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
)
263 static reloc_howto_type sparc_vtinherit_howto
=
264 HOWTO (R_SPARC_GNU_VTINHERIT
, 0,2,0,FALSE
,0,complain_overflow_dont
, NULL
, "R_SPARC_GNU_VTINHERIT", FALSE
,0, 0, FALSE
);
265 static reloc_howto_type sparc_vtentry_howto
=
266 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
);
267 static reloc_howto_type sparc_rev32_howto
=
268 HOWTO(R_SPARC_REV32
, 0,2,32,FALSE
,0,complain_overflow_bitfield
,bfd_elf_generic_reloc
, "R_SPARC_REV32", FALSE
,0,0xffffffff,TRUE
);
270 struct elf_reloc_map
{
271 bfd_reloc_code_real_type bfd_reloc_val
;
272 unsigned char elf_reloc_val
;
275 static const struct elf_reloc_map sparc_reloc_map
[] =
277 { BFD_RELOC_NONE
, R_SPARC_NONE
, },
278 { BFD_RELOC_16
, R_SPARC_16
, },
279 { BFD_RELOC_16_PCREL
, R_SPARC_DISP16
},
280 { BFD_RELOC_8
, R_SPARC_8
},
281 { BFD_RELOC_8_PCREL
, R_SPARC_DISP8
},
282 { BFD_RELOC_CTOR
, R_SPARC_64
},
283 { BFD_RELOC_32
, R_SPARC_32
},
284 { BFD_RELOC_32_PCREL
, R_SPARC_DISP32
},
285 { BFD_RELOC_HI22
, R_SPARC_HI22
},
286 { BFD_RELOC_LO10
, R_SPARC_LO10
, },
287 { BFD_RELOC_32_PCREL_S2
, R_SPARC_WDISP30
},
288 { BFD_RELOC_64_PCREL
, R_SPARC_DISP64
},
289 { BFD_RELOC_SPARC22
, R_SPARC_22
},
290 { BFD_RELOC_SPARC13
, R_SPARC_13
},
291 { BFD_RELOC_SPARC_GOT10
, R_SPARC_GOT10
},
292 { BFD_RELOC_SPARC_GOT13
, R_SPARC_GOT13
},
293 { BFD_RELOC_SPARC_GOT22
, R_SPARC_GOT22
},
294 { BFD_RELOC_SPARC_PC10
, R_SPARC_PC10
},
295 { BFD_RELOC_SPARC_PC22
, R_SPARC_PC22
},
296 { BFD_RELOC_SPARC_WPLT30
, R_SPARC_WPLT30
},
297 { BFD_RELOC_SPARC_COPY
, R_SPARC_COPY
},
298 { BFD_RELOC_SPARC_GLOB_DAT
, R_SPARC_GLOB_DAT
},
299 { BFD_RELOC_SPARC_JMP_SLOT
, R_SPARC_JMP_SLOT
},
300 { BFD_RELOC_SPARC_RELATIVE
, R_SPARC_RELATIVE
},
301 { BFD_RELOC_SPARC_WDISP22
, R_SPARC_WDISP22
},
302 { BFD_RELOC_SPARC_UA16
, R_SPARC_UA16
},
303 { BFD_RELOC_SPARC_UA32
, R_SPARC_UA32
},
304 { BFD_RELOC_SPARC_UA64
, R_SPARC_UA64
},
305 { BFD_RELOC_SPARC_10
, R_SPARC_10
},
306 { BFD_RELOC_SPARC_11
, R_SPARC_11
},
307 { BFD_RELOC_SPARC_64
, R_SPARC_64
},
308 { BFD_RELOC_SPARC_OLO10
, R_SPARC_OLO10
},
309 { BFD_RELOC_SPARC_HH22
, R_SPARC_HH22
},
310 { BFD_RELOC_SPARC_HM10
, R_SPARC_HM10
},
311 { BFD_RELOC_SPARC_LM22
, R_SPARC_LM22
},
312 { BFD_RELOC_SPARC_PC_HH22
, R_SPARC_PC_HH22
},
313 { BFD_RELOC_SPARC_PC_HM10
, R_SPARC_PC_HM10
},
314 { BFD_RELOC_SPARC_PC_LM22
, R_SPARC_PC_LM22
},
315 { BFD_RELOC_SPARC_WDISP16
, R_SPARC_WDISP16
},
316 { BFD_RELOC_SPARC_WDISP19
, R_SPARC_WDISP19
},
317 { BFD_RELOC_SPARC_7
, R_SPARC_7
},
318 { BFD_RELOC_SPARC_5
, R_SPARC_5
},
319 { BFD_RELOC_SPARC_6
, R_SPARC_6
},
320 { BFD_RELOC_SPARC_DISP64
, R_SPARC_DISP64
},
321 { BFD_RELOC_SPARC_TLS_GD_HI22
, R_SPARC_TLS_GD_HI22
},
322 { BFD_RELOC_SPARC_TLS_GD_LO10
, R_SPARC_TLS_GD_LO10
},
323 { BFD_RELOC_SPARC_TLS_GD_ADD
, R_SPARC_TLS_GD_ADD
},
324 { BFD_RELOC_SPARC_TLS_GD_CALL
, R_SPARC_TLS_GD_CALL
},
325 { BFD_RELOC_SPARC_TLS_LDM_HI22
, R_SPARC_TLS_LDM_HI22
},
326 { BFD_RELOC_SPARC_TLS_LDM_LO10
, R_SPARC_TLS_LDM_LO10
},
327 { BFD_RELOC_SPARC_TLS_LDM_ADD
, R_SPARC_TLS_LDM_ADD
},
328 { BFD_RELOC_SPARC_TLS_LDM_CALL
, R_SPARC_TLS_LDM_CALL
},
329 { BFD_RELOC_SPARC_TLS_LDO_HIX22
, R_SPARC_TLS_LDO_HIX22
},
330 { BFD_RELOC_SPARC_TLS_LDO_LOX10
, R_SPARC_TLS_LDO_LOX10
},
331 { BFD_RELOC_SPARC_TLS_LDO_ADD
, R_SPARC_TLS_LDO_ADD
},
332 { BFD_RELOC_SPARC_TLS_IE_HI22
, R_SPARC_TLS_IE_HI22
},
333 { BFD_RELOC_SPARC_TLS_IE_LO10
, R_SPARC_TLS_IE_LO10
},
334 { BFD_RELOC_SPARC_TLS_IE_LD
, R_SPARC_TLS_IE_LD
},
335 { BFD_RELOC_SPARC_TLS_IE_LDX
, R_SPARC_TLS_IE_LDX
},
336 { BFD_RELOC_SPARC_TLS_IE_ADD
, R_SPARC_TLS_IE_ADD
},
337 { BFD_RELOC_SPARC_TLS_LE_HIX22
, R_SPARC_TLS_LE_HIX22
},
338 { BFD_RELOC_SPARC_TLS_LE_LOX10
, R_SPARC_TLS_LE_LOX10
},
339 { BFD_RELOC_SPARC_TLS_DTPMOD32
, R_SPARC_TLS_DTPMOD32
},
340 { BFD_RELOC_SPARC_TLS_DTPMOD64
, R_SPARC_TLS_DTPMOD64
},
341 { BFD_RELOC_SPARC_TLS_DTPOFF32
, R_SPARC_TLS_DTPOFF32
},
342 { BFD_RELOC_SPARC_TLS_DTPOFF64
, R_SPARC_TLS_DTPOFF64
},
343 { BFD_RELOC_SPARC_TLS_TPOFF32
, R_SPARC_TLS_TPOFF32
},
344 { BFD_RELOC_SPARC_TLS_TPOFF64
, R_SPARC_TLS_TPOFF64
},
345 { BFD_RELOC_SPARC_PLT32
, R_SPARC_PLT32
},
346 { BFD_RELOC_SPARC_PLT64
, R_SPARC_PLT64
},
347 { BFD_RELOC_SPARC_HIX22
, R_SPARC_HIX22
},
348 { BFD_RELOC_SPARC_LOX10
, R_SPARC_LOX10
},
349 { BFD_RELOC_SPARC_H44
, R_SPARC_H44
},
350 { BFD_RELOC_SPARC_M44
, R_SPARC_M44
},
351 { BFD_RELOC_SPARC_L44
, R_SPARC_L44
},
352 { BFD_RELOC_SPARC_REGISTER
, R_SPARC_REGISTER
},
353 { BFD_RELOC_VTABLE_INHERIT
, R_SPARC_GNU_VTINHERIT
},
354 { BFD_RELOC_VTABLE_ENTRY
, R_SPARC_GNU_VTENTRY
},
355 { BFD_RELOC_SPARC_REV32
, R_SPARC_REV32
},
359 _bfd_sparc_elf_reloc_type_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
360 bfd_reloc_code_real_type code
)
366 case BFD_RELOC_VTABLE_INHERIT
:
367 return &sparc_vtinherit_howto
;
369 case BFD_RELOC_VTABLE_ENTRY
:
370 return &sparc_vtentry_howto
;
372 case BFD_RELOC_SPARC_REV32
:
373 return &sparc_rev32_howto
;
377 i
< sizeof (sparc_reloc_map
) / sizeof (struct elf_reloc_map
);
380 if (sparc_reloc_map
[i
].bfd_reloc_val
== code
)
381 return (_bfd_sparc_elf_howto_table
382 + (int) sparc_reloc_map
[i
].elf_reloc_val
);
385 bfd_set_error (bfd_error_bad_value
);
390 _bfd_sparc_elf_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
396 i
< (sizeof (_bfd_sparc_elf_howto_table
)
397 / sizeof (_bfd_sparc_elf_howto_table
[0]));
399 if (_bfd_sparc_elf_howto_table
[i
].name
!= NULL
400 && strcasecmp (_bfd_sparc_elf_howto_table
[i
].name
, r_name
) == 0)
401 return &_bfd_sparc_elf_howto_table
[i
];
403 if (strcasecmp (sparc_vtinherit_howto
.name
, r_name
) == 0)
404 return &sparc_vtinherit_howto
;
405 if (strcasecmp (sparc_vtentry_howto
.name
, r_name
) == 0)
406 return &sparc_vtentry_howto
;
407 if (strcasecmp (sparc_rev32_howto
.name
, r_name
) == 0)
408 return &sparc_rev32_howto
;
414 _bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type
)
418 case R_SPARC_GNU_VTINHERIT
:
419 return &sparc_vtinherit_howto
;
421 case R_SPARC_GNU_VTENTRY
:
422 return &sparc_vtentry_howto
;
425 return &sparc_rev32_howto
;
428 if (r_type
>= (unsigned int) R_SPARC_max_std
)
430 (*_bfd_error_handler
) (_("invalid relocation type %d"),
432 r_type
= R_SPARC_NONE
;
434 return &_bfd_sparc_elf_howto_table
[r_type
];
438 /* Both 32-bit and 64-bit sparc encode this in an identical manner,
439 so just take advantage of that. */
440 #define SPARC_ELF_R_TYPE(r_info) \
444 _bfd_sparc_elf_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*cache_ptr
,
445 Elf_Internal_Rela
*dst
)
447 unsigned int r_type
= SPARC_ELF_R_TYPE (dst
->r_info
);
449 cache_ptr
->howto
= _bfd_sparc_elf_info_to_howto_ptr (r_type
);
453 /* The nop opcode we use. */
454 #define SPARC_NOP 0x01000000
456 #define SPARC_INSN_BYTES 4
458 /* The SPARC linker needs to keep track of the number of relocs that it
459 decides to copy as dynamic relocs in check_relocs for each symbol.
460 This is so that it can later discard them if they are found to be
461 unnecessary. We store the information in a field extending the
462 regular ELF linker hash table. */
464 struct _bfd_sparc_elf_dyn_relocs
466 struct _bfd_sparc_elf_dyn_relocs
*next
;
468 /* The input section of the reloc. */
471 /* Total number of relocs copied for the input section. */
474 /* Number of pc-relative relocs copied for the input section. */
475 bfd_size_type pc_count
;
478 /* SPARC ELF linker hash entry. */
480 struct _bfd_sparc_elf_link_hash_entry
482 struct elf_link_hash_entry elf
;
484 /* Track dynamic relocs copied for this symbol. */
485 struct _bfd_sparc_elf_dyn_relocs
*dyn_relocs
;
487 #define GOT_UNKNOWN 0
491 unsigned char tls_type
;
494 #define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
496 struct _bfd_sparc_elf_obj_tdata
498 struct elf_obj_tdata root
;
500 /* tls_type for each local got entry. */
501 char *local_got_tls_type
;
503 /* TRUE if TLS GD relocs has been seen for this object. */
504 bfd_boolean has_tlsgd
;
507 #define _bfd_sparc_elf_tdata(abfd) \
508 ((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
510 #define _bfd_sparc_elf_local_got_tls_type(abfd) \
511 (_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
513 #define is_sparc_elf(bfd) \
514 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
515 && elf_tdata (bfd) != NULL \
516 && elf_object_id (bfd) == SPARC_ELF_TDATA)
519 _bfd_sparc_elf_mkobject (bfd
*abfd
)
521 return bfd_elf_allocate_object (abfd
, sizeof (struct _bfd_sparc_elf_obj_tdata
),
526 sparc_put_word_32 (bfd
*bfd
, bfd_vma val
, void *ptr
)
528 bfd_put_32 (bfd
, val
, ptr
);
532 sparc_put_word_64 (bfd
*bfd
, bfd_vma val
, void *ptr
)
534 bfd_put_64 (bfd
, val
, ptr
);
538 sparc_elf_append_rela (bfd
*abfd
, asection
*s
, Elf_Internal_Rela
*rel
)
540 const struct elf_backend_data
*bed
;
543 bed
= get_elf_backend_data (abfd
);
544 loc
= s
->contents
+ (s
->reloc_count
++ * bed
->s
->sizeof_rela
);
545 bed
->s
->swap_reloca_out (abfd
, rel
, loc
);
549 sparc_elf_r_info_64 (Elf_Internal_Rela
*in_rel ATTRIBUTE_UNUSED
,
550 bfd_vma index ATTRIBUTE_UNUSED
,
551 bfd_vma type ATTRIBUTE_UNUSED
)
553 return ELF64_R_INFO (index
,
555 ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel
->r_info
),
560 sparc_elf_r_info_32 (Elf_Internal_Rela
*in_rel ATTRIBUTE_UNUSED
,
561 bfd_vma index
, bfd_vma type
)
563 return ELF32_R_INFO (index
, type
);
567 sparc_elf_r_symndx_64 (bfd_vma r_info
)
569 bfd_vma r_symndx
= ELF32_R_SYM (r_info
);
570 return (r_symndx
>> 24);
574 sparc_elf_r_symndx_32 (bfd_vma r_info
)
576 return ELF32_R_SYM (r_info
);
581 #define PLT32_ENTRY_SIZE 12
582 #define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
584 /* The first four entries in a 32-bit procedure linkage table are reserved,
585 and the initial contents are unimportant (we zero them out).
586 Subsequent entries look like this. See the SVR4 ABI SPARC
587 supplement to see how this works. */
589 /* sethi %hi(.-.plt0),%g1. We fill in the address later. */
590 #define PLT32_ENTRY_WORD0 0x03000000
591 /* b,a .plt0. We fill in the offset later. */
592 #define PLT32_ENTRY_WORD1 0x30800000
594 #define PLT32_ENTRY_WORD2 SPARC_NOP
597 sparc32_plt_entry_build (bfd
*output_bfd
, asection
*splt
, bfd_vma offset
,
598 bfd_vma max ATTRIBUTE_UNUSED
,
601 bfd_put_32 (output_bfd
,
602 PLT32_ENTRY_WORD0
+ offset
,
603 splt
->contents
+ offset
);
604 bfd_put_32 (output_bfd
,
606 + (((- (offset
+ 4)) >> 2) & 0x3fffff)),
607 splt
->contents
+ offset
+ 4);
608 bfd_put_32 (output_bfd
, (bfd_vma
) PLT32_ENTRY_WORD2
,
609 splt
->contents
+ offset
+ 8);
613 return offset
/ PLT32_ENTRY_SIZE
- 4;
616 /* Both the headers and the entries are icache aligned. */
617 #define PLT64_ENTRY_SIZE 32
618 #define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
619 #define PLT64_LARGE_THRESHOLD 32768
622 sparc64_plt_entry_build (bfd
*output_bfd
, asection
*splt
, bfd_vma offset
,
623 bfd_vma max
, bfd_vma
*r_offset
)
625 unsigned char *entry
= splt
->contents
+ offset
;
626 const unsigned int nop
= SPARC_NOP
;
629 if (offset
< (PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
))
631 unsigned int sethi
, ba
;
635 index
= (offset
/ PLT64_ENTRY_SIZE
);
637 sethi
= 0x03000000 | (index
* PLT64_ENTRY_SIZE
);
639 | (((splt
->contents
+ PLT64_ENTRY_SIZE
) - (entry
+ 4)) / 4 & 0x7ffff);
641 bfd_put_32 (output_bfd
, (bfd_vma
) sethi
, entry
);
642 bfd_put_32 (output_bfd
, (bfd_vma
) ba
, entry
+ 4);
643 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 8);
644 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 12);
645 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 16);
646 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 20);
647 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 24);
648 bfd_put_32 (output_bfd
, (bfd_vma
) nop
, entry
+ 28);
654 int block
, last_block
, ofs
, last_ofs
, chunks_this_block
;
655 const int insn_chunk_size
= (6 * 4);
656 const int ptr_chunk_size
= (1 * 8);
657 const int entries_per_block
= 160;
658 const int block_size
= entries_per_block
* (insn_chunk_size
661 /* Entries 32768 and higher are grouped into blocks of 160.
662 The blocks are further subdivided into 160 sequences of
663 6 instructions and 160 pointers. If a block does not require
664 the full 160 entries, let's say it requires N, then there
665 will be N sequences of 6 instructions and N pointers. */
667 offset
-= (PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
);
668 max
-= (PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
);
670 block
= offset
/ block_size
;
671 last_block
= max
/ block_size
;
672 if (block
!= last_block
)
674 chunks_this_block
= 160;
678 last_ofs
= max
% block_size
;
679 chunks_this_block
= last_ofs
/ (insn_chunk_size
+ ptr_chunk_size
);
682 ofs
= offset
% block_size
;
684 index
= (PLT64_LARGE_THRESHOLD
+
686 (ofs
/ insn_chunk_size
));
689 + (PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
)
690 + (block
* block_size
)
691 + (chunks_this_block
* insn_chunk_size
)
692 + (ofs
/ insn_chunk_size
) * ptr_chunk_size
;
694 *r_offset
= (bfd_vma
) (ptr
- splt
->contents
);
696 ldx
= 0xc25be000 | ((ptr
- (entry
+4)) & 0x1fff);
704 bfd_put_32 (output_bfd
, (bfd_vma
) 0x8a10000f, entry
);
705 bfd_put_32 (output_bfd
, (bfd_vma
) 0x40000002, entry
+ 4);
706 bfd_put_32 (output_bfd
, (bfd_vma
) SPARC_NOP
, entry
+ 8);
707 bfd_put_32 (output_bfd
, (bfd_vma
) ldx
, entry
+ 12);
708 bfd_put_32 (output_bfd
, (bfd_vma
) 0x83c3c001, entry
+ 16);
709 bfd_put_32 (output_bfd
, (bfd_vma
) 0x9e100005, entry
+ 20);
711 bfd_put_64 (output_bfd
, (bfd_vma
) (splt
->contents
- (entry
+ 4)), ptr
);
717 /* The format of the first PLT entry in a VxWorks executable. */
718 static const bfd_vma sparc_vxworks_exec_plt0_entry
[] =
720 0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
721 0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
722 0xc4008000, /* ld [ %g2 ], %g2 */
723 0x81c08000, /* jmp %g2 */
727 /* The format of subsequent PLT entries. */
728 static const bfd_vma sparc_vxworks_exec_plt_entry
[] =
730 0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
731 0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
732 0xc2004000, /* ld [ %g1 ], %g1 */
733 0x81c04000, /* jmp %g1 */
734 0x01000000, /* nop */
735 0x03000000, /* sethi %hi(f@pltindex), %g1 */
736 0x10800000, /* b _PLT_resolve */
737 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
740 /* The format of the first PLT entry in a VxWorks shared object. */
741 static const bfd_vma sparc_vxworks_shared_plt0_entry
[] =
743 0xc405e008, /* ld [ %l7 + 8 ], %g2 */
744 0x81c08000, /* jmp %g2 */
748 /* The format of subsequent PLT entries. */
749 static const bfd_vma sparc_vxworks_shared_plt_entry
[] =
751 0x03000000, /* sethi %hi(f@got), %g1 */
752 0x82106000, /* or %g1, %lo(f@got), %g1 */
753 0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
754 0x81c04000, /* jmp %g1 */
755 0x01000000, /* nop */
756 0x03000000, /* sethi %hi(f@pltindex), %g1 */
757 0x10800000, /* b _PLT_resolve */
758 0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
761 #define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
762 htab->put_word(bfd, val, ptr)
764 #define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
765 htab->r_info(in_rel, index, type)
767 #define SPARC_ELF_R_SYMNDX(htab, r_info) \
768 htab->r_symndx(r_info)
770 #define SPARC_ELF_WORD_BYTES(htab) \
773 #define SPARC_ELF_RELA_BYTES(htab) \
776 #define SPARC_ELF_DTPOFF_RELOC(htab) \
779 #define SPARC_ELF_DTPMOD_RELOC(htab) \
782 #define SPARC_ELF_TPOFF_RELOC(htab) \
785 #define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
786 htab->build_plt_entry (obfd, splt, off, max, r_off)
788 /* Create an entry in an SPARC ELF linker hash table. */
790 static struct bfd_hash_entry
*
791 link_hash_newfunc (struct bfd_hash_entry
*entry
,
792 struct bfd_hash_table
*table
, const char *string
)
794 /* Allocate the structure if it has not already been allocated by a
798 entry
= bfd_hash_allocate (table
,
799 sizeof (struct _bfd_sparc_elf_link_hash_entry
));
804 /* Call the allocation method of the superclass. */
805 entry
= _bfd_elf_link_hash_newfunc (entry
, table
, string
);
808 struct _bfd_sparc_elf_link_hash_entry
*eh
;
810 eh
= (struct _bfd_sparc_elf_link_hash_entry
*) entry
;
811 eh
->dyn_relocs
= NULL
;
812 eh
->tls_type
= GOT_UNKNOWN
;
818 /* The name of the dynamic interpreter. This is put in the .interp
821 #define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
822 #define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
824 /* Create a SPARC ELF linker hash table. */
826 struct bfd_link_hash_table
*
827 _bfd_sparc_elf_link_hash_table_create (bfd
*abfd
)
829 struct _bfd_sparc_elf_link_hash_table
*ret
;
830 bfd_size_type amt
= sizeof (struct _bfd_sparc_elf_link_hash_table
);
832 ret
= (struct _bfd_sparc_elf_link_hash_table
*) bfd_zmalloc (amt
);
838 ret
->put_word
= sparc_put_word_64
;
839 ret
->r_info
= sparc_elf_r_info_64
;
840 ret
->r_symndx
= sparc_elf_r_symndx_64
;
841 ret
->dtpoff_reloc
= R_SPARC_TLS_DTPOFF64
;
842 ret
->dtpmod_reloc
= R_SPARC_TLS_DTPMOD64
;
843 ret
->tpoff_reloc
= R_SPARC_TLS_TPOFF64
;
844 ret
->word_align_power
= 3;
845 ret
->align_power_max
= 4;
846 ret
->bytes_per_word
= 8;
847 ret
->bytes_per_rela
= sizeof (Elf64_External_Rela
);
848 ret
->dynamic_interpreter
= ELF64_DYNAMIC_INTERPRETER
;
849 ret
->dynamic_interpreter_size
= sizeof ELF64_DYNAMIC_INTERPRETER
;
853 ret
->put_word
= sparc_put_word_32
;
854 ret
->r_info
= sparc_elf_r_info_32
;
855 ret
->r_symndx
= sparc_elf_r_symndx_32
;
856 ret
->dtpoff_reloc
= R_SPARC_TLS_DTPOFF32
;
857 ret
->dtpmod_reloc
= R_SPARC_TLS_DTPMOD32
;
858 ret
->tpoff_reloc
= R_SPARC_TLS_TPOFF32
;
859 ret
->word_align_power
= 2;
860 ret
->align_power_max
= 3;
861 ret
->bytes_per_word
= 4;
862 ret
->bytes_per_rela
= sizeof (Elf32_External_Rela
);
863 ret
->dynamic_interpreter
= ELF32_DYNAMIC_INTERPRETER
;
864 ret
->dynamic_interpreter_size
= sizeof ELF32_DYNAMIC_INTERPRETER
;
867 if (!_bfd_elf_link_hash_table_init (&ret
->elf
, abfd
, link_hash_newfunc
,
868 sizeof (struct _bfd_sparc_elf_link_hash_entry
)))
874 return &ret
->elf
.root
;
877 /* Create .got and .rela.got sections in DYNOBJ, and set up
878 shortcuts to them in our hash table. */
881 create_got_section (bfd
*dynobj
, struct bfd_link_info
*info
)
883 struct _bfd_sparc_elf_link_hash_table
*htab
;
885 if (! _bfd_elf_create_got_section (dynobj
, info
))
888 htab
= _bfd_sparc_elf_hash_table (info
);
889 htab
->sgot
= bfd_get_section_by_name (dynobj
, ".got");
890 BFD_ASSERT (htab
->sgot
!= NULL
);
892 htab
->srelgot
= bfd_make_section_with_flags (dynobj
, ".rela.got",
899 if (htab
->srelgot
== NULL
900 || ! bfd_set_section_alignment (dynobj
, htab
->srelgot
,
901 htab
->word_align_power
))
904 if (htab
->is_vxworks
)
906 htab
->sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
914 /* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
915 .rela.bss sections in DYNOBJ, and set up shortcuts to them in our
919 _bfd_sparc_elf_create_dynamic_sections (bfd
*dynobj
,
920 struct bfd_link_info
*info
)
922 struct _bfd_sparc_elf_link_hash_table
*htab
;
924 htab
= _bfd_sparc_elf_hash_table (info
);
925 if (!htab
->sgot
&& !create_got_section (dynobj
, info
))
928 if (!_bfd_elf_create_dynamic_sections (dynobj
, info
))
931 htab
->splt
= bfd_get_section_by_name (dynobj
, ".plt");
932 htab
->srelplt
= bfd_get_section_by_name (dynobj
, ".rela.plt");
933 htab
->sdynbss
= bfd_get_section_by_name (dynobj
, ".dynbss");
935 htab
->srelbss
= bfd_get_section_by_name (dynobj
, ".rela.bss");
937 if (htab
->is_vxworks
)
939 if (!elf_vxworks_create_dynamic_sections (dynobj
, info
, &htab
->srelplt2
))
943 htab
->plt_header_size
944 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry
);
946 = 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry
);
950 htab
->plt_header_size
951 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry
);
953 = 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry
);
958 if (ABI_64_P (dynobj
))
960 htab
->build_plt_entry
= sparc64_plt_entry_build
;
961 htab
->plt_header_size
= PLT64_HEADER_SIZE
;
962 htab
->plt_entry_size
= PLT64_ENTRY_SIZE
;
966 htab
->build_plt_entry
= sparc32_plt_entry_build
;
967 htab
->plt_header_size
= PLT32_HEADER_SIZE
;
968 htab
->plt_entry_size
= PLT32_ENTRY_SIZE
;
972 if (!htab
->splt
|| !htab
->srelplt
|| !htab
->sdynbss
973 || (!info
->shared
&& !htab
->srelbss
))
979 /* Copy the extra info we tack onto an elf_link_hash_entry. */
982 _bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
983 struct elf_link_hash_entry
*dir
,
984 struct elf_link_hash_entry
*ind
)
986 struct _bfd_sparc_elf_link_hash_entry
*edir
, *eind
;
988 edir
= (struct _bfd_sparc_elf_link_hash_entry
*) dir
;
989 eind
= (struct _bfd_sparc_elf_link_hash_entry
*) ind
;
991 if (eind
->dyn_relocs
!= NULL
)
993 if (edir
->dyn_relocs
!= NULL
)
995 struct _bfd_sparc_elf_dyn_relocs
**pp
;
996 struct _bfd_sparc_elf_dyn_relocs
*p
;
998 /* Add reloc counts against the indirect sym to the direct sym
999 list. Merge any entries against the same section. */
1000 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
; )
1002 struct _bfd_sparc_elf_dyn_relocs
*q
;
1004 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
1005 if (q
->sec
== p
->sec
)
1007 q
->pc_count
+= p
->pc_count
;
1008 q
->count
+= p
->count
;
1015 *pp
= edir
->dyn_relocs
;
1018 edir
->dyn_relocs
= eind
->dyn_relocs
;
1019 eind
->dyn_relocs
= NULL
;
1022 if (ind
->root
.type
== bfd_link_hash_indirect
1023 && dir
->got
.refcount
<= 0)
1025 edir
->tls_type
= eind
->tls_type
;
1026 eind
->tls_type
= GOT_UNKNOWN
;
1028 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
1032 sparc_elf_tls_transition (struct bfd_link_info
*info
, bfd
*abfd
,
1033 int r_type
, int is_local
)
1035 if (! ABI_64_P (abfd
)
1036 && r_type
== R_SPARC_TLS_GD_HI22
1037 && ! _bfd_sparc_elf_tdata (abfd
)->has_tlsgd
)
1038 r_type
= R_SPARC_REV32
;
1045 case R_SPARC_TLS_GD_HI22
:
1047 return R_SPARC_TLS_LE_HIX22
;
1048 return R_SPARC_TLS_IE_HI22
;
1049 case R_SPARC_TLS_GD_LO10
:
1051 return R_SPARC_TLS_LE_LOX10
;
1052 return R_SPARC_TLS_IE_LO10
;
1053 case R_SPARC_TLS_IE_HI22
:
1055 return R_SPARC_TLS_LE_HIX22
;
1057 case R_SPARC_TLS_IE_LO10
:
1059 return R_SPARC_TLS_LE_LOX10
;
1061 case R_SPARC_TLS_LDM_HI22
:
1062 return R_SPARC_TLS_LE_HIX22
;
1063 case R_SPARC_TLS_LDM_LO10
:
1064 return R_SPARC_TLS_LE_LOX10
;
1070 /* Look through the relocs for a section during the first phase, and
1071 allocate space in the global offset table or procedure linkage
1075 _bfd_sparc_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
1076 asection
*sec
, const Elf_Internal_Rela
*relocs
)
1078 struct _bfd_sparc_elf_link_hash_table
*htab
;
1079 Elf_Internal_Shdr
*symtab_hdr
;
1080 struct elf_link_hash_entry
**sym_hashes
;
1081 bfd_vma
*local_got_offsets
;
1082 const Elf_Internal_Rela
*rel
;
1083 const Elf_Internal_Rela
*rel_end
;
1086 bfd_boolean checked_tlsgd
= FALSE
;
1088 if (info
->relocatable
)
1091 htab
= _bfd_sparc_elf_hash_table (info
);
1092 symtab_hdr
= &elf_symtab_hdr (abfd
);
1093 sym_hashes
= elf_sym_hashes (abfd
);
1094 local_got_offsets
= elf_local_got_offsets (abfd
);
1098 if (ABI_64_P (abfd
))
1099 num_relocs
= NUM_SHDR_ENTRIES (& elf_section_data (sec
)->rel_hdr
);
1101 num_relocs
= sec
->reloc_count
;
1103 BFD_ASSERT (is_sparc_elf (abfd
) || num_relocs
== 0);
1105 rel_end
= relocs
+ num_relocs
;
1106 for (rel
= relocs
; rel
< rel_end
; rel
++)
1108 unsigned int r_type
;
1109 unsigned long r_symndx
;
1110 struct elf_link_hash_entry
*h
;
1112 r_symndx
= SPARC_ELF_R_SYMNDX (htab
, rel
->r_info
);
1113 r_type
= SPARC_ELF_R_TYPE (rel
->r_info
);
1115 if (r_symndx
>= NUM_SHDR_ENTRIES (symtab_hdr
))
1117 (*_bfd_error_handler
) (_("%B: bad symbol index: %d"),
1122 if (r_symndx
< symtab_hdr
->sh_info
)
1126 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
1127 while (h
->root
.type
== bfd_link_hash_indirect
1128 || h
->root
.type
== bfd_link_hash_warning
)
1129 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1132 /* Compatibility with old R_SPARC_REV32 reloc conflicting
1133 with R_SPARC_TLS_GD_HI22. */
1134 if (! ABI_64_P (abfd
) && ! checked_tlsgd
)
1137 case R_SPARC_TLS_GD_HI22
:
1139 const Elf_Internal_Rela
*relt
;
1141 for (relt
= rel
+ 1; relt
< rel_end
; relt
++)
1142 if (ELF32_R_TYPE (relt
->r_info
) == R_SPARC_TLS_GD_LO10
1143 || ELF32_R_TYPE (relt
->r_info
) == R_SPARC_TLS_GD_ADD
1144 || ELF32_R_TYPE (relt
->r_info
) == R_SPARC_TLS_GD_CALL
)
1146 checked_tlsgd
= TRUE
;
1147 _bfd_sparc_elf_tdata (abfd
)->has_tlsgd
= relt
< rel_end
;
1150 case R_SPARC_TLS_GD_LO10
:
1151 case R_SPARC_TLS_GD_ADD
:
1152 case R_SPARC_TLS_GD_CALL
:
1153 checked_tlsgd
= TRUE
;
1154 _bfd_sparc_elf_tdata (abfd
)->has_tlsgd
= TRUE
;
1158 r_type
= sparc_elf_tls_transition (info
, abfd
, r_type
, h
== NULL
);
1161 case R_SPARC_TLS_LDM_HI22
:
1162 case R_SPARC_TLS_LDM_LO10
:
1163 htab
->tls_ldm_got
.refcount
+= 1;
1166 case R_SPARC_TLS_LE_HIX22
:
1167 case R_SPARC_TLS_LE_LOX10
:
1172 case R_SPARC_TLS_IE_HI22
:
1173 case R_SPARC_TLS_IE_LO10
:
1175 info
->flags
|= DF_STATIC_TLS
;
1181 case R_SPARC_TLS_GD_HI22
:
1182 case R_SPARC_TLS_GD_LO10
:
1183 /* This symbol requires a global offset table entry. */
1185 int tls_type
, old_tls_type
;
1193 tls_type
= GOT_NORMAL
;
1195 case R_SPARC_TLS_GD_HI22
:
1196 case R_SPARC_TLS_GD_LO10
:
1197 tls_type
= GOT_TLS_GD
;
1199 case R_SPARC_TLS_IE_HI22
:
1200 case R_SPARC_TLS_IE_LO10
:
1201 tls_type
= GOT_TLS_IE
;
1207 h
->got
.refcount
+= 1;
1208 old_tls_type
= _bfd_sparc_elf_hash_entry(h
)->tls_type
;
1212 bfd_signed_vma
*local_got_refcounts
;
1214 /* This is a global offset table entry for a local symbol. */
1215 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1216 if (local_got_refcounts
== NULL
)
1220 size
= symtab_hdr
->sh_info
;
1221 size
*= (sizeof (bfd_signed_vma
) + sizeof(char));
1222 local_got_refcounts
= ((bfd_signed_vma
*)
1223 bfd_zalloc (abfd
, size
));
1224 if (local_got_refcounts
== NULL
)
1226 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
1227 _bfd_sparc_elf_local_got_tls_type (abfd
)
1228 = (char *) (local_got_refcounts
+ symtab_hdr
->sh_info
);
1230 local_got_refcounts
[r_symndx
] += 1;
1231 old_tls_type
= _bfd_sparc_elf_local_got_tls_type (abfd
) [r_symndx
];
1234 /* If a TLS symbol is accessed using IE at least once,
1235 there is no point to use dynamic model for it. */
1236 if (old_tls_type
!= tls_type
&& old_tls_type
!= GOT_UNKNOWN
1237 && (old_tls_type
!= GOT_TLS_GD
1238 || tls_type
!= GOT_TLS_IE
))
1240 if (old_tls_type
== GOT_TLS_IE
&& tls_type
== GOT_TLS_GD
)
1241 tls_type
= old_tls_type
;
1244 (*_bfd_error_handler
)
1245 (_("%B: `%s' accessed both as normal and thread local symbol"),
1246 abfd
, h
? h
->root
.root
.string
: "<local>");
1251 if (old_tls_type
!= tls_type
)
1254 _bfd_sparc_elf_hash_entry (h
)->tls_type
= tls_type
;
1256 _bfd_sparc_elf_local_got_tls_type (abfd
) [r_symndx
] = tls_type
;
1260 if (htab
->sgot
== NULL
)
1262 if (htab
->elf
.dynobj
== NULL
)
1263 htab
->elf
.dynobj
= abfd
;
1264 if (!create_got_section (htab
->elf
.dynobj
, info
))
1269 case R_SPARC_TLS_GD_CALL
:
1270 case R_SPARC_TLS_LDM_CALL
:
1273 /* These are basically R_SPARC_TLS_WPLT30 relocs against
1275 struct bfd_link_hash_entry
*bh
= NULL
;
1276 if (! _bfd_generic_link_add_one_symbol (info
, abfd
,
1277 "__tls_get_addr", 0,
1278 bfd_und_section_ptr
, 0,
1282 h
= (struct elf_link_hash_entry
*) bh
;
1289 case R_SPARC_WPLT30
:
1290 case R_SPARC_HIPLT22
:
1291 case R_SPARC_LOPLT10
:
1292 case R_SPARC_PCPLT32
:
1293 case R_SPARC_PCPLT22
:
1294 case R_SPARC_PCPLT10
:
1296 /* This symbol requires a procedure linkage table entry. We
1297 actually build the entry in adjust_dynamic_symbol,
1298 because this might be a case of linking PIC code without
1299 linking in any dynamic objects, in which case we don't
1300 need to generate a procedure linkage table after all. */
1304 if (! ABI_64_P (abfd
))
1306 /* The Solaris native assembler will generate a WPLT30
1307 reloc for a local symbol if you assemble a call from
1308 one section to another when using -K pic. We treat
1310 if (ELF32_R_TYPE (rel
->r_info
) == R_SPARC_PLT32
)
1315 /* It does not make sense to have a procedure linkage
1316 table entry for a local symbol. */
1317 bfd_set_error (bfd_error_bad_value
);
1326 this_r_type
= SPARC_ELF_R_TYPE (rel
->r_info
);
1327 if (this_r_type
== R_SPARC_PLT32
1328 || this_r_type
== R_SPARC_PLT64
)
1331 h
->plt
.refcount
+= 1;
1336 case R_SPARC_PC_HH22
:
1337 case R_SPARC_PC_HM10
:
1338 case R_SPARC_PC_LM22
:
1343 && strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
1348 case R_SPARC_DISP16
:
1349 case R_SPARC_DISP32
:
1350 case R_SPARC_DISP64
:
1351 case R_SPARC_WDISP30
:
1352 case R_SPARC_WDISP22
:
1353 case R_SPARC_WDISP19
:
1354 case R_SPARC_WDISP16
:
1384 if (h
!= NULL
&& !info
->shared
)
1386 /* We may need a .plt entry if the function this reloc
1387 refers to is in a shared lib. */
1388 h
->plt
.refcount
+= 1;
1391 /* If we are creating a shared library, and this is a reloc
1392 against a global symbol, or a non PC relative reloc
1393 against a local symbol, then we need to copy the reloc
1394 into the shared library. However, if we are linking with
1395 -Bsymbolic, we do not need to copy a reloc against a
1396 global symbol which is defined in an object we are
1397 including in the link (i.e., DEF_REGULAR is set). At
1398 this point we have not seen all the input files, so it is
1399 possible that DEF_REGULAR is not set now but will be set
1400 later (it is never cleared). In case of a weak definition,
1401 DEF_REGULAR may be cleared later by a strong definition in
1402 a shared library. We account for that possibility below by
1403 storing information in the relocs_copied field of the hash
1404 table entry. A similar situation occurs when creating
1405 shared libraries and symbol visibility changes render the
1408 If on the other hand, we are creating an executable, we
1409 may need to keep relocations for symbols satisfied by a
1410 dynamic library if we manage to avoid copy relocs for the
1413 && (sec
->flags
& SEC_ALLOC
) != 0
1414 && (! _bfd_sparc_elf_howto_table
[r_type
].pc_relative
1416 && (! info
->symbolic
1417 || h
->root
.type
== bfd_link_hash_defweak
1418 || !h
->def_regular
))))
1420 && (sec
->flags
& SEC_ALLOC
) != 0
1422 && (h
->root
.type
== bfd_link_hash_defweak
1423 || !h
->def_regular
)))
1425 struct _bfd_sparc_elf_dyn_relocs
*p
;
1426 struct _bfd_sparc_elf_dyn_relocs
**head
;
1428 /* When creating a shared object, we must copy these
1429 relocs into the output file. We create a reloc
1430 section in dynobj and make room for the reloc. */
1436 name
= (bfd_elf_string_from_elf_section
1438 elf_elfheader (abfd
)->e_shstrndx
,
1439 elf_section_data (sec
)->rel_hdr
.sh_name
));
1443 BFD_ASSERT (CONST_STRNEQ (name
, ".rela")
1444 && strcmp (bfd_get_section_name (abfd
, sec
),
1447 if (htab
->elf
.dynobj
== NULL
)
1448 htab
->elf
.dynobj
= abfd
;
1449 dynobj
= htab
->elf
.dynobj
;
1451 sreloc
= bfd_get_section_by_name (dynobj
, name
);
1456 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
1457 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
1458 if ((sec
->flags
& SEC_ALLOC
) != 0)
1459 flags
|= SEC_ALLOC
| SEC_LOAD
;
1460 sreloc
= bfd_make_section_with_flags (dynobj
,
1464 || ! bfd_set_section_alignment (dynobj
, sreloc
,
1465 htab
->word_align_power
))
1468 elf_section_data (sec
)->sreloc
= sreloc
;
1471 /* If this is a global symbol, we count the number of
1472 relocations we need for this symbol. */
1474 head
= &((struct _bfd_sparc_elf_link_hash_entry
*) h
)->dyn_relocs
;
1477 /* Track dynamic relocs needed for local syms too.
1478 We really need local syms available to do this
1484 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
,
1489 vpp
= &elf_section_data (s
)->local_dynrel
;
1490 head
= (struct _bfd_sparc_elf_dyn_relocs
**) vpp
;
1494 if (p
== NULL
|| p
->sec
!= sec
)
1496 bfd_size_type amt
= sizeof *p
;
1497 p
= ((struct _bfd_sparc_elf_dyn_relocs
*)
1498 bfd_alloc (htab
->elf
.dynobj
, amt
));
1509 if (_bfd_sparc_elf_howto_table
[r_type
].pc_relative
)
1515 case R_SPARC_GNU_VTINHERIT
:
1516 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
1520 case R_SPARC_GNU_VTENTRY
:
1521 BFD_ASSERT (h
!= NULL
);
1523 && !bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
1527 case R_SPARC_REGISTER
:
1528 /* Nothing to do. */
1540 _bfd_sparc_elf_gc_mark_hook (asection
*sec
,
1541 struct bfd_link_info
*info
,
1542 Elf_Internal_Rela
*rel
,
1543 struct elf_link_hash_entry
*h
,
1544 Elf_Internal_Sym
*sym
)
1547 switch (SPARC_ELF_R_TYPE (rel
->r_info
))
1549 case R_SPARC_GNU_VTINHERIT
:
1550 case R_SPARC_GNU_VTENTRY
:
1554 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
1557 /* Update the got entry reference counts for the section being removed. */
1559 _bfd_sparc_elf_gc_sweep_hook (bfd
*abfd
, struct bfd_link_info
*info
,
1560 asection
*sec
, const Elf_Internal_Rela
*relocs
)
1562 struct _bfd_sparc_elf_link_hash_table
*htab
;
1563 Elf_Internal_Shdr
*symtab_hdr
;
1564 struct elf_link_hash_entry
**sym_hashes
;
1565 bfd_signed_vma
*local_got_refcounts
;
1566 const Elf_Internal_Rela
*rel
, *relend
;
1568 if (info
->relocatable
)
1571 BFD_ASSERT (is_sparc_elf (abfd
) || sec
->reloc_count
== 0);
1573 elf_section_data (sec
)->local_dynrel
= NULL
;
1575 htab
= _bfd_sparc_elf_hash_table (info
);
1576 symtab_hdr
= &elf_symtab_hdr (abfd
);
1577 sym_hashes
= elf_sym_hashes (abfd
);
1578 local_got_refcounts
= elf_local_got_refcounts (abfd
);
1580 relend
= relocs
+ sec
->reloc_count
;
1581 for (rel
= relocs
; rel
< relend
; rel
++)
1583 unsigned long r_symndx
;
1584 unsigned int r_type
;
1585 struct elf_link_hash_entry
*h
= NULL
;
1587 r_symndx
= SPARC_ELF_R_SYMNDX (htab
, rel
->r_info
);
1588 if (r_symndx
>= symtab_hdr
->sh_info
)
1590 struct _bfd_sparc_elf_link_hash_entry
*eh
;
1591 struct _bfd_sparc_elf_dyn_relocs
**pp
;
1592 struct _bfd_sparc_elf_dyn_relocs
*p
;
1594 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
1595 while (h
->root
.type
== bfd_link_hash_indirect
1596 || h
->root
.type
== bfd_link_hash_warning
)
1597 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1598 eh
= (struct _bfd_sparc_elf_link_hash_entry
*) h
;
1599 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
1602 /* Everything must go for SEC. */
1608 r_type
= SPARC_ELF_R_TYPE (rel
->r_info
);
1609 r_type
= sparc_elf_tls_transition (info
, abfd
, r_type
, h
!= NULL
);
1612 case R_SPARC_TLS_LDM_HI22
:
1613 case R_SPARC_TLS_LDM_LO10
:
1614 if (_bfd_sparc_elf_hash_table (info
)->tls_ldm_got
.refcount
> 0)
1615 _bfd_sparc_elf_hash_table (info
)->tls_ldm_got
.refcount
-= 1;
1618 case R_SPARC_TLS_GD_HI22
:
1619 case R_SPARC_TLS_GD_LO10
:
1620 case R_SPARC_TLS_IE_HI22
:
1621 case R_SPARC_TLS_IE_LO10
:
1627 if (h
->got
.refcount
> 0)
1632 if (local_got_refcounts
[r_symndx
] > 0)
1633 local_got_refcounts
[r_symndx
]--;
1639 case R_SPARC_PC_HH22
:
1640 case R_SPARC_PC_HM10
:
1641 case R_SPARC_PC_LM22
:
1643 && strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
1648 case R_SPARC_DISP16
:
1649 case R_SPARC_DISP32
:
1650 case R_SPARC_DISP64
:
1651 case R_SPARC_WDISP30
:
1652 case R_SPARC_WDISP22
:
1653 case R_SPARC_WDISP19
:
1654 case R_SPARC_WDISP16
:
1685 case R_SPARC_WPLT30
:
1688 if (h
->plt
.refcount
> 0)
1701 /* Adjust a symbol defined by a dynamic object and referenced by a
1702 regular object. The current definition is in some section of the
1703 dynamic object, but we're not including those sections. We have to
1704 change the definition to something the rest of the link can
1708 _bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
1709 struct elf_link_hash_entry
*h
)
1711 struct _bfd_sparc_elf_link_hash_table
*htab
;
1712 struct _bfd_sparc_elf_link_hash_entry
* eh
;
1713 struct _bfd_sparc_elf_dyn_relocs
*p
;
1716 htab
= _bfd_sparc_elf_hash_table (info
);
1718 /* Make sure we know what is going on here. */
1719 BFD_ASSERT (htab
->elf
.dynobj
!= NULL
1721 || h
->u
.weakdef
!= NULL
1724 && !h
->def_regular
)));
1726 /* If this is a function, put it in the procedure linkage table. We
1727 will fill in the contents of the procedure linkage table later
1728 (although we could actually do it here). The STT_NOTYPE
1729 condition is a hack specifically for the Oracle libraries
1730 delivered for Solaris; for some inexplicable reason, they define
1731 some of their functions as STT_NOTYPE when they really should be
1733 if (h
->type
== STT_FUNC
1735 || (h
->type
== STT_NOTYPE
1736 && (h
->root
.type
== bfd_link_hash_defined
1737 || h
->root
.type
== bfd_link_hash_defweak
)
1738 && (h
->root
.u
.def
.section
->flags
& SEC_CODE
) != 0))
1740 if (h
->plt
.refcount
<= 0
1744 && h
->root
.type
!= bfd_link_hash_undefweak
1745 && h
->root
.type
!= bfd_link_hash_undefined
))
1747 /* This case can occur if we saw a WPLT30 reloc in an input
1748 file, but the symbol was never referred to by a dynamic
1749 object, or if all references were garbage collected. In
1750 such a case, we don't actually need to build a procedure
1751 linkage table, and we can just do a WDISP30 reloc instead. */
1752 h
->plt
.offset
= (bfd_vma
) -1;
1759 h
->plt
.offset
= (bfd_vma
) -1;
1761 /* If this is a weak symbol, and there is a real definition, the
1762 processor independent code will have arranged for us to see the
1763 real definition first, and we can just use the same value. */
1764 if (h
->u
.weakdef
!= NULL
)
1766 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
1767 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
1768 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
1769 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
1773 /* This is a reference to a symbol defined by a dynamic object which
1774 is not a function. */
1776 /* If we are creating a shared library, we must presume that the
1777 only references to the symbol are via the global offset table.
1778 For such cases we need not do anything here; the relocations will
1779 be handled correctly by relocate_section. */
1783 /* If there are no references to this symbol that do not use the
1784 GOT, we don't need to generate a copy reloc. */
1785 if (!h
->non_got_ref
)
1788 eh
= (struct _bfd_sparc_elf_link_hash_entry
*) h
;
1789 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
1791 s
= p
->sec
->output_section
;
1792 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
1796 /* If we didn't find any dynamic relocs in read-only sections, then
1797 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1806 (*_bfd_error_handler
) (_("dynamic variable `%s' is zero size"),
1807 h
->root
.root
.string
);
1811 /* We must allocate the symbol in our .dynbss section, which will
1812 become part of the .bss section of the executable. There will be
1813 an entry for this symbol in the .dynsym section. The dynamic
1814 object will contain position independent code, so all references
1815 from the dynamic object to this symbol will go through the global
1816 offset table. The dynamic linker will use the .dynsym entry to
1817 determine the address it must put in the global offset table, so
1818 both the dynamic object and the regular object will refer to the
1819 same memory location for the variable. */
1821 /* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
1822 to copy the initial value out of the dynamic object and into the
1823 runtime process image. We need to remember the offset into the
1824 .rel.bss section we are going to use. */
1825 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
1827 htab
->srelbss
->size
+= SPARC_ELF_RELA_BYTES (htab
);
1833 return _bfd_elf_adjust_dynamic_copy (h
, s
);
1836 /* Allocate space in .plt, .got and associated reloc sections for
1840 allocate_dynrelocs (struct elf_link_hash_entry
*h
, PTR inf
)
1842 struct bfd_link_info
*info
;
1843 struct _bfd_sparc_elf_link_hash_table
*htab
;
1844 struct _bfd_sparc_elf_link_hash_entry
*eh
;
1845 struct _bfd_sparc_elf_dyn_relocs
*p
;
1847 if (h
->root
.type
== bfd_link_hash_indirect
)
1850 if (h
->root
.type
== bfd_link_hash_warning
)
1851 /* When warning symbols are created, they **replace** the "real"
1852 entry in the hash table, thus we never get to see the real
1853 symbol in a hash traversal. So look at it now. */
1854 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1856 info
= (struct bfd_link_info
*) inf
;
1857 htab
= _bfd_sparc_elf_hash_table (info
);
1859 if (htab
->elf
.dynamic_sections_created
1860 && h
->plt
.refcount
> 0)
1862 /* Make sure this symbol is output as a dynamic symbol.
1863 Undefined weak syms won't yet be marked as dynamic. */
1864 if (h
->dynindx
== -1
1865 && !h
->forced_local
)
1867 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1871 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info
->shared
, h
))
1873 asection
*s
= htab
->splt
;
1875 /* Allocate room for the header. */
1878 s
->size
= htab
->plt_header_size
;
1880 /* Allocate space for the .rela.plt.unloaded relocations. */
1881 if (htab
->is_vxworks
&& !info
->shared
)
1882 htab
->srelplt2
->size
= sizeof (Elf32_External_Rela
) * 2;
1885 /* The procedure linkage table size is bounded by the magnitude
1886 of the offset we can describe in the entry. */
1887 if (s
->size
>= (SPARC_ELF_WORD_BYTES(htab
) == 8 ?
1888 (((bfd_vma
)1 << 31) << 1) : 0x400000))
1890 bfd_set_error (bfd_error_bad_value
);
1894 if (SPARC_ELF_WORD_BYTES(htab
) == 8
1895 && s
->size
>= PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
)
1897 bfd_vma off
= s
->size
- PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
;
1900 off
= (off
% (160 * PLT64_ENTRY_SIZE
)) / PLT64_ENTRY_SIZE
;
1902 h
->plt
.offset
= (s
->size
- (off
* 8));
1905 h
->plt
.offset
= s
->size
;
1907 /* If this symbol is not defined in a regular file, and we are
1908 not generating a shared library, then set the symbol to this
1909 location in the .plt. This is required to make function
1910 pointers compare as equal between the normal executable and
1911 the shared library. */
1915 h
->root
.u
.def
.section
= s
;
1916 h
->root
.u
.def
.value
= h
->plt
.offset
;
1919 /* Make room for this entry. */
1920 s
->size
+= htab
->plt_entry_size
;
1922 /* We also need to make an entry in the .rela.plt section. */
1923 htab
->srelplt
->size
+= SPARC_ELF_RELA_BYTES (htab
);
1925 if (htab
->is_vxworks
)
1927 /* Allocate space for the .got.plt entry. */
1928 htab
->sgotplt
->size
+= 4;
1930 /* ...and for the .rela.plt.unloaded relocations. */
1932 htab
->srelplt2
->size
+= sizeof (Elf32_External_Rela
) * 3;
1937 h
->plt
.offset
= (bfd_vma
) -1;
1943 h
->plt
.offset
= (bfd_vma
) -1;
1947 /* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
1948 make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
1949 if (h
->got
.refcount
> 0
1952 && _bfd_sparc_elf_hash_entry(h
)->tls_type
== GOT_TLS_IE
)
1953 h
->got
.offset
= (bfd_vma
) -1;
1954 else if (h
->got
.refcount
> 0)
1958 int tls_type
= _bfd_sparc_elf_hash_entry(h
)->tls_type
;
1960 /* Make sure this symbol is output as a dynamic symbol.
1961 Undefined weak syms won't yet be marked as dynamic. */
1962 if (h
->dynindx
== -1
1963 && !h
->forced_local
)
1965 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1970 h
->got
.offset
= s
->size
;
1971 s
->size
+= SPARC_ELF_WORD_BYTES (htab
);
1972 /* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
1973 if (tls_type
== GOT_TLS_GD
)
1974 s
->size
+= SPARC_ELF_WORD_BYTES (htab
);
1975 dyn
= htab
->elf
.dynamic_sections_created
;
1976 /* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
1977 R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
1979 if ((tls_type
== GOT_TLS_GD
&& h
->dynindx
== -1)
1980 || tls_type
== GOT_TLS_IE
)
1981 htab
->srelgot
->size
+= SPARC_ELF_RELA_BYTES (htab
);
1982 else if (tls_type
== GOT_TLS_GD
)
1983 htab
->srelgot
->size
+= 2 * SPARC_ELF_RELA_BYTES (htab
);
1984 else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
))
1985 htab
->srelgot
->size
+= SPARC_ELF_RELA_BYTES (htab
);
1988 h
->got
.offset
= (bfd_vma
) -1;
1990 eh
= (struct _bfd_sparc_elf_link_hash_entry
*) h
;
1991 if (eh
->dyn_relocs
== NULL
)
1994 /* In the shared -Bsymbolic case, discard space allocated for
1995 dynamic pc-relative relocs against symbols which turn out to be
1996 defined in regular objects. For the normal shared case, discard
1997 space for pc-relative relocs that have become local due to symbol
1998 visibility changes. */
2006 struct _bfd_sparc_elf_dyn_relocs
**pp
;
2008 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
2010 p
->count
-= p
->pc_count
;
2019 /* Also discard relocs on undefined weak syms with non-default
2021 if (eh
->dyn_relocs
!= NULL
2022 && h
->root
.type
== bfd_link_hash_undefweak
)
2024 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
2025 eh
->dyn_relocs
= NULL
;
2027 /* Make sure undefined weak symbols are output as a dynamic
2029 else if (h
->dynindx
== -1
2030 && !h
->forced_local
)
2032 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2039 /* For the non-shared case, discard space for relocs against
2040 symbols which turn out to need copy relocs or are not
2046 || (htab
->elf
.dynamic_sections_created
2047 && (h
->root
.type
== bfd_link_hash_undefweak
2048 || h
->root
.type
== bfd_link_hash_undefined
))))
2050 /* Make sure this symbol is output as a dynamic symbol.
2051 Undefined weak syms won't yet be marked as dynamic. */
2052 if (h
->dynindx
== -1
2053 && !h
->forced_local
)
2055 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2059 /* If that succeeded, we know we'll be keeping all the
2061 if (h
->dynindx
!= -1)
2065 eh
->dyn_relocs
= NULL
;
2070 /* Finally, allocate space. */
2071 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2073 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
2074 sreloc
->size
+= p
->count
* SPARC_ELF_RELA_BYTES (htab
);
2080 /* Find any dynamic relocs that apply to read-only sections. */
2083 readonly_dynrelocs (struct elf_link_hash_entry
*h
, PTR inf
)
2085 struct _bfd_sparc_elf_link_hash_entry
*eh
;
2086 struct _bfd_sparc_elf_dyn_relocs
*p
;
2088 if (h
->root
.type
== bfd_link_hash_warning
)
2089 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2091 eh
= (struct _bfd_sparc_elf_link_hash_entry
*) h
;
2092 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2094 asection
*s
= p
->sec
->output_section
;
2096 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
2098 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
2100 info
->flags
|= DF_TEXTREL
;
2102 /* Not an error, just cut short the traversal. */
2109 /* Return true if the dynamic symbol for a given section should be
2110 omitted when creating a shared library. */
2113 _bfd_sparc_elf_omit_section_dynsym (bfd
*output_bfd
,
2114 struct bfd_link_info
*info
,
2117 /* We keep the .got section symbol so that explicit relocations
2118 against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
2119 can be turned into relocations against the .got symbol. */
2120 if (strcmp (p
->name
, ".got") == 0)
2123 return _bfd_elf_link_omit_section_dynsym (output_bfd
, info
, p
);
2126 /* Set the sizes of the dynamic sections. */
2129 _bfd_sparc_elf_size_dynamic_sections (bfd
*output_bfd
,
2130 struct bfd_link_info
*info
)
2132 struct _bfd_sparc_elf_link_hash_table
*htab
;
2137 htab
= _bfd_sparc_elf_hash_table (info
);
2138 dynobj
= htab
->elf
.dynobj
;
2139 BFD_ASSERT (dynobj
!= NULL
);
2141 if (elf_hash_table (info
)->dynamic_sections_created
)
2143 /* Set the contents of the .interp section to the interpreter. */
2144 if (info
->executable
)
2146 s
= bfd_get_section_by_name (dynobj
, ".interp");
2147 BFD_ASSERT (s
!= NULL
);
2148 s
->size
= htab
->dynamic_interpreter_size
;
2149 s
->contents
= (unsigned char *) htab
->dynamic_interpreter
;
2153 /* Set up .got offsets for local syms, and space for local dynamic
2155 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
2157 bfd_signed_vma
*local_got
;
2158 bfd_signed_vma
*end_local_got
;
2159 char *local_tls_type
;
2160 bfd_size_type locsymcount
;
2161 Elf_Internal_Shdr
*symtab_hdr
;
2164 if (! is_sparc_elf (ibfd
))
2167 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
2169 struct _bfd_sparc_elf_dyn_relocs
*p
;
2171 for (p
= elf_section_data (s
)->local_dynrel
; p
!= NULL
; p
= p
->next
)
2173 if (!bfd_is_abs_section (p
->sec
)
2174 && bfd_is_abs_section (p
->sec
->output_section
))
2176 /* Input section has been discarded, either because
2177 it is a copy of a linkonce section or due to
2178 linker script /DISCARD/, so we'll be discarding
2181 else if (p
->count
!= 0)
2183 srel
= elf_section_data (p
->sec
)->sreloc
;
2184 srel
->size
+= p
->count
* SPARC_ELF_RELA_BYTES (htab
);
2185 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2186 info
->flags
|= DF_TEXTREL
;
2191 local_got
= elf_local_got_refcounts (ibfd
);
2195 symtab_hdr
= &elf_symtab_hdr (ibfd
);
2196 locsymcount
= symtab_hdr
->sh_info
;
2197 end_local_got
= local_got
+ locsymcount
;
2198 local_tls_type
= _bfd_sparc_elf_local_got_tls_type (ibfd
);
2200 srel
= htab
->srelgot
;
2201 for (; local_got
< end_local_got
; ++local_got
, ++local_tls_type
)
2205 *local_got
= s
->size
;
2206 s
->size
+= SPARC_ELF_WORD_BYTES (htab
);
2207 if (*local_tls_type
== GOT_TLS_GD
)
2208 s
->size
+= SPARC_ELF_WORD_BYTES (htab
);
2210 || *local_tls_type
== GOT_TLS_GD
2211 || *local_tls_type
== GOT_TLS_IE
)
2212 srel
->size
+= SPARC_ELF_RELA_BYTES (htab
);
2215 *local_got
= (bfd_vma
) -1;
2219 if (htab
->tls_ldm_got
.refcount
> 0)
2221 /* Allocate 2 got entries and 1 dynamic reloc for
2222 R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
2223 htab
->tls_ldm_got
.offset
= htab
->sgot
->size
;
2224 htab
->sgot
->size
+= (2 * SPARC_ELF_WORD_BYTES (htab
));
2225 htab
->srelgot
->size
+= SPARC_ELF_RELA_BYTES (htab
);
2228 htab
->tls_ldm_got
.offset
= -1;
2230 /* Allocate global sym .plt and .got entries, and space for global
2231 sym dynamic relocs. */
2232 elf_link_hash_traverse (&htab
->elf
, allocate_dynrelocs
, (PTR
) info
);
2234 if (! ABI_64_P (output_bfd
)
2235 && !htab
->is_vxworks
2236 && elf_hash_table (info
)->dynamic_sections_created
)
2238 /* Make space for the trailing nop in .plt. */
2239 if (htab
->splt
->size
> 0)
2240 htab
->splt
->size
+= 1 * SPARC_INSN_BYTES
;
2242 /* If the .got section is more than 0x1000 bytes, we add
2243 0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
2244 bit relocations have a greater chance of working.
2246 FIXME: Make this optimization work for 64-bit too. */
2247 if (htab
->sgot
->size
>= 0x1000
2248 && elf_hash_table (info
)->hgot
->root
.u
.def
.value
== 0)
2249 elf_hash_table (info
)->hgot
->root
.u
.def
.value
= 0x1000;
2252 /* The check_relocs and adjust_dynamic_symbol entry points have
2253 determined the sizes of the various dynamic sections. Allocate
2255 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
2257 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
2262 || s
== htab
->sdynbss
2263 || s
== htab
->sgotplt
)
2265 /* Strip this section if we don't need it; see the
2268 else if (CONST_STRNEQ (s
->name
, ".rela"))
2272 /* We use the reloc_count field as a counter if we need
2273 to copy relocs into the output file. */
2279 /* It's not one of our sections. */
2285 /* If we don't need this section, strip it from the
2286 output file. This is mostly to handle .rela.bss and
2287 .rela.plt. We must create both sections in
2288 create_dynamic_sections, because they must be created
2289 before the linker maps input sections to output
2290 sections. The linker does that before
2291 adjust_dynamic_symbol is called, and it is that
2292 function which decides whether anything needs to go
2293 into these sections. */
2294 s
->flags
|= SEC_EXCLUDE
;
2298 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
2301 /* Allocate memory for the section contents. Zero the memory
2302 for the benefit of .rela.plt, which has 4 unused entries
2303 at the beginning, and we don't want garbage. */
2304 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
2305 if (s
->contents
== NULL
)
2309 if (elf_hash_table (info
)->dynamic_sections_created
)
2311 /* Add some entries to the .dynamic section. We fill in the
2312 values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
2313 must add the entries now so that we get the correct size for
2314 the .dynamic section. The DT_DEBUG entry is filled in by the
2315 dynamic linker and used by the debugger. */
2316 #define add_dynamic_entry(TAG, VAL) \
2317 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2319 if (info
->executable
)
2321 if (!add_dynamic_entry (DT_DEBUG
, 0))
2325 if (htab
->srelplt
->size
!= 0)
2327 if (!add_dynamic_entry (DT_PLTGOT
, 0)
2328 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
2329 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
2330 || !add_dynamic_entry (DT_JMPREL
, 0))
2334 if (!add_dynamic_entry (DT_RELA
, 0)
2335 || !add_dynamic_entry (DT_RELASZ
, 0)
2336 || !add_dynamic_entry (DT_RELAENT
,
2337 SPARC_ELF_RELA_BYTES (htab
)))
2340 /* If any dynamic relocs apply to a read-only section,
2341 then we need a DT_TEXTREL entry. */
2342 if ((info
->flags
& DF_TEXTREL
) == 0)
2343 elf_link_hash_traverse (&htab
->elf
, readonly_dynrelocs
,
2346 if (info
->flags
& DF_TEXTREL
)
2348 if (!add_dynamic_entry (DT_TEXTREL
, 0))
2352 if (ABI_64_P (output_bfd
))
2355 struct _bfd_sparc_elf_app_reg
* app_regs
;
2356 struct elf_strtab_hash
*dynstr
;
2357 struct elf_link_hash_table
*eht
= elf_hash_table (info
);
2359 /* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
2360 entries if needed. */
2361 app_regs
= _bfd_sparc_elf_hash_table (info
)->app_regs
;
2362 dynstr
= eht
->dynstr
;
2364 for (reg
= 0; reg
< 4; reg
++)
2365 if (app_regs
[reg
].name
!= NULL
)
2367 struct elf_link_local_dynamic_entry
*entry
, *e
;
2369 if (!add_dynamic_entry (DT_SPARC_REGISTER
, 0))
2372 entry
= (struct elf_link_local_dynamic_entry
*)
2373 bfd_hash_allocate (&info
->hash
->table
, sizeof (*entry
));
2377 /* We cheat here a little bit: the symbol will not be local, so we
2378 put it at the end of the dynlocal linked list. We will fix it
2379 later on, as we have to fix other fields anyway. */
2380 entry
->isym
.st_value
= reg
< 2 ? reg
+ 2 : reg
+ 4;
2381 entry
->isym
.st_size
= 0;
2382 if (*app_regs
[reg
].name
!= '\0')
2384 = _bfd_elf_strtab_add (dynstr
, app_regs
[reg
].name
, FALSE
);
2386 entry
->isym
.st_name
= 0;
2387 entry
->isym
.st_other
= 0;
2388 entry
->isym
.st_info
= ELF_ST_INFO (app_regs
[reg
].bind
,
2390 entry
->isym
.st_shndx
= app_regs
[reg
].shndx
;
2392 entry
->input_bfd
= output_bfd
;
2393 entry
->input_indx
= -1;
2395 if (eht
->dynlocal
== NULL
)
2396 eht
->dynlocal
= entry
;
2399 for (e
= eht
->dynlocal
; e
->next
; e
= e
->next
)
2406 if (htab
->is_vxworks
2407 && !elf_vxworks_add_dynamic_entries (output_bfd
, info
))
2410 #undef add_dynamic_entry
2416 _bfd_sparc_elf_new_section_hook (bfd
*abfd
, asection
*sec
)
2418 if (!sec
->used_by_bfd
)
2420 struct _bfd_sparc_elf_section_data
*sdata
;
2421 bfd_size_type amt
= sizeof (*sdata
);
2423 sdata
= bfd_zalloc (abfd
, amt
);
2426 sec
->used_by_bfd
= sdata
;
2429 return _bfd_elf_new_section_hook (abfd
, sec
);
2433 _bfd_sparc_elf_relax_section (bfd
*abfd ATTRIBUTE_UNUSED
,
2434 struct bfd_section
*section
,
2435 struct bfd_link_info
*link_info ATTRIBUTE_UNUSED
,
2439 sec_do_relax (section
) = 1;
2443 /* Return the base VMA address which should be subtracted from real addresses
2444 when resolving @dtpoff relocation.
2445 This is PT_TLS segment p_vaddr. */
2448 dtpoff_base (struct bfd_link_info
*info
)
2450 /* If tls_sec is NULL, we should have signalled an error already. */
2451 if (elf_hash_table (info
)->tls_sec
== NULL
)
2453 return elf_hash_table (info
)->tls_sec
->vma
;
2456 /* Return the relocation value for @tpoff relocation
2457 if STT_TLS virtual address is ADDRESS. */
2460 tpoff (struct bfd_link_info
*info
, bfd_vma address
)
2462 struct elf_link_hash_table
*htab
= elf_hash_table (info
);
2464 /* If tls_sec is NULL, we should have signalled an error already. */
2465 if (htab
->tls_sec
== NULL
)
2467 return address
- htab
->tls_size
- htab
->tls_sec
->vma
;
2470 /* Relocate a SPARC ELF section. */
2473 _bfd_sparc_elf_relocate_section (bfd
*output_bfd
,
2474 struct bfd_link_info
*info
,
2476 asection
*input_section
,
2478 Elf_Internal_Rela
*relocs
,
2479 Elf_Internal_Sym
*local_syms
,
2480 asection
**local_sections
)
2482 struct _bfd_sparc_elf_link_hash_table
*htab
;
2483 Elf_Internal_Shdr
*symtab_hdr
;
2484 struct elf_link_hash_entry
**sym_hashes
;
2485 bfd_vma
*local_got_offsets
;
2488 Elf_Internal_Rela
*rel
;
2489 Elf_Internal_Rela
*relend
;
2492 htab
= _bfd_sparc_elf_hash_table (info
);
2493 symtab_hdr
= &elf_symtab_hdr (input_bfd
);
2494 sym_hashes
= elf_sym_hashes (input_bfd
);
2495 local_got_offsets
= elf_local_got_offsets (input_bfd
);
2497 if (elf_hash_table (info
)->hgot
== NULL
)
2500 got_base
= elf_hash_table (info
)->hgot
->root
.u
.def
.value
;
2502 sreloc
= elf_section_data (input_section
)->sreloc
;
2505 if (ABI_64_P (output_bfd
))
2506 num_relocs
= NUM_SHDR_ENTRIES (& elf_section_data (input_section
)->rel_hdr
);
2508 num_relocs
= input_section
->reloc_count
;
2509 relend
= relocs
+ num_relocs
;
2510 for (; rel
< relend
; rel
++)
2512 int r_type
, tls_type
;
2513 reloc_howto_type
*howto
;
2514 unsigned long r_symndx
;
2515 struct elf_link_hash_entry
*h
;
2516 Elf_Internal_Sym
*sym
;
2518 bfd_vma relocation
, off
;
2519 bfd_reloc_status_type r
;
2520 bfd_boolean is_plt
= FALSE
;
2521 bfd_boolean unresolved_reloc
;
2523 r_type
= SPARC_ELF_R_TYPE (rel
->r_info
);
2524 if (r_type
== R_SPARC_GNU_VTINHERIT
2525 || r_type
== R_SPARC_GNU_VTENTRY
)
2528 if (r_type
< 0 || r_type
>= (int) R_SPARC_max_std
)
2530 bfd_set_error (bfd_error_bad_value
);
2533 howto
= _bfd_sparc_elf_howto_table
+ r_type
;
2535 r_symndx
= SPARC_ELF_R_SYMNDX (htab
, rel
->r_info
);
2539 unresolved_reloc
= FALSE
;
2540 if (r_symndx
< symtab_hdr
->sh_info
)
2542 sym
= local_syms
+ r_symndx
;
2543 sec
= local_sections
[r_symndx
];
2544 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
2550 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
2551 r_symndx
, symtab_hdr
, sym_hashes
,
2553 unresolved_reloc
, warned
);
2556 /* To avoid generating warning messages about truncated
2557 relocations, set the relocation's address to be the same as
2558 the start of this section. */
2559 if (input_section
->output_section
!= NULL
)
2560 relocation
= input_section
->output_section
->vma
;
2566 if (sec
!= NULL
&& elf_discarded_section (sec
))
2568 /* For relocs against symbols from removed linkonce
2569 sections, or sections discarded by a linker script, we
2570 just want the section contents zeroed. Avoid any
2571 special processing. */
2572 _bfd_clear_contents (howto
, input_bfd
, contents
+ rel
->r_offset
);
2578 if (info
->relocatable
)
2586 /* Relocation is to the entry for this symbol in the global
2588 if (htab
->sgot
== NULL
)
2595 off
= h
->got
.offset
;
2596 BFD_ASSERT (off
!= (bfd_vma
) -1);
2597 dyn
= elf_hash_table (info
)->dynamic_sections_created
;
2599 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
)
2606 /* This is actually a static link, or it is a
2607 -Bsymbolic link and the symbol is defined
2608 locally, or the symbol was forced to be local
2609 because of a version file. We must initialize
2610 this entry in the global offset table. Since the
2611 offset must always be a multiple of 8 for 64-bit
2612 and 4 for 32-bit, we use the least significant bit
2613 to record whether we have initialized it already.
2615 When doing a dynamic link, we create a .rela.got
2616 relocation entry to initialize the value. This
2617 is done in the finish_dynamic_symbol routine. */
2622 SPARC_ELF_PUT_WORD (htab
, output_bfd
, relocation
,
2623 htab
->sgot
->contents
+ off
);
2628 unresolved_reloc
= FALSE
;
2632 BFD_ASSERT (local_got_offsets
!= NULL
2633 && local_got_offsets
[r_symndx
] != (bfd_vma
) -1);
2635 off
= local_got_offsets
[r_symndx
];
2637 /* The offset must always be a multiple of 8 on 64-bit and
2638 4 on 32-bit. We use the least significant bit to record
2639 whether we have already processed this entry. */
2648 Elf_Internal_Rela outrel
;
2650 /* We need to generate a R_SPARC_RELATIVE reloc
2651 for the dynamic linker. */
2653 BFD_ASSERT (s
!= NULL
);
2655 outrel
.r_offset
= (htab
->sgot
->output_section
->vma
2656 + htab
->sgot
->output_offset
2658 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
,
2659 0, R_SPARC_RELATIVE
);
2660 outrel
.r_addend
= relocation
;
2662 sparc_elf_append_rela (output_bfd
, s
, &outrel
);
2665 SPARC_ELF_PUT_WORD (htab
, output_bfd
, relocation
,
2666 htab
->sgot
->contents
+ off
);
2667 local_got_offsets
[r_symndx
] |= 1;
2670 relocation
= htab
->sgot
->output_offset
+ off
- got_base
;
2675 if (h
== NULL
|| h
->plt
.offset
== (bfd_vma
) -1)
2677 r_type
= (r_type
== R_SPARC_PLT32
) ? R_SPARC_32
: R_SPARC_64
;
2682 case R_SPARC_WPLT30
:
2683 case R_SPARC_HIPLT22
:
2684 case R_SPARC_LOPLT10
:
2685 case R_SPARC_PCPLT32
:
2686 case R_SPARC_PCPLT22
:
2687 case R_SPARC_PCPLT10
:
2689 /* Relocation is to the entry for this symbol in the
2690 procedure linkage table. */
2692 if (! ABI_64_P (output_bfd
))
2694 /* The Solaris native assembler will generate a WPLT30 reloc
2695 for a local symbol if you assemble a call from one
2696 section to another when using -K pic. We treat it as
2703 BFD_ASSERT (h
!= NULL
);
2706 if (h
->plt
.offset
== (bfd_vma
) -1 || htab
->splt
== NULL
)
2708 /* We didn't make a PLT entry for this symbol. This
2709 happens when statically linking PIC code, or when
2710 using -Bsymbolic. */
2714 relocation
= (htab
->splt
->output_section
->vma
2715 + htab
->splt
->output_offset
2717 unresolved_reloc
= FALSE
;
2718 if (r_type
== R_SPARC_PLT32
|| r_type
== R_SPARC_PLT64
)
2720 r_type
= r_type
== R_SPARC_PLT32
? R_SPARC_32
: R_SPARC_64
;
2728 case R_SPARC_PC_HH22
:
2729 case R_SPARC_PC_HM10
:
2730 case R_SPARC_PC_LM22
:
2732 && strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
2736 case R_SPARC_DISP16
:
2737 case R_SPARC_DISP32
:
2738 case R_SPARC_DISP64
:
2739 case R_SPARC_WDISP30
:
2740 case R_SPARC_WDISP22
:
2741 case R_SPARC_WDISP19
:
2742 case R_SPARC_WDISP16
:
2769 if ((input_section
->flags
& SEC_ALLOC
) == 0)
2774 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2775 || h
->root
.type
!= bfd_link_hash_undefweak
)
2776 && (! howto
->pc_relative
2779 && (! info
->symbolic
2780 || !h
->def_regular
))))
2787 || h
->root
.type
== bfd_link_hash_undefweak
2788 || h
->root
.type
== bfd_link_hash_undefined
)))
2790 Elf_Internal_Rela outrel
;
2791 bfd_boolean skip
, relocate
= FALSE
;
2793 /* When generating a shared object, these relocations
2794 are copied into the output file to be resolved at run
2797 BFD_ASSERT (sreloc
!= NULL
);
2802 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
2804 if (outrel
.r_offset
== (bfd_vma
) -1)
2806 else if (outrel
.r_offset
== (bfd_vma
) -2)
2807 skip
= TRUE
, relocate
= TRUE
;
2808 outrel
.r_offset
+= (input_section
->output_section
->vma
2809 + input_section
->output_offset
);
2811 /* Optimize unaligned reloc usage now that we know where
2812 it finally resides. */
2816 if (outrel
.r_offset
& 1)
2817 r_type
= R_SPARC_UA16
;
2820 if (!(outrel
.r_offset
& 1))
2821 r_type
= R_SPARC_16
;
2824 if (outrel
.r_offset
& 3)
2825 r_type
= R_SPARC_UA32
;
2828 if (!(outrel
.r_offset
& 3))
2829 r_type
= R_SPARC_32
;
2832 if (outrel
.r_offset
& 7)
2833 r_type
= R_SPARC_UA64
;
2836 if (!(outrel
.r_offset
& 7))
2837 r_type
= R_SPARC_64
;
2840 case R_SPARC_DISP16
:
2841 case R_SPARC_DISP32
:
2842 case R_SPARC_DISP64
:
2843 /* If the symbol is not dynamic, we should not keep
2844 a dynamic relocation. But an .rela.* slot has been
2845 allocated for it, output R_SPARC_NONE.
2846 FIXME: Add code tracking needed dynamic relocs as
2848 if (h
->dynindx
== -1)
2849 skip
= TRUE
, relocate
= TRUE
;
2854 memset (&outrel
, 0, sizeof outrel
);
2855 /* h->dynindx may be -1 if the symbol was marked to
2857 else if (h
!= NULL
&& ! is_plt
2858 && ((! info
->symbolic
&& h
->dynindx
!= -1)
2859 || !h
->def_regular
))
2861 BFD_ASSERT (h
->dynindx
!= -1);
2862 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, rel
, h
->dynindx
, r_type
);
2863 outrel
.r_addend
= rel
->r_addend
;
2867 if (r_type
== R_SPARC_32
|| r_type
== R_SPARC_64
)
2869 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
,
2870 0, R_SPARC_RELATIVE
);
2871 outrel
.r_addend
= relocation
+ rel
->r_addend
;
2877 outrel
.r_addend
= relocation
+ rel
->r_addend
;
2882 if (bfd_is_abs_section (sec
))
2884 else if (sec
== NULL
|| sec
->owner
== NULL
)
2886 bfd_set_error (bfd_error_bad_value
);
2893 /* We are turning this relocation into one
2894 against a section symbol. It would be
2895 proper to subtract the symbol's value,
2896 osec->vma, from the emitted reloc addend,
2897 but ld.so expects buggy relocs. */
2898 osec
= sec
->output_section
;
2899 indx
= elf_section_data (osec
)->dynindx
;
2903 osec
= htab
->elf
.text_index_section
;
2904 indx
= elf_section_data (osec
)->dynindx
;
2907 /* FIXME: we really should be able to link non-pic
2908 shared libraries. */
2912 (*_bfd_error_handler
)
2913 (_("%B: probably compiled without -fPIC?"),
2915 bfd_set_error (bfd_error_bad_value
);
2920 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, rel
, indx
,
2925 sparc_elf_append_rela (output_bfd
, sreloc
, &outrel
);
2927 /* This reloc will be computed at runtime, so there's no
2928 need to do anything now. */
2934 case R_SPARC_TLS_GD_HI22
:
2935 if (! ABI_64_P (input_bfd
)
2936 && ! _bfd_sparc_elf_tdata (input_bfd
)->has_tlsgd
)
2938 /* R_SPARC_REV32 used the same reloc number as
2939 R_SPARC_TLS_GD_HI22. */
2940 r_type
= R_SPARC_REV32
;
2945 case R_SPARC_TLS_GD_LO10
:
2946 case R_SPARC_TLS_IE_HI22
:
2947 case R_SPARC_TLS_IE_LO10
:
2948 r_type
= sparc_elf_tls_transition (info
, input_bfd
, r_type
, h
== NULL
);
2949 tls_type
= GOT_UNKNOWN
;
2950 if (h
== NULL
&& local_got_offsets
)
2951 tls_type
= _bfd_sparc_elf_local_got_tls_type (input_bfd
) [r_symndx
];
2954 tls_type
= _bfd_sparc_elf_hash_entry(h
)->tls_type
;
2955 if (!info
->shared
&& h
->dynindx
== -1 && tls_type
== GOT_TLS_IE
)
2956 switch (SPARC_ELF_R_TYPE (rel
->r_info
))
2958 case R_SPARC_TLS_GD_HI22
:
2959 case R_SPARC_TLS_IE_HI22
:
2960 r_type
= R_SPARC_TLS_LE_HIX22
;
2963 r_type
= R_SPARC_TLS_LE_LOX10
;
2967 if (tls_type
== GOT_TLS_IE
)
2970 case R_SPARC_TLS_GD_HI22
:
2971 r_type
= R_SPARC_TLS_IE_HI22
;
2973 case R_SPARC_TLS_GD_LO10
:
2974 r_type
= R_SPARC_TLS_IE_LO10
;
2978 if (r_type
== R_SPARC_TLS_LE_HIX22
)
2980 relocation
= tpoff (info
, relocation
);
2983 if (r_type
== R_SPARC_TLS_LE_LOX10
)
2985 /* Change add into xor. */
2986 relocation
= tpoff (info
, relocation
);
2987 bfd_put_32 (output_bfd
, (bfd_get_32 (input_bfd
,
2988 contents
+ rel
->r_offset
)
2989 | 0x80182000), contents
+ rel
->r_offset
);
2995 off
= h
->got
.offset
;
3000 BFD_ASSERT (local_got_offsets
!= NULL
);
3001 off
= local_got_offsets
[r_symndx
];
3002 local_got_offsets
[r_symndx
] |= 1;
3006 if (htab
->sgot
== NULL
)
3013 Elf_Internal_Rela outrel
;
3016 if (htab
->srelgot
== NULL
)
3019 SPARC_ELF_PUT_WORD (htab
, output_bfd
, 0, htab
->sgot
->contents
+ off
);
3020 outrel
.r_offset
= (htab
->sgot
->output_section
->vma
3021 + htab
->sgot
->output_offset
+ off
);
3022 indx
= h
&& h
->dynindx
!= -1 ? h
->dynindx
: 0;
3023 if (r_type
== R_SPARC_TLS_IE_HI22
3024 || r_type
== R_SPARC_TLS_IE_LO10
)
3025 dr_type
= SPARC_ELF_TPOFF_RELOC (htab
);
3027 dr_type
= SPARC_ELF_DTPMOD_RELOC (htab
);
3028 if (dr_type
== SPARC_ELF_TPOFF_RELOC (htab
) && indx
== 0)
3029 outrel
.r_addend
= relocation
- dtpoff_base (info
);
3031 outrel
.r_addend
= 0;
3032 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, indx
, dr_type
);
3033 sparc_elf_append_rela (output_bfd
, htab
->srelgot
, &outrel
);
3035 if (r_type
== R_SPARC_TLS_GD_HI22
3036 || r_type
== R_SPARC_TLS_GD_LO10
)
3040 BFD_ASSERT (! unresolved_reloc
);
3041 SPARC_ELF_PUT_WORD (htab
, output_bfd
,
3042 relocation
- dtpoff_base (info
),
3043 (htab
->sgot
->contents
+ off
3044 + SPARC_ELF_WORD_BYTES (htab
)));
3048 SPARC_ELF_PUT_WORD (htab
, output_bfd
, 0,
3049 (htab
->sgot
->contents
+ off
3050 + SPARC_ELF_WORD_BYTES (htab
)));
3051 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, indx
,
3052 SPARC_ELF_DTPOFF_RELOC (htab
));
3053 outrel
.r_offset
+= SPARC_ELF_WORD_BYTES (htab
);
3054 sparc_elf_append_rela (output_bfd
, htab
->srelgot
,
3058 else if (dr_type
== SPARC_ELF_DTPMOD_RELOC (htab
))
3060 SPARC_ELF_PUT_WORD (htab
, output_bfd
, 0,
3061 (htab
->sgot
->contents
+ off
3062 + SPARC_ELF_WORD_BYTES (htab
)));
3066 if (off
>= (bfd_vma
) -2)
3069 relocation
= htab
->sgot
->output_offset
+ off
- got_base
;
3070 unresolved_reloc
= FALSE
;
3071 howto
= _bfd_sparc_elf_howto_table
+ r_type
;
3074 case R_SPARC_TLS_LDM_HI22
:
3075 case R_SPARC_TLS_LDM_LO10
:
3078 bfd_put_32 (output_bfd
, SPARC_NOP
, contents
+ rel
->r_offset
);
3081 off
= htab
->tls_ldm_got
.offset
;
3082 htab
->tls_ldm_got
.offset
|= 1;
3083 goto r_sparc_tlsldm
;
3085 case R_SPARC_TLS_LDO_HIX22
:
3086 case R_SPARC_TLS_LDO_LOX10
:
3089 relocation
-= dtpoff_base (info
);
3093 r_type
= (r_type
== R_SPARC_TLS_LDO_HIX22
3094 ? R_SPARC_TLS_LE_HIX22
: R_SPARC_TLS_LE_LOX10
);
3097 case R_SPARC_TLS_LE_HIX22
:
3098 case R_SPARC_TLS_LE_LOX10
:
3101 Elf_Internal_Rela outrel
;
3102 bfd_boolean skip
, relocate
= FALSE
;
3104 BFD_ASSERT (sreloc
!= NULL
);
3107 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
3109 if (outrel
.r_offset
== (bfd_vma
) -1)
3111 else if (outrel
.r_offset
== (bfd_vma
) -2)
3112 skip
= TRUE
, relocate
= TRUE
;
3113 outrel
.r_offset
+= (input_section
->output_section
->vma
3114 + input_section
->output_offset
);
3116 memset (&outrel
, 0, sizeof outrel
);
3119 outrel
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, 0, r_type
);
3120 outrel
.r_addend
= relocation
- dtpoff_base (info
)
3124 sparc_elf_append_rela (output_bfd
, sreloc
, &outrel
);
3127 relocation
= tpoff (info
, relocation
);
3130 case R_SPARC_TLS_LDM_CALL
:
3134 bfd_put_32 (output_bfd
, 0x90100000, contents
+ rel
->r_offset
);
3139 case R_SPARC_TLS_GD_CALL
:
3140 tls_type
= GOT_UNKNOWN
;
3141 if (h
== NULL
&& local_got_offsets
)
3142 tls_type
= _bfd_sparc_elf_local_got_tls_type (input_bfd
) [r_symndx
];
3144 tls_type
= _bfd_sparc_elf_hash_entry(h
)->tls_type
;
3146 || (r_type
== R_SPARC_TLS_GD_CALL
&& tls_type
== GOT_TLS_IE
))
3150 if (!info
->shared
&& (h
== NULL
|| h
->dynindx
== -1))
3153 bfd_put_32 (output_bfd
, SPARC_NOP
, contents
+ rel
->r_offset
);
3158 if (rel
+ 1 < relend
3159 && SPARC_ELF_R_TYPE (rel
[1].r_info
) == R_SPARC_TLS_GD_ADD
3160 && rel
[1].r_offset
== rel
->r_offset
+ 4
3161 && SPARC_ELF_R_SYMNDX (htab
, rel
[1].r_info
) == r_symndx
3162 && (((insn
= bfd_get_32 (input_bfd
,
3163 contents
+ rel
[1].r_offset
))
3164 >> 25) & 0x1f) == 8)
3167 call __tls_get_addr, %tgd_call(foo)
3168 add %reg1, %reg2, %o0, %tgd_add(foo)
3169 and change it into IE:
3170 {ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
3171 add %g7, %o0, %o0, %tie_add(foo).
3172 add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
3173 ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
3174 ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
3175 bfd_put_32 (output_bfd
, insn
| (ABI_64_P (output_bfd
) ? 0xc0580000 : 0xc0000000),
3176 contents
+ rel
->r_offset
);
3177 bfd_put_32 (output_bfd
, 0x9001c008,
3178 contents
+ rel
->r_offset
+ 4);
3183 bfd_put_32 (output_bfd
, 0x9001c008, contents
+ rel
->r_offset
);
3187 h
= (struct elf_link_hash_entry
*)
3188 bfd_link_hash_lookup (info
->hash
, "__tls_get_addr", FALSE
,
3190 BFD_ASSERT (h
!= NULL
);
3191 r_type
= R_SPARC_WPLT30
;
3192 howto
= _bfd_sparc_elf_howto_table
+ r_type
;
3193 goto r_sparc_wplt30
;
3195 case R_SPARC_TLS_GD_ADD
:
3196 tls_type
= GOT_UNKNOWN
;
3197 if (h
== NULL
&& local_got_offsets
)
3198 tls_type
= _bfd_sparc_elf_local_got_tls_type (input_bfd
) [r_symndx
];
3200 tls_type
= _bfd_sparc_elf_hash_entry(h
)->tls_type
;
3201 if (! info
->shared
|| tls_type
== GOT_TLS_IE
)
3203 /* add %reg1, %reg2, %reg3, %tgd_add(foo)
3205 {ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
3207 add %g7, %reg2, %reg3. */
3208 bfd_vma insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3209 if ((h
!= NULL
&& h
->dynindx
!= -1) || info
->shared
)
3210 relocation
= insn
| (ABI_64_P (output_bfd
) ? 0xc0580000 : 0xc0000000);
3212 relocation
= (insn
& ~0x7c000) | 0x1c000;
3213 bfd_put_32 (output_bfd
, relocation
, contents
+ rel
->r_offset
);
3217 case R_SPARC_TLS_LDM_ADD
:
3219 bfd_put_32 (output_bfd
, SPARC_NOP
, contents
+ rel
->r_offset
);
3222 case R_SPARC_TLS_LDO_ADD
:
3225 /* Change rs1 into %g7. */
3226 bfd_vma insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3227 insn
= (insn
& ~0x7c000) | 0x1c000;
3228 bfd_put_32 (output_bfd
, insn
, contents
+ rel
->r_offset
);
3232 case R_SPARC_TLS_IE_LD
:
3233 case R_SPARC_TLS_IE_LDX
:
3234 if (! info
->shared
&& (h
== NULL
|| h
->dynindx
== -1))
3236 bfd_vma insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3237 int rs2
= insn
& 0x1f;
3238 int rd
= (insn
>> 25) & 0x1f;
3241 relocation
= SPARC_NOP
;
3243 relocation
= 0x80100000 | (insn
& 0x3e00001f);
3244 bfd_put_32 (output_bfd
, relocation
, contents
+ rel
->r_offset
);
3248 case R_SPARC_TLS_IE_ADD
:
3249 /* Totally useless relocation. */
3252 case R_SPARC_TLS_DTPOFF32
:
3253 case R_SPARC_TLS_DTPOFF64
:
3254 relocation
-= dtpoff_base (info
);
3261 /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
3262 because such sections are not SEC_ALLOC and thus ld.so will
3263 not process them. */
3264 if (unresolved_reloc
3265 && !((input_section
->flags
& SEC_DEBUGGING
) != 0
3267 (*_bfd_error_handler
)
3268 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
3271 (long) rel
->r_offset
,
3273 h
->root
.root
.string
);
3275 r
= bfd_reloc_continue
;
3276 if (r_type
== R_SPARC_OLO10
)
3280 if (! ABI_64_P (output_bfd
))
3283 relocation
+= rel
->r_addend
;
3284 relocation
= (relocation
& 0x3ff) + ELF64_R_TYPE_DATA (rel
->r_info
);
3286 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3287 x
= (x
& ~(bfd_vma
) 0x1fff) | (relocation
& 0x1fff);
3288 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3290 r
= bfd_check_overflow (howto
->complain_on_overflow
,
3291 howto
->bitsize
, howto
->rightshift
,
3292 bfd_arch_bits_per_address (input_bfd
),
3295 else if (r_type
== R_SPARC_WDISP16
)
3299 relocation
+= rel
->r_addend
;
3300 relocation
-= (input_section
->output_section
->vma
3301 + input_section
->output_offset
);
3302 relocation
-= rel
->r_offset
;
3304 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3305 x
|= ((((relocation
>> 2) & 0xc000) << 6)
3306 | ((relocation
>> 2) & 0x3fff));
3307 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3309 r
= bfd_check_overflow (howto
->complain_on_overflow
,
3310 howto
->bitsize
, howto
->rightshift
,
3311 bfd_arch_bits_per_address (input_bfd
),
3314 else if (r_type
== R_SPARC_REV32
)
3318 relocation
= relocation
+ rel
->r_addend
;
3320 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3322 bfd_putl32 (/*input_bfd,*/ x
, contents
+ rel
->r_offset
);
3325 else if (r_type
== R_SPARC_TLS_LDO_HIX22
3326 || r_type
== R_SPARC_TLS_LE_HIX22
)
3330 relocation
+= rel
->r_addend
;
3331 if (r_type
== R_SPARC_TLS_LE_HIX22
)
3332 relocation
^= MINUS_ONE
;
3334 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3335 x
= (x
& ~(bfd_vma
) 0x3fffff) | ((relocation
>> 10) & 0x3fffff);
3336 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3339 else if (r_type
== R_SPARC_TLS_LDO_LOX10
3340 || r_type
== R_SPARC_TLS_LE_LOX10
)
3344 relocation
+= rel
->r_addend
;
3345 relocation
&= 0x3ff;
3346 if (r_type
== R_SPARC_TLS_LE_LOX10
)
3347 relocation
|= 0x1c00;
3349 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3350 x
= (x
& ~(bfd_vma
) 0x1fff) | relocation
;
3351 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3355 else if (r_type
== R_SPARC_HIX22
)
3359 relocation
+= rel
->r_addend
;
3360 relocation
= relocation
^ MINUS_ONE
;
3362 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3363 x
= (x
& ~(bfd_vma
) 0x3fffff) | ((relocation
>> 10) & 0x3fffff);
3364 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3366 r
= bfd_check_overflow (howto
->complain_on_overflow
,
3367 howto
->bitsize
, howto
->rightshift
,
3368 bfd_arch_bits_per_address (input_bfd
),
3371 else if (r_type
== R_SPARC_LOX10
)
3375 relocation
+= rel
->r_addend
;
3376 relocation
= (relocation
& 0x3ff) | 0x1c00;
3378 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3379 x
= (x
& ~(bfd_vma
) 0x1fff) | relocation
;
3380 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3384 else if ((r_type
== R_SPARC_WDISP30
|| r_type
== R_SPARC_WPLT30
)
3385 && sec_do_relax (input_section
)
3386 && rel
->r_offset
+ 4 < input_section
->size
)
3390 #define XCC (2 << 20)
3391 #define COND(x) (((x)&0xf)<<25)
3392 #define CONDA COND(0x8)
3393 #define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
3394 #define INSN_BA (F2(0,2) | CONDA)
3395 #define INSN_OR F3(2, 0x2, 0)
3396 #define INSN_NOP F2(0,4)
3400 /* If the instruction is a call with either:
3402 arithmetic instruction with rd == %o7
3403 where rs1 != %o7 and rs2 if it is register != %o7
3404 then we can optimize if the call destination is near
3405 by changing the call into a branch always. */
3406 x
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3407 y
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
+ 4);
3408 if ((x
& OP(~0)) == OP(1) && (y
& OP(~0)) == OP(2))
3410 if (((y
& OP3(~0)) == OP3(0x3d) /* restore */
3411 || ((y
& OP3(0x28)) == 0 /* arithmetic */
3412 && (y
& RD(~0)) == RD(O7
)))
3413 && (y
& RS1(~0)) != RS1(O7
)
3415 || (y
& RS2(~0)) != RS2(O7
)))
3419 reloc
= relocation
+ rel
->r_addend
- rel
->r_offset
;
3420 reloc
-= (input_section
->output_section
->vma
3421 + input_section
->output_offset
);
3423 /* Ensure the branch fits into simm22. */
3424 if ((reloc
& 3) == 0
3425 && ((reloc
& ~(bfd_vma
)0x7fffff) == 0
3426 || ((reloc
| 0x7fffff) == ~(bfd_vma
)0)))
3430 /* Check whether it fits into simm19. */
3431 if (((reloc
& 0x3c0000) == 0
3432 || (reloc
& 0x3c0000) == 0x3c0000)
3433 && (ABI_64_P (output_bfd
)
3434 || elf_elfheader (output_bfd
)->e_flags
& EF_SPARC_32PLUS
))
3435 x
= INSN_BPA
| (reloc
& 0x7ffff); /* ba,pt %xcc */
3437 x
= INSN_BA
| (reloc
& 0x3fffff); /* ba */
3438 bfd_put_32 (input_bfd
, x
, contents
+ rel
->r_offset
);
3440 if (rel
->r_offset
>= 4
3441 && (y
& (0xffffffff ^ RS1(~0)))
3442 == (INSN_OR
| RD(O7
) | RS2(G0
)))
3447 z
= bfd_get_32 (input_bfd
,
3448 contents
+ rel
->r_offset
- 4);
3449 if ((z
& (0xffffffff ^ RD(~0)))
3450 != (INSN_OR
| RS1(O7
) | RS2(G0
)))
3458 If call foo was replaced with ba, replace
3459 or %rN, %g0, %o7 with nop. */
3461 reg
= (y
& RS1(~0)) >> 14;
3462 if (reg
!= ((z
& RD(~0)) >> 25)
3463 || reg
== G0
|| reg
== O7
)
3466 bfd_put_32 (input_bfd
, (bfd_vma
) INSN_NOP
,
3467 contents
+ rel
->r_offset
+ 4);
3475 if (r
== bfd_reloc_continue
)
3476 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
3477 contents
, rel
->r_offset
,
3478 relocation
, rel
->r_addend
);
3480 if (r
!= bfd_reloc_ok
)
3485 case bfd_reloc_outofrange
:
3487 case bfd_reloc_overflow
:
3491 /* The Solaris native linker silently disregards overflows.
3492 We don't, but this breaks stabs debugging info, whose
3493 relocations are only 32-bits wide. Ignore overflows in
3494 this case and also for discarded entries. */
3495 if ((r_type
== R_SPARC_32
|| r_type
== R_SPARC_DISP32
)
3496 && (((input_section
->flags
& SEC_DEBUGGING
) != 0
3497 && strcmp (bfd_section_name (input_bfd
,
3500 || _bfd_elf_section_offset (output_bfd
, info
,
3508 /* Assume this is a call protected by other code that
3509 detect the symbol is undefined. If this is the case,
3510 we can safely ignore the overflow. If not, the
3511 program is hosed anyway, and a little warning isn't
3513 if (h
->root
.type
== bfd_link_hash_undefweak
3514 && howto
->pc_relative
)
3521 name
= bfd_elf_string_from_elf_section (input_bfd
,
3522 symtab_hdr
->sh_link
,
3527 name
= bfd_section_name (input_bfd
, sec
);
3529 if (! ((*info
->callbacks
->reloc_overflow
)
3530 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
3531 (bfd_vma
) 0, input_bfd
, input_section
,
3543 /* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
3544 and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
3545 is the offset of the associated .got.plt entry from
3546 _GLOBAL_OFFSET_TABLE_. */
3549 sparc_vxworks_build_plt_entry (bfd
*output_bfd
, struct bfd_link_info
*info
,
3550 bfd_vma plt_offset
, bfd_vma plt_index
,
3554 const bfd_vma
*plt_entry
;
3555 struct _bfd_sparc_elf_link_hash_table
*htab
;
3557 Elf_Internal_Rela rela
;
3559 htab
= _bfd_sparc_elf_hash_table (info
);
3562 plt_entry
= sparc_vxworks_shared_plt_entry
;
3567 plt_entry
= sparc_vxworks_exec_plt_entry
;
3568 got_base
= (htab
->elf
.hgot
->root
.u
.def
.value
3569 + htab
->elf
.hgot
->root
.u
.def
.section
->output_offset
3570 + htab
->elf
.hgot
->root
.u
.def
.section
->output_section
->vma
);
3573 /* Fill in the entry in the procedure linkage table. */
3574 bfd_put_32 (output_bfd
, plt_entry
[0] + ((got_base
+ got_offset
) >> 10),
3575 htab
->splt
->contents
+ plt_offset
);
3576 bfd_put_32 (output_bfd
, plt_entry
[1] + ((got_base
+ got_offset
) & 0x3ff),
3577 htab
->splt
->contents
+ plt_offset
+ 4);
3578 bfd_put_32 (output_bfd
, plt_entry
[2],
3579 htab
->splt
->contents
+ plt_offset
+ 8);
3580 bfd_put_32 (output_bfd
, plt_entry
[3],
3581 htab
->splt
->contents
+ plt_offset
+ 12);
3582 bfd_put_32 (output_bfd
, plt_entry
[4],
3583 htab
->splt
->contents
+ plt_offset
+ 16);
3584 bfd_put_32 (output_bfd
, plt_entry
[5] + (plt_index
>> 10),
3585 htab
->splt
->contents
+ plt_offset
+ 20);
3586 /* PC-relative displacement for a branch to the start of
3588 bfd_put_32 (output_bfd
, plt_entry
[6] + (((-plt_offset
- 24) >> 2)
3590 htab
->splt
->contents
+ plt_offset
+ 24);
3591 bfd_put_32 (output_bfd
, plt_entry
[7] + (plt_index
& 0x3ff),
3592 htab
->splt
->contents
+ plt_offset
+ 28);
3594 /* Fill in the .got.plt entry, pointing initially at the
3595 second half of the PLT entry. */
3596 BFD_ASSERT (htab
->sgotplt
!= NULL
);
3597 bfd_put_32 (output_bfd
,
3598 htab
->splt
->output_section
->vma
3599 + htab
->splt
->output_offset
3601 htab
->sgotplt
->contents
+ got_offset
);
3603 /* Add relocations to .rela.plt.unloaded. */
3606 loc
= (htab
->srelplt2
->contents
3607 + (2 + 3 * plt_index
) * sizeof (Elf32_External_Rela
));
3609 /* Relocate the initial sethi. */
3610 rela
.r_offset
= (htab
->splt
->output_section
->vma
3611 + htab
->splt
->output_offset
3613 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_SPARC_HI22
);
3614 rela
.r_addend
= got_offset
;
3615 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3616 loc
+= sizeof (Elf32_External_Rela
);
3618 /* Likewise the following or. */
3620 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_SPARC_LO10
);
3621 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3622 loc
+= sizeof (Elf32_External_Rela
);
3624 /* Relocate the .got.plt entry. */
3625 rela
.r_offset
= (htab
->sgotplt
->output_section
->vma
3626 + htab
->sgotplt
->output_offset
3628 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hplt
->indx
, R_SPARC_32
);
3629 rela
.r_addend
= plt_offset
+ 20;
3630 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3634 /* Finish up dynamic symbol handling. We set the contents of various
3635 dynamic sections here. */
3638 _bfd_sparc_elf_finish_dynamic_symbol (bfd
*output_bfd
,
3639 struct bfd_link_info
*info
,
3640 struct elf_link_hash_entry
*h
,
3641 Elf_Internal_Sym
*sym
)
3644 struct _bfd_sparc_elf_link_hash_table
*htab
;
3645 const struct elf_backend_data
*bed
;
3647 htab
= _bfd_sparc_elf_hash_table (info
);
3648 dynobj
= htab
->elf
.dynobj
;
3649 bed
= get_elf_backend_data (output_bfd
);
3651 if (h
->plt
.offset
!= (bfd_vma
) -1)
3655 Elf_Internal_Rela rela
;
3657 bfd_vma r_offset
, got_offset
;
3660 /* This symbol has an entry in the PLT. Set it up. */
3662 BFD_ASSERT (h
->dynindx
!= -1);
3665 srela
= htab
->srelplt
;
3666 BFD_ASSERT (splt
!= NULL
&& srela
!= NULL
);
3668 /* Fill in the entry in the .rela.plt section. */
3669 if (htab
->is_vxworks
)
3671 /* Work out the index of this PLT entry. */
3672 rela_index
= ((h
->plt
.offset
- htab
->plt_header_size
)
3673 / htab
->plt_entry_size
);
3675 /* Calculate the offset of the associated .got.plt entry.
3676 The first three entries are reserved. */
3677 got_offset
= (rela_index
+ 3) * 4;
3679 sparc_vxworks_build_plt_entry (output_bfd
, info
, h
->plt
.offset
,
3680 rela_index
, got_offset
);
3683 /* On VxWorks, the relocation points to the .got.plt entry,
3684 not the .plt entry. */
3685 rela
.r_offset
= (htab
->sgotplt
->output_section
->vma
3686 + htab
->sgotplt
->output_offset
3692 /* Fill in the entry in the procedure linkage table. */
3693 rela_index
= SPARC_ELF_BUILD_PLT_ENTRY (htab
, output_bfd
, splt
,
3694 h
->plt
.offset
, splt
->size
,
3697 rela
.r_offset
= r_offset
3698 + (splt
->output_section
->vma
+ splt
->output_offset
);
3699 if (! ABI_64_P (output_bfd
)
3700 || h
->plt
.offset
< (PLT64_LARGE_THRESHOLD
* PLT64_ENTRY_SIZE
))
3706 rela
.r_addend
= (-(h
->plt
.offset
+ 4)
3707 - splt
->output_section
->vma
3708 - splt
->output_offset
);
3711 rela
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, h
->dynindx
, R_SPARC_JMP_SLOT
);
3713 /* Adjust for the first 4 reserved elements in the .plt section
3714 when setting the offset in the .rela.plt section.
3715 Sun forgot to read their own ABI and copied elf32-sparc behaviour,
3716 thus .plt[4] has corresponding .rela.plt[0] and so on. */
3718 loc
= srela
->contents
;
3719 loc
+= rela_index
* bed
->s
->sizeof_rela
;
3720 bed
->s
->swap_reloca_out (output_bfd
, &rela
, loc
);
3722 if (!h
->def_regular
)
3724 /* Mark the symbol as undefined, rather than as defined in
3725 the .plt section. Leave the value alone. */
3726 sym
->st_shndx
= SHN_UNDEF
;
3727 /* If the symbol is weak, we do need to clear the value.
3728 Otherwise, the PLT entry would provide a definition for
3729 the symbol even if the symbol wasn't defined anywhere,
3730 and so the symbol would never be NULL. */
3731 if (!h
->ref_regular_nonweak
)
3736 if (h
->got
.offset
!= (bfd_vma
) -1
3737 && _bfd_sparc_elf_hash_entry(h
)->tls_type
!= GOT_TLS_GD
3738 && _bfd_sparc_elf_hash_entry(h
)->tls_type
!= GOT_TLS_IE
)
3742 Elf_Internal_Rela rela
;
3744 /* This symbol has an entry in the GOT. Set it up. */
3747 srela
= htab
->srelgot
;
3748 BFD_ASSERT (sgot
!= NULL
&& srela
!= NULL
);
3750 rela
.r_offset
= (sgot
->output_section
->vma
3751 + sgot
->output_offset
3752 + (h
->got
.offset
&~ (bfd_vma
) 1));
3754 /* If this is a -Bsymbolic link, and the symbol is defined
3755 locally, we just want to emit a RELATIVE reloc. Likewise if
3756 the symbol was forced to be local because of a version file.
3757 The entry in the global offset table will already have been
3758 initialized in the relocate_section function. */
3760 && (info
->symbolic
|| h
->dynindx
== -1)
3763 asection
*sec
= h
->root
.u
.def
.section
;
3764 rela
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, 0, R_SPARC_RELATIVE
);
3765 rela
.r_addend
= (h
->root
.u
.def
.value
3766 + sec
->output_section
->vma
3767 + sec
->output_offset
);
3771 rela
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, h
->dynindx
, R_SPARC_GLOB_DAT
);
3775 SPARC_ELF_PUT_WORD (htab
, output_bfd
, 0,
3776 sgot
->contents
+ (h
->got
.offset
& ~(bfd_vma
) 1));
3777 sparc_elf_append_rela (output_bfd
, srela
, &rela
);
3783 Elf_Internal_Rela rela
;
3785 /* This symbols needs a copy reloc. Set it up. */
3786 BFD_ASSERT (h
->dynindx
!= -1);
3788 s
= bfd_get_section_by_name (h
->root
.u
.def
.section
->owner
,
3790 BFD_ASSERT (s
!= NULL
);
3792 rela
.r_offset
= (h
->root
.u
.def
.value
3793 + h
->root
.u
.def
.section
->output_section
->vma
3794 + h
->root
.u
.def
.section
->output_offset
);
3795 rela
.r_info
= SPARC_ELF_R_INFO (htab
, NULL
, h
->dynindx
, R_SPARC_COPY
);
3797 sparc_elf_append_rela (output_bfd
, s
, &rela
);
3800 /* Mark some specially defined symbols as absolute. On VxWorks,
3801 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
3802 ".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
3803 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
3804 || (!htab
->is_vxworks
3805 && (h
== htab
->elf
.hgot
|| h
== htab
->elf
.hplt
)))
3806 sym
->st_shndx
= SHN_ABS
;
3811 /* Finish up the dynamic sections. */
3814 sparc_finish_dyn (bfd
*output_bfd
, struct bfd_link_info
*info
,
3815 bfd
*dynobj
, asection
*sdyn
,
3816 asection
*splt ATTRIBUTE_UNUSED
)
3818 struct _bfd_sparc_elf_link_hash_table
*htab
;
3819 const struct elf_backend_data
*bed
;
3820 bfd_byte
*dyncon
, *dynconend
;
3822 int stt_regidx
= -1;
3823 bfd_boolean abi_64_p
;
3825 htab
= _bfd_sparc_elf_hash_table (info
);
3826 bed
= get_elf_backend_data (output_bfd
);
3827 dynsize
= bed
->s
->sizeof_dyn
;
3828 dynconend
= sdyn
->contents
+ sdyn
->size
;
3829 abi_64_p
= ABI_64_P (output_bfd
);
3830 for (dyncon
= sdyn
->contents
; dyncon
< dynconend
; dyncon
+= dynsize
)
3832 Elf_Internal_Dyn dyn
;
3836 bed
->s
->swap_dyn_in (dynobj
, dyncon
, &dyn
);
3838 if (htab
->is_vxworks
&& dyn
.d_tag
== DT_RELASZ
)
3840 /* On VxWorks, DT_RELASZ should not include the relocations
3844 dyn
.d_un
.d_val
-= htab
->srelplt
->size
;
3845 bed
->s
->swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3848 else if (htab
->is_vxworks
&& dyn
.d_tag
== DT_PLTGOT
)
3850 /* On VxWorks, DT_PLTGOT should point to the start of the GOT,
3851 not to the start of the PLT. */
3854 dyn
.d_un
.d_val
= (htab
->sgotplt
->output_section
->vma
3855 + htab
->sgotplt
->output_offset
);
3856 bed
->s
->swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3859 else if (htab
->is_vxworks
3860 && elf_vxworks_finish_dynamic_entry (output_bfd
, &dyn
))
3861 bed
->s
->swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3862 else if (abi_64_p
&& dyn
.d_tag
== DT_SPARC_REGISTER
)
3864 if (stt_regidx
== -1)
3867 _bfd_elf_link_lookup_local_dynindx (info
, output_bfd
, -1);
3868 if (stt_regidx
== -1)
3871 dyn
.d_un
.d_val
= stt_regidx
++;
3872 bed
->s
->swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3878 case DT_PLTGOT
: name
= ".plt"; size
= FALSE
; break;
3879 case DT_PLTRELSZ
: name
= ".rela.plt"; size
= TRUE
; break;
3880 case DT_JMPREL
: name
= ".rela.plt"; size
= FALSE
; break;
3881 default: name
= NULL
; size
= FALSE
; break;
3888 s
= bfd_get_section_by_name (output_bfd
, name
);
3894 dyn
.d_un
.d_ptr
= s
->vma
;
3896 dyn
.d_un
.d_val
= s
->size
;
3898 bed
->s
->swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3905 /* Install the first PLT entry in a VxWorks executable and make sure that
3906 .rela.plt.unloaded relocations have the correct symbol indexes. */
3909 sparc_vxworks_finish_exec_plt (bfd
*output_bfd
, struct bfd_link_info
*info
)
3911 struct _bfd_sparc_elf_link_hash_table
*htab
;
3912 Elf_Internal_Rela rela
;
3916 htab
= _bfd_sparc_elf_hash_table (info
);
3918 /* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
3919 got_base
= (htab
->elf
.hgot
->root
.u
.def
.section
->output_section
->vma
3920 + htab
->elf
.hgot
->root
.u
.def
.section
->output_offset
3921 + htab
->elf
.hgot
->root
.u
.def
.value
);
3923 /* Install the initial PLT entry. */
3924 bfd_put_32 (output_bfd
,
3925 sparc_vxworks_exec_plt0_entry
[0] + ((got_base
+ 8) >> 10),
3926 htab
->splt
->contents
);
3927 bfd_put_32 (output_bfd
,
3928 sparc_vxworks_exec_plt0_entry
[1] + ((got_base
+ 8) & 0x3ff),
3929 htab
->splt
->contents
+ 4);
3930 bfd_put_32 (output_bfd
,
3931 sparc_vxworks_exec_plt0_entry
[2],
3932 htab
->splt
->contents
+ 8);
3933 bfd_put_32 (output_bfd
,
3934 sparc_vxworks_exec_plt0_entry
[3],
3935 htab
->splt
->contents
+ 12);
3936 bfd_put_32 (output_bfd
,
3937 sparc_vxworks_exec_plt0_entry
[4],
3938 htab
->splt
->contents
+ 16);
3940 loc
= htab
->srelplt2
->contents
;
3942 /* Add an unloaded relocation for the initial entry's "sethi". */
3943 rela
.r_offset
= (htab
->splt
->output_section
->vma
3944 + htab
->splt
->output_offset
);
3945 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_SPARC_HI22
);
3947 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3948 loc
+= sizeof (Elf32_External_Rela
);
3950 /* Likewise the following "or". */
3952 rela
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_SPARC_LO10
);
3953 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3954 loc
+= sizeof (Elf32_External_Rela
);
3956 /* Fix up the remaining .rela.plt.unloaded relocations. They may have
3957 the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
3958 in which symbols were output. */
3959 while (loc
< htab
->srelplt2
->contents
+ htab
->srelplt2
->size
)
3961 Elf_Internal_Rela rel
;
3963 /* The entry's initial "sethi" (against _G_O_T_). */
3964 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
3965 rel
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_SPARC_HI22
);
3966 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
3967 loc
+= sizeof (Elf32_External_Rela
);
3969 /* The following "or" (also against _G_O_T_). */
3970 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
3971 rel
.r_info
= ELF32_R_INFO (htab
->elf
.hgot
->indx
, R_SPARC_LO10
);
3972 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
3973 loc
+= sizeof (Elf32_External_Rela
);
3975 /* The .got.plt entry (against _P_L_T_). */
3976 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
3977 rel
.r_info
= ELF32_R_INFO (htab
->elf
.hplt
->indx
, R_SPARC_32
);
3978 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
3979 loc
+= sizeof (Elf32_External_Rela
);
3983 /* Install the first PLT entry in a VxWorks shared object. */
3986 sparc_vxworks_finish_shared_plt (bfd
*output_bfd
, struct bfd_link_info
*info
)
3988 struct _bfd_sparc_elf_link_hash_table
*htab
;
3991 htab
= _bfd_sparc_elf_hash_table (info
);
3992 for (i
= 0; i
< ARRAY_SIZE (sparc_vxworks_shared_plt0_entry
); i
++)
3993 bfd_put_32 (output_bfd
, sparc_vxworks_shared_plt0_entry
[i
],
3994 htab
->splt
->contents
+ i
* 4);
3998 _bfd_sparc_elf_finish_dynamic_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
4002 struct _bfd_sparc_elf_link_hash_table
*htab
;
4004 htab
= _bfd_sparc_elf_hash_table (info
);
4005 dynobj
= htab
->elf
.dynobj
;
4007 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
4009 if (elf_hash_table (info
)->dynamic_sections_created
)
4013 splt
= bfd_get_section_by_name (dynobj
, ".plt");
4014 BFD_ASSERT (splt
!= NULL
&& sdyn
!= NULL
);
4016 if (!sparc_finish_dyn (output_bfd
, info
, dynobj
, sdyn
, splt
))
4019 /* Initialize the contents of the .plt section. */
4022 if (htab
->is_vxworks
)
4025 sparc_vxworks_finish_shared_plt (output_bfd
, info
);
4027 sparc_vxworks_finish_exec_plt (output_bfd
, info
);
4031 memset (splt
->contents
, 0, htab
->plt_header_size
);
4032 if (!ABI_64_P (output_bfd
))
4033 bfd_put_32 (output_bfd
, (bfd_vma
) SPARC_NOP
,
4034 splt
->contents
+ splt
->size
- 4);
4038 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
4039 = (htab
->is_vxworks
|| !ABI_64_P (output_bfd
))
4040 ? 0 : htab
->plt_entry_size
;
4043 /* Set the first entry in the global offset table to the address of
4044 the dynamic section. */
4045 if (htab
->sgot
&& htab
->sgot
->size
> 0)
4047 bfd_vma val
= (sdyn
?
4048 sdyn
->output_section
->vma
+ sdyn
->output_offset
:
4051 SPARC_ELF_PUT_WORD (htab
, output_bfd
, val
, htab
->sgot
->contents
);
4055 elf_section_data (htab
->sgot
->output_section
)->this_hdr
.sh_entsize
=
4056 SPARC_ELF_WORD_BYTES (htab
);
4062 /* Set the right machine number for a SPARC ELF file. */
4065 _bfd_sparc_elf_object_p (bfd
*abfd
)
4067 if (ABI_64_P (abfd
))
4069 unsigned long mach
= bfd_mach_sparc_v9
;
4071 if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_SUN_US3
)
4072 mach
= bfd_mach_sparc_v9b
;
4073 else if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_SUN_US1
)
4074 mach
= bfd_mach_sparc_v9a
;
4075 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
, mach
);
4079 if (elf_elfheader (abfd
)->e_machine
== EM_SPARC32PLUS
)
4081 if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_SUN_US3
)
4082 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
,
4083 bfd_mach_sparc_v8plusb
);
4084 else if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_SUN_US1
)
4085 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
,
4086 bfd_mach_sparc_v8plusa
);
4087 else if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_32PLUS
)
4088 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
,
4089 bfd_mach_sparc_v8plus
);
4093 else if (elf_elfheader (abfd
)->e_flags
& EF_SPARC_LEDATA
)
4094 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
,
4095 bfd_mach_sparc_sparclite_le
);
4097 return bfd_default_set_arch_mach (abfd
, bfd_arch_sparc
, bfd_mach_sparc
);
4101 /* Return address for Ith PLT stub in section PLT, for relocation REL
4102 or (bfd_vma) -1 if it should not be included. */
4105 _bfd_sparc_elf_plt_sym_val (bfd_vma i
, const asection
*plt
, const arelent
*rel
)
4107 if (ABI_64_P (plt
->owner
))
4111 i
+= PLT64_HEADER_SIZE
/ PLT64_ENTRY_SIZE
;
4112 if (i
< PLT64_LARGE_THRESHOLD
)
4113 return plt
->vma
+ i
* PLT64_ENTRY_SIZE
;
4115 j
= (i
- PLT64_LARGE_THRESHOLD
) % 160;
4117 return plt
->vma
+ i
* PLT64_ENTRY_SIZE
+ j
* 4 * 6;
4120 return rel
->address
;