd_sparc_elf_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*cache_ptr
,
455 Elf_Internal_Rela
*dst
)
457 unsigned int r_type
= SPARC_ELF_R_TYPE (dst
->r_info
);
459 cache_ptr
->howto
= _bfd_sparc_elf_info_to_howto_ptr (r_type
);
463 /* The nop opcode we use. */
464 #define SPARC_NOP 0x01000000
466 #define SPARC_INSN_BYTES 4
468 /* The SPARC linker needs to keep track of the number of relocs that it
469 decides to copy as dynamic relocs in check_relocs for each symbol.
470 This is so that it can later discard them if they are found to be
471 unnecessary. We store the information in a field extending the
472 regular ELF linker hash table. */
474 struct _bfd_sparc_elf_dyn_relocs
476 struct _bfd_sparc_elf_dyn_relocs
*next
;
478 /* The input section of the reloc. */
481 /* Total number of relocs copied for the input section. */
484 /* Number of pc-relative relocs copied for the input section. */
485 bfd_size_type pc_count
;
488 /* SPARC ELF linker hash entry. */
490 struct _bfd_sparc_elf_link_hash_entry
492 struct elf_link_hash_entry elf
;
494 /* Track dynamic relocs copied for this symbol. */
495 struct _bfd_sparc_elf_dyn_relocs
*dyn_relocs
;
497 #define GOT_UNKNOWN 0
501 unsigned char tls_type
;
504 #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
506 struct _bfd_sparc_elf_obj_tdata
508 struct elf_obj_tdata root
;
510 /* tls_type for each local got entry. */
511 char *local_got_tls_type
;
513 /* TRUE if TLS GD relocs has been seen for this object. */
514 bfd_boolean has_tlsgd
;
517 #define _bfd_sparc_elf_tdata(abfd) \
518 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
520 #define _bfd_sparc_elf_local_got_tls_type(abfd) \
521 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
523 #define is_sparc_elf(bfd) \
524 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
525 && elf_tdata (bfd) != NULL \
526 && elf_object_id (bfd) == SPARC_ELF_TDATA)
529 _bfd_sparc_elf_mkobject (bfd
*abfd
)
531 return bfd_elf_allocate_object (abfd
, sizeof (struct _bfd_sparc_elf_obj_tdata
),
536 sparc_put_word_32 (bfd
*bfd
, bfd_vma val
, void *ptr
)
538 bfd_put_32 (bfd
, val
, ptr
);
542 sparc_put_word_64 (bfd
*bfd
, bfd_vma val
, void *ptr
)
544 bfd_put_64 (bfd
, val
, ptr
);
548 sparc_elf_append_rela (bfd
*abfd
, asection
*s
, Elf_Internal_Rela
*rel
)
550 const struct elf_backend_data
*bed
;
553 bed
= get_elf_backend_data (abfd
);
554 loc
= s
->contents
+ (s
->reloc_count
++ * bed
->s
->sizeof_rela
);
555 bed
->s
->swap_reloca_out (abfd
, rel
, loc
);
559 sparc_elf_r_info_64 (Elf_Internal_Rela
*in_rel ATTRIBUTE_UNUSED
,
560 bfd_vma index ATTRIBUTE_UNUSED
,
561 bfd_vma type ATTRIBUTE_UNUSED
)
563 return ELF64_R_INFO (index
,
565 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel
->r_info
),
570 sparc_elf_r_info_32 (Elf_Internal_Rela
*in_rel ATTRIBUTE_UNUSED
,
571 bfd_vma index
, bfd_vma type
)
573 return ELF32_R_INFO (index
, type
);
577 sparc_elf_r_symndx_64 (bfd_vma r_info
)
579 bfd_vma r_symndx
= ELF32_R_SYM (r_info
);
580 return (r_symndx
>> 24);
584 sparc_elf_r_symndx_32 (bfd_vma r_info
)
586 return ELF32_R_SYM (r_info
);
591 #define PLT32_ENTRY_SIZE 12
592 #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
594 /* The first four entries in a 32-bit procedure linkage table are reserved,
595 and the initial contents are unimportant (we zero them out).
596 Subsequent entries look like this. See the SVR4 ABI SPARC
597 supplement to see how this works. */
599 /* sethi %hi(.-.plt0),%g1. We fill in the address later. */
600 #define PLT32_ENTRY_WORD0 0x03000000
601 /* b,a .plt0. We fill in the offset later. */
602 #define PLT32_ENTRY_WORD1 0x30800000
604 #define PLT32_ENTRY_WORD2 SPARC_NOP
607 sparc32_plt_entry_build (bfd
*output_bfd
, asection
*splt
, bfd_vma offset
,
608 bfd_vma max ATTRIBUTE_UNUSED
,
611 bfd_put_32 (output_bfd
,
612 PLT32_ENTRY_WORD0
+ offset
,
613 splt
->contents
+ offset
);
614 bfd_put_32 (output_bfd
,
616 + (((- (offset
+ 4)) >> 2) & 0x3fffff)),
617 splt
->contents
+ offset
+ 4);
618 bfd_put_32 (output_bfd
, (bfd_vma
) PLT32_ENTRY_WORD2
,
619 splt
->contents
+ offset
+ 8);
623 return offset
/ PLT32_ENTRY_SIZE
- 4;
626 /* Both the headers and the entries are icache aligned. */
627 #define PLT64_ENTRY_SIZE 32
628 #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
629 #define PLT64_LARGE_THRESHOLD 32768
632 sparc64_plt_entry_build (bfd
*output_bfd
, asection
*splt
, bfd_vma offset
,
633 bfd_vma max
, bfd_vma
*r_offset
)
635 unsigned char *entry
= splt
->contents
+ offset
;
636 const unsigned int nop
= SPARC_NOP
;
639 if (offset
< (PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
))
641 unsigned int sethi
, ba
;
645 index
= (offset
/ PLT64_ENTRY_SIZE
);
647 sethi
= 0x03000000 | (index
* PLT64_ENTRY_SIZE
);
649 | (((splt
->contents
+ PLT64_ENTRY_SIZE
) - (entry
+ 4)) / 4 & 0x7ffff);
651 bfd_put_32 (output_bfd
, (bfd_vma
) sethi
, entry
);
652 bfd_put_32 (output_bfd
, (bfd_vma
) ba
, entry
+ 4);
653 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 8);
654 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 12);
655 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 16);
656 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 20);
657 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 24);
658 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 28);
664 int block
, last_block
, ofs
, last_ofs
, chunks_this_block
;
665 const int insn_chunk_size
= (6 * 4);
666 const int ptr_chunk_size
= (1 * 8);
667 const int entries_per_block
= 160;
668 const int block_size
= entries_per_block
* (insn_chunk_size
671 /* Entries 32768 and higher are grouped into blocks of 160.
672 The blocks are further subdivided into 160 sequences of
673 6 instructions and 160 pointers. If a block does not require
674 the full 160 entries, let's say it requires N, then there
675 will be N sequences of 6 instructions and N pointers. */
677 offset
-= (PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
);
678 max
-= (PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
);
680 block
= offset
/ block_size
;
681 last_block
= max
/ block_size
;
682 if (block
!= last_block
)
684 chunks_this_block
= 160;
688 last_ofs
= max
% block_size
;
689 chunks_this_block
= last_ofs
/ (insn_chunk_size
+ ptr_chunk_size
);
692 ofs
= offset
% block_size
;
694 index
= (PLT64_LARGE_THRESHOLD
+
696 (ofs
/ insn_chunk_size
));
699 + (PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
)
700 + (block
* block_size
)
701 + (chunks_this_block
* insn_chunk_size
)
702 + (ofs
/ insn_chunk_size
) * ptr_chunk_size
;
704 *r_offset
= (bfd_vma
) (ptr
- splt
->contents
);
706 ldx
= 0xc25be000 | ((ptr
- (entry
+4)) & 0x1fff);
714 bfd_put_32 (output_bfd
, (bfd_vma
) 0x8a10000f, entry
);
715 bfd_put_32 (output_bfd
, (bfd_vma
) 0x40000002, entry
+ 4);
716 bfd_put_32 (output_bfd
, (bfd_vma
) SPARC_NOP
, entry
+ 8);
717 bfd_put_32 (output_bfd
, (bfd_vma
) ldx
, entry
+ 12);
718 bfd_put_32 (output_bfd
, (bfd_vma
) 0x83c3c001, entry
+ 16);
719 bfd_put_32 (output_bfd
, (bfd_vma
) 0x9e100005, entry
+ 20);
721 bfd_put_64 (output_bfd
, (bfd_vma
) (splt
->contents
- (entry
+ 4)), ptr
);
727 /* The format of the first PLT entry in a VxWorks executable. */
728 static const bfd_vma sparc_vxworks_exec_plt0_entry
[] =
730 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
731 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
732 0xc4008000, /* ld [ %g2 ], %g2 */
733 0x81c08000, /* jmp %g2 */
737 /* The format of subsequent PLT entries. */
738 static const bfd_vma sparc_vxworks_exec_plt_entry
[] =
740 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
741 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
742 0xc2004000, /* ld [ %g1 ], %g1 */
743 0x81c04000, /* jmp %g1 */
744 0x01000000, /* nop */
745 0x03000000, /* sethi %hi(f@pltindex), %g1 */
746 0x10800000, /* b _PLT_resolve */
747 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
750 /* The format of the first PLT entry in a VxWorks shared object. */
751 static const bfd_vma sparc_vxworks_shared_plt0_entry
[] =
753 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
754 0x81c08000, /* jmp %g2 */
758 /* The format of subsequent PLT entries. */
759 static const bfd_vma sparc_vxworks_shared_plt_entry
[] =
761 0x03000000, /* sethi %hi(f@got), %g1 */
762 0x82106000, /* or %g1, %lo(f@got), %g1 */
763 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
764 0x81c04000, /* jmp %g1 */
765 0x01000000, /* nop */
766 0x03000000, /* sethi %hi(f@pltindex), %g1 */
767 0x10800000, /* b _PLT_resolve */
768 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
771 #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
772 htab->put_word(bfd, val, ptr)
774 #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
775 htab->r_info(in_rel, index, type)
777 #define SPARC_ELF_R_SYMNDX(htab, r_info) \
778 htab->r_symndx(r_info)
780 #define SPARC_ELF_WORD_BYTES(htab) \
783 #define SPARC_ELF_RELA_BYTES(htab) \
786 #define SPARC_ELF_DTPOFF_RELOC(htab) \
789 #define SPARC_ELF_DTPMOD_RELOC(htab) \
792 #define SPARC_ELF_TPOFF_RELOC(htab) \
795 #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
796 htab->build_plt_entry (obfd, splt, off, max, r_off)
798 /* Create an entry in an SPARC ELF linker hash table. */
800 static struct bfd_hash_entry
*
801 link_hash_newfunc (struct bfd_hash_entry
*entry
,
802 struct bfd_hash_table
*table
, const char *string
)
804 /* Allocate the structure if it has not already been allocated by a
808 entry
= bfd_hash_allocate (table
,
809 sizeof (struct _bfd_sparc_elf_link_hash_entry
));
814 /* Call the allocation method of the superclass. */
815 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
818 struct _bfd_sparc_elf_link_hash_entry
*eh
;
820 eh
= (struct _bfd_sparc_elf_link_hash_entry
*) entry
;
821 eh
->dyn_relocs
= NULL
;
822 eh
->tls_type
= GOT_UNKNOWN
;
828 /* The name of the dynamic interpreter. This is put in the .interp
831 #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
832 #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
834 /* Create a SPARC ELF linker hash table. */
836 struct bfd_link_hash_table
*
837 _bfd_sparc_elf_link_hash_table_create (bfd
*abfd
)
839 struct _bfd_sparc_elf_link_hash_table
*ret
;
840 bfd_size_type amt
= sizeof (struct _bfd_sparc_elf_link_hash_table
);
842 ret
= (struct _bfd_sparc_elf_link_hash_table
*) bfd_zmalloc (amt
);
848 ret
->put_word
= sparc_put_word_64
;
849 ret
->r_info
= sparc_elf_r_info_64
;
850 ret
->r_symndx
= sparc_elf_r_symndx_64
;
851 ret
->dtpoff_reloc
= R_SPARC_TLS_DTPOFF64
;
852 ret
->dtpmod_reloc
= R_SPARC_TLS_DTPMOD64
;
853 ret
->tpoff_reloc
= R_SPARC_TLS_TPOFF64
;
854 ret
->word_align_power
= 3;
855 ret
->align_power_max
= 4;
856 ret
->bytes_per_word
= 8;
857 ret
->bytes_per_rela
= sizeof (Elf64_External_Rela
);
858 ret
->dynamic_interpreter
= ELF64_DYNAMIC_INTERPRETER
;
859 ret
->dynamic_interpreter_size
= sizeof ELF64_DYNAMIC_INTERPRETER
;
863 ret
->put_word
= sparc_put_word_32
;
864 ret
->r_info
= sparc_elf_r_info_32
;
865 ret
->r_symndx
= sparc_elf_r_symndx_32
;
866 ret
->dtpoff_reloc
= R_SPARC_TLS_DTPOFF32
;
867 ret
->dtpmod_reloc
= R_SPARC_TLS_DTPMOD32
;
868 ret
->tpoff_reloc
= R_SPARC_TLS_TPOFF32
;
869 ret
->word_align_power
= 2;
870 ret
->align_power_max
= 3;
871 ret
->bytes_per_word
= 4;
872 ret
->bytes_per_rela
= sizeof (Elf32_External_Rela
);
873 ret
->dynamic_interpreter
= ELF32_DYNAMIC_INTERPRETER
;
874 ret
->dynamic_interpreter_size
= sizeof ELF32_DYNAMIC_INTERPRETER
;
877 if (!_bfd_elf_link_hash_table_init (&ret
->elf
, abfd
, link_hash_newfunc
,
878 sizeof (struct _bfd_sparc_elf_link_hash_entry
)))
884 return &ret
->elf
.root
;
887 /* Create .got and .rela.got sections in DYNOBJ, and set up
888 shortcuts to them in our hash table. */
891 create_got_section (bfd
*dynobj
, struct bfd_link_info
*info
)
893 struct _bfd_sparc_elf_link_hash_table
*htab
;
895 if (! _bfd_elf_create_got_section (dynobj
, info
))
898 htab
= _bfd_sparc_elf_hash_table (info
);
899 htab
->sgot
= bfd_get_section_by_name (dynobj
, ".got");
900 BFD_ASSERT (htab
->sgot
!= NULL
);
902 htab
->srelgot
= bfd_make_section_with_flags (dynobj
, ".rela.got",
909 if (htab
->srelgot
== NULL
910 || ! bfd_set_section_alignment (dynobj
, htab
->srelgot
,
911 htab
->word_align_power
))
914 if (htab
->is_vxworks
)
916 htab
->sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
924 /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
925 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
929 _bfd_sparc_elf_create_dynamic_sections (bfd
*dynobj
,
930 struct bfd_link_info
*info
)
932 struct _bfd_sparc_elf_link_hash_table
*htab
;
934 htab
= _bfd_sparc_elf_hash_table (info
);
935 if (!htab
->sgot
&& !create_got_section (dynobj
, info
))
938 if (!_bfd_elf_create_dynamic_sections (dynobj
, info
))
941 htab
->splt
= bfd_get_section_by_name (dynobj
, ".plt");
942 htab
->srelplt
= bfd_get_section_by_name (dynobj
, ".rela.plt");
943 htab
->sdynbss
= bfd_get_section_by_name (dynobj
, ".dynbss");
945 htab
->srelbss
= bfd_get_section_by_name (dynobj
, ".rela.bss");
947 if (htab
->is_vxworks
)
949 if (!elf_vxworks_create_dynamic_sections (dynobj
, info
, &htab
->srelplt2
))
953 htab
->plt_header_size
954 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry
);
956 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry
);
960 htab
->plt_header_size
961 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry
);
963 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry
);
968 if (ABI_64_P (dynobj
))
970 htab
->build_plt_entry
= sparc64_plt_entry_build
;
971 htab
->plt_header_size
= PLT64_HEADER_SIZE
;
972 htab
->plt_entry_size
= PLT64_ENTRY_SIZE
;
976 htab
->build_plt_entry
= sparc32_plt_entry_build
;
977 htab
->plt_header_size
= PLT32_HEADER_SIZE
;
978 htab
->plt_entry_size
= PLT32_ENTRY_SIZE
;
982 if (!htab
->splt
|| !htab
->srelplt
|| !htab
->sdynbss
983 || (!info
->shared
&& !htab
->srelbss
))
989 /* Copy the extra info we tack onto an elf_link_hash_entry. */
992 _bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
993 struct elf_link_hash_entry
*dir
,
994 struct elf_link_hash_entry
*ind
)
996 struct _bfd_sparc_elf_link_hash_entry
*edir
, *eind
;
998 edir
= (struct _bfd_sparc_elf_link_hash_entry
*) dir
;
999 eind
= (struct _bfd_sparc_elf_link_hash_entry
*) ind
;
1001 if (eind
->dyn_relocs
!= NULL
)
1003 if (edir
->dyn_relocs
!= NULL
)
1005 struct _bfd_sparc_elf_dyn_relocs
**pp
;
1006 struct _bfd_sparc_elf_dyn_relocs
*p
;
1008 /* Add reloc counts against the indirect sym to the direct sym
1009 list. Merge any entries against the same section. */
1010 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
; )
1012 struct _bfd_sparc_elf_dyn_relocs
*q
;
1014 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
1015 if (q
->sec
== p
->sec
)
1017 q
->pc_count
+= p
->pc_count
;
1018 q
->count
+= p
->count
;
1025 *pp
= edir
->dyn_relocs
;
1028 edir
->dyn_relocs
= eind
->dyn_relocs
;
1029 eind
->dyn_relocs
= NULL
;
1032 if (ind
->root
.type
== bfd_link_hash_indirect
1033 && dir
->got
.refcount
<= 0)
1035 edir
->tls_type
= eind
->tls_type
;
1036 eind
->tls_type
= GOT_UNKNOWN
;
1038 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
1042 sparc_elf_tls_transition (struct bfd_link_info
*info
, bfd
*abfd
,
1043 int r_type
, int is_local
)
1045 if (! ABI_64_P (abfd
)
1046 && r_type
== R_SPARC_TLS_GD_HI22
1047 && ! _bfd_sparc_elf_tdata (abfd
)->has_tlsgd
)
1048 r_type
= R_SPARC_REV32
;
1055 case R_SPARC_TLS_GD_HI22
:
1057 return R_SPARC_TLS_LE_HIX22
;
1058 return R_SPARC_TLS_IE_HI22
;
1059 case R_SPARC_TLS_GD_LO10
:
1061 return R_SPARC_TLS_LE_LOX10
;
1062 return R_SPARC_TLS_IE_LO10
;
1063 case R_SPARC_TLS_IE_HI22
:
1065 return R_SPARC_TLS_LE_HIX22
;
1067 case R_SPARC_TLS_IE_LO10
:
1069 return R_SPARC_TLS_LE_LOX10
;
1071 case R_SPARC_TLS_LDM_HI22
:
1072 return R_SPARC_TLS_LE_HIX22
;
1073 case R_SPARC_TLS_LDM_LO10
:
1074 return R_SPARC_TLS_LE_LOX10
;
1080 /* Look through the relocs for a section during the first phase, and
1081 allocate space in the global offset table or procedure linkage
1085 _bfd_sparc_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
1086 asection
*sec
, const Elf_Internal_Rela
*relocs
)
1088 struct _bfd_sparc_elf_link_hash_table
*htab
;
1089 Elf_Internal_Shdr
*symtab_hdr
;
1090 struct elf_link_hash_entry
**sym_hashes
;
1091 bfd_vma
*local_got_offsets
;
1092 const Elf_Internal_Rela
*rel
;
1093 const Elf_Internal_Rela
*rel_end
;
1096 bfd_boolean checked_tlsgd
= FALSE
;
1098 if (info
->relocatable
)
1101 htab
= _bfd_sparc_elf_hash_table (info
);
1102 symtab_hdr
= &elf_symtab_hdr (abfd
);
1103 sym_hashes
= elf_sym_hashes (abfd
);
1104 local_got_offsets
= elf_local_got_offsets (abfd
);
1108 if (ABI_64_P (abfd
))
1109 num_relocs
= NUM_SHDR_ENTRIES (& elf_section_data (sec
)->rel_hdr
);
1111 num_relocs
= sec
->reloc_count
;
1113 BFD_ASSERT (is_sparc_elf (abfd
) || num_relocs
== 0);
1115 rel_end
= relocs
+ num_relocs
;
1116 for (rel
= relocs
; rel
< rel_end
; rel
++)
1118 unsigned int r_type
;
1119 unsigned long r_symndx
;
1120 struct elf_link_hash_entry
*h
;
1122 r_symndx
= SPARC_ELF_R_SYMNDX (htab
, rel
->r_info
);
1123 r_type
= SPARC_ELF_R_TYPE (rel
->r_info
);
1125 if (r_symndx
>= NUM_SHDR_ENTRIES (symtab_hdr
))
1127 (*_bfd_error_handler
) (_("%B: bad symbol index: %d"),
1132 if (r_symndx
< symtab_hdr
->sh_info
)
1136 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
1137 while (h
->root
.type
== bfd_link_hash_indirect
1138 || h
->root
.type
== bfd_link_hash_warning
)
1139 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1142 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1143 with R_SPARC_TLS_GD_HI22. */
1144 if (! ABI_64_P (abfd
) && ! checked_tlsgd
)
1147 case R_SPARC_TLS_GD_HI22
:
1149 const Elf_Internal_Rela
*relt
;
1151 for (relt
= rel
+ 1; relt
< rel_end
; relt
++)
1152 if (ELF32_R_TYPE (relt
->r_info
) == R_SPARC_TLS_GD_LO10
1153 || ELF32_R_TYPE (relt
->r_info
) == R_SPARC_TLS_GD_ADD
1154 || ELF32_R_TYPE (relt
->r_info
) == R_SPARC_TLS_GD_CALL
)
1156 checked_tlsgd
= TRUE
;
1157 _bfd_sparc_elf_tdata (abfd
)->has_tlsgd
= relt
< rel_end
;
1160 case R_SPARC_TLS_GD_LO10
:
1161 case R_SPARC_TLS_GD_ADD
:
1162 case R_SPARC_TLS_GD_CALL
:
1163 checked_tlsgd
= TRUE
;
1164 _bfd_sparc_elf_tdata (abfd
)->has_tlsgd
= TRUE
;
1168 r_type
= sparc_elf_tls_transition (info
, abfd
, r_type
, h
== NULL
);
1171 case R_SPARC_TLS_LDM_HI22
:
1172 case R_SPARC_TLS_LDM_LO10
:
1173 htab
->tls_ldm_got
.refcount
+= 1;
1176 case R_SPARC_TLS_LE_HIX22
:
1177 case R_SPARC_TLS_LE_LOX10
:
1182 case R_SPARC_TLS_IE_HI22
:
1183 case R_SPARC_TLS_IE_LO10
:
1185 info
->flags
|= DF_STATIC_TLS
;
1191 case R_SPARC_GOTDATA_HIX22
:
1192 case R_SPARC_GOTDATA_LOX10
:
1193 case R_SPARC_GOTDATA_OP_HIX22
:
1194 case R_SPARC_GOTDATA_OP_LOX10
:
1195 case R_SPARC_TLS_GD_HI22
:
1196 case R_SPARC_TLS_GD_LO10
:
1197 /* This symbol requires a global offset table entry. */
1199 int tls_type
, old_tls_type
;
1207 case R_SPARC_GOTDATA_HIX22
:
1208 case R_SPARC_GOTDATA_LOX10
:
1209 case R_SPARC_GOTDATA_OP_HIX22
:
1210 case R_SPARC_GOTDATA_OP_LOX10
:
1211 tls_type
= GOT_NORMAL
;
1213 case R_SPARC_TLS_GD_HI22
:
1214 case R_SPARC_TLS_GD_LO10
:
1215 tls_type
= GOT_TLS_GD
;
1217 case R_SPARC_TLS_IE_HI22
:
1218 case R_SPARC_TLS_IE_LO10
:
1219 tls_type
= GOT_TLS_IE
;
1225 h
->got
.refcount
+= 1;
1226 old_tls_type
= _bfd_sparc_elf_hash_entry(h
)->tls_type
;
1230 bfd_signed_vma
*local_got_refcounts
;
1232 /* This is a global offset table entry for a local symbol. */
1233 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1234 if (local_got_refcounts
== NULL
)
1238 size
= symtab_hdr
->sh_info
;
1239 size
*= (sizeof (bfd_signed_vma
) + sizeof(char));
1240 local_got_refcounts
= ((bfd_signed_vma
*)
1241 bfd_zalloc (abfd
, size
));
1242 if (local_got_refcounts
== NULL
)
1244 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
1245 _bfd_sparc_elf_local_got_tls_type (abfd
)
1246 = (char *) (local_got_refcounts
+ symtab_hdr
->sh_info
);
1248 local_got_refcounts
[r_symndx
] += 1;
1249 old_tls_type
= _bfd_sparc_elf_local_got_tls_type (abfd
) [r_symndx
];
1252 /* If a TLS symbol is accessed using IE at least once,
1253 there is no point to use dynamic model for it. */
1254 if (old_tls_type
!= tls_type
&& old_tls_type
!= GOT_UNKNOWN
1255 && (old_tls_type
!= GOT_TLS_GD
1256 || tls_type
!= GOT_TLS_IE
))
1258 if (old_tls_type
== GOT_TLS_IE
&& tls_type
== GOT_TLS_GD
)
1259 tls_type
= old_tls_type
;
1262 (*_bfd_error_handler
)
1263 (_("%B: `%s' accessed both as normal and thread local symbol"),
1264 abfd
, h
? h
->root
.root
.string
: "<local>");
1269 if (old_tls_type
!= tls_type
)
1272 _bfd_sparc_elf_hash_entry (h
)->tls_type
= tls_type
;
1274 _bfd_sparc_elf_local_got_tls_type (abfd
) [r_symndx
] = tls_type
;
1278 if (htab
->sgot
== NULL
)
1280 if (htab
->elf
.dynobj
== NULL
)
1281 htab
->elf
.dynobj
= abfd
;
1282 if (!create_got_section (htab
->elf
.dynobj
, info
))
1287 case R_SPARC_TLS_GD_CALL
:
1288 case R_SPARC_TLS_LDM_CALL
:
1291 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1293 struct bfd_link_hash_entry
*bh
= NULL
;
1294 if (! _bfd_generic_link_add_one_symbol (info
, abfd
,
1295 "__tls_get_addr", 0,
1296 bfd_und_section_ptr
, 0,
1300 h
= (struct elf_link_hash_entry
*) bh
;
1307 case R_SPARC_WPLT30
:
1308 case R_SPARC_HIPLT22
:
1309 case R_SPARC_LOPLT10
:
1310 case R_SPARC_PCPLT32
:
1311 case R_SPARC_PCPLT22
:
1312 case R_SPARC_PCPLT10
:
1314 /* This symbol requires a procedure linkage table entry. We
1315 actually build the entry in adjust_dynamic_symbol,
1316 because this might be a case of linking PIC code without
1317 linking in any dynamic objects, in which case we don't
1318 need to generate a procedure linkage table after all. */
1322 if (! ABI_64_P (abfd
))
1324 /* The Solaris native assembler will generate a WPLT30
1325 reloc for a local symbol if you assemble a call from
1326 one section to another when using -K pic. We treat
1328 if (ELF32_R_TYPE (rel
->r_info
) == R_SPARC_PLT32
)
1332 /* PR 7027: We need similar behaviour for 64-bit binaries. */
1333 else if (r_type
== R_SPARC_WPLT30
)
1336 /* It does not make sense to have a procedure linkage
1337 table entry for a local symbol. */
1338 bfd_set_error (bfd_error_bad_value
);
1347 this_r_type
= SPARC_ELF_R_TYPE (rel
->r_info
);
1348 if (this_r_type
== R_SPARC_PLT32
1349 || this_r_type
== R_SPARC_PLT64
)
1352 h
->plt
.refcount
+= 1;
1357 case R_SPARC_PC_HH22
:
1358 case R_SPARC_PC_HM10
:
1359 case R_SPARC_PC_LM22
:
1364 && strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
1369 case R_SPARC_DISP16
:
1370 case R_SPARC_DISP32
:
1371 case R_SPARC_DISP64
:
1372 case R_SPARC_WDISP30
:
1373 case R_SPARC_WDISP22
:
1374 case R_SPARC_WDISP19
:
1375 case R_SPARC_WDISP16
:
1405 if (h
!= NULL
&& !info
->shared
)
1407 /* We may need a .plt entry if the function this reloc
1408 refers to is in a shared lib. */
1409 h
->plt
.refcount
+= 1;
1412 /* If we are creating a shared library, and this is a reloc
1413 against a global symbol, or a non PC relative reloc
1414 against a local symbol, then we need to copy the reloc
1415 into the shared library. However, if we are linking with
1416 -Bsymbolic, we do not need to copy a reloc against a
1417 global symbol which is defined in an object we are
1418 including in the link (i.e., DEF_REGULAR is set). At
1419 this point we have not seen all the input files, so it is
1420 possible that DEF_REGULAR is not set now but will be set
1421 later (it is never cleared). In case of a weak definition,
1422 DEF_REGULAR may be cleared later by a strong definition in
1423 a shared library. We account for that possibility below by
1424 storing information in the relocs_copied field of the hash
1425 table entry. A similar situation occurs when creating
1426 shared libraries and symbol visibility changes render the
1429 If on the other hand, we are creating an executable, we
1430 may need to keep relocations for symbols satisfied by a
1431 dynamic library if we manage to avoid copy relocs for the
1434 && (sec
->flags
& SEC_ALLOC
) != 0
1435 && (! _bfd_sparc_elf_howto_table
[r_type
].pc_relative
1437 && (! info
->symbolic
1438 || h
->root
.type
== bfd_link_hash_defweak
1439 || !h
->def_regular
))))
1441 && (sec
->flags
& SEC_ALLOC
) != 0
1443 && (h
->root
.type
== bfd_link_hash_defweak
1444 || !h
->def_regular
)))
1446 struct _bfd_sparc_elf_dyn_relocs
*p
;
1447 struct _bfd_sparc_elf_dyn_relocs
**head
;
1449 /* When creating a shared object, we must copy these
1450 relocs into the output file. We create a reloc
1451 section in dynobj and make room for the reloc. */
1457 name
= (bfd_elf_string_from_elf_section
1459 elf_elfheader (abfd
)->e_shstrndx
,
1460 elf_section_data (sec
)->rel_hdr
.sh_name
));
1464 BFD_ASSERT (CONST_STRNEQ (name
, ".rela")
1465 && strcmp (bfd_get_section_name (abfd
, sec
),
1468 if (htab
->elf
.dynobj
== NULL
)
1469 htab
->elf
.dynobj
= abfd
;
1470 dynobj
= htab
->elf
.dynobj
;
1472 sreloc
= bfd_get_section_by_name (dynobj
, name
);
1477 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
1478 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
1479 if ((sec
->flags
& SEC_ALLOC
) != 0)
1480 flags
|= SEC_ALLOC
| SEC_LOAD
;
1481 sreloc
= bfd_make_section_with_flags (dynobj
,
1485 || ! bfd_set_section_alignment (dynobj
, sreloc
,
1486 htab
->word_align_power
))
1489 elf_section_data (sec
)->sreloc
= sreloc
;
1492 /* If this is a global symbol, we count the number of
1493 relocations we need for this symbol. */
1495 head
= &((struct _bfd_sparc_elf_link_hash_entry
*) h
)->dyn_relocs
;
1498 /* Track dynamic relocs needed for local syms too.
1499 We really need local syms available to do this
1505 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
,
1510 vpp
= &elf_section_data (s
)->local_dynrel
;
1511 head
= (struct _bfd_sparc_elf_dyn_relocs
**) vpp
;
1515 if (p
== NULL
|| p
->sec
!= sec
)
1517 bfd_size_type amt
= sizeof *p
;
1518 p
= ((struct _bfd_sparc_elf_dyn_relocs
*)
1519 bfd_alloc (htab
->elf
.dynobj
, amt
));
1530 if (_bfd_sparc_elf_howto_table
[r_type
].pc_relative
)
1536 case R_SPARC_GNU_VTINHERIT
:
1537 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
1541 case R_SPARC_GNU_VTENTRY
:
1542 BFD_ASSERT (h
!= NULL
);
1544 && !bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
1548 case R_SPARC_REGISTER
:
1549 /* Nothing to do. */
1561 _bfd_sparc_elf_gc_mark_hook (asection
*sec
,
1562 struct bfd_link_info
*info
,
1563 Elf_Internal_Rela
*rel
,
1564 struct elf_link_hash_entry
*h
,
1565 Elf_Internal_Sym
*sym
)
1568 switch (SPARC_ELF_R_TYPE (rel
->r_info
))
1570 case R_SPARC_GNU_VTINHERIT
:
1571 case R_SPARC_GNU_VTENTRY
:
1575 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
1578 /* Update the got entry reference counts for the section being removed. */
1580 _bfd_sparc_elf_gc_sweep_hook (bfd
*abfd
, struct bfd_link_info
*info
,
1581 asection
*sec
, const Elf_Internal_Rela
*relocs
)
1583 struct _bfd_sparc_elf_link_hash_table
*htab
;
1584 Elf_Internal_Shdr
*symtab_hdr
;
1585 struct elf_link_hash_entry
**sym_hashes
;
1586 bfd_signed_vma
*local_got_refcounts
;
1587 const Elf_Internal_Rela
*rel
, *relend
;
1589 if (info
->relocatable
)
1592 BFD_ASSERT (is_sparc_elf (abfd
) || sec
->reloc_count
== 0);
1594 elf_section_data (sec
)->local_dynrel
= NULL
;
1596 htab
= _bfd_sparc_elf_hash_table (info
);
1597 symtab_hdr
= &elf_symtab_hdr (abfd
);
1598 sym_hashes
= elf_sym_hashes (abfd
);
1599 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1601 relend
= relocs
+ sec
->reloc_count
;
1602 for (rel
= relocs
; rel
< relend
; rel
++)
1604 unsigned long r_symndx
;
1605 unsigned int r_type
;
1606 struct elf_link_hash_entry
*h
= NULL
;
1608 r_symndx
= SPARC_ELF_R_SYMNDX (htab
, rel
->r_info
);
1609 if (r_symndx
>= symtab_hdr
->sh_info
)
1611 struct _bfd_sparc_elf_link_hash_entry
*eh
;
1612 struct _bfd_sparc_elf_dyn_relocs
**pp
;
1613 struct _bfd_sparc_elf_dyn_relocs
*p
;
1615 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
1616 while (h
->root
.type
== bfd_link_hash_indirect
1617 || h
->root
.type
== bfd_link_hash_warning
)
1618 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1619 eh
= (struct _bfd_sparc_elf_link_hash_entry
*) h
;
1620 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
1623 /* Everything must go for SEC. */
1629 r_type
= SPARC_ELF_R_TYPE (rel
->r_info
);
1630 r_type
= sparc_elf_tls_transition (info
, abfd
, r_type
, h
!= NULL
);
1633 case R_SPARC_TLS_LDM_HI22
:
1634 case R_SPARC_TLS_LDM_LO10
:
1635 if (_bfd_sparc_elf_hash_table (info
)->tls_ldm_got
.refcount
> 0)
1636 _bfd_sparc_elf_hash_table (info
)->tls_ldm_got
.refcount
-= 1;
1639 case R_SPARC_TLS_GD_HI22
:
1640 case R_SPARC_TLS_GD_LO10
:
1641 case R_SPARC_TLS_IE_HI22
:
1642 case R_SPARC_TLS_IE_LO10
:
1646 case R_SPARC_GOTDATA_HIX22
:
1647 case R_SPARC_GOTDATA_LOX10
:
1648 case R_SPARC_GOTDATA_OP_HIX22
:
1649 case R_SPARC_GOTDATA_OP_LOX10
:
1652 if (h
->got
.refcount
> 0)
1657 if (local_got_refcounts
[r_symndx
] > 0)
1658 local_got_refcounts
[r_symndx
]--;
1664 case R_SPARC_PC_HH22
:
1665 case R_SPARC_PC_HM10
:
1666 case R_SPARC_PC_LM22
:
1668 && strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
1673 case R_SPARC_DISP16
:
1674 case R_SPARC_DISP32
:
1675 case R_SPARC_DISP64
:
1676 case R_SPARC_WDISP30
:
1677 case R_SPARC_WDISP22
:
1678 case R_SPARC_WDISP19
:
1679 case R_SPARC_WDISP16
:
1710 case R_SPARC_WPLT30
:
1713 if (h
->plt
.refcount
> 0)
1726 /* Adjust a symbol defined by a dynamic object and referenced by a
1727 regular object. The current definition is in some section of the
1728 dynamic object, but we're not including those sections. We have to
1729 change the definition to something the rest of the link can
1733 _bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
1734 struct elf_link_hash_entry
*h
)
1736 struct _bfd_sparc_elf_link_hash_table
*htab
;
1737 struct _bfd_sparc_elf_link_hash_entry
* eh
;
1738 struct _bfd_sparc_elf_dyn_relocs
*p
;
1741 htab
= _bfd_sparc_elf_hash_table (info
);
1743 /* Make sure we know what is going on here. */
1744 BFD_ASSERT (htab
->elf
.dynobj
!= NULL
1746 || h
->u
.weakdef
!= NULL
1749 && !h
->def_regular
)));
1751 /* If this is a function, put it in the procedure linkage table. We
1752 will fill in the contents of the procedure linkage table later
1753 (although we could actually do it here). The STT_NOTYPE
1754 condition is a hack specifically for the Oracle libraries
1755 delivered for Solaris; for some inexplicable reason, they define
1756 some of their functions as STT_NOTYPE when they really should be
1758 if (h
->type
== STT_FUNC
1760 || (h
->type
== STT_NOTYPE
1761 && (h
->root
.type
== bfd_link_hash_defined
1762 || h
->root
.type
== bfd_link_hash_defweak
)
1763 && (h
->root
.u
.def
.section
->flags
& SEC_CODE
) != 0))
1765 if (h
->plt
.refcount
<= 0
1769 && h
->root
.type
!= bfd_link_hash_undefweak
1770 && h
->root
.type
!= bfd_link_hash_undefined
))
1772 /* This case can occur if we saw a WPLT30 reloc in an input
1773 file, but the symbol was never referred to by a dynamic
1774 object, or if all references were garbage collected. In
1775 such a case, we don't actually need to build a procedure
1776 linkage table, and we can just do a WDISP30 reloc instead. */
1777 h
->plt
.offset
= (bfd_vma
) -1;
1784 h
->plt
.offset
= (bfd_vma
) -1;
1786 /* If this is a weak symbol, and there is a real definition, the
1787 processor independent code will have arranged for us to see the
1788 real definition first, and we can just use the same value. */
1789 if (h
->u
.weakdef
!= NULL
)
1791 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
1792 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
1793 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
1794 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
1798 /* This is a reference to a symbol defined by a dynamic object which
1799 is not a function. */
1801 /* If we are creating a shared library, we must presume that the
1802 only references to the symbol are via the global offset table.
1803 For such cases we need not do anything here; the relocations will
1804 be handled correctly by relocate_section. */
1808 /* If there are no references to this symbol that do not use the
1809 GOT, we don't need to generate a copy reloc. */
1810 if (!h
->non_got_ref
)
1813 eh
= (struct _bfd_sparc_elf_link_hash_entry
*) h
;
1814 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
1816 s
= p
->sec
->output_section
;
1817 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
1821 /* If we didn't find any dynamic relocs in read-only sections, then
1822 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1831 (*_bfd_error_handler
) (_("dynamic variable `%s' is zero size"),
1832 h
->root
.root
.string
);
1836 /* We must allocate the symbol in our .dynbss section, which will
1837 become part of the .bss section of the executable. There will be
1838 an entry for this symbol in the .dynsym section. The dynamic
1839 object will contain position independent code, so all references
1840 from the dynamic object to this symbol will go through the global
1841 offset table. The dynamic linker will use the .dynsym entry to
1842 determine the address it must put in the global offset table, so
1843 both the dynamic object and the regular object will refer to the
1844 same memory location for the variable. */
1846 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
1847 to copy the initial value out of the dynamic object and into the
1848 runtime process image. We need to remember the offset into the
1849 .rel.bss section we are going to use. */
1850 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
1852 htab
->srelbss
->size
+= SPARC_ELF_RELA_BYTES (htab
);
1858 return _bfd_elf_adjust_dynamic_copy (h
, s
);
1861 /* Allocate space in .plt, .got and associated reloc sections for
1865 allocate_dynrelocs (struct elf_link_hash_entry
*h
, PTR inf
)
1867 struct bfd_link_info
*info
;
1868 struct _bfd_sparc_elf_link_hash_table
*htab
;
1869 struct _bfd_sparc_elf_link_hash_entry
*eh
;
1870 struct _bfd_sparc_elf_dyn_relocs
*p
;
1872 if (h
->root
.type
== bfd_link_hash_indirect
)
1875 if (h
->root
.type
== bfd_link_hash_warning
)
1876 /* When warning symbols are created, they **replace** the "real"
1877 entry in the hash table, thus we never get to see the real
1878 symbol in a hash traversal. So look at it now. */
1879 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1881 info
= (struct bfd_link_info
*) inf
;
1882 htab
= _bfd_sparc_elf_hash_table (info
);
1884 if (htab
->elf
.dynamic_sections_created
1885 && h
->plt
.refcount
> 0)
1887 /* Make sure this symbol is output as a dynamic symbol.
1888 Undefined weak syms won't yet be marked as dynamic. */
1889 if (h
->dynindx
== -1
1890 && !h
->forced_local
)
1892 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1896 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info
->shared
, h
))
1898 asection
*s
= htab
->splt
;
1900 /* Allocate room for the header. */
1903 s
->size
= htab
->plt_header_size
;
1905 /* Allocate space for the .rela.plt.unloaded relocations. */
1906 if (htab
->is_vxworks
&& !info
->shared
)
1907 htab
->srelplt2
->size
= sizeof (Elf32_External_Rela
) * 2;
1910 /* The procedure linkage table size is bounded by the magnitude
1911 of the offset we can describe in the entry. */
1912 if (s
->size
>= (SPARC_ELF_WORD_BYTES(htab
) == 8 ?
1913 (((bfd_vma
)1 << 31) << 1) : 0x400000))
1915 bfd_set_error (bfd_error_bad_value
);
1919 if (SPARC_ELF_WORD_BYTES(htab
) == 8
1920 && s
->size
>= PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
)
1922 bfd_vma off
= s
->size
- PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
;
1925 off
= (off
% (160 * PLT64_ENTRY_SIZE
)) / PLT64_ENTRY_SIZE
;
1927 h
->plt
.offset
= (s
->size
- (off
* 8));
1930 h
->plt
.offset
= s
->size
;
1932 /* If this symbol is not defined in a regular file, and we are
1933 not generating a shared library, then set the symbol to this
1934 location in the .plt. This is required to make function
1935 pointers compare as equal between the normal executable and
1936 the shared library. */
1940 h
->root
.u
.def
.section
= s
;
1941 h
->root
.u
.def
.value
= h
->plt
.offset
;
1944 /* Make room for this entry. */
1945 s
->size
+= htab
->plt_entry_size
;
1947 /* We also need to make an entry in the .rela.plt section. */
1948 htab
->srelplt
->size
+= SPARC_ELF_RELA_BYTES (htab
);
1950 if (htab
->is_vxworks
)
1952 /* Allocate space for the .got.plt entry. */
1953 htab
->sgotplt
->size
+= 4;
1955 /* ...and for the .rela.plt.unloaded relocations. */
1957 htab
->srelplt2
->size
+= sizeof (Elf32_External_Rela
) * 3;
1962 h
->plt
.offset
= (bfd_vma
) -1;
1968 h
->plt
.offset
= (bfd_vma
) -1;
1972 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
1973 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
1974 if (h
->got
.refcount
> 0
1977 && _bfd_sparc_elf_hash_entry(h
)->tls_type
== GOT_TLS_IE
)
1978 h
->got
.offset
= (bfd_vma
) -1;
1979 else if (h
->got
.refcount
> 0)
1983 int tls_type
= _bfd_sparc_elf_hash_entry(h
)->tls_type
;
1985 /* Make sure this symbol is output as a dynamic symbol.
1986 Undefined weak syms won't yet be marked as dynamic. */
1987 if (h
->dynindx
== -1
1988 && !h
->forced_local
)
1990 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1995 h
->got
.offset
= s
->size
;
1996 s
->size
+= SPARC_ELF_WORD_BYTES (htab
);
1997 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
1998 if (tls_type
== GOT_TLS_GD
)
1999 s
->size
+= SPARC_ELF_WORD_BYTES (htab
);
2000 dyn
= htab
->elf
.dynamic_sections_created
;
2001 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
2002 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
2004 if ((tls_type
== GOT_TLS_GD
&& h
->dynindx
== -1)
2005 || tls_type
== GOT_TLS_IE
)
2006 htab
->srelgot
->size
+= SPARC_ELF_RELA_BYTES (htab
);
2007 else if (tls_type
== GOT_TLS_GD
)
2008 htab
->srelgot
->size
+= 2 * SPARC_ELF_RELA_BYTES (htab
);
2009 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
))
2010 htab
->srelgot
->size
+= SPARC_ELF_RELA_BYTES (htab
);
2013 h
->got
.offset
= (bfd_vma
) -1;
2015 eh
= (struct _bfd_sparc_elf_link_hash_entry
*) h
;
2016 if (eh
->dyn_relocs
== NULL
)
2019 /* In the shared -Bsymbolic case, discard space allocated for
2020 dynamic pc-relative relocs against symbols which turn out to be
2021 defined in regular objects. For the normal shared case, discard
2022 space for pc-relative relocs that have become local due to symbol
2023 visibility changes. */
2031 struct _bfd_sparc_elf_dyn_relocs
**pp
;
2033 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
2035 p
->count
-= p
->pc_count
;
2044 if (htab
->is_vxworks
)
2046 struct _bfd_sparc_elf_dyn_relocs
**pp
;
2048 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
2050 if (strcmp (p
->sec
->output_section
->name
, ".tls_vars") == 0)
2057 /* Also discard relocs on undefined weak syms with non-default
2059 if (eh
->dyn_relocs
!= NULL
2060 && h
->root
.type
== bfd_link_hash_undefweak
)
2062 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
2063 eh
->dyn_relocs
= NULL
;
2065 /* Make sure undefined weak symbols are output as a dynamic
2067 else if (h
->dynindx
== -1
2068 && !h
->forced_local
)
2070 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2077 /* For the non-shared case, discard space for relocs against
2078 symbols which turn out to need copy relocs or are not
2084 || (htab
->elf
.dynamic_sections_created
2085 && (h
->root
.type
== bfd_link_hash_undefweak
2086 || h
->root
.type
== bfd_link_hash_undefined
))))
2088 /* Make sure this symbol is output as a dynamic symbol.
2089 Undefined weak syms won't yet be marked as dynamic. */
2090 if (h
->dynindx
== -1
2091 && !h
->forced_local
)
2093 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2097 /* If that succeeded, we know we'll be keeping all the
2099 if (h
->dynindx
!= -1)
2103 eh
->dyn_relocs
= NULL
;
2108 /* Finally, allocate space. */
2109 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2111 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
2112 sreloc
->size
+= p
->count
* SPARC_ELF_RELA_BYTES (htab
);
2118 /* Find any dynamic relocs that apply to read-only sections. */
2121 readonly_dynrelocs (struct elf_link_hash_entry
*h
, PTR inf
)
2123 struct _bfd_sparc_elf_link_hash_entry
*eh
;
2124 struct _bfd_sparc_elf_dyn_relocs
*p
;
2126 if (h
->root
.type
== bfd_link_hash_warning
)
2127 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2129 eh
= (struct _bfd_sparc_elf_link_hash_entry
*) h
;
2130 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2132 asection
*s
= p
->sec
->output_section
;
2134 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
2136 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
2138 info
->flags
|= DF_TEXTREL
;
2140 /* Not an error, just cut short the traversal. */
2147 /* Return true if the dynamic symbol for a given section should be
2148 omitted when creating a shared library. */
2151 _bfd_sparc_elf_omit_section_dynsym (bfd
*output_bfd
,
2152 struct bfd_link_info
*info
,
2155 /* We keep the .got section symbol so that explicit relocations
2156 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2157 can be turned into relocations against the .got symbol. */
2158 if (strcmp (p
->name
, ".got") == 0)
2161 return _bfd_elf_link_omit_section_dynsym (output_bfd
, info
, p
);
2164 /* Set the sizes of the dynamic sections. */
2167 _bfd_sparc_elf_size_dynamic_sections (bfd
*output_bfd
,
2168 struct bfd_link_info
*info
)
2170 struct _bfd_sparc_elf_link_hash_table
*htab
;
2175 htab
= _bfd_sparc_elf_hash_table (info
);
2176 dynobj
= htab
->elf
.dynobj
;
2177 BFD_ASSERT (dynobj
!= NULL
);
2179 if (elf_hash_table (info
)->dynamic_sections_created
)
2181 /* Set the contents of the .interp section to the interpreter. */
2182 if (info
->executable
)
2184 s
= bfd_get_section_by_name (dynobj
, ".interp");
2185 BFD_ASSERT (s
!= NULL
);
2186 s
->size
= htab
->dynamic_interpreter_size
;
2187 s
->contents
= (unsigned char *) htab
->dynamic_interpreter
;
2191 /* Set up .got offsets for local syms, and space for local dynamic
2193 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
2195 bfd_signed_vma
*local_got
;
2196 bfd_signed_vma
*end_local_got
;
2197 char *local_tls_type
;
2198 bfd_size_type locsymcount
;
2199 Elf_Internal_Shdr
*symtab_hdr
;
2202 if (! is_sparc_elf (ibfd
))
2205 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
2207 struct _bfd_sparc_elf_dyn_relocs
*p
;
2209 for (p
= elf_section_data (s
)->local_dynrel
; p
!= NULL
; p
= p
->next
)
2211 if (!bfd_is_abs_section (p
->sec
)
2212 && bfd_is_abs_section (p
->sec
->output_section
))
2214 /* Input section has been discarded, either because
2215 it is a copy of a linkonce section or due to
2216 linker script /DISCARD/, so we'll be discarding
2219 else if (htab
->is_vxworks
2220 && strcmp (p
->sec
->output_section
->name
,
2223 /* Relocations in vxworks .tls_vars sections are
2224 handled specially by the loader. */
2226 else if (p
->count
!= 0)
2228 srel
= elf_section_data (p
->sec
)->sreloc
;
2229 srel
->size
+= p
->count
* SPARC_ELF_RELA_BYTES (htab
);
2230 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2231 info
->flags
|= DF_TEXTREL
;
2236 local_got
= elf_local_got_refcounts (ibfd
);
2240 symtab_hdr
= &elf_symtab_hdr (ibfd
);
2241 locsymcount
= symtab_hdr
->sh_info
;
2242 end_local_got
= local_got
+ locsymcount
;
2243 local_tls_type
= _bfd_sparc_elf_local_got_tls_type (ibfd
);
2245 srel
= htab
->srelgot
;
2246 for (; local_got
< end_local_got
; ++local_got
, ++local_tls_type
)
2250 *local_got
= s
->size
;
2251 s
->size
+= SPARC_ELF_WORD_BYTES (htab
);
2252 if (*local_tls_type
== GOT_TLS_GD
)
2253 s
->size
+= SPARC_ELF_WORD_BYTES (htab
);
2255 || *local_tls_type
== GOT_TLS_GD
2256 || *local_tls_type
== GOT_TLS_IE
)
2257 srel
->size
+= SPARC_ELF_RELA_BYTES (htab
);
2260 *local_got
= (bfd_vma
) -1;
2264 if (htab
->tls_ldm_got
.refcount
> 0)
2266 /* Allocate 2 got entries and 1 dynamic reloc for
2267 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
2268 htab
->tls_ldm_got
.offset
= htab
->sgot
->size
;
2269 htab
->sgot
->size
+= (2 * SPARC_ELF_WORD_BYTES (htab
));
2270 htab
->srelgot
->size
+= SPARC_ELF_RELA_BYTES (htab
);
2273 htab
->tls_ldm_got
.offset
= -1;
2275 /* Allocate global sym .plt and .got entries, and space for global
2276 sym dynamic relocs. */
2277 elf_link_hash_traverse (&htab
->elf
, allocate_dynrelocs
, (PTR
) info
);
2279 if (! ABI_64_P (output_bfd
)
2280 && !htab
->is_vxworks
2281 && elf_hash_table (info
)->dynamic_sections_created
)
2283 /* Make space for the trailing nop in .plt. */
2284 if (htab
->splt
->size
> 0)
2285 htab
->splt
->size
+= 1 * SPARC_INSN_BYTES
;
2287 /* If the .got section is more than 0x1000 bytes, we add
2288 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2289 bit relocations have a greater chance of working.
2291 FIXME: Make this optimization work for 64-bit too. */
2292 if (htab
->sgot
->size
>= 0x1000
2293 && elf_hash_table (info
)->hgot
->root
.u
.def
.value
== 0)
2294 elf_hash_table (info
)->hgot
->root
.u
.def
.value
= 0x1000;
2297 /* The check_relocs and adjust_dynamic_symbol entry points have
2298 determined the sizes of the various dynamic sections. Allocate
2300 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
2302 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
2307 || s
== htab
->sdynbss
2308 || s
== htab
->sgotplt
)
2310 /* Strip this section if we don't need it; see the
2313 else if (CONST_STRNEQ (s
->name
, ".rela"))
2317 /* We use the reloc_count field as a counter if we need
2318 to copy relocs into the output file. */
2324 /* It's not one of our sections. */
2330 /* If we don't need this section, strip it from the
2331 output file. This is mostly to handle .rela.bss and
2332 .rela.plt. We must create both sections in
2333 create_dynamic_sections, because they must be created
2334 before the linker maps input sections to output
2335 sections. The linker does that before
2336 adjust_dynamic_symbol is called, and it is that
2337 function which decides whether anything needs to go
2338 into these sections. */
2339 s
->flags
|= SEC_EXCLUDE
;
2343 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
2346 /* Allocate memory for the section contents. Zero the memory
2347 for the benefit of .rela.plt, which has 4 unused entries
2348 at the beginning, and we don't want garbage. */
2349 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
2350 if (s
->contents
== NULL
)
2354 if (elf_hash_table (info
)->dynamic_sections_created
)
2356 /* Add some entries to the .dynamic section. We fill in the
2357 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2358 must add the entries now so that we get the correct size for
2359 the .dynamic section. The DT_DEBUG entry is filled in by the
2360 dynamic linker and used by the debugger. */
2361 #define add_dynamic_entry(TAG, VAL) \
2362 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2364 if (info
->executable
)
2366 if (!add_dynamic_entry (DT_DEBUG
, 0))
2370 if (htab
->srelplt
->size
!= 0)
2372 if (!add_dynamic_entry (DT_PLTGOT
, 0)
2373 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
2374 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
2375 || !add_dynamic_entry (DT_JMPREL
, 0))
2379 if (!add_dynamic_entry (DT_RELA
, 0)
2380 || !add_dynamic_entry (DT_RELASZ
, 0)
2381 || !add_dynamic_entry (DT_RELAENT
,
2382 SPARC_ELF_RELA_BYTES (htab
)))
2385 /* If any dynamic relocs apply to a read-only section,
2386 then we need a DT_TEXTREL entry. */
2387 if ((info
->flags
& DF_TEXTREL
) == 0)
2388 elf_link_hash_traverse (&htab
->elf
, readonly_dynrelocs
,
2391 if (info
->flags
& DF_TEXTREL
)
2393 if (!add_dynamic_entry (DT_TEXTREL
, 0))
2397 if (ABI_64_P (output_bfd
))
2400 struct _bfd_sparc_elf_app_reg
* app_regs
;
2401 struct elf_strtab_hash
*dynstr
;
2402 struct elf_link_hash_table
*eht
= elf_hash_table (info
);
2404 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2405 entries if needed. */
2406 app_regs
= _bfd_sparc_elf_hash_table (info
)->app_regs
;
2407 dynstr
= eht
->dynstr
;
2409 for (reg
= 0; reg
< 4; reg
++)
2410 if (app_regs
[reg
].name
!= NULL
)
2412 struct elf_link_local_dynamic_entry
*entry
, *e
;
2414 if (!add_dynamic_entry (DT_SPARC_REGISTER
, 0))
2417 entry
= (struct elf_link_local_dynamic_entry
*)
2418 bfd_hash_allocate (&info
->hash
->table
, sizeof (*entry
));
2422 /* We cheat here a little bit: the symbol will not be local, so we
2423 put it at the end of the dynlocal linked list. We will fix it
2424 later on, as we have to fix other fields anyway. */
2425 entry
->isym
.st_value
= reg
< 2 ? reg
+ 2 : reg
+ 4;
2426 entry
->isym
.st_size
= 0;
2427 if (*app_regs
[reg
].name
!= '\0')
2429 = _bfd_elf_strtab_add (dynstr
, app_regs
[reg
].name
, FALSE
);
2431 entry
->isym
.st_name
= 0;
2432 entry
->isym
.st_other
= 0;
2433 entry
->isym
.st_info
= ELF_ST_INFO (app_regs
[reg
].bind
,
2435 entry
->isym
.st_shndx
= app_regs
[reg
].shndx
;
2437 entry
->input_bfd
= output_bfd
;
2438 entry
->input_indx
= -1;
2440 if (eht
->dynlocal
== NULL
)
2441 eht
->dynlocal
= entry
;
2444 for (e
= eht
->dynlocal
; e
->next
; e
= e
->next
)
2451 if (htab
->is_vxworks
2452 && !elf_vxworks_add_dynamic_entries (output_bfd
, info
))
2455 #undef add_dynamic_entry
2461 _bfd_sparc_elf_new_section_hook (bfd
*abfd
, asection
*sec
)
2463 if (!sec
->used_by_bfd
)
2465 struct _bfd_sparc_elf_section_data
*sdata
;
2466 bfd_size_type amt
= sizeof (*sdata
);
2468 sdata
= bfd_zalloc (abfd
, amt
);
2471 sec
->used_by_bfd
= sdata
;
2474 return _bfd_elf_new_section_hook (abfd
, sec
);
2478 _bfd_sparc_elf_relax_section (bfd
*abfd ATTRIBUTE_UNUSED
,
2479 struct bfd_section
*section
,
2480 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
,
2484 sec_do_relax (section
) = 1;
2488 /* Return the base VMA address which should be subtracted from real addresses
2489 when resolving @dtpoff relocation.
2490 This is PT_TLS segment p_vaddr. */
2493 dtpoff_base (struct bfd_link_info
*info
)
2495 /* If tls_sec is NULL, we should have signalled an error already. */
2496 if (elf_hash_table (info
)->tls_sec
== NULL
)
2498 return elf_hash_table (info
)->tls_sec
->vma
;
2501 /* Return the relocation value for @tpoff relocation
2502 if STT_TLS virtual address is ADDRESS. */
2505 tpoff (struct bfd_link_info
*info
, bfd_vma address
)
2507 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
2509 /* If tls_sec is NULL, we should have signalled an error already. */
2510 if (htab
->tls_sec
== NULL
)
2512 return address
- htab
->tls_size
- htab
->tls_sec
->vma
;
2515 /* Relocate a SPARC ELF section. */
2518 _bfd_sparc_elf_relocate_section (bfd
*output_bfd
,
2519 struct bfd_link_info
*info
,
2521 asection
*input_section
,
2523 Elf_Internal_Rela
*relocs
,
2524 Elf_Internal_Sym
*local_syms
,
2525 asection
**local_sections
)
2527 struct _bfd_sparc_elf_link_hash_table
*htab
;
2528 Elf_Internal_Shdr
*symtab_hdr
;
2529 struct elf_link_hash_entry
**sym_hashes
;
2530 bfd_vma
*local_got_offsets
;
2533 Elf_Internal_Rela
*rel
;
2534 Elf_Internal_Rela
*relend
;
2536 bfd_boolean is_vxworks_tls
;
2538 htab
= _bfd_sparc_elf_hash_table (info
);
2539 symtab_hdr
= &elf_symtab_hdr (input_bfd
);
2540 sym_hashes
= elf_sym_hashes (input_bfd
);
2541 local_got_offsets
= elf_local_got_offsets (input_bfd
);
2543 if (elf_hash_table (info
)->hgot
== NULL
)
2546 got_base
= elf_hash_table (info
)->hgot
->root
.u
.def
.value
;
2548 sreloc
= elf_section_data (input_section
)->sreloc
;
2549 /* We have to handle relocations in vxworks .tls_vars sections
2550 specially, because the dynamic loader is 'weird'. */
2551 is_vxworks_tls
= (htab
->is_vxworks
&& info
->shared
2552 && !strcmp (input_section
->output_section
->name
,
2556 if (ABI_64_P (output_bfd
))
2557 num_relocs
= NUM_SHDR_ENTRIES (& elf_section_data (input_section
)->rel_hdr
);
2559 num_relocs
= input_section
->reloc_count
;
2560 relend
= relocs
+ num_relocs
;
2561 for (; rel
< relend
; rel
++)
2563 int r_type
, tls_type
;
2564 reloc_howto_type
*howto
;
2565 unsigned long r_symndx
;
2566 struct elf_link_hash_entry
*h
;
2567 Elf_Internal_Sym
*sym
;
2569 bfd_vma relocation
, off
;
2570 bfd_reloc_status_type r
;
2571 bfd_boolean is_plt
= FALSE
;
2572 bfd_boolean unresolved_reloc
;
2574 r_type
= SPARC_ELF_R_TYPE (rel
->r_info
);
2575 if (r_type
== R_SPARC_GNU_VTINHERIT
2576 || r_type
== R_SPARC_GNU_VTENTRY
)
2579 if (r_type
< 0 || r_type
>= (int) R_SPARC_max_std
)
2581 bfd_set_error (bfd_error_bad_value
);
2584 howto
= _bfd_sparc_elf_howto_table
+ r_type
;
2586 r_symndx
= SPARC_ELF_R_SYMNDX (htab
, rel
->r_info
);
2590 unresolved_reloc
= FALSE
;
2591 if (r_symndx
< symtab_hdr
->sh_info
)
2593 sym
= local_syms
+ r_symndx
;
2594 sec
= local_sections
[r_symndx
];
2595 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
2601 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
2602 r_symndx
, symtab_hdr
, sym_hashes
,
2604 unresolved_reloc
, warned
);
2607 /* To avoid generating warning messages about truncated
2608 relocations, set the relocation's address to be the same as
2609 the start of this section. */
2610 if (input_section
->output_section
!= NULL
)
2611 relocation
= input_section
->output_section
->vma
;
2617 if (sec
!= NULL
&& elf_discarded_section (sec
))
2619 /* For relocs against symbols from removed linkonce
2620 sections, or sections discarded by a linker script, we
2621 just want the section contents zeroed. Avoid any
2622 special processing. */
2623 _bfd_clear_contents (howto
, input_bfd
, contents
+ rel
->r_offset
);
2629 if (info
->relocatable
)
2634 case R_SPARC_GOTDATA_HIX22
:
2635 case R_SPARC_GOTDATA_LOX10
:
2636 case R_SPARC_GOTDATA_OP_HIX22
:
2637 case R_SPARC_GOTDATA_OP_LOX10
:
2638 /* We don't support these code transformation optimizations
2639 yet, so just leave the sequence alone and treat as
2641 if (r_type
== R_SPARC_GOTDATA_HIX22
2642 || r_type
== R_SPARC_GOTDATA_OP_HIX22
)
2643 r_type
= R_SPARC_GOT22
;
2645 r_type
= R_SPARC_GOT10
;
2651 /* Relocation is to the entry for this symbol in the global
2653 if (htab
->sgot
== NULL
)
2660 off
= h
->got
.offset
;
2661 BFD_ASSERT (off
!= (bfd_vma
) -1);
2662 dyn
= elf_hash_table (info
)->dynamic_sections_created
;
2664 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
)
2671 /* This is actually a static link, or it is a
2672 -Bsymbolic link and the symbol is defined
2673 locally, or the symbol was forced to be local
2674 because of a version file. We must initialize
2675 this entry in the global offset table. Since the
2676 offset must always be a multiple of 8 for 64-bit
2677 and 4 for 32-bit, we use the least significant bit
2678 to record whether we have initialized it already.
2680 When doing a dynamic link, we create a .rela.got
2681 relocation entry to initialize the value. This
2682 is done in the finish_dynamic_symbol routine. */
2687 SPARC_ELF_PUT_WORD (htab
, output_bfd
, relocation
,
2688 htab
->sgot
->contents
+ off
);
2693 unresolved_reloc
= FALSE
;
2697 BFD_ASSERT (local_got_offsets
!= NULL
2698 && local_got_offsets
[r_symndx
] != (bfd_vma
) -1);
2700 off
= local_got_offsets
[r_symndx
];
2702 /* The offset must always be a multiple of 8 on 64-bit and
2703 4 on 32-bit. We use the least significant bit to record
2704 whether we have already processed this entry. */
2713 Elf_Internal_Rela outrel
;
2715 /* We need to generate a R_SPARC_RELATIVE reloc
2716 for the dynamic linker. */
2718 BFD_ASSERT (s
!= NULL
);
2720 outrel
.r_offset
= (htab
->sgot
->output_section
->vma
2721 + htab
->sgot
->output_offset
2723 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
,
2724 0, R_SPARC_RELATIVE
);
2725 outrel
.r_addend
= relocation
;
2727 sparc_elf_append_rela (output_bfd
, s
, &outrel
);
2730 SPARC_ELF_PUT_WORD (htab
, output_bfd
, relocation
,
2731 htab
->sgot
->contents
+ off
);
2732 local_got_offsets
[r_symndx
] |= 1;
2735 relocation
= htab
->sgot
->output_offset
+ off
- got_base
;
2740 if (h
== NULL
|| h
->plt
.offset
== (bfd_vma
) -1)
2742 r_type
= (r_type
== R_SPARC_PLT32
) ? R_SPARC_32
: R_SPARC_64
;
2747 case R_SPARC_WPLT30
:
2748 case R_SPARC_HIPLT22
:
2749 case R_SPARC_LOPLT10
:
2750 case R_SPARC_PCPLT32
:
2751 case R_SPARC_PCPLT22
:
2752 case R_SPARC_PCPLT10
:
2754 /* Relocation is to the entry for this symbol in the
2755 procedure linkage table. */
2757 if (! ABI_64_P (output_bfd
))
2759 /* The Solaris native assembler will generate a WPLT30 reloc
2760 for a local symbol if you assemble a call from one
2761 section to another when using -K pic. We treat it as
2766 /* PR 7027: We need similar behaviour for 64-bit binaries. */
2767 else if (r_type
== R_SPARC_WPLT30
&& h
== NULL
)
2771 BFD_ASSERT (h
!= NULL
);
2774 if (h
->plt
.offset
== (bfd_vma
) -1 || htab
->splt
== NULL
)
2776 /* We didn't make a PLT entry for this symbol. This
2777 happens when statically linking PIC code, or when
2778 using -Bsymbolic. */
2782 relocation
= (htab
->splt
->output_section
->vma
2783 + htab
->splt
->output_offset
2785 unresolved_reloc
= FALSE
;
2786 if (r_type
== R_SPARC_PLT32
|| r_type
== R_SPARC_PLT64
)
2788 r_type
= r_type
== R_SPARC_PLT32
? R_SPARC_32
: R_SPARC_64
;
2796 case R_SPARC_PC_HH22
:
2797 case R_SPARC_PC_HM10
:
2798 case R_SPARC_PC_LM22
:
2800 && strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
2804 case R_SPARC_DISP16
:
2805 case R_SPARC_DISP32
:
2806 case R_SPARC_DISP64
:
2807 case R_SPARC_WDISP30
:
2808 case R_SPARC_WDISP22
:
2809 case R_SPARC_WDISP19
:
2810 case R_SPARC_WDISP16
:
2837 if ((input_section
->flags
& SEC_ALLOC
) == 0
2843 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2844 || h
->root
.type
!= bfd_link_hash_undefweak
)
2845 && (! howto
->pc_relative
2848 && (! info
->symbolic
2849 || !h
->def_regular
))))
2856 || h
->root
.type
== bfd_link_hash_undefweak
2857 || h
->root
.type
== bfd_link_hash_undefined
)))
2859 Elf_Internal_Rela outrel
;
2860 bfd_boolean skip
, relocate
= FALSE
;
2862 /* When generating a shared object, these relocations
2863 are copied into the output file to be resolved at run
2866 BFD_ASSERT (sreloc
!= NULL
);
2871 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
2873 if (outrel
.r_offset
== (bfd_vma
) -1)
2875 else if (outrel
.r_offset
== (bfd_vma
) -2)
2876 skip
= TRUE
, relocate
= TRUE
;
2877 outrel
.r_offset
+= (input_section
->output_section
->vma
2878 + input_section
->output_offset
);
2880 /* Optimize unaligned reloc usage now that we know where
2881 it finally resides. */
2885 if (outrel
.r_offset
& 1)
2886 r_type
= R_SPARC_UA16
;
2889 if (!(outrel
.r_offset
& 1))
2890 r_type
= R_SPARC_16
;
2893 if (outrel
.r_offset
& 3)
2894 r_type
= R_SPARC_UA32
;
2897 if (!(outrel
.r_offset
& 3))
2898 r_type
= R_SPARC_32
;
2901 if (outrel
.r_offset
& 7)
2902 r_type
= R_SPARC_UA64
;
2905 if (!(outrel
.r_offset
& 7))
2906 r_type
= R_SPARC_64
;
2909 case R_SPARC_DISP16
:
2910 case R_SPARC_DISP32
:
2911 case R_SPARC_DISP64
:
2912 /* If the symbol is not dynamic, we should not keep
2913 a dynamic relocation. But an .rela.* slot has been
2914 allocated for it, output R_SPARC_NONE.
2915 FIXME: Add code tracking needed dynamic relocs as
2917 if (h
->dynindx
== -1)
2918 skip
= TRUE
, relocate
= TRUE
;
2923 memset (&outrel
, 0, sizeof outrel
);
2924 /* h->dynindx may be -1 if the symbol was marked to
2926 else if (h
!= NULL
&& ! is_plt
2927 && ((! info
->symbolic
&& h
->dynindx
!= -1)
2928 || !h
->def_regular
))
2930 BFD_ASSERT (h
->dynindx
!= -1);
2931 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, rel
, h
->dynindx
, r_type
);
2932 outrel
.r_addend
= rel
->r_addend
;
2936 if (r_type
== R_SPARC_32
|| r_type
== R_SPARC_64
)
2938 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
,
2939 0, R_SPARC_RELATIVE
);
2940 outrel
.r_addend
= relocation
+ rel
->r_addend
;
2946 outrel
.r_addend
= relocation
+ rel
->r_addend
;
2951 if (bfd_is_abs_section (sec
))
2953 else if (sec
== NULL
|| sec
->owner
== NULL
)
2955 bfd_set_error (bfd_error_bad_value
);
2962 /* We are turning this relocation into one
2963 against a section symbol. It would be
2964 proper to subtract the symbol's value,
2965 osec->vma, from the emitted reloc addend,
2966 but ld.so expects buggy relocs. */
2967 osec
= sec
->output_section
;
2968 indx
= elf_section_data (osec
)->dynindx
;
2972 osec
= htab
->elf
.text_index_section
;
2973 indx
= elf_section_data (osec
)->dynindx
;
2976 /* FIXME: we really should be able to link non-pic
2977 shared libraries. */
2981 (*_bfd_error_handler
)
2982 (_("%B: probably compiled without -fPIC?"),
2984 bfd_set_error (bfd_error_bad_value
);
2989 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, rel
, indx
,
2994 sparc_elf_append_rela (output_bfd
, sreloc
, &outrel
);
2996 /* This reloc will be computed at runtime, so there's no
2997 need to do anything now. */
3003 case R_SPARC_TLS_GD_HI22
:
3004 if (! ABI_64_P (input_bfd
)
3005 && ! _bfd_sparc_elf_tdata (input_bfd
)->has_tlsgd
)
3007 /* R_SPARC_REV32 used the same reloc number as
3008 R_SPARC_TLS_GD_HI22. */
3009 r_type
= R_SPARC_REV32
;
3014 case R_SPARC_TLS_GD_LO10
:
3015 case R_SPARC_TLS_IE_HI22
:
3016 case R_SPARC_TLS_IE_LO10
:
3017 r_type
= sparc_elf_tls_transition (info
, input_bfd
, r_type
, h
== NULL
);
3018 tls_type
= GOT_UNKNOWN
;
3019 if (h
== NULL
&& local_got_offsets
)
3020 tls_type
= _bfd_sparc_elf_local_got_tls_type (input_bfd
) [r_symndx
];
3023 tls_type
= _bfd_sparc_elf_hash_entry(h
)->tls_type
;
3024 if (!info
->shared
&& h
->dynindx
== -1 && tls_type
== GOT_TLS_IE
)
3025 switch (SPARC_ELF_R_TYPE (rel
->r_info
))
3027 case R_SPARC_TLS_GD_HI22
:
3028 case R_SPARC_TLS_IE_HI22
:
3029 r_type
= R_SPARC_TLS_LE_HIX22
;
3032 r_type
= R_SPARC_TLS_LE_LOX10
;
3036 if (tls_type
== GOT_TLS_IE
)
3039 case R_SPARC_TLS_GD_HI22
:
3040 r_type
= R_SPARC_TLS_IE_HI22
;
3042 case R_SPARC_TLS_GD_LO10
:
3043 r_type
= R_SPARC_TLS_IE_LO10
;
3047 if (r_type
== R_SPARC_TLS_LE_HIX22
)
3049 relocation
= tpoff (info
, relocation
);
3052 if (r_type
== R_SPARC_TLS_LE_LOX10
)
3054 /* Change add into xor. */
3055 relocation
= tpoff (info
, relocation
);
3056 bfd_put_32 (output_bfd
, (bfd_get_32 (input_bfd
,
3057 contents
+ rel
->r_offset
)
3058 | 0x80182000), contents
+ rel
->r_offset
);
3064 off
= h
->got
.offset
;
3069 BFD_ASSERT (local_got_offsets
!= NULL
);
3070 off
= local_got_offsets
[r_symndx
];
3071 local_got_offsets
[r_symndx
] |= 1;
3075 if (htab
->sgot
== NULL
)
3082 Elf_Internal_Rela outrel
;
3085 if (htab
->srelgot
== NULL
)
3088 SPARC_ELF_PUT_WORD (htab
, output_bfd
, 0, htab
->sgot
->contents
+ off
);
3089 outrel
.r_offset
= (htab
->sgot
->output_section
->vma
3090 + htab
->sgot
->output_offset
+ off
);
3091 indx
= h
&& h
->dynindx
!= -1 ? h
->dynindx
: 0;
3092 if (r_type
== R_SPARC_TLS_IE_HI22
3093 || r_type
== R_SPARC_TLS_IE_LO10
)
3094 dr_type
= SPARC_ELF_TPOFF_RELOC (htab
);
3096 dr_type
= SPARC_ELF_DTPMOD_RELOC (htab
);
3097 if (dr_type
== SPARC_ELF_TPOFF_RELOC (htab
) && indx
== 0)
3098 outrel
.r_addend
= relocation
- dtpoff_base (info
);
3100 outrel
.r_addend
= 0;
3101 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, indx
, dr_type
);
3102 sparc_elf_append_rela (output_bfd
, htab
->srelgot
, &outrel
);
3104 if (r_type
== R_SPARC_TLS_GD_HI22
3105 || r_type
== R_SPARC_TLS_GD_LO10
)
3109 BFD_ASSERT (! unresolved_reloc
);
3110 SPARC_ELF_PUT_WORD (htab
, output_bfd
,
3111 relocation
- dtpoff_base (info
),
3112 (htab
->sgot
->contents
+ off
3113 + SPARC_ELF_WORD_BYTES (htab
)));
3117 SPARC_ELF_PUT_WORD (htab
, output_bfd
, 0,
3118 (htab
->sgot
->contents
+ off
3119 + SPARC_ELF_WORD_BYTES (htab
)));
3120 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, indx
,
3121 SPARC_ELF_DTPOFF_RELOC (htab
));
3122 outrel
.r_offset
+= SPARC_ELF_WORD_BYTES (htab
);
3123 sparc_elf_append_rela (output_bfd
, htab
->srelgot
,
3127 else if (dr_type
== SPARC_ELF_DTPMOD_RELOC (htab
))
3129 SPARC_ELF_PUT_WORD (htab
, output_bfd
, 0,
3130 (htab
->sgot
->contents
+ off
3131 + SPARC_ELF_WORD_BYTES (htab
)));
3135 if (off
>= (bfd_vma
) -2)
3138 relocation
= htab
->sgot
->output_offset
+ off
- got_base
;
3139 unresolved_reloc
= FALSE
;
3140 howto
= _bfd_sparc_elf_howto_table
+ r_type
;
3143 case R_SPARC_TLS_LDM_HI22
:
3144 case R_SPARC_TLS_LDM_LO10
:
3147 bfd_put_32 (output_bfd
, SPARC_NOP
, contents
+ rel
->r_offset
);
3150 off
= htab
->tls_ldm_got
.offset
;
3151 htab
->tls_ldm_got
.offset
|= 1;
3152 goto r_sparc_tlsldm
;
3154 case R_SPARC_TLS_LDO_HIX22
:
3155 case R_SPARC_TLS_LDO_LOX10
:
3158 relocation
-= dtpoff_base (info
);
3162 r_type
= (r_type
== R_SPARC_TLS_LDO_HIX22
3163 ? R_SPARC_TLS_LE_HIX22
: R_SPARC_TLS_LE_LOX10
);
3166 case R_SPARC_TLS_LE_HIX22
:
3167 case R_SPARC_TLS_LE_LOX10
:
3170 Elf_Internal_Rela outrel
;
3171 bfd_boolean skip
, relocate
= FALSE
;
3173 BFD_ASSERT (sreloc
!= NULL
);
3176 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
3178 if (outrel
.r_offset
== (bfd_vma
) -1)
3180 else if (outrel
.r_offset
== (bfd_vma
) -2)
3181 skip
= TRUE
, relocate
= TRUE
;
3182 outrel
.r_offset
+= (input_section
->output_section
->vma
3183 + input_section
->output_offset
);
3185 memset (&outrel
, 0, sizeof outrel
);
3188 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, 0, r_type
);
3189 outrel
.r_addend
= relocation
- dtpoff_base (info
)
3193 sparc_elf_append_rela (output_bfd
, sreloc
, &outrel
);
3196 relocation
= tpoff (info
, relocation
);
3199 case R_SPARC_TLS_LDM_CALL
:
3203 bfd_put_32 (output_bfd
, 0x90100000, contents
+ rel
->r_offset
);
3208 case R_SPARC_TLS_GD_CALL
:
3209 tls_type
= GOT_UNKNOWN
;
3210 if (h
== NULL
&& local_got_offsets
)
3211 tls_type
= _bfd_sparc_elf_local_got_tls_type (input_bfd
) [r_symndx
];
3213 tls_type
= _bfd_sparc_elf_hash_entry(h
)->tls_type
;
3215 || (r_type
== R_SPARC_TLS_GD_CALL
&& tls_type
== GOT_TLS_IE
))
3219 if (!info
->shared
&& (h
== NULL
|| h
->dynindx
== -1))
3222 bfd_put_32 (output_bfd
, SPARC_NOP
, contents
+ rel
->r_offset
);
3227 if (rel
+ 1 < relend
3228 && SPARC_ELF_R_TYPE (rel
[1].r_info
) == R_SPARC_TLS_GD_ADD
3229 && rel
[1].r_offset
== rel
->r_offset
+ 4
3230 && SPARC_ELF_R_SYMNDX (htab
, rel
[1].r_info
) == r_symndx
3231 && (((insn
= bfd_get_32 (input_bfd
,
3232 contents
+ rel
[1].r_offset
))
3233 >> 25) & 0x1f) == 8)
3236 call __tls_get_addr, %tgd_call(foo)
3237 add %reg1, %reg2, %o0, %tgd_add(foo)
3238 and change it into IE:
3239 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3240 add %g7, %o0, %o0, %tie_add(foo).
3241 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3242 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3243 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3244 bfd_put_32 (output_bfd
, insn
| (ABI_64_P (output_bfd
) ? 0xc0580000 : 0xc0000000),
3245 contents
+ rel
->r_offset
);
3246 bfd_put_32 (output_bfd
, 0x9001c008,
3247 contents
+ rel
->r_offset
+ 4);
3252 bfd_put_32 (output_bfd
, 0x9001c008, contents
+ rel
->r_offset
);
3256 h
= (struct elf_link_hash_entry
*)
3257 bfd_link_hash_lookup (info
->hash
, "__tls_get_addr", FALSE
,
3259 BFD_ASSERT (h
!= NULL
);
3260 r_type
= R_SPARC_WPLT30
;
3261 howto
= _bfd_sparc_elf_howto_table
+ r_type
;
3262 goto r_sparc_wplt30
;
3264 case R_SPARC_TLS_GD_ADD
:
3265 tls_type
= GOT_UNKNOWN
;
3266 if (h
== NULL
&& local_got_offsets
)
3267 tls_type
= _bfd_sparc_elf_local_got_tls_type (input_bfd
) [r_symndx
];
3269 tls_type
= _bfd_sparc_elf_hash_entry(h
)->tls_type
;
3270 if (! info
->shared
|| tls_type
== GOT_TLS_IE
)
3272 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3274 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3276 add %g7, %reg2, %reg3. */
3277 bfd_vma insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3278 if ((h
!= NULL
&& h
->dynindx
!= -1) || info
->shared
)
3279 relocation
= insn
| (ABI_64_P (output_bfd
) ? 0xc0580000 : 0xc0000000);
3281 relocation
= (insn
& ~0x7c000) | 0x1c000;
3282 bfd_put_32 (output_bfd
, relocation
, contents
+ rel
->r_offset
);
3286 case R_SPARC_TLS_LDM_ADD
:
3288 bfd_put_32 (output_bfd
, SPARC_NOP
, contents
+ rel
->r_offset
);
3291 case R_SPARC_TLS_LDO_ADD
:
3294 /* Change rs1 into %g7. */
3295 bfd_vma insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3296 insn
= (insn
& ~0x7c000) | 0x1c000;
3297 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
3301 case R_SPARC_GOTDATA_OP
:
3302 /* We don't support gotdata code transformation optimizations
3303 yet, so simply leave the sequence as-is. */
3306 case R_SPARC_TLS_IE_LD
:
3307 case R_SPARC_TLS_IE_LDX
:
3308 if (! info
->shared
&& (h
== NULL
|| h
->dynindx
== -1))
3310 bfd_vma insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3311 int rs2
= insn
& 0x1f;
3312 int rd
= (insn
>> 25) & 0x1f;
3315 relocation
= SPARC_NOP
;
3317 relocation
= 0x80100000 | (insn
& 0x3e00001f);
3318 bfd_put_32 (output_bfd
, relocation
, contents
+ rel
->r_offset
);
3322 case R_SPARC_TLS_IE_ADD
:
3323 /* Totally useless relocation. */
3326 case R_SPARC_TLS_DTPOFF32
:
3327 case R_SPARC_TLS_DTPOFF64
:
3328 relocation
-= dtpoff_base (info
);
3335 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3336 because such sections are not SEC_ALLOC and thus ld.so will
3337 not process them. */
3338 if (unresolved_reloc
3339 && !((input_section
->flags
& SEC_DEBUGGING
) != 0
3341 (*_bfd_error_handler
)
3342 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
3345 (long) rel
->r_offset
,
3347 h
->root
.root
.string
);
3349 r
= bfd_reloc_continue
;
3350 if (r_type
== R_SPARC_OLO10
)
3354 if (! ABI_64_P (output_bfd
))
3357 relocation
+= rel
->r_addend
;
3358 relocation
= (relocation
& 0x3ff) + ELF64_R_TYPE_DATA (rel
->r_info
);
3360 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3361 x
= (x
& ~(bfd_vma
) 0x1fff) | (relocation
& 0x1fff);
3362 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3364 r
= bfd_check_overflow (howto
->complain_on_overflow
,
3365 howto
->bitsize
, howto
->rightshift
,
3366 bfd_arch_bits_per_address (input_bfd
),
3369 else if (r_type
== R_SPARC_WDISP16
)
3373 relocation
+= rel
->r_addend
;
3374 relocation
-= (input_section
->output_section
->vma
3375 + input_section
->output_offset
);
3376 relocation
-= rel
->r_offset
;
3378 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3379 x
|= ((((relocation
>> 2) & 0xc000) << 6)
3380 | ((relocation
>> 2) & 0x3fff));
3381 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3383 r
= bfd_check_overflow (howto
->complain_on_overflow
,
3384 howto
->bitsize
, howto
->rightshift
,
3385 bfd_arch_bits_per_address (input_bfd
),
3388 else if (r_type
== R_SPARC_REV32
)
3392 relocation
= relocation
+ rel
->r_addend
;
3394 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3396 bfd_putl32 (/*input_bfd,*/ x
, contents
+ rel
->r_offset
);
3399 else if (r_type
== R_SPARC_TLS_LDO_HIX22
3400 || r_type
== R_SPARC_TLS_LE_HIX22
)
3404 relocation
+= rel
->r_addend
;
3405 if (r_type
== R_SPARC_TLS_LE_HIX22
)
3406 relocation
^= MINUS_ONE
;
3408 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3409 x
= (x
& ~(bfd_vma
) 0x3fffff) | ((relocation
>> 10) & 0x3fffff);
3410 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3413 else if (r_type
== R_SPARC_TLS_LDO_LOX10
3414 || r_type
== R_SPARC_TLS_LE_LOX10
)
3418 relocation
+= rel
->r_addend
;
3419 relocation
&= 0x3ff;
3420 if (r_type
== R_SPARC_TLS_LE_LOX10
)
3421 relocation
|= 0x1c00;
3423 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3424 x
= (x
& ~(bfd_vma
) 0x1fff) | relocation
;
3425 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3429 else if (r_type
== R_SPARC_HIX22
)
3433 relocation
+= rel
->r_addend
;
3434 relocation
= relocation
^ MINUS_ONE
;
3436 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3437 x
= (x
& ~(bfd_vma
) 0x3fffff) | ((relocation
>> 10) & 0x3fffff);
3438 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3440 r
= bfd_check_overflow (howto
->complain_on_overflow
,
3441 howto
->bitsize
, howto
->rightshift
,
3442 bfd_arch_bits_per_address (input_bfd
),
3445 else if (r_type
== R_SPARC_LOX10
)
3449 relocation
+= rel
->r_addend
;
3450 relocation
= (relocation
& 0x3ff) | 0x1c00;
3452 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3453 x
= (x
& ~(bfd_vma
) 0x1fff) | relocation
;
3454 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3458 else if ((r_type
== R_SPARC_WDISP30
|| r_type
== R_SPARC_WPLT30
)
3459 && sec_do_relax (input_section
)
3460 && rel
->r_offset
+ 4 < input_section
->size
)
3464 #define XCC (2 << 20)
3465 #define COND(x) (((x)&0xf)<<25)
3466 #define CONDA COND(0x8)
3467 #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
3468 #define INSN_BA (F2(0,2) | CONDA)
3469 #define INSN_OR F3(2, 0x2, 0)
3470 #define INSN_NOP F2(0,4)
3474 /* If the instruction is a call with either:
3476 arithmetic instruction with rd == %o7
3477 where rs1 != %o7 and rs2 if it is register != %o7
3478 then we can optimize if the call destination is near
3479 by changing the call into a branch always. */
3480 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3481 y
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
+ 4);
3482 if ((x
& OP(~0)) == OP(1) && (y
& OP(~0)) == OP(2))
3484 if (((y
& OP3(~0)) == OP3(0x3d) /* restore */
3485 || ((y
& OP3(0x28)) == 0 /* arithmetic */
3486 && (y
& RD(~0)) == RD(O7
)))
3487 && (y
& RS1(~0)) != RS1(O7
)
3489 || (y
& RS2(~0)) != RS2(O7
)))
3493 reloc
= relocation
+ rel
->r_addend
- rel
->r_offset
;
3494 reloc
-= (input_section
->output_section
->vma
3495 + input_section
->output_offset
);
3497 /* Ensure the branch fits into simm22. */
3498 if ((reloc
& 3) == 0
3499 && ((reloc
& ~(bfd_vma
)0x7fffff) == 0
3500 || ((reloc
| 0x7fffff) == ~(bfd_vma
)0)))
3504 /* Check whether it fits into simm19. */
3505 if (((reloc
& 0x3c0000) == 0
3506 || (reloc
& 0x3c0000) == 0x3c0000)
3507 && (ABI_64_P (output_bfd
)
3508 || elf_elfheader (output_bfd
)->e_flags
& EF_SPARC_32PLUS
))
3509 x
= INSN_BPA
| (reloc
& 0x7ffff); /* ba,pt %xcc */
3511 x
= INSN_BA
| (reloc
& 0x3fffff); /* ba */
3512 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3514 if (rel
->r_offset
>= 4
3515 && (y
& (0xffffffff ^ RS1(~0)))
3516 == (INSN_OR
| RD(O7
) | RS2(G0
)))
3521 z
= bfd_get_32 (input_bfd
,
3522 contents
+ rel
->r_offset
- 4);
3523 if ((z
& (0xffffffff ^ RD(~0)))
3524 != (INSN_OR
| RS1(O7
) | RS2(G0
)))
3532 If call foo was replaced with ba, replace
3533 or %rN, %g0, %o7 with nop. */
3535 reg
= (y
& RS1(~0)) >> 14;
3536 if (reg
!= ((z
& RD(~0)) >> 25)
3537 || reg
== G0
|| reg
== O7
)
3540 bfd_put_32 (input_bfd
, (bfd_vma
) INSN_NOP
,
3541 contents
+ rel
->r_offset
+ 4);
3549 if (r
== bfd_reloc_continue
)
3550 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
3551 contents
, rel
->r_offset
,
3552 relocation
, rel
->r_addend
);
3554 if (r
!= bfd_reloc_ok
)
3559 case bfd_reloc_outofrange
:
3561 case bfd_reloc_overflow
:
3565 /* The Solaris native linker silently disregards overflows.
3566 We don't, but this breaks stabs debugging info, whose
3567 relocations are only 32-bits wide. Ignore overflows in
3568 this case and also for discarded entries. */
3569 if ((r_type
== R_SPARC_32
|| r_type
== R_SPARC_DISP32
)
3570 && (((input_section
->flags
& SEC_DEBUGGING
) != 0
3571 && strcmp (bfd_section_name (input_bfd
,
3574 || _bfd_elf_section_offset (output_bfd
, info
,
3582 /* Assume this is a call protected by other code that
3583 detect the symbol is undefined. If this is the case,
3584 we can safely ignore the overflow. If not, the
3585 program is hosed anyway, and a little warning isn't
3587 if (h
->root
.type
== bfd_link_hash_undefweak
3588 && howto
->pc_relative
)
3595 name
= bfd_elf_string_from_elf_section (input_bfd
,
3596 symtab_hdr
->sh_link
,
3601 name
= bfd_section_name (input_bfd
, sec
);
3603 if (! ((*info
->callbacks
->reloc_overflow
)
3604 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
3605 (bfd_vma
) 0, input_bfd
, input_section
,
3617 /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
3618 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
3619 is the offset of the associated .got.plt entry from
3620 _GLOBAL_OFFSET_TABLE_. */
3623 sparc_vxworks_build_plt_entry (bfd
*output_bfd
, struct bfd_link_info
*info
,
3624 bfd_vma plt_offset
, bfd_vma plt_index
,
3628 const bfd_vma
*plt_entry
;
3629 struct _bfd_sparc_elf_link_hash_table
*htab
;
3631 Elf_Internal_Rela rela
;
3633 htab
= _bfd_sparc_elf_hash_table (info
);
3636 plt_entry
= sparc_vxworks_shared_plt_entry
;
3641 plt_entry
= sparc_vxworks_exec_plt_entry
;
3642 got_base
= (htab
->elf
.hgot
->root
.u
.def
.value
3643 + htab
->elf
.hgot
->root
.u
.def
.section
->output_offset
3644 + htab
->elf
.hgot
->root
.u
.def
.section
->output_section
->vma
);
3647 /* Fill in the entry in the procedure linkage table. */
3648 bfd_put_32 (output_bfd
, plt_entry
[0] + ((got_base
+ got_offset
) >> 10),
3649 htab
->splt
->contents
+ plt_offset
);
3650 bfd_put_32 (output_bfd
, plt_entry
[1] + ((got_base
+ got_offset
) & 0x3ff),
3651 htab
->splt
->contents
+ plt_offset
+ 4);
3652 bfd_put_32 (output_bfd
, plt_entry
[2],
3653 htab
->splt
->contents
+ plt_offset
+ 8);
3654 bfd_put_32 (output_bfd
, plt_entry
[3],
3655 htab
->splt
->contents
+ plt_offset
+ 12);
3656 bfd_put_32 (output_bfd
, plt_entry
[4],
3657 htab
->splt
->contents
+ plt_offset
+ 16);
3658 bfd_put_32 (output_bfd
, plt_entry
[5] + (plt_index
>> 10),
3659 htab
->splt
->contents
+ plt_offset
+ 20);
3660 /* PC-relative displacement for a branch to the start of
3662 bfd_put_32 (output_bfd
, plt_entry
[6] + (((-plt_offset
- 24) >> 2)
3664 htab
->splt
->contents
+ plt_offset
+ 24);
3665 bfd_put_32 (output_bfd
, plt_entry
[7] + (plt_index
& 0x3ff),
3666 htab
->splt
->contents
+ plt_offset
+ 28);
3668 /* Fill in the .got.plt entry, pointing initially at the
3669 second half of the PLT entry. */
3670 BFD_ASSERT (htab
->sgotplt
!= NULL
);
3671 bfd_put_32 (output_bfd
,
3672 htab
->splt
->output_section
->vma
3673 + htab
->splt
->output_offset
3675 htab
->sgotplt
->contents
+ got_offset
);
3677 /* Add relocations to .rela.plt.unloaded. */
3680 loc
= (htab
->srelplt2
->contents
3681 + (2 + 3 * plt_index
) * sizeof (Elf32_External_Rela
));
3683 /* Relocate the initial sethi. */
3684 rela
.r_offset
= (htab
->splt
->output_section
->vma
3685 + htab
->splt
->output_offset
3687 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_SPARC_HI22
);
3688 rela
.r_addend
= got_offset
;
3689 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3690 loc
+= sizeof (Elf32_External_Rela
);
3692 /* Likewise the following or. */
3694 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_SPARC_LO10
);
3695 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3696 loc
+= sizeof (Elf32_External_Rela
);
3698 /* Relocate the .got.plt entry. */
3699 rela
.r_offset
= (htab
->sgotplt
->output_section
->vma
3700 + htab
->sgotplt
->output_offset
3702 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hplt
->indx
, R_SPARC_32
);
3703 rela
.r_addend
= plt_offset
+ 20;
3704 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3708 /* Finish up dynamic symbol handling. We set the contents of various
3709 dynamic sections here. */
3712 _bfd_sparc_elf_finish_dynamic_symbol (bfd
*output_bfd
,
3713 struct bfd_link_info
*info
,
3714 struct elf_link_hash_entry
*h
,
3715 Elf_Internal_Sym
*sym
)
3718 struct _bfd_sparc_elf_link_hash_table
*htab
;
3719 const struct elf_backend_data
*bed
;
3721 htab
= _bfd_sparc_elf_hash_table (info
);
3722 dynobj
= htab
->elf
.dynobj
;
3723 bed
= get_elf_backend_data (output_bfd
);
3725 if (h
->plt
.offset
!= (bfd_vma
) -1)
3729 Elf_Internal_Rela rela
;
3731 bfd_vma r_offset
, got_offset
;
3734 /* This symbol has an entry in the PLT. Set it up. */
3736 BFD_ASSERT (h
->dynindx
!= -1);
3739 srela
= htab
->srelplt
;
3740 BFD_ASSERT (splt
!= NULL
&& srela
!= NULL
);
3742 /* Fill in the entry in the .rela.plt section. */
3743 if (htab
->is_vxworks
)
3745 /* Work out the index of this PLT entry. */
3746 rela_index
= ((h
->plt
.offset
- htab
->plt_header_size
)
3747 / htab
->plt_entry_size
);
3749 /* Calculate the offset of the associated .got.plt entry.
3750 The first three entries are reserved. */
3751 got_offset
= (rela_index
+ 3) * 4;
3753 sparc_vxworks_build_plt_entry (output_bfd
, info
, h
->plt
.offset
,
3754 rela_index
, got_offset
);
3757 /* On VxWorks, the relocation points to the .got.plt entry,
3758 not the .plt entry. */
3759 rela
.r_offset
= (htab
->sgotplt
->output_section
->vma
3760 + htab
->sgotplt
->output_offset
3766 /* Fill in the entry in the procedure linkage table. */
3767 rela_index
= SPARC_ELF_BUILD_PLT_ENTRY (htab
, output_bfd
, splt
,
3768 h
->plt
.offset
, splt
->size
,
3771 rela
.r_offset
= r_offset
3772 + (splt
->output_section
->vma
+ splt
->output_offset
);
3773 if (! ABI_64_P (output_bfd
)
3774 || h
->plt
.offset
< (PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
))
3780 rela
.r_addend
= (-(h
->plt
.offset
+ 4)
3781 - splt
->output_section
->vma
3782 - splt
->output_offset
);
3785 rela
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, h
->dynindx
, R_SPARC_JMP_SLOT
);
3787 /* Adjust for the first 4 reserved elements in the .plt section
3788 when setting the offset in the .rela.plt section.
3789 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
3790 thus .plt[4] has corresponding .rela.plt[0] and so on. */
3792 loc
= srela
->contents
;
3793 loc
+= rela_index
* bed
->s
->sizeof_rela
;
3794 bed
->s
->swap_reloca_out (output_bfd
, &rela
, loc
);
3796 if (!h
->def_regular
)
3798 /* Mark the symbol as undefined, rather than as defined in
3799 the .plt section. Leave the value alone. */
3800 sym
->st_shndx
= SHN_UNDEF
;
3801 /* If the symbol is weak, we do need to clear the value.
3802 Otherwise, the PLT entry would provide a definition for
3803 the symbol even if the symbol wasn't defined anywhere,
3804 and so the symbol would never be NULL. */
3805 if (!h
->ref_regular_nonweak
)
3810 if (h
->got
.offset
!= (bfd_vma
) -1
3811 && _bfd_sparc_elf_hash_entry(h
)->tls_type
!= GOT_TLS_GD
3812 && _bfd_sparc_elf_hash_entry(h
)->tls_type
!= GOT_TLS_IE
)
3816 Elf_Internal_Rela rela
;
3818 /* This symbol has an entry in the GOT. Set it up. */
3821 srela
= htab
->srelgot
;
3822 BFD_ASSERT (sgot
!= NULL
&& srela
!= NULL
);
3824 rela
.r_offset
= (sgot
->output_section
->vma
3825 + sgot
->output_offset
3826 + (h
->got
.offset
&~ (bfd_vma
) 1));
3828 /* If this is a -Bsymbolic link, and the symbol is defined
3829 locally, we just want to emit a RELATIVE reloc. Likewise if
3830 the symbol was forced to be local because of a version file.
3831 The entry in the global offset table will already have been
3832 initialized in the relocate_section function. */
3834 && (info
->symbolic
|| h
->dynindx
== -1)
3837 asection
*sec
= h
->root
.u
.def
.section
;
3838 rela
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, 0, R_SPARC_RELATIVE
);
3839 rela
.r_addend
= (h
->root
.u
.def
.value
3840 + sec
->output_section
->vma
3841 + sec
->output_offset
);
3845 rela
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, h
->dynindx
, R_SPARC_GLOB_DAT
);
3849 SPARC_ELF_PUT_WORD (htab
, output_bfd
, 0,
3850 sgot
->contents
+ (h
->got
.offset
& ~(bfd_vma
) 1));
3851 sparc_elf_append_rela (output_bfd
, srela
, &rela
);
3857 Elf_Internal_Rela rela
;
3859 /* This symbols needs a copy reloc. Set it up. */
3860 BFD_ASSERT (h
->dynindx
!= -1);
3862 s
= bfd_get_section_by_name (h
->root
.u
.def
.section
->owner
,
3864 BFD_ASSERT (s
!= NULL
);
3866 rela
.r_offset
= (h
->root
.u
.def
.value
3867 + h
->root
.u
.def
.section
->output_section
->vma
3868 + h
->root
.u
.def
.section
->output_offset
);
3869 rela
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, h
->dynindx
, R_SPARC_COPY
);
3871 sparc_elf_append_rela (output_bfd
, s
, &rela
);
3874 /* Mark some specially defined symbols as absolute. On VxWorks,
3875 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
3876 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
3877 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
3878 || (!htab
->is_vxworks
3879 && (h
== htab
->elf
.hgot
|| h
== htab
->elf
.hplt
)))
3880 sym
->st_shndx
= SHN_ABS
;
3885 /* Finish up the dynamic sections. */
3888 sparc_finish_dyn (bfd
*output_bfd
, struct bfd_link_info
*info
,
3889 bfd
*dynobj
, asection
*sdyn
,
3890 asection
*splt ATTRIBUTE_UNUSED
)
3892 struct _bfd_sparc_elf_link_hash_table
*htab
;
3893 const struct elf_backend_data
*bed
;
3894 bfd_byte
*dyncon
, *dynconend
;
3896 int stt_regidx
= -1;
3897 bfd_boolean abi_64_p
;
3899 htab
= _bfd_sparc_elf_hash_table (info
);
3900 bed
= get_elf_backend_data (output_bfd
);
3901 dynsize
= bed
->s
->sizeof_dyn
;
3902 dynconend
= sdyn
->contents
+ sdyn
->size
;
3903 abi_64_p
= ABI_64_P (output_bfd
);
3904 for (dyncon
= sdyn
->contents
; dyncon
< dynconend
; dyncon
+= dynsize
)
3906 Elf_Internal_Dyn dyn
;
3910 bed
->s
->swap_dyn_in (dynobj
, dyncon
, &dyn
);
3912 if (htab
->is_vxworks
&& dyn
.d_tag
== DT_RELASZ
)
3914 /* On VxWorks, DT_RELASZ should not include the relocations
3918 dyn
.d_un
.d_val
-= htab
->srelplt
->size
;
3919 bed
->s
->swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3922 else if (htab
->is_vxworks
&& dyn
.d_tag
== DT_PLTGOT
)
3924 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
3925 not to the start of the PLT. */
3928 dyn
.d_un
.d_val
= (htab
->sgotplt
->output_section
->vma
3929 + htab
->sgotplt
->output_offset
);
3930 bed
->s
->swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3933 else if (htab
->is_vxworks
3934 && elf_vxworks_finish_dynamic_entry (output_bfd
, &dyn
))
3935 bed
->s
->swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3936 else if (abi_64_p
&& dyn
.d_tag
== DT_SPARC_REGISTER
)
3938 if (stt_regidx
== -1)
3941 _bfd_elf_link_lookup_local_dynindx (info
, output_bfd
, -1);
3942 if (stt_regidx
== -1)
3945 dyn
.d_un
.d_val
= stt_regidx
++;
3946 bed
->s
->swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3952 case DT_PLTGOT
: name
= ".plt"; size
= FALSE
; break;
3953 case DT_PLTRELSZ
: name
= ".rela.plt"; size
= TRUE
; break;
3954 case DT_JMPREL
: name
= ".rela.plt"; size
= FALSE
; break;
3955 default: name
= NULL
; size
= FALSE
; break;
3962 s
= bfd_get_section_by_name (output_bfd
, name
);
3968 dyn
.d_un
.d_ptr
= s
->vma
;
3970 dyn
.d_un
.d_val
= s
->size
;
3972 bed
->s
->swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3979 /* Install the first PLT entry in a VxWorks executable and make sure that
3980 .rela.plt.unloaded relocations have the correct symbol indexes. */
3983 sparc_vxworks_finish_exec_plt (bfd
*output_bfd
, struct bfd_link_info
*info
)
3985 struct _bfd_sparc_elf_link_hash_table
*htab
;
3986 Elf_Internal_Rela rela
;
3990 htab
= _bfd_sparc_elf_hash_table (info
);
3992 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
3993 got_base
= (htab
->elf
.hgot
->root
.u
.def
.section
->output_section
->vma
3994 + htab
->elf
.hgot
->root
.u
.def
.section
->output_offset
3995 + htab
->elf
.hgot
->root
.u
.def
.value
);
3997 /* Install the initial PLT entry. */
3998 bfd_put_32 (output_bfd
,
3999 sparc_vxworks_exec_plt0_entry
[0] + ((got_base
+ 8) >> 10),
4000 htab
->splt
->contents
);
4001 bfd_put_32 (output_bfd
,
4002 sparc_vxworks_exec_plt0_entry
[1] + ((got_base
+ 8) & 0x3ff),
4003 htab
->splt
->contents
+ 4);
4004 bfd_put_32 (output_bfd
,
4005 sparc_vxworks_exec_plt0_entry
[2],
4006 htab
->splt
->contents
+ 8);
4007 bfd_put_32 (output_bfd
,
4008 sparc_vxworks_exec_plt0_entry
[3],
4009 htab
->splt
->contents
+ 12);
4010 bfd_put_32 (output_bfd
,
4011 sparc_vxworks_exec_plt0_entry
[4],
4012 htab
->splt
->contents
+ 16);
4014 loc
= htab
->srelplt2
->contents
;
4016 /* Add an unloaded relocation for the initial entry's "sethi". */
4017 rela
.r_offset
= (htab
->splt
->output_section
->vma
4018 + htab
->splt
->output_offset
);
4019 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_SPARC_HI22
);
4021 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4022 loc
+= sizeof (Elf32_External_Rela
);
4024 /* Likewise the following "or". */
4026 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_SPARC_LO10
);
4027 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
4028 loc
+= sizeof (Elf32_External_Rela
);
4030 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
4031 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
4032 in which symbols were output. */
4033 while (loc
< htab
->srelplt2
->contents
+ htab
->srelplt2
->size
)
4035 Elf_Internal_Rela rel
;
4037 /* The entry's initial "sethi" (against _G_O_T_). */
4038 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
4039 rel
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_SPARC_HI22
);
4040 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
4041 loc
+= sizeof (Elf32_External_Rela
);
4043 /* The following "or" (also against _G_O_T_). */
4044 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
4045 rel
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_SPARC_LO10
);
4046 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
4047 loc
+= sizeof (Elf32_External_Rela
);
4049 /* The .got.plt entry (against _P_L_T_). */
4050 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
4051 rel
.r_info
= ELF32_R_INFO (htab
->elf
.hplt
->indx
, R_SPARC_32
);
4052 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
4053 loc
+= sizeof (Elf32_External_Rela
);
4057 /* Install the first PLT entry in a VxWorks shared object. */
4060 sparc_vxworks_finish_shared_plt (bfd
*output_bfd
, struct bfd_link_info
*info
)
4062 struct _bfd_sparc_elf_link_hash_table
*htab
;
4065 htab
= _bfd_sparc_elf_hash_table (info
);
4066 for (i
= 0; i
< ARRAY_SIZE (sparc_vxworks_shared_plt0_entry
); i
++)
4067 bfd_put_32 (output_bfd
, sparc_vxworks_shared_plt0_entry
[i
],
4068 htab
->splt
->contents
+ i
* 4);
4072 _bfd_sparc_elf_finish_dynamic_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
4076 struct _bfd_sparc_elf_link_hash_table
*htab
;
4078 htab
= _bfd_sparc_elf_hash_table (info
);
4079 dynobj
= htab
->elf
.dynobj
;
4081 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
4083 if (elf_hash_table (info
)->dynamic_sections_created
)
4087 splt
= bfd_get_section_by_name (dynobj
, ".plt");
4088 BFD_ASSERT (splt
!= NULL
&& sdyn
!= NULL
);
4090 if (!sparc_finish_dyn (output_bfd
, info
, dynobj
, sdyn
, splt
))
4093 /* Initialize the contents of the .plt section. */
4096 if (htab
->is_vxworks
)
4099 sparc_vxworks_finish_shared_plt (output_bfd
, info
);
4101 sparc_vxworks_finish_exec_plt (output_bfd
, info
);
4105 memset (splt
->contents
, 0, htab
->plt_header_size
);
4106 if (!ABI_64_P (output_bfd
))
4107 bfd_put_32 (output_bfd
, (bfd_vma
) SPARC_NOP
,
4108 splt
->contents
+ splt
->size
- 4);
4112 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
4113 = (htab
->is_vxworks
|| !ABI_64_P (output_bfd
))
4114 ? 0 : htab
->plt_entry_size
;
4117 /* Set the first entry in the global offset table to the address of
4118 the dynamic section. */
4119 if (htab
->sgot
&& htab
->sgot
->size
> 0)
4121 bfd_vma val
= (sdyn
?
4122 sdyn
->output_section
->vma
+ sdyn
->output_offset
:
4125 SPARC_ELF_PUT_WORD (htab
, output_bfd
, val
, htab
->sgot
->contents
);
4129 elf_section_data (htab
->sgot
->output_section
)->this_hdr
.sh_entsize
=
4130 SPARC_ELF_WORD_BYTES (htab
);
4136 /* Set the right machine number for a SPARC ELF file. */
4139 _bfd_sparc_elf_object_p (bfd
*abfd
)
4141 if (ABI_64_P (abfd
))
4143 unsigned long mach
= bfd_mach_sparc_v9
;
4145 if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_SUN_US3
)
4146 mach
= bfd_mach_sparc_v9b
;
4147 else if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_SUN_US1
)
4148 mach
= bfd_mach_sparc_v9a
;
4149 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
, mach
);
4153 if (elf_elfheader (abfd
)->e_machine
== EM_SPARC32PLUS
)
4155 if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_SUN_US3
)
4156 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
,
4157 bfd_mach_sparc_v8plusb
);
4158 else if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_SUN_US1
)
4159 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
,
4160 bfd_mach_sparc_v8plusa
);
4161 else if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_32PLUS
)
4162 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
,
4163 bfd_mach_sparc_v8plus
);
4167 else if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_LEDATA
)
4168 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
,
4169 bfd_mach_sparc_sparclite_le
);
4171 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
, bfd_mach_sparc
);
4175 /* Return address for Ith PLT stub in section PLT, for relocation REL
4176 or (bfd_vma) -1 if it should not be included. */
4179 _bfd_sparc_elf_plt_sym_val (bfd_vma i
, const asection
*plt
, const arelent
*rel
)
4181 if (ABI_64_P (plt
->owner
))
4185 i
+= PLT64_HEADER_SIZE
/ PLT64_ENTRY_SIZE
;
4186 if (i
< PLT64_LARGE_THRESHOLD
)
4187 return plt
->vma
+ i
* PLT64_ENTRY_SIZE
;
4189 j
= (i
- PLT64_LARGE_THRESHOLD
) % 160;
4191 return plt
->vma
+ i
* PLT64_ENTRY_SIZE
+ j
* 4 * 6;
4194 return rel
->address
;